1 /* QLogic qede NIC Driver
2 * Copyright (c) 2015-2017 QLogic Corporation
4 * This software is available to you under a choice of one of two
5 * licenses. You may choose to be licensed under the terms of the GNU
6 * General Public License (GPL) Version 2, available from the file
7 * COPYING in the main directory of this source tree, or the
8 * OpenIB.org BSD license below:
10 * Redistribution and use in source and binary forms, with or
11 * without modification, are permitted provided that the following
14 * - Redistributions of source code must retain the above
15 * copyright notice, this list of conditions and the following
18 * - Redistributions in binary form must reproduce the above
19 * copyright notice, this list of conditions and the following
20 * disclaimer in the documentation and /or other materials
21 * provided with the distribution.
23 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
24 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
25 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
26 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
27 * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
28 * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
29 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
32 #include <linux/crash_dump.h>
33 #include <linux/module.h>
34 #include <linux/pci.h>
35 #include <linux/version.h>
36 #include <linux/device.h>
37 #include <linux/netdevice.h>
38 #include <linux/etherdevice.h>
39 #include <linux/skbuff.h>
40 #include <linux/errno.h>
41 #include <linux/list.h>
42 #include <linux/string.h>
43 #include <linux/dma-mapping.h>
44 #include <linux/interrupt.h>
45 #include <asm/byteorder.h>
46 #include <asm/param.h>
48 #include <linux/netdev_features.h>
49 #include <linux/udp.h>
50 #include <linux/tcp.h>
51 #include <net/udp_tunnel.h>
55 #include <linux/if_ether.h>
56 #include <linux/if_vlan.h>
57 #include <linux/pkt_sched.h>
58 #include <linux/ethtool.h>
60 #include <linux/random.h>
61 #include <net/ip6_checksum.h>
62 #include <linux/bitops.h>
63 #include <linux/vmalloc.h>
67 static char version[] =
68 "QLogic FastLinQ 4xxxx Ethernet Driver qede " DRV_MODULE_VERSION "\n";
70 MODULE_DESCRIPTION("QLogic FastLinQ 4xxxx Ethernet Driver");
71 MODULE_LICENSE("GPL");
72 MODULE_VERSION(DRV_MODULE_VERSION);
75 module_param(debug, uint, 0);
76 MODULE_PARM_DESC(debug, " Default debug msglevel");
78 static const struct qed_eth_ops *qed_ops;
80 #define CHIP_NUM_57980S_40 0x1634
81 #define CHIP_NUM_57980S_10 0x1666
82 #define CHIP_NUM_57980S_MF 0x1636
83 #define CHIP_NUM_57980S_100 0x1644
84 #define CHIP_NUM_57980S_50 0x1654
85 #define CHIP_NUM_57980S_25 0x1656
86 #define CHIP_NUM_57980S_IOV 0x1664
87 #define CHIP_NUM_AH 0x8070
88 #define CHIP_NUM_AH_IOV 0x8090
90 #ifndef PCI_DEVICE_ID_NX2_57980E
91 #define PCI_DEVICE_ID_57980S_40 CHIP_NUM_57980S_40
92 #define PCI_DEVICE_ID_57980S_10 CHIP_NUM_57980S_10
93 #define PCI_DEVICE_ID_57980S_MF CHIP_NUM_57980S_MF
94 #define PCI_DEVICE_ID_57980S_100 CHIP_NUM_57980S_100
95 #define PCI_DEVICE_ID_57980S_50 CHIP_NUM_57980S_50
96 #define PCI_DEVICE_ID_57980S_25 CHIP_NUM_57980S_25
97 #define PCI_DEVICE_ID_57980S_IOV CHIP_NUM_57980S_IOV
98 #define PCI_DEVICE_ID_AH CHIP_NUM_AH
99 #define PCI_DEVICE_ID_AH_IOV CHIP_NUM_AH_IOV
103 enum qede_pci_private {
108 static const struct pci_device_id qede_pci_tbl[] = {
109 {PCI_VDEVICE(QLOGIC, PCI_DEVICE_ID_57980S_40), QEDE_PRIVATE_PF},
110 {PCI_VDEVICE(QLOGIC, PCI_DEVICE_ID_57980S_10), QEDE_PRIVATE_PF},
111 {PCI_VDEVICE(QLOGIC, PCI_DEVICE_ID_57980S_MF), QEDE_PRIVATE_PF},
112 {PCI_VDEVICE(QLOGIC, PCI_DEVICE_ID_57980S_100), QEDE_PRIVATE_PF},
113 {PCI_VDEVICE(QLOGIC, PCI_DEVICE_ID_57980S_50), QEDE_PRIVATE_PF},
114 {PCI_VDEVICE(QLOGIC, PCI_DEVICE_ID_57980S_25), QEDE_PRIVATE_PF},
115 #ifdef CONFIG_QED_SRIOV
116 {PCI_VDEVICE(QLOGIC, PCI_DEVICE_ID_57980S_IOV), QEDE_PRIVATE_VF},
118 {PCI_VDEVICE(QLOGIC, PCI_DEVICE_ID_AH), QEDE_PRIVATE_PF},
119 #ifdef CONFIG_QED_SRIOV
120 {PCI_VDEVICE(QLOGIC, PCI_DEVICE_ID_AH_IOV), QEDE_PRIVATE_VF},
125 MODULE_DEVICE_TABLE(pci, qede_pci_tbl);
127 static int qede_probe(struct pci_dev *pdev, const struct pci_device_id *id);
129 #define TX_TIMEOUT (5 * HZ)
131 /* Utilize last protocol index for XDP */
134 static void qede_remove(struct pci_dev *pdev);
135 static void qede_shutdown(struct pci_dev *pdev);
136 static void qede_link_update(void *dev, struct qed_link_output *link);
138 /* The qede lock is used to protect driver state change and driver flows that
141 void __qede_lock(struct qede_dev *edev)
143 mutex_lock(&edev->qede_lock);
146 void __qede_unlock(struct qede_dev *edev)
148 mutex_unlock(&edev->qede_lock);
151 #ifdef CONFIG_QED_SRIOV
152 static int qede_set_vf_vlan(struct net_device *ndev, int vf, u16 vlan, u8 qos,
155 struct qede_dev *edev = netdev_priv(ndev);
158 DP_NOTICE(edev, "Illegal vlan value %d\n", vlan);
162 if (vlan_proto != htons(ETH_P_8021Q))
163 return -EPROTONOSUPPORT;
165 DP_VERBOSE(edev, QED_MSG_IOV, "Setting Vlan 0x%04x to VF [%d]\n",
168 return edev->ops->iov->set_vlan(edev->cdev, vlan, vf);
171 static int qede_set_vf_mac(struct net_device *ndev, int vfidx, u8 *mac)
173 struct qede_dev *edev = netdev_priv(ndev);
175 DP_VERBOSE(edev, QED_MSG_IOV,
176 "Setting MAC %02x:%02x:%02x:%02x:%02x:%02x to VF [%d]\n",
177 mac[0], mac[1], mac[2], mac[3], mac[4], mac[5], vfidx);
179 if (!is_valid_ether_addr(mac)) {
180 DP_VERBOSE(edev, QED_MSG_IOV, "MAC address isn't valid\n");
184 return edev->ops->iov->set_mac(edev->cdev, mac, vfidx);
187 static int qede_sriov_configure(struct pci_dev *pdev, int num_vfs_param)
189 struct qede_dev *edev = netdev_priv(pci_get_drvdata(pdev));
190 struct qed_dev_info *qed_info = &edev->dev_info.common;
191 struct qed_update_vport_params *vport_params;
194 vport_params = vzalloc(sizeof(*vport_params));
197 DP_VERBOSE(edev, QED_MSG_IOV, "Requested %d VFs\n", num_vfs_param);
199 rc = edev->ops->iov->configure(edev->cdev, num_vfs_param);
201 /* Enable/Disable Tx switching for PF */
202 if ((rc == num_vfs_param) && netif_running(edev->ndev) &&
203 qed_info->mf_mode != QED_MF_NPAR && qed_info->tx_switching) {
204 vport_params->vport_id = 0;
205 vport_params->update_tx_switching_flg = 1;
206 vport_params->tx_switching_flg = num_vfs_param ? 1 : 0;
207 edev->ops->vport_update(edev->cdev, vport_params);
215 static struct pci_driver qede_pci_driver = {
217 .id_table = qede_pci_tbl,
219 .remove = qede_remove,
220 .shutdown = qede_shutdown,
221 #ifdef CONFIG_QED_SRIOV
222 .sriov_configure = qede_sriov_configure,
226 static struct qed_eth_cb_ops qede_ll_ops = {
228 #ifdef CONFIG_RFS_ACCEL
229 .arfs_filter_op = qede_arfs_filter_op,
231 .link_update = qede_link_update,
233 .force_mac = qede_force_mac,
234 .ports_update = qede_udp_ports_update,
237 static int qede_netdev_event(struct notifier_block *this, unsigned long event,
240 struct net_device *ndev = netdev_notifier_info_to_dev(ptr);
241 struct ethtool_drvinfo drvinfo;
242 struct qede_dev *edev;
244 if (event != NETDEV_CHANGENAME && event != NETDEV_CHANGEADDR)
247 /* Check whether this is a qede device */
248 if (!ndev || !ndev->ethtool_ops || !ndev->ethtool_ops->get_drvinfo)
251 memset(&drvinfo, 0, sizeof(drvinfo));
252 ndev->ethtool_ops->get_drvinfo(ndev, &drvinfo);
253 if (strcmp(drvinfo.driver, "qede"))
255 edev = netdev_priv(ndev);
258 case NETDEV_CHANGENAME:
259 /* Notify qed of the name change */
260 if (!edev->ops || !edev->ops->common)
262 edev->ops->common->set_name(edev->cdev, edev->ndev->name);
264 case NETDEV_CHANGEADDR:
265 edev = netdev_priv(ndev);
266 qede_rdma_event_changeaddr(edev);
274 static struct notifier_block qede_netdev_notifier = {
275 .notifier_call = qede_netdev_event,
279 int __init qede_init(void)
283 pr_info("qede_init: %s\n", version);
285 qed_ops = qed_get_eth_ops();
287 pr_notice("Failed to get qed ethtool operations\n");
291 /* Must register notifier before pci ops, since we might miss
292 * interface rename after pci probe and netdev registeration.
294 ret = register_netdevice_notifier(&qede_netdev_notifier);
296 pr_notice("Failed to register netdevice_notifier\n");
301 ret = pci_register_driver(&qede_pci_driver);
303 pr_notice("Failed to register driver\n");
304 unregister_netdevice_notifier(&qede_netdev_notifier);
312 static void __exit qede_cleanup(void)
314 if (debug & QED_LOG_INFO_MASK)
315 pr_info("qede_cleanup called\n");
317 unregister_netdevice_notifier(&qede_netdev_notifier);
318 pci_unregister_driver(&qede_pci_driver);
322 module_init(qede_init);
323 module_exit(qede_cleanup);
325 static int qede_open(struct net_device *ndev);
326 static int qede_close(struct net_device *ndev);
328 void qede_fill_by_demand_stats(struct qede_dev *edev)
330 struct qede_stats_common *p_common = &edev->stats.common;
331 struct qed_eth_stats stats;
333 edev->ops->get_vport_stats(edev->cdev, &stats);
335 p_common->no_buff_discards = stats.common.no_buff_discards;
336 p_common->packet_too_big_discard = stats.common.packet_too_big_discard;
337 p_common->ttl0_discard = stats.common.ttl0_discard;
338 p_common->rx_ucast_bytes = stats.common.rx_ucast_bytes;
339 p_common->rx_mcast_bytes = stats.common.rx_mcast_bytes;
340 p_common->rx_bcast_bytes = stats.common.rx_bcast_bytes;
341 p_common->rx_ucast_pkts = stats.common.rx_ucast_pkts;
342 p_common->rx_mcast_pkts = stats.common.rx_mcast_pkts;
343 p_common->rx_bcast_pkts = stats.common.rx_bcast_pkts;
344 p_common->mftag_filter_discards = stats.common.mftag_filter_discards;
345 p_common->mac_filter_discards = stats.common.mac_filter_discards;
347 p_common->tx_ucast_bytes = stats.common.tx_ucast_bytes;
348 p_common->tx_mcast_bytes = stats.common.tx_mcast_bytes;
349 p_common->tx_bcast_bytes = stats.common.tx_bcast_bytes;
350 p_common->tx_ucast_pkts = stats.common.tx_ucast_pkts;
351 p_common->tx_mcast_pkts = stats.common.tx_mcast_pkts;
352 p_common->tx_bcast_pkts = stats.common.tx_bcast_pkts;
353 p_common->tx_err_drop_pkts = stats.common.tx_err_drop_pkts;
354 p_common->coalesced_pkts = stats.common.tpa_coalesced_pkts;
355 p_common->coalesced_events = stats.common.tpa_coalesced_events;
356 p_common->coalesced_aborts_num = stats.common.tpa_aborts_num;
357 p_common->non_coalesced_pkts = stats.common.tpa_not_coalesced_pkts;
358 p_common->coalesced_bytes = stats.common.tpa_coalesced_bytes;
360 p_common->rx_64_byte_packets = stats.common.rx_64_byte_packets;
361 p_common->rx_65_to_127_byte_packets =
362 stats.common.rx_65_to_127_byte_packets;
363 p_common->rx_128_to_255_byte_packets =
364 stats.common.rx_128_to_255_byte_packets;
365 p_common->rx_256_to_511_byte_packets =
366 stats.common.rx_256_to_511_byte_packets;
367 p_common->rx_512_to_1023_byte_packets =
368 stats.common.rx_512_to_1023_byte_packets;
369 p_common->rx_1024_to_1518_byte_packets =
370 stats.common.rx_1024_to_1518_byte_packets;
371 p_common->rx_crc_errors = stats.common.rx_crc_errors;
372 p_common->rx_mac_crtl_frames = stats.common.rx_mac_crtl_frames;
373 p_common->rx_pause_frames = stats.common.rx_pause_frames;
374 p_common->rx_pfc_frames = stats.common.rx_pfc_frames;
375 p_common->rx_align_errors = stats.common.rx_align_errors;
376 p_common->rx_carrier_errors = stats.common.rx_carrier_errors;
377 p_common->rx_oversize_packets = stats.common.rx_oversize_packets;
378 p_common->rx_jabbers = stats.common.rx_jabbers;
379 p_common->rx_undersize_packets = stats.common.rx_undersize_packets;
380 p_common->rx_fragments = stats.common.rx_fragments;
381 p_common->tx_64_byte_packets = stats.common.tx_64_byte_packets;
382 p_common->tx_65_to_127_byte_packets =
383 stats.common.tx_65_to_127_byte_packets;
384 p_common->tx_128_to_255_byte_packets =
385 stats.common.tx_128_to_255_byte_packets;
386 p_common->tx_256_to_511_byte_packets =
387 stats.common.tx_256_to_511_byte_packets;
388 p_common->tx_512_to_1023_byte_packets =
389 stats.common.tx_512_to_1023_byte_packets;
390 p_common->tx_1024_to_1518_byte_packets =
391 stats.common.tx_1024_to_1518_byte_packets;
392 p_common->tx_pause_frames = stats.common.tx_pause_frames;
393 p_common->tx_pfc_frames = stats.common.tx_pfc_frames;
394 p_common->brb_truncates = stats.common.brb_truncates;
395 p_common->brb_discards = stats.common.brb_discards;
396 p_common->tx_mac_ctrl_frames = stats.common.tx_mac_ctrl_frames;
398 if (QEDE_IS_BB(edev)) {
399 struct qede_stats_bb *p_bb = &edev->stats.bb;
401 p_bb->rx_1519_to_1522_byte_packets =
402 stats.bb.rx_1519_to_1522_byte_packets;
403 p_bb->rx_1519_to_2047_byte_packets =
404 stats.bb.rx_1519_to_2047_byte_packets;
405 p_bb->rx_2048_to_4095_byte_packets =
406 stats.bb.rx_2048_to_4095_byte_packets;
407 p_bb->rx_4096_to_9216_byte_packets =
408 stats.bb.rx_4096_to_9216_byte_packets;
409 p_bb->rx_9217_to_16383_byte_packets =
410 stats.bb.rx_9217_to_16383_byte_packets;
411 p_bb->tx_1519_to_2047_byte_packets =
412 stats.bb.tx_1519_to_2047_byte_packets;
413 p_bb->tx_2048_to_4095_byte_packets =
414 stats.bb.tx_2048_to_4095_byte_packets;
415 p_bb->tx_4096_to_9216_byte_packets =
416 stats.bb.tx_4096_to_9216_byte_packets;
417 p_bb->tx_9217_to_16383_byte_packets =
418 stats.bb.tx_9217_to_16383_byte_packets;
419 p_bb->tx_lpi_entry_count = stats.bb.tx_lpi_entry_count;
420 p_bb->tx_total_collisions = stats.bb.tx_total_collisions;
422 struct qede_stats_ah *p_ah = &edev->stats.ah;
424 p_ah->rx_1519_to_max_byte_packets =
425 stats.ah.rx_1519_to_max_byte_packets;
426 p_ah->tx_1519_to_max_byte_packets =
427 stats.ah.tx_1519_to_max_byte_packets;
431 static void qede_get_stats64(struct net_device *dev,
432 struct rtnl_link_stats64 *stats)
434 struct qede_dev *edev = netdev_priv(dev);
435 struct qede_stats_common *p_common;
437 qede_fill_by_demand_stats(edev);
438 p_common = &edev->stats.common;
440 stats->rx_packets = p_common->rx_ucast_pkts + p_common->rx_mcast_pkts +
441 p_common->rx_bcast_pkts;
442 stats->tx_packets = p_common->tx_ucast_pkts + p_common->tx_mcast_pkts +
443 p_common->tx_bcast_pkts;
445 stats->rx_bytes = p_common->rx_ucast_bytes + p_common->rx_mcast_bytes +
446 p_common->rx_bcast_bytes;
447 stats->tx_bytes = p_common->tx_ucast_bytes + p_common->tx_mcast_bytes +
448 p_common->tx_bcast_bytes;
450 stats->tx_errors = p_common->tx_err_drop_pkts;
451 stats->multicast = p_common->rx_mcast_pkts + p_common->rx_bcast_pkts;
453 stats->rx_fifo_errors = p_common->no_buff_discards;
455 if (QEDE_IS_BB(edev))
456 stats->collisions = edev->stats.bb.tx_total_collisions;
457 stats->rx_crc_errors = p_common->rx_crc_errors;
458 stats->rx_frame_errors = p_common->rx_align_errors;
461 #ifdef CONFIG_QED_SRIOV
462 static int qede_get_vf_config(struct net_device *dev, int vfidx,
463 struct ifla_vf_info *ivi)
465 struct qede_dev *edev = netdev_priv(dev);
470 return edev->ops->iov->get_config(edev->cdev, vfidx, ivi);
473 static int qede_set_vf_rate(struct net_device *dev, int vfidx,
474 int min_tx_rate, int max_tx_rate)
476 struct qede_dev *edev = netdev_priv(dev);
478 return edev->ops->iov->set_rate(edev->cdev, vfidx, min_tx_rate,
482 static int qede_set_vf_spoofchk(struct net_device *dev, int vfidx, bool val)
484 struct qede_dev *edev = netdev_priv(dev);
489 return edev->ops->iov->set_spoof(edev->cdev, vfidx, val);
492 static int qede_set_vf_link_state(struct net_device *dev, int vfidx,
495 struct qede_dev *edev = netdev_priv(dev);
500 return edev->ops->iov->set_link_state(edev->cdev, vfidx, link_state);
503 static int qede_set_vf_trust(struct net_device *dev, int vfidx, bool setting)
505 struct qede_dev *edev = netdev_priv(dev);
510 return edev->ops->iov->set_trust(edev->cdev, vfidx, setting);
514 static int qede_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd)
516 struct qede_dev *edev = netdev_priv(dev);
518 if (!netif_running(dev))
523 return qede_ptp_hw_ts(edev, ifr);
525 DP_VERBOSE(edev, QED_MSG_DEBUG,
526 "default IOCTL cmd 0x%x\n", cmd);
533 static const struct net_device_ops qede_netdev_ops = {
534 .ndo_open = qede_open,
535 .ndo_stop = qede_close,
536 .ndo_start_xmit = qede_start_xmit,
537 .ndo_set_rx_mode = qede_set_rx_mode,
538 .ndo_set_mac_address = qede_set_mac_addr,
539 .ndo_validate_addr = eth_validate_addr,
540 .ndo_change_mtu = qede_change_mtu,
541 .ndo_do_ioctl = qede_ioctl,
542 #ifdef CONFIG_QED_SRIOV
543 .ndo_set_vf_mac = qede_set_vf_mac,
544 .ndo_set_vf_vlan = qede_set_vf_vlan,
545 .ndo_set_vf_trust = qede_set_vf_trust,
547 .ndo_vlan_rx_add_vid = qede_vlan_rx_add_vid,
548 .ndo_vlan_rx_kill_vid = qede_vlan_rx_kill_vid,
549 .ndo_set_features = qede_set_features,
550 .ndo_get_stats64 = qede_get_stats64,
551 #ifdef CONFIG_QED_SRIOV
552 .ndo_set_vf_link_state = qede_set_vf_link_state,
553 .ndo_set_vf_spoofchk = qede_set_vf_spoofchk,
554 .ndo_get_vf_config = qede_get_vf_config,
555 .ndo_set_vf_rate = qede_set_vf_rate,
557 .ndo_udp_tunnel_add = qede_udp_tunnel_add,
558 .ndo_udp_tunnel_del = qede_udp_tunnel_del,
559 .ndo_features_check = qede_features_check,
561 #ifdef CONFIG_RFS_ACCEL
562 .ndo_rx_flow_steer = qede_rx_flow_steer,
566 static const struct net_device_ops qede_netdev_vf_ops = {
567 .ndo_open = qede_open,
568 .ndo_stop = qede_close,
569 .ndo_start_xmit = qede_start_xmit,
570 .ndo_set_rx_mode = qede_set_rx_mode,
571 .ndo_set_mac_address = qede_set_mac_addr,
572 .ndo_validate_addr = eth_validate_addr,
573 .ndo_change_mtu = qede_change_mtu,
574 .ndo_vlan_rx_add_vid = qede_vlan_rx_add_vid,
575 .ndo_vlan_rx_kill_vid = qede_vlan_rx_kill_vid,
576 .ndo_set_features = qede_set_features,
577 .ndo_get_stats64 = qede_get_stats64,
578 .ndo_udp_tunnel_add = qede_udp_tunnel_add,
579 .ndo_udp_tunnel_del = qede_udp_tunnel_del,
580 .ndo_features_check = qede_features_check,
583 static const struct net_device_ops qede_netdev_vf_xdp_ops = {
584 .ndo_open = qede_open,
585 .ndo_stop = qede_close,
586 .ndo_start_xmit = qede_start_xmit,
587 .ndo_set_rx_mode = qede_set_rx_mode,
588 .ndo_set_mac_address = qede_set_mac_addr,
589 .ndo_validate_addr = eth_validate_addr,
590 .ndo_change_mtu = qede_change_mtu,
591 .ndo_vlan_rx_add_vid = qede_vlan_rx_add_vid,
592 .ndo_vlan_rx_kill_vid = qede_vlan_rx_kill_vid,
593 .ndo_set_features = qede_set_features,
594 .ndo_get_stats64 = qede_get_stats64,
595 .ndo_udp_tunnel_add = qede_udp_tunnel_add,
596 .ndo_udp_tunnel_del = qede_udp_tunnel_del,
597 .ndo_features_check = qede_features_check,
601 /* -------------------------------------------------------------------------
602 * START OF PROBE / REMOVE
603 * -------------------------------------------------------------------------
606 static struct qede_dev *qede_alloc_etherdev(struct qed_dev *cdev,
607 struct pci_dev *pdev,
608 struct qed_dev_eth_info *info,
609 u32 dp_module, u8 dp_level)
611 struct net_device *ndev;
612 struct qede_dev *edev;
614 ndev = alloc_etherdev_mqs(sizeof(*edev),
615 info->num_queues, info->num_queues);
617 pr_err("etherdev allocation failed\n");
621 edev = netdev_priv(ndev);
625 edev->dp_module = dp_module;
626 edev->dp_level = dp_level;
629 if (is_kdump_kernel()) {
630 edev->q_num_rx_buffers = NUM_RX_BDS_KDUMP_MIN;
631 edev->q_num_tx_buffers = NUM_TX_BDS_KDUMP_MIN;
633 edev->q_num_rx_buffers = NUM_RX_BDS_DEF;
634 edev->q_num_tx_buffers = NUM_TX_BDS_DEF;
637 DP_INFO(edev, "Allocated netdev with %d tx queues and %d rx queues\n",
638 info->num_queues, info->num_queues);
640 SET_NETDEV_DEV(ndev, &pdev->dev);
642 memset(&edev->stats, 0, sizeof(edev->stats));
643 memcpy(&edev->dev_info, info, sizeof(*info));
645 /* As ethtool doesn't have the ability to show WoL behavior as
646 * 'default', if device supports it declare it's enabled.
648 if (edev->dev_info.common.wol_support)
649 edev->wol_enabled = true;
651 INIT_LIST_HEAD(&edev->vlan_list);
656 static void qede_init_ndev(struct qede_dev *edev)
658 struct net_device *ndev = edev->ndev;
659 struct pci_dev *pdev = edev->pdev;
660 bool udp_tunnel_enable = false;
661 netdev_features_t hw_features;
663 pci_set_drvdata(pdev, ndev);
665 ndev->mem_start = edev->dev_info.common.pci_mem_start;
666 ndev->base_addr = ndev->mem_start;
667 ndev->mem_end = edev->dev_info.common.pci_mem_end;
668 ndev->irq = edev->dev_info.common.pci_irq;
670 ndev->watchdog_timeo = TX_TIMEOUT;
673 if (edev->dev_info.xdp_supported)
674 ndev->netdev_ops = &qede_netdev_vf_xdp_ops;
676 ndev->netdev_ops = &qede_netdev_vf_ops;
678 ndev->netdev_ops = &qede_netdev_ops;
681 qede_set_ethtool_ops(ndev);
683 ndev->priv_flags |= IFF_UNICAST_FLT;
685 /* user-changeble features */
686 hw_features = NETIF_F_GRO | NETIF_F_SG |
687 NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM |
688 NETIF_F_TSO | NETIF_F_TSO6;
690 if (!IS_VF(edev) && edev->dev_info.common.num_hwfns == 1)
691 hw_features |= NETIF_F_NTUPLE;
693 if (edev->dev_info.common.vxlan_enable ||
694 edev->dev_info.common.geneve_enable)
695 udp_tunnel_enable = true;
697 if (udp_tunnel_enable || edev->dev_info.common.gre_enable) {
698 hw_features |= NETIF_F_TSO_ECN;
699 ndev->hw_enc_features = NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM |
700 NETIF_F_SG | NETIF_F_TSO |
701 NETIF_F_TSO_ECN | NETIF_F_TSO6 |
705 if (udp_tunnel_enable) {
706 hw_features |= (NETIF_F_GSO_UDP_TUNNEL |
707 NETIF_F_GSO_UDP_TUNNEL_CSUM);
708 ndev->hw_enc_features |= (NETIF_F_GSO_UDP_TUNNEL |
709 NETIF_F_GSO_UDP_TUNNEL_CSUM);
712 if (edev->dev_info.common.gre_enable) {
713 hw_features |= (NETIF_F_GSO_GRE | NETIF_F_GSO_GRE_CSUM);
714 ndev->hw_enc_features |= (NETIF_F_GSO_GRE |
715 NETIF_F_GSO_GRE_CSUM);
718 ndev->vlan_features = hw_features | NETIF_F_RXHASH | NETIF_F_RXCSUM |
720 ndev->features = hw_features | NETIF_F_RXHASH | NETIF_F_RXCSUM |
721 NETIF_F_HW_VLAN_CTAG_RX | NETIF_F_HIGHDMA |
722 NETIF_F_HW_VLAN_CTAG_FILTER | NETIF_F_HW_VLAN_CTAG_TX;
724 ndev->hw_features = hw_features;
726 /* MTU range: 46 - 9600 */
727 ndev->min_mtu = ETH_ZLEN - ETH_HLEN;
728 ndev->max_mtu = QEDE_MAX_JUMBO_PACKET_SIZE;
730 /* Set network device HW mac */
731 ether_addr_copy(edev->ndev->dev_addr, edev->dev_info.common.hw_mac);
733 ndev->mtu = edev->dev_info.common.mtu;
736 /* This function converts from 32b param to two params of level and module
737 * Input 32b decoding:
738 * b31 - enable all NOTICE prints. NOTICE prints are for deviation from the
739 * 'happy' flow, e.g. memory allocation failed.
740 * b30 - enable all INFO prints. INFO prints are for major steps in the flow
741 * and provide important parameters.
742 * b29-b0 - per-module bitmap, where each bit enables VERBOSE prints of that
743 * module. VERBOSE prints are for tracking the specific flow in low level.
745 * Notice that the level should be that of the lowest required logs.
747 void qede_config_debug(uint debug, u32 *p_dp_module, u8 *p_dp_level)
749 *p_dp_level = QED_LEVEL_NOTICE;
752 if (debug & QED_LOG_VERBOSE_MASK) {
753 *p_dp_level = QED_LEVEL_VERBOSE;
754 *p_dp_module = (debug & 0x3FFFFFFF);
755 } else if (debug & QED_LOG_INFO_MASK) {
756 *p_dp_level = QED_LEVEL_INFO;
757 } else if (debug & QED_LOG_NOTICE_MASK) {
758 *p_dp_level = QED_LEVEL_NOTICE;
762 static void qede_free_fp_array(struct qede_dev *edev)
764 if (edev->fp_array) {
765 struct qede_fastpath *fp;
769 fp = &edev->fp_array[i];
776 kfree(edev->fp_array);
779 edev->num_queues = 0;
784 static int qede_alloc_fp_array(struct qede_dev *edev)
786 u8 fp_combined, fp_rx = edev->fp_num_rx;
787 struct qede_fastpath *fp;
790 edev->fp_array = kcalloc(QEDE_QUEUE_CNT(edev),
791 sizeof(*edev->fp_array), GFP_KERNEL);
792 if (!edev->fp_array) {
793 DP_NOTICE(edev, "fp array allocation failed\n");
797 fp_combined = QEDE_QUEUE_CNT(edev) - fp_rx - edev->fp_num_tx;
799 /* Allocate the FP elements for Rx queues followed by combined and then
800 * the Tx. This ordering should be maintained so that the respective
801 * queues (Rx or Tx) will be together in the fastpath array and the
802 * associated ids will be sequential.
805 fp = &edev->fp_array[i];
807 fp->sb_info = kzalloc(sizeof(*fp->sb_info), GFP_KERNEL);
809 DP_NOTICE(edev, "sb info struct allocation failed\n");
814 fp->type = QEDE_FASTPATH_RX;
816 } else if (fp_combined) {
817 fp->type = QEDE_FASTPATH_COMBINED;
820 fp->type = QEDE_FASTPATH_TX;
823 if (fp->type & QEDE_FASTPATH_TX) {
824 fp->txq = kzalloc(sizeof(*fp->txq), GFP_KERNEL);
829 if (fp->type & QEDE_FASTPATH_RX) {
830 fp->rxq = kzalloc(sizeof(*fp->rxq), GFP_KERNEL);
834 if (edev->xdp_prog) {
835 fp->xdp_tx = kzalloc(sizeof(*fp->xdp_tx),
839 fp->type |= QEDE_FASTPATH_XDP;
846 qede_free_fp_array(edev);
850 static void qede_sp_task(struct work_struct *work)
852 struct qede_dev *edev = container_of(work, struct qede_dev,
857 if (test_and_clear_bit(QEDE_SP_RX_MODE, &edev->sp_flags))
858 if (edev->state == QEDE_STATE_OPEN)
859 qede_config_rx_mode(edev->ndev);
861 #ifdef CONFIG_RFS_ACCEL
862 if (test_and_clear_bit(QEDE_SP_ARFS_CONFIG, &edev->sp_flags)) {
863 if (edev->state == QEDE_STATE_OPEN)
864 qede_process_arfs_filters(edev, false);
870 static void qede_update_pf_params(struct qed_dev *cdev)
872 struct qed_pf_params pf_params;
874 /* 64 rx + 64 tx + 64 XDP */
875 memset(&pf_params, 0, sizeof(struct qed_pf_params));
876 pf_params.eth_pf_params.num_cons = (MAX_SB_PER_PF_MIMD - 1) * 3;
878 /* Same for VFs - make sure they'll have sufficient connections
879 * to support XDP Tx queues.
881 pf_params.eth_pf_params.num_vf_cons = 48;
883 pf_params.eth_pf_params.num_arfs_filters = QEDE_RFS_MAX_FLTR;
884 qed_ops->common->update_pf_params(cdev, &pf_params);
887 #define QEDE_FW_VER_STR_SIZE 80
889 static void qede_log_probe(struct qede_dev *edev)
891 struct qed_dev_info *p_dev_info = &edev->dev_info.common;
892 u8 buf[QEDE_FW_VER_STR_SIZE];
895 snprintf(buf, QEDE_FW_VER_STR_SIZE,
896 "Storm FW %d.%d.%d.%d, Management FW %d.%d.%d.%d",
897 p_dev_info->fw_major, p_dev_info->fw_minor, p_dev_info->fw_rev,
899 (p_dev_info->mfw_rev & QED_MFW_VERSION_3_MASK) >>
900 QED_MFW_VERSION_3_OFFSET,
901 (p_dev_info->mfw_rev & QED_MFW_VERSION_2_MASK) >>
902 QED_MFW_VERSION_2_OFFSET,
903 (p_dev_info->mfw_rev & QED_MFW_VERSION_1_MASK) >>
904 QED_MFW_VERSION_1_OFFSET,
905 (p_dev_info->mfw_rev & QED_MFW_VERSION_0_MASK) >>
906 QED_MFW_VERSION_0_OFFSET);
908 left_size = QEDE_FW_VER_STR_SIZE - strlen(buf);
909 if (p_dev_info->mbi_version && left_size)
910 snprintf(buf + strlen(buf), left_size,
912 (p_dev_info->mbi_version & QED_MBI_VERSION_2_MASK) >>
913 QED_MBI_VERSION_2_OFFSET,
914 (p_dev_info->mbi_version & QED_MBI_VERSION_1_MASK) >>
915 QED_MBI_VERSION_1_OFFSET,
916 (p_dev_info->mbi_version & QED_MBI_VERSION_0_MASK) >>
917 QED_MBI_VERSION_0_OFFSET);
919 pr_info("qede %02x:%02x.%02x: %s [%s]\n", edev->pdev->bus->number,
920 PCI_SLOT(edev->pdev->devfn), PCI_FUNC(edev->pdev->devfn),
921 buf, edev->ndev->name);
924 enum qede_probe_mode {
928 static int __qede_probe(struct pci_dev *pdev, u32 dp_module, u8 dp_level,
929 bool is_vf, enum qede_probe_mode mode)
931 struct qed_probe_params probe_params;
932 struct qed_slowpath_params sp_params;
933 struct qed_dev_eth_info dev_info;
934 struct qede_dev *edev;
935 struct qed_dev *cdev;
938 if (unlikely(dp_level & QED_LEVEL_INFO))
939 pr_notice("Starting qede probe\n");
941 memset(&probe_params, 0, sizeof(probe_params));
942 probe_params.protocol = QED_PROTOCOL_ETH;
943 probe_params.dp_module = dp_module;
944 probe_params.dp_level = dp_level;
945 probe_params.is_vf = is_vf;
946 cdev = qed_ops->common->probe(pdev, &probe_params);
952 qede_update_pf_params(cdev);
954 /* Start the Slowpath-process */
955 memset(&sp_params, 0, sizeof(sp_params));
956 sp_params.int_mode = QED_INT_MODE_MSIX;
957 sp_params.drv_major = QEDE_MAJOR_VERSION;
958 sp_params.drv_minor = QEDE_MINOR_VERSION;
959 sp_params.drv_rev = QEDE_REVISION_VERSION;
960 sp_params.drv_eng = QEDE_ENGINEERING_VERSION;
961 strlcpy(sp_params.name, "qede LAN", QED_DRV_VER_STR_SIZE);
962 rc = qed_ops->common->slowpath_start(cdev, &sp_params);
964 pr_notice("Cannot start slowpath\n");
968 /* Learn information crucial for qede to progress */
969 rc = qed_ops->fill_dev_info(cdev, &dev_info);
973 edev = qede_alloc_etherdev(cdev, pdev, &dev_info, dp_module,
981 edev->flags |= QEDE_FLAG_IS_VF;
983 qede_init_ndev(edev);
985 rc = qede_rdma_dev_add(edev);
989 /* Prepare the lock prior to the registeration of the netdev,
990 * as once it's registered we might reach flows requiring it
991 * [it's even possible to reach a flow needing it directly
992 * from there, although it's unlikely].
994 INIT_DELAYED_WORK(&edev->sp_task, qede_sp_task);
995 mutex_init(&edev->qede_lock);
996 rc = register_netdev(edev->ndev);
998 DP_NOTICE(edev, "Cannot register net-device\n");
1002 edev->ops->common->set_name(cdev, edev->ndev->name);
1004 /* PTP not supported on VFs */
1006 qede_ptp_enable(edev, true);
1008 edev->ops->register_ops(cdev, &qede_ll_ops, edev);
1012 qede_set_dcbnl_ops(edev->ndev);
1015 edev->rx_copybreak = QEDE_RX_HDR_SIZE;
1017 qede_log_probe(edev);
1021 qede_rdma_dev_remove(edev);
1023 free_netdev(edev->ndev);
1025 qed_ops->common->slowpath_stop(cdev);
1027 qed_ops->common->remove(cdev);
1032 static int qede_probe(struct pci_dev *pdev, const struct pci_device_id *id)
1038 switch ((enum qede_pci_private)id->driver_data) {
1039 case QEDE_PRIVATE_VF:
1040 if (debug & QED_LOG_VERBOSE_MASK)
1041 dev_err(&pdev->dev, "Probing a VF\n");
1045 if (debug & QED_LOG_VERBOSE_MASK)
1046 dev_err(&pdev->dev, "Probing a PF\n");
1049 qede_config_debug(debug, &dp_module, &dp_level);
1051 return __qede_probe(pdev, dp_module, dp_level, is_vf,
1055 enum qede_remove_mode {
1059 static void __qede_remove(struct pci_dev *pdev, enum qede_remove_mode mode)
1061 struct net_device *ndev = pci_get_drvdata(pdev);
1062 struct qede_dev *edev;
1063 struct qed_dev *cdev;
1066 dev_info(&pdev->dev, "Device has already been removed\n");
1070 edev = netdev_priv(ndev);
1073 DP_INFO(edev, "Starting qede_remove\n");
1075 unregister_netdev(ndev);
1076 cancel_delayed_work_sync(&edev->sp_task);
1078 qede_ptp_disable(edev);
1080 qede_rdma_dev_remove(edev);
1082 edev->ops->common->set_power_state(cdev, PCI_D0);
1084 pci_set_drvdata(pdev, NULL);
1086 /* Release edev's reference to XDP's bpf if such exist */
1088 bpf_prog_put(edev->xdp_prog);
1090 /* Use global ops since we've freed edev */
1091 qed_ops->common->slowpath_stop(cdev);
1092 if (system_state == SYSTEM_POWER_OFF)
1094 qed_ops->common->remove(cdev);
1096 /* Since this can happen out-of-sync with other flows,
1097 * don't release the netdevice until after slowpath stop
1098 * has been called to guarantee various other contexts
1099 * [e.g., QED register callbacks] won't break anything when
1100 * accessing the netdevice.
1104 dev_info(&pdev->dev, "Ending qede_remove successfully\n");
1107 static void qede_remove(struct pci_dev *pdev)
1109 __qede_remove(pdev, QEDE_REMOVE_NORMAL);
1112 static void qede_shutdown(struct pci_dev *pdev)
1114 __qede_remove(pdev, QEDE_REMOVE_NORMAL);
1117 /* -------------------------------------------------------------------------
1118 * START OF LOAD / UNLOAD
1119 * -------------------------------------------------------------------------
1122 static int qede_set_num_queues(struct qede_dev *edev)
1127 /* Setup queues according to possible resources*/
1128 if (edev->req_queues)
1129 rss_num = edev->req_queues;
1131 rss_num = netif_get_num_default_rss_queues() *
1132 edev->dev_info.common.num_hwfns;
1134 rss_num = min_t(u16, QEDE_MAX_RSS_CNT(edev), rss_num);
1136 rc = edev->ops->common->set_fp_int(edev->cdev, rss_num);
1138 /* Managed to request interrupts for our queues */
1139 edev->num_queues = rc;
1140 DP_INFO(edev, "Managed %d [of %d] RSS queues\n",
1141 QEDE_QUEUE_CNT(edev), rss_num);
1145 edev->fp_num_tx = edev->req_num_tx;
1146 edev->fp_num_rx = edev->req_num_rx;
1151 static void qede_free_mem_sb(struct qede_dev *edev, struct qed_sb_info *sb_info,
1154 if (sb_info->sb_virt) {
1155 edev->ops->common->sb_release(edev->cdev, sb_info, sb_id);
1156 dma_free_coherent(&edev->pdev->dev, sizeof(*sb_info->sb_virt),
1157 (void *)sb_info->sb_virt, sb_info->sb_phys);
1158 memset(sb_info, 0, sizeof(*sb_info));
1162 /* This function allocates fast-path status block memory */
1163 static int qede_alloc_mem_sb(struct qede_dev *edev,
1164 struct qed_sb_info *sb_info, u16 sb_id)
1166 struct status_block *sb_virt;
1170 sb_virt = dma_alloc_coherent(&edev->pdev->dev,
1171 sizeof(*sb_virt), &sb_phys, GFP_KERNEL);
1173 DP_ERR(edev, "Status block allocation failed\n");
1177 rc = edev->ops->common->sb_init(edev->cdev, sb_info,
1178 sb_virt, sb_phys, sb_id,
1179 QED_SB_TYPE_L2_QUEUE);
1181 DP_ERR(edev, "Status block initialization failed\n");
1182 dma_free_coherent(&edev->pdev->dev, sizeof(*sb_virt),
1190 static void qede_free_rx_buffers(struct qede_dev *edev,
1191 struct qede_rx_queue *rxq)
1195 for (i = rxq->sw_rx_cons; i != rxq->sw_rx_prod; i++) {
1196 struct sw_rx_data *rx_buf;
1199 rx_buf = &rxq->sw_rx_ring[i & NUM_RX_BDS_MAX];
1200 data = rx_buf->data;
1202 dma_unmap_page(&edev->pdev->dev,
1203 rx_buf->mapping, PAGE_SIZE, rxq->data_direction);
1205 rx_buf->data = NULL;
1210 static void qede_free_sge_mem(struct qede_dev *edev, struct qede_rx_queue *rxq)
1214 if (edev->gro_disable)
1217 for (i = 0; i < ETH_TPA_MAX_AGGS_NUM; i++) {
1218 struct qede_agg_info *tpa_info = &rxq->tpa_info[i];
1219 struct sw_rx_data *replace_buf = &tpa_info->buffer;
1221 if (replace_buf->data) {
1222 dma_unmap_page(&edev->pdev->dev,
1223 replace_buf->mapping,
1224 PAGE_SIZE, DMA_FROM_DEVICE);
1225 __free_page(replace_buf->data);
1230 static void qede_free_mem_rxq(struct qede_dev *edev, struct qede_rx_queue *rxq)
1232 qede_free_sge_mem(edev, rxq);
1234 /* Free rx buffers */
1235 qede_free_rx_buffers(edev, rxq);
1237 /* Free the parallel SW ring */
1238 kfree(rxq->sw_rx_ring);
1240 /* Free the real RQ ring used by FW */
1241 edev->ops->common->chain_free(edev->cdev, &rxq->rx_bd_ring);
1242 edev->ops->common->chain_free(edev->cdev, &rxq->rx_comp_ring);
1245 static int qede_alloc_sge_mem(struct qede_dev *edev, struct qede_rx_queue *rxq)
1250 /* Don't perform FW aggregations in case of XDP */
1252 edev->gro_disable = 1;
1254 if (edev->gro_disable)
1257 if (edev->ndev->mtu > PAGE_SIZE) {
1258 edev->gro_disable = 1;
1262 for (i = 0; i < ETH_TPA_MAX_AGGS_NUM; i++) {
1263 struct qede_agg_info *tpa_info = &rxq->tpa_info[i];
1264 struct sw_rx_data *replace_buf = &tpa_info->buffer;
1266 replace_buf->data = alloc_pages(GFP_ATOMIC, 0);
1267 if (unlikely(!replace_buf->data)) {
1269 "Failed to allocate TPA skb pool [replacement buffer]\n");
1273 mapping = dma_map_page(&edev->pdev->dev, replace_buf->data, 0,
1274 PAGE_SIZE, DMA_FROM_DEVICE);
1275 if (unlikely(dma_mapping_error(&edev->pdev->dev, mapping))) {
1277 "Failed to map TPA replacement buffer\n");
1281 replace_buf->mapping = mapping;
1282 tpa_info->buffer.page_offset = 0;
1283 tpa_info->buffer_mapping = mapping;
1284 tpa_info->state = QEDE_AGG_STATE_NONE;
1289 qede_free_sge_mem(edev, rxq);
1290 edev->gro_disable = 1;
1294 /* This function allocates all memory needed per Rx queue */
1295 static int qede_alloc_mem_rxq(struct qede_dev *edev, struct qede_rx_queue *rxq)
1299 rxq->num_rx_buffers = edev->q_num_rx_buffers;
1301 rxq->rx_buf_size = NET_IP_ALIGN + ETH_OVERHEAD + edev->ndev->mtu;
1302 rxq->rx_headroom = edev->xdp_prog ? XDP_PACKET_HEADROOM : 0;
1304 /* Make sure that the headroom and payload fit in a single page */
1305 if (rxq->rx_buf_size + rxq->rx_headroom > PAGE_SIZE)
1306 rxq->rx_buf_size = PAGE_SIZE - rxq->rx_headroom;
1308 /* Segment size to spilt a page in multiple equal parts,
1309 * unless XDP is used in which case we'd use the entire page.
1311 if (!edev->xdp_prog)
1312 rxq->rx_buf_seg_size = roundup_pow_of_two(rxq->rx_buf_size);
1314 rxq->rx_buf_seg_size = PAGE_SIZE;
1316 /* Allocate the parallel driver ring for Rx buffers */
1317 size = sizeof(*rxq->sw_rx_ring) * RX_RING_SIZE;
1318 rxq->sw_rx_ring = kzalloc(size, GFP_KERNEL);
1319 if (!rxq->sw_rx_ring) {
1320 DP_ERR(edev, "Rx buffers ring allocation failed\n");
1325 /* Allocate FW Rx ring */
1326 rc = edev->ops->common->chain_alloc(edev->cdev,
1327 QED_CHAIN_USE_TO_CONSUME_PRODUCE,
1328 QED_CHAIN_MODE_NEXT_PTR,
1329 QED_CHAIN_CNT_TYPE_U16,
1331 sizeof(struct eth_rx_bd),
1332 &rxq->rx_bd_ring, NULL);
1336 /* Allocate FW completion ring */
1337 rc = edev->ops->common->chain_alloc(edev->cdev,
1338 QED_CHAIN_USE_TO_CONSUME,
1340 QED_CHAIN_CNT_TYPE_U16,
1342 sizeof(union eth_rx_cqe),
1343 &rxq->rx_comp_ring, NULL);
1347 /* Allocate buffers for the Rx ring */
1348 rxq->filled_buffers = 0;
1349 for (i = 0; i < rxq->num_rx_buffers; i++) {
1350 rc = qede_alloc_rx_buffer(rxq, false);
1353 "Rx buffers allocation failed at index %d\n", i);
1358 rc = qede_alloc_sge_mem(edev, rxq);
1363 static void qede_free_mem_txq(struct qede_dev *edev, struct qede_tx_queue *txq)
1365 /* Free the parallel SW ring */
1367 kfree(txq->sw_tx_ring.xdp);
1369 kfree(txq->sw_tx_ring.skbs);
1371 /* Free the real RQ ring used by FW */
1372 edev->ops->common->chain_free(edev->cdev, &txq->tx_pbl);
1375 /* This function allocates all memory needed per Tx queue */
1376 static int qede_alloc_mem_txq(struct qede_dev *edev, struct qede_tx_queue *txq)
1378 union eth_tx_bd_types *p_virt;
1381 txq->num_tx_buffers = edev->q_num_tx_buffers;
1383 /* Allocate the parallel driver ring for Tx buffers */
1385 size = sizeof(*txq->sw_tx_ring.xdp) * txq->num_tx_buffers;
1386 txq->sw_tx_ring.xdp = kzalloc(size, GFP_KERNEL);
1387 if (!txq->sw_tx_ring.xdp)
1390 size = sizeof(*txq->sw_tx_ring.skbs) * txq->num_tx_buffers;
1391 txq->sw_tx_ring.skbs = kzalloc(size, GFP_KERNEL);
1392 if (!txq->sw_tx_ring.skbs)
1396 rc = edev->ops->common->chain_alloc(edev->cdev,
1397 QED_CHAIN_USE_TO_CONSUME_PRODUCE,
1399 QED_CHAIN_CNT_TYPE_U16,
1400 txq->num_tx_buffers,
1402 &txq->tx_pbl, NULL);
1409 qede_free_mem_txq(edev, txq);
1413 /* This function frees all memory of a single fp */
1414 static void qede_free_mem_fp(struct qede_dev *edev, struct qede_fastpath *fp)
1416 qede_free_mem_sb(edev, fp->sb_info, fp->id);
1418 if (fp->type & QEDE_FASTPATH_RX)
1419 qede_free_mem_rxq(edev, fp->rxq);
1421 if (fp->type & QEDE_FASTPATH_XDP)
1422 qede_free_mem_txq(edev, fp->xdp_tx);
1424 if (fp->type & QEDE_FASTPATH_TX)
1425 qede_free_mem_txq(edev, fp->txq);
1428 /* This function allocates all memory needed for a single fp (i.e. an entity
1429 * which contains status block, one rx queue and/or multiple per-TC tx queues.
1431 static int qede_alloc_mem_fp(struct qede_dev *edev, struct qede_fastpath *fp)
1435 rc = qede_alloc_mem_sb(edev, fp->sb_info, fp->id);
1439 if (fp->type & QEDE_FASTPATH_RX) {
1440 rc = qede_alloc_mem_rxq(edev, fp->rxq);
1445 if (fp->type & QEDE_FASTPATH_XDP) {
1446 rc = qede_alloc_mem_txq(edev, fp->xdp_tx);
1451 if (fp->type & QEDE_FASTPATH_TX) {
1452 rc = qede_alloc_mem_txq(edev, fp->txq);
1461 static void qede_free_mem_load(struct qede_dev *edev)
1466 struct qede_fastpath *fp = &edev->fp_array[i];
1468 qede_free_mem_fp(edev, fp);
1472 /* This function allocates all qede memory at NIC load. */
1473 static int qede_alloc_mem_load(struct qede_dev *edev)
1475 int rc = 0, queue_id;
1477 for (queue_id = 0; queue_id < QEDE_QUEUE_CNT(edev); queue_id++) {
1478 struct qede_fastpath *fp = &edev->fp_array[queue_id];
1480 rc = qede_alloc_mem_fp(edev, fp);
1483 "Failed to allocate memory for fastpath - rss id = %d\n",
1485 qede_free_mem_load(edev);
1493 /* This function inits fp content and resets the SB, RXQ and TXQ structures */
1494 static void qede_init_fp(struct qede_dev *edev)
1496 int queue_id, rxq_index = 0, txq_index = 0;
1497 struct qede_fastpath *fp;
1499 for_each_queue(queue_id) {
1500 fp = &edev->fp_array[queue_id];
1505 if (fp->type & QEDE_FASTPATH_XDP) {
1506 fp->xdp_tx->index = QEDE_TXQ_IDX_TO_XDP(edev,
1508 fp->xdp_tx->is_xdp = 1;
1511 if (fp->type & QEDE_FASTPATH_RX) {
1512 fp->rxq->rxq_id = rxq_index++;
1514 /* Determine how to map buffers for this queue */
1515 if (fp->type & QEDE_FASTPATH_XDP)
1516 fp->rxq->data_direction = DMA_BIDIRECTIONAL;
1518 fp->rxq->data_direction = DMA_FROM_DEVICE;
1519 fp->rxq->dev = &edev->pdev->dev;
1522 if (fp->type & QEDE_FASTPATH_TX) {
1523 fp->txq->index = txq_index++;
1524 if (edev->dev_info.is_legacy)
1525 fp->txq->is_legacy = 1;
1526 fp->txq->dev = &edev->pdev->dev;
1529 snprintf(fp->name, sizeof(fp->name), "%s-fp-%d",
1530 edev->ndev->name, queue_id);
1533 edev->gro_disable = !(edev->ndev->features & NETIF_F_GRO);
1536 static int qede_set_real_num_queues(struct qede_dev *edev)
1540 rc = netif_set_real_num_tx_queues(edev->ndev, QEDE_TSS_COUNT(edev));
1542 DP_NOTICE(edev, "Failed to set real number of Tx queues\n");
1546 rc = netif_set_real_num_rx_queues(edev->ndev, QEDE_RSS_COUNT(edev));
1548 DP_NOTICE(edev, "Failed to set real number of Rx queues\n");
1555 static void qede_napi_disable_remove(struct qede_dev *edev)
1560 napi_disable(&edev->fp_array[i].napi);
1562 netif_napi_del(&edev->fp_array[i].napi);
1566 static void qede_napi_add_enable(struct qede_dev *edev)
1570 /* Add NAPI objects */
1572 netif_napi_add(edev->ndev, &edev->fp_array[i].napi,
1573 qede_poll, NAPI_POLL_WEIGHT);
1574 napi_enable(&edev->fp_array[i].napi);
1578 static void qede_sync_free_irqs(struct qede_dev *edev)
1582 for (i = 0; i < edev->int_info.used_cnt; i++) {
1583 if (edev->int_info.msix_cnt) {
1584 synchronize_irq(edev->int_info.msix[i].vector);
1585 free_irq(edev->int_info.msix[i].vector,
1586 &edev->fp_array[i]);
1588 edev->ops->common->simd_handler_clean(edev->cdev, i);
1592 edev->int_info.used_cnt = 0;
1593 edev->int_info.msix_cnt = 0;
1596 static int qede_req_msix_irqs(struct qede_dev *edev)
1600 /* Sanitize number of interrupts == number of prepared RSS queues */
1601 if (QEDE_QUEUE_CNT(edev) > edev->int_info.msix_cnt) {
1603 "Interrupt mismatch: %d RSS queues > %d MSI-x vectors\n",
1604 QEDE_QUEUE_CNT(edev), edev->int_info.msix_cnt);
1608 for (i = 0; i < QEDE_QUEUE_CNT(edev); i++) {
1609 #ifdef CONFIG_RFS_ACCEL
1610 struct qede_fastpath *fp = &edev->fp_array[i];
1612 if (edev->ndev->rx_cpu_rmap && (fp->type & QEDE_FASTPATH_RX)) {
1613 rc = irq_cpu_rmap_add(edev->ndev->rx_cpu_rmap,
1614 edev->int_info.msix[i].vector);
1616 DP_ERR(edev, "Failed to add CPU rmap\n");
1617 qede_free_arfs(edev);
1621 rc = request_irq(edev->int_info.msix[i].vector,
1622 qede_msix_fp_int, 0, edev->fp_array[i].name,
1623 &edev->fp_array[i]);
1625 DP_ERR(edev, "Request fp %d irq failed\n", i);
1626 qede_sync_free_irqs(edev);
1629 DP_VERBOSE(edev, NETIF_MSG_INTR,
1630 "Requested fp irq for %s [entry %d]. Cookie is at %p\n",
1631 edev->fp_array[i].name, i,
1632 &edev->fp_array[i]);
1633 edev->int_info.used_cnt++;
1639 static void qede_simd_fp_handler(void *cookie)
1641 struct qede_fastpath *fp = (struct qede_fastpath *)cookie;
1643 napi_schedule_irqoff(&fp->napi);
1646 static int qede_setup_irqs(struct qede_dev *edev)
1650 /* Learn Interrupt configuration */
1651 rc = edev->ops->common->get_fp_int(edev->cdev, &edev->int_info);
1655 if (edev->int_info.msix_cnt) {
1656 rc = qede_req_msix_irqs(edev);
1659 edev->ndev->irq = edev->int_info.msix[0].vector;
1661 const struct qed_common_ops *ops;
1663 /* qed should learn receive the RSS ids and callbacks */
1664 ops = edev->ops->common;
1665 for (i = 0; i < QEDE_QUEUE_CNT(edev); i++)
1666 ops->simd_handler_config(edev->cdev,
1667 &edev->fp_array[i], i,
1668 qede_simd_fp_handler);
1669 edev->int_info.used_cnt = QEDE_QUEUE_CNT(edev);
1674 static int qede_drain_txq(struct qede_dev *edev,
1675 struct qede_tx_queue *txq, bool allow_drain)
1679 while (txq->sw_tx_cons != txq->sw_tx_prod) {
1683 "Tx queue[%d] is stuck, requesting MCP to drain\n",
1685 rc = edev->ops->common->drain(edev->cdev);
1688 return qede_drain_txq(edev, txq, false);
1691 "Timeout waiting for tx queue[%d]: PROD=%d, CONS=%d\n",
1692 txq->index, txq->sw_tx_prod,
1697 usleep_range(1000, 2000);
1701 /* FW finished processing, wait for HW to transmit all tx packets */
1702 usleep_range(1000, 2000);
1707 static int qede_stop_txq(struct qede_dev *edev,
1708 struct qede_tx_queue *txq, int rss_id)
1710 return edev->ops->q_tx_stop(edev->cdev, rss_id, txq->handle);
1713 static int qede_stop_queues(struct qede_dev *edev)
1715 struct qed_update_vport_params *vport_update_params;
1716 struct qed_dev *cdev = edev->cdev;
1717 struct qede_fastpath *fp;
1720 /* Disable the vport */
1721 vport_update_params = vzalloc(sizeof(*vport_update_params));
1722 if (!vport_update_params)
1725 vport_update_params->vport_id = 0;
1726 vport_update_params->update_vport_active_flg = 1;
1727 vport_update_params->vport_active_flg = 0;
1728 vport_update_params->update_rss_flg = 0;
1730 rc = edev->ops->vport_update(cdev, vport_update_params);
1731 vfree(vport_update_params);
1734 DP_ERR(edev, "Failed to update vport\n");
1738 /* Flush Tx queues. If needed, request drain from MCP */
1740 fp = &edev->fp_array[i];
1742 if (fp->type & QEDE_FASTPATH_TX) {
1743 rc = qede_drain_txq(edev, fp->txq, true);
1748 if (fp->type & QEDE_FASTPATH_XDP) {
1749 rc = qede_drain_txq(edev, fp->xdp_tx, true);
1755 /* Stop all Queues in reverse order */
1756 for (i = QEDE_QUEUE_CNT(edev) - 1; i >= 0; i--) {
1757 fp = &edev->fp_array[i];
1759 /* Stop the Tx Queue(s) */
1760 if (fp->type & QEDE_FASTPATH_TX) {
1761 rc = qede_stop_txq(edev, fp->txq, i);
1766 /* Stop the Rx Queue */
1767 if (fp->type & QEDE_FASTPATH_RX) {
1768 rc = edev->ops->q_rx_stop(cdev, i, fp->rxq->handle);
1770 DP_ERR(edev, "Failed to stop RXQ #%d\n", i);
1775 /* Stop the XDP forwarding queue */
1776 if (fp->type & QEDE_FASTPATH_XDP) {
1777 rc = qede_stop_txq(edev, fp->xdp_tx, i);
1781 bpf_prog_put(fp->rxq->xdp_prog);
1785 /* Stop the vport */
1786 rc = edev->ops->vport_stop(cdev, 0);
1788 DP_ERR(edev, "Failed to stop VPORT\n");
1793 static int qede_start_txq(struct qede_dev *edev,
1794 struct qede_fastpath *fp,
1795 struct qede_tx_queue *txq, u8 rss_id, u16 sb_idx)
1797 dma_addr_t phys_table = qed_chain_get_pbl_phys(&txq->tx_pbl);
1798 u32 page_cnt = qed_chain_get_page_cnt(&txq->tx_pbl);
1799 struct qed_queue_start_common_params params;
1800 struct qed_txq_start_ret_params ret_params;
1803 memset(¶ms, 0, sizeof(params));
1804 memset(&ret_params, 0, sizeof(ret_params));
1806 /* Let the XDP queue share the queue-zone with one of the regular txq.
1807 * We don't really care about its coalescing.
1810 params.queue_id = QEDE_TXQ_XDP_TO_IDX(edev, txq);
1812 params.queue_id = txq->index;
1814 params.p_sb = fp->sb_info;
1815 params.sb_idx = sb_idx;
1817 rc = edev->ops->q_tx_start(edev->cdev, rss_id, ¶ms, phys_table,
1818 page_cnt, &ret_params);
1820 DP_ERR(edev, "Start TXQ #%d failed %d\n", txq->index, rc);
1824 txq->doorbell_addr = ret_params.p_doorbell;
1825 txq->handle = ret_params.p_handle;
1827 /* Determine the FW consumer address associated */
1828 txq->hw_cons_ptr = &fp->sb_info->sb_virt->pi_array[sb_idx];
1830 /* Prepare the doorbell parameters */
1831 SET_FIELD(txq->tx_db.data.params, ETH_DB_DATA_DEST, DB_DEST_XCM);
1832 SET_FIELD(txq->tx_db.data.params, ETH_DB_DATA_AGG_CMD, DB_AGG_CMD_SET);
1833 SET_FIELD(txq->tx_db.data.params, ETH_DB_DATA_AGG_VAL_SEL,
1834 DQ_XCM_ETH_TX_BD_PROD_CMD);
1835 txq->tx_db.data.agg_flags = DQ_XCM_ETH_DQ_CF_CMD;
1840 static int qede_start_queues(struct qede_dev *edev, bool clear_stats)
1842 int vlan_removal_en = 1;
1843 struct qed_dev *cdev = edev->cdev;
1844 struct qed_dev_info *qed_info = &edev->dev_info.common;
1845 struct qed_update_vport_params *vport_update_params;
1846 struct qed_queue_start_common_params q_params;
1847 struct qed_start_vport_params start = {0};
1850 if (!edev->num_queues) {
1852 "Cannot update V-VPORT as active as there are no Rx queues\n");
1856 vport_update_params = vzalloc(sizeof(*vport_update_params));
1857 if (!vport_update_params)
1860 start.handle_ptp_pkts = !!(edev->ptp);
1861 start.gro_enable = !edev->gro_disable;
1862 start.mtu = edev->ndev->mtu;
1864 start.drop_ttl0 = true;
1865 start.remove_inner_vlan = vlan_removal_en;
1866 start.clear_stats = clear_stats;
1868 rc = edev->ops->vport_start(cdev, &start);
1871 DP_ERR(edev, "Start V-PORT failed %d\n", rc);
1875 DP_VERBOSE(edev, NETIF_MSG_IFUP,
1876 "Start vport ramrod passed, vport_id = %d, MTU = %d, vlan_removal_en = %d\n",
1877 start.vport_id, edev->ndev->mtu + 0xe, vlan_removal_en);
1880 struct qede_fastpath *fp = &edev->fp_array[i];
1881 dma_addr_t p_phys_table;
1884 if (fp->type & QEDE_FASTPATH_RX) {
1885 struct qed_rxq_start_ret_params ret_params;
1886 struct qede_rx_queue *rxq = fp->rxq;
1889 memset(&ret_params, 0, sizeof(ret_params));
1890 memset(&q_params, 0, sizeof(q_params));
1891 q_params.queue_id = rxq->rxq_id;
1892 q_params.vport_id = 0;
1893 q_params.p_sb = fp->sb_info;
1894 q_params.sb_idx = RX_PI;
1897 qed_chain_get_pbl_phys(&rxq->rx_comp_ring);
1898 page_cnt = qed_chain_get_page_cnt(&rxq->rx_comp_ring);
1900 rc = edev->ops->q_rx_start(cdev, i, &q_params,
1902 rxq->rx_bd_ring.p_phys_addr,
1904 page_cnt, &ret_params);
1906 DP_ERR(edev, "Start RXQ #%d failed %d\n", i,
1911 /* Use the return parameters */
1912 rxq->hw_rxq_prod_addr = ret_params.p_prod;
1913 rxq->handle = ret_params.p_handle;
1915 val = &fp->sb_info->sb_virt->pi_array[RX_PI];
1916 rxq->hw_cons_ptr = val;
1918 qede_update_rx_prod(edev, rxq);
1921 if (fp->type & QEDE_FASTPATH_XDP) {
1922 rc = qede_start_txq(edev, fp, fp->xdp_tx, i, XDP_PI);
1926 fp->rxq->xdp_prog = bpf_prog_add(edev->xdp_prog, 1);
1927 if (IS_ERR(fp->rxq->xdp_prog)) {
1928 rc = PTR_ERR(fp->rxq->xdp_prog);
1929 fp->rxq->xdp_prog = NULL;
1934 if (fp->type & QEDE_FASTPATH_TX) {
1935 rc = qede_start_txq(edev, fp, fp->txq, i, TX_PI(0));
1941 /* Prepare and send the vport enable */
1942 vport_update_params->vport_id = start.vport_id;
1943 vport_update_params->update_vport_active_flg = 1;
1944 vport_update_params->vport_active_flg = 1;
1946 if ((qed_info->mf_mode == QED_MF_NPAR || pci_num_vf(edev->pdev)) &&
1947 qed_info->tx_switching) {
1948 vport_update_params->update_tx_switching_flg = 1;
1949 vport_update_params->tx_switching_flg = 1;
1952 qede_fill_rss_params(edev, &vport_update_params->rss_params,
1953 &vport_update_params->update_rss_flg);
1955 rc = edev->ops->vport_update(cdev, vport_update_params);
1957 DP_ERR(edev, "Update V-PORT failed %d\n", rc);
1960 vfree(vport_update_params);
1964 enum qede_unload_mode {
1968 static void qede_unload(struct qede_dev *edev, enum qede_unload_mode mode,
1971 struct qed_link_params link_params;
1974 DP_INFO(edev, "Starting qede unload\n");
1979 edev->state = QEDE_STATE_CLOSED;
1981 qede_rdma_dev_event_close(edev);
1984 netif_tx_disable(edev->ndev);
1985 netif_carrier_off(edev->ndev);
1987 /* Reset the link */
1988 memset(&link_params, 0, sizeof(link_params));
1989 link_params.link_up = false;
1990 edev->ops->common->set_link(edev->cdev, &link_params);
1991 rc = qede_stop_queues(edev);
1993 qede_sync_free_irqs(edev);
1997 DP_INFO(edev, "Stopped Queues\n");
1999 qede_vlan_mark_nonconfigured(edev);
2000 edev->ops->fastpath_stop(edev->cdev);
2002 if (!IS_VF(edev) && edev->dev_info.common.num_hwfns == 1) {
2003 qede_poll_for_freeing_arfs_filters(edev);
2004 qede_free_arfs(edev);
2007 /* Release the interrupts */
2008 qede_sync_free_irqs(edev);
2009 edev->ops->common->set_fp_int(edev->cdev, 0);
2011 qede_napi_disable_remove(edev);
2013 qede_free_mem_load(edev);
2014 qede_free_fp_array(edev);
2018 __qede_unlock(edev);
2019 DP_INFO(edev, "Ending qede unload\n");
2022 enum qede_load_mode {
2027 static int qede_load(struct qede_dev *edev, enum qede_load_mode mode,
2030 struct qed_link_params link_params;
2033 DP_INFO(edev, "Starting qede load\n");
2038 rc = qede_set_num_queues(edev);
2042 rc = qede_alloc_fp_array(edev);
2048 rc = qede_alloc_mem_load(edev);
2051 DP_INFO(edev, "Allocated %d Rx, %d Tx queues\n",
2052 QEDE_RSS_COUNT(edev), QEDE_TSS_COUNT(edev));
2054 rc = qede_set_real_num_queues(edev);
2058 if (!IS_VF(edev) && edev->dev_info.common.num_hwfns == 1) {
2059 rc = qede_alloc_arfs(edev);
2061 DP_NOTICE(edev, "aRFS memory allocation failed\n");
2064 qede_napi_add_enable(edev);
2065 DP_INFO(edev, "Napi added and enabled\n");
2067 rc = qede_setup_irqs(edev);
2070 DP_INFO(edev, "Setup IRQs succeeded\n");
2072 rc = qede_start_queues(edev, mode != QEDE_LOAD_RELOAD);
2075 DP_INFO(edev, "Start VPORT, RXQ and TXQ succeeded\n");
2077 /* Program un-configured VLANs */
2078 qede_configure_vlan_filters(edev);
2080 /* Ask for link-up using current configuration */
2081 memset(&link_params, 0, sizeof(link_params));
2082 link_params.link_up = true;
2083 edev->ops->common->set_link(edev->cdev, &link_params);
2085 edev->state = QEDE_STATE_OPEN;
2087 DP_INFO(edev, "Ending successfully qede load\n");
2091 qede_sync_free_irqs(edev);
2093 qede_napi_disable_remove(edev);
2095 qede_free_mem_load(edev);
2097 edev->ops->common->set_fp_int(edev->cdev, 0);
2098 qede_free_fp_array(edev);
2099 edev->num_queues = 0;
2100 edev->fp_num_tx = 0;
2101 edev->fp_num_rx = 0;
2104 __qede_unlock(edev);
2109 /* 'func' should be able to run between unload and reload assuming interface
2110 * is actually running, or afterwards in case it's currently DOWN.
2112 void qede_reload(struct qede_dev *edev,
2113 struct qede_reload_args *args, bool is_locked)
2118 /* Since qede_lock is held, internal state wouldn't change even
2119 * if netdev state would start transitioning. Check whether current
2120 * internal configuration indicates device is up, then reload.
2122 if (edev->state == QEDE_STATE_OPEN) {
2123 qede_unload(edev, QEDE_UNLOAD_NORMAL, true);
2125 args->func(edev, args);
2126 qede_load(edev, QEDE_LOAD_RELOAD, true);
2128 /* Since no one is going to do it for us, re-configure */
2129 qede_config_rx_mode(edev->ndev);
2131 args->func(edev, args);
2135 __qede_unlock(edev);
2138 /* called with rtnl_lock */
2139 static int qede_open(struct net_device *ndev)
2141 struct qede_dev *edev = netdev_priv(ndev);
2144 netif_carrier_off(ndev);
2146 edev->ops->common->set_power_state(edev->cdev, PCI_D0);
2148 rc = qede_load(edev, QEDE_LOAD_NORMAL, false);
2152 udp_tunnel_get_rx_info(ndev);
2154 edev->ops->common->update_drv_state(edev->cdev, true);
2159 static int qede_close(struct net_device *ndev)
2161 struct qede_dev *edev = netdev_priv(ndev);
2163 qede_unload(edev, QEDE_UNLOAD_NORMAL, false);
2165 edev->ops->common->update_drv_state(edev->cdev, false);
2170 static void qede_link_update(void *dev, struct qed_link_output *link)
2172 struct qede_dev *edev = dev;
2174 if (!netif_running(edev->ndev)) {
2175 DP_VERBOSE(edev, NETIF_MSG_LINK, "Interface is not running\n");
2179 if (link->link_up) {
2180 if (!netif_carrier_ok(edev->ndev)) {
2181 DP_NOTICE(edev, "Link is up\n");
2182 netif_tx_start_all_queues(edev->ndev);
2183 netif_carrier_on(edev->ndev);
2184 qede_rdma_dev_event_open(edev);
2187 if (netif_carrier_ok(edev->ndev)) {
2188 DP_NOTICE(edev, "Link is down\n");
2189 netif_tx_disable(edev->ndev);
2190 netif_carrier_off(edev->ndev);
2191 qede_rdma_dev_event_close(edev);