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c27a02cd YP |
1 | /* |
2 | * Copyright (c) 2007 Mellanox Technologies. All rights reserved. | |
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 | */ | |
33 | ||
34 | #include <linux/etherdevice.h> | |
35 | #include <linux/tcp.h> | |
36 | #include <linux/if_vlan.h> | |
37 | #include <linux/delay.h> | |
38 | ||
39 | #include <linux/mlx4/driver.h> | |
40 | #include <linux/mlx4/device.h> | |
41 | #include <linux/mlx4/cmd.h> | |
42 | #include <linux/mlx4/cq.h> | |
43 | ||
44 | #include "mlx4_en.h" | |
45 | #include "en_port.h" | |
46 | ||
47 | ||
48 | static void mlx4_en_vlan_rx_register(struct net_device *dev, struct vlan_group *grp) | |
49 | { | |
50 | struct mlx4_en_priv *priv = netdev_priv(dev); | |
51 | struct mlx4_en_dev *mdev = priv->mdev; | |
52 | int err; | |
53 | ||
54 | mlx4_dbg(HW, priv, "Registering VLAN group:%p\n", grp); | |
55 | priv->vlgrp = grp; | |
56 | ||
57 | mutex_lock(&mdev->state_lock); | |
58 | if (mdev->device_up && priv->port_up) { | |
59 | err = mlx4_SET_VLAN_FLTR(mdev->dev, priv->port, grp); | |
60 | if (err) | |
61 | mlx4_err(mdev, "Failed configuring VLAN filter\n"); | |
62 | } | |
63 | mutex_unlock(&mdev->state_lock); | |
64 | } | |
65 | ||
66 | static void mlx4_en_vlan_rx_add_vid(struct net_device *dev, unsigned short vid) | |
67 | { | |
68 | struct mlx4_en_priv *priv = netdev_priv(dev); | |
69 | struct mlx4_en_dev *mdev = priv->mdev; | |
70 | int err; | |
71 | ||
72 | if (!priv->vlgrp) | |
73 | return; | |
74 | ||
75 | mlx4_dbg(HW, priv, "adding VLAN:%d (vlgrp entry:%p)\n", | |
76 | vid, vlan_group_get_device(priv->vlgrp, vid)); | |
77 | ||
78 | /* Add VID to port VLAN filter */ | |
79 | mutex_lock(&mdev->state_lock); | |
80 | if (mdev->device_up && priv->port_up) { | |
81 | err = mlx4_SET_VLAN_FLTR(mdev->dev, priv->port, priv->vlgrp); | |
82 | if (err) | |
83 | mlx4_err(mdev, "Failed configuring VLAN filter\n"); | |
84 | } | |
85 | mutex_unlock(&mdev->state_lock); | |
86 | } | |
87 | ||
88 | static void mlx4_en_vlan_rx_kill_vid(struct net_device *dev, unsigned short vid) | |
89 | { | |
90 | struct mlx4_en_priv *priv = netdev_priv(dev); | |
91 | struct mlx4_en_dev *mdev = priv->mdev; | |
92 | int err; | |
93 | ||
94 | if (!priv->vlgrp) | |
95 | return; | |
96 | ||
97 | mlx4_dbg(HW, priv, "Killing VID:%d (vlgrp:%p vlgrp " | |
98 | "entry:%p)\n", vid, priv->vlgrp, | |
99 | vlan_group_get_device(priv->vlgrp, vid)); | |
100 | vlan_group_set_device(priv->vlgrp, vid, NULL); | |
101 | ||
102 | /* Remove VID from port VLAN filter */ | |
103 | mutex_lock(&mdev->state_lock); | |
104 | if (mdev->device_up && priv->port_up) { | |
105 | err = mlx4_SET_VLAN_FLTR(mdev->dev, priv->port, priv->vlgrp); | |
106 | if (err) | |
107 | mlx4_err(mdev, "Failed configuring VLAN filter\n"); | |
108 | } | |
109 | mutex_unlock(&mdev->state_lock); | |
110 | } | |
111 | ||
112 | static u64 mlx4_en_mac_to_u64(u8 *addr) | |
113 | { | |
114 | u64 mac = 0; | |
115 | int i; | |
116 | ||
117 | for (i = 0; i < ETH_ALEN; i++) { | |
118 | mac <<= 8; | |
119 | mac |= addr[i]; | |
120 | } | |
121 | return mac; | |
122 | } | |
123 | ||
124 | static int mlx4_en_set_mac(struct net_device *dev, void *addr) | |
125 | { | |
126 | struct mlx4_en_priv *priv = netdev_priv(dev); | |
127 | struct mlx4_en_dev *mdev = priv->mdev; | |
128 | struct sockaddr *saddr = addr; | |
129 | ||
130 | if (!is_valid_ether_addr(saddr->sa_data)) | |
131 | return -EADDRNOTAVAIL; | |
132 | ||
133 | memcpy(dev->dev_addr, saddr->sa_data, ETH_ALEN); | |
134 | priv->mac = mlx4_en_mac_to_u64(dev->dev_addr); | |
135 | queue_work(mdev->workqueue, &priv->mac_task); | |
136 | return 0; | |
137 | } | |
138 | ||
139 | static void mlx4_en_do_set_mac(struct work_struct *work) | |
140 | { | |
141 | struct mlx4_en_priv *priv = container_of(work, struct mlx4_en_priv, | |
142 | mac_task); | |
143 | struct mlx4_en_dev *mdev = priv->mdev; | |
144 | int err = 0; | |
145 | ||
146 | mutex_lock(&mdev->state_lock); | |
147 | if (priv->port_up) { | |
148 | /* Remove old MAC and insert the new one */ | |
149 | mlx4_unregister_mac(mdev->dev, priv->port, priv->mac_index); | |
150 | err = mlx4_register_mac(mdev->dev, priv->port, | |
151 | priv->mac, &priv->mac_index); | |
152 | if (err) | |
153 | mlx4_err(mdev, "Failed changing HW MAC address\n"); | |
154 | } else | |
155 | mlx4_dbg(HW, priv, "Port is down, exiting...\n"); | |
156 | ||
157 | mutex_unlock(&mdev->state_lock); | |
158 | } | |
159 | ||
160 | static void mlx4_en_clear_list(struct net_device *dev) | |
161 | { | |
162 | struct mlx4_en_priv *priv = netdev_priv(dev); | |
163 | struct dev_mc_list *plist = priv->mc_list; | |
164 | struct dev_mc_list *next; | |
165 | ||
166 | while (plist) { | |
167 | next = plist->next; | |
168 | kfree(plist); | |
169 | plist = next; | |
170 | } | |
171 | priv->mc_list = NULL; | |
172 | } | |
173 | ||
174 | static void mlx4_en_cache_mclist(struct net_device *dev) | |
175 | { | |
176 | struct mlx4_en_priv *priv = netdev_priv(dev); | |
177 | struct mlx4_en_dev *mdev = priv->mdev; | |
178 | struct dev_mc_list *mclist; | |
179 | struct dev_mc_list *tmp; | |
180 | struct dev_mc_list *plist = NULL; | |
181 | ||
182 | for (mclist = dev->mc_list; mclist; mclist = mclist->next) { | |
183 | tmp = kmalloc(sizeof(struct dev_mc_list), GFP_ATOMIC); | |
184 | if (!tmp) { | |
185 | mlx4_err(mdev, "failed to allocate multicast list\n"); | |
186 | mlx4_en_clear_list(dev); | |
187 | return; | |
188 | } | |
189 | memcpy(tmp, mclist, sizeof(struct dev_mc_list)); | |
190 | tmp->next = NULL; | |
191 | if (plist) | |
192 | plist->next = tmp; | |
193 | else | |
194 | priv->mc_list = tmp; | |
195 | plist = tmp; | |
196 | } | |
197 | } | |
198 | ||
199 | ||
200 | static void mlx4_en_set_multicast(struct net_device *dev) | |
201 | { | |
202 | struct mlx4_en_priv *priv = netdev_priv(dev); | |
203 | ||
204 | if (!priv->port_up) | |
205 | return; | |
206 | ||
207 | queue_work(priv->mdev->workqueue, &priv->mcast_task); | |
208 | } | |
209 | ||
210 | static void mlx4_en_do_set_multicast(struct work_struct *work) | |
211 | { | |
212 | struct mlx4_en_priv *priv = container_of(work, struct mlx4_en_priv, | |
213 | mcast_task); | |
214 | struct mlx4_en_dev *mdev = priv->mdev; | |
215 | struct net_device *dev = priv->dev; | |
216 | struct dev_mc_list *mclist; | |
217 | u64 mcast_addr = 0; | |
218 | int err; | |
219 | ||
220 | mutex_lock(&mdev->state_lock); | |
221 | if (!mdev->device_up) { | |
222 | mlx4_dbg(HW, priv, "Card is not up, ignoring " | |
223 | "multicast change.\n"); | |
224 | goto out; | |
225 | } | |
226 | if (!priv->port_up) { | |
227 | mlx4_dbg(HW, priv, "Port is down, ignoring " | |
228 | "multicast change.\n"); | |
229 | goto out; | |
230 | } | |
231 | ||
232 | /* | |
233 | * Promsicuous mode: disable all filters | |
234 | */ | |
235 | ||
236 | if (dev->flags & IFF_PROMISC) { | |
237 | if (!(priv->flags & MLX4_EN_FLAG_PROMISC)) { | |
238 | if (netif_msg_rx_status(priv)) | |
239 | mlx4_warn(mdev, "Port:%d entering promiscuous mode\n", | |
240 | priv->port); | |
241 | priv->flags |= MLX4_EN_FLAG_PROMISC; | |
242 | ||
243 | /* Enable promiscouos mode */ | |
244 | err = mlx4_SET_PORT_qpn_calc(mdev->dev, priv->port, | |
245 | priv->base_qpn, 1); | |
246 | if (err) | |
247 | mlx4_err(mdev, "Failed enabling " | |
248 | "promiscous mode\n"); | |
249 | ||
250 | /* Disable port multicast filter (unconditionally) */ | |
251 | err = mlx4_SET_MCAST_FLTR(mdev->dev, priv->port, 0, | |
252 | 0, MLX4_MCAST_DISABLE); | |
253 | if (err) | |
254 | mlx4_err(mdev, "Failed disabling " | |
255 | "multicast filter\n"); | |
256 | ||
257 | /* Disable port VLAN filter */ | |
258 | err = mlx4_SET_VLAN_FLTR(mdev->dev, priv->port, NULL); | |
259 | if (err) | |
260 | mlx4_err(mdev, "Failed disabling " | |
261 | "VLAN filter\n"); | |
262 | } | |
263 | goto out; | |
264 | } | |
265 | ||
266 | /* | |
267 | * Not in promiscous mode | |
268 | */ | |
269 | ||
270 | if (priv->flags & MLX4_EN_FLAG_PROMISC) { | |
271 | if (netif_msg_rx_status(priv)) | |
272 | mlx4_warn(mdev, "Port:%d leaving promiscuous mode\n", | |
273 | priv->port); | |
274 | priv->flags &= ~MLX4_EN_FLAG_PROMISC; | |
275 | ||
276 | /* Disable promiscouos mode */ | |
277 | err = mlx4_SET_PORT_qpn_calc(mdev->dev, priv->port, | |
278 | priv->base_qpn, 0); | |
279 | if (err) | |
280 | mlx4_err(mdev, "Failed disabling promiscous mode\n"); | |
281 | ||
282 | /* Enable port VLAN filter */ | |
283 | err = mlx4_SET_VLAN_FLTR(mdev->dev, priv->port, priv->vlgrp); | |
284 | if (err) | |
285 | mlx4_err(mdev, "Failed enabling VLAN filter\n"); | |
286 | } | |
287 | ||
288 | /* Enable/disable the multicast filter according to IFF_ALLMULTI */ | |
289 | if (dev->flags & IFF_ALLMULTI) { | |
290 | err = mlx4_SET_MCAST_FLTR(mdev->dev, priv->port, 0, | |
291 | 0, MLX4_MCAST_DISABLE); | |
292 | if (err) | |
293 | mlx4_err(mdev, "Failed disabling multicast filter\n"); | |
294 | } else { | |
295 | err = mlx4_SET_MCAST_FLTR(mdev->dev, priv->port, 0, | |
296 | 0, MLX4_MCAST_DISABLE); | |
297 | if (err) | |
298 | mlx4_err(mdev, "Failed disabling multicast filter\n"); | |
299 | ||
300 | /* Flush mcast filter and init it with broadcast address */ | |
301 | mlx4_SET_MCAST_FLTR(mdev->dev, priv->port, ETH_BCAST, | |
302 | 1, MLX4_MCAST_CONFIG); | |
303 | ||
304 | /* Update multicast list - we cache all addresses so they won't | |
305 | * change while HW is updated holding the command semaphor */ | |
306 | netif_tx_lock_bh(dev); | |
307 | mlx4_en_cache_mclist(dev); | |
308 | netif_tx_unlock_bh(dev); | |
309 | for (mclist = priv->mc_list; mclist; mclist = mclist->next) { | |
310 | mcast_addr = mlx4_en_mac_to_u64(mclist->dmi_addr); | |
311 | mlx4_SET_MCAST_FLTR(mdev->dev, priv->port, | |
312 | mcast_addr, 0, MLX4_MCAST_CONFIG); | |
313 | } | |
314 | err = mlx4_SET_MCAST_FLTR(mdev->dev, priv->port, 0, | |
315 | 0, MLX4_MCAST_ENABLE); | |
316 | if (err) | |
317 | mlx4_err(mdev, "Failed enabling multicast filter\n"); | |
318 | ||
319 | mlx4_en_clear_list(dev); | |
320 | } | |
321 | out: | |
322 | mutex_unlock(&mdev->state_lock); | |
323 | } | |
324 | ||
325 | #ifdef CONFIG_NET_POLL_CONTROLLER | |
326 | static void mlx4_en_netpoll(struct net_device *dev) | |
327 | { | |
328 | struct mlx4_en_priv *priv = netdev_priv(dev); | |
329 | struct mlx4_en_cq *cq; | |
330 | unsigned long flags; | |
331 | int i; | |
332 | ||
333 | for (i = 0; i < priv->rx_ring_num; i++) { | |
334 | cq = &priv->rx_cq[i]; | |
335 | spin_lock_irqsave(&cq->lock, flags); | |
336 | napi_synchronize(&cq->napi); | |
337 | mlx4_en_process_rx_cq(dev, cq, 0); | |
338 | spin_unlock_irqrestore(&cq->lock, flags); | |
339 | } | |
340 | } | |
341 | #endif | |
342 | ||
343 | static void mlx4_en_tx_timeout(struct net_device *dev) | |
344 | { | |
345 | struct mlx4_en_priv *priv = netdev_priv(dev); | |
346 | struct mlx4_en_dev *mdev = priv->mdev; | |
347 | ||
348 | if (netif_msg_timer(priv)) | |
349 | mlx4_warn(mdev, "Tx timeout called on port:%d\n", priv->port); | |
350 | ||
351 | if (netif_carrier_ok(dev)) { | |
352 | priv->port_stats.tx_timeout++; | |
353 | mlx4_dbg(DRV, priv, "Scheduling watchdog\n"); | |
354 | queue_work(mdev->workqueue, &priv->watchdog_task); | |
355 | } | |
356 | } | |
357 | ||
358 | ||
359 | static struct net_device_stats *mlx4_en_get_stats(struct net_device *dev) | |
360 | { | |
361 | struct mlx4_en_priv *priv = netdev_priv(dev); | |
362 | ||
363 | spin_lock_bh(&priv->stats_lock); | |
364 | memcpy(&priv->ret_stats, &priv->stats, sizeof(priv->stats)); | |
365 | spin_unlock_bh(&priv->stats_lock); | |
366 | ||
367 | return &priv->ret_stats; | |
368 | } | |
369 | ||
370 | static void mlx4_en_set_default_moderation(struct mlx4_en_priv *priv) | |
371 | { | |
c27a02cd YP |
372 | struct mlx4_en_cq *cq; |
373 | int i; | |
374 | ||
375 | /* If we haven't received a specific coalescing setting | |
376 | * (module param), we set the moderation paramters as follows: | |
377 | * - moder_cnt is set to the number of mtu sized packets to | |
378 | * satisfy our coelsing target. | |
379 | * - moder_time is set to a fixed value. | |
380 | */ | |
60b9f9e5 YP |
381 | priv->rx_frames = MLX4_EN_RX_COAL_TARGET / priv->dev->mtu + 1; |
382 | priv->rx_usecs = MLX4_EN_RX_COAL_TIME; | |
c27a02cd YP |
383 | mlx4_dbg(INTR, priv, "Default coalesing params for mtu:%d - " |
384 | "rx_frames:%d rx_usecs:%d\n", | |
385 | priv->dev->mtu, priv->rx_frames, priv->rx_usecs); | |
386 | ||
387 | /* Setup cq moderation params */ | |
388 | for (i = 0; i < priv->rx_ring_num; i++) { | |
389 | cq = &priv->rx_cq[i]; | |
390 | cq->moder_cnt = priv->rx_frames; | |
391 | cq->moder_time = priv->rx_usecs; | |
392 | } | |
393 | ||
394 | for (i = 0; i < priv->tx_ring_num; i++) { | |
395 | cq = &priv->tx_cq[i]; | |
396 | cq->moder_cnt = MLX4_EN_TX_COAL_PKTS; | |
397 | cq->moder_time = MLX4_EN_TX_COAL_TIME; | |
398 | } | |
399 | ||
400 | /* Reset auto-moderation params */ | |
401 | priv->pkt_rate_low = MLX4_EN_RX_RATE_LOW; | |
402 | priv->rx_usecs_low = MLX4_EN_RX_COAL_TIME_LOW; | |
403 | priv->pkt_rate_high = MLX4_EN_RX_RATE_HIGH; | |
404 | priv->rx_usecs_high = MLX4_EN_RX_COAL_TIME_HIGH; | |
405 | priv->sample_interval = MLX4_EN_SAMPLE_INTERVAL; | |
60b9f9e5 | 406 | priv->adaptive_rx_coal = 1; |
c27a02cd YP |
407 | priv->last_moder_time = MLX4_EN_AUTO_CONF; |
408 | priv->last_moder_jiffies = 0; | |
409 | priv->last_moder_packets = 0; | |
410 | priv->last_moder_tx_packets = 0; | |
411 | priv->last_moder_bytes = 0; | |
412 | } | |
413 | ||
414 | static void mlx4_en_auto_moderation(struct mlx4_en_priv *priv) | |
415 | { | |
416 | unsigned long period = (unsigned long) (jiffies - priv->last_moder_jiffies); | |
417 | struct mlx4_en_dev *mdev = priv->mdev; | |
418 | struct mlx4_en_cq *cq; | |
419 | unsigned long packets; | |
420 | unsigned long rate; | |
421 | unsigned long avg_pkt_size; | |
422 | unsigned long rx_packets; | |
423 | unsigned long rx_bytes; | |
424 | unsigned long tx_packets; | |
425 | unsigned long tx_pkt_diff; | |
426 | unsigned long rx_pkt_diff; | |
427 | int moder_time; | |
428 | int i, err; | |
429 | ||
430 | if (!priv->adaptive_rx_coal || period < priv->sample_interval * HZ) | |
431 | return; | |
432 | ||
433 | spin_lock_bh(&priv->stats_lock); | |
434 | rx_packets = priv->stats.rx_packets; | |
435 | rx_bytes = priv->stats.rx_bytes; | |
436 | tx_packets = priv->stats.tx_packets; | |
437 | spin_unlock_bh(&priv->stats_lock); | |
438 | ||
439 | if (!priv->last_moder_jiffies || !period) | |
440 | goto out; | |
441 | ||
442 | tx_pkt_diff = ((unsigned long) (tx_packets - | |
443 | priv->last_moder_tx_packets)); | |
444 | rx_pkt_diff = ((unsigned long) (rx_packets - | |
445 | priv->last_moder_packets)); | |
446 | packets = max(tx_pkt_diff, rx_pkt_diff); | |
447 | rate = packets * HZ / period; | |
448 | avg_pkt_size = packets ? ((unsigned long) (rx_bytes - | |
449 | priv->last_moder_bytes)) / packets : 0; | |
450 | ||
451 | /* Apply auto-moderation only when packet rate exceeds a rate that | |
452 | * it matters */ | |
453 | if (rate > MLX4_EN_RX_RATE_THRESH) { | |
454 | /* If tx and rx packet rates are not balanced, assume that | |
455 | * traffic is mainly BW bound and apply maximum moderation. | |
456 | * Otherwise, moderate according to packet rate */ | |
457 | if (2 * tx_pkt_diff > 3 * rx_pkt_diff || | |
458 | 2 * rx_pkt_diff > 3 * tx_pkt_diff) { | |
459 | moder_time = priv->rx_usecs_high; | |
460 | } else { | |
461 | if (rate < priv->pkt_rate_low) | |
462 | moder_time = priv->rx_usecs_low; | |
463 | else if (rate > priv->pkt_rate_high) | |
464 | moder_time = priv->rx_usecs_high; | |
465 | else | |
466 | moder_time = (rate - priv->pkt_rate_low) * | |
467 | (priv->rx_usecs_high - priv->rx_usecs_low) / | |
468 | (priv->pkt_rate_high - priv->pkt_rate_low) + | |
469 | priv->rx_usecs_low; | |
470 | } | |
471 | } else { | |
472 | /* When packet rate is low, use default moderation rather than | |
473 | * 0 to prevent interrupt storms if traffic suddenly increases */ | |
474 | moder_time = priv->rx_usecs; | |
475 | } | |
476 | ||
477 | mlx4_dbg(INTR, priv, "tx rate:%lu rx_rate:%lu\n", | |
478 | tx_pkt_diff * HZ / period, rx_pkt_diff * HZ / period); | |
479 | ||
480 | mlx4_dbg(INTR, priv, "Rx moder_time changed from:%d to %d period:%lu " | |
481 | "[jiff] packets:%lu avg_pkt_size:%lu rate:%lu [p/s])\n", | |
482 | priv->last_moder_time, moder_time, period, packets, | |
483 | avg_pkt_size, rate); | |
484 | ||
485 | if (moder_time != priv->last_moder_time) { | |
486 | priv->last_moder_time = moder_time; | |
487 | for (i = 0; i < priv->rx_ring_num; i++) { | |
488 | cq = &priv->rx_cq[i]; | |
489 | cq->moder_time = moder_time; | |
490 | err = mlx4_en_set_cq_moder(priv, cq); | |
491 | if (err) { | |
492 | mlx4_err(mdev, "Failed modifying moderation for cq:%d " | |
493 | "on port:%d\n", i, priv->port); | |
494 | break; | |
495 | } | |
496 | } | |
497 | } | |
498 | ||
499 | out: | |
500 | priv->last_moder_packets = rx_packets; | |
501 | priv->last_moder_tx_packets = tx_packets; | |
502 | priv->last_moder_bytes = rx_bytes; | |
503 | priv->last_moder_jiffies = jiffies; | |
504 | } | |
505 | ||
506 | static void mlx4_en_do_get_stats(struct work_struct *work) | |
507 | { | |
508 | struct delayed_work *delay = container_of(work, struct delayed_work, work); | |
509 | struct mlx4_en_priv *priv = container_of(delay, struct mlx4_en_priv, | |
510 | stats_task); | |
511 | struct mlx4_en_dev *mdev = priv->mdev; | |
512 | int err; | |
513 | ||
514 | err = mlx4_en_DUMP_ETH_STATS(mdev, priv->port, 0); | |
515 | if (err) | |
516 | mlx4_dbg(HW, priv, "Could not update stats for " | |
517 | "port:%d\n", priv->port); | |
518 | ||
519 | mutex_lock(&mdev->state_lock); | |
520 | if (mdev->device_up) { | |
521 | if (priv->port_up) | |
522 | mlx4_en_auto_moderation(priv); | |
523 | ||
524 | queue_delayed_work(mdev->workqueue, &priv->stats_task, STATS_DELAY); | |
525 | } | |
526 | mutex_unlock(&mdev->state_lock); | |
527 | } | |
528 | ||
529 | static void mlx4_en_linkstate(struct work_struct *work) | |
530 | { | |
531 | struct mlx4_en_priv *priv = container_of(work, struct mlx4_en_priv, | |
532 | linkstate_task); | |
533 | struct mlx4_en_dev *mdev = priv->mdev; | |
534 | int linkstate = priv->link_state; | |
535 | ||
536 | mutex_lock(&mdev->state_lock); | |
537 | /* If observable port state changed set carrier state and | |
538 | * report to system log */ | |
539 | if (priv->last_link_state != linkstate) { | |
540 | if (linkstate == MLX4_DEV_EVENT_PORT_DOWN) { | |
541 | if (netif_msg_link(priv)) | |
542 | mlx4_info(mdev, "Port %d - link down\n", priv->port); | |
543 | netif_carrier_off(priv->dev); | |
544 | } else { | |
545 | if (netif_msg_link(priv)) | |
546 | mlx4_info(mdev, "Port %d - link up\n", priv->port); | |
547 | netif_carrier_on(priv->dev); | |
548 | } | |
549 | } | |
550 | priv->last_link_state = linkstate; | |
551 | mutex_unlock(&mdev->state_lock); | |
552 | } | |
553 | ||
554 | ||
18cc42a3 | 555 | int mlx4_en_start_port(struct net_device *dev) |
c27a02cd YP |
556 | { |
557 | struct mlx4_en_priv *priv = netdev_priv(dev); | |
558 | struct mlx4_en_dev *mdev = priv->mdev; | |
559 | struct mlx4_en_cq *cq; | |
560 | struct mlx4_en_tx_ring *tx_ring; | |
561 | struct mlx4_en_rx_ring *rx_ring; | |
562 | int rx_index = 0; | |
563 | int tx_index = 0; | |
564 | u16 stride; | |
565 | int err = 0; | |
566 | int i; | |
567 | int j; | |
568 | ||
569 | if (priv->port_up) { | |
570 | mlx4_dbg(DRV, priv, "start port called while port already up\n"); | |
571 | return 0; | |
572 | } | |
573 | ||
574 | /* Calculate Rx buf size */ | |
575 | dev->mtu = min(dev->mtu, priv->max_mtu); | |
576 | mlx4_en_calc_rx_buf(dev); | |
577 | mlx4_dbg(DRV, priv, "Rx buf size:%d\n", priv->rx_skb_size); | |
578 | stride = roundup_pow_of_two(sizeof(struct mlx4_en_rx_desc) + | |
579 | DS_SIZE * priv->num_frags); | |
580 | /* Configure rx cq's and rings */ | |
581 | for (i = 0; i < priv->rx_ring_num; i++) { | |
582 | cq = &priv->rx_cq[i]; | |
583 | rx_ring = &priv->rx_ring[i]; | |
584 | ||
585 | err = mlx4_en_activate_cq(priv, cq); | |
586 | if (err) { | |
587 | mlx4_err(mdev, "Failed activating Rx CQ\n"); | |
588 | goto rx_err; | |
589 | } | |
590 | for (j = 0; j < cq->size; j++) | |
591 | cq->buf[j].owner_sr_opcode = MLX4_CQE_OWNER_MASK; | |
592 | err = mlx4_en_set_cq_moder(priv, cq); | |
593 | if (err) { | |
594 | mlx4_err(mdev, "Failed setting cq moderation parameters"); | |
595 | mlx4_en_deactivate_cq(priv, cq); | |
596 | goto cq_err; | |
597 | } | |
598 | mlx4_en_arm_cq(priv, cq); | |
599 | ||
600 | ++rx_index; | |
601 | } | |
602 | ||
603 | err = mlx4_en_activate_rx_rings(priv); | |
604 | if (err) { | |
605 | mlx4_err(mdev, "Failed to activate RX rings\n"); | |
606 | goto cq_err; | |
607 | } | |
608 | ||
609 | err = mlx4_en_config_rss_steer(priv); | |
610 | if (err) { | |
611 | mlx4_err(mdev, "Failed configuring rss steering\n"); | |
612 | goto rx_err; | |
613 | } | |
614 | ||
615 | /* Configure tx cq's and rings */ | |
616 | for (i = 0; i < priv->tx_ring_num; i++) { | |
617 | /* Configure cq */ | |
618 | cq = &priv->tx_cq[i]; | |
619 | err = mlx4_en_activate_cq(priv, cq); | |
620 | if (err) { | |
621 | mlx4_err(mdev, "Failed allocating Tx CQ\n"); | |
622 | goto tx_err; | |
623 | } | |
624 | err = mlx4_en_set_cq_moder(priv, cq); | |
625 | if (err) { | |
626 | mlx4_err(mdev, "Failed setting cq moderation parameters"); | |
627 | mlx4_en_deactivate_cq(priv, cq); | |
628 | goto tx_err; | |
629 | } | |
630 | mlx4_dbg(DRV, priv, "Resetting index of collapsed CQ:%d to -1\n", i); | |
631 | cq->buf->wqe_index = cpu_to_be16(0xffff); | |
632 | ||
633 | /* Configure ring */ | |
634 | tx_ring = &priv->tx_ring[i]; | |
635 | err = mlx4_en_activate_tx_ring(priv, tx_ring, cq->mcq.cqn, | |
636 | priv->rx_ring[0].srq.srqn); | |
637 | if (err) { | |
638 | mlx4_err(mdev, "Failed allocating Tx ring\n"); | |
639 | mlx4_en_deactivate_cq(priv, cq); | |
640 | goto tx_err; | |
641 | } | |
642 | /* Set initial ownership of all Tx TXBBs to SW (1) */ | |
643 | for (j = 0; j < tx_ring->buf_size; j += STAMP_STRIDE) | |
644 | *((u32 *) (tx_ring->buf + j)) = 0xffffffff; | |
645 | ++tx_index; | |
646 | } | |
647 | ||
648 | /* Configure port */ | |
649 | err = mlx4_SET_PORT_general(mdev->dev, priv->port, | |
650 | priv->rx_skb_size + ETH_FCS_LEN, | |
d53b93f2 YP |
651 | priv->prof->tx_pause, |
652 | priv->prof->tx_ppp, | |
653 | priv->prof->rx_pause, | |
654 | priv->prof->rx_ppp); | |
c27a02cd YP |
655 | if (err) { |
656 | mlx4_err(mdev, "Failed setting port general configurations" | |
657 | " for port %d, with error %d\n", priv->port, err); | |
658 | goto tx_err; | |
659 | } | |
660 | /* Set default qp number */ | |
661 | err = mlx4_SET_PORT_qpn_calc(mdev->dev, priv->port, priv->base_qpn, 0); | |
662 | if (err) { | |
663 | mlx4_err(mdev, "Failed setting default qp numbers\n"); | |
664 | goto tx_err; | |
665 | } | |
666 | /* Set port mac number */ | |
667 | mlx4_dbg(DRV, priv, "Setting mac for port %d\n", priv->port); | |
668 | err = mlx4_register_mac(mdev->dev, priv->port, | |
669 | priv->mac, &priv->mac_index); | |
670 | if (err) { | |
671 | mlx4_err(mdev, "Failed setting port mac\n"); | |
672 | goto tx_err; | |
673 | } | |
674 | ||
675 | /* Init port */ | |
676 | mlx4_dbg(HW, priv, "Initializing port\n"); | |
677 | err = mlx4_INIT_PORT(mdev->dev, priv->port); | |
678 | if (err) { | |
679 | mlx4_err(mdev, "Failed Initializing port\n"); | |
680 | goto mac_err; | |
681 | } | |
682 | ||
683 | /* Schedule multicast task to populate multicast list */ | |
684 | queue_work(mdev->workqueue, &priv->mcast_task); | |
685 | ||
686 | priv->port_up = true; | |
687 | netif_start_queue(dev); | |
688 | return 0; | |
689 | ||
690 | mac_err: | |
691 | mlx4_unregister_mac(mdev->dev, priv->port, priv->mac_index); | |
692 | tx_err: | |
693 | while (tx_index--) { | |
694 | mlx4_en_deactivate_tx_ring(priv, &priv->tx_ring[tx_index]); | |
695 | mlx4_en_deactivate_cq(priv, &priv->tx_cq[tx_index]); | |
696 | } | |
697 | ||
698 | mlx4_en_release_rss_steer(priv); | |
699 | rx_err: | |
700 | for (i = 0; i < priv->rx_ring_num; i++) | |
c1adbb96 | 701 | mlx4_en_deactivate_rx_ring(priv, &priv->rx_ring[i]); |
c27a02cd YP |
702 | cq_err: |
703 | while (rx_index--) | |
704 | mlx4_en_deactivate_cq(priv, &priv->rx_cq[rx_index]); | |
705 | ||
706 | return err; /* need to close devices */ | |
707 | } | |
708 | ||
709 | ||
18cc42a3 | 710 | void mlx4_en_stop_port(struct net_device *dev) |
c27a02cd YP |
711 | { |
712 | struct mlx4_en_priv *priv = netdev_priv(dev); | |
713 | struct mlx4_en_dev *mdev = priv->mdev; | |
714 | int i; | |
715 | ||
716 | if (!priv->port_up) { | |
717 | mlx4_dbg(DRV, priv, "stop port (%d) called while port already down\n", | |
718 | priv->port); | |
719 | return; | |
720 | } | |
721 | netif_stop_queue(dev); | |
722 | ||
723 | /* Synchronize with tx routine */ | |
724 | netif_tx_lock_bh(dev); | |
725 | priv->port_up = false; | |
726 | netif_tx_unlock_bh(dev); | |
727 | ||
728 | /* close port*/ | |
729 | mlx4_CLOSE_PORT(mdev->dev, priv->port); | |
730 | ||
731 | /* Unregister Mac address for the port */ | |
732 | mlx4_unregister_mac(mdev->dev, priv->port, priv->mac_index); | |
733 | ||
734 | /* Free TX Rings */ | |
735 | for (i = 0; i < priv->tx_ring_num; i++) { | |
736 | mlx4_en_deactivate_tx_ring(priv, &priv->tx_ring[i]); | |
737 | mlx4_en_deactivate_cq(priv, &priv->tx_cq[i]); | |
738 | } | |
739 | msleep(10); | |
740 | ||
741 | for (i = 0; i < priv->tx_ring_num; i++) | |
742 | mlx4_en_free_tx_buf(dev, &priv->tx_ring[i]); | |
743 | ||
744 | /* Free RSS qps */ | |
745 | mlx4_en_release_rss_steer(priv); | |
746 | ||
747 | /* Free RX Rings */ | |
748 | for (i = 0; i < priv->rx_ring_num; i++) { | |
749 | mlx4_en_deactivate_rx_ring(priv, &priv->rx_ring[i]); | |
750 | while (test_bit(NAPI_STATE_SCHED, &priv->rx_cq[i].napi.state)) | |
751 | msleep(1); | |
752 | mlx4_en_deactivate_cq(priv, &priv->rx_cq[i]); | |
753 | } | |
754 | } | |
755 | ||
756 | static void mlx4_en_restart(struct work_struct *work) | |
757 | { | |
758 | struct mlx4_en_priv *priv = container_of(work, struct mlx4_en_priv, | |
759 | watchdog_task); | |
760 | struct mlx4_en_dev *mdev = priv->mdev; | |
761 | struct net_device *dev = priv->dev; | |
762 | ||
763 | mlx4_dbg(DRV, priv, "Watchdog task called for port %d\n", priv->port); | |
764 | mlx4_en_stop_port(dev); | |
765 | if (mlx4_en_start_port(dev)) | |
766 | mlx4_err(mdev, "Failed restarting port %d\n", priv->port); | |
767 | } | |
768 | ||
769 | ||
770 | static int mlx4_en_open(struct net_device *dev) | |
771 | { | |
772 | struct mlx4_en_priv *priv = netdev_priv(dev); | |
773 | struct mlx4_en_dev *mdev = priv->mdev; | |
774 | int i; | |
775 | int err = 0; | |
776 | ||
777 | mutex_lock(&mdev->state_lock); | |
778 | ||
779 | if (!mdev->device_up) { | |
780 | mlx4_err(mdev, "Cannot open - device down/disabled\n"); | |
781 | err = -EBUSY; | |
782 | goto out; | |
783 | } | |
784 | ||
785 | /* Reset HW statistics and performance counters */ | |
786 | if (mlx4_en_DUMP_ETH_STATS(mdev, priv->port, 1)) | |
787 | mlx4_dbg(HW, priv, "Failed dumping statistics\n"); | |
788 | ||
789 | memset(&priv->stats, 0, sizeof(priv->stats)); | |
790 | memset(&priv->pstats, 0, sizeof(priv->pstats)); | |
791 | ||
792 | for (i = 0; i < priv->tx_ring_num; i++) { | |
793 | priv->tx_ring[i].bytes = 0; | |
794 | priv->tx_ring[i].packets = 0; | |
795 | } | |
796 | for (i = 0; i < priv->rx_ring_num; i++) { | |
797 | priv->rx_ring[i].bytes = 0; | |
798 | priv->rx_ring[i].packets = 0; | |
799 | } | |
800 | ||
801 | mlx4_en_set_default_moderation(priv); | |
802 | err = mlx4_en_start_port(dev); | |
803 | if (err) | |
804 | mlx4_err(mdev, "Failed starting port:%d\n", priv->port); | |
805 | ||
806 | out: | |
807 | mutex_unlock(&mdev->state_lock); | |
808 | return err; | |
809 | } | |
810 | ||
811 | ||
812 | static int mlx4_en_close(struct net_device *dev) | |
813 | { | |
814 | struct mlx4_en_priv *priv = netdev_priv(dev); | |
815 | struct mlx4_en_dev *mdev = priv->mdev; | |
816 | ||
817 | if (netif_msg_ifdown(priv)) | |
818 | mlx4_info(mdev, "Close called for port:%d\n", priv->port); | |
819 | ||
820 | mutex_lock(&mdev->state_lock); | |
821 | ||
822 | mlx4_en_stop_port(dev); | |
823 | netif_carrier_off(dev); | |
824 | ||
825 | mutex_unlock(&mdev->state_lock); | |
826 | return 0; | |
827 | } | |
828 | ||
18cc42a3 | 829 | void mlx4_en_free_resources(struct mlx4_en_priv *priv) |
c27a02cd YP |
830 | { |
831 | int i; | |
832 | ||
833 | for (i = 0; i < priv->tx_ring_num; i++) { | |
834 | if (priv->tx_ring[i].tx_info) | |
835 | mlx4_en_destroy_tx_ring(priv, &priv->tx_ring[i]); | |
836 | if (priv->tx_cq[i].buf) | |
837 | mlx4_en_destroy_cq(priv, &priv->tx_cq[i]); | |
838 | } | |
839 | ||
840 | for (i = 0; i < priv->rx_ring_num; i++) { | |
841 | if (priv->rx_ring[i].rx_info) | |
842 | mlx4_en_destroy_rx_ring(priv, &priv->rx_ring[i]); | |
843 | if (priv->rx_cq[i].buf) | |
844 | mlx4_en_destroy_cq(priv, &priv->rx_cq[i]); | |
845 | } | |
846 | } | |
847 | ||
18cc42a3 | 848 | int mlx4_en_alloc_resources(struct mlx4_en_priv *priv) |
c27a02cd YP |
849 | { |
850 | struct mlx4_en_dev *mdev = priv->mdev; | |
851 | struct mlx4_en_port_profile *prof = priv->prof; | |
852 | int i; | |
853 | ||
854 | /* Create tx Rings */ | |
855 | for (i = 0; i < priv->tx_ring_num; i++) { | |
856 | if (mlx4_en_create_cq(priv, &priv->tx_cq[i], | |
857 | prof->tx_ring_size, i, TX)) | |
858 | goto err; | |
859 | ||
860 | if (mlx4_en_create_tx_ring(priv, &priv->tx_ring[i], | |
861 | prof->tx_ring_size, TXBB_SIZE)) | |
862 | goto err; | |
863 | } | |
864 | ||
865 | /* Create rx Rings */ | |
866 | for (i = 0; i < priv->rx_ring_num; i++) { | |
867 | if (mlx4_en_create_cq(priv, &priv->rx_cq[i], | |
868 | prof->rx_ring_size, i, RX)) | |
869 | goto err; | |
870 | ||
871 | if (mlx4_en_create_rx_ring(priv, &priv->rx_ring[i], | |
872 | prof->rx_ring_size, priv->stride)) | |
873 | goto err; | |
874 | } | |
875 | ||
876 | return 0; | |
877 | ||
878 | err: | |
879 | mlx4_err(mdev, "Failed to allocate NIC resources\n"); | |
880 | return -ENOMEM; | |
881 | } | |
882 | ||
883 | ||
884 | void mlx4_en_destroy_netdev(struct net_device *dev) | |
885 | { | |
886 | struct mlx4_en_priv *priv = netdev_priv(dev); | |
887 | struct mlx4_en_dev *mdev = priv->mdev; | |
888 | ||
889 | mlx4_dbg(DRV, priv, "Destroying netdev on port:%d\n", priv->port); | |
890 | ||
891 | /* Unregister device - this will close the port if it was up */ | |
892 | if (priv->registered) | |
893 | unregister_netdev(dev); | |
894 | ||
895 | if (priv->allocated) | |
896 | mlx4_free_hwq_res(mdev->dev, &priv->res, MLX4_EN_PAGE_SIZE); | |
897 | ||
898 | cancel_delayed_work(&priv->stats_task); | |
899 | cancel_delayed_work(&priv->refill_task); | |
900 | /* flush any pending task for this netdev */ | |
901 | flush_workqueue(mdev->workqueue); | |
902 | ||
903 | /* Detach the netdev so tasks would not attempt to access it */ | |
904 | mutex_lock(&mdev->state_lock); | |
905 | mdev->pndev[priv->port] = NULL; | |
906 | mutex_unlock(&mdev->state_lock); | |
907 | ||
908 | mlx4_en_free_resources(priv); | |
909 | free_netdev(dev); | |
910 | } | |
911 | ||
912 | static int mlx4_en_change_mtu(struct net_device *dev, int new_mtu) | |
913 | { | |
914 | struct mlx4_en_priv *priv = netdev_priv(dev); | |
915 | struct mlx4_en_dev *mdev = priv->mdev; | |
916 | int err = 0; | |
917 | ||
918 | mlx4_dbg(DRV, priv, "Change MTU called - current:%d new:%d\n", | |
919 | dev->mtu, new_mtu); | |
920 | ||
921 | if ((new_mtu < MLX4_EN_MIN_MTU) || (new_mtu > priv->max_mtu)) { | |
922 | mlx4_err(mdev, "Bad MTU size:%d.\n", new_mtu); | |
923 | return -EPERM; | |
924 | } | |
925 | dev->mtu = new_mtu; | |
926 | ||
927 | if (netif_running(dev)) { | |
928 | mutex_lock(&mdev->state_lock); | |
929 | if (!mdev->device_up) { | |
930 | /* NIC is probably restarting - let watchdog task reset | |
931 | * the port */ | |
932 | mlx4_dbg(DRV, priv, "Change MTU called with card down!?\n"); | |
933 | } else { | |
934 | mlx4_en_stop_port(dev); | |
935 | mlx4_en_set_default_moderation(priv); | |
936 | err = mlx4_en_start_port(dev); | |
937 | if (err) { | |
938 | mlx4_err(mdev, "Failed restarting port:%d\n", | |
939 | priv->port); | |
940 | queue_work(mdev->workqueue, &priv->watchdog_task); | |
941 | } | |
942 | } | |
943 | mutex_unlock(&mdev->state_lock); | |
944 | } | |
945 | return 0; | |
946 | } | |
947 | ||
3addc568 SH |
948 | static const struct net_device_ops mlx4_netdev_ops = { |
949 | .ndo_open = mlx4_en_open, | |
950 | .ndo_stop = mlx4_en_close, | |
951 | .ndo_start_xmit = mlx4_en_xmit, | |
952 | .ndo_get_stats = mlx4_en_get_stats, | |
953 | .ndo_set_multicast_list = mlx4_en_set_multicast, | |
954 | .ndo_set_mac_address = mlx4_en_set_mac, | |
52255bbe | 955 | .ndo_validate_addr = eth_validate_addr, |
3addc568 SH |
956 | .ndo_change_mtu = mlx4_en_change_mtu, |
957 | .ndo_tx_timeout = mlx4_en_tx_timeout, | |
958 | .ndo_vlan_rx_register = mlx4_en_vlan_rx_register, | |
959 | .ndo_vlan_rx_add_vid = mlx4_en_vlan_rx_add_vid, | |
960 | .ndo_vlan_rx_kill_vid = mlx4_en_vlan_rx_kill_vid, | |
961 | #ifdef CONFIG_NET_POLL_CONTROLLER | |
962 | .ndo_poll_controller = mlx4_en_netpoll, | |
963 | #endif | |
964 | }; | |
965 | ||
c27a02cd YP |
966 | int mlx4_en_init_netdev(struct mlx4_en_dev *mdev, int port, |
967 | struct mlx4_en_port_profile *prof) | |
968 | { | |
969 | struct net_device *dev; | |
970 | struct mlx4_en_priv *priv; | |
971 | int i; | |
972 | int err; | |
973 | ||
974 | dev = alloc_etherdev(sizeof(struct mlx4_en_priv)); | |
975 | if (dev == NULL) { | |
976 | mlx4_err(mdev, "Net device allocation failed\n"); | |
977 | return -ENOMEM; | |
978 | } | |
979 | ||
980 | SET_NETDEV_DEV(dev, &mdev->dev->pdev->dev); | |
981 | ||
982 | /* | |
983 | * Initialize driver private data | |
984 | */ | |
985 | ||
986 | priv = netdev_priv(dev); | |
987 | memset(priv, 0, sizeof(struct mlx4_en_priv)); | |
988 | priv->dev = dev; | |
989 | priv->mdev = mdev; | |
990 | priv->prof = prof; | |
991 | priv->port = port; | |
992 | priv->port_up = false; | |
993 | priv->rx_csum = 1; | |
994 | priv->flags = prof->flags; | |
995 | priv->tx_ring_num = prof->tx_ring_num; | |
996 | priv->rx_ring_num = prof->rx_ring_num; | |
997 | priv->mc_list = NULL; | |
998 | priv->mac_index = -1; | |
999 | priv->msg_enable = MLX4_EN_MSG_LEVEL; | |
1000 | spin_lock_init(&priv->stats_lock); | |
1001 | INIT_WORK(&priv->mcast_task, mlx4_en_do_set_multicast); | |
1002 | INIT_WORK(&priv->mac_task, mlx4_en_do_set_mac); | |
1003 | INIT_DELAYED_WORK(&priv->refill_task, mlx4_en_rx_refill); | |
1004 | INIT_WORK(&priv->watchdog_task, mlx4_en_restart); | |
1005 | INIT_WORK(&priv->linkstate_task, mlx4_en_linkstate); | |
1006 | INIT_DELAYED_WORK(&priv->stats_task, mlx4_en_do_get_stats); | |
1007 | ||
1008 | /* Query for default mac and max mtu */ | |
1009 | priv->max_mtu = mdev->dev->caps.eth_mtu_cap[priv->port]; | |
1010 | priv->mac = mdev->dev->caps.def_mac[priv->port]; | |
1011 | if (ILLEGAL_MAC(priv->mac)) { | |
1012 | mlx4_err(mdev, "Port: %d, invalid mac burned: 0x%llx, quiting\n", | |
1013 | priv->port, priv->mac); | |
1014 | err = -EINVAL; | |
1015 | goto out; | |
1016 | } | |
1017 | ||
1018 | priv->stride = roundup_pow_of_two(sizeof(struct mlx4_en_rx_desc) + | |
1019 | DS_SIZE * MLX4_EN_MAX_RX_FRAGS); | |
1020 | err = mlx4_en_alloc_resources(priv); | |
1021 | if (err) | |
1022 | goto out; | |
1023 | ||
1024 | /* Populate Rx default RSS mappings */ | |
1025 | mlx4_en_set_default_rss_map(priv, &priv->rss_map, priv->rx_ring_num * | |
1026 | RSS_FACTOR, priv->rx_ring_num); | |
1027 | /* Allocate page for receive rings */ | |
1028 | err = mlx4_alloc_hwq_res(mdev->dev, &priv->res, | |
1029 | MLX4_EN_PAGE_SIZE, MLX4_EN_PAGE_SIZE); | |
1030 | if (err) { | |
1031 | mlx4_err(mdev, "Failed to allocate page for rx qps\n"); | |
1032 | goto out; | |
1033 | } | |
1034 | priv->allocated = 1; | |
1035 | ||
1036 | /* Populate Tx priority mappings */ | |
1037 | mlx4_en_set_prio_map(priv, priv->tx_prio_map, prof->tx_ring_num); | |
1038 | ||
1039 | /* | |
1040 | * Initialize netdev entry points | |
1041 | */ | |
3addc568 | 1042 | dev->netdev_ops = &mlx4_netdev_ops; |
c27a02cd | 1043 | dev->watchdog_timeo = MLX4_EN_WATCHDOG_TIMEOUT; |
3addc568 | 1044 | |
c27a02cd YP |
1045 | SET_ETHTOOL_OPS(dev, &mlx4_en_ethtool_ops); |
1046 | ||
1047 | /* Set defualt MAC */ | |
1048 | dev->addr_len = ETH_ALEN; | |
1049 | for (i = 0; i < ETH_ALEN; i++) | |
1050 | dev->dev_addr[ETH_ALEN - 1 - i] = | |
1051 | (u8) (priv->mac >> (8 * i)); | |
1052 | ||
1053 | /* | |
1054 | * Set driver features | |
1055 | */ | |
1056 | dev->features |= NETIF_F_SG; | |
1057 | dev->features |= NETIF_F_HW_CSUM; | |
1058 | dev->features |= NETIF_F_HIGHDMA; | |
1059 | dev->features |= NETIF_F_HW_VLAN_TX | | |
1060 | NETIF_F_HW_VLAN_RX | | |
1061 | NETIF_F_HW_VLAN_FILTER; | |
1062 | if (mdev->profile.num_lro) | |
1063 | dev->features |= NETIF_F_LRO; | |
1064 | if (mdev->LSO_support) { | |
1065 | dev->features |= NETIF_F_TSO; | |
1066 | dev->features |= NETIF_F_TSO6; | |
1067 | } | |
1068 | ||
1069 | mdev->pndev[port] = dev; | |
1070 | ||
1071 | netif_carrier_off(dev); | |
1072 | err = register_netdev(dev); | |
1073 | if (err) { | |
1074 | mlx4_err(mdev, "Netdev registration failed\n"); | |
1075 | goto out; | |
1076 | } | |
1077 | priv->registered = 1; | |
1078 | queue_delayed_work(mdev->workqueue, &priv->stats_task, STATS_DELAY); | |
1079 | return 0; | |
1080 | ||
1081 | out: | |
1082 | mlx4_en_destroy_netdev(dev); | |
1083 | return err; | |
1084 | } | |
1085 |