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vxge: Handle errors in vxge_hw_vpath_fw_api
[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*
926bd900 10* vxge-main.c: Driver for Exar Corp's X3100 Series 10GbE PCIe I/O
703da5a1 11* Virtualized Server Adapter.
926bd900 12* Copyright(c) 2002-2010 Exar Corp.
703da5a1
RV		 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
75f5e1c6
JP		 44#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
45
703da5a1
RV		 46#include <linux/if_vlan.h>
47#include <linux/pci.h>
5a0e3ad6 48#include <linux/slab.h>
2b05e002 49#include <linux/tcp.h>
703da5a1
RV		 50#include <net/ip.h>
51#include <linux/netdevice.h>
52#include <linux/etherdevice.h>
e8ac1756 53#include <linux/firmware.h>
b81b3733 54#include <linux/net_tstamp.h>
703da5a1
RV		 55#include "vxge-main.h"
56#include "vxge-reg.h"
57
58MODULE_LICENSE("Dual BSD/GPL");
59MODULE_DESCRIPTION("Neterion's X3100 Series 10GbE PCIe I/O"
60 "Virtualized Server Adapter");
61
a3aa1884 62static DEFINE_PCI_DEVICE_TABLE(vxge_id_table) = {
703da5a1
RV		 63 {PCI_VENDOR_ID_S2IO, PCI_DEVICE_ID_TITAN_WIN, PCI_ANY_ID,
64 PCI_ANY_ID},
65 {PCI_VENDOR_ID_S2IO, PCI_DEVICE_ID_TITAN_UNI, PCI_ANY_ID,
66 PCI_ANY_ID},
67 {0}
68};
69
70MODULE_DEVICE_TABLE(pci, vxge_id_table);
71
72VXGE_MODULE_PARAM_INT(vlan_tag_strip, VXGE_HW_VPATH_RPA_STRIP_VLAN_TAG_ENABLE);
73VXGE_MODULE_PARAM_INT(addr_learn_en, VXGE_HW_MAC_ADDR_LEARN_DEFAULT);
74VXGE_MODULE_PARAM_INT(max_config_port, VXGE_MAX_CONFIG_PORT);
75VXGE_MODULE_PARAM_INT(max_config_vpath, VXGE_USE_DEFAULT);
76VXGE_MODULE_PARAM_INT(max_mac_vpath, VXGE_MAX_MAC_ADDR_COUNT);
77VXGE_MODULE_PARAM_INT(max_config_dev, VXGE_MAX_CONFIG_DEV);
78
79static u16 vpath_selector[VXGE_HW_MAX_VIRTUAL_PATHS] =
80 {0, 1, 3, 3, 7, 7, 7, 7, 15, 15, 15, 15, 15, 15, 15, 15, 31};
81static unsigned int bw_percentage[VXGE_HW_MAX_VIRTUAL_PATHS] =
82 {[0 ...(VXGE_HW_MAX_VIRTUAL_PATHS - 1)] = 0xFF};
83module_param_array(bw_percentage, uint, NULL, 0);
84
85static struct vxge_drv_config *driver_config;
86
42821a5b 87static enum vxge_hw_status vxge_add_mac_addr(struct vxgedev *vdev,
88 struct macInfo *mac);
89static enum vxge_hw_status vxge_del_mac_addr(struct vxgedev *vdev,
90 struct macInfo *mac);
91static int vxge_mac_list_add(struct vxge_vpath *vpath, struct macInfo *mac);
92static int vxge_mac_list_del(struct vxge_vpath *vpath, struct macInfo *mac);
93static enum vxge_hw_status vxge_restore_vpath_vid_table(struct vxge_vpath *vpath);
94static enum vxge_hw_status vxge_restore_vpath_mac_addr(struct vxge_vpath *vpath);
42821a5b 95
703da5a1
RV		 96static inline int is_vxge_card_up(struct vxgedev *vdev)
97{
98 return test_bit(__VXGE_STATE_CARD_UP, &vdev->state);
99}
100
101static inline void VXGE_COMPLETE_VPATH_TX(struct vxge_fifo *fifo)
102{
ff67df55
BL		 103 struct sk_buff **skb_ptr = NULL;
104 struct sk_buff **temp;
105#define NR_SKB_COMPLETED 128
106 struct sk_buff *completed[NR_SKB_COMPLETED];
107 int more;
703da5a1 108
ff67df55
BL		 109 do {
110 more = 0;
111 skb_ptr = completed;
112
98f45da2 113 if (__netif_tx_trylock(fifo->txq)) {
ff67df55
BL		 114 vxge_hw_vpath_poll_tx(fifo->handle, &skb_ptr,
115 NR_SKB_COMPLETED, &more);
98f45da2 116 __netif_tx_unlock(fifo->txq);
ff67df55 117 }
98f45da2 118
ff67df55
BL		 119 /* free SKBs */
120 for (temp = completed; temp != skb_ptr; temp++)
121 dev_kfree_skb_irq(*temp);
98f45da2 122 } while (more);
703da5a1
RV		 123}
124
125static inline void VXGE_COMPLETE_ALL_TX(struct vxgedev *vdev)
126{
127 int i;
128
129 /* Complete all transmits */
130 for (i = 0; i < vdev->no_of_vpath; i++)
131 VXGE_COMPLETE_VPATH_TX(&vdev->vpaths[i].fifo);
132}
133
134static inline void VXGE_COMPLETE_ALL_RX(struct vxgedev *vdev)
135{
136 int i;
137 struct vxge_ring *ring;
138
139 /* Complete all receives*/
140 for (i = 0; i < vdev->no_of_vpath; i++) {
141 ring = &vdev->vpaths[i].ring;
142 vxge_hw_vpath_poll_rx(ring->handle);
143 }
144}
145
703da5a1
RV		 146/*
147 * vxge_callback_link_up
148 *
149 * This function is called during interrupt context to notify link up state
150 * change.
151 */
42821a5b 152static void
703da5a1
RV		 153vxge_callback_link_up(struct __vxge_hw_device *hldev)
154{
155 struct net_device *dev = hldev->ndev;
156 struct vxgedev *vdev = (struct vxgedev *)netdev_priv(dev);
157
158 vxge_debug_entryexit(VXGE_TRACE, "%s: %s:%d",
159 vdev->ndev->name, __func__, __LINE__);
75f5e1c6 160 netdev_notice(vdev->ndev, "Link Up\n");
703da5a1
RV		 161 vdev->stats.link_up++;
162
163 netif_carrier_on(vdev->ndev);
d03848e0 164 netif_tx_wake_all_queues(vdev->ndev);
703da5a1
RV		 165
166 vxge_debug_entryexit(VXGE_TRACE,
167 "%s: %s:%d Exiting...", vdev->ndev->name, __func__, __LINE__);
168}
169
170/*
171 * vxge_callback_link_down
172 *
173 * This function is called during interrupt context to notify link down state
174 * change.
175 */
42821a5b 176static void
703da5a1
RV		 177vxge_callback_link_down(struct __vxge_hw_device *hldev)
178{
179 struct net_device *dev = hldev->ndev;
180 struct vxgedev *vdev = (struct vxgedev *)netdev_priv(dev);
181
182 vxge_debug_entryexit(VXGE_TRACE,
183 "%s: %s:%d", vdev->ndev->name, __func__, __LINE__);
75f5e1c6 184 netdev_notice(vdev->ndev, "Link Down\n");
703da5a1
RV		 185
186 vdev->stats.link_down++;
187 netif_carrier_off(vdev->ndev);
d03848e0 188 netif_tx_stop_all_queues(vdev->ndev);
703da5a1
RV		 189
190 vxge_debug_entryexit(VXGE_TRACE,
191 "%s: %s:%d Exiting...", vdev->ndev->name, __func__, __LINE__);
192}
193
194/*
195 * vxge_rx_alloc
196 *
197 * Allocate SKB.
198 */
199static struct sk_buff*
200vxge_rx_alloc(void *dtrh, struct vxge_ring *ring, const int skb_size)
201{
202 struct net_device *dev;
203 struct sk_buff *skb;
204 struct vxge_rx_priv *rx_priv;
205
206 dev = ring->ndev;
207 vxge_debug_entryexit(VXGE_TRACE, "%s: %s:%d",
208 ring->ndev->name, __func__, __LINE__);
209
210 rx_priv = vxge_hw_ring_rxd_private_get(dtrh);
211
212 /* try to allocate skb first. this one may fail */
213 skb = netdev_alloc_skb(dev, skb_size +
214 VXGE_HW_HEADER_ETHERNET_II_802_3_ALIGN);
215 if (skb == NULL) {
216 vxge_debug_mem(VXGE_ERR,
217 "%s: out of memory to allocate SKB", dev->name);
218 ring->stats.skb_alloc_fail++;
219 return NULL;
220 }
221
222 vxge_debug_mem(VXGE_TRACE,
223 "%s: %s:%d Skb : 0x%p", ring->ndev->name,
224 __func__, __LINE__, skb);
225
226 skb_reserve(skb, VXGE_HW_HEADER_ETHERNET_II_802_3_ALIGN);
227
228 rx_priv->skb = skb;
ea11bbe0 229 rx_priv->skb_data = NULL;
703da5a1
RV		 230 rx_priv->data_size = skb_size;
231 vxge_debug_entryexit(VXGE_TRACE,
232 "%s: %s:%d Exiting...", ring->ndev->name, __func__, __LINE__);
233
234 return skb;
235}
236
237/*
238 * vxge_rx_map
239 */
240static int vxge_rx_map(void *dtrh, struct vxge_ring *ring)
241{
242 struct vxge_rx_priv *rx_priv;
243 dma_addr_t dma_addr;
244
245 vxge_debug_entryexit(VXGE_TRACE, "%s: %s:%d",
246 ring->ndev->name, __func__, __LINE__);
247 rx_priv = vxge_hw_ring_rxd_private_get(dtrh);
248
ea11bbe0
BL		 249 rx_priv->skb_data = rx_priv->skb->data;
250 dma_addr = pci_map_single(ring->pdev, rx_priv->skb_data,
703da5a1
RV		 251 rx_priv->data_size, PCI_DMA_FROMDEVICE);
252
fa15e99b 253 if (unlikely(pci_dma_mapping_error(ring->pdev, dma_addr))) {
703da5a1
RV		 254 ring->stats.pci_map_fail++;
255 return -EIO;
256 }
257 vxge_debug_mem(VXGE_TRACE,
258 "%s: %s:%d 1 buffer mode dma_addr = 0x%llx",
259 ring->ndev->name, __func__, __LINE__,
260 (unsigned long long)dma_addr);
261 vxge_hw_ring_rxd_1b_set(dtrh, dma_addr, rx_priv->data_size);
262
263 rx_priv->data_dma = dma_addr;
264 vxge_debug_entryexit(VXGE_TRACE,
265 "%s: %s:%d Exiting...", ring->ndev->name, __func__, __LINE__);
266
267 return 0;
268}
269
270/*
271 * vxge_rx_initial_replenish
272 * Allocation of RxD as an initial replenish procedure.
273 */
274static enum vxge_hw_status
275vxge_rx_initial_replenish(void *dtrh, void *userdata)
276{
277 struct vxge_ring *ring = (struct vxge_ring *)userdata;
278 struct vxge_rx_priv *rx_priv;
279
280 vxge_debug_entryexit(VXGE_TRACE, "%s: %s:%d",
281 ring->ndev->name, __func__, __LINE__);
282 if (vxge_rx_alloc(dtrh, ring,
283 VXGE_LL_MAX_FRAME_SIZE(ring->ndev)) == NULL)
284 return VXGE_HW_FAIL;
285
286 if (vxge_rx_map(dtrh, ring)) {
287 rx_priv = vxge_hw_ring_rxd_private_get(dtrh);
288 dev_kfree_skb(rx_priv->skb);
289
290 return VXGE_HW_FAIL;
291 }
292 vxge_debug_entryexit(VXGE_TRACE,
293 "%s: %s:%d Exiting...", ring->ndev->name, __func__, __LINE__);
294
295 return VXGE_HW_OK;
296}
297
298static inline void
299vxge_rx_complete(struct vxge_ring *ring, struct sk_buff *skb, u16 vlan,
300 int pkt_length, struct vxge_hw_ring_rxd_info *ext_info)
301{
302
303 vxge_debug_entryexit(VXGE_TRACE, "%s: %s:%d",
304 ring->ndev->name, __func__, __LINE__);
305 skb_record_rx_queue(skb, ring->driver_id);
306 skb->protocol = eth_type_trans(skb, ring->ndev);
307
308 ring->stats.rx_frms++;
309 ring->stats.rx_bytes += pkt_length;
310
311 if (skb->pkt_type == PACKET_MULTICAST)
312 ring->stats.rx_mcast++;
313
314 vxge_debug_rx(VXGE_TRACE,
315 "%s: %s:%d skb protocol = %d",
316 ring->ndev->name, __func__, __LINE__, skb->protocol);
317
318 if (ring->gro_enable) {
319 if (ring->vlgrp && ext_info->vlan &&
320 (ring->vlan_tag_strip ==
321 VXGE_HW_VPATH_RPA_STRIP_VLAN_TAG_ENABLE))
a5d165b5 322 vlan_gro_receive(ring->napi_p, ring->vlgrp,
703da5a1
RV		 323 ext_info->vlan, skb);
324 else
a5d165b5 325 napi_gro_receive(ring->napi_p, skb);
703da5a1
RV		 326 } else {
327 if (ring->vlgrp && vlan &&
328 (ring->vlan_tag_strip ==
329 VXGE_HW_VPATH_RPA_STRIP_VLAN_TAG_ENABLE))
330 vlan_hwaccel_receive_skb(skb, ring->vlgrp, vlan);
331 else
332 netif_receive_skb(skb);
333 }
334 vxge_debug_entryexit(VXGE_TRACE,
335 "%s: %s:%d Exiting...", ring->ndev->name, __func__, __LINE__);
336}
337
338static inline void vxge_re_pre_post(void *dtr, struct vxge_ring *ring,
339 struct vxge_rx_priv *rx_priv)
340{
341 pci_dma_sync_single_for_device(ring->pdev,
342 rx_priv->data_dma, rx_priv->data_size, PCI_DMA_FROMDEVICE);
343
344 vxge_hw_ring_rxd_1b_set(dtr, rx_priv->data_dma, rx_priv->data_size);
345 vxge_hw_ring_rxd_pre_post(ring->handle, dtr);
346}
347
348static inline void vxge_post(int *dtr_cnt, void **first_dtr,
349 void *post_dtr, struct __vxge_hw_ring *ringh)
350{
351 int dtr_count = *dtr_cnt;
352 if ((*dtr_cnt % VXGE_HW_RXSYNC_FREQ_CNT) == 0) {
353 if (*first_dtr)
354 vxge_hw_ring_rxd_post_post_wmb(ringh, *first_dtr);
355 *first_dtr = post_dtr;
356 } else
357 vxge_hw_ring_rxd_post_post(ringh, post_dtr);
358 dtr_count++;
359 *dtr_cnt = dtr_count;
360}
361
362/*
363 * vxge_rx_1b_compl
364 *
365 * If the interrupt is because of a received frame or if the receive ring
366 * contains fresh as yet un-processed frames, this function is called.
367 */
42821a5b 368static enum vxge_hw_status
703da5a1
RV		 369vxge_rx_1b_compl(struct __vxge_hw_ring *ringh, void *dtr,
370 u8 t_code, void *userdata)
371{
372 struct vxge_ring *ring = (struct vxge_ring *)userdata;
b81b3733 373 struct net_device *dev = ring->ndev;
703da5a1
RV		 374 unsigned int dma_sizes;
375 void *first_dtr = NULL;
376 int dtr_cnt = 0;
377 int data_size;
378 dma_addr_t data_dma;
379 int pkt_length;
380 struct sk_buff *skb;
381 struct vxge_rx_priv *rx_priv;
382 struct vxge_hw_ring_rxd_info ext_info;
383 vxge_debug_entryexit(VXGE_TRACE, "%s: %s:%d",
384 ring->ndev->name, __func__, __LINE__);
385 ring->pkts_processed = 0;
386
3363276f 387 vxge_hw_ring_replenish(ringh);
703da5a1
RV		 388
389 do {
3f23e436 390 prefetch((char *)dtr + L1_CACHE_BYTES);
703da5a1
RV		 391 rx_priv = vxge_hw_ring_rxd_private_get(dtr);
392 skb = rx_priv->skb;
393 data_size = rx_priv->data_size;
394 data_dma = rx_priv->data_dma;
ea11bbe0 395 prefetch(rx_priv->skb_data);
703da5a1
RV		 396
397 vxge_debug_rx(VXGE_TRACE,
398 "%s: %s:%d skb = 0x%p",
399 ring->ndev->name, __func__, __LINE__, skb);
400
401 vxge_hw_ring_rxd_1b_get(ringh, dtr, &dma_sizes);
402 pkt_length = dma_sizes;
403
22fa125e
SH		 404 pkt_length -= ETH_FCS_LEN;
405
703da5a1
RV		 406 vxge_debug_rx(VXGE_TRACE,
407 "%s: %s:%d Packet Length = %d",
408 ring->ndev->name, __func__, __LINE__, pkt_length);
409
410 vxge_hw_ring_rxd_1b_info_get(ringh, dtr, &ext_info);
411
412 /* check skb validity */
413 vxge_assert(skb);
414
415 prefetch((char *)skb + L1_CACHE_BYTES);
416 if (unlikely(t_code)) {
417
418 if (vxge_hw_ring_handle_tcode(ringh, dtr, t_code) !=
419 VXGE_HW_OK) {
420
421 ring->stats.rx_errors++;
422 vxge_debug_rx(VXGE_TRACE,
423 "%s: %s :%d Rx T_code is %d",
424 ring->ndev->name, __func__,
425 __LINE__, t_code);
426
427 /* If the t_code is not supported and if the
428 * t_code is other than 0x5 (unparseable packet
429 * such as unknown UPV6 header), Drop it !!!
430 */
431 vxge_re_pre_post(dtr, ring, rx_priv);
432
433 vxge_post(&dtr_cnt, &first_dtr, dtr, ringh);
434 ring->stats.rx_dropped++;
435 continue;
436 }
437 }
438
439 if (pkt_length > VXGE_LL_RX_COPY_THRESHOLD) {
440
441 if (vxge_rx_alloc(dtr, ring, data_size) != NULL) {
442
443 if (!vxge_rx_map(dtr, ring)) {
444 skb_put(skb, pkt_length);
445
446 pci_unmap_single(ring->pdev, data_dma,
447 data_size, PCI_DMA_FROMDEVICE);
448
449 vxge_hw_ring_rxd_pre_post(ringh, dtr);
450 vxge_post(&dtr_cnt, &first_dtr, dtr,
451 ringh);
452 } else {
453 dev_kfree_skb(rx_priv->skb);
454 rx_priv->skb = skb;
455 rx_priv->data_size = data_size;
456 vxge_re_pre_post(dtr, ring, rx_priv);
457
458 vxge_post(&dtr_cnt, &first_dtr, dtr,
459 ringh);
460 ring->stats.rx_dropped++;
461 break;
462 }
463 } else {
464 vxge_re_pre_post(dtr, ring, rx_priv);
465
466 vxge_post(&dtr_cnt, &first_dtr, dtr, ringh);
467 ring->stats.rx_dropped++;
468 break;
469 }
470 } else {
471 struct sk_buff *skb_up;
472
473 skb_up = netdev_alloc_skb(dev, pkt_length +
474 VXGE_HW_HEADER_ETHERNET_II_802_3_ALIGN);
475 if (skb_up != NULL) {
476 skb_reserve(skb_up,
477 VXGE_HW_HEADER_ETHERNET_II_802_3_ALIGN);
478
479 pci_dma_sync_single_for_cpu(ring->pdev,
480 data_dma, data_size,
481 PCI_DMA_FROMDEVICE);
482
483 vxge_debug_mem(VXGE_TRACE,
484 "%s: %s:%d skb_up = %p",
485 ring->ndev->name, __func__,
486 __LINE__, skb);
487 memcpy(skb_up->data, skb->data, pkt_length);
488
489 vxge_re_pre_post(dtr, ring, rx_priv);
490
491 vxge_post(&dtr_cnt, &first_dtr, dtr,
492 ringh);
493 /* will netif_rx small SKB instead */
494 skb = skb_up;
495 skb_put(skb, pkt_length);
496 } else {
497 vxge_re_pre_post(dtr, ring, rx_priv);
498
499 vxge_post(&dtr_cnt, &first_dtr, dtr, ringh);
500 vxge_debug_rx(VXGE_ERR,
501 "%s: vxge_rx_1b_compl: out of "
502 "memory", dev->name);
503 ring->stats.skb_alloc_fail++;
504 break;
505 }
506 }
507
508 if ((ext_info.proto & VXGE_HW_FRAME_PROTO_TCP_OR_UDP) &&
509 !(ext_info.proto & VXGE_HW_FRAME_PROTO_IP_FRAG) &&
510 ring->rx_csum && /* Offload Rx side CSUM */
511 ext_info.l3_cksum == VXGE_HW_L3_CKSUM_OK &&
512 ext_info.l4_cksum == VXGE_HW_L4_CKSUM_OK)
513 skb->ip_summed = CHECKSUM_UNNECESSARY;
514 else
bc8acf2c 515 skb_checksum_none_assert(skb);
703da5a1 516
b81b3733
JM		 517
518 if (ring->rx_hwts) {
519 struct skb_shared_hwtstamps *skb_hwts;
520 u32 ns = *(u32 *)(skb->head + pkt_length);
521
522 skb_hwts = skb_hwtstamps(skb);
523 skb_hwts->hwtstamp = ns_to_ktime(ns);
524 skb_hwts->syststamp.tv64 = 0;
525 }
526
47f01db4
JM		 527 /* rth_hash_type and rth_it_hit are non-zero regardless of
528 * whether rss is enabled. Only the rth_value is zero/non-zero
529 * if rss is disabled/enabled, so key off of that.
530 */
531 if (ext_info.rth_value)
532 skb->rxhash = ext_info.rth_value;
533
703da5a1
RV		 534 vxge_rx_complete(ring, skb, ext_info.vlan,
535 pkt_length, &ext_info);
536
537 ring->budget--;
538 ring->pkts_processed++;
539 if (!ring->budget)
540 break;
541
542 } while (vxge_hw_ring_rxd_next_completed(ringh, &dtr,
543 &t_code) == VXGE_HW_OK);
544
545 if (first_dtr)
546 vxge_hw_ring_rxd_post_post_wmb(ringh, first_dtr);
547
703da5a1
RV		 548 vxge_debug_entryexit(VXGE_TRACE,
549 "%s:%d Exiting...",
550 __func__, __LINE__);
551 return VXGE_HW_OK;
552}
553
554/*
555 * vxge_xmit_compl
556 *
557 * If an interrupt was raised to indicate DMA complete of the Tx packet,
558 * this function is called. It identifies the last TxD whose buffer was
559 * freed and frees all skbs whose data have already DMA'ed into the NICs
560 * internal memory.
561 */
42821a5b 562static enum vxge_hw_status
703da5a1
RV		 563vxge_xmit_compl(struct __vxge_hw_fifo *fifo_hw, void *dtr,
564 enum vxge_hw_fifo_tcode t_code, void *userdata,
ff67df55 565 struct sk_buff ***skb_ptr, int nr_skb, int *more)
703da5a1
RV		 566{
567 struct vxge_fifo *fifo = (struct vxge_fifo *)userdata;
ff67df55 568 struct sk_buff *skb, **done_skb = *skb_ptr;
703da5a1
RV		 569 int pkt_cnt = 0;
570
571 vxge_debug_entryexit(VXGE_TRACE,
572 "%s:%d Entered....", __func__, __LINE__);
573
574 do {
575 int frg_cnt;
576 skb_frag_t *frag;
577 int i = 0, j;
578 struct vxge_tx_priv *txd_priv =
579 vxge_hw_fifo_txdl_private_get(dtr);
580
581 skb = txd_priv->skb;
582 frg_cnt = skb_shinfo(skb)->nr_frags;
583 frag = &skb_shinfo(skb)->frags[0];
584
585 vxge_debug_tx(VXGE_TRACE,
586 "%s: %s:%d fifo_hw = %p dtr = %p "
587 "tcode = 0x%x", fifo->ndev->name, __func__,
588 __LINE__, fifo_hw, dtr, t_code);
589 /* check skb validity */
590 vxge_assert(skb);
591 vxge_debug_tx(VXGE_TRACE,
592 "%s: %s:%d skb = %p itxd_priv = %p frg_cnt = %d",
593 fifo->ndev->name, __func__, __LINE__,
594 skb, txd_priv, frg_cnt);
595 if (unlikely(t_code)) {
596 fifo->stats.tx_errors++;
597 vxge_debug_tx(VXGE_ERR,
598 "%s: tx: dtr %p completed due to "
599 "error t_code %01x", fifo->ndev->name,
600 dtr, t_code);
601 vxge_hw_fifo_handle_tcode(fifo_hw, dtr, t_code);
602 }
603
604 /* for unfragmented skb */
605 pci_unmap_single(fifo->pdev, txd_priv->dma_buffers[i++],
606 skb_headlen(skb), PCI_DMA_TODEVICE);
607
608 for (j = 0; j < frg_cnt; j++) {
609 pci_unmap_page(fifo->pdev,
610 txd_priv->dma_buffers[i++],
611 frag->size, PCI_DMA_TODEVICE);
612 frag += 1;
613 }
614
615 vxge_hw_fifo_txdl_free(fifo_hw, dtr);
616
617 /* Updating the statistics block */
618 fifo->stats.tx_frms++;
619 fifo->stats.tx_bytes += skb->len;
620
ff67df55
BL		 621 *done_skb++ = skb;
622
623 if (--nr_skb <= 0) {
624 *more = 1;
625 break;
626 }
703da5a1
RV		 627
628 pkt_cnt++;
629 if (pkt_cnt > fifo->indicate_max_pkts)
630 break;
631
632 } while (vxge_hw_fifo_txdl_next_completed(fifo_hw,
633 &dtr, &t_code) == VXGE_HW_OK);
634
ff67df55 635 *skb_ptr = done_skb;
98f45da2
JM		 636 if (netif_tx_queue_stopped(fifo->txq))
637 netif_tx_wake_queue(fifo->txq);
703da5a1 638
703da5a1
RV		 639 vxge_debug_entryexit(VXGE_TRACE,
640 "%s: %s:%d Exiting...",
641 fifo->ndev->name, __func__, __LINE__);
642 return VXGE_HW_OK;
643}
644
28679751 645/* select a vpath to transmit the packet */
98f45da2 646static u32 vxge_get_vpath_no(struct vxgedev *vdev, struct sk_buff *skb)
703da5a1
RV		 647{
648 u16 queue_len, counter = 0;
649 if (skb->protocol == htons(ETH_P_IP)) {
650 struct iphdr *ip;
651 struct tcphdr *th;
652
653 ip = ip_hdr(skb);
654
655 if ((ip->frag_off & htons(IP_OFFSET|IP_MF)) == 0) {
656 th = (struct tcphdr *)(((unsigned char *)ip) +
657 ip->ihl*4);
658
659 queue_len = vdev->no_of_vpath;
660 counter = (ntohs(th->source) +
661 ntohs(th->dest)) &
662 vdev->vpath_selector[queue_len - 1];
663 if (counter >= queue_len)
664 counter = queue_len - 1;
703da5a1
RV		 665 }
666 }
667 return counter;
668}
669
670static enum vxge_hw_status vxge_search_mac_addr_in_list(
671 struct vxge_vpath *vpath, u64 del_mac)
672{
673 struct list_head *entry, *next;
674 list_for_each_safe(entry, next, &vpath->mac_addr_list) {
675 if (((struct vxge_mac_addrs *)entry)->macaddr == del_mac)
676 return TRUE;
677 }
678 return FALSE;
679}
680
681static int vxge_learn_mac(struct vxgedev *vdev, u8 *mac_header)
682{
683 struct macInfo mac_info;
684 u8 *mac_address = NULL;
685 u64 mac_addr = 0, vpath_vector = 0;
686 int vpath_idx = 0;
687 enum vxge_hw_status status = VXGE_HW_OK;
688 struct vxge_vpath *vpath = NULL;
689 struct __vxge_hw_device *hldev;
690
691 hldev = (struct __vxge_hw_device *) pci_get_drvdata(vdev->pdev);
692
693 mac_address = (u8 *)&mac_addr;
694 memcpy(mac_address, mac_header, ETH_ALEN);
695
696 /* Is this mac address already in the list? */
697 for (vpath_idx = 0; vpath_idx < vdev->no_of_vpath; vpath_idx++) {
698 vpath = &vdev->vpaths[vpath_idx];
699 if (vxge_search_mac_addr_in_list(vpath, mac_addr))
700 return vpath_idx;
701 }
702
703 memset(&mac_info, 0, sizeof(struct macInfo));
704 memcpy(mac_info.macaddr, mac_header, ETH_ALEN);
705
706 /* Any vpath has room to add mac address to its da table? */
707 for (vpath_idx = 0; vpath_idx < vdev->no_of_vpath; vpath_idx++) {
708 vpath = &vdev->vpaths[vpath_idx];
709 if (vpath->mac_addr_cnt < vpath->max_mac_addr_cnt) {
710 /* Add this mac address to this vpath */
711 mac_info.vpath_no = vpath_idx;
712 mac_info.state = VXGE_LL_MAC_ADDR_IN_DA_TABLE;
713 status = vxge_add_mac_addr(vdev, &mac_info);
714 if (status != VXGE_HW_OK)
715 return -EPERM;
716 return vpath_idx;
717 }
718 }
719
720 mac_info.state = VXGE_LL_MAC_ADDR_IN_LIST;
721 vpath_idx = 0;
722 mac_info.vpath_no = vpath_idx;
723 /* Is the first vpath already selected as catch-basin ? */
724 vpath = &vdev->vpaths[vpath_idx];
725 if (vpath->mac_addr_cnt > vpath->max_mac_addr_cnt) {
726 /* Add this mac address to this vpath */
727 if (FALSE == vxge_mac_list_add(vpath, &mac_info))
728 return -EPERM;
729 return vpath_idx;
730 }
731
732 /* Select first vpath as catch-basin */
733 vpath_vector = vxge_mBIT(vpath->device_id);
734 status = vxge_hw_mgmt_reg_write(vpath->vdev->devh,
735 vxge_hw_mgmt_reg_type_mrpcim,
736 0,
737 (ulong)offsetof(
738 struct vxge_hw_mrpcim_reg,
739 rts_mgr_cbasin_cfg),
740 vpath_vector);
741 if (status != VXGE_HW_OK) {
742 vxge_debug_tx(VXGE_ERR,
743 "%s: Unable to set the vpath-%d in catch-basin mode",
744 VXGE_DRIVER_NAME, vpath->device_id);
745 return -EPERM;
746 }
747
748 if (FALSE == vxge_mac_list_add(vpath, &mac_info))
749 return -EPERM;
750
751 return vpath_idx;
752}
753
754/**
755 * vxge_xmit
756 * @skb : the socket buffer containing the Tx data.
757 * @dev : device pointer.
758 *
759 * This function is the Tx entry point of the driver. Neterion NIC supports
760 * certain protocol assist features on Tx side, namely CSO, S/G, LSO.
703da5a1 761*/
61357325 762static netdev_tx_t
703da5a1
RV		 763vxge_xmit(struct sk_buff *skb, struct net_device *dev)
764{
765 struct vxge_fifo *fifo = NULL;
766 void *dtr_priv;
767 void *dtr = NULL;
768 struct vxgedev *vdev = NULL;
769 enum vxge_hw_status status;
770 int frg_cnt, first_frg_len;
771 skb_frag_t *frag;
772 int i = 0, j = 0, avail;
773 u64 dma_pointer;
774 struct vxge_tx_priv *txdl_priv = NULL;
775 struct __vxge_hw_fifo *fifo_hw;
703da5a1 776 int offload_type;
703da5a1 777 int vpath_no = 0;
703da5a1
RV		 778
779 vxge_debug_entryexit(VXGE_TRACE, "%s: %s:%d",
780 dev->name, __func__, __LINE__);
781
782 /* A buffer with no data will be dropped */
783 if (unlikely(skb->len <= 0)) {
784 vxge_debug_tx(VXGE_ERR,
785 "%s: Buffer has no data..", dev->name);
786 dev_kfree_skb(skb);
787 return NETDEV_TX_OK;
788 }
789
790 vdev = (struct vxgedev *)netdev_priv(dev);
791
792 if (unlikely(!is_vxge_card_up(vdev))) {
793 vxge_debug_tx(VXGE_ERR,
794 "%s: vdev not initialized", dev->name);
795 dev_kfree_skb(skb);
796 return NETDEV_TX_OK;
797 }
798
799 if (vdev->config.addr_learn_en) {
800 vpath_no = vxge_learn_mac(vdev, skb->data + ETH_ALEN);
801 if (vpath_no == -EPERM) {
802 vxge_debug_tx(VXGE_ERR,
803 "%s: Failed to store the mac address",
804 dev->name);
805 dev_kfree_skb(skb);
806 return NETDEV_TX_OK;
807 }
808 }
809
810 if (vdev->config.tx_steering_type == TX_MULTIQ_STEERING)
811 vpath_no = skb_get_queue_mapping(skb);
812 else if (vdev->config.tx_steering_type == TX_PORT_STEERING)
98f45da2 813 vpath_no = vxge_get_vpath_no(vdev, skb);
703da5a1
RV		 814
815 vxge_debug_tx(VXGE_TRACE, "%s: vpath_no= %d", dev->name, vpath_no);
816
817 if (vpath_no >= vdev->no_of_vpath)
818 vpath_no = 0;
819
820 fifo = &vdev->vpaths[vpath_no].fifo;
821 fifo_hw = fifo->handle;
822
98f45da2 823 if (netif_tx_queue_stopped(fifo->txq))
d03848e0 824 return NETDEV_TX_BUSY;
d03848e0 825
703da5a1
RV		 826 avail = vxge_hw_fifo_free_txdl_count_get(fifo_hw);
827 if (avail == 0) {
828 vxge_debug_tx(VXGE_ERR,
829 "%s: No free TXDs available", dev->name);
830 fifo->stats.txd_not_free++;
98f45da2 831 goto _exit0;
703da5a1
RV		 832 }
833
4403b371
BL		 834 /* Last TXD? Stop tx queue to avoid dropping packets. TX
835 * completion will resume the queue.
836 */
837 if (avail == 1)
98f45da2 838 netif_tx_stop_queue(fifo->txq);
4403b371 839
703da5a1
RV		 840 status = vxge_hw_fifo_txdl_reserve(fifo_hw, &dtr, &dtr_priv);
841 if (unlikely(status != VXGE_HW_OK)) {
842 vxge_debug_tx(VXGE_ERR,
843 "%s: Out of descriptors .", dev->name);
844 fifo->stats.txd_out_of_desc++;
98f45da2 845 goto _exit0;
703da5a1
RV		 846 }
847
848 vxge_debug_tx(VXGE_TRACE,
849 "%s: %s:%d fifo_hw = %p dtr = %p dtr_priv = %p",
850 dev->name, __func__, __LINE__,
851 fifo_hw, dtr, dtr_priv);
852
eab6d18d 853 if (vlan_tx_tag_present(skb)) {
703da5a1
RV		 854 u16 vlan_tag = vlan_tx_tag_get(skb);
855 vxge_hw_fifo_txdl_vlan_set(dtr, vlan_tag);
856 }
857
858 first_frg_len = skb_headlen(skb);
859
860 dma_pointer = pci_map_single(fifo->pdev, skb->data, first_frg_len,
861 PCI_DMA_TODEVICE);
862
863 if (unlikely(pci_dma_mapping_error(fifo->pdev, dma_pointer))) {
864 vxge_hw_fifo_txdl_free(fifo_hw, dtr);
703da5a1 865 fifo->stats.pci_map_fail++;
98f45da2 866 goto _exit0;
703da5a1
RV		 867 }
868
869 txdl_priv = vxge_hw_fifo_txdl_private_get(dtr);
870 txdl_priv->skb = skb;
871 txdl_priv->dma_buffers[j] = dma_pointer;
872
873 frg_cnt = skb_shinfo(skb)->nr_frags;
874 vxge_debug_tx(VXGE_TRACE,
875 "%s: %s:%d skb = %p txdl_priv = %p "
876 "frag_cnt = %d dma_pointer = 0x%llx", dev->name,
877 __func__, __LINE__, skb, txdl_priv,
878 frg_cnt, (unsigned long long)dma_pointer);
879
880 vxge_hw_fifo_txdl_buffer_set(fifo_hw, dtr, j++, dma_pointer,
881 first_frg_len);
882
883 frag = &skb_shinfo(skb)->frags[0];
884 for (i = 0; i < frg_cnt; i++) {
885 /* ignore 0 length fragment */
886 if (!frag->size)
887 continue;
888
98f45da2 889 dma_pointer = (u64) pci_map_page(fifo->pdev, frag->page,
703da5a1
RV		 890 frag->page_offset, frag->size,
891 PCI_DMA_TODEVICE);
892
893 if (unlikely(pci_dma_mapping_error(fifo->pdev, dma_pointer)))
98f45da2 894 goto _exit2;
703da5a1
RV		 895 vxge_debug_tx(VXGE_TRACE,
896 "%s: %s:%d frag = %d dma_pointer = 0x%llx",
897 dev->name, __func__, __LINE__, i,
898 (unsigned long long)dma_pointer);
899
900 txdl_priv->dma_buffers[j] = dma_pointer;
901 vxge_hw_fifo_txdl_buffer_set(fifo_hw, dtr, j++, dma_pointer,
902 frag->size);
903 frag += 1;
904 }
905
906 offload_type = vxge_offload_type(skb);
907
908 if (offload_type & (SKB_GSO_TCPV4 | SKB_GSO_TCPV6)) {
703da5a1
RV		 909 int mss = vxge_tcp_mss(skb);
910 if (mss) {
98f45da2 911 vxge_debug_tx(VXGE_TRACE, "%s: %s:%d mss = %d",
703da5a1
RV		 912 dev->name, __func__, __LINE__, mss);
913 vxge_hw_fifo_txdl_mss_set(dtr, mss);
914 } else {
915 vxge_assert(skb->len <=
916 dev->mtu + VXGE_HW_MAC_HEADER_MAX_SIZE);
917 vxge_assert(0);
918 goto _exit1;
919 }
920 }
921
922 if (skb->ip_summed == CHECKSUM_PARTIAL)
923 vxge_hw_fifo_txdl_cksum_set_bits(dtr,
924 VXGE_HW_FIFO_TXD_TX_CKO_IPV4_EN |
925 VXGE_HW_FIFO_TXD_TX_CKO_TCP_EN |
926 VXGE_HW_FIFO_TXD_TX_CKO_UDP_EN);
927
928 vxge_hw_fifo_txdl_post(fifo_hw, dtr);
703da5a1 929
703da5a1
RV		 930 vxge_debug_entryexit(VXGE_TRACE, "%s: %s:%d Exiting...",
931 dev->name, __func__, __LINE__);
6ed10654 932 return NETDEV_TX_OK;
703da5a1 933
98f45da2 934_exit2:
703da5a1 935 vxge_debug_tx(VXGE_TRACE, "%s: pci_map_page failed", dev->name);
703da5a1
RV		 936_exit1:
937 j = 0;
938 frag = &skb_shinfo(skb)->frags[0];
939
940 pci_unmap_single(fifo->pdev, txdl_priv->dma_buffers[j++],
941 skb_headlen(skb), PCI_DMA_TODEVICE);
942
943 for (; j < i; j++) {
944 pci_unmap_page(fifo->pdev, txdl_priv->dma_buffers[j],
945 frag->size, PCI_DMA_TODEVICE);
946 frag += 1;
947 }
948
949 vxge_hw_fifo_txdl_free(fifo_hw, dtr);
98f45da2
JM		 950_exit0:
951 netif_tx_stop_queue(fifo->txq);
703da5a1 952 dev_kfree_skb(skb);
703da5a1 953
6ed10654 954 return NETDEV_TX_OK;
703da5a1
RV		 955}
956
957/*
958 * vxge_rx_term
959 *
960 * Function will be called by hw function to abort all outstanding receive
961 * descriptors.
962 */
963static void
964vxge_rx_term(void *dtrh, enum vxge_hw_rxd_state state, void *userdata)
965{
966 struct vxge_ring *ring = (struct vxge_ring *)userdata;
967 struct vxge_rx_priv *rx_priv =
968 vxge_hw_ring_rxd_private_get(dtrh);
969
970 vxge_debug_entryexit(VXGE_TRACE, "%s: %s:%d",
971 ring->ndev->name, __func__, __LINE__);
972 if (state != VXGE_HW_RXD_STATE_POSTED)
973 return;
974
975 pci_unmap_single(ring->pdev, rx_priv->data_dma,
976 rx_priv->data_size, PCI_DMA_FROMDEVICE);
977
978 dev_kfree_skb(rx_priv->skb);
ea11bbe0 979 rx_priv->skb_data = NULL;
703da5a1
RV		 980
981 vxge_debug_entryexit(VXGE_TRACE,
982 "%s: %s:%d Exiting...",
983 ring->ndev->name, __func__, __LINE__);
984}
985
986/*
987 * vxge_tx_term
988 *
989 * Function will be called to abort all outstanding tx descriptors
990 */
991static void
992vxge_tx_term(void *dtrh, enum vxge_hw_txdl_state state, void *userdata)
993{
994 struct vxge_fifo *fifo = (struct vxge_fifo *)userdata;
995 skb_frag_t *frag;
996 int i = 0, j, frg_cnt;
997 struct vxge_tx_priv *txd_priv = vxge_hw_fifo_txdl_private_get(dtrh);
998 struct sk_buff *skb = txd_priv->skb;
999
1000 vxge_debug_entryexit(VXGE_TRACE, "%s:%d", __func__, __LINE__);
1001
1002 if (state != VXGE_HW_TXDL_STATE_POSTED)
1003 return;
1004
1005 /* check skb validity */
1006 vxge_assert(skb);
1007 frg_cnt = skb_shinfo(skb)->nr_frags;
1008 frag = &skb_shinfo(skb)->frags[0];
1009
1010 /* for unfragmented skb */
1011 pci_unmap_single(fifo->pdev, txd_priv->dma_buffers[i++],
1012 skb_headlen(skb), PCI_DMA_TODEVICE);
1013
1014 for (j = 0; j < frg_cnt; j++) {
1015 pci_unmap_page(fifo->pdev, txd_priv->dma_buffers[i++],
1016 frag->size, PCI_DMA_TODEVICE);
1017 frag += 1;
1018 }
1019
1020 dev_kfree_skb(skb);
1021
1022 vxge_debug_entryexit(VXGE_TRACE,
1023 "%s:%d Exiting...", __func__, __LINE__);
1024}
1025
1026/**
1027 * vxge_set_multicast
1028 * @dev: pointer to the device structure
1029 *
1030 * Entry point for multicast address enable/disable
1031 * This function is a driver entry point which gets called by the kernel
1032 * whenever multicast addresses must be enabled/disabled. This also gets
1033 * called to set/reset promiscuous mode. Depending on the deivce flag, we
1034 * determine, if multicast address must be enabled or if promiscuous mode
1035 * is to be disabled etc.
1036 */
1037static void vxge_set_multicast(struct net_device *dev)
1038{
22bedad3 1039 struct netdev_hw_addr *ha;
703da5a1
RV		 1040 struct vxgedev *vdev;
1041 int i, mcast_cnt = 0;
7adf7d1b
JM		 1042 struct __vxge_hw_device *hldev;
1043 struct vxge_vpath *vpath;
703da5a1
RV		 1044 enum vxge_hw_status status = VXGE_HW_OK;
1045 struct macInfo mac_info;
1046 int vpath_idx = 0;
1047 struct vxge_mac_addrs *mac_entry;
1048 struct list_head *list_head;
1049 struct list_head *entry, *next;
1050 u8 *mac_address = NULL;
1051
1052 vxge_debug_entryexit(VXGE_TRACE,
1053 "%s:%d", __func__, __LINE__);
1054
1055 vdev = (struct vxgedev *)netdev_priv(dev);
1056 hldev = (struct __vxge_hw_device *)vdev->devh;
1057
1058 if (unlikely(!is_vxge_card_up(vdev)))
1059 return;
1060
1061 if ((dev->flags & IFF_ALLMULTI) && (!vdev->all_multi_flg)) {
1062 for (i = 0; i < vdev->no_of_vpath; i++) {
7adf7d1b
JM		 1063 vpath = &vdev->vpaths[i];
1064 vxge_assert(vpath->is_open);
1065 status = vxge_hw_vpath_mcast_enable(vpath->handle);
1066 if (status != VXGE_HW_OK)
1067 vxge_debug_init(VXGE_ERR, "failed to enable "
1068 "multicast, status %d", status);
703da5a1
RV		 1069 vdev->all_multi_flg = 1;
1070 }
7adf7d1b 1071 } else if (!(dev->flags & IFF_ALLMULTI) && (vdev->all_multi_flg)) {
703da5a1 1072 for (i = 0; i < vdev->no_of_vpath; i++) {
7adf7d1b
JM		 1073 vpath = &vdev->vpaths[i];
1074 vxge_assert(vpath->is_open);
1075 status = vxge_hw_vpath_mcast_disable(vpath->handle);
1076 if (status != VXGE_HW_OK)
1077 vxge_debug_init(VXGE_ERR, "failed to disable "
1078 "multicast, status %d", status);
1079 vdev->all_multi_flg = 0;
703da5a1
RV		 1080 }
1081 }
1082
703da5a1
RV		 1083
1084 if (!vdev->config.addr_learn_en) {
7adf7d1b
JM		 1085 for (i = 0; i < vdev->no_of_vpath; i++) {
1086 vpath = &vdev->vpaths[i];
1087 vxge_assert(vpath->is_open);
1088
1089 if (dev->flags & IFF_PROMISC)
703da5a1 1090 status = vxge_hw_vpath_promisc_enable(
7adf7d1b
JM		 1091 vpath->handle);
1092 else
703da5a1 1093 status = vxge_hw_vpath_promisc_disable(
7adf7d1b
JM		 1094 vpath->handle);
1095 if (status != VXGE_HW_OK)
1096 vxge_debug_init(VXGE_ERR, "failed to %s promisc"
1097 ", status %d", dev->flags&IFF_PROMISC ?
1098 "enable" : "disable", status);
703da5a1
RV		 1099 }
1100 }
1101
1102 memset(&mac_info, 0, sizeof(struct macInfo));
1103 /* Update individual M_CAST address list */
4cd24eaf 1104 if ((!vdev->all_multi_flg) && netdev_mc_count(dev)) {
703da5a1
RV		 1105 mcast_cnt = vdev->vpaths[0].mcast_addr_cnt;
1106 list_head = &vdev->vpaths[0].mac_addr_list;
4cd24eaf 1107 if ((netdev_mc_count(dev) +
703da5a1
RV		 1108 (vdev->vpaths[0].mac_addr_cnt - mcast_cnt)) >
1109 vdev->vpaths[0].max_mac_addr_cnt)
1110 goto _set_all_mcast;
1111
1112 /* Delete previous MC's */
1113 for (i = 0; i < mcast_cnt; i++) {
703da5a1 1114 list_for_each_safe(entry, next, list_head) {
703da5a1
RV		 1115 mac_entry = (struct vxge_mac_addrs *) entry;
1116 /* Copy the mac address to delete */
1117 mac_address = (u8 *)&mac_entry->macaddr;
1118 memcpy(mac_info.macaddr, mac_address, ETH_ALEN);
1119
1120 /* Is this a multicast address */
1121 if (0x01 & mac_info.macaddr[0]) {
1122 for (vpath_idx = 0; vpath_idx <
1123 vdev->no_of_vpath;
1124 vpath_idx++) {
1125 mac_info.vpath_no = vpath_idx;
1126 status = vxge_del_mac_addr(
1127 vdev,
1128 &mac_info);
1129 }
1130 }
1131 }
1132 }
1133
1134 /* Add new ones */
22bedad3
JP		 1135 netdev_for_each_mc_addr(ha, dev) {
1136 memcpy(mac_info.macaddr, ha->addr, ETH_ALEN);
703da5a1
RV		 1137 for (vpath_idx = 0; vpath_idx < vdev->no_of_vpath;
1138 vpath_idx++) {
1139 mac_info.vpath_no = vpath_idx;
1140 mac_info.state = VXGE_LL_MAC_ADDR_IN_DA_TABLE;
1141 status = vxge_add_mac_addr(vdev, &mac_info);
1142 if (status != VXGE_HW_OK) {
1143 vxge_debug_init(VXGE_ERR,
1144 "%s:%d Setting individual"
1145 "multicast address failed",
1146 __func__, __LINE__);
1147 goto _set_all_mcast;
1148 }
1149 }
1150 }
1151
1152 return;
1153_set_all_mcast:
1154 mcast_cnt = vdev->vpaths[0].mcast_addr_cnt;
1155 /* Delete previous MC's */
1156 for (i = 0; i < mcast_cnt; i++) {
703da5a1 1157 list_for_each_safe(entry, next, list_head) {
703da5a1
RV		 1158 mac_entry = (struct vxge_mac_addrs *) entry;
1159 /* Copy the mac address to delete */
1160 mac_address = (u8 *)&mac_entry->macaddr;
1161 memcpy(mac_info.macaddr, mac_address, ETH_ALEN);
1162
1163 /* Is this a multicast address */
1164 if (0x01 & mac_info.macaddr[0])
1165 break;
1166 }
1167
1168 for (vpath_idx = 0; vpath_idx < vdev->no_of_vpath;
1169 vpath_idx++) {
1170 mac_info.vpath_no = vpath_idx;
1171 status = vxge_del_mac_addr(vdev, &mac_info);
1172 }
1173 }
1174
1175 /* Enable all multicast */
1176 for (i = 0; i < vdev->no_of_vpath; i++) {
7adf7d1b
JM		 1177 vpath = &vdev->vpaths[i];
1178 vxge_assert(vpath->is_open);
1179
1180 status = vxge_hw_vpath_mcast_enable(vpath->handle);
703da5a1
RV		 1181 if (status != VXGE_HW_OK) {
1182 vxge_debug_init(VXGE_ERR,
1183 "%s:%d Enabling all multicasts failed",
1184 __func__, __LINE__);
1185 }
1186 vdev->all_multi_flg = 1;
1187 }
1188 dev->flags |= IFF_ALLMULTI;
1189 }
1190
1191 vxge_debug_entryexit(VXGE_TRACE,
1192 "%s:%d Exiting...", __func__, __LINE__);
1193}
1194
1195/**
1196 * vxge_set_mac_addr
1197 * @dev: pointer to the device structure
1198 *
1199 * Update entry "0" (default MAC addr)
1200 */
1201static int vxge_set_mac_addr(struct net_device *dev, void *p)
1202{
1203 struct sockaddr *addr = p;
1204 struct vxgedev *vdev;
1205 struct __vxge_hw_device *hldev;
1206 enum vxge_hw_status status = VXGE_HW_OK;
1207 struct macInfo mac_info_new, mac_info_old;
1208 int vpath_idx = 0;
1209
1210 vxge_debug_entryexit(VXGE_TRACE, "%s:%d", __func__, __LINE__);
1211
1212 vdev = (struct vxgedev *)netdev_priv(dev);
1213 hldev = vdev->devh;
1214
1215 if (!is_valid_ether_addr(addr->sa_data))
1216 return -EINVAL;
1217
1218 memset(&mac_info_new, 0, sizeof(struct macInfo));
1219 memset(&mac_info_old, 0, sizeof(struct macInfo));
1220
1221 vxge_debug_entryexit(VXGE_TRACE, "%s:%d Exiting...",
1222 __func__, __LINE__);
1223
1224 /* Get the old address */
1225 memcpy(mac_info_old.macaddr, dev->dev_addr, dev->addr_len);
1226
1227 /* Copy the new address */
1228 memcpy(mac_info_new.macaddr, addr->sa_data, dev->addr_len);
1229
1230 /* First delete the old mac address from all the vpaths
1231 as we can't specify the index while adding new mac address */
1232 for (vpath_idx = 0; vpath_idx < vdev->no_of_vpath; vpath_idx++) {
1233 struct vxge_vpath *vpath = &vdev->vpaths[vpath_idx];
1234 if (!vpath->is_open) {
1235 /* This can happen when this interface is added/removed
1236 to the bonding interface. Delete this station address
1237 from the linked list */
1238 vxge_mac_list_del(vpath, &mac_info_old);
1239
1240 /* Add this new address to the linked list
1241 for later restoring */
1242 vxge_mac_list_add(vpath, &mac_info_new);
1243
1244 continue;
1245 }
1246 /* Delete the station address */
1247 mac_info_old.vpath_no = vpath_idx;
1248 status = vxge_del_mac_addr(vdev, &mac_info_old);
1249 }
1250
1251 if (unlikely(!is_vxge_card_up(vdev))) {
1252 memcpy(dev->dev_addr, addr->sa_data, dev->addr_len);
1253 return VXGE_HW_OK;
1254 }
1255
1256 /* Set this mac address to all the vpaths */
1257 for (vpath_idx = 0; vpath_idx < vdev->no_of_vpath; vpath_idx++) {
1258 mac_info_new.vpath_no = vpath_idx;
1259 mac_info_new.state = VXGE_LL_MAC_ADDR_IN_DA_TABLE;
1260 status = vxge_add_mac_addr(vdev, &mac_info_new);
1261 if (status != VXGE_HW_OK)
1262 return -EINVAL;
1263 }
1264
1265 memcpy(dev->dev_addr, addr->sa_data, dev->addr_len);
1266
1267 return status;
1268}
1269
1270/*
1271 * vxge_vpath_intr_enable
1272 * @vdev: pointer to vdev
1273 * @vp_id: vpath for which to enable the interrupts
1274 *
1275 * Enables the interrupts for the vpath
1276*/
42821a5b 1277static void vxge_vpath_intr_enable(struct vxgedev *vdev, int vp_id)
703da5a1
RV		 1278{
1279 struct vxge_vpath *vpath = &vdev->vpaths[vp_id];
b59c9457
SH		 1280 int msix_id = 0;
1281 int tim_msix_id[4] = {0, 1, 0, 0};
1282 int alarm_msix_id = VXGE_ALARM_MSIX_ID;
703da5a1
RV		 1283
1284 vxge_hw_vpath_intr_enable(vpath->handle);
1285
1286 if (vdev->config.intr_type == INTA)
1287 vxge_hw_vpath_inta_unmask_tx_rx(vpath->handle);
1288 else {
703da5a1
RV		 1289 vxge_hw_vpath_msix_set(vpath->handle, tim_msix_id,
1290 alarm_msix_id);
1291
b59c9457 1292 msix_id = vpath->device_id * VXGE_HW_VPATH_MSIX_ACTIVE;
703da5a1
RV		 1293 vxge_hw_vpath_msix_unmask(vpath->handle, msix_id);
1294 vxge_hw_vpath_msix_unmask(vpath->handle, msix_id + 1);
1295
1296 /* enable the alarm vector */
b59c9457
SH		 1297 msix_id = (vpath->handle->vpath->hldev->first_vp_id *
1298 VXGE_HW_VPATH_MSIX_ACTIVE) + alarm_msix_id;
1299 vxge_hw_vpath_msix_unmask(vpath->handle, msix_id);
703da5a1
RV		 1300 }
1301}
1302
1303/*
1304 * vxge_vpath_intr_disable
1305 * @vdev: pointer to vdev
1306 * @vp_id: vpath for which to disable the interrupts
1307 *
1308 * Disables the interrupts for the vpath
1309*/
42821a5b 1310static void vxge_vpath_intr_disable(struct vxgedev *vdev, int vp_id)
703da5a1
RV		 1311{
1312 struct vxge_vpath *vpath = &vdev->vpaths[vp_id];
4d2a5b40 1313 struct __vxge_hw_device *hldev;
703da5a1
RV		 1314 int msix_id;
1315
4d2a5b40
JM		 1316 hldev = (struct __vxge_hw_device *)pci_get_drvdata(vdev->pdev);
1317
1318 vxge_hw_vpath_wait_receive_idle(hldev, vpath->device_id);
1319
703da5a1
RV		 1320 vxge_hw_vpath_intr_disable(vpath->handle);
1321
1322 if (vdev->config.intr_type == INTA)
1323 vxge_hw_vpath_inta_mask_tx_rx(vpath->handle);
1324 else {
b59c9457 1325 msix_id = vpath->device_id * VXGE_HW_VPATH_MSIX_ACTIVE;
703da5a1
RV		 1326 vxge_hw_vpath_msix_mask(vpath->handle, msix_id);
1327 vxge_hw_vpath_msix_mask(vpath->handle, msix_id + 1);
1328
1329 /* disable the alarm vector */
b59c9457
SH		 1330 msix_id = (vpath->handle->vpath->hldev->first_vp_id *
1331 VXGE_HW_VPATH_MSIX_ACTIVE) + VXGE_ALARM_MSIX_ID;
703da5a1
RV		 1332 vxge_hw_vpath_msix_mask(vpath->handle, msix_id);
1333 }
1334}
1335
1336/*
1337 * vxge_reset_vpath
1338 * @vdev: pointer to vdev
1339 * @vp_id: vpath to reset
1340 *
1341 * Resets the vpath
1342*/
1343static int vxge_reset_vpath(struct vxgedev *vdev, int vp_id)
1344{
1345 enum vxge_hw_status status = VXGE_HW_OK;
7adf7d1b 1346 struct vxge_vpath *vpath = &vdev->vpaths[vp_id];
703da5a1
RV		 1347 int ret = 0;
1348
1349 /* check if device is down already */
1350 if (unlikely(!is_vxge_card_up(vdev)))
1351 return 0;
1352
1353 /* is device reset already scheduled */
1354 if (test_bit(__VXGE_STATE_RESET_CARD, &vdev->state))
1355 return 0;
1356
7adf7d1b
JM		 1357 if (vpath->handle) {
1358 if (vxge_hw_vpath_reset(vpath->handle) == VXGE_HW_OK) {
703da5a1 1359 if (is_vxge_card_up(vdev) &&
7adf7d1b 1360 vxge_hw_vpath_recover_from_reset(vpath->handle)
703da5a1
RV		 1361 != VXGE_HW_OK) {
1362 vxge_debug_init(VXGE_ERR,
1363 "vxge_hw_vpath_recover_from_reset"
1364 "failed for vpath:%d", vp_id);
1365 return status;
1366 }
1367 } else {
1368 vxge_debug_init(VXGE_ERR,
1369 "vxge_hw_vpath_reset failed for"
1370 "vpath:%d", vp_id);
1371 return status;
1372 }
1373 } else
1374 return VXGE_HW_FAIL;
1375
7adf7d1b
JM		 1376 vxge_restore_vpath_mac_addr(vpath);
1377 vxge_restore_vpath_vid_table(vpath);
703da5a1
RV		 1378
1379 /* Enable all broadcast */
7adf7d1b
JM		 1380 vxge_hw_vpath_bcast_enable(vpath->handle);
1381
1382 /* Enable all multicast */
1383 if (vdev->all_multi_flg) {
1384 status = vxge_hw_vpath_mcast_enable(vpath->handle);
1385 if (status != VXGE_HW_OK)
1386 vxge_debug_init(VXGE_ERR,
1387 "%s:%d Enabling multicast failed",
1388 __func__, __LINE__);
1389 }
703da5a1
RV		 1390
1391 /* Enable the interrupts */
1392 vxge_vpath_intr_enable(vdev, vp_id);
1393
1394 smp_wmb();
1395
1396 /* Enable the flow of traffic through the vpath */
7adf7d1b 1397 vxge_hw_vpath_enable(vpath->handle);
703da5a1
RV		 1398
1399 smp_wmb();
7adf7d1b
JM		 1400 vxge_hw_vpath_rx_doorbell_init(vpath->handle);
1401 vpath->ring.last_status = VXGE_HW_OK;
703da5a1
RV		 1402
1403 /* Vpath reset done */
1404 clear_bit(vp_id, &vdev->vp_reset);
1405
1406 /* Start the vpath queue */
98f45da2
JM		 1407 if (netif_tx_queue_stopped(vpath->fifo.txq))
1408 netif_tx_wake_queue(vpath->fifo.txq);
703da5a1
RV		 1409
1410 return ret;
1411}
1412
1413static int do_vxge_reset(struct vxgedev *vdev, int event)
1414{
1415 enum vxge_hw_status status;
1416 int ret = 0, vp_id, i;
1417
1418 vxge_debug_entryexit(VXGE_TRACE, "%s:%d", __func__, __LINE__);
1419
1420 if ((event == VXGE_LL_FULL_RESET) || (event == VXGE_LL_START_RESET)) {
1421 /* check if device is down already */
1422 if (unlikely(!is_vxge_card_up(vdev)))
1423 return 0;
1424
1425 /* is reset already scheduled */
1426 if (test_and_set_bit(__VXGE_STATE_RESET_CARD, &vdev->state))
1427 return 0;
1428 }
1429
1430 if (event == VXGE_LL_FULL_RESET) {
1431 /* wait for all the vpath reset to complete */
1432 for (vp_id = 0; vp_id < vdev->no_of_vpath; vp_id++) {
1433 while (test_bit(vp_id, &vdev->vp_reset))
1434 msleep(50);
1435 }
1436
1437 /* if execution mode is set to debug, don't reset the adapter */
1438 if (unlikely(vdev->exec_mode)) {
1439 vxge_debug_init(VXGE_ERR,
1440 "%s: execution mode is debug, returning..",
1441 vdev->ndev->name);
7adf7d1b
JM		 1442 clear_bit(__VXGE_STATE_CARD_UP, &vdev->state);
1443 netif_tx_stop_all_queues(vdev->ndev);
1444 return 0;
703da5a1
RV		 1445 }
1446 }
1447
1448 if (event == VXGE_LL_FULL_RESET) {
4d2a5b40 1449 vxge_hw_device_wait_receive_idle(vdev->devh);
703da5a1
RV		 1450 vxge_hw_device_intr_disable(vdev->devh);
1451
1452 switch (vdev->cric_err_event) {
1453 case VXGE_HW_EVENT_UNKNOWN:
d03848e0 1454 netif_tx_stop_all_queues(vdev->ndev);
703da5a1
RV		 1455 vxge_debug_init(VXGE_ERR,
1456 "fatal: %s: Disabling device due to"
1457 "unknown error",
1458 vdev->ndev->name);
1459 ret = -EPERM;
1460 goto out;
1461 case VXGE_HW_EVENT_RESET_START:
1462 break;
1463 case VXGE_HW_EVENT_RESET_COMPLETE:
1464 case VXGE_HW_EVENT_LINK_DOWN:
1465 case VXGE_HW_EVENT_LINK_UP:
1466 case VXGE_HW_EVENT_ALARM_CLEARED:
1467 case VXGE_HW_EVENT_ECCERR:
1468 case VXGE_HW_EVENT_MRPCIM_ECCERR:
1469 ret = -EPERM;
1470 goto out;
1471 case VXGE_HW_EVENT_FIFO_ERR:
1472 case VXGE_HW_EVENT_VPATH_ERR:
1473 break;
1474 case VXGE_HW_EVENT_CRITICAL_ERR:
d03848e0 1475 netif_tx_stop_all_queues(vdev->ndev);
703da5a1
RV		 1476 vxge_debug_init(VXGE_ERR,
1477 "fatal: %s: Disabling device due to"
1478 "serious error",
1479 vdev->ndev->name);
1480 /* SOP or device reset required */
1481 /* This event is not currently used */
1482 ret = -EPERM;
1483 goto out;
1484 case VXGE_HW_EVENT_SERR:
d03848e0 1485 netif_tx_stop_all_queues(vdev->ndev);
703da5a1
RV		 1486 vxge_debug_init(VXGE_ERR,
1487 "fatal: %s: Disabling device due to"
1488 "serious error",
1489 vdev->ndev->name);
1490 ret = -EPERM;
1491 goto out;
1492 case VXGE_HW_EVENT_SRPCIM_SERR:
1493 case VXGE_HW_EVENT_MRPCIM_SERR:
1494 ret = -EPERM;
1495 goto out;
1496 case VXGE_HW_EVENT_SLOT_FREEZE:
d03848e0 1497 netif_tx_stop_all_queues(vdev->ndev);
703da5a1
RV		 1498 vxge_debug_init(VXGE_ERR,
1499 "fatal: %s: Disabling device due to"
1500 "slot freeze",
1501 vdev->ndev->name);
1502 ret = -EPERM;
1503 goto out;
1504 default:
1505 break;
1506
1507 }
1508 }
1509
1510 if ((event == VXGE_LL_FULL_RESET) || (event == VXGE_LL_START_RESET))
d03848e0 1511 netif_tx_stop_all_queues(vdev->ndev);
703da5a1
RV		 1512
1513 if (event == VXGE_LL_FULL_RESET) {
1514 status = vxge_reset_all_vpaths(vdev);
1515 if (status != VXGE_HW_OK) {
1516 vxge_debug_init(VXGE_ERR,
1517 "fatal: %s: can not reset vpaths",
1518 vdev->ndev->name);
1519 ret = -EPERM;
1520 goto out;
1521 }
1522 }
1523
1524 if (event == VXGE_LL_COMPL_RESET) {
1525 for (i = 0; i < vdev->no_of_vpath; i++)
1526 if (vdev->vpaths[i].handle) {
1527 if (vxge_hw_vpath_recover_from_reset(
1528 vdev->vpaths[i].handle)
1529 != VXGE_HW_OK) {
1530 vxge_debug_init(VXGE_ERR,
1531 "vxge_hw_vpath_recover_"
1532 "from_reset failed for vpath: "
1533 "%d", i);
1534 ret = -EPERM;
1535 goto out;
1536 }
1537 } else {
1538 vxge_debug_init(VXGE_ERR,
1539 "vxge_hw_vpath_reset failed for "
1540 "vpath:%d", i);
1541 ret = -EPERM;
1542 goto out;
1543 }
1544 }
1545
1546 if ((event == VXGE_LL_FULL_RESET) || (event == VXGE_LL_COMPL_RESET)) {
1547 /* Reprogram the DA table with populated mac addresses */
1548 for (vp_id = 0; vp_id < vdev->no_of_vpath; vp_id++) {
1549 vxge_restore_vpath_mac_addr(&vdev->vpaths[vp_id]);
1550 vxge_restore_vpath_vid_table(&vdev->vpaths[vp_id]);
1551 }
1552
1553 /* enable vpath interrupts */
1554 for (i = 0; i < vdev->no_of_vpath; i++)
1555 vxge_vpath_intr_enable(vdev, i);
1556
1557 vxge_hw_device_intr_enable(vdev->devh);
1558
1559 smp_wmb();
1560
1561 /* Indicate card up */
1562 set_bit(__VXGE_STATE_CARD_UP, &vdev->state);
1563
1564 /* Get the traffic to flow through the vpaths */
1565 for (i = 0; i < vdev->no_of_vpath; i++) {
1566 vxge_hw_vpath_enable(vdev->vpaths[i].handle);
1567 smp_wmb();
1568 vxge_hw_vpath_rx_doorbell_init(vdev->vpaths[i].handle);
1569 }
1570
d03848e0 1571 netif_tx_wake_all_queues(vdev->ndev);
703da5a1
RV		 1572 }
1573
1574out:
1575 vxge_debug_entryexit(VXGE_TRACE,
1576 "%s:%d Exiting...", __func__, __LINE__);
1577
1578 /* Indicate reset done */
1579 if ((event == VXGE_LL_FULL_RESET) || (event == VXGE_LL_COMPL_RESET))
1580 clear_bit(__VXGE_STATE_RESET_CARD, &vdev->state);
1581 return ret;
1582}
1583
1584/*
1585 * vxge_reset
1586 * @vdev: pointer to ll device
1587 *
1588 * driver may reset the chip on events of serr, eccerr, etc
1589 */
42821a5b 1590static int vxge_reset(struct vxgedev *vdev)
703da5a1 1591{
7adf7d1b 1592 return do_vxge_reset(vdev, VXGE_LL_FULL_RESET);
703da5a1
RV		 1593}
1594
1595/**
1596 * vxge_poll - Receive handler when Receive Polling is used.
1597 * @dev: pointer to the device structure.
1598 * @budget: Number of packets budgeted to be processed in this iteration.
1599 *
1600 * This function comes into picture only if Receive side is being handled
1601 * through polling (called NAPI in linux). It mostly does what the normal
1602 * Rx interrupt handler does in terms of descriptor and packet processing
1603 * but not in an interrupt context. Also it will process a specified number
1604 * of packets at most in one iteration. This value is passed down by the
1605 * kernel as the function argument 'budget'.
1606 */
1607static int vxge_poll_msix(struct napi_struct *napi, int budget)
1608{
1609 struct vxge_ring *ring =
1610 container_of(napi, struct vxge_ring, napi);
1611 int budget_org = budget;
1612 ring->budget = budget;
1613
1614 vxge_hw_vpath_poll_rx(ring->handle);
1615
1616 if (ring->pkts_processed < budget_org) {
1617 napi_complete(napi);
1618 /* Re enable the Rx interrupts for the vpath */
1619 vxge_hw_channel_msix_unmask(
1620 (struct __vxge_hw_channel *)ring->handle,
1621 ring->rx_vector_no);
1622 }
1623
1624 return ring->pkts_processed;
1625}
1626
1627static int vxge_poll_inta(struct napi_struct *napi, int budget)
1628{
1629 struct vxgedev *vdev = container_of(napi, struct vxgedev, napi);
1630 int pkts_processed = 0;
1631 int i;
1632 int budget_org = budget;
1633 struct vxge_ring *ring;
1634
1635 struct __vxge_hw_device *hldev = (struct __vxge_hw_device *)
1636 pci_get_drvdata(vdev->pdev);
1637
1638 for (i = 0; i < vdev->no_of_vpath; i++) {
1639 ring = &vdev->vpaths[i].ring;
1640 ring->budget = budget;
1641 vxge_hw_vpath_poll_rx(ring->handle);
1642 pkts_processed += ring->pkts_processed;
1643 budget -= ring->pkts_processed;
1644 if (budget <= 0)
1645 break;
1646 }
1647
1648 VXGE_COMPLETE_ALL_TX(vdev);
1649
1650 if (pkts_processed < budget_org) {
1651 napi_complete(napi);
1652 /* Re enable the Rx interrupts for the ring */
1653 vxge_hw_device_unmask_all(hldev);
1654 vxge_hw_device_flush_io(hldev);
1655 }
1656
1657 return pkts_processed;
1658}
1659
1660#ifdef CONFIG_NET_POLL_CONTROLLER
1661/**
1662 * vxge_netpoll - netpoll event handler entry point
1663 * @dev : pointer to the device structure.
1664 * Description:
1665 * This function will be called by upper layer to check for events on the
1666 * interface in situations where interrupts are disabled. It is used for
1667 * specific in-kernel networking tasks, such as remote consoles and kernel
1668 * debugging over the network (example netdump in RedHat).
1669 */
1670static void vxge_netpoll(struct net_device *dev)
1671{
1672 struct __vxge_hw_device *hldev;
1673 struct vxgedev *vdev;
1674
1675 vdev = (struct vxgedev *)netdev_priv(dev);
1676 hldev = (struct __vxge_hw_device *)pci_get_drvdata(vdev->pdev);
1677
1678 vxge_debug_entryexit(VXGE_TRACE, "%s:%d", __func__, __LINE__);
1679
1680 if (pci_channel_offline(vdev->pdev))
1681 return;
1682
1683 disable_irq(dev->irq);
1684 vxge_hw_device_clear_tx_rx(hldev);
1685
1686 vxge_hw_device_clear_tx_rx(hldev);
1687 VXGE_COMPLETE_ALL_RX(vdev);
1688 VXGE_COMPLETE_ALL_TX(vdev);
1689
1690 enable_irq(dev->irq);
1691
1692 vxge_debug_entryexit(VXGE_TRACE,
1693 "%s:%d Exiting...", __func__, __LINE__);
703da5a1
RV		 1694}
1695#endif
1696
1697/* RTH configuration */
1698static enum vxge_hw_status vxge_rth_configure(struct vxgedev *vdev)
1699{
1700 enum vxge_hw_status status = VXGE_HW_OK;
1701 struct vxge_hw_rth_hash_types hash_types;
1702 u8 itable[256] = {0}; /* indirection table */
1703 u8 mtable[256] = {0}; /* CPU to vpath mapping */
1704 int index;
1705
1706 /*
1707 * Filling
1708 * - itable with bucket numbers
1709 * - mtable with bucket-to-vpath mapping
1710 */
1711 for (index = 0; index < (1 << vdev->config.rth_bkt_sz); index++) {
1712 itable[index] = index;
1713 mtable[index] = index % vdev->no_of_vpath;
1714 }
1715
703da5a1
RV		 1716 /* set indirection table, bucket-to-vpath mapping */
1717 status = vxge_hw_vpath_rts_rth_itable_set(vdev->vp_handles,
1718 vdev->no_of_vpath,
1719 mtable, itable,
1720 vdev->config.rth_bkt_sz);
1721 if (status != VXGE_HW_OK) {
1722 vxge_debug_init(VXGE_ERR,
1723 "RTH indirection table configuration failed "
1724 "for vpath:%d", vdev->vpaths[0].device_id);
1725 return status;
1726 }
1727
47f01db4
JM		 1728 /* Fill RTH hash types */
1729 hash_types.hash_type_tcpipv4_en = vdev->config.rth_hash_type_tcpipv4;
1730 hash_types.hash_type_ipv4_en = vdev->config.rth_hash_type_ipv4;
1731 hash_types.hash_type_tcpipv6_en = vdev->config.rth_hash_type_tcpipv6;
1732 hash_types.hash_type_ipv6_en = vdev->config.rth_hash_type_ipv6;
1733 hash_types.hash_type_tcpipv6ex_en =
1734 vdev->config.rth_hash_type_tcpipv6ex;
1735 hash_types.hash_type_ipv6ex_en = vdev->config.rth_hash_type_ipv6ex;
1736
703da5a1 1737 /*
47f01db4
JM		 1738 * Because the itable_set() method uses the active_table field
1739 * for the target virtual path the RTH config should be updated
1740 * for all VPATHs. The h/w only uses the lowest numbered VPATH
1741 * when steering frames.
1742 */
703da5a1
RV		 1743 for (index = 0; index < vdev->no_of_vpath; index++) {
1744 status = vxge_hw_vpath_rts_rth_set(
1745 vdev->vpaths[index].handle,
1746 vdev->config.rth_algorithm,
1747 &hash_types,
1748 vdev->config.rth_bkt_sz);
1749
1750 if (status != VXGE_HW_OK) {
1751 vxge_debug_init(VXGE_ERR,
1752 "RTH configuration failed for vpath:%d",
1753 vdev->vpaths[index].device_id);
1754 return status;
1755 }
1756 }
1757
1758 return status;
1759}
1760
42821a5b 1761static int vxge_mac_list_add(struct vxge_vpath *vpath, struct macInfo *mac)
703da5a1
RV		 1762{
1763 struct vxge_mac_addrs *new_mac_entry;
1764 u8 *mac_address = NULL;
1765
1766 if (vpath->mac_addr_cnt >= VXGE_MAX_LEARN_MAC_ADDR_CNT)
1767 return TRUE;
1768
1769 new_mac_entry = kzalloc(sizeof(struct vxge_mac_addrs), GFP_ATOMIC);
1770 if (!new_mac_entry) {
1771 vxge_debug_mem(VXGE_ERR,
1772 "%s: memory allocation failed",
1773 VXGE_DRIVER_NAME);
1774 return FALSE;
1775 }
1776
1777 list_add(&new_mac_entry->item, &vpath->mac_addr_list);
1778
1779 /* Copy the new mac address to the list */
1780 mac_address = (u8 *)&new_mac_entry->macaddr;
1781 memcpy(mac_address, mac->macaddr, ETH_ALEN);
1782
1783 new_mac_entry->state = mac->state;
1784 vpath->mac_addr_cnt++;
1785
1786 /* Is this a multicast address */
1787 if (0x01 & mac->macaddr[0])
1788 vpath->mcast_addr_cnt++;
1789
1790 return TRUE;
1791}
1792
1793/* Add a mac address to DA table */
42821a5b 1794static enum vxge_hw_status vxge_add_mac_addr(struct vxgedev *vdev,
1795 struct macInfo *mac)
703da5a1
RV		 1796{
1797 enum vxge_hw_status status = VXGE_HW_OK;
1798 struct vxge_vpath *vpath;
1799 enum vxge_hw_vpath_mac_addr_add_mode duplicate_mode;
1800
1801 if (0x01 & mac->macaddr[0]) /* multicast address */
1802 duplicate_mode = VXGE_HW_VPATH_MAC_ADDR_ADD_DUPLICATE;
1803 else
1804 duplicate_mode = VXGE_HW_VPATH_MAC_ADDR_REPLACE_DUPLICATE;
1805
1806 vpath = &vdev->vpaths[mac->vpath_no];
1807 status = vxge_hw_vpath_mac_addr_add(vpath->handle, mac->macaddr,
1808 mac->macmask, duplicate_mode);
1809 if (status != VXGE_HW_OK) {
1810 vxge_debug_init(VXGE_ERR,
1811 "DA config add entry failed for vpath:%d",
1812 vpath->device_id);
1813 } else
1814 if (FALSE == vxge_mac_list_add(vpath, mac))
1815 status = -EPERM;
1816
1817 return status;
1818}
1819
42821a5b 1820static int vxge_mac_list_del(struct vxge_vpath *vpath, struct macInfo *mac)
703da5a1
RV		 1821{
1822 struct list_head *entry, *next;
1823 u64 del_mac = 0;
1824 u8 *mac_address = (u8 *) (&del_mac);
1825
1826 /* Copy the mac address to delete from the list */
1827 memcpy(mac_address, mac->macaddr, ETH_ALEN);
1828
1829 list_for_each_safe(entry, next, &vpath->mac_addr_list) {
1830 if (((struct vxge_mac_addrs *)entry)->macaddr == del_mac) {
1831 list_del(entry);
1832 kfree((struct vxge_mac_addrs *)entry);
1833 vpath->mac_addr_cnt--;
1834
1835 /* Is this a multicast address */
1836 if (0x01 & mac->macaddr[0])
1837 vpath->mcast_addr_cnt--;
1838 return TRUE;
1839 }
1840 }
1841
1842 return FALSE;
1843}
1844/* delete a mac address from DA table */
42821a5b 1845static enum vxge_hw_status vxge_del_mac_addr(struct vxgedev *vdev,
1846 struct macInfo *mac)
703da5a1
RV		 1847{
1848 enum vxge_hw_status status = VXGE_HW_OK;
1849 struct vxge_vpath *vpath;
1850
1851 vpath = &vdev->vpaths[mac->vpath_no];
1852 status = vxge_hw_vpath_mac_addr_delete(vpath->handle, mac->macaddr,
1853 mac->macmask);
1854 if (status != VXGE_HW_OK) {
1855 vxge_debug_init(VXGE_ERR,
1856 "DA config delete entry failed for vpath:%d",
1857 vpath->device_id);
1858 } else
1859 vxge_mac_list_del(vpath, mac);
1860 return status;
1861}
1862
1863/* list all mac addresses from DA table */
1864enum vxge_hw_status
1865static vxge_search_mac_addr_in_da_table(struct vxge_vpath *vpath,
1866 struct macInfo *mac)
1867{
1868 enum vxge_hw_status status = VXGE_HW_OK;
1869 unsigned char macmask[ETH_ALEN];
1870 unsigned char macaddr[ETH_ALEN];
1871
1872 status = vxge_hw_vpath_mac_addr_get(vpath->handle,
1873 macaddr, macmask);
1874 if (status != VXGE_HW_OK) {
1875 vxge_debug_init(VXGE_ERR,
1876 "DA config list entry failed for vpath:%d",
1877 vpath->device_id);
1878 return status;
1879 }
1880
1881 while (memcmp(mac->macaddr, macaddr, ETH_ALEN)) {
1882
1883 status = vxge_hw_vpath_mac_addr_get_next(vpath->handle,
1884 macaddr, macmask);
1885 if (status != VXGE_HW_OK)
1886 break;
1887 }
1888
1889 return status;
1890}
1891
1892/* Store all vlan ids from the list to the vid table */
42821a5b 1893static enum vxge_hw_status vxge_restore_vpath_vid_table(struct vxge_vpath *vpath)
703da5a1
RV		 1894{
1895 enum vxge_hw_status status = VXGE_HW_OK;
1896 struct vxgedev *vdev = vpath->vdev;
1897 u16 vid;
1898
1899 if (vdev->vlgrp && vpath->is_open) {
1900
b738127d 1901 for (vid = 0; vid < VLAN_N_VID; vid++) {
703da5a1
RV		 1902 if (!vlan_group_get_device(vdev->vlgrp, vid))
1903 continue;
1904 /* Add these vlan to the vid table */
1905 status = vxge_hw_vpath_vid_add(vpath->handle, vid);
1906 }
1907 }
1908
1909 return status;
1910}
1911
1912/* Store all mac addresses from the list to the DA table */
42821a5b 1913static enum vxge_hw_status vxge_restore_vpath_mac_addr(struct vxge_vpath *vpath)
703da5a1
RV		 1914{
1915 enum vxge_hw_status status = VXGE_HW_OK;
1916 struct macInfo mac_info;
1917 u8 *mac_address = NULL;
1918 struct list_head *entry, *next;
1919
1920 memset(&mac_info, 0, sizeof(struct macInfo));
1921
1922 if (vpath->is_open) {
1923
1924 list_for_each_safe(entry, next, &vpath->mac_addr_list) {
1925 mac_address =
1926 (u8 *)&
1927 ((struct vxge_mac_addrs *)entry)->macaddr;
1928 memcpy(mac_info.macaddr, mac_address, ETH_ALEN);
1929 ((struct vxge_mac_addrs *)entry)->state =
1930 VXGE_LL_MAC_ADDR_IN_DA_TABLE;
1931 /* does this mac address already exist in da table? */
1932 status = vxge_search_mac_addr_in_da_table(vpath,
1933 &mac_info);
1934 if (status != VXGE_HW_OK) {
1935 /* Add this mac address to the DA table */
1936 status = vxge_hw_vpath_mac_addr_add(
1937 vpath->handle, mac_info.macaddr,
1938 mac_info.macmask,
1939 VXGE_HW_VPATH_MAC_ADDR_ADD_DUPLICATE);
1940 if (status != VXGE_HW_OK) {
1941 vxge_debug_init(VXGE_ERR,
1942 "DA add entry failed for vpath:%d",
1943 vpath->device_id);
1944 ((struct vxge_mac_addrs *)entry)->state
1945 = VXGE_LL_MAC_ADDR_IN_LIST;
1946 }
1947 }
1948 }
1949 }
1950
1951 return status;
1952}
1953
1954/* reset vpaths */
4d2a5b40 1955enum vxge_hw_status vxge_reset_all_vpaths(struct vxgedev *vdev)
703da5a1 1956{
703da5a1 1957 enum vxge_hw_status status = VXGE_HW_OK;
7adf7d1b
JM		 1958 struct vxge_vpath *vpath;
1959 int i;
703da5a1 1960
7adf7d1b
JM		 1961 for (i = 0; i < vdev->no_of_vpath; i++) {
1962 vpath = &vdev->vpaths[i];
1963 if (vpath->handle) {
1964 if (vxge_hw_vpath_reset(vpath->handle) == VXGE_HW_OK) {
703da5a1
RV		 1965 if (is_vxge_card_up(vdev) &&
1966 vxge_hw_vpath_recover_from_reset(
7adf7d1b 1967 vpath->handle) != VXGE_HW_OK) {
703da5a1
RV		 1968 vxge_debug_init(VXGE_ERR,
1969 "vxge_hw_vpath_recover_"
1970 "from_reset failed for vpath: "
1971 "%d", i);
1972 return status;
1973 }
1974 } else {
1975 vxge_debug_init(VXGE_ERR,
1976 "vxge_hw_vpath_reset failed for "
1977 "vpath:%d", i);
1978 return status;
1979 }
1980 }
7adf7d1b
JM		 1981 }
1982
703da5a1
RV		 1983 return status;
1984}
1985
1986/* close vpaths */
42821a5b 1987static void vxge_close_vpaths(struct vxgedev *vdev, int index)
703da5a1 1988{
7adf7d1b 1989 struct vxge_vpath *vpath;
703da5a1 1990 int i;
7adf7d1b 1991
703da5a1 1992 for (i = index; i < vdev->no_of_vpath; i++) {
7adf7d1b
JM		 1993 vpath = &vdev->vpaths[i];
1994
1995 if (vpath->handle && vpath->is_open) {
1996 vxge_hw_vpath_close(vpath->handle);
703da5a1
RV		 1997 vdev->stats.vpaths_open--;
1998 }
7adf7d1b
JM		 1999 vpath->is_open = 0;
2000 vpath->handle = NULL;
703da5a1
RV		 2001 }
2002}
2003
2004/* open vpaths */
42821a5b 2005static int vxge_open_vpaths(struct vxgedev *vdev)
703da5a1 2006{
7adf7d1b 2007 struct vxge_hw_vpath_attr attr;
703da5a1 2008 enum vxge_hw_status status;
7adf7d1b 2009 struct vxge_vpath *vpath;
703da5a1 2010 u32 vp_id = 0;
7adf7d1b 2011 int i;
703da5a1
RV		 2012
2013 for (i = 0; i < vdev->no_of_vpath; i++) {
7adf7d1b
JM		 2014 vpath = &vdev->vpaths[i];
2015
2016 vxge_assert(vpath->is_configured);
2017 attr.vp_id = vpath->device_id;
703da5a1
RV		 2018 attr.fifo_attr.callback = vxge_xmit_compl;
2019 attr.fifo_attr.txdl_term = vxge_tx_term;
2020 attr.fifo_attr.per_txdl_space = sizeof(struct vxge_tx_priv);
7adf7d1b 2021 attr.fifo_attr.userdata = &vpath->fifo;
703da5a1
RV		 2022
2023 attr.ring_attr.callback = vxge_rx_1b_compl;
2024 attr.ring_attr.rxd_init = vxge_rx_initial_replenish;
2025 attr.ring_attr.rxd_term = vxge_rx_term;
2026 attr.ring_attr.per_rxd_space = sizeof(struct vxge_rx_priv);
7adf7d1b 2027 attr.ring_attr.userdata = &vpath->ring;
703da5a1 2028
7adf7d1b
JM		 2029 vpath->ring.ndev = vdev->ndev;
2030 vpath->ring.pdev = vdev->pdev;
2031 status = vxge_hw_vpath_open(vdev->devh, &attr, &vpath->handle);
703da5a1 2032 if (status == VXGE_HW_OK) {
7adf7d1b 2033 vpath->fifo.handle =
703da5a1 2034 (struct __vxge_hw_fifo *)attr.fifo_attr.userdata;
7adf7d1b 2035 vpath->ring.handle =
703da5a1 2036 (struct __vxge_hw_ring *)attr.ring_attr.userdata;
7adf7d1b 2037 vpath->fifo.tx_steering_type =
703da5a1 2038 vdev->config.tx_steering_type;
7adf7d1b
JM		 2039 vpath->fifo.ndev = vdev->ndev;
2040 vpath->fifo.pdev = vdev->pdev;
98f45da2
JM		 2041 if (vdev->config.tx_steering_type)
2042 vpath->fifo.txq =
2043 netdev_get_tx_queue(vdev->ndev, i);
2044 else
2045 vpath->fifo.txq =
2046 netdev_get_tx_queue(vdev->ndev, 0);
7adf7d1b 2047 vpath->fifo.indicate_max_pkts =
703da5a1 2048 vdev->config.fifo_indicate_max_pkts;
7adf7d1b
JM		 2049 vpath->ring.rx_vector_no = 0;
2050 vpath->ring.rx_csum = vdev->rx_csum;
b81b3733 2051 vpath->ring.rx_hwts = vdev->rx_hwts;
7adf7d1b
JM		 2052 vpath->is_open = 1;
2053 vdev->vp_handles[i] = vpath->handle;
2054 vpath->ring.gro_enable = vdev->config.gro_enable;
2055 vpath->ring.vlan_tag_strip = vdev->vlan_tag_strip;
703da5a1
RV		 2056 vdev->stats.vpaths_open++;
2057 } else {
2058 vdev->stats.vpath_open_fail++;
2059 vxge_debug_init(VXGE_ERR,
2060 "%s: vpath: %d failed to open "
2061 "with status: %d",
7adf7d1b 2062 vdev->ndev->name, vpath->device_id,
703da5a1
RV		 2063 status);
2064 vxge_close_vpaths(vdev, 0);
2065 return -EPERM;
2066 }
2067
7adf7d1b 2068 vp_id = vpath->handle->vpath->vp_id;
703da5a1
RV		 2069 vdev->vpaths_deployed |= vxge_mBIT(vp_id);
2070 }
2071 return VXGE_HW_OK;
2072}
2073
2074/*
2075 * vxge_isr_napi
2076 * @irq: the irq of the device.
2077 * @dev_id: a void pointer to the hldev structure of the Titan device
2078 * @ptregs: pointer to the registers pushed on the stack.
2079 *
2080 * This function is the ISR handler of the device when napi is enabled. It
2081 * identifies the reason for the interrupt and calls the relevant service
2082 * routines.
2083 */
2084static irqreturn_t vxge_isr_napi(int irq, void *dev_id)
2085{
703da5a1 2086 struct net_device *dev;
a5d165b5 2087 struct __vxge_hw_device *hldev;
703da5a1
RV		 2088 u64 reason;
2089 enum vxge_hw_status status;
a5d165b5 2090 struct vxgedev *vdev = (struct vxgedev *) dev_id;;
703da5a1
RV		 2091
2092 vxge_debug_intr(VXGE_TRACE, "%s:%d", __func__, __LINE__);
2093
a5d165b5
SH		 2094 dev = vdev->ndev;
2095 hldev = (struct __vxge_hw_device *)pci_get_drvdata(vdev->pdev);
703da5a1
RV		 2096
2097 if (pci_channel_offline(vdev->pdev))
2098 return IRQ_NONE;
2099
2100 if (unlikely(!is_vxge_card_up(vdev)))
4d2a5b40 2101 return IRQ_HANDLED;
703da5a1
RV		 2102
2103 status = vxge_hw_device_begin_irq(hldev, vdev->exec_mode,
2104 &reason);
2105 if (status == VXGE_HW_OK) {
2106 vxge_hw_device_mask_all(hldev);
2107
2108 if (reason &
2109 VXGE_HW_TITAN_GENERAL_INT_STATUS_VPATH_TRAFFIC_INT(
2110 vdev->vpaths_deployed >>
2111 (64 - VXGE_HW_MAX_VIRTUAL_PATHS))) {
2112
2113 vxge_hw_device_clear_tx_rx(hldev);
2114 napi_schedule(&vdev->napi);
2115 vxge_debug_intr(VXGE_TRACE,
2116 "%s:%d Exiting...", __func__, __LINE__);
2117 return IRQ_HANDLED;
2118 } else
2119 vxge_hw_device_unmask_all(hldev);
2120 } else if (unlikely((status == VXGE_HW_ERR_VPATH) ||
2121 (status == VXGE_HW_ERR_CRITICAL) ||
2122 (status == VXGE_HW_ERR_FIFO))) {
2123 vxge_hw_device_mask_all(hldev);
2124 vxge_hw_device_flush_io(hldev);
2125 return IRQ_HANDLED;
2126 } else if (unlikely(status == VXGE_HW_ERR_SLOT_FREEZE))
2127 return IRQ_HANDLED;
2128
2129 vxge_debug_intr(VXGE_TRACE, "%s:%d Exiting...", __func__, __LINE__);
2130 return IRQ_NONE;
2131}
2132
2133#ifdef CONFIG_PCI_MSI
2134
2135static irqreturn_t
2136vxge_tx_msix_handle(int irq, void *dev_id)
2137{
2138 struct vxge_fifo *fifo = (struct vxge_fifo *)dev_id;
2139
2140 VXGE_COMPLETE_VPATH_TX(fifo);
2141
2142 return IRQ_HANDLED;
2143}
2144
2145static irqreturn_t
2146vxge_rx_msix_napi_handle(int irq, void *dev_id)
2147{
2148 struct vxge_ring *ring = (struct vxge_ring *)dev_id;
2149
2150 /* MSIX_IDX for Rx is 1 */
2151 vxge_hw_channel_msix_mask((struct __vxge_hw_channel *)ring->handle,
2152 ring->rx_vector_no);
2153
2154 napi_schedule(&ring->napi);
2155 return IRQ_HANDLED;
2156}
2157
2158static irqreturn_t
2159vxge_alarm_msix_handle(int irq, void *dev_id)
2160{
2161 int i;
2162 enum vxge_hw_status status;
2163 struct vxge_vpath *vpath = (struct vxge_vpath *)dev_id;
2164 struct vxgedev *vdev = vpath->vdev;
b59c9457
SH		 2165 int msix_id = (vpath->handle->vpath->vp_id *
2166 VXGE_HW_VPATH_MSIX_ACTIVE) + VXGE_ALARM_MSIX_ID;
703da5a1
RV		 2167
2168 for (i = 0; i < vdev->no_of_vpath; i++) {
b59c9457 2169 vxge_hw_vpath_msix_mask(vdev->vpaths[i].handle, msix_id);
703da5a1
RV		 2170
2171 status = vxge_hw_vpath_alarm_process(vdev->vpaths[i].handle,
2172 vdev->exec_mode);
2173 if (status == VXGE_HW_OK) {
2174
2175 vxge_hw_vpath_msix_unmask(vdev->vpaths[i].handle,
b59c9457 2176 msix_id);
703da5a1
RV		 2177 continue;
2178 }
2179 vxge_debug_intr(VXGE_ERR,
2180 "%s: vxge_hw_vpath_alarm_process failed %x ",
2181 VXGE_DRIVER_NAME, status);
2182 }
2183 return IRQ_HANDLED;
2184}
2185
2186static int vxge_alloc_msix(struct vxgedev *vdev)
2187{
2188 int j, i, ret = 0;
b59c9457 2189 int msix_intr_vect = 0, temp;
703da5a1
RV		 2190 vdev->intr_cnt = 0;
2191
b59c9457 2192start:
703da5a1
RV		 2193 /* Tx/Rx MSIX Vectors count */
2194 vdev->intr_cnt = vdev->no_of_vpath * 2;
2195
2196 /* Alarm MSIX Vectors count */
2197 vdev->intr_cnt++;
2198
baeb2ffa
JP		 2199 vdev->entries = kcalloc(vdev->intr_cnt, sizeof(struct msix_entry),
2200 GFP_KERNEL);
703da5a1
RV		 2201 if (!vdev->entries) {
2202 vxge_debug_init(VXGE_ERR,
2203 "%s: memory allocation failed",
2204 VXGE_DRIVER_NAME);
cc413d90
MS		 2205 ret = -ENOMEM;
2206 goto alloc_entries_failed;
703da5a1
RV		 2207 }
2208
baeb2ffa
JP		 2209 vdev->vxge_entries = kcalloc(vdev->intr_cnt,
2210 sizeof(struct vxge_msix_entry),
2211 GFP_KERNEL);
703da5a1
RV		 2212 if (!vdev->vxge_entries) {
2213 vxge_debug_init(VXGE_ERR, "%s: memory allocation failed",
2214 VXGE_DRIVER_NAME);
cc413d90
MS		 2215 ret = -ENOMEM;
2216 goto alloc_vxge_entries_failed;
703da5a1
RV		 2217 }
2218
b59c9457 2219 for (i = 0, j = 0; i < vdev->no_of_vpath; i++) {
703da5a1
RV		 2220
2221 msix_intr_vect = i * VXGE_HW_VPATH_MSIX_ACTIVE;
2222
2223 /* Initialize the fifo vector */
2224 vdev->entries[j].entry = msix_intr_vect;
2225 vdev->vxge_entries[j].entry = msix_intr_vect;
2226 vdev->vxge_entries[j].in_use = 0;
2227 j++;
2228
2229 /* Initialize the ring vector */
2230 vdev->entries[j].entry = msix_intr_vect + 1;
2231 vdev->vxge_entries[j].entry = msix_intr_vect + 1;
2232 vdev->vxge_entries[j].in_use = 0;
2233 j++;
2234 }
2235
2236 /* Initialize the alarm vector */
b59c9457
SH		 2237 vdev->entries[j].entry = VXGE_ALARM_MSIX_ID;
2238 vdev->vxge_entries[j].entry = VXGE_ALARM_MSIX_ID;
703da5a1
RV		 2239 vdev->vxge_entries[j].in_use = 0;
2240
b59c9457 2241 ret = pci_enable_msix(vdev->pdev, vdev->entries, vdev->intr_cnt);
b59c9457 2242 if (ret > 0) {
703da5a1
RV		 2243 vxge_debug_init(VXGE_ERR,
2244 "%s: MSI-X enable failed for %d vectors, ret: %d",
b59c9457 2245 VXGE_DRIVER_NAME, vdev->intr_cnt, ret);
cc413d90
MS		 2246 if ((max_config_vpath != VXGE_USE_DEFAULT) || (ret < 3)) {
2247 ret = -ENODEV;
2248 goto enable_msix_failed;
2249 }
2250
703da5a1
RV		 2251 kfree(vdev->entries);
2252 kfree(vdev->vxge_entries);
2253 vdev->entries = NULL;
2254 vdev->vxge_entries = NULL;
b59c9457
SH		 2255 /* Try with less no of vector by reducing no of vpaths count */
2256 temp = (ret - 1)/2;
2257 vxge_close_vpaths(vdev, temp);
2258 vdev->no_of_vpath = temp;
2259 goto start;
cc413d90
MS		 2260 } else if (ret < 0) {
2261 ret = -ENODEV;
2262 goto enable_msix_failed;
2263 }
703da5a1 2264 return 0;
cc413d90
MS		 2265
2266enable_msix_failed:
2267 kfree(vdev->vxge_entries);
2268alloc_vxge_entries_failed:
2269 kfree(vdev->entries);
2270alloc_entries_failed:
2271 return ret;
703da5a1
RV		 2272}
2273
2274static int vxge_enable_msix(struct vxgedev *vdev)
2275{
2276
2277 int i, ret = 0;
703da5a1 2278 /* 0 - Tx, 1 - Rx */
b59c9457
SH		 2279 int tim_msix_id[4] = {0, 1, 0, 0};
2280
703da5a1
RV		 2281 vdev->intr_cnt = 0;
2282
2283 /* allocate msix vectors */
2284 ret = vxge_alloc_msix(vdev);
2285 if (!ret) {
703da5a1 2286 for (i = 0; i < vdev->no_of_vpath; i++) {
7adf7d1b 2287 struct vxge_vpath *vpath = &vdev->vpaths[i];
703da5a1 2288
7adf7d1b
JM		 2289 /* If fifo or ring are not enabled, the MSIX vector for
2290 * it should be set to 0.
2291 */
2292 vpath->ring.rx_vector_no = (vpath->device_id *
2293 VXGE_HW_VPATH_MSIX_ACTIVE) + 1;
703da5a1 2294
7adf7d1b
JM		 2295 vxge_hw_vpath_msix_set(vpath->handle, tim_msix_id,
2296 VXGE_ALARM_MSIX_ID);
703da5a1
RV		 2297 }
2298 }
2299
2300 return ret;
2301}
2302
2303static void vxge_rem_msix_isr(struct vxgedev *vdev)
2304{
2305 int intr_cnt;
2306
b59c9457 2307 for (intr_cnt = 0; intr_cnt < (vdev->no_of_vpath * 2 + 1);
703da5a1
RV		 2308 intr_cnt++) {
2309 if (vdev->vxge_entries[intr_cnt].in_use) {
2310 synchronize_irq(vdev->entries[intr_cnt].vector);
2311 free_irq(vdev->entries[intr_cnt].vector,
2312 vdev->vxge_entries[intr_cnt].arg);
2313 vdev->vxge_entries[intr_cnt].in_use = 0;
2314 }
2315 }
2316
2317 kfree(vdev->entries);
2318 kfree(vdev->vxge_entries);
2319 vdev->entries = NULL;
2320 vdev->vxge_entries = NULL;
2321
2322 if (vdev->config.intr_type == MSI_X)
2323 pci_disable_msix(vdev->pdev);
2324}
2325#endif
2326
2327static void vxge_rem_isr(struct vxgedev *vdev)
2328{
2329 struct __vxge_hw_device *hldev;
2330 hldev = (struct __vxge_hw_device *) pci_get_drvdata(vdev->pdev);
2331
2332#ifdef CONFIG_PCI_MSI
2333 if (vdev->config.intr_type == MSI_X) {
2334 vxge_rem_msix_isr(vdev);
2335 } else
2336#endif
2337 if (vdev->config.intr_type == INTA) {
2338 synchronize_irq(vdev->pdev->irq);
a5d165b5 2339 free_irq(vdev->pdev->irq, vdev);
703da5a1
RV		 2340 }
2341}
2342
2343static int vxge_add_isr(struct vxgedev *vdev)
2344{
2345 int ret = 0;
703da5a1
RV		 2346#ifdef CONFIG_PCI_MSI
2347 int vp_idx = 0, intr_idx = 0, intr_cnt = 0, msix_idx = 0, irq_req = 0;
703da5a1
RV		 2348 int pci_fun = PCI_FUNC(vdev->pdev->devfn);
2349
2350 if (vdev->config.intr_type == MSI_X)
2351 ret = vxge_enable_msix(vdev);
2352
2353 if (ret) {
2354 vxge_debug_init(VXGE_ERR,
2355 "%s: Enabling MSI-X Failed", VXGE_DRIVER_NAME);
eb5f10c2
SH		 2356 vxge_debug_init(VXGE_ERR,
2357 "%s: Defaulting to INTA", VXGE_DRIVER_NAME);
2358 vdev->config.intr_type = INTA;
703da5a1
RV		 2359 }
2360
2361 if (vdev->config.intr_type == MSI_X) {
2362 for (intr_idx = 0;
2363 intr_idx < (vdev->no_of_vpath *
2364 VXGE_HW_VPATH_MSIX_ACTIVE); intr_idx++) {
2365
2366 msix_idx = intr_idx % VXGE_HW_VPATH_MSIX_ACTIVE;
2367 irq_req = 0;
2368
2369 switch (msix_idx) {
2370 case 0:
2371 snprintf(vdev->desc[intr_cnt], VXGE_INTR_STRLEN,
b59c9457
SH		 2372 "%s:vxge:MSI-X %d - Tx - fn:%d vpath:%d",
2373 vdev->ndev->name,
2374 vdev->entries[intr_cnt].entry,
2375 pci_fun, vp_idx);
703da5a1
RV		 2376 ret = request_irq(
2377 vdev->entries[intr_cnt].vector,
2378 vxge_tx_msix_handle, 0,
2379 vdev->desc[intr_cnt],
2380 &vdev->vpaths[vp_idx].fifo);
2381 vdev->vxge_entries[intr_cnt].arg =
2382 &vdev->vpaths[vp_idx].fifo;
2383 irq_req = 1;
2384 break;
2385 case 1:
2386 snprintf(vdev->desc[intr_cnt], VXGE_INTR_STRLEN,
b59c9457
SH		 2387 "%s:vxge:MSI-X %d - Rx - fn:%d vpath:%d",
2388 vdev->ndev->name,
2389 vdev->entries[intr_cnt].entry,
2390 pci_fun, vp_idx);
703da5a1
RV		 2391 ret = request_irq(
2392 vdev->entries[intr_cnt].vector,
2393 vxge_rx_msix_napi_handle,
2394 0,
2395 vdev->desc[intr_cnt],
2396 &vdev->vpaths[vp_idx].ring);
2397 vdev->vxge_entries[intr_cnt].arg =
2398 &vdev->vpaths[vp_idx].ring;
2399 irq_req = 1;
2400 break;
2401 }
2402
2403 if (ret) {
2404 vxge_debug_init(VXGE_ERR,
2405 "%s: MSIX - %d Registration failed",
2406 vdev->ndev->name, intr_cnt);
2407 vxge_rem_msix_isr(vdev);
eb5f10c2
SH		 2408 vdev->config.intr_type = INTA;
2409 vxge_debug_init(VXGE_ERR,
2410 "%s: Defaulting to INTA"
2411 , vdev->ndev->name);
703da5a1 2412 goto INTA_MODE;
703da5a1
RV		 2413 }
2414
2415 if (irq_req) {
2416 /* We requested for this msix interrupt */
2417 vdev->vxge_entries[intr_cnt].in_use = 1;
b59c9457
SH		 2418 msix_idx += vdev->vpaths[vp_idx].device_id *
2419 VXGE_HW_VPATH_MSIX_ACTIVE;
703da5a1
RV		 2420 vxge_hw_vpath_msix_unmask(
2421 vdev->vpaths[vp_idx].handle,
b59c9457 2422 msix_idx);
703da5a1
RV		 2423 intr_cnt++;
2424 }
2425
2426 /* Point to next vpath handler */
8e95a202
JP		 2427 if (((intr_idx + 1) % VXGE_HW_VPATH_MSIX_ACTIVE == 0) &&
2428 (vp_idx < (vdev->no_of_vpath - 1)))
2429 vp_idx++;
703da5a1
RV		 2430 }
2431
b59c9457 2432 intr_cnt = vdev->no_of_vpath * 2;
703da5a1 2433 snprintf(vdev->desc[intr_cnt], VXGE_INTR_STRLEN,
b59c9457
SH		 2434 "%s:vxge:MSI-X %d - Alarm - fn:%d",
2435 vdev->ndev->name,
2436 vdev->entries[intr_cnt].entry,
2437 pci_fun);
703da5a1
RV		 2438 /* For Alarm interrupts */
2439 ret = request_irq(vdev->entries[intr_cnt].vector,
2440 vxge_alarm_msix_handle, 0,
2441 vdev->desc[intr_cnt],
b59c9457 2442 &vdev->vpaths[0]);
703da5a1
RV		 2443 if (ret) {
2444 vxge_debug_init(VXGE_ERR,
2445 "%s: MSIX - %d Registration failed",
2446 vdev->ndev->name, intr_cnt);
2447 vxge_rem_msix_isr(vdev);
eb5f10c2
SH		 2448 vdev->config.intr_type = INTA;
2449 vxge_debug_init(VXGE_ERR,
2450 "%s: Defaulting to INTA",
2451 vdev->ndev->name);
703da5a1 2452 goto INTA_MODE;
703da5a1
RV		 2453 }
2454
b59c9457
SH		 2455 msix_idx = (vdev->vpaths[0].handle->vpath->vp_id *
2456 VXGE_HW_VPATH_MSIX_ACTIVE) + VXGE_ALARM_MSIX_ID;
703da5a1 2457 vxge_hw_vpath_msix_unmask(vdev->vpaths[vp_idx].handle,
b59c9457 2458 msix_idx);
703da5a1 2459 vdev->vxge_entries[intr_cnt].in_use = 1;
b59c9457 2460 vdev->vxge_entries[intr_cnt].arg = &vdev->vpaths[0];
703da5a1
RV		 2461 }
2462INTA_MODE:
2463#endif
703da5a1
RV		 2464
2465 if (vdev->config.intr_type == INTA) {
b59c9457
SH		 2466 snprintf(vdev->desc[0], VXGE_INTR_STRLEN,
2467 "%s:vxge:INTA", vdev->ndev->name);
eb5f10c2
SH		 2468 vxge_hw_device_set_intr_type(vdev->devh,
2469 VXGE_HW_INTR_MODE_IRQLINE);
2470 vxge_hw_vpath_tti_ci_set(vdev->devh,
2471 vdev->vpaths[0].device_id);
703da5a1
RV		 2472 ret = request_irq((int) vdev->pdev->irq,
2473 vxge_isr_napi,
a5d165b5 2474 IRQF_SHARED, vdev->desc[0], vdev);
703da5a1
RV		 2475 if (ret) {
2476 vxge_debug_init(VXGE_ERR,
2477 "%s %s-%d: ISR registration failed",
2478 VXGE_DRIVER_NAME, "IRQ", vdev->pdev->irq);
2479 return -ENODEV;
2480 }
2481 vxge_debug_init(VXGE_TRACE,
2482 "new %s-%d line allocated",
2483 "IRQ", vdev->pdev->irq);
2484 }
2485
2486 return VXGE_HW_OK;
2487}
2488
2489static void vxge_poll_vp_reset(unsigned long data)
2490{
2491 struct vxgedev *vdev = (struct vxgedev *)data;
2492 int i, j = 0;
2493
2494 for (i = 0; i < vdev->no_of_vpath; i++) {
2495 if (test_bit(i, &vdev->vp_reset)) {
2496 vxge_reset_vpath(vdev, i);
2497 j++;
2498 }
2499 }
2500 if (j && (vdev->config.intr_type != MSI_X)) {
2501 vxge_hw_device_unmask_all(vdev->devh);
2502 vxge_hw_device_flush_io(vdev->devh);
2503 }
2504
2505 mod_timer(&vdev->vp_reset_timer, jiffies + HZ / 2);
2506}
2507
2508static void vxge_poll_vp_lockup(unsigned long data)
2509{
2510 struct vxgedev *vdev = (struct vxgedev *)data;
703da5a1 2511 enum vxge_hw_status status = VXGE_HW_OK;
7adf7d1b
JM		 2512 struct vxge_vpath *vpath;
2513 struct vxge_ring *ring;
2514 int i;
703da5a1
RV		 2515
2516 for (i = 0; i < vdev->no_of_vpath; i++) {
2517 ring = &vdev->vpaths[i].ring;
2518 /* Did this vpath received any packets */
2519 if (ring->stats.prev_rx_frms == ring->stats.rx_frms) {
2520 status = vxge_hw_vpath_check_leak(ring->handle);
2521
2522 /* Did it received any packets last time */
2523 if ((VXGE_HW_FAIL == status) &&
2524 (VXGE_HW_FAIL == ring->last_status)) {
2525
2526 /* schedule vpath reset */
2527 if (!test_and_set_bit(i, &vdev->vp_reset)) {
7adf7d1b 2528 vpath = &vdev->vpaths[i];
703da5a1
RV		 2529
2530 /* disable interrupts for this vpath */
2531 vxge_vpath_intr_disable(vdev, i);
2532
2533 /* stop the queue for this vpath */
98f45da2 2534 netif_tx_stop_queue(vpath->fifo.txq);
703da5a1
RV		 2535 continue;
2536 }
2537 }
2538 }
2539 ring->stats.prev_rx_frms = ring->stats.rx_frms;
2540 ring->last_status = status;
2541 }
2542
2543 /* Check every 1 milli second */
2544 mod_timer(&vdev->vp_lockup_timer, jiffies + HZ / 1000);
2545}
2546
2547/**
2548 * vxge_open
2549 * @dev: pointer to the device structure.
2550 *
2551 * This function is the open entry point of the driver. It mainly calls a
2552 * function to allocate Rx buffers and inserts them into the buffer
2553 * descriptors and then enables the Rx part of the NIC.
2554 * Return value: '0' on success and an appropriate (-)ve integer as
2555 * defined in errno.h file on failure.
2556 */
42821a5b 2557static int
703da5a1
RV		 2558vxge_open(struct net_device *dev)
2559{
2560 enum vxge_hw_status status;
2561 struct vxgedev *vdev;
2562 struct __vxge_hw_device *hldev;
7adf7d1b 2563 struct vxge_vpath *vpath;
703da5a1
RV		 2564 int ret = 0;
2565 int i;
2566 u64 val64, function_mode;
2567 vxge_debug_entryexit(VXGE_TRACE,
2568 "%s: %s:%d", dev->name, __func__, __LINE__);
2569
2570 vdev = (struct vxgedev *)netdev_priv(dev);
2571 hldev = (struct __vxge_hw_device *) pci_get_drvdata(vdev->pdev);
2572 function_mode = vdev->config.device_hw_info.function_mode;
2573
2574 /* make sure you have link off by default every time Nic is
2575 * initialized */
2576 netif_carrier_off(dev);
2577
703da5a1
RV		 2578 /* Open VPATHs */
2579 status = vxge_open_vpaths(vdev);
2580 if (status != VXGE_HW_OK) {
2581 vxge_debug_init(VXGE_ERR,
2582 "%s: fatal: Vpath open failed", vdev->ndev->name);
2583 ret = -EPERM;
2584 goto out0;
2585 }
2586
2587 vdev->mtu = dev->mtu;
2588
2589 status = vxge_add_isr(vdev);
2590 if (status != VXGE_HW_OK) {
2591 vxge_debug_init(VXGE_ERR,
2592 "%s: fatal: ISR add failed", dev->name);
2593 ret = -EPERM;
2594 goto out1;
2595 }
2596
703da5a1
RV		 2597 if (vdev->config.intr_type != MSI_X) {
2598 netif_napi_add(dev, &vdev->napi, vxge_poll_inta,
2599 vdev->config.napi_weight);
2600 napi_enable(&vdev->napi);
7adf7d1b
JM		 2601 for (i = 0; i < vdev->no_of_vpath; i++) {
2602 vpath = &vdev->vpaths[i];
2603 vpath->ring.napi_p = &vdev->napi;
2604 }
703da5a1
RV		 2605 } else {
2606 for (i = 0; i < vdev->no_of_vpath; i++) {
7adf7d1b
JM		 2607 vpath = &vdev->vpaths[i];
2608 netif_napi_add(dev, &vpath->ring.napi,
703da5a1 2609 vxge_poll_msix, vdev->config.napi_weight);
7adf7d1b
JM		 2610 napi_enable(&vpath->ring.napi);
2611 vpath->ring.napi_p = &vpath->ring.napi;
703da5a1
RV		 2612 }
2613 }
2614
2615 /* configure RTH */
2616 if (vdev->config.rth_steering) {
2617 status = vxge_rth_configure(vdev);
2618 if (status != VXGE_HW_OK) {
2619 vxge_debug_init(VXGE_ERR,
2620 "%s: fatal: RTH configuration failed",
2621 dev->name);
2622 ret = -EPERM;
2623 goto out2;
2624 }
2625 }
47f01db4
JM		 2626 printk(KERN_INFO "%s: Receive Hashing Offload %s\n", dev->name,
2627 hldev->config.rth_en ? "enabled" : "disabled");
703da5a1
RV		 2628
2629 for (i = 0; i < vdev->no_of_vpath; i++) {
7adf7d1b
JM		 2630 vpath = &vdev->vpaths[i];
2631
703da5a1 2632 /* set initial mtu before enabling the device */
7adf7d1b 2633 status = vxge_hw_vpath_mtu_set(vpath->handle, vdev->mtu);
703da5a1
RV		 2634 if (status != VXGE_HW_OK) {
2635 vxge_debug_init(VXGE_ERR,
2636 "%s: fatal: can not set new MTU", dev->name);
2637 ret = -EPERM;
2638 goto out2;
2639 }
2640 }
2641
2642 VXGE_DEVICE_DEBUG_LEVEL_SET(VXGE_TRACE, VXGE_COMPONENT_LL, vdev);
2643 vxge_debug_init(vdev->level_trace,
2644 "%s: MTU is %d", vdev->ndev->name, vdev->mtu);
2645 VXGE_DEVICE_DEBUG_LEVEL_SET(VXGE_ERR, VXGE_COMPONENT_LL, vdev);
2646
7adf7d1b
JM		 2647 /* Restore the DA, VID table and also multicast and promiscuous mode
2648 * states
2649 */
2650 if (vdev->all_multi_flg) {
2651 for (i = 0; i < vdev->no_of_vpath; i++) {
2652 vpath = &vdev->vpaths[i];
2653 vxge_restore_vpath_mac_addr(vpath);
2654 vxge_restore_vpath_vid_table(vpath);
2655
2656 status = vxge_hw_vpath_mcast_enable(vpath->handle);
2657 if (status != VXGE_HW_OK)
2658 vxge_debug_init(VXGE_ERR,
2659 "%s:%d Enabling multicast failed",
2660 __func__, __LINE__);
2661 }
703da5a1
RV		 2662 }
2663
2664 /* Enable vpath to sniff all unicast/multicast traffic that not
2665 * addressed to them. We allow promiscous mode for PF only
2666 */
2667
2668 val64 = 0;
2669 for (i = 0; i < VXGE_HW_MAX_VIRTUAL_PATHS; i++)
2670 val64 |= VXGE_HW_RXMAC_AUTHORIZE_ALL_ADDR_VP(i);
2671
2672 vxge_hw_mgmt_reg_write(vdev->devh,
2673 vxge_hw_mgmt_reg_type_mrpcim,
2674 0,
2675 (ulong)offsetof(struct vxge_hw_mrpcim_reg,
2676 rxmac_authorize_all_addr),
2677 val64);
2678
2679 vxge_hw_mgmt_reg_write(vdev->devh,
2680 vxge_hw_mgmt_reg_type_mrpcim,
2681 0,
2682 (ulong)offsetof(struct vxge_hw_mrpcim_reg,
2683 rxmac_authorize_all_vid),
2684 val64);
2685
2686 vxge_set_multicast(dev);
2687
2688 /* Enabling Bcast and mcast for all vpath */
2689 for (i = 0; i < vdev->no_of_vpath; i++) {
7adf7d1b
JM		 2690 vpath = &vdev->vpaths[i];
2691 status = vxge_hw_vpath_bcast_enable(vpath->handle);
703da5a1
RV		 2692 if (status != VXGE_HW_OK)
2693 vxge_debug_init(VXGE_ERR,
2694 "%s : Can not enable bcast for vpath "
2695 "id %d", dev->name, i);
2696 if (vdev->config.addr_learn_en) {
7adf7d1b 2697 status = vxge_hw_vpath_mcast_enable(vpath->handle);
703da5a1
RV		 2698 if (status != VXGE_HW_OK)
2699 vxge_debug_init(VXGE_ERR,
2700 "%s : Can not enable mcast for vpath "
2701 "id %d", dev->name, i);
2702 }
2703 }
2704
2705 vxge_hw_device_setpause_data(vdev->devh, 0,
2706 vdev->config.tx_pause_enable,
2707 vdev->config.rx_pause_enable);
2708
2709 if (vdev->vp_reset_timer.function == NULL)
2710 vxge_os_timer(vdev->vp_reset_timer,
2711 vxge_poll_vp_reset, vdev, (HZ/2));
2712
2713 if (vdev->vp_lockup_timer.function == NULL)
2714 vxge_os_timer(vdev->vp_lockup_timer,
2715 vxge_poll_vp_lockup, vdev, (HZ/2));
2716
2717 set_bit(__VXGE_STATE_CARD_UP, &vdev->state);
2718
2719 smp_wmb();
2720
2721 if (vxge_hw_device_link_state_get(vdev->devh) == VXGE_HW_LINK_UP) {
2722 netif_carrier_on(vdev->ndev);
75f5e1c6 2723 netdev_notice(vdev->ndev, "Link Up\n");
703da5a1
RV		 2724 vdev->stats.link_up++;
2725 }
2726
2727 vxge_hw_device_intr_enable(vdev->devh);
2728
2729 smp_wmb();
2730
2731 for (i = 0; i < vdev->no_of_vpath; i++) {
7adf7d1b
JM		 2732 vpath = &vdev->vpaths[i];
2733
2734 vxge_hw_vpath_enable(vpath->handle);
703da5a1 2735 smp_wmb();
7adf7d1b 2736 vxge_hw_vpath_rx_doorbell_init(vpath->handle);
703da5a1
RV		 2737 }
2738
d03848e0 2739 netif_tx_start_all_queues(vdev->ndev);
703da5a1
RV		 2740 goto out0;
2741
2742out2:
2743 vxge_rem_isr(vdev);
2744
2745 /* Disable napi */
2746 if (vdev->config.intr_type != MSI_X)
2747 napi_disable(&vdev->napi);
2748 else {
2749 for (i = 0; i < vdev->no_of_vpath; i++)
2750 napi_disable(&vdev->vpaths[i].ring.napi);
2751 }
2752
2753out1:
2754 vxge_close_vpaths(vdev, 0);
2755out0:
2756 vxge_debug_entryexit(VXGE_TRACE,
2757 "%s: %s:%d Exiting...",
2758 dev->name, __func__, __LINE__);
2759 return ret;
2760}
2761
2762/* Loop throught the mac address list and delete all the entries */
42821a5b 2763static void vxge_free_mac_add_list(struct vxge_vpath *vpath)
703da5a1
RV		 2764{
2765
2766 struct list_head *entry, *next;
2767 if (list_empty(&vpath->mac_addr_list))
2768 return;
2769
2770 list_for_each_safe(entry, next, &vpath->mac_addr_list) {
2771 list_del(entry);
2772 kfree((struct vxge_mac_addrs *)entry);
2773 }
2774}
2775
2776static void vxge_napi_del_all(struct vxgedev *vdev)
2777{
2778 int i;
2779 if (vdev->config.intr_type != MSI_X)
2780 netif_napi_del(&vdev->napi);
2781 else {
2782 for (i = 0; i < vdev->no_of_vpath; i++)
2783 netif_napi_del(&vdev->vpaths[i].ring.napi);
2784 }
703da5a1
RV		 2785}
2786
42821a5b 2787static int do_vxge_close(struct net_device *dev, int do_io)
703da5a1
RV		 2788{
2789 enum vxge_hw_status status;
2790 struct vxgedev *vdev;
2791 struct __vxge_hw_device *hldev;
2792 int i;
2793 u64 val64, vpath_vector;
2794 vxge_debug_entryexit(VXGE_TRACE, "%s: %s:%d",
2795 dev->name, __func__, __LINE__);
2796
2797 vdev = (struct vxgedev *)netdev_priv(dev);
2798 hldev = (struct __vxge_hw_device *) pci_get_drvdata(vdev->pdev);
2799
bd9ee680
SH		 2800 if (unlikely(!is_vxge_card_up(vdev)))
2801 return 0;
2802
703da5a1
RV		 2803 /* If vxge_handle_crit_err task is executing,
2804 * wait till it completes. */
2805 while (test_and_set_bit(__VXGE_STATE_RESET_CARD, &vdev->state))
2806 msleep(50);
2807
703da5a1
RV		 2808 if (do_io) {
2809 /* Put the vpath back in normal mode */
2810 vpath_vector = vxge_mBIT(vdev->vpaths[0].device_id);
2811 status = vxge_hw_mgmt_reg_read(vdev->devh,
2812 vxge_hw_mgmt_reg_type_mrpcim,
2813 0,
2814 (ulong)offsetof(
2815 struct vxge_hw_mrpcim_reg,
2816 rts_mgr_cbasin_cfg),
2817 &val64);
2818
2819 if (status == VXGE_HW_OK) {
2820 val64 &= ~vpath_vector;
2821 status = vxge_hw_mgmt_reg_write(vdev->devh,
2822 vxge_hw_mgmt_reg_type_mrpcim,
2823 0,
2824 (ulong)offsetof(
2825 struct vxge_hw_mrpcim_reg,
2826 rts_mgr_cbasin_cfg),
2827 val64);
2828 }
2829
2830 /* Remove the function 0 from promiscous mode */
2831 vxge_hw_mgmt_reg_write(vdev->devh,
2832 vxge_hw_mgmt_reg_type_mrpcim,
2833 0,
2834 (ulong)offsetof(struct vxge_hw_mrpcim_reg,
2835 rxmac_authorize_all_addr),
2836 0);
2837
2838 vxge_hw_mgmt_reg_write(vdev->devh,
2839 vxge_hw_mgmt_reg_type_mrpcim,
2840 0,
2841 (ulong)offsetof(struct vxge_hw_mrpcim_reg,
2842 rxmac_authorize_all_vid),
2843 0);
2844
2845 smp_wmb();
2846 }
2847 del_timer_sync(&vdev->vp_lockup_timer);
2848
2849 del_timer_sync(&vdev->vp_reset_timer);
2850
4d2a5b40
JM		 2851 if (do_io)
2852 vxge_hw_device_wait_receive_idle(hldev);
2853
2854 clear_bit(__VXGE_STATE_CARD_UP, &vdev->state);
2855
703da5a1
RV		 2856 /* Disable napi */
2857 if (vdev->config.intr_type != MSI_X)
2858 napi_disable(&vdev->napi);
2859 else {
2860 for (i = 0; i < vdev->no_of_vpath; i++)
2861 napi_disable(&vdev->vpaths[i].ring.napi);
2862 }
2863
2864 netif_carrier_off(vdev->ndev);
75f5e1c6 2865 netdev_notice(vdev->ndev, "Link Down\n");
d03848e0 2866 netif_tx_stop_all_queues(vdev->ndev);
703da5a1
RV		 2867
2868 /* Note that at this point xmit() is stopped by upper layer */
2869 if (do_io)
2870 vxge_hw_device_intr_disable(vdev->devh);
2871
703da5a1
RV		 2872 vxge_rem_isr(vdev);
2873
2874 vxge_napi_del_all(vdev);
2875
2876 if (do_io)
2877 vxge_reset_all_vpaths(vdev);
2878
2879 vxge_close_vpaths(vdev, 0);
2880
2881 vxge_debug_entryexit(VXGE_TRACE,
2882 "%s: %s:%d Exiting...", dev->name, __func__, __LINE__);
2883
703da5a1
RV		 2884 clear_bit(__VXGE_STATE_RESET_CARD, &vdev->state);
2885
2886 return 0;
2887}
2888
2889/**
2890 * vxge_close
2891 * @dev: device pointer.
2892 *
2893 * This is the stop entry point of the driver. It needs to undo exactly
2894 * whatever was done by the open entry point, thus it's usually referred to
2895 * as the close function.Among other things this function mainly stops the
2896 * Rx side of the NIC and frees all the Rx buffers in the Rx rings.
2897 * Return value: '0' on success and an appropriate (-)ve integer as
2898 * defined in errno.h file on failure.
2899 */
42821a5b 2900static int
703da5a1
RV		 2901vxge_close(struct net_device *dev)
2902{
2903 do_vxge_close(dev, 1);
2904 return 0;
2905}
2906
2907/**
2908 * vxge_change_mtu
2909 * @dev: net device pointer.
2910 * @new_mtu :the new MTU size for the device.
2911 *
2912 * A driver entry point to change MTU size for the device. Before changing
2913 * the MTU the device must be stopped.
2914 */
2915static int vxge_change_mtu(struct net_device *dev, int new_mtu)
2916{
2917 struct vxgedev *vdev = netdev_priv(dev);
2918
2919 vxge_debug_entryexit(vdev->level_trace,
2920 "%s:%d", __func__, __LINE__);
2921 if ((new_mtu < VXGE_HW_MIN_MTU) || (new_mtu > VXGE_HW_MAX_MTU)) {
2922 vxge_debug_init(vdev->level_err,
2923 "%s: mtu size is invalid", dev->name);
2924 return -EPERM;
2925 }
2926
2927 /* check if device is down already */
2928 if (unlikely(!is_vxge_card_up(vdev))) {
2929 /* just store new value, will use later on open() */
2930 dev->mtu = new_mtu;
2931 vxge_debug_init(vdev->level_err,
2932 "%s", "device is down on MTU change");
2933 return 0;
2934 }
2935
2936 vxge_debug_init(vdev->level_trace,
2937 "trying to apply new MTU %d", new_mtu);
2938
2939 if (vxge_close(dev))
2940 return -EIO;
2941
2942 dev->mtu = new_mtu;
2943 vdev->mtu = new_mtu;
2944
2945 if (vxge_open(dev))
2946 return -EIO;
2947
2948 vxge_debug_init(vdev->level_trace,
2949 "%s: MTU changed to %d", vdev->ndev->name, new_mtu);
2950
2951 vxge_debug_entryexit(vdev->level_trace,
2952 "%s:%d Exiting...", __func__, __LINE__);
2953
2954 return 0;
2955}
2956
2957/**
dd57f970 2958 * vxge_get_stats64
703da5a1 2959 * @dev: pointer to the device structure
dd57f970 2960 * @stats: pointer to struct rtnl_link_stats64
703da5a1 2961 *
703da5a1 2962 */
dd57f970
ED		 2963static struct rtnl_link_stats64 *
2964vxge_get_stats64(struct net_device *dev, struct rtnl_link_stats64 *net_stats)
703da5a1 2965{
dd57f970 2966 struct vxgedev *vdev = netdev_priv(dev);
703da5a1
RV		 2967 int k;
2968
dd57f970 2969 /* net_stats already zeroed by caller */
703da5a1
RV		 2970 for (k = 0; k < vdev->no_of_vpath; k++) {
2971 net_stats->rx_packets += vdev->vpaths[k].ring.stats.rx_frms;
2972 net_stats->rx_bytes += vdev->vpaths[k].ring.stats.rx_bytes;
2973 net_stats->rx_errors += vdev->vpaths[k].ring.stats.rx_errors;
2974 net_stats->multicast += vdev->vpaths[k].ring.stats.rx_mcast;
2975 net_stats->rx_dropped +=
2976 vdev->vpaths[k].ring.stats.rx_dropped;
2977
2978 net_stats->tx_packets += vdev->vpaths[k].fifo.stats.tx_frms;
2979 net_stats->tx_bytes += vdev->vpaths[k].fifo.stats.tx_bytes;
2980 net_stats->tx_errors += vdev->vpaths[k].fifo.stats.tx_errors;
2981 }
2982
2983 return net_stats;
2984}
2985
b81b3733
JM		 2986static enum vxge_hw_status vxge_timestamp_config(struct vxgedev *vdev,
2987 int enable)
2988{
2989 enum vxge_hw_status status;
2990 u64 val64;
2991
2992 /* Timestamp is passed to the driver via the FCS, therefore we
2993 * must disable the FCS stripping by the adapter. Since this is
2994 * required for the driver to load (due to a hardware bug),
2995 * there is no need to do anything special here.
2996 */
2997 if (enable)
2998 val64 = VXGE_HW_XMAC_TIMESTAMP_EN |
2999 VXGE_HW_XMAC_TIMESTAMP_USE_LINK_ID(0) |
3000 VXGE_HW_XMAC_TIMESTAMP_INTERVAL(0);
3001 else
3002 val64 = 0;
3003
3004 status = vxge_hw_mgmt_reg_write(vdev->devh,
3005 vxge_hw_mgmt_reg_type_mrpcim,
3006 0,
3007 offsetof(struct vxge_hw_mrpcim_reg,
3008 xmac_timestamp),
3009 val64);
3010 vxge_hw_device_flush_io(vdev->devh);
3011 return status;
3012}
3013
3014static int vxge_hwtstamp_ioctl(struct vxgedev *vdev, void __user *data)
3015{
3016 struct hwtstamp_config config;
3017 enum vxge_hw_status status;
3018 int i;
3019
3020 if (copy_from_user(&config, data, sizeof(config)))
3021 return -EFAULT;
3022
3023 /* reserved for future extensions */
3024 if (config.flags)
3025 return -EINVAL;
3026
3027 /* Transmit HW Timestamp not supported */
3028 switch (config.tx_type) {
3029 case HWTSTAMP_TX_OFF:
3030 break;
3031 case HWTSTAMP_TX_ON:
3032 default:
3033 return -ERANGE;
3034 }
3035
3036 switch (config.rx_filter) {
3037 case HWTSTAMP_FILTER_NONE:
3038 status = vxge_timestamp_config(vdev, 0);
3039 if (status != VXGE_HW_OK)
3040 return -EFAULT;
3041
3042 vdev->rx_hwts = 0;
3043 config.rx_filter = HWTSTAMP_FILTER_NONE;
3044 break;
3045
3046 case HWTSTAMP_FILTER_ALL:
3047 case HWTSTAMP_FILTER_SOME:
3048 case HWTSTAMP_FILTER_PTP_V1_L4_EVENT:
3049 case HWTSTAMP_FILTER_PTP_V1_L4_SYNC:
3050 case HWTSTAMP_FILTER_PTP_V1_L4_DELAY_REQ:
3051 case HWTSTAMP_FILTER_PTP_V2_L4_EVENT:
3052 case HWTSTAMP_FILTER_PTP_V2_L4_SYNC:
3053 case HWTSTAMP_FILTER_PTP_V2_L4_DELAY_REQ:
3054 case HWTSTAMP_FILTER_PTP_V2_L2_EVENT:
3055 case HWTSTAMP_FILTER_PTP_V2_L2_SYNC:
3056 case HWTSTAMP_FILTER_PTP_V2_L2_DELAY_REQ:
3057 case HWTSTAMP_FILTER_PTP_V2_EVENT:
3058 case HWTSTAMP_FILTER_PTP_V2_SYNC:
3059 case HWTSTAMP_FILTER_PTP_V2_DELAY_REQ:
3060 status = vxge_timestamp_config(vdev, 1);
3061 if (status != VXGE_HW_OK)
3062 return -EFAULT;
3063
3064 vdev->rx_hwts = 1;
3065 config.rx_filter = HWTSTAMP_FILTER_ALL;
3066 break;
3067
3068 default:
3069 return -ERANGE;
3070 }
3071
3072 for (i = 0; i < vdev->no_of_vpath; i++)
3073 vdev->vpaths[i].ring.rx_hwts = vdev->rx_hwts;
3074
3075 if (copy_to_user(data, &config, sizeof(config)))
3076 return -EFAULT;
3077
3078 return 0;
3079}
3080
703da5a1
RV		 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{
b81b3733
JM		 3093 struct vxgedev *vdev = netdev_priv(dev);
3094 int ret;
3095
3096 switch (cmd) {
3097 case SIOCSHWTSTAMP:
3098 ret = vxge_hwtstamp_ioctl(vdev, rq->ifr_data);
3099 if (ret)
3100 return ret;
3101 break;
3102 default:
3103 return -EOPNOTSUPP;
3104 }
3105
3106 return 0;
703da5a1
RV		 3107}
3108
3109/**
3110 * vxge_tx_watchdog
3111 * @dev: pointer to net device structure
3112 *
3113 * Watchdog for transmit side.
3114 * This function is triggered if the Tx Queue is stopped
3115 * for a pre-defined amount of time when the Interface is still up.
3116 */
3117static void
3118vxge_tx_watchdog(struct net_device *dev)
3119{
3120 struct vxgedev *vdev;
3121
3122 vxge_debug_entryexit(VXGE_TRACE, "%s:%d", __func__, __LINE__);
3123
3124 vdev = (struct vxgedev *)netdev_priv(dev);
3125
3126 vdev->cric_err_event = VXGE_HW_EVENT_RESET_START;
3127
3128 vxge_reset(vdev);
3129 vxge_debug_entryexit(VXGE_TRACE,
3130 "%s:%d Exiting...", __func__, __LINE__);
3131}
3132
3133/**
3134 * vxge_vlan_rx_register
3135 * @dev: net device pointer.
3136 * @grp: vlan group
3137 *
3138 * Vlan group registration
3139 */
3140static void
3141vxge_vlan_rx_register(struct net_device *dev, struct vlan_group *grp)
3142{
3143 struct vxgedev *vdev;
3144 struct vxge_vpath *vpath;
3145 int vp;
3146 u64 vid;
3147 enum vxge_hw_status status;
3148 int i;
3149
3150 vxge_debug_entryexit(VXGE_TRACE, "%s:%d", __func__, __LINE__);
3151
3152 vdev = (struct vxgedev *)netdev_priv(dev);
3153
3154 vpath = &vdev->vpaths[0];
3155 if ((NULL == grp) && (vpath->is_open)) {
3156 /* Get the first vlan */
3157 status = vxge_hw_vpath_vid_get(vpath->handle, &vid);
3158
3159 while (status == VXGE_HW_OK) {
3160
3161 /* Delete this vlan from the vid table */
3162 for (vp = 0; vp < vdev->no_of_vpath; vp++) {
3163 vpath = &vdev->vpaths[vp];
3164 if (!vpath->is_open)
3165 continue;
3166
3167 vxge_hw_vpath_vid_delete(vpath->handle, vid);
3168 }
3169
3170 /* Get the next vlan to be deleted */
3171 vpath = &vdev->vpaths[0];
3172 status = vxge_hw_vpath_vid_get(vpath->handle, &vid);
3173 }
3174 }
3175
3176 vdev->vlgrp = grp;
3177
3178 for (i = 0; i < vdev->no_of_vpath; i++) {
3179 if (vdev->vpaths[i].is_configured)
3180 vdev->vpaths[i].ring.vlgrp = grp;
3181 }
3182
3183 vxge_debug_entryexit(VXGE_TRACE,
3184 "%s:%d Exiting...", __func__, __LINE__);
3185}
3186
3187/**
3188 * vxge_vlan_rx_add_vid
3189 * @dev: net device pointer.
3190 * @vid: vid
3191 *
3192 * Add the vlan id to the devices vlan id table
3193 */
3194static void
3195vxge_vlan_rx_add_vid(struct net_device *dev, unsigned short vid)
3196{
3197 struct vxgedev *vdev;
3198 struct vxge_vpath *vpath;
3199 int vp_id;
3200
3201 vdev = (struct vxgedev *)netdev_priv(dev);
3202
3203 /* Add these vlan to the vid table */
3204 for (vp_id = 0; vp_id < vdev->no_of_vpath; vp_id++) {
3205 vpath = &vdev->vpaths[vp_id];
3206 if (!vpath->is_open)
3207 continue;
3208 vxge_hw_vpath_vid_add(vpath->handle, vid);
3209 }
3210}
3211
3212/**
3213 * vxge_vlan_rx_add_vid
3214 * @dev: net device pointer.
3215 * @vid: vid
3216 *
3217 * Remove the vlan id from the device's vlan id table
3218 */
3219static void
3220vxge_vlan_rx_kill_vid(struct net_device *dev, unsigned short vid)
3221{
3222 struct vxgedev *vdev;
3223 struct vxge_vpath *vpath;
3224 int vp_id;
3225
3226 vxge_debug_entryexit(VXGE_TRACE, "%s:%d", __func__, __LINE__);
3227
3228 vdev = (struct vxgedev *)netdev_priv(dev);
3229
3230 vlan_group_set_device(vdev->vlgrp, vid, NULL);
3231
3232 /* Delete this vlan from the vid table */
3233 for (vp_id = 0; vp_id < vdev->no_of_vpath; vp_id++) {
3234 vpath = &vdev->vpaths[vp_id];
3235 if (!vpath->is_open)
3236 continue;
3237 vxge_hw_vpath_vid_delete(vpath->handle, vid);
3238 }
3239 vxge_debug_entryexit(VXGE_TRACE,
3240 "%s:%d Exiting...", __func__, __LINE__);
3241}
3242
3243static const struct net_device_ops vxge_netdev_ops = {
3244 .ndo_open = vxge_open,
3245 .ndo_stop = vxge_close,
dd57f970 3246 .ndo_get_stats64 = vxge_get_stats64,
703da5a1
RV		 3247 .ndo_start_xmit = vxge_xmit,
3248 .ndo_validate_addr = eth_validate_addr,
3249 .ndo_set_multicast_list = vxge_set_multicast,
3250
3251 .ndo_do_ioctl = vxge_ioctl,
3252
3253 .ndo_set_mac_address = vxge_set_mac_addr,
3254 .ndo_change_mtu = vxge_change_mtu,
3255 .ndo_vlan_rx_register = vxge_vlan_rx_register,
3256 .ndo_vlan_rx_kill_vid = vxge_vlan_rx_kill_vid,
3257 .ndo_vlan_rx_add_vid = vxge_vlan_rx_add_vid,
3258
3259 .ndo_tx_timeout = vxge_tx_watchdog,
3260#ifdef CONFIG_NET_POLL_CONTROLLER
3261 .ndo_poll_controller = vxge_netpoll,
3262#endif
3263};
3264
42821a5b 3265static int __devinit vxge_device_register(struct __vxge_hw_device *hldev,
3266 struct vxge_config *config,
3267 int high_dma, int no_of_vpath,
3268 struct vxgedev **vdev_out)
703da5a1
RV		 3269{
3270 struct net_device *ndev;
3271 enum vxge_hw_status status = VXGE_HW_OK;
3272 struct vxgedev *vdev;
98f45da2 3273 int ret = 0, no_of_queue = 1;
703da5a1
RV		 3274 u64 stat;
3275
3276 *vdev_out = NULL;
d03848e0 3277 if (config->tx_steering_type)
703da5a1
RV		 3278 no_of_queue = no_of_vpath;
3279
3280 ndev = alloc_etherdev_mq(sizeof(struct vxgedev),
3281 no_of_queue);
3282 if (ndev == NULL) {
3283 vxge_debug_init(
3284 vxge_hw_device_trace_level_get(hldev),
3285 "%s : device allocation failed", __func__);
3286 ret = -ENODEV;
3287 goto _out0;
3288 }
3289
3290 vxge_debug_entryexit(
3291 vxge_hw_device_trace_level_get(hldev),
3292 "%s: %s:%d Entering...",
3293 ndev->name, __func__, __LINE__);
3294
3295 vdev = netdev_priv(ndev);
3296 memset(vdev, 0, sizeof(struct vxgedev));
3297
3298 vdev->ndev = ndev;
3299 vdev->devh = hldev;
3300 vdev->pdev = hldev->pdev;
3301 memcpy(&vdev->config, config, sizeof(struct vxge_config));
3302 vdev->rx_csum = 1; /* Enable Rx CSUM by default. */
b81b3733 3303 vdev->rx_hwts = 0;
703da5a1
RV		 3304
3305 SET_NETDEV_DEV(ndev, &vdev->pdev->dev);
3306
3307 ndev->features |= NETIF_F_HW_VLAN_TX | NETIF_F_HW_VLAN_RX |
3308 NETIF_F_HW_VLAN_FILTER;
3309 /* Driver entry points */
3310 ndev->irq = vdev->pdev->irq;
3311 ndev->base_addr = (unsigned long) hldev->bar0;
3312
3313 ndev->netdev_ops = &vxge_netdev_ops;
3314
3315 ndev->watchdog_timeo = VXGE_LL_WATCH_DOG_TIMEOUT;
3316
42821a5b 3317 vxge_initialize_ethtool_ops(ndev);
703da5a1 3318
47f01db4
JM		 3319 if (vdev->config.rth_steering != NO_STEERING) {
3320 ndev->features |= NETIF_F_RXHASH;
3321 hldev->config.rth_en = VXGE_HW_RTH_ENABLE;
3322 }
3323
703da5a1
RV		 3324 /* Allocate memory for vpath */
3325 vdev->vpaths = kzalloc((sizeof(struct vxge_vpath)) *
3326 no_of_vpath, GFP_KERNEL);
3327 if (!vdev->vpaths) {
3328 vxge_debug_init(VXGE_ERR,
3329 "%s: vpath memory allocation failed",
3330 vdev->ndev->name);
3331 ret = -ENODEV;
3332 goto _out1;
3333 }
3334
3335 ndev->features |= NETIF_F_SG;
3336
3337 ndev->features |= NETIF_F_HW_CSUM;
3338 vxge_debug_init(vxge_hw_device_trace_level_get(hldev),
3339 "%s : checksuming enabled", __func__);
3340
3341 if (high_dma) {
3342 ndev->features |= NETIF_F_HIGHDMA;
3343 vxge_debug_init(vxge_hw_device_trace_level_get(hldev),
3344 "%s : using High DMA", __func__);
3345 }
3346
3347 ndev->features |= NETIF_F_TSO | NETIF_F_TSO6;
3348
3349 if (vdev->config.gro_enable)
3350 ndev->features |= NETIF_F_GRO;
3351
703da5a1
RV		 3352 if (register_netdev(ndev)) {
3353 vxge_debug_init(vxge_hw_device_trace_level_get(hldev),
3354 "%s: %s : device registration failed!",
3355 ndev->name, __func__);
3356 ret = -ENODEV;
3357 goto _out2;
3358 }
3359
3360 /* Set the factory defined MAC address initially */
3361 ndev->addr_len = ETH_ALEN;
3362
3363 /* Make Link state as off at this point, when the Link change
3364 * interrupt comes the state will be automatically changed to
3365 * the right state.
3366 */
3367 netif_carrier_off(ndev);
3368
3369 vxge_debug_init(vxge_hw_device_trace_level_get(hldev),
3370 "%s: Ethernet device registered",
3371 ndev->name);
3372
e8ac1756 3373 hldev->ndev = ndev;
703da5a1
RV		 3374 *vdev_out = vdev;
3375
3376 /* Resetting the Device stats */
3377 status = vxge_hw_mrpcim_stats_access(
3378 hldev,
3379 VXGE_HW_STATS_OP_CLEAR_ALL_STATS,
3380 0,
3381 0,
3382 &stat);
3383
3384 if (status == VXGE_HW_ERR_PRIVILAGED_OPEARATION)
3385 vxge_debug_init(
3386 vxge_hw_device_trace_level_get(hldev),
3387 "%s: device stats clear returns"
3388 "VXGE_HW_ERR_PRIVILAGED_OPEARATION", ndev->name);
3389
3390 vxge_debug_entryexit(vxge_hw_device_trace_level_get(hldev),
3391 "%s: %s:%d Exiting...",
3392 ndev->name, __func__, __LINE__);
3393
3394 return ret;
3395_out2:
3396 kfree(vdev->vpaths);
3397_out1:
3398 free_netdev(ndev);
3399_out0:
3400 return ret;
3401}
3402
3403/*
3404 * vxge_device_unregister
3405 *
3406 * This function will unregister and free network device
3407 */
42821a5b 3408static void
703da5a1
RV		 3409vxge_device_unregister(struct __vxge_hw_device *hldev)
3410{
3411 struct vxgedev *vdev;
3412 struct net_device *dev;
3413 char buf[IFNAMSIZ];
3414#if ((VXGE_DEBUG_INIT & VXGE_DEBUG_MASK) || \
3415 (VXGE_DEBUG_ENTRYEXIT & VXGE_DEBUG_MASK))
3416 u32 level_trace;
3417#endif
3418
3419 dev = hldev->ndev;
3420 vdev = netdev_priv(dev);
3421#if ((VXGE_DEBUG_INIT & VXGE_DEBUG_MASK) || \
3422 (VXGE_DEBUG_ENTRYEXIT & VXGE_DEBUG_MASK))
3423 level_trace = vdev->level_trace;
3424#endif
3425 vxge_debug_entryexit(level_trace,
3426 "%s: %s:%d", vdev->ndev->name, __func__, __LINE__);
3427
3428 memcpy(buf, vdev->ndev->name, IFNAMSIZ);
3429
3430 /* in 2.6 will call stop() if device is up */
3431 unregister_netdev(dev);
3432
3433 flush_scheduled_work();
3434
3435 vxge_debug_init(level_trace, "%s: ethernet device unregistered", buf);
3436 vxge_debug_entryexit(level_trace,
3437 "%s: %s:%d Exiting...", buf, __func__, __LINE__);
3438}
3439
3440/*
3441 * vxge_callback_crit_err
3442 *
3443 * This function is called by the alarm handler in interrupt context.
3444 * Driver must analyze it based on the event type.
3445 */
3446static void
3447vxge_callback_crit_err(struct __vxge_hw_device *hldev,
3448 enum vxge_hw_event type, u64 vp_id)
3449{
3450 struct net_device *dev = hldev->ndev;
3451 struct vxgedev *vdev = (struct vxgedev *)netdev_priv(dev);
98f45da2 3452 struct vxge_vpath *vpath = NULL;
703da5a1
RV		 3453 int vpath_idx;
3454
3455 vxge_debug_entryexit(vdev->level_trace,
3456 "%s: %s:%d", vdev->ndev->name, __func__, __LINE__);
3457
3458 /* Note: This event type should be used for device wide
3459 * indications only - Serious errors, Slot freeze and critical errors
3460 */
3461 vdev->cric_err_event = type;
3462
98f45da2
JM		 3463 for (vpath_idx = 0; vpath_idx < vdev->no_of_vpath; vpath_idx++) {
3464 vpath = &vdev->vpaths[vpath_idx];
3465 if (vpath->device_id == vp_id)
703da5a1 3466 break;
98f45da2 3467 }
703da5a1
RV		 3468
3469 if (!test_bit(__VXGE_STATE_RESET_CARD, &vdev->state)) {
3470 if (type == VXGE_HW_EVENT_SLOT_FREEZE) {
3471 vxge_debug_init(VXGE_ERR,
3472 "%s: Slot is frozen", vdev->ndev->name);
3473 } else if (type == VXGE_HW_EVENT_SERR) {
3474 vxge_debug_init(VXGE_ERR,
3475 "%s: Encountered Serious Error",
3476 vdev->ndev->name);
3477 } else if (type == VXGE_HW_EVENT_CRITICAL_ERR)
3478 vxge_debug_init(VXGE_ERR,
3479 "%s: Encountered Critical Error",
3480 vdev->ndev->name);
3481 }
3482
3483 if ((type == VXGE_HW_EVENT_SERR) ||
3484 (type == VXGE_HW_EVENT_SLOT_FREEZE)) {
3485 if (unlikely(vdev->exec_mode))
3486 clear_bit(__VXGE_STATE_CARD_UP, &vdev->state);
3487 } else if (type == VXGE_HW_EVENT_CRITICAL_ERR) {
3488 vxge_hw_device_mask_all(hldev);
3489 if (unlikely(vdev->exec_mode))
3490 clear_bit(__VXGE_STATE_CARD_UP, &vdev->state);
3491 } else if ((type == VXGE_HW_EVENT_FIFO_ERR) ||
3492 (type == VXGE_HW_EVENT_VPATH_ERR)) {
3493
3494 if (unlikely(vdev->exec_mode))
3495 clear_bit(__VXGE_STATE_CARD_UP, &vdev->state);
3496 else {
3497 /* check if this vpath is already set for reset */
3498 if (!test_and_set_bit(vpath_idx, &vdev->vp_reset)) {
3499
3500 /* disable interrupts for this vpath */
3501 vxge_vpath_intr_disable(vdev, vpath_idx);
3502
3503 /* stop the queue for this vpath */
98f45da2 3504 netif_tx_stop_queue(vpath->fifo.txq);
703da5a1
RV		 3505 }
3506 }
3507 }
3508
3509 vxge_debug_entryexit(vdev->level_trace,
3510 "%s: %s:%d Exiting...",
3511 vdev->ndev->name, __func__, __LINE__);
3512}
3513
3514static void verify_bandwidth(void)
3515{
3516 int i, band_width, total = 0, equal_priority = 0;
3517
3518 /* 1. If user enters 0 for some fifo, give equal priority to all */
3519 for (i = 0; i < VXGE_HW_MAX_VIRTUAL_PATHS; i++) {
3520 if (bw_percentage[i] == 0) {
3521 equal_priority = 1;
3522 break;
3523 }
3524 }
3525
3526 if (!equal_priority) {
3527 /* 2. If sum exceeds 100, give equal priority to all */
3528 for (i = 0; i < VXGE_HW_MAX_VIRTUAL_PATHS; i++) {
3529 if (bw_percentage[i] == 0xFF)
3530 break;
3531
3532 total += bw_percentage[i];
3533 if (total > VXGE_HW_VPATH_BANDWIDTH_MAX) {
3534 equal_priority = 1;
3535 break;
3536 }
3537 }
3538 }
3539
3540 if (!equal_priority) {
3541 /* Is all the bandwidth consumed? */
3542 if (total < VXGE_HW_VPATH_BANDWIDTH_MAX) {
3543 if (i < VXGE_HW_MAX_VIRTUAL_PATHS) {
3544 /* Split rest of bw equally among next VPs*/
3545 band_width =
3546 (VXGE_HW_VPATH_BANDWIDTH_MAX - total) /
3547 (VXGE_HW_MAX_VIRTUAL_PATHS - i);
3548 if (band_width < 2) /* min of 2% */
3549 equal_priority = 1;
3550 else {
3551 for (; i < VXGE_HW_MAX_VIRTUAL_PATHS;
3552 i++)
3553 bw_percentage[i] =
3554 band_width;
3555 }
3556 }
3557 } else if (i < VXGE_HW_MAX_VIRTUAL_PATHS)
3558 equal_priority = 1;
3559 }
3560
3561 if (equal_priority) {
3562 vxge_debug_init(VXGE_ERR,
3563 "%s: Assigning equal bandwidth to all the vpaths",
3564 VXGE_DRIVER_NAME);
3565 bw_percentage[0] = VXGE_HW_VPATH_BANDWIDTH_MAX /
3566 VXGE_HW_MAX_VIRTUAL_PATHS;
3567 for (i = 1; i < VXGE_HW_MAX_VIRTUAL_PATHS; i++)
3568 bw_percentage[i] = bw_percentage[0];
3569 }
703da5a1
RV		 3570}
3571
3572/*
3573 * Vpath configuration
3574 */
3575static int __devinit vxge_config_vpaths(
3576 struct vxge_hw_device_config *device_config,
3577 u64 vpath_mask, struct vxge_config *config_param)
3578{
3579 int i, no_of_vpaths = 0, default_no_vpath = 0, temp;
3580 u32 txdl_size, txdl_per_memblock;
3581
3582 temp = driver_config->vpath_per_dev;
3583 if ((driver_config->vpath_per_dev == VXGE_USE_DEFAULT) &&
3584 (max_config_dev == VXGE_MAX_CONFIG_DEV)) {
3585 /* No more CPU. Return vpath number as zero.*/
3586 if (driver_config->g_no_cpus == -1)
3587 return 0;
3588
3589 if (!driver_config->g_no_cpus)
3590 driver_config->g_no_cpus = num_online_cpus();
3591
3592 driver_config->vpath_per_dev = driver_config->g_no_cpus >> 1;
3593 if (!driver_config->vpath_per_dev)
3594 driver_config->vpath_per_dev = 1;
3595
3596 for (i = 0; i < VXGE_HW_MAX_VIRTUAL_PATHS; i++)
3597 if (!vxge_bVALn(vpath_mask, i, 1))
3598 continue;
3599 else
3600 default_no_vpath++;
3601 if (default_no_vpath < driver_config->vpath_per_dev)
3602 driver_config->vpath_per_dev = default_no_vpath;
3603
3604 driver_config->g_no_cpus = driver_config->g_no_cpus -
3605 (driver_config->vpath_per_dev * 2);
3606 if (driver_config->g_no_cpus <= 0)
3607 driver_config->g_no_cpus = -1;
3608 }
3609
3610 if (driver_config->vpath_per_dev == 1) {
3611 vxge_debug_ll_config(VXGE_TRACE,
3612 "%s: Disable tx and rx steering, "
3613 "as single vpath is configured", VXGE_DRIVER_NAME);
3614 config_param->rth_steering = NO_STEERING;
3615 config_param->tx_steering_type = NO_STEERING;
3616 device_config->rth_en = 0;
3617 }
3618
3619 /* configure bandwidth */
3620 for (i = 0; i < VXGE_HW_MAX_VIRTUAL_PATHS; i++)
3621 device_config->vp_config[i].min_bandwidth = bw_percentage[i];
3622
3623 for (i = 0; i < VXGE_HW_MAX_VIRTUAL_PATHS; i++) {
3624 device_config->vp_config[i].vp_id = i;
3625 device_config->vp_config[i].mtu = VXGE_HW_DEFAULT_MTU;
3626 if (no_of_vpaths < driver_config->vpath_per_dev) {
3627 if (!vxge_bVALn(vpath_mask, i, 1)) {
3628 vxge_debug_ll_config(VXGE_TRACE,
3629 "%s: vpath: %d is not available",
3630 VXGE_DRIVER_NAME, i);
3631 continue;
3632 } else {
3633 vxge_debug_ll_config(VXGE_TRACE,
3634 "%s: vpath: %d available",
3635 VXGE_DRIVER_NAME, i);
3636 no_of_vpaths++;
3637 }
3638 } else {
3639 vxge_debug_ll_config(VXGE_TRACE,
3640 "%s: vpath: %d is not configured, "
3641 "max_config_vpath exceeded",
3642 VXGE_DRIVER_NAME, i);
3643 break;
3644 }
3645
3646 /* Configure Tx fifo's */
3647 device_config->vp_config[i].fifo.enable =
3648 VXGE_HW_FIFO_ENABLE;
3649 device_config->vp_config[i].fifo.max_frags =
5beefb4f 3650 MAX_SKB_FRAGS + 1;
703da5a1
RV		 3651 device_config->vp_config[i].fifo.memblock_size =
3652 VXGE_HW_MIN_FIFO_MEMBLOCK_SIZE;
3653
5beefb4f
SH		 3654 txdl_size = device_config->vp_config[i].fifo.max_frags *
3655 sizeof(struct vxge_hw_fifo_txd);
703da5a1
RV		 3656 txdl_per_memblock = VXGE_HW_MIN_FIFO_MEMBLOCK_SIZE / txdl_size;
3657
3658 device_config->vp_config[i].fifo.fifo_blocks =
3659 ((VXGE_DEF_FIFO_LENGTH - 1) / txdl_per_memblock) + 1;
3660
3661 device_config->vp_config[i].fifo.intr =
3662 VXGE_HW_FIFO_QUEUE_INTR_DISABLE;
3663
3664 /* Configure tti properties */
3665 device_config->vp_config[i].tti.intr_enable =
3666 VXGE_HW_TIM_INTR_ENABLE;
3667
3668 device_config->vp_config[i].tti.btimer_val =
3669 (VXGE_TTI_BTIMER_VAL * 1000) / 272;
3670
3671 device_config->vp_config[i].tti.timer_ac_en =
3672 VXGE_HW_TIM_TIMER_AC_ENABLE;
3673
3674 /* For msi-x with napi (each vector
3675 has a handler of its own) -
3676 Set CI to OFF for all vpaths */
3677 device_config->vp_config[i].tti.timer_ci_en =
3678 VXGE_HW_TIM_TIMER_CI_DISABLE;
3679
3680 device_config->vp_config[i].tti.timer_ri_en =
3681 VXGE_HW_TIM_TIMER_RI_DISABLE;
3682
3683 device_config->vp_config[i].tti.util_sel =
3684 VXGE_HW_TIM_UTIL_SEL_LEGACY_TX_NET_UTIL;
3685
3686 device_config->vp_config[i].tti.ltimer_val =
3687 (VXGE_TTI_LTIMER_VAL * 1000) / 272;
3688
3689 device_config->vp_config[i].tti.rtimer_val =
3690 (VXGE_TTI_RTIMER_VAL * 1000) / 272;
3691
3692 device_config->vp_config[i].tti.urange_a = TTI_TX_URANGE_A;
3693 device_config->vp_config[i].tti.urange_b = TTI_TX_URANGE_B;
3694 device_config->vp_config[i].tti.urange_c = TTI_TX_URANGE_C;
3695 device_config->vp_config[i].tti.uec_a = TTI_TX_UFC_A;
3696 device_config->vp_config[i].tti.uec_b = TTI_TX_UFC_B;
3697 device_config->vp_config[i].tti.uec_c = TTI_TX_UFC_C;
3698 device_config->vp_config[i].tti.uec_d = TTI_TX_UFC_D;
3699
3700 /* Configure Rx rings */
3701 device_config->vp_config[i].ring.enable =
3702 VXGE_HW_RING_ENABLE;
3703
3704 device_config->vp_config[i].ring.ring_blocks =
3705 VXGE_HW_DEF_RING_BLOCKS;
3706 device_config->vp_config[i].ring.buffer_mode =
3707 VXGE_HW_RING_RXD_BUFFER_MODE_1;
3708 device_config->vp_config[i].ring.rxds_limit =
3709 VXGE_HW_DEF_RING_RXDS_LIMIT;
3710 device_config->vp_config[i].ring.scatter_mode =
3711 VXGE_HW_RING_SCATTER_MODE_A;
3712
3713 /* Configure rti properties */
3714 device_config->vp_config[i].rti.intr_enable =
3715 VXGE_HW_TIM_INTR_ENABLE;
3716
3717 device_config->vp_config[i].rti.btimer_val =
3718 (VXGE_RTI_BTIMER_VAL * 1000)/272;
3719
3720 device_config->vp_config[i].rti.timer_ac_en =
3721 VXGE_HW_TIM_TIMER_AC_ENABLE;
3722
3723 device_config->vp_config[i].rti.timer_ci_en =
3724 VXGE_HW_TIM_TIMER_CI_DISABLE;
3725
3726 device_config->vp_config[i].rti.timer_ri_en =
3727 VXGE_HW_TIM_TIMER_RI_DISABLE;
3728
3729 device_config->vp_config[i].rti.util_sel =
3730 VXGE_HW_TIM_UTIL_SEL_LEGACY_RX_NET_UTIL;
3731
3732 device_config->vp_config[i].rti.urange_a =
3733 RTI_RX_URANGE_A;
3734 device_config->vp_config[i].rti.urange_b =
3735 RTI_RX_URANGE_B;
3736 device_config->vp_config[i].rti.urange_c =
3737 RTI_RX_URANGE_C;
3738 device_config->vp_config[i].rti.uec_a = RTI_RX_UFC_A;
3739 device_config->vp_config[i].rti.uec_b = RTI_RX_UFC_B;
3740 device_config->vp_config[i].rti.uec_c = RTI_RX_UFC_C;
3741 device_config->vp_config[i].rti.uec_d = RTI_RX_UFC_D;
3742
3743 device_config->vp_config[i].rti.rtimer_val =
3744 (VXGE_RTI_RTIMER_VAL * 1000) / 272;
3745
3746 device_config->vp_config[i].rti.ltimer_val =
3747 (VXGE_RTI_LTIMER_VAL * 1000) / 272;
3748
3749 device_config->vp_config[i].rpa_strip_vlan_tag =
3750 vlan_tag_strip;
3751 }
3752
3753 driver_config->vpath_per_dev = temp;
3754 return no_of_vpaths;
3755}
3756
3757/* initialize device configuratrions */
3758static void __devinit vxge_device_config_init(
3759 struct vxge_hw_device_config *device_config,
3760 int *intr_type)
3761{
3762 /* Used for CQRQ/SRQ. */
3763 device_config->dma_blockpool_initial =
3764 VXGE_HW_INITIAL_DMA_BLOCK_POOL_SIZE;
3765
3766 device_config->dma_blockpool_max =
3767 VXGE_HW_MAX_DMA_BLOCK_POOL_SIZE;
3768
3769 if (max_mac_vpath > VXGE_MAX_MAC_ADDR_COUNT)
3770 max_mac_vpath = VXGE_MAX_MAC_ADDR_COUNT;
3771
3772#ifndef CONFIG_PCI_MSI
3773 vxge_debug_init(VXGE_ERR,
3774 "%s: This Kernel does not support "
3775 "MSI-X. Defaulting to INTA", VXGE_DRIVER_NAME);
3776 *intr_type = INTA;
3777#endif
3778
3779 /* Configure whether MSI-X or IRQL. */
3780 switch (*intr_type) {
3781 case INTA:
3782 device_config->intr_mode = VXGE_HW_INTR_MODE_IRQLINE;
3783 break;
3784
3785 case MSI_X:
3786 device_config->intr_mode = VXGE_HW_INTR_MODE_MSIX;
3787 break;
3788 }
3789 /* Timer period between device poll */
3790 device_config->device_poll_millis = VXGE_TIMER_DELAY;
3791
3792 /* Configure mac based steering. */
3793 device_config->rts_mac_en = addr_learn_en;
3794
3795 /* Configure Vpaths */
3796 device_config->rth_it_type = VXGE_HW_RTH_IT_TYPE_MULTI_IT;
3797
3798 vxge_debug_ll_config(VXGE_TRACE, "%s : Device Config Params ",
3799 __func__);
3800 vxge_debug_ll_config(VXGE_TRACE, "dma_blockpool_initial : %d",
3801 device_config->dma_blockpool_initial);
3802 vxge_debug_ll_config(VXGE_TRACE, "dma_blockpool_max : %d",
3803 device_config->dma_blockpool_max);
3804 vxge_debug_ll_config(VXGE_TRACE, "intr_mode : %d",
3805 device_config->intr_mode);
3806 vxge_debug_ll_config(VXGE_TRACE, "device_poll_millis : %d",
3807 device_config->device_poll_millis);
3808 vxge_debug_ll_config(VXGE_TRACE, "rts_mac_en : %d",
3809 device_config->rts_mac_en);
3810 vxge_debug_ll_config(VXGE_TRACE, "rth_en : %d",
3811 device_config->rth_en);
3812 vxge_debug_ll_config(VXGE_TRACE, "rth_it_type : %d",
3813 device_config->rth_it_type);
3814}
3815
3816static void __devinit vxge_print_parm(struct vxgedev *vdev, u64 vpath_mask)
3817{
3818 int i;
3819
3820 vxge_debug_init(VXGE_TRACE,
3821 "%s: %d Vpath(s) opened",
3822 vdev->ndev->name, vdev->no_of_vpath);
3823
3824 switch (vdev->config.intr_type) {
3825 case INTA:
3826 vxge_debug_init(VXGE_TRACE,
3827 "%s: Interrupt type INTA", vdev->ndev->name);
3828 break;
3829
3830 case MSI_X:
3831 vxge_debug_init(VXGE_TRACE,
3832 "%s: Interrupt type MSI-X", vdev->ndev->name);
3833 break;
3834 }
3835
3836 if (vdev->config.rth_steering) {
3837 vxge_debug_init(VXGE_TRACE,
3838 "%s: RTH steering enabled for TCP_IPV4",
3839 vdev->ndev->name);
3840 } else {
3841 vxge_debug_init(VXGE_TRACE,
3842 "%s: RTH steering disabled", vdev->ndev->name);
3843 }
3844
3845 switch (vdev->config.tx_steering_type) {
3846 case NO_STEERING:
3847 vxge_debug_init(VXGE_TRACE,
3848 "%s: Tx steering disabled", vdev->ndev->name);
3849 break;
3850 case TX_PRIORITY_STEERING:
3851 vxge_debug_init(VXGE_TRACE,
3852 "%s: Unsupported tx steering option",
3853 vdev->ndev->name);
3854 vxge_debug_init(VXGE_TRACE,
3855 "%s: Tx steering disabled", vdev->ndev->name);
3856 vdev->config.tx_steering_type = 0;
3857 break;
3858 case TX_VLAN_STEERING:
3859 vxge_debug_init(VXGE_TRACE,
3860 "%s: Unsupported tx steering option",
3861 vdev->ndev->name);
3862 vxge_debug_init(VXGE_TRACE,
3863 "%s: Tx steering disabled", vdev->ndev->name);
3864 vdev->config.tx_steering_type = 0;
3865 break;
3866 case TX_MULTIQ_STEERING:
3867 vxge_debug_init(VXGE_TRACE,
3868 "%s: Tx multiqueue steering enabled",
3869 vdev->ndev->name);
3870 break;
3871 case TX_PORT_STEERING:
3872 vxge_debug_init(VXGE_TRACE,
3873 "%s: Tx port steering enabled",
3874 vdev->ndev->name);
3875 break;
3876 default:
3877 vxge_debug_init(VXGE_ERR,
3878 "%s: Unsupported tx steering type",
3879 vdev->ndev->name);
3880 vxge_debug_init(VXGE_TRACE,
3881 "%s: Tx steering disabled", vdev->ndev->name);
3882 vdev->config.tx_steering_type = 0;
3883 }
3884
3885 if (vdev->config.gro_enable) {
3886 vxge_debug_init(VXGE_ERR,
3887 "%s: Generic receive offload enabled",
3888 vdev->ndev->name);
3889 } else
3890 vxge_debug_init(VXGE_TRACE,
3891 "%s: Generic receive offload disabled",
3892 vdev->ndev->name);
3893
3894 if (vdev->config.addr_learn_en)
3895 vxge_debug_init(VXGE_TRACE,
3896 "%s: MAC Address learning enabled", vdev->ndev->name);
3897
3898 vxge_debug_init(VXGE_TRACE,
3899 "%s: Rx doorbell mode enabled", vdev->ndev->name);
3900
3901 for (i = 0; i < VXGE_HW_MAX_VIRTUAL_PATHS; i++) {
3902 if (!vxge_bVALn(vpath_mask, i, 1))
3903 continue;
3904 vxge_debug_ll_config(VXGE_TRACE,
3905 "%s: MTU size - %d", vdev->ndev->name,
3906 ((struct __vxge_hw_device *)(vdev->devh))->
3907 config.vp_config[i].mtu);
3908 vxge_debug_init(VXGE_TRACE,
3909 "%s: VLAN tag stripping %s", vdev->ndev->name,
3910 ((struct __vxge_hw_device *)(vdev->devh))->
3911 config.vp_config[i].rpa_strip_vlan_tag
3912 ? "Enabled" : "Disabled");
3913 vxge_debug_init(VXGE_TRACE,
3914 "%s: Ring blocks : %d", vdev->ndev->name,
3915 ((struct __vxge_hw_device *)(vdev->devh))->
3916 config.vp_config[i].ring.ring_blocks);
3917 vxge_debug_init(VXGE_TRACE,
3918 "%s: Fifo blocks : %d", vdev->ndev->name,
3919 ((struct __vxge_hw_device *)(vdev->devh))->
3920 config.vp_config[i].fifo.fifo_blocks);
3921 vxge_debug_ll_config(VXGE_TRACE,
3922 "%s: Max frags : %d", vdev->ndev->name,
3923 ((struct __vxge_hw_device *)(vdev->devh))->
3924 config.vp_config[i].fifo.max_frags);
3925 break;
3926 }
3927}
3928
3929#ifdef CONFIG_PM
3930/**
3931 * vxge_pm_suspend - vxge power management suspend entry point
3932 *
3933 */
3934static int vxge_pm_suspend(struct pci_dev *pdev, pm_message_t state)
3935{
3936 return -ENOSYS;
3937}
3938/**
3939 * vxge_pm_resume - vxge power management resume entry point
3940 *
3941 */
3942static int vxge_pm_resume(struct pci_dev *pdev)
3943{
3944 return -ENOSYS;
3945}
3946
3947#endif
3948
3949/**
3950 * vxge_io_error_detected - called when PCI error is detected
3951 * @pdev: Pointer to PCI device
3952 * @state: The current pci connection state
3953 *
3954 * This function is called after a PCI bus error affecting
3955 * this device has been detected.
3956 */
3957static pci_ers_result_t vxge_io_error_detected(struct pci_dev *pdev,
3958 pci_channel_state_t state)
3959{
3960 struct __vxge_hw_device *hldev =
3961 (struct __vxge_hw_device *) pci_get_drvdata(pdev);
3962 struct net_device *netdev = hldev->ndev;
3963
3964 netif_device_detach(netdev);
3965
e33b992d
DN		 3966 if (state == pci_channel_io_perm_failure)
3967 return PCI_ERS_RESULT_DISCONNECT;
3968
703da5a1
RV		 3969 if (netif_running(netdev)) {
3970 /* Bring down the card, while avoiding PCI I/O */
3971 do_vxge_close(netdev, 0);
3972 }
3973
3974 pci_disable_device(pdev);
3975
3976 return PCI_ERS_RESULT_NEED_RESET;
3977}
3978
3979/**
3980 * vxge_io_slot_reset - called after the pci bus has been reset.
3981 * @pdev: Pointer to PCI device
3982 *
3983 * Restart the card from scratch, as if from a cold-boot.
3984 * At this point, the card has exprienced a hard reset,
3985 * followed by fixups by BIOS, and has its config space
3986 * set up identically to what it was at cold boot.
3987 */
3988static pci_ers_result_t vxge_io_slot_reset(struct pci_dev *pdev)
3989{
3990 struct __vxge_hw_device *hldev =
3991 (struct __vxge_hw_device *) pci_get_drvdata(pdev);
3992 struct net_device *netdev = hldev->ndev;
3993
3994 struct vxgedev *vdev = netdev_priv(netdev);
3995
3996 if (pci_enable_device(pdev)) {
75f5e1c6 3997 netdev_err(netdev, "Cannot re-enable device after reset\n");
703da5a1
RV		 3998 return PCI_ERS_RESULT_DISCONNECT;
3999 }
4000
4001 pci_set_master(pdev);
4002 vxge_reset(vdev);
4003
4004 return PCI_ERS_RESULT_RECOVERED;
4005}
4006
4007/**
4008 * vxge_io_resume - called when traffic can start flowing again.
4009 * @pdev: Pointer to PCI device
4010 *
4011 * This callback is called when the error recovery driver tells
4012 * us that its OK to resume normal operation.
4013 */
4014static void vxge_io_resume(struct pci_dev *pdev)
4015{
4016 struct __vxge_hw_device *hldev =
4017 (struct __vxge_hw_device *) pci_get_drvdata(pdev);
4018 struct net_device *netdev = hldev->ndev;
4019
4020 if (netif_running(netdev)) {
4021 if (vxge_open(netdev)) {
75f5e1c6
JP		 4022 netdev_err(netdev,
4023 "Can't bring device back up after reset\n");
703da5a1
RV		 4024 return;
4025 }
4026 }
4027
4028 netif_device_attach(netdev);
4029}
4030
cb27ec60
SH		 4031static inline u32 vxge_get_num_vfs(u64 function_mode)
4032{
4033 u32 num_functions = 0;
4034
4035 switch (function_mode) {
4036 case VXGE_HW_FUNCTION_MODE_MULTI_FUNCTION:
4037 case VXGE_HW_FUNCTION_MODE_SRIOV_8:
4038 num_functions = 8;
4039 break;
4040 case VXGE_HW_FUNCTION_MODE_SINGLE_FUNCTION:
4041 num_functions = 1;
4042 break;
4043 case VXGE_HW_FUNCTION_MODE_SRIOV:
4044 case VXGE_HW_FUNCTION_MODE_MRIOV:
4045 case VXGE_HW_FUNCTION_MODE_MULTI_FUNCTION_17:
4046 num_functions = 17;
4047 break;
4048 case VXGE_HW_FUNCTION_MODE_SRIOV_4:
4049 num_functions = 4;
4050 break;
4051 case VXGE_HW_FUNCTION_MODE_MULTI_FUNCTION_2:
4052 num_functions = 2;
4053 break;
4054 case VXGE_HW_FUNCTION_MODE_MRIOV_8:
4055 num_functions = 8; /* TODO */
4056 break;
4057 }
4058 return num_functions;
4059}
4060
e8ac1756
JM		 4061int vxge_fw_upgrade(struct vxgedev *vdev, char *fw_name, int override)
4062{
4063 struct __vxge_hw_device *hldev = vdev->devh;
4064 u32 maj, min, bld, cmaj, cmin, cbld;
4065 enum vxge_hw_status status;
4066 const struct firmware *fw;
4067 int ret;
4068
4069 ret = request_firmware(&fw, fw_name, &vdev->pdev->dev);
4070 if (ret) {
4071 vxge_debug_init(VXGE_ERR, "%s: Firmware file '%s' not found",
4072 VXGE_DRIVER_NAME, fw_name);
4073 goto out;
4074 }
4075
4076 /* Load the new firmware onto the adapter */
4077 status = vxge_update_fw_image(hldev, fw->data, fw->size);
4078 if (status != VXGE_HW_OK) {
4079 vxge_debug_init(VXGE_ERR,
4080 "%s: FW image download to adapter failed '%s'.",
4081 VXGE_DRIVER_NAME, fw_name);
4082 ret = -EIO;
4083 goto out;
4084 }
4085
4086 /* Read the version of the new firmware */
4087 status = vxge_hw_upgrade_read_version(hldev, &maj, &min, &bld);
4088 if (status != VXGE_HW_OK) {
4089 vxge_debug_init(VXGE_ERR,
4090 "%s: Upgrade read version failed '%s'.",
4091 VXGE_DRIVER_NAME, fw_name);
4092 ret = -EIO;
4093 goto out;
4094 }
4095
4096 cmaj = vdev->config.device_hw_info.fw_version.major;
4097 cmin = vdev->config.device_hw_info.fw_version.minor;
4098 cbld = vdev->config.device_hw_info.fw_version.build;
4099 /* It's possible the version in /lib/firmware is not the latest version.
4100 * If so, we could get into a loop of trying to upgrade to the latest
4101 * and flashing the older version.
4102 */
4103 if (VXGE_FW_VER(maj, min, bld) == VXGE_FW_VER(cmaj, cmin, cbld) &&
4104 !override) {
4105 ret = -EINVAL;
4106 goto out;
4107 }
4108
4109 printk(KERN_NOTICE "Upgrade to firmware version %d.%d.%d commencing\n",
4110 maj, min, bld);
4111
4112 /* Flash the adapter with the new firmware */
4113 status = vxge_hw_flash_fw(hldev);
4114 if (status != VXGE_HW_OK) {
4115 vxge_debug_init(VXGE_ERR, "%s: Upgrade commit failed '%s'.",
4116 VXGE_DRIVER_NAME, fw_name);
4117 ret = -EIO;
4118 goto out;
4119 }
4120
4121 printk(KERN_NOTICE "Upgrade of firmware successful! Adapter must be "
4122 "hard reset before using, thus requiring a system reboot or a "
4123 "hotplug event.\n");
4124
4125out:
4126 return ret;
4127}
4128
4129static int vxge_probe_fw_update(struct vxgedev *vdev)
4130{
4131 u32 maj, min, bld;
4132 int ret, gpxe = 0;
4133 char *fw_name;
4134
4135 maj = vdev->config.device_hw_info.fw_version.major;
4136 min = vdev->config.device_hw_info.fw_version.minor;
4137 bld = vdev->config.device_hw_info.fw_version.build;
4138
4139 if (VXGE_FW_VER(maj, min, bld) == VXGE_CERT_FW_VER)
4140 return 0;
4141
4142 /* Ignore the build number when determining if the current firmware is
4143 * "too new" to load the driver
4144 */
4145 if (VXGE_FW_VER(maj, min, 0) > VXGE_CERT_FW_VER) {
4146 vxge_debug_init(VXGE_ERR, "%s: Firmware newer than last known "
4147 "version, unable to load driver\n",
4148 VXGE_DRIVER_NAME);
4149 return -EINVAL;
4150 }
4151
4152 /* Firmware 1.4.4 and older cannot be upgraded, and is too ancient to
4153 * work with this driver.
4154 */
4155 if (VXGE_FW_VER(maj, min, bld) <= VXGE_FW_DEAD_VER) {
4156 vxge_debug_init(VXGE_ERR, "%s: Firmware %d.%d.%d cannot be "
4157 "upgraded\n", VXGE_DRIVER_NAME, maj, min, bld);
4158 return -EINVAL;
4159 }
4160
4161 /* If file not specified, determine gPXE or not */
4162 if (VXGE_FW_VER(maj, min, bld) >= VXGE_EPROM_FW_VER) {
4163 int i;
4164 for (i = 0; i < VXGE_HW_MAX_ROM_IMAGES; i++)
4165 if (vdev->devh->eprom_versions[i]) {
4166 gpxe = 1;
4167 break;
4168 }
4169 }
4170 if (gpxe)
4171 fw_name = "vxge/X3fw-pxe.ncf";
4172 else
4173 fw_name = "vxge/X3fw.ncf";
4174
4175 ret = vxge_fw_upgrade(vdev, fw_name, 0);
4176 /* -EINVAL and -ENOENT are not fatal errors for flashing firmware on
4177 * probe, so ignore them
4178 */
4179 if (ret != -EINVAL && ret != -ENOENT)
4180 return -EIO;
4181 else
4182 ret = 0;
4183
4184 if (VXGE_FW_VER(VXGE_CERT_FW_VER_MAJOR, VXGE_CERT_FW_VER_MINOR, 0) >
4185 VXGE_FW_VER(maj, min, 0)) {
4186 vxge_debug_init(VXGE_ERR, "%s: Firmware %d.%d.%d is too old to"
4187 " be used with this driver.\n"
4188 "Please get the latest version from "
4189 "ftp://ftp.s2io.com/pub/X3100-Drivers/FIRMWARE",
4190 VXGE_DRIVER_NAME, maj, min, bld);
4191 return -EINVAL;
4192 }
4193
4194 return ret;
4195}
4196
703da5a1
RV		 4197/**
4198 * vxge_probe
4199 * @pdev : structure containing the PCI related information of the device.
4200 * @pre: List of PCI devices supported by the driver listed in vxge_id_table.
4201 * Description:
4202 * This function is called when a new PCI device gets detected and initializes
4203 * it.
4204 * Return value:
4205 * returns 0 on success and negative on failure.
4206 *
4207 */
4208static int __devinit
4209vxge_probe(struct pci_dev *pdev, const struct pci_device_id *pre)
4210{
4211 struct __vxge_hw_device *hldev;
4212 enum vxge_hw_status status;
4213 int ret;
4214 int high_dma = 0;
4215 u64 vpath_mask = 0;
4216 struct vxgedev *vdev;
7dad171c 4217 struct vxge_config *ll_config = NULL;
703da5a1
RV		 4218 struct vxge_hw_device_config *device_config = NULL;
4219 struct vxge_hw_device_attr attr;
4220 int i, j, no_of_vpath = 0, max_vpath_supported = 0;
4221 u8 *macaddr;
4222 struct vxge_mac_addrs *entry;
4223 static int bus = -1, device = -1;
cb27ec60 4224 u32 host_type;
703da5a1 4225 u8 new_device = 0;
cb27ec60
SH		 4226 enum vxge_hw_status is_privileged;
4227 u32 function_mode;
4228 u32 num_vfs = 0;
703da5a1
RV		 4229
4230 vxge_debug_entryexit(VXGE_TRACE, "%s:%d", __func__, __LINE__);
4231 attr.pdev = pdev;
4232
cb27ec60
SH		 4233 /* In SRIOV-17 mode, functions of the same adapter
4234 * can be deployed on different buses */
4235 if ((!pdev->is_virtfn) && ((bus != pdev->bus->number) ||
4236 (device != PCI_SLOT(pdev->devfn))))
703da5a1
RV		 4237 new_device = 1;
4238
4239 bus = pdev->bus->number;
4240 device = PCI_SLOT(pdev->devfn);
4241
4242 if (new_device) {
4243 if (driver_config->config_dev_cnt &&
4244 (driver_config->config_dev_cnt !=
4245 driver_config->total_dev_cnt))
4246 vxge_debug_init(VXGE_ERR,
4247 "%s: Configured %d of %d devices",
4248 VXGE_DRIVER_NAME,
4249 driver_config->config_dev_cnt,
4250 driver_config->total_dev_cnt);
4251 driver_config->config_dev_cnt = 0;
4252 driver_config->total_dev_cnt = 0;
703da5a1 4253 }
9002397e
SH		 4254 /* Now making the CPU based no of vpath calculation
4255 * applicable for individual functions as well.
4256 */
4257 driver_config->g_no_cpus = 0;
657205bd
SH		 4258 driver_config->vpath_per_dev = max_config_vpath;
4259
703da5a1
RV		 4260 driver_config->total_dev_cnt++;
4261 if (++driver_config->config_dev_cnt > max_config_dev) {
4262 ret = 0;
4263 goto _exit0;
4264 }
4265
4266 device_config = kzalloc(sizeof(struct vxge_hw_device_config),
4267 GFP_KERNEL);
4268 if (!device_config) {
4269 ret = -ENOMEM;
4270 vxge_debug_init(VXGE_ERR,
4271 "device_config : malloc failed %s %d",
4272 __FILE__, __LINE__);
4273 goto _exit0;
4274 }
4275
7dad171c
PB		 4276 ll_config = kzalloc(sizeof(*ll_config), GFP_KERNEL);
4277 if (!ll_config) {
4278 ret = -ENOMEM;
4279 vxge_debug_init(VXGE_ERR,
4280 "ll_config : malloc failed %s %d",
4281 __FILE__, __LINE__);
4282 goto _exit0;
4283 }
4284 ll_config->tx_steering_type = TX_MULTIQ_STEERING;
4285 ll_config->intr_type = MSI_X;
4286 ll_config->napi_weight = NEW_NAPI_WEIGHT;
4287 ll_config->rth_steering = RTH_STEERING;
703da5a1
RV		 4288
4289 /* get the default configuration parameters */
4290 vxge_hw_device_config_default_get(device_config);
4291
4292 /* initialize configuration parameters */
7dad171c 4293 vxge_device_config_init(device_config, &ll_config->intr_type);
703da5a1
RV		 4294
4295 ret = pci_enable_device(pdev);
4296 if (ret) {
4297 vxge_debug_init(VXGE_ERR,
4298 "%s : can not enable PCI device", __func__);
4299 goto _exit0;
4300 }
4301
b3837cec 4302 if (!pci_set_dma_mask(pdev, DMA_BIT_MASK(64))) {
703da5a1
RV		 4303 vxge_debug_ll_config(VXGE_TRACE,
4304 "%s : using 64bit DMA", __func__);
4305
4306 high_dma = 1;
4307
4308 if (pci_set_consistent_dma_mask(pdev,
b3837cec 4309 DMA_BIT_MASK(64))) {
703da5a1
RV		 4310 vxge_debug_init(VXGE_ERR,
4311 "%s : unable to obtain 64bit DMA for "
4312 "consistent allocations", __func__);
4313 ret = -ENOMEM;
4314 goto _exit1;
4315 }
b3837cec 4316 } else if (!pci_set_dma_mask(pdev, DMA_BIT_MASK(32))) {
703da5a1
RV		 4317 vxge_debug_ll_config(VXGE_TRACE,
4318 "%s : using 32bit DMA", __func__);
4319 } else {
4320 ret = -ENOMEM;
4321 goto _exit1;
4322 }
4323
4324 if (pci_request_regions(pdev, VXGE_DRIVER_NAME)) {
4325 vxge_debug_init(VXGE_ERR,
4326 "%s : request regions failed", __func__);
4327 ret = -ENODEV;
4328 goto _exit1;
4329 }
4330
4331 pci_set_master(pdev);
4332
4333 attr.bar0 = pci_ioremap_bar(pdev, 0);
4334 if (!attr.bar0) {
4335 vxge_debug_init(VXGE_ERR,
4336 "%s : cannot remap io memory bar0", __func__);
4337 ret = -ENODEV;
4338 goto _exit2;
4339 }
4340 vxge_debug_ll_config(VXGE_TRACE,
4341 "pci ioremap bar0: %p:0x%llx",
4342 attr.bar0,
4343 (unsigned long long)pci_resource_start(pdev, 0));
4344
703da5a1 4345 status = vxge_hw_device_hw_info_get(attr.bar0,
7dad171c 4346 &ll_config->device_hw_info);
703da5a1
RV		 4347 if (status != VXGE_HW_OK) {
4348 vxge_debug_init(VXGE_ERR,
4349 "%s: Reading of hardware info failed."
4350 "Please try upgrading the firmware.", VXGE_DRIVER_NAME);
4351 ret = -EINVAL;
7975d1ee 4352 goto _exit3;
703da5a1
RV		 4353 }
4354
7dad171c 4355 vpath_mask = ll_config->device_hw_info.vpath_mask;
703da5a1
RV		 4356 if (vpath_mask == 0) {
4357 vxge_debug_ll_config(VXGE_TRACE,
4358 "%s: No vpaths available in device", VXGE_DRIVER_NAME);
4359 ret = -EINVAL;
7975d1ee 4360 goto _exit3;
703da5a1
RV		 4361 }
4362
4363 vxge_debug_ll_config(VXGE_TRACE,
4364 "%s:%d Vpath mask = %llx", __func__, __LINE__,
4365 (unsigned long long)vpath_mask);
4366
7dad171c
PB		 4367 function_mode = ll_config->device_hw_info.function_mode;
4368 host_type = ll_config->device_hw_info.host_type;
cb27ec60 4369 is_privileged = __vxge_hw_device_is_privilaged(host_type,
7dad171c 4370 ll_config->device_hw_info.func_id);
cb27ec60 4371
703da5a1
RV		 4372 /* Check how many vpaths are available */
4373 for (i = 0; i < VXGE_HW_MAX_VIRTUAL_PATHS; i++) {
4374 if (!((vpath_mask) & vxge_mBIT(i)))
4375 continue;
4376 max_vpath_supported++;
4377 }
4378
cb27ec60
SH		 4379 if (new_device)
4380 num_vfs = vxge_get_num_vfs(function_mode) - 1;
4381
5dbc9011 4382 /* Enable SRIOV mode, if firmware has SRIOV support and if it is a PF */
cb27ec60 4383 if (is_sriov(function_mode) && (max_config_dev > 1) &&
7dad171c 4384 (ll_config->intr_type != INTA) &&
cb27ec60
SH		 4385 (is_privileged == VXGE_HW_OK)) {
4386 ret = pci_enable_sriov(pdev, ((max_config_dev - 1) < num_vfs)
4387 ? (max_config_dev - 1) : num_vfs);
4388 if (ret)
4389 vxge_debug_ll_config(VXGE_ERR,
4390 "Failed in enabling SRIOV mode: %d\n", ret);
5dbc9011
SS		 4391 }
4392
703da5a1
RV		 4393 /*
4394 * Configure vpaths and get driver configured number of vpaths
4395 * which is less than or equal to the maximum vpaths per function.
4396 */
7dad171c 4397 no_of_vpath = vxge_config_vpaths(device_config, vpath_mask, ll_config);
703da5a1
RV		 4398 if (!no_of_vpath) {
4399 vxge_debug_ll_config(VXGE_ERR,
4400 "%s: No more vpaths to configure", VXGE_DRIVER_NAME);
4401 ret = 0;
7975d1ee 4402 goto _exit3;
703da5a1
RV		 4403 }
4404
4405 /* Setting driver callbacks */
4406 attr.uld_callbacks.link_up = vxge_callback_link_up;
4407 attr.uld_callbacks.link_down = vxge_callback_link_down;
4408 attr.uld_callbacks.crit_err = vxge_callback_crit_err;
4409
4410 status = vxge_hw_device_initialize(&hldev, &attr, device_config);
4411 if (status != VXGE_HW_OK) {
4412 vxge_debug_init(VXGE_ERR,
4413 "Failed to initialize device (%d)", status);
4414 ret = -EINVAL;
7975d1ee 4415 goto _exit3;
703da5a1
RV		 4416 }
4417
e8ac1756
JM		 4418 if (VXGE_FW_VER(ll_config->device_hw_info.fw_version.major,
4419 ll_config->device_hw_info.fw_version.minor,
4420 ll_config->device_hw_info.fw_version.build) >=
4421 VXGE_EPROM_FW_VER) {
4422 struct eprom_image img[VXGE_HW_MAX_ROM_IMAGES];
4423
4424 status = vxge_hw_vpath_eprom_img_ver_get(hldev, img);
4425 if (status != VXGE_HW_OK) {
4426 vxge_debug_init(VXGE_ERR, "%s: Reading of EPROM failed",
4427 VXGE_DRIVER_NAME);
4428 /* This is a non-fatal error, continue */
4429 }
4430
4431 for (i = 0; i < VXGE_HW_MAX_ROM_IMAGES; i++) {
4432 hldev->eprom_versions[i] = img[i].version;
4433 if (!img[i].is_valid)
4434 break;
4435 vxge_debug_init(VXGE_TRACE, "%s: EPROM %d, version "
4436 "%d.%d.%d.%d\n", VXGE_DRIVER_NAME, i,
4437 VXGE_EPROM_IMG_MAJOR(img[i].version),
4438 VXGE_EPROM_IMG_MINOR(img[i].version),
4439 VXGE_EPROM_IMG_FIX(img[i].version),
4440 VXGE_EPROM_IMG_BUILD(img[i].version));
4441 }
4442 }
4443
fa41fd10 4444 /* if FCS stripping is not disabled in MAC fail driver load */
b81b3733
JM		 4445 status = vxge_hw_vpath_strip_fcs_check(hldev, vpath_mask);
4446 if (status != VXGE_HW_OK) {
4447 vxge_debug_init(VXGE_ERR, "%s: FCS stripping is enabled in MAC"
4448 " failing driver load", VXGE_DRIVER_NAME);
fa41fd10
SH		 4449 ret = -EINVAL;
4450 goto _exit4;
4451 }
4452
703da5a1
RV		 4453 vxge_hw_device_debug_set(hldev, VXGE_ERR, VXGE_COMPONENT_LL);
4454
4455 /* set private device info */
4456 pci_set_drvdata(pdev, hldev);
4457
7dad171c
PB		 4458 ll_config->gro_enable = VXGE_GRO_ALWAYS_AGGREGATE;
4459 ll_config->fifo_indicate_max_pkts = VXGE_FIFO_INDICATE_MAX_PKTS;
4460 ll_config->addr_learn_en = addr_learn_en;
4461 ll_config->rth_algorithm = RTH_ALG_JENKINS;
47f01db4
JM		 4462 ll_config->rth_hash_type_tcpipv4 = 1;
4463 ll_config->rth_hash_type_ipv4 = 0;
4464 ll_config->rth_hash_type_tcpipv6 = 0;
4465 ll_config->rth_hash_type_ipv6 = 0;
4466 ll_config->rth_hash_type_tcpipv6ex = 0;
4467 ll_config->rth_hash_type_ipv6ex = 0;
7dad171c
PB		 4468 ll_config->rth_bkt_sz = RTH_BUCKET_SIZE;
4469 ll_config->tx_pause_enable = VXGE_PAUSE_CTRL_ENABLE;
4470 ll_config->rx_pause_enable = VXGE_PAUSE_CTRL_ENABLE;
4471
e8ac1756
JM		 4472 ret = vxge_device_register(hldev, ll_config, high_dma, no_of_vpath,
4473 &vdev);
4474 if (ret) {
703da5a1 4475 ret = -EINVAL;
7975d1ee 4476 goto _exit4;
703da5a1
RV		 4477 }
4478
e8ac1756
JM		 4479 ret = vxge_probe_fw_update(vdev);
4480 if (ret)
4481 goto _exit5;
4482
703da5a1
RV		 4483 vxge_hw_device_debug_set(hldev, VXGE_TRACE, VXGE_COMPONENT_LL);
4484 VXGE_COPY_DEBUG_INFO_TO_LL(vdev, vxge_hw_device_error_level_get(hldev),
4485 vxge_hw_device_trace_level_get(hldev));
4486
4487 /* set private HW device info */
703da5a1
RV		 4488 vdev->mtu = VXGE_HW_DEFAULT_MTU;
4489 vdev->bar0 = attr.bar0;
703da5a1
RV		 4490 vdev->max_vpath_supported = max_vpath_supported;
4491 vdev->no_of_vpath = no_of_vpath;
4492
4493 /* Virtual Path count */
4494 for (i = 0, j = 0; i < VXGE_HW_MAX_VIRTUAL_PATHS; i++) {
4495 if (!vxge_bVALn(vpath_mask, i, 1))
4496 continue;
4497 if (j >= vdev->no_of_vpath)
4498 break;
4499
4500 vdev->vpaths[j].is_configured = 1;
4501 vdev->vpaths[j].device_id = i;
703da5a1
RV		 4502 vdev->vpaths[j].ring.driver_id = j;
4503 vdev->vpaths[j].vdev = vdev;
4504 vdev->vpaths[j].max_mac_addr_cnt = max_mac_vpath;
4505 memcpy((u8 *)vdev->vpaths[j].macaddr,
7dad171c 4506 ll_config->device_hw_info.mac_addrs[i],
703da5a1
RV		 4507 ETH_ALEN);
4508
4509 /* Initialize the mac address list header */
4510 INIT_LIST_HEAD(&vdev->vpaths[j].mac_addr_list);
4511
4512 vdev->vpaths[j].mac_addr_cnt = 0;
4513 vdev->vpaths[j].mcast_addr_cnt = 0;
4514 j++;
4515 }
4516 vdev->exec_mode = VXGE_EXEC_MODE_DISABLE;
4517 vdev->max_config_port = max_config_port;
4518
4519 vdev->vlan_tag_strip = vlan_tag_strip;
4520
4521 /* map the hashing selector table to the configured vpaths */
4522 for (i = 0; i < vdev->no_of_vpath; i++)
4523 vdev->vpath_selector[i] = vpath_selector[i];
4524
4525 macaddr = (u8 *)vdev->vpaths[0].macaddr;
4526
7dad171c
PB		 4527 ll_config->device_hw_info.serial_number[VXGE_HW_INFO_LEN - 1] = '\0';
4528 ll_config->device_hw_info.product_desc[VXGE_HW_INFO_LEN - 1] = '\0';
4529 ll_config->device_hw_info.part_number[VXGE_HW_INFO_LEN - 1] = '\0';
703da5a1
RV		 4530
4531 vxge_debug_init(VXGE_TRACE, "%s: SERIAL NUMBER: %s",
7dad171c 4532 vdev->ndev->name, ll_config->device_hw_info.serial_number);
703da5a1
RV		 4533
4534 vxge_debug_init(VXGE_TRACE, "%s: PART NUMBER: %s",
7dad171c 4535 vdev->ndev->name, ll_config->device_hw_info.part_number);
703da5a1
RV		 4536
4537 vxge_debug_init(VXGE_TRACE, "%s: Neterion %s Server Adapter",
7dad171c 4538 vdev->ndev->name, ll_config->device_hw_info.product_desc);
703da5a1 4539
bf54e736 4540 vxge_debug_init(VXGE_TRACE, "%s: MAC ADDR: %pM",
4541 vdev->ndev->name, macaddr);
703da5a1
RV		 4542
4543 vxge_debug_init(VXGE_TRACE, "%s: Link Width x%d",
4544 vdev->ndev->name, vxge_hw_device_link_width_get(hldev));
4545
4546 vxge_debug_init(VXGE_TRACE,
4547 "%s: Firmware version : %s Date : %s", vdev->ndev->name,
7dad171c
PB		 4548 ll_config->device_hw_info.fw_version.version,
4549 ll_config->device_hw_info.fw_date.date);
703da5a1 4550
0a25bdc6 4551 if (new_device) {
7dad171c 4552 switch (ll_config->device_hw_info.function_mode) {
0a25bdc6
SH		 4553 case VXGE_HW_FUNCTION_MODE_SINGLE_FUNCTION:
4554 vxge_debug_init(VXGE_TRACE,
4555 "%s: Single Function Mode Enabled", vdev->ndev->name);
4556 break;
4557 case VXGE_HW_FUNCTION_MODE_MULTI_FUNCTION:
4558 vxge_debug_init(VXGE_TRACE,
4559 "%s: Multi Function Mode Enabled", vdev->ndev->name);
4560 break;
4561 case VXGE_HW_FUNCTION_MODE_SRIOV:
4562 vxge_debug_init(VXGE_TRACE,
4563 "%s: Single Root IOV Mode Enabled", vdev->ndev->name);
4564 break;
4565 case VXGE_HW_FUNCTION_MODE_MRIOV:
4566 vxge_debug_init(VXGE_TRACE,
4567 "%s: Multi Root IOV Mode Enabled", vdev->ndev->name);
4568 break;
4569 }
4570 }
4571
703da5a1
RV		 4572 vxge_print_parm(vdev, vpath_mask);
4573
4574 /* Store the fw version for ethttool option */
7dad171c 4575 strcpy(vdev->fw_version, ll_config->device_hw_info.fw_version.version);
703da5a1
RV		 4576 memcpy(vdev->ndev->dev_addr, (u8 *)vdev->vpaths[0].macaddr, ETH_ALEN);
4577 memcpy(vdev->ndev->perm_addr, vdev->ndev->dev_addr, ETH_ALEN);
4578
4579 /* Copy the station mac address to the list */
4580 for (i = 0; i < vdev->no_of_vpath; i++) {
4581 entry = (struct vxge_mac_addrs *)
4582 kzalloc(sizeof(struct vxge_mac_addrs),
4583 GFP_KERNEL);
4584 if (NULL == entry) {
4585 vxge_debug_init(VXGE_ERR,
4586 "%s: mac_addr_list : memory allocation failed",
4587 vdev->ndev->name);
4588 ret = -EPERM;
e8ac1756 4589 goto _exit6;
703da5a1
RV		 4590 }
4591 macaddr = (u8 *)&entry->macaddr;
4592 memcpy(macaddr, vdev->ndev->dev_addr, ETH_ALEN);
4593 list_add(&entry->item, &vdev->vpaths[i].mac_addr_list);
4594 vdev->vpaths[i].mac_addr_cnt = 1;
4595 }
4596
914d0d71 4597 kfree(device_config);
eb5f10c2
SH		 4598
4599 /*
4600 * INTA is shared in multi-function mode. This is unlike the INTA
4601 * implementation in MR mode, where each VH has its own INTA message.
4602 * - INTA is masked (disabled) as long as at least one function sets
4603 * its TITAN_MASK_ALL_INT.ALARM bit.
4604 * - INTA is unmasked (enabled) when all enabled functions have cleared
4605 * their own TITAN_MASK_ALL_INT.ALARM bit.
4606 * The TITAN_MASK_ALL_INT ALARM & TRAFFIC bits are cleared on power up.
4607 * Though this driver leaves the top level interrupts unmasked while
4608 * leaving the required module interrupt bits masked on exit, there
4609 * could be a rougue driver around that does not follow this procedure
4610 * resulting in a failure to generate interrupts. The following code is
4611 * present to prevent such a failure.
4612 */
4613
7dad171c 4614 if (ll_config->device_hw_info.function_mode ==
eb5f10c2
SH		 4615 VXGE_HW_FUNCTION_MODE_MULTI_FUNCTION)
4616 if (vdev->config.intr_type == INTA)
4617 vxge_hw_device_unmask_all(hldev);
4618
703da5a1
RV		 4619 vxge_debug_entryexit(VXGE_TRACE, "%s: %s:%d Exiting...",
4620 vdev->ndev->name, __func__, __LINE__);
4621
4622 vxge_hw_device_debug_set(hldev, VXGE_ERR, VXGE_COMPONENT_LL);
4623 VXGE_COPY_DEBUG_INFO_TO_LL(vdev, vxge_hw_device_error_level_get(hldev),
4624 vxge_hw_device_trace_level_get(hldev));
4625
7dad171c 4626 kfree(ll_config);
703da5a1
RV		 4627 return 0;
4628
e8ac1756 4629_exit6:
703da5a1
RV		 4630 for (i = 0; i < vdev->no_of_vpath; i++)
4631 vxge_free_mac_add_list(&vdev->vpaths[i]);
e8ac1756 4632_exit5:
703da5a1 4633 vxge_device_unregister(hldev);
7975d1ee 4634_exit4:
5dbc9011 4635 pci_disable_sriov(pdev);
703da5a1 4636 vxge_hw_device_terminate(hldev);
703da5a1
RV		 4637_exit3:
4638 iounmap(attr.bar0);
4639_exit2:
4640 pci_release_regions(pdev);
4641_exit1:
4642 pci_disable_device(pdev);
4643_exit0:
7dad171c 4644 kfree(ll_config);
703da5a1
RV		 4645 kfree(device_config);
4646 driver_config->config_dev_cnt--;
4647 pci_set_drvdata(pdev, NULL);
4648 return ret;
4649}
4650
4651/**
4652 * vxge_rem_nic - Free the PCI device
4653 * @pdev: structure containing the PCI related information of the device.
4654 * Description: This function is called by the Pci subsystem to release a
4655 * PCI device and free up all resource held up by the device.
4656 */
4657static void __devexit
4658vxge_remove(struct pci_dev *pdev)
4659{
4660 struct __vxge_hw_device *hldev;
4661 struct vxgedev *vdev = NULL;
4662 struct net_device *dev;
4663 int i = 0;
4664#if ((VXGE_DEBUG_INIT & VXGE_DEBUG_MASK) || \
4665 (VXGE_DEBUG_ENTRYEXIT & VXGE_DEBUG_MASK))
4666 u32 level_trace;
4667#endif
4668
4669 hldev = (struct __vxge_hw_device *) pci_get_drvdata(pdev);
4670
4671 if (hldev == NULL)
4672 return;
4673 dev = hldev->ndev;
4674 vdev = netdev_priv(dev);
4675
4676#if ((VXGE_DEBUG_INIT & VXGE_DEBUG_MASK) || \
4677 (VXGE_DEBUG_ENTRYEXIT & VXGE_DEBUG_MASK))
4678 level_trace = vdev->level_trace;
4679#endif
4680 vxge_debug_entryexit(level_trace,
4681 "%s:%d", __func__, __LINE__);
4682
4683 vxge_debug_init(level_trace,
4684 "%s : removing PCI device...", __func__);
4685 vxge_device_unregister(hldev);
4686
4687 for (i = 0; i < vdev->no_of_vpath; i++) {
4688 vxge_free_mac_add_list(&vdev->vpaths[i]);
4689 vdev->vpaths[i].mcast_addr_cnt = 0;
4690 vdev->vpaths[i].mac_addr_cnt = 0;
4691 }
4692
4693 kfree(vdev->vpaths);
4694
4695 iounmap(vdev->bar0);
703da5a1 4696
5dbc9011
SS		 4697 pci_disable_sriov(pdev);
4698
703da5a1
RV		 4699 /* we are safe to free it now */
4700 free_netdev(dev);
4701
4702 vxge_debug_init(level_trace,
4703 "%s:%d Device unregistered", __func__, __LINE__);
4704
4705 vxge_hw_device_terminate(hldev);
4706
4707 pci_disable_device(pdev);
4708 pci_release_regions(pdev);
4709 pci_set_drvdata(pdev, NULL);
4710 vxge_debug_entryexit(level_trace,
4711 "%s:%d Exiting...", __func__, __LINE__);
4712}
4713
4714static struct pci_error_handlers vxge_err_handler = {
4715 .error_detected = vxge_io_error_detected,
4716 .slot_reset = vxge_io_slot_reset,
4717 .resume = vxge_io_resume,
4718};
4719
4720static struct pci_driver vxge_driver = {
4721 .name = VXGE_DRIVER_NAME,
4722 .id_table = vxge_id_table,
4723 .probe = vxge_probe,
4724 .remove = __devexit_p(vxge_remove),
4725#ifdef CONFIG_PM
4726 .suspend = vxge_pm_suspend,
4727 .resume = vxge_pm_resume,
4728#endif
4729 .err_handler = &vxge_err_handler,
4730};
4731
4732static int __init
4733vxge_starter(void)
4734{
4735 int ret = 0;
703da5a1 4736
75f5e1c6
JP		 4737 pr_info("Copyright(c) 2002-2010 Exar Corp.\n");
4738 pr_info("Driver version: %s\n", DRV_VERSION);
703da5a1
RV		 4739
4740 verify_bandwidth();
4741
4742 driver_config = kzalloc(sizeof(struct vxge_drv_config), GFP_KERNEL);
4743 if (!driver_config)
4744 return -ENOMEM;
4745
4746 ret = pci_register_driver(&vxge_driver);
4747
4748 if (driver_config->config_dev_cnt &&
4749 (driver_config->config_dev_cnt != driver_config->total_dev_cnt))
4750 vxge_debug_init(VXGE_ERR,
4751 "%s: Configured %d of %d devices",
4752 VXGE_DRIVER_NAME, driver_config->config_dev_cnt,
4753 driver_config->total_dev_cnt);
4754
4755 if (ret)
4756 kfree(driver_config);
4757
4758 return ret;
4759}
4760
4761static void __exit
4762vxge_closer(void)
4763{
4764 pci_unregister_driver(&vxge_driver);
4765 kfree(driver_config);
4766}
4767module_init(vxge_starter);
4768module_exit(vxge_closer);
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