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rtc: stm32: fix misspelling and misalignment issues
[linux/fpc-iii.git] / drivers / net / ethernet / qlogic / qede / qede_main.c
bloba01e7d6e5442f079e9006811b82b4feb02dc23bc
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 "qede.h"
64 #include "qede_ptp.h"
65
66 static char version[] =
67 "QLogic FastLinQ 4xxxx Ethernet Driver qede " DRV_MODULE_VERSION "\n";
68
69 MODULE_DESCRIPTION("QLogic FastLinQ 4xxxx Ethernet Driver");
70 MODULE_LICENSE("GPL");
71 MODULE_VERSION(DRV_MODULE_VERSION);
72
73 static uint debug;
74 module_param(debug, uint, 0);
75 MODULE_PARM_DESC(debug, " Default debug msglevel");
76
77 static const struct qed_eth_ops *qed_ops;
78
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
88
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
99
100 #endif
101
102 enum qede_pci_private {
103 QEDE_PRIVATE_PF,
104 QEDE_PRIVATE_VF
105 };
106
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},
116 #endif
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},
120 #endif
121 { 0 }
122 };
123
124 MODULE_DEVICE_TABLE(pci, qede_pci_tbl);
125
126 static int qede_probe(struct pci_dev *pdev, const struct pci_device_id *id);
127
128 #define TX_TIMEOUT (5 * HZ)
129
130 /* Utilize last protocol index for XDP */
131 #define XDP_PI 11
132
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);
136
137 /* The qede lock is used to protect driver state change and driver flows that
138 * are not reentrant.
139 */
140 void __qede_lock(struct qede_dev *edev)
141 {
142 mutex_lock(&edev->qede_lock);
143 }
144
145 void __qede_unlock(struct qede_dev *edev)
146 {
147 mutex_unlock(&edev->qede_lock);
148 }
149
150 #ifdef CONFIG_QED_SRIOV
151 static int qede_set_vf_vlan(struct net_device *ndev, int vf, u16 vlan, u8 qos,
152 __be16 vlan_proto)
153 {
154 struct qede_dev *edev = netdev_priv(ndev);
155
156 if (vlan > 4095) {
157 DP_NOTICE(edev, "Illegal vlan value %d\n", vlan);
158 return -EINVAL;
159 }
160
161 if (vlan_proto != htons(ETH_P_8021Q))
162 return -EPROTONOSUPPORT;
163
164 DP_VERBOSE(edev, QED_MSG_IOV, "Setting Vlan 0x%04x to VF [%d]\n",
165 vlan, vf);
166
167 return edev->ops->iov->set_vlan(edev->cdev, vlan, vf);
168 }
169
170 static int qede_set_vf_mac(struct net_device *ndev, int vfidx, u8 *mac)
171 {
172 struct qede_dev *edev = netdev_priv(ndev);
173
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);
177
178 if (!is_valid_ether_addr(mac)) {
179 DP_VERBOSE(edev, QED_MSG_IOV, "MAC address isn't valid\n");
180 return -EINVAL;
181 }
182
183 return edev->ops->iov->set_mac(edev->cdev, mac, vfidx);
184 }
185
186 static int qede_sriov_configure(struct pci_dev *pdev, int num_vfs_param)
187 {
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;
191 int rc;
192
193 vport_params = vzalloc(sizeof(*vport_params));
194 if (!vport_params)
195 return -ENOMEM;
196 DP_VERBOSE(edev, QED_MSG_IOV, "Requested %d VFs\n", num_vfs_param);
197
198 rc = edev->ops->iov->configure(edev->cdev, num_vfs_param);
199
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);
207 }
208
209 vfree(vport_params);
210 return rc;
211 }
212 #endif
213
214 static struct pci_driver qede_pci_driver = {
215 .name = "qede",
216 .id_table = qede_pci_tbl,
217 .probe = qede_probe,
218 .remove = qede_remove,
219 .shutdown = qede_shutdown,
220 #ifdef CONFIG_QED_SRIOV
221 .sriov_configure = qede_sriov_configure,
222 #endif
223 };
224
225 static struct qed_eth_cb_ops qede_ll_ops = {
226 {
227 #ifdef CONFIG_RFS_ACCEL
228 .arfs_filter_op = qede_arfs_filter_op,
229 #endif
230 .link_update = qede_link_update,
231 },
232 .force_mac = qede_force_mac,
233 .ports_update = qede_udp_ports_update,
234 };
235
236 static int qede_netdev_event(struct notifier_block *this, unsigned long event,
237 void *ptr)
238 {
239 struct net_device *ndev = netdev_notifier_info_to_dev(ptr);
240 struct ethtool_drvinfo drvinfo;
241 struct qede_dev *edev;
242
243 if (event != NETDEV_CHANGENAME && event != NETDEV_CHANGEADDR)
244 goto done;
245
246 /* Check whether this is a qede device */
247 if (!ndev || !ndev->ethtool_ops || !ndev->ethtool_ops->get_drvinfo)
248 goto done;
249
250 memset(&drvinfo, 0, sizeof(drvinfo));
251 ndev->ethtool_ops->get_drvinfo(ndev, &drvinfo);
252 if (strcmp(drvinfo.driver, "qede"))
253 goto done;
254 edev = netdev_priv(ndev);
255
256 switch (event) {
257 case NETDEV_CHANGENAME:
258 /* Notify qed of the name change */
259 if (!edev->ops || !edev->ops->common)
260 goto done;
261 edev->ops->common->set_name(edev->cdev, edev->ndev->name);
262 break;
263 case NETDEV_CHANGEADDR:
264 edev = netdev_priv(ndev);
265 qede_rdma_event_changeaddr(edev);
266 break;
267 }
268
269 done:
270 return NOTIFY_DONE;
271 }
272
273 static struct notifier_block qede_netdev_notifier = {
274 .notifier_call = qede_netdev_event,
275 };
276
277 static
278 int __init qede_init(void)
279 {
280 int ret;
281
282 pr_info("qede_init: %s\n", version);
283
284 qed_ops = qed_get_eth_ops();
285 if (!qed_ops) {
286 pr_notice("Failed to get qed ethtool operations\n");
287 return -EINVAL;
288 }
289
290 /* Must register notifier before pci ops, since we might miss
291 * interface rename after pci probe and netdev registration.
292 */
293 ret = register_netdevice_notifier(&qede_netdev_notifier);
294 if (ret) {
295 pr_notice("Failed to register netdevice_notifier\n");
296 qed_put_eth_ops();
297 return -EINVAL;
298 }
299
300 ret = pci_register_driver(&qede_pci_driver);
301 if (ret) {
302 pr_notice("Failed to register driver\n");
303 unregister_netdevice_notifier(&qede_netdev_notifier);
304 qed_put_eth_ops();
305 return -EINVAL;
306 }
307
308 return 0;
309 }
310
311 static void __exit qede_cleanup(void)
312 {
313 if (debug & QED_LOG_INFO_MASK)
314 pr_info("qede_cleanup called\n");
315
316 unregister_netdevice_notifier(&qede_netdev_notifier);
317 pci_unregister_driver(&qede_pci_driver);
318 qed_put_eth_ops();
319 }
320
321 module_init(qede_init);
322 module_exit(qede_cleanup);
323
324 static int qede_open(struct net_device *ndev);
325 static int qede_close(struct net_device *ndev);
326
327 void qede_fill_by_demand_stats(struct qede_dev *edev)
328 {
329 struct qede_stats_common *p_common = &edev->stats.common;
330 struct qed_eth_stats stats;
331
332 edev->ops->get_vport_stats(edev->cdev, &stats);
333
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;
345
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;
358
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;
396
397 if (QEDE_IS_BB(edev)) {
398 struct qede_stats_bb *p_bb = &edev->stats.bb;
399
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;
420 } else {
421 struct qede_stats_ah *p_ah = &edev->stats.ah;
422
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;
427 }
428 }
429
430 static void qede_get_stats64(struct net_device *dev,
431 struct rtnl_link_stats64 *stats)
432 {
433 struct qede_dev *edev = netdev_priv(dev);
434 struct qede_stats_common *p_common;
435
436 qede_fill_by_demand_stats(edev);
437 p_common = &edev->stats.common;
438
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;
443
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;
448
449 stats->tx_errors = p_common->tx_err_drop_pkts;
450 stats->multicast = p_common->rx_mcast_pkts + p_common->rx_bcast_pkts;
451
452 stats->rx_fifo_errors = p_common->no_buff_discards;
453
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;
458 }
459
460 #ifdef CONFIG_QED_SRIOV
461 static int qede_get_vf_config(struct net_device *dev, int vfidx,
462 struct ifla_vf_info *ivi)
463 {
464 struct qede_dev *edev = netdev_priv(dev);
465
466 if (!edev->ops)
467 return -EINVAL;
468
469 return edev->ops->iov->get_config(edev->cdev, vfidx, ivi);
470 }
471
472 static int qede_set_vf_rate(struct net_device *dev, int vfidx,
473 int min_tx_rate, int max_tx_rate)
474 {
475 struct qede_dev *edev = netdev_priv(dev);
476
477 return edev->ops->iov->set_rate(edev->cdev, vfidx, min_tx_rate,
478 max_tx_rate);
479 }
480
481 static int qede_set_vf_spoofchk(struct net_device *dev, int vfidx, bool val)
482 {
483 struct qede_dev *edev = netdev_priv(dev);
484
485 if (!edev->ops)
486 return -EINVAL;
487
488 return edev->ops->iov->set_spoof(edev->cdev, vfidx, val);
489 }
490
491 static int qede_set_vf_link_state(struct net_device *dev, int vfidx,
492 int link_state)
493 {
494 struct qede_dev *edev = netdev_priv(dev);
495
496 if (!edev->ops)
497 return -EINVAL;
498
499 return edev->ops->iov->set_link_state(edev->cdev, vfidx, link_state);
500 }
501
502 static int qede_set_vf_trust(struct net_device *dev, int vfidx, bool setting)
503 {
504 struct qede_dev *edev = netdev_priv(dev);
505
506 if (!edev->ops)
507 return -EINVAL;
508
509 return edev->ops->iov->set_trust(edev->cdev, vfidx, setting);
510 }
511 #endif
512
513 static int qede_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd)
514 {
515 struct qede_dev *edev = netdev_priv(dev);
516
517 if (!netif_running(dev))
518 return -EAGAIN;
519
520 switch (cmd) {
521 case SIOCSHWTSTAMP:
522 return qede_ptp_hw_ts(edev, ifr);
523 default:
524 DP_VERBOSE(edev, QED_MSG_DEBUG,
525 "default IOCTL cmd 0x%x\n", cmd);
526 return -EOPNOTSUPP;
527 }
528
529 return 0;
530 }
531
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,
545 #endif
546 .ndo_vlan_rx_add_vid = qede_vlan_rx_add_vid,
547 .ndo_vlan_rx_kill_vid = qede_vlan_rx_kill_vid,
548 .ndo_fix_features = qede_fix_features,
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_bpf = qede_xdp,
561 #ifdef CONFIG_RFS_ACCEL
562 .ndo_rx_flow_steer = qede_rx_flow_steer,
563 #endif
564 };
565
566 static const struct net_device_ops qede_netdev_vf_ops = {
567 .ndo_open = qede_open,
568 .ndo_stop = qede_close,
569 .ndo_start_xmit = qede_start_xmit,
570 .ndo_set_rx_mode = qede_set_rx_mode,
571 .ndo_set_mac_address = qede_set_mac_addr,
572 .ndo_validate_addr = eth_validate_addr,
573 .ndo_change_mtu = qede_change_mtu,
574 .ndo_vlan_rx_add_vid = qede_vlan_rx_add_vid,
575 .ndo_vlan_rx_kill_vid = qede_vlan_rx_kill_vid,
576 .ndo_fix_features = qede_fix_features,
577 .ndo_set_features = qede_set_features,
578 .ndo_get_stats64 = qede_get_stats64,
579 .ndo_udp_tunnel_add = qede_udp_tunnel_add,
580 .ndo_udp_tunnel_del = qede_udp_tunnel_del,
581 .ndo_features_check = qede_features_check,
582 };
583
584 static const struct net_device_ops qede_netdev_vf_xdp_ops = {
585 .ndo_open = qede_open,
586 .ndo_stop = qede_close,
587 .ndo_start_xmit = qede_start_xmit,
588 .ndo_set_rx_mode = qede_set_rx_mode,
589 .ndo_set_mac_address = qede_set_mac_addr,
590 .ndo_validate_addr = eth_validate_addr,
591 .ndo_change_mtu = qede_change_mtu,
592 .ndo_vlan_rx_add_vid = qede_vlan_rx_add_vid,
593 .ndo_vlan_rx_kill_vid = qede_vlan_rx_kill_vid,
594 .ndo_fix_features = qede_fix_features,
595 .ndo_set_features = qede_set_features,
596 .ndo_get_stats64 = qede_get_stats64,
597 .ndo_udp_tunnel_add = qede_udp_tunnel_add,
598 .ndo_udp_tunnel_del = qede_udp_tunnel_del,
599 .ndo_features_check = qede_features_check,
600 .ndo_bpf = qede_xdp,
601 };
602
603 /* -------------------------------------------------------------------------
604 * START OF PROBE / REMOVE
605 * -------------------------------------------------------------------------
606 */
607
608 static struct qede_dev *qede_alloc_etherdev(struct qed_dev *cdev,
609 struct pci_dev *pdev,
610 struct qed_dev_eth_info *info,
611 u32 dp_module, u8 dp_level)
612 {
613 struct net_device *ndev;
614 struct qede_dev *edev;
615
616 ndev = alloc_etherdev_mqs(sizeof(*edev),
617 info->num_queues, info->num_queues);
618 if (!ndev) {
619 pr_err("etherdev allocation failed\n");
620 return NULL;
621 }
622
623 edev = netdev_priv(ndev);
624 edev->ndev = ndev;
625 edev->cdev = cdev;
626 edev->pdev = pdev;
627 edev->dp_module = dp_module;
628 edev->dp_level = dp_level;
629 edev->ops = qed_ops;
630 edev->q_num_rx_buffers = NUM_RX_BDS_DEF;
631 edev->q_num_tx_buffers = NUM_TX_BDS_DEF;
632
633 DP_INFO(edev, "Allocated netdev with %d tx queues and %d rx queues\n",
634 info->num_queues, info->num_queues);
635
636 SET_NETDEV_DEV(ndev, &pdev->dev);
637
638 memset(&edev->stats, 0, sizeof(edev->stats));
639 memcpy(&edev->dev_info, info, sizeof(*info));
640
641 /* As ethtool doesn't have the ability to show WoL behavior as
642 * 'default', if device supports it declare it's enabled.
643 */
644 if (edev->dev_info.common.wol_support)
645 edev->wol_enabled = true;
646
647 INIT_LIST_HEAD(&edev->vlan_list);
648
649 return edev;
650 }
651
652 static void qede_init_ndev(struct qede_dev *edev)
653 {
654 struct net_device *ndev = edev->ndev;
655 struct pci_dev *pdev = edev->pdev;
656 bool udp_tunnel_enable = false;
657 netdev_features_t hw_features;
658
659 pci_set_drvdata(pdev, ndev);
660
661 ndev->mem_start = edev->dev_info.common.pci_mem_start;
662 ndev->base_addr = ndev->mem_start;
663 ndev->mem_end = edev->dev_info.common.pci_mem_end;
664 ndev->irq = edev->dev_info.common.pci_irq;
665
666 ndev->watchdog_timeo = TX_TIMEOUT;
667
668 if (IS_VF(edev)) {
669 if (edev->dev_info.xdp_supported)
670 ndev->netdev_ops = &qede_netdev_vf_xdp_ops;
671 else
672 ndev->netdev_ops = &qede_netdev_vf_ops;
673 } else {
674 ndev->netdev_ops = &qede_netdev_ops;
675 }
676
677 qede_set_ethtool_ops(ndev);
678
679 ndev->priv_flags |= IFF_UNICAST_FLT;
680
681 /* user-changeble features */
682 hw_features = NETIF_F_GRO | NETIF_F_GRO_HW | NETIF_F_SG |
683 NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM |
684 NETIF_F_TSO | NETIF_F_TSO6;
685
686 if (!IS_VF(edev) && edev->dev_info.common.num_hwfns == 1)
687 hw_features |= NETIF_F_NTUPLE;
688
689 if (edev->dev_info.common.vxlan_enable ||
690 edev->dev_info.common.geneve_enable)
691 udp_tunnel_enable = true;
692
693 if (udp_tunnel_enable || edev->dev_info.common.gre_enable) {
694 hw_features |= NETIF_F_TSO_ECN;
695 ndev->hw_enc_features = NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM |
696 NETIF_F_SG | NETIF_F_TSO |
697 NETIF_F_TSO_ECN | NETIF_F_TSO6 |
698 NETIF_F_RXCSUM;
699 }
700
701 if (udp_tunnel_enable) {
702 hw_features |= (NETIF_F_GSO_UDP_TUNNEL |
703 NETIF_F_GSO_UDP_TUNNEL_CSUM);
704 ndev->hw_enc_features |= (NETIF_F_GSO_UDP_TUNNEL |
705 NETIF_F_GSO_UDP_TUNNEL_CSUM);
706 }
707
708 if (edev->dev_info.common.gre_enable) {
709 hw_features |= (NETIF_F_GSO_GRE | NETIF_F_GSO_GRE_CSUM);
710 ndev->hw_enc_features |= (NETIF_F_GSO_GRE |
711 NETIF_F_GSO_GRE_CSUM);
712 }
713
714 ndev->vlan_features = hw_features | NETIF_F_RXHASH | NETIF_F_RXCSUM |
715 NETIF_F_HIGHDMA;
716 ndev->features = hw_features | NETIF_F_RXHASH | NETIF_F_RXCSUM |
717 NETIF_F_HW_VLAN_CTAG_RX | NETIF_F_HIGHDMA |
718 NETIF_F_HW_VLAN_CTAG_FILTER | NETIF_F_HW_VLAN_CTAG_TX;
719
720 ndev->hw_features = hw_features;
721
722 /* MTU range: 46 - 9600 */
723 ndev->min_mtu = ETH_ZLEN - ETH_HLEN;
724 ndev->max_mtu = QEDE_MAX_JUMBO_PACKET_SIZE;
725
726 /* Set network device HW mac */
727 ether_addr_copy(edev->ndev->dev_addr, edev->dev_info.common.hw_mac);
728
729 ndev->mtu = edev->dev_info.common.mtu;
730 }
731
732 /* This function converts from 32b param to two params of level and module
733 * Input 32b decoding:
734 * b31 - enable all NOTICE prints. NOTICE prints are for deviation from the
735 * 'happy' flow, e.g. memory allocation failed.
736 * b30 - enable all INFO prints. INFO prints are for major steps in the flow
737 * and provide important parameters.
738 * b29-b0 - per-module bitmap, where each bit enables VERBOSE prints of that
739 * module. VERBOSE prints are for tracking the specific flow in low level.
740 *
741 * Notice that the level should be that of the lowest required logs.
742 */
743 void qede_config_debug(uint debug, u32 *p_dp_module, u8 *p_dp_level)
744 {
745 *p_dp_level = QED_LEVEL_NOTICE;
746 *p_dp_module = 0;
747
748 if (debug & QED_LOG_VERBOSE_MASK) {
749 *p_dp_level = QED_LEVEL_VERBOSE;
750 *p_dp_module = (debug & 0x3FFFFFFF);
751 } else if (debug & QED_LOG_INFO_MASK) {
752 *p_dp_level = QED_LEVEL_INFO;
753 } else if (debug & QED_LOG_NOTICE_MASK) {
754 *p_dp_level = QED_LEVEL_NOTICE;
755 }
756 }
757
758 static void qede_free_fp_array(struct qede_dev *edev)
759 {
760 if (edev->fp_array) {
761 struct qede_fastpath *fp;
762 int i;
763
764 for_each_queue(i) {
765 fp = &edev->fp_array[i];
766
767 kfree(fp->sb_info);
768 /* Handle mem alloc failure case where qede_init_fp
769 * didn't register xdp_rxq_info yet.
770 * Implicit only (fp->type & QEDE_FASTPATH_RX)
771 */
772 if (fp->rxq && xdp_rxq_info_is_reg(&fp->rxq->xdp_rxq))
773 xdp_rxq_info_unreg(&fp->rxq->xdp_rxq);
774 kfree(fp->rxq);
775 kfree(fp->xdp_tx);
776 kfree(fp->txq);
777 }
778 kfree(edev->fp_array);
779 }
780
781 edev->num_queues = 0;
782 edev->fp_num_tx = 0;
783 edev->fp_num_rx = 0;
784 }
785
786 static int qede_alloc_fp_array(struct qede_dev *edev)
787 {
788 u8 fp_combined, fp_rx = edev->fp_num_rx;
789 struct qede_fastpath *fp;
790 int i;
791
792 edev->fp_array = kcalloc(QEDE_QUEUE_CNT(edev),
793 sizeof(*edev->fp_array), GFP_KERNEL);
794 if (!edev->fp_array) {
795 DP_NOTICE(edev, "fp array allocation failed\n");
796 goto err;
797 }
798
799 fp_combined = QEDE_QUEUE_CNT(edev) - fp_rx - edev->fp_num_tx;
800
801 /* Allocate the FP elements for Rx queues followed by combined and then
802 * the Tx. This ordering should be maintained so that the respective
803 * queues (Rx or Tx) will be together in the fastpath array and the
804 * associated ids will be sequential.
805 */
806 for_each_queue(i) {
807 fp = &edev->fp_array[i];
808
809 fp->sb_info = kzalloc(sizeof(*fp->sb_info), GFP_KERNEL);
810 if (!fp->sb_info) {
811 DP_NOTICE(edev, "sb info struct allocation failed\n");
812 goto err;
813 }
814
815 if (fp_rx) {
816 fp->type = QEDE_FASTPATH_RX;
817 fp_rx--;
818 } else if (fp_combined) {
819 fp->type = QEDE_FASTPATH_COMBINED;
820 fp_combined--;
821 } else {
822 fp->type = QEDE_FASTPATH_TX;
823 }
824
825 if (fp->type & QEDE_FASTPATH_TX) {
826 fp->txq = kzalloc(sizeof(*fp->txq), GFP_KERNEL);
827 if (!fp->txq)
828 goto err;
829 }
830
831 if (fp->type & QEDE_FASTPATH_RX) {
832 fp->rxq = kzalloc(sizeof(*fp->rxq), GFP_KERNEL);
833 if (!fp->rxq)
834 goto err;
835
836 if (edev->xdp_prog) {
837 fp->xdp_tx = kzalloc(sizeof(*fp->xdp_tx),
838 GFP_KERNEL);
839 if (!fp->xdp_tx)
840 goto err;
841 fp->type |= QEDE_FASTPATH_XDP;
842 }
843 }
844 }
845
846 return 0;
847 err:
848 qede_free_fp_array(edev);
849 return -ENOMEM;
850 }
851
852 static void qede_sp_task(struct work_struct *work)
853 {
854 struct qede_dev *edev = container_of(work, struct qede_dev,
855 sp_task.work);
856
857 __qede_lock(edev);
858
859 if (test_and_clear_bit(QEDE_SP_RX_MODE, &edev->sp_flags))
860 if (edev->state == QEDE_STATE_OPEN)
861 qede_config_rx_mode(edev->ndev);
862
863 #ifdef CONFIG_RFS_ACCEL
864 if (test_and_clear_bit(QEDE_SP_ARFS_CONFIG, &edev->sp_flags)) {
865 if (edev->state == QEDE_STATE_OPEN)
866 qede_process_arfs_filters(edev, false);
867 }
868 #endif
869 __qede_unlock(edev);
870 }
871
872 static void qede_update_pf_params(struct qed_dev *cdev)
873 {
874 struct qed_pf_params pf_params;
875
876 /* 64 rx + 64 tx + 64 XDP */
877 memset(&pf_params, 0, sizeof(struct qed_pf_params));
878 pf_params.eth_pf_params.num_cons = (MAX_SB_PER_PF_MIMD - 1) * 3;
879
880 /* Same for VFs - make sure they'll have sufficient connections
881 * to support XDP Tx queues.
882 */
883 pf_params.eth_pf_params.num_vf_cons = 48;
884
885 pf_params.eth_pf_params.num_arfs_filters = QEDE_RFS_MAX_FLTR;
886 qed_ops->common->update_pf_params(cdev, &pf_params);
887 }
888
889 #define QEDE_FW_VER_STR_SIZE 80
890
891 static void qede_log_probe(struct qede_dev *edev)
892 {
893 struct qed_dev_info *p_dev_info = &edev->dev_info.common;
894 u8 buf[QEDE_FW_VER_STR_SIZE];
895 size_t left_size;
896
897 snprintf(buf, QEDE_FW_VER_STR_SIZE,
898 "Storm FW %d.%d.%d.%d, Management FW %d.%d.%d.%d",
899 p_dev_info->fw_major, p_dev_info->fw_minor, p_dev_info->fw_rev,
900 p_dev_info->fw_eng,
901 (p_dev_info->mfw_rev & QED_MFW_VERSION_3_MASK) >>
902 QED_MFW_VERSION_3_OFFSET,
903 (p_dev_info->mfw_rev & QED_MFW_VERSION_2_MASK) >>
904 QED_MFW_VERSION_2_OFFSET,
905 (p_dev_info->mfw_rev & QED_MFW_VERSION_1_MASK) >>
906 QED_MFW_VERSION_1_OFFSET,
907 (p_dev_info->mfw_rev & QED_MFW_VERSION_0_MASK) >>
908 QED_MFW_VERSION_0_OFFSET);
909
910 left_size = QEDE_FW_VER_STR_SIZE - strlen(buf);
911 if (p_dev_info->mbi_version && left_size)
912 snprintf(buf + strlen(buf), left_size,
913 " [MBI %d.%d.%d]",
914 (p_dev_info->mbi_version & QED_MBI_VERSION_2_MASK) >>
915 QED_MBI_VERSION_2_OFFSET,
916 (p_dev_info->mbi_version & QED_MBI_VERSION_1_MASK) >>
917 QED_MBI_VERSION_1_OFFSET,
918 (p_dev_info->mbi_version & QED_MBI_VERSION_0_MASK) >>
919 QED_MBI_VERSION_0_OFFSET);
920
921 pr_info("qede %02x:%02x.%02x: %s [%s]\n", edev->pdev->bus->number,
922 PCI_SLOT(edev->pdev->devfn), PCI_FUNC(edev->pdev->devfn),
923 buf, edev->ndev->name);
924 }
925
926 enum qede_probe_mode {
927 QEDE_PROBE_NORMAL,
928 };
929
930 static int __qede_probe(struct pci_dev *pdev, u32 dp_module, u8 dp_level,
931 bool is_vf, enum qede_probe_mode mode)
932 {
933 struct qed_probe_params probe_params;
934 struct qed_slowpath_params sp_params;
935 struct qed_dev_eth_info dev_info;
936 struct qede_dev *edev;
937 struct qed_dev *cdev;
938 int rc;
939
940 if (unlikely(dp_level & QED_LEVEL_INFO))
941 pr_notice("Starting qede probe\n");
942
943 memset(&probe_params, 0, sizeof(probe_params));
944 probe_params.protocol = QED_PROTOCOL_ETH;
945 probe_params.dp_module = dp_module;
946 probe_params.dp_level = dp_level;
947 probe_params.is_vf = is_vf;
948 cdev = qed_ops->common->probe(pdev, &probe_params);
949 if (!cdev) {
950 rc = -ENODEV;
951 goto err0;
952 }
953
954 qede_update_pf_params(cdev);
955
956 /* Start the Slowpath-process */
957 memset(&sp_params, 0, sizeof(sp_params));
958 sp_params.int_mode = QED_INT_MODE_MSIX;
959 sp_params.drv_major = QEDE_MAJOR_VERSION;
960 sp_params.drv_minor = QEDE_MINOR_VERSION;
961 sp_params.drv_rev = QEDE_REVISION_VERSION;
962 sp_params.drv_eng = QEDE_ENGINEERING_VERSION;
963 strlcpy(sp_params.name, "qede LAN", QED_DRV_VER_STR_SIZE);
964 rc = qed_ops->common->slowpath_start(cdev, &sp_params);
965 if (rc) {
966 pr_notice("Cannot start slowpath\n");
967 goto err1;
968 }
969
970 /* Learn information crucial for qede to progress */
971 rc = qed_ops->fill_dev_info(cdev, &dev_info);
972 if (rc)
973 goto err2;
974
975 edev = qede_alloc_etherdev(cdev, pdev, &dev_info, dp_module,
976 dp_level);
977 if (!edev) {
978 rc = -ENOMEM;
979 goto err2;
980 }
981
982 if (is_vf)
983 edev->flags |= QEDE_FLAG_IS_VF;
984
985 qede_init_ndev(edev);
986
987 rc = qede_rdma_dev_add(edev);
988 if (rc)
989 goto err3;
990
991 /* Prepare the lock prior to the registration of the netdev,
992 * as once it's registered we might reach flows requiring it
993 * [it's even possible to reach a flow needing it directly
994 * from there, although it's unlikely].
995 */
996 INIT_DELAYED_WORK(&edev->sp_task, qede_sp_task);
997 mutex_init(&edev->qede_lock);
998 rc = register_netdev(edev->ndev);
999 if (rc) {
1000 DP_NOTICE(edev, "Cannot register net-device\n");
1001 goto err4;
1002 }
1003
1004 edev->ops->common->set_name(cdev, edev->ndev->name);
1005
1006 /* PTP not supported on VFs */
1007 if (!is_vf)
1008 qede_ptp_enable(edev, true);
1009
1010 edev->ops->register_ops(cdev, &qede_ll_ops, edev);
1011
1012 #ifdef CONFIG_DCB
1013 if (!IS_VF(edev))
1014 qede_set_dcbnl_ops(edev->ndev);
1015 #endif
1016
1017 edev->rx_copybreak = QEDE_RX_HDR_SIZE;
1018
1019 qede_log_probe(edev);
1020 return 0;
1021
1022 err4:
1023 qede_rdma_dev_remove(edev);
1024 err3:
1025 free_netdev(edev->ndev);
1026 err2:
1027 qed_ops->common->slowpath_stop(cdev);
1028 err1:
1029 qed_ops->common->remove(cdev);
1030 err0:
1031 return rc;
1032 }
1033
1034 static int qede_probe(struct pci_dev *pdev, const struct pci_device_id *id)
1035 {
1036 bool is_vf = false;
1037 u32 dp_module = 0;
1038 u8 dp_level = 0;
1039
1040 switch ((enum qede_pci_private)id->driver_data) {
1041 case QEDE_PRIVATE_VF:
1042 if (debug & QED_LOG_VERBOSE_MASK)
1043 dev_err(&pdev->dev, "Probing a VF\n");
1044 is_vf = true;
1045 break;
1046 default:
1047 if (debug & QED_LOG_VERBOSE_MASK)
1048 dev_err(&pdev->dev, "Probing a PF\n");
1049 }
1050
1051 qede_config_debug(debug, &dp_module, &dp_level);
1052
1053 return __qede_probe(pdev, dp_module, dp_level, is_vf,
1054 QEDE_PROBE_NORMAL);
1055 }
1056
1057 enum qede_remove_mode {
1058 QEDE_REMOVE_NORMAL,
1059 };
1060
1061 static void __qede_remove(struct pci_dev *pdev, enum qede_remove_mode mode)
1062 {
1063 struct net_device *ndev = pci_get_drvdata(pdev);
1064 struct qede_dev *edev = netdev_priv(ndev);
1065 struct qed_dev *cdev = edev->cdev;
1066
1067 DP_INFO(edev, "Starting qede_remove\n");
1068
1069 unregister_netdev(ndev);
1070 cancel_delayed_work_sync(&edev->sp_task);
1071
1072 qede_ptp_disable(edev);
1073
1074 qede_rdma_dev_remove(edev);
1075
1076 edev->ops->common->set_power_state(cdev, PCI_D0);
1077
1078 pci_set_drvdata(pdev, NULL);
1079
1080 /* Use global ops since we've freed edev */
1081 qed_ops->common->slowpath_stop(cdev);
1082 if (system_state == SYSTEM_POWER_OFF)
1083 return;
1084 qed_ops->common->remove(cdev);
1085
1086 /* Since this can happen out-of-sync with other flows,
1087 * don't release the netdevice until after slowpath stop
1088 * has been called to guarantee various other contexts
1089 * [e.g., QED register callbacks] won't break anything when
1090 * accessing the netdevice.
1091 */
1092 free_netdev(ndev);
1093
1094 dev_info(&pdev->dev, "Ending qede_remove successfully\n");
1095 }
1096
1097 static void qede_remove(struct pci_dev *pdev)
1098 {
1099 __qede_remove(pdev, QEDE_REMOVE_NORMAL);
1100 }
1101
1102 static void qede_shutdown(struct pci_dev *pdev)
1103 {
1104 __qede_remove(pdev, QEDE_REMOVE_NORMAL);
1105 }
1106
1107 /* -------------------------------------------------------------------------
1108 * START OF LOAD / UNLOAD
1109 * -------------------------------------------------------------------------
1110 */
1111
1112 static int qede_set_num_queues(struct qede_dev *edev)
1113 {
1114 int rc;
1115 u16 rss_num;
1116
1117 /* Setup queues according to possible resources*/
1118 if (edev->req_queues)
1119 rss_num = edev->req_queues;
1120 else
1121 rss_num = netif_get_num_default_rss_queues() *
1122 edev->dev_info.common.num_hwfns;
1123
1124 rss_num = min_t(u16, QEDE_MAX_RSS_CNT(edev), rss_num);
1125
1126 rc = edev->ops->common->set_fp_int(edev->cdev, rss_num);
1127 if (rc > 0) {
1128 /* Managed to request interrupts for our queues */
1129 edev->num_queues = rc;
1130 DP_INFO(edev, "Managed %d [of %d] RSS queues\n",
1131 QEDE_QUEUE_CNT(edev), rss_num);
1132 rc = 0;
1133 }
1134
1135 edev->fp_num_tx = edev->req_num_tx;
1136 edev->fp_num_rx = edev->req_num_rx;
1137
1138 return rc;
1139 }
1140
1141 static void qede_free_mem_sb(struct qede_dev *edev, struct qed_sb_info *sb_info,
1142 u16 sb_id)
1143 {
1144 if (sb_info->sb_virt) {
1145 edev->ops->common->sb_release(edev->cdev, sb_info, sb_id);
1146 dma_free_coherent(&edev->pdev->dev, sizeof(*sb_info->sb_virt),
1147 (void *)sb_info->sb_virt, sb_info->sb_phys);
1148 memset(sb_info, 0, sizeof(*sb_info));
1149 }
1150 }
1151
1152 /* This function allocates fast-path status block memory */
1153 static int qede_alloc_mem_sb(struct qede_dev *edev,
1154 struct qed_sb_info *sb_info, u16 sb_id)
1155 {
1156 struct status_block_e4 *sb_virt;
1157 dma_addr_t sb_phys;
1158 int rc;
1159
1160 sb_virt = dma_alloc_coherent(&edev->pdev->dev,
1161 sizeof(*sb_virt), &sb_phys, GFP_KERNEL);
1162 if (!sb_virt) {
1163 DP_ERR(edev, "Status block allocation failed\n");
1164 return -ENOMEM;
1165 }
1166
1167 rc = edev->ops->common->sb_init(edev->cdev, sb_info,
1168 sb_virt, sb_phys, sb_id,
1169 QED_SB_TYPE_L2_QUEUE);
1170 if (rc) {
1171 DP_ERR(edev, "Status block initialization failed\n");
1172 dma_free_coherent(&edev->pdev->dev, sizeof(*sb_virt),
1173 sb_virt, sb_phys);
1174 return rc;
1175 }
1176
1177 return 0;
1178 }
1179
1180 static void qede_free_rx_buffers(struct qede_dev *edev,
1181 struct qede_rx_queue *rxq)
1182 {
1183 u16 i;
1184
1185 for (i = rxq->sw_rx_cons; i != rxq->sw_rx_prod; i++) {
1186 struct sw_rx_data *rx_buf;
1187 struct page *data;
1188
1189 rx_buf = &rxq->sw_rx_ring[i & NUM_RX_BDS_MAX];
1190 data = rx_buf->data;
1191
1192 dma_unmap_page(&edev->pdev->dev,
1193 rx_buf->mapping, PAGE_SIZE, rxq->data_direction);
1194
1195 rx_buf->data = NULL;
1196 __free_page(data);
1197 }
1198 }
1199
1200 static void qede_free_sge_mem(struct qede_dev *edev, struct qede_rx_queue *rxq)
1201 {
1202 int i;
1203
1204 if (edev->gro_disable)
1205 return;
1206
1207 for (i = 0; i < ETH_TPA_MAX_AGGS_NUM; i++) {
1208 struct qede_agg_info *tpa_info = &rxq->tpa_info[i];
1209 struct sw_rx_data *replace_buf = &tpa_info->buffer;
1210
1211 if (replace_buf->data) {
1212 dma_unmap_page(&edev->pdev->dev,
1213 replace_buf->mapping,
1214 PAGE_SIZE, DMA_FROM_DEVICE);
1215 __free_page(replace_buf->data);
1216 }
1217 }
1218 }
1219
1220 static void qede_free_mem_rxq(struct qede_dev *edev, struct qede_rx_queue *rxq)
1221 {
1222 qede_free_sge_mem(edev, rxq);
1223
1224 /* Free rx buffers */
1225 qede_free_rx_buffers(edev, rxq);
1226
1227 /* Free the parallel SW ring */
1228 kfree(rxq->sw_rx_ring);
1229
1230 /* Free the real RQ ring used by FW */
1231 edev->ops->common->chain_free(edev->cdev, &rxq->rx_bd_ring);
1232 edev->ops->common->chain_free(edev->cdev, &rxq->rx_comp_ring);
1233 }
1234
1235 static int qede_alloc_sge_mem(struct qede_dev *edev, struct qede_rx_queue *rxq)
1236 {
1237 dma_addr_t mapping;
1238 int i;
1239
1240 if (edev->gro_disable)
1241 return 0;
1242
1243 for (i = 0; i < ETH_TPA_MAX_AGGS_NUM; i++) {
1244 struct qede_agg_info *tpa_info = &rxq->tpa_info[i];
1245 struct sw_rx_data *replace_buf = &tpa_info->buffer;
1246
1247 replace_buf->data = alloc_pages(GFP_ATOMIC, 0);
1248 if (unlikely(!replace_buf->data)) {
1249 DP_NOTICE(edev,
1250 "Failed to allocate TPA skb pool [replacement buffer]\n");
1251 goto err;
1252 }
1253
1254 mapping = dma_map_page(&edev->pdev->dev, replace_buf->data, 0,
1255 PAGE_SIZE, DMA_FROM_DEVICE);
1256 if (unlikely(dma_mapping_error(&edev->pdev->dev, mapping))) {
1257 DP_NOTICE(edev,
1258 "Failed to map TPA replacement buffer\n");
1259 goto err;
1260 }
1261
1262 replace_buf->mapping = mapping;
1263 tpa_info->buffer.page_offset = 0;
1264 tpa_info->buffer_mapping = mapping;
1265 tpa_info->state = QEDE_AGG_STATE_NONE;
1266 }
1267
1268 return 0;
1269 err:
1270 qede_free_sge_mem(edev, rxq);
1271 edev->gro_disable = 1;
1272 edev->ndev->features &= ~NETIF_F_GRO_HW;
1273 return -ENOMEM;
1274 }
1275
1276 /* This function allocates all memory needed per Rx queue */
1277 static int qede_alloc_mem_rxq(struct qede_dev *edev, struct qede_rx_queue *rxq)
1278 {
1279 int i, rc, size;
1280
1281 rxq->num_rx_buffers = edev->q_num_rx_buffers;
1282
1283 rxq->rx_buf_size = NET_IP_ALIGN + ETH_OVERHEAD + edev->ndev->mtu;
1284 rxq->rx_headroom = edev->xdp_prog ? XDP_PACKET_HEADROOM : 0;
1285
1286 /* Make sure that the headroom and payload fit in a single page */
1287 if (rxq->rx_buf_size + rxq->rx_headroom > PAGE_SIZE)
1288 rxq->rx_buf_size = PAGE_SIZE - rxq->rx_headroom;
1289
1290 /* Segment size to spilt a page in multiple equal parts,
1291 * unless XDP is used in which case we'd use the entire page.
1292 */
1293 if (!edev->xdp_prog)
1294 rxq->rx_buf_seg_size = roundup_pow_of_two(rxq->rx_buf_size);
1295 else
1296 rxq->rx_buf_seg_size = PAGE_SIZE;
1297
1298 /* Allocate the parallel driver ring for Rx buffers */
1299 size = sizeof(*rxq->sw_rx_ring) * RX_RING_SIZE;
1300 rxq->sw_rx_ring = kzalloc(size, GFP_KERNEL);
1301 if (!rxq->sw_rx_ring) {
1302 DP_ERR(edev, "Rx buffers ring allocation failed\n");
1303 rc = -ENOMEM;
1304 goto err;
1305 }
1306
1307 /* Allocate FW Rx ring */
1308 rc = edev->ops->common->chain_alloc(edev->cdev,
1309 QED_CHAIN_USE_TO_CONSUME_PRODUCE,
1310 QED_CHAIN_MODE_NEXT_PTR,
1311 QED_CHAIN_CNT_TYPE_U16,
1312 RX_RING_SIZE,
1313 sizeof(struct eth_rx_bd),
1314 &rxq->rx_bd_ring, NULL);
1315 if (rc)
1316 goto err;
1317
1318 /* Allocate FW completion ring */
1319 rc = edev->ops->common->chain_alloc(edev->cdev,
1320 QED_CHAIN_USE_TO_CONSUME,
1321 QED_CHAIN_MODE_PBL,
1322 QED_CHAIN_CNT_TYPE_U16,
1323 RX_RING_SIZE,
1324 sizeof(union eth_rx_cqe),
1325 &rxq->rx_comp_ring, NULL);
1326 if (rc)
1327 goto err;
1328
1329 /* Allocate buffers for the Rx ring */
1330 rxq->filled_buffers = 0;
1331 for (i = 0; i < rxq->num_rx_buffers; i++) {
1332 rc = qede_alloc_rx_buffer(rxq, false);
1333 if (rc) {
1334 DP_ERR(edev,
1335 "Rx buffers allocation failed at index %d\n", i);
1336 goto err;
1337 }
1338 }
1339
1340 rc = qede_alloc_sge_mem(edev, rxq);
1341 err:
1342 return rc;
1343 }
1344
1345 static void qede_free_mem_txq(struct qede_dev *edev, struct qede_tx_queue *txq)
1346 {
1347 /* Free the parallel SW ring */
1348 if (txq->is_xdp)
1349 kfree(txq->sw_tx_ring.xdp);
1350 else
1351 kfree(txq->sw_tx_ring.skbs);
1352
1353 /* Free the real RQ ring used by FW */
1354 edev->ops->common->chain_free(edev->cdev, &txq->tx_pbl);
1355 }
1356
1357 /* This function allocates all memory needed per Tx queue */
1358 static int qede_alloc_mem_txq(struct qede_dev *edev, struct qede_tx_queue *txq)
1359 {
1360 union eth_tx_bd_types *p_virt;
1361 int size, rc;
1362
1363 txq->num_tx_buffers = edev->q_num_tx_buffers;
1364
1365 /* Allocate the parallel driver ring for Tx buffers */
1366 if (txq->is_xdp) {
1367 size = sizeof(*txq->sw_tx_ring.xdp) * txq->num_tx_buffers;
1368 txq->sw_tx_ring.xdp = kzalloc(size, GFP_KERNEL);
1369 if (!txq->sw_tx_ring.xdp)
1370 goto err;
1371 } else {
1372 size = sizeof(*txq->sw_tx_ring.skbs) * txq->num_tx_buffers;
1373 txq->sw_tx_ring.skbs = kzalloc(size, GFP_KERNEL);
1374 if (!txq->sw_tx_ring.skbs)
1375 goto err;
1376 }
1377
1378 rc = edev->ops->common->chain_alloc(edev->cdev,
1379 QED_CHAIN_USE_TO_CONSUME_PRODUCE,
1380 QED_CHAIN_MODE_PBL,
1381 QED_CHAIN_CNT_TYPE_U16,
1382 txq->num_tx_buffers,
1383 sizeof(*p_virt),
1384 &txq->tx_pbl, NULL);
1385 if (rc)
1386 goto err;
1387
1388 return 0;
1389
1390 err:
1391 qede_free_mem_txq(edev, txq);
1392 return -ENOMEM;
1393 }
1394
1395 /* This function frees all memory of a single fp */
1396 static void qede_free_mem_fp(struct qede_dev *edev, struct qede_fastpath *fp)
1397 {
1398 qede_free_mem_sb(edev, fp->sb_info, fp->id);
1399
1400 if (fp->type & QEDE_FASTPATH_RX)
1401 qede_free_mem_rxq(edev, fp->rxq);
1402
1403 if (fp->type & QEDE_FASTPATH_XDP)
1404 qede_free_mem_txq(edev, fp->xdp_tx);
1405
1406 if (fp->type & QEDE_FASTPATH_TX)
1407 qede_free_mem_txq(edev, fp->txq);
1408 }
1409
1410 /* This function allocates all memory needed for a single fp (i.e. an entity
1411 * which contains status block, one rx queue and/or multiple per-TC tx queues.
1412 */
1413 static int qede_alloc_mem_fp(struct qede_dev *edev, struct qede_fastpath *fp)
1414 {
1415 int rc = 0;
1416
1417 rc = qede_alloc_mem_sb(edev, fp->sb_info, fp->id);
1418 if (rc)
1419 goto out;
1420
1421 if (fp->type & QEDE_FASTPATH_RX) {
1422 rc = qede_alloc_mem_rxq(edev, fp->rxq);
1423 if (rc)
1424 goto out;
1425 }
1426
1427 if (fp->type & QEDE_FASTPATH_XDP) {
1428 rc = qede_alloc_mem_txq(edev, fp->xdp_tx);
1429 if (rc)
1430 goto out;
1431 }
1432
1433 if (fp->type & QEDE_FASTPATH_TX) {
1434 rc = qede_alloc_mem_txq(edev, fp->txq);
1435 if (rc)
1436 goto out;
1437 }
1438
1439 out:
1440 return rc;
1441 }
1442
1443 static void qede_free_mem_load(struct qede_dev *edev)
1444 {
1445 int i;
1446
1447 for_each_queue(i) {
1448 struct qede_fastpath *fp = &edev->fp_array[i];
1449
1450 qede_free_mem_fp(edev, fp);
1451 }
1452 }
1453
1454 /* This function allocates all qede memory at NIC load. */
1455 static int qede_alloc_mem_load(struct qede_dev *edev)
1456 {
1457 int rc = 0, queue_id;
1458
1459 for (queue_id = 0; queue_id < QEDE_QUEUE_CNT(edev); queue_id++) {
1460 struct qede_fastpath *fp = &edev->fp_array[queue_id];
1461
1462 rc = qede_alloc_mem_fp(edev, fp);
1463 if (rc) {
1464 DP_ERR(edev,
1465 "Failed to allocate memory for fastpath - rss id = %d\n",
1466 queue_id);
1467 qede_free_mem_load(edev);
1468 return rc;
1469 }
1470 }
1471
1472 return 0;
1473 }
1474
1475 /* This function inits fp content and resets the SB, RXQ and TXQ structures */
1476 static void qede_init_fp(struct qede_dev *edev)
1477 {
1478 int queue_id, rxq_index = 0, txq_index = 0;
1479 struct qede_fastpath *fp;
1480
1481 for_each_queue(queue_id) {
1482 fp = &edev->fp_array[queue_id];
1483
1484 fp->edev = edev;
1485 fp->id = queue_id;
1486
1487 if (fp->type & QEDE_FASTPATH_XDP) {
1488 fp->xdp_tx->index = QEDE_TXQ_IDX_TO_XDP(edev,
1489 rxq_index);
1490 fp->xdp_tx->is_xdp = 1;
1491 }
1492
1493 if (fp->type & QEDE_FASTPATH_RX) {
1494 fp->rxq->rxq_id = rxq_index++;
1495
1496 /* Determine how to map buffers for this queue */
1497 if (fp->type & QEDE_FASTPATH_XDP)
1498 fp->rxq->data_direction = DMA_BIDIRECTIONAL;
1499 else
1500 fp->rxq->data_direction = DMA_FROM_DEVICE;
1501 fp->rxq->dev = &edev->pdev->dev;
1502
1503 /* Driver have no error path from here */
1504 WARN_ON(xdp_rxq_info_reg(&fp->rxq->xdp_rxq, edev->ndev,
1505 fp->rxq->rxq_id) < 0);
1506 }
1507
1508 if (fp->type & QEDE_FASTPATH_TX) {
1509 fp->txq->index = txq_index++;
1510 if (edev->dev_info.is_legacy)
1511 fp->txq->is_legacy = 1;
1512 fp->txq->dev = &edev->pdev->dev;
1513 }
1514
1515 snprintf(fp->name, sizeof(fp->name), "%s-fp-%d",
1516 edev->ndev->name, queue_id);
1517 }
1518
1519 edev->gro_disable = !(edev->ndev->features & NETIF_F_GRO_HW);
1520 }
1521
1522 static int qede_set_real_num_queues(struct qede_dev *edev)
1523 {
1524 int rc = 0;
1525
1526 rc = netif_set_real_num_tx_queues(edev->ndev, QEDE_TSS_COUNT(edev));
1527 if (rc) {
1528 DP_NOTICE(edev, "Failed to set real number of Tx queues\n");
1529 return rc;
1530 }
1531
1532 rc = netif_set_real_num_rx_queues(edev->ndev, QEDE_RSS_COUNT(edev));
1533 if (rc) {
1534 DP_NOTICE(edev, "Failed to set real number of Rx queues\n");
1535 return rc;
1536 }
1537
1538 return 0;
1539 }
1540
1541 static void qede_napi_disable_remove(struct qede_dev *edev)
1542 {
1543 int i;
1544
1545 for_each_queue(i) {
1546 napi_disable(&edev->fp_array[i].napi);
1547
1548 netif_napi_del(&edev->fp_array[i].napi);
1549 }
1550 }
1551
1552 static void qede_napi_add_enable(struct qede_dev *edev)
1553 {
1554 int i;
1555
1556 /* Add NAPI objects */
1557 for_each_queue(i) {
1558 netif_napi_add(edev->ndev, &edev->fp_array[i].napi,
1559 qede_poll, NAPI_POLL_WEIGHT);
1560 napi_enable(&edev->fp_array[i].napi);
1561 }
1562 }
1563
1564 static void qede_sync_free_irqs(struct qede_dev *edev)
1565 {
1566 int i;
1567
1568 for (i = 0; i < edev->int_info.used_cnt; i++) {
1569 if (edev->int_info.msix_cnt) {
1570 synchronize_irq(edev->int_info.msix[i].vector);
1571 free_irq(edev->int_info.msix[i].vector,
1572 &edev->fp_array[i]);
1573 } else {
1574 edev->ops->common->simd_handler_clean(edev->cdev, i);
1575 }
1576 }
1577
1578 edev->int_info.used_cnt = 0;
1579 }
1580
1581 static int qede_req_msix_irqs(struct qede_dev *edev)
1582 {
1583 int i, rc;
1584
1585 /* Sanitize number of interrupts == number of prepared RSS queues */
1586 if (QEDE_QUEUE_CNT(edev) > edev->int_info.msix_cnt) {
1587 DP_ERR(edev,
1588 "Interrupt mismatch: %d RSS queues > %d MSI-x vectors\n",
1589 QEDE_QUEUE_CNT(edev), edev->int_info.msix_cnt);
1590 return -EINVAL;
1591 }
1592
1593 for (i = 0; i < QEDE_QUEUE_CNT(edev); i++) {
1594 #ifdef CONFIG_RFS_ACCEL
1595 struct qede_fastpath *fp = &edev->fp_array[i];
1596
1597 if (edev->ndev->rx_cpu_rmap && (fp->type & QEDE_FASTPATH_RX)) {
1598 rc = irq_cpu_rmap_add(edev->ndev->rx_cpu_rmap,
1599 edev->int_info.msix[i].vector);
1600 if (rc) {
1601 DP_ERR(edev, "Failed to add CPU rmap\n");
1602 qede_free_arfs(edev);
1603 }
1604 }
1605 #endif
1606 rc = request_irq(edev->int_info.msix[i].vector,
1607 qede_msix_fp_int, 0, edev->fp_array[i].name,
1608 &edev->fp_array[i]);
1609 if (rc) {
1610 DP_ERR(edev, "Request fp %d irq failed\n", i);
1611 qede_sync_free_irqs(edev);
1612 return rc;
1613 }
1614 DP_VERBOSE(edev, NETIF_MSG_INTR,
1615 "Requested fp irq for %s [entry %d]. Cookie is at %p\n",
1616 edev->fp_array[i].name, i,
1617 &edev->fp_array[i]);
1618 edev->int_info.used_cnt++;
1619 }
1620
1621 return 0;
1622 }
1623
1624 static void qede_simd_fp_handler(void *cookie)
1625 {
1626 struct qede_fastpath *fp = (struct qede_fastpath *)cookie;
1627
1628 napi_schedule_irqoff(&fp->napi);
1629 }
1630
1631 static int qede_setup_irqs(struct qede_dev *edev)
1632 {
1633 int i, rc = 0;
1634
1635 /* Learn Interrupt configuration */
1636 rc = edev->ops->common->get_fp_int(edev->cdev, &edev->int_info);
1637 if (rc)
1638 return rc;
1639
1640 if (edev->int_info.msix_cnt) {
1641 rc = qede_req_msix_irqs(edev);
1642 if (rc)
1643 return rc;
1644 edev->ndev->irq = edev->int_info.msix[0].vector;
1645 } else {
1646 const struct qed_common_ops *ops;
1647
1648 /* qed should learn receive the RSS ids and callbacks */
1649 ops = edev->ops->common;
1650 for (i = 0; i < QEDE_QUEUE_CNT(edev); i++)
1651 ops->simd_handler_config(edev->cdev,
1652 &edev->fp_array[i], i,
1653 qede_simd_fp_handler);
1654 edev->int_info.used_cnt = QEDE_QUEUE_CNT(edev);
1655 }
1656 return 0;
1657 }
1658
1659 static int qede_drain_txq(struct qede_dev *edev,
1660 struct qede_tx_queue *txq, bool allow_drain)
1661 {
1662 int rc, cnt = 1000;
1663
1664 while (txq->sw_tx_cons != txq->sw_tx_prod) {
1665 if (!cnt) {
1666 if (allow_drain) {
1667 DP_NOTICE(edev,
1668 "Tx queue[%d] is stuck, requesting MCP to drain\n",
1669 txq->index);
1670 rc = edev->ops->common->drain(edev->cdev);
1671 if (rc)
1672 return rc;
1673 return qede_drain_txq(edev, txq, false);
1674 }
1675 DP_NOTICE(edev,
1676 "Timeout waiting for tx queue[%d]: PROD=%d, CONS=%d\n",
1677 txq->index, txq->sw_tx_prod,
1678 txq->sw_tx_cons);
1679 return -ENODEV;
1680 }
1681 cnt--;
1682 usleep_range(1000, 2000);
1683 barrier();
1684 }
1685
1686 /* FW finished processing, wait for HW to transmit all tx packets */
1687 usleep_range(1000, 2000);
1688
1689 return 0;
1690 }
1691
1692 static int qede_stop_txq(struct qede_dev *edev,
1693 struct qede_tx_queue *txq, int rss_id)
1694 {
1695 return edev->ops->q_tx_stop(edev->cdev, rss_id, txq->handle);
1696 }
1697
1698 static int qede_stop_queues(struct qede_dev *edev)
1699 {
1700 struct qed_update_vport_params *vport_update_params;
1701 struct qed_dev *cdev = edev->cdev;
1702 struct qede_fastpath *fp;
1703 int rc, i;
1704
1705 /* Disable the vport */
1706 vport_update_params = vzalloc(sizeof(*vport_update_params));
1707 if (!vport_update_params)
1708 return -ENOMEM;
1709
1710 vport_update_params->vport_id = 0;
1711 vport_update_params->update_vport_active_flg = 1;
1712 vport_update_params->vport_active_flg = 0;
1713 vport_update_params->update_rss_flg = 0;
1714
1715 rc = edev->ops->vport_update(cdev, vport_update_params);
1716 vfree(vport_update_params);
1717
1718 if (rc) {
1719 DP_ERR(edev, "Failed to update vport\n");
1720 return rc;
1721 }
1722
1723 /* Flush Tx queues. If needed, request drain from MCP */
1724 for_each_queue(i) {
1725 fp = &edev->fp_array[i];
1726
1727 if (fp->type & QEDE_FASTPATH_TX) {
1728 rc = qede_drain_txq(edev, fp->txq, true);
1729 if (rc)
1730 return rc;
1731 }
1732
1733 if (fp->type & QEDE_FASTPATH_XDP) {
1734 rc = qede_drain_txq(edev, fp->xdp_tx, true);
1735 if (rc)
1736 return rc;
1737 }
1738 }
1739
1740 /* Stop all Queues in reverse order */
1741 for (i = QEDE_QUEUE_CNT(edev) - 1; i >= 0; i--) {
1742 fp = &edev->fp_array[i];
1743
1744 /* Stop the Tx Queue(s) */
1745 if (fp->type & QEDE_FASTPATH_TX) {
1746 rc = qede_stop_txq(edev, fp->txq, i);
1747 if (rc)
1748 return rc;
1749 }
1750
1751 /* Stop the Rx Queue */
1752 if (fp->type & QEDE_FASTPATH_RX) {
1753 rc = edev->ops->q_rx_stop(cdev, i, fp->rxq->handle);
1754 if (rc) {
1755 DP_ERR(edev, "Failed to stop RXQ #%d\n", i);
1756 return rc;
1757 }
1758 }
1759
1760 /* Stop the XDP forwarding queue */
1761 if (fp->type & QEDE_FASTPATH_XDP) {
1762 rc = qede_stop_txq(edev, fp->xdp_tx, i);
1763 if (rc)
1764 return rc;
1765
1766 bpf_prog_put(fp->rxq->xdp_prog);
1767 }
1768 }
1769
1770 /* Stop the vport */
1771 rc = edev->ops->vport_stop(cdev, 0);
1772 if (rc)
1773 DP_ERR(edev, "Failed to stop VPORT\n");
1774
1775 return rc;
1776 }
1777
1778 static int qede_start_txq(struct qede_dev *edev,
1779 struct qede_fastpath *fp,
1780 struct qede_tx_queue *txq, u8 rss_id, u16 sb_idx)
1781 {
1782 dma_addr_t phys_table = qed_chain_get_pbl_phys(&txq->tx_pbl);
1783 u32 page_cnt = qed_chain_get_page_cnt(&txq->tx_pbl);
1784 struct qed_queue_start_common_params params;
1785 struct qed_txq_start_ret_params ret_params;
1786 int rc;
1787
1788 memset(&params, 0, sizeof(params));
1789 memset(&ret_params, 0, sizeof(ret_params));
1790
1791 /* Let the XDP queue share the queue-zone with one of the regular txq.
1792 * We don't really care about its coalescing.
1793 */
1794 if (txq->is_xdp)
1795 params.queue_id = QEDE_TXQ_XDP_TO_IDX(edev, txq);
1796 else
1797 params.queue_id = txq->index;
1798
1799 params.p_sb = fp->sb_info;
1800 params.sb_idx = sb_idx;
1801
1802 rc = edev->ops->q_tx_start(edev->cdev, rss_id, &params, phys_table,
1803 page_cnt, &ret_params);
1804 if (rc) {
1805 DP_ERR(edev, "Start TXQ #%d failed %d\n", txq->index, rc);
1806 return rc;
1807 }
1808
1809 txq->doorbell_addr = ret_params.p_doorbell;
1810 txq->handle = ret_params.p_handle;
1811
1812 /* Determine the FW consumer address associated */
1813 txq->hw_cons_ptr = &fp->sb_info->sb_virt->pi_array[sb_idx];
1814
1815 /* Prepare the doorbell parameters */
1816 SET_FIELD(txq->tx_db.data.params, ETH_DB_DATA_DEST, DB_DEST_XCM);
1817 SET_FIELD(txq->tx_db.data.params, ETH_DB_DATA_AGG_CMD, DB_AGG_CMD_SET);
1818 SET_FIELD(txq->tx_db.data.params, ETH_DB_DATA_AGG_VAL_SEL,
1819 DQ_XCM_ETH_TX_BD_PROD_CMD);
1820 txq->tx_db.data.agg_flags = DQ_XCM_ETH_DQ_CF_CMD;
1821
1822 return rc;
1823 }
1824
1825 static int qede_start_queues(struct qede_dev *edev, bool clear_stats)
1826 {
1827 int vlan_removal_en = 1;
1828 struct qed_dev *cdev = edev->cdev;
1829 struct qed_dev_info *qed_info = &edev->dev_info.common;
1830 struct qed_update_vport_params *vport_update_params;
1831 struct qed_queue_start_common_params q_params;
1832 struct qed_start_vport_params start = {0};
1833 int rc, i;
1834
1835 if (!edev->num_queues) {
1836 DP_ERR(edev,
1837 "Cannot update V-VPORT as active as there are no Rx queues\n");
1838 return -EINVAL;
1839 }
1840
1841 vport_update_params = vzalloc(sizeof(*vport_update_params));
1842 if (!vport_update_params)
1843 return -ENOMEM;
1844
1845 start.handle_ptp_pkts = !!(edev->ptp);
1846 start.gro_enable = !edev->gro_disable;
1847 start.mtu = edev->ndev->mtu;
1848 start.vport_id = 0;
1849 start.drop_ttl0 = true;
1850 start.remove_inner_vlan = vlan_removal_en;
1851 start.clear_stats = clear_stats;
1852
1853 rc = edev->ops->vport_start(cdev, &start);
1854
1855 if (rc) {
1856 DP_ERR(edev, "Start V-PORT failed %d\n", rc);
1857 goto out;
1858 }
1859
1860 DP_VERBOSE(edev, NETIF_MSG_IFUP,
1861 "Start vport ramrod passed, vport_id = %d, MTU = %d, vlan_removal_en = %d\n",
1862 start.vport_id, edev->ndev->mtu + 0xe, vlan_removal_en);
1863
1864 for_each_queue(i) {
1865 struct qede_fastpath *fp = &edev->fp_array[i];
1866 dma_addr_t p_phys_table;
1867 u32 page_cnt;
1868
1869 if (fp->type & QEDE_FASTPATH_RX) {
1870 struct qed_rxq_start_ret_params ret_params;
1871 struct qede_rx_queue *rxq = fp->rxq;
1872 __le16 *val;
1873
1874 memset(&ret_params, 0, sizeof(ret_params));
1875 memset(&q_params, 0, sizeof(q_params));
1876 q_params.queue_id = rxq->rxq_id;
1877 q_params.vport_id = 0;
1878 q_params.p_sb = fp->sb_info;
1879 q_params.sb_idx = RX_PI;
1880
1881 p_phys_table =
1882 qed_chain_get_pbl_phys(&rxq->rx_comp_ring);
1883 page_cnt = qed_chain_get_page_cnt(&rxq->rx_comp_ring);
1884
1885 rc = edev->ops->q_rx_start(cdev, i, &q_params,
1886 rxq->rx_buf_size,
1887 rxq->rx_bd_ring.p_phys_addr,
1888 p_phys_table,
1889 page_cnt, &ret_params);
1890 if (rc) {
1891 DP_ERR(edev, "Start RXQ #%d failed %d\n", i,
1892 rc);
1893 goto out;
1894 }
1895
1896 /* Use the return parameters */
1897 rxq->hw_rxq_prod_addr = ret_params.p_prod;
1898 rxq->handle = ret_params.p_handle;
1899
1900 val = &fp->sb_info->sb_virt->pi_array[RX_PI];
1901 rxq->hw_cons_ptr = val;
1902
1903 qede_update_rx_prod(edev, rxq);
1904 }
1905
1906 if (fp->type & QEDE_FASTPATH_XDP) {
1907 rc = qede_start_txq(edev, fp, fp->xdp_tx, i, XDP_PI);
1908 if (rc)
1909 goto out;
1910
1911 fp->rxq->xdp_prog = bpf_prog_add(edev->xdp_prog, 1);
1912 if (IS_ERR(fp->rxq->xdp_prog)) {
1913 rc = PTR_ERR(fp->rxq->xdp_prog);
1914 fp->rxq->xdp_prog = NULL;
1915 goto out;
1916 }
1917 }
1918
1919 if (fp->type & QEDE_FASTPATH_TX) {
1920 rc = qede_start_txq(edev, fp, fp->txq, i, TX_PI(0));
1921 if (rc)
1922 goto out;
1923 }
1924 }
1925
1926 /* Prepare and send the vport enable */
1927 vport_update_params->vport_id = start.vport_id;
1928 vport_update_params->update_vport_active_flg = 1;
1929 vport_update_params->vport_active_flg = 1;
1930
1931 if ((qed_info->mf_mode == QED_MF_NPAR || pci_num_vf(edev->pdev)) &&
1932 qed_info->tx_switching) {
1933 vport_update_params->update_tx_switching_flg = 1;
1934 vport_update_params->tx_switching_flg = 1;
1935 }
1936
1937 qede_fill_rss_params(edev, &vport_update_params->rss_params,
1938 &vport_update_params->update_rss_flg);
1939
1940 rc = edev->ops->vport_update(cdev, vport_update_params);
1941 if (rc)
1942 DP_ERR(edev, "Update V-PORT failed %d\n", rc);
1943
1944 out:
1945 vfree(vport_update_params);
1946 return rc;
1947 }
1948
1949 enum qede_unload_mode {
1950 QEDE_UNLOAD_NORMAL,
1951 };
1952
1953 static void qede_unload(struct qede_dev *edev, enum qede_unload_mode mode,
1954 bool is_locked)
1955 {
1956 struct qed_link_params link_params;
1957 int rc;
1958
1959 DP_INFO(edev, "Starting qede unload\n");
1960
1961 if (!is_locked)
1962 __qede_lock(edev);
1963
1964 edev->state = QEDE_STATE_CLOSED;
1965
1966 qede_rdma_dev_event_close(edev);
1967
1968 /* Close OS Tx */
1969 netif_tx_disable(edev->ndev);
1970 netif_carrier_off(edev->ndev);
1971
1972 /* Reset the link */
1973 memset(&link_params, 0, sizeof(link_params));
1974 link_params.link_up = false;
1975 edev->ops->common->set_link(edev->cdev, &link_params);
1976 rc = qede_stop_queues(edev);
1977 if (rc) {
1978 qede_sync_free_irqs(edev);
1979 goto out;
1980 }
1981
1982 DP_INFO(edev, "Stopped Queues\n");
1983
1984 qede_vlan_mark_nonconfigured(edev);
1985 edev->ops->fastpath_stop(edev->cdev);
1986
1987 if (!IS_VF(edev) && edev->dev_info.common.num_hwfns == 1) {
1988 qede_poll_for_freeing_arfs_filters(edev);
1989 qede_free_arfs(edev);
1990 }
1991
1992 /* Release the interrupts */
1993 qede_sync_free_irqs(edev);
1994 edev->ops->common->set_fp_int(edev->cdev, 0);
1995
1996 qede_napi_disable_remove(edev);
1997
1998 qede_free_mem_load(edev);
1999 qede_free_fp_array(edev);
2000
2001 out:
2002 if (!is_locked)
2003 __qede_unlock(edev);
2004 DP_INFO(edev, "Ending qede unload\n");
2005 }
2006
2007 enum qede_load_mode {
2008 QEDE_LOAD_NORMAL,
2009 QEDE_LOAD_RELOAD,
2010 };
2011
2012 static int qede_load(struct qede_dev *edev, enum qede_load_mode mode,
2013 bool is_locked)
2014 {
2015 struct qed_link_params link_params;
2016 int rc;
2017
2018 DP_INFO(edev, "Starting qede load\n");
2019
2020 if (!is_locked)
2021 __qede_lock(edev);
2022
2023 rc = qede_set_num_queues(edev);
2024 if (rc)
2025 goto out;
2026
2027 rc = qede_alloc_fp_array(edev);
2028 if (rc)
2029 goto out;
2030
2031 qede_init_fp(edev);
2032
2033 rc = qede_alloc_mem_load(edev);
2034 if (rc)
2035 goto err1;
2036 DP_INFO(edev, "Allocated %d Rx, %d Tx queues\n",
2037 QEDE_RSS_COUNT(edev), QEDE_TSS_COUNT(edev));
2038
2039 rc = qede_set_real_num_queues(edev);
2040 if (rc)
2041 goto err2;
2042
2043 if (!IS_VF(edev) && edev->dev_info.common.num_hwfns == 1) {
2044 rc = qede_alloc_arfs(edev);
2045 if (rc)
2046 DP_NOTICE(edev, "aRFS memory allocation failed\n");
2047 }
2048
2049 qede_napi_add_enable(edev);
2050 DP_INFO(edev, "Napi added and enabled\n");
2051
2052 rc = qede_setup_irqs(edev);
2053 if (rc)
2054 goto err3;
2055 DP_INFO(edev, "Setup IRQs succeeded\n");
2056
2057 rc = qede_start_queues(edev, mode != QEDE_LOAD_RELOAD);
2058 if (rc)
2059 goto err4;
2060 DP_INFO(edev, "Start VPORT, RXQ and TXQ succeeded\n");
2061
2062 /* Program un-configured VLANs */
2063 qede_configure_vlan_filters(edev);
2064
2065 /* Ask for link-up using current configuration */
2066 memset(&link_params, 0, sizeof(link_params));
2067 link_params.link_up = true;
2068 edev->ops->common->set_link(edev->cdev, &link_params);
2069
2070 edev->state = QEDE_STATE_OPEN;
2071
2072 DP_INFO(edev, "Ending successfully qede load\n");
2073
2074 goto out;
2075 err4:
2076 qede_sync_free_irqs(edev);
2077 memset(&edev->int_info.msix_cnt, 0, sizeof(struct qed_int_info));
2078 err3:
2079 qede_napi_disable_remove(edev);
2080 err2:
2081 qede_free_mem_load(edev);
2082 err1:
2083 edev->ops->common->set_fp_int(edev->cdev, 0);
2084 qede_free_fp_array(edev);
2085 edev->num_queues = 0;
2086 edev->fp_num_tx = 0;
2087 edev->fp_num_rx = 0;
2088 out:
2089 if (!is_locked)
2090 __qede_unlock(edev);
2091
2092 return rc;
2093 }
2094
2095 /* 'func' should be able to run between unload and reload assuming interface
2096 * is actually running, or afterwards in case it's currently DOWN.
2097 */
2098 void qede_reload(struct qede_dev *edev,
2099 struct qede_reload_args *args, bool is_locked)
2100 {
2101 if (!is_locked)
2102 __qede_lock(edev);
2103
2104 /* Since qede_lock is held, internal state wouldn't change even
2105 * if netdev state would start transitioning. Check whether current
2106 * internal configuration indicates device is up, then reload.
2107 */
2108 if (edev->state == QEDE_STATE_OPEN) {
2109 qede_unload(edev, QEDE_UNLOAD_NORMAL, true);
2110 if (args)
2111 args->func(edev, args);
2112 qede_load(edev, QEDE_LOAD_RELOAD, true);
2113
2114 /* Since no one is going to do it for us, re-configure */
2115 qede_config_rx_mode(edev->ndev);
2116 } else if (args) {
2117 args->func(edev, args);
2118 }
2119
2120 if (!is_locked)
2121 __qede_unlock(edev);
2122 }
2123
2124 /* called with rtnl_lock */
2125 static int qede_open(struct net_device *ndev)
2126 {
2127 struct qede_dev *edev = netdev_priv(ndev);
2128 int rc;
2129
2130 netif_carrier_off(ndev);
2131
2132 edev->ops->common->set_power_state(edev->cdev, PCI_D0);
2133
2134 rc = qede_load(edev, QEDE_LOAD_NORMAL, false);
2135 if (rc)
2136 return rc;
2137
2138 udp_tunnel_get_rx_info(ndev);
2139
2140 edev->ops->common->update_drv_state(edev->cdev, true);
2141
2142 return 0;
2143 }
2144
2145 static int qede_close(struct net_device *ndev)
2146 {
2147 struct qede_dev *edev = netdev_priv(ndev);
2148
2149 qede_unload(edev, QEDE_UNLOAD_NORMAL, false);
2150
2151 edev->ops->common->update_drv_state(edev->cdev, false);
2152
2153 return 0;
2154 }
2155
2156 static void qede_link_update(void *dev, struct qed_link_output *link)
2157 {
2158 struct qede_dev *edev = dev;
2159
2160 if (!netif_running(edev->ndev)) {
2161 DP_VERBOSE(edev, NETIF_MSG_LINK, "Interface is not running\n");
2162 return;
2163 }
2164
2165 if (link->link_up) {
2166 if (!netif_carrier_ok(edev->ndev)) {
2167 DP_NOTICE(edev, "Link is up\n");
2168 netif_tx_start_all_queues(edev->ndev);
2169 netif_carrier_on(edev->ndev);
2170 qede_rdma_dev_event_open(edev);
2171 }
2172 } else {
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);
2177 qede_rdma_dev_event_close(edev);
2178 }
2179 }
2180 }
Linux with added FPC-III support