271 lines
7.9 KiB
C
271 lines
7.9 KiB
C
/*
|
|
* Copyright 2014 Cisco Systems, Inc. All rights reserved.
|
|
*
|
|
* This program is free software; you may redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License as published by
|
|
* the Free Software Foundation; version 2 of the License.
|
|
*
|
|
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
|
|
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
|
|
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
|
|
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
|
|
* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
|
|
* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
|
|
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
|
|
* SOFTWARE.
|
|
*/
|
|
|
|
#ifndef _VNIC_DEVCMD_H_
|
|
#define _VNIC_DEVCMD_H_
|
|
|
|
#define _CMD_NBITS 14
|
|
#define _CMD_VTYPEBITS 10
|
|
#define _CMD_FLAGSBITS 6
|
|
#define _CMD_DIRBITS 2
|
|
|
|
#define _CMD_NMASK ((1 << _CMD_NBITS)-1)
|
|
#define _CMD_VTYPEMASK ((1 << _CMD_VTYPEBITS)-1)
|
|
#define _CMD_FLAGSMASK ((1 << _CMD_FLAGSBITS)-1)
|
|
#define _CMD_DIRMASK ((1 << _CMD_DIRBITS)-1)
|
|
|
|
#define _CMD_NSHIFT 0
|
|
#define _CMD_VTYPESHIFT (_CMD_NSHIFT+_CMD_NBITS)
|
|
#define _CMD_FLAGSSHIFT (_CMD_VTYPESHIFT+_CMD_VTYPEBITS)
|
|
#define _CMD_DIRSHIFT (_CMD_FLAGSSHIFT+_CMD_FLAGSBITS)
|
|
|
|
/*
|
|
* Direction bits (from host perspective).
|
|
*/
|
|
#define _CMD_DIR_NONE 0U
|
|
#define _CMD_DIR_WRITE 1U
|
|
#define _CMD_DIR_READ 2U
|
|
#define _CMD_DIR_RW (_CMD_DIR_WRITE | _CMD_DIR_READ)
|
|
|
|
/*
|
|
* Flag bits.
|
|
*/
|
|
#define _CMD_FLAGS_NONE 0U
|
|
#define _CMD_FLAGS_NOWAIT 1U
|
|
|
|
/*
|
|
* vNIC type bits.
|
|
*/
|
|
#define _CMD_VTYPE_NONE 0U
|
|
#define _CMD_VTYPE_ENET 1U
|
|
#define _CMD_VTYPE_FC 2U
|
|
#define _CMD_VTYPE_SCSI 4U
|
|
#define _CMD_VTYPE_ALL (_CMD_VTYPE_ENET | _CMD_VTYPE_FC | _CMD_VTYPE_SCSI)
|
|
|
|
/*
|
|
* Used to create cmds..
|
|
*/
|
|
#define _CMDCF(dir, flags, vtype, nr) \
|
|
(((dir) << _CMD_DIRSHIFT) | \
|
|
((flags) << _CMD_FLAGSSHIFT) | \
|
|
((vtype) << _CMD_VTYPESHIFT) | \
|
|
((nr) << _CMD_NSHIFT))
|
|
#define _CMDC(dir, vtype, nr) _CMDCF(dir, 0, vtype, nr)
|
|
#define _CMDCNW(dir, vtype, nr) _CMDCF(dir, _CMD_FLAGS_NOWAIT, vtype, nr)
|
|
|
|
/*
|
|
* Used to decode cmds..
|
|
*/
|
|
#define _CMD_DIR(cmd) (((cmd) >> _CMD_DIRSHIFT) & _CMD_DIRMASK)
|
|
#define _CMD_FLAGS(cmd) (((cmd) >> _CMD_FLAGSSHIFT) & _CMD_FLAGSMASK)
|
|
#define _CMD_VTYPE(cmd) (((cmd) >> _CMD_VTYPESHIFT) & _CMD_VTYPEMASK)
|
|
#define _CMD_N(cmd) (((cmd) >> _CMD_NSHIFT) & _CMD_NMASK)
|
|
|
|
enum vnic_devcmd_cmd {
|
|
CMD_NONE = _CMDC(_CMD_DIR_NONE, _CMD_VTYPE_NONE, 0),
|
|
|
|
/* mcpu fw info in mem: (u64)a0=paddr to struct vnic_devcmd_fw_info */
|
|
CMD_MCPU_FW_INFO = _CMDC(_CMD_DIR_WRITE, _CMD_VTYPE_ALL, 1),
|
|
|
|
/* dev-specific block member:
|
|
* in: (u16)a0=offset,(u8)a1=size
|
|
* out: a0=value */
|
|
CMD_DEV_SPEC = _CMDC(_CMD_DIR_RW, _CMD_VTYPE_ALL, 2),
|
|
|
|
/* stats clear */
|
|
CMD_STATS_CLEAR = _CMDCNW(_CMD_DIR_NONE, _CMD_VTYPE_ALL, 3),
|
|
|
|
/* stats dump in mem: (u64)a0=paddr to stats area,
|
|
* (u16)a1=sizeof stats area */
|
|
CMD_STATS_DUMP = _CMDC(_CMD_DIR_WRITE, _CMD_VTYPE_ALL, 4),
|
|
|
|
/* nic_cfg in (u32)a0 */
|
|
CMD_NIC_CFG = _CMDCNW(_CMD_DIR_WRITE, _CMD_VTYPE_ALL, 16),
|
|
|
|
/* set struct vnic_devcmd_notify buffer in mem:
|
|
* in:
|
|
* (u64)a0=paddr to notify (set paddr=0 to unset)
|
|
* (u32)a1 & 0x00000000ffffffff=sizeof(struct vnic_devcmd_notify)
|
|
* (u16)a1 & 0x0000ffff00000000=intr num (-1 for no intr)
|
|
* out:
|
|
* (u32)a1 = effective size
|
|
*/
|
|
CMD_NOTIFY = _CMDC(_CMD_DIR_RW, _CMD_VTYPE_ALL, 21),
|
|
|
|
/* initiate open sequence (u32)a0=flags (see CMD_OPENF_*) */
|
|
CMD_OPEN = _CMDCNW(_CMD_DIR_WRITE, _CMD_VTYPE_ALL, 23),
|
|
|
|
/* open status:
|
|
* out: a0=0 open complete, a0=1 open in progress */
|
|
CMD_OPEN_STATUS = _CMDC(_CMD_DIR_READ, _CMD_VTYPE_ALL, 24),
|
|
|
|
/* close vnic */
|
|
CMD_CLOSE = _CMDC(_CMD_DIR_NONE, _CMD_VTYPE_ALL, 25),
|
|
|
|
/* initialize virtual link: (u32)a0=flags (see CMD_INITF_*) */
|
|
CMD_INIT = _CMDCNW(_CMD_DIR_READ, _CMD_VTYPE_ALL, 26),
|
|
|
|
/* enable virtual link */
|
|
CMD_ENABLE = _CMDCNW(_CMD_DIR_WRITE, _CMD_VTYPE_ALL, 28),
|
|
|
|
/* enable virtual link, waiting variant. */
|
|
CMD_ENABLE_WAIT = _CMDC(_CMD_DIR_WRITE, _CMD_VTYPE_ALL, 28),
|
|
|
|
/* disable virtual link */
|
|
CMD_DISABLE = _CMDC(_CMD_DIR_NONE, _CMD_VTYPE_ALL, 29),
|
|
|
|
/* stats dump all vnics on uplink in mem: (u64)a0=paddr (u32)a1=uif */
|
|
CMD_STATS_DUMP_ALL = _CMDC(_CMD_DIR_WRITE, _CMD_VTYPE_ALL, 30),
|
|
|
|
/* init status:
|
|
* out: a0=0 init complete, a0=1 init in progress
|
|
* if a0=0, a1=errno */
|
|
CMD_INIT_STATUS = _CMDC(_CMD_DIR_READ, _CMD_VTYPE_ALL, 31),
|
|
|
|
/* undo initialize of virtual link */
|
|
CMD_DEINIT = _CMDCNW(_CMD_DIR_NONE, _CMD_VTYPE_ALL, 34),
|
|
|
|
/* check fw capability of a cmd:
|
|
* in: (u32)a0=cmd
|
|
* out: (u32)a0=errno, 0:valid cmd, a1=supported VNIC_STF_* bits */
|
|
CMD_CAPABILITY = _CMDC(_CMD_DIR_RW, _CMD_VTYPE_ALL, 36),
|
|
|
|
/*
|
|
* Initialization for the devcmd2 interface.
|
|
* in: (u64) a0=host result buffer physical address
|
|
* in: (u16) a1=number of entries in result buffer
|
|
*/
|
|
CMD_INITIALIZE_DEVCMD2 = _CMDC(_CMD_DIR_WRITE, _CMD_VTYPE_ALL, 57)
|
|
};
|
|
|
|
/* flags for CMD_OPEN */
|
|
#define CMD_OPENF_OPROM 0x1 /* open coming from option rom */
|
|
|
|
/* flags for CMD_INIT */
|
|
#define CMD_INITF_DEFAULT_MAC 0x1 /* init with default mac addr */
|
|
|
|
/* flags for CMD_PACKET_FILTER */
|
|
#define CMD_PFILTER_DIRECTED 0x01
|
|
#define CMD_PFILTER_MULTICAST 0x02
|
|
#define CMD_PFILTER_BROADCAST 0x04
|
|
#define CMD_PFILTER_PROMISCUOUS 0x08
|
|
#define CMD_PFILTER_ALL_MULTICAST 0x10
|
|
|
|
enum vnic_devcmd_status {
|
|
STAT_NONE = 0,
|
|
STAT_BUSY = 1 << 0, /* cmd in progress */
|
|
STAT_ERROR = 1 << 1, /* last cmd caused error (code in a0) */
|
|
};
|
|
|
|
enum vnic_devcmd_error {
|
|
ERR_SUCCESS = 0,
|
|
ERR_EINVAL = 1,
|
|
ERR_EFAULT = 2,
|
|
ERR_EPERM = 3,
|
|
ERR_EBUSY = 4,
|
|
ERR_ECMDUNKNOWN = 5,
|
|
ERR_EBADSTATE = 6,
|
|
ERR_ENOMEM = 7,
|
|
ERR_ETIMEDOUT = 8,
|
|
ERR_ELINKDOWN = 9,
|
|
};
|
|
|
|
struct vnic_devcmd_fw_info {
|
|
char fw_version[32];
|
|
char fw_build[32];
|
|
char hw_version[32];
|
|
char hw_serial_number[32];
|
|
};
|
|
|
|
struct vnic_devcmd_notify {
|
|
u32 csum; /* checksum over following words */
|
|
|
|
u32 link_state; /* link up == 1 */
|
|
u32 port_speed; /* effective port speed (rate limit) */
|
|
u32 mtu; /* MTU */
|
|
u32 msglvl; /* requested driver msg lvl */
|
|
u32 uif; /* uplink interface */
|
|
u32 status; /* status bits (see VNIC_STF_*) */
|
|
u32 error; /* error code (see ERR_*) for first ERR */
|
|
u32 link_down_cnt; /* running count of link down transitions */
|
|
};
|
|
#define VNIC_STF_FATAL_ERR 0x0001 /* fatal fw error */
|
|
|
|
struct vnic_devcmd_provinfo {
|
|
u8 oui[3];
|
|
u8 type;
|
|
u8 data[0];
|
|
};
|
|
|
|
/*
|
|
* Writing cmd register causes STAT_BUSY to get set in status register.
|
|
* When cmd completes, STAT_BUSY will be cleared.
|
|
*
|
|
* If cmd completed successfully STAT_ERROR will be clear
|
|
* and args registers contain cmd-specific results.
|
|
*
|
|
* If cmd error, STAT_ERROR will be set and args[0] contains error code.
|
|
*
|
|
* status register is read-only. While STAT_BUSY is set,
|
|
* all other register contents are read-only.
|
|
*/
|
|
|
|
/* Make sizeof(vnic_devcmd) a power-of-2 for I/O BAR. */
|
|
#define VNIC_DEVCMD_NARGS 15
|
|
struct vnic_devcmd {
|
|
u32 status; /* RO */
|
|
u32 cmd; /* RW */
|
|
u64 args[VNIC_DEVCMD_NARGS]; /* RW cmd args (little-endian) */
|
|
};
|
|
|
|
|
|
/*
|
|
* Version 2 of the interface.
|
|
*
|
|
* Some things are carried over, notably the vnic_devcmd_cmd enum.
|
|
*/
|
|
|
|
/*
|
|
* Flags for vnic_devcmd2.flags
|
|
*/
|
|
|
|
#define DEVCMD2_FNORESULT 0x1 /* Don't copy result to host */
|
|
|
|
#define VNIC_DEVCMD2_NARGS VNIC_DEVCMD_NARGS
|
|
struct vnic_devcmd2 {
|
|
u16 pad;
|
|
u16 flags;
|
|
u32 cmd; /* same command #defines as original */
|
|
u64 args[VNIC_DEVCMD2_NARGS];
|
|
};
|
|
|
|
#define VNIC_DEVCMD2_NRESULTS VNIC_DEVCMD_NARGS
|
|
struct devcmd2_result {
|
|
u64 results[VNIC_DEVCMD2_NRESULTS];
|
|
u32 pad;
|
|
u16 completed_index; /* into copy WQ */
|
|
u8 error; /* same error codes as original */
|
|
u8 color; /* 0 or 1 as with completion queues */
|
|
};
|
|
|
|
#define DEVCMD2_RING_SIZE 32
|
|
#define DEVCMD2_DESC_SIZE 128
|
|
|
|
#define DEVCMD2_RESULTS_SIZE_MAX ((1 << 16) - 1)
|
|
|
|
#endif /* _VNIC_DEVCMD_H_ */
|