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/module.h>
33 #include <linux/pci.h>
34 #include <linux/version.h>
35 #include <linux/device.h>
36 #include <linux/netdevice.h>
37 #include <linux/etherdevice.h>
38 #include <linux/skbuff.h>
39 #include <linux/errno.h>
40 #include <linux/list.h>
41 #include <linux/string.h>
42 #include <linux/dma-mapping.h>
43 #include <linux/interrupt.h>
44 #include <asm/byteorder.h>
45 #include <asm/param.h>
47 #include <linux/netdev_features.h>
48 #include <linux/udp.h>
49 #include <linux/tcp.h>
50 #include <net/udp_tunnel.h>
54 #include <linux/if_ether.h>
55 #include <linux/if_vlan.h>
56 #include <linux/pkt_sched.h>
57 #include <linux/ethtool.h>
59 #include <linux/random.h>
60 #include <net/ip6_checksum.h>
61 #include <linux/bitops.h>
62 #include <linux/vmalloc.h>
66 static char version[] =
67 "QLogic FastLinQ 4xxxx Ethernet Driver qede " DRV_MODULE_VERSION "\n";
69 MODULE_DESCRIPTION("QLogic FastLinQ 4xxxx Ethernet Driver");
70 MODULE_LICENSE("GPL");
71 MODULE_VERSION(DRV_MODULE_VERSION);
74 module_param(debug, uint, 0);
75 MODULE_PARM_DESC(debug, " Default debug msglevel");
77 static const struct qed_eth_ops *qed_ops;
79 #define CHIP_NUM_57980S_40 0x1634
80 #define CHIP_NUM_57980S_10 0x1666
81 #define CHIP_NUM_57980S_MF 0x1636
82 #define CHIP_NUM_57980S_100 0x1644
83 #define CHIP_NUM_57980S_50 0x1654
84 #define CHIP_NUM_57980S_25 0x1656
85 #define CHIP_NUM_57980S_IOV 0x1664
86 #define CHIP_NUM_AH 0x8070
87 #define CHIP_NUM_AH_IOV 0x8090
89 #ifndef PCI_DEVICE_ID_NX2_57980E
90 #define PCI_DEVICE_ID_57980S_40 CHIP_NUM_57980S_40
91 #define PCI_DEVICE_ID_57980S_10 CHIP_NUM_57980S_10
92 #define PCI_DEVICE_ID_57980S_MF CHIP_NUM_57980S_MF
93 #define PCI_DEVICE_ID_57980S_100 CHIP_NUM_57980S_100
94 #define PCI_DEVICE_ID_57980S_50 CHIP_NUM_57980S_50
95 #define PCI_DEVICE_ID_57980S_25 CHIP_NUM_57980S_25
96 #define PCI_DEVICE_ID_57980S_IOV CHIP_NUM_57980S_IOV
97 #define PCI_DEVICE_ID_AH CHIP_NUM_AH
98 #define PCI_DEVICE_ID_AH_IOV CHIP_NUM_AH_IOV
102 enum qede_pci_private {
107 static const struct pci_device_id qede_pci_tbl[] = {
108 {PCI_VDEVICE(QLOGIC, PCI_DEVICE_ID_57980S_40), QEDE_PRIVATE_PF},
109 {PCI_VDEVICE(QLOGIC, PCI_DEVICE_ID_57980S_10), QEDE_PRIVATE_PF},
110 {PCI_VDEVICE(QLOGIC, PCI_DEVICE_ID_57980S_MF), QEDE_PRIVATE_PF},
111 {PCI_VDEVICE(QLOGIC, PCI_DEVICE_ID_57980S_100), QEDE_PRIVATE_PF},
112 {PCI_VDEVICE(QLOGIC, PCI_DEVICE_ID_57980S_50), QEDE_PRIVATE_PF},
113 {PCI_VDEVICE(QLOGIC, PCI_DEVICE_ID_57980S_25), QEDE_PRIVATE_PF},
114 #ifdef CONFIG_QED_SRIOV
115 {PCI_VDEVICE(QLOGIC, PCI_DEVICE_ID_57980S_IOV), QEDE_PRIVATE_VF},
117 {PCI_VDEVICE(QLOGIC, PCI_DEVICE_ID_AH), QEDE_PRIVATE_PF},
118 #ifdef CONFIG_QED_SRIOV
119 {PCI_VDEVICE(QLOGIC, PCI_DEVICE_ID_AH_IOV), QEDE_PRIVATE_VF},
124 MODULE_DEVICE_TABLE(pci, qede_pci_tbl);
126 static int qede_probe(struct pci_dev *pdev, const struct pci_device_id *id);
128 #define TX_TIMEOUT (5 * HZ)
130 /* Utilize last protocol index for XDP */
133 static void qede_remove(struct pci_dev *pdev);
134 static void qede_shutdown(struct pci_dev *pdev);
135 static void qede_link_update(void *dev, struct qed_link_output *link);
137 /* The qede lock is used to protect driver state change and driver flows that
140 void __qede_lock(struct qede_dev *edev)
142 mutex_lock(&edev->qede_lock);
145 void __qede_unlock(struct qede_dev *edev)
147 mutex_unlock(&edev->qede_lock);
150 #ifdef CONFIG_QED_SRIOV
151 static int qede_set_vf_vlan(struct net_device *ndev, int vf, u16 vlan, u8 qos,
154 struct qede_dev *edev = netdev_priv(ndev);
157 DP_NOTICE(edev, "Illegal vlan value %d\n", vlan);
161 if (vlan_proto != htons(ETH_P_8021Q))
162 return -EPROTONOSUPPORT;
164 DP_VERBOSE(edev, QED_MSG_IOV, "Setting Vlan 0x%04x to VF [%d]\n",
167 return edev->ops->iov->set_vlan(edev->cdev, vlan, vf);
170 static int qede_set_vf_mac(struct net_device *ndev, int vfidx, u8 *mac)
172 struct qede_dev *edev = netdev_priv(ndev);
174 DP_VERBOSE(edev, QED_MSG_IOV,
175 "Setting MAC %02x:%02x:%02x:%02x:%02x:%02x to VF [%d]\n",
176 mac[0], mac[1], mac[2], mac[3], mac[4], mac[5], vfidx);
178 if (!is_valid_ether_addr(mac)) {
179 DP_VERBOSE(edev, QED_MSG_IOV, "MAC address isn't valid\n");
183 return edev->ops->iov->set_mac(edev->cdev, mac, vfidx);
186 static int qede_sriov_configure(struct pci_dev *pdev, int num_vfs_param)
188 struct qede_dev *edev = netdev_priv(pci_get_drvdata(pdev));
189 struct qed_dev_info *qed_info = &edev->dev_info.common;
190 struct qed_update_vport_params *vport_params;
193 vport_params = vzalloc(sizeof(*vport_params));
196 DP_VERBOSE(edev, QED_MSG_IOV, "Requested %d VFs\n", num_vfs_param);
198 rc = edev->ops->iov->configure(edev->cdev, num_vfs_param);
200 /* Enable/Disable Tx switching for PF */
201 if ((rc == num_vfs_param) && netif_running(edev->ndev) &&
202 qed_info->mf_mode != QED_MF_NPAR && qed_info->tx_switching) {
203 vport_params->vport_id = 0;
204 vport_params->update_tx_switching_flg = 1;
205 vport_params->tx_switching_flg = num_vfs_param ? 1 : 0;
206 edev->ops->vport_update(edev->cdev, vport_params);
214 static struct pci_driver qede_pci_driver = {
216 .id_table = qede_pci_tbl,
218 .remove = qede_remove,
219 .shutdown = qede_shutdown,
220 #ifdef CONFIG_QED_SRIOV
221 .sriov_configure = qede_sriov_configure,
225 static struct qed_eth_cb_ops qede_ll_ops = {
227 #ifdef CONFIG_RFS_ACCEL
228 .arfs_filter_op = qede_arfs_filter_op,
230 .link_update = qede_link_update,
232 .force_mac = qede_force_mac,
233 .ports_update = qede_udp_ports_update,
236 static int qede_netdev_event(struct notifier_block *this, unsigned long event,
239 struct net_device *ndev = netdev_notifier_info_to_dev(ptr);
240 struct ethtool_drvinfo drvinfo;
241 struct qede_dev *edev;
243 if (event != NETDEV_CHANGENAME && event != NETDEV_CHANGEADDR)
246 /* Check whether this is a qede device */
247 if (!ndev || !ndev->ethtool_ops || !ndev->ethtool_ops->get_drvinfo)
250 memset(&drvinfo, 0, sizeof(drvinfo));
251 ndev->ethtool_ops->get_drvinfo(ndev, &drvinfo);
252 if (strcmp(drvinfo.driver, "qede"))
254 edev = netdev_priv(ndev);
257 case NETDEV_CHANGENAME:
258 /* Notify qed of the name change */
259 if (!edev->ops || !edev->ops->common)
261 edev->ops->common->set_name(edev->cdev, edev->ndev->name);
263 case NETDEV_CHANGEADDR:
264 edev = netdev_priv(ndev);
265 qede_rdma_event_changeaddr(edev);
273 static struct notifier_block qede_netdev_notifier = {
274 .notifier_call = qede_netdev_event,
278 int __init qede_init(void)
282 pr_info("qede_init: %s\n", version);
284 qed_ops = qed_get_eth_ops();
286 pr_notice("Failed to get qed ethtool operations\n");
290 /* Must register notifier before pci ops, since we might miss
291 * interface rename after pci probe and netdev registeration.
293 ret = register_netdevice_notifier(&qede_netdev_notifier);
295 pr_notice("Failed to register netdevice_notifier\n");
300 ret = pci_register_driver(&qede_pci_driver);
302 pr_notice("Failed to register driver\n");
303 unregister_netdevice_notifier(&qede_netdev_notifier);
311 static void __exit qede_cleanup(void)
313 if (debug & QED_LOG_INFO_MASK)
314 pr_info("qede_cleanup called\n");
316 unregister_netdevice_notifier(&qede_netdev_notifier);
317 pci_unregister_driver(&qede_pci_driver);
321 module_init(qede_init);
322 module_exit(qede_cleanup);
324 static int qede_open(struct net_device *ndev);
325 static int qede_close(struct net_device *ndev);
327 void qede_fill_by_demand_stats(struct qede_dev *edev)
329 struct qede_stats_common *p_common = &edev->stats.common;
330 struct qed_eth_stats stats;
332 edev->ops->get_vport_stats(edev->cdev, &stats);
334 p_common->no_buff_discards = stats.common.no_buff_discards;
335 p_common->packet_too_big_discard = stats.common.packet_too_big_discard;
336 p_common->ttl0_discard = stats.common.ttl0_discard;
337 p_common->rx_ucast_bytes = stats.common.rx_ucast_bytes;
338 p_common->rx_mcast_bytes = stats.common.rx_mcast_bytes;
339 p_common->rx_bcast_bytes = stats.common.rx_bcast_bytes;
340 p_common->rx_ucast_pkts = stats.common.rx_ucast_pkts;
341 p_common->rx_mcast_pkts = stats.common.rx_mcast_pkts;
342 p_common->rx_bcast_pkts = stats.common.rx_bcast_pkts;
343 p_common->mftag_filter_discards = stats.common.mftag_filter_discards;
344 p_common->mac_filter_discards = stats.common.mac_filter_discards;
346 p_common->tx_ucast_bytes = stats.common.tx_ucast_bytes;
347 p_common->tx_mcast_bytes = stats.common.tx_mcast_bytes;
348 p_common->tx_bcast_bytes = stats.common.tx_bcast_bytes;
349 p_common->tx_ucast_pkts = stats.common.tx_ucast_pkts;
350 p_common->tx_mcast_pkts = stats.common.tx_mcast_pkts;
351 p_common->tx_bcast_pkts = stats.common.tx_bcast_pkts;
352 p_common->tx_err_drop_pkts = stats.common.tx_err_drop_pkts;
353 p_common->coalesced_pkts = stats.common.tpa_coalesced_pkts;
354 p_common->coalesced_events = stats.common.tpa_coalesced_events;
355 p_common->coalesced_aborts_num = stats.common.tpa_aborts_num;
356 p_common->non_coalesced_pkts = stats.common.tpa_not_coalesced_pkts;
357 p_common->coalesced_bytes = stats.common.tpa_coalesced_bytes;
359 p_common->rx_64_byte_packets = stats.common.rx_64_byte_packets;
360 p_common->rx_65_to_127_byte_packets =
361 stats.common.rx_65_to_127_byte_packets;
362 p_common->rx_128_to_255_byte_packets =
363 stats.common.rx_128_to_255_byte_packets;
364 p_common->rx_256_to_511_byte_packets =
365 stats.common.rx_256_to_511_byte_packets;
366 p_common->rx_512_to_1023_byte_packets =
367 stats.common.rx_512_to_1023_byte_packets;
368 p_common->rx_1024_to_1518_byte_packets =
369 stats.common.rx_1024_to_1518_byte_packets;
370 p_common->rx_crc_errors = stats.common.rx_crc_errors;
371 p_common->rx_mac_crtl_frames = stats.common.rx_mac_crtl_frames;
372 p_common->rx_pause_frames = stats.common.rx_pause_frames;
373 p_common->rx_pfc_frames = stats.common.rx_pfc_frames;
374 p_common->rx_align_errors = stats.common.rx_align_errors;
375 p_common->rx_carrier_errors = stats.common.rx_carrier_errors;
376 p_common->rx_oversize_packets = stats.common.rx_oversize_packets;
377 p_common->rx_jabbers = stats.common.rx_jabbers;
378 p_common->rx_undersize_packets = stats.common.rx_undersize_packets;
379 p_common->rx_fragments = stats.common.rx_fragments;
380 p_common->tx_64_byte_packets = stats.common.tx_64_byte_packets;
381 p_common->tx_65_to_127_byte_packets =
382 stats.common.tx_65_to_127_byte_packets;
383 p_common->tx_128_to_255_byte_packets =
384 stats.common.tx_128_to_255_byte_packets;
385 p_common->tx_256_to_511_byte_packets =
386 stats.common.tx_256_to_511_byte_packets;
387 p_common->tx_512_to_1023_byte_packets =
388 stats.common.tx_512_to_1023_byte_packets;
389 p_common->tx_1024_to_1518_byte_packets =
390 stats.common.tx_1024_to_1518_byte_packets;
391 p_common->tx_pause_frames = stats.common.tx_pause_frames;
392 p_common->tx_pfc_frames = stats.common.tx_pfc_frames;
393 p_common->brb_truncates = stats.common.brb_truncates;
394 p_common->brb_discards = stats.common.brb_discards;
395 p_common->tx_mac_ctrl_frames = stats.common.tx_mac_ctrl_frames;
397 if (QEDE_IS_BB(edev)) {
398 struct qede_stats_bb *p_bb = &edev->stats.bb;
400 p_bb->rx_1519_to_1522_byte_packets =
401 stats.bb.rx_1519_to_1522_byte_packets;
402 p_bb->rx_1519_to_2047_byte_packets =
403 stats.bb.rx_1519_to_2047_byte_packets;
404 p_bb->rx_2048_to_4095_byte_packets =
405 stats.bb.rx_2048_to_4095_byte_packets;
406 p_bb->rx_4096_to_9216_byte_packets =
407 stats.bb.rx_4096_to_9216_byte_packets;
408 p_bb->rx_9217_to_16383_byte_packets =
409 stats.bb.rx_9217_to_16383_byte_packets;
410 p_bb->tx_1519_to_2047_byte_packets =
411 stats.bb.tx_1519_to_2047_byte_packets;
412 p_bb->tx_2048_to_4095_byte_packets =
413 stats.bb.tx_2048_to_4095_byte_packets;
414 p_bb->tx_4096_to_9216_byte_packets =
415 stats.bb.tx_4096_to_9216_byte_packets;
416 p_bb->tx_9217_to_16383_byte_packets =
417 stats.bb.tx_9217_to_16383_byte_packets;
418 p_bb->tx_lpi_entry_count = stats.bb.tx_lpi_entry_count;
419 p_bb->tx_total_collisions = stats.bb.tx_total_collisions;
421 struct qede_stats_ah *p_ah = &edev->stats.ah;
423 p_ah->rx_1519_to_max_byte_packets =
424 stats.ah.rx_1519_to_max_byte_packets;
425 p_ah->tx_1519_to_max_byte_packets =
426 stats.ah.tx_1519_to_max_byte_packets;
430 static void qede_get_stats64(struct net_device *dev,
431 struct rtnl_link_stats64 *stats)
433 struct qede_dev *edev = netdev_priv(dev);
434 struct qede_stats_common *p_common;
436 qede_fill_by_demand_stats(edev);
437 p_common = &edev->stats.common;
439 stats->rx_packets = p_common->rx_ucast_pkts + p_common->rx_mcast_pkts +
440 p_common->rx_bcast_pkts;
441 stats->tx_packets = p_common->tx_ucast_pkts + p_common->tx_mcast_pkts +
442 p_common->tx_bcast_pkts;
444 stats->rx_bytes = p_common->rx_ucast_bytes + p_common->rx_mcast_bytes +
445 p_common->rx_bcast_bytes;
446 stats->tx_bytes = p_common->tx_ucast_bytes + p_common->tx_mcast_bytes +
447 p_common->tx_bcast_bytes;
449 stats->tx_errors = p_common->tx_err_drop_pkts;
450 stats->multicast = p_common->rx_mcast_pkts + p_common->rx_bcast_pkts;
452 stats->rx_fifo_errors = p_common->no_buff_discards;
454 if (QEDE_IS_BB(edev))
455 stats->collisions = edev->stats.bb.tx_total_collisions;
456 stats->rx_crc_errors = p_common->rx_crc_errors;
457 stats->rx_frame_errors = p_common->rx_align_errors;
460 #ifdef CONFIG_QED_SRIOV
461 static int qede_get_vf_config(struct net_device *dev, int vfidx,
462 struct ifla_vf_info *ivi)
464 struct qede_dev *edev = netdev_priv(dev);
469 return edev->ops->iov->get_config(edev->cdev, vfidx, ivi);
472 static int qede_set_vf_rate(struct net_device *dev, int vfidx,
473 int min_tx_rate, int max_tx_rate)
475 struct qede_dev *edev = netdev_priv(dev);
477 return edev->ops->iov->set_rate(edev->cdev, vfidx, min_tx_rate,
481 static int qede_set_vf_spoofchk(struct net_device *dev, int vfidx, bool val)
483 struct qede_dev *edev = netdev_priv(dev);
488 return edev->ops->iov->set_spoof(edev->cdev, vfidx, val);
491 static int qede_set_vf_link_state(struct net_device *dev, int vfidx,
494 struct qede_dev *edev = netdev_priv(dev);
499 return edev->ops->iov->set_link_state(edev->cdev, vfidx, link_state);
502 static int qede_set_vf_trust(struct net_device *dev, int vfidx, bool setting)
504 struct qede_dev *edev = netdev_priv(dev);
509 return edev->ops->iov->set_trust(edev->cdev, vfidx, setting);
513 static int qede_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd)
515 struct qede_dev *edev = netdev_priv(dev);
517 if (!netif_running(dev))
522 return qede_ptp_hw_ts(edev, ifr);
524 DP_VERBOSE(edev, QED_MSG_DEBUG,
525 "default IOCTL cmd 0x%x\n", cmd);
532 static const struct net_device_ops qede_netdev_ops = {
533 .ndo_open = qede_open,
534 .ndo_stop = qede_close,
535 .ndo_start_xmit = qede_start_xmit,
536 .ndo_set_rx_mode = qede_set_rx_mode,
537 .ndo_set_mac_address = qede_set_mac_addr,
538 .ndo_validate_addr = eth_validate_addr,
539 .ndo_change_mtu = qede_change_mtu,
540 .ndo_do_ioctl = qede_ioctl,
541 #ifdef CONFIG_QED_SRIOV
542 .ndo_set_vf_mac = qede_set_vf_mac,
543 .ndo_set_vf_vlan = qede_set_vf_vlan,
544 .ndo_set_vf_trust = qede_set_vf_trust,
546 .ndo_vlan_rx_add_vid = qede_vlan_rx_add_vid,
547 .ndo_vlan_rx_kill_vid = qede_vlan_rx_kill_vid,
548 .ndo_set_features = qede_set_features,
549 .ndo_get_stats64 = qede_get_stats64,
550 #ifdef CONFIG_QED_SRIOV
551 .ndo_set_vf_link_state = qede_set_vf_link_state,
552 .ndo_set_vf_spoofchk = qede_set_vf_spoofchk,
553 .ndo_get_vf_config = qede_get_vf_config,
554 .ndo_set_vf_rate = qede_set_vf_rate,
556 .ndo_udp_tunnel_add = qede_udp_tunnel_add,
557 .ndo_udp_tunnel_del = qede_udp_tunnel_del,
558 .ndo_features_check = qede_features_check,
560 #ifdef CONFIG_RFS_ACCEL
561 .ndo_rx_flow_steer = qede_rx_flow_steer,
565 static const struct net_device_ops qede_netdev_vf_ops = {
566 .ndo_open = qede_open,
567 .ndo_stop = qede_close,
568 .ndo_start_xmit = qede_start_xmit,
569 .ndo_set_rx_mode = qede_set_rx_mode,
570 .ndo_set_mac_address = qede_set_mac_addr,
571 .ndo_validate_addr = eth_validate_addr,
572 .ndo_change_mtu = qede_change_mtu,
573 .ndo_vlan_rx_add_vid = qede_vlan_rx_add_vid,
574 .ndo_vlan_rx_kill_vid = qede_vlan_rx_kill_vid,
575 .ndo_set_features = qede_set_features,
576 .ndo_get_stats64 = qede_get_stats64,
577 .ndo_udp_tunnel_add = qede_udp_tunnel_add,
578 .ndo_udp_tunnel_del = qede_udp_tunnel_del,
579 .ndo_features_check = qede_features_check,
582 static const struct net_device_ops qede_netdev_vf_xdp_ops = {
583 .ndo_open = qede_open,
584 .ndo_stop = qede_close,
585 .ndo_start_xmit = qede_start_xmit,
586 .ndo_set_rx_mode = qede_set_rx_mode,
587 .ndo_set_mac_address = qede_set_mac_addr,
588 .ndo_validate_addr = eth_validate_addr,
589 .ndo_change_mtu = qede_change_mtu,
590 .ndo_vlan_rx_add_vid = qede_vlan_rx_add_vid,
591 .ndo_vlan_rx_kill_vid = qede_vlan_rx_kill_vid,
592 .ndo_set_features = qede_set_features,
593 .ndo_get_stats64 = qede_get_stats64,
594 .ndo_udp_tunnel_add = qede_udp_tunnel_add,
595 .ndo_udp_tunnel_del = qede_udp_tunnel_del,
596 .ndo_features_check = qede_features_check,
600 /* -------------------------------------------------------------------------
601 * START OF PROBE / REMOVE
602 * -------------------------------------------------------------------------
605 static struct qede_dev *qede_alloc_etherdev(struct qed_dev *cdev,
606 struct pci_dev *pdev,
607 struct qed_dev_eth_info *info,
608 u32 dp_module, u8 dp_level)
610 struct net_device *ndev;
611 struct qede_dev *edev;
613 ndev = alloc_etherdev_mqs(sizeof(*edev),
614 info->num_queues, info->num_queues);
616 pr_err("etherdev allocation failed\n");
620 edev = netdev_priv(ndev);
624 edev->dp_module = dp_module;
625 edev->dp_level = dp_level;
627 edev->q_num_rx_buffers = NUM_RX_BDS_DEF;
628 edev->q_num_tx_buffers = NUM_TX_BDS_DEF;
630 DP_INFO(edev, "Allocated netdev with %d tx queues and %d rx queues\n",
631 info->num_queues, info->num_queues);
633 SET_NETDEV_DEV(ndev, &pdev->dev);
635 memset(&edev->stats, 0, sizeof(edev->stats));
636 memcpy(&edev->dev_info, info, sizeof(*info));
638 /* As ethtool doesn't have the ability to show WoL behavior as
639 * 'default', if device supports it declare it's enabled.
641 if (edev->dev_info.common.wol_support)
642 edev->wol_enabled = true;
644 INIT_LIST_HEAD(&edev->vlan_list);
649 static void qede_init_ndev(struct qede_dev *edev)
651 struct net_device *ndev = edev->ndev;
652 struct pci_dev *pdev = edev->pdev;
653 bool udp_tunnel_enable = false;
654 netdev_features_t hw_features;
656 pci_set_drvdata(pdev, ndev);
658 ndev->mem_start = edev->dev_info.common.pci_mem_start;
659 ndev->base_addr = ndev->mem_start;
660 ndev->mem_end = edev->dev_info.common.pci_mem_end;
661 ndev->irq = edev->dev_info.common.pci_irq;
663 ndev->watchdog_timeo = TX_TIMEOUT;
666 if (edev->dev_info.xdp_supported)
667 ndev->netdev_ops = &qede_netdev_vf_xdp_ops;
669 ndev->netdev_ops = &qede_netdev_vf_ops;
671 ndev->netdev_ops = &qede_netdev_ops;
674 qede_set_ethtool_ops(ndev);
676 ndev->priv_flags |= IFF_UNICAST_FLT;
678 /* user-changeble features */
679 hw_features = NETIF_F_GRO | NETIF_F_SG |
680 NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM |
681 NETIF_F_TSO | NETIF_F_TSO6;
683 if (!IS_VF(edev) && edev->dev_info.common.num_hwfns == 1)
684 hw_features |= NETIF_F_NTUPLE;
686 if (edev->dev_info.common.vxlan_enable ||
687 edev->dev_info.common.geneve_enable)
688 udp_tunnel_enable = true;
690 if (udp_tunnel_enable || edev->dev_info.common.gre_enable) {
691 hw_features |= NETIF_F_TSO_ECN;
692 ndev->hw_enc_features = NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM |
693 NETIF_F_SG | NETIF_F_TSO |
694 NETIF_F_TSO_ECN | NETIF_F_TSO6 |
698 if (udp_tunnel_enable) {
699 hw_features |= (NETIF_F_GSO_UDP_TUNNEL |
700 NETIF_F_GSO_UDP_TUNNEL_CSUM);
701 ndev->hw_enc_features |= (NETIF_F_GSO_UDP_TUNNEL |
702 NETIF_F_GSO_UDP_TUNNEL_CSUM);
705 if (edev->dev_info.common.gre_enable) {
706 hw_features |= (NETIF_F_GSO_GRE | NETIF_F_GSO_GRE_CSUM);
707 ndev->hw_enc_features |= (NETIF_F_GSO_GRE |
708 NETIF_F_GSO_GRE_CSUM);
711 ndev->vlan_features = hw_features | NETIF_F_RXHASH | NETIF_F_RXCSUM |
713 ndev->features = hw_features | NETIF_F_RXHASH | NETIF_F_RXCSUM |
714 NETIF_F_HW_VLAN_CTAG_RX | NETIF_F_HIGHDMA |
715 NETIF_F_HW_VLAN_CTAG_FILTER | NETIF_F_HW_VLAN_CTAG_TX;
717 ndev->hw_features = hw_features;
719 /* MTU range: 46 - 9600 */
720 ndev->min_mtu = ETH_ZLEN - ETH_HLEN;
721 ndev->max_mtu = QEDE_MAX_JUMBO_PACKET_SIZE;
723 /* Set network device HW mac */
724 ether_addr_copy(edev->ndev->dev_addr, edev->dev_info.common.hw_mac);
726 ndev->mtu = edev->dev_info.common.mtu;
729 /* This function converts from 32b param to two params of level and module
730 * Input 32b decoding:
731 * b31 - enable all NOTICE prints. NOTICE prints are for deviation from the
732 * 'happy' flow, e.g. memory allocation failed.
733 * b30 - enable all INFO prints. INFO prints are for major steps in the flow
734 * and provide important parameters.
735 * b29-b0 - per-module bitmap, where each bit enables VERBOSE prints of that
736 * module. VERBOSE prints are for tracking the specific flow in low level.
738 * Notice that the level should be that of the lowest required logs.
740 void qede_config_debug(uint debug, u32 *p_dp_module, u8 *p_dp_level)
742 *p_dp_level = QED_LEVEL_NOTICE;
745 if (debug & QED_LOG_VERBOSE_MASK) {
746 *p_dp_level = QED_LEVEL_VERBOSE;
747 *p_dp_module = (debug & 0x3FFFFFFF);
748 } else if (debug & QED_LOG_INFO_MASK) {
749 *p_dp_level = QED_LEVEL_INFO;
750 } else if (debug & QED_LOG_NOTICE_MASK) {
751 *p_dp_level = QED_LEVEL_NOTICE;
755 static void qede_free_fp_array(struct qede_dev *edev)
757 if (edev->fp_array) {
758 struct qede_fastpath *fp;
762 fp = &edev->fp_array[i];
769 kfree(edev->fp_array);
772 edev->num_queues = 0;
777 static int qede_alloc_fp_array(struct qede_dev *edev)
779 u8 fp_combined, fp_rx = edev->fp_num_rx;
780 struct qede_fastpath *fp;
783 edev->fp_array = kcalloc(QEDE_QUEUE_CNT(edev),
784 sizeof(*edev->fp_array), GFP_KERNEL);
785 if (!edev->fp_array) {
786 DP_NOTICE(edev, "fp array allocation failed\n");
790 fp_combined = QEDE_QUEUE_CNT(edev) - fp_rx - edev->fp_num_tx;
792 /* Allocate the FP elements for Rx queues followed by combined and then
793 * the Tx. This ordering should be maintained so that the respective
794 * queues (Rx or Tx) will be together in the fastpath array and the
795 * associated ids will be sequential.
798 fp = &edev->fp_array[i];
800 fp->sb_info = kzalloc(sizeof(*fp->sb_info), GFP_KERNEL);
802 DP_NOTICE(edev, "sb info struct allocation failed\n");
807 fp->type = QEDE_FASTPATH_RX;
809 } else if (fp_combined) {
810 fp->type = QEDE_FASTPATH_COMBINED;
813 fp->type = QEDE_FASTPATH_TX;
816 if (fp->type & QEDE_FASTPATH_TX) {
817 fp->txq = kzalloc(sizeof(*fp->txq), GFP_KERNEL);
822 if (fp->type & QEDE_FASTPATH_RX) {
823 fp->rxq = kzalloc(sizeof(*fp->rxq), GFP_KERNEL);
827 if (edev->xdp_prog) {
828 fp->xdp_tx = kzalloc(sizeof(*fp->xdp_tx),
832 fp->type |= QEDE_FASTPATH_XDP;
839 qede_free_fp_array(edev);
843 static void qede_sp_task(struct work_struct *work)
845 struct qede_dev *edev = container_of(work, struct qede_dev,
850 if (test_and_clear_bit(QEDE_SP_RX_MODE, &edev->sp_flags))
851 if (edev->state == QEDE_STATE_OPEN)
852 qede_config_rx_mode(edev->ndev);
854 #ifdef CONFIG_RFS_ACCEL
855 if (test_and_clear_bit(QEDE_SP_ARFS_CONFIG, &edev->sp_flags)) {
856 if (edev->state == QEDE_STATE_OPEN)
857 qede_process_arfs_filters(edev, false);
863 static void qede_update_pf_params(struct qed_dev *cdev)
865 struct qed_pf_params pf_params;
867 /* 64 rx + 64 tx + 64 XDP */
868 memset(&pf_params, 0, sizeof(struct qed_pf_params));
869 pf_params.eth_pf_params.num_cons = (MAX_SB_PER_PF_MIMD - 1) * 3;
871 /* Same for VFs - make sure they'll have sufficient connections
872 * to support XDP Tx queues.
874 pf_params.eth_pf_params.num_vf_cons = 48;
876 pf_params.eth_pf_params.num_arfs_filters = QEDE_RFS_MAX_FLTR;
877 qed_ops->common->update_pf_params(cdev, &pf_params);
880 #define QEDE_FW_VER_STR_SIZE 80
882 static void qede_log_probe(struct qede_dev *edev)
884 struct qed_dev_info *p_dev_info = &edev->dev_info.common;
885 u8 buf[QEDE_FW_VER_STR_SIZE];
888 snprintf(buf, QEDE_FW_VER_STR_SIZE,
889 "Storm FW %d.%d.%d.%d, Management FW %d.%d.%d.%d",
890 p_dev_info->fw_major, p_dev_info->fw_minor, p_dev_info->fw_rev,
892 (p_dev_info->mfw_rev & QED_MFW_VERSION_3_MASK) >>
893 QED_MFW_VERSION_3_OFFSET,
894 (p_dev_info->mfw_rev & QED_MFW_VERSION_2_MASK) >>
895 QED_MFW_VERSION_2_OFFSET,
896 (p_dev_info->mfw_rev & QED_MFW_VERSION_1_MASK) >>
897 QED_MFW_VERSION_1_OFFSET,
898 (p_dev_info->mfw_rev & QED_MFW_VERSION_0_MASK) >>
899 QED_MFW_VERSION_0_OFFSET);
901 left_size = QEDE_FW_VER_STR_SIZE - strlen(buf);
902 if (p_dev_info->mbi_version && left_size)
903 snprintf(buf + strlen(buf), left_size,
905 (p_dev_info->mbi_version & QED_MBI_VERSION_2_MASK) >>
906 QED_MBI_VERSION_2_OFFSET,
907 (p_dev_info->mbi_version & QED_MBI_VERSION_1_MASK) >>
908 QED_MBI_VERSION_1_OFFSET,
909 (p_dev_info->mbi_version & QED_MBI_VERSION_0_MASK) >>
910 QED_MBI_VERSION_0_OFFSET);
912 pr_info("qede %02x:%02x.%02x: %s [%s]\n", edev->pdev->bus->number,
913 PCI_SLOT(edev->pdev->devfn), PCI_FUNC(edev->pdev->devfn),
914 buf, edev->ndev->name);
917 enum qede_probe_mode {
921 static int __qede_probe(struct pci_dev *pdev, u32 dp_module, u8 dp_level,
922 bool is_vf, enum qede_probe_mode mode)
924 struct qed_probe_params probe_params;
925 struct qed_slowpath_params sp_params;
926 struct qed_dev_eth_info dev_info;
927 struct qede_dev *edev;
928 struct qed_dev *cdev;
931 if (unlikely(dp_level & QED_LEVEL_INFO))
932 pr_notice("Starting qede probe\n");
934 memset(&probe_params, 0, sizeof(probe_params));
935 probe_params.protocol = QED_PROTOCOL_ETH;
936 probe_params.dp_module = dp_module;
937 probe_params.dp_level = dp_level;
938 probe_params.is_vf = is_vf;
939 cdev = qed_ops->common->probe(pdev, &probe_params);
945 qede_update_pf_params(cdev);
947 /* Start the Slowpath-process */
948 memset(&sp_params, 0, sizeof(sp_params));
949 sp_params.int_mode = QED_INT_MODE_MSIX;
950 sp_params.drv_major = QEDE_MAJOR_VERSION;
951 sp_params.drv_minor = QEDE_MINOR_VERSION;
952 sp_params.drv_rev = QEDE_REVISION_VERSION;
953 sp_params.drv_eng = QEDE_ENGINEERING_VERSION;
954 strlcpy(sp_params.name, "qede LAN", QED_DRV_VER_STR_SIZE);
955 rc = qed_ops->common->slowpath_start(cdev, &sp_params);
957 pr_notice("Cannot start slowpath\n");
961 /* Learn information crucial for qede to progress */
962 rc = qed_ops->fill_dev_info(cdev, &dev_info);
966 edev = qede_alloc_etherdev(cdev, pdev, &dev_info, dp_module,
974 edev->flags |= QEDE_FLAG_IS_VF;
976 qede_init_ndev(edev);
978 rc = qede_rdma_dev_add(edev);
982 /* Prepare the lock prior to the registeration of the netdev,
983 * as once it's registered we might reach flows requiring it
984 * [it's even possible to reach a flow needing it directly
985 * from there, although it's unlikely].
987 INIT_DELAYED_WORK(&edev->sp_task, qede_sp_task);
988 mutex_init(&edev->qede_lock);
989 rc = register_netdev(edev->ndev);
991 DP_NOTICE(edev, "Cannot register net-device\n");
995 edev->ops->common->set_name(cdev, edev->ndev->name);
997 /* PTP not supported on VFs */
999 qede_ptp_enable(edev, true);
1001 edev->ops->register_ops(cdev, &qede_ll_ops, edev);
1005 qede_set_dcbnl_ops(edev->ndev);
1008 edev->rx_copybreak = QEDE_RX_HDR_SIZE;
1010 qede_log_probe(edev);
1014 qede_rdma_dev_remove(edev);
1016 free_netdev(edev->ndev);
1018 qed_ops->common->slowpath_stop(cdev);
1020 qed_ops->common->remove(cdev);
1025 static int qede_probe(struct pci_dev *pdev, const struct pci_device_id *id)
1031 switch ((enum qede_pci_private)id->driver_data) {
1032 case QEDE_PRIVATE_VF:
1033 if (debug & QED_LOG_VERBOSE_MASK)
1034 dev_err(&pdev->dev, "Probing a VF\n");
1038 if (debug & QED_LOG_VERBOSE_MASK)
1039 dev_err(&pdev->dev, "Probing a PF\n");
1042 qede_config_debug(debug, &dp_module, &dp_level);
1044 return __qede_probe(pdev, dp_module, dp_level, is_vf,
1048 enum qede_remove_mode {
1052 static void __qede_remove(struct pci_dev *pdev, enum qede_remove_mode mode)
1054 struct net_device *ndev = pci_get_drvdata(pdev);
1055 struct qede_dev *edev = netdev_priv(ndev);
1056 struct qed_dev *cdev = edev->cdev;
1058 DP_INFO(edev, "Starting qede_remove\n");
1060 unregister_netdev(ndev);
1061 cancel_delayed_work_sync(&edev->sp_task);
1063 qede_ptp_disable(edev);
1065 qede_rdma_dev_remove(edev);
1067 edev->ops->common->set_power_state(cdev, PCI_D0);
1069 pci_set_drvdata(pdev, NULL);
1071 /* Release edev's reference to XDP's bpf if such exist */
1073 bpf_prog_put(edev->xdp_prog);
1075 /* Use global ops since we've freed edev */
1076 qed_ops->common->slowpath_stop(cdev);
1077 if (system_state == SYSTEM_POWER_OFF)
1079 qed_ops->common->remove(cdev);
1081 /* Since this can happen out-of-sync with other flows,
1082 * don't release the netdevice until after slowpath stop
1083 * has been called to guarantee various other contexts
1084 * [e.g., QED register callbacks] won't break anything when
1085 * accessing the netdevice.
1089 dev_info(&pdev->dev, "Ending qede_remove successfully\n");
1092 static void qede_remove(struct pci_dev *pdev)
1094 __qede_remove(pdev, QEDE_REMOVE_NORMAL);
1097 static void qede_shutdown(struct pci_dev *pdev)
1099 __qede_remove(pdev, QEDE_REMOVE_NORMAL);
1102 /* -------------------------------------------------------------------------
1103 * START OF LOAD / UNLOAD
1104 * -------------------------------------------------------------------------
1107 static int qede_set_num_queues(struct qede_dev *edev)
1112 /* Setup queues according to possible resources*/
1113 if (edev->req_queues)
1114 rss_num = edev->req_queues;
1116 rss_num = netif_get_num_default_rss_queues() *
1117 edev->dev_info.common.num_hwfns;
1119 rss_num = min_t(u16, QEDE_MAX_RSS_CNT(edev), rss_num);
1121 rc = edev->ops->common->set_fp_int(edev->cdev, rss_num);
1123 /* Managed to request interrupts for our queues */
1124 edev->num_queues = rc;
1125 DP_INFO(edev, "Managed %d [of %d] RSS queues\n",
1126 QEDE_QUEUE_CNT(edev), rss_num);
1130 edev->fp_num_tx = edev->req_num_tx;
1131 edev->fp_num_rx = edev->req_num_rx;
1136 static void qede_free_mem_sb(struct qede_dev *edev, struct qed_sb_info *sb_info,
1139 if (sb_info->sb_virt) {
1140 edev->ops->common->sb_release(edev->cdev, sb_info, sb_id);
1141 dma_free_coherent(&edev->pdev->dev, sizeof(*sb_info->sb_virt),
1142 (void *)sb_info->sb_virt, sb_info->sb_phys);
1143 memset(sb_info, 0, sizeof(*sb_info));
1147 /* This function allocates fast-path status block memory */
1148 static int qede_alloc_mem_sb(struct qede_dev *edev,
1149 struct qed_sb_info *sb_info, u16 sb_id)
1151 struct status_block *sb_virt;
1155 sb_virt = dma_alloc_coherent(&edev->pdev->dev,
1156 sizeof(*sb_virt), &sb_phys, GFP_KERNEL);
1158 DP_ERR(edev, "Status block allocation failed\n");
1162 rc = edev->ops->common->sb_init(edev->cdev, sb_info,
1163 sb_virt, sb_phys, sb_id,
1164 QED_SB_TYPE_L2_QUEUE);
1166 DP_ERR(edev, "Status block initialization failed\n");
1167 dma_free_coherent(&edev->pdev->dev, sizeof(*sb_virt),
1175 static void qede_free_rx_buffers(struct qede_dev *edev,
1176 struct qede_rx_queue *rxq)
1180 for (i = rxq->sw_rx_cons; i != rxq->sw_rx_prod; i++) {
1181 struct sw_rx_data *rx_buf;
1184 rx_buf = &rxq->sw_rx_ring[i & NUM_RX_BDS_MAX];
1185 data = rx_buf->data;
1187 dma_unmap_page(&edev->pdev->dev,
1188 rx_buf->mapping, PAGE_SIZE, rxq->data_direction);
1190 rx_buf->data = NULL;
1195 static void qede_free_sge_mem(struct qede_dev *edev, struct qede_rx_queue *rxq)
1199 if (edev->gro_disable)
1202 for (i = 0; i < ETH_TPA_MAX_AGGS_NUM; i++) {
1203 struct qede_agg_info *tpa_info = &rxq->tpa_info[i];
1204 struct sw_rx_data *replace_buf = &tpa_info->buffer;
1206 if (replace_buf->data) {
1207 dma_unmap_page(&edev->pdev->dev,
1208 replace_buf->mapping,
1209 PAGE_SIZE, DMA_FROM_DEVICE);
1210 __free_page(replace_buf->data);
1215 static void qede_free_mem_rxq(struct qede_dev *edev, struct qede_rx_queue *rxq)
1217 qede_free_sge_mem(edev, rxq);
1219 /* Free rx buffers */
1220 qede_free_rx_buffers(edev, rxq);
1222 /* Free the parallel SW ring */
1223 kfree(rxq->sw_rx_ring);
1225 /* Free the real RQ ring used by FW */
1226 edev->ops->common->chain_free(edev->cdev, &rxq->rx_bd_ring);
1227 edev->ops->common->chain_free(edev->cdev, &rxq->rx_comp_ring);
1230 static int qede_alloc_sge_mem(struct qede_dev *edev, struct qede_rx_queue *rxq)
1235 /* Don't perform FW aggregations in case of XDP */
1237 edev->gro_disable = 1;
1239 if (edev->gro_disable)
1242 if (edev->ndev->mtu > PAGE_SIZE) {
1243 edev->gro_disable = 1;
1247 for (i = 0; i < ETH_TPA_MAX_AGGS_NUM; i++) {
1248 struct qede_agg_info *tpa_info = &rxq->tpa_info[i];
1249 struct sw_rx_data *replace_buf = &tpa_info->buffer;
1251 replace_buf->data = alloc_pages(GFP_ATOMIC, 0);
1252 if (unlikely(!replace_buf->data)) {
1254 "Failed to allocate TPA skb pool [replacement buffer]\n");
1258 mapping = dma_map_page(&edev->pdev->dev, replace_buf->data, 0,
1259 PAGE_SIZE, DMA_FROM_DEVICE);
1260 if (unlikely(dma_mapping_error(&edev->pdev->dev, mapping))) {
1262 "Failed to map TPA replacement buffer\n");
1266 replace_buf->mapping = mapping;
1267 tpa_info->buffer.page_offset = 0;
1268 tpa_info->buffer_mapping = mapping;
1269 tpa_info->state = QEDE_AGG_STATE_NONE;
1274 qede_free_sge_mem(edev, rxq);
1275 edev->gro_disable = 1;
1279 /* This function allocates all memory needed per Rx queue */
1280 static int qede_alloc_mem_rxq(struct qede_dev *edev, struct qede_rx_queue *rxq)
1284 rxq->num_rx_buffers = edev->q_num_rx_buffers;
1286 rxq->rx_buf_size = NET_IP_ALIGN + ETH_OVERHEAD + edev->ndev->mtu;
1287 rxq->rx_headroom = edev->xdp_prog ? XDP_PACKET_HEADROOM : 0;
1289 /* Make sure that the headroom and payload fit in a single page */
1290 if (rxq->rx_buf_size + rxq->rx_headroom > PAGE_SIZE)
1291 rxq->rx_buf_size = PAGE_SIZE - rxq->rx_headroom;
1293 /* Segment size to spilt a page in multiple equal parts,
1294 * unless XDP is used in which case we'd use the entire page.
1296 if (!edev->xdp_prog)
1297 rxq->rx_buf_seg_size = roundup_pow_of_two(rxq->rx_buf_size);
1299 rxq->rx_buf_seg_size = PAGE_SIZE;
1301 /* Allocate the parallel driver ring for Rx buffers */
1302 size = sizeof(*rxq->sw_rx_ring) * RX_RING_SIZE;
1303 rxq->sw_rx_ring = kzalloc(size, GFP_KERNEL);
1304 if (!rxq->sw_rx_ring) {
1305 DP_ERR(edev, "Rx buffers ring allocation failed\n");
1310 /* Allocate FW Rx ring */
1311 rc = edev->ops->common->chain_alloc(edev->cdev,
1312 QED_CHAIN_USE_TO_CONSUME_PRODUCE,
1313 QED_CHAIN_MODE_NEXT_PTR,
1314 QED_CHAIN_CNT_TYPE_U16,
1316 sizeof(struct eth_rx_bd),
1317 &rxq->rx_bd_ring, NULL);
1321 /* Allocate FW completion ring */
1322 rc = edev->ops->common->chain_alloc(edev->cdev,
1323 QED_CHAIN_USE_TO_CONSUME,
1325 QED_CHAIN_CNT_TYPE_U16,
1327 sizeof(union eth_rx_cqe),
1328 &rxq->rx_comp_ring, NULL);
1332 /* Allocate buffers for the Rx ring */
1333 rxq->filled_buffers = 0;
1334 for (i = 0; i < rxq->num_rx_buffers; i++) {
1335 rc = qede_alloc_rx_buffer(rxq, false);
1338 "Rx buffers allocation failed at index %d\n", i);
1343 rc = qede_alloc_sge_mem(edev, rxq);
1348 static void qede_free_mem_txq(struct qede_dev *edev, struct qede_tx_queue *txq)
1350 /* Free the parallel SW ring */
1352 kfree(txq->sw_tx_ring.xdp);
1354 kfree(txq->sw_tx_ring.skbs);
1356 /* Free the real RQ ring used by FW */
1357 edev->ops->common->chain_free(edev->cdev, &txq->tx_pbl);
1360 /* This function allocates all memory needed per Tx queue */
1361 static int qede_alloc_mem_txq(struct qede_dev *edev, struct qede_tx_queue *txq)
1363 union eth_tx_bd_types *p_virt;
1366 txq->num_tx_buffers = edev->q_num_tx_buffers;
1368 /* Allocate the parallel driver ring for Tx buffers */
1370 size = sizeof(*txq->sw_tx_ring.xdp) * txq->num_tx_buffers;
1371 txq->sw_tx_ring.xdp = kzalloc(size, GFP_KERNEL);
1372 if (!txq->sw_tx_ring.xdp)
1375 size = sizeof(*txq->sw_tx_ring.skbs) * txq->num_tx_buffers;
1376 txq->sw_tx_ring.skbs = kzalloc(size, GFP_KERNEL);
1377 if (!txq->sw_tx_ring.skbs)
1381 rc = edev->ops->common->chain_alloc(edev->cdev,
1382 QED_CHAIN_USE_TO_CONSUME_PRODUCE,
1384 QED_CHAIN_CNT_TYPE_U16,
1385 txq->num_tx_buffers,
1387 &txq->tx_pbl, NULL);
1394 qede_free_mem_txq(edev, txq);
1398 /* This function frees all memory of a single fp */
1399 static void qede_free_mem_fp(struct qede_dev *edev, struct qede_fastpath *fp)
1401 qede_free_mem_sb(edev, fp->sb_info, fp->id);
1403 if (fp->type & QEDE_FASTPATH_RX)
1404 qede_free_mem_rxq(edev, fp->rxq);
1406 if (fp->type & QEDE_FASTPATH_XDP)
1407 qede_free_mem_txq(edev, fp->xdp_tx);
1409 if (fp->type & QEDE_FASTPATH_TX)
1410 qede_free_mem_txq(edev, fp->txq);
1413 /* This function allocates all memory needed for a single fp (i.e. an entity
1414 * which contains status block, one rx queue and/or multiple per-TC tx queues.
1416 static int qede_alloc_mem_fp(struct qede_dev *edev, struct qede_fastpath *fp)
1420 rc = qede_alloc_mem_sb(edev, fp->sb_info, fp->id);
1424 if (fp->type & QEDE_FASTPATH_RX) {
1425 rc = qede_alloc_mem_rxq(edev, fp->rxq);
1430 if (fp->type & QEDE_FASTPATH_XDP) {
1431 rc = qede_alloc_mem_txq(edev, fp->xdp_tx);
1436 if (fp->type & QEDE_FASTPATH_TX) {
1437 rc = qede_alloc_mem_txq(edev, fp->txq);
1446 static void qede_free_mem_load(struct qede_dev *edev)
1451 struct qede_fastpath *fp = &edev->fp_array[i];
1453 qede_free_mem_fp(edev, fp);
1457 /* This function allocates all qede memory at NIC load. */
1458 static int qede_alloc_mem_load(struct qede_dev *edev)
1460 int rc = 0, queue_id;
1462 for (queue_id = 0; queue_id < QEDE_QUEUE_CNT(edev); queue_id++) {
1463 struct qede_fastpath *fp = &edev->fp_array[queue_id];
1465 rc = qede_alloc_mem_fp(edev, fp);
1468 "Failed to allocate memory for fastpath - rss id = %d\n",
1470 qede_free_mem_load(edev);
1478 /* This function inits fp content and resets the SB, RXQ and TXQ structures */
1479 static void qede_init_fp(struct qede_dev *edev)
1481 int queue_id, rxq_index = 0, txq_index = 0;
1482 struct qede_fastpath *fp;
1484 for_each_queue(queue_id) {
1485 fp = &edev->fp_array[queue_id];
1490 if (fp->type & QEDE_FASTPATH_XDP) {
1491 fp->xdp_tx->index = QEDE_TXQ_IDX_TO_XDP(edev,
1493 fp->xdp_tx->is_xdp = 1;
1496 if (fp->type & QEDE_FASTPATH_RX) {
1497 fp->rxq->rxq_id = rxq_index++;
1499 /* Determine how to map buffers for this queue */
1500 if (fp->type & QEDE_FASTPATH_XDP)
1501 fp->rxq->data_direction = DMA_BIDIRECTIONAL;
1503 fp->rxq->data_direction = DMA_FROM_DEVICE;
1504 fp->rxq->dev = &edev->pdev->dev;
1507 if (fp->type & QEDE_FASTPATH_TX) {
1508 fp->txq->index = txq_index++;
1509 if (edev->dev_info.is_legacy)
1510 fp->txq->is_legacy = 1;
1511 fp->txq->dev = &edev->pdev->dev;
1514 snprintf(fp->name, sizeof(fp->name), "%s-fp-%d",
1515 edev->ndev->name, queue_id);
1518 edev->gro_disable = !(edev->ndev->features & NETIF_F_GRO);
1521 static int qede_set_real_num_queues(struct qede_dev *edev)
1525 rc = netif_set_real_num_tx_queues(edev->ndev, QEDE_TSS_COUNT(edev));
1527 DP_NOTICE(edev, "Failed to set real number of Tx queues\n");
1531 rc = netif_set_real_num_rx_queues(edev->ndev, QEDE_RSS_COUNT(edev));
1533 DP_NOTICE(edev, "Failed to set real number of Rx queues\n");
1540 static void qede_napi_disable_remove(struct qede_dev *edev)
1545 napi_disable(&edev->fp_array[i].napi);
1547 netif_napi_del(&edev->fp_array[i].napi);
1551 static void qede_napi_add_enable(struct qede_dev *edev)
1555 /* Add NAPI objects */
1557 netif_napi_add(edev->ndev, &edev->fp_array[i].napi,
1558 qede_poll, NAPI_POLL_WEIGHT);
1559 napi_enable(&edev->fp_array[i].napi);
1563 static void qede_sync_free_irqs(struct qede_dev *edev)
1567 for (i = 0; i < edev->int_info.used_cnt; i++) {
1568 if (edev->int_info.msix_cnt) {
1569 synchronize_irq(edev->int_info.msix[i].vector);
1570 free_irq(edev->int_info.msix[i].vector,
1571 &edev->fp_array[i]);
1573 edev->ops->common->simd_handler_clean(edev->cdev, i);
1577 edev->int_info.used_cnt = 0;
1580 static int qede_req_msix_irqs(struct qede_dev *edev)
1584 /* Sanitize number of interrupts == number of prepared RSS queues */
1585 if (QEDE_QUEUE_CNT(edev) > edev->int_info.msix_cnt) {
1587 "Interrupt mismatch: %d RSS queues > %d MSI-x vectors\n",
1588 QEDE_QUEUE_CNT(edev), edev->int_info.msix_cnt);
1592 for (i = 0; i < QEDE_QUEUE_CNT(edev); i++) {
1593 #ifdef CONFIG_RFS_ACCEL
1594 struct qede_fastpath *fp = &edev->fp_array[i];
1596 if (edev->ndev->rx_cpu_rmap && (fp->type & QEDE_FASTPATH_RX)) {
1597 rc = irq_cpu_rmap_add(edev->ndev->rx_cpu_rmap,
1598 edev->int_info.msix[i].vector);
1600 DP_ERR(edev, "Failed to add CPU rmap\n");
1601 qede_free_arfs(edev);
1605 rc = request_irq(edev->int_info.msix[i].vector,
1606 qede_msix_fp_int, 0, edev->fp_array[i].name,
1607 &edev->fp_array[i]);
1609 DP_ERR(edev, "Request fp %d irq failed\n", i);
1610 qede_sync_free_irqs(edev);
1613 DP_VERBOSE(edev, NETIF_MSG_INTR,
1614 "Requested fp irq for %s [entry %d]. Cookie is at %p\n",
1615 edev->fp_array[i].name, i,
1616 &edev->fp_array[i]);
1617 edev->int_info.used_cnt++;
1623 static void qede_simd_fp_handler(void *cookie)
1625 struct qede_fastpath *fp = (struct qede_fastpath *)cookie;
1627 napi_schedule_irqoff(&fp->napi);
1630 static int qede_setup_irqs(struct qede_dev *edev)
1634 /* Learn Interrupt configuration */
1635 rc = edev->ops->common->get_fp_int(edev->cdev, &edev->int_info);
1639 if (edev->int_info.msix_cnt) {
1640 rc = qede_req_msix_irqs(edev);
1643 edev->ndev->irq = edev->int_info.msix[0].vector;
1645 const struct qed_common_ops *ops;
1647 /* qed should learn receive the RSS ids and callbacks */
1648 ops = edev->ops->common;
1649 for (i = 0; i < QEDE_QUEUE_CNT(edev); i++)
1650 ops->simd_handler_config(edev->cdev,
1651 &edev->fp_array[i], i,
1652 qede_simd_fp_handler);
1653 edev->int_info.used_cnt = QEDE_QUEUE_CNT(edev);
1658 static int qede_drain_txq(struct qede_dev *edev,
1659 struct qede_tx_queue *txq, bool allow_drain)
1663 while (txq->sw_tx_cons != txq->sw_tx_prod) {
1667 "Tx queue[%d] is stuck, requesting MCP to drain\n",
1669 rc = edev->ops->common->drain(edev->cdev);
1672 return qede_drain_txq(edev, txq, false);
1675 "Timeout waiting for tx queue[%d]: PROD=%d, CONS=%d\n",
1676 txq->index, txq->sw_tx_prod,
1681 usleep_range(1000, 2000);
1685 /* FW finished processing, wait for HW to transmit all tx packets */
1686 usleep_range(1000, 2000);
1691 static int qede_stop_txq(struct qede_dev *edev,
1692 struct qede_tx_queue *txq, int rss_id)
1694 return edev->ops->q_tx_stop(edev->cdev, rss_id, txq->handle);
1697 static int qede_stop_queues(struct qede_dev *edev)
1699 struct qed_update_vport_params *vport_update_params;
1700 struct qed_dev *cdev = edev->cdev;
1701 struct qede_fastpath *fp;
1704 /* Disable the vport */
1705 vport_update_params = vzalloc(sizeof(*vport_update_params));
1706 if (!vport_update_params)
1709 vport_update_params->vport_id = 0;
1710 vport_update_params->update_vport_active_flg = 1;
1711 vport_update_params->vport_active_flg = 0;
1712 vport_update_params->update_rss_flg = 0;
1714 rc = edev->ops->vport_update(cdev, vport_update_params);
1715 vfree(vport_update_params);
1718 DP_ERR(edev, "Failed to update vport\n");
1722 /* Flush Tx queues. If needed, request drain from MCP */
1724 fp = &edev->fp_array[i];
1726 if (fp->type & QEDE_FASTPATH_TX) {
1727 rc = qede_drain_txq(edev, fp->txq, true);
1732 if (fp->type & QEDE_FASTPATH_XDP) {
1733 rc = qede_drain_txq(edev, fp->xdp_tx, true);
1739 /* Stop all Queues in reverse order */
1740 for (i = QEDE_QUEUE_CNT(edev) - 1; i >= 0; i--) {
1741 fp = &edev->fp_array[i];
1743 /* Stop the Tx Queue(s) */
1744 if (fp->type & QEDE_FASTPATH_TX) {
1745 rc = qede_stop_txq(edev, fp->txq, i);
1750 /* Stop the Rx Queue */
1751 if (fp->type & QEDE_FASTPATH_RX) {
1752 rc = edev->ops->q_rx_stop(cdev, i, fp->rxq->handle);
1754 DP_ERR(edev, "Failed to stop RXQ #%d\n", i);
1759 /* Stop the XDP forwarding queue */
1760 if (fp->type & QEDE_FASTPATH_XDP) {
1761 rc = qede_stop_txq(edev, fp->xdp_tx, i);
1765 bpf_prog_put(fp->rxq->xdp_prog);
1769 /* Stop the vport */
1770 rc = edev->ops->vport_stop(cdev, 0);
1772 DP_ERR(edev, "Failed to stop VPORT\n");
1777 static int qede_start_txq(struct qede_dev *edev,
1778 struct qede_fastpath *fp,
1779 struct qede_tx_queue *txq, u8 rss_id, u16 sb_idx)
1781 dma_addr_t phys_table = qed_chain_get_pbl_phys(&txq->tx_pbl);
1782 u32 page_cnt = qed_chain_get_page_cnt(&txq->tx_pbl);
1783 struct qed_queue_start_common_params params;
1784 struct qed_txq_start_ret_params ret_params;
1787 memset(¶ms, 0, sizeof(params));
1788 memset(&ret_params, 0, sizeof(ret_params));
1790 /* Let the XDP queue share the queue-zone with one of the regular txq.
1791 * We don't really care about its coalescing.
1794 params.queue_id = QEDE_TXQ_XDP_TO_IDX(edev, txq);
1796 params.queue_id = txq->index;
1798 params.p_sb = fp->sb_info;
1799 params.sb_idx = sb_idx;
1801 rc = edev->ops->q_tx_start(edev->cdev, rss_id, ¶ms, phys_table,
1802 page_cnt, &ret_params);
1804 DP_ERR(edev, "Start TXQ #%d failed %d\n", txq->index, rc);
1808 txq->doorbell_addr = ret_params.p_doorbell;
1809 txq->handle = ret_params.p_handle;
1811 /* Determine the FW consumer address associated */
1812 txq->hw_cons_ptr = &fp->sb_info->sb_virt->pi_array[sb_idx];
1814 /* Prepare the doorbell parameters */
1815 SET_FIELD(txq->tx_db.data.params, ETH_DB_DATA_DEST, DB_DEST_XCM);
1816 SET_FIELD(txq->tx_db.data.params, ETH_DB_DATA_AGG_CMD, DB_AGG_CMD_SET);
1817 SET_FIELD(txq->tx_db.data.params, ETH_DB_DATA_AGG_VAL_SEL,
1818 DQ_XCM_ETH_TX_BD_PROD_CMD);
1819 txq->tx_db.data.agg_flags = DQ_XCM_ETH_DQ_CF_CMD;
1824 static int qede_start_queues(struct qede_dev *edev, bool clear_stats)
1826 int vlan_removal_en = 1;
1827 struct qed_dev *cdev = edev->cdev;
1828 struct qed_dev_info *qed_info = &edev->dev_info.common;
1829 struct qed_update_vport_params *vport_update_params;
1830 struct qed_queue_start_common_params q_params;
1831 struct qed_start_vport_params start = {0};
1834 if (!edev->num_queues) {
1836 "Cannot update V-VPORT as active as there are no Rx queues\n");
1840 vport_update_params = vzalloc(sizeof(*vport_update_params));
1841 if (!vport_update_params)
1844 start.handle_ptp_pkts = !!(edev->ptp);
1845 start.gro_enable = !edev->gro_disable;
1846 start.mtu = edev->ndev->mtu;
1848 start.drop_ttl0 = true;
1849 start.remove_inner_vlan = vlan_removal_en;
1850 start.clear_stats = clear_stats;
1852 rc = edev->ops->vport_start(cdev, &start);
1855 DP_ERR(edev, "Start V-PORT failed %d\n", rc);
1859 DP_VERBOSE(edev, NETIF_MSG_IFUP,
1860 "Start vport ramrod passed, vport_id = %d, MTU = %d, vlan_removal_en = %d\n",
1861 start.vport_id, edev->ndev->mtu + 0xe, vlan_removal_en);
1864 struct qede_fastpath *fp = &edev->fp_array[i];
1865 dma_addr_t p_phys_table;
1868 if (fp->type & QEDE_FASTPATH_RX) {
1869 struct qed_rxq_start_ret_params ret_params;
1870 struct qede_rx_queue *rxq = fp->rxq;
1873 memset(&ret_params, 0, sizeof(ret_params));
1874 memset(&q_params, 0, sizeof(q_params));
1875 q_params.queue_id = rxq->rxq_id;
1876 q_params.vport_id = 0;
1877 q_params.p_sb = fp->sb_info;
1878 q_params.sb_idx = RX_PI;
1881 qed_chain_get_pbl_phys(&rxq->rx_comp_ring);
1882 page_cnt = qed_chain_get_page_cnt(&rxq->rx_comp_ring);
1884 rc = edev->ops->q_rx_start(cdev, i, &q_params,
1886 rxq->rx_bd_ring.p_phys_addr,
1888 page_cnt, &ret_params);
1890 DP_ERR(edev, "Start RXQ #%d failed %d\n", i,
1895 /* Use the return parameters */
1896 rxq->hw_rxq_prod_addr = ret_params.p_prod;
1897 rxq->handle = ret_params.p_handle;
1899 val = &fp->sb_info->sb_virt->pi_array[RX_PI];
1900 rxq->hw_cons_ptr = val;
1902 qede_update_rx_prod(edev, rxq);
1905 if (fp->type & QEDE_FASTPATH_XDP) {
1906 rc = qede_start_txq(edev, fp, fp->xdp_tx, i, XDP_PI);
1910 fp->rxq->xdp_prog = bpf_prog_add(edev->xdp_prog, 1);
1911 if (IS_ERR(fp->rxq->xdp_prog)) {
1912 rc = PTR_ERR(fp->rxq->xdp_prog);
1913 fp->rxq->xdp_prog = NULL;
1918 if (fp->type & QEDE_FASTPATH_TX) {
1919 rc = qede_start_txq(edev, fp, fp->txq, i, TX_PI(0));
1925 /* Prepare and send the vport enable */
1926 vport_update_params->vport_id = start.vport_id;
1927 vport_update_params->update_vport_active_flg = 1;
1928 vport_update_params->vport_active_flg = 1;
1930 if ((qed_info->mf_mode == QED_MF_NPAR || pci_num_vf(edev->pdev)) &&
1931 qed_info->tx_switching) {
1932 vport_update_params->update_tx_switching_flg = 1;
1933 vport_update_params->tx_switching_flg = 1;
1936 qede_fill_rss_params(edev, &vport_update_params->rss_params,
1937 &vport_update_params->update_rss_flg);
1939 rc = edev->ops->vport_update(cdev, vport_update_params);
1941 DP_ERR(edev, "Update V-PORT failed %d\n", rc);
1944 vfree(vport_update_params);
1948 enum qede_unload_mode {
1952 static void qede_unload(struct qede_dev *edev, enum qede_unload_mode mode,
1955 struct qed_link_params link_params;
1958 DP_INFO(edev, "Starting qede unload\n");
1963 edev->state = QEDE_STATE_CLOSED;
1965 qede_rdma_dev_event_close(edev);
1968 netif_tx_disable(edev->ndev);
1969 netif_carrier_off(edev->ndev);
1971 /* Reset the link */
1972 memset(&link_params, 0, sizeof(link_params));
1973 link_params.link_up = false;
1974 edev->ops->common->set_link(edev->cdev, &link_params);
1975 rc = qede_stop_queues(edev);
1977 qede_sync_free_irqs(edev);
1981 DP_INFO(edev, "Stopped Queues\n");
1983 qede_vlan_mark_nonconfigured(edev);
1984 edev->ops->fastpath_stop(edev->cdev);
1986 if (!IS_VF(edev) && edev->dev_info.common.num_hwfns == 1) {
1987 qede_poll_for_freeing_arfs_filters(edev);
1988 qede_free_arfs(edev);
1991 /* Release the interrupts */
1992 qede_sync_free_irqs(edev);
1993 edev->ops->common->set_fp_int(edev->cdev, 0);
1995 qede_napi_disable_remove(edev);
1997 qede_free_mem_load(edev);
1998 qede_free_fp_array(edev);
2002 __qede_unlock(edev);
2003 DP_INFO(edev, "Ending qede unload\n");
2006 enum qede_load_mode {
2011 static int qede_load(struct qede_dev *edev, enum qede_load_mode mode,
2014 struct qed_link_params link_params;
2017 DP_INFO(edev, "Starting qede load\n");
2022 rc = qede_set_num_queues(edev);
2026 rc = qede_alloc_fp_array(edev);
2032 rc = qede_alloc_mem_load(edev);
2035 DP_INFO(edev, "Allocated %d Rx, %d Tx queues\n",
2036 QEDE_RSS_COUNT(edev), QEDE_TSS_COUNT(edev));
2038 rc = qede_set_real_num_queues(edev);
2042 if (!IS_VF(edev) && edev->dev_info.common.num_hwfns == 1) {
2043 rc = qede_alloc_arfs(edev);
2045 DP_NOTICE(edev, "aRFS memory allocation failed\n");
2048 qede_napi_add_enable(edev);
2049 DP_INFO(edev, "Napi added and enabled\n");
2051 rc = qede_setup_irqs(edev);
2054 DP_INFO(edev, "Setup IRQs succeeded\n");
2056 rc = qede_start_queues(edev, mode != QEDE_LOAD_RELOAD);
2059 DP_INFO(edev, "Start VPORT, RXQ and TXQ succeeded\n");
2061 /* Program un-configured VLANs */
2062 qede_configure_vlan_filters(edev);
2064 /* Ask for link-up using current configuration */
2065 memset(&link_params, 0, sizeof(link_params));
2066 link_params.link_up = true;
2067 edev->ops->common->set_link(edev->cdev, &link_params);
2069 qede_rdma_dev_event_open(edev);
2071 edev->state = QEDE_STATE_OPEN;
2073 DP_INFO(edev, "Ending successfully qede load\n");
2077 qede_sync_free_irqs(edev);
2078 memset(&edev->int_info.msix_cnt, 0, sizeof(struct qed_int_info));
2080 qede_napi_disable_remove(edev);
2082 qede_free_mem_load(edev);
2084 edev->ops->common->set_fp_int(edev->cdev, 0);
2085 qede_free_fp_array(edev);
2086 edev->num_queues = 0;
2087 edev->fp_num_tx = 0;
2088 edev->fp_num_rx = 0;
2091 __qede_unlock(edev);
2096 /* 'func' should be able to run between unload and reload assuming interface
2097 * is actually running, or afterwards in case it's currently DOWN.
2099 void qede_reload(struct qede_dev *edev,
2100 struct qede_reload_args *args, bool is_locked)
2105 /* Since qede_lock is held, internal state wouldn't change even
2106 * if netdev state would start transitioning. Check whether current
2107 * internal configuration indicates device is up, then reload.
2109 if (edev->state == QEDE_STATE_OPEN) {
2110 qede_unload(edev, QEDE_UNLOAD_NORMAL, true);
2112 args->func(edev, args);
2113 qede_load(edev, QEDE_LOAD_RELOAD, true);
2115 /* Since no one is going to do it for us, re-configure */
2116 qede_config_rx_mode(edev->ndev);
2118 args->func(edev, args);
2122 __qede_unlock(edev);
2125 /* called with rtnl_lock */
2126 static int qede_open(struct net_device *ndev)
2128 struct qede_dev *edev = netdev_priv(ndev);
2131 netif_carrier_off(ndev);
2133 edev->ops->common->set_power_state(edev->cdev, PCI_D0);
2135 rc = qede_load(edev, QEDE_LOAD_NORMAL, false);
2139 udp_tunnel_get_rx_info(ndev);
2141 edev->ops->common->update_drv_state(edev->cdev, true);
2146 static int qede_close(struct net_device *ndev)
2148 struct qede_dev *edev = netdev_priv(ndev);
2150 qede_unload(edev, QEDE_UNLOAD_NORMAL, false);
2152 edev->ops->common->update_drv_state(edev->cdev, false);
2157 static void qede_link_update(void *dev, struct qed_link_output *link)
2159 struct qede_dev *edev = dev;
2161 if (!netif_running(edev->ndev)) {
2162 DP_VERBOSE(edev, NETIF_MSG_LINK, "Interface is not running\n");
2166 if (link->link_up) {
2167 if (!netif_carrier_ok(edev->ndev)) {
2168 DP_NOTICE(edev, "Link is up\n");
2169 netif_tx_start_all_queues(edev->ndev);
2170 netif_carrier_on(edev->ndev);
2173 if (netif_carrier_ok(edev->ndev)) {
2174 DP_NOTICE(edev, "Link is down\n");
2175 netif_tx_disable(edev->ndev);
2176 netif_carrier_off(edev->ndev);