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Merge tag 'armsoc-dt64' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
[mirror_ubuntu-artful-kernel.git] / drivers / net / ethernet / qlogic / qede / qede_main.c
1 /* QLogic qede NIC Driver
2 * Copyright (c) 2015-2017 QLogic Corporation
3 *
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:
9 *
10 * Redistribution and use in source and binary forms, with or
11 * without modification, are permitted provided that the following
12 * conditions are met:
13 *
14 * - Redistributions of source code must retain the above
15 * copyright notice, this list of conditions and the following
16 * disclaimer.
17 *
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.
22 *
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
30 * SOFTWARE.
31 */
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>
46 #include <linux/io.h>
47 #include <linux/netdev_features.h>
48 #include <linux/udp.h>
49 #include <linux/tcp.h>
50 #include <net/udp_tunnel.h>
51 #include <linux/ip.h>
52 #include <net/ipv6.h>
53 #include <net/tcp.h>
54 #include <linux/if_ether.h>
55 #include <linux/if_vlan.h>
56 #include <linux/pkt_sched.h>
57 #include <linux/ethtool.h>
58 #include <linux/in.h>
59 #include <linux/random.h>
60 #include <net/ip6_checksum.h>
61 #include <linux/bitops.h>
62 #include <linux/vmalloc.h>
63 #include <linux/qed/qede_roce.h>
64 #include "qede.h"
65 #include "qede_ptp.h"
66
67 static char version[] =
68 "QLogic FastLinQ 4xxxx Ethernet Driver qede " DRV_MODULE_VERSION "\n";
69
70 MODULE_DESCRIPTION("QLogic FastLinQ 4xxxx Ethernet Driver");
71 MODULE_LICENSE("GPL");
72 MODULE_VERSION(DRV_MODULE_VERSION);
73
74 static uint debug;
75 module_param(debug, uint, 0);
76 MODULE_PARM_DESC(debug, " Default debug msglevel");
77
78 static const struct qed_eth_ops *qed_ops;
79
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
89
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
100
101 #endif
102
103 enum qede_pci_private {
104 QEDE_PRIVATE_PF,
105 QEDE_PRIVATE_VF
106 };
107
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},
117 #endif
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},
121 #endif
122 { 0 }
123 };
124
125 MODULE_DEVICE_TABLE(pci, qede_pci_tbl);
126
127 static int qede_probe(struct pci_dev *pdev, const struct pci_device_id *id);
128
129 #define TX_TIMEOUT (5 * HZ)
130
131 /* Utilize last protocol index for XDP */
132 #define XDP_PI 11
133
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);
137
138 /* The qede lock is used to protect driver state change and driver flows that
139 * are not reentrant.
140 */
141 void __qede_lock(struct qede_dev *edev)
142 {
143 mutex_lock(&edev->qede_lock);
144 }
145
146 void __qede_unlock(struct qede_dev *edev)
147 {
148 mutex_unlock(&edev->qede_lock);
149 }
150
151 #ifdef CONFIG_QED_SRIOV
152 static int qede_set_vf_vlan(struct net_device *ndev, int vf, u16 vlan, u8 qos,
153 __be16 vlan_proto)
154 {
155 struct qede_dev *edev = netdev_priv(ndev);
156
157 if (vlan > 4095) {
158 DP_NOTICE(edev, "Illegal vlan value %d\n", vlan);
159 return -EINVAL;
160 }
161
162 if (vlan_proto != htons(ETH_P_8021Q))
163 return -EPROTONOSUPPORT;
164
165 DP_VERBOSE(edev, QED_MSG_IOV, "Setting Vlan 0x%04x to VF [%d]\n",
166 vlan, vf);
167
168 return edev->ops->iov->set_vlan(edev->cdev, vlan, vf);
169 }
170
171 static int qede_set_vf_mac(struct net_device *ndev, int vfidx, u8 *mac)
172 {
173 struct qede_dev *edev = netdev_priv(ndev);
174
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);
178
179 if (!is_valid_ether_addr(mac)) {
180 DP_VERBOSE(edev, QED_MSG_IOV, "MAC address isn't valid\n");
181 return -EINVAL;
182 }
183
184 return edev->ops->iov->set_mac(edev->cdev, mac, vfidx);
185 }
186
187 static int qede_sriov_configure(struct pci_dev *pdev, int num_vfs_param)
188 {
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;
192 int rc;
193
194 vport_params = vzalloc(sizeof(*vport_params));
195 if (!vport_params)
196 return -ENOMEM;
197 DP_VERBOSE(edev, QED_MSG_IOV, "Requested %d VFs\n", num_vfs_param);
198
199 rc = edev->ops->iov->configure(edev->cdev, num_vfs_param);
200
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);
208 }
209
210 vfree(vport_params);
211 return rc;
212 }
213 #endif
214
215 static struct pci_driver qede_pci_driver = {
216 .name = "qede",
217 .id_table = qede_pci_tbl,
218 .probe = qede_probe,
219 .remove = qede_remove,
220 .shutdown = qede_shutdown,
221 #ifdef CONFIG_QED_SRIOV
222 .sriov_configure = qede_sriov_configure,
223 #endif
224 };
225
226 static struct qed_eth_cb_ops qede_ll_ops = {
227 {
228 #ifdef CONFIG_RFS_ACCEL
229 .arfs_filter_op = qede_arfs_filter_op,
230 #endif
231 .link_update = qede_link_update,
232 },
233 .force_mac = qede_force_mac,
234 .ports_update = qede_udp_ports_update,
235 };
236
237 static int qede_netdev_event(struct notifier_block *this, unsigned long event,
238 void *ptr)
239 {
240 struct net_device *ndev = netdev_notifier_info_to_dev(ptr);
241 struct ethtool_drvinfo drvinfo;
242 struct qede_dev *edev;
243
244 if (event != NETDEV_CHANGENAME && event != NETDEV_CHANGEADDR)
245 goto done;
246
247 /* Check whether this is a qede device */
248 if (!ndev || !ndev->ethtool_ops || !ndev->ethtool_ops->get_drvinfo)
249 goto done;
250
251 memset(&drvinfo, 0, sizeof(drvinfo));
252 ndev->ethtool_ops->get_drvinfo(ndev, &drvinfo);
253 if (strcmp(drvinfo.driver, "qede"))
254 goto done;
255 edev = netdev_priv(ndev);
256
257 switch (event) {
258 case NETDEV_CHANGENAME:
259 /* Notify qed of the name change */
260 if (!edev->ops || !edev->ops->common)
261 goto done;
262 edev->ops->common->set_id(edev->cdev, edev->ndev->name, "qede");
263 break;
264 case NETDEV_CHANGEADDR:
265 edev = netdev_priv(ndev);
266 qede_roce_event_changeaddr(edev);
267 break;
268 }
269
270 done:
271 return NOTIFY_DONE;
272 }
273
274 static struct notifier_block qede_netdev_notifier = {
275 .notifier_call = qede_netdev_event,
276 };
277
278 static
279 int __init qede_init(void)
280 {
281 int ret;
282
283 pr_info("qede_init: %s\n", version);
284
285 qed_ops = qed_get_eth_ops();
286 if (!qed_ops) {
287 pr_notice("Failed to get qed ethtool operations\n");
288 return -EINVAL;
289 }
290
291 /* Must register notifier before pci ops, since we might miss
292 * interface rename after pci probe and netdev registeration.
293 */
294 ret = register_netdevice_notifier(&qede_netdev_notifier);
295 if (ret) {
296 pr_notice("Failed to register netdevice_notifier\n");
297 qed_put_eth_ops();
298 return -EINVAL;
299 }
300
301 ret = pci_register_driver(&qede_pci_driver);
302 if (ret) {
303 pr_notice("Failed to register driver\n");
304 unregister_netdevice_notifier(&qede_netdev_notifier);
305 qed_put_eth_ops();
306 return -EINVAL;
307 }
308
309 return 0;
310 }
311
312 static void __exit qede_cleanup(void)
313 {
314 if (debug & QED_LOG_INFO_MASK)
315 pr_info("qede_cleanup called\n");
316
317 unregister_netdevice_notifier(&qede_netdev_notifier);
318 pci_unregister_driver(&qede_pci_driver);
319 qed_put_eth_ops();
320 }
321
322 module_init(qede_init);
323 module_exit(qede_cleanup);
324
325 static int qede_open(struct net_device *ndev);
326 static int qede_close(struct net_device *ndev);
327
328 void qede_fill_by_demand_stats(struct qede_dev *edev)
329 {
330 struct qede_stats_common *p_common = &edev->stats.common;
331 struct qed_eth_stats stats;
332
333 edev->ops->get_vport_stats(edev->cdev, &stats);
334
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;
346
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;
359
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;
397
398 if (QEDE_IS_BB(edev)) {
399 struct qede_stats_bb *p_bb = &edev->stats.bb;
400
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;
421 } else {
422 struct qede_stats_ah *p_ah = &edev->stats.ah;
423
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;
428 }
429 }
430
431 static void qede_get_stats64(struct net_device *dev,
432 struct rtnl_link_stats64 *stats)
433 {
434 struct qede_dev *edev = netdev_priv(dev);
435 struct qede_stats_common *p_common;
436
437 qede_fill_by_demand_stats(edev);
438 p_common = &edev->stats.common;
439
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;
444
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;
449
450 stats->tx_errors = p_common->tx_err_drop_pkts;
451 stats->multicast = p_common->rx_mcast_pkts + p_common->rx_bcast_pkts;
452
453 stats->rx_fifo_errors = p_common->no_buff_discards;
454
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;
459 }
460
461 #ifdef CONFIG_QED_SRIOV
462 static int qede_get_vf_config(struct net_device *dev, int vfidx,
463 struct ifla_vf_info *ivi)
464 {
465 struct qede_dev *edev = netdev_priv(dev);
466
467 if (!edev->ops)
468 return -EINVAL;
469
470 return edev->ops->iov->get_config(edev->cdev, vfidx, ivi);
471 }
472
473 static int qede_set_vf_rate(struct net_device *dev, int vfidx,
474 int min_tx_rate, int max_tx_rate)
475 {
476 struct qede_dev *edev = netdev_priv(dev);
477
478 return edev->ops->iov->set_rate(edev->cdev, vfidx, min_tx_rate,
479 max_tx_rate);
480 }
481
482 static int qede_set_vf_spoofchk(struct net_device *dev, int vfidx, bool val)
483 {
484 struct qede_dev *edev = netdev_priv(dev);
485
486 if (!edev->ops)
487 return -EINVAL;
488
489 return edev->ops->iov->set_spoof(edev->cdev, vfidx, val);
490 }
491
492 static int qede_set_vf_link_state(struct net_device *dev, int vfidx,
493 int link_state)
494 {
495 struct qede_dev *edev = netdev_priv(dev);
496
497 if (!edev->ops)
498 return -EINVAL;
499
500 return edev->ops->iov->set_link_state(edev->cdev, vfidx, link_state);
501 }
502
503 static int qede_set_vf_trust(struct net_device *dev, int vfidx, bool setting)
504 {
505 struct qede_dev *edev = netdev_priv(dev);
506
507 if (!edev->ops)
508 return -EINVAL;
509
510 return edev->ops->iov->set_trust(edev->cdev, vfidx, setting);
511 }
512 #endif
513
514 static int qede_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd)
515 {
516 struct qede_dev *edev = netdev_priv(dev);
517
518 if (!netif_running(dev))
519 return -EAGAIN;
520
521 switch (cmd) {
522 case SIOCSHWTSTAMP:
523 return qede_ptp_hw_ts(edev, ifr);
524 default:
525 DP_VERBOSE(edev, QED_MSG_DEBUG,
526 "default IOCTL cmd 0x%x\n", cmd);
527 return -EOPNOTSUPP;
528 }
529
530 return 0;
531 }
532
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,
546 #endif
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,
556 #endif
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,
560 .ndo_xdp = qede_xdp,
561 #ifdef CONFIG_RFS_ACCEL
562 .ndo_rx_flow_steer = qede_rx_flow_steer,
563 #endif
564 };
565
566 /* -------------------------------------------------------------------------
567 * START OF PROBE / REMOVE
568 * -------------------------------------------------------------------------
569 */
570
571 static struct qede_dev *qede_alloc_etherdev(struct qed_dev *cdev,
572 struct pci_dev *pdev,
573 struct qed_dev_eth_info *info,
574 u32 dp_module, u8 dp_level)
575 {
576 struct net_device *ndev;
577 struct qede_dev *edev;
578
579 ndev = alloc_etherdev_mqs(sizeof(*edev),
580 info->num_queues, info->num_queues);
581 if (!ndev) {
582 pr_err("etherdev allocation failed\n");
583 return NULL;
584 }
585
586 edev = netdev_priv(ndev);
587 edev->ndev = ndev;
588 edev->cdev = cdev;
589 edev->pdev = pdev;
590 edev->dp_module = dp_module;
591 edev->dp_level = dp_level;
592 edev->ops = qed_ops;
593 edev->q_num_rx_buffers = NUM_RX_BDS_DEF;
594 edev->q_num_tx_buffers = NUM_TX_BDS_DEF;
595
596 DP_INFO(edev, "Allocated netdev with %d tx queues and %d rx queues\n",
597 info->num_queues, info->num_queues);
598
599 SET_NETDEV_DEV(ndev, &pdev->dev);
600
601 memset(&edev->stats, 0, sizeof(edev->stats));
602 memcpy(&edev->dev_info, info, sizeof(*info));
603
604 INIT_LIST_HEAD(&edev->vlan_list);
605
606 return edev;
607 }
608
609 static void qede_init_ndev(struct qede_dev *edev)
610 {
611 struct net_device *ndev = edev->ndev;
612 struct pci_dev *pdev = edev->pdev;
613 bool udp_tunnel_enable = false;
614 netdev_features_t hw_features;
615
616 pci_set_drvdata(pdev, ndev);
617
618 ndev->mem_start = edev->dev_info.common.pci_mem_start;
619 ndev->base_addr = ndev->mem_start;
620 ndev->mem_end = edev->dev_info.common.pci_mem_end;
621 ndev->irq = edev->dev_info.common.pci_irq;
622
623 ndev->watchdog_timeo = TX_TIMEOUT;
624
625 ndev->netdev_ops = &qede_netdev_ops;
626
627 qede_set_ethtool_ops(ndev);
628
629 ndev->priv_flags |= IFF_UNICAST_FLT;
630
631 /* user-changeble features */
632 hw_features = NETIF_F_GRO | NETIF_F_SG |
633 NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM |
634 NETIF_F_TSO | NETIF_F_TSO6;
635
636 if (!IS_VF(edev) && edev->dev_info.common.num_hwfns == 1)
637 hw_features |= NETIF_F_NTUPLE;
638
639 if (edev->dev_info.common.vxlan_enable ||
640 edev->dev_info.common.geneve_enable)
641 udp_tunnel_enable = true;
642
643 if (udp_tunnel_enable || edev->dev_info.common.gre_enable) {
644 hw_features |= NETIF_F_TSO_ECN;
645 ndev->hw_enc_features = NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM |
646 NETIF_F_SG | NETIF_F_TSO |
647 NETIF_F_TSO_ECN | NETIF_F_TSO6 |
648 NETIF_F_RXCSUM;
649 }
650
651 if (udp_tunnel_enable) {
652 hw_features |= (NETIF_F_GSO_UDP_TUNNEL |
653 NETIF_F_GSO_UDP_TUNNEL_CSUM);
654 ndev->hw_enc_features |= (NETIF_F_GSO_UDP_TUNNEL |
655 NETIF_F_GSO_UDP_TUNNEL_CSUM);
656 }
657
658 if (edev->dev_info.common.gre_enable) {
659 hw_features |= (NETIF_F_GSO_GRE | NETIF_F_GSO_GRE_CSUM);
660 ndev->hw_enc_features |= (NETIF_F_GSO_GRE |
661 NETIF_F_GSO_GRE_CSUM);
662 }
663
664 ndev->vlan_features = hw_features | NETIF_F_RXHASH | NETIF_F_RXCSUM |
665 NETIF_F_HIGHDMA;
666 ndev->features = hw_features | NETIF_F_RXHASH | NETIF_F_RXCSUM |
667 NETIF_F_HW_VLAN_CTAG_RX | NETIF_F_HIGHDMA |
668 NETIF_F_HW_VLAN_CTAG_FILTER | NETIF_F_HW_VLAN_CTAG_TX;
669
670 ndev->hw_features = hw_features;
671
672 /* MTU range: 46 - 9600 */
673 ndev->min_mtu = ETH_ZLEN - ETH_HLEN;
674 ndev->max_mtu = QEDE_MAX_JUMBO_PACKET_SIZE;
675
676 /* Set network device HW mac */
677 ether_addr_copy(edev->ndev->dev_addr, edev->dev_info.common.hw_mac);
678
679 ndev->mtu = edev->dev_info.common.mtu;
680 }
681
682 /* This function converts from 32b param to two params of level and module
683 * Input 32b decoding:
684 * b31 - enable all NOTICE prints. NOTICE prints are for deviation from the
685 * 'happy' flow, e.g. memory allocation failed.
686 * b30 - enable all INFO prints. INFO prints are for major steps in the flow
687 * and provide important parameters.
688 * b29-b0 - per-module bitmap, where each bit enables VERBOSE prints of that
689 * module. VERBOSE prints are for tracking the specific flow in low level.
690 *
691 * Notice that the level should be that of the lowest required logs.
692 */
693 void qede_config_debug(uint debug, u32 *p_dp_module, u8 *p_dp_level)
694 {
695 *p_dp_level = QED_LEVEL_NOTICE;
696 *p_dp_module = 0;
697
698 if (debug & QED_LOG_VERBOSE_MASK) {
699 *p_dp_level = QED_LEVEL_VERBOSE;
700 *p_dp_module = (debug & 0x3FFFFFFF);
701 } else if (debug & QED_LOG_INFO_MASK) {
702 *p_dp_level = QED_LEVEL_INFO;
703 } else if (debug & QED_LOG_NOTICE_MASK) {
704 *p_dp_level = QED_LEVEL_NOTICE;
705 }
706 }
707
708 static void qede_free_fp_array(struct qede_dev *edev)
709 {
710 if (edev->fp_array) {
711 struct qede_fastpath *fp;
712 int i;
713
714 for_each_queue(i) {
715 fp = &edev->fp_array[i];
716
717 kfree(fp->sb_info);
718 kfree(fp->rxq);
719 kfree(fp->xdp_tx);
720 kfree(fp->txq);
721 }
722 kfree(edev->fp_array);
723 }
724
725 edev->num_queues = 0;
726 edev->fp_num_tx = 0;
727 edev->fp_num_rx = 0;
728 }
729
730 static int qede_alloc_fp_array(struct qede_dev *edev)
731 {
732 u8 fp_combined, fp_rx = edev->fp_num_rx;
733 struct qede_fastpath *fp;
734 int i;
735
736 edev->fp_array = kcalloc(QEDE_QUEUE_CNT(edev),
737 sizeof(*edev->fp_array), GFP_KERNEL);
738 if (!edev->fp_array) {
739 DP_NOTICE(edev, "fp array allocation failed\n");
740 goto err;
741 }
742
743 fp_combined = QEDE_QUEUE_CNT(edev) - fp_rx - edev->fp_num_tx;
744
745 /* Allocate the FP elements for Rx queues followed by combined and then
746 * the Tx. This ordering should be maintained so that the respective
747 * queues (Rx or Tx) will be together in the fastpath array and the
748 * associated ids will be sequential.
749 */
750 for_each_queue(i) {
751 fp = &edev->fp_array[i];
752
753 fp->sb_info = kzalloc(sizeof(*fp->sb_info), GFP_KERNEL);
754 if (!fp->sb_info) {
755 DP_NOTICE(edev, "sb info struct allocation failed\n");
756 goto err;
757 }
758
759 if (fp_rx) {
760 fp->type = QEDE_FASTPATH_RX;
761 fp_rx--;
762 } else if (fp_combined) {
763 fp->type = QEDE_FASTPATH_COMBINED;
764 fp_combined--;
765 } else {
766 fp->type = QEDE_FASTPATH_TX;
767 }
768
769 if (fp->type & QEDE_FASTPATH_TX) {
770 fp->txq = kzalloc(sizeof(*fp->txq), GFP_KERNEL);
771 if (!fp->txq)
772 goto err;
773 }
774
775 if (fp->type & QEDE_FASTPATH_RX) {
776 fp->rxq = kzalloc(sizeof(*fp->rxq), GFP_KERNEL);
777 if (!fp->rxq)
778 goto err;
779
780 if (edev->xdp_prog) {
781 fp->xdp_tx = kzalloc(sizeof(*fp->xdp_tx),
782 GFP_KERNEL);
783 if (!fp->xdp_tx)
784 goto err;
785 fp->type |= QEDE_FASTPATH_XDP;
786 }
787 }
788 }
789
790 return 0;
791 err:
792 qede_free_fp_array(edev);
793 return -ENOMEM;
794 }
795
796 static void qede_sp_task(struct work_struct *work)
797 {
798 struct qede_dev *edev = container_of(work, struct qede_dev,
799 sp_task.work);
800
801 __qede_lock(edev);
802
803 if (test_and_clear_bit(QEDE_SP_RX_MODE, &edev->sp_flags))
804 if (edev->state == QEDE_STATE_OPEN)
805 qede_config_rx_mode(edev->ndev);
806
807 #ifdef CONFIG_RFS_ACCEL
808 if (test_and_clear_bit(QEDE_SP_ARFS_CONFIG, &edev->sp_flags)) {
809 if (edev->state == QEDE_STATE_OPEN)
810 qede_process_arfs_filters(edev, false);
811 }
812 #endif
813 __qede_unlock(edev);
814 }
815
816 static void qede_update_pf_params(struct qed_dev *cdev)
817 {
818 struct qed_pf_params pf_params;
819
820 /* 64 rx + 64 tx + 64 XDP */
821 memset(&pf_params, 0, sizeof(struct qed_pf_params));
822 pf_params.eth_pf_params.num_cons = (MAX_SB_PER_PF_MIMD - 1) * 3;
823 #ifdef CONFIG_RFS_ACCEL
824 pf_params.eth_pf_params.num_arfs_filters = QEDE_RFS_MAX_FLTR;
825 #endif
826 qed_ops->common->update_pf_params(cdev, &pf_params);
827 }
828
829 enum qede_probe_mode {
830 QEDE_PROBE_NORMAL,
831 };
832
833 static int __qede_probe(struct pci_dev *pdev, u32 dp_module, u8 dp_level,
834 bool is_vf, enum qede_probe_mode mode)
835 {
836 struct qed_probe_params probe_params;
837 struct qed_slowpath_params sp_params;
838 struct qed_dev_eth_info dev_info;
839 struct qede_dev *edev;
840 struct qed_dev *cdev;
841 int rc;
842
843 if (unlikely(dp_level & QED_LEVEL_INFO))
844 pr_notice("Starting qede probe\n");
845
846 memset(&probe_params, 0, sizeof(probe_params));
847 probe_params.protocol = QED_PROTOCOL_ETH;
848 probe_params.dp_module = dp_module;
849 probe_params.dp_level = dp_level;
850 probe_params.is_vf = is_vf;
851 cdev = qed_ops->common->probe(pdev, &probe_params);
852 if (!cdev) {
853 rc = -ENODEV;
854 goto err0;
855 }
856
857 qede_update_pf_params(cdev);
858
859 /* Start the Slowpath-process */
860 memset(&sp_params, 0, sizeof(sp_params));
861 sp_params.int_mode = QED_INT_MODE_MSIX;
862 sp_params.drv_major = QEDE_MAJOR_VERSION;
863 sp_params.drv_minor = QEDE_MINOR_VERSION;
864 sp_params.drv_rev = QEDE_REVISION_VERSION;
865 sp_params.drv_eng = QEDE_ENGINEERING_VERSION;
866 strlcpy(sp_params.name, "qede LAN", QED_DRV_VER_STR_SIZE);
867 rc = qed_ops->common->slowpath_start(cdev, &sp_params);
868 if (rc) {
869 pr_notice("Cannot start slowpath\n");
870 goto err1;
871 }
872
873 /* Learn information crucial for qede to progress */
874 rc = qed_ops->fill_dev_info(cdev, &dev_info);
875 if (rc)
876 goto err2;
877
878 edev = qede_alloc_etherdev(cdev, pdev, &dev_info, dp_module,
879 dp_level);
880 if (!edev) {
881 rc = -ENOMEM;
882 goto err2;
883 }
884
885 if (is_vf)
886 edev->flags |= QEDE_FLAG_IS_VF;
887
888 qede_init_ndev(edev);
889
890 rc = qede_roce_dev_add(edev);
891 if (rc)
892 goto err3;
893
894 /* Prepare the lock prior to the registeration of the netdev,
895 * as once it's registered we might reach flows requiring it
896 * [it's even possible to reach a flow needing it directly
897 * from there, although it's unlikely].
898 */
899 INIT_DELAYED_WORK(&edev->sp_task, qede_sp_task);
900 mutex_init(&edev->qede_lock);
901 rc = register_netdev(edev->ndev);
902 if (rc) {
903 DP_NOTICE(edev, "Cannot register net-device\n");
904 goto err4;
905 }
906
907 edev->ops->common->set_id(cdev, edev->ndev->name, DRV_MODULE_VERSION);
908
909 /* PTP not supported on VFs */
910 if (!is_vf)
911 qede_ptp_enable(edev, true);
912
913 edev->ops->register_ops(cdev, &qede_ll_ops, edev);
914
915 #ifdef CONFIG_DCB
916 if (!IS_VF(edev))
917 qede_set_dcbnl_ops(edev->ndev);
918 #endif
919
920 edev->rx_copybreak = QEDE_RX_HDR_SIZE;
921
922 DP_INFO(edev, "Ending successfully qede probe\n");
923
924 return 0;
925
926 err4:
927 qede_roce_dev_remove(edev);
928 err3:
929 free_netdev(edev->ndev);
930 err2:
931 qed_ops->common->slowpath_stop(cdev);
932 err1:
933 qed_ops->common->remove(cdev);
934 err0:
935 return rc;
936 }
937
938 static int qede_probe(struct pci_dev *pdev, const struct pci_device_id *id)
939 {
940 bool is_vf = false;
941 u32 dp_module = 0;
942 u8 dp_level = 0;
943
944 switch ((enum qede_pci_private)id->driver_data) {
945 case QEDE_PRIVATE_VF:
946 if (debug & QED_LOG_VERBOSE_MASK)
947 dev_err(&pdev->dev, "Probing a VF\n");
948 is_vf = true;
949 break;
950 default:
951 if (debug & QED_LOG_VERBOSE_MASK)
952 dev_err(&pdev->dev, "Probing a PF\n");
953 }
954
955 qede_config_debug(debug, &dp_module, &dp_level);
956
957 return __qede_probe(pdev, dp_module, dp_level, is_vf,
958 QEDE_PROBE_NORMAL);
959 }
960
961 enum qede_remove_mode {
962 QEDE_REMOVE_NORMAL,
963 };
964
965 static void __qede_remove(struct pci_dev *pdev, enum qede_remove_mode mode)
966 {
967 struct net_device *ndev = pci_get_drvdata(pdev);
968 struct qede_dev *edev = netdev_priv(ndev);
969 struct qed_dev *cdev = edev->cdev;
970
971 DP_INFO(edev, "Starting qede_remove\n");
972
973 unregister_netdev(ndev);
974 cancel_delayed_work_sync(&edev->sp_task);
975
976 qede_ptp_disable(edev);
977
978 qede_roce_dev_remove(edev);
979
980 edev->ops->common->set_power_state(cdev, PCI_D0);
981
982 pci_set_drvdata(pdev, NULL);
983
984 /* Release edev's reference to XDP's bpf if such exist */
985 if (edev->xdp_prog)
986 bpf_prog_put(edev->xdp_prog);
987
988 /* Use global ops since we've freed edev */
989 qed_ops->common->slowpath_stop(cdev);
990 if (system_state == SYSTEM_POWER_OFF)
991 return;
992 qed_ops->common->remove(cdev);
993
994 /* Since this can happen out-of-sync with other flows,
995 * don't release the netdevice until after slowpath stop
996 * has been called to guarantee various other contexts
997 * [e.g., QED register callbacks] won't break anything when
998 * accessing the netdevice.
999 */
1000 free_netdev(ndev);
1001
1002 dev_info(&pdev->dev, "Ending qede_remove successfully\n");
1003 }
1004
1005 static void qede_remove(struct pci_dev *pdev)
1006 {
1007 __qede_remove(pdev, QEDE_REMOVE_NORMAL);
1008 }
1009
1010 static void qede_shutdown(struct pci_dev *pdev)
1011 {
1012 __qede_remove(pdev, QEDE_REMOVE_NORMAL);
1013 }
1014
1015 /* -------------------------------------------------------------------------
1016 * START OF LOAD / UNLOAD
1017 * -------------------------------------------------------------------------
1018 */
1019
1020 static int qede_set_num_queues(struct qede_dev *edev)
1021 {
1022 int rc;
1023 u16 rss_num;
1024
1025 /* Setup queues according to possible resources*/
1026 if (edev->req_queues)
1027 rss_num = edev->req_queues;
1028 else
1029 rss_num = netif_get_num_default_rss_queues() *
1030 edev->dev_info.common.num_hwfns;
1031
1032 rss_num = min_t(u16, QEDE_MAX_RSS_CNT(edev), rss_num);
1033
1034 rc = edev->ops->common->set_fp_int(edev->cdev, rss_num);
1035 if (rc > 0) {
1036 /* Managed to request interrupts for our queues */
1037 edev->num_queues = rc;
1038 DP_INFO(edev, "Managed %d [of %d] RSS queues\n",
1039 QEDE_QUEUE_CNT(edev), rss_num);
1040 rc = 0;
1041 }
1042
1043 edev->fp_num_tx = edev->req_num_tx;
1044 edev->fp_num_rx = edev->req_num_rx;
1045
1046 return rc;
1047 }
1048
1049 static void qede_free_mem_sb(struct qede_dev *edev,
1050 struct qed_sb_info *sb_info)
1051 {
1052 if (sb_info->sb_virt)
1053 dma_free_coherent(&edev->pdev->dev, sizeof(*sb_info->sb_virt),
1054 (void *)sb_info->sb_virt, sb_info->sb_phys);
1055 }
1056
1057 /* This function allocates fast-path status block memory */
1058 static int qede_alloc_mem_sb(struct qede_dev *edev,
1059 struct qed_sb_info *sb_info, u16 sb_id)
1060 {
1061 struct status_block *sb_virt;
1062 dma_addr_t sb_phys;
1063 int rc;
1064
1065 sb_virt = dma_alloc_coherent(&edev->pdev->dev,
1066 sizeof(*sb_virt), &sb_phys, GFP_KERNEL);
1067 if (!sb_virt) {
1068 DP_ERR(edev, "Status block allocation failed\n");
1069 return -ENOMEM;
1070 }
1071
1072 rc = edev->ops->common->sb_init(edev->cdev, sb_info,
1073 sb_virt, sb_phys, sb_id,
1074 QED_SB_TYPE_L2_QUEUE);
1075 if (rc) {
1076 DP_ERR(edev, "Status block initialization failed\n");
1077 dma_free_coherent(&edev->pdev->dev, sizeof(*sb_virt),
1078 sb_virt, sb_phys);
1079 return rc;
1080 }
1081
1082 return 0;
1083 }
1084
1085 static void qede_free_rx_buffers(struct qede_dev *edev,
1086 struct qede_rx_queue *rxq)
1087 {
1088 u16 i;
1089
1090 for (i = rxq->sw_rx_cons; i != rxq->sw_rx_prod; i++) {
1091 struct sw_rx_data *rx_buf;
1092 struct page *data;
1093
1094 rx_buf = &rxq->sw_rx_ring[i & NUM_RX_BDS_MAX];
1095 data = rx_buf->data;
1096
1097 dma_unmap_page(&edev->pdev->dev,
1098 rx_buf->mapping, PAGE_SIZE, rxq->data_direction);
1099
1100 rx_buf->data = NULL;
1101 __free_page(data);
1102 }
1103 }
1104
1105 static void qede_free_sge_mem(struct qede_dev *edev, struct qede_rx_queue *rxq)
1106 {
1107 int i;
1108
1109 if (edev->gro_disable)
1110 return;
1111
1112 for (i = 0; i < ETH_TPA_MAX_AGGS_NUM; i++) {
1113 struct qede_agg_info *tpa_info = &rxq->tpa_info[i];
1114 struct sw_rx_data *replace_buf = &tpa_info->buffer;
1115
1116 if (replace_buf->data) {
1117 dma_unmap_page(&edev->pdev->dev,
1118 replace_buf->mapping,
1119 PAGE_SIZE, DMA_FROM_DEVICE);
1120 __free_page(replace_buf->data);
1121 }
1122 }
1123 }
1124
1125 static void qede_free_mem_rxq(struct qede_dev *edev, struct qede_rx_queue *rxq)
1126 {
1127 qede_free_sge_mem(edev, rxq);
1128
1129 /* Free rx buffers */
1130 qede_free_rx_buffers(edev, rxq);
1131
1132 /* Free the parallel SW ring */
1133 kfree(rxq->sw_rx_ring);
1134
1135 /* Free the real RQ ring used by FW */
1136 edev->ops->common->chain_free(edev->cdev, &rxq->rx_bd_ring);
1137 edev->ops->common->chain_free(edev->cdev, &rxq->rx_comp_ring);
1138 }
1139
1140 static int qede_alloc_sge_mem(struct qede_dev *edev, struct qede_rx_queue *rxq)
1141 {
1142 dma_addr_t mapping;
1143 int i;
1144
1145 /* Don't perform FW aggregations in case of XDP */
1146 if (edev->xdp_prog)
1147 edev->gro_disable = 1;
1148
1149 if (edev->gro_disable)
1150 return 0;
1151
1152 if (edev->ndev->mtu > PAGE_SIZE) {
1153 edev->gro_disable = 1;
1154 return 0;
1155 }
1156
1157 for (i = 0; i < ETH_TPA_MAX_AGGS_NUM; i++) {
1158 struct qede_agg_info *tpa_info = &rxq->tpa_info[i];
1159 struct sw_rx_data *replace_buf = &tpa_info->buffer;
1160
1161 replace_buf->data = alloc_pages(GFP_ATOMIC, 0);
1162 if (unlikely(!replace_buf->data)) {
1163 DP_NOTICE(edev,
1164 "Failed to allocate TPA skb pool [replacement buffer]\n");
1165 goto err;
1166 }
1167
1168 mapping = dma_map_page(&edev->pdev->dev, replace_buf->data, 0,
1169 PAGE_SIZE, DMA_FROM_DEVICE);
1170 if (unlikely(dma_mapping_error(&edev->pdev->dev, mapping))) {
1171 DP_NOTICE(edev,
1172 "Failed to map TPA replacement buffer\n");
1173 goto err;
1174 }
1175
1176 replace_buf->mapping = mapping;
1177 tpa_info->buffer.page_offset = 0;
1178 tpa_info->buffer_mapping = mapping;
1179 tpa_info->state = QEDE_AGG_STATE_NONE;
1180 }
1181
1182 return 0;
1183 err:
1184 qede_free_sge_mem(edev, rxq);
1185 edev->gro_disable = 1;
1186 return -ENOMEM;
1187 }
1188
1189 /* This function allocates all memory needed per Rx queue */
1190 static int qede_alloc_mem_rxq(struct qede_dev *edev, struct qede_rx_queue *rxq)
1191 {
1192 int i, rc, size;
1193
1194 rxq->num_rx_buffers = edev->q_num_rx_buffers;
1195
1196 rxq->rx_buf_size = NET_IP_ALIGN + ETH_OVERHEAD + edev->ndev->mtu;
1197 rxq->rx_headroom = edev->xdp_prog ? XDP_PACKET_HEADROOM : 0;
1198
1199 /* Make sure that the headroom and payload fit in a single page */
1200 if (rxq->rx_buf_size + rxq->rx_headroom > PAGE_SIZE)
1201 rxq->rx_buf_size = PAGE_SIZE - rxq->rx_headroom;
1202
1203 /* Segment size to spilt a page in multiple equal parts,
1204 * unless XDP is used in which case we'd use the entire page.
1205 */
1206 if (!edev->xdp_prog)
1207 rxq->rx_buf_seg_size = roundup_pow_of_two(rxq->rx_buf_size);
1208 else
1209 rxq->rx_buf_seg_size = PAGE_SIZE;
1210
1211 /* Allocate the parallel driver ring for Rx buffers */
1212 size = sizeof(*rxq->sw_rx_ring) * RX_RING_SIZE;
1213 rxq->sw_rx_ring = kzalloc(size, GFP_KERNEL);
1214 if (!rxq->sw_rx_ring) {
1215 DP_ERR(edev, "Rx buffers ring allocation failed\n");
1216 rc = -ENOMEM;
1217 goto err;
1218 }
1219
1220 /* Allocate FW Rx ring */
1221 rc = edev->ops->common->chain_alloc(edev->cdev,
1222 QED_CHAIN_USE_TO_CONSUME_PRODUCE,
1223 QED_CHAIN_MODE_NEXT_PTR,
1224 QED_CHAIN_CNT_TYPE_U16,
1225 RX_RING_SIZE,
1226 sizeof(struct eth_rx_bd),
1227 &rxq->rx_bd_ring);
1228
1229 if (rc)
1230 goto err;
1231
1232 /* Allocate FW completion ring */
1233 rc = edev->ops->common->chain_alloc(edev->cdev,
1234 QED_CHAIN_USE_TO_CONSUME,
1235 QED_CHAIN_MODE_PBL,
1236 QED_CHAIN_CNT_TYPE_U16,
1237 RX_RING_SIZE,
1238 sizeof(union eth_rx_cqe),
1239 &rxq->rx_comp_ring);
1240 if (rc)
1241 goto err;
1242
1243 /* Allocate buffers for the Rx ring */
1244 rxq->filled_buffers = 0;
1245 for (i = 0; i < rxq->num_rx_buffers; i++) {
1246 rc = qede_alloc_rx_buffer(rxq, false);
1247 if (rc) {
1248 DP_ERR(edev,
1249 "Rx buffers allocation failed at index %d\n", i);
1250 goto err;
1251 }
1252 }
1253
1254 rc = qede_alloc_sge_mem(edev, rxq);
1255 err:
1256 return rc;
1257 }
1258
1259 static void qede_free_mem_txq(struct qede_dev *edev, struct qede_tx_queue *txq)
1260 {
1261 /* Free the parallel SW ring */
1262 if (txq->is_xdp)
1263 kfree(txq->sw_tx_ring.xdp);
1264 else
1265 kfree(txq->sw_tx_ring.skbs);
1266
1267 /* Free the real RQ ring used by FW */
1268 edev->ops->common->chain_free(edev->cdev, &txq->tx_pbl);
1269 }
1270
1271 /* This function allocates all memory needed per Tx queue */
1272 static int qede_alloc_mem_txq(struct qede_dev *edev, struct qede_tx_queue *txq)
1273 {
1274 union eth_tx_bd_types *p_virt;
1275 int size, rc;
1276
1277 txq->num_tx_buffers = edev->q_num_tx_buffers;
1278
1279 /* Allocate the parallel driver ring for Tx buffers */
1280 if (txq->is_xdp) {
1281 size = sizeof(*txq->sw_tx_ring.xdp) * TX_RING_SIZE;
1282 txq->sw_tx_ring.xdp = kzalloc(size, GFP_KERNEL);
1283 if (!txq->sw_tx_ring.xdp)
1284 goto err;
1285 } else {
1286 size = sizeof(*txq->sw_tx_ring.skbs) * TX_RING_SIZE;
1287 txq->sw_tx_ring.skbs = kzalloc(size, GFP_KERNEL);
1288 if (!txq->sw_tx_ring.skbs)
1289 goto err;
1290 }
1291
1292 rc = edev->ops->common->chain_alloc(edev->cdev,
1293 QED_CHAIN_USE_TO_CONSUME_PRODUCE,
1294 QED_CHAIN_MODE_PBL,
1295 QED_CHAIN_CNT_TYPE_U16,
1296 TX_RING_SIZE,
1297 sizeof(*p_virt), &txq->tx_pbl);
1298 if (rc)
1299 goto err;
1300
1301 return 0;
1302
1303 err:
1304 qede_free_mem_txq(edev, txq);
1305 return -ENOMEM;
1306 }
1307
1308 /* This function frees all memory of a single fp */
1309 static void qede_free_mem_fp(struct qede_dev *edev, struct qede_fastpath *fp)
1310 {
1311 qede_free_mem_sb(edev, fp->sb_info);
1312
1313 if (fp->type & QEDE_FASTPATH_RX)
1314 qede_free_mem_rxq(edev, fp->rxq);
1315
1316 if (fp->type & QEDE_FASTPATH_TX)
1317 qede_free_mem_txq(edev, fp->txq);
1318 }
1319
1320 /* This function allocates all memory needed for a single fp (i.e. an entity
1321 * which contains status block, one rx queue and/or multiple per-TC tx queues.
1322 */
1323 static int qede_alloc_mem_fp(struct qede_dev *edev, struct qede_fastpath *fp)
1324 {
1325 int rc = 0;
1326
1327 rc = qede_alloc_mem_sb(edev, fp->sb_info, fp->id);
1328 if (rc)
1329 goto out;
1330
1331 if (fp->type & QEDE_FASTPATH_RX) {
1332 rc = qede_alloc_mem_rxq(edev, fp->rxq);
1333 if (rc)
1334 goto out;
1335 }
1336
1337 if (fp->type & QEDE_FASTPATH_XDP) {
1338 rc = qede_alloc_mem_txq(edev, fp->xdp_tx);
1339 if (rc)
1340 goto out;
1341 }
1342
1343 if (fp->type & QEDE_FASTPATH_TX) {
1344 rc = qede_alloc_mem_txq(edev, fp->txq);
1345 if (rc)
1346 goto out;
1347 }
1348
1349 out:
1350 return rc;
1351 }
1352
1353 static void qede_free_mem_load(struct qede_dev *edev)
1354 {
1355 int i;
1356
1357 for_each_queue(i) {
1358 struct qede_fastpath *fp = &edev->fp_array[i];
1359
1360 qede_free_mem_fp(edev, fp);
1361 }
1362 }
1363
1364 /* This function allocates all qede memory at NIC load. */
1365 static int qede_alloc_mem_load(struct qede_dev *edev)
1366 {
1367 int rc = 0, queue_id;
1368
1369 for (queue_id = 0; queue_id < QEDE_QUEUE_CNT(edev); queue_id++) {
1370 struct qede_fastpath *fp = &edev->fp_array[queue_id];
1371
1372 rc = qede_alloc_mem_fp(edev, fp);
1373 if (rc) {
1374 DP_ERR(edev,
1375 "Failed to allocate memory for fastpath - rss id = %d\n",
1376 queue_id);
1377 qede_free_mem_load(edev);
1378 return rc;
1379 }
1380 }
1381
1382 return 0;
1383 }
1384
1385 /* This function inits fp content and resets the SB, RXQ and TXQ structures */
1386 static void qede_init_fp(struct qede_dev *edev)
1387 {
1388 int queue_id, rxq_index = 0, txq_index = 0;
1389 struct qede_fastpath *fp;
1390
1391 for_each_queue(queue_id) {
1392 fp = &edev->fp_array[queue_id];
1393
1394 fp->edev = edev;
1395 fp->id = queue_id;
1396
1397 if (fp->type & QEDE_FASTPATH_XDP) {
1398 fp->xdp_tx->index = QEDE_TXQ_IDX_TO_XDP(edev,
1399 rxq_index);
1400 fp->xdp_tx->is_xdp = 1;
1401 }
1402
1403 if (fp->type & QEDE_FASTPATH_RX) {
1404 fp->rxq->rxq_id = rxq_index++;
1405
1406 /* Determine how to map buffers for this queue */
1407 if (fp->type & QEDE_FASTPATH_XDP)
1408 fp->rxq->data_direction = DMA_BIDIRECTIONAL;
1409 else
1410 fp->rxq->data_direction = DMA_FROM_DEVICE;
1411 fp->rxq->dev = &edev->pdev->dev;
1412 }
1413
1414 if (fp->type & QEDE_FASTPATH_TX) {
1415 fp->txq->index = txq_index++;
1416 if (edev->dev_info.is_legacy)
1417 fp->txq->is_legacy = 1;
1418 fp->txq->dev = &edev->pdev->dev;
1419 }
1420
1421 snprintf(fp->name, sizeof(fp->name), "%s-fp-%d",
1422 edev->ndev->name, queue_id);
1423 }
1424
1425 edev->gro_disable = !(edev->ndev->features & NETIF_F_GRO);
1426 }
1427
1428 static int qede_set_real_num_queues(struct qede_dev *edev)
1429 {
1430 int rc = 0;
1431
1432 rc = netif_set_real_num_tx_queues(edev->ndev, QEDE_TSS_COUNT(edev));
1433 if (rc) {
1434 DP_NOTICE(edev, "Failed to set real number of Tx queues\n");
1435 return rc;
1436 }
1437
1438 rc = netif_set_real_num_rx_queues(edev->ndev, QEDE_RSS_COUNT(edev));
1439 if (rc) {
1440 DP_NOTICE(edev, "Failed to set real number of Rx queues\n");
1441 return rc;
1442 }
1443
1444 return 0;
1445 }
1446
1447 static void qede_napi_disable_remove(struct qede_dev *edev)
1448 {
1449 int i;
1450
1451 for_each_queue(i) {
1452 napi_disable(&edev->fp_array[i].napi);
1453
1454 netif_napi_del(&edev->fp_array[i].napi);
1455 }
1456 }
1457
1458 static void qede_napi_add_enable(struct qede_dev *edev)
1459 {
1460 int i;
1461
1462 /* Add NAPI objects */
1463 for_each_queue(i) {
1464 netif_napi_add(edev->ndev, &edev->fp_array[i].napi,
1465 qede_poll, NAPI_POLL_WEIGHT);
1466 napi_enable(&edev->fp_array[i].napi);
1467 }
1468 }
1469
1470 static void qede_sync_free_irqs(struct qede_dev *edev)
1471 {
1472 int i;
1473
1474 for (i = 0; i < edev->int_info.used_cnt; i++) {
1475 if (edev->int_info.msix_cnt) {
1476 synchronize_irq(edev->int_info.msix[i].vector);
1477 free_irq(edev->int_info.msix[i].vector,
1478 &edev->fp_array[i]);
1479 } else {
1480 edev->ops->common->simd_handler_clean(edev->cdev, i);
1481 }
1482 }
1483
1484 edev->int_info.used_cnt = 0;
1485 }
1486
1487 static int qede_req_msix_irqs(struct qede_dev *edev)
1488 {
1489 int i, rc;
1490
1491 /* Sanitize number of interrupts == number of prepared RSS queues */
1492 if (QEDE_QUEUE_CNT(edev) > edev->int_info.msix_cnt) {
1493 DP_ERR(edev,
1494 "Interrupt mismatch: %d RSS queues > %d MSI-x vectors\n",
1495 QEDE_QUEUE_CNT(edev), edev->int_info.msix_cnt);
1496 return -EINVAL;
1497 }
1498
1499 for (i = 0; i < QEDE_QUEUE_CNT(edev); i++) {
1500 #ifdef CONFIG_RFS_ACCEL
1501 struct qede_fastpath *fp = &edev->fp_array[i];
1502
1503 if (edev->ndev->rx_cpu_rmap && (fp->type & QEDE_FASTPATH_RX)) {
1504 rc = irq_cpu_rmap_add(edev->ndev->rx_cpu_rmap,
1505 edev->int_info.msix[i].vector);
1506 if (rc) {
1507 DP_ERR(edev, "Failed to add CPU rmap\n");
1508 qede_free_arfs(edev);
1509 }
1510 }
1511 #endif
1512 rc = request_irq(edev->int_info.msix[i].vector,
1513 qede_msix_fp_int, 0, edev->fp_array[i].name,
1514 &edev->fp_array[i]);
1515 if (rc) {
1516 DP_ERR(edev, "Request fp %d irq failed\n", i);
1517 qede_sync_free_irqs(edev);
1518 return rc;
1519 }
1520 DP_VERBOSE(edev, NETIF_MSG_INTR,
1521 "Requested fp irq for %s [entry %d]. Cookie is at %p\n",
1522 edev->fp_array[i].name, i,
1523 &edev->fp_array[i]);
1524 edev->int_info.used_cnt++;
1525 }
1526
1527 return 0;
1528 }
1529
1530 static void qede_simd_fp_handler(void *cookie)
1531 {
1532 struct qede_fastpath *fp = (struct qede_fastpath *)cookie;
1533
1534 napi_schedule_irqoff(&fp->napi);
1535 }
1536
1537 static int qede_setup_irqs(struct qede_dev *edev)
1538 {
1539 int i, rc = 0;
1540
1541 /* Learn Interrupt configuration */
1542 rc = edev->ops->common->get_fp_int(edev->cdev, &edev->int_info);
1543 if (rc)
1544 return rc;
1545
1546 if (edev->int_info.msix_cnt) {
1547 rc = qede_req_msix_irqs(edev);
1548 if (rc)
1549 return rc;
1550 edev->ndev->irq = edev->int_info.msix[0].vector;
1551 } else {
1552 const struct qed_common_ops *ops;
1553
1554 /* qed should learn receive the RSS ids and callbacks */
1555 ops = edev->ops->common;
1556 for (i = 0; i < QEDE_QUEUE_CNT(edev); i++)
1557 ops->simd_handler_config(edev->cdev,
1558 &edev->fp_array[i], i,
1559 qede_simd_fp_handler);
1560 edev->int_info.used_cnt = QEDE_QUEUE_CNT(edev);
1561 }
1562 return 0;
1563 }
1564
1565 static int qede_drain_txq(struct qede_dev *edev,
1566 struct qede_tx_queue *txq, bool allow_drain)
1567 {
1568 int rc, cnt = 1000;
1569
1570 while (txq->sw_tx_cons != txq->sw_tx_prod) {
1571 if (!cnt) {
1572 if (allow_drain) {
1573 DP_NOTICE(edev,
1574 "Tx queue[%d] is stuck, requesting MCP to drain\n",
1575 txq->index);
1576 rc = edev->ops->common->drain(edev->cdev);
1577 if (rc)
1578 return rc;
1579 return qede_drain_txq(edev, txq, false);
1580 }
1581 DP_NOTICE(edev,
1582 "Timeout waiting for tx queue[%d]: PROD=%d, CONS=%d\n",
1583 txq->index, txq->sw_tx_prod,
1584 txq->sw_tx_cons);
1585 return -ENODEV;
1586 }
1587 cnt--;
1588 usleep_range(1000, 2000);
1589 barrier();
1590 }
1591
1592 /* FW finished processing, wait for HW to transmit all tx packets */
1593 usleep_range(1000, 2000);
1594
1595 return 0;
1596 }
1597
1598 static int qede_stop_txq(struct qede_dev *edev,
1599 struct qede_tx_queue *txq, int rss_id)
1600 {
1601 return edev->ops->q_tx_stop(edev->cdev, rss_id, txq->handle);
1602 }
1603
1604 static int qede_stop_queues(struct qede_dev *edev)
1605 {
1606 struct qed_update_vport_params *vport_update_params;
1607 struct qed_dev *cdev = edev->cdev;
1608 struct qede_fastpath *fp;
1609 int rc, i;
1610
1611 /* Disable the vport */
1612 vport_update_params = vzalloc(sizeof(*vport_update_params));
1613 if (!vport_update_params)
1614 return -ENOMEM;
1615
1616 vport_update_params->vport_id = 0;
1617 vport_update_params->update_vport_active_flg = 1;
1618 vport_update_params->vport_active_flg = 0;
1619 vport_update_params->update_rss_flg = 0;
1620
1621 rc = edev->ops->vport_update(cdev, vport_update_params);
1622 vfree(vport_update_params);
1623
1624 if (rc) {
1625 DP_ERR(edev, "Failed to update vport\n");
1626 return rc;
1627 }
1628
1629 /* Flush Tx queues. If needed, request drain from MCP */
1630 for_each_queue(i) {
1631 fp = &edev->fp_array[i];
1632
1633 if (fp->type & QEDE_FASTPATH_TX) {
1634 rc = qede_drain_txq(edev, fp->txq, true);
1635 if (rc)
1636 return rc;
1637 }
1638
1639 if (fp->type & QEDE_FASTPATH_XDP) {
1640 rc = qede_drain_txq(edev, fp->xdp_tx, true);
1641 if (rc)
1642 return rc;
1643 }
1644 }
1645
1646 /* Stop all Queues in reverse order */
1647 for (i = QEDE_QUEUE_CNT(edev) - 1; i >= 0; i--) {
1648 fp = &edev->fp_array[i];
1649
1650 /* Stop the Tx Queue(s) */
1651 if (fp->type & QEDE_FASTPATH_TX) {
1652 rc = qede_stop_txq(edev, fp->txq, i);
1653 if (rc)
1654 return rc;
1655 }
1656
1657 /* Stop the Rx Queue */
1658 if (fp->type & QEDE_FASTPATH_RX) {
1659 rc = edev->ops->q_rx_stop(cdev, i, fp->rxq->handle);
1660 if (rc) {
1661 DP_ERR(edev, "Failed to stop RXQ #%d\n", i);
1662 return rc;
1663 }
1664 }
1665
1666 /* Stop the XDP forwarding queue */
1667 if (fp->type & QEDE_FASTPATH_XDP) {
1668 rc = qede_stop_txq(edev, fp->xdp_tx, i);
1669 if (rc)
1670 return rc;
1671
1672 bpf_prog_put(fp->rxq->xdp_prog);
1673 }
1674 }
1675
1676 /* Stop the vport */
1677 rc = edev->ops->vport_stop(cdev, 0);
1678 if (rc)
1679 DP_ERR(edev, "Failed to stop VPORT\n");
1680
1681 return rc;
1682 }
1683
1684 static int qede_start_txq(struct qede_dev *edev,
1685 struct qede_fastpath *fp,
1686 struct qede_tx_queue *txq, u8 rss_id, u16 sb_idx)
1687 {
1688 dma_addr_t phys_table = qed_chain_get_pbl_phys(&txq->tx_pbl);
1689 u32 page_cnt = qed_chain_get_page_cnt(&txq->tx_pbl);
1690 struct qed_queue_start_common_params params;
1691 struct qed_txq_start_ret_params ret_params;
1692 int rc;
1693
1694 memset(&params, 0, sizeof(params));
1695 memset(&ret_params, 0, sizeof(ret_params));
1696
1697 /* Let the XDP queue share the queue-zone with one of the regular txq.
1698 * We don't really care about its coalescing.
1699 */
1700 if (txq->is_xdp)
1701 params.queue_id = QEDE_TXQ_XDP_TO_IDX(edev, txq);
1702 else
1703 params.queue_id = txq->index;
1704
1705 params.sb = fp->sb_info->igu_sb_id;
1706 params.sb_idx = sb_idx;
1707
1708 rc = edev->ops->q_tx_start(edev->cdev, rss_id, &params, phys_table,
1709 page_cnt, &ret_params);
1710 if (rc) {
1711 DP_ERR(edev, "Start TXQ #%d failed %d\n", txq->index, rc);
1712 return rc;
1713 }
1714
1715 txq->doorbell_addr = ret_params.p_doorbell;
1716 txq->handle = ret_params.p_handle;
1717
1718 /* Determine the FW consumer address associated */
1719 txq->hw_cons_ptr = &fp->sb_info->sb_virt->pi_array[sb_idx];
1720
1721 /* Prepare the doorbell parameters */
1722 SET_FIELD(txq->tx_db.data.params, ETH_DB_DATA_DEST, DB_DEST_XCM);
1723 SET_FIELD(txq->tx_db.data.params, ETH_DB_DATA_AGG_CMD, DB_AGG_CMD_SET);
1724 SET_FIELD(txq->tx_db.data.params, ETH_DB_DATA_AGG_VAL_SEL,
1725 DQ_XCM_ETH_TX_BD_PROD_CMD);
1726 txq->tx_db.data.agg_flags = DQ_XCM_ETH_DQ_CF_CMD;
1727
1728 return rc;
1729 }
1730
1731 static int qede_start_queues(struct qede_dev *edev, bool clear_stats)
1732 {
1733 int vlan_removal_en = 1;
1734 struct qed_dev *cdev = edev->cdev;
1735 struct qed_dev_info *qed_info = &edev->dev_info.common;
1736 struct qed_update_vport_params *vport_update_params;
1737 struct qed_queue_start_common_params q_params;
1738 struct qed_start_vport_params start = {0};
1739 int rc, i;
1740
1741 if (!edev->num_queues) {
1742 DP_ERR(edev,
1743 "Cannot update V-VPORT as active as there are no Rx queues\n");
1744 return -EINVAL;
1745 }
1746
1747 vport_update_params = vzalloc(sizeof(*vport_update_params));
1748 if (!vport_update_params)
1749 return -ENOMEM;
1750
1751 start.handle_ptp_pkts = !!(edev->ptp);
1752 start.gro_enable = !edev->gro_disable;
1753 start.mtu = edev->ndev->mtu;
1754 start.vport_id = 0;
1755 start.drop_ttl0 = true;
1756 start.remove_inner_vlan = vlan_removal_en;
1757 start.clear_stats = clear_stats;
1758
1759 rc = edev->ops->vport_start(cdev, &start);
1760
1761 if (rc) {
1762 DP_ERR(edev, "Start V-PORT failed %d\n", rc);
1763 goto out;
1764 }
1765
1766 DP_VERBOSE(edev, NETIF_MSG_IFUP,
1767 "Start vport ramrod passed, vport_id = %d, MTU = %d, vlan_removal_en = %d\n",
1768 start.vport_id, edev->ndev->mtu + 0xe, vlan_removal_en);
1769
1770 for_each_queue(i) {
1771 struct qede_fastpath *fp = &edev->fp_array[i];
1772 dma_addr_t p_phys_table;
1773 u32 page_cnt;
1774
1775 if (fp->type & QEDE_FASTPATH_RX) {
1776 struct qed_rxq_start_ret_params ret_params;
1777 struct qede_rx_queue *rxq = fp->rxq;
1778 __le16 *val;
1779
1780 memset(&ret_params, 0, sizeof(ret_params));
1781 memset(&q_params, 0, sizeof(q_params));
1782 q_params.queue_id = rxq->rxq_id;
1783 q_params.vport_id = 0;
1784 q_params.sb = fp->sb_info->igu_sb_id;
1785 q_params.sb_idx = RX_PI;
1786
1787 p_phys_table =
1788 qed_chain_get_pbl_phys(&rxq->rx_comp_ring);
1789 page_cnt = qed_chain_get_page_cnt(&rxq->rx_comp_ring);
1790
1791 rc = edev->ops->q_rx_start(cdev, i, &q_params,
1792 rxq->rx_buf_size,
1793 rxq->rx_bd_ring.p_phys_addr,
1794 p_phys_table,
1795 page_cnt, &ret_params);
1796 if (rc) {
1797 DP_ERR(edev, "Start RXQ #%d failed %d\n", i,
1798 rc);
1799 goto out;
1800 }
1801
1802 /* Use the return parameters */
1803 rxq->hw_rxq_prod_addr = ret_params.p_prod;
1804 rxq->handle = ret_params.p_handle;
1805
1806 val = &fp->sb_info->sb_virt->pi_array[RX_PI];
1807 rxq->hw_cons_ptr = val;
1808
1809 qede_update_rx_prod(edev, rxq);
1810 }
1811
1812 if (fp->type & QEDE_FASTPATH_XDP) {
1813 rc = qede_start_txq(edev, fp, fp->xdp_tx, i, XDP_PI);
1814 if (rc)
1815 goto out;
1816
1817 fp->rxq->xdp_prog = bpf_prog_add(edev->xdp_prog, 1);
1818 if (IS_ERR(fp->rxq->xdp_prog)) {
1819 rc = PTR_ERR(fp->rxq->xdp_prog);
1820 fp->rxq->xdp_prog = NULL;
1821 goto out;
1822 }
1823 }
1824
1825 if (fp->type & QEDE_FASTPATH_TX) {
1826 rc = qede_start_txq(edev, fp, fp->txq, i, TX_PI(0));
1827 if (rc)
1828 goto out;
1829 }
1830 }
1831
1832 /* Prepare and send the vport enable */
1833 vport_update_params->vport_id = start.vport_id;
1834 vport_update_params->update_vport_active_flg = 1;
1835 vport_update_params->vport_active_flg = 1;
1836
1837 if ((qed_info->mf_mode == QED_MF_NPAR || pci_num_vf(edev->pdev)) &&
1838 qed_info->tx_switching) {
1839 vport_update_params->update_tx_switching_flg = 1;
1840 vport_update_params->tx_switching_flg = 1;
1841 }
1842
1843 qede_fill_rss_params(edev, &vport_update_params->rss_params,
1844 &vport_update_params->update_rss_flg);
1845
1846 rc = edev->ops->vport_update(cdev, vport_update_params);
1847 if (rc)
1848 DP_ERR(edev, "Update V-PORT failed %d\n", rc);
1849
1850 out:
1851 vfree(vport_update_params);
1852 return rc;
1853 }
1854
1855 enum qede_unload_mode {
1856 QEDE_UNLOAD_NORMAL,
1857 };
1858
1859 static void qede_unload(struct qede_dev *edev, enum qede_unload_mode mode,
1860 bool is_locked)
1861 {
1862 struct qed_link_params link_params;
1863 int rc;
1864
1865 DP_INFO(edev, "Starting qede unload\n");
1866
1867 if (!is_locked)
1868 __qede_lock(edev);
1869
1870 qede_roce_dev_event_close(edev);
1871 edev->state = QEDE_STATE_CLOSED;
1872
1873 /* Close OS Tx */
1874 netif_tx_disable(edev->ndev);
1875 netif_carrier_off(edev->ndev);
1876
1877 /* Reset the link */
1878 memset(&link_params, 0, sizeof(link_params));
1879 link_params.link_up = false;
1880 edev->ops->common->set_link(edev->cdev, &link_params);
1881 rc = qede_stop_queues(edev);
1882 if (rc) {
1883 qede_sync_free_irqs(edev);
1884 goto out;
1885 }
1886
1887 DP_INFO(edev, "Stopped Queues\n");
1888
1889 qede_vlan_mark_nonconfigured(edev);
1890 edev->ops->fastpath_stop(edev->cdev);
1891 #ifdef CONFIG_RFS_ACCEL
1892 if (!IS_VF(edev) && edev->dev_info.common.num_hwfns == 1) {
1893 qede_poll_for_freeing_arfs_filters(edev);
1894 qede_free_arfs(edev);
1895 }
1896 #endif
1897 /* Release the interrupts */
1898 qede_sync_free_irqs(edev);
1899 edev->ops->common->set_fp_int(edev->cdev, 0);
1900
1901 qede_napi_disable_remove(edev);
1902
1903 qede_free_mem_load(edev);
1904 qede_free_fp_array(edev);
1905
1906 out:
1907 if (!is_locked)
1908 __qede_unlock(edev);
1909 DP_INFO(edev, "Ending qede unload\n");
1910 }
1911
1912 enum qede_load_mode {
1913 QEDE_LOAD_NORMAL,
1914 QEDE_LOAD_RELOAD,
1915 };
1916
1917 static int qede_load(struct qede_dev *edev, enum qede_load_mode mode,
1918 bool is_locked)
1919 {
1920 struct qed_link_params link_params;
1921 int rc;
1922
1923 DP_INFO(edev, "Starting qede load\n");
1924
1925 if (!is_locked)
1926 __qede_lock(edev);
1927
1928 rc = qede_set_num_queues(edev);
1929 if (rc)
1930 goto out;
1931
1932 rc = qede_alloc_fp_array(edev);
1933 if (rc)
1934 goto out;
1935
1936 qede_init_fp(edev);
1937
1938 rc = qede_alloc_mem_load(edev);
1939 if (rc)
1940 goto err1;
1941 DP_INFO(edev, "Allocated %d Rx, %d Tx queues\n",
1942 QEDE_RSS_COUNT(edev), QEDE_TSS_COUNT(edev));
1943
1944 rc = qede_set_real_num_queues(edev);
1945 if (rc)
1946 goto err2;
1947
1948 #ifdef CONFIG_RFS_ACCEL
1949 if (!IS_VF(edev) && edev->dev_info.common.num_hwfns == 1) {
1950 rc = qede_alloc_arfs(edev);
1951 if (rc)
1952 DP_NOTICE(edev, "aRFS memory allocation failed\n");
1953 }
1954 #endif
1955 qede_napi_add_enable(edev);
1956 DP_INFO(edev, "Napi added and enabled\n");
1957
1958 rc = qede_setup_irqs(edev);
1959 if (rc)
1960 goto err3;
1961 DP_INFO(edev, "Setup IRQs succeeded\n");
1962
1963 rc = qede_start_queues(edev, mode != QEDE_LOAD_RELOAD);
1964 if (rc)
1965 goto err4;
1966 DP_INFO(edev, "Start VPORT, RXQ and TXQ succeeded\n");
1967
1968 /* Add primary mac and set Rx filters */
1969 ether_addr_copy(edev->primary_mac, edev->ndev->dev_addr);
1970
1971 /* Program un-configured VLANs */
1972 qede_configure_vlan_filters(edev);
1973
1974 /* Ask for link-up using current configuration */
1975 memset(&link_params, 0, sizeof(link_params));
1976 link_params.link_up = true;
1977 edev->ops->common->set_link(edev->cdev, &link_params);
1978
1979 qede_roce_dev_event_open(edev);
1980
1981 edev->state = QEDE_STATE_OPEN;
1982
1983 DP_INFO(edev, "Ending successfully qede load\n");
1984
1985 goto out;
1986 err4:
1987 qede_sync_free_irqs(edev);
1988 memset(&edev->int_info.msix_cnt, 0, sizeof(struct qed_int_info));
1989 err3:
1990 qede_napi_disable_remove(edev);
1991 err2:
1992 qede_free_mem_load(edev);
1993 err1:
1994 edev->ops->common->set_fp_int(edev->cdev, 0);
1995 qede_free_fp_array(edev);
1996 edev->num_queues = 0;
1997 edev->fp_num_tx = 0;
1998 edev->fp_num_rx = 0;
1999 out:
2000 if (!is_locked)
2001 __qede_unlock(edev);
2002
2003 return rc;
2004 }
2005
2006 /* 'func' should be able to run between unload and reload assuming interface
2007 * is actually running, or afterwards in case it's currently DOWN.
2008 */
2009 void qede_reload(struct qede_dev *edev,
2010 struct qede_reload_args *args, bool is_locked)
2011 {
2012 if (!is_locked)
2013 __qede_lock(edev);
2014
2015 /* Since qede_lock is held, internal state wouldn't change even
2016 * if netdev state would start transitioning. Check whether current
2017 * internal configuration indicates device is up, then reload.
2018 */
2019 if (edev->state == QEDE_STATE_OPEN) {
2020 qede_unload(edev, QEDE_UNLOAD_NORMAL, true);
2021 if (args)
2022 args->func(edev, args);
2023 qede_load(edev, QEDE_LOAD_RELOAD, true);
2024
2025 /* Since no one is going to do it for us, re-configure */
2026 qede_config_rx_mode(edev->ndev);
2027 } else if (args) {
2028 args->func(edev, args);
2029 }
2030
2031 if (!is_locked)
2032 __qede_unlock(edev);
2033 }
2034
2035 /* called with rtnl_lock */
2036 static int qede_open(struct net_device *ndev)
2037 {
2038 struct qede_dev *edev = netdev_priv(ndev);
2039 int rc;
2040
2041 netif_carrier_off(ndev);
2042
2043 edev->ops->common->set_power_state(edev->cdev, PCI_D0);
2044
2045 rc = qede_load(edev, QEDE_LOAD_NORMAL, false);
2046 if (rc)
2047 return rc;
2048
2049 udp_tunnel_get_rx_info(ndev);
2050
2051 edev->ops->common->update_drv_state(edev->cdev, true);
2052
2053 return 0;
2054 }
2055
2056 static int qede_close(struct net_device *ndev)
2057 {
2058 struct qede_dev *edev = netdev_priv(ndev);
2059
2060 qede_unload(edev, QEDE_UNLOAD_NORMAL, false);
2061
2062 edev->ops->common->update_drv_state(edev->cdev, false);
2063
2064 return 0;
2065 }
2066
2067 static void qede_link_update(void *dev, struct qed_link_output *link)
2068 {
2069 struct qede_dev *edev = dev;
2070
2071 if (!netif_running(edev->ndev)) {
2072 DP_VERBOSE(edev, NETIF_MSG_LINK, "Interface is not running\n");
2073 return;
2074 }
2075
2076 if (link->link_up) {
2077 if (!netif_carrier_ok(edev->ndev)) {
2078 DP_NOTICE(edev, "Link is up\n");
2079 netif_tx_start_all_queues(edev->ndev);
2080 netif_carrier_on(edev->ndev);
2081 }
2082 } else {
2083 if (netif_carrier_ok(edev->ndev)) {
2084 DP_NOTICE(edev, "Link is down\n");
2085 netif_tx_disable(edev->ndev);
2086 netif_carrier_off(edev->ndev);
2087 }
2088 }
2089 }
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