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vxge: enable rxhash
[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>
53#include "vxge-main.h"
54#include "vxge-reg.h"
55
56MODULE_LICENSE("Dual BSD/GPL");
57MODULE_DESCRIPTION("Neterion's X3100 Series 10GbE PCIe I/O"
58 "Virtualized Server Adapter");
59
a3aa1884 60static DEFINE_PCI_DEVICE_TABLE(vxge_id_table) = {
703da5a1
RV		 61 {PCI_VENDOR_ID_S2IO, PCI_DEVICE_ID_TITAN_WIN, PCI_ANY_ID,
62 PCI_ANY_ID},
63 {PCI_VENDOR_ID_S2IO, PCI_DEVICE_ID_TITAN_UNI, PCI_ANY_ID,
64 PCI_ANY_ID},
65 {0}
66};
67
68MODULE_DEVICE_TABLE(pci, vxge_id_table);
69
70VXGE_MODULE_PARAM_INT(vlan_tag_strip, VXGE_HW_VPATH_RPA_STRIP_VLAN_TAG_ENABLE);
71VXGE_MODULE_PARAM_INT(addr_learn_en, VXGE_HW_MAC_ADDR_LEARN_DEFAULT);
72VXGE_MODULE_PARAM_INT(max_config_port, VXGE_MAX_CONFIG_PORT);
73VXGE_MODULE_PARAM_INT(max_config_vpath, VXGE_USE_DEFAULT);
74VXGE_MODULE_PARAM_INT(max_mac_vpath, VXGE_MAX_MAC_ADDR_COUNT);
75VXGE_MODULE_PARAM_INT(max_config_dev, VXGE_MAX_CONFIG_DEV);
76
77static u16 vpath_selector[VXGE_HW_MAX_VIRTUAL_PATHS] =
78 {0, 1, 3, 3, 7, 7, 7, 7, 15, 15, 15, 15, 15, 15, 15, 15, 31};
79static unsigned int bw_percentage[VXGE_HW_MAX_VIRTUAL_PATHS] =
80 {[0 ...(VXGE_HW_MAX_VIRTUAL_PATHS - 1)] = 0xFF};
81module_param_array(bw_percentage, uint, NULL, 0);
82
83static struct vxge_drv_config *driver_config;
84
42821a5b 85static enum vxge_hw_status vxge_add_mac_addr(struct vxgedev *vdev,
86 struct macInfo *mac);
87static enum vxge_hw_status vxge_del_mac_addr(struct vxgedev *vdev,
88 struct macInfo *mac);
89static int vxge_mac_list_add(struct vxge_vpath *vpath, struct macInfo *mac);
90static int vxge_mac_list_del(struct vxge_vpath *vpath, struct macInfo *mac);
91static enum vxge_hw_status vxge_restore_vpath_vid_table(struct vxge_vpath *vpath);
92static enum vxge_hw_status vxge_restore_vpath_mac_addr(struct vxge_vpath *vpath);
93static enum vxge_hw_status vxge_reset_all_vpaths(struct vxgedev *vdev);
94
703da5a1
RV		 95static inline int is_vxge_card_up(struct vxgedev *vdev)
96{
97 return test_bit(__VXGE_STATE_CARD_UP, &vdev->state);
98}
99
100static inline void VXGE_COMPLETE_VPATH_TX(struct vxge_fifo *fifo)
101{
ff67df55
BL		 102 struct sk_buff **skb_ptr = NULL;
103 struct sk_buff **temp;
104#define NR_SKB_COMPLETED 128
105 struct sk_buff *completed[NR_SKB_COMPLETED];
106 int more;
703da5a1 107
ff67df55
BL		 108 do {
109 more = 0;
110 skb_ptr = completed;
111
98f45da2 112 if (__netif_tx_trylock(fifo->txq)) {
ff67df55
BL		 113 vxge_hw_vpath_poll_tx(fifo->handle, &skb_ptr,
114 NR_SKB_COMPLETED, &more);
98f45da2 115 __netif_tx_unlock(fifo->txq);
ff67df55 116 }
98f45da2 117
ff67df55
BL		 118 /* free SKBs */
119 for (temp = completed; temp != skb_ptr; temp++)
120 dev_kfree_skb_irq(*temp);
98f45da2 121 } while (more);
703da5a1
RV		 122}
123
124static inline void VXGE_COMPLETE_ALL_TX(struct vxgedev *vdev)
125{
126 int i;
127
128 /* Complete all transmits */
129 for (i = 0; i < vdev->no_of_vpath; i++)
130 VXGE_COMPLETE_VPATH_TX(&vdev->vpaths[i].fifo);
131}
132
133static inline void VXGE_COMPLETE_ALL_RX(struct vxgedev *vdev)
134{
135 int i;
136 struct vxge_ring *ring;
137
138 /* Complete all receives*/
139 for (i = 0; i < vdev->no_of_vpath; i++) {
140 ring = &vdev->vpaths[i].ring;
141 vxge_hw_vpath_poll_rx(ring->handle);
142 }
143}
144
703da5a1
RV		 145/*
146 * vxge_callback_link_up
147 *
148 * This function is called during interrupt context to notify link up state
149 * change.
150 */
42821a5b 151static void
703da5a1
RV		 152vxge_callback_link_up(struct __vxge_hw_device *hldev)
153{
154 struct net_device *dev = hldev->ndev;
155 struct vxgedev *vdev = (struct vxgedev *)netdev_priv(dev);
156
157 vxge_debug_entryexit(VXGE_TRACE, "%s: %s:%d",
158 vdev->ndev->name, __func__, __LINE__);
75f5e1c6 159 netdev_notice(vdev->ndev, "Link Up\n");
703da5a1
RV		 160 vdev->stats.link_up++;
161
162 netif_carrier_on(vdev->ndev);
d03848e0 163 netif_tx_wake_all_queues(vdev->ndev);
703da5a1
RV		 164
165 vxge_debug_entryexit(VXGE_TRACE,
166 "%s: %s:%d Exiting...", vdev->ndev->name, __func__, __LINE__);
167}
168
169/*
170 * vxge_callback_link_down
171 *
172 * This function is called during interrupt context to notify link down state
173 * change.
174 */
42821a5b 175static void
703da5a1
RV		 176vxge_callback_link_down(struct __vxge_hw_device *hldev)
177{
178 struct net_device *dev = hldev->ndev;
179 struct vxgedev *vdev = (struct vxgedev *)netdev_priv(dev);
180
181 vxge_debug_entryexit(VXGE_TRACE,
182 "%s: %s:%d", vdev->ndev->name, __func__, __LINE__);
75f5e1c6 183 netdev_notice(vdev->ndev, "Link Down\n");
703da5a1
RV		 184
185 vdev->stats.link_down++;
186 netif_carrier_off(vdev->ndev);
d03848e0 187 netif_tx_stop_all_queues(vdev->ndev);
703da5a1
RV		 188
189 vxge_debug_entryexit(VXGE_TRACE,
190 "%s: %s:%d Exiting...", vdev->ndev->name, __func__, __LINE__);
191}
192
193/*
194 * vxge_rx_alloc
195 *
196 * Allocate SKB.
197 */
198static struct sk_buff*
199vxge_rx_alloc(void *dtrh, struct vxge_ring *ring, const int skb_size)
200{
201 struct net_device *dev;
202 struct sk_buff *skb;
203 struct vxge_rx_priv *rx_priv;
204
205 dev = ring->ndev;
206 vxge_debug_entryexit(VXGE_TRACE, "%s: %s:%d",
207 ring->ndev->name, __func__, __LINE__);
208
209 rx_priv = vxge_hw_ring_rxd_private_get(dtrh);
210
211 /* try to allocate skb first. this one may fail */
212 skb = netdev_alloc_skb(dev, skb_size +
213 VXGE_HW_HEADER_ETHERNET_II_802_3_ALIGN);
214 if (skb == NULL) {
215 vxge_debug_mem(VXGE_ERR,
216 "%s: out of memory to allocate SKB", dev->name);
217 ring->stats.skb_alloc_fail++;
218 return NULL;
219 }
220
221 vxge_debug_mem(VXGE_TRACE,
222 "%s: %s:%d Skb : 0x%p", ring->ndev->name,
223 __func__, __LINE__, skb);
224
225 skb_reserve(skb, VXGE_HW_HEADER_ETHERNET_II_802_3_ALIGN);
226
227 rx_priv->skb = skb;
ea11bbe0 228 rx_priv->skb_data = NULL;
703da5a1
RV		 229 rx_priv->data_size = skb_size;
230 vxge_debug_entryexit(VXGE_TRACE,
231 "%s: %s:%d Exiting...", ring->ndev->name, __func__, __LINE__);
232
233 return skb;
234}
235
236/*
237 * vxge_rx_map
238 */
239static int vxge_rx_map(void *dtrh, struct vxge_ring *ring)
240{
241 struct vxge_rx_priv *rx_priv;
242 dma_addr_t dma_addr;
243
244 vxge_debug_entryexit(VXGE_TRACE, "%s: %s:%d",
245 ring->ndev->name, __func__, __LINE__);
246 rx_priv = vxge_hw_ring_rxd_private_get(dtrh);
247
ea11bbe0
BL		 248 rx_priv->skb_data = rx_priv->skb->data;
249 dma_addr = pci_map_single(ring->pdev, rx_priv->skb_data,
703da5a1
RV		 250 rx_priv->data_size, PCI_DMA_FROMDEVICE);
251
fa15e99b 252 if (unlikely(pci_dma_mapping_error(ring->pdev, dma_addr))) {
703da5a1
RV		 253 ring->stats.pci_map_fail++;
254 return -EIO;
255 }
256 vxge_debug_mem(VXGE_TRACE,
257 "%s: %s:%d 1 buffer mode dma_addr = 0x%llx",
258 ring->ndev->name, __func__, __LINE__,
259 (unsigned long long)dma_addr);
260 vxge_hw_ring_rxd_1b_set(dtrh, dma_addr, rx_priv->data_size);
261
262 rx_priv->data_dma = dma_addr;
263 vxge_debug_entryexit(VXGE_TRACE,
264 "%s: %s:%d Exiting...", ring->ndev->name, __func__, __LINE__);
265
266 return 0;
267}
268
269/*
270 * vxge_rx_initial_replenish
271 * Allocation of RxD as an initial replenish procedure.
272 */
273static enum vxge_hw_status
274vxge_rx_initial_replenish(void *dtrh, void *userdata)
275{
276 struct vxge_ring *ring = (struct vxge_ring *)userdata;
277 struct vxge_rx_priv *rx_priv;
278
279 vxge_debug_entryexit(VXGE_TRACE, "%s: %s:%d",
280 ring->ndev->name, __func__, __LINE__);
281 if (vxge_rx_alloc(dtrh, ring,
282 VXGE_LL_MAX_FRAME_SIZE(ring->ndev)) == NULL)
283 return VXGE_HW_FAIL;
284
285 if (vxge_rx_map(dtrh, ring)) {
286 rx_priv = vxge_hw_ring_rxd_private_get(dtrh);
287 dev_kfree_skb(rx_priv->skb);
288
289 return VXGE_HW_FAIL;
290 }
291 vxge_debug_entryexit(VXGE_TRACE,
292 "%s: %s:%d Exiting...", ring->ndev->name, __func__, __LINE__);
293
294 return VXGE_HW_OK;
295}
296
297static inline void
298vxge_rx_complete(struct vxge_ring *ring, struct sk_buff *skb, u16 vlan,
299 int pkt_length, struct vxge_hw_ring_rxd_info *ext_info)
300{
301
302 vxge_debug_entryexit(VXGE_TRACE, "%s: %s:%d",
303 ring->ndev->name, __func__, __LINE__);
304 skb_record_rx_queue(skb, ring->driver_id);
305 skb->protocol = eth_type_trans(skb, ring->ndev);
306
307 ring->stats.rx_frms++;
308 ring->stats.rx_bytes += pkt_length;
309
310 if (skb->pkt_type == PACKET_MULTICAST)
311 ring->stats.rx_mcast++;
312
313 vxge_debug_rx(VXGE_TRACE,
314 "%s: %s:%d skb protocol = %d",
315 ring->ndev->name, __func__, __LINE__, skb->protocol);
316
317 if (ring->gro_enable) {
318 if (ring->vlgrp && ext_info->vlan &&
319 (ring->vlan_tag_strip ==
320 VXGE_HW_VPATH_RPA_STRIP_VLAN_TAG_ENABLE))
a5d165b5 321 vlan_gro_receive(ring->napi_p, ring->vlgrp,
703da5a1
RV		 322 ext_info->vlan, skb);
323 else
a5d165b5 324 napi_gro_receive(ring->napi_p, skb);
703da5a1
RV		 325 } else {
326 if (ring->vlgrp && vlan &&
327 (ring->vlan_tag_strip ==
328 VXGE_HW_VPATH_RPA_STRIP_VLAN_TAG_ENABLE))
329 vlan_hwaccel_receive_skb(skb, ring->vlgrp, vlan);
330 else
331 netif_receive_skb(skb);
332 }
333 vxge_debug_entryexit(VXGE_TRACE,
334 "%s: %s:%d Exiting...", ring->ndev->name, __func__, __LINE__);
335}
336
337static inline void vxge_re_pre_post(void *dtr, struct vxge_ring *ring,
338 struct vxge_rx_priv *rx_priv)
339{
340 pci_dma_sync_single_for_device(ring->pdev,
341 rx_priv->data_dma, rx_priv->data_size, PCI_DMA_FROMDEVICE);
342
343 vxge_hw_ring_rxd_1b_set(dtr, rx_priv->data_dma, rx_priv->data_size);
344 vxge_hw_ring_rxd_pre_post(ring->handle, dtr);
345}
346
347static inline void vxge_post(int *dtr_cnt, void **first_dtr,
348 void *post_dtr, struct __vxge_hw_ring *ringh)
349{
350 int dtr_count = *dtr_cnt;
351 if ((*dtr_cnt % VXGE_HW_RXSYNC_FREQ_CNT) == 0) {
352 if (*first_dtr)
353 vxge_hw_ring_rxd_post_post_wmb(ringh, *first_dtr);
354 *first_dtr = post_dtr;
355 } else
356 vxge_hw_ring_rxd_post_post(ringh, post_dtr);
357 dtr_count++;
358 *dtr_cnt = dtr_count;
359}
360
361/*
362 * vxge_rx_1b_compl
363 *
364 * If the interrupt is because of a received frame or if the receive ring
365 * contains fresh as yet un-processed frames, this function is called.
366 */
42821a5b 367static enum vxge_hw_status
703da5a1
RV		 368vxge_rx_1b_compl(struct __vxge_hw_ring *ringh, void *dtr,
369 u8 t_code, void *userdata)
370{
371 struct vxge_ring *ring = (struct vxge_ring *)userdata;
372 struct net_device *dev = ring->ndev;
373 unsigned int dma_sizes;
374 void *first_dtr = NULL;
375 int dtr_cnt = 0;
376 int data_size;
377 dma_addr_t data_dma;
378 int pkt_length;
379 struct sk_buff *skb;
380 struct vxge_rx_priv *rx_priv;
381 struct vxge_hw_ring_rxd_info ext_info;
382 vxge_debug_entryexit(VXGE_TRACE, "%s: %s:%d",
383 ring->ndev->name, __func__, __LINE__);
384 ring->pkts_processed = 0;
385
3363276f 386 vxge_hw_ring_replenish(ringh);
703da5a1
RV		 387
388 do {
3f23e436 389 prefetch((char *)dtr + L1_CACHE_BYTES);
703da5a1
RV		 390 rx_priv = vxge_hw_ring_rxd_private_get(dtr);
391 skb = rx_priv->skb;
392 data_size = rx_priv->data_size;
393 data_dma = rx_priv->data_dma;
ea11bbe0 394 prefetch(rx_priv->skb_data);
703da5a1
RV		 395
396 vxge_debug_rx(VXGE_TRACE,
397 "%s: %s:%d skb = 0x%p",
398 ring->ndev->name, __func__, __LINE__, skb);
399
400 vxge_hw_ring_rxd_1b_get(ringh, dtr, &dma_sizes);
401 pkt_length = dma_sizes;
402
22fa125e
SH		 403 pkt_length -= ETH_FCS_LEN;
404
703da5a1
RV		 405 vxge_debug_rx(VXGE_TRACE,
406 "%s: %s:%d Packet Length = %d",
407 ring->ndev->name, __func__, __LINE__, pkt_length);
408
409 vxge_hw_ring_rxd_1b_info_get(ringh, dtr, &ext_info);
410
411 /* check skb validity */
412 vxge_assert(skb);
413
414 prefetch((char *)skb + L1_CACHE_BYTES);
415 if (unlikely(t_code)) {
416
417 if (vxge_hw_ring_handle_tcode(ringh, dtr, t_code) !=
418 VXGE_HW_OK) {
419
420 ring->stats.rx_errors++;
421 vxge_debug_rx(VXGE_TRACE,
422 "%s: %s :%d Rx T_code is %d",
423 ring->ndev->name, __func__,
424 __LINE__, t_code);
425
426 /* If the t_code is not supported and if the
427 * t_code is other than 0x5 (unparseable packet
428 * such as unknown UPV6 header), Drop it !!!
429 */
430 vxge_re_pre_post(dtr, ring, rx_priv);
431
432 vxge_post(&dtr_cnt, &first_dtr, dtr, ringh);
433 ring->stats.rx_dropped++;
434 continue;
435 }
436 }
437
438 if (pkt_length > VXGE_LL_RX_COPY_THRESHOLD) {
439
440 if (vxge_rx_alloc(dtr, ring, data_size) != NULL) {
441
442 if (!vxge_rx_map(dtr, ring)) {
443 skb_put(skb, pkt_length);
444
445 pci_unmap_single(ring->pdev, data_dma,
446 data_size, PCI_DMA_FROMDEVICE);
447
448 vxge_hw_ring_rxd_pre_post(ringh, dtr);
449 vxge_post(&dtr_cnt, &first_dtr, dtr,
450 ringh);
451 } else {
452 dev_kfree_skb(rx_priv->skb);
453 rx_priv->skb = skb;
454 rx_priv->data_size = data_size;
455 vxge_re_pre_post(dtr, ring, rx_priv);
456
457 vxge_post(&dtr_cnt, &first_dtr, dtr,
458 ringh);
459 ring->stats.rx_dropped++;
460 break;
461 }
462 } else {
463 vxge_re_pre_post(dtr, ring, rx_priv);
464
465 vxge_post(&dtr_cnt, &first_dtr, dtr, ringh);
466 ring->stats.rx_dropped++;
467 break;
468 }
469 } else {
470 struct sk_buff *skb_up;
471
472 skb_up = netdev_alloc_skb(dev, pkt_length +
473 VXGE_HW_HEADER_ETHERNET_II_802_3_ALIGN);
474 if (skb_up != NULL) {
475 skb_reserve(skb_up,
476 VXGE_HW_HEADER_ETHERNET_II_802_3_ALIGN);
477
478 pci_dma_sync_single_for_cpu(ring->pdev,
479 data_dma, data_size,
480 PCI_DMA_FROMDEVICE);
481
482 vxge_debug_mem(VXGE_TRACE,
483 "%s: %s:%d skb_up = %p",
484 ring->ndev->name, __func__,
485 __LINE__, skb);
486 memcpy(skb_up->data, skb->data, pkt_length);
487
488 vxge_re_pre_post(dtr, ring, rx_priv);
489
490 vxge_post(&dtr_cnt, &first_dtr, dtr,
491 ringh);
492 /* will netif_rx small SKB instead */
493 skb = skb_up;
494 skb_put(skb, pkt_length);
495 } else {
496 vxge_re_pre_post(dtr, ring, rx_priv);
497
498 vxge_post(&dtr_cnt, &first_dtr, dtr, ringh);
499 vxge_debug_rx(VXGE_ERR,
500 "%s: vxge_rx_1b_compl: out of "
501 "memory", dev->name);
502 ring->stats.skb_alloc_fail++;
503 break;
504 }
505 }
506
507 if ((ext_info.proto & VXGE_HW_FRAME_PROTO_TCP_OR_UDP) &&
508 !(ext_info.proto & VXGE_HW_FRAME_PROTO_IP_FRAG) &&
509 ring->rx_csum && /* Offload Rx side CSUM */
510 ext_info.l3_cksum == VXGE_HW_L3_CKSUM_OK &&
511 ext_info.l4_cksum == VXGE_HW_L4_CKSUM_OK)
512 skb->ip_summed = CHECKSUM_UNNECESSARY;
513 else
bc8acf2c 514 skb_checksum_none_assert(skb);
703da5a1 515
47f01db4
JM		 516 /* rth_hash_type and rth_it_hit are non-zero regardless of
517 * whether rss is enabled. Only the rth_value is zero/non-zero
518 * if rss is disabled/enabled, so key off of that.
519 */
520 if (ext_info.rth_value)
521 skb->rxhash = ext_info.rth_value;
522
703da5a1
RV		 523 vxge_rx_complete(ring, skb, ext_info.vlan,
524 pkt_length, &ext_info);
525
526 ring->budget--;
527 ring->pkts_processed++;
528 if (!ring->budget)
529 break;
530
531 } while (vxge_hw_ring_rxd_next_completed(ringh, &dtr,
532 &t_code) == VXGE_HW_OK);
533
534 if (first_dtr)
535 vxge_hw_ring_rxd_post_post_wmb(ringh, first_dtr);
536
703da5a1
RV		 537 vxge_debug_entryexit(VXGE_TRACE,
538 "%s:%d Exiting...",
539 __func__, __LINE__);
540 return VXGE_HW_OK;
541}
542
543/*
544 * vxge_xmit_compl
545 *
546 * If an interrupt was raised to indicate DMA complete of the Tx packet,
547 * this function is called. It identifies the last TxD whose buffer was
548 * freed and frees all skbs whose data have already DMA'ed into the NICs
549 * internal memory.
550 */
42821a5b 551static enum vxge_hw_status
703da5a1
RV		 552vxge_xmit_compl(struct __vxge_hw_fifo *fifo_hw, void *dtr,
553 enum vxge_hw_fifo_tcode t_code, void *userdata,
ff67df55 554 struct sk_buff ***skb_ptr, int nr_skb, int *more)
703da5a1
RV		 555{
556 struct vxge_fifo *fifo = (struct vxge_fifo *)userdata;
ff67df55 557 struct sk_buff *skb, **done_skb = *skb_ptr;
703da5a1
RV		 558 int pkt_cnt = 0;
559
560 vxge_debug_entryexit(VXGE_TRACE,
561 "%s:%d Entered....", __func__, __LINE__);
562
563 do {
564 int frg_cnt;
565 skb_frag_t *frag;
566 int i = 0, j;
567 struct vxge_tx_priv *txd_priv =
568 vxge_hw_fifo_txdl_private_get(dtr);
569
570 skb = txd_priv->skb;
571 frg_cnt = skb_shinfo(skb)->nr_frags;
572 frag = &skb_shinfo(skb)->frags[0];
573
574 vxge_debug_tx(VXGE_TRACE,
575 "%s: %s:%d fifo_hw = %p dtr = %p "
576 "tcode = 0x%x", fifo->ndev->name, __func__,
577 __LINE__, fifo_hw, dtr, t_code);
578 /* check skb validity */
579 vxge_assert(skb);
580 vxge_debug_tx(VXGE_TRACE,
581 "%s: %s:%d skb = %p itxd_priv = %p frg_cnt = %d",
582 fifo->ndev->name, __func__, __LINE__,
583 skb, txd_priv, frg_cnt);
584 if (unlikely(t_code)) {
585 fifo->stats.tx_errors++;
586 vxge_debug_tx(VXGE_ERR,
587 "%s: tx: dtr %p completed due to "
588 "error t_code %01x", fifo->ndev->name,
589 dtr, t_code);
590 vxge_hw_fifo_handle_tcode(fifo_hw, dtr, t_code);
591 }
592
593 /* for unfragmented skb */
594 pci_unmap_single(fifo->pdev, txd_priv->dma_buffers[i++],
595 skb_headlen(skb), PCI_DMA_TODEVICE);
596
597 for (j = 0; j < frg_cnt; j++) {
598 pci_unmap_page(fifo->pdev,
599 txd_priv->dma_buffers[i++],
600 frag->size, PCI_DMA_TODEVICE);
601 frag += 1;
602 }
603
604 vxge_hw_fifo_txdl_free(fifo_hw, dtr);
605
606 /* Updating the statistics block */
607 fifo->stats.tx_frms++;
608 fifo->stats.tx_bytes += skb->len;
609
ff67df55
BL		 610 *done_skb++ = skb;
611
612 if (--nr_skb <= 0) {
613 *more = 1;
614 break;
615 }
703da5a1
RV		 616
617 pkt_cnt++;
618 if (pkt_cnt > fifo->indicate_max_pkts)
619 break;
620
621 } while (vxge_hw_fifo_txdl_next_completed(fifo_hw,
622 &dtr, &t_code) == VXGE_HW_OK);
623
ff67df55 624 *skb_ptr = done_skb;
98f45da2
JM		 625 if (netif_tx_queue_stopped(fifo->txq))
626 netif_tx_wake_queue(fifo->txq);
703da5a1 627
703da5a1
RV		 628 vxge_debug_entryexit(VXGE_TRACE,
629 "%s: %s:%d Exiting...",
630 fifo->ndev->name, __func__, __LINE__);
631 return VXGE_HW_OK;
632}
633
28679751 634/* select a vpath to transmit the packet */
98f45da2 635static u32 vxge_get_vpath_no(struct vxgedev *vdev, struct sk_buff *skb)
703da5a1
RV		 636{
637 u16 queue_len, counter = 0;
638 if (skb->protocol == htons(ETH_P_IP)) {
639 struct iphdr *ip;
640 struct tcphdr *th;
641
642 ip = ip_hdr(skb);
643
644 if ((ip->frag_off & htons(IP_OFFSET|IP_MF)) == 0) {
645 th = (struct tcphdr *)(((unsigned char *)ip) +
646 ip->ihl*4);
647
648 queue_len = vdev->no_of_vpath;
649 counter = (ntohs(th->source) +
650 ntohs(th->dest)) &
651 vdev->vpath_selector[queue_len - 1];
652 if (counter >= queue_len)
653 counter = queue_len - 1;
703da5a1
RV		 654 }
655 }
656 return counter;
657}
658
659static enum vxge_hw_status vxge_search_mac_addr_in_list(
660 struct vxge_vpath *vpath, u64 del_mac)
661{
662 struct list_head *entry, *next;
663 list_for_each_safe(entry, next, &vpath->mac_addr_list) {
664 if (((struct vxge_mac_addrs *)entry)->macaddr == del_mac)
665 return TRUE;
666 }
667 return FALSE;
668}
669
670static int vxge_learn_mac(struct vxgedev *vdev, u8 *mac_header)
671{
672 struct macInfo mac_info;
673 u8 *mac_address = NULL;
674 u64 mac_addr = 0, vpath_vector = 0;
675 int vpath_idx = 0;
676 enum vxge_hw_status status = VXGE_HW_OK;
677 struct vxge_vpath *vpath = NULL;
678 struct __vxge_hw_device *hldev;
679
680 hldev = (struct __vxge_hw_device *) pci_get_drvdata(vdev->pdev);
681
682 mac_address = (u8 *)&mac_addr;
683 memcpy(mac_address, mac_header, ETH_ALEN);
684
685 /* Is this mac address already in the list? */
686 for (vpath_idx = 0; vpath_idx < vdev->no_of_vpath; vpath_idx++) {
687 vpath = &vdev->vpaths[vpath_idx];
688 if (vxge_search_mac_addr_in_list(vpath, mac_addr))
689 return vpath_idx;
690 }
691
692 memset(&mac_info, 0, sizeof(struct macInfo));
693 memcpy(mac_info.macaddr, mac_header, ETH_ALEN);
694
695 /* Any vpath has room to add mac address to its da table? */
696 for (vpath_idx = 0; vpath_idx < vdev->no_of_vpath; vpath_idx++) {
697 vpath = &vdev->vpaths[vpath_idx];
698 if (vpath->mac_addr_cnt < vpath->max_mac_addr_cnt) {
699 /* Add this mac address to this vpath */
700 mac_info.vpath_no = vpath_idx;
701 mac_info.state = VXGE_LL_MAC_ADDR_IN_DA_TABLE;
702 status = vxge_add_mac_addr(vdev, &mac_info);
703 if (status != VXGE_HW_OK)
704 return -EPERM;
705 return vpath_idx;
706 }
707 }
708
709 mac_info.state = VXGE_LL_MAC_ADDR_IN_LIST;
710 vpath_idx = 0;
711 mac_info.vpath_no = vpath_idx;
712 /* Is the first vpath already selected as catch-basin ? */
713 vpath = &vdev->vpaths[vpath_idx];
714 if (vpath->mac_addr_cnt > vpath->max_mac_addr_cnt) {
715 /* Add this mac address to this vpath */
716 if (FALSE == vxge_mac_list_add(vpath, &mac_info))
717 return -EPERM;
718 return vpath_idx;
719 }
720
721 /* Select first vpath as catch-basin */
722 vpath_vector = vxge_mBIT(vpath->device_id);
723 status = vxge_hw_mgmt_reg_write(vpath->vdev->devh,
724 vxge_hw_mgmt_reg_type_mrpcim,
725 0,
726 (ulong)offsetof(
727 struct vxge_hw_mrpcim_reg,
728 rts_mgr_cbasin_cfg),
729 vpath_vector);
730 if (status != VXGE_HW_OK) {
731 vxge_debug_tx(VXGE_ERR,
732 "%s: Unable to set the vpath-%d in catch-basin mode",
733 VXGE_DRIVER_NAME, vpath->device_id);
734 return -EPERM;
735 }
736
737 if (FALSE == vxge_mac_list_add(vpath, &mac_info))
738 return -EPERM;
739
740 return vpath_idx;
741}
742
743/**
744 * vxge_xmit
745 * @skb : the socket buffer containing the Tx data.
746 * @dev : device pointer.
747 *
748 * This function is the Tx entry point of the driver. Neterion NIC supports
749 * certain protocol assist features on Tx side, namely CSO, S/G, LSO.
703da5a1 750*/
61357325 751static netdev_tx_t
703da5a1
RV		 752vxge_xmit(struct sk_buff *skb, struct net_device *dev)
753{
754 struct vxge_fifo *fifo = NULL;
755 void *dtr_priv;
756 void *dtr = NULL;
757 struct vxgedev *vdev = NULL;
758 enum vxge_hw_status status;
759 int frg_cnt, first_frg_len;
760 skb_frag_t *frag;
761 int i = 0, j = 0, avail;
762 u64 dma_pointer;
763 struct vxge_tx_priv *txdl_priv = NULL;
764 struct __vxge_hw_fifo *fifo_hw;
703da5a1 765 int offload_type;
703da5a1 766 int vpath_no = 0;
703da5a1
RV		 767
768 vxge_debug_entryexit(VXGE_TRACE, "%s: %s:%d",
769 dev->name, __func__, __LINE__);
770
771 /* A buffer with no data will be dropped */
772 if (unlikely(skb->len <= 0)) {
773 vxge_debug_tx(VXGE_ERR,
774 "%s: Buffer has no data..", dev->name);
775 dev_kfree_skb(skb);
776 return NETDEV_TX_OK;
777 }
778
779 vdev = (struct vxgedev *)netdev_priv(dev);
780
781 if (unlikely(!is_vxge_card_up(vdev))) {
782 vxge_debug_tx(VXGE_ERR,
783 "%s: vdev not initialized", dev->name);
784 dev_kfree_skb(skb);
785 return NETDEV_TX_OK;
786 }
787
788 if (vdev->config.addr_learn_en) {
789 vpath_no = vxge_learn_mac(vdev, skb->data + ETH_ALEN);
790 if (vpath_no == -EPERM) {
791 vxge_debug_tx(VXGE_ERR,
792 "%s: Failed to store the mac address",
793 dev->name);
794 dev_kfree_skb(skb);
795 return NETDEV_TX_OK;
796 }
797 }
798
799 if (vdev->config.tx_steering_type == TX_MULTIQ_STEERING)
800 vpath_no = skb_get_queue_mapping(skb);
801 else if (vdev->config.tx_steering_type == TX_PORT_STEERING)
98f45da2 802 vpath_no = vxge_get_vpath_no(vdev, skb);
703da5a1
RV		 803
804 vxge_debug_tx(VXGE_TRACE, "%s: vpath_no= %d", dev->name, vpath_no);
805
806 if (vpath_no >= vdev->no_of_vpath)
807 vpath_no = 0;
808
809 fifo = &vdev->vpaths[vpath_no].fifo;
810 fifo_hw = fifo->handle;
811
98f45da2 812 if (netif_tx_queue_stopped(fifo->txq))
d03848e0 813 return NETDEV_TX_BUSY;
d03848e0 814
703da5a1
RV		 815 avail = vxge_hw_fifo_free_txdl_count_get(fifo_hw);
816 if (avail == 0) {
817 vxge_debug_tx(VXGE_ERR,
818 "%s: No free TXDs available", dev->name);
819 fifo->stats.txd_not_free++;
98f45da2 820 goto _exit0;
703da5a1
RV		 821 }
822
4403b371
BL		 823 /* Last TXD? Stop tx queue to avoid dropping packets. TX
824 * completion will resume the queue.
825 */
826 if (avail == 1)
98f45da2 827 netif_tx_stop_queue(fifo->txq);
4403b371 828
703da5a1
RV		 829 status = vxge_hw_fifo_txdl_reserve(fifo_hw, &dtr, &dtr_priv);
830 if (unlikely(status != VXGE_HW_OK)) {
831 vxge_debug_tx(VXGE_ERR,
832 "%s: Out of descriptors .", dev->name);
833 fifo->stats.txd_out_of_desc++;
98f45da2 834 goto _exit0;
703da5a1
RV		 835 }
836
837 vxge_debug_tx(VXGE_TRACE,
838 "%s: %s:%d fifo_hw = %p dtr = %p dtr_priv = %p",
839 dev->name, __func__, __LINE__,
840 fifo_hw, dtr, dtr_priv);
841
eab6d18d 842 if (vlan_tx_tag_present(skb)) {
703da5a1
RV		 843 u16 vlan_tag = vlan_tx_tag_get(skb);
844 vxge_hw_fifo_txdl_vlan_set(dtr, vlan_tag);
845 }
846
847 first_frg_len = skb_headlen(skb);
848
849 dma_pointer = pci_map_single(fifo->pdev, skb->data, first_frg_len,
850 PCI_DMA_TODEVICE);
851
852 if (unlikely(pci_dma_mapping_error(fifo->pdev, dma_pointer))) {
853 vxge_hw_fifo_txdl_free(fifo_hw, dtr);
703da5a1 854 fifo->stats.pci_map_fail++;
98f45da2 855 goto _exit0;
703da5a1
RV		 856 }
857
858 txdl_priv = vxge_hw_fifo_txdl_private_get(dtr);
859 txdl_priv->skb = skb;
860 txdl_priv->dma_buffers[j] = dma_pointer;
861
862 frg_cnt = skb_shinfo(skb)->nr_frags;
863 vxge_debug_tx(VXGE_TRACE,
864 "%s: %s:%d skb = %p txdl_priv = %p "
865 "frag_cnt = %d dma_pointer = 0x%llx", dev->name,
866 __func__, __LINE__, skb, txdl_priv,
867 frg_cnt, (unsigned long long)dma_pointer);
868
869 vxge_hw_fifo_txdl_buffer_set(fifo_hw, dtr, j++, dma_pointer,
870 first_frg_len);
871
872 frag = &skb_shinfo(skb)->frags[0];
873 for (i = 0; i < frg_cnt; i++) {
874 /* ignore 0 length fragment */
875 if (!frag->size)
876 continue;
877
98f45da2 878 dma_pointer = (u64) pci_map_page(fifo->pdev, frag->page,
703da5a1
RV		 879 frag->page_offset, frag->size,
880 PCI_DMA_TODEVICE);
881
882 if (unlikely(pci_dma_mapping_error(fifo->pdev, dma_pointer)))
98f45da2 883 goto _exit2;
703da5a1
RV		 884 vxge_debug_tx(VXGE_TRACE,
885 "%s: %s:%d frag = %d dma_pointer = 0x%llx",
886 dev->name, __func__, __LINE__, i,
887 (unsigned long long)dma_pointer);
888
889 txdl_priv->dma_buffers[j] = dma_pointer;
890 vxge_hw_fifo_txdl_buffer_set(fifo_hw, dtr, j++, dma_pointer,
891 frag->size);
892 frag += 1;
893 }
894
895 offload_type = vxge_offload_type(skb);
896
897 if (offload_type & (SKB_GSO_TCPV4 | SKB_GSO_TCPV6)) {
703da5a1
RV		 898 int mss = vxge_tcp_mss(skb);
899 if (mss) {
98f45da2 900 vxge_debug_tx(VXGE_TRACE, "%s: %s:%d mss = %d",
703da5a1
RV		 901 dev->name, __func__, __LINE__, mss);
902 vxge_hw_fifo_txdl_mss_set(dtr, mss);
903 } else {
904 vxge_assert(skb->len <=
905 dev->mtu + VXGE_HW_MAC_HEADER_MAX_SIZE);
906 vxge_assert(0);
907 goto _exit1;
908 }
909 }
910
911 if (skb->ip_summed == CHECKSUM_PARTIAL)
912 vxge_hw_fifo_txdl_cksum_set_bits(dtr,
913 VXGE_HW_FIFO_TXD_TX_CKO_IPV4_EN |
914 VXGE_HW_FIFO_TXD_TX_CKO_TCP_EN |
915 VXGE_HW_FIFO_TXD_TX_CKO_UDP_EN);
916
917 vxge_hw_fifo_txdl_post(fifo_hw, dtr);
703da5a1 918
703da5a1
RV		 919 vxge_debug_entryexit(VXGE_TRACE, "%s: %s:%d Exiting...",
920 dev->name, __func__, __LINE__);
6ed10654 921 return NETDEV_TX_OK;
703da5a1 922
98f45da2 923_exit2:
703da5a1 924 vxge_debug_tx(VXGE_TRACE, "%s: pci_map_page failed", dev->name);
703da5a1
RV		 925_exit1:
926 j = 0;
927 frag = &skb_shinfo(skb)->frags[0];
928
929 pci_unmap_single(fifo->pdev, txdl_priv->dma_buffers[j++],
930 skb_headlen(skb), PCI_DMA_TODEVICE);
931
932 for (; j < i; j++) {
933 pci_unmap_page(fifo->pdev, txdl_priv->dma_buffers[j],
934 frag->size, PCI_DMA_TODEVICE);
935 frag += 1;
936 }
937
938 vxge_hw_fifo_txdl_free(fifo_hw, dtr);
98f45da2
JM		 939_exit0:
940 netif_tx_stop_queue(fifo->txq);
703da5a1 941 dev_kfree_skb(skb);
703da5a1 942
6ed10654 943 return NETDEV_TX_OK;
703da5a1
RV		 944}
945
946/*
947 * vxge_rx_term
948 *
949 * Function will be called by hw function to abort all outstanding receive
950 * descriptors.
951 */
952static void
953vxge_rx_term(void *dtrh, enum vxge_hw_rxd_state state, void *userdata)
954{
955 struct vxge_ring *ring = (struct vxge_ring *)userdata;
956 struct vxge_rx_priv *rx_priv =
957 vxge_hw_ring_rxd_private_get(dtrh);
958
959 vxge_debug_entryexit(VXGE_TRACE, "%s: %s:%d",
960 ring->ndev->name, __func__, __LINE__);
961 if (state != VXGE_HW_RXD_STATE_POSTED)
962 return;
963
964 pci_unmap_single(ring->pdev, rx_priv->data_dma,
965 rx_priv->data_size, PCI_DMA_FROMDEVICE);
966
967 dev_kfree_skb(rx_priv->skb);
ea11bbe0 968 rx_priv->skb_data = NULL;
703da5a1
RV		 969
970 vxge_debug_entryexit(VXGE_TRACE,
971 "%s: %s:%d Exiting...",
972 ring->ndev->name, __func__, __LINE__);
973}
974
975/*
976 * vxge_tx_term
977 *
978 * Function will be called to abort all outstanding tx descriptors
979 */
980static void
981vxge_tx_term(void *dtrh, enum vxge_hw_txdl_state state, void *userdata)
982{
983 struct vxge_fifo *fifo = (struct vxge_fifo *)userdata;
984 skb_frag_t *frag;
985 int i = 0, j, frg_cnt;
986 struct vxge_tx_priv *txd_priv = vxge_hw_fifo_txdl_private_get(dtrh);
987 struct sk_buff *skb = txd_priv->skb;
988
989 vxge_debug_entryexit(VXGE_TRACE, "%s:%d", __func__, __LINE__);
990
991 if (state != VXGE_HW_TXDL_STATE_POSTED)
992 return;
993
994 /* check skb validity */
995 vxge_assert(skb);
996 frg_cnt = skb_shinfo(skb)->nr_frags;
997 frag = &skb_shinfo(skb)->frags[0];
998
999 /* for unfragmented skb */
1000 pci_unmap_single(fifo->pdev, txd_priv->dma_buffers[i++],
1001 skb_headlen(skb), PCI_DMA_TODEVICE);
1002
1003 for (j = 0; j < frg_cnt; j++) {
1004 pci_unmap_page(fifo->pdev, txd_priv->dma_buffers[i++],
1005 frag->size, PCI_DMA_TODEVICE);
1006 frag += 1;
1007 }
1008
1009 dev_kfree_skb(skb);
1010
1011 vxge_debug_entryexit(VXGE_TRACE,
1012 "%s:%d Exiting...", __func__, __LINE__);
1013}
1014
1015/**
1016 * vxge_set_multicast
1017 * @dev: pointer to the device structure
1018 *
1019 * Entry point for multicast address enable/disable
1020 * This function is a driver entry point which gets called by the kernel
1021 * whenever multicast addresses must be enabled/disabled. This also gets
1022 * called to set/reset promiscuous mode. Depending on the deivce flag, we
1023 * determine, if multicast address must be enabled or if promiscuous mode
1024 * is to be disabled etc.
1025 */
1026static void vxge_set_multicast(struct net_device *dev)
1027{
22bedad3 1028 struct netdev_hw_addr *ha;
703da5a1
RV		 1029 struct vxgedev *vdev;
1030 int i, mcast_cnt = 0;
7adf7d1b
JM		 1031 struct __vxge_hw_device *hldev;
1032 struct vxge_vpath *vpath;
703da5a1
RV		 1033 enum vxge_hw_status status = VXGE_HW_OK;
1034 struct macInfo mac_info;
1035 int vpath_idx = 0;
1036 struct vxge_mac_addrs *mac_entry;
1037 struct list_head *list_head;
1038 struct list_head *entry, *next;
1039 u8 *mac_address = NULL;
1040
1041 vxge_debug_entryexit(VXGE_TRACE,
1042 "%s:%d", __func__, __LINE__);
1043
1044 vdev = (struct vxgedev *)netdev_priv(dev);
1045 hldev = (struct __vxge_hw_device *)vdev->devh;
1046
1047 if (unlikely(!is_vxge_card_up(vdev)))
1048 return;
1049
1050 if ((dev->flags & IFF_ALLMULTI) && (!vdev->all_multi_flg)) {
1051 for (i = 0; i < vdev->no_of_vpath; i++) {
7adf7d1b
JM		 1052 vpath = &vdev->vpaths[i];
1053 vxge_assert(vpath->is_open);
1054 status = vxge_hw_vpath_mcast_enable(vpath->handle);
1055 if (status != VXGE_HW_OK)
1056 vxge_debug_init(VXGE_ERR, "failed to enable "
1057 "multicast, status %d", status);
703da5a1
RV		 1058 vdev->all_multi_flg = 1;
1059 }
7adf7d1b 1060 } else if (!(dev->flags & IFF_ALLMULTI) && (vdev->all_multi_flg)) {
703da5a1 1061 for (i = 0; i < vdev->no_of_vpath; i++) {
7adf7d1b
JM		 1062 vpath = &vdev->vpaths[i];
1063 vxge_assert(vpath->is_open);
1064 status = vxge_hw_vpath_mcast_disable(vpath->handle);
1065 if (status != VXGE_HW_OK)
1066 vxge_debug_init(VXGE_ERR, "failed to disable "
1067 "multicast, status %d", status);
1068 vdev->all_multi_flg = 0;
703da5a1
RV		 1069 }
1070 }
1071
703da5a1
RV		 1072
1073 if (!vdev->config.addr_learn_en) {
7adf7d1b
JM		 1074 for (i = 0; i < vdev->no_of_vpath; i++) {
1075 vpath = &vdev->vpaths[i];
1076 vxge_assert(vpath->is_open);
1077
1078 if (dev->flags & IFF_PROMISC)
703da5a1 1079 status = vxge_hw_vpath_promisc_enable(
7adf7d1b
JM		 1080 vpath->handle);
1081 else
703da5a1 1082 status = vxge_hw_vpath_promisc_disable(
7adf7d1b
JM		 1083 vpath->handle);
1084 if (status != VXGE_HW_OK)
1085 vxge_debug_init(VXGE_ERR, "failed to %s promisc"
1086 ", status %d", dev->flags&IFF_PROMISC ?
1087 "enable" : "disable", status);
703da5a1
RV		 1088 }
1089 }
1090
1091 memset(&mac_info, 0, sizeof(struct macInfo));
1092 /* Update individual M_CAST address list */
4cd24eaf 1093 if ((!vdev->all_multi_flg) && netdev_mc_count(dev)) {
703da5a1
RV		 1094 mcast_cnt = vdev->vpaths[0].mcast_addr_cnt;
1095 list_head = &vdev->vpaths[0].mac_addr_list;
4cd24eaf 1096 if ((netdev_mc_count(dev) +
703da5a1
RV		 1097 (vdev->vpaths[0].mac_addr_cnt - mcast_cnt)) >
1098 vdev->vpaths[0].max_mac_addr_cnt)
1099 goto _set_all_mcast;
1100
1101 /* Delete previous MC's */
1102 for (i = 0; i < mcast_cnt; i++) {
703da5a1 1103 list_for_each_safe(entry, next, list_head) {
703da5a1
RV		 1104 mac_entry = (struct vxge_mac_addrs *) entry;
1105 /* Copy the mac address to delete */
1106 mac_address = (u8 *)&mac_entry->macaddr;
1107 memcpy(mac_info.macaddr, mac_address, ETH_ALEN);
1108
1109 /* Is this a multicast address */
1110 if (0x01 & mac_info.macaddr[0]) {
1111 for (vpath_idx = 0; vpath_idx <
1112 vdev->no_of_vpath;
1113 vpath_idx++) {
1114 mac_info.vpath_no = vpath_idx;
1115 status = vxge_del_mac_addr(
1116 vdev,
1117 &mac_info);
1118 }
1119 }
1120 }
1121 }
1122
1123 /* Add new ones */
22bedad3
JP		 1124 netdev_for_each_mc_addr(ha, dev) {
1125 memcpy(mac_info.macaddr, ha->addr, ETH_ALEN);
703da5a1
RV		 1126 for (vpath_idx = 0; vpath_idx < vdev->no_of_vpath;
1127 vpath_idx++) {
1128 mac_info.vpath_no = vpath_idx;
1129 mac_info.state = VXGE_LL_MAC_ADDR_IN_DA_TABLE;
1130 status = vxge_add_mac_addr(vdev, &mac_info);
1131 if (status != VXGE_HW_OK) {
1132 vxge_debug_init(VXGE_ERR,
1133 "%s:%d Setting individual"
1134 "multicast address failed",
1135 __func__, __LINE__);
1136 goto _set_all_mcast;
1137 }
1138 }
1139 }
1140
1141 return;
1142_set_all_mcast:
1143 mcast_cnt = vdev->vpaths[0].mcast_addr_cnt;
1144 /* Delete previous MC's */
1145 for (i = 0; i < mcast_cnt; i++) {
703da5a1 1146 list_for_each_safe(entry, next, list_head) {
703da5a1
RV		 1147 mac_entry = (struct vxge_mac_addrs *) entry;
1148 /* Copy the mac address to delete */
1149 mac_address = (u8 *)&mac_entry->macaddr;
1150 memcpy(mac_info.macaddr, mac_address, ETH_ALEN);
1151
1152 /* Is this a multicast address */
1153 if (0x01 & mac_info.macaddr[0])
1154 break;
1155 }
1156
1157 for (vpath_idx = 0; vpath_idx < vdev->no_of_vpath;
1158 vpath_idx++) {
1159 mac_info.vpath_no = vpath_idx;
1160 status = vxge_del_mac_addr(vdev, &mac_info);
1161 }
1162 }
1163
1164 /* Enable all multicast */
1165 for (i = 0; i < vdev->no_of_vpath; i++) {
7adf7d1b
JM		 1166 vpath = &vdev->vpaths[i];
1167 vxge_assert(vpath->is_open);
1168
1169 status = vxge_hw_vpath_mcast_enable(vpath->handle);
703da5a1
RV		 1170 if (status != VXGE_HW_OK) {
1171 vxge_debug_init(VXGE_ERR,
1172 "%s:%d Enabling all multicasts failed",
1173 __func__, __LINE__);
1174 }
1175 vdev->all_multi_flg = 1;
1176 }
1177 dev->flags |= IFF_ALLMULTI;
1178 }
1179
1180 vxge_debug_entryexit(VXGE_TRACE,
1181 "%s:%d Exiting...", __func__, __LINE__);
1182}
1183
1184/**
1185 * vxge_set_mac_addr
1186 * @dev: pointer to the device structure
1187 *
1188 * Update entry "0" (default MAC addr)
1189 */
1190static int vxge_set_mac_addr(struct net_device *dev, void *p)
1191{
1192 struct sockaddr *addr = p;
1193 struct vxgedev *vdev;
1194 struct __vxge_hw_device *hldev;
1195 enum vxge_hw_status status = VXGE_HW_OK;
1196 struct macInfo mac_info_new, mac_info_old;
1197 int vpath_idx = 0;
1198
1199 vxge_debug_entryexit(VXGE_TRACE, "%s:%d", __func__, __LINE__);
1200
1201 vdev = (struct vxgedev *)netdev_priv(dev);
1202 hldev = vdev->devh;
1203
1204 if (!is_valid_ether_addr(addr->sa_data))
1205 return -EINVAL;
1206
1207 memset(&mac_info_new, 0, sizeof(struct macInfo));
1208 memset(&mac_info_old, 0, sizeof(struct macInfo));
1209
1210 vxge_debug_entryexit(VXGE_TRACE, "%s:%d Exiting...",
1211 __func__, __LINE__);
1212
1213 /* Get the old address */
1214 memcpy(mac_info_old.macaddr, dev->dev_addr, dev->addr_len);
1215
1216 /* Copy the new address */
1217 memcpy(mac_info_new.macaddr, addr->sa_data, dev->addr_len);
1218
1219 /* First delete the old mac address from all the vpaths
1220 as we can't specify the index while adding new mac address */
1221 for (vpath_idx = 0; vpath_idx < vdev->no_of_vpath; vpath_idx++) {
1222 struct vxge_vpath *vpath = &vdev->vpaths[vpath_idx];
1223 if (!vpath->is_open) {
1224 /* This can happen when this interface is added/removed
1225 to the bonding interface. Delete this station address
1226 from the linked list */
1227 vxge_mac_list_del(vpath, &mac_info_old);
1228
1229 /* Add this new address to the linked list
1230 for later restoring */
1231 vxge_mac_list_add(vpath, &mac_info_new);
1232
1233 continue;
1234 }
1235 /* Delete the station address */
1236 mac_info_old.vpath_no = vpath_idx;
1237 status = vxge_del_mac_addr(vdev, &mac_info_old);
1238 }
1239
1240 if (unlikely(!is_vxge_card_up(vdev))) {
1241 memcpy(dev->dev_addr, addr->sa_data, dev->addr_len);
1242 return VXGE_HW_OK;
1243 }
1244
1245 /* Set this mac address to all the vpaths */
1246 for (vpath_idx = 0; vpath_idx < vdev->no_of_vpath; vpath_idx++) {
1247 mac_info_new.vpath_no = vpath_idx;
1248 mac_info_new.state = VXGE_LL_MAC_ADDR_IN_DA_TABLE;
1249 status = vxge_add_mac_addr(vdev, &mac_info_new);
1250 if (status != VXGE_HW_OK)
1251 return -EINVAL;
1252 }
1253
1254 memcpy(dev->dev_addr, addr->sa_data, dev->addr_len);
1255
1256 return status;
1257}
1258
1259/*
1260 * vxge_vpath_intr_enable
1261 * @vdev: pointer to vdev
1262 * @vp_id: vpath for which to enable the interrupts
1263 *
1264 * Enables the interrupts for the vpath
1265*/
42821a5b 1266static void vxge_vpath_intr_enable(struct vxgedev *vdev, int vp_id)
703da5a1
RV		 1267{
1268 struct vxge_vpath *vpath = &vdev->vpaths[vp_id];
b59c9457
SH		 1269 int msix_id = 0;
1270 int tim_msix_id[4] = {0, 1, 0, 0};
1271 int alarm_msix_id = VXGE_ALARM_MSIX_ID;
703da5a1
RV		 1272
1273 vxge_hw_vpath_intr_enable(vpath->handle);
1274
1275 if (vdev->config.intr_type == INTA)
1276 vxge_hw_vpath_inta_unmask_tx_rx(vpath->handle);
1277 else {
703da5a1
RV		 1278 vxge_hw_vpath_msix_set(vpath->handle, tim_msix_id,
1279 alarm_msix_id);
1280
b59c9457 1281 msix_id = vpath->device_id * VXGE_HW_VPATH_MSIX_ACTIVE;
703da5a1
RV		 1282 vxge_hw_vpath_msix_unmask(vpath->handle, msix_id);
1283 vxge_hw_vpath_msix_unmask(vpath->handle, msix_id + 1);
1284
1285 /* enable the alarm vector */
b59c9457
SH		 1286 msix_id = (vpath->handle->vpath->hldev->first_vp_id *
1287 VXGE_HW_VPATH_MSIX_ACTIVE) + alarm_msix_id;
1288 vxge_hw_vpath_msix_unmask(vpath->handle, msix_id);
703da5a1
RV		 1289 }
1290}
1291
1292/*
1293 * vxge_vpath_intr_disable
1294 * @vdev: pointer to vdev
1295 * @vp_id: vpath for which to disable the interrupts
1296 *
1297 * Disables the interrupts for the vpath
1298*/
42821a5b 1299static void vxge_vpath_intr_disable(struct vxgedev *vdev, int vp_id)
703da5a1
RV		 1300{
1301 struct vxge_vpath *vpath = &vdev->vpaths[vp_id];
1302 int msix_id;
1303
1304 vxge_hw_vpath_intr_disable(vpath->handle);
1305
1306 if (vdev->config.intr_type == INTA)
1307 vxge_hw_vpath_inta_mask_tx_rx(vpath->handle);
1308 else {
b59c9457 1309 msix_id = vpath->device_id * VXGE_HW_VPATH_MSIX_ACTIVE;
703da5a1
RV		 1310 vxge_hw_vpath_msix_mask(vpath->handle, msix_id);
1311 vxge_hw_vpath_msix_mask(vpath->handle, msix_id + 1);
1312
1313 /* disable the alarm vector */
b59c9457
SH		 1314 msix_id = (vpath->handle->vpath->hldev->first_vp_id *
1315 VXGE_HW_VPATH_MSIX_ACTIVE) + VXGE_ALARM_MSIX_ID;
703da5a1
RV		 1316 vxge_hw_vpath_msix_mask(vpath->handle, msix_id);
1317 }
1318}
1319
1320/*
1321 * vxge_reset_vpath
1322 * @vdev: pointer to vdev
1323 * @vp_id: vpath to reset
1324 *
1325 * Resets the vpath
1326*/
1327static int vxge_reset_vpath(struct vxgedev *vdev, int vp_id)
1328{
1329 enum vxge_hw_status status = VXGE_HW_OK;
7adf7d1b 1330 struct vxge_vpath *vpath = &vdev->vpaths[vp_id];
703da5a1
RV		 1331 int ret = 0;
1332
1333 /* check if device is down already */
1334 if (unlikely(!is_vxge_card_up(vdev)))
1335 return 0;
1336
1337 /* is device reset already scheduled */
1338 if (test_bit(__VXGE_STATE_RESET_CARD, &vdev->state))
1339 return 0;
1340
7adf7d1b
JM		 1341 if (vpath->handle) {
1342 if (vxge_hw_vpath_reset(vpath->handle) == VXGE_HW_OK) {
703da5a1 1343 if (is_vxge_card_up(vdev) &&
7adf7d1b 1344 vxge_hw_vpath_recover_from_reset(vpath->handle)
703da5a1
RV		 1345 != VXGE_HW_OK) {
1346 vxge_debug_init(VXGE_ERR,
1347 "vxge_hw_vpath_recover_from_reset"
1348 "failed for vpath:%d", vp_id);
1349 return status;
1350 }
1351 } else {
1352 vxge_debug_init(VXGE_ERR,
1353 "vxge_hw_vpath_reset failed for"
1354 "vpath:%d", vp_id);
1355 return status;
1356 }
1357 } else
1358 return VXGE_HW_FAIL;
1359
7adf7d1b
JM		 1360 vxge_restore_vpath_mac_addr(vpath);
1361 vxge_restore_vpath_vid_table(vpath);
703da5a1
RV		 1362
1363 /* Enable all broadcast */
7adf7d1b
JM		 1364 vxge_hw_vpath_bcast_enable(vpath->handle);
1365
1366 /* Enable all multicast */
1367 if (vdev->all_multi_flg) {
1368 status = vxge_hw_vpath_mcast_enable(vpath->handle);
1369 if (status != VXGE_HW_OK)
1370 vxge_debug_init(VXGE_ERR,
1371 "%s:%d Enabling multicast failed",
1372 __func__, __LINE__);
1373 }
703da5a1
RV		 1374
1375 /* Enable the interrupts */
1376 vxge_vpath_intr_enable(vdev, vp_id);
1377
1378 smp_wmb();
1379
1380 /* Enable the flow of traffic through the vpath */
7adf7d1b 1381 vxge_hw_vpath_enable(vpath->handle);
703da5a1
RV		 1382
1383 smp_wmb();
7adf7d1b
JM		 1384 vxge_hw_vpath_rx_doorbell_init(vpath->handle);
1385 vpath->ring.last_status = VXGE_HW_OK;
703da5a1
RV		 1386
1387 /* Vpath reset done */
1388 clear_bit(vp_id, &vdev->vp_reset);
1389
1390 /* Start the vpath queue */
98f45da2
JM		 1391 if (netif_tx_queue_stopped(vpath->fifo.txq))
1392 netif_tx_wake_queue(vpath->fifo.txq);
703da5a1
RV		 1393
1394 return ret;
1395}
1396
1397static int do_vxge_reset(struct vxgedev *vdev, int event)
1398{
1399 enum vxge_hw_status status;
1400 int ret = 0, vp_id, i;
1401
1402 vxge_debug_entryexit(VXGE_TRACE, "%s:%d", __func__, __LINE__);
1403
1404 if ((event == VXGE_LL_FULL_RESET) || (event == VXGE_LL_START_RESET)) {
1405 /* check if device is down already */
1406 if (unlikely(!is_vxge_card_up(vdev)))
1407 return 0;
1408
1409 /* is reset already scheduled */
1410 if (test_and_set_bit(__VXGE_STATE_RESET_CARD, &vdev->state))
1411 return 0;
1412 }
1413
1414 if (event == VXGE_LL_FULL_RESET) {
1415 /* wait for all the vpath reset to complete */
1416 for (vp_id = 0; vp_id < vdev->no_of_vpath; vp_id++) {
1417 while (test_bit(vp_id, &vdev->vp_reset))
1418 msleep(50);
1419 }
1420
1421 /* if execution mode is set to debug, don't reset the adapter */
1422 if (unlikely(vdev->exec_mode)) {
1423 vxge_debug_init(VXGE_ERR,
1424 "%s: execution mode is debug, returning..",
1425 vdev->ndev->name);
7adf7d1b
JM		 1426 clear_bit(__VXGE_STATE_CARD_UP, &vdev->state);
1427 netif_tx_stop_all_queues(vdev->ndev);
1428 return 0;
703da5a1
RV		 1429 }
1430 }
1431
1432 if (event == VXGE_LL_FULL_RESET) {
1433 vxge_hw_device_intr_disable(vdev->devh);
1434
1435 switch (vdev->cric_err_event) {
1436 case VXGE_HW_EVENT_UNKNOWN:
d03848e0 1437 netif_tx_stop_all_queues(vdev->ndev);
703da5a1
RV		 1438 vxge_debug_init(VXGE_ERR,
1439 "fatal: %s: Disabling device due to"
1440 "unknown error",
1441 vdev->ndev->name);
1442 ret = -EPERM;
1443 goto out;
1444 case VXGE_HW_EVENT_RESET_START:
1445 break;
1446 case VXGE_HW_EVENT_RESET_COMPLETE:
1447 case VXGE_HW_EVENT_LINK_DOWN:
1448 case VXGE_HW_EVENT_LINK_UP:
1449 case VXGE_HW_EVENT_ALARM_CLEARED:
1450 case VXGE_HW_EVENT_ECCERR:
1451 case VXGE_HW_EVENT_MRPCIM_ECCERR:
1452 ret = -EPERM;
1453 goto out;
1454 case VXGE_HW_EVENT_FIFO_ERR:
1455 case VXGE_HW_EVENT_VPATH_ERR:
1456 break;
1457 case VXGE_HW_EVENT_CRITICAL_ERR:
d03848e0 1458 netif_tx_stop_all_queues(vdev->ndev);
703da5a1
RV		 1459 vxge_debug_init(VXGE_ERR,
1460 "fatal: %s: Disabling device due to"
1461 "serious error",
1462 vdev->ndev->name);
1463 /* SOP or device reset required */
1464 /* This event is not currently used */
1465 ret = -EPERM;
1466 goto out;
1467 case VXGE_HW_EVENT_SERR:
d03848e0 1468 netif_tx_stop_all_queues(vdev->ndev);
703da5a1
RV		 1469 vxge_debug_init(VXGE_ERR,
1470 "fatal: %s: Disabling device due to"
1471 "serious error",
1472 vdev->ndev->name);
1473 ret = -EPERM;
1474 goto out;
1475 case VXGE_HW_EVENT_SRPCIM_SERR:
1476 case VXGE_HW_EVENT_MRPCIM_SERR:
1477 ret = -EPERM;
1478 goto out;
1479 case VXGE_HW_EVENT_SLOT_FREEZE:
d03848e0 1480 netif_tx_stop_all_queues(vdev->ndev);
703da5a1
RV		 1481 vxge_debug_init(VXGE_ERR,
1482 "fatal: %s: Disabling device due to"
1483 "slot freeze",
1484 vdev->ndev->name);
1485 ret = -EPERM;
1486 goto out;
1487 default:
1488 break;
1489
1490 }
1491 }
1492
1493 if ((event == VXGE_LL_FULL_RESET) || (event == VXGE_LL_START_RESET))
d03848e0 1494 netif_tx_stop_all_queues(vdev->ndev);
703da5a1
RV		 1495
1496 if (event == VXGE_LL_FULL_RESET) {
1497 status = vxge_reset_all_vpaths(vdev);
1498 if (status != VXGE_HW_OK) {
1499 vxge_debug_init(VXGE_ERR,
1500 "fatal: %s: can not reset vpaths",
1501 vdev->ndev->name);
1502 ret = -EPERM;
1503 goto out;
1504 }
1505 }
1506
1507 if (event == VXGE_LL_COMPL_RESET) {
1508 for (i = 0; i < vdev->no_of_vpath; i++)
1509 if (vdev->vpaths[i].handle) {
1510 if (vxge_hw_vpath_recover_from_reset(
1511 vdev->vpaths[i].handle)
1512 != VXGE_HW_OK) {
1513 vxge_debug_init(VXGE_ERR,
1514 "vxge_hw_vpath_recover_"
1515 "from_reset failed for vpath: "
1516 "%d", i);
1517 ret = -EPERM;
1518 goto out;
1519 }
1520 } else {
1521 vxge_debug_init(VXGE_ERR,
1522 "vxge_hw_vpath_reset failed for "
1523 "vpath:%d", i);
1524 ret = -EPERM;
1525 goto out;
1526 }
1527 }
1528
1529 if ((event == VXGE_LL_FULL_RESET) || (event == VXGE_LL_COMPL_RESET)) {
1530 /* Reprogram the DA table with populated mac addresses */
1531 for (vp_id = 0; vp_id < vdev->no_of_vpath; vp_id++) {
1532 vxge_restore_vpath_mac_addr(&vdev->vpaths[vp_id]);
1533 vxge_restore_vpath_vid_table(&vdev->vpaths[vp_id]);
1534 }
1535
1536 /* enable vpath interrupts */
1537 for (i = 0; i < vdev->no_of_vpath; i++)
1538 vxge_vpath_intr_enable(vdev, i);
1539
1540 vxge_hw_device_intr_enable(vdev->devh);
1541
1542 smp_wmb();
1543
1544 /* Indicate card up */
1545 set_bit(__VXGE_STATE_CARD_UP, &vdev->state);
1546
1547 /* Get the traffic to flow through the vpaths */
1548 for (i = 0; i < vdev->no_of_vpath; i++) {
1549 vxge_hw_vpath_enable(vdev->vpaths[i].handle);
1550 smp_wmb();
1551 vxge_hw_vpath_rx_doorbell_init(vdev->vpaths[i].handle);
1552 }
1553
d03848e0 1554 netif_tx_wake_all_queues(vdev->ndev);
703da5a1
RV		 1555 }
1556
1557out:
1558 vxge_debug_entryexit(VXGE_TRACE,
1559 "%s:%d Exiting...", __func__, __LINE__);
1560
1561 /* Indicate reset done */
1562 if ((event == VXGE_LL_FULL_RESET) || (event == VXGE_LL_COMPL_RESET))
1563 clear_bit(__VXGE_STATE_RESET_CARD, &vdev->state);
1564 return ret;
1565}
1566
1567/*
1568 * vxge_reset
1569 * @vdev: pointer to ll device
1570 *
1571 * driver may reset the chip on events of serr, eccerr, etc
1572 */
42821a5b 1573static int vxge_reset(struct vxgedev *vdev)
703da5a1 1574{
7adf7d1b 1575 return do_vxge_reset(vdev, VXGE_LL_FULL_RESET);
703da5a1
RV		 1576}
1577
1578/**
1579 * vxge_poll - Receive handler when Receive Polling is used.
1580 * @dev: pointer to the device structure.
1581 * @budget: Number of packets budgeted to be processed in this iteration.
1582 *
1583 * This function comes into picture only if Receive side is being handled
1584 * through polling (called NAPI in linux). It mostly does what the normal
1585 * Rx interrupt handler does in terms of descriptor and packet processing
1586 * but not in an interrupt context. Also it will process a specified number
1587 * of packets at most in one iteration. This value is passed down by the
1588 * kernel as the function argument 'budget'.
1589 */
1590static int vxge_poll_msix(struct napi_struct *napi, int budget)
1591{
1592 struct vxge_ring *ring =
1593 container_of(napi, struct vxge_ring, napi);
1594 int budget_org = budget;
1595 ring->budget = budget;
1596
1597 vxge_hw_vpath_poll_rx(ring->handle);
1598
1599 if (ring->pkts_processed < budget_org) {
1600 napi_complete(napi);
1601 /* Re enable the Rx interrupts for the vpath */
1602 vxge_hw_channel_msix_unmask(
1603 (struct __vxge_hw_channel *)ring->handle,
1604 ring->rx_vector_no);
1605 }
1606
1607 return ring->pkts_processed;
1608}
1609
1610static int vxge_poll_inta(struct napi_struct *napi, int budget)
1611{
1612 struct vxgedev *vdev = container_of(napi, struct vxgedev, napi);
1613 int pkts_processed = 0;
1614 int i;
1615 int budget_org = budget;
1616 struct vxge_ring *ring;
1617
1618 struct __vxge_hw_device *hldev = (struct __vxge_hw_device *)
1619 pci_get_drvdata(vdev->pdev);
1620
1621 for (i = 0; i < vdev->no_of_vpath; i++) {
1622 ring = &vdev->vpaths[i].ring;
1623 ring->budget = budget;
1624 vxge_hw_vpath_poll_rx(ring->handle);
1625 pkts_processed += ring->pkts_processed;
1626 budget -= ring->pkts_processed;
1627 if (budget <= 0)
1628 break;
1629 }
1630
1631 VXGE_COMPLETE_ALL_TX(vdev);
1632
1633 if (pkts_processed < budget_org) {
1634 napi_complete(napi);
1635 /* Re enable the Rx interrupts for the ring */
1636 vxge_hw_device_unmask_all(hldev);
1637 vxge_hw_device_flush_io(hldev);
1638 }
1639
1640 return pkts_processed;
1641}
1642
1643#ifdef CONFIG_NET_POLL_CONTROLLER
1644/**
1645 * vxge_netpoll - netpoll event handler entry point
1646 * @dev : pointer to the device structure.
1647 * Description:
1648 * This function will be called by upper layer to check for events on the
1649 * interface in situations where interrupts are disabled. It is used for
1650 * specific in-kernel networking tasks, such as remote consoles and kernel
1651 * debugging over the network (example netdump in RedHat).
1652 */
1653static void vxge_netpoll(struct net_device *dev)
1654{
1655 struct __vxge_hw_device *hldev;
1656 struct vxgedev *vdev;
1657
1658 vdev = (struct vxgedev *)netdev_priv(dev);
1659 hldev = (struct __vxge_hw_device *)pci_get_drvdata(vdev->pdev);
1660
1661 vxge_debug_entryexit(VXGE_TRACE, "%s:%d", __func__, __LINE__);
1662
1663 if (pci_channel_offline(vdev->pdev))
1664 return;
1665
1666 disable_irq(dev->irq);
1667 vxge_hw_device_clear_tx_rx(hldev);
1668
1669 vxge_hw_device_clear_tx_rx(hldev);
1670 VXGE_COMPLETE_ALL_RX(vdev);
1671 VXGE_COMPLETE_ALL_TX(vdev);
1672
1673 enable_irq(dev->irq);
1674
1675 vxge_debug_entryexit(VXGE_TRACE,
1676 "%s:%d Exiting...", __func__, __LINE__);
703da5a1
RV		 1677}
1678#endif
1679
1680/* RTH configuration */
1681static enum vxge_hw_status vxge_rth_configure(struct vxgedev *vdev)
1682{
1683 enum vxge_hw_status status = VXGE_HW_OK;
1684 struct vxge_hw_rth_hash_types hash_types;
1685 u8 itable[256] = {0}; /* indirection table */
1686 u8 mtable[256] = {0}; /* CPU to vpath mapping */
1687 int index;
1688
1689 /*
1690 * Filling
1691 * - itable with bucket numbers
1692 * - mtable with bucket-to-vpath mapping
1693 */
1694 for (index = 0; index < (1 << vdev->config.rth_bkt_sz); index++) {
1695 itable[index] = index;
1696 mtable[index] = index % vdev->no_of_vpath;
1697 }
1698
703da5a1
RV		 1699 /* set indirection table, bucket-to-vpath mapping */
1700 status = vxge_hw_vpath_rts_rth_itable_set(vdev->vp_handles,
1701 vdev->no_of_vpath,
1702 mtable, itable,
1703 vdev->config.rth_bkt_sz);
1704 if (status != VXGE_HW_OK) {
1705 vxge_debug_init(VXGE_ERR,
1706 "RTH indirection table configuration failed "
1707 "for vpath:%d", vdev->vpaths[0].device_id);
1708 return status;
1709 }
1710
47f01db4
JM		 1711 /* Fill RTH hash types */
1712 hash_types.hash_type_tcpipv4_en = vdev->config.rth_hash_type_tcpipv4;
1713 hash_types.hash_type_ipv4_en = vdev->config.rth_hash_type_ipv4;
1714 hash_types.hash_type_tcpipv6_en = vdev->config.rth_hash_type_tcpipv6;
1715 hash_types.hash_type_ipv6_en = vdev->config.rth_hash_type_ipv6;
1716 hash_types.hash_type_tcpipv6ex_en =
1717 vdev->config.rth_hash_type_tcpipv6ex;
1718 hash_types.hash_type_ipv6ex_en = vdev->config.rth_hash_type_ipv6ex;
1719
703da5a1 1720 /*
47f01db4
JM		 1721 * Because the itable_set() method uses the active_table field
1722 * for the target virtual path the RTH config should be updated
1723 * for all VPATHs. The h/w only uses the lowest numbered VPATH
1724 * when steering frames.
1725 */
703da5a1
RV		 1726 for (index = 0; index < vdev->no_of_vpath; index++) {
1727 status = vxge_hw_vpath_rts_rth_set(
1728 vdev->vpaths[index].handle,
1729 vdev->config.rth_algorithm,
1730 &hash_types,
1731 vdev->config.rth_bkt_sz);
1732
1733 if (status != VXGE_HW_OK) {
1734 vxge_debug_init(VXGE_ERR,
1735 "RTH configuration failed for vpath:%d",
1736 vdev->vpaths[index].device_id);
1737 return status;
1738 }
1739 }
1740
1741 return status;
1742}
1743
42821a5b 1744static int vxge_mac_list_add(struct vxge_vpath *vpath, struct macInfo *mac)
703da5a1
RV		 1745{
1746 struct vxge_mac_addrs *new_mac_entry;
1747 u8 *mac_address = NULL;
1748
1749 if (vpath->mac_addr_cnt >= VXGE_MAX_LEARN_MAC_ADDR_CNT)
1750 return TRUE;
1751
1752 new_mac_entry = kzalloc(sizeof(struct vxge_mac_addrs), GFP_ATOMIC);
1753 if (!new_mac_entry) {
1754 vxge_debug_mem(VXGE_ERR,
1755 "%s: memory allocation failed",
1756 VXGE_DRIVER_NAME);
1757 return FALSE;
1758 }
1759
1760 list_add(&new_mac_entry->item, &vpath->mac_addr_list);
1761
1762 /* Copy the new mac address to the list */
1763 mac_address = (u8 *)&new_mac_entry->macaddr;
1764 memcpy(mac_address, mac->macaddr, ETH_ALEN);
1765
1766 new_mac_entry->state = mac->state;
1767 vpath->mac_addr_cnt++;
1768
1769 /* Is this a multicast address */
1770 if (0x01 & mac->macaddr[0])
1771 vpath->mcast_addr_cnt++;
1772
1773 return TRUE;
1774}
1775
1776/* Add a mac address to DA table */
42821a5b 1777static enum vxge_hw_status vxge_add_mac_addr(struct vxgedev *vdev,
1778 struct macInfo *mac)
703da5a1
RV		 1779{
1780 enum vxge_hw_status status = VXGE_HW_OK;
1781 struct vxge_vpath *vpath;
1782 enum vxge_hw_vpath_mac_addr_add_mode duplicate_mode;
1783
1784 if (0x01 & mac->macaddr[0]) /* multicast address */
1785 duplicate_mode = VXGE_HW_VPATH_MAC_ADDR_ADD_DUPLICATE;
1786 else
1787 duplicate_mode = VXGE_HW_VPATH_MAC_ADDR_REPLACE_DUPLICATE;
1788
1789 vpath = &vdev->vpaths[mac->vpath_no];
1790 status = vxge_hw_vpath_mac_addr_add(vpath->handle, mac->macaddr,
1791 mac->macmask, duplicate_mode);
1792 if (status != VXGE_HW_OK) {
1793 vxge_debug_init(VXGE_ERR,
1794 "DA config add entry failed for vpath:%d",
1795 vpath->device_id);
1796 } else
1797 if (FALSE == vxge_mac_list_add(vpath, mac))
1798 status = -EPERM;
1799
1800 return status;
1801}
1802
42821a5b 1803static int vxge_mac_list_del(struct vxge_vpath *vpath, struct macInfo *mac)
703da5a1
RV		 1804{
1805 struct list_head *entry, *next;
1806 u64 del_mac = 0;
1807 u8 *mac_address = (u8 *) (&del_mac);
1808
1809 /* Copy the mac address to delete from the list */
1810 memcpy(mac_address, mac->macaddr, ETH_ALEN);
1811
1812 list_for_each_safe(entry, next, &vpath->mac_addr_list) {
1813 if (((struct vxge_mac_addrs *)entry)->macaddr == del_mac) {
1814 list_del(entry);
1815 kfree((struct vxge_mac_addrs *)entry);
1816 vpath->mac_addr_cnt--;
1817
1818 /* Is this a multicast address */
1819 if (0x01 & mac->macaddr[0])
1820 vpath->mcast_addr_cnt--;
1821 return TRUE;
1822 }
1823 }
1824
1825 return FALSE;
1826}
1827/* delete a mac address from DA table */
42821a5b 1828static enum vxge_hw_status vxge_del_mac_addr(struct vxgedev *vdev,
1829 struct macInfo *mac)
703da5a1
RV		 1830{
1831 enum vxge_hw_status status = VXGE_HW_OK;
1832 struct vxge_vpath *vpath;
1833
1834 vpath = &vdev->vpaths[mac->vpath_no];
1835 status = vxge_hw_vpath_mac_addr_delete(vpath->handle, mac->macaddr,
1836 mac->macmask);
1837 if (status != VXGE_HW_OK) {
1838 vxge_debug_init(VXGE_ERR,
1839 "DA config delete entry failed for vpath:%d",
1840 vpath->device_id);
1841 } else
1842 vxge_mac_list_del(vpath, mac);
1843 return status;
1844}
1845
1846/* list all mac addresses from DA table */
1847enum vxge_hw_status
1848static vxge_search_mac_addr_in_da_table(struct vxge_vpath *vpath,
1849 struct macInfo *mac)
1850{
1851 enum vxge_hw_status status = VXGE_HW_OK;
1852 unsigned char macmask[ETH_ALEN];
1853 unsigned char macaddr[ETH_ALEN];
1854
1855 status = vxge_hw_vpath_mac_addr_get(vpath->handle,
1856 macaddr, macmask);
1857 if (status != VXGE_HW_OK) {
1858 vxge_debug_init(VXGE_ERR,
1859 "DA config list entry failed for vpath:%d",
1860 vpath->device_id);
1861 return status;
1862 }
1863
1864 while (memcmp(mac->macaddr, macaddr, ETH_ALEN)) {
1865
1866 status = vxge_hw_vpath_mac_addr_get_next(vpath->handle,
1867 macaddr, macmask);
1868 if (status != VXGE_HW_OK)
1869 break;
1870 }
1871
1872 return status;
1873}
1874
1875/* Store all vlan ids from the list to the vid table */
42821a5b 1876static enum vxge_hw_status vxge_restore_vpath_vid_table(struct vxge_vpath *vpath)
703da5a1
RV		 1877{
1878 enum vxge_hw_status status = VXGE_HW_OK;
1879 struct vxgedev *vdev = vpath->vdev;
1880 u16 vid;
1881
1882 if (vdev->vlgrp && vpath->is_open) {
1883
b738127d 1884 for (vid = 0; vid < VLAN_N_VID; vid++) {
703da5a1
RV		 1885 if (!vlan_group_get_device(vdev->vlgrp, vid))
1886 continue;
1887 /* Add these vlan to the vid table */
1888 status = vxge_hw_vpath_vid_add(vpath->handle, vid);
1889 }
1890 }
1891
1892 return status;
1893}
1894
1895/* Store all mac addresses from the list to the DA table */
42821a5b 1896static enum vxge_hw_status vxge_restore_vpath_mac_addr(struct vxge_vpath *vpath)
703da5a1
RV		 1897{
1898 enum vxge_hw_status status = VXGE_HW_OK;
1899 struct macInfo mac_info;
1900 u8 *mac_address = NULL;
1901 struct list_head *entry, *next;
1902
1903 memset(&mac_info, 0, sizeof(struct macInfo));
1904
1905 if (vpath->is_open) {
1906
1907 list_for_each_safe(entry, next, &vpath->mac_addr_list) {
1908 mac_address =
1909 (u8 *)&
1910 ((struct vxge_mac_addrs *)entry)->macaddr;
1911 memcpy(mac_info.macaddr, mac_address, ETH_ALEN);
1912 ((struct vxge_mac_addrs *)entry)->state =
1913 VXGE_LL_MAC_ADDR_IN_DA_TABLE;
1914 /* does this mac address already exist in da table? */
1915 status = vxge_search_mac_addr_in_da_table(vpath,
1916 &mac_info);
1917 if (status != VXGE_HW_OK) {
1918 /* Add this mac address to the DA table */
1919 status = vxge_hw_vpath_mac_addr_add(
1920 vpath->handle, mac_info.macaddr,
1921 mac_info.macmask,
1922 VXGE_HW_VPATH_MAC_ADDR_ADD_DUPLICATE);
1923 if (status != VXGE_HW_OK) {
1924 vxge_debug_init(VXGE_ERR,
1925 "DA add entry failed for vpath:%d",
1926 vpath->device_id);
1927 ((struct vxge_mac_addrs *)entry)->state
1928 = VXGE_LL_MAC_ADDR_IN_LIST;
1929 }
1930 }
1931 }
1932 }
1933
1934 return status;
1935}
1936
1937/* reset vpaths */
42821a5b 1938static enum vxge_hw_status vxge_reset_all_vpaths(struct vxgedev *vdev)
703da5a1 1939{
703da5a1 1940 enum vxge_hw_status status = VXGE_HW_OK;
7adf7d1b
JM		 1941 struct vxge_vpath *vpath;
1942 int i;
703da5a1 1943
7adf7d1b
JM		 1944 for (i = 0; i < vdev->no_of_vpath; i++) {
1945 vpath = &vdev->vpaths[i];
1946 if (vpath->handle) {
1947 if (vxge_hw_vpath_reset(vpath->handle) == VXGE_HW_OK) {
703da5a1
RV		 1948 if (is_vxge_card_up(vdev) &&
1949 vxge_hw_vpath_recover_from_reset(
7adf7d1b 1950 vpath->handle) != VXGE_HW_OK) {
703da5a1
RV		 1951 vxge_debug_init(VXGE_ERR,
1952 "vxge_hw_vpath_recover_"
1953 "from_reset failed for vpath: "
1954 "%d", i);
1955 return status;
1956 }
1957 } else {
1958 vxge_debug_init(VXGE_ERR,
1959 "vxge_hw_vpath_reset failed for "
1960 "vpath:%d", i);
1961 return status;
1962 }
1963 }
7adf7d1b
JM		 1964 }
1965
703da5a1
RV		 1966 return status;
1967}
1968
1969/* close vpaths */
42821a5b 1970static void vxge_close_vpaths(struct vxgedev *vdev, int index)
703da5a1 1971{
7adf7d1b 1972 struct vxge_vpath *vpath;
703da5a1 1973 int i;
7adf7d1b 1974
703da5a1 1975 for (i = index; i < vdev->no_of_vpath; i++) {
7adf7d1b
JM		 1976 vpath = &vdev->vpaths[i];
1977
1978 if (vpath->handle && vpath->is_open) {
1979 vxge_hw_vpath_close(vpath->handle);
703da5a1
RV		 1980 vdev->stats.vpaths_open--;
1981 }
7adf7d1b
JM		 1982 vpath->is_open = 0;
1983 vpath->handle = NULL;
703da5a1
RV		 1984 }
1985}
1986
1987/* open vpaths */
42821a5b 1988static int vxge_open_vpaths(struct vxgedev *vdev)
703da5a1 1989{
7adf7d1b 1990 struct vxge_hw_vpath_attr attr;
703da5a1 1991 enum vxge_hw_status status;
7adf7d1b 1992 struct vxge_vpath *vpath;
703da5a1 1993 u32 vp_id = 0;
7adf7d1b 1994 int i;
703da5a1
RV		 1995
1996 for (i = 0; i < vdev->no_of_vpath; i++) {
7adf7d1b
JM		 1997 vpath = &vdev->vpaths[i];
1998
1999 vxge_assert(vpath->is_configured);
2000 attr.vp_id = vpath->device_id;
703da5a1
RV		 2001 attr.fifo_attr.callback = vxge_xmit_compl;
2002 attr.fifo_attr.txdl_term = vxge_tx_term;
2003 attr.fifo_attr.per_txdl_space = sizeof(struct vxge_tx_priv);
7adf7d1b 2004 attr.fifo_attr.userdata = &vpath->fifo;
703da5a1
RV		 2005
2006 attr.ring_attr.callback = vxge_rx_1b_compl;
2007 attr.ring_attr.rxd_init = vxge_rx_initial_replenish;
2008 attr.ring_attr.rxd_term = vxge_rx_term;
2009 attr.ring_attr.per_rxd_space = sizeof(struct vxge_rx_priv);
7adf7d1b 2010 attr.ring_attr.userdata = &vpath->ring;
703da5a1 2011
7adf7d1b
JM		 2012 vpath->ring.ndev = vdev->ndev;
2013 vpath->ring.pdev = vdev->pdev;
2014 status = vxge_hw_vpath_open(vdev->devh, &attr, &vpath->handle);
703da5a1 2015 if (status == VXGE_HW_OK) {
7adf7d1b 2016 vpath->fifo.handle =
703da5a1 2017 (struct __vxge_hw_fifo *)attr.fifo_attr.userdata;
7adf7d1b 2018 vpath->ring.handle =
703da5a1 2019 (struct __vxge_hw_ring *)attr.ring_attr.userdata;
7adf7d1b 2020 vpath->fifo.tx_steering_type =
703da5a1 2021 vdev->config.tx_steering_type;
7adf7d1b
JM		 2022 vpath->fifo.ndev = vdev->ndev;
2023 vpath->fifo.pdev = vdev->pdev;
98f45da2
JM		 2024 if (vdev->config.tx_steering_type)
2025 vpath->fifo.txq =
2026 netdev_get_tx_queue(vdev->ndev, i);
2027 else
2028 vpath->fifo.txq =
2029 netdev_get_tx_queue(vdev->ndev, 0);
7adf7d1b 2030 vpath->fifo.indicate_max_pkts =
703da5a1 2031 vdev->config.fifo_indicate_max_pkts;
7adf7d1b
JM		 2032 vpath->ring.rx_vector_no = 0;
2033 vpath->ring.rx_csum = vdev->rx_csum;
2034 vpath->is_open = 1;
2035 vdev->vp_handles[i] = vpath->handle;
2036 vpath->ring.gro_enable = vdev->config.gro_enable;
2037 vpath->ring.vlan_tag_strip = vdev->vlan_tag_strip;
703da5a1
RV		 2038 vdev->stats.vpaths_open++;
2039 } else {
2040 vdev->stats.vpath_open_fail++;
2041 vxge_debug_init(VXGE_ERR,
2042 "%s: vpath: %d failed to open "
2043 "with status: %d",
7adf7d1b 2044 vdev->ndev->name, vpath->device_id,
703da5a1
RV		 2045 status);
2046 vxge_close_vpaths(vdev, 0);
2047 return -EPERM;
2048 }
2049
7adf7d1b 2050 vp_id = vpath->handle->vpath->vp_id;
703da5a1
RV		 2051 vdev->vpaths_deployed |= vxge_mBIT(vp_id);
2052 }
2053 return VXGE_HW_OK;
2054}
2055
2056/*
2057 * vxge_isr_napi
2058 * @irq: the irq of the device.
2059 * @dev_id: a void pointer to the hldev structure of the Titan device
2060 * @ptregs: pointer to the registers pushed on the stack.
2061 *
2062 * This function is the ISR handler of the device when napi is enabled. It
2063 * identifies the reason for the interrupt and calls the relevant service
2064 * routines.
2065 */
2066static irqreturn_t vxge_isr_napi(int irq, void *dev_id)
2067{
703da5a1 2068 struct net_device *dev;
a5d165b5 2069 struct __vxge_hw_device *hldev;
703da5a1
RV		 2070 u64 reason;
2071 enum vxge_hw_status status;
a5d165b5 2072 struct vxgedev *vdev = (struct vxgedev *) dev_id;;
703da5a1
RV		 2073
2074 vxge_debug_intr(VXGE_TRACE, "%s:%d", __func__, __LINE__);
2075
a5d165b5
SH		 2076 dev = vdev->ndev;
2077 hldev = (struct __vxge_hw_device *)pci_get_drvdata(vdev->pdev);
703da5a1
RV		 2078
2079 if (pci_channel_offline(vdev->pdev))
2080 return IRQ_NONE;
2081
2082 if (unlikely(!is_vxge_card_up(vdev)))
2083 return IRQ_NONE;
2084
2085 status = vxge_hw_device_begin_irq(hldev, vdev->exec_mode,
2086 &reason);
2087 if (status == VXGE_HW_OK) {
2088 vxge_hw_device_mask_all(hldev);
2089
2090 if (reason &
2091 VXGE_HW_TITAN_GENERAL_INT_STATUS_VPATH_TRAFFIC_INT(
2092 vdev->vpaths_deployed >>
2093 (64 - VXGE_HW_MAX_VIRTUAL_PATHS))) {
2094
2095 vxge_hw_device_clear_tx_rx(hldev);
2096 napi_schedule(&vdev->napi);
2097 vxge_debug_intr(VXGE_TRACE,
2098 "%s:%d Exiting...", __func__, __LINE__);
2099 return IRQ_HANDLED;
2100 } else
2101 vxge_hw_device_unmask_all(hldev);
2102 } else if (unlikely((status == VXGE_HW_ERR_VPATH) ||
2103 (status == VXGE_HW_ERR_CRITICAL) ||
2104 (status == VXGE_HW_ERR_FIFO))) {
2105 vxge_hw_device_mask_all(hldev);
2106 vxge_hw_device_flush_io(hldev);
2107 return IRQ_HANDLED;
2108 } else if (unlikely(status == VXGE_HW_ERR_SLOT_FREEZE))
2109 return IRQ_HANDLED;
2110
2111 vxge_debug_intr(VXGE_TRACE, "%s:%d Exiting...", __func__, __LINE__);
2112 return IRQ_NONE;
2113}
2114
2115#ifdef CONFIG_PCI_MSI
2116
2117static irqreturn_t
2118vxge_tx_msix_handle(int irq, void *dev_id)
2119{
2120 struct vxge_fifo *fifo = (struct vxge_fifo *)dev_id;
2121
2122 VXGE_COMPLETE_VPATH_TX(fifo);
2123
2124 return IRQ_HANDLED;
2125}
2126
2127static irqreturn_t
2128vxge_rx_msix_napi_handle(int irq, void *dev_id)
2129{
2130 struct vxge_ring *ring = (struct vxge_ring *)dev_id;
2131
2132 /* MSIX_IDX for Rx is 1 */
2133 vxge_hw_channel_msix_mask((struct __vxge_hw_channel *)ring->handle,
2134 ring->rx_vector_no);
2135
2136 napi_schedule(&ring->napi);
2137 return IRQ_HANDLED;
2138}
2139
2140static irqreturn_t
2141vxge_alarm_msix_handle(int irq, void *dev_id)
2142{
2143 int i;
2144 enum vxge_hw_status status;
2145 struct vxge_vpath *vpath = (struct vxge_vpath *)dev_id;
2146 struct vxgedev *vdev = vpath->vdev;
b59c9457
SH		 2147 int msix_id = (vpath->handle->vpath->vp_id *
2148 VXGE_HW_VPATH_MSIX_ACTIVE) + VXGE_ALARM_MSIX_ID;
703da5a1
RV		 2149
2150 for (i = 0; i < vdev->no_of_vpath; i++) {
b59c9457 2151 vxge_hw_vpath_msix_mask(vdev->vpaths[i].handle, msix_id);
703da5a1
RV		 2152
2153 status = vxge_hw_vpath_alarm_process(vdev->vpaths[i].handle,
2154 vdev->exec_mode);
2155 if (status == VXGE_HW_OK) {
2156
2157 vxge_hw_vpath_msix_unmask(vdev->vpaths[i].handle,
b59c9457 2158 msix_id);
703da5a1
RV		 2159 continue;
2160 }
2161 vxge_debug_intr(VXGE_ERR,
2162 "%s: vxge_hw_vpath_alarm_process failed %x ",
2163 VXGE_DRIVER_NAME, status);
2164 }
2165 return IRQ_HANDLED;
2166}
2167
2168static int vxge_alloc_msix(struct vxgedev *vdev)
2169{
2170 int j, i, ret = 0;
b59c9457 2171 int msix_intr_vect = 0, temp;
703da5a1
RV		 2172 vdev->intr_cnt = 0;
2173
b59c9457 2174start:
703da5a1
RV		 2175 /* Tx/Rx MSIX Vectors count */
2176 vdev->intr_cnt = vdev->no_of_vpath * 2;
2177
2178 /* Alarm MSIX Vectors count */
2179 vdev->intr_cnt++;
2180
baeb2ffa
JP		 2181 vdev->entries = kcalloc(vdev->intr_cnt, sizeof(struct msix_entry),
2182 GFP_KERNEL);
703da5a1
RV		 2183 if (!vdev->entries) {
2184 vxge_debug_init(VXGE_ERR,
2185 "%s: memory allocation failed",
2186 VXGE_DRIVER_NAME);
cc413d90
MS		 2187 ret = -ENOMEM;
2188 goto alloc_entries_failed;
703da5a1
RV		 2189 }
2190
baeb2ffa
JP		 2191 vdev->vxge_entries = kcalloc(vdev->intr_cnt,
2192 sizeof(struct vxge_msix_entry),
2193 GFP_KERNEL);
703da5a1
RV		 2194 if (!vdev->vxge_entries) {
2195 vxge_debug_init(VXGE_ERR, "%s: memory allocation failed",
2196 VXGE_DRIVER_NAME);
cc413d90
MS		 2197 ret = -ENOMEM;
2198 goto alloc_vxge_entries_failed;
703da5a1
RV		 2199 }
2200
b59c9457 2201 for (i = 0, j = 0; i < vdev->no_of_vpath; i++) {
703da5a1
RV		 2202
2203 msix_intr_vect = i * VXGE_HW_VPATH_MSIX_ACTIVE;
2204
2205 /* Initialize the fifo vector */
2206 vdev->entries[j].entry = msix_intr_vect;
2207 vdev->vxge_entries[j].entry = msix_intr_vect;
2208 vdev->vxge_entries[j].in_use = 0;
2209 j++;
2210
2211 /* Initialize the ring vector */
2212 vdev->entries[j].entry = msix_intr_vect + 1;
2213 vdev->vxge_entries[j].entry = msix_intr_vect + 1;
2214 vdev->vxge_entries[j].in_use = 0;
2215 j++;
2216 }
2217
2218 /* Initialize the alarm vector */
b59c9457
SH		 2219 vdev->entries[j].entry = VXGE_ALARM_MSIX_ID;
2220 vdev->vxge_entries[j].entry = VXGE_ALARM_MSIX_ID;
703da5a1
RV		 2221 vdev->vxge_entries[j].in_use = 0;
2222
b59c9457 2223 ret = pci_enable_msix(vdev->pdev, vdev->entries, vdev->intr_cnt);
b59c9457 2224 if (ret > 0) {
703da5a1
RV		 2225 vxge_debug_init(VXGE_ERR,
2226 "%s: MSI-X enable failed for %d vectors, ret: %d",
b59c9457 2227 VXGE_DRIVER_NAME, vdev->intr_cnt, ret);
cc413d90
MS		 2228 if ((max_config_vpath != VXGE_USE_DEFAULT) || (ret < 3)) {
2229 ret = -ENODEV;
2230 goto enable_msix_failed;
2231 }
2232
703da5a1
RV		 2233 kfree(vdev->entries);
2234 kfree(vdev->vxge_entries);
2235 vdev->entries = NULL;
2236 vdev->vxge_entries = NULL;
b59c9457
SH		 2237 /* Try with less no of vector by reducing no of vpaths count */
2238 temp = (ret - 1)/2;
2239 vxge_close_vpaths(vdev, temp);
2240 vdev->no_of_vpath = temp;
2241 goto start;
cc413d90
MS		 2242 } else if (ret < 0) {
2243 ret = -ENODEV;
2244 goto enable_msix_failed;
2245 }
703da5a1 2246 return 0;
cc413d90
MS		 2247
2248enable_msix_failed:
2249 kfree(vdev->vxge_entries);
2250alloc_vxge_entries_failed:
2251 kfree(vdev->entries);
2252alloc_entries_failed:
2253 return ret;
703da5a1
RV		 2254}
2255
2256static int vxge_enable_msix(struct vxgedev *vdev)
2257{
2258
2259 int i, ret = 0;
703da5a1 2260 /* 0 - Tx, 1 - Rx */
b59c9457
SH		 2261 int tim_msix_id[4] = {0, 1, 0, 0};
2262
703da5a1
RV		 2263 vdev->intr_cnt = 0;
2264
2265 /* allocate msix vectors */
2266 ret = vxge_alloc_msix(vdev);
2267 if (!ret) {
703da5a1 2268 for (i = 0; i < vdev->no_of_vpath; i++) {
7adf7d1b 2269 struct vxge_vpath *vpath = &vdev->vpaths[i];
703da5a1 2270
7adf7d1b
JM		 2271 /* If fifo or ring are not enabled, the MSIX vector for
2272 * it should be set to 0.
2273 */
2274 vpath->ring.rx_vector_no = (vpath->device_id *
2275 VXGE_HW_VPATH_MSIX_ACTIVE) + 1;
703da5a1 2276
7adf7d1b
JM		 2277 vxge_hw_vpath_msix_set(vpath->handle, tim_msix_id,
2278 VXGE_ALARM_MSIX_ID);
703da5a1
RV		 2279 }
2280 }
2281
2282 return ret;
2283}
2284
2285static void vxge_rem_msix_isr(struct vxgedev *vdev)
2286{
2287 int intr_cnt;
2288
b59c9457 2289 for (intr_cnt = 0; intr_cnt < (vdev->no_of_vpath * 2 + 1);
703da5a1
RV		 2290 intr_cnt++) {
2291 if (vdev->vxge_entries[intr_cnt].in_use) {
2292 synchronize_irq(vdev->entries[intr_cnt].vector);
2293 free_irq(vdev->entries[intr_cnt].vector,
2294 vdev->vxge_entries[intr_cnt].arg);
2295 vdev->vxge_entries[intr_cnt].in_use = 0;
2296 }
2297 }
2298
2299 kfree(vdev->entries);
2300 kfree(vdev->vxge_entries);
2301 vdev->entries = NULL;
2302 vdev->vxge_entries = NULL;
2303
2304 if (vdev->config.intr_type == MSI_X)
2305 pci_disable_msix(vdev->pdev);
2306}
2307#endif
2308
2309static void vxge_rem_isr(struct vxgedev *vdev)
2310{
2311 struct __vxge_hw_device *hldev;
2312 hldev = (struct __vxge_hw_device *) pci_get_drvdata(vdev->pdev);
2313
2314#ifdef CONFIG_PCI_MSI
2315 if (vdev->config.intr_type == MSI_X) {
2316 vxge_rem_msix_isr(vdev);
2317 } else
2318#endif
2319 if (vdev->config.intr_type == INTA) {
2320 synchronize_irq(vdev->pdev->irq);
a5d165b5 2321 free_irq(vdev->pdev->irq, vdev);
703da5a1
RV		 2322 }
2323}
2324
2325static int vxge_add_isr(struct vxgedev *vdev)
2326{
2327 int ret = 0;
703da5a1
RV		 2328#ifdef CONFIG_PCI_MSI
2329 int vp_idx = 0, intr_idx = 0, intr_cnt = 0, msix_idx = 0, irq_req = 0;
703da5a1
RV		 2330 int pci_fun = PCI_FUNC(vdev->pdev->devfn);
2331
2332 if (vdev->config.intr_type == MSI_X)
2333 ret = vxge_enable_msix(vdev);
2334
2335 if (ret) {
2336 vxge_debug_init(VXGE_ERR,
2337 "%s: Enabling MSI-X Failed", VXGE_DRIVER_NAME);
eb5f10c2
SH		 2338 vxge_debug_init(VXGE_ERR,
2339 "%s: Defaulting to INTA", VXGE_DRIVER_NAME);
2340 vdev->config.intr_type = INTA;
703da5a1
RV		 2341 }
2342
2343 if (vdev->config.intr_type == MSI_X) {
2344 for (intr_idx = 0;
2345 intr_idx < (vdev->no_of_vpath *
2346 VXGE_HW_VPATH_MSIX_ACTIVE); intr_idx++) {
2347
2348 msix_idx = intr_idx % VXGE_HW_VPATH_MSIX_ACTIVE;
2349 irq_req = 0;
2350
2351 switch (msix_idx) {
2352 case 0:
2353 snprintf(vdev->desc[intr_cnt], VXGE_INTR_STRLEN,
b59c9457
SH		 2354 "%s:vxge:MSI-X %d - Tx - fn:%d vpath:%d",
2355 vdev->ndev->name,
2356 vdev->entries[intr_cnt].entry,
2357 pci_fun, vp_idx);
703da5a1
RV		 2358 ret = request_irq(
2359 vdev->entries[intr_cnt].vector,
2360 vxge_tx_msix_handle, 0,
2361 vdev->desc[intr_cnt],
2362 &vdev->vpaths[vp_idx].fifo);
2363 vdev->vxge_entries[intr_cnt].arg =
2364 &vdev->vpaths[vp_idx].fifo;
2365 irq_req = 1;
2366 break;
2367 case 1:
2368 snprintf(vdev->desc[intr_cnt], VXGE_INTR_STRLEN,
b59c9457
SH		 2369 "%s:vxge:MSI-X %d - Rx - fn:%d vpath:%d",
2370 vdev->ndev->name,
2371 vdev->entries[intr_cnt].entry,
2372 pci_fun, vp_idx);
703da5a1
RV		 2373 ret = request_irq(
2374 vdev->entries[intr_cnt].vector,
2375 vxge_rx_msix_napi_handle,
2376 0,
2377 vdev->desc[intr_cnt],
2378 &vdev->vpaths[vp_idx].ring);
2379 vdev->vxge_entries[intr_cnt].arg =
2380 &vdev->vpaths[vp_idx].ring;
2381 irq_req = 1;
2382 break;
2383 }
2384
2385 if (ret) {
2386 vxge_debug_init(VXGE_ERR,
2387 "%s: MSIX - %d Registration failed",
2388 vdev->ndev->name, intr_cnt);
2389 vxge_rem_msix_isr(vdev);
eb5f10c2
SH		 2390 vdev->config.intr_type = INTA;
2391 vxge_debug_init(VXGE_ERR,
2392 "%s: Defaulting to INTA"
2393 , vdev->ndev->name);
703da5a1 2394 goto INTA_MODE;
703da5a1
RV		 2395 }
2396
2397 if (irq_req) {
2398 /* We requested for this msix interrupt */
2399 vdev->vxge_entries[intr_cnt].in_use = 1;
b59c9457
SH		 2400 msix_idx += vdev->vpaths[vp_idx].device_id *
2401 VXGE_HW_VPATH_MSIX_ACTIVE;
703da5a1
RV		 2402 vxge_hw_vpath_msix_unmask(
2403 vdev->vpaths[vp_idx].handle,
b59c9457 2404 msix_idx);
703da5a1
RV		 2405 intr_cnt++;
2406 }
2407
2408 /* Point to next vpath handler */
8e95a202
JP		 2409 if (((intr_idx + 1) % VXGE_HW_VPATH_MSIX_ACTIVE == 0) &&
2410 (vp_idx < (vdev->no_of_vpath - 1)))
2411 vp_idx++;
703da5a1
RV		 2412 }
2413
b59c9457 2414 intr_cnt = vdev->no_of_vpath * 2;
703da5a1 2415 snprintf(vdev->desc[intr_cnt], VXGE_INTR_STRLEN,
b59c9457
SH		 2416 "%s:vxge:MSI-X %d - Alarm - fn:%d",
2417 vdev->ndev->name,
2418 vdev->entries[intr_cnt].entry,
2419 pci_fun);
703da5a1
RV		 2420 /* For Alarm interrupts */
2421 ret = request_irq(vdev->entries[intr_cnt].vector,
2422 vxge_alarm_msix_handle, 0,
2423 vdev->desc[intr_cnt],
b59c9457 2424 &vdev->vpaths[0]);
703da5a1
RV		 2425 if (ret) {
2426 vxge_debug_init(VXGE_ERR,
2427 "%s: MSIX - %d Registration failed",
2428 vdev->ndev->name, intr_cnt);
2429 vxge_rem_msix_isr(vdev);
eb5f10c2
SH		 2430 vdev->config.intr_type = INTA;
2431 vxge_debug_init(VXGE_ERR,
2432 "%s: Defaulting to INTA",
2433 vdev->ndev->name);
703da5a1 2434 goto INTA_MODE;
703da5a1
RV		 2435 }
2436
b59c9457
SH		 2437 msix_idx = (vdev->vpaths[0].handle->vpath->vp_id *
2438 VXGE_HW_VPATH_MSIX_ACTIVE) + VXGE_ALARM_MSIX_ID;
703da5a1 2439 vxge_hw_vpath_msix_unmask(vdev->vpaths[vp_idx].handle,
b59c9457 2440 msix_idx);
703da5a1 2441 vdev->vxge_entries[intr_cnt].in_use = 1;
b59c9457 2442 vdev->vxge_entries[intr_cnt].arg = &vdev->vpaths[0];
703da5a1
RV		 2443 }
2444INTA_MODE:
2445#endif
703da5a1
RV		 2446
2447 if (vdev->config.intr_type == INTA) {
b59c9457
SH		 2448 snprintf(vdev->desc[0], VXGE_INTR_STRLEN,
2449 "%s:vxge:INTA", vdev->ndev->name);
eb5f10c2
SH		 2450 vxge_hw_device_set_intr_type(vdev->devh,
2451 VXGE_HW_INTR_MODE_IRQLINE);
2452 vxge_hw_vpath_tti_ci_set(vdev->devh,
2453 vdev->vpaths[0].device_id);
703da5a1
RV		 2454 ret = request_irq((int) vdev->pdev->irq,
2455 vxge_isr_napi,
a5d165b5 2456 IRQF_SHARED, vdev->desc[0], vdev);
703da5a1
RV		 2457 if (ret) {
2458 vxge_debug_init(VXGE_ERR,
2459 "%s %s-%d: ISR registration failed",
2460 VXGE_DRIVER_NAME, "IRQ", vdev->pdev->irq);
2461 return -ENODEV;
2462 }
2463 vxge_debug_init(VXGE_TRACE,
2464 "new %s-%d line allocated",
2465 "IRQ", vdev->pdev->irq);
2466 }
2467
2468 return VXGE_HW_OK;
2469}
2470
2471static void vxge_poll_vp_reset(unsigned long data)
2472{
2473 struct vxgedev *vdev = (struct vxgedev *)data;
2474 int i, j = 0;
2475
2476 for (i = 0; i < vdev->no_of_vpath; i++) {
2477 if (test_bit(i, &vdev->vp_reset)) {
2478 vxge_reset_vpath(vdev, i);
2479 j++;
2480 }
2481 }
2482 if (j && (vdev->config.intr_type != MSI_X)) {
2483 vxge_hw_device_unmask_all(vdev->devh);
2484 vxge_hw_device_flush_io(vdev->devh);
2485 }
2486
2487 mod_timer(&vdev->vp_reset_timer, jiffies + HZ / 2);
2488}
2489
2490static void vxge_poll_vp_lockup(unsigned long data)
2491{
2492 struct vxgedev *vdev = (struct vxgedev *)data;
703da5a1 2493 enum vxge_hw_status status = VXGE_HW_OK;
7adf7d1b
JM		 2494 struct vxge_vpath *vpath;
2495 struct vxge_ring *ring;
2496 int i;
703da5a1
RV		 2497
2498 for (i = 0; i < vdev->no_of_vpath; i++) {
2499 ring = &vdev->vpaths[i].ring;
2500 /* Did this vpath received any packets */
2501 if (ring->stats.prev_rx_frms == ring->stats.rx_frms) {
2502 status = vxge_hw_vpath_check_leak(ring->handle);
2503
2504 /* Did it received any packets last time */
2505 if ((VXGE_HW_FAIL == status) &&
2506 (VXGE_HW_FAIL == ring->last_status)) {
2507
2508 /* schedule vpath reset */
2509 if (!test_and_set_bit(i, &vdev->vp_reset)) {
7adf7d1b 2510 vpath = &vdev->vpaths[i];
703da5a1
RV		 2511
2512 /* disable interrupts for this vpath */
2513 vxge_vpath_intr_disable(vdev, i);
2514
2515 /* stop the queue for this vpath */
98f45da2 2516 netif_tx_stop_queue(vpath->fifo.txq);
703da5a1
RV		 2517 continue;
2518 }
2519 }
2520 }
2521 ring->stats.prev_rx_frms = ring->stats.rx_frms;
2522 ring->last_status = status;
2523 }
2524
2525 /* Check every 1 milli second */
2526 mod_timer(&vdev->vp_lockup_timer, jiffies + HZ / 1000);
2527}
2528
2529/**
2530 * vxge_open
2531 * @dev: pointer to the device structure.
2532 *
2533 * This function is the open entry point of the driver. It mainly calls a
2534 * function to allocate Rx buffers and inserts them into the buffer
2535 * descriptors and then enables the Rx part of the NIC.
2536 * Return value: '0' on success and an appropriate (-)ve integer as
2537 * defined in errno.h file on failure.
2538 */
42821a5b 2539static int
703da5a1
RV		 2540vxge_open(struct net_device *dev)
2541{
2542 enum vxge_hw_status status;
2543 struct vxgedev *vdev;
2544 struct __vxge_hw_device *hldev;
7adf7d1b 2545 struct vxge_vpath *vpath;
703da5a1
RV		 2546 int ret = 0;
2547 int i;
2548 u64 val64, function_mode;
2549 vxge_debug_entryexit(VXGE_TRACE,
2550 "%s: %s:%d", dev->name, __func__, __LINE__);
2551
2552 vdev = (struct vxgedev *)netdev_priv(dev);
2553 hldev = (struct __vxge_hw_device *) pci_get_drvdata(vdev->pdev);
2554 function_mode = vdev->config.device_hw_info.function_mode;
2555
2556 /* make sure you have link off by default every time Nic is
2557 * initialized */
2558 netif_carrier_off(dev);
2559
703da5a1
RV		 2560 /* Open VPATHs */
2561 status = vxge_open_vpaths(vdev);
2562 if (status != VXGE_HW_OK) {
2563 vxge_debug_init(VXGE_ERR,
2564 "%s: fatal: Vpath open failed", vdev->ndev->name);
2565 ret = -EPERM;
2566 goto out0;
2567 }
2568
2569 vdev->mtu = dev->mtu;
2570
2571 status = vxge_add_isr(vdev);
2572 if (status != VXGE_HW_OK) {
2573 vxge_debug_init(VXGE_ERR,
2574 "%s: fatal: ISR add failed", dev->name);
2575 ret = -EPERM;
2576 goto out1;
2577 }
2578
703da5a1
RV		 2579 if (vdev->config.intr_type != MSI_X) {
2580 netif_napi_add(dev, &vdev->napi, vxge_poll_inta,
2581 vdev->config.napi_weight);
2582 napi_enable(&vdev->napi);
7adf7d1b
JM		 2583 for (i = 0; i < vdev->no_of_vpath; i++) {
2584 vpath = &vdev->vpaths[i];
2585 vpath->ring.napi_p = &vdev->napi;
2586 }
703da5a1
RV		 2587 } else {
2588 for (i = 0; i < vdev->no_of_vpath; i++) {
7adf7d1b
JM		 2589 vpath = &vdev->vpaths[i];
2590 netif_napi_add(dev, &vpath->ring.napi,
703da5a1 2591 vxge_poll_msix, vdev->config.napi_weight);
7adf7d1b
JM		 2592 napi_enable(&vpath->ring.napi);
2593 vpath->ring.napi_p = &vpath->ring.napi;
703da5a1
RV		 2594 }
2595 }
2596
2597 /* configure RTH */
2598 if (vdev->config.rth_steering) {
2599 status = vxge_rth_configure(vdev);
2600 if (status != VXGE_HW_OK) {
2601 vxge_debug_init(VXGE_ERR,
2602 "%s: fatal: RTH configuration failed",
2603 dev->name);
2604 ret = -EPERM;
2605 goto out2;
2606 }
2607 }
47f01db4
JM		 2608 printk(KERN_INFO "%s: Receive Hashing Offload %s\n", dev->name,
2609 hldev->config.rth_en ? "enabled" : "disabled");
703da5a1
RV		 2610
2611 for (i = 0; i < vdev->no_of_vpath; i++) {
7adf7d1b
JM		 2612 vpath = &vdev->vpaths[i];
2613
703da5a1 2614 /* set initial mtu before enabling the device */
7adf7d1b 2615 status = vxge_hw_vpath_mtu_set(vpath->handle, vdev->mtu);
703da5a1
RV		 2616 if (status != VXGE_HW_OK) {
2617 vxge_debug_init(VXGE_ERR,
2618 "%s: fatal: can not set new MTU", dev->name);
2619 ret = -EPERM;
2620 goto out2;
2621 }
2622 }
2623
2624 VXGE_DEVICE_DEBUG_LEVEL_SET(VXGE_TRACE, VXGE_COMPONENT_LL, vdev);
2625 vxge_debug_init(vdev->level_trace,
2626 "%s: MTU is %d", vdev->ndev->name, vdev->mtu);
2627 VXGE_DEVICE_DEBUG_LEVEL_SET(VXGE_ERR, VXGE_COMPONENT_LL, vdev);
2628
7adf7d1b
JM		 2629 /* Restore the DA, VID table and also multicast and promiscuous mode
2630 * states
2631 */
2632 if (vdev->all_multi_flg) {
2633 for (i = 0; i < vdev->no_of_vpath; i++) {
2634 vpath = &vdev->vpaths[i];
2635 vxge_restore_vpath_mac_addr(vpath);
2636 vxge_restore_vpath_vid_table(vpath);
2637
2638 status = vxge_hw_vpath_mcast_enable(vpath->handle);
2639 if (status != VXGE_HW_OK)
2640 vxge_debug_init(VXGE_ERR,
2641 "%s:%d Enabling multicast failed",
2642 __func__, __LINE__);
2643 }
703da5a1
RV		 2644 }
2645
2646 /* Enable vpath to sniff all unicast/multicast traffic that not
2647 * addressed to them. We allow promiscous mode for PF only
2648 */
2649
2650 val64 = 0;
2651 for (i = 0; i < VXGE_HW_MAX_VIRTUAL_PATHS; i++)
2652 val64 |= VXGE_HW_RXMAC_AUTHORIZE_ALL_ADDR_VP(i);
2653
2654 vxge_hw_mgmt_reg_write(vdev->devh,
2655 vxge_hw_mgmt_reg_type_mrpcim,
2656 0,
2657 (ulong)offsetof(struct vxge_hw_mrpcim_reg,
2658 rxmac_authorize_all_addr),
2659 val64);
2660
2661 vxge_hw_mgmt_reg_write(vdev->devh,
2662 vxge_hw_mgmt_reg_type_mrpcim,
2663 0,
2664 (ulong)offsetof(struct vxge_hw_mrpcim_reg,
2665 rxmac_authorize_all_vid),
2666 val64);
2667
2668 vxge_set_multicast(dev);
2669
2670 /* Enabling Bcast and mcast for all vpath */
2671 for (i = 0; i < vdev->no_of_vpath; i++) {
7adf7d1b
JM		 2672 vpath = &vdev->vpaths[i];
2673 status = vxge_hw_vpath_bcast_enable(vpath->handle);
703da5a1
RV		 2674 if (status != VXGE_HW_OK)
2675 vxge_debug_init(VXGE_ERR,
2676 "%s : Can not enable bcast for vpath "
2677 "id %d", dev->name, i);
2678 if (vdev->config.addr_learn_en) {
7adf7d1b 2679 status = vxge_hw_vpath_mcast_enable(vpath->handle);
703da5a1
RV		 2680 if (status != VXGE_HW_OK)
2681 vxge_debug_init(VXGE_ERR,
2682 "%s : Can not enable mcast for vpath "
2683 "id %d", dev->name, i);
2684 }
2685 }
2686
2687 vxge_hw_device_setpause_data(vdev->devh, 0,
2688 vdev->config.tx_pause_enable,
2689 vdev->config.rx_pause_enable);
2690
2691 if (vdev->vp_reset_timer.function == NULL)
2692 vxge_os_timer(vdev->vp_reset_timer,
2693 vxge_poll_vp_reset, vdev, (HZ/2));
2694
2695 if (vdev->vp_lockup_timer.function == NULL)
2696 vxge_os_timer(vdev->vp_lockup_timer,
2697 vxge_poll_vp_lockup, vdev, (HZ/2));
2698
2699 set_bit(__VXGE_STATE_CARD_UP, &vdev->state);
2700
2701 smp_wmb();
2702
2703 if (vxge_hw_device_link_state_get(vdev->devh) == VXGE_HW_LINK_UP) {
2704 netif_carrier_on(vdev->ndev);
75f5e1c6 2705 netdev_notice(vdev->ndev, "Link Up\n");
703da5a1
RV		 2706 vdev->stats.link_up++;
2707 }
2708
2709 vxge_hw_device_intr_enable(vdev->devh);
2710
2711 smp_wmb();
2712
2713 for (i = 0; i < vdev->no_of_vpath; i++) {
7adf7d1b
JM		 2714 vpath = &vdev->vpaths[i];
2715
2716 vxge_hw_vpath_enable(vpath->handle);
703da5a1 2717 smp_wmb();
7adf7d1b 2718 vxge_hw_vpath_rx_doorbell_init(vpath->handle);
703da5a1
RV		 2719 }
2720
d03848e0 2721 netif_tx_start_all_queues(vdev->ndev);
703da5a1
RV		 2722 goto out0;
2723
2724out2:
2725 vxge_rem_isr(vdev);
2726
2727 /* Disable napi */
2728 if (vdev->config.intr_type != MSI_X)
2729 napi_disable(&vdev->napi);
2730 else {
2731 for (i = 0; i < vdev->no_of_vpath; i++)
2732 napi_disable(&vdev->vpaths[i].ring.napi);
2733 }
2734
2735out1:
2736 vxge_close_vpaths(vdev, 0);
2737out0:
2738 vxge_debug_entryexit(VXGE_TRACE,
2739 "%s: %s:%d Exiting...",
2740 dev->name, __func__, __LINE__);
2741 return ret;
2742}
2743
2744/* Loop throught the mac address list and delete all the entries */
42821a5b 2745static void vxge_free_mac_add_list(struct vxge_vpath *vpath)
703da5a1
RV		 2746{
2747
2748 struct list_head *entry, *next;
2749 if (list_empty(&vpath->mac_addr_list))
2750 return;
2751
2752 list_for_each_safe(entry, next, &vpath->mac_addr_list) {
2753 list_del(entry);
2754 kfree((struct vxge_mac_addrs *)entry);
2755 }
2756}
2757
2758static void vxge_napi_del_all(struct vxgedev *vdev)
2759{
2760 int i;
2761 if (vdev->config.intr_type != MSI_X)
2762 netif_napi_del(&vdev->napi);
2763 else {
2764 for (i = 0; i < vdev->no_of_vpath; i++)
2765 netif_napi_del(&vdev->vpaths[i].ring.napi);
2766 }
703da5a1
RV		 2767}
2768
42821a5b 2769static int do_vxge_close(struct net_device *dev, int do_io)
703da5a1
RV		 2770{
2771 enum vxge_hw_status status;
2772 struct vxgedev *vdev;
2773 struct __vxge_hw_device *hldev;
2774 int i;
2775 u64 val64, vpath_vector;
2776 vxge_debug_entryexit(VXGE_TRACE, "%s: %s:%d",
2777 dev->name, __func__, __LINE__);
2778
2779 vdev = (struct vxgedev *)netdev_priv(dev);
2780 hldev = (struct __vxge_hw_device *) pci_get_drvdata(vdev->pdev);
2781
bd9ee680
SH		 2782 if (unlikely(!is_vxge_card_up(vdev)))
2783 return 0;
2784
703da5a1
RV		 2785 /* If vxge_handle_crit_err task is executing,
2786 * wait till it completes. */
2787 while (test_and_set_bit(__VXGE_STATE_RESET_CARD, &vdev->state))
2788 msleep(50);
2789
2790 clear_bit(__VXGE_STATE_CARD_UP, &vdev->state);
2791 if (do_io) {
2792 /* Put the vpath back in normal mode */
2793 vpath_vector = vxge_mBIT(vdev->vpaths[0].device_id);
2794 status = vxge_hw_mgmt_reg_read(vdev->devh,
2795 vxge_hw_mgmt_reg_type_mrpcim,
2796 0,
2797 (ulong)offsetof(
2798 struct vxge_hw_mrpcim_reg,
2799 rts_mgr_cbasin_cfg),
2800 &val64);
2801
2802 if (status == VXGE_HW_OK) {
2803 val64 &= ~vpath_vector;
2804 status = vxge_hw_mgmt_reg_write(vdev->devh,
2805 vxge_hw_mgmt_reg_type_mrpcim,
2806 0,
2807 (ulong)offsetof(
2808 struct vxge_hw_mrpcim_reg,
2809 rts_mgr_cbasin_cfg),
2810 val64);
2811 }
2812
2813 /* Remove the function 0 from promiscous mode */
2814 vxge_hw_mgmt_reg_write(vdev->devh,
2815 vxge_hw_mgmt_reg_type_mrpcim,
2816 0,
2817 (ulong)offsetof(struct vxge_hw_mrpcim_reg,
2818 rxmac_authorize_all_addr),
2819 0);
2820
2821 vxge_hw_mgmt_reg_write(vdev->devh,
2822 vxge_hw_mgmt_reg_type_mrpcim,
2823 0,
2824 (ulong)offsetof(struct vxge_hw_mrpcim_reg,
2825 rxmac_authorize_all_vid),
2826 0);
2827
2828 smp_wmb();
2829 }
2830 del_timer_sync(&vdev->vp_lockup_timer);
2831
2832 del_timer_sync(&vdev->vp_reset_timer);
2833
2834 /* Disable napi */
2835 if (vdev->config.intr_type != MSI_X)
2836 napi_disable(&vdev->napi);
2837 else {
2838 for (i = 0; i < vdev->no_of_vpath; i++)
2839 napi_disable(&vdev->vpaths[i].ring.napi);
2840 }
2841
2842 netif_carrier_off(vdev->ndev);
75f5e1c6 2843 netdev_notice(vdev->ndev, "Link Down\n");
d03848e0 2844 netif_tx_stop_all_queues(vdev->ndev);
703da5a1
RV		 2845
2846 /* Note that at this point xmit() is stopped by upper layer */
2847 if (do_io)
2848 vxge_hw_device_intr_disable(vdev->devh);
2849
2850 mdelay(1000);
2851
2852 vxge_rem_isr(vdev);
2853
2854 vxge_napi_del_all(vdev);
2855
2856 if (do_io)
2857 vxge_reset_all_vpaths(vdev);
2858
2859 vxge_close_vpaths(vdev, 0);
2860
2861 vxge_debug_entryexit(VXGE_TRACE,
2862 "%s: %s:%d Exiting...", dev->name, __func__, __LINE__);
2863
703da5a1
RV		 2864 clear_bit(__VXGE_STATE_RESET_CARD, &vdev->state);
2865
2866 return 0;
2867}
2868
2869/**
2870 * vxge_close
2871 * @dev: device pointer.
2872 *
2873 * This is the stop entry point of the driver. It needs to undo exactly
2874 * whatever was done by the open entry point, thus it's usually referred to
2875 * as the close function.Among other things this function mainly stops the
2876 * Rx side of the NIC and frees all the Rx buffers in the Rx rings.
2877 * Return value: '0' on success and an appropriate (-)ve integer as
2878 * defined in errno.h file on failure.
2879 */
42821a5b 2880static int
703da5a1
RV		 2881vxge_close(struct net_device *dev)
2882{
2883 do_vxge_close(dev, 1);
2884 return 0;
2885}
2886
2887/**
2888 * vxge_change_mtu
2889 * @dev: net device pointer.
2890 * @new_mtu :the new MTU size for the device.
2891 *
2892 * A driver entry point to change MTU size for the device. Before changing
2893 * the MTU the device must be stopped.
2894 */
2895static int vxge_change_mtu(struct net_device *dev, int new_mtu)
2896{
2897 struct vxgedev *vdev = netdev_priv(dev);
2898
2899 vxge_debug_entryexit(vdev->level_trace,
2900 "%s:%d", __func__, __LINE__);
2901 if ((new_mtu < VXGE_HW_MIN_MTU) || (new_mtu > VXGE_HW_MAX_MTU)) {
2902 vxge_debug_init(vdev->level_err,
2903 "%s: mtu size is invalid", dev->name);
2904 return -EPERM;
2905 }
2906
2907 /* check if device is down already */
2908 if (unlikely(!is_vxge_card_up(vdev))) {
2909 /* just store new value, will use later on open() */
2910 dev->mtu = new_mtu;
2911 vxge_debug_init(vdev->level_err,
2912 "%s", "device is down on MTU change");
2913 return 0;
2914 }
2915
2916 vxge_debug_init(vdev->level_trace,
2917 "trying to apply new MTU %d", new_mtu);
2918
2919 if (vxge_close(dev))
2920 return -EIO;
2921
2922 dev->mtu = new_mtu;
2923 vdev->mtu = new_mtu;
2924
2925 if (vxge_open(dev))
2926 return -EIO;
2927
2928 vxge_debug_init(vdev->level_trace,
2929 "%s: MTU changed to %d", vdev->ndev->name, new_mtu);
2930
2931 vxge_debug_entryexit(vdev->level_trace,
2932 "%s:%d Exiting...", __func__, __LINE__);
2933
2934 return 0;
2935}
2936
2937/**
dd57f970 2938 * vxge_get_stats64
703da5a1 2939 * @dev: pointer to the device structure
dd57f970 2940 * @stats: pointer to struct rtnl_link_stats64
703da5a1 2941 *
703da5a1 2942 */
dd57f970
ED		 2943static struct rtnl_link_stats64 *
2944vxge_get_stats64(struct net_device *dev, struct rtnl_link_stats64 *net_stats)
703da5a1 2945{
dd57f970 2946 struct vxgedev *vdev = netdev_priv(dev);
703da5a1
RV		 2947 int k;
2948
dd57f970 2949 /* net_stats already zeroed by caller */
703da5a1
RV		 2950 for (k = 0; k < vdev->no_of_vpath; k++) {
2951 net_stats->rx_packets += vdev->vpaths[k].ring.stats.rx_frms;
2952 net_stats->rx_bytes += vdev->vpaths[k].ring.stats.rx_bytes;
2953 net_stats->rx_errors += vdev->vpaths[k].ring.stats.rx_errors;
2954 net_stats->multicast += vdev->vpaths[k].ring.stats.rx_mcast;
2955 net_stats->rx_dropped +=
2956 vdev->vpaths[k].ring.stats.rx_dropped;
2957
2958 net_stats->tx_packets += vdev->vpaths[k].fifo.stats.tx_frms;
2959 net_stats->tx_bytes += vdev->vpaths[k].fifo.stats.tx_bytes;
2960 net_stats->tx_errors += vdev->vpaths[k].fifo.stats.tx_errors;
2961 }
2962
2963 return net_stats;
2964}
2965
2966/**
2967 * vxge_ioctl
2968 * @dev: Device pointer.
2969 * @ifr: An IOCTL specific structure, that can contain a pointer to
2970 * a proprietary structure used to pass information to the driver.
2971 * @cmd: This is used to distinguish between the different commands that
2972 * can be passed to the IOCTL functions.
2973 *
2974 * Entry point for the Ioctl.
2975 */
2976static int vxge_ioctl(struct net_device *dev, struct ifreq *rq, int cmd)
2977{
2978 return -EOPNOTSUPP;
2979}
2980
2981/**
2982 * vxge_tx_watchdog
2983 * @dev: pointer to net device structure
2984 *
2985 * Watchdog for transmit side.
2986 * This function is triggered if the Tx Queue is stopped
2987 * for a pre-defined amount of time when the Interface is still up.
2988 */
2989static void
2990vxge_tx_watchdog(struct net_device *dev)
2991{
2992 struct vxgedev *vdev;
2993
2994 vxge_debug_entryexit(VXGE_TRACE, "%s:%d", __func__, __LINE__);
2995
2996 vdev = (struct vxgedev *)netdev_priv(dev);
2997
2998 vdev->cric_err_event = VXGE_HW_EVENT_RESET_START;
2999
3000 vxge_reset(vdev);
3001 vxge_debug_entryexit(VXGE_TRACE,
3002 "%s:%d Exiting...", __func__, __LINE__);
3003}
3004
3005/**
3006 * vxge_vlan_rx_register
3007 * @dev: net device pointer.
3008 * @grp: vlan group
3009 *
3010 * Vlan group registration
3011 */
3012static void
3013vxge_vlan_rx_register(struct net_device *dev, struct vlan_group *grp)
3014{
3015 struct vxgedev *vdev;
3016 struct vxge_vpath *vpath;
3017 int vp;
3018 u64 vid;
3019 enum vxge_hw_status status;
3020 int i;
3021
3022 vxge_debug_entryexit(VXGE_TRACE, "%s:%d", __func__, __LINE__);
3023
3024 vdev = (struct vxgedev *)netdev_priv(dev);
3025
3026 vpath = &vdev->vpaths[0];
3027 if ((NULL == grp) && (vpath->is_open)) {
3028 /* Get the first vlan */
3029 status = vxge_hw_vpath_vid_get(vpath->handle, &vid);
3030
3031 while (status == VXGE_HW_OK) {
3032
3033 /* Delete this vlan from the vid table */
3034 for (vp = 0; vp < vdev->no_of_vpath; vp++) {
3035 vpath = &vdev->vpaths[vp];
3036 if (!vpath->is_open)
3037 continue;
3038
3039 vxge_hw_vpath_vid_delete(vpath->handle, vid);
3040 }
3041
3042 /* Get the next vlan to be deleted */
3043 vpath = &vdev->vpaths[0];
3044 status = vxge_hw_vpath_vid_get(vpath->handle, &vid);
3045 }
3046 }
3047
3048 vdev->vlgrp = grp;
3049
3050 for (i = 0; i < vdev->no_of_vpath; i++) {
3051 if (vdev->vpaths[i].is_configured)
3052 vdev->vpaths[i].ring.vlgrp = grp;
3053 }
3054
3055 vxge_debug_entryexit(VXGE_TRACE,
3056 "%s:%d Exiting...", __func__, __LINE__);
3057}
3058
3059/**
3060 * vxge_vlan_rx_add_vid
3061 * @dev: net device pointer.
3062 * @vid: vid
3063 *
3064 * Add the vlan id to the devices vlan id table
3065 */
3066static void
3067vxge_vlan_rx_add_vid(struct net_device *dev, unsigned short vid)
3068{
3069 struct vxgedev *vdev;
3070 struct vxge_vpath *vpath;
3071 int vp_id;
3072
3073 vdev = (struct vxgedev *)netdev_priv(dev);
3074
3075 /* Add these vlan to the vid table */
3076 for (vp_id = 0; vp_id < vdev->no_of_vpath; vp_id++) {
3077 vpath = &vdev->vpaths[vp_id];
3078 if (!vpath->is_open)
3079 continue;
3080 vxge_hw_vpath_vid_add(vpath->handle, vid);
3081 }
3082}
3083
3084/**
3085 * vxge_vlan_rx_add_vid
3086 * @dev: net device pointer.
3087 * @vid: vid
3088 *
3089 * Remove the vlan id from the device's vlan id table
3090 */
3091static void
3092vxge_vlan_rx_kill_vid(struct net_device *dev, unsigned short vid)
3093{
3094 struct vxgedev *vdev;
3095 struct vxge_vpath *vpath;
3096 int vp_id;
3097
3098 vxge_debug_entryexit(VXGE_TRACE, "%s:%d", __func__, __LINE__);
3099
3100 vdev = (struct vxgedev *)netdev_priv(dev);
3101
3102 vlan_group_set_device(vdev->vlgrp, vid, NULL);
3103
3104 /* Delete this vlan from the vid table */
3105 for (vp_id = 0; vp_id < vdev->no_of_vpath; vp_id++) {
3106 vpath = &vdev->vpaths[vp_id];
3107 if (!vpath->is_open)
3108 continue;
3109 vxge_hw_vpath_vid_delete(vpath->handle, vid);
3110 }
3111 vxge_debug_entryexit(VXGE_TRACE,
3112 "%s:%d Exiting...", __func__, __LINE__);
3113}
3114
3115static const struct net_device_ops vxge_netdev_ops = {
3116 .ndo_open = vxge_open,
3117 .ndo_stop = vxge_close,
dd57f970 3118 .ndo_get_stats64 = vxge_get_stats64,
703da5a1
RV		 3119 .ndo_start_xmit = vxge_xmit,
3120 .ndo_validate_addr = eth_validate_addr,
3121 .ndo_set_multicast_list = vxge_set_multicast,
3122
3123 .ndo_do_ioctl = vxge_ioctl,
3124
3125 .ndo_set_mac_address = vxge_set_mac_addr,
3126 .ndo_change_mtu = vxge_change_mtu,
3127 .ndo_vlan_rx_register = vxge_vlan_rx_register,
3128 .ndo_vlan_rx_kill_vid = vxge_vlan_rx_kill_vid,
3129 .ndo_vlan_rx_add_vid = vxge_vlan_rx_add_vid,
3130
3131 .ndo_tx_timeout = vxge_tx_watchdog,
3132#ifdef CONFIG_NET_POLL_CONTROLLER
3133 .ndo_poll_controller = vxge_netpoll,
3134#endif
3135};
3136
42821a5b 3137static int __devinit vxge_device_register(struct __vxge_hw_device *hldev,
3138 struct vxge_config *config,
3139 int high_dma, int no_of_vpath,
3140 struct vxgedev **vdev_out)
703da5a1
RV		 3141{
3142 struct net_device *ndev;
3143 enum vxge_hw_status status = VXGE_HW_OK;
3144 struct vxgedev *vdev;
98f45da2 3145 int ret = 0, no_of_queue = 1;
703da5a1
RV		 3146 u64 stat;
3147
3148 *vdev_out = NULL;
d03848e0 3149 if (config->tx_steering_type)
703da5a1
RV		 3150 no_of_queue = no_of_vpath;
3151
3152 ndev = alloc_etherdev_mq(sizeof(struct vxgedev),
3153 no_of_queue);
3154 if (ndev == NULL) {
3155 vxge_debug_init(
3156 vxge_hw_device_trace_level_get(hldev),
3157 "%s : device allocation failed", __func__);
3158 ret = -ENODEV;
3159 goto _out0;
3160 }
3161
3162 vxge_debug_entryexit(
3163 vxge_hw_device_trace_level_get(hldev),
3164 "%s: %s:%d Entering...",
3165 ndev->name, __func__, __LINE__);
3166
3167 vdev = netdev_priv(ndev);
3168 memset(vdev, 0, sizeof(struct vxgedev));
3169
3170 vdev->ndev = ndev;
3171 vdev->devh = hldev;
3172 vdev->pdev = hldev->pdev;
3173 memcpy(&vdev->config, config, sizeof(struct vxge_config));
3174 vdev->rx_csum = 1; /* Enable Rx CSUM by default. */
3175
3176 SET_NETDEV_DEV(ndev, &vdev->pdev->dev);
3177
3178 ndev->features |= NETIF_F_HW_VLAN_TX | NETIF_F_HW_VLAN_RX |
3179 NETIF_F_HW_VLAN_FILTER;
3180 /* Driver entry points */
3181 ndev->irq = vdev->pdev->irq;
3182 ndev->base_addr = (unsigned long) hldev->bar0;
3183
3184 ndev->netdev_ops = &vxge_netdev_ops;
3185
3186 ndev->watchdog_timeo = VXGE_LL_WATCH_DOG_TIMEOUT;
3187
42821a5b 3188 vxge_initialize_ethtool_ops(ndev);
703da5a1 3189
47f01db4
JM		 3190 if (vdev->config.rth_steering != NO_STEERING) {
3191 ndev->features |= NETIF_F_RXHASH;
3192 hldev->config.rth_en = VXGE_HW_RTH_ENABLE;
3193 }
3194
703da5a1
RV		 3195 /* Allocate memory for vpath */
3196 vdev->vpaths = kzalloc((sizeof(struct vxge_vpath)) *
3197 no_of_vpath, GFP_KERNEL);
3198 if (!vdev->vpaths) {
3199 vxge_debug_init(VXGE_ERR,
3200 "%s: vpath memory allocation failed",
3201 vdev->ndev->name);
3202 ret = -ENODEV;
3203 goto _out1;
3204 }
3205
3206 ndev->features |= NETIF_F_SG;
3207
3208 ndev->features |= NETIF_F_HW_CSUM;
3209 vxge_debug_init(vxge_hw_device_trace_level_get(hldev),
3210 "%s : checksuming enabled", __func__);
3211
3212 if (high_dma) {
3213 ndev->features |= NETIF_F_HIGHDMA;
3214 vxge_debug_init(vxge_hw_device_trace_level_get(hldev),
3215 "%s : using High DMA", __func__);
3216 }
3217
3218 ndev->features |= NETIF_F_TSO | NETIF_F_TSO6;
3219
3220 if (vdev->config.gro_enable)
3221 ndev->features |= NETIF_F_GRO;
3222
703da5a1
RV		 3223 if (register_netdev(ndev)) {
3224 vxge_debug_init(vxge_hw_device_trace_level_get(hldev),
3225 "%s: %s : device registration failed!",
3226 ndev->name, __func__);
3227 ret = -ENODEV;
3228 goto _out2;
3229 }
3230
3231 /* Set the factory defined MAC address initially */
3232 ndev->addr_len = ETH_ALEN;
3233
3234 /* Make Link state as off at this point, when the Link change
3235 * interrupt comes the state will be automatically changed to
3236 * the right state.
3237 */
3238 netif_carrier_off(ndev);
3239
3240 vxge_debug_init(vxge_hw_device_trace_level_get(hldev),
3241 "%s: Ethernet device registered",
3242 ndev->name);
3243
3244 *vdev_out = vdev;
3245
3246 /* Resetting the Device stats */
3247 status = vxge_hw_mrpcim_stats_access(
3248 hldev,
3249 VXGE_HW_STATS_OP_CLEAR_ALL_STATS,
3250 0,
3251 0,
3252 &stat);
3253
3254 if (status == VXGE_HW_ERR_PRIVILAGED_OPEARATION)
3255 vxge_debug_init(
3256 vxge_hw_device_trace_level_get(hldev),
3257 "%s: device stats clear returns"
3258 "VXGE_HW_ERR_PRIVILAGED_OPEARATION", ndev->name);
3259
3260 vxge_debug_entryexit(vxge_hw_device_trace_level_get(hldev),
3261 "%s: %s:%d Exiting...",
3262 ndev->name, __func__, __LINE__);
3263
3264 return ret;
3265_out2:
3266 kfree(vdev->vpaths);
3267_out1:
3268 free_netdev(ndev);
3269_out0:
3270 return ret;
3271}
3272
3273/*
3274 * vxge_device_unregister
3275 *
3276 * This function will unregister and free network device
3277 */
42821a5b 3278static void
703da5a1
RV		 3279vxge_device_unregister(struct __vxge_hw_device *hldev)
3280{
3281 struct vxgedev *vdev;
3282 struct net_device *dev;
3283 char buf[IFNAMSIZ];
3284#if ((VXGE_DEBUG_INIT & VXGE_DEBUG_MASK) || \
3285 (VXGE_DEBUG_ENTRYEXIT & VXGE_DEBUG_MASK))
3286 u32 level_trace;
3287#endif
3288
3289 dev = hldev->ndev;
3290 vdev = netdev_priv(dev);
3291#if ((VXGE_DEBUG_INIT & VXGE_DEBUG_MASK) || \
3292 (VXGE_DEBUG_ENTRYEXIT & VXGE_DEBUG_MASK))
3293 level_trace = vdev->level_trace;
3294#endif
3295 vxge_debug_entryexit(level_trace,
3296 "%s: %s:%d", vdev->ndev->name, __func__, __LINE__);
3297
3298 memcpy(buf, vdev->ndev->name, IFNAMSIZ);
3299
3300 /* in 2.6 will call stop() if device is up */
3301 unregister_netdev(dev);
3302
3303 flush_scheduled_work();
3304
3305 vxge_debug_init(level_trace, "%s: ethernet device unregistered", buf);
3306 vxge_debug_entryexit(level_trace,
3307 "%s: %s:%d Exiting...", buf, __func__, __LINE__);
3308}
3309
3310/*
3311 * vxge_callback_crit_err
3312 *
3313 * This function is called by the alarm handler in interrupt context.
3314 * Driver must analyze it based on the event type.
3315 */
3316static void
3317vxge_callback_crit_err(struct __vxge_hw_device *hldev,
3318 enum vxge_hw_event type, u64 vp_id)
3319{
3320 struct net_device *dev = hldev->ndev;
3321 struct vxgedev *vdev = (struct vxgedev *)netdev_priv(dev);
98f45da2 3322 struct vxge_vpath *vpath = NULL;
703da5a1
RV		 3323 int vpath_idx;
3324
3325 vxge_debug_entryexit(vdev->level_trace,
3326 "%s: %s:%d", vdev->ndev->name, __func__, __LINE__);
3327
3328 /* Note: This event type should be used for device wide
3329 * indications only - Serious errors, Slot freeze and critical errors
3330 */
3331 vdev->cric_err_event = type;
3332
98f45da2
JM		 3333 for (vpath_idx = 0; vpath_idx < vdev->no_of_vpath; vpath_idx++) {
3334 vpath = &vdev->vpaths[vpath_idx];
3335 if (vpath->device_id == vp_id)
703da5a1 3336 break;
98f45da2 3337 }
703da5a1
RV		 3338
3339 if (!test_bit(__VXGE_STATE_RESET_CARD, &vdev->state)) {
3340 if (type == VXGE_HW_EVENT_SLOT_FREEZE) {
3341 vxge_debug_init(VXGE_ERR,
3342 "%s: Slot is frozen", vdev->ndev->name);
3343 } else if (type == VXGE_HW_EVENT_SERR) {
3344 vxge_debug_init(VXGE_ERR,
3345 "%s: Encountered Serious Error",
3346 vdev->ndev->name);
3347 } else if (type == VXGE_HW_EVENT_CRITICAL_ERR)
3348 vxge_debug_init(VXGE_ERR,
3349 "%s: Encountered Critical Error",
3350 vdev->ndev->name);
3351 }
3352
3353 if ((type == VXGE_HW_EVENT_SERR) ||
3354 (type == VXGE_HW_EVENT_SLOT_FREEZE)) {
3355 if (unlikely(vdev->exec_mode))
3356 clear_bit(__VXGE_STATE_CARD_UP, &vdev->state);
3357 } else if (type == VXGE_HW_EVENT_CRITICAL_ERR) {
3358 vxge_hw_device_mask_all(hldev);
3359 if (unlikely(vdev->exec_mode))
3360 clear_bit(__VXGE_STATE_CARD_UP, &vdev->state);
3361 } else if ((type == VXGE_HW_EVENT_FIFO_ERR) ||
3362 (type == VXGE_HW_EVENT_VPATH_ERR)) {
3363
3364 if (unlikely(vdev->exec_mode))
3365 clear_bit(__VXGE_STATE_CARD_UP, &vdev->state);
3366 else {
3367 /* check if this vpath is already set for reset */
3368 if (!test_and_set_bit(vpath_idx, &vdev->vp_reset)) {
3369
3370 /* disable interrupts for this vpath */
3371 vxge_vpath_intr_disable(vdev, vpath_idx);
3372
3373 /* stop the queue for this vpath */
98f45da2 3374 netif_tx_stop_queue(vpath->fifo.txq);
703da5a1
RV		 3375 }
3376 }
3377 }
3378
3379 vxge_debug_entryexit(vdev->level_trace,
3380 "%s: %s:%d Exiting...",
3381 vdev->ndev->name, __func__, __LINE__);
3382}
3383
3384static void verify_bandwidth(void)
3385{
3386 int i, band_width, total = 0, equal_priority = 0;
3387
3388 /* 1. If user enters 0 for some fifo, give equal priority to all */
3389 for (i = 0; i < VXGE_HW_MAX_VIRTUAL_PATHS; i++) {
3390 if (bw_percentage[i] == 0) {
3391 equal_priority = 1;
3392 break;
3393 }
3394 }
3395
3396 if (!equal_priority) {
3397 /* 2. If sum exceeds 100, give equal priority to all */
3398 for (i = 0; i < VXGE_HW_MAX_VIRTUAL_PATHS; i++) {
3399 if (bw_percentage[i] == 0xFF)
3400 break;
3401
3402 total += bw_percentage[i];
3403 if (total > VXGE_HW_VPATH_BANDWIDTH_MAX) {
3404 equal_priority = 1;
3405 break;
3406 }
3407 }
3408 }
3409
3410 if (!equal_priority) {
3411 /* Is all the bandwidth consumed? */
3412 if (total < VXGE_HW_VPATH_BANDWIDTH_MAX) {
3413 if (i < VXGE_HW_MAX_VIRTUAL_PATHS) {
3414 /* Split rest of bw equally among next VPs*/
3415 band_width =
3416 (VXGE_HW_VPATH_BANDWIDTH_MAX - total) /
3417 (VXGE_HW_MAX_VIRTUAL_PATHS - i);
3418 if (band_width < 2) /* min of 2% */
3419 equal_priority = 1;
3420 else {
3421 for (; i < VXGE_HW_MAX_VIRTUAL_PATHS;
3422 i++)
3423 bw_percentage[i] =
3424 band_width;
3425 }
3426 }
3427 } else if (i < VXGE_HW_MAX_VIRTUAL_PATHS)
3428 equal_priority = 1;
3429 }
3430
3431 if (equal_priority) {
3432 vxge_debug_init(VXGE_ERR,
3433 "%s: Assigning equal bandwidth to all the vpaths",
3434 VXGE_DRIVER_NAME);
3435 bw_percentage[0] = VXGE_HW_VPATH_BANDWIDTH_MAX /
3436 VXGE_HW_MAX_VIRTUAL_PATHS;
3437 for (i = 1; i < VXGE_HW_MAX_VIRTUAL_PATHS; i++)
3438 bw_percentage[i] = bw_percentage[0];
3439 }
703da5a1
RV		 3440}
3441
3442/*
3443 * Vpath configuration
3444 */
3445static int __devinit vxge_config_vpaths(
3446 struct vxge_hw_device_config *device_config,
3447 u64 vpath_mask, struct vxge_config *config_param)
3448{
3449 int i, no_of_vpaths = 0, default_no_vpath = 0, temp;
3450 u32 txdl_size, txdl_per_memblock;
3451
3452 temp = driver_config->vpath_per_dev;
3453 if ((driver_config->vpath_per_dev == VXGE_USE_DEFAULT) &&
3454 (max_config_dev == VXGE_MAX_CONFIG_DEV)) {
3455 /* No more CPU. Return vpath number as zero.*/
3456 if (driver_config->g_no_cpus == -1)
3457 return 0;
3458
3459 if (!driver_config->g_no_cpus)
3460 driver_config->g_no_cpus = num_online_cpus();
3461
3462 driver_config->vpath_per_dev = driver_config->g_no_cpus >> 1;
3463 if (!driver_config->vpath_per_dev)
3464 driver_config->vpath_per_dev = 1;
3465
3466 for (i = 0; i < VXGE_HW_MAX_VIRTUAL_PATHS; i++)
3467 if (!vxge_bVALn(vpath_mask, i, 1))
3468 continue;
3469 else
3470 default_no_vpath++;
3471 if (default_no_vpath < driver_config->vpath_per_dev)
3472 driver_config->vpath_per_dev = default_no_vpath;
3473
3474 driver_config->g_no_cpus = driver_config->g_no_cpus -
3475 (driver_config->vpath_per_dev * 2);
3476 if (driver_config->g_no_cpus <= 0)
3477 driver_config->g_no_cpus = -1;
3478 }
3479
3480 if (driver_config->vpath_per_dev == 1) {
3481 vxge_debug_ll_config(VXGE_TRACE,
3482 "%s: Disable tx and rx steering, "
3483 "as single vpath is configured", VXGE_DRIVER_NAME);
3484 config_param->rth_steering = NO_STEERING;
3485 config_param->tx_steering_type = NO_STEERING;
3486 device_config->rth_en = 0;
3487 }
3488
3489 /* configure bandwidth */
3490 for (i = 0; i < VXGE_HW_MAX_VIRTUAL_PATHS; i++)
3491 device_config->vp_config[i].min_bandwidth = bw_percentage[i];
3492
3493 for (i = 0; i < VXGE_HW_MAX_VIRTUAL_PATHS; i++) {
3494 device_config->vp_config[i].vp_id = i;
3495 device_config->vp_config[i].mtu = VXGE_HW_DEFAULT_MTU;
3496 if (no_of_vpaths < driver_config->vpath_per_dev) {
3497 if (!vxge_bVALn(vpath_mask, i, 1)) {
3498 vxge_debug_ll_config(VXGE_TRACE,
3499 "%s: vpath: %d is not available",
3500 VXGE_DRIVER_NAME, i);
3501 continue;
3502 } else {
3503 vxge_debug_ll_config(VXGE_TRACE,
3504 "%s: vpath: %d available",
3505 VXGE_DRIVER_NAME, i);
3506 no_of_vpaths++;
3507 }
3508 } else {
3509 vxge_debug_ll_config(VXGE_TRACE,
3510 "%s: vpath: %d is not configured, "
3511 "max_config_vpath exceeded",
3512 VXGE_DRIVER_NAME, i);
3513 break;
3514 }
3515
3516 /* Configure Tx fifo's */
3517 device_config->vp_config[i].fifo.enable =
3518 VXGE_HW_FIFO_ENABLE;
3519 device_config->vp_config[i].fifo.max_frags =
5beefb4f 3520 MAX_SKB_FRAGS + 1;
703da5a1
RV		 3521 device_config->vp_config[i].fifo.memblock_size =
3522 VXGE_HW_MIN_FIFO_MEMBLOCK_SIZE;
3523
5beefb4f
SH		 3524 txdl_size = device_config->vp_config[i].fifo.max_frags *
3525 sizeof(struct vxge_hw_fifo_txd);
703da5a1
RV		 3526 txdl_per_memblock = VXGE_HW_MIN_FIFO_MEMBLOCK_SIZE / txdl_size;
3527
3528 device_config->vp_config[i].fifo.fifo_blocks =
3529 ((VXGE_DEF_FIFO_LENGTH - 1) / txdl_per_memblock) + 1;
3530
3531 device_config->vp_config[i].fifo.intr =
3532 VXGE_HW_FIFO_QUEUE_INTR_DISABLE;
3533
3534 /* Configure tti properties */
3535 device_config->vp_config[i].tti.intr_enable =
3536 VXGE_HW_TIM_INTR_ENABLE;
3537
3538 device_config->vp_config[i].tti.btimer_val =
3539 (VXGE_TTI_BTIMER_VAL * 1000) / 272;
3540
3541 device_config->vp_config[i].tti.timer_ac_en =
3542 VXGE_HW_TIM_TIMER_AC_ENABLE;
3543
3544 /* For msi-x with napi (each vector
3545 has a handler of its own) -
3546 Set CI to OFF for all vpaths */
3547 device_config->vp_config[i].tti.timer_ci_en =
3548 VXGE_HW_TIM_TIMER_CI_DISABLE;
3549
3550 device_config->vp_config[i].tti.timer_ri_en =
3551 VXGE_HW_TIM_TIMER_RI_DISABLE;
3552
3553 device_config->vp_config[i].tti.util_sel =
3554 VXGE_HW_TIM_UTIL_SEL_LEGACY_TX_NET_UTIL;
3555
3556 device_config->vp_config[i].tti.ltimer_val =
3557 (VXGE_TTI_LTIMER_VAL * 1000) / 272;
3558
3559 device_config->vp_config[i].tti.rtimer_val =
3560 (VXGE_TTI_RTIMER_VAL * 1000) / 272;
3561
3562 device_config->vp_config[i].tti.urange_a = TTI_TX_URANGE_A;
3563 device_config->vp_config[i].tti.urange_b = TTI_TX_URANGE_B;
3564 device_config->vp_config[i].tti.urange_c = TTI_TX_URANGE_C;
3565 device_config->vp_config[i].tti.uec_a = TTI_TX_UFC_A;
3566 device_config->vp_config[i].tti.uec_b = TTI_TX_UFC_B;
3567 device_config->vp_config[i].tti.uec_c = TTI_TX_UFC_C;
3568 device_config->vp_config[i].tti.uec_d = TTI_TX_UFC_D;
3569
3570 /* Configure Rx rings */
3571 device_config->vp_config[i].ring.enable =
3572 VXGE_HW_RING_ENABLE;
3573
3574 device_config->vp_config[i].ring.ring_blocks =
3575 VXGE_HW_DEF_RING_BLOCKS;
3576 device_config->vp_config[i].ring.buffer_mode =
3577 VXGE_HW_RING_RXD_BUFFER_MODE_1;
3578 device_config->vp_config[i].ring.rxds_limit =
3579 VXGE_HW_DEF_RING_RXDS_LIMIT;
3580 device_config->vp_config[i].ring.scatter_mode =
3581 VXGE_HW_RING_SCATTER_MODE_A;
3582
3583 /* Configure rti properties */
3584 device_config->vp_config[i].rti.intr_enable =
3585 VXGE_HW_TIM_INTR_ENABLE;
3586
3587 device_config->vp_config[i].rti.btimer_val =
3588 (VXGE_RTI_BTIMER_VAL * 1000)/272;
3589
3590 device_config->vp_config[i].rti.timer_ac_en =
3591 VXGE_HW_TIM_TIMER_AC_ENABLE;
3592
3593 device_config->vp_config[i].rti.timer_ci_en =
3594 VXGE_HW_TIM_TIMER_CI_DISABLE;
3595
3596 device_config->vp_config[i].rti.timer_ri_en =
3597 VXGE_HW_TIM_TIMER_RI_DISABLE;
3598
3599 device_config->vp_config[i].rti.util_sel =
3600 VXGE_HW_TIM_UTIL_SEL_LEGACY_RX_NET_UTIL;
3601
3602 device_config->vp_config[i].rti.urange_a =
3603 RTI_RX_URANGE_A;
3604 device_config->vp_config[i].rti.urange_b =
3605 RTI_RX_URANGE_B;
3606 device_config->vp_config[i].rti.urange_c =
3607 RTI_RX_URANGE_C;
3608 device_config->vp_config[i].rti.uec_a = RTI_RX_UFC_A;
3609 device_config->vp_config[i].rti.uec_b = RTI_RX_UFC_B;
3610 device_config->vp_config[i].rti.uec_c = RTI_RX_UFC_C;
3611 device_config->vp_config[i].rti.uec_d = RTI_RX_UFC_D;
3612
3613 device_config->vp_config[i].rti.rtimer_val =
3614 (VXGE_RTI_RTIMER_VAL * 1000) / 272;
3615
3616 device_config->vp_config[i].rti.ltimer_val =
3617 (VXGE_RTI_LTIMER_VAL * 1000) / 272;
3618
3619 device_config->vp_config[i].rpa_strip_vlan_tag =
3620 vlan_tag_strip;
3621 }
3622
3623 driver_config->vpath_per_dev = temp;
3624 return no_of_vpaths;
3625}
3626
3627/* initialize device configuratrions */
3628static void __devinit vxge_device_config_init(
3629 struct vxge_hw_device_config *device_config,
3630 int *intr_type)
3631{
3632 /* Used for CQRQ/SRQ. */
3633 device_config->dma_blockpool_initial =
3634 VXGE_HW_INITIAL_DMA_BLOCK_POOL_SIZE;
3635
3636 device_config->dma_blockpool_max =
3637 VXGE_HW_MAX_DMA_BLOCK_POOL_SIZE;
3638
3639 if (max_mac_vpath > VXGE_MAX_MAC_ADDR_COUNT)
3640 max_mac_vpath = VXGE_MAX_MAC_ADDR_COUNT;
3641
3642#ifndef CONFIG_PCI_MSI
3643 vxge_debug_init(VXGE_ERR,
3644 "%s: This Kernel does not support "
3645 "MSI-X. Defaulting to INTA", VXGE_DRIVER_NAME);
3646 *intr_type = INTA;
3647#endif
3648
3649 /* Configure whether MSI-X or IRQL. */
3650 switch (*intr_type) {
3651 case INTA:
3652 device_config->intr_mode = VXGE_HW_INTR_MODE_IRQLINE;
3653 break;
3654
3655 case MSI_X:
3656 device_config->intr_mode = VXGE_HW_INTR_MODE_MSIX;
3657 break;
3658 }
3659 /* Timer period between device poll */
3660 device_config->device_poll_millis = VXGE_TIMER_DELAY;
3661
3662 /* Configure mac based steering. */
3663 device_config->rts_mac_en = addr_learn_en;
3664
3665 /* Configure Vpaths */
3666 device_config->rth_it_type = VXGE_HW_RTH_IT_TYPE_MULTI_IT;
3667
3668 vxge_debug_ll_config(VXGE_TRACE, "%s : Device Config Params ",
3669 __func__);
3670 vxge_debug_ll_config(VXGE_TRACE, "dma_blockpool_initial : %d",
3671 device_config->dma_blockpool_initial);
3672 vxge_debug_ll_config(VXGE_TRACE, "dma_blockpool_max : %d",
3673 device_config->dma_blockpool_max);
3674 vxge_debug_ll_config(VXGE_TRACE, "intr_mode : %d",
3675 device_config->intr_mode);
3676 vxge_debug_ll_config(VXGE_TRACE, "device_poll_millis : %d",
3677 device_config->device_poll_millis);
3678 vxge_debug_ll_config(VXGE_TRACE, "rts_mac_en : %d",
3679 device_config->rts_mac_en);
3680 vxge_debug_ll_config(VXGE_TRACE, "rth_en : %d",
3681 device_config->rth_en);
3682 vxge_debug_ll_config(VXGE_TRACE, "rth_it_type : %d",
3683 device_config->rth_it_type);
3684}
3685
3686static void __devinit vxge_print_parm(struct vxgedev *vdev, u64 vpath_mask)
3687{
3688 int i;
3689
3690 vxge_debug_init(VXGE_TRACE,
3691 "%s: %d Vpath(s) opened",
3692 vdev->ndev->name, vdev->no_of_vpath);
3693
3694 switch (vdev->config.intr_type) {
3695 case INTA:
3696 vxge_debug_init(VXGE_TRACE,
3697 "%s: Interrupt type INTA", vdev->ndev->name);
3698 break;
3699
3700 case MSI_X:
3701 vxge_debug_init(VXGE_TRACE,
3702 "%s: Interrupt type MSI-X", vdev->ndev->name);
3703 break;
3704 }
3705
3706 if (vdev->config.rth_steering) {
3707 vxge_debug_init(VXGE_TRACE,
3708 "%s: RTH steering enabled for TCP_IPV4",
3709 vdev->ndev->name);
3710 } else {
3711 vxge_debug_init(VXGE_TRACE,
3712 "%s: RTH steering disabled", vdev->ndev->name);
3713 }
3714
3715 switch (vdev->config.tx_steering_type) {
3716 case NO_STEERING:
3717 vxge_debug_init(VXGE_TRACE,
3718 "%s: Tx steering disabled", vdev->ndev->name);
3719 break;
3720 case TX_PRIORITY_STEERING:
3721 vxge_debug_init(VXGE_TRACE,
3722 "%s: Unsupported tx steering option",
3723 vdev->ndev->name);
3724 vxge_debug_init(VXGE_TRACE,
3725 "%s: Tx steering disabled", vdev->ndev->name);
3726 vdev->config.tx_steering_type = 0;
3727 break;
3728 case TX_VLAN_STEERING:
3729 vxge_debug_init(VXGE_TRACE,
3730 "%s: Unsupported tx steering option",
3731 vdev->ndev->name);
3732 vxge_debug_init(VXGE_TRACE,
3733 "%s: Tx steering disabled", vdev->ndev->name);
3734 vdev->config.tx_steering_type = 0;
3735 break;
3736 case TX_MULTIQ_STEERING:
3737 vxge_debug_init(VXGE_TRACE,
3738 "%s: Tx multiqueue steering enabled",
3739 vdev->ndev->name);
3740 break;
3741 case TX_PORT_STEERING:
3742 vxge_debug_init(VXGE_TRACE,
3743 "%s: Tx port steering enabled",
3744 vdev->ndev->name);
3745 break;
3746 default:
3747 vxge_debug_init(VXGE_ERR,
3748 "%s: Unsupported tx steering type",
3749 vdev->ndev->name);
3750 vxge_debug_init(VXGE_TRACE,
3751 "%s: Tx steering disabled", vdev->ndev->name);
3752 vdev->config.tx_steering_type = 0;
3753 }
3754
3755 if (vdev->config.gro_enable) {
3756 vxge_debug_init(VXGE_ERR,
3757 "%s: Generic receive offload enabled",
3758 vdev->ndev->name);
3759 } else
3760 vxge_debug_init(VXGE_TRACE,
3761 "%s: Generic receive offload disabled",
3762 vdev->ndev->name);
3763
3764 if (vdev->config.addr_learn_en)
3765 vxge_debug_init(VXGE_TRACE,
3766 "%s: MAC Address learning enabled", vdev->ndev->name);
3767
3768 vxge_debug_init(VXGE_TRACE,
3769 "%s: Rx doorbell mode enabled", vdev->ndev->name);
3770
3771 for (i = 0; i < VXGE_HW_MAX_VIRTUAL_PATHS; i++) {
3772 if (!vxge_bVALn(vpath_mask, i, 1))
3773 continue;
3774 vxge_debug_ll_config(VXGE_TRACE,
3775 "%s: MTU size - %d", vdev->ndev->name,
3776 ((struct __vxge_hw_device *)(vdev->devh))->
3777 config.vp_config[i].mtu);
3778 vxge_debug_init(VXGE_TRACE,
3779 "%s: VLAN tag stripping %s", vdev->ndev->name,
3780 ((struct __vxge_hw_device *)(vdev->devh))->
3781 config.vp_config[i].rpa_strip_vlan_tag
3782 ? "Enabled" : "Disabled");
3783 vxge_debug_init(VXGE_TRACE,
3784 "%s: Ring blocks : %d", vdev->ndev->name,
3785 ((struct __vxge_hw_device *)(vdev->devh))->
3786 config.vp_config[i].ring.ring_blocks);
3787 vxge_debug_init(VXGE_TRACE,
3788 "%s: Fifo blocks : %d", vdev->ndev->name,
3789 ((struct __vxge_hw_device *)(vdev->devh))->
3790 config.vp_config[i].fifo.fifo_blocks);
3791 vxge_debug_ll_config(VXGE_TRACE,
3792 "%s: Max frags : %d", vdev->ndev->name,
3793 ((struct __vxge_hw_device *)(vdev->devh))->
3794 config.vp_config[i].fifo.max_frags);
3795 break;
3796 }
3797}
3798
3799#ifdef CONFIG_PM
3800/**
3801 * vxge_pm_suspend - vxge power management suspend entry point
3802 *
3803 */
3804static int vxge_pm_suspend(struct pci_dev *pdev, pm_message_t state)
3805{
3806 return -ENOSYS;
3807}
3808/**
3809 * vxge_pm_resume - vxge power management resume entry point
3810 *
3811 */
3812static int vxge_pm_resume(struct pci_dev *pdev)
3813{
3814 return -ENOSYS;
3815}
3816
3817#endif
3818
3819/**
3820 * vxge_io_error_detected - called when PCI error is detected
3821 * @pdev: Pointer to PCI device
3822 * @state: The current pci connection state
3823 *
3824 * This function is called after a PCI bus error affecting
3825 * this device has been detected.
3826 */
3827static pci_ers_result_t vxge_io_error_detected(struct pci_dev *pdev,
3828 pci_channel_state_t state)
3829{
3830 struct __vxge_hw_device *hldev =
3831 (struct __vxge_hw_device *) pci_get_drvdata(pdev);
3832 struct net_device *netdev = hldev->ndev;
3833
3834 netif_device_detach(netdev);
3835
e33b992d
DN		 3836 if (state == pci_channel_io_perm_failure)
3837 return PCI_ERS_RESULT_DISCONNECT;
3838
703da5a1
RV		 3839 if (netif_running(netdev)) {
3840 /* Bring down the card, while avoiding PCI I/O */
3841 do_vxge_close(netdev, 0);
3842 }
3843
3844 pci_disable_device(pdev);
3845
3846 return PCI_ERS_RESULT_NEED_RESET;
3847}
3848
3849/**
3850 * vxge_io_slot_reset - called after the pci bus has been reset.
3851 * @pdev: Pointer to PCI device
3852 *
3853 * Restart the card from scratch, as if from a cold-boot.
3854 * At this point, the card has exprienced a hard reset,
3855 * followed by fixups by BIOS, and has its config space
3856 * set up identically to what it was at cold boot.
3857 */
3858static pci_ers_result_t vxge_io_slot_reset(struct pci_dev *pdev)
3859{
3860 struct __vxge_hw_device *hldev =
3861 (struct __vxge_hw_device *) pci_get_drvdata(pdev);
3862 struct net_device *netdev = hldev->ndev;
3863
3864 struct vxgedev *vdev = netdev_priv(netdev);
3865
3866 if (pci_enable_device(pdev)) {
75f5e1c6 3867 netdev_err(netdev, "Cannot re-enable device after reset\n");
703da5a1
RV		 3868 return PCI_ERS_RESULT_DISCONNECT;
3869 }
3870
3871 pci_set_master(pdev);
3872 vxge_reset(vdev);
3873
3874 return PCI_ERS_RESULT_RECOVERED;
3875}
3876
3877/**
3878 * vxge_io_resume - called when traffic can start flowing again.
3879 * @pdev: Pointer to PCI device
3880 *
3881 * This callback is called when the error recovery driver tells
3882 * us that its OK to resume normal operation.
3883 */
3884static void vxge_io_resume(struct pci_dev *pdev)
3885{
3886 struct __vxge_hw_device *hldev =
3887 (struct __vxge_hw_device *) pci_get_drvdata(pdev);
3888 struct net_device *netdev = hldev->ndev;
3889
3890 if (netif_running(netdev)) {
3891 if (vxge_open(netdev)) {
75f5e1c6
JP		 3892 netdev_err(netdev,
3893 "Can't bring device back up after reset\n");
703da5a1
RV		 3894 return;
3895 }
3896 }
3897
3898 netif_device_attach(netdev);
3899}
3900
cb27ec60
SH		 3901static inline u32 vxge_get_num_vfs(u64 function_mode)
3902{
3903 u32 num_functions = 0;
3904
3905 switch (function_mode) {
3906 case VXGE_HW_FUNCTION_MODE_MULTI_FUNCTION:
3907 case VXGE_HW_FUNCTION_MODE_SRIOV_8:
3908 num_functions = 8;
3909 break;
3910 case VXGE_HW_FUNCTION_MODE_SINGLE_FUNCTION:
3911 num_functions = 1;
3912 break;
3913 case VXGE_HW_FUNCTION_MODE_SRIOV:
3914 case VXGE_HW_FUNCTION_MODE_MRIOV:
3915 case VXGE_HW_FUNCTION_MODE_MULTI_FUNCTION_17:
3916 num_functions = 17;
3917 break;
3918 case VXGE_HW_FUNCTION_MODE_SRIOV_4:
3919 num_functions = 4;
3920 break;
3921 case VXGE_HW_FUNCTION_MODE_MULTI_FUNCTION_2:
3922 num_functions = 2;
3923 break;
3924 case VXGE_HW_FUNCTION_MODE_MRIOV_8:
3925 num_functions = 8; /* TODO */
3926 break;
3927 }
3928 return num_functions;
3929}
3930
703da5a1
RV		 3931/**
3932 * vxge_probe
3933 * @pdev : structure containing the PCI related information of the device.
3934 * @pre: List of PCI devices supported by the driver listed in vxge_id_table.
3935 * Description:
3936 * This function is called when a new PCI device gets detected and initializes
3937 * it.
3938 * Return value:
3939 * returns 0 on success and negative on failure.
3940 *
3941 */
3942static int __devinit
3943vxge_probe(struct pci_dev *pdev, const struct pci_device_id *pre)
3944{
3945 struct __vxge_hw_device *hldev;
3946 enum vxge_hw_status status;
3947 int ret;
3948 int high_dma = 0;
3949 u64 vpath_mask = 0;
3950 struct vxgedev *vdev;
7dad171c 3951 struct vxge_config *ll_config = NULL;
703da5a1
RV		 3952 struct vxge_hw_device_config *device_config = NULL;
3953 struct vxge_hw_device_attr attr;
3954 int i, j, no_of_vpath = 0, max_vpath_supported = 0;
3955 u8 *macaddr;
3956 struct vxge_mac_addrs *entry;
3957 static int bus = -1, device = -1;
cb27ec60 3958 u32 host_type;
703da5a1 3959 u8 new_device = 0;
cb27ec60
SH		 3960 enum vxge_hw_status is_privileged;
3961 u32 function_mode;
3962 u32 num_vfs = 0;
703da5a1
RV		 3963
3964 vxge_debug_entryexit(VXGE_TRACE, "%s:%d", __func__, __LINE__);
3965 attr.pdev = pdev;
3966
cb27ec60
SH		 3967 /* In SRIOV-17 mode, functions of the same adapter
3968 * can be deployed on different buses */
3969 if ((!pdev->is_virtfn) && ((bus != pdev->bus->number) ||
3970 (device != PCI_SLOT(pdev->devfn))))
703da5a1
RV		 3971 new_device = 1;
3972
3973 bus = pdev->bus->number;
3974 device = PCI_SLOT(pdev->devfn);
3975
3976 if (new_device) {
3977 if (driver_config->config_dev_cnt &&
3978 (driver_config->config_dev_cnt !=
3979 driver_config->total_dev_cnt))
3980 vxge_debug_init(VXGE_ERR,
3981 "%s: Configured %d of %d devices",
3982 VXGE_DRIVER_NAME,
3983 driver_config->config_dev_cnt,
3984 driver_config->total_dev_cnt);
3985 driver_config->config_dev_cnt = 0;
3986 driver_config->total_dev_cnt = 0;
703da5a1 3987 }
9002397e
SH		 3988 /* Now making the CPU based no of vpath calculation
3989 * applicable for individual functions as well.
3990 */
3991 driver_config->g_no_cpus = 0;
657205bd
SH		 3992 driver_config->vpath_per_dev = max_config_vpath;
3993
703da5a1
RV		 3994 driver_config->total_dev_cnt++;
3995 if (++driver_config->config_dev_cnt > max_config_dev) {
3996 ret = 0;
3997 goto _exit0;
3998 }
3999
4000 device_config = kzalloc(sizeof(struct vxge_hw_device_config),
4001 GFP_KERNEL);
4002 if (!device_config) {
4003 ret = -ENOMEM;
4004 vxge_debug_init(VXGE_ERR,
4005 "device_config : malloc failed %s %d",
4006 __FILE__, __LINE__);
4007 goto _exit0;
4008 }
4009
7dad171c
PB		 4010 ll_config = kzalloc(sizeof(*ll_config), GFP_KERNEL);
4011 if (!ll_config) {
4012 ret = -ENOMEM;
4013 vxge_debug_init(VXGE_ERR,
4014 "ll_config : malloc failed %s %d",
4015 __FILE__, __LINE__);
4016 goto _exit0;
4017 }
4018 ll_config->tx_steering_type = TX_MULTIQ_STEERING;
4019 ll_config->intr_type = MSI_X;
4020 ll_config->napi_weight = NEW_NAPI_WEIGHT;
4021 ll_config->rth_steering = RTH_STEERING;
703da5a1
RV		 4022
4023 /* get the default configuration parameters */
4024 vxge_hw_device_config_default_get(device_config);
4025
4026 /* initialize configuration parameters */
7dad171c 4027 vxge_device_config_init(device_config, &ll_config->intr_type);
703da5a1
RV		 4028
4029 ret = pci_enable_device(pdev);
4030 if (ret) {
4031 vxge_debug_init(VXGE_ERR,
4032 "%s : can not enable PCI device", __func__);
4033 goto _exit0;
4034 }
4035
b3837cec 4036 if (!pci_set_dma_mask(pdev, DMA_BIT_MASK(64))) {
703da5a1
RV		 4037 vxge_debug_ll_config(VXGE_TRACE,
4038 "%s : using 64bit DMA", __func__);
4039
4040 high_dma = 1;
4041
4042 if (pci_set_consistent_dma_mask(pdev,
b3837cec 4043 DMA_BIT_MASK(64))) {
703da5a1
RV		 4044 vxge_debug_init(VXGE_ERR,
4045 "%s : unable to obtain 64bit DMA for "
4046 "consistent allocations", __func__);
4047 ret = -ENOMEM;
4048 goto _exit1;
4049 }
b3837cec 4050 } else if (!pci_set_dma_mask(pdev, DMA_BIT_MASK(32))) {
703da5a1
RV		 4051 vxge_debug_ll_config(VXGE_TRACE,
4052 "%s : using 32bit DMA", __func__);
4053 } else {
4054 ret = -ENOMEM;
4055 goto _exit1;
4056 }
4057
4058 if (pci_request_regions(pdev, VXGE_DRIVER_NAME)) {
4059 vxge_debug_init(VXGE_ERR,
4060 "%s : request regions failed", __func__);
4061 ret = -ENODEV;
4062 goto _exit1;
4063 }
4064
4065 pci_set_master(pdev);
4066
4067 attr.bar0 = pci_ioremap_bar(pdev, 0);
4068 if (!attr.bar0) {
4069 vxge_debug_init(VXGE_ERR,
4070 "%s : cannot remap io memory bar0", __func__);
4071 ret = -ENODEV;
4072 goto _exit2;
4073 }
4074 vxge_debug_ll_config(VXGE_TRACE,
4075 "pci ioremap bar0: %p:0x%llx",
4076 attr.bar0,
4077 (unsigned long long)pci_resource_start(pdev, 0));
4078
703da5a1 4079 status = vxge_hw_device_hw_info_get(attr.bar0,
7dad171c 4080 &ll_config->device_hw_info);
703da5a1
RV		 4081 if (status != VXGE_HW_OK) {
4082 vxge_debug_init(VXGE_ERR,
4083 "%s: Reading of hardware info failed."
4084 "Please try upgrading the firmware.", VXGE_DRIVER_NAME);
4085 ret = -EINVAL;
7975d1ee 4086 goto _exit3;
703da5a1
RV		 4087 }
4088
7dad171c 4089 if (ll_config->device_hw_info.fw_version.major !=
22fa125e 4090 VXGE_DRIVER_FW_VERSION_MAJOR) {
703da5a1 4091 vxge_debug_init(VXGE_ERR,
22fa125e
SH		 4092 "%s: Incorrect firmware version."
4093 "Please upgrade the firmware to version 1.x.x",
4094 VXGE_DRIVER_NAME);
703da5a1 4095 ret = -EINVAL;
7975d1ee 4096 goto _exit3;
703da5a1
RV		 4097 }
4098
7dad171c 4099 vpath_mask = ll_config->device_hw_info.vpath_mask;
703da5a1
RV		 4100 if (vpath_mask == 0) {
4101 vxge_debug_ll_config(VXGE_TRACE,
4102 "%s: No vpaths available in device", VXGE_DRIVER_NAME);
4103 ret = -EINVAL;
7975d1ee 4104 goto _exit3;
703da5a1
RV		 4105 }
4106
4107 vxge_debug_ll_config(VXGE_TRACE,
4108 "%s:%d Vpath mask = %llx", __func__, __LINE__,
4109 (unsigned long long)vpath_mask);
4110
7dad171c
PB		 4111 function_mode = ll_config->device_hw_info.function_mode;
4112 host_type = ll_config->device_hw_info.host_type;
cb27ec60 4113 is_privileged = __vxge_hw_device_is_privilaged(host_type,
7dad171c 4114 ll_config->device_hw_info.func_id);
cb27ec60 4115
703da5a1
RV		 4116 /* Check how many vpaths are available */
4117 for (i = 0; i < VXGE_HW_MAX_VIRTUAL_PATHS; i++) {
4118 if (!((vpath_mask) & vxge_mBIT(i)))
4119 continue;
4120 max_vpath_supported++;
4121 }
4122
cb27ec60
SH		 4123 if (new_device)
4124 num_vfs = vxge_get_num_vfs(function_mode) - 1;
4125
5dbc9011 4126 /* Enable SRIOV mode, if firmware has SRIOV support and if it is a PF */
cb27ec60 4127 if (is_sriov(function_mode) && (max_config_dev > 1) &&
7dad171c 4128 (ll_config->intr_type != INTA) &&
cb27ec60
SH		 4129 (is_privileged == VXGE_HW_OK)) {
4130 ret = pci_enable_sriov(pdev, ((max_config_dev - 1) < num_vfs)
4131 ? (max_config_dev - 1) : num_vfs);
4132 if (ret)
4133 vxge_debug_ll_config(VXGE_ERR,
4134 "Failed in enabling SRIOV mode: %d\n", ret);
5dbc9011
SS		 4135 }
4136
703da5a1
RV		 4137 /*
4138 * Configure vpaths and get driver configured number of vpaths
4139 * which is less than or equal to the maximum vpaths per function.
4140 */
7dad171c 4141 no_of_vpath = vxge_config_vpaths(device_config, vpath_mask, ll_config);
703da5a1
RV		 4142 if (!no_of_vpath) {
4143 vxge_debug_ll_config(VXGE_ERR,
4144 "%s: No more vpaths to configure", VXGE_DRIVER_NAME);
4145 ret = 0;
7975d1ee 4146 goto _exit3;
703da5a1
RV		 4147 }
4148
4149 /* Setting driver callbacks */
4150 attr.uld_callbacks.link_up = vxge_callback_link_up;
4151 attr.uld_callbacks.link_down = vxge_callback_link_down;
4152 attr.uld_callbacks.crit_err = vxge_callback_crit_err;
4153
4154 status = vxge_hw_device_initialize(&hldev, &attr, device_config);
4155 if (status != VXGE_HW_OK) {
4156 vxge_debug_init(VXGE_ERR,
4157 "Failed to initialize device (%d)", status);
4158 ret = -EINVAL;
7975d1ee 4159 goto _exit3;
703da5a1
RV		 4160 }
4161
fa41fd10
SH		 4162 /* if FCS stripping is not disabled in MAC fail driver load */
4163 if (vxge_hw_vpath_strip_fcs_check(hldev, vpath_mask) != VXGE_HW_OK) {
4164 vxge_debug_init(VXGE_ERR,
4165 "%s: FCS stripping is not disabled in MAC"
4166 " failing driver load", VXGE_DRIVER_NAME);
4167 ret = -EINVAL;
4168 goto _exit4;
4169 }
4170
703da5a1
RV		 4171 vxge_hw_device_debug_set(hldev, VXGE_ERR, VXGE_COMPONENT_LL);
4172
4173 /* set private device info */
4174 pci_set_drvdata(pdev, hldev);
4175
7dad171c
PB		 4176 ll_config->gro_enable = VXGE_GRO_ALWAYS_AGGREGATE;
4177 ll_config->fifo_indicate_max_pkts = VXGE_FIFO_INDICATE_MAX_PKTS;
4178 ll_config->addr_learn_en = addr_learn_en;
4179 ll_config->rth_algorithm = RTH_ALG_JENKINS;
47f01db4
JM		 4180 ll_config->rth_hash_type_tcpipv4 = 1;
4181 ll_config->rth_hash_type_ipv4 = 0;
4182 ll_config->rth_hash_type_tcpipv6 = 0;
4183 ll_config->rth_hash_type_ipv6 = 0;
4184 ll_config->rth_hash_type_tcpipv6ex = 0;
4185 ll_config->rth_hash_type_ipv6ex = 0;
7dad171c
PB		 4186 ll_config->rth_bkt_sz = RTH_BUCKET_SIZE;
4187 ll_config->tx_pause_enable = VXGE_PAUSE_CTRL_ENABLE;
4188 ll_config->rx_pause_enable = VXGE_PAUSE_CTRL_ENABLE;
4189
4190 if (vxge_device_register(hldev, ll_config, high_dma, no_of_vpath,
703da5a1
RV		 4191 &vdev)) {
4192 ret = -EINVAL;
7975d1ee 4193 goto _exit4;
703da5a1
RV		 4194 }
4195
4196 vxge_hw_device_debug_set(hldev, VXGE_TRACE, VXGE_COMPONENT_LL);
4197 VXGE_COPY_DEBUG_INFO_TO_LL(vdev, vxge_hw_device_error_level_get(hldev),
4198 vxge_hw_device_trace_level_get(hldev));
4199
4200 /* set private HW device info */
4201 hldev->ndev = vdev->ndev;
4202 vdev->mtu = VXGE_HW_DEFAULT_MTU;
4203 vdev->bar0 = attr.bar0;
703da5a1
RV		 4204 vdev->max_vpath_supported = max_vpath_supported;
4205 vdev->no_of_vpath = no_of_vpath;
4206
4207 /* Virtual Path count */
4208 for (i = 0, j = 0; i < VXGE_HW_MAX_VIRTUAL_PATHS; i++) {
4209 if (!vxge_bVALn(vpath_mask, i, 1))
4210 continue;
4211 if (j >= vdev->no_of_vpath)
4212 break;
4213
4214 vdev->vpaths[j].is_configured = 1;
4215 vdev->vpaths[j].device_id = i;
703da5a1
RV		 4216 vdev->vpaths[j].ring.driver_id = j;
4217 vdev->vpaths[j].vdev = vdev;
4218 vdev->vpaths[j].max_mac_addr_cnt = max_mac_vpath;
4219 memcpy((u8 *)vdev->vpaths[j].macaddr,
7dad171c 4220 ll_config->device_hw_info.mac_addrs[i],
703da5a1
RV		 4221 ETH_ALEN);
4222
4223 /* Initialize the mac address list header */
4224 INIT_LIST_HEAD(&vdev->vpaths[j].mac_addr_list);
4225
4226 vdev->vpaths[j].mac_addr_cnt = 0;
4227 vdev->vpaths[j].mcast_addr_cnt = 0;
4228 j++;
4229 }
4230 vdev->exec_mode = VXGE_EXEC_MODE_DISABLE;
4231 vdev->max_config_port = max_config_port;
4232
4233 vdev->vlan_tag_strip = vlan_tag_strip;
4234
4235 /* map the hashing selector table to the configured vpaths */
4236 for (i = 0; i < vdev->no_of_vpath; i++)
4237 vdev->vpath_selector[i] = vpath_selector[i];
4238
4239 macaddr = (u8 *)vdev->vpaths[0].macaddr;
4240
7dad171c
PB		 4241 ll_config->device_hw_info.serial_number[VXGE_HW_INFO_LEN - 1] = '\0';
4242 ll_config->device_hw_info.product_desc[VXGE_HW_INFO_LEN - 1] = '\0';
4243 ll_config->device_hw_info.part_number[VXGE_HW_INFO_LEN - 1] = '\0';
703da5a1
RV		 4244
4245 vxge_debug_init(VXGE_TRACE, "%s: SERIAL NUMBER: %s",
7dad171c 4246 vdev->ndev->name, ll_config->device_hw_info.serial_number);
703da5a1
RV		 4247
4248 vxge_debug_init(VXGE_TRACE, "%s: PART NUMBER: %s",
7dad171c 4249 vdev->ndev->name, ll_config->device_hw_info.part_number);
703da5a1
RV		 4250
4251 vxge_debug_init(VXGE_TRACE, "%s: Neterion %s Server Adapter",
7dad171c 4252 vdev->ndev->name, ll_config->device_hw_info.product_desc);
703da5a1 4253
bf54e736 4254 vxge_debug_init(VXGE_TRACE, "%s: MAC ADDR: %pM",
4255 vdev->ndev->name, macaddr);
703da5a1
RV		 4256
4257 vxge_debug_init(VXGE_TRACE, "%s: Link Width x%d",
4258 vdev->ndev->name, vxge_hw_device_link_width_get(hldev));
4259
4260 vxge_debug_init(VXGE_TRACE,
4261 "%s: Firmware version : %s Date : %s", vdev->ndev->name,
7dad171c
PB		 4262 ll_config->device_hw_info.fw_version.version,
4263 ll_config->device_hw_info.fw_date.date);
703da5a1 4264
0a25bdc6 4265 if (new_device) {
7dad171c 4266 switch (ll_config->device_hw_info.function_mode) {
0a25bdc6
SH		 4267 case VXGE_HW_FUNCTION_MODE_SINGLE_FUNCTION:
4268 vxge_debug_init(VXGE_TRACE,
4269 "%s: Single Function Mode Enabled", vdev->ndev->name);
4270 break;
4271 case VXGE_HW_FUNCTION_MODE_MULTI_FUNCTION:
4272 vxge_debug_init(VXGE_TRACE,
4273 "%s: Multi Function Mode Enabled", vdev->ndev->name);
4274 break;
4275 case VXGE_HW_FUNCTION_MODE_SRIOV:
4276 vxge_debug_init(VXGE_TRACE,
4277 "%s: Single Root IOV Mode Enabled", vdev->ndev->name);
4278 break;
4279 case VXGE_HW_FUNCTION_MODE_MRIOV:
4280 vxge_debug_init(VXGE_TRACE,
4281 "%s: Multi Root IOV Mode Enabled", vdev->ndev->name);
4282 break;
4283 }
4284 }
4285
703da5a1
RV		 4286 vxge_print_parm(vdev, vpath_mask);
4287
4288 /* Store the fw version for ethttool option */
7dad171c 4289 strcpy(vdev->fw_version, ll_config->device_hw_info.fw_version.version);
703da5a1
RV		 4290 memcpy(vdev->ndev->dev_addr, (u8 *)vdev->vpaths[0].macaddr, ETH_ALEN);
4291 memcpy(vdev->ndev->perm_addr, vdev->ndev->dev_addr, ETH_ALEN);
4292
4293 /* Copy the station mac address to the list */
4294 for (i = 0; i < vdev->no_of_vpath; i++) {
4295 entry = (struct vxge_mac_addrs *)
4296 kzalloc(sizeof(struct vxge_mac_addrs),
4297 GFP_KERNEL);
4298 if (NULL == entry) {
4299 vxge_debug_init(VXGE_ERR,
4300 "%s: mac_addr_list : memory allocation failed",
4301 vdev->ndev->name);
4302 ret = -EPERM;
7975d1ee 4303 goto _exit5;
703da5a1
RV		 4304 }
4305 macaddr = (u8 *)&entry->macaddr;
4306 memcpy(macaddr, vdev->ndev->dev_addr, ETH_ALEN);
4307 list_add(&entry->item, &vdev->vpaths[i].mac_addr_list);
4308 vdev->vpaths[i].mac_addr_cnt = 1;
4309 }
4310
914d0d71 4311 kfree(device_config);
eb5f10c2
SH		 4312
4313 /*
4314 * INTA is shared in multi-function mode. This is unlike the INTA
4315 * implementation in MR mode, where each VH has its own INTA message.
4316 * - INTA is masked (disabled) as long as at least one function sets
4317 * its TITAN_MASK_ALL_INT.ALARM bit.
4318 * - INTA is unmasked (enabled) when all enabled functions have cleared
4319 * their own TITAN_MASK_ALL_INT.ALARM bit.
4320 * The TITAN_MASK_ALL_INT ALARM & TRAFFIC bits are cleared on power up.
4321 * Though this driver leaves the top level interrupts unmasked while
4322 * leaving the required module interrupt bits masked on exit, there
4323 * could be a rougue driver around that does not follow this procedure
4324 * resulting in a failure to generate interrupts. The following code is
4325 * present to prevent such a failure.
4326 */
4327
7dad171c 4328 if (ll_config->device_hw_info.function_mode ==
eb5f10c2
SH		 4329 VXGE_HW_FUNCTION_MODE_MULTI_FUNCTION)
4330 if (vdev->config.intr_type == INTA)
4331 vxge_hw_device_unmask_all(hldev);
4332
703da5a1
RV		 4333 vxge_debug_entryexit(VXGE_TRACE, "%s: %s:%d Exiting...",
4334 vdev->ndev->name, __func__, __LINE__);
4335
4336 vxge_hw_device_debug_set(hldev, VXGE_ERR, VXGE_COMPONENT_LL);
4337 VXGE_COPY_DEBUG_INFO_TO_LL(vdev, vxge_hw_device_error_level_get(hldev),
4338 vxge_hw_device_trace_level_get(hldev));
4339
7dad171c 4340 kfree(ll_config);
703da5a1
RV		 4341 return 0;
4342
7975d1ee 4343_exit5:
703da5a1
RV		 4344 for (i = 0; i < vdev->no_of_vpath; i++)
4345 vxge_free_mac_add_list(&vdev->vpaths[i]);
4346
4347 vxge_device_unregister(hldev);
7975d1ee 4348_exit4:
5dbc9011 4349 pci_disable_sriov(pdev);
703da5a1 4350 vxge_hw_device_terminate(hldev);
703da5a1
RV		 4351_exit3:
4352 iounmap(attr.bar0);
4353_exit2:
4354 pci_release_regions(pdev);
4355_exit1:
4356 pci_disable_device(pdev);
4357_exit0:
7dad171c 4358 kfree(ll_config);
703da5a1
RV		 4359 kfree(device_config);
4360 driver_config->config_dev_cnt--;
4361 pci_set_drvdata(pdev, NULL);
4362 return ret;
4363}
4364
4365/**
4366 * vxge_rem_nic - Free the PCI device
4367 * @pdev: structure containing the PCI related information of the device.
4368 * Description: This function is called by the Pci subsystem to release a
4369 * PCI device and free up all resource held up by the device.
4370 */
4371static void __devexit
4372vxge_remove(struct pci_dev *pdev)
4373{
4374 struct __vxge_hw_device *hldev;
4375 struct vxgedev *vdev = NULL;
4376 struct net_device *dev;
4377 int i = 0;
4378#if ((VXGE_DEBUG_INIT & VXGE_DEBUG_MASK) || \
4379 (VXGE_DEBUG_ENTRYEXIT & VXGE_DEBUG_MASK))
4380 u32 level_trace;
4381#endif
4382
4383 hldev = (struct __vxge_hw_device *) pci_get_drvdata(pdev);
4384
4385 if (hldev == NULL)
4386 return;
4387 dev = hldev->ndev;
4388 vdev = netdev_priv(dev);
4389
4390#if ((VXGE_DEBUG_INIT & VXGE_DEBUG_MASK) || \
4391 (VXGE_DEBUG_ENTRYEXIT & VXGE_DEBUG_MASK))
4392 level_trace = vdev->level_trace;
4393#endif
4394 vxge_debug_entryexit(level_trace,
4395 "%s:%d", __func__, __LINE__);
4396
4397 vxge_debug_init(level_trace,
4398 "%s : removing PCI device...", __func__);
4399 vxge_device_unregister(hldev);
4400
4401 for (i = 0; i < vdev->no_of_vpath; i++) {
4402 vxge_free_mac_add_list(&vdev->vpaths[i]);
4403 vdev->vpaths[i].mcast_addr_cnt = 0;
4404 vdev->vpaths[i].mac_addr_cnt = 0;
4405 }
4406
4407 kfree(vdev->vpaths);
4408
4409 iounmap(vdev->bar0);
703da5a1 4410
5dbc9011
SS		 4411 pci_disable_sriov(pdev);
4412
703da5a1
RV		 4413 /* we are safe to free it now */
4414 free_netdev(dev);
4415
4416 vxge_debug_init(level_trace,
4417 "%s:%d Device unregistered", __func__, __LINE__);
4418
4419 vxge_hw_device_terminate(hldev);
4420
4421 pci_disable_device(pdev);
4422 pci_release_regions(pdev);
4423 pci_set_drvdata(pdev, NULL);
4424 vxge_debug_entryexit(level_trace,
4425 "%s:%d Exiting...", __func__, __LINE__);
4426}
4427
4428static struct pci_error_handlers vxge_err_handler = {
4429 .error_detected = vxge_io_error_detected,
4430 .slot_reset = vxge_io_slot_reset,
4431 .resume = vxge_io_resume,
4432};
4433
4434static struct pci_driver vxge_driver = {
4435 .name = VXGE_DRIVER_NAME,
4436 .id_table = vxge_id_table,
4437 .probe = vxge_probe,
4438 .remove = __devexit_p(vxge_remove),
4439#ifdef CONFIG_PM
4440 .suspend = vxge_pm_suspend,
4441 .resume = vxge_pm_resume,
4442#endif
4443 .err_handler = &vxge_err_handler,
4444};
4445
4446static int __init
4447vxge_starter(void)
4448{
4449 int ret = 0;
703da5a1 4450
75f5e1c6
JP		 4451 pr_info("Copyright(c) 2002-2010 Exar Corp.\n");
4452 pr_info("Driver version: %s\n", DRV_VERSION);
703da5a1
RV		 4453
4454 verify_bandwidth();
4455
4456 driver_config = kzalloc(sizeof(struct vxge_drv_config), GFP_KERNEL);
4457 if (!driver_config)
4458 return -ENOMEM;
4459
4460 ret = pci_register_driver(&vxge_driver);
4461
4462 if (driver_config->config_dev_cnt &&
4463 (driver_config->config_dev_cnt != driver_config->total_dev_cnt))
4464 vxge_debug_init(VXGE_ERR,
4465 "%s: Configured %d of %d devices",
4466 VXGE_DRIVER_NAME, driver_config->config_dev_cnt,
4467 driver_config->total_dev_cnt);
4468
4469 if (ret)
4470 kfree(driver_config);
4471
4472 return ret;
4473}
4474
4475static void __exit
4476vxge_closer(void)
4477{
4478 pci_unregister_driver(&vxge_driver);
4479 kfree(driver_config);
4480}
4481module_init(vxge_starter);
4482module_exit(vxge_closer);
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