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drivers/net/vxge/vxge-main.c: Remove unnecessary casts of pci_get_drvdata
[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;
5f54cebb 156 struct vxgedev *vdev = netdev_priv(dev);
703da5a1
RV		 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;
5f54cebb 180 struct vxgedev *vdev = netdev_priv(dev);
703da5a1
RV		 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
d8ee7071 691 hldev = pci_get_drvdata(vdev->pdev);
703da5a1
RV		 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
5f54cebb 790 vdev = netdev_priv(dev);
703da5a1
RV		 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
5f54cebb 1055 vdev = netdev_priv(dev);
703da5a1
RV		 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) {
2c91308f 1115 mac_entry = (struct vxge_mac_addrs *)entry;
703da5a1
RV		 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) {
2c91308f 1158 mac_entry = (struct vxge_mac_addrs *)entry;
703da5a1
RV		 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;
2c91308f 1205 struct __vxge_hw_device *hldev;
703da5a1
RV		 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
5f54cebb 1212 vdev = netdev_priv(dev);
703da5a1
RV		 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
d8ee7071 1316 hldev = pci_get_drvdata(vdev->pdev);
4d2a5b40
JM		 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
d8ee7071 1635 struct __vxge_hw_device *hldev = pci_get_drvdata(vdev->pdev);
703da5a1
RV		 1636
1637 for (i = 0; i < vdev->no_of_vpath; i++) {
1638 ring = &vdev->vpaths[i].ring;
1639 ring->budget = budget;
1640 vxge_hw_vpath_poll_rx(ring->handle);
1641 pkts_processed += ring->pkts_processed;
1642 budget -= ring->pkts_processed;
1643 if (budget <= 0)
1644 break;
1645 }
1646
1647 VXGE_COMPLETE_ALL_TX(vdev);
1648
1649 if (pkts_processed < budget_org) {
1650 napi_complete(napi);
1651 /* Re enable the Rx interrupts for the ring */
1652 vxge_hw_device_unmask_all(hldev);
1653 vxge_hw_device_flush_io(hldev);
1654 }
1655
1656 return pkts_processed;
1657}
1658
1659#ifdef CONFIG_NET_POLL_CONTROLLER
1660/**
1661 * vxge_netpoll - netpoll event handler entry point
1662 * @dev : pointer to the device structure.
1663 * Description:
1664 * This function will be called by upper layer to check for events on the
1665 * interface in situations where interrupts are disabled. It is used for
1666 * specific in-kernel networking tasks, such as remote consoles and kernel
1667 * debugging over the network (example netdump in RedHat).
1668 */
1669static void vxge_netpoll(struct net_device *dev)
1670{
2c91308f 1671 struct __vxge_hw_device *hldev;
703da5a1
RV		 1672 struct vxgedev *vdev;
1673
5f54cebb 1674 vdev = netdev_priv(dev);
d8ee7071 1675 hldev = pci_get_drvdata(vdev->pdev);
703da5a1
RV		 1676
1677 vxge_debug_entryexit(VXGE_TRACE, "%s:%d", __func__, __LINE__);
1678
1679 if (pci_channel_offline(vdev->pdev))
1680 return;
1681
1682 disable_irq(dev->irq);
1683 vxge_hw_device_clear_tx_rx(hldev);
1684
1685 vxge_hw_device_clear_tx_rx(hldev);
1686 VXGE_COMPLETE_ALL_RX(vdev);
1687 VXGE_COMPLETE_ALL_TX(vdev);
1688
1689 enable_irq(dev->irq);
1690
1691 vxge_debug_entryexit(VXGE_TRACE,
1692 "%s:%d Exiting...", __func__, __LINE__);
703da5a1
RV		 1693}
1694#endif
1695
1696/* RTH configuration */
1697static enum vxge_hw_status vxge_rth_configure(struct vxgedev *vdev)
1698{
1699 enum vxge_hw_status status = VXGE_HW_OK;
1700 struct vxge_hw_rth_hash_types hash_types;
1701 u8 itable[256] = {0}; /* indirection table */
1702 u8 mtable[256] = {0}; /* CPU to vpath mapping */
1703 int index;
1704
1705 /*
1706 * Filling
1707 * - itable with bucket numbers
1708 * - mtable with bucket-to-vpath mapping
1709 */
1710 for (index = 0; index < (1 << vdev->config.rth_bkt_sz); index++) {
1711 itable[index] = index;
1712 mtable[index] = index % vdev->no_of_vpath;
1713 }
1714
703da5a1
RV		 1715 /* set indirection table, bucket-to-vpath mapping */
1716 status = vxge_hw_vpath_rts_rth_itable_set(vdev->vp_handles,
1717 vdev->no_of_vpath,
1718 mtable, itable,
1719 vdev->config.rth_bkt_sz);
1720 if (status != VXGE_HW_OK) {
1721 vxge_debug_init(VXGE_ERR,
1722 "RTH indirection table configuration failed "
1723 "for vpath:%d", vdev->vpaths[0].device_id);
1724 return status;
1725 }
1726
47f01db4
JM		 1727 /* Fill RTH hash types */
1728 hash_types.hash_type_tcpipv4_en = vdev->config.rth_hash_type_tcpipv4;
1729 hash_types.hash_type_ipv4_en = vdev->config.rth_hash_type_ipv4;
1730 hash_types.hash_type_tcpipv6_en = vdev->config.rth_hash_type_tcpipv6;
1731 hash_types.hash_type_ipv6_en = vdev->config.rth_hash_type_ipv6;
1732 hash_types.hash_type_tcpipv6ex_en =
1733 vdev->config.rth_hash_type_tcpipv6ex;
1734 hash_types.hash_type_ipv6ex_en = vdev->config.rth_hash_type_ipv6ex;
1735
703da5a1 1736 /*
47f01db4
JM		 1737 * Because the itable_set() method uses the active_table field
1738 * for the target virtual path the RTH config should be updated
1739 * for all VPATHs. The h/w only uses the lowest numbered VPATH
1740 * when steering frames.
1741 */
703da5a1
RV		 1742 for (index = 0; index < vdev->no_of_vpath; index++) {
1743 status = vxge_hw_vpath_rts_rth_set(
1744 vdev->vpaths[index].handle,
1745 vdev->config.rth_algorithm,
1746 &hash_types,
1747 vdev->config.rth_bkt_sz);
1748
1749 if (status != VXGE_HW_OK) {
1750 vxge_debug_init(VXGE_ERR,
1751 "RTH configuration failed for vpath:%d",
1752 vdev->vpaths[index].device_id);
1753 return status;
1754 }
1755 }
1756
1757 return status;
1758}
1759
42821a5b 1760static int vxge_mac_list_add(struct vxge_vpath *vpath, struct macInfo *mac)
703da5a1
RV		 1761{
1762 struct vxge_mac_addrs *new_mac_entry;
1763 u8 *mac_address = NULL;
1764
1765 if (vpath->mac_addr_cnt >= VXGE_MAX_LEARN_MAC_ADDR_CNT)
1766 return TRUE;
1767
1768 new_mac_entry = kzalloc(sizeof(struct vxge_mac_addrs), GFP_ATOMIC);
1769 if (!new_mac_entry) {
1770 vxge_debug_mem(VXGE_ERR,
1771 "%s: memory allocation failed",
1772 VXGE_DRIVER_NAME);
1773 return FALSE;
1774 }
1775
1776 list_add(&new_mac_entry->item, &vpath->mac_addr_list);
1777
1778 /* Copy the new mac address to the list */
1779 mac_address = (u8 *)&new_mac_entry->macaddr;
1780 memcpy(mac_address, mac->macaddr, ETH_ALEN);
1781
1782 new_mac_entry->state = mac->state;
1783 vpath->mac_addr_cnt++;
1784
1785 /* Is this a multicast address */
1786 if (0x01 & mac->macaddr[0])
1787 vpath->mcast_addr_cnt++;
1788
1789 return TRUE;
1790}
1791
1792/* Add a mac address to DA table */
42821a5b 1793static enum vxge_hw_status vxge_add_mac_addr(struct vxgedev *vdev,
1794 struct macInfo *mac)
703da5a1
RV		 1795{
1796 enum vxge_hw_status status = VXGE_HW_OK;
1797 struct vxge_vpath *vpath;
1798 enum vxge_hw_vpath_mac_addr_add_mode duplicate_mode;
1799
1800 if (0x01 & mac->macaddr[0]) /* multicast address */
1801 duplicate_mode = VXGE_HW_VPATH_MAC_ADDR_ADD_DUPLICATE;
1802 else
1803 duplicate_mode = VXGE_HW_VPATH_MAC_ADDR_REPLACE_DUPLICATE;
1804
1805 vpath = &vdev->vpaths[mac->vpath_no];
1806 status = vxge_hw_vpath_mac_addr_add(vpath->handle, mac->macaddr,
1807 mac->macmask, duplicate_mode);
1808 if (status != VXGE_HW_OK) {
1809 vxge_debug_init(VXGE_ERR,
1810 "DA config add entry failed for vpath:%d",
1811 vpath->device_id);
1812 } else
1813 if (FALSE == vxge_mac_list_add(vpath, mac))
1814 status = -EPERM;
1815
1816 return status;
1817}
1818
42821a5b 1819static int vxge_mac_list_del(struct vxge_vpath *vpath, struct macInfo *mac)
703da5a1
RV		 1820{
1821 struct list_head *entry, *next;
1822 u64 del_mac = 0;
2c91308f 1823 u8 *mac_address = (u8 *)(&del_mac);
703da5a1
RV		 1824
1825 /* Copy the mac address to delete from the list */
1826 memcpy(mac_address, mac->macaddr, ETH_ALEN);
1827
1828 list_for_each_safe(entry, next, &vpath->mac_addr_list) {
1829 if (((struct vxge_mac_addrs *)entry)->macaddr == del_mac) {
1830 list_del(entry);
1831 kfree((struct vxge_mac_addrs *)entry);
1832 vpath->mac_addr_cnt--;
1833
1834 /* Is this a multicast address */
1835 if (0x01 & mac->macaddr[0])
1836 vpath->mcast_addr_cnt--;
1837 return TRUE;
1838 }
1839 }
1840
1841 return FALSE;
1842}
1843/* delete a mac address from DA table */
42821a5b 1844static enum vxge_hw_status vxge_del_mac_addr(struct vxgedev *vdev,
1845 struct macInfo *mac)
703da5a1
RV		 1846{
1847 enum vxge_hw_status status = VXGE_HW_OK;
1848 struct vxge_vpath *vpath;
1849
1850 vpath = &vdev->vpaths[mac->vpath_no];
1851 status = vxge_hw_vpath_mac_addr_delete(vpath->handle, mac->macaddr,
1852 mac->macmask);
1853 if (status != VXGE_HW_OK) {
1854 vxge_debug_init(VXGE_ERR,
1855 "DA config delete entry failed for vpath:%d",
1856 vpath->device_id);
1857 } else
1858 vxge_mac_list_del(vpath, mac);
1859 return status;
1860}
1861
1862/* list all mac addresses from DA table */
1863enum vxge_hw_status
1864static vxge_search_mac_addr_in_da_table(struct vxge_vpath *vpath,
1865 struct macInfo *mac)
1866{
1867 enum vxge_hw_status status = VXGE_HW_OK;
1868 unsigned char macmask[ETH_ALEN];
1869 unsigned char macaddr[ETH_ALEN];
1870
1871 status = vxge_hw_vpath_mac_addr_get(vpath->handle,
1872 macaddr, macmask);
1873 if (status != VXGE_HW_OK) {
1874 vxge_debug_init(VXGE_ERR,
1875 "DA config list entry failed for vpath:%d",
1876 vpath->device_id);
1877 return status;
1878 }
1879
1880 while (memcmp(mac->macaddr, macaddr, ETH_ALEN)) {
1881
1882 status = vxge_hw_vpath_mac_addr_get_next(vpath->handle,
1883 macaddr, macmask);
1884 if (status != VXGE_HW_OK)
1885 break;
1886 }
1887
1888 return status;
1889}
1890
1891/* Store all vlan ids from the list to the vid table */
42821a5b 1892static enum vxge_hw_status vxge_restore_vpath_vid_table(struct vxge_vpath *vpath)
703da5a1
RV		 1893{
1894 enum vxge_hw_status status = VXGE_HW_OK;
1895 struct vxgedev *vdev = vpath->vdev;
1896 u16 vid;
1897
1898 if (vdev->vlgrp && vpath->is_open) {
1899
b738127d 1900 for (vid = 0; vid < VLAN_N_VID; vid++) {
703da5a1
RV		 1901 if (!vlan_group_get_device(vdev->vlgrp, vid))
1902 continue;
1903 /* Add these vlan to the vid table */
1904 status = vxge_hw_vpath_vid_add(vpath->handle, vid);
1905 }
1906 }
1907
1908 return status;
1909}
1910
1911/* Store all mac addresses from the list to the DA table */
42821a5b 1912static enum vxge_hw_status vxge_restore_vpath_mac_addr(struct vxge_vpath *vpath)
703da5a1
RV		 1913{
1914 enum vxge_hw_status status = VXGE_HW_OK;
1915 struct macInfo mac_info;
1916 u8 *mac_address = NULL;
1917 struct list_head *entry, *next;
1918
1919 memset(&mac_info, 0, sizeof(struct macInfo));
1920
1921 if (vpath->is_open) {
1922
1923 list_for_each_safe(entry, next, &vpath->mac_addr_list) {
1924 mac_address =
1925 (u8 *)&
1926 ((struct vxge_mac_addrs *)entry)->macaddr;
1927 memcpy(mac_info.macaddr, mac_address, ETH_ALEN);
1928 ((struct vxge_mac_addrs *)entry)->state =
1929 VXGE_LL_MAC_ADDR_IN_DA_TABLE;
1930 /* does this mac address already exist in da table? */
1931 status = vxge_search_mac_addr_in_da_table(vpath,
1932 &mac_info);
1933 if (status != VXGE_HW_OK) {
1934 /* Add this mac address to the DA table */
1935 status = vxge_hw_vpath_mac_addr_add(
1936 vpath->handle, mac_info.macaddr,
1937 mac_info.macmask,
1938 VXGE_HW_VPATH_MAC_ADDR_ADD_DUPLICATE);
1939 if (status != VXGE_HW_OK) {
1940 vxge_debug_init(VXGE_ERR,
1941 "DA add entry failed for vpath:%d",
1942 vpath->device_id);
1943 ((struct vxge_mac_addrs *)entry)->state
1944 = VXGE_LL_MAC_ADDR_IN_LIST;
1945 }
1946 }
1947 }
1948 }
1949
1950 return status;
1951}
1952
1953/* reset vpaths */
4d2a5b40 1954enum vxge_hw_status vxge_reset_all_vpaths(struct vxgedev *vdev)
703da5a1 1955{
703da5a1 1956 enum vxge_hw_status status = VXGE_HW_OK;
7adf7d1b
JM		 1957 struct vxge_vpath *vpath;
1958 int i;
703da5a1 1959
7adf7d1b
JM		 1960 for (i = 0; i < vdev->no_of_vpath; i++) {
1961 vpath = &vdev->vpaths[i];
1962 if (vpath->handle) {
1963 if (vxge_hw_vpath_reset(vpath->handle) == VXGE_HW_OK) {
703da5a1
RV		 1964 if (is_vxge_card_up(vdev) &&
1965 vxge_hw_vpath_recover_from_reset(
7adf7d1b 1966 vpath->handle) != VXGE_HW_OK) {
703da5a1
RV		 1967 vxge_debug_init(VXGE_ERR,
1968 "vxge_hw_vpath_recover_"
1969 "from_reset failed for vpath: "
1970 "%d", i);
1971 return status;
1972 }
1973 } else {
1974 vxge_debug_init(VXGE_ERR,
1975 "vxge_hw_vpath_reset failed for "
1976 "vpath:%d", i);
1977 return status;
1978 }
1979 }
7adf7d1b
JM		 1980 }
1981
703da5a1
RV		 1982 return status;
1983}
1984
1985/* close vpaths */
42821a5b 1986static void vxge_close_vpaths(struct vxgedev *vdev, int index)
703da5a1 1987{
7adf7d1b 1988 struct vxge_vpath *vpath;
703da5a1 1989 int i;
7adf7d1b 1990
703da5a1 1991 for (i = index; i < vdev->no_of_vpath; i++) {
7adf7d1b
JM		 1992 vpath = &vdev->vpaths[i];
1993
1994 if (vpath->handle && vpath->is_open) {
1995 vxge_hw_vpath_close(vpath->handle);
703da5a1
RV		 1996 vdev->stats.vpaths_open--;
1997 }
7adf7d1b
JM		 1998 vpath->is_open = 0;
1999 vpath->handle = NULL;
703da5a1
RV		 2000 }
2001}
2002
2003/* open vpaths */
42821a5b 2004static int vxge_open_vpaths(struct vxgedev *vdev)
703da5a1 2005{
7adf7d1b 2006 struct vxge_hw_vpath_attr attr;
703da5a1 2007 enum vxge_hw_status status;
7adf7d1b 2008 struct vxge_vpath *vpath;
703da5a1 2009 u32 vp_id = 0;
7adf7d1b 2010 int i;
703da5a1
RV		 2011
2012 for (i = 0; i < vdev->no_of_vpath; i++) {
7adf7d1b 2013 vpath = &vdev->vpaths[i];
7adf7d1b 2014 vxge_assert(vpath->is_configured);
e7935c96
JM		 2015
2016 if (!vdev->titan1) {
2017 struct vxge_hw_vp_config *vcfg;
2018 vcfg = &vdev->devh->config.vp_config[vpath->device_id];
2019
2020 vcfg->rti.urange_a = RTI_T1A_RX_URANGE_A;
2021 vcfg->rti.urange_b = RTI_T1A_RX_URANGE_B;
2022 vcfg->rti.urange_c = RTI_T1A_RX_URANGE_C;
2023 vcfg->tti.uec_a = TTI_T1A_TX_UFC_A;
2024 vcfg->tti.uec_b = TTI_T1A_TX_UFC_B;
2025 vcfg->tti.uec_c = TTI_T1A_TX_UFC_C(vdev->mtu);
2026 vcfg->tti.uec_d = TTI_T1A_TX_UFC_D(vdev->mtu);
2027 vcfg->tti.ltimer_val = VXGE_T1A_TTI_LTIMER_VAL;
2028 vcfg->tti.rtimer_val = VXGE_T1A_TTI_RTIMER_VAL;
2029 }
2030
7adf7d1b 2031 attr.vp_id = vpath->device_id;
703da5a1
RV		 2032 attr.fifo_attr.callback = vxge_xmit_compl;
2033 attr.fifo_attr.txdl_term = vxge_tx_term;
2034 attr.fifo_attr.per_txdl_space = sizeof(struct vxge_tx_priv);
7adf7d1b 2035 attr.fifo_attr.userdata = &vpath->fifo;
703da5a1
RV		 2036
2037 attr.ring_attr.callback = vxge_rx_1b_compl;
2038 attr.ring_attr.rxd_init = vxge_rx_initial_replenish;
2039 attr.ring_attr.rxd_term = vxge_rx_term;
2040 attr.ring_attr.per_rxd_space = sizeof(struct vxge_rx_priv);
7adf7d1b 2041 attr.ring_attr.userdata = &vpath->ring;
703da5a1 2042
7adf7d1b
JM		 2043 vpath->ring.ndev = vdev->ndev;
2044 vpath->ring.pdev = vdev->pdev;
2045 status = vxge_hw_vpath_open(vdev->devh, &attr, &vpath->handle);
703da5a1 2046 if (status == VXGE_HW_OK) {
7adf7d1b 2047 vpath->fifo.handle =
703da5a1 2048 (struct __vxge_hw_fifo *)attr.fifo_attr.userdata;
7adf7d1b 2049 vpath->ring.handle =
703da5a1 2050 (struct __vxge_hw_ring *)attr.ring_attr.userdata;
7adf7d1b 2051 vpath->fifo.tx_steering_type =
703da5a1 2052 vdev->config.tx_steering_type;
7adf7d1b
JM		 2053 vpath->fifo.ndev = vdev->ndev;
2054 vpath->fifo.pdev = vdev->pdev;
98f45da2
JM		 2055 if (vdev->config.tx_steering_type)
2056 vpath->fifo.txq =
2057 netdev_get_tx_queue(vdev->ndev, i);
2058 else
2059 vpath->fifo.txq =
2060 netdev_get_tx_queue(vdev->ndev, 0);
7adf7d1b 2061 vpath->fifo.indicate_max_pkts =
703da5a1 2062 vdev->config.fifo_indicate_max_pkts;
7adf7d1b
JM		 2063 vpath->ring.rx_vector_no = 0;
2064 vpath->ring.rx_csum = vdev->rx_csum;
b81b3733 2065 vpath->ring.rx_hwts = vdev->rx_hwts;
7adf7d1b
JM		 2066 vpath->is_open = 1;
2067 vdev->vp_handles[i] = vpath->handle;
2068 vpath->ring.gro_enable = vdev->config.gro_enable;
2069 vpath->ring.vlan_tag_strip = vdev->vlan_tag_strip;
703da5a1
RV		 2070 vdev->stats.vpaths_open++;
2071 } else {
2072 vdev->stats.vpath_open_fail++;
2073 vxge_debug_init(VXGE_ERR,
2074 "%s: vpath: %d failed to open "
2075 "with status: %d",
7adf7d1b 2076 vdev->ndev->name, vpath->device_id,
703da5a1
RV		 2077 status);
2078 vxge_close_vpaths(vdev, 0);
2079 return -EPERM;
2080 }
2081
7adf7d1b 2082 vp_id = vpath->handle->vpath->vp_id;
703da5a1
RV		 2083 vdev->vpaths_deployed |= vxge_mBIT(vp_id);
2084 }
2085 return VXGE_HW_OK;
2086}
2087
2088/*
2089 * vxge_isr_napi
2090 * @irq: the irq of the device.
2091 * @dev_id: a void pointer to the hldev structure of the Titan device
2092 * @ptregs: pointer to the registers pushed on the stack.
2093 *
2094 * This function is the ISR handler of the device when napi is enabled. It
2095 * identifies the reason for the interrupt and calls the relevant service
2096 * routines.
2097 */
2098static irqreturn_t vxge_isr_napi(int irq, void *dev_id)
2099{
703da5a1 2100 struct net_device *dev;
a5d165b5 2101 struct __vxge_hw_device *hldev;
703da5a1
RV		 2102 u64 reason;
2103 enum vxge_hw_status status;
2c91308f 2104 struct vxgedev *vdev = (struct vxgedev *)dev_id;
703da5a1
RV		 2105
2106 vxge_debug_intr(VXGE_TRACE, "%s:%d", __func__, __LINE__);
2107
a5d165b5 2108 dev = vdev->ndev;
d8ee7071 2109 hldev = pci_get_drvdata(vdev->pdev);
703da5a1
RV		 2110
2111 if (pci_channel_offline(vdev->pdev))
2112 return IRQ_NONE;
2113
2114 if (unlikely(!is_vxge_card_up(vdev)))
4d2a5b40 2115 return IRQ_HANDLED;
703da5a1
RV		 2116
2117 status = vxge_hw_device_begin_irq(hldev, vdev->exec_mode,
2118 &reason);
2119 if (status == VXGE_HW_OK) {
2120 vxge_hw_device_mask_all(hldev);
2121
2122 if (reason &
2123 VXGE_HW_TITAN_GENERAL_INT_STATUS_VPATH_TRAFFIC_INT(
2124 vdev->vpaths_deployed >>
2125 (64 - VXGE_HW_MAX_VIRTUAL_PATHS))) {
2126
2127 vxge_hw_device_clear_tx_rx(hldev);
2128 napi_schedule(&vdev->napi);
2129 vxge_debug_intr(VXGE_TRACE,
2130 "%s:%d Exiting...", __func__, __LINE__);
2131 return IRQ_HANDLED;
2132 } else
2133 vxge_hw_device_unmask_all(hldev);
2134 } else if (unlikely((status == VXGE_HW_ERR_VPATH) ||
2135 (status == VXGE_HW_ERR_CRITICAL) ||
2136 (status == VXGE_HW_ERR_FIFO))) {
2137 vxge_hw_device_mask_all(hldev);
2138 vxge_hw_device_flush_io(hldev);
2139 return IRQ_HANDLED;
2140 } else if (unlikely(status == VXGE_HW_ERR_SLOT_FREEZE))
2141 return IRQ_HANDLED;
2142
2143 vxge_debug_intr(VXGE_TRACE, "%s:%d Exiting...", __func__, __LINE__);
2144 return IRQ_NONE;
2145}
2146
2147#ifdef CONFIG_PCI_MSI
2148
2149static irqreturn_t
2150vxge_tx_msix_handle(int irq, void *dev_id)
2151{
2152 struct vxge_fifo *fifo = (struct vxge_fifo *)dev_id;
2153
2154 VXGE_COMPLETE_VPATH_TX(fifo);
2155
2156 return IRQ_HANDLED;
2157}
2158
2159static irqreturn_t
2160vxge_rx_msix_napi_handle(int irq, void *dev_id)
2161{
2162 struct vxge_ring *ring = (struct vxge_ring *)dev_id;
2163
2164 /* MSIX_IDX for Rx is 1 */
2165 vxge_hw_channel_msix_mask((struct __vxge_hw_channel *)ring->handle,
2166 ring->rx_vector_no);
2167
2168 napi_schedule(&ring->napi);
2169 return IRQ_HANDLED;
2170}
2171
2172static irqreturn_t
2173vxge_alarm_msix_handle(int irq, void *dev_id)
2174{
2175 int i;
2176 enum vxge_hw_status status;
2177 struct vxge_vpath *vpath = (struct vxge_vpath *)dev_id;
2178 struct vxgedev *vdev = vpath->vdev;
b59c9457
SH		 2179 int msix_id = (vpath->handle->vpath->vp_id *
2180 VXGE_HW_VPATH_MSIX_ACTIVE) + VXGE_ALARM_MSIX_ID;
703da5a1
RV		 2181
2182 for (i = 0; i < vdev->no_of_vpath; i++) {
b59c9457 2183 vxge_hw_vpath_msix_mask(vdev->vpaths[i].handle, msix_id);
703da5a1
RV		 2184
2185 status = vxge_hw_vpath_alarm_process(vdev->vpaths[i].handle,
2186 vdev->exec_mode);
2187 if (status == VXGE_HW_OK) {
2188
2189 vxge_hw_vpath_msix_unmask(vdev->vpaths[i].handle,
b59c9457 2190 msix_id);
703da5a1
RV		 2191 continue;
2192 }
2193 vxge_debug_intr(VXGE_ERR,
2194 "%s: vxge_hw_vpath_alarm_process failed %x ",
2195 VXGE_DRIVER_NAME, status);
2196 }
2197 return IRQ_HANDLED;
2198}
2199
2200static int vxge_alloc_msix(struct vxgedev *vdev)
2201{
2202 int j, i, ret = 0;
b59c9457 2203 int msix_intr_vect = 0, temp;
703da5a1
RV		 2204 vdev->intr_cnt = 0;
2205
b59c9457 2206start:
703da5a1
RV		 2207 /* Tx/Rx MSIX Vectors count */
2208 vdev->intr_cnt = vdev->no_of_vpath * 2;
2209
2210 /* Alarm MSIX Vectors count */
2211 vdev->intr_cnt++;
2212
baeb2ffa
JP		 2213 vdev->entries = kcalloc(vdev->intr_cnt, sizeof(struct msix_entry),
2214 GFP_KERNEL);
703da5a1
RV		 2215 if (!vdev->entries) {
2216 vxge_debug_init(VXGE_ERR,
2217 "%s: memory allocation failed",
2218 VXGE_DRIVER_NAME);
cc413d90
MS		 2219 ret = -ENOMEM;
2220 goto alloc_entries_failed;
703da5a1
RV		 2221 }
2222
baeb2ffa
JP		 2223 vdev->vxge_entries = kcalloc(vdev->intr_cnt,
2224 sizeof(struct vxge_msix_entry),
2225 GFP_KERNEL);
703da5a1
RV		 2226 if (!vdev->vxge_entries) {
2227 vxge_debug_init(VXGE_ERR, "%s: memory allocation failed",
2228 VXGE_DRIVER_NAME);
cc413d90
MS		 2229 ret = -ENOMEM;
2230 goto alloc_vxge_entries_failed;
703da5a1
RV		 2231 }
2232
b59c9457 2233 for (i = 0, j = 0; i < vdev->no_of_vpath; i++) {
703da5a1
RV		 2234
2235 msix_intr_vect = i * VXGE_HW_VPATH_MSIX_ACTIVE;
2236
2237 /* Initialize the fifo vector */
2238 vdev->entries[j].entry = msix_intr_vect;
2239 vdev->vxge_entries[j].entry = msix_intr_vect;
2240 vdev->vxge_entries[j].in_use = 0;
2241 j++;
2242
2243 /* Initialize the ring vector */
2244 vdev->entries[j].entry = msix_intr_vect + 1;
2245 vdev->vxge_entries[j].entry = msix_intr_vect + 1;
2246 vdev->vxge_entries[j].in_use = 0;
2247 j++;
2248 }
2249
2250 /* Initialize the alarm vector */
b59c9457
SH		 2251 vdev->entries[j].entry = VXGE_ALARM_MSIX_ID;
2252 vdev->vxge_entries[j].entry = VXGE_ALARM_MSIX_ID;
703da5a1
RV		 2253 vdev->vxge_entries[j].in_use = 0;
2254
b59c9457 2255 ret = pci_enable_msix(vdev->pdev, vdev->entries, vdev->intr_cnt);
b59c9457 2256 if (ret > 0) {
703da5a1
RV		 2257 vxge_debug_init(VXGE_ERR,
2258 "%s: MSI-X enable failed for %d vectors, ret: %d",
b59c9457 2259 VXGE_DRIVER_NAME, vdev->intr_cnt, ret);
cc413d90
MS		 2260 if ((max_config_vpath != VXGE_USE_DEFAULT) || (ret < 3)) {
2261 ret = -ENODEV;
2262 goto enable_msix_failed;
2263 }
2264
703da5a1
RV		 2265 kfree(vdev->entries);
2266 kfree(vdev->vxge_entries);
2267 vdev->entries = NULL;
2268 vdev->vxge_entries = NULL;
b59c9457
SH		 2269 /* Try with less no of vector by reducing no of vpaths count */
2270 temp = (ret - 1)/2;
2271 vxge_close_vpaths(vdev, temp);
2272 vdev->no_of_vpath = temp;
2273 goto start;
cc413d90
MS		 2274 } else if (ret < 0) {
2275 ret = -ENODEV;
2276 goto enable_msix_failed;
2277 }
703da5a1 2278 return 0;
cc413d90
MS		 2279
2280enable_msix_failed:
2281 kfree(vdev->vxge_entries);
2282alloc_vxge_entries_failed:
2283 kfree(vdev->entries);
2284alloc_entries_failed:
2285 return ret;
703da5a1
RV		 2286}
2287
2288static int vxge_enable_msix(struct vxgedev *vdev)
2289{
2290
2291 int i, ret = 0;
703da5a1 2292 /* 0 - Tx, 1 - Rx */
b59c9457
SH		 2293 int tim_msix_id[4] = {0, 1, 0, 0};
2294
703da5a1
RV		 2295 vdev->intr_cnt = 0;
2296
2297 /* allocate msix vectors */
2298 ret = vxge_alloc_msix(vdev);
2299 if (!ret) {
703da5a1 2300 for (i = 0; i < vdev->no_of_vpath; i++) {
7adf7d1b 2301 struct vxge_vpath *vpath = &vdev->vpaths[i];
703da5a1 2302
7adf7d1b
JM		 2303 /* If fifo or ring are not enabled, the MSIX vector for
2304 * it should be set to 0.
2305 */
2306 vpath->ring.rx_vector_no = (vpath->device_id *
2307 VXGE_HW_VPATH_MSIX_ACTIVE) + 1;
703da5a1 2308
7adf7d1b
JM		 2309 vxge_hw_vpath_msix_set(vpath->handle, tim_msix_id,
2310 VXGE_ALARM_MSIX_ID);
703da5a1
RV		 2311 }
2312 }
2313
2314 return ret;
2315}
2316
2317static void vxge_rem_msix_isr(struct vxgedev *vdev)
2318{
2319 int intr_cnt;
2320
b59c9457 2321 for (intr_cnt = 0; intr_cnt < (vdev->no_of_vpath * 2 + 1);
703da5a1
RV		 2322 intr_cnt++) {
2323 if (vdev->vxge_entries[intr_cnt].in_use) {
2324 synchronize_irq(vdev->entries[intr_cnt].vector);
2325 free_irq(vdev->entries[intr_cnt].vector,
2326 vdev->vxge_entries[intr_cnt].arg);
2327 vdev->vxge_entries[intr_cnt].in_use = 0;
2328 }
2329 }
2330
2331 kfree(vdev->entries);
2332 kfree(vdev->vxge_entries);
2333 vdev->entries = NULL;
2334 vdev->vxge_entries = NULL;
2335
2336 if (vdev->config.intr_type == MSI_X)
2337 pci_disable_msix(vdev->pdev);
2338}
2339#endif
2340
2341static void vxge_rem_isr(struct vxgedev *vdev)
2342{
2c91308f 2343 struct __vxge_hw_device *hldev;
d8ee7071 2344 hldev = pci_get_drvdata(vdev->pdev);
703da5a1
RV		 2345
2346#ifdef CONFIG_PCI_MSI
2347 if (vdev->config.intr_type == MSI_X) {
2348 vxge_rem_msix_isr(vdev);
2349 } else
2350#endif
2351 if (vdev->config.intr_type == INTA) {
2352 synchronize_irq(vdev->pdev->irq);
a5d165b5 2353 free_irq(vdev->pdev->irq, vdev);
703da5a1
RV		 2354 }
2355}
2356
2357static int vxge_add_isr(struct vxgedev *vdev)
2358{
2359 int ret = 0;
703da5a1
RV		 2360#ifdef CONFIG_PCI_MSI
2361 int vp_idx = 0, intr_idx = 0, intr_cnt = 0, msix_idx = 0, irq_req = 0;
703da5a1
RV		 2362 int pci_fun = PCI_FUNC(vdev->pdev->devfn);
2363
2364 if (vdev->config.intr_type == MSI_X)
2365 ret = vxge_enable_msix(vdev);
2366
2367 if (ret) {
2368 vxge_debug_init(VXGE_ERR,
2369 "%s: Enabling MSI-X Failed", VXGE_DRIVER_NAME);
eb5f10c2
SH		 2370 vxge_debug_init(VXGE_ERR,
2371 "%s: Defaulting to INTA", VXGE_DRIVER_NAME);
2372 vdev->config.intr_type = INTA;
703da5a1
RV		 2373 }
2374
2375 if (vdev->config.intr_type == MSI_X) {
2376 for (intr_idx = 0;
2377 intr_idx < (vdev->no_of_vpath *
2378 VXGE_HW_VPATH_MSIX_ACTIVE); intr_idx++) {
2379
2380 msix_idx = intr_idx % VXGE_HW_VPATH_MSIX_ACTIVE;
2381 irq_req = 0;
2382
2383 switch (msix_idx) {
2384 case 0:
2385 snprintf(vdev->desc[intr_cnt], VXGE_INTR_STRLEN,
b59c9457
SH		 2386 "%s:vxge:MSI-X %d - Tx - fn:%d vpath:%d",
2387 vdev->ndev->name,
2388 vdev->entries[intr_cnt].entry,
2389 pci_fun, vp_idx);
703da5a1
RV		 2390 ret = request_irq(
2391 vdev->entries[intr_cnt].vector,
2392 vxge_tx_msix_handle, 0,
2393 vdev->desc[intr_cnt],
2394 &vdev->vpaths[vp_idx].fifo);
2395 vdev->vxge_entries[intr_cnt].arg =
2396 &vdev->vpaths[vp_idx].fifo;
2397 irq_req = 1;
2398 break;
2399 case 1:
2400 snprintf(vdev->desc[intr_cnt], VXGE_INTR_STRLEN,
b59c9457
SH		 2401 "%s:vxge:MSI-X %d - Rx - fn:%d vpath:%d",
2402 vdev->ndev->name,
2403 vdev->entries[intr_cnt].entry,
2404 pci_fun, vp_idx);
703da5a1
RV		 2405 ret = request_irq(
2406 vdev->entries[intr_cnt].vector,
2407 vxge_rx_msix_napi_handle,
2408 0,
2409 vdev->desc[intr_cnt],
2410 &vdev->vpaths[vp_idx].ring);
2411 vdev->vxge_entries[intr_cnt].arg =
2412 &vdev->vpaths[vp_idx].ring;
2413 irq_req = 1;
2414 break;
2415 }
2416
2417 if (ret) {
2418 vxge_debug_init(VXGE_ERR,
2419 "%s: MSIX - %d Registration failed",
2420 vdev->ndev->name, intr_cnt);
2421 vxge_rem_msix_isr(vdev);
eb5f10c2
SH		 2422 vdev->config.intr_type = INTA;
2423 vxge_debug_init(VXGE_ERR,
2424 "%s: Defaulting to INTA"
2425 , vdev->ndev->name);
703da5a1 2426 goto INTA_MODE;
703da5a1
RV		 2427 }
2428
2429 if (irq_req) {
2430 /* We requested for this msix interrupt */
2431 vdev->vxge_entries[intr_cnt].in_use = 1;
b59c9457
SH		 2432 msix_idx += vdev->vpaths[vp_idx].device_id *
2433 VXGE_HW_VPATH_MSIX_ACTIVE;
703da5a1
RV		 2434 vxge_hw_vpath_msix_unmask(
2435 vdev->vpaths[vp_idx].handle,
b59c9457 2436 msix_idx);
703da5a1
RV		 2437 intr_cnt++;
2438 }
2439
2440 /* Point to next vpath handler */
8e95a202
JP		 2441 if (((intr_idx + 1) % VXGE_HW_VPATH_MSIX_ACTIVE == 0) &&
2442 (vp_idx < (vdev->no_of_vpath - 1)))
2443 vp_idx++;
703da5a1
RV		 2444 }
2445
b59c9457 2446 intr_cnt = vdev->no_of_vpath * 2;
703da5a1 2447 snprintf(vdev->desc[intr_cnt], VXGE_INTR_STRLEN,
b59c9457
SH		 2448 "%s:vxge:MSI-X %d - Alarm - fn:%d",
2449 vdev->ndev->name,
2450 vdev->entries[intr_cnt].entry,
2451 pci_fun);
703da5a1
RV		 2452 /* For Alarm interrupts */
2453 ret = request_irq(vdev->entries[intr_cnt].vector,
2454 vxge_alarm_msix_handle, 0,
2455 vdev->desc[intr_cnt],
b59c9457 2456 &vdev->vpaths[0]);
703da5a1
RV		 2457 if (ret) {
2458 vxge_debug_init(VXGE_ERR,
2459 "%s: MSIX - %d Registration failed",
2460 vdev->ndev->name, intr_cnt);
2461 vxge_rem_msix_isr(vdev);
eb5f10c2
SH		 2462 vdev->config.intr_type = INTA;
2463 vxge_debug_init(VXGE_ERR,
2464 "%s: Defaulting to INTA",
2465 vdev->ndev->name);
703da5a1 2466 goto INTA_MODE;
703da5a1
RV		 2467 }
2468
b59c9457
SH		 2469 msix_idx = (vdev->vpaths[0].handle->vpath->vp_id *
2470 VXGE_HW_VPATH_MSIX_ACTIVE) + VXGE_ALARM_MSIX_ID;
703da5a1 2471 vxge_hw_vpath_msix_unmask(vdev->vpaths[vp_idx].handle,
b59c9457 2472 msix_idx);
703da5a1 2473 vdev->vxge_entries[intr_cnt].in_use = 1;
b59c9457 2474 vdev->vxge_entries[intr_cnt].arg = &vdev->vpaths[0];
703da5a1
RV		 2475 }
2476INTA_MODE:
2477#endif
703da5a1
RV		 2478
2479 if (vdev->config.intr_type == INTA) {
b59c9457
SH		 2480 snprintf(vdev->desc[0], VXGE_INTR_STRLEN,
2481 "%s:vxge:INTA", vdev->ndev->name);
eb5f10c2
SH		 2482 vxge_hw_device_set_intr_type(vdev->devh,
2483 VXGE_HW_INTR_MODE_IRQLINE);
2484 vxge_hw_vpath_tti_ci_set(vdev->devh,
2485 vdev->vpaths[0].device_id);
703da5a1
RV		 2486 ret = request_irq((int) vdev->pdev->irq,
2487 vxge_isr_napi,
a5d165b5 2488 IRQF_SHARED, vdev->desc[0], vdev);
703da5a1
RV		 2489 if (ret) {
2490 vxge_debug_init(VXGE_ERR,
2491 "%s %s-%d: ISR registration failed",
2492 VXGE_DRIVER_NAME, "IRQ", vdev->pdev->irq);
2493 return -ENODEV;
2494 }
2495 vxge_debug_init(VXGE_TRACE,
2496 "new %s-%d line allocated",
2497 "IRQ", vdev->pdev->irq);
2498 }
2499
2500 return VXGE_HW_OK;
2501}
2502
2503static void vxge_poll_vp_reset(unsigned long data)
2504{
2505 struct vxgedev *vdev = (struct vxgedev *)data;
2506 int i, j = 0;
2507
2508 for (i = 0; i < vdev->no_of_vpath; i++) {
2509 if (test_bit(i, &vdev->vp_reset)) {
2510 vxge_reset_vpath(vdev, i);
2511 j++;
2512 }
2513 }
2514 if (j && (vdev->config.intr_type != MSI_X)) {
2515 vxge_hw_device_unmask_all(vdev->devh);
2516 vxge_hw_device_flush_io(vdev->devh);
2517 }
2518
2519 mod_timer(&vdev->vp_reset_timer, jiffies + HZ / 2);
2520}
2521
2522static void vxge_poll_vp_lockup(unsigned long data)
2523{
2524 struct vxgedev *vdev = (struct vxgedev *)data;
703da5a1 2525 enum vxge_hw_status status = VXGE_HW_OK;
7adf7d1b
JM		 2526 struct vxge_vpath *vpath;
2527 struct vxge_ring *ring;
2528 int i;
703da5a1
RV		 2529
2530 for (i = 0; i < vdev->no_of_vpath; i++) {
2531 ring = &vdev->vpaths[i].ring;
2532 /* Did this vpath received any packets */
2533 if (ring->stats.prev_rx_frms == ring->stats.rx_frms) {
2534 status = vxge_hw_vpath_check_leak(ring->handle);
2535
2536 /* Did it received any packets last time */
2537 if ((VXGE_HW_FAIL == status) &&
2538 (VXGE_HW_FAIL == ring->last_status)) {
2539
2540 /* schedule vpath reset */
2541 if (!test_and_set_bit(i, &vdev->vp_reset)) {
7adf7d1b 2542 vpath = &vdev->vpaths[i];
703da5a1
RV		 2543
2544 /* disable interrupts for this vpath */
2545 vxge_vpath_intr_disable(vdev, i);
2546
2547 /* stop the queue for this vpath */
98f45da2 2548 netif_tx_stop_queue(vpath->fifo.txq);
703da5a1
RV		 2549 continue;
2550 }
2551 }
2552 }
2553 ring->stats.prev_rx_frms = ring->stats.rx_frms;
2554 ring->last_status = status;
2555 }
2556
2557 /* Check every 1 milli second */
2558 mod_timer(&vdev->vp_lockup_timer, jiffies + HZ / 1000);
2559}
2560
2561/**
2562 * vxge_open
2563 * @dev: pointer to the device structure.
2564 *
2565 * This function is the open entry point of the driver. It mainly calls a
2566 * function to allocate Rx buffers and inserts them into the buffer
2567 * descriptors and then enables the Rx part of the NIC.
2568 * Return value: '0' on success and an appropriate (-)ve integer as
2569 * defined in errno.h file on failure.
2570 */
42821a5b 2571static int
703da5a1
RV		 2572vxge_open(struct net_device *dev)
2573{
2574 enum vxge_hw_status status;
2575 struct vxgedev *vdev;
2576 struct __vxge_hw_device *hldev;
7adf7d1b 2577 struct vxge_vpath *vpath;
703da5a1
RV		 2578 int ret = 0;
2579 int i;
2580 u64 val64, function_mode;
2581 vxge_debug_entryexit(VXGE_TRACE,
2582 "%s: %s:%d", dev->name, __func__, __LINE__);
2583
5f54cebb 2584 vdev = netdev_priv(dev);
d8ee7071 2585 hldev = pci_get_drvdata(vdev->pdev);
703da5a1
RV		 2586 function_mode = vdev->config.device_hw_info.function_mode;
2587
2588 /* make sure you have link off by default every time Nic is
2589 * initialized */
2590 netif_carrier_off(dev);
2591
703da5a1
RV		 2592 /* Open VPATHs */
2593 status = vxge_open_vpaths(vdev);
2594 if (status != VXGE_HW_OK) {
2595 vxge_debug_init(VXGE_ERR,
2596 "%s: fatal: Vpath open failed", vdev->ndev->name);
2597 ret = -EPERM;
2598 goto out0;
2599 }
2600
2601 vdev->mtu = dev->mtu;
2602
2603 status = vxge_add_isr(vdev);
2604 if (status != VXGE_HW_OK) {
2605 vxge_debug_init(VXGE_ERR,
2606 "%s: fatal: ISR add failed", dev->name);
2607 ret = -EPERM;
2608 goto out1;
2609 }
2610
703da5a1
RV		 2611 if (vdev->config.intr_type != MSI_X) {
2612 netif_napi_add(dev, &vdev->napi, vxge_poll_inta,
2613 vdev->config.napi_weight);
2614 napi_enable(&vdev->napi);
7adf7d1b
JM		 2615 for (i = 0; i < vdev->no_of_vpath; i++) {
2616 vpath = &vdev->vpaths[i];
2617 vpath->ring.napi_p = &vdev->napi;
2618 }
703da5a1
RV		 2619 } else {
2620 for (i = 0; i < vdev->no_of_vpath; i++) {
7adf7d1b
JM		 2621 vpath = &vdev->vpaths[i];
2622 netif_napi_add(dev, &vpath->ring.napi,
703da5a1 2623 vxge_poll_msix, vdev->config.napi_weight);
7adf7d1b
JM		 2624 napi_enable(&vpath->ring.napi);
2625 vpath->ring.napi_p = &vpath->ring.napi;
703da5a1
RV		 2626 }
2627 }
2628
2629 /* configure RTH */
2630 if (vdev->config.rth_steering) {
2631 status = vxge_rth_configure(vdev);
2632 if (status != VXGE_HW_OK) {
2633 vxge_debug_init(VXGE_ERR,
2634 "%s: fatal: RTH configuration failed",
2635 dev->name);
2636 ret = -EPERM;
2637 goto out2;
2638 }
2639 }
47f01db4
JM		 2640 printk(KERN_INFO "%s: Receive Hashing Offload %s\n", dev->name,
2641 hldev->config.rth_en ? "enabled" : "disabled");
703da5a1
RV		 2642
2643 for (i = 0; i < vdev->no_of_vpath; i++) {
7adf7d1b
JM		 2644 vpath = &vdev->vpaths[i];
2645
703da5a1 2646 /* set initial mtu before enabling the device */
7adf7d1b 2647 status = vxge_hw_vpath_mtu_set(vpath->handle, vdev->mtu);
703da5a1
RV		 2648 if (status != VXGE_HW_OK) {
2649 vxge_debug_init(VXGE_ERR,
2650 "%s: fatal: can not set new MTU", dev->name);
2651 ret = -EPERM;
2652 goto out2;
2653 }
2654 }
2655
2656 VXGE_DEVICE_DEBUG_LEVEL_SET(VXGE_TRACE, VXGE_COMPONENT_LL, vdev);
2657 vxge_debug_init(vdev->level_trace,
2658 "%s: MTU is %d", vdev->ndev->name, vdev->mtu);
2659 VXGE_DEVICE_DEBUG_LEVEL_SET(VXGE_ERR, VXGE_COMPONENT_LL, vdev);
2660
7adf7d1b
JM		 2661 /* Restore the DA, VID table and also multicast and promiscuous mode
2662 * states
2663 */
2664 if (vdev->all_multi_flg) {
2665 for (i = 0; i < vdev->no_of_vpath; i++) {
2666 vpath = &vdev->vpaths[i];
2667 vxge_restore_vpath_mac_addr(vpath);
2668 vxge_restore_vpath_vid_table(vpath);
2669
2670 status = vxge_hw_vpath_mcast_enable(vpath->handle);
2671 if (status != VXGE_HW_OK)
2672 vxge_debug_init(VXGE_ERR,
2673 "%s:%d Enabling multicast failed",
2674 __func__, __LINE__);
2675 }
703da5a1
RV		 2676 }
2677
2678 /* Enable vpath to sniff all unicast/multicast traffic that not
2679 * addressed to them. We allow promiscous mode for PF only
2680 */
2681
2682 val64 = 0;
2683 for (i = 0; i < VXGE_HW_MAX_VIRTUAL_PATHS; i++)
2684 val64 |= VXGE_HW_RXMAC_AUTHORIZE_ALL_ADDR_VP(i);
2685
2686 vxge_hw_mgmt_reg_write(vdev->devh,
2687 vxge_hw_mgmt_reg_type_mrpcim,
2688 0,
2689 (ulong)offsetof(struct vxge_hw_mrpcim_reg,
2690 rxmac_authorize_all_addr),
2691 val64);
2692
2693 vxge_hw_mgmt_reg_write(vdev->devh,
2694 vxge_hw_mgmt_reg_type_mrpcim,
2695 0,
2696 (ulong)offsetof(struct vxge_hw_mrpcim_reg,
2697 rxmac_authorize_all_vid),
2698 val64);
2699
2700 vxge_set_multicast(dev);
2701
2702 /* Enabling Bcast and mcast for all vpath */
2703 for (i = 0; i < vdev->no_of_vpath; i++) {
7adf7d1b
JM		 2704 vpath = &vdev->vpaths[i];
2705 status = vxge_hw_vpath_bcast_enable(vpath->handle);
703da5a1
RV		 2706 if (status != VXGE_HW_OK)
2707 vxge_debug_init(VXGE_ERR,
2708 "%s : Can not enable bcast for vpath "
2709 "id %d", dev->name, i);
2710 if (vdev->config.addr_learn_en) {
7adf7d1b 2711 status = vxge_hw_vpath_mcast_enable(vpath->handle);
703da5a1
RV		 2712 if (status != VXGE_HW_OK)
2713 vxge_debug_init(VXGE_ERR,
2714 "%s : Can not enable mcast for vpath "
2715 "id %d", dev->name, i);
2716 }
2717 }
2718
2719 vxge_hw_device_setpause_data(vdev->devh, 0,
2720 vdev->config.tx_pause_enable,
2721 vdev->config.rx_pause_enable);
2722
2723 if (vdev->vp_reset_timer.function == NULL)
2724 vxge_os_timer(vdev->vp_reset_timer,
2725 vxge_poll_vp_reset, vdev, (HZ/2));
2726
e7935c96
JM		 2727 /* There is no need to check for RxD leak and RxD lookup on Titan1A */
2728 if (vdev->titan1 && vdev->vp_lockup_timer.function == NULL)
2729 vxge_os_timer(vdev->vp_lockup_timer, vxge_poll_vp_lockup, vdev,
2730 HZ / 2);
703da5a1
RV		 2731
2732 set_bit(__VXGE_STATE_CARD_UP, &vdev->state);
2733
2734 smp_wmb();
2735
2736 if (vxge_hw_device_link_state_get(vdev->devh) == VXGE_HW_LINK_UP) {
2737 netif_carrier_on(vdev->ndev);
75f5e1c6 2738 netdev_notice(vdev->ndev, "Link Up\n");
703da5a1
RV		 2739 vdev->stats.link_up++;
2740 }
2741
2742 vxge_hw_device_intr_enable(vdev->devh);
2743
2744 smp_wmb();
2745
2746 for (i = 0; i < vdev->no_of_vpath; i++) {
7adf7d1b
JM		 2747 vpath = &vdev->vpaths[i];
2748
2749 vxge_hw_vpath_enable(vpath->handle);
703da5a1 2750 smp_wmb();
7adf7d1b 2751 vxge_hw_vpath_rx_doorbell_init(vpath->handle);
703da5a1
RV		 2752 }
2753
d03848e0 2754 netif_tx_start_all_queues(vdev->ndev);
703da5a1
RV		 2755 goto out0;
2756
2757out2:
2758 vxge_rem_isr(vdev);
2759
2760 /* Disable napi */
2761 if (vdev->config.intr_type != MSI_X)
2762 napi_disable(&vdev->napi);
2763 else {
2764 for (i = 0; i < vdev->no_of_vpath; i++)
2765 napi_disable(&vdev->vpaths[i].ring.napi);
2766 }
2767
2768out1:
2769 vxge_close_vpaths(vdev, 0);
2770out0:
2771 vxge_debug_entryexit(VXGE_TRACE,
2772 "%s: %s:%d Exiting...",
2773 dev->name, __func__, __LINE__);
2774 return ret;
2775}
2776
2777/* Loop throught the mac address list and delete all the entries */
42821a5b 2778static void vxge_free_mac_add_list(struct vxge_vpath *vpath)
703da5a1
RV		 2779{
2780
2781 struct list_head *entry, *next;
2782 if (list_empty(&vpath->mac_addr_list))
2783 return;
2784
2785 list_for_each_safe(entry, next, &vpath->mac_addr_list) {
2786 list_del(entry);
2787 kfree((struct vxge_mac_addrs *)entry);
2788 }
2789}
2790
2791static void vxge_napi_del_all(struct vxgedev *vdev)
2792{
2793 int i;
2794 if (vdev->config.intr_type != MSI_X)
2795 netif_napi_del(&vdev->napi);
2796 else {
2797 for (i = 0; i < vdev->no_of_vpath; i++)
2798 netif_napi_del(&vdev->vpaths[i].ring.napi);
2799 }
703da5a1
RV		 2800}
2801
42821a5b 2802static int do_vxge_close(struct net_device *dev, int do_io)
703da5a1
RV		 2803{
2804 enum vxge_hw_status status;
2805 struct vxgedev *vdev;
2806 struct __vxge_hw_device *hldev;
2807 int i;
2808 u64 val64, vpath_vector;
2809 vxge_debug_entryexit(VXGE_TRACE, "%s: %s:%d",
2810 dev->name, __func__, __LINE__);
2811
5f54cebb 2812 vdev = netdev_priv(dev);
d8ee7071 2813 hldev = pci_get_drvdata(vdev->pdev);
703da5a1 2814
bd9ee680
SH		 2815 if (unlikely(!is_vxge_card_up(vdev)))
2816 return 0;
2817
703da5a1
RV		 2818 /* If vxge_handle_crit_err task is executing,
2819 * wait till it completes. */
2820 while (test_and_set_bit(__VXGE_STATE_RESET_CARD, &vdev->state))
2821 msleep(50);
2822
703da5a1
RV		 2823 if (do_io) {
2824 /* Put the vpath back in normal mode */
2825 vpath_vector = vxge_mBIT(vdev->vpaths[0].device_id);
2826 status = vxge_hw_mgmt_reg_read(vdev->devh,
2827 vxge_hw_mgmt_reg_type_mrpcim,
2828 0,
2829 (ulong)offsetof(
2830 struct vxge_hw_mrpcim_reg,
2831 rts_mgr_cbasin_cfg),
2832 &val64);
2833
2834 if (status == VXGE_HW_OK) {
2835 val64 &= ~vpath_vector;
2836 status = vxge_hw_mgmt_reg_write(vdev->devh,
2837 vxge_hw_mgmt_reg_type_mrpcim,
2838 0,
2839 (ulong)offsetof(
2840 struct vxge_hw_mrpcim_reg,
2841 rts_mgr_cbasin_cfg),
2842 val64);
2843 }
2844
2845 /* Remove the function 0 from promiscous mode */
2846 vxge_hw_mgmt_reg_write(vdev->devh,
2847 vxge_hw_mgmt_reg_type_mrpcim,
2848 0,
2849 (ulong)offsetof(struct vxge_hw_mrpcim_reg,
2850 rxmac_authorize_all_addr),
2851 0);
2852
2853 vxge_hw_mgmt_reg_write(vdev->devh,
2854 vxge_hw_mgmt_reg_type_mrpcim,
2855 0,
2856 (ulong)offsetof(struct vxge_hw_mrpcim_reg,
2857 rxmac_authorize_all_vid),
2858 0);
2859
2860 smp_wmb();
2861 }
e7935c96
JM		 2862
2863 if (vdev->titan1)
2864 del_timer_sync(&vdev->vp_lockup_timer);
703da5a1
RV		 2865
2866 del_timer_sync(&vdev->vp_reset_timer);
2867
4d2a5b40
JM		 2868 if (do_io)
2869 vxge_hw_device_wait_receive_idle(hldev);
2870
2871 clear_bit(__VXGE_STATE_CARD_UP, &vdev->state);
2872
703da5a1
RV		 2873 /* Disable napi */
2874 if (vdev->config.intr_type != MSI_X)
2875 napi_disable(&vdev->napi);
2876 else {
2877 for (i = 0; i < vdev->no_of_vpath; i++)
2878 napi_disable(&vdev->vpaths[i].ring.napi);
2879 }
2880
2881 netif_carrier_off(vdev->ndev);
75f5e1c6 2882 netdev_notice(vdev->ndev, "Link Down\n");
d03848e0 2883 netif_tx_stop_all_queues(vdev->ndev);
703da5a1
RV		 2884
2885 /* Note that at this point xmit() is stopped by upper layer */
2886 if (do_io)
2887 vxge_hw_device_intr_disable(vdev->devh);
2888
703da5a1
RV		 2889 vxge_rem_isr(vdev);
2890
2891 vxge_napi_del_all(vdev);
2892
2893 if (do_io)
2894 vxge_reset_all_vpaths(vdev);
2895
2896 vxge_close_vpaths(vdev, 0);
2897
2898 vxge_debug_entryexit(VXGE_TRACE,
2899 "%s: %s:%d Exiting...", dev->name, __func__, __LINE__);
2900
703da5a1
RV		 2901 clear_bit(__VXGE_STATE_RESET_CARD, &vdev->state);
2902
2903 return 0;
2904}
2905
2906/**
2907 * vxge_close
2908 * @dev: device pointer.
2909 *
2910 * This is the stop entry point of the driver. It needs to undo exactly
2911 * whatever was done by the open entry point, thus it's usually referred to
2912 * as the close function.Among other things this function mainly stops the
2913 * Rx side of the NIC and frees all the Rx buffers in the Rx rings.
2914 * Return value: '0' on success and an appropriate (-)ve integer as
2915 * defined in errno.h file on failure.
2916 */
42821a5b 2917static int
703da5a1
RV		 2918vxge_close(struct net_device *dev)
2919{
2920 do_vxge_close(dev, 1);
2921 return 0;
2922}
2923
2924/**
2925 * vxge_change_mtu
2926 * @dev: net device pointer.
2927 * @new_mtu :the new MTU size for the device.
2928 *
2929 * A driver entry point to change MTU size for the device. Before changing
2930 * the MTU the device must be stopped.
2931 */
2932static int vxge_change_mtu(struct net_device *dev, int new_mtu)
2933{
2934 struct vxgedev *vdev = netdev_priv(dev);
2935
2936 vxge_debug_entryexit(vdev->level_trace,
2937 "%s:%d", __func__, __LINE__);
2938 if ((new_mtu < VXGE_HW_MIN_MTU) || (new_mtu > VXGE_HW_MAX_MTU)) {
2939 vxge_debug_init(vdev->level_err,
2940 "%s: mtu size is invalid", dev->name);
2941 return -EPERM;
2942 }
2943
2944 /* check if device is down already */
2945 if (unlikely(!is_vxge_card_up(vdev))) {
2946 /* just store new value, will use later on open() */
2947 dev->mtu = new_mtu;
2948 vxge_debug_init(vdev->level_err,
2949 "%s", "device is down on MTU change");
2950 return 0;
2951 }
2952
2953 vxge_debug_init(vdev->level_trace,
2954 "trying to apply new MTU %d", new_mtu);
2955
2956 if (vxge_close(dev))
2957 return -EIO;
2958
2959 dev->mtu = new_mtu;
2960 vdev->mtu = new_mtu;
2961
2962 if (vxge_open(dev))
2963 return -EIO;
2964
2965 vxge_debug_init(vdev->level_trace,
2966 "%s: MTU changed to %d", vdev->ndev->name, new_mtu);
2967
2968 vxge_debug_entryexit(vdev->level_trace,
2969 "%s:%d Exiting...", __func__, __LINE__);
2970
2971 return 0;
2972}
2973
2974/**
dd57f970 2975 * vxge_get_stats64
703da5a1 2976 * @dev: pointer to the device structure
dd57f970 2977 * @stats: pointer to struct rtnl_link_stats64
703da5a1 2978 *
703da5a1 2979 */
dd57f970
ED		 2980static struct rtnl_link_stats64 *
2981vxge_get_stats64(struct net_device *dev, struct rtnl_link_stats64 *net_stats)
703da5a1 2982{
dd57f970 2983 struct vxgedev *vdev = netdev_priv(dev);
703da5a1
RV		 2984 int k;
2985
dd57f970 2986 /* net_stats already zeroed by caller */
703da5a1
RV		 2987 for (k = 0; k < vdev->no_of_vpath; k++) {
2988 net_stats->rx_packets += vdev->vpaths[k].ring.stats.rx_frms;
2989 net_stats->rx_bytes += vdev->vpaths[k].ring.stats.rx_bytes;
2990 net_stats->rx_errors += vdev->vpaths[k].ring.stats.rx_errors;
2991 net_stats->multicast += vdev->vpaths[k].ring.stats.rx_mcast;
2992 net_stats->rx_dropped +=
2993 vdev->vpaths[k].ring.stats.rx_dropped;
2994
2995 net_stats->tx_packets += vdev->vpaths[k].fifo.stats.tx_frms;
2996 net_stats->tx_bytes += vdev->vpaths[k].fifo.stats.tx_bytes;
2997 net_stats->tx_errors += vdev->vpaths[k].fifo.stats.tx_errors;
2998 }
2999
3000 return net_stats;
3001}
3002
b81b3733
JM		 3003static enum vxge_hw_status vxge_timestamp_config(struct vxgedev *vdev,
3004 int enable)
3005{
3006 enum vxge_hw_status status;
3007 u64 val64;
3008
3009 /* Timestamp is passed to the driver via the FCS, therefore we
3010 * must disable the FCS stripping by the adapter. Since this is
3011 * required for the driver to load (due to a hardware bug),
3012 * there is no need to do anything special here.
3013 */
3014 if (enable)
3015 val64 = VXGE_HW_XMAC_TIMESTAMP_EN |
3016 VXGE_HW_XMAC_TIMESTAMP_USE_LINK_ID(0) |
3017 VXGE_HW_XMAC_TIMESTAMP_INTERVAL(0);
3018 else
3019 val64 = 0;
3020
3021 status = vxge_hw_mgmt_reg_write(vdev->devh,
3022 vxge_hw_mgmt_reg_type_mrpcim,
3023 0,
3024 offsetof(struct vxge_hw_mrpcim_reg,
3025 xmac_timestamp),
3026 val64);
3027 vxge_hw_device_flush_io(vdev->devh);
3028 return status;
3029}
3030
3031static int vxge_hwtstamp_ioctl(struct vxgedev *vdev, void __user *data)
3032{
3033 struct hwtstamp_config config;
3034 enum vxge_hw_status status;
3035 int i;
3036
3037 if (copy_from_user(&config, data, sizeof(config)))
3038 return -EFAULT;
3039
3040 /* reserved for future extensions */
3041 if (config.flags)
3042 return -EINVAL;
3043
3044 /* Transmit HW Timestamp not supported */
3045 switch (config.tx_type) {
3046 case HWTSTAMP_TX_OFF:
3047 break;
3048 case HWTSTAMP_TX_ON:
3049 default:
3050 return -ERANGE;
3051 }
3052
3053 switch (config.rx_filter) {
3054 case HWTSTAMP_FILTER_NONE:
3055 status = vxge_timestamp_config(vdev, 0);
3056 if (status != VXGE_HW_OK)
3057 return -EFAULT;
3058
3059 vdev->rx_hwts = 0;
3060 config.rx_filter = HWTSTAMP_FILTER_NONE;
3061 break;
3062
3063 case HWTSTAMP_FILTER_ALL:
3064 case HWTSTAMP_FILTER_SOME:
3065 case HWTSTAMP_FILTER_PTP_V1_L4_EVENT:
3066 case HWTSTAMP_FILTER_PTP_V1_L4_SYNC:
3067 case HWTSTAMP_FILTER_PTP_V1_L4_DELAY_REQ:
3068 case HWTSTAMP_FILTER_PTP_V2_L4_EVENT:
3069 case HWTSTAMP_FILTER_PTP_V2_L4_SYNC:
3070 case HWTSTAMP_FILTER_PTP_V2_L4_DELAY_REQ:
3071 case HWTSTAMP_FILTER_PTP_V2_L2_EVENT:
3072 case HWTSTAMP_FILTER_PTP_V2_L2_SYNC:
3073 case HWTSTAMP_FILTER_PTP_V2_L2_DELAY_REQ:
3074 case HWTSTAMP_FILTER_PTP_V2_EVENT:
3075 case HWTSTAMP_FILTER_PTP_V2_SYNC:
3076 case HWTSTAMP_FILTER_PTP_V2_DELAY_REQ:
3077 status = vxge_timestamp_config(vdev, 1);
3078 if (status != VXGE_HW_OK)
3079 return -EFAULT;
3080
3081 vdev->rx_hwts = 1;
3082 config.rx_filter = HWTSTAMP_FILTER_ALL;
3083 break;
3084
3085 default:
3086 return -ERANGE;
3087 }
3088
3089 for (i = 0; i < vdev->no_of_vpath; i++)
3090 vdev->vpaths[i].ring.rx_hwts = vdev->rx_hwts;
3091
3092 if (copy_to_user(data, &config, sizeof(config)))
3093 return -EFAULT;
3094
3095 return 0;
3096}
3097
703da5a1
RV		 3098/**
3099 * vxge_ioctl
3100 * @dev: Device pointer.
3101 * @ifr: An IOCTL specific structure, that can contain a pointer to
3102 * a proprietary structure used to pass information to the driver.
3103 * @cmd: This is used to distinguish between the different commands that
3104 * can be passed to the IOCTL functions.
3105 *
3106 * Entry point for the Ioctl.
3107 */
3108static int vxge_ioctl(struct net_device *dev, struct ifreq *rq, int cmd)
3109{
b81b3733
JM		 3110 struct vxgedev *vdev = netdev_priv(dev);
3111 int ret;
3112
3113 switch (cmd) {
3114 case SIOCSHWTSTAMP:
3115 ret = vxge_hwtstamp_ioctl(vdev, rq->ifr_data);
3116 if (ret)
3117 return ret;
3118 break;
3119 default:
3120 return -EOPNOTSUPP;
3121 }
3122
3123 return 0;
703da5a1
RV		 3124}
3125
3126/**
3127 * vxge_tx_watchdog
3128 * @dev: pointer to net device structure
3129 *
3130 * Watchdog for transmit side.
3131 * This function is triggered if the Tx Queue is stopped
3132 * for a pre-defined amount of time when the Interface is still up.
3133 */
3134static void
3135vxge_tx_watchdog(struct net_device *dev)
3136{
3137 struct vxgedev *vdev;
3138
3139 vxge_debug_entryexit(VXGE_TRACE, "%s:%d", __func__, __LINE__);
3140
5f54cebb 3141 vdev = netdev_priv(dev);
703da5a1
RV		 3142
3143 vdev->cric_err_event = VXGE_HW_EVENT_RESET_START;
3144
3145 vxge_reset(vdev);
3146 vxge_debug_entryexit(VXGE_TRACE,
3147 "%s:%d Exiting...", __func__, __LINE__);
3148}
3149
3150/**
3151 * vxge_vlan_rx_register
3152 * @dev: net device pointer.
3153 * @grp: vlan group
3154 *
3155 * Vlan group registration
3156 */
3157static void
3158vxge_vlan_rx_register(struct net_device *dev, struct vlan_group *grp)
3159{
3160 struct vxgedev *vdev;
3161 struct vxge_vpath *vpath;
3162 int vp;
3163 u64 vid;
3164 enum vxge_hw_status status;
3165 int i;
3166
3167 vxge_debug_entryexit(VXGE_TRACE, "%s:%d", __func__, __LINE__);
3168
5f54cebb 3169 vdev = netdev_priv(dev);
703da5a1
RV		 3170
3171 vpath = &vdev->vpaths[0];
3172 if ((NULL == grp) && (vpath->is_open)) {
3173 /* Get the first vlan */
3174 status = vxge_hw_vpath_vid_get(vpath->handle, &vid);
3175
3176 while (status == VXGE_HW_OK) {
3177
3178 /* Delete this vlan from the vid table */
3179 for (vp = 0; vp < vdev->no_of_vpath; vp++) {
3180 vpath = &vdev->vpaths[vp];
3181 if (!vpath->is_open)
3182 continue;
3183
3184 vxge_hw_vpath_vid_delete(vpath->handle, vid);
3185 }
3186
3187 /* Get the next vlan to be deleted */
3188 vpath = &vdev->vpaths[0];
3189 status = vxge_hw_vpath_vid_get(vpath->handle, &vid);
3190 }
3191 }
3192
3193 vdev->vlgrp = grp;
3194
3195 for (i = 0; i < vdev->no_of_vpath; i++) {
3196 if (vdev->vpaths[i].is_configured)
3197 vdev->vpaths[i].ring.vlgrp = grp;
3198 }
3199
3200 vxge_debug_entryexit(VXGE_TRACE,
3201 "%s:%d Exiting...", __func__, __LINE__);
3202}
3203
3204/**
3205 * vxge_vlan_rx_add_vid
3206 * @dev: net device pointer.
3207 * @vid: vid
3208 *
3209 * Add the vlan id to the devices vlan id table
3210 */
3211static void
3212vxge_vlan_rx_add_vid(struct net_device *dev, unsigned short vid)
3213{
3214 struct vxgedev *vdev;
3215 struct vxge_vpath *vpath;
3216 int vp_id;
3217
5f54cebb 3218 vdev = netdev_priv(dev);
703da5a1
RV		 3219
3220 /* Add these vlan to the vid table */
3221 for (vp_id = 0; vp_id < vdev->no_of_vpath; vp_id++) {
3222 vpath = &vdev->vpaths[vp_id];
3223 if (!vpath->is_open)
3224 continue;
3225 vxge_hw_vpath_vid_add(vpath->handle, vid);
3226 }
3227}
3228
3229/**
3230 * vxge_vlan_rx_add_vid
3231 * @dev: net device pointer.
3232 * @vid: vid
3233 *
3234 * Remove the vlan id from the device's vlan id table
3235 */
3236static void
3237vxge_vlan_rx_kill_vid(struct net_device *dev, unsigned short vid)
3238{
3239 struct vxgedev *vdev;
3240 struct vxge_vpath *vpath;
3241 int vp_id;
3242
3243 vxge_debug_entryexit(VXGE_TRACE, "%s:%d", __func__, __LINE__);
3244
5f54cebb 3245 vdev = netdev_priv(dev);
703da5a1
RV		 3246
3247 vlan_group_set_device(vdev->vlgrp, vid, NULL);
3248
3249 /* Delete this vlan from the vid table */
3250 for (vp_id = 0; vp_id < vdev->no_of_vpath; vp_id++) {
3251 vpath = &vdev->vpaths[vp_id];
3252 if (!vpath->is_open)
3253 continue;
3254 vxge_hw_vpath_vid_delete(vpath->handle, vid);
3255 }
3256 vxge_debug_entryexit(VXGE_TRACE,
3257 "%s:%d Exiting...", __func__, __LINE__);
3258}
3259
3260static const struct net_device_ops vxge_netdev_ops = {
3261 .ndo_open = vxge_open,
3262 .ndo_stop = vxge_close,
dd57f970 3263 .ndo_get_stats64 = vxge_get_stats64,
703da5a1
RV		 3264 .ndo_start_xmit = vxge_xmit,
3265 .ndo_validate_addr = eth_validate_addr,
3266 .ndo_set_multicast_list = vxge_set_multicast,
3267
3268 .ndo_do_ioctl = vxge_ioctl,
3269
3270 .ndo_set_mac_address = vxge_set_mac_addr,
3271 .ndo_change_mtu = vxge_change_mtu,
3272 .ndo_vlan_rx_register = vxge_vlan_rx_register,
3273 .ndo_vlan_rx_kill_vid = vxge_vlan_rx_kill_vid,
3274 .ndo_vlan_rx_add_vid = vxge_vlan_rx_add_vid,
3275
3276 .ndo_tx_timeout = vxge_tx_watchdog,
3277#ifdef CONFIG_NET_POLL_CONTROLLER
3278 .ndo_poll_controller = vxge_netpoll,
3279#endif
3280};
3281
e7935c96
JM		 3282static int __devinit vxge_device_revision(struct vxgedev *vdev)
3283{
3284 int ret;
3285 u8 revision;
3286
3287 ret = pci_read_config_byte(vdev->pdev, PCI_REVISION_ID, &revision);
3288 if (ret)
3289 return -EIO;
3290
3291 vdev->titan1 = (revision == VXGE_HW_TITAN1_PCI_REVISION);
3292 return 0;
3293}
3294
42821a5b 3295static int __devinit vxge_device_register(struct __vxge_hw_device *hldev,
3296 struct vxge_config *config,
3297 int high_dma, int no_of_vpath,
3298 struct vxgedev **vdev_out)
703da5a1
RV		 3299{
3300 struct net_device *ndev;
3301 enum vxge_hw_status status = VXGE_HW_OK;
3302 struct vxgedev *vdev;
98f45da2 3303 int ret = 0, no_of_queue = 1;
703da5a1
RV		 3304 u64 stat;
3305
3306 *vdev_out = NULL;
d03848e0 3307 if (config->tx_steering_type)
703da5a1
RV		 3308 no_of_queue = no_of_vpath;
3309
3310 ndev = alloc_etherdev_mq(sizeof(struct vxgedev),
3311 no_of_queue);
3312 if (ndev == NULL) {
3313 vxge_debug_init(
3314 vxge_hw_device_trace_level_get(hldev),
3315 "%s : device allocation failed", __func__);
3316 ret = -ENODEV;
3317 goto _out0;
3318 }
3319
3320 vxge_debug_entryexit(
3321 vxge_hw_device_trace_level_get(hldev),
3322 "%s: %s:%d Entering...",
3323 ndev->name, __func__, __LINE__);
3324
3325 vdev = netdev_priv(ndev);
3326 memset(vdev, 0, sizeof(struct vxgedev));
3327
3328 vdev->ndev = ndev;
3329 vdev->devh = hldev;
3330 vdev->pdev = hldev->pdev;
3331 memcpy(&vdev->config, config, sizeof(struct vxge_config));
3332 vdev->rx_csum = 1; /* Enable Rx CSUM by default. */
b81b3733 3333 vdev->rx_hwts = 0;
703da5a1 3334
e7935c96
JM		 3335 ret = vxge_device_revision(vdev);
3336 if (ret < 0)
3337 goto _out1;
3338
703da5a1
RV		 3339 SET_NETDEV_DEV(ndev, &vdev->pdev->dev);
3340
3341 ndev->features |= NETIF_F_HW_VLAN_TX | NETIF_F_HW_VLAN_RX |
3342 NETIF_F_HW_VLAN_FILTER;
3343 /* Driver entry points */
3344 ndev->irq = vdev->pdev->irq;
3345 ndev->base_addr = (unsigned long) hldev->bar0;
3346
3347 ndev->netdev_ops = &vxge_netdev_ops;
3348
3349 ndev->watchdog_timeo = VXGE_LL_WATCH_DOG_TIMEOUT;
3350
42821a5b 3351 vxge_initialize_ethtool_ops(ndev);
703da5a1 3352
47f01db4
JM		 3353 if (vdev->config.rth_steering != NO_STEERING) {
3354 ndev->features |= NETIF_F_RXHASH;
3355 hldev->config.rth_en = VXGE_HW_RTH_ENABLE;
3356 }
3357
703da5a1
RV		 3358 /* Allocate memory for vpath */
3359 vdev->vpaths = kzalloc((sizeof(struct vxge_vpath)) *
3360 no_of_vpath, GFP_KERNEL);
3361 if (!vdev->vpaths) {
3362 vxge_debug_init(VXGE_ERR,
3363 "%s: vpath memory allocation failed",
3364 vdev->ndev->name);
3365 ret = -ENODEV;
3366 goto _out1;
3367 }
3368
3369 ndev->features |= NETIF_F_SG;
3370
3371 ndev->features |= NETIF_F_HW_CSUM;
3372 vxge_debug_init(vxge_hw_device_trace_level_get(hldev),
3373 "%s : checksuming enabled", __func__);
3374
3375 if (high_dma) {
3376 ndev->features |= NETIF_F_HIGHDMA;
3377 vxge_debug_init(vxge_hw_device_trace_level_get(hldev),
3378 "%s : using High DMA", __func__);
3379 }
3380
3381 ndev->features |= NETIF_F_TSO | NETIF_F_TSO6;
3382
3383 if (vdev->config.gro_enable)
3384 ndev->features |= NETIF_F_GRO;
3385
703da5a1
RV		 3386 if (register_netdev(ndev)) {
3387 vxge_debug_init(vxge_hw_device_trace_level_get(hldev),
3388 "%s: %s : device registration failed!",
3389 ndev->name, __func__);
3390 ret = -ENODEV;
3391 goto _out2;
3392 }
3393
3394 /* Set the factory defined MAC address initially */
3395 ndev->addr_len = ETH_ALEN;
3396
3397 /* Make Link state as off at this point, when the Link change
3398 * interrupt comes the state will be automatically changed to
3399 * the right state.
3400 */
3401 netif_carrier_off(ndev);
3402
3403 vxge_debug_init(vxge_hw_device_trace_level_get(hldev),
3404 "%s: Ethernet device registered",
3405 ndev->name);
3406
e8ac1756 3407 hldev->ndev = ndev;
703da5a1
RV		 3408 *vdev_out = vdev;
3409
3410 /* Resetting the Device stats */
3411 status = vxge_hw_mrpcim_stats_access(
3412 hldev,
3413 VXGE_HW_STATS_OP_CLEAR_ALL_STATS,
3414 0,
3415 0,
3416 &stat);
3417
3418 if (status == VXGE_HW_ERR_PRIVILAGED_OPEARATION)
3419 vxge_debug_init(
3420 vxge_hw_device_trace_level_get(hldev),
3421 "%s: device stats clear returns"
3422 "VXGE_HW_ERR_PRIVILAGED_OPEARATION", ndev->name);
3423
3424 vxge_debug_entryexit(vxge_hw_device_trace_level_get(hldev),
3425 "%s: %s:%d Exiting...",
3426 ndev->name, __func__, __LINE__);
3427
3428 return ret;
3429_out2:
3430 kfree(vdev->vpaths);
3431_out1:
3432 free_netdev(ndev);
3433_out0:
3434 return ret;
3435}
3436
3437/*
3438 * vxge_device_unregister
3439 *
3440 * This function will unregister and free network device
3441 */
2c91308f 3442static void vxge_device_unregister(struct __vxge_hw_device *hldev)
703da5a1
RV		 3443{
3444 struct vxgedev *vdev;
3445 struct net_device *dev;
3446 char buf[IFNAMSIZ];
703da5a1
RV		 3447
3448 dev = hldev->ndev;
3449 vdev = netdev_priv(dev);
703da5a1 3450
2c91308f
JM		 3451 vxge_debug_entryexit(vdev->level_trace, "%s: %s:%d", vdev->ndev->name,
3452 __func__, __LINE__);
3453
3454 memcpy(buf, dev->name, IFNAMSIZ);
703da5a1
RV		 3455
3456 /* in 2.6 will call stop() if device is up */
3457 unregister_netdev(dev);
3458
3459 flush_scheduled_work();
3460
2c91308f
JM		 3461 vxge_debug_init(vdev->level_trace, "%s: ethernet device unregistered",
3462 buf);
3463 vxge_debug_entryexit(vdev->level_trace, "%s: %s:%d Exiting...", buf,
3464 __func__, __LINE__);
703da5a1
RV		 3465}
3466
3467/*
3468 * vxge_callback_crit_err
3469 *
3470 * This function is called by the alarm handler in interrupt context.
3471 * Driver must analyze it based on the event type.
3472 */
3473static void
3474vxge_callback_crit_err(struct __vxge_hw_device *hldev,
3475 enum vxge_hw_event type, u64 vp_id)
3476{
3477 struct net_device *dev = hldev->ndev;
5f54cebb 3478 struct vxgedev *vdev = netdev_priv(dev);
98f45da2 3479 struct vxge_vpath *vpath = NULL;
703da5a1
RV		 3480 int vpath_idx;
3481
3482 vxge_debug_entryexit(vdev->level_trace,
3483 "%s: %s:%d", vdev->ndev->name, __func__, __LINE__);
3484
3485 /* Note: This event type should be used for device wide
3486 * indications only - Serious errors, Slot freeze and critical errors
3487 */
3488 vdev->cric_err_event = type;
3489
98f45da2
JM		 3490 for (vpath_idx = 0; vpath_idx < vdev->no_of_vpath; vpath_idx++) {
3491 vpath = &vdev->vpaths[vpath_idx];
3492 if (vpath->device_id == vp_id)
703da5a1 3493 break;
98f45da2 3494 }
703da5a1
RV		 3495
3496 if (!test_bit(__VXGE_STATE_RESET_CARD, &vdev->state)) {
3497 if (type == VXGE_HW_EVENT_SLOT_FREEZE) {
3498 vxge_debug_init(VXGE_ERR,
3499 "%s: Slot is frozen", vdev->ndev->name);
3500 } else if (type == VXGE_HW_EVENT_SERR) {
3501 vxge_debug_init(VXGE_ERR,
3502 "%s: Encountered Serious Error",
3503 vdev->ndev->name);
3504 } else if (type == VXGE_HW_EVENT_CRITICAL_ERR)
3505 vxge_debug_init(VXGE_ERR,
3506 "%s: Encountered Critical Error",
3507 vdev->ndev->name);
3508 }
3509
3510 if ((type == VXGE_HW_EVENT_SERR) ||
3511 (type == VXGE_HW_EVENT_SLOT_FREEZE)) {
3512 if (unlikely(vdev->exec_mode))
3513 clear_bit(__VXGE_STATE_CARD_UP, &vdev->state);
3514 } else if (type == VXGE_HW_EVENT_CRITICAL_ERR) {
3515 vxge_hw_device_mask_all(hldev);
3516 if (unlikely(vdev->exec_mode))
3517 clear_bit(__VXGE_STATE_CARD_UP, &vdev->state);
3518 } else if ((type == VXGE_HW_EVENT_FIFO_ERR) ||
3519 (type == VXGE_HW_EVENT_VPATH_ERR)) {
3520
3521 if (unlikely(vdev->exec_mode))
3522 clear_bit(__VXGE_STATE_CARD_UP, &vdev->state);
3523 else {
3524 /* check if this vpath is already set for reset */
3525 if (!test_and_set_bit(vpath_idx, &vdev->vp_reset)) {
3526
3527 /* disable interrupts for this vpath */
3528 vxge_vpath_intr_disable(vdev, vpath_idx);
3529
3530 /* stop the queue for this vpath */
98f45da2 3531 netif_tx_stop_queue(vpath->fifo.txq);
703da5a1
RV		 3532 }
3533 }
3534 }
3535
3536 vxge_debug_entryexit(vdev->level_trace,
3537 "%s: %s:%d Exiting...",
3538 vdev->ndev->name, __func__, __LINE__);
3539}
3540
3541static void verify_bandwidth(void)
3542{
3543 int i, band_width, total = 0, equal_priority = 0;
3544
3545 /* 1. If user enters 0 for some fifo, give equal priority to all */
3546 for (i = 0; i < VXGE_HW_MAX_VIRTUAL_PATHS; i++) {
3547 if (bw_percentage[i] == 0) {
3548 equal_priority = 1;
3549 break;
3550 }
3551 }
3552
3553 if (!equal_priority) {
3554 /* 2. If sum exceeds 100, give equal priority to all */
3555 for (i = 0; i < VXGE_HW_MAX_VIRTUAL_PATHS; i++) {
3556 if (bw_percentage[i] == 0xFF)
3557 break;
3558
3559 total += bw_percentage[i];
3560 if (total > VXGE_HW_VPATH_BANDWIDTH_MAX) {
3561 equal_priority = 1;
3562 break;
3563 }
3564 }
3565 }
3566
3567 if (!equal_priority) {
3568 /* Is all the bandwidth consumed? */
3569 if (total < VXGE_HW_VPATH_BANDWIDTH_MAX) {
3570 if (i < VXGE_HW_MAX_VIRTUAL_PATHS) {
3571 /* Split rest of bw equally among next VPs*/
3572 band_width =
3573 (VXGE_HW_VPATH_BANDWIDTH_MAX - total) /
3574 (VXGE_HW_MAX_VIRTUAL_PATHS - i);
3575 if (band_width < 2) /* min of 2% */
3576 equal_priority = 1;
3577 else {
3578 for (; i < VXGE_HW_MAX_VIRTUAL_PATHS;
3579 i++)
3580 bw_percentage[i] =
3581 band_width;
3582 }
3583 }
3584 } else if (i < VXGE_HW_MAX_VIRTUAL_PATHS)
3585 equal_priority = 1;
3586 }
3587
3588 if (equal_priority) {
3589 vxge_debug_init(VXGE_ERR,
3590 "%s: Assigning equal bandwidth to all the vpaths",
3591 VXGE_DRIVER_NAME);
3592 bw_percentage[0] = VXGE_HW_VPATH_BANDWIDTH_MAX /
3593 VXGE_HW_MAX_VIRTUAL_PATHS;
3594 for (i = 1; i < VXGE_HW_MAX_VIRTUAL_PATHS; i++)
3595 bw_percentage[i] = bw_percentage[0];
3596 }
703da5a1
RV		 3597}
3598
3599/*
3600 * Vpath configuration
3601 */
3602static int __devinit vxge_config_vpaths(
3603 struct vxge_hw_device_config *device_config,
3604 u64 vpath_mask, struct vxge_config *config_param)
3605{
3606 int i, no_of_vpaths = 0, default_no_vpath = 0, temp;
3607 u32 txdl_size, txdl_per_memblock;
3608
3609 temp = driver_config->vpath_per_dev;
3610 if ((driver_config->vpath_per_dev == VXGE_USE_DEFAULT) &&
3611 (max_config_dev == VXGE_MAX_CONFIG_DEV)) {
3612 /* No more CPU. Return vpath number as zero.*/
3613 if (driver_config->g_no_cpus == -1)
3614 return 0;
3615
3616 if (!driver_config->g_no_cpus)
3617 driver_config->g_no_cpus = num_online_cpus();
3618
3619 driver_config->vpath_per_dev = driver_config->g_no_cpus >> 1;
3620 if (!driver_config->vpath_per_dev)
3621 driver_config->vpath_per_dev = 1;
3622
3623 for (i = 0; i < VXGE_HW_MAX_VIRTUAL_PATHS; i++)
3624 if (!vxge_bVALn(vpath_mask, i, 1))
3625 continue;
3626 else
3627 default_no_vpath++;
3628 if (default_no_vpath < driver_config->vpath_per_dev)
3629 driver_config->vpath_per_dev = default_no_vpath;
3630
3631 driver_config->g_no_cpus = driver_config->g_no_cpus -
3632 (driver_config->vpath_per_dev * 2);
3633 if (driver_config->g_no_cpus <= 0)
3634 driver_config->g_no_cpus = -1;
3635 }
3636
3637 if (driver_config->vpath_per_dev == 1) {
3638 vxge_debug_ll_config(VXGE_TRACE,
3639 "%s: Disable tx and rx steering, "
3640 "as single vpath is configured", VXGE_DRIVER_NAME);
3641 config_param->rth_steering = NO_STEERING;
3642 config_param->tx_steering_type = NO_STEERING;
3643 device_config->rth_en = 0;
3644 }
3645
3646 /* configure bandwidth */
3647 for (i = 0; i < VXGE_HW_MAX_VIRTUAL_PATHS; i++)
3648 device_config->vp_config[i].min_bandwidth = bw_percentage[i];
3649
3650 for (i = 0; i < VXGE_HW_MAX_VIRTUAL_PATHS; i++) {
3651 device_config->vp_config[i].vp_id = i;
3652 device_config->vp_config[i].mtu = VXGE_HW_DEFAULT_MTU;
3653 if (no_of_vpaths < driver_config->vpath_per_dev) {
3654 if (!vxge_bVALn(vpath_mask, i, 1)) {
3655 vxge_debug_ll_config(VXGE_TRACE,
3656 "%s: vpath: %d is not available",
3657 VXGE_DRIVER_NAME, i);
3658 continue;
3659 } else {
3660 vxge_debug_ll_config(VXGE_TRACE,
3661 "%s: vpath: %d available",
3662 VXGE_DRIVER_NAME, i);
3663 no_of_vpaths++;
3664 }
3665 } else {
3666 vxge_debug_ll_config(VXGE_TRACE,
3667 "%s: vpath: %d is not configured, "
3668 "max_config_vpath exceeded",
3669 VXGE_DRIVER_NAME, i);
3670 break;
3671 }
3672
3673 /* Configure Tx fifo's */
3674 device_config->vp_config[i].fifo.enable =
3675 VXGE_HW_FIFO_ENABLE;
3676 device_config->vp_config[i].fifo.max_frags =
5beefb4f 3677 MAX_SKB_FRAGS + 1;
703da5a1
RV		 3678 device_config->vp_config[i].fifo.memblock_size =
3679 VXGE_HW_MIN_FIFO_MEMBLOCK_SIZE;
3680
5beefb4f
SH		 3681 txdl_size = device_config->vp_config[i].fifo.max_frags *
3682 sizeof(struct vxge_hw_fifo_txd);
703da5a1
RV		 3683 txdl_per_memblock = VXGE_HW_MIN_FIFO_MEMBLOCK_SIZE / txdl_size;
3684
3685 device_config->vp_config[i].fifo.fifo_blocks =
3686 ((VXGE_DEF_FIFO_LENGTH - 1) / txdl_per_memblock) + 1;
3687
3688 device_config->vp_config[i].fifo.intr =
3689 VXGE_HW_FIFO_QUEUE_INTR_DISABLE;
3690
3691 /* Configure tti properties */
3692 device_config->vp_config[i].tti.intr_enable =
3693 VXGE_HW_TIM_INTR_ENABLE;
3694
3695 device_config->vp_config[i].tti.btimer_val =
3696 (VXGE_TTI_BTIMER_VAL * 1000) / 272;
3697
3698 device_config->vp_config[i].tti.timer_ac_en =
3699 VXGE_HW_TIM_TIMER_AC_ENABLE;
3700
3701 /* For msi-x with napi (each vector
3702 has a handler of its own) -
3703 Set CI to OFF for all vpaths */
3704 device_config->vp_config[i].tti.timer_ci_en =
3705 VXGE_HW_TIM_TIMER_CI_DISABLE;
3706
3707 device_config->vp_config[i].tti.timer_ri_en =
3708 VXGE_HW_TIM_TIMER_RI_DISABLE;
3709
3710 device_config->vp_config[i].tti.util_sel =
3711 VXGE_HW_TIM_UTIL_SEL_LEGACY_TX_NET_UTIL;
3712
3713 device_config->vp_config[i].tti.ltimer_val =
3714 (VXGE_TTI_LTIMER_VAL * 1000) / 272;
3715
3716 device_config->vp_config[i].tti.rtimer_val =
3717 (VXGE_TTI_RTIMER_VAL * 1000) / 272;
3718
3719 device_config->vp_config[i].tti.urange_a = TTI_TX_URANGE_A;
3720 device_config->vp_config[i].tti.urange_b = TTI_TX_URANGE_B;
3721 device_config->vp_config[i].tti.urange_c = TTI_TX_URANGE_C;
3722 device_config->vp_config[i].tti.uec_a = TTI_TX_UFC_A;
3723 device_config->vp_config[i].tti.uec_b = TTI_TX_UFC_B;
3724 device_config->vp_config[i].tti.uec_c = TTI_TX_UFC_C;
3725 device_config->vp_config[i].tti.uec_d = TTI_TX_UFC_D;
3726
3727 /* Configure Rx rings */
3728 device_config->vp_config[i].ring.enable =
3729 VXGE_HW_RING_ENABLE;
3730
3731 device_config->vp_config[i].ring.ring_blocks =
3732 VXGE_HW_DEF_RING_BLOCKS;
3733 device_config->vp_config[i].ring.buffer_mode =
3734 VXGE_HW_RING_RXD_BUFFER_MODE_1;
3735 device_config->vp_config[i].ring.rxds_limit =
3736 VXGE_HW_DEF_RING_RXDS_LIMIT;
3737 device_config->vp_config[i].ring.scatter_mode =
3738 VXGE_HW_RING_SCATTER_MODE_A;
3739
3740 /* Configure rti properties */
3741 device_config->vp_config[i].rti.intr_enable =
3742 VXGE_HW_TIM_INTR_ENABLE;
3743
3744 device_config->vp_config[i].rti.btimer_val =
3745 (VXGE_RTI_BTIMER_VAL * 1000)/272;
3746
3747 device_config->vp_config[i].rti.timer_ac_en =
3748 VXGE_HW_TIM_TIMER_AC_ENABLE;
3749
3750 device_config->vp_config[i].rti.timer_ci_en =
3751 VXGE_HW_TIM_TIMER_CI_DISABLE;
3752
3753 device_config->vp_config[i].rti.timer_ri_en =
3754 VXGE_HW_TIM_TIMER_RI_DISABLE;
3755
3756 device_config->vp_config[i].rti.util_sel =
3757 VXGE_HW_TIM_UTIL_SEL_LEGACY_RX_NET_UTIL;
3758
3759 device_config->vp_config[i].rti.urange_a =
3760 RTI_RX_URANGE_A;
3761 device_config->vp_config[i].rti.urange_b =
3762 RTI_RX_URANGE_B;
3763 device_config->vp_config[i].rti.urange_c =
3764 RTI_RX_URANGE_C;
3765 device_config->vp_config[i].rti.uec_a = RTI_RX_UFC_A;
3766 device_config->vp_config[i].rti.uec_b = RTI_RX_UFC_B;
3767 device_config->vp_config[i].rti.uec_c = RTI_RX_UFC_C;
3768 device_config->vp_config[i].rti.uec_d = RTI_RX_UFC_D;
3769
3770 device_config->vp_config[i].rti.rtimer_val =
3771 (VXGE_RTI_RTIMER_VAL * 1000) / 272;
3772
3773 device_config->vp_config[i].rti.ltimer_val =
3774 (VXGE_RTI_LTIMER_VAL * 1000) / 272;
3775
3776 device_config->vp_config[i].rpa_strip_vlan_tag =
3777 vlan_tag_strip;
3778 }
3779
3780 driver_config->vpath_per_dev = temp;
3781 return no_of_vpaths;
3782}
3783
3784/* initialize device configuratrions */
3785static void __devinit vxge_device_config_init(
3786 struct vxge_hw_device_config *device_config,
3787 int *intr_type)
3788{
3789 /* Used for CQRQ/SRQ. */
3790 device_config->dma_blockpool_initial =
3791 VXGE_HW_INITIAL_DMA_BLOCK_POOL_SIZE;
3792
3793 device_config->dma_blockpool_max =
3794 VXGE_HW_MAX_DMA_BLOCK_POOL_SIZE;
3795
3796 if (max_mac_vpath > VXGE_MAX_MAC_ADDR_COUNT)
3797 max_mac_vpath = VXGE_MAX_MAC_ADDR_COUNT;
3798
3799#ifndef CONFIG_PCI_MSI
3800 vxge_debug_init(VXGE_ERR,
3801 "%s: This Kernel does not support "
3802 "MSI-X. Defaulting to INTA", VXGE_DRIVER_NAME);
3803 *intr_type = INTA;
3804#endif
3805
3806 /* Configure whether MSI-X or IRQL. */
3807 switch (*intr_type) {
3808 case INTA:
3809 device_config->intr_mode = VXGE_HW_INTR_MODE_IRQLINE;
3810 break;
3811
3812 case MSI_X:
3813 device_config->intr_mode = VXGE_HW_INTR_MODE_MSIX;
3814 break;
3815 }
3816 /* Timer period between device poll */
3817 device_config->device_poll_millis = VXGE_TIMER_DELAY;
3818
3819 /* Configure mac based steering. */
3820 device_config->rts_mac_en = addr_learn_en;
3821
3822 /* Configure Vpaths */
3823 device_config->rth_it_type = VXGE_HW_RTH_IT_TYPE_MULTI_IT;
3824
3825 vxge_debug_ll_config(VXGE_TRACE, "%s : Device Config Params ",
3826 __func__);
3827 vxge_debug_ll_config(VXGE_TRACE, "dma_blockpool_initial : %d",
3828 device_config->dma_blockpool_initial);
3829 vxge_debug_ll_config(VXGE_TRACE, "dma_blockpool_max : %d",
3830 device_config->dma_blockpool_max);
3831 vxge_debug_ll_config(VXGE_TRACE, "intr_mode : %d",
3832 device_config->intr_mode);
3833 vxge_debug_ll_config(VXGE_TRACE, "device_poll_millis : %d",
3834 device_config->device_poll_millis);
3835 vxge_debug_ll_config(VXGE_TRACE, "rts_mac_en : %d",
3836 device_config->rts_mac_en);
3837 vxge_debug_ll_config(VXGE_TRACE, "rth_en : %d",
3838 device_config->rth_en);
3839 vxge_debug_ll_config(VXGE_TRACE, "rth_it_type : %d",
3840 device_config->rth_it_type);
3841}
3842
3843static void __devinit vxge_print_parm(struct vxgedev *vdev, u64 vpath_mask)
3844{
3845 int i;
3846
3847 vxge_debug_init(VXGE_TRACE,
3848 "%s: %d Vpath(s) opened",
3849 vdev->ndev->name, vdev->no_of_vpath);
3850
3851 switch (vdev->config.intr_type) {
3852 case INTA:
3853 vxge_debug_init(VXGE_TRACE,
3854 "%s: Interrupt type INTA", vdev->ndev->name);
3855 break;
3856
3857 case MSI_X:
3858 vxge_debug_init(VXGE_TRACE,
3859 "%s: Interrupt type MSI-X", vdev->ndev->name);
3860 break;
3861 }
3862
3863 if (vdev->config.rth_steering) {
3864 vxge_debug_init(VXGE_TRACE,
3865 "%s: RTH steering enabled for TCP_IPV4",
3866 vdev->ndev->name);
3867 } else {
3868 vxge_debug_init(VXGE_TRACE,
3869 "%s: RTH steering disabled", vdev->ndev->name);
3870 }
3871
3872 switch (vdev->config.tx_steering_type) {
3873 case NO_STEERING:
3874 vxge_debug_init(VXGE_TRACE,
3875 "%s: Tx steering disabled", vdev->ndev->name);
3876 break;
3877 case TX_PRIORITY_STEERING:
3878 vxge_debug_init(VXGE_TRACE,
3879 "%s: Unsupported tx steering option",
3880 vdev->ndev->name);
3881 vxge_debug_init(VXGE_TRACE,
3882 "%s: Tx steering disabled", vdev->ndev->name);
3883 vdev->config.tx_steering_type = 0;
3884 break;
3885 case TX_VLAN_STEERING:
3886 vxge_debug_init(VXGE_TRACE,
3887 "%s: Unsupported tx steering option",
3888 vdev->ndev->name);
3889 vxge_debug_init(VXGE_TRACE,
3890 "%s: Tx steering disabled", vdev->ndev->name);
3891 vdev->config.tx_steering_type = 0;
3892 break;
3893 case TX_MULTIQ_STEERING:
3894 vxge_debug_init(VXGE_TRACE,
3895 "%s: Tx multiqueue steering enabled",
3896 vdev->ndev->name);
3897 break;
3898 case TX_PORT_STEERING:
3899 vxge_debug_init(VXGE_TRACE,
3900 "%s: Tx port steering enabled",
3901 vdev->ndev->name);
3902 break;
3903 default:
3904 vxge_debug_init(VXGE_ERR,
3905 "%s: Unsupported tx steering type",
3906 vdev->ndev->name);
3907 vxge_debug_init(VXGE_TRACE,
3908 "%s: Tx steering disabled", vdev->ndev->name);
3909 vdev->config.tx_steering_type = 0;
3910 }
3911
3912 if (vdev->config.gro_enable) {
3913 vxge_debug_init(VXGE_ERR,
3914 "%s: Generic receive offload enabled",
3915 vdev->ndev->name);
3916 } else
3917 vxge_debug_init(VXGE_TRACE,
3918 "%s: Generic receive offload disabled",
3919 vdev->ndev->name);
3920
3921 if (vdev->config.addr_learn_en)
3922 vxge_debug_init(VXGE_TRACE,
3923 "%s: MAC Address learning enabled", vdev->ndev->name);
3924
3925 vxge_debug_init(VXGE_TRACE,
3926 "%s: Rx doorbell mode enabled", vdev->ndev->name);
3927
3928 for (i = 0; i < VXGE_HW_MAX_VIRTUAL_PATHS; i++) {
3929 if (!vxge_bVALn(vpath_mask, i, 1))
3930 continue;
3931 vxge_debug_ll_config(VXGE_TRACE,
3932 "%s: MTU size - %d", vdev->ndev->name,
3933 ((struct __vxge_hw_device *)(vdev->devh))->
3934 config.vp_config[i].mtu);
3935 vxge_debug_init(VXGE_TRACE,
3936 "%s: VLAN tag stripping %s", vdev->ndev->name,
3937 ((struct __vxge_hw_device *)(vdev->devh))->
3938 config.vp_config[i].rpa_strip_vlan_tag
3939 ? "Enabled" : "Disabled");
3940 vxge_debug_init(VXGE_TRACE,
3941 "%s: Ring blocks : %d", vdev->ndev->name,
3942 ((struct __vxge_hw_device *)(vdev->devh))->
3943 config.vp_config[i].ring.ring_blocks);
3944 vxge_debug_init(VXGE_TRACE,
3945 "%s: Fifo blocks : %d", vdev->ndev->name,
3946 ((struct __vxge_hw_device *)(vdev->devh))->
3947 config.vp_config[i].fifo.fifo_blocks);
3948 vxge_debug_ll_config(VXGE_TRACE,
3949 "%s: Max frags : %d", vdev->ndev->name,
3950 ((struct __vxge_hw_device *)(vdev->devh))->
3951 config.vp_config[i].fifo.max_frags);
3952 break;
3953 }
3954}
3955
3956#ifdef CONFIG_PM
3957/**
3958 * vxge_pm_suspend - vxge power management suspend entry point
3959 *
3960 */
3961static int vxge_pm_suspend(struct pci_dev *pdev, pm_message_t state)
3962{
3963 return -ENOSYS;
3964}
3965/**
3966 * vxge_pm_resume - vxge power management resume entry point
3967 *
3968 */
3969static int vxge_pm_resume(struct pci_dev *pdev)
3970{
3971 return -ENOSYS;
3972}
3973
3974#endif
3975
3976/**
3977 * vxge_io_error_detected - called when PCI error is detected
3978 * @pdev: Pointer to PCI device
3979 * @state: The current pci connection state
3980 *
3981 * This function is called after a PCI bus error affecting
3982 * this device has been detected.
3983 */
3984static pci_ers_result_t vxge_io_error_detected(struct pci_dev *pdev,
3985 pci_channel_state_t state)
3986{
d8ee7071 3987 struct __vxge_hw_device *hldev = pci_get_drvdata(pdev);
703da5a1
RV		 3988 struct net_device *netdev = hldev->ndev;
3989
3990 netif_device_detach(netdev);
3991
e33b992d
DN		 3992 if (state == pci_channel_io_perm_failure)
3993 return PCI_ERS_RESULT_DISCONNECT;
3994
703da5a1
RV		 3995 if (netif_running(netdev)) {
3996 /* Bring down the card, while avoiding PCI I/O */
3997 do_vxge_close(netdev, 0);
3998 }
3999
4000 pci_disable_device(pdev);
4001
4002 return PCI_ERS_RESULT_NEED_RESET;
4003}
4004
4005/**
4006 * vxge_io_slot_reset - called after the pci bus has been reset.
4007 * @pdev: Pointer to PCI device
4008 *
4009 * Restart the card from scratch, as if from a cold-boot.
4010 * At this point, the card has exprienced a hard reset,
4011 * followed by fixups by BIOS, and has its config space
4012 * set up identically to what it was at cold boot.
4013 */
4014static pci_ers_result_t vxge_io_slot_reset(struct pci_dev *pdev)
4015{
d8ee7071 4016 struct __vxge_hw_device *hldev = pci_get_drvdata(pdev);
703da5a1
RV		 4017 struct net_device *netdev = hldev->ndev;
4018
4019 struct vxgedev *vdev = netdev_priv(netdev);
4020
4021 if (pci_enable_device(pdev)) {
75f5e1c6 4022 netdev_err(netdev, "Cannot re-enable device after reset\n");
703da5a1
RV		 4023 return PCI_ERS_RESULT_DISCONNECT;
4024 }
4025
4026 pci_set_master(pdev);
4027 vxge_reset(vdev);
4028
4029 return PCI_ERS_RESULT_RECOVERED;
4030}
4031
4032/**
4033 * vxge_io_resume - called when traffic can start flowing again.
4034 * @pdev: Pointer to PCI device
4035 *
4036 * This callback is called when the error recovery driver tells
4037 * us that its OK to resume normal operation.
4038 */
4039static void vxge_io_resume(struct pci_dev *pdev)
4040{
d8ee7071 4041 struct __vxge_hw_device *hldev = pci_get_drvdata(pdev);
703da5a1
RV		 4042 struct net_device *netdev = hldev->ndev;
4043
4044 if (netif_running(netdev)) {
4045 if (vxge_open(netdev)) {
75f5e1c6
JP		 4046 netdev_err(netdev,
4047 "Can't bring device back up after reset\n");
703da5a1
RV		 4048 return;
4049 }
4050 }
4051
4052 netif_device_attach(netdev);
4053}
4054
cb27ec60
SH		 4055static inline u32 vxge_get_num_vfs(u64 function_mode)
4056{
4057 u32 num_functions = 0;
4058
4059 switch (function_mode) {
4060 case VXGE_HW_FUNCTION_MODE_MULTI_FUNCTION:
4061 case VXGE_HW_FUNCTION_MODE_SRIOV_8:
4062 num_functions = 8;
4063 break;
4064 case VXGE_HW_FUNCTION_MODE_SINGLE_FUNCTION:
4065 num_functions = 1;
4066 break;
4067 case VXGE_HW_FUNCTION_MODE_SRIOV:
4068 case VXGE_HW_FUNCTION_MODE_MRIOV:
4069 case VXGE_HW_FUNCTION_MODE_MULTI_FUNCTION_17:
4070 num_functions = 17;
4071 break;
4072 case VXGE_HW_FUNCTION_MODE_SRIOV_4:
4073 num_functions = 4;
4074 break;
4075 case VXGE_HW_FUNCTION_MODE_MULTI_FUNCTION_2:
4076 num_functions = 2;
4077 break;
4078 case VXGE_HW_FUNCTION_MODE_MRIOV_8:
4079 num_functions = 8; /* TODO */
4080 break;
4081 }
4082 return num_functions;
4083}
4084
e8ac1756
JM		 4085int vxge_fw_upgrade(struct vxgedev *vdev, char *fw_name, int override)
4086{
4087 struct __vxge_hw_device *hldev = vdev->devh;
4088 u32 maj, min, bld, cmaj, cmin, cbld;
4089 enum vxge_hw_status status;
4090 const struct firmware *fw;
4091 int ret;
4092
4093 ret = request_firmware(&fw, fw_name, &vdev->pdev->dev);
4094 if (ret) {
4095 vxge_debug_init(VXGE_ERR, "%s: Firmware file '%s' not found",
4096 VXGE_DRIVER_NAME, fw_name);
4097 goto out;
4098 }
4099
4100 /* Load the new firmware onto the adapter */
4101 status = vxge_update_fw_image(hldev, fw->data, fw->size);
4102 if (status != VXGE_HW_OK) {
4103 vxge_debug_init(VXGE_ERR,
4104 "%s: FW image download to adapter failed '%s'.",
4105 VXGE_DRIVER_NAME, fw_name);
4106 ret = -EIO;
4107 goto out;
4108 }
4109
4110 /* Read the version of the new firmware */
4111 status = vxge_hw_upgrade_read_version(hldev, &maj, &min, &bld);
4112 if (status != VXGE_HW_OK) {
4113 vxge_debug_init(VXGE_ERR,
4114 "%s: Upgrade read version failed '%s'.",
4115 VXGE_DRIVER_NAME, fw_name);
4116 ret = -EIO;
4117 goto out;
4118 }
4119
4120 cmaj = vdev->config.device_hw_info.fw_version.major;
4121 cmin = vdev->config.device_hw_info.fw_version.minor;
4122 cbld = vdev->config.device_hw_info.fw_version.build;
4123 /* It's possible the version in /lib/firmware is not the latest version.
4124 * If so, we could get into a loop of trying to upgrade to the latest
4125 * and flashing the older version.
4126 */
4127 if (VXGE_FW_VER(maj, min, bld) == VXGE_FW_VER(cmaj, cmin, cbld) &&
4128 !override) {
4129 ret = -EINVAL;
4130 goto out;
4131 }
4132
4133 printk(KERN_NOTICE "Upgrade to firmware version %d.%d.%d commencing\n",
4134 maj, min, bld);
4135
4136 /* Flash the adapter with the new firmware */
4137 status = vxge_hw_flash_fw(hldev);
4138 if (status != VXGE_HW_OK) {
4139 vxge_debug_init(VXGE_ERR, "%s: Upgrade commit failed '%s'.",
4140 VXGE_DRIVER_NAME, fw_name);
4141 ret = -EIO;
4142 goto out;
4143 }
4144
4145 printk(KERN_NOTICE "Upgrade of firmware successful! Adapter must be "
4146 "hard reset before using, thus requiring a system reboot or a "
4147 "hotplug event.\n");
4148
4149out:
4150 return ret;
4151}
4152
4153static int vxge_probe_fw_update(struct vxgedev *vdev)
4154{
4155 u32 maj, min, bld;
4156 int ret, gpxe = 0;
4157 char *fw_name;
4158
4159 maj = vdev->config.device_hw_info.fw_version.major;
4160 min = vdev->config.device_hw_info.fw_version.minor;
4161 bld = vdev->config.device_hw_info.fw_version.build;
4162
4163 if (VXGE_FW_VER(maj, min, bld) == VXGE_CERT_FW_VER)
4164 return 0;
4165
4166 /* Ignore the build number when determining if the current firmware is
4167 * "too new" to load the driver
4168 */
4169 if (VXGE_FW_VER(maj, min, 0) > VXGE_CERT_FW_VER) {
4170 vxge_debug_init(VXGE_ERR, "%s: Firmware newer than last known "
4171 "version, unable to load driver\n",
4172 VXGE_DRIVER_NAME);
4173 return -EINVAL;
4174 }
4175
4176 /* Firmware 1.4.4 and older cannot be upgraded, and is too ancient to
4177 * work with this driver.
4178 */
4179 if (VXGE_FW_VER(maj, min, bld) <= VXGE_FW_DEAD_VER) {
4180 vxge_debug_init(VXGE_ERR, "%s: Firmware %d.%d.%d cannot be "
4181 "upgraded\n", VXGE_DRIVER_NAME, maj, min, bld);
4182 return -EINVAL;
4183 }
4184
4185 /* If file not specified, determine gPXE or not */
4186 if (VXGE_FW_VER(maj, min, bld) >= VXGE_EPROM_FW_VER) {
4187 int i;
4188 for (i = 0; i < VXGE_HW_MAX_ROM_IMAGES; i++)
4189 if (vdev->devh->eprom_versions[i]) {
4190 gpxe = 1;
4191 break;
4192 }
4193 }
4194 if (gpxe)
4195 fw_name = "vxge/X3fw-pxe.ncf";
4196 else
4197 fw_name = "vxge/X3fw.ncf";
4198
4199 ret = vxge_fw_upgrade(vdev, fw_name, 0);
4200 /* -EINVAL and -ENOENT are not fatal errors for flashing firmware on
4201 * probe, so ignore them
4202 */
4203 if (ret != -EINVAL && ret != -ENOENT)
4204 return -EIO;
4205 else
4206 ret = 0;
4207
4208 if (VXGE_FW_VER(VXGE_CERT_FW_VER_MAJOR, VXGE_CERT_FW_VER_MINOR, 0) >
4209 VXGE_FW_VER(maj, min, 0)) {
4210 vxge_debug_init(VXGE_ERR, "%s: Firmware %d.%d.%d is too old to"
4211 " be used with this driver.\n"
4212 "Please get the latest version from "
4213 "ftp://ftp.s2io.com/pub/X3100-Drivers/FIRMWARE",
4214 VXGE_DRIVER_NAME, maj, min, bld);
4215 return -EINVAL;
4216 }
4217
4218 return ret;
4219}
4220
703da5a1
RV		 4221/**
4222 * vxge_probe
4223 * @pdev : structure containing the PCI related information of the device.
4224 * @pre: List of PCI devices supported by the driver listed in vxge_id_table.
4225 * Description:
4226 * This function is called when a new PCI device gets detected and initializes
4227 * it.
4228 * Return value:
4229 * returns 0 on success and negative on failure.
4230 *
4231 */
4232static int __devinit
4233vxge_probe(struct pci_dev *pdev, const struct pci_device_id *pre)
4234{
2c91308f 4235 struct __vxge_hw_device *hldev;
703da5a1
RV		 4236 enum vxge_hw_status status;
4237 int ret;
4238 int high_dma = 0;
4239 u64 vpath_mask = 0;
4240 struct vxgedev *vdev;
7dad171c 4241 struct vxge_config *ll_config = NULL;
703da5a1
RV		 4242 struct vxge_hw_device_config *device_config = NULL;
4243 struct vxge_hw_device_attr attr;
4244 int i, j, no_of_vpath = 0, max_vpath_supported = 0;
4245 u8 *macaddr;
4246 struct vxge_mac_addrs *entry;
4247 static int bus = -1, device = -1;
cb27ec60 4248 u32 host_type;
703da5a1 4249 u8 new_device = 0;
cb27ec60
SH		 4250 enum vxge_hw_status is_privileged;
4251 u32 function_mode;
4252 u32 num_vfs = 0;
703da5a1
RV		 4253
4254 vxge_debug_entryexit(VXGE_TRACE, "%s:%d", __func__, __LINE__);
4255 attr.pdev = pdev;
4256
cb27ec60
SH		 4257 /* In SRIOV-17 mode, functions of the same adapter
4258 * can be deployed on different buses */
4259 if ((!pdev->is_virtfn) && ((bus != pdev->bus->number) ||
4260 (device != PCI_SLOT(pdev->devfn))))
703da5a1
RV		 4261 new_device = 1;
4262
4263 bus = pdev->bus->number;
4264 device = PCI_SLOT(pdev->devfn);
4265
4266 if (new_device) {
4267 if (driver_config->config_dev_cnt &&
4268 (driver_config->config_dev_cnt !=
4269 driver_config->total_dev_cnt))
4270 vxge_debug_init(VXGE_ERR,
4271 "%s: Configured %d of %d devices",
4272 VXGE_DRIVER_NAME,
4273 driver_config->config_dev_cnt,
4274 driver_config->total_dev_cnt);
4275 driver_config->config_dev_cnt = 0;
4276 driver_config->total_dev_cnt = 0;
703da5a1 4277 }
9002397e
SH		 4278 /* Now making the CPU based no of vpath calculation
4279 * applicable for individual functions as well.
4280 */
4281 driver_config->g_no_cpus = 0;
657205bd
SH		 4282 driver_config->vpath_per_dev = max_config_vpath;
4283
703da5a1
RV		 4284 driver_config->total_dev_cnt++;
4285 if (++driver_config->config_dev_cnt > max_config_dev) {
4286 ret = 0;
4287 goto _exit0;
4288 }
4289
4290 device_config = kzalloc(sizeof(struct vxge_hw_device_config),
4291 GFP_KERNEL);
4292 if (!device_config) {
4293 ret = -ENOMEM;
4294 vxge_debug_init(VXGE_ERR,
4295 "device_config : malloc failed %s %d",
4296 __FILE__, __LINE__);
4297 goto _exit0;
4298 }
4299
7dad171c
PB		 4300 ll_config = kzalloc(sizeof(*ll_config), GFP_KERNEL);
4301 if (!ll_config) {
4302 ret = -ENOMEM;
4303 vxge_debug_init(VXGE_ERR,
4304 "ll_config : malloc failed %s %d",
4305 __FILE__, __LINE__);
4306 goto _exit0;
4307 }
4308 ll_config->tx_steering_type = TX_MULTIQ_STEERING;
4309 ll_config->intr_type = MSI_X;
4310 ll_config->napi_weight = NEW_NAPI_WEIGHT;
4311 ll_config->rth_steering = RTH_STEERING;
703da5a1
RV		 4312
4313 /* get the default configuration parameters */
4314 vxge_hw_device_config_default_get(device_config);
4315
4316 /* initialize configuration parameters */
7dad171c 4317 vxge_device_config_init(device_config, &ll_config->intr_type);
703da5a1
RV		 4318
4319 ret = pci_enable_device(pdev);
4320 if (ret) {
4321 vxge_debug_init(VXGE_ERR,
4322 "%s : can not enable PCI device", __func__);
4323 goto _exit0;
4324 }
4325
b3837cec 4326 if (!pci_set_dma_mask(pdev, DMA_BIT_MASK(64))) {
703da5a1
RV		 4327 vxge_debug_ll_config(VXGE_TRACE,
4328 "%s : using 64bit DMA", __func__);
4329
4330 high_dma = 1;
4331
4332 if (pci_set_consistent_dma_mask(pdev,
b3837cec 4333 DMA_BIT_MASK(64))) {
703da5a1
RV		 4334 vxge_debug_init(VXGE_ERR,
4335 "%s : unable to obtain 64bit DMA for "
4336 "consistent allocations", __func__);
4337 ret = -ENOMEM;
4338 goto _exit1;
4339 }
b3837cec 4340 } else if (!pci_set_dma_mask(pdev, DMA_BIT_MASK(32))) {
703da5a1
RV		 4341 vxge_debug_ll_config(VXGE_TRACE,
4342 "%s : using 32bit DMA", __func__);
4343 } else {
4344 ret = -ENOMEM;
4345 goto _exit1;
4346 }
4347
4348 if (pci_request_regions(pdev, VXGE_DRIVER_NAME)) {
4349 vxge_debug_init(VXGE_ERR,
4350 "%s : request regions failed", __func__);
4351 ret = -ENODEV;
4352 goto _exit1;
4353 }
4354
4355 pci_set_master(pdev);
4356
4357 attr.bar0 = pci_ioremap_bar(pdev, 0);
4358 if (!attr.bar0) {
4359 vxge_debug_init(VXGE_ERR,
4360 "%s : cannot remap io memory bar0", __func__);
4361 ret = -ENODEV;
4362 goto _exit2;
4363 }
4364 vxge_debug_ll_config(VXGE_TRACE,
4365 "pci ioremap bar0: %p:0x%llx",
4366 attr.bar0,
4367 (unsigned long long)pci_resource_start(pdev, 0));
4368
703da5a1 4369 status = vxge_hw_device_hw_info_get(attr.bar0,
7dad171c 4370 &ll_config->device_hw_info);
703da5a1
RV		 4371 if (status != VXGE_HW_OK) {
4372 vxge_debug_init(VXGE_ERR,
4373 "%s: Reading of hardware info failed."
4374 "Please try upgrading the firmware.", VXGE_DRIVER_NAME);
4375 ret = -EINVAL;
7975d1ee 4376 goto _exit3;
703da5a1
RV		 4377 }
4378
7dad171c 4379 vpath_mask = ll_config->device_hw_info.vpath_mask;
703da5a1
RV		 4380 if (vpath_mask == 0) {
4381 vxge_debug_ll_config(VXGE_TRACE,
4382 "%s: No vpaths available in device", VXGE_DRIVER_NAME);
4383 ret = -EINVAL;
7975d1ee 4384 goto _exit3;
703da5a1
RV		 4385 }
4386
4387 vxge_debug_ll_config(VXGE_TRACE,
4388 "%s:%d Vpath mask = %llx", __func__, __LINE__,
4389 (unsigned long long)vpath_mask);
4390
7dad171c
PB		 4391 function_mode = ll_config->device_hw_info.function_mode;
4392 host_type = ll_config->device_hw_info.host_type;
cb27ec60 4393 is_privileged = __vxge_hw_device_is_privilaged(host_type,
7dad171c 4394 ll_config->device_hw_info.func_id);
cb27ec60 4395
703da5a1
RV		 4396 /* Check how many vpaths are available */
4397 for (i = 0; i < VXGE_HW_MAX_VIRTUAL_PATHS; i++) {
4398 if (!((vpath_mask) & vxge_mBIT(i)))
4399 continue;
4400 max_vpath_supported++;
4401 }
4402
cb27ec60
SH		 4403 if (new_device)
4404 num_vfs = vxge_get_num_vfs(function_mode) - 1;
4405
5dbc9011 4406 /* Enable SRIOV mode, if firmware has SRIOV support and if it is a PF */
cb27ec60 4407 if (is_sriov(function_mode) && (max_config_dev > 1) &&
7dad171c 4408 (ll_config->intr_type != INTA) &&
cb27ec60
SH		 4409 (is_privileged == VXGE_HW_OK)) {
4410 ret = pci_enable_sriov(pdev, ((max_config_dev - 1) < num_vfs)
4411 ? (max_config_dev - 1) : num_vfs);
4412 if (ret)
4413 vxge_debug_ll_config(VXGE_ERR,
4414 "Failed in enabling SRIOV mode: %d\n", ret);
5dbc9011
SS		 4415 }
4416
703da5a1
RV		 4417 /*
4418 * Configure vpaths and get driver configured number of vpaths
4419 * which is less than or equal to the maximum vpaths per function.
4420 */
7dad171c 4421 no_of_vpath = vxge_config_vpaths(device_config, vpath_mask, ll_config);
703da5a1
RV		 4422 if (!no_of_vpath) {
4423 vxge_debug_ll_config(VXGE_ERR,
4424 "%s: No more vpaths to configure", VXGE_DRIVER_NAME);
4425 ret = 0;
7975d1ee 4426 goto _exit3;
703da5a1
RV		 4427 }
4428
4429 /* Setting driver callbacks */
4430 attr.uld_callbacks.link_up = vxge_callback_link_up;
4431 attr.uld_callbacks.link_down = vxge_callback_link_down;
4432 attr.uld_callbacks.crit_err = vxge_callback_crit_err;
4433
4434 status = vxge_hw_device_initialize(&hldev, &attr, device_config);
4435 if (status != VXGE_HW_OK) {
4436 vxge_debug_init(VXGE_ERR,
4437 "Failed to initialize device (%d)", status);
4438 ret = -EINVAL;
7975d1ee 4439 goto _exit3;
703da5a1
RV		 4440 }
4441
e8ac1756
JM		 4442 if (VXGE_FW_VER(ll_config->device_hw_info.fw_version.major,
4443 ll_config->device_hw_info.fw_version.minor,
4444 ll_config->device_hw_info.fw_version.build) >=
4445 VXGE_EPROM_FW_VER) {
4446 struct eprom_image img[VXGE_HW_MAX_ROM_IMAGES];
4447
4448 status = vxge_hw_vpath_eprom_img_ver_get(hldev, img);
4449 if (status != VXGE_HW_OK) {
4450 vxge_debug_init(VXGE_ERR, "%s: Reading of EPROM failed",
4451 VXGE_DRIVER_NAME);
4452 /* This is a non-fatal error, continue */
4453 }
4454
4455 for (i = 0; i < VXGE_HW_MAX_ROM_IMAGES; i++) {
4456 hldev->eprom_versions[i] = img[i].version;
4457 if (!img[i].is_valid)
4458 break;
4459 vxge_debug_init(VXGE_TRACE, "%s: EPROM %d, version "
4460 "%d.%d.%d.%d\n", VXGE_DRIVER_NAME, i,
4461 VXGE_EPROM_IMG_MAJOR(img[i].version),
4462 VXGE_EPROM_IMG_MINOR(img[i].version),
4463 VXGE_EPROM_IMG_FIX(img[i].version),
4464 VXGE_EPROM_IMG_BUILD(img[i].version));
4465 }
4466 }
4467
fa41fd10 4468 /* if FCS stripping is not disabled in MAC fail driver load */
b81b3733
JM		 4469 status = vxge_hw_vpath_strip_fcs_check(hldev, vpath_mask);
4470 if (status != VXGE_HW_OK) {
4471 vxge_debug_init(VXGE_ERR, "%s: FCS stripping is enabled in MAC"
4472 " failing driver load", VXGE_DRIVER_NAME);
fa41fd10
SH		 4473 ret = -EINVAL;
4474 goto _exit4;
4475 }
4476
703da5a1
RV		 4477 vxge_hw_device_debug_set(hldev, VXGE_ERR, VXGE_COMPONENT_LL);
4478
4479 /* set private device info */
4480 pci_set_drvdata(pdev, hldev);
4481
7dad171c
PB		 4482 ll_config->gro_enable = VXGE_GRO_ALWAYS_AGGREGATE;
4483 ll_config->fifo_indicate_max_pkts = VXGE_FIFO_INDICATE_MAX_PKTS;
4484 ll_config->addr_learn_en = addr_learn_en;
4485 ll_config->rth_algorithm = RTH_ALG_JENKINS;
47f01db4
JM		 4486 ll_config->rth_hash_type_tcpipv4 = 1;
4487 ll_config->rth_hash_type_ipv4 = 0;
4488 ll_config->rth_hash_type_tcpipv6 = 0;
4489 ll_config->rth_hash_type_ipv6 = 0;
4490 ll_config->rth_hash_type_tcpipv6ex = 0;
4491 ll_config->rth_hash_type_ipv6ex = 0;
7dad171c
PB		 4492 ll_config->rth_bkt_sz = RTH_BUCKET_SIZE;
4493 ll_config->tx_pause_enable = VXGE_PAUSE_CTRL_ENABLE;
4494 ll_config->rx_pause_enable = VXGE_PAUSE_CTRL_ENABLE;
4495
e8ac1756
JM		 4496 ret = vxge_device_register(hldev, ll_config, high_dma, no_of_vpath,
4497 &vdev);
4498 if (ret) {
703da5a1 4499 ret = -EINVAL;
7975d1ee 4500 goto _exit4;
703da5a1
RV		 4501 }
4502
e8ac1756
JM		 4503 ret = vxge_probe_fw_update(vdev);
4504 if (ret)
4505 goto _exit5;
4506
703da5a1
RV		 4507 vxge_hw_device_debug_set(hldev, VXGE_TRACE, VXGE_COMPONENT_LL);
4508 VXGE_COPY_DEBUG_INFO_TO_LL(vdev, vxge_hw_device_error_level_get(hldev),
4509 vxge_hw_device_trace_level_get(hldev));
4510
4511 /* set private HW device info */
703da5a1
RV		 4512 vdev->mtu = VXGE_HW_DEFAULT_MTU;
4513 vdev->bar0 = attr.bar0;
703da5a1
RV		 4514 vdev->max_vpath_supported = max_vpath_supported;
4515 vdev->no_of_vpath = no_of_vpath;
4516
4517 /* Virtual Path count */
4518 for (i = 0, j = 0; i < VXGE_HW_MAX_VIRTUAL_PATHS; i++) {
4519 if (!vxge_bVALn(vpath_mask, i, 1))
4520 continue;
4521 if (j >= vdev->no_of_vpath)
4522 break;
4523
4524 vdev->vpaths[j].is_configured = 1;
4525 vdev->vpaths[j].device_id = i;
703da5a1
RV		 4526 vdev->vpaths[j].ring.driver_id = j;
4527 vdev->vpaths[j].vdev = vdev;
4528 vdev->vpaths[j].max_mac_addr_cnt = max_mac_vpath;
4529 memcpy((u8 *)vdev->vpaths[j].macaddr,
7dad171c 4530 ll_config->device_hw_info.mac_addrs[i],
703da5a1
RV		 4531 ETH_ALEN);
4532
4533 /* Initialize the mac address list header */
4534 INIT_LIST_HEAD(&vdev->vpaths[j].mac_addr_list);
4535
4536 vdev->vpaths[j].mac_addr_cnt = 0;
4537 vdev->vpaths[j].mcast_addr_cnt = 0;
4538 j++;
4539 }
4540 vdev->exec_mode = VXGE_EXEC_MODE_DISABLE;
4541 vdev->max_config_port = max_config_port;
4542
4543 vdev->vlan_tag_strip = vlan_tag_strip;
4544
4545 /* map the hashing selector table to the configured vpaths */
4546 for (i = 0; i < vdev->no_of_vpath; i++)
4547 vdev->vpath_selector[i] = vpath_selector[i];
4548
4549 macaddr = (u8 *)vdev->vpaths[0].macaddr;
4550
7dad171c
PB		 4551 ll_config->device_hw_info.serial_number[VXGE_HW_INFO_LEN - 1] = '\0';
4552 ll_config->device_hw_info.product_desc[VXGE_HW_INFO_LEN - 1] = '\0';
4553 ll_config->device_hw_info.part_number[VXGE_HW_INFO_LEN - 1] = '\0';
703da5a1
RV		 4554
4555 vxge_debug_init(VXGE_TRACE, "%s: SERIAL NUMBER: %s",
7dad171c 4556 vdev->ndev->name, ll_config->device_hw_info.serial_number);
703da5a1
RV		 4557
4558 vxge_debug_init(VXGE_TRACE, "%s: PART NUMBER: %s",
7dad171c 4559 vdev->ndev->name, ll_config->device_hw_info.part_number);
703da5a1
RV		 4560
4561 vxge_debug_init(VXGE_TRACE, "%s: Neterion %s Server Adapter",
7dad171c 4562 vdev->ndev->name, ll_config->device_hw_info.product_desc);
703da5a1 4563
bf54e736 4564 vxge_debug_init(VXGE_TRACE, "%s: MAC ADDR: %pM",
4565 vdev->ndev->name, macaddr);
703da5a1
RV		 4566
4567 vxge_debug_init(VXGE_TRACE, "%s: Link Width x%d",
4568 vdev->ndev->name, vxge_hw_device_link_width_get(hldev));
4569
4570 vxge_debug_init(VXGE_TRACE,
4571 "%s: Firmware version : %s Date : %s", vdev->ndev->name,
7dad171c
PB		 4572 ll_config->device_hw_info.fw_version.version,
4573 ll_config->device_hw_info.fw_date.date);
703da5a1 4574
0a25bdc6 4575 if (new_device) {
7dad171c 4576 switch (ll_config->device_hw_info.function_mode) {
0a25bdc6
SH		 4577 case VXGE_HW_FUNCTION_MODE_SINGLE_FUNCTION:
4578 vxge_debug_init(VXGE_TRACE,
4579 "%s: Single Function Mode Enabled", vdev->ndev->name);
4580 break;
4581 case VXGE_HW_FUNCTION_MODE_MULTI_FUNCTION:
4582 vxge_debug_init(VXGE_TRACE,
4583 "%s: Multi Function Mode Enabled", vdev->ndev->name);
4584 break;
4585 case VXGE_HW_FUNCTION_MODE_SRIOV:
4586 vxge_debug_init(VXGE_TRACE,
4587 "%s: Single Root IOV Mode Enabled", vdev->ndev->name);
4588 break;
4589 case VXGE_HW_FUNCTION_MODE_MRIOV:
4590 vxge_debug_init(VXGE_TRACE,
4591 "%s: Multi Root IOV Mode Enabled", vdev->ndev->name);
4592 break;
4593 }
4594 }
4595
703da5a1
RV		 4596 vxge_print_parm(vdev, vpath_mask);
4597
4598 /* Store the fw version for ethttool option */
7dad171c 4599 strcpy(vdev->fw_version, ll_config->device_hw_info.fw_version.version);
703da5a1
RV		 4600 memcpy(vdev->ndev->dev_addr, (u8 *)vdev->vpaths[0].macaddr, ETH_ALEN);
4601 memcpy(vdev->ndev->perm_addr, vdev->ndev->dev_addr, ETH_ALEN);
4602
4603 /* Copy the station mac address to the list */
4604 for (i = 0; i < vdev->no_of_vpath; i++) {
4605 entry = (struct vxge_mac_addrs *)
4606 kzalloc(sizeof(struct vxge_mac_addrs),
4607 GFP_KERNEL);
4608 if (NULL == entry) {
4609 vxge_debug_init(VXGE_ERR,
4610 "%s: mac_addr_list : memory allocation failed",
4611 vdev->ndev->name);
4612 ret = -EPERM;
e8ac1756 4613 goto _exit6;
703da5a1
RV		 4614 }
4615 macaddr = (u8 *)&entry->macaddr;
4616 memcpy(macaddr, vdev->ndev->dev_addr, ETH_ALEN);
4617 list_add(&entry->item, &vdev->vpaths[i].mac_addr_list);
4618 vdev->vpaths[i].mac_addr_cnt = 1;
4619 }
4620
914d0d71 4621 kfree(device_config);
eb5f10c2
SH		 4622
4623 /*
4624 * INTA is shared in multi-function mode. This is unlike the INTA
4625 * implementation in MR mode, where each VH has its own INTA message.
4626 * - INTA is masked (disabled) as long as at least one function sets
4627 * its TITAN_MASK_ALL_INT.ALARM bit.
4628 * - INTA is unmasked (enabled) when all enabled functions have cleared
4629 * their own TITAN_MASK_ALL_INT.ALARM bit.
4630 * The TITAN_MASK_ALL_INT ALARM & TRAFFIC bits are cleared on power up.
4631 * Though this driver leaves the top level interrupts unmasked while
4632 * leaving the required module interrupt bits masked on exit, there
4633 * could be a rougue driver around that does not follow this procedure
4634 * resulting in a failure to generate interrupts. The following code is
4635 * present to prevent such a failure.
4636 */
4637
7dad171c 4638 if (ll_config->device_hw_info.function_mode ==
eb5f10c2
SH		 4639 VXGE_HW_FUNCTION_MODE_MULTI_FUNCTION)
4640 if (vdev->config.intr_type == INTA)
4641 vxge_hw_device_unmask_all(hldev);
4642
703da5a1
RV		 4643 vxge_debug_entryexit(VXGE_TRACE, "%s: %s:%d Exiting...",
4644 vdev->ndev->name, __func__, __LINE__);
4645
4646 vxge_hw_device_debug_set(hldev, VXGE_ERR, VXGE_COMPONENT_LL);
4647 VXGE_COPY_DEBUG_INFO_TO_LL(vdev, vxge_hw_device_error_level_get(hldev),
4648 vxge_hw_device_trace_level_get(hldev));
4649
7dad171c 4650 kfree(ll_config);
703da5a1
RV		 4651 return 0;
4652
e8ac1756 4653_exit6:
703da5a1
RV		 4654 for (i = 0; i < vdev->no_of_vpath; i++)
4655 vxge_free_mac_add_list(&vdev->vpaths[i]);
e8ac1756 4656_exit5:
703da5a1 4657 vxge_device_unregister(hldev);
7975d1ee 4658_exit4:
5dbc9011 4659 pci_disable_sriov(pdev);
703da5a1 4660 vxge_hw_device_terminate(hldev);
703da5a1
RV		 4661_exit3:
4662 iounmap(attr.bar0);
4663_exit2:
4664 pci_release_regions(pdev);
4665_exit1:
4666 pci_disable_device(pdev);
4667_exit0:
7dad171c 4668 kfree(ll_config);
703da5a1
RV		 4669 kfree(device_config);
4670 driver_config->config_dev_cnt--;
4671 pci_set_drvdata(pdev, NULL);
4672 return ret;
4673}
4674
4675/**
4676 * vxge_rem_nic - Free the PCI device
4677 * @pdev: structure containing the PCI related information of the device.
4678 * Description: This function is called by the Pci subsystem to release a
4679 * PCI device and free up all resource held up by the device.
4680 */
2c91308f 4681static void __devexit vxge_remove(struct pci_dev *pdev)
703da5a1 4682{
2c91308f 4683 struct __vxge_hw_device *hldev;
703da5a1
RV		 4684 struct vxgedev *vdev = NULL;
4685 struct net_device *dev;
4686 int i = 0;
703da5a1 4687
d8ee7071 4688 hldev = pci_get_drvdata(pdev);
703da5a1
RV		 4689
4690 if (hldev == NULL)
4691 return;
2c91308f 4692
703da5a1
RV		 4693 dev = hldev->ndev;
4694 vdev = netdev_priv(dev);
4695
2c91308f 4696 vxge_debug_entryexit(vdev->level_trace, "%s:%d", __func__, __LINE__);
703da5a1 4697
2c91308f
JM		 4698 vxge_debug_init(vdev->level_trace, "%s : removing PCI device...",
4699 __func__);
703da5a1
RV		 4700 vxge_device_unregister(hldev);
4701
4702 for (i = 0; i < vdev->no_of_vpath; i++) {
4703 vxge_free_mac_add_list(&vdev->vpaths[i]);
4704 vdev->vpaths[i].mcast_addr_cnt = 0;
4705 vdev->vpaths[i].mac_addr_cnt = 0;
4706 }
4707
4708 kfree(vdev->vpaths);
4709
4710 iounmap(vdev->bar0);
703da5a1 4711
5dbc9011
SS		 4712 pci_disable_sriov(pdev);
4713
703da5a1
RV		 4714 /* we are safe to free it now */
4715 free_netdev(dev);
4716
2c91308f
JM		 4717 vxge_debug_init(vdev->level_trace, "%s:%d Device unregistered",
4718 __func__, __LINE__);
703da5a1
RV		 4719
4720 vxge_hw_device_terminate(hldev);
4721
4722 pci_disable_device(pdev);
4723 pci_release_regions(pdev);
4724 pci_set_drvdata(pdev, NULL);
2c91308f
JM		 4725 vxge_debug_entryexit(vdev->level_trace, "%s:%d Exiting...", __func__,
4726 __LINE__);
703da5a1
RV		 4727}
4728
4729static struct pci_error_handlers vxge_err_handler = {
4730 .error_detected = vxge_io_error_detected,
4731 .slot_reset = vxge_io_slot_reset,
4732 .resume = vxge_io_resume,
4733};
4734
4735static struct pci_driver vxge_driver = {
4736 .name = VXGE_DRIVER_NAME,
4737 .id_table = vxge_id_table,
4738 .probe = vxge_probe,
4739 .remove = __devexit_p(vxge_remove),
4740#ifdef CONFIG_PM
4741 .suspend = vxge_pm_suspend,
4742 .resume = vxge_pm_resume,
4743#endif
4744 .err_handler = &vxge_err_handler,
4745};
4746
4747static int __init
4748vxge_starter(void)
4749{
4750 int ret = 0;
703da5a1 4751
75f5e1c6
JP		 4752 pr_info("Copyright(c) 2002-2010 Exar Corp.\n");
4753 pr_info("Driver version: %s\n", DRV_VERSION);
703da5a1
RV		 4754
4755 verify_bandwidth();
4756
4757 driver_config = kzalloc(sizeof(struct vxge_drv_config), GFP_KERNEL);
4758 if (!driver_config)
4759 return -ENOMEM;
4760
4761 ret = pci_register_driver(&vxge_driver);
4762
4763 if (driver_config->config_dev_cnt &&
4764 (driver_config->config_dev_cnt != driver_config->total_dev_cnt))
4765 vxge_debug_init(VXGE_ERR,
4766 "%s: Configured %d of %d devices",
4767 VXGE_DRIVER_NAME, driver_config->config_dev_cnt,
4768 driver_config->total_dev_cnt);
4769
4770 if (ret)
4771 kfree(driver_config);
4772
4773 return ret;
4774}
4775
4776static void __exit
4777vxge_closer(void)
4778{
4779 pci_unregister_driver(&vxge_driver);
4780 kfree(driver_config);
4781}
4782module_init(vxge_starter);
4783module_exit(vxge_closer);
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