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.
10 * vxge-main.c: Driver for Neterion Inc's X3100 Series 10GbE PCIe I/O
11 * Virtualized Server Adapter.
12 * Copyright(c) 2002-2009 Neterion Inc.
14 * The module loadable parameters that are supported by the driver and a brief
15 * explanation of all the variables:
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.
24 * Enable learning the mac address of the guest OS interface in
25 * a virtualization environment.
30 * Maximum number of port to be supported.
34 * This configures the maximum no of VPATH configures for each
36 * MIN - 1 and MAX - 17
39 * This configures maximum no of Device function to be enabled.
40 * MIN - 1 and MAX - 17
42 ******************************************************************************/
44 #include <linux/if_vlan.h>
45 #include <linux/pci.h>
46 #include <linux/slab.h>
47 #include <linux/tcp.h>
49 #include <linux/netdevice.h>
50 #include <linux/etherdevice.h>
51 #include "vxge-main.h"
54 MODULE_LICENSE("Dual BSD/GPL");
55 MODULE_DESCRIPTION("Neterion's X3100 Series 10GbE PCIe I/O"
56 "Virtualized Server Adapter");
58 static DEFINE_PCI_DEVICE_TABLE(vxge_id_table) = {
59 {PCI_VENDOR_ID_S2IO, PCI_DEVICE_ID_TITAN_WIN, PCI_ANY_ID,
61 {PCI_VENDOR_ID_S2IO, PCI_DEVICE_ID_TITAN_UNI, PCI_ANY_ID,
66 MODULE_DEVICE_TABLE(pci, vxge_id_table);
68 VXGE_MODULE_PARAM_INT(vlan_tag_strip, VXGE_HW_VPATH_RPA_STRIP_VLAN_TAG_ENABLE);
69 VXGE_MODULE_PARAM_INT(addr_learn_en, VXGE_HW_MAC_ADDR_LEARN_DEFAULT);
70 VXGE_MODULE_PARAM_INT(max_config_port, VXGE_MAX_CONFIG_PORT);
71 VXGE_MODULE_PARAM_INT(max_config_vpath, VXGE_USE_DEFAULT);
72 VXGE_MODULE_PARAM_INT(max_mac_vpath, VXGE_MAX_MAC_ADDR_COUNT);
73 VXGE_MODULE_PARAM_INT(max_config_dev, VXGE_MAX_CONFIG_DEV);
75 static u16 vpath_selector[VXGE_HW_MAX_VIRTUAL_PATHS] =
76 {0, 1, 3, 3, 7, 7, 7, 7, 15, 15, 15, 15, 15, 15, 15, 15, 31};
77 static unsigned int bw_percentage[VXGE_HW_MAX_VIRTUAL_PATHS] =
78 {[0 ...(VXGE_HW_MAX_VIRTUAL_PATHS - 1)] = 0xFF};
79 module_param_array(bw_percentage, uint, NULL, 0);
81 static struct vxge_drv_config *driver_config;
83 static inline int is_vxge_card_up(struct vxgedev *vdev)
85 return test_bit(__VXGE_STATE_CARD_UP, &vdev->state);
88 static inline void VXGE_COMPLETE_VPATH_TX(struct vxge_fifo *fifo)
90 unsigned long flags = 0;
91 struct sk_buff **skb_ptr = NULL;
92 struct sk_buff **temp;
93 #define NR_SKB_COMPLETED 128
94 struct sk_buff *completed[NR_SKB_COMPLETED];
101 if (spin_trylock_irqsave(&fifo->tx_lock, flags)) {
102 vxge_hw_vpath_poll_tx(fifo->handle, &skb_ptr,
103 NR_SKB_COMPLETED, &more);
104 spin_unlock_irqrestore(&fifo->tx_lock, flags);
107 for (temp = completed; temp != skb_ptr; temp++)
108 dev_kfree_skb_irq(*temp);
112 static inline void VXGE_COMPLETE_ALL_TX(struct vxgedev *vdev)
116 /* Complete all transmits */
117 for (i = 0; i < vdev->no_of_vpath; i++)
118 VXGE_COMPLETE_VPATH_TX(&vdev->vpaths[i].fifo);
121 static inline void VXGE_COMPLETE_ALL_RX(struct vxgedev *vdev)
124 struct vxge_ring *ring;
126 /* Complete all receives*/
127 for (i = 0; i < vdev->no_of_vpath; i++) {
128 ring = &vdev->vpaths[i].ring;
129 vxge_hw_vpath_poll_rx(ring->handle);
134 * MultiQ manipulation helper functions
136 void vxge_stop_all_tx_queue(struct vxgedev *vdev)
139 struct net_device *dev = vdev->ndev;
141 if (vdev->config.tx_steering_type != TX_MULTIQ_STEERING) {
142 for (i = 0; i < vdev->no_of_vpath; i++)
143 vdev->vpaths[i].fifo.queue_state = VPATH_QUEUE_STOP;
145 netif_tx_stop_all_queues(dev);
148 void vxge_stop_tx_queue(struct vxge_fifo *fifo)
150 struct net_device *dev = fifo->ndev;
152 struct netdev_queue *txq = NULL;
153 if (fifo->tx_steering_type == TX_MULTIQ_STEERING)
154 txq = netdev_get_tx_queue(dev, fifo->driver_id);
156 txq = netdev_get_tx_queue(dev, 0);
157 fifo->queue_state = VPATH_QUEUE_STOP;
160 netif_tx_stop_queue(txq);
163 void vxge_start_all_tx_queue(struct vxgedev *vdev)
166 struct net_device *dev = vdev->ndev;
168 if (vdev->config.tx_steering_type != TX_MULTIQ_STEERING) {
169 for (i = 0; i < vdev->no_of_vpath; i++)
170 vdev->vpaths[i].fifo.queue_state = VPATH_QUEUE_START;
172 netif_tx_start_all_queues(dev);
175 static void vxge_wake_all_tx_queue(struct vxgedev *vdev)
178 struct net_device *dev = vdev->ndev;
180 if (vdev->config.tx_steering_type != TX_MULTIQ_STEERING) {
181 for (i = 0; i < vdev->no_of_vpath; i++)
182 vdev->vpaths[i].fifo.queue_state = VPATH_QUEUE_START;
184 netif_tx_wake_all_queues(dev);
187 void vxge_wake_tx_queue(struct vxge_fifo *fifo, struct sk_buff *skb)
189 struct net_device *dev = fifo->ndev;
191 int vpath_no = fifo->driver_id;
192 struct netdev_queue *txq = NULL;
193 if (fifo->tx_steering_type == TX_MULTIQ_STEERING) {
194 txq = netdev_get_tx_queue(dev, vpath_no);
195 if (netif_tx_queue_stopped(txq))
196 netif_tx_wake_queue(txq);
198 txq = netdev_get_tx_queue(dev, 0);
199 if (fifo->queue_state == VPATH_QUEUE_STOP)
200 if (netif_tx_queue_stopped(txq)) {
201 fifo->queue_state = VPATH_QUEUE_START;
202 netif_tx_wake_queue(txq);
208 * vxge_callback_link_up
210 * This function is called during interrupt context to notify link up state
214 vxge_callback_link_up(struct __vxge_hw_device *hldev)
216 struct net_device *dev = hldev->ndev;
217 struct vxgedev *vdev = (struct vxgedev *)netdev_priv(dev);
219 vxge_debug_entryexit(VXGE_TRACE, "%s: %s:%d",
220 vdev->ndev->name, __func__, __LINE__);
221 printk(KERN_NOTICE "%s: Link Up\n", vdev->ndev->name);
222 vdev->stats.link_up++;
224 netif_carrier_on(vdev->ndev);
225 vxge_wake_all_tx_queue(vdev);
227 vxge_debug_entryexit(VXGE_TRACE,
228 "%s: %s:%d Exiting...", vdev->ndev->name, __func__, __LINE__);
232 * vxge_callback_link_down
234 * This function is called during interrupt context to notify link down state
238 vxge_callback_link_down(struct __vxge_hw_device *hldev)
240 struct net_device *dev = hldev->ndev;
241 struct vxgedev *vdev = (struct vxgedev *)netdev_priv(dev);
243 vxge_debug_entryexit(VXGE_TRACE,
244 "%s: %s:%d", vdev->ndev->name, __func__, __LINE__);
245 printk(KERN_NOTICE "%s: Link Down\n", vdev->ndev->name);
247 vdev->stats.link_down++;
248 netif_carrier_off(vdev->ndev);
249 vxge_stop_all_tx_queue(vdev);
251 vxge_debug_entryexit(VXGE_TRACE,
252 "%s: %s:%d Exiting...", vdev->ndev->name, __func__, __LINE__);
260 static struct sk_buff*
261 vxge_rx_alloc(void *dtrh, struct vxge_ring *ring, const int skb_size)
263 struct net_device *dev;
265 struct vxge_rx_priv *rx_priv;
268 vxge_debug_entryexit(VXGE_TRACE, "%s: %s:%d",
269 ring->ndev->name, __func__, __LINE__);
271 rx_priv = vxge_hw_ring_rxd_private_get(dtrh);
273 /* try to allocate skb first. this one may fail */
274 skb = netdev_alloc_skb(dev, skb_size +
275 VXGE_HW_HEADER_ETHERNET_II_802_3_ALIGN);
277 vxge_debug_mem(VXGE_ERR,
278 "%s: out of memory to allocate SKB", dev->name);
279 ring->stats.skb_alloc_fail++;
283 vxge_debug_mem(VXGE_TRACE,
284 "%s: %s:%d Skb : 0x%p", ring->ndev->name,
285 __func__, __LINE__, skb);
287 skb_reserve(skb, VXGE_HW_HEADER_ETHERNET_II_802_3_ALIGN);
290 rx_priv->skb_data = NULL;
291 rx_priv->data_size = skb_size;
292 vxge_debug_entryexit(VXGE_TRACE,
293 "%s: %s:%d Exiting...", ring->ndev->name, __func__, __LINE__);
301 static int vxge_rx_map(void *dtrh, struct vxge_ring *ring)
303 struct vxge_rx_priv *rx_priv;
306 vxge_debug_entryexit(VXGE_TRACE, "%s: %s:%d",
307 ring->ndev->name, __func__, __LINE__);
308 rx_priv = vxge_hw_ring_rxd_private_get(dtrh);
310 rx_priv->skb_data = rx_priv->skb->data;
311 dma_addr = pci_map_single(ring->pdev, rx_priv->skb_data,
312 rx_priv->data_size, PCI_DMA_FROMDEVICE);
314 if (unlikely(pci_dma_mapping_error(ring->pdev, dma_addr))) {
315 ring->stats.pci_map_fail++;
318 vxge_debug_mem(VXGE_TRACE,
319 "%s: %s:%d 1 buffer mode dma_addr = 0x%llx",
320 ring->ndev->name, __func__, __LINE__,
321 (unsigned long long)dma_addr);
322 vxge_hw_ring_rxd_1b_set(dtrh, dma_addr, rx_priv->data_size);
324 rx_priv->data_dma = dma_addr;
325 vxge_debug_entryexit(VXGE_TRACE,
326 "%s: %s:%d Exiting...", ring->ndev->name, __func__, __LINE__);
332 * vxge_rx_initial_replenish
333 * Allocation of RxD as an initial replenish procedure.
335 static enum vxge_hw_status
336 vxge_rx_initial_replenish(void *dtrh, void *userdata)
338 struct vxge_ring *ring = (struct vxge_ring *)userdata;
339 struct vxge_rx_priv *rx_priv;
341 vxge_debug_entryexit(VXGE_TRACE, "%s: %s:%d",
342 ring->ndev->name, __func__, __LINE__);
343 if (vxge_rx_alloc(dtrh, ring,
344 VXGE_LL_MAX_FRAME_SIZE(ring->ndev)) == NULL)
347 if (vxge_rx_map(dtrh, ring)) {
348 rx_priv = vxge_hw_ring_rxd_private_get(dtrh);
349 dev_kfree_skb(rx_priv->skb);
353 vxge_debug_entryexit(VXGE_TRACE,
354 "%s: %s:%d Exiting...", ring->ndev->name, __func__, __LINE__);
360 vxge_rx_complete(struct vxge_ring *ring, struct sk_buff *skb, u16 vlan,
361 int pkt_length, struct vxge_hw_ring_rxd_info *ext_info)
364 vxge_debug_entryexit(VXGE_TRACE, "%s: %s:%d",
365 ring->ndev->name, __func__, __LINE__);
366 skb_record_rx_queue(skb, ring->driver_id);
367 skb->protocol = eth_type_trans(skb, ring->ndev);
369 ring->stats.rx_frms++;
370 ring->stats.rx_bytes += pkt_length;
372 if (skb->pkt_type == PACKET_MULTICAST)
373 ring->stats.rx_mcast++;
375 vxge_debug_rx(VXGE_TRACE,
376 "%s: %s:%d skb protocol = %d",
377 ring->ndev->name, __func__, __LINE__, skb->protocol);
379 if (ring->gro_enable) {
380 if (ring->vlgrp && ext_info->vlan &&
381 (ring->vlan_tag_strip ==
382 VXGE_HW_VPATH_RPA_STRIP_VLAN_TAG_ENABLE))
383 vlan_gro_receive(ring->napi_p, ring->vlgrp,
384 ext_info->vlan, skb);
386 napi_gro_receive(ring->napi_p, skb);
388 if (ring->vlgrp && vlan &&
389 (ring->vlan_tag_strip ==
390 VXGE_HW_VPATH_RPA_STRIP_VLAN_TAG_ENABLE))
391 vlan_hwaccel_receive_skb(skb, ring->vlgrp, vlan);
393 netif_receive_skb(skb);
395 vxge_debug_entryexit(VXGE_TRACE,
396 "%s: %s:%d Exiting...", ring->ndev->name, __func__, __LINE__);
399 static inline void vxge_re_pre_post(void *dtr, struct vxge_ring *ring,
400 struct vxge_rx_priv *rx_priv)
402 pci_dma_sync_single_for_device(ring->pdev,
403 rx_priv->data_dma, rx_priv->data_size, PCI_DMA_FROMDEVICE);
405 vxge_hw_ring_rxd_1b_set(dtr, rx_priv->data_dma, rx_priv->data_size);
406 vxge_hw_ring_rxd_pre_post(ring->handle, dtr);
409 static inline void vxge_post(int *dtr_cnt, void **first_dtr,
410 void *post_dtr, struct __vxge_hw_ring *ringh)
412 int dtr_count = *dtr_cnt;
413 if ((*dtr_cnt % VXGE_HW_RXSYNC_FREQ_CNT) == 0) {
415 vxge_hw_ring_rxd_post_post_wmb(ringh, *first_dtr);
416 *first_dtr = post_dtr;
418 vxge_hw_ring_rxd_post_post(ringh, post_dtr);
420 *dtr_cnt = dtr_count;
426 * If the interrupt is because of a received frame or if the receive ring
427 * contains fresh as yet un-processed frames, this function is called.
430 vxge_rx_1b_compl(struct __vxge_hw_ring *ringh, void *dtr,
431 u8 t_code, void *userdata)
433 struct vxge_ring *ring = (struct vxge_ring *)userdata;
434 struct net_device *dev = ring->ndev;
435 unsigned int dma_sizes;
436 void *first_dtr = NULL;
442 struct vxge_rx_priv *rx_priv;
443 struct vxge_hw_ring_rxd_info ext_info;
444 vxge_debug_entryexit(VXGE_TRACE, "%s: %s:%d",
445 ring->ndev->name, __func__, __LINE__);
446 ring->pkts_processed = 0;
448 vxge_hw_ring_replenish(ringh);
451 prefetch((char *)dtr + L1_CACHE_BYTES);
452 rx_priv = vxge_hw_ring_rxd_private_get(dtr);
454 data_size = rx_priv->data_size;
455 data_dma = rx_priv->data_dma;
456 prefetch(rx_priv->skb_data);
458 vxge_debug_rx(VXGE_TRACE,
459 "%s: %s:%d skb = 0x%p",
460 ring->ndev->name, __func__, __LINE__, skb);
462 vxge_hw_ring_rxd_1b_get(ringh, dtr, &dma_sizes);
463 pkt_length = dma_sizes;
465 pkt_length -= ETH_FCS_LEN;
467 vxge_debug_rx(VXGE_TRACE,
468 "%s: %s:%d Packet Length = %d",
469 ring->ndev->name, __func__, __LINE__, pkt_length);
471 vxge_hw_ring_rxd_1b_info_get(ringh, dtr, &ext_info);
473 /* check skb validity */
476 prefetch((char *)skb + L1_CACHE_BYTES);
477 if (unlikely(t_code)) {
479 if (vxge_hw_ring_handle_tcode(ringh, dtr, t_code) !=
482 ring->stats.rx_errors++;
483 vxge_debug_rx(VXGE_TRACE,
484 "%s: %s :%d Rx T_code is %d",
485 ring->ndev->name, __func__,
488 /* If the t_code is not supported and if the
489 * t_code is other than 0x5 (unparseable packet
490 * such as unknown UPV6 header), Drop it !!!
492 vxge_re_pre_post(dtr, ring, rx_priv);
494 vxge_post(&dtr_cnt, &first_dtr, dtr, ringh);
495 ring->stats.rx_dropped++;
500 if (pkt_length > VXGE_LL_RX_COPY_THRESHOLD) {
502 if (vxge_rx_alloc(dtr, ring, data_size) != NULL) {
504 if (!vxge_rx_map(dtr, ring)) {
505 skb_put(skb, pkt_length);
507 pci_unmap_single(ring->pdev, data_dma,
508 data_size, PCI_DMA_FROMDEVICE);
510 vxge_hw_ring_rxd_pre_post(ringh, dtr);
511 vxge_post(&dtr_cnt, &first_dtr, dtr,
514 dev_kfree_skb(rx_priv->skb);
516 rx_priv->data_size = data_size;
517 vxge_re_pre_post(dtr, ring, rx_priv);
519 vxge_post(&dtr_cnt, &first_dtr, dtr,
521 ring->stats.rx_dropped++;
525 vxge_re_pre_post(dtr, ring, rx_priv);
527 vxge_post(&dtr_cnt, &first_dtr, dtr, ringh);
528 ring->stats.rx_dropped++;
532 struct sk_buff *skb_up;
534 skb_up = netdev_alloc_skb(dev, pkt_length +
535 VXGE_HW_HEADER_ETHERNET_II_802_3_ALIGN);
536 if (skb_up != NULL) {
538 VXGE_HW_HEADER_ETHERNET_II_802_3_ALIGN);
540 pci_dma_sync_single_for_cpu(ring->pdev,
544 vxge_debug_mem(VXGE_TRACE,
545 "%s: %s:%d skb_up = %p",
546 ring->ndev->name, __func__,
548 memcpy(skb_up->data, skb->data, pkt_length);
550 vxge_re_pre_post(dtr, ring, rx_priv);
552 vxge_post(&dtr_cnt, &first_dtr, dtr,
554 /* will netif_rx small SKB instead */
556 skb_put(skb, pkt_length);
558 vxge_re_pre_post(dtr, ring, rx_priv);
560 vxge_post(&dtr_cnt, &first_dtr, dtr, ringh);
561 vxge_debug_rx(VXGE_ERR,
562 "%s: vxge_rx_1b_compl: out of "
563 "memory", dev->name);
564 ring->stats.skb_alloc_fail++;
569 if ((ext_info.proto & VXGE_HW_FRAME_PROTO_TCP_OR_UDP) &&
570 !(ext_info.proto & VXGE_HW_FRAME_PROTO_IP_FRAG) &&
571 ring->rx_csum && /* Offload Rx side CSUM */
572 ext_info.l3_cksum == VXGE_HW_L3_CKSUM_OK &&
573 ext_info.l4_cksum == VXGE_HW_L4_CKSUM_OK)
574 skb->ip_summed = CHECKSUM_UNNECESSARY;
576 skb->ip_summed = CHECKSUM_NONE;
578 vxge_rx_complete(ring, skb, ext_info.vlan,
579 pkt_length, &ext_info);
582 ring->pkts_processed++;
586 } while (vxge_hw_ring_rxd_next_completed(ringh, &dtr,
587 &t_code) == VXGE_HW_OK);
590 vxge_hw_ring_rxd_post_post_wmb(ringh, first_dtr);
592 vxge_debug_entryexit(VXGE_TRACE,
601 * If an interrupt was raised to indicate DMA complete of the Tx packet,
602 * this function is called. It identifies the last TxD whose buffer was
603 * freed and frees all skbs whose data have already DMA'ed into the NICs
607 vxge_xmit_compl(struct __vxge_hw_fifo *fifo_hw, void *dtr,
608 enum vxge_hw_fifo_tcode t_code, void *userdata,
609 struct sk_buff ***skb_ptr, int nr_skb, int *more)
611 struct vxge_fifo *fifo = (struct vxge_fifo *)userdata;
612 struct sk_buff *skb, **done_skb = *skb_ptr;
615 vxge_debug_entryexit(VXGE_TRACE,
616 "%s:%d Entered....", __func__, __LINE__);
622 struct vxge_tx_priv *txd_priv =
623 vxge_hw_fifo_txdl_private_get(dtr);
626 frg_cnt = skb_shinfo(skb)->nr_frags;
627 frag = &skb_shinfo(skb)->frags[0];
629 vxge_debug_tx(VXGE_TRACE,
630 "%s: %s:%d fifo_hw = %p dtr = %p "
631 "tcode = 0x%x", fifo->ndev->name, __func__,
632 __LINE__, fifo_hw, dtr, t_code);
633 /* check skb validity */
635 vxge_debug_tx(VXGE_TRACE,
636 "%s: %s:%d skb = %p itxd_priv = %p frg_cnt = %d",
637 fifo->ndev->name, __func__, __LINE__,
638 skb, txd_priv, frg_cnt);
639 if (unlikely(t_code)) {
640 fifo->stats.tx_errors++;
641 vxge_debug_tx(VXGE_ERR,
642 "%s: tx: dtr %p completed due to "
643 "error t_code %01x", fifo->ndev->name,
645 vxge_hw_fifo_handle_tcode(fifo_hw, dtr, t_code);
648 /* for unfragmented skb */
649 pci_unmap_single(fifo->pdev, txd_priv->dma_buffers[i++],
650 skb_headlen(skb), PCI_DMA_TODEVICE);
652 for (j = 0; j < frg_cnt; j++) {
653 pci_unmap_page(fifo->pdev,
654 txd_priv->dma_buffers[i++],
655 frag->size, PCI_DMA_TODEVICE);
659 vxge_hw_fifo_txdl_free(fifo_hw, dtr);
661 /* Updating the statistics block */
662 fifo->stats.tx_frms++;
663 fifo->stats.tx_bytes += skb->len;
673 if (pkt_cnt > fifo->indicate_max_pkts)
676 } while (vxge_hw_fifo_txdl_next_completed(fifo_hw,
677 &dtr, &t_code) == VXGE_HW_OK);
680 vxge_wake_tx_queue(fifo, skb);
682 vxge_debug_entryexit(VXGE_TRACE,
683 "%s: %s:%d Exiting...",
684 fifo->ndev->name, __func__, __LINE__);
688 /* select a vpath to transmit the packet */
689 static u32 vxge_get_vpath_no(struct vxgedev *vdev, struct sk_buff *skb,
692 u16 queue_len, counter = 0;
693 if (skb->protocol == htons(ETH_P_IP)) {
699 if ((ip->frag_off & htons(IP_OFFSET|IP_MF)) == 0) {
700 th = (struct tcphdr *)(((unsigned char *)ip) +
703 queue_len = vdev->no_of_vpath;
704 counter = (ntohs(th->source) +
706 vdev->vpath_selector[queue_len - 1];
707 if (counter >= queue_len)
708 counter = queue_len - 1;
710 if (ip->protocol == IPPROTO_UDP) {
720 static enum vxge_hw_status vxge_search_mac_addr_in_list(
721 struct vxge_vpath *vpath, u64 del_mac)
723 struct list_head *entry, *next;
724 list_for_each_safe(entry, next, &vpath->mac_addr_list) {
725 if (((struct vxge_mac_addrs *)entry)->macaddr == del_mac)
731 static int vxge_learn_mac(struct vxgedev *vdev, u8 *mac_header)
733 struct macInfo mac_info;
734 u8 *mac_address = NULL;
735 u64 mac_addr = 0, vpath_vector = 0;
737 enum vxge_hw_status status = VXGE_HW_OK;
738 struct vxge_vpath *vpath = NULL;
739 struct __vxge_hw_device *hldev;
741 hldev = (struct __vxge_hw_device *) pci_get_drvdata(vdev->pdev);
743 mac_address = (u8 *)&mac_addr;
744 memcpy(mac_address, mac_header, ETH_ALEN);
746 /* Is this mac address already in the list? */
747 for (vpath_idx = 0; vpath_idx < vdev->no_of_vpath; vpath_idx++) {
748 vpath = &vdev->vpaths[vpath_idx];
749 if (vxge_search_mac_addr_in_list(vpath, mac_addr))
753 memset(&mac_info, 0, sizeof(struct macInfo));
754 memcpy(mac_info.macaddr, mac_header, ETH_ALEN);
756 /* Any vpath has room to add mac address to its da table? */
757 for (vpath_idx = 0; vpath_idx < vdev->no_of_vpath; vpath_idx++) {
758 vpath = &vdev->vpaths[vpath_idx];
759 if (vpath->mac_addr_cnt < vpath->max_mac_addr_cnt) {
760 /* Add this mac address to this vpath */
761 mac_info.vpath_no = vpath_idx;
762 mac_info.state = VXGE_LL_MAC_ADDR_IN_DA_TABLE;
763 status = vxge_add_mac_addr(vdev, &mac_info);
764 if (status != VXGE_HW_OK)
770 mac_info.state = VXGE_LL_MAC_ADDR_IN_LIST;
772 mac_info.vpath_no = vpath_idx;
773 /* Is the first vpath already selected as catch-basin ? */
774 vpath = &vdev->vpaths[vpath_idx];
775 if (vpath->mac_addr_cnt > vpath->max_mac_addr_cnt) {
776 /* Add this mac address to this vpath */
777 if (FALSE == vxge_mac_list_add(vpath, &mac_info))
782 /* Select first vpath as catch-basin */
783 vpath_vector = vxge_mBIT(vpath->device_id);
784 status = vxge_hw_mgmt_reg_write(vpath->vdev->devh,
785 vxge_hw_mgmt_reg_type_mrpcim,
788 struct vxge_hw_mrpcim_reg,
791 if (status != VXGE_HW_OK) {
792 vxge_debug_tx(VXGE_ERR,
793 "%s: Unable to set the vpath-%d in catch-basin mode",
794 VXGE_DRIVER_NAME, vpath->device_id);
798 if (FALSE == vxge_mac_list_add(vpath, &mac_info))
806 * @skb : the socket buffer containing the Tx data.
807 * @dev : device pointer.
809 * This function is the Tx entry point of the driver. Neterion NIC supports
810 * certain protocol assist features on Tx side, namely CSO, S/G, LSO.
811 * NOTE: when device cant queue the pkt, just the trans_start variable will
815 vxge_xmit(struct sk_buff *skb, struct net_device *dev)
817 struct vxge_fifo *fifo = NULL;
820 struct vxgedev *vdev = NULL;
821 enum vxge_hw_status status;
822 int frg_cnt, first_frg_len;
824 int i = 0, j = 0, avail;
826 struct vxge_tx_priv *txdl_priv = NULL;
827 struct __vxge_hw_fifo *fifo_hw;
829 unsigned long flags = 0;
831 int do_spin_tx_lock = 1;
833 vxge_debug_entryexit(VXGE_TRACE, "%s: %s:%d",
834 dev->name, __func__, __LINE__);
836 /* A buffer with no data will be dropped */
837 if (unlikely(skb->len <= 0)) {
838 vxge_debug_tx(VXGE_ERR,
839 "%s: Buffer has no data..", dev->name);
844 vdev = (struct vxgedev *)netdev_priv(dev);
846 if (unlikely(!is_vxge_card_up(vdev))) {
847 vxge_debug_tx(VXGE_ERR,
848 "%s: vdev not initialized", dev->name);
853 if (vdev->config.addr_learn_en) {
854 vpath_no = vxge_learn_mac(vdev, skb->data + ETH_ALEN);
855 if (vpath_no == -EPERM) {
856 vxge_debug_tx(VXGE_ERR,
857 "%s: Failed to store the mac address",
864 if (vdev->config.tx_steering_type == TX_MULTIQ_STEERING)
865 vpath_no = skb_get_queue_mapping(skb);
866 else if (vdev->config.tx_steering_type == TX_PORT_STEERING)
867 vpath_no = vxge_get_vpath_no(vdev, skb, &do_spin_tx_lock);
869 vxge_debug_tx(VXGE_TRACE, "%s: vpath_no= %d", dev->name, vpath_no);
871 if (vpath_no >= vdev->no_of_vpath)
874 fifo = &vdev->vpaths[vpath_no].fifo;
875 fifo_hw = fifo->handle;
878 spin_lock_irqsave(&fifo->tx_lock, flags);
880 if (unlikely(!spin_trylock_irqsave(&fifo->tx_lock, flags)))
881 return NETDEV_TX_LOCKED;
884 if (vdev->config.tx_steering_type == TX_MULTIQ_STEERING) {
885 if (netif_subqueue_stopped(dev, skb)) {
886 spin_unlock_irqrestore(&fifo->tx_lock, flags);
887 return NETDEV_TX_BUSY;
889 } else if (unlikely(fifo->queue_state == VPATH_QUEUE_STOP)) {
890 if (netif_queue_stopped(dev)) {
891 spin_unlock_irqrestore(&fifo->tx_lock, flags);
892 return NETDEV_TX_BUSY;
895 avail = vxge_hw_fifo_free_txdl_count_get(fifo_hw);
897 vxge_debug_tx(VXGE_ERR,
898 "%s: No free TXDs available", dev->name);
899 fifo->stats.txd_not_free++;
900 vxge_stop_tx_queue(fifo);
904 /* Last TXD? Stop tx queue to avoid dropping packets. TX
905 * completion will resume the queue.
908 vxge_stop_tx_queue(fifo);
910 status = vxge_hw_fifo_txdl_reserve(fifo_hw, &dtr, &dtr_priv);
911 if (unlikely(status != VXGE_HW_OK)) {
912 vxge_debug_tx(VXGE_ERR,
913 "%s: Out of descriptors .", dev->name);
914 fifo->stats.txd_out_of_desc++;
915 vxge_stop_tx_queue(fifo);
919 vxge_debug_tx(VXGE_TRACE,
920 "%s: %s:%d fifo_hw = %p dtr = %p dtr_priv = %p",
921 dev->name, __func__, __LINE__,
922 fifo_hw, dtr, dtr_priv);
924 if (vdev->vlgrp && vlan_tx_tag_present(skb)) {
925 u16 vlan_tag = vlan_tx_tag_get(skb);
926 vxge_hw_fifo_txdl_vlan_set(dtr, vlan_tag);
929 first_frg_len = skb_headlen(skb);
931 dma_pointer = pci_map_single(fifo->pdev, skb->data, first_frg_len,
934 if (unlikely(pci_dma_mapping_error(fifo->pdev, dma_pointer))) {
935 vxge_hw_fifo_txdl_free(fifo_hw, dtr);
936 vxge_stop_tx_queue(fifo);
937 fifo->stats.pci_map_fail++;
941 txdl_priv = vxge_hw_fifo_txdl_private_get(dtr);
942 txdl_priv->skb = skb;
943 txdl_priv->dma_buffers[j] = dma_pointer;
945 frg_cnt = skb_shinfo(skb)->nr_frags;
946 vxge_debug_tx(VXGE_TRACE,
947 "%s: %s:%d skb = %p txdl_priv = %p "
948 "frag_cnt = %d dma_pointer = 0x%llx", dev->name,
949 __func__, __LINE__, skb, txdl_priv,
950 frg_cnt, (unsigned long long)dma_pointer);
952 vxge_hw_fifo_txdl_buffer_set(fifo_hw, dtr, j++, dma_pointer,
955 frag = &skb_shinfo(skb)->frags[0];
956 for (i = 0; i < frg_cnt; i++) {
957 /* ignore 0 length fragment */
962 (u64)pci_map_page(fifo->pdev, frag->page,
963 frag->page_offset, frag->size,
966 if (unlikely(pci_dma_mapping_error(fifo->pdev, dma_pointer)))
968 vxge_debug_tx(VXGE_TRACE,
969 "%s: %s:%d frag = %d dma_pointer = 0x%llx",
970 dev->name, __func__, __LINE__, i,
971 (unsigned long long)dma_pointer);
973 txdl_priv->dma_buffers[j] = dma_pointer;
974 vxge_hw_fifo_txdl_buffer_set(fifo_hw, dtr, j++, dma_pointer,
979 offload_type = vxge_offload_type(skb);
981 if (offload_type & (SKB_GSO_TCPV4 | SKB_GSO_TCPV6)) {
983 int mss = vxge_tcp_mss(skb);
985 vxge_debug_tx(VXGE_TRACE,
986 "%s: %s:%d mss = %d",
987 dev->name, __func__, __LINE__, mss);
988 vxge_hw_fifo_txdl_mss_set(dtr, mss);
990 vxge_assert(skb->len <=
991 dev->mtu + VXGE_HW_MAC_HEADER_MAX_SIZE);
997 if (skb->ip_summed == CHECKSUM_PARTIAL)
998 vxge_hw_fifo_txdl_cksum_set_bits(dtr,
999 VXGE_HW_FIFO_TXD_TX_CKO_IPV4_EN |
1000 VXGE_HW_FIFO_TXD_TX_CKO_TCP_EN |
1001 VXGE_HW_FIFO_TXD_TX_CKO_UDP_EN);
1003 vxge_hw_fifo_txdl_post(fifo_hw, dtr);
1005 dev->trans_start = jiffies; /* NETIF_F_LLTX driver :( */
1007 spin_unlock_irqrestore(&fifo->tx_lock, flags);
1009 VXGE_COMPLETE_VPATH_TX(fifo);
1010 vxge_debug_entryexit(VXGE_TRACE, "%s: %s:%d Exiting...",
1011 dev->name, __func__, __LINE__);
1012 return NETDEV_TX_OK;
1015 vxge_debug_tx(VXGE_TRACE, "%s: pci_map_page failed", dev->name);
1019 frag = &skb_shinfo(skb)->frags[0];
1021 pci_unmap_single(fifo->pdev, txdl_priv->dma_buffers[j++],
1022 skb_headlen(skb), PCI_DMA_TODEVICE);
1024 for (; j < i; j++) {
1025 pci_unmap_page(fifo->pdev, txdl_priv->dma_buffers[j],
1026 frag->size, PCI_DMA_TODEVICE);
1030 vxge_hw_fifo_txdl_free(fifo_hw, dtr);
1033 spin_unlock_irqrestore(&fifo->tx_lock, flags);
1034 VXGE_COMPLETE_VPATH_TX(fifo);
1036 return NETDEV_TX_OK;
1042 * Function will be called by hw function to abort all outstanding receive
1046 vxge_rx_term(void *dtrh, enum vxge_hw_rxd_state state, void *userdata)
1048 struct vxge_ring *ring = (struct vxge_ring *)userdata;
1049 struct vxge_rx_priv *rx_priv =
1050 vxge_hw_ring_rxd_private_get(dtrh);
1052 vxge_debug_entryexit(VXGE_TRACE, "%s: %s:%d",
1053 ring->ndev->name, __func__, __LINE__);
1054 if (state != VXGE_HW_RXD_STATE_POSTED)
1057 pci_unmap_single(ring->pdev, rx_priv->data_dma,
1058 rx_priv->data_size, PCI_DMA_FROMDEVICE);
1060 dev_kfree_skb(rx_priv->skb);
1061 rx_priv->skb_data = NULL;
1063 vxge_debug_entryexit(VXGE_TRACE,
1064 "%s: %s:%d Exiting...",
1065 ring->ndev->name, __func__, __LINE__);
1071 * Function will be called to abort all outstanding tx descriptors
1074 vxge_tx_term(void *dtrh, enum vxge_hw_txdl_state state, void *userdata)
1076 struct vxge_fifo *fifo = (struct vxge_fifo *)userdata;
1078 int i = 0, j, frg_cnt;
1079 struct vxge_tx_priv *txd_priv = vxge_hw_fifo_txdl_private_get(dtrh);
1080 struct sk_buff *skb = txd_priv->skb;
1082 vxge_debug_entryexit(VXGE_TRACE, "%s:%d", __func__, __LINE__);
1084 if (state != VXGE_HW_TXDL_STATE_POSTED)
1087 /* check skb validity */
1089 frg_cnt = skb_shinfo(skb)->nr_frags;
1090 frag = &skb_shinfo(skb)->frags[0];
1092 /* for unfragmented skb */
1093 pci_unmap_single(fifo->pdev, txd_priv->dma_buffers[i++],
1094 skb_headlen(skb), PCI_DMA_TODEVICE);
1096 for (j = 0; j < frg_cnt; j++) {
1097 pci_unmap_page(fifo->pdev, txd_priv->dma_buffers[i++],
1098 frag->size, PCI_DMA_TODEVICE);
1104 vxge_debug_entryexit(VXGE_TRACE,
1105 "%s:%d Exiting...", __func__, __LINE__);
1109 * vxge_set_multicast
1110 * @dev: pointer to the device structure
1112 * Entry point for multicast address enable/disable
1113 * This function is a driver entry point which gets called by the kernel
1114 * whenever multicast addresses must be enabled/disabled. This also gets
1115 * called to set/reset promiscuous mode. Depending on the deivce flag, we
1116 * determine, if multicast address must be enabled or if promiscuous mode
1117 * is to be disabled etc.
1119 static void vxge_set_multicast(struct net_device *dev)
1121 struct netdev_hw_addr *ha;
1122 struct vxgedev *vdev;
1123 int i, mcast_cnt = 0;
1124 struct __vxge_hw_device *hldev;
1125 enum vxge_hw_status status = VXGE_HW_OK;
1126 struct macInfo mac_info;
1128 struct vxge_mac_addrs *mac_entry;
1129 struct list_head *list_head;
1130 struct list_head *entry, *next;
1131 u8 *mac_address = NULL;
1133 vxge_debug_entryexit(VXGE_TRACE,
1134 "%s:%d", __func__, __LINE__);
1136 vdev = (struct vxgedev *)netdev_priv(dev);
1137 hldev = (struct __vxge_hw_device *)vdev->devh;
1139 if (unlikely(!is_vxge_card_up(vdev)))
1142 if ((dev->flags & IFF_ALLMULTI) && (!vdev->all_multi_flg)) {
1143 for (i = 0; i < vdev->no_of_vpath; i++) {
1144 vxge_assert(vdev->vpaths[i].is_open);
1145 status = vxge_hw_vpath_mcast_enable(
1146 vdev->vpaths[i].handle);
1147 vdev->all_multi_flg = 1;
1149 } else if ((dev->flags & IFF_ALLMULTI) && (vdev->all_multi_flg)) {
1150 for (i = 0; i < vdev->no_of_vpath; i++) {
1151 vxge_assert(vdev->vpaths[i].is_open);
1152 status = vxge_hw_vpath_mcast_disable(
1153 vdev->vpaths[i].handle);
1154 vdev->all_multi_flg = 1;
1158 if (status != VXGE_HW_OK)
1159 vxge_debug_init(VXGE_ERR,
1160 "failed to %s multicast, status %d",
1161 dev->flags & IFF_ALLMULTI ?
1162 "enable" : "disable", status);
1164 if (!vdev->config.addr_learn_en) {
1165 if (dev->flags & IFF_PROMISC) {
1166 for (i = 0; i < vdev->no_of_vpath; i++) {
1167 vxge_assert(vdev->vpaths[i].is_open);
1168 status = vxge_hw_vpath_promisc_enable(
1169 vdev->vpaths[i].handle);
1172 for (i = 0; i < vdev->no_of_vpath; i++) {
1173 vxge_assert(vdev->vpaths[i].is_open);
1174 status = vxge_hw_vpath_promisc_disable(
1175 vdev->vpaths[i].handle);
1180 memset(&mac_info, 0, sizeof(struct macInfo));
1181 /* Update individual M_CAST address list */
1182 if ((!vdev->all_multi_flg) && netdev_mc_count(dev)) {
1184 mcast_cnt = vdev->vpaths[0].mcast_addr_cnt;
1185 list_head = &vdev->vpaths[0].mac_addr_list;
1186 if ((netdev_mc_count(dev) +
1187 (vdev->vpaths[0].mac_addr_cnt - mcast_cnt)) >
1188 vdev->vpaths[0].max_mac_addr_cnt)
1189 goto _set_all_mcast;
1191 /* Delete previous MC's */
1192 for (i = 0; i < mcast_cnt; i++) {
1193 if (!list_empty(list_head))
1194 mac_entry = (struct vxge_mac_addrs *)
1195 list_first_entry(list_head,
1196 struct vxge_mac_addrs,
1199 list_for_each_safe(entry, next, list_head) {
1201 mac_entry = (struct vxge_mac_addrs *) entry;
1202 /* Copy the mac address to delete */
1203 mac_address = (u8 *)&mac_entry->macaddr;
1204 memcpy(mac_info.macaddr, mac_address, ETH_ALEN);
1206 /* Is this a multicast address */
1207 if (0x01 & mac_info.macaddr[0]) {
1208 for (vpath_idx = 0; vpath_idx <
1211 mac_info.vpath_no = vpath_idx;
1212 status = vxge_del_mac_addr(
1221 netdev_for_each_mc_addr(ha, dev) {
1222 memcpy(mac_info.macaddr, ha->addr, ETH_ALEN);
1223 for (vpath_idx = 0; vpath_idx < vdev->no_of_vpath;
1225 mac_info.vpath_no = vpath_idx;
1226 mac_info.state = VXGE_LL_MAC_ADDR_IN_DA_TABLE;
1227 status = vxge_add_mac_addr(vdev, &mac_info);
1228 if (status != VXGE_HW_OK) {
1229 vxge_debug_init(VXGE_ERR,
1230 "%s:%d Setting individual"
1231 "multicast address failed",
1232 __func__, __LINE__);
1233 goto _set_all_mcast;
1240 mcast_cnt = vdev->vpaths[0].mcast_addr_cnt;
1241 /* Delete previous MC's */
1242 for (i = 0; i < mcast_cnt; i++) {
1244 list_for_each_safe(entry, next, list_head) {
1246 mac_entry = (struct vxge_mac_addrs *) entry;
1247 /* Copy the mac address to delete */
1248 mac_address = (u8 *)&mac_entry->macaddr;
1249 memcpy(mac_info.macaddr, mac_address, ETH_ALEN);
1251 /* Is this a multicast address */
1252 if (0x01 & mac_info.macaddr[0])
1256 for (vpath_idx = 0; vpath_idx < vdev->no_of_vpath;
1258 mac_info.vpath_no = vpath_idx;
1259 status = vxge_del_mac_addr(vdev, &mac_info);
1263 /* Enable all multicast */
1264 for (i = 0; i < vdev->no_of_vpath; i++) {
1265 vxge_assert(vdev->vpaths[i].is_open);
1266 status = vxge_hw_vpath_mcast_enable(
1267 vdev->vpaths[i].handle);
1268 if (status != VXGE_HW_OK) {
1269 vxge_debug_init(VXGE_ERR,
1270 "%s:%d Enabling all multicasts failed",
1271 __func__, __LINE__);
1273 vdev->all_multi_flg = 1;
1275 dev->flags |= IFF_ALLMULTI;
1278 vxge_debug_entryexit(VXGE_TRACE,
1279 "%s:%d Exiting...", __func__, __LINE__);
1284 * @dev: pointer to the device structure
1286 * Update entry "0" (default MAC addr)
1288 static int vxge_set_mac_addr(struct net_device *dev, void *p)
1290 struct sockaddr *addr = p;
1291 struct vxgedev *vdev;
1292 struct __vxge_hw_device *hldev;
1293 enum vxge_hw_status status = VXGE_HW_OK;
1294 struct macInfo mac_info_new, mac_info_old;
1297 vxge_debug_entryexit(VXGE_TRACE, "%s:%d", __func__, __LINE__);
1299 vdev = (struct vxgedev *)netdev_priv(dev);
1302 if (!is_valid_ether_addr(addr->sa_data))
1305 memset(&mac_info_new, 0, sizeof(struct macInfo));
1306 memset(&mac_info_old, 0, sizeof(struct macInfo));
1308 vxge_debug_entryexit(VXGE_TRACE, "%s:%d Exiting...",
1309 __func__, __LINE__);
1311 /* Get the old address */
1312 memcpy(mac_info_old.macaddr, dev->dev_addr, dev->addr_len);
1314 /* Copy the new address */
1315 memcpy(mac_info_new.macaddr, addr->sa_data, dev->addr_len);
1317 /* First delete the old mac address from all the vpaths
1318 as we can't specify the index while adding new mac address */
1319 for (vpath_idx = 0; vpath_idx < vdev->no_of_vpath; vpath_idx++) {
1320 struct vxge_vpath *vpath = &vdev->vpaths[vpath_idx];
1321 if (!vpath->is_open) {
1322 /* This can happen when this interface is added/removed
1323 to the bonding interface. Delete this station address
1324 from the linked list */
1325 vxge_mac_list_del(vpath, &mac_info_old);
1327 /* Add this new address to the linked list
1328 for later restoring */
1329 vxge_mac_list_add(vpath, &mac_info_new);
1333 /* Delete the station address */
1334 mac_info_old.vpath_no = vpath_idx;
1335 status = vxge_del_mac_addr(vdev, &mac_info_old);
1338 if (unlikely(!is_vxge_card_up(vdev))) {
1339 memcpy(dev->dev_addr, addr->sa_data, dev->addr_len);
1343 /* Set this mac address to all the vpaths */
1344 for (vpath_idx = 0; vpath_idx < vdev->no_of_vpath; vpath_idx++) {
1345 mac_info_new.vpath_no = vpath_idx;
1346 mac_info_new.state = VXGE_LL_MAC_ADDR_IN_DA_TABLE;
1347 status = vxge_add_mac_addr(vdev, &mac_info_new);
1348 if (status != VXGE_HW_OK)
1352 memcpy(dev->dev_addr, addr->sa_data, dev->addr_len);
1358 * vxge_vpath_intr_enable
1359 * @vdev: pointer to vdev
1360 * @vp_id: vpath for which to enable the interrupts
1362 * Enables the interrupts for the vpath
1364 void vxge_vpath_intr_enable(struct vxgedev *vdev, int vp_id)
1366 struct vxge_vpath *vpath = &vdev->vpaths[vp_id];
1368 int tim_msix_id[4] = {0, 1, 0, 0};
1369 int alarm_msix_id = VXGE_ALARM_MSIX_ID;
1371 vxge_hw_vpath_intr_enable(vpath->handle);
1373 if (vdev->config.intr_type == INTA)
1374 vxge_hw_vpath_inta_unmask_tx_rx(vpath->handle);
1376 vxge_hw_vpath_msix_set(vpath->handle, tim_msix_id,
1379 msix_id = vpath->device_id * VXGE_HW_VPATH_MSIX_ACTIVE;
1380 vxge_hw_vpath_msix_unmask(vpath->handle, msix_id);
1381 vxge_hw_vpath_msix_unmask(vpath->handle, msix_id + 1);
1383 /* enable the alarm vector */
1384 msix_id = (vpath->handle->vpath->hldev->first_vp_id *
1385 VXGE_HW_VPATH_MSIX_ACTIVE) + alarm_msix_id;
1386 vxge_hw_vpath_msix_unmask(vpath->handle, msix_id);
1391 * vxge_vpath_intr_disable
1392 * @vdev: pointer to vdev
1393 * @vp_id: vpath for which to disable the interrupts
1395 * Disables the interrupts for the vpath
1397 void vxge_vpath_intr_disable(struct vxgedev *vdev, int vp_id)
1399 struct vxge_vpath *vpath = &vdev->vpaths[vp_id];
1402 vxge_hw_vpath_intr_disable(vpath->handle);
1404 if (vdev->config.intr_type == INTA)
1405 vxge_hw_vpath_inta_mask_tx_rx(vpath->handle);
1407 msix_id = vpath->device_id * VXGE_HW_VPATH_MSIX_ACTIVE;
1408 vxge_hw_vpath_msix_mask(vpath->handle, msix_id);
1409 vxge_hw_vpath_msix_mask(vpath->handle, msix_id + 1);
1411 /* disable the alarm vector */
1412 msix_id = (vpath->handle->vpath->hldev->first_vp_id *
1413 VXGE_HW_VPATH_MSIX_ACTIVE) + VXGE_ALARM_MSIX_ID;
1414 vxge_hw_vpath_msix_mask(vpath->handle, msix_id);
1420 * @vdev: pointer to vdev
1421 * @vp_id: vpath to reset
1425 static int vxge_reset_vpath(struct vxgedev *vdev, int vp_id)
1427 enum vxge_hw_status status = VXGE_HW_OK;
1430 /* check if device is down already */
1431 if (unlikely(!is_vxge_card_up(vdev)))
1434 /* is device reset already scheduled */
1435 if (test_bit(__VXGE_STATE_RESET_CARD, &vdev->state))
1438 if (vdev->vpaths[vp_id].handle) {
1439 if (vxge_hw_vpath_reset(vdev->vpaths[vp_id].handle)
1441 if (is_vxge_card_up(vdev) &&
1442 vxge_hw_vpath_recover_from_reset(
1443 vdev->vpaths[vp_id].handle)
1445 vxge_debug_init(VXGE_ERR,
1446 "vxge_hw_vpath_recover_from_reset"
1447 "failed for vpath:%d", vp_id);
1451 vxge_debug_init(VXGE_ERR,
1452 "vxge_hw_vpath_reset failed for"
1457 return VXGE_HW_FAIL;
1459 vxge_restore_vpath_mac_addr(&vdev->vpaths[vp_id]);
1460 vxge_restore_vpath_vid_table(&vdev->vpaths[vp_id]);
1462 /* Enable all broadcast */
1463 vxge_hw_vpath_bcast_enable(vdev->vpaths[vp_id].handle);
1465 /* Enable the interrupts */
1466 vxge_vpath_intr_enable(vdev, vp_id);
1470 /* Enable the flow of traffic through the vpath */
1471 vxge_hw_vpath_enable(vdev->vpaths[vp_id].handle);
1474 vxge_hw_vpath_rx_doorbell_init(vdev->vpaths[vp_id].handle);
1475 vdev->vpaths[vp_id].ring.last_status = VXGE_HW_OK;
1477 /* Vpath reset done */
1478 clear_bit(vp_id, &vdev->vp_reset);
1480 /* Start the vpath queue */
1481 vxge_wake_tx_queue(&vdev->vpaths[vp_id].fifo, NULL);
1486 static int do_vxge_reset(struct vxgedev *vdev, int event)
1488 enum vxge_hw_status status;
1489 int ret = 0, vp_id, i;
1491 vxge_debug_entryexit(VXGE_TRACE, "%s:%d", __func__, __LINE__);
1493 if ((event == VXGE_LL_FULL_RESET) || (event == VXGE_LL_START_RESET)) {
1494 /* check if device is down already */
1495 if (unlikely(!is_vxge_card_up(vdev)))
1498 /* is reset already scheduled */
1499 if (test_and_set_bit(__VXGE_STATE_RESET_CARD, &vdev->state))
1503 if (event == VXGE_LL_FULL_RESET) {
1504 /* wait for all the vpath reset to complete */
1505 for (vp_id = 0; vp_id < vdev->no_of_vpath; vp_id++) {
1506 while (test_bit(vp_id, &vdev->vp_reset))
1510 /* if execution mode is set to debug, don't reset the adapter */
1511 if (unlikely(vdev->exec_mode)) {
1512 vxge_debug_init(VXGE_ERR,
1513 "%s: execution mode is debug, returning..",
1515 clear_bit(__VXGE_STATE_CARD_UP, &vdev->state);
1516 vxge_stop_all_tx_queue(vdev);
1521 if (event == VXGE_LL_FULL_RESET) {
1522 vxge_hw_device_intr_disable(vdev->devh);
1524 switch (vdev->cric_err_event) {
1525 case VXGE_HW_EVENT_UNKNOWN:
1526 vxge_stop_all_tx_queue(vdev);
1527 vxge_debug_init(VXGE_ERR,
1528 "fatal: %s: Disabling device due to"
1533 case VXGE_HW_EVENT_RESET_START:
1535 case VXGE_HW_EVENT_RESET_COMPLETE:
1536 case VXGE_HW_EVENT_LINK_DOWN:
1537 case VXGE_HW_EVENT_LINK_UP:
1538 case VXGE_HW_EVENT_ALARM_CLEARED:
1539 case VXGE_HW_EVENT_ECCERR:
1540 case VXGE_HW_EVENT_MRPCIM_ECCERR:
1543 case VXGE_HW_EVENT_FIFO_ERR:
1544 case VXGE_HW_EVENT_VPATH_ERR:
1546 case VXGE_HW_EVENT_CRITICAL_ERR:
1547 vxge_stop_all_tx_queue(vdev);
1548 vxge_debug_init(VXGE_ERR,
1549 "fatal: %s: Disabling device due to"
1552 /* SOP or device reset required */
1553 /* This event is not currently used */
1556 case VXGE_HW_EVENT_SERR:
1557 vxge_stop_all_tx_queue(vdev);
1558 vxge_debug_init(VXGE_ERR,
1559 "fatal: %s: Disabling device due to"
1564 case VXGE_HW_EVENT_SRPCIM_SERR:
1565 case VXGE_HW_EVENT_MRPCIM_SERR:
1568 case VXGE_HW_EVENT_SLOT_FREEZE:
1569 vxge_stop_all_tx_queue(vdev);
1570 vxge_debug_init(VXGE_ERR,
1571 "fatal: %s: Disabling device due to"
1582 if ((event == VXGE_LL_FULL_RESET) || (event == VXGE_LL_START_RESET))
1583 vxge_stop_all_tx_queue(vdev);
1585 if (event == VXGE_LL_FULL_RESET) {
1586 status = vxge_reset_all_vpaths(vdev);
1587 if (status != VXGE_HW_OK) {
1588 vxge_debug_init(VXGE_ERR,
1589 "fatal: %s: can not reset vpaths",
1596 if (event == VXGE_LL_COMPL_RESET) {
1597 for (i = 0; i < vdev->no_of_vpath; i++)
1598 if (vdev->vpaths[i].handle) {
1599 if (vxge_hw_vpath_recover_from_reset(
1600 vdev->vpaths[i].handle)
1602 vxge_debug_init(VXGE_ERR,
1603 "vxge_hw_vpath_recover_"
1604 "from_reset failed for vpath: "
1610 vxge_debug_init(VXGE_ERR,
1611 "vxge_hw_vpath_reset failed for "
1618 if ((event == VXGE_LL_FULL_RESET) || (event == VXGE_LL_COMPL_RESET)) {
1619 /* Reprogram the DA table with populated mac addresses */
1620 for (vp_id = 0; vp_id < vdev->no_of_vpath; vp_id++) {
1621 vxge_restore_vpath_mac_addr(&vdev->vpaths[vp_id]);
1622 vxge_restore_vpath_vid_table(&vdev->vpaths[vp_id]);
1625 /* enable vpath interrupts */
1626 for (i = 0; i < vdev->no_of_vpath; i++)
1627 vxge_vpath_intr_enable(vdev, i);
1629 vxge_hw_device_intr_enable(vdev->devh);
1633 /* Indicate card up */
1634 set_bit(__VXGE_STATE_CARD_UP, &vdev->state);
1636 /* Get the traffic to flow through the vpaths */
1637 for (i = 0; i < vdev->no_of_vpath; i++) {
1638 vxge_hw_vpath_enable(vdev->vpaths[i].handle);
1640 vxge_hw_vpath_rx_doorbell_init(vdev->vpaths[i].handle);
1643 vxge_wake_all_tx_queue(vdev);
1647 vxge_debug_entryexit(VXGE_TRACE,
1648 "%s:%d Exiting...", __func__, __LINE__);
1650 /* Indicate reset done */
1651 if ((event == VXGE_LL_FULL_RESET) || (event == VXGE_LL_COMPL_RESET))
1652 clear_bit(__VXGE_STATE_RESET_CARD, &vdev->state);
1658 * @vdev: pointer to ll device
1660 * driver may reset the chip on events of serr, eccerr, etc
1662 int vxge_reset(struct vxgedev *vdev)
1664 do_vxge_reset(vdev, VXGE_LL_FULL_RESET);
1669 * vxge_poll - Receive handler when Receive Polling is used.
1670 * @dev: pointer to the device structure.
1671 * @budget: Number of packets budgeted to be processed in this iteration.
1673 * This function comes into picture only if Receive side is being handled
1674 * through polling (called NAPI in linux). It mostly does what the normal
1675 * Rx interrupt handler does in terms of descriptor and packet processing
1676 * but not in an interrupt context. Also it will process a specified number
1677 * of packets at most in one iteration. This value is passed down by the
1678 * kernel as the function argument 'budget'.
1680 static int vxge_poll_msix(struct napi_struct *napi, int budget)
1682 struct vxge_ring *ring =
1683 container_of(napi, struct vxge_ring, napi);
1684 int budget_org = budget;
1685 ring->budget = budget;
1687 vxge_hw_vpath_poll_rx(ring->handle);
1689 if (ring->pkts_processed < budget_org) {
1690 napi_complete(napi);
1691 /* Re enable the Rx interrupts for the vpath */
1692 vxge_hw_channel_msix_unmask(
1693 (struct __vxge_hw_channel *)ring->handle,
1694 ring->rx_vector_no);
1697 return ring->pkts_processed;
1700 static int vxge_poll_inta(struct napi_struct *napi, int budget)
1702 struct vxgedev *vdev = container_of(napi, struct vxgedev, napi);
1703 int pkts_processed = 0;
1705 int budget_org = budget;
1706 struct vxge_ring *ring;
1708 struct __vxge_hw_device *hldev = (struct __vxge_hw_device *)
1709 pci_get_drvdata(vdev->pdev);
1711 for (i = 0; i < vdev->no_of_vpath; i++) {
1712 ring = &vdev->vpaths[i].ring;
1713 ring->budget = budget;
1714 vxge_hw_vpath_poll_rx(ring->handle);
1715 pkts_processed += ring->pkts_processed;
1716 budget -= ring->pkts_processed;
1721 VXGE_COMPLETE_ALL_TX(vdev);
1723 if (pkts_processed < budget_org) {
1724 napi_complete(napi);
1725 /* Re enable the Rx interrupts for the ring */
1726 vxge_hw_device_unmask_all(hldev);
1727 vxge_hw_device_flush_io(hldev);
1730 return pkts_processed;
1733 #ifdef CONFIG_NET_POLL_CONTROLLER
1735 * vxge_netpoll - netpoll event handler entry point
1736 * @dev : pointer to the device structure.
1738 * This function will be called by upper layer to check for events on the
1739 * interface in situations where interrupts are disabled. It is used for
1740 * specific in-kernel networking tasks, such as remote consoles and kernel
1741 * debugging over the network (example netdump in RedHat).
1743 static void vxge_netpoll(struct net_device *dev)
1745 struct __vxge_hw_device *hldev;
1746 struct vxgedev *vdev;
1748 vdev = (struct vxgedev *)netdev_priv(dev);
1749 hldev = (struct __vxge_hw_device *)pci_get_drvdata(vdev->pdev);
1751 vxge_debug_entryexit(VXGE_TRACE, "%s:%d", __func__, __LINE__);
1753 if (pci_channel_offline(vdev->pdev))
1756 disable_irq(dev->irq);
1757 vxge_hw_device_clear_tx_rx(hldev);
1759 vxge_hw_device_clear_tx_rx(hldev);
1760 VXGE_COMPLETE_ALL_RX(vdev);
1761 VXGE_COMPLETE_ALL_TX(vdev);
1763 enable_irq(dev->irq);
1765 vxge_debug_entryexit(VXGE_TRACE,
1766 "%s:%d Exiting...", __func__, __LINE__);
1770 /* RTH configuration */
1771 static enum vxge_hw_status vxge_rth_configure(struct vxgedev *vdev)
1773 enum vxge_hw_status status = VXGE_HW_OK;
1774 struct vxge_hw_rth_hash_types hash_types;
1775 u8 itable[256] = {0}; /* indirection table */
1776 u8 mtable[256] = {0}; /* CPU to vpath mapping */
1781 * - itable with bucket numbers
1782 * - mtable with bucket-to-vpath mapping
1784 for (index = 0; index < (1 << vdev->config.rth_bkt_sz); index++) {
1785 itable[index] = index;
1786 mtable[index] = index % vdev->no_of_vpath;
1789 /* Fill RTH hash types */
1790 hash_types.hash_type_tcpipv4_en = vdev->config.rth_hash_type_tcpipv4;
1791 hash_types.hash_type_ipv4_en = vdev->config.rth_hash_type_ipv4;
1792 hash_types.hash_type_tcpipv6_en = vdev->config.rth_hash_type_tcpipv6;
1793 hash_types.hash_type_ipv6_en = vdev->config.rth_hash_type_ipv6;
1794 hash_types.hash_type_tcpipv6ex_en =
1795 vdev->config.rth_hash_type_tcpipv6ex;
1796 hash_types.hash_type_ipv6ex_en = vdev->config.rth_hash_type_ipv6ex;
1798 /* set indirection table, bucket-to-vpath mapping */
1799 status = vxge_hw_vpath_rts_rth_itable_set(vdev->vp_handles,
1802 vdev->config.rth_bkt_sz);
1803 if (status != VXGE_HW_OK) {
1804 vxge_debug_init(VXGE_ERR,
1805 "RTH indirection table configuration failed "
1806 "for vpath:%d", vdev->vpaths[0].device_id);
1811 * Because the itable_set() method uses the active_table field
1812 * for the target virtual path the RTH config should be updated
1813 * for all VPATHs. The h/w only uses the lowest numbered VPATH
1814 * when steering frames.
1816 for (index = 0; index < vdev->no_of_vpath; index++) {
1817 status = vxge_hw_vpath_rts_rth_set(
1818 vdev->vpaths[index].handle,
1819 vdev->config.rth_algorithm,
1821 vdev->config.rth_bkt_sz);
1823 if (status != VXGE_HW_OK) {
1824 vxge_debug_init(VXGE_ERR,
1825 "RTH configuration failed for vpath:%d",
1826 vdev->vpaths[index].device_id);
1834 int vxge_mac_list_add(struct vxge_vpath *vpath, struct macInfo *mac)
1836 struct vxge_mac_addrs *new_mac_entry;
1837 u8 *mac_address = NULL;
1839 if (vpath->mac_addr_cnt >= VXGE_MAX_LEARN_MAC_ADDR_CNT)
1842 new_mac_entry = kzalloc(sizeof(struct vxge_mac_addrs), GFP_ATOMIC);
1843 if (!new_mac_entry) {
1844 vxge_debug_mem(VXGE_ERR,
1845 "%s: memory allocation failed",
1850 list_add(&new_mac_entry->item, &vpath->mac_addr_list);
1852 /* Copy the new mac address to the list */
1853 mac_address = (u8 *)&new_mac_entry->macaddr;
1854 memcpy(mac_address, mac->macaddr, ETH_ALEN);
1856 new_mac_entry->state = mac->state;
1857 vpath->mac_addr_cnt++;
1859 /* Is this a multicast address */
1860 if (0x01 & mac->macaddr[0])
1861 vpath->mcast_addr_cnt++;
1866 /* Add a mac address to DA table */
1867 enum vxge_hw_status vxge_add_mac_addr(struct vxgedev *vdev, struct macInfo *mac)
1869 enum vxge_hw_status status = VXGE_HW_OK;
1870 struct vxge_vpath *vpath;
1871 enum vxge_hw_vpath_mac_addr_add_mode duplicate_mode;
1873 if (0x01 & mac->macaddr[0]) /* multicast address */
1874 duplicate_mode = VXGE_HW_VPATH_MAC_ADDR_ADD_DUPLICATE;
1876 duplicate_mode = VXGE_HW_VPATH_MAC_ADDR_REPLACE_DUPLICATE;
1878 vpath = &vdev->vpaths[mac->vpath_no];
1879 status = vxge_hw_vpath_mac_addr_add(vpath->handle, mac->macaddr,
1880 mac->macmask, duplicate_mode);
1881 if (status != VXGE_HW_OK) {
1882 vxge_debug_init(VXGE_ERR,
1883 "DA config add entry failed for vpath:%d",
1886 if (FALSE == vxge_mac_list_add(vpath, mac))
1892 int vxge_mac_list_del(struct vxge_vpath *vpath, struct macInfo *mac)
1894 struct list_head *entry, *next;
1896 u8 *mac_address = (u8 *) (&del_mac);
1898 /* Copy the mac address to delete from the list */
1899 memcpy(mac_address, mac->macaddr, ETH_ALEN);
1901 list_for_each_safe(entry, next, &vpath->mac_addr_list) {
1902 if (((struct vxge_mac_addrs *)entry)->macaddr == del_mac) {
1904 kfree((struct vxge_mac_addrs *)entry);
1905 vpath->mac_addr_cnt--;
1907 /* Is this a multicast address */
1908 if (0x01 & mac->macaddr[0])
1909 vpath->mcast_addr_cnt--;
1916 /* delete a mac address from DA table */
1917 enum vxge_hw_status vxge_del_mac_addr(struct vxgedev *vdev, struct macInfo *mac)
1919 enum vxge_hw_status status = VXGE_HW_OK;
1920 struct vxge_vpath *vpath;
1922 vpath = &vdev->vpaths[mac->vpath_no];
1923 status = vxge_hw_vpath_mac_addr_delete(vpath->handle, mac->macaddr,
1925 if (status != VXGE_HW_OK) {
1926 vxge_debug_init(VXGE_ERR,
1927 "DA config delete entry failed for vpath:%d",
1930 vxge_mac_list_del(vpath, mac);
1934 /* list all mac addresses from DA table */
1936 static vxge_search_mac_addr_in_da_table(struct vxge_vpath *vpath,
1937 struct macInfo *mac)
1939 enum vxge_hw_status status = VXGE_HW_OK;
1940 unsigned char macmask[ETH_ALEN];
1941 unsigned char macaddr[ETH_ALEN];
1943 status = vxge_hw_vpath_mac_addr_get(vpath->handle,
1945 if (status != VXGE_HW_OK) {
1946 vxge_debug_init(VXGE_ERR,
1947 "DA config list entry failed for vpath:%d",
1952 while (memcmp(mac->macaddr, macaddr, ETH_ALEN)) {
1954 status = vxge_hw_vpath_mac_addr_get_next(vpath->handle,
1956 if (status != VXGE_HW_OK)
1963 /* Store all vlan ids from the list to the vid table */
1964 enum vxge_hw_status vxge_restore_vpath_vid_table(struct vxge_vpath *vpath)
1966 enum vxge_hw_status status = VXGE_HW_OK;
1967 struct vxgedev *vdev = vpath->vdev;
1970 if (vdev->vlgrp && vpath->is_open) {
1972 for (vid = 0; vid < VLAN_GROUP_ARRAY_LEN; vid++) {
1973 if (!vlan_group_get_device(vdev->vlgrp, vid))
1975 /* Add these vlan to the vid table */
1976 status = vxge_hw_vpath_vid_add(vpath->handle, vid);
1983 /* Store all mac addresses from the list to the DA table */
1984 enum vxge_hw_status vxge_restore_vpath_mac_addr(struct vxge_vpath *vpath)
1986 enum vxge_hw_status status = VXGE_HW_OK;
1987 struct macInfo mac_info;
1988 u8 *mac_address = NULL;
1989 struct list_head *entry, *next;
1991 memset(&mac_info, 0, sizeof(struct macInfo));
1993 if (vpath->is_open) {
1995 list_for_each_safe(entry, next, &vpath->mac_addr_list) {
1998 ((struct vxge_mac_addrs *)entry)->macaddr;
1999 memcpy(mac_info.macaddr, mac_address, ETH_ALEN);
2000 ((struct vxge_mac_addrs *)entry)->state =
2001 VXGE_LL_MAC_ADDR_IN_DA_TABLE;
2002 /* does this mac address already exist in da table? */
2003 status = vxge_search_mac_addr_in_da_table(vpath,
2005 if (status != VXGE_HW_OK) {
2006 /* Add this mac address to the DA table */
2007 status = vxge_hw_vpath_mac_addr_add(
2008 vpath->handle, mac_info.macaddr,
2010 VXGE_HW_VPATH_MAC_ADDR_ADD_DUPLICATE);
2011 if (status != VXGE_HW_OK) {
2012 vxge_debug_init(VXGE_ERR,
2013 "DA add entry failed for vpath:%d",
2015 ((struct vxge_mac_addrs *)entry)->state
2016 = VXGE_LL_MAC_ADDR_IN_LIST;
2026 enum vxge_hw_status vxge_reset_all_vpaths(struct vxgedev *vdev)
2029 enum vxge_hw_status status = VXGE_HW_OK;
2031 for (i = 0; i < vdev->no_of_vpath; i++)
2032 if (vdev->vpaths[i].handle) {
2033 if (vxge_hw_vpath_reset(vdev->vpaths[i].handle)
2035 if (is_vxge_card_up(vdev) &&
2036 vxge_hw_vpath_recover_from_reset(
2037 vdev->vpaths[i].handle)
2039 vxge_debug_init(VXGE_ERR,
2040 "vxge_hw_vpath_recover_"
2041 "from_reset failed for vpath: "
2046 vxge_debug_init(VXGE_ERR,
2047 "vxge_hw_vpath_reset failed for "
2056 void vxge_close_vpaths(struct vxgedev *vdev, int index)
2059 for (i = index; i < vdev->no_of_vpath; i++) {
2060 if (vdev->vpaths[i].handle && vdev->vpaths[i].is_open) {
2061 vxge_hw_vpath_close(vdev->vpaths[i].handle);
2062 vdev->stats.vpaths_open--;
2064 vdev->vpaths[i].is_open = 0;
2065 vdev->vpaths[i].handle = NULL;
2070 int vxge_open_vpaths(struct vxgedev *vdev)
2072 enum vxge_hw_status status;
2075 struct vxge_hw_vpath_attr attr;
2077 for (i = 0; i < vdev->no_of_vpath; i++) {
2078 vxge_assert(vdev->vpaths[i].is_configured);
2079 attr.vp_id = vdev->vpaths[i].device_id;
2080 attr.fifo_attr.callback = vxge_xmit_compl;
2081 attr.fifo_attr.txdl_term = vxge_tx_term;
2082 attr.fifo_attr.per_txdl_space = sizeof(struct vxge_tx_priv);
2083 attr.fifo_attr.userdata = (void *)&vdev->vpaths[i].fifo;
2085 attr.ring_attr.callback = vxge_rx_1b_compl;
2086 attr.ring_attr.rxd_init = vxge_rx_initial_replenish;
2087 attr.ring_attr.rxd_term = vxge_rx_term;
2088 attr.ring_attr.per_rxd_space = sizeof(struct vxge_rx_priv);
2089 attr.ring_attr.userdata = (void *)&vdev->vpaths[i].ring;
2091 vdev->vpaths[i].ring.ndev = vdev->ndev;
2092 vdev->vpaths[i].ring.pdev = vdev->pdev;
2093 status = vxge_hw_vpath_open(vdev->devh, &attr,
2094 &(vdev->vpaths[i].handle));
2095 if (status == VXGE_HW_OK) {
2096 vdev->vpaths[i].fifo.handle =
2097 (struct __vxge_hw_fifo *)attr.fifo_attr.userdata;
2098 vdev->vpaths[i].ring.handle =
2099 (struct __vxge_hw_ring *)attr.ring_attr.userdata;
2100 vdev->vpaths[i].fifo.tx_steering_type =
2101 vdev->config.tx_steering_type;
2102 vdev->vpaths[i].fifo.ndev = vdev->ndev;
2103 vdev->vpaths[i].fifo.pdev = vdev->pdev;
2104 vdev->vpaths[i].fifo.indicate_max_pkts =
2105 vdev->config.fifo_indicate_max_pkts;
2106 vdev->vpaths[i].ring.rx_vector_no = 0;
2107 vdev->vpaths[i].ring.rx_csum = vdev->rx_csum;
2108 vdev->vpaths[i].is_open = 1;
2109 vdev->vp_handles[i] = vdev->vpaths[i].handle;
2110 vdev->vpaths[i].ring.gro_enable =
2111 vdev->config.gro_enable;
2112 vdev->vpaths[i].ring.vlan_tag_strip =
2113 vdev->vlan_tag_strip;
2114 vdev->stats.vpaths_open++;
2116 vdev->stats.vpath_open_fail++;
2117 vxge_debug_init(VXGE_ERR,
2118 "%s: vpath: %d failed to open "
2120 vdev->ndev->name, vdev->vpaths[i].device_id,
2122 vxge_close_vpaths(vdev, 0);
2127 ((struct __vxge_hw_vpath_handle *)vdev->vpaths[i].handle)->
2129 vdev->vpaths_deployed |= vxge_mBIT(vp_id);
2136 * @irq: the irq of the device.
2137 * @dev_id: a void pointer to the hldev structure of the Titan device
2138 * @ptregs: pointer to the registers pushed on the stack.
2140 * This function is the ISR handler of the device when napi is enabled. It
2141 * identifies the reason for the interrupt and calls the relevant service
2144 static irqreturn_t vxge_isr_napi(int irq, void *dev_id)
2146 struct net_device *dev;
2147 struct __vxge_hw_device *hldev;
2149 enum vxge_hw_status status;
2150 struct vxgedev *vdev = (struct vxgedev *) dev_id;;
2152 vxge_debug_intr(VXGE_TRACE, "%s:%d", __func__, __LINE__);
2155 hldev = (struct __vxge_hw_device *)pci_get_drvdata(vdev->pdev);
2157 if (pci_channel_offline(vdev->pdev))
2160 if (unlikely(!is_vxge_card_up(vdev)))
2163 status = vxge_hw_device_begin_irq(hldev, vdev->exec_mode,
2165 if (status == VXGE_HW_OK) {
2166 vxge_hw_device_mask_all(hldev);
2169 VXGE_HW_TITAN_GENERAL_INT_STATUS_VPATH_TRAFFIC_INT(
2170 vdev->vpaths_deployed >>
2171 (64 - VXGE_HW_MAX_VIRTUAL_PATHS))) {
2173 vxge_hw_device_clear_tx_rx(hldev);
2174 napi_schedule(&vdev->napi);
2175 vxge_debug_intr(VXGE_TRACE,
2176 "%s:%d Exiting...", __func__, __LINE__);
2179 vxge_hw_device_unmask_all(hldev);
2180 } else if (unlikely((status == VXGE_HW_ERR_VPATH) ||
2181 (status == VXGE_HW_ERR_CRITICAL) ||
2182 (status == VXGE_HW_ERR_FIFO))) {
2183 vxge_hw_device_mask_all(hldev);
2184 vxge_hw_device_flush_io(hldev);
2186 } else if (unlikely(status == VXGE_HW_ERR_SLOT_FREEZE))
2189 vxge_debug_intr(VXGE_TRACE, "%s:%d Exiting...", __func__, __LINE__);
2193 #ifdef CONFIG_PCI_MSI
2196 vxge_tx_msix_handle(int irq, void *dev_id)
2198 struct vxge_fifo *fifo = (struct vxge_fifo *)dev_id;
2200 VXGE_COMPLETE_VPATH_TX(fifo);
2206 vxge_rx_msix_napi_handle(int irq, void *dev_id)
2208 struct vxge_ring *ring = (struct vxge_ring *)dev_id;
2210 /* MSIX_IDX for Rx is 1 */
2211 vxge_hw_channel_msix_mask((struct __vxge_hw_channel *)ring->handle,
2212 ring->rx_vector_no);
2214 napi_schedule(&ring->napi);
2219 vxge_alarm_msix_handle(int irq, void *dev_id)
2222 enum vxge_hw_status status;
2223 struct vxge_vpath *vpath = (struct vxge_vpath *)dev_id;
2224 struct vxgedev *vdev = vpath->vdev;
2225 int msix_id = (vpath->handle->vpath->vp_id *
2226 VXGE_HW_VPATH_MSIX_ACTIVE) + VXGE_ALARM_MSIX_ID;
2228 for (i = 0; i < vdev->no_of_vpath; i++) {
2229 vxge_hw_vpath_msix_mask(vdev->vpaths[i].handle, msix_id);
2231 status = vxge_hw_vpath_alarm_process(vdev->vpaths[i].handle,
2233 if (status == VXGE_HW_OK) {
2235 vxge_hw_vpath_msix_unmask(vdev->vpaths[i].handle,
2239 vxge_debug_intr(VXGE_ERR,
2240 "%s: vxge_hw_vpath_alarm_process failed %x ",
2241 VXGE_DRIVER_NAME, status);
2246 static int vxge_alloc_msix(struct vxgedev *vdev)
2249 int msix_intr_vect = 0, temp;
2253 /* Tx/Rx MSIX Vectors count */
2254 vdev->intr_cnt = vdev->no_of_vpath * 2;
2256 /* Alarm MSIX Vectors count */
2259 vdev->entries = kzalloc(vdev->intr_cnt * sizeof(struct msix_entry),
2261 if (!vdev->entries) {
2262 vxge_debug_init(VXGE_ERR,
2263 "%s: memory allocation failed",
2266 goto alloc_entries_failed;
2269 vdev->vxge_entries =
2270 kzalloc(vdev->intr_cnt * sizeof(struct vxge_msix_entry),
2272 if (!vdev->vxge_entries) {
2273 vxge_debug_init(VXGE_ERR, "%s: memory allocation failed",
2276 goto alloc_vxge_entries_failed;
2279 for (i = 0, j = 0; i < vdev->no_of_vpath; i++) {
2281 msix_intr_vect = i * VXGE_HW_VPATH_MSIX_ACTIVE;
2283 /* Initialize the fifo vector */
2284 vdev->entries[j].entry = msix_intr_vect;
2285 vdev->vxge_entries[j].entry = msix_intr_vect;
2286 vdev->vxge_entries[j].in_use = 0;
2289 /* Initialize the ring vector */
2290 vdev->entries[j].entry = msix_intr_vect + 1;
2291 vdev->vxge_entries[j].entry = msix_intr_vect + 1;
2292 vdev->vxge_entries[j].in_use = 0;
2296 /* Initialize the alarm vector */
2297 vdev->entries[j].entry = VXGE_ALARM_MSIX_ID;
2298 vdev->vxge_entries[j].entry = VXGE_ALARM_MSIX_ID;
2299 vdev->vxge_entries[j].in_use = 0;
2301 ret = pci_enable_msix(vdev->pdev, vdev->entries, vdev->intr_cnt);
2304 vxge_debug_init(VXGE_ERR,
2305 "%s: MSI-X enable failed for %d vectors, ret: %d",
2306 VXGE_DRIVER_NAME, vdev->intr_cnt, ret);
2307 if ((max_config_vpath != VXGE_USE_DEFAULT) || (ret < 3)) {
2309 goto enable_msix_failed;
2312 kfree(vdev->entries);
2313 kfree(vdev->vxge_entries);
2314 vdev->entries = NULL;
2315 vdev->vxge_entries = NULL;
2316 /* Try with less no of vector by reducing no of vpaths count */
2318 vxge_close_vpaths(vdev, temp);
2319 vdev->no_of_vpath = temp;
2321 } else if (ret < 0) {
2323 goto enable_msix_failed;
2328 kfree(vdev->vxge_entries);
2329 alloc_vxge_entries_failed:
2330 kfree(vdev->entries);
2331 alloc_entries_failed:
2335 static int vxge_enable_msix(struct vxgedev *vdev)
2339 /* 0 - Tx, 1 - Rx */
2340 int tim_msix_id[4] = {0, 1, 0, 0};
2344 /* allocate msix vectors */
2345 ret = vxge_alloc_msix(vdev);
2347 for (i = 0; i < vdev->no_of_vpath; i++) {
2349 /* If fifo or ring are not enabled
2350 the MSIX vector for that should be set to 0
2351 Hence initializeing this array to all 0s.
2353 vdev->vpaths[i].ring.rx_vector_no =
2354 (vdev->vpaths[i].device_id *
2355 VXGE_HW_VPATH_MSIX_ACTIVE) + 1;
2357 vxge_hw_vpath_msix_set(vdev->vpaths[i].handle,
2358 tim_msix_id, VXGE_ALARM_MSIX_ID);
2365 static void vxge_rem_msix_isr(struct vxgedev *vdev)
2369 for (intr_cnt = 0; intr_cnt < (vdev->no_of_vpath * 2 + 1);
2371 if (vdev->vxge_entries[intr_cnt].in_use) {
2372 synchronize_irq(vdev->entries[intr_cnt].vector);
2373 free_irq(vdev->entries[intr_cnt].vector,
2374 vdev->vxge_entries[intr_cnt].arg);
2375 vdev->vxge_entries[intr_cnt].in_use = 0;
2379 kfree(vdev->entries);
2380 kfree(vdev->vxge_entries);
2381 vdev->entries = NULL;
2382 vdev->vxge_entries = NULL;
2384 if (vdev->config.intr_type == MSI_X)
2385 pci_disable_msix(vdev->pdev);
2389 static void vxge_rem_isr(struct vxgedev *vdev)
2391 struct __vxge_hw_device *hldev;
2392 hldev = (struct __vxge_hw_device *) pci_get_drvdata(vdev->pdev);
2394 #ifdef CONFIG_PCI_MSI
2395 if (vdev->config.intr_type == MSI_X) {
2396 vxge_rem_msix_isr(vdev);
2399 if (vdev->config.intr_type == INTA) {
2400 synchronize_irq(vdev->pdev->irq);
2401 free_irq(vdev->pdev->irq, vdev);
2405 static int vxge_add_isr(struct vxgedev *vdev)
2408 #ifdef CONFIG_PCI_MSI
2409 int vp_idx = 0, intr_idx = 0, intr_cnt = 0, msix_idx = 0, irq_req = 0;
2410 int pci_fun = PCI_FUNC(vdev->pdev->devfn);
2412 if (vdev->config.intr_type == MSI_X)
2413 ret = vxge_enable_msix(vdev);
2416 vxge_debug_init(VXGE_ERR,
2417 "%s: Enabling MSI-X Failed", VXGE_DRIVER_NAME);
2418 vxge_debug_init(VXGE_ERR,
2419 "%s: Defaulting to INTA", VXGE_DRIVER_NAME);
2420 vdev->config.intr_type = INTA;
2423 if (vdev->config.intr_type == MSI_X) {
2425 intr_idx < (vdev->no_of_vpath *
2426 VXGE_HW_VPATH_MSIX_ACTIVE); intr_idx++) {
2428 msix_idx = intr_idx % VXGE_HW_VPATH_MSIX_ACTIVE;
2433 snprintf(vdev->desc[intr_cnt], VXGE_INTR_STRLEN,
2434 "%s:vxge:MSI-X %d - Tx - fn:%d vpath:%d",
2436 vdev->entries[intr_cnt].entry,
2439 vdev->entries[intr_cnt].vector,
2440 vxge_tx_msix_handle, 0,
2441 vdev->desc[intr_cnt],
2442 &vdev->vpaths[vp_idx].fifo);
2443 vdev->vxge_entries[intr_cnt].arg =
2444 &vdev->vpaths[vp_idx].fifo;
2448 snprintf(vdev->desc[intr_cnt], VXGE_INTR_STRLEN,
2449 "%s:vxge:MSI-X %d - Rx - fn:%d vpath:%d",
2451 vdev->entries[intr_cnt].entry,
2454 vdev->entries[intr_cnt].vector,
2455 vxge_rx_msix_napi_handle,
2457 vdev->desc[intr_cnt],
2458 &vdev->vpaths[vp_idx].ring);
2459 vdev->vxge_entries[intr_cnt].arg =
2460 &vdev->vpaths[vp_idx].ring;
2466 vxge_debug_init(VXGE_ERR,
2467 "%s: MSIX - %d Registration failed",
2468 vdev->ndev->name, intr_cnt);
2469 vxge_rem_msix_isr(vdev);
2470 vdev->config.intr_type = INTA;
2471 vxge_debug_init(VXGE_ERR,
2472 "%s: Defaulting to INTA"
2473 , vdev->ndev->name);
2478 /* We requested for this msix interrupt */
2479 vdev->vxge_entries[intr_cnt].in_use = 1;
2480 msix_idx += vdev->vpaths[vp_idx].device_id *
2481 VXGE_HW_VPATH_MSIX_ACTIVE;
2482 vxge_hw_vpath_msix_unmask(
2483 vdev->vpaths[vp_idx].handle,
2488 /* Point to next vpath handler */
2489 if (((intr_idx + 1) % VXGE_HW_VPATH_MSIX_ACTIVE == 0) &&
2490 (vp_idx < (vdev->no_of_vpath - 1)))
2494 intr_cnt = vdev->no_of_vpath * 2;
2495 snprintf(vdev->desc[intr_cnt], VXGE_INTR_STRLEN,
2496 "%s:vxge:MSI-X %d - Alarm - fn:%d",
2498 vdev->entries[intr_cnt].entry,
2500 /* For Alarm interrupts */
2501 ret = request_irq(vdev->entries[intr_cnt].vector,
2502 vxge_alarm_msix_handle, 0,
2503 vdev->desc[intr_cnt],
2506 vxge_debug_init(VXGE_ERR,
2507 "%s: MSIX - %d Registration failed",
2508 vdev->ndev->name, intr_cnt);
2509 vxge_rem_msix_isr(vdev);
2510 vdev->config.intr_type = INTA;
2511 vxge_debug_init(VXGE_ERR,
2512 "%s: Defaulting to INTA",
2517 msix_idx = (vdev->vpaths[0].handle->vpath->vp_id *
2518 VXGE_HW_VPATH_MSIX_ACTIVE) + VXGE_ALARM_MSIX_ID;
2519 vxge_hw_vpath_msix_unmask(vdev->vpaths[vp_idx].handle,
2521 vdev->vxge_entries[intr_cnt].in_use = 1;
2522 vdev->vxge_entries[intr_cnt].arg = &vdev->vpaths[0];
2527 if (vdev->config.intr_type == INTA) {
2528 snprintf(vdev->desc[0], VXGE_INTR_STRLEN,
2529 "%s:vxge:INTA", vdev->ndev->name);
2530 vxge_hw_device_set_intr_type(vdev->devh,
2531 VXGE_HW_INTR_MODE_IRQLINE);
2532 vxge_hw_vpath_tti_ci_set(vdev->devh,
2533 vdev->vpaths[0].device_id);
2534 ret = request_irq((int) vdev->pdev->irq,
2536 IRQF_SHARED, vdev->desc[0], vdev);
2538 vxge_debug_init(VXGE_ERR,
2539 "%s %s-%d: ISR registration failed",
2540 VXGE_DRIVER_NAME, "IRQ", vdev->pdev->irq);
2543 vxge_debug_init(VXGE_TRACE,
2544 "new %s-%d line allocated",
2545 "IRQ", vdev->pdev->irq);
2551 static void vxge_poll_vp_reset(unsigned long data)
2553 struct vxgedev *vdev = (struct vxgedev *)data;
2556 for (i = 0; i < vdev->no_of_vpath; i++) {
2557 if (test_bit(i, &vdev->vp_reset)) {
2558 vxge_reset_vpath(vdev, i);
2562 if (j && (vdev->config.intr_type != MSI_X)) {
2563 vxge_hw_device_unmask_all(vdev->devh);
2564 vxge_hw_device_flush_io(vdev->devh);
2567 mod_timer(&vdev->vp_reset_timer, jiffies + HZ / 2);
2570 static void vxge_poll_vp_lockup(unsigned long data)
2572 struct vxgedev *vdev = (struct vxgedev *)data;
2574 struct vxge_ring *ring;
2575 enum vxge_hw_status status = VXGE_HW_OK;
2577 for (i = 0; i < vdev->no_of_vpath; i++) {
2578 ring = &vdev->vpaths[i].ring;
2579 /* Did this vpath received any packets */
2580 if (ring->stats.prev_rx_frms == ring->stats.rx_frms) {
2581 status = vxge_hw_vpath_check_leak(ring->handle);
2583 /* Did it received any packets last time */
2584 if ((VXGE_HW_FAIL == status) &&
2585 (VXGE_HW_FAIL == ring->last_status)) {
2587 /* schedule vpath reset */
2588 if (!test_and_set_bit(i, &vdev->vp_reset)) {
2590 /* disable interrupts for this vpath */
2591 vxge_vpath_intr_disable(vdev, i);
2593 /* stop the queue for this vpath */
2594 vxge_stop_tx_queue(&vdev->vpaths[i].
2600 ring->stats.prev_rx_frms = ring->stats.rx_frms;
2601 ring->last_status = status;
2604 /* Check every 1 milli second */
2605 mod_timer(&vdev->vp_lockup_timer, jiffies + HZ / 1000);
2610 * @dev: pointer to the device structure.
2612 * This function is the open entry point of the driver. It mainly calls a
2613 * function to allocate Rx buffers and inserts them into the buffer
2614 * descriptors and then enables the Rx part of the NIC.
2615 * Return value: '0' on success and an appropriate (-)ve integer as
2616 * defined in errno.h file on failure.
2619 vxge_open(struct net_device *dev)
2621 enum vxge_hw_status status;
2622 struct vxgedev *vdev;
2623 struct __vxge_hw_device *hldev;
2626 u64 val64, function_mode;
2627 vxge_debug_entryexit(VXGE_TRACE,
2628 "%s: %s:%d", dev->name, __func__, __LINE__);
2630 vdev = (struct vxgedev *)netdev_priv(dev);
2631 hldev = (struct __vxge_hw_device *) pci_get_drvdata(vdev->pdev);
2632 function_mode = vdev->config.device_hw_info.function_mode;
2634 /* make sure you have link off by default every time Nic is
2636 netif_carrier_off(dev);
2639 status = vxge_open_vpaths(vdev);
2640 if (status != VXGE_HW_OK) {
2641 vxge_debug_init(VXGE_ERR,
2642 "%s: fatal: Vpath open failed", vdev->ndev->name);
2647 vdev->mtu = dev->mtu;
2649 status = vxge_add_isr(vdev);
2650 if (status != VXGE_HW_OK) {
2651 vxge_debug_init(VXGE_ERR,
2652 "%s: fatal: ISR add failed", dev->name);
2658 if (vdev->config.intr_type != MSI_X) {
2659 netif_napi_add(dev, &vdev->napi, vxge_poll_inta,
2660 vdev->config.napi_weight);
2661 napi_enable(&vdev->napi);
2662 for (i = 0; i < vdev->no_of_vpath; i++)
2663 vdev->vpaths[i].ring.napi_p = &vdev->napi;
2665 for (i = 0; i < vdev->no_of_vpath; i++) {
2666 netif_napi_add(dev, &vdev->vpaths[i].ring.napi,
2667 vxge_poll_msix, vdev->config.napi_weight);
2668 napi_enable(&vdev->vpaths[i].ring.napi);
2669 vdev->vpaths[i].ring.napi_p =
2670 &vdev->vpaths[i].ring.napi;
2675 if (vdev->config.rth_steering) {
2676 status = vxge_rth_configure(vdev);
2677 if (status != VXGE_HW_OK) {
2678 vxge_debug_init(VXGE_ERR,
2679 "%s: fatal: RTH configuration failed",
2686 for (i = 0; i < vdev->no_of_vpath; i++) {
2687 /* set initial mtu before enabling the device */
2688 status = vxge_hw_vpath_mtu_set(vdev->vpaths[i].handle,
2690 if (status != VXGE_HW_OK) {
2691 vxge_debug_init(VXGE_ERR,
2692 "%s: fatal: can not set new MTU", dev->name);
2698 VXGE_DEVICE_DEBUG_LEVEL_SET(VXGE_TRACE, VXGE_COMPONENT_LL, vdev);
2699 vxge_debug_init(vdev->level_trace,
2700 "%s: MTU is %d", vdev->ndev->name, vdev->mtu);
2701 VXGE_DEVICE_DEBUG_LEVEL_SET(VXGE_ERR, VXGE_COMPONENT_LL, vdev);
2703 /* Reprogram the DA table with populated mac addresses */
2704 for (i = 0; i < vdev->no_of_vpath; i++) {
2705 vxge_restore_vpath_mac_addr(&vdev->vpaths[i]);
2706 vxge_restore_vpath_vid_table(&vdev->vpaths[i]);
2709 /* Enable vpath to sniff all unicast/multicast traffic that not
2710 * addressed to them. We allow promiscous mode for PF only
2714 for (i = 0; i < VXGE_HW_MAX_VIRTUAL_PATHS; i++)
2715 val64 |= VXGE_HW_RXMAC_AUTHORIZE_ALL_ADDR_VP(i);
2717 vxge_hw_mgmt_reg_write(vdev->devh,
2718 vxge_hw_mgmt_reg_type_mrpcim,
2720 (ulong)offsetof(struct vxge_hw_mrpcim_reg,
2721 rxmac_authorize_all_addr),
2724 vxge_hw_mgmt_reg_write(vdev->devh,
2725 vxge_hw_mgmt_reg_type_mrpcim,
2727 (ulong)offsetof(struct vxge_hw_mrpcim_reg,
2728 rxmac_authorize_all_vid),
2731 vxge_set_multicast(dev);
2733 /* Enabling Bcast and mcast for all vpath */
2734 for (i = 0; i < vdev->no_of_vpath; i++) {
2735 status = vxge_hw_vpath_bcast_enable(vdev->vpaths[i].handle);
2736 if (status != VXGE_HW_OK)
2737 vxge_debug_init(VXGE_ERR,
2738 "%s : Can not enable bcast for vpath "
2739 "id %d", dev->name, i);
2740 if (vdev->config.addr_learn_en) {
2742 vxge_hw_vpath_mcast_enable(vdev->vpaths[i].handle);
2743 if (status != VXGE_HW_OK)
2744 vxge_debug_init(VXGE_ERR,
2745 "%s : Can not enable mcast for vpath "
2746 "id %d", dev->name, i);
2750 vxge_hw_device_setpause_data(vdev->devh, 0,
2751 vdev->config.tx_pause_enable,
2752 vdev->config.rx_pause_enable);
2754 if (vdev->vp_reset_timer.function == NULL)
2755 vxge_os_timer(vdev->vp_reset_timer,
2756 vxge_poll_vp_reset, vdev, (HZ/2));
2758 if (vdev->vp_lockup_timer.function == NULL)
2759 vxge_os_timer(vdev->vp_lockup_timer,
2760 vxge_poll_vp_lockup, vdev, (HZ/2));
2762 set_bit(__VXGE_STATE_CARD_UP, &vdev->state);
2766 if (vxge_hw_device_link_state_get(vdev->devh) == VXGE_HW_LINK_UP) {
2767 netif_carrier_on(vdev->ndev);
2768 printk(KERN_NOTICE "%s: Link Up\n", vdev->ndev->name);
2769 vdev->stats.link_up++;
2772 vxge_hw_device_intr_enable(vdev->devh);
2776 for (i = 0; i < vdev->no_of_vpath; i++) {
2777 vxge_hw_vpath_enable(vdev->vpaths[i].handle);
2779 vxge_hw_vpath_rx_doorbell_init(vdev->vpaths[i].handle);
2782 vxge_start_all_tx_queue(vdev);
2789 if (vdev->config.intr_type != MSI_X)
2790 napi_disable(&vdev->napi);
2792 for (i = 0; i < vdev->no_of_vpath; i++)
2793 napi_disable(&vdev->vpaths[i].ring.napi);
2797 vxge_close_vpaths(vdev, 0);
2799 vxge_debug_entryexit(VXGE_TRACE,
2800 "%s: %s:%d Exiting...",
2801 dev->name, __func__, __LINE__);
2805 /* Loop throught the mac address list and delete all the entries */
2806 void vxge_free_mac_add_list(struct vxge_vpath *vpath)
2809 struct list_head *entry, *next;
2810 if (list_empty(&vpath->mac_addr_list))
2813 list_for_each_safe(entry, next, &vpath->mac_addr_list) {
2815 kfree((struct vxge_mac_addrs *)entry);
2819 static void vxge_napi_del_all(struct vxgedev *vdev)
2822 if (vdev->config.intr_type != MSI_X)
2823 netif_napi_del(&vdev->napi);
2825 for (i = 0; i < vdev->no_of_vpath; i++)
2826 netif_napi_del(&vdev->vpaths[i].ring.napi);
2830 int do_vxge_close(struct net_device *dev, int do_io)
2832 enum vxge_hw_status status;
2833 struct vxgedev *vdev;
2834 struct __vxge_hw_device *hldev;
2836 u64 val64, vpath_vector;
2837 vxge_debug_entryexit(VXGE_TRACE, "%s: %s:%d",
2838 dev->name, __func__, __LINE__);
2840 vdev = (struct vxgedev *)netdev_priv(dev);
2841 hldev = (struct __vxge_hw_device *) pci_get_drvdata(vdev->pdev);
2843 if (unlikely(!is_vxge_card_up(vdev)))
2846 /* If vxge_handle_crit_err task is executing,
2847 * wait till it completes. */
2848 while (test_and_set_bit(__VXGE_STATE_RESET_CARD, &vdev->state))
2851 clear_bit(__VXGE_STATE_CARD_UP, &vdev->state);
2853 /* Put the vpath back in normal mode */
2854 vpath_vector = vxge_mBIT(vdev->vpaths[0].device_id);
2855 status = vxge_hw_mgmt_reg_read(vdev->devh,
2856 vxge_hw_mgmt_reg_type_mrpcim,
2859 struct vxge_hw_mrpcim_reg,
2860 rts_mgr_cbasin_cfg),
2863 if (status == VXGE_HW_OK) {
2864 val64 &= ~vpath_vector;
2865 status = vxge_hw_mgmt_reg_write(vdev->devh,
2866 vxge_hw_mgmt_reg_type_mrpcim,
2869 struct vxge_hw_mrpcim_reg,
2870 rts_mgr_cbasin_cfg),
2874 /* Remove the function 0 from promiscous mode */
2875 vxge_hw_mgmt_reg_write(vdev->devh,
2876 vxge_hw_mgmt_reg_type_mrpcim,
2878 (ulong)offsetof(struct vxge_hw_mrpcim_reg,
2879 rxmac_authorize_all_addr),
2882 vxge_hw_mgmt_reg_write(vdev->devh,
2883 vxge_hw_mgmt_reg_type_mrpcim,
2885 (ulong)offsetof(struct vxge_hw_mrpcim_reg,
2886 rxmac_authorize_all_vid),
2891 del_timer_sync(&vdev->vp_lockup_timer);
2893 del_timer_sync(&vdev->vp_reset_timer);
2896 if (vdev->config.intr_type != MSI_X)
2897 napi_disable(&vdev->napi);
2899 for (i = 0; i < vdev->no_of_vpath; i++)
2900 napi_disable(&vdev->vpaths[i].ring.napi);
2903 netif_carrier_off(vdev->ndev);
2904 printk(KERN_NOTICE "%s: Link Down\n", vdev->ndev->name);
2905 vxge_stop_all_tx_queue(vdev);
2907 /* Note that at this point xmit() is stopped by upper layer */
2909 vxge_hw_device_intr_disable(vdev->devh);
2915 vxge_napi_del_all(vdev);
2918 vxge_reset_all_vpaths(vdev);
2920 vxge_close_vpaths(vdev, 0);
2922 vxge_debug_entryexit(VXGE_TRACE,
2923 "%s: %s:%d Exiting...", dev->name, __func__, __LINE__);
2925 clear_bit(__VXGE_STATE_RESET_CARD, &vdev->state);
2932 * @dev: device pointer.
2934 * This is the stop entry point of the driver. It needs to undo exactly
2935 * whatever was done by the open entry point, thus it's usually referred to
2936 * as the close function.Among other things this function mainly stops the
2937 * Rx side of the NIC and frees all the Rx buffers in the Rx rings.
2938 * Return value: '0' on success and an appropriate (-)ve integer as
2939 * defined in errno.h file on failure.
2942 vxge_close(struct net_device *dev)
2944 do_vxge_close(dev, 1);
2950 * @dev: net device pointer.
2951 * @new_mtu :the new MTU size for the device.
2953 * A driver entry point to change MTU size for the device. Before changing
2954 * the MTU the device must be stopped.
2956 static int vxge_change_mtu(struct net_device *dev, int new_mtu)
2958 struct vxgedev *vdev = netdev_priv(dev);
2960 vxge_debug_entryexit(vdev->level_trace,
2961 "%s:%d", __func__, __LINE__);
2962 if ((new_mtu < VXGE_HW_MIN_MTU) || (new_mtu > VXGE_HW_MAX_MTU)) {
2963 vxge_debug_init(vdev->level_err,
2964 "%s: mtu size is invalid", dev->name);
2968 /* check if device is down already */
2969 if (unlikely(!is_vxge_card_up(vdev))) {
2970 /* just store new value, will use later on open() */
2972 vxge_debug_init(vdev->level_err,
2973 "%s", "device is down on MTU change");
2977 vxge_debug_init(vdev->level_trace,
2978 "trying to apply new MTU %d", new_mtu);
2980 if (vxge_close(dev))
2984 vdev->mtu = new_mtu;
2989 vxge_debug_init(vdev->level_trace,
2990 "%s: MTU changed to %d", vdev->ndev->name, new_mtu);
2992 vxge_debug_entryexit(vdev->level_trace,
2993 "%s:%d Exiting...", __func__, __LINE__);
3000 * @dev: pointer to the device structure
3002 * Updates the device statistics structure. This function updates the device
3003 * statistics structure in the net_device structure and returns a pointer
3006 static struct net_device_stats *
3007 vxge_get_stats(struct net_device *dev)
3009 struct vxgedev *vdev;
3010 struct net_device_stats *net_stats;
3013 vdev = netdev_priv(dev);
3015 net_stats = &vdev->stats.net_stats;
3017 memset(net_stats, 0, sizeof(struct net_device_stats));
3019 for (k = 0; k < vdev->no_of_vpath; k++) {
3020 net_stats->rx_packets += vdev->vpaths[k].ring.stats.rx_frms;
3021 net_stats->rx_bytes += vdev->vpaths[k].ring.stats.rx_bytes;
3022 net_stats->rx_errors += vdev->vpaths[k].ring.stats.rx_errors;
3023 net_stats->multicast += vdev->vpaths[k].ring.stats.rx_mcast;
3024 net_stats->rx_dropped +=
3025 vdev->vpaths[k].ring.stats.rx_dropped;
3027 net_stats->tx_packets += vdev->vpaths[k].fifo.stats.tx_frms;
3028 net_stats->tx_bytes += vdev->vpaths[k].fifo.stats.tx_bytes;
3029 net_stats->tx_errors += vdev->vpaths[k].fifo.stats.tx_errors;
3037 * @dev: Device pointer.
3038 * @ifr: An IOCTL specific structure, that can contain a pointer to
3039 * a proprietary structure used to pass information to the driver.
3040 * @cmd: This is used to distinguish between the different commands that
3041 * can be passed to the IOCTL functions.
3043 * Entry point for the Ioctl.
3045 static int vxge_ioctl(struct net_device *dev, struct ifreq *rq, int cmd)
3052 * @dev: pointer to net device structure
3054 * Watchdog for transmit side.
3055 * This function is triggered if the Tx Queue is stopped
3056 * for a pre-defined amount of time when the Interface is still up.
3059 vxge_tx_watchdog(struct net_device *dev)
3061 struct vxgedev *vdev;
3063 vxge_debug_entryexit(VXGE_TRACE, "%s:%d", __func__, __LINE__);
3065 vdev = (struct vxgedev *)netdev_priv(dev);
3067 vdev->cric_err_event = VXGE_HW_EVENT_RESET_START;
3070 vxge_debug_entryexit(VXGE_TRACE,
3071 "%s:%d Exiting...", __func__, __LINE__);
3075 * vxge_vlan_rx_register
3076 * @dev: net device pointer.
3079 * Vlan group registration
3082 vxge_vlan_rx_register(struct net_device *dev, struct vlan_group *grp)
3084 struct vxgedev *vdev;
3085 struct vxge_vpath *vpath;
3088 enum vxge_hw_status status;
3091 vxge_debug_entryexit(VXGE_TRACE, "%s:%d", __func__, __LINE__);
3093 vdev = (struct vxgedev *)netdev_priv(dev);
3095 vpath = &vdev->vpaths[0];
3096 if ((NULL == grp) && (vpath->is_open)) {
3097 /* Get the first vlan */
3098 status = vxge_hw_vpath_vid_get(vpath->handle, &vid);
3100 while (status == VXGE_HW_OK) {
3102 /* Delete this vlan from the vid table */
3103 for (vp = 0; vp < vdev->no_of_vpath; vp++) {
3104 vpath = &vdev->vpaths[vp];
3105 if (!vpath->is_open)
3108 vxge_hw_vpath_vid_delete(vpath->handle, vid);
3111 /* Get the next vlan to be deleted */
3112 vpath = &vdev->vpaths[0];
3113 status = vxge_hw_vpath_vid_get(vpath->handle, &vid);
3119 for (i = 0; i < vdev->no_of_vpath; i++) {
3120 if (vdev->vpaths[i].is_configured)
3121 vdev->vpaths[i].ring.vlgrp = grp;
3124 vxge_debug_entryexit(VXGE_TRACE,
3125 "%s:%d Exiting...", __func__, __LINE__);
3129 * vxge_vlan_rx_add_vid
3130 * @dev: net device pointer.
3133 * Add the vlan id to the devices vlan id table
3136 vxge_vlan_rx_add_vid(struct net_device *dev, unsigned short vid)
3138 struct vxgedev *vdev;
3139 struct vxge_vpath *vpath;
3142 vdev = (struct vxgedev *)netdev_priv(dev);
3144 /* Add these vlan to the vid table */
3145 for (vp_id = 0; vp_id < vdev->no_of_vpath; vp_id++) {
3146 vpath = &vdev->vpaths[vp_id];
3147 if (!vpath->is_open)
3149 vxge_hw_vpath_vid_add(vpath->handle, vid);
3154 * vxge_vlan_rx_add_vid
3155 * @dev: net device pointer.
3158 * Remove the vlan id from the device's vlan id table
3161 vxge_vlan_rx_kill_vid(struct net_device *dev, unsigned short vid)
3163 struct vxgedev *vdev;
3164 struct vxge_vpath *vpath;
3167 vxge_debug_entryexit(VXGE_TRACE, "%s:%d", __func__, __LINE__);
3169 vdev = (struct vxgedev *)netdev_priv(dev);
3171 vlan_group_set_device(vdev->vlgrp, vid, NULL);
3173 /* Delete this vlan from the vid table */
3174 for (vp_id = 0; vp_id < vdev->no_of_vpath; vp_id++) {
3175 vpath = &vdev->vpaths[vp_id];
3176 if (!vpath->is_open)
3178 vxge_hw_vpath_vid_delete(vpath->handle, vid);
3180 vxge_debug_entryexit(VXGE_TRACE,
3181 "%s:%d Exiting...", __func__, __LINE__);
3184 static const struct net_device_ops vxge_netdev_ops = {
3185 .ndo_open = vxge_open,
3186 .ndo_stop = vxge_close,
3187 .ndo_get_stats = vxge_get_stats,
3188 .ndo_start_xmit = vxge_xmit,
3189 .ndo_validate_addr = eth_validate_addr,
3190 .ndo_set_multicast_list = vxge_set_multicast,
3192 .ndo_do_ioctl = vxge_ioctl,
3194 .ndo_set_mac_address = vxge_set_mac_addr,
3195 .ndo_change_mtu = vxge_change_mtu,
3196 .ndo_vlan_rx_register = vxge_vlan_rx_register,
3197 .ndo_vlan_rx_kill_vid = vxge_vlan_rx_kill_vid,
3198 .ndo_vlan_rx_add_vid = vxge_vlan_rx_add_vid,
3200 .ndo_tx_timeout = vxge_tx_watchdog,
3201 #ifdef CONFIG_NET_POLL_CONTROLLER
3202 .ndo_poll_controller = vxge_netpoll,
3206 int __devinit vxge_device_register(struct __vxge_hw_device *hldev,
3207 struct vxge_config *config,
3208 int high_dma, int no_of_vpath,
3209 struct vxgedev **vdev_out)
3211 struct net_device *ndev;
3212 enum vxge_hw_status status = VXGE_HW_OK;
3213 struct vxgedev *vdev;
3214 int i, ret = 0, no_of_queue = 1;
3218 if (config->tx_steering_type == TX_MULTIQ_STEERING)
3219 no_of_queue = no_of_vpath;
3221 ndev = alloc_etherdev_mq(sizeof(struct vxgedev),
3225 vxge_hw_device_trace_level_get(hldev),
3226 "%s : device allocation failed", __func__);
3231 vxge_debug_entryexit(
3232 vxge_hw_device_trace_level_get(hldev),
3233 "%s: %s:%d Entering...",
3234 ndev->name, __func__, __LINE__);
3236 vdev = netdev_priv(ndev);
3237 memset(vdev, 0, sizeof(struct vxgedev));
3241 vdev->pdev = hldev->pdev;
3242 memcpy(&vdev->config, config, sizeof(struct vxge_config));
3243 vdev->rx_csum = 1; /* Enable Rx CSUM by default. */
3245 SET_NETDEV_DEV(ndev, &vdev->pdev->dev);
3247 ndev->features |= NETIF_F_HW_VLAN_TX | NETIF_F_HW_VLAN_RX |
3248 NETIF_F_HW_VLAN_FILTER;
3249 /* Driver entry points */
3250 ndev->irq = vdev->pdev->irq;
3251 ndev->base_addr = (unsigned long) hldev->bar0;
3253 ndev->netdev_ops = &vxge_netdev_ops;
3255 ndev->watchdog_timeo = VXGE_LL_WATCH_DOG_TIMEOUT;
3257 initialize_ethtool_ops(ndev);
3259 /* Allocate memory for vpath */
3260 vdev->vpaths = kzalloc((sizeof(struct vxge_vpath)) *
3261 no_of_vpath, GFP_KERNEL);
3262 if (!vdev->vpaths) {
3263 vxge_debug_init(VXGE_ERR,
3264 "%s: vpath memory allocation failed",
3270 ndev->features |= NETIF_F_SG;
3272 ndev->features |= NETIF_F_HW_CSUM;
3273 vxge_debug_init(vxge_hw_device_trace_level_get(hldev),
3274 "%s : checksuming enabled", __func__);
3277 ndev->features |= NETIF_F_HIGHDMA;
3278 vxge_debug_init(vxge_hw_device_trace_level_get(hldev),
3279 "%s : using High DMA", __func__);
3282 ndev->features |= NETIF_F_TSO | NETIF_F_TSO6;
3284 if (vdev->config.gro_enable)
3285 ndev->features |= NETIF_F_GRO;
3287 if (vdev->config.tx_steering_type == TX_MULTIQ_STEERING)
3288 ndev->real_num_tx_queues = no_of_vpath;
3291 ndev->features |= NETIF_F_LLTX;
3294 for (i = 0; i < no_of_vpath; i++)
3295 spin_lock_init(&vdev->vpaths[i].fifo.tx_lock);
3297 if (register_netdev(ndev)) {
3298 vxge_debug_init(vxge_hw_device_trace_level_get(hldev),
3299 "%s: %s : device registration failed!",
3300 ndev->name, __func__);
3305 /* Set the factory defined MAC address initially */
3306 ndev->addr_len = ETH_ALEN;
3308 /* Make Link state as off at this point, when the Link change
3309 * interrupt comes the state will be automatically changed to
3312 netif_carrier_off(ndev);
3314 vxge_debug_init(vxge_hw_device_trace_level_get(hldev),
3315 "%s: Ethernet device registered",
3320 /* Resetting the Device stats */
3321 status = vxge_hw_mrpcim_stats_access(
3323 VXGE_HW_STATS_OP_CLEAR_ALL_STATS,
3328 if (status == VXGE_HW_ERR_PRIVILAGED_OPEARATION)
3330 vxge_hw_device_trace_level_get(hldev),
3331 "%s: device stats clear returns"
3332 "VXGE_HW_ERR_PRIVILAGED_OPEARATION", ndev->name);
3334 vxge_debug_entryexit(vxge_hw_device_trace_level_get(hldev),
3335 "%s: %s:%d Exiting...",
3336 ndev->name, __func__, __LINE__);
3340 kfree(vdev->vpaths);
3348 * vxge_device_unregister
3350 * This function will unregister and free network device
3353 vxge_device_unregister(struct __vxge_hw_device *hldev)
3355 struct vxgedev *vdev;
3356 struct net_device *dev;
3358 #if ((VXGE_DEBUG_INIT & VXGE_DEBUG_MASK) || \
3359 (VXGE_DEBUG_ENTRYEXIT & VXGE_DEBUG_MASK))
3364 vdev = netdev_priv(dev);
3365 #if ((VXGE_DEBUG_INIT & VXGE_DEBUG_MASK) || \
3366 (VXGE_DEBUG_ENTRYEXIT & VXGE_DEBUG_MASK))
3367 level_trace = vdev->level_trace;
3369 vxge_debug_entryexit(level_trace,
3370 "%s: %s:%d", vdev->ndev->name, __func__, __LINE__);
3372 memcpy(buf, vdev->ndev->name, IFNAMSIZ);
3374 /* in 2.6 will call stop() if device is up */
3375 unregister_netdev(dev);
3377 flush_scheduled_work();
3379 vxge_debug_init(level_trace, "%s: ethernet device unregistered", buf);
3380 vxge_debug_entryexit(level_trace,
3381 "%s: %s:%d Exiting...", buf, __func__, __LINE__);
3385 * vxge_callback_crit_err
3387 * This function is called by the alarm handler in interrupt context.
3388 * Driver must analyze it based on the event type.
3391 vxge_callback_crit_err(struct __vxge_hw_device *hldev,
3392 enum vxge_hw_event type, u64 vp_id)
3394 struct net_device *dev = hldev->ndev;
3395 struct vxgedev *vdev = (struct vxgedev *)netdev_priv(dev);
3398 vxge_debug_entryexit(vdev->level_trace,
3399 "%s: %s:%d", vdev->ndev->name, __func__, __LINE__);
3401 /* Note: This event type should be used for device wide
3402 * indications only - Serious errors, Slot freeze and critical errors
3404 vdev->cric_err_event = type;
3406 for (vpath_idx = 0; vpath_idx < vdev->no_of_vpath; vpath_idx++)
3407 if (vdev->vpaths[vpath_idx].device_id == vp_id)
3410 if (!test_bit(__VXGE_STATE_RESET_CARD, &vdev->state)) {
3411 if (type == VXGE_HW_EVENT_SLOT_FREEZE) {
3412 vxge_debug_init(VXGE_ERR,
3413 "%s: Slot is frozen", vdev->ndev->name);
3414 } else if (type == VXGE_HW_EVENT_SERR) {
3415 vxge_debug_init(VXGE_ERR,
3416 "%s: Encountered Serious Error",
3418 } else if (type == VXGE_HW_EVENT_CRITICAL_ERR)
3419 vxge_debug_init(VXGE_ERR,
3420 "%s: Encountered Critical Error",
3424 if ((type == VXGE_HW_EVENT_SERR) ||
3425 (type == VXGE_HW_EVENT_SLOT_FREEZE)) {
3426 if (unlikely(vdev->exec_mode))
3427 clear_bit(__VXGE_STATE_CARD_UP, &vdev->state);
3428 } else if (type == VXGE_HW_EVENT_CRITICAL_ERR) {
3429 vxge_hw_device_mask_all(hldev);
3430 if (unlikely(vdev->exec_mode))
3431 clear_bit(__VXGE_STATE_CARD_UP, &vdev->state);
3432 } else if ((type == VXGE_HW_EVENT_FIFO_ERR) ||
3433 (type == VXGE_HW_EVENT_VPATH_ERR)) {
3435 if (unlikely(vdev->exec_mode))
3436 clear_bit(__VXGE_STATE_CARD_UP, &vdev->state);
3438 /* check if this vpath is already set for reset */
3439 if (!test_and_set_bit(vpath_idx, &vdev->vp_reset)) {
3441 /* disable interrupts for this vpath */
3442 vxge_vpath_intr_disable(vdev, vpath_idx);
3444 /* stop the queue for this vpath */
3445 vxge_stop_tx_queue(&vdev->vpaths[vpath_idx].
3451 vxge_debug_entryexit(vdev->level_trace,
3452 "%s: %s:%d Exiting...",
3453 vdev->ndev->name, __func__, __LINE__);
3456 static void verify_bandwidth(void)
3458 int i, band_width, total = 0, equal_priority = 0;
3460 /* 1. If user enters 0 for some fifo, give equal priority to all */
3461 for (i = 0; i < VXGE_HW_MAX_VIRTUAL_PATHS; i++) {
3462 if (bw_percentage[i] == 0) {
3468 if (!equal_priority) {
3469 /* 2. If sum exceeds 100, give equal priority to all */
3470 for (i = 0; i < VXGE_HW_MAX_VIRTUAL_PATHS; i++) {
3471 if (bw_percentage[i] == 0xFF)
3474 total += bw_percentage[i];
3475 if (total > VXGE_HW_VPATH_BANDWIDTH_MAX) {
3482 if (!equal_priority) {
3483 /* Is all the bandwidth consumed? */
3484 if (total < VXGE_HW_VPATH_BANDWIDTH_MAX) {
3485 if (i < VXGE_HW_MAX_VIRTUAL_PATHS) {
3486 /* Split rest of bw equally among next VPs*/
3488 (VXGE_HW_VPATH_BANDWIDTH_MAX - total) /
3489 (VXGE_HW_MAX_VIRTUAL_PATHS - i);
3490 if (band_width < 2) /* min of 2% */
3493 for (; i < VXGE_HW_MAX_VIRTUAL_PATHS;
3499 } else if (i < VXGE_HW_MAX_VIRTUAL_PATHS)
3503 if (equal_priority) {
3504 vxge_debug_init(VXGE_ERR,
3505 "%s: Assigning equal bandwidth to all the vpaths",
3507 bw_percentage[0] = VXGE_HW_VPATH_BANDWIDTH_MAX /
3508 VXGE_HW_MAX_VIRTUAL_PATHS;
3509 for (i = 1; i < VXGE_HW_MAX_VIRTUAL_PATHS; i++)
3510 bw_percentage[i] = bw_percentage[0];
3515 * Vpath configuration
3517 static int __devinit vxge_config_vpaths(
3518 struct vxge_hw_device_config *device_config,
3519 u64 vpath_mask, struct vxge_config *config_param)
3521 int i, no_of_vpaths = 0, default_no_vpath = 0, temp;
3522 u32 txdl_size, txdl_per_memblock;
3524 temp = driver_config->vpath_per_dev;
3525 if ((driver_config->vpath_per_dev == VXGE_USE_DEFAULT) &&
3526 (max_config_dev == VXGE_MAX_CONFIG_DEV)) {
3527 /* No more CPU. Return vpath number as zero.*/
3528 if (driver_config->g_no_cpus == -1)
3531 if (!driver_config->g_no_cpus)
3532 driver_config->g_no_cpus = num_online_cpus();
3534 driver_config->vpath_per_dev = driver_config->g_no_cpus >> 1;
3535 if (!driver_config->vpath_per_dev)
3536 driver_config->vpath_per_dev = 1;
3538 for (i = 0; i < VXGE_HW_MAX_VIRTUAL_PATHS; i++)
3539 if (!vxge_bVALn(vpath_mask, i, 1))
3543 if (default_no_vpath < driver_config->vpath_per_dev)
3544 driver_config->vpath_per_dev = default_no_vpath;
3546 driver_config->g_no_cpus = driver_config->g_no_cpus -
3547 (driver_config->vpath_per_dev * 2);
3548 if (driver_config->g_no_cpus <= 0)
3549 driver_config->g_no_cpus = -1;
3552 if (driver_config->vpath_per_dev == 1) {
3553 vxge_debug_ll_config(VXGE_TRACE,
3554 "%s: Disable tx and rx steering, "
3555 "as single vpath is configured", VXGE_DRIVER_NAME);
3556 config_param->rth_steering = NO_STEERING;
3557 config_param->tx_steering_type = NO_STEERING;
3558 device_config->rth_en = 0;
3561 /* configure bandwidth */
3562 for (i = 0; i < VXGE_HW_MAX_VIRTUAL_PATHS; i++)
3563 device_config->vp_config[i].min_bandwidth = bw_percentage[i];
3565 for (i = 0; i < VXGE_HW_MAX_VIRTUAL_PATHS; i++) {
3566 device_config->vp_config[i].vp_id = i;
3567 device_config->vp_config[i].mtu = VXGE_HW_DEFAULT_MTU;
3568 if (no_of_vpaths < driver_config->vpath_per_dev) {
3569 if (!vxge_bVALn(vpath_mask, i, 1)) {
3570 vxge_debug_ll_config(VXGE_TRACE,
3571 "%s: vpath: %d is not available",
3572 VXGE_DRIVER_NAME, i);
3575 vxge_debug_ll_config(VXGE_TRACE,
3576 "%s: vpath: %d available",
3577 VXGE_DRIVER_NAME, i);
3581 vxge_debug_ll_config(VXGE_TRACE,
3582 "%s: vpath: %d is not configured, "
3583 "max_config_vpath exceeded",
3584 VXGE_DRIVER_NAME, i);
3588 /* Configure Tx fifo's */
3589 device_config->vp_config[i].fifo.enable =
3590 VXGE_HW_FIFO_ENABLE;
3591 device_config->vp_config[i].fifo.max_frags =
3593 device_config->vp_config[i].fifo.memblock_size =
3594 VXGE_HW_MIN_FIFO_MEMBLOCK_SIZE;
3596 txdl_size = device_config->vp_config[i].fifo.max_frags *
3597 sizeof(struct vxge_hw_fifo_txd);
3598 txdl_per_memblock = VXGE_HW_MIN_FIFO_MEMBLOCK_SIZE / txdl_size;
3600 device_config->vp_config[i].fifo.fifo_blocks =
3601 ((VXGE_DEF_FIFO_LENGTH - 1) / txdl_per_memblock) + 1;
3603 device_config->vp_config[i].fifo.intr =
3604 VXGE_HW_FIFO_QUEUE_INTR_DISABLE;
3606 /* Configure tti properties */
3607 device_config->vp_config[i].tti.intr_enable =
3608 VXGE_HW_TIM_INTR_ENABLE;
3610 device_config->vp_config[i].tti.btimer_val =
3611 (VXGE_TTI_BTIMER_VAL * 1000) / 272;
3613 device_config->vp_config[i].tti.timer_ac_en =
3614 VXGE_HW_TIM_TIMER_AC_ENABLE;
3616 /* For msi-x with napi (each vector
3617 has a handler of its own) -
3618 Set CI to OFF for all vpaths */
3619 device_config->vp_config[i].tti.timer_ci_en =
3620 VXGE_HW_TIM_TIMER_CI_DISABLE;
3622 device_config->vp_config[i].tti.timer_ri_en =
3623 VXGE_HW_TIM_TIMER_RI_DISABLE;
3625 device_config->vp_config[i].tti.util_sel =
3626 VXGE_HW_TIM_UTIL_SEL_LEGACY_TX_NET_UTIL;
3628 device_config->vp_config[i].tti.ltimer_val =
3629 (VXGE_TTI_LTIMER_VAL * 1000) / 272;
3631 device_config->vp_config[i].tti.rtimer_val =
3632 (VXGE_TTI_RTIMER_VAL * 1000) / 272;
3634 device_config->vp_config[i].tti.urange_a = TTI_TX_URANGE_A;
3635 device_config->vp_config[i].tti.urange_b = TTI_TX_URANGE_B;
3636 device_config->vp_config[i].tti.urange_c = TTI_TX_URANGE_C;
3637 device_config->vp_config[i].tti.uec_a = TTI_TX_UFC_A;
3638 device_config->vp_config[i].tti.uec_b = TTI_TX_UFC_B;
3639 device_config->vp_config[i].tti.uec_c = TTI_TX_UFC_C;
3640 device_config->vp_config[i].tti.uec_d = TTI_TX_UFC_D;
3642 /* Configure Rx rings */
3643 device_config->vp_config[i].ring.enable =
3644 VXGE_HW_RING_ENABLE;
3646 device_config->vp_config[i].ring.ring_blocks =
3647 VXGE_HW_DEF_RING_BLOCKS;
3648 device_config->vp_config[i].ring.buffer_mode =
3649 VXGE_HW_RING_RXD_BUFFER_MODE_1;
3650 device_config->vp_config[i].ring.rxds_limit =
3651 VXGE_HW_DEF_RING_RXDS_LIMIT;
3652 device_config->vp_config[i].ring.scatter_mode =
3653 VXGE_HW_RING_SCATTER_MODE_A;
3655 /* Configure rti properties */
3656 device_config->vp_config[i].rti.intr_enable =
3657 VXGE_HW_TIM_INTR_ENABLE;
3659 device_config->vp_config[i].rti.btimer_val =
3660 (VXGE_RTI_BTIMER_VAL * 1000)/272;
3662 device_config->vp_config[i].rti.timer_ac_en =
3663 VXGE_HW_TIM_TIMER_AC_ENABLE;
3665 device_config->vp_config[i].rti.timer_ci_en =
3666 VXGE_HW_TIM_TIMER_CI_DISABLE;
3668 device_config->vp_config[i].rti.timer_ri_en =
3669 VXGE_HW_TIM_TIMER_RI_DISABLE;
3671 device_config->vp_config[i].rti.util_sel =
3672 VXGE_HW_TIM_UTIL_SEL_LEGACY_RX_NET_UTIL;
3674 device_config->vp_config[i].rti.urange_a =
3676 device_config->vp_config[i].rti.urange_b =
3678 device_config->vp_config[i].rti.urange_c =
3680 device_config->vp_config[i].rti.uec_a = RTI_RX_UFC_A;
3681 device_config->vp_config[i].rti.uec_b = RTI_RX_UFC_B;
3682 device_config->vp_config[i].rti.uec_c = RTI_RX_UFC_C;
3683 device_config->vp_config[i].rti.uec_d = RTI_RX_UFC_D;
3685 device_config->vp_config[i].rti.rtimer_val =
3686 (VXGE_RTI_RTIMER_VAL * 1000) / 272;
3688 device_config->vp_config[i].rti.ltimer_val =
3689 (VXGE_RTI_LTIMER_VAL * 1000) / 272;
3691 device_config->vp_config[i].rpa_strip_vlan_tag =
3695 driver_config->vpath_per_dev = temp;
3696 return no_of_vpaths;
3699 /* initialize device configuratrions */
3700 static void __devinit vxge_device_config_init(
3701 struct vxge_hw_device_config *device_config,
3704 /* Used for CQRQ/SRQ. */
3705 device_config->dma_blockpool_initial =
3706 VXGE_HW_INITIAL_DMA_BLOCK_POOL_SIZE;
3708 device_config->dma_blockpool_max =
3709 VXGE_HW_MAX_DMA_BLOCK_POOL_SIZE;
3711 if (max_mac_vpath > VXGE_MAX_MAC_ADDR_COUNT)
3712 max_mac_vpath = VXGE_MAX_MAC_ADDR_COUNT;
3714 #ifndef CONFIG_PCI_MSI
3715 vxge_debug_init(VXGE_ERR,
3716 "%s: This Kernel does not support "
3717 "MSI-X. Defaulting to INTA", VXGE_DRIVER_NAME);
3721 /* Configure whether MSI-X or IRQL. */
3722 switch (*intr_type) {
3724 device_config->intr_mode = VXGE_HW_INTR_MODE_IRQLINE;
3728 device_config->intr_mode = VXGE_HW_INTR_MODE_MSIX;
3731 /* Timer period between device poll */
3732 device_config->device_poll_millis = VXGE_TIMER_DELAY;
3734 /* Configure mac based steering. */
3735 device_config->rts_mac_en = addr_learn_en;
3737 /* Configure Vpaths */
3738 device_config->rth_it_type = VXGE_HW_RTH_IT_TYPE_MULTI_IT;
3740 vxge_debug_ll_config(VXGE_TRACE, "%s : Device Config Params ",
3742 vxge_debug_ll_config(VXGE_TRACE, "dma_blockpool_initial : %d",
3743 device_config->dma_blockpool_initial);
3744 vxge_debug_ll_config(VXGE_TRACE, "dma_blockpool_max : %d",
3745 device_config->dma_blockpool_max);
3746 vxge_debug_ll_config(VXGE_TRACE, "intr_mode : %d",
3747 device_config->intr_mode);
3748 vxge_debug_ll_config(VXGE_TRACE, "device_poll_millis : %d",
3749 device_config->device_poll_millis);
3750 vxge_debug_ll_config(VXGE_TRACE, "rts_mac_en : %d",
3751 device_config->rts_mac_en);
3752 vxge_debug_ll_config(VXGE_TRACE, "rth_en : %d",
3753 device_config->rth_en);
3754 vxge_debug_ll_config(VXGE_TRACE, "rth_it_type : %d",
3755 device_config->rth_it_type);
3758 static void __devinit vxge_print_parm(struct vxgedev *vdev, u64 vpath_mask)
3762 vxge_debug_init(VXGE_TRACE,
3763 "%s: %d Vpath(s) opened",
3764 vdev->ndev->name, vdev->no_of_vpath);
3766 switch (vdev->config.intr_type) {
3768 vxge_debug_init(VXGE_TRACE,
3769 "%s: Interrupt type INTA", vdev->ndev->name);
3773 vxge_debug_init(VXGE_TRACE,
3774 "%s: Interrupt type MSI-X", vdev->ndev->name);
3778 if (vdev->config.rth_steering) {
3779 vxge_debug_init(VXGE_TRACE,
3780 "%s: RTH steering enabled for TCP_IPV4",
3783 vxge_debug_init(VXGE_TRACE,
3784 "%s: RTH steering disabled", vdev->ndev->name);
3787 switch (vdev->config.tx_steering_type) {
3789 vxge_debug_init(VXGE_TRACE,
3790 "%s: Tx steering disabled", vdev->ndev->name);
3792 case TX_PRIORITY_STEERING:
3793 vxge_debug_init(VXGE_TRACE,
3794 "%s: Unsupported tx steering option",
3796 vxge_debug_init(VXGE_TRACE,
3797 "%s: Tx steering disabled", vdev->ndev->name);
3798 vdev->config.tx_steering_type = 0;
3800 case TX_VLAN_STEERING:
3801 vxge_debug_init(VXGE_TRACE,
3802 "%s: Unsupported tx steering option",
3804 vxge_debug_init(VXGE_TRACE,
3805 "%s: Tx steering disabled", vdev->ndev->name);
3806 vdev->config.tx_steering_type = 0;
3808 case TX_MULTIQ_STEERING:
3809 vxge_debug_init(VXGE_TRACE,
3810 "%s: Tx multiqueue steering enabled",
3813 case TX_PORT_STEERING:
3814 vxge_debug_init(VXGE_TRACE,
3815 "%s: Tx port steering enabled",
3819 vxge_debug_init(VXGE_ERR,
3820 "%s: Unsupported tx steering type",
3822 vxge_debug_init(VXGE_TRACE,
3823 "%s: Tx steering disabled", vdev->ndev->name);
3824 vdev->config.tx_steering_type = 0;
3827 if (vdev->config.gro_enable) {
3828 vxge_debug_init(VXGE_ERR,
3829 "%s: Generic receive offload enabled",
3832 vxge_debug_init(VXGE_TRACE,
3833 "%s: Generic receive offload disabled",
3836 if (vdev->config.addr_learn_en)
3837 vxge_debug_init(VXGE_TRACE,
3838 "%s: MAC Address learning enabled", vdev->ndev->name);
3840 vxge_debug_init(VXGE_TRACE,
3841 "%s: Rx doorbell mode enabled", vdev->ndev->name);
3843 for (i = 0; i < VXGE_HW_MAX_VIRTUAL_PATHS; i++) {
3844 if (!vxge_bVALn(vpath_mask, i, 1))
3846 vxge_debug_ll_config(VXGE_TRACE,
3847 "%s: MTU size - %d", vdev->ndev->name,
3848 ((struct __vxge_hw_device *)(vdev->devh))->
3849 config.vp_config[i].mtu);
3850 vxge_debug_init(VXGE_TRACE,
3851 "%s: VLAN tag stripping %s", vdev->ndev->name,
3852 ((struct __vxge_hw_device *)(vdev->devh))->
3853 config.vp_config[i].rpa_strip_vlan_tag
3854 ? "Enabled" : "Disabled");
3855 vxge_debug_init(VXGE_TRACE,
3856 "%s: Ring blocks : %d", vdev->ndev->name,
3857 ((struct __vxge_hw_device *)(vdev->devh))->
3858 config.vp_config[i].ring.ring_blocks);
3859 vxge_debug_init(VXGE_TRACE,
3860 "%s: Fifo blocks : %d", vdev->ndev->name,
3861 ((struct __vxge_hw_device *)(vdev->devh))->
3862 config.vp_config[i].fifo.fifo_blocks);
3863 vxge_debug_ll_config(VXGE_TRACE,
3864 "%s: Max frags : %d", vdev->ndev->name,
3865 ((struct __vxge_hw_device *)(vdev->devh))->
3866 config.vp_config[i].fifo.max_frags);
3873 * vxge_pm_suspend - vxge power management suspend entry point
3876 static int vxge_pm_suspend(struct pci_dev *pdev, pm_message_t state)
3881 * vxge_pm_resume - vxge power management resume entry point
3884 static int vxge_pm_resume(struct pci_dev *pdev)
3892 * vxge_io_error_detected - called when PCI error is detected
3893 * @pdev: Pointer to PCI device
3894 * @state: The current pci connection state
3896 * This function is called after a PCI bus error affecting
3897 * this device has been detected.
3899 static pci_ers_result_t vxge_io_error_detected(struct pci_dev *pdev,
3900 pci_channel_state_t state)
3902 struct __vxge_hw_device *hldev =
3903 (struct __vxge_hw_device *) pci_get_drvdata(pdev);
3904 struct net_device *netdev = hldev->ndev;
3906 netif_device_detach(netdev);
3908 if (state == pci_channel_io_perm_failure)
3909 return PCI_ERS_RESULT_DISCONNECT;
3911 if (netif_running(netdev)) {
3912 /* Bring down the card, while avoiding PCI I/O */
3913 do_vxge_close(netdev, 0);
3916 pci_disable_device(pdev);
3918 return PCI_ERS_RESULT_NEED_RESET;
3922 * vxge_io_slot_reset - called after the pci bus has been reset.
3923 * @pdev: Pointer to PCI device
3925 * Restart the card from scratch, as if from a cold-boot.
3926 * At this point, the card has exprienced a hard reset,
3927 * followed by fixups by BIOS, and has its config space
3928 * set up identically to what it was at cold boot.
3930 static pci_ers_result_t vxge_io_slot_reset(struct pci_dev *pdev)
3932 struct __vxge_hw_device *hldev =
3933 (struct __vxge_hw_device *) pci_get_drvdata(pdev);
3934 struct net_device *netdev = hldev->ndev;
3936 struct vxgedev *vdev = netdev_priv(netdev);
3938 if (pci_enable_device(pdev)) {
3939 printk(KERN_ERR "%s: "
3940 "Cannot re-enable device after reset\n",
3942 return PCI_ERS_RESULT_DISCONNECT;
3945 pci_set_master(pdev);
3948 return PCI_ERS_RESULT_RECOVERED;
3952 * vxge_io_resume - called when traffic can start flowing again.
3953 * @pdev: Pointer to PCI device
3955 * This callback is called when the error recovery driver tells
3956 * us that its OK to resume normal operation.
3958 static void vxge_io_resume(struct pci_dev *pdev)
3960 struct __vxge_hw_device *hldev =
3961 (struct __vxge_hw_device *) pci_get_drvdata(pdev);
3962 struct net_device *netdev = hldev->ndev;
3964 if (netif_running(netdev)) {
3965 if (vxge_open(netdev)) {
3966 printk(KERN_ERR "%s: "
3967 "Can't bring device back up after reset\n",
3973 netif_device_attach(netdev);
3976 static inline u32 vxge_get_num_vfs(u64 function_mode)
3978 u32 num_functions = 0;
3980 switch (function_mode) {
3981 case VXGE_HW_FUNCTION_MODE_MULTI_FUNCTION:
3982 case VXGE_HW_FUNCTION_MODE_SRIOV_8:
3985 case VXGE_HW_FUNCTION_MODE_SINGLE_FUNCTION:
3988 case VXGE_HW_FUNCTION_MODE_SRIOV:
3989 case VXGE_HW_FUNCTION_MODE_MRIOV:
3990 case VXGE_HW_FUNCTION_MODE_MULTI_FUNCTION_17:
3993 case VXGE_HW_FUNCTION_MODE_SRIOV_4:
3996 case VXGE_HW_FUNCTION_MODE_MULTI_FUNCTION_2:
3999 case VXGE_HW_FUNCTION_MODE_MRIOV_8:
4000 num_functions = 8; /* TODO */
4003 return num_functions;
4008 * @pdev : structure containing the PCI related information of the device.
4009 * @pre: List of PCI devices supported by the driver listed in vxge_id_table.
4011 * This function is called when a new PCI device gets detected and initializes
4014 * returns 0 on success and negative on failure.
4017 static int __devinit
4018 vxge_probe(struct pci_dev *pdev, const struct pci_device_id *pre)
4020 struct __vxge_hw_device *hldev;
4021 enum vxge_hw_status status;
4025 struct vxgedev *vdev;
4026 struct vxge_config *ll_config = NULL;
4027 struct vxge_hw_device_config *device_config = NULL;
4028 struct vxge_hw_device_attr attr;
4029 int i, j, no_of_vpath = 0, max_vpath_supported = 0;
4031 struct vxge_mac_addrs *entry;
4032 static int bus = -1, device = -1;
4035 enum vxge_hw_status is_privileged;
4039 vxge_debug_entryexit(VXGE_TRACE, "%s:%d", __func__, __LINE__);
4042 /* In SRIOV-17 mode, functions of the same adapter
4043 * can be deployed on different buses */
4044 if ((!pdev->is_virtfn) && ((bus != pdev->bus->number) ||
4045 (device != PCI_SLOT(pdev->devfn))))
4048 bus = pdev->bus->number;
4049 device = PCI_SLOT(pdev->devfn);
4052 if (driver_config->config_dev_cnt &&
4053 (driver_config->config_dev_cnt !=
4054 driver_config->total_dev_cnt))
4055 vxge_debug_init(VXGE_ERR,
4056 "%s: Configured %d of %d devices",
4058 driver_config->config_dev_cnt,
4059 driver_config->total_dev_cnt);
4060 driver_config->config_dev_cnt = 0;
4061 driver_config->total_dev_cnt = 0;
4063 /* Now making the CPU based no of vpath calculation
4064 * applicable for individual functions as well.
4066 driver_config->g_no_cpus = 0;
4067 driver_config->vpath_per_dev = max_config_vpath;
4069 driver_config->total_dev_cnt++;
4070 if (++driver_config->config_dev_cnt > max_config_dev) {
4075 device_config = kzalloc(sizeof(struct vxge_hw_device_config),
4077 if (!device_config) {
4079 vxge_debug_init(VXGE_ERR,
4080 "device_config : malloc failed %s %d",
4081 __FILE__, __LINE__);
4085 ll_config = kzalloc(sizeof(*ll_config), GFP_KERNEL);
4088 vxge_debug_init(VXGE_ERR,
4089 "ll_config : malloc failed %s %d",
4090 __FILE__, __LINE__);
4093 ll_config->tx_steering_type = TX_MULTIQ_STEERING;
4094 ll_config->intr_type = MSI_X;
4095 ll_config->napi_weight = NEW_NAPI_WEIGHT;
4096 ll_config->rth_steering = RTH_STEERING;
4098 /* get the default configuration parameters */
4099 vxge_hw_device_config_default_get(device_config);
4101 /* initialize configuration parameters */
4102 vxge_device_config_init(device_config, &ll_config->intr_type);
4104 ret = pci_enable_device(pdev);
4106 vxge_debug_init(VXGE_ERR,
4107 "%s : can not enable PCI device", __func__);
4111 if (!pci_set_dma_mask(pdev, DMA_BIT_MASK(64))) {
4112 vxge_debug_ll_config(VXGE_TRACE,
4113 "%s : using 64bit DMA", __func__);
4117 if (pci_set_consistent_dma_mask(pdev,
4118 DMA_BIT_MASK(64))) {
4119 vxge_debug_init(VXGE_ERR,
4120 "%s : unable to obtain 64bit DMA for "
4121 "consistent allocations", __func__);
4125 } else if (!pci_set_dma_mask(pdev, DMA_BIT_MASK(32))) {
4126 vxge_debug_ll_config(VXGE_TRACE,
4127 "%s : using 32bit DMA", __func__);
4133 if (pci_request_regions(pdev, VXGE_DRIVER_NAME)) {
4134 vxge_debug_init(VXGE_ERR,
4135 "%s : request regions failed", __func__);
4140 pci_set_master(pdev);
4142 attr.bar0 = pci_ioremap_bar(pdev, 0);
4144 vxge_debug_init(VXGE_ERR,
4145 "%s : cannot remap io memory bar0", __func__);
4149 vxge_debug_ll_config(VXGE_TRACE,
4150 "pci ioremap bar0: %p:0x%llx",
4152 (unsigned long long)pci_resource_start(pdev, 0));
4154 status = vxge_hw_device_hw_info_get(attr.bar0,
4155 &ll_config->device_hw_info);
4156 if (status != VXGE_HW_OK) {
4157 vxge_debug_init(VXGE_ERR,
4158 "%s: Reading of hardware info failed."
4159 "Please try upgrading the firmware.", VXGE_DRIVER_NAME);
4164 if (ll_config->device_hw_info.fw_version.major !=
4165 VXGE_DRIVER_FW_VERSION_MAJOR) {
4166 vxge_debug_init(VXGE_ERR,
4167 "%s: Incorrect firmware version."
4168 "Please upgrade the firmware to version 1.x.x",
4174 vpath_mask = ll_config->device_hw_info.vpath_mask;
4175 if (vpath_mask == 0) {
4176 vxge_debug_ll_config(VXGE_TRACE,
4177 "%s: No vpaths available in device", VXGE_DRIVER_NAME);
4182 vxge_debug_ll_config(VXGE_TRACE,
4183 "%s:%d Vpath mask = %llx", __func__, __LINE__,
4184 (unsigned long long)vpath_mask);
4186 function_mode = ll_config->device_hw_info.function_mode;
4187 host_type = ll_config->device_hw_info.host_type;
4188 is_privileged = __vxge_hw_device_is_privilaged(host_type,
4189 ll_config->device_hw_info.func_id);
4191 /* Check how many vpaths are available */
4192 for (i = 0; i < VXGE_HW_MAX_VIRTUAL_PATHS; i++) {
4193 if (!((vpath_mask) & vxge_mBIT(i)))
4195 max_vpath_supported++;
4199 num_vfs = vxge_get_num_vfs(function_mode) - 1;
4201 /* Enable SRIOV mode, if firmware has SRIOV support and if it is a PF */
4202 if (is_sriov(function_mode) && (max_config_dev > 1) &&
4203 (ll_config->intr_type != INTA) &&
4204 (is_privileged == VXGE_HW_OK)) {
4205 ret = pci_enable_sriov(pdev, ((max_config_dev - 1) < num_vfs)
4206 ? (max_config_dev - 1) : num_vfs);
4208 vxge_debug_ll_config(VXGE_ERR,
4209 "Failed in enabling SRIOV mode: %d\n", ret);
4213 * Configure vpaths and get driver configured number of vpaths
4214 * which is less than or equal to the maximum vpaths per function.
4216 no_of_vpath = vxge_config_vpaths(device_config, vpath_mask, ll_config);
4218 vxge_debug_ll_config(VXGE_ERR,
4219 "%s: No more vpaths to configure", VXGE_DRIVER_NAME);
4224 /* Setting driver callbacks */
4225 attr.uld_callbacks.link_up = vxge_callback_link_up;
4226 attr.uld_callbacks.link_down = vxge_callback_link_down;
4227 attr.uld_callbacks.crit_err = vxge_callback_crit_err;
4229 status = vxge_hw_device_initialize(&hldev, &attr, device_config);
4230 if (status != VXGE_HW_OK) {
4231 vxge_debug_init(VXGE_ERR,
4232 "Failed to initialize device (%d)", status);
4237 /* if FCS stripping is not disabled in MAC fail driver load */
4238 if (vxge_hw_vpath_strip_fcs_check(hldev, vpath_mask) != VXGE_HW_OK) {
4239 vxge_debug_init(VXGE_ERR,
4240 "%s: FCS stripping is not disabled in MAC"
4241 " failing driver load", VXGE_DRIVER_NAME);
4246 vxge_hw_device_debug_set(hldev, VXGE_ERR, VXGE_COMPONENT_LL);
4248 /* set private device info */
4249 pci_set_drvdata(pdev, hldev);
4251 ll_config->gro_enable = VXGE_GRO_ALWAYS_AGGREGATE;
4252 ll_config->fifo_indicate_max_pkts = VXGE_FIFO_INDICATE_MAX_PKTS;
4253 ll_config->addr_learn_en = addr_learn_en;
4254 ll_config->rth_algorithm = RTH_ALG_JENKINS;
4255 ll_config->rth_hash_type_tcpipv4 = VXGE_HW_RING_HASH_TYPE_TCP_IPV4;
4256 ll_config->rth_hash_type_ipv4 = VXGE_HW_RING_HASH_TYPE_NONE;
4257 ll_config->rth_hash_type_tcpipv6 = VXGE_HW_RING_HASH_TYPE_NONE;
4258 ll_config->rth_hash_type_ipv6 = VXGE_HW_RING_HASH_TYPE_NONE;
4259 ll_config->rth_hash_type_tcpipv6ex = VXGE_HW_RING_HASH_TYPE_NONE;
4260 ll_config->rth_hash_type_ipv6ex = VXGE_HW_RING_HASH_TYPE_NONE;
4261 ll_config->rth_bkt_sz = RTH_BUCKET_SIZE;
4262 ll_config->tx_pause_enable = VXGE_PAUSE_CTRL_ENABLE;
4263 ll_config->rx_pause_enable = VXGE_PAUSE_CTRL_ENABLE;
4265 if (vxge_device_register(hldev, ll_config, high_dma, no_of_vpath,
4271 vxge_hw_device_debug_set(hldev, VXGE_TRACE, VXGE_COMPONENT_LL);
4272 VXGE_COPY_DEBUG_INFO_TO_LL(vdev, vxge_hw_device_error_level_get(hldev),
4273 vxge_hw_device_trace_level_get(hldev));
4275 /* set private HW device info */
4276 hldev->ndev = vdev->ndev;
4277 vdev->mtu = VXGE_HW_DEFAULT_MTU;
4278 vdev->bar0 = attr.bar0;
4279 vdev->max_vpath_supported = max_vpath_supported;
4280 vdev->no_of_vpath = no_of_vpath;
4282 /* Virtual Path count */
4283 for (i = 0, j = 0; i < VXGE_HW_MAX_VIRTUAL_PATHS; i++) {
4284 if (!vxge_bVALn(vpath_mask, i, 1))
4286 if (j >= vdev->no_of_vpath)
4289 vdev->vpaths[j].is_configured = 1;
4290 vdev->vpaths[j].device_id = i;
4291 vdev->vpaths[j].fifo.driver_id = j;
4292 vdev->vpaths[j].ring.driver_id = j;
4293 vdev->vpaths[j].vdev = vdev;
4294 vdev->vpaths[j].max_mac_addr_cnt = max_mac_vpath;
4295 memcpy((u8 *)vdev->vpaths[j].macaddr,
4296 ll_config->device_hw_info.mac_addrs[i],
4299 /* Initialize the mac address list header */
4300 INIT_LIST_HEAD(&vdev->vpaths[j].mac_addr_list);
4302 vdev->vpaths[j].mac_addr_cnt = 0;
4303 vdev->vpaths[j].mcast_addr_cnt = 0;
4306 vdev->exec_mode = VXGE_EXEC_MODE_DISABLE;
4307 vdev->max_config_port = max_config_port;
4309 vdev->vlan_tag_strip = vlan_tag_strip;
4311 /* map the hashing selector table to the configured vpaths */
4312 for (i = 0; i < vdev->no_of_vpath; i++)
4313 vdev->vpath_selector[i] = vpath_selector[i];
4315 macaddr = (u8 *)vdev->vpaths[0].macaddr;
4317 ll_config->device_hw_info.serial_number[VXGE_HW_INFO_LEN - 1] = '\0';
4318 ll_config->device_hw_info.product_desc[VXGE_HW_INFO_LEN - 1] = '\0';
4319 ll_config->device_hw_info.part_number[VXGE_HW_INFO_LEN - 1] = '\0';
4321 vxge_debug_init(VXGE_TRACE, "%s: SERIAL NUMBER: %s",
4322 vdev->ndev->name, ll_config->device_hw_info.serial_number);
4324 vxge_debug_init(VXGE_TRACE, "%s: PART NUMBER: %s",
4325 vdev->ndev->name, ll_config->device_hw_info.part_number);
4327 vxge_debug_init(VXGE_TRACE, "%s: Neterion %s Server Adapter",
4328 vdev->ndev->name, ll_config->device_hw_info.product_desc);
4330 vxge_debug_init(VXGE_TRACE, "%s: MAC ADDR: %pM",
4331 vdev->ndev->name, macaddr);
4333 vxge_debug_init(VXGE_TRACE, "%s: Link Width x%d",
4334 vdev->ndev->name, vxge_hw_device_link_width_get(hldev));
4336 vxge_debug_init(VXGE_TRACE,
4337 "%s: Firmware version : %s Date : %s", vdev->ndev->name,
4338 ll_config->device_hw_info.fw_version.version,
4339 ll_config->device_hw_info.fw_date.date);
4342 switch (ll_config->device_hw_info.function_mode) {
4343 case VXGE_HW_FUNCTION_MODE_SINGLE_FUNCTION:
4344 vxge_debug_init(VXGE_TRACE,
4345 "%s: Single Function Mode Enabled", vdev->ndev->name);
4347 case VXGE_HW_FUNCTION_MODE_MULTI_FUNCTION:
4348 vxge_debug_init(VXGE_TRACE,
4349 "%s: Multi Function Mode Enabled", vdev->ndev->name);
4351 case VXGE_HW_FUNCTION_MODE_SRIOV:
4352 vxge_debug_init(VXGE_TRACE,
4353 "%s: Single Root IOV Mode Enabled", vdev->ndev->name);
4355 case VXGE_HW_FUNCTION_MODE_MRIOV:
4356 vxge_debug_init(VXGE_TRACE,
4357 "%s: Multi Root IOV Mode Enabled", vdev->ndev->name);
4362 vxge_print_parm(vdev, vpath_mask);
4364 /* Store the fw version for ethttool option */
4365 strcpy(vdev->fw_version, ll_config->device_hw_info.fw_version.version);
4366 memcpy(vdev->ndev->dev_addr, (u8 *)vdev->vpaths[0].macaddr, ETH_ALEN);
4367 memcpy(vdev->ndev->perm_addr, vdev->ndev->dev_addr, ETH_ALEN);
4369 /* Copy the station mac address to the list */
4370 for (i = 0; i < vdev->no_of_vpath; i++) {
4371 entry = (struct vxge_mac_addrs *)
4372 kzalloc(sizeof(struct vxge_mac_addrs),
4374 if (NULL == entry) {
4375 vxge_debug_init(VXGE_ERR,
4376 "%s: mac_addr_list : memory allocation failed",
4381 macaddr = (u8 *)&entry->macaddr;
4382 memcpy(macaddr, vdev->ndev->dev_addr, ETH_ALEN);
4383 list_add(&entry->item, &vdev->vpaths[i].mac_addr_list);
4384 vdev->vpaths[i].mac_addr_cnt = 1;
4387 kfree(device_config);
4390 * INTA is shared in multi-function mode. This is unlike the INTA
4391 * implementation in MR mode, where each VH has its own INTA message.
4392 * - INTA is masked (disabled) as long as at least one function sets
4393 * its TITAN_MASK_ALL_INT.ALARM bit.
4394 * - INTA is unmasked (enabled) when all enabled functions have cleared
4395 * their own TITAN_MASK_ALL_INT.ALARM bit.
4396 * The TITAN_MASK_ALL_INT ALARM & TRAFFIC bits are cleared on power up.
4397 * Though this driver leaves the top level interrupts unmasked while
4398 * leaving the required module interrupt bits masked on exit, there
4399 * could be a rougue driver around that does not follow this procedure
4400 * resulting in a failure to generate interrupts. The following code is
4401 * present to prevent such a failure.
4404 if (ll_config->device_hw_info.function_mode ==
4405 VXGE_HW_FUNCTION_MODE_MULTI_FUNCTION)
4406 if (vdev->config.intr_type == INTA)
4407 vxge_hw_device_unmask_all(hldev);
4409 vxge_debug_entryexit(VXGE_TRACE, "%s: %s:%d Exiting...",
4410 vdev->ndev->name, __func__, __LINE__);
4412 vxge_hw_device_debug_set(hldev, VXGE_ERR, VXGE_COMPONENT_LL);
4413 VXGE_COPY_DEBUG_INFO_TO_LL(vdev, vxge_hw_device_error_level_get(hldev),
4414 vxge_hw_device_trace_level_get(hldev));
4420 for (i = 0; i < vdev->no_of_vpath; i++)
4421 vxge_free_mac_add_list(&vdev->vpaths[i]);
4423 vxge_device_unregister(hldev);
4425 pci_disable_sriov(pdev);
4426 vxge_hw_device_terminate(hldev);
4430 pci_release_regions(pdev);
4432 pci_disable_device(pdev);
4435 kfree(device_config);
4436 driver_config->config_dev_cnt--;
4437 pci_set_drvdata(pdev, NULL);
4442 * vxge_rem_nic - Free the PCI device
4443 * @pdev: structure containing the PCI related information of the device.
4444 * Description: This function is called by the Pci subsystem to release a
4445 * PCI device and free up all resource held up by the device.
4447 static void __devexit
4448 vxge_remove(struct pci_dev *pdev)
4450 struct __vxge_hw_device *hldev;
4451 struct vxgedev *vdev = NULL;
4452 struct net_device *dev;
4454 #if ((VXGE_DEBUG_INIT & VXGE_DEBUG_MASK) || \
4455 (VXGE_DEBUG_ENTRYEXIT & VXGE_DEBUG_MASK))
4459 hldev = (struct __vxge_hw_device *) pci_get_drvdata(pdev);
4464 vdev = netdev_priv(dev);
4466 #if ((VXGE_DEBUG_INIT & VXGE_DEBUG_MASK) || \
4467 (VXGE_DEBUG_ENTRYEXIT & VXGE_DEBUG_MASK))
4468 level_trace = vdev->level_trace;
4470 vxge_debug_entryexit(level_trace,
4471 "%s:%d", __func__, __LINE__);
4473 vxge_debug_init(level_trace,
4474 "%s : removing PCI device...", __func__);
4475 vxge_device_unregister(hldev);
4477 for (i = 0; i < vdev->no_of_vpath; i++) {
4478 vxge_free_mac_add_list(&vdev->vpaths[i]);
4479 vdev->vpaths[i].mcast_addr_cnt = 0;
4480 vdev->vpaths[i].mac_addr_cnt = 0;
4483 kfree(vdev->vpaths);
4485 iounmap(vdev->bar0);
4487 pci_disable_sriov(pdev);
4489 /* we are safe to free it now */
4492 vxge_debug_init(level_trace,
4493 "%s:%d Device unregistered", __func__, __LINE__);
4495 vxge_hw_device_terminate(hldev);
4497 pci_disable_device(pdev);
4498 pci_release_regions(pdev);
4499 pci_set_drvdata(pdev, NULL);
4500 vxge_debug_entryexit(level_trace,
4501 "%s:%d Exiting...", __func__, __LINE__);
4504 static struct pci_error_handlers vxge_err_handler = {
4505 .error_detected = vxge_io_error_detected,
4506 .slot_reset = vxge_io_slot_reset,
4507 .resume = vxge_io_resume,
4510 static struct pci_driver vxge_driver = {
4511 .name = VXGE_DRIVER_NAME,
4512 .id_table = vxge_id_table,
4513 .probe = vxge_probe,
4514 .remove = __devexit_p(vxge_remove),
4516 .suspend = vxge_pm_suspend,
4517 .resume = vxge_pm_resume,
4519 .err_handler = &vxge_err_handler,
4527 snprintf(version, 32, "%s", DRV_VERSION);
4529 printk(KERN_INFO "%s: Copyright(c) 2002-2009 Neterion Inc\n",
4531 printk(KERN_INFO "%s: Driver version: %s\n",
4532 VXGE_DRIVER_NAME, version);
4536 driver_config = kzalloc(sizeof(struct vxge_drv_config), GFP_KERNEL);
4540 ret = pci_register_driver(&vxge_driver);
4542 if (driver_config->config_dev_cnt &&
4543 (driver_config->config_dev_cnt != driver_config->total_dev_cnt))
4544 vxge_debug_init(VXGE_ERR,
4545 "%s: Configured %d of %d devices",
4546 VXGE_DRIVER_NAME, driver_config->config_dev_cnt,
4547 driver_config->total_dev_cnt);
4550 kfree(driver_config);
4558 pci_unregister_driver(&vxge_driver);
4559 kfree(driver_config);
4561 module_init(vxge_starter);
4562 module_exit(vxge_closer);