1 /******************************************************************************
2 * This software may be used and distributed according to the terms of
3 * the GNU General Public License (GPL), incorporated herein by reference.
4 * Drivers based on or derived from this code fall under the GPL and must
5 * retain the authorship, copyright and license notice. This file is not
6 * a complete program and may only be used when the entire operating
7 * system is licensed under the GPL.
8 * See the file COPYING in this distribution for more information.
10 * vxge-main.c: Driver for Neterion Inc's X3100 Series 10GbE PCIe I/O
11 * Virtualized Server Adapter.
12 * Copyright(c) 2002-2009 Neterion Inc.
14 * The module loadable parameters that are supported by the driver and a brief
15 * explanation of all the variables:
17 * Strip VLAN Tag enable/disable. Instructs the device to remove
18 * the VLAN tag from all received tagged frames that are not
19 * replicated at the internal L2 switch.
20 * 0 - Do not strip the VLAN tag.
21 * 1 - Strip the VLAN tag.
24 * Enable learning the mac address of the guest OS interface in
25 * a virtualization environment.
30 * Maximum number of port to be supported.
34 * This configures the maximum no of VPATH configures for each
36 * MIN - 1 and MAX - 17
39 * This configures maximum no of Device function to be enabled.
40 * MIN - 1 and MAX - 17
42 ******************************************************************************/
44 #include <linux/if_vlan.h>
45 #include <linux/pci.h>
46 #include <linux/tcp.h>
48 #include <linux/netdevice.h>
49 #include <linux/etherdevice.h>
50 #include "vxge-main.h"
53 MODULE_LICENSE("Dual BSD/GPL");
54 MODULE_DESCRIPTION("Neterion's X3100 Series 10GbE PCIe I/O"
55 "Virtualized Server Adapter");
57 static struct pci_device_id vxge_id_table
[] __devinitdata
= {
58 {PCI_VENDOR_ID_S2IO
, PCI_DEVICE_ID_TITAN_WIN
, PCI_ANY_ID
,
60 {PCI_VENDOR_ID_S2IO
, PCI_DEVICE_ID_TITAN_UNI
, PCI_ANY_ID
,
65 MODULE_DEVICE_TABLE(pci
, vxge_id_table
);
67 VXGE_MODULE_PARAM_INT(vlan_tag_strip
, VXGE_HW_VPATH_RPA_STRIP_VLAN_TAG_ENABLE
);
68 VXGE_MODULE_PARAM_INT(addr_learn_en
, VXGE_HW_MAC_ADDR_LEARN_DEFAULT
);
69 VXGE_MODULE_PARAM_INT(max_config_port
, VXGE_MAX_CONFIG_PORT
);
70 VXGE_MODULE_PARAM_INT(max_config_vpath
, VXGE_USE_DEFAULT
);
71 VXGE_MODULE_PARAM_INT(max_mac_vpath
, VXGE_MAX_MAC_ADDR_COUNT
);
72 VXGE_MODULE_PARAM_INT(max_config_dev
, VXGE_MAX_CONFIG_DEV
);
74 static u16 vpath_selector
[VXGE_HW_MAX_VIRTUAL_PATHS
] =
75 {0, 1, 3, 3, 7, 7, 7, 7, 15, 15, 15, 15, 15, 15, 15, 15, 31};
76 static unsigned int bw_percentage
[VXGE_HW_MAX_VIRTUAL_PATHS
] =
77 {[0 ...(VXGE_HW_MAX_VIRTUAL_PATHS
- 1)] = 0xFF};
78 module_param_array(bw_percentage
, uint
, NULL
, 0);
80 static struct vxge_drv_config
*driver_config
;
82 static inline int is_vxge_card_up(struct vxgedev
*vdev
)
84 return test_bit(__VXGE_STATE_CARD_UP
, &vdev
->state
);
87 static inline void VXGE_COMPLETE_VPATH_TX(struct vxge_fifo
*fifo
)
89 unsigned long flags
= 0;
90 struct sk_buff
**skb_ptr
= NULL
;
91 struct sk_buff
**temp
;
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
);
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
, 0);
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 dev
->last_rx
= jiffies
;
593 vxge_debug_entryexit(VXGE_TRACE
,
602 * If an interrupt was raised to indicate DMA complete of the Tx packet,
603 * this function is called. It identifies the last TxD whose buffer was
604 * freed and frees all skbs whose data have already DMA'ed into the NICs
608 vxge_xmit_compl(struct __vxge_hw_fifo
*fifo_hw
, void *dtr
,
609 enum vxge_hw_fifo_tcode t_code
, void *userdata
,
610 struct sk_buff
***skb_ptr
, int nr_skb
, int *more
)
612 struct vxge_fifo
*fifo
= (struct vxge_fifo
*)userdata
;
613 struct sk_buff
*skb
, **done_skb
= *skb_ptr
;
616 vxge_debug_entryexit(VXGE_TRACE
,
617 "%s:%d Entered....", __func__
, __LINE__
);
623 struct vxge_tx_priv
*txd_priv
=
624 vxge_hw_fifo_txdl_private_get(dtr
);
627 frg_cnt
= skb_shinfo(skb
)->nr_frags
;
628 frag
= &skb_shinfo(skb
)->frags
[0];
630 vxge_debug_tx(VXGE_TRACE
,
631 "%s: %s:%d fifo_hw = %p dtr = %p "
632 "tcode = 0x%x", fifo
->ndev
->name
, __func__
,
633 __LINE__
, fifo_hw
, dtr
, t_code
);
634 /* check skb validity */
636 vxge_debug_tx(VXGE_TRACE
,
637 "%s: %s:%d skb = %p itxd_priv = %p frg_cnt = %d",
638 fifo
->ndev
->name
, __func__
, __LINE__
,
639 skb
, txd_priv
, frg_cnt
);
640 if (unlikely(t_code
)) {
641 fifo
->stats
.tx_errors
++;
642 vxge_debug_tx(VXGE_ERR
,
643 "%s: tx: dtr %p completed due to "
644 "error t_code %01x", fifo
->ndev
->name
,
646 vxge_hw_fifo_handle_tcode(fifo_hw
, dtr
, t_code
);
649 /* for unfragmented skb */
650 pci_unmap_single(fifo
->pdev
, txd_priv
->dma_buffers
[i
++],
651 skb_headlen(skb
), PCI_DMA_TODEVICE
);
653 for (j
= 0; j
< frg_cnt
; j
++) {
654 pci_unmap_page(fifo
->pdev
,
655 txd_priv
->dma_buffers
[i
++],
656 frag
->size
, PCI_DMA_TODEVICE
);
660 vxge_hw_fifo_txdl_free(fifo_hw
, dtr
);
662 /* Updating the statistics block */
663 fifo
->stats
.tx_frms
++;
664 fifo
->stats
.tx_bytes
+= skb
->len
;
674 if (pkt_cnt
> fifo
->indicate_max_pkts
)
677 } while (vxge_hw_fifo_txdl_next_completed(fifo_hw
,
678 &dtr
, &t_code
) == VXGE_HW_OK
);
681 vxge_wake_tx_queue(fifo
, skb
);
683 vxge_debug_entryexit(VXGE_TRACE
,
684 "%s: %s:%d Exiting...",
685 fifo
->ndev
->name
, __func__
, __LINE__
);
689 /* select a vpath to transmit the packet */
690 static u32
vxge_get_vpath_no(struct vxgedev
*vdev
, struct sk_buff
*skb
,
693 u16 queue_len
, counter
= 0;
694 if (skb
->protocol
== htons(ETH_P_IP
)) {
700 if ((ip
->frag_off
& htons(IP_OFFSET
|IP_MF
)) == 0) {
701 th
= (struct tcphdr
*)(((unsigned char *)ip
) +
704 queue_len
= vdev
->no_of_vpath
;
705 counter
= (ntohs(th
->source
) +
707 vdev
->vpath_selector
[queue_len
- 1];
708 if (counter
>= queue_len
)
709 counter
= queue_len
- 1;
711 if (ip
->protocol
== IPPROTO_UDP
) {
721 static enum vxge_hw_status
vxge_search_mac_addr_in_list(
722 struct vxge_vpath
*vpath
, u64 del_mac
)
724 struct list_head
*entry
, *next
;
725 list_for_each_safe(entry
, next
, &vpath
->mac_addr_list
) {
726 if (((struct vxge_mac_addrs
*)entry
)->macaddr
== del_mac
)
732 static int vxge_learn_mac(struct vxgedev
*vdev
, u8
*mac_header
)
734 struct macInfo mac_info
;
735 u8
*mac_address
= NULL
;
736 u64 mac_addr
= 0, vpath_vector
= 0;
738 enum vxge_hw_status status
= VXGE_HW_OK
;
739 struct vxge_vpath
*vpath
= NULL
;
740 struct __vxge_hw_device
*hldev
;
742 hldev
= (struct __vxge_hw_device
*) pci_get_drvdata(vdev
->pdev
);
744 mac_address
= (u8
*)&mac_addr
;
745 memcpy(mac_address
, mac_header
, ETH_ALEN
);
747 /* Is this mac address already in the list? */
748 for (vpath_idx
= 0; vpath_idx
< vdev
->no_of_vpath
; vpath_idx
++) {
749 vpath
= &vdev
->vpaths
[vpath_idx
];
750 if (vxge_search_mac_addr_in_list(vpath
, mac_addr
))
754 memset(&mac_info
, 0, sizeof(struct macInfo
));
755 memcpy(mac_info
.macaddr
, mac_header
, ETH_ALEN
);
757 /* Any vpath has room to add mac address to its da table? */
758 for (vpath_idx
= 0; vpath_idx
< vdev
->no_of_vpath
; vpath_idx
++) {
759 vpath
= &vdev
->vpaths
[vpath_idx
];
760 if (vpath
->mac_addr_cnt
< vpath
->max_mac_addr_cnt
) {
761 /* Add this mac address to this vpath */
762 mac_info
.vpath_no
= vpath_idx
;
763 mac_info
.state
= VXGE_LL_MAC_ADDR_IN_DA_TABLE
;
764 status
= vxge_add_mac_addr(vdev
, &mac_info
);
765 if (status
!= VXGE_HW_OK
)
771 mac_info
.state
= VXGE_LL_MAC_ADDR_IN_LIST
;
773 mac_info
.vpath_no
= vpath_idx
;
774 /* Is the first vpath already selected as catch-basin ? */
775 vpath
= &vdev
->vpaths
[vpath_idx
];
776 if (vpath
->mac_addr_cnt
> vpath
->max_mac_addr_cnt
) {
777 /* Add this mac address to this vpath */
778 if (FALSE
== vxge_mac_list_add(vpath
, &mac_info
))
783 /* Select first vpath as catch-basin */
784 vpath_vector
= vxge_mBIT(vpath
->device_id
);
785 status
= vxge_hw_mgmt_reg_write(vpath
->vdev
->devh
,
786 vxge_hw_mgmt_reg_type_mrpcim
,
789 struct vxge_hw_mrpcim_reg
,
792 if (status
!= VXGE_HW_OK
) {
793 vxge_debug_tx(VXGE_ERR
,
794 "%s: Unable to set the vpath-%d in catch-basin mode",
795 VXGE_DRIVER_NAME
, vpath
->device_id
);
799 if (FALSE
== vxge_mac_list_add(vpath
, &mac_info
))
807 * @skb : the socket buffer containing the Tx data.
808 * @dev : device pointer.
810 * This function is the Tx entry point of the driver. Neterion NIC supports
811 * certain protocol assist features on Tx side, namely CSO, S/G, LSO.
812 * NOTE: when device cant queue the pkt, just the trans_start variable will
816 vxge_xmit(struct sk_buff
*skb
, struct net_device
*dev
)
818 struct vxge_fifo
*fifo
= NULL
;
821 struct vxgedev
*vdev
= NULL
;
822 enum vxge_hw_status status
;
823 int frg_cnt
, first_frg_len
;
825 int i
= 0, j
= 0, avail
;
827 struct vxge_tx_priv
*txdl_priv
= NULL
;
828 struct __vxge_hw_fifo
*fifo_hw
;
830 unsigned long flags
= 0;
832 int do_spin_tx_lock
= 1;
834 vxge_debug_entryexit(VXGE_TRACE
, "%s: %s:%d",
835 dev
->name
, __func__
, __LINE__
);
837 /* A buffer with no data will be dropped */
838 if (unlikely(skb
->len
<= 0)) {
839 vxge_debug_tx(VXGE_ERR
,
840 "%s: Buffer has no data..", dev
->name
);
845 vdev
= (struct vxgedev
*)netdev_priv(dev
);
847 if (unlikely(!is_vxge_card_up(vdev
))) {
848 vxge_debug_tx(VXGE_ERR
,
849 "%s: vdev not initialized", dev
->name
);
854 if (vdev
->config
.addr_learn_en
) {
855 vpath_no
= vxge_learn_mac(vdev
, skb
->data
+ ETH_ALEN
);
856 if (vpath_no
== -EPERM
) {
857 vxge_debug_tx(VXGE_ERR
,
858 "%s: Failed to store the mac address",
865 if (vdev
->config
.tx_steering_type
== TX_MULTIQ_STEERING
)
866 vpath_no
= skb_get_queue_mapping(skb
);
867 else if (vdev
->config
.tx_steering_type
== TX_PORT_STEERING
)
868 vpath_no
= vxge_get_vpath_no(vdev
, skb
, &do_spin_tx_lock
);
870 vxge_debug_tx(VXGE_TRACE
, "%s: vpath_no= %d", dev
->name
, vpath_no
);
872 if (vpath_no
>= vdev
->no_of_vpath
)
875 fifo
= &vdev
->vpaths
[vpath_no
].fifo
;
876 fifo_hw
= fifo
->handle
;
879 spin_lock_irqsave(&fifo
->tx_lock
, flags
);
881 if (unlikely(!spin_trylock_irqsave(&fifo
->tx_lock
, flags
)))
882 return NETDEV_TX_LOCKED
;
885 if (vdev
->config
.tx_steering_type
== TX_MULTIQ_STEERING
) {
886 if (netif_subqueue_stopped(dev
, skb
)) {
887 spin_unlock_irqrestore(&fifo
->tx_lock
, flags
);
888 return NETDEV_TX_BUSY
;
890 } else if (unlikely(fifo
->queue_state
== VPATH_QUEUE_STOP
)) {
891 if (netif_queue_stopped(dev
)) {
892 spin_unlock_irqrestore(&fifo
->tx_lock
, flags
);
893 return NETDEV_TX_BUSY
;
896 avail
= vxge_hw_fifo_free_txdl_count_get(fifo_hw
);
898 vxge_debug_tx(VXGE_ERR
,
899 "%s: No free TXDs available", dev
->name
);
900 fifo
->stats
.txd_not_free
++;
901 vxge_stop_tx_queue(fifo
);
905 /* Last TXD? Stop tx queue to avoid dropping packets. TX
906 * completion will resume the queue.
909 vxge_stop_tx_queue(fifo
);
911 status
= vxge_hw_fifo_txdl_reserve(fifo_hw
, &dtr
, &dtr_priv
);
912 if (unlikely(status
!= VXGE_HW_OK
)) {
913 vxge_debug_tx(VXGE_ERR
,
914 "%s: Out of descriptors .", dev
->name
);
915 fifo
->stats
.txd_out_of_desc
++;
916 vxge_stop_tx_queue(fifo
);
920 vxge_debug_tx(VXGE_TRACE
,
921 "%s: %s:%d fifo_hw = %p dtr = %p dtr_priv = %p",
922 dev
->name
, __func__
, __LINE__
,
923 fifo_hw
, dtr
, dtr_priv
);
925 if (vdev
->vlgrp
&& vlan_tx_tag_present(skb
)) {
926 u16 vlan_tag
= vlan_tx_tag_get(skb
);
927 vxge_hw_fifo_txdl_vlan_set(dtr
, vlan_tag
);
930 first_frg_len
= skb_headlen(skb
);
932 dma_pointer
= pci_map_single(fifo
->pdev
, skb
->data
, first_frg_len
,
935 if (unlikely(pci_dma_mapping_error(fifo
->pdev
, dma_pointer
))) {
936 vxge_hw_fifo_txdl_free(fifo_hw
, dtr
);
937 vxge_stop_tx_queue(fifo
);
938 fifo
->stats
.pci_map_fail
++;
942 txdl_priv
= vxge_hw_fifo_txdl_private_get(dtr
);
943 txdl_priv
->skb
= skb
;
944 txdl_priv
->dma_buffers
[j
] = dma_pointer
;
946 frg_cnt
= skb_shinfo(skb
)->nr_frags
;
947 vxge_debug_tx(VXGE_TRACE
,
948 "%s: %s:%d skb = %p txdl_priv = %p "
949 "frag_cnt = %d dma_pointer = 0x%llx", dev
->name
,
950 __func__
, __LINE__
, skb
, txdl_priv
,
951 frg_cnt
, (unsigned long long)dma_pointer
);
953 vxge_hw_fifo_txdl_buffer_set(fifo_hw
, dtr
, j
++, dma_pointer
,
956 frag
= &skb_shinfo(skb
)->frags
[0];
957 for (i
= 0; i
< frg_cnt
; i
++) {
958 /* ignore 0 length fragment */
963 (u64
)pci_map_page(fifo
->pdev
, frag
->page
,
964 frag
->page_offset
, frag
->size
,
967 if (unlikely(pci_dma_mapping_error(fifo
->pdev
, dma_pointer
)))
969 vxge_debug_tx(VXGE_TRACE
,
970 "%s: %s:%d frag = %d dma_pointer = 0x%llx",
971 dev
->name
, __func__
, __LINE__
, i
,
972 (unsigned long long)dma_pointer
);
974 txdl_priv
->dma_buffers
[j
] = dma_pointer
;
975 vxge_hw_fifo_txdl_buffer_set(fifo_hw
, dtr
, j
++, dma_pointer
,
980 offload_type
= vxge_offload_type(skb
);
982 if (offload_type
& (SKB_GSO_TCPV4
| SKB_GSO_TCPV6
)) {
984 int mss
= vxge_tcp_mss(skb
);
986 vxge_debug_tx(VXGE_TRACE
,
987 "%s: %s:%d mss = %d",
988 dev
->name
, __func__
, __LINE__
, mss
);
989 vxge_hw_fifo_txdl_mss_set(dtr
, mss
);
991 vxge_assert(skb
->len
<=
992 dev
->mtu
+ VXGE_HW_MAC_HEADER_MAX_SIZE
);
998 if (skb
->ip_summed
== CHECKSUM_PARTIAL
)
999 vxge_hw_fifo_txdl_cksum_set_bits(dtr
,
1000 VXGE_HW_FIFO_TXD_TX_CKO_IPV4_EN
|
1001 VXGE_HW_FIFO_TXD_TX_CKO_TCP_EN
|
1002 VXGE_HW_FIFO_TXD_TX_CKO_UDP_EN
);
1004 vxge_hw_fifo_txdl_post(fifo_hw
, dtr
);
1006 dev
->trans_start
= jiffies
; /* NETIF_F_LLTX driver :( */
1008 spin_unlock_irqrestore(&fifo
->tx_lock
, flags
);
1010 VXGE_COMPLETE_VPATH_TX(fifo
);
1011 vxge_debug_entryexit(VXGE_TRACE
, "%s: %s:%d Exiting...",
1012 dev
->name
, __func__
, __LINE__
);
1013 return NETDEV_TX_OK
;
1016 vxge_debug_tx(VXGE_TRACE
, "%s: pci_map_page failed", dev
->name
);
1020 frag
= &skb_shinfo(skb
)->frags
[0];
1022 pci_unmap_single(fifo
->pdev
, txdl_priv
->dma_buffers
[j
++],
1023 skb_headlen(skb
), PCI_DMA_TODEVICE
);
1025 for (; j
< i
; j
++) {
1026 pci_unmap_page(fifo
->pdev
, txdl_priv
->dma_buffers
[j
],
1027 frag
->size
, PCI_DMA_TODEVICE
);
1031 vxge_hw_fifo_txdl_free(fifo_hw
, dtr
);
1034 spin_unlock_irqrestore(&fifo
->tx_lock
, flags
);
1035 VXGE_COMPLETE_VPATH_TX(fifo
);
1037 return NETDEV_TX_OK
;
1043 * Function will be called by hw function to abort all outstanding receive
1047 vxge_rx_term(void *dtrh
, enum vxge_hw_rxd_state state
, void *userdata
)
1049 struct vxge_ring
*ring
= (struct vxge_ring
*)userdata
;
1050 struct vxge_rx_priv
*rx_priv
=
1051 vxge_hw_ring_rxd_private_get(dtrh
);
1053 vxge_debug_entryexit(VXGE_TRACE
, "%s: %s:%d",
1054 ring
->ndev
->name
, __func__
, __LINE__
);
1055 if (state
!= VXGE_HW_RXD_STATE_POSTED
)
1058 pci_unmap_single(ring
->pdev
, rx_priv
->data_dma
,
1059 rx_priv
->data_size
, PCI_DMA_FROMDEVICE
);
1061 dev_kfree_skb(rx_priv
->skb
);
1062 rx_priv
->skb_data
= NULL
;
1064 vxge_debug_entryexit(VXGE_TRACE
,
1065 "%s: %s:%d Exiting...",
1066 ring
->ndev
->name
, __func__
, __LINE__
);
1072 * Function will be called to abort all outstanding tx descriptors
1075 vxge_tx_term(void *dtrh
, enum vxge_hw_txdl_state state
, void *userdata
)
1077 struct vxge_fifo
*fifo
= (struct vxge_fifo
*)userdata
;
1079 int i
= 0, j
, frg_cnt
;
1080 struct vxge_tx_priv
*txd_priv
= vxge_hw_fifo_txdl_private_get(dtrh
);
1081 struct sk_buff
*skb
= txd_priv
->skb
;
1083 vxge_debug_entryexit(VXGE_TRACE
, "%s:%d", __func__
, __LINE__
);
1085 if (state
!= VXGE_HW_TXDL_STATE_POSTED
)
1088 /* check skb validity */
1090 frg_cnt
= skb_shinfo(skb
)->nr_frags
;
1091 frag
= &skb_shinfo(skb
)->frags
[0];
1093 /* for unfragmented skb */
1094 pci_unmap_single(fifo
->pdev
, txd_priv
->dma_buffers
[i
++],
1095 skb_headlen(skb
), PCI_DMA_TODEVICE
);
1097 for (j
= 0; j
< frg_cnt
; j
++) {
1098 pci_unmap_page(fifo
->pdev
, txd_priv
->dma_buffers
[i
++],
1099 frag
->size
, PCI_DMA_TODEVICE
);
1105 vxge_debug_entryexit(VXGE_TRACE
,
1106 "%s:%d Exiting...", __func__
, __LINE__
);
1110 * vxge_set_multicast
1111 * @dev: pointer to the device structure
1113 * Entry point for multicast address enable/disable
1114 * This function is a driver entry point which gets called by the kernel
1115 * whenever multicast addresses must be enabled/disabled. This also gets
1116 * called to set/reset promiscuous mode. Depending on the deivce flag, we
1117 * determine, if multicast address must be enabled or if promiscuous mode
1118 * is to be disabled etc.
1120 static void vxge_set_multicast(struct net_device
*dev
)
1122 struct dev_mc_list
*mclist
;
1123 struct vxgedev
*vdev
;
1124 int i
, mcast_cnt
= 0;
1125 struct __vxge_hw_device
*hldev
;
1126 enum vxge_hw_status status
= VXGE_HW_OK
;
1127 struct macInfo mac_info
;
1129 struct vxge_mac_addrs
*mac_entry
;
1130 struct list_head
*list_head
;
1131 struct list_head
*entry
, *next
;
1132 u8
*mac_address
= NULL
;
1134 vxge_debug_entryexit(VXGE_TRACE
,
1135 "%s:%d", __func__
, __LINE__
);
1137 vdev
= (struct vxgedev
*)netdev_priv(dev
);
1138 hldev
= (struct __vxge_hw_device
*)vdev
->devh
;
1140 if (unlikely(!is_vxge_card_up(vdev
)))
1143 if ((dev
->flags
& IFF_ALLMULTI
) && (!vdev
->all_multi_flg
)) {
1144 for (i
= 0; i
< vdev
->no_of_vpath
; i
++) {
1145 vxge_assert(vdev
->vpaths
[i
].is_open
);
1146 status
= vxge_hw_vpath_mcast_enable(
1147 vdev
->vpaths
[i
].handle
);
1148 vdev
->all_multi_flg
= 1;
1150 } else if ((dev
->flags
& IFF_ALLMULTI
) && (vdev
->all_multi_flg
)) {
1151 for (i
= 0; i
< vdev
->no_of_vpath
; i
++) {
1152 vxge_assert(vdev
->vpaths
[i
].is_open
);
1153 status
= vxge_hw_vpath_mcast_disable(
1154 vdev
->vpaths
[i
].handle
);
1155 vdev
->all_multi_flg
= 1;
1159 if (status
!= VXGE_HW_OK
)
1160 vxge_debug_init(VXGE_ERR
,
1161 "failed to %s multicast, status %d",
1162 dev
->flags
& IFF_ALLMULTI
?
1163 "enable" : "disable", status
);
1165 if (!vdev
->config
.addr_learn_en
) {
1166 if (dev
->flags
& IFF_PROMISC
) {
1167 for (i
= 0; i
< vdev
->no_of_vpath
; i
++) {
1168 vxge_assert(vdev
->vpaths
[i
].is_open
);
1169 status
= vxge_hw_vpath_promisc_enable(
1170 vdev
->vpaths
[i
].handle
);
1173 for (i
= 0; i
< vdev
->no_of_vpath
; i
++) {
1174 vxge_assert(vdev
->vpaths
[i
].is_open
);
1175 status
= vxge_hw_vpath_promisc_disable(
1176 vdev
->vpaths
[i
].handle
);
1181 memset(&mac_info
, 0, sizeof(struct macInfo
));
1182 /* Update individual M_CAST address list */
1183 if ((!vdev
->all_multi_flg
) && dev
->mc_count
) {
1185 mcast_cnt
= vdev
->vpaths
[0].mcast_addr_cnt
;
1186 list_head
= &vdev
->vpaths
[0].mac_addr_list
;
1187 if ((dev
->mc_count
+
1188 (vdev
->vpaths
[0].mac_addr_cnt
- mcast_cnt
)) >
1189 vdev
->vpaths
[0].max_mac_addr_cnt
)
1190 goto _set_all_mcast
;
1192 /* Delete previous MC's */
1193 for (i
= 0; i
< mcast_cnt
; i
++) {
1194 if (!list_empty(list_head
))
1195 mac_entry
= (struct vxge_mac_addrs
*)
1196 list_first_entry(list_head
,
1197 struct vxge_mac_addrs
,
1200 list_for_each_safe(entry
, next
, list_head
) {
1202 mac_entry
= (struct vxge_mac_addrs
*) entry
;
1203 /* Copy the mac address to delete */
1204 mac_address
= (u8
*)&mac_entry
->macaddr
;
1205 memcpy(mac_info
.macaddr
, mac_address
, ETH_ALEN
);
1207 /* Is this a multicast address */
1208 if (0x01 & mac_info
.macaddr
[0]) {
1209 for (vpath_idx
= 0; vpath_idx
<
1212 mac_info
.vpath_no
= vpath_idx
;
1213 status
= vxge_del_mac_addr(
1222 for (i
= 0, mclist
= dev
->mc_list
; i
< dev
->mc_count
;
1223 i
++, mclist
= mclist
->next
) {
1225 memcpy(mac_info
.macaddr
, mclist
->dmi_addr
, ETH_ALEN
);
1226 for (vpath_idx
= 0; vpath_idx
< vdev
->no_of_vpath
;
1228 mac_info
.vpath_no
= vpath_idx
;
1229 mac_info
.state
= VXGE_LL_MAC_ADDR_IN_DA_TABLE
;
1230 status
= vxge_add_mac_addr(vdev
, &mac_info
);
1231 if (status
!= VXGE_HW_OK
) {
1232 vxge_debug_init(VXGE_ERR
,
1233 "%s:%d Setting individual"
1234 "multicast address failed",
1235 __func__
, __LINE__
);
1236 goto _set_all_mcast
;
1243 mcast_cnt
= vdev
->vpaths
[0].mcast_addr_cnt
;
1244 /* Delete previous MC's */
1245 for (i
= 0; i
< mcast_cnt
; i
++) {
1247 list_for_each_safe(entry
, next
, list_head
) {
1249 mac_entry
= (struct vxge_mac_addrs
*) entry
;
1250 /* Copy the mac address to delete */
1251 mac_address
= (u8
*)&mac_entry
->macaddr
;
1252 memcpy(mac_info
.macaddr
, mac_address
, ETH_ALEN
);
1254 /* Is this a multicast address */
1255 if (0x01 & mac_info
.macaddr
[0])
1259 for (vpath_idx
= 0; vpath_idx
< vdev
->no_of_vpath
;
1261 mac_info
.vpath_no
= vpath_idx
;
1262 status
= vxge_del_mac_addr(vdev
, &mac_info
);
1266 /* Enable all multicast */
1267 for (i
= 0; i
< vdev
->no_of_vpath
; i
++) {
1268 vxge_assert(vdev
->vpaths
[i
].is_open
);
1269 status
= vxge_hw_vpath_mcast_enable(
1270 vdev
->vpaths
[i
].handle
);
1271 if (status
!= VXGE_HW_OK
) {
1272 vxge_debug_init(VXGE_ERR
,
1273 "%s:%d Enabling all multicasts failed",
1274 __func__
, __LINE__
);
1276 vdev
->all_multi_flg
= 1;
1278 dev
->flags
|= IFF_ALLMULTI
;
1281 vxge_debug_entryexit(VXGE_TRACE
,
1282 "%s:%d Exiting...", __func__
, __LINE__
);
1287 * @dev: pointer to the device structure
1289 * Update entry "0" (default MAC addr)
1291 static int vxge_set_mac_addr(struct net_device
*dev
, void *p
)
1293 struct sockaddr
*addr
= p
;
1294 struct vxgedev
*vdev
;
1295 struct __vxge_hw_device
*hldev
;
1296 enum vxge_hw_status status
= VXGE_HW_OK
;
1297 struct macInfo mac_info_new
, mac_info_old
;
1300 vxge_debug_entryexit(VXGE_TRACE
, "%s:%d", __func__
, __LINE__
);
1302 vdev
= (struct vxgedev
*)netdev_priv(dev
);
1305 if (!is_valid_ether_addr(addr
->sa_data
))
1308 memset(&mac_info_new
, 0, sizeof(struct macInfo
));
1309 memset(&mac_info_old
, 0, sizeof(struct macInfo
));
1311 vxge_debug_entryexit(VXGE_TRACE
, "%s:%d Exiting...",
1312 __func__
, __LINE__
);
1314 /* Get the old address */
1315 memcpy(mac_info_old
.macaddr
, dev
->dev_addr
, dev
->addr_len
);
1317 /* Copy the new address */
1318 memcpy(mac_info_new
.macaddr
, addr
->sa_data
, dev
->addr_len
);
1320 /* First delete the old mac address from all the vpaths
1321 as we can't specify the index while adding new mac address */
1322 for (vpath_idx
= 0; vpath_idx
< vdev
->no_of_vpath
; vpath_idx
++) {
1323 struct vxge_vpath
*vpath
= &vdev
->vpaths
[vpath_idx
];
1324 if (!vpath
->is_open
) {
1325 /* This can happen when this interface is added/removed
1326 to the bonding interface. Delete this station address
1327 from the linked list */
1328 vxge_mac_list_del(vpath
, &mac_info_old
);
1330 /* Add this new address to the linked list
1331 for later restoring */
1332 vxge_mac_list_add(vpath
, &mac_info_new
);
1336 /* Delete the station address */
1337 mac_info_old
.vpath_no
= vpath_idx
;
1338 status
= vxge_del_mac_addr(vdev
, &mac_info_old
);
1341 if (unlikely(!is_vxge_card_up(vdev
))) {
1342 memcpy(dev
->dev_addr
, addr
->sa_data
, dev
->addr_len
);
1346 /* Set this mac address to all the vpaths */
1347 for (vpath_idx
= 0; vpath_idx
< vdev
->no_of_vpath
; vpath_idx
++) {
1348 mac_info_new
.vpath_no
= vpath_idx
;
1349 mac_info_new
.state
= VXGE_LL_MAC_ADDR_IN_DA_TABLE
;
1350 status
= vxge_add_mac_addr(vdev
, &mac_info_new
);
1351 if (status
!= VXGE_HW_OK
)
1355 memcpy(dev
->dev_addr
, addr
->sa_data
, dev
->addr_len
);
1361 * vxge_vpath_intr_enable
1362 * @vdev: pointer to vdev
1363 * @vp_id: vpath for which to enable the interrupts
1365 * Enables the interrupts for the vpath
1367 void vxge_vpath_intr_enable(struct vxgedev
*vdev
, int vp_id
)
1369 struct vxge_vpath
*vpath
= &vdev
->vpaths
[vp_id
];
1370 int msix_id
, alarm_msix_id
;
1371 int tim_msix_id
[4] = {[0 ...3] = 0};
1373 vxge_hw_vpath_intr_enable(vpath
->handle
);
1375 if (vdev
->config
.intr_type
== INTA
)
1376 vxge_hw_vpath_inta_unmask_tx_rx(vpath
->handle
);
1378 msix_id
= vp_id
* VXGE_HW_VPATH_MSIX_ACTIVE
;
1380 VXGE_HW_VPATH_MSIX_ACTIVE
* vdev
->no_of_vpath
- 2;
1382 tim_msix_id
[0] = msix_id
;
1383 tim_msix_id
[1] = msix_id
+ 1;
1384 vxge_hw_vpath_msix_set(vpath
->handle
, tim_msix_id
,
1387 vxge_hw_vpath_msix_unmask(vpath
->handle
, msix_id
);
1388 vxge_hw_vpath_msix_unmask(vpath
->handle
, msix_id
+ 1);
1390 /* enable the alarm vector */
1391 vxge_hw_vpath_msix_unmask(vpath
->handle
, alarm_msix_id
);
1396 * vxge_vpath_intr_disable
1397 * @vdev: pointer to vdev
1398 * @vp_id: vpath for which to disable the interrupts
1400 * Disables the interrupts for the vpath
1402 void vxge_vpath_intr_disable(struct vxgedev
*vdev
, int vp_id
)
1404 struct vxge_vpath
*vpath
= &vdev
->vpaths
[vp_id
];
1407 vxge_hw_vpath_intr_disable(vpath
->handle
);
1409 if (vdev
->config
.intr_type
== INTA
)
1410 vxge_hw_vpath_inta_mask_tx_rx(vpath
->handle
);
1412 msix_id
= vp_id
* VXGE_HW_VPATH_MSIX_ACTIVE
;
1413 vxge_hw_vpath_msix_mask(vpath
->handle
, msix_id
);
1414 vxge_hw_vpath_msix_mask(vpath
->handle
, msix_id
+ 1);
1416 /* disable the alarm vector */
1417 msix_id
= VXGE_HW_VPATH_MSIX_ACTIVE
* vdev
->no_of_vpath
- 2;
1418 vxge_hw_vpath_msix_mask(vpath
->handle
, msix_id
);
1424 * @vdev: pointer to vdev
1425 * @vp_id: vpath to reset
1429 static int vxge_reset_vpath(struct vxgedev
*vdev
, int vp_id
)
1431 enum vxge_hw_status status
= VXGE_HW_OK
;
1434 /* check if device is down already */
1435 if (unlikely(!is_vxge_card_up(vdev
)))
1438 /* is device reset already scheduled */
1439 if (test_bit(__VXGE_STATE_RESET_CARD
, &vdev
->state
))
1442 if (vdev
->vpaths
[vp_id
].handle
) {
1443 if (vxge_hw_vpath_reset(vdev
->vpaths
[vp_id
].handle
)
1445 if (is_vxge_card_up(vdev
) &&
1446 vxge_hw_vpath_recover_from_reset(
1447 vdev
->vpaths
[vp_id
].handle
)
1449 vxge_debug_init(VXGE_ERR
,
1450 "vxge_hw_vpath_recover_from_reset"
1451 "failed for vpath:%d", vp_id
);
1455 vxge_debug_init(VXGE_ERR
,
1456 "vxge_hw_vpath_reset failed for"
1461 return VXGE_HW_FAIL
;
1463 vxge_restore_vpath_mac_addr(&vdev
->vpaths
[vp_id
]);
1464 vxge_restore_vpath_vid_table(&vdev
->vpaths
[vp_id
]);
1466 /* Enable all broadcast */
1467 vxge_hw_vpath_bcast_enable(vdev
->vpaths
[vp_id
].handle
);
1469 /* Enable the interrupts */
1470 vxge_vpath_intr_enable(vdev
, vp_id
);
1474 /* Enable the flow of traffic through the vpath */
1475 vxge_hw_vpath_enable(vdev
->vpaths
[vp_id
].handle
);
1478 vxge_hw_vpath_rx_doorbell_init(vdev
->vpaths
[vp_id
].handle
);
1479 vdev
->vpaths
[vp_id
].ring
.last_status
= VXGE_HW_OK
;
1481 /* Vpath reset done */
1482 clear_bit(vp_id
, &vdev
->vp_reset
);
1484 /* Start the vpath queue */
1485 vxge_wake_tx_queue(&vdev
->vpaths
[vp_id
].fifo
, NULL
);
1490 static int do_vxge_reset(struct vxgedev
*vdev
, int event
)
1492 enum vxge_hw_status status
;
1493 int ret
= 0, vp_id
, i
;
1495 vxge_debug_entryexit(VXGE_TRACE
, "%s:%d", __func__
, __LINE__
);
1497 if ((event
== VXGE_LL_FULL_RESET
) || (event
== VXGE_LL_START_RESET
)) {
1498 /* check if device is down already */
1499 if (unlikely(!is_vxge_card_up(vdev
)))
1502 /* is reset already scheduled */
1503 if (test_and_set_bit(__VXGE_STATE_RESET_CARD
, &vdev
->state
))
1507 if (event
== VXGE_LL_FULL_RESET
) {
1508 /* wait for all the vpath reset to complete */
1509 for (vp_id
= 0; vp_id
< vdev
->no_of_vpath
; vp_id
++) {
1510 while (test_bit(vp_id
, &vdev
->vp_reset
))
1514 /* if execution mode is set to debug, don't reset the adapter */
1515 if (unlikely(vdev
->exec_mode
)) {
1516 vxge_debug_init(VXGE_ERR
,
1517 "%s: execution mode is debug, returning..",
1519 clear_bit(__VXGE_STATE_CARD_UP
, &vdev
->state
);
1520 vxge_stop_all_tx_queue(vdev
);
1525 if (event
== VXGE_LL_FULL_RESET
) {
1526 vxge_hw_device_intr_disable(vdev
->devh
);
1528 switch (vdev
->cric_err_event
) {
1529 case VXGE_HW_EVENT_UNKNOWN
:
1530 vxge_stop_all_tx_queue(vdev
);
1531 vxge_debug_init(VXGE_ERR
,
1532 "fatal: %s: Disabling device due to"
1537 case VXGE_HW_EVENT_RESET_START
:
1539 case VXGE_HW_EVENT_RESET_COMPLETE
:
1540 case VXGE_HW_EVENT_LINK_DOWN
:
1541 case VXGE_HW_EVENT_LINK_UP
:
1542 case VXGE_HW_EVENT_ALARM_CLEARED
:
1543 case VXGE_HW_EVENT_ECCERR
:
1544 case VXGE_HW_EVENT_MRPCIM_ECCERR
:
1547 case VXGE_HW_EVENT_FIFO_ERR
:
1548 case VXGE_HW_EVENT_VPATH_ERR
:
1550 case VXGE_HW_EVENT_CRITICAL_ERR
:
1551 vxge_stop_all_tx_queue(vdev
);
1552 vxge_debug_init(VXGE_ERR
,
1553 "fatal: %s: Disabling device due to"
1556 /* SOP or device reset required */
1557 /* This event is not currently used */
1560 case VXGE_HW_EVENT_SERR
:
1561 vxge_stop_all_tx_queue(vdev
);
1562 vxge_debug_init(VXGE_ERR
,
1563 "fatal: %s: Disabling device due to"
1568 case VXGE_HW_EVENT_SRPCIM_SERR
:
1569 case VXGE_HW_EVENT_MRPCIM_SERR
:
1572 case VXGE_HW_EVENT_SLOT_FREEZE
:
1573 vxge_stop_all_tx_queue(vdev
);
1574 vxge_debug_init(VXGE_ERR
,
1575 "fatal: %s: Disabling device due to"
1586 if ((event
== VXGE_LL_FULL_RESET
) || (event
== VXGE_LL_START_RESET
))
1587 vxge_stop_all_tx_queue(vdev
);
1589 if (event
== VXGE_LL_FULL_RESET
) {
1590 status
= vxge_reset_all_vpaths(vdev
);
1591 if (status
!= VXGE_HW_OK
) {
1592 vxge_debug_init(VXGE_ERR
,
1593 "fatal: %s: can not reset vpaths",
1600 if (event
== VXGE_LL_COMPL_RESET
) {
1601 for (i
= 0; i
< vdev
->no_of_vpath
; i
++)
1602 if (vdev
->vpaths
[i
].handle
) {
1603 if (vxge_hw_vpath_recover_from_reset(
1604 vdev
->vpaths
[i
].handle
)
1606 vxge_debug_init(VXGE_ERR
,
1607 "vxge_hw_vpath_recover_"
1608 "from_reset failed for vpath: "
1614 vxge_debug_init(VXGE_ERR
,
1615 "vxge_hw_vpath_reset failed for "
1622 if ((event
== VXGE_LL_FULL_RESET
) || (event
== VXGE_LL_COMPL_RESET
)) {
1623 /* Reprogram the DA table with populated mac addresses */
1624 for (vp_id
= 0; vp_id
< vdev
->no_of_vpath
; vp_id
++) {
1625 vxge_restore_vpath_mac_addr(&vdev
->vpaths
[vp_id
]);
1626 vxge_restore_vpath_vid_table(&vdev
->vpaths
[vp_id
]);
1629 /* enable vpath interrupts */
1630 for (i
= 0; i
< vdev
->no_of_vpath
; i
++)
1631 vxge_vpath_intr_enable(vdev
, i
);
1633 vxge_hw_device_intr_enable(vdev
->devh
);
1637 /* Indicate card up */
1638 set_bit(__VXGE_STATE_CARD_UP
, &vdev
->state
);
1640 /* Get the traffic to flow through the vpaths */
1641 for (i
= 0; i
< vdev
->no_of_vpath
; i
++) {
1642 vxge_hw_vpath_enable(vdev
->vpaths
[i
].handle
);
1644 vxge_hw_vpath_rx_doorbell_init(vdev
->vpaths
[i
].handle
);
1647 vxge_wake_all_tx_queue(vdev
);
1651 vxge_debug_entryexit(VXGE_TRACE
,
1652 "%s:%d Exiting...", __func__
, __LINE__
);
1654 /* Indicate reset done */
1655 if ((event
== VXGE_LL_FULL_RESET
) || (event
== VXGE_LL_COMPL_RESET
))
1656 clear_bit(__VXGE_STATE_RESET_CARD
, &vdev
->state
);
1662 * @vdev: pointer to ll device
1664 * driver may reset the chip on events of serr, eccerr, etc
1666 int vxge_reset(struct vxgedev
*vdev
)
1668 do_vxge_reset(vdev
, VXGE_LL_FULL_RESET
);
1673 * vxge_poll - Receive handler when Receive Polling is used.
1674 * @dev: pointer to the device structure.
1675 * @budget: Number of packets budgeted to be processed in this iteration.
1677 * This function comes into picture only if Receive side is being handled
1678 * through polling (called NAPI in linux). It mostly does what the normal
1679 * Rx interrupt handler does in terms of descriptor and packet processing
1680 * but not in an interrupt context. Also it will process a specified number
1681 * of packets at most in one iteration. This value is passed down by the
1682 * kernel as the function argument 'budget'.
1684 static int vxge_poll_msix(struct napi_struct
*napi
, int budget
)
1686 struct vxge_ring
*ring
=
1687 container_of(napi
, struct vxge_ring
, napi
);
1688 int budget_org
= budget
;
1689 ring
->budget
= budget
;
1691 vxge_hw_vpath_poll_rx(ring
->handle
);
1693 if (ring
->pkts_processed
< budget_org
) {
1694 napi_complete(napi
);
1695 /* Re enable the Rx interrupts for the vpath */
1696 vxge_hw_channel_msix_unmask(
1697 (struct __vxge_hw_channel
*)ring
->handle
,
1698 ring
->rx_vector_no
);
1701 return ring
->pkts_processed
;
1704 static int vxge_poll_inta(struct napi_struct
*napi
, int budget
)
1706 struct vxgedev
*vdev
= container_of(napi
, struct vxgedev
, napi
);
1707 int pkts_processed
= 0;
1709 int budget_org
= budget
;
1710 struct vxge_ring
*ring
;
1712 struct __vxge_hw_device
*hldev
= (struct __vxge_hw_device
*)
1713 pci_get_drvdata(vdev
->pdev
);
1715 for (i
= 0; i
< vdev
->no_of_vpath
; i
++) {
1716 ring
= &vdev
->vpaths
[i
].ring
;
1717 ring
->budget
= budget
;
1718 vxge_hw_vpath_poll_rx(ring
->handle
);
1719 pkts_processed
+= ring
->pkts_processed
;
1720 budget
-= ring
->pkts_processed
;
1725 VXGE_COMPLETE_ALL_TX(vdev
);
1727 if (pkts_processed
< budget_org
) {
1728 napi_complete(napi
);
1729 /* Re enable the Rx interrupts for the ring */
1730 vxge_hw_device_unmask_all(hldev
);
1731 vxge_hw_device_flush_io(hldev
);
1734 return pkts_processed
;
1737 #ifdef CONFIG_NET_POLL_CONTROLLER
1739 * vxge_netpoll - netpoll event handler entry point
1740 * @dev : pointer to the device structure.
1742 * This function will be called by upper layer to check for events on the
1743 * interface in situations where interrupts are disabled. It is used for
1744 * specific in-kernel networking tasks, such as remote consoles and kernel
1745 * debugging over the network (example netdump in RedHat).
1747 static void vxge_netpoll(struct net_device
*dev
)
1749 struct __vxge_hw_device
*hldev
;
1750 struct vxgedev
*vdev
;
1752 vdev
= (struct vxgedev
*)netdev_priv(dev
);
1753 hldev
= (struct __vxge_hw_device
*)pci_get_drvdata(vdev
->pdev
);
1755 vxge_debug_entryexit(VXGE_TRACE
, "%s:%d", __func__
, __LINE__
);
1757 if (pci_channel_offline(vdev
->pdev
))
1760 disable_irq(dev
->irq
);
1761 vxge_hw_device_clear_tx_rx(hldev
);
1763 vxge_hw_device_clear_tx_rx(hldev
);
1764 VXGE_COMPLETE_ALL_RX(vdev
);
1765 VXGE_COMPLETE_ALL_TX(vdev
);
1767 enable_irq(dev
->irq
);
1769 vxge_debug_entryexit(VXGE_TRACE
,
1770 "%s:%d Exiting...", __func__
, __LINE__
);
1775 /* RTH configuration */
1776 static enum vxge_hw_status
vxge_rth_configure(struct vxgedev
*vdev
)
1778 enum vxge_hw_status status
= VXGE_HW_OK
;
1779 struct vxge_hw_rth_hash_types hash_types
;
1780 u8 itable
[256] = {0}; /* indirection table */
1781 u8 mtable
[256] = {0}; /* CPU to vpath mapping */
1786 * - itable with bucket numbers
1787 * - mtable with bucket-to-vpath mapping
1789 for (index
= 0; index
< (1 << vdev
->config
.rth_bkt_sz
); index
++) {
1790 itable
[index
] = index
;
1791 mtable
[index
] = index
% vdev
->no_of_vpath
;
1794 /* Fill RTH hash types */
1795 hash_types
.hash_type_tcpipv4_en
= vdev
->config
.rth_hash_type_tcpipv4
;
1796 hash_types
.hash_type_ipv4_en
= vdev
->config
.rth_hash_type_ipv4
;
1797 hash_types
.hash_type_tcpipv6_en
= vdev
->config
.rth_hash_type_tcpipv6
;
1798 hash_types
.hash_type_ipv6_en
= vdev
->config
.rth_hash_type_ipv6
;
1799 hash_types
.hash_type_tcpipv6ex_en
=
1800 vdev
->config
.rth_hash_type_tcpipv6ex
;
1801 hash_types
.hash_type_ipv6ex_en
= vdev
->config
.rth_hash_type_ipv6ex
;
1803 /* set indirection table, bucket-to-vpath mapping */
1804 status
= vxge_hw_vpath_rts_rth_itable_set(vdev
->vp_handles
,
1807 vdev
->config
.rth_bkt_sz
);
1808 if (status
!= VXGE_HW_OK
) {
1809 vxge_debug_init(VXGE_ERR
,
1810 "RTH indirection table configuration failed "
1811 "for vpath:%d", vdev
->vpaths
[0].device_id
);
1816 * Because the itable_set() method uses the active_table field
1817 * for the target virtual path the RTH config should be updated
1818 * for all VPATHs. The h/w only uses the lowest numbered VPATH
1819 * when steering frames.
1821 for (index
= 0; index
< vdev
->no_of_vpath
; index
++) {
1822 status
= vxge_hw_vpath_rts_rth_set(
1823 vdev
->vpaths
[index
].handle
,
1824 vdev
->config
.rth_algorithm
,
1826 vdev
->config
.rth_bkt_sz
);
1828 if (status
!= VXGE_HW_OK
) {
1829 vxge_debug_init(VXGE_ERR
,
1830 "RTH configuration failed for vpath:%d",
1831 vdev
->vpaths
[index
].device_id
);
1839 int vxge_mac_list_add(struct vxge_vpath
*vpath
, struct macInfo
*mac
)
1841 struct vxge_mac_addrs
*new_mac_entry
;
1842 u8
*mac_address
= NULL
;
1844 if (vpath
->mac_addr_cnt
>= VXGE_MAX_LEARN_MAC_ADDR_CNT
)
1847 new_mac_entry
= kzalloc(sizeof(struct vxge_mac_addrs
), GFP_ATOMIC
);
1848 if (!new_mac_entry
) {
1849 vxge_debug_mem(VXGE_ERR
,
1850 "%s: memory allocation failed",
1855 list_add(&new_mac_entry
->item
, &vpath
->mac_addr_list
);
1857 /* Copy the new mac address to the list */
1858 mac_address
= (u8
*)&new_mac_entry
->macaddr
;
1859 memcpy(mac_address
, mac
->macaddr
, ETH_ALEN
);
1861 new_mac_entry
->state
= mac
->state
;
1862 vpath
->mac_addr_cnt
++;
1864 /* Is this a multicast address */
1865 if (0x01 & mac
->macaddr
[0])
1866 vpath
->mcast_addr_cnt
++;
1871 /* Add a mac address to DA table */
1872 enum vxge_hw_status
vxge_add_mac_addr(struct vxgedev
*vdev
, struct macInfo
*mac
)
1874 enum vxge_hw_status status
= VXGE_HW_OK
;
1875 struct vxge_vpath
*vpath
;
1876 enum vxge_hw_vpath_mac_addr_add_mode duplicate_mode
;
1878 if (0x01 & mac
->macaddr
[0]) /* multicast address */
1879 duplicate_mode
= VXGE_HW_VPATH_MAC_ADDR_ADD_DUPLICATE
;
1881 duplicate_mode
= VXGE_HW_VPATH_MAC_ADDR_REPLACE_DUPLICATE
;
1883 vpath
= &vdev
->vpaths
[mac
->vpath_no
];
1884 status
= vxge_hw_vpath_mac_addr_add(vpath
->handle
, mac
->macaddr
,
1885 mac
->macmask
, duplicate_mode
);
1886 if (status
!= VXGE_HW_OK
) {
1887 vxge_debug_init(VXGE_ERR
,
1888 "DA config add entry failed for vpath:%d",
1891 if (FALSE
== vxge_mac_list_add(vpath
, mac
))
1897 int vxge_mac_list_del(struct vxge_vpath
*vpath
, struct macInfo
*mac
)
1899 struct list_head
*entry
, *next
;
1901 u8
*mac_address
= (u8
*) (&del_mac
);
1903 /* Copy the mac address to delete from the list */
1904 memcpy(mac_address
, mac
->macaddr
, ETH_ALEN
);
1906 list_for_each_safe(entry
, next
, &vpath
->mac_addr_list
) {
1907 if (((struct vxge_mac_addrs
*)entry
)->macaddr
== del_mac
) {
1909 kfree((struct vxge_mac_addrs
*)entry
);
1910 vpath
->mac_addr_cnt
--;
1912 /* Is this a multicast address */
1913 if (0x01 & mac
->macaddr
[0])
1914 vpath
->mcast_addr_cnt
--;
1921 /* delete a mac address from DA table */
1922 enum vxge_hw_status
vxge_del_mac_addr(struct vxgedev
*vdev
, struct macInfo
*mac
)
1924 enum vxge_hw_status status
= VXGE_HW_OK
;
1925 struct vxge_vpath
*vpath
;
1927 vpath
= &vdev
->vpaths
[mac
->vpath_no
];
1928 status
= vxge_hw_vpath_mac_addr_delete(vpath
->handle
, mac
->macaddr
,
1930 if (status
!= VXGE_HW_OK
) {
1931 vxge_debug_init(VXGE_ERR
,
1932 "DA config delete entry failed for vpath:%d",
1935 vxge_mac_list_del(vpath
, mac
);
1939 /* list all mac addresses from DA table */
1941 static vxge_search_mac_addr_in_da_table(struct vxge_vpath
*vpath
,
1942 struct macInfo
*mac
)
1944 enum vxge_hw_status status
= VXGE_HW_OK
;
1945 unsigned char macmask
[ETH_ALEN
];
1946 unsigned char macaddr
[ETH_ALEN
];
1948 status
= vxge_hw_vpath_mac_addr_get(vpath
->handle
,
1950 if (status
!= VXGE_HW_OK
) {
1951 vxge_debug_init(VXGE_ERR
,
1952 "DA config list entry failed for vpath:%d",
1957 while (memcmp(mac
->macaddr
, macaddr
, ETH_ALEN
)) {
1959 status
= vxge_hw_vpath_mac_addr_get_next(vpath
->handle
,
1961 if (status
!= VXGE_HW_OK
)
1968 /* Store all vlan ids from the list to the vid table */
1969 enum vxge_hw_status
vxge_restore_vpath_vid_table(struct vxge_vpath
*vpath
)
1971 enum vxge_hw_status status
= VXGE_HW_OK
;
1972 struct vxgedev
*vdev
= vpath
->vdev
;
1975 if (vdev
->vlgrp
&& vpath
->is_open
) {
1977 for (vid
= 0; vid
< VLAN_GROUP_ARRAY_LEN
; vid
++) {
1978 if (!vlan_group_get_device(vdev
->vlgrp
, vid
))
1980 /* Add these vlan to the vid table */
1981 status
= vxge_hw_vpath_vid_add(vpath
->handle
, vid
);
1988 /* Store all mac addresses from the list to the DA table */
1989 enum vxge_hw_status
vxge_restore_vpath_mac_addr(struct vxge_vpath
*vpath
)
1991 enum vxge_hw_status status
= VXGE_HW_OK
;
1992 struct macInfo mac_info
;
1993 u8
*mac_address
= NULL
;
1994 struct list_head
*entry
, *next
;
1996 memset(&mac_info
, 0, sizeof(struct macInfo
));
1998 if (vpath
->is_open
) {
2000 list_for_each_safe(entry
, next
, &vpath
->mac_addr_list
) {
2003 ((struct vxge_mac_addrs
*)entry
)->macaddr
;
2004 memcpy(mac_info
.macaddr
, mac_address
, ETH_ALEN
);
2005 ((struct vxge_mac_addrs
*)entry
)->state
=
2006 VXGE_LL_MAC_ADDR_IN_DA_TABLE
;
2007 /* does this mac address already exist in da table? */
2008 status
= vxge_search_mac_addr_in_da_table(vpath
,
2010 if (status
!= VXGE_HW_OK
) {
2011 /* Add this mac address to the DA table */
2012 status
= vxge_hw_vpath_mac_addr_add(
2013 vpath
->handle
, mac_info
.macaddr
,
2015 VXGE_HW_VPATH_MAC_ADDR_ADD_DUPLICATE
);
2016 if (status
!= VXGE_HW_OK
) {
2017 vxge_debug_init(VXGE_ERR
,
2018 "DA add entry failed for vpath:%d",
2020 ((struct vxge_mac_addrs
*)entry
)->state
2021 = VXGE_LL_MAC_ADDR_IN_LIST
;
2031 enum vxge_hw_status
vxge_reset_all_vpaths(struct vxgedev
*vdev
)
2034 enum vxge_hw_status status
= VXGE_HW_OK
;
2036 for (i
= 0; i
< vdev
->no_of_vpath
; i
++)
2037 if (vdev
->vpaths
[i
].handle
) {
2038 if (vxge_hw_vpath_reset(vdev
->vpaths
[i
].handle
)
2040 if (is_vxge_card_up(vdev
) &&
2041 vxge_hw_vpath_recover_from_reset(
2042 vdev
->vpaths
[i
].handle
)
2044 vxge_debug_init(VXGE_ERR
,
2045 "vxge_hw_vpath_recover_"
2046 "from_reset failed for vpath: "
2051 vxge_debug_init(VXGE_ERR
,
2052 "vxge_hw_vpath_reset failed for "
2061 void vxge_close_vpaths(struct vxgedev
*vdev
, int index
)
2064 for (i
= index
; i
< vdev
->no_of_vpath
; i
++) {
2065 if (vdev
->vpaths
[i
].handle
&& vdev
->vpaths
[i
].is_open
) {
2066 vxge_hw_vpath_close(vdev
->vpaths
[i
].handle
);
2067 vdev
->stats
.vpaths_open
--;
2069 vdev
->vpaths
[i
].is_open
= 0;
2070 vdev
->vpaths
[i
].handle
= NULL
;
2075 int vxge_open_vpaths(struct vxgedev
*vdev
)
2077 enum vxge_hw_status status
;
2080 struct vxge_hw_vpath_attr attr
;
2082 for (i
= 0; i
< vdev
->no_of_vpath
; i
++) {
2083 vxge_assert(vdev
->vpaths
[i
].is_configured
);
2084 attr
.vp_id
= vdev
->vpaths
[i
].device_id
;
2085 attr
.fifo_attr
.callback
= vxge_xmit_compl
;
2086 attr
.fifo_attr
.txdl_term
= vxge_tx_term
;
2087 attr
.fifo_attr
.per_txdl_space
= sizeof(struct vxge_tx_priv
);
2088 attr
.fifo_attr
.userdata
= (void *)&vdev
->vpaths
[i
].fifo
;
2090 attr
.ring_attr
.callback
= vxge_rx_1b_compl
;
2091 attr
.ring_attr
.rxd_init
= vxge_rx_initial_replenish
;
2092 attr
.ring_attr
.rxd_term
= vxge_rx_term
;
2093 attr
.ring_attr
.per_rxd_space
= sizeof(struct vxge_rx_priv
);
2094 attr
.ring_attr
.userdata
= (void *)&vdev
->vpaths
[i
].ring
;
2096 vdev
->vpaths
[i
].ring
.ndev
= vdev
->ndev
;
2097 vdev
->vpaths
[i
].ring
.pdev
= vdev
->pdev
;
2098 status
= vxge_hw_vpath_open(vdev
->devh
, &attr
,
2099 &(vdev
->vpaths
[i
].handle
));
2100 if (status
== VXGE_HW_OK
) {
2101 vdev
->vpaths
[i
].fifo
.handle
=
2102 (struct __vxge_hw_fifo
*)attr
.fifo_attr
.userdata
;
2103 vdev
->vpaths
[i
].ring
.handle
=
2104 (struct __vxge_hw_ring
*)attr
.ring_attr
.userdata
;
2105 vdev
->vpaths
[i
].fifo
.tx_steering_type
=
2106 vdev
->config
.tx_steering_type
;
2107 vdev
->vpaths
[i
].fifo
.ndev
= vdev
->ndev
;
2108 vdev
->vpaths
[i
].fifo
.pdev
= vdev
->pdev
;
2109 vdev
->vpaths
[i
].fifo
.indicate_max_pkts
=
2110 vdev
->config
.fifo_indicate_max_pkts
;
2111 vdev
->vpaths
[i
].ring
.rx_vector_no
= 0;
2112 vdev
->vpaths
[i
].ring
.rx_csum
= vdev
->rx_csum
;
2113 vdev
->vpaths
[i
].is_open
= 1;
2114 vdev
->vp_handles
[i
] = vdev
->vpaths
[i
].handle
;
2115 vdev
->vpaths
[i
].ring
.gro_enable
=
2116 vdev
->config
.gro_enable
;
2117 vdev
->vpaths
[i
].ring
.vlan_tag_strip
=
2118 vdev
->vlan_tag_strip
;
2119 vdev
->stats
.vpaths_open
++;
2121 vdev
->stats
.vpath_open_fail
++;
2122 vxge_debug_init(VXGE_ERR
,
2123 "%s: vpath: %d failed to open "
2125 vdev
->ndev
->name
, vdev
->vpaths
[i
].device_id
,
2127 vxge_close_vpaths(vdev
, 0);
2132 ((struct __vxge_hw_vpath_handle
*)vdev
->vpaths
[i
].handle
)->
2134 vdev
->vpaths_deployed
|= vxge_mBIT(vp_id
);
2141 * @irq: the irq of the device.
2142 * @dev_id: a void pointer to the hldev structure of the Titan device
2143 * @ptregs: pointer to the registers pushed on the stack.
2145 * This function is the ISR handler of the device when napi is enabled. It
2146 * identifies the reason for the interrupt and calls the relevant service
2149 static irqreturn_t
vxge_isr_napi(int irq
, void *dev_id
)
2151 struct net_device
*dev
;
2152 struct __vxge_hw_device
*hldev
;
2154 enum vxge_hw_status status
;
2155 struct vxgedev
*vdev
= (struct vxgedev
*) dev_id
;;
2157 vxge_debug_intr(VXGE_TRACE
, "%s:%d", __func__
, __LINE__
);
2160 hldev
= (struct __vxge_hw_device
*)pci_get_drvdata(vdev
->pdev
);
2162 if (pci_channel_offline(vdev
->pdev
))
2165 if (unlikely(!is_vxge_card_up(vdev
)))
2168 status
= vxge_hw_device_begin_irq(hldev
, vdev
->exec_mode
,
2170 if (status
== VXGE_HW_OK
) {
2171 vxge_hw_device_mask_all(hldev
);
2174 VXGE_HW_TITAN_GENERAL_INT_STATUS_VPATH_TRAFFIC_INT(
2175 vdev
->vpaths_deployed
>>
2176 (64 - VXGE_HW_MAX_VIRTUAL_PATHS
))) {
2178 vxge_hw_device_clear_tx_rx(hldev
);
2179 napi_schedule(&vdev
->napi
);
2180 vxge_debug_intr(VXGE_TRACE
,
2181 "%s:%d Exiting...", __func__
, __LINE__
);
2184 vxge_hw_device_unmask_all(hldev
);
2185 } else if (unlikely((status
== VXGE_HW_ERR_VPATH
) ||
2186 (status
== VXGE_HW_ERR_CRITICAL
) ||
2187 (status
== VXGE_HW_ERR_FIFO
))) {
2188 vxge_hw_device_mask_all(hldev
);
2189 vxge_hw_device_flush_io(hldev
);
2191 } else if (unlikely(status
== VXGE_HW_ERR_SLOT_FREEZE
))
2194 vxge_debug_intr(VXGE_TRACE
, "%s:%d Exiting...", __func__
, __LINE__
);
2198 #ifdef CONFIG_PCI_MSI
2201 vxge_tx_msix_handle(int irq
, void *dev_id
)
2203 struct vxge_fifo
*fifo
= (struct vxge_fifo
*)dev_id
;
2205 VXGE_COMPLETE_VPATH_TX(fifo
);
2211 vxge_rx_msix_napi_handle(int irq
, void *dev_id
)
2213 struct vxge_ring
*ring
= (struct vxge_ring
*)dev_id
;
2215 /* MSIX_IDX for Rx is 1 */
2216 vxge_hw_channel_msix_mask((struct __vxge_hw_channel
*)ring
->handle
,
2217 ring
->rx_vector_no
);
2219 napi_schedule(&ring
->napi
);
2224 vxge_alarm_msix_handle(int irq
, void *dev_id
)
2227 enum vxge_hw_status status
;
2228 struct vxge_vpath
*vpath
= (struct vxge_vpath
*)dev_id
;
2229 struct vxgedev
*vdev
= vpath
->vdev
;
2231 VXGE_HW_VPATH_MSIX_ACTIVE
* vdev
->no_of_vpath
- 2;
2233 for (i
= 0; i
< vdev
->no_of_vpath
; i
++) {
2234 vxge_hw_vpath_msix_mask(vdev
->vpaths
[i
].handle
,
2237 status
= vxge_hw_vpath_alarm_process(vdev
->vpaths
[i
].handle
,
2239 if (status
== VXGE_HW_OK
) {
2241 vxge_hw_vpath_msix_unmask(vdev
->vpaths
[i
].handle
,
2245 vxge_debug_intr(VXGE_ERR
,
2246 "%s: vxge_hw_vpath_alarm_process failed %x ",
2247 VXGE_DRIVER_NAME
, status
);
2252 static int vxge_alloc_msix(struct vxgedev
*vdev
)
2256 int alarm_msix_id
= 0, msix_intr_vect
= 0;
2259 /* Tx/Rx MSIX Vectors count */
2260 vdev
->intr_cnt
= vdev
->no_of_vpath
* 2;
2262 /* Alarm MSIX Vectors count */
2265 intr_cnt
= (vdev
->max_vpath_supported
* 2) + 1;
2266 vdev
->entries
= kzalloc(intr_cnt
* sizeof(struct msix_entry
),
2268 if (!vdev
->entries
) {
2269 vxge_debug_init(VXGE_ERR
,
2270 "%s: memory allocation failed",
2275 vdev
->vxge_entries
= kzalloc(intr_cnt
* sizeof(struct vxge_msix_entry
),
2277 if (!vdev
->vxge_entries
) {
2278 vxge_debug_init(VXGE_ERR
, "%s: memory allocation failed",
2280 kfree(vdev
->entries
);
2284 /* Last vector in the list is used for alarm */
2285 alarm_msix_id
= VXGE_HW_VPATH_MSIX_ACTIVE
* vdev
->no_of_vpath
- 2;
2286 for (i
= 0, j
= 0; i
< vdev
->max_vpath_supported
; i
++) {
2288 msix_intr_vect
= i
* VXGE_HW_VPATH_MSIX_ACTIVE
;
2290 /* Initialize the fifo vector */
2291 vdev
->entries
[j
].entry
= msix_intr_vect
;
2292 vdev
->vxge_entries
[j
].entry
= msix_intr_vect
;
2293 vdev
->vxge_entries
[j
].in_use
= 0;
2296 /* Initialize the ring vector */
2297 vdev
->entries
[j
].entry
= msix_intr_vect
+ 1;
2298 vdev
->vxge_entries
[j
].entry
= msix_intr_vect
+ 1;
2299 vdev
->vxge_entries
[j
].in_use
= 0;
2303 /* Initialize the alarm vector */
2304 vdev
->entries
[j
].entry
= alarm_msix_id
;
2305 vdev
->vxge_entries
[j
].entry
= alarm_msix_id
;
2306 vdev
->vxge_entries
[j
].in_use
= 0;
2308 ret
= pci_enable_msix(vdev
->pdev
, vdev
->entries
, intr_cnt
);
2309 /* if driver request exceeeds available irq's, request with a small
2313 vxge_debug_init(VXGE_ERR
,
2314 "%s: MSI-X enable failed for %d vectors, available: %d",
2315 VXGE_DRIVER_NAME
, intr_cnt
, ret
);
2316 vdev
->max_vpath_supported
= vdev
->no_of_vpath
;
2317 intr_cnt
= (vdev
->max_vpath_supported
* 2) + 1;
2319 /* Reset the alarm vector setting */
2320 vdev
->entries
[j
].entry
= 0;
2321 vdev
->vxge_entries
[j
].entry
= 0;
2323 /* Initialize the alarm vector with new setting */
2324 vdev
->entries
[intr_cnt
- 1].entry
= alarm_msix_id
;
2325 vdev
->vxge_entries
[intr_cnt
- 1].entry
= alarm_msix_id
;
2326 vdev
->vxge_entries
[intr_cnt
- 1].in_use
= 0;
2328 ret
= pci_enable_msix(vdev
->pdev
, vdev
->entries
, intr_cnt
);
2330 vxge_debug_init(VXGE_ERR
,
2331 "%s: MSI-X enabled for %d vectors",
2332 VXGE_DRIVER_NAME
, intr_cnt
);
2336 vxge_debug_init(VXGE_ERR
,
2337 "%s: MSI-X enable failed for %d vectors, ret: %d",
2338 VXGE_DRIVER_NAME
, intr_cnt
, ret
);
2339 kfree(vdev
->entries
);
2340 kfree(vdev
->vxge_entries
);
2341 vdev
->entries
= NULL
;
2342 vdev
->vxge_entries
= NULL
;
2348 static int vxge_enable_msix(struct vxgedev
*vdev
)
2352 enum vxge_hw_status status
;
2353 /* 0 - Tx, 1 - Rx */
2355 int alarm_msix_id
= 0, msix_intr_vect
= 0;;
2358 /* allocate msix vectors */
2359 ret
= vxge_alloc_msix(vdev
);
2361 /* Last vector in the list is used for alarm */
2363 VXGE_HW_VPATH_MSIX_ACTIVE
* vdev
->no_of_vpath
- 2;
2364 for (i
= 0; i
< vdev
->no_of_vpath
; i
++) {
2366 /* If fifo or ring are not enabled
2367 the MSIX vector for that should be set to 0
2368 Hence initializeing this array to all 0s.
2370 memset(tim_msix_id
, 0, sizeof(tim_msix_id
));
2371 msix_intr_vect
= i
* VXGE_HW_VPATH_MSIX_ACTIVE
;
2372 tim_msix_id
[0] = msix_intr_vect
;
2374 tim_msix_id
[1] = msix_intr_vect
+ 1;
2375 vdev
->vpaths
[i
].ring
.rx_vector_no
= tim_msix_id
[1];
2377 status
= vxge_hw_vpath_msix_set(
2378 vdev
->vpaths
[i
].handle
,
2379 tim_msix_id
, alarm_msix_id
);
2380 if (status
!= VXGE_HW_OK
) {
2381 vxge_debug_init(VXGE_ERR
,
2382 "vxge_hw_vpath_msix_set "
2383 "failed with status : %x", status
);
2384 kfree(vdev
->entries
);
2385 kfree(vdev
->vxge_entries
);
2386 pci_disable_msix(vdev
->pdev
);
2395 static void vxge_rem_msix_isr(struct vxgedev
*vdev
)
2399 for (intr_cnt
= 0; intr_cnt
< (vdev
->max_vpath_supported
* 2 + 1);
2401 if (vdev
->vxge_entries
[intr_cnt
].in_use
) {
2402 synchronize_irq(vdev
->entries
[intr_cnt
].vector
);
2403 free_irq(vdev
->entries
[intr_cnt
].vector
,
2404 vdev
->vxge_entries
[intr_cnt
].arg
);
2405 vdev
->vxge_entries
[intr_cnt
].in_use
= 0;
2409 kfree(vdev
->entries
);
2410 kfree(vdev
->vxge_entries
);
2411 vdev
->entries
= NULL
;
2412 vdev
->vxge_entries
= NULL
;
2414 if (vdev
->config
.intr_type
== MSI_X
)
2415 pci_disable_msix(vdev
->pdev
);
2419 static void vxge_rem_isr(struct vxgedev
*vdev
)
2421 struct __vxge_hw_device
*hldev
;
2422 hldev
= (struct __vxge_hw_device
*) pci_get_drvdata(vdev
->pdev
);
2424 #ifdef CONFIG_PCI_MSI
2425 if (vdev
->config
.intr_type
== MSI_X
) {
2426 vxge_rem_msix_isr(vdev
);
2429 if (vdev
->config
.intr_type
== INTA
) {
2430 synchronize_irq(vdev
->pdev
->irq
);
2431 free_irq(vdev
->pdev
->irq
, vdev
);
2435 static int vxge_add_isr(struct vxgedev
*vdev
)
2438 #ifdef CONFIG_PCI_MSI
2439 int vp_idx
= 0, intr_idx
= 0, intr_cnt
= 0, msix_idx
= 0, irq_req
= 0;
2440 u64 function_mode
= vdev
->config
.device_hw_info
.function_mode
;
2441 int pci_fun
= PCI_FUNC(vdev
->pdev
->devfn
);
2443 if (vdev
->config
.intr_type
== MSI_X
)
2444 ret
= vxge_enable_msix(vdev
);
2447 vxge_debug_init(VXGE_ERR
,
2448 "%s: Enabling MSI-X Failed", VXGE_DRIVER_NAME
);
2449 if ((function_mode
== VXGE_HW_FUNCTION_MODE_MULTI_FUNCTION
) &&
2450 test_and_set_bit(__VXGE_STATE_CARD_UP
,
2451 &driver_config
->inta_dev_open
))
2452 return VXGE_HW_FAIL
;
2454 vxge_debug_init(VXGE_ERR
,
2455 "%s: Defaulting to INTA", VXGE_DRIVER_NAME
);
2456 vdev
->config
.intr_type
= INTA
;
2457 vxge_hw_device_set_intr_type(vdev
->devh
,
2458 VXGE_HW_INTR_MODE_IRQLINE
);
2459 vxge_close_vpaths(vdev
, 1);
2460 vdev
->no_of_vpath
= 1;
2461 vdev
->stats
.vpaths_open
= 1;
2465 if (vdev
->config
.intr_type
== MSI_X
) {
2467 intr_idx
< (vdev
->no_of_vpath
*
2468 VXGE_HW_VPATH_MSIX_ACTIVE
); intr_idx
++) {
2470 msix_idx
= intr_idx
% VXGE_HW_VPATH_MSIX_ACTIVE
;
2475 snprintf(vdev
->desc
[intr_cnt
], VXGE_INTR_STRLEN
,
2476 "%s:vxge fn: %d vpath: %d Tx MSI-X: %d",
2477 vdev
->ndev
->name
, pci_fun
, vp_idx
,
2478 vdev
->entries
[intr_cnt
].entry
);
2480 vdev
->entries
[intr_cnt
].vector
,
2481 vxge_tx_msix_handle
, 0,
2482 vdev
->desc
[intr_cnt
],
2483 &vdev
->vpaths
[vp_idx
].fifo
);
2484 vdev
->vxge_entries
[intr_cnt
].arg
=
2485 &vdev
->vpaths
[vp_idx
].fifo
;
2489 snprintf(vdev
->desc
[intr_cnt
], VXGE_INTR_STRLEN
,
2490 "%s:vxge fn: %d vpath: %d Rx MSI-X: %d",
2491 vdev
->ndev
->name
, pci_fun
, vp_idx
,
2492 vdev
->entries
[intr_cnt
].entry
);
2494 vdev
->entries
[intr_cnt
].vector
,
2495 vxge_rx_msix_napi_handle
,
2497 vdev
->desc
[intr_cnt
],
2498 &vdev
->vpaths
[vp_idx
].ring
);
2499 vdev
->vxge_entries
[intr_cnt
].arg
=
2500 &vdev
->vpaths
[vp_idx
].ring
;
2506 vxge_debug_init(VXGE_ERR
,
2507 "%s: MSIX - %d Registration failed",
2508 vdev
->ndev
->name
, intr_cnt
);
2509 vxge_rem_msix_isr(vdev
);
2510 if ((function_mode
==
2511 VXGE_HW_FUNCTION_MODE_MULTI_FUNCTION
) &&
2512 test_and_set_bit(__VXGE_STATE_CARD_UP
,
2513 &driver_config
->inta_dev_open
))
2514 return VXGE_HW_FAIL
;
2516 vxge_hw_device_set_intr_type(
2518 VXGE_HW_INTR_MODE_IRQLINE
);
2519 vdev
->config
.intr_type
= INTA
;
2520 vxge_debug_init(VXGE_ERR
,
2521 "%s: Defaulting to INTA"
2522 , vdev
->ndev
->name
);
2523 vxge_close_vpaths(vdev
, 1);
2524 vdev
->no_of_vpath
= 1;
2525 vdev
->stats
.vpaths_open
= 1;
2531 /* We requested for this msix interrupt */
2532 vdev
->vxge_entries
[intr_cnt
].in_use
= 1;
2533 vxge_hw_vpath_msix_unmask(
2534 vdev
->vpaths
[vp_idx
].handle
,
2539 /* Point to next vpath handler */
2540 if (((intr_idx
+ 1) % VXGE_HW_VPATH_MSIX_ACTIVE
== 0)
2541 && (vp_idx
< (vdev
->no_of_vpath
- 1)))
2545 intr_cnt
= vdev
->max_vpath_supported
* 2;
2546 snprintf(vdev
->desc
[intr_cnt
], VXGE_INTR_STRLEN
,
2547 "%s:vxge Alarm fn: %d MSI-X: %d",
2548 vdev
->ndev
->name
, pci_fun
,
2549 vdev
->entries
[intr_cnt
].entry
);
2550 /* For Alarm interrupts */
2551 ret
= request_irq(vdev
->entries
[intr_cnt
].vector
,
2552 vxge_alarm_msix_handle
, 0,
2553 vdev
->desc
[intr_cnt
],
2554 &vdev
->vpaths
[vp_idx
]);
2556 vxge_debug_init(VXGE_ERR
,
2557 "%s: MSIX - %d Registration failed",
2558 vdev
->ndev
->name
, intr_cnt
);
2559 vxge_rem_msix_isr(vdev
);
2560 if ((function_mode
==
2561 VXGE_HW_FUNCTION_MODE_MULTI_FUNCTION
) &&
2562 test_and_set_bit(__VXGE_STATE_CARD_UP
,
2563 &driver_config
->inta_dev_open
))
2564 return VXGE_HW_FAIL
;
2566 vxge_hw_device_set_intr_type(vdev
->devh
,
2567 VXGE_HW_INTR_MODE_IRQLINE
);
2568 vdev
->config
.intr_type
= INTA
;
2569 vxge_debug_init(VXGE_ERR
,
2570 "%s: Defaulting to INTA",
2572 vxge_close_vpaths(vdev
, 1);
2573 vdev
->no_of_vpath
= 1;
2574 vdev
->stats
.vpaths_open
= 1;
2579 vxge_hw_vpath_msix_unmask(vdev
->vpaths
[vp_idx
].handle
,
2581 vdev
->vxge_entries
[intr_cnt
].in_use
= 1;
2582 vdev
->vxge_entries
[intr_cnt
].arg
= &vdev
->vpaths
[vp_idx
];
2586 snprintf(vdev
->desc
[0], VXGE_INTR_STRLEN
, "%s:vxge", vdev
->ndev
->name
);
2588 if (vdev
->config
.intr_type
== INTA
) {
2589 ret
= request_irq((int) vdev
->pdev
->irq
,
2591 IRQF_SHARED
, vdev
->desc
[0], vdev
);
2593 vxge_debug_init(VXGE_ERR
,
2594 "%s %s-%d: ISR registration failed",
2595 VXGE_DRIVER_NAME
, "IRQ", vdev
->pdev
->irq
);
2598 vxge_debug_init(VXGE_TRACE
,
2599 "new %s-%d line allocated",
2600 "IRQ", vdev
->pdev
->irq
);
2606 static void vxge_poll_vp_reset(unsigned long data
)
2608 struct vxgedev
*vdev
= (struct vxgedev
*)data
;
2611 for (i
= 0; i
< vdev
->no_of_vpath
; i
++) {
2612 if (test_bit(i
, &vdev
->vp_reset
)) {
2613 vxge_reset_vpath(vdev
, i
);
2617 if (j
&& (vdev
->config
.intr_type
!= MSI_X
)) {
2618 vxge_hw_device_unmask_all(vdev
->devh
);
2619 vxge_hw_device_flush_io(vdev
->devh
);
2622 mod_timer(&vdev
->vp_reset_timer
, jiffies
+ HZ
/ 2);
2625 static void vxge_poll_vp_lockup(unsigned long data
)
2627 struct vxgedev
*vdev
= (struct vxgedev
*)data
;
2629 struct vxge_ring
*ring
;
2630 enum vxge_hw_status status
= VXGE_HW_OK
;
2632 for (i
= 0; i
< vdev
->no_of_vpath
; i
++) {
2633 ring
= &vdev
->vpaths
[i
].ring
;
2634 /* Did this vpath received any packets */
2635 if (ring
->stats
.prev_rx_frms
== ring
->stats
.rx_frms
) {
2636 status
= vxge_hw_vpath_check_leak(ring
->handle
);
2638 /* Did it received any packets last time */
2639 if ((VXGE_HW_FAIL
== status
) &&
2640 (VXGE_HW_FAIL
== ring
->last_status
)) {
2642 /* schedule vpath reset */
2643 if (!test_and_set_bit(i
, &vdev
->vp_reset
)) {
2645 /* disable interrupts for this vpath */
2646 vxge_vpath_intr_disable(vdev
, i
);
2648 /* stop the queue for this vpath */
2649 vxge_stop_tx_queue(&vdev
->vpaths
[i
].
2655 ring
->stats
.prev_rx_frms
= ring
->stats
.rx_frms
;
2656 ring
->last_status
= status
;
2659 /* Check every 1 milli second */
2660 mod_timer(&vdev
->vp_lockup_timer
, jiffies
+ HZ
/ 1000);
2665 * @dev: pointer to the device structure.
2667 * This function is the open entry point of the driver. It mainly calls a
2668 * function to allocate Rx buffers and inserts them into the buffer
2669 * descriptors and then enables the Rx part of the NIC.
2670 * Return value: '0' on success and an appropriate (-)ve integer as
2671 * defined in errno.h file on failure.
2674 vxge_open(struct net_device
*dev
)
2676 enum vxge_hw_status status
;
2677 struct vxgedev
*vdev
;
2678 struct __vxge_hw_device
*hldev
;
2681 u64 val64
, function_mode
;
2682 vxge_debug_entryexit(VXGE_TRACE
,
2683 "%s: %s:%d", dev
->name
, __func__
, __LINE__
);
2685 vdev
= (struct vxgedev
*)netdev_priv(dev
);
2686 hldev
= (struct __vxge_hw_device
*) pci_get_drvdata(vdev
->pdev
);
2687 function_mode
= vdev
->config
.device_hw_info
.function_mode
;
2689 /* make sure you have link off by default every time Nic is
2691 netif_carrier_off(dev
);
2693 /* Check for another device already opn with INTA */
2694 if ((function_mode
== VXGE_HW_FUNCTION_MODE_MULTI_FUNCTION
) &&
2695 test_bit(__VXGE_STATE_CARD_UP
, &driver_config
->inta_dev_open
)) {
2701 status
= vxge_open_vpaths(vdev
);
2702 if (status
!= VXGE_HW_OK
) {
2703 vxge_debug_init(VXGE_ERR
,
2704 "%s: fatal: Vpath open failed", vdev
->ndev
->name
);
2709 vdev
->mtu
= dev
->mtu
;
2711 status
= vxge_add_isr(vdev
);
2712 if (status
!= VXGE_HW_OK
) {
2713 vxge_debug_init(VXGE_ERR
,
2714 "%s: fatal: ISR add failed", dev
->name
);
2720 if (vdev
->config
.intr_type
!= MSI_X
) {
2721 netif_napi_add(dev
, &vdev
->napi
, vxge_poll_inta
,
2722 vdev
->config
.napi_weight
);
2723 napi_enable(&vdev
->napi
);
2724 for (i
= 0; i
< vdev
->no_of_vpath
; i
++)
2725 vdev
->vpaths
[i
].ring
.napi_p
= &vdev
->napi
;
2727 for (i
= 0; i
< vdev
->no_of_vpath
; i
++) {
2728 netif_napi_add(dev
, &vdev
->vpaths
[i
].ring
.napi
,
2729 vxge_poll_msix
, vdev
->config
.napi_weight
);
2730 napi_enable(&vdev
->vpaths
[i
].ring
.napi
);
2731 vdev
->vpaths
[i
].ring
.napi_p
=
2732 &vdev
->vpaths
[i
].ring
.napi
;
2737 if (vdev
->config
.rth_steering
) {
2738 status
= vxge_rth_configure(vdev
);
2739 if (status
!= VXGE_HW_OK
) {
2740 vxge_debug_init(VXGE_ERR
,
2741 "%s: fatal: RTH configuration failed",
2748 for (i
= 0; i
< vdev
->no_of_vpath
; i
++) {
2749 /* set initial mtu before enabling the device */
2750 status
= vxge_hw_vpath_mtu_set(vdev
->vpaths
[i
].handle
,
2752 if (status
!= VXGE_HW_OK
) {
2753 vxge_debug_init(VXGE_ERR
,
2754 "%s: fatal: can not set new MTU", dev
->name
);
2760 VXGE_DEVICE_DEBUG_LEVEL_SET(VXGE_TRACE
, VXGE_COMPONENT_LL
, vdev
);
2761 vxge_debug_init(vdev
->level_trace
,
2762 "%s: MTU is %d", vdev
->ndev
->name
, vdev
->mtu
);
2763 VXGE_DEVICE_DEBUG_LEVEL_SET(VXGE_ERR
, VXGE_COMPONENT_LL
, vdev
);
2765 /* Reprogram the DA table with populated mac addresses */
2766 for (i
= 0; i
< vdev
->no_of_vpath
; i
++) {
2767 vxge_restore_vpath_mac_addr(&vdev
->vpaths
[i
]);
2768 vxge_restore_vpath_vid_table(&vdev
->vpaths
[i
]);
2771 /* Enable vpath to sniff all unicast/multicast traffic that not
2772 * addressed to them. We allow promiscous mode for PF only
2776 for (i
= 0; i
< VXGE_HW_MAX_VIRTUAL_PATHS
; i
++)
2777 val64
|= VXGE_HW_RXMAC_AUTHORIZE_ALL_ADDR_VP(i
);
2779 vxge_hw_mgmt_reg_write(vdev
->devh
,
2780 vxge_hw_mgmt_reg_type_mrpcim
,
2782 (ulong
)offsetof(struct vxge_hw_mrpcim_reg
,
2783 rxmac_authorize_all_addr
),
2786 vxge_hw_mgmt_reg_write(vdev
->devh
,
2787 vxge_hw_mgmt_reg_type_mrpcim
,
2789 (ulong
)offsetof(struct vxge_hw_mrpcim_reg
,
2790 rxmac_authorize_all_vid
),
2793 vxge_set_multicast(dev
);
2795 /* Enabling Bcast and mcast for all vpath */
2796 for (i
= 0; i
< vdev
->no_of_vpath
; i
++) {
2797 status
= vxge_hw_vpath_bcast_enable(vdev
->vpaths
[i
].handle
);
2798 if (status
!= VXGE_HW_OK
)
2799 vxge_debug_init(VXGE_ERR
,
2800 "%s : Can not enable bcast for vpath "
2801 "id %d", dev
->name
, i
);
2802 if (vdev
->config
.addr_learn_en
) {
2804 vxge_hw_vpath_mcast_enable(vdev
->vpaths
[i
].handle
);
2805 if (status
!= VXGE_HW_OK
)
2806 vxge_debug_init(VXGE_ERR
,
2807 "%s : Can not enable mcast for vpath "
2808 "id %d", dev
->name
, i
);
2812 vxge_hw_device_setpause_data(vdev
->devh
, 0,
2813 vdev
->config
.tx_pause_enable
,
2814 vdev
->config
.rx_pause_enable
);
2816 if (vdev
->vp_reset_timer
.function
== NULL
)
2817 vxge_os_timer(vdev
->vp_reset_timer
,
2818 vxge_poll_vp_reset
, vdev
, (HZ
/2));
2820 if (vdev
->vp_lockup_timer
.function
== NULL
)
2821 vxge_os_timer(vdev
->vp_lockup_timer
,
2822 vxge_poll_vp_lockup
, vdev
, (HZ
/2));
2824 set_bit(__VXGE_STATE_CARD_UP
, &vdev
->state
);
2828 if (vxge_hw_device_link_state_get(vdev
->devh
) == VXGE_HW_LINK_UP
) {
2829 netif_carrier_on(vdev
->ndev
);
2830 printk(KERN_NOTICE
"%s: Link Up\n", vdev
->ndev
->name
);
2831 vdev
->stats
.link_up
++;
2834 vxge_hw_device_intr_enable(vdev
->devh
);
2838 for (i
= 0; i
< vdev
->no_of_vpath
; i
++) {
2839 vxge_hw_vpath_enable(vdev
->vpaths
[i
].handle
);
2841 vxge_hw_vpath_rx_doorbell_init(vdev
->vpaths
[i
].handle
);
2844 vxge_start_all_tx_queue(vdev
);
2851 if (vdev
->config
.intr_type
!= MSI_X
)
2852 napi_disable(&vdev
->napi
);
2854 for (i
= 0; i
< vdev
->no_of_vpath
; i
++)
2855 napi_disable(&vdev
->vpaths
[i
].ring
.napi
);
2859 vxge_close_vpaths(vdev
, 0);
2861 vxge_debug_entryexit(VXGE_TRACE
,
2862 "%s: %s:%d Exiting...",
2863 dev
->name
, __func__
, __LINE__
);
2867 /* Loop throught the mac address list and delete all the entries */
2868 void vxge_free_mac_add_list(struct vxge_vpath
*vpath
)
2871 struct list_head
*entry
, *next
;
2872 if (list_empty(&vpath
->mac_addr_list
))
2875 list_for_each_safe(entry
, next
, &vpath
->mac_addr_list
) {
2877 kfree((struct vxge_mac_addrs
*)entry
);
2881 static void vxge_napi_del_all(struct vxgedev
*vdev
)
2884 if (vdev
->config
.intr_type
!= MSI_X
)
2885 netif_napi_del(&vdev
->napi
);
2887 for (i
= 0; i
< vdev
->no_of_vpath
; i
++)
2888 netif_napi_del(&vdev
->vpaths
[i
].ring
.napi
);
2893 int do_vxge_close(struct net_device
*dev
, int do_io
)
2895 enum vxge_hw_status status
;
2896 struct vxgedev
*vdev
;
2897 struct __vxge_hw_device
*hldev
;
2899 u64 val64
, vpath_vector
;
2900 vxge_debug_entryexit(VXGE_TRACE
, "%s: %s:%d",
2901 dev
->name
, __func__
, __LINE__
);
2903 vdev
= (struct vxgedev
*)netdev_priv(dev
);
2904 hldev
= (struct __vxge_hw_device
*) pci_get_drvdata(vdev
->pdev
);
2906 if (unlikely(!is_vxge_card_up(vdev
)))
2909 /* If vxge_handle_crit_err task is executing,
2910 * wait till it completes. */
2911 while (test_and_set_bit(__VXGE_STATE_RESET_CARD
, &vdev
->state
))
2914 clear_bit(__VXGE_STATE_CARD_UP
, &vdev
->state
);
2916 /* Put the vpath back in normal mode */
2917 vpath_vector
= vxge_mBIT(vdev
->vpaths
[0].device_id
);
2918 status
= vxge_hw_mgmt_reg_read(vdev
->devh
,
2919 vxge_hw_mgmt_reg_type_mrpcim
,
2922 struct vxge_hw_mrpcim_reg
,
2923 rts_mgr_cbasin_cfg
),
2926 if (status
== VXGE_HW_OK
) {
2927 val64
&= ~vpath_vector
;
2928 status
= vxge_hw_mgmt_reg_write(vdev
->devh
,
2929 vxge_hw_mgmt_reg_type_mrpcim
,
2932 struct vxge_hw_mrpcim_reg
,
2933 rts_mgr_cbasin_cfg
),
2937 /* Remove the function 0 from promiscous mode */
2938 vxge_hw_mgmt_reg_write(vdev
->devh
,
2939 vxge_hw_mgmt_reg_type_mrpcim
,
2941 (ulong
)offsetof(struct vxge_hw_mrpcim_reg
,
2942 rxmac_authorize_all_addr
),
2945 vxge_hw_mgmt_reg_write(vdev
->devh
,
2946 vxge_hw_mgmt_reg_type_mrpcim
,
2948 (ulong
)offsetof(struct vxge_hw_mrpcim_reg
,
2949 rxmac_authorize_all_vid
),
2954 del_timer_sync(&vdev
->vp_lockup_timer
);
2956 del_timer_sync(&vdev
->vp_reset_timer
);
2959 if (vdev
->config
.intr_type
!= MSI_X
)
2960 napi_disable(&vdev
->napi
);
2962 for (i
= 0; i
< vdev
->no_of_vpath
; i
++)
2963 napi_disable(&vdev
->vpaths
[i
].ring
.napi
);
2966 netif_carrier_off(vdev
->ndev
);
2967 printk(KERN_NOTICE
"%s: Link Down\n", vdev
->ndev
->name
);
2968 vxge_stop_all_tx_queue(vdev
);
2970 /* Note that at this point xmit() is stopped by upper layer */
2972 vxge_hw_device_intr_disable(vdev
->devh
);
2978 vxge_napi_del_all(vdev
);
2981 vxge_reset_all_vpaths(vdev
);
2983 vxge_close_vpaths(vdev
, 0);
2985 vxge_debug_entryexit(VXGE_TRACE
,
2986 "%s: %s:%d Exiting...", dev
->name
, __func__
, __LINE__
);
2988 clear_bit(__VXGE_STATE_CARD_UP
, &driver_config
->inta_dev_open
);
2989 clear_bit(__VXGE_STATE_RESET_CARD
, &vdev
->state
);
2996 * @dev: device pointer.
2998 * This is the stop entry point of the driver. It needs to undo exactly
2999 * whatever was done by the open entry point, thus it's usually referred to
3000 * as the close function.Among other things this function mainly stops the
3001 * Rx side of the NIC and frees all the Rx buffers in the Rx rings.
3002 * Return value: '0' on success and an appropriate (-)ve integer as
3003 * defined in errno.h file on failure.
3006 vxge_close(struct net_device
*dev
)
3008 do_vxge_close(dev
, 1);
3014 * @dev: net device pointer.
3015 * @new_mtu :the new MTU size for the device.
3017 * A driver entry point to change MTU size for the device. Before changing
3018 * the MTU the device must be stopped.
3020 static int vxge_change_mtu(struct net_device
*dev
, int new_mtu
)
3022 struct vxgedev
*vdev
= netdev_priv(dev
);
3024 vxge_debug_entryexit(vdev
->level_trace
,
3025 "%s:%d", __func__
, __LINE__
);
3026 if ((new_mtu
< VXGE_HW_MIN_MTU
) || (new_mtu
> VXGE_HW_MAX_MTU
)) {
3027 vxge_debug_init(vdev
->level_err
,
3028 "%s: mtu size is invalid", dev
->name
);
3032 /* check if device is down already */
3033 if (unlikely(!is_vxge_card_up(vdev
))) {
3034 /* just store new value, will use later on open() */
3036 vxge_debug_init(vdev
->level_err
,
3037 "%s", "device is down on MTU change");
3041 vxge_debug_init(vdev
->level_trace
,
3042 "trying to apply new MTU %d", new_mtu
);
3044 if (vxge_close(dev
))
3048 vdev
->mtu
= new_mtu
;
3053 vxge_debug_init(vdev
->level_trace
,
3054 "%s: MTU changed to %d", vdev
->ndev
->name
, new_mtu
);
3056 vxge_debug_entryexit(vdev
->level_trace
,
3057 "%s:%d Exiting...", __func__
, __LINE__
);
3064 * @dev: pointer to the device structure
3066 * Updates the device statistics structure. This function updates the device
3067 * statistics structure in the net_device structure and returns a pointer
3070 static struct net_device_stats
*
3071 vxge_get_stats(struct net_device
*dev
)
3073 struct vxgedev
*vdev
;
3074 struct net_device_stats
*net_stats
;
3077 vdev
= netdev_priv(dev
);
3079 net_stats
= &vdev
->stats
.net_stats
;
3081 memset(net_stats
, 0, sizeof(struct net_device_stats
));
3083 for (k
= 0; k
< vdev
->no_of_vpath
; k
++) {
3084 net_stats
->rx_packets
+= vdev
->vpaths
[k
].ring
.stats
.rx_frms
;
3085 net_stats
->rx_bytes
+= vdev
->vpaths
[k
].ring
.stats
.rx_bytes
;
3086 net_stats
->rx_errors
+= vdev
->vpaths
[k
].ring
.stats
.rx_errors
;
3087 net_stats
->multicast
+= vdev
->vpaths
[k
].ring
.stats
.rx_mcast
;
3088 net_stats
->rx_dropped
+=
3089 vdev
->vpaths
[k
].ring
.stats
.rx_dropped
;
3091 net_stats
->tx_packets
+= vdev
->vpaths
[k
].fifo
.stats
.tx_frms
;
3092 net_stats
->tx_bytes
+= vdev
->vpaths
[k
].fifo
.stats
.tx_bytes
;
3093 net_stats
->tx_errors
+= vdev
->vpaths
[k
].fifo
.stats
.tx_errors
;
3101 * @dev: Device pointer.
3102 * @ifr: An IOCTL specific structure, that can contain a pointer to
3103 * a proprietary structure used to pass information to the driver.
3104 * @cmd: This is used to distinguish between the different commands that
3105 * can be passed to the IOCTL functions.
3107 * Entry point for the Ioctl.
3109 static int vxge_ioctl(struct net_device
*dev
, struct ifreq
*rq
, int cmd
)
3116 * @dev: pointer to net device structure
3118 * Watchdog for transmit side.
3119 * This function is triggered if the Tx Queue is stopped
3120 * for a pre-defined amount of time when the Interface is still up.
3123 vxge_tx_watchdog(struct net_device
*dev
)
3125 struct vxgedev
*vdev
;
3127 vxge_debug_entryexit(VXGE_TRACE
, "%s:%d", __func__
, __LINE__
);
3129 vdev
= (struct vxgedev
*)netdev_priv(dev
);
3131 vdev
->cric_err_event
= VXGE_HW_EVENT_RESET_START
;
3134 vxge_debug_entryexit(VXGE_TRACE
,
3135 "%s:%d Exiting...", __func__
, __LINE__
);
3139 * vxge_vlan_rx_register
3140 * @dev: net device pointer.
3143 * Vlan group registration
3146 vxge_vlan_rx_register(struct net_device
*dev
, struct vlan_group
*grp
)
3148 struct vxgedev
*vdev
;
3149 struct vxge_vpath
*vpath
;
3152 enum vxge_hw_status status
;
3155 vxge_debug_entryexit(VXGE_TRACE
, "%s:%d", __func__
, __LINE__
);
3157 vdev
= (struct vxgedev
*)netdev_priv(dev
);
3159 vpath
= &vdev
->vpaths
[0];
3160 if ((NULL
== grp
) && (vpath
->is_open
)) {
3161 /* Get the first vlan */
3162 status
= vxge_hw_vpath_vid_get(vpath
->handle
, &vid
);
3164 while (status
== VXGE_HW_OK
) {
3166 /* Delete this vlan from the vid table */
3167 for (vp
= 0; vp
< vdev
->no_of_vpath
; vp
++) {
3168 vpath
= &vdev
->vpaths
[vp
];
3169 if (!vpath
->is_open
)
3172 vxge_hw_vpath_vid_delete(vpath
->handle
, vid
);
3175 /* Get the next vlan to be deleted */
3176 vpath
= &vdev
->vpaths
[0];
3177 status
= vxge_hw_vpath_vid_get(vpath
->handle
, &vid
);
3183 for (i
= 0; i
< vdev
->no_of_vpath
; i
++) {
3184 if (vdev
->vpaths
[i
].is_configured
)
3185 vdev
->vpaths
[i
].ring
.vlgrp
= grp
;
3188 vxge_debug_entryexit(VXGE_TRACE
,
3189 "%s:%d Exiting...", __func__
, __LINE__
);
3193 * vxge_vlan_rx_add_vid
3194 * @dev: net device pointer.
3197 * Add the vlan id to the devices vlan id table
3200 vxge_vlan_rx_add_vid(struct net_device
*dev
, unsigned short vid
)
3202 struct vxgedev
*vdev
;
3203 struct vxge_vpath
*vpath
;
3206 vdev
= (struct vxgedev
*)netdev_priv(dev
);
3208 /* Add these vlan to the vid table */
3209 for (vp_id
= 0; vp_id
< vdev
->no_of_vpath
; vp_id
++) {
3210 vpath
= &vdev
->vpaths
[vp_id
];
3211 if (!vpath
->is_open
)
3213 vxge_hw_vpath_vid_add(vpath
->handle
, vid
);
3218 * vxge_vlan_rx_add_vid
3219 * @dev: net device pointer.
3222 * Remove the vlan id from the device's vlan id table
3225 vxge_vlan_rx_kill_vid(struct net_device
*dev
, unsigned short vid
)
3227 struct vxgedev
*vdev
;
3228 struct vxge_vpath
*vpath
;
3231 vxge_debug_entryexit(VXGE_TRACE
, "%s:%d", __func__
, __LINE__
);
3233 vdev
= (struct vxgedev
*)netdev_priv(dev
);
3235 vlan_group_set_device(vdev
->vlgrp
, vid
, NULL
);
3237 /* Delete this vlan from the vid table */
3238 for (vp_id
= 0; vp_id
< vdev
->no_of_vpath
; vp_id
++) {
3239 vpath
= &vdev
->vpaths
[vp_id
];
3240 if (!vpath
->is_open
)
3242 vxge_hw_vpath_vid_delete(vpath
->handle
, vid
);
3244 vxge_debug_entryexit(VXGE_TRACE
,
3245 "%s:%d Exiting...", __func__
, __LINE__
);
3248 static const struct net_device_ops vxge_netdev_ops
= {
3249 .ndo_open
= vxge_open
,
3250 .ndo_stop
= vxge_close
,
3251 .ndo_get_stats
= vxge_get_stats
,
3252 .ndo_start_xmit
= vxge_xmit
,
3253 .ndo_validate_addr
= eth_validate_addr
,
3254 .ndo_set_multicast_list
= vxge_set_multicast
,
3256 .ndo_do_ioctl
= vxge_ioctl
,
3258 .ndo_set_mac_address
= vxge_set_mac_addr
,
3259 .ndo_change_mtu
= vxge_change_mtu
,
3260 .ndo_vlan_rx_register
= vxge_vlan_rx_register
,
3261 .ndo_vlan_rx_kill_vid
= vxge_vlan_rx_kill_vid
,
3262 .ndo_vlan_rx_add_vid
= vxge_vlan_rx_add_vid
,
3264 .ndo_tx_timeout
= vxge_tx_watchdog
,
3265 #ifdef CONFIG_NET_POLL_CONTROLLER
3266 .ndo_poll_controller
= vxge_netpoll
,
3270 int __devinit
vxge_device_register(struct __vxge_hw_device
*hldev
,
3271 struct vxge_config
*config
,
3272 int high_dma
, int no_of_vpath
,
3273 struct vxgedev
**vdev_out
)
3275 struct net_device
*ndev
;
3276 enum vxge_hw_status status
= VXGE_HW_OK
;
3277 struct vxgedev
*vdev
;
3278 int i
, ret
= 0, no_of_queue
= 1;
3282 if (config
->tx_steering_type
== TX_MULTIQ_STEERING
)
3283 no_of_queue
= no_of_vpath
;
3285 ndev
= alloc_etherdev_mq(sizeof(struct vxgedev
),
3289 vxge_hw_device_trace_level_get(hldev
),
3290 "%s : device allocation failed", __func__
);
3295 vxge_debug_entryexit(
3296 vxge_hw_device_trace_level_get(hldev
),
3297 "%s: %s:%d Entering...",
3298 ndev
->name
, __func__
, __LINE__
);
3300 vdev
= netdev_priv(ndev
);
3301 memset(vdev
, 0, sizeof(struct vxgedev
));
3305 vdev
->pdev
= hldev
->pdev
;
3306 memcpy(&vdev
->config
, config
, sizeof(struct vxge_config
));
3307 vdev
->rx_csum
= 1; /* Enable Rx CSUM by default. */
3309 SET_NETDEV_DEV(ndev
, &vdev
->pdev
->dev
);
3311 ndev
->features
|= NETIF_F_HW_VLAN_TX
| NETIF_F_HW_VLAN_RX
|
3312 NETIF_F_HW_VLAN_FILTER
;
3313 /* Driver entry points */
3314 ndev
->irq
= vdev
->pdev
->irq
;
3315 ndev
->base_addr
= (unsigned long) hldev
->bar0
;
3317 ndev
->netdev_ops
= &vxge_netdev_ops
;
3319 ndev
->watchdog_timeo
= VXGE_LL_WATCH_DOG_TIMEOUT
;
3321 initialize_ethtool_ops(ndev
);
3323 /* Allocate memory for vpath */
3324 vdev
->vpaths
= kzalloc((sizeof(struct vxge_vpath
)) *
3325 no_of_vpath
, GFP_KERNEL
);
3326 if (!vdev
->vpaths
) {
3327 vxge_debug_init(VXGE_ERR
,
3328 "%s: vpath memory allocation failed",
3334 ndev
->features
|= NETIF_F_SG
;
3336 ndev
->features
|= NETIF_F_HW_CSUM
;
3337 vxge_debug_init(vxge_hw_device_trace_level_get(hldev
),
3338 "%s : checksuming enabled", __func__
);
3341 ndev
->features
|= NETIF_F_HIGHDMA
;
3342 vxge_debug_init(vxge_hw_device_trace_level_get(hldev
),
3343 "%s : using High DMA", __func__
);
3346 ndev
->features
|= NETIF_F_TSO
| NETIF_F_TSO6
;
3348 if (vdev
->config
.gro_enable
)
3349 ndev
->features
|= NETIF_F_GRO
;
3351 if (vdev
->config
.tx_steering_type
== TX_MULTIQ_STEERING
)
3352 ndev
->real_num_tx_queues
= no_of_vpath
;
3355 ndev
->features
|= NETIF_F_LLTX
;
3358 for (i
= 0; i
< no_of_vpath
; i
++)
3359 spin_lock_init(&vdev
->vpaths
[i
].fifo
.tx_lock
);
3361 if (register_netdev(ndev
)) {
3362 vxge_debug_init(vxge_hw_device_trace_level_get(hldev
),
3363 "%s: %s : device registration failed!",
3364 ndev
->name
, __func__
);
3369 /* Set the factory defined MAC address initially */
3370 ndev
->addr_len
= ETH_ALEN
;
3372 /* Make Link state as off at this point, when the Link change
3373 * interrupt comes the state will be automatically changed to
3376 netif_carrier_off(ndev
);
3378 vxge_debug_init(vxge_hw_device_trace_level_get(hldev
),
3379 "%s: Ethernet device registered",
3384 /* Resetting the Device stats */
3385 status
= vxge_hw_mrpcim_stats_access(
3387 VXGE_HW_STATS_OP_CLEAR_ALL_STATS
,
3392 if (status
== VXGE_HW_ERR_PRIVILAGED_OPEARATION
)
3394 vxge_hw_device_trace_level_get(hldev
),
3395 "%s: device stats clear returns"
3396 "VXGE_HW_ERR_PRIVILAGED_OPEARATION", ndev
->name
);
3398 vxge_debug_entryexit(vxge_hw_device_trace_level_get(hldev
),
3399 "%s: %s:%d Exiting...",
3400 ndev
->name
, __func__
, __LINE__
);
3404 kfree(vdev
->vpaths
);
3412 * vxge_device_unregister
3414 * This function will unregister and free network device
3417 vxge_device_unregister(struct __vxge_hw_device
*hldev
)
3419 struct vxgedev
*vdev
;
3420 struct net_device
*dev
;
3422 #if ((VXGE_DEBUG_INIT & VXGE_DEBUG_MASK) || \
3423 (VXGE_DEBUG_ENTRYEXIT & VXGE_DEBUG_MASK))
3428 vdev
= netdev_priv(dev
);
3429 #if ((VXGE_DEBUG_INIT & VXGE_DEBUG_MASK) || \
3430 (VXGE_DEBUG_ENTRYEXIT & VXGE_DEBUG_MASK))
3431 level_trace
= vdev
->level_trace
;
3433 vxge_debug_entryexit(level_trace
,
3434 "%s: %s:%d", vdev
->ndev
->name
, __func__
, __LINE__
);
3436 memcpy(buf
, vdev
->ndev
->name
, IFNAMSIZ
);
3438 /* in 2.6 will call stop() if device is up */
3439 unregister_netdev(dev
);
3441 flush_scheduled_work();
3443 vxge_debug_init(level_trace
, "%s: ethernet device unregistered", buf
);
3444 vxge_debug_entryexit(level_trace
,
3445 "%s: %s:%d Exiting...", buf
, __func__
, __LINE__
);
3449 * vxge_callback_crit_err
3451 * This function is called by the alarm handler in interrupt context.
3452 * Driver must analyze it based on the event type.
3455 vxge_callback_crit_err(struct __vxge_hw_device
*hldev
,
3456 enum vxge_hw_event type
, u64 vp_id
)
3458 struct net_device
*dev
= hldev
->ndev
;
3459 struct vxgedev
*vdev
= (struct vxgedev
*)netdev_priv(dev
);
3462 vxge_debug_entryexit(vdev
->level_trace
,
3463 "%s: %s:%d", vdev
->ndev
->name
, __func__
, __LINE__
);
3465 /* Note: This event type should be used for device wide
3466 * indications only - Serious errors, Slot freeze and critical errors
3468 vdev
->cric_err_event
= type
;
3470 for (vpath_idx
= 0; vpath_idx
< vdev
->no_of_vpath
; vpath_idx
++)
3471 if (vdev
->vpaths
[vpath_idx
].device_id
== vp_id
)
3474 if (!test_bit(__VXGE_STATE_RESET_CARD
, &vdev
->state
)) {
3475 if (type
== VXGE_HW_EVENT_SLOT_FREEZE
) {
3476 vxge_debug_init(VXGE_ERR
,
3477 "%s: Slot is frozen", vdev
->ndev
->name
);
3478 } else if (type
== VXGE_HW_EVENT_SERR
) {
3479 vxge_debug_init(VXGE_ERR
,
3480 "%s: Encountered Serious Error",
3482 } else if (type
== VXGE_HW_EVENT_CRITICAL_ERR
)
3483 vxge_debug_init(VXGE_ERR
,
3484 "%s: Encountered Critical Error",
3488 if ((type
== VXGE_HW_EVENT_SERR
) ||
3489 (type
== VXGE_HW_EVENT_SLOT_FREEZE
)) {
3490 if (unlikely(vdev
->exec_mode
))
3491 clear_bit(__VXGE_STATE_CARD_UP
, &vdev
->state
);
3492 } else if (type
== VXGE_HW_EVENT_CRITICAL_ERR
) {
3493 vxge_hw_device_mask_all(hldev
);
3494 if (unlikely(vdev
->exec_mode
))
3495 clear_bit(__VXGE_STATE_CARD_UP
, &vdev
->state
);
3496 } else if ((type
== VXGE_HW_EVENT_FIFO_ERR
) ||
3497 (type
== VXGE_HW_EVENT_VPATH_ERR
)) {
3499 if (unlikely(vdev
->exec_mode
))
3500 clear_bit(__VXGE_STATE_CARD_UP
, &vdev
->state
);
3502 /* check if this vpath is already set for reset */
3503 if (!test_and_set_bit(vpath_idx
, &vdev
->vp_reset
)) {
3505 /* disable interrupts for this vpath */
3506 vxge_vpath_intr_disable(vdev
, vpath_idx
);
3508 /* stop the queue for this vpath */
3509 vxge_stop_tx_queue(&vdev
->vpaths
[vpath_idx
].
3515 vxge_debug_entryexit(vdev
->level_trace
,
3516 "%s: %s:%d Exiting...",
3517 vdev
->ndev
->name
, __func__
, __LINE__
);
3520 static void verify_bandwidth(void)
3522 int i
, band_width
, total
= 0, equal_priority
= 0;
3524 /* 1. If user enters 0 for some fifo, give equal priority to all */
3525 for (i
= 0; i
< VXGE_HW_MAX_VIRTUAL_PATHS
; i
++) {
3526 if (bw_percentage
[i
] == 0) {
3532 if (!equal_priority
) {
3533 /* 2. If sum exceeds 100, give equal priority to all */
3534 for (i
= 0; i
< VXGE_HW_MAX_VIRTUAL_PATHS
; i
++) {
3535 if (bw_percentage
[i
] == 0xFF)
3538 total
+= bw_percentage
[i
];
3539 if (total
> VXGE_HW_VPATH_BANDWIDTH_MAX
) {
3546 if (!equal_priority
) {
3547 /* Is all the bandwidth consumed? */
3548 if (total
< VXGE_HW_VPATH_BANDWIDTH_MAX
) {
3549 if (i
< VXGE_HW_MAX_VIRTUAL_PATHS
) {
3550 /* Split rest of bw equally among next VPs*/
3552 (VXGE_HW_VPATH_BANDWIDTH_MAX
- total
) /
3553 (VXGE_HW_MAX_VIRTUAL_PATHS
- i
);
3554 if (band_width
< 2) /* min of 2% */
3557 for (; i
< VXGE_HW_MAX_VIRTUAL_PATHS
;
3563 } else if (i
< VXGE_HW_MAX_VIRTUAL_PATHS
)
3567 if (equal_priority
) {
3568 vxge_debug_init(VXGE_ERR
,
3569 "%s: Assigning equal bandwidth to all the vpaths",
3571 bw_percentage
[0] = VXGE_HW_VPATH_BANDWIDTH_MAX
/
3572 VXGE_HW_MAX_VIRTUAL_PATHS
;
3573 for (i
= 1; i
< VXGE_HW_MAX_VIRTUAL_PATHS
; i
++)
3574 bw_percentage
[i
] = bw_percentage
[0];
3581 * Vpath configuration
3583 static int __devinit
vxge_config_vpaths(
3584 struct vxge_hw_device_config
*device_config
,
3585 u64 vpath_mask
, struct vxge_config
*config_param
)
3587 int i
, no_of_vpaths
= 0, default_no_vpath
= 0, temp
;
3588 u32 txdl_size
, txdl_per_memblock
;
3590 temp
= driver_config
->vpath_per_dev
;
3591 if ((driver_config
->vpath_per_dev
== VXGE_USE_DEFAULT
) &&
3592 (max_config_dev
== VXGE_MAX_CONFIG_DEV
)) {
3593 /* No more CPU. Return vpath number as zero.*/
3594 if (driver_config
->g_no_cpus
== -1)
3597 if (!driver_config
->g_no_cpus
)
3598 driver_config
->g_no_cpus
= num_online_cpus();
3600 driver_config
->vpath_per_dev
= driver_config
->g_no_cpus
>> 1;
3601 if (!driver_config
->vpath_per_dev
)
3602 driver_config
->vpath_per_dev
= 1;
3604 for (i
= 0; i
< VXGE_HW_MAX_VIRTUAL_PATHS
; i
++)
3605 if (!vxge_bVALn(vpath_mask
, i
, 1))
3609 if (default_no_vpath
< driver_config
->vpath_per_dev
)
3610 driver_config
->vpath_per_dev
= default_no_vpath
;
3612 driver_config
->g_no_cpus
= driver_config
->g_no_cpus
-
3613 (driver_config
->vpath_per_dev
* 2);
3614 if (driver_config
->g_no_cpus
<= 0)
3615 driver_config
->g_no_cpus
= -1;
3618 if (driver_config
->vpath_per_dev
== 1) {
3619 vxge_debug_ll_config(VXGE_TRACE
,
3620 "%s: Disable tx and rx steering, "
3621 "as single vpath is configured", VXGE_DRIVER_NAME
);
3622 config_param
->rth_steering
= NO_STEERING
;
3623 config_param
->tx_steering_type
= NO_STEERING
;
3624 device_config
->rth_en
= 0;
3627 /* configure bandwidth */
3628 for (i
= 0; i
< VXGE_HW_MAX_VIRTUAL_PATHS
; i
++)
3629 device_config
->vp_config
[i
].min_bandwidth
= bw_percentage
[i
];
3631 for (i
= 0; i
< VXGE_HW_MAX_VIRTUAL_PATHS
; i
++) {
3632 device_config
->vp_config
[i
].vp_id
= i
;
3633 device_config
->vp_config
[i
].mtu
= VXGE_HW_DEFAULT_MTU
;
3634 if (no_of_vpaths
< driver_config
->vpath_per_dev
) {
3635 if (!vxge_bVALn(vpath_mask
, i
, 1)) {
3636 vxge_debug_ll_config(VXGE_TRACE
,
3637 "%s: vpath: %d is not available",
3638 VXGE_DRIVER_NAME
, i
);
3641 vxge_debug_ll_config(VXGE_TRACE
,
3642 "%s: vpath: %d available",
3643 VXGE_DRIVER_NAME
, i
);
3647 vxge_debug_ll_config(VXGE_TRACE
,
3648 "%s: vpath: %d is not configured, "
3649 "max_config_vpath exceeded",
3650 VXGE_DRIVER_NAME
, i
);
3654 /* Configure Tx fifo's */
3655 device_config
->vp_config
[i
].fifo
.enable
=
3656 VXGE_HW_FIFO_ENABLE
;
3657 device_config
->vp_config
[i
].fifo
.max_frags
=
3659 device_config
->vp_config
[i
].fifo
.memblock_size
=
3660 VXGE_HW_MIN_FIFO_MEMBLOCK_SIZE
;
3662 txdl_size
= MAX_SKB_FRAGS
* sizeof(struct vxge_hw_fifo_txd
);
3663 txdl_per_memblock
= VXGE_HW_MIN_FIFO_MEMBLOCK_SIZE
/ txdl_size
;
3665 device_config
->vp_config
[i
].fifo
.fifo_blocks
=
3666 ((VXGE_DEF_FIFO_LENGTH
- 1) / txdl_per_memblock
) + 1;
3668 device_config
->vp_config
[i
].fifo
.intr
=
3669 VXGE_HW_FIFO_QUEUE_INTR_DISABLE
;
3671 /* Configure tti properties */
3672 device_config
->vp_config
[i
].tti
.intr_enable
=
3673 VXGE_HW_TIM_INTR_ENABLE
;
3675 device_config
->vp_config
[i
].tti
.btimer_val
=
3676 (VXGE_TTI_BTIMER_VAL
* 1000) / 272;
3678 device_config
->vp_config
[i
].tti
.timer_ac_en
=
3679 VXGE_HW_TIM_TIMER_AC_ENABLE
;
3681 /* For msi-x with napi (each vector
3682 has a handler of its own) -
3683 Set CI to OFF for all vpaths */
3684 device_config
->vp_config
[i
].tti
.timer_ci_en
=
3685 VXGE_HW_TIM_TIMER_CI_DISABLE
;
3687 device_config
->vp_config
[i
].tti
.timer_ri_en
=
3688 VXGE_HW_TIM_TIMER_RI_DISABLE
;
3690 device_config
->vp_config
[i
].tti
.util_sel
=
3691 VXGE_HW_TIM_UTIL_SEL_LEGACY_TX_NET_UTIL
;
3693 device_config
->vp_config
[i
].tti
.ltimer_val
=
3694 (VXGE_TTI_LTIMER_VAL
* 1000) / 272;
3696 device_config
->vp_config
[i
].tti
.rtimer_val
=
3697 (VXGE_TTI_RTIMER_VAL
* 1000) / 272;
3699 device_config
->vp_config
[i
].tti
.urange_a
= TTI_TX_URANGE_A
;
3700 device_config
->vp_config
[i
].tti
.urange_b
= TTI_TX_URANGE_B
;
3701 device_config
->vp_config
[i
].tti
.urange_c
= TTI_TX_URANGE_C
;
3702 device_config
->vp_config
[i
].tti
.uec_a
= TTI_TX_UFC_A
;
3703 device_config
->vp_config
[i
].tti
.uec_b
= TTI_TX_UFC_B
;
3704 device_config
->vp_config
[i
].tti
.uec_c
= TTI_TX_UFC_C
;
3705 device_config
->vp_config
[i
].tti
.uec_d
= TTI_TX_UFC_D
;
3707 /* Configure Rx rings */
3708 device_config
->vp_config
[i
].ring
.enable
=
3709 VXGE_HW_RING_ENABLE
;
3711 device_config
->vp_config
[i
].ring
.ring_blocks
=
3712 VXGE_HW_DEF_RING_BLOCKS
;
3713 device_config
->vp_config
[i
].ring
.buffer_mode
=
3714 VXGE_HW_RING_RXD_BUFFER_MODE_1
;
3715 device_config
->vp_config
[i
].ring
.rxds_limit
=
3716 VXGE_HW_DEF_RING_RXDS_LIMIT
;
3717 device_config
->vp_config
[i
].ring
.scatter_mode
=
3718 VXGE_HW_RING_SCATTER_MODE_A
;
3720 /* Configure rti properties */
3721 device_config
->vp_config
[i
].rti
.intr_enable
=
3722 VXGE_HW_TIM_INTR_ENABLE
;
3724 device_config
->vp_config
[i
].rti
.btimer_val
=
3725 (VXGE_RTI_BTIMER_VAL
* 1000)/272;
3727 device_config
->vp_config
[i
].rti
.timer_ac_en
=
3728 VXGE_HW_TIM_TIMER_AC_ENABLE
;
3730 device_config
->vp_config
[i
].rti
.timer_ci_en
=
3731 VXGE_HW_TIM_TIMER_CI_DISABLE
;
3733 device_config
->vp_config
[i
].rti
.timer_ri_en
=
3734 VXGE_HW_TIM_TIMER_RI_DISABLE
;
3736 device_config
->vp_config
[i
].rti
.util_sel
=
3737 VXGE_HW_TIM_UTIL_SEL_LEGACY_RX_NET_UTIL
;
3739 device_config
->vp_config
[i
].rti
.urange_a
=
3741 device_config
->vp_config
[i
].rti
.urange_b
=
3743 device_config
->vp_config
[i
].rti
.urange_c
=
3745 device_config
->vp_config
[i
].rti
.uec_a
= RTI_RX_UFC_A
;
3746 device_config
->vp_config
[i
].rti
.uec_b
= RTI_RX_UFC_B
;
3747 device_config
->vp_config
[i
].rti
.uec_c
= RTI_RX_UFC_C
;
3748 device_config
->vp_config
[i
].rti
.uec_d
= RTI_RX_UFC_D
;
3750 device_config
->vp_config
[i
].rti
.rtimer_val
=
3751 (VXGE_RTI_RTIMER_VAL
* 1000) / 272;
3753 device_config
->vp_config
[i
].rti
.ltimer_val
=
3754 (VXGE_RTI_LTIMER_VAL
* 1000) / 272;
3756 device_config
->vp_config
[i
].rpa_strip_vlan_tag
=
3760 driver_config
->vpath_per_dev
= temp
;
3761 return no_of_vpaths
;
3764 /* initialize device configuratrions */
3765 static void __devinit
vxge_device_config_init(
3766 struct vxge_hw_device_config
*device_config
,
3769 /* Used for CQRQ/SRQ. */
3770 device_config
->dma_blockpool_initial
=
3771 VXGE_HW_INITIAL_DMA_BLOCK_POOL_SIZE
;
3773 device_config
->dma_blockpool_max
=
3774 VXGE_HW_MAX_DMA_BLOCK_POOL_SIZE
;
3776 if (max_mac_vpath
> VXGE_MAX_MAC_ADDR_COUNT
)
3777 max_mac_vpath
= VXGE_MAX_MAC_ADDR_COUNT
;
3779 #ifndef CONFIG_PCI_MSI
3780 vxge_debug_init(VXGE_ERR
,
3781 "%s: This Kernel does not support "
3782 "MSI-X. Defaulting to INTA", VXGE_DRIVER_NAME
);
3786 /* Configure whether MSI-X or IRQL. */
3787 switch (*intr_type
) {
3789 device_config
->intr_mode
= VXGE_HW_INTR_MODE_IRQLINE
;
3793 device_config
->intr_mode
= VXGE_HW_INTR_MODE_MSIX
;
3796 /* Timer period between device poll */
3797 device_config
->device_poll_millis
= VXGE_TIMER_DELAY
;
3799 /* Configure mac based steering. */
3800 device_config
->rts_mac_en
= addr_learn_en
;
3802 /* Configure Vpaths */
3803 device_config
->rth_it_type
= VXGE_HW_RTH_IT_TYPE_MULTI_IT
;
3805 vxge_debug_ll_config(VXGE_TRACE
, "%s : Device Config Params ",
3807 vxge_debug_ll_config(VXGE_TRACE
, "dma_blockpool_initial : %d",
3808 device_config
->dma_blockpool_initial
);
3809 vxge_debug_ll_config(VXGE_TRACE
, "dma_blockpool_max : %d",
3810 device_config
->dma_blockpool_max
);
3811 vxge_debug_ll_config(VXGE_TRACE
, "intr_mode : %d",
3812 device_config
->intr_mode
);
3813 vxge_debug_ll_config(VXGE_TRACE
, "device_poll_millis : %d",
3814 device_config
->device_poll_millis
);
3815 vxge_debug_ll_config(VXGE_TRACE
, "rts_mac_en : %d",
3816 device_config
->rts_mac_en
);
3817 vxge_debug_ll_config(VXGE_TRACE
, "rth_en : %d",
3818 device_config
->rth_en
);
3819 vxge_debug_ll_config(VXGE_TRACE
, "rth_it_type : %d",
3820 device_config
->rth_it_type
);
3823 static void __devinit
vxge_print_parm(struct vxgedev
*vdev
, u64 vpath_mask
)
3827 vxge_debug_init(VXGE_TRACE
,
3828 "%s: %d Vpath(s) opened",
3829 vdev
->ndev
->name
, vdev
->no_of_vpath
);
3831 switch (vdev
->config
.intr_type
) {
3833 vxge_debug_init(VXGE_TRACE
,
3834 "%s: Interrupt type INTA", vdev
->ndev
->name
);
3838 vxge_debug_init(VXGE_TRACE
,
3839 "%s: Interrupt type MSI-X", vdev
->ndev
->name
);
3843 if (vdev
->config
.rth_steering
) {
3844 vxge_debug_init(VXGE_TRACE
,
3845 "%s: RTH steering enabled for TCP_IPV4",
3848 vxge_debug_init(VXGE_TRACE
,
3849 "%s: RTH steering disabled", vdev
->ndev
->name
);
3852 switch (vdev
->config
.tx_steering_type
) {
3854 vxge_debug_init(VXGE_TRACE
,
3855 "%s: Tx steering disabled", vdev
->ndev
->name
);
3857 case TX_PRIORITY_STEERING
:
3858 vxge_debug_init(VXGE_TRACE
,
3859 "%s: Unsupported tx steering option",
3861 vxge_debug_init(VXGE_TRACE
,
3862 "%s: Tx steering disabled", vdev
->ndev
->name
);
3863 vdev
->config
.tx_steering_type
= 0;
3865 case TX_VLAN_STEERING
:
3866 vxge_debug_init(VXGE_TRACE
,
3867 "%s: Unsupported tx steering option",
3869 vxge_debug_init(VXGE_TRACE
,
3870 "%s: Tx steering disabled", vdev
->ndev
->name
);
3871 vdev
->config
.tx_steering_type
= 0;
3873 case TX_MULTIQ_STEERING
:
3874 vxge_debug_init(VXGE_TRACE
,
3875 "%s: Tx multiqueue steering enabled",
3878 case TX_PORT_STEERING
:
3879 vxge_debug_init(VXGE_TRACE
,
3880 "%s: Tx port steering enabled",
3884 vxge_debug_init(VXGE_ERR
,
3885 "%s: Unsupported tx steering type",
3887 vxge_debug_init(VXGE_TRACE
,
3888 "%s: Tx steering disabled", vdev
->ndev
->name
);
3889 vdev
->config
.tx_steering_type
= 0;
3892 if (vdev
->config
.gro_enable
) {
3893 vxge_debug_init(VXGE_ERR
,
3894 "%s: Generic receive offload enabled",
3897 vxge_debug_init(VXGE_TRACE
,
3898 "%s: Generic receive offload disabled",
3901 if (vdev
->config
.addr_learn_en
)
3902 vxge_debug_init(VXGE_TRACE
,
3903 "%s: MAC Address learning enabled", vdev
->ndev
->name
);
3905 vxge_debug_init(VXGE_TRACE
,
3906 "%s: Rx doorbell mode enabled", vdev
->ndev
->name
);
3908 for (i
= 0; i
< VXGE_HW_MAX_VIRTUAL_PATHS
; i
++) {
3909 if (!vxge_bVALn(vpath_mask
, i
, 1))
3911 vxge_debug_ll_config(VXGE_TRACE
,
3912 "%s: MTU size - %d", vdev
->ndev
->name
,
3913 ((struct __vxge_hw_device
*)(vdev
->devh
))->
3914 config
.vp_config
[i
].mtu
);
3915 vxge_debug_init(VXGE_TRACE
,
3916 "%s: VLAN tag stripping %s", vdev
->ndev
->name
,
3917 ((struct __vxge_hw_device
*)(vdev
->devh
))->
3918 config
.vp_config
[i
].rpa_strip_vlan_tag
3919 ? "Enabled" : "Disabled");
3920 vxge_debug_init(VXGE_TRACE
,
3921 "%s: Ring blocks : %d", vdev
->ndev
->name
,
3922 ((struct __vxge_hw_device
*)(vdev
->devh
))->
3923 config
.vp_config
[i
].ring
.ring_blocks
);
3924 vxge_debug_init(VXGE_TRACE
,
3925 "%s: Fifo blocks : %d", vdev
->ndev
->name
,
3926 ((struct __vxge_hw_device
*)(vdev
->devh
))->
3927 config
.vp_config
[i
].fifo
.fifo_blocks
);
3928 vxge_debug_ll_config(VXGE_TRACE
,
3929 "%s: Max frags : %d", vdev
->ndev
->name
,
3930 ((struct __vxge_hw_device
*)(vdev
->devh
))->
3931 config
.vp_config
[i
].fifo
.max_frags
);
3938 * vxge_pm_suspend - vxge power management suspend entry point
3941 static int vxge_pm_suspend(struct pci_dev
*pdev
, pm_message_t state
)
3946 * vxge_pm_resume - vxge power management resume entry point
3949 static int vxge_pm_resume(struct pci_dev
*pdev
)
3957 * vxge_io_error_detected - called when PCI error is detected
3958 * @pdev: Pointer to PCI device
3959 * @state: The current pci connection state
3961 * This function is called after a PCI bus error affecting
3962 * this device has been detected.
3964 static pci_ers_result_t
vxge_io_error_detected(struct pci_dev
*pdev
,
3965 pci_channel_state_t state
)
3967 struct __vxge_hw_device
*hldev
=
3968 (struct __vxge_hw_device
*) pci_get_drvdata(pdev
);
3969 struct net_device
*netdev
= hldev
->ndev
;
3971 netif_device_detach(netdev
);
3973 if (state
== pci_channel_io_perm_failure
)
3974 return PCI_ERS_RESULT_DISCONNECT
;
3976 if (netif_running(netdev
)) {
3977 /* Bring down the card, while avoiding PCI I/O */
3978 do_vxge_close(netdev
, 0);
3981 pci_disable_device(pdev
);
3983 return PCI_ERS_RESULT_NEED_RESET
;
3987 * vxge_io_slot_reset - called after the pci bus has been reset.
3988 * @pdev: Pointer to PCI device
3990 * Restart the card from scratch, as if from a cold-boot.
3991 * At this point, the card has exprienced a hard reset,
3992 * followed by fixups by BIOS, and has its config space
3993 * set up identically to what it was at cold boot.
3995 static pci_ers_result_t
vxge_io_slot_reset(struct pci_dev
*pdev
)
3997 struct __vxge_hw_device
*hldev
=
3998 (struct __vxge_hw_device
*) pci_get_drvdata(pdev
);
3999 struct net_device
*netdev
= hldev
->ndev
;
4001 struct vxgedev
*vdev
= netdev_priv(netdev
);
4003 if (pci_enable_device(pdev
)) {
4004 printk(KERN_ERR
"%s: "
4005 "Cannot re-enable device after reset\n",
4007 return PCI_ERS_RESULT_DISCONNECT
;
4010 pci_set_master(pdev
);
4013 return PCI_ERS_RESULT_RECOVERED
;
4017 * vxge_io_resume - called when traffic can start flowing again.
4018 * @pdev: Pointer to PCI device
4020 * This callback is called when the error recovery driver tells
4021 * us that its OK to resume normal operation.
4023 static void vxge_io_resume(struct pci_dev
*pdev
)
4025 struct __vxge_hw_device
*hldev
=
4026 (struct __vxge_hw_device
*) pci_get_drvdata(pdev
);
4027 struct net_device
*netdev
= hldev
->ndev
;
4029 if (netif_running(netdev
)) {
4030 if (vxge_open(netdev
)) {
4031 printk(KERN_ERR
"%s: "
4032 "Can't bring device back up after reset\n",
4038 netif_device_attach(netdev
);
4043 * @pdev : structure containing the PCI related information of the device.
4044 * @pre: List of PCI devices supported by the driver listed in vxge_id_table.
4046 * This function is called when a new PCI device gets detected and initializes
4049 * returns 0 on success and negative on failure.
4052 static int __devinit
4053 vxge_probe(struct pci_dev
*pdev
, const struct pci_device_id
*pre
)
4055 struct __vxge_hw_device
*hldev
;
4056 enum vxge_hw_status status
;
4060 struct vxgedev
*vdev
;
4061 struct vxge_config ll_config
;
4062 struct vxge_hw_device_config
*device_config
= NULL
;
4063 struct vxge_hw_device_attr attr
;
4064 int i
, j
, no_of_vpath
= 0, max_vpath_supported
= 0;
4066 struct vxge_mac_addrs
*entry
;
4067 static int bus
= -1, device
= -1;
4070 vxge_debug_entryexit(VXGE_TRACE
, "%s:%d", __func__
, __LINE__
);
4073 if (bus
!= pdev
->bus
->number
)
4075 if (device
!= PCI_SLOT(pdev
->devfn
))
4078 bus
= pdev
->bus
->number
;
4079 device
= PCI_SLOT(pdev
->devfn
);
4082 if (driver_config
->config_dev_cnt
&&
4083 (driver_config
->config_dev_cnt
!=
4084 driver_config
->total_dev_cnt
))
4085 vxge_debug_init(VXGE_ERR
,
4086 "%s: Configured %d of %d devices",
4088 driver_config
->config_dev_cnt
,
4089 driver_config
->total_dev_cnt
);
4090 driver_config
->config_dev_cnt
= 0;
4091 driver_config
->total_dev_cnt
= 0;
4092 driver_config
->g_no_cpus
= 0;
4093 driver_config
->vpath_per_dev
= max_config_vpath
;
4096 driver_config
->total_dev_cnt
++;
4097 if (++driver_config
->config_dev_cnt
> max_config_dev
) {
4102 device_config
= kzalloc(sizeof(struct vxge_hw_device_config
),
4104 if (!device_config
) {
4106 vxge_debug_init(VXGE_ERR
,
4107 "device_config : malloc failed %s %d",
4108 __FILE__
, __LINE__
);
4112 memset(&ll_config
, 0, sizeof(struct vxge_config
));
4113 ll_config
.tx_steering_type
= TX_MULTIQ_STEERING
;
4114 ll_config
.intr_type
= MSI_X
;
4115 ll_config
.napi_weight
= NEW_NAPI_WEIGHT
;
4116 ll_config
.rth_steering
= RTH_STEERING
;
4118 /* get the default configuration parameters */
4119 vxge_hw_device_config_default_get(device_config
);
4121 /* initialize configuration parameters */
4122 vxge_device_config_init(device_config
, &ll_config
.intr_type
);
4124 ret
= pci_enable_device(pdev
);
4126 vxge_debug_init(VXGE_ERR
,
4127 "%s : can not enable PCI device", __func__
);
4131 if (!pci_set_dma_mask(pdev
, 0xffffffffffffffffULL
)) {
4132 vxge_debug_ll_config(VXGE_TRACE
,
4133 "%s : using 64bit DMA", __func__
);
4137 if (pci_set_consistent_dma_mask(pdev
,
4138 0xffffffffffffffffULL
)) {
4139 vxge_debug_init(VXGE_ERR
,
4140 "%s : unable to obtain 64bit DMA for "
4141 "consistent allocations", __func__
);
4145 } else if (!pci_set_dma_mask(pdev
, 0xffffffffUL
)) {
4146 vxge_debug_ll_config(VXGE_TRACE
,
4147 "%s : using 32bit DMA", __func__
);
4153 if (pci_request_regions(pdev
, VXGE_DRIVER_NAME
)) {
4154 vxge_debug_init(VXGE_ERR
,
4155 "%s : request regions failed", __func__
);
4160 pci_set_master(pdev
);
4162 attr
.bar0
= pci_ioremap_bar(pdev
, 0);
4164 vxge_debug_init(VXGE_ERR
,
4165 "%s : cannot remap io memory bar0", __func__
);
4169 vxge_debug_ll_config(VXGE_TRACE
,
4170 "pci ioremap bar0: %p:0x%llx",
4172 (unsigned long long)pci_resource_start(pdev
, 0));
4174 status
= vxge_hw_device_hw_info_get(attr
.bar0
,
4175 &ll_config
.device_hw_info
);
4176 if (status
!= VXGE_HW_OK
) {
4177 vxge_debug_init(VXGE_ERR
,
4178 "%s: Reading of hardware info failed."
4179 "Please try upgrading the firmware.", VXGE_DRIVER_NAME
);
4184 if (ll_config
.device_hw_info
.fw_version
.major
!=
4185 VXGE_DRIVER_FW_VERSION_MAJOR
) {
4186 vxge_debug_init(VXGE_ERR
,
4187 "%s: Incorrect firmware version."
4188 "Please upgrade the firmware to version 1.x.x",
4194 vpath_mask
= ll_config
.device_hw_info
.vpath_mask
;
4195 if (vpath_mask
== 0) {
4196 vxge_debug_ll_config(VXGE_TRACE
,
4197 "%s: No vpaths available in device", VXGE_DRIVER_NAME
);
4202 vxge_debug_ll_config(VXGE_TRACE
,
4203 "%s:%d Vpath mask = %llx", __func__
, __LINE__
,
4204 (unsigned long long)vpath_mask
);
4206 /* Check how many vpaths are available */
4207 for (i
= 0; i
< VXGE_HW_MAX_VIRTUAL_PATHS
; i
++) {
4208 if (!((vpath_mask
) & vxge_mBIT(i
)))
4210 max_vpath_supported
++;
4213 /* Enable SRIOV mode, if firmware has SRIOV support and if it is a PF */
4214 if ((VXGE_HW_FUNCTION_MODE_SRIOV
==
4215 ll_config
.device_hw_info
.function_mode
) &&
4216 (max_config_dev
> 1) && (pdev
->is_physfn
)) {
4217 ret
= pci_enable_sriov(pdev
, max_config_dev
- 1);
4219 vxge_debug_ll_config(VXGE_ERR
,
4220 "Failed to enable SRIOV: %d \n", ret
);
4224 * Configure vpaths and get driver configured number of vpaths
4225 * which is less than or equal to the maximum vpaths per function.
4227 no_of_vpath
= vxge_config_vpaths(device_config
, vpath_mask
, &ll_config
);
4229 vxge_debug_ll_config(VXGE_ERR
,
4230 "%s: No more vpaths to configure", VXGE_DRIVER_NAME
);
4235 /* Setting driver callbacks */
4236 attr
.uld_callbacks
.link_up
= vxge_callback_link_up
;
4237 attr
.uld_callbacks
.link_down
= vxge_callback_link_down
;
4238 attr
.uld_callbacks
.crit_err
= vxge_callback_crit_err
;
4240 status
= vxge_hw_device_initialize(&hldev
, &attr
, device_config
);
4241 if (status
!= VXGE_HW_OK
) {
4242 vxge_debug_init(VXGE_ERR
,
4243 "Failed to initialize device (%d)", status
);
4248 vxge_hw_device_debug_set(hldev
, VXGE_ERR
, VXGE_COMPONENT_LL
);
4250 /* set private device info */
4251 pci_set_drvdata(pdev
, hldev
);
4253 ll_config
.gro_enable
= VXGE_GRO_ALWAYS_AGGREGATE
;
4254 ll_config
.fifo_indicate_max_pkts
= VXGE_FIFO_INDICATE_MAX_PKTS
;
4255 ll_config
.addr_learn_en
= addr_learn_en
;
4256 ll_config
.rth_algorithm
= RTH_ALG_JENKINS
;
4257 ll_config
.rth_hash_type_tcpipv4
= VXGE_HW_RING_HASH_TYPE_TCP_IPV4
;
4258 ll_config
.rth_hash_type_ipv4
= VXGE_HW_RING_HASH_TYPE_NONE
;
4259 ll_config
.rth_hash_type_tcpipv6
= VXGE_HW_RING_HASH_TYPE_NONE
;
4260 ll_config
.rth_hash_type_ipv6
= VXGE_HW_RING_HASH_TYPE_NONE
;
4261 ll_config
.rth_hash_type_tcpipv6ex
= VXGE_HW_RING_HASH_TYPE_NONE
;
4262 ll_config
.rth_hash_type_ipv6ex
= VXGE_HW_RING_HASH_TYPE_NONE
;
4263 ll_config
.rth_bkt_sz
= RTH_BUCKET_SIZE
;
4264 ll_config
.tx_pause_enable
= VXGE_PAUSE_CTRL_ENABLE
;
4265 ll_config
.rx_pause_enable
= VXGE_PAUSE_CTRL_ENABLE
;
4267 if (vxge_device_register(hldev
, &ll_config
, high_dma
, no_of_vpath
,
4273 vxge_hw_device_debug_set(hldev
, VXGE_TRACE
, VXGE_COMPONENT_LL
);
4274 VXGE_COPY_DEBUG_INFO_TO_LL(vdev
, vxge_hw_device_error_level_get(hldev
),
4275 vxge_hw_device_trace_level_get(hldev
));
4277 /* set private HW device info */
4278 hldev
->ndev
= vdev
->ndev
;
4279 vdev
->mtu
= VXGE_HW_DEFAULT_MTU
;
4280 vdev
->bar0
= attr
.bar0
;
4281 vdev
->max_vpath_supported
= max_vpath_supported
;
4282 vdev
->no_of_vpath
= no_of_vpath
;
4284 /* Virtual Path count */
4285 for (i
= 0, j
= 0; i
< VXGE_HW_MAX_VIRTUAL_PATHS
; i
++) {
4286 if (!vxge_bVALn(vpath_mask
, i
, 1))
4288 if (j
>= vdev
->no_of_vpath
)
4291 vdev
->vpaths
[j
].is_configured
= 1;
4292 vdev
->vpaths
[j
].device_id
= i
;
4293 vdev
->vpaths
[j
].fifo
.driver_id
= j
;
4294 vdev
->vpaths
[j
].ring
.driver_id
= j
;
4295 vdev
->vpaths
[j
].vdev
= vdev
;
4296 vdev
->vpaths
[j
].max_mac_addr_cnt
= max_mac_vpath
;
4297 memcpy((u8
*)vdev
->vpaths
[j
].macaddr
,
4298 (u8
*)ll_config
.device_hw_info
.mac_addrs
[i
],
4301 /* Initialize the mac address list header */
4302 INIT_LIST_HEAD(&vdev
->vpaths
[j
].mac_addr_list
);
4304 vdev
->vpaths
[j
].mac_addr_cnt
= 0;
4305 vdev
->vpaths
[j
].mcast_addr_cnt
= 0;
4308 vdev
->exec_mode
= VXGE_EXEC_MODE_DISABLE
;
4309 vdev
->max_config_port
= max_config_port
;
4311 vdev
->vlan_tag_strip
= vlan_tag_strip
;
4313 /* map the hashing selector table to the configured vpaths */
4314 for (i
= 0; i
< vdev
->no_of_vpath
; i
++)
4315 vdev
->vpath_selector
[i
] = vpath_selector
[i
];
4317 macaddr
= (u8
*)vdev
->vpaths
[0].macaddr
;
4319 ll_config
.device_hw_info
.serial_number
[VXGE_HW_INFO_LEN
- 1] = '\0';
4320 ll_config
.device_hw_info
.product_desc
[VXGE_HW_INFO_LEN
- 1] = '\0';
4321 ll_config
.device_hw_info
.part_number
[VXGE_HW_INFO_LEN
- 1] = '\0';
4323 vxge_debug_init(VXGE_TRACE
, "%s: SERIAL NUMBER: %s",
4324 vdev
->ndev
->name
, ll_config
.device_hw_info
.serial_number
);
4326 vxge_debug_init(VXGE_TRACE
, "%s: PART NUMBER: %s",
4327 vdev
->ndev
->name
, ll_config
.device_hw_info
.part_number
);
4329 vxge_debug_init(VXGE_TRACE
, "%s: Neterion %s Server Adapter",
4330 vdev
->ndev
->name
, ll_config
.device_hw_info
.product_desc
);
4332 vxge_debug_init(VXGE_TRACE
,
4333 "%s: MAC ADDR: %02X:%02X:%02X:%02X:%02X:%02X",
4334 vdev
->ndev
->name
, macaddr
[0], macaddr
[1], macaddr
[2],
4335 macaddr
[3], macaddr
[4], macaddr
[5]);
4337 vxge_debug_init(VXGE_TRACE
, "%s: Link Width x%d",
4338 vdev
->ndev
->name
, vxge_hw_device_link_width_get(hldev
));
4340 vxge_debug_init(VXGE_TRACE
,
4341 "%s: Firmware version : %s Date : %s", vdev
->ndev
->name
,
4342 ll_config
.device_hw_info
.fw_version
.version
,
4343 ll_config
.device_hw_info
.fw_date
.date
);
4346 switch (ll_config
.device_hw_info
.function_mode
) {
4347 case VXGE_HW_FUNCTION_MODE_SINGLE_FUNCTION
:
4348 vxge_debug_init(VXGE_TRACE
,
4349 "%s: Single Function Mode Enabled", vdev
->ndev
->name
);
4351 case VXGE_HW_FUNCTION_MODE_MULTI_FUNCTION
:
4352 vxge_debug_init(VXGE_TRACE
,
4353 "%s: Multi Function Mode Enabled", vdev
->ndev
->name
);
4355 case VXGE_HW_FUNCTION_MODE_SRIOV
:
4356 vxge_debug_init(VXGE_TRACE
,
4357 "%s: Single Root IOV Mode Enabled", vdev
->ndev
->name
);
4359 case VXGE_HW_FUNCTION_MODE_MRIOV
:
4360 vxge_debug_init(VXGE_TRACE
,
4361 "%s: Multi Root IOV Mode Enabled", vdev
->ndev
->name
);
4366 vxge_print_parm(vdev
, vpath_mask
);
4368 /* Store the fw version for ethttool option */
4369 strcpy(vdev
->fw_version
, ll_config
.device_hw_info
.fw_version
.version
);
4370 memcpy(vdev
->ndev
->dev_addr
, (u8
*)vdev
->vpaths
[0].macaddr
, ETH_ALEN
);
4371 memcpy(vdev
->ndev
->perm_addr
, vdev
->ndev
->dev_addr
, ETH_ALEN
);
4373 /* Copy the station mac address to the list */
4374 for (i
= 0; i
< vdev
->no_of_vpath
; i
++) {
4375 entry
= (struct vxge_mac_addrs
*)
4376 kzalloc(sizeof(struct vxge_mac_addrs
),
4378 if (NULL
== entry
) {
4379 vxge_debug_init(VXGE_ERR
,
4380 "%s: mac_addr_list : memory allocation failed",
4385 macaddr
= (u8
*)&entry
->macaddr
;
4386 memcpy(macaddr
, vdev
->ndev
->dev_addr
, ETH_ALEN
);
4387 list_add(&entry
->item
, &vdev
->vpaths
[i
].mac_addr_list
);
4388 vdev
->vpaths
[i
].mac_addr_cnt
= 1;
4391 kfree(device_config
);
4392 vxge_debug_entryexit(VXGE_TRACE
, "%s: %s:%d Exiting...",
4393 vdev
->ndev
->name
, __func__
, __LINE__
);
4395 vxge_hw_device_debug_set(hldev
, VXGE_ERR
, VXGE_COMPONENT_LL
);
4396 VXGE_COPY_DEBUG_INFO_TO_LL(vdev
, vxge_hw_device_error_level_get(hldev
),
4397 vxge_hw_device_trace_level_get(hldev
));
4402 for (i
= 0; i
< vdev
->no_of_vpath
; i
++)
4403 vxge_free_mac_add_list(&vdev
->vpaths
[i
]);
4405 vxge_device_unregister(hldev
);
4407 pci_disable_sriov(pdev
);
4408 vxge_hw_device_terminate(hldev
);
4412 pci_release_regions(pdev
);
4414 pci_disable_device(pdev
);
4416 kfree(device_config
);
4417 driver_config
->config_dev_cnt
--;
4418 pci_set_drvdata(pdev
, NULL
);
4423 * vxge_rem_nic - Free the PCI device
4424 * @pdev: structure containing the PCI related information of the device.
4425 * Description: This function is called by the Pci subsystem to release a
4426 * PCI device and free up all resource held up by the device.
4428 static void __devexit
4429 vxge_remove(struct pci_dev
*pdev
)
4431 struct __vxge_hw_device
*hldev
;
4432 struct vxgedev
*vdev
= NULL
;
4433 struct net_device
*dev
;
4435 #if ((VXGE_DEBUG_INIT & VXGE_DEBUG_MASK) || \
4436 (VXGE_DEBUG_ENTRYEXIT & VXGE_DEBUG_MASK))
4440 hldev
= (struct __vxge_hw_device
*) pci_get_drvdata(pdev
);
4445 vdev
= netdev_priv(dev
);
4447 #if ((VXGE_DEBUG_INIT & VXGE_DEBUG_MASK) || \
4448 (VXGE_DEBUG_ENTRYEXIT & VXGE_DEBUG_MASK))
4449 level_trace
= vdev
->level_trace
;
4451 vxge_debug_entryexit(level_trace
,
4452 "%s:%d", __func__
, __LINE__
);
4454 vxge_debug_init(level_trace
,
4455 "%s : removing PCI device...", __func__
);
4456 vxge_device_unregister(hldev
);
4458 for (i
= 0; i
< vdev
->no_of_vpath
; i
++) {
4459 vxge_free_mac_add_list(&vdev
->vpaths
[i
]);
4460 vdev
->vpaths
[i
].mcast_addr_cnt
= 0;
4461 vdev
->vpaths
[i
].mac_addr_cnt
= 0;
4464 kfree(vdev
->vpaths
);
4466 iounmap(vdev
->bar0
);
4468 pci_disable_sriov(pdev
);
4470 /* we are safe to free it now */
4473 vxge_debug_init(level_trace
,
4474 "%s:%d Device unregistered", __func__
, __LINE__
);
4476 vxge_hw_device_terminate(hldev
);
4478 pci_disable_device(pdev
);
4479 pci_release_regions(pdev
);
4480 pci_set_drvdata(pdev
, NULL
);
4481 vxge_debug_entryexit(level_trace
,
4482 "%s:%d Exiting...", __func__
, __LINE__
);
4485 static struct pci_error_handlers vxge_err_handler
= {
4486 .error_detected
= vxge_io_error_detected
,
4487 .slot_reset
= vxge_io_slot_reset
,
4488 .resume
= vxge_io_resume
,
4491 static struct pci_driver vxge_driver
= {
4492 .name
= VXGE_DRIVER_NAME
,
4493 .id_table
= vxge_id_table
,
4494 .probe
= vxge_probe
,
4495 .remove
= __devexit_p(vxge_remove
),
4497 .suspend
= vxge_pm_suspend
,
4498 .resume
= vxge_pm_resume
,
4500 .err_handler
= &vxge_err_handler
,
4508 snprintf(version
, 32, "%s", DRV_VERSION
);
4510 printk(KERN_CRIT
"%s: Copyright(c) 2002-2009 Neterion Inc\n",
4512 printk(KERN_CRIT
"%s: Driver version: %s\n",
4513 VXGE_DRIVER_NAME
, version
);
4517 driver_config
= kzalloc(sizeof(struct vxge_drv_config
), GFP_KERNEL
);
4521 ret
= pci_register_driver(&vxge_driver
);
4523 if (driver_config
->config_dev_cnt
&&
4524 (driver_config
->config_dev_cnt
!= driver_config
->total_dev_cnt
))
4525 vxge_debug_init(VXGE_ERR
,
4526 "%s: Configured %d of %d devices",
4527 VXGE_DRIVER_NAME
, driver_config
->config_dev_cnt
,
4528 driver_config
->total_dev_cnt
);
4531 kfree(driver_config
);
4539 pci_unregister_driver(&vxge_driver
);
4540 kfree(driver_config
);
4542 module_init(vxge_starter
);
4543 module_exit(vxge_closer
);