]> bbs.cooldavid.org Git - net-next-2.6.git/blame - drivers/net/vxge/vxge-main.c
git://bbs.cooldavid.org / net-next-2.6.git / blame
? search:
summary | shortlog | log | commit | commitdiff | tree
blob | blame (incremental) | history | HEAD
vxge: Removed the code to bounds check the mss value
[net-next-2.6.git] / drivers / net / vxge / vxge-main.c
CommitLineData
703da5a1
RV		 1/******************************************************************************
2* This software may be used and distributed according to the terms of
3* the GNU General Public License (GPL), incorporated herein by reference.
4* Drivers based on or derived from this code fall under the GPL and must
5* retain the authorship, copyright and license notice. This file is not
6* a complete program and may only be used when the entire operating
7* system is licensed under the GPL.
8* See the file COPYING in this distribution for more information.
9*
10* vxge-main.c: Driver for Neterion Inc's X3100 Series 10GbE PCIe I/O
11* Virtualized Server Adapter.
12* Copyright(c) 2002-2009 Neterion Inc.
13*
14* The module loadable parameters that are supported by the driver and a brief
15* explanation of all the variables:
16* vlan_tag_strip:
17* Strip VLAN Tag enable/disable. Instructs the device to remove
18* the VLAN tag from all received tagged frames that are not
19* replicated at the internal L2 switch.
20* 0 - Do not strip the VLAN tag.
21* 1 - Strip the VLAN tag.
22*
23* addr_learn_en:
24* Enable learning the mac address of the guest OS interface in
25* a virtualization environment.
26* 0 - DISABLE
27* 1 - ENABLE
28*
29* max_config_port:
30* Maximum number of port to be supported.
31* MIN -1 and MAX - 2
32*
33* max_config_vpath:
34* This configures the maximum no of VPATH configures for each
35* device function.
36* MIN - 1 and MAX - 17
37*
38* max_config_dev:
39* This configures maximum no of Device function to be enabled.
40* MIN - 1 and MAX - 17
41*
42******************************************************************************/
43
44#include <linux/if_vlan.h>
45#include <linux/pci.h>
2b05e002 46#include <linux/tcp.h>
703da5a1
RV		 47#include <net/ip.h>
48#include <linux/netdevice.h>
49#include <linux/etherdevice.h>
50#include "vxge-main.h"
51#include "vxge-reg.h"
52
53MODULE_LICENSE("Dual BSD/GPL");
54MODULE_DESCRIPTION("Neterion's X3100 Series 10GbE PCIe I/O"
55 "Virtualized Server Adapter");
56
57static struct pci_device_id vxge_id_table[] __devinitdata = {
58 {PCI_VENDOR_ID_S2IO, PCI_DEVICE_ID_TITAN_WIN, PCI_ANY_ID,
59 PCI_ANY_ID},
60 {PCI_VENDOR_ID_S2IO, PCI_DEVICE_ID_TITAN_UNI, PCI_ANY_ID,
61 PCI_ANY_ID},
62 {0}
63};
64
65MODULE_DEVICE_TABLE(pci, vxge_id_table);
66
67VXGE_MODULE_PARAM_INT(vlan_tag_strip, VXGE_HW_VPATH_RPA_STRIP_VLAN_TAG_ENABLE);
68VXGE_MODULE_PARAM_INT(addr_learn_en, VXGE_HW_MAC_ADDR_LEARN_DEFAULT);
69VXGE_MODULE_PARAM_INT(max_config_port, VXGE_MAX_CONFIG_PORT);
70VXGE_MODULE_PARAM_INT(max_config_vpath, VXGE_USE_DEFAULT);
71VXGE_MODULE_PARAM_INT(max_mac_vpath, VXGE_MAX_MAC_ADDR_COUNT);
72VXGE_MODULE_PARAM_INT(max_config_dev, VXGE_MAX_CONFIG_DEV);
73
74static u16 vpath_selector[VXGE_HW_MAX_VIRTUAL_PATHS] =
75 {0, 1, 3, 3, 7, 7, 7, 7, 15, 15, 15, 15, 15, 15, 15, 15, 31};
76static unsigned int bw_percentage[VXGE_HW_MAX_VIRTUAL_PATHS] =
77 {[0 ...(VXGE_HW_MAX_VIRTUAL_PATHS - 1)] = 0xFF};
78module_param_array(bw_percentage, uint, NULL, 0);
79
80static struct vxge_drv_config *driver_config;
81
82static inline int is_vxge_card_up(struct vxgedev *vdev)
83{
84 return test_bit(__VXGE_STATE_CARD_UP, &vdev->state);
85}
86
87static inline void VXGE_COMPLETE_VPATH_TX(struct vxge_fifo *fifo)
88{
89 unsigned long flags = 0;
90 struct sk_buff *skb_ptr = NULL;
91 struct sk_buff **temp, *head, *skb;
92
93 if (spin_trylock_irqsave(&fifo->tx_lock, flags)) {
94 vxge_hw_vpath_poll_tx(fifo->handle, (void **)&skb_ptr);
95 spin_unlock_irqrestore(&fifo->tx_lock, flags);
96 }
97 /* free SKBs */
98 head = skb_ptr;
99 while (head) {
100 skb = head;
101 temp = (struct sk_buff **)&skb->cb;
102 head = *temp;
103 *temp = NULL;
104 dev_kfree_skb_irq(skb);
105 }
106}
107
108static inline void VXGE_COMPLETE_ALL_TX(struct vxgedev *vdev)
109{
110 int i;
111
112 /* Complete all transmits */
113 for (i = 0; i < vdev->no_of_vpath; i++)
114 VXGE_COMPLETE_VPATH_TX(&vdev->vpaths[i].fifo);
115}
116
117static inline void VXGE_COMPLETE_ALL_RX(struct vxgedev *vdev)
118{
119 int i;
120 struct vxge_ring *ring;
121
122 /* Complete all receives*/
123 for (i = 0; i < vdev->no_of_vpath; i++) {
124 ring = &vdev->vpaths[i].ring;
125 vxge_hw_vpath_poll_rx(ring->handle);
126 }
127}
128
129/*
130 * MultiQ manipulation helper functions
131 */
132void vxge_stop_all_tx_queue(struct vxgedev *vdev)
133{
134 int i;
135 struct net_device *dev = vdev->ndev;
136
137 if (vdev->config.tx_steering_type != TX_MULTIQ_STEERING) {
138 for (i = 0; i < vdev->no_of_vpath; i++)
139 vdev->vpaths[i].fifo.queue_state = VPATH_QUEUE_STOP;
140 }
141 netif_tx_stop_all_queues(dev);
142}
143
144void vxge_stop_tx_queue(struct vxge_fifo *fifo)
145{
146 struct net_device *dev = fifo->ndev;
147
148 struct netdev_queue *txq = NULL;
149 if (fifo->tx_steering_type == TX_MULTIQ_STEERING)
150 txq = netdev_get_tx_queue(dev, fifo->driver_id);
151 else {
152 txq = netdev_get_tx_queue(dev, 0);
153 fifo->queue_state = VPATH_QUEUE_STOP;
154 }
155
156 netif_tx_stop_queue(txq);
157}
158
159void vxge_start_all_tx_queue(struct vxgedev *vdev)
160{
161 int i;
162 struct net_device *dev = vdev->ndev;
163
164 if (vdev->config.tx_steering_type != TX_MULTIQ_STEERING) {
165 for (i = 0; i < vdev->no_of_vpath; i++)
166 vdev->vpaths[i].fifo.queue_state = VPATH_QUEUE_START;
167 }
168 netif_tx_start_all_queues(dev);
169}
170
171static void vxge_wake_all_tx_queue(struct vxgedev *vdev)
172{
173 int i;
174 struct net_device *dev = vdev->ndev;
175
176 if (vdev->config.tx_steering_type != TX_MULTIQ_STEERING) {
177 for (i = 0; i < vdev->no_of_vpath; i++)
178 vdev->vpaths[i].fifo.queue_state = VPATH_QUEUE_START;
179 }
180 netif_tx_wake_all_queues(dev);
181}
182
183void vxge_wake_tx_queue(struct vxge_fifo *fifo, struct sk_buff *skb)
184{
185 struct net_device *dev = fifo->ndev;
186
187 int vpath_no = fifo->driver_id;
188 struct netdev_queue *txq = NULL;
189 if (fifo->tx_steering_type == TX_MULTIQ_STEERING) {
190 txq = netdev_get_tx_queue(dev, vpath_no);
191 if (netif_tx_queue_stopped(txq))
192 netif_tx_wake_queue(txq);
193 } else {
194 txq = netdev_get_tx_queue(dev, 0);
195 if (fifo->queue_state == VPATH_QUEUE_STOP)
196 if (netif_tx_queue_stopped(txq)) {
197 fifo->queue_state = VPATH_QUEUE_START;
198 netif_tx_wake_queue(txq);
199 }
200 }
201}
202
203/*
204 * vxge_callback_link_up
205 *
206 * This function is called during interrupt context to notify link up state
207 * change.
208 */
209void
210vxge_callback_link_up(struct __vxge_hw_device *hldev)
211{
212 struct net_device *dev = hldev->ndev;
213 struct vxgedev *vdev = (struct vxgedev *)netdev_priv(dev);
214
215 vxge_debug_entryexit(VXGE_TRACE, "%s: %s:%d",
216 vdev->ndev->name, __func__, __LINE__);
217 printk(KERN_NOTICE "%s: Link Up\n", vdev->ndev->name);
218 vdev->stats.link_up++;
219
220 netif_carrier_on(vdev->ndev);
221 vxge_wake_all_tx_queue(vdev);
222
223 vxge_debug_entryexit(VXGE_TRACE,
224 "%s: %s:%d Exiting...", vdev->ndev->name, __func__, __LINE__);
225}
226
227/*
228 * vxge_callback_link_down
229 *
230 * This function is called during interrupt context to notify link down state
231 * change.
232 */
233void
234vxge_callback_link_down(struct __vxge_hw_device *hldev)
235{
236 struct net_device *dev = hldev->ndev;
237 struct vxgedev *vdev = (struct vxgedev *)netdev_priv(dev);
238
239 vxge_debug_entryexit(VXGE_TRACE,
240 "%s: %s:%d", vdev->ndev->name, __func__, __LINE__);
241 printk(KERN_NOTICE "%s: Link Down\n", vdev->ndev->name);
242
243 vdev->stats.link_down++;
244 netif_carrier_off(vdev->ndev);
245 vxge_stop_all_tx_queue(vdev);
246
247 vxge_debug_entryexit(VXGE_TRACE,
248 "%s: %s:%d Exiting...", vdev->ndev->name, __func__, __LINE__);
249}
250
251/*
252 * vxge_rx_alloc
253 *
254 * Allocate SKB.
255 */
256static struct sk_buff*
257vxge_rx_alloc(void *dtrh, struct vxge_ring *ring, const int skb_size)
258{
259 struct net_device *dev;
260 struct sk_buff *skb;
261 struct vxge_rx_priv *rx_priv;
262
263 dev = ring->ndev;
264 vxge_debug_entryexit(VXGE_TRACE, "%s: %s:%d",
265 ring->ndev->name, __func__, __LINE__);
266
267 rx_priv = vxge_hw_ring_rxd_private_get(dtrh);
268
269 /* try to allocate skb first. this one may fail */
270 skb = netdev_alloc_skb(dev, skb_size +
271 VXGE_HW_HEADER_ETHERNET_II_802_3_ALIGN);
272 if (skb == NULL) {
273 vxge_debug_mem(VXGE_ERR,
274 "%s: out of memory to allocate SKB", dev->name);
275 ring->stats.skb_alloc_fail++;
276 return NULL;
277 }
278
279 vxge_debug_mem(VXGE_TRACE,
280 "%s: %s:%d Skb : 0x%p", ring->ndev->name,
281 __func__, __LINE__, skb);
282
283 skb_reserve(skb, VXGE_HW_HEADER_ETHERNET_II_802_3_ALIGN);
284
285 rx_priv->skb = skb;
286 rx_priv->data_size = skb_size;
287 vxge_debug_entryexit(VXGE_TRACE,
288 "%s: %s:%d Exiting...", ring->ndev->name, __func__, __LINE__);
289
290 return skb;
291}
292
293/*
294 * vxge_rx_map
295 */
296static int vxge_rx_map(void *dtrh, struct vxge_ring *ring)
297{
298 struct vxge_rx_priv *rx_priv;
299 dma_addr_t dma_addr;
300
301 vxge_debug_entryexit(VXGE_TRACE, "%s: %s:%d",
302 ring->ndev->name, __func__, __LINE__);
303 rx_priv = vxge_hw_ring_rxd_private_get(dtrh);
304
305 dma_addr = pci_map_single(ring->pdev, rx_priv->skb->data,
306 rx_priv->data_size, PCI_DMA_FROMDEVICE);
307
308 if (dma_addr == 0) {
309 ring->stats.pci_map_fail++;
310 return -EIO;
311 }
312 vxge_debug_mem(VXGE_TRACE,
313 "%s: %s:%d 1 buffer mode dma_addr = 0x%llx",
314 ring->ndev->name, __func__, __LINE__,
315 (unsigned long long)dma_addr);
316 vxge_hw_ring_rxd_1b_set(dtrh, dma_addr, rx_priv->data_size);
317
318 rx_priv->data_dma = dma_addr;
319 vxge_debug_entryexit(VXGE_TRACE,
320 "%s: %s:%d Exiting...", ring->ndev->name, __func__, __LINE__);
321
322 return 0;
323}
324
325/*
326 * vxge_rx_initial_replenish
327 * Allocation of RxD as an initial replenish procedure.
328 */
329static enum vxge_hw_status
330vxge_rx_initial_replenish(void *dtrh, void *userdata)
331{
332 struct vxge_ring *ring = (struct vxge_ring *)userdata;
333 struct vxge_rx_priv *rx_priv;
334
335 vxge_debug_entryexit(VXGE_TRACE, "%s: %s:%d",
336 ring->ndev->name, __func__, __LINE__);
337 if (vxge_rx_alloc(dtrh, ring,
338 VXGE_LL_MAX_FRAME_SIZE(ring->ndev)) == NULL)
339 return VXGE_HW_FAIL;
340
341 if (vxge_rx_map(dtrh, ring)) {
342 rx_priv = vxge_hw_ring_rxd_private_get(dtrh);
343 dev_kfree_skb(rx_priv->skb);
344
345 return VXGE_HW_FAIL;
346 }
347 vxge_debug_entryexit(VXGE_TRACE,
348 "%s: %s:%d Exiting...", ring->ndev->name, __func__, __LINE__);
349
350 return VXGE_HW_OK;
351}
352
353static inline void
354vxge_rx_complete(struct vxge_ring *ring, struct sk_buff *skb, u16 vlan,
355 int pkt_length, struct vxge_hw_ring_rxd_info *ext_info)
356{
357
358 vxge_debug_entryexit(VXGE_TRACE, "%s: %s:%d",
359 ring->ndev->name, __func__, __LINE__);
360 skb_record_rx_queue(skb, ring->driver_id);
361 skb->protocol = eth_type_trans(skb, ring->ndev);
362
363 ring->stats.rx_frms++;
364 ring->stats.rx_bytes += pkt_length;
365
366 if (skb->pkt_type == PACKET_MULTICAST)
367 ring->stats.rx_mcast++;
368
369 vxge_debug_rx(VXGE_TRACE,
370 "%s: %s:%d skb protocol = %d",
371 ring->ndev->name, __func__, __LINE__, skb->protocol);
372
373 if (ring->gro_enable) {
374 if (ring->vlgrp && ext_info->vlan &&
375 (ring->vlan_tag_strip ==
376 VXGE_HW_VPATH_RPA_STRIP_VLAN_TAG_ENABLE))
377 vlan_gro_receive(&ring->napi, ring->vlgrp,
378 ext_info->vlan, skb);
379 else
380 napi_gro_receive(&ring->napi, skb);
381 } else {
382 if (ring->vlgrp && vlan &&
383 (ring->vlan_tag_strip ==
384 VXGE_HW_VPATH_RPA_STRIP_VLAN_TAG_ENABLE))
385 vlan_hwaccel_receive_skb(skb, ring->vlgrp, vlan);
386 else
387 netif_receive_skb(skb);
388 }
389 vxge_debug_entryexit(VXGE_TRACE,
390 "%s: %s:%d Exiting...", ring->ndev->name, __func__, __LINE__);
391}
392
393static inline void vxge_re_pre_post(void *dtr, struct vxge_ring *ring,
394 struct vxge_rx_priv *rx_priv)
395{
396 pci_dma_sync_single_for_device(ring->pdev,
397 rx_priv->data_dma, rx_priv->data_size, PCI_DMA_FROMDEVICE);
398
399 vxge_hw_ring_rxd_1b_set(dtr, rx_priv->data_dma, rx_priv->data_size);
400 vxge_hw_ring_rxd_pre_post(ring->handle, dtr);
401}
402
403static inline void vxge_post(int *dtr_cnt, void **first_dtr,
404 void *post_dtr, struct __vxge_hw_ring *ringh)
405{
406 int dtr_count = *dtr_cnt;
407 if ((*dtr_cnt % VXGE_HW_RXSYNC_FREQ_CNT) == 0) {
408 if (*first_dtr)
409 vxge_hw_ring_rxd_post_post_wmb(ringh, *first_dtr);
410 *first_dtr = post_dtr;
411 } else
412 vxge_hw_ring_rxd_post_post(ringh, post_dtr);
413 dtr_count++;
414 *dtr_cnt = dtr_count;
415}
416
417/*
418 * vxge_rx_1b_compl
419 *
420 * If the interrupt is because of a received frame or if the receive ring
421 * contains fresh as yet un-processed frames, this function is called.
422 */
423enum vxge_hw_status
424vxge_rx_1b_compl(struct __vxge_hw_ring *ringh, void *dtr,
425 u8 t_code, void *userdata)
426{
427 struct vxge_ring *ring = (struct vxge_ring *)userdata;
428 struct net_device *dev = ring->ndev;
429 unsigned int dma_sizes;
430 void *first_dtr = NULL;
431 int dtr_cnt = 0;
432 int data_size;
433 dma_addr_t data_dma;
434 int pkt_length;
435 struct sk_buff *skb;
436 struct vxge_rx_priv *rx_priv;
437 struct vxge_hw_ring_rxd_info ext_info;
438 vxge_debug_entryexit(VXGE_TRACE, "%s: %s:%d",
439 ring->ndev->name, __func__, __LINE__);
440 ring->pkts_processed = 0;
441
442 vxge_hw_ring_replenish(ringh, 0);
443
444 do {
445 rx_priv = vxge_hw_ring_rxd_private_get(dtr);
446 skb = rx_priv->skb;
447 data_size = rx_priv->data_size;
448 data_dma = rx_priv->data_dma;
449
450 vxge_debug_rx(VXGE_TRACE,
451 "%s: %s:%d skb = 0x%p",
452 ring->ndev->name, __func__, __LINE__, skb);
453
454 vxge_hw_ring_rxd_1b_get(ringh, dtr, &dma_sizes);
455 pkt_length = dma_sizes;
456
457 vxge_debug_rx(VXGE_TRACE,
458 "%s: %s:%d Packet Length = %d",
459 ring->ndev->name, __func__, __LINE__, pkt_length);
460
461 vxge_hw_ring_rxd_1b_info_get(ringh, dtr, &ext_info);
462
463 /* check skb validity */
464 vxge_assert(skb);
465
466 prefetch((char *)skb + L1_CACHE_BYTES);
467 if (unlikely(t_code)) {
468
469 if (vxge_hw_ring_handle_tcode(ringh, dtr, t_code) !=
470 VXGE_HW_OK) {
471
472 ring->stats.rx_errors++;
473 vxge_debug_rx(VXGE_TRACE,
474 "%s: %s :%d Rx T_code is %d",
475 ring->ndev->name, __func__,
476 __LINE__, t_code);
477
478 /* If the t_code is not supported and if the
479 * t_code is other than 0x5 (unparseable packet
480 * such as unknown UPV6 header), Drop it !!!
481 */
482 vxge_re_pre_post(dtr, ring, rx_priv);
483
484 vxge_post(&dtr_cnt, &first_dtr, dtr, ringh);
485 ring->stats.rx_dropped++;
486 continue;
487 }
488 }
489
490 if (pkt_length > VXGE_LL_RX_COPY_THRESHOLD) {
491
492 if (vxge_rx_alloc(dtr, ring, data_size) != NULL) {
493
494 if (!vxge_rx_map(dtr, ring)) {
495 skb_put(skb, pkt_length);
496
497 pci_unmap_single(ring->pdev, data_dma,
498 data_size, PCI_DMA_FROMDEVICE);
499
500 vxge_hw_ring_rxd_pre_post(ringh, dtr);
501 vxge_post(&dtr_cnt, &first_dtr, dtr,
502 ringh);
503 } else {
504 dev_kfree_skb(rx_priv->skb);
505 rx_priv->skb = skb;
506 rx_priv->data_size = data_size;
507 vxge_re_pre_post(dtr, ring, rx_priv);
508
509 vxge_post(&dtr_cnt, &first_dtr, dtr,
510 ringh);
511 ring->stats.rx_dropped++;
512 break;
513 }
514 } else {
515 vxge_re_pre_post(dtr, ring, rx_priv);
516
517 vxge_post(&dtr_cnt, &first_dtr, dtr, ringh);
518 ring->stats.rx_dropped++;
519 break;
520 }
521 } else {
522 struct sk_buff *skb_up;
523
524 skb_up = netdev_alloc_skb(dev, pkt_length +
525 VXGE_HW_HEADER_ETHERNET_II_802_3_ALIGN);
526 if (skb_up != NULL) {
527 skb_reserve(skb_up,
528 VXGE_HW_HEADER_ETHERNET_II_802_3_ALIGN);
529
530 pci_dma_sync_single_for_cpu(ring->pdev,
531 data_dma, data_size,
532 PCI_DMA_FROMDEVICE);
533
534 vxge_debug_mem(VXGE_TRACE,
535 "%s: %s:%d skb_up = %p",
536 ring->ndev->name, __func__,
537 __LINE__, skb);
538 memcpy(skb_up->data, skb->data, pkt_length);
539
540 vxge_re_pre_post(dtr, ring, rx_priv);
541
542 vxge_post(&dtr_cnt, &first_dtr, dtr,
543 ringh);
544 /* will netif_rx small SKB instead */
545 skb = skb_up;
546 skb_put(skb, pkt_length);
547 } else {
548 vxge_re_pre_post(dtr, ring, rx_priv);
549
550 vxge_post(&dtr_cnt, &first_dtr, dtr, ringh);
551 vxge_debug_rx(VXGE_ERR,
552 "%s: vxge_rx_1b_compl: out of "
553 "memory", dev->name);
554 ring->stats.skb_alloc_fail++;
555 break;
556 }
557 }
558
559 if ((ext_info.proto & VXGE_HW_FRAME_PROTO_TCP_OR_UDP) &&
560 !(ext_info.proto & VXGE_HW_FRAME_PROTO_IP_FRAG) &&
561 ring->rx_csum && /* Offload Rx side CSUM */
562 ext_info.l3_cksum == VXGE_HW_L3_CKSUM_OK &&
563 ext_info.l4_cksum == VXGE_HW_L4_CKSUM_OK)
564 skb->ip_summed = CHECKSUM_UNNECESSARY;
565 else
566 skb->ip_summed = CHECKSUM_NONE;
567
568 vxge_rx_complete(ring, skb, ext_info.vlan,
569 pkt_length, &ext_info);
570
571 ring->budget--;
572 ring->pkts_processed++;
573 if (!ring->budget)
574 break;
575
576 } while (vxge_hw_ring_rxd_next_completed(ringh, &dtr,
577 &t_code) == VXGE_HW_OK);
578
579 if (first_dtr)
580 vxge_hw_ring_rxd_post_post_wmb(ringh, first_dtr);
581
582 dev->last_rx = jiffies;
583
584 vxge_debug_entryexit(VXGE_TRACE,
585 "%s:%d Exiting...",
586 __func__, __LINE__);
587 return VXGE_HW_OK;
588}
589
590/*
591 * vxge_xmit_compl
592 *
593 * If an interrupt was raised to indicate DMA complete of the Tx packet,
594 * this function is called. It identifies the last TxD whose buffer was
595 * freed and frees all skbs whose data have already DMA'ed into the NICs
596 * internal memory.
597 */
598enum vxge_hw_status
599vxge_xmit_compl(struct __vxge_hw_fifo *fifo_hw, void *dtr,
600 enum vxge_hw_fifo_tcode t_code, void *userdata,
601 void **skb_ptr)
602{
603 struct vxge_fifo *fifo = (struct vxge_fifo *)userdata;
604 struct sk_buff *skb, *head = NULL;
605 struct sk_buff **temp;
606 int pkt_cnt = 0;
607
608 vxge_debug_entryexit(VXGE_TRACE,
609 "%s:%d Entered....", __func__, __LINE__);
610
611 do {
612 int frg_cnt;
613 skb_frag_t *frag;
614 int i = 0, j;
615 struct vxge_tx_priv *txd_priv =
616 vxge_hw_fifo_txdl_private_get(dtr);
617
618 skb = txd_priv->skb;
619 frg_cnt = skb_shinfo(skb)->nr_frags;
620 frag = &skb_shinfo(skb)->frags[0];
621
622 vxge_debug_tx(VXGE_TRACE,
623 "%s: %s:%d fifo_hw = %p dtr = %p "
624 "tcode = 0x%x", fifo->ndev->name, __func__,
625 __LINE__, fifo_hw, dtr, t_code);
626 /* check skb validity */
627 vxge_assert(skb);
628 vxge_debug_tx(VXGE_TRACE,
629 "%s: %s:%d skb = %p itxd_priv = %p frg_cnt = %d",
630 fifo->ndev->name, __func__, __LINE__,
631 skb, txd_priv, frg_cnt);
632 if (unlikely(t_code)) {
633 fifo->stats.tx_errors++;
634 vxge_debug_tx(VXGE_ERR,
635 "%s: tx: dtr %p completed due to "
636 "error t_code %01x", fifo->ndev->name,
637 dtr, t_code);
638 vxge_hw_fifo_handle_tcode(fifo_hw, dtr, t_code);
639 }
640
641 /* for unfragmented skb */
642 pci_unmap_single(fifo->pdev, txd_priv->dma_buffers[i++],
643 skb_headlen(skb), PCI_DMA_TODEVICE);
644
645 for (j = 0; j < frg_cnt; j++) {
646 pci_unmap_page(fifo->pdev,
647 txd_priv->dma_buffers[i++],
648 frag->size, PCI_DMA_TODEVICE);
649 frag += 1;
650 }
651
652 vxge_hw_fifo_txdl_free(fifo_hw, dtr);
653
654 /* Updating the statistics block */
655 fifo->stats.tx_frms++;
656 fifo->stats.tx_bytes += skb->len;
657
658 temp = (struct sk_buff **)&skb->cb;
659 *temp = head;
660 head = skb;
661
662 pkt_cnt++;
663 if (pkt_cnt > fifo->indicate_max_pkts)
664 break;
665
666 } while (vxge_hw_fifo_txdl_next_completed(fifo_hw,
667 &dtr, &t_code) == VXGE_HW_OK);
668
669 vxge_wake_tx_queue(fifo, skb);
670
671 if (skb_ptr)
672 *skb_ptr = (void *) head;
673
674 vxge_debug_entryexit(VXGE_TRACE,
675 "%s: %s:%d Exiting...",
676 fifo->ndev->name, __func__, __LINE__);
677 return VXGE_HW_OK;
678}
679
28679751 680/* select a vpath to transmit the packet */
703da5a1
RV		 681static u32 vxge_get_vpath_no(struct vxgedev *vdev, struct sk_buff *skb,
682 int *do_lock)
683{
684 u16 queue_len, counter = 0;
685 if (skb->protocol == htons(ETH_P_IP)) {
686 struct iphdr *ip;
687 struct tcphdr *th;
688
689 ip = ip_hdr(skb);
690
691 if ((ip->frag_off & htons(IP_OFFSET|IP_MF)) == 0) {
692 th = (struct tcphdr *)(((unsigned char *)ip) +
693 ip->ihl*4);
694
695 queue_len = vdev->no_of_vpath;
696 counter = (ntohs(th->source) +
697 ntohs(th->dest)) &
698 vdev->vpath_selector[queue_len - 1];
699 if (counter >= queue_len)
700 counter = queue_len - 1;
701
702 if (ip->protocol == IPPROTO_UDP) {
703#ifdef NETIF_F_LLTX
704 *do_lock = 0;
705#endif
706 }
707 }
708 }
709 return counter;
710}
711
712static enum vxge_hw_status vxge_search_mac_addr_in_list(
713 struct vxge_vpath *vpath, u64 del_mac)
714{
715 struct list_head *entry, *next;
716 list_for_each_safe(entry, next, &vpath->mac_addr_list) {
717 if (((struct vxge_mac_addrs *)entry)->macaddr == del_mac)
718 return TRUE;
719 }
720 return FALSE;
721}
722
723static int vxge_learn_mac(struct vxgedev *vdev, u8 *mac_header)
724{
725 struct macInfo mac_info;
726 u8 *mac_address = NULL;
727 u64 mac_addr = 0, vpath_vector = 0;
728 int vpath_idx = 0;
729 enum vxge_hw_status status = VXGE_HW_OK;
730 struct vxge_vpath *vpath = NULL;
731 struct __vxge_hw_device *hldev;
732
733 hldev = (struct __vxge_hw_device *) pci_get_drvdata(vdev->pdev);
734
735 mac_address = (u8 *)&mac_addr;
736 memcpy(mac_address, mac_header, ETH_ALEN);
737
738 /* Is this mac address already in the list? */
739 for (vpath_idx = 0; vpath_idx < vdev->no_of_vpath; vpath_idx++) {
740 vpath = &vdev->vpaths[vpath_idx];
741 if (vxge_search_mac_addr_in_list(vpath, mac_addr))
742 return vpath_idx;
743 }
744
745 memset(&mac_info, 0, sizeof(struct macInfo));
746 memcpy(mac_info.macaddr, mac_header, ETH_ALEN);
747
748 /* Any vpath has room to add mac address to its da table? */
749 for (vpath_idx = 0; vpath_idx < vdev->no_of_vpath; vpath_idx++) {
750 vpath = &vdev->vpaths[vpath_idx];
751 if (vpath->mac_addr_cnt < vpath->max_mac_addr_cnt) {
752 /* Add this mac address to this vpath */
753 mac_info.vpath_no = vpath_idx;
754 mac_info.state = VXGE_LL_MAC_ADDR_IN_DA_TABLE;
755 status = vxge_add_mac_addr(vdev, &mac_info);
756 if (status != VXGE_HW_OK)
757 return -EPERM;
758 return vpath_idx;
759 }
760 }
761
762 mac_info.state = VXGE_LL_MAC_ADDR_IN_LIST;
763 vpath_idx = 0;
764 mac_info.vpath_no = vpath_idx;
765 /* Is the first vpath already selected as catch-basin ? */
766 vpath = &vdev->vpaths[vpath_idx];
767 if (vpath->mac_addr_cnt > vpath->max_mac_addr_cnt) {
768 /* Add this mac address to this vpath */
769 if (FALSE == vxge_mac_list_add(vpath, &mac_info))
770 return -EPERM;
771 return vpath_idx;
772 }
773
774 /* Select first vpath as catch-basin */
775 vpath_vector = vxge_mBIT(vpath->device_id);
776 status = vxge_hw_mgmt_reg_write(vpath->vdev->devh,
777 vxge_hw_mgmt_reg_type_mrpcim,
778 0,
779 (ulong)offsetof(
780 struct vxge_hw_mrpcim_reg,
781 rts_mgr_cbasin_cfg),
782 vpath_vector);
783 if (status != VXGE_HW_OK) {
784 vxge_debug_tx(VXGE_ERR,
785 "%s: Unable to set the vpath-%d in catch-basin mode",
786 VXGE_DRIVER_NAME, vpath->device_id);
787 return -EPERM;
788 }
789
790 if (FALSE == vxge_mac_list_add(vpath, &mac_info))
791 return -EPERM;
792
793 return vpath_idx;
794}
795
796/**
797 * vxge_xmit
798 * @skb : the socket buffer containing the Tx data.
799 * @dev : device pointer.
800 *
801 * This function is the Tx entry point of the driver. Neterion NIC supports
802 * certain protocol assist features on Tx side, namely CSO, S/G, LSO.
803 * NOTE: when device cant queue the pkt, just the trans_start variable will
804 * not be upadted.
805*/
806static int
807vxge_xmit(struct sk_buff *skb, struct net_device *dev)
808{
809 struct vxge_fifo *fifo = NULL;
810 void *dtr_priv;
811 void *dtr = NULL;
812 struct vxgedev *vdev = NULL;
813 enum vxge_hw_status status;
814 int frg_cnt, first_frg_len;
815 skb_frag_t *frag;
816 int i = 0, j = 0, avail;
817 u64 dma_pointer;
818 struct vxge_tx_priv *txdl_priv = NULL;
819 struct __vxge_hw_fifo *fifo_hw;
703da5a1
RV		 820 int offload_type;
821 unsigned long flags = 0;
822 int vpath_no = 0;
823 int do_spin_tx_lock = 1;
824
825 vxge_debug_entryexit(VXGE_TRACE, "%s: %s:%d",
826 dev->name, __func__, __LINE__);
827
828 /* A buffer with no data will be dropped */
829 if (unlikely(skb->len <= 0)) {
830 vxge_debug_tx(VXGE_ERR,
831 "%s: Buffer has no data..", dev->name);
832 dev_kfree_skb(skb);
833 return NETDEV_TX_OK;
834 }
835
836 vdev = (struct vxgedev *)netdev_priv(dev);
837
838 if (unlikely(!is_vxge_card_up(vdev))) {
839 vxge_debug_tx(VXGE_ERR,
840 "%s: vdev not initialized", dev->name);
841 dev_kfree_skb(skb);
842 return NETDEV_TX_OK;
843 }
844
845 if (vdev->config.addr_learn_en) {
846 vpath_no = vxge_learn_mac(vdev, skb->data + ETH_ALEN);
847 if (vpath_no == -EPERM) {
848 vxge_debug_tx(VXGE_ERR,
849 "%s: Failed to store the mac address",
850 dev->name);
851 dev_kfree_skb(skb);
852 return NETDEV_TX_OK;
853 }
854 }
855
856 if (vdev->config.tx_steering_type == TX_MULTIQ_STEERING)
857 vpath_no = skb_get_queue_mapping(skb);
858 else if (vdev->config.tx_steering_type == TX_PORT_STEERING)
859 vpath_no = vxge_get_vpath_no(vdev, skb, &do_spin_tx_lock);
860
861 vxge_debug_tx(VXGE_TRACE, "%s: vpath_no= %d", dev->name, vpath_no);
862
863 if (vpath_no >= vdev->no_of_vpath)
864 vpath_no = 0;
865
866 fifo = &vdev->vpaths[vpath_no].fifo;
867 fifo_hw = fifo->handle;
868
869 if (do_spin_tx_lock)
870 spin_lock_irqsave(&fifo->tx_lock, flags);
871 else {
872 if (unlikely(!spin_trylock_irqsave(&fifo->tx_lock, flags)))
873 return NETDEV_TX_LOCKED;
874 }
875
876 if (vdev->config.tx_steering_type == TX_MULTIQ_STEERING) {
877 if (netif_subqueue_stopped(dev, skb)) {
878 spin_unlock_irqrestore(&fifo->tx_lock, flags);
879 return NETDEV_TX_BUSY;
880 }
881 } else if (unlikely(fifo->queue_state == VPATH_QUEUE_STOP)) {
882 if (netif_queue_stopped(dev)) {
883 spin_unlock_irqrestore(&fifo->tx_lock, flags);
884 return NETDEV_TX_BUSY;
885 }
886 }
887 avail = vxge_hw_fifo_free_txdl_count_get(fifo_hw);
888 if (avail == 0) {
889 vxge_debug_tx(VXGE_ERR,
890 "%s: No free TXDs available", dev->name);
891 fifo->stats.txd_not_free++;
892 vxge_stop_tx_queue(fifo);
893 goto _exit2;
894 }
895
896 status = vxge_hw_fifo_txdl_reserve(fifo_hw, &dtr, &dtr_priv);
897 if (unlikely(status != VXGE_HW_OK)) {
898 vxge_debug_tx(VXGE_ERR,
899 "%s: Out of descriptors .", dev->name);
900 fifo->stats.txd_out_of_desc++;
901 vxge_stop_tx_queue(fifo);
902 goto _exit2;
903 }
904
905 vxge_debug_tx(VXGE_TRACE,
906 "%s: %s:%d fifo_hw = %p dtr = %p dtr_priv = %p",
907 dev->name, __func__, __LINE__,
908 fifo_hw, dtr, dtr_priv);
909
910 if (vdev->vlgrp && vlan_tx_tag_present(skb)) {
911 u16 vlan_tag = vlan_tx_tag_get(skb);
912 vxge_hw_fifo_txdl_vlan_set(dtr, vlan_tag);
913 }
914
915 first_frg_len = skb_headlen(skb);
916
917 dma_pointer = pci_map_single(fifo->pdev, skb->data, first_frg_len,
918 PCI_DMA_TODEVICE);
919
920 if (unlikely(pci_dma_mapping_error(fifo->pdev, dma_pointer))) {
921 vxge_hw_fifo_txdl_free(fifo_hw, dtr);
922 vxge_stop_tx_queue(fifo);
923 fifo->stats.pci_map_fail++;
924 goto _exit2;
925 }
926
927 txdl_priv = vxge_hw_fifo_txdl_private_get(dtr);
928 txdl_priv->skb = skb;
929 txdl_priv->dma_buffers[j] = dma_pointer;
930
931 frg_cnt = skb_shinfo(skb)->nr_frags;
932 vxge_debug_tx(VXGE_TRACE,
933 "%s: %s:%d skb = %p txdl_priv = %p "
934 "frag_cnt = %d dma_pointer = 0x%llx", dev->name,
935 __func__, __LINE__, skb, txdl_priv,
936 frg_cnt, (unsigned long long)dma_pointer);
937
938 vxge_hw_fifo_txdl_buffer_set(fifo_hw, dtr, j++, dma_pointer,
939 first_frg_len);
940
941 frag = &skb_shinfo(skb)->frags[0];
942 for (i = 0; i < frg_cnt; i++) {
943 /* ignore 0 length fragment */
944 if (!frag->size)
945 continue;
946
947 dma_pointer =
948 (u64)pci_map_page(fifo->pdev, frag->page,
949 frag->page_offset, frag->size,
950 PCI_DMA_TODEVICE);
951
952 if (unlikely(pci_dma_mapping_error(fifo->pdev, dma_pointer)))
953 goto _exit0;
954 vxge_debug_tx(VXGE_TRACE,
955 "%s: %s:%d frag = %d dma_pointer = 0x%llx",
956 dev->name, __func__, __LINE__, i,
957 (unsigned long long)dma_pointer);
958
959 txdl_priv->dma_buffers[j] = dma_pointer;
960 vxge_hw_fifo_txdl_buffer_set(fifo_hw, dtr, j++, dma_pointer,
961 frag->size);
962 frag += 1;
963 }
964
965 offload_type = vxge_offload_type(skb);
966
967 if (offload_type & (SKB_GSO_TCPV4 | SKB_GSO_TCPV6)) {
968
969 int mss = vxge_tcp_mss(skb);
970 if (mss) {
703da5a1
RV		 971 vxge_debug_tx(VXGE_TRACE,
972 "%s: %s:%d mss = %d",
973 dev->name, __func__, __LINE__, mss);
974 vxge_hw_fifo_txdl_mss_set(dtr, mss);
975 } else {
976 vxge_assert(skb->len <=
977 dev->mtu + VXGE_HW_MAC_HEADER_MAX_SIZE);
978 vxge_assert(0);
979 goto _exit1;
980 }
981 }
982
983 if (skb->ip_summed == CHECKSUM_PARTIAL)
984 vxge_hw_fifo_txdl_cksum_set_bits(dtr,
985 VXGE_HW_FIFO_TXD_TX_CKO_IPV4_EN |
986 VXGE_HW_FIFO_TXD_TX_CKO_TCP_EN |
987 VXGE_HW_FIFO_TXD_TX_CKO_UDP_EN);
988
989 vxge_hw_fifo_txdl_post(fifo_hw, dtr);
28679751
ED		 990#ifdef NETIF_F_LLTX
991 dev->trans_start = jiffies; /* NETIF_F_LLTX driver :( */
992#endif
703da5a1
RV		 993 spin_unlock_irqrestore(&fifo->tx_lock, flags);
994
995 VXGE_COMPLETE_VPATH_TX(fifo);
996 vxge_debug_entryexit(VXGE_TRACE, "%s: %s:%d Exiting...",
997 dev->name, __func__, __LINE__);
6ed10654 998 return NETDEV_TX_OK;
703da5a1
RV		 999
1000_exit0:
1001 vxge_debug_tx(VXGE_TRACE, "%s: pci_map_page failed", dev->name);
1002
1003_exit1:
1004 j = 0;
1005 frag = &skb_shinfo(skb)->frags[0];
1006
1007 pci_unmap_single(fifo->pdev, txdl_priv->dma_buffers[j++],
1008 skb_headlen(skb), PCI_DMA_TODEVICE);
1009
1010 for (; j < i; j++) {
1011 pci_unmap_page(fifo->pdev, txdl_priv->dma_buffers[j],
1012 frag->size, PCI_DMA_TODEVICE);
1013 frag += 1;
1014 }
1015
1016 vxge_hw_fifo_txdl_free(fifo_hw, dtr);
1017_exit2:
1018 dev_kfree_skb(skb);
1019 spin_unlock_irqrestore(&fifo->tx_lock, flags);
1020 VXGE_COMPLETE_VPATH_TX(fifo);
1021
6ed10654 1022 return NETDEV_TX_OK;
703da5a1
RV		 1023}
1024
1025/*
1026 * vxge_rx_term
1027 *
1028 * Function will be called by hw function to abort all outstanding receive
1029 * descriptors.
1030 */
1031static void
1032vxge_rx_term(void *dtrh, enum vxge_hw_rxd_state state, void *userdata)
1033{
1034 struct vxge_ring *ring = (struct vxge_ring *)userdata;
1035 struct vxge_rx_priv *rx_priv =
1036 vxge_hw_ring_rxd_private_get(dtrh);
1037
1038 vxge_debug_entryexit(VXGE_TRACE, "%s: %s:%d",
1039 ring->ndev->name, __func__, __LINE__);
1040 if (state != VXGE_HW_RXD_STATE_POSTED)
1041 return;
1042
1043 pci_unmap_single(ring->pdev, rx_priv->data_dma,
1044 rx_priv->data_size, PCI_DMA_FROMDEVICE);
1045
1046 dev_kfree_skb(rx_priv->skb);
1047
1048 vxge_debug_entryexit(VXGE_TRACE,
1049 "%s: %s:%d Exiting...",
1050 ring->ndev->name, __func__, __LINE__);
1051}
1052
1053/*
1054 * vxge_tx_term
1055 *
1056 * Function will be called to abort all outstanding tx descriptors
1057 */
1058static void
1059vxge_tx_term(void *dtrh, enum vxge_hw_txdl_state state, void *userdata)
1060{
1061 struct vxge_fifo *fifo = (struct vxge_fifo *)userdata;
1062 skb_frag_t *frag;
1063 int i = 0, j, frg_cnt;
1064 struct vxge_tx_priv *txd_priv = vxge_hw_fifo_txdl_private_get(dtrh);
1065 struct sk_buff *skb = txd_priv->skb;
1066
1067 vxge_debug_entryexit(VXGE_TRACE, "%s:%d", __func__, __LINE__);
1068
1069 if (state != VXGE_HW_TXDL_STATE_POSTED)
1070 return;
1071
1072 /* check skb validity */
1073 vxge_assert(skb);
1074 frg_cnt = skb_shinfo(skb)->nr_frags;
1075 frag = &skb_shinfo(skb)->frags[0];
1076
1077 /* for unfragmented skb */
1078 pci_unmap_single(fifo->pdev, txd_priv->dma_buffers[i++],
1079 skb_headlen(skb), PCI_DMA_TODEVICE);
1080
1081 for (j = 0; j < frg_cnt; j++) {
1082 pci_unmap_page(fifo->pdev, txd_priv->dma_buffers[i++],
1083 frag->size, PCI_DMA_TODEVICE);
1084 frag += 1;
1085 }
1086
1087 dev_kfree_skb(skb);
1088
1089 vxge_debug_entryexit(VXGE_TRACE,
1090 "%s:%d Exiting...", __func__, __LINE__);
1091}
1092
1093/**
1094 * vxge_set_multicast
1095 * @dev: pointer to the device structure
1096 *
1097 * Entry point for multicast address enable/disable
1098 * This function is a driver entry point which gets called by the kernel
1099 * whenever multicast addresses must be enabled/disabled. This also gets
1100 * called to set/reset promiscuous mode. Depending on the deivce flag, we
1101 * determine, if multicast address must be enabled or if promiscuous mode
1102 * is to be disabled etc.
1103 */
1104static void vxge_set_multicast(struct net_device *dev)
1105{
1106 struct dev_mc_list *mclist;
1107 struct vxgedev *vdev;
1108 int i, mcast_cnt = 0;
1109 struct __vxge_hw_device *hldev;
1110 enum vxge_hw_status status = VXGE_HW_OK;
1111 struct macInfo mac_info;
1112 int vpath_idx = 0;
1113 struct vxge_mac_addrs *mac_entry;
1114 struct list_head *list_head;
1115 struct list_head *entry, *next;
1116 u8 *mac_address = NULL;
1117
1118 vxge_debug_entryexit(VXGE_TRACE,
1119 "%s:%d", __func__, __LINE__);
1120
1121 vdev = (struct vxgedev *)netdev_priv(dev);
1122 hldev = (struct __vxge_hw_device *)vdev->devh;
1123
1124 if (unlikely(!is_vxge_card_up(vdev)))
1125 return;
1126
1127 if ((dev->flags & IFF_ALLMULTI) && (!vdev->all_multi_flg)) {
1128 for (i = 0; i < vdev->no_of_vpath; i++) {
1129 vxge_assert(vdev->vpaths[i].is_open);
1130 status = vxge_hw_vpath_mcast_enable(
1131 vdev->vpaths[i].handle);
1132 vdev->all_multi_flg = 1;
1133 }
1134 } else if ((dev->flags & IFF_ALLMULTI) && (vdev->all_multi_flg)) {
1135 for (i = 0; i < vdev->no_of_vpath; i++) {
1136 vxge_assert(vdev->vpaths[i].is_open);
1137 status = vxge_hw_vpath_mcast_disable(
1138 vdev->vpaths[i].handle);
1139 vdev->all_multi_flg = 1;
1140 }
1141 }
1142
1143 if (status != VXGE_HW_OK)
1144 vxge_debug_init(VXGE_ERR,
1145 "failed to %s multicast, status %d",
1146 dev->flags & IFF_ALLMULTI ?
1147 "enable" : "disable", status);
1148
1149 if (!vdev->config.addr_learn_en) {
1150 if (dev->flags & IFF_PROMISC) {
1151 for (i = 0; i < vdev->no_of_vpath; i++) {
1152 vxge_assert(vdev->vpaths[i].is_open);
1153 status = vxge_hw_vpath_promisc_enable(
1154 vdev->vpaths[i].handle);
1155 }
1156 } else {
1157 for (i = 0; i < vdev->no_of_vpath; i++) {
1158 vxge_assert(vdev->vpaths[i].is_open);
1159 status = vxge_hw_vpath_promisc_disable(
1160 vdev->vpaths[i].handle);
1161 }
1162 }
1163 }
1164
1165 memset(&mac_info, 0, sizeof(struct macInfo));
1166 /* Update individual M_CAST address list */
1167 if ((!vdev->all_multi_flg) && dev->mc_count) {
1168
1169 mcast_cnt = vdev->vpaths[0].mcast_addr_cnt;
1170 list_head = &vdev->vpaths[0].mac_addr_list;
1171 if ((dev->mc_count +
1172 (vdev->vpaths[0].mac_addr_cnt - mcast_cnt)) >
1173 vdev->vpaths[0].max_mac_addr_cnt)
1174 goto _set_all_mcast;
1175
1176 /* Delete previous MC's */
1177 for (i = 0; i < mcast_cnt; i++) {
1178 if (!list_empty(list_head))
1179 mac_entry = (struct vxge_mac_addrs *)
1180 list_first_entry(list_head,
1181 struct vxge_mac_addrs,
1182 item);
1183
1184 list_for_each_safe(entry, next, list_head) {
1185
1186 mac_entry = (struct vxge_mac_addrs *) entry;
1187 /* Copy the mac address to delete */
1188 mac_address = (u8 *)&mac_entry->macaddr;
1189 memcpy(mac_info.macaddr, mac_address, ETH_ALEN);
1190
1191 /* Is this a multicast address */
1192 if (0x01 & mac_info.macaddr[0]) {
1193 for (vpath_idx = 0; vpath_idx <
1194 vdev->no_of_vpath;
1195 vpath_idx++) {
1196 mac_info.vpath_no = vpath_idx;
1197 status = vxge_del_mac_addr(
1198 vdev,
1199 &mac_info);
1200 }
1201 }
1202 }
1203 }
1204
1205 /* Add new ones */
1206 for (i = 0, mclist = dev->mc_list; i < dev->mc_count;
1207 i++, mclist = mclist->next) {
1208
1209 memcpy(mac_info.macaddr, mclist->dmi_addr, ETH_ALEN);
1210 for (vpath_idx = 0; vpath_idx < vdev->no_of_vpath;
1211 vpath_idx++) {
1212 mac_info.vpath_no = vpath_idx;
1213 mac_info.state = VXGE_LL_MAC_ADDR_IN_DA_TABLE;
1214 status = vxge_add_mac_addr(vdev, &mac_info);
1215 if (status != VXGE_HW_OK) {
1216 vxge_debug_init(VXGE_ERR,
1217 "%s:%d Setting individual"
1218 "multicast address failed",
1219 __func__, __LINE__);
1220 goto _set_all_mcast;
1221 }
1222 }
1223 }
1224
1225 return;
1226_set_all_mcast:
1227 mcast_cnt = vdev->vpaths[0].mcast_addr_cnt;
1228 /* Delete previous MC's */
1229 for (i = 0; i < mcast_cnt; i++) {
1230
1231 list_for_each_safe(entry, next, list_head) {
1232
1233 mac_entry = (struct vxge_mac_addrs *) entry;
1234 /* Copy the mac address to delete */
1235 mac_address = (u8 *)&mac_entry->macaddr;
1236 memcpy(mac_info.macaddr, mac_address, ETH_ALEN);
1237
1238 /* Is this a multicast address */
1239 if (0x01 & mac_info.macaddr[0])
1240 break;
1241 }
1242
1243 for (vpath_idx = 0; vpath_idx < vdev->no_of_vpath;
1244 vpath_idx++) {
1245 mac_info.vpath_no = vpath_idx;
1246 status = vxge_del_mac_addr(vdev, &mac_info);
1247 }
1248 }
1249
1250 /* Enable all multicast */
1251 for (i = 0; i < vdev->no_of_vpath; i++) {
1252 vxge_assert(vdev->vpaths[i].is_open);
1253 status = vxge_hw_vpath_mcast_enable(
1254 vdev->vpaths[i].handle);
1255 if (status != VXGE_HW_OK) {
1256 vxge_debug_init(VXGE_ERR,
1257 "%s:%d Enabling all multicasts failed",
1258 __func__, __LINE__);
1259 }
1260 vdev->all_multi_flg = 1;
1261 }
1262 dev->flags |= IFF_ALLMULTI;
1263 }
1264
1265 vxge_debug_entryexit(VXGE_TRACE,
1266 "%s:%d Exiting...", __func__, __LINE__);
1267}
1268
1269/**
1270 * vxge_set_mac_addr
1271 * @dev: pointer to the device structure
1272 *
1273 * Update entry "0" (default MAC addr)
1274 */
1275static int vxge_set_mac_addr(struct net_device *dev, void *p)
1276{
1277 struct sockaddr *addr = p;
1278 struct vxgedev *vdev;
1279 struct __vxge_hw_device *hldev;
1280 enum vxge_hw_status status = VXGE_HW_OK;
1281 struct macInfo mac_info_new, mac_info_old;
1282 int vpath_idx = 0;
1283
1284 vxge_debug_entryexit(VXGE_TRACE, "%s:%d", __func__, __LINE__);
1285
1286 vdev = (struct vxgedev *)netdev_priv(dev);
1287 hldev = vdev->devh;
1288
1289 if (!is_valid_ether_addr(addr->sa_data))
1290 return -EINVAL;
1291
1292 memset(&mac_info_new, 0, sizeof(struct macInfo));
1293 memset(&mac_info_old, 0, sizeof(struct macInfo));
1294
1295 vxge_debug_entryexit(VXGE_TRACE, "%s:%d Exiting...",
1296 __func__, __LINE__);
1297
1298 /* Get the old address */
1299 memcpy(mac_info_old.macaddr, dev->dev_addr, dev->addr_len);
1300
1301 /* Copy the new address */
1302 memcpy(mac_info_new.macaddr, addr->sa_data, dev->addr_len);
1303
1304 /* First delete the old mac address from all the vpaths
1305 as we can't specify the index while adding new mac address */
1306 for (vpath_idx = 0; vpath_idx < vdev->no_of_vpath; vpath_idx++) {
1307 struct vxge_vpath *vpath = &vdev->vpaths[vpath_idx];
1308 if (!vpath->is_open) {
1309 /* This can happen when this interface is added/removed
1310 to the bonding interface. Delete this station address
1311 from the linked list */
1312 vxge_mac_list_del(vpath, &mac_info_old);
1313
1314 /* Add this new address to the linked list
1315 for later restoring */
1316 vxge_mac_list_add(vpath, &mac_info_new);
1317
1318 continue;
1319 }
1320 /* Delete the station address */
1321 mac_info_old.vpath_no = vpath_idx;
1322 status = vxge_del_mac_addr(vdev, &mac_info_old);
1323 }
1324
1325 if (unlikely(!is_vxge_card_up(vdev))) {
1326 memcpy(dev->dev_addr, addr->sa_data, dev->addr_len);
1327 return VXGE_HW_OK;
1328 }
1329
1330 /* Set this mac address to all the vpaths */
1331 for (vpath_idx = 0; vpath_idx < vdev->no_of_vpath; vpath_idx++) {
1332 mac_info_new.vpath_no = vpath_idx;
1333 mac_info_new.state = VXGE_LL_MAC_ADDR_IN_DA_TABLE;
1334 status = vxge_add_mac_addr(vdev, &mac_info_new);
1335 if (status != VXGE_HW_OK)
1336 return -EINVAL;
1337 }
1338
1339 memcpy(dev->dev_addr, addr->sa_data, dev->addr_len);
1340
1341 return status;
1342}
1343
1344/*
1345 * vxge_vpath_intr_enable
1346 * @vdev: pointer to vdev
1347 * @vp_id: vpath for which to enable the interrupts
1348 *
1349 * Enables the interrupts for the vpath
1350*/
1351void vxge_vpath_intr_enable(struct vxgedev *vdev, int vp_id)
1352{
1353 struct vxge_vpath *vpath = &vdev->vpaths[vp_id];
1354 int msix_id, alarm_msix_id;
1355 int tim_msix_id[4] = {[0 ...3] = 0};
1356
1357 vxge_hw_vpath_intr_enable(vpath->handle);
1358
1359 if (vdev->config.intr_type == INTA)
1360 vxge_hw_vpath_inta_unmask_tx_rx(vpath->handle);
1361 else {
1362 msix_id = vp_id * VXGE_HW_VPATH_MSIX_ACTIVE;
1363 alarm_msix_id =
1364 VXGE_HW_VPATH_MSIX_ACTIVE * vdev->no_of_vpath - 2;
1365
1366 tim_msix_id[0] = msix_id;
1367 tim_msix_id[1] = msix_id + 1;
1368 vxge_hw_vpath_msix_set(vpath->handle, tim_msix_id,
1369 alarm_msix_id);
1370
1371 vxge_hw_vpath_msix_unmask(vpath->handle, msix_id);
1372 vxge_hw_vpath_msix_unmask(vpath->handle, msix_id + 1);
1373
1374 /* enable the alarm vector */
1375 vxge_hw_vpath_msix_unmask(vpath->handle, alarm_msix_id);
1376 }
1377}
1378
1379/*
1380 * vxge_vpath_intr_disable
1381 * @vdev: pointer to vdev
1382 * @vp_id: vpath for which to disable the interrupts
1383 *
1384 * Disables the interrupts for the vpath
1385*/
1386void vxge_vpath_intr_disable(struct vxgedev *vdev, int vp_id)
1387{
1388 struct vxge_vpath *vpath = &vdev->vpaths[vp_id];
1389 int msix_id;
1390
1391 vxge_hw_vpath_intr_disable(vpath->handle);
1392
1393 if (vdev->config.intr_type == INTA)
1394 vxge_hw_vpath_inta_mask_tx_rx(vpath->handle);
1395 else {
1396 msix_id = vp_id * VXGE_HW_VPATH_MSIX_ACTIVE;
1397 vxge_hw_vpath_msix_mask(vpath->handle, msix_id);
1398 vxge_hw_vpath_msix_mask(vpath->handle, msix_id + 1);
1399
1400 /* disable the alarm vector */
1401 msix_id = VXGE_HW_VPATH_MSIX_ACTIVE * vdev->no_of_vpath - 2;
1402 vxge_hw_vpath_msix_mask(vpath->handle, msix_id);
1403 }
1404}
1405
1406/*
1407 * vxge_reset_vpath
1408 * @vdev: pointer to vdev
1409 * @vp_id: vpath to reset
1410 *
1411 * Resets the vpath
1412*/
1413static int vxge_reset_vpath(struct vxgedev *vdev, int vp_id)
1414{
1415 enum vxge_hw_status status = VXGE_HW_OK;
1416 int ret = 0;
1417
1418 /* check if device is down already */
1419 if (unlikely(!is_vxge_card_up(vdev)))
1420 return 0;
1421
1422 /* is device reset already scheduled */
1423 if (test_bit(__VXGE_STATE_RESET_CARD, &vdev->state))
1424 return 0;
1425
1426 if (vdev->vpaths[vp_id].handle) {
1427 if (vxge_hw_vpath_reset(vdev->vpaths[vp_id].handle)
1428 == VXGE_HW_OK) {
1429 if (is_vxge_card_up(vdev) &&
1430 vxge_hw_vpath_recover_from_reset(
1431 vdev->vpaths[vp_id].handle)
1432 != VXGE_HW_OK) {
1433 vxge_debug_init(VXGE_ERR,
1434 "vxge_hw_vpath_recover_from_reset"
1435 "failed for vpath:%d", vp_id);
1436 return status;
1437 }
1438 } else {
1439 vxge_debug_init(VXGE_ERR,
1440 "vxge_hw_vpath_reset failed for"
1441 "vpath:%d", vp_id);
1442 return status;
1443 }
1444 } else
1445 return VXGE_HW_FAIL;
1446
1447 vxge_restore_vpath_mac_addr(&vdev->vpaths[vp_id]);
1448 vxge_restore_vpath_vid_table(&vdev->vpaths[vp_id]);
1449
1450 /* Enable all broadcast */
1451 vxge_hw_vpath_bcast_enable(vdev->vpaths[vp_id].handle);
1452
1453 /* Enable the interrupts */
1454 vxge_vpath_intr_enable(vdev, vp_id);
1455
1456 smp_wmb();
1457
1458 /* Enable the flow of traffic through the vpath */
1459 vxge_hw_vpath_enable(vdev->vpaths[vp_id].handle);
1460
1461 smp_wmb();
1462 vxge_hw_vpath_rx_doorbell_init(vdev->vpaths[vp_id].handle);
1463 vdev->vpaths[vp_id].ring.last_status = VXGE_HW_OK;
1464
1465 /* Vpath reset done */
1466 clear_bit(vp_id, &vdev->vp_reset);
1467
1468 /* Start the vpath queue */
1469 vxge_wake_tx_queue(&vdev->vpaths[vp_id].fifo, NULL);
1470
1471 return ret;
1472}
1473
1474static int do_vxge_reset(struct vxgedev *vdev, int event)
1475{
1476 enum vxge_hw_status status;
1477 int ret = 0, vp_id, i;
1478
1479 vxge_debug_entryexit(VXGE_TRACE, "%s:%d", __func__, __LINE__);
1480
1481 if ((event == VXGE_LL_FULL_RESET) || (event == VXGE_LL_START_RESET)) {
1482 /* check if device is down already */
1483 if (unlikely(!is_vxge_card_up(vdev)))
1484 return 0;
1485
1486 /* is reset already scheduled */
1487 if (test_and_set_bit(__VXGE_STATE_RESET_CARD, &vdev->state))
1488 return 0;
1489 }
1490
1491 if (event == VXGE_LL_FULL_RESET) {
1492 /* wait for all the vpath reset to complete */
1493 for (vp_id = 0; vp_id < vdev->no_of_vpath; vp_id++) {
1494 while (test_bit(vp_id, &vdev->vp_reset))
1495 msleep(50);
1496 }
1497
1498 /* if execution mode is set to debug, don't reset the adapter */
1499 if (unlikely(vdev->exec_mode)) {
1500 vxge_debug_init(VXGE_ERR,
1501 "%s: execution mode is debug, returning..",
1502 vdev->ndev->name);
1503 clear_bit(__VXGE_STATE_CARD_UP, &vdev->state);
1504 vxge_stop_all_tx_queue(vdev);
1505 return 0;
1506 }
1507 }
1508
1509 if (event == VXGE_LL_FULL_RESET) {
1510 vxge_hw_device_intr_disable(vdev->devh);
1511
1512 switch (vdev->cric_err_event) {
1513 case VXGE_HW_EVENT_UNKNOWN:
1514 vxge_stop_all_tx_queue(vdev);
1515 vxge_debug_init(VXGE_ERR,
1516 "fatal: %s: Disabling device due to"
1517 "unknown error",
1518 vdev->ndev->name);
1519 ret = -EPERM;
1520 goto out;
1521 case VXGE_HW_EVENT_RESET_START:
1522 break;
1523 case VXGE_HW_EVENT_RESET_COMPLETE:
1524 case VXGE_HW_EVENT_LINK_DOWN:
1525 case VXGE_HW_EVENT_LINK_UP:
1526 case VXGE_HW_EVENT_ALARM_CLEARED:
1527 case VXGE_HW_EVENT_ECCERR:
1528 case VXGE_HW_EVENT_MRPCIM_ECCERR:
1529 ret = -EPERM;
1530 goto out;
1531 case VXGE_HW_EVENT_FIFO_ERR:
1532 case VXGE_HW_EVENT_VPATH_ERR:
1533 break;
1534 case VXGE_HW_EVENT_CRITICAL_ERR:
1535 vxge_stop_all_tx_queue(vdev);
1536 vxge_debug_init(VXGE_ERR,
1537 "fatal: %s: Disabling device due to"
1538 "serious error",
1539 vdev->ndev->name);
1540 /* SOP or device reset required */
1541 /* This event is not currently used */
1542 ret = -EPERM;
1543 goto out;
1544 case VXGE_HW_EVENT_SERR:
1545 vxge_stop_all_tx_queue(vdev);
1546 vxge_debug_init(VXGE_ERR,
1547 "fatal: %s: Disabling device due to"
1548 "serious error",
1549 vdev->ndev->name);
1550 ret = -EPERM;
1551 goto out;
1552 case VXGE_HW_EVENT_SRPCIM_SERR:
1553 case VXGE_HW_EVENT_MRPCIM_SERR:
1554 ret = -EPERM;
1555 goto out;
1556 case VXGE_HW_EVENT_SLOT_FREEZE:
1557 vxge_stop_all_tx_queue(vdev);
1558 vxge_debug_init(VXGE_ERR,
1559 "fatal: %s: Disabling device due to"
1560 "slot freeze",
1561 vdev->ndev->name);
1562 ret = -EPERM;
1563 goto out;
1564 default:
1565 break;
1566
1567 }
1568 }
1569
1570 if ((event == VXGE_LL_FULL_RESET) || (event == VXGE_LL_START_RESET))
1571 vxge_stop_all_tx_queue(vdev);
1572
1573 if (event == VXGE_LL_FULL_RESET) {
1574 status = vxge_reset_all_vpaths(vdev);
1575 if (status != VXGE_HW_OK) {
1576 vxge_debug_init(VXGE_ERR,
1577 "fatal: %s: can not reset vpaths",
1578 vdev->ndev->name);
1579 ret = -EPERM;
1580 goto out;
1581 }
1582 }
1583
1584 if (event == VXGE_LL_COMPL_RESET) {
1585 for (i = 0; i < vdev->no_of_vpath; i++)
1586 if (vdev->vpaths[i].handle) {
1587 if (vxge_hw_vpath_recover_from_reset(
1588 vdev->vpaths[i].handle)
1589 != VXGE_HW_OK) {
1590 vxge_debug_init(VXGE_ERR,
1591 "vxge_hw_vpath_recover_"
1592 "from_reset failed for vpath: "
1593 "%d", i);
1594 ret = -EPERM;
1595 goto out;
1596 }
1597 } else {
1598 vxge_debug_init(VXGE_ERR,
1599 "vxge_hw_vpath_reset failed for "
1600 "vpath:%d", i);
1601 ret = -EPERM;
1602 goto out;
1603 }
1604 }
1605
1606 if ((event == VXGE_LL_FULL_RESET) || (event == VXGE_LL_COMPL_RESET)) {
1607 /* Reprogram the DA table with populated mac addresses */
1608 for (vp_id = 0; vp_id < vdev->no_of_vpath; vp_id++) {
1609 vxge_restore_vpath_mac_addr(&vdev->vpaths[vp_id]);
1610 vxge_restore_vpath_vid_table(&vdev->vpaths[vp_id]);
1611 }
1612
1613 /* enable vpath interrupts */
1614 for (i = 0; i < vdev->no_of_vpath; i++)
1615 vxge_vpath_intr_enable(vdev, i);
1616
1617 vxge_hw_device_intr_enable(vdev->devh);
1618
1619 smp_wmb();
1620
1621 /* Indicate card up */
1622 set_bit(__VXGE_STATE_CARD_UP, &vdev->state);
1623
1624 /* Get the traffic to flow through the vpaths */
1625 for (i = 0; i < vdev->no_of_vpath; i++) {
1626 vxge_hw_vpath_enable(vdev->vpaths[i].handle);
1627 smp_wmb();
1628 vxge_hw_vpath_rx_doorbell_init(vdev->vpaths[i].handle);
1629 }
1630
1631 vxge_wake_all_tx_queue(vdev);
1632 }
1633
1634out:
1635 vxge_debug_entryexit(VXGE_TRACE,
1636 "%s:%d Exiting...", __func__, __LINE__);
1637
1638 /* Indicate reset done */
1639 if ((event == VXGE_LL_FULL_RESET) || (event == VXGE_LL_COMPL_RESET))
1640 clear_bit(__VXGE_STATE_RESET_CARD, &vdev->state);
1641 return ret;
1642}
1643
1644/*
1645 * vxge_reset
1646 * @vdev: pointer to ll device
1647 *
1648 * driver may reset the chip on events of serr, eccerr, etc
1649 */
1650int vxge_reset(struct vxgedev *vdev)
1651{
1652 do_vxge_reset(vdev, VXGE_LL_FULL_RESET);
1653 return 0;
1654}
1655
1656/**
1657 * vxge_poll - Receive handler when Receive Polling is used.
1658 * @dev: pointer to the device structure.
1659 * @budget: Number of packets budgeted to be processed in this iteration.
1660 *
1661 * This function comes into picture only if Receive side is being handled
1662 * through polling (called NAPI in linux). It mostly does what the normal
1663 * Rx interrupt handler does in terms of descriptor and packet processing
1664 * but not in an interrupt context. Also it will process a specified number
1665 * of packets at most in one iteration. This value is passed down by the
1666 * kernel as the function argument 'budget'.
1667 */
1668static int vxge_poll_msix(struct napi_struct *napi, int budget)
1669{
1670 struct vxge_ring *ring =
1671 container_of(napi, struct vxge_ring, napi);
1672 int budget_org = budget;
1673 ring->budget = budget;
1674
1675 vxge_hw_vpath_poll_rx(ring->handle);
1676
1677 if (ring->pkts_processed < budget_org) {
1678 napi_complete(napi);
1679 /* Re enable the Rx interrupts for the vpath */
1680 vxge_hw_channel_msix_unmask(
1681 (struct __vxge_hw_channel *)ring->handle,
1682 ring->rx_vector_no);
1683 }
1684
1685 return ring->pkts_processed;
1686}
1687
1688static int vxge_poll_inta(struct napi_struct *napi, int budget)
1689{
1690 struct vxgedev *vdev = container_of(napi, struct vxgedev, napi);
1691 int pkts_processed = 0;
1692 int i;
1693 int budget_org = budget;
1694 struct vxge_ring *ring;
1695
1696 struct __vxge_hw_device *hldev = (struct __vxge_hw_device *)
1697 pci_get_drvdata(vdev->pdev);
1698
1699 for (i = 0; i < vdev->no_of_vpath; i++) {
1700 ring = &vdev->vpaths[i].ring;
1701 ring->budget = budget;
1702 vxge_hw_vpath_poll_rx(ring->handle);
1703 pkts_processed += ring->pkts_processed;
1704 budget -= ring->pkts_processed;
1705 if (budget <= 0)
1706 break;
1707 }
1708
1709 VXGE_COMPLETE_ALL_TX(vdev);
1710
1711 if (pkts_processed < budget_org) {
1712 napi_complete(napi);
1713 /* Re enable the Rx interrupts for the ring */
1714 vxge_hw_device_unmask_all(hldev);
1715 vxge_hw_device_flush_io(hldev);
1716 }
1717
1718 return pkts_processed;
1719}
1720
1721#ifdef CONFIG_NET_POLL_CONTROLLER
1722/**
1723 * vxge_netpoll - netpoll event handler entry point
1724 * @dev : pointer to the device structure.
1725 * Description:
1726 * This function will be called by upper layer to check for events on the
1727 * interface in situations where interrupts are disabled. It is used for
1728 * specific in-kernel networking tasks, such as remote consoles and kernel
1729 * debugging over the network (example netdump in RedHat).
1730 */
1731static void vxge_netpoll(struct net_device *dev)
1732{
1733 struct __vxge_hw_device *hldev;
1734 struct vxgedev *vdev;
1735
1736 vdev = (struct vxgedev *)netdev_priv(dev);
1737 hldev = (struct __vxge_hw_device *)pci_get_drvdata(vdev->pdev);
1738
1739 vxge_debug_entryexit(VXGE_TRACE, "%s:%d", __func__, __LINE__);
1740
1741 if (pci_channel_offline(vdev->pdev))
1742 return;
1743
1744 disable_irq(dev->irq);
1745 vxge_hw_device_clear_tx_rx(hldev);
1746
1747 vxge_hw_device_clear_tx_rx(hldev);
1748 VXGE_COMPLETE_ALL_RX(vdev);
1749 VXGE_COMPLETE_ALL_TX(vdev);
1750
1751 enable_irq(dev->irq);
1752
1753 vxge_debug_entryexit(VXGE_TRACE,
1754 "%s:%d Exiting...", __func__, __LINE__);
1755 return;
1756}
1757#endif
1758
1759/* RTH configuration */
1760static enum vxge_hw_status vxge_rth_configure(struct vxgedev *vdev)
1761{
1762 enum vxge_hw_status status = VXGE_HW_OK;
1763 struct vxge_hw_rth_hash_types hash_types;
1764 u8 itable[256] = {0}; /* indirection table */
1765 u8 mtable[256] = {0}; /* CPU to vpath mapping */
1766 int index;
1767
1768 /*
1769 * Filling
1770 * - itable with bucket numbers
1771 * - mtable with bucket-to-vpath mapping
1772 */
1773 for (index = 0; index < (1 << vdev->config.rth_bkt_sz); index++) {
1774 itable[index] = index;
1775 mtable[index] = index % vdev->no_of_vpath;
1776 }
1777
1778 /* Fill RTH hash types */
1779 hash_types.hash_type_tcpipv4_en = vdev->config.rth_hash_type_tcpipv4;
1780 hash_types.hash_type_ipv4_en = vdev->config.rth_hash_type_ipv4;
1781 hash_types.hash_type_tcpipv6_en = vdev->config.rth_hash_type_tcpipv6;
1782 hash_types.hash_type_ipv6_en = vdev->config.rth_hash_type_ipv6;
1783 hash_types.hash_type_tcpipv6ex_en =
1784 vdev->config.rth_hash_type_tcpipv6ex;
1785 hash_types.hash_type_ipv6ex_en = vdev->config.rth_hash_type_ipv6ex;
1786
1787 /* set indirection table, bucket-to-vpath mapping */
1788 status = vxge_hw_vpath_rts_rth_itable_set(vdev->vp_handles,
1789 vdev->no_of_vpath,
1790 mtable, itable,
1791 vdev->config.rth_bkt_sz);
1792 if (status != VXGE_HW_OK) {
1793 vxge_debug_init(VXGE_ERR,
1794 "RTH indirection table configuration failed "
1795 "for vpath:%d", vdev->vpaths[0].device_id);
1796 return status;
1797 }
1798
1799 /*
1800 * Because the itable_set() method uses the active_table field
1801 * for the target virtual path the RTH config should be updated
1802 * for all VPATHs. The h/w only uses the lowest numbered VPATH
1803 * when steering frames.
1804 */
1805 for (index = 0; index < vdev->no_of_vpath; index++) {
1806 status = vxge_hw_vpath_rts_rth_set(
1807 vdev->vpaths[index].handle,
1808 vdev->config.rth_algorithm,
1809 &hash_types,
1810 vdev->config.rth_bkt_sz);
1811
1812 if (status != VXGE_HW_OK) {
1813 vxge_debug_init(VXGE_ERR,
1814 "RTH configuration failed for vpath:%d",
1815 vdev->vpaths[index].device_id);
1816 return status;
1817 }
1818 }
1819
1820 return status;
1821}
1822
1823int vxge_mac_list_add(struct vxge_vpath *vpath, struct macInfo *mac)
1824{
1825 struct vxge_mac_addrs *new_mac_entry;
1826 u8 *mac_address = NULL;
1827
1828 if (vpath->mac_addr_cnt >= VXGE_MAX_LEARN_MAC_ADDR_CNT)
1829 return TRUE;
1830
1831 new_mac_entry = kzalloc(sizeof(struct vxge_mac_addrs), GFP_ATOMIC);
1832 if (!new_mac_entry) {
1833 vxge_debug_mem(VXGE_ERR,
1834 "%s: memory allocation failed",
1835 VXGE_DRIVER_NAME);
1836 return FALSE;
1837 }
1838
1839 list_add(&new_mac_entry->item, &vpath->mac_addr_list);
1840
1841 /* Copy the new mac address to the list */
1842 mac_address = (u8 *)&new_mac_entry->macaddr;
1843 memcpy(mac_address, mac->macaddr, ETH_ALEN);
1844
1845 new_mac_entry->state = mac->state;
1846 vpath->mac_addr_cnt++;
1847
1848 /* Is this a multicast address */
1849 if (0x01 & mac->macaddr[0])
1850 vpath->mcast_addr_cnt++;
1851
1852 return TRUE;
1853}
1854
1855/* Add a mac address to DA table */
1856enum vxge_hw_status vxge_add_mac_addr(struct vxgedev *vdev, struct macInfo *mac)
1857{
1858 enum vxge_hw_status status = VXGE_HW_OK;
1859 struct vxge_vpath *vpath;
1860 enum vxge_hw_vpath_mac_addr_add_mode duplicate_mode;
1861
1862 if (0x01 & mac->macaddr[0]) /* multicast address */
1863 duplicate_mode = VXGE_HW_VPATH_MAC_ADDR_ADD_DUPLICATE;
1864 else
1865 duplicate_mode = VXGE_HW_VPATH_MAC_ADDR_REPLACE_DUPLICATE;
1866
1867 vpath = &vdev->vpaths[mac->vpath_no];
1868 status = vxge_hw_vpath_mac_addr_add(vpath->handle, mac->macaddr,
1869 mac->macmask, duplicate_mode);
1870 if (status != VXGE_HW_OK) {
1871 vxge_debug_init(VXGE_ERR,
1872 "DA config add entry failed for vpath:%d",
1873 vpath->device_id);
1874 } else
1875 if (FALSE == vxge_mac_list_add(vpath, mac))
1876 status = -EPERM;
1877
1878 return status;
1879}
1880
1881int vxge_mac_list_del(struct vxge_vpath *vpath, struct macInfo *mac)
1882{
1883 struct list_head *entry, *next;
1884 u64 del_mac = 0;
1885 u8 *mac_address = (u8 *) (&del_mac);
1886
1887 /* Copy the mac address to delete from the list */
1888 memcpy(mac_address, mac->macaddr, ETH_ALEN);
1889
1890 list_for_each_safe(entry, next, &vpath->mac_addr_list) {
1891 if (((struct vxge_mac_addrs *)entry)->macaddr == del_mac) {
1892 list_del(entry);
1893 kfree((struct vxge_mac_addrs *)entry);
1894 vpath->mac_addr_cnt--;
1895
1896 /* Is this a multicast address */
1897 if (0x01 & mac->macaddr[0])
1898 vpath->mcast_addr_cnt--;
1899 return TRUE;
1900 }
1901 }
1902
1903 return FALSE;
1904}
1905/* delete a mac address from DA table */
1906enum vxge_hw_status vxge_del_mac_addr(struct vxgedev *vdev, struct macInfo *mac)
1907{
1908 enum vxge_hw_status status = VXGE_HW_OK;
1909 struct vxge_vpath *vpath;
1910
1911 vpath = &vdev->vpaths[mac->vpath_no];
1912 status = vxge_hw_vpath_mac_addr_delete(vpath->handle, mac->macaddr,
1913 mac->macmask);
1914 if (status != VXGE_HW_OK) {
1915 vxge_debug_init(VXGE_ERR,
1916 "DA config delete entry failed for vpath:%d",
1917 vpath->device_id);
1918 } else
1919 vxge_mac_list_del(vpath, mac);
1920 return status;
1921}
1922
1923/* list all mac addresses from DA table */
1924enum vxge_hw_status
1925static vxge_search_mac_addr_in_da_table(struct vxge_vpath *vpath,
1926 struct macInfo *mac)
1927{
1928 enum vxge_hw_status status = VXGE_HW_OK;
1929 unsigned char macmask[ETH_ALEN];
1930 unsigned char macaddr[ETH_ALEN];
1931
1932 status = vxge_hw_vpath_mac_addr_get(vpath->handle,
1933 macaddr, macmask);
1934 if (status != VXGE_HW_OK) {
1935 vxge_debug_init(VXGE_ERR,
1936 "DA config list entry failed for vpath:%d",
1937 vpath->device_id);
1938 return status;
1939 }
1940
1941 while (memcmp(mac->macaddr, macaddr, ETH_ALEN)) {
1942
1943 status = vxge_hw_vpath_mac_addr_get_next(vpath->handle,
1944 macaddr, macmask);
1945 if (status != VXGE_HW_OK)
1946 break;
1947 }
1948
1949 return status;
1950}
1951
1952/* Store all vlan ids from the list to the vid table */
1953enum vxge_hw_status vxge_restore_vpath_vid_table(struct vxge_vpath *vpath)
1954{
1955 enum vxge_hw_status status = VXGE_HW_OK;
1956 struct vxgedev *vdev = vpath->vdev;
1957 u16 vid;
1958
1959 if (vdev->vlgrp && vpath->is_open) {
1960
1961 for (vid = 0; vid < VLAN_GROUP_ARRAY_LEN; vid++) {
1962 if (!vlan_group_get_device(vdev->vlgrp, vid))
1963 continue;
1964 /* Add these vlan to the vid table */
1965 status = vxge_hw_vpath_vid_add(vpath->handle, vid);
1966 }
1967 }
1968
1969 return status;
1970}
1971
1972/* Store all mac addresses from the list to the DA table */
1973enum vxge_hw_status vxge_restore_vpath_mac_addr(struct vxge_vpath *vpath)
1974{
1975 enum vxge_hw_status status = VXGE_HW_OK;
1976 struct macInfo mac_info;
1977 u8 *mac_address = NULL;
1978 struct list_head *entry, *next;
1979
1980 memset(&mac_info, 0, sizeof(struct macInfo));
1981
1982 if (vpath->is_open) {
1983
1984 list_for_each_safe(entry, next, &vpath->mac_addr_list) {
1985 mac_address =
1986 (u8 *)&
1987 ((struct vxge_mac_addrs *)entry)->macaddr;
1988 memcpy(mac_info.macaddr, mac_address, ETH_ALEN);
1989 ((struct vxge_mac_addrs *)entry)->state =
1990 VXGE_LL_MAC_ADDR_IN_DA_TABLE;
1991 /* does this mac address already exist in da table? */
1992 status = vxge_search_mac_addr_in_da_table(vpath,
1993 &mac_info);
1994 if (status != VXGE_HW_OK) {
1995 /* Add this mac address to the DA table */
1996 status = vxge_hw_vpath_mac_addr_add(
1997 vpath->handle, mac_info.macaddr,
1998 mac_info.macmask,
1999 VXGE_HW_VPATH_MAC_ADDR_ADD_DUPLICATE);
2000 if (status != VXGE_HW_OK) {
2001 vxge_debug_init(VXGE_ERR,
2002 "DA add entry failed for vpath:%d",
2003 vpath->device_id);
2004 ((struct vxge_mac_addrs *)entry)->state
2005 = VXGE_LL_MAC_ADDR_IN_LIST;
2006 }
2007 }
2008 }
2009 }
2010
2011 return status;
2012}
2013
2014/* reset vpaths */
2015enum vxge_hw_status vxge_reset_all_vpaths(struct vxgedev *vdev)
2016{
2017 int i;
2018 enum vxge_hw_status status = VXGE_HW_OK;
2019
2020 for (i = 0; i < vdev->no_of_vpath; i++)
2021 if (vdev->vpaths[i].handle) {
2022 if (vxge_hw_vpath_reset(vdev->vpaths[i].handle)
2023 == VXGE_HW_OK) {
2024 if (is_vxge_card_up(vdev) &&
2025 vxge_hw_vpath_recover_from_reset(
2026 vdev->vpaths[i].handle)
2027 != VXGE_HW_OK) {
2028 vxge_debug_init(VXGE_ERR,
2029 "vxge_hw_vpath_recover_"
2030 "from_reset failed for vpath: "
2031 "%d", i);
2032 return status;
2033 }
2034 } else {
2035 vxge_debug_init(VXGE_ERR,
2036 "vxge_hw_vpath_reset failed for "
2037 "vpath:%d", i);
2038 return status;
2039 }
2040 }
2041 return status;
2042}
2043
2044/* close vpaths */
2045void vxge_close_vpaths(struct vxgedev *vdev, int index)
2046{
2047 int i;
2048 for (i = index; i < vdev->no_of_vpath; i++) {
2049 if (vdev->vpaths[i].handle && vdev->vpaths[i].is_open) {
2050 vxge_hw_vpath_close(vdev->vpaths[i].handle);
2051 vdev->stats.vpaths_open--;
2052 }
2053 vdev->vpaths[i].is_open = 0;
2054 vdev->vpaths[i].handle = NULL;
2055 }
2056}
2057
2058/* open vpaths */
2059int vxge_open_vpaths(struct vxgedev *vdev)
2060{
2061 enum vxge_hw_status status;
2062 int i;
2063 u32 vp_id = 0;
2064 struct vxge_hw_vpath_attr attr;
2065
2066 for (i = 0; i < vdev->no_of_vpath; i++) {
2067 vxge_assert(vdev->vpaths[i].is_configured);
2068 attr.vp_id = vdev->vpaths[i].device_id;
2069 attr.fifo_attr.callback = vxge_xmit_compl;
2070 attr.fifo_attr.txdl_term = vxge_tx_term;
2071 attr.fifo_attr.per_txdl_space = sizeof(struct vxge_tx_priv);
2072 attr.fifo_attr.userdata = (void *)&vdev->vpaths[i].fifo;
2073
2074 attr.ring_attr.callback = vxge_rx_1b_compl;
2075 attr.ring_attr.rxd_init = vxge_rx_initial_replenish;
2076 attr.ring_attr.rxd_term = vxge_rx_term;
2077 attr.ring_attr.per_rxd_space = sizeof(struct vxge_rx_priv);
2078 attr.ring_attr.userdata = (void *)&vdev->vpaths[i].ring;
2079
2080 vdev->vpaths[i].ring.ndev = vdev->ndev;
2081 vdev->vpaths[i].ring.pdev = vdev->pdev;
2082 status = vxge_hw_vpath_open(vdev->devh, &attr,
2083 &(vdev->vpaths[i].handle));
2084 if (status == VXGE_HW_OK) {
2085 vdev->vpaths[i].fifo.handle =
2086 (struct __vxge_hw_fifo *)attr.fifo_attr.userdata;
2087 vdev->vpaths[i].ring.handle =
2088 (struct __vxge_hw_ring *)attr.ring_attr.userdata;
2089 vdev->vpaths[i].fifo.tx_steering_type =
2090 vdev->config.tx_steering_type;
2091 vdev->vpaths[i].fifo.ndev = vdev->ndev;
2092 vdev->vpaths[i].fifo.pdev = vdev->pdev;
2093 vdev->vpaths[i].fifo.indicate_max_pkts =
2094 vdev->config.fifo_indicate_max_pkts;
2095 vdev->vpaths[i].ring.rx_vector_no = 0;
2096 vdev->vpaths[i].ring.rx_csum = vdev->rx_csum;
2097 vdev->vpaths[i].is_open = 1;
2098 vdev->vp_handles[i] = vdev->vpaths[i].handle;
2099 vdev->vpaths[i].ring.gro_enable =
2100 vdev->config.gro_enable;
2101 vdev->vpaths[i].ring.vlan_tag_strip =
2102 vdev->vlan_tag_strip;
2103 vdev->stats.vpaths_open++;
2104 } else {
2105 vdev->stats.vpath_open_fail++;
2106 vxge_debug_init(VXGE_ERR,
2107 "%s: vpath: %d failed to open "
2108 "with status: %d",
2109 vdev->ndev->name, vdev->vpaths[i].device_id,
2110 status);
2111 vxge_close_vpaths(vdev, 0);
2112 return -EPERM;
2113 }
2114
2115 vp_id =
2116 ((struct __vxge_hw_vpath_handle *)vdev->vpaths[i].handle)->
2117 vpath->vp_id;
2118 vdev->vpaths_deployed |= vxge_mBIT(vp_id);
2119 }
2120 return VXGE_HW_OK;
2121}
2122
2123/*
2124 * vxge_isr_napi
2125 * @irq: the irq of the device.
2126 * @dev_id: a void pointer to the hldev structure of the Titan device
2127 * @ptregs: pointer to the registers pushed on the stack.
2128 *
2129 * This function is the ISR handler of the device when napi is enabled. It
2130 * identifies the reason for the interrupt and calls the relevant service
2131 * routines.
2132 */
2133static irqreturn_t vxge_isr_napi(int irq, void *dev_id)
2134{
2135 struct __vxge_hw_device *hldev = (struct __vxge_hw_device *)dev_id;
2136 struct vxgedev *vdev;
2137 struct net_device *dev;
2138 u64 reason;
2139 enum vxge_hw_status status;
2140
2141 vxge_debug_intr(VXGE_TRACE, "%s:%d", __func__, __LINE__);
2142
2143 dev = hldev->ndev;
2144 vdev = netdev_priv(dev);
2145
2146 if (pci_channel_offline(vdev->pdev))
2147 return IRQ_NONE;
2148
2149 if (unlikely(!is_vxge_card_up(vdev)))
2150 return IRQ_NONE;
2151
2152 status = vxge_hw_device_begin_irq(hldev, vdev->exec_mode,
2153 &reason);
2154 if (status == VXGE_HW_OK) {
2155 vxge_hw_device_mask_all(hldev);
2156
2157 if (reason &
2158 VXGE_HW_TITAN_GENERAL_INT_STATUS_VPATH_TRAFFIC_INT(
2159 vdev->vpaths_deployed >>
2160 (64 - VXGE_HW_MAX_VIRTUAL_PATHS))) {
2161
2162 vxge_hw_device_clear_tx_rx(hldev);
2163 napi_schedule(&vdev->napi);
2164 vxge_debug_intr(VXGE_TRACE,
2165 "%s:%d Exiting...", __func__, __LINE__);
2166 return IRQ_HANDLED;
2167 } else
2168 vxge_hw_device_unmask_all(hldev);
2169 } else if (unlikely((status == VXGE_HW_ERR_VPATH) ||
2170 (status == VXGE_HW_ERR_CRITICAL) ||
2171 (status == VXGE_HW_ERR_FIFO))) {
2172 vxge_hw_device_mask_all(hldev);
2173 vxge_hw_device_flush_io(hldev);
2174 return IRQ_HANDLED;
2175 } else if (unlikely(status == VXGE_HW_ERR_SLOT_FREEZE))
2176 return IRQ_HANDLED;
2177
2178 vxge_debug_intr(VXGE_TRACE, "%s:%d Exiting...", __func__, __LINE__);
2179 return IRQ_NONE;
2180}
2181
2182#ifdef CONFIG_PCI_MSI
2183
2184static irqreturn_t
2185vxge_tx_msix_handle(int irq, void *dev_id)
2186{
2187 struct vxge_fifo *fifo = (struct vxge_fifo *)dev_id;
2188
2189 VXGE_COMPLETE_VPATH_TX(fifo);
2190
2191 return IRQ_HANDLED;
2192}
2193
2194static irqreturn_t
2195vxge_rx_msix_napi_handle(int irq, void *dev_id)
2196{
2197 struct vxge_ring *ring = (struct vxge_ring *)dev_id;
2198
2199 /* MSIX_IDX for Rx is 1 */
2200 vxge_hw_channel_msix_mask((struct __vxge_hw_channel *)ring->handle,
2201 ring->rx_vector_no);
2202
2203 napi_schedule(&ring->napi);
2204 return IRQ_HANDLED;
2205}
2206
2207static irqreturn_t
2208vxge_alarm_msix_handle(int irq, void *dev_id)
2209{
2210 int i;
2211 enum vxge_hw_status status;
2212 struct vxge_vpath *vpath = (struct vxge_vpath *)dev_id;
2213 struct vxgedev *vdev = vpath->vdev;
2214 int alarm_msix_id =
2215 VXGE_HW_VPATH_MSIX_ACTIVE * vdev->no_of_vpath - 2;
2216
2217 for (i = 0; i < vdev->no_of_vpath; i++) {
2218 vxge_hw_vpath_msix_mask(vdev->vpaths[i].handle,
2219 alarm_msix_id);
2220
2221 status = vxge_hw_vpath_alarm_process(vdev->vpaths[i].handle,
2222 vdev->exec_mode);
2223 if (status == VXGE_HW_OK) {
2224
2225 vxge_hw_vpath_msix_unmask(vdev->vpaths[i].handle,
2226 alarm_msix_id);
2227 continue;
2228 }
2229 vxge_debug_intr(VXGE_ERR,
2230 "%s: vxge_hw_vpath_alarm_process failed %x ",
2231 VXGE_DRIVER_NAME, status);
2232 }
2233 return IRQ_HANDLED;
2234}
2235
2236static int vxge_alloc_msix(struct vxgedev *vdev)
2237{
2238 int j, i, ret = 0;
2239 int intr_cnt = 0;
2240 int alarm_msix_id = 0, msix_intr_vect = 0;
2241 vdev->intr_cnt = 0;
2242
2243 /* Tx/Rx MSIX Vectors count */
2244 vdev->intr_cnt = vdev->no_of_vpath * 2;
2245
2246 /* Alarm MSIX Vectors count */
2247 vdev->intr_cnt++;
2248
2249 intr_cnt = (vdev->max_vpath_supported * 2) + 1;
2250 vdev->entries = kzalloc(intr_cnt * sizeof(struct msix_entry),
2251 GFP_KERNEL);
2252 if (!vdev->entries) {
2253 vxge_debug_init(VXGE_ERR,
2254 "%s: memory allocation failed",
2255 VXGE_DRIVER_NAME);
2256 return -ENOMEM;
2257 }
2258
2259 vdev->vxge_entries = kzalloc(intr_cnt * sizeof(struct vxge_msix_entry),
2260 GFP_KERNEL);
2261 if (!vdev->vxge_entries) {
2262 vxge_debug_init(VXGE_ERR, "%s: memory allocation failed",
2263 VXGE_DRIVER_NAME);
2264 kfree(vdev->entries);
2265 return -ENOMEM;
2266 }
2267
2268 /* Last vector in the list is used for alarm */
2269 alarm_msix_id = VXGE_HW_VPATH_MSIX_ACTIVE * vdev->no_of_vpath - 2;
2270 for (i = 0, j = 0; i < vdev->max_vpath_supported; i++) {
2271
2272 msix_intr_vect = i * VXGE_HW_VPATH_MSIX_ACTIVE;
2273
2274 /* Initialize the fifo vector */
2275 vdev->entries[j].entry = msix_intr_vect;
2276 vdev->vxge_entries[j].entry = msix_intr_vect;
2277 vdev->vxge_entries[j].in_use = 0;
2278 j++;
2279
2280 /* Initialize the ring vector */
2281 vdev->entries[j].entry = msix_intr_vect + 1;
2282 vdev->vxge_entries[j].entry = msix_intr_vect + 1;
2283 vdev->vxge_entries[j].in_use = 0;
2284 j++;
2285 }
2286
2287 /* Initialize the alarm vector */
2288 vdev->entries[j].entry = alarm_msix_id;
2289 vdev->vxge_entries[j].entry = alarm_msix_id;
2290 vdev->vxge_entries[j].in_use = 0;
2291
2292 ret = pci_enable_msix(vdev->pdev, vdev->entries, intr_cnt);
2293 /* if driver request exceeeds available irq's, request with a small
2294 * number.
2295 */
2296 if (ret > 0) {
2297 vxge_debug_init(VXGE_ERR,
2298 "%s: MSI-X enable failed for %d vectors, available: %d",
2299 VXGE_DRIVER_NAME, intr_cnt, ret);
2300 vdev->max_vpath_supported = vdev->no_of_vpath;
2301 intr_cnt = (vdev->max_vpath_supported * 2) + 1;
2302
2303 /* Reset the alarm vector setting */
2304 vdev->entries[j].entry = 0;
2305 vdev->vxge_entries[j].entry = 0;
2306
2307 /* Initialize the alarm vector with new setting */
2308 vdev->entries[intr_cnt - 1].entry = alarm_msix_id;
2309 vdev->vxge_entries[intr_cnt - 1].entry = alarm_msix_id;
2310 vdev->vxge_entries[intr_cnt - 1].in_use = 0;
2311
2312 ret = pci_enable_msix(vdev->pdev, vdev->entries, intr_cnt);
2313 if (!ret)
2314 vxge_debug_init(VXGE_ERR,
2315 "%s: MSI-X enabled for %d vectors",
2316 VXGE_DRIVER_NAME, intr_cnt);
2317 }
2318
2319 if (ret) {
2320 vxge_debug_init(VXGE_ERR,
2321 "%s: MSI-X enable failed for %d vectors, ret: %d",
2322 VXGE_DRIVER_NAME, intr_cnt, ret);
2323 kfree(vdev->entries);
2324 kfree(vdev->vxge_entries);
2325 vdev->entries = NULL;
2326 vdev->vxge_entries = NULL;
2327 return -ENODEV;
2328 }
2329 return 0;
2330}
2331
2332static int vxge_enable_msix(struct vxgedev *vdev)
2333{
2334
2335 int i, ret = 0;
2336 enum vxge_hw_status status;
2337 /* 0 - Tx, 1 - Rx */
2338 int tim_msix_id[4];
2339 int alarm_msix_id = 0, msix_intr_vect = 0;;
2340 vdev->intr_cnt = 0;
2341
2342 /* allocate msix vectors */
2343 ret = vxge_alloc_msix(vdev);
2344 if (!ret) {
2345 /* Last vector in the list is used for alarm */
2346 alarm_msix_id =
2347 VXGE_HW_VPATH_MSIX_ACTIVE * vdev->no_of_vpath - 2;
2348 for (i = 0; i < vdev->no_of_vpath; i++) {
2349
2350 /* If fifo or ring are not enabled
2351 the MSIX vector for that should be set to 0
2352 Hence initializeing this array to all 0s.
2353 */
2354 memset(tim_msix_id, 0, sizeof(tim_msix_id));
2355 msix_intr_vect = i * VXGE_HW_VPATH_MSIX_ACTIVE;
2356 tim_msix_id[0] = msix_intr_vect;
2357
2358 tim_msix_id[1] = msix_intr_vect + 1;
2359 vdev->vpaths[i].ring.rx_vector_no = tim_msix_id[1];
2360
2361 status = vxge_hw_vpath_msix_set(
2362 vdev->vpaths[i].handle,
2363 tim_msix_id, alarm_msix_id);
2364 if (status != VXGE_HW_OK) {
2365 vxge_debug_init(VXGE_ERR,
2366 "vxge_hw_vpath_msix_set "
2367 "failed with status : %x", status);
2368 kfree(vdev->entries);
2369 kfree(vdev->vxge_entries);
2370 pci_disable_msix(vdev->pdev);
2371 return -ENODEV;
2372 }
2373 }
2374 }
2375
2376 return ret;
2377}
2378
2379static void vxge_rem_msix_isr(struct vxgedev *vdev)
2380{
2381 int intr_cnt;
2382
2383 for (intr_cnt = 0; intr_cnt < (vdev->max_vpath_supported * 2 + 1);
2384 intr_cnt++) {
2385 if (vdev->vxge_entries[intr_cnt].in_use) {
2386 synchronize_irq(vdev->entries[intr_cnt].vector);
2387 free_irq(vdev->entries[intr_cnt].vector,
2388 vdev->vxge_entries[intr_cnt].arg);
2389 vdev->vxge_entries[intr_cnt].in_use = 0;
2390 }
2391 }
2392
2393 kfree(vdev->entries);
2394 kfree(vdev->vxge_entries);
2395 vdev->entries = NULL;
2396 vdev->vxge_entries = NULL;
2397
2398 if (vdev->config.intr_type == MSI_X)
2399 pci_disable_msix(vdev->pdev);
2400}
2401#endif
2402
2403static void vxge_rem_isr(struct vxgedev *vdev)
2404{
2405 struct __vxge_hw_device *hldev;
2406 hldev = (struct __vxge_hw_device *) pci_get_drvdata(vdev->pdev);
2407
2408#ifdef CONFIG_PCI_MSI
2409 if (vdev->config.intr_type == MSI_X) {
2410 vxge_rem_msix_isr(vdev);
2411 } else
2412#endif
2413 if (vdev->config.intr_type == INTA) {
2414 synchronize_irq(vdev->pdev->irq);
2415 free_irq(vdev->pdev->irq, hldev);
2416 }
2417}
2418
2419static int vxge_add_isr(struct vxgedev *vdev)
2420{
2421 int ret = 0;
2422 struct __vxge_hw_device *hldev =
2423 (struct __vxge_hw_device *) pci_get_drvdata(vdev->pdev);
2424#ifdef CONFIG_PCI_MSI
2425 int vp_idx = 0, intr_idx = 0, intr_cnt = 0, msix_idx = 0, irq_req = 0;
2426 u64 function_mode = vdev->config.device_hw_info.function_mode;
2427 int pci_fun = PCI_FUNC(vdev->pdev->devfn);
2428
2429 if (vdev->config.intr_type == MSI_X)
2430 ret = vxge_enable_msix(vdev);
2431
2432 if (ret) {
2433 vxge_debug_init(VXGE_ERR,
2434 "%s: Enabling MSI-X Failed", VXGE_DRIVER_NAME);
2435 if ((function_mode == VXGE_HW_FUNCTION_MODE_MULTI_FUNCTION) &&
2436 test_and_set_bit(__VXGE_STATE_CARD_UP,
2437 &driver_config->inta_dev_open))
2438 return VXGE_HW_FAIL;
2439 else {
2440 vxge_debug_init(VXGE_ERR,
2441 "%s: Defaulting to INTA", VXGE_DRIVER_NAME);
2442 vdev->config.intr_type = INTA;
2443 vxge_hw_device_set_intr_type(vdev->devh,
2444 VXGE_HW_INTR_MODE_IRQLINE);
2445 vxge_close_vpaths(vdev, 1);
2446 vdev->no_of_vpath = 1;
2447 vdev->stats.vpaths_open = 1;
2448 }
2449 }
2450
2451 if (vdev->config.intr_type == MSI_X) {
2452 for (intr_idx = 0;
2453 intr_idx < (vdev->no_of_vpath *
2454 VXGE_HW_VPATH_MSIX_ACTIVE); intr_idx++) {
2455
2456 msix_idx = intr_idx % VXGE_HW_VPATH_MSIX_ACTIVE;
2457 irq_req = 0;
2458
2459 switch (msix_idx) {
2460 case 0:
2461 snprintf(vdev->desc[intr_cnt], VXGE_INTR_STRLEN,
2462 "%s:vxge fn: %d vpath: %d Tx MSI-X: %d",
2463 vdev->ndev->name, pci_fun, vp_idx,
2464 vdev->entries[intr_cnt].entry);
2465 ret = request_irq(
2466 vdev->entries[intr_cnt].vector,
2467 vxge_tx_msix_handle, 0,
2468 vdev->desc[intr_cnt],
2469 &vdev->vpaths[vp_idx].fifo);
2470 vdev->vxge_entries[intr_cnt].arg =
2471 &vdev->vpaths[vp_idx].fifo;
2472 irq_req = 1;
2473 break;
2474 case 1:
2475 snprintf(vdev->desc[intr_cnt], VXGE_INTR_STRLEN,
2476 "%s:vxge fn: %d vpath: %d Rx MSI-X: %d",
2477 vdev->ndev->name, pci_fun, vp_idx,
2478 vdev->entries[intr_cnt].entry);
2479 ret = request_irq(
2480 vdev->entries[intr_cnt].vector,
2481 vxge_rx_msix_napi_handle,
2482 0,
2483 vdev->desc[intr_cnt],
2484 &vdev->vpaths[vp_idx].ring);
2485 vdev->vxge_entries[intr_cnt].arg =
2486 &vdev->vpaths[vp_idx].ring;
2487 irq_req = 1;
2488 break;
2489 }
2490
2491 if (ret) {
2492 vxge_debug_init(VXGE_ERR,
2493 "%s: MSIX - %d Registration failed",
2494 vdev->ndev->name, intr_cnt);
2495 vxge_rem_msix_isr(vdev);
2496 if ((function_mode ==
2497 VXGE_HW_FUNCTION_MODE_MULTI_FUNCTION) &&
2498 test_and_set_bit(__VXGE_STATE_CARD_UP,
2499 &driver_config->inta_dev_open))
2500 return VXGE_HW_FAIL;
2501 else {
2502 vxge_hw_device_set_intr_type(
2503 vdev->devh,
2504 VXGE_HW_INTR_MODE_IRQLINE);
2505 vdev->config.intr_type = INTA;
2506 vxge_debug_init(VXGE_ERR,
2507 "%s: Defaulting to INTA"
2508 , vdev->ndev->name);
2509 vxge_close_vpaths(vdev, 1);
2510 vdev->no_of_vpath = 1;
2511 vdev->stats.vpaths_open = 1;
2512 goto INTA_MODE;
2513 }
2514 }
2515
2516 if (irq_req) {
2517 /* We requested for this msix interrupt */
2518 vdev->vxge_entries[intr_cnt].in_use = 1;
2519 vxge_hw_vpath_msix_unmask(
2520 vdev->vpaths[vp_idx].handle,
2521 intr_idx);
2522 intr_cnt++;
2523 }
2524
2525 /* Point to next vpath handler */
2526 if (((intr_idx + 1) % VXGE_HW_VPATH_MSIX_ACTIVE == 0)
2527 && (vp_idx < (vdev->no_of_vpath - 1)))
2528 vp_idx++;
2529 }
2530
2531 intr_cnt = vdev->max_vpath_supported * 2;
2532 snprintf(vdev->desc[intr_cnt], VXGE_INTR_STRLEN,
2533 "%s:vxge Alarm fn: %d MSI-X: %d",
2534 vdev->ndev->name, pci_fun,
2535 vdev->entries[intr_cnt].entry);
2536 /* For Alarm interrupts */
2537 ret = request_irq(vdev->entries[intr_cnt].vector,
2538 vxge_alarm_msix_handle, 0,
2539 vdev->desc[intr_cnt],
2540 &vdev->vpaths[vp_idx]);
2541 if (ret) {
2542 vxge_debug_init(VXGE_ERR,
2543 "%s: MSIX - %d Registration failed",
2544 vdev->ndev->name, intr_cnt);
2545 vxge_rem_msix_isr(vdev);
2546 if ((function_mode ==
2547 VXGE_HW_FUNCTION_MODE_MULTI_FUNCTION) &&
2548 test_and_set_bit(__VXGE_STATE_CARD_UP,
2549 &driver_config->inta_dev_open))
2550 return VXGE_HW_FAIL;
2551 else {
2552 vxge_hw_device_set_intr_type(vdev->devh,
2553 VXGE_HW_INTR_MODE_IRQLINE);
2554 vdev->config.intr_type = INTA;
2555 vxge_debug_init(VXGE_ERR,
2556 "%s: Defaulting to INTA",
2557 vdev->ndev->name);
2558 vxge_close_vpaths(vdev, 1);
2559 vdev->no_of_vpath = 1;
2560 vdev->stats.vpaths_open = 1;
2561 goto INTA_MODE;
2562 }
2563 }
2564
2565 vxge_hw_vpath_msix_unmask(vdev->vpaths[vp_idx].handle,
2566 intr_idx - 2);
2567 vdev->vxge_entries[intr_cnt].in_use = 1;
2568 vdev->vxge_entries[intr_cnt].arg = &vdev->vpaths[vp_idx];
2569 }
2570INTA_MODE:
2571#endif
2572 snprintf(vdev->desc[0], VXGE_INTR_STRLEN, "%s:vxge", vdev->ndev->name);
2573
2574 if (vdev->config.intr_type == INTA) {
2575 ret = request_irq((int) vdev->pdev->irq,
2576 vxge_isr_napi,
2577 IRQF_SHARED, vdev->desc[0], hldev);
2578 if (ret) {
2579 vxge_debug_init(VXGE_ERR,
2580 "%s %s-%d: ISR registration failed",
2581 VXGE_DRIVER_NAME, "IRQ", vdev->pdev->irq);
2582 return -ENODEV;
2583 }
2584 vxge_debug_init(VXGE_TRACE,
2585 "new %s-%d line allocated",
2586 "IRQ", vdev->pdev->irq);
2587 }
2588
2589 return VXGE_HW_OK;
2590}
2591
2592static void vxge_poll_vp_reset(unsigned long data)
2593{
2594 struct vxgedev *vdev = (struct vxgedev *)data;
2595 int i, j = 0;
2596
2597 for (i = 0; i < vdev->no_of_vpath; i++) {
2598 if (test_bit(i, &vdev->vp_reset)) {
2599 vxge_reset_vpath(vdev, i);
2600 j++;
2601 }
2602 }
2603 if (j && (vdev->config.intr_type != MSI_X)) {
2604 vxge_hw_device_unmask_all(vdev->devh);
2605 vxge_hw_device_flush_io(vdev->devh);
2606 }
2607
2608 mod_timer(&vdev->vp_reset_timer, jiffies + HZ / 2);
2609}
2610
2611static void vxge_poll_vp_lockup(unsigned long data)
2612{
2613 struct vxgedev *vdev = (struct vxgedev *)data;
2614 int i;
2615 struct vxge_ring *ring;
2616 enum vxge_hw_status status = VXGE_HW_OK;
2617
2618 for (i = 0; i < vdev->no_of_vpath; i++) {
2619 ring = &vdev->vpaths[i].ring;
2620 /* Did this vpath received any packets */
2621 if (ring->stats.prev_rx_frms == ring->stats.rx_frms) {
2622 status = vxge_hw_vpath_check_leak(ring->handle);
2623
2624 /* Did it received any packets last time */
2625 if ((VXGE_HW_FAIL == status) &&
2626 (VXGE_HW_FAIL == ring->last_status)) {
2627
2628 /* schedule vpath reset */
2629 if (!test_and_set_bit(i, &vdev->vp_reset)) {
2630
2631 /* disable interrupts for this vpath */
2632 vxge_vpath_intr_disable(vdev, i);
2633
2634 /* stop the queue for this vpath */
2635 vxge_stop_tx_queue(&vdev->vpaths[i].
2636 fifo);
2637 continue;
2638 }
2639 }
2640 }
2641 ring->stats.prev_rx_frms = ring->stats.rx_frms;
2642 ring->last_status = status;
2643 }
2644
2645 /* Check every 1 milli second */
2646 mod_timer(&vdev->vp_lockup_timer, jiffies + HZ / 1000);
2647}
2648
2649/**
2650 * vxge_open
2651 * @dev: pointer to the device structure.
2652 *
2653 * This function is the open entry point of the driver. It mainly calls a
2654 * function to allocate Rx buffers and inserts them into the buffer
2655 * descriptors and then enables the Rx part of the NIC.
2656 * Return value: '0' on success and an appropriate (-)ve integer as
2657 * defined in errno.h file on failure.
2658 */
2659int
2660vxge_open(struct net_device *dev)
2661{
2662 enum vxge_hw_status status;
2663 struct vxgedev *vdev;
2664 struct __vxge_hw_device *hldev;
2665 int ret = 0;
2666 int i;
2667 u64 val64, function_mode;
2668 vxge_debug_entryexit(VXGE_TRACE,
2669 "%s: %s:%d", dev->name, __func__, __LINE__);
2670
2671 vdev = (struct vxgedev *)netdev_priv(dev);
2672 hldev = (struct __vxge_hw_device *) pci_get_drvdata(vdev->pdev);
2673 function_mode = vdev->config.device_hw_info.function_mode;
2674
2675 /* make sure you have link off by default every time Nic is
2676 * initialized */
2677 netif_carrier_off(dev);
2678
2679 /* Check for another device already opn with INTA */
2680 if ((function_mode == VXGE_HW_FUNCTION_MODE_MULTI_FUNCTION) &&
2681 test_bit(__VXGE_STATE_CARD_UP, &driver_config->inta_dev_open)) {
2682 ret = -EPERM;
2683 goto out0;
2684 }
2685
2686 /* Open VPATHs */
2687 status = vxge_open_vpaths(vdev);
2688 if (status != VXGE_HW_OK) {
2689 vxge_debug_init(VXGE_ERR,
2690 "%s: fatal: Vpath open failed", vdev->ndev->name);
2691 ret = -EPERM;
2692 goto out0;
2693 }
2694
2695 vdev->mtu = dev->mtu;
2696
2697 status = vxge_add_isr(vdev);
2698 if (status != VXGE_HW_OK) {
2699 vxge_debug_init(VXGE_ERR,
2700 "%s: fatal: ISR add failed", dev->name);
2701 ret = -EPERM;
2702 goto out1;
2703 }
2704
2705
2706 if (vdev->config.intr_type != MSI_X) {
2707 netif_napi_add(dev, &vdev->napi, vxge_poll_inta,
2708 vdev->config.napi_weight);
2709 napi_enable(&vdev->napi);
2710 } else {
2711 for (i = 0; i < vdev->no_of_vpath; i++) {
2712 netif_napi_add(dev, &vdev->vpaths[i].ring.napi,
2713 vxge_poll_msix, vdev->config.napi_weight);
2714 napi_enable(&vdev->vpaths[i].ring.napi);
2715 }
2716 }
2717
2718 /* configure RTH */
2719 if (vdev->config.rth_steering) {
2720 status = vxge_rth_configure(vdev);
2721 if (status != VXGE_HW_OK) {
2722 vxge_debug_init(VXGE_ERR,
2723 "%s: fatal: RTH configuration failed",
2724 dev->name);
2725 ret = -EPERM;
2726 goto out2;
2727 }
2728 }
2729
2730 for (i = 0; i < vdev->no_of_vpath; i++) {
2731 /* set initial mtu before enabling the device */
2732 status = vxge_hw_vpath_mtu_set(vdev->vpaths[i].handle,
2733 vdev->mtu);
2734 if (status != VXGE_HW_OK) {
2735 vxge_debug_init(VXGE_ERR,
2736 "%s: fatal: can not set new MTU", dev->name);
2737 ret = -EPERM;
2738 goto out2;
2739 }
2740 }
2741
2742 VXGE_DEVICE_DEBUG_LEVEL_SET(VXGE_TRACE, VXGE_COMPONENT_LL, vdev);
2743 vxge_debug_init(vdev->level_trace,
2744 "%s: MTU is %d", vdev->ndev->name, vdev->mtu);
2745 VXGE_DEVICE_DEBUG_LEVEL_SET(VXGE_ERR, VXGE_COMPONENT_LL, vdev);
2746
2747 /* Reprogram the DA table with populated mac addresses */
2748 for (i = 0; i < vdev->no_of_vpath; i++) {
2749 vxge_restore_vpath_mac_addr(&vdev->vpaths[i]);
2750 vxge_restore_vpath_vid_table(&vdev->vpaths[i]);
2751 }
2752
2753 /* Enable vpath to sniff all unicast/multicast traffic that not
2754 * addressed to them. We allow promiscous mode for PF only
2755 */
2756
2757 val64 = 0;
2758 for (i = 0; i < VXGE_HW_MAX_VIRTUAL_PATHS; i++)
2759 val64 |= VXGE_HW_RXMAC_AUTHORIZE_ALL_ADDR_VP(i);
2760
2761 vxge_hw_mgmt_reg_write(vdev->devh,
2762 vxge_hw_mgmt_reg_type_mrpcim,
2763 0,
2764 (ulong)offsetof(struct vxge_hw_mrpcim_reg,
2765 rxmac_authorize_all_addr),
2766 val64);
2767
2768 vxge_hw_mgmt_reg_write(vdev->devh,
2769 vxge_hw_mgmt_reg_type_mrpcim,
2770 0,
2771 (ulong)offsetof(struct vxge_hw_mrpcim_reg,
2772 rxmac_authorize_all_vid),
2773 val64);
2774
2775 vxge_set_multicast(dev);
2776
2777 /* Enabling Bcast and mcast for all vpath */
2778 for (i = 0; i < vdev->no_of_vpath; i++) {
2779 status = vxge_hw_vpath_bcast_enable(vdev->vpaths[i].handle);
2780 if (status != VXGE_HW_OK)
2781 vxge_debug_init(VXGE_ERR,
2782 "%s : Can not enable bcast for vpath "
2783 "id %d", dev->name, i);
2784 if (vdev->config.addr_learn_en) {
2785 status =
2786 vxge_hw_vpath_mcast_enable(vdev->vpaths[i].handle);
2787 if (status != VXGE_HW_OK)
2788 vxge_debug_init(VXGE_ERR,
2789 "%s : Can not enable mcast for vpath "
2790 "id %d", dev->name, i);
2791 }
2792 }
2793
2794 vxge_hw_device_setpause_data(vdev->devh, 0,
2795 vdev->config.tx_pause_enable,
2796 vdev->config.rx_pause_enable);
2797
2798 if (vdev->vp_reset_timer.function == NULL)
2799 vxge_os_timer(vdev->vp_reset_timer,
2800 vxge_poll_vp_reset, vdev, (HZ/2));
2801
2802 if (vdev->vp_lockup_timer.function == NULL)
2803 vxge_os_timer(vdev->vp_lockup_timer,
2804 vxge_poll_vp_lockup, vdev, (HZ/2));
2805
2806 set_bit(__VXGE_STATE_CARD_UP, &vdev->state);
2807
2808 smp_wmb();
2809
2810 if (vxge_hw_device_link_state_get(vdev->devh) == VXGE_HW_LINK_UP) {
2811 netif_carrier_on(vdev->ndev);
2812 printk(KERN_NOTICE "%s: Link Up\n", vdev->ndev->name);
2813 vdev->stats.link_up++;
2814 }
2815
2816 vxge_hw_device_intr_enable(vdev->devh);
2817
2818 smp_wmb();
2819
2820 for (i = 0; i < vdev->no_of_vpath; i++) {
2821 vxge_hw_vpath_enable(vdev->vpaths[i].handle);
2822 smp_wmb();
2823 vxge_hw_vpath_rx_doorbell_init(vdev->vpaths[i].handle);
2824 }
2825
2826 vxge_start_all_tx_queue(vdev);
2827 goto out0;
2828
2829out2:
2830 vxge_rem_isr(vdev);
2831
2832 /* Disable napi */
2833 if (vdev->config.intr_type != MSI_X)
2834 napi_disable(&vdev->napi);
2835 else {
2836 for (i = 0; i < vdev->no_of_vpath; i++)
2837 napi_disable(&vdev->vpaths[i].ring.napi);
2838 }
2839
2840out1:
2841 vxge_close_vpaths(vdev, 0);
2842out0:
2843 vxge_debug_entryexit(VXGE_TRACE,
2844 "%s: %s:%d Exiting...",
2845 dev->name, __func__, __LINE__);
2846 return ret;
2847}
2848
2849/* Loop throught the mac address list and delete all the entries */
2850void vxge_free_mac_add_list(struct vxge_vpath *vpath)
2851{
2852
2853 struct list_head *entry, *next;
2854 if (list_empty(&vpath->mac_addr_list))
2855 return;
2856
2857 list_for_each_safe(entry, next, &vpath->mac_addr_list) {
2858 list_del(entry);
2859 kfree((struct vxge_mac_addrs *)entry);
2860 }
2861}
2862
2863static void vxge_napi_del_all(struct vxgedev *vdev)
2864{
2865 int i;
2866 if (vdev->config.intr_type != MSI_X)
2867 netif_napi_del(&vdev->napi);
2868 else {
2869 for (i = 0; i < vdev->no_of_vpath; i++)
2870 netif_napi_del(&vdev->vpaths[i].ring.napi);
2871 }
2872 return;
2873}
2874
2875int do_vxge_close(struct net_device *dev, int do_io)
2876{
2877 enum vxge_hw_status status;
2878 struct vxgedev *vdev;
2879 struct __vxge_hw_device *hldev;
2880 int i;
2881 u64 val64, vpath_vector;
2882 vxge_debug_entryexit(VXGE_TRACE, "%s: %s:%d",
2883 dev->name, __func__, __LINE__);
2884
2885 vdev = (struct vxgedev *)netdev_priv(dev);
2886 hldev = (struct __vxge_hw_device *) pci_get_drvdata(vdev->pdev);
2887
bd9ee680
SH		 2888 if (unlikely(!is_vxge_card_up(vdev)))
2889 return 0;
2890
703da5a1
RV		 2891 /* If vxge_handle_crit_err task is executing,
2892 * wait till it completes. */
2893 while (test_and_set_bit(__VXGE_STATE_RESET_CARD, &vdev->state))
2894 msleep(50);
2895
2896 clear_bit(__VXGE_STATE_CARD_UP, &vdev->state);
2897 if (do_io) {
2898 /* Put the vpath back in normal mode */
2899 vpath_vector = vxge_mBIT(vdev->vpaths[0].device_id);
2900 status = vxge_hw_mgmt_reg_read(vdev->devh,
2901 vxge_hw_mgmt_reg_type_mrpcim,
2902 0,
2903 (ulong)offsetof(
2904 struct vxge_hw_mrpcim_reg,
2905 rts_mgr_cbasin_cfg),
2906 &val64);
2907
2908 if (status == VXGE_HW_OK) {
2909 val64 &= ~vpath_vector;
2910 status = vxge_hw_mgmt_reg_write(vdev->devh,
2911 vxge_hw_mgmt_reg_type_mrpcim,
2912 0,
2913 (ulong)offsetof(
2914 struct vxge_hw_mrpcim_reg,
2915 rts_mgr_cbasin_cfg),
2916 val64);
2917 }
2918
2919 /* Remove the function 0 from promiscous mode */
2920 vxge_hw_mgmt_reg_write(vdev->devh,
2921 vxge_hw_mgmt_reg_type_mrpcim,
2922 0,
2923 (ulong)offsetof(struct vxge_hw_mrpcim_reg,
2924 rxmac_authorize_all_addr),
2925 0);
2926
2927 vxge_hw_mgmt_reg_write(vdev->devh,
2928 vxge_hw_mgmt_reg_type_mrpcim,
2929 0,
2930 (ulong)offsetof(struct vxge_hw_mrpcim_reg,
2931 rxmac_authorize_all_vid),
2932 0);
2933
2934 smp_wmb();
2935 }
2936 del_timer_sync(&vdev->vp_lockup_timer);
2937
2938 del_timer_sync(&vdev->vp_reset_timer);
2939
2940 /* Disable napi */
2941 if (vdev->config.intr_type != MSI_X)
2942 napi_disable(&vdev->napi);
2943 else {
2944 for (i = 0; i < vdev->no_of_vpath; i++)
2945 napi_disable(&vdev->vpaths[i].ring.napi);
2946 }
2947
2948 netif_carrier_off(vdev->ndev);
2949 printk(KERN_NOTICE "%s: Link Down\n", vdev->ndev->name);
2950 vxge_stop_all_tx_queue(vdev);
2951
2952 /* Note that at this point xmit() is stopped by upper layer */
2953 if (do_io)
2954 vxge_hw_device_intr_disable(vdev->devh);
2955
2956 mdelay(1000);
2957
2958 vxge_rem_isr(vdev);
2959
2960 vxge_napi_del_all(vdev);
2961
2962 if (do_io)
2963 vxge_reset_all_vpaths(vdev);
2964
2965 vxge_close_vpaths(vdev, 0);
2966
2967 vxge_debug_entryexit(VXGE_TRACE,
2968 "%s: %s:%d Exiting...", dev->name, __func__, __LINE__);
2969
2970 clear_bit(__VXGE_STATE_CARD_UP, &driver_config->inta_dev_open);
2971 clear_bit(__VXGE_STATE_RESET_CARD, &vdev->state);
2972
2973 return 0;
2974}
2975
2976/**
2977 * vxge_close
2978 * @dev: device pointer.
2979 *
2980 * This is the stop entry point of the driver. It needs to undo exactly
2981 * whatever was done by the open entry point, thus it's usually referred to
2982 * as the close function.Among other things this function mainly stops the
2983 * Rx side of the NIC and frees all the Rx buffers in the Rx rings.
2984 * Return value: '0' on success and an appropriate (-)ve integer as
2985 * defined in errno.h file on failure.
2986 */
2987int
2988vxge_close(struct net_device *dev)
2989{
2990 do_vxge_close(dev, 1);
2991 return 0;
2992}
2993
2994/**
2995 * vxge_change_mtu
2996 * @dev: net device pointer.
2997 * @new_mtu :the new MTU size for the device.
2998 *
2999 * A driver entry point to change MTU size for the device. Before changing
3000 * the MTU the device must be stopped.
3001 */
3002static int vxge_change_mtu(struct net_device *dev, int new_mtu)
3003{
3004 struct vxgedev *vdev = netdev_priv(dev);
3005
3006 vxge_debug_entryexit(vdev->level_trace,
3007 "%s:%d", __func__, __LINE__);
3008 if ((new_mtu < VXGE_HW_MIN_MTU) || (new_mtu > VXGE_HW_MAX_MTU)) {
3009 vxge_debug_init(vdev->level_err,
3010 "%s: mtu size is invalid", dev->name);
3011 return -EPERM;
3012 }
3013
3014 /* check if device is down already */
3015 if (unlikely(!is_vxge_card_up(vdev))) {
3016 /* just store new value, will use later on open() */
3017 dev->mtu = new_mtu;
3018 vxge_debug_init(vdev->level_err,
3019 "%s", "device is down on MTU change");
3020 return 0;
3021 }
3022
3023 vxge_debug_init(vdev->level_trace,
3024 "trying to apply new MTU %d", new_mtu);
3025
3026 if (vxge_close(dev))
3027 return -EIO;
3028
3029 dev->mtu = new_mtu;
3030 vdev->mtu = new_mtu;
3031
3032 if (vxge_open(dev))
3033 return -EIO;
3034
3035 vxge_debug_init(vdev->level_trace,
3036 "%s: MTU changed to %d", vdev->ndev->name, new_mtu);
3037
3038 vxge_debug_entryexit(vdev->level_trace,
3039 "%s:%d Exiting...", __func__, __LINE__);
3040
3041 return 0;
3042}
3043
3044/**
3045 * vxge_get_stats
3046 * @dev: pointer to the device structure
3047 *
3048 * Updates the device statistics structure. This function updates the device
3049 * statistics structure in the net_device structure and returns a pointer
3050 * to the same.
3051 */
3052static struct net_device_stats *
3053vxge_get_stats(struct net_device *dev)
3054{
3055 struct vxgedev *vdev;
3056 struct net_device_stats *net_stats;
3057 int k;
3058
3059 vdev = netdev_priv(dev);
3060
3061 net_stats = &vdev->stats.net_stats;
3062
3063 memset(net_stats, 0, sizeof(struct net_device_stats));
3064
3065 for (k = 0; k < vdev->no_of_vpath; k++) {
3066 net_stats->rx_packets += vdev->vpaths[k].ring.stats.rx_frms;
3067 net_stats->rx_bytes += vdev->vpaths[k].ring.stats.rx_bytes;
3068 net_stats->rx_errors += vdev->vpaths[k].ring.stats.rx_errors;
3069 net_stats->multicast += vdev->vpaths[k].ring.stats.rx_mcast;
3070 net_stats->rx_dropped +=
3071 vdev->vpaths[k].ring.stats.rx_dropped;
3072
3073 net_stats->tx_packets += vdev->vpaths[k].fifo.stats.tx_frms;
3074 net_stats->tx_bytes += vdev->vpaths[k].fifo.stats.tx_bytes;
3075 net_stats->tx_errors += vdev->vpaths[k].fifo.stats.tx_errors;
3076 }
3077
3078 return net_stats;
3079}
3080
3081/**
3082 * vxge_ioctl
3083 * @dev: Device pointer.
3084 * @ifr: An IOCTL specific structure, that can contain a pointer to
3085 * a proprietary structure used to pass information to the driver.
3086 * @cmd: This is used to distinguish between the different commands that
3087 * can be passed to the IOCTL functions.
3088 *
3089 * Entry point for the Ioctl.
3090 */
3091static int vxge_ioctl(struct net_device *dev, struct ifreq *rq, int cmd)
3092{
3093 return -EOPNOTSUPP;
3094}
3095
3096/**
3097 * vxge_tx_watchdog
3098 * @dev: pointer to net device structure
3099 *
3100 * Watchdog for transmit side.
3101 * This function is triggered if the Tx Queue is stopped
3102 * for a pre-defined amount of time when the Interface is still up.
3103 */
3104static void
3105vxge_tx_watchdog(struct net_device *dev)
3106{
3107 struct vxgedev *vdev;
3108
3109 vxge_debug_entryexit(VXGE_TRACE, "%s:%d", __func__, __LINE__);
3110
3111 vdev = (struct vxgedev *)netdev_priv(dev);
3112
3113 vdev->cric_err_event = VXGE_HW_EVENT_RESET_START;
3114
3115 vxge_reset(vdev);
3116 vxge_debug_entryexit(VXGE_TRACE,
3117 "%s:%d Exiting...", __func__, __LINE__);
3118}
3119
3120/**
3121 * vxge_vlan_rx_register
3122 * @dev: net device pointer.
3123 * @grp: vlan group
3124 *
3125 * Vlan group registration
3126 */
3127static void
3128vxge_vlan_rx_register(struct net_device *dev, struct vlan_group *grp)
3129{
3130 struct vxgedev *vdev;
3131 struct vxge_vpath *vpath;
3132 int vp;
3133 u64 vid;
3134 enum vxge_hw_status status;
3135 int i;
3136
3137 vxge_debug_entryexit(VXGE_TRACE, "%s:%d", __func__, __LINE__);
3138
3139 vdev = (struct vxgedev *)netdev_priv(dev);
3140
3141 vpath = &vdev->vpaths[0];
3142 if ((NULL == grp) && (vpath->is_open)) {
3143 /* Get the first vlan */
3144 status = vxge_hw_vpath_vid_get(vpath->handle, &vid);
3145
3146 while (status == VXGE_HW_OK) {
3147
3148 /* Delete this vlan from the vid table */
3149 for (vp = 0; vp < vdev->no_of_vpath; vp++) {
3150 vpath = &vdev->vpaths[vp];
3151 if (!vpath->is_open)
3152 continue;
3153
3154 vxge_hw_vpath_vid_delete(vpath->handle, vid);
3155 }
3156
3157 /* Get the next vlan to be deleted */
3158 vpath = &vdev->vpaths[0];
3159 status = vxge_hw_vpath_vid_get(vpath->handle, &vid);
3160 }
3161 }
3162
3163 vdev->vlgrp = grp;
3164
3165 for (i = 0; i < vdev->no_of_vpath; i++) {
3166 if (vdev->vpaths[i].is_configured)
3167 vdev->vpaths[i].ring.vlgrp = grp;
3168 }
3169
3170 vxge_debug_entryexit(VXGE_TRACE,
3171 "%s:%d Exiting...", __func__, __LINE__);
3172}
3173
3174/**
3175 * vxge_vlan_rx_add_vid
3176 * @dev: net device pointer.
3177 * @vid: vid
3178 *
3179 * Add the vlan id to the devices vlan id table
3180 */
3181static void
3182vxge_vlan_rx_add_vid(struct net_device *dev, unsigned short vid)
3183{
3184 struct vxgedev *vdev;
3185 struct vxge_vpath *vpath;
3186 int vp_id;
3187
3188 vdev = (struct vxgedev *)netdev_priv(dev);
3189
3190 /* Add these vlan to the vid table */
3191 for (vp_id = 0; vp_id < vdev->no_of_vpath; vp_id++) {
3192 vpath = &vdev->vpaths[vp_id];
3193 if (!vpath->is_open)
3194 continue;
3195 vxge_hw_vpath_vid_add(vpath->handle, vid);
3196 }
3197}
3198
3199/**
3200 * vxge_vlan_rx_add_vid
3201 * @dev: net device pointer.
3202 * @vid: vid
3203 *
3204 * Remove the vlan id from the device's vlan id table
3205 */
3206static void
3207vxge_vlan_rx_kill_vid(struct net_device *dev, unsigned short vid)
3208{
3209 struct vxgedev *vdev;
3210 struct vxge_vpath *vpath;
3211 int vp_id;
3212
3213 vxge_debug_entryexit(VXGE_TRACE, "%s:%d", __func__, __LINE__);
3214
3215 vdev = (struct vxgedev *)netdev_priv(dev);
3216
3217 vlan_group_set_device(vdev->vlgrp, vid, NULL);
3218
3219 /* Delete this vlan from the vid table */
3220 for (vp_id = 0; vp_id < vdev->no_of_vpath; vp_id++) {
3221 vpath = &vdev->vpaths[vp_id];
3222 if (!vpath->is_open)
3223 continue;
3224 vxge_hw_vpath_vid_delete(vpath->handle, vid);
3225 }
3226 vxge_debug_entryexit(VXGE_TRACE,
3227 "%s:%d Exiting...", __func__, __LINE__);
3228}
3229
3230static const struct net_device_ops vxge_netdev_ops = {
3231 .ndo_open = vxge_open,
3232 .ndo_stop = vxge_close,
3233 .ndo_get_stats = vxge_get_stats,
3234 .ndo_start_xmit = vxge_xmit,
3235 .ndo_validate_addr = eth_validate_addr,
3236 .ndo_set_multicast_list = vxge_set_multicast,
3237
3238 .ndo_do_ioctl = vxge_ioctl,
3239
3240 .ndo_set_mac_address = vxge_set_mac_addr,
3241 .ndo_change_mtu = vxge_change_mtu,
3242 .ndo_vlan_rx_register = vxge_vlan_rx_register,
3243 .ndo_vlan_rx_kill_vid = vxge_vlan_rx_kill_vid,
3244 .ndo_vlan_rx_add_vid = vxge_vlan_rx_add_vid,
3245
3246 .ndo_tx_timeout = vxge_tx_watchdog,
3247#ifdef CONFIG_NET_POLL_CONTROLLER
3248 .ndo_poll_controller = vxge_netpoll,
3249#endif
3250};
3251
3252int __devinit vxge_device_register(struct __vxge_hw_device *hldev,
3253 struct vxge_config *config,
3254 int high_dma, int no_of_vpath,
3255 struct vxgedev **vdev_out)
3256{
3257 struct net_device *ndev;
3258 enum vxge_hw_status status = VXGE_HW_OK;
3259 struct vxgedev *vdev;
3260 int i, ret = 0, no_of_queue = 1;
3261 u64 stat;
3262
3263 *vdev_out = NULL;
3264 if (config->tx_steering_type == TX_MULTIQ_STEERING)
3265 no_of_queue = no_of_vpath;
3266
3267 ndev = alloc_etherdev_mq(sizeof(struct vxgedev),
3268 no_of_queue);
3269 if (ndev == NULL) {
3270 vxge_debug_init(
3271 vxge_hw_device_trace_level_get(hldev),
3272 "%s : device allocation failed", __func__);
3273 ret = -ENODEV;
3274 goto _out0;
3275 }
3276
3277 vxge_debug_entryexit(
3278 vxge_hw_device_trace_level_get(hldev),
3279 "%s: %s:%d Entering...",
3280 ndev->name, __func__, __LINE__);
3281
3282 vdev = netdev_priv(ndev);
3283 memset(vdev, 0, sizeof(struct vxgedev));
3284
3285 vdev->ndev = ndev;
3286 vdev->devh = hldev;
3287 vdev->pdev = hldev->pdev;
3288 memcpy(&vdev->config, config, sizeof(struct vxge_config));
3289 vdev->rx_csum = 1; /* Enable Rx CSUM by default. */
3290
3291 SET_NETDEV_DEV(ndev, &vdev->pdev->dev);
3292
3293 ndev->features |= NETIF_F_HW_VLAN_TX | NETIF_F_HW_VLAN_RX |
3294 NETIF_F_HW_VLAN_FILTER;
3295 /* Driver entry points */
3296 ndev->irq = vdev->pdev->irq;
3297 ndev->base_addr = (unsigned long) hldev->bar0;
3298
3299 ndev->netdev_ops = &vxge_netdev_ops;
3300
3301 ndev->watchdog_timeo = VXGE_LL_WATCH_DOG_TIMEOUT;
3302
3303 initialize_ethtool_ops(ndev);
3304
3305 /* Allocate memory for vpath */
3306 vdev->vpaths = kzalloc((sizeof(struct vxge_vpath)) *
3307 no_of_vpath, GFP_KERNEL);
3308 if (!vdev->vpaths) {
3309 vxge_debug_init(VXGE_ERR,
3310 "%s: vpath memory allocation failed",
3311 vdev->ndev->name);
3312 ret = -ENODEV;
3313 goto _out1;
3314 }
3315
3316 ndev->features |= NETIF_F_SG;
3317
3318 ndev->features |= NETIF_F_HW_CSUM;
3319 vxge_debug_init(vxge_hw_device_trace_level_get(hldev),
3320 "%s : checksuming enabled", __func__);
3321
3322 if (high_dma) {
3323 ndev->features |= NETIF_F_HIGHDMA;
3324 vxge_debug_init(vxge_hw_device_trace_level_get(hldev),
3325 "%s : using High DMA", __func__);
3326 }
3327
3328 ndev->features |= NETIF_F_TSO | NETIF_F_TSO6;
3329
3330 if (vdev->config.gro_enable)
3331 ndev->features |= NETIF_F_GRO;
3332
3333 if (vdev->config.tx_steering_type == TX_MULTIQ_STEERING)
3334 ndev->real_num_tx_queues = no_of_vpath;
3335
3336#ifdef NETIF_F_LLTX
3337 ndev->features |= NETIF_F_LLTX;
3338#endif
3339
3340 for (i = 0; i < no_of_vpath; i++)
3341 spin_lock_init(&vdev->vpaths[i].fifo.tx_lock);
3342
3343 if (register_netdev(ndev)) {
3344 vxge_debug_init(vxge_hw_device_trace_level_get(hldev),
3345 "%s: %s : device registration failed!",
3346 ndev->name, __func__);
3347 ret = -ENODEV;
3348 goto _out2;
3349 }
3350
3351 /* Set the factory defined MAC address initially */
3352 ndev->addr_len = ETH_ALEN;
3353
3354 /* Make Link state as off at this point, when the Link change
3355 * interrupt comes the state will be automatically changed to
3356 * the right state.
3357 */
3358 netif_carrier_off(ndev);
3359
3360 vxge_debug_init(vxge_hw_device_trace_level_get(hldev),
3361 "%s: Ethernet device registered",
3362 ndev->name);
3363
3364 *vdev_out = vdev;
3365
3366 /* Resetting the Device stats */
3367 status = vxge_hw_mrpcim_stats_access(
3368 hldev,
3369 VXGE_HW_STATS_OP_CLEAR_ALL_STATS,
3370 0,
3371 0,
3372 &stat);
3373
3374 if (status == VXGE_HW_ERR_PRIVILAGED_OPEARATION)
3375 vxge_debug_init(
3376 vxge_hw_device_trace_level_get(hldev),
3377 "%s: device stats clear returns"
3378 "VXGE_HW_ERR_PRIVILAGED_OPEARATION", ndev->name);
3379
3380 vxge_debug_entryexit(vxge_hw_device_trace_level_get(hldev),
3381 "%s: %s:%d Exiting...",
3382 ndev->name, __func__, __LINE__);
3383
3384 return ret;
3385_out2:
3386 kfree(vdev->vpaths);
3387_out1:
3388 free_netdev(ndev);
3389_out0:
3390 return ret;
3391}
3392
3393/*
3394 * vxge_device_unregister
3395 *
3396 * This function will unregister and free network device
3397 */
3398void
3399vxge_device_unregister(struct __vxge_hw_device *hldev)
3400{
3401 struct vxgedev *vdev;
3402 struct net_device *dev;
3403 char buf[IFNAMSIZ];
3404#if ((VXGE_DEBUG_INIT & VXGE_DEBUG_MASK) || \
3405 (VXGE_DEBUG_ENTRYEXIT & VXGE_DEBUG_MASK))
3406 u32 level_trace;
3407#endif
3408
3409 dev = hldev->ndev;
3410 vdev = netdev_priv(dev);
3411#if ((VXGE_DEBUG_INIT & VXGE_DEBUG_MASK) || \
3412 (VXGE_DEBUG_ENTRYEXIT & VXGE_DEBUG_MASK))
3413 level_trace = vdev->level_trace;
3414#endif
3415 vxge_debug_entryexit(level_trace,
3416 "%s: %s:%d", vdev->ndev->name, __func__, __LINE__);
3417
3418 memcpy(buf, vdev->ndev->name, IFNAMSIZ);
3419
3420 /* in 2.6 will call stop() if device is up */
3421 unregister_netdev(dev);
3422
3423 flush_scheduled_work();
3424
3425 vxge_debug_init(level_trace, "%s: ethernet device unregistered", buf);
3426 vxge_debug_entryexit(level_trace,
3427 "%s: %s:%d Exiting...", buf, __func__, __LINE__);
3428}
3429
3430/*
3431 * vxge_callback_crit_err
3432 *
3433 * This function is called by the alarm handler in interrupt context.
3434 * Driver must analyze it based on the event type.
3435 */
3436static void
3437vxge_callback_crit_err(struct __vxge_hw_device *hldev,
3438 enum vxge_hw_event type, u64 vp_id)
3439{
3440 struct net_device *dev = hldev->ndev;
3441 struct vxgedev *vdev = (struct vxgedev *)netdev_priv(dev);
3442 int vpath_idx;
3443
3444 vxge_debug_entryexit(vdev->level_trace,
3445 "%s: %s:%d", vdev->ndev->name, __func__, __LINE__);
3446
3447 /* Note: This event type should be used for device wide
3448 * indications only - Serious errors, Slot freeze and critical errors
3449 */
3450 vdev->cric_err_event = type;
3451
3452 for (vpath_idx = 0; vpath_idx < vdev->no_of_vpath; vpath_idx++)
3453 if (vdev->vpaths[vpath_idx].device_id == vp_id)
3454 break;
3455
3456 if (!test_bit(__VXGE_STATE_RESET_CARD, &vdev->state)) {
3457 if (type == VXGE_HW_EVENT_SLOT_FREEZE) {
3458 vxge_debug_init(VXGE_ERR,
3459 "%s: Slot is frozen", vdev->ndev->name);
3460 } else if (type == VXGE_HW_EVENT_SERR) {
3461 vxge_debug_init(VXGE_ERR,
3462 "%s: Encountered Serious Error",
3463 vdev->ndev->name);
3464 } else if (type == VXGE_HW_EVENT_CRITICAL_ERR)
3465 vxge_debug_init(VXGE_ERR,
3466 "%s: Encountered Critical Error",
3467 vdev->ndev->name);
3468 }
3469
3470 if ((type == VXGE_HW_EVENT_SERR) ||
3471 (type == VXGE_HW_EVENT_SLOT_FREEZE)) {
3472 if (unlikely(vdev->exec_mode))
3473 clear_bit(__VXGE_STATE_CARD_UP, &vdev->state);
3474 } else if (type == VXGE_HW_EVENT_CRITICAL_ERR) {
3475 vxge_hw_device_mask_all(hldev);
3476 if (unlikely(vdev->exec_mode))
3477 clear_bit(__VXGE_STATE_CARD_UP, &vdev->state);
3478 } else if ((type == VXGE_HW_EVENT_FIFO_ERR) ||
3479 (type == VXGE_HW_EVENT_VPATH_ERR)) {
3480
3481 if (unlikely(vdev->exec_mode))
3482 clear_bit(__VXGE_STATE_CARD_UP, &vdev->state);
3483 else {
3484 /* check if this vpath is already set for reset */
3485 if (!test_and_set_bit(vpath_idx, &vdev->vp_reset)) {
3486
3487 /* disable interrupts for this vpath */
3488 vxge_vpath_intr_disable(vdev, vpath_idx);
3489
3490 /* stop the queue for this vpath */
3491 vxge_stop_tx_queue(&vdev->vpaths[vpath_idx].
3492 fifo);
3493 }
3494 }
3495 }
3496
3497 vxge_debug_entryexit(vdev->level_trace,
3498 "%s: %s:%d Exiting...",
3499 vdev->ndev->name, __func__, __LINE__);
3500}
3501
3502static void verify_bandwidth(void)
3503{
3504 int i, band_width, total = 0, equal_priority = 0;
3505
3506 /* 1. If user enters 0 for some fifo, give equal priority to all */
3507 for (i = 0; i < VXGE_HW_MAX_VIRTUAL_PATHS; i++) {
3508 if (bw_percentage[i] == 0) {
3509 equal_priority = 1;
3510 break;
3511 }
3512 }
3513
3514 if (!equal_priority) {
3515 /* 2. If sum exceeds 100, give equal priority to all */
3516 for (i = 0; i < VXGE_HW_MAX_VIRTUAL_PATHS; i++) {
3517 if (bw_percentage[i] == 0xFF)
3518 break;
3519
3520 total += bw_percentage[i];
3521 if (total > VXGE_HW_VPATH_BANDWIDTH_MAX) {
3522 equal_priority = 1;
3523 break;
3524 }
3525 }
3526 }
3527
3528 if (!equal_priority) {
3529 /* Is all the bandwidth consumed? */
3530 if (total < VXGE_HW_VPATH_BANDWIDTH_MAX) {
3531 if (i < VXGE_HW_MAX_VIRTUAL_PATHS) {
3532 /* Split rest of bw equally among next VPs*/
3533 band_width =
3534 (VXGE_HW_VPATH_BANDWIDTH_MAX - total) /
3535 (VXGE_HW_MAX_VIRTUAL_PATHS - i);
3536 if (band_width < 2) /* min of 2% */
3537 equal_priority = 1;
3538 else {
3539 for (; i < VXGE_HW_MAX_VIRTUAL_PATHS;
3540 i++)
3541 bw_percentage[i] =
3542 band_width;
3543 }
3544 }
3545 } else if (i < VXGE_HW_MAX_VIRTUAL_PATHS)
3546 equal_priority = 1;
3547 }
3548
3549 if (equal_priority) {
3550 vxge_debug_init(VXGE_ERR,
3551 "%s: Assigning equal bandwidth to all the vpaths",
3552 VXGE_DRIVER_NAME);
3553 bw_percentage[0] = VXGE_HW_VPATH_BANDWIDTH_MAX /
3554 VXGE_HW_MAX_VIRTUAL_PATHS;
3555 for (i = 1; i < VXGE_HW_MAX_VIRTUAL_PATHS; i++)
3556 bw_percentage[i] = bw_percentage[0];
3557 }
3558
3559 return;
3560}
3561
3562/*
3563 * Vpath configuration
3564 */
3565static int __devinit vxge_config_vpaths(
3566 struct vxge_hw_device_config *device_config,
3567 u64 vpath_mask, struct vxge_config *config_param)
3568{
3569 int i, no_of_vpaths = 0, default_no_vpath = 0, temp;
3570 u32 txdl_size, txdl_per_memblock;
3571
3572 temp = driver_config->vpath_per_dev;
3573 if ((driver_config->vpath_per_dev == VXGE_USE_DEFAULT) &&
3574 (max_config_dev == VXGE_MAX_CONFIG_DEV)) {
3575 /* No more CPU. Return vpath number as zero.*/
3576 if (driver_config->g_no_cpus == -1)
3577 return 0;
3578
3579 if (!driver_config->g_no_cpus)
3580 driver_config->g_no_cpus = num_online_cpus();
3581
3582 driver_config->vpath_per_dev = driver_config->g_no_cpus >> 1;
3583 if (!driver_config->vpath_per_dev)
3584 driver_config->vpath_per_dev = 1;
3585
3586 for (i = 0; i < VXGE_HW_MAX_VIRTUAL_PATHS; i++)
3587 if (!vxge_bVALn(vpath_mask, i, 1))
3588 continue;
3589 else
3590 default_no_vpath++;
3591 if (default_no_vpath < driver_config->vpath_per_dev)
3592 driver_config->vpath_per_dev = default_no_vpath;
3593
3594 driver_config->g_no_cpus = driver_config->g_no_cpus -
3595 (driver_config->vpath_per_dev * 2);
3596 if (driver_config->g_no_cpus <= 0)
3597 driver_config->g_no_cpus = -1;
3598 }
3599
3600 if (driver_config->vpath_per_dev == 1) {
3601 vxge_debug_ll_config(VXGE_TRACE,
3602 "%s: Disable tx and rx steering, "
3603 "as single vpath is configured", VXGE_DRIVER_NAME);
3604 config_param->rth_steering = NO_STEERING;
3605 config_param->tx_steering_type = NO_STEERING;
3606 device_config->rth_en = 0;
3607 }
3608
3609 /* configure bandwidth */
3610 for (i = 0; i < VXGE_HW_MAX_VIRTUAL_PATHS; i++)
3611 device_config->vp_config[i].min_bandwidth = bw_percentage[i];
3612
3613 for (i = 0; i < VXGE_HW_MAX_VIRTUAL_PATHS; i++) {
3614 device_config->vp_config[i].vp_id = i;
3615 device_config->vp_config[i].mtu = VXGE_HW_DEFAULT_MTU;
3616 if (no_of_vpaths < driver_config->vpath_per_dev) {
3617 if (!vxge_bVALn(vpath_mask, i, 1)) {
3618 vxge_debug_ll_config(VXGE_TRACE,
3619 "%s: vpath: %d is not available",
3620 VXGE_DRIVER_NAME, i);
3621 continue;
3622 } else {
3623 vxge_debug_ll_config(VXGE_TRACE,
3624 "%s: vpath: %d available",
3625 VXGE_DRIVER_NAME, i);
3626 no_of_vpaths++;
3627 }
3628 } else {
3629 vxge_debug_ll_config(VXGE_TRACE,
3630 "%s: vpath: %d is not configured, "
3631 "max_config_vpath exceeded",
3632 VXGE_DRIVER_NAME, i);
3633 break;
3634 }
3635
3636 /* Configure Tx fifo's */
3637 device_config->vp_config[i].fifo.enable =
3638 VXGE_HW_FIFO_ENABLE;
3639 device_config->vp_config[i].fifo.max_frags =
3640 MAX_SKB_FRAGS;
3641 device_config->vp_config[i].fifo.memblock_size =
3642 VXGE_HW_MIN_FIFO_MEMBLOCK_SIZE;
3643
3644 txdl_size = MAX_SKB_FRAGS * sizeof(struct vxge_hw_fifo_txd);
3645 txdl_per_memblock = VXGE_HW_MIN_FIFO_MEMBLOCK_SIZE / txdl_size;
3646
3647 device_config->vp_config[i].fifo.fifo_blocks =
3648 ((VXGE_DEF_FIFO_LENGTH - 1) / txdl_per_memblock) + 1;
3649
3650 device_config->vp_config[i].fifo.intr =
3651 VXGE_HW_FIFO_QUEUE_INTR_DISABLE;
3652
3653 /* Configure tti properties */
3654 device_config->vp_config[i].tti.intr_enable =
3655 VXGE_HW_TIM_INTR_ENABLE;
3656
3657 device_config->vp_config[i].tti.btimer_val =
3658 (VXGE_TTI_BTIMER_VAL * 1000) / 272;
3659
3660 device_config->vp_config[i].tti.timer_ac_en =
3661 VXGE_HW_TIM_TIMER_AC_ENABLE;
3662
3663 /* For msi-x with napi (each vector
3664 has a handler of its own) -
3665 Set CI to OFF for all vpaths */
3666 device_config->vp_config[i].tti.timer_ci_en =
3667 VXGE_HW_TIM_TIMER_CI_DISABLE;
3668
3669 device_config->vp_config[i].tti.timer_ri_en =
3670 VXGE_HW_TIM_TIMER_RI_DISABLE;
3671
3672 device_config->vp_config[i].tti.util_sel =
3673 VXGE_HW_TIM_UTIL_SEL_LEGACY_TX_NET_UTIL;
3674
3675 device_config->vp_config[i].tti.ltimer_val =
3676 (VXGE_TTI_LTIMER_VAL * 1000) / 272;
3677
3678 device_config->vp_config[i].tti.rtimer_val =
3679 (VXGE_TTI_RTIMER_VAL * 1000) / 272;
3680
3681 device_config->vp_config[i].tti.urange_a = TTI_TX_URANGE_A;
3682 device_config->vp_config[i].tti.urange_b = TTI_TX_URANGE_B;
3683 device_config->vp_config[i].tti.urange_c = TTI_TX_URANGE_C;
3684 device_config->vp_config[i].tti.uec_a = TTI_TX_UFC_A;
3685 device_config->vp_config[i].tti.uec_b = TTI_TX_UFC_B;
3686 device_config->vp_config[i].tti.uec_c = TTI_TX_UFC_C;
3687 device_config->vp_config[i].tti.uec_d = TTI_TX_UFC_D;
3688
3689 /* Configure Rx rings */
3690 device_config->vp_config[i].ring.enable =
3691 VXGE_HW_RING_ENABLE;
3692
3693 device_config->vp_config[i].ring.ring_blocks =
3694 VXGE_HW_DEF_RING_BLOCKS;
3695 device_config->vp_config[i].ring.buffer_mode =
3696 VXGE_HW_RING_RXD_BUFFER_MODE_1;
3697 device_config->vp_config[i].ring.rxds_limit =
3698 VXGE_HW_DEF_RING_RXDS_LIMIT;
3699 device_config->vp_config[i].ring.scatter_mode =
3700 VXGE_HW_RING_SCATTER_MODE_A;
3701
3702 /* Configure rti properties */
3703 device_config->vp_config[i].rti.intr_enable =
3704 VXGE_HW_TIM_INTR_ENABLE;
3705
3706 device_config->vp_config[i].rti.btimer_val =
3707 (VXGE_RTI_BTIMER_VAL * 1000)/272;
3708
3709 device_config->vp_config[i].rti.timer_ac_en =
3710 VXGE_HW_TIM_TIMER_AC_ENABLE;
3711
3712 device_config->vp_config[i].rti.timer_ci_en =
3713 VXGE_HW_TIM_TIMER_CI_DISABLE;
3714
3715 device_config->vp_config[i].rti.timer_ri_en =
3716 VXGE_HW_TIM_TIMER_RI_DISABLE;
3717
3718 device_config->vp_config[i].rti.util_sel =
3719 VXGE_HW_TIM_UTIL_SEL_LEGACY_RX_NET_UTIL;
3720
3721 device_config->vp_config[i].rti.urange_a =
3722 RTI_RX_URANGE_A;
3723 device_config->vp_config[i].rti.urange_b =
3724 RTI_RX_URANGE_B;
3725 device_config->vp_config[i].rti.urange_c =
3726 RTI_RX_URANGE_C;
3727 device_config->vp_config[i].rti.uec_a = RTI_RX_UFC_A;
3728 device_config->vp_config[i].rti.uec_b = RTI_RX_UFC_B;
3729 device_config->vp_config[i].rti.uec_c = RTI_RX_UFC_C;
3730 device_config->vp_config[i].rti.uec_d = RTI_RX_UFC_D;
3731
3732 device_config->vp_config[i].rti.rtimer_val =
3733 (VXGE_RTI_RTIMER_VAL * 1000) / 272;
3734
3735 device_config->vp_config[i].rti.ltimer_val =
3736 (VXGE_RTI_LTIMER_VAL * 1000) / 272;
3737
3738 device_config->vp_config[i].rpa_strip_vlan_tag =
3739 vlan_tag_strip;
3740 }
3741
3742 driver_config->vpath_per_dev = temp;
3743 return no_of_vpaths;
3744}
3745
3746/* initialize device configuratrions */
3747static void __devinit vxge_device_config_init(
3748 struct vxge_hw_device_config *device_config,
3749 int *intr_type)
3750{
3751 /* Used for CQRQ/SRQ. */
3752 device_config->dma_blockpool_initial =
3753 VXGE_HW_INITIAL_DMA_BLOCK_POOL_SIZE;
3754
3755 device_config->dma_blockpool_max =
3756 VXGE_HW_MAX_DMA_BLOCK_POOL_SIZE;
3757
3758 if (max_mac_vpath > VXGE_MAX_MAC_ADDR_COUNT)
3759 max_mac_vpath = VXGE_MAX_MAC_ADDR_COUNT;
3760
3761#ifndef CONFIG_PCI_MSI
3762 vxge_debug_init(VXGE_ERR,
3763 "%s: This Kernel does not support "
3764 "MSI-X. Defaulting to INTA", VXGE_DRIVER_NAME);
3765 *intr_type = INTA;
3766#endif
3767
3768 /* Configure whether MSI-X or IRQL. */
3769 switch (*intr_type) {
3770 case INTA:
3771 device_config->intr_mode = VXGE_HW_INTR_MODE_IRQLINE;
3772 break;
3773
3774 case MSI_X:
3775 device_config->intr_mode = VXGE_HW_INTR_MODE_MSIX;
3776 break;
3777 }
3778 /* Timer period between device poll */
3779 device_config->device_poll_millis = VXGE_TIMER_DELAY;
3780
3781 /* Configure mac based steering. */
3782 device_config->rts_mac_en = addr_learn_en;
3783
3784 /* Configure Vpaths */
3785 device_config->rth_it_type = VXGE_HW_RTH_IT_TYPE_MULTI_IT;
3786
3787 vxge_debug_ll_config(VXGE_TRACE, "%s : Device Config Params ",
3788 __func__);
3789 vxge_debug_ll_config(VXGE_TRACE, "dma_blockpool_initial : %d",
3790 device_config->dma_blockpool_initial);
3791 vxge_debug_ll_config(VXGE_TRACE, "dma_blockpool_max : %d",
3792 device_config->dma_blockpool_max);
3793 vxge_debug_ll_config(VXGE_TRACE, "intr_mode : %d",
3794 device_config->intr_mode);
3795 vxge_debug_ll_config(VXGE_TRACE, "device_poll_millis : %d",
3796 device_config->device_poll_millis);
3797 vxge_debug_ll_config(VXGE_TRACE, "rts_mac_en : %d",
3798 device_config->rts_mac_en);
3799 vxge_debug_ll_config(VXGE_TRACE, "rth_en : %d",
3800 device_config->rth_en);
3801 vxge_debug_ll_config(VXGE_TRACE, "rth_it_type : %d",
3802 device_config->rth_it_type);
3803}
3804
3805static void __devinit vxge_print_parm(struct vxgedev *vdev, u64 vpath_mask)
3806{
3807 int i;
3808
3809 vxge_debug_init(VXGE_TRACE,
3810 "%s: %d Vpath(s) opened",
3811 vdev->ndev->name, vdev->no_of_vpath);
3812
3813 switch (vdev->config.intr_type) {
3814 case INTA:
3815 vxge_debug_init(VXGE_TRACE,
3816 "%s: Interrupt type INTA", vdev->ndev->name);
3817 break;
3818
3819 case MSI_X:
3820 vxge_debug_init(VXGE_TRACE,
3821 "%s: Interrupt type MSI-X", vdev->ndev->name);
3822 break;
3823 }
3824
3825 if (vdev->config.rth_steering) {
3826 vxge_debug_init(VXGE_TRACE,
3827 "%s: RTH steering enabled for TCP_IPV4",
3828 vdev->ndev->name);
3829 } else {
3830 vxge_debug_init(VXGE_TRACE,
3831 "%s: RTH steering disabled", vdev->ndev->name);
3832 }
3833
3834 switch (vdev->config.tx_steering_type) {
3835 case NO_STEERING:
3836 vxge_debug_init(VXGE_TRACE,
3837 "%s: Tx steering disabled", vdev->ndev->name);
3838 break;
3839 case TX_PRIORITY_STEERING:
3840 vxge_debug_init(VXGE_TRACE,
3841 "%s: Unsupported tx steering option",
3842 vdev->ndev->name);
3843 vxge_debug_init(VXGE_TRACE,
3844 "%s: Tx steering disabled", vdev->ndev->name);
3845 vdev->config.tx_steering_type = 0;
3846 break;
3847 case TX_VLAN_STEERING:
3848 vxge_debug_init(VXGE_TRACE,
3849 "%s: Unsupported tx steering option",
3850 vdev->ndev->name);
3851 vxge_debug_init(VXGE_TRACE,
3852 "%s: Tx steering disabled", vdev->ndev->name);
3853 vdev->config.tx_steering_type = 0;
3854 break;
3855 case TX_MULTIQ_STEERING:
3856 vxge_debug_init(VXGE_TRACE,
3857 "%s: Tx multiqueue steering enabled",
3858 vdev->ndev->name);
3859 break;
3860 case TX_PORT_STEERING:
3861 vxge_debug_init(VXGE_TRACE,
3862 "%s: Tx port steering enabled",
3863 vdev->ndev->name);
3864 break;
3865 default:
3866 vxge_debug_init(VXGE_ERR,
3867 "%s: Unsupported tx steering type",
3868 vdev->ndev->name);
3869 vxge_debug_init(VXGE_TRACE,
3870 "%s: Tx steering disabled", vdev->ndev->name);
3871 vdev->config.tx_steering_type = 0;
3872 }
3873
3874 if (vdev->config.gro_enable) {
3875 vxge_debug_init(VXGE_ERR,
3876 "%s: Generic receive offload enabled",
3877 vdev->ndev->name);
3878 } else
3879 vxge_debug_init(VXGE_TRACE,
3880 "%s: Generic receive offload disabled",
3881 vdev->ndev->name);
3882
3883 if (vdev->config.addr_learn_en)
3884 vxge_debug_init(VXGE_TRACE,
3885 "%s: MAC Address learning enabled", vdev->ndev->name);
3886
3887 vxge_debug_init(VXGE_TRACE,
3888 "%s: Rx doorbell mode enabled", vdev->ndev->name);
3889
3890 for (i = 0; i < VXGE_HW_MAX_VIRTUAL_PATHS; i++) {
3891 if (!vxge_bVALn(vpath_mask, i, 1))
3892 continue;
3893 vxge_debug_ll_config(VXGE_TRACE,
3894 "%s: MTU size - %d", vdev->ndev->name,
3895 ((struct __vxge_hw_device *)(vdev->devh))->
3896 config.vp_config[i].mtu);
3897 vxge_debug_init(VXGE_TRACE,
3898 "%s: VLAN tag stripping %s", vdev->ndev->name,
3899 ((struct __vxge_hw_device *)(vdev->devh))->
3900 config.vp_config[i].rpa_strip_vlan_tag
3901 ? "Enabled" : "Disabled");
3902 vxge_debug_init(VXGE_TRACE,
3903 "%s: Ring blocks : %d", vdev->ndev->name,
3904 ((struct __vxge_hw_device *)(vdev->devh))->
3905 config.vp_config[i].ring.ring_blocks);
3906 vxge_debug_init(VXGE_TRACE,
3907 "%s: Fifo blocks : %d", vdev->ndev->name,
3908 ((struct __vxge_hw_device *)(vdev->devh))->
3909 config.vp_config[i].fifo.fifo_blocks);
3910 vxge_debug_ll_config(VXGE_TRACE,
3911 "%s: Max frags : %d", vdev->ndev->name,
3912 ((struct __vxge_hw_device *)(vdev->devh))->
3913 config.vp_config[i].fifo.max_frags);
3914 break;
3915 }
3916}
3917
3918#ifdef CONFIG_PM
3919/**
3920 * vxge_pm_suspend - vxge power management suspend entry point
3921 *
3922 */
3923static int vxge_pm_suspend(struct pci_dev *pdev, pm_message_t state)
3924{
3925 return -ENOSYS;
3926}
3927/**
3928 * vxge_pm_resume - vxge power management resume entry point
3929 *
3930 */
3931static int vxge_pm_resume(struct pci_dev *pdev)
3932{
3933 return -ENOSYS;
3934}
3935
3936#endif
3937
3938/**
3939 * vxge_io_error_detected - called when PCI error is detected
3940 * @pdev: Pointer to PCI device
3941 * @state: The current pci connection state
3942 *
3943 * This function is called after a PCI bus error affecting
3944 * this device has been detected.
3945 */
3946static pci_ers_result_t vxge_io_error_detected(struct pci_dev *pdev,
3947 pci_channel_state_t state)
3948{
3949 struct __vxge_hw_device *hldev =
3950 (struct __vxge_hw_device *) pci_get_drvdata(pdev);
3951 struct net_device *netdev = hldev->ndev;
3952
3953 netif_device_detach(netdev);
3954
3955 if (netif_running(netdev)) {
3956 /* Bring down the card, while avoiding PCI I/O */
3957 do_vxge_close(netdev, 0);
3958 }
3959
3960 pci_disable_device(pdev);
3961
3962 return PCI_ERS_RESULT_NEED_RESET;
3963}
3964
3965/**
3966 * vxge_io_slot_reset - called after the pci bus has been reset.
3967 * @pdev: Pointer to PCI device
3968 *
3969 * Restart the card from scratch, as if from a cold-boot.
3970 * At this point, the card has exprienced a hard reset,
3971 * followed by fixups by BIOS, and has its config space
3972 * set up identically to what it was at cold boot.
3973 */
3974static pci_ers_result_t vxge_io_slot_reset(struct pci_dev *pdev)
3975{
3976 struct __vxge_hw_device *hldev =
3977 (struct __vxge_hw_device *) pci_get_drvdata(pdev);
3978 struct net_device *netdev = hldev->ndev;
3979
3980 struct vxgedev *vdev = netdev_priv(netdev);
3981
3982 if (pci_enable_device(pdev)) {
3983 printk(KERN_ERR "%s: "
3984 "Cannot re-enable device after reset\n",
3985 VXGE_DRIVER_NAME);
3986 return PCI_ERS_RESULT_DISCONNECT;
3987 }
3988
3989 pci_set_master(pdev);
3990 vxge_reset(vdev);
3991
3992 return PCI_ERS_RESULT_RECOVERED;
3993}
3994
3995/**
3996 * vxge_io_resume - called when traffic can start flowing again.
3997 * @pdev: Pointer to PCI device
3998 *
3999 * This callback is called when the error recovery driver tells
4000 * us that its OK to resume normal operation.
4001 */
4002static void vxge_io_resume(struct pci_dev *pdev)
4003{
4004 struct __vxge_hw_device *hldev =
4005 (struct __vxge_hw_device *) pci_get_drvdata(pdev);
4006 struct net_device *netdev = hldev->ndev;
4007
4008 if (netif_running(netdev)) {
4009 if (vxge_open(netdev)) {
4010 printk(KERN_ERR "%s: "
4011 "Can't bring device back up after reset\n",
4012 VXGE_DRIVER_NAME);
4013 return;
4014 }
4015 }
4016
4017 netif_device_attach(netdev);
4018}
4019
4020/**
4021 * vxge_probe
4022 * @pdev : structure containing the PCI related information of the device.
4023 * @pre: List of PCI devices supported by the driver listed in vxge_id_table.
4024 * Description:
4025 * This function is called when a new PCI device gets detected and initializes
4026 * it.
4027 * Return value:
4028 * returns 0 on success and negative on failure.
4029 *
4030 */
4031static int __devinit
4032vxge_probe(struct pci_dev *pdev, const struct pci_device_id *pre)
4033{
4034 struct __vxge_hw_device *hldev;
4035 enum vxge_hw_status status;
4036 int ret;
4037 int high_dma = 0;
4038 u64 vpath_mask = 0;
4039 struct vxgedev *vdev;
4040 struct vxge_config ll_config;
4041 struct vxge_hw_device_config *device_config = NULL;
4042 struct vxge_hw_device_attr attr;
4043 int i, j, no_of_vpath = 0, max_vpath_supported = 0;
4044 u8 *macaddr;
4045 struct vxge_mac_addrs *entry;
4046 static int bus = -1, device = -1;
4047 u8 new_device = 0;
4048
4049 vxge_debug_entryexit(VXGE_TRACE, "%s:%d", __func__, __LINE__);
4050 attr.pdev = pdev;
4051
4052 if (bus != pdev->bus->number)
4053 new_device = 1;
4054 if (device != PCI_SLOT(pdev->devfn))
4055 new_device = 1;
4056
4057 bus = pdev->bus->number;
4058 device = PCI_SLOT(pdev->devfn);
4059
4060 if (new_device) {
4061 if (driver_config->config_dev_cnt &&
4062 (driver_config->config_dev_cnt !=
4063 driver_config->total_dev_cnt))
4064 vxge_debug_init(VXGE_ERR,
4065 "%s: Configured %d of %d devices",
4066 VXGE_DRIVER_NAME,
4067 driver_config->config_dev_cnt,
4068 driver_config->total_dev_cnt);
4069 driver_config->config_dev_cnt = 0;
4070 driver_config->total_dev_cnt = 0;
4071 driver_config->g_no_cpus = 0;
4072 driver_config->vpath_per_dev = max_config_vpath;
4073 }
4074
4075 driver_config->total_dev_cnt++;
4076 if (++driver_config->config_dev_cnt > max_config_dev) {
4077 ret = 0;
4078 goto _exit0;
4079 }
4080
4081 device_config = kzalloc(sizeof(struct vxge_hw_device_config),
4082 GFP_KERNEL);
4083 if (!device_config) {
4084 ret = -ENOMEM;
4085 vxge_debug_init(VXGE_ERR,
4086 "device_config : malloc failed %s %d",
4087 __FILE__, __LINE__);
4088 goto _exit0;
4089 }
4090
4091 memset(&ll_config, 0, sizeof(struct vxge_config));
4092 ll_config.tx_steering_type = TX_MULTIQ_STEERING;
4093 ll_config.intr_type = MSI_X;
4094 ll_config.napi_weight = NEW_NAPI_WEIGHT;
4095 ll_config.rth_steering = RTH_STEERING;
4096
4097 /* get the default configuration parameters */
4098 vxge_hw_device_config_default_get(device_config);
4099
4100 /* initialize configuration parameters */
4101 vxge_device_config_init(device_config, &ll_config.intr_type);
4102
4103 ret = pci_enable_device(pdev);
4104 if (ret) {
4105 vxge_debug_init(VXGE_ERR,
4106 "%s : can not enable PCI device", __func__);
4107 goto _exit0;
4108 }
4109
4110 if (!pci_set_dma_mask(pdev, 0xffffffffffffffffULL)) {
4111 vxge_debug_ll_config(VXGE_TRACE,
4112 "%s : using 64bit DMA", __func__);
4113
4114 high_dma = 1;
4115
4116 if (pci_set_consistent_dma_mask(pdev,
4117 0xffffffffffffffffULL)) {
4118 vxge_debug_init(VXGE_ERR,
4119 "%s : unable to obtain 64bit DMA for "
4120 "consistent allocations", __func__);
4121 ret = -ENOMEM;
4122 goto _exit1;
4123 }
4124 } else if (!pci_set_dma_mask(pdev, 0xffffffffUL)) {
4125 vxge_debug_ll_config(VXGE_TRACE,
4126 "%s : using 32bit DMA", __func__);
4127 } else {
4128 ret = -ENOMEM;
4129 goto _exit1;
4130 }
4131
4132 if (pci_request_regions(pdev, VXGE_DRIVER_NAME)) {
4133 vxge_debug_init(VXGE_ERR,
4134 "%s : request regions failed", __func__);
4135 ret = -ENODEV;
4136 goto _exit1;
4137 }
4138
4139 pci_set_master(pdev);
4140
4141 attr.bar0 = pci_ioremap_bar(pdev, 0);
4142 if (!attr.bar0) {
4143 vxge_debug_init(VXGE_ERR,
4144 "%s : cannot remap io memory bar0", __func__);
4145 ret = -ENODEV;
4146 goto _exit2;
4147 }
4148 vxge_debug_ll_config(VXGE_TRACE,
4149 "pci ioremap bar0: %p:0x%llx",
4150 attr.bar0,
4151 (unsigned long long)pci_resource_start(pdev, 0));
4152
703da5a1
RV		 4153 status = vxge_hw_device_hw_info_get(attr.bar0,
4154 &ll_config.device_hw_info);
4155 if (status != VXGE_HW_OK) {
4156 vxge_debug_init(VXGE_ERR,
4157 "%s: Reading of hardware info failed."
4158 "Please try upgrading the firmware.", VXGE_DRIVER_NAME);
4159 ret = -EINVAL;
7975d1ee 4160 goto _exit3;
703da5a1
RV		 4161 }
4162
4163 if (ll_config.device_hw_info.fw_version.major !=
4164 VXGE_DRIVER_VERSION_MAJOR) {
4165 vxge_debug_init(VXGE_ERR,
4166 "FW Ver.(maj): %d not driver's expected version: %d",
4167 ll_config.device_hw_info.fw_version.major,
4168 VXGE_DRIVER_VERSION_MAJOR);
4169 ret = -EINVAL;
7975d1ee 4170 goto _exit3;
703da5a1
RV		 4171 }
4172
4173 vpath_mask = ll_config.device_hw_info.vpath_mask;
4174 if (vpath_mask == 0) {
4175 vxge_debug_ll_config(VXGE_TRACE,
4176 "%s: No vpaths available in device", VXGE_DRIVER_NAME);
4177 ret = -EINVAL;
7975d1ee 4178 goto _exit3;
703da5a1
RV		 4179 }
4180
4181 vxge_debug_ll_config(VXGE_TRACE,
4182 "%s:%d Vpath mask = %llx", __func__, __LINE__,
4183 (unsigned long long)vpath_mask);
4184
4185 /* Check how many vpaths are available */
4186 for (i = 0; i < VXGE_HW_MAX_VIRTUAL_PATHS; i++) {
4187 if (!((vpath_mask) & vxge_mBIT(i)))
4188 continue;
4189 max_vpath_supported++;
4190 }
4191
5dbc9011
SS		 4192 /* Enable SRIOV mode, if firmware has SRIOV support and if it is a PF */
4193 if ((VXGE_HW_FUNCTION_MODE_SRIOV ==
4194 ll_config.device_hw_info.function_mode) &&
4195 (max_config_dev > 1) && (pdev->is_physfn)) {
4196 ret = pci_enable_sriov(pdev, max_config_dev - 1);
4197 if (ret)
4198 vxge_debug_ll_config(VXGE_ERR,
4199 "Failed to enable SRIOV: %d \n", ret);
4200 }
4201
703da5a1
RV		 4202 /*
4203 * Configure vpaths and get driver configured number of vpaths
4204 * which is less than or equal to the maximum vpaths per function.
4205 */
4206 no_of_vpath = vxge_config_vpaths(device_config, vpath_mask, &ll_config);
4207 if (!no_of_vpath) {
4208 vxge_debug_ll_config(VXGE_ERR,
4209 "%s: No more vpaths to configure", VXGE_DRIVER_NAME);
4210 ret = 0;
7975d1ee 4211 goto _exit3;
703da5a1
RV		 4212 }
4213
4214 /* Setting driver callbacks */
4215 attr.uld_callbacks.link_up = vxge_callback_link_up;
4216 attr.uld_callbacks.link_down = vxge_callback_link_down;
4217 attr.uld_callbacks.crit_err = vxge_callback_crit_err;
4218
4219 status = vxge_hw_device_initialize(&hldev, &attr, device_config);
4220 if (status != VXGE_HW_OK) {
4221 vxge_debug_init(VXGE_ERR,
4222 "Failed to initialize device (%d)", status);
4223 ret = -EINVAL;
7975d1ee 4224 goto _exit3;
703da5a1
RV		 4225 }
4226
4227 vxge_hw_device_debug_set(hldev, VXGE_ERR, VXGE_COMPONENT_LL);
4228
4229 /* set private device info */
4230 pci_set_drvdata(pdev, hldev);
4231
4232 ll_config.gro_enable = VXGE_GRO_ALWAYS_AGGREGATE;
4233 ll_config.fifo_indicate_max_pkts = VXGE_FIFO_INDICATE_MAX_PKTS;
4234 ll_config.addr_learn_en = addr_learn_en;
4235 ll_config.rth_algorithm = RTH_ALG_JENKINS;
4236 ll_config.rth_hash_type_tcpipv4 = VXGE_HW_RING_HASH_TYPE_TCP_IPV4;
4237 ll_config.rth_hash_type_ipv4 = VXGE_HW_RING_HASH_TYPE_NONE;
4238 ll_config.rth_hash_type_tcpipv6 = VXGE_HW_RING_HASH_TYPE_NONE;
4239 ll_config.rth_hash_type_ipv6 = VXGE_HW_RING_HASH_TYPE_NONE;
4240 ll_config.rth_hash_type_tcpipv6ex = VXGE_HW_RING_HASH_TYPE_NONE;
4241 ll_config.rth_hash_type_ipv6ex = VXGE_HW_RING_HASH_TYPE_NONE;
4242 ll_config.rth_bkt_sz = RTH_BUCKET_SIZE;
4243 ll_config.tx_pause_enable = VXGE_PAUSE_CTRL_ENABLE;
4244 ll_config.rx_pause_enable = VXGE_PAUSE_CTRL_ENABLE;
4245
4246 if (vxge_device_register(hldev, &ll_config, high_dma, no_of_vpath,
4247 &vdev)) {
4248 ret = -EINVAL;
7975d1ee 4249 goto _exit4;
703da5a1
RV		 4250 }
4251
4252 vxge_hw_device_debug_set(hldev, VXGE_TRACE, VXGE_COMPONENT_LL);
4253 VXGE_COPY_DEBUG_INFO_TO_LL(vdev, vxge_hw_device_error_level_get(hldev),
4254 vxge_hw_device_trace_level_get(hldev));
4255
4256 /* set private HW device info */
4257 hldev->ndev = vdev->ndev;
4258 vdev->mtu = VXGE_HW_DEFAULT_MTU;
4259 vdev->bar0 = attr.bar0;
703da5a1
RV		 4260 vdev->max_vpath_supported = max_vpath_supported;
4261 vdev->no_of_vpath = no_of_vpath;
4262
4263 /* Virtual Path count */
4264 for (i = 0, j = 0; i < VXGE_HW_MAX_VIRTUAL_PATHS; i++) {
4265 if (!vxge_bVALn(vpath_mask, i, 1))
4266 continue;
4267 if (j >= vdev->no_of_vpath)
4268 break;
4269
4270 vdev->vpaths[j].is_configured = 1;
4271 vdev->vpaths[j].device_id = i;
4272 vdev->vpaths[j].fifo.driver_id = j;
4273 vdev->vpaths[j].ring.driver_id = j;
4274 vdev->vpaths[j].vdev = vdev;
4275 vdev->vpaths[j].max_mac_addr_cnt = max_mac_vpath;
4276 memcpy((u8 *)vdev->vpaths[j].macaddr,
4277 (u8 *)ll_config.device_hw_info.mac_addrs[i],
4278 ETH_ALEN);
4279
4280 /* Initialize the mac address list header */
4281 INIT_LIST_HEAD(&vdev->vpaths[j].mac_addr_list);
4282
4283 vdev->vpaths[j].mac_addr_cnt = 0;
4284 vdev->vpaths[j].mcast_addr_cnt = 0;
4285 j++;
4286 }
4287 vdev->exec_mode = VXGE_EXEC_MODE_DISABLE;
4288 vdev->max_config_port = max_config_port;
4289
4290 vdev->vlan_tag_strip = vlan_tag_strip;
4291
4292 /* map the hashing selector table to the configured vpaths */
4293 for (i = 0; i < vdev->no_of_vpath; i++)
4294 vdev->vpath_selector[i] = vpath_selector[i];
4295
4296 macaddr = (u8 *)vdev->vpaths[0].macaddr;
4297
4298 ll_config.device_hw_info.serial_number[VXGE_HW_INFO_LEN - 1] = '\0';
4299 ll_config.device_hw_info.product_desc[VXGE_HW_INFO_LEN - 1] = '\0';
4300 ll_config.device_hw_info.part_number[VXGE_HW_INFO_LEN - 1] = '\0';
4301
4302 vxge_debug_init(VXGE_TRACE, "%s: SERIAL NUMBER: %s",
4303 vdev->ndev->name, ll_config.device_hw_info.serial_number);
4304
4305 vxge_debug_init(VXGE_TRACE, "%s: PART NUMBER: %s",
4306 vdev->ndev->name, ll_config.device_hw_info.part_number);
4307
4308 vxge_debug_init(VXGE_TRACE, "%s: Neterion %s Server Adapter",
4309 vdev->ndev->name, ll_config.device_hw_info.product_desc);
4310
4311 vxge_debug_init(VXGE_TRACE,
4312 "%s: MAC ADDR: %02X:%02X:%02X:%02X:%02X:%02X",
4313 vdev->ndev->name, macaddr[0], macaddr[1], macaddr[2],
4314 macaddr[3], macaddr[4], macaddr[5]);
4315
4316 vxge_debug_init(VXGE_TRACE, "%s: Link Width x%d",
4317 vdev->ndev->name, vxge_hw_device_link_width_get(hldev));
4318
4319 vxge_debug_init(VXGE_TRACE,
4320 "%s: Firmware version : %s Date : %s", vdev->ndev->name,
4321 ll_config.device_hw_info.fw_version.version,
4322 ll_config.device_hw_info.fw_date.date);
4323
4324 vxge_print_parm(vdev, vpath_mask);
4325
4326 /* Store the fw version for ethttool option */
4327 strcpy(vdev->fw_version, ll_config.device_hw_info.fw_version.version);
4328 memcpy(vdev->ndev->dev_addr, (u8 *)vdev->vpaths[0].macaddr, ETH_ALEN);
4329 memcpy(vdev->ndev->perm_addr, vdev->ndev->dev_addr, ETH_ALEN);
4330
4331 /* Copy the station mac address to the list */
4332 for (i = 0; i < vdev->no_of_vpath; i++) {
4333 entry = (struct vxge_mac_addrs *)
4334 kzalloc(sizeof(struct vxge_mac_addrs),
4335 GFP_KERNEL);
4336 if (NULL == entry) {
4337 vxge_debug_init(VXGE_ERR,
4338 "%s: mac_addr_list : memory allocation failed",
4339 vdev->ndev->name);
4340 ret = -EPERM;
7975d1ee 4341 goto _exit5;
703da5a1
RV		 4342 }
4343 macaddr = (u8 *)&entry->macaddr;
4344 memcpy(macaddr, vdev->ndev->dev_addr, ETH_ALEN);
4345 list_add(&entry->item, &vdev->vpaths[i].mac_addr_list);
4346 vdev->vpaths[i].mac_addr_cnt = 1;
4347 }
4348
914d0d71 4349 kfree(device_config);
703da5a1
RV		 4350 vxge_debug_entryexit(VXGE_TRACE, "%s: %s:%d Exiting...",
4351 vdev->ndev->name, __func__, __LINE__);
4352
4353 vxge_hw_device_debug_set(hldev, VXGE_ERR, VXGE_COMPONENT_LL);
4354 VXGE_COPY_DEBUG_INFO_TO_LL(vdev, vxge_hw_device_error_level_get(hldev),
4355 vxge_hw_device_trace_level_get(hldev));
4356
4357 return 0;
4358
7975d1ee 4359_exit5:
703da5a1
RV		 4360 for (i = 0; i < vdev->no_of_vpath; i++)
4361 vxge_free_mac_add_list(&vdev->vpaths[i]);
4362
4363 vxge_device_unregister(hldev);
7975d1ee 4364_exit4:
5dbc9011 4365 pci_disable_sriov(pdev);
703da5a1 4366 vxge_hw_device_terminate(hldev);
703da5a1
RV		 4367_exit3:
4368 iounmap(attr.bar0);
4369_exit2:
4370 pci_release_regions(pdev);
4371_exit1:
4372 pci_disable_device(pdev);
4373_exit0:
4374 kfree(device_config);
4375 driver_config->config_dev_cnt--;
4376 pci_set_drvdata(pdev, NULL);
4377 return ret;
4378}
4379
4380/**
4381 * vxge_rem_nic - Free the PCI device
4382 * @pdev: structure containing the PCI related information of the device.
4383 * Description: This function is called by the Pci subsystem to release a
4384 * PCI device and free up all resource held up by the device.
4385 */
4386static void __devexit
4387vxge_remove(struct pci_dev *pdev)
4388{
4389 struct __vxge_hw_device *hldev;
4390 struct vxgedev *vdev = NULL;
4391 struct net_device *dev;
4392 int i = 0;
4393#if ((VXGE_DEBUG_INIT & VXGE_DEBUG_MASK) || \
4394 (VXGE_DEBUG_ENTRYEXIT & VXGE_DEBUG_MASK))
4395 u32 level_trace;
4396#endif
4397
4398 hldev = (struct __vxge_hw_device *) pci_get_drvdata(pdev);
4399
4400 if (hldev == NULL)
4401 return;
4402 dev = hldev->ndev;
4403 vdev = netdev_priv(dev);
4404
4405#if ((VXGE_DEBUG_INIT & VXGE_DEBUG_MASK) || \
4406 (VXGE_DEBUG_ENTRYEXIT & VXGE_DEBUG_MASK))
4407 level_trace = vdev->level_trace;
4408#endif
4409 vxge_debug_entryexit(level_trace,
4410 "%s:%d", __func__, __LINE__);
4411
4412 vxge_debug_init(level_trace,
4413 "%s : removing PCI device...", __func__);
4414 vxge_device_unregister(hldev);
4415
4416 for (i = 0; i < vdev->no_of_vpath; i++) {
4417 vxge_free_mac_add_list(&vdev->vpaths[i]);
4418 vdev->vpaths[i].mcast_addr_cnt = 0;
4419 vdev->vpaths[i].mac_addr_cnt = 0;
4420 }
4421
4422 kfree(vdev->vpaths);
4423
4424 iounmap(vdev->bar0);
703da5a1 4425
5dbc9011
SS		 4426 pci_disable_sriov(pdev);
4427
703da5a1
RV		 4428 /* we are safe to free it now */
4429 free_netdev(dev);
4430
4431 vxge_debug_init(level_trace,
4432 "%s:%d Device unregistered", __func__, __LINE__);
4433
4434 vxge_hw_device_terminate(hldev);
4435
4436 pci_disable_device(pdev);
4437 pci_release_regions(pdev);
4438 pci_set_drvdata(pdev, NULL);
4439 vxge_debug_entryexit(level_trace,
4440 "%s:%d Exiting...", __func__, __LINE__);
4441}
4442
4443static struct pci_error_handlers vxge_err_handler = {
4444 .error_detected = vxge_io_error_detected,
4445 .slot_reset = vxge_io_slot_reset,
4446 .resume = vxge_io_resume,
4447};
4448
4449static struct pci_driver vxge_driver = {
4450 .name = VXGE_DRIVER_NAME,
4451 .id_table = vxge_id_table,
4452 .probe = vxge_probe,
4453 .remove = __devexit_p(vxge_remove),
4454#ifdef CONFIG_PM
4455 .suspend = vxge_pm_suspend,
4456 .resume = vxge_pm_resume,
4457#endif
4458 .err_handler = &vxge_err_handler,
4459};
4460
4461static int __init
4462vxge_starter(void)
4463{
4464 int ret = 0;
4465 char version[32];
4466 snprintf(version, 32, "%s", DRV_VERSION);
4467
4468 printk(KERN_CRIT "%s: Copyright(c) 2002-2009 Neterion Inc\n",
4469 VXGE_DRIVER_NAME);
4470 printk(KERN_CRIT "%s: Driver version: %s\n",
4471 VXGE_DRIVER_NAME, version);
4472
4473 verify_bandwidth();
4474
4475 driver_config = kzalloc(sizeof(struct vxge_drv_config), GFP_KERNEL);
4476 if (!driver_config)
4477 return -ENOMEM;
4478
4479 ret = pci_register_driver(&vxge_driver);
4480
4481 if (driver_config->config_dev_cnt &&
4482 (driver_config->config_dev_cnt != driver_config->total_dev_cnt))
4483 vxge_debug_init(VXGE_ERR,
4484 "%s: Configured %d of %d devices",
4485 VXGE_DRIVER_NAME, driver_config->config_dev_cnt,
4486 driver_config->total_dev_cnt);
4487
4488 if (ret)
4489 kfree(driver_config);
4490
4491 return ret;
4492}
4493
4494static void __exit
4495vxge_closer(void)
4496{
4497 pci_unregister_driver(&vxge_driver);
4498 kfree(driver_config);
4499}
4500module_init(vxge_starter);
4501module_exit(vxge_closer);
Clone of davem's net-next-2.6 tree