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/tcp.h>
48 #include <linux/netdevice.h>
49 #include <linux/etherdevice.h>
50 #include "vxge-main.h"
53 MODULE_LICENSE("Dual BSD/GPL");
54 MODULE_DESCRIPTION("Neterion's X3100 Series 10GbE PCIe I/O"
55 "Virtualized Server Adapter");
57 static struct pci_device_id vxge_id_table
[] __devinitdata
= {
58 {PCI_VENDOR_ID_S2IO
, PCI_DEVICE_ID_TITAN_WIN
, PCI_ANY_ID
,
60 {PCI_VENDOR_ID_S2IO
, PCI_DEVICE_ID_TITAN_UNI
, PCI_ANY_ID
,
65 MODULE_DEVICE_TABLE(pci
, vxge_id_table
);
67 VXGE_MODULE_PARAM_INT(vlan_tag_strip
, VXGE_HW_VPATH_RPA_STRIP_VLAN_TAG_ENABLE
);
68 VXGE_MODULE_PARAM_INT(addr_learn_en
, VXGE_HW_MAC_ADDR_LEARN_DEFAULT
);
69 VXGE_MODULE_PARAM_INT(max_config_port
, VXGE_MAX_CONFIG_PORT
);
70 VXGE_MODULE_PARAM_INT(max_config_vpath
, VXGE_USE_DEFAULT
);
71 VXGE_MODULE_PARAM_INT(max_mac_vpath
, VXGE_MAX_MAC_ADDR_COUNT
);
72 VXGE_MODULE_PARAM_INT(max_config_dev
, VXGE_MAX_CONFIG_DEV
);
74 static u16 vpath_selector
[VXGE_HW_MAX_VIRTUAL_PATHS
] =
75 {0, 1, 3, 3, 7, 7, 7, 7, 15, 15, 15, 15, 15, 15, 15, 15, 31};
76 static unsigned int bw_percentage
[VXGE_HW_MAX_VIRTUAL_PATHS
] =
77 {[0 ...(VXGE_HW_MAX_VIRTUAL_PATHS
- 1)] = 0xFF};
78 module_param_array(bw_percentage
, uint
, NULL
, 0);
80 static struct vxge_drv_config
*driver_config
;
82 static inline int is_vxge_card_up(struct vxgedev
*vdev
)
84 return test_bit(__VXGE_STATE_CARD_UP
, &vdev
->state
);
87 static inline void VXGE_COMPLETE_VPATH_TX(struct vxge_fifo
*fifo
)
89 unsigned long flags
= 0;
90 struct sk_buff
*skb_ptr
= NULL
;
91 struct sk_buff
**temp
, *head
, *skb
;
93 if (spin_trylock_irqsave(&fifo
->tx_lock
, flags
)) {
94 vxge_hw_vpath_poll_tx(fifo
->handle
, (void **)&skb_ptr
);
95 spin_unlock_irqrestore(&fifo
->tx_lock
, flags
);
101 temp
= (struct sk_buff
**)&skb
->cb
;
104 dev_kfree_skb_irq(skb
);
108 static inline void VXGE_COMPLETE_ALL_TX(struct vxgedev
*vdev
)
112 /* Complete all transmits */
113 for (i
= 0; i
< vdev
->no_of_vpath
; i
++)
114 VXGE_COMPLETE_VPATH_TX(&vdev
->vpaths
[i
].fifo
);
117 static inline void VXGE_COMPLETE_ALL_RX(struct vxgedev
*vdev
)
120 struct vxge_ring
*ring
;
122 /* Complete all receives*/
123 for (i
= 0; i
< vdev
->no_of_vpath
; i
++) {
124 ring
= &vdev
->vpaths
[i
].ring
;
125 vxge_hw_vpath_poll_rx(ring
->handle
);
130 * MultiQ manipulation helper functions
132 void vxge_stop_all_tx_queue(struct vxgedev
*vdev
)
135 struct net_device
*dev
= vdev
->ndev
;
137 if (vdev
->config
.tx_steering_type
!= TX_MULTIQ_STEERING
) {
138 for (i
= 0; i
< vdev
->no_of_vpath
; i
++)
139 vdev
->vpaths
[i
].fifo
.queue_state
= VPATH_QUEUE_STOP
;
141 netif_tx_stop_all_queues(dev
);
144 void vxge_stop_tx_queue(struct vxge_fifo
*fifo
)
146 struct net_device
*dev
= fifo
->ndev
;
148 struct netdev_queue
*txq
= NULL
;
149 if (fifo
->tx_steering_type
== TX_MULTIQ_STEERING
)
150 txq
= netdev_get_tx_queue(dev
, fifo
->driver_id
);
152 txq
= netdev_get_tx_queue(dev
, 0);
153 fifo
->queue_state
= VPATH_QUEUE_STOP
;
156 netif_tx_stop_queue(txq
);
159 void vxge_start_all_tx_queue(struct vxgedev
*vdev
)
162 struct net_device
*dev
= vdev
->ndev
;
164 if (vdev
->config
.tx_steering_type
!= TX_MULTIQ_STEERING
) {
165 for (i
= 0; i
< vdev
->no_of_vpath
; i
++)
166 vdev
->vpaths
[i
].fifo
.queue_state
= VPATH_QUEUE_START
;
168 netif_tx_start_all_queues(dev
);
171 static void vxge_wake_all_tx_queue(struct vxgedev
*vdev
)
174 struct net_device
*dev
= vdev
->ndev
;
176 if (vdev
->config
.tx_steering_type
!= TX_MULTIQ_STEERING
) {
177 for (i
= 0; i
< vdev
->no_of_vpath
; i
++)
178 vdev
->vpaths
[i
].fifo
.queue_state
= VPATH_QUEUE_START
;
180 netif_tx_wake_all_queues(dev
);
183 void vxge_wake_tx_queue(struct vxge_fifo
*fifo
, struct sk_buff
*skb
)
185 struct net_device
*dev
= fifo
->ndev
;
187 int vpath_no
= fifo
->driver_id
;
188 struct netdev_queue
*txq
= NULL
;
189 if (fifo
->tx_steering_type
== TX_MULTIQ_STEERING
) {
190 txq
= netdev_get_tx_queue(dev
, vpath_no
);
191 if (netif_tx_queue_stopped(txq
))
192 netif_tx_wake_queue(txq
);
194 txq
= netdev_get_tx_queue(dev
, 0);
195 if (fifo
->queue_state
== VPATH_QUEUE_STOP
)
196 if (netif_tx_queue_stopped(txq
)) {
197 fifo
->queue_state
= VPATH_QUEUE_START
;
198 netif_tx_wake_queue(txq
);
204 * vxge_callback_link_up
206 * This function is called during interrupt context to notify link up state
210 vxge_callback_link_up(struct __vxge_hw_device
*hldev
)
212 struct net_device
*dev
= hldev
->ndev
;
213 struct vxgedev
*vdev
= (struct vxgedev
*)netdev_priv(dev
);
215 vxge_debug_entryexit(VXGE_TRACE
, "%s: %s:%d",
216 vdev
->ndev
->name
, __func__
, __LINE__
);
217 printk(KERN_NOTICE
"%s: Link Up\n", vdev
->ndev
->name
);
218 vdev
->stats
.link_up
++;
220 netif_carrier_on(vdev
->ndev
);
221 vxge_wake_all_tx_queue(vdev
);
223 vxge_debug_entryexit(VXGE_TRACE
,
224 "%s: %s:%d Exiting...", vdev
->ndev
->name
, __func__
, __LINE__
);
228 * vxge_callback_link_down
230 * This function is called during interrupt context to notify link down state
234 vxge_callback_link_down(struct __vxge_hw_device
*hldev
)
236 struct net_device
*dev
= hldev
->ndev
;
237 struct vxgedev
*vdev
= (struct vxgedev
*)netdev_priv(dev
);
239 vxge_debug_entryexit(VXGE_TRACE
,
240 "%s: %s:%d", vdev
->ndev
->name
, __func__
, __LINE__
);
241 printk(KERN_NOTICE
"%s: Link Down\n", vdev
->ndev
->name
);
243 vdev
->stats
.link_down
++;
244 netif_carrier_off(vdev
->ndev
);
245 vxge_stop_all_tx_queue(vdev
);
247 vxge_debug_entryexit(VXGE_TRACE
,
248 "%s: %s:%d Exiting...", vdev
->ndev
->name
, __func__
, __LINE__
);
256 static struct sk_buff
*
257 vxge_rx_alloc(void *dtrh
, struct vxge_ring
*ring
, const int skb_size
)
259 struct net_device
*dev
;
261 struct vxge_rx_priv
*rx_priv
;
264 vxge_debug_entryexit(VXGE_TRACE
, "%s: %s:%d",
265 ring
->ndev
->name
, __func__
, __LINE__
);
267 rx_priv
= vxge_hw_ring_rxd_private_get(dtrh
);
269 /* try to allocate skb first. this one may fail */
270 skb
= netdev_alloc_skb(dev
, skb_size
+
271 VXGE_HW_HEADER_ETHERNET_II_802_3_ALIGN
);
273 vxge_debug_mem(VXGE_ERR
,
274 "%s: out of memory to allocate SKB", dev
->name
);
275 ring
->stats
.skb_alloc_fail
++;
279 vxge_debug_mem(VXGE_TRACE
,
280 "%s: %s:%d Skb : 0x%p", ring
->ndev
->name
,
281 __func__
, __LINE__
, skb
);
283 skb_reserve(skb
, VXGE_HW_HEADER_ETHERNET_II_802_3_ALIGN
);
286 rx_priv
->data_size
= skb_size
;
287 vxge_debug_entryexit(VXGE_TRACE
,
288 "%s: %s:%d Exiting...", ring
->ndev
->name
, __func__
, __LINE__
);
296 static int vxge_rx_map(void *dtrh
, struct vxge_ring
*ring
)
298 struct vxge_rx_priv
*rx_priv
;
301 vxge_debug_entryexit(VXGE_TRACE
, "%s: %s:%d",
302 ring
->ndev
->name
, __func__
, __LINE__
);
303 rx_priv
= vxge_hw_ring_rxd_private_get(dtrh
);
305 dma_addr
= pci_map_single(ring
->pdev
, rx_priv
->skb
->data
,
306 rx_priv
->data_size
, PCI_DMA_FROMDEVICE
);
309 ring
->stats
.pci_map_fail
++;
312 vxge_debug_mem(VXGE_TRACE
,
313 "%s: %s:%d 1 buffer mode dma_addr = 0x%llx",
314 ring
->ndev
->name
, __func__
, __LINE__
,
315 (unsigned long long)dma_addr
);
316 vxge_hw_ring_rxd_1b_set(dtrh
, dma_addr
, rx_priv
->data_size
);
318 rx_priv
->data_dma
= dma_addr
;
319 vxge_debug_entryexit(VXGE_TRACE
,
320 "%s: %s:%d Exiting...", ring
->ndev
->name
, __func__
, __LINE__
);
326 * vxge_rx_initial_replenish
327 * Allocation of RxD as an initial replenish procedure.
329 static enum vxge_hw_status
330 vxge_rx_initial_replenish(void *dtrh
, void *userdata
)
332 struct vxge_ring
*ring
= (struct vxge_ring
*)userdata
;
333 struct vxge_rx_priv
*rx_priv
;
335 vxge_debug_entryexit(VXGE_TRACE
, "%s: %s:%d",
336 ring
->ndev
->name
, __func__
, __LINE__
);
337 if (vxge_rx_alloc(dtrh
, ring
,
338 VXGE_LL_MAX_FRAME_SIZE(ring
->ndev
)) == NULL
)
341 if (vxge_rx_map(dtrh
, ring
)) {
342 rx_priv
= vxge_hw_ring_rxd_private_get(dtrh
);
343 dev_kfree_skb(rx_priv
->skb
);
347 vxge_debug_entryexit(VXGE_TRACE
,
348 "%s: %s:%d Exiting...", ring
->ndev
->name
, __func__
, __LINE__
);
354 vxge_rx_complete(struct vxge_ring
*ring
, struct sk_buff
*skb
, u16 vlan
,
355 int pkt_length
, struct vxge_hw_ring_rxd_info
*ext_info
)
358 vxge_debug_entryexit(VXGE_TRACE
, "%s: %s:%d",
359 ring
->ndev
->name
, __func__
, __LINE__
);
360 skb_record_rx_queue(skb
, ring
->driver_id
);
361 skb
->protocol
= eth_type_trans(skb
, ring
->ndev
);
363 ring
->stats
.rx_frms
++;
364 ring
->stats
.rx_bytes
+= pkt_length
;
366 if (skb
->pkt_type
== PACKET_MULTICAST
)
367 ring
->stats
.rx_mcast
++;
369 vxge_debug_rx(VXGE_TRACE
,
370 "%s: %s:%d skb protocol = %d",
371 ring
->ndev
->name
, __func__
, __LINE__
, skb
->protocol
);
373 if (ring
->gro_enable
) {
374 if (ring
->vlgrp
&& ext_info
->vlan
&&
375 (ring
->vlan_tag_strip
==
376 VXGE_HW_VPATH_RPA_STRIP_VLAN_TAG_ENABLE
))
377 vlan_gro_receive(&ring
->napi
, ring
->vlgrp
,
378 ext_info
->vlan
, skb
);
380 napi_gro_receive(&ring
->napi
, skb
);
382 if (ring
->vlgrp
&& vlan
&&
383 (ring
->vlan_tag_strip
==
384 VXGE_HW_VPATH_RPA_STRIP_VLAN_TAG_ENABLE
))
385 vlan_hwaccel_receive_skb(skb
, ring
->vlgrp
, vlan
);
387 netif_receive_skb(skb
);
389 vxge_debug_entryexit(VXGE_TRACE
,
390 "%s: %s:%d Exiting...", ring
->ndev
->name
, __func__
, __LINE__
);
393 static inline void vxge_re_pre_post(void *dtr
, struct vxge_ring
*ring
,
394 struct vxge_rx_priv
*rx_priv
)
396 pci_dma_sync_single_for_device(ring
->pdev
,
397 rx_priv
->data_dma
, rx_priv
->data_size
, PCI_DMA_FROMDEVICE
);
399 vxge_hw_ring_rxd_1b_set(dtr
, rx_priv
->data_dma
, rx_priv
->data_size
);
400 vxge_hw_ring_rxd_pre_post(ring
->handle
, dtr
);
403 static inline void vxge_post(int *dtr_cnt
, void **first_dtr
,
404 void *post_dtr
, struct __vxge_hw_ring
*ringh
)
406 int dtr_count
= *dtr_cnt
;
407 if ((*dtr_cnt
% VXGE_HW_RXSYNC_FREQ_CNT
) == 0) {
409 vxge_hw_ring_rxd_post_post_wmb(ringh
, *first_dtr
);
410 *first_dtr
= post_dtr
;
412 vxge_hw_ring_rxd_post_post(ringh
, post_dtr
);
414 *dtr_cnt
= dtr_count
;
420 * If the interrupt is because of a received frame or if the receive ring
421 * contains fresh as yet un-processed frames, this function is called.
424 vxge_rx_1b_compl(struct __vxge_hw_ring
*ringh
, void *dtr
,
425 u8 t_code
, void *userdata
)
427 struct vxge_ring
*ring
= (struct vxge_ring
*)userdata
;
428 struct net_device
*dev
= ring
->ndev
;
429 unsigned int dma_sizes
;
430 void *first_dtr
= NULL
;
436 struct vxge_rx_priv
*rx_priv
;
437 struct vxge_hw_ring_rxd_info ext_info
;
438 vxge_debug_entryexit(VXGE_TRACE
, "%s: %s:%d",
439 ring
->ndev
->name
, __func__
, __LINE__
);
440 ring
->pkts_processed
= 0;
442 vxge_hw_ring_replenish(ringh
, 0);
445 rx_priv
= vxge_hw_ring_rxd_private_get(dtr
);
447 data_size
= rx_priv
->data_size
;
448 data_dma
= rx_priv
->data_dma
;
450 vxge_debug_rx(VXGE_TRACE
,
451 "%s: %s:%d skb = 0x%p",
452 ring
->ndev
->name
, __func__
, __LINE__
, skb
);
454 vxge_hw_ring_rxd_1b_get(ringh
, dtr
, &dma_sizes
);
455 pkt_length
= dma_sizes
;
457 vxge_debug_rx(VXGE_TRACE
,
458 "%s: %s:%d Packet Length = %d",
459 ring
->ndev
->name
, __func__
, __LINE__
, pkt_length
);
461 vxge_hw_ring_rxd_1b_info_get(ringh
, dtr
, &ext_info
);
463 /* check skb validity */
466 prefetch((char *)skb
+ L1_CACHE_BYTES
);
467 if (unlikely(t_code
)) {
469 if (vxge_hw_ring_handle_tcode(ringh
, dtr
, t_code
) !=
472 ring
->stats
.rx_errors
++;
473 vxge_debug_rx(VXGE_TRACE
,
474 "%s: %s :%d Rx T_code is %d",
475 ring
->ndev
->name
, __func__
,
478 /* If the t_code is not supported and if the
479 * t_code is other than 0x5 (unparseable packet
480 * such as unknown UPV6 header), Drop it !!!
482 vxge_re_pre_post(dtr
, ring
, rx_priv
);
484 vxge_post(&dtr_cnt
, &first_dtr
, dtr
, ringh
);
485 ring
->stats
.rx_dropped
++;
490 if (pkt_length
> VXGE_LL_RX_COPY_THRESHOLD
) {
492 if (vxge_rx_alloc(dtr
, ring
, data_size
) != NULL
) {
494 if (!vxge_rx_map(dtr
, ring
)) {
495 skb_put(skb
, pkt_length
);
497 pci_unmap_single(ring
->pdev
, data_dma
,
498 data_size
, PCI_DMA_FROMDEVICE
);
500 vxge_hw_ring_rxd_pre_post(ringh
, dtr
);
501 vxge_post(&dtr_cnt
, &first_dtr
, dtr
,
504 dev_kfree_skb(rx_priv
->skb
);
506 rx_priv
->data_size
= data_size
;
507 vxge_re_pre_post(dtr
, ring
, rx_priv
);
509 vxge_post(&dtr_cnt
, &first_dtr
, dtr
,
511 ring
->stats
.rx_dropped
++;
515 vxge_re_pre_post(dtr
, ring
, rx_priv
);
517 vxge_post(&dtr_cnt
, &first_dtr
, dtr
, ringh
);
518 ring
->stats
.rx_dropped
++;
522 struct sk_buff
*skb_up
;
524 skb_up
= netdev_alloc_skb(dev
, pkt_length
+
525 VXGE_HW_HEADER_ETHERNET_II_802_3_ALIGN
);
526 if (skb_up
!= NULL
) {
528 VXGE_HW_HEADER_ETHERNET_II_802_3_ALIGN
);
530 pci_dma_sync_single_for_cpu(ring
->pdev
,
534 vxge_debug_mem(VXGE_TRACE
,
535 "%s: %s:%d skb_up = %p",
536 ring
->ndev
->name
, __func__
,
538 memcpy(skb_up
->data
, skb
->data
, pkt_length
);
540 vxge_re_pre_post(dtr
, ring
, rx_priv
);
542 vxge_post(&dtr_cnt
, &first_dtr
, dtr
,
544 /* will netif_rx small SKB instead */
546 skb_put(skb
, pkt_length
);
548 vxge_re_pre_post(dtr
, ring
, rx_priv
);
550 vxge_post(&dtr_cnt
, &first_dtr
, dtr
, ringh
);
551 vxge_debug_rx(VXGE_ERR
,
552 "%s: vxge_rx_1b_compl: out of "
553 "memory", dev
->name
);
554 ring
->stats
.skb_alloc_fail
++;
559 if ((ext_info
.proto
& VXGE_HW_FRAME_PROTO_TCP_OR_UDP
) &&
560 !(ext_info
.proto
& VXGE_HW_FRAME_PROTO_IP_FRAG
) &&
561 ring
->rx_csum
&& /* Offload Rx side CSUM */
562 ext_info
.l3_cksum
== VXGE_HW_L3_CKSUM_OK
&&
563 ext_info
.l4_cksum
== VXGE_HW_L4_CKSUM_OK
)
564 skb
->ip_summed
= CHECKSUM_UNNECESSARY
;
566 skb
->ip_summed
= CHECKSUM_NONE
;
568 vxge_rx_complete(ring
, skb
, ext_info
.vlan
,
569 pkt_length
, &ext_info
);
572 ring
->pkts_processed
++;
576 } while (vxge_hw_ring_rxd_next_completed(ringh
, &dtr
,
577 &t_code
) == VXGE_HW_OK
);
580 vxge_hw_ring_rxd_post_post_wmb(ringh
, first_dtr
);
582 dev
->last_rx
= jiffies
;
584 vxge_debug_entryexit(VXGE_TRACE
,
593 * If an interrupt was raised to indicate DMA complete of the Tx packet,
594 * this function is called. It identifies the last TxD whose buffer was
595 * freed and frees all skbs whose data have already DMA'ed into the NICs
599 vxge_xmit_compl(struct __vxge_hw_fifo
*fifo_hw
, void *dtr
,
600 enum vxge_hw_fifo_tcode t_code
, void *userdata
,
603 struct vxge_fifo
*fifo
= (struct vxge_fifo
*)userdata
;
604 struct sk_buff
*skb
, *head
= NULL
;
605 struct sk_buff
**temp
;
608 vxge_debug_entryexit(VXGE_TRACE
,
609 "%s:%d Entered....", __func__
, __LINE__
);
615 struct vxge_tx_priv
*txd_priv
=
616 vxge_hw_fifo_txdl_private_get(dtr
);
619 frg_cnt
= skb_shinfo(skb
)->nr_frags
;
620 frag
= &skb_shinfo(skb
)->frags
[0];
622 vxge_debug_tx(VXGE_TRACE
,
623 "%s: %s:%d fifo_hw = %p dtr = %p "
624 "tcode = 0x%x", fifo
->ndev
->name
, __func__
,
625 __LINE__
, fifo_hw
, dtr
, t_code
);
626 /* check skb validity */
628 vxge_debug_tx(VXGE_TRACE
,
629 "%s: %s:%d skb = %p itxd_priv = %p frg_cnt = %d",
630 fifo
->ndev
->name
, __func__
, __LINE__
,
631 skb
, txd_priv
, frg_cnt
);
632 if (unlikely(t_code
)) {
633 fifo
->stats
.tx_errors
++;
634 vxge_debug_tx(VXGE_ERR
,
635 "%s: tx: dtr %p completed due to "
636 "error t_code %01x", fifo
->ndev
->name
,
638 vxge_hw_fifo_handle_tcode(fifo_hw
, dtr
, t_code
);
641 /* for unfragmented skb */
642 pci_unmap_single(fifo
->pdev
, txd_priv
->dma_buffers
[i
++],
643 skb_headlen(skb
), PCI_DMA_TODEVICE
);
645 for (j
= 0; j
< frg_cnt
; j
++) {
646 pci_unmap_page(fifo
->pdev
,
647 txd_priv
->dma_buffers
[i
++],
648 frag
->size
, PCI_DMA_TODEVICE
);
652 vxge_hw_fifo_txdl_free(fifo_hw
, dtr
);
654 /* Updating the statistics block */
655 fifo
->stats
.tx_frms
++;
656 fifo
->stats
.tx_bytes
+= skb
->len
;
658 temp
= (struct sk_buff
**)&skb
->cb
;
663 if (pkt_cnt
> fifo
->indicate_max_pkts
)
666 } while (vxge_hw_fifo_txdl_next_completed(fifo_hw
,
667 &dtr
, &t_code
) == VXGE_HW_OK
);
669 vxge_wake_tx_queue(fifo
, skb
);
672 *skb_ptr
= (void *) head
;
674 vxge_debug_entryexit(VXGE_TRACE
,
675 "%s: %s:%d Exiting...",
676 fifo
->ndev
->name
, __func__
, __LINE__
);
680 /* select a vpath to trasmit the packet */
681 static u32
vxge_get_vpath_no(struct vxgedev
*vdev
, struct sk_buff
*skb
,
684 u16 queue_len
, counter
= 0;
685 if (skb
->protocol
== htons(ETH_P_IP
)) {
691 if ((ip
->frag_off
& htons(IP_OFFSET
|IP_MF
)) == 0) {
692 th
= (struct tcphdr
*)(((unsigned char *)ip
) +
695 queue_len
= vdev
->no_of_vpath
;
696 counter
= (ntohs(th
->source
) +
698 vdev
->vpath_selector
[queue_len
- 1];
699 if (counter
>= queue_len
)
700 counter
= queue_len
- 1;
702 if (ip
->protocol
== IPPROTO_UDP
) {
712 static enum vxge_hw_status
vxge_search_mac_addr_in_list(
713 struct vxge_vpath
*vpath
, u64 del_mac
)
715 struct list_head
*entry
, *next
;
716 list_for_each_safe(entry
, next
, &vpath
->mac_addr_list
) {
717 if (((struct vxge_mac_addrs
*)entry
)->macaddr
== del_mac
)
723 static int vxge_learn_mac(struct vxgedev
*vdev
, u8
*mac_header
)
725 struct macInfo mac_info
;
726 u8
*mac_address
= NULL
;
727 u64 mac_addr
= 0, vpath_vector
= 0;
729 enum vxge_hw_status status
= VXGE_HW_OK
;
730 struct vxge_vpath
*vpath
= NULL
;
731 struct __vxge_hw_device
*hldev
;
733 hldev
= (struct __vxge_hw_device
*) pci_get_drvdata(vdev
->pdev
);
735 mac_address
= (u8
*)&mac_addr
;
736 memcpy(mac_address
, mac_header
, ETH_ALEN
);
738 /* Is this mac address already in the list? */
739 for (vpath_idx
= 0; vpath_idx
< vdev
->no_of_vpath
; vpath_idx
++) {
740 vpath
= &vdev
->vpaths
[vpath_idx
];
741 if (vxge_search_mac_addr_in_list(vpath
, mac_addr
))
745 memset(&mac_info
, 0, sizeof(struct macInfo
));
746 memcpy(mac_info
.macaddr
, mac_header
, ETH_ALEN
);
748 /* Any vpath has room to add mac address to its da table? */
749 for (vpath_idx
= 0; vpath_idx
< vdev
->no_of_vpath
; vpath_idx
++) {
750 vpath
= &vdev
->vpaths
[vpath_idx
];
751 if (vpath
->mac_addr_cnt
< vpath
->max_mac_addr_cnt
) {
752 /* Add this mac address to this vpath */
753 mac_info
.vpath_no
= vpath_idx
;
754 mac_info
.state
= VXGE_LL_MAC_ADDR_IN_DA_TABLE
;
755 status
= vxge_add_mac_addr(vdev
, &mac_info
);
756 if (status
!= VXGE_HW_OK
)
762 mac_info
.state
= VXGE_LL_MAC_ADDR_IN_LIST
;
764 mac_info
.vpath_no
= vpath_idx
;
765 /* Is the first vpath already selected as catch-basin ? */
766 vpath
= &vdev
->vpaths
[vpath_idx
];
767 if (vpath
->mac_addr_cnt
> vpath
->max_mac_addr_cnt
) {
768 /* Add this mac address to this vpath */
769 if (FALSE
== vxge_mac_list_add(vpath
, &mac_info
))
774 /* Select first vpath as catch-basin */
775 vpath_vector
= vxge_mBIT(vpath
->device_id
);
776 status
= vxge_hw_mgmt_reg_write(vpath
->vdev
->devh
,
777 vxge_hw_mgmt_reg_type_mrpcim
,
780 struct vxge_hw_mrpcim_reg
,
783 if (status
!= VXGE_HW_OK
) {
784 vxge_debug_tx(VXGE_ERR
,
785 "%s: Unable to set the vpath-%d in catch-basin mode",
786 VXGE_DRIVER_NAME
, vpath
->device_id
);
790 if (FALSE
== vxge_mac_list_add(vpath
, &mac_info
))
798 * @skb : the socket buffer containing the Tx data.
799 * @dev : device pointer.
801 * This function is the Tx entry point of the driver. Neterion NIC supports
802 * certain protocol assist features on Tx side, namely CSO, S/G, LSO.
803 * NOTE: when device cant queue the pkt, just the trans_start variable will
807 vxge_xmit(struct sk_buff
*skb
, struct net_device
*dev
)
809 struct vxge_fifo
*fifo
= NULL
;
812 struct vxgedev
*vdev
= NULL
;
813 enum vxge_hw_status status
;
814 int frg_cnt
, first_frg_len
;
816 int i
= 0, j
= 0, avail
;
818 struct vxge_tx_priv
*txdl_priv
= NULL
;
819 struct __vxge_hw_fifo
*fifo_hw
;
822 unsigned long flags
= 0;
824 int do_spin_tx_lock
= 1;
826 vxge_debug_entryexit(VXGE_TRACE
, "%s: %s:%d",
827 dev
->name
, __func__
, __LINE__
);
829 /* A buffer with no data will be dropped */
830 if (unlikely(skb
->len
<= 0)) {
831 vxge_debug_tx(VXGE_ERR
,
832 "%s: Buffer has no data..", dev
->name
);
837 vdev
= (struct vxgedev
*)netdev_priv(dev
);
839 if (unlikely(!is_vxge_card_up(vdev
))) {
840 vxge_debug_tx(VXGE_ERR
,
841 "%s: vdev not initialized", dev
->name
);
846 if (vdev
->config
.addr_learn_en
) {
847 vpath_no
= vxge_learn_mac(vdev
, skb
->data
+ ETH_ALEN
);
848 if (vpath_no
== -EPERM
) {
849 vxge_debug_tx(VXGE_ERR
,
850 "%s: Failed to store the mac address",
857 if (vdev
->config
.tx_steering_type
== TX_MULTIQ_STEERING
)
858 vpath_no
= skb_get_queue_mapping(skb
);
859 else if (vdev
->config
.tx_steering_type
== TX_PORT_STEERING
)
860 vpath_no
= vxge_get_vpath_no(vdev
, skb
, &do_spin_tx_lock
);
862 vxge_debug_tx(VXGE_TRACE
, "%s: vpath_no= %d", dev
->name
, vpath_no
);
864 if (vpath_no
>= vdev
->no_of_vpath
)
867 fifo
= &vdev
->vpaths
[vpath_no
].fifo
;
868 fifo_hw
= fifo
->handle
;
871 spin_lock_irqsave(&fifo
->tx_lock
, flags
);
873 if (unlikely(!spin_trylock_irqsave(&fifo
->tx_lock
, flags
)))
874 return NETDEV_TX_LOCKED
;
877 if (vdev
->config
.tx_steering_type
== TX_MULTIQ_STEERING
) {
878 if (netif_subqueue_stopped(dev
, skb
)) {
879 spin_unlock_irqrestore(&fifo
->tx_lock
, flags
);
880 return NETDEV_TX_BUSY
;
882 } else if (unlikely(fifo
->queue_state
== VPATH_QUEUE_STOP
)) {
883 if (netif_queue_stopped(dev
)) {
884 spin_unlock_irqrestore(&fifo
->tx_lock
, flags
);
885 return NETDEV_TX_BUSY
;
888 avail
= vxge_hw_fifo_free_txdl_count_get(fifo_hw
);
890 vxge_debug_tx(VXGE_ERR
,
891 "%s: No free TXDs available", dev
->name
);
892 fifo
->stats
.txd_not_free
++;
893 vxge_stop_tx_queue(fifo
);
897 status
= vxge_hw_fifo_txdl_reserve(fifo_hw
, &dtr
, &dtr_priv
);
898 if (unlikely(status
!= VXGE_HW_OK
)) {
899 vxge_debug_tx(VXGE_ERR
,
900 "%s: Out of descriptors .", dev
->name
);
901 fifo
->stats
.txd_out_of_desc
++;
902 vxge_stop_tx_queue(fifo
);
906 vxge_debug_tx(VXGE_TRACE
,
907 "%s: %s:%d fifo_hw = %p dtr = %p dtr_priv = %p",
908 dev
->name
, __func__
, __LINE__
,
909 fifo_hw
, dtr
, dtr_priv
);
911 if (vdev
->vlgrp
&& vlan_tx_tag_present(skb
)) {
912 u16 vlan_tag
= vlan_tx_tag_get(skb
);
913 vxge_hw_fifo_txdl_vlan_set(dtr
, vlan_tag
);
916 first_frg_len
= skb_headlen(skb
);
918 dma_pointer
= pci_map_single(fifo
->pdev
, skb
->data
, first_frg_len
,
921 if (unlikely(pci_dma_mapping_error(fifo
->pdev
, dma_pointer
))) {
922 vxge_hw_fifo_txdl_free(fifo_hw
, dtr
);
923 vxge_stop_tx_queue(fifo
);
924 fifo
->stats
.pci_map_fail
++;
928 txdl_priv
= vxge_hw_fifo_txdl_private_get(dtr
);
929 txdl_priv
->skb
= skb
;
930 txdl_priv
->dma_buffers
[j
] = dma_pointer
;
932 frg_cnt
= skb_shinfo(skb
)->nr_frags
;
933 vxge_debug_tx(VXGE_TRACE
,
934 "%s: %s:%d skb = %p txdl_priv = %p "
935 "frag_cnt = %d dma_pointer = 0x%llx", dev
->name
,
936 __func__
, __LINE__
, skb
, txdl_priv
,
937 frg_cnt
, (unsigned long long)dma_pointer
);
939 vxge_hw_fifo_txdl_buffer_set(fifo_hw
, dtr
, j
++, dma_pointer
,
942 frag
= &skb_shinfo(skb
)->frags
[0];
943 for (i
= 0; i
< frg_cnt
; i
++) {
944 /* ignore 0 length fragment */
949 (u64
)pci_map_page(fifo
->pdev
, frag
->page
,
950 frag
->page_offset
, frag
->size
,
953 if (unlikely(pci_dma_mapping_error(fifo
->pdev
, dma_pointer
)))
955 vxge_debug_tx(VXGE_TRACE
,
956 "%s: %s:%d frag = %d dma_pointer = 0x%llx",
957 dev
->name
, __func__
, __LINE__
, i
,
958 (unsigned long long)dma_pointer
);
960 txdl_priv
->dma_buffers
[j
] = dma_pointer
;
961 vxge_hw_fifo_txdl_buffer_set(fifo_hw
, dtr
, j
++, dma_pointer
,
966 offload_type
= vxge_offload_type(skb
);
968 if (offload_type
& (SKB_GSO_TCPV4
| SKB_GSO_TCPV6
)) {
970 int mss
= vxge_tcp_mss(skb
);
972 max_mss
= dev
->mtu
+ ETH_HLEN
-
973 VXGE_HW_TCPIP_HEADER_MAX_SIZE
;
976 vxge_debug_tx(VXGE_TRACE
,
977 "%s: %s:%d mss = %d",
978 dev
->name
, __func__
, __LINE__
, mss
);
979 vxge_hw_fifo_txdl_mss_set(dtr
, mss
);
981 vxge_assert(skb
->len
<=
982 dev
->mtu
+ VXGE_HW_MAC_HEADER_MAX_SIZE
);
988 if (skb
->ip_summed
== CHECKSUM_PARTIAL
)
989 vxge_hw_fifo_txdl_cksum_set_bits(dtr
,
990 VXGE_HW_FIFO_TXD_TX_CKO_IPV4_EN
|
991 VXGE_HW_FIFO_TXD_TX_CKO_TCP_EN
|
992 VXGE_HW_FIFO_TXD_TX_CKO_UDP_EN
);
994 vxge_hw_fifo_txdl_post(fifo_hw
, dtr
);
995 dev
->trans_start
= jiffies
;
996 spin_unlock_irqrestore(&fifo
->tx_lock
, flags
);
998 VXGE_COMPLETE_VPATH_TX(fifo
);
999 vxge_debug_entryexit(VXGE_TRACE
, "%s: %s:%d Exiting...",
1000 dev
->name
, __func__
, __LINE__
);
1004 vxge_debug_tx(VXGE_TRACE
, "%s: pci_map_page failed", dev
->name
);
1008 frag
= &skb_shinfo(skb
)->frags
[0];
1010 pci_unmap_single(fifo
->pdev
, txdl_priv
->dma_buffers
[j
++],
1011 skb_headlen(skb
), PCI_DMA_TODEVICE
);
1013 for (; j
< i
; j
++) {
1014 pci_unmap_page(fifo
->pdev
, txdl_priv
->dma_buffers
[j
],
1015 frag
->size
, PCI_DMA_TODEVICE
);
1019 vxge_hw_fifo_txdl_free(fifo_hw
, dtr
);
1022 spin_unlock_irqrestore(&fifo
->tx_lock
, flags
);
1023 VXGE_COMPLETE_VPATH_TX(fifo
);
1031 * Function will be called by hw function to abort all outstanding receive
1035 vxge_rx_term(void *dtrh
, enum vxge_hw_rxd_state state
, void *userdata
)
1037 struct vxge_ring
*ring
= (struct vxge_ring
*)userdata
;
1038 struct vxge_rx_priv
*rx_priv
=
1039 vxge_hw_ring_rxd_private_get(dtrh
);
1041 vxge_debug_entryexit(VXGE_TRACE
, "%s: %s:%d",
1042 ring
->ndev
->name
, __func__
, __LINE__
);
1043 if (state
!= VXGE_HW_RXD_STATE_POSTED
)
1046 pci_unmap_single(ring
->pdev
, rx_priv
->data_dma
,
1047 rx_priv
->data_size
, PCI_DMA_FROMDEVICE
);
1049 dev_kfree_skb(rx_priv
->skb
);
1051 vxge_debug_entryexit(VXGE_TRACE
,
1052 "%s: %s:%d Exiting...",
1053 ring
->ndev
->name
, __func__
, __LINE__
);
1059 * Function will be called to abort all outstanding tx descriptors
1062 vxge_tx_term(void *dtrh
, enum vxge_hw_txdl_state state
, void *userdata
)
1064 struct vxge_fifo
*fifo
= (struct vxge_fifo
*)userdata
;
1066 int i
= 0, j
, frg_cnt
;
1067 struct vxge_tx_priv
*txd_priv
= vxge_hw_fifo_txdl_private_get(dtrh
);
1068 struct sk_buff
*skb
= txd_priv
->skb
;
1070 vxge_debug_entryexit(VXGE_TRACE
, "%s:%d", __func__
, __LINE__
);
1072 if (state
!= VXGE_HW_TXDL_STATE_POSTED
)
1075 /* check skb validity */
1077 frg_cnt
= skb_shinfo(skb
)->nr_frags
;
1078 frag
= &skb_shinfo(skb
)->frags
[0];
1080 /* for unfragmented skb */
1081 pci_unmap_single(fifo
->pdev
, txd_priv
->dma_buffers
[i
++],
1082 skb_headlen(skb
), PCI_DMA_TODEVICE
);
1084 for (j
= 0; j
< frg_cnt
; j
++) {
1085 pci_unmap_page(fifo
->pdev
, txd_priv
->dma_buffers
[i
++],
1086 frag
->size
, PCI_DMA_TODEVICE
);
1092 vxge_debug_entryexit(VXGE_TRACE
,
1093 "%s:%d Exiting...", __func__
, __LINE__
);
1097 * vxge_set_multicast
1098 * @dev: pointer to the device structure
1100 * Entry point for multicast address enable/disable
1101 * This function is a driver entry point which gets called by the kernel
1102 * whenever multicast addresses must be enabled/disabled. This also gets
1103 * called to set/reset promiscuous mode. Depending on the deivce flag, we
1104 * determine, if multicast address must be enabled or if promiscuous mode
1105 * is to be disabled etc.
1107 static void vxge_set_multicast(struct net_device
*dev
)
1109 struct dev_mc_list
*mclist
;
1110 struct vxgedev
*vdev
;
1111 int i
, mcast_cnt
= 0;
1112 struct __vxge_hw_device
*hldev
;
1113 enum vxge_hw_status status
= VXGE_HW_OK
;
1114 struct macInfo mac_info
;
1116 struct vxge_mac_addrs
*mac_entry
;
1117 struct list_head
*list_head
;
1118 struct list_head
*entry
, *next
;
1119 u8
*mac_address
= NULL
;
1121 vxge_debug_entryexit(VXGE_TRACE
,
1122 "%s:%d", __func__
, __LINE__
);
1124 vdev
= (struct vxgedev
*)netdev_priv(dev
);
1125 hldev
= (struct __vxge_hw_device
*)vdev
->devh
;
1127 if (unlikely(!is_vxge_card_up(vdev
)))
1130 if ((dev
->flags
& IFF_ALLMULTI
) && (!vdev
->all_multi_flg
)) {
1131 for (i
= 0; i
< vdev
->no_of_vpath
; i
++) {
1132 vxge_assert(vdev
->vpaths
[i
].is_open
);
1133 status
= vxge_hw_vpath_mcast_enable(
1134 vdev
->vpaths
[i
].handle
);
1135 vdev
->all_multi_flg
= 1;
1137 } else if ((dev
->flags
& IFF_ALLMULTI
) && (vdev
->all_multi_flg
)) {
1138 for (i
= 0; i
< vdev
->no_of_vpath
; i
++) {
1139 vxge_assert(vdev
->vpaths
[i
].is_open
);
1140 status
= vxge_hw_vpath_mcast_disable(
1141 vdev
->vpaths
[i
].handle
);
1142 vdev
->all_multi_flg
= 1;
1146 if (status
!= VXGE_HW_OK
)
1147 vxge_debug_init(VXGE_ERR
,
1148 "failed to %s multicast, status %d",
1149 dev
->flags
& IFF_ALLMULTI
?
1150 "enable" : "disable", status
);
1152 if (!vdev
->config
.addr_learn_en
) {
1153 if (dev
->flags
& IFF_PROMISC
) {
1154 for (i
= 0; i
< vdev
->no_of_vpath
; i
++) {
1155 vxge_assert(vdev
->vpaths
[i
].is_open
);
1156 status
= vxge_hw_vpath_promisc_enable(
1157 vdev
->vpaths
[i
].handle
);
1160 for (i
= 0; i
< vdev
->no_of_vpath
; i
++) {
1161 vxge_assert(vdev
->vpaths
[i
].is_open
);
1162 status
= vxge_hw_vpath_promisc_disable(
1163 vdev
->vpaths
[i
].handle
);
1168 memset(&mac_info
, 0, sizeof(struct macInfo
));
1169 /* Update individual M_CAST address list */
1170 if ((!vdev
->all_multi_flg
) && dev
->mc_count
) {
1172 mcast_cnt
= vdev
->vpaths
[0].mcast_addr_cnt
;
1173 list_head
= &vdev
->vpaths
[0].mac_addr_list
;
1174 if ((dev
->mc_count
+
1175 (vdev
->vpaths
[0].mac_addr_cnt
- mcast_cnt
)) >
1176 vdev
->vpaths
[0].max_mac_addr_cnt
)
1177 goto _set_all_mcast
;
1179 /* Delete previous MC's */
1180 for (i
= 0; i
< mcast_cnt
; i
++) {
1181 if (!list_empty(list_head
))
1182 mac_entry
= (struct vxge_mac_addrs
*)
1183 list_first_entry(list_head
,
1184 struct vxge_mac_addrs
,
1187 list_for_each_safe(entry
, next
, list_head
) {
1189 mac_entry
= (struct vxge_mac_addrs
*) entry
;
1190 /* Copy the mac address to delete */
1191 mac_address
= (u8
*)&mac_entry
->macaddr
;
1192 memcpy(mac_info
.macaddr
, mac_address
, ETH_ALEN
);
1194 /* Is this a multicast address */
1195 if (0x01 & mac_info
.macaddr
[0]) {
1196 for (vpath_idx
= 0; vpath_idx
<
1199 mac_info
.vpath_no
= vpath_idx
;
1200 status
= vxge_del_mac_addr(
1209 for (i
= 0, mclist
= dev
->mc_list
; i
< dev
->mc_count
;
1210 i
++, mclist
= mclist
->next
) {
1212 memcpy(mac_info
.macaddr
, mclist
->dmi_addr
, ETH_ALEN
);
1213 for (vpath_idx
= 0; vpath_idx
< vdev
->no_of_vpath
;
1215 mac_info
.vpath_no
= vpath_idx
;
1216 mac_info
.state
= VXGE_LL_MAC_ADDR_IN_DA_TABLE
;
1217 status
= vxge_add_mac_addr(vdev
, &mac_info
);
1218 if (status
!= VXGE_HW_OK
) {
1219 vxge_debug_init(VXGE_ERR
,
1220 "%s:%d Setting individual"
1221 "multicast address failed",
1222 __func__
, __LINE__
);
1223 goto _set_all_mcast
;
1230 mcast_cnt
= vdev
->vpaths
[0].mcast_addr_cnt
;
1231 /* Delete previous MC's */
1232 for (i
= 0; i
< mcast_cnt
; i
++) {
1234 list_for_each_safe(entry
, next
, list_head
) {
1236 mac_entry
= (struct vxge_mac_addrs
*) entry
;
1237 /* Copy the mac address to delete */
1238 mac_address
= (u8
*)&mac_entry
->macaddr
;
1239 memcpy(mac_info
.macaddr
, mac_address
, ETH_ALEN
);
1241 /* Is this a multicast address */
1242 if (0x01 & mac_info
.macaddr
[0])
1246 for (vpath_idx
= 0; vpath_idx
< vdev
->no_of_vpath
;
1248 mac_info
.vpath_no
= vpath_idx
;
1249 status
= vxge_del_mac_addr(vdev
, &mac_info
);
1253 /* Enable all multicast */
1254 for (i
= 0; i
< vdev
->no_of_vpath
; i
++) {
1255 vxge_assert(vdev
->vpaths
[i
].is_open
);
1256 status
= vxge_hw_vpath_mcast_enable(
1257 vdev
->vpaths
[i
].handle
);
1258 if (status
!= VXGE_HW_OK
) {
1259 vxge_debug_init(VXGE_ERR
,
1260 "%s:%d Enabling all multicasts failed",
1261 __func__
, __LINE__
);
1263 vdev
->all_multi_flg
= 1;
1265 dev
->flags
|= IFF_ALLMULTI
;
1268 vxge_debug_entryexit(VXGE_TRACE
,
1269 "%s:%d Exiting...", __func__
, __LINE__
);
1274 * @dev: pointer to the device structure
1276 * Update entry "0" (default MAC addr)
1278 static int vxge_set_mac_addr(struct net_device
*dev
, void *p
)
1280 struct sockaddr
*addr
= p
;
1281 struct vxgedev
*vdev
;
1282 struct __vxge_hw_device
*hldev
;
1283 enum vxge_hw_status status
= VXGE_HW_OK
;
1284 struct macInfo mac_info_new
, mac_info_old
;
1287 vxge_debug_entryexit(VXGE_TRACE
, "%s:%d", __func__
, __LINE__
);
1289 vdev
= (struct vxgedev
*)netdev_priv(dev
);
1292 if (!is_valid_ether_addr(addr
->sa_data
))
1295 memset(&mac_info_new
, 0, sizeof(struct macInfo
));
1296 memset(&mac_info_old
, 0, sizeof(struct macInfo
));
1298 vxge_debug_entryexit(VXGE_TRACE
, "%s:%d Exiting...",
1299 __func__
, __LINE__
);
1301 /* Get the old address */
1302 memcpy(mac_info_old
.macaddr
, dev
->dev_addr
, dev
->addr_len
);
1304 /* Copy the new address */
1305 memcpy(mac_info_new
.macaddr
, addr
->sa_data
, dev
->addr_len
);
1307 /* First delete the old mac address from all the vpaths
1308 as we can't specify the index while adding new mac address */
1309 for (vpath_idx
= 0; vpath_idx
< vdev
->no_of_vpath
; vpath_idx
++) {
1310 struct vxge_vpath
*vpath
= &vdev
->vpaths
[vpath_idx
];
1311 if (!vpath
->is_open
) {
1312 /* This can happen when this interface is added/removed
1313 to the bonding interface. Delete this station address
1314 from the linked list */
1315 vxge_mac_list_del(vpath
, &mac_info_old
);
1317 /* Add this new address to the linked list
1318 for later restoring */
1319 vxge_mac_list_add(vpath
, &mac_info_new
);
1323 /* Delete the station address */
1324 mac_info_old
.vpath_no
= vpath_idx
;
1325 status
= vxge_del_mac_addr(vdev
, &mac_info_old
);
1328 if (unlikely(!is_vxge_card_up(vdev
))) {
1329 memcpy(dev
->dev_addr
, addr
->sa_data
, dev
->addr_len
);
1333 /* Set this mac address to all the vpaths */
1334 for (vpath_idx
= 0; vpath_idx
< vdev
->no_of_vpath
; vpath_idx
++) {
1335 mac_info_new
.vpath_no
= vpath_idx
;
1336 mac_info_new
.state
= VXGE_LL_MAC_ADDR_IN_DA_TABLE
;
1337 status
= vxge_add_mac_addr(vdev
, &mac_info_new
);
1338 if (status
!= VXGE_HW_OK
)
1342 memcpy(dev
->dev_addr
, addr
->sa_data
, dev
->addr_len
);
1348 * vxge_vpath_intr_enable
1349 * @vdev: pointer to vdev
1350 * @vp_id: vpath for which to enable the interrupts
1352 * Enables the interrupts for the vpath
1354 void vxge_vpath_intr_enable(struct vxgedev
*vdev
, int vp_id
)
1356 struct vxge_vpath
*vpath
= &vdev
->vpaths
[vp_id
];
1357 int msix_id
, alarm_msix_id
;
1358 int tim_msix_id
[4] = {[0 ...3] = 0};
1360 vxge_hw_vpath_intr_enable(vpath
->handle
);
1362 if (vdev
->config
.intr_type
== INTA
)
1363 vxge_hw_vpath_inta_unmask_tx_rx(vpath
->handle
);
1365 msix_id
= vp_id
* VXGE_HW_VPATH_MSIX_ACTIVE
;
1367 VXGE_HW_VPATH_MSIX_ACTIVE
* vdev
->no_of_vpath
- 2;
1369 tim_msix_id
[0] = msix_id
;
1370 tim_msix_id
[1] = msix_id
+ 1;
1371 vxge_hw_vpath_msix_set(vpath
->handle
, tim_msix_id
,
1374 vxge_hw_vpath_msix_unmask(vpath
->handle
, msix_id
);
1375 vxge_hw_vpath_msix_unmask(vpath
->handle
, msix_id
+ 1);
1377 /* enable the alarm vector */
1378 vxge_hw_vpath_msix_unmask(vpath
->handle
, alarm_msix_id
);
1383 * vxge_vpath_intr_disable
1384 * @vdev: pointer to vdev
1385 * @vp_id: vpath for which to disable the interrupts
1387 * Disables the interrupts for the vpath
1389 void vxge_vpath_intr_disable(struct vxgedev
*vdev
, int vp_id
)
1391 struct vxge_vpath
*vpath
= &vdev
->vpaths
[vp_id
];
1394 vxge_hw_vpath_intr_disable(vpath
->handle
);
1396 if (vdev
->config
.intr_type
== INTA
)
1397 vxge_hw_vpath_inta_mask_tx_rx(vpath
->handle
);
1399 msix_id
= vp_id
* VXGE_HW_VPATH_MSIX_ACTIVE
;
1400 vxge_hw_vpath_msix_mask(vpath
->handle
, msix_id
);
1401 vxge_hw_vpath_msix_mask(vpath
->handle
, msix_id
+ 1);
1403 /* disable the alarm vector */
1404 msix_id
= VXGE_HW_VPATH_MSIX_ACTIVE
* vdev
->no_of_vpath
- 2;
1405 vxge_hw_vpath_msix_mask(vpath
->handle
, msix_id
);
1411 * @vdev: pointer to vdev
1412 * @vp_id: vpath to reset
1416 static int vxge_reset_vpath(struct vxgedev
*vdev
, int vp_id
)
1418 enum vxge_hw_status status
= VXGE_HW_OK
;
1421 /* check if device is down already */
1422 if (unlikely(!is_vxge_card_up(vdev
)))
1425 /* is device reset already scheduled */
1426 if (test_bit(__VXGE_STATE_RESET_CARD
, &vdev
->state
))
1429 if (vdev
->vpaths
[vp_id
].handle
) {
1430 if (vxge_hw_vpath_reset(vdev
->vpaths
[vp_id
].handle
)
1432 if (is_vxge_card_up(vdev
) &&
1433 vxge_hw_vpath_recover_from_reset(
1434 vdev
->vpaths
[vp_id
].handle
)
1436 vxge_debug_init(VXGE_ERR
,
1437 "vxge_hw_vpath_recover_from_reset"
1438 "failed for vpath:%d", vp_id
);
1442 vxge_debug_init(VXGE_ERR
,
1443 "vxge_hw_vpath_reset failed for"
1448 return VXGE_HW_FAIL
;
1450 vxge_restore_vpath_mac_addr(&vdev
->vpaths
[vp_id
]);
1451 vxge_restore_vpath_vid_table(&vdev
->vpaths
[vp_id
]);
1453 /* Enable all broadcast */
1454 vxge_hw_vpath_bcast_enable(vdev
->vpaths
[vp_id
].handle
);
1456 /* Enable the interrupts */
1457 vxge_vpath_intr_enable(vdev
, vp_id
);
1461 /* Enable the flow of traffic through the vpath */
1462 vxge_hw_vpath_enable(vdev
->vpaths
[vp_id
].handle
);
1465 vxge_hw_vpath_rx_doorbell_init(vdev
->vpaths
[vp_id
].handle
);
1466 vdev
->vpaths
[vp_id
].ring
.last_status
= VXGE_HW_OK
;
1468 /* Vpath reset done */
1469 clear_bit(vp_id
, &vdev
->vp_reset
);
1471 /* Start the vpath queue */
1472 vxge_wake_tx_queue(&vdev
->vpaths
[vp_id
].fifo
, NULL
);
1477 static int do_vxge_reset(struct vxgedev
*vdev
, int event
)
1479 enum vxge_hw_status status
;
1480 int ret
= 0, vp_id
, i
;
1482 vxge_debug_entryexit(VXGE_TRACE
, "%s:%d", __func__
, __LINE__
);
1484 if ((event
== VXGE_LL_FULL_RESET
) || (event
== VXGE_LL_START_RESET
)) {
1485 /* check if device is down already */
1486 if (unlikely(!is_vxge_card_up(vdev
)))
1489 /* is reset already scheduled */
1490 if (test_and_set_bit(__VXGE_STATE_RESET_CARD
, &vdev
->state
))
1494 if (event
== VXGE_LL_FULL_RESET
) {
1495 /* wait for all the vpath reset to complete */
1496 for (vp_id
= 0; vp_id
< vdev
->no_of_vpath
; vp_id
++) {
1497 while (test_bit(vp_id
, &vdev
->vp_reset
))
1501 /* if execution mode is set to debug, don't reset the adapter */
1502 if (unlikely(vdev
->exec_mode
)) {
1503 vxge_debug_init(VXGE_ERR
,
1504 "%s: execution mode is debug, returning..",
1506 clear_bit(__VXGE_STATE_CARD_UP
, &vdev
->state
);
1507 vxge_stop_all_tx_queue(vdev
);
1512 if (event
== VXGE_LL_FULL_RESET
) {
1513 vxge_hw_device_intr_disable(vdev
->devh
);
1515 switch (vdev
->cric_err_event
) {
1516 case VXGE_HW_EVENT_UNKNOWN
:
1517 vxge_stop_all_tx_queue(vdev
);
1518 vxge_debug_init(VXGE_ERR
,
1519 "fatal: %s: Disabling device due to"
1524 case VXGE_HW_EVENT_RESET_START
:
1526 case VXGE_HW_EVENT_RESET_COMPLETE
:
1527 case VXGE_HW_EVENT_LINK_DOWN
:
1528 case VXGE_HW_EVENT_LINK_UP
:
1529 case VXGE_HW_EVENT_ALARM_CLEARED
:
1530 case VXGE_HW_EVENT_ECCERR
:
1531 case VXGE_HW_EVENT_MRPCIM_ECCERR
:
1534 case VXGE_HW_EVENT_FIFO_ERR
:
1535 case VXGE_HW_EVENT_VPATH_ERR
:
1537 case VXGE_HW_EVENT_CRITICAL_ERR
:
1538 vxge_stop_all_tx_queue(vdev
);
1539 vxge_debug_init(VXGE_ERR
,
1540 "fatal: %s: Disabling device due to"
1543 /* SOP or device reset required */
1544 /* This event is not currently used */
1547 case VXGE_HW_EVENT_SERR
:
1548 vxge_stop_all_tx_queue(vdev
);
1549 vxge_debug_init(VXGE_ERR
,
1550 "fatal: %s: Disabling device due to"
1555 case VXGE_HW_EVENT_SRPCIM_SERR
:
1556 case VXGE_HW_EVENT_MRPCIM_SERR
:
1559 case VXGE_HW_EVENT_SLOT_FREEZE
:
1560 vxge_stop_all_tx_queue(vdev
);
1561 vxge_debug_init(VXGE_ERR
,
1562 "fatal: %s: Disabling device due to"
1573 if ((event
== VXGE_LL_FULL_RESET
) || (event
== VXGE_LL_START_RESET
))
1574 vxge_stop_all_tx_queue(vdev
);
1576 if (event
== VXGE_LL_FULL_RESET
) {
1577 status
= vxge_reset_all_vpaths(vdev
);
1578 if (status
!= VXGE_HW_OK
) {
1579 vxge_debug_init(VXGE_ERR
,
1580 "fatal: %s: can not reset vpaths",
1587 if (event
== VXGE_LL_COMPL_RESET
) {
1588 for (i
= 0; i
< vdev
->no_of_vpath
; i
++)
1589 if (vdev
->vpaths
[i
].handle
) {
1590 if (vxge_hw_vpath_recover_from_reset(
1591 vdev
->vpaths
[i
].handle
)
1593 vxge_debug_init(VXGE_ERR
,
1594 "vxge_hw_vpath_recover_"
1595 "from_reset failed for vpath: "
1601 vxge_debug_init(VXGE_ERR
,
1602 "vxge_hw_vpath_reset failed for "
1609 if ((event
== VXGE_LL_FULL_RESET
) || (event
== VXGE_LL_COMPL_RESET
)) {
1610 /* Reprogram the DA table with populated mac addresses */
1611 for (vp_id
= 0; vp_id
< vdev
->no_of_vpath
; vp_id
++) {
1612 vxge_restore_vpath_mac_addr(&vdev
->vpaths
[vp_id
]);
1613 vxge_restore_vpath_vid_table(&vdev
->vpaths
[vp_id
]);
1616 /* enable vpath interrupts */
1617 for (i
= 0; i
< vdev
->no_of_vpath
; i
++)
1618 vxge_vpath_intr_enable(vdev
, i
);
1620 vxge_hw_device_intr_enable(vdev
->devh
);
1624 /* Indicate card up */
1625 set_bit(__VXGE_STATE_CARD_UP
, &vdev
->state
);
1627 /* Get the traffic to flow through the vpaths */
1628 for (i
= 0; i
< vdev
->no_of_vpath
; i
++) {
1629 vxge_hw_vpath_enable(vdev
->vpaths
[i
].handle
);
1631 vxge_hw_vpath_rx_doorbell_init(vdev
->vpaths
[i
].handle
);
1634 vxge_wake_all_tx_queue(vdev
);
1638 vxge_debug_entryexit(VXGE_TRACE
,
1639 "%s:%d Exiting...", __func__
, __LINE__
);
1641 /* Indicate reset done */
1642 if ((event
== VXGE_LL_FULL_RESET
) || (event
== VXGE_LL_COMPL_RESET
))
1643 clear_bit(__VXGE_STATE_RESET_CARD
, &vdev
->state
);
1649 * @vdev: pointer to ll device
1651 * driver may reset the chip on events of serr, eccerr, etc
1653 int vxge_reset(struct vxgedev
*vdev
)
1655 do_vxge_reset(vdev
, VXGE_LL_FULL_RESET
);
1660 * vxge_poll - Receive handler when Receive Polling is used.
1661 * @dev: pointer to the device structure.
1662 * @budget: Number of packets budgeted to be processed in this iteration.
1664 * This function comes into picture only if Receive side is being handled
1665 * through polling (called NAPI in linux). It mostly does what the normal
1666 * Rx interrupt handler does in terms of descriptor and packet processing
1667 * but not in an interrupt context. Also it will process a specified number
1668 * of packets at most in one iteration. This value is passed down by the
1669 * kernel as the function argument 'budget'.
1671 static int vxge_poll_msix(struct napi_struct
*napi
, int budget
)
1673 struct vxge_ring
*ring
=
1674 container_of(napi
, struct vxge_ring
, napi
);
1675 int budget_org
= budget
;
1676 ring
->budget
= budget
;
1678 vxge_hw_vpath_poll_rx(ring
->handle
);
1680 if (ring
->pkts_processed
< budget_org
) {
1681 napi_complete(napi
);
1682 /* Re enable the Rx interrupts for the vpath */
1683 vxge_hw_channel_msix_unmask(
1684 (struct __vxge_hw_channel
*)ring
->handle
,
1685 ring
->rx_vector_no
);
1688 return ring
->pkts_processed
;
1691 static int vxge_poll_inta(struct napi_struct
*napi
, int budget
)
1693 struct vxgedev
*vdev
= container_of(napi
, struct vxgedev
, napi
);
1694 int pkts_processed
= 0;
1696 int budget_org
= budget
;
1697 struct vxge_ring
*ring
;
1699 struct __vxge_hw_device
*hldev
= (struct __vxge_hw_device
*)
1700 pci_get_drvdata(vdev
->pdev
);
1702 for (i
= 0; i
< vdev
->no_of_vpath
; i
++) {
1703 ring
= &vdev
->vpaths
[i
].ring
;
1704 ring
->budget
= budget
;
1705 vxge_hw_vpath_poll_rx(ring
->handle
);
1706 pkts_processed
+= ring
->pkts_processed
;
1707 budget
-= ring
->pkts_processed
;
1712 VXGE_COMPLETE_ALL_TX(vdev
);
1714 if (pkts_processed
< budget_org
) {
1715 napi_complete(napi
);
1716 /* Re enable the Rx interrupts for the ring */
1717 vxge_hw_device_unmask_all(hldev
);
1718 vxge_hw_device_flush_io(hldev
);
1721 return pkts_processed
;
1724 #ifdef CONFIG_NET_POLL_CONTROLLER
1726 * vxge_netpoll - netpoll event handler entry point
1727 * @dev : pointer to the device structure.
1729 * This function will be called by upper layer to check for events on the
1730 * interface in situations where interrupts are disabled. It is used for
1731 * specific in-kernel networking tasks, such as remote consoles and kernel
1732 * debugging over the network (example netdump in RedHat).
1734 static void vxge_netpoll(struct net_device
*dev
)
1736 struct __vxge_hw_device
*hldev
;
1737 struct vxgedev
*vdev
;
1739 vdev
= (struct vxgedev
*)netdev_priv(dev
);
1740 hldev
= (struct __vxge_hw_device
*)pci_get_drvdata(vdev
->pdev
);
1742 vxge_debug_entryexit(VXGE_TRACE
, "%s:%d", __func__
, __LINE__
);
1744 if (pci_channel_offline(vdev
->pdev
))
1747 disable_irq(dev
->irq
);
1748 vxge_hw_device_clear_tx_rx(hldev
);
1750 vxge_hw_device_clear_tx_rx(hldev
);
1751 VXGE_COMPLETE_ALL_RX(vdev
);
1752 VXGE_COMPLETE_ALL_TX(vdev
);
1754 enable_irq(dev
->irq
);
1756 vxge_debug_entryexit(VXGE_TRACE
,
1757 "%s:%d Exiting...", __func__
, __LINE__
);
1762 /* RTH configuration */
1763 static enum vxge_hw_status
vxge_rth_configure(struct vxgedev
*vdev
)
1765 enum vxge_hw_status status
= VXGE_HW_OK
;
1766 struct vxge_hw_rth_hash_types hash_types
;
1767 u8 itable
[256] = {0}; /* indirection table */
1768 u8 mtable
[256] = {0}; /* CPU to vpath mapping */
1773 * - itable with bucket numbers
1774 * - mtable with bucket-to-vpath mapping
1776 for (index
= 0; index
< (1 << vdev
->config
.rth_bkt_sz
); index
++) {
1777 itable
[index
] = index
;
1778 mtable
[index
] = index
% vdev
->no_of_vpath
;
1781 /* Fill RTH hash types */
1782 hash_types
.hash_type_tcpipv4_en
= vdev
->config
.rth_hash_type_tcpipv4
;
1783 hash_types
.hash_type_ipv4_en
= vdev
->config
.rth_hash_type_ipv4
;
1784 hash_types
.hash_type_tcpipv6_en
= vdev
->config
.rth_hash_type_tcpipv6
;
1785 hash_types
.hash_type_ipv6_en
= vdev
->config
.rth_hash_type_ipv6
;
1786 hash_types
.hash_type_tcpipv6ex_en
=
1787 vdev
->config
.rth_hash_type_tcpipv6ex
;
1788 hash_types
.hash_type_ipv6ex_en
= vdev
->config
.rth_hash_type_ipv6ex
;
1790 /* set indirection table, bucket-to-vpath mapping */
1791 status
= vxge_hw_vpath_rts_rth_itable_set(vdev
->vp_handles
,
1794 vdev
->config
.rth_bkt_sz
);
1795 if (status
!= VXGE_HW_OK
) {
1796 vxge_debug_init(VXGE_ERR
,
1797 "RTH indirection table configuration failed "
1798 "for vpath:%d", vdev
->vpaths
[0].device_id
);
1803 * Because the itable_set() method uses the active_table field
1804 * for the target virtual path the RTH config should be updated
1805 * for all VPATHs. The h/w only uses the lowest numbered VPATH
1806 * when steering frames.
1808 for (index
= 0; index
< vdev
->no_of_vpath
; index
++) {
1809 status
= vxge_hw_vpath_rts_rth_set(
1810 vdev
->vpaths
[index
].handle
,
1811 vdev
->config
.rth_algorithm
,
1813 vdev
->config
.rth_bkt_sz
);
1815 if (status
!= VXGE_HW_OK
) {
1816 vxge_debug_init(VXGE_ERR
,
1817 "RTH configuration failed for vpath:%d",
1818 vdev
->vpaths
[index
].device_id
);
1826 int vxge_mac_list_add(struct vxge_vpath
*vpath
, struct macInfo
*mac
)
1828 struct vxge_mac_addrs
*new_mac_entry
;
1829 u8
*mac_address
= NULL
;
1831 if (vpath
->mac_addr_cnt
>= VXGE_MAX_LEARN_MAC_ADDR_CNT
)
1834 new_mac_entry
= kzalloc(sizeof(struct vxge_mac_addrs
), GFP_ATOMIC
);
1835 if (!new_mac_entry
) {
1836 vxge_debug_mem(VXGE_ERR
,
1837 "%s: memory allocation failed",
1842 list_add(&new_mac_entry
->item
, &vpath
->mac_addr_list
);
1844 /* Copy the new mac address to the list */
1845 mac_address
= (u8
*)&new_mac_entry
->macaddr
;
1846 memcpy(mac_address
, mac
->macaddr
, ETH_ALEN
);
1848 new_mac_entry
->state
= mac
->state
;
1849 vpath
->mac_addr_cnt
++;
1851 /* Is this a multicast address */
1852 if (0x01 & mac
->macaddr
[0])
1853 vpath
->mcast_addr_cnt
++;
1858 /* Add a mac address to DA table */
1859 enum vxge_hw_status
vxge_add_mac_addr(struct vxgedev
*vdev
, struct macInfo
*mac
)
1861 enum vxge_hw_status status
= VXGE_HW_OK
;
1862 struct vxge_vpath
*vpath
;
1863 enum vxge_hw_vpath_mac_addr_add_mode duplicate_mode
;
1865 if (0x01 & mac
->macaddr
[0]) /* multicast address */
1866 duplicate_mode
= VXGE_HW_VPATH_MAC_ADDR_ADD_DUPLICATE
;
1868 duplicate_mode
= VXGE_HW_VPATH_MAC_ADDR_REPLACE_DUPLICATE
;
1870 vpath
= &vdev
->vpaths
[mac
->vpath_no
];
1871 status
= vxge_hw_vpath_mac_addr_add(vpath
->handle
, mac
->macaddr
,
1872 mac
->macmask
, duplicate_mode
);
1873 if (status
!= VXGE_HW_OK
) {
1874 vxge_debug_init(VXGE_ERR
,
1875 "DA config add entry failed for vpath:%d",
1878 if (FALSE
== vxge_mac_list_add(vpath
, mac
))
1884 int vxge_mac_list_del(struct vxge_vpath
*vpath
, struct macInfo
*mac
)
1886 struct list_head
*entry
, *next
;
1888 u8
*mac_address
= (u8
*) (&del_mac
);
1890 /* Copy the mac address to delete from the list */
1891 memcpy(mac_address
, mac
->macaddr
, ETH_ALEN
);
1893 list_for_each_safe(entry
, next
, &vpath
->mac_addr_list
) {
1894 if (((struct vxge_mac_addrs
*)entry
)->macaddr
== del_mac
) {
1896 kfree((struct vxge_mac_addrs
*)entry
);
1897 vpath
->mac_addr_cnt
--;
1899 /* Is this a multicast address */
1900 if (0x01 & mac
->macaddr
[0])
1901 vpath
->mcast_addr_cnt
--;
1908 /* delete a mac address from DA table */
1909 enum vxge_hw_status
vxge_del_mac_addr(struct vxgedev
*vdev
, struct macInfo
*mac
)
1911 enum vxge_hw_status status
= VXGE_HW_OK
;
1912 struct vxge_vpath
*vpath
;
1914 vpath
= &vdev
->vpaths
[mac
->vpath_no
];
1915 status
= vxge_hw_vpath_mac_addr_delete(vpath
->handle
, mac
->macaddr
,
1917 if (status
!= VXGE_HW_OK
) {
1918 vxge_debug_init(VXGE_ERR
,
1919 "DA config delete entry failed for vpath:%d",
1922 vxge_mac_list_del(vpath
, mac
);
1926 /* list all mac addresses from DA table */
1928 static vxge_search_mac_addr_in_da_table(struct vxge_vpath
*vpath
,
1929 struct macInfo
*mac
)
1931 enum vxge_hw_status status
= VXGE_HW_OK
;
1932 unsigned char macmask
[ETH_ALEN
];
1933 unsigned char macaddr
[ETH_ALEN
];
1935 status
= vxge_hw_vpath_mac_addr_get(vpath
->handle
,
1937 if (status
!= VXGE_HW_OK
) {
1938 vxge_debug_init(VXGE_ERR
,
1939 "DA config list entry failed for vpath:%d",
1944 while (memcmp(mac
->macaddr
, macaddr
, ETH_ALEN
)) {
1946 status
= vxge_hw_vpath_mac_addr_get_next(vpath
->handle
,
1948 if (status
!= VXGE_HW_OK
)
1955 /* Store all vlan ids from the list to the vid table */
1956 enum vxge_hw_status
vxge_restore_vpath_vid_table(struct vxge_vpath
*vpath
)
1958 enum vxge_hw_status status
= VXGE_HW_OK
;
1959 struct vxgedev
*vdev
= vpath
->vdev
;
1962 if (vdev
->vlgrp
&& vpath
->is_open
) {
1964 for (vid
= 0; vid
< VLAN_GROUP_ARRAY_LEN
; vid
++) {
1965 if (!vlan_group_get_device(vdev
->vlgrp
, vid
))
1967 /* Add these vlan to the vid table */
1968 status
= vxge_hw_vpath_vid_add(vpath
->handle
, vid
);
1975 /* Store all mac addresses from the list to the DA table */
1976 enum vxge_hw_status
vxge_restore_vpath_mac_addr(struct vxge_vpath
*vpath
)
1978 enum vxge_hw_status status
= VXGE_HW_OK
;
1979 struct macInfo mac_info
;
1980 u8
*mac_address
= NULL
;
1981 struct list_head
*entry
, *next
;
1983 memset(&mac_info
, 0, sizeof(struct macInfo
));
1985 if (vpath
->is_open
) {
1987 list_for_each_safe(entry
, next
, &vpath
->mac_addr_list
) {
1990 ((struct vxge_mac_addrs
*)entry
)->macaddr
;
1991 memcpy(mac_info
.macaddr
, mac_address
, ETH_ALEN
);
1992 ((struct vxge_mac_addrs
*)entry
)->state
=
1993 VXGE_LL_MAC_ADDR_IN_DA_TABLE
;
1994 /* does this mac address already exist in da table? */
1995 status
= vxge_search_mac_addr_in_da_table(vpath
,
1997 if (status
!= VXGE_HW_OK
) {
1998 /* Add this mac address to the DA table */
1999 status
= vxge_hw_vpath_mac_addr_add(
2000 vpath
->handle
, mac_info
.macaddr
,
2002 VXGE_HW_VPATH_MAC_ADDR_ADD_DUPLICATE
);
2003 if (status
!= VXGE_HW_OK
) {
2004 vxge_debug_init(VXGE_ERR
,
2005 "DA add entry failed for vpath:%d",
2007 ((struct vxge_mac_addrs
*)entry
)->state
2008 = VXGE_LL_MAC_ADDR_IN_LIST
;
2018 enum vxge_hw_status
vxge_reset_all_vpaths(struct vxgedev
*vdev
)
2021 enum vxge_hw_status status
= VXGE_HW_OK
;
2023 for (i
= 0; i
< vdev
->no_of_vpath
; i
++)
2024 if (vdev
->vpaths
[i
].handle
) {
2025 if (vxge_hw_vpath_reset(vdev
->vpaths
[i
].handle
)
2027 if (is_vxge_card_up(vdev
) &&
2028 vxge_hw_vpath_recover_from_reset(
2029 vdev
->vpaths
[i
].handle
)
2031 vxge_debug_init(VXGE_ERR
,
2032 "vxge_hw_vpath_recover_"
2033 "from_reset failed for vpath: "
2038 vxge_debug_init(VXGE_ERR
,
2039 "vxge_hw_vpath_reset failed for "
2048 void vxge_close_vpaths(struct vxgedev
*vdev
, int index
)
2051 for (i
= index
; i
< vdev
->no_of_vpath
; i
++) {
2052 if (vdev
->vpaths
[i
].handle
&& vdev
->vpaths
[i
].is_open
) {
2053 vxge_hw_vpath_close(vdev
->vpaths
[i
].handle
);
2054 vdev
->stats
.vpaths_open
--;
2056 vdev
->vpaths
[i
].is_open
= 0;
2057 vdev
->vpaths
[i
].handle
= NULL
;
2062 int vxge_open_vpaths(struct vxgedev
*vdev
)
2064 enum vxge_hw_status status
;
2067 struct vxge_hw_vpath_attr attr
;
2069 for (i
= 0; i
< vdev
->no_of_vpath
; i
++) {
2070 vxge_assert(vdev
->vpaths
[i
].is_configured
);
2071 attr
.vp_id
= vdev
->vpaths
[i
].device_id
;
2072 attr
.fifo_attr
.callback
= vxge_xmit_compl
;
2073 attr
.fifo_attr
.txdl_term
= vxge_tx_term
;
2074 attr
.fifo_attr
.per_txdl_space
= sizeof(struct vxge_tx_priv
);
2075 attr
.fifo_attr
.userdata
= (void *)&vdev
->vpaths
[i
].fifo
;
2077 attr
.ring_attr
.callback
= vxge_rx_1b_compl
;
2078 attr
.ring_attr
.rxd_init
= vxge_rx_initial_replenish
;
2079 attr
.ring_attr
.rxd_term
= vxge_rx_term
;
2080 attr
.ring_attr
.per_rxd_space
= sizeof(struct vxge_rx_priv
);
2081 attr
.ring_attr
.userdata
= (void *)&vdev
->vpaths
[i
].ring
;
2083 vdev
->vpaths
[i
].ring
.ndev
= vdev
->ndev
;
2084 vdev
->vpaths
[i
].ring
.pdev
= vdev
->pdev
;
2085 status
= vxge_hw_vpath_open(vdev
->devh
, &attr
,
2086 &(vdev
->vpaths
[i
].handle
));
2087 if (status
== VXGE_HW_OK
) {
2088 vdev
->vpaths
[i
].fifo
.handle
=
2089 (struct __vxge_hw_fifo
*)attr
.fifo_attr
.userdata
;
2090 vdev
->vpaths
[i
].ring
.handle
=
2091 (struct __vxge_hw_ring
*)attr
.ring_attr
.userdata
;
2092 vdev
->vpaths
[i
].fifo
.tx_steering_type
=
2093 vdev
->config
.tx_steering_type
;
2094 vdev
->vpaths
[i
].fifo
.ndev
= vdev
->ndev
;
2095 vdev
->vpaths
[i
].fifo
.pdev
= vdev
->pdev
;
2096 vdev
->vpaths
[i
].fifo
.indicate_max_pkts
=
2097 vdev
->config
.fifo_indicate_max_pkts
;
2098 vdev
->vpaths
[i
].ring
.rx_vector_no
= 0;
2099 vdev
->vpaths
[i
].ring
.rx_csum
= vdev
->rx_csum
;
2100 vdev
->vpaths
[i
].is_open
= 1;
2101 vdev
->vp_handles
[i
] = vdev
->vpaths
[i
].handle
;
2102 vdev
->vpaths
[i
].ring
.gro_enable
=
2103 vdev
->config
.gro_enable
;
2104 vdev
->vpaths
[i
].ring
.vlan_tag_strip
=
2105 vdev
->vlan_tag_strip
;
2106 vdev
->stats
.vpaths_open
++;
2108 vdev
->stats
.vpath_open_fail
++;
2109 vxge_debug_init(VXGE_ERR
,
2110 "%s: vpath: %d failed to open "
2112 vdev
->ndev
->name
, vdev
->vpaths
[i
].device_id
,
2114 vxge_close_vpaths(vdev
, 0);
2119 ((struct __vxge_hw_vpath_handle
*)vdev
->vpaths
[i
].handle
)->
2121 vdev
->vpaths_deployed
|= vxge_mBIT(vp_id
);
2128 * @irq: the irq of the device.
2129 * @dev_id: a void pointer to the hldev structure of the Titan device
2130 * @ptregs: pointer to the registers pushed on the stack.
2132 * This function is the ISR handler of the device when napi is enabled. It
2133 * identifies the reason for the interrupt and calls the relevant service
2136 static irqreturn_t
vxge_isr_napi(int irq
, void *dev_id
)
2138 struct __vxge_hw_device
*hldev
= (struct __vxge_hw_device
*)dev_id
;
2139 struct vxgedev
*vdev
;
2140 struct net_device
*dev
;
2142 enum vxge_hw_status status
;
2144 vxge_debug_intr(VXGE_TRACE
, "%s:%d", __func__
, __LINE__
);
2147 vdev
= netdev_priv(dev
);
2149 if (pci_channel_offline(vdev
->pdev
))
2152 if (unlikely(!is_vxge_card_up(vdev
)))
2155 status
= vxge_hw_device_begin_irq(hldev
, vdev
->exec_mode
,
2157 if (status
== VXGE_HW_OK
) {
2158 vxge_hw_device_mask_all(hldev
);
2161 VXGE_HW_TITAN_GENERAL_INT_STATUS_VPATH_TRAFFIC_INT(
2162 vdev
->vpaths_deployed
>>
2163 (64 - VXGE_HW_MAX_VIRTUAL_PATHS
))) {
2165 vxge_hw_device_clear_tx_rx(hldev
);
2166 napi_schedule(&vdev
->napi
);
2167 vxge_debug_intr(VXGE_TRACE
,
2168 "%s:%d Exiting...", __func__
, __LINE__
);
2171 vxge_hw_device_unmask_all(hldev
);
2172 } else if (unlikely((status
== VXGE_HW_ERR_VPATH
) ||
2173 (status
== VXGE_HW_ERR_CRITICAL
) ||
2174 (status
== VXGE_HW_ERR_FIFO
))) {
2175 vxge_hw_device_mask_all(hldev
);
2176 vxge_hw_device_flush_io(hldev
);
2178 } else if (unlikely(status
== VXGE_HW_ERR_SLOT_FREEZE
))
2181 vxge_debug_intr(VXGE_TRACE
, "%s:%d Exiting...", __func__
, __LINE__
);
2185 #ifdef CONFIG_PCI_MSI
2188 vxge_tx_msix_handle(int irq
, void *dev_id
)
2190 struct vxge_fifo
*fifo
= (struct vxge_fifo
*)dev_id
;
2192 VXGE_COMPLETE_VPATH_TX(fifo
);
2198 vxge_rx_msix_napi_handle(int irq
, void *dev_id
)
2200 struct vxge_ring
*ring
= (struct vxge_ring
*)dev_id
;
2202 /* MSIX_IDX for Rx is 1 */
2203 vxge_hw_channel_msix_mask((struct __vxge_hw_channel
*)ring
->handle
,
2204 ring
->rx_vector_no
);
2206 napi_schedule(&ring
->napi
);
2211 vxge_alarm_msix_handle(int irq
, void *dev_id
)
2214 enum vxge_hw_status status
;
2215 struct vxge_vpath
*vpath
= (struct vxge_vpath
*)dev_id
;
2216 struct vxgedev
*vdev
= vpath
->vdev
;
2218 VXGE_HW_VPATH_MSIX_ACTIVE
* vdev
->no_of_vpath
- 2;
2220 for (i
= 0; i
< vdev
->no_of_vpath
; i
++) {
2221 vxge_hw_vpath_msix_mask(vdev
->vpaths
[i
].handle
,
2224 status
= vxge_hw_vpath_alarm_process(vdev
->vpaths
[i
].handle
,
2226 if (status
== VXGE_HW_OK
) {
2228 vxge_hw_vpath_msix_unmask(vdev
->vpaths
[i
].handle
,
2232 vxge_debug_intr(VXGE_ERR
,
2233 "%s: vxge_hw_vpath_alarm_process failed %x ",
2234 VXGE_DRIVER_NAME
, status
);
2239 static int vxge_alloc_msix(struct vxgedev
*vdev
)
2243 int alarm_msix_id
= 0, msix_intr_vect
= 0;
2246 /* Tx/Rx MSIX Vectors count */
2247 vdev
->intr_cnt
= vdev
->no_of_vpath
* 2;
2249 /* Alarm MSIX Vectors count */
2252 intr_cnt
= (vdev
->max_vpath_supported
* 2) + 1;
2253 vdev
->entries
= kzalloc(intr_cnt
* sizeof(struct msix_entry
),
2255 if (!vdev
->entries
) {
2256 vxge_debug_init(VXGE_ERR
,
2257 "%s: memory allocation failed",
2262 vdev
->vxge_entries
= kzalloc(intr_cnt
* sizeof(struct vxge_msix_entry
),
2264 if (!vdev
->vxge_entries
) {
2265 vxge_debug_init(VXGE_ERR
, "%s: memory allocation failed",
2267 kfree(vdev
->entries
);
2271 /* Last vector in the list is used for alarm */
2272 alarm_msix_id
= VXGE_HW_VPATH_MSIX_ACTIVE
* vdev
->no_of_vpath
- 2;
2273 for (i
= 0, j
= 0; i
< vdev
->max_vpath_supported
; i
++) {
2275 msix_intr_vect
= i
* VXGE_HW_VPATH_MSIX_ACTIVE
;
2277 /* Initialize the fifo vector */
2278 vdev
->entries
[j
].entry
= msix_intr_vect
;
2279 vdev
->vxge_entries
[j
].entry
= msix_intr_vect
;
2280 vdev
->vxge_entries
[j
].in_use
= 0;
2283 /* Initialize the ring vector */
2284 vdev
->entries
[j
].entry
= msix_intr_vect
+ 1;
2285 vdev
->vxge_entries
[j
].entry
= msix_intr_vect
+ 1;
2286 vdev
->vxge_entries
[j
].in_use
= 0;
2290 /* Initialize the alarm vector */
2291 vdev
->entries
[j
].entry
= alarm_msix_id
;
2292 vdev
->vxge_entries
[j
].entry
= alarm_msix_id
;
2293 vdev
->vxge_entries
[j
].in_use
= 0;
2295 ret
= pci_enable_msix(vdev
->pdev
, vdev
->entries
, intr_cnt
);
2296 /* if driver request exceeeds available irq's, request with a small
2300 vxge_debug_init(VXGE_ERR
,
2301 "%s: MSI-X enable failed for %d vectors, available: %d",
2302 VXGE_DRIVER_NAME
, intr_cnt
, ret
);
2303 vdev
->max_vpath_supported
= vdev
->no_of_vpath
;
2304 intr_cnt
= (vdev
->max_vpath_supported
* 2) + 1;
2306 /* Reset the alarm vector setting */
2307 vdev
->entries
[j
].entry
= 0;
2308 vdev
->vxge_entries
[j
].entry
= 0;
2310 /* Initialize the alarm vector with new setting */
2311 vdev
->entries
[intr_cnt
- 1].entry
= alarm_msix_id
;
2312 vdev
->vxge_entries
[intr_cnt
- 1].entry
= alarm_msix_id
;
2313 vdev
->vxge_entries
[intr_cnt
- 1].in_use
= 0;
2315 ret
= pci_enable_msix(vdev
->pdev
, vdev
->entries
, intr_cnt
);
2317 vxge_debug_init(VXGE_ERR
,
2318 "%s: MSI-X enabled for %d vectors",
2319 VXGE_DRIVER_NAME
, intr_cnt
);
2323 vxge_debug_init(VXGE_ERR
,
2324 "%s: MSI-X enable failed for %d vectors, ret: %d",
2325 VXGE_DRIVER_NAME
, intr_cnt
, ret
);
2326 kfree(vdev
->entries
);
2327 kfree(vdev
->vxge_entries
);
2328 vdev
->entries
= NULL
;
2329 vdev
->vxge_entries
= NULL
;
2335 static int vxge_enable_msix(struct vxgedev
*vdev
)
2339 enum vxge_hw_status status
;
2340 /* 0 - Tx, 1 - Rx */
2342 int alarm_msix_id
= 0, msix_intr_vect
= 0;;
2345 /* allocate msix vectors */
2346 ret
= vxge_alloc_msix(vdev
);
2348 /* Last vector in the list is used for alarm */
2350 VXGE_HW_VPATH_MSIX_ACTIVE
* vdev
->no_of_vpath
- 2;
2351 for (i
= 0; i
< vdev
->no_of_vpath
; i
++) {
2353 /* If fifo or ring are not enabled
2354 the MSIX vector for that should be set to 0
2355 Hence initializeing this array to all 0s.
2357 memset(tim_msix_id
, 0, sizeof(tim_msix_id
));
2358 msix_intr_vect
= i
* VXGE_HW_VPATH_MSIX_ACTIVE
;
2359 tim_msix_id
[0] = msix_intr_vect
;
2361 tim_msix_id
[1] = msix_intr_vect
+ 1;
2362 vdev
->vpaths
[i
].ring
.rx_vector_no
= tim_msix_id
[1];
2364 status
= vxge_hw_vpath_msix_set(
2365 vdev
->vpaths
[i
].handle
,
2366 tim_msix_id
, alarm_msix_id
);
2367 if (status
!= VXGE_HW_OK
) {
2368 vxge_debug_init(VXGE_ERR
,
2369 "vxge_hw_vpath_msix_set "
2370 "failed with status : %x", status
);
2371 kfree(vdev
->entries
);
2372 kfree(vdev
->vxge_entries
);
2373 pci_disable_msix(vdev
->pdev
);
2382 static void vxge_rem_msix_isr(struct vxgedev
*vdev
)
2386 for (intr_cnt
= 0; intr_cnt
< (vdev
->max_vpath_supported
* 2 + 1);
2388 if (vdev
->vxge_entries
[intr_cnt
].in_use
) {
2389 synchronize_irq(vdev
->entries
[intr_cnt
].vector
);
2390 free_irq(vdev
->entries
[intr_cnt
].vector
,
2391 vdev
->vxge_entries
[intr_cnt
].arg
);
2392 vdev
->vxge_entries
[intr_cnt
].in_use
= 0;
2396 kfree(vdev
->entries
);
2397 kfree(vdev
->vxge_entries
);
2398 vdev
->entries
= NULL
;
2399 vdev
->vxge_entries
= NULL
;
2401 if (vdev
->config
.intr_type
== MSI_X
)
2402 pci_disable_msix(vdev
->pdev
);
2406 static void vxge_rem_isr(struct vxgedev
*vdev
)
2408 struct __vxge_hw_device
*hldev
;
2409 hldev
= (struct __vxge_hw_device
*) pci_get_drvdata(vdev
->pdev
);
2411 #ifdef CONFIG_PCI_MSI
2412 if (vdev
->config
.intr_type
== MSI_X
) {
2413 vxge_rem_msix_isr(vdev
);
2416 if (vdev
->config
.intr_type
== INTA
) {
2417 synchronize_irq(vdev
->pdev
->irq
);
2418 free_irq(vdev
->pdev
->irq
, hldev
);
2422 static int vxge_add_isr(struct vxgedev
*vdev
)
2425 struct __vxge_hw_device
*hldev
=
2426 (struct __vxge_hw_device
*) pci_get_drvdata(vdev
->pdev
);
2427 #ifdef CONFIG_PCI_MSI
2428 int vp_idx
= 0, intr_idx
= 0, intr_cnt
= 0, msix_idx
= 0, irq_req
= 0;
2429 u64 function_mode
= vdev
->config
.device_hw_info
.function_mode
;
2430 int pci_fun
= PCI_FUNC(vdev
->pdev
->devfn
);
2432 if (vdev
->config
.intr_type
== MSI_X
)
2433 ret
= vxge_enable_msix(vdev
);
2436 vxge_debug_init(VXGE_ERR
,
2437 "%s: Enabling MSI-X Failed", VXGE_DRIVER_NAME
);
2438 if ((function_mode
== VXGE_HW_FUNCTION_MODE_MULTI_FUNCTION
) &&
2439 test_and_set_bit(__VXGE_STATE_CARD_UP
,
2440 &driver_config
->inta_dev_open
))
2441 return VXGE_HW_FAIL
;
2443 vxge_debug_init(VXGE_ERR
,
2444 "%s: Defaulting to INTA", VXGE_DRIVER_NAME
);
2445 vdev
->config
.intr_type
= INTA
;
2446 vxge_hw_device_set_intr_type(vdev
->devh
,
2447 VXGE_HW_INTR_MODE_IRQLINE
);
2448 vxge_close_vpaths(vdev
, 1);
2449 vdev
->no_of_vpath
= 1;
2450 vdev
->stats
.vpaths_open
= 1;
2454 if (vdev
->config
.intr_type
== MSI_X
) {
2456 intr_idx
< (vdev
->no_of_vpath
*
2457 VXGE_HW_VPATH_MSIX_ACTIVE
); intr_idx
++) {
2459 msix_idx
= intr_idx
% VXGE_HW_VPATH_MSIX_ACTIVE
;
2464 snprintf(vdev
->desc
[intr_cnt
], VXGE_INTR_STRLEN
,
2465 "%s:vxge fn: %d vpath: %d Tx MSI-X: %d",
2466 vdev
->ndev
->name
, pci_fun
, vp_idx
,
2467 vdev
->entries
[intr_cnt
].entry
);
2469 vdev
->entries
[intr_cnt
].vector
,
2470 vxge_tx_msix_handle
, 0,
2471 vdev
->desc
[intr_cnt
],
2472 &vdev
->vpaths
[vp_idx
].fifo
);
2473 vdev
->vxge_entries
[intr_cnt
].arg
=
2474 &vdev
->vpaths
[vp_idx
].fifo
;
2478 snprintf(vdev
->desc
[intr_cnt
], VXGE_INTR_STRLEN
,
2479 "%s:vxge fn: %d vpath: %d Rx MSI-X: %d",
2480 vdev
->ndev
->name
, pci_fun
, vp_idx
,
2481 vdev
->entries
[intr_cnt
].entry
);
2483 vdev
->entries
[intr_cnt
].vector
,
2484 vxge_rx_msix_napi_handle
,
2486 vdev
->desc
[intr_cnt
],
2487 &vdev
->vpaths
[vp_idx
].ring
);
2488 vdev
->vxge_entries
[intr_cnt
].arg
=
2489 &vdev
->vpaths
[vp_idx
].ring
;
2495 vxge_debug_init(VXGE_ERR
,
2496 "%s: MSIX - %d Registration failed",
2497 vdev
->ndev
->name
, intr_cnt
);
2498 vxge_rem_msix_isr(vdev
);
2499 if ((function_mode
==
2500 VXGE_HW_FUNCTION_MODE_MULTI_FUNCTION
) &&
2501 test_and_set_bit(__VXGE_STATE_CARD_UP
,
2502 &driver_config
->inta_dev_open
))
2503 return VXGE_HW_FAIL
;
2505 vxge_hw_device_set_intr_type(
2507 VXGE_HW_INTR_MODE_IRQLINE
);
2508 vdev
->config
.intr_type
= INTA
;
2509 vxge_debug_init(VXGE_ERR
,
2510 "%s: Defaulting to INTA"
2511 , vdev
->ndev
->name
);
2512 vxge_close_vpaths(vdev
, 1);
2513 vdev
->no_of_vpath
= 1;
2514 vdev
->stats
.vpaths_open
= 1;
2520 /* We requested for this msix interrupt */
2521 vdev
->vxge_entries
[intr_cnt
].in_use
= 1;
2522 vxge_hw_vpath_msix_unmask(
2523 vdev
->vpaths
[vp_idx
].handle
,
2528 /* Point to next vpath handler */
2529 if (((intr_idx
+ 1) % VXGE_HW_VPATH_MSIX_ACTIVE
== 0)
2530 && (vp_idx
< (vdev
->no_of_vpath
- 1)))
2534 intr_cnt
= vdev
->max_vpath_supported
* 2;
2535 snprintf(vdev
->desc
[intr_cnt
], VXGE_INTR_STRLEN
,
2536 "%s:vxge Alarm fn: %d MSI-X: %d",
2537 vdev
->ndev
->name
, pci_fun
,
2538 vdev
->entries
[intr_cnt
].entry
);
2539 /* For Alarm interrupts */
2540 ret
= request_irq(vdev
->entries
[intr_cnt
].vector
,
2541 vxge_alarm_msix_handle
, 0,
2542 vdev
->desc
[intr_cnt
],
2543 &vdev
->vpaths
[vp_idx
]);
2545 vxge_debug_init(VXGE_ERR
,
2546 "%s: MSIX - %d Registration failed",
2547 vdev
->ndev
->name
, intr_cnt
);
2548 vxge_rem_msix_isr(vdev
);
2549 if ((function_mode
==
2550 VXGE_HW_FUNCTION_MODE_MULTI_FUNCTION
) &&
2551 test_and_set_bit(__VXGE_STATE_CARD_UP
,
2552 &driver_config
->inta_dev_open
))
2553 return VXGE_HW_FAIL
;
2555 vxge_hw_device_set_intr_type(vdev
->devh
,
2556 VXGE_HW_INTR_MODE_IRQLINE
);
2557 vdev
->config
.intr_type
= INTA
;
2558 vxge_debug_init(VXGE_ERR
,
2559 "%s: Defaulting to INTA",
2561 vxge_close_vpaths(vdev
, 1);
2562 vdev
->no_of_vpath
= 1;
2563 vdev
->stats
.vpaths_open
= 1;
2568 vxge_hw_vpath_msix_unmask(vdev
->vpaths
[vp_idx
].handle
,
2570 vdev
->vxge_entries
[intr_cnt
].in_use
= 1;
2571 vdev
->vxge_entries
[intr_cnt
].arg
= &vdev
->vpaths
[vp_idx
];
2575 snprintf(vdev
->desc
[0], VXGE_INTR_STRLEN
, "%s:vxge", vdev
->ndev
->name
);
2577 if (vdev
->config
.intr_type
== INTA
) {
2578 ret
= request_irq((int) vdev
->pdev
->irq
,
2580 IRQF_SHARED
, vdev
->desc
[0], hldev
);
2582 vxge_debug_init(VXGE_ERR
,
2583 "%s %s-%d: ISR registration failed",
2584 VXGE_DRIVER_NAME
, "IRQ", vdev
->pdev
->irq
);
2587 vxge_debug_init(VXGE_TRACE
,
2588 "new %s-%d line allocated",
2589 "IRQ", vdev
->pdev
->irq
);
2595 static void vxge_poll_vp_reset(unsigned long data
)
2597 struct vxgedev
*vdev
= (struct vxgedev
*)data
;
2600 for (i
= 0; i
< vdev
->no_of_vpath
; i
++) {
2601 if (test_bit(i
, &vdev
->vp_reset
)) {
2602 vxge_reset_vpath(vdev
, i
);
2606 if (j
&& (vdev
->config
.intr_type
!= MSI_X
)) {
2607 vxge_hw_device_unmask_all(vdev
->devh
);
2608 vxge_hw_device_flush_io(vdev
->devh
);
2611 mod_timer(&vdev
->vp_reset_timer
, jiffies
+ HZ
/ 2);
2614 static void vxge_poll_vp_lockup(unsigned long data
)
2616 struct vxgedev
*vdev
= (struct vxgedev
*)data
;
2618 struct vxge_ring
*ring
;
2619 enum vxge_hw_status status
= VXGE_HW_OK
;
2621 for (i
= 0; i
< vdev
->no_of_vpath
; i
++) {
2622 ring
= &vdev
->vpaths
[i
].ring
;
2623 /* Did this vpath received any packets */
2624 if (ring
->stats
.prev_rx_frms
== ring
->stats
.rx_frms
) {
2625 status
= vxge_hw_vpath_check_leak(ring
->handle
);
2627 /* Did it received any packets last time */
2628 if ((VXGE_HW_FAIL
== status
) &&
2629 (VXGE_HW_FAIL
== ring
->last_status
)) {
2631 /* schedule vpath reset */
2632 if (!test_and_set_bit(i
, &vdev
->vp_reset
)) {
2634 /* disable interrupts for this vpath */
2635 vxge_vpath_intr_disable(vdev
, i
);
2637 /* stop the queue for this vpath */
2638 vxge_stop_tx_queue(&vdev
->vpaths
[i
].
2644 ring
->stats
.prev_rx_frms
= ring
->stats
.rx_frms
;
2645 ring
->last_status
= status
;
2648 /* Check every 1 milli second */
2649 mod_timer(&vdev
->vp_lockup_timer
, jiffies
+ HZ
/ 1000);
2654 * @dev: pointer to the device structure.
2656 * This function is the open entry point of the driver. It mainly calls a
2657 * function to allocate Rx buffers and inserts them into the buffer
2658 * descriptors and then enables the Rx part of the NIC.
2659 * Return value: '0' on success and an appropriate (-)ve integer as
2660 * defined in errno.h file on failure.
2663 vxge_open(struct net_device
*dev
)
2665 enum vxge_hw_status status
;
2666 struct vxgedev
*vdev
;
2667 struct __vxge_hw_device
*hldev
;
2670 u64 val64
, function_mode
;
2671 vxge_debug_entryexit(VXGE_TRACE
,
2672 "%s: %s:%d", dev
->name
, __func__
, __LINE__
);
2674 vdev
= (struct vxgedev
*)netdev_priv(dev
);
2675 hldev
= (struct __vxge_hw_device
*) pci_get_drvdata(vdev
->pdev
);
2676 function_mode
= vdev
->config
.device_hw_info
.function_mode
;
2678 /* make sure you have link off by default every time Nic is
2680 netif_carrier_off(dev
);
2682 /* Check for another device already opn with INTA */
2683 if ((function_mode
== VXGE_HW_FUNCTION_MODE_MULTI_FUNCTION
) &&
2684 test_bit(__VXGE_STATE_CARD_UP
, &driver_config
->inta_dev_open
)) {
2690 status
= vxge_open_vpaths(vdev
);
2691 if (status
!= VXGE_HW_OK
) {
2692 vxge_debug_init(VXGE_ERR
,
2693 "%s: fatal: Vpath open failed", vdev
->ndev
->name
);
2698 vdev
->mtu
= dev
->mtu
;
2700 status
= vxge_add_isr(vdev
);
2701 if (status
!= VXGE_HW_OK
) {
2702 vxge_debug_init(VXGE_ERR
,
2703 "%s: fatal: ISR add failed", dev
->name
);
2709 if (vdev
->config
.intr_type
!= MSI_X
) {
2710 netif_napi_add(dev
, &vdev
->napi
, vxge_poll_inta
,
2711 vdev
->config
.napi_weight
);
2712 napi_enable(&vdev
->napi
);
2714 for (i
= 0; i
< vdev
->no_of_vpath
; i
++) {
2715 netif_napi_add(dev
, &vdev
->vpaths
[i
].ring
.napi
,
2716 vxge_poll_msix
, vdev
->config
.napi_weight
);
2717 napi_enable(&vdev
->vpaths
[i
].ring
.napi
);
2722 if (vdev
->config
.rth_steering
) {
2723 status
= vxge_rth_configure(vdev
);
2724 if (status
!= VXGE_HW_OK
) {
2725 vxge_debug_init(VXGE_ERR
,
2726 "%s: fatal: RTH configuration failed",
2733 for (i
= 0; i
< vdev
->no_of_vpath
; i
++) {
2734 /* set initial mtu before enabling the device */
2735 status
= vxge_hw_vpath_mtu_set(vdev
->vpaths
[i
].handle
,
2737 if (status
!= VXGE_HW_OK
) {
2738 vxge_debug_init(VXGE_ERR
,
2739 "%s: fatal: can not set new MTU", dev
->name
);
2745 VXGE_DEVICE_DEBUG_LEVEL_SET(VXGE_TRACE
, VXGE_COMPONENT_LL
, vdev
);
2746 vxge_debug_init(vdev
->level_trace
,
2747 "%s: MTU is %d", vdev
->ndev
->name
, vdev
->mtu
);
2748 VXGE_DEVICE_DEBUG_LEVEL_SET(VXGE_ERR
, VXGE_COMPONENT_LL
, vdev
);
2750 /* Reprogram the DA table with populated mac addresses */
2751 for (i
= 0; i
< vdev
->no_of_vpath
; i
++) {
2752 vxge_restore_vpath_mac_addr(&vdev
->vpaths
[i
]);
2753 vxge_restore_vpath_vid_table(&vdev
->vpaths
[i
]);
2756 /* Enable vpath to sniff all unicast/multicast traffic that not
2757 * addressed to them. We allow promiscous mode for PF only
2761 for (i
= 0; i
< VXGE_HW_MAX_VIRTUAL_PATHS
; i
++)
2762 val64
|= VXGE_HW_RXMAC_AUTHORIZE_ALL_ADDR_VP(i
);
2764 vxge_hw_mgmt_reg_write(vdev
->devh
,
2765 vxge_hw_mgmt_reg_type_mrpcim
,
2767 (ulong
)offsetof(struct vxge_hw_mrpcim_reg
,
2768 rxmac_authorize_all_addr
),
2771 vxge_hw_mgmt_reg_write(vdev
->devh
,
2772 vxge_hw_mgmt_reg_type_mrpcim
,
2774 (ulong
)offsetof(struct vxge_hw_mrpcim_reg
,
2775 rxmac_authorize_all_vid
),
2778 vxge_set_multicast(dev
);
2780 /* Enabling Bcast and mcast for all vpath */
2781 for (i
= 0; i
< vdev
->no_of_vpath
; i
++) {
2782 status
= vxge_hw_vpath_bcast_enable(vdev
->vpaths
[i
].handle
);
2783 if (status
!= VXGE_HW_OK
)
2784 vxge_debug_init(VXGE_ERR
,
2785 "%s : Can not enable bcast for vpath "
2786 "id %d", dev
->name
, i
);
2787 if (vdev
->config
.addr_learn_en
) {
2789 vxge_hw_vpath_mcast_enable(vdev
->vpaths
[i
].handle
);
2790 if (status
!= VXGE_HW_OK
)
2791 vxge_debug_init(VXGE_ERR
,
2792 "%s : Can not enable mcast for vpath "
2793 "id %d", dev
->name
, i
);
2797 vxge_hw_device_setpause_data(vdev
->devh
, 0,
2798 vdev
->config
.tx_pause_enable
,
2799 vdev
->config
.rx_pause_enable
);
2801 if (vdev
->vp_reset_timer
.function
== NULL
)
2802 vxge_os_timer(vdev
->vp_reset_timer
,
2803 vxge_poll_vp_reset
, vdev
, (HZ
/2));
2805 if (vdev
->vp_lockup_timer
.function
== NULL
)
2806 vxge_os_timer(vdev
->vp_lockup_timer
,
2807 vxge_poll_vp_lockup
, vdev
, (HZ
/2));
2809 set_bit(__VXGE_STATE_CARD_UP
, &vdev
->state
);
2813 if (vxge_hw_device_link_state_get(vdev
->devh
) == VXGE_HW_LINK_UP
) {
2814 netif_carrier_on(vdev
->ndev
);
2815 printk(KERN_NOTICE
"%s: Link Up\n", vdev
->ndev
->name
);
2816 vdev
->stats
.link_up
++;
2819 vxge_hw_device_intr_enable(vdev
->devh
);
2823 for (i
= 0; i
< vdev
->no_of_vpath
; i
++) {
2824 vxge_hw_vpath_enable(vdev
->vpaths
[i
].handle
);
2826 vxge_hw_vpath_rx_doorbell_init(vdev
->vpaths
[i
].handle
);
2829 vxge_start_all_tx_queue(vdev
);
2836 if (vdev
->config
.intr_type
!= MSI_X
)
2837 napi_disable(&vdev
->napi
);
2839 for (i
= 0; i
< vdev
->no_of_vpath
; i
++)
2840 napi_disable(&vdev
->vpaths
[i
].ring
.napi
);
2844 vxge_close_vpaths(vdev
, 0);
2846 vxge_debug_entryexit(VXGE_TRACE
,
2847 "%s: %s:%d Exiting...",
2848 dev
->name
, __func__
, __LINE__
);
2852 /* Loop throught the mac address list and delete all the entries */
2853 void vxge_free_mac_add_list(struct vxge_vpath
*vpath
)
2856 struct list_head
*entry
, *next
;
2857 if (list_empty(&vpath
->mac_addr_list
))
2860 list_for_each_safe(entry
, next
, &vpath
->mac_addr_list
) {
2862 kfree((struct vxge_mac_addrs
*)entry
);
2866 static void vxge_napi_del_all(struct vxgedev
*vdev
)
2869 if (vdev
->config
.intr_type
!= MSI_X
)
2870 netif_napi_del(&vdev
->napi
);
2872 for (i
= 0; i
< vdev
->no_of_vpath
; i
++)
2873 netif_napi_del(&vdev
->vpaths
[i
].ring
.napi
);
2878 int do_vxge_close(struct net_device
*dev
, int do_io
)
2880 enum vxge_hw_status status
;
2881 struct vxgedev
*vdev
;
2882 struct __vxge_hw_device
*hldev
;
2884 u64 val64
, vpath_vector
;
2885 vxge_debug_entryexit(VXGE_TRACE
, "%s: %s:%d",
2886 dev
->name
, __func__
, __LINE__
);
2888 vdev
= (struct vxgedev
*)netdev_priv(dev
);
2889 hldev
= (struct __vxge_hw_device
*) pci_get_drvdata(vdev
->pdev
);
2891 /* If vxge_handle_crit_err task is executing,
2892 * wait till it completes. */
2893 while (test_and_set_bit(__VXGE_STATE_RESET_CARD
, &vdev
->state
))
2896 clear_bit(__VXGE_STATE_CARD_UP
, &vdev
->state
);
2898 /* Put the vpath back in normal mode */
2899 vpath_vector
= vxge_mBIT(vdev
->vpaths
[0].device_id
);
2900 status
= vxge_hw_mgmt_reg_read(vdev
->devh
,
2901 vxge_hw_mgmt_reg_type_mrpcim
,
2904 struct vxge_hw_mrpcim_reg
,
2905 rts_mgr_cbasin_cfg
),
2908 if (status
== VXGE_HW_OK
) {
2909 val64
&= ~vpath_vector
;
2910 status
= vxge_hw_mgmt_reg_write(vdev
->devh
,
2911 vxge_hw_mgmt_reg_type_mrpcim
,
2914 struct vxge_hw_mrpcim_reg
,
2915 rts_mgr_cbasin_cfg
),
2919 /* Remove the function 0 from promiscous mode */
2920 vxge_hw_mgmt_reg_write(vdev
->devh
,
2921 vxge_hw_mgmt_reg_type_mrpcim
,
2923 (ulong
)offsetof(struct vxge_hw_mrpcim_reg
,
2924 rxmac_authorize_all_addr
),
2927 vxge_hw_mgmt_reg_write(vdev
->devh
,
2928 vxge_hw_mgmt_reg_type_mrpcim
,
2930 (ulong
)offsetof(struct vxge_hw_mrpcim_reg
,
2931 rxmac_authorize_all_vid
),
2936 del_timer_sync(&vdev
->vp_lockup_timer
);
2938 del_timer_sync(&vdev
->vp_reset_timer
);
2941 if (vdev
->config
.intr_type
!= MSI_X
)
2942 napi_disable(&vdev
->napi
);
2944 for (i
= 0; i
< vdev
->no_of_vpath
; i
++)
2945 napi_disable(&vdev
->vpaths
[i
].ring
.napi
);
2948 netif_carrier_off(vdev
->ndev
);
2949 printk(KERN_NOTICE
"%s: Link Down\n", vdev
->ndev
->name
);
2950 vxge_stop_all_tx_queue(vdev
);
2952 /* Note that at this point xmit() is stopped by upper layer */
2954 vxge_hw_device_intr_disable(vdev
->devh
);
2960 vxge_napi_del_all(vdev
);
2963 vxge_reset_all_vpaths(vdev
);
2965 vxge_close_vpaths(vdev
, 0);
2967 vxge_debug_entryexit(VXGE_TRACE
,
2968 "%s: %s:%d Exiting...", dev
->name
, __func__
, __LINE__
);
2970 clear_bit(__VXGE_STATE_CARD_UP
, &driver_config
->inta_dev_open
);
2971 clear_bit(__VXGE_STATE_RESET_CARD
, &vdev
->state
);
2978 * @dev: device pointer.
2980 * This is the stop entry point of the driver. It needs to undo exactly
2981 * whatever was done by the open entry point, thus it's usually referred to
2982 * as the close function.Among other things this function mainly stops the
2983 * Rx side of the NIC and frees all the Rx buffers in the Rx rings.
2984 * Return value: '0' on success and an appropriate (-)ve integer as
2985 * defined in errno.h file on failure.
2988 vxge_close(struct net_device
*dev
)
2990 do_vxge_close(dev
, 1);
2996 * @dev: net device pointer.
2997 * @new_mtu :the new MTU size for the device.
2999 * A driver entry point to change MTU size for the device. Before changing
3000 * the MTU the device must be stopped.
3002 static int vxge_change_mtu(struct net_device
*dev
, int new_mtu
)
3004 struct vxgedev
*vdev
= netdev_priv(dev
);
3006 vxge_debug_entryexit(vdev
->level_trace
,
3007 "%s:%d", __func__
, __LINE__
);
3008 if ((new_mtu
< VXGE_HW_MIN_MTU
) || (new_mtu
> VXGE_HW_MAX_MTU
)) {
3009 vxge_debug_init(vdev
->level_err
,
3010 "%s: mtu size is invalid", dev
->name
);
3014 /* check if device is down already */
3015 if (unlikely(!is_vxge_card_up(vdev
))) {
3016 /* just store new value, will use later on open() */
3018 vxge_debug_init(vdev
->level_err
,
3019 "%s", "device is down on MTU change");
3023 vxge_debug_init(vdev
->level_trace
,
3024 "trying to apply new MTU %d", new_mtu
);
3026 if (vxge_close(dev
))
3030 vdev
->mtu
= new_mtu
;
3035 vxge_debug_init(vdev
->level_trace
,
3036 "%s: MTU changed to %d", vdev
->ndev
->name
, new_mtu
);
3038 vxge_debug_entryexit(vdev
->level_trace
,
3039 "%s:%d Exiting...", __func__
, __LINE__
);
3046 * @dev: pointer to the device structure
3048 * Updates the device statistics structure. This function updates the device
3049 * statistics structure in the net_device structure and returns a pointer
3052 static struct net_device_stats
*
3053 vxge_get_stats(struct net_device
*dev
)
3055 struct vxgedev
*vdev
;
3056 struct net_device_stats
*net_stats
;
3059 vdev
= netdev_priv(dev
);
3061 net_stats
= &vdev
->stats
.net_stats
;
3063 memset(net_stats
, 0, sizeof(struct net_device_stats
));
3065 for (k
= 0; k
< vdev
->no_of_vpath
; k
++) {
3066 net_stats
->rx_packets
+= vdev
->vpaths
[k
].ring
.stats
.rx_frms
;
3067 net_stats
->rx_bytes
+= vdev
->vpaths
[k
].ring
.stats
.rx_bytes
;
3068 net_stats
->rx_errors
+= vdev
->vpaths
[k
].ring
.stats
.rx_errors
;
3069 net_stats
->multicast
+= vdev
->vpaths
[k
].ring
.stats
.rx_mcast
;
3070 net_stats
->rx_dropped
+=
3071 vdev
->vpaths
[k
].ring
.stats
.rx_dropped
;
3073 net_stats
->tx_packets
+= vdev
->vpaths
[k
].fifo
.stats
.tx_frms
;
3074 net_stats
->tx_bytes
+= vdev
->vpaths
[k
].fifo
.stats
.tx_bytes
;
3075 net_stats
->tx_errors
+= vdev
->vpaths
[k
].fifo
.stats
.tx_errors
;
3083 * @dev: Device pointer.
3084 * @ifr: An IOCTL specific structure, that can contain a pointer to
3085 * a proprietary structure used to pass information to the driver.
3086 * @cmd: This is used to distinguish between the different commands that
3087 * can be passed to the IOCTL functions.
3089 * Entry point for the Ioctl.
3091 static int vxge_ioctl(struct net_device
*dev
, struct ifreq
*rq
, int cmd
)
3098 * @dev: pointer to net device structure
3100 * Watchdog for transmit side.
3101 * This function is triggered if the Tx Queue is stopped
3102 * for a pre-defined amount of time when the Interface is still up.
3105 vxge_tx_watchdog(struct net_device
*dev
)
3107 struct vxgedev
*vdev
;
3109 vxge_debug_entryexit(VXGE_TRACE
, "%s:%d", __func__
, __LINE__
);
3111 vdev
= (struct vxgedev
*)netdev_priv(dev
);
3113 vdev
->cric_err_event
= VXGE_HW_EVENT_RESET_START
;
3116 vxge_debug_entryexit(VXGE_TRACE
,
3117 "%s:%d Exiting...", __func__
, __LINE__
);
3121 * vxge_vlan_rx_register
3122 * @dev: net device pointer.
3125 * Vlan group registration
3128 vxge_vlan_rx_register(struct net_device
*dev
, struct vlan_group
*grp
)
3130 struct vxgedev
*vdev
;
3131 struct vxge_vpath
*vpath
;
3134 enum vxge_hw_status status
;
3137 vxge_debug_entryexit(VXGE_TRACE
, "%s:%d", __func__
, __LINE__
);
3139 vdev
= (struct vxgedev
*)netdev_priv(dev
);
3141 vpath
= &vdev
->vpaths
[0];
3142 if ((NULL
== grp
) && (vpath
->is_open
)) {
3143 /* Get the first vlan */
3144 status
= vxge_hw_vpath_vid_get(vpath
->handle
, &vid
);
3146 while (status
== VXGE_HW_OK
) {
3148 /* Delete this vlan from the vid table */
3149 for (vp
= 0; vp
< vdev
->no_of_vpath
; vp
++) {
3150 vpath
= &vdev
->vpaths
[vp
];
3151 if (!vpath
->is_open
)
3154 vxge_hw_vpath_vid_delete(vpath
->handle
, vid
);
3157 /* Get the next vlan to be deleted */
3158 vpath
= &vdev
->vpaths
[0];
3159 status
= vxge_hw_vpath_vid_get(vpath
->handle
, &vid
);
3165 for (i
= 0; i
< vdev
->no_of_vpath
; i
++) {
3166 if (vdev
->vpaths
[i
].is_configured
)
3167 vdev
->vpaths
[i
].ring
.vlgrp
= grp
;
3170 vxge_debug_entryexit(VXGE_TRACE
,
3171 "%s:%d Exiting...", __func__
, __LINE__
);
3175 * vxge_vlan_rx_add_vid
3176 * @dev: net device pointer.
3179 * Add the vlan id to the devices vlan id table
3182 vxge_vlan_rx_add_vid(struct net_device
*dev
, unsigned short vid
)
3184 struct vxgedev
*vdev
;
3185 struct vxge_vpath
*vpath
;
3188 vdev
= (struct vxgedev
*)netdev_priv(dev
);
3190 /* Add these vlan to the vid table */
3191 for (vp_id
= 0; vp_id
< vdev
->no_of_vpath
; vp_id
++) {
3192 vpath
= &vdev
->vpaths
[vp_id
];
3193 if (!vpath
->is_open
)
3195 vxge_hw_vpath_vid_add(vpath
->handle
, vid
);
3200 * vxge_vlan_rx_add_vid
3201 * @dev: net device pointer.
3204 * Remove the vlan id from the device's vlan id table
3207 vxge_vlan_rx_kill_vid(struct net_device
*dev
, unsigned short vid
)
3209 struct vxgedev
*vdev
;
3210 struct vxge_vpath
*vpath
;
3213 vxge_debug_entryexit(VXGE_TRACE
, "%s:%d", __func__
, __LINE__
);
3215 vdev
= (struct vxgedev
*)netdev_priv(dev
);
3217 vlan_group_set_device(vdev
->vlgrp
, vid
, NULL
);
3219 /* Delete this vlan from the vid table */
3220 for (vp_id
= 0; vp_id
< vdev
->no_of_vpath
; vp_id
++) {
3221 vpath
= &vdev
->vpaths
[vp_id
];
3222 if (!vpath
->is_open
)
3224 vxge_hw_vpath_vid_delete(vpath
->handle
, vid
);
3226 vxge_debug_entryexit(VXGE_TRACE
,
3227 "%s:%d Exiting...", __func__
, __LINE__
);
3230 static const struct net_device_ops vxge_netdev_ops
= {
3231 .ndo_open
= vxge_open
,
3232 .ndo_stop
= vxge_close
,
3233 .ndo_get_stats
= vxge_get_stats
,
3234 .ndo_start_xmit
= vxge_xmit
,
3235 .ndo_validate_addr
= eth_validate_addr
,
3236 .ndo_set_multicast_list
= vxge_set_multicast
,
3238 .ndo_do_ioctl
= vxge_ioctl
,
3240 .ndo_set_mac_address
= vxge_set_mac_addr
,
3241 .ndo_change_mtu
= vxge_change_mtu
,
3242 .ndo_vlan_rx_register
= vxge_vlan_rx_register
,
3243 .ndo_vlan_rx_kill_vid
= vxge_vlan_rx_kill_vid
,
3244 .ndo_vlan_rx_add_vid
= vxge_vlan_rx_add_vid
,
3246 .ndo_tx_timeout
= vxge_tx_watchdog
,
3247 #ifdef CONFIG_NET_POLL_CONTROLLER
3248 .ndo_poll_controller
= vxge_netpoll
,
3252 int __devinit
vxge_device_register(struct __vxge_hw_device
*hldev
,
3253 struct vxge_config
*config
,
3254 int high_dma
, int no_of_vpath
,
3255 struct vxgedev
**vdev_out
)
3257 struct net_device
*ndev
;
3258 enum vxge_hw_status status
= VXGE_HW_OK
;
3259 struct vxgedev
*vdev
;
3260 int i
, ret
= 0, no_of_queue
= 1;
3264 if (config
->tx_steering_type
== TX_MULTIQ_STEERING
)
3265 no_of_queue
= no_of_vpath
;
3267 ndev
= alloc_etherdev_mq(sizeof(struct vxgedev
),
3271 vxge_hw_device_trace_level_get(hldev
),
3272 "%s : device allocation failed", __func__
);
3277 vxge_debug_entryexit(
3278 vxge_hw_device_trace_level_get(hldev
),
3279 "%s: %s:%d Entering...",
3280 ndev
->name
, __func__
, __LINE__
);
3282 vdev
= netdev_priv(ndev
);
3283 memset(vdev
, 0, sizeof(struct vxgedev
));
3287 vdev
->pdev
= hldev
->pdev
;
3288 memcpy(&vdev
->config
, config
, sizeof(struct vxge_config
));
3289 vdev
->rx_csum
= 1; /* Enable Rx CSUM by default. */
3291 SET_NETDEV_DEV(ndev
, &vdev
->pdev
->dev
);
3293 ndev
->features
|= NETIF_F_HW_VLAN_TX
| NETIF_F_HW_VLAN_RX
|
3294 NETIF_F_HW_VLAN_FILTER
;
3295 /* Driver entry points */
3296 ndev
->irq
= vdev
->pdev
->irq
;
3297 ndev
->base_addr
= (unsigned long) hldev
->bar0
;
3299 ndev
->netdev_ops
= &vxge_netdev_ops
;
3301 ndev
->watchdog_timeo
= VXGE_LL_WATCH_DOG_TIMEOUT
;
3303 initialize_ethtool_ops(ndev
);
3305 /* Allocate memory for vpath */
3306 vdev
->vpaths
= kzalloc((sizeof(struct vxge_vpath
)) *
3307 no_of_vpath
, GFP_KERNEL
);
3308 if (!vdev
->vpaths
) {
3309 vxge_debug_init(VXGE_ERR
,
3310 "%s: vpath memory allocation failed",
3316 ndev
->features
|= NETIF_F_SG
;
3318 ndev
->features
|= NETIF_F_HW_CSUM
;
3319 vxge_debug_init(vxge_hw_device_trace_level_get(hldev
),
3320 "%s : checksuming enabled", __func__
);
3323 ndev
->features
|= NETIF_F_HIGHDMA
;
3324 vxge_debug_init(vxge_hw_device_trace_level_get(hldev
),
3325 "%s : using High DMA", __func__
);
3328 ndev
->features
|= NETIF_F_TSO
| NETIF_F_TSO6
;
3330 if (vdev
->config
.gro_enable
)
3331 ndev
->features
|= NETIF_F_GRO
;
3333 if (vdev
->config
.tx_steering_type
== TX_MULTIQ_STEERING
)
3334 ndev
->real_num_tx_queues
= no_of_vpath
;
3337 ndev
->features
|= NETIF_F_LLTX
;
3340 for (i
= 0; i
< no_of_vpath
; i
++)
3341 spin_lock_init(&vdev
->vpaths
[i
].fifo
.tx_lock
);
3343 if (register_netdev(ndev
)) {
3344 vxge_debug_init(vxge_hw_device_trace_level_get(hldev
),
3345 "%s: %s : device registration failed!",
3346 ndev
->name
, __func__
);
3351 /* Set the factory defined MAC address initially */
3352 ndev
->addr_len
= ETH_ALEN
;
3354 /* Make Link state as off at this point, when the Link change
3355 * interrupt comes the state will be automatically changed to
3358 netif_carrier_off(ndev
);
3360 vxge_debug_init(vxge_hw_device_trace_level_get(hldev
),
3361 "%s: Ethernet device registered",
3366 /* Resetting the Device stats */
3367 status
= vxge_hw_mrpcim_stats_access(
3369 VXGE_HW_STATS_OP_CLEAR_ALL_STATS
,
3374 if (status
== VXGE_HW_ERR_PRIVILAGED_OPEARATION
)
3376 vxge_hw_device_trace_level_get(hldev
),
3377 "%s: device stats clear returns"
3378 "VXGE_HW_ERR_PRIVILAGED_OPEARATION", ndev
->name
);
3380 vxge_debug_entryexit(vxge_hw_device_trace_level_get(hldev
),
3381 "%s: %s:%d Exiting...",
3382 ndev
->name
, __func__
, __LINE__
);
3386 kfree(vdev
->vpaths
);
3394 * vxge_device_unregister
3396 * This function will unregister and free network device
3399 vxge_device_unregister(struct __vxge_hw_device
*hldev
)
3401 struct vxgedev
*vdev
;
3402 struct net_device
*dev
;
3404 #if ((VXGE_DEBUG_INIT & VXGE_DEBUG_MASK) || \
3405 (VXGE_DEBUG_ENTRYEXIT & VXGE_DEBUG_MASK))
3410 vdev
= netdev_priv(dev
);
3411 #if ((VXGE_DEBUG_INIT & VXGE_DEBUG_MASK) || \
3412 (VXGE_DEBUG_ENTRYEXIT & VXGE_DEBUG_MASK))
3413 level_trace
= vdev
->level_trace
;
3415 vxge_debug_entryexit(level_trace
,
3416 "%s: %s:%d", vdev
->ndev
->name
, __func__
, __LINE__
);
3418 memcpy(buf
, vdev
->ndev
->name
, IFNAMSIZ
);
3420 /* in 2.6 will call stop() if device is up */
3421 unregister_netdev(dev
);
3423 flush_scheduled_work();
3425 vxge_debug_init(level_trace
, "%s: ethernet device unregistered", buf
);
3426 vxge_debug_entryexit(level_trace
,
3427 "%s: %s:%d Exiting...", buf
, __func__
, __LINE__
);
3431 * vxge_callback_crit_err
3433 * This function is called by the alarm handler in interrupt context.
3434 * Driver must analyze it based on the event type.
3437 vxge_callback_crit_err(struct __vxge_hw_device
*hldev
,
3438 enum vxge_hw_event type
, u64 vp_id
)
3440 struct net_device
*dev
= hldev
->ndev
;
3441 struct vxgedev
*vdev
= (struct vxgedev
*)netdev_priv(dev
);
3444 vxge_debug_entryexit(vdev
->level_trace
,
3445 "%s: %s:%d", vdev
->ndev
->name
, __func__
, __LINE__
);
3447 /* Note: This event type should be used for device wide
3448 * indications only - Serious errors, Slot freeze and critical errors
3450 vdev
->cric_err_event
= type
;
3452 for (vpath_idx
= 0; vpath_idx
< vdev
->no_of_vpath
; vpath_idx
++)
3453 if (vdev
->vpaths
[vpath_idx
].device_id
== vp_id
)
3456 if (!test_bit(__VXGE_STATE_RESET_CARD
, &vdev
->state
)) {
3457 if (type
== VXGE_HW_EVENT_SLOT_FREEZE
) {
3458 vxge_debug_init(VXGE_ERR
,
3459 "%s: Slot is frozen", vdev
->ndev
->name
);
3460 } else if (type
== VXGE_HW_EVENT_SERR
) {
3461 vxge_debug_init(VXGE_ERR
,
3462 "%s: Encountered Serious Error",
3464 } else if (type
== VXGE_HW_EVENT_CRITICAL_ERR
)
3465 vxge_debug_init(VXGE_ERR
,
3466 "%s: Encountered Critical Error",
3470 if ((type
== VXGE_HW_EVENT_SERR
) ||
3471 (type
== VXGE_HW_EVENT_SLOT_FREEZE
)) {
3472 if (unlikely(vdev
->exec_mode
))
3473 clear_bit(__VXGE_STATE_CARD_UP
, &vdev
->state
);
3474 } else if (type
== VXGE_HW_EVENT_CRITICAL_ERR
) {
3475 vxge_hw_device_mask_all(hldev
);
3476 if (unlikely(vdev
->exec_mode
))
3477 clear_bit(__VXGE_STATE_CARD_UP
, &vdev
->state
);
3478 } else if ((type
== VXGE_HW_EVENT_FIFO_ERR
) ||
3479 (type
== VXGE_HW_EVENT_VPATH_ERR
)) {
3481 if (unlikely(vdev
->exec_mode
))
3482 clear_bit(__VXGE_STATE_CARD_UP
, &vdev
->state
);
3484 /* check if this vpath is already set for reset */
3485 if (!test_and_set_bit(vpath_idx
, &vdev
->vp_reset
)) {
3487 /* disable interrupts for this vpath */
3488 vxge_vpath_intr_disable(vdev
, vpath_idx
);
3490 /* stop the queue for this vpath */
3491 vxge_stop_tx_queue(&vdev
->vpaths
[vpath_idx
].
3497 vxge_debug_entryexit(vdev
->level_trace
,
3498 "%s: %s:%d Exiting...",
3499 vdev
->ndev
->name
, __func__
, __LINE__
);
3502 static void verify_bandwidth(void)
3504 int i
, band_width
, total
= 0, equal_priority
= 0;
3506 /* 1. If user enters 0 for some fifo, give equal priority to all */
3507 for (i
= 0; i
< VXGE_HW_MAX_VIRTUAL_PATHS
; i
++) {
3508 if (bw_percentage
[i
] == 0) {
3514 if (!equal_priority
) {
3515 /* 2. If sum exceeds 100, give equal priority to all */
3516 for (i
= 0; i
< VXGE_HW_MAX_VIRTUAL_PATHS
; i
++) {
3517 if (bw_percentage
[i
] == 0xFF)
3520 total
+= bw_percentage
[i
];
3521 if (total
> VXGE_HW_VPATH_BANDWIDTH_MAX
) {
3528 if (!equal_priority
) {
3529 /* Is all the bandwidth consumed? */
3530 if (total
< VXGE_HW_VPATH_BANDWIDTH_MAX
) {
3531 if (i
< VXGE_HW_MAX_VIRTUAL_PATHS
) {
3532 /* Split rest of bw equally among next VPs*/
3534 (VXGE_HW_VPATH_BANDWIDTH_MAX
- total
) /
3535 (VXGE_HW_MAX_VIRTUAL_PATHS
- i
);
3536 if (band_width
< 2) /* min of 2% */
3539 for (; i
< VXGE_HW_MAX_VIRTUAL_PATHS
;
3545 } else if (i
< VXGE_HW_MAX_VIRTUAL_PATHS
)
3549 if (equal_priority
) {
3550 vxge_debug_init(VXGE_ERR
,
3551 "%s: Assigning equal bandwidth to all the vpaths",
3553 bw_percentage
[0] = VXGE_HW_VPATH_BANDWIDTH_MAX
/
3554 VXGE_HW_MAX_VIRTUAL_PATHS
;
3555 for (i
= 1; i
< VXGE_HW_MAX_VIRTUAL_PATHS
; i
++)
3556 bw_percentage
[i
] = bw_percentage
[0];
3563 * Vpath configuration
3565 static int __devinit
vxge_config_vpaths(
3566 struct vxge_hw_device_config
*device_config
,
3567 u64 vpath_mask
, struct vxge_config
*config_param
)
3569 int i
, no_of_vpaths
= 0, default_no_vpath
= 0, temp
;
3570 u32 txdl_size
, txdl_per_memblock
;
3572 temp
= driver_config
->vpath_per_dev
;
3573 if ((driver_config
->vpath_per_dev
== VXGE_USE_DEFAULT
) &&
3574 (max_config_dev
== VXGE_MAX_CONFIG_DEV
)) {
3575 /* No more CPU. Return vpath number as zero.*/
3576 if (driver_config
->g_no_cpus
== -1)
3579 if (!driver_config
->g_no_cpus
)
3580 driver_config
->g_no_cpus
= num_online_cpus();
3582 driver_config
->vpath_per_dev
= driver_config
->g_no_cpus
>> 1;
3583 if (!driver_config
->vpath_per_dev
)
3584 driver_config
->vpath_per_dev
= 1;
3586 for (i
= 0; i
< VXGE_HW_MAX_VIRTUAL_PATHS
; i
++)
3587 if (!vxge_bVALn(vpath_mask
, i
, 1))
3591 if (default_no_vpath
< driver_config
->vpath_per_dev
)
3592 driver_config
->vpath_per_dev
= default_no_vpath
;
3594 driver_config
->g_no_cpus
= driver_config
->g_no_cpus
-
3595 (driver_config
->vpath_per_dev
* 2);
3596 if (driver_config
->g_no_cpus
<= 0)
3597 driver_config
->g_no_cpus
= -1;
3600 if (driver_config
->vpath_per_dev
== 1) {
3601 vxge_debug_ll_config(VXGE_TRACE
,
3602 "%s: Disable tx and rx steering, "
3603 "as single vpath is configured", VXGE_DRIVER_NAME
);
3604 config_param
->rth_steering
= NO_STEERING
;
3605 config_param
->tx_steering_type
= NO_STEERING
;
3606 device_config
->rth_en
= 0;
3609 /* configure bandwidth */
3610 for (i
= 0; i
< VXGE_HW_MAX_VIRTUAL_PATHS
; i
++)
3611 device_config
->vp_config
[i
].min_bandwidth
= bw_percentage
[i
];
3613 for (i
= 0; i
< VXGE_HW_MAX_VIRTUAL_PATHS
; i
++) {
3614 device_config
->vp_config
[i
].vp_id
= i
;
3615 device_config
->vp_config
[i
].mtu
= VXGE_HW_DEFAULT_MTU
;
3616 if (no_of_vpaths
< driver_config
->vpath_per_dev
) {
3617 if (!vxge_bVALn(vpath_mask
, i
, 1)) {
3618 vxge_debug_ll_config(VXGE_TRACE
,
3619 "%s: vpath: %d is not available",
3620 VXGE_DRIVER_NAME
, i
);
3623 vxge_debug_ll_config(VXGE_TRACE
,
3624 "%s: vpath: %d available",
3625 VXGE_DRIVER_NAME
, i
);
3629 vxge_debug_ll_config(VXGE_TRACE
,
3630 "%s: vpath: %d is not configured, "
3631 "max_config_vpath exceeded",
3632 VXGE_DRIVER_NAME
, i
);
3636 /* Configure Tx fifo's */
3637 device_config
->vp_config
[i
].fifo
.enable
=
3638 VXGE_HW_FIFO_ENABLE
;
3639 device_config
->vp_config
[i
].fifo
.max_frags
=
3641 device_config
->vp_config
[i
].fifo
.memblock_size
=
3642 VXGE_HW_MIN_FIFO_MEMBLOCK_SIZE
;
3644 txdl_size
= MAX_SKB_FRAGS
* sizeof(struct vxge_hw_fifo_txd
);
3645 txdl_per_memblock
= VXGE_HW_MIN_FIFO_MEMBLOCK_SIZE
/ txdl_size
;
3647 device_config
->vp_config
[i
].fifo
.fifo_blocks
=
3648 ((VXGE_DEF_FIFO_LENGTH
- 1) / txdl_per_memblock
) + 1;
3650 device_config
->vp_config
[i
].fifo
.intr
=
3651 VXGE_HW_FIFO_QUEUE_INTR_DISABLE
;
3653 /* Configure tti properties */
3654 device_config
->vp_config
[i
].tti
.intr_enable
=
3655 VXGE_HW_TIM_INTR_ENABLE
;
3657 device_config
->vp_config
[i
].tti
.btimer_val
=
3658 (VXGE_TTI_BTIMER_VAL
* 1000) / 272;
3660 device_config
->vp_config
[i
].tti
.timer_ac_en
=
3661 VXGE_HW_TIM_TIMER_AC_ENABLE
;
3663 /* For msi-x with napi (each vector
3664 has a handler of its own) -
3665 Set CI to OFF for all vpaths */
3666 device_config
->vp_config
[i
].tti
.timer_ci_en
=
3667 VXGE_HW_TIM_TIMER_CI_DISABLE
;
3669 device_config
->vp_config
[i
].tti
.timer_ri_en
=
3670 VXGE_HW_TIM_TIMER_RI_DISABLE
;
3672 device_config
->vp_config
[i
].tti
.util_sel
=
3673 VXGE_HW_TIM_UTIL_SEL_LEGACY_TX_NET_UTIL
;
3675 device_config
->vp_config
[i
].tti
.ltimer_val
=
3676 (VXGE_TTI_LTIMER_VAL
* 1000) / 272;
3678 device_config
->vp_config
[i
].tti
.rtimer_val
=
3679 (VXGE_TTI_RTIMER_VAL
* 1000) / 272;
3681 device_config
->vp_config
[i
].tti
.urange_a
= TTI_TX_URANGE_A
;
3682 device_config
->vp_config
[i
].tti
.urange_b
= TTI_TX_URANGE_B
;
3683 device_config
->vp_config
[i
].tti
.urange_c
= TTI_TX_URANGE_C
;
3684 device_config
->vp_config
[i
].tti
.uec_a
= TTI_TX_UFC_A
;
3685 device_config
->vp_config
[i
].tti
.uec_b
= TTI_TX_UFC_B
;
3686 device_config
->vp_config
[i
].tti
.uec_c
= TTI_TX_UFC_C
;
3687 device_config
->vp_config
[i
].tti
.uec_d
= TTI_TX_UFC_D
;
3689 /* Configure Rx rings */
3690 device_config
->vp_config
[i
].ring
.enable
=
3691 VXGE_HW_RING_ENABLE
;
3693 device_config
->vp_config
[i
].ring
.ring_blocks
=
3694 VXGE_HW_DEF_RING_BLOCKS
;
3695 device_config
->vp_config
[i
].ring
.buffer_mode
=
3696 VXGE_HW_RING_RXD_BUFFER_MODE_1
;
3697 device_config
->vp_config
[i
].ring
.rxds_limit
=
3698 VXGE_HW_DEF_RING_RXDS_LIMIT
;
3699 device_config
->vp_config
[i
].ring
.scatter_mode
=
3700 VXGE_HW_RING_SCATTER_MODE_A
;
3702 /* Configure rti properties */
3703 device_config
->vp_config
[i
].rti
.intr_enable
=
3704 VXGE_HW_TIM_INTR_ENABLE
;
3706 device_config
->vp_config
[i
].rti
.btimer_val
=
3707 (VXGE_RTI_BTIMER_VAL
* 1000)/272;
3709 device_config
->vp_config
[i
].rti
.timer_ac_en
=
3710 VXGE_HW_TIM_TIMER_AC_ENABLE
;
3712 device_config
->vp_config
[i
].rti
.timer_ci_en
=
3713 VXGE_HW_TIM_TIMER_CI_DISABLE
;
3715 device_config
->vp_config
[i
].rti
.timer_ri_en
=
3716 VXGE_HW_TIM_TIMER_RI_DISABLE
;
3718 device_config
->vp_config
[i
].rti
.util_sel
=
3719 VXGE_HW_TIM_UTIL_SEL_LEGACY_RX_NET_UTIL
;
3721 device_config
->vp_config
[i
].rti
.urange_a
=
3723 device_config
->vp_config
[i
].rti
.urange_b
=
3725 device_config
->vp_config
[i
].rti
.urange_c
=
3727 device_config
->vp_config
[i
].rti
.uec_a
= RTI_RX_UFC_A
;
3728 device_config
->vp_config
[i
].rti
.uec_b
= RTI_RX_UFC_B
;
3729 device_config
->vp_config
[i
].rti
.uec_c
= RTI_RX_UFC_C
;
3730 device_config
->vp_config
[i
].rti
.uec_d
= RTI_RX_UFC_D
;
3732 device_config
->vp_config
[i
].rti
.rtimer_val
=
3733 (VXGE_RTI_RTIMER_VAL
* 1000) / 272;
3735 device_config
->vp_config
[i
].rti
.ltimer_val
=
3736 (VXGE_RTI_LTIMER_VAL
* 1000) / 272;
3738 device_config
->vp_config
[i
].rpa_strip_vlan_tag
=
3742 driver_config
->vpath_per_dev
= temp
;
3743 return no_of_vpaths
;
3746 /* initialize device configuratrions */
3747 static void __devinit
vxge_device_config_init(
3748 struct vxge_hw_device_config
*device_config
,
3751 /* Used for CQRQ/SRQ. */
3752 device_config
->dma_blockpool_initial
=
3753 VXGE_HW_INITIAL_DMA_BLOCK_POOL_SIZE
;
3755 device_config
->dma_blockpool_max
=
3756 VXGE_HW_MAX_DMA_BLOCK_POOL_SIZE
;
3758 if (max_mac_vpath
> VXGE_MAX_MAC_ADDR_COUNT
)
3759 max_mac_vpath
= VXGE_MAX_MAC_ADDR_COUNT
;
3761 #ifndef CONFIG_PCI_MSI
3762 vxge_debug_init(VXGE_ERR
,
3763 "%s: This Kernel does not support "
3764 "MSI-X. Defaulting to INTA", VXGE_DRIVER_NAME
);
3768 /* Configure whether MSI-X or IRQL. */
3769 switch (*intr_type
) {
3771 device_config
->intr_mode
= VXGE_HW_INTR_MODE_IRQLINE
;
3775 device_config
->intr_mode
= VXGE_HW_INTR_MODE_MSIX
;
3778 /* Timer period between device poll */
3779 device_config
->device_poll_millis
= VXGE_TIMER_DELAY
;
3781 /* Configure mac based steering. */
3782 device_config
->rts_mac_en
= addr_learn_en
;
3784 /* Configure Vpaths */
3785 device_config
->rth_it_type
= VXGE_HW_RTH_IT_TYPE_MULTI_IT
;
3787 vxge_debug_ll_config(VXGE_TRACE
, "%s : Device Config Params ",
3789 vxge_debug_ll_config(VXGE_TRACE
, "dma_blockpool_initial : %d",
3790 device_config
->dma_blockpool_initial
);
3791 vxge_debug_ll_config(VXGE_TRACE
, "dma_blockpool_max : %d",
3792 device_config
->dma_blockpool_max
);
3793 vxge_debug_ll_config(VXGE_TRACE
, "intr_mode : %d",
3794 device_config
->intr_mode
);
3795 vxge_debug_ll_config(VXGE_TRACE
, "device_poll_millis : %d",
3796 device_config
->device_poll_millis
);
3797 vxge_debug_ll_config(VXGE_TRACE
, "rts_mac_en : %d",
3798 device_config
->rts_mac_en
);
3799 vxge_debug_ll_config(VXGE_TRACE
, "rth_en : %d",
3800 device_config
->rth_en
);
3801 vxge_debug_ll_config(VXGE_TRACE
, "rth_it_type : %d",
3802 device_config
->rth_it_type
);
3805 static void __devinit
vxge_print_parm(struct vxgedev
*vdev
, u64 vpath_mask
)
3809 vxge_debug_init(VXGE_TRACE
,
3810 "%s: %d Vpath(s) opened",
3811 vdev
->ndev
->name
, vdev
->no_of_vpath
);
3813 switch (vdev
->config
.intr_type
) {
3815 vxge_debug_init(VXGE_TRACE
,
3816 "%s: Interrupt type INTA", vdev
->ndev
->name
);
3820 vxge_debug_init(VXGE_TRACE
,
3821 "%s: Interrupt type MSI-X", vdev
->ndev
->name
);
3825 if (vdev
->config
.rth_steering
) {
3826 vxge_debug_init(VXGE_TRACE
,
3827 "%s: RTH steering enabled for TCP_IPV4",
3830 vxge_debug_init(VXGE_TRACE
,
3831 "%s: RTH steering disabled", vdev
->ndev
->name
);
3834 switch (vdev
->config
.tx_steering_type
) {
3836 vxge_debug_init(VXGE_TRACE
,
3837 "%s: Tx steering disabled", vdev
->ndev
->name
);
3839 case TX_PRIORITY_STEERING
:
3840 vxge_debug_init(VXGE_TRACE
,
3841 "%s: Unsupported tx steering option",
3843 vxge_debug_init(VXGE_TRACE
,
3844 "%s: Tx steering disabled", vdev
->ndev
->name
);
3845 vdev
->config
.tx_steering_type
= 0;
3847 case TX_VLAN_STEERING
:
3848 vxge_debug_init(VXGE_TRACE
,
3849 "%s: Unsupported tx steering option",
3851 vxge_debug_init(VXGE_TRACE
,
3852 "%s: Tx steering disabled", vdev
->ndev
->name
);
3853 vdev
->config
.tx_steering_type
= 0;
3855 case TX_MULTIQ_STEERING
:
3856 vxge_debug_init(VXGE_TRACE
,
3857 "%s: Tx multiqueue steering enabled",
3860 case TX_PORT_STEERING
:
3861 vxge_debug_init(VXGE_TRACE
,
3862 "%s: Tx port steering enabled",
3866 vxge_debug_init(VXGE_ERR
,
3867 "%s: Unsupported tx steering type",
3869 vxge_debug_init(VXGE_TRACE
,
3870 "%s: Tx steering disabled", vdev
->ndev
->name
);
3871 vdev
->config
.tx_steering_type
= 0;
3874 if (vdev
->config
.gro_enable
) {
3875 vxge_debug_init(VXGE_ERR
,
3876 "%s: Generic receive offload enabled",
3879 vxge_debug_init(VXGE_TRACE
,
3880 "%s: Generic receive offload disabled",
3883 if (vdev
->config
.addr_learn_en
)
3884 vxge_debug_init(VXGE_TRACE
,
3885 "%s: MAC Address learning enabled", vdev
->ndev
->name
);
3887 vxge_debug_init(VXGE_TRACE
,
3888 "%s: Rx doorbell mode enabled", vdev
->ndev
->name
);
3890 for (i
= 0; i
< VXGE_HW_MAX_VIRTUAL_PATHS
; i
++) {
3891 if (!vxge_bVALn(vpath_mask
, i
, 1))
3893 vxge_debug_ll_config(VXGE_TRACE
,
3894 "%s: MTU size - %d", vdev
->ndev
->name
,
3895 ((struct __vxge_hw_device
*)(vdev
->devh
))->
3896 config
.vp_config
[i
].mtu
);
3897 vxge_debug_init(VXGE_TRACE
,
3898 "%s: VLAN tag stripping %s", vdev
->ndev
->name
,
3899 ((struct __vxge_hw_device
*)(vdev
->devh
))->
3900 config
.vp_config
[i
].rpa_strip_vlan_tag
3901 ? "Enabled" : "Disabled");
3902 vxge_debug_init(VXGE_TRACE
,
3903 "%s: Ring blocks : %d", vdev
->ndev
->name
,
3904 ((struct __vxge_hw_device
*)(vdev
->devh
))->
3905 config
.vp_config
[i
].ring
.ring_blocks
);
3906 vxge_debug_init(VXGE_TRACE
,
3907 "%s: Fifo blocks : %d", vdev
->ndev
->name
,
3908 ((struct __vxge_hw_device
*)(vdev
->devh
))->
3909 config
.vp_config
[i
].fifo
.fifo_blocks
);
3910 vxge_debug_ll_config(VXGE_TRACE
,
3911 "%s: Max frags : %d", vdev
->ndev
->name
,
3912 ((struct __vxge_hw_device
*)(vdev
->devh
))->
3913 config
.vp_config
[i
].fifo
.max_frags
);
3920 * vxge_pm_suspend - vxge power management suspend entry point
3923 static int vxge_pm_suspend(struct pci_dev
*pdev
, pm_message_t state
)
3928 * vxge_pm_resume - vxge power management resume entry point
3931 static int vxge_pm_resume(struct pci_dev
*pdev
)
3939 * vxge_io_error_detected - called when PCI error is detected
3940 * @pdev: Pointer to PCI device
3941 * @state: The current pci connection state
3943 * This function is called after a PCI bus error affecting
3944 * this device has been detected.
3946 static pci_ers_result_t
vxge_io_error_detected(struct pci_dev
*pdev
,
3947 pci_channel_state_t state
)
3949 struct __vxge_hw_device
*hldev
=
3950 (struct __vxge_hw_device
*) pci_get_drvdata(pdev
);
3951 struct net_device
*netdev
= hldev
->ndev
;
3953 netif_device_detach(netdev
);
3955 if (netif_running(netdev
)) {
3956 /* Bring down the card, while avoiding PCI I/O */
3957 do_vxge_close(netdev
, 0);
3960 pci_disable_device(pdev
);
3962 return PCI_ERS_RESULT_NEED_RESET
;
3966 * vxge_io_slot_reset - called after the pci bus has been reset.
3967 * @pdev: Pointer to PCI device
3969 * Restart the card from scratch, as if from a cold-boot.
3970 * At this point, the card has exprienced a hard reset,
3971 * followed by fixups by BIOS, and has its config space
3972 * set up identically to what it was at cold boot.
3974 static pci_ers_result_t
vxge_io_slot_reset(struct pci_dev
*pdev
)
3976 struct __vxge_hw_device
*hldev
=
3977 (struct __vxge_hw_device
*) pci_get_drvdata(pdev
);
3978 struct net_device
*netdev
= hldev
->ndev
;
3980 struct vxgedev
*vdev
= netdev_priv(netdev
);
3982 if (pci_enable_device(pdev
)) {
3983 printk(KERN_ERR
"%s: "
3984 "Cannot re-enable device after reset\n",
3986 return PCI_ERS_RESULT_DISCONNECT
;
3989 pci_set_master(pdev
);
3992 return PCI_ERS_RESULT_RECOVERED
;
3996 * vxge_io_resume - called when traffic can start flowing again.
3997 * @pdev: Pointer to PCI device
3999 * This callback is called when the error recovery driver tells
4000 * us that its OK to resume normal operation.
4002 static void vxge_io_resume(struct pci_dev
*pdev
)
4004 struct __vxge_hw_device
*hldev
=
4005 (struct __vxge_hw_device
*) pci_get_drvdata(pdev
);
4006 struct net_device
*netdev
= hldev
->ndev
;
4008 if (netif_running(netdev
)) {
4009 if (vxge_open(netdev
)) {
4010 printk(KERN_ERR
"%s: "
4011 "Can't bring device back up after reset\n",
4017 netif_device_attach(netdev
);
4022 * @pdev : structure containing the PCI related information of the device.
4023 * @pre: List of PCI devices supported by the driver listed in vxge_id_table.
4025 * This function is called when a new PCI device gets detected and initializes
4028 * returns 0 on success and negative on failure.
4031 static int __devinit
4032 vxge_probe(struct pci_dev
*pdev
, const struct pci_device_id
*pre
)
4034 struct __vxge_hw_device
*hldev
;
4035 enum vxge_hw_status status
;
4039 struct vxgedev
*vdev
;
4040 struct vxge_config ll_config
;
4041 struct vxge_hw_device_config
*device_config
= NULL
;
4042 struct vxge_hw_device_attr attr
;
4043 int i
, j
, no_of_vpath
= 0, max_vpath_supported
= 0;
4045 struct vxge_mac_addrs
*entry
;
4046 static int bus
= -1, device
= -1;
4049 vxge_debug_entryexit(VXGE_TRACE
, "%s:%d", __func__
, __LINE__
);
4052 if (bus
!= pdev
->bus
->number
)
4054 if (device
!= PCI_SLOT(pdev
->devfn
))
4057 bus
= pdev
->bus
->number
;
4058 device
= PCI_SLOT(pdev
->devfn
);
4061 if (driver_config
->config_dev_cnt
&&
4062 (driver_config
->config_dev_cnt
!=
4063 driver_config
->total_dev_cnt
))
4064 vxge_debug_init(VXGE_ERR
,
4065 "%s: Configured %d of %d devices",
4067 driver_config
->config_dev_cnt
,
4068 driver_config
->total_dev_cnt
);
4069 driver_config
->config_dev_cnt
= 0;
4070 driver_config
->total_dev_cnt
= 0;
4071 driver_config
->g_no_cpus
= 0;
4072 driver_config
->vpath_per_dev
= max_config_vpath
;
4075 driver_config
->total_dev_cnt
++;
4076 if (++driver_config
->config_dev_cnt
> max_config_dev
) {
4081 device_config
= kzalloc(sizeof(struct vxge_hw_device_config
),
4083 if (!device_config
) {
4085 vxge_debug_init(VXGE_ERR
,
4086 "device_config : malloc failed %s %d",
4087 __FILE__
, __LINE__
);
4091 memset(&ll_config
, 0, sizeof(struct vxge_config
));
4092 ll_config
.tx_steering_type
= TX_MULTIQ_STEERING
;
4093 ll_config
.intr_type
= MSI_X
;
4094 ll_config
.napi_weight
= NEW_NAPI_WEIGHT
;
4095 ll_config
.rth_steering
= RTH_STEERING
;
4097 /* get the default configuration parameters */
4098 vxge_hw_device_config_default_get(device_config
);
4100 /* initialize configuration parameters */
4101 vxge_device_config_init(device_config
, &ll_config
.intr_type
);
4103 ret
= pci_enable_device(pdev
);
4105 vxge_debug_init(VXGE_ERR
,
4106 "%s : can not enable PCI device", __func__
);
4110 if (!pci_set_dma_mask(pdev
, 0xffffffffffffffffULL
)) {
4111 vxge_debug_ll_config(VXGE_TRACE
,
4112 "%s : using 64bit DMA", __func__
);
4116 if (pci_set_consistent_dma_mask(pdev
,
4117 0xffffffffffffffffULL
)) {
4118 vxge_debug_init(VXGE_ERR
,
4119 "%s : unable to obtain 64bit DMA for "
4120 "consistent allocations", __func__
);
4124 } else if (!pci_set_dma_mask(pdev
, 0xffffffffUL
)) {
4125 vxge_debug_ll_config(VXGE_TRACE
,
4126 "%s : using 32bit DMA", __func__
);
4132 if (pci_request_regions(pdev
, VXGE_DRIVER_NAME
)) {
4133 vxge_debug_init(VXGE_ERR
,
4134 "%s : request regions failed", __func__
);
4139 pci_set_master(pdev
);
4141 attr
.bar0
= pci_ioremap_bar(pdev
, 0);
4143 vxge_debug_init(VXGE_ERR
,
4144 "%s : cannot remap io memory bar0", __func__
);
4148 vxge_debug_ll_config(VXGE_TRACE
,
4149 "pci ioremap bar0: %p:0x%llx",
4151 (unsigned long long)pci_resource_start(pdev
, 0));
4153 attr
.bar1
= pci_ioremap_bar(pdev
, 2);
4155 vxge_debug_init(VXGE_ERR
,
4156 "%s : cannot remap io memory bar2", __func__
);
4160 vxge_debug_ll_config(VXGE_TRACE
,
4161 "pci ioremap bar1: %p:0x%llx",
4163 (unsigned long long)pci_resource_start(pdev
, 2));
4165 status
= vxge_hw_device_hw_info_get(attr
.bar0
,
4166 &ll_config
.device_hw_info
);
4167 if (status
!= VXGE_HW_OK
) {
4168 vxge_debug_init(VXGE_ERR
,
4169 "%s: Reading of hardware info failed."
4170 "Please try upgrading the firmware.", VXGE_DRIVER_NAME
);
4175 if (ll_config
.device_hw_info
.fw_version
.major
!=
4176 VXGE_DRIVER_VERSION_MAJOR
) {
4177 vxge_debug_init(VXGE_ERR
,
4178 "FW Ver.(maj): %d not driver's expected version: %d",
4179 ll_config
.device_hw_info
.fw_version
.major
,
4180 VXGE_DRIVER_VERSION_MAJOR
);
4185 vpath_mask
= ll_config
.device_hw_info
.vpath_mask
;
4186 if (vpath_mask
== 0) {
4187 vxge_debug_ll_config(VXGE_TRACE
,
4188 "%s: No vpaths available in device", VXGE_DRIVER_NAME
);
4193 vxge_debug_ll_config(VXGE_TRACE
,
4194 "%s:%d Vpath mask = %llx", __func__
, __LINE__
,
4195 (unsigned long long)vpath_mask
);
4197 /* Check how many vpaths are available */
4198 for (i
= 0; i
< VXGE_HW_MAX_VIRTUAL_PATHS
; i
++) {
4199 if (!((vpath_mask
) & vxge_mBIT(i
)))
4201 max_vpath_supported
++;
4205 * Configure vpaths and get driver configured number of vpaths
4206 * which is less than or equal to the maximum vpaths per function.
4208 no_of_vpath
= vxge_config_vpaths(device_config
, vpath_mask
, &ll_config
);
4210 vxge_debug_ll_config(VXGE_ERR
,
4211 "%s: No more vpaths to configure", VXGE_DRIVER_NAME
);
4216 /* Setting driver callbacks */
4217 attr
.uld_callbacks
.link_up
= vxge_callback_link_up
;
4218 attr
.uld_callbacks
.link_down
= vxge_callback_link_down
;
4219 attr
.uld_callbacks
.crit_err
= vxge_callback_crit_err
;
4221 status
= vxge_hw_device_initialize(&hldev
, &attr
, device_config
);
4222 if (status
!= VXGE_HW_OK
) {
4223 vxge_debug_init(VXGE_ERR
,
4224 "Failed to initialize device (%d)", status
);
4229 vxge_hw_device_debug_set(hldev
, VXGE_ERR
, VXGE_COMPONENT_LL
);
4231 /* set private device info */
4232 pci_set_drvdata(pdev
, hldev
);
4234 ll_config
.gro_enable
= VXGE_GRO_ALWAYS_AGGREGATE
;
4235 ll_config
.fifo_indicate_max_pkts
= VXGE_FIFO_INDICATE_MAX_PKTS
;
4236 ll_config
.addr_learn_en
= addr_learn_en
;
4237 ll_config
.rth_algorithm
= RTH_ALG_JENKINS
;
4238 ll_config
.rth_hash_type_tcpipv4
= VXGE_HW_RING_HASH_TYPE_TCP_IPV4
;
4239 ll_config
.rth_hash_type_ipv4
= VXGE_HW_RING_HASH_TYPE_NONE
;
4240 ll_config
.rth_hash_type_tcpipv6
= VXGE_HW_RING_HASH_TYPE_NONE
;
4241 ll_config
.rth_hash_type_ipv6
= VXGE_HW_RING_HASH_TYPE_NONE
;
4242 ll_config
.rth_hash_type_tcpipv6ex
= VXGE_HW_RING_HASH_TYPE_NONE
;
4243 ll_config
.rth_hash_type_ipv6ex
= VXGE_HW_RING_HASH_TYPE_NONE
;
4244 ll_config
.rth_bkt_sz
= RTH_BUCKET_SIZE
;
4245 ll_config
.tx_pause_enable
= VXGE_PAUSE_CTRL_ENABLE
;
4246 ll_config
.rx_pause_enable
= VXGE_PAUSE_CTRL_ENABLE
;
4248 if (vxge_device_register(hldev
, &ll_config
, high_dma
, no_of_vpath
,
4254 vxge_hw_device_debug_set(hldev
, VXGE_TRACE
, VXGE_COMPONENT_LL
);
4255 VXGE_COPY_DEBUG_INFO_TO_LL(vdev
, vxge_hw_device_error_level_get(hldev
),
4256 vxge_hw_device_trace_level_get(hldev
));
4258 /* set private HW device info */
4259 hldev
->ndev
= vdev
->ndev
;
4260 vdev
->mtu
= VXGE_HW_DEFAULT_MTU
;
4261 vdev
->bar0
= attr
.bar0
;
4262 vdev
->bar1
= attr
.bar1
;
4263 vdev
->max_vpath_supported
= max_vpath_supported
;
4264 vdev
->no_of_vpath
= no_of_vpath
;
4266 /* Virtual Path count */
4267 for (i
= 0, j
= 0; i
< VXGE_HW_MAX_VIRTUAL_PATHS
; i
++) {
4268 if (!vxge_bVALn(vpath_mask
, i
, 1))
4270 if (j
>= vdev
->no_of_vpath
)
4273 vdev
->vpaths
[j
].is_configured
= 1;
4274 vdev
->vpaths
[j
].device_id
= i
;
4275 vdev
->vpaths
[j
].fifo
.driver_id
= j
;
4276 vdev
->vpaths
[j
].ring
.driver_id
= j
;
4277 vdev
->vpaths
[j
].vdev
= vdev
;
4278 vdev
->vpaths
[j
].max_mac_addr_cnt
= max_mac_vpath
;
4279 memcpy((u8
*)vdev
->vpaths
[j
].macaddr
,
4280 (u8
*)ll_config
.device_hw_info
.mac_addrs
[i
],
4283 /* Initialize the mac address list header */
4284 INIT_LIST_HEAD(&vdev
->vpaths
[j
].mac_addr_list
);
4286 vdev
->vpaths
[j
].mac_addr_cnt
= 0;
4287 vdev
->vpaths
[j
].mcast_addr_cnt
= 0;
4290 vdev
->exec_mode
= VXGE_EXEC_MODE_DISABLE
;
4291 vdev
->max_config_port
= max_config_port
;
4293 vdev
->vlan_tag_strip
= vlan_tag_strip
;
4295 /* map the hashing selector table to the configured vpaths */
4296 for (i
= 0; i
< vdev
->no_of_vpath
; i
++)
4297 vdev
->vpath_selector
[i
] = vpath_selector
[i
];
4299 macaddr
= (u8
*)vdev
->vpaths
[0].macaddr
;
4301 ll_config
.device_hw_info
.serial_number
[VXGE_HW_INFO_LEN
- 1] = '\0';
4302 ll_config
.device_hw_info
.product_desc
[VXGE_HW_INFO_LEN
- 1] = '\0';
4303 ll_config
.device_hw_info
.part_number
[VXGE_HW_INFO_LEN
- 1] = '\0';
4305 vxge_debug_init(VXGE_TRACE
, "%s: SERIAL NUMBER: %s",
4306 vdev
->ndev
->name
, ll_config
.device_hw_info
.serial_number
);
4308 vxge_debug_init(VXGE_TRACE
, "%s: PART NUMBER: %s",
4309 vdev
->ndev
->name
, ll_config
.device_hw_info
.part_number
);
4311 vxge_debug_init(VXGE_TRACE
, "%s: Neterion %s Server Adapter",
4312 vdev
->ndev
->name
, ll_config
.device_hw_info
.product_desc
);
4314 vxge_debug_init(VXGE_TRACE
,
4315 "%s: MAC ADDR: %02X:%02X:%02X:%02X:%02X:%02X",
4316 vdev
->ndev
->name
, macaddr
[0], macaddr
[1], macaddr
[2],
4317 macaddr
[3], macaddr
[4], macaddr
[5]);
4319 vxge_debug_init(VXGE_TRACE
, "%s: Link Width x%d",
4320 vdev
->ndev
->name
, vxge_hw_device_link_width_get(hldev
));
4322 vxge_debug_init(VXGE_TRACE
,
4323 "%s: Firmware version : %s Date : %s", vdev
->ndev
->name
,
4324 ll_config
.device_hw_info
.fw_version
.version
,
4325 ll_config
.device_hw_info
.fw_date
.date
);
4327 vxge_print_parm(vdev
, vpath_mask
);
4329 /* Store the fw version for ethttool option */
4330 strcpy(vdev
->fw_version
, ll_config
.device_hw_info
.fw_version
.version
);
4331 memcpy(vdev
->ndev
->dev_addr
, (u8
*)vdev
->vpaths
[0].macaddr
, ETH_ALEN
);
4332 memcpy(vdev
->ndev
->perm_addr
, vdev
->ndev
->dev_addr
, ETH_ALEN
);
4334 /* Copy the station mac address to the list */
4335 for (i
= 0; i
< vdev
->no_of_vpath
; i
++) {
4336 entry
= (struct vxge_mac_addrs
*)
4337 kzalloc(sizeof(struct vxge_mac_addrs
),
4339 if (NULL
== entry
) {
4340 vxge_debug_init(VXGE_ERR
,
4341 "%s: mac_addr_list : memory allocation failed",
4346 macaddr
= (u8
*)&entry
->macaddr
;
4347 memcpy(macaddr
, vdev
->ndev
->dev_addr
, ETH_ALEN
);
4348 list_add(&entry
->item
, &vdev
->vpaths
[i
].mac_addr_list
);
4349 vdev
->vpaths
[i
].mac_addr_cnt
= 1;
4352 vxge_debug_entryexit(VXGE_TRACE
, "%s: %s:%d Exiting...",
4353 vdev
->ndev
->name
, __func__
, __LINE__
);
4355 vxge_hw_device_debug_set(hldev
, VXGE_ERR
, VXGE_COMPONENT_LL
);
4356 VXGE_COPY_DEBUG_INFO_TO_LL(vdev
, vxge_hw_device_error_level_get(hldev
),
4357 vxge_hw_device_trace_level_get(hldev
));
4362 for (i
= 0; i
< vdev
->no_of_vpath
; i
++)
4363 vxge_free_mac_add_list(&vdev
->vpaths
[i
]);
4365 vxge_device_unregister(hldev
);
4367 vxge_hw_device_terminate(hldev
);
4373 pci_release_regions(pdev
);
4375 pci_disable_device(pdev
);
4377 kfree(device_config
);
4378 driver_config
->config_dev_cnt
--;
4379 pci_set_drvdata(pdev
, NULL
);
4384 * vxge_rem_nic - Free the PCI device
4385 * @pdev: structure containing the PCI related information of the device.
4386 * Description: This function is called by the Pci subsystem to release a
4387 * PCI device and free up all resource held up by the device.
4389 static void __devexit
4390 vxge_remove(struct pci_dev
*pdev
)
4392 struct __vxge_hw_device
*hldev
;
4393 struct vxgedev
*vdev
= NULL
;
4394 struct net_device
*dev
;
4396 #if ((VXGE_DEBUG_INIT & VXGE_DEBUG_MASK) || \
4397 (VXGE_DEBUG_ENTRYEXIT & VXGE_DEBUG_MASK))
4401 hldev
= (struct __vxge_hw_device
*) pci_get_drvdata(pdev
);
4406 vdev
= netdev_priv(dev
);
4408 #if ((VXGE_DEBUG_INIT & VXGE_DEBUG_MASK) || \
4409 (VXGE_DEBUG_ENTRYEXIT & VXGE_DEBUG_MASK))
4410 level_trace
= vdev
->level_trace
;
4412 vxge_debug_entryexit(level_trace
,
4413 "%s:%d", __func__
, __LINE__
);
4415 vxge_debug_init(level_trace
,
4416 "%s : removing PCI device...", __func__
);
4417 vxge_device_unregister(hldev
);
4419 for (i
= 0; i
< vdev
->no_of_vpath
; i
++) {
4420 vxge_free_mac_add_list(&vdev
->vpaths
[i
]);
4421 vdev
->vpaths
[i
].mcast_addr_cnt
= 0;
4422 vdev
->vpaths
[i
].mac_addr_cnt
= 0;
4425 kfree(vdev
->vpaths
);
4427 iounmap(vdev
->bar0
);
4428 iounmap(vdev
->bar1
);
4430 /* we are safe to free it now */
4433 vxge_debug_init(level_trace
,
4434 "%s:%d Device unregistered", __func__
, __LINE__
);
4436 vxge_hw_device_terminate(hldev
);
4438 pci_disable_device(pdev
);
4439 pci_release_regions(pdev
);
4440 pci_set_drvdata(pdev
, NULL
);
4441 vxge_debug_entryexit(level_trace
,
4442 "%s:%d Exiting...", __func__
, __LINE__
);
4445 static struct pci_error_handlers vxge_err_handler
= {
4446 .error_detected
= vxge_io_error_detected
,
4447 .slot_reset
= vxge_io_slot_reset
,
4448 .resume
= vxge_io_resume
,
4451 static struct pci_driver vxge_driver
= {
4452 .name
= VXGE_DRIVER_NAME
,
4453 .id_table
= vxge_id_table
,
4454 .probe
= vxge_probe
,
4455 .remove
= __devexit_p(vxge_remove
),
4457 .suspend
= vxge_pm_suspend
,
4458 .resume
= vxge_pm_resume
,
4460 .err_handler
= &vxge_err_handler
,
4468 snprintf(version
, 32, "%s", DRV_VERSION
);
4470 printk(KERN_CRIT
"%s: Copyright(c) 2002-2009 Neterion Inc\n",
4472 printk(KERN_CRIT
"%s: Driver version: %s\n",
4473 VXGE_DRIVER_NAME
, version
);
4477 driver_config
= kzalloc(sizeof(struct vxge_drv_config
), GFP_KERNEL
);
4481 ret
= pci_register_driver(&vxge_driver
);
4483 if (driver_config
->config_dev_cnt
&&
4484 (driver_config
->config_dev_cnt
!= driver_config
->total_dev_cnt
))
4485 vxge_debug_init(VXGE_ERR
,
4486 "%s: Configured %d of %d devices",
4487 VXGE_DRIVER_NAME
, driver_config
->config_dev_cnt
,
4488 driver_config
->total_dev_cnt
);
4491 kfree(driver_config
);
4499 pci_unregister_driver(&vxge_driver
);
4500 kfree(driver_config
);
4502 module_init(vxge_starter
);
4503 module_exit(vxge_closer
);