1099 lines
26 KiB
C
1099 lines
26 KiB
C
/*
|
|
* Huawei HiNIC PCI Express Linux driver
|
|
* Copyright(c) 2017 Huawei Technologies Co., Ltd
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify it
|
|
* under the terms and conditions of the GNU General Public License,
|
|
* version 2, as published by the Free Software Foundation.
|
|
*
|
|
* This program is distributed in the hope it will be useful, but WITHOUT
|
|
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
|
|
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
|
|
* for more details.
|
|
*
|
|
*/
|
|
|
|
#include <linux/kernel.h>
|
|
#include <linux/module.h>
|
|
#include <linux/moduleparam.h>
|
|
#include <linux/pci.h>
|
|
#include <linux/device.h>
|
|
#include <linux/errno.h>
|
|
#include <linux/types.h>
|
|
#include <linux/etherdevice.h>
|
|
#include <linux/netdevice.h>
|
|
#include <linux/slab.h>
|
|
#include <linux/if_vlan.h>
|
|
#include <linux/semaphore.h>
|
|
#include <linux/workqueue.h>
|
|
#include <net/ip.h>
|
|
#include <linux/bitops.h>
|
|
#include <linux/bitmap.h>
|
|
#include <linux/delay.h>
|
|
#include <linux/err.h>
|
|
|
|
#include "hinic_hw_qp.h"
|
|
#include "hinic_hw_dev.h"
|
|
#include "hinic_port.h"
|
|
#include "hinic_tx.h"
|
|
#include "hinic_rx.h"
|
|
#include "hinic_dev.h"
|
|
|
|
MODULE_AUTHOR("Huawei Technologies CO., Ltd");
|
|
MODULE_DESCRIPTION("Huawei Intelligent NIC driver");
|
|
MODULE_LICENSE("GPL");
|
|
|
|
static unsigned int tx_weight = 64;
|
|
module_param(tx_weight, uint, 0644);
|
|
MODULE_PARM_DESC(tx_weight, "Number Tx packets for NAPI budget (default=64)");
|
|
|
|
static unsigned int rx_weight = 64;
|
|
module_param(rx_weight, uint, 0644);
|
|
MODULE_PARM_DESC(rx_weight, "Number Rx packets for NAPI budget (default=64)");
|
|
|
|
#define HINIC_DEV_ID_QUAD_PORT_25GE 0x1822
|
|
#define HINIC_DEV_ID_DUAL_PORT_25GE 0x0200
|
|
#define HINIC_DEV_ID_DUAL_PORT_100GE 0x0201
|
|
|
|
#define HINIC_WQ_NAME "hinic_dev"
|
|
|
|
#define MSG_ENABLE_DEFAULT (NETIF_MSG_DRV | NETIF_MSG_PROBE | \
|
|
NETIF_MSG_IFUP | \
|
|
NETIF_MSG_TX_ERR | NETIF_MSG_RX_ERR)
|
|
|
|
#define VLAN_BITMAP_SIZE(nic_dev) (ALIGN(VLAN_N_VID, 8) / 8)
|
|
|
|
#define work_to_rx_mode_work(work) \
|
|
container_of(work, struct hinic_rx_mode_work, work)
|
|
|
|
#define rx_mode_work_to_nic_dev(rx_mode_work) \
|
|
container_of(rx_mode_work, struct hinic_dev, rx_mode_work)
|
|
|
|
static int change_mac_addr(struct net_device *netdev, const u8 *addr);
|
|
|
|
static void set_link_speed(struct ethtool_link_ksettings *link_ksettings,
|
|
enum hinic_speed speed)
|
|
{
|
|
switch (speed) {
|
|
case HINIC_SPEED_10MB_LINK:
|
|
link_ksettings->base.speed = SPEED_10;
|
|
break;
|
|
|
|
case HINIC_SPEED_100MB_LINK:
|
|
link_ksettings->base.speed = SPEED_100;
|
|
break;
|
|
|
|
case HINIC_SPEED_1000MB_LINK:
|
|
link_ksettings->base.speed = SPEED_1000;
|
|
break;
|
|
|
|
case HINIC_SPEED_10GB_LINK:
|
|
link_ksettings->base.speed = SPEED_10000;
|
|
break;
|
|
|
|
case HINIC_SPEED_25GB_LINK:
|
|
link_ksettings->base.speed = SPEED_25000;
|
|
break;
|
|
|
|
case HINIC_SPEED_40GB_LINK:
|
|
link_ksettings->base.speed = SPEED_40000;
|
|
break;
|
|
|
|
case HINIC_SPEED_100GB_LINK:
|
|
link_ksettings->base.speed = SPEED_100000;
|
|
break;
|
|
|
|
default:
|
|
link_ksettings->base.speed = SPEED_UNKNOWN;
|
|
break;
|
|
}
|
|
}
|
|
|
|
static int hinic_get_link_ksettings(struct net_device *netdev,
|
|
struct ethtool_link_ksettings
|
|
*link_ksettings)
|
|
{
|
|
struct hinic_dev *nic_dev = netdev_priv(netdev);
|
|
enum hinic_port_link_state link_state;
|
|
struct hinic_port_cap port_cap;
|
|
int err;
|
|
|
|
ethtool_link_ksettings_zero_link_mode(link_ksettings, advertising);
|
|
ethtool_link_ksettings_add_link_mode(link_ksettings, supported,
|
|
Autoneg);
|
|
|
|
link_ksettings->base.speed = SPEED_UNKNOWN;
|
|
link_ksettings->base.autoneg = AUTONEG_DISABLE;
|
|
link_ksettings->base.duplex = DUPLEX_UNKNOWN;
|
|
|
|
err = hinic_port_get_cap(nic_dev, &port_cap);
|
|
if (err) {
|
|
netif_err(nic_dev, drv, netdev,
|
|
"Failed to get port capabilities\n");
|
|
return err;
|
|
}
|
|
|
|
err = hinic_port_link_state(nic_dev, &link_state);
|
|
if (err) {
|
|
netif_err(nic_dev, drv, netdev,
|
|
"Failed to get port link state\n");
|
|
return err;
|
|
}
|
|
|
|
if (link_state != HINIC_LINK_STATE_UP) {
|
|
netif_info(nic_dev, drv, netdev, "No link\n");
|
|
return err;
|
|
}
|
|
|
|
set_link_speed(link_ksettings, port_cap.speed);
|
|
|
|
if (!!(port_cap.autoneg_cap & HINIC_AUTONEG_SUPPORTED))
|
|
ethtool_link_ksettings_add_link_mode(link_ksettings,
|
|
advertising, Autoneg);
|
|
|
|
if (port_cap.autoneg_state == HINIC_AUTONEG_ACTIVE)
|
|
link_ksettings->base.autoneg = AUTONEG_ENABLE;
|
|
|
|
link_ksettings->base.duplex = (port_cap.duplex == HINIC_DUPLEX_FULL) ?
|
|
DUPLEX_FULL : DUPLEX_HALF;
|
|
return 0;
|
|
}
|
|
|
|
static void hinic_get_drvinfo(struct net_device *netdev,
|
|
struct ethtool_drvinfo *info)
|
|
{
|
|
struct hinic_dev *nic_dev = netdev_priv(netdev);
|
|
struct hinic_hwdev *hwdev = nic_dev->hwdev;
|
|
struct hinic_hwif *hwif = hwdev->hwif;
|
|
|
|
strlcpy(info->driver, HINIC_DRV_NAME, sizeof(info->driver));
|
|
strlcpy(info->bus_info, pci_name(hwif->pdev), sizeof(info->bus_info));
|
|
}
|
|
|
|
static void hinic_get_ringparam(struct net_device *netdev,
|
|
struct ethtool_ringparam *ring)
|
|
{
|
|
ring->rx_max_pending = HINIC_RQ_DEPTH;
|
|
ring->tx_max_pending = HINIC_SQ_DEPTH;
|
|
ring->rx_pending = HINIC_RQ_DEPTH;
|
|
ring->tx_pending = HINIC_SQ_DEPTH;
|
|
}
|
|
|
|
static void hinic_get_channels(struct net_device *netdev,
|
|
struct ethtool_channels *channels)
|
|
{
|
|
struct hinic_dev *nic_dev = netdev_priv(netdev);
|
|
struct hinic_hwdev *hwdev = nic_dev->hwdev;
|
|
|
|
channels->max_rx = hwdev->nic_cap.max_qps;
|
|
channels->max_tx = hwdev->nic_cap.max_qps;
|
|
channels->max_other = 0;
|
|
channels->max_combined = 0;
|
|
channels->rx_count = hinic_hwdev_num_qps(hwdev);
|
|
channels->tx_count = hinic_hwdev_num_qps(hwdev);
|
|
channels->other_count = 0;
|
|
channels->combined_count = 0;
|
|
}
|
|
|
|
static const struct ethtool_ops hinic_ethtool_ops = {
|
|
.get_link_ksettings = hinic_get_link_ksettings,
|
|
.get_drvinfo = hinic_get_drvinfo,
|
|
.get_link = ethtool_op_get_link,
|
|
.get_ringparam = hinic_get_ringparam,
|
|
.get_channels = hinic_get_channels,
|
|
};
|
|
|
|
static void update_rx_stats(struct hinic_dev *nic_dev, struct hinic_rxq *rxq)
|
|
{
|
|
struct hinic_rxq_stats *nic_rx_stats = &nic_dev->rx_stats;
|
|
struct hinic_rxq_stats rx_stats;
|
|
|
|
u64_stats_init(&rx_stats.syncp);
|
|
|
|
hinic_rxq_get_stats(rxq, &rx_stats);
|
|
|
|
u64_stats_update_begin(&nic_rx_stats->syncp);
|
|
nic_rx_stats->bytes += rx_stats.bytes;
|
|
nic_rx_stats->pkts += rx_stats.pkts;
|
|
u64_stats_update_end(&nic_rx_stats->syncp);
|
|
|
|
hinic_rxq_clean_stats(rxq);
|
|
}
|
|
|
|
static void update_tx_stats(struct hinic_dev *nic_dev, struct hinic_txq *txq)
|
|
{
|
|
struct hinic_txq_stats *nic_tx_stats = &nic_dev->tx_stats;
|
|
struct hinic_txq_stats tx_stats;
|
|
|
|
u64_stats_init(&tx_stats.syncp);
|
|
|
|
hinic_txq_get_stats(txq, &tx_stats);
|
|
|
|
u64_stats_update_begin(&nic_tx_stats->syncp);
|
|
nic_tx_stats->bytes += tx_stats.bytes;
|
|
nic_tx_stats->pkts += tx_stats.pkts;
|
|
nic_tx_stats->tx_busy += tx_stats.tx_busy;
|
|
nic_tx_stats->tx_wake += tx_stats.tx_wake;
|
|
nic_tx_stats->tx_dropped += tx_stats.tx_dropped;
|
|
u64_stats_update_end(&nic_tx_stats->syncp);
|
|
|
|
hinic_txq_clean_stats(txq);
|
|
}
|
|
|
|
static void update_nic_stats(struct hinic_dev *nic_dev)
|
|
{
|
|
int i, num_qps = hinic_hwdev_num_qps(nic_dev->hwdev);
|
|
|
|
for (i = 0; i < num_qps; i++)
|
|
update_rx_stats(nic_dev, &nic_dev->rxqs[i]);
|
|
|
|
for (i = 0; i < num_qps; i++)
|
|
update_tx_stats(nic_dev, &nic_dev->txqs[i]);
|
|
}
|
|
|
|
/**
|
|
* create_txqs - Create the Logical Tx Queues of specific NIC device
|
|
* @nic_dev: the specific NIC device
|
|
*
|
|
* Return 0 - Success, negative - Failure
|
|
**/
|
|
static int create_txqs(struct hinic_dev *nic_dev)
|
|
{
|
|
int err, i, j, num_txqs = hinic_hwdev_num_qps(nic_dev->hwdev);
|
|
struct net_device *netdev = nic_dev->netdev;
|
|
size_t txq_size;
|
|
|
|
if (nic_dev->txqs)
|
|
return -EINVAL;
|
|
|
|
txq_size = num_txqs * sizeof(*nic_dev->txqs);
|
|
nic_dev->txqs = devm_kzalloc(&netdev->dev, txq_size, GFP_KERNEL);
|
|
if (!nic_dev->txqs)
|
|
return -ENOMEM;
|
|
|
|
for (i = 0; i < num_txqs; i++) {
|
|
struct hinic_sq *sq = hinic_hwdev_get_sq(nic_dev->hwdev, i);
|
|
|
|
err = hinic_init_txq(&nic_dev->txqs[i], sq, netdev);
|
|
if (err) {
|
|
netif_err(nic_dev, drv, netdev,
|
|
"Failed to init Txq\n");
|
|
goto err_init_txq;
|
|
}
|
|
}
|
|
|
|
return 0;
|
|
|
|
err_init_txq:
|
|
for (j = 0; j < i; j++)
|
|
hinic_clean_txq(&nic_dev->txqs[j]);
|
|
|
|
devm_kfree(&netdev->dev, nic_dev->txqs);
|
|
return err;
|
|
}
|
|
|
|
/**
|
|
* free_txqs - Free the Logical Tx Queues of specific NIC device
|
|
* @nic_dev: the specific NIC device
|
|
**/
|
|
static void free_txqs(struct hinic_dev *nic_dev)
|
|
{
|
|
int i, num_txqs = hinic_hwdev_num_qps(nic_dev->hwdev);
|
|
struct net_device *netdev = nic_dev->netdev;
|
|
|
|
if (!nic_dev->txqs)
|
|
return;
|
|
|
|
for (i = 0; i < num_txqs; i++)
|
|
hinic_clean_txq(&nic_dev->txqs[i]);
|
|
|
|
devm_kfree(&netdev->dev, nic_dev->txqs);
|
|
nic_dev->txqs = NULL;
|
|
}
|
|
|
|
/**
|
|
* create_txqs - Create the Logical Rx Queues of specific NIC device
|
|
* @nic_dev: the specific NIC device
|
|
*
|
|
* Return 0 - Success, negative - Failure
|
|
**/
|
|
static int create_rxqs(struct hinic_dev *nic_dev)
|
|
{
|
|
int err, i, j, num_rxqs = hinic_hwdev_num_qps(nic_dev->hwdev);
|
|
struct net_device *netdev = nic_dev->netdev;
|
|
size_t rxq_size;
|
|
|
|
if (nic_dev->rxqs)
|
|
return -EINVAL;
|
|
|
|
rxq_size = num_rxqs * sizeof(*nic_dev->rxqs);
|
|
nic_dev->rxqs = devm_kzalloc(&netdev->dev, rxq_size, GFP_KERNEL);
|
|
if (!nic_dev->rxqs)
|
|
return -ENOMEM;
|
|
|
|
for (i = 0; i < num_rxqs; i++) {
|
|
struct hinic_rq *rq = hinic_hwdev_get_rq(nic_dev->hwdev, i);
|
|
|
|
err = hinic_init_rxq(&nic_dev->rxqs[i], rq, netdev);
|
|
if (err) {
|
|
netif_err(nic_dev, drv, netdev,
|
|
"Failed to init rxq\n");
|
|
goto err_init_rxq;
|
|
}
|
|
}
|
|
|
|
return 0;
|
|
|
|
err_init_rxq:
|
|
for (j = 0; j < i; j++)
|
|
hinic_clean_rxq(&nic_dev->rxqs[j]);
|
|
|
|
devm_kfree(&netdev->dev, nic_dev->rxqs);
|
|
return err;
|
|
}
|
|
|
|
/**
|
|
* free_txqs - Free the Logical Rx Queues of specific NIC device
|
|
* @nic_dev: the specific NIC device
|
|
**/
|
|
static void free_rxqs(struct hinic_dev *nic_dev)
|
|
{
|
|
int i, num_rxqs = hinic_hwdev_num_qps(nic_dev->hwdev);
|
|
struct net_device *netdev = nic_dev->netdev;
|
|
|
|
if (!nic_dev->rxqs)
|
|
return;
|
|
|
|
for (i = 0; i < num_rxqs; i++)
|
|
hinic_clean_rxq(&nic_dev->rxqs[i]);
|
|
|
|
devm_kfree(&netdev->dev, nic_dev->rxqs);
|
|
nic_dev->rxqs = NULL;
|
|
}
|
|
|
|
static int hinic_open(struct net_device *netdev)
|
|
{
|
|
struct hinic_dev *nic_dev = netdev_priv(netdev);
|
|
enum hinic_port_link_state link_state;
|
|
int err, ret, num_qps;
|
|
|
|
if (!(nic_dev->flags & HINIC_INTF_UP)) {
|
|
err = hinic_hwdev_ifup(nic_dev->hwdev);
|
|
if (err) {
|
|
netif_err(nic_dev, drv, netdev,
|
|
"Failed - HW interface up\n");
|
|
return err;
|
|
}
|
|
}
|
|
|
|
err = create_txqs(nic_dev);
|
|
if (err) {
|
|
netif_err(nic_dev, drv, netdev,
|
|
"Failed to create Tx queues\n");
|
|
goto err_create_txqs;
|
|
}
|
|
|
|
err = create_rxqs(nic_dev);
|
|
if (err) {
|
|
netif_err(nic_dev, drv, netdev,
|
|
"Failed to create Rx queues\n");
|
|
goto err_create_rxqs;
|
|
}
|
|
|
|
num_qps = hinic_hwdev_num_qps(nic_dev->hwdev);
|
|
netif_set_real_num_tx_queues(netdev, num_qps);
|
|
netif_set_real_num_rx_queues(netdev, num_qps);
|
|
|
|
err = hinic_port_set_state(nic_dev, HINIC_PORT_ENABLE);
|
|
if (err) {
|
|
netif_err(nic_dev, drv, netdev,
|
|
"Failed to set port state\n");
|
|
goto err_port_state;
|
|
}
|
|
|
|
err = hinic_port_set_func_state(nic_dev, HINIC_FUNC_PORT_ENABLE);
|
|
if (err) {
|
|
netif_err(nic_dev, drv, netdev,
|
|
"Failed to set func port state\n");
|
|
goto err_func_port_state;
|
|
}
|
|
|
|
/* Wait up to 3 sec between port enable to link state */
|
|
msleep(3000);
|
|
|
|
down(&nic_dev->mgmt_lock);
|
|
|
|
err = hinic_port_link_state(nic_dev, &link_state);
|
|
if (err) {
|
|
netif_err(nic_dev, drv, netdev, "Failed to get link state\n");
|
|
goto err_port_link;
|
|
}
|
|
|
|
if (link_state == HINIC_LINK_STATE_UP)
|
|
nic_dev->flags |= HINIC_LINK_UP;
|
|
|
|
nic_dev->flags |= HINIC_INTF_UP;
|
|
|
|
if ((nic_dev->flags & (HINIC_LINK_UP | HINIC_INTF_UP)) ==
|
|
(HINIC_LINK_UP | HINIC_INTF_UP)) {
|
|
netif_info(nic_dev, drv, netdev, "link + intf UP\n");
|
|
netif_carrier_on(netdev);
|
|
netif_tx_wake_all_queues(netdev);
|
|
}
|
|
|
|
up(&nic_dev->mgmt_lock);
|
|
|
|
netif_info(nic_dev, drv, netdev, "HINIC_INTF is UP\n");
|
|
return 0;
|
|
|
|
err_port_link:
|
|
up(&nic_dev->mgmt_lock);
|
|
ret = hinic_port_set_func_state(nic_dev, HINIC_FUNC_PORT_DISABLE);
|
|
if (ret)
|
|
netif_warn(nic_dev, drv, netdev,
|
|
"Failed to revert func port state\n");
|
|
|
|
err_func_port_state:
|
|
ret = hinic_port_set_state(nic_dev, HINIC_PORT_DISABLE);
|
|
if (ret)
|
|
netif_warn(nic_dev, drv, netdev,
|
|
"Failed to revert port state\n");
|
|
|
|
err_port_state:
|
|
free_rxqs(nic_dev);
|
|
|
|
err_create_rxqs:
|
|
free_txqs(nic_dev);
|
|
|
|
err_create_txqs:
|
|
if (!(nic_dev->flags & HINIC_INTF_UP))
|
|
hinic_hwdev_ifdown(nic_dev->hwdev);
|
|
return err;
|
|
}
|
|
|
|
static int hinic_close(struct net_device *netdev)
|
|
{
|
|
struct hinic_dev *nic_dev = netdev_priv(netdev);
|
|
unsigned int flags;
|
|
int err;
|
|
|
|
down(&nic_dev->mgmt_lock);
|
|
|
|
flags = nic_dev->flags;
|
|
nic_dev->flags &= ~HINIC_INTF_UP;
|
|
|
|
netif_carrier_off(netdev);
|
|
netif_tx_disable(netdev);
|
|
|
|
update_nic_stats(nic_dev);
|
|
|
|
up(&nic_dev->mgmt_lock);
|
|
|
|
err = hinic_port_set_func_state(nic_dev, HINIC_FUNC_PORT_DISABLE);
|
|
if (err) {
|
|
netif_err(nic_dev, drv, netdev,
|
|
"Failed to set func port state\n");
|
|
nic_dev->flags |= (flags & HINIC_INTF_UP);
|
|
return err;
|
|
}
|
|
|
|
err = hinic_port_set_state(nic_dev, HINIC_PORT_DISABLE);
|
|
if (err) {
|
|
netif_err(nic_dev, drv, netdev, "Failed to set port state\n");
|
|
nic_dev->flags |= (flags & HINIC_INTF_UP);
|
|
return err;
|
|
}
|
|
|
|
free_rxqs(nic_dev);
|
|
free_txqs(nic_dev);
|
|
|
|
if (flags & HINIC_INTF_UP)
|
|
hinic_hwdev_ifdown(nic_dev->hwdev);
|
|
|
|
netif_info(nic_dev, drv, netdev, "HINIC_INTF is DOWN\n");
|
|
return 0;
|
|
}
|
|
|
|
static int hinic_change_mtu(struct net_device *netdev, int new_mtu)
|
|
{
|
|
struct hinic_dev *nic_dev = netdev_priv(netdev);
|
|
int err;
|
|
|
|
netif_info(nic_dev, drv, netdev, "set_mtu = %d\n", new_mtu);
|
|
|
|
err = hinic_port_set_mtu(nic_dev, new_mtu);
|
|
if (err)
|
|
netif_err(nic_dev, drv, netdev, "Failed to set port mtu\n");
|
|
else
|
|
netdev->mtu = new_mtu;
|
|
|
|
return err;
|
|
}
|
|
|
|
/**
|
|
* change_mac_addr - change the main mac address of network device
|
|
* @netdev: network device
|
|
* @addr: mac address to set
|
|
*
|
|
* Return 0 - Success, negative - Failure
|
|
**/
|
|
static int change_mac_addr(struct net_device *netdev, const u8 *addr)
|
|
{
|
|
struct hinic_dev *nic_dev = netdev_priv(netdev);
|
|
u16 vid = 0;
|
|
int err;
|
|
|
|
if (!is_valid_ether_addr(addr))
|
|
return -EADDRNOTAVAIL;
|
|
|
|
netif_info(nic_dev, drv, netdev, "change mac addr = %02x %02x %02x %02x %02x %02x\n",
|
|
addr[0], addr[1], addr[2], addr[3], addr[4], addr[5]);
|
|
|
|
down(&nic_dev->mgmt_lock);
|
|
|
|
do {
|
|
err = hinic_port_del_mac(nic_dev, netdev->dev_addr, vid);
|
|
if (err) {
|
|
netif_err(nic_dev, drv, netdev,
|
|
"Failed to delete mac\n");
|
|
break;
|
|
}
|
|
|
|
err = hinic_port_add_mac(nic_dev, addr, vid);
|
|
if (err) {
|
|
netif_err(nic_dev, drv, netdev, "Failed to add mac\n");
|
|
break;
|
|
}
|
|
|
|
vid = find_next_bit(nic_dev->vlan_bitmap, VLAN_N_VID, vid + 1);
|
|
} while (vid != VLAN_N_VID);
|
|
|
|
up(&nic_dev->mgmt_lock);
|
|
return err;
|
|
}
|
|
|
|
static int hinic_set_mac_addr(struct net_device *netdev, void *addr)
|
|
{
|
|
unsigned char new_mac[ETH_ALEN];
|
|
struct sockaddr *saddr = addr;
|
|
int err;
|
|
|
|
memcpy(new_mac, saddr->sa_data, ETH_ALEN);
|
|
|
|
err = change_mac_addr(netdev, new_mac);
|
|
if (!err)
|
|
memcpy(netdev->dev_addr, new_mac, ETH_ALEN);
|
|
|
|
return err;
|
|
}
|
|
|
|
/**
|
|
* add_mac_addr - add mac address to network device
|
|
* @netdev: network device
|
|
* @addr: mac address to add
|
|
*
|
|
* Return 0 - Success, negative - Failure
|
|
**/
|
|
static int add_mac_addr(struct net_device *netdev, const u8 *addr)
|
|
{
|
|
struct hinic_dev *nic_dev = netdev_priv(netdev);
|
|
u16 vid = 0;
|
|
int err;
|
|
|
|
netif_info(nic_dev, drv, netdev, "set mac addr = %02x %02x %02x %02x %02x %02x\n",
|
|
addr[0], addr[1], addr[2], addr[3], addr[4], addr[5]);
|
|
|
|
down(&nic_dev->mgmt_lock);
|
|
|
|
do {
|
|
err = hinic_port_add_mac(nic_dev, addr, vid);
|
|
if (err) {
|
|
netif_err(nic_dev, drv, netdev, "Failed to add mac\n");
|
|
break;
|
|
}
|
|
|
|
vid = find_next_bit(nic_dev->vlan_bitmap, VLAN_N_VID, vid + 1);
|
|
} while (vid != VLAN_N_VID);
|
|
|
|
up(&nic_dev->mgmt_lock);
|
|
return err;
|
|
}
|
|
|
|
/**
|
|
* remove_mac_addr - remove mac address from network device
|
|
* @netdev: network device
|
|
* @addr: mac address to remove
|
|
*
|
|
* Return 0 - Success, negative - Failure
|
|
**/
|
|
static int remove_mac_addr(struct net_device *netdev, const u8 *addr)
|
|
{
|
|
struct hinic_dev *nic_dev = netdev_priv(netdev);
|
|
u16 vid = 0;
|
|
int err;
|
|
|
|
if (!is_valid_ether_addr(addr))
|
|
return -EADDRNOTAVAIL;
|
|
|
|
netif_info(nic_dev, drv, netdev, "remove mac addr = %02x %02x %02x %02x %02x %02x\n",
|
|
addr[0], addr[1], addr[2], addr[3], addr[4], addr[5]);
|
|
|
|
down(&nic_dev->mgmt_lock);
|
|
|
|
do {
|
|
err = hinic_port_del_mac(nic_dev, addr, vid);
|
|
if (err) {
|
|
netif_err(nic_dev, drv, netdev,
|
|
"Failed to delete mac\n");
|
|
break;
|
|
}
|
|
|
|
vid = find_next_bit(nic_dev->vlan_bitmap, VLAN_N_VID, vid + 1);
|
|
} while (vid != VLAN_N_VID);
|
|
|
|
up(&nic_dev->mgmt_lock);
|
|
return err;
|
|
}
|
|
|
|
static int hinic_vlan_rx_add_vid(struct net_device *netdev,
|
|
__always_unused __be16 proto, u16 vid)
|
|
{
|
|
struct hinic_dev *nic_dev = netdev_priv(netdev);
|
|
int ret, err;
|
|
|
|
netif_info(nic_dev, drv, netdev, "add vid = %d\n", vid);
|
|
|
|
down(&nic_dev->mgmt_lock);
|
|
|
|
err = hinic_port_add_vlan(nic_dev, vid);
|
|
if (err) {
|
|
netif_err(nic_dev, drv, netdev, "Failed to add vlan\n");
|
|
goto err_vlan_add;
|
|
}
|
|
|
|
err = hinic_port_add_mac(nic_dev, netdev->dev_addr, vid);
|
|
if (err) {
|
|
netif_err(nic_dev, drv, netdev, "Failed to set mac\n");
|
|
goto err_add_mac;
|
|
}
|
|
|
|
bitmap_set(nic_dev->vlan_bitmap, vid, 1);
|
|
|
|
up(&nic_dev->mgmt_lock);
|
|
return 0;
|
|
|
|
err_add_mac:
|
|
ret = hinic_port_del_vlan(nic_dev, vid);
|
|
if (ret)
|
|
netif_err(nic_dev, drv, netdev,
|
|
"Failed to revert by removing vlan\n");
|
|
|
|
err_vlan_add:
|
|
up(&nic_dev->mgmt_lock);
|
|
return err;
|
|
}
|
|
|
|
static int hinic_vlan_rx_kill_vid(struct net_device *netdev,
|
|
__always_unused __be16 proto, u16 vid)
|
|
{
|
|
struct hinic_dev *nic_dev = netdev_priv(netdev);
|
|
int err;
|
|
|
|
netif_info(nic_dev, drv, netdev, "remove vid = %d\n", vid);
|
|
|
|
down(&nic_dev->mgmt_lock);
|
|
|
|
err = hinic_port_del_vlan(nic_dev, vid);
|
|
if (err) {
|
|
netif_err(nic_dev, drv, netdev, "Failed to delete vlan\n");
|
|
goto err_del_vlan;
|
|
}
|
|
|
|
bitmap_clear(nic_dev->vlan_bitmap, vid, 1);
|
|
|
|
up(&nic_dev->mgmt_lock);
|
|
return 0;
|
|
|
|
err_del_vlan:
|
|
up(&nic_dev->mgmt_lock);
|
|
return err;
|
|
}
|
|
|
|
static void set_rx_mode(struct work_struct *work)
|
|
{
|
|
struct hinic_rx_mode_work *rx_mode_work = work_to_rx_mode_work(work);
|
|
struct hinic_dev *nic_dev = rx_mode_work_to_nic_dev(rx_mode_work);
|
|
struct netdev_hw_addr *ha;
|
|
|
|
netif_info(nic_dev, drv, nic_dev->netdev, "set rx mode work\n");
|
|
|
|
hinic_port_set_rx_mode(nic_dev, rx_mode_work->rx_mode);
|
|
|
|
__dev_uc_sync(nic_dev->netdev, add_mac_addr, remove_mac_addr);
|
|
__dev_mc_sync(nic_dev->netdev, add_mac_addr, remove_mac_addr);
|
|
|
|
netdev_for_each_mc_addr(ha, nic_dev->netdev)
|
|
add_mac_addr(nic_dev->netdev, ha->addr);
|
|
}
|
|
|
|
static void hinic_set_rx_mode(struct net_device *netdev)
|
|
{
|
|
struct hinic_dev *nic_dev = netdev_priv(netdev);
|
|
struct hinic_rx_mode_work *rx_mode_work;
|
|
u32 rx_mode;
|
|
|
|
rx_mode_work = &nic_dev->rx_mode_work;
|
|
|
|
rx_mode = HINIC_RX_MODE_UC |
|
|
HINIC_RX_MODE_MC |
|
|
HINIC_RX_MODE_BC;
|
|
|
|
if (netdev->flags & IFF_PROMISC)
|
|
rx_mode |= HINIC_RX_MODE_PROMISC;
|
|
else if (netdev->flags & IFF_ALLMULTI)
|
|
rx_mode |= HINIC_RX_MODE_MC_ALL;
|
|
|
|
rx_mode_work->rx_mode = rx_mode;
|
|
|
|
queue_work(nic_dev->workq, &rx_mode_work->work);
|
|
}
|
|
|
|
static void hinic_tx_timeout(struct net_device *netdev)
|
|
{
|
|
struct hinic_dev *nic_dev = netdev_priv(netdev);
|
|
|
|
netif_err(nic_dev, drv, netdev, "Tx timeout\n");
|
|
}
|
|
|
|
static void hinic_get_stats64(struct net_device *netdev,
|
|
struct rtnl_link_stats64 *stats)
|
|
{
|
|
struct hinic_dev *nic_dev = netdev_priv(netdev);
|
|
struct hinic_rxq_stats *nic_rx_stats;
|
|
struct hinic_txq_stats *nic_tx_stats;
|
|
|
|
nic_rx_stats = &nic_dev->rx_stats;
|
|
nic_tx_stats = &nic_dev->tx_stats;
|
|
|
|
down(&nic_dev->mgmt_lock);
|
|
|
|
if (nic_dev->flags & HINIC_INTF_UP)
|
|
update_nic_stats(nic_dev);
|
|
|
|
up(&nic_dev->mgmt_lock);
|
|
|
|
stats->rx_bytes = nic_rx_stats->bytes;
|
|
stats->rx_packets = nic_rx_stats->pkts;
|
|
|
|
stats->tx_bytes = nic_tx_stats->bytes;
|
|
stats->tx_packets = nic_tx_stats->pkts;
|
|
stats->tx_errors = nic_tx_stats->tx_dropped;
|
|
}
|
|
|
|
static const struct net_device_ops hinic_netdev_ops = {
|
|
.ndo_open = hinic_open,
|
|
.ndo_stop = hinic_close,
|
|
.ndo_change_mtu = hinic_change_mtu,
|
|
.ndo_set_mac_address = hinic_set_mac_addr,
|
|
.ndo_validate_addr = eth_validate_addr,
|
|
.ndo_vlan_rx_add_vid = hinic_vlan_rx_add_vid,
|
|
.ndo_vlan_rx_kill_vid = hinic_vlan_rx_kill_vid,
|
|
.ndo_set_rx_mode = hinic_set_rx_mode,
|
|
.ndo_start_xmit = hinic_xmit_frame,
|
|
.ndo_tx_timeout = hinic_tx_timeout,
|
|
.ndo_get_stats64 = hinic_get_stats64,
|
|
};
|
|
|
|
static void netdev_features_init(struct net_device *netdev)
|
|
{
|
|
netdev->hw_features = NETIF_F_SG | NETIF_F_HIGHDMA;
|
|
|
|
netdev->vlan_features = netdev->hw_features;
|
|
|
|
netdev->features = netdev->hw_features | NETIF_F_HW_VLAN_CTAG_FILTER;
|
|
}
|
|
|
|
/**
|
|
* link_status_event_handler - link event handler
|
|
* @handle: nic device for the handler
|
|
* @buf_in: input buffer
|
|
* @in_size: input size
|
|
* @buf_in: output buffer
|
|
* @out_size: returned output size
|
|
*
|
|
* Return 0 - Success, negative - Failure
|
|
**/
|
|
static void link_status_event_handler(void *handle, void *buf_in, u16 in_size,
|
|
void *buf_out, u16 *out_size)
|
|
{
|
|
struct hinic_port_link_status *link_status, *ret_link_status;
|
|
struct hinic_dev *nic_dev = handle;
|
|
|
|
link_status = buf_in;
|
|
|
|
if (link_status->link == HINIC_LINK_STATE_UP) {
|
|
down(&nic_dev->mgmt_lock);
|
|
|
|
nic_dev->flags |= HINIC_LINK_UP;
|
|
|
|
if ((nic_dev->flags & (HINIC_LINK_UP | HINIC_INTF_UP)) ==
|
|
(HINIC_LINK_UP | HINIC_INTF_UP)) {
|
|
netif_carrier_on(nic_dev->netdev);
|
|
netif_tx_wake_all_queues(nic_dev->netdev);
|
|
}
|
|
|
|
up(&nic_dev->mgmt_lock);
|
|
|
|
netif_info(nic_dev, drv, nic_dev->netdev, "HINIC_Link is UP\n");
|
|
} else {
|
|
down(&nic_dev->mgmt_lock);
|
|
|
|
nic_dev->flags &= ~HINIC_LINK_UP;
|
|
|
|
netif_carrier_off(nic_dev->netdev);
|
|
netif_tx_disable(nic_dev->netdev);
|
|
|
|
up(&nic_dev->mgmt_lock);
|
|
|
|
netif_info(nic_dev, drv, nic_dev->netdev, "HINIC_Link is DOWN\n");
|
|
}
|
|
|
|
ret_link_status = buf_out;
|
|
ret_link_status->status = 0;
|
|
|
|
*out_size = sizeof(*ret_link_status);
|
|
}
|
|
|
|
/**
|
|
* nic_dev_init - Initialize the NIC device
|
|
* @pdev: the NIC pci device
|
|
*
|
|
* Return 0 - Success, negative - Failure
|
|
**/
|
|
static int nic_dev_init(struct pci_dev *pdev)
|
|
{
|
|
struct hinic_rx_mode_work *rx_mode_work;
|
|
struct hinic_txq_stats *tx_stats;
|
|
struct hinic_rxq_stats *rx_stats;
|
|
struct hinic_dev *nic_dev;
|
|
struct net_device *netdev;
|
|
struct hinic_hwdev *hwdev;
|
|
int err, num_qps;
|
|
|
|
hwdev = hinic_init_hwdev(pdev);
|
|
if (IS_ERR(hwdev)) {
|
|
dev_err(&pdev->dev, "Failed to initialize HW device\n");
|
|
return PTR_ERR(hwdev);
|
|
}
|
|
|
|
num_qps = hinic_hwdev_num_qps(hwdev);
|
|
if (num_qps <= 0) {
|
|
dev_err(&pdev->dev, "Invalid number of QPS\n");
|
|
err = -EINVAL;
|
|
goto err_num_qps;
|
|
}
|
|
|
|
netdev = alloc_etherdev_mq(sizeof(*nic_dev), num_qps);
|
|
if (!netdev) {
|
|
dev_err(&pdev->dev, "Failed to allocate Ethernet device\n");
|
|
err = -ENOMEM;
|
|
goto err_alloc_etherdev;
|
|
}
|
|
|
|
netdev->netdev_ops = &hinic_netdev_ops;
|
|
netdev->ethtool_ops = &hinic_ethtool_ops;
|
|
netdev->max_mtu = ETH_MAX_MTU;
|
|
|
|
nic_dev = netdev_priv(netdev);
|
|
nic_dev->netdev = netdev;
|
|
nic_dev->hwdev = hwdev;
|
|
nic_dev->msg_enable = MSG_ENABLE_DEFAULT;
|
|
nic_dev->flags = 0;
|
|
nic_dev->txqs = NULL;
|
|
nic_dev->rxqs = NULL;
|
|
nic_dev->tx_weight = tx_weight;
|
|
nic_dev->rx_weight = rx_weight;
|
|
|
|
sema_init(&nic_dev->mgmt_lock, 1);
|
|
|
|
tx_stats = &nic_dev->tx_stats;
|
|
rx_stats = &nic_dev->rx_stats;
|
|
|
|
u64_stats_init(&tx_stats->syncp);
|
|
u64_stats_init(&rx_stats->syncp);
|
|
|
|
nic_dev->vlan_bitmap = devm_kzalloc(&pdev->dev,
|
|
VLAN_BITMAP_SIZE(nic_dev),
|
|
GFP_KERNEL);
|
|
if (!nic_dev->vlan_bitmap) {
|
|
err = -ENOMEM;
|
|
goto err_vlan_bitmap;
|
|
}
|
|
|
|
nic_dev->workq = create_singlethread_workqueue(HINIC_WQ_NAME);
|
|
if (!nic_dev->workq) {
|
|
err = -ENOMEM;
|
|
goto err_workq;
|
|
}
|
|
|
|
pci_set_drvdata(pdev, netdev);
|
|
|
|
err = hinic_port_get_mac(nic_dev, netdev->dev_addr);
|
|
if (err)
|
|
dev_warn(&pdev->dev, "Failed to get mac address\n");
|
|
|
|
err = hinic_port_add_mac(nic_dev, netdev->dev_addr, 0);
|
|
if (err) {
|
|
dev_err(&pdev->dev, "Failed to add mac\n");
|
|
goto err_add_mac;
|
|
}
|
|
|
|
err = hinic_port_set_mtu(nic_dev, netdev->mtu);
|
|
if (err) {
|
|
dev_err(&pdev->dev, "Failed to set mtu\n");
|
|
goto err_set_mtu;
|
|
}
|
|
|
|
rx_mode_work = &nic_dev->rx_mode_work;
|
|
INIT_WORK(&rx_mode_work->work, set_rx_mode);
|
|
|
|
netdev_features_init(netdev);
|
|
|
|
netif_carrier_off(netdev);
|
|
|
|
hinic_hwdev_cb_register(nic_dev->hwdev, HINIC_MGMT_MSG_CMD_LINK_STATUS,
|
|
nic_dev, link_status_event_handler);
|
|
|
|
SET_NETDEV_DEV(netdev, &pdev->dev);
|
|
err = register_netdev(netdev);
|
|
if (err) {
|
|
dev_err(&pdev->dev, "Failed to register netdev\n");
|
|
goto err_reg_netdev;
|
|
}
|
|
|
|
return 0;
|
|
|
|
err_reg_netdev:
|
|
hinic_hwdev_cb_unregister(nic_dev->hwdev,
|
|
HINIC_MGMT_MSG_CMD_LINK_STATUS);
|
|
cancel_work_sync(&rx_mode_work->work);
|
|
|
|
err_set_mtu:
|
|
err_add_mac:
|
|
pci_set_drvdata(pdev, NULL);
|
|
destroy_workqueue(nic_dev->workq);
|
|
|
|
err_workq:
|
|
err_vlan_bitmap:
|
|
free_netdev(netdev);
|
|
|
|
err_alloc_etherdev:
|
|
err_num_qps:
|
|
hinic_free_hwdev(hwdev);
|
|
return err;
|
|
}
|
|
|
|
static int hinic_probe(struct pci_dev *pdev,
|
|
const struct pci_device_id *id)
|
|
{
|
|
int err = pci_enable_device(pdev);
|
|
|
|
if (err) {
|
|
dev_err(&pdev->dev, "Failed to enable PCI device\n");
|
|
return err;
|
|
}
|
|
|
|
err = pci_request_regions(pdev, HINIC_DRV_NAME);
|
|
if (err) {
|
|
dev_err(&pdev->dev, "Failed to request PCI regions\n");
|
|
goto err_pci_regions;
|
|
}
|
|
|
|
pci_set_master(pdev);
|
|
|
|
err = pci_set_dma_mask(pdev, DMA_BIT_MASK(64));
|
|
if (err) {
|
|
dev_warn(&pdev->dev, "Couldn't set 64-bit DMA mask\n");
|
|
err = pci_set_dma_mask(pdev, DMA_BIT_MASK(32));
|
|
if (err) {
|
|
dev_err(&pdev->dev, "Failed to set DMA mask\n");
|
|
goto err_dma_mask;
|
|
}
|
|
}
|
|
|
|
err = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(64));
|
|
if (err) {
|
|
dev_warn(&pdev->dev,
|
|
"Couldn't set 64-bit consistent DMA mask\n");
|
|
err = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32));
|
|
if (err) {
|
|
dev_err(&pdev->dev,
|
|
"Failed to set consistent DMA mask\n");
|
|
goto err_dma_consistent_mask;
|
|
}
|
|
}
|
|
|
|
err = nic_dev_init(pdev);
|
|
if (err) {
|
|
dev_err(&pdev->dev, "Failed to initialize NIC device\n");
|
|
goto err_nic_dev_init;
|
|
}
|
|
|
|
dev_info(&pdev->dev, "HiNIC driver - probed\n");
|
|
return 0;
|
|
|
|
err_nic_dev_init:
|
|
err_dma_consistent_mask:
|
|
err_dma_mask:
|
|
pci_release_regions(pdev);
|
|
|
|
err_pci_regions:
|
|
pci_disable_device(pdev);
|
|
return err;
|
|
}
|
|
|
|
static void hinic_remove(struct pci_dev *pdev)
|
|
{
|
|
struct net_device *netdev = pci_get_drvdata(pdev);
|
|
struct hinic_dev *nic_dev = netdev_priv(netdev);
|
|
struct hinic_rx_mode_work *rx_mode_work;
|
|
|
|
unregister_netdev(netdev);
|
|
|
|
hinic_hwdev_cb_unregister(nic_dev->hwdev,
|
|
HINIC_MGMT_MSG_CMD_LINK_STATUS);
|
|
|
|
rx_mode_work = &nic_dev->rx_mode_work;
|
|
cancel_work_sync(&rx_mode_work->work);
|
|
|
|
pci_set_drvdata(pdev, NULL);
|
|
|
|
destroy_workqueue(nic_dev->workq);
|
|
|
|
hinic_free_hwdev(nic_dev->hwdev);
|
|
|
|
free_netdev(netdev);
|
|
|
|
pci_release_regions(pdev);
|
|
pci_disable_device(pdev);
|
|
|
|
dev_info(&pdev->dev, "HiNIC driver - removed\n");
|
|
}
|
|
|
|
static const struct pci_device_id hinic_pci_table[] = {
|
|
{ PCI_VDEVICE(HUAWEI, HINIC_DEV_ID_QUAD_PORT_25GE), 0},
|
|
{ PCI_VDEVICE(HUAWEI, HINIC_DEV_ID_DUAL_PORT_25GE), 0},
|
|
{ PCI_VDEVICE(HUAWEI, HINIC_DEV_ID_DUAL_PORT_100GE), 0},
|
|
{ 0, 0}
|
|
};
|
|
MODULE_DEVICE_TABLE(pci, hinic_pci_table);
|
|
|
|
static struct pci_driver hinic_driver = {
|
|
.name = HINIC_DRV_NAME,
|
|
.id_table = hinic_pci_table,
|
|
.probe = hinic_probe,
|
|
.remove = hinic_remove,
|
|
};
|
|
|
|
module_pci_driver(hinic_driver);
|