2 * Huawei HiNIC PCI Express Linux driver
3 * Copyright(c) 2017 Huawei Technologies Co., Ltd
5 * This program is free software; you can redistribute it and/or modify it
6 * under the terms and conditions of the GNU General Public License,
7 * version 2, as published by the Free Software Foundation.
9 * This program is distributed in the hope it will be useful, but WITHOUT
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
16 #include <linux/kernel.h>
17 #include <linux/module.h>
18 #include <linux/moduleparam.h>
19 #include <linux/pci.h>
20 #include <linux/device.h>
21 #include <linux/errno.h>
22 #include <linux/types.h>
23 #include <linux/etherdevice.h>
24 #include <linux/netdevice.h>
25 #include <linux/slab.h>
26 #include <linux/if_vlan.h>
27 #include <linux/semaphore.h>
28 #include <linux/workqueue.h>
30 #include <linux/bitops.h>
31 #include <linux/bitmap.h>
32 #include <linux/delay.h>
33 #include <linux/err.h>
35 #include "hinic_hw_qp.h"
36 #include "hinic_hw_dev.h"
37 #include "hinic_port.h"
40 #include "hinic_dev.h"
42 MODULE_AUTHOR("Huawei Technologies CO., Ltd");
43 MODULE_DESCRIPTION("Huawei Intelligent NIC driver");
44 MODULE_LICENSE("GPL");
46 static unsigned int tx_weight = 64;
47 module_param(tx_weight, uint, 0644);
48 MODULE_PARM_DESC(tx_weight, "Number Tx packets for NAPI budget (default=64)");
50 static unsigned int rx_weight = 64;
51 module_param(rx_weight, uint, 0644);
52 MODULE_PARM_DESC(rx_weight, "Number Rx packets for NAPI budget (default=64)");
54 #define HINIC_DEV_ID_QUAD_PORT_25GE 0x1822
55 #define HINIC_DEV_ID_DUAL_PORT_25GE 0x0200
56 #define HINIC_DEV_ID_DUAL_PORT_100GE 0x0201
58 #define HINIC_WQ_NAME "hinic_dev"
60 #define MSG_ENABLE_DEFAULT (NETIF_MSG_DRV | NETIF_MSG_PROBE | \
62 NETIF_MSG_TX_ERR | NETIF_MSG_RX_ERR)
64 #define VLAN_BITMAP_SIZE(nic_dev) (ALIGN(VLAN_N_VID, 8) / 8)
66 #define work_to_rx_mode_work(work) \
67 container_of(work, struct hinic_rx_mode_work, work)
69 #define rx_mode_work_to_nic_dev(rx_mode_work) \
70 container_of(rx_mode_work, struct hinic_dev, rx_mode_work)
72 static int change_mac_addr(struct net_device *netdev, const u8 *addr);
74 static void set_link_speed(struct ethtool_link_ksettings *link_ksettings,
75 enum hinic_speed speed)
78 case HINIC_SPEED_10MB_LINK:
79 link_ksettings->base.speed = SPEED_10;
82 case HINIC_SPEED_100MB_LINK:
83 link_ksettings->base.speed = SPEED_100;
86 case HINIC_SPEED_1000MB_LINK:
87 link_ksettings->base.speed = SPEED_1000;
90 case HINIC_SPEED_10GB_LINK:
91 link_ksettings->base.speed = SPEED_10000;
94 case HINIC_SPEED_25GB_LINK:
95 link_ksettings->base.speed = SPEED_25000;
98 case HINIC_SPEED_40GB_LINK:
99 link_ksettings->base.speed = SPEED_40000;
102 case HINIC_SPEED_100GB_LINK:
103 link_ksettings->base.speed = SPEED_100000;
107 link_ksettings->base.speed = SPEED_UNKNOWN;
112 static int hinic_get_link_ksettings(struct net_device *netdev,
113 struct ethtool_link_ksettings
116 struct hinic_dev *nic_dev = netdev_priv(netdev);
117 enum hinic_port_link_state link_state;
118 struct hinic_port_cap port_cap;
121 ethtool_link_ksettings_zero_link_mode(link_ksettings, advertising);
122 ethtool_link_ksettings_add_link_mode(link_ksettings, supported,
125 link_ksettings->base.speed = SPEED_UNKNOWN;
126 link_ksettings->base.autoneg = AUTONEG_DISABLE;
127 link_ksettings->base.duplex = DUPLEX_UNKNOWN;
129 err = hinic_port_get_cap(nic_dev, &port_cap);
131 netif_err(nic_dev, drv, netdev,
132 "Failed to get port capabilities\n");
136 err = hinic_port_link_state(nic_dev, &link_state);
138 netif_err(nic_dev, drv, netdev,
139 "Failed to get port link state\n");
143 if (link_state != HINIC_LINK_STATE_UP) {
144 netif_info(nic_dev, drv, netdev, "No link\n");
148 set_link_speed(link_ksettings, port_cap.speed);
150 if (!!(port_cap.autoneg_cap & HINIC_AUTONEG_SUPPORTED))
151 ethtool_link_ksettings_add_link_mode(link_ksettings,
152 advertising, Autoneg);
154 if (port_cap.autoneg_state == HINIC_AUTONEG_ACTIVE)
155 link_ksettings->base.autoneg = AUTONEG_ENABLE;
157 link_ksettings->base.duplex = (port_cap.duplex == HINIC_DUPLEX_FULL) ?
158 DUPLEX_FULL : DUPLEX_HALF;
162 static void hinic_get_drvinfo(struct net_device *netdev,
163 struct ethtool_drvinfo *info)
165 struct hinic_dev *nic_dev = netdev_priv(netdev);
166 struct hinic_hwdev *hwdev = nic_dev->hwdev;
167 struct hinic_hwif *hwif = hwdev->hwif;
169 strlcpy(info->driver, HINIC_DRV_NAME, sizeof(info->driver));
170 strlcpy(info->bus_info, pci_name(hwif->pdev), sizeof(info->bus_info));
173 static void hinic_get_ringparam(struct net_device *netdev,
174 struct ethtool_ringparam *ring)
176 ring->rx_max_pending = HINIC_RQ_DEPTH;
177 ring->tx_max_pending = HINIC_SQ_DEPTH;
178 ring->rx_pending = HINIC_RQ_DEPTH;
179 ring->tx_pending = HINIC_SQ_DEPTH;
182 static void hinic_get_channels(struct net_device *netdev,
183 struct ethtool_channels *channels)
185 struct hinic_dev *nic_dev = netdev_priv(netdev);
186 struct hinic_hwdev *hwdev = nic_dev->hwdev;
188 channels->max_rx = hwdev->nic_cap.max_qps;
189 channels->max_tx = hwdev->nic_cap.max_qps;
190 channels->max_other = 0;
191 channels->max_combined = 0;
192 channels->rx_count = hinic_hwdev_num_qps(hwdev);
193 channels->tx_count = hinic_hwdev_num_qps(hwdev);
194 channels->other_count = 0;
195 channels->combined_count = 0;
198 static const struct ethtool_ops hinic_ethtool_ops = {
199 .get_link_ksettings = hinic_get_link_ksettings,
200 .get_drvinfo = hinic_get_drvinfo,
201 .get_link = ethtool_op_get_link,
202 .get_ringparam = hinic_get_ringparam,
203 .get_channels = hinic_get_channels,
206 static void update_rx_stats(struct hinic_dev *nic_dev, struct hinic_rxq *rxq)
208 struct hinic_rxq_stats *nic_rx_stats = &nic_dev->rx_stats;
209 struct hinic_rxq_stats rx_stats;
211 u64_stats_init(&rx_stats.syncp);
213 hinic_rxq_get_stats(rxq, &rx_stats);
215 u64_stats_update_begin(&nic_rx_stats->syncp);
216 nic_rx_stats->bytes += rx_stats.bytes;
217 nic_rx_stats->pkts += rx_stats.pkts;
218 u64_stats_update_end(&nic_rx_stats->syncp);
220 hinic_rxq_clean_stats(rxq);
223 static void update_tx_stats(struct hinic_dev *nic_dev, struct hinic_txq *txq)
225 struct hinic_txq_stats *nic_tx_stats = &nic_dev->tx_stats;
226 struct hinic_txq_stats tx_stats;
228 u64_stats_init(&tx_stats.syncp);
230 hinic_txq_get_stats(txq, &tx_stats);
232 u64_stats_update_begin(&nic_tx_stats->syncp);
233 nic_tx_stats->bytes += tx_stats.bytes;
234 nic_tx_stats->pkts += tx_stats.pkts;
235 nic_tx_stats->tx_busy += tx_stats.tx_busy;
236 nic_tx_stats->tx_wake += tx_stats.tx_wake;
237 nic_tx_stats->tx_dropped += tx_stats.tx_dropped;
238 u64_stats_update_end(&nic_tx_stats->syncp);
240 hinic_txq_clean_stats(txq);
243 static void update_nic_stats(struct hinic_dev *nic_dev)
245 int i, num_qps = hinic_hwdev_num_qps(nic_dev->hwdev);
247 for (i = 0; i < num_qps; i++)
248 update_rx_stats(nic_dev, &nic_dev->rxqs[i]);
250 for (i = 0; i < num_qps; i++)
251 update_tx_stats(nic_dev, &nic_dev->txqs[i]);
255 * create_txqs - Create the Logical Tx Queues of specific NIC device
256 * @nic_dev: the specific NIC device
258 * Return 0 - Success, negative - Failure
260 static int create_txqs(struct hinic_dev *nic_dev)
262 int err, i, j, num_txqs = hinic_hwdev_num_qps(nic_dev->hwdev);
263 struct net_device *netdev = nic_dev->netdev;
269 txq_size = num_txqs * sizeof(*nic_dev->txqs);
270 nic_dev->txqs = devm_kzalloc(&netdev->dev, txq_size, GFP_KERNEL);
274 for (i = 0; i < num_txqs; i++) {
275 struct hinic_sq *sq = hinic_hwdev_get_sq(nic_dev->hwdev, i);
277 err = hinic_init_txq(&nic_dev->txqs[i], sq, netdev);
279 netif_err(nic_dev, drv, netdev,
280 "Failed to init Txq\n");
288 for (j = 0; j < i; j++)
289 hinic_clean_txq(&nic_dev->txqs[j]);
291 devm_kfree(&netdev->dev, nic_dev->txqs);
296 * free_txqs - Free the Logical Tx Queues of specific NIC device
297 * @nic_dev: the specific NIC device
299 static void free_txqs(struct hinic_dev *nic_dev)
301 int i, num_txqs = hinic_hwdev_num_qps(nic_dev->hwdev);
302 struct net_device *netdev = nic_dev->netdev;
307 for (i = 0; i < num_txqs; i++)
308 hinic_clean_txq(&nic_dev->txqs[i]);
310 devm_kfree(&netdev->dev, nic_dev->txqs);
311 nic_dev->txqs = NULL;
315 * create_txqs - Create the Logical Rx Queues of specific NIC device
316 * @nic_dev: the specific NIC device
318 * Return 0 - Success, negative - Failure
320 static int create_rxqs(struct hinic_dev *nic_dev)
322 int err, i, j, num_rxqs = hinic_hwdev_num_qps(nic_dev->hwdev);
323 struct net_device *netdev = nic_dev->netdev;
329 rxq_size = num_rxqs * sizeof(*nic_dev->rxqs);
330 nic_dev->rxqs = devm_kzalloc(&netdev->dev, rxq_size, GFP_KERNEL);
334 for (i = 0; i < num_rxqs; i++) {
335 struct hinic_rq *rq = hinic_hwdev_get_rq(nic_dev->hwdev, i);
337 err = hinic_init_rxq(&nic_dev->rxqs[i], rq, netdev);
339 netif_err(nic_dev, drv, netdev,
340 "Failed to init rxq\n");
348 for (j = 0; j < i; j++)
349 hinic_clean_rxq(&nic_dev->rxqs[j]);
351 devm_kfree(&netdev->dev, nic_dev->rxqs);
356 * free_txqs - Free the Logical Rx Queues of specific NIC device
357 * @nic_dev: the specific NIC device
359 static void free_rxqs(struct hinic_dev *nic_dev)
361 int i, num_rxqs = hinic_hwdev_num_qps(nic_dev->hwdev);
362 struct net_device *netdev = nic_dev->netdev;
367 for (i = 0; i < num_rxqs; i++)
368 hinic_clean_rxq(&nic_dev->rxqs[i]);
370 devm_kfree(&netdev->dev, nic_dev->rxqs);
371 nic_dev->rxqs = NULL;
374 static int hinic_open(struct net_device *netdev)
376 struct hinic_dev *nic_dev = netdev_priv(netdev);
377 enum hinic_port_link_state link_state;
378 int err, ret, num_qps;
380 if (!(nic_dev->flags & HINIC_INTF_UP)) {
381 err = hinic_hwdev_ifup(nic_dev->hwdev);
383 netif_err(nic_dev, drv, netdev,
384 "Failed - HW interface up\n");
389 err = create_txqs(nic_dev);
391 netif_err(nic_dev, drv, netdev,
392 "Failed to create Tx queues\n");
393 goto err_create_txqs;
396 err = create_rxqs(nic_dev);
398 netif_err(nic_dev, drv, netdev,
399 "Failed to create Rx queues\n");
400 goto err_create_rxqs;
403 num_qps = hinic_hwdev_num_qps(nic_dev->hwdev);
404 netif_set_real_num_tx_queues(netdev, num_qps);
405 netif_set_real_num_rx_queues(netdev, num_qps);
407 err = hinic_port_set_state(nic_dev, HINIC_PORT_ENABLE);
409 netif_err(nic_dev, drv, netdev,
410 "Failed to set port state\n");
414 err = hinic_port_set_func_state(nic_dev, HINIC_FUNC_PORT_ENABLE);
416 netif_err(nic_dev, drv, netdev,
417 "Failed to set func port state\n");
418 goto err_func_port_state;
421 /* Wait up to 3 sec between port enable to link state */
424 down(&nic_dev->mgmt_lock);
426 err = hinic_port_link_state(nic_dev, &link_state);
428 netif_err(nic_dev, drv, netdev, "Failed to get link state\n");
432 if (link_state == HINIC_LINK_STATE_UP)
433 nic_dev->flags |= HINIC_LINK_UP;
435 nic_dev->flags |= HINIC_INTF_UP;
437 if ((nic_dev->flags & (HINIC_LINK_UP | HINIC_INTF_UP)) ==
438 (HINIC_LINK_UP | HINIC_INTF_UP)) {
439 netif_info(nic_dev, drv, netdev, "link + intf UP\n");
440 netif_carrier_on(netdev);
441 netif_tx_wake_all_queues(netdev);
444 up(&nic_dev->mgmt_lock);
446 netif_info(nic_dev, drv, netdev, "HINIC_INTF is UP\n");
450 up(&nic_dev->mgmt_lock);
451 ret = hinic_port_set_func_state(nic_dev, HINIC_FUNC_PORT_DISABLE);
453 netif_warn(nic_dev, drv, netdev,
454 "Failed to revert func port state\n");
457 ret = hinic_port_set_state(nic_dev, HINIC_PORT_DISABLE);
459 netif_warn(nic_dev, drv, netdev,
460 "Failed to revert port state\n");
469 if (!(nic_dev->flags & HINIC_INTF_UP))
470 hinic_hwdev_ifdown(nic_dev->hwdev);
474 static int hinic_close(struct net_device *netdev)
476 struct hinic_dev *nic_dev = netdev_priv(netdev);
480 down(&nic_dev->mgmt_lock);
482 flags = nic_dev->flags;
483 nic_dev->flags &= ~HINIC_INTF_UP;
485 netif_carrier_off(netdev);
486 netif_tx_disable(netdev);
488 update_nic_stats(nic_dev);
490 up(&nic_dev->mgmt_lock);
492 err = hinic_port_set_func_state(nic_dev, HINIC_FUNC_PORT_DISABLE);
494 netif_err(nic_dev, drv, netdev,
495 "Failed to set func port state\n");
496 nic_dev->flags |= (flags & HINIC_INTF_UP);
500 err = hinic_port_set_state(nic_dev, HINIC_PORT_DISABLE);
502 netif_err(nic_dev, drv, netdev, "Failed to set port state\n");
503 nic_dev->flags |= (flags & HINIC_INTF_UP);
510 if (flags & HINIC_INTF_UP)
511 hinic_hwdev_ifdown(nic_dev->hwdev);
513 netif_info(nic_dev, drv, netdev, "HINIC_INTF is DOWN\n");
517 static int hinic_change_mtu(struct net_device *netdev, int new_mtu)
519 struct hinic_dev *nic_dev = netdev_priv(netdev);
522 netif_info(nic_dev, drv, netdev, "set_mtu = %d\n", new_mtu);
524 err = hinic_port_set_mtu(nic_dev, new_mtu);
526 netif_err(nic_dev, drv, netdev, "Failed to set port mtu\n");
528 netdev->mtu = new_mtu;
534 * change_mac_addr - change the main mac address of network device
535 * @netdev: network device
536 * @addr: mac address to set
538 * Return 0 - Success, negative - Failure
540 static int change_mac_addr(struct net_device *netdev, const u8 *addr)
542 struct hinic_dev *nic_dev = netdev_priv(netdev);
546 if (!is_valid_ether_addr(addr))
547 return -EADDRNOTAVAIL;
549 netif_info(nic_dev, drv, netdev, "change mac addr = %02x %02x %02x %02x %02x %02x\n",
550 addr[0], addr[1], addr[2], addr[3], addr[4], addr[5]);
552 down(&nic_dev->mgmt_lock);
555 err = hinic_port_del_mac(nic_dev, netdev->dev_addr, vid);
557 netif_err(nic_dev, drv, netdev,
558 "Failed to delete mac\n");
562 err = hinic_port_add_mac(nic_dev, addr, vid);
564 netif_err(nic_dev, drv, netdev, "Failed to add mac\n");
568 vid = find_next_bit(nic_dev->vlan_bitmap, VLAN_N_VID, vid + 1);
569 } while (vid != VLAN_N_VID);
571 up(&nic_dev->mgmt_lock);
575 static int hinic_set_mac_addr(struct net_device *netdev, void *addr)
577 unsigned char new_mac[ETH_ALEN];
578 struct sockaddr *saddr = addr;
581 memcpy(new_mac, saddr->sa_data, ETH_ALEN);
583 err = change_mac_addr(netdev, new_mac);
585 memcpy(netdev->dev_addr, new_mac, ETH_ALEN);
591 * add_mac_addr - add mac address to network device
592 * @netdev: network device
593 * @addr: mac address to add
595 * Return 0 - Success, negative - Failure
597 static int add_mac_addr(struct net_device *netdev, const u8 *addr)
599 struct hinic_dev *nic_dev = netdev_priv(netdev);
603 if (!is_valid_ether_addr(addr))
604 return -EADDRNOTAVAIL;
606 netif_info(nic_dev, drv, netdev, "set mac addr = %02x %02x %02x %02x %02x %02x\n",
607 addr[0], addr[1], addr[2], addr[3], addr[4], addr[5]);
609 down(&nic_dev->mgmt_lock);
612 err = hinic_port_add_mac(nic_dev, addr, vid);
614 netif_err(nic_dev, drv, netdev, "Failed to add mac\n");
618 vid = find_next_bit(nic_dev->vlan_bitmap, VLAN_N_VID, vid + 1);
619 } while (vid != VLAN_N_VID);
621 up(&nic_dev->mgmt_lock);
626 * remove_mac_addr - remove mac address from network device
627 * @netdev: network device
628 * @addr: mac address to remove
630 * Return 0 - Success, negative - Failure
632 static int remove_mac_addr(struct net_device *netdev, const u8 *addr)
634 struct hinic_dev *nic_dev = netdev_priv(netdev);
638 if (!is_valid_ether_addr(addr))
639 return -EADDRNOTAVAIL;
641 netif_info(nic_dev, drv, netdev, "remove mac addr = %02x %02x %02x %02x %02x %02x\n",
642 addr[0], addr[1], addr[2], addr[3], addr[4], addr[5]);
644 down(&nic_dev->mgmt_lock);
647 err = hinic_port_del_mac(nic_dev, addr, vid);
649 netif_err(nic_dev, drv, netdev,
650 "Failed to delete mac\n");
654 vid = find_next_bit(nic_dev->vlan_bitmap, VLAN_N_VID, vid + 1);
655 } while (vid != VLAN_N_VID);
657 up(&nic_dev->mgmt_lock);
661 static int hinic_vlan_rx_add_vid(struct net_device *netdev,
662 __always_unused __be16 proto, u16 vid)
664 struct hinic_dev *nic_dev = netdev_priv(netdev);
667 netif_info(nic_dev, drv, netdev, "add vid = %d\n", vid);
669 down(&nic_dev->mgmt_lock);
671 err = hinic_port_add_vlan(nic_dev, vid);
673 netif_err(nic_dev, drv, netdev, "Failed to add vlan\n");
677 err = hinic_port_add_mac(nic_dev, netdev->dev_addr, vid);
679 netif_err(nic_dev, drv, netdev, "Failed to set mac\n");
683 bitmap_set(nic_dev->vlan_bitmap, vid, 1);
685 up(&nic_dev->mgmt_lock);
689 ret = hinic_port_del_vlan(nic_dev, vid);
691 netif_err(nic_dev, drv, netdev,
692 "Failed to revert by removing vlan\n");
695 up(&nic_dev->mgmt_lock);
699 static int hinic_vlan_rx_kill_vid(struct net_device *netdev,
700 __always_unused __be16 proto, u16 vid)
702 struct hinic_dev *nic_dev = netdev_priv(netdev);
705 netif_info(nic_dev, drv, netdev, "remove vid = %d\n", vid);
707 down(&nic_dev->mgmt_lock);
709 err = hinic_port_del_vlan(nic_dev, vid);
711 netif_err(nic_dev, drv, netdev, "Failed to delete vlan\n");
715 bitmap_clear(nic_dev->vlan_bitmap, vid, 1);
717 up(&nic_dev->mgmt_lock);
721 up(&nic_dev->mgmt_lock);
725 static void set_rx_mode(struct work_struct *work)
727 struct hinic_rx_mode_work *rx_mode_work = work_to_rx_mode_work(work);
728 struct hinic_dev *nic_dev = rx_mode_work_to_nic_dev(rx_mode_work);
730 netif_info(nic_dev, drv, nic_dev->netdev, "set rx mode work\n");
732 hinic_port_set_rx_mode(nic_dev, rx_mode_work->rx_mode);
734 __dev_uc_sync(nic_dev->netdev, add_mac_addr, remove_mac_addr);
735 __dev_mc_sync(nic_dev->netdev, add_mac_addr, remove_mac_addr);
738 static void hinic_set_rx_mode(struct net_device *netdev)
740 struct hinic_dev *nic_dev = netdev_priv(netdev);
741 struct hinic_rx_mode_work *rx_mode_work;
744 rx_mode_work = &nic_dev->rx_mode_work;
746 rx_mode = HINIC_RX_MODE_UC |
750 if (netdev->flags & IFF_PROMISC)
751 rx_mode |= HINIC_RX_MODE_PROMISC;
752 else if (netdev->flags & IFF_ALLMULTI)
753 rx_mode |= HINIC_RX_MODE_MC_ALL;
755 rx_mode_work->rx_mode = rx_mode;
757 queue_work(nic_dev->workq, &rx_mode_work->work);
760 static void hinic_tx_timeout(struct net_device *netdev)
762 struct hinic_dev *nic_dev = netdev_priv(netdev);
764 netif_err(nic_dev, drv, netdev, "Tx timeout\n");
767 static void hinic_get_stats64(struct net_device *netdev,
768 struct rtnl_link_stats64 *stats)
770 struct hinic_dev *nic_dev = netdev_priv(netdev);
771 struct hinic_rxq_stats *nic_rx_stats;
772 struct hinic_txq_stats *nic_tx_stats;
774 nic_rx_stats = &nic_dev->rx_stats;
775 nic_tx_stats = &nic_dev->tx_stats;
777 down(&nic_dev->mgmt_lock);
779 if (nic_dev->flags & HINIC_INTF_UP)
780 update_nic_stats(nic_dev);
782 up(&nic_dev->mgmt_lock);
784 stats->rx_bytes = nic_rx_stats->bytes;
785 stats->rx_packets = nic_rx_stats->pkts;
787 stats->tx_bytes = nic_tx_stats->bytes;
788 stats->tx_packets = nic_tx_stats->pkts;
789 stats->tx_errors = nic_tx_stats->tx_dropped;
792 static const struct net_device_ops hinic_netdev_ops = {
793 .ndo_open = hinic_open,
794 .ndo_stop = hinic_close,
795 .ndo_change_mtu = hinic_change_mtu,
796 .ndo_set_mac_address = hinic_set_mac_addr,
797 .ndo_validate_addr = eth_validate_addr,
798 .ndo_vlan_rx_add_vid = hinic_vlan_rx_add_vid,
799 .ndo_vlan_rx_kill_vid = hinic_vlan_rx_kill_vid,
800 .ndo_set_rx_mode = hinic_set_rx_mode,
801 .ndo_start_xmit = hinic_xmit_frame,
802 .ndo_tx_timeout = hinic_tx_timeout,
803 .ndo_get_stats64 = hinic_get_stats64,
806 static void netdev_features_init(struct net_device *netdev)
808 netdev->hw_features = NETIF_F_SG | NETIF_F_HIGHDMA | NETIF_F_IP_CSUM |
809 NETIF_F_IPV6_CSUM | NETIF_F_TSO | NETIF_F_TSO6;
811 netdev->vlan_features = netdev->hw_features;
813 netdev->features = netdev->hw_features | NETIF_F_HW_VLAN_CTAG_FILTER;
817 * link_status_event_handler - link event handler
818 * @handle: nic device for the handler
819 * @buf_in: input buffer
820 * @in_size: input size
821 * @buf_in: output buffer
822 * @out_size: returned output size
824 * Return 0 - Success, negative - Failure
826 static void link_status_event_handler(void *handle, void *buf_in, u16 in_size,
827 void *buf_out, u16 *out_size)
829 struct hinic_port_link_status *link_status, *ret_link_status;
830 struct hinic_dev *nic_dev = handle;
832 link_status = buf_in;
834 if (link_status->link == HINIC_LINK_STATE_UP) {
835 down(&nic_dev->mgmt_lock);
837 nic_dev->flags |= HINIC_LINK_UP;
839 if ((nic_dev->flags & (HINIC_LINK_UP | HINIC_INTF_UP)) ==
840 (HINIC_LINK_UP | HINIC_INTF_UP)) {
841 netif_carrier_on(nic_dev->netdev);
842 netif_tx_wake_all_queues(nic_dev->netdev);
845 up(&nic_dev->mgmt_lock);
847 netif_info(nic_dev, drv, nic_dev->netdev, "HINIC_Link is UP\n");
849 down(&nic_dev->mgmt_lock);
851 nic_dev->flags &= ~HINIC_LINK_UP;
853 netif_carrier_off(nic_dev->netdev);
854 netif_tx_disable(nic_dev->netdev);
856 up(&nic_dev->mgmt_lock);
858 netif_info(nic_dev, drv, nic_dev->netdev, "HINIC_Link is DOWN\n");
861 ret_link_status = buf_out;
862 ret_link_status->status = 0;
864 *out_size = sizeof(*ret_link_status);
867 static int set_features(struct hinic_dev *nic_dev,
868 netdev_features_t pre_features,
869 netdev_features_t features, bool force_change)
871 netdev_features_t changed = force_change ? ~0 : pre_features ^ features;
874 if (changed & NETIF_F_TSO)
875 err = hinic_port_set_tso(nic_dev, (features & NETIF_F_TSO) ?
876 HINIC_TSO_ENABLE : HINIC_TSO_DISABLE);
882 * nic_dev_init - Initialize the NIC device
883 * @pdev: the NIC pci device
885 * Return 0 - Success, negative - Failure
887 static int nic_dev_init(struct pci_dev *pdev)
889 struct hinic_rx_mode_work *rx_mode_work;
890 struct hinic_txq_stats *tx_stats;
891 struct hinic_rxq_stats *rx_stats;
892 struct hinic_dev *nic_dev;
893 struct net_device *netdev;
894 struct hinic_hwdev *hwdev;
897 hwdev = hinic_init_hwdev(pdev);
899 dev_err(&pdev->dev, "Failed to initialize HW device\n");
900 return PTR_ERR(hwdev);
903 num_qps = hinic_hwdev_num_qps(hwdev);
905 dev_err(&pdev->dev, "Invalid number of QPS\n");
910 netdev = alloc_etherdev_mq(sizeof(*nic_dev), num_qps);
912 dev_err(&pdev->dev, "Failed to allocate Ethernet device\n");
914 goto err_alloc_etherdev;
917 netdev->netdev_ops = &hinic_netdev_ops;
918 netdev->ethtool_ops = &hinic_ethtool_ops;
919 netdev->max_mtu = ETH_MAX_MTU;
921 nic_dev = netdev_priv(netdev);
922 nic_dev->netdev = netdev;
923 nic_dev->hwdev = hwdev;
924 nic_dev->msg_enable = MSG_ENABLE_DEFAULT;
926 nic_dev->txqs = NULL;
927 nic_dev->rxqs = NULL;
928 nic_dev->tx_weight = tx_weight;
929 nic_dev->rx_weight = rx_weight;
931 sema_init(&nic_dev->mgmt_lock, 1);
933 tx_stats = &nic_dev->tx_stats;
934 rx_stats = &nic_dev->rx_stats;
936 u64_stats_init(&tx_stats->syncp);
937 u64_stats_init(&rx_stats->syncp);
939 nic_dev->vlan_bitmap = devm_kzalloc(&pdev->dev,
940 VLAN_BITMAP_SIZE(nic_dev),
942 if (!nic_dev->vlan_bitmap) {
944 goto err_vlan_bitmap;
947 nic_dev->workq = create_singlethread_workqueue(HINIC_WQ_NAME);
948 if (!nic_dev->workq) {
953 pci_set_drvdata(pdev, netdev);
955 err = hinic_port_get_mac(nic_dev, netdev->dev_addr);
957 dev_warn(&pdev->dev, "Failed to get mac address\n");
959 err = hinic_port_add_mac(nic_dev, netdev->dev_addr, 0);
961 dev_err(&pdev->dev, "Failed to add mac\n");
965 err = hinic_port_set_mtu(nic_dev, netdev->mtu);
967 dev_err(&pdev->dev, "Failed to set mtu\n");
971 rx_mode_work = &nic_dev->rx_mode_work;
972 INIT_WORK(&rx_mode_work->work, set_rx_mode);
974 netdev_features_init(netdev);
976 netif_carrier_off(netdev);
978 hinic_hwdev_cb_register(nic_dev->hwdev, HINIC_MGMT_MSG_CMD_LINK_STATUS,
979 nic_dev, link_status_event_handler);
981 err = set_features(nic_dev, 0, nic_dev->netdev->features, true);
983 goto err_set_features;
985 SET_NETDEV_DEV(netdev, &pdev->dev);
987 err = register_netdev(netdev);
989 dev_err(&pdev->dev, "Failed to register netdev\n");
997 hinic_hwdev_cb_unregister(nic_dev->hwdev,
998 HINIC_MGMT_MSG_CMD_LINK_STATUS);
999 cancel_work_sync(&rx_mode_work->work);
1003 pci_set_drvdata(pdev, NULL);
1004 destroy_workqueue(nic_dev->workq);
1008 free_netdev(netdev);
1012 hinic_free_hwdev(hwdev);
1016 static int hinic_probe(struct pci_dev *pdev,
1017 const struct pci_device_id *id)
1019 int err = pci_enable_device(pdev);
1022 dev_err(&pdev->dev, "Failed to enable PCI device\n");
1026 err = pci_request_regions(pdev, HINIC_DRV_NAME);
1028 dev_err(&pdev->dev, "Failed to request PCI regions\n");
1029 goto err_pci_regions;
1032 pci_set_master(pdev);
1034 err = pci_set_dma_mask(pdev, DMA_BIT_MASK(64));
1036 dev_warn(&pdev->dev, "Couldn't set 64-bit DMA mask\n");
1037 err = pci_set_dma_mask(pdev, DMA_BIT_MASK(32));
1039 dev_err(&pdev->dev, "Failed to set DMA mask\n");
1044 err = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(64));
1046 dev_warn(&pdev->dev,
1047 "Couldn't set 64-bit consistent DMA mask\n");
1048 err = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32));
1051 "Failed to set consistent DMA mask\n");
1052 goto err_dma_consistent_mask;
1056 err = nic_dev_init(pdev);
1058 dev_err(&pdev->dev, "Failed to initialize NIC device\n");
1059 goto err_nic_dev_init;
1062 dev_info(&pdev->dev, "HiNIC driver - probed\n");
1066 err_dma_consistent_mask:
1068 pci_release_regions(pdev);
1071 pci_disable_device(pdev);
1075 static void hinic_remove(struct pci_dev *pdev)
1077 struct net_device *netdev = pci_get_drvdata(pdev);
1078 struct hinic_dev *nic_dev = netdev_priv(netdev);
1079 struct hinic_rx_mode_work *rx_mode_work;
1081 unregister_netdev(netdev);
1083 hinic_hwdev_cb_unregister(nic_dev->hwdev,
1084 HINIC_MGMT_MSG_CMD_LINK_STATUS);
1086 rx_mode_work = &nic_dev->rx_mode_work;
1087 cancel_work_sync(&rx_mode_work->work);
1089 pci_set_drvdata(pdev, NULL);
1091 destroy_workqueue(nic_dev->workq);
1093 hinic_free_hwdev(nic_dev->hwdev);
1095 free_netdev(netdev);
1097 pci_release_regions(pdev);
1098 pci_disable_device(pdev);
1100 dev_info(&pdev->dev, "HiNIC driver - removed\n");
1103 static const struct pci_device_id hinic_pci_table[] = {
1104 { PCI_VDEVICE(HUAWEI, HINIC_DEV_ID_QUAD_PORT_25GE), 0},
1105 { PCI_VDEVICE(HUAWEI, HINIC_DEV_ID_DUAL_PORT_25GE), 0},
1106 { PCI_VDEVICE(HUAWEI, HINIC_DEV_ID_DUAL_PORT_100GE), 0},
1109 MODULE_DEVICE_TABLE(pci, hinic_pci_table);
1111 static struct pci_driver hinic_driver = {
1112 .name = HINIC_DRV_NAME,
1113 .id_table = hinic_pci_table,
1114 .probe = hinic_probe,
1115 .remove = hinic_remove,
1118 module_pci_driver(hinic_driver);