/** * @file definition of host message ring functionality * Provides type definitions and function prototypes used to link the * DHD OS, bus, and protocol modules. * * Copyright (C) 1999-2019, Broadcom. * * Unless you and Broadcom execute a separate written software license * agreement governing use of this software, this software is licensed to you * under the terms of the GNU General Public License version 2 (the "GPL"), * available at http://www.broadcom.com/licenses/GPLv2.php, with the * following added to such license: * * As a special exception, the copyright holders of this software give you * permission to link this software with independent modules, and to copy and * distribute the resulting executable under terms of your choice, provided that * you also meet, for each linked independent module, the terms and conditions of * the license of that module. An independent module is a module which is not * derived from this software. The special exception does not apply to any * modifications of the software. * * Notwithstanding the above, under no circumstances may you combine this * software in any way with any other Broadcom software provided under a license * other than the GPL, without Broadcom's express prior written consent. * * * <> * * $Id: dhd_msgbuf.c 825801 2019-06-17 10:51:10Z $ */ #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #if defined(DHD_LB) #include #include #define DHD_LB_WORKQ_SZ (8192) #define DHD_LB_WORKQ_SYNC (16) #define DHD_LB_WORK_SCHED (DHD_LB_WORKQ_SYNC * 2) #endif /* DHD_LB */ #include #include #include #include #include #ifdef DHD_EWPR_VER2 #include #endif /* DHD_EWPR_VER2 */ extern char dhd_version[]; extern char fw_version[]; /** * Host configures a soft doorbell for d2h rings, by specifying a 32bit host * address where a value must be written. Host may also interrupt coalescing * on this soft doorbell. * Use Case: Hosts with network processors, may register with the dongle the * network processor's thread wakeup register and a value corresponding to the * core/thread context. Dongle will issue a write transaction * to the PCIE RC which will need to be routed to the mapped register space, by * the host. */ /* #define DHD_D2H_SOFT_DOORBELL_SUPPORT */ /* Dependency Check */ #if defined(IOCTLRESP_USE_CONSTMEM) && defined(DHD_USE_STATIC_CTRLBUF) #error "DHD_USE_STATIC_CTRLBUF is NOT working with DHD_USE_OSLPKT_FOR_RESPBUF" #endif /* IOCTLRESP_USE_CONSTMEM && DHD_USE_STATIC_CTRLBUF */ #define RETRIES 2 /* # of retries to retrieve matching ioctl response */ #define DEFAULT_RX_BUFFERS_TO_POST 256 #define RXBUFPOST_THRESHOLD 32 #define RX_BUF_BURST 32 /* Rx buffers for MSDU Data */ #define DHD_STOP_QUEUE_THRESHOLD 200 #define DHD_START_QUEUE_THRESHOLD 100 #define RX_DMA_OFFSET 8 /* Mem2mem DMA inserts an extra 8 */ #define IOCT_RETBUF_SIZE (RX_DMA_OFFSET + WLC_IOCTL_MAXLEN) /* flags for ioctl pending status */ #define MSGBUF_IOCTL_ACK_PENDING (1<<0) #define MSGBUF_IOCTL_RESP_PENDING (1<<1) #define DHD_IOCTL_REQ_PKTBUFSZ 2048 #define MSGBUF_IOCTL_MAX_RQSTLEN (DHD_IOCTL_REQ_PKTBUFSZ - H2DRING_CTRL_SUB_ITEMSIZE) #define DMA_ALIGN_LEN 4 #define DMA_D2H_SCRATCH_BUF_LEN 8 #define DMA_XFER_LEN_LIMIT 0x400000 #ifdef BCM_HOST_BUF #ifndef DMA_HOST_BUFFER_LEN #define DMA_HOST_BUFFER_LEN 0x200000 #endif // endif #endif /* BCM_HOST_BUF */ #define DHD_FLOWRING_IOCTL_BUFPOST_PKTSZ 8192 #define DHD_FLOWRING_DEFAULT_NITEMS_POSTED_H2D 1 #define DHD_FLOWRING_MAX_EVENTBUF_POST 32 #define DHD_FLOWRING_MAX_IOCTLRESPBUF_POST 8 #define DHD_H2D_INFORING_MAX_BUF_POST 32 #define DHD_MAX_TSBUF_POST 8 #define DHD_PROT_FUNCS 43 /* Length of buffer in host for bus throughput measurement */ #define DHD_BUS_TPUT_BUF_LEN 2048 #define TXP_FLUSH_NITEMS /* optimization to write "n" tx items at a time to ring */ #define TXP_FLUSH_MAX_ITEMS_FLUSH_CNT 48 #define RING_NAME_MAX_LENGTH 24 #define CTRLSUB_HOSTTS_MEESAGE_SIZE 1024 /* Giving room before ioctl_trans_id rollsover. */ #define BUFFER_BEFORE_ROLLOVER 300 /* 512K memory + 32K registers */ #define SNAPSHOT_UPLOAD_BUF_SIZE ((512 + 32) * 1024) struct msgbuf_ring; /* ring context for common and flow rings */ /** * PCIE D2H DMA Complete Sync Modes * * Firmware may interrupt the host, prior to the D2H Mem2Mem DMA completes into * Host system memory. A WAR using one of 3 approaches is needed: * 1. Dongle places a modulo-253 seqnum in last word of each D2H message * 2. XOR Checksum, with epoch# in each work item. Dongle builds an XOR checksum * writes in the last word of each work item. Each work item has a seqnum * number = sequence num % 253. * * 3. Read Barrier: Dongle does a host memory read access prior to posting an * interrupt, ensuring that D2H data transfer indeed completed. * 4. Dongle DMA's all indices after producing items in the D2H ring, flushing * ring contents before the indices. * * Host does not sync for DMA to complete with option #3 or #4, and a noop sync * callback (see dhd_prot_d2h_sync_none) may be bound. * * Dongle advertizes host side sync mechanism requirements. */ #define PCIE_D2H_SYNC_WAIT_TRIES (512U) #define PCIE_D2H_SYNC_NUM_OF_STEPS (5U) #define PCIE_D2H_SYNC_DELAY (100UL) /* in terms of usecs */ #define HWA_DB_TYPE_RXPOST (0x0050) #define HWA_DB_TYPE_TXCPLT (0x0060) #define HWA_DB_TYPE_RXCPLT (0x0170) #define HWA_DB_INDEX_VALUE(val) ((uint32)(val) << 16) #define HWA_ENAB_BITMAP_RXPOST (1U << 0) /* 1A */ #define HWA_ENAB_BITMAP_RXCPLT (1U << 1) /* 2B */ #define HWA_ENAB_BITMAP_TXCPLT (1U << 2) /* 4B */ /** * Custom callback attached based upon D2H DMA Sync mode advertized by dongle. * * On success: return cmn_msg_hdr_t::msg_type * On failure: return 0 (invalid msg_type) */ typedef uint8 (* d2h_sync_cb_t)(dhd_pub_t *dhd, struct msgbuf_ring *ring, volatile cmn_msg_hdr_t *msg, int msglen); /** * Custom callback attached based upon D2H DMA Sync mode advertized by dongle. * For EDL messages. * * On success: return cmn_msg_hdr_t::msg_type * On failure: return 0 (invalid msg_type) */ #ifdef EWP_EDL typedef int (* d2h_edl_sync_cb_t)(dhd_pub_t *dhd, struct msgbuf_ring *ring, volatile cmn_msg_hdr_t *msg); #endif /* EWP_EDL */ /* * +---------------------------------------------------------------------------- * * RingIds and FlowId are not equivalent as ringids include D2H rings whereas * flowids do not. * * Dongle advertizes the max H2D rings, as max_sub_queues = 'N' which includes * the H2D common rings as well as the (N-BCMPCIE_H2D_COMMON_MSGRINGS) flowrings * * Here is a sample mapping for (based on PCIE Full Dongle Rev5) where, * BCMPCIE_H2D_COMMON_MSGRINGS = 2, i.e. 2 H2D common rings, * BCMPCIE_COMMON_MSGRINGS = 5, i.e. include 3 D2H common rings. * * H2D Control Submit RingId = 0 FlowId = 0 reserved never allocated * H2D RxPost Submit RingId = 1 FlowId = 1 reserved never allocated * * D2H Control Complete RingId = 2 * D2H Transmit Complete RingId = 3 * D2H Receive Complete RingId = 4 * * H2D TxPost FLOWRING RingId = 5 FlowId = 2 (1st flowring) * H2D TxPost FLOWRING RingId = 6 FlowId = 3 (2nd flowring) * H2D TxPost FLOWRING RingId = 5 + (N-1) FlowId = (N-1) (Nth flowring) * * When TxPost FlowId(s) are allocated, the FlowIds [0..FLOWID_RESERVED) are * unused, where FLOWID_RESERVED is BCMPCIE_H2D_COMMON_MSGRINGS. * * Example: when a system supports 4 bc/mc and 128 uc flowrings, with * BCMPCIE_H2D_COMMON_MSGRINGS = 2, and BCMPCIE_H2D_COMMON_MSGRINGS = 5, and the * FlowId values would be in the range [2..133] and the corresponding * RingId values would be in the range [5..136]. * * The flowId allocator, may chose to, allocate Flowids: * bc/mc (per virtual interface) in one consecutive range [2..(2+VIFS)) * X# of uc flowids in consecutive ranges (per station Id), where X is the * packet's access category (e.g. 4 uc flowids per station). * * CAUTION: * When DMA indices array feature is used, RingId=5, corresponding to the 0th * FLOWRING, will actually use the FlowId as index into the H2D DMA index, * since the FlowId truly represents the index in the H2D DMA indices array. * * Likewise, in the D2H direction, the RingId - BCMPCIE_H2D_COMMON_MSGRINGS, * will represent the index in the D2H DMA indices array. * * +---------------------------------------------------------------------------- */ /* First TxPost Flowring Id */ #define DHD_FLOWRING_START_FLOWID BCMPCIE_H2D_COMMON_MSGRINGS /* Determine whether a ringid belongs to a TxPost flowring */ #define DHD_IS_FLOWRING(ringid, max_flow_rings) \ ((ringid) >= BCMPCIE_COMMON_MSGRINGS && \ (ringid) < ((max_flow_rings) + BCMPCIE_COMMON_MSGRINGS)) /* Convert a H2D TxPost FlowId to a MsgBuf RingId */ #define DHD_FLOWID_TO_RINGID(flowid) \ (BCMPCIE_COMMON_MSGRINGS + ((flowid) - BCMPCIE_H2D_COMMON_MSGRINGS)) /* Convert a MsgBuf RingId to a H2D TxPost FlowId */ #define DHD_RINGID_TO_FLOWID(ringid) \ (BCMPCIE_H2D_COMMON_MSGRINGS + ((ringid) - BCMPCIE_COMMON_MSGRINGS)) /* Convert a H2D MsgBuf RingId to an offset index into the H2D DMA indices array * This may be used for the H2D DMA WR index array or H2D DMA RD index array or * any array of H2D rings. */ #define DHD_H2D_RING_OFFSET(ringid) \ (((ringid) >= BCMPCIE_COMMON_MSGRINGS) ? DHD_RINGID_TO_FLOWID(ringid) : (ringid)) /* Convert a H2D MsgBuf Flowring Id to an offset index into the H2D DMA indices array * This may be used for IFRM. */ #define DHD_H2D_FRM_FLOW_RING_OFFSET(ringid) \ ((ringid) - BCMPCIE_COMMON_MSGRINGS) /* Convert a D2H MsgBuf RingId to an offset index into the D2H DMA indices array * This may be used for the D2H DMA WR index array or D2H DMA RD index array or * any array of D2H rings. * d2h debug ring is located at the end, i.e. after all the tx flow rings and h2d debug ring * max_h2d_rings: total number of h2d rings */ #define DHD_D2H_RING_OFFSET(ringid, max_h2d_rings) \ ((ringid) > (max_h2d_rings) ? \ ((ringid) - max_h2d_rings) : \ ((ringid) - BCMPCIE_H2D_COMMON_MSGRINGS)) /* Convert a D2H DMA Indices Offset to a RingId */ #define DHD_D2H_RINGID(offset) \ ((offset) + BCMPCIE_H2D_COMMON_MSGRINGS) #define DHD_DMAH_NULL ((void*)NULL) /* * Pad a DMA-able buffer by an additional cachline. If the end of the DMA-able * buffer does not occupy the entire cacheline, and another object is placed * following the DMA-able buffer, data corruption may occur if the DMA-able * buffer is used to DMAing into (e.g. D2H direction), when HW cache coherency * is not available. */ #if defined(L1_CACHE_BYTES) #define DHD_DMA_PAD (L1_CACHE_BYTES) #else #define DHD_DMA_PAD (128) #endif // endif /* * +---------------------------------------------------------------------------- * Flowring Pool * * Unlike common rings, which are attached very early on (dhd_prot_attach), * flowrings are dynamically instantiated. Moreover, flowrings may require a * larger DMA-able buffer. To avoid issues with fragmented cache coherent * DMA-able memory, a pre-allocated pool of msgbuf_ring_t is allocated once. * The DMA-able buffers are attached to these pre-allocated msgbuf_ring. * * Each DMA-able buffer may be allocated independently, or may be carved out * of a single large contiguous region that is registered with the protocol * layer into flowrings_dma_buf. On a 64bit platform, this contiguous region * may not span 0x00000000FFFFFFFF (avoid dongle side 64bit ptr arithmetic). * * No flowring pool action is performed in dhd_prot_attach(), as the number * of h2d rings is not yet known. * * In dhd_prot_init(), the dongle advertized number of h2d rings is used to * determine the number of flowrings required, and a pool of msgbuf_rings are * allocated and a DMA-able buffer (carved or allocated) is attached. * See: dhd_prot_flowrings_pool_attach() * * A flowring msgbuf_ring object may be fetched from this pool during flowring * creation, using the flowid. Likewise, flowrings may be freed back into the * pool on flowring deletion. * See: dhd_prot_flowrings_pool_fetch(), dhd_prot_flowrings_pool_release() * * In dhd_prot_detach(), the flowring pool is detached. The DMA-able buffers * are detached (returned back to the carved region or freed), and the pool of * msgbuf_ring and any objects allocated against it are freed. * See: dhd_prot_flowrings_pool_detach() * * In dhd_prot_reset(), the flowring pool is simply reset by returning it to a * state as-if upon an attach. All DMA-able buffers are retained. * Following a dhd_prot_reset(), in a subsequent dhd_prot_init(), the flowring * pool attach will notice that the pool persists and continue to use it. This * will avoid the case of a fragmented DMA-able region. * * +---------------------------------------------------------------------------- */ /* Conversion of a flowid to a flowring pool index */ #define DHD_FLOWRINGS_POOL_OFFSET(flowid) \ ((flowid) - BCMPCIE_H2D_COMMON_MSGRINGS) /* Fetch the msgbuf_ring_t from the flowring pool given a flowid */ #define DHD_RING_IN_FLOWRINGS_POOL(prot, flowid) \ (msgbuf_ring_t*)((prot)->h2d_flowrings_pool) + \ DHD_FLOWRINGS_POOL_OFFSET(flowid) /* Traverse each flowring in the flowring pool, assigning ring and flowid */ #define FOREACH_RING_IN_FLOWRINGS_POOL(prot, ring, flowid, total_flowrings) \ for ((flowid) = DHD_FLOWRING_START_FLOWID, \ (ring) = DHD_RING_IN_FLOWRINGS_POOL(prot, flowid); \ (flowid) < ((total_flowrings) + DHD_FLOWRING_START_FLOWID); \ (ring)++, (flowid)++) /* Used in loopback tests */ typedef struct dhd_dmaxfer { dhd_dma_buf_t srcmem; dhd_dma_buf_t dstmem; uint32 srcdelay; uint32 destdelay; uint32 len; bool in_progress; uint64 start_usec; uint64 time_taken; uint32 d11_lpbk; int status; } dhd_dmaxfer_t; /** * msgbuf_ring : This object manages the host side ring that includes a DMA-able * buffer, the WR and RD indices, ring parameters such as max number of items * an length of each items, and other miscellaneous runtime state. * A msgbuf_ring may be used to represent a H2D or D2H common ring or a * H2D TxPost ring as specified in the PCIE FullDongle Spec. * Ring parameters are conveyed to the dongle, which maintains its own peer end * ring state. Depending on whether the DMA Indices feature is supported, the * host will update the WR/RD index in the DMA indices array in host memory or * directly in dongle memory. */ typedef struct msgbuf_ring { bool inited; uint16 idx; /* ring id */ uint16 rd; /* read index */ uint16 curr_rd; /* read index for debug */ uint16 wr; /* write index */ uint16 max_items; /* maximum number of items in ring */ uint16 item_len; /* length of each item in the ring */ sh_addr_t base_addr; /* LITTLE ENDIAN formatted: base address */ dhd_dma_buf_t dma_buf; /* DMA-able buffer: pa, va, len, dmah, secdma */ uint32 seqnum; /* next expected item's sequence number */ #ifdef TXP_FLUSH_NITEMS void *start_addr; /* # of messages on ring not yet announced to dongle */ uint16 pend_items_count; #endif /* TXP_FLUSH_NITEMS */ uint8 ring_type; uint16 hwa_db_type; /* hwa type non-zero for Data path rings */ uint8 n_completion_ids; bool create_pending; uint16 create_req_id; uint8 current_phase; uint16 compeltion_ring_ids[MAX_COMPLETION_RING_IDS_ASSOCIATED]; uchar name[RING_NAME_MAX_LENGTH]; uint32 ring_mem_allocated; void *ring_lock; } msgbuf_ring_t; #define DHD_RING_BGN_VA(ring) ((ring)->dma_buf.va) #define DHD_RING_END_VA(ring) \ ((uint8 *)(DHD_RING_BGN_VA((ring))) + \ (((ring)->max_items - 1) * (ring)->item_len)) /* This can be overwritten by module parameter defined in dhd_linux.c * or by dhd iovar h2d_max_txpost. */ int h2d_max_txpost = H2DRING_TXPOST_MAX_ITEM; /** DHD protocol handle. Is an opaque type to other DHD software layers. */ typedef struct dhd_prot { osl_t *osh; /* OSL handle */ uint16 rxbufpost_sz; uint16 rxbufpost; uint16 max_rxbufpost; uint16 max_eventbufpost; uint16 max_ioctlrespbufpost; uint16 max_tsbufpost; uint16 max_infobufpost; uint16 infobufpost; uint16 cur_event_bufs_posted; uint16 cur_ioctlresp_bufs_posted; uint16 cur_ts_bufs_posted; /* Flow control mechanism based on active transmits pending */ osl_atomic_t active_tx_count; /* increments/decrements on every packet tx/tx_status */ uint16 h2d_max_txpost; uint16 txp_threshold; /* optimization to write "n" tx items at a time to ring */ /* MsgBuf Ring info: has a dhd_dma_buf that is dynamically allocated */ msgbuf_ring_t h2dring_ctrl_subn; /* H2D ctrl message submission ring */ msgbuf_ring_t h2dring_rxp_subn; /* H2D RxBuf post ring */ msgbuf_ring_t d2hring_ctrl_cpln; /* D2H ctrl completion ring */ msgbuf_ring_t d2hring_tx_cpln; /* D2H Tx complete message ring */ msgbuf_ring_t d2hring_rx_cpln; /* D2H Rx complete message ring */ msgbuf_ring_t *h2dring_info_subn; /* H2D info submission ring */ msgbuf_ring_t *d2hring_info_cpln; /* D2H info completion ring */ msgbuf_ring_t *d2hring_edl; /* D2H Enhanced Debug Lane (EDL) ring */ msgbuf_ring_t *h2d_flowrings_pool; /* Pool of preallocated flowings */ dhd_dma_buf_t flowrings_dma_buf; /* Contiguous DMA buffer for flowrings */ uint16 h2d_rings_total; /* total H2D (common rings + flowrings) */ uint32 rx_dataoffset; dhd_mb_ring_t mb_ring_fn; /* called when dongle needs to be notified of new msg */ dhd_mb_ring_2_t mb_2_ring_fn; /* called when dongle needs to be notified of new msg */ /* ioctl related resources */ uint8 ioctl_state; int16 ioctl_status; /* status returned from dongle */ uint16 ioctl_resplen; dhd_ioctl_recieved_status_t ioctl_received; uint curr_ioctl_cmd; dhd_dma_buf_t retbuf; /* For holding ioctl response */ dhd_dma_buf_t ioctbuf; /* For holding ioctl request */ dhd_dma_buf_t d2h_dma_scratch_buf; /* For holding d2h scratch */ /* DMA-able arrays for holding WR and RD indices */ uint32 rw_index_sz; /* Size of a RD or WR index in dongle */ dhd_dma_buf_t h2d_dma_indx_wr_buf; /* Array of H2D WR indices */ dhd_dma_buf_t h2d_dma_indx_rd_buf; /* Array of H2D RD indices */ dhd_dma_buf_t d2h_dma_indx_wr_buf; /* Array of D2H WR indices */ dhd_dma_buf_t d2h_dma_indx_rd_buf; /* Array of D2H RD indices */ dhd_dma_buf_t h2d_ifrm_indx_wr_buf; /* Array of H2D WR indices for ifrm */ dhd_dma_buf_t host_bus_throughput_buf; /* bus throughput measure buffer */ dhd_dma_buf_t *flowring_buf; /* pool of flow ring buf */ uint32 flowring_num; d2h_sync_cb_t d2h_sync_cb; /* Sync on D2H DMA done: SEQNUM or XORCSUM */ #ifdef EWP_EDL d2h_edl_sync_cb_t d2h_edl_sync_cb; /* Sync on EDL D2H DMA done: SEQNUM or XORCSUM */ #endif /* EWP_EDL */ ulong d2h_sync_wait_max; /* max number of wait loops to receive one msg */ ulong d2h_sync_wait_tot; /* total wait loops */ dhd_dmaxfer_t dmaxfer; /* for test/DMA loopback */ uint16 ioctl_seq_no; uint16 data_seq_no; uint16 ioctl_trans_id; void *pktid_ctrl_map; /* a pktid maps to a packet and its metadata */ void *pktid_rx_map; /* pktid map for rx path */ void *pktid_tx_map; /* pktid map for tx path */ bool metadata_dbg; void *pktid_map_handle_ioctl; #ifdef DHD_MAP_PKTID_LOGGING void *pktid_dma_map; /* pktid map for DMA MAP */ void *pktid_dma_unmap; /* pktid map for DMA UNMAP */ #endif /* DHD_MAP_PKTID_LOGGING */ uint32 pktid_depleted_cnt; /* pktid depleted count */ /* netif tx queue stop count */ uint8 pktid_txq_stop_cnt; /* netif tx queue start count */ uint8 pktid_txq_start_cnt; uint64 ioctl_fillup_time; /* timestamp for ioctl fillup */ uint64 ioctl_ack_time; /* timestamp for ioctl ack */ uint64 ioctl_cmplt_time; /* timestamp for ioctl completion */ /* Applications/utilities can read tx and rx metadata using IOVARs */ uint16 rx_metadata_offset; uint16 tx_metadata_offset; #if defined(DHD_D2H_SOFT_DOORBELL_SUPPORT) /* Host's soft doorbell configuration */ bcmpcie_soft_doorbell_t soft_doorbell[BCMPCIE_D2H_COMMON_MSGRINGS]; #endif /* DHD_D2H_SOFT_DOORBELL_SUPPORT */ /* Work Queues to be used by the producer and the consumer, and threshold * when the WRITE index must be synced to consumer's workq */ #if defined(DHD_LB_TXC) uint32 tx_compl_prod_sync ____cacheline_aligned; bcm_workq_t tx_compl_prod, tx_compl_cons; #endif /* DHD_LB_TXC */ #if defined(DHD_LB_RXC) uint32 rx_compl_prod_sync ____cacheline_aligned; bcm_workq_t rx_compl_prod, rx_compl_cons; #endif /* DHD_LB_RXC */ dhd_dma_buf_t fw_trap_buf; /* firmware trap buffer */ uint32 host_ipc_version; /* Host sypported IPC rev */ uint32 device_ipc_version; /* FW supported IPC rev */ uint32 active_ipc_version; /* Host advertised IPC rev */ dhd_dma_buf_t hostts_req_buf; /* For holding host timestamp request buf */ bool hostts_req_buf_inuse; bool rx_ts_log_enabled; bool tx_ts_log_enabled; bool no_retry; bool no_aggr; bool fixed_rate; dhd_dma_buf_t host_scb_buf; /* scb host offload buffer */ #ifdef DHD_HP2P msgbuf_ring_t *d2hring_hp2p_txcpl; /* D2H HPP Tx completion ring */ msgbuf_ring_t *d2hring_hp2p_rxcpl; /* D2H HPP Rx completion ring */ #endif /* DHD_HP2P */ bool no_tx_resource; } dhd_prot_t; #ifdef DHD_EWPR_VER2 #define HANG_INFO_BASE64_BUFFER_SIZE 640 #endif // endif #ifdef DHD_DUMP_PCIE_RINGS static int dhd_ring_write(dhd_pub_t *dhd, msgbuf_ring_t *ring, void *file, const void *user_buf, unsigned long *file_posn); #ifdef EWP_EDL static int dhd_edl_ring_hdr_write(dhd_pub_t *dhd, msgbuf_ring_t *ring, void *file, const void *user_buf, unsigned long *file_posn); #endif /* EWP_EDL */ #endif /* DHD_DUMP_PCIE_RINGS */ extern bool dhd_timesync_delay_post_bufs(dhd_pub_t *dhdp); extern void dhd_schedule_dmaxfer_free(dhd_pub_t* dhdp, dmaxref_mem_map_t *dmmap); /* Convert a dmaaddr_t to a base_addr with htol operations */ static INLINE void dhd_base_addr_htolpa(sh_addr_t *base_addr, dmaaddr_t pa); /* APIs for managing a DMA-able buffer */ static int dhd_dma_buf_audit(dhd_pub_t *dhd, dhd_dma_buf_t *dma_buf); static void dhd_dma_buf_reset(dhd_pub_t *dhd, dhd_dma_buf_t *dma_buf); /* msgbuf ring management */ static int dhd_prot_ring_attach(dhd_pub_t *dhd, msgbuf_ring_t *ring, const char *name, uint16 max_items, uint16 len_item, uint16 ringid); static void dhd_prot_ring_init(dhd_pub_t *dhd, msgbuf_ring_t *ring); static void dhd_prot_ring_reset(dhd_pub_t *dhd, msgbuf_ring_t *ring); static void dhd_prot_ring_detach(dhd_pub_t *dhd, msgbuf_ring_t *ring); static void dhd_prot_process_fw_timestamp(dhd_pub_t *dhd, void* buf); /* Pool of pre-allocated msgbuf_ring_t with DMA-able buffers for Flowrings */ static int dhd_prot_flowrings_pool_attach(dhd_pub_t *dhd); static void dhd_prot_flowrings_pool_reset(dhd_pub_t *dhd); static void dhd_prot_flowrings_pool_detach(dhd_pub_t *dhd); /* Fetch and Release a flowring msgbuf_ring from flowring pool */ static msgbuf_ring_t *dhd_prot_flowrings_pool_fetch(dhd_pub_t *dhd, uint16 flowid); /* see also dhd_prot_flowrings_pool_release() in dhd_prot.h */ /* Producer: Allocate space in a msgbuf ring */ static void* dhd_prot_alloc_ring_space(dhd_pub_t *dhd, msgbuf_ring_t *ring, uint16 nitems, uint16 *alloced, bool exactly_nitems); static void* dhd_prot_get_ring_space(msgbuf_ring_t *ring, uint16 nitems, uint16 *alloced, bool exactly_nitems); /* Consumer: Determine the location where the next message may be consumed */ static uint8* dhd_prot_get_read_addr(dhd_pub_t *dhd, msgbuf_ring_t *ring, uint32 *available_len); /* Producer (WR index update) or Consumer (RD index update) indication */ static void dhd_prot_ring_write_complete(dhd_pub_t *dhd, msgbuf_ring_t *ring, void *p, uint16 len); static void dhd_prot_upd_read_idx(dhd_pub_t *dhd, msgbuf_ring_t *ring); static INLINE int dhd_prot_dma_indx_alloc(dhd_pub_t *dhd, uint8 type, dhd_dma_buf_t *dma_buf, uint32 bufsz); /* Set/Get a RD or WR index in the array of indices */ /* See also: dhd_prot_dma_indx_init() */ void dhd_prot_dma_indx_set(dhd_pub_t *dhd, uint16 new_index, uint8 type, uint16 ringid); static uint16 dhd_prot_dma_indx_get(dhd_pub_t *dhd, uint8 type, uint16 ringid); /* Locate a packet given a pktid */ static INLINE void *dhd_prot_packet_get(dhd_pub_t *dhd, uint32 pktid, uint8 pkttype, bool free_pktid); /* Locate a packet given a PktId and free it. */ static INLINE void dhd_prot_packet_free(dhd_pub_t *dhd, void *pkt, uint8 pkttype, bool send); static int dhd_msgbuf_query_ioctl(dhd_pub_t *dhd, int ifidx, uint cmd, void *buf, uint len, uint8 action); static int dhd_msgbuf_set_ioctl(dhd_pub_t *dhd, int ifidx, uint cmd, void *buf, uint len, uint8 action); static int dhd_msgbuf_wait_ioctl_cmplt(dhd_pub_t *dhd, uint32 len, void *buf); static int dhd_fillup_ioct_reqst(dhd_pub_t *dhd, uint16 len, uint cmd, void *buf, int ifidx); /* Post buffers for Rx, control ioctl response and events */ static uint16 dhd_msgbuf_rxbuf_post_ctrlpath(dhd_pub_t *dhd, uint8 msgid, uint32 max_to_post); static void dhd_msgbuf_rxbuf_post_ioctlresp_bufs(dhd_pub_t *pub); static void dhd_msgbuf_rxbuf_post_event_bufs(dhd_pub_t *pub); static void dhd_msgbuf_rxbuf_post(dhd_pub_t *dhd, bool use_rsv_pktid); static int dhd_prot_rxbuf_post(dhd_pub_t *dhd, uint16 count, bool use_rsv_pktid); static int dhd_msgbuf_rxbuf_post_ts_bufs(dhd_pub_t *pub); static void dhd_prot_return_rxbuf(dhd_pub_t *dhd, uint32 pktid, uint32 rxcnt); /* D2H Message handling */ static int dhd_prot_process_msgtype(dhd_pub_t *dhd, msgbuf_ring_t *ring, uint8 *buf, uint32 len); /* D2H Message handlers */ static void dhd_prot_noop(dhd_pub_t *dhd, void *msg); static void dhd_prot_txstatus_process(dhd_pub_t *dhd, void *msg); static void dhd_prot_ioctcmplt_process(dhd_pub_t *dhd, void *msg); static void dhd_prot_ioctack_process(dhd_pub_t *dhd, void *msg); static void dhd_prot_ringstatus_process(dhd_pub_t *dhd, void *msg); static void dhd_prot_genstatus_process(dhd_pub_t *dhd, void *msg); static void dhd_prot_event_process(dhd_pub_t *dhd, void *msg); /* Loopback test with dongle */ static void dmaxfer_free_dmaaddr(dhd_pub_t *dhd, dhd_dmaxfer_t *dma); static int dmaxfer_prepare_dmaaddr(dhd_pub_t *dhd, uint len, uint srcdelay, uint destdelay, dhd_dmaxfer_t *dma); static void dhd_msgbuf_dmaxfer_process(dhd_pub_t *dhd, void *msg); /* Flowring management communication with dongle */ static void dhd_prot_flow_ring_create_response_process(dhd_pub_t *dhd, void *msg); static void dhd_prot_flow_ring_delete_response_process(dhd_pub_t *dhd, void *msg); static void dhd_prot_flow_ring_flush_response_process(dhd_pub_t *dhd, void *msg); static void dhd_prot_process_flow_ring_resume_response(dhd_pub_t *dhd, void* msg); static void dhd_prot_process_flow_ring_suspend_response(dhd_pub_t *dhd, void* msg); /* Monitor Mode */ #ifdef WL_MONITOR extern bool dhd_monitor_enabled(dhd_pub_t *dhd, int ifidx); extern void dhd_rx_mon_pkt(dhd_pub_t *dhdp, host_rxbuf_cmpl_t* msg, void *pkt, int ifidx); #endif /* WL_MONITOR */ /* Configure a soft doorbell per D2H ring */ static void dhd_msgbuf_ring_config_d2h_soft_doorbell(dhd_pub_t *dhd); static void dhd_prot_process_d2h_ring_config_complete(dhd_pub_t *dhd, void *msg); static void dhd_prot_process_d2h_ring_create_complete(dhd_pub_t *dhd, void *buf); static void dhd_prot_process_h2d_ring_create_complete(dhd_pub_t *dhd, void *buf); static void dhd_prot_process_infobuf_complete(dhd_pub_t *dhd, void* buf); static void dhd_prot_process_d2h_mb_data(dhd_pub_t *dhd, void* buf); static void dhd_prot_detach_info_rings(dhd_pub_t *dhd); #ifdef DHD_HP2P static void dhd_prot_detach_hp2p_rings(dhd_pub_t *dhd); #endif /* DHD_HP2P */ #ifdef EWP_EDL static void dhd_prot_detach_edl_rings(dhd_pub_t *dhd); #endif // endif static void dhd_prot_process_d2h_host_ts_complete(dhd_pub_t *dhd, void* buf); static void dhd_prot_process_snapshot_complete(dhd_pub_t *dhd, void *buf); #ifdef DHD_HP2P static void dhd_update_hp2p_rxstats(dhd_pub_t *dhd, host_rxbuf_cmpl_t *rxstatus); static void dhd_update_hp2p_txstats(dhd_pub_t *dhd, host_txbuf_cmpl_t *txstatus); static void dhd_calc_hp2p_burst(dhd_pub_t *dhd, msgbuf_ring_t *ring, uint16 flowid); static void dhd_update_hp2p_txdesc(dhd_pub_t *dhd, host_txbuf_post_t *txdesc); #endif // endif typedef void (*dhd_msgbuf_func_t)(dhd_pub_t *dhd, void *msg); /** callback functions for messages generated by the dongle */ #define MSG_TYPE_INVALID 0 static dhd_msgbuf_func_t table_lookup[DHD_PROT_FUNCS] = { dhd_prot_noop, /* 0 is MSG_TYPE_INVALID */ dhd_prot_genstatus_process, /* MSG_TYPE_GEN_STATUS */ dhd_prot_ringstatus_process, /* MSG_TYPE_RING_STATUS */ NULL, dhd_prot_flow_ring_create_response_process, /* MSG_TYPE_FLOW_RING_CREATE_CMPLT */ NULL, dhd_prot_flow_ring_delete_response_process, /* MSG_TYPE_FLOW_RING_DELETE_CMPLT */ NULL, dhd_prot_flow_ring_flush_response_process, /* MSG_TYPE_FLOW_RING_FLUSH_CMPLT */ NULL, dhd_prot_ioctack_process, /* MSG_TYPE_IOCTLPTR_REQ_ACK */ NULL, dhd_prot_ioctcmplt_process, /* MSG_TYPE_IOCTL_CMPLT */ NULL, dhd_prot_event_process, /* MSG_TYPE_WL_EVENT */ NULL, dhd_prot_txstatus_process, /* MSG_TYPE_TX_STATUS */ NULL, NULL, /* MSG_TYPE_RX_CMPLT use dedicated handler */ NULL, dhd_msgbuf_dmaxfer_process, /* MSG_TYPE_LPBK_DMAXFER_CMPLT */ NULL, /* MSG_TYPE_FLOW_RING_RESUME */ dhd_prot_process_flow_ring_resume_response, /* MSG_TYPE_FLOW_RING_RESUME_CMPLT */ NULL, /* MSG_TYPE_FLOW_RING_SUSPEND */ dhd_prot_process_flow_ring_suspend_response, /* MSG_TYPE_FLOW_RING_SUSPEND_CMPLT */ NULL, /* MSG_TYPE_INFO_BUF_POST */ dhd_prot_process_infobuf_complete, /* MSG_TYPE_INFO_BUF_CMPLT */ NULL, /* MSG_TYPE_H2D_RING_CREATE */ NULL, /* MSG_TYPE_D2H_RING_CREATE */ dhd_prot_process_h2d_ring_create_complete, /* MSG_TYPE_H2D_RING_CREATE_CMPLT */ dhd_prot_process_d2h_ring_create_complete, /* MSG_TYPE_D2H_RING_CREATE_CMPLT */ NULL, /* MSG_TYPE_H2D_RING_CONFIG */ NULL, /* MSG_TYPE_D2H_RING_CONFIG */ NULL, /* MSG_TYPE_H2D_RING_CONFIG_CMPLT */ dhd_prot_process_d2h_ring_config_complete, /* MSG_TYPE_D2H_RING_CONFIG_CMPLT */ NULL, /* MSG_TYPE_H2D_MAILBOX_DATA */ dhd_prot_process_d2h_mb_data, /* MSG_TYPE_D2H_MAILBOX_DATA */ NULL, /* MSG_TYPE_TIMSTAMP_BUFPOST */ NULL, /* MSG_TYPE_HOSTTIMSTAMP */ dhd_prot_process_d2h_host_ts_complete, /* MSG_TYPE_HOSTTIMSTAMP_CMPLT */ dhd_prot_process_fw_timestamp, /* MSG_TYPE_FIRMWARE_TIMESTAMP */ NULL, /* MSG_TYPE_SNAPSHOT_UPLOAD */ dhd_prot_process_snapshot_complete, /* MSG_TYPE_SNAPSHOT_CMPLT */ }; #ifdef DHD_RX_CHAINING #define PKT_CTF_CHAINABLE(dhd, ifidx, evh, prio, h_sa, h_da, h_prio) \ (dhd_wet_chainable(dhd) && \ dhd_rx_pkt_chainable((dhd), (ifidx)) && \ !ETHER_ISNULLDEST(((struct ether_header *)(evh))->ether_dhost) && \ !ETHER_ISMULTI(((struct ether_header *)(evh))->ether_dhost) && \ !eacmp((h_da), ((struct ether_header *)(evh))->ether_dhost) && \ !eacmp((h_sa), ((struct ether_header *)(evh))->ether_shost) && \ ((h_prio) == (prio)) && (dhd_ctf_hotbrc_check((dhd), (evh), (ifidx))) && \ ((((struct ether_header *)(evh))->ether_type == HTON16(ETHER_TYPE_IP)) || \ (((struct ether_header *)(evh))->ether_type == HTON16(ETHER_TYPE_IPV6)))) static INLINE void BCMFASTPATH dhd_rxchain_reset(rxchain_info_t *rxchain); static void BCMFASTPATH dhd_rxchain_frame(dhd_pub_t *dhd, void *pkt, uint ifidx); static void BCMFASTPATH dhd_rxchain_commit(dhd_pub_t *dhd); #define DHD_PKT_CTF_MAX_CHAIN_LEN 64 #endif /* DHD_RX_CHAINING */ #define DHD_LPBKDTDUMP_ON() (dhd_msg_level & DHD_LPBKDTDUMP_VAL) static void dhd_prot_h2d_sync_init(dhd_pub_t *dhd); bool dhd_prot_is_cmpl_ring_empty(dhd_pub_t *dhd, void *prot_info) { msgbuf_ring_t *flow_ring = (msgbuf_ring_t *)prot_info; uint16 rd, wr; bool ret; if (dhd->dma_d2h_ring_upd_support) { wr = flow_ring->wr; } else { dhd_bus_cmn_readshared(dhd->bus, &wr, RING_WR_UPD, flow_ring->idx); } if (dhd->dma_h2d_ring_upd_support) { rd = flow_ring->rd; } else { dhd_bus_cmn_readshared(dhd->bus, &rd, RING_RD_UPD, flow_ring->idx); } ret = (wr == rd) ? TRUE : FALSE; return ret; } void dhd_prot_dump_ring_ptrs(void *prot_info) { msgbuf_ring_t *ring = (msgbuf_ring_t *)prot_info; DHD_ERROR(("%s curr_rd: %d rd: %d wr: %d \n", __FUNCTION__, ring->curr_rd, ring->rd, ring->wr)); } uint16 dhd_prot_get_h2d_max_txpost(dhd_pub_t *dhd) { return (uint16)h2d_max_txpost; } void dhd_prot_set_h2d_max_txpost(dhd_pub_t *dhd, uint16 max_txpost) { h2d_max_txpost = max_txpost; } /** * D2H DMA to completion callback handlers. Based on the mode advertised by the * dongle through the PCIE shared region, the appropriate callback will be * registered in the proto layer to be invoked prior to precessing any message * from a D2H DMA ring. If the dongle uses a read barrier or another mode that * does not require host participation, then a noop callback handler will be * bound that simply returns the msg_type. */ static void dhd_prot_d2h_sync_livelock(dhd_pub_t *dhd, uint32 msg_seqnum, msgbuf_ring_t *ring, uint32 tries, volatile uchar *msg, int msglen); static uint8 dhd_prot_d2h_sync_seqnum(dhd_pub_t *dhd, msgbuf_ring_t *ring, volatile cmn_msg_hdr_t *msg, int msglen); static uint8 dhd_prot_d2h_sync_xorcsum(dhd_pub_t *dhd, msgbuf_ring_t *ring, volatile cmn_msg_hdr_t *msg, int msglen); static uint8 dhd_prot_d2h_sync_none(dhd_pub_t *dhd, msgbuf_ring_t *ring, volatile cmn_msg_hdr_t *msg, int msglen); static void dhd_prot_d2h_sync_init(dhd_pub_t *dhd); static int dhd_send_d2h_ringcreate(dhd_pub_t *dhd, msgbuf_ring_t *ring_to_create, uint16 ring_type, uint32 id); static int dhd_send_h2d_ringcreate(dhd_pub_t *dhd, msgbuf_ring_t *ring_to_create, uint8 type, uint32 id); /** * dhd_prot_d2h_sync_livelock - when the host determines that a DMA transfer has * not completed, a livelock condition occurs. Host will avert this livelock by * dropping this message and moving to the next. This dropped message can lead * to a packet leak, or even something disastrous in the case the dropped * message happens to be a control response. * Here we will log this condition. One may choose to reboot the dongle. * */ static void dhd_prot_d2h_sync_livelock(dhd_pub_t *dhd, uint32 msg_seqnum, msgbuf_ring_t *ring, uint32 tries, volatile uchar *msg, int msglen) { uint32 ring_seqnum = ring->seqnum; if (dhd_query_bus_erros(dhd)) { return; } DHD_ERROR(( "LIVELOCK DHD<%p> ring<%s> msg_seqnum<%u> ring_seqnum<%u:%u> tries<%u> max<%lu>" " tot<%lu> dma_buf va<%p> msg<%p> curr_rd<%d> rd<%d> wr<%d>\n", dhd, ring->name, msg_seqnum, ring_seqnum, ring_seqnum% D2H_EPOCH_MODULO, tries, dhd->prot->d2h_sync_wait_max, dhd->prot->d2h_sync_wait_tot, ring->dma_buf.va, msg, ring->curr_rd, ring->rd, ring->wr)); dhd_prhex("D2H MsgBuf Failure", msg, msglen, DHD_ERROR_VAL); /* Try to resume if already suspended or suspend in progress */ /* Skip if still in suspended or suspend in progress */ if (DHD_BUS_CHECK_SUSPEND_OR_ANY_SUSPEND_IN_PROGRESS(dhd)) { DHD_ERROR(("%s: bus is in suspend(%d) or suspending(0x%x) state, so skip\n", __FUNCTION__, dhd->busstate, dhd->dhd_bus_busy_state)); goto exit; } dhd_bus_dump_console_buffer(dhd->bus); dhd_prot_debug_info_print(dhd); #ifdef DHD_FW_COREDUMP if (dhd->memdump_enabled) { /* collect core dump */ dhd->memdump_type = DUMP_TYPE_BY_LIVELOCK; dhd_bus_mem_dump(dhd); } #endif /* DHD_FW_COREDUMP */ exit: dhd_schedule_reset(dhd); dhd->livelock_occured = TRUE; } /** * dhd_prot_d2h_sync_seqnum - Sync on a D2H DMA completion using the SEQNUM * mode. Sequence number is always in the last word of a message. */ static uint8 BCMFASTPATH dhd_prot_d2h_sync_seqnum(dhd_pub_t *dhd, msgbuf_ring_t *ring, volatile cmn_msg_hdr_t *msg, int msglen) { uint32 tries; uint32 ring_seqnum = ring->seqnum % D2H_EPOCH_MODULO; int num_words = msglen / sizeof(uint32); /* num of 32bit words */ volatile uint32 *marker = (volatile uint32 *)msg + (num_words - 1); /* last word */ dhd_prot_t *prot = dhd->prot; uint32 msg_seqnum; uint32 step = 0; uint32 delay = PCIE_D2H_SYNC_DELAY; uint32 total_tries = 0; ASSERT(msglen == ring->item_len); BCM_REFERENCE(delay); /* * For retries we have to make some sort of stepper algorithm. * We see that every time when the Dongle comes out of the D3 * Cold state, the first D2H mem2mem DMA takes more time to * complete, leading to livelock issues. * * Case 1 - Apart from Host CPU some other bus master is * accessing the DDR port, probably page close to the ring * so, PCIE does not get a change to update the memory. * Solution - Increase the number of tries. * * Case 2 - The 50usec delay given by the Host CPU is not * sufficient for the PCIe RC to start its work. * In this case the breathing time of 50usec given by * the Host CPU is not sufficient. * Solution: Increase the delay in a stepper fashion. * This is done to ensure that there are no * unwanted extra delay introdcued in normal conditions. */ for (step = 1; step <= PCIE_D2H_SYNC_NUM_OF_STEPS; step++) { for (tries = 0; tries < PCIE_D2H_SYNC_WAIT_TRIES; tries++) { msg_seqnum = *marker; if (ltoh32(msg_seqnum) == ring_seqnum) { /* dma upto last word done */ ring->seqnum++; /* next expected sequence number */ /* Check for LIVELOCK induce flag, which is set by firing * dhd iovar to induce LIVELOCK error. If flag is set, * MSG_TYPE_INVALID is returned, which results in to LIVELOCK error. */ if (dhd->dhd_induce_error != DHD_INDUCE_LIVELOCK) { goto dma_completed; } } total_tries = (uint32)(((step-1) * PCIE_D2H_SYNC_WAIT_TRIES) + tries); if (total_tries > prot->d2h_sync_wait_max) prot->d2h_sync_wait_max = total_tries; OSL_CACHE_INV(msg, msglen); /* invalidate and try again */ OSL_CPU_RELAX(); /* CPU relax for msg_seqnum value to update */ OSL_DELAY(delay * step); /* Add stepper delay */ } /* for PCIE_D2H_SYNC_WAIT_TRIES */ } /* for PCIE_D2H_SYNC_NUM_OF_STEPS */ dhd_prot_d2h_sync_livelock(dhd, msg_seqnum, ring, total_tries, (volatile uchar *) msg, msglen); ring->seqnum++; /* skip this message ... leak of a pktid */ return MSG_TYPE_INVALID; /* invalid msg_type 0 -> noop callback */ dma_completed: prot->d2h_sync_wait_tot += tries; return msg->msg_type; } /** * dhd_prot_d2h_sync_xorcsum - Sync on a D2H DMA completion using the XORCSUM * mode. The xorcsum is placed in the last word of a message. Dongle will also * place a seqnum in the epoch field of the cmn_msg_hdr. */ static uint8 BCMFASTPATH dhd_prot_d2h_sync_xorcsum(dhd_pub_t *dhd, msgbuf_ring_t *ring, volatile cmn_msg_hdr_t *msg, int msglen) { uint32 tries; uint32 prot_checksum = 0; /* computed checksum */ int num_words = msglen / sizeof(uint32); /* num of 32bit words */ uint8 ring_seqnum = ring->seqnum % D2H_EPOCH_MODULO; dhd_prot_t *prot = dhd->prot; uint32 step = 0; uint32 delay = PCIE_D2H_SYNC_DELAY; uint32 total_tries = 0; ASSERT(msglen == ring->item_len); BCM_REFERENCE(delay); /* * For retries we have to make some sort of stepper algorithm. * We see that every time when the Dongle comes out of the D3 * Cold state, the first D2H mem2mem DMA takes more time to * complete, leading to livelock issues. * * Case 1 - Apart from Host CPU some other bus master is * accessing the DDR port, probably page close to the ring * so, PCIE does not get a change to update the memory. * Solution - Increase the number of tries. * * Case 2 - The 50usec delay given by the Host CPU is not * sufficient for the PCIe RC to start its work. * In this case the breathing time of 50usec given by * the Host CPU is not sufficient. * Solution: Increase the delay in a stepper fashion. * This is done to ensure that there are no * unwanted extra delay introdcued in normal conditions. */ for (step = 1; step <= PCIE_D2H_SYNC_NUM_OF_STEPS; step++) { for (tries = 0; tries < PCIE_D2H_SYNC_WAIT_TRIES; tries++) { /* First verify if the seqnumber has been update, * if yes, then only check xorcsum. * Once seqnum and xorcsum is proper that means * complete message has arrived. */ if (msg->epoch == ring_seqnum) { prot_checksum = bcm_compute_xor32((volatile uint32 *)msg, num_words); if (prot_checksum == 0U) { /* checksum is OK */ ring->seqnum++; /* next expected sequence number */ /* Check for LIVELOCK induce flag, which is set by firing * dhd iovar to induce LIVELOCK error. If flag is set, * MSG_TYPE_INVALID is returned, which results in to * LIVELOCK error. */ if (dhd->dhd_induce_error != DHD_INDUCE_LIVELOCK) { goto dma_completed; } } } total_tries = ((step-1) * PCIE_D2H_SYNC_WAIT_TRIES) + tries; if (total_tries > prot->d2h_sync_wait_max) prot->d2h_sync_wait_max = total_tries; OSL_CACHE_INV(msg, msglen); /* invalidate and try again */ OSL_CPU_RELAX(); /* CPU relax for msg_seqnum value to update */ OSL_DELAY(delay * step); /* Add stepper delay */ } /* for PCIE_D2H_SYNC_WAIT_TRIES */ } /* for PCIE_D2H_SYNC_NUM_OF_STEPS */ DHD_ERROR(("%s: prot_checksum = 0x%x\n", __FUNCTION__, prot_checksum)); dhd_prot_d2h_sync_livelock(dhd, msg->epoch, ring, total_tries, (volatile uchar *) msg, msglen); ring->seqnum++; /* skip this message ... leak of a pktid */ return MSG_TYPE_INVALID; /* invalid msg_type 0 -> noop callback */ dma_completed: prot->d2h_sync_wait_tot += tries; return msg->msg_type; } /** * dhd_prot_d2h_sync_none - Dongle ensure that the DMA will complete and host * need to try to sync. This noop sync handler will be bound when the dongle * advertises that neither the SEQNUM nor XORCSUM mode of DMA sync is required. */ static uint8 BCMFASTPATH dhd_prot_d2h_sync_none(dhd_pub_t *dhd, msgbuf_ring_t *ring, volatile cmn_msg_hdr_t *msg, int msglen) { /* Check for LIVELOCK induce flag, which is set by firing * dhd iovar to induce LIVELOCK error. If flag is set, * MSG_TYPE_INVALID is returned, which results in to LIVELOCK error. */ if (dhd->dhd_induce_error == DHD_INDUCE_LIVELOCK) { DHD_ERROR(("%s: Inducing livelock\n", __FUNCTION__)); return MSG_TYPE_INVALID; } else { return msg->msg_type; } } #ifdef EWP_EDL /** * dhd_prot_d2h_sync_edl - Sync on a D2H DMA completion by validating the cmn_msg_hdr_t * header values at both the beginning and end of the payload. * The cmn_msg_hdr_t is placed at the start and end of the payload * in each work item in the EDL ring. * Dongle will place a seqnum inside the cmn_msg_hdr_t 'epoch' field * and the length of the payload in the 'request_id' field. * Structure of each work item in the EDL ring: * | cmn_msg_hdr_t | payload (var len) | cmn_msg_hdr_t | * NOTE: - it was felt that calculating xorcsum for the entire payload (max length of 1648 bytes) is * too costly on the dongle side and might take up too many ARM cycles, * hence the xorcsum sync method is not being used for EDL ring. */ static int BCMFASTPATH(dhd_prot_d2h_sync_edl)(dhd_pub_t *dhd, msgbuf_ring_t *ring, volatile cmn_msg_hdr_t *msg) { uint32 tries; int msglen = 0, len = 0; uint32 ring_seqnum = ring->seqnum % D2H_EPOCH_MODULO; dhd_prot_t *prot = dhd->prot; uint32 step = 0; uint32 delay = PCIE_D2H_SYNC_DELAY; uint32 total_tries = 0; volatile cmn_msg_hdr_t *trailer = NULL; volatile uint8 *buf = NULL; bool valid_msg = FALSE; BCM_REFERENCE(delay); /* * For retries we have to make some sort of stepper algorithm. * We see that every time when the Dongle comes out of the D3 * Cold state, the first D2H mem2mem DMA takes more time to * complete, leading to livelock issues. * * Case 1 - Apart from Host CPU some other bus master is * accessing the DDR port, probably page close to the ring * so, PCIE does not get a change to update the memory. * Solution - Increase the number of tries. * * Case 2 - The 50usec delay given by the Host CPU is not * sufficient for the PCIe RC to start its work. * In this case the breathing time of 50usec given by * the Host CPU is not sufficient. * Solution: Increase the delay in a stepper fashion. * This is done to ensure that there are no * unwanted extra delay introdcued in normal conditions. */ for (step = 1; step <= PCIE_D2H_SYNC_NUM_OF_STEPS; step++) { for (tries = 0; tries < PCIE_D2H_SYNC_WAIT_TRIES; tries++) { /* First verify if the seqnumber has been updated, * if yes, only then validate the header and trailer. * Once seqnum, header and trailer have been validated, it means * that the complete message has arrived. */ valid_msg = FALSE; if (msg->epoch == ring_seqnum && msg->msg_type == MSG_TYPE_INFO_PYLD && msg->request_id > 0 && msg->request_id <= ring->item_len) { /* proceed to check trailer only if header is valid */ buf = (volatile uint8 *)msg; msglen = sizeof(cmn_msg_hdr_t) + msg->request_id; buf += msglen; if (msglen + sizeof(cmn_msg_hdr_t) <= ring->item_len) { trailer = (volatile cmn_msg_hdr_t *)buf; valid_msg = (trailer->epoch == ring_seqnum) && (trailer->msg_type == msg->msg_type) && (trailer->request_id == msg->request_id); if (!valid_msg) { DHD_TRACE(("%s:invalid trailer! seqnum=%u;reqid=%u" " expected, seqnum=%u; reqid=%u. Retrying... \n", __FUNCTION__, trailer->epoch, trailer->request_id, msg->epoch, msg->request_id)); } } else { DHD_TRACE(("%s: invalid payload length (%u)! Retrying.. \n", __FUNCTION__, msg->request_id)); } if (valid_msg) { /* data is OK */ ring->seqnum++; /* next expected sequence number */ if (dhd->dhd_induce_error != DHD_INDUCE_LIVELOCK) { goto dma_completed; } } } else { DHD_TRACE(("%s: wrong hdr, seqnum expected %u, got %u." " msg_type=0x%x, request_id=%u." " Retrying...\n", __FUNCTION__, ring_seqnum, msg->epoch, msg->msg_type, msg->request_id)); } total_tries = ((step-1) * PCIE_D2H_SYNC_WAIT_TRIES) + tries; if (total_tries > prot->d2h_sync_wait_max) prot->d2h_sync_wait_max = total_tries; OSL_CACHE_INV(msg, msglen); /* invalidate and try again */ OSL_CPU_RELAX(); /* CPU relax for msg_seqnum value to update */ OSL_DELAY(delay * step); /* Add stepper delay */ } /* for PCIE_D2H_SYNC_WAIT_TRIES */ } /* for PCIE_D2H_SYNC_NUM_OF_STEPS */ DHD_ERROR(("%s: EDL header check fails !\n", __FUNCTION__)); DHD_ERROR(("%s: header: seqnum=%u; expected-seqnum=%u" " msgtype=0x%x; expected-msgtype=0x%x" " length=%u; expected-max-length=%u", __FUNCTION__, msg->epoch, ring_seqnum, msg->msg_type, MSG_TYPE_INFO_PYLD, msg->request_id, ring->item_len)); dhd_prhex("msg header bytes: ", (volatile uchar *)msg, sizeof(*msg), DHD_ERROR_VAL); if (trailer && msglen > 0 && (msglen + sizeof(cmn_msg_hdr_t)) <= ring->item_len) { DHD_ERROR(("%s: trailer: seqnum=%u; expected-seqnum=%u" " msgtype=0x%x; expected-msgtype=0x%x" " length=%u; expected-length=%u", __FUNCTION__, trailer->epoch, ring_seqnum, trailer->msg_type, MSG_TYPE_INFO_PYLD, trailer->request_id, msg->request_id)); dhd_prhex("msg trailer bytes: ", (volatile uchar *)trailer, sizeof(*trailer), DHD_ERROR_VAL); } if ((msglen + sizeof(cmn_msg_hdr_t)) <= ring->item_len) len = msglen + sizeof(cmn_msg_hdr_t); else len = ring->item_len; dhd_prot_d2h_sync_livelock(dhd, msg->epoch, ring, total_tries, (volatile uchar *) msg, len); ring->seqnum++; /* skip this message */ return BCME_ERROR; /* invalid msg_type 0 -> noop callback */ dma_completed: DHD_TRACE(("%s: EDL header check pass, seqnum=%u; reqid=%u\n", __FUNCTION__, msg->epoch, msg->request_id)); prot->d2h_sync_wait_tot += tries; return BCME_OK; } /** * dhd_prot_d2h_sync_edl_none - Dongle ensure that the DMA will complete and host * need to try to sync. This noop sync handler will be bound when the dongle * advertises that neither the SEQNUM nor XORCSUM mode of DMA sync is required. */ static int BCMFASTPATH dhd_prot_d2h_sync_edl_none(dhd_pub_t *dhd, msgbuf_ring_t *ring, volatile cmn_msg_hdr_t *msg) { /* Check for LIVELOCK induce flag, which is set by firing * dhd iovar to induce LIVELOCK error. If flag is set, * MSG_TYPE_INVALID is returned, which results in to LIVELOCK error. */ if (dhd->dhd_induce_error == DHD_INDUCE_LIVELOCK) { DHD_ERROR(("%s: Inducing livelock\n", __FUNCTION__)); return BCME_ERROR; } else { if (msg->msg_type == MSG_TYPE_INFO_PYLD) return BCME_OK; else return msg->msg_type; } } #endif /* EWP_EDL */ INLINE void dhd_wakeup_ioctl_event(dhd_pub_t *dhd, dhd_ioctl_recieved_status_t reason) { /* To synchronize with the previous memory operations call wmb() */ OSL_SMP_WMB(); dhd->prot->ioctl_received = reason; /* Call another wmb() to make sure before waking up the other event value gets updated */ OSL_SMP_WMB(); dhd_os_ioctl_resp_wake(dhd); } /** * dhd_prot_d2h_sync_init - Setup the host side DMA sync mode based on what * dongle advertizes. */ static void dhd_prot_d2h_sync_init(dhd_pub_t *dhd) { dhd_prot_t *prot = dhd->prot; prot->d2h_sync_wait_max = 0UL; prot->d2h_sync_wait_tot = 0UL; prot->d2hring_ctrl_cpln.seqnum = D2H_EPOCH_INIT_VAL; prot->d2hring_ctrl_cpln.current_phase = BCMPCIE_CMNHDR_PHASE_BIT_INIT; prot->d2hring_tx_cpln.seqnum = D2H_EPOCH_INIT_VAL; prot->d2hring_tx_cpln.current_phase = BCMPCIE_CMNHDR_PHASE_BIT_INIT; prot->d2hring_rx_cpln.seqnum = D2H_EPOCH_INIT_VAL; prot->d2hring_rx_cpln.current_phase = BCMPCIE_CMNHDR_PHASE_BIT_INIT; if (HWA_ACTIVE(dhd)) { prot->d2hring_tx_cpln.hwa_db_type = (dhd->bus->hwa_enab_bmap & HWA_ENAB_BITMAP_TXCPLT) ? HWA_DB_TYPE_TXCPLT : 0; prot->d2hring_rx_cpln.hwa_db_type = (dhd->bus->hwa_enab_bmap & HWA_ENAB_BITMAP_RXCPLT) ? HWA_DB_TYPE_RXCPLT : 0; DHD_ERROR(("%s: TXCPLT hwa_db_type:0x%x RXCPLT hwa_db_type:0x%x\n", __FUNCTION__, prot->d2hring_tx_cpln.hwa_db_type, prot->d2hring_rx_cpln.hwa_db_type)); } if (dhd->d2h_sync_mode & PCIE_SHARED_D2H_SYNC_SEQNUM) { prot->d2h_sync_cb = dhd_prot_d2h_sync_seqnum; #ifdef EWP_EDL prot->d2h_edl_sync_cb = dhd_prot_d2h_sync_edl; #endif /* EWP_EDL */ DHD_ERROR(("%s(): D2H sync mechanism is SEQNUM \r\n", __FUNCTION__)); } else if (dhd->d2h_sync_mode & PCIE_SHARED_D2H_SYNC_XORCSUM) { prot->d2h_sync_cb = dhd_prot_d2h_sync_xorcsum; #ifdef EWP_EDL prot->d2h_edl_sync_cb = dhd_prot_d2h_sync_edl; #endif /* EWP_EDL */ DHD_ERROR(("%s(): D2H sync mechanism is XORCSUM \r\n", __FUNCTION__)); } else { prot->d2h_sync_cb = dhd_prot_d2h_sync_none; #ifdef EWP_EDL prot->d2h_edl_sync_cb = dhd_prot_d2h_sync_edl_none; #endif /* EWP_EDL */ DHD_ERROR(("%s(): D2H sync mechanism is NONE \r\n", __FUNCTION__)); } } /** * dhd_prot_h2d_sync_init - Per H2D common ring, setup the msgbuf ring seqnum */ static void dhd_prot_h2d_sync_init(dhd_pub_t *dhd) { dhd_prot_t *prot = dhd->prot; prot->h2dring_rxp_subn.seqnum = H2D_EPOCH_INIT_VAL; if (HWA_ACTIVE(dhd)) { prot->h2dring_rxp_subn.hwa_db_type = (dhd->bus->hwa_enab_bmap & HWA_ENAB_BITMAP_RXPOST) ? HWA_DB_TYPE_RXPOST : 0; DHD_ERROR(("%s: RXPOST hwa_db_type:0x%x\n", __FUNCTION__, prot->d2hring_tx_cpln.hwa_db_type)); } prot->h2dring_rxp_subn.current_phase = 0; prot->h2dring_ctrl_subn.seqnum = H2D_EPOCH_INIT_VAL; prot->h2dring_ctrl_subn.current_phase = 0; } /* +----------------- End of PCIE DHD H2D DMA SYNC ------------------------+ */ /* * +---------------------------------------------------------------------------+ * PCIE DMA-able buffer. Sets up a dhd_dma_buf_t object, which includes the * virtual and physical address, the buffer lenght and the DMA handler. * A secdma handler is also included in the dhd_dma_buf object. * +---------------------------------------------------------------------------+ */ static INLINE void dhd_base_addr_htolpa(sh_addr_t *base_addr, dmaaddr_t pa) { base_addr->low_addr = htol32(PHYSADDRLO(pa)); base_addr->high_addr = htol32(PHYSADDRHI(pa)); } /** * dhd_dma_buf_audit - Any audits on a DHD DMA Buffer. */ static int dhd_dma_buf_audit(dhd_pub_t *dhd, dhd_dma_buf_t *dma_buf) { uint32 pa_lowaddr, end; /* dongle uses 32bit ptr arithmetic */ ASSERT(dma_buf); pa_lowaddr = PHYSADDRLO(dma_buf->pa); ASSERT(PHYSADDRLO(dma_buf->pa) || PHYSADDRHI(dma_buf->pa)); ASSERT(ISALIGNED(pa_lowaddr, DMA_ALIGN_LEN)); ASSERT(dma_buf->len != 0); /* test 32bit offset arithmetic over dma buffer for loss of carry-over */ end = (pa_lowaddr + dma_buf->len); /* end address */ if ((end & 0xFFFFFFFF) < (pa_lowaddr & 0xFFFFFFFF)) { /* exclude carryover */ DHD_ERROR(("%s: dma_buf %x len %d spans dongle 32bit ptr arithmetic\n", __FUNCTION__, pa_lowaddr, dma_buf->len)); return BCME_ERROR; } return BCME_OK; } /** * dhd_dma_buf_alloc - Allocate a cache coherent DMA-able buffer. * returns BCME_OK=0 on success * returns non-zero negative error value on failure. */ int dhd_dma_buf_alloc(dhd_pub_t *dhd, dhd_dma_buf_t *dma_buf, uint32 buf_len) { uint32 dma_pad = 0; osl_t *osh = dhd->osh; uint16 dma_align = DMA_ALIGN_LEN; uint32 rem = 0; ASSERT(dma_buf != NULL); ASSERT(dma_buf->va == NULL); ASSERT(dma_buf->len == 0); /* Pad the buffer length to align to cacheline size. */ rem = (buf_len % DHD_DMA_PAD); dma_pad = rem ? (DHD_DMA_PAD - rem) : 0; dma_buf->va = DMA_ALLOC_CONSISTENT(osh, buf_len + dma_pad, dma_align, &dma_buf->_alloced, &dma_buf->pa, &dma_buf->dmah); if (dma_buf->va == NULL) { DHD_ERROR(("%s: buf_len %d, no memory available\n", __FUNCTION__, buf_len)); return BCME_NOMEM; } dma_buf->len = buf_len; /* not including padded len */ if (dhd_dma_buf_audit(dhd, dma_buf) != BCME_OK) { /* audit dma buf */ dhd_dma_buf_free(dhd, dma_buf); return BCME_ERROR; } dhd_dma_buf_reset(dhd, dma_buf); /* zero out and cache flush */ return BCME_OK; } /** * dhd_dma_buf_reset - Reset a cache coherent DMA-able buffer. */ static void dhd_dma_buf_reset(dhd_pub_t *dhd, dhd_dma_buf_t *dma_buf) { if ((dma_buf == NULL) || (dma_buf->va == NULL)) return; (void)dhd_dma_buf_audit(dhd, dma_buf); /* Zero out the entire buffer and cache flush */ memset((void*)dma_buf->va, 0, dma_buf->len); OSL_CACHE_FLUSH((void *)dma_buf->va, dma_buf->len); } /** * dhd_dma_buf_free - Free a DMA-able buffer that was previously allocated using * dhd_dma_buf_alloc(). */ void dhd_dma_buf_free(dhd_pub_t *dhd, dhd_dma_buf_t *dma_buf) { osl_t *osh = dhd->osh; ASSERT(dma_buf); if (dma_buf->va == NULL) return; /* Allow for free invocation, when alloc failed */ /* DEBUG: dhd_dma_buf_reset(dhd, dma_buf) */ (void)dhd_dma_buf_audit(dhd, dma_buf); /* dma buffer may have been padded at allocation */ DMA_FREE_CONSISTENT(osh, dma_buf->va, dma_buf->_alloced, dma_buf->pa, dma_buf->dmah); memset(dma_buf, 0, sizeof(dhd_dma_buf_t)); } /** * dhd_dma_buf_init - Initialize a dhd_dma_buf with speicifed values. * Do not use dhd_dma_buf_init to zero out a dhd_dma_buf_t object. Use memset 0. */ void dhd_dma_buf_init(dhd_pub_t *dhd, void *dhd_dma_buf, void *va, uint32 len, dmaaddr_t pa, void *dmah, void *secdma) { dhd_dma_buf_t *dma_buf; ASSERT(dhd_dma_buf); dma_buf = (dhd_dma_buf_t *)dhd_dma_buf; dma_buf->va = va; dma_buf->len = len; dma_buf->pa = pa; dma_buf->dmah = dmah; dma_buf->secdma = secdma; /* Audit user defined configuration */ (void)dhd_dma_buf_audit(dhd, dma_buf); } /* +------------------ End of PCIE DHD DMA BUF ADT ------------------------+ */ /* * +---------------------------------------------------------------------------+ * DHD_MAP_PKTID_LOGGING * Logging the PKTID and DMA map/unmap information for the SMMU fault issue * debugging in customer platform. * +---------------------------------------------------------------------------+ */ #ifdef DHD_MAP_PKTID_LOGGING typedef struct dhd_pktid_log_item { dmaaddr_t pa; /* DMA bus address */ uint64 ts_nsec; /* Timestamp: nsec */ uint32 size; /* DMA map/unmap size */ uint32 pktid; /* Packet ID */ uint8 pkttype; /* Packet Type */ uint8 rsvd[7]; /* Reserved for future use */ } dhd_pktid_log_item_t; typedef struct dhd_pktid_log { uint32 items; /* number of total items */ uint32 index; /* index of pktid_log_item */ dhd_pktid_log_item_t map[0]; /* metadata storage */ } dhd_pktid_log_t; typedef void * dhd_pktid_log_handle_t; /* opaque handle to pktid log */ #define MAX_PKTID_LOG (2048) #define DHD_PKTID_LOG_ITEM_SZ (sizeof(dhd_pktid_log_item_t)) #define DHD_PKTID_LOG_SZ(items) (uint32)((sizeof(dhd_pktid_log_t)) + \ ((DHD_PKTID_LOG_ITEM_SZ) * (items))) #define DHD_PKTID_LOG_INIT(dhd, hdl) dhd_pktid_logging_init((dhd), (hdl)) #define DHD_PKTID_LOG_FINI(dhd, hdl) dhd_pktid_logging_fini((dhd), (hdl)) #define DHD_PKTID_LOG(dhd, hdl, pa, pktid, len, pkttype) \ dhd_pktid_logging((dhd), (hdl), (pa), (pktid), (len), (pkttype)) #define DHD_PKTID_LOG_DUMP(dhd) dhd_pktid_logging_dump((dhd)) static dhd_pktid_log_handle_t * dhd_pktid_logging_init(dhd_pub_t *dhd, uint32 num_items) { dhd_pktid_log_t *log; uint32 log_size; log_size = DHD_PKTID_LOG_SZ(num_items); log = (dhd_pktid_log_t *)MALLOCZ(dhd->osh, log_size); if (log == NULL) { DHD_ERROR(("%s: MALLOC failed for size %d\n", __FUNCTION__, log_size)); return (dhd_pktid_log_handle_t *)NULL; } log->items = num_items; log->index = 0; return (dhd_pktid_log_handle_t *)log; /* opaque handle */ } static void dhd_pktid_logging_fini(dhd_pub_t *dhd, dhd_pktid_log_handle_t *handle) { dhd_pktid_log_t *log; uint32 log_size; if (handle == NULL) { DHD_ERROR(("%s: handle is NULL\n", __FUNCTION__)); return; } log = (dhd_pktid_log_t *)handle; log_size = DHD_PKTID_LOG_SZ(log->items); MFREE(dhd->osh, handle, log_size); } static void dhd_pktid_logging(dhd_pub_t *dhd, dhd_pktid_log_handle_t *handle, dmaaddr_t pa, uint32 pktid, uint32 len, uint8 pkttype) { dhd_pktid_log_t *log; uint32 idx; if (handle == NULL) { DHD_ERROR(("%s: handle is NULL\n", __FUNCTION__)); return; } log = (dhd_pktid_log_t *)handle; idx = log->index; log->map[idx].ts_nsec = OSL_LOCALTIME_NS(); log->map[idx].pa = pa; log->map[idx].pktid = pktid; log->map[idx].size = len; log->map[idx].pkttype = pkttype; log->index = (idx + 1) % (log->items); /* update index */ } void dhd_pktid_logging_dump(dhd_pub_t *dhd) { dhd_prot_t *prot = dhd->prot; dhd_pktid_log_t *map_log, *unmap_log; uint64 ts_sec, ts_usec; if (prot == NULL) { DHD_ERROR(("%s: prot is NULL\n", __FUNCTION__)); return; } map_log = (dhd_pktid_log_t *)(prot->pktid_dma_map); unmap_log = (dhd_pktid_log_t *)(prot->pktid_dma_unmap); OSL_GET_LOCALTIME(&ts_sec, &ts_usec); if (map_log && unmap_log) { DHD_ERROR(("%s: map_idx=%d unmap_idx=%d " "current time=[%5lu.%06lu]\n", __FUNCTION__, map_log->index, unmap_log->index, (unsigned long)ts_sec, (unsigned long)ts_usec)); DHD_ERROR(("%s: pktid_map_log(pa)=0x%llx size=%d, " "pktid_unmap_log(pa)=0x%llx size=%d\n", __FUNCTION__, (uint64)__virt_to_phys((ulong)(map_log->map)), (uint32)(DHD_PKTID_LOG_ITEM_SZ * map_log->items), (uint64)__virt_to_phys((ulong)(unmap_log->map)), (uint32)(DHD_PKTID_LOG_ITEM_SZ * unmap_log->items))); } } #endif /* DHD_MAP_PKTID_LOGGING */ /* +----------------- End of DHD_MAP_PKTID_LOGGING -----------------------+ */ /* * +---------------------------------------------------------------------------+ * PktId Map: Provides a native packet pointer to unique 32bit PktId mapping. * Main purpose is to save memory on the dongle, has other purposes as well. * The packet id map, also includes storage for some packet parameters that * may be saved. A native packet pointer along with the parameters may be saved * and a unique 32bit pkt id will be returned. Later, the saved packet pointer * and the metadata may be retrieved using the previously allocated packet id. * +---------------------------------------------------------------------------+ */ #define DHD_PCIE_PKTID #define MAX_CTRL_PKTID (1024) /* Maximum number of pktids supported */ #define MAX_RX_PKTID (1024) #define MAX_TX_PKTID (3072 * 12) /* On Router, the pktptr serves as a pktid. */ #if defined(PROP_TXSTATUS) && !defined(DHD_PCIE_PKTID) #error "PKTIDMAP must be supported with PROP_TXSTATUS/WLFC" #endif // endif /* Enum for marking the buffer color based on usage */ typedef enum dhd_pkttype { PKTTYPE_DATA_TX = 0, PKTTYPE_DATA_RX, PKTTYPE_IOCTL_RX, PKTTYPE_EVENT_RX, PKTTYPE_INFO_RX, /* dhd_prot_pkt_free no check, if pktid reserved and no space avail case */ PKTTYPE_NO_CHECK, PKTTYPE_TSBUF_RX } dhd_pkttype_t; #define DHD_PKTID_MIN_AVAIL_COUNT 512U #define DHD_PKTID_DEPLETED_MAX_COUNT (DHD_PKTID_MIN_AVAIL_COUNT * 2U) #define DHD_PKTID_INVALID (0U) #define DHD_IOCTL_REQ_PKTID (0xFFFE) #define DHD_FAKE_PKTID (0xFACE) #define DHD_H2D_DBGRING_REQ_PKTID 0xFFFD #define DHD_D2H_DBGRING_REQ_PKTID 0xFFFC #define DHD_H2D_HOSTTS_REQ_PKTID 0xFFFB #define DHD_H2D_BTLOGRING_REQ_PKTID 0xFFFA #define DHD_D2H_BTLOGRING_REQ_PKTID 0xFFF9 #define DHD_H2D_SNAPSHOT_UPLOAD_REQ_PKTID 0xFFF8 #ifdef DHD_HP2P #define DHD_D2H_HPPRING_TXREQ_PKTID 0xFFF7 #define DHD_D2H_HPPRING_RXREQ_PKTID 0xFFF6 #endif /* DHD_HP2P */ #define IS_FLOWRING(ring) \ ((strncmp(ring->name, "h2dflr", sizeof("h2dflr"))) == (0)) typedef void * dhd_pktid_map_handle_t; /* opaque handle to a pktid map */ /* Construct a packet id mapping table, returning an opaque map handle */ static dhd_pktid_map_handle_t *dhd_pktid_map_init(dhd_pub_t *dhd, uint32 num_items); /* Destroy a packet id mapping table, freeing all packets active in the table */ static void dhd_pktid_map_fini(dhd_pub_t *dhd, dhd_pktid_map_handle_t *map); #define DHD_NATIVE_TO_PKTID_INIT(dhd, items) dhd_pktid_map_init((dhd), (items)) #define DHD_NATIVE_TO_PKTID_RESET(dhd, map) dhd_pktid_map_reset((dhd), (map)) #define DHD_NATIVE_TO_PKTID_FINI(dhd, map) dhd_pktid_map_fini((dhd), (map)) #define DHD_NATIVE_TO_PKTID_FINI_IOCTL(osh, map) dhd_pktid_map_fini_ioctl((osh), (map)) #ifdef MACOSX_DHD #undef DHD_PCIE_PKTID #define DHD_PCIE_PKTID 1 #endif /* MACOSX_DHD */ #if defined(DHD_PCIE_PKTID) #if defined(MACOSX_DHD) #define IOCTLRESP_USE_CONSTMEM static void free_ioctl_return_buffer(dhd_pub_t *dhd, dhd_dma_buf_t *retbuf); static int alloc_ioctl_return_buffer(dhd_pub_t *dhd, dhd_dma_buf_t *retbuf); #endif // endif /* Determine number of pktids that are available */ static INLINE uint32 dhd_pktid_map_avail_cnt(dhd_pktid_map_handle_t *handle); /* Allocate a unique pktid against which a pkt and some metadata is saved */ static INLINE uint32 dhd_pktid_map_reserve(dhd_pub_t *dhd, dhd_pktid_map_handle_t *handle, void *pkt, dhd_pkttype_t pkttype); static INLINE void dhd_pktid_map_save(dhd_pub_t *dhd, dhd_pktid_map_handle_t *handle, void *pkt, uint32 nkey, dmaaddr_t pa, uint32 len, uint8 dma, void *dmah, void *secdma, dhd_pkttype_t pkttype); static uint32 dhd_pktid_map_alloc(dhd_pub_t *dhd, dhd_pktid_map_handle_t *map, void *pkt, dmaaddr_t pa, uint32 len, uint8 dma, void *dmah, void *secdma, dhd_pkttype_t pkttype); /* Return an allocated pktid, retrieving previously saved pkt and metadata */ static void *dhd_pktid_map_free(dhd_pub_t *dhd, dhd_pktid_map_handle_t *map, uint32 id, dmaaddr_t *pa, uint32 *len, void **dmah, void **secdma, dhd_pkttype_t pkttype, bool rsv_locker); /* * DHD_PKTID_AUDIT_ENABLED: Audit of PktIds in DHD for duplicate alloc and frees * * DHD_PKTID_AUDIT_MAP: Audit the LIFO or FIFO PktIdMap allocator * DHD_PKTID_AUDIT_RING: Audit the pktid during producer/consumer ring operation * * CAUTION: When DHD_PKTID_AUDIT_ENABLED is defined, * either DHD_PKTID_AUDIT_MAP or DHD_PKTID_AUDIT_RING may be selected. */ #if defined(DHD_PKTID_AUDIT_ENABLED) #define USE_DHD_PKTID_AUDIT_LOCK 1 /* Audit the pktidmap allocator */ /* #define DHD_PKTID_AUDIT_MAP */ /* Audit the pktid during production/consumption of workitems */ #define DHD_PKTID_AUDIT_RING #if defined(DHD_PKTID_AUDIT_MAP) && defined(DHD_PKTID_AUDIT_RING) #error "May only enabled audit of MAP or RING, at a time." #endif /* DHD_PKTID_AUDIT_MAP && DHD_PKTID_AUDIT_RING */ #define DHD_DUPLICATE_ALLOC 1 #define DHD_DUPLICATE_FREE 2 #define DHD_TEST_IS_ALLOC 3 #define DHD_TEST_IS_FREE 4 typedef enum dhd_pktid_map_type { DHD_PKTID_MAP_TYPE_CTRL = 1, DHD_PKTID_MAP_TYPE_TX, DHD_PKTID_MAP_TYPE_RX, DHD_PKTID_MAP_TYPE_UNKNOWN } dhd_pktid_map_type_t; #ifdef USE_DHD_PKTID_AUDIT_LOCK #define DHD_PKTID_AUDIT_LOCK_INIT(osh) dhd_os_spin_lock_init(osh) #define DHD_PKTID_AUDIT_LOCK_DEINIT(osh, lock) dhd_os_spin_lock_deinit(osh, lock) #define DHD_PKTID_AUDIT_LOCK(lock) dhd_os_spin_lock(lock) #define DHD_PKTID_AUDIT_UNLOCK(lock, flags) dhd_os_spin_unlock(lock, flags) #else #define DHD_PKTID_AUDIT_LOCK_INIT(osh) (void *)(1) #define DHD_PKTID_AUDIT_LOCK_DEINIT(osh, lock) do { /* noop */ } while (0) #define DHD_PKTID_AUDIT_LOCK(lock) 0 #define DHD_PKTID_AUDIT_UNLOCK(lock, flags) do { /* noop */ } while (0) #endif /* !USE_DHD_PKTID_AUDIT_LOCK */ #endif /* DHD_PKTID_AUDIT_ENABLED */ #define USE_DHD_PKTID_LOCK 1 #ifdef USE_DHD_PKTID_LOCK #define DHD_PKTID_LOCK_INIT(osh) dhd_os_spin_lock_init(osh) #define DHD_PKTID_LOCK_DEINIT(osh, lock) dhd_os_spin_lock_deinit(osh, lock) #define DHD_PKTID_LOCK(lock, flags) (flags) = dhd_os_spin_lock(lock) #define DHD_PKTID_UNLOCK(lock, flags) dhd_os_spin_unlock(lock, flags) #else #define DHD_PKTID_LOCK_INIT(osh) (void *)(1) #define DHD_PKTID_LOCK_DEINIT(osh, lock) \ do { \ BCM_REFERENCE(osh); \ BCM_REFERENCE(lock); \ } while (0) #define DHD_PKTID_LOCK(lock) 0 #define DHD_PKTID_UNLOCK(lock, flags) \ do { \ BCM_REFERENCE(lock); \ BCM_REFERENCE(flags); \ } while (0) #endif /* !USE_DHD_PKTID_LOCK */ typedef enum dhd_locker_state { LOCKER_IS_FREE, LOCKER_IS_BUSY, LOCKER_IS_RSVD } dhd_locker_state_t; /* Packet metadata saved in packet id mapper */ typedef struct dhd_pktid_item { dhd_locker_state_t state; /* tag a locker to be free, busy or reserved */ uint8 dir; /* dma map direction (Tx=flush or Rx=invalidate) */ dhd_pkttype_t pkttype; /* pktlists are maintained based on pkttype */ uint16 len; /* length of mapped packet's buffer */ void *pkt; /* opaque native pointer to a packet */ dmaaddr_t pa; /* physical address of mapped packet's buffer */ void *dmah; /* handle to OS specific DMA map */ void *secdma; } dhd_pktid_item_t; typedef uint32 dhd_pktid_key_t; typedef struct dhd_pktid_map { uint32 items; /* total items in map */ uint32 avail; /* total available items */ int failures; /* lockers unavailable count */ /* Spinlock to protect dhd_pktid_map in process/tasklet context */ void *pktid_lock; /* Used when USE_DHD_PKTID_LOCK is defined */ #if defined(DHD_PKTID_AUDIT_ENABLED) void *pktid_audit_lock; struct bcm_mwbmap *pktid_audit; /* multi word bitmap based audit */ #endif /* DHD_PKTID_AUDIT_ENABLED */ dhd_pktid_key_t *keys; /* map_items +1 unique pkt ids */ dhd_pktid_item_t lockers[0]; /* metadata storage */ } dhd_pktid_map_t; /* * PktId (Locker) #0 is never allocated and is considered invalid. * * On request for a pktid, a value DHD_PKTID_INVALID must be treated as a * depleted pktid pool and must not be used by the caller. * * Likewise, a caller must never free a pktid of value DHD_PKTID_INVALID. */ #define DHD_PKTID_FREE_LOCKER (FALSE) #define DHD_PKTID_RSV_LOCKER (TRUE) #define DHD_PKTID_ITEM_SZ (sizeof(dhd_pktid_item_t)) #define DHD_PKIDMAP_ITEMS(items) (items) #define DHD_PKTID_MAP_SZ(items) (sizeof(dhd_pktid_map_t) + \ (DHD_PKTID_ITEM_SZ * ((items) + 1))) #define DHD_PKTIDMAP_KEYS_SZ(items) (sizeof(dhd_pktid_key_t) * ((items) + 1)) #define DHD_NATIVE_TO_PKTID_RESET_IOCTL(dhd, map) dhd_pktid_map_reset_ioctl((dhd), (map)) /* Convert a packet to a pktid, and save pkt pointer in busy locker */ #define DHD_NATIVE_TO_PKTID_RSV(dhd, map, pkt, pkttype) \ dhd_pktid_map_reserve((dhd), (map), (pkt), (pkttype)) /* Reuse a previously reserved locker to save packet params */ #define DHD_NATIVE_TO_PKTID_SAVE(dhd, map, pkt, nkey, pa, len, dir, dmah, secdma, pkttype) \ dhd_pktid_map_save((dhd), (map), (void *)(pkt), (nkey), (pa), (uint32)(len), \ (uint8)(dir), (void *)(dmah), (void *)(secdma), \ (dhd_pkttype_t)(pkttype)) /* Convert a packet to a pktid, and save packet params in locker */ #define DHD_NATIVE_TO_PKTID(dhd, map, pkt, pa, len, dir, dmah, secdma, pkttype) \ dhd_pktid_map_alloc((dhd), (map), (void *)(pkt), (pa), (uint32)(len), \ (uint8)(dir), (void *)(dmah), (void *)(secdma), \ (dhd_pkttype_t)(pkttype)) /* Convert pktid to a packet, and free the locker */ #define DHD_PKTID_TO_NATIVE(dhd, map, pktid, pa, len, dmah, secdma, pkttype) \ dhd_pktid_map_free((dhd), (map), (uint32)(pktid), \ (dmaaddr_t *)&(pa), (uint32 *)&(len), (void **)&(dmah), \ (void **)&(secdma), (dhd_pkttype_t)(pkttype), DHD_PKTID_FREE_LOCKER) /* Convert the pktid to a packet, empty locker, but keep it reserved */ #define DHD_PKTID_TO_NATIVE_RSV(dhd, map, pktid, pa, len, dmah, secdma, pkttype) \ dhd_pktid_map_free((dhd), (map), (uint32)(pktid), \ (dmaaddr_t *)&(pa), (uint32 *)&(len), (void **)&(dmah), \ (void **)&(secdma), (dhd_pkttype_t)(pkttype), DHD_PKTID_RSV_LOCKER) #define DHD_PKTID_AVAIL(map) dhd_pktid_map_avail_cnt(map) #if defined(DHD_PKTID_AUDIT_ENABLED) static int dhd_get_pktid_map_type(dhd_pub_t *dhd, dhd_pktid_map_t *pktid_map) { dhd_prot_t *prot = dhd->prot; int pktid_map_type; if (pktid_map == prot->pktid_ctrl_map) { pktid_map_type = DHD_PKTID_MAP_TYPE_CTRL; } else if (pktid_map == prot->pktid_tx_map) { pktid_map_type = DHD_PKTID_MAP_TYPE_TX; } else if (pktid_map == prot->pktid_rx_map) { pktid_map_type = DHD_PKTID_MAP_TYPE_RX; } else { pktid_map_type = DHD_PKTID_MAP_TYPE_UNKNOWN; } return pktid_map_type; } /** * __dhd_pktid_audit - Use the mwbmap to audit validity of a pktid. */ static int __dhd_pktid_audit(dhd_pub_t *dhd, dhd_pktid_map_t *pktid_map, uint32 pktid, const int test_for, const char *errmsg) { #define DHD_PKT_AUDIT_STR "ERROR: %16s Host PktId Audit: " struct bcm_mwbmap *handle; uint32 flags; bool ignore_audit; int error = BCME_OK; if (pktid_map == (dhd_pktid_map_t *)NULL) { DHD_ERROR((DHD_PKT_AUDIT_STR "Pkt id map NULL\n", errmsg)); return BCME_OK; } flags = DHD_PKTID_AUDIT_LOCK(pktid_map->pktid_audit_lock); handle = pktid_map->pktid_audit; if (handle == (struct bcm_mwbmap *)NULL) { DHD_ERROR((DHD_PKT_AUDIT_STR "Handle NULL\n", errmsg)); goto out; } /* Exclude special pktids from audit */ ignore_audit = (pktid == DHD_IOCTL_REQ_PKTID) | (pktid == DHD_FAKE_PKTID); if (ignore_audit) { goto out; } if ((pktid == DHD_PKTID_INVALID) || (pktid > pktid_map->items)) { DHD_ERROR((DHD_PKT_AUDIT_STR "PktId<%d> invalid\n", errmsg, pktid)); error = BCME_ERROR; goto out; } /* Perform audit */ switch (test_for) { case DHD_DUPLICATE_ALLOC: if (!bcm_mwbmap_isfree(handle, pktid)) { DHD_ERROR((DHD_PKT_AUDIT_STR "PktId<%d> alloc duplicate\n", errmsg, pktid)); error = BCME_ERROR; } else { bcm_mwbmap_force(handle, pktid); } break; case DHD_DUPLICATE_FREE: if (bcm_mwbmap_isfree(handle, pktid)) { DHD_ERROR((DHD_PKT_AUDIT_STR "PktId<%d> free duplicate\n", errmsg, pktid)); error = BCME_ERROR; } else { bcm_mwbmap_free(handle, pktid); } break; case DHD_TEST_IS_ALLOC: if (bcm_mwbmap_isfree(handle, pktid)) { DHD_ERROR((DHD_PKT_AUDIT_STR "PktId<%d> is not allocated\n", errmsg, pktid)); error = BCME_ERROR; } break; case DHD_TEST_IS_FREE: if (!bcm_mwbmap_isfree(handle, pktid)) { DHD_ERROR((DHD_PKT_AUDIT_STR "PktId<%d> is not free", errmsg, pktid)); error = BCME_ERROR; } break; default: DHD_ERROR(("%s: Invalid test case: %d\n", __FUNCTION__, test_for)); error = BCME_ERROR; break; } out: DHD_PKTID_AUDIT_UNLOCK(pktid_map->pktid_audit_lock, flags); if (error != BCME_OK) { dhd->pktid_audit_failed = TRUE; } return error; } static int dhd_pktid_audit(dhd_pub_t *dhd, dhd_pktid_map_t *pktid_map, uint32 pktid, const int test_for, const char *errmsg) { int ret = BCME_OK; ret = __dhd_pktid_audit(dhd, pktid_map, pktid, test_for, errmsg); if (ret == BCME_ERROR) { DHD_ERROR(("%s: Got Pkt Id Audit failure: PKTID<%d> PKTID MAP TYPE<%d>\n", __FUNCTION__, pktid, dhd_get_pktid_map_type(dhd, pktid_map))); dhd_pktid_error_handler(dhd); } return ret; } #define DHD_PKTID_AUDIT(dhdp, map, pktid, test_for) \ dhd_pktid_audit((dhdp), (dhd_pktid_map_t *)(map), (pktid), (test_for), __FUNCTION__) static int dhd_pktid_audit_ring_debug(dhd_pub_t *dhdp, dhd_pktid_map_t *map, uint32 pktid, const int test_for, void *msg, uint32 msg_len, const char *func) { int ret = BCME_OK; if (dhd_query_bus_erros(dhdp)) { return BCME_ERROR; } ret = __dhd_pktid_audit(dhdp, map, pktid, test_for, func); if (ret == BCME_ERROR) { DHD_ERROR(("%s: Got Pkt Id Audit failure: PKTID<%d> PKTID MAP TYPE<%d>\n", __FUNCTION__, pktid, dhd_get_pktid_map_type(dhdp, map))); prhex(func, (uchar *)msg, msg_len); dhd_pktid_error_handler(dhdp); } return ret; } #define DHD_PKTID_AUDIT_RING_DEBUG(dhdp, map, pktid, test_for, msg, msg_len) \ dhd_pktid_audit_ring_debug((dhdp), (dhd_pktid_map_t *)(map), \ (pktid), (test_for), msg, msg_len, __FUNCTION__) #endif /* DHD_PKTID_AUDIT_ENABLED */ /** * +---------------------------------------------------------------------------+ * Packet to Packet Id mapper using a paradigm. * * dhd_pktid_map manages a set of unique Packet Ids range[1..MAX_xxx_PKTID]. * * dhd_pktid_map_alloc() may be used to save some packet metadata, and a unique * packet id is returned. This unique packet id may be used to retrieve the * previously saved packet metadata, using dhd_pktid_map_free(). On invocation * of dhd_pktid_map_free(), the unique packet id is essentially freed. A * subsequent call to dhd_pktid_map_alloc() may reuse this packet id. * * Implementation Note: * Convert this into a abstraction and place into bcmutils ! * Locker abstraction should treat contents as opaque storage, and a * callback should be registered to handle busy lockers on destructor. * * +---------------------------------------------------------------------------+ */ /** Allocate and initialize a mapper of num_items */ static dhd_pktid_map_handle_t * dhd_pktid_map_init(dhd_pub_t *dhd, uint32 num_items) { void* osh; uint32 nkey; dhd_pktid_map_t *map; uint32 dhd_pktid_map_sz; uint32 map_items; uint32 map_keys_sz; osh = dhd->osh; dhd_pktid_map_sz = DHD_PKTID_MAP_SZ(num_items); map = (dhd_pktid_map_t *)VMALLOC(osh, dhd_pktid_map_sz); if (map == NULL) { DHD_ERROR(("%s:%d: MALLOC failed for size %d\n", __FUNCTION__, __LINE__, dhd_pktid_map_sz)); return (dhd_pktid_map_handle_t *)NULL; } map->items = num_items; map->avail = num_items; map_items = DHD_PKIDMAP_ITEMS(map->items); map_keys_sz = DHD_PKTIDMAP_KEYS_SZ(map->items); /* Initialize the lock that protects this structure */ map->pktid_lock = DHD_PKTID_LOCK_INIT(osh); if (map->pktid_lock == NULL) { DHD_ERROR(("%s:%d: Lock init failed \r\n", __FUNCTION__, __LINE__)); goto error; } map->keys = (dhd_pktid_key_t *)MALLOC(osh, map_keys_sz); if (map->keys == NULL) { DHD_ERROR(("%s:%d: MALLOC failed for map->keys size %d\n", __FUNCTION__, __LINE__, map_keys_sz)); goto error; } #if defined(DHD_PKTID_AUDIT_ENABLED) /* Incarnate a hierarchical multiword bitmap for auditing pktid allocator */ map->pktid_audit = bcm_mwbmap_init(osh, map_items + 1); if (map->pktid_audit == (struct bcm_mwbmap *)NULL) { DHD_ERROR(("%s:%d: pktid_audit init failed\r\n", __FUNCTION__, __LINE__)); goto error; } else { DHD_ERROR(("%s:%d: pktid_audit init succeeded %d\n", __FUNCTION__, __LINE__, map_items + 1)); } map->pktid_audit_lock = DHD_PKTID_AUDIT_LOCK_INIT(osh); #endif /* DHD_PKTID_AUDIT_ENABLED */ for (nkey = 1; nkey <= map_items; nkey++) { /* locker #0 is reserved */ map->keys[nkey] = nkey; /* populate with unique keys */ map->lockers[nkey].state = LOCKER_IS_FREE; map->lockers[nkey].pkt = NULL; /* bzero: redundant */ map->lockers[nkey].len = 0; } /* Reserve pktid #0, i.e. DHD_PKTID_INVALID to be inuse */ map->lockers[DHD_PKTID_INVALID].state = LOCKER_IS_BUSY; /* tag locker #0 as inuse */ map->lockers[DHD_PKTID_INVALID].pkt = NULL; /* bzero: redundant */ map->lockers[DHD_PKTID_INVALID].len = 0; #if defined(DHD_PKTID_AUDIT_ENABLED) /* do not use dhd_pktid_audit() here, use bcm_mwbmap_force directly */ bcm_mwbmap_force(map->pktid_audit, DHD_PKTID_INVALID); #endif /* DHD_PKTID_AUDIT_ENABLED */ return (dhd_pktid_map_handle_t *)map; /* opaque handle */ error: if (map) { #if defined(DHD_PKTID_AUDIT_ENABLED) if (map->pktid_audit != (struct bcm_mwbmap *)NULL) { bcm_mwbmap_fini(osh, map->pktid_audit); /* Destruct pktid_audit */ map->pktid_audit = (struct bcm_mwbmap *)NULL; if (map->pktid_audit_lock) DHD_PKTID_AUDIT_LOCK_DEINIT(osh, map->pktid_audit_lock); } #endif /* DHD_PKTID_AUDIT_ENABLED */ if (map->keys) { MFREE(osh, map->keys, map_keys_sz); } if (map->pktid_lock) { DHD_PKTID_LOCK_DEINIT(osh, map->pktid_lock); } VMFREE(osh, map, dhd_pktid_map_sz); } return (dhd_pktid_map_handle_t *)NULL; } /** * Retrieve all allocated keys and free all . * Freeing implies: unmapping the buffers and freeing the native packet * This could have been a callback registered with the pktid mapper. */ static void dhd_pktid_map_reset(dhd_pub_t *dhd, dhd_pktid_map_handle_t *handle) { void *osh; uint32 nkey; dhd_pktid_map_t *map; dhd_pktid_item_t *locker; uint32 map_items; unsigned long flags; bool data_tx = FALSE; map = (dhd_pktid_map_t *)handle; DHD_PKTID_LOCK(map->pktid_lock, flags); osh = dhd->osh; map_items = DHD_PKIDMAP_ITEMS(map->items); /* skip reserved KEY #0, and start from 1 */ for (nkey = 1; nkey <= map_items; nkey++) { if (map->lockers[nkey].state == LOCKER_IS_BUSY) { locker = &map->lockers[nkey]; locker->state = LOCKER_IS_FREE; data_tx = (locker->pkttype == PKTTYPE_DATA_TX); if (data_tx) { OSL_ATOMIC_DEC(dhd->osh, &dhd->prot->active_tx_count); } #ifdef DHD_PKTID_AUDIT_RING DHD_PKTID_AUDIT(dhd, map, nkey, DHD_DUPLICATE_FREE); /* duplicate frees */ #endif /* DHD_PKTID_AUDIT_RING */ #ifdef DHD_MAP_PKTID_LOGGING DHD_PKTID_LOG(dhd, dhd->prot->pktid_dma_unmap, locker->pa, nkey, locker->len, locker->pkttype); #endif /* DHD_MAP_PKTID_LOGGING */ { if (SECURE_DMA_ENAB(dhd->osh)) SECURE_DMA_UNMAP(osh, locker->pa, locker->len, locker->dir, 0, locker->dmah, locker->secdma, 0); else DMA_UNMAP(osh, locker->pa, locker->len, locker->dir, 0, locker->dmah); } dhd_prot_packet_free(dhd, (ulong*)locker->pkt, locker->pkttype, data_tx); } else { #ifdef DHD_PKTID_AUDIT_RING DHD_PKTID_AUDIT(dhd, map, nkey, DHD_TEST_IS_FREE); #endif /* DHD_PKTID_AUDIT_RING */ } map->keys[nkey] = nkey; /* populate with unique keys */ } map->avail = map_items; memset(&map->lockers[1], 0, sizeof(dhd_pktid_item_t) * map_items); DHD_PKTID_UNLOCK(map->pktid_lock, flags); } #ifdef IOCTLRESP_USE_CONSTMEM /** Called in detach scenario. Releasing IOCTL buffers. */ static void dhd_pktid_map_reset_ioctl(dhd_pub_t *dhd, dhd_pktid_map_handle_t *handle) { uint32 nkey; dhd_pktid_map_t *map; dhd_pktid_item_t *locker; uint32 map_items; unsigned long flags; map = (dhd_pktid_map_t *)handle; DHD_PKTID_LOCK(map->pktid_lock, flags); map_items = DHD_PKIDMAP_ITEMS(map->items); /* skip reserved KEY #0, and start from 1 */ for (nkey = 1; nkey <= map_items; nkey++) { if (map->lockers[nkey].state == LOCKER_IS_BUSY) { dhd_dma_buf_t retbuf; #ifdef DHD_PKTID_AUDIT_RING DHD_PKTID_AUDIT(dhd, map, nkey, DHD_DUPLICATE_FREE); /* duplicate frees */ #endif /* DHD_PKTID_AUDIT_RING */ locker = &map->lockers[nkey]; retbuf.va = locker->pkt; retbuf.len = locker->len; retbuf.pa = locker->pa; retbuf.dmah = locker->dmah; retbuf.secdma = locker->secdma; free_ioctl_return_buffer(dhd, &retbuf); } else { #ifdef DHD_PKTID_AUDIT_RING DHD_PKTID_AUDIT(dhd, map, nkey, DHD_TEST_IS_FREE); #endif /* DHD_PKTID_AUDIT_RING */ } map->keys[nkey] = nkey; /* populate with unique keys */ } map->avail = map_items; memset(&map->lockers[1], 0, sizeof(dhd_pktid_item_t) * map_items); DHD_PKTID_UNLOCK(map->pktid_lock, flags); } #endif /* IOCTLRESP_USE_CONSTMEM */ /** * Free the pktid map. */ static void dhd_pktid_map_fini(dhd_pub_t *dhd, dhd_pktid_map_handle_t *handle) { dhd_pktid_map_t *map; uint32 dhd_pktid_map_sz; uint32 map_keys_sz; if (handle == NULL) return; /* Free any pending packets */ dhd_pktid_map_reset(dhd, handle); map = (dhd_pktid_map_t *)handle; dhd_pktid_map_sz = DHD_PKTID_MAP_SZ(map->items); map_keys_sz = DHD_PKTIDMAP_KEYS_SZ(map->items); DHD_PKTID_LOCK_DEINIT(dhd->osh, map->pktid_lock); #if defined(DHD_PKTID_AUDIT_ENABLED) if (map->pktid_audit != (struct bcm_mwbmap *)NULL) { bcm_mwbmap_fini(dhd->osh, map->pktid_audit); /* Destruct pktid_audit */ map->pktid_audit = (struct bcm_mwbmap *)NULL; if (map->pktid_audit_lock) { DHD_PKTID_AUDIT_LOCK_DEINIT(dhd->osh, map->pktid_audit_lock); } } #endif /* DHD_PKTID_AUDIT_ENABLED */ MFREE(dhd->osh, map->keys, map_keys_sz); VMFREE(dhd->osh, handle, dhd_pktid_map_sz); } #ifdef IOCTLRESP_USE_CONSTMEM static void dhd_pktid_map_fini_ioctl(dhd_pub_t *dhd, dhd_pktid_map_handle_t *handle) { dhd_pktid_map_t *map; uint32 dhd_pktid_map_sz; uint32 map_keys_sz; if (handle == NULL) return; /* Free any pending packets */ dhd_pktid_map_reset_ioctl(dhd, handle); map = (dhd_pktid_map_t *)handle; dhd_pktid_map_sz = DHD_PKTID_MAP_SZ(map->items); map_keys_sz = DHD_PKTIDMAP_KEYS_SZ(map->items); DHD_PKTID_LOCK_DEINIT(dhd->osh, map->pktid_lock); #if defined(DHD_PKTID_AUDIT_ENABLED) if (map->pktid_audit != (struct bcm_mwbmap *)NULL) { bcm_mwbmap_fini(dhd->osh, map->pktid_audit); /* Destruct pktid_audit */ map->pktid_audit = (struct bcm_mwbmap *)NULL; if (map->pktid_audit_lock) { DHD_PKTID_AUDIT_LOCK_DEINIT(dhd->osh, map->pktid_audit_lock); } } #endif /* DHD_PKTID_AUDIT_ENABLED */ MFREE(dhd->osh, map->keys, map_keys_sz); VMFREE(dhd->osh, handle, dhd_pktid_map_sz); } #endif /* IOCTLRESP_USE_CONSTMEM */ /** Get the pktid free count */ static INLINE uint32 BCMFASTPATH dhd_pktid_map_avail_cnt(dhd_pktid_map_handle_t *handle) { dhd_pktid_map_t *map; uint32 avail; unsigned long flags; ASSERT(handle != NULL); map = (dhd_pktid_map_t *)handle; DHD_PKTID_LOCK(map->pktid_lock, flags); avail = map->avail; DHD_PKTID_UNLOCK(map->pktid_lock, flags); return avail; } /** * dhd_pktid_map_reserve - reserve a unique numbered key. Reserved locker is not * yet populated. Invoke the pktid save api to populate the packet parameters * into the locker. This function is not reentrant, and is the caller's * responsibility. Caller must treat a returned value DHD_PKTID_INVALID as * a failure case, implying a depleted pool of pktids. */ static INLINE uint32 dhd_pktid_map_reserve(dhd_pub_t *dhd, dhd_pktid_map_handle_t *handle, void *pkt, dhd_pkttype_t pkttype) { uint32 nkey; dhd_pktid_map_t *map; dhd_pktid_item_t *locker; unsigned long flags; ASSERT(handle != NULL); map = (dhd_pktid_map_t *)handle; DHD_PKTID_LOCK(map->pktid_lock, flags); if ((int)(map->avail) <= 0) { /* no more pktids to allocate */ map->failures++; DHD_INFO(("%s:%d: failed, no free keys\n", __FUNCTION__, __LINE__)); DHD_PKTID_UNLOCK(map->pktid_lock, flags); return DHD_PKTID_INVALID; /* failed alloc request */ } ASSERT(map->avail <= map->items); nkey = map->keys[map->avail]; /* fetch a free locker, pop stack */ if ((map->avail > map->items) || (nkey > map->items)) { map->failures++; DHD_ERROR(("%s:%d: failed to allocate a new pktid," " map->avail<%u>, nkey<%u>, pkttype<%u>\n", __FUNCTION__, __LINE__, map->avail, nkey, pkttype)); DHD_PKTID_UNLOCK(map->pktid_lock, flags); return DHD_PKTID_INVALID; /* failed alloc request */ } locker = &map->lockers[nkey]; /* save packet metadata in locker */ map->avail--; locker->pkt = pkt; /* pkt is saved, other params not yet saved. */ locker->len = 0; locker->state = LOCKER_IS_BUSY; /* reserve this locker */ DHD_PKTID_UNLOCK(map->pktid_lock, flags); ASSERT(nkey != DHD_PKTID_INVALID); return nkey; /* return locker's numbered key */ } /* * dhd_pktid_map_save - Save a packet's parameters into a locker * corresponding to a previously reserved unique numbered key. */ static INLINE void dhd_pktid_map_save(dhd_pub_t *dhd, dhd_pktid_map_handle_t *handle, void *pkt, uint32 nkey, dmaaddr_t pa, uint32 len, uint8 dir, void *dmah, void *secdma, dhd_pkttype_t pkttype) { dhd_pktid_map_t *map; dhd_pktid_item_t *locker; unsigned long flags; ASSERT(handle != NULL); map = (dhd_pktid_map_t *)handle; DHD_PKTID_LOCK(map->pktid_lock, flags); if ((nkey == DHD_PKTID_INVALID) || (nkey > DHD_PKIDMAP_ITEMS(map->items))) { DHD_ERROR(("%s:%d: Error! saving invalid pktid<%u> pkttype<%u>\n", __FUNCTION__, __LINE__, nkey, pkttype)); DHD_PKTID_UNLOCK(map->pktid_lock, flags); #ifdef DHD_FW_COREDUMP if (dhd->memdump_enabled) { /* collect core dump */ dhd->memdump_type = DUMP_TYPE_PKTID_INVALID; dhd_bus_mem_dump(dhd); } #else ASSERT(0); #endif /* DHD_FW_COREDUMP */ return; } locker = &map->lockers[nkey]; ASSERT(((locker->state == LOCKER_IS_BUSY) && (locker->pkt == pkt)) || ((locker->state == LOCKER_IS_RSVD) && (locker->pkt == NULL))); /* store contents in locker */ locker->dir = dir; locker->pa = pa; locker->len = (uint16)len; /* 16bit len */ locker->dmah = dmah; /* 16bit len */ locker->secdma = secdma; locker->pkttype = pkttype; locker->pkt = pkt; locker->state = LOCKER_IS_BUSY; /* make this locker busy */ #ifdef DHD_MAP_PKTID_LOGGING DHD_PKTID_LOG(dhd, dhd->prot->pktid_dma_map, pa, nkey, len, pkttype); #endif /* DHD_MAP_PKTID_LOGGING */ DHD_PKTID_UNLOCK(map->pktid_lock, flags); } /** * dhd_pktid_map_alloc - Allocate a unique numbered key and save the packet * contents into the corresponding locker. Return the numbered key. */ static uint32 BCMFASTPATH dhd_pktid_map_alloc(dhd_pub_t *dhd, dhd_pktid_map_handle_t *handle, void *pkt, dmaaddr_t pa, uint32 len, uint8 dir, void *dmah, void *secdma, dhd_pkttype_t pkttype) { uint32 nkey; nkey = dhd_pktid_map_reserve(dhd, handle, pkt, pkttype); if (nkey != DHD_PKTID_INVALID) { dhd_pktid_map_save(dhd, handle, pkt, nkey, pa, len, dir, dmah, secdma, pkttype); } return nkey; } /** * dhd_pktid_map_free - Given a numbered key, return the locker contents. * dhd_pktid_map_free() is not reentrant, and is the caller's responsibility. * Caller may not free a pktid value DHD_PKTID_INVALID or an arbitrary pktid * value. Only a previously allocated pktid may be freed. */ static void * BCMFASTPATH dhd_pktid_map_free(dhd_pub_t *dhd, dhd_pktid_map_handle_t *handle, uint32 nkey, dmaaddr_t *pa, uint32 *len, void **dmah, void **secdma, dhd_pkttype_t pkttype, bool rsv_locker) { dhd_pktid_map_t *map; dhd_pktid_item_t *locker; void * pkt; unsigned long long locker_addr; unsigned long flags; ASSERT(handle != NULL); map = (dhd_pktid_map_t *)handle; DHD_PKTID_LOCK(map->pktid_lock, flags); if ((nkey == DHD_PKTID_INVALID) || (nkey > DHD_PKIDMAP_ITEMS(map->items))) { DHD_ERROR(("%s:%d: Error! Try to free invalid pktid<%u>, pkttype<%d>\n", __FUNCTION__, __LINE__, nkey, pkttype)); DHD_PKTID_UNLOCK(map->pktid_lock, flags); #ifdef DHD_FW_COREDUMP if (dhd->memdump_enabled) { /* collect core dump */ dhd->memdump_type = DUMP_TYPE_PKTID_INVALID; dhd_bus_mem_dump(dhd); } #else ASSERT(0); #endif /* DHD_FW_COREDUMP */ return NULL; } locker = &map->lockers[nkey]; #if defined(DHD_PKTID_AUDIT_MAP) DHD_PKTID_AUDIT(dhd, map, nkey, DHD_DUPLICATE_FREE); /* Audit duplicate FREE */ #endif /* DHD_PKTID_AUDIT_MAP */ /* Debug check for cloned numbered key */ if (locker->state == LOCKER_IS_FREE) { DHD_ERROR(("%s:%d: Error! freeing already freed invalid pktid<%u>\n", __FUNCTION__, __LINE__, nkey)); DHD_PKTID_UNLOCK(map->pktid_lock, flags); #ifdef DHD_FW_COREDUMP if (dhd->memdump_enabled) { /* collect core dump */ dhd->memdump_type = DUMP_TYPE_PKTID_INVALID; dhd_bus_mem_dump(dhd); } #else ASSERT(0); #endif /* DHD_FW_COREDUMP */ return NULL; } /* Check for the colour of the buffer i.e The buffer posted for TX, * should be freed for TX completion. Similarly the buffer posted for * IOCTL should be freed for IOCT completion etc. */ if ((pkttype != PKTTYPE_NO_CHECK) && (locker->pkttype != pkttype)) { DHD_ERROR(("%s:%d: Error! Invalid Buffer Free for pktid<%u> \n", __FUNCTION__, __LINE__, nkey)); #ifdef BCMDMA64OSL PHYSADDRTOULONG(locker->pa, locker_addr); #else locker_addr = PHYSADDRLO(locker->pa); #endif /* BCMDMA64OSL */ DHD_ERROR(("%s:%d: locker->state <%d>, locker->pkttype <%d>," "pkttype <%d> locker->pa <0x%llx> \n", __FUNCTION__, __LINE__, locker->state, locker->pkttype, pkttype, locker_addr)); DHD_PKTID_UNLOCK(map->pktid_lock, flags); #ifdef DHD_FW_COREDUMP if (dhd->memdump_enabled) { /* collect core dump */ dhd->memdump_type = DUMP_TYPE_PKTID_INVALID; dhd_bus_mem_dump(dhd); } #else ASSERT(0); #endif /* DHD_FW_COREDUMP */ return NULL; } if (rsv_locker == DHD_PKTID_FREE_LOCKER) { map->avail++; map->keys[map->avail] = nkey; /* make this numbered key available */ locker->state = LOCKER_IS_FREE; /* open and free Locker */ } else { /* pktid will be reused, but the locker does not have a valid pkt */ locker->state = LOCKER_IS_RSVD; } #if defined(DHD_PKTID_AUDIT_MAP) DHD_PKTID_AUDIT(dhd, map, nkey, DHD_TEST_IS_FREE); #endif /* DHD_PKTID_AUDIT_MAP */ #ifdef DHD_MAP_PKTID_LOGGING DHD_PKTID_LOG(dhd, dhd->prot->pktid_dma_unmap, locker->pa, nkey, (uint32)locker->len, pkttype); #endif /* DHD_MAP_PKTID_LOGGING */ *pa = locker->pa; /* return contents of locker */ *len = (uint32)locker->len; *dmah = locker->dmah; *secdma = locker->secdma; pkt = locker->pkt; locker->pkt = NULL; /* Clear pkt */ locker->len = 0; DHD_PKTID_UNLOCK(map->pktid_lock, flags); return pkt; } #else /* ! DHD_PCIE_PKTID */ typedef struct pktlist { PKT_LIST *tx_pkt_list; /* list for tx packets */ PKT_LIST *rx_pkt_list; /* list for rx packets */ PKT_LIST *ctrl_pkt_list; /* list for ioctl/event buf post */ } pktlists_t; /* * Given that each workitem only uses a 32bit pktid, only 32bit hosts may avail * of a one to one mapping 32bit pktptr and a 32bit pktid. * * - When PKTIDMAP is not used, DHD_NATIVE_TO_PKTID variants will never fail. * - Neither DHD_NATIVE_TO_PKTID nor DHD_PKTID_TO_NATIVE need to be protected by * a lock. * - Hence DHD_PKTID_INVALID is not defined when DHD_PCIE_PKTID is undefined. */ #define DHD_PKTID32(pktptr32) ((uint32)(pktptr32)) #define DHD_PKTPTR32(pktid32) ((void *)(pktid32)) static INLINE uint32 dhd_native_to_pktid(dhd_pktid_map_handle_t *map, void *pktptr32, dmaaddr_t pa, uint32 dma_len, void *dmah, void *secdma, dhd_pkttype_t pkttype); static INLINE void * dhd_pktid_to_native(dhd_pktid_map_handle_t *map, uint32 pktid32, dmaaddr_t *pa, uint32 *dma_len, void **dmah, void **secdma, dhd_pkttype_t pkttype); static dhd_pktid_map_handle_t * dhd_pktid_map_init(dhd_pub_t *dhd, uint32 num_items) { osl_t *osh = dhd->osh; pktlists_t *handle = NULL; if ((handle = (pktlists_t *) MALLOCZ(osh, sizeof(pktlists_t))) == NULL) { DHD_ERROR(("%s:%d: MALLOC failed for lists allocation, size=%d\n", __FUNCTION__, __LINE__, sizeof(pktlists_t))); goto error_done; } if ((handle->tx_pkt_list = (PKT_LIST *) MALLOC(osh, sizeof(PKT_LIST))) == NULL) { DHD_ERROR(("%s:%d: MALLOC failed for list allocation, size=%d\n", __FUNCTION__, __LINE__, sizeof(PKT_LIST))); goto error; } if ((handle->rx_pkt_list = (PKT_LIST *) MALLOC(osh, sizeof(PKT_LIST))) == NULL) { DHD_ERROR(("%s:%d: MALLOC failed for list allocation, size=%d\n", __FUNCTION__, __LINE__, sizeof(PKT_LIST))); goto error; } if ((handle->ctrl_pkt_list = (PKT_LIST *) MALLOC(osh, sizeof(PKT_LIST))) == NULL) { DHD_ERROR(("%s:%d: MALLOC failed for list allocation, size=%d\n", __FUNCTION__, __LINE__, sizeof(PKT_LIST))); goto error; } PKTLIST_INIT(handle->tx_pkt_list); PKTLIST_INIT(handle->rx_pkt_list); PKTLIST_INIT(handle->ctrl_pkt_list); return (dhd_pktid_map_handle_t *) handle; error: if (handle->ctrl_pkt_list) { MFREE(osh, handle->ctrl_pkt_list, sizeof(PKT_LIST)); } if (handle->rx_pkt_list) { MFREE(osh, handle->rx_pkt_list, sizeof(PKT_LIST)); } if (handle->tx_pkt_list) { MFREE(osh, handle->tx_pkt_list, sizeof(PKT_LIST)); } if (handle) { MFREE(osh, handle, sizeof(pktlists_t)); } error_done: return (dhd_pktid_map_handle_t *)NULL; } static void dhd_pktid_map_reset(dhd_pub_t *dhd, pktlists_t *handle) { osl_t *osh = dhd->osh; if (handle->ctrl_pkt_list) { PKTLIST_FINI(handle->ctrl_pkt_list); MFREE(osh, handle->ctrl_pkt_list, sizeof(PKT_LIST)); } if (handle->rx_pkt_list) { PKTLIST_FINI(handle->rx_pkt_list); MFREE(osh, handle->rx_pkt_list, sizeof(PKT_LIST)); } if (handle->tx_pkt_list) { PKTLIST_FINI(handle->tx_pkt_list); MFREE(osh, handle->tx_pkt_list, sizeof(PKT_LIST)); } } static void dhd_pktid_map_fini(dhd_pub_t *dhd, dhd_pktid_map_handle_t *map) { osl_t *osh = dhd->osh; pktlists_t *handle = (pktlists_t *) map; ASSERT(handle != NULL); if (handle == (pktlists_t *)NULL) { return; } dhd_pktid_map_reset(dhd, handle); if (handle) { MFREE(osh, handle, sizeof(pktlists_t)); } } /** Save dma parameters into the packet's pkttag and convert a pktptr to pktid */ static INLINE uint32 dhd_native_to_pktid(dhd_pktid_map_handle_t *map, void *pktptr32, dmaaddr_t pa, uint32 dma_len, void *dmah, void *secdma, dhd_pkttype_t pkttype) { pktlists_t *handle = (pktlists_t *) map; ASSERT(pktptr32 != NULL); DHD_PKT_SET_DMA_LEN(pktptr32, dma_len); DHD_PKT_SET_DMAH(pktptr32, dmah); DHD_PKT_SET_PA(pktptr32, pa); DHD_PKT_SET_SECDMA(pktptr32, secdma); if (pkttype == PKTTYPE_DATA_TX) { PKTLIST_ENQ(handle->tx_pkt_list, pktptr32); } else if (pkttype == PKTTYPE_DATA_RX) { PKTLIST_ENQ(handle->rx_pkt_list, pktptr32); } else { PKTLIST_ENQ(handle->ctrl_pkt_list, pktptr32); } return DHD_PKTID32(pktptr32); } /** Convert a pktid to pktptr and retrieve saved dma parameters from packet */ static INLINE void * dhd_pktid_to_native(dhd_pktid_map_handle_t *map, uint32 pktid32, dmaaddr_t *pa, uint32 *dma_len, void **dmah, void **secdma, dhd_pkttype_t pkttype) { pktlists_t *handle = (pktlists_t *) map; void *pktptr32; ASSERT(pktid32 != 0U); pktptr32 = DHD_PKTPTR32(pktid32); *dma_len = DHD_PKT_GET_DMA_LEN(pktptr32); *dmah = DHD_PKT_GET_DMAH(pktptr32); *pa = DHD_PKT_GET_PA(pktptr32); *secdma = DHD_PKT_GET_SECDMA(pktptr32); if (pkttype == PKTTYPE_DATA_TX) { PKTLIST_UNLINK(handle->tx_pkt_list, pktptr32); } else if (pkttype == PKTTYPE_DATA_RX) { PKTLIST_UNLINK(handle->rx_pkt_list, pktptr32); } else { PKTLIST_UNLINK(handle->ctrl_pkt_list, pktptr32); } return pktptr32; } #define DHD_NATIVE_TO_PKTID_RSV(dhd, map, pkt, pkttype) DHD_PKTID32(pkt) #define DHD_NATIVE_TO_PKTID_SAVE(dhd, map, pkt, nkey, pa, len, dma_dir, dmah, secdma, pkttype) \ ({ BCM_REFERENCE(dhd); BCM_REFERENCE(nkey); BCM_REFERENCE(dma_dir); \ dhd_native_to_pktid((dhd_pktid_map_handle_t *) map, (pkt), (pa), (len), \ (dmah), (secdma), (dhd_pkttype_t)(pkttype)); \ }) #define DHD_NATIVE_TO_PKTID(dhd, map, pkt, pa, len, dma_dir, dmah, secdma, pkttype) \ ({ BCM_REFERENCE(dhd); BCM_REFERENCE(dma_dir); \ dhd_native_to_pktid((dhd_pktid_map_handle_t *) map, (pkt), (pa), (len), \ (dmah), (secdma), (dhd_pkttype_t)(pkttype)); \ }) #define DHD_PKTID_TO_NATIVE(dhd, map, pktid, pa, len, dmah, secdma, pkttype) \ ({ BCM_REFERENCE(dhd); BCM_REFERENCE(pkttype); \ dhd_pktid_to_native((dhd_pktid_map_handle_t *) map, (uint32)(pktid), \ (dmaaddr_t *)&(pa), (uint32 *)&(len), (void **)&(dmah), \ (void **)&secdma, (dhd_pkttype_t)(pkttype)); \ }) #define DHD_PKTID_AVAIL(map) (~0) #endif /* ! DHD_PCIE_PKTID */ /* +------------------ End of PCIE DHD PKTID MAPPER -----------------------+ */ /** * The PCIE FD protocol layer is constructed in two phases: * Phase 1. dhd_prot_attach() * Phase 2. dhd_prot_init() * * dhd_prot_attach() - Allocates a dhd_prot_t object and resets all its fields. * All Common rings are allose attached (msgbuf_ring_t objects are allocated * with DMA-able buffers). * All dhd_dma_buf_t objects are also allocated here. * * As dhd_prot_attach is invoked prior to the pcie_shared object is read, any * initialization of objects that requires information advertized by the dongle * may not be performed here. * E.g. the number of TxPost flowrings is not know at this point, neither do * we know shich form of D2H DMA sync mechanism is advertized by the dongle, or * whether the dongle supports DMA-ing of WR/RD indices for the H2D and/or D2H * rings (common + flow). * * dhd_prot_init() is invoked after the bus layer has fetched the information * advertized by the dongle in the pcie_shared_t. */ int dhd_prot_attach(dhd_pub_t *dhd) { osl_t *osh = dhd->osh; dhd_prot_t *prot; /* FW going to DMA extended trap data, * allocate buffer for the maximum extended trap data. */ uint32 trap_buf_len = BCMPCIE_EXT_TRAP_DATA_MAXLEN; /* Allocate prot structure */ if (!(prot = (dhd_prot_t *)DHD_OS_PREALLOC(dhd, DHD_PREALLOC_PROT, sizeof(dhd_prot_t)))) { DHD_ERROR(("%s: kmalloc failed\n", __FUNCTION__)); goto fail; } memset(prot, 0, sizeof(*prot)); prot->osh = osh; dhd->prot = prot; /* DMAing ring completes supported? FALSE by default */ dhd->dma_d2h_ring_upd_support = FALSE; dhd->dma_h2d_ring_upd_support = FALSE; dhd->dma_ring_upd_overwrite = FALSE; dhd->hwa_inited = 0; dhd->idma_inited = 0; dhd->ifrm_inited = 0; dhd->dar_inited = 0; /* Common Ring Allocations */ /* Ring 0: H2D Control Submission */ if (dhd_prot_ring_attach(dhd, &prot->h2dring_ctrl_subn, "h2dctrl", H2DRING_CTRL_SUB_MAX_ITEM, H2DRING_CTRL_SUB_ITEMSIZE, BCMPCIE_H2D_MSGRING_CONTROL_SUBMIT) != BCME_OK) { DHD_ERROR(("%s: dhd_prot_ring_attach H2D Ctrl Submission failed\n", __FUNCTION__)); goto fail; } /* Ring 1: H2D Receive Buffer Post */ if (dhd_prot_ring_attach(dhd, &prot->h2dring_rxp_subn, "h2drxp", H2DRING_RXPOST_MAX_ITEM, H2DRING_RXPOST_ITEMSIZE, BCMPCIE_H2D_MSGRING_RXPOST_SUBMIT) != BCME_OK) { DHD_ERROR(("%s: dhd_prot_ring_attach H2D RxPost failed\n", __FUNCTION__)); goto fail; } /* Ring 2: D2H Control Completion */ if (dhd_prot_ring_attach(dhd, &prot->d2hring_ctrl_cpln, "d2hctrl", D2HRING_CTRL_CMPLT_MAX_ITEM, D2HRING_CTRL_CMPLT_ITEMSIZE, BCMPCIE_D2H_MSGRING_CONTROL_COMPLETE) != BCME_OK) { DHD_ERROR(("%s: dhd_prot_ring_attach D2H Ctrl Completion failed\n", __FUNCTION__)); goto fail; } /* Ring 3: D2H Transmit Complete */ if (dhd_prot_ring_attach(dhd, &prot->d2hring_tx_cpln, "d2htxcpl", D2HRING_TXCMPLT_MAX_ITEM, D2HRING_TXCMPLT_ITEMSIZE, BCMPCIE_D2H_MSGRING_TX_COMPLETE) != BCME_OK) { DHD_ERROR(("%s: dhd_prot_ring_attach D2H Tx Completion failed\n", __FUNCTION__)); goto fail; } /* Ring 4: D2H Receive Complete */ if (dhd_prot_ring_attach(dhd, &prot->d2hring_rx_cpln, "d2hrxcpl", D2HRING_RXCMPLT_MAX_ITEM, D2HRING_RXCMPLT_ITEMSIZE, BCMPCIE_D2H_MSGRING_RX_COMPLETE) != BCME_OK) { DHD_ERROR(("%s: dhd_prot_ring_attach D2H Rx Completion failed\n", __FUNCTION__)); goto fail; } /* * Max number of flowrings is not yet known. msgbuf_ring_t with DMA-able * buffers for flowrings will be instantiated, in dhd_prot_init() . * See dhd_prot_flowrings_pool_attach() */ /* ioctl response buffer */ if (dhd_dma_buf_alloc(dhd, &prot->retbuf, IOCT_RETBUF_SIZE)) { goto fail; } /* IOCTL request buffer */ if (dhd_dma_buf_alloc(dhd, &prot->ioctbuf, IOCT_RETBUF_SIZE)) { goto fail; } /* Host TS request buffer one buffer for now */ if (dhd_dma_buf_alloc(dhd, &prot->hostts_req_buf, CTRLSUB_HOSTTS_MEESAGE_SIZE)) { goto fail; } prot->hostts_req_buf_inuse = FALSE; /* Scratch buffer for dma rx offset */ #ifdef BCM_HOST_BUF if (dhd_dma_buf_alloc(dhd, &prot->d2h_dma_scratch_buf, ROUNDUP(DMA_D2H_SCRATCH_BUF_LEN, 16) + DMA_HOST_BUFFER_LEN)) #else if (dhd_dma_buf_alloc(dhd, &prot->d2h_dma_scratch_buf, DMA_D2H_SCRATCH_BUF_LEN)) #endif /* BCM_HOST_BUF */ { goto fail; } /* scratch buffer bus throughput measurement */ if (dhd_dma_buf_alloc(dhd, &prot->host_bus_throughput_buf, DHD_BUS_TPUT_BUF_LEN)) { goto fail; } #ifdef DHD_RX_CHAINING dhd_rxchain_reset(&prot->rxchain); #endif // endif prot->pktid_ctrl_map = DHD_NATIVE_TO_PKTID_INIT(dhd, MAX_CTRL_PKTID); if (prot->pktid_ctrl_map == NULL) { goto fail; } prot->pktid_rx_map = DHD_NATIVE_TO_PKTID_INIT(dhd, MAX_RX_PKTID); if (prot->pktid_rx_map == NULL) goto fail; prot->pktid_tx_map = DHD_NATIVE_TO_PKTID_INIT(dhd, MAX_TX_PKTID); if (prot->pktid_tx_map == NULL) goto fail; #ifdef IOCTLRESP_USE_CONSTMEM prot->pktid_map_handle_ioctl = DHD_NATIVE_TO_PKTID_INIT(dhd, DHD_FLOWRING_MAX_IOCTLRESPBUF_POST); if (prot->pktid_map_handle_ioctl == NULL) { goto fail; } #endif /* IOCTLRESP_USE_CONSTMEM */ #ifdef DHD_MAP_PKTID_LOGGING prot->pktid_dma_map = DHD_PKTID_LOG_INIT(dhd, MAX_PKTID_LOG); if (prot->pktid_dma_map == NULL) { DHD_ERROR(("%s: failed to allocate pktid_dma_map\n", __FUNCTION__)); } prot->pktid_dma_unmap = DHD_PKTID_LOG_INIT(dhd, MAX_PKTID_LOG); if (prot->pktid_dma_unmap == NULL) { DHD_ERROR(("%s: failed to allocate pktid_dma_unmap\n", __FUNCTION__)); } #endif /* DHD_MAP_PKTID_LOGGING */ /* Initialize the work queues to be used by the Load Balancing logic */ #if defined(DHD_LB_TXC) { void *buffer; buffer = MALLOC(dhd->osh, sizeof(void*) * DHD_LB_WORKQ_SZ); if (buffer == NULL) { DHD_ERROR(("%s: failed to allocate RXC work buffer\n", __FUNCTION__)); goto fail; } bcm_workq_init(&prot->tx_compl_prod, &prot->tx_compl_cons, buffer, DHD_LB_WORKQ_SZ); prot->tx_compl_prod_sync = 0; DHD_INFO(("%s: created tx_compl_workq <%p,%d>\n", __FUNCTION__, buffer, DHD_LB_WORKQ_SZ)); } #endif /* DHD_LB_TXC */ #if defined(DHD_LB_RXC) { void *buffer; buffer = MALLOC(dhd->osh, sizeof(void*) * DHD_LB_WORKQ_SZ); if (buffer == NULL) { DHD_ERROR(("%s: failed to allocate RXC work buffer\n", __FUNCTION__)); goto fail; } bcm_workq_init(&prot->rx_compl_prod, &prot->rx_compl_cons, buffer, DHD_LB_WORKQ_SZ); prot->rx_compl_prod_sync = 0; DHD_INFO(("%s: created rx_compl_workq <%p,%d>\n", __FUNCTION__, buffer, DHD_LB_WORKQ_SZ)); } #endif /* DHD_LB_RXC */ /* Initialize trap buffer */ if (dhd_dma_buf_alloc(dhd, &dhd->prot->fw_trap_buf, trap_buf_len)) { DHD_ERROR(("%s: dhd_init_trap_buffer falied\n", __FUNCTION__)); goto fail; } return BCME_OK; fail: if (prot) { /* Free up all allocated memories */ dhd_prot_detach(dhd); } return BCME_NOMEM; } /* dhd_prot_attach */ static int dhd_alloc_host_scbs(dhd_pub_t *dhd) { int ret = BCME_OK; sh_addr_t base_addr; dhd_prot_t *prot = dhd->prot; uint32 host_scb_size = 0; if (dhd->hscb_enable) { /* read number of bytes to allocate from F/W */ dhd_bus_cmn_readshared(dhd->bus, &host_scb_size, HOST_SCB_ADDR, 0); if (host_scb_size) { /* alloc array of host scbs */ ret = dhd_dma_buf_alloc(dhd, &prot->host_scb_buf, host_scb_size); /* write host scb address to F/W */ if (ret == BCME_OK) { dhd_base_addr_htolpa(&base_addr, prot->host_scb_buf.pa); dhd_bus_cmn_writeshared(dhd->bus, &base_addr, sizeof(base_addr), HOST_SCB_ADDR, 0); } else { DHD_TRACE(("dhd_alloc_host_scbs: dhd_dma_buf_alloc error\n")); } } else { DHD_TRACE(("dhd_alloc_host_scbs: host_scb_size is 0.\n")); } } else { DHD_TRACE(("dhd_alloc_host_scbs: Host scb not supported in F/W.\n")); } return ret; } void dhd_set_host_cap(dhd_pub_t *dhd) { uint32 data = 0; dhd_prot_t *prot = dhd->prot; if (dhd->bus->api.fw_rev >= PCIE_SHARED_VERSION_6) { if (dhd->h2d_phase_supported) { data |= HOSTCAP_H2D_VALID_PHASE; if (dhd->force_dongletrap_on_bad_h2d_phase) data |= HOSTCAP_H2D_ENABLE_TRAP_ON_BADPHASE; } if (prot->host_ipc_version > prot->device_ipc_version) prot->active_ipc_version = prot->device_ipc_version; else prot->active_ipc_version = prot->host_ipc_version; data |= prot->active_ipc_version; if (dhdpcie_bus_get_pcie_hostready_supported(dhd->bus)) { DHD_INFO(("Advertise Hostready Capability\n")); data |= HOSTCAP_H2D_ENABLE_HOSTRDY; } { /* Disable DS altogether */ data |= HOSTCAP_DS_NO_OOB_DW; dhdpcie_bus_enab_pcie_dw(dhd->bus, DEVICE_WAKE_NONE); } /* Indicate support for extended trap data */ data |= HOSTCAP_EXTENDED_TRAP_DATA; /* Indicate support for TX status metadata */ if (dhd->pcie_txs_metadata_enable != 0) data |= HOSTCAP_TXSTATUS_METADATA; /* Enable fast delete ring in firmware if supported */ if (dhd->fast_delete_ring_support) { data |= HOSTCAP_FAST_DELETE_RING; } if (dhdpcie_bus_get_pcie_hwa_supported(dhd->bus)) { DHD_ERROR(("HWA inited\n")); /* TODO: Is hostcap needed? */ dhd->hwa_inited = TRUE; } if (dhdpcie_bus_get_pcie_idma_supported(dhd->bus)) { DHD_ERROR(("IDMA inited\n")); data |= HOSTCAP_H2D_IDMA; dhd->idma_inited = TRUE; } if (dhdpcie_bus_get_pcie_ifrm_supported(dhd->bus)) { DHD_ERROR(("IFRM Inited\n")); data |= HOSTCAP_H2D_IFRM; dhd->ifrm_inited = TRUE; dhd->dma_h2d_ring_upd_support = FALSE; dhd_prot_dma_indx_free(dhd); } if (dhdpcie_bus_get_pcie_dar_supported(dhd->bus)) { DHD_ERROR(("DAR doorbell Use\n")); data |= HOSTCAP_H2D_DAR; dhd->dar_inited = TRUE; } data |= HOSTCAP_UR_FW_NO_TRAP; if (dhd->hscb_enable) { data |= HOSTCAP_HSCB; } #ifdef EWP_EDL if (dhd->dongle_edl_support) { data |= HOSTCAP_EDL_RING; DHD_ERROR(("Enable EDL host cap\n")); } else { DHD_ERROR(("DO NOT SET EDL host cap\n")); } #endif /* EWP_EDL */ #ifdef DHD_HP2P if (dhd->hp2p_capable) { data |= HOSTCAP_PKT_TIMESTAMP; data |= HOSTCAP_PKT_HP2P; DHD_ERROR(("Enable HP2P in host cap\n")); } else { DHD_ERROR(("HP2P not enabled in host cap\n")); } #endif // endif #ifdef DHD_DB0TS if (dhd->db0ts_capable) { data |= HOSTCAP_DB0_TIMESTAMP; DHD_ERROR(("Enable DB0 TS in host cap\n")); } else { DHD_ERROR(("DB0 TS not enabled in host cap\n")); } #endif /* DHD_DB0TS */ if (dhd->extdtxs_in_txcpl) { DHD_ERROR(("Enable hostcap: EXTD TXS in txcpl\n")); data |= HOSTCAP_PKT_TXSTATUS; } else { DHD_ERROR(("Enable hostcap: EXTD TXS in txcpl\n")); } DHD_INFO(("%s:Active Ver:%d, Host Ver:%d, FW Ver:%d\n", __FUNCTION__, prot->active_ipc_version, prot->host_ipc_version, prot->device_ipc_version)); dhd_bus_cmn_writeshared(dhd->bus, &data, sizeof(uint32), HOST_API_VERSION, 0); dhd_bus_cmn_writeshared(dhd->bus, &prot->fw_trap_buf.pa, sizeof(prot->fw_trap_buf.pa), DNGL_TO_HOST_TRAP_ADDR, 0); } } /** * dhd_prot_init - second stage of dhd_prot_attach. Now that the dongle has * completed it's initialization of the pcie_shared structure, we may now fetch * the dongle advertized features and adjust the protocol layer accordingly. * * dhd_prot_init() may be invoked again after a dhd_prot_reset(). */ int dhd_prot_init(dhd_pub_t *dhd) { sh_addr_t base_addr; dhd_prot_t *prot = dhd->prot; int ret = 0; uint32 idmacontrol; uint32 waitcount = 0; #ifdef WL_MONITOR dhd->monitor_enable = FALSE; #endif /* WL_MONITOR */ /** * A user defined value can be assigned to global variable h2d_max_txpost via * 1. DHD IOVAR h2d_max_txpost, before firmware download * 2. module parameter h2d_max_txpost * prot->h2d_max_txpost is assigned with H2DRING_TXPOST_MAX_ITEM, * if user has not defined any buffers by one of the above methods. */ prot->h2d_max_txpost = (uint16)h2d_max_txpost; DHD_ERROR(("%s:%d: h2d_max_txpost = %d\n", __FUNCTION__, __LINE__, prot->h2d_max_txpost)); /* Read max rx packets supported by dongle */ dhd_bus_cmn_readshared(dhd->bus, &prot->max_rxbufpost, MAX_HOST_RXBUFS, 0); if (prot->max_rxbufpost == 0) { /* This would happen if the dongle firmware is not */ /* using the latest shared structure template */ prot->max_rxbufpost = DEFAULT_RX_BUFFERS_TO_POST; } DHD_ERROR(("%s:%d: MAX_RXBUFPOST = %d\n", __FUNCTION__, __LINE__, prot->max_rxbufpost)); /* Initialize. bzero() would blow away the dma pointers. */ prot->max_eventbufpost = DHD_FLOWRING_MAX_EVENTBUF_POST; prot->max_ioctlrespbufpost = DHD_FLOWRING_MAX_IOCTLRESPBUF_POST; prot->max_infobufpost = DHD_H2D_INFORING_MAX_BUF_POST; prot->max_tsbufpost = DHD_MAX_TSBUF_POST; prot->cur_ioctlresp_bufs_posted = 0; OSL_ATOMIC_INIT(dhd->osh, &prot->active_tx_count); prot->data_seq_no = 0; prot->ioctl_seq_no = 0; prot->rxbufpost = 0; prot->cur_event_bufs_posted = 0; prot->ioctl_state = 0; prot->curr_ioctl_cmd = 0; prot->cur_ts_bufs_posted = 0; prot->infobufpost = 0; prot->dmaxfer.srcmem.va = NULL; prot->dmaxfer.dstmem.va = NULL; prot->dmaxfer.in_progress = FALSE; prot->metadata_dbg = FALSE; prot->rx_metadata_offset = 0; prot->tx_metadata_offset = 0; prot->txp_threshold = TXP_FLUSH_MAX_ITEMS_FLUSH_CNT; /* To catch any rollover issues fast, starting with higher ioctl_trans_id */ prot->ioctl_trans_id = MAXBITVAL(NBITS(prot->ioctl_trans_id)) - BUFFER_BEFORE_ROLLOVER; prot->ioctl_state = 0; prot->ioctl_status = 0; prot->ioctl_resplen = 0; prot->ioctl_received = IOCTL_WAIT; /* Initialize Common MsgBuf Rings */ prot->device_ipc_version = dhd->bus->api.fw_rev; prot->host_ipc_version = PCIE_SHARED_VERSION; prot->no_tx_resource = FALSE; /* Init the host API version */ dhd_set_host_cap(dhd); /* alloc and configure scb host address for dongle */ if ((ret = dhd_alloc_host_scbs(dhd))) { return ret; } /* Register the interrupt function upfront */ /* remove corerev checks in data path */ /* do this after host/fw negotiation for DAR */ prot->mb_ring_fn = dhd_bus_get_mbintr_fn(dhd->bus); prot->mb_2_ring_fn = dhd_bus_get_mbintr_2_fn(dhd->bus); dhd->bus->_dar_war = (dhd->bus->sih->buscorerev < 64) ? TRUE : FALSE; dhd_prot_ring_init(dhd, &prot->h2dring_ctrl_subn); dhd_prot_ring_init(dhd, &prot->h2dring_rxp_subn); dhd_prot_ring_init(dhd, &prot->d2hring_ctrl_cpln); /* Make it compatibile with pre-rev7 Firmware */ if (prot->active_ipc_version < PCIE_SHARED_VERSION_7) { prot->d2hring_tx_cpln.item_len = D2HRING_TXCMPLT_ITEMSIZE_PREREV7; prot->d2hring_rx_cpln.item_len = D2HRING_RXCMPLT_ITEMSIZE_PREREV7; } dhd_prot_ring_init(dhd, &prot->d2hring_tx_cpln); dhd_prot_ring_init(dhd, &prot->d2hring_rx_cpln); dhd_prot_d2h_sync_init(dhd); dhd_prot_h2d_sync_init(dhd); /* init the scratch buffer */ dhd_base_addr_htolpa(&base_addr, prot->d2h_dma_scratch_buf.pa); dhd_bus_cmn_writeshared(dhd->bus, &base_addr, sizeof(base_addr), D2H_DMA_SCRATCH_BUF, 0); dhd_bus_cmn_writeshared(dhd->bus, &prot->d2h_dma_scratch_buf.len, sizeof(prot->d2h_dma_scratch_buf.len), D2H_DMA_SCRATCH_BUF_LEN, 0); /* If supported by the host, indicate the memory block * for completion writes / submission reads to shared space */ if (dhd->dma_d2h_ring_upd_support) { dhd_base_addr_htolpa(&base_addr, prot->d2h_dma_indx_wr_buf.pa); dhd_bus_cmn_writeshared(dhd->bus, &base_addr, sizeof(base_addr), D2H_DMA_INDX_WR_BUF, 0); dhd_base_addr_htolpa(&base_addr, prot->h2d_dma_indx_rd_buf.pa); dhd_bus_cmn_writeshared(dhd->bus, &base_addr, sizeof(base_addr), H2D_DMA_INDX_RD_BUF, 0); } if (dhd->dma_h2d_ring_upd_support || IDMA_ENAB(dhd)) { dhd_base_addr_htolpa(&base_addr, prot->h2d_dma_indx_wr_buf.pa); dhd_bus_cmn_writeshared(dhd->bus, &base_addr, sizeof(base_addr), H2D_DMA_INDX_WR_BUF, 0); dhd_base_addr_htolpa(&base_addr, prot->d2h_dma_indx_rd_buf.pa); dhd_bus_cmn_writeshared(dhd->bus, &base_addr, sizeof(base_addr), D2H_DMA_INDX_RD_BUF, 0); } /* Signal to the dongle that common ring init is complete */ if (dhd->hostrdy_after_init) dhd_bus_hostready(dhd->bus); /* * If the DMA-able buffers for flowring needs to come from a specific * contiguous memory region, then setup prot->flowrings_dma_buf here. * dhd_prot_flowrings_pool_attach() will carve out DMA-able buffers from * this contiguous memory region, for each of the flowrings. */ /* Pre-allocate pool of msgbuf_ring for flowrings */ if (dhd_prot_flowrings_pool_attach(dhd) != BCME_OK) { return BCME_ERROR; } /* If IFRM is enabled, wait for FW to setup the DMA channel */ if (IFRM_ENAB(dhd)) { dhd_base_addr_htolpa(&base_addr, prot->h2d_ifrm_indx_wr_buf.pa); dhd_bus_cmn_writeshared(dhd->bus, &base_addr, sizeof(base_addr), H2D_IFRM_INDX_WR_BUF, 0); } /* If IDMA is enabled and initied, wait for FW to setup the IDMA descriptors * Waiting just before configuring doorbell */ #define IDMA_ENABLE_WAIT 10 if (IDMA_ACTIVE(dhd)) { /* wait for idma_en bit in IDMAcontrol register to be set */ /* Loop till idma_en is not set */ uint buscorerev = dhd->bus->sih->buscorerev; idmacontrol = si_corereg(dhd->bus->sih, dhd->bus->sih->buscoreidx, IDMAControl(buscorerev), 0, 0); while (!(idmacontrol & PCIE_IDMA_MODE_EN(buscorerev)) && (waitcount++ < IDMA_ENABLE_WAIT)) { DHD_ERROR(("iDMA not enabled yet,waiting 1 ms c=%d IDMAControl = %08x\n", waitcount, idmacontrol)); OSL_DELAY(1000); /* 1ms as its onetime only */ idmacontrol = si_corereg(dhd->bus->sih, dhd->bus->sih->buscoreidx, IDMAControl(buscorerev), 0, 0); } if (waitcount < IDMA_ENABLE_WAIT) { DHD_ERROR(("iDMA enabled PCIEControl = %08x\n", idmacontrol)); } else { DHD_ERROR(("Error: wait for iDMA timed out wait=%d IDMAControl = %08x\n", waitcount, idmacontrol)); return BCME_ERROR; } } /* Host should configure soft doorbells if needed ... here */ /* Post to dongle host configured soft doorbells */ dhd_msgbuf_ring_config_d2h_soft_doorbell(dhd); dhd_msgbuf_rxbuf_post_ioctlresp_bufs(dhd); dhd_msgbuf_rxbuf_post_event_bufs(dhd); prot->no_retry = FALSE; prot->no_aggr = FALSE; prot->fixed_rate = FALSE; /* * Note that any communication with the Dongle should be added * below this point. Any other host data structure initialiation that * needs to be done prior to the DPC starts executing should be done * befor this point. * Because once we start sending H2D requests to Dongle, the Dongle * respond immediately. So the DPC context to handle this * D2H response could preempt the context in which dhd_prot_init is running. * We want to ensure that all the Host part of dhd_prot_init is * done before that. */ /* See if info rings could be created, info rings should be created * only if dongle does not support EDL */ #ifdef EWP_EDL if (dhd->bus->api.fw_rev >= PCIE_SHARED_VERSION_6 && !dhd->dongle_edl_support) #else if (dhd->bus->api.fw_rev >= PCIE_SHARED_VERSION_6) #endif /* EWP_EDL */ { if ((ret = dhd_prot_init_info_rings(dhd)) != BCME_OK) { /* For now log and proceed, further clean up action maybe necessary * when we have more clarity. */ DHD_ERROR(("%s Info rings couldn't be created: Err Code%d", __FUNCTION__, ret)); } } #ifdef EWP_EDL /* Create Enhanced Debug Lane rings (EDL) if dongle supports it */ if (dhd->dongle_edl_support) { if ((ret = dhd_prot_init_edl_rings(dhd)) != BCME_OK) { DHD_ERROR(("%s EDL rings couldn't be created: Err Code%d", __FUNCTION__, ret)); } } #endif /* EWP_EDL */ #ifdef DHD_HP2P /* create HPP txcmpl/rxcmpl rings */ if (dhd->bus->api.fw_rev >= PCIE_SHARED_VERSION_7 && dhd->hp2p_capable) { if ((ret = dhd_prot_init_hp2p_rings(dhd)) != BCME_OK) { /* For now log and proceed, further clean up action maybe necessary * when we have more clarity. */ DHD_ERROR(("%s HP2P rings couldn't be created: Err Code%d", __FUNCTION__, ret)); } } #endif /* DHD_HP2P */ return BCME_OK; } /* dhd_prot_init */ /** * dhd_prot_detach - PCIE FD protocol layer destructor. * Unlink, frees allocated protocol memory (including dhd_prot) */ void dhd_prot_detach(dhd_pub_t *dhd) { dhd_prot_t *prot = dhd->prot; /* Stop the protocol module */ if (prot) { /* free up all DMA-able buffers allocated during prot attach/init */ dhd_dma_buf_free(dhd, &prot->d2h_dma_scratch_buf); dhd_dma_buf_free(dhd, &prot->retbuf); dhd_dma_buf_free(dhd, &prot->ioctbuf); dhd_dma_buf_free(dhd, &prot->host_bus_throughput_buf); dhd_dma_buf_free(dhd, &prot->hostts_req_buf); dhd_dma_buf_free(dhd, &prot->fw_trap_buf); dhd_dma_buf_free(dhd, &prot->host_scb_buf); /* DMA-able buffers for DMAing H2D/D2H WR/RD indices */ dhd_dma_buf_free(dhd, &prot->h2d_dma_indx_wr_buf); dhd_dma_buf_free(dhd, &prot->h2d_dma_indx_rd_buf); dhd_dma_buf_free(dhd, &prot->d2h_dma_indx_wr_buf); dhd_dma_buf_free(dhd, &prot->d2h_dma_indx_rd_buf); dhd_dma_buf_free(dhd, &prot->h2d_ifrm_indx_wr_buf); /* Common MsgBuf Rings */ dhd_prot_ring_detach(dhd, &prot->h2dring_ctrl_subn); dhd_prot_ring_detach(dhd, &prot->h2dring_rxp_subn); dhd_prot_ring_detach(dhd, &prot->d2hring_ctrl_cpln); dhd_prot_ring_detach(dhd, &prot->d2hring_tx_cpln); dhd_prot_ring_detach(dhd, &prot->d2hring_rx_cpln); /* Detach each DMA-able buffer and free the pool of msgbuf_ring_t */ dhd_prot_flowrings_pool_detach(dhd); /* detach info rings */ dhd_prot_detach_info_rings(dhd); #ifdef EWP_EDL dhd_prot_detach_edl_rings(dhd); #endif // endif #ifdef DHD_HP2P /* detach HPP rings */ dhd_prot_detach_hp2p_rings(dhd); #endif /* DHD_HP2P */ /* if IOCTLRESP_USE_CONSTMEM is defined IOCTL PKTs use pktid_map_handle_ioctl * handler and PKT memory is allocated using alloc_ioctl_return_buffer(), Otherwise * they will be part of pktid_ctrl_map handler and PKT memory is allocated using * PKTGET_STATIC (if DHD_USE_STATIC_CTRLBUF is defined) OR PKGET. * Similarly for freeing PKT buffers DHD_NATIVE_TO_PKTID_FINI will be used * which calls PKTFREE_STATIC (if DHD_USE_STATIC_CTRLBUF is defined) OR PKFREE. * Else if IOCTLRESP_USE_CONSTMEM is defined IOCTL PKTs will be freed using * DHD_NATIVE_TO_PKTID_FINI_IOCTL which calls free_ioctl_return_buffer. */ DHD_NATIVE_TO_PKTID_FINI(dhd, prot->pktid_ctrl_map); DHD_NATIVE_TO_PKTID_FINI(dhd, prot->pktid_rx_map); DHD_NATIVE_TO_PKTID_FINI(dhd, prot->pktid_tx_map); #ifdef IOCTLRESP_USE_CONSTMEM DHD_NATIVE_TO_PKTID_FINI_IOCTL(dhd, prot->pktid_map_handle_ioctl); #endif // endif #ifdef DHD_MAP_PKTID_LOGGING DHD_PKTID_LOG_FINI(dhd, prot->pktid_dma_map); DHD_PKTID_LOG_FINI(dhd, prot->pktid_dma_unmap); #endif /* DHD_MAP_PKTID_LOGGING */ #if defined(DHD_LB_TXC) if (prot->tx_compl_prod.buffer) MFREE(dhd->osh, prot->tx_compl_prod.buffer, sizeof(void*) * DHD_LB_WORKQ_SZ); #endif /* DHD_LB_TXC */ #if defined(DHD_LB_RXC) if (prot->rx_compl_prod.buffer) MFREE(dhd->osh, prot->rx_compl_prod.buffer, sizeof(void*) * DHD_LB_WORKQ_SZ); #endif /* DHD_LB_RXC */ DHD_OS_PREFREE(dhd, dhd->prot, sizeof(dhd_prot_t)); dhd->prot = NULL; } } /* dhd_prot_detach */ /** * dhd_prot_reset - Reset the protocol layer without freeing any objects. * This may be invoked to soft reboot the dongle, without having to * detach and attach the entire protocol layer. * * After dhd_prot_reset(), dhd_prot_init() may be invoked * without going througha dhd_prot_attach() phase. */ void dhd_prot_reset(dhd_pub_t *dhd) { struct dhd_prot *prot = dhd->prot; DHD_TRACE(("%s\n", __FUNCTION__)); if (prot == NULL) { return; } dhd_prot_flowrings_pool_reset(dhd); /* Reset Common MsgBuf Rings */ dhd_prot_ring_reset(dhd, &prot->h2dring_ctrl_subn); dhd_prot_ring_reset(dhd, &prot->h2dring_rxp_subn); dhd_prot_ring_reset(dhd, &prot->d2hring_ctrl_cpln); dhd_prot_ring_reset(dhd, &prot->d2hring_tx_cpln); dhd_prot_ring_reset(dhd, &prot->d2hring_rx_cpln); /* Reset info rings */ if (prot->h2dring_info_subn) { dhd_prot_ring_reset(dhd, prot->h2dring_info_subn); } if (prot->d2hring_info_cpln) { dhd_prot_ring_reset(dhd, prot->d2hring_info_cpln); } #ifdef EWP_EDL if (prot->d2hring_edl) { dhd_prot_ring_reset(dhd, prot->d2hring_edl); } #endif /* EWP_EDL */ /* Reset all DMA-able buffers allocated during prot attach */ dhd_dma_buf_reset(dhd, &prot->d2h_dma_scratch_buf); dhd_dma_buf_reset(dhd, &prot->retbuf); dhd_dma_buf_reset(dhd, &prot->ioctbuf); dhd_dma_buf_reset(dhd, &prot->host_bus_throughput_buf); dhd_dma_buf_reset(dhd, &prot->hostts_req_buf); dhd_dma_buf_reset(dhd, &prot->fw_trap_buf); dhd_dma_buf_reset(dhd, &prot->host_scb_buf); dhd_dma_buf_reset(dhd, &prot->h2d_ifrm_indx_wr_buf); /* Rest all DMA-able buffers for DMAing H2D/D2H WR/RD indices */ dhd_dma_buf_reset(dhd, &prot->h2d_dma_indx_rd_buf); dhd_dma_buf_reset(dhd, &prot->h2d_dma_indx_wr_buf); dhd_dma_buf_reset(dhd, &prot->d2h_dma_indx_rd_buf); dhd_dma_buf_reset(dhd, &prot->d2h_dma_indx_wr_buf); prot->rx_metadata_offset = 0; prot->tx_metadata_offset = 0; prot->rxbufpost = 0; prot->cur_event_bufs_posted = 0; prot->cur_ioctlresp_bufs_posted = 0; OSL_ATOMIC_INIT(dhd->osh, &prot->active_tx_count); prot->data_seq_no = 0; prot->ioctl_seq_no = 0; prot->ioctl_state = 0; prot->curr_ioctl_cmd = 0; prot->ioctl_received = IOCTL_WAIT; /* To catch any rollover issues fast, starting with higher ioctl_trans_id */ prot->ioctl_trans_id = MAXBITVAL(NBITS(prot->ioctl_trans_id)) - BUFFER_BEFORE_ROLLOVER; /* dhd_flow_rings_init is located at dhd_bus_start, * so when stopping bus, flowrings shall be deleted */ if (dhd->flow_rings_inited) { dhd_flow_rings_deinit(dhd); } #ifdef DHD_HP2P if (prot->d2hring_hp2p_txcpl) { dhd_prot_ring_reset(dhd, prot->d2hring_hp2p_txcpl); } if (prot->d2hring_hp2p_rxcpl) { dhd_prot_ring_reset(dhd, prot->d2hring_hp2p_rxcpl); } #endif /* DHD_HP2P */ /* Reset PKTID map */ DHD_NATIVE_TO_PKTID_RESET(dhd, prot->pktid_ctrl_map); DHD_NATIVE_TO_PKTID_RESET(dhd, prot->pktid_rx_map); DHD_NATIVE_TO_PKTID_RESET(dhd, prot->pktid_tx_map); #ifdef IOCTLRESP_USE_CONSTMEM DHD_NATIVE_TO_PKTID_RESET_IOCTL(dhd, prot->pktid_map_handle_ioctl); #endif /* IOCTLRESP_USE_CONSTMEM */ #ifdef DMAMAP_STATS dhd->dma_stats.txdata = dhd->dma_stats.txdata_sz = 0; dhd->dma_stats.rxdata = dhd->dma_stats.rxdata_sz = 0; #ifndef IOCTLRESP_USE_CONSTMEM dhd->dma_stats.ioctl_rx = dhd->dma_stats.ioctl_rx_sz = 0; #endif /* IOCTLRESP_USE_CONSTMEM */ dhd->dma_stats.event_rx = dhd->dma_stats.event_rx_sz = 0; dhd->dma_stats.info_rx = dhd->dma_stats.info_rx_sz = 0; dhd->dma_stats.tsbuf_rx = dhd->dma_stats.tsbuf_rx_sz = 0; #endif /* DMAMAP_STATS */ } /* dhd_prot_reset */ #if defined(DHD_LB_RXP) #define DHD_LB_DISPATCH_RX_PROCESS(dhdp) dhd_lb_dispatch_rx_process(dhdp) #else /* !DHD_LB_RXP */ #define DHD_LB_DISPATCH_RX_PROCESS(dhdp) do { /* noop */ } while (0) #endif /* !DHD_LB_RXP */ #if defined(DHD_LB_RXC) #define DHD_LB_DISPATCH_RX_COMPL(dhdp) dhd_lb_dispatch_rx_compl(dhdp) #else /* !DHD_LB_RXC */ #define DHD_LB_DISPATCH_RX_COMPL(dhdp) do { /* noop */ } while (0) #endif /* !DHD_LB_RXC */ #if defined(DHD_LB_TXC) #define DHD_LB_DISPATCH_TX_COMPL(dhdp) dhd_lb_dispatch_tx_compl(dhdp) #else /* !DHD_LB_TXC */ #define DHD_LB_DISPATCH_TX_COMPL(dhdp) do { /* noop */ } while (0) #endif /* !DHD_LB_TXC */ #if defined(DHD_LB) /* DHD load balancing: deferral of work to another online CPU */ /* DHD_LB_TXC DHD_LB_RXC DHD_LB_RXP dispatchers, in dhd_linux.c */ extern void dhd_lb_tx_compl_dispatch(dhd_pub_t *dhdp); extern void dhd_lb_rx_compl_dispatch(dhd_pub_t *dhdp); extern void dhd_lb_rx_napi_dispatch(dhd_pub_t *dhdp); extern void dhd_lb_rx_pkt_enqueue(dhd_pub_t *dhdp, void *pkt, int ifidx); #if defined(DHD_LB_RXP) /** * dhd_lb_dispatch_rx_process - load balance by dispatch Rx processing work * to other CPU cores */ static INLINE void dhd_lb_dispatch_rx_process(dhd_pub_t *dhdp) { dhd_lb_rx_napi_dispatch(dhdp); /* dispatch rx_process_napi */ } #endif /* DHD_LB_RXP */ #if defined(DHD_LB_TXC) /** * dhd_lb_dispatch_tx_compl - load balance by dispatch Tx complition work * to other CPU cores */ static INLINE void dhd_lb_dispatch_tx_compl(dhd_pub_t *dhdp, uint16 ring_idx) { bcm_workq_prod_sync(&dhdp->prot->tx_compl_prod); /* flush WR index */ dhd_lb_tx_compl_dispatch(dhdp); /* dispatch tx_compl_tasklet */ } /** * DHD load balanced tx completion tasklet handler, that will perform the * freeing of packets on the selected CPU. Packet pointers are delivered to * this tasklet via the tx complete workq. */ void dhd_lb_tx_compl_handler(unsigned long data) { int elem_ix; void *pkt, **elem; dmaaddr_t pa; uint32 pa_len; dhd_pub_t *dhd = (dhd_pub_t *)data; dhd_prot_t *prot = dhd->prot; bcm_workq_t *workq = &prot->tx_compl_cons; uint32 count = 0; int curr_cpu; curr_cpu = get_cpu(); put_cpu(); DHD_LB_STATS_TXC_PERCPU_CNT_INCR(dhd); while (1) { elem_ix = bcm_ring_cons(WORKQ_RING(workq), DHD_LB_WORKQ_SZ); if (elem_ix == BCM_RING_EMPTY) { break; } elem = WORKQ_ELEMENT(void *, workq, elem_ix); pkt = *elem; DHD_INFO(("%s: tx_compl_cons pkt<%p>\n", __FUNCTION__, pkt)); OSL_PREFETCH(PKTTAG(pkt)); OSL_PREFETCH(pkt); pa = DHD_PKTTAG_PA((dhd_pkttag_fr_t *)PKTTAG(pkt)); pa_len = DHD_PKTTAG_PA_LEN((dhd_pkttag_fr_t *)PKTTAG(pkt)); DMA_UNMAP(dhd->osh, pa, pa_len, DMA_RX, 0, 0); #if defined(BCMPCIE) dhd_txcomplete(dhd, pkt, true); #ifdef DHD_4WAYM4_FAIL_DISCONNECT dhd_eap_txcomplete(dhd, pkt, TRUE, txstatus->cmn_hdr.if_id); #endif /* DHD_4WAYM4_FAIL_DISCONNECT */ #endif // endif PKTFREE(dhd->osh, pkt, TRUE); count++; } /* smp_wmb(); */ bcm_workq_cons_sync(workq); DHD_LB_STATS_UPDATE_TXC_HISTO(dhd, count); } #endif /* DHD_LB_TXC */ #if defined(DHD_LB_RXC) /** * dhd_lb_dispatch_rx_compl - load balance by dispatch rx complition work * to other CPU cores */ static INLINE void dhd_lb_dispatch_rx_compl(dhd_pub_t *dhdp) { dhd_prot_t *prot = dhdp->prot; /* Schedule the takslet only if we have to */ if (prot->rxbufpost <= (prot->max_rxbufpost - RXBUFPOST_THRESHOLD)) { /* flush WR index */ bcm_workq_prod_sync(&dhdp->prot->rx_compl_prod); dhd_lb_rx_compl_dispatch(dhdp); /* dispatch rx_compl_tasklet */ } } void dhd_lb_rx_compl_handler(unsigned long data) { dhd_pub_t *dhd = (dhd_pub_t *)data; bcm_workq_t *workq = &dhd->prot->rx_compl_cons; DHD_LB_STATS_RXC_PERCPU_CNT_INCR(dhd); dhd_msgbuf_rxbuf_post(dhd, TRUE); /* re-use pktids */ bcm_workq_cons_sync(workq); } #endif /* DHD_LB_RXC */ #endif /* DHD_LB */ void dhd_prot_rx_dataoffset(dhd_pub_t *dhd, uint32 rx_offset) { dhd_prot_t *prot = dhd->prot; prot->rx_dataoffset = rx_offset; } static int dhd_check_create_info_rings(dhd_pub_t *dhd) { dhd_prot_t *prot = dhd->prot; int ret = BCME_ERROR; uint16 ringid; { /* dongle may increase max_submission_rings so keep * ringid at end of dynamic rings */ ringid = dhd->bus->max_tx_flowrings + (dhd->bus->max_submission_rings - dhd->bus->max_tx_flowrings) + BCMPCIE_H2D_COMMON_MSGRINGS; } if (prot->d2hring_info_cpln) { /* for d2hring re-entry case, clear inited flag */ prot->d2hring_info_cpln->inited = FALSE; } if (prot->h2dring_info_subn && prot->d2hring_info_cpln) { return BCME_OK; /* dhd_prot_init rentry after a dhd_prot_reset */ } if (prot->h2dring_info_subn == NULL) { prot->h2dring_info_subn = MALLOCZ(prot->osh, sizeof(msgbuf_ring_t)); if (prot->h2dring_info_subn == NULL) { DHD_ERROR(("%s: couldn't alloc memory for h2dring_info_subn\n", __FUNCTION__)); return BCME_NOMEM; } DHD_INFO(("%s: about to create debug submit ring\n", __FUNCTION__)); ret = dhd_prot_ring_attach(dhd, prot->h2dring_info_subn, "h2dinfo", H2DRING_DYNAMIC_INFO_MAX_ITEM, H2DRING_INFO_BUFPOST_ITEMSIZE, ringid); if (ret != BCME_OK) { DHD_ERROR(("%s: couldn't alloc resources for dbg submit ring\n", __FUNCTION__)); goto err; } } if (prot->d2hring_info_cpln == NULL) { prot->d2hring_info_cpln = MALLOCZ(prot->osh, sizeof(msgbuf_ring_t)); if (prot->d2hring_info_cpln == NULL) { DHD_ERROR(("%s: couldn't alloc memory for h2dring_info_subn\n", __FUNCTION__)); return BCME_NOMEM; } /* create the debug info completion ring next to debug info submit ring * ringid = id next to debug info submit ring */ ringid = ringid + 1; DHD_INFO(("%s: about to create debug cpl ring\n", __FUNCTION__)); ret = dhd_prot_ring_attach(dhd, prot->d2hring_info_cpln, "d2hinfo", D2HRING_DYNAMIC_INFO_MAX_ITEM, D2HRING_INFO_BUFCMPLT_ITEMSIZE, ringid); if (ret != BCME_OK) { DHD_ERROR(("%s: couldn't alloc resources for dbg cpl ring\n", __FUNCTION__)); dhd_prot_ring_detach(dhd, prot->h2dring_info_subn); goto err; } } return ret; err: MFREE(prot->osh, prot->h2dring_info_subn, sizeof(msgbuf_ring_t)); prot->h2dring_info_subn = NULL; if (prot->d2hring_info_cpln) { MFREE(prot->osh, prot->d2hring_info_cpln, sizeof(msgbuf_ring_t)); prot->d2hring_info_cpln = NULL; } return ret; } /* dhd_check_create_info_rings */ int dhd_prot_init_info_rings(dhd_pub_t *dhd) { dhd_prot_t *prot = dhd->prot; int ret = BCME_OK; if ((ret = dhd_check_create_info_rings(dhd)) != BCME_OK) { DHD_ERROR(("%s: info rings aren't created! \n", __FUNCTION__)); return ret; } if ((prot->d2hring_info_cpln->inited) || (prot->d2hring_info_cpln->create_pending)) { DHD_INFO(("Info completion ring was created!\n")); return ret; } DHD_TRACE(("trying to send create d2h info ring: id %d\n", prot->d2hring_info_cpln->idx)); ret = dhd_send_d2h_ringcreate(dhd, prot->d2hring_info_cpln, BCMPCIE_D2H_RING_TYPE_DBGBUF_CPL, DHD_D2H_DBGRING_REQ_PKTID); if (ret != BCME_OK) return ret; prot->h2dring_info_subn->seqnum = H2D_EPOCH_INIT_VAL; prot->h2dring_info_subn->current_phase = 0; prot->d2hring_info_cpln->seqnum = D2H_EPOCH_INIT_VAL; prot->d2hring_info_cpln->current_phase = BCMPCIE_CMNHDR_PHASE_BIT_INIT; DHD_TRACE(("trying to send create h2d info ring id %d\n", prot->h2dring_info_subn->idx)); prot->h2dring_info_subn->n_completion_ids = 1; prot->h2dring_info_subn->compeltion_ring_ids[0] = prot->d2hring_info_cpln->idx; ret = dhd_send_h2d_ringcreate(dhd, prot->h2dring_info_subn, BCMPCIE_H2D_RING_TYPE_DBGBUF_SUBMIT, DHD_H2D_DBGRING_REQ_PKTID); /* Note that there is no way to delete d2h or h2d ring deletion incase either fails, * so can not cleanup if one ring was created while the other failed */ return ret; } /* dhd_prot_init_info_rings */ static void dhd_prot_detach_info_rings(dhd_pub_t *dhd) { if (dhd->prot->h2dring_info_subn) { dhd_prot_ring_detach(dhd, dhd->prot->h2dring_info_subn); MFREE(dhd->prot->osh, dhd->prot->h2dring_info_subn, sizeof(msgbuf_ring_t)); dhd->prot->h2dring_info_subn = NULL; } if (dhd->prot->d2hring_info_cpln) { dhd_prot_ring_detach(dhd, dhd->prot->d2hring_info_cpln); MFREE(dhd->prot->osh, dhd->prot->d2hring_info_cpln, sizeof(msgbuf_ring_t)); dhd->prot->d2hring_info_cpln = NULL; } } #ifdef DHD_HP2P static int dhd_check_create_hp2p_rings(dhd_pub_t *dhd) { dhd_prot_t *prot = dhd->prot; int ret = BCME_ERROR; uint16 ringid; /* Last 2 dynamic ring indices are used by hp2p rings */ ringid = dhd->bus->max_submission_rings + dhd->bus->max_completion_rings - 2; if (prot->d2hring_hp2p_txcpl == NULL) { prot->d2hring_hp2p_txcpl = MALLOCZ(prot->osh, sizeof(msgbuf_ring_t)); if (prot->d2hring_hp2p_txcpl == NULL) { DHD_ERROR(("%s: couldn't alloc memory for d2hring_hp2p_txcpl\n", __FUNCTION__)); return BCME_NOMEM; } DHD_INFO(("%s: about to create hp2p txcpl ring\n", __FUNCTION__)); ret = dhd_prot_ring_attach(dhd, prot->d2hring_hp2p_txcpl, "d2hhp2p_txcpl", dhd_bus_get_hp2p_ring_max_size(dhd->bus, TRUE), D2HRING_TXCMPLT_ITEMSIZE, ringid); if (ret != BCME_OK) { DHD_ERROR(("%s: couldn't alloc resources for hp2p txcpl ring\n", __FUNCTION__)); goto err2; } } else { /* for re-entry case, clear inited flag */ prot->d2hring_hp2p_txcpl->inited = FALSE; } if (prot->d2hring_hp2p_rxcpl == NULL) { prot->d2hring_hp2p_rxcpl = MALLOCZ(prot->osh, sizeof(msgbuf_ring_t)); if (prot->d2hring_hp2p_rxcpl == NULL) { DHD_ERROR(("%s: couldn't alloc memory for d2hring_hp2p_rxcpl\n", __FUNCTION__)); return BCME_NOMEM; } /* create the hp2p rx completion ring next to hp2p tx compl ring * ringid = id next to hp2p tx compl ring */ ringid = ringid + 1; DHD_INFO(("%s: about to create hp2p rxcpl ring\n", __FUNCTION__)); ret = dhd_prot_ring_attach(dhd, prot->d2hring_hp2p_rxcpl, "d2hhp2p_rxcpl", dhd_bus_get_hp2p_ring_max_size(dhd->bus, FALSE), D2HRING_RXCMPLT_ITEMSIZE, ringid); if (ret != BCME_OK) { DHD_ERROR(("%s: couldn't alloc resources for hp2p rxcpl ring\n", __FUNCTION__)); goto err1; } } else { /* for re-entry case, clear inited flag */ prot->d2hring_hp2p_rxcpl->inited = FALSE; } return ret; err1: MFREE(prot->osh, prot->d2hring_hp2p_rxcpl, sizeof(msgbuf_ring_t)); prot->d2hring_hp2p_rxcpl = NULL; err2: MFREE(prot->osh, prot->d2hring_hp2p_txcpl, sizeof(msgbuf_ring_t)); prot->d2hring_hp2p_txcpl = NULL; return ret; } /* dhd_check_create_hp2p_rings */ int dhd_prot_init_hp2p_rings(dhd_pub_t *dhd) { dhd_prot_t *prot = dhd->prot; int ret = BCME_OK; dhd->hp2p_ring_active = FALSE; if ((ret = dhd_check_create_hp2p_rings(dhd)) != BCME_OK) { DHD_ERROR(("%s: hp2p rings aren't created! \n", __FUNCTION__)); return ret; } if ((prot->d2hring_hp2p_txcpl->inited) || (prot->d2hring_hp2p_txcpl->create_pending)) { DHD_INFO(("hp2p tx completion ring was created!\n")); return ret; } DHD_TRACE(("trying to send create d2h hp2p txcpl ring: id %d\n", prot->d2hring_hp2p_txcpl->idx)); ret = dhd_send_d2h_ringcreate(dhd, prot->d2hring_hp2p_txcpl, BCMPCIE_D2H_RING_TYPE_HPP_TX_CPL, DHD_D2H_HPPRING_TXREQ_PKTID); if (ret != BCME_OK) return ret; prot->d2hring_hp2p_txcpl->seqnum = D2H_EPOCH_INIT_VAL; prot->d2hring_hp2p_txcpl->current_phase = BCMPCIE_CMNHDR_PHASE_BIT_INIT; if ((prot->d2hring_hp2p_rxcpl->inited) || (prot->d2hring_hp2p_rxcpl->create_pending)) { DHD_INFO(("hp2p rx completion ring was created!\n")); return ret; } DHD_TRACE(("trying to send create d2h hp2p rxcpl ring: id %d\n", prot->d2hring_hp2p_rxcpl->idx)); ret = dhd_send_d2h_ringcreate(dhd, prot->d2hring_hp2p_rxcpl, BCMPCIE_D2H_RING_TYPE_HPP_RX_CPL, DHD_D2H_HPPRING_RXREQ_PKTID); if (ret != BCME_OK) return ret; prot->d2hring_hp2p_rxcpl->seqnum = D2H_EPOCH_INIT_VAL; prot->d2hring_hp2p_rxcpl->current_phase = BCMPCIE_CMNHDR_PHASE_BIT_INIT; /* Note that there is no way to delete d2h or h2d ring deletion incase either fails, * so can not cleanup if one ring was created while the other failed */ return BCME_OK; } /* dhd_prot_init_hp2p_rings */ static void dhd_prot_detach_hp2p_rings(dhd_pub_t *dhd) { if (dhd->prot->d2hring_hp2p_txcpl) { dhd_prot_ring_detach(dhd, dhd->prot->d2hring_hp2p_txcpl); MFREE(dhd->prot->osh, dhd->prot->d2hring_hp2p_txcpl, sizeof(msgbuf_ring_t)); dhd->prot->d2hring_hp2p_txcpl = NULL; } if (dhd->prot->d2hring_hp2p_rxcpl) { dhd_prot_ring_detach(dhd, dhd->prot->d2hring_hp2p_rxcpl); MFREE(dhd->prot->osh, dhd->prot->d2hring_hp2p_rxcpl, sizeof(msgbuf_ring_t)); dhd->prot->d2hring_hp2p_rxcpl = NULL; } } #endif /* DHD_HP2P */ #ifdef EWP_EDL static int dhd_check_create_edl_rings(dhd_pub_t *dhd) { dhd_prot_t *prot = dhd->prot; int ret = BCME_ERROR; uint16 ringid; { /* dongle may increase max_submission_rings so keep * ringid at end of dynamic rings (re-use info ring cpl ring id) */ ringid = dhd->bus->max_tx_flowrings + (dhd->bus->max_submission_rings - dhd->bus->max_tx_flowrings) + BCMPCIE_H2D_COMMON_MSGRINGS + 1; } if (prot->d2hring_edl) { prot->d2hring_edl->inited = FALSE; return BCME_OK; /* dhd_prot_init rentry after a dhd_prot_reset */ } if (prot->d2hring_edl == NULL) { prot->d2hring_edl = MALLOCZ(prot->osh, sizeof(msgbuf_ring_t)); if (prot->d2hring_edl == NULL) { DHD_ERROR(("%s: couldn't alloc memory for d2hring_edl\n", __FUNCTION__)); return BCME_NOMEM; } DHD_ERROR(("%s: about to create EDL ring, ringid: %u \n", __FUNCTION__, ringid)); ret = dhd_prot_ring_attach(dhd, prot->d2hring_edl, "d2hring_edl", D2HRING_EDL_MAX_ITEM, D2HRING_EDL_ITEMSIZE, ringid); if (ret != BCME_OK) { DHD_ERROR(("%s: couldn't alloc resources for EDL ring\n", __FUNCTION__)); goto err; } } return ret; err: MFREE(prot->osh, prot->d2hring_edl, sizeof(msgbuf_ring_t)); prot->d2hring_edl = NULL; return ret; } /* dhd_check_create_btlog_rings */ int dhd_prot_init_edl_rings(dhd_pub_t *dhd) { dhd_prot_t *prot = dhd->prot; int ret = BCME_ERROR; if ((ret = dhd_check_create_edl_rings(dhd)) != BCME_OK) { DHD_ERROR(("%s: EDL rings aren't created! \n", __FUNCTION__)); return ret; } if ((prot->d2hring_edl->inited) || (prot->d2hring_edl->create_pending)) { DHD_INFO(("EDL completion ring was created!\n")); return ret; } DHD_ERROR(("trying to send create d2h edl ring: idx %d\n", prot->d2hring_edl->idx)); ret = dhd_send_d2h_ringcreate(dhd, prot->d2hring_edl, BCMPCIE_D2H_RING_TYPE_EDL, DHD_D2H_DBGRING_REQ_PKTID); if (ret != BCME_OK) return ret; prot->d2hring_edl->seqnum = D2H_EPOCH_INIT_VAL; prot->d2hring_edl->current_phase = BCMPCIE_CMNHDR_PHASE_BIT_INIT; return BCME_OK; } /* dhd_prot_init_btlog_rings */ static void dhd_prot_detach_edl_rings(dhd_pub_t *dhd) { if (dhd->prot->d2hring_edl) { dhd_prot_ring_detach(dhd, dhd->prot->d2hring_edl); MFREE(dhd->prot->osh, dhd->prot->d2hring_edl, sizeof(msgbuf_ring_t)); dhd->prot->d2hring_edl = NULL; } } #endif /* EWP_EDL */ /** * Initialize protocol: sync w/dongle state. * Sets dongle media info (iswl, drv_version, mac address). */ int dhd_sync_with_dongle(dhd_pub_t *dhd) { int ret = 0; wlc_rev_info_t revinfo; char buf[128]; dhd_prot_t *prot = dhd->prot; DHD_TRACE(("%s: Enter\n", __FUNCTION__)); dhd_os_set_ioctl_resp_timeout(IOCTL_RESP_TIMEOUT); /* Post ts buffer after shim layer is attached */ ret = dhd_msgbuf_rxbuf_post_ts_bufs(dhd); #ifdef DHD_FW_COREDUMP /* Check the memdump capability */ dhd_get_memdump_info(dhd); #endif /* DHD_FW_COREDUMP */ #ifdef BCMASSERT_LOG dhd_get_assert_info(dhd); #endif /* BCMASSERT_LOG */ /* Get the device rev info */ memset(&revinfo, 0, sizeof(revinfo)); ret = dhd_wl_ioctl_cmd(dhd, WLC_GET_REVINFO, &revinfo, sizeof(revinfo), FALSE, 0); if (ret < 0) { DHD_ERROR(("%s: GET revinfo FAILED\n", __FUNCTION__)); goto done; } DHD_ERROR(("%s: GET_REVINFO device 0x%x, vendor 0x%x, chipnum 0x%x\n", __FUNCTION__, revinfo.deviceid, revinfo.vendorid, revinfo.chipnum)); /* Get the RxBuf post size */ memset(buf, 0, sizeof(buf)); bcm_mkiovar("rxbufpost_sz", NULL, 0, buf, sizeof(buf)); ret = dhd_wl_ioctl_cmd(dhd, WLC_GET_VAR, buf, sizeof(buf), FALSE, 0); if (ret < 0) { DHD_ERROR(("%s: GET RxBuf post FAILED, default to %d\n", __FUNCTION__, DHD_FLOWRING_RX_BUFPOST_PKTSZ)); prot->rxbufpost_sz = DHD_FLOWRING_RX_BUFPOST_PKTSZ; } else { memcpy_s(&(prot->rxbufpost_sz), sizeof(prot->rxbufpost_sz), buf, sizeof(uint16)); if (prot->rxbufpost_sz > DHD_FLOWRING_RX_BUFPOST_PKTSZ_MAX) { DHD_ERROR(("%s: Invalid RxBuf post size : %d, default to %d\n", __FUNCTION__, prot->rxbufpost_sz, DHD_FLOWRING_RX_BUFPOST_PKTSZ)); prot->rxbufpost_sz = DHD_FLOWRING_RX_BUFPOST_PKTSZ; } else { DHD_ERROR(("%s: RxBuf Post : %d\n", __FUNCTION__, prot->rxbufpost_sz)); } } /* Post buffers for packet reception */ dhd_msgbuf_rxbuf_post(dhd, FALSE); /* alloc pkt ids */ DHD_SSSR_DUMP_INIT(dhd); dhd_process_cid_mac(dhd, TRUE); ret = dhd_preinit_ioctls(dhd); dhd_process_cid_mac(dhd, FALSE); #if defined(DHD_H2D_LOG_TIME_SYNC) #ifdef DHD_HP2P if (FW_SUPPORTED(dhd, h2dlogts) || dhd->hp2p_capable) { if (dhd->hp2p_enable) { dhd->dhd_rte_time_sync_ms = DHD_H2D_LOG_TIME_STAMP_MATCH / 40; } else { dhd->dhd_rte_time_sync_ms = DHD_H2D_LOG_TIME_STAMP_MATCH; } #else if (FW_SUPPORTED(dhd, h2dlogts)) { dhd->dhd_rte_time_sync_ms = DHD_H2D_LOG_TIME_STAMP_MATCH; #endif // endif dhd->bus->dhd_rte_time_sync_count = OSL_SYSUPTIME_US(); /* This is during initialization. */ dhd_h2d_log_time_sync(dhd); } else { dhd->dhd_rte_time_sync_ms = 0; } #endif /* DHD_H2D_LOG_TIME_SYNC || DHD_HP2P */ /* Always assumes wl for now */ dhd->iswl = TRUE; done: return ret; } /* dhd_sync_with_dongle */ #define DHD_DBG_SHOW_METADATA 0 #if DHD_DBG_SHOW_METADATA static void BCMFASTPATH dhd_prot_print_metadata(dhd_pub_t *dhd, void *ptr, int len) { uint8 tlv_t; uint8 tlv_l; uint8 *tlv_v = (uint8 *)ptr; if (len <= BCMPCIE_D2H_METADATA_HDRLEN) return; len -= BCMPCIE_D2H_METADATA_HDRLEN; tlv_v += BCMPCIE_D2H_METADATA_HDRLEN; while (len > TLV_HDR_LEN) { tlv_t = tlv_v[TLV_TAG_OFF]; tlv_l = tlv_v[TLV_LEN_OFF]; len -= TLV_HDR_LEN; tlv_v += TLV_HDR_LEN; if (len < tlv_l) break; if ((tlv_t == 0) || (tlv_t == WLFC_CTL_TYPE_FILLER)) break; switch (tlv_t) { case WLFC_CTL_TYPE_TXSTATUS: { uint32 txs; memcpy(&txs, tlv_v, sizeof(uint32)); if (tlv_l < (sizeof(wl_txstatus_additional_info_t) + sizeof(uint32))) { printf("METADATA TX_STATUS: %08x\n", txs); } else { wl_txstatus_additional_info_t tx_add_info; memcpy(&tx_add_info, tlv_v + sizeof(uint32), sizeof(wl_txstatus_additional_info_t)); printf("METADATA TX_STATUS: %08x WLFCTS[%04x | %08x - %08x - %08x]" " rate = %08x tries = %d - %d\n", txs, tx_add_info.seq, tx_add_info.entry_ts, tx_add_info.enq_ts, tx_add_info.last_ts, tx_add_info.rspec, tx_add_info.rts_cnt, tx_add_info.tx_cnt); } } break; case WLFC_CTL_TYPE_RSSI: { if (tlv_l == 1) printf("METADATA RX_RSSI: rssi = %d\n", *tlv_v); else printf("METADATA RX_RSSI[%04x]: rssi = %d snr = %d\n", (*(tlv_v + 3) << 8) | *(tlv_v + 2), (int8)(*tlv_v), *(tlv_v + 1)); } break; case WLFC_CTL_TYPE_FIFO_CREDITBACK: bcm_print_bytes("METADATA FIFO_CREDITBACK", tlv_v, tlv_l); break; case WLFC_CTL_TYPE_TX_ENTRY_STAMP: bcm_print_bytes("METADATA TX_ENTRY", tlv_v, tlv_l); break; case WLFC_CTL_TYPE_RX_STAMP: { struct { uint32 rspec; uint32 bus_time; uint32 wlan_time; } rx_tmstamp; memcpy(&rx_tmstamp, tlv_v, sizeof(rx_tmstamp)); printf("METADATA RX TIMESTMAP: WLFCTS[%08x - %08x] rate = %08x\n", rx_tmstamp.wlan_time, rx_tmstamp.bus_time, rx_tmstamp.rspec); } break; case WLFC_CTL_TYPE_TRANS_ID: bcm_print_bytes("METADATA TRANS_ID", tlv_v, tlv_l); break; case WLFC_CTL_TYPE_COMP_TXSTATUS: bcm_print_bytes("METADATA COMP_TXSTATUS", tlv_v, tlv_l); break; default: bcm_print_bytes("METADATA UNKNOWN", tlv_v, tlv_l); break; } len -= tlv_l; tlv_v += tlv_l; } } #endif /* DHD_DBG_SHOW_METADATA */ static INLINE void BCMFASTPATH dhd_prot_packet_free(dhd_pub_t *dhd, void *pkt, uint8 pkttype, bool send) { if (pkt) { if (pkttype == PKTTYPE_IOCTL_RX || pkttype == PKTTYPE_EVENT_RX || pkttype == PKTTYPE_INFO_RX || pkttype == PKTTYPE_TSBUF_RX) { #ifdef DHD_USE_STATIC_CTRLBUF PKTFREE_STATIC(dhd->osh, pkt, send); #else PKTFREE(dhd->osh, pkt, send); #endif /* DHD_USE_STATIC_CTRLBUF */ } else { PKTFREE(dhd->osh, pkt, send); } } } /** * dhd_prot_packet_get should be called only for items having pktid_ctrl_map handle * and all the bottom most functions like dhd_pktid_map_free hold separate DHD_PKTID_LOCK * to ensure thread safety, so no need to hold any locks for this function */ static INLINE void * BCMFASTPATH dhd_prot_packet_get(dhd_pub_t *dhd, uint32 pktid, uint8 pkttype, bool free_pktid) { void *PKTBUF; dmaaddr_t pa; uint32 len; void *dmah; void *secdma; #ifdef DHD_PCIE_PKTID if (free_pktid) { PKTBUF = DHD_PKTID_TO_NATIVE(dhd, dhd->prot->pktid_ctrl_map, pktid, pa, len, dmah, secdma, pkttype); } else { PKTBUF = DHD_PKTID_TO_NATIVE_RSV(dhd, dhd->prot->pktid_ctrl_map, pktid, pa, len, dmah, secdma, pkttype); } #else PKTBUF = DHD_PKTID_TO_NATIVE(dhd, dhd->prot->pktid_ctrl_map, pktid, pa, len, dmah, secdma, pkttype); #endif /* DHD_PCIE_PKTID */ if (PKTBUF) { { if (SECURE_DMA_ENAB(dhd->osh)) SECURE_DMA_UNMAP(dhd->osh, pa, (uint) len, DMA_RX, 0, dmah, secdma, 0); else DMA_UNMAP(dhd->osh, pa, (uint) len, DMA_RX, 0, dmah); #ifdef DMAMAP_STATS switch (pkttype) { #ifndef IOCTLRESP_USE_CONSTMEM case PKTTYPE_IOCTL_RX: dhd->dma_stats.ioctl_rx--; dhd->dma_stats.ioctl_rx_sz -= len; break; #endif /* IOCTLRESP_USE_CONSTMEM */ case PKTTYPE_EVENT_RX: dhd->dma_stats.event_rx--; dhd->dma_stats.event_rx_sz -= len; break; case PKTTYPE_INFO_RX: dhd->dma_stats.info_rx--; dhd->dma_stats.info_rx_sz -= len; break; case PKTTYPE_TSBUF_RX: dhd->dma_stats.tsbuf_rx--; dhd->dma_stats.tsbuf_rx_sz -= len; break; } #endif /* DMAMAP_STATS */ } } return PKTBUF; } #ifdef IOCTLRESP_USE_CONSTMEM static INLINE void BCMFASTPATH dhd_prot_ioctl_ret_buffer_get(dhd_pub_t *dhd, uint32 pktid, dhd_dma_buf_t *retbuf) { memset(retbuf, 0, sizeof(dhd_dma_buf_t)); retbuf->va = DHD_PKTID_TO_NATIVE(dhd, dhd->prot->pktid_map_handle_ioctl, pktid, retbuf->pa, retbuf->len, retbuf->dmah, retbuf->secdma, PKTTYPE_IOCTL_RX); return; } #endif // endif static void BCMFASTPATH dhd_msgbuf_rxbuf_post(dhd_pub_t *dhd, bool use_rsv_pktid) { dhd_prot_t *prot = dhd->prot; int16 fillbufs; uint16 cnt = 256; int retcount = 0; fillbufs = prot->max_rxbufpost - prot->rxbufpost; while (fillbufs >= RX_BUF_BURST) { cnt--; if (cnt == 0) { /* find a better way to reschedule rx buf post if space not available */ DHD_ERROR(("h2d rx post ring not available to post host buffers \n")); DHD_ERROR(("Current posted host buf count %d \n", prot->rxbufpost)); break; } /* Post in a burst of 32 buffers at a time */ fillbufs = MIN(fillbufs, RX_BUF_BURST); /* Post buffers */ retcount = dhd_prot_rxbuf_post(dhd, fillbufs, use_rsv_pktid); if (retcount >= 0) { prot->rxbufpost += (uint16)retcount; #ifdef DHD_LB_RXC /* dhd_prot_rxbuf_post returns the number of buffers posted */ DHD_LB_STATS_UPDATE_RXC_HISTO(dhd, retcount); #endif /* DHD_LB_RXC */ /* how many more to post */ fillbufs = prot->max_rxbufpost - prot->rxbufpost; } else { /* Make sure we don't run loop any further */ fillbufs = 0; } } } /** Post 'count' no of rx buffers to dongle */ static int BCMFASTPATH dhd_prot_rxbuf_post(dhd_pub_t *dhd, uint16 count, bool use_rsv_pktid) { void *p, **pktbuf; uint8 *rxbuf_post_tmp; host_rxbuf_post_t *rxbuf_post; void *msg_start; dmaaddr_t pa, *pktbuf_pa; uint32 *pktlen; uint16 i = 0, alloced = 0; unsigned long flags; uint32 pktid; dhd_prot_t *prot = dhd->prot; msgbuf_ring_t *ring = &prot->h2dring_rxp_subn; void *lcl_buf; uint16 lcl_buf_size; uint16 pktsz = prot->rxbufpost_sz; /* allocate a local buffer to store pkt buffer va, pa and length */ lcl_buf_size = (sizeof(void *) + sizeof(dmaaddr_t) + sizeof(uint32)) * RX_BUF_BURST; lcl_buf = MALLOC(dhd->osh, lcl_buf_size); if (!lcl_buf) { DHD_ERROR(("%s: local scratch buffer allocation failed\n", __FUNCTION__)); return 0; } pktbuf = lcl_buf; pktbuf_pa = (dmaaddr_t *)((uint8 *)pktbuf + sizeof(void *) * RX_BUF_BURST); pktlen = (uint32 *)((uint8 *)pktbuf_pa + sizeof(dmaaddr_t) * RX_BUF_BURST); for (i = 0; i < count; i++) { if ((p = PKTGET(dhd->osh, pktsz, FALSE)) == NULL) { DHD_ERROR(("%s:%d: PKTGET for rxbuf failed\n", __FUNCTION__, __LINE__)); dhd->rx_pktgetfail++; break; } pktlen[i] = PKTLEN(dhd->osh, p); if (SECURE_DMA_ENAB(dhd->osh)) { pa = SECURE_DMA_MAP(dhd->osh, PKTDATA(dhd->osh, p), pktlen[i], DMA_RX, p, 0, ring->dma_buf.secdma, 0); } #ifndef BCM_SECURE_DMA else pa = DMA_MAP(dhd->osh, PKTDATA(dhd->osh, p), pktlen[i], DMA_RX, p, 0); #endif /* #ifndef BCM_SECURE_DMA */ if (PHYSADDRISZERO(pa)) { PKTFREE(dhd->osh, p, FALSE); DHD_ERROR(("Invalid phyaddr 0\n")); ASSERT(0); break; } #ifdef DMAMAP_STATS dhd->dma_stats.rxdata++; dhd->dma_stats.rxdata_sz += pktlen[i]; #endif /* DMAMAP_STATS */ PKTPULL(dhd->osh, p, prot->rx_metadata_offset); pktlen[i] = PKTLEN(dhd->osh, p); pktbuf[i] = p; pktbuf_pa[i] = pa; } /* only post what we have */ count = i; /* grab the ring lock to allocate pktid and post on ring */ DHD_RING_LOCK(ring->ring_lock, flags); /* Claim space for exactly 'count' no of messages, for mitigation purpose */ msg_start = (void *) dhd_prot_alloc_ring_space(dhd, ring, count, &alloced, TRUE); if (msg_start == NULL) { DHD_INFO(("%s:%d: Rxbufpost Msgbuf Not available\n", __FUNCTION__, __LINE__)); DHD_RING_UNLOCK(ring->ring_lock, flags); goto cleanup; } /* if msg_start != NULL, we should have alloced space for atleast 1 item */ ASSERT(alloced > 0); rxbuf_post_tmp = (uint8*)msg_start; for (i = 0; i < alloced; i++) { rxbuf_post = (host_rxbuf_post_t *)rxbuf_post_tmp; p = pktbuf[i]; pa = pktbuf_pa[i]; #if defined(DHD_LB_RXC) if (use_rsv_pktid == TRUE) { bcm_workq_t *workq = &prot->rx_compl_cons; int elem_ix = bcm_ring_cons(WORKQ_RING(workq), DHD_LB_WORKQ_SZ); if (elem_ix == BCM_RING_EMPTY) { DHD_INFO(("%s rx_compl_cons ring is empty\n", __FUNCTION__)); pktid = DHD_PKTID_INVALID; goto alloc_pkt_id; } else { uint32 *elem = WORKQ_ELEMENT(uint32, workq, elem_ix); pktid = *elem; } rxbuf_post->cmn_hdr.request_id = htol32(pktid); /* Now populate the previous locker with valid information */ if (pktid != DHD_PKTID_INVALID) { DHD_NATIVE_TO_PKTID_SAVE(dhd, dhd->prot->pktid_rx_map, p, pktid, pa, pktlen[i], DMA_RX, NULL, NULL, PKTTYPE_DATA_RX); } } else #endif /* ! DHD_LB_RXC */ { #if defined(DHD_LB_RXC) alloc_pkt_id: #endif /* DHD_LB_RXC */ pktid = DHD_NATIVE_TO_PKTID(dhd, dhd->prot->pktid_rx_map, p, pa, pktlen[i], DMA_RX, NULL, ring->dma_buf.secdma, PKTTYPE_DATA_RX); #if defined(DHD_PCIE_PKTID) if (pktid == DHD_PKTID_INVALID) { break; } #endif /* DHD_PCIE_PKTID */ } /* Common msg header */ rxbuf_post->cmn_hdr.msg_type = MSG_TYPE_RXBUF_POST; rxbuf_post->cmn_hdr.if_id = 0; rxbuf_post->cmn_hdr.epoch = ring->seqnum % H2D_EPOCH_MODULO; rxbuf_post->cmn_hdr.flags = ring->current_phase; ring->seqnum++; rxbuf_post->data_buf_len = htol16((uint16)pktlen[i]); rxbuf_post->data_buf_addr.high_addr = htol32(PHYSADDRHI(pa)); rxbuf_post->data_buf_addr.low_addr = htol32(PHYSADDRLO(pa) + prot->rx_metadata_offset); if (prot->rx_metadata_offset) { rxbuf_post->metadata_buf_len = prot->rx_metadata_offset; rxbuf_post->metadata_buf_addr.high_addr = htol32(PHYSADDRHI(pa)); rxbuf_post->metadata_buf_addr.low_addr = htol32(PHYSADDRLO(pa)); } else { rxbuf_post->metadata_buf_len = 0; rxbuf_post->metadata_buf_addr.high_addr = 0; rxbuf_post->metadata_buf_addr.low_addr = 0; } #ifdef DHD_PKTID_AUDIT_RING DHD_PKTID_AUDIT(dhd, prot->pktid_rx_map, pktid, DHD_DUPLICATE_ALLOC); #endif /* DHD_PKTID_AUDIT_RING */ rxbuf_post->cmn_hdr.request_id = htol32(pktid); /* Move rxbuf_post_tmp to next item */ rxbuf_post_tmp = rxbuf_post_tmp + ring->item_len; #ifdef DHD_LBUF_AUDIT PKTAUDIT(dhd->osh, p); #endif // endif } if (i < alloced) { if (ring->wr < (alloced - i)) ring->wr = ring->max_items - (alloced - i); else ring->wr -= (alloced - i); if (ring->wr == 0) { DHD_INFO(("%s: flipping the phase now\n", ring->name)); ring->current_phase = ring->current_phase ? 0 : BCMPCIE_CMNHDR_PHASE_BIT_INIT; } alloced = i; } /* update ring's WR index and ring doorbell to dongle */ if (alloced > 0) { dhd_prot_ring_write_complete(dhd, ring, msg_start, alloced); } DHD_RING_UNLOCK(ring->ring_lock, flags); cleanup: for (i = alloced; i < count; i++) { p = pktbuf[i]; pa = pktbuf_pa[i]; if (SECURE_DMA_ENAB(dhd->osh)) SECURE_DMA_UNMAP(dhd->osh, pa, pktlen[i], DMA_RX, 0, DHD_DMAH_NULL, ring->dma_buf.secdma, 0); else DMA_UNMAP(dhd->osh, pa, pktlen[i], DMA_RX, 0, DHD_DMAH_NULL); PKTFREE(dhd->osh, p, FALSE); } MFREE(dhd->osh, lcl_buf, lcl_buf_size); return alloced; } /* dhd_prot_rxbufpost */ static int dhd_prot_infobufpost(dhd_pub_t *dhd, msgbuf_ring_t *ring) { unsigned long flags; uint32 pktid; dhd_prot_t *prot = dhd->prot; uint16 alloced = 0; uint16 pktsz = DHD_INFOBUF_RX_BUFPOST_PKTSZ; uint32 pktlen; info_buf_post_msg_t *infobuf_post; uint8 *infobuf_post_tmp; void *p; void* msg_start; uint8 i = 0; dmaaddr_t pa; int16 count = 0; if (ring == NULL) return 0; if (ring->inited != TRUE) return 0; if (ring == dhd->prot->h2dring_info_subn) { if (prot->max_infobufpost == 0) return 0; count = prot->max_infobufpost - prot->infobufpost; } else { DHD_ERROR(("Unknown ring\n")); return 0; } if (count <= 0) { DHD_INFO(("%s: Cannot post more than max info resp buffers\n", __FUNCTION__)); return 0; } /* grab the ring lock to allocate pktid and post on ring */ DHD_RING_LOCK(ring->ring_lock, flags); /* Claim space for exactly 'count' no of messages, for mitigation purpose */ msg_start = (void *) dhd_prot_alloc_ring_space(dhd, ring, count, &alloced, FALSE); if (msg_start == NULL) { DHD_INFO(("%s:%d: infobufpost Msgbuf Not available\n", __FUNCTION__, __LINE__)); DHD_RING_UNLOCK(ring->ring_lock, flags); return -1; } /* if msg_start != NULL, we should have alloced space for atleast 1 item */ ASSERT(alloced > 0); infobuf_post_tmp = (uint8*) msg_start; /* loop through each allocated message in the host ring */ for (i = 0; i < alloced; i++) { infobuf_post = (info_buf_post_msg_t *) infobuf_post_tmp; /* Create a rx buffer */ #ifdef DHD_USE_STATIC_CTRLBUF p = PKTGET_STATIC(dhd->osh, pktsz, FALSE); #else p = PKTGET(dhd->osh, pktsz, FALSE); #endif /* DHD_USE_STATIC_CTRLBUF */ if (p == NULL) { DHD_ERROR(("%s:%d: PKTGET for infobuf failed\n", __FUNCTION__, __LINE__)); dhd->rx_pktgetfail++; break; } pktlen = PKTLEN(dhd->osh, p); if (SECURE_DMA_ENAB(dhd->osh)) { pa = SECURE_DMA_MAP(dhd->osh, PKTDATA(dhd->osh, p), pktlen, DMA_RX, p, 0, ring->dma_buf.secdma, 0); } #ifndef BCM_SECURE_DMA else pa = DMA_MAP(dhd->osh, PKTDATA(dhd->osh, p), pktlen, DMA_RX, p, 0); #endif /* #ifndef BCM_SECURE_DMA */ if (PHYSADDRISZERO(pa)) { if (SECURE_DMA_ENAB(dhd->osh)) { SECURE_DMA_UNMAP(dhd->osh, pa, pktlen, DMA_RX, 0, DHD_DMAH_NULL, ring->dma_buf.secdma, 0); } else DMA_UNMAP(dhd->osh, pa, pktlen, DMA_RX, 0, DHD_DMAH_NULL); #ifdef DHD_USE_STATIC_CTRLBUF PKTFREE_STATIC(dhd->osh, p, FALSE); #else PKTFREE(dhd->osh, p, FALSE); #endif /* DHD_USE_STATIC_CTRLBUF */ DHD_ERROR(("Invalid phyaddr 0\n")); ASSERT(0); break; } #ifdef DMAMAP_STATS dhd->dma_stats.info_rx++; dhd->dma_stats.info_rx_sz += pktlen; #endif /* DMAMAP_STATS */ pktlen = PKTLEN(dhd->osh, p); /* Common msg header */ infobuf_post->cmn_hdr.msg_type = MSG_TYPE_INFO_BUF_POST; infobuf_post->cmn_hdr.if_id = 0; infobuf_post->cmn_hdr.epoch = ring->seqnum % H2D_EPOCH_MODULO; infobuf_post->cmn_hdr.flags = ring->current_phase; ring->seqnum++; pktid = DHD_NATIVE_TO_PKTID(dhd, dhd->prot->pktid_ctrl_map, p, pa, pktlen, DMA_RX, NULL, ring->dma_buf.secdma, PKTTYPE_INFO_RX); #if defined(DHD_PCIE_PKTID) if (pktid == DHD_PKTID_INVALID) { if (SECURE_DMA_ENAB(dhd->osh)) { SECURE_DMA_UNMAP(dhd->osh, pa, pktlen, DMA_RX, 0, 0, ring->dma_buf.secdma, 0); } else DMA_UNMAP(dhd->osh, pa, pktlen, DMA_RX, 0, 0); #ifdef DHD_USE_STATIC_CTRLBUF PKTFREE_STATIC(dhd->osh, p, FALSE); #else PKTFREE(dhd->osh, p, FALSE); #endif /* DHD_USE_STATIC_CTRLBUF */ DHD_ERROR_RLMT(("%s: Pktid pool depleted.\n", __FUNCTION__)); break; } #endif /* DHD_PCIE_PKTID */ infobuf_post->host_buf_len = htol16((uint16)pktlen); infobuf_post->host_buf_addr.high_addr = htol32(PHYSADDRHI(pa)); infobuf_post->host_buf_addr.low_addr = htol32(PHYSADDRLO(pa)); #ifdef DHD_PKTID_AUDIT_RING DHD_PKTID_AUDIT(dhd, prot->pktid_ctrl_map, pktid, DHD_DUPLICATE_ALLOC); #endif /* DHD_PKTID_AUDIT_RING */ DHD_INFO(("ID %d, low_addr 0x%08x, high_addr 0x%08x\n", infobuf_post->cmn_hdr.request_id, infobuf_post->host_buf_addr.low_addr, infobuf_post->host_buf_addr.high_addr)); infobuf_post->cmn_hdr.request_id = htol32(pktid); /* Move rxbuf_post_tmp to next item */ infobuf_post_tmp = infobuf_post_tmp + ring->item_len; #ifdef DHD_LBUF_AUDIT PKTAUDIT(dhd->osh, p); #endif // endif } if (i < alloced) { if (ring->wr < (alloced - i)) ring->wr = ring->max_items - (alloced - i); else ring->wr -= (alloced - i); alloced = i; if (alloced && ring->wr == 0) { DHD_INFO(("%s: flipping the phase now\n", ring->name)); ring->current_phase = ring->current_phase ? 0 : BCMPCIE_CMNHDR_PHASE_BIT_INIT; } } /* Update the write pointer in TCM & ring bell */ if (alloced > 0) { if (ring == dhd->prot->h2dring_info_subn) { prot->infobufpost += alloced; } dhd_prot_ring_write_complete(dhd, ring, msg_start, alloced); } DHD_RING_UNLOCK(ring->ring_lock, flags); return alloced; } /* dhd_prot_infobufpost */ #ifdef IOCTLRESP_USE_CONSTMEM static int alloc_ioctl_return_buffer(dhd_pub_t *dhd, dhd_dma_buf_t *retbuf) { int err; memset(retbuf, 0, sizeof(dhd_dma_buf_t)); if ((err = dhd_dma_buf_alloc(dhd, retbuf, IOCT_RETBUF_SIZE)) != BCME_OK) { DHD_ERROR(("%s: dhd_dma_buf_alloc err %d\n", __FUNCTION__, err)); ASSERT(0); return BCME_NOMEM; } return BCME_OK; } static void free_ioctl_return_buffer(dhd_pub_t *dhd, dhd_dma_buf_t *retbuf) { /* retbuf (declared on stack) not fully populated ... */ if (retbuf->va) { uint32 dma_pad; dma_pad = (IOCT_RETBUF_SIZE % DHD_DMA_PAD) ? DHD_DMA_PAD : 0; retbuf->len = IOCT_RETBUF_SIZE; retbuf->_alloced = retbuf->len + dma_pad; } dhd_dma_buf_free(dhd, retbuf); return; } #endif /* IOCTLRESP_USE_CONSTMEM */ static int dhd_prot_rxbufpost_ctrl(dhd_pub_t *dhd, uint8 msg_type) { void *p; uint16 pktsz; ioctl_resp_evt_buf_post_msg_t *rxbuf_post; dmaaddr_t pa; uint32 pktlen; dhd_prot_t *prot = dhd->prot; uint16 alloced = 0; unsigned long flags; dhd_dma_buf_t retbuf; void *dmah = NULL; uint32 pktid; void *map_handle; msgbuf_ring_t *ring = &prot->h2dring_ctrl_subn; bool non_ioctl_resp_buf = 0; dhd_pkttype_t buf_type; if (dhd->busstate == DHD_BUS_DOWN) { DHD_ERROR(("%s: bus is already down.\n", __FUNCTION__)); return -1; } memset(&retbuf, 0, sizeof(dhd_dma_buf_t)); if (msg_type == MSG_TYPE_IOCTLRESP_BUF_POST) buf_type = PKTTYPE_IOCTL_RX; else if (msg_type == MSG_TYPE_EVENT_BUF_POST) buf_type = PKTTYPE_EVENT_RX; else if (msg_type == MSG_TYPE_TIMSTAMP_BUFPOST) buf_type = PKTTYPE_TSBUF_RX; else { DHD_ERROR(("invalid message type to be posted to Ctrl ring %d\n", msg_type)); return -1; } if ((msg_type == MSG_TYPE_EVENT_BUF_POST) || (msg_type == MSG_TYPE_TIMSTAMP_BUFPOST)) non_ioctl_resp_buf = TRUE; else non_ioctl_resp_buf = FALSE; if (non_ioctl_resp_buf) { /* Allocate packet for not ioctl resp buffer post */ pktsz = DHD_FLOWRING_RX_BUFPOST_PKTSZ; } else { /* Allocate packet for ctrl/ioctl buffer post */ pktsz = DHD_FLOWRING_IOCTL_BUFPOST_PKTSZ; } #ifdef IOCTLRESP_USE_CONSTMEM if (!non_ioctl_resp_buf) { if (alloc_ioctl_return_buffer(dhd, &retbuf) != BCME_OK) { DHD_ERROR(("Could not allocate IOCTL response buffer\n")); return -1; } ASSERT(retbuf.len == IOCT_RETBUF_SIZE); p = retbuf.va; pktlen = retbuf.len; pa = retbuf.pa; dmah = retbuf.dmah; } else #endif /* IOCTLRESP_USE_CONSTMEM */ { #ifdef DHD_USE_STATIC_CTRLBUF p = PKTGET_STATIC(dhd->osh, pktsz, FALSE); #else p = PKTGET(dhd->osh, pktsz, FALSE); #endif /* DHD_USE_STATIC_CTRLBUF */ if (p == NULL) { DHD_ERROR(("%s:%d: PKTGET for %s buf failed\n", __FUNCTION__, __LINE__, non_ioctl_resp_buf ? "EVENT" : "IOCTL RESP")); dhd->rx_pktgetfail++; return -1; } pktlen = PKTLEN(dhd->osh, p); if (SECURE_DMA_ENAB(dhd->osh)) { pa = SECURE_DMA_MAP(dhd->osh, PKTDATA(dhd->osh, p), pktlen, DMA_RX, p, 0, ring->dma_buf.secdma, 0); } #ifndef BCM_SECURE_DMA else pa = DMA_MAP(dhd->osh, PKTDATA(dhd->osh, p), pktlen, DMA_RX, p, 0); #endif /* #ifndef BCM_SECURE_DMA */ if (PHYSADDRISZERO(pa)) { DHD_ERROR(("Invalid physaddr 0\n")); ASSERT(0); goto free_pkt_return; } #ifdef DMAMAP_STATS switch (buf_type) { #ifndef IOCTLRESP_USE_CONSTMEM case PKTTYPE_IOCTL_RX: dhd->dma_stats.ioctl_rx++; dhd->dma_stats.ioctl_rx_sz += pktlen; break; #endif /* !IOCTLRESP_USE_CONSTMEM */ case PKTTYPE_EVENT_RX: dhd->dma_stats.event_rx++; dhd->dma_stats.event_rx_sz += pktlen; break; case PKTTYPE_TSBUF_RX: dhd->dma_stats.tsbuf_rx++; dhd->dma_stats.tsbuf_rx_sz += pktlen; break; default: break; } #endif /* DMAMAP_STATS */ } /* grab the ring lock to allocate pktid and post on ring */ DHD_RING_LOCK(ring->ring_lock, flags); rxbuf_post = (ioctl_resp_evt_buf_post_msg_t *) dhd_prot_alloc_ring_space(dhd, ring, 1, &alloced, FALSE); if (rxbuf_post == NULL) { DHD_RING_UNLOCK(ring->ring_lock, flags); DHD_ERROR(("%s:%d: Ctrl submit Msgbuf Not available to post buffer \n", __FUNCTION__, __LINE__)); #ifdef IOCTLRESP_USE_CONSTMEM if (non_ioctl_resp_buf) #endif /* IOCTLRESP_USE_CONSTMEM */ { if (SECURE_DMA_ENAB(dhd->osh)) { SECURE_DMA_UNMAP(dhd->osh, pa, pktlen, DMA_RX, 0, DHD_DMAH_NULL, ring->dma_buf.secdma, 0); } else { DMA_UNMAP(dhd->osh, pa, pktlen, DMA_RX, 0, DHD_DMAH_NULL); } } goto free_pkt_return; } /* CMN msg header */ rxbuf_post->cmn_hdr.msg_type = msg_type; #ifdef IOCTLRESP_USE_CONSTMEM if (!non_ioctl_resp_buf) { map_handle = dhd->prot->pktid_map_handle_ioctl; pktid = DHD_NATIVE_TO_PKTID(dhd, map_handle, p, pa, pktlen, DMA_RX, dmah, ring->dma_buf.secdma, buf_type); } else #endif /* IOCTLRESP_USE_CONSTMEM */ { map_handle = dhd->prot->pktid_ctrl_map; pktid = DHD_NATIVE_TO_PKTID(dhd, map_handle, p, pa, pktlen, DMA_RX, dmah, ring->dma_buf.secdma, buf_type); } if (pktid == DHD_PKTID_INVALID) { if (ring->wr == 0) { ring->wr = ring->max_items - 1; } else { ring->wr--; if (ring->wr == 0) { ring->current_phase = ring->current_phase ? 0 : BCMPCIE_CMNHDR_PHASE_BIT_INIT; } } DHD_RING_UNLOCK(ring->ring_lock, flags); DMA_UNMAP(dhd->osh, pa, pktlen, DMA_RX, 0, DHD_DMAH_NULL); DHD_ERROR_RLMT(("%s: Pktid pool depleted.\n", __FUNCTION__)); goto free_pkt_return; } #ifdef DHD_PKTID_AUDIT_RING DHD_PKTID_AUDIT(dhd, map_handle, pktid, DHD_DUPLICATE_ALLOC); #endif /* DHD_PKTID_AUDIT_RING */ rxbuf_post->cmn_hdr.request_id = htol32(pktid); rxbuf_post->cmn_hdr.if_id = 0; rxbuf_post->cmn_hdr.epoch = ring->seqnum % H2D_EPOCH_MODULO; ring->seqnum++; rxbuf_post->cmn_hdr.flags = ring->current_phase; #if defined(DHD_PCIE_PKTID) if (rxbuf_post->cmn_hdr.request_id == DHD_PKTID_INVALID) { if (ring->wr == 0) { ring->wr = ring->max_items - 1; } else { if (ring->wr == 0) { ring->current_phase = ring->current_phase ? 0 : BCMPCIE_CMNHDR_PHASE_BIT_INIT; } } DHD_RING_UNLOCK(ring->ring_lock, flags); #ifdef IOCTLRESP_USE_CONSTMEM if (non_ioctl_resp_buf) #endif /* IOCTLRESP_USE_CONSTMEM */ { if (SECURE_DMA_ENAB(dhd->osh)) { SECURE_DMA_UNMAP(dhd->osh, pa, pktlen, DMA_RX, 0, DHD_DMAH_NULL, ring->dma_buf.secdma, 0); } else DMA_UNMAP(dhd->osh, pa, pktlen, DMA_RX, 0, DHD_DMAH_NULL); } goto free_pkt_return; } #endif /* DHD_PCIE_PKTID */ #ifndef IOCTLRESP_USE_CONSTMEM rxbuf_post->host_buf_len = htol16((uint16)PKTLEN(dhd->osh, p)); #else rxbuf_post->host_buf_len = htol16((uint16)pktlen); #endif /* IOCTLRESP_USE_CONSTMEM */ rxbuf_post->host_buf_addr.high_addr = htol32(PHYSADDRHI(pa)); rxbuf_post->host_buf_addr.low_addr = htol32(PHYSADDRLO(pa)); #ifdef DHD_LBUF_AUDIT if (non_ioctl_resp_buf) PKTAUDIT(dhd->osh, p); #endif // endif /* update ring's WR index and ring doorbell to dongle */ dhd_prot_ring_write_complete(dhd, ring, rxbuf_post, 1); DHD_RING_UNLOCK(ring->ring_lock, flags); return 1; free_pkt_return: if (!non_ioctl_resp_buf) { #ifdef IOCTLRESP_USE_CONSTMEM free_ioctl_return_buffer(dhd, &retbuf); #else dhd_prot_packet_free(dhd, p, buf_type, FALSE); #endif /* IOCTLRESP_USE_CONSTMEM */ } else { dhd_prot_packet_free(dhd, p, buf_type, FALSE); } return -1; } /* dhd_prot_rxbufpost_ctrl */ static uint16 dhd_msgbuf_rxbuf_post_ctrlpath(dhd_pub_t *dhd, uint8 msg_type, uint32 max_to_post) { uint32 i = 0; int32 ret_val; DHD_INFO(("max to post %d, event %d \n", max_to_post, msg_type)); if (dhd->busstate == DHD_BUS_DOWN) { DHD_ERROR(("%s: bus is already down.\n", __FUNCTION__)); return 0; } while (i < max_to_post) { ret_val = dhd_prot_rxbufpost_ctrl(dhd, msg_type); if (ret_val < 0) break; i++; } DHD_INFO(("posted %d buffers of type %d\n", i, msg_type)); return (uint16)i; } static void dhd_msgbuf_rxbuf_post_ioctlresp_bufs(dhd_pub_t *dhd) { dhd_prot_t *prot = dhd->prot; int max_to_post; DHD_INFO(("ioctl resp buf post\n")); max_to_post = prot->max_ioctlrespbufpost - prot->cur_ioctlresp_bufs_posted; if (max_to_post <= 0) { DHD_INFO(("%s: Cannot post more than max IOCTL resp buffers\n", __FUNCTION__)); return; } prot->cur_ioctlresp_bufs_posted += dhd_msgbuf_rxbuf_post_ctrlpath(dhd, MSG_TYPE_IOCTLRESP_BUF_POST, max_to_post); } static void dhd_msgbuf_rxbuf_post_event_bufs(dhd_pub_t *dhd) { dhd_prot_t *prot = dhd->prot; int max_to_post; max_to_post = prot->max_eventbufpost - prot->cur_event_bufs_posted; if (max_to_post <= 0) { DHD_ERROR(("%s: Cannot post more than max event buffers\n", __FUNCTION__)); return; } prot->cur_event_bufs_posted += dhd_msgbuf_rxbuf_post_ctrlpath(dhd, MSG_TYPE_EVENT_BUF_POST, max_to_post); } static int dhd_msgbuf_rxbuf_post_ts_bufs(dhd_pub_t *dhd) { return 0; } bool BCMFASTPATH dhd_prot_process_msgbuf_infocpl(dhd_pub_t *dhd, uint bound) { dhd_prot_t *prot = dhd->prot; bool more = TRUE; uint n = 0; msgbuf_ring_t *ring = prot->d2hring_info_cpln; unsigned long flags; if (ring == NULL) return FALSE; if (ring->inited != TRUE) return FALSE; /* Process all the messages - DTOH direction */ while (!dhd_is_device_removed(dhd)) { uint8 *msg_addr; uint32 msg_len; if (dhd_query_bus_erros(dhd)) { more = FALSE; break; } if (dhd->hang_was_sent) { more = FALSE; break; } if (dhd->smmu_fault_occurred) { more = FALSE; break; } DHD_RING_LOCK(ring->ring_lock, flags); /* Get the message from ring */ msg_addr = dhd_prot_get_read_addr(dhd, ring, &msg_len); DHD_RING_UNLOCK(ring->ring_lock, flags); if (msg_addr == NULL) { more = FALSE; break; } /* Prefetch data to populate the cache */ OSL_PREFETCH(msg_addr); if (dhd_prot_process_msgtype(dhd, ring, msg_addr, msg_len) != BCME_OK) { DHD_ERROR(("%s: Error at process rxpl msgbuf of len %d\n", __FUNCTION__, msg_len)); } /* Update read pointer */ dhd_prot_upd_read_idx(dhd, ring); /* After batch processing, check RX bound */ n += msg_len / ring->item_len; if (n >= bound) { break; } } return more; } #ifdef EWP_EDL bool dhd_prot_process_msgbuf_edl(dhd_pub_t *dhd) { dhd_prot_t *prot = dhd->prot; msgbuf_ring_t *ring = prot->d2hring_edl; unsigned long flags = 0; uint32 items = 0; uint16 rd = 0; uint16 depth = 0; if (ring == NULL) return FALSE; if (ring->inited != TRUE) return FALSE; if (ring->item_len == 0) { DHD_ERROR(("%s: Bad ring ! ringidx %d, item_len %d \n", __FUNCTION__, ring->idx, ring->item_len)); return FALSE; } if (dhd_query_bus_erros(dhd)) { return FALSE; } if (dhd->hang_was_sent) { return FALSE; } /* in this DPC context just check if wr index has moved * and schedule deferred context to actually process the * work items. */ /* update the write index */ DHD_RING_LOCK(ring->ring_lock, flags); if (dhd->dma_d2h_ring_upd_support) { /* DMAing write/read indices supported */ ring->wr = dhd_prot_dma_indx_get(dhd, D2H_DMA_INDX_WR_UPD, ring->idx); } else { dhd_bus_cmn_readshared(dhd->bus, &ring->wr, RING_WR_UPD, ring->idx); } rd = ring->rd; DHD_RING_UNLOCK(ring->ring_lock, flags); depth = ring->max_items; /* check for avail space, in number of ring items */ items = READ_AVAIL_SPACE(ring->wr, rd, depth); if (items == 0) { /* no work items in edl ring */ return FALSE; } if (items > ring->max_items) { DHD_ERROR(("\r\n======================= \r\n")); DHD_ERROR(("%s(): ring %p, ring->name %s, ring->max_items %d, items %d \r\n", __FUNCTION__, ring, ring->name, ring->max_items, items)); DHD_ERROR(("wr: %d, rd: %d, depth: %d \r\n", ring->wr, ring->rd, depth)); DHD_ERROR(("dhd->busstate %d bus->wait_for_d3_ack %d \r\n", dhd->busstate, dhd->bus->wait_for_d3_ack)); DHD_ERROR(("\r\n======================= \r\n")); #ifdef DHD_FW_COREDUMP if (dhd->memdump_enabled) { /* collect core dump */ dhd->memdump_type = DUMP_TYPE_RESUMED_ON_INVALID_RING_RDWR; dhd_bus_mem_dump(dhd); } #endif /* DHD_FW_COREDUMP */ dhd_schedule_reset(dhd); return FALSE; } if (items > D2HRING_EDL_WATERMARK) { DHD_ERROR_RLMT(("%s: WARNING! EDL watermark hit, num items=%u;" " rd=%u; wr=%u; depth=%u;\n", __FUNCTION__, items, ring->rd, ring->wr, depth)); } dhd_schedule_logtrace(dhd->info); return FALSE; } /* This is called either from work queue context of 'event_log_dispatcher_work' or * from the kthread context of dhd_logtrace_thread */ int dhd_prot_process_edl_complete(dhd_pub_t *dhd, void *evt_decode_data) { dhd_prot_t *prot = NULL; msgbuf_ring_t *ring = NULL; int err = 0; unsigned long flags = 0; cmn_msg_hdr_t *msg = NULL; uint8 *msg_addr = NULL; uint32 max_items_to_process = 0, n = 0; uint32 num_items = 0, new_items = 0; uint16 depth = 0; volatile uint16 wr = 0; if (!dhd || !dhd->prot) return 0; prot = dhd->prot; ring = prot->d2hring_edl; if (!ring || !evt_decode_data) { return 0; } if (dhd->hang_was_sent) { return FALSE; } DHD_RING_LOCK(ring->ring_lock, flags); ring->curr_rd = ring->rd; wr = ring->wr; depth = ring->max_items; /* check for avail space, in number of ring items * Note, that this will only give the # of items * from rd to wr if wr>=rd, or from rd to ring end * if wr < rd. So in the latter case strictly speaking * not all the items are read. But this is OK, because * these will be processed in the next doorbell as rd * would have wrapped around. Processing in the next * doorbell is acceptable since EDL only contains debug data */ num_items = READ_AVAIL_SPACE(wr, ring->rd, depth); if (num_items == 0) { /* no work items in edl ring */ DHD_RING_UNLOCK(ring->ring_lock, flags); return 0; } DHD_INFO(("%s: EDL work items [%u] available \n", __FUNCTION__, num_items)); /* if space is available, calculate address to be read */ msg_addr = (char*)ring->dma_buf.va + (ring->rd * ring->item_len); max_items_to_process = MIN(num_items, DHD_EVENT_LOGTRACE_BOUND); DHD_RING_UNLOCK(ring->ring_lock, flags); /* Prefetch data to populate the cache */ OSL_PREFETCH(msg_addr); n = max_items_to_process; while (n > 0) { msg = (cmn_msg_hdr_t *)msg_addr; /* wait for DMA of work item to complete */ if ((err = prot->d2h_edl_sync_cb(dhd, ring, msg)) != BCME_OK) { DHD_ERROR(("%s: Error waiting for DMA to cmpl in EDL " "ring; err = %d\n", __FUNCTION__, err)); } /* * Update the curr_rd to the current index in the ring, from where * the work item is fetched. This way if the fetched work item * fails in LIVELOCK, we can print the exact read index in the ring * that shows up the corrupted work item. */ if ((ring->curr_rd + 1) >= ring->max_items) { ring->curr_rd = 0; } else { ring->curr_rd += 1; } if (err != BCME_OK) { return 0; } /* process the edl work item, i.e, the event log */ err = dhd_event_logtrace_process_edl(dhd, msg_addr, evt_decode_data); /* Dummy sleep so that scheduler kicks in after processing any logprints */ OSL_SLEEP(0); /* Prefetch data to populate the cache */ OSL_PREFETCH(msg_addr + ring->item_len); msg_addr += ring->item_len; --n; } DHD_RING_LOCK(ring->ring_lock, flags); /* update host ring read pointer */ if ((ring->rd + max_items_to_process) >= ring->max_items) ring->rd = 0; else ring->rd += max_items_to_process; DHD_RING_UNLOCK(ring->ring_lock, flags); /* Now after processing max_items_to_process update dongle rd index. * The TCM rd index is updated only if bus is not * in D3. Else, the rd index is updated from resume * context in - 'dhdpcie_bus_suspend' */ DHD_GENERAL_LOCK(dhd, flags); if (DHD_BUS_CHECK_SUSPEND_OR_ANY_SUSPEND_IN_PROGRESS(dhd)) { DHD_INFO(("%s: bus is in suspend(%d) or suspending(0x%x) state!!\n", __FUNCTION__, dhd->busstate, dhd->dhd_bus_busy_state)); DHD_GENERAL_UNLOCK(dhd, flags); } else { DHD_GENERAL_UNLOCK(dhd, flags); DHD_EDL_RING_TCM_RD_UPDATE(dhd); } /* if num_items > bound, then anyway we will reschedule and * this function runs again, so that if in between the DPC has * updated the wr index, then the updated wr is read. But if * num_items <= bound, and if DPC executes and updates the wr index * when the above while loop is running, then the updated 'wr' index * needs to be re-read from here, If we don't do so, then till * the next time this function is scheduled * the event logs will not be processed. */ if (num_items <= DHD_EVENT_LOGTRACE_BOUND) { /* read the updated wr index if reqd. and update num_items */ DHD_RING_LOCK(ring->ring_lock, flags); if (wr != (volatile uint16)ring->wr) { wr = (volatile uint16)ring->wr; new_items = READ_AVAIL_SPACE(wr, ring->rd, depth); DHD_INFO(("%s: new items [%u] avail in edl\n", __FUNCTION__, new_items)); num_items += new_items; } DHD_RING_UNLOCK(ring->ring_lock, flags); } /* if # of items processed is less than num_items, need to re-schedule * the deferred ctx */ if (max_items_to_process < num_items) { DHD_INFO(("%s: EDL bound hit / new items found, " "items processed=%u; remaining=%u, " "resched deferred ctx...\n", __FUNCTION__, max_items_to_process, num_items - max_items_to_process)); return (num_items - max_items_to_process); } return 0; } void dhd_prot_edl_ring_tcm_rd_update(dhd_pub_t *dhd) { dhd_prot_t *prot = NULL; unsigned long flags = 0; msgbuf_ring_t *ring = NULL; if (!dhd) return; prot = dhd->prot; if (!prot || !prot->d2hring_edl) return; ring = prot->d2hring_edl; DHD_RING_LOCK(ring->ring_lock, flags); dhd_prot_upd_read_idx(dhd, ring); DHD_RING_UNLOCK(ring->ring_lock, flags); } #endif /* EWP_EDL */ /* called when DHD needs to check for 'receive complete' messages from the dongle */ bool BCMFASTPATH dhd_prot_process_msgbuf_rxcpl(dhd_pub_t *dhd, uint bound, int ringtype) { bool more = FALSE; uint n = 0; dhd_prot_t *prot = dhd->prot; msgbuf_ring_t *ring; uint16 item_len; host_rxbuf_cmpl_t *msg = NULL; uint8 *msg_addr; uint32 msg_len; uint16 pkt_cnt, pkt_cnt_newidx; unsigned long flags; dmaaddr_t pa; uint32 len; void *dmah; void *secdma; int ifidx = 0, if_newidx = 0; void *pkt, *pktqhead = NULL, *prevpkt = NULL, *pkt_newidx, *nextpkt; uint32 pktid; int i; uint8 sync; ts_timestamp_t *ts; BCM_REFERENCE(ts); #ifdef DHD_HP2P if (ringtype == DHD_HP2P_RING && prot->d2hring_hp2p_rxcpl) ring = prot->d2hring_hp2p_rxcpl; else #endif /* DHD_HP2P */ ring = &prot->d2hring_rx_cpln; item_len = ring->item_len; while (1) { if (dhd_is_device_removed(dhd)) break; if (dhd_query_bus_erros(dhd)) break; if (dhd->hang_was_sent) break; if (dhd->smmu_fault_occurred) { break; } pkt_cnt = 0; pktqhead = pkt_newidx = NULL; pkt_cnt_newidx = 0; DHD_RING_LOCK(ring->ring_lock, flags); /* Get the address of the next message to be read from ring */ msg_addr = dhd_prot_get_read_addr(dhd, ring, &msg_len); if (msg_addr == NULL) { DHD_RING_UNLOCK(ring->ring_lock, flags); break; } while (msg_len > 0) { msg = (host_rxbuf_cmpl_t *)msg_addr; /* Wait until DMA completes, then fetch msg_type */ sync = prot->d2h_sync_cb(dhd, ring, &msg->cmn_hdr, item_len); /* * Update the curr_rd to the current index in the ring, from where * the work item is fetched. This way if the fetched work item * fails in LIVELOCK, we can print the exact read index in the ring * that shows up the corrupted work item. */ if ((ring->curr_rd + 1) >= ring->max_items) { ring->curr_rd = 0; } else { ring->curr_rd += 1; } if (!sync) { msg_len -= item_len; msg_addr += item_len; continue; } pktid = ltoh32(msg->cmn_hdr.request_id); #ifdef DHD_PKTID_AUDIT_RING DHD_PKTID_AUDIT_RING_DEBUG(dhd, dhd->prot->pktid_rx_map, pktid, DHD_DUPLICATE_FREE, msg, D2HRING_RXCMPLT_ITEMSIZE); #endif /* DHD_PKTID_AUDIT_RING */ pkt = DHD_PKTID_TO_NATIVE(dhd, prot->pktid_rx_map, pktid, pa, len, dmah, secdma, PKTTYPE_DATA_RX); if (!pkt) { msg_len -= item_len; msg_addr += item_len; continue; } if (SECURE_DMA_ENAB(dhd->osh)) SECURE_DMA_UNMAP(dhd->osh, pa, (uint) len, DMA_RX, 0, dmah, secdma, 0); else DMA_UNMAP(dhd->osh, pa, (uint) len, DMA_RX, 0, dmah); #ifdef DMAMAP_STATS dhd->dma_stats.rxdata--; dhd->dma_stats.rxdata_sz -= len; #endif /* DMAMAP_STATS */ DHD_INFO(("id 0x%04x, offset %d, len %d, idx %d, phase 0x%02x, " "pktdata %p, metalen %d\n", ltoh32(msg->cmn_hdr.request_id), ltoh16(msg->data_offset), ltoh16(msg->data_len), msg->cmn_hdr.if_id, msg->cmn_hdr.flags, PKTDATA(dhd->osh, pkt), ltoh16(msg->metadata_len))); pkt_cnt++; msg_len -= item_len; msg_addr += item_len; #if DHD_DBG_SHOW_METADATA if (prot->metadata_dbg && prot->rx_metadata_offset && msg->metadata_len) { uchar *ptr; ptr = PKTDATA(dhd->osh, pkt) - (prot->rx_metadata_offset); /* header followed by data */ bcm_print_bytes("rxmetadata", ptr, msg->metadata_len); dhd_prot_print_metadata(dhd, ptr, msg->metadata_len); } #endif /* DHD_DBG_SHOW_METADATA */ /* data_offset from buf start */ if (ltoh16(msg->data_offset)) { /* data offset given from dongle after split rx */ PKTPULL(dhd->osh, pkt, ltoh16(msg->data_offset)); } else if (prot->rx_dataoffset) { /* DMA RX offset updated through shared area */ PKTPULL(dhd->osh, pkt, prot->rx_dataoffset); } /* Actual length of the packet */ PKTSETLEN(dhd->osh, pkt, ltoh16(msg->data_len)); #if defined(WL_MONITOR) if (dhd_monitor_enabled(dhd, ifidx)) { if (msg->flags & BCMPCIE_PKT_FLAGS_FRAME_802_11) { dhd_rx_mon_pkt(dhd, msg, pkt, ifidx); continue; } else { DHD_ERROR(("Received non 802.11 packet, " "when monitor mode is enabled\n")); } } #endif /* WL_MONITOR */ if (!pktqhead) { pktqhead = prevpkt = pkt; ifidx = msg->cmn_hdr.if_id; } else { if (ifidx != msg->cmn_hdr.if_id) { pkt_newidx = pkt; if_newidx = msg->cmn_hdr.if_id; pkt_cnt--; pkt_cnt_newidx = 1; break; } else { PKTSETNEXT(dhd->osh, prevpkt, pkt); prevpkt = pkt; } } #ifdef DHD_HP2P if (dhd->hp2p_capable && ring == prot->d2hring_hp2p_rxcpl) { #ifdef DHD_HP2P_DEBUG bcm_print_bytes("Rxcpl", (uchar *)msg, sizeof(host_rxbuf_cmpl_t)); #endif /* DHD_HP2P_DEBUG */ dhd_update_hp2p_rxstats(dhd, msg); } #endif /* DHD_HP2P */ #ifdef DHD_LBUF_AUDIT PKTAUDIT(dhd->osh, pkt); #endif // endif } /* roll back read pointer for unprocessed message */ if (msg_len > 0) { if (ring->rd < msg_len / item_len) ring->rd = ring->max_items - msg_len / item_len; else ring->rd -= msg_len / item_len; } /* Update read pointer */ dhd_prot_upd_read_idx(dhd, ring); DHD_RING_UNLOCK(ring->ring_lock, flags); pkt = pktqhead; for (i = 0; pkt && i < pkt_cnt; i++, pkt = nextpkt) { nextpkt = PKTNEXT(dhd->osh, pkt); PKTSETNEXT(dhd->osh, pkt, NULL); #ifdef DHD_LB_RXP dhd_lb_rx_pkt_enqueue(dhd, pkt, ifidx); #elif defined(DHD_RX_CHAINING) dhd_rxchain_frame(dhd, pkt, ifidx); #else dhd_bus_rx_frame(dhd->bus, pkt, ifidx, 1); #endif /* DHD_LB_RXP */ } if (pkt_newidx) { #ifdef DHD_LB_RXP dhd_lb_rx_pkt_enqueue(dhd, pkt_newidx, if_newidx); #elif defined(DHD_RX_CHAINING) dhd_rxchain_frame(dhd, pkt_newidx, if_newidx); #else dhd_bus_rx_frame(dhd->bus, pkt_newidx, if_newidx, 1); #endif /* DHD_LB_RXP */ } pkt_cnt += pkt_cnt_newidx; /* Post another set of rxbufs to the device */ dhd_prot_return_rxbuf(dhd, 0, pkt_cnt); #ifdef DHD_RX_CHAINING dhd_rxchain_commit(dhd); #endif // endif /* After batch processing, check RX bound */ n += pkt_cnt; if (n >= bound) { more = TRUE; break; } } /* Call lb_dispatch only if packets are queued */ if (n && #ifdef WL_MONITOR !(dhd_monitor_enabled(dhd, ifidx)) && #endif /* WL_MONITOR */ TRUE) { DHD_LB_DISPATCH_RX_COMPL(dhd); DHD_LB_DISPATCH_RX_PROCESS(dhd); } return more; } /** * Hands transmit packets (with a caller provided flow_id) over to dongle territory (the flow ring) */ void dhd_prot_update_txflowring(dhd_pub_t *dhd, uint16 flowid, void *msgring) { msgbuf_ring_t *ring = (msgbuf_ring_t *)msgring; if (ring == NULL) { DHD_ERROR(("%s: NULL txflowring. exiting...\n", __FUNCTION__)); return; } /* Update read pointer */ if (dhd->dma_d2h_ring_upd_support) { ring->rd = dhd_prot_dma_indx_get(dhd, H2D_DMA_INDX_RD_UPD, ring->idx); } DHD_TRACE(("ringid %d flowid %d write %d read %d \n\n", ring->idx, flowid, ring->wr, ring->rd)); /* Need more logic here, but for now use it directly */ dhd_bus_schedule_queue(dhd->bus, flowid, TRUE); /* from queue to flowring */ } /** called when DHD needs to check for 'transmit complete' messages from the dongle */ bool BCMFASTPATH dhd_prot_process_msgbuf_txcpl(dhd_pub_t *dhd, uint bound, int ringtype) { bool more = TRUE; uint n = 0; msgbuf_ring_t *ring; unsigned long flags; #ifdef DHD_HP2P if (ringtype == DHD_HP2P_RING && dhd->prot->d2hring_hp2p_txcpl) ring = dhd->prot->d2hring_hp2p_txcpl; else #endif /* DHD_HP2P */ ring = &dhd->prot->d2hring_tx_cpln; /* Process all the messages - DTOH direction */ while (!dhd_is_device_removed(dhd)) { uint8 *msg_addr; uint32 msg_len; if (dhd_query_bus_erros(dhd)) { more = FALSE; break; } if (dhd->hang_was_sent) { more = FALSE; break; } if (dhd->smmu_fault_occurred) { more = FALSE; break; } DHD_RING_LOCK(ring->ring_lock, flags); /* Get the address of the next message to be read from ring */ msg_addr = dhd_prot_get_read_addr(dhd, ring, &msg_len); DHD_RING_UNLOCK(ring->ring_lock, flags); if (msg_addr == NULL) { more = FALSE; break; } /* Prefetch data to populate the cache */ OSL_PREFETCH(msg_addr); if (dhd_prot_process_msgtype(dhd, ring, msg_addr, msg_len) != BCME_OK) { DHD_ERROR(("%s: process %s msg addr %p len %d\n", __FUNCTION__, ring->name, msg_addr, msg_len)); } /* Write to dngl rd ptr */ dhd_prot_upd_read_idx(dhd, ring); /* After batch processing, check bound */ n += msg_len / ring->item_len; if (n >= bound) { break; } } DHD_LB_DISPATCH_TX_COMPL(dhd); return more; } int BCMFASTPATH dhd_prot_process_trapbuf(dhd_pub_t *dhd) { uint32 data; dhd_dma_buf_t *trap_addr = &dhd->prot->fw_trap_buf; /* Interrupts can come in before this struct * has been initialized. */ if (trap_addr->va == NULL) { DHD_ERROR(("%s: trap_addr->va is NULL\n", __FUNCTION__)); return 0; } OSL_CACHE_INV((void *)trap_addr->va, sizeof(uint32)); data = *(uint32 *)(trap_addr->va); if (data & D2H_DEV_FWHALT) { DHD_ERROR(("Firmware trapped and trap_data is 0x%04x\n", data)); if (data & D2H_DEV_EXT_TRAP_DATA) { if (dhd->extended_trap_data) { OSL_CACHE_INV((void *)trap_addr->va, BCMPCIE_EXT_TRAP_DATA_MAXLEN); memcpy(dhd->extended_trap_data, (uint32 *)trap_addr->va, BCMPCIE_EXT_TRAP_DATA_MAXLEN); } DHD_ERROR(("Extended trap data available\n")); } return data; } return 0; } /** called when DHD needs to check for 'ioctl complete' messages from the dongle */ int BCMFASTPATH dhd_prot_process_ctrlbuf(dhd_pub_t *dhd) { dhd_prot_t *prot = dhd->prot; msgbuf_ring_t *ring = &prot->d2hring_ctrl_cpln; unsigned long flags; /* Process all the messages - DTOH direction */ while (!dhd_is_device_removed(dhd)) { uint8 *msg_addr; uint32 msg_len; if (dhd_query_bus_erros(dhd)) { break; } if (dhd->hang_was_sent) { break; } if (dhd->smmu_fault_occurred) { break; } DHD_RING_LOCK(ring->ring_lock, flags); /* Get the address of the next message to be read from ring */ msg_addr = dhd_prot_get_read_addr(dhd, ring, &msg_len); DHD_RING_UNLOCK(ring->ring_lock, flags); if (msg_addr == NULL) { break; } /* Prefetch data to populate the cache */ OSL_PREFETCH(msg_addr); if (dhd_prot_process_msgtype(dhd, ring, msg_addr, msg_len) != BCME_OK) { DHD_ERROR(("%s: process %s msg addr %p len %d\n", __FUNCTION__, ring->name, msg_addr, msg_len)); } /* Write to dngl rd ptr */ dhd_prot_upd_read_idx(dhd, ring); } return 0; } /** * Consume messages out of the D2H ring. Ensure that the message's DMA to host * memory has completed, before invoking the message handler via a table lookup * of the cmn_msg_hdr::msg_type. */ static int BCMFASTPATH dhd_prot_process_msgtype(dhd_pub_t *dhd, msgbuf_ring_t *ring, uint8 *buf, uint32 len) { uint32 buf_len = len; uint16 item_len; uint8 msg_type; cmn_msg_hdr_t *msg = NULL; int ret = BCME_OK; ASSERT(ring); item_len = ring->item_len; if (item_len == 0) { DHD_ERROR(("%s: ringidx %d, item_len %d buf_len %d \n", __FUNCTION__, ring->idx, item_len, buf_len)); return BCME_ERROR; } while (buf_len > 0) { if (dhd->hang_was_sent) { ret = BCME_ERROR; goto done; } if (dhd->smmu_fault_occurred) { ret = BCME_ERROR; goto done; } msg = (cmn_msg_hdr_t *)buf; /* Wait until DMA completes, then fetch msg_type */ msg_type = dhd->prot->d2h_sync_cb(dhd, ring, msg, item_len); /* * Update the curr_rd to the current index in the ring, from where * the work item is fetched. This way if the fetched work item * fails in LIVELOCK, we can print the exact read index in the ring * that shows up the corrupted work item. */ if ((ring->curr_rd + 1) >= ring->max_items) { ring->curr_rd = 0; } else { ring->curr_rd += 1; } /* Prefetch data to populate the cache */ OSL_PREFETCH(buf + item_len); DHD_INFO(("msg_type %d item_len %d buf_len %d\n", msg_type, item_len, buf_len)); if (msg_type == MSG_TYPE_LOOPBACK) { bcm_print_bytes("LPBK RESP: ", (uint8 *)msg, item_len); DHD_ERROR((" MSG_TYPE_LOOPBACK, len %d\n", item_len)); } ASSERT(msg_type < DHD_PROT_FUNCS); if (msg_type >= DHD_PROT_FUNCS) { DHD_ERROR(("%s: msg_type %d, item_len %d buf_len %d\n", __FUNCTION__, msg_type, item_len, buf_len)); ret = BCME_ERROR; goto done; } if (msg_type == MSG_TYPE_INFO_BUF_CMPLT) { if (ring == dhd->prot->d2hring_info_cpln) { if (!dhd->prot->infobufpost) { DHD_ERROR(("infobuf posted are zero," "but there is a completion\n")); goto done; } dhd->prot->infobufpost--; dhd_prot_infobufpost(dhd, dhd->prot->h2dring_info_subn); dhd_prot_process_infobuf_complete(dhd, buf); } } else if (table_lookup[msg_type]) { table_lookup[msg_type](dhd, buf); } if (buf_len < item_len) { ret = BCME_ERROR; goto done; } buf_len = buf_len - item_len; buf = buf + item_len; } done: #ifdef DHD_RX_CHAINING dhd_rxchain_commit(dhd); #endif // endif return ret; } /* dhd_prot_process_msgtype */ static void dhd_prot_noop(dhd_pub_t *dhd, void *msg) { return; } /** called on MSG_TYPE_RING_STATUS message received from dongle */ static void dhd_prot_ringstatus_process(dhd_pub_t *dhd, void *msg) { pcie_ring_status_t *ring_status = (pcie_ring_status_t *) msg; uint32 request_id = ltoh32(ring_status->cmn_hdr.request_id); uint16 status = ltoh16(ring_status->compl_hdr.status); uint16 ring_id = ltoh16(ring_status->compl_hdr.flow_ring_id); DHD_ERROR(("ring status: request_id %d, status 0x%04x, flow ring %d, write_idx %d \n", request_id, status, ring_id, ltoh16(ring_status->write_idx))); if (ltoh16(ring_status->compl_hdr.ring_id) != BCMPCIE_H2D_MSGRING_CONTROL_SUBMIT) return; if (status == BCMPCIE_BAD_PHASE) { /* bad phase report from */ DHD_ERROR(("Bad phase\n")); } if (status != BCMPCIE_BADOPTION) return; if (request_id == DHD_H2D_DBGRING_REQ_PKTID) { if (dhd->prot->h2dring_info_subn != NULL) { if (dhd->prot->h2dring_info_subn->create_pending == TRUE) { DHD_ERROR(("H2D ring create failed for info ring\n")); dhd->prot->h2dring_info_subn->create_pending = FALSE; } else DHD_ERROR(("ring create ID for a ring, create not pending\n")); } else { DHD_ERROR(("%s info submit ring doesn't exist\n", __FUNCTION__)); } } else if (request_id == DHD_D2H_DBGRING_REQ_PKTID) { if (dhd->prot->d2hring_info_cpln != NULL) { if (dhd->prot->d2hring_info_cpln->create_pending == TRUE) { DHD_ERROR(("D2H ring create failed for info ring\n")); dhd->prot->d2hring_info_cpln->create_pending = FALSE; } else DHD_ERROR(("ring create ID for info ring, create not pending\n")); } else { DHD_ERROR(("%s info cpl ring doesn't exist\n", __FUNCTION__)); } } #ifdef DHD_HP2P else if (request_id == DHD_D2H_HPPRING_TXREQ_PKTID) { if (dhd->prot->d2hring_hp2p_txcpl != NULL) { if (dhd->prot->d2hring_hp2p_txcpl->create_pending == TRUE) { DHD_ERROR(("H2D ring create failed for hp2p ring\n")); dhd->prot->d2hring_hp2p_txcpl->create_pending = FALSE; } else DHD_ERROR(("ring create ID for a ring, create not pending\n")); } else { DHD_ERROR(("%s hp2p txcmpl ring doesn't exist\n", __FUNCTION__)); } } else if (request_id == DHD_D2H_HPPRING_RXREQ_PKTID) { if (dhd->prot->d2hring_hp2p_rxcpl != NULL) { if (dhd->prot->d2hring_hp2p_rxcpl->create_pending == TRUE) { DHD_ERROR(("D2H ring create failed for hp2p rxcmpl ring\n")); dhd->prot->d2hring_hp2p_rxcpl->create_pending = FALSE; } else DHD_ERROR(("ring create ID for hp2p rxcmpl ring, not pending\n")); } else { DHD_ERROR(("%s hp2p rxcpl ring doesn't exist\n", __FUNCTION__)); } } #endif /* DHD_HP2P */ else { DHD_ERROR(("don;t know how to pair with original request\n")); } /* How do we track this to pair it with ??? */ return; } /** called on MSG_TYPE_GEN_STATUS ('general status') message received from dongle */ static void dhd_prot_genstatus_process(dhd_pub_t *dhd, void *msg) { pcie_gen_status_t *gen_status = (pcie_gen_status_t *)msg; DHD_ERROR(("ERROR: gen status: request_id %d, STATUS 0x%04x, flow ring %d \n", gen_status->cmn_hdr.request_id, gen_status->compl_hdr.status, gen_status->compl_hdr.flow_ring_id)); /* How do we track this to pair it with ??? */ return; } /** * Called on MSG_TYPE_IOCTLPTR_REQ_ACK ('ioctl ack') message received from dongle, meaning that the * dongle received the ioctl message in dongle memory. */ static void dhd_prot_ioctack_process(dhd_pub_t *dhd, void *msg) { ioctl_req_ack_msg_t *ioct_ack = (ioctl_req_ack_msg_t *)msg; unsigned long flags; #if defined(DHD_PKTID_AUDIT_RING) uint32 pktid = ltoh32(ioct_ack->cmn_hdr.request_id); #endif // endif #if defined(DHD_PKTID_AUDIT_RING) /* Skip audit for ADHD_IOCTL_REQ_PKTID = 0xFFFE */ if (pktid != DHD_IOCTL_REQ_PKTID) { #ifndef IOCTLRESP_USE_CONSTMEM DHD_PKTID_AUDIT_RING_DEBUG(dhd, dhd->prot->pktid_ctrl_map, pktid, DHD_TEST_IS_ALLOC, msg, D2HRING_CTRL_CMPLT_ITEMSIZE); #else DHD_PKTID_AUDIT_RING_DEBUG(dhd, dhd->prot->pktid_map_handle_ioctl, pktid, DHD_TEST_IS_ALLOC, msg, D2HRING_CTRL_CMPLT_ITEMSIZE); #endif /* !IOCTLRESP_USE_CONSTMEM */ } #endif // endif dhd->prot->ioctl_ack_time = OSL_LOCALTIME_NS(); DHD_GENERAL_LOCK(dhd, flags); if ((dhd->prot->ioctl_state & MSGBUF_IOCTL_ACK_PENDING) && (dhd->prot->ioctl_state & MSGBUF_IOCTL_RESP_PENDING)) { dhd->prot->ioctl_state &= ~MSGBUF_IOCTL_ACK_PENDING; } else { DHD_ERROR(("%s: received ioctl ACK with state %02x trans_id = %d\n", __FUNCTION__, dhd->prot->ioctl_state, dhd->prot->ioctl_trans_id)); prhex("dhd_prot_ioctack_process:", (uchar *)msg, D2HRING_CTRL_CMPLT_ITEMSIZE); } DHD_GENERAL_UNLOCK(dhd, flags); DHD_CTL(("ioctl req ack: request_id %d, status 0x%04x, flow ring %d \n", ioct_ack->cmn_hdr.request_id, ioct_ack->compl_hdr.status, ioct_ack->compl_hdr.flow_ring_id)); if (ioct_ack->compl_hdr.status != 0) { DHD_ERROR(("got an error status for the ioctl request...need to handle that\n")); } } /** called on MSG_TYPE_IOCTL_CMPLT message received from dongle */ static void dhd_prot_ioctcmplt_process(dhd_pub_t *dhd, void *msg) { dhd_prot_t *prot = dhd->prot; uint32 pkt_id, xt_id; ioctl_comp_resp_msg_t *ioct_resp = (ioctl_comp_resp_msg_t *)msg; void *pkt; unsigned long flags; dhd_dma_buf_t retbuf; /* Check for ioctl timeout induce flag, which is set by firing * dhd iovar to induce IOCTL timeout. If flag is set, * return from here, which results in to IOCTL timeout. */ if (dhd->dhd_induce_error == DHD_INDUCE_IOCTL_TIMEOUT) { DHD_ERROR(("%s: Inducing resumed on timeout\n", __FUNCTION__)); return; } memset(&retbuf, 0, sizeof(dhd_dma_buf_t)); pkt_id = ltoh32(ioct_resp->cmn_hdr.request_id); #if defined(DHD_PKTID_AUDIT_RING) #ifndef IOCTLRESP_USE_CONSTMEM DHD_PKTID_AUDIT_RING_DEBUG(dhd, prot->pktid_ctrl_map, pkt_id, DHD_DUPLICATE_FREE, msg, D2HRING_CTRL_CMPLT_ITEMSIZE); #else DHD_PKTID_AUDIT_RING_DEBUG(dhd, prot->pktid_map_handle_ioctl, pkt_id, DHD_DUPLICATE_FREE, msg, D2HRING_CTRL_CMPLT_ITEMSIZE); #endif /* !IOCTLRESP_USE_CONSTMEM */ #endif // endif DHD_GENERAL_LOCK(dhd, flags); if ((prot->ioctl_state & MSGBUF_IOCTL_ACK_PENDING) || !(prot->ioctl_state & MSGBUF_IOCTL_RESP_PENDING)) { DHD_ERROR(("%s: received ioctl response with state %02x trans_id = %d\n", __FUNCTION__, dhd->prot->ioctl_state, dhd->prot->ioctl_trans_id)); prhex("dhd_prot_ioctcmplt_process:", (uchar *)msg, D2HRING_CTRL_CMPLT_ITEMSIZE); DHD_GENERAL_UNLOCK(dhd, flags); return; } dhd->prot->ioctl_cmplt_time = OSL_LOCALTIME_NS(); /* Clear Response pending bit */ prot->ioctl_state &= ~MSGBUF_IOCTL_RESP_PENDING; DHD_GENERAL_UNLOCK(dhd, flags); #ifndef IOCTLRESP_USE_CONSTMEM pkt = dhd_prot_packet_get(dhd, pkt_id, PKTTYPE_IOCTL_RX, TRUE); #else dhd_prot_ioctl_ret_buffer_get(dhd, pkt_id, &retbuf); pkt = retbuf.va; #endif /* !IOCTLRESP_USE_CONSTMEM */ if (!pkt) { DHD_ERROR(("%s: received ioctl response with NULL pkt\n", __FUNCTION__)); prhex("dhd_prot_ioctcmplt_process:", (uchar *)msg, D2HRING_CTRL_CMPLT_ITEMSIZE); return; } prot->ioctl_resplen = ltoh16(ioct_resp->resp_len); prot->ioctl_status = ltoh16(ioct_resp->compl_hdr.status); xt_id = ltoh16(ioct_resp->trans_id); if (xt_id != prot->ioctl_trans_id || prot->curr_ioctl_cmd != ioct_resp->cmd) { DHD_ERROR(("%s: transaction id(%d %d) or cmd(%d %d) mismatch\n", __FUNCTION__, xt_id, prot->ioctl_trans_id, prot->curr_ioctl_cmd, ioct_resp->cmd)); dhd_wakeup_ioctl_event(dhd, IOCTL_RETURN_ON_ERROR); dhd_prot_debug_info_print(dhd); #ifdef DHD_FW_COREDUMP if (dhd->memdump_enabled) { /* collect core dump */ dhd->memdump_type = DUMP_TYPE_TRANS_ID_MISMATCH; dhd_bus_mem_dump(dhd); } #else ASSERT(0); #endif /* DHD_FW_COREDUMP */ dhd_schedule_reset(dhd); goto exit; } DHD_CTL(("IOCTL_COMPLETE: req_id %x transid %d status %x resplen %d\n", pkt_id, xt_id, prot->ioctl_status, prot->ioctl_resplen)); if (prot->ioctl_resplen > 0) { #ifndef IOCTLRESP_USE_CONSTMEM bcopy(PKTDATA(dhd->osh, pkt), prot->retbuf.va, prot->ioctl_resplen); #else bcopy(pkt, prot->retbuf.va, prot->ioctl_resplen); #endif /* !IOCTLRESP_USE_CONSTMEM */ } /* wake up any dhd_os_ioctl_resp_wait() */ dhd_wakeup_ioctl_event(dhd, IOCTL_RETURN_ON_SUCCESS); exit: #ifndef IOCTLRESP_USE_CONSTMEM dhd_prot_packet_free(dhd, pkt, PKTTYPE_IOCTL_RX, FALSE); #else free_ioctl_return_buffer(dhd, &retbuf); #endif /* !IOCTLRESP_USE_CONSTMEM */ /* Post another ioctl buf to the device */ if (prot->cur_ioctlresp_bufs_posted > 0) { prot->cur_ioctlresp_bufs_posted--; } dhd_msgbuf_rxbuf_post_ioctlresp_bufs(dhd); } int dhd_prot_check_tx_resource(dhd_pub_t *dhd) { return dhd->prot->no_tx_resource; } void dhd_prot_update_pktid_txq_stop_cnt(dhd_pub_t *dhd) { dhd->prot->pktid_txq_stop_cnt++; } void dhd_prot_update_pktid_txq_start_cnt(dhd_pub_t *dhd) { dhd->prot->pktid_txq_start_cnt++; } /** called on MSG_TYPE_TX_STATUS message received from dongle */ static void BCMFASTPATH dhd_prot_txstatus_process(dhd_pub_t *dhd, void *msg) { dhd_prot_t *prot = dhd->prot; host_txbuf_cmpl_t * txstatus; unsigned long flags; uint32 pktid; void *pkt; dmaaddr_t pa; uint32 len; void *dmah; void *secdma; bool pkt_fate; msgbuf_ring_t *ring = &dhd->prot->d2hring_tx_cpln; #if defined(TX_STATUS_LATENCY_STATS) || defined(DHD_HP2P) flow_info_t *flow_info; uint64 tx_status_latency; #endif /* TX_STATUS_LATENCY_STATS || DHD_HP2P */ #if defined(TX_STATUS_LATENCY_STATS) flow_ring_node_t *flow_ring_node; uint16 flowid; #endif // endif ts_timestamp_t *ts; BCM_REFERENCE(ts); txstatus = (host_txbuf_cmpl_t *)msg; #if defined(TX_STATUS_LATENCY_STATS) flowid = txstatus->compl_hdr.flow_ring_id; flow_ring_node = DHD_FLOW_RING(dhd, flowid); #endif // endif /* locks required to protect circular buffer accesses */ DHD_RING_LOCK(ring->ring_lock, flags); pktid = ltoh32(txstatus->cmn_hdr.request_id); pkt_fate = TRUE; #if defined(DHD_PKTID_AUDIT_RING) DHD_PKTID_AUDIT_RING_DEBUG(dhd, dhd->prot->pktid_tx_map, pktid, DHD_DUPLICATE_FREE, msg, D2HRING_TXCMPLT_ITEMSIZE); #endif // endif DHD_INFO(("txstatus for pktid 0x%04x\n", pktid)); if (OSL_ATOMIC_DEC_RETURN(dhd->osh, &prot->active_tx_count) < 0) { DHD_ERROR(("Extra packets are freed\n")); } ASSERT(pktid != 0); pkt = DHD_PKTID_TO_NATIVE(dhd, dhd->prot->pktid_tx_map, pktid, pa, len, dmah, secdma, PKTTYPE_DATA_TX); if (!pkt) { DHD_RING_UNLOCK(ring->ring_lock, flags); DHD_ERROR(("%s: received txstatus with NULL pkt\n", __FUNCTION__)); prhex("dhd_prot_txstatus_process:", (uchar *)msg, D2HRING_TXCMPLT_ITEMSIZE); #ifdef DHD_FW_COREDUMP if (dhd->memdump_enabled) { /* collect core dump */ dhd->memdump_type = DUMP_TYPE_PKTID_INVALID; dhd_bus_mem_dump(dhd); } #else ASSERT(0); #endif /* DHD_FW_COREDUMP */ return; } if (DHD_PKTID_AVAIL(dhd->prot->pktid_tx_map) == DHD_PKTID_MIN_AVAIL_COUNT) { dhd->prot->no_tx_resource = FALSE; dhd_bus_start_queue(dhd->bus); } if (SECURE_DMA_ENAB(dhd->osh)) { int offset = 0; BCM_REFERENCE(offset); if (dhd->prot->tx_metadata_offset) offset = dhd->prot->tx_metadata_offset + ETHER_HDR_LEN; SECURE_DMA_UNMAP(dhd->osh, (uint) pa, (uint) dhd->prot->tx_metadata_offset, DMA_RX, 0, dmah, secdma, offset); } else { DMA_UNMAP(dhd->osh, pa, (uint) len, DMA_RX, 0, dmah); } #ifdef TX_STATUS_LATENCY_STATS /* update the tx status latency for flowid */ flow_info = &flow_ring_node->flow_info; tx_status_latency = OSL_SYSUPTIME_US() - DHD_PKT_GET_QTIME(pkt); flow_info->cum_tx_status_latency += tx_status_latency; flow_info->num_tx_status++; #endif /* TX_STATUS_LATENCY_STATS */ #if defined(DHD_LB_TXC) && !defined(BCM_SECURE_DMA) { int elem_ix; void **elem; bcm_workq_t *workq; workq = &prot->tx_compl_prod; /* * Produce the packet into the tx_compl workq for the tx compl tasklet * to consume. */ OSL_PREFETCH(PKTTAG(pkt)); /* fetch next available slot in workq */ elem_ix = bcm_ring_prod(WORKQ_RING(workq), DHD_LB_WORKQ_SZ); DHD_PKTTAG_SET_PA((dhd_pkttag_fr_t *)PKTTAG(pkt), pa); DHD_PKTTAG_SET_PA_LEN((dhd_pkttag_fr_t *)PKTTAG(pkt), len); if (elem_ix == BCM_RING_FULL) { DHD_ERROR(("tx_compl_prod BCM_RING_FULL\n")); goto workq_ring_full; } elem = WORKQ_ELEMENT(void *, &prot->tx_compl_prod, elem_ix); *elem = pkt; smp_wmb(); /* Sync WR index to consumer if the SYNC threshold has been reached */ if (++prot->tx_compl_prod_sync >= DHD_LB_WORKQ_SYNC) { bcm_workq_prod_sync(workq); prot->tx_compl_prod_sync = 0; } DHD_INFO(("%s: tx_compl_prod pkt<%p> sync<%d>\n", __FUNCTION__, pkt, prot->tx_compl_prod_sync)); DHD_RING_UNLOCK(ring->ring_lock, flags); return; } workq_ring_full: #endif /* !DHD_LB_TXC */ #ifdef DMAMAP_STATS dhd->dma_stats.txdata--; dhd->dma_stats.txdata_sz -= len; #endif /* DMAMAP_STATS */ pkt_fate = dhd_dbg_process_tx_status(dhd, pkt, pktid, ltoh16(txstatus->compl_hdr.status) & WLFC_CTL_PKTFLAG_MASK); #if defined(BCMPCIE) dhd_txcomplete(dhd, pkt, pkt_fate); #ifdef DHD_4WAYM4_FAIL_DISCONNECT dhd_eap_txcomplete(dhd, pkt, pkt_fate, txstatus->cmn_hdr.if_id); #endif /* DHD_4WAYM4_FAIL_DISCONNECT */ #endif // endif #if DHD_DBG_SHOW_METADATA if (dhd->prot->metadata_dbg && dhd->prot->tx_metadata_offset && txstatus->metadata_len) { uchar *ptr; /* The Ethernet header of TX frame was copied and removed. * Here, move the data pointer forward by Ethernet header size. */ PKTPULL(dhd->osh, pkt, ETHER_HDR_LEN); ptr = PKTDATA(dhd->osh, pkt) - (dhd->prot->tx_metadata_offset); bcm_print_bytes("txmetadata", ptr, txstatus->metadata_len); dhd_prot_print_metadata(dhd, ptr, txstatus->metadata_len); } #endif /* DHD_DBG_SHOW_METADATA */ #ifdef DHD_HP2P if (dhd->hp2p_capable && flow_ring_node->flow_info.tid == HP2P_PRIO) { #ifdef DHD_HP2P_DEBUG bcm_print_bytes("txcpl", (uint8 *)txstatus, sizeof(host_txbuf_cmpl_t)); #endif /* DHD_HP2P_DEBUG */ dhd_update_hp2p_txstats(dhd, txstatus); } #endif /* DHD_HP2P */ #ifdef DHD_LBUF_AUDIT PKTAUDIT(dhd->osh, pkt); #endif // endif DHD_FLOWRING_TXSTATUS_CNT_UPDATE(dhd->bus, txstatus->compl_hdr.flow_ring_id, txstatus->tx_status); DHD_RING_UNLOCK(ring->ring_lock, flags); PKTFREE(dhd->osh, pkt, TRUE); return; } /* dhd_prot_txstatus_process */ /** called on MSG_TYPE_WL_EVENT message received from dongle */ static void dhd_prot_event_process(dhd_pub_t *dhd, void *msg) { wlevent_req_msg_t *evnt; uint32 bufid; uint16 buflen; int ifidx = 0; void* pkt; dhd_prot_t *prot = dhd->prot; /* Event complete header */ evnt = (wlevent_req_msg_t *)msg; bufid = ltoh32(evnt->cmn_hdr.request_id); #if defined(DHD_PKTID_AUDIT_RING) DHD_PKTID_AUDIT_RING_DEBUG(dhd, dhd->prot->pktid_ctrl_map, bufid, DHD_DUPLICATE_FREE, msg, D2HRING_CTRL_CMPLT_ITEMSIZE); #endif // endif buflen = ltoh16(evnt->event_data_len); ifidx = BCMMSGBUF_API_IFIDX(&evnt->cmn_hdr); /* Post another rxbuf to the device */ if (prot->cur_event_bufs_posted) prot->cur_event_bufs_posted--; dhd_msgbuf_rxbuf_post_event_bufs(dhd); pkt = dhd_prot_packet_get(dhd, bufid, PKTTYPE_EVENT_RX, TRUE); if (!pkt) { DHD_ERROR(("%s: pkt is NULL for pktid %d\n", __FUNCTION__, bufid)); return; } /* DMA RX offset updated through shared area */ if (dhd->prot->rx_dataoffset) PKTPULL(dhd->osh, pkt, dhd->prot->rx_dataoffset); PKTSETLEN(dhd->osh, pkt, buflen); #ifdef DHD_LBUF_AUDIT PKTAUDIT(dhd->osh, pkt); #endif // endif dhd_bus_rx_frame(dhd->bus, pkt, ifidx, 1); } /** called on MSG_TYPE_INFO_BUF_CMPLT message received from dongle */ static void BCMFASTPATH dhd_prot_process_infobuf_complete(dhd_pub_t *dhd, void* buf) { info_buf_resp_t *resp; uint32 pktid; uint16 buflen; void * pkt; resp = (info_buf_resp_t *)buf; pktid = ltoh32(resp->cmn_hdr.request_id); buflen = ltoh16(resp->info_data_len); #ifdef DHD_PKTID_AUDIT_RING DHD_PKTID_AUDIT_RING_DEBUG(dhd, dhd->prot->pktid_ctrl_map, pktid, DHD_DUPLICATE_FREE, buf, D2HRING_INFO_BUFCMPLT_ITEMSIZE); #endif /* DHD_PKTID_AUDIT_RING */ DHD_INFO(("id 0x%04x, len %d, phase 0x%02x, seqnum %d, rx_dataoffset %d\n", pktid, buflen, resp->cmn_hdr.flags, ltoh16(resp->seqnum), dhd->prot->rx_dataoffset)); if (dhd->debug_buf_dest_support) { if (resp->dest < DEBUG_BUF_DEST_MAX) { dhd->debug_buf_dest_stat[resp->dest]++; } } pkt = dhd_prot_packet_get(dhd, pktid, PKTTYPE_INFO_RX, TRUE); if (!pkt) return; /* DMA RX offset updated through shared area */ if (dhd->prot->rx_dataoffset) PKTPULL(dhd->osh, pkt, dhd->prot->rx_dataoffset); PKTSETLEN(dhd->osh, pkt, buflen); #ifdef DHD_LBUF_AUDIT PKTAUDIT(dhd->osh, pkt); #endif // endif /* info ring "debug" data, which is not a 802.3 frame, is sent/hacked with a * special ifidx of -1. This is just internal to dhd to get the data to * dhd_linux.c:dhd_rx_frame() from here (dhd_prot_infobuf_cmplt_process). */ dhd_bus_rx_frame(dhd->bus, pkt, DHD_DUMMY_INFO_IF /* ifidx HACK */, 1); } /** called on MSG_TYPE_SNAPSHOT_CMPLT message received from dongle */ static void BCMFASTPATH dhd_prot_process_snapshot_complete(dhd_pub_t *dhd, void *buf) { } /** Stop protocol: sync w/dongle state. */ void dhd_prot_stop(dhd_pub_t *dhd) { ASSERT(dhd); DHD_TRACE(("%s: Enter\n", __FUNCTION__)); } /* Add any protocol-specific data header. * Caller must reserve prot_hdrlen prepend space. */ void BCMFASTPATH dhd_prot_hdrpush(dhd_pub_t *dhd, int ifidx, void *PKTBUF) { return; } uint dhd_prot_hdrlen(dhd_pub_t *dhd, void *PKTBUF) { return 0; } #define MAX_MTU_SZ (1600u) #define PKTBUF pktbuf /** * Called when a tx ethernet packet has been dequeued from a flow queue, and has to be inserted in * the corresponding flow ring. */ int BCMFASTPATH dhd_prot_txdata(dhd_pub_t *dhd, void *PKTBUF, uint8 ifidx) { unsigned long flags; dhd_prot_t *prot = dhd->prot; host_txbuf_post_t *txdesc = NULL; dmaaddr_t pa, meta_pa; uint8 *pktdata; uint32 pktlen; uint32 pktid; uint8 prio; uint16 flowid = 0; uint16 alloced = 0; uint16 headroom; msgbuf_ring_t *ring; flow_ring_table_t *flow_ring_table; flow_ring_node_t *flow_ring_node; if (dhd->flow_ring_table == NULL) { DHD_ERROR(("dhd flow_ring_table is NULL\n")); return BCME_NORESOURCE; } #ifdef DHD_PCIE_PKTID if (!DHD_PKTID_AVAIL(dhd->prot->pktid_tx_map)) { if (dhd->prot->pktid_depleted_cnt == DHD_PKTID_DEPLETED_MAX_COUNT) { dhd_bus_stop_queue(dhd->bus); dhd->prot->no_tx_resource = TRUE; } dhd->prot->pktid_depleted_cnt++; goto err_no_res; } else { dhd->prot->pktid_depleted_cnt = 0; } #endif /* DHD_PCIE_PKTID */ flowid = DHD_PKT_GET_FLOWID(PKTBUF); flow_ring_table = (flow_ring_table_t *)dhd->flow_ring_table; flow_ring_node = (flow_ring_node_t *)&flow_ring_table[flowid]; ring = (msgbuf_ring_t *)flow_ring_node->prot_info; DHD_RING_LOCK(ring->ring_lock, flags); /* Create a unique 32-bit packet id */ pktid = DHD_NATIVE_TO_PKTID_RSV(dhd, dhd->prot->pktid_tx_map, PKTBUF, PKTTYPE_DATA_TX); #if defined(DHD_PCIE_PKTID) if (pktid == DHD_PKTID_INVALID) { DHD_ERROR_RLMT(("%s: Pktid pool depleted.\n", __FUNCTION__)); /* * If we return error here, the caller would queue the packet * again. So we'll just free the skb allocated in DMA Zone. * Since we have not freed the original SKB yet the caller would * requeue the same. */ goto err_no_res_pktfree; } #endif /* DHD_PCIE_PKTID */ /* Reserve space in the circular buffer */ txdesc = (host_txbuf_post_t *) dhd_prot_alloc_ring_space(dhd, ring, 1, &alloced, FALSE); if (txdesc == NULL) { DHD_INFO(("%s:%d: HTOD Msgbuf Not available TxCount = %d\n", __FUNCTION__, __LINE__, OSL_ATOMIC_READ(dhd->osh, &prot->active_tx_count))); goto err_free_pktid; } /* Extract the data pointer and length information */ pktdata = PKTDATA(dhd->osh, PKTBUF); pktlen = PKTLEN(dhd->osh, PKTBUF); DHD_DBG_PKT_MON_TX(dhd, PKTBUF, pktid); /* Ethernet header: Copy before we cache flush packet using DMA_MAP */ bcopy(pktdata, txdesc->txhdr, ETHER_HDR_LEN); /* Extract the ethernet header and adjust the data pointer and length */ pktdata = PKTPULL(dhd->osh, PKTBUF, ETHER_HDR_LEN); pktlen -= ETHER_HDR_LEN; /* Map the data pointer to a DMA-able address */ if (SECURE_DMA_ENAB(dhd->osh)) { int offset = 0; BCM_REFERENCE(offset); if (prot->tx_metadata_offset) offset = prot->tx_metadata_offset + ETHER_HDR_LEN; pa = SECURE_DMA_MAP(dhd->osh, PKTDATA(dhd->osh, PKTBUF), pktlen, DMA_TX, PKTBUF, 0, ring->dma_buf.secdma, offset); } #ifndef BCM_SECURE_DMA else pa = DMA_MAP(dhd->osh, PKTDATA(dhd->osh, PKTBUF), pktlen, DMA_TX, PKTBUF, 0); #endif /* #ifndef BCM_SECURE_DMA */ if (PHYSADDRISZERO(pa)) { DHD_ERROR(("%s: Something really bad, unless 0 is " "a valid phyaddr for pa\n", __FUNCTION__)); ASSERT(0); goto err_rollback_idx; } #ifdef DMAMAP_STATS dhd->dma_stats.txdata++; dhd->dma_stats.txdata_sz += pktlen; #endif /* DMAMAP_STATS */ /* No need to lock. Save the rest of the packet's metadata */ DHD_NATIVE_TO_PKTID_SAVE(dhd, dhd->prot->pktid_tx_map, PKTBUF, pktid, pa, pktlen, DMA_TX, NULL, ring->dma_buf.secdma, PKTTYPE_DATA_TX); #ifdef TXP_FLUSH_NITEMS if (ring->pend_items_count == 0) ring->start_addr = (void *)txdesc; ring->pend_items_count++; #endif // endif /* Form the Tx descriptor message buffer */ /* Common message hdr */ txdesc->cmn_hdr.msg_type = MSG_TYPE_TX_POST; txdesc->cmn_hdr.if_id = ifidx; txdesc->cmn_hdr.flags = ring->current_phase; txdesc->flags = BCMPCIE_PKT_FLAGS_FRAME_802_3; prio = (uint8)PKTPRIO(PKTBUF); txdesc->flags |= (prio & 0x7) << BCMPCIE_PKT_FLAGS_PRIO_SHIFT; txdesc->seg_cnt = 1; txdesc->data_len = htol16((uint16) pktlen); txdesc->data_buf_addr.high_addr = htol32(PHYSADDRHI(pa)); txdesc->data_buf_addr.low_addr = htol32(PHYSADDRLO(pa)); /* Move data pointer to keep ether header in local PKTBUF for later reference */ PKTPUSH(dhd->osh, PKTBUF, ETHER_HDR_LEN); /* Handle Tx metadata */ headroom = (uint16)PKTHEADROOM(dhd->osh, PKTBUF); if (prot->tx_metadata_offset && (headroom < prot->tx_metadata_offset)) DHD_ERROR(("No headroom for Metadata tx %d %d\n", prot->tx_metadata_offset, headroom)); if (prot->tx_metadata_offset && (headroom >= prot->tx_metadata_offset)) { DHD_TRACE(("Metadata in tx %d\n", prot->tx_metadata_offset)); /* Adjust the data pointer to account for meta data in DMA_MAP */ PKTPUSH(dhd->osh, PKTBUF, prot->tx_metadata_offset); if (SECURE_DMA_ENAB(dhd->osh)) { meta_pa = SECURE_DMA_MAP_TXMETA(dhd->osh, PKTDATA(dhd->osh, PKTBUF), prot->tx_metadata_offset + ETHER_HDR_LEN, DMA_RX, PKTBUF, 0, ring->dma_buf.secdma); } #ifndef BCM_SECURE_DMA else meta_pa = DMA_MAP(dhd->osh, PKTDATA(dhd->osh, PKTBUF), prot->tx_metadata_offset, DMA_RX, PKTBUF, 0); #endif /* #ifndef BCM_SECURE_DMA */ if (PHYSADDRISZERO(meta_pa)) { /* Unmap the data pointer to a DMA-able address */ if (SECURE_DMA_ENAB(dhd->osh)) { int offset = 0; BCM_REFERENCE(offset); if (prot->tx_metadata_offset) { offset = prot->tx_metadata_offset + ETHER_HDR_LEN; } SECURE_DMA_UNMAP(dhd->osh, pa, pktlen, DMA_TX, 0, DHD_DMAH_NULL, ring->dma_buf.secdma, offset); } #ifndef BCM_SECURE_DMA else { DMA_UNMAP(dhd->osh, pa, pktlen, DMA_TX, 0, DHD_DMAH_NULL); } #endif /* #ifndef BCM_SECURE_DMA */ #ifdef TXP_FLUSH_NITEMS /* update pend_items_count */ ring->pend_items_count--; #endif /* TXP_FLUSH_NITEMS */ DHD_ERROR(("%s: Something really bad, unless 0 is " "a valid phyaddr for meta_pa\n", __FUNCTION__)); ASSERT(0); goto err_rollback_idx; } /* Adjust the data pointer back to original value */ PKTPULL(dhd->osh, PKTBUF, prot->tx_metadata_offset); txdesc->metadata_buf_len = prot->tx_metadata_offset; txdesc->metadata_buf_addr.high_addr = htol32(PHYSADDRHI(meta_pa)); txdesc->metadata_buf_addr.low_addr = htol32(PHYSADDRLO(meta_pa)); } else { #ifdef DHD_HP2P if (dhd->hp2p_capable && flow_ring_node->flow_info.tid == HP2P_PRIO) { dhd_update_hp2p_txdesc(dhd, txdesc); } else #endif /* DHD_HP2P */ if (1) { txdesc->metadata_buf_len = htol16(0); txdesc->metadata_buf_addr.high_addr = 0; txdesc->metadata_buf_addr.low_addr = 0; } } #ifdef DHD_PKTID_AUDIT_RING DHD_PKTID_AUDIT(dhd, prot->pktid_tx_map, pktid, DHD_DUPLICATE_ALLOC); #endif /* DHD_PKTID_AUDIT_RING */ txdesc->cmn_hdr.request_id = htol32(pktid); DHD_TRACE(("txpost: data_len %d, pktid 0x%04x\n", txdesc->data_len, txdesc->cmn_hdr.request_id)); #ifdef DHD_LBUF_AUDIT PKTAUDIT(dhd->osh, PKTBUF); #endif // endif if (pktlen > MAX_MTU_SZ) { DHD_ERROR(("%s: ######## pktlen(%d) > MAX_MTU_SZ(%d) #######\n", __FUNCTION__, pktlen, MAX_MTU_SZ)); dhd_prhex("txringitem", (volatile uchar*)txdesc, sizeof(host_txbuf_post_t), DHD_ERROR_VAL); } /* Update the write pointer in TCM & ring bell */ #if defined(DHD_HP2P) && defined(TXP_FLUSH_NITEMS) if (dhd->hp2p_capable && flow_ring_node->flow_info.tid == HP2P_PRIO) { dhd_calc_hp2p_burst(dhd, ring, flowid); } else { if ((ring->pend_items_count == prot->txp_threshold) || ((uint8 *) txdesc == (uint8 *) DHD_RING_END_VA(ring))) { dhd_prot_txdata_write_flush(dhd, flowid); } } #elif defined(TXP_FLUSH_NITEMS) /* Flush if we have either hit the txp_threshold or if this msg is */ /* occupying the last slot in the flow_ring - before wrap around. */ if ((ring->pend_items_count == prot->txp_threshold) || ((uint8 *) txdesc == (uint8 *) DHD_RING_END_VA(ring))) { dhd_prot_txdata_write_flush(dhd, flowid); } #else /* update ring's WR index and ring doorbell to dongle */ dhd_prot_ring_write_complete(dhd, ring, txdesc, 1); #endif /* DHD_HP2P && TXP_FLUSH_NITEMS */ #if defined(TX_STATUS_LATENCY_STATS) /* set the time when pkt is queued to flowring */ DHD_PKT_SET_QTIME(PKTBUF, OSL_SYSUPTIME_US()); #endif // endif OSL_ATOMIC_INC(dhd->osh, &prot->active_tx_count); /* * Take a wake lock, do not sleep if we have atleast one packet * to finish. */ DHD_TXFL_WAKE_LOCK_TIMEOUT(dhd, MAX_TX_TIMEOUT); DHD_RING_UNLOCK(ring->ring_lock, flags); #ifdef TX_STATUS_LATENCY_STATS flow_ring_node->flow_info.num_tx_pkts++; #endif /* TX_STATUS_LATENCY_STATS */ return BCME_OK; err_rollback_idx: /* roll back write pointer for unprocessed message */ if (ring->wr == 0) { ring->wr = ring->max_items - 1; } else { ring->wr--; if (ring->wr == 0) { DHD_INFO(("%s: flipping the phase now\n", ring->name)); ring->current_phase = ring->current_phase ? 0 : BCMPCIE_CMNHDR_PHASE_BIT_INIT; } } err_free_pktid: #if defined(DHD_PCIE_PKTID) { void *dmah; void *secdma; /* Free up the PKTID. physaddr and pktlen will be garbage. */ DHD_PKTID_TO_NATIVE(dhd, dhd->prot->pktid_tx_map, pktid, pa, pktlen, dmah, secdma, PKTTYPE_NO_CHECK); } err_no_res_pktfree: #endif /* DHD_PCIE_PKTID */ DHD_RING_UNLOCK(ring->ring_lock, flags); err_no_res: return BCME_NORESOURCE; } /* dhd_prot_txdata */ /* called with a ring_lock */ /** optimization to write "n" tx items at a time to ring */ void BCMFASTPATH dhd_prot_txdata_write_flush(dhd_pub_t *dhd, uint16 flowid) { #ifdef TXP_FLUSH_NITEMS flow_ring_table_t *flow_ring_table; flow_ring_node_t *flow_ring_node; msgbuf_ring_t *ring; if (dhd->flow_ring_table == NULL) { return; } flow_ring_table = (flow_ring_table_t *)dhd->flow_ring_table; flow_ring_node = (flow_ring_node_t *)&flow_ring_table[flowid]; ring = (msgbuf_ring_t *)flow_ring_node->prot_info; if (ring->pend_items_count) { /* update ring's WR index and ring doorbell to dongle */ dhd_prot_ring_write_complete(dhd, ring, ring->start_addr, ring->pend_items_count); ring->pend_items_count = 0; ring->start_addr = NULL; } #endif /* TXP_FLUSH_NITEMS */ } #undef PKTBUF /* Only defined in the above routine */ int BCMFASTPATH dhd_prot_hdrpull(dhd_pub_t *dhd, int *ifidx, void *pkt, uchar *buf, uint *len) { return 0; } /** post a set of receive buffers to the dongle */ static void BCMFASTPATH dhd_prot_return_rxbuf(dhd_pub_t *dhd, uint32 pktid, uint32 rxcnt) { dhd_prot_t *prot = dhd->prot; #if defined(DHD_LB_RXC) int elem_ix; uint32 *elem; bcm_workq_t *workq; workq = &prot->rx_compl_prod; /* Produce the work item */ elem_ix = bcm_ring_prod(WORKQ_RING(workq), DHD_LB_WORKQ_SZ); if (elem_ix == BCM_RING_FULL) { DHD_ERROR(("%s LB RxCompl workQ is full\n", __FUNCTION__)); ASSERT(0); return; } elem = WORKQ_ELEMENT(uint32, workq, elem_ix); *elem = pktid; smp_wmb(); /* Sync WR index to consumer if the SYNC threshold has been reached */ if (++prot->rx_compl_prod_sync >= DHD_LB_WORKQ_SYNC) { bcm_workq_prod_sync(workq); prot->rx_compl_prod_sync = 0; } DHD_INFO(("%s: rx_compl_prod pktid<%u> sync<%d>\n", __FUNCTION__, pktid, prot->rx_compl_prod_sync)); #endif /* DHD_LB_RXC */ if (prot->rxbufpost >= rxcnt) { prot->rxbufpost -= (uint16)rxcnt; } else { /* ASSERT(0); */ prot->rxbufpost = 0; } #if !defined(DHD_LB_RXC) if (prot->rxbufpost <= (prot->max_rxbufpost - RXBUFPOST_THRESHOLD)) dhd_msgbuf_rxbuf_post(dhd, FALSE); /* alloc pkt ids */ #endif /* !DHD_LB_RXC */ return; } /* called before an ioctl is sent to the dongle */ static void dhd_prot_wlioctl_intercept(dhd_pub_t *dhd, wl_ioctl_t * ioc, void * buf) { dhd_prot_t *prot = dhd->prot; int slen = 0; if (ioc->cmd == WLC_SET_VAR && buf != NULL && !strcmp(buf, "pcie_bus_tput")) { pcie_bus_tput_params_t *tput_params; slen = strlen("pcie_bus_tput") + 1; tput_params = (pcie_bus_tput_params_t*)((char *)buf + slen); bcopy(&prot->host_bus_throughput_buf.pa, &tput_params->host_buf_addr, sizeof(tput_params->host_buf_addr)); tput_params->host_buf_len = DHD_BUS_TPUT_BUF_LEN; } } /* called after an ioctl returns from dongle */ static void dhd_prot_wl_ioctl_ret_intercept(dhd_pub_t *dhd, wl_ioctl_t * ioc, void * buf, int ifidx, int ret, int len) { if (!ret && ioc->cmd == WLC_SET_VAR && buf != NULL) { /* Intercept the wme_dp ioctl here */ if (!strcmp(buf, "wme_dp")) { int slen, val = 0; slen = strlen("wme_dp") + 1; if (len >= (int)(slen + sizeof(int))) bcopy(((char *)buf + slen), &val, sizeof(int)); dhd->wme_dp = (uint8) ltoh32(val); } } } #ifdef DHD_PM_CONTROL_FROM_FILE extern bool g_pm_control; #endif /* DHD_PM_CONTROL_FROM_FILE */ /** Use protocol to issue ioctl to dongle. Only one ioctl may be in transit. */ int dhd_prot_ioctl(dhd_pub_t *dhd, int ifidx, wl_ioctl_t * ioc, void * buf, int len) { int ret = -1; uint8 action; if (dhd->bus->is_linkdown) { DHD_ERROR_RLMT(("%s : PCIe link is down. we have nothing to do\n", __FUNCTION__)); goto done; } if (dhd_query_bus_erros(dhd)) { DHD_ERROR_RLMT(("%s : some BUS error. we have nothing to do\n", __FUNCTION__)); goto done; } if ((dhd->busstate == DHD_BUS_DOWN) || dhd->hang_was_sent) { DHD_ERROR_RLMT(("%s : bus is down. we have nothing to do -" " bus state: %d, sent hang: %d\n", __FUNCTION__, dhd->busstate, dhd->hang_was_sent)); goto done; } if (dhd->busstate == DHD_BUS_SUSPEND) { DHD_ERROR(("%s : bus is suspended\n", __FUNCTION__)); goto done; } DHD_TRACE(("%s: Enter\n", __FUNCTION__)); if (ioc->cmd == WLC_SET_PM) { #ifdef DHD_PM_CONTROL_FROM_FILE if (g_pm_control == TRUE) { DHD_ERROR(("%s: SET PM ignored!(Requested:%d)\n", __FUNCTION__, buf ? *(char *)buf : 0)); goto done; } #endif /* DHD_PM_CONTROL_FROM_FILE */ DHD_TRACE_HW4(("%s: SET PM to %d\n", __FUNCTION__, buf ? *(char *)buf : 0)); } ASSERT(len <= WLC_IOCTL_MAXLEN); if (len > WLC_IOCTL_MAXLEN) goto done; action = ioc->set; dhd_prot_wlioctl_intercept(dhd, ioc, buf); if (action & WL_IOCTL_ACTION_SET) { ret = dhd_msgbuf_set_ioctl(dhd, ifidx, ioc->cmd, buf, len, action); } else { ret = dhd_msgbuf_query_ioctl(dhd, ifidx, ioc->cmd, buf, len, action); if (ret > 0) ioc->used = ret; } /* Too many programs assume ioctl() returns 0 on success */ if (ret >= 0) { ret = 0; } else { DHD_INFO(("%s: status ret value is %d \n", __FUNCTION__, ret)); dhd->dongle_error = ret; } dhd_prot_wl_ioctl_ret_intercept(dhd, ioc, buf, ifidx, ret, len); done: return ret; } /* dhd_prot_ioctl */ /** test / loopback */ int dhdmsgbuf_lpbk_req(dhd_pub_t *dhd, uint len) { unsigned long flags; dhd_prot_t *prot = dhd->prot; uint16 alloced = 0; ioct_reqst_hdr_t *ioct_rqst; uint16 hdrlen = sizeof(ioct_reqst_hdr_t); uint16 msglen = len + hdrlen; msgbuf_ring_t *ring = &prot->h2dring_ctrl_subn; msglen = ALIGN_SIZE(msglen, DMA_ALIGN_LEN); msglen = LIMIT_TO_MAX(msglen, MSGBUF_MAX_MSG_SIZE); DHD_RING_LOCK(ring->ring_lock, flags); ioct_rqst = (ioct_reqst_hdr_t *) dhd_prot_alloc_ring_space(dhd, ring, 1, &alloced, FALSE); if (ioct_rqst == NULL) { DHD_RING_UNLOCK(ring->ring_lock, flags); return 0; } { uint8 *ptr; uint16 i; ptr = (uint8 *)ioct_rqst; for (i = 0; i < msglen; i++) { ptr[i] = i % 256; } } /* Common msg buf hdr */ ioct_rqst->msg.epoch = ring->seqnum % H2D_EPOCH_MODULO; ring->seqnum++; ioct_rqst->msg.msg_type = MSG_TYPE_LOOPBACK; ioct_rqst->msg.if_id = 0; ioct_rqst->msg.flags = ring->current_phase; bcm_print_bytes("LPBK REQ: ", (uint8 *)ioct_rqst, msglen); /* update ring's WR index and ring doorbell to dongle */ dhd_prot_ring_write_complete(dhd, ring, ioct_rqst, 1); DHD_RING_UNLOCK(ring->ring_lock, flags); return 0; } /** test / loopback */ void dmaxfer_free_dmaaddr(dhd_pub_t *dhd, dhd_dmaxfer_t *dmaxfer) { if (dmaxfer == NULL) return; dhd_dma_buf_free(dhd, &dmaxfer->srcmem); dhd_dma_buf_free(dhd, &dmaxfer->dstmem); } /** test / loopback */ int dhd_prepare_schedule_dmaxfer_free(dhd_pub_t *dhdp) { dhd_prot_t *prot = dhdp->prot; dhd_dmaxfer_t *dmaxfer = &prot->dmaxfer; dmaxref_mem_map_t *dmap = NULL; dmap = MALLOCZ(dhdp->osh, sizeof(dmaxref_mem_map_t)); if (!dmap) { DHD_ERROR(("%s: dmap alloc failed\n", __FUNCTION__)); goto mem_alloc_fail; } dmap->srcmem = &(dmaxfer->srcmem); dmap->dstmem = &(dmaxfer->dstmem); DMAXFER_FREE(dhdp, dmap); return BCME_OK; mem_alloc_fail: if (dmap) { MFREE(dhdp->osh, dmap, sizeof(dmaxref_mem_map_t)); dmap = NULL; } return BCME_NOMEM; } /* dhd_prepare_schedule_dmaxfer_free */ /** test / loopback */ void dmaxfer_free_prev_dmaaddr(dhd_pub_t *dhdp, dmaxref_mem_map_t *dmmap) { dhd_dma_buf_free(dhdp, dmmap->srcmem); dhd_dma_buf_free(dhdp, dmmap->dstmem); MFREE(dhdp->osh, dmmap, sizeof(dmaxref_mem_map_t)); dhdp->bus->dmaxfer_complete = TRUE; dhd_os_dmaxfer_wake(dhdp); dmmap = NULL; } /* dmaxfer_free_prev_dmaaddr */ /** test / loopback */ int dmaxfer_prepare_dmaaddr(dhd_pub_t *dhd, uint len, uint srcdelay, uint destdelay, dhd_dmaxfer_t *dmaxfer) { uint i = 0, j = 0; if (!dmaxfer) return BCME_ERROR; /* First free up existing buffers */ dmaxfer_free_dmaaddr(dhd, dmaxfer); if (dhd_dma_buf_alloc(dhd, &dmaxfer->srcmem, len)) { return BCME_NOMEM; } if (dhd_dma_buf_alloc(dhd, &dmaxfer->dstmem, len + 8)) { dhd_dma_buf_free(dhd, &dmaxfer->srcmem); return BCME_NOMEM; } dmaxfer->len = len; /* Populate source with a pattern like below * 0x00000000 * 0x01010101 * 0x02020202 * 0x03030303 * 0x04040404 * 0x05050505 * ... * 0xFFFFFFFF */ while (i < dmaxfer->len) { ((uint8*)dmaxfer->srcmem.va)[i] = j % 256; i++; if (i % 4 == 0) { j++; } } OSL_CACHE_FLUSH(dmaxfer->srcmem.va, dmaxfer->len); dmaxfer->srcdelay = srcdelay; dmaxfer->destdelay = destdelay; return BCME_OK; } /* dmaxfer_prepare_dmaaddr */ static void dhd_msgbuf_dmaxfer_process(dhd_pub_t *dhd, void *msg) { dhd_prot_t *prot = dhd->prot; uint64 end_usec; pcie_dmaxfer_cmplt_t *cmplt = (pcie_dmaxfer_cmplt_t *)msg; int buf_free_scheduled; BCM_REFERENCE(cmplt); end_usec = OSL_SYSUPTIME_US(); DHD_ERROR(("DMA loopback status: %d\n", cmplt->compl_hdr.status)); prot->dmaxfer.status = cmplt->compl_hdr.status; OSL_CACHE_INV(prot->dmaxfer.dstmem.va, prot->dmaxfer.len); if (prot->dmaxfer.srcmem.va && prot->dmaxfer.dstmem.va) { if (memcmp(prot->dmaxfer.srcmem.va, prot->dmaxfer.dstmem.va, prot->dmaxfer.len) || cmplt->compl_hdr.status != BCME_OK) { DHD_ERROR(("DMA loopback failed\n")); /* it is observed that some times the completion * header status is set as OK, but the memcmp fails * hence always explicitly set the dmaxfer status * as error if this happens. */ prot->dmaxfer.status = BCME_ERROR; prhex("XFER SRC: ", prot->dmaxfer.srcmem.va, prot->dmaxfer.len); prhex("XFER DST: ", prot->dmaxfer.dstmem.va, prot->dmaxfer.len); } else { switch (prot->dmaxfer.d11_lpbk) { case M2M_DMA_LPBK: { DHD_ERROR(("DMA successful pcie m2m DMA loopback\n")); } break; case D11_LPBK: { DHD_ERROR(("DMA successful with d11 loopback\n")); } break; case BMC_LPBK: { DHD_ERROR(("DMA successful with bmc loopback\n")); } break; case M2M_NON_DMA_LPBK: { DHD_ERROR(("DMA successful pcie m2m NON DMA loopback\n")); } break; case D11_HOST_MEM_LPBK: { DHD_ERROR(("DMA successful d11 host mem loopback\n")); } break; case BMC_HOST_MEM_LPBK: { DHD_ERROR(("DMA successful bmc host mem loopback\n")); } break; default: { DHD_ERROR(("Invalid loopback option\n")); } break; } if (DHD_LPBKDTDUMP_ON()) { /* debug info print of the Tx and Rx buffers */ dhd_prhex("XFER SRC: ", prot->dmaxfer.srcmem.va, prot->dmaxfer.len, DHD_INFO_VAL); dhd_prhex("XFER DST: ", prot->dmaxfer.dstmem.va, prot->dmaxfer.len, DHD_INFO_VAL); } } } buf_free_scheduled = dhd_prepare_schedule_dmaxfer_free(dhd); end_usec -= prot->dmaxfer.start_usec; if (end_usec) { prot->dmaxfer.time_taken = end_usec; DHD_ERROR(("DMA loopback %d bytes in %lu usec, %u kBps\n", prot->dmaxfer.len, (unsigned long)end_usec, (prot->dmaxfer.len * (1000 * 1000 / 1024) / (uint32)end_usec))); } dhd->prot->dmaxfer.in_progress = FALSE; if (buf_free_scheduled != BCME_OK) { dhd->bus->dmaxfer_complete = TRUE; dhd_os_dmaxfer_wake(dhd); } } /** Test functionality. * Transfers bytes from host to dongle and to host again using DMA * This function is not reentrant, as prot->dmaxfer.in_progress is not protected * by a spinlock. */ int dhdmsgbuf_dmaxfer_req(dhd_pub_t *dhd, uint len, uint srcdelay, uint destdelay, uint d11_lpbk, uint core_num) { unsigned long flags; int ret = BCME_OK; dhd_prot_t *prot = dhd->prot; pcie_dma_xfer_params_t *dmap; uint32 xferlen = LIMIT_TO_MAX(len, DMA_XFER_LEN_LIMIT); uint16 alloced = 0; msgbuf_ring_t *ring = &prot->h2dring_ctrl_subn; if (prot->dmaxfer.in_progress) { DHD_ERROR(("DMA is in progress...\n")); return BCME_ERROR; } if (d11_lpbk >= MAX_LPBK) { DHD_ERROR(("loopback mode should be either" " 0-PCIE_M2M_DMA, 1-D11, 2-BMC or 3-PCIE_M2M_NonDMA\n")); return BCME_ERROR; } DHD_RING_LOCK(ring->ring_lock, flags); prot->dmaxfer.in_progress = TRUE; if ((ret = dmaxfer_prepare_dmaaddr(dhd, xferlen, srcdelay, destdelay, &prot->dmaxfer)) != BCME_OK) { prot->dmaxfer.in_progress = FALSE; DHD_RING_UNLOCK(ring->ring_lock, flags); return ret; } dmap = (pcie_dma_xfer_params_t *) dhd_prot_alloc_ring_space(dhd, ring, 1, &alloced, FALSE); if (dmap == NULL) { dmaxfer_free_dmaaddr(dhd, &prot->dmaxfer); prot->dmaxfer.in_progress = FALSE; DHD_RING_UNLOCK(ring->ring_lock, flags); return BCME_NOMEM; } /* Common msg buf hdr */ dmap->cmn_hdr.msg_type = MSG_TYPE_LPBK_DMAXFER; dmap->cmn_hdr.request_id = htol32(DHD_FAKE_PKTID); dmap->cmn_hdr.epoch = ring->seqnum % H2D_EPOCH_MODULO; dmap->cmn_hdr.flags = ring->current_phase; ring->seqnum++; dmap->host_input_buf_addr.high = htol32(PHYSADDRHI(prot->dmaxfer.srcmem.pa)); dmap->host_input_buf_addr.low = htol32(PHYSADDRLO(prot->dmaxfer.srcmem.pa)); dmap->host_ouput_buf_addr.high = htol32(PHYSADDRHI(prot->dmaxfer.dstmem.pa)); dmap->host_ouput_buf_addr.low = htol32(PHYSADDRLO(prot->dmaxfer.dstmem.pa)); dmap->xfer_len = htol32(prot->dmaxfer.len); dmap->srcdelay = htol32(prot->dmaxfer.srcdelay); dmap->destdelay = htol32(prot->dmaxfer.destdelay); prot->dmaxfer.d11_lpbk = d11_lpbk; dmap->flags = (((core_num & PCIE_DMA_XFER_FLG_CORE_NUMBER_MASK) << PCIE_DMA_XFER_FLG_CORE_NUMBER_SHIFT) | ((prot->dmaxfer.d11_lpbk & PCIE_DMA_XFER_FLG_D11_LPBK_MASK) << PCIE_DMA_XFER_FLG_D11_LPBK_SHIFT)); prot->dmaxfer.start_usec = OSL_SYSUPTIME_US(); /* update ring's WR index and ring doorbell to dongle */ dhd_prot_ring_write_complete(dhd, ring, dmap, 1); DHD_RING_UNLOCK(ring->ring_lock, flags); DHD_ERROR(("DMA loopback Started...\n")); return BCME_OK; } /* dhdmsgbuf_dmaxfer_req */ int dhdmsgbuf_dmaxfer_status(dhd_pub_t *dhd, dma_xfer_info_t *result) { dhd_prot_t *prot = dhd->prot; if (prot->dmaxfer.in_progress) result->status = DMA_XFER_IN_PROGRESS; else if (prot->dmaxfer.status == 0) result->status = DMA_XFER_SUCCESS; else result->status = DMA_XFER_FAILED; result->type = prot->dmaxfer.d11_lpbk; result->error_code = prot->dmaxfer.status; result->num_bytes = prot->dmaxfer.len; result->time_taken = prot->dmaxfer.time_taken; if (prot->dmaxfer.time_taken) { /* throughput in kBps */ result->tput = (prot->dmaxfer.len * (1000 * 1000 / 1024)) / (uint32)prot->dmaxfer.time_taken; } return BCME_OK; } /** Called in the process of submitting an ioctl to the dongle */ static int dhd_msgbuf_query_ioctl(dhd_pub_t *dhd, int ifidx, uint cmd, void *buf, uint len, uint8 action) { int ret = 0; uint copylen = 0; DHD_TRACE(("%s: Enter\n", __FUNCTION__)); if (dhd->bus->is_linkdown) { DHD_ERROR(("%s : PCIe link is down. we have nothing to do\n", __FUNCTION__)); return -EIO; } if (dhd->busstate == DHD_BUS_DOWN) { DHD_ERROR(("%s : bus is down. we have nothing to do\n", __FUNCTION__)); return -EIO; } /* don't talk to the dongle if fw is about to be reloaded */ if (dhd->hang_was_sent) { DHD_ERROR(("%s: HANG was sent up earlier. Not talking to the chip\n", __FUNCTION__)); return -EIO; } if (cmd == WLC_GET_VAR && buf) { if (!len || !*(uint8 *)buf) { DHD_ERROR(("%s(): Zero length bailing\n", __FUNCTION__)); ret = BCME_BADARG; goto done; } /* Respond "bcmerror" and "bcmerrorstr" with local cache */ copylen = MIN(len, BCME_STRLEN); if ((len >= strlen("bcmerrorstr")) && (!strcmp((char *)buf, "bcmerrorstr"))) { strncpy((char *)buf, bcmerrorstr(dhd->dongle_error), copylen); *(uint8 *)((uint8 *)buf + (copylen - 1)) = '\0'; goto done; } else if ((len >= strlen("bcmerror")) && !strcmp((char *)buf, "bcmerror")) { *(uint32 *)(uint32 *)buf = dhd->dongle_error; goto done; } } DHD_CTL(("query_ioctl: ACTION %d ifdix %d cmd %d len %d \n", action, ifidx, cmd, len)); ret = dhd_fillup_ioct_reqst(dhd, (uint16)len, cmd, buf, ifidx); if (ret < 0) { DHD_ERROR(("%s(): dhd_fillup_ioct_reqst failed \r\n", __FUNCTION__)); goto done; } /* wait for IOCTL completion message from dongle and get first fragment */ ret = dhd_msgbuf_wait_ioctl_cmplt(dhd, len, buf); done: return ret; } void dhd_msgbuf_iovar_timeout_dump(dhd_pub_t *dhd) { uint32 intstatus; dhd_prot_t *prot = dhd->prot; dhd->rxcnt_timeout++; dhd->rx_ctlerrs++; dhd->iovar_timeout_occured = TRUE; DHD_ERROR(("%s: resumed on timeout rxcnt_timeout%s %d ioctl_cmd %d " "trans_id %d state %d busstate=%d ioctl_received=%d\n", __FUNCTION__, dhd->is_sched_error ? " due to scheduling problem" : "", dhd->rxcnt_timeout, prot->curr_ioctl_cmd, prot->ioctl_trans_id, prot->ioctl_state, dhd->busstate, prot->ioctl_received)); #if defined(DHD_KERNEL_SCHED_DEBUG) && defined(DHD_FW_COREDUMP) if (dhd->is_sched_error && dhd->memdump_enabled == DUMP_MEMFILE_BUGON) { /* change g_assert_type to trigger Kernel panic */ g_assert_type = 2; /* use ASSERT() to trigger panic */ ASSERT(0); } #endif /* DHD_KERNEL_SCHED_DEBUG && DHD_FW_COREDUMP */ if (prot->curr_ioctl_cmd == WLC_SET_VAR || prot->curr_ioctl_cmd == WLC_GET_VAR) { char iovbuf[32]; int dump_size = 128; uint8 *ioctl_buf = (uint8 *)prot->ioctbuf.va; memset(iovbuf, 0, sizeof(iovbuf)); strncpy(iovbuf, ioctl_buf, sizeof(iovbuf) - 1); iovbuf[sizeof(iovbuf) - 1] = '\0'; DHD_ERROR(("Current IOVAR (%s): %s\n", prot->curr_ioctl_cmd == WLC_SET_VAR ? "WLC_SET_VAR" : "WLC_GET_VAR", iovbuf)); DHD_ERROR(("========== START IOCTL REQBUF DUMP ==========\n")); prhex("ioctl_buf", (const u8 *) ioctl_buf, dump_size); DHD_ERROR(("\n========== END IOCTL REQBUF DUMP ==========\n")); } /* Check the PCIe link status by reading intstatus register */ intstatus = si_corereg(dhd->bus->sih, dhd->bus->sih->buscoreidx, dhd->bus->pcie_mailbox_int, 0, 0); if (intstatus == (uint32)-1) { DHD_ERROR(("%s : PCIe link might be down\n", __FUNCTION__)); dhd->bus->is_linkdown = TRUE; } dhd_bus_dump_console_buffer(dhd->bus); dhd_prot_debug_info_print(dhd); } /** * Waits for IOCTL completion message from the dongle, copies this into caller * provided parameter 'buf'. */ static int dhd_msgbuf_wait_ioctl_cmplt(dhd_pub_t *dhd, uint32 len, void *buf) { dhd_prot_t *prot = dhd->prot; int timeleft; unsigned long flags; int ret = 0; static uint cnt = 0; DHD_TRACE(("%s: Enter\n", __FUNCTION__)); if (dhd_query_bus_erros(dhd)) { ret = -EIO; goto out; } timeleft = dhd_os_ioctl_resp_wait(dhd, (uint *)&prot->ioctl_received); #ifdef DHD_RECOVER_TIMEOUT if (prot->ioctl_received == 0) { uint32 intstatus = si_corereg(dhd->bus->sih, dhd->bus->sih->buscoreidx, dhd->bus->pcie_mailbox_int, 0, 0); int host_irq_disbled = dhdpcie_irq_disabled(dhd->bus); if ((intstatus) && (intstatus != (uint32)-1) && (timeleft == 0) && (!dhd_query_bus_erros(dhd))) { DHD_ERROR(("%s: iovar timeout trying again intstatus=%x" " host_irq_disabled=%d\n", __FUNCTION__, intstatus, host_irq_disbled)); dhd_pcie_intr_count_dump(dhd); dhd_print_tasklet_status(dhd); dhd_prot_process_ctrlbuf(dhd); timeleft = dhd_os_ioctl_resp_wait(dhd, (uint *)&prot->ioctl_received); /* Clear Interrupts */ dhdpcie_bus_clear_intstatus(dhd->bus); } } #endif /* DHD_RECOVER_TIMEOUT */ if (dhd->conf->ctrl_resched > 0 && timeleft == 0 && (!dhd_query_bus_erros(dhd))) { cnt++; if (cnt <= dhd->conf->ctrl_resched) { uint buscorerev = dhd->bus->sih->buscorerev; uint32 intstatus = 0, intmask = 0; intstatus = si_corereg(dhd->bus->sih, dhd->bus->sih->buscoreidx, PCIMailBoxInt(buscorerev), 0, 0); intmask = si_corereg(dhd->bus->sih, dhd->bus->sih->buscoreidx, PCIMailBoxMask(buscorerev), 0, 0); if (intstatus) { DHD_ERROR(("%s: reschedule dhd_dpc, cnt=%d, intstatus=0x%x, intmask=0x%x\n", __FUNCTION__, cnt, intstatus, intmask)); dhd->bus->intstatus = intstatus; dhd->bus->ipend = TRUE; dhd->bus->dpc_sched = TRUE; dhd_sched_dpc(dhd); timeleft = dhd_os_ioctl_resp_wait(dhd, &prot->ioctl_received); } } } else { cnt = 0; } if (timeleft == 0 && (!dhd_query_bus_erros(dhd))) { /* check if resumed on time out related to scheduling issue */ dhd->is_sched_error = FALSE; if (dhd->bus->isr_entry_time > prot->ioctl_fillup_time) { dhd->is_sched_error = dhd_bus_query_dpc_sched_errors(dhd); } dhd_msgbuf_iovar_timeout_dump(dhd); #ifdef DHD_FW_COREDUMP /* Collect socram dump */ if (dhd->memdump_enabled) { /* collect core dump */ dhd->memdump_type = DUMP_TYPE_RESUMED_ON_TIMEOUT; dhd_bus_mem_dump(dhd); } #endif /* DHD_FW_COREDUMP */ ret = -ETIMEDOUT; goto out; } else { if (prot->ioctl_received != IOCTL_RETURN_ON_SUCCESS) { DHD_ERROR(("%s: IOCTL failure due to ioctl_received = %d\n", __FUNCTION__, prot->ioctl_received)); ret = -EINVAL; goto out; } dhd->rxcnt_timeout = 0; dhd->rx_ctlpkts++; DHD_CTL(("%s: ioctl resp resumed, got %d\n", __FUNCTION__, prot->ioctl_resplen)); } if (dhd->prot->ioctl_resplen > len) dhd->prot->ioctl_resplen = (uint16)len; if (buf) bcopy(dhd->prot->retbuf.va, buf, dhd->prot->ioctl_resplen); ret = (int)(dhd->prot->ioctl_status); out: DHD_GENERAL_LOCK(dhd, flags); dhd->prot->ioctl_state = 0; dhd->prot->ioctl_resplen = 0; dhd->prot->ioctl_received = IOCTL_WAIT; dhd->prot->curr_ioctl_cmd = 0; DHD_GENERAL_UNLOCK(dhd, flags); return ret; } /* dhd_msgbuf_wait_ioctl_cmplt */ static int dhd_msgbuf_set_ioctl(dhd_pub_t *dhd, int ifidx, uint cmd, void *buf, uint len, uint8 action) { int ret = 0; DHD_TRACE(("%s: Enter \n", __FUNCTION__)); if (dhd->bus->is_linkdown) { DHD_ERROR(("%s : PCIe link is down. we have nothing to do\n", __FUNCTION__)); return -EIO; } if (dhd->busstate == DHD_BUS_DOWN) { DHD_ERROR(("%s : bus is down. we have nothing to do\n", __FUNCTION__)); return -EIO; } /* don't talk to the dongle if fw is about to be reloaded */ if (dhd->hang_was_sent) { DHD_ERROR(("%s: HANG was sent up earlier. Not talking to the chip\n", __FUNCTION__)); return -EIO; } DHD_CTL(("ACTION %d ifdix %d cmd %d len %d \n", action, ifidx, cmd, len)); /* Fill up msgbuf for ioctl req */ ret = dhd_fillup_ioct_reqst(dhd, (uint16)len, cmd, buf, ifidx); if (ret < 0) { DHD_ERROR(("%s(): dhd_fillup_ioct_reqst failed \r\n", __FUNCTION__)); goto done; } ret = dhd_msgbuf_wait_ioctl_cmplt(dhd, len, buf); done: return ret; } /** Called by upper DHD layer. Handles a protocol control response asynchronously. */ int dhd_prot_ctl_complete(dhd_pub_t *dhd) { return 0; } /** Called by upper DHD layer. Check for and handle local prot-specific iovar commands */ int dhd_prot_iovar_op(dhd_pub_t *dhd, const char *name, void *params, int plen, void *arg, int len, bool set) { return BCME_UNSUPPORTED; } #ifdef DHD_DUMP_PCIE_RINGS int dhd_d2h_h2d_ring_dump(dhd_pub_t *dhd, void *file, const void *user_buf, unsigned long *file_posn, bool file_write) { dhd_prot_t *prot; msgbuf_ring_t *ring; int ret = 0; uint16 h2d_flowrings_total; uint16 flowid; if (!(dhd) || !(dhd->prot)) { goto exit; } prot = dhd->prot; /* Below is the same ring dump sequence followed in parser as well. */ ring = &prot->h2dring_ctrl_subn; if ((ret = dhd_ring_write(dhd, ring, file, user_buf, file_posn)) < 0) goto exit; ring = &prot->h2dring_rxp_subn; if ((ret = dhd_ring_write(dhd, ring, file, user_buf, file_posn)) < 0) goto exit; ring = &prot->d2hring_ctrl_cpln; if ((ret = dhd_ring_write(dhd, ring, file, user_buf, file_posn)) < 0) goto exit; ring = &prot->d2hring_tx_cpln; if ((ret = dhd_ring_write(dhd, ring, file, user_buf, file_posn)) < 0) goto exit; ring = &prot->d2hring_rx_cpln; if ((ret = dhd_ring_write(dhd, ring, file, user_buf, file_posn)) < 0) goto exit; h2d_flowrings_total = dhd_get_max_flow_rings(dhd); FOREACH_RING_IN_FLOWRINGS_POOL(prot, ring, flowid, h2d_flowrings_total) { if ((ret = dhd_ring_write(dhd, ring, file, user_buf, file_posn)) < 0) { goto exit; } } #ifdef EWP_EDL if (dhd->dongle_edl_support) { ring = prot->d2hring_edl; if ((ret = dhd_edl_ring_hdr_write(dhd, ring, file, user_buf, file_posn)) < 0) goto exit; } else if (dhd->bus->api.fw_rev >= PCIE_SHARED_VERSION_6 && !dhd->dongle_edl_support) #else if (dhd->bus->api.fw_rev >= PCIE_SHARED_VERSION_6) #endif /* EWP_EDL */ { ring = prot->h2dring_info_subn; if ((ret = dhd_ring_write(dhd, ring, file, user_buf, file_posn)) < 0) goto exit; ring = prot->d2hring_info_cpln; if ((ret = dhd_ring_write(dhd, ring, file, user_buf, file_posn)) < 0) goto exit; } exit : return ret; } /* Write to file */ static int dhd_ring_write(dhd_pub_t *dhd, msgbuf_ring_t *ring, void *file, const void *user_buf, unsigned long *file_posn) { int ret = 0; if (ring == NULL) { DHD_ERROR(("%s: Ring not initialised, failed to dump ring contents\n", __FUNCTION__)); return BCME_ERROR; } if (file) { ret = dhd_os_write_file_posn(file, file_posn, (char *)(ring->dma_buf.va), ((unsigned long)(ring->max_items) * (ring->item_len))); if (ret < 0) { DHD_ERROR(("%s: write file error !\n", __FUNCTION__)); ret = BCME_ERROR; } } else if (user_buf) { ret = dhd_export_debug_data((char *)(ring->dma_buf.va), NULL, user_buf, ((unsigned long)(ring->max_items) * (ring->item_len)), (int *)file_posn); } return ret; } #endif /* DHD_DUMP_PCIE_RINGS */ #ifdef EWP_EDL /* Write to file */ static int dhd_edl_ring_hdr_write(dhd_pub_t *dhd, msgbuf_ring_t *ring, void *file, const void *user_buf, unsigned long *file_posn) { int ret = 0, nitems = 0; char *buf = NULL, *ptr = NULL; uint8 *msg_addr = NULL; uint16 rd = 0; if (ring == NULL) { DHD_ERROR(("%s: Ring not initialised, failed to dump ring contents\n", __FUNCTION__)); ret = BCME_ERROR; goto done; } buf = MALLOCZ(dhd->osh, (D2HRING_EDL_MAX_ITEM * D2HRING_EDL_HDR_SIZE)); if (buf == NULL) { DHD_ERROR(("%s: buffer allocation failed\n", __FUNCTION__)); ret = BCME_ERROR; goto done; } ptr = buf; for (; nitems < D2HRING_EDL_MAX_ITEM; nitems++, rd++) { msg_addr = (uint8 *)ring->dma_buf.va + (rd * ring->item_len); memcpy(ptr, (char *)msg_addr, D2HRING_EDL_HDR_SIZE); ptr += D2HRING_EDL_HDR_SIZE; } if (file) { ret = dhd_os_write_file_posn(file, file_posn, buf, (D2HRING_EDL_HDR_SIZE * D2HRING_EDL_MAX_ITEM)); if (ret < 0) { DHD_ERROR(("%s: write file error !\n", __FUNCTION__)); goto done; } } else { ret = dhd_export_debug_data(buf, NULL, user_buf, (D2HRING_EDL_HDR_SIZE * D2HRING_EDL_MAX_ITEM), file_posn); } done: if (buf) { MFREE(dhd->osh, buf, (D2HRING_EDL_MAX_ITEM * D2HRING_EDL_HDR_SIZE)); } return ret; } #endif /* EWP_EDL */ /** Add prot dump output to a buffer */ void dhd_prot_dump(dhd_pub_t *dhd, struct bcmstrbuf *b) { if (dhd->d2h_sync_mode & PCIE_SHARED_D2H_SYNC_SEQNUM) bcm_bprintf(b, "\nd2h_sync: SEQNUM:"); else if (dhd->d2h_sync_mode & PCIE_SHARED_D2H_SYNC_XORCSUM) bcm_bprintf(b, "\nd2h_sync: XORCSUM:"); else bcm_bprintf(b, "\nd2h_sync: NONE:"); bcm_bprintf(b, " d2h_sync_wait max<%lu> tot<%lu>\n", dhd->prot->d2h_sync_wait_max, dhd->prot->d2h_sync_wait_tot); bcm_bprintf(b, "\nDongle DMA Indices: h2d %d d2h %d index size %d bytes\n", dhd->dma_h2d_ring_upd_support, dhd->dma_d2h_ring_upd_support, dhd->prot->rw_index_sz); bcm_bprintf(b, "h2d_max_txpost: %d, prot->h2d_max_txpost: %d\n", h2d_max_txpost, dhd->prot->h2d_max_txpost); bcm_bprintf(b, "pktid_txq_start_cnt: %d\n", dhd->prot->pktid_txq_start_cnt); bcm_bprintf(b, "pktid_txq_stop_cnt: %d\n", dhd->prot->pktid_txq_stop_cnt); bcm_bprintf(b, "pktid_depleted_cnt: %d\n", dhd->prot->pktid_depleted_cnt); } /* Update local copy of dongle statistics */ void dhd_prot_dstats(dhd_pub_t *dhd) { return; } /** Called by upper DHD layer */ int dhd_process_pkt_reorder_info(dhd_pub_t *dhd, uchar *reorder_info_buf, uint reorder_info_len, void **pkt, uint32 *free_buf_count) { return 0; } /** Debug related, post a dummy message to interrupt dongle. Used to process cons commands. */ int dhd_post_dummy_msg(dhd_pub_t *dhd) { unsigned long flags; hostevent_hdr_t *hevent = NULL; uint16 alloced = 0; dhd_prot_t *prot = dhd->prot; msgbuf_ring_t *ring = &prot->h2dring_ctrl_subn; DHD_RING_LOCK(ring->ring_lock, flags); hevent = (hostevent_hdr_t *) dhd_prot_alloc_ring_space(dhd, ring, 1, &alloced, FALSE); if (hevent == NULL) { DHD_RING_UNLOCK(ring->ring_lock, flags); return -1; } /* CMN msg header */ hevent->msg.epoch = ring->seqnum % H2D_EPOCH_MODULO; ring->seqnum++; hevent->msg.msg_type = MSG_TYPE_HOST_EVNT; hevent->msg.if_id = 0; hevent->msg.flags = ring->current_phase; /* Event payload */ hevent->evnt_pyld = htol32(HOST_EVENT_CONS_CMD); /* Since, we are filling the data directly into the bufptr obtained * from the msgbuf, we can directly call the write_complete */ dhd_prot_ring_write_complete(dhd, ring, hevent, 1); DHD_RING_UNLOCK(ring->ring_lock, flags); return 0; } /** * If exactly_nitems is true, this function will allocate space for nitems or fail * If exactly_nitems is false, this function will allocate space for nitems or less */ static void * BCMFASTPATH dhd_prot_alloc_ring_space(dhd_pub_t *dhd, msgbuf_ring_t *ring, uint16 nitems, uint16 * alloced, bool exactly_nitems) { void * ret_buf; /* Alloc space for nitems in the ring */ ret_buf = dhd_prot_get_ring_space(ring, nitems, alloced, exactly_nitems); if (ret_buf == NULL) { /* HWA TODO, need to get RD pointer from different array * which HWA will directly write into host memory */ /* if alloc failed , invalidate cached read ptr */ if (dhd->dma_d2h_ring_upd_support) { ring->rd = dhd_prot_dma_indx_get(dhd, H2D_DMA_INDX_RD_UPD, ring->idx); } else { dhd_bus_cmn_readshared(dhd->bus, &(ring->rd), RING_RD_UPD, ring->idx); } /* Try allocating once more */ ret_buf = dhd_prot_get_ring_space(ring, nitems, alloced, exactly_nitems); if (ret_buf == NULL) { DHD_INFO(("%s: Ring space not available \n", ring->name)); return NULL; } } if (ret_buf == HOST_RING_BASE(ring)) { DHD_INFO(("%s: setting the phase now\n", ring->name)); ring->current_phase = ring->current_phase ? 0 : BCMPCIE_CMNHDR_PHASE_BIT_INIT; } /* Return alloced space */ return ret_buf; } /** * Non inline ioct request. * Form a ioctl request first as per ioctptr_reqst_hdr_t header in the circular buffer * Form a separate request buffer where a 4 byte cmn header is added in the front * buf contents from parent function is copied to remaining section of this buffer */ static int dhd_fillup_ioct_reqst(dhd_pub_t *dhd, uint16 len, uint cmd, void* buf, int ifidx) { dhd_prot_t *prot = dhd->prot; ioctl_req_msg_t *ioct_rqst; void * ioct_buf; /* For ioctl payload */ uint16 rqstlen, resplen; unsigned long flags; uint16 alloced = 0; msgbuf_ring_t *ring = &prot->h2dring_ctrl_subn; if (dhd_query_bus_erros(dhd)) { return -EIO; } rqstlen = len; resplen = len; /* Limit ioct request to MSGBUF_MAX_MSG_SIZE bytes including hdrs */ /* 8K allocation of dongle buffer fails */ /* dhd doesnt give separate input & output buf lens */ /* so making the assumption that input length can never be more than 2k */ rqstlen = MIN(rqstlen, MSGBUF_IOCTL_MAX_RQSTLEN); DHD_RING_LOCK(ring->ring_lock, flags); if (prot->ioctl_state) { DHD_ERROR(("%s: pending ioctl %02x\n", __FUNCTION__, prot->ioctl_state)); DHD_RING_UNLOCK(ring->ring_lock, flags); return BCME_BUSY; } else { prot->ioctl_state = MSGBUF_IOCTL_ACK_PENDING | MSGBUF_IOCTL_RESP_PENDING; } /* Request for cbuf space */ ioct_rqst = (ioctl_req_msg_t*) dhd_prot_alloc_ring_space(dhd, ring, 1, &alloced, FALSE); if (ioct_rqst == NULL) { DHD_ERROR(("couldn't allocate space on msgring to send ioctl request\n")); prot->ioctl_state = 0; prot->curr_ioctl_cmd = 0; prot->ioctl_received = IOCTL_WAIT; DHD_RING_UNLOCK(ring->ring_lock, flags); return -1; } /* Common msg buf hdr */ ioct_rqst->cmn_hdr.msg_type = MSG_TYPE_IOCTLPTR_REQ; ioct_rqst->cmn_hdr.if_id = (uint8)ifidx; ioct_rqst->cmn_hdr.flags = ring->current_phase; ioct_rqst->cmn_hdr.request_id = htol32(DHD_IOCTL_REQ_PKTID); ioct_rqst->cmn_hdr.epoch = ring->seqnum % H2D_EPOCH_MODULO; ring->seqnum++; ioct_rqst->cmd = htol32(cmd); prot->curr_ioctl_cmd = cmd; ioct_rqst->output_buf_len = htol16(resplen); prot->ioctl_trans_id++; ioct_rqst->trans_id = prot->ioctl_trans_id; /* populate ioctl buffer info */ ioct_rqst->input_buf_len = htol16(rqstlen); ioct_rqst->host_input_buf_addr.high = htol32(PHYSADDRHI(prot->ioctbuf.pa)); ioct_rqst->host_input_buf_addr.low = htol32(PHYSADDRLO(prot->ioctbuf.pa)); /* copy ioct payload */ ioct_buf = (void *) prot->ioctbuf.va; prot->ioctl_fillup_time = OSL_LOCALTIME_NS(); if (buf) memcpy(ioct_buf, buf, len); OSL_CACHE_FLUSH((void *) prot->ioctbuf.va, len); if (!ISALIGNED(ioct_buf, DMA_ALIGN_LEN)) DHD_ERROR(("host ioct address unaligned !!!!! \n")); DHD_CTL(("submitted IOCTL request request_id %d, cmd %d, output_buf_len %d, tx_id %d\n", ioct_rqst->cmn_hdr.request_id, cmd, ioct_rqst->output_buf_len, ioct_rqst->trans_id)); /* update ring's WR index and ring doorbell to dongle */ dhd_prot_ring_write_complete(dhd, ring, ioct_rqst, 1); DHD_RING_UNLOCK(ring->ring_lock, flags); return 0; } /* dhd_fillup_ioct_reqst */ /** * dhd_prot_ring_attach - Initialize the msgbuf_ring object and attach a * DMA-able buffer to it. The ring is NOT tagged as inited until all the ring * information is posted to the dongle. * * Invoked in dhd_prot_attach for the common rings, and in dhd_prot_init for * each flowring in pool of flowrings. * * returns BCME_OK=0 on success * returns non-zero negative error value on failure. */ static int dhd_prot_ring_attach(dhd_pub_t *dhd, msgbuf_ring_t *ring, const char *name, uint16 max_items, uint16 item_len, uint16 ringid) { int dma_buf_alloced = BCME_NOMEM; uint32 dma_buf_len = max_items * item_len; dhd_prot_t *prot = dhd->prot; uint16 max_flowrings = dhd->bus->max_tx_flowrings; dhd_dma_buf_t *dma_buf = NULL; ASSERT(ring); ASSERT(name); ASSERT((max_items < 0xFFFF) && (item_len < 0xFFFF) && (ringid < 0xFFFF)); /* Init name */ strncpy(ring->name, name, RING_NAME_MAX_LENGTH); ring->name[RING_NAME_MAX_LENGTH - 1] = '\0'; ring->idx = ringid; ring->max_items = max_items; ring->item_len = item_len; /* A contiguous space may be reserved for all flowrings */ if (DHD_IS_FLOWRING(ringid, max_flowrings) && (prot->flowrings_dma_buf.va)) { /* Carve out from the contiguous DMA-able flowring buffer */ uint16 flowid; uint32 base_offset; dhd_dma_buf_t *rsv_buf = &prot->flowrings_dma_buf; dma_buf = &ring->dma_buf; flowid = DHD_RINGID_TO_FLOWID(ringid); base_offset = (flowid - BCMPCIE_H2D_COMMON_MSGRINGS) * dma_buf_len; ASSERT(base_offset + dma_buf_len <= rsv_buf->len); dma_buf->len = dma_buf_len; dma_buf->va = (void *)((uintptr)rsv_buf->va + base_offset); PHYSADDRHISET(dma_buf->pa, PHYSADDRHI(rsv_buf->pa)); PHYSADDRLOSET(dma_buf->pa, PHYSADDRLO(rsv_buf->pa) + base_offset); /* On 64bit, contiguous space may not span across 0x00000000FFFFFFFF */ ASSERT(PHYSADDRLO(dma_buf->pa) >= PHYSADDRLO(rsv_buf->pa)); dma_buf->dmah = rsv_buf->dmah; dma_buf->secdma = rsv_buf->secdma; (void)dhd_dma_buf_audit(dhd, &ring->dma_buf); } else { #ifdef EWP_EDL if (ring == dhd->prot->d2hring_edl) { /* For EDL ring, memory is alloced during attach, * so just need to copy the dma_buf to the ring's dma_buf */ memcpy(&ring->dma_buf, &dhd->edl_ring_mem, sizeof(ring->dma_buf)); dma_buf = &ring->dma_buf; if (dma_buf->va == NULL) { return BCME_NOMEM; } } else #endif /* EWP_EDL */ { /* Allocate a dhd_dma_buf */ dma_buf_alloced = dhd_dma_buf_alloc(dhd, &ring->dma_buf, dma_buf_len); if (dma_buf_alloced != BCME_OK) { return BCME_NOMEM; } } } /* CAUTION: Save ring::base_addr in little endian format! */ dhd_base_addr_htolpa(&ring->base_addr, ring->dma_buf.pa); #ifdef BCM_SECURE_DMA if (SECURE_DMA_ENAB(prot->osh)) { ring->dma_buf.secdma = MALLOCZ(prot->osh, sizeof(sec_cma_info_t)); if (ring->dma_buf.secdma == NULL) { goto free_dma_buf; } } #endif /* BCM_SECURE_DMA */ ring->ring_lock = dhd_os_spin_lock_init(dhd->osh); DHD_INFO(("RING_ATTACH : %s Max item %d len item %d total size %d " "ring start %p buf phys addr %x:%x \n", ring->name, ring->max_items, ring->item_len, dma_buf_len, ring->dma_buf.va, ltoh32(ring->base_addr.high_addr), ltoh32(ring->base_addr.low_addr))); return BCME_OK; #ifdef BCM_SECURE_DMA free_dma_buf: if (dma_buf_alloced == BCME_OK) { dhd_dma_buf_free(dhd, &ring->dma_buf); } #endif /* BCM_SECURE_DMA */ return BCME_NOMEM; } /* dhd_prot_ring_attach */ /** * dhd_prot_ring_init - Post the common ring information to dongle. * * Used only for common rings. * * The flowrings information is passed via the create flowring control message * (tx_flowring_create_request_t) sent over the H2D control submission common * ring. */ static void dhd_prot_ring_init(dhd_pub_t *dhd, msgbuf_ring_t *ring) { ring->wr = 0; ring->rd = 0; ring->curr_rd = 0; /* Reset hwa_db_type for all rings, * for data path rings, it will be assigned separately post init * from dhd_prot_d2h_sync_init and dhd_prot_h2d_sync_init */ ring->hwa_db_type = 0; /* CAUTION: ring::base_addr already in Little Endian */ dhd_bus_cmn_writeshared(dhd->bus, &ring->base_addr, sizeof(sh_addr_t), RING_BUF_ADDR, ring->idx); dhd_bus_cmn_writeshared(dhd->bus, &ring->max_items, sizeof(uint16), RING_MAX_ITEMS, ring->idx); dhd_bus_cmn_writeshared(dhd->bus, &ring->item_len, sizeof(uint16), RING_ITEM_LEN, ring->idx); dhd_bus_cmn_writeshared(dhd->bus, &(ring->wr), sizeof(uint16), RING_WR_UPD, ring->idx); dhd_bus_cmn_writeshared(dhd->bus, &(ring->rd), sizeof(uint16), RING_RD_UPD, ring->idx); /* ring inited */ ring->inited = TRUE; } /* dhd_prot_ring_init */ /** * dhd_prot_ring_reset - bzero a ring's DMA-ble buffer and cache flush * Reset WR and RD indices to 0. */ static void dhd_prot_ring_reset(dhd_pub_t *dhd, msgbuf_ring_t *ring) { DHD_TRACE(("%s\n", __FUNCTION__)); dhd_dma_buf_reset(dhd, &ring->dma_buf); ring->rd = ring->wr = 0; ring->curr_rd = 0; ring->inited = FALSE; ring->create_pending = FALSE; } /** * dhd_prot_ring_detach - Detach the DMA-able buffer and any other objects * hanging off the msgbuf_ring. */ static void dhd_prot_ring_detach(dhd_pub_t *dhd, msgbuf_ring_t *ring) { dhd_prot_t *prot = dhd->prot; uint16 max_flowrings = dhd->bus->max_tx_flowrings; ASSERT(ring); ring->inited = FALSE; /* rd = ~0, wr = ring->rd - 1, max_items = 0, len_item = ~0 */ #ifdef BCM_SECURE_DMA if (SECURE_DMA_ENAB(prot->osh)) { if (ring->dma_buf.secdma) { SECURE_DMA_UNMAP_ALL(prot->osh, ring->dma_buf.secdma); MFREE(prot->osh, ring->dma_buf.secdma, sizeof(sec_cma_info_t)); ring->dma_buf.secdma = NULL; } } #endif /* BCM_SECURE_DMA */ /* If the DMA-able buffer was carved out of a pre-reserved contiguous * memory, then simply stop using it. */ if (DHD_IS_FLOWRING(ring->idx, max_flowrings) && (prot->flowrings_dma_buf.va)) { (void)dhd_dma_buf_audit(dhd, &ring->dma_buf); memset(&ring->dma_buf, 0, sizeof(dhd_dma_buf_t)); } else { dhd_dma_buf_free(dhd, &ring->dma_buf); } dhd_os_spin_lock_deinit(dhd->osh, ring->ring_lock); } /* dhd_prot_ring_detach */ /* Fetch number of H2D flowrings given the total number of h2d rings */ uint16 dhd_get_max_flow_rings(dhd_pub_t *dhd) { if (dhd->bus->api.fw_rev >= PCIE_SHARED_VERSION_6) return dhd->bus->max_tx_flowrings; else return (dhd->bus->max_tx_flowrings - BCMPCIE_H2D_COMMON_MSGRINGS); } /** * dhd_prot_flowrings_pool_attach - Initialize a pool of flowring msgbuf_ring_t. * * Allocate a pool of msgbuf_ring along with DMA-able buffers for flowrings. * Dongle includes common rings when it advertizes the number of H2D rings. * Allocates a pool of msgbuf_ring_t and invokes dhd_prot_ring_attach to * allocate the DMA-able buffer and initialize each msgbuf_ring_t object. * * dhd_prot_ring_attach is invoked to perform the actual initialization and * attaching the DMA-able buffer. * * Later dhd_prot_flowrings_pool_fetch() may be used to fetch a preallocated and * initialized msgbuf_ring_t object. * * returns BCME_OK=0 on success * returns non-zero negative error value on failure. */ static int dhd_prot_flowrings_pool_attach(dhd_pub_t *dhd) { uint16 flowid; msgbuf_ring_t *ring; uint16 h2d_flowrings_total; /* exclude H2D common rings */ dhd_prot_t *prot = dhd->prot; char ring_name[RING_NAME_MAX_LENGTH]; if (prot->h2d_flowrings_pool != NULL) return BCME_OK; /* dhd_prot_init rentry after a dhd_prot_reset */ ASSERT(prot->h2d_rings_total == 0); /* h2d_rings_total includes H2D common rings: ctrl and rxbuf subn */ prot->h2d_rings_total = (uint16)dhd_bus_max_h2d_queues(dhd->bus); if (prot->h2d_rings_total < BCMPCIE_H2D_COMMON_MSGRINGS) { DHD_ERROR(("%s: h2d_rings_total advertized as %u\n", __FUNCTION__, prot->h2d_rings_total)); return BCME_ERROR; } /* Subtract number of H2D common rings, to determine number of flowrings */ h2d_flowrings_total = dhd_get_max_flow_rings(dhd); DHD_ERROR(("Attach flowrings pool for %d rings\n", h2d_flowrings_total)); /* Allocate pool of msgbuf_ring_t objects for all flowrings */ prot->h2d_flowrings_pool = (msgbuf_ring_t *)MALLOCZ(prot->osh, (h2d_flowrings_total * sizeof(msgbuf_ring_t))); if (prot->h2d_flowrings_pool == NULL) { DHD_ERROR(("%s: flowrings pool for %d flowrings, alloc failure\n", __FUNCTION__, h2d_flowrings_total)); goto fail; } /* Setup & Attach a DMA-able buffer to each flowring in the flowring pool */ FOREACH_RING_IN_FLOWRINGS_POOL(prot, ring, flowid, h2d_flowrings_total) { snprintf(ring_name, sizeof(ring_name), "h2dflr_%03u", flowid); if (dhd_prot_ring_attach(dhd, ring, ring_name, prot->h2d_max_txpost, H2DRING_TXPOST_ITEMSIZE, DHD_FLOWID_TO_RINGID(flowid)) != BCME_OK) { goto attach_fail; } /* * TOD0 - Currently flowrings hwa is disabled and can be enabled like below * (dhd->bus->hwa_enab_bmap & HWA_ENAB_BITMAP_TXPOSTS) ? HWA_DB_TYPE_TXPOSTS : 0; */ ring->hwa_db_type = 0; } return BCME_OK; attach_fail: dhd_prot_flowrings_pool_detach(dhd); /* Free entire pool of flowrings */ fail: prot->h2d_rings_total = 0; return BCME_NOMEM; } /* dhd_prot_flowrings_pool_attach */ /** * dhd_prot_flowrings_pool_reset - Reset all msgbuf_ring_t objects in the pool. * Invokes dhd_prot_ring_reset to perform the actual reset. * * The DMA-able buffer is not freed during reset and neither is the flowring * pool freed. * * dhd_prot_flowrings_pool_reset will be invoked in dhd_prot_reset. Following * the dhd_prot_reset, dhd_prot_init will be re-invoked, and the flowring pool * from a previous flowring pool instantiation will be reused. * * This will avoid a fragmented DMA-able memory condition, if multiple * dhd_prot_reset were invoked to reboot the dongle without a full detach/attach * cycle. */ static void dhd_prot_flowrings_pool_reset(dhd_pub_t *dhd) { uint16 flowid, h2d_flowrings_total; msgbuf_ring_t *ring; dhd_prot_t *prot = dhd->prot; if (prot->h2d_flowrings_pool == NULL) { ASSERT(prot->h2d_rings_total == 0); return; } h2d_flowrings_total = dhd_get_max_flow_rings(dhd); /* Reset each flowring in the flowring pool */ FOREACH_RING_IN_FLOWRINGS_POOL(prot, ring, flowid, h2d_flowrings_total) { dhd_prot_ring_reset(dhd, ring); ring->inited = FALSE; } /* Flowring pool state must be as-if dhd_prot_flowrings_pool_attach */ } /** * dhd_prot_flowrings_pool_detach - Free pool of msgbuf_ring along with * DMA-able buffers for flowrings. * dhd_prot_ring_detach is invoked to free the DMA-able buffer and perform any * de-initialization of each msgbuf_ring_t. */ static void dhd_prot_flowrings_pool_detach(dhd_pub_t *dhd) { int flowid; msgbuf_ring_t *ring; uint16 h2d_flowrings_total; /* exclude H2D common rings */ dhd_prot_t *prot = dhd->prot; if (prot->h2d_flowrings_pool == NULL) { ASSERT(prot->h2d_rings_total == 0); return; } h2d_flowrings_total = dhd_get_max_flow_rings(dhd); /* Detach the DMA-able buffer for each flowring in the flowring pool */ FOREACH_RING_IN_FLOWRINGS_POOL(prot, ring, flowid, h2d_flowrings_total) { dhd_prot_ring_detach(dhd, ring); } MFREE(prot->osh, prot->h2d_flowrings_pool, (h2d_flowrings_total * sizeof(msgbuf_ring_t))); prot->h2d_flowrings_pool = (msgbuf_ring_t*)NULL; prot->h2d_rings_total = 0; } /* dhd_prot_flowrings_pool_detach */ /** * dhd_prot_flowrings_pool_fetch - Fetch a preallocated and initialized * msgbuf_ring from the flowring pool, and assign it. * * Unlike common rings, which uses a dhd_prot_ring_init() to pass the common * ring information to the dongle, a flowring's information is passed via a * flowring create control message. * * Only the ring state (WR, RD) index are initialized. */ static msgbuf_ring_t * dhd_prot_flowrings_pool_fetch(dhd_pub_t *dhd, uint16 flowid) { msgbuf_ring_t *ring; dhd_prot_t *prot = dhd->prot; ASSERT(flowid >= DHD_FLOWRING_START_FLOWID); ASSERT(flowid < prot->h2d_rings_total); ASSERT(prot->h2d_flowrings_pool != NULL); ring = DHD_RING_IN_FLOWRINGS_POOL(prot, flowid); /* ASSERT flow_ring->inited == FALSE */ ring->wr = 0; ring->rd = 0; ring->curr_rd = 0; ring->inited = TRUE; /** * Every time a flowring starts dynamically, initialize current_phase with 0 * then flip to BCMPCIE_CMNHDR_PHASE_BIT_INIT */ ring->current_phase = 0; return ring; } /** * dhd_prot_flowrings_pool_release - release a previously fetched flowring's * msgbuf_ring back to the flow_ring pool. */ void dhd_prot_flowrings_pool_release(dhd_pub_t *dhd, uint16 flowid, void *flow_ring) { msgbuf_ring_t *ring; dhd_prot_t *prot = dhd->prot; ASSERT(flowid >= DHD_FLOWRING_START_FLOWID); ASSERT(flowid < prot->h2d_rings_total); ASSERT(prot->h2d_flowrings_pool != NULL); ring = DHD_RING_IN_FLOWRINGS_POOL(prot, flowid); ASSERT(ring == (msgbuf_ring_t*)flow_ring); /* ASSERT flow_ring->inited == TRUE */ (void)dhd_dma_buf_audit(dhd, &ring->dma_buf); ring->wr = 0; ring->rd = 0; ring->inited = FALSE; ring->curr_rd = 0; } /* Assumes only one index is updated at a time */ /* If exactly_nitems is true, this function will allocate space for nitems or fail */ /* Exception: when wrap around is encountered, to prevent hangup (last nitems of ring buffer) */ /* If exactly_nitems is false, this function will allocate space for nitems or less */ static void *BCMFASTPATH dhd_prot_get_ring_space(msgbuf_ring_t *ring, uint16 nitems, uint16 * alloced, bool exactly_nitems) { void *ret_ptr = NULL; uint16 ring_avail_cnt; ASSERT(nitems <= ring->max_items); ring_avail_cnt = CHECK_WRITE_SPACE(ring->rd, ring->wr, ring->max_items); if ((ring_avail_cnt == 0) || (exactly_nitems && (ring_avail_cnt < nitems) && ((ring->max_items - ring->wr) >= nitems))) { DHD_INFO(("Space not available: ring %s items %d write %d read %d\n", ring->name, nitems, ring->wr, ring->rd)); return NULL; } *alloced = MIN(nitems, ring_avail_cnt); /* Return next available space */ ret_ptr = (char *)DHD_RING_BGN_VA(ring) + (ring->wr * ring->item_len); /* Update write index */ if ((ring->wr + *alloced) == ring->max_items) ring->wr = 0; else if ((ring->wr + *alloced) < ring->max_items) ring->wr += *alloced; else { /* Should never hit this */ ASSERT(0); return NULL; } return ret_ptr; } /* dhd_prot_get_ring_space */ /** * dhd_prot_ring_write_complete - Host updates the new WR index on producing * new messages in a H2D ring. The messages are flushed from cache prior to * posting the new WR index. The new WR index will be updated in the DMA index * array or directly in the dongle's ring state memory. * A PCIE doorbell will be generated to wake up the dongle. * This is a non-atomic function, make sure the callers * always hold appropriate locks. */ static void BCMFASTPATH __dhd_prot_ring_write_complete(dhd_pub_t *dhd, msgbuf_ring_t * ring, void* p, uint16 nitems) { dhd_prot_t *prot = dhd->prot; uint32 db_index; uint16 max_flowrings = dhd->bus->max_tx_flowrings; uint corerev; /* cache flush */ OSL_CACHE_FLUSH(p, ring->item_len * nitems); /* For HWA, update db_index and ring mb2 DB and return */ if (HWA_ACTIVE(dhd) && ring->hwa_db_type) { db_index = HWA_DB_INDEX_VALUE(ring->wr) | ring->hwa_db_type; DHD_TRACE(("%s: ring(%s) wr(%d) hwa_db_type(0x%x) db_index(0x%x)\n", __FUNCTION__, ring->name, ring->wr, ring->hwa_db_type, db_index)); prot->mb_2_ring_fn(dhd->bus, db_index, TRUE); return; } if (IDMA_ACTIVE(dhd) || dhd->dma_h2d_ring_upd_support) { dhd_prot_dma_indx_set(dhd, ring->wr, H2D_DMA_INDX_WR_UPD, ring->idx); } else if (IFRM_ACTIVE(dhd) && DHD_IS_FLOWRING(ring->idx, max_flowrings)) { dhd_prot_dma_indx_set(dhd, ring->wr, H2D_IFRM_INDX_WR_UPD, ring->idx); } else { dhd_bus_cmn_writeshared(dhd->bus, &(ring->wr), sizeof(uint16), RING_WR_UPD, ring->idx); } /* raise h2d interrupt */ if (IDMA_ACTIVE(dhd) || (IFRM_ACTIVE(dhd) && DHD_IS_FLOWRING(ring->idx, max_flowrings))) { db_index = IDMA_IDX0; /* this api is called in wl down path..in that case sih is freed already */ if (dhd->bus->sih) { corerev = dhd->bus->sih->buscorerev; /* We need to explictly configure the type of DMA for core rev >= 24 */ if (corerev >= 24) { db_index |= (DMA_TYPE_IDMA << DMA_TYPE_SHIFT); } } prot->mb_2_ring_fn(dhd->bus, db_index, TRUE); } else { prot->mb_ring_fn(dhd->bus, ring->wr); } } static void BCMFASTPATH dhd_prot_ring_write_complete(dhd_pub_t *dhd, msgbuf_ring_t * ring, void* p, uint16 nitems) { unsigned long flags_bus; DHD_BUS_LOCK(dhd->bus->bus_lock, flags_bus); __dhd_prot_ring_write_complete(dhd, ring, p, nitems); DHD_BUS_UNLOCK(dhd->bus->bus_lock, flags_bus); } /** * dhd_prot_ring_write_complete_mbdata - will be called from dhd_prot_h2d_mbdata_send_ctrlmsg, * which will hold DHD_BUS_LOCK to update WR pointer, Ring DB and also update bus_low_power_state * to indicate D3_INFORM sent in the same BUS_LOCK. */ static void BCMFASTPATH dhd_prot_ring_write_complete_mbdata(dhd_pub_t *dhd, msgbuf_ring_t * ring, void *p, uint16 nitems, uint32 mb_data) { unsigned long flags_bus; DHD_BUS_LOCK(dhd->bus->bus_lock, flags_bus); __dhd_prot_ring_write_complete(dhd, ring, p, nitems); /* Mark D3_INFORM in the same context to skip ringing H2D DB after D3_INFORM */ if (mb_data == H2D_HOST_D3_INFORM) { dhd->bus->bus_low_power_state = DHD_BUS_D3_INFORM_SENT; } DHD_BUS_UNLOCK(dhd->bus->bus_lock, flags_bus); } /** * dhd_prot_upd_read_idx - Host updates the new RD index on consuming messages * from a D2H ring. The new RD index will be updated in the DMA Index array or * directly in dongle's ring state memory. */ static void dhd_prot_upd_read_idx(dhd_pub_t *dhd, msgbuf_ring_t * ring) { dhd_prot_t *prot = dhd->prot; uint32 db_index; uint corerev; /* For HWA, update db_index and ring mb2 DB and return */ if (HWA_ACTIVE(dhd) && ring->hwa_db_type) { db_index = HWA_DB_INDEX_VALUE(ring->rd) | ring->hwa_db_type; DHD_TRACE(("%s: ring(%s) rd(0x%x) hwa_db_type(0x%x) db_index(0x%x)\n", __FUNCTION__, ring->name, ring->rd, ring->hwa_db_type, db_index)); prot->mb_2_ring_fn(dhd->bus, db_index, FALSE); return; } /* update read index */ /* If dma'ing h2d indices supported * update the r -indices in the * host memory o/w in TCM */ if (IDMA_ACTIVE(dhd)) { dhd_prot_dma_indx_set(dhd, ring->rd, D2H_DMA_INDX_RD_UPD, ring->idx); db_index = IDMA_IDX1; if (dhd->bus->sih) { corerev = dhd->bus->sih->buscorerev; /* We need to explictly configure the type of DMA for core rev >= 24 */ if (corerev >= 24) { db_index |= (DMA_TYPE_IDMA << DMA_TYPE_SHIFT); } } prot->mb_2_ring_fn(dhd->bus, db_index, FALSE); } else if (dhd->dma_h2d_ring_upd_support) { dhd_prot_dma_indx_set(dhd, ring->rd, D2H_DMA_INDX_RD_UPD, ring->idx); } else { dhd_bus_cmn_writeshared(dhd->bus, &(ring->rd), sizeof(uint16), RING_RD_UPD, ring->idx); } } static int dhd_send_d2h_ringcreate(dhd_pub_t *dhd, msgbuf_ring_t *ring_to_create, uint16 ring_type, uint32 req_id) { unsigned long flags; d2h_ring_create_req_t *d2h_ring; uint16 alloced = 0; int ret = BCME_OK; uint16 max_h2d_rings = dhd->bus->max_submission_rings; msgbuf_ring_t *ctrl_ring = &dhd->prot->h2dring_ctrl_subn; DHD_RING_LOCK(ctrl_ring->ring_lock, flags); DHD_TRACE(("%s trying to send D2H ring create Req\n", __FUNCTION__)); if (ring_to_create == NULL) { DHD_ERROR(("%s: FATAL: ring_to_create is NULL\n", __FUNCTION__)); ret = BCME_ERROR; goto err; } /* Request for ring buffer space */ d2h_ring = (d2h_ring_create_req_t *) dhd_prot_alloc_ring_space(dhd, ctrl_ring, DHD_FLOWRING_DEFAULT_NITEMS_POSTED_H2D, &alloced, FALSE); if (d2h_ring == NULL) { DHD_ERROR(("%s: FATAL: No space in control ring to send D2H ring create\n", __FUNCTION__)); ret = BCME_NOMEM; goto err; } ring_to_create->create_req_id = (uint16)req_id; ring_to_create->create_pending = TRUE; /* Common msg buf hdr */ d2h_ring->msg.msg_type = MSG_TYPE_D2H_RING_CREATE; d2h_ring->msg.if_id = 0; d2h_ring->msg.flags = ctrl_ring->current_phase; d2h_ring->msg.request_id = htol32(ring_to_create->create_req_id); d2h_ring->ring_id = htol16(DHD_D2H_RING_OFFSET(ring_to_create->idx, max_h2d_rings)); DHD_ERROR(("%s ringid: %d idx: %d max_h2d: %d\n", __FUNCTION__, d2h_ring->ring_id, ring_to_create->idx, max_h2d_rings)); d2h_ring->ring_type = ring_type; d2h_ring->max_items = htol16(ring_to_create->max_items); d2h_ring->len_item = htol16(ring_to_create->item_len); d2h_ring->ring_ptr.low_addr = ring_to_create->base_addr.low_addr; d2h_ring->ring_ptr.high_addr = ring_to_create->base_addr.high_addr; d2h_ring->flags = 0; d2h_ring->msg.epoch = ctrl_ring->seqnum % H2D_EPOCH_MODULO; ctrl_ring->seqnum++; #ifdef EWP_EDL if (ring_type == BCMPCIE_D2H_RING_TYPE_EDL) { DHD_ERROR(("%s: sending d2h EDL ring create: " "\n max items=%u; len_item=%u; ring_id=%u; low_addr=0x%x; high_addr=0x%x\n", __FUNCTION__, ltoh16(d2h_ring->max_items), ltoh16(d2h_ring->len_item), ltoh16(d2h_ring->ring_id), d2h_ring->ring_ptr.low_addr, d2h_ring->ring_ptr.high_addr)); } #endif /* EWP_EDL */ /* Update the flow_ring's WRITE index */ dhd_prot_ring_write_complete(dhd, ctrl_ring, d2h_ring, DHD_FLOWRING_DEFAULT_NITEMS_POSTED_H2D); DHD_RING_UNLOCK(ctrl_ring->ring_lock, flags); return ret; err: DHD_RING_UNLOCK(ctrl_ring->ring_lock, flags); return ret; } static int dhd_send_h2d_ringcreate(dhd_pub_t *dhd, msgbuf_ring_t *ring_to_create, uint8 ring_type, uint32 id) { unsigned long flags; h2d_ring_create_req_t *h2d_ring; uint16 alloced = 0; uint8 i = 0; int ret = BCME_OK; msgbuf_ring_t *ctrl_ring = &dhd->prot->h2dring_ctrl_subn; DHD_RING_LOCK(ctrl_ring->ring_lock, flags); DHD_TRACE(("%s trying to send H2D ring create Req\n", __FUNCTION__)); if (ring_to_create == NULL) { DHD_ERROR(("%s: FATAL: ring_to_create is NULL\n", __FUNCTION__)); ret = BCME_ERROR; goto err; } /* Request for ring buffer space */ h2d_ring = (h2d_ring_create_req_t *)dhd_prot_alloc_ring_space(dhd, ctrl_ring, DHD_FLOWRING_DEFAULT_NITEMS_POSTED_H2D, &alloced, FALSE); if (h2d_ring == NULL) { DHD_ERROR(("%s: FATAL: No space in control ring to send H2D ring create\n", __FUNCTION__)); ret = BCME_NOMEM; goto err; } ring_to_create->create_req_id = (uint16)id; ring_to_create->create_pending = TRUE; /* Common msg buf hdr */ h2d_ring->msg.msg_type = MSG_TYPE_H2D_RING_CREATE; h2d_ring->msg.if_id = 0; h2d_ring->msg.request_id = htol32(ring_to_create->create_req_id); h2d_ring->msg.flags = ctrl_ring->current_phase; h2d_ring->ring_id = htol16(DHD_H2D_RING_OFFSET(ring_to_create->idx)); h2d_ring->ring_type = ring_type; h2d_ring->max_items = htol16(H2DRING_DYNAMIC_INFO_MAX_ITEM); h2d_ring->n_completion_ids = ring_to_create->n_completion_ids; h2d_ring->len_item = htol16(H2DRING_INFO_BUFPOST_ITEMSIZE); h2d_ring->ring_ptr.low_addr = ring_to_create->base_addr.low_addr; h2d_ring->ring_ptr.high_addr = ring_to_create->base_addr.high_addr; for (i = 0; i < ring_to_create->n_completion_ids; i++) { h2d_ring->completion_ring_ids[i] = htol16(ring_to_create->compeltion_ring_ids[i]); } h2d_ring->flags = 0; h2d_ring->msg.epoch = ctrl_ring->seqnum % H2D_EPOCH_MODULO; ctrl_ring->seqnum++; /* Update the flow_ring's WRITE index */ dhd_prot_ring_write_complete(dhd, ctrl_ring, h2d_ring, DHD_FLOWRING_DEFAULT_NITEMS_POSTED_H2D); DHD_RING_UNLOCK(ctrl_ring->ring_lock, flags); return ret; err: DHD_RING_UNLOCK(ctrl_ring->ring_lock, flags); return ret; } /** * dhd_prot_dma_indx_set - set a new WR or RD index in the DMA index array. * Dongle will DMA the entire array (if DMA_INDX feature is enabled). * See dhd_prot_dma_indx_init() */ void dhd_prot_dma_indx_set(dhd_pub_t *dhd, uint16 new_index, uint8 type, uint16 ringid) { uint8 *ptr; uint16 offset; dhd_prot_t *prot = dhd->prot; uint16 max_h2d_rings = dhd->bus->max_submission_rings; switch (type) { case H2D_DMA_INDX_WR_UPD: ptr = (uint8 *)(prot->h2d_dma_indx_wr_buf.va); offset = DHD_H2D_RING_OFFSET(ringid); break; case D2H_DMA_INDX_RD_UPD: ptr = (uint8 *)(prot->d2h_dma_indx_rd_buf.va); offset = DHD_D2H_RING_OFFSET(ringid, max_h2d_rings); break; case H2D_IFRM_INDX_WR_UPD: ptr = (uint8 *)(prot->h2d_ifrm_indx_wr_buf.va); offset = DHD_H2D_FRM_FLOW_RING_OFFSET(ringid); break; default: DHD_ERROR(("%s: Invalid option for DMAing read/write index\n", __FUNCTION__)); return; } ASSERT(prot->rw_index_sz != 0); ptr += offset * prot->rw_index_sz; *(uint16*)ptr = htol16(new_index); OSL_CACHE_FLUSH((void *)ptr, prot->rw_index_sz); DHD_TRACE(("%s: data %d type %d ringid %d ptr 0x%p offset %d\n", __FUNCTION__, new_index, type, ringid, ptr, offset)); } /* dhd_prot_dma_indx_set */ /** * dhd_prot_dma_indx_get - Fetch a WR or RD index from the dongle DMA-ed index * array. * Dongle DMAes an entire array to host memory (if the feature is enabled). * See dhd_prot_dma_indx_init() */ static uint16 dhd_prot_dma_indx_get(dhd_pub_t *dhd, uint8 type, uint16 ringid) { uint8 *ptr; uint16 data; uint16 offset; dhd_prot_t *prot = dhd->prot; uint16 max_h2d_rings = dhd->bus->max_submission_rings; switch (type) { case H2D_DMA_INDX_WR_UPD: ptr = (uint8 *)(prot->h2d_dma_indx_wr_buf.va); offset = DHD_H2D_RING_OFFSET(ringid); break; case H2D_DMA_INDX_RD_UPD: ptr = (uint8 *)(prot->h2d_dma_indx_rd_buf.va); offset = DHD_H2D_RING_OFFSET(ringid); break; case D2H_DMA_INDX_WR_UPD: ptr = (uint8 *)(prot->d2h_dma_indx_wr_buf.va); offset = DHD_D2H_RING_OFFSET(ringid, max_h2d_rings); break; case D2H_DMA_INDX_RD_UPD: ptr = (uint8 *)(prot->d2h_dma_indx_rd_buf.va); offset = DHD_D2H_RING_OFFSET(ringid, max_h2d_rings); break; default: DHD_ERROR(("%s: Invalid option for DMAing read/write index\n", __FUNCTION__)); return 0; } ASSERT(prot->rw_index_sz != 0); ptr += offset * prot->rw_index_sz; OSL_CACHE_INV((void *)ptr, prot->rw_index_sz); data = LTOH16(*((uint16*)ptr)); DHD_TRACE(("%s: data %d type %d ringid %d ptr 0x%p offset %d\n", __FUNCTION__, data, type, ringid, ptr, offset)); return (data); } /* dhd_prot_dma_indx_get */ /** * An array of DMA read/write indices, containing information about host rings, can be maintained * either in host memory or in device memory, dependent on preprocessor options. This function is, * dependent on these options, called during driver initialization. It reserves and initializes * blocks of DMA'able host memory containing an array of DMA read or DMA write indices. The physical * address of these host memory blocks are communicated to the dongle later on. By reading this host * memory, the dongle learns about the state of the host rings. */ static INLINE int dhd_prot_dma_indx_alloc(dhd_pub_t *dhd, uint8 type, dhd_dma_buf_t *dma_buf, uint32 bufsz) { int rc; if ((dma_buf->len == bufsz) || (dma_buf->va != NULL)) return BCME_OK; rc = dhd_dma_buf_alloc(dhd, dma_buf, bufsz); return rc; } int dhd_prot_dma_indx_init(dhd_pub_t *dhd, uint32 rw_index_sz, uint8 type, uint32 length) { uint32 bufsz; dhd_prot_t *prot = dhd->prot; dhd_dma_buf_t *dma_buf; if (prot == NULL) { DHD_ERROR(("prot is not inited\n")); return BCME_ERROR; } /* Dongle advertizes 2B or 4B RW index size */ ASSERT(rw_index_sz != 0); prot->rw_index_sz = rw_index_sz; bufsz = rw_index_sz * length; switch (type) { case H2D_DMA_INDX_WR_BUF: dma_buf = &prot->h2d_dma_indx_wr_buf; if (dhd_prot_dma_indx_alloc(dhd, type, dma_buf, bufsz)) goto ret_no_mem; DHD_ERROR(("H2D DMA WR INDX : array size %d = %d * %d\n", dma_buf->len, rw_index_sz, length)); break; case H2D_DMA_INDX_RD_BUF: dma_buf = &prot->h2d_dma_indx_rd_buf; if (dhd_prot_dma_indx_alloc(dhd, type, dma_buf, bufsz)) goto ret_no_mem; DHD_ERROR(("H2D DMA RD INDX : array size %d = %d * %d\n", dma_buf->len, rw_index_sz, length)); break; case D2H_DMA_INDX_WR_BUF: dma_buf = &prot->d2h_dma_indx_wr_buf; if (dhd_prot_dma_indx_alloc(dhd, type, dma_buf, bufsz)) goto ret_no_mem; DHD_ERROR(("D2H DMA WR INDX : array size %d = %d * %d\n", dma_buf->len, rw_index_sz, length)); break; case D2H_DMA_INDX_RD_BUF: dma_buf = &prot->d2h_dma_indx_rd_buf; if (dhd_prot_dma_indx_alloc(dhd, type, dma_buf, bufsz)) goto ret_no_mem; DHD_ERROR(("D2H DMA RD INDX : array size %d = %d * %d\n", dma_buf->len, rw_index_sz, length)); break; case H2D_IFRM_INDX_WR_BUF: dma_buf = &prot->h2d_ifrm_indx_wr_buf; if (dhd_prot_dma_indx_alloc(dhd, type, dma_buf, bufsz)) goto ret_no_mem; DHD_ERROR(("H2D IFRM WR INDX : array size %d = %d * %d\n", dma_buf->len, rw_index_sz, length)); break; default: DHD_ERROR(("%s: Unexpected option\n", __FUNCTION__)); return BCME_BADOPTION; } return BCME_OK; ret_no_mem: DHD_ERROR(("%s: dhd_prot_dma_indx_alloc type %d buf_sz %d failure\n", __FUNCTION__, type, bufsz)); return BCME_NOMEM; } /* dhd_prot_dma_indx_init */ /** * Called on checking for 'completion' messages from the dongle. Returns next host buffer to read * from, or NULL if there are no more messages to read. */ static uint8* dhd_prot_get_read_addr(dhd_pub_t *dhd, msgbuf_ring_t *ring, uint32 *available_len) { uint16 wr; uint16 rd; uint16 depth; uint16 items; void *read_addr = NULL; /* address of next msg to be read in ring */ uint16 d2h_wr = 0; DHD_TRACE(("%s: d2h_dma_indx_rd_buf %p, d2h_dma_indx_wr_buf %p\n", __FUNCTION__, (uint32 *)(dhd->prot->d2h_dma_indx_rd_buf.va), (uint32 *)(dhd->prot->d2h_dma_indx_wr_buf.va))); /* Remember the read index in a variable. * This is becuase ring->rd gets updated in the end of this function * So if we have to print the exact read index from which the * message is read its not possible. */ ring->curr_rd = ring->rd; /* update write pointer */ if (dhd->dma_d2h_ring_upd_support) { /* DMAing write/read indices supported */ d2h_wr = dhd_prot_dma_indx_get(dhd, D2H_DMA_INDX_WR_UPD, ring->idx); ring->wr = d2h_wr; } else { dhd_bus_cmn_readshared(dhd->bus, &(ring->wr), RING_WR_UPD, ring->idx); } wr = ring->wr; rd = ring->rd; depth = ring->max_items; /* check for avail space, in number of ring items */ items = READ_AVAIL_SPACE(wr, rd, depth); if (items == 0) return NULL; /* * Note that there are builds where Assert translates to just printk * so, even if we had hit this condition we would never halt. Now * dhd_prot_process_msgtype can get into an big loop if this * happens. */ if (items > ring->max_items) { DHD_ERROR(("\r\n======================= \r\n")); DHD_ERROR(("%s(): ring %p, ring->name %s, ring->max_items %d, items %d \r\n", __FUNCTION__, ring, ring->name, ring->max_items, items)); DHD_ERROR(("wr: %d, rd: %d, depth: %d \r\n", wr, rd, depth)); DHD_ERROR(("dhd->busstate %d bus->wait_for_d3_ack %d \r\n", dhd->busstate, dhd->bus->wait_for_d3_ack)); DHD_ERROR(("\r\n======================= \r\n")); #ifdef DHD_FW_COREDUMP if (dhd->memdump_enabled) { /* collect core dump */ dhd->memdump_type = DUMP_TYPE_RESUMED_ON_INVALID_RING_RDWR; dhd_bus_mem_dump(dhd); } #endif /* DHD_FW_COREDUMP */ *available_len = 0; dhd_schedule_reset(dhd); return NULL; } /* if space is available, calculate address to be read */ read_addr = (char*)ring->dma_buf.va + (rd * ring->item_len); /* update read pointer */ if ((ring->rd + items) >= ring->max_items) ring->rd = 0; else ring->rd += items; ASSERT(ring->rd < ring->max_items); /* convert items to bytes : available_len must be 32bits */ *available_len = (uint32)(items * ring->item_len); OSL_CACHE_INV(read_addr, *available_len); /* return read address */ return read_addr; } /* dhd_prot_get_read_addr */ /** * dhd_prot_h2d_mbdata_send_ctrlmsg is a non-atomic function, * make sure the callers always hold appropriate locks. */ int dhd_prot_h2d_mbdata_send_ctrlmsg(dhd_pub_t *dhd, uint32 mb_data) { h2d_mailbox_data_t *h2d_mb_data; uint16 alloced = 0; msgbuf_ring_t *ctrl_ring = &dhd->prot->h2dring_ctrl_subn; unsigned long flags; int num_post = 1; int i; DHD_INFO(("%s Sending H2D MB data Req data 0x%04x\n", __FUNCTION__, mb_data)); if (!ctrl_ring->inited) { DHD_ERROR(("%s: Ctrl Submit Ring: not inited\n", __FUNCTION__)); return BCME_ERROR; } for (i = 0; i < num_post; i ++) { DHD_RING_LOCK(ctrl_ring->ring_lock, flags); /* Request for ring buffer space */ h2d_mb_data = (h2d_mailbox_data_t *)dhd_prot_alloc_ring_space(dhd, ctrl_ring, DHD_FLOWRING_DEFAULT_NITEMS_POSTED_H2D, &alloced, FALSE); if (h2d_mb_data == NULL) { DHD_ERROR(("%s: FATAL: No space in control ring to send H2D Mb data\n", __FUNCTION__)); DHD_RING_UNLOCK(ctrl_ring->ring_lock, flags); return BCME_NOMEM; } memset(h2d_mb_data, 0, sizeof(h2d_mailbox_data_t)); /* Common msg buf hdr */ h2d_mb_data->msg.msg_type = MSG_TYPE_H2D_MAILBOX_DATA; h2d_mb_data->msg.flags = ctrl_ring->current_phase; h2d_mb_data->msg.epoch = ctrl_ring->seqnum % H2D_EPOCH_MODULO; ctrl_ring->seqnum++; /* Update flow create message */ h2d_mb_data->mail_box_data = htol32(mb_data); { h2d_mb_data->mail_box_data = htol32(mb_data); } DHD_INFO(("%s Send H2D MB data Req data 0x%04x\n", __FUNCTION__, mb_data)); /* upd wrt ptr and raise interrupt */ dhd_prot_ring_write_complete_mbdata(dhd, ctrl_ring, h2d_mb_data, DHD_FLOWRING_DEFAULT_NITEMS_POSTED_H2D, mb_data); DHD_RING_UNLOCK(ctrl_ring->ring_lock, flags); } return 0; } /** Creates a flow ring and informs dongle of this event */ int dhd_prot_flow_ring_create(dhd_pub_t *dhd, flow_ring_node_t *flow_ring_node) { tx_flowring_create_request_t *flow_create_rqst; msgbuf_ring_t *flow_ring; dhd_prot_t *prot = dhd->prot; unsigned long flags; uint16 alloced = 0; msgbuf_ring_t *ctrl_ring = &prot->h2dring_ctrl_subn; uint16 max_flowrings = dhd->bus->max_tx_flowrings; /* Fetch a pre-initialized msgbuf_ring from the flowring pool */ flow_ring = dhd_prot_flowrings_pool_fetch(dhd, flow_ring_node->flowid); if (flow_ring == NULL) { DHD_ERROR(("%s: dhd_prot_flowrings_pool_fetch TX Flowid %d failed\n", __FUNCTION__, flow_ring_node->flowid)); return BCME_NOMEM; } DHD_RING_LOCK(ctrl_ring->ring_lock, flags); /* Request for ctrl_ring buffer space */ flow_create_rqst = (tx_flowring_create_request_t *) dhd_prot_alloc_ring_space(dhd, ctrl_ring, 1, &alloced, FALSE); if (flow_create_rqst == NULL) { dhd_prot_flowrings_pool_release(dhd, flow_ring_node->flowid, flow_ring); DHD_ERROR(("%s: Flow Create Req flowid %d - failure ring space\n", __FUNCTION__, flow_ring_node->flowid)); DHD_RING_UNLOCK(ctrl_ring->ring_lock, flags); return BCME_NOMEM; } flow_ring_node->prot_info = (void *)flow_ring; /* Common msg buf hdr */ flow_create_rqst->msg.msg_type = MSG_TYPE_FLOW_RING_CREATE; flow_create_rqst->msg.if_id = (uint8)flow_ring_node->flow_info.ifindex; flow_create_rqst->msg.request_id = htol32(0); /* TBD */ flow_create_rqst->msg.flags = ctrl_ring->current_phase; flow_create_rqst->msg.epoch = ctrl_ring->seqnum % H2D_EPOCH_MODULO; ctrl_ring->seqnum++; /* Update flow create message */ flow_create_rqst->tid = flow_ring_node->flow_info.tid; flow_create_rqst->flow_ring_id = htol16((uint16)flow_ring_node->flowid); memcpy(flow_create_rqst->sa, flow_ring_node->flow_info.sa, sizeof(flow_create_rqst->sa)); memcpy(flow_create_rqst->da, flow_ring_node->flow_info.da, sizeof(flow_create_rqst->da)); /* CAUTION: ring::base_addr already in Little Endian */ flow_create_rqst->flow_ring_ptr.low_addr = flow_ring->base_addr.low_addr; flow_create_rqst->flow_ring_ptr.high_addr = flow_ring->base_addr.high_addr; flow_create_rqst->max_items = htol16(prot->h2d_max_txpost); flow_create_rqst->len_item = htol16(H2DRING_TXPOST_ITEMSIZE); flow_create_rqst->if_flags = 0; #ifdef DHD_HP2P /* Create HPP flow ring if HP2P is enabled and TID=7 and AWDL interface */ /* and traffic is not multicast */ /* Allow infra interface only if user enabled hp2p_infra_enable thru iovar */ /* Allow only one HP2P Flow active at a time */ if (dhd->hp2p_capable && !dhd->hp2p_ring_active && flow_ring_node->flow_info.tid == HP2P_PRIO && (dhd->hp2p_infra_enable || flow_create_rqst->msg.if_id) && !ETHER_ISMULTI(flow_create_rqst->da)) { flow_create_rqst->if_flags |= BCMPCIE_FLOW_RING_INTF_HP2P; flow_ring_node->hp2p_ring = TRUE; dhd->hp2p_ring_active = TRUE; DHD_ERROR(("%s: flow ring for HP2P tid = %d flowid = %d\n", __FUNCTION__, flow_ring_node->flow_info.tid, flow_ring_node->flowid)); } #endif /* DHD_HP2P */ /* definition for ifrm mask : bit0:d11ac core, bit1:d11ad core * currently it is not used for priority. so uses solely for ifrm mask */ if (IFRM_ACTIVE(dhd)) flow_create_rqst->priority_ifrmmask = (1 << IFRM_DEV_0); DHD_ERROR(("%s: Send Flow Create Req flow ID %d for peer " MACDBG " prio %d ifindex %d\n", __FUNCTION__, flow_ring_node->flowid, MAC2STRDBG(flow_ring_node->flow_info.da), flow_ring_node->flow_info.tid, flow_ring_node->flow_info.ifindex)); /* Update the flow_ring's WRITE index */ if (IDMA_ACTIVE(dhd) || dhd->dma_h2d_ring_upd_support) { dhd_prot_dma_indx_set(dhd, flow_ring->wr, H2D_DMA_INDX_WR_UPD, flow_ring->idx); } else if (IFRM_ACTIVE(dhd) && DHD_IS_FLOWRING(flow_ring->idx, max_flowrings)) { dhd_prot_dma_indx_set(dhd, flow_ring->wr, H2D_IFRM_INDX_WR_UPD, flow_ring->idx); } else { dhd_bus_cmn_writeshared(dhd->bus, &(flow_ring->wr), sizeof(uint16), RING_WR_UPD, flow_ring->idx); } /* update control subn ring's WR index and ring doorbell to dongle */ dhd_prot_ring_write_complete(dhd, ctrl_ring, flow_create_rqst, 1); DHD_RING_UNLOCK(ctrl_ring->ring_lock, flags); return BCME_OK; } /* dhd_prot_flow_ring_create */ /** called on receiving MSG_TYPE_FLOW_RING_CREATE_CMPLT message from dongle */ static void dhd_prot_flow_ring_create_response_process(dhd_pub_t *dhd, void *msg) { tx_flowring_create_response_t *flow_create_resp = (tx_flowring_create_response_t *)msg; DHD_ERROR(("%s: Flow Create Response status = %d Flow %d\n", __FUNCTION__, ltoh16(flow_create_resp->cmplt.status), ltoh16(flow_create_resp->cmplt.flow_ring_id))); dhd_bus_flow_ring_create_response(dhd->bus, ltoh16(flow_create_resp->cmplt.flow_ring_id), ltoh16(flow_create_resp->cmplt.status)); } static void dhd_prot_process_h2d_ring_create_complete(dhd_pub_t *dhd, void *buf) { h2d_ring_create_response_t *resp = (h2d_ring_create_response_t *)buf; DHD_INFO(("%s ring create Response status = %d ring %d, id 0x%04x\n", __FUNCTION__, ltoh16(resp->cmplt.status), ltoh16(resp->cmplt.ring_id), ltoh32(resp->cmn_hdr.request_id))); if ((ltoh32(resp->cmn_hdr.request_id) != DHD_H2D_DBGRING_REQ_PKTID) && (ltoh32(resp->cmn_hdr.request_id) != DHD_H2D_BTLOGRING_REQ_PKTID)) { DHD_ERROR(("invalid request ID with h2d ring create complete\n")); return; } if (dhd->prot->h2dring_info_subn->create_req_id == ltoh32(resp->cmn_hdr.request_id) && !dhd->prot->h2dring_info_subn->create_pending) { DHD_ERROR(("info ring create status for not pending submit ring\n")); } if (ltoh16(resp->cmplt.status) != BCMPCIE_SUCCESS) { DHD_ERROR(("info/btlog ring create failed with status %d\n", ltoh16(resp->cmplt.status))); return; } if (dhd->prot->h2dring_info_subn->create_req_id == ltoh32(resp->cmn_hdr.request_id)) { dhd->prot->h2dring_info_subn->create_pending = FALSE; dhd->prot->h2dring_info_subn->inited = TRUE; DHD_ERROR(("info buffer post after ring create\n")); dhd_prot_infobufpost(dhd, dhd->prot->h2dring_info_subn); } } static void dhd_prot_process_d2h_ring_create_complete(dhd_pub_t *dhd, void *buf) { d2h_ring_create_response_t *resp = (d2h_ring_create_response_t *)buf; DHD_INFO(("%s ring create Response status = %d ring %d, id 0x%04x\n", __FUNCTION__, ltoh16(resp->cmplt.status), ltoh16(resp->cmplt.ring_id), ltoh32(resp->cmn_hdr.request_id))); if ((ltoh32(resp->cmn_hdr.request_id) != DHD_D2H_DBGRING_REQ_PKTID) && (ltoh32(resp->cmn_hdr.request_id) != DHD_D2H_BTLOGRING_REQ_PKTID) && #ifdef DHD_HP2P (ltoh32(resp->cmn_hdr.request_id) != DHD_D2H_HPPRING_TXREQ_PKTID) && (ltoh32(resp->cmn_hdr.request_id) != DHD_D2H_HPPRING_RXREQ_PKTID) && #endif /* DHD_HP2P */ TRUE) { DHD_ERROR(("invalid request ID with d2h ring create complete\n")); return; } if (ltoh32(resp->cmn_hdr.request_id) == DHD_D2H_DBGRING_REQ_PKTID) { #ifdef EWP_EDL if (!dhd->dongle_edl_support) #endif // endif { if (!dhd->prot->d2hring_info_cpln->create_pending) { DHD_ERROR(("info ring create status for not pending cpl ring\n")); return; } if (ltoh16(resp->cmplt.status) != BCMPCIE_SUCCESS) { DHD_ERROR(("info cpl ring create failed with status %d\n", ltoh16(resp->cmplt.status))); return; } dhd->prot->d2hring_info_cpln->create_pending = FALSE; dhd->prot->d2hring_info_cpln->inited = TRUE; } #ifdef EWP_EDL else { if (!dhd->prot->d2hring_edl->create_pending) { DHD_ERROR(("edl ring create status for not pending cpl ring\n")); return; } if (ltoh16(resp->cmplt.status) != BCMPCIE_SUCCESS) { DHD_ERROR(("edl cpl ring create failed with status %d\n", ltoh16(resp->cmplt.status))); return; } dhd->prot->d2hring_edl->create_pending = FALSE; dhd->prot->d2hring_edl->inited = TRUE; } #endif /* EWP_EDL */ } #ifdef DHD_HP2P if (dhd->prot->d2hring_hp2p_txcpl && ltoh32(resp->cmn_hdr.request_id) == DHD_D2H_HPPRING_TXREQ_PKTID) { if (!dhd->prot->d2hring_hp2p_txcpl->create_pending) { DHD_ERROR(("HPP tx ring create status for not pending cpl ring\n")); return; } if (ltoh16(resp->cmplt.status) != BCMPCIE_SUCCESS) { DHD_ERROR(("HPP tx cpl ring create failed with status %d\n", ltoh16(resp->cmplt.status))); return; } dhd->prot->d2hring_hp2p_txcpl->create_pending = FALSE; dhd->prot->d2hring_hp2p_txcpl->inited = TRUE; } if (dhd->prot->d2hring_hp2p_rxcpl && ltoh32(resp->cmn_hdr.request_id) == DHD_D2H_HPPRING_RXREQ_PKTID) { if (!dhd->prot->d2hring_hp2p_rxcpl->create_pending) { DHD_ERROR(("HPP rx ring create status for not pending cpl ring\n")); return; } if (ltoh16(resp->cmplt.status) != BCMPCIE_SUCCESS) { DHD_ERROR(("HPP rx cpl ring create failed with status %d\n", ltoh16(resp->cmplt.status))); return; } dhd->prot->d2hring_hp2p_rxcpl->create_pending = FALSE; dhd->prot->d2hring_hp2p_rxcpl->inited = TRUE; } #endif /* DHD_HP2P */ } static void dhd_prot_process_d2h_mb_data(dhd_pub_t *dhd, void* buf) { d2h_mailbox_data_t *d2h_data; d2h_data = (d2h_mailbox_data_t *)buf; DHD_INFO(("%s dhd_prot_process_d2h_mb_data, 0x%04x\n", __FUNCTION__, d2h_data->d2h_mailbox_data)); dhd_bus_handle_mb_data(dhd->bus, d2h_data->d2h_mailbox_data); } static void dhd_prot_process_d2h_host_ts_complete(dhd_pub_t *dhd, void* buf) { DHD_ERROR(("Timesunc feature not compiled in but GOT HOST_TS_COMPLETE\n")); } /** called on e.g. flow ring delete */ void dhd_prot_clean_flow_ring(dhd_pub_t *dhd, void *msgbuf_flow_info) { msgbuf_ring_t *flow_ring = (msgbuf_ring_t *)msgbuf_flow_info; dhd_prot_ring_detach(dhd, flow_ring); DHD_INFO(("%s Cleaning up Flow \n", __FUNCTION__)); } void dhd_prot_print_flow_ring(dhd_pub_t *dhd, void *msgbuf_flow_info, struct bcmstrbuf *strbuf, const char * fmt) { const char *default_fmt = "RD %d WR %d BASE(VA) %p BASE(PA) %x:%x SIZE %d " "WORK_ITEM_SIZE %d MAX_WORK_ITEMS %d TOTAL_SIZE %d\n"; msgbuf_ring_t *flow_ring = (msgbuf_ring_t *)msgbuf_flow_info; uint16 rd, wr; uint32 dma_buf_len = flow_ring->max_items * flow_ring->item_len; if (fmt == NULL) { fmt = default_fmt; } if (dhd->bus->is_linkdown) { DHD_ERROR(("%s: Skip dumping flowring due to Link down\n", __FUNCTION__)); return; } dhd_bus_cmn_readshared(dhd->bus, &rd, RING_RD_UPD, flow_ring->idx); dhd_bus_cmn_readshared(dhd->bus, &wr, RING_WR_UPD, flow_ring->idx); bcm_bprintf(strbuf, fmt, rd, wr, flow_ring->dma_buf.va, ltoh32(flow_ring->base_addr.high_addr), ltoh32(flow_ring->base_addr.low_addr), flow_ring->item_len, flow_ring->max_items, dma_buf_len); } void dhd_prot_print_info(dhd_pub_t *dhd, struct bcmstrbuf *strbuf) { dhd_prot_t *prot = dhd->prot; bcm_bprintf(strbuf, "IPCrevs: Dev %d, \t Host %d, \tactive %d\n", dhd->prot->device_ipc_version, dhd->prot->host_ipc_version, dhd->prot->active_ipc_version); bcm_bprintf(strbuf, "max Host TS bufs to post: %d, \t posted %d \n", dhd->prot->max_tsbufpost, dhd->prot->cur_ts_bufs_posted); bcm_bprintf(strbuf, "max INFO bufs to post: %d, \t posted %d \n", dhd->prot->max_infobufpost, dhd->prot->infobufpost); bcm_bprintf(strbuf, "max event bufs to post: %d, \t posted %d \n", dhd->prot->max_eventbufpost, dhd->prot->cur_event_bufs_posted); bcm_bprintf(strbuf, "max ioctlresp bufs to post: %d, \t posted %d \n", dhd->prot->max_ioctlrespbufpost, dhd->prot->cur_ioctlresp_bufs_posted); bcm_bprintf(strbuf, "max RX bufs to post: %d, \t posted %d \n", dhd->prot->max_rxbufpost, dhd->prot->rxbufpost); bcm_bprintf(strbuf, "%14s %5s %5s %17s %17s %14s %14s %10s\n", "Type", "RD", "WR", "BASE(VA)", "BASE(PA)", "WORK_ITEM_SIZE", "MAX_WORK_ITEMS", "TOTAL_SIZE"); bcm_bprintf(strbuf, "%14s", "H2DCtrlPost"); dhd_prot_print_flow_ring(dhd, &prot->h2dring_ctrl_subn, strbuf, " %5d %5d %17p %8x:%8x %14d %14d %10d\n"); bcm_bprintf(strbuf, "%14s", "D2HCtrlCpl"); dhd_prot_print_flow_ring(dhd, &prot->d2hring_ctrl_cpln, strbuf, " %5d %5d %17p %8x:%8x %14d %14d %10d\n"); bcm_bprintf(strbuf, "%14s", "H2DRxPost", prot->rxbufpost); dhd_prot_print_flow_ring(dhd, &prot->h2dring_rxp_subn, strbuf, " %5d %5d %17p %8x:%8x %14d %14d %10d\n"); bcm_bprintf(strbuf, "%14s", "D2HRxCpl"); dhd_prot_print_flow_ring(dhd, &prot->d2hring_rx_cpln, strbuf, " %5d %5d %17p %8x:%8x %14d %14d %10d\n"); bcm_bprintf(strbuf, "%14s", "D2HTxCpl"); dhd_prot_print_flow_ring(dhd, &prot->d2hring_tx_cpln, strbuf, " %5d %5d %17p %8x:%8x %14d %14d %10d\n"); if (dhd->prot->h2dring_info_subn != NULL && dhd->prot->d2hring_info_cpln != NULL) { bcm_bprintf(strbuf, "%14s", "H2DRingInfoSub"); dhd_prot_print_flow_ring(dhd, prot->h2dring_info_subn, strbuf, " %5d %5d %17p %8x:%8x %14d %14d %10d\n"); bcm_bprintf(strbuf, "%14s", "D2HRingInfoCpl"); dhd_prot_print_flow_ring(dhd, prot->d2hring_info_cpln, strbuf, " %5d %5d %17p %8x:%8x %14d %14d %10d\n"); } if (dhd->prot->d2hring_edl != NULL) { bcm_bprintf(strbuf, "%14s", "D2HRingEDL"); dhd_prot_print_flow_ring(dhd, prot->d2hring_edl, strbuf, " %5d %5d %17p %8x:%8x %14d %14d %10d\n"); } bcm_bprintf(strbuf, "active_tx_count %d pktidmap_avail(ctrl/rx/tx) %d %d %d\n", OSL_ATOMIC_READ(dhd->osh, &dhd->prot->active_tx_count), DHD_PKTID_AVAIL(dhd->prot->pktid_ctrl_map), DHD_PKTID_AVAIL(dhd->prot->pktid_rx_map), DHD_PKTID_AVAIL(dhd->prot->pktid_tx_map)); } int dhd_prot_flow_ring_delete(dhd_pub_t *dhd, flow_ring_node_t *flow_ring_node) { tx_flowring_delete_request_t *flow_delete_rqst; dhd_prot_t *prot = dhd->prot; unsigned long flags; uint16 alloced = 0; msgbuf_ring_t *ring = &prot->h2dring_ctrl_subn; DHD_RING_LOCK(ring->ring_lock, flags); /* Request for ring buffer space */ flow_delete_rqst = (tx_flowring_delete_request_t *) dhd_prot_alloc_ring_space(dhd, ring, 1, &alloced, FALSE); if (flow_delete_rqst == NULL) { DHD_RING_UNLOCK(ring->ring_lock, flags); DHD_ERROR(("%s: Flow Delete Req - failure ring space\n", __FUNCTION__)); return BCME_NOMEM; } /* Common msg buf hdr */ flow_delete_rqst->msg.msg_type = MSG_TYPE_FLOW_RING_DELETE; flow_delete_rqst->msg.if_id = (uint8)flow_ring_node->flow_info.ifindex; flow_delete_rqst->msg.request_id = htol32(0); /* TBD */ flow_delete_rqst->msg.flags = ring->current_phase; flow_delete_rqst->msg.epoch = ring->seqnum % H2D_EPOCH_MODULO; ring->seqnum++; /* Update Delete info */ flow_delete_rqst->flow_ring_id = htol16((uint16)flow_ring_node->flowid); flow_delete_rqst->reason = htol16(BCME_OK); DHD_ERROR(("%s: Send Flow Delete Req RING ID %d for peer " MACDBG " prio %d ifindex %d\n", __FUNCTION__, flow_ring_node->flowid, MAC2STRDBG(flow_ring_node->flow_info.da), flow_ring_node->flow_info.tid, flow_ring_node->flow_info.ifindex)); /* update ring's WR index and ring doorbell to dongle */ dhd_prot_ring_write_complete(dhd, ring, flow_delete_rqst, 1); DHD_RING_UNLOCK(ring->ring_lock, flags); return BCME_OK; } static void BCMFASTPATH dhd_prot_flow_ring_fastdelete(dhd_pub_t *dhd, uint16 flowid, uint16 rd_idx) { flow_ring_node_t *flow_ring_node = DHD_FLOW_RING(dhd, flowid); msgbuf_ring_t *ring = (msgbuf_ring_t *)flow_ring_node->prot_info; host_txbuf_cmpl_t txstatus; host_txbuf_post_t *txdesc; uint16 wr_idx; DHD_INFO(("%s: FAST delete ring, flowid=%d, rd_idx=%d, wr_idx=%d\n", __FUNCTION__, flowid, rd_idx, ring->wr)); memset(&txstatus, 0, sizeof(txstatus)); txstatus.compl_hdr.flow_ring_id = flowid; txstatus.cmn_hdr.if_id = flow_ring_node->flow_info.ifindex; wr_idx = ring->wr; while (wr_idx != rd_idx) { if (wr_idx) wr_idx--; else wr_idx = ring->max_items - 1; txdesc = (host_txbuf_post_t *)((char *)DHD_RING_BGN_VA(ring) + (wr_idx * ring->item_len)); txstatus.cmn_hdr.request_id = txdesc->cmn_hdr.request_id; dhd_prot_txstatus_process(dhd, &txstatus); } } static void dhd_prot_flow_ring_delete_response_process(dhd_pub_t *dhd, void *msg) { tx_flowring_delete_response_t *flow_delete_resp = (tx_flowring_delete_response_t *)msg; DHD_ERROR(("%s: Flow Delete Response status = %d Flow %d\n", __FUNCTION__, flow_delete_resp->cmplt.status, flow_delete_resp->cmplt.flow_ring_id)); if (dhd->fast_delete_ring_support) { dhd_prot_flow_ring_fastdelete(dhd, flow_delete_resp->cmplt.flow_ring_id, flow_delete_resp->read_idx); } dhd_bus_flow_ring_delete_response(dhd->bus, flow_delete_resp->cmplt.flow_ring_id, flow_delete_resp->cmplt.status); } static void dhd_prot_process_flow_ring_resume_response(dhd_pub_t *dhd, void* msg) { #ifdef IDLE_TX_FLOW_MGMT tx_idle_flowring_resume_response_t *flow_resume_resp = (tx_idle_flowring_resume_response_t *)msg; DHD_ERROR(("%s Flow resume Response status = %d Flow %d\n", __FUNCTION__, flow_resume_resp->cmplt.status, flow_resume_resp->cmplt.flow_ring_id)); dhd_bus_flow_ring_resume_response(dhd->bus, flow_resume_resp->cmplt.flow_ring_id, flow_resume_resp->cmplt.status); #endif /* IDLE_TX_FLOW_MGMT */ } static void dhd_prot_process_flow_ring_suspend_response(dhd_pub_t *dhd, void* msg) { #ifdef IDLE_TX_FLOW_MGMT int16 status; tx_idle_flowring_suspend_response_t *flow_suspend_resp = (tx_idle_flowring_suspend_response_t *)msg; status = flow_suspend_resp->cmplt.status; DHD_ERROR(("%s Flow id %d suspend Response status = %d\n", __FUNCTION__, flow_suspend_resp->cmplt.flow_ring_id, status)); if (status != BCME_OK) { DHD_ERROR(("%s Error in Suspending Flow rings!!" "Dongle will still be polling idle rings!!Status = %d \n", __FUNCTION__, status)); } #endif /* IDLE_TX_FLOW_MGMT */ } int dhd_prot_flow_ring_flush(dhd_pub_t *dhd, flow_ring_node_t *flow_ring_node) { tx_flowring_flush_request_t *flow_flush_rqst; dhd_prot_t *prot = dhd->prot; unsigned long flags; uint16 alloced = 0; msgbuf_ring_t *ring = &prot->h2dring_ctrl_subn; DHD_RING_LOCK(ring->ring_lock, flags); /* Request for ring buffer space */ flow_flush_rqst = (tx_flowring_flush_request_t *) dhd_prot_alloc_ring_space(dhd, ring, 1, &alloced, FALSE); if (flow_flush_rqst == NULL) { DHD_RING_UNLOCK(ring->ring_lock, flags); DHD_ERROR(("%s: Flow Flush Req - failure ring space\n", __FUNCTION__)); return BCME_NOMEM; } /* Common msg buf hdr */ flow_flush_rqst->msg.msg_type = MSG_TYPE_FLOW_RING_FLUSH; flow_flush_rqst->msg.if_id = (uint8)flow_ring_node->flow_info.ifindex; flow_flush_rqst->msg.request_id = htol32(0); /* TBD */ flow_flush_rqst->msg.flags = ring->current_phase; flow_flush_rqst->msg.epoch = ring->seqnum % H2D_EPOCH_MODULO; ring->seqnum++; flow_flush_rqst->flow_ring_id = htol16((uint16)flow_ring_node->flowid); flow_flush_rqst->reason = htol16(BCME_OK); DHD_INFO(("%s: Send Flow Flush Req\n", __FUNCTION__)); /* update ring's WR index and ring doorbell to dongle */ dhd_prot_ring_write_complete(dhd, ring, flow_flush_rqst, 1); DHD_RING_UNLOCK(ring->ring_lock, flags); return BCME_OK; } /* dhd_prot_flow_ring_flush */ static void dhd_prot_flow_ring_flush_response_process(dhd_pub_t *dhd, void *msg) { tx_flowring_flush_response_t *flow_flush_resp = (tx_flowring_flush_response_t *)msg; DHD_INFO(("%s: Flow Flush Response status = %d\n", __FUNCTION__, flow_flush_resp->cmplt.status)); dhd_bus_flow_ring_flush_response(dhd->bus, flow_flush_resp->cmplt.flow_ring_id, flow_flush_resp->cmplt.status); } /** * Request dongle to configure soft doorbells for D2H rings. Host populated soft * doorbell information is transferred to dongle via the d2h ring config control * message. */ void dhd_msgbuf_ring_config_d2h_soft_doorbell(dhd_pub_t *dhd) { #if defined(DHD_D2H_SOFT_DOORBELL_SUPPORT) uint16 ring_idx; uint8 *msg_next; void *msg_start; uint16 alloced = 0; unsigned long flags; dhd_prot_t *prot = dhd->prot; ring_config_req_t *ring_config_req; bcmpcie_soft_doorbell_t *soft_doorbell; msgbuf_ring_t *ctrl_ring = &prot->h2dring_ctrl_subn; const uint16 d2h_rings = BCMPCIE_D2H_COMMON_MSGRINGS; /* Claim space for d2h_ring number of d2h_ring_config_req_t messages */ DHD_RING_LOCK(ctrl_ring->ring_lock, flags); msg_start = dhd_prot_alloc_ring_space(dhd, ctrl_ring, d2h_rings, &alloced, TRUE); if (msg_start == NULL) { DHD_ERROR(("%s Msgbuf no space for %d D2H ring config soft doorbells\n", __FUNCTION__, d2h_rings)); DHD_RING_UNLOCK(ctrl_ring->ring_lock, flags); return; } msg_next = (uint8*)msg_start; for (ring_idx = 0; ring_idx < d2h_rings; ring_idx++) { /* position the ring_config_req into the ctrl subm ring */ ring_config_req = (ring_config_req_t *)msg_next; /* Common msg header */ ring_config_req->msg.msg_type = MSG_TYPE_D2H_RING_CONFIG; ring_config_req->msg.if_id = 0; ring_config_req->msg.flags = 0; ring_config_req->msg.epoch = ctrl_ring->seqnum % H2D_EPOCH_MODULO; ctrl_ring->seqnum++; ring_config_req->msg.request_id = htol32(DHD_FAKE_PKTID); /* unused */ /* Ring Config subtype and d2h ring_id */ ring_config_req->subtype = htol16(D2H_RING_CONFIG_SUBTYPE_SOFT_DOORBELL); ring_config_req->ring_id = htol16(DHD_D2H_RINGID(ring_idx)); /* Host soft doorbell configuration */ soft_doorbell = &prot->soft_doorbell[ring_idx]; ring_config_req->soft_doorbell.value = htol32(soft_doorbell->value); ring_config_req->soft_doorbell.haddr.high = htol32(soft_doorbell->haddr.high); ring_config_req->soft_doorbell.haddr.low = htol32(soft_doorbell->haddr.low); ring_config_req->soft_doorbell.items = htol16(soft_doorbell->items); ring_config_req->soft_doorbell.msecs = htol16(soft_doorbell->msecs); DHD_INFO(("%s: Soft doorbell haddr 0x%08x 0x%08x value 0x%08x\n", __FUNCTION__, ring_config_req->soft_doorbell.haddr.high, ring_config_req->soft_doorbell.haddr.low, ring_config_req->soft_doorbell.value)); msg_next = msg_next + ctrl_ring->item_len; } /* update control subn ring's WR index and ring doorbell to dongle */ dhd_prot_ring_write_complete(dhd, ctrl_ring, msg_start, d2h_rings); DHD_RING_UNLOCK(ctrl_ring->ring_lock, flags); #endif /* DHD_D2H_SOFT_DOORBELL_SUPPORT */ } static void dhd_prot_process_d2h_ring_config_complete(dhd_pub_t *dhd, void *msg) { DHD_INFO(("%s: Ring Config Response - status %d ringid %d\n", __FUNCTION__, ltoh16(((ring_config_resp_t *)msg)->compl_hdr.status), ltoh16(((ring_config_resp_t *)msg)->compl_hdr.flow_ring_id))); } int dhd_prot_debug_info_print(dhd_pub_t *dhd) { dhd_prot_t *prot = dhd->prot; msgbuf_ring_t *ring; uint16 rd, wr; uint32 dma_buf_len; uint64 current_time; ulong ring_tcm_rd_addr; /* dongle address */ ulong ring_tcm_wr_addr; /* dongle address */ DHD_ERROR(("\n ------- DUMPING VERSION INFORMATION ------- \r\n")); DHD_ERROR(("DHD: %s\n", dhd_version)); DHD_ERROR(("Firmware: %s\n", fw_version)); #ifdef DHD_FW_COREDUMP DHD_ERROR(("\n ------- DUMPING CONFIGURATION INFORMATION ------ \r\n")); DHD_ERROR(("memdump mode: %d\n", dhd->memdump_enabled)); #endif /* DHD_FW_COREDUMP */ DHD_ERROR(("\n ------- DUMPING PROTOCOL INFORMATION ------- \r\n")); DHD_ERROR(("ICPrevs: Dev %d, Host %d, active %d\n", prot->device_ipc_version, prot->host_ipc_version, prot->active_ipc_version)); DHD_ERROR(("d2h_intr_method -> %s\n", dhd->bus->d2h_intr_method ? "PCIE_MSI" : "PCIE_INTX")); DHD_ERROR(("max Host TS bufs to post: %d, posted %d\n", prot->max_tsbufpost, prot->cur_ts_bufs_posted)); DHD_ERROR(("max INFO bufs to post: %d, posted %d\n", prot->max_infobufpost, prot->infobufpost)); DHD_ERROR(("max event bufs to post: %d, posted %d\n", prot->max_eventbufpost, prot->cur_event_bufs_posted)); DHD_ERROR(("max ioctlresp bufs to post: %d, posted %d\n", prot->max_ioctlrespbufpost, prot->cur_ioctlresp_bufs_posted)); DHD_ERROR(("max RX bufs to post: %d, posted %d\n", prot->max_rxbufpost, prot->rxbufpost)); DHD_ERROR(("h2d_max_txpost: %d, prot->h2d_max_txpost: %d\n", h2d_max_txpost, prot->h2d_max_txpost)); current_time = OSL_LOCALTIME_NS(); DHD_ERROR(("current_time="SEC_USEC_FMT"\n", GET_SEC_USEC(current_time))); DHD_ERROR(("ioctl_fillup_time="SEC_USEC_FMT " ioctl_ack_time="SEC_USEC_FMT " ioctl_cmplt_time="SEC_USEC_FMT"\n", GET_SEC_USEC(prot->ioctl_fillup_time), GET_SEC_USEC(prot->ioctl_ack_time), GET_SEC_USEC(prot->ioctl_cmplt_time))); /* Check PCIe INT registers */ if (!dhd_pcie_dump_int_regs(dhd)) { DHD_ERROR(("%s : PCIe link might be down\n", __FUNCTION__)); dhd->bus->is_linkdown = TRUE; } DHD_ERROR(("\n ------- DUMPING IOCTL RING RD WR Pointers ------- \r\n")); ring = &prot->h2dring_ctrl_subn; dma_buf_len = ring->max_items * ring->item_len; ring_tcm_rd_addr = dhd->bus->ring_sh[ring->idx].ring_state_r; ring_tcm_wr_addr = dhd->bus->ring_sh[ring->idx].ring_state_w; DHD_ERROR(("CtrlPost: Mem Info: BASE(VA) %p BASE(PA) %x:%x tcm_rd_wr 0x%lx:0x%lx " "SIZE %d \r\n", ring->dma_buf.va, ltoh32(ring->base_addr.high_addr), ltoh32(ring->base_addr.low_addr), ring_tcm_rd_addr, ring_tcm_wr_addr, dma_buf_len)); DHD_ERROR(("CtrlPost: From Host mem: RD: %d WR %d \r\n", ring->rd, ring->wr)); if (dhd->bus->is_linkdown) { DHD_ERROR(("CtrlPost: From Shared Mem: RD and WR are invalid" " due to PCIe link down\r\n")); } else { dhd_bus_cmn_readshared(dhd->bus, &rd, RING_RD_UPD, ring->idx); dhd_bus_cmn_readshared(dhd->bus, &wr, RING_WR_UPD, ring->idx); DHD_ERROR(("CtrlPost: From Shared Mem: RD: %d WR %d \r\n", rd, wr)); } DHD_ERROR(("CtrlPost: seq num: %d \r\n", ring->seqnum % H2D_EPOCH_MODULO)); ring = &prot->d2hring_ctrl_cpln; dma_buf_len = ring->max_items * ring->item_len; ring_tcm_rd_addr = dhd->bus->ring_sh[ring->idx].ring_state_r; ring_tcm_wr_addr = dhd->bus->ring_sh[ring->idx].ring_state_w; DHD_ERROR(("CtrlCpl: Mem Info: BASE(VA) %p BASE(PA) %x:%x tcm_rd_wr 0x%lx:0x%lx " "SIZE %d \r\n", ring->dma_buf.va, ltoh32(ring->base_addr.high_addr), ltoh32(ring->base_addr.low_addr), ring_tcm_rd_addr, ring_tcm_wr_addr, dma_buf_len)); DHD_ERROR(("CtrlCpl: From Host mem: RD: %d WR %d \r\n", ring->rd, ring->wr)); if (dhd->bus->is_linkdown) { DHD_ERROR(("CtrlCpl: From Shared Mem: RD and WR are invalid" " due to PCIe link down\r\n")); } else { dhd_bus_cmn_readshared(dhd->bus, &rd, RING_RD_UPD, ring->idx); dhd_bus_cmn_readshared(dhd->bus, &wr, RING_WR_UPD, ring->idx); DHD_ERROR(("CtrlCpl: From Shared Mem: RD: %d WR %d \r\n", rd, wr)); } DHD_ERROR(("CtrlCpl: Expected seq num: %d \r\n", ring->seqnum % H2D_EPOCH_MODULO)); ring = prot->h2dring_info_subn; if (ring) { dma_buf_len = ring->max_items * ring->item_len; ring_tcm_rd_addr = dhd->bus->ring_sh[ring->idx].ring_state_r; ring_tcm_wr_addr = dhd->bus->ring_sh[ring->idx].ring_state_w; DHD_ERROR(("InfoSub: Mem Info: BASE(VA) %p BASE(PA) %x:%x tcm_rd_wr 0x%lx:0x%lx " "SIZE %d \r\n", ring->dma_buf.va, ltoh32(ring->base_addr.high_addr), ltoh32(ring->base_addr.low_addr), ring_tcm_rd_addr, ring_tcm_wr_addr, dma_buf_len)); DHD_ERROR(("InfoSub: From Host mem: RD: %d WR %d \r\n", ring->rd, ring->wr)); if (dhd->bus->is_linkdown) { DHD_ERROR(("InfoSub: From Shared Mem: RD and WR are invalid" " due to PCIe link down\r\n")); } else { dhd_bus_cmn_readshared(dhd->bus, &rd, RING_RD_UPD, ring->idx); dhd_bus_cmn_readshared(dhd->bus, &wr, RING_WR_UPD, ring->idx); DHD_ERROR(("InfoSub: From Shared Mem: RD: %d WR %d \r\n", rd, wr)); } DHD_ERROR(("InfoSub: seq num: %d \r\n", ring->seqnum % H2D_EPOCH_MODULO)); } ring = prot->d2hring_info_cpln; if (ring) { dma_buf_len = ring->max_items * ring->item_len; ring_tcm_rd_addr = dhd->bus->ring_sh[ring->idx].ring_state_r; ring_tcm_wr_addr = dhd->bus->ring_sh[ring->idx].ring_state_w; DHD_ERROR(("InfoCpl: Mem Info: BASE(VA) %p BASE(PA) %x:%x tcm_rd_wr 0x%lx:0x%lx " "SIZE %d \r\n", ring->dma_buf.va, ltoh32(ring->base_addr.high_addr), ltoh32(ring->base_addr.low_addr), ring_tcm_rd_addr, ring_tcm_wr_addr, dma_buf_len)); DHD_ERROR(("InfoCpl: From Host mem: RD: %d WR %d \r\n", ring->rd, ring->wr)); if (dhd->bus->is_linkdown) { DHD_ERROR(("InfoCpl: From Shared Mem: RD and WR are invalid" " due to PCIe link down\r\n")); } else { dhd_bus_cmn_readshared(dhd->bus, &rd, RING_RD_UPD, ring->idx); dhd_bus_cmn_readshared(dhd->bus, &wr, RING_WR_UPD, ring->idx); DHD_ERROR(("InfoCpl: From Shared Mem: RD: %d WR %d \r\n", rd, wr)); } DHD_ERROR(("InfoCpl: Expected seq num: %d \r\n", ring->seqnum % D2H_EPOCH_MODULO)); } ring = &prot->d2hring_tx_cpln; if (ring) { ring_tcm_rd_addr = dhd->bus->ring_sh[ring->idx].ring_state_r; ring_tcm_wr_addr = dhd->bus->ring_sh[ring->idx].ring_state_w; dma_buf_len = ring->max_items * ring->item_len; DHD_ERROR(("TxCpl: Mem Info: BASE(VA) %p BASE(PA) %x:%x tcm_rd_wr 0x%lx:0x%lx " "SIZE %d \r\n", ring->dma_buf.va, ltoh32(ring->base_addr.high_addr), ltoh32(ring->base_addr.low_addr), ring_tcm_rd_addr, ring_tcm_wr_addr, dma_buf_len)); DHD_ERROR(("TxCpl: From Host mem: RD: %d WR %d \r\n", ring->rd, ring->wr)); if (dhd->bus->is_linkdown) { DHD_ERROR(("TxCpl: From Shared Mem: RD and WR are invalid" " due to PCIe link down\r\n")); } else { dhd_bus_cmn_readshared(dhd->bus, &rd, RING_RD_UPD, ring->idx); dhd_bus_cmn_readshared(dhd->bus, &wr, RING_WR_UPD, ring->idx); DHD_ERROR(("TxCpl: From Shared Mem: RD: %d WR %d \r\n", rd, wr)); } DHD_ERROR(("TxCpl: Expected seq num: %d \r\n", ring->seqnum % D2H_EPOCH_MODULO)); } ring = &prot->d2hring_rx_cpln; if (ring) { ring_tcm_rd_addr = dhd->bus->ring_sh[ring->idx].ring_state_r; ring_tcm_wr_addr = dhd->bus->ring_sh[ring->idx].ring_state_w; dma_buf_len = ring->max_items * ring->item_len; DHD_ERROR(("RxCpl: Mem Info: BASE(VA) %p BASE(PA) %x:%x tcm_rd_wr 0x%lx:0x%lx " "SIZE %d \r\n", ring->dma_buf.va, ltoh32(ring->base_addr.high_addr), ltoh32(ring->base_addr.low_addr), ring_tcm_rd_addr, ring_tcm_wr_addr, dma_buf_len)); DHD_ERROR(("RxCpl: From Host mem: RD: %d WR %d \r\n", ring->rd, ring->wr)); if (dhd->bus->is_linkdown) { DHD_ERROR(("RxCpl: From Shared Mem: RD and WR are invalid" " due to PCIe link down\r\n")); } else { dhd_bus_cmn_readshared(dhd->bus, &rd, RING_RD_UPD, ring->idx); dhd_bus_cmn_readshared(dhd->bus, &wr, RING_WR_UPD, ring->idx); DHD_ERROR(("RxCpl: From Shared Mem: RD: %d WR %d \r\n", rd, wr)); } DHD_ERROR(("RxCpl: Expected seq num: %d \r\n", ring->seqnum % D2H_EPOCH_MODULO)); } #ifdef EWP_EDL ring = prot->d2hring_edl; if (ring) { ring_tcm_rd_addr = dhd->bus->ring_sh[ring->idx].ring_state_r; ring_tcm_wr_addr = dhd->bus->ring_sh[ring->idx].ring_state_w; dma_buf_len = ring->max_items * ring->item_len; DHD_ERROR(("EdlRing: Mem Info: BASE(VA) %p BASE(PA) %x:%x tcm_rd_wr 0x%lx:0x%lx " "SIZE %d \r\n", ring->dma_buf.va, ltoh32(ring->base_addr.high_addr), ltoh32(ring->base_addr.low_addr), ring_tcm_rd_addr, ring_tcm_wr_addr, dma_buf_len)); DHD_ERROR(("EdlRing: From Host mem: RD: %d WR %d \r\n", ring->rd, ring->wr)); if (dhd->bus->is_linkdown) { DHD_ERROR(("EdlRing: From Shared Mem: RD and WR are invalid" " due to PCIe link down\r\n")); } else { dhd_bus_cmn_readshared(dhd->bus, &rd, RING_RD_UPD, ring->idx); dhd_bus_cmn_readshared(dhd->bus, &wr, RING_WR_UPD, ring->idx); DHD_ERROR(("EdlRing: From Shared Mem: RD: %d WR %d \r\n", rd, wr)); } DHD_ERROR(("EdlRing: Expected seq num: %d \r\n", ring->seqnum % D2H_EPOCH_MODULO)); } #endif /* EWP_EDL */ DHD_ERROR(("%s: cur_ioctlresp_bufs_posted %d cur_event_bufs_posted %d\n", __FUNCTION__, prot->cur_ioctlresp_bufs_posted, prot->cur_event_bufs_posted)); #ifdef DHD_LIMIT_MULTI_CLIENT_FLOWRINGS DHD_ERROR(("%s: multi_client_flow_rings:%d max_multi_client_flow_rings:%d\n", __FUNCTION__, dhd->multi_client_flow_rings, dhd->max_multi_client_flow_rings)); #endif /* DHD_LIMIT_MULTI_CLIENT_FLOWRINGS */ DHD_ERROR(("pktid_txq_start_cnt: %d\n", prot->pktid_txq_start_cnt)); DHD_ERROR(("pktid_txq_stop_cnt: %d\n", prot->pktid_txq_stop_cnt)); DHD_ERROR(("pktid_depleted_cnt: %d\n", prot->pktid_depleted_cnt)); dhd_pcie_debug_info_dump(dhd); return 0; } int dhd_prot_ringupd_dump(dhd_pub_t *dhd, struct bcmstrbuf *b) { uint32 *ptr; uint32 value; if (dhd->prot->d2h_dma_indx_wr_buf.va) { uint32 i; uint32 max_h2d_queues = dhd_bus_max_h2d_queues(dhd->bus); OSL_CACHE_INV((void *)dhd->prot->d2h_dma_indx_wr_buf.va, dhd->prot->d2h_dma_indx_wr_buf.len); ptr = (uint32 *)(dhd->prot->d2h_dma_indx_wr_buf.va); bcm_bprintf(b, "\n max_tx_queues %d\n", max_h2d_queues); bcm_bprintf(b, "\nRPTR block H2D common rings, 0x%04x\n", ptr); value = ltoh32(*ptr); bcm_bprintf(b, "\tH2D CTRL: value 0x%04x\n", value); ptr++; value = ltoh32(*ptr); bcm_bprintf(b, "\tH2D RXPOST: value 0x%04x\n", value); ptr++; bcm_bprintf(b, "RPTR block Flow rings , 0x%04x\n", ptr); for (i = BCMPCIE_H2D_COMMON_MSGRINGS; i < max_h2d_queues; i++) { value = ltoh32(*ptr); bcm_bprintf(b, "\tflowring ID %d: value 0x%04x\n", i, value); ptr++; } } if (dhd->prot->h2d_dma_indx_rd_buf.va) { OSL_CACHE_INV((void *)dhd->prot->h2d_dma_indx_rd_buf.va, dhd->prot->h2d_dma_indx_rd_buf.len); ptr = (uint32 *)(dhd->prot->h2d_dma_indx_rd_buf.va); bcm_bprintf(b, "\nWPTR block D2H common rings, 0x%04x\n", ptr); value = ltoh32(*ptr); bcm_bprintf(b, "\tD2H CTRLCPLT: value 0x%04x\n", value); ptr++; value = ltoh32(*ptr); bcm_bprintf(b, "\tD2H TXCPLT: value 0x%04x\n", value); ptr++; value = ltoh32(*ptr); bcm_bprintf(b, "\tD2H RXCPLT: value 0x%04x\n", value); } return 0; } uint32 dhd_prot_metadata_dbg_set(dhd_pub_t *dhd, bool val) { dhd_prot_t *prot = dhd->prot; #if DHD_DBG_SHOW_METADATA prot->metadata_dbg = val; #endif // endif return (uint32)prot->metadata_dbg; } uint32 dhd_prot_metadata_dbg_get(dhd_pub_t *dhd) { dhd_prot_t *prot = dhd->prot; return (uint32)prot->metadata_dbg; } uint32 dhd_prot_metadatalen_set(dhd_pub_t *dhd, uint32 val, bool rx) { dhd_prot_t *prot = dhd->prot; if (rx) prot->rx_metadata_offset = (uint16)val; else prot->tx_metadata_offset = (uint16)val; return dhd_prot_metadatalen_get(dhd, rx); } uint32 dhd_prot_metadatalen_get(dhd_pub_t *dhd, bool rx) { dhd_prot_t *prot = dhd->prot; if (rx) return prot->rx_metadata_offset; else return prot->tx_metadata_offset; } /** optimization to write "n" tx items at a time to ring */ uint32 dhd_prot_txp_threshold(dhd_pub_t *dhd, bool set, uint32 val) { dhd_prot_t *prot = dhd->prot; if (set) prot->txp_threshold = (uint16)val; val = prot->txp_threshold; return val; } #ifdef DHD_RX_CHAINING static INLINE void BCMFASTPATH dhd_rxchain_reset(rxchain_info_t *rxchain) { rxchain->pkt_count = 0; } static void BCMFASTPATH dhd_rxchain_frame(dhd_pub_t *dhd, void *pkt, uint ifidx) { uint8 *eh; uint8 prio; dhd_prot_t *prot = dhd->prot; rxchain_info_t *rxchain = &prot->rxchain; ASSERT(!PKTISCHAINED(pkt)); ASSERT(PKTCLINK(pkt) == NULL); ASSERT(PKTCGETATTR(pkt) == 0); eh = PKTDATA(dhd->osh, pkt); prio = IP_TOS46(eh + ETHER_HDR_LEN) >> IPV4_TOS_PREC_SHIFT; if (rxchain->pkt_count && !(PKT_CTF_CHAINABLE(dhd, ifidx, eh, prio, rxchain->h_sa, rxchain->h_da, rxchain->h_prio))) { /* Different flow - First release the existing chain */ dhd_rxchain_commit(dhd); } /* For routers, with HNDCTF, link the packets using PKTSETCLINK, */ /* so that the chain can be handed off to CTF bridge as is. */ if (rxchain->pkt_count == 0) { /* First packet in chain */ rxchain->pkthead = rxchain->pkttail = pkt; /* Keep a copy of ptr to ether_da, ether_sa and prio */ rxchain->h_da = ((struct ether_header *)eh)->ether_dhost; rxchain->h_sa = ((struct ether_header *)eh)->ether_shost; rxchain->h_prio = prio; rxchain->ifidx = ifidx; rxchain->pkt_count++; } else { /* Same flow - keep chaining */ PKTSETCLINK(rxchain->pkttail, pkt); rxchain->pkttail = pkt; rxchain->pkt_count++; } if ((dhd_rx_pkt_chainable(dhd, ifidx)) && (!ETHER_ISMULTI(rxchain->h_da)) && ((((struct ether_header *)eh)->ether_type == HTON16(ETHER_TYPE_IP)) || (((struct ether_header *)eh)->ether_type == HTON16(ETHER_TYPE_IPV6)))) { PKTSETCHAINED(dhd->osh, pkt); PKTCINCRCNT(rxchain->pkthead); PKTCADDLEN(rxchain->pkthead, PKTLEN(dhd->osh, pkt)); } else { dhd_rxchain_commit(dhd); return; } /* If we have hit the max chain length, dispatch the chain and reset */ if (rxchain->pkt_count >= DHD_PKT_CTF_MAX_CHAIN_LEN) { dhd_rxchain_commit(dhd); } } static void BCMFASTPATH dhd_rxchain_commit(dhd_pub_t *dhd) { dhd_prot_t *prot = dhd->prot; rxchain_info_t *rxchain = &prot->rxchain; if (rxchain->pkt_count == 0) return; /* Release the packets to dhd_linux */ dhd_bus_rx_frame(dhd->bus, rxchain->pkthead, rxchain->ifidx, rxchain->pkt_count); /* Reset the chain */ dhd_rxchain_reset(rxchain); } #endif /* DHD_RX_CHAINING */ #ifdef IDLE_TX_FLOW_MGMT int dhd_prot_flow_ring_resume(dhd_pub_t *dhd, flow_ring_node_t *flow_ring_node) { tx_idle_flowring_resume_request_t *flow_resume_rqst; msgbuf_ring_t *flow_ring; dhd_prot_t *prot = dhd->prot; unsigned long flags; uint16 alloced = 0; msgbuf_ring_t *ctrl_ring = &prot->h2dring_ctrl_subn; /* Fetch a pre-initialized msgbuf_ring from the flowring pool */ flow_ring = dhd_prot_flowrings_pool_fetch(dhd, flow_ring_node->flowid); if (flow_ring == NULL) { DHD_ERROR(("%s: dhd_prot_flowrings_pool_fetch TX Flowid %d failed\n", __FUNCTION__, flow_ring_node->flowid)); return BCME_NOMEM; } DHD_RING_LOCK(ctrl_ring->ring_lock, flags); /* Request for ctrl_ring buffer space */ flow_resume_rqst = (tx_idle_flowring_resume_request_t *) dhd_prot_alloc_ring_space(dhd, ctrl_ring, 1, &alloced, FALSE); if (flow_resume_rqst == NULL) { dhd_prot_flowrings_pool_release(dhd, flow_ring_node->flowid, flow_ring); DHD_ERROR(("%s: Flow resume Req flowid %d - failure ring space\n", __FUNCTION__, flow_ring_node->flowid)); DHD_RING_UNLOCK(ctrl_ring->ring_lock, flags); return BCME_NOMEM; } flow_ring_node->prot_info = (void *)flow_ring; /* Common msg buf hdr */ flow_resume_rqst->msg.msg_type = MSG_TYPE_FLOW_RING_RESUME; flow_resume_rqst->msg.if_id = (uint8)flow_ring_node->flow_info.ifindex; flow_resume_rqst->msg.request_id = htol32(0); /* TBD */ flow_resume_rqst->msg.epoch = ctrl_ring->seqnum % H2D_EPOCH_MODULO; ctrl_ring->seqnum++; flow_resume_rqst->flow_ring_id = htol16((uint16)flow_ring_node->flowid); DHD_ERROR(("%s Send Flow resume Req flow ID %d\n", __FUNCTION__, flow_ring_node->flowid)); /* Update the flow_ring's WRITE index */ if (IDMA_ACTIVE(dhd) || dhd->dma_h2d_ring_upd_support) { dhd_prot_dma_indx_set(dhd, flow_ring->wr, H2D_DMA_INDX_WR_UPD, flow_ring->idx); } else if (IFRM_ACTIVE(dhd) && (flow_ring->idx >= BCMPCIE_H2D_MSGRING_TXFLOW_IDX_START)) { dhd_prot_dma_indx_set(dhd, flow_ring->wr, H2D_IFRM_INDX_WR_UPD, (flow_ring->idx - BCMPCIE_H2D_MSGRING_TXFLOW_IDX_START)); } else { dhd_bus_cmn_writeshared(dhd->bus, &(flow_ring->wr), sizeof(uint16), RING_WR_UPD, flow_ring->idx); } /* update control subn ring's WR index and ring doorbell to dongle */ dhd_prot_ring_write_complete(dhd, ctrl_ring, flow_resume_rqst, 1); DHD_RING_UNLOCK(ctrl_ring->ring_lock, flags); return BCME_OK; } /* dhd_prot_flow_ring_create */ int dhd_prot_flow_ring_batch_suspend_request(dhd_pub_t *dhd, uint16 *ringid, uint16 count) { tx_idle_flowring_suspend_request_t *flow_suspend_rqst; dhd_prot_t *prot = dhd->prot; unsigned long flags; uint16 index; uint16 alloced = 0; msgbuf_ring_t *ring = &prot->h2dring_ctrl_subn; DHD_RING_LOCK(ring->ring_lock, flags); /* Request for ring buffer space */ flow_suspend_rqst = (tx_idle_flowring_suspend_request_t *) dhd_prot_alloc_ring_space(dhd, ring, 1, &alloced, FALSE); if (flow_suspend_rqst == NULL) { DHD_RING_UNLOCK(ring->ring_lock, flags); DHD_ERROR(("%s: Flow suspend Req - failure ring space\n", __FUNCTION__)); return BCME_NOMEM; } /* Common msg buf hdr */ flow_suspend_rqst->msg.msg_type = MSG_TYPE_FLOW_RING_SUSPEND; /* flow_suspend_rqst->msg.if_id = (uint8)flow_ring_node->flow_info.ifindex; */ flow_suspend_rqst->msg.request_id = htol32(0); /* TBD */ flow_suspend_rqst->msg.epoch = ring->seqnum % H2D_EPOCH_MODULO; ring->seqnum++; /* Update flow id info */ for (index = 0; index < count; index++) { flow_suspend_rqst->ring_id[index] = ringid[index]; } flow_suspend_rqst->num = count; DHD_ERROR(("%s sending batch suspend!! count is %d\n", __FUNCTION__, count)); /* update ring's WR index and ring doorbell to dongle */ dhd_prot_ring_write_complete(dhd, ring, flow_suspend_rqst, 1); DHD_RING_UNLOCK(ring->ring_lock, flags); return BCME_OK; } #endif /* IDLE_TX_FLOW_MGMT */ static const char* etd_trap_name(hnd_ext_tag_trap_t tag) { switch (tag) { case TAG_TRAP_SIGNATURE: return "TAG_TRAP_SIGNATURE"; case TAG_TRAP_STACK: return "TAG_TRAP_STACK"; case TAG_TRAP_MEMORY: return "TAG_TRAP_MEMORY"; case TAG_TRAP_DEEPSLEEP: return "TAG_TRAP_DEEPSLEEP"; case TAG_TRAP_PSM_WD: return "TAG_TRAP_PSM_WD"; case TAG_TRAP_PHY: return "TAG_TRAP_PHY"; case TAG_TRAP_BUS: return "TAG_TRAP_BUS"; case TAG_TRAP_MAC_SUSP: return "TAG_TRAP_MAC_SUSP"; case TAG_TRAP_BACKPLANE: return "TAG_TRAP_BACKPLANE"; case TAG_TRAP_PCIE_Q: return "TAG_TRAP_PCIE_Q"; case TAG_TRAP_WLC_STATE: return "TAG_TRAP_WLC_STATE"; case TAG_TRAP_MAC_WAKE: return "TAG_TRAP_MAC_WAKE"; case TAG_TRAP_HMAP: return "TAG_TRAP_HMAP"; case TAG_TRAP_PHYTXERR_THRESH: return "TAG_TRAP_PHYTXERR_THRESH"; case TAG_TRAP_HC_DATA: return "TAG_TRAP_HC_DATA"; case TAG_TRAP_LOG_DATA: return "TAG_TRAP_LOG_DATA"; case TAG_TRAP_CODE: return "TAG_TRAP_CODE"; case TAG_TRAP_LAST: default: return "Unknown"; } return "Unknown"; } int dhd_prot_dump_extended_trap(dhd_pub_t *dhdp, struct bcmstrbuf *b, bool raw) { uint32 i; uint32 *ext_data; hnd_ext_trap_hdr_t *hdr; const bcm_tlv_t *tlv; const trap_t *tr; const uint32 *stack; const hnd_ext_trap_bp_err_t *bpe; uint32 raw_len; ext_data = dhdp->extended_trap_data; /* return if there is no extended trap data */ if (!ext_data || !(dhdp->dongle_trap_data & D2H_DEV_EXT_TRAP_DATA)) { bcm_bprintf(b, "%d (0x%x)", dhdp->dongle_trap_data, dhdp->dongle_trap_data); return BCME_OK; } bcm_bprintf(b, "Extended trap data\n"); /* First word is original trap_data */ bcm_bprintf(b, "trap_data = 0x%08x\n", *ext_data); ext_data++; /* Followed by the extended trap data header */ hdr = (hnd_ext_trap_hdr_t *)ext_data; bcm_bprintf(b, "version: %d, len: %d\n", hdr->version, hdr->len); /* Dump a list of all tags found before parsing data */ bcm_bprintf(b, "\nTags Found:\n"); for (i = 0; i < TAG_TRAP_LAST; i++) { tlv = bcm_parse_tlvs(hdr->data, hdr->len, i); if (tlv) bcm_bprintf(b, "Tag: %d (%s), Length: %d\n", i, etd_trap_name(i), tlv->len); } if (raw) { raw_len = sizeof(hnd_ext_trap_hdr_t) + (hdr->len / 4) + (hdr->len % 4 ? 1 : 0); for (i = 0; i < raw_len; i++) { bcm_bprintf(b, "0x%08x ", ext_data[i]); if (i % 4 == 3) bcm_bprintf(b, "\n"); } return BCME_OK; } /* Extract the various supported TLVs from the extended trap data */ tlv = bcm_parse_tlvs(hdr->data, hdr->len, TAG_TRAP_CODE); if (tlv) { bcm_bprintf(b, "\n%s len: %d\n", etd_trap_name(TAG_TRAP_CODE), tlv->len); bcm_bprintf(b, "ETD TYPE: %d\n", tlv->data[0]); } tlv = bcm_parse_tlvs(hdr->data, hdr->len, TAG_TRAP_SIGNATURE); if (tlv) { bcm_bprintf(b, "\n%s len: %d\n", etd_trap_name(TAG_TRAP_SIGNATURE), tlv->len); tr = (const trap_t *)tlv->data; bcm_bprintf(b, "TRAP %x: pc %x, lr %x, sp %x, cpsr %x, spsr %x\n", tr->type, tr->pc, tr->r14, tr->r13, tr->cpsr, tr->spsr); bcm_bprintf(b, " r0 %x, r1 %x, r2 %x, r3 %x, r4 %x, r5 %x, r6 %x\n", tr->r0, tr->r1, tr->r2, tr->r3, tr->r4, tr->r5, tr->r6); bcm_bprintf(b, " r7 %x, r8 %x, r9 %x, r10 %x, r11 %x, r12 %x\n", tr->r7, tr->r8, tr->r9, tr->r10, tr->r11, tr->r12); } tlv = bcm_parse_tlvs(hdr->data, hdr->len, TAG_TRAP_STACK); if (tlv) { bcm_bprintf(b, "\n%s len: %d\n", etd_trap_name(TAG_TRAP_STACK), tlv->len); stack = (const uint32 *)tlv->data; for (i = 0; i < (uint32)(tlv->len / 4); i++) { bcm_bprintf(b, " 0x%08x\n", *stack); stack++; } } tlv = bcm_parse_tlvs(hdr->data, hdr->len, TAG_TRAP_BACKPLANE); if (tlv) { bcm_bprintf(b, "\n%s len: %d\n", etd_trap_name(TAG_TRAP_BACKPLANE), tlv->len); bpe = (const hnd_ext_trap_bp_err_t *)tlv->data; bcm_bprintf(b, " error: %x\n", bpe->error); bcm_bprintf(b, " coreid: %x\n", bpe->coreid); bcm_bprintf(b, " baseaddr: %x\n", bpe->baseaddr); bcm_bprintf(b, " ioctrl: %x\n", bpe->ioctrl); bcm_bprintf(b, " iostatus: %x\n", bpe->iostatus); bcm_bprintf(b, " resetctrl: %x\n", bpe->resetctrl); bcm_bprintf(b, " resetstatus: %x\n", bpe->resetstatus); bcm_bprintf(b, " errlogctrl: %x\n", bpe->errlogctrl); bcm_bprintf(b, " errlogdone: %x\n", bpe->errlogdone); bcm_bprintf(b, " errlogstatus: %x\n", bpe->errlogstatus); bcm_bprintf(b, " errlogaddrlo: %x\n", bpe->errlogaddrlo); bcm_bprintf(b, " errlogaddrhi: %x\n", bpe->errlogaddrhi); bcm_bprintf(b, " errlogid: %x\n", bpe->errlogid); bcm_bprintf(b, " errloguser: %x\n", bpe->errloguser); bcm_bprintf(b, " errlogflags: %x\n", bpe->errlogflags); } tlv = bcm_parse_tlvs(hdr->data, hdr->len, TAG_TRAP_MEMORY); if (tlv) { const hnd_ext_trap_heap_err_t* hme; bcm_bprintf(b, "\n%s len: %d\n", etd_trap_name(TAG_TRAP_MEMORY), tlv->len); hme = (const hnd_ext_trap_heap_err_t *)tlv->data; bcm_bprintf(b, " arena total: %d\n", hme->arena_total); bcm_bprintf(b, " heap free: %d\n", hme->heap_free); bcm_bprintf(b, " heap in use: %d\n", hme->heap_inuse); bcm_bprintf(b, " mf count: %d\n", hme->mf_count); bcm_bprintf(b, " stack LWM: %x\n", hme->stack_lwm); bcm_bprintf(b, " Histogram:\n"); for (i = 0; i < (HEAP_HISTOGRAM_DUMP_LEN * 2); i += 2) { if (hme->heap_histogm[i] == 0xfffe) bcm_bprintf(b, " Others\t%d\t?\n", hme->heap_histogm[i + 1]); else if (hme->heap_histogm[i] == 0xffff) bcm_bprintf(b, " >= 256K\t%d\t?\n", hme->heap_histogm[i + 1]); else bcm_bprintf(b, " %d\t%d\t%d\n", hme->heap_histogm[i] << 2, hme->heap_histogm[i + 1], (hme->heap_histogm[i] << 2) * hme->heap_histogm[i + 1]); } bcm_bprintf(b, " Max free block: %d\n", hme->max_sz_free_blk[0] << 2); for (i = 1; i < HEAP_MAX_SZ_BLKS_LEN; i++) { bcm_bprintf(b, " Next lgst free block: %d\n", hme->max_sz_free_blk[i] << 2); } } tlv = bcm_parse_tlvs(hdr->data, hdr->len, TAG_TRAP_PCIE_Q); if (tlv) { const hnd_ext_trap_pcie_mem_err_t* pqme; bcm_bprintf(b, "\n%s len: %d\n", etd_trap_name(TAG_TRAP_PCIE_Q), tlv->len); pqme = (const hnd_ext_trap_pcie_mem_err_t *)tlv->data; bcm_bprintf(b, " d2h queue len: %x\n", pqme->d2h_queue_len); bcm_bprintf(b, " d2h req queue len: %x\n", pqme->d2h_req_queue_len); } tlv = bcm_parse_tlvs(hdr->data, hdr->len, TAG_TRAP_WLC_STATE); if (tlv) { const hnd_ext_trap_wlc_mem_err_t* wsme; bcm_bprintf(b, "\n%s len: %d\n", etd_trap_name(TAG_TRAP_WLC_STATE), tlv->len); wsme = (const hnd_ext_trap_wlc_mem_err_t *)tlv->data; bcm_bprintf(b, " instance: %d\n", wsme->instance); bcm_bprintf(b, " associated: %d\n", wsme->associated); bcm_bprintf(b, " peer count: %d\n", wsme->peer_cnt); bcm_bprintf(b, " client count: %d\n", wsme->soft_ap_client_cnt); bcm_bprintf(b, " TX_AC_BK_FIFO: %d\n", wsme->txqueue_len[0]); bcm_bprintf(b, " TX_AC_BE_FIFO: %d\n", wsme->txqueue_len[1]); bcm_bprintf(b, " TX_AC_VI_FIFO: %d\n", wsme->txqueue_len[2]); bcm_bprintf(b, " TX_AC_VO_FIFO: %d\n", wsme->txqueue_len[3]); if (tlv->len >= (sizeof(*wsme) * 2)) { wsme++; bcm_bprintf(b, "\n instance: %d\n", wsme->instance); bcm_bprintf(b, " associated: %d\n", wsme->associated); bcm_bprintf(b, " peer count: %d\n", wsme->peer_cnt); bcm_bprintf(b, " client count: %d\n", wsme->soft_ap_client_cnt); bcm_bprintf(b, " TX_AC_BK_FIFO: %d\n", wsme->txqueue_len[0]); bcm_bprintf(b, " TX_AC_BE_FIFO: %d\n", wsme->txqueue_len[1]); bcm_bprintf(b, " TX_AC_VI_FIFO: %d\n", wsme->txqueue_len[2]); bcm_bprintf(b, " TX_AC_VO_FIFO: %d\n", wsme->txqueue_len[3]); } } tlv = bcm_parse_tlvs(hdr->data, hdr->len, TAG_TRAP_PHY); if (tlv) { const hnd_ext_trap_phydbg_t* phydbg; bcm_bprintf(b, "\n%s len: %d\n", etd_trap_name(TAG_TRAP_PHY), tlv->len); phydbg = (const hnd_ext_trap_phydbg_t *)tlv->data; bcm_bprintf(b, " err: 0x%x\n", phydbg->err); bcm_bprintf(b, " RxFeStatus: 0x%x\n", phydbg->RxFeStatus); bcm_bprintf(b, " TxFIFOStatus0: 0x%x\n", phydbg->TxFIFOStatus0); bcm_bprintf(b, " TxFIFOStatus1: 0x%x\n", phydbg->TxFIFOStatus1); bcm_bprintf(b, " RfseqMode: 0x%x\n", phydbg->RfseqMode); bcm_bprintf(b, " RfseqStatus0: 0x%x\n", phydbg->RfseqStatus0); bcm_bprintf(b, " RfseqStatus1: 0x%x\n", phydbg->RfseqStatus1); bcm_bprintf(b, " RfseqStatus_Ocl: 0x%x\n", phydbg->RfseqStatus_Ocl); bcm_bprintf(b, " RfseqStatus_Ocl1: 0x%x\n", phydbg->RfseqStatus_Ocl1); bcm_bprintf(b, " OCLControl1: 0x%x\n", phydbg->OCLControl1); bcm_bprintf(b, " TxError: 0x%x\n", phydbg->TxError); bcm_bprintf(b, " bphyTxError: 0x%x\n", phydbg->bphyTxError); bcm_bprintf(b, " TxCCKError: 0x%x\n", phydbg->TxCCKError); bcm_bprintf(b, " TxCtrlWrd0: 0x%x\n", phydbg->TxCtrlWrd0); bcm_bprintf(b, " TxCtrlWrd1: 0x%x\n", phydbg->TxCtrlWrd1); bcm_bprintf(b, " TxCtrlWrd2: 0x%x\n", phydbg->TxCtrlWrd2); bcm_bprintf(b, " TxLsig0: 0x%x\n", phydbg->TxLsig0); bcm_bprintf(b, " TxLsig1: 0x%x\n", phydbg->TxLsig1); bcm_bprintf(b, " TxVhtSigA10: 0x%x\n", phydbg->TxVhtSigA10); bcm_bprintf(b, " TxVhtSigA11: 0x%x\n", phydbg->TxVhtSigA11); bcm_bprintf(b, " TxVhtSigA20: 0x%x\n", phydbg->TxVhtSigA20); bcm_bprintf(b, " TxVhtSigA21: 0x%x\n", phydbg->TxVhtSigA21); bcm_bprintf(b, " txPktLength: 0x%x\n", phydbg->txPktLength); bcm_bprintf(b, " txPsdulengthCtr: 0x%x\n", phydbg->txPsdulengthCtr); bcm_bprintf(b, " gpioClkControl: 0x%x\n", phydbg->gpioClkControl); bcm_bprintf(b, " gpioSel: 0x%x\n", phydbg->gpioSel); bcm_bprintf(b, " pktprocdebug: 0x%x\n", phydbg->pktprocdebug); for (i = 0; i < 3; i++) bcm_bprintf(b, " gpioOut[%d]: 0x%x\n", i, phydbg->gpioOut[i]); } tlv = bcm_parse_tlvs(hdr->data, hdr->len, TAG_TRAP_PSM_WD); if (tlv) { const hnd_ext_trap_psmwd_t* psmwd; bcm_bprintf(b, "\n%s len: %d\n", etd_trap_name(TAG_TRAP_PSM_WD), tlv->len); psmwd = (const hnd_ext_trap_psmwd_t *)tlv; bcm_bprintf(b, " version: 0x%x\n", psmwd->version); bcm_bprintf(b, " maccontrol: 0x%x\n", psmwd->i32_maccontrol); bcm_bprintf(b, " maccommand: 0x%x\n", psmwd->i32_maccommand); bcm_bprintf(b, " macintstatus: 0x%x\n", psmwd->i32_macintstatus); bcm_bprintf(b, " phydebug: 0x%x\n", psmwd->i32_phydebug); bcm_bprintf(b, " clk_ctl_st: 0x%x\n", psmwd->i32_clk_ctl_st); for (i = 0; i < 3; i++) bcm_bprintf(b, " psmdebug[%d]: 0x%x\n", i, psmwd->i32_psmdebug[i]); bcm_bprintf(b, " gated clock en: 0x%x\n", psmwd->i16_0x1a8); bcm_bprintf(b, " Rcv Fifo Ctrl: 0x%x\n", psmwd->i16_0x406); bcm_bprintf(b, " Rx ctrl 1: 0x%x\n", psmwd->i16_0x408); bcm_bprintf(b, " Rxe Status 1: 0x%x\n", psmwd->i16_0x41a); bcm_bprintf(b, " Rxe Status 2: 0x%x\n", psmwd->i16_0x41c); bcm_bprintf(b, " rcv wrd count 0: 0x%x\n", psmwd->i16_0x424); bcm_bprintf(b, " rcv wrd count 1: 0x%x\n", psmwd->i16_0x426); bcm_bprintf(b, " RCV_LFIFO_STS: 0x%x\n", psmwd->i16_0x456); bcm_bprintf(b, " PSM_SLP_TMR: 0x%x\n", psmwd->i16_0x480); bcm_bprintf(b, " PSM BRC: 0x%x\n", psmwd->i16_0x490); bcm_bprintf(b, " TXE CTRL: 0x%x\n", psmwd->i16_0x500); bcm_bprintf(b, " TXE Status: 0x%x\n", psmwd->i16_0x50e); bcm_bprintf(b, " TXE_xmtdmabusy: 0x%x\n", psmwd->i16_0x55e); bcm_bprintf(b, " TXE_XMTfifosuspflush: 0x%x\n", psmwd->i16_0x566); bcm_bprintf(b, " IFS Stat: 0x%x\n", psmwd->i16_0x690); bcm_bprintf(b, " IFS_MEDBUSY_CTR: 0x%x\n", psmwd->i16_0x692); bcm_bprintf(b, " IFS_TX_DUR: 0x%x\n", psmwd->i16_0x694); bcm_bprintf(b, " SLow_CTL: 0x%x\n", psmwd->i16_0x6a0); bcm_bprintf(b, " TXE_AQM fifo Ready: 0x%x\n", psmwd->i16_0x838); bcm_bprintf(b, " Dagg ctrl: 0x%x\n", psmwd->i16_0x8c0); bcm_bprintf(b, " shm_prewds_cnt: 0x%x\n", psmwd->shm_prewds_cnt); bcm_bprintf(b, " shm_txtplufl_cnt: 0x%x\n", psmwd->shm_txtplufl_cnt); bcm_bprintf(b, " shm_txphyerr_cnt: 0x%x\n", psmwd->shm_txphyerr_cnt); } tlv = bcm_parse_tlvs(hdr->data, hdr->len, TAG_TRAP_MAC_SUSP); if (tlv) { const hnd_ext_trap_macsusp_t* macsusp; bcm_bprintf(b, "\n%s len: %d\n", etd_trap_name(TAG_TRAP_MAC_SUSP), tlv->len); macsusp = (const hnd_ext_trap_macsusp_t *)tlv; bcm_bprintf(b, " version: %d\n", macsusp->version); bcm_bprintf(b, " trap_reason: %d\n", macsusp->trap_reason); bcm_bprintf(b, " maccontrol: 0x%x\n", macsusp->i32_maccontrol); bcm_bprintf(b, " maccommand: 0x%x\n", macsusp->i32_maccommand); bcm_bprintf(b, " macintstatus: 0x%x\n", macsusp->i32_macintstatus); for (i = 0; i < 4; i++) bcm_bprintf(b, " phydebug[%d]: 0x%x\n", i, macsusp->i32_phydebug[i]); for (i = 0; i < 8; i++) bcm_bprintf(b, " psmdebug[%d]: 0x%x\n", i, macsusp->i32_psmdebug[i]); bcm_bprintf(b, " Rxe Status_1: 0x%x\n", macsusp->i16_0x41a); bcm_bprintf(b, " Rxe Status_2: 0x%x\n", macsusp->i16_0x41c); bcm_bprintf(b, " PSM BRC: 0x%x\n", macsusp->i16_0x490); bcm_bprintf(b, " TXE Status: 0x%x\n", macsusp->i16_0x50e); bcm_bprintf(b, " TXE xmtdmabusy: 0x%x\n", macsusp->i16_0x55e); bcm_bprintf(b, " TXE XMTfifosuspflush: 0x%x\n", macsusp->i16_0x566); bcm_bprintf(b, " IFS Stat: 0x%x\n", macsusp->i16_0x690); bcm_bprintf(b, " IFS MEDBUSY CTR: 0x%x\n", macsusp->i16_0x692); bcm_bprintf(b, " IFS TX DUR: 0x%x\n", macsusp->i16_0x694); bcm_bprintf(b, " WEP CTL: 0x%x\n", macsusp->i16_0x7c0); bcm_bprintf(b, " TXE AQM fifo Ready: 0x%x\n", macsusp->i16_0x838); bcm_bprintf(b, " MHP status: 0x%x\n", macsusp->i16_0x880); bcm_bprintf(b, " shm_prewds_cnt: 0x%x\n", macsusp->shm_prewds_cnt); bcm_bprintf(b, " shm_ucode_dbgst: 0x%x\n", macsusp->shm_ucode_dbgst); } tlv = bcm_parse_tlvs(hdr->data, hdr->len, TAG_TRAP_MAC_WAKE); if (tlv) { const hnd_ext_trap_macenab_t* macwake; bcm_bprintf(b, "\n%s len: %d\n", etd_trap_name(TAG_TRAP_MAC_WAKE), tlv->len); macwake = (const hnd_ext_trap_macenab_t *)tlv; bcm_bprintf(b, " version: 0x%x\n", macwake->version); bcm_bprintf(b, " trap_reason: 0x%x\n", macwake->trap_reason); bcm_bprintf(b, " maccontrol: 0x%x\n", macwake->i32_maccontrol); bcm_bprintf(b, " maccommand: 0x%x\n", macwake->i32_maccommand); bcm_bprintf(b, " macintstatus: 0x%x\n", macwake->i32_macintstatus); for (i = 0; i < 8; i++) bcm_bprintf(b, " psmdebug[%d]: 0x%x\n", i, macwake->i32_psmdebug[i]); bcm_bprintf(b, " clk_ctl_st: 0x%x\n", macwake->i32_clk_ctl_st); bcm_bprintf(b, " powerctl: 0x%x\n", macwake->i32_powerctl); bcm_bprintf(b, " gated clock en: 0x%x\n", macwake->i16_0x1a8); bcm_bprintf(b, " PSM_SLP_TMR: 0x%x\n", macwake->i16_0x480); bcm_bprintf(b, " PSM BRC: 0x%x\n", macwake->i16_0x490); bcm_bprintf(b, " TSF CTL: 0x%x\n", macwake->i16_0x600); bcm_bprintf(b, " IFS Stat: 0x%x\n", macwake->i16_0x690); bcm_bprintf(b, " IFS_MEDBUSY_CTR: 0x%x\n", macwake->i16_0x692); bcm_bprintf(b, " Slow_CTL: 0x%x\n", macwake->i16_0x6a0); bcm_bprintf(b, " Slow_FRAC: 0x%x\n", macwake->i16_0x6a6); bcm_bprintf(b, " fast power up delay: 0x%x\n", macwake->i16_0x6a8); bcm_bprintf(b, " Slow_PER: 0x%x\n", macwake->i16_0x6aa); bcm_bprintf(b, " shm_ucode_dbgst: 0x%x\n", macwake->shm_ucode_dbgst); } tlv = bcm_parse_tlvs(hdr->data, hdr->len, TAG_TRAP_BUS); if (tlv) { const bcm_dngl_pcie_hc_t* hc; bcm_bprintf(b, "\n%s len: %d\n", etd_trap_name(TAG_TRAP_BUS), tlv->len); hc = (const bcm_dngl_pcie_hc_t *)tlv->data; bcm_bprintf(b, " version: 0x%x\n", hc->version); bcm_bprintf(b, " reserved: 0x%x\n", hc->reserved); bcm_bprintf(b, " pcie_err_ind_type: 0x%x\n", hc->pcie_err_ind_type); bcm_bprintf(b, " pcie_flag: 0x%x\n", hc->pcie_flag); bcm_bprintf(b, " pcie_control_reg: 0x%x\n", hc->pcie_control_reg); for (i = 0; i < HC_PCIEDEV_CONFIG_REGLIST_MAX; i++) bcm_bprintf(b, " pcie_config_regs[%d]: 0x%x\n", i, hc->pcie_config_regs[i]); } tlv = bcm_parse_tlvs(hdr->data, hdr->len, TAG_TRAP_HMAP); if (tlv) { const pcie_hmapviolation_t* hmap; hmap = (const pcie_hmapviolation_t *)tlv->data; bcm_bprintf(b, "\n%s len: %d\n", etd_trap_name(TAG_TRAP_HMAP), tlv->len); bcm_bprintf(b, " HMAP Vio Addr Low: 0x%x\n", hmap->hmap_violationaddr_lo); bcm_bprintf(b, " HMAP Vio Addr Hi: 0x%x\n", hmap->hmap_violationaddr_hi); bcm_bprintf(b, " HMAP Vio Info: 0x%x\n", hmap->hmap_violation_info); } return BCME_OK; } #ifdef BCMPCIE int dhd_prot_send_host_timestamp(dhd_pub_t *dhdp, uchar *tlvs, uint16 tlv_len, uint16 seqnum, uint16 xt_id) { dhd_prot_t *prot = dhdp->prot; host_timestamp_msg_t *ts_req; unsigned long flags; uint16 alloced = 0; uchar *ts_tlv_buf; msgbuf_ring_t *ctrl_ring = &prot->h2dring_ctrl_subn; if ((tlvs == NULL) || (tlv_len == 0)) { DHD_ERROR(("%s: argument error tlv: %p, tlv_len %d\n", __FUNCTION__, tlvs, tlv_len)); return -1; } DHD_RING_LOCK(ctrl_ring->ring_lock, flags); /* if Host TS req already pending go away */ if (prot->hostts_req_buf_inuse == TRUE) { DHD_ERROR(("one host TS request already pending at device\n")); DHD_RING_UNLOCK(ctrl_ring->ring_lock, flags); return -1; } /* Request for cbuf space */ ts_req = (host_timestamp_msg_t*)dhd_prot_alloc_ring_space(dhdp, ctrl_ring, DHD_FLOWRING_DEFAULT_NITEMS_POSTED_H2D, &alloced, FALSE); if (ts_req == NULL) { DHD_ERROR(("couldn't allocate space on msgring to send host TS request\n")); DHD_RING_UNLOCK(ctrl_ring->ring_lock, flags); return -1; } /* Common msg buf hdr */ ts_req->msg.msg_type = MSG_TYPE_HOSTTIMSTAMP; ts_req->msg.if_id = 0; ts_req->msg.flags = ctrl_ring->current_phase; ts_req->msg.request_id = DHD_H2D_HOSTTS_REQ_PKTID; ts_req->msg.epoch = ctrl_ring->seqnum % H2D_EPOCH_MODULO; ctrl_ring->seqnum++; ts_req->xt_id = xt_id; ts_req->seqnum = seqnum; /* populate TS req buffer info */ ts_req->input_data_len = htol16(tlv_len); ts_req->host_buf_addr.high = htol32(PHYSADDRHI(prot->hostts_req_buf.pa)); ts_req->host_buf_addr.low = htol32(PHYSADDRLO(prot->hostts_req_buf.pa)); /* copy ioct payload */ ts_tlv_buf = (void *) prot->hostts_req_buf.va; prot->hostts_req_buf_inuse = TRUE; memcpy(ts_tlv_buf, tlvs, tlv_len); OSL_CACHE_FLUSH((void *) prot->hostts_req_buf.va, tlv_len); if (ISALIGNED(ts_tlv_buf, DMA_ALIGN_LEN) == FALSE) { DHD_ERROR(("host TS req buffer address unaligned !!!!! \n")); } DHD_CTL(("submitted Host TS request request_id %d, data_len %d, tx_id %d, seq %d\n", ts_req->msg.request_id, ts_req->input_data_len, ts_req->xt_id, ts_req->seqnum)); /* upd wrt ptr and raise interrupt */ dhd_prot_ring_write_complete(dhdp, ctrl_ring, ts_req, DHD_FLOWRING_DEFAULT_NITEMS_POSTED_H2D); DHD_RING_UNLOCK(ctrl_ring->ring_lock, flags); return 0; } /* dhd_prot_send_host_timestamp */ bool dhd_prot_data_path_tx_timestamp_logging(dhd_pub_t *dhd, bool enable, bool set) { if (set) dhd->prot->tx_ts_log_enabled = enable; return dhd->prot->tx_ts_log_enabled; } bool dhd_prot_data_path_rx_timestamp_logging(dhd_pub_t *dhd, bool enable, bool set) { if (set) dhd->prot->rx_ts_log_enabled = enable; return dhd->prot->rx_ts_log_enabled; } bool dhd_prot_pkt_noretry(dhd_pub_t *dhd, bool enable, bool set) { if (set) dhd->prot->no_retry = enable; return dhd->prot->no_retry; } bool dhd_prot_pkt_noaggr(dhd_pub_t *dhd, bool enable, bool set) { if (set) dhd->prot->no_aggr = enable; return dhd->prot->no_aggr; } bool dhd_prot_pkt_fixed_rate(dhd_pub_t *dhd, bool enable, bool set) { if (set) dhd->prot->fixed_rate = enable; return dhd->prot->fixed_rate; } #endif /* BCMPCIE */ void dhd_prot_dma_indx_free(dhd_pub_t *dhd) { dhd_prot_t *prot = dhd->prot; dhd_dma_buf_free(dhd, &prot->h2d_dma_indx_wr_buf); dhd_dma_buf_free(dhd, &prot->d2h_dma_indx_rd_buf); } void dhd_msgbuf_delay_post_ts_bufs(dhd_pub_t *dhd) { if (dhd->prot->max_tsbufpost > 0) dhd_msgbuf_rxbuf_post_ts_bufs(dhd); } static void BCMFASTPATH dhd_prot_process_fw_timestamp(dhd_pub_t *dhd, void* buf) { DHD_ERROR(("Timesunc feature not compiled in but GOT FW TS message\n")); } uint16 dhd_prot_get_ioctl_trans_id(dhd_pub_t *dhdp) { return dhdp->prot->ioctl_trans_id; } int dhd_get_hscb_info(dhd_pub_t *dhd, void ** va, uint32 *len) { if (!dhd->hscb_enable) { if (len) { /* prevent "Operation not supported" dhd message */ *len = 0; return BCME_OK; } return BCME_UNSUPPORTED; } if (va) { *va = dhd->prot->host_scb_buf.va; } if (len) { *len = dhd->prot->host_scb_buf.len; } return BCME_OK; } #ifdef DHD_HP2P uint32 dhd_prot_pkt_threshold(dhd_pub_t *dhd, bool set, uint32 val) { if (set) dhd->pkt_thresh = (uint16)val; val = dhd->pkt_thresh; return val; } uint32 dhd_prot_time_threshold(dhd_pub_t *dhd, bool set, uint32 val) { if (set) dhd->time_thresh = (uint16)val; val = dhd->time_thresh; return val; } uint32 dhd_prot_pkt_expiry(dhd_pub_t *dhd, bool set, uint32 val) { if (set) dhd->pkt_expiry = (uint16)val; val = dhd->pkt_expiry; return val; } uint8 dhd_prot_hp2p_enable(dhd_pub_t *dhd, bool set, int enable) { uint8 ret = 0; if (set) { dhd->hp2p_enable = (enable & 0xf) ? TRUE : FALSE; dhd->hp2p_infra_enable = ((enable >> 4) & 0xf) ? TRUE : FALSE; if (enable) { dhd_update_flow_prio_map(dhd, DHD_FLOW_PRIO_TID_MAP); } else { dhd_update_flow_prio_map(dhd, DHD_FLOW_PRIO_AC_MAP); } } ret = dhd->hp2p_infra_enable ? 0x1:0x0; ret <<= 4; ret |= dhd->hp2p_enable ? 0x1:0x0; return ret; } static void dhd_update_hp2p_rxstats(dhd_pub_t *dhd, host_rxbuf_cmpl_t *rxstatus) { ts_timestamp_t *ts = (ts_timestamp_t *)&rxstatus->ts; hp2p_info_t *hp2p_info; uint32 dur1; hp2p_info = &dhd->hp2p_info[0]; dur1 = ((ts->high & 0x3FF) * HP2P_TIME_SCALE) / 100; if (dur1 > (MAX_RX_HIST_BIN - 1)) { dur1 = MAX_RX_HIST_BIN - 1; DHD_ERROR(("%s: 0x%x 0x%x\n", __FUNCTION__, ts->low, ts->high)); } hp2p_info->rx_t0[dur1 % MAX_RX_HIST_BIN]++; return; } static void dhd_update_hp2p_txstats(dhd_pub_t *dhd, host_txbuf_cmpl_t *txstatus) { ts_timestamp_t *ts = (ts_timestamp_t *)&txstatus->ts; uint16 flowid = txstatus->compl_hdr.flow_ring_id; uint32 hp2p_flowid, dur1, dur2; hp2p_info_t *hp2p_info; hp2p_flowid = dhd->bus->max_submission_rings - dhd->bus->max_cmn_rings - flowid + 1; hp2p_info = &dhd->hp2p_info[hp2p_flowid]; ts = (ts_timestamp_t *)&(txstatus->ts); dur1 = ((ts->high & 0x3FF) * HP2P_TIME_SCALE) / 1000; if (dur1 > (MAX_TX_HIST_BIN - 1)) { dur1 = MAX_TX_HIST_BIN - 1; DHD_ERROR(("%s: 0x%x 0x%x\n", __FUNCTION__, ts->low, ts->high)); } hp2p_info->tx_t0[dur1 % MAX_TX_HIST_BIN]++; dur2 = (((ts->high >> 10) & 0x3FF) * HP2P_TIME_SCALE) / 1000; if (dur2 > (MAX_TX_HIST_BIN - 1)) { dur2 = MAX_TX_HIST_BIN - 1; DHD_ERROR(("%s: 0x%x 0x%x\n", __FUNCTION__, ts->low, ts->high)); } hp2p_info->tx_t1[dur2 % MAX_TX_HIST_BIN]++; return; } enum hrtimer_restart dhd_hp2p_write(struct hrtimer *timer) { hp2p_info_t *hp2p_info; unsigned long flags; dhd_pub_t *dhdp; #if defined(STRICT_GCC_WARNINGS) && defined(__GNUC__) #pragma GCC diagnostic push #pragma GCC diagnostic ignored "-Wcast-qual" #endif // endif hp2p_info = container_of(timer, hp2p_info_t, timer.timer); #if defined(STRICT_GCC_WARNINGS) && defined(__GNUC__) #pragma GCC diagnostic pop #endif // endif dhdp = hp2p_info->dhd_pub; if (!dhdp) { goto done; } DHD_INFO(("%s: pend_item = %d flowid = %d\n", __FUNCTION__, ((msgbuf_ring_t *)hp2p_info->ring)->pend_items_count, hp2p_info->flowid)); flags = dhd_os_hp2plock(dhdp); dhd_prot_txdata_write_flush(dhdp, hp2p_info->flowid); hp2p_info->hrtimer_init = FALSE; hp2p_info->num_timer_limit++; dhd_os_hp2punlock(dhdp, flags); done: return HRTIMER_NORESTART; } static void dhd_calc_hp2p_burst(dhd_pub_t *dhd, msgbuf_ring_t *ring, uint16 flowid) { hp2p_info_t *hp2p_info; uint16 hp2p_flowid; hp2p_flowid = dhd->bus->max_submission_rings - dhd->bus->max_cmn_rings - flowid + 1; hp2p_info = &dhd->hp2p_info[hp2p_flowid]; if (ring->pend_items_count == dhd->pkt_thresh) { dhd_prot_txdata_write_flush(dhd, flowid); hp2p_info->hrtimer_init = FALSE; hp2p_info->ring = NULL; hp2p_info->num_pkt_limit++; hrtimer_cancel(&hp2p_info->timer.timer); DHD_INFO(("%s: cancel hrtimer for flowid = %d \n" "hp2p_flowid = %d pkt_thresh = %d\n", __FUNCTION__, flowid, hp2p_flowid, dhd->pkt_thresh)); } else { if (hp2p_info->hrtimer_init == FALSE) { hp2p_info->hrtimer_init = TRUE; hp2p_info->flowid = flowid; hp2p_info->dhd_pub = dhd; hp2p_info->ring = ring; hp2p_info->num_timer_start++; tasklet_hrtimer_start(&hp2p_info->timer, ktime_set(0, dhd->time_thresh * 1000), HRTIMER_MODE_REL); DHD_INFO(("%s: start hrtimer for flowid = %d hp2_flowid = %d\n", __FUNCTION__, flowid, hp2p_flowid)); } } return; } static void dhd_update_hp2p_txdesc(dhd_pub_t *dhd, host_txbuf_post_t *txdesc) { uint64 ts; ts = local_clock(); do_div(ts, 1000); txdesc->metadata_buf_len = 0; txdesc->metadata_buf_addr.high_addr = htol32((ts >> 32) & 0xFFFFFFFF); txdesc->metadata_buf_addr.low_addr = htol32(ts & 0xFFFFFFFF); txdesc->exp_time = dhd->pkt_expiry; DHD_INFO(("%s: metadata_high = 0x%x metadata_low = 0x%x exp_time = %x\n", __FUNCTION__, txdesc->metadata_buf_addr.high_addr, txdesc->metadata_buf_addr.low_addr, txdesc->exp_time)); return; } #endif /* DHD_HP2P */ #ifdef DHD_MAP_LOGGING void dhd_prot_smmu_fault_dump(dhd_pub_t *dhdp) { dhd_prot_debug_info_print(dhdp); OSL_DMA_MAP_DUMP(dhdp->osh); #ifdef DHD_MAP_PKTID_LOGGING dhd_pktid_logging_dump(dhdp); #endif /* DHD_MAP_PKTID_LOGGING */ #ifdef DHD_FW_COREDUMP dhdp->memdump_type = DUMP_TYPE_SMMU_FAULT; #ifdef DNGL_AXI_ERROR_LOGGING dhdp->memdump_enabled = DUMP_MEMFILE; dhd_bus_get_mem_dump(dhdp); #else dhdp->memdump_enabled = DUMP_MEMONLY; dhd_bus_mem_dump(dhdp); #endif /* DNGL_AXI_ERROR_LOGGING */ #endif /* DHD_FW_COREDUMP */ } #endif /* DHD_MAP_LOGGING */