]>
Commit | Line | Data |
---|---|---|
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 | ||
1e338db5 YP |
351 | priv->port_stats.tx_timeout++; |
352 | mlx4_dbg(DRV, priv, "Scheduling watchdog\n"); | |
353 | queue_work(mdev->workqueue, &priv->watchdog_task); | |
c27a02cd YP |
354 | } |
355 | ||
356 | ||
357 | static struct net_device_stats *mlx4_en_get_stats(struct net_device *dev) | |
358 | { | |
359 | struct mlx4_en_priv *priv = netdev_priv(dev); | |
360 | ||
361 | spin_lock_bh(&priv->stats_lock); | |
362 | memcpy(&priv->ret_stats, &priv->stats, sizeof(priv->stats)); | |
363 | spin_unlock_bh(&priv->stats_lock); | |
364 | ||
365 | return &priv->ret_stats; | |
366 | } | |
367 | ||
368 | static void mlx4_en_set_default_moderation(struct mlx4_en_priv *priv) | |
369 | { | |
c27a02cd YP |
370 | struct mlx4_en_cq *cq; |
371 | int i; | |
372 | ||
373 | /* If we haven't received a specific coalescing setting | |
374 | * (module param), we set the moderation paramters as follows: | |
375 | * - moder_cnt is set to the number of mtu sized packets to | |
376 | * satisfy our coelsing target. | |
377 | * - moder_time is set to a fixed value. | |
378 | */ | |
60b9f9e5 YP |
379 | priv->rx_frames = MLX4_EN_RX_COAL_TARGET / priv->dev->mtu + 1; |
380 | priv->rx_usecs = MLX4_EN_RX_COAL_TIME; | |
c27a02cd YP |
381 | mlx4_dbg(INTR, priv, "Default coalesing params for mtu:%d - " |
382 | "rx_frames:%d rx_usecs:%d\n", | |
383 | priv->dev->mtu, priv->rx_frames, priv->rx_usecs); | |
384 | ||
385 | /* Setup cq moderation params */ | |
386 | for (i = 0; i < priv->rx_ring_num; i++) { | |
387 | cq = &priv->rx_cq[i]; | |
388 | cq->moder_cnt = priv->rx_frames; | |
389 | cq->moder_time = priv->rx_usecs; | |
390 | } | |
391 | ||
392 | for (i = 0; i < priv->tx_ring_num; i++) { | |
393 | cq = &priv->tx_cq[i]; | |
394 | cq->moder_cnt = MLX4_EN_TX_COAL_PKTS; | |
395 | cq->moder_time = MLX4_EN_TX_COAL_TIME; | |
396 | } | |
397 | ||
398 | /* Reset auto-moderation params */ | |
399 | priv->pkt_rate_low = MLX4_EN_RX_RATE_LOW; | |
400 | priv->rx_usecs_low = MLX4_EN_RX_COAL_TIME_LOW; | |
401 | priv->pkt_rate_high = MLX4_EN_RX_RATE_HIGH; | |
402 | priv->rx_usecs_high = MLX4_EN_RX_COAL_TIME_HIGH; | |
403 | priv->sample_interval = MLX4_EN_SAMPLE_INTERVAL; | |
60b9f9e5 | 404 | priv->adaptive_rx_coal = 1; |
c27a02cd YP |
405 | priv->last_moder_time = MLX4_EN_AUTO_CONF; |
406 | priv->last_moder_jiffies = 0; | |
407 | priv->last_moder_packets = 0; | |
408 | priv->last_moder_tx_packets = 0; | |
409 | priv->last_moder_bytes = 0; | |
410 | } | |
411 | ||
412 | static void mlx4_en_auto_moderation(struct mlx4_en_priv *priv) | |
413 | { | |
414 | unsigned long period = (unsigned long) (jiffies - priv->last_moder_jiffies); | |
415 | struct mlx4_en_dev *mdev = priv->mdev; | |
416 | struct mlx4_en_cq *cq; | |
417 | unsigned long packets; | |
418 | unsigned long rate; | |
419 | unsigned long avg_pkt_size; | |
420 | unsigned long rx_packets; | |
421 | unsigned long rx_bytes; | |
422 | unsigned long tx_packets; | |
423 | unsigned long tx_pkt_diff; | |
424 | unsigned long rx_pkt_diff; | |
425 | int moder_time; | |
426 | int i, err; | |
427 | ||
428 | if (!priv->adaptive_rx_coal || period < priv->sample_interval * HZ) | |
429 | return; | |
430 | ||
431 | spin_lock_bh(&priv->stats_lock); | |
432 | rx_packets = priv->stats.rx_packets; | |
433 | rx_bytes = priv->stats.rx_bytes; | |
434 | tx_packets = priv->stats.tx_packets; | |
435 | spin_unlock_bh(&priv->stats_lock); | |
436 | ||
437 | if (!priv->last_moder_jiffies || !period) | |
438 | goto out; | |
439 | ||
440 | tx_pkt_diff = ((unsigned long) (tx_packets - | |
441 | priv->last_moder_tx_packets)); | |
442 | rx_pkt_diff = ((unsigned long) (rx_packets - | |
443 | priv->last_moder_packets)); | |
444 | packets = max(tx_pkt_diff, rx_pkt_diff); | |
445 | rate = packets * HZ / period; | |
446 | avg_pkt_size = packets ? ((unsigned long) (rx_bytes - | |
447 | priv->last_moder_bytes)) / packets : 0; | |
448 | ||
449 | /* Apply auto-moderation only when packet rate exceeds a rate that | |
450 | * it matters */ | |
451 | if (rate > MLX4_EN_RX_RATE_THRESH) { | |
452 | /* If tx and rx packet rates are not balanced, assume that | |
453 | * traffic is mainly BW bound and apply maximum moderation. | |
454 | * Otherwise, moderate according to packet rate */ | |
455 | if (2 * tx_pkt_diff > 3 * rx_pkt_diff || | |
456 | 2 * rx_pkt_diff > 3 * tx_pkt_diff) { | |
457 | moder_time = priv->rx_usecs_high; | |
458 | } else { | |
459 | if (rate < priv->pkt_rate_low) | |
460 | moder_time = priv->rx_usecs_low; | |
461 | else if (rate > priv->pkt_rate_high) | |
462 | moder_time = priv->rx_usecs_high; | |
463 | else | |
464 | moder_time = (rate - priv->pkt_rate_low) * | |
465 | (priv->rx_usecs_high - priv->rx_usecs_low) / | |
466 | (priv->pkt_rate_high - priv->pkt_rate_low) + | |
467 | priv->rx_usecs_low; | |
468 | } | |
469 | } else { | |
470 | /* When packet rate is low, use default moderation rather than | |
471 | * 0 to prevent interrupt storms if traffic suddenly increases */ | |
472 | moder_time = priv->rx_usecs; | |
473 | } | |
474 | ||
475 | mlx4_dbg(INTR, priv, "tx rate:%lu rx_rate:%lu\n", | |
476 | tx_pkt_diff * HZ / period, rx_pkt_diff * HZ / period); | |
477 | ||
478 | mlx4_dbg(INTR, priv, "Rx moder_time changed from:%d to %d period:%lu " | |
479 | "[jiff] packets:%lu avg_pkt_size:%lu rate:%lu [p/s])\n", | |
480 | priv->last_moder_time, moder_time, period, packets, | |
481 | avg_pkt_size, rate); | |
482 | ||
483 | if (moder_time != priv->last_moder_time) { | |
484 | priv->last_moder_time = moder_time; | |
485 | for (i = 0; i < priv->rx_ring_num; i++) { | |
486 | cq = &priv->rx_cq[i]; | |
487 | cq->moder_time = moder_time; | |
488 | err = mlx4_en_set_cq_moder(priv, cq); | |
489 | if (err) { | |
490 | mlx4_err(mdev, "Failed modifying moderation for cq:%d " | |
491 | "on port:%d\n", i, priv->port); | |
492 | break; | |
493 | } | |
494 | } | |
495 | } | |
496 | ||
497 | out: | |
498 | priv->last_moder_packets = rx_packets; | |
499 | priv->last_moder_tx_packets = tx_packets; | |
500 | priv->last_moder_bytes = rx_bytes; | |
501 | priv->last_moder_jiffies = jiffies; | |
502 | } | |
503 | ||
504 | static void mlx4_en_do_get_stats(struct work_struct *work) | |
505 | { | |
bf6aede7 | 506 | struct delayed_work *delay = to_delayed_work(work); |
c27a02cd YP |
507 | struct mlx4_en_priv *priv = container_of(delay, struct mlx4_en_priv, |
508 | stats_task); | |
509 | struct mlx4_en_dev *mdev = priv->mdev; | |
510 | int err; | |
511 | ||
512 | err = mlx4_en_DUMP_ETH_STATS(mdev, priv->port, 0); | |
513 | if (err) | |
514 | mlx4_dbg(HW, priv, "Could not update stats for " | |
515 | "port:%d\n", priv->port); | |
516 | ||
517 | mutex_lock(&mdev->state_lock); | |
518 | if (mdev->device_up) { | |
519 | if (priv->port_up) | |
520 | mlx4_en_auto_moderation(priv); | |
521 | ||
522 | queue_delayed_work(mdev->workqueue, &priv->stats_task, STATS_DELAY); | |
523 | } | |
524 | mutex_unlock(&mdev->state_lock); | |
525 | } | |
526 | ||
527 | static void mlx4_en_linkstate(struct work_struct *work) | |
528 | { | |
529 | struct mlx4_en_priv *priv = container_of(work, struct mlx4_en_priv, | |
530 | linkstate_task); | |
531 | struct mlx4_en_dev *mdev = priv->mdev; | |
532 | int linkstate = priv->link_state; | |
533 | ||
534 | mutex_lock(&mdev->state_lock); | |
535 | /* If observable port state changed set carrier state and | |
536 | * report to system log */ | |
537 | if (priv->last_link_state != linkstate) { | |
538 | if (linkstate == MLX4_DEV_EVENT_PORT_DOWN) { | |
539 | if (netif_msg_link(priv)) | |
540 | mlx4_info(mdev, "Port %d - link down\n", priv->port); | |
541 | netif_carrier_off(priv->dev); | |
542 | } else { | |
543 | if (netif_msg_link(priv)) | |
544 | mlx4_info(mdev, "Port %d - link up\n", priv->port); | |
545 | netif_carrier_on(priv->dev); | |
546 | } | |
547 | } | |
548 | priv->last_link_state = linkstate; | |
549 | mutex_unlock(&mdev->state_lock); | |
550 | } | |
551 | ||
552 | ||
18cc42a3 | 553 | int mlx4_en_start_port(struct net_device *dev) |
c27a02cd YP |
554 | { |
555 | struct mlx4_en_priv *priv = netdev_priv(dev); | |
556 | struct mlx4_en_dev *mdev = priv->mdev; | |
557 | struct mlx4_en_cq *cq; | |
558 | struct mlx4_en_tx_ring *tx_ring; | |
559 | struct mlx4_en_rx_ring *rx_ring; | |
560 | int rx_index = 0; | |
561 | int tx_index = 0; | |
562 | u16 stride; | |
563 | int err = 0; | |
564 | int i; | |
565 | int j; | |
566 | ||
567 | if (priv->port_up) { | |
568 | mlx4_dbg(DRV, priv, "start port called while port already up\n"); | |
569 | return 0; | |
570 | } | |
571 | ||
572 | /* Calculate Rx buf size */ | |
573 | dev->mtu = min(dev->mtu, priv->max_mtu); | |
574 | mlx4_en_calc_rx_buf(dev); | |
575 | mlx4_dbg(DRV, priv, "Rx buf size:%d\n", priv->rx_skb_size); | |
576 | stride = roundup_pow_of_two(sizeof(struct mlx4_en_rx_desc) + | |
577 | DS_SIZE * priv->num_frags); | |
578 | /* Configure rx cq's and rings */ | |
579 | for (i = 0; i < priv->rx_ring_num; i++) { | |
580 | cq = &priv->rx_cq[i]; | |
581 | rx_ring = &priv->rx_ring[i]; | |
582 | ||
583 | err = mlx4_en_activate_cq(priv, cq); | |
584 | if (err) { | |
585 | mlx4_err(mdev, "Failed activating Rx CQ\n"); | |
586 | goto rx_err; | |
587 | } | |
588 | for (j = 0; j < cq->size; j++) | |
589 | cq->buf[j].owner_sr_opcode = MLX4_CQE_OWNER_MASK; | |
590 | err = mlx4_en_set_cq_moder(priv, cq); | |
591 | if (err) { | |
592 | mlx4_err(mdev, "Failed setting cq moderation parameters"); | |
593 | mlx4_en_deactivate_cq(priv, cq); | |
594 | goto cq_err; | |
595 | } | |
596 | mlx4_en_arm_cq(priv, cq); | |
597 | ||
598 | ++rx_index; | |
599 | } | |
600 | ||
601 | err = mlx4_en_activate_rx_rings(priv); | |
602 | if (err) { | |
603 | mlx4_err(mdev, "Failed to activate RX rings\n"); | |
604 | goto cq_err; | |
605 | } | |
606 | ||
607 | err = mlx4_en_config_rss_steer(priv); | |
608 | if (err) { | |
609 | mlx4_err(mdev, "Failed configuring rss steering\n"); | |
610 | goto rx_err; | |
611 | } | |
612 | ||
613 | /* Configure tx cq's and rings */ | |
614 | for (i = 0; i < priv->tx_ring_num; i++) { | |
615 | /* Configure cq */ | |
616 | cq = &priv->tx_cq[i]; | |
617 | err = mlx4_en_activate_cq(priv, cq); | |
618 | if (err) { | |
619 | mlx4_err(mdev, "Failed allocating Tx CQ\n"); | |
620 | goto tx_err; | |
621 | } | |
622 | err = mlx4_en_set_cq_moder(priv, cq); | |
623 | if (err) { | |
624 | mlx4_err(mdev, "Failed setting cq moderation parameters"); | |
625 | mlx4_en_deactivate_cq(priv, cq); | |
626 | goto tx_err; | |
627 | } | |
628 | mlx4_dbg(DRV, priv, "Resetting index of collapsed CQ:%d to -1\n", i); | |
629 | cq->buf->wqe_index = cpu_to_be16(0xffff); | |
630 | ||
631 | /* Configure ring */ | |
632 | tx_ring = &priv->tx_ring[i]; | |
633 | err = mlx4_en_activate_tx_ring(priv, tx_ring, cq->mcq.cqn, | |
634 | priv->rx_ring[0].srq.srqn); | |
635 | if (err) { | |
636 | mlx4_err(mdev, "Failed allocating Tx ring\n"); | |
637 | mlx4_en_deactivate_cq(priv, cq); | |
638 | goto tx_err; | |
639 | } | |
640 | /* Set initial ownership of all Tx TXBBs to SW (1) */ | |
641 | for (j = 0; j < tx_ring->buf_size; j += STAMP_STRIDE) | |
642 | *((u32 *) (tx_ring->buf + j)) = 0xffffffff; | |
643 | ++tx_index; | |
644 | } | |
645 | ||
646 | /* Configure port */ | |
647 | err = mlx4_SET_PORT_general(mdev->dev, priv->port, | |
648 | priv->rx_skb_size + ETH_FCS_LEN, | |
d53b93f2 YP |
649 | priv->prof->tx_pause, |
650 | priv->prof->tx_ppp, | |
651 | priv->prof->rx_pause, | |
652 | priv->prof->rx_ppp); | |
c27a02cd YP |
653 | if (err) { |
654 | mlx4_err(mdev, "Failed setting port general configurations" | |
655 | " for port %d, with error %d\n", priv->port, err); | |
656 | goto tx_err; | |
657 | } | |
658 | /* Set default qp number */ | |
659 | err = mlx4_SET_PORT_qpn_calc(mdev->dev, priv->port, priv->base_qpn, 0); | |
660 | if (err) { | |
661 | mlx4_err(mdev, "Failed setting default qp numbers\n"); | |
662 | goto tx_err; | |
663 | } | |
664 | /* Set port mac number */ | |
665 | mlx4_dbg(DRV, priv, "Setting mac for port %d\n", priv->port); | |
666 | err = mlx4_register_mac(mdev->dev, priv->port, | |
667 | priv->mac, &priv->mac_index); | |
668 | if (err) { | |
669 | mlx4_err(mdev, "Failed setting port mac\n"); | |
670 | goto tx_err; | |
671 | } | |
672 | ||
673 | /* Init port */ | |
674 | mlx4_dbg(HW, priv, "Initializing port\n"); | |
675 | err = mlx4_INIT_PORT(mdev->dev, priv->port); | |
676 | if (err) { | |
677 | mlx4_err(mdev, "Failed Initializing port\n"); | |
678 | goto mac_err; | |
679 | } | |
680 | ||
681 | /* Schedule multicast task to populate multicast list */ | |
682 | queue_work(mdev->workqueue, &priv->mcast_task); | |
683 | ||
684 | priv->port_up = true; | |
685 | netif_start_queue(dev); | |
686 | return 0; | |
687 | ||
688 | mac_err: | |
689 | mlx4_unregister_mac(mdev->dev, priv->port, priv->mac_index); | |
690 | tx_err: | |
691 | while (tx_index--) { | |
692 | mlx4_en_deactivate_tx_ring(priv, &priv->tx_ring[tx_index]); | |
693 | mlx4_en_deactivate_cq(priv, &priv->tx_cq[tx_index]); | |
694 | } | |
695 | ||
696 | mlx4_en_release_rss_steer(priv); | |
697 | rx_err: | |
698 | for (i = 0; i < priv->rx_ring_num; i++) | |
c1adbb96 | 699 | mlx4_en_deactivate_rx_ring(priv, &priv->rx_ring[i]); |
c27a02cd YP |
700 | cq_err: |
701 | while (rx_index--) | |
702 | mlx4_en_deactivate_cq(priv, &priv->rx_cq[rx_index]); | |
703 | ||
704 | return err; /* need to close devices */ | |
705 | } | |
706 | ||
707 | ||
18cc42a3 | 708 | void mlx4_en_stop_port(struct net_device *dev) |
c27a02cd YP |
709 | { |
710 | struct mlx4_en_priv *priv = netdev_priv(dev); | |
711 | struct mlx4_en_dev *mdev = priv->mdev; | |
712 | int i; | |
713 | ||
714 | if (!priv->port_up) { | |
715 | mlx4_dbg(DRV, priv, "stop port (%d) called while port already down\n", | |
716 | priv->port); | |
717 | return; | |
718 | } | |
719 | netif_stop_queue(dev); | |
720 | ||
721 | /* Synchronize with tx routine */ | |
722 | netif_tx_lock_bh(dev); | |
723 | priv->port_up = false; | |
724 | netif_tx_unlock_bh(dev); | |
725 | ||
726 | /* close port*/ | |
727 | mlx4_CLOSE_PORT(mdev->dev, priv->port); | |
728 | ||
729 | /* Unregister Mac address for the port */ | |
730 | mlx4_unregister_mac(mdev->dev, priv->port, priv->mac_index); | |
731 | ||
732 | /* Free TX Rings */ | |
733 | for (i = 0; i < priv->tx_ring_num; i++) { | |
734 | mlx4_en_deactivate_tx_ring(priv, &priv->tx_ring[i]); | |
735 | mlx4_en_deactivate_cq(priv, &priv->tx_cq[i]); | |
736 | } | |
737 | msleep(10); | |
738 | ||
739 | for (i = 0; i < priv->tx_ring_num; i++) | |
740 | mlx4_en_free_tx_buf(dev, &priv->tx_ring[i]); | |
741 | ||
742 | /* Free RSS qps */ | |
743 | mlx4_en_release_rss_steer(priv); | |
744 | ||
745 | /* Free RX Rings */ | |
746 | for (i = 0; i < priv->rx_ring_num; i++) { | |
747 | mlx4_en_deactivate_rx_ring(priv, &priv->rx_ring[i]); | |
748 | while (test_bit(NAPI_STATE_SCHED, &priv->rx_cq[i].napi.state)) | |
749 | msleep(1); | |
750 | mlx4_en_deactivate_cq(priv, &priv->rx_cq[i]); | |
751 | } | |
752 | } | |
753 | ||
754 | static void mlx4_en_restart(struct work_struct *work) | |
755 | { | |
756 | struct mlx4_en_priv *priv = container_of(work, struct mlx4_en_priv, | |
757 | watchdog_task); | |
758 | struct mlx4_en_dev *mdev = priv->mdev; | |
759 | struct net_device *dev = priv->dev; | |
760 | ||
761 | mlx4_dbg(DRV, priv, "Watchdog task called for port %d\n", priv->port); | |
1e338db5 YP |
762 | |
763 | mutex_lock(&mdev->state_lock); | |
764 | if (priv->port_up) { | |
765 | mlx4_en_stop_port(dev); | |
766 | if (mlx4_en_start_port(dev)) | |
767 | mlx4_err(mdev, "Failed restarting port %d\n", priv->port); | |
768 | } | |
769 | mutex_unlock(&mdev->state_lock); | |
c27a02cd YP |
770 | } |
771 | ||
772 | ||
773 | static int mlx4_en_open(struct net_device *dev) | |
774 | { | |
775 | struct mlx4_en_priv *priv = netdev_priv(dev); | |
776 | struct mlx4_en_dev *mdev = priv->mdev; | |
777 | int i; | |
778 | int err = 0; | |
779 | ||
780 | mutex_lock(&mdev->state_lock); | |
781 | ||
782 | if (!mdev->device_up) { | |
783 | mlx4_err(mdev, "Cannot open - device down/disabled\n"); | |
784 | err = -EBUSY; | |
785 | goto out; | |
786 | } | |
787 | ||
788 | /* Reset HW statistics and performance counters */ | |
789 | if (mlx4_en_DUMP_ETH_STATS(mdev, priv->port, 1)) | |
790 | mlx4_dbg(HW, priv, "Failed dumping statistics\n"); | |
791 | ||
792 | memset(&priv->stats, 0, sizeof(priv->stats)); | |
793 | memset(&priv->pstats, 0, sizeof(priv->pstats)); | |
794 | ||
795 | for (i = 0; i < priv->tx_ring_num; i++) { | |
796 | priv->tx_ring[i].bytes = 0; | |
797 | priv->tx_ring[i].packets = 0; | |
798 | } | |
799 | for (i = 0; i < priv->rx_ring_num; i++) { | |
800 | priv->rx_ring[i].bytes = 0; | |
801 | priv->rx_ring[i].packets = 0; | |
802 | } | |
803 | ||
804 | mlx4_en_set_default_moderation(priv); | |
805 | err = mlx4_en_start_port(dev); | |
806 | if (err) | |
807 | mlx4_err(mdev, "Failed starting port:%d\n", priv->port); | |
808 | ||
809 | out: | |
810 | mutex_unlock(&mdev->state_lock); | |
811 | return err; | |
812 | } | |
813 | ||
814 | ||
815 | static int mlx4_en_close(struct net_device *dev) | |
816 | { | |
817 | struct mlx4_en_priv *priv = netdev_priv(dev); | |
818 | struct mlx4_en_dev *mdev = priv->mdev; | |
819 | ||
820 | if (netif_msg_ifdown(priv)) | |
821 | mlx4_info(mdev, "Close called for port:%d\n", priv->port); | |
822 | ||
823 | mutex_lock(&mdev->state_lock); | |
824 | ||
825 | mlx4_en_stop_port(dev); | |
826 | netif_carrier_off(dev); | |
827 | ||
828 | mutex_unlock(&mdev->state_lock); | |
829 | return 0; | |
830 | } | |
831 | ||
18cc42a3 | 832 | void mlx4_en_free_resources(struct mlx4_en_priv *priv) |
c27a02cd YP |
833 | { |
834 | int i; | |
835 | ||
836 | for (i = 0; i < priv->tx_ring_num; i++) { | |
837 | if (priv->tx_ring[i].tx_info) | |
838 | mlx4_en_destroy_tx_ring(priv, &priv->tx_ring[i]); | |
839 | if (priv->tx_cq[i].buf) | |
840 | mlx4_en_destroy_cq(priv, &priv->tx_cq[i]); | |
841 | } | |
842 | ||
843 | for (i = 0; i < priv->rx_ring_num; i++) { | |
844 | if (priv->rx_ring[i].rx_info) | |
845 | mlx4_en_destroy_rx_ring(priv, &priv->rx_ring[i]); | |
846 | if (priv->rx_cq[i].buf) | |
847 | mlx4_en_destroy_cq(priv, &priv->rx_cq[i]); | |
848 | } | |
849 | } | |
850 | ||
18cc42a3 | 851 | int mlx4_en_alloc_resources(struct mlx4_en_priv *priv) |
c27a02cd YP |
852 | { |
853 | struct mlx4_en_dev *mdev = priv->mdev; | |
854 | struct mlx4_en_port_profile *prof = priv->prof; | |
855 | int i; | |
856 | ||
857 | /* Create tx Rings */ | |
858 | for (i = 0; i < priv->tx_ring_num; i++) { | |
859 | if (mlx4_en_create_cq(priv, &priv->tx_cq[i], | |
860 | prof->tx_ring_size, i, TX)) | |
861 | goto err; | |
862 | ||
863 | if (mlx4_en_create_tx_ring(priv, &priv->tx_ring[i], | |
864 | prof->tx_ring_size, TXBB_SIZE)) | |
865 | goto err; | |
866 | } | |
867 | ||
868 | /* Create rx Rings */ | |
869 | for (i = 0; i < priv->rx_ring_num; i++) { | |
870 | if (mlx4_en_create_cq(priv, &priv->rx_cq[i], | |
871 | prof->rx_ring_size, i, RX)) | |
872 | goto err; | |
873 | ||
874 | if (mlx4_en_create_rx_ring(priv, &priv->rx_ring[i], | |
875 | prof->rx_ring_size, priv->stride)) | |
876 | goto err; | |
877 | } | |
878 | ||
879 | return 0; | |
880 | ||
881 | err: | |
882 | mlx4_err(mdev, "Failed to allocate NIC resources\n"); | |
883 | return -ENOMEM; | |
884 | } | |
885 | ||
886 | ||
887 | void mlx4_en_destroy_netdev(struct net_device *dev) | |
888 | { | |
889 | struct mlx4_en_priv *priv = netdev_priv(dev); | |
890 | struct mlx4_en_dev *mdev = priv->mdev; | |
891 | ||
892 | mlx4_dbg(DRV, priv, "Destroying netdev on port:%d\n", priv->port); | |
893 | ||
894 | /* Unregister device - this will close the port if it was up */ | |
895 | if (priv->registered) | |
896 | unregister_netdev(dev); | |
897 | ||
898 | if (priv->allocated) | |
899 | mlx4_free_hwq_res(mdev->dev, &priv->res, MLX4_EN_PAGE_SIZE); | |
900 | ||
901 | cancel_delayed_work(&priv->stats_task); | |
902 | cancel_delayed_work(&priv->refill_task); | |
903 | /* flush any pending task for this netdev */ | |
904 | flush_workqueue(mdev->workqueue); | |
905 | ||
906 | /* Detach the netdev so tasks would not attempt to access it */ | |
907 | mutex_lock(&mdev->state_lock); | |
908 | mdev->pndev[priv->port] = NULL; | |
909 | mutex_unlock(&mdev->state_lock); | |
910 | ||
911 | mlx4_en_free_resources(priv); | |
912 | free_netdev(dev); | |
913 | } | |
914 | ||
915 | static int mlx4_en_change_mtu(struct net_device *dev, int new_mtu) | |
916 | { | |
917 | struct mlx4_en_priv *priv = netdev_priv(dev); | |
918 | struct mlx4_en_dev *mdev = priv->mdev; | |
919 | int err = 0; | |
920 | ||
921 | mlx4_dbg(DRV, priv, "Change MTU called - current:%d new:%d\n", | |
922 | dev->mtu, new_mtu); | |
923 | ||
924 | if ((new_mtu < MLX4_EN_MIN_MTU) || (new_mtu > priv->max_mtu)) { | |
925 | mlx4_err(mdev, "Bad MTU size:%d.\n", new_mtu); | |
926 | return -EPERM; | |
927 | } | |
928 | dev->mtu = new_mtu; | |
929 | ||
930 | if (netif_running(dev)) { | |
931 | mutex_lock(&mdev->state_lock); | |
932 | if (!mdev->device_up) { | |
933 | /* NIC is probably restarting - let watchdog task reset | |
934 | * the port */ | |
935 | mlx4_dbg(DRV, priv, "Change MTU called with card down!?\n"); | |
936 | } else { | |
937 | mlx4_en_stop_port(dev); | |
938 | mlx4_en_set_default_moderation(priv); | |
939 | err = mlx4_en_start_port(dev); | |
940 | if (err) { | |
941 | mlx4_err(mdev, "Failed restarting port:%d\n", | |
942 | priv->port); | |
943 | queue_work(mdev->workqueue, &priv->watchdog_task); | |
944 | } | |
945 | } | |
946 | mutex_unlock(&mdev->state_lock); | |
947 | } | |
948 | return 0; | |
949 | } | |
950 | ||
3addc568 SH |
951 | static const struct net_device_ops mlx4_netdev_ops = { |
952 | .ndo_open = mlx4_en_open, | |
953 | .ndo_stop = mlx4_en_close, | |
954 | .ndo_start_xmit = mlx4_en_xmit, | |
955 | .ndo_get_stats = mlx4_en_get_stats, | |
956 | .ndo_set_multicast_list = mlx4_en_set_multicast, | |
957 | .ndo_set_mac_address = mlx4_en_set_mac, | |
52255bbe | 958 | .ndo_validate_addr = eth_validate_addr, |
3addc568 SH |
959 | .ndo_change_mtu = mlx4_en_change_mtu, |
960 | .ndo_tx_timeout = mlx4_en_tx_timeout, | |
961 | .ndo_vlan_rx_register = mlx4_en_vlan_rx_register, | |
962 | .ndo_vlan_rx_add_vid = mlx4_en_vlan_rx_add_vid, | |
963 | .ndo_vlan_rx_kill_vid = mlx4_en_vlan_rx_kill_vid, | |
964 | #ifdef CONFIG_NET_POLL_CONTROLLER | |
965 | .ndo_poll_controller = mlx4_en_netpoll, | |
966 | #endif | |
967 | }; | |
968 | ||
c27a02cd YP |
969 | int mlx4_en_init_netdev(struct mlx4_en_dev *mdev, int port, |
970 | struct mlx4_en_port_profile *prof) | |
971 | { | |
972 | struct net_device *dev; | |
973 | struct mlx4_en_priv *priv; | |
974 | int i; | |
975 | int err; | |
976 | ||
977 | dev = alloc_etherdev(sizeof(struct mlx4_en_priv)); | |
978 | if (dev == NULL) { | |
979 | mlx4_err(mdev, "Net device allocation failed\n"); | |
980 | return -ENOMEM; | |
981 | } | |
982 | ||
983 | SET_NETDEV_DEV(dev, &mdev->dev->pdev->dev); | |
984 | ||
985 | /* | |
986 | * Initialize driver private data | |
987 | */ | |
988 | ||
989 | priv = netdev_priv(dev); | |
990 | memset(priv, 0, sizeof(struct mlx4_en_priv)); | |
991 | priv->dev = dev; | |
992 | priv->mdev = mdev; | |
993 | priv->prof = prof; | |
994 | priv->port = port; | |
995 | priv->port_up = false; | |
996 | priv->rx_csum = 1; | |
997 | priv->flags = prof->flags; | |
998 | priv->tx_ring_num = prof->tx_ring_num; | |
999 | priv->rx_ring_num = prof->rx_ring_num; | |
1000 | priv->mc_list = NULL; | |
1001 | priv->mac_index = -1; | |
1002 | priv->msg_enable = MLX4_EN_MSG_LEVEL; | |
1003 | spin_lock_init(&priv->stats_lock); | |
1004 | INIT_WORK(&priv->mcast_task, mlx4_en_do_set_multicast); | |
1005 | INIT_WORK(&priv->mac_task, mlx4_en_do_set_mac); | |
1006 | INIT_DELAYED_WORK(&priv->refill_task, mlx4_en_rx_refill); | |
1007 | INIT_WORK(&priv->watchdog_task, mlx4_en_restart); | |
1008 | INIT_WORK(&priv->linkstate_task, mlx4_en_linkstate); | |
1009 | INIT_DELAYED_WORK(&priv->stats_task, mlx4_en_do_get_stats); | |
1010 | ||
1011 | /* Query for default mac and max mtu */ | |
1012 | priv->max_mtu = mdev->dev->caps.eth_mtu_cap[priv->port]; | |
1013 | priv->mac = mdev->dev->caps.def_mac[priv->port]; | |
1014 | if (ILLEGAL_MAC(priv->mac)) { | |
1015 | mlx4_err(mdev, "Port: %d, invalid mac burned: 0x%llx, quiting\n", | |
1016 | priv->port, priv->mac); | |
1017 | err = -EINVAL; | |
1018 | goto out; | |
1019 | } | |
1020 | ||
1021 | priv->stride = roundup_pow_of_two(sizeof(struct mlx4_en_rx_desc) + | |
1022 | DS_SIZE * MLX4_EN_MAX_RX_FRAGS); | |
1023 | err = mlx4_en_alloc_resources(priv); | |
1024 | if (err) | |
1025 | goto out; | |
1026 | ||
1027 | /* Populate Rx default RSS mappings */ | |
1028 | mlx4_en_set_default_rss_map(priv, &priv->rss_map, priv->rx_ring_num * | |
1029 | RSS_FACTOR, priv->rx_ring_num); | |
1030 | /* Allocate page for receive rings */ | |
1031 | err = mlx4_alloc_hwq_res(mdev->dev, &priv->res, | |
1032 | MLX4_EN_PAGE_SIZE, MLX4_EN_PAGE_SIZE); | |
1033 | if (err) { | |
1034 | mlx4_err(mdev, "Failed to allocate page for rx qps\n"); | |
1035 | goto out; | |
1036 | } | |
1037 | priv->allocated = 1; | |
1038 | ||
1039 | /* Populate Tx priority mappings */ | |
1040 | mlx4_en_set_prio_map(priv, priv->tx_prio_map, prof->tx_ring_num); | |
1041 | ||
1042 | /* | |
1043 | * Initialize netdev entry points | |
1044 | */ | |
3addc568 | 1045 | dev->netdev_ops = &mlx4_netdev_ops; |
c27a02cd | 1046 | dev->watchdog_timeo = MLX4_EN_WATCHDOG_TIMEOUT; |
3addc568 | 1047 | |
c27a02cd YP |
1048 | SET_ETHTOOL_OPS(dev, &mlx4_en_ethtool_ops); |
1049 | ||
1050 | /* Set defualt MAC */ | |
1051 | dev->addr_len = ETH_ALEN; | |
1052 | for (i = 0; i < ETH_ALEN; i++) | |
1053 | dev->dev_addr[ETH_ALEN - 1 - i] = | |
1054 | (u8) (priv->mac >> (8 * i)); | |
1055 | ||
1056 | /* | |
1057 | * Set driver features | |
1058 | */ | |
1059 | dev->features |= NETIF_F_SG; | |
45b4d66d | 1060 | dev->features |= NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM; |
c27a02cd YP |
1061 | dev->features |= NETIF_F_HIGHDMA; |
1062 | dev->features |= NETIF_F_HW_VLAN_TX | | |
1063 | NETIF_F_HW_VLAN_RX | | |
1064 | NETIF_F_HW_VLAN_FILTER; | |
1065 | if (mdev->profile.num_lro) | |
1066 | dev->features |= NETIF_F_LRO; | |
1067 | if (mdev->LSO_support) { | |
1068 | dev->features |= NETIF_F_TSO; | |
1069 | dev->features |= NETIF_F_TSO6; | |
1070 | } | |
1071 | ||
1072 | mdev->pndev[port] = dev; | |
1073 | ||
1074 | netif_carrier_off(dev); | |
1075 | err = register_netdev(dev); | |
1076 | if (err) { | |
1077 | mlx4_err(mdev, "Netdev registration failed\n"); | |
1078 | goto out; | |
1079 | } | |
1080 | priv->registered = 1; | |
1081 | queue_delayed_work(mdev->workqueue, &priv->stats_task, STATS_DELAY); | |
1082 | return 0; | |
1083 | ||
1084 | out: | |
1085 | mlx4_en_destroy_netdev(dev); | |
1086 | return err; | |
1087 | } | |
1088 |