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 DEFINE_PCI_DEVICE_TABLE(vxge_id_table
) = {
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
;
92 #define NR_SKB_COMPLETED 128
93 struct sk_buff
*completed
[NR_SKB_COMPLETED
];
100 if (spin_trylock_irqsave(&fifo
->tx_lock
, flags
)) {
101 vxge_hw_vpath_poll_tx(fifo
->handle
, &skb_ptr
,
102 NR_SKB_COMPLETED
, &more
);
103 spin_unlock_irqrestore(&fifo
->tx_lock
, flags
);
106 for (temp
= completed
; temp
!= skb_ptr
; temp
++)
107 dev_kfree_skb_irq(*temp
);
111 static inline void VXGE_COMPLETE_ALL_TX(struct vxgedev
*vdev
)
115 /* Complete all transmits */
116 for (i
= 0; i
< vdev
->no_of_vpath
; i
++)
117 VXGE_COMPLETE_VPATH_TX(&vdev
->vpaths
[i
].fifo
);
120 static inline void VXGE_COMPLETE_ALL_RX(struct vxgedev
*vdev
)
123 struct vxge_ring
*ring
;
125 /* Complete all receives*/
126 for (i
= 0; i
< vdev
->no_of_vpath
; i
++) {
127 ring
= &vdev
->vpaths
[i
].ring
;
128 vxge_hw_vpath_poll_rx(ring
->handle
);
133 * MultiQ manipulation helper functions
135 void vxge_stop_all_tx_queue(struct vxgedev
*vdev
)
138 struct net_device
*dev
= vdev
->ndev
;
140 if (vdev
->config
.tx_steering_type
!= TX_MULTIQ_STEERING
) {
141 for (i
= 0; i
< vdev
->no_of_vpath
; i
++)
142 vdev
->vpaths
[i
].fifo
.queue_state
= VPATH_QUEUE_STOP
;
144 netif_tx_stop_all_queues(dev
);
147 void vxge_stop_tx_queue(struct vxge_fifo
*fifo
)
149 struct net_device
*dev
= fifo
->ndev
;
151 struct netdev_queue
*txq
= NULL
;
152 if (fifo
->tx_steering_type
== TX_MULTIQ_STEERING
)
153 txq
= netdev_get_tx_queue(dev
, fifo
->driver_id
);
155 txq
= netdev_get_tx_queue(dev
, 0);
156 fifo
->queue_state
= VPATH_QUEUE_STOP
;
159 netif_tx_stop_queue(txq
);
162 void vxge_start_all_tx_queue(struct vxgedev
*vdev
)
165 struct net_device
*dev
= vdev
->ndev
;
167 if (vdev
->config
.tx_steering_type
!= TX_MULTIQ_STEERING
) {
168 for (i
= 0; i
< vdev
->no_of_vpath
; i
++)
169 vdev
->vpaths
[i
].fifo
.queue_state
= VPATH_QUEUE_START
;
171 netif_tx_start_all_queues(dev
);
174 static void vxge_wake_all_tx_queue(struct vxgedev
*vdev
)
177 struct net_device
*dev
= vdev
->ndev
;
179 if (vdev
->config
.tx_steering_type
!= TX_MULTIQ_STEERING
) {
180 for (i
= 0; i
< vdev
->no_of_vpath
; i
++)
181 vdev
->vpaths
[i
].fifo
.queue_state
= VPATH_QUEUE_START
;
183 netif_tx_wake_all_queues(dev
);
186 void vxge_wake_tx_queue(struct vxge_fifo
*fifo
, struct sk_buff
*skb
)
188 struct net_device
*dev
= fifo
->ndev
;
190 int vpath_no
= fifo
->driver_id
;
191 struct netdev_queue
*txq
= NULL
;
192 if (fifo
->tx_steering_type
== TX_MULTIQ_STEERING
) {
193 txq
= netdev_get_tx_queue(dev
, vpath_no
);
194 if (netif_tx_queue_stopped(txq
))
195 netif_tx_wake_queue(txq
);
197 txq
= netdev_get_tx_queue(dev
, 0);
198 if (fifo
->queue_state
== VPATH_QUEUE_STOP
)
199 if (netif_tx_queue_stopped(txq
)) {
200 fifo
->queue_state
= VPATH_QUEUE_START
;
201 netif_tx_wake_queue(txq
);
207 * vxge_callback_link_up
209 * This function is called during interrupt context to notify link up state
213 vxge_callback_link_up(struct __vxge_hw_device
*hldev
)
215 struct net_device
*dev
= hldev
->ndev
;
216 struct vxgedev
*vdev
= (struct vxgedev
*)netdev_priv(dev
);
218 vxge_debug_entryexit(VXGE_TRACE
, "%s: %s:%d",
219 vdev
->ndev
->name
, __func__
, __LINE__
);
220 printk(KERN_NOTICE
"%s: Link Up\n", vdev
->ndev
->name
);
221 vdev
->stats
.link_up
++;
223 netif_carrier_on(vdev
->ndev
);
224 vxge_wake_all_tx_queue(vdev
);
226 vxge_debug_entryexit(VXGE_TRACE
,
227 "%s: %s:%d Exiting...", vdev
->ndev
->name
, __func__
, __LINE__
);
231 * vxge_callback_link_down
233 * This function is called during interrupt context to notify link down state
237 vxge_callback_link_down(struct __vxge_hw_device
*hldev
)
239 struct net_device
*dev
= hldev
->ndev
;
240 struct vxgedev
*vdev
= (struct vxgedev
*)netdev_priv(dev
);
242 vxge_debug_entryexit(VXGE_TRACE
,
243 "%s: %s:%d", vdev
->ndev
->name
, __func__
, __LINE__
);
244 printk(KERN_NOTICE
"%s: Link Down\n", vdev
->ndev
->name
);
246 vdev
->stats
.link_down
++;
247 netif_carrier_off(vdev
->ndev
);
248 vxge_stop_all_tx_queue(vdev
);
250 vxge_debug_entryexit(VXGE_TRACE
,
251 "%s: %s:%d Exiting...", vdev
->ndev
->name
, __func__
, __LINE__
);
259 static struct sk_buff
*
260 vxge_rx_alloc(void *dtrh
, struct vxge_ring
*ring
, const int skb_size
)
262 struct net_device
*dev
;
264 struct vxge_rx_priv
*rx_priv
;
267 vxge_debug_entryexit(VXGE_TRACE
, "%s: %s:%d",
268 ring
->ndev
->name
, __func__
, __LINE__
);
270 rx_priv
= vxge_hw_ring_rxd_private_get(dtrh
);
272 /* try to allocate skb first. this one may fail */
273 skb
= netdev_alloc_skb(dev
, skb_size
+
274 VXGE_HW_HEADER_ETHERNET_II_802_3_ALIGN
);
276 vxge_debug_mem(VXGE_ERR
,
277 "%s: out of memory to allocate SKB", dev
->name
);
278 ring
->stats
.skb_alloc_fail
++;
282 vxge_debug_mem(VXGE_TRACE
,
283 "%s: %s:%d Skb : 0x%p", ring
->ndev
->name
,
284 __func__
, __LINE__
, skb
);
286 skb_reserve(skb
, VXGE_HW_HEADER_ETHERNET_II_802_3_ALIGN
);
289 rx_priv
->skb_data
= NULL
;
290 rx_priv
->data_size
= skb_size
;
291 vxge_debug_entryexit(VXGE_TRACE
,
292 "%s: %s:%d Exiting...", ring
->ndev
->name
, __func__
, __LINE__
);
300 static int vxge_rx_map(void *dtrh
, struct vxge_ring
*ring
)
302 struct vxge_rx_priv
*rx_priv
;
305 vxge_debug_entryexit(VXGE_TRACE
, "%s: %s:%d",
306 ring
->ndev
->name
, __func__
, __LINE__
);
307 rx_priv
= vxge_hw_ring_rxd_private_get(dtrh
);
309 rx_priv
->skb_data
= rx_priv
->skb
->data
;
310 dma_addr
= pci_map_single(ring
->pdev
, rx_priv
->skb_data
,
311 rx_priv
->data_size
, PCI_DMA_FROMDEVICE
);
313 if (unlikely(pci_dma_mapping_error(ring
->pdev
, dma_addr
))) {
314 ring
->stats
.pci_map_fail
++;
317 vxge_debug_mem(VXGE_TRACE
,
318 "%s: %s:%d 1 buffer mode dma_addr = 0x%llx",
319 ring
->ndev
->name
, __func__
, __LINE__
,
320 (unsigned long long)dma_addr
);
321 vxge_hw_ring_rxd_1b_set(dtrh
, dma_addr
, rx_priv
->data_size
);
323 rx_priv
->data_dma
= dma_addr
;
324 vxge_debug_entryexit(VXGE_TRACE
,
325 "%s: %s:%d Exiting...", ring
->ndev
->name
, __func__
, __LINE__
);
331 * vxge_rx_initial_replenish
332 * Allocation of RxD as an initial replenish procedure.
334 static enum vxge_hw_status
335 vxge_rx_initial_replenish(void *dtrh
, void *userdata
)
337 struct vxge_ring
*ring
= (struct vxge_ring
*)userdata
;
338 struct vxge_rx_priv
*rx_priv
;
340 vxge_debug_entryexit(VXGE_TRACE
, "%s: %s:%d",
341 ring
->ndev
->name
, __func__
, __LINE__
);
342 if (vxge_rx_alloc(dtrh
, ring
,
343 VXGE_LL_MAX_FRAME_SIZE(ring
->ndev
)) == NULL
)
346 if (vxge_rx_map(dtrh
, ring
)) {
347 rx_priv
= vxge_hw_ring_rxd_private_get(dtrh
);
348 dev_kfree_skb(rx_priv
->skb
);
352 vxge_debug_entryexit(VXGE_TRACE
,
353 "%s: %s:%d Exiting...", ring
->ndev
->name
, __func__
, __LINE__
);
359 vxge_rx_complete(struct vxge_ring
*ring
, struct sk_buff
*skb
, u16 vlan
,
360 int pkt_length
, struct vxge_hw_ring_rxd_info
*ext_info
)
363 vxge_debug_entryexit(VXGE_TRACE
, "%s: %s:%d",
364 ring
->ndev
->name
, __func__
, __LINE__
);
365 skb_record_rx_queue(skb
, ring
->driver_id
);
366 skb
->protocol
= eth_type_trans(skb
, ring
->ndev
);
368 ring
->stats
.rx_frms
++;
369 ring
->stats
.rx_bytes
+= pkt_length
;
371 if (skb
->pkt_type
== PACKET_MULTICAST
)
372 ring
->stats
.rx_mcast
++;
374 vxge_debug_rx(VXGE_TRACE
,
375 "%s: %s:%d skb protocol = %d",
376 ring
->ndev
->name
, __func__
, __LINE__
, skb
->protocol
);
378 if (ring
->gro_enable
) {
379 if (ring
->vlgrp
&& ext_info
->vlan
&&
380 (ring
->vlan_tag_strip
==
381 VXGE_HW_VPATH_RPA_STRIP_VLAN_TAG_ENABLE
))
382 vlan_gro_receive(ring
->napi_p
, ring
->vlgrp
,
383 ext_info
->vlan
, skb
);
385 napi_gro_receive(ring
->napi_p
, skb
);
387 if (ring
->vlgrp
&& vlan
&&
388 (ring
->vlan_tag_strip
==
389 VXGE_HW_VPATH_RPA_STRIP_VLAN_TAG_ENABLE
))
390 vlan_hwaccel_receive_skb(skb
, ring
->vlgrp
, vlan
);
392 netif_receive_skb(skb
);
394 vxge_debug_entryexit(VXGE_TRACE
,
395 "%s: %s:%d Exiting...", ring
->ndev
->name
, __func__
, __LINE__
);
398 static inline void vxge_re_pre_post(void *dtr
, struct vxge_ring
*ring
,
399 struct vxge_rx_priv
*rx_priv
)
401 pci_dma_sync_single_for_device(ring
->pdev
,
402 rx_priv
->data_dma
, rx_priv
->data_size
, PCI_DMA_FROMDEVICE
);
404 vxge_hw_ring_rxd_1b_set(dtr
, rx_priv
->data_dma
, rx_priv
->data_size
);
405 vxge_hw_ring_rxd_pre_post(ring
->handle
, dtr
);
408 static inline void vxge_post(int *dtr_cnt
, void **first_dtr
,
409 void *post_dtr
, struct __vxge_hw_ring
*ringh
)
411 int dtr_count
= *dtr_cnt
;
412 if ((*dtr_cnt
% VXGE_HW_RXSYNC_FREQ_CNT
) == 0) {
414 vxge_hw_ring_rxd_post_post_wmb(ringh
, *first_dtr
);
415 *first_dtr
= post_dtr
;
417 vxge_hw_ring_rxd_post_post(ringh
, post_dtr
);
419 *dtr_cnt
= dtr_count
;
425 * If the interrupt is because of a received frame or if the receive ring
426 * contains fresh as yet un-processed frames, this function is called.
429 vxge_rx_1b_compl(struct __vxge_hw_ring
*ringh
, void *dtr
,
430 u8 t_code
, void *userdata
)
432 struct vxge_ring
*ring
= (struct vxge_ring
*)userdata
;
433 struct net_device
*dev
= ring
->ndev
;
434 unsigned int dma_sizes
;
435 void *first_dtr
= NULL
;
441 struct vxge_rx_priv
*rx_priv
;
442 struct vxge_hw_ring_rxd_info ext_info
;
443 vxge_debug_entryexit(VXGE_TRACE
, "%s: %s:%d",
444 ring
->ndev
->name
, __func__
, __LINE__
);
445 ring
->pkts_processed
= 0;
447 vxge_hw_ring_replenish(ringh
);
450 prefetch((char *)dtr
+ L1_CACHE_BYTES
);
451 rx_priv
= vxge_hw_ring_rxd_private_get(dtr
);
453 data_size
= rx_priv
->data_size
;
454 data_dma
= rx_priv
->data_dma
;
455 prefetch(rx_priv
->skb_data
);
457 vxge_debug_rx(VXGE_TRACE
,
458 "%s: %s:%d skb = 0x%p",
459 ring
->ndev
->name
, __func__
, __LINE__
, skb
);
461 vxge_hw_ring_rxd_1b_get(ringh
, dtr
, &dma_sizes
);
462 pkt_length
= dma_sizes
;
464 pkt_length
-= ETH_FCS_LEN
;
466 vxge_debug_rx(VXGE_TRACE
,
467 "%s: %s:%d Packet Length = %d",
468 ring
->ndev
->name
, __func__
, __LINE__
, pkt_length
);
470 vxge_hw_ring_rxd_1b_info_get(ringh
, dtr
, &ext_info
);
472 /* check skb validity */
475 prefetch((char *)skb
+ L1_CACHE_BYTES
);
476 if (unlikely(t_code
)) {
478 if (vxge_hw_ring_handle_tcode(ringh
, dtr
, t_code
) !=
481 ring
->stats
.rx_errors
++;
482 vxge_debug_rx(VXGE_TRACE
,
483 "%s: %s :%d Rx T_code is %d",
484 ring
->ndev
->name
, __func__
,
487 /* If the t_code is not supported and if the
488 * t_code is other than 0x5 (unparseable packet
489 * such as unknown UPV6 header), Drop it !!!
491 vxge_re_pre_post(dtr
, ring
, rx_priv
);
493 vxge_post(&dtr_cnt
, &first_dtr
, dtr
, ringh
);
494 ring
->stats
.rx_dropped
++;
499 if (pkt_length
> VXGE_LL_RX_COPY_THRESHOLD
) {
501 if (vxge_rx_alloc(dtr
, ring
, data_size
) != NULL
) {
503 if (!vxge_rx_map(dtr
, ring
)) {
504 skb_put(skb
, pkt_length
);
506 pci_unmap_single(ring
->pdev
, data_dma
,
507 data_size
, PCI_DMA_FROMDEVICE
);
509 vxge_hw_ring_rxd_pre_post(ringh
, dtr
);
510 vxge_post(&dtr_cnt
, &first_dtr
, dtr
,
513 dev_kfree_skb(rx_priv
->skb
);
515 rx_priv
->data_size
= data_size
;
516 vxge_re_pre_post(dtr
, ring
, rx_priv
);
518 vxge_post(&dtr_cnt
, &first_dtr
, dtr
,
520 ring
->stats
.rx_dropped
++;
524 vxge_re_pre_post(dtr
, ring
, rx_priv
);
526 vxge_post(&dtr_cnt
, &first_dtr
, dtr
, ringh
);
527 ring
->stats
.rx_dropped
++;
531 struct sk_buff
*skb_up
;
533 skb_up
= netdev_alloc_skb(dev
, pkt_length
+
534 VXGE_HW_HEADER_ETHERNET_II_802_3_ALIGN
);
535 if (skb_up
!= NULL
) {
537 VXGE_HW_HEADER_ETHERNET_II_802_3_ALIGN
);
539 pci_dma_sync_single_for_cpu(ring
->pdev
,
543 vxge_debug_mem(VXGE_TRACE
,
544 "%s: %s:%d skb_up = %p",
545 ring
->ndev
->name
, __func__
,
547 memcpy(skb_up
->data
, skb
->data
, pkt_length
);
549 vxge_re_pre_post(dtr
, ring
, rx_priv
);
551 vxge_post(&dtr_cnt
, &first_dtr
, dtr
,
553 /* will netif_rx small SKB instead */
555 skb_put(skb
, pkt_length
);
557 vxge_re_pre_post(dtr
, ring
, rx_priv
);
559 vxge_post(&dtr_cnt
, &first_dtr
, dtr
, ringh
);
560 vxge_debug_rx(VXGE_ERR
,
561 "%s: vxge_rx_1b_compl: out of "
562 "memory", dev
->name
);
563 ring
->stats
.skb_alloc_fail
++;
568 if ((ext_info
.proto
& VXGE_HW_FRAME_PROTO_TCP_OR_UDP
) &&
569 !(ext_info
.proto
& VXGE_HW_FRAME_PROTO_IP_FRAG
) &&
570 ring
->rx_csum
&& /* Offload Rx side CSUM */
571 ext_info
.l3_cksum
== VXGE_HW_L3_CKSUM_OK
&&
572 ext_info
.l4_cksum
== VXGE_HW_L4_CKSUM_OK
)
573 skb
->ip_summed
= CHECKSUM_UNNECESSARY
;
575 skb
->ip_summed
= CHECKSUM_NONE
;
577 vxge_rx_complete(ring
, skb
, ext_info
.vlan
,
578 pkt_length
, &ext_info
);
581 ring
->pkts_processed
++;
585 } while (vxge_hw_ring_rxd_next_completed(ringh
, &dtr
,
586 &t_code
) == VXGE_HW_OK
);
589 vxge_hw_ring_rxd_post_post_wmb(ringh
, first_dtr
);
591 vxge_debug_entryexit(VXGE_TRACE
,
600 * If an interrupt was raised to indicate DMA complete of the Tx packet,
601 * this function is called. It identifies the last TxD whose buffer was
602 * freed and frees all skbs whose data have already DMA'ed into the NICs
606 vxge_xmit_compl(struct __vxge_hw_fifo
*fifo_hw
, void *dtr
,
607 enum vxge_hw_fifo_tcode t_code
, void *userdata
,
608 struct sk_buff
***skb_ptr
, int nr_skb
, int *more
)
610 struct vxge_fifo
*fifo
= (struct vxge_fifo
*)userdata
;
611 struct sk_buff
*skb
, **done_skb
= *skb_ptr
;
614 vxge_debug_entryexit(VXGE_TRACE
,
615 "%s:%d Entered....", __func__
, __LINE__
);
621 struct vxge_tx_priv
*txd_priv
=
622 vxge_hw_fifo_txdl_private_get(dtr
);
625 frg_cnt
= skb_shinfo(skb
)->nr_frags
;
626 frag
= &skb_shinfo(skb
)->frags
[0];
628 vxge_debug_tx(VXGE_TRACE
,
629 "%s: %s:%d fifo_hw = %p dtr = %p "
630 "tcode = 0x%x", fifo
->ndev
->name
, __func__
,
631 __LINE__
, fifo_hw
, dtr
, t_code
);
632 /* check skb validity */
634 vxge_debug_tx(VXGE_TRACE
,
635 "%s: %s:%d skb = %p itxd_priv = %p frg_cnt = %d",
636 fifo
->ndev
->name
, __func__
, __LINE__
,
637 skb
, txd_priv
, frg_cnt
);
638 if (unlikely(t_code
)) {
639 fifo
->stats
.tx_errors
++;
640 vxge_debug_tx(VXGE_ERR
,
641 "%s: tx: dtr %p completed due to "
642 "error t_code %01x", fifo
->ndev
->name
,
644 vxge_hw_fifo_handle_tcode(fifo_hw
, dtr
, t_code
);
647 /* for unfragmented skb */
648 pci_unmap_single(fifo
->pdev
, txd_priv
->dma_buffers
[i
++],
649 skb_headlen(skb
), PCI_DMA_TODEVICE
);
651 for (j
= 0; j
< frg_cnt
; j
++) {
652 pci_unmap_page(fifo
->pdev
,
653 txd_priv
->dma_buffers
[i
++],
654 frag
->size
, PCI_DMA_TODEVICE
);
658 vxge_hw_fifo_txdl_free(fifo_hw
, dtr
);
660 /* Updating the statistics block */
661 fifo
->stats
.tx_frms
++;
662 fifo
->stats
.tx_bytes
+= skb
->len
;
672 if (pkt_cnt
> fifo
->indicate_max_pkts
)
675 } while (vxge_hw_fifo_txdl_next_completed(fifo_hw
,
676 &dtr
, &t_code
) == VXGE_HW_OK
);
679 vxge_wake_tx_queue(fifo
, skb
);
681 vxge_debug_entryexit(VXGE_TRACE
,
682 "%s: %s:%d Exiting...",
683 fifo
->ndev
->name
, __func__
, __LINE__
);
687 /* select a vpath to transmit the packet */
688 static u32
vxge_get_vpath_no(struct vxgedev
*vdev
, struct sk_buff
*skb
,
691 u16 queue_len
, counter
= 0;
692 if (skb
->protocol
== htons(ETH_P_IP
)) {
698 if ((ip
->frag_off
& htons(IP_OFFSET
|IP_MF
)) == 0) {
699 th
= (struct tcphdr
*)(((unsigned char *)ip
) +
702 queue_len
= vdev
->no_of_vpath
;
703 counter
= (ntohs(th
->source
) +
705 vdev
->vpath_selector
[queue_len
- 1];
706 if (counter
>= queue_len
)
707 counter
= queue_len
- 1;
709 if (ip
->protocol
== IPPROTO_UDP
) {
719 static enum vxge_hw_status
vxge_search_mac_addr_in_list(
720 struct vxge_vpath
*vpath
, u64 del_mac
)
722 struct list_head
*entry
, *next
;
723 list_for_each_safe(entry
, next
, &vpath
->mac_addr_list
) {
724 if (((struct vxge_mac_addrs
*)entry
)->macaddr
== del_mac
)
730 static int vxge_learn_mac(struct vxgedev
*vdev
, u8
*mac_header
)
732 struct macInfo mac_info
;
733 u8
*mac_address
= NULL
;
734 u64 mac_addr
= 0, vpath_vector
= 0;
736 enum vxge_hw_status status
= VXGE_HW_OK
;
737 struct vxge_vpath
*vpath
= NULL
;
738 struct __vxge_hw_device
*hldev
;
740 hldev
= (struct __vxge_hw_device
*) pci_get_drvdata(vdev
->pdev
);
742 mac_address
= (u8
*)&mac_addr
;
743 memcpy(mac_address
, mac_header
, ETH_ALEN
);
745 /* Is this mac address already in the list? */
746 for (vpath_idx
= 0; vpath_idx
< vdev
->no_of_vpath
; vpath_idx
++) {
747 vpath
= &vdev
->vpaths
[vpath_idx
];
748 if (vxge_search_mac_addr_in_list(vpath
, mac_addr
))
752 memset(&mac_info
, 0, sizeof(struct macInfo
));
753 memcpy(mac_info
.macaddr
, mac_header
, ETH_ALEN
);
755 /* Any vpath has room to add mac address to its da table? */
756 for (vpath_idx
= 0; vpath_idx
< vdev
->no_of_vpath
; vpath_idx
++) {
757 vpath
= &vdev
->vpaths
[vpath_idx
];
758 if (vpath
->mac_addr_cnt
< vpath
->max_mac_addr_cnt
) {
759 /* Add this mac address to this vpath */
760 mac_info
.vpath_no
= vpath_idx
;
761 mac_info
.state
= VXGE_LL_MAC_ADDR_IN_DA_TABLE
;
762 status
= vxge_add_mac_addr(vdev
, &mac_info
);
763 if (status
!= VXGE_HW_OK
)
769 mac_info
.state
= VXGE_LL_MAC_ADDR_IN_LIST
;
771 mac_info
.vpath_no
= vpath_idx
;
772 /* Is the first vpath already selected as catch-basin ? */
773 vpath
= &vdev
->vpaths
[vpath_idx
];
774 if (vpath
->mac_addr_cnt
> vpath
->max_mac_addr_cnt
) {
775 /* Add this mac address to this vpath */
776 if (FALSE
== vxge_mac_list_add(vpath
, &mac_info
))
781 /* Select first vpath as catch-basin */
782 vpath_vector
= vxge_mBIT(vpath
->device_id
);
783 status
= vxge_hw_mgmt_reg_write(vpath
->vdev
->devh
,
784 vxge_hw_mgmt_reg_type_mrpcim
,
787 struct vxge_hw_mrpcim_reg
,
790 if (status
!= VXGE_HW_OK
) {
791 vxge_debug_tx(VXGE_ERR
,
792 "%s: Unable to set the vpath-%d in catch-basin mode",
793 VXGE_DRIVER_NAME
, vpath
->device_id
);
797 if (FALSE
== vxge_mac_list_add(vpath
, &mac_info
))
805 * @skb : the socket buffer containing the Tx data.
806 * @dev : device pointer.
808 * This function is the Tx entry point of the driver. Neterion NIC supports
809 * certain protocol assist features on Tx side, namely CSO, S/G, LSO.
810 * NOTE: when device cant queue the pkt, just the trans_start variable will
814 vxge_xmit(struct sk_buff
*skb
, struct net_device
*dev
)
816 struct vxge_fifo
*fifo
= NULL
;
819 struct vxgedev
*vdev
= NULL
;
820 enum vxge_hw_status status
;
821 int frg_cnt
, first_frg_len
;
823 int i
= 0, j
= 0, avail
;
825 struct vxge_tx_priv
*txdl_priv
= NULL
;
826 struct __vxge_hw_fifo
*fifo_hw
;
828 unsigned long flags
= 0;
830 int do_spin_tx_lock
= 1;
832 vxge_debug_entryexit(VXGE_TRACE
, "%s: %s:%d",
833 dev
->name
, __func__
, __LINE__
);
835 /* A buffer with no data will be dropped */
836 if (unlikely(skb
->len
<= 0)) {
837 vxge_debug_tx(VXGE_ERR
,
838 "%s: Buffer has no data..", dev
->name
);
843 vdev
= (struct vxgedev
*)netdev_priv(dev
);
845 if (unlikely(!is_vxge_card_up(vdev
))) {
846 vxge_debug_tx(VXGE_ERR
,
847 "%s: vdev not initialized", dev
->name
);
852 if (vdev
->config
.addr_learn_en
) {
853 vpath_no
= vxge_learn_mac(vdev
, skb
->data
+ ETH_ALEN
);
854 if (vpath_no
== -EPERM
) {
855 vxge_debug_tx(VXGE_ERR
,
856 "%s: Failed to store the mac address",
863 if (vdev
->config
.tx_steering_type
== TX_MULTIQ_STEERING
)
864 vpath_no
= skb_get_queue_mapping(skb
);
865 else if (vdev
->config
.tx_steering_type
== TX_PORT_STEERING
)
866 vpath_no
= vxge_get_vpath_no(vdev
, skb
, &do_spin_tx_lock
);
868 vxge_debug_tx(VXGE_TRACE
, "%s: vpath_no= %d", dev
->name
, vpath_no
);
870 if (vpath_no
>= vdev
->no_of_vpath
)
873 fifo
= &vdev
->vpaths
[vpath_no
].fifo
;
874 fifo_hw
= fifo
->handle
;
877 spin_lock_irqsave(&fifo
->tx_lock
, flags
);
879 if (unlikely(!spin_trylock_irqsave(&fifo
->tx_lock
, flags
)))
880 return NETDEV_TX_LOCKED
;
883 if (vdev
->config
.tx_steering_type
== TX_MULTIQ_STEERING
) {
884 if (netif_subqueue_stopped(dev
, skb
)) {
885 spin_unlock_irqrestore(&fifo
->tx_lock
, flags
);
886 return NETDEV_TX_BUSY
;
888 } else if (unlikely(fifo
->queue_state
== VPATH_QUEUE_STOP
)) {
889 if (netif_queue_stopped(dev
)) {
890 spin_unlock_irqrestore(&fifo
->tx_lock
, flags
);
891 return NETDEV_TX_BUSY
;
894 avail
= vxge_hw_fifo_free_txdl_count_get(fifo_hw
);
896 vxge_debug_tx(VXGE_ERR
,
897 "%s: No free TXDs available", dev
->name
);
898 fifo
->stats
.txd_not_free
++;
899 vxge_stop_tx_queue(fifo
);
903 /* Last TXD? Stop tx queue to avoid dropping packets. TX
904 * completion will resume the queue.
907 vxge_stop_tx_queue(fifo
);
909 status
= vxge_hw_fifo_txdl_reserve(fifo_hw
, &dtr
, &dtr_priv
);
910 if (unlikely(status
!= VXGE_HW_OK
)) {
911 vxge_debug_tx(VXGE_ERR
,
912 "%s: Out of descriptors .", dev
->name
);
913 fifo
->stats
.txd_out_of_desc
++;
914 vxge_stop_tx_queue(fifo
);
918 vxge_debug_tx(VXGE_TRACE
,
919 "%s: %s:%d fifo_hw = %p dtr = %p dtr_priv = %p",
920 dev
->name
, __func__
, __LINE__
,
921 fifo_hw
, dtr
, dtr_priv
);
923 if (vdev
->vlgrp
&& vlan_tx_tag_present(skb
)) {
924 u16 vlan_tag
= vlan_tx_tag_get(skb
);
925 vxge_hw_fifo_txdl_vlan_set(dtr
, vlan_tag
);
928 first_frg_len
= skb_headlen(skb
);
930 dma_pointer
= pci_map_single(fifo
->pdev
, skb
->data
, first_frg_len
,
933 if (unlikely(pci_dma_mapping_error(fifo
->pdev
, dma_pointer
))) {
934 vxge_hw_fifo_txdl_free(fifo_hw
, dtr
);
935 vxge_stop_tx_queue(fifo
);
936 fifo
->stats
.pci_map_fail
++;
940 txdl_priv
= vxge_hw_fifo_txdl_private_get(dtr
);
941 txdl_priv
->skb
= skb
;
942 txdl_priv
->dma_buffers
[j
] = dma_pointer
;
944 frg_cnt
= skb_shinfo(skb
)->nr_frags
;
945 vxge_debug_tx(VXGE_TRACE
,
946 "%s: %s:%d skb = %p txdl_priv = %p "
947 "frag_cnt = %d dma_pointer = 0x%llx", dev
->name
,
948 __func__
, __LINE__
, skb
, txdl_priv
,
949 frg_cnt
, (unsigned long long)dma_pointer
);
951 vxge_hw_fifo_txdl_buffer_set(fifo_hw
, dtr
, j
++, dma_pointer
,
954 frag
= &skb_shinfo(skb
)->frags
[0];
955 for (i
= 0; i
< frg_cnt
; i
++) {
956 /* ignore 0 length fragment */
961 (u64
)pci_map_page(fifo
->pdev
, frag
->page
,
962 frag
->page_offset
, frag
->size
,
965 if (unlikely(pci_dma_mapping_error(fifo
->pdev
, dma_pointer
)))
967 vxge_debug_tx(VXGE_TRACE
,
968 "%s: %s:%d frag = %d dma_pointer = 0x%llx",
969 dev
->name
, __func__
, __LINE__
, i
,
970 (unsigned long long)dma_pointer
);
972 txdl_priv
->dma_buffers
[j
] = dma_pointer
;
973 vxge_hw_fifo_txdl_buffer_set(fifo_hw
, dtr
, j
++, dma_pointer
,
978 offload_type
= vxge_offload_type(skb
);
980 if (offload_type
& (SKB_GSO_TCPV4
| SKB_GSO_TCPV6
)) {
982 int mss
= vxge_tcp_mss(skb
);
984 vxge_debug_tx(VXGE_TRACE
,
985 "%s: %s:%d mss = %d",
986 dev
->name
, __func__
, __LINE__
, mss
);
987 vxge_hw_fifo_txdl_mss_set(dtr
, mss
);
989 vxge_assert(skb
->len
<=
990 dev
->mtu
+ VXGE_HW_MAC_HEADER_MAX_SIZE
);
996 if (skb
->ip_summed
== CHECKSUM_PARTIAL
)
997 vxge_hw_fifo_txdl_cksum_set_bits(dtr
,
998 VXGE_HW_FIFO_TXD_TX_CKO_IPV4_EN
|
999 VXGE_HW_FIFO_TXD_TX_CKO_TCP_EN
|
1000 VXGE_HW_FIFO_TXD_TX_CKO_UDP_EN
);
1002 vxge_hw_fifo_txdl_post(fifo_hw
, dtr
);
1004 dev
->trans_start
= jiffies
; /* NETIF_F_LLTX driver :( */
1006 spin_unlock_irqrestore(&fifo
->tx_lock
, flags
);
1008 VXGE_COMPLETE_VPATH_TX(fifo
);
1009 vxge_debug_entryexit(VXGE_TRACE
, "%s: %s:%d Exiting...",
1010 dev
->name
, __func__
, __LINE__
);
1011 return NETDEV_TX_OK
;
1014 vxge_debug_tx(VXGE_TRACE
, "%s: pci_map_page failed", dev
->name
);
1018 frag
= &skb_shinfo(skb
)->frags
[0];
1020 pci_unmap_single(fifo
->pdev
, txdl_priv
->dma_buffers
[j
++],
1021 skb_headlen(skb
), PCI_DMA_TODEVICE
);
1023 for (; j
< i
; j
++) {
1024 pci_unmap_page(fifo
->pdev
, txdl_priv
->dma_buffers
[j
],
1025 frag
->size
, PCI_DMA_TODEVICE
);
1029 vxge_hw_fifo_txdl_free(fifo_hw
, dtr
);
1032 spin_unlock_irqrestore(&fifo
->tx_lock
, flags
);
1033 VXGE_COMPLETE_VPATH_TX(fifo
);
1035 return NETDEV_TX_OK
;
1041 * Function will be called by hw function to abort all outstanding receive
1045 vxge_rx_term(void *dtrh
, enum vxge_hw_rxd_state state
, void *userdata
)
1047 struct vxge_ring
*ring
= (struct vxge_ring
*)userdata
;
1048 struct vxge_rx_priv
*rx_priv
=
1049 vxge_hw_ring_rxd_private_get(dtrh
);
1051 vxge_debug_entryexit(VXGE_TRACE
, "%s: %s:%d",
1052 ring
->ndev
->name
, __func__
, __LINE__
);
1053 if (state
!= VXGE_HW_RXD_STATE_POSTED
)
1056 pci_unmap_single(ring
->pdev
, rx_priv
->data_dma
,
1057 rx_priv
->data_size
, PCI_DMA_FROMDEVICE
);
1059 dev_kfree_skb(rx_priv
->skb
);
1060 rx_priv
->skb_data
= NULL
;
1062 vxge_debug_entryexit(VXGE_TRACE
,
1063 "%s: %s:%d Exiting...",
1064 ring
->ndev
->name
, __func__
, __LINE__
);
1070 * Function will be called to abort all outstanding tx descriptors
1073 vxge_tx_term(void *dtrh
, enum vxge_hw_txdl_state state
, void *userdata
)
1075 struct vxge_fifo
*fifo
= (struct vxge_fifo
*)userdata
;
1077 int i
= 0, j
, frg_cnt
;
1078 struct vxge_tx_priv
*txd_priv
= vxge_hw_fifo_txdl_private_get(dtrh
);
1079 struct sk_buff
*skb
= txd_priv
->skb
;
1081 vxge_debug_entryexit(VXGE_TRACE
, "%s:%d", __func__
, __LINE__
);
1083 if (state
!= VXGE_HW_TXDL_STATE_POSTED
)
1086 /* check skb validity */
1088 frg_cnt
= skb_shinfo(skb
)->nr_frags
;
1089 frag
= &skb_shinfo(skb
)->frags
[0];
1091 /* for unfragmented skb */
1092 pci_unmap_single(fifo
->pdev
, txd_priv
->dma_buffers
[i
++],
1093 skb_headlen(skb
), PCI_DMA_TODEVICE
);
1095 for (j
= 0; j
< frg_cnt
; j
++) {
1096 pci_unmap_page(fifo
->pdev
, txd_priv
->dma_buffers
[i
++],
1097 frag
->size
, PCI_DMA_TODEVICE
);
1103 vxge_debug_entryexit(VXGE_TRACE
,
1104 "%s:%d Exiting...", __func__
, __LINE__
);
1108 * vxge_set_multicast
1109 * @dev: pointer to the device structure
1111 * Entry point for multicast address enable/disable
1112 * This function is a driver entry point which gets called by the kernel
1113 * whenever multicast addresses must be enabled/disabled. This also gets
1114 * called to set/reset promiscuous mode. Depending on the deivce flag, we
1115 * determine, if multicast address must be enabled or if promiscuous mode
1116 * is to be disabled etc.
1118 static void vxge_set_multicast(struct net_device
*dev
)
1120 struct dev_mc_list
*mclist
;
1121 struct vxgedev
*vdev
;
1122 int i
, mcast_cnt
= 0;
1123 struct __vxge_hw_device
*hldev
;
1124 enum vxge_hw_status status
= VXGE_HW_OK
;
1125 struct macInfo mac_info
;
1127 struct vxge_mac_addrs
*mac_entry
;
1128 struct list_head
*list_head
;
1129 struct list_head
*entry
, *next
;
1130 u8
*mac_address
= NULL
;
1132 vxge_debug_entryexit(VXGE_TRACE
,
1133 "%s:%d", __func__
, __LINE__
);
1135 vdev
= (struct vxgedev
*)netdev_priv(dev
);
1136 hldev
= (struct __vxge_hw_device
*)vdev
->devh
;
1138 if (unlikely(!is_vxge_card_up(vdev
)))
1141 if ((dev
->flags
& IFF_ALLMULTI
) && (!vdev
->all_multi_flg
)) {
1142 for (i
= 0; i
< vdev
->no_of_vpath
; i
++) {
1143 vxge_assert(vdev
->vpaths
[i
].is_open
);
1144 status
= vxge_hw_vpath_mcast_enable(
1145 vdev
->vpaths
[i
].handle
);
1146 vdev
->all_multi_flg
= 1;
1148 } else if ((dev
->flags
& IFF_ALLMULTI
) && (vdev
->all_multi_flg
)) {
1149 for (i
= 0; i
< vdev
->no_of_vpath
; i
++) {
1150 vxge_assert(vdev
->vpaths
[i
].is_open
);
1151 status
= vxge_hw_vpath_mcast_disable(
1152 vdev
->vpaths
[i
].handle
);
1153 vdev
->all_multi_flg
= 1;
1157 if (status
!= VXGE_HW_OK
)
1158 vxge_debug_init(VXGE_ERR
,
1159 "failed to %s multicast, status %d",
1160 dev
->flags
& IFF_ALLMULTI
?
1161 "enable" : "disable", status
);
1163 if (!vdev
->config
.addr_learn_en
) {
1164 if (dev
->flags
& IFF_PROMISC
) {
1165 for (i
= 0; i
< vdev
->no_of_vpath
; i
++) {
1166 vxge_assert(vdev
->vpaths
[i
].is_open
);
1167 status
= vxge_hw_vpath_promisc_enable(
1168 vdev
->vpaths
[i
].handle
);
1171 for (i
= 0; i
< vdev
->no_of_vpath
; i
++) {
1172 vxge_assert(vdev
->vpaths
[i
].is_open
);
1173 status
= vxge_hw_vpath_promisc_disable(
1174 vdev
->vpaths
[i
].handle
);
1179 memset(&mac_info
, 0, sizeof(struct macInfo
));
1180 /* Update individual M_CAST address list */
1181 if ((!vdev
->all_multi_flg
) && netdev_mc_count(dev
)) {
1183 mcast_cnt
= vdev
->vpaths
[0].mcast_addr_cnt
;
1184 list_head
= &vdev
->vpaths
[0].mac_addr_list
;
1185 if ((netdev_mc_count(dev
) +
1186 (vdev
->vpaths
[0].mac_addr_cnt
- mcast_cnt
)) >
1187 vdev
->vpaths
[0].max_mac_addr_cnt
)
1188 goto _set_all_mcast
;
1190 /* Delete previous MC's */
1191 for (i
= 0; i
< mcast_cnt
; i
++) {
1192 if (!list_empty(list_head
))
1193 mac_entry
= (struct vxge_mac_addrs
*)
1194 list_first_entry(list_head
,
1195 struct vxge_mac_addrs
,
1198 list_for_each_safe(entry
, next
, list_head
) {
1200 mac_entry
= (struct vxge_mac_addrs
*) entry
;
1201 /* Copy the mac address to delete */
1202 mac_address
= (u8
*)&mac_entry
->macaddr
;
1203 memcpy(mac_info
.macaddr
, mac_address
, ETH_ALEN
);
1205 /* Is this a multicast address */
1206 if (0x01 & mac_info
.macaddr
[0]) {
1207 for (vpath_idx
= 0; vpath_idx
<
1210 mac_info
.vpath_no
= vpath_idx
;
1211 status
= vxge_del_mac_addr(
1220 netdev_for_each_mc_addr(mclist
, dev
) {
1221 memcpy(mac_info
.macaddr
, mclist
->dmi_addr
, ETH_ALEN
);
1222 for (vpath_idx
= 0; vpath_idx
< vdev
->no_of_vpath
;
1224 mac_info
.vpath_no
= vpath_idx
;
1225 mac_info
.state
= VXGE_LL_MAC_ADDR_IN_DA_TABLE
;
1226 status
= vxge_add_mac_addr(vdev
, &mac_info
);
1227 if (status
!= VXGE_HW_OK
) {
1228 vxge_debug_init(VXGE_ERR
,
1229 "%s:%d Setting individual"
1230 "multicast address failed",
1231 __func__
, __LINE__
);
1232 goto _set_all_mcast
;
1239 mcast_cnt
= vdev
->vpaths
[0].mcast_addr_cnt
;
1240 /* Delete previous MC's */
1241 for (i
= 0; i
< mcast_cnt
; i
++) {
1243 list_for_each_safe(entry
, next
, list_head
) {
1245 mac_entry
= (struct vxge_mac_addrs
*) entry
;
1246 /* Copy the mac address to delete */
1247 mac_address
= (u8
*)&mac_entry
->macaddr
;
1248 memcpy(mac_info
.macaddr
, mac_address
, ETH_ALEN
);
1250 /* Is this a multicast address */
1251 if (0x01 & mac_info
.macaddr
[0])
1255 for (vpath_idx
= 0; vpath_idx
< vdev
->no_of_vpath
;
1257 mac_info
.vpath_no
= vpath_idx
;
1258 status
= vxge_del_mac_addr(vdev
, &mac_info
);
1262 /* Enable all multicast */
1263 for (i
= 0; i
< vdev
->no_of_vpath
; i
++) {
1264 vxge_assert(vdev
->vpaths
[i
].is_open
);
1265 status
= vxge_hw_vpath_mcast_enable(
1266 vdev
->vpaths
[i
].handle
);
1267 if (status
!= VXGE_HW_OK
) {
1268 vxge_debug_init(VXGE_ERR
,
1269 "%s:%d Enabling all multicasts failed",
1270 __func__
, __LINE__
);
1272 vdev
->all_multi_flg
= 1;
1274 dev
->flags
|= IFF_ALLMULTI
;
1277 vxge_debug_entryexit(VXGE_TRACE
,
1278 "%s:%d Exiting...", __func__
, __LINE__
);
1283 * @dev: pointer to the device structure
1285 * Update entry "0" (default MAC addr)
1287 static int vxge_set_mac_addr(struct net_device
*dev
, void *p
)
1289 struct sockaddr
*addr
= p
;
1290 struct vxgedev
*vdev
;
1291 struct __vxge_hw_device
*hldev
;
1292 enum vxge_hw_status status
= VXGE_HW_OK
;
1293 struct macInfo mac_info_new
, mac_info_old
;
1296 vxge_debug_entryexit(VXGE_TRACE
, "%s:%d", __func__
, __LINE__
);
1298 vdev
= (struct vxgedev
*)netdev_priv(dev
);
1301 if (!is_valid_ether_addr(addr
->sa_data
))
1304 memset(&mac_info_new
, 0, sizeof(struct macInfo
));
1305 memset(&mac_info_old
, 0, sizeof(struct macInfo
));
1307 vxge_debug_entryexit(VXGE_TRACE
, "%s:%d Exiting...",
1308 __func__
, __LINE__
);
1310 /* Get the old address */
1311 memcpy(mac_info_old
.macaddr
, dev
->dev_addr
, dev
->addr_len
);
1313 /* Copy the new address */
1314 memcpy(mac_info_new
.macaddr
, addr
->sa_data
, dev
->addr_len
);
1316 /* First delete the old mac address from all the vpaths
1317 as we can't specify the index while adding new mac address */
1318 for (vpath_idx
= 0; vpath_idx
< vdev
->no_of_vpath
; vpath_idx
++) {
1319 struct vxge_vpath
*vpath
= &vdev
->vpaths
[vpath_idx
];
1320 if (!vpath
->is_open
) {
1321 /* This can happen when this interface is added/removed
1322 to the bonding interface. Delete this station address
1323 from the linked list */
1324 vxge_mac_list_del(vpath
, &mac_info_old
);
1326 /* Add this new address to the linked list
1327 for later restoring */
1328 vxge_mac_list_add(vpath
, &mac_info_new
);
1332 /* Delete the station address */
1333 mac_info_old
.vpath_no
= vpath_idx
;
1334 status
= vxge_del_mac_addr(vdev
, &mac_info_old
);
1337 if (unlikely(!is_vxge_card_up(vdev
))) {
1338 memcpy(dev
->dev_addr
, addr
->sa_data
, dev
->addr_len
);
1342 /* Set this mac address to all the vpaths */
1343 for (vpath_idx
= 0; vpath_idx
< vdev
->no_of_vpath
; vpath_idx
++) {
1344 mac_info_new
.vpath_no
= vpath_idx
;
1345 mac_info_new
.state
= VXGE_LL_MAC_ADDR_IN_DA_TABLE
;
1346 status
= vxge_add_mac_addr(vdev
, &mac_info_new
);
1347 if (status
!= VXGE_HW_OK
)
1351 memcpy(dev
->dev_addr
, addr
->sa_data
, dev
->addr_len
);
1357 * vxge_vpath_intr_enable
1358 * @vdev: pointer to vdev
1359 * @vp_id: vpath for which to enable the interrupts
1361 * Enables the interrupts for the vpath
1363 void vxge_vpath_intr_enable(struct vxgedev
*vdev
, int vp_id
)
1365 struct vxge_vpath
*vpath
= &vdev
->vpaths
[vp_id
];
1367 int tim_msix_id
[4] = {0, 1, 0, 0};
1368 int alarm_msix_id
= VXGE_ALARM_MSIX_ID
;
1370 vxge_hw_vpath_intr_enable(vpath
->handle
);
1372 if (vdev
->config
.intr_type
== INTA
)
1373 vxge_hw_vpath_inta_unmask_tx_rx(vpath
->handle
);
1375 vxge_hw_vpath_msix_set(vpath
->handle
, tim_msix_id
,
1378 msix_id
= vpath
->device_id
* VXGE_HW_VPATH_MSIX_ACTIVE
;
1379 vxge_hw_vpath_msix_unmask(vpath
->handle
, msix_id
);
1380 vxge_hw_vpath_msix_unmask(vpath
->handle
, msix_id
+ 1);
1382 /* enable the alarm vector */
1383 msix_id
= (vpath
->handle
->vpath
->hldev
->first_vp_id
*
1384 VXGE_HW_VPATH_MSIX_ACTIVE
) + alarm_msix_id
;
1385 vxge_hw_vpath_msix_unmask(vpath
->handle
, msix_id
);
1390 * vxge_vpath_intr_disable
1391 * @vdev: pointer to vdev
1392 * @vp_id: vpath for which to disable the interrupts
1394 * Disables the interrupts for the vpath
1396 void vxge_vpath_intr_disable(struct vxgedev
*vdev
, int vp_id
)
1398 struct vxge_vpath
*vpath
= &vdev
->vpaths
[vp_id
];
1401 vxge_hw_vpath_intr_disable(vpath
->handle
);
1403 if (vdev
->config
.intr_type
== INTA
)
1404 vxge_hw_vpath_inta_mask_tx_rx(vpath
->handle
);
1406 msix_id
= vpath
->device_id
* VXGE_HW_VPATH_MSIX_ACTIVE
;
1407 vxge_hw_vpath_msix_mask(vpath
->handle
, msix_id
);
1408 vxge_hw_vpath_msix_mask(vpath
->handle
, msix_id
+ 1);
1410 /* disable the alarm vector */
1411 msix_id
= (vpath
->handle
->vpath
->hldev
->first_vp_id
*
1412 VXGE_HW_VPATH_MSIX_ACTIVE
) + VXGE_ALARM_MSIX_ID
;
1413 vxge_hw_vpath_msix_mask(vpath
->handle
, msix_id
);
1419 * @vdev: pointer to vdev
1420 * @vp_id: vpath to reset
1424 static int vxge_reset_vpath(struct vxgedev
*vdev
, int vp_id
)
1426 enum vxge_hw_status status
= VXGE_HW_OK
;
1429 /* check if device is down already */
1430 if (unlikely(!is_vxge_card_up(vdev
)))
1433 /* is device reset already scheduled */
1434 if (test_bit(__VXGE_STATE_RESET_CARD
, &vdev
->state
))
1437 if (vdev
->vpaths
[vp_id
].handle
) {
1438 if (vxge_hw_vpath_reset(vdev
->vpaths
[vp_id
].handle
)
1440 if (is_vxge_card_up(vdev
) &&
1441 vxge_hw_vpath_recover_from_reset(
1442 vdev
->vpaths
[vp_id
].handle
)
1444 vxge_debug_init(VXGE_ERR
,
1445 "vxge_hw_vpath_recover_from_reset"
1446 "failed for vpath:%d", vp_id
);
1450 vxge_debug_init(VXGE_ERR
,
1451 "vxge_hw_vpath_reset failed for"
1456 return VXGE_HW_FAIL
;
1458 vxge_restore_vpath_mac_addr(&vdev
->vpaths
[vp_id
]);
1459 vxge_restore_vpath_vid_table(&vdev
->vpaths
[vp_id
]);
1461 /* Enable all broadcast */
1462 vxge_hw_vpath_bcast_enable(vdev
->vpaths
[vp_id
].handle
);
1464 /* Enable the interrupts */
1465 vxge_vpath_intr_enable(vdev
, vp_id
);
1469 /* Enable the flow of traffic through the vpath */
1470 vxge_hw_vpath_enable(vdev
->vpaths
[vp_id
].handle
);
1473 vxge_hw_vpath_rx_doorbell_init(vdev
->vpaths
[vp_id
].handle
);
1474 vdev
->vpaths
[vp_id
].ring
.last_status
= VXGE_HW_OK
;
1476 /* Vpath reset done */
1477 clear_bit(vp_id
, &vdev
->vp_reset
);
1479 /* Start the vpath queue */
1480 vxge_wake_tx_queue(&vdev
->vpaths
[vp_id
].fifo
, NULL
);
1485 static int do_vxge_reset(struct vxgedev
*vdev
, int event
)
1487 enum vxge_hw_status status
;
1488 int ret
= 0, vp_id
, i
;
1490 vxge_debug_entryexit(VXGE_TRACE
, "%s:%d", __func__
, __LINE__
);
1492 if ((event
== VXGE_LL_FULL_RESET
) || (event
== VXGE_LL_START_RESET
)) {
1493 /* check if device is down already */
1494 if (unlikely(!is_vxge_card_up(vdev
)))
1497 /* is reset already scheduled */
1498 if (test_and_set_bit(__VXGE_STATE_RESET_CARD
, &vdev
->state
))
1502 if (event
== VXGE_LL_FULL_RESET
) {
1503 /* wait for all the vpath reset to complete */
1504 for (vp_id
= 0; vp_id
< vdev
->no_of_vpath
; vp_id
++) {
1505 while (test_bit(vp_id
, &vdev
->vp_reset
))
1509 /* if execution mode is set to debug, don't reset the adapter */
1510 if (unlikely(vdev
->exec_mode
)) {
1511 vxge_debug_init(VXGE_ERR
,
1512 "%s: execution mode is debug, returning..",
1514 clear_bit(__VXGE_STATE_CARD_UP
, &vdev
->state
);
1515 vxge_stop_all_tx_queue(vdev
);
1520 if (event
== VXGE_LL_FULL_RESET
) {
1521 vxge_hw_device_intr_disable(vdev
->devh
);
1523 switch (vdev
->cric_err_event
) {
1524 case VXGE_HW_EVENT_UNKNOWN
:
1525 vxge_stop_all_tx_queue(vdev
);
1526 vxge_debug_init(VXGE_ERR
,
1527 "fatal: %s: Disabling device due to"
1532 case VXGE_HW_EVENT_RESET_START
:
1534 case VXGE_HW_EVENT_RESET_COMPLETE
:
1535 case VXGE_HW_EVENT_LINK_DOWN
:
1536 case VXGE_HW_EVENT_LINK_UP
:
1537 case VXGE_HW_EVENT_ALARM_CLEARED
:
1538 case VXGE_HW_EVENT_ECCERR
:
1539 case VXGE_HW_EVENT_MRPCIM_ECCERR
:
1542 case VXGE_HW_EVENT_FIFO_ERR
:
1543 case VXGE_HW_EVENT_VPATH_ERR
:
1545 case VXGE_HW_EVENT_CRITICAL_ERR
:
1546 vxge_stop_all_tx_queue(vdev
);
1547 vxge_debug_init(VXGE_ERR
,
1548 "fatal: %s: Disabling device due to"
1551 /* SOP or device reset required */
1552 /* This event is not currently used */
1555 case VXGE_HW_EVENT_SERR
:
1556 vxge_stop_all_tx_queue(vdev
);
1557 vxge_debug_init(VXGE_ERR
,
1558 "fatal: %s: Disabling device due to"
1563 case VXGE_HW_EVENT_SRPCIM_SERR
:
1564 case VXGE_HW_EVENT_MRPCIM_SERR
:
1567 case VXGE_HW_EVENT_SLOT_FREEZE
:
1568 vxge_stop_all_tx_queue(vdev
);
1569 vxge_debug_init(VXGE_ERR
,
1570 "fatal: %s: Disabling device due to"
1581 if ((event
== VXGE_LL_FULL_RESET
) || (event
== VXGE_LL_START_RESET
))
1582 vxge_stop_all_tx_queue(vdev
);
1584 if (event
== VXGE_LL_FULL_RESET
) {
1585 status
= vxge_reset_all_vpaths(vdev
);
1586 if (status
!= VXGE_HW_OK
) {
1587 vxge_debug_init(VXGE_ERR
,
1588 "fatal: %s: can not reset vpaths",
1595 if (event
== VXGE_LL_COMPL_RESET
) {
1596 for (i
= 0; i
< vdev
->no_of_vpath
; i
++)
1597 if (vdev
->vpaths
[i
].handle
) {
1598 if (vxge_hw_vpath_recover_from_reset(
1599 vdev
->vpaths
[i
].handle
)
1601 vxge_debug_init(VXGE_ERR
,
1602 "vxge_hw_vpath_recover_"
1603 "from_reset failed for vpath: "
1609 vxge_debug_init(VXGE_ERR
,
1610 "vxge_hw_vpath_reset failed for "
1617 if ((event
== VXGE_LL_FULL_RESET
) || (event
== VXGE_LL_COMPL_RESET
)) {
1618 /* Reprogram the DA table with populated mac addresses */
1619 for (vp_id
= 0; vp_id
< vdev
->no_of_vpath
; vp_id
++) {
1620 vxge_restore_vpath_mac_addr(&vdev
->vpaths
[vp_id
]);
1621 vxge_restore_vpath_vid_table(&vdev
->vpaths
[vp_id
]);
1624 /* enable vpath interrupts */
1625 for (i
= 0; i
< vdev
->no_of_vpath
; i
++)
1626 vxge_vpath_intr_enable(vdev
, i
);
1628 vxge_hw_device_intr_enable(vdev
->devh
);
1632 /* Indicate card up */
1633 set_bit(__VXGE_STATE_CARD_UP
, &vdev
->state
);
1635 /* Get the traffic to flow through the vpaths */
1636 for (i
= 0; i
< vdev
->no_of_vpath
; i
++) {
1637 vxge_hw_vpath_enable(vdev
->vpaths
[i
].handle
);
1639 vxge_hw_vpath_rx_doorbell_init(vdev
->vpaths
[i
].handle
);
1642 vxge_wake_all_tx_queue(vdev
);
1646 vxge_debug_entryexit(VXGE_TRACE
,
1647 "%s:%d Exiting...", __func__
, __LINE__
);
1649 /* Indicate reset done */
1650 if ((event
== VXGE_LL_FULL_RESET
) || (event
== VXGE_LL_COMPL_RESET
))
1651 clear_bit(__VXGE_STATE_RESET_CARD
, &vdev
->state
);
1657 * @vdev: pointer to ll device
1659 * driver may reset the chip on events of serr, eccerr, etc
1661 int vxge_reset(struct vxgedev
*vdev
)
1663 do_vxge_reset(vdev
, VXGE_LL_FULL_RESET
);
1668 * vxge_poll - Receive handler when Receive Polling is used.
1669 * @dev: pointer to the device structure.
1670 * @budget: Number of packets budgeted to be processed in this iteration.
1672 * This function comes into picture only if Receive side is being handled
1673 * through polling (called NAPI in linux). It mostly does what the normal
1674 * Rx interrupt handler does in terms of descriptor and packet processing
1675 * but not in an interrupt context. Also it will process a specified number
1676 * of packets at most in one iteration. This value is passed down by the
1677 * kernel as the function argument 'budget'.
1679 static int vxge_poll_msix(struct napi_struct
*napi
, int budget
)
1681 struct vxge_ring
*ring
=
1682 container_of(napi
, struct vxge_ring
, napi
);
1683 int budget_org
= budget
;
1684 ring
->budget
= budget
;
1686 vxge_hw_vpath_poll_rx(ring
->handle
);
1688 if (ring
->pkts_processed
< budget_org
) {
1689 napi_complete(napi
);
1690 /* Re enable the Rx interrupts for the vpath */
1691 vxge_hw_channel_msix_unmask(
1692 (struct __vxge_hw_channel
*)ring
->handle
,
1693 ring
->rx_vector_no
);
1696 return ring
->pkts_processed
;
1699 static int vxge_poll_inta(struct napi_struct
*napi
, int budget
)
1701 struct vxgedev
*vdev
= container_of(napi
, struct vxgedev
, napi
);
1702 int pkts_processed
= 0;
1704 int budget_org
= budget
;
1705 struct vxge_ring
*ring
;
1707 struct __vxge_hw_device
*hldev
= (struct __vxge_hw_device
*)
1708 pci_get_drvdata(vdev
->pdev
);
1710 for (i
= 0; i
< vdev
->no_of_vpath
; i
++) {
1711 ring
= &vdev
->vpaths
[i
].ring
;
1712 ring
->budget
= budget
;
1713 vxge_hw_vpath_poll_rx(ring
->handle
);
1714 pkts_processed
+= ring
->pkts_processed
;
1715 budget
-= ring
->pkts_processed
;
1720 VXGE_COMPLETE_ALL_TX(vdev
);
1722 if (pkts_processed
< budget_org
) {
1723 napi_complete(napi
);
1724 /* Re enable the Rx interrupts for the ring */
1725 vxge_hw_device_unmask_all(hldev
);
1726 vxge_hw_device_flush_io(hldev
);
1729 return pkts_processed
;
1732 #ifdef CONFIG_NET_POLL_CONTROLLER
1734 * vxge_netpoll - netpoll event handler entry point
1735 * @dev : pointer to the device structure.
1737 * This function will be called by upper layer to check for events on the
1738 * interface in situations where interrupts are disabled. It is used for
1739 * specific in-kernel networking tasks, such as remote consoles and kernel
1740 * debugging over the network (example netdump in RedHat).
1742 static void vxge_netpoll(struct net_device
*dev
)
1744 struct __vxge_hw_device
*hldev
;
1745 struct vxgedev
*vdev
;
1747 vdev
= (struct vxgedev
*)netdev_priv(dev
);
1748 hldev
= (struct __vxge_hw_device
*)pci_get_drvdata(vdev
->pdev
);
1750 vxge_debug_entryexit(VXGE_TRACE
, "%s:%d", __func__
, __LINE__
);
1752 if (pci_channel_offline(vdev
->pdev
))
1755 disable_irq(dev
->irq
);
1756 vxge_hw_device_clear_tx_rx(hldev
);
1758 vxge_hw_device_clear_tx_rx(hldev
);
1759 VXGE_COMPLETE_ALL_RX(vdev
);
1760 VXGE_COMPLETE_ALL_TX(vdev
);
1762 enable_irq(dev
->irq
);
1764 vxge_debug_entryexit(VXGE_TRACE
,
1765 "%s:%d Exiting...", __func__
, __LINE__
);
1770 /* RTH configuration */
1771 static enum vxge_hw_status
vxge_rth_configure(struct vxgedev
*vdev
)
1773 enum vxge_hw_status status
= VXGE_HW_OK
;
1774 struct vxge_hw_rth_hash_types hash_types
;
1775 u8 itable
[256] = {0}; /* indirection table */
1776 u8 mtable
[256] = {0}; /* CPU to vpath mapping */
1781 * - itable with bucket numbers
1782 * - mtable with bucket-to-vpath mapping
1784 for (index
= 0; index
< (1 << vdev
->config
.rth_bkt_sz
); index
++) {
1785 itable
[index
] = index
;
1786 mtable
[index
] = index
% vdev
->no_of_vpath
;
1789 /* Fill RTH hash types */
1790 hash_types
.hash_type_tcpipv4_en
= vdev
->config
.rth_hash_type_tcpipv4
;
1791 hash_types
.hash_type_ipv4_en
= vdev
->config
.rth_hash_type_ipv4
;
1792 hash_types
.hash_type_tcpipv6_en
= vdev
->config
.rth_hash_type_tcpipv6
;
1793 hash_types
.hash_type_ipv6_en
= vdev
->config
.rth_hash_type_ipv6
;
1794 hash_types
.hash_type_tcpipv6ex_en
=
1795 vdev
->config
.rth_hash_type_tcpipv6ex
;
1796 hash_types
.hash_type_ipv6ex_en
= vdev
->config
.rth_hash_type_ipv6ex
;
1798 /* set indirection table, bucket-to-vpath mapping */
1799 status
= vxge_hw_vpath_rts_rth_itable_set(vdev
->vp_handles
,
1802 vdev
->config
.rth_bkt_sz
);
1803 if (status
!= VXGE_HW_OK
) {
1804 vxge_debug_init(VXGE_ERR
,
1805 "RTH indirection table configuration failed "
1806 "for vpath:%d", vdev
->vpaths
[0].device_id
);
1811 * Because the itable_set() method uses the active_table field
1812 * for the target virtual path the RTH config should be updated
1813 * for all VPATHs. The h/w only uses the lowest numbered VPATH
1814 * when steering frames.
1816 for (index
= 0; index
< vdev
->no_of_vpath
; index
++) {
1817 status
= vxge_hw_vpath_rts_rth_set(
1818 vdev
->vpaths
[index
].handle
,
1819 vdev
->config
.rth_algorithm
,
1821 vdev
->config
.rth_bkt_sz
);
1823 if (status
!= VXGE_HW_OK
) {
1824 vxge_debug_init(VXGE_ERR
,
1825 "RTH configuration failed for vpath:%d",
1826 vdev
->vpaths
[index
].device_id
);
1834 int vxge_mac_list_add(struct vxge_vpath
*vpath
, struct macInfo
*mac
)
1836 struct vxge_mac_addrs
*new_mac_entry
;
1837 u8
*mac_address
= NULL
;
1839 if (vpath
->mac_addr_cnt
>= VXGE_MAX_LEARN_MAC_ADDR_CNT
)
1842 new_mac_entry
= kzalloc(sizeof(struct vxge_mac_addrs
), GFP_ATOMIC
);
1843 if (!new_mac_entry
) {
1844 vxge_debug_mem(VXGE_ERR
,
1845 "%s: memory allocation failed",
1850 list_add(&new_mac_entry
->item
, &vpath
->mac_addr_list
);
1852 /* Copy the new mac address to the list */
1853 mac_address
= (u8
*)&new_mac_entry
->macaddr
;
1854 memcpy(mac_address
, mac
->macaddr
, ETH_ALEN
);
1856 new_mac_entry
->state
= mac
->state
;
1857 vpath
->mac_addr_cnt
++;
1859 /* Is this a multicast address */
1860 if (0x01 & mac
->macaddr
[0])
1861 vpath
->mcast_addr_cnt
++;
1866 /* Add a mac address to DA table */
1867 enum vxge_hw_status
vxge_add_mac_addr(struct vxgedev
*vdev
, struct macInfo
*mac
)
1869 enum vxge_hw_status status
= VXGE_HW_OK
;
1870 struct vxge_vpath
*vpath
;
1871 enum vxge_hw_vpath_mac_addr_add_mode duplicate_mode
;
1873 if (0x01 & mac
->macaddr
[0]) /* multicast address */
1874 duplicate_mode
= VXGE_HW_VPATH_MAC_ADDR_ADD_DUPLICATE
;
1876 duplicate_mode
= VXGE_HW_VPATH_MAC_ADDR_REPLACE_DUPLICATE
;
1878 vpath
= &vdev
->vpaths
[mac
->vpath_no
];
1879 status
= vxge_hw_vpath_mac_addr_add(vpath
->handle
, mac
->macaddr
,
1880 mac
->macmask
, duplicate_mode
);
1881 if (status
!= VXGE_HW_OK
) {
1882 vxge_debug_init(VXGE_ERR
,
1883 "DA config add entry failed for vpath:%d",
1886 if (FALSE
== vxge_mac_list_add(vpath
, mac
))
1892 int vxge_mac_list_del(struct vxge_vpath
*vpath
, struct macInfo
*mac
)
1894 struct list_head
*entry
, *next
;
1896 u8
*mac_address
= (u8
*) (&del_mac
);
1898 /* Copy the mac address to delete from the list */
1899 memcpy(mac_address
, mac
->macaddr
, ETH_ALEN
);
1901 list_for_each_safe(entry
, next
, &vpath
->mac_addr_list
) {
1902 if (((struct vxge_mac_addrs
*)entry
)->macaddr
== del_mac
) {
1904 kfree((struct vxge_mac_addrs
*)entry
);
1905 vpath
->mac_addr_cnt
--;
1907 /* Is this a multicast address */
1908 if (0x01 & mac
->macaddr
[0])
1909 vpath
->mcast_addr_cnt
--;
1916 /* delete a mac address from DA table */
1917 enum vxge_hw_status
vxge_del_mac_addr(struct vxgedev
*vdev
, struct macInfo
*mac
)
1919 enum vxge_hw_status status
= VXGE_HW_OK
;
1920 struct vxge_vpath
*vpath
;
1922 vpath
= &vdev
->vpaths
[mac
->vpath_no
];
1923 status
= vxge_hw_vpath_mac_addr_delete(vpath
->handle
, mac
->macaddr
,
1925 if (status
!= VXGE_HW_OK
) {
1926 vxge_debug_init(VXGE_ERR
,
1927 "DA config delete entry failed for vpath:%d",
1930 vxge_mac_list_del(vpath
, mac
);
1934 /* list all mac addresses from DA table */
1936 static vxge_search_mac_addr_in_da_table(struct vxge_vpath
*vpath
,
1937 struct macInfo
*mac
)
1939 enum vxge_hw_status status
= VXGE_HW_OK
;
1940 unsigned char macmask
[ETH_ALEN
];
1941 unsigned char macaddr
[ETH_ALEN
];
1943 status
= vxge_hw_vpath_mac_addr_get(vpath
->handle
,
1945 if (status
!= VXGE_HW_OK
) {
1946 vxge_debug_init(VXGE_ERR
,
1947 "DA config list entry failed for vpath:%d",
1952 while (memcmp(mac
->macaddr
, macaddr
, ETH_ALEN
)) {
1954 status
= vxge_hw_vpath_mac_addr_get_next(vpath
->handle
,
1956 if (status
!= VXGE_HW_OK
)
1963 /* Store all vlan ids from the list to the vid table */
1964 enum vxge_hw_status
vxge_restore_vpath_vid_table(struct vxge_vpath
*vpath
)
1966 enum vxge_hw_status status
= VXGE_HW_OK
;
1967 struct vxgedev
*vdev
= vpath
->vdev
;
1970 if (vdev
->vlgrp
&& vpath
->is_open
) {
1972 for (vid
= 0; vid
< VLAN_GROUP_ARRAY_LEN
; vid
++) {
1973 if (!vlan_group_get_device(vdev
->vlgrp
, vid
))
1975 /* Add these vlan to the vid table */
1976 status
= vxge_hw_vpath_vid_add(vpath
->handle
, vid
);
1983 /* Store all mac addresses from the list to the DA table */
1984 enum vxge_hw_status
vxge_restore_vpath_mac_addr(struct vxge_vpath
*vpath
)
1986 enum vxge_hw_status status
= VXGE_HW_OK
;
1987 struct macInfo mac_info
;
1988 u8
*mac_address
= NULL
;
1989 struct list_head
*entry
, *next
;
1991 memset(&mac_info
, 0, sizeof(struct macInfo
));
1993 if (vpath
->is_open
) {
1995 list_for_each_safe(entry
, next
, &vpath
->mac_addr_list
) {
1998 ((struct vxge_mac_addrs
*)entry
)->macaddr
;
1999 memcpy(mac_info
.macaddr
, mac_address
, ETH_ALEN
);
2000 ((struct vxge_mac_addrs
*)entry
)->state
=
2001 VXGE_LL_MAC_ADDR_IN_DA_TABLE
;
2002 /* does this mac address already exist in da table? */
2003 status
= vxge_search_mac_addr_in_da_table(vpath
,
2005 if (status
!= VXGE_HW_OK
) {
2006 /* Add this mac address to the DA table */
2007 status
= vxge_hw_vpath_mac_addr_add(
2008 vpath
->handle
, mac_info
.macaddr
,
2010 VXGE_HW_VPATH_MAC_ADDR_ADD_DUPLICATE
);
2011 if (status
!= VXGE_HW_OK
) {
2012 vxge_debug_init(VXGE_ERR
,
2013 "DA add entry failed for vpath:%d",
2015 ((struct vxge_mac_addrs
*)entry
)->state
2016 = VXGE_LL_MAC_ADDR_IN_LIST
;
2026 enum vxge_hw_status
vxge_reset_all_vpaths(struct vxgedev
*vdev
)
2029 enum vxge_hw_status status
= VXGE_HW_OK
;
2031 for (i
= 0; i
< vdev
->no_of_vpath
; i
++)
2032 if (vdev
->vpaths
[i
].handle
) {
2033 if (vxge_hw_vpath_reset(vdev
->vpaths
[i
].handle
)
2035 if (is_vxge_card_up(vdev
) &&
2036 vxge_hw_vpath_recover_from_reset(
2037 vdev
->vpaths
[i
].handle
)
2039 vxge_debug_init(VXGE_ERR
,
2040 "vxge_hw_vpath_recover_"
2041 "from_reset failed for vpath: "
2046 vxge_debug_init(VXGE_ERR
,
2047 "vxge_hw_vpath_reset failed for "
2056 void vxge_close_vpaths(struct vxgedev
*vdev
, int index
)
2059 for (i
= index
; i
< vdev
->no_of_vpath
; i
++) {
2060 if (vdev
->vpaths
[i
].handle
&& vdev
->vpaths
[i
].is_open
) {
2061 vxge_hw_vpath_close(vdev
->vpaths
[i
].handle
);
2062 vdev
->stats
.vpaths_open
--;
2064 vdev
->vpaths
[i
].is_open
= 0;
2065 vdev
->vpaths
[i
].handle
= NULL
;
2070 int vxge_open_vpaths(struct vxgedev
*vdev
)
2072 enum vxge_hw_status status
;
2075 struct vxge_hw_vpath_attr attr
;
2077 for (i
= 0; i
< vdev
->no_of_vpath
; i
++) {
2078 vxge_assert(vdev
->vpaths
[i
].is_configured
);
2079 attr
.vp_id
= vdev
->vpaths
[i
].device_id
;
2080 attr
.fifo_attr
.callback
= vxge_xmit_compl
;
2081 attr
.fifo_attr
.txdl_term
= vxge_tx_term
;
2082 attr
.fifo_attr
.per_txdl_space
= sizeof(struct vxge_tx_priv
);
2083 attr
.fifo_attr
.userdata
= (void *)&vdev
->vpaths
[i
].fifo
;
2085 attr
.ring_attr
.callback
= vxge_rx_1b_compl
;
2086 attr
.ring_attr
.rxd_init
= vxge_rx_initial_replenish
;
2087 attr
.ring_attr
.rxd_term
= vxge_rx_term
;
2088 attr
.ring_attr
.per_rxd_space
= sizeof(struct vxge_rx_priv
);
2089 attr
.ring_attr
.userdata
= (void *)&vdev
->vpaths
[i
].ring
;
2091 vdev
->vpaths
[i
].ring
.ndev
= vdev
->ndev
;
2092 vdev
->vpaths
[i
].ring
.pdev
= vdev
->pdev
;
2093 status
= vxge_hw_vpath_open(vdev
->devh
, &attr
,
2094 &(vdev
->vpaths
[i
].handle
));
2095 if (status
== VXGE_HW_OK
) {
2096 vdev
->vpaths
[i
].fifo
.handle
=
2097 (struct __vxge_hw_fifo
*)attr
.fifo_attr
.userdata
;
2098 vdev
->vpaths
[i
].ring
.handle
=
2099 (struct __vxge_hw_ring
*)attr
.ring_attr
.userdata
;
2100 vdev
->vpaths
[i
].fifo
.tx_steering_type
=
2101 vdev
->config
.tx_steering_type
;
2102 vdev
->vpaths
[i
].fifo
.ndev
= vdev
->ndev
;
2103 vdev
->vpaths
[i
].fifo
.pdev
= vdev
->pdev
;
2104 vdev
->vpaths
[i
].fifo
.indicate_max_pkts
=
2105 vdev
->config
.fifo_indicate_max_pkts
;
2106 vdev
->vpaths
[i
].ring
.rx_vector_no
= 0;
2107 vdev
->vpaths
[i
].ring
.rx_csum
= vdev
->rx_csum
;
2108 vdev
->vpaths
[i
].is_open
= 1;
2109 vdev
->vp_handles
[i
] = vdev
->vpaths
[i
].handle
;
2110 vdev
->vpaths
[i
].ring
.gro_enable
=
2111 vdev
->config
.gro_enable
;
2112 vdev
->vpaths
[i
].ring
.vlan_tag_strip
=
2113 vdev
->vlan_tag_strip
;
2114 vdev
->stats
.vpaths_open
++;
2116 vdev
->stats
.vpath_open_fail
++;
2117 vxge_debug_init(VXGE_ERR
,
2118 "%s: vpath: %d failed to open "
2120 vdev
->ndev
->name
, vdev
->vpaths
[i
].device_id
,
2122 vxge_close_vpaths(vdev
, 0);
2127 ((struct __vxge_hw_vpath_handle
*)vdev
->vpaths
[i
].handle
)->
2129 vdev
->vpaths_deployed
|= vxge_mBIT(vp_id
);
2136 * @irq: the irq of the device.
2137 * @dev_id: a void pointer to the hldev structure of the Titan device
2138 * @ptregs: pointer to the registers pushed on the stack.
2140 * This function is the ISR handler of the device when napi is enabled. It
2141 * identifies the reason for the interrupt and calls the relevant service
2144 static irqreturn_t
vxge_isr_napi(int irq
, void *dev_id
)
2146 struct net_device
*dev
;
2147 struct __vxge_hw_device
*hldev
;
2149 enum vxge_hw_status status
;
2150 struct vxgedev
*vdev
= (struct vxgedev
*) dev_id
;;
2152 vxge_debug_intr(VXGE_TRACE
, "%s:%d", __func__
, __LINE__
);
2155 hldev
= (struct __vxge_hw_device
*)pci_get_drvdata(vdev
->pdev
);
2157 if (pci_channel_offline(vdev
->pdev
))
2160 if (unlikely(!is_vxge_card_up(vdev
)))
2163 status
= vxge_hw_device_begin_irq(hldev
, vdev
->exec_mode
,
2165 if (status
== VXGE_HW_OK
) {
2166 vxge_hw_device_mask_all(hldev
);
2169 VXGE_HW_TITAN_GENERAL_INT_STATUS_VPATH_TRAFFIC_INT(
2170 vdev
->vpaths_deployed
>>
2171 (64 - VXGE_HW_MAX_VIRTUAL_PATHS
))) {
2173 vxge_hw_device_clear_tx_rx(hldev
);
2174 napi_schedule(&vdev
->napi
);
2175 vxge_debug_intr(VXGE_TRACE
,
2176 "%s:%d Exiting...", __func__
, __LINE__
);
2179 vxge_hw_device_unmask_all(hldev
);
2180 } else if (unlikely((status
== VXGE_HW_ERR_VPATH
) ||
2181 (status
== VXGE_HW_ERR_CRITICAL
) ||
2182 (status
== VXGE_HW_ERR_FIFO
))) {
2183 vxge_hw_device_mask_all(hldev
);
2184 vxge_hw_device_flush_io(hldev
);
2186 } else if (unlikely(status
== VXGE_HW_ERR_SLOT_FREEZE
))
2189 vxge_debug_intr(VXGE_TRACE
, "%s:%d Exiting...", __func__
, __LINE__
);
2193 #ifdef CONFIG_PCI_MSI
2196 vxge_tx_msix_handle(int irq
, void *dev_id
)
2198 struct vxge_fifo
*fifo
= (struct vxge_fifo
*)dev_id
;
2200 VXGE_COMPLETE_VPATH_TX(fifo
);
2206 vxge_rx_msix_napi_handle(int irq
, void *dev_id
)
2208 struct vxge_ring
*ring
= (struct vxge_ring
*)dev_id
;
2210 /* MSIX_IDX for Rx is 1 */
2211 vxge_hw_channel_msix_mask((struct __vxge_hw_channel
*)ring
->handle
,
2212 ring
->rx_vector_no
);
2214 napi_schedule(&ring
->napi
);
2219 vxge_alarm_msix_handle(int irq
, void *dev_id
)
2222 enum vxge_hw_status status
;
2223 struct vxge_vpath
*vpath
= (struct vxge_vpath
*)dev_id
;
2224 struct vxgedev
*vdev
= vpath
->vdev
;
2225 int msix_id
= (vpath
->handle
->vpath
->vp_id
*
2226 VXGE_HW_VPATH_MSIX_ACTIVE
) + VXGE_ALARM_MSIX_ID
;
2228 for (i
= 0; i
< vdev
->no_of_vpath
; i
++) {
2229 vxge_hw_vpath_msix_mask(vdev
->vpaths
[i
].handle
, msix_id
);
2231 status
= vxge_hw_vpath_alarm_process(vdev
->vpaths
[i
].handle
,
2233 if (status
== VXGE_HW_OK
) {
2235 vxge_hw_vpath_msix_unmask(vdev
->vpaths
[i
].handle
,
2239 vxge_debug_intr(VXGE_ERR
,
2240 "%s: vxge_hw_vpath_alarm_process failed %x ",
2241 VXGE_DRIVER_NAME
, status
);
2246 static int vxge_alloc_msix(struct vxgedev
*vdev
)
2249 int msix_intr_vect
= 0, temp
;
2253 /* Tx/Rx MSIX Vectors count */
2254 vdev
->intr_cnt
= vdev
->no_of_vpath
* 2;
2256 /* Alarm MSIX Vectors count */
2259 vdev
->entries
= kzalloc(vdev
->intr_cnt
* sizeof(struct msix_entry
),
2261 if (!vdev
->entries
) {
2262 vxge_debug_init(VXGE_ERR
,
2263 "%s: memory allocation failed",
2268 vdev
->vxge_entries
=
2269 kzalloc(vdev
->intr_cnt
* sizeof(struct vxge_msix_entry
),
2271 if (!vdev
->vxge_entries
) {
2272 vxge_debug_init(VXGE_ERR
, "%s: memory allocation failed",
2274 kfree(vdev
->entries
);
2278 for (i
= 0, j
= 0; i
< vdev
->no_of_vpath
; i
++) {
2280 msix_intr_vect
= i
* VXGE_HW_VPATH_MSIX_ACTIVE
;
2282 /* Initialize the fifo vector */
2283 vdev
->entries
[j
].entry
= msix_intr_vect
;
2284 vdev
->vxge_entries
[j
].entry
= msix_intr_vect
;
2285 vdev
->vxge_entries
[j
].in_use
= 0;
2288 /* Initialize the ring vector */
2289 vdev
->entries
[j
].entry
= msix_intr_vect
+ 1;
2290 vdev
->vxge_entries
[j
].entry
= msix_intr_vect
+ 1;
2291 vdev
->vxge_entries
[j
].in_use
= 0;
2295 /* Initialize the alarm vector */
2296 vdev
->entries
[j
].entry
= VXGE_ALARM_MSIX_ID
;
2297 vdev
->vxge_entries
[j
].entry
= VXGE_ALARM_MSIX_ID
;
2298 vdev
->vxge_entries
[j
].in_use
= 0;
2300 ret
= pci_enable_msix(vdev
->pdev
, vdev
->entries
, vdev
->intr_cnt
);
2303 vxge_debug_init(VXGE_ERR
,
2304 "%s: MSI-X enable failed for %d vectors, ret: %d",
2305 VXGE_DRIVER_NAME
, vdev
->intr_cnt
, ret
);
2306 kfree(vdev
->entries
);
2307 kfree(vdev
->vxge_entries
);
2308 vdev
->entries
= NULL
;
2309 vdev
->vxge_entries
= NULL
;
2311 if ((max_config_vpath
!= VXGE_USE_DEFAULT
) || (ret
< 3))
2313 /* Try with less no of vector by reducing no of vpaths count */
2315 vxge_close_vpaths(vdev
, temp
);
2316 vdev
->no_of_vpath
= temp
;
2324 static int vxge_enable_msix(struct vxgedev
*vdev
)
2328 /* 0 - Tx, 1 - Rx */
2329 int tim_msix_id
[4] = {0, 1, 0, 0};
2333 /* allocate msix vectors */
2334 ret
= vxge_alloc_msix(vdev
);
2336 for (i
= 0; i
< vdev
->no_of_vpath
; i
++) {
2338 /* If fifo or ring are not enabled
2339 the MSIX vector for that should be set to 0
2340 Hence initializeing this array to all 0s.
2342 vdev
->vpaths
[i
].ring
.rx_vector_no
=
2343 (vdev
->vpaths
[i
].device_id
*
2344 VXGE_HW_VPATH_MSIX_ACTIVE
) + 1;
2346 vxge_hw_vpath_msix_set(vdev
->vpaths
[i
].handle
,
2347 tim_msix_id
, VXGE_ALARM_MSIX_ID
);
2354 static void vxge_rem_msix_isr(struct vxgedev
*vdev
)
2358 for (intr_cnt
= 0; intr_cnt
< (vdev
->no_of_vpath
* 2 + 1);
2360 if (vdev
->vxge_entries
[intr_cnt
].in_use
) {
2361 synchronize_irq(vdev
->entries
[intr_cnt
].vector
);
2362 free_irq(vdev
->entries
[intr_cnt
].vector
,
2363 vdev
->vxge_entries
[intr_cnt
].arg
);
2364 vdev
->vxge_entries
[intr_cnt
].in_use
= 0;
2368 kfree(vdev
->entries
);
2369 kfree(vdev
->vxge_entries
);
2370 vdev
->entries
= NULL
;
2371 vdev
->vxge_entries
= NULL
;
2373 if (vdev
->config
.intr_type
== MSI_X
)
2374 pci_disable_msix(vdev
->pdev
);
2378 static void vxge_rem_isr(struct vxgedev
*vdev
)
2380 struct __vxge_hw_device
*hldev
;
2381 hldev
= (struct __vxge_hw_device
*) pci_get_drvdata(vdev
->pdev
);
2383 #ifdef CONFIG_PCI_MSI
2384 if (vdev
->config
.intr_type
== MSI_X
) {
2385 vxge_rem_msix_isr(vdev
);
2388 if (vdev
->config
.intr_type
== INTA
) {
2389 synchronize_irq(vdev
->pdev
->irq
);
2390 free_irq(vdev
->pdev
->irq
, vdev
);
2394 static int vxge_add_isr(struct vxgedev
*vdev
)
2397 #ifdef CONFIG_PCI_MSI
2398 int vp_idx
= 0, intr_idx
= 0, intr_cnt
= 0, msix_idx
= 0, irq_req
= 0;
2399 int pci_fun
= PCI_FUNC(vdev
->pdev
->devfn
);
2401 if (vdev
->config
.intr_type
== MSI_X
)
2402 ret
= vxge_enable_msix(vdev
);
2405 vxge_debug_init(VXGE_ERR
,
2406 "%s: Enabling MSI-X Failed", VXGE_DRIVER_NAME
);
2407 vxge_debug_init(VXGE_ERR
,
2408 "%s: Defaulting to INTA", VXGE_DRIVER_NAME
);
2409 vdev
->config
.intr_type
= INTA
;
2412 if (vdev
->config
.intr_type
== MSI_X
) {
2414 intr_idx
< (vdev
->no_of_vpath
*
2415 VXGE_HW_VPATH_MSIX_ACTIVE
); intr_idx
++) {
2417 msix_idx
= intr_idx
% VXGE_HW_VPATH_MSIX_ACTIVE
;
2422 snprintf(vdev
->desc
[intr_cnt
], VXGE_INTR_STRLEN
,
2423 "%s:vxge:MSI-X %d - Tx - fn:%d vpath:%d",
2425 vdev
->entries
[intr_cnt
].entry
,
2428 vdev
->entries
[intr_cnt
].vector
,
2429 vxge_tx_msix_handle
, 0,
2430 vdev
->desc
[intr_cnt
],
2431 &vdev
->vpaths
[vp_idx
].fifo
);
2432 vdev
->vxge_entries
[intr_cnt
].arg
=
2433 &vdev
->vpaths
[vp_idx
].fifo
;
2437 snprintf(vdev
->desc
[intr_cnt
], VXGE_INTR_STRLEN
,
2438 "%s:vxge:MSI-X %d - Rx - fn:%d vpath:%d",
2440 vdev
->entries
[intr_cnt
].entry
,
2443 vdev
->entries
[intr_cnt
].vector
,
2444 vxge_rx_msix_napi_handle
,
2446 vdev
->desc
[intr_cnt
],
2447 &vdev
->vpaths
[vp_idx
].ring
);
2448 vdev
->vxge_entries
[intr_cnt
].arg
=
2449 &vdev
->vpaths
[vp_idx
].ring
;
2455 vxge_debug_init(VXGE_ERR
,
2456 "%s: MSIX - %d Registration failed",
2457 vdev
->ndev
->name
, intr_cnt
);
2458 vxge_rem_msix_isr(vdev
);
2459 vdev
->config
.intr_type
= INTA
;
2460 vxge_debug_init(VXGE_ERR
,
2461 "%s: Defaulting to INTA"
2462 , vdev
->ndev
->name
);
2467 /* We requested for this msix interrupt */
2468 vdev
->vxge_entries
[intr_cnt
].in_use
= 1;
2469 msix_idx
+= vdev
->vpaths
[vp_idx
].device_id
*
2470 VXGE_HW_VPATH_MSIX_ACTIVE
;
2471 vxge_hw_vpath_msix_unmask(
2472 vdev
->vpaths
[vp_idx
].handle
,
2477 /* Point to next vpath handler */
2478 if (((intr_idx
+ 1) % VXGE_HW_VPATH_MSIX_ACTIVE
== 0) &&
2479 (vp_idx
< (vdev
->no_of_vpath
- 1)))
2483 intr_cnt
= vdev
->no_of_vpath
* 2;
2484 snprintf(vdev
->desc
[intr_cnt
], VXGE_INTR_STRLEN
,
2485 "%s:vxge:MSI-X %d - Alarm - fn:%d",
2487 vdev
->entries
[intr_cnt
].entry
,
2489 /* For Alarm interrupts */
2490 ret
= request_irq(vdev
->entries
[intr_cnt
].vector
,
2491 vxge_alarm_msix_handle
, 0,
2492 vdev
->desc
[intr_cnt
],
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 vdev
->config
.intr_type
= INTA
;
2500 vxge_debug_init(VXGE_ERR
,
2501 "%s: Defaulting to INTA",
2506 msix_idx
= (vdev
->vpaths
[0].handle
->vpath
->vp_id
*
2507 VXGE_HW_VPATH_MSIX_ACTIVE
) + VXGE_ALARM_MSIX_ID
;
2508 vxge_hw_vpath_msix_unmask(vdev
->vpaths
[vp_idx
].handle
,
2510 vdev
->vxge_entries
[intr_cnt
].in_use
= 1;
2511 vdev
->vxge_entries
[intr_cnt
].arg
= &vdev
->vpaths
[0];
2516 if (vdev
->config
.intr_type
== INTA
) {
2517 snprintf(vdev
->desc
[0], VXGE_INTR_STRLEN
,
2518 "%s:vxge:INTA", vdev
->ndev
->name
);
2519 vxge_hw_device_set_intr_type(vdev
->devh
,
2520 VXGE_HW_INTR_MODE_IRQLINE
);
2521 vxge_hw_vpath_tti_ci_set(vdev
->devh
,
2522 vdev
->vpaths
[0].device_id
);
2523 ret
= request_irq((int) vdev
->pdev
->irq
,
2525 IRQF_SHARED
, vdev
->desc
[0], vdev
);
2527 vxge_debug_init(VXGE_ERR
,
2528 "%s %s-%d: ISR registration failed",
2529 VXGE_DRIVER_NAME
, "IRQ", vdev
->pdev
->irq
);
2532 vxge_debug_init(VXGE_TRACE
,
2533 "new %s-%d line allocated",
2534 "IRQ", vdev
->pdev
->irq
);
2540 static void vxge_poll_vp_reset(unsigned long data
)
2542 struct vxgedev
*vdev
= (struct vxgedev
*)data
;
2545 for (i
= 0; i
< vdev
->no_of_vpath
; i
++) {
2546 if (test_bit(i
, &vdev
->vp_reset
)) {
2547 vxge_reset_vpath(vdev
, i
);
2551 if (j
&& (vdev
->config
.intr_type
!= MSI_X
)) {
2552 vxge_hw_device_unmask_all(vdev
->devh
);
2553 vxge_hw_device_flush_io(vdev
->devh
);
2556 mod_timer(&vdev
->vp_reset_timer
, jiffies
+ HZ
/ 2);
2559 static void vxge_poll_vp_lockup(unsigned long data
)
2561 struct vxgedev
*vdev
= (struct vxgedev
*)data
;
2563 struct vxge_ring
*ring
;
2564 enum vxge_hw_status status
= VXGE_HW_OK
;
2566 for (i
= 0; i
< vdev
->no_of_vpath
; i
++) {
2567 ring
= &vdev
->vpaths
[i
].ring
;
2568 /* Did this vpath received any packets */
2569 if (ring
->stats
.prev_rx_frms
== ring
->stats
.rx_frms
) {
2570 status
= vxge_hw_vpath_check_leak(ring
->handle
);
2572 /* Did it received any packets last time */
2573 if ((VXGE_HW_FAIL
== status
) &&
2574 (VXGE_HW_FAIL
== ring
->last_status
)) {
2576 /* schedule vpath reset */
2577 if (!test_and_set_bit(i
, &vdev
->vp_reset
)) {
2579 /* disable interrupts for this vpath */
2580 vxge_vpath_intr_disable(vdev
, i
);
2582 /* stop the queue for this vpath */
2583 vxge_stop_tx_queue(&vdev
->vpaths
[i
].
2589 ring
->stats
.prev_rx_frms
= ring
->stats
.rx_frms
;
2590 ring
->last_status
= status
;
2593 /* Check every 1 milli second */
2594 mod_timer(&vdev
->vp_lockup_timer
, jiffies
+ HZ
/ 1000);
2599 * @dev: pointer to the device structure.
2601 * This function is the open entry point of the driver. It mainly calls a
2602 * function to allocate Rx buffers and inserts them into the buffer
2603 * descriptors and then enables the Rx part of the NIC.
2604 * Return value: '0' on success and an appropriate (-)ve integer as
2605 * defined in errno.h file on failure.
2608 vxge_open(struct net_device
*dev
)
2610 enum vxge_hw_status status
;
2611 struct vxgedev
*vdev
;
2612 struct __vxge_hw_device
*hldev
;
2615 u64 val64
, function_mode
;
2616 vxge_debug_entryexit(VXGE_TRACE
,
2617 "%s: %s:%d", dev
->name
, __func__
, __LINE__
);
2619 vdev
= (struct vxgedev
*)netdev_priv(dev
);
2620 hldev
= (struct __vxge_hw_device
*) pci_get_drvdata(vdev
->pdev
);
2621 function_mode
= vdev
->config
.device_hw_info
.function_mode
;
2623 /* make sure you have link off by default every time Nic is
2625 netif_carrier_off(dev
);
2628 status
= vxge_open_vpaths(vdev
);
2629 if (status
!= VXGE_HW_OK
) {
2630 vxge_debug_init(VXGE_ERR
,
2631 "%s: fatal: Vpath open failed", vdev
->ndev
->name
);
2636 vdev
->mtu
= dev
->mtu
;
2638 status
= vxge_add_isr(vdev
);
2639 if (status
!= VXGE_HW_OK
) {
2640 vxge_debug_init(VXGE_ERR
,
2641 "%s: fatal: ISR add failed", dev
->name
);
2647 if (vdev
->config
.intr_type
!= MSI_X
) {
2648 netif_napi_add(dev
, &vdev
->napi
, vxge_poll_inta
,
2649 vdev
->config
.napi_weight
);
2650 napi_enable(&vdev
->napi
);
2651 for (i
= 0; i
< vdev
->no_of_vpath
; i
++)
2652 vdev
->vpaths
[i
].ring
.napi_p
= &vdev
->napi
;
2654 for (i
= 0; i
< vdev
->no_of_vpath
; i
++) {
2655 netif_napi_add(dev
, &vdev
->vpaths
[i
].ring
.napi
,
2656 vxge_poll_msix
, vdev
->config
.napi_weight
);
2657 napi_enable(&vdev
->vpaths
[i
].ring
.napi
);
2658 vdev
->vpaths
[i
].ring
.napi_p
=
2659 &vdev
->vpaths
[i
].ring
.napi
;
2664 if (vdev
->config
.rth_steering
) {
2665 status
= vxge_rth_configure(vdev
);
2666 if (status
!= VXGE_HW_OK
) {
2667 vxge_debug_init(VXGE_ERR
,
2668 "%s: fatal: RTH configuration failed",
2675 for (i
= 0; i
< vdev
->no_of_vpath
; i
++) {
2676 /* set initial mtu before enabling the device */
2677 status
= vxge_hw_vpath_mtu_set(vdev
->vpaths
[i
].handle
,
2679 if (status
!= VXGE_HW_OK
) {
2680 vxge_debug_init(VXGE_ERR
,
2681 "%s: fatal: can not set new MTU", dev
->name
);
2687 VXGE_DEVICE_DEBUG_LEVEL_SET(VXGE_TRACE
, VXGE_COMPONENT_LL
, vdev
);
2688 vxge_debug_init(vdev
->level_trace
,
2689 "%s: MTU is %d", vdev
->ndev
->name
, vdev
->mtu
);
2690 VXGE_DEVICE_DEBUG_LEVEL_SET(VXGE_ERR
, VXGE_COMPONENT_LL
, vdev
);
2692 /* Reprogram the DA table with populated mac addresses */
2693 for (i
= 0; i
< vdev
->no_of_vpath
; i
++) {
2694 vxge_restore_vpath_mac_addr(&vdev
->vpaths
[i
]);
2695 vxge_restore_vpath_vid_table(&vdev
->vpaths
[i
]);
2698 /* Enable vpath to sniff all unicast/multicast traffic that not
2699 * addressed to them. We allow promiscous mode for PF only
2703 for (i
= 0; i
< VXGE_HW_MAX_VIRTUAL_PATHS
; i
++)
2704 val64
|= VXGE_HW_RXMAC_AUTHORIZE_ALL_ADDR_VP(i
);
2706 vxge_hw_mgmt_reg_write(vdev
->devh
,
2707 vxge_hw_mgmt_reg_type_mrpcim
,
2709 (ulong
)offsetof(struct vxge_hw_mrpcim_reg
,
2710 rxmac_authorize_all_addr
),
2713 vxge_hw_mgmt_reg_write(vdev
->devh
,
2714 vxge_hw_mgmt_reg_type_mrpcim
,
2716 (ulong
)offsetof(struct vxge_hw_mrpcim_reg
,
2717 rxmac_authorize_all_vid
),
2720 vxge_set_multicast(dev
);
2722 /* Enabling Bcast and mcast for all vpath */
2723 for (i
= 0; i
< vdev
->no_of_vpath
; i
++) {
2724 status
= vxge_hw_vpath_bcast_enable(vdev
->vpaths
[i
].handle
);
2725 if (status
!= VXGE_HW_OK
)
2726 vxge_debug_init(VXGE_ERR
,
2727 "%s : Can not enable bcast for vpath "
2728 "id %d", dev
->name
, i
);
2729 if (vdev
->config
.addr_learn_en
) {
2731 vxge_hw_vpath_mcast_enable(vdev
->vpaths
[i
].handle
);
2732 if (status
!= VXGE_HW_OK
)
2733 vxge_debug_init(VXGE_ERR
,
2734 "%s : Can not enable mcast for vpath "
2735 "id %d", dev
->name
, i
);
2739 vxge_hw_device_setpause_data(vdev
->devh
, 0,
2740 vdev
->config
.tx_pause_enable
,
2741 vdev
->config
.rx_pause_enable
);
2743 if (vdev
->vp_reset_timer
.function
== NULL
)
2744 vxge_os_timer(vdev
->vp_reset_timer
,
2745 vxge_poll_vp_reset
, vdev
, (HZ
/2));
2747 if (vdev
->vp_lockup_timer
.function
== NULL
)
2748 vxge_os_timer(vdev
->vp_lockup_timer
,
2749 vxge_poll_vp_lockup
, vdev
, (HZ
/2));
2751 set_bit(__VXGE_STATE_CARD_UP
, &vdev
->state
);
2755 if (vxge_hw_device_link_state_get(vdev
->devh
) == VXGE_HW_LINK_UP
) {
2756 netif_carrier_on(vdev
->ndev
);
2757 printk(KERN_NOTICE
"%s: Link Up\n", vdev
->ndev
->name
);
2758 vdev
->stats
.link_up
++;
2761 vxge_hw_device_intr_enable(vdev
->devh
);
2765 for (i
= 0; i
< vdev
->no_of_vpath
; i
++) {
2766 vxge_hw_vpath_enable(vdev
->vpaths
[i
].handle
);
2768 vxge_hw_vpath_rx_doorbell_init(vdev
->vpaths
[i
].handle
);
2771 vxge_start_all_tx_queue(vdev
);
2778 if (vdev
->config
.intr_type
!= MSI_X
)
2779 napi_disable(&vdev
->napi
);
2781 for (i
= 0; i
< vdev
->no_of_vpath
; i
++)
2782 napi_disable(&vdev
->vpaths
[i
].ring
.napi
);
2786 vxge_close_vpaths(vdev
, 0);
2788 vxge_debug_entryexit(VXGE_TRACE
,
2789 "%s: %s:%d Exiting...",
2790 dev
->name
, __func__
, __LINE__
);
2794 /* Loop throught the mac address list and delete all the entries */
2795 void vxge_free_mac_add_list(struct vxge_vpath
*vpath
)
2798 struct list_head
*entry
, *next
;
2799 if (list_empty(&vpath
->mac_addr_list
))
2802 list_for_each_safe(entry
, next
, &vpath
->mac_addr_list
) {
2804 kfree((struct vxge_mac_addrs
*)entry
);
2808 static void vxge_napi_del_all(struct vxgedev
*vdev
)
2811 if (vdev
->config
.intr_type
!= MSI_X
)
2812 netif_napi_del(&vdev
->napi
);
2814 for (i
= 0; i
< vdev
->no_of_vpath
; i
++)
2815 netif_napi_del(&vdev
->vpaths
[i
].ring
.napi
);
2820 int do_vxge_close(struct net_device
*dev
, int do_io
)
2822 enum vxge_hw_status status
;
2823 struct vxgedev
*vdev
;
2824 struct __vxge_hw_device
*hldev
;
2826 u64 val64
, vpath_vector
;
2827 vxge_debug_entryexit(VXGE_TRACE
, "%s: %s:%d",
2828 dev
->name
, __func__
, __LINE__
);
2830 vdev
= (struct vxgedev
*)netdev_priv(dev
);
2831 hldev
= (struct __vxge_hw_device
*) pci_get_drvdata(vdev
->pdev
);
2833 if (unlikely(!is_vxge_card_up(vdev
)))
2836 /* If vxge_handle_crit_err task is executing,
2837 * wait till it completes. */
2838 while (test_and_set_bit(__VXGE_STATE_RESET_CARD
, &vdev
->state
))
2841 clear_bit(__VXGE_STATE_CARD_UP
, &vdev
->state
);
2843 /* Put the vpath back in normal mode */
2844 vpath_vector
= vxge_mBIT(vdev
->vpaths
[0].device_id
);
2845 status
= vxge_hw_mgmt_reg_read(vdev
->devh
,
2846 vxge_hw_mgmt_reg_type_mrpcim
,
2849 struct vxge_hw_mrpcim_reg
,
2850 rts_mgr_cbasin_cfg
),
2853 if (status
== VXGE_HW_OK
) {
2854 val64
&= ~vpath_vector
;
2855 status
= vxge_hw_mgmt_reg_write(vdev
->devh
,
2856 vxge_hw_mgmt_reg_type_mrpcim
,
2859 struct vxge_hw_mrpcim_reg
,
2860 rts_mgr_cbasin_cfg
),
2864 /* Remove the function 0 from promiscous mode */
2865 vxge_hw_mgmt_reg_write(vdev
->devh
,
2866 vxge_hw_mgmt_reg_type_mrpcim
,
2868 (ulong
)offsetof(struct vxge_hw_mrpcim_reg
,
2869 rxmac_authorize_all_addr
),
2872 vxge_hw_mgmt_reg_write(vdev
->devh
,
2873 vxge_hw_mgmt_reg_type_mrpcim
,
2875 (ulong
)offsetof(struct vxge_hw_mrpcim_reg
,
2876 rxmac_authorize_all_vid
),
2881 del_timer_sync(&vdev
->vp_lockup_timer
);
2883 del_timer_sync(&vdev
->vp_reset_timer
);
2886 if (vdev
->config
.intr_type
!= MSI_X
)
2887 napi_disable(&vdev
->napi
);
2889 for (i
= 0; i
< vdev
->no_of_vpath
; i
++)
2890 napi_disable(&vdev
->vpaths
[i
].ring
.napi
);
2893 netif_carrier_off(vdev
->ndev
);
2894 printk(KERN_NOTICE
"%s: Link Down\n", vdev
->ndev
->name
);
2895 vxge_stop_all_tx_queue(vdev
);
2897 /* Note that at this point xmit() is stopped by upper layer */
2899 vxge_hw_device_intr_disable(vdev
->devh
);
2905 vxge_napi_del_all(vdev
);
2908 vxge_reset_all_vpaths(vdev
);
2910 vxge_close_vpaths(vdev
, 0);
2912 vxge_debug_entryexit(VXGE_TRACE
,
2913 "%s: %s:%d Exiting...", dev
->name
, __func__
, __LINE__
);
2915 clear_bit(__VXGE_STATE_RESET_CARD
, &vdev
->state
);
2922 * @dev: device pointer.
2924 * This is the stop entry point of the driver. It needs to undo exactly
2925 * whatever was done by the open entry point, thus it's usually referred to
2926 * as the close function.Among other things this function mainly stops the
2927 * Rx side of the NIC and frees all the Rx buffers in the Rx rings.
2928 * Return value: '0' on success and an appropriate (-)ve integer as
2929 * defined in errno.h file on failure.
2932 vxge_close(struct net_device
*dev
)
2934 do_vxge_close(dev
, 1);
2940 * @dev: net device pointer.
2941 * @new_mtu :the new MTU size for the device.
2943 * A driver entry point to change MTU size for the device. Before changing
2944 * the MTU the device must be stopped.
2946 static int vxge_change_mtu(struct net_device
*dev
, int new_mtu
)
2948 struct vxgedev
*vdev
= netdev_priv(dev
);
2950 vxge_debug_entryexit(vdev
->level_trace
,
2951 "%s:%d", __func__
, __LINE__
);
2952 if ((new_mtu
< VXGE_HW_MIN_MTU
) || (new_mtu
> VXGE_HW_MAX_MTU
)) {
2953 vxge_debug_init(vdev
->level_err
,
2954 "%s: mtu size is invalid", dev
->name
);
2958 /* check if device is down already */
2959 if (unlikely(!is_vxge_card_up(vdev
))) {
2960 /* just store new value, will use later on open() */
2962 vxge_debug_init(vdev
->level_err
,
2963 "%s", "device is down on MTU change");
2967 vxge_debug_init(vdev
->level_trace
,
2968 "trying to apply new MTU %d", new_mtu
);
2970 if (vxge_close(dev
))
2974 vdev
->mtu
= new_mtu
;
2979 vxge_debug_init(vdev
->level_trace
,
2980 "%s: MTU changed to %d", vdev
->ndev
->name
, new_mtu
);
2982 vxge_debug_entryexit(vdev
->level_trace
,
2983 "%s:%d Exiting...", __func__
, __LINE__
);
2990 * @dev: pointer to the device structure
2992 * Updates the device statistics structure. This function updates the device
2993 * statistics structure in the net_device structure and returns a pointer
2996 static struct net_device_stats
*
2997 vxge_get_stats(struct net_device
*dev
)
2999 struct vxgedev
*vdev
;
3000 struct net_device_stats
*net_stats
;
3003 vdev
= netdev_priv(dev
);
3005 net_stats
= &vdev
->stats
.net_stats
;
3007 memset(net_stats
, 0, sizeof(struct net_device_stats
));
3009 for (k
= 0; k
< vdev
->no_of_vpath
; k
++) {
3010 net_stats
->rx_packets
+= vdev
->vpaths
[k
].ring
.stats
.rx_frms
;
3011 net_stats
->rx_bytes
+= vdev
->vpaths
[k
].ring
.stats
.rx_bytes
;
3012 net_stats
->rx_errors
+= vdev
->vpaths
[k
].ring
.stats
.rx_errors
;
3013 net_stats
->multicast
+= vdev
->vpaths
[k
].ring
.stats
.rx_mcast
;
3014 net_stats
->rx_dropped
+=
3015 vdev
->vpaths
[k
].ring
.stats
.rx_dropped
;
3017 net_stats
->tx_packets
+= vdev
->vpaths
[k
].fifo
.stats
.tx_frms
;
3018 net_stats
->tx_bytes
+= vdev
->vpaths
[k
].fifo
.stats
.tx_bytes
;
3019 net_stats
->tx_errors
+= vdev
->vpaths
[k
].fifo
.stats
.tx_errors
;
3027 * @dev: Device pointer.
3028 * @ifr: An IOCTL specific structure, that can contain a pointer to
3029 * a proprietary structure used to pass information to the driver.
3030 * @cmd: This is used to distinguish between the different commands that
3031 * can be passed to the IOCTL functions.
3033 * Entry point for the Ioctl.
3035 static int vxge_ioctl(struct net_device
*dev
, struct ifreq
*rq
, int cmd
)
3042 * @dev: pointer to net device structure
3044 * Watchdog for transmit side.
3045 * This function is triggered if the Tx Queue is stopped
3046 * for a pre-defined amount of time when the Interface is still up.
3049 vxge_tx_watchdog(struct net_device
*dev
)
3051 struct vxgedev
*vdev
;
3053 vxge_debug_entryexit(VXGE_TRACE
, "%s:%d", __func__
, __LINE__
);
3055 vdev
= (struct vxgedev
*)netdev_priv(dev
);
3057 vdev
->cric_err_event
= VXGE_HW_EVENT_RESET_START
;
3060 vxge_debug_entryexit(VXGE_TRACE
,
3061 "%s:%d Exiting...", __func__
, __LINE__
);
3065 * vxge_vlan_rx_register
3066 * @dev: net device pointer.
3069 * Vlan group registration
3072 vxge_vlan_rx_register(struct net_device
*dev
, struct vlan_group
*grp
)
3074 struct vxgedev
*vdev
;
3075 struct vxge_vpath
*vpath
;
3078 enum vxge_hw_status status
;
3081 vxge_debug_entryexit(VXGE_TRACE
, "%s:%d", __func__
, __LINE__
);
3083 vdev
= (struct vxgedev
*)netdev_priv(dev
);
3085 vpath
= &vdev
->vpaths
[0];
3086 if ((NULL
== grp
) && (vpath
->is_open
)) {
3087 /* Get the first vlan */
3088 status
= vxge_hw_vpath_vid_get(vpath
->handle
, &vid
);
3090 while (status
== VXGE_HW_OK
) {
3092 /* Delete this vlan from the vid table */
3093 for (vp
= 0; vp
< vdev
->no_of_vpath
; vp
++) {
3094 vpath
= &vdev
->vpaths
[vp
];
3095 if (!vpath
->is_open
)
3098 vxge_hw_vpath_vid_delete(vpath
->handle
, vid
);
3101 /* Get the next vlan to be deleted */
3102 vpath
= &vdev
->vpaths
[0];
3103 status
= vxge_hw_vpath_vid_get(vpath
->handle
, &vid
);
3109 for (i
= 0; i
< vdev
->no_of_vpath
; i
++) {
3110 if (vdev
->vpaths
[i
].is_configured
)
3111 vdev
->vpaths
[i
].ring
.vlgrp
= grp
;
3114 vxge_debug_entryexit(VXGE_TRACE
,
3115 "%s:%d Exiting...", __func__
, __LINE__
);
3119 * vxge_vlan_rx_add_vid
3120 * @dev: net device pointer.
3123 * Add the vlan id to the devices vlan id table
3126 vxge_vlan_rx_add_vid(struct net_device
*dev
, unsigned short vid
)
3128 struct vxgedev
*vdev
;
3129 struct vxge_vpath
*vpath
;
3132 vdev
= (struct vxgedev
*)netdev_priv(dev
);
3134 /* Add these vlan to the vid table */
3135 for (vp_id
= 0; vp_id
< vdev
->no_of_vpath
; vp_id
++) {
3136 vpath
= &vdev
->vpaths
[vp_id
];
3137 if (!vpath
->is_open
)
3139 vxge_hw_vpath_vid_add(vpath
->handle
, vid
);
3144 * vxge_vlan_rx_add_vid
3145 * @dev: net device pointer.
3148 * Remove the vlan id from the device's vlan id table
3151 vxge_vlan_rx_kill_vid(struct net_device
*dev
, unsigned short vid
)
3153 struct vxgedev
*vdev
;
3154 struct vxge_vpath
*vpath
;
3157 vxge_debug_entryexit(VXGE_TRACE
, "%s:%d", __func__
, __LINE__
);
3159 vdev
= (struct vxgedev
*)netdev_priv(dev
);
3161 vlan_group_set_device(vdev
->vlgrp
, vid
, NULL
);
3163 /* Delete this vlan from the vid table */
3164 for (vp_id
= 0; vp_id
< vdev
->no_of_vpath
; vp_id
++) {
3165 vpath
= &vdev
->vpaths
[vp_id
];
3166 if (!vpath
->is_open
)
3168 vxge_hw_vpath_vid_delete(vpath
->handle
, vid
);
3170 vxge_debug_entryexit(VXGE_TRACE
,
3171 "%s:%d Exiting...", __func__
, __LINE__
);
3174 static const struct net_device_ops vxge_netdev_ops
= {
3175 .ndo_open
= vxge_open
,
3176 .ndo_stop
= vxge_close
,
3177 .ndo_get_stats
= vxge_get_stats
,
3178 .ndo_start_xmit
= vxge_xmit
,
3179 .ndo_validate_addr
= eth_validate_addr
,
3180 .ndo_set_multicast_list
= vxge_set_multicast
,
3182 .ndo_do_ioctl
= vxge_ioctl
,
3184 .ndo_set_mac_address
= vxge_set_mac_addr
,
3185 .ndo_change_mtu
= vxge_change_mtu
,
3186 .ndo_vlan_rx_register
= vxge_vlan_rx_register
,
3187 .ndo_vlan_rx_kill_vid
= vxge_vlan_rx_kill_vid
,
3188 .ndo_vlan_rx_add_vid
= vxge_vlan_rx_add_vid
,
3190 .ndo_tx_timeout
= vxge_tx_watchdog
,
3191 #ifdef CONFIG_NET_POLL_CONTROLLER
3192 .ndo_poll_controller
= vxge_netpoll
,
3196 int __devinit
vxge_device_register(struct __vxge_hw_device
*hldev
,
3197 struct vxge_config
*config
,
3198 int high_dma
, int no_of_vpath
,
3199 struct vxgedev
**vdev_out
)
3201 struct net_device
*ndev
;
3202 enum vxge_hw_status status
= VXGE_HW_OK
;
3203 struct vxgedev
*vdev
;
3204 int i
, ret
= 0, no_of_queue
= 1;
3208 if (config
->tx_steering_type
== TX_MULTIQ_STEERING
)
3209 no_of_queue
= no_of_vpath
;
3211 ndev
= alloc_etherdev_mq(sizeof(struct vxgedev
),
3215 vxge_hw_device_trace_level_get(hldev
),
3216 "%s : device allocation failed", __func__
);
3221 vxge_debug_entryexit(
3222 vxge_hw_device_trace_level_get(hldev
),
3223 "%s: %s:%d Entering...",
3224 ndev
->name
, __func__
, __LINE__
);
3226 vdev
= netdev_priv(ndev
);
3227 memset(vdev
, 0, sizeof(struct vxgedev
));
3231 vdev
->pdev
= hldev
->pdev
;
3232 memcpy(&vdev
->config
, config
, sizeof(struct vxge_config
));
3233 vdev
->rx_csum
= 1; /* Enable Rx CSUM by default. */
3235 SET_NETDEV_DEV(ndev
, &vdev
->pdev
->dev
);
3237 ndev
->features
|= NETIF_F_HW_VLAN_TX
| NETIF_F_HW_VLAN_RX
|
3238 NETIF_F_HW_VLAN_FILTER
;
3239 /* Driver entry points */
3240 ndev
->irq
= vdev
->pdev
->irq
;
3241 ndev
->base_addr
= (unsigned long) hldev
->bar0
;
3243 ndev
->netdev_ops
= &vxge_netdev_ops
;
3245 ndev
->watchdog_timeo
= VXGE_LL_WATCH_DOG_TIMEOUT
;
3247 initialize_ethtool_ops(ndev
);
3249 /* Allocate memory for vpath */
3250 vdev
->vpaths
= kzalloc((sizeof(struct vxge_vpath
)) *
3251 no_of_vpath
, GFP_KERNEL
);
3252 if (!vdev
->vpaths
) {
3253 vxge_debug_init(VXGE_ERR
,
3254 "%s: vpath memory allocation failed",
3260 ndev
->features
|= NETIF_F_SG
;
3262 ndev
->features
|= NETIF_F_HW_CSUM
;
3263 vxge_debug_init(vxge_hw_device_trace_level_get(hldev
),
3264 "%s : checksuming enabled", __func__
);
3267 ndev
->features
|= NETIF_F_HIGHDMA
;
3268 vxge_debug_init(vxge_hw_device_trace_level_get(hldev
),
3269 "%s : using High DMA", __func__
);
3272 ndev
->features
|= NETIF_F_TSO
| NETIF_F_TSO6
;
3274 if (vdev
->config
.gro_enable
)
3275 ndev
->features
|= NETIF_F_GRO
;
3277 if (vdev
->config
.tx_steering_type
== TX_MULTIQ_STEERING
)
3278 ndev
->real_num_tx_queues
= no_of_vpath
;
3281 ndev
->features
|= NETIF_F_LLTX
;
3284 for (i
= 0; i
< no_of_vpath
; i
++)
3285 spin_lock_init(&vdev
->vpaths
[i
].fifo
.tx_lock
);
3287 if (register_netdev(ndev
)) {
3288 vxge_debug_init(vxge_hw_device_trace_level_get(hldev
),
3289 "%s: %s : device registration failed!",
3290 ndev
->name
, __func__
);
3295 /* Set the factory defined MAC address initially */
3296 ndev
->addr_len
= ETH_ALEN
;
3298 /* Make Link state as off at this point, when the Link change
3299 * interrupt comes the state will be automatically changed to
3302 netif_carrier_off(ndev
);
3304 vxge_debug_init(vxge_hw_device_trace_level_get(hldev
),
3305 "%s: Ethernet device registered",
3310 /* Resetting the Device stats */
3311 status
= vxge_hw_mrpcim_stats_access(
3313 VXGE_HW_STATS_OP_CLEAR_ALL_STATS
,
3318 if (status
== VXGE_HW_ERR_PRIVILAGED_OPEARATION
)
3320 vxge_hw_device_trace_level_get(hldev
),
3321 "%s: device stats clear returns"
3322 "VXGE_HW_ERR_PRIVILAGED_OPEARATION", ndev
->name
);
3324 vxge_debug_entryexit(vxge_hw_device_trace_level_get(hldev
),
3325 "%s: %s:%d Exiting...",
3326 ndev
->name
, __func__
, __LINE__
);
3330 kfree(vdev
->vpaths
);
3338 * vxge_device_unregister
3340 * This function will unregister and free network device
3343 vxge_device_unregister(struct __vxge_hw_device
*hldev
)
3345 struct vxgedev
*vdev
;
3346 struct net_device
*dev
;
3348 #if ((VXGE_DEBUG_INIT & VXGE_DEBUG_MASK) || \
3349 (VXGE_DEBUG_ENTRYEXIT & VXGE_DEBUG_MASK))
3354 vdev
= netdev_priv(dev
);
3355 #if ((VXGE_DEBUG_INIT & VXGE_DEBUG_MASK) || \
3356 (VXGE_DEBUG_ENTRYEXIT & VXGE_DEBUG_MASK))
3357 level_trace
= vdev
->level_trace
;
3359 vxge_debug_entryexit(level_trace
,
3360 "%s: %s:%d", vdev
->ndev
->name
, __func__
, __LINE__
);
3362 memcpy(buf
, vdev
->ndev
->name
, IFNAMSIZ
);
3364 /* in 2.6 will call stop() if device is up */
3365 unregister_netdev(dev
);
3367 flush_scheduled_work();
3369 vxge_debug_init(level_trace
, "%s: ethernet device unregistered", buf
);
3370 vxge_debug_entryexit(level_trace
,
3371 "%s: %s:%d Exiting...", buf
, __func__
, __LINE__
);
3375 * vxge_callback_crit_err
3377 * This function is called by the alarm handler in interrupt context.
3378 * Driver must analyze it based on the event type.
3381 vxge_callback_crit_err(struct __vxge_hw_device
*hldev
,
3382 enum vxge_hw_event type
, u64 vp_id
)
3384 struct net_device
*dev
= hldev
->ndev
;
3385 struct vxgedev
*vdev
= (struct vxgedev
*)netdev_priv(dev
);
3388 vxge_debug_entryexit(vdev
->level_trace
,
3389 "%s: %s:%d", vdev
->ndev
->name
, __func__
, __LINE__
);
3391 /* Note: This event type should be used for device wide
3392 * indications only - Serious errors, Slot freeze and critical errors
3394 vdev
->cric_err_event
= type
;
3396 for (vpath_idx
= 0; vpath_idx
< vdev
->no_of_vpath
; vpath_idx
++)
3397 if (vdev
->vpaths
[vpath_idx
].device_id
== vp_id
)
3400 if (!test_bit(__VXGE_STATE_RESET_CARD
, &vdev
->state
)) {
3401 if (type
== VXGE_HW_EVENT_SLOT_FREEZE
) {
3402 vxge_debug_init(VXGE_ERR
,
3403 "%s: Slot is frozen", vdev
->ndev
->name
);
3404 } else if (type
== VXGE_HW_EVENT_SERR
) {
3405 vxge_debug_init(VXGE_ERR
,
3406 "%s: Encountered Serious Error",
3408 } else if (type
== VXGE_HW_EVENT_CRITICAL_ERR
)
3409 vxge_debug_init(VXGE_ERR
,
3410 "%s: Encountered Critical Error",
3414 if ((type
== VXGE_HW_EVENT_SERR
) ||
3415 (type
== VXGE_HW_EVENT_SLOT_FREEZE
)) {
3416 if (unlikely(vdev
->exec_mode
))
3417 clear_bit(__VXGE_STATE_CARD_UP
, &vdev
->state
);
3418 } else if (type
== VXGE_HW_EVENT_CRITICAL_ERR
) {
3419 vxge_hw_device_mask_all(hldev
);
3420 if (unlikely(vdev
->exec_mode
))
3421 clear_bit(__VXGE_STATE_CARD_UP
, &vdev
->state
);
3422 } else if ((type
== VXGE_HW_EVENT_FIFO_ERR
) ||
3423 (type
== VXGE_HW_EVENT_VPATH_ERR
)) {
3425 if (unlikely(vdev
->exec_mode
))
3426 clear_bit(__VXGE_STATE_CARD_UP
, &vdev
->state
);
3428 /* check if this vpath is already set for reset */
3429 if (!test_and_set_bit(vpath_idx
, &vdev
->vp_reset
)) {
3431 /* disable interrupts for this vpath */
3432 vxge_vpath_intr_disable(vdev
, vpath_idx
);
3434 /* stop the queue for this vpath */
3435 vxge_stop_tx_queue(&vdev
->vpaths
[vpath_idx
].
3441 vxge_debug_entryexit(vdev
->level_trace
,
3442 "%s: %s:%d Exiting...",
3443 vdev
->ndev
->name
, __func__
, __LINE__
);
3446 static void verify_bandwidth(void)
3448 int i
, band_width
, total
= 0, equal_priority
= 0;
3450 /* 1. If user enters 0 for some fifo, give equal priority to all */
3451 for (i
= 0; i
< VXGE_HW_MAX_VIRTUAL_PATHS
; i
++) {
3452 if (bw_percentage
[i
] == 0) {
3458 if (!equal_priority
) {
3459 /* 2. If sum exceeds 100, give equal priority to all */
3460 for (i
= 0; i
< VXGE_HW_MAX_VIRTUAL_PATHS
; i
++) {
3461 if (bw_percentage
[i
] == 0xFF)
3464 total
+= bw_percentage
[i
];
3465 if (total
> VXGE_HW_VPATH_BANDWIDTH_MAX
) {
3472 if (!equal_priority
) {
3473 /* Is all the bandwidth consumed? */
3474 if (total
< VXGE_HW_VPATH_BANDWIDTH_MAX
) {
3475 if (i
< VXGE_HW_MAX_VIRTUAL_PATHS
) {
3476 /* Split rest of bw equally among next VPs*/
3478 (VXGE_HW_VPATH_BANDWIDTH_MAX
- total
) /
3479 (VXGE_HW_MAX_VIRTUAL_PATHS
- i
);
3480 if (band_width
< 2) /* min of 2% */
3483 for (; i
< VXGE_HW_MAX_VIRTUAL_PATHS
;
3489 } else if (i
< VXGE_HW_MAX_VIRTUAL_PATHS
)
3493 if (equal_priority
) {
3494 vxge_debug_init(VXGE_ERR
,
3495 "%s: Assigning equal bandwidth to all the vpaths",
3497 bw_percentage
[0] = VXGE_HW_VPATH_BANDWIDTH_MAX
/
3498 VXGE_HW_MAX_VIRTUAL_PATHS
;
3499 for (i
= 1; i
< VXGE_HW_MAX_VIRTUAL_PATHS
; i
++)
3500 bw_percentage
[i
] = bw_percentage
[0];
3507 * Vpath configuration
3509 static int __devinit
vxge_config_vpaths(
3510 struct vxge_hw_device_config
*device_config
,
3511 u64 vpath_mask
, struct vxge_config
*config_param
)
3513 int i
, no_of_vpaths
= 0, default_no_vpath
= 0, temp
;
3514 u32 txdl_size
, txdl_per_memblock
;
3516 temp
= driver_config
->vpath_per_dev
;
3517 if ((driver_config
->vpath_per_dev
== VXGE_USE_DEFAULT
) &&
3518 (max_config_dev
== VXGE_MAX_CONFIG_DEV
)) {
3519 /* No more CPU. Return vpath number as zero.*/
3520 if (driver_config
->g_no_cpus
== -1)
3523 if (!driver_config
->g_no_cpus
)
3524 driver_config
->g_no_cpus
= num_online_cpus();
3526 driver_config
->vpath_per_dev
= driver_config
->g_no_cpus
>> 1;
3527 if (!driver_config
->vpath_per_dev
)
3528 driver_config
->vpath_per_dev
= 1;
3530 for (i
= 0; i
< VXGE_HW_MAX_VIRTUAL_PATHS
; i
++)
3531 if (!vxge_bVALn(vpath_mask
, i
, 1))
3535 if (default_no_vpath
< driver_config
->vpath_per_dev
)
3536 driver_config
->vpath_per_dev
= default_no_vpath
;
3538 driver_config
->g_no_cpus
= driver_config
->g_no_cpus
-
3539 (driver_config
->vpath_per_dev
* 2);
3540 if (driver_config
->g_no_cpus
<= 0)
3541 driver_config
->g_no_cpus
= -1;
3544 if (driver_config
->vpath_per_dev
== 1) {
3545 vxge_debug_ll_config(VXGE_TRACE
,
3546 "%s: Disable tx and rx steering, "
3547 "as single vpath is configured", VXGE_DRIVER_NAME
);
3548 config_param
->rth_steering
= NO_STEERING
;
3549 config_param
->tx_steering_type
= NO_STEERING
;
3550 device_config
->rth_en
= 0;
3553 /* configure bandwidth */
3554 for (i
= 0; i
< VXGE_HW_MAX_VIRTUAL_PATHS
; i
++)
3555 device_config
->vp_config
[i
].min_bandwidth
= bw_percentage
[i
];
3557 for (i
= 0; i
< VXGE_HW_MAX_VIRTUAL_PATHS
; i
++) {
3558 device_config
->vp_config
[i
].vp_id
= i
;
3559 device_config
->vp_config
[i
].mtu
= VXGE_HW_DEFAULT_MTU
;
3560 if (no_of_vpaths
< driver_config
->vpath_per_dev
) {
3561 if (!vxge_bVALn(vpath_mask
, i
, 1)) {
3562 vxge_debug_ll_config(VXGE_TRACE
,
3563 "%s: vpath: %d is not available",
3564 VXGE_DRIVER_NAME
, i
);
3567 vxge_debug_ll_config(VXGE_TRACE
,
3568 "%s: vpath: %d available",
3569 VXGE_DRIVER_NAME
, i
);
3573 vxge_debug_ll_config(VXGE_TRACE
,
3574 "%s: vpath: %d is not configured, "
3575 "max_config_vpath exceeded",
3576 VXGE_DRIVER_NAME
, i
);
3580 /* Configure Tx fifo's */
3581 device_config
->vp_config
[i
].fifo
.enable
=
3582 VXGE_HW_FIFO_ENABLE
;
3583 device_config
->vp_config
[i
].fifo
.max_frags
=
3585 device_config
->vp_config
[i
].fifo
.memblock_size
=
3586 VXGE_HW_MIN_FIFO_MEMBLOCK_SIZE
;
3588 txdl_size
= device_config
->vp_config
[i
].fifo
.max_frags
*
3589 sizeof(struct vxge_hw_fifo_txd
);
3590 txdl_per_memblock
= VXGE_HW_MIN_FIFO_MEMBLOCK_SIZE
/ txdl_size
;
3592 device_config
->vp_config
[i
].fifo
.fifo_blocks
=
3593 ((VXGE_DEF_FIFO_LENGTH
- 1) / txdl_per_memblock
) + 1;
3595 device_config
->vp_config
[i
].fifo
.intr
=
3596 VXGE_HW_FIFO_QUEUE_INTR_DISABLE
;
3598 /* Configure tti properties */
3599 device_config
->vp_config
[i
].tti
.intr_enable
=
3600 VXGE_HW_TIM_INTR_ENABLE
;
3602 device_config
->vp_config
[i
].tti
.btimer_val
=
3603 (VXGE_TTI_BTIMER_VAL
* 1000) / 272;
3605 device_config
->vp_config
[i
].tti
.timer_ac_en
=
3606 VXGE_HW_TIM_TIMER_AC_ENABLE
;
3608 /* For msi-x with napi (each vector
3609 has a handler of its own) -
3610 Set CI to OFF for all vpaths */
3611 device_config
->vp_config
[i
].tti
.timer_ci_en
=
3612 VXGE_HW_TIM_TIMER_CI_DISABLE
;
3614 device_config
->vp_config
[i
].tti
.timer_ri_en
=
3615 VXGE_HW_TIM_TIMER_RI_DISABLE
;
3617 device_config
->vp_config
[i
].tti
.util_sel
=
3618 VXGE_HW_TIM_UTIL_SEL_LEGACY_TX_NET_UTIL
;
3620 device_config
->vp_config
[i
].tti
.ltimer_val
=
3621 (VXGE_TTI_LTIMER_VAL
* 1000) / 272;
3623 device_config
->vp_config
[i
].tti
.rtimer_val
=
3624 (VXGE_TTI_RTIMER_VAL
* 1000) / 272;
3626 device_config
->vp_config
[i
].tti
.urange_a
= TTI_TX_URANGE_A
;
3627 device_config
->vp_config
[i
].tti
.urange_b
= TTI_TX_URANGE_B
;
3628 device_config
->vp_config
[i
].tti
.urange_c
= TTI_TX_URANGE_C
;
3629 device_config
->vp_config
[i
].tti
.uec_a
= TTI_TX_UFC_A
;
3630 device_config
->vp_config
[i
].tti
.uec_b
= TTI_TX_UFC_B
;
3631 device_config
->vp_config
[i
].tti
.uec_c
= TTI_TX_UFC_C
;
3632 device_config
->vp_config
[i
].tti
.uec_d
= TTI_TX_UFC_D
;
3634 /* Configure Rx rings */
3635 device_config
->vp_config
[i
].ring
.enable
=
3636 VXGE_HW_RING_ENABLE
;
3638 device_config
->vp_config
[i
].ring
.ring_blocks
=
3639 VXGE_HW_DEF_RING_BLOCKS
;
3640 device_config
->vp_config
[i
].ring
.buffer_mode
=
3641 VXGE_HW_RING_RXD_BUFFER_MODE_1
;
3642 device_config
->vp_config
[i
].ring
.rxds_limit
=
3643 VXGE_HW_DEF_RING_RXDS_LIMIT
;
3644 device_config
->vp_config
[i
].ring
.scatter_mode
=
3645 VXGE_HW_RING_SCATTER_MODE_A
;
3647 /* Configure rti properties */
3648 device_config
->vp_config
[i
].rti
.intr_enable
=
3649 VXGE_HW_TIM_INTR_ENABLE
;
3651 device_config
->vp_config
[i
].rti
.btimer_val
=
3652 (VXGE_RTI_BTIMER_VAL
* 1000)/272;
3654 device_config
->vp_config
[i
].rti
.timer_ac_en
=
3655 VXGE_HW_TIM_TIMER_AC_ENABLE
;
3657 device_config
->vp_config
[i
].rti
.timer_ci_en
=
3658 VXGE_HW_TIM_TIMER_CI_DISABLE
;
3660 device_config
->vp_config
[i
].rti
.timer_ri_en
=
3661 VXGE_HW_TIM_TIMER_RI_DISABLE
;
3663 device_config
->vp_config
[i
].rti
.util_sel
=
3664 VXGE_HW_TIM_UTIL_SEL_LEGACY_RX_NET_UTIL
;
3666 device_config
->vp_config
[i
].rti
.urange_a
=
3668 device_config
->vp_config
[i
].rti
.urange_b
=
3670 device_config
->vp_config
[i
].rti
.urange_c
=
3672 device_config
->vp_config
[i
].rti
.uec_a
= RTI_RX_UFC_A
;
3673 device_config
->vp_config
[i
].rti
.uec_b
= RTI_RX_UFC_B
;
3674 device_config
->vp_config
[i
].rti
.uec_c
= RTI_RX_UFC_C
;
3675 device_config
->vp_config
[i
].rti
.uec_d
= RTI_RX_UFC_D
;
3677 device_config
->vp_config
[i
].rti
.rtimer_val
=
3678 (VXGE_RTI_RTIMER_VAL
* 1000) / 272;
3680 device_config
->vp_config
[i
].rti
.ltimer_val
=
3681 (VXGE_RTI_LTIMER_VAL
* 1000) / 272;
3683 device_config
->vp_config
[i
].rpa_strip_vlan_tag
=
3687 driver_config
->vpath_per_dev
= temp
;
3688 return no_of_vpaths
;
3691 /* initialize device configuratrions */
3692 static void __devinit
vxge_device_config_init(
3693 struct vxge_hw_device_config
*device_config
,
3696 /* Used for CQRQ/SRQ. */
3697 device_config
->dma_blockpool_initial
=
3698 VXGE_HW_INITIAL_DMA_BLOCK_POOL_SIZE
;
3700 device_config
->dma_blockpool_max
=
3701 VXGE_HW_MAX_DMA_BLOCK_POOL_SIZE
;
3703 if (max_mac_vpath
> VXGE_MAX_MAC_ADDR_COUNT
)
3704 max_mac_vpath
= VXGE_MAX_MAC_ADDR_COUNT
;
3706 #ifndef CONFIG_PCI_MSI
3707 vxge_debug_init(VXGE_ERR
,
3708 "%s: This Kernel does not support "
3709 "MSI-X. Defaulting to INTA", VXGE_DRIVER_NAME
);
3713 /* Configure whether MSI-X or IRQL. */
3714 switch (*intr_type
) {
3716 device_config
->intr_mode
= VXGE_HW_INTR_MODE_IRQLINE
;
3720 device_config
->intr_mode
= VXGE_HW_INTR_MODE_MSIX
;
3723 /* Timer period between device poll */
3724 device_config
->device_poll_millis
= VXGE_TIMER_DELAY
;
3726 /* Configure mac based steering. */
3727 device_config
->rts_mac_en
= addr_learn_en
;
3729 /* Configure Vpaths */
3730 device_config
->rth_it_type
= VXGE_HW_RTH_IT_TYPE_MULTI_IT
;
3732 vxge_debug_ll_config(VXGE_TRACE
, "%s : Device Config Params ",
3734 vxge_debug_ll_config(VXGE_TRACE
, "dma_blockpool_initial : %d",
3735 device_config
->dma_blockpool_initial
);
3736 vxge_debug_ll_config(VXGE_TRACE
, "dma_blockpool_max : %d",
3737 device_config
->dma_blockpool_max
);
3738 vxge_debug_ll_config(VXGE_TRACE
, "intr_mode : %d",
3739 device_config
->intr_mode
);
3740 vxge_debug_ll_config(VXGE_TRACE
, "device_poll_millis : %d",
3741 device_config
->device_poll_millis
);
3742 vxge_debug_ll_config(VXGE_TRACE
, "rts_mac_en : %d",
3743 device_config
->rts_mac_en
);
3744 vxge_debug_ll_config(VXGE_TRACE
, "rth_en : %d",
3745 device_config
->rth_en
);
3746 vxge_debug_ll_config(VXGE_TRACE
, "rth_it_type : %d",
3747 device_config
->rth_it_type
);
3750 static void __devinit
vxge_print_parm(struct vxgedev
*vdev
, u64 vpath_mask
)
3754 vxge_debug_init(VXGE_TRACE
,
3755 "%s: %d Vpath(s) opened",
3756 vdev
->ndev
->name
, vdev
->no_of_vpath
);
3758 switch (vdev
->config
.intr_type
) {
3760 vxge_debug_init(VXGE_TRACE
,
3761 "%s: Interrupt type INTA", vdev
->ndev
->name
);
3765 vxge_debug_init(VXGE_TRACE
,
3766 "%s: Interrupt type MSI-X", vdev
->ndev
->name
);
3770 if (vdev
->config
.rth_steering
) {
3771 vxge_debug_init(VXGE_TRACE
,
3772 "%s: RTH steering enabled for TCP_IPV4",
3775 vxge_debug_init(VXGE_TRACE
,
3776 "%s: RTH steering disabled", vdev
->ndev
->name
);
3779 switch (vdev
->config
.tx_steering_type
) {
3781 vxge_debug_init(VXGE_TRACE
,
3782 "%s: Tx steering disabled", vdev
->ndev
->name
);
3784 case TX_PRIORITY_STEERING
:
3785 vxge_debug_init(VXGE_TRACE
,
3786 "%s: Unsupported tx steering option",
3788 vxge_debug_init(VXGE_TRACE
,
3789 "%s: Tx steering disabled", vdev
->ndev
->name
);
3790 vdev
->config
.tx_steering_type
= 0;
3792 case TX_VLAN_STEERING
:
3793 vxge_debug_init(VXGE_TRACE
,
3794 "%s: Unsupported tx steering option",
3796 vxge_debug_init(VXGE_TRACE
,
3797 "%s: Tx steering disabled", vdev
->ndev
->name
);
3798 vdev
->config
.tx_steering_type
= 0;
3800 case TX_MULTIQ_STEERING
:
3801 vxge_debug_init(VXGE_TRACE
,
3802 "%s: Tx multiqueue steering enabled",
3805 case TX_PORT_STEERING
:
3806 vxge_debug_init(VXGE_TRACE
,
3807 "%s: Tx port steering enabled",
3811 vxge_debug_init(VXGE_ERR
,
3812 "%s: Unsupported tx steering type",
3814 vxge_debug_init(VXGE_TRACE
,
3815 "%s: Tx steering disabled", vdev
->ndev
->name
);
3816 vdev
->config
.tx_steering_type
= 0;
3819 if (vdev
->config
.gro_enable
) {
3820 vxge_debug_init(VXGE_ERR
,
3821 "%s: Generic receive offload enabled",
3824 vxge_debug_init(VXGE_TRACE
,
3825 "%s: Generic receive offload disabled",
3828 if (vdev
->config
.addr_learn_en
)
3829 vxge_debug_init(VXGE_TRACE
,
3830 "%s: MAC Address learning enabled", vdev
->ndev
->name
);
3832 vxge_debug_init(VXGE_TRACE
,
3833 "%s: Rx doorbell mode enabled", vdev
->ndev
->name
);
3835 for (i
= 0; i
< VXGE_HW_MAX_VIRTUAL_PATHS
; i
++) {
3836 if (!vxge_bVALn(vpath_mask
, i
, 1))
3838 vxge_debug_ll_config(VXGE_TRACE
,
3839 "%s: MTU size - %d", vdev
->ndev
->name
,
3840 ((struct __vxge_hw_device
*)(vdev
->devh
))->
3841 config
.vp_config
[i
].mtu
);
3842 vxge_debug_init(VXGE_TRACE
,
3843 "%s: VLAN tag stripping %s", vdev
->ndev
->name
,
3844 ((struct __vxge_hw_device
*)(vdev
->devh
))->
3845 config
.vp_config
[i
].rpa_strip_vlan_tag
3846 ? "Enabled" : "Disabled");
3847 vxge_debug_init(VXGE_TRACE
,
3848 "%s: Ring blocks : %d", vdev
->ndev
->name
,
3849 ((struct __vxge_hw_device
*)(vdev
->devh
))->
3850 config
.vp_config
[i
].ring
.ring_blocks
);
3851 vxge_debug_init(VXGE_TRACE
,
3852 "%s: Fifo blocks : %d", vdev
->ndev
->name
,
3853 ((struct __vxge_hw_device
*)(vdev
->devh
))->
3854 config
.vp_config
[i
].fifo
.fifo_blocks
);
3855 vxge_debug_ll_config(VXGE_TRACE
,
3856 "%s: Max frags : %d", vdev
->ndev
->name
,
3857 ((struct __vxge_hw_device
*)(vdev
->devh
))->
3858 config
.vp_config
[i
].fifo
.max_frags
);
3865 * vxge_pm_suspend - vxge power management suspend entry point
3868 static int vxge_pm_suspend(struct pci_dev
*pdev
, pm_message_t state
)
3873 * vxge_pm_resume - vxge power management resume entry point
3876 static int vxge_pm_resume(struct pci_dev
*pdev
)
3884 * vxge_io_error_detected - called when PCI error is detected
3885 * @pdev: Pointer to PCI device
3886 * @state: The current pci connection state
3888 * This function is called after a PCI bus error affecting
3889 * this device has been detected.
3891 static pci_ers_result_t
vxge_io_error_detected(struct pci_dev
*pdev
,
3892 pci_channel_state_t state
)
3894 struct __vxge_hw_device
*hldev
=
3895 (struct __vxge_hw_device
*) pci_get_drvdata(pdev
);
3896 struct net_device
*netdev
= hldev
->ndev
;
3898 netif_device_detach(netdev
);
3900 if (state
== pci_channel_io_perm_failure
)
3901 return PCI_ERS_RESULT_DISCONNECT
;
3903 if (netif_running(netdev
)) {
3904 /* Bring down the card, while avoiding PCI I/O */
3905 do_vxge_close(netdev
, 0);
3908 pci_disable_device(pdev
);
3910 return PCI_ERS_RESULT_NEED_RESET
;
3914 * vxge_io_slot_reset - called after the pci bus has been reset.
3915 * @pdev: Pointer to PCI device
3917 * Restart the card from scratch, as if from a cold-boot.
3918 * At this point, the card has exprienced a hard reset,
3919 * followed by fixups by BIOS, and has its config space
3920 * set up identically to what it was at cold boot.
3922 static pci_ers_result_t
vxge_io_slot_reset(struct pci_dev
*pdev
)
3924 struct __vxge_hw_device
*hldev
=
3925 (struct __vxge_hw_device
*) pci_get_drvdata(pdev
);
3926 struct net_device
*netdev
= hldev
->ndev
;
3928 struct vxgedev
*vdev
= netdev_priv(netdev
);
3930 if (pci_enable_device(pdev
)) {
3931 printk(KERN_ERR
"%s: "
3932 "Cannot re-enable device after reset\n",
3934 return PCI_ERS_RESULT_DISCONNECT
;
3937 pci_set_master(pdev
);
3940 return PCI_ERS_RESULT_RECOVERED
;
3944 * vxge_io_resume - called when traffic can start flowing again.
3945 * @pdev: Pointer to PCI device
3947 * This callback is called when the error recovery driver tells
3948 * us that its OK to resume normal operation.
3950 static void vxge_io_resume(struct pci_dev
*pdev
)
3952 struct __vxge_hw_device
*hldev
=
3953 (struct __vxge_hw_device
*) pci_get_drvdata(pdev
);
3954 struct net_device
*netdev
= hldev
->ndev
;
3956 if (netif_running(netdev
)) {
3957 if (vxge_open(netdev
)) {
3958 printk(KERN_ERR
"%s: "
3959 "Can't bring device back up after reset\n",
3965 netif_device_attach(netdev
);
3970 * @pdev : structure containing the PCI related information of the device.
3971 * @pre: List of PCI devices supported by the driver listed in vxge_id_table.
3973 * This function is called when a new PCI device gets detected and initializes
3976 * returns 0 on success and negative on failure.
3979 static int __devinit
3980 vxge_probe(struct pci_dev
*pdev
, const struct pci_device_id
*pre
)
3982 struct __vxge_hw_device
*hldev
;
3983 enum vxge_hw_status status
;
3987 struct vxgedev
*vdev
;
3988 struct vxge_config ll_config
;
3989 struct vxge_hw_device_config
*device_config
= NULL
;
3990 struct vxge_hw_device_attr attr
;
3991 int i
, j
, no_of_vpath
= 0, max_vpath_supported
= 0;
3993 struct vxge_mac_addrs
*entry
;
3994 static int bus
= -1, device
= -1;
3997 vxge_debug_entryexit(VXGE_TRACE
, "%s:%d", __func__
, __LINE__
);
4000 if (bus
!= pdev
->bus
->number
)
4002 if (device
!= PCI_SLOT(pdev
->devfn
))
4005 bus
= pdev
->bus
->number
;
4006 device
= PCI_SLOT(pdev
->devfn
);
4009 if (driver_config
->config_dev_cnt
&&
4010 (driver_config
->config_dev_cnt
!=
4011 driver_config
->total_dev_cnt
))
4012 vxge_debug_init(VXGE_ERR
,
4013 "%s: Configured %d of %d devices",
4015 driver_config
->config_dev_cnt
,
4016 driver_config
->total_dev_cnt
);
4017 driver_config
->config_dev_cnt
= 0;
4018 driver_config
->total_dev_cnt
= 0;
4019 driver_config
->g_no_cpus
= 0;
4022 driver_config
->vpath_per_dev
= max_config_vpath
;
4024 driver_config
->total_dev_cnt
++;
4025 if (++driver_config
->config_dev_cnt
> max_config_dev
) {
4030 device_config
= kzalloc(sizeof(struct vxge_hw_device_config
),
4032 if (!device_config
) {
4034 vxge_debug_init(VXGE_ERR
,
4035 "device_config : malloc failed %s %d",
4036 __FILE__
, __LINE__
);
4040 memset(&ll_config
, 0, sizeof(struct vxge_config
));
4041 ll_config
.tx_steering_type
= TX_MULTIQ_STEERING
;
4042 ll_config
.intr_type
= MSI_X
;
4043 ll_config
.napi_weight
= NEW_NAPI_WEIGHT
;
4044 ll_config
.rth_steering
= RTH_STEERING
;
4046 /* get the default configuration parameters */
4047 vxge_hw_device_config_default_get(device_config
);
4049 /* initialize configuration parameters */
4050 vxge_device_config_init(device_config
, &ll_config
.intr_type
);
4052 ret
= pci_enable_device(pdev
);
4054 vxge_debug_init(VXGE_ERR
,
4055 "%s : can not enable PCI device", __func__
);
4059 if (!pci_set_dma_mask(pdev
, DMA_BIT_MASK(64))) {
4060 vxge_debug_ll_config(VXGE_TRACE
,
4061 "%s : using 64bit DMA", __func__
);
4065 if (pci_set_consistent_dma_mask(pdev
,
4066 DMA_BIT_MASK(64))) {
4067 vxge_debug_init(VXGE_ERR
,
4068 "%s : unable to obtain 64bit DMA for "
4069 "consistent allocations", __func__
);
4073 } else if (!pci_set_dma_mask(pdev
, DMA_BIT_MASK(32))) {
4074 vxge_debug_ll_config(VXGE_TRACE
,
4075 "%s : using 32bit DMA", __func__
);
4081 if (pci_request_regions(pdev
, VXGE_DRIVER_NAME
)) {
4082 vxge_debug_init(VXGE_ERR
,
4083 "%s : request regions failed", __func__
);
4088 pci_set_master(pdev
);
4090 attr
.bar0
= pci_ioremap_bar(pdev
, 0);
4092 vxge_debug_init(VXGE_ERR
,
4093 "%s : cannot remap io memory bar0", __func__
);
4097 vxge_debug_ll_config(VXGE_TRACE
,
4098 "pci ioremap bar0: %p:0x%llx",
4100 (unsigned long long)pci_resource_start(pdev
, 0));
4102 status
= vxge_hw_device_hw_info_get(attr
.bar0
,
4103 &ll_config
.device_hw_info
);
4104 if (status
!= VXGE_HW_OK
) {
4105 vxge_debug_init(VXGE_ERR
,
4106 "%s: Reading of hardware info failed."
4107 "Please try upgrading the firmware.", VXGE_DRIVER_NAME
);
4112 if (ll_config
.device_hw_info
.fw_version
.major
!=
4113 VXGE_DRIVER_FW_VERSION_MAJOR
) {
4114 vxge_debug_init(VXGE_ERR
,
4115 "%s: Incorrect firmware version."
4116 "Please upgrade the firmware to version 1.x.x",
4122 vpath_mask
= ll_config
.device_hw_info
.vpath_mask
;
4123 if (vpath_mask
== 0) {
4124 vxge_debug_ll_config(VXGE_TRACE
,
4125 "%s: No vpaths available in device", VXGE_DRIVER_NAME
);
4130 vxge_debug_ll_config(VXGE_TRACE
,
4131 "%s:%d Vpath mask = %llx", __func__
, __LINE__
,
4132 (unsigned long long)vpath_mask
);
4134 /* Check how many vpaths are available */
4135 for (i
= 0; i
< VXGE_HW_MAX_VIRTUAL_PATHS
; i
++) {
4136 if (!((vpath_mask
) & vxge_mBIT(i
)))
4138 max_vpath_supported
++;
4141 /* Enable SRIOV mode, if firmware has SRIOV support and if it is a PF */
4142 if ((VXGE_HW_FUNCTION_MODE_SRIOV
==
4143 ll_config
.device_hw_info
.function_mode
) &&
4144 (max_config_dev
> 1) && (pdev
->is_physfn
)) {
4145 ret
= pci_enable_sriov(pdev
, max_config_dev
- 1);
4147 vxge_debug_ll_config(VXGE_ERR
,
4148 "Failed to enable SRIOV: %d\n", ret
);
4152 * Configure vpaths and get driver configured number of vpaths
4153 * which is less than or equal to the maximum vpaths per function.
4155 no_of_vpath
= vxge_config_vpaths(device_config
, vpath_mask
, &ll_config
);
4157 vxge_debug_ll_config(VXGE_ERR
,
4158 "%s: No more vpaths to configure", VXGE_DRIVER_NAME
);
4163 /* Setting driver callbacks */
4164 attr
.uld_callbacks
.link_up
= vxge_callback_link_up
;
4165 attr
.uld_callbacks
.link_down
= vxge_callback_link_down
;
4166 attr
.uld_callbacks
.crit_err
= vxge_callback_crit_err
;
4168 status
= vxge_hw_device_initialize(&hldev
, &attr
, device_config
);
4169 if (status
!= VXGE_HW_OK
) {
4170 vxge_debug_init(VXGE_ERR
,
4171 "Failed to initialize device (%d)", status
);
4176 /* if FCS stripping is not disabled in MAC fail driver load */
4177 if (vxge_hw_vpath_strip_fcs_check(hldev
, vpath_mask
) != VXGE_HW_OK
) {
4178 vxge_debug_init(VXGE_ERR
,
4179 "%s: FCS stripping is not disabled in MAC"
4180 " failing driver load", VXGE_DRIVER_NAME
);
4185 vxge_hw_device_debug_set(hldev
, VXGE_ERR
, VXGE_COMPONENT_LL
);
4187 /* set private device info */
4188 pci_set_drvdata(pdev
, hldev
);
4190 ll_config
.gro_enable
= VXGE_GRO_ALWAYS_AGGREGATE
;
4191 ll_config
.fifo_indicate_max_pkts
= VXGE_FIFO_INDICATE_MAX_PKTS
;
4192 ll_config
.addr_learn_en
= addr_learn_en
;
4193 ll_config
.rth_algorithm
= RTH_ALG_JENKINS
;
4194 ll_config
.rth_hash_type_tcpipv4
= VXGE_HW_RING_HASH_TYPE_TCP_IPV4
;
4195 ll_config
.rth_hash_type_ipv4
= VXGE_HW_RING_HASH_TYPE_NONE
;
4196 ll_config
.rth_hash_type_tcpipv6
= VXGE_HW_RING_HASH_TYPE_NONE
;
4197 ll_config
.rth_hash_type_ipv6
= VXGE_HW_RING_HASH_TYPE_NONE
;
4198 ll_config
.rth_hash_type_tcpipv6ex
= VXGE_HW_RING_HASH_TYPE_NONE
;
4199 ll_config
.rth_hash_type_ipv6ex
= VXGE_HW_RING_HASH_TYPE_NONE
;
4200 ll_config
.rth_bkt_sz
= RTH_BUCKET_SIZE
;
4201 ll_config
.tx_pause_enable
= VXGE_PAUSE_CTRL_ENABLE
;
4202 ll_config
.rx_pause_enable
= VXGE_PAUSE_CTRL_ENABLE
;
4204 if (vxge_device_register(hldev
, &ll_config
, high_dma
, no_of_vpath
,
4210 vxge_hw_device_debug_set(hldev
, VXGE_TRACE
, VXGE_COMPONENT_LL
);
4211 VXGE_COPY_DEBUG_INFO_TO_LL(vdev
, vxge_hw_device_error_level_get(hldev
),
4212 vxge_hw_device_trace_level_get(hldev
));
4214 /* set private HW device info */
4215 hldev
->ndev
= vdev
->ndev
;
4216 vdev
->mtu
= VXGE_HW_DEFAULT_MTU
;
4217 vdev
->bar0
= attr
.bar0
;
4218 vdev
->max_vpath_supported
= max_vpath_supported
;
4219 vdev
->no_of_vpath
= no_of_vpath
;
4221 /* Virtual Path count */
4222 for (i
= 0, j
= 0; i
< VXGE_HW_MAX_VIRTUAL_PATHS
; i
++) {
4223 if (!vxge_bVALn(vpath_mask
, i
, 1))
4225 if (j
>= vdev
->no_of_vpath
)
4228 vdev
->vpaths
[j
].is_configured
= 1;
4229 vdev
->vpaths
[j
].device_id
= i
;
4230 vdev
->vpaths
[j
].fifo
.driver_id
= j
;
4231 vdev
->vpaths
[j
].ring
.driver_id
= j
;
4232 vdev
->vpaths
[j
].vdev
= vdev
;
4233 vdev
->vpaths
[j
].max_mac_addr_cnt
= max_mac_vpath
;
4234 memcpy((u8
*)vdev
->vpaths
[j
].macaddr
,
4235 (u8
*)ll_config
.device_hw_info
.mac_addrs
[i
],
4238 /* Initialize the mac address list header */
4239 INIT_LIST_HEAD(&vdev
->vpaths
[j
].mac_addr_list
);
4241 vdev
->vpaths
[j
].mac_addr_cnt
= 0;
4242 vdev
->vpaths
[j
].mcast_addr_cnt
= 0;
4245 vdev
->exec_mode
= VXGE_EXEC_MODE_DISABLE
;
4246 vdev
->max_config_port
= max_config_port
;
4248 vdev
->vlan_tag_strip
= vlan_tag_strip
;
4250 /* map the hashing selector table to the configured vpaths */
4251 for (i
= 0; i
< vdev
->no_of_vpath
; i
++)
4252 vdev
->vpath_selector
[i
] = vpath_selector
[i
];
4254 macaddr
= (u8
*)vdev
->vpaths
[0].macaddr
;
4256 ll_config
.device_hw_info
.serial_number
[VXGE_HW_INFO_LEN
- 1] = '\0';
4257 ll_config
.device_hw_info
.product_desc
[VXGE_HW_INFO_LEN
- 1] = '\0';
4258 ll_config
.device_hw_info
.part_number
[VXGE_HW_INFO_LEN
- 1] = '\0';
4260 vxge_debug_init(VXGE_TRACE
, "%s: SERIAL NUMBER: %s",
4261 vdev
->ndev
->name
, ll_config
.device_hw_info
.serial_number
);
4263 vxge_debug_init(VXGE_TRACE
, "%s: PART NUMBER: %s",
4264 vdev
->ndev
->name
, ll_config
.device_hw_info
.part_number
);
4266 vxge_debug_init(VXGE_TRACE
, "%s: Neterion %s Server Adapter",
4267 vdev
->ndev
->name
, ll_config
.device_hw_info
.product_desc
);
4269 vxge_debug_init(VXGE_TRACE
, "%s: MAC ADDR: %pM",
4270 vdev
->ndev
->name
, macaddr
);
4272 vxge_debug_init(VXGE_TRACE
, "%s: Link Width x%d",
4273 vdev
->ndev
->name
, vxge_hw_device_link_width_get(hldev
));
4275 vxge_debug_init(VXGE_TRACE
,
4276 "%s: Firmware version : %s Date : %s", vdev
->ndev
->name
,
4277 ll_config
.device_hw_info
.fw_version
.version
,
4278 ll_config
.device_hw_info
.fw_date
.date
);
4281 switch (ll_config
.device_hw_info
.function_mode
) {
4282 case VXGE_HW_FUNCTION_MODE_SINGLE_FUNCTION
:
4283 vxge_debug_init(VXGE_TRACE
,
4284 "%s: Single Function Mode Enabled", vdev
->ndev
->name
);
4286 case VXGE_HW_FUNCTION_MODE_MULTI_FUNCTION
:
4287 vxge_debug_init(VXGE_TRACE
,
4288 "%s: Multi Function Mode Enabled", vdev
->ndev
->name
);
4290 case VXGE_HW_FUNCTION_MODE_SRIOV
:
4291 vxge_debug_init(VXGE_TRACE
,
4292 "%s: Single Root IOV Mode Enabled", vdev
->ndev
->name
);
4294 case VXGE_HW_FUNCTION_MODE_MRIOV
:
4295 vxge_debug_init(VXGE_TRACE
,
4296 "%s: Multi Root IOV Mode Enabled", vdev
->ndev
->name
);
4301 vxge_print_parm(vdev
, vpath_mask
);
4303 /* Store the fw version for ethttool option */
4304 strcpy(vdev
->fw_version
, ll_config
.device_hw_info
.fw_version
.version
);
4305 memcpy(vdev
->ndev
->dev_addr
, (u8
*)vdev
->vpaths
[0].macaddr
, ETH_ALEN
);
4306 memcpy(vdev
->ndev
->perm_addr
, vdev
->ndev
->dev_addr
, ETH_ALEN
);
4308 /* Copy the station mac address to the list */
4309 for (i
= 0; i
< vdev
->no_of_vpath
; i
++) {
4310 entry
= (struct vxge_mac_addrs
*)
4311 kzalloc(sizeof(struct vxge_mac_addrs
),
4313 if (NULL
== entry
) {
4314 vxge_debug_init(VXGE_ERR
,
4315 "%s: mac_addr_list : memory allocation failed",
4320 macaddr
= (u8
*)&entry
->macaddr
;
4321 memcpy(macaddr
, vdev
->ndev
->dev_addr
, ETH_ALEN
);
4322 list_add(&entry
->item
, &vdev
->vpaths
[i
].mac_addr_list
);
4323 vdev
->vpaths
[i
].mac_addr_cnt
= 1;
4326 kfree(device_config
);
4329 * INTA is shared in multi-function mode. This is unlike the INTA
4330 * implementation in MR mode, where each VH has its own INTA message.
4331 * - INTA is masked (disabled) as long as at least one function sets
4332 * its TITAN_MASK_ALL_INT.ALARM bit.
4333 * - INTA is unmasked (enabled) when all enabled functions have cleared
4334 * their own TITAN_MASK_ALL_INT.ALARM bit.
4335 * The TITAN_MASK_ALL_INT ALARM & TRAFFIC bits are cleared on power up.
4336 * Though this driver leaves the top level interrupts unmasked while
4337 * leaving the required module interrupt bits masked on exit, there
4338 * could be a rougue driver around that does not follow this procedure
4339 * resulting in a failure to generate interrupts. The following code is
4340 * present to prevent such a failure.
4343 if (ll_config
.device_hw_info
.function_mode
==
4344 VXGE_HW_FUNCTION_MODE_MULTI_FUNCTION
)
4345 if (vdev
->config
.intr_type
== INTA
)
4346 vxge_hw_device_unmask_all(hldev
);
4348 vxge_debug_entryexit(VXGE_TRACE
, "%s: %s:%d Exiting...",
4349 vdev
->ndev
->name
, __func__
, __LINE__
);
4351 vxge_hw_device_debug_set(hldev
, VXGE_ERR
, VXGE_COMPONENT_LL
);
4352 VXGE_COPY_DEBUG_INFO_TO_LL(vdev
, vxge_hw_device_error_level_get(hldev
),
4353 vxge_hw_device_trace_level_get(hldev
));
4358 for (i
= 0; i
< vdev
->no_of_vpath
; i
++)
4359 vxge_free_mac_add_list(&vdev
->vpaths
[i
]);
4361 vxge_device_unregister(hldev
);
4363 pci_disable_sriov(pdev
);
4364 vxge_hw_device_terminate(hldev
);
4368 pci_release_regions(pdev
);
4370 pci_disable_device(pdev
);
4372 kfree(device_config
);
4373 driver_config
->config_dev_cnt
--;
4374 pci_set_drvdata(pdev
, NULL
);
4379 * vxge_rem_nic - Free the PCI device
4380 * @pdev: structure containing the PCI related information of the device.
4381 * Description: This function is called by the Pci subsystem to release a
4382 * PCI device and free up all resource held up by the device.
4384 static void __devexit
4385 vxge_remove(struct pci_dev
*pdev
)
4387 struct __vxge_hw_device
*hldev
;
4388 struct vxgedev
*vdev
= NULL
;
4389 struct net_device
*dev
;
4391 #if ((VXGE_DEBUG_INIT & VXGE_DEBUG_MASK) || \
4392 (VXGE_DEBUG_ENTRYEXIT & VXGE_DEBUG_MASK))
4396 hldev
= (struct __vxge_hw_device
*) pci_get_drvdata(pdev
);
4401 vdev
= netdev_priv(dev
);
4403 #if ((VXGE_DEBUG_INIT & VXGE_DEBUG_MASK) || \
4404 (VXGE_DEBUG_ENTRYEXIT & VXGE_DEBUG_MASK))
4405 level_trace
= vdev
->level_trace
;
4407 vxge_debug_entryexit(level_trace
,
4408 "%s:%d", __func__
, __LINE__
);
4410 vxge_debug_init(level_trace
,
4411 "%s : removing PCI device...", __func__
);
4412 vxge_device_unregister(hldev
);
4414 for (i
= 0; i
< vdev
->no_of_vpath
; i
++) {
4415 vxge_free_mac_add_list(&vdev
->vpaths
[i
]);
4416 vdev
->vpaths
[i
].mcast_addr_cnt
= 0;
4417 vdev
->vpaths
[i
].mac_addr_cnt
= 0;
4420 kfree(vdev
->vpaths
);
4422 iounmap(vdev
->bar0
);
4424 pci_disable_sriov(pdev
);
4426 /* we are safe to free it now */
4429 vxge_debug_init(level_trace
,
4430 "%s:%d Device unregistered", __func__
, __LINE__
);
4432 vxge_hw_device_terminate(hldev
);
4434 pci_disable_device(pdev
);
4435 pci_release_regions(pdev
);
4436 pci_set_drvdata(pdev
, NULL
);
4437 vxge_debug_entryexit(level_trace
,
4438 "%s:%d Exiting...", __func__
, __LINE__
);
4441 static struct pci_error_handlers vxge_err_handler
= {
4442 .error_detected
= vxge_io_error_detected
,
4443 .slot_reset
= vxge_io_slot_reset
,
4444 .resume
= vxge_io_resume
,
4447 static struct pci_driver vxge_driver
= {
4448 .name
= VXGE_DRIVER_NAME
,
4449 .id_table
= vxge_id_table
,
4450 .probe
= vxge_probe
,
4451 .remove
= __devexit_p(vxge_remove
),
4453 .suspend
= vxge_pm_suspend
,
4454 .resume
= vxge_pm_resume
,
4456 .err_handler
= &vxge_err_handler
,
4464 snprintf(version
, 32, "%s", DRV_VERSION
);
4466 printk(KERN_CRIT
"%s: Copyright(c) 2002-2009 Neterion Inc\n",
4468 printk(KERN_CRIT
"%s: Driver version: %s\n",
4469 VXGE_DRIVER_NAME
, version
);
4473 driver_config
= kzalloc(sizeof(struct vxge_drv_config
), GFP_KERNEL
);
4477 ret
= pci_register_driver(&vxge_driver
);
4479 if (driver_config
->config_dev_cnt
&&
4480 (driver_config
->config_dev_cnt
!= driver_config
->total_dev_cnt
))
4481 vxge_debug_init(VXGE_ERR
,
4482 "%s: Configured %d of %d devices",
4483 VXGE_DRIVER_NAME
, driver_config
->config_dev_cnt
,
4484 driver_config
->total_dev_cnt
);
4487 kfree(driver_config
);
4495 pci_unregister_driver(&vxge_driver
);
4496 kfree(driver_config
);
4498 module_init(vxge_starter
);
4499 module_exit(vxge_closer
);