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 Exar Corp's X3100 Series 10GbE PCIe I/O
11 * Virtualized Server Adapter.
12 * Copyright(c) 2002-2010 Exar Corp.
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 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
46 #include <linux/bitops.h>
47 #include <linux/if_vlan.h>
48 #include <linux/interrupt.h>
49 #include <linux/pci.h>
50 #include <linux/slab.h>
51 #include <linux/tcp.h>
53 #include <linux/netdevice.h>
54 #include <linux/etherdevice.h>
55 #include <linux/firmware.h>
56 #include <linux/net_tstamp.h>
57 #include <linux/prefetch.h>
58 #include <linux/module.h>
59 #include "vxge-main.h"
62 MODULE_LICENSE("Dual BSD/GPL");
63 MODULE_DESCRIPTION("Neterion's X3100 Series 10GbE PCIe I/O"
64 "Virtualized Server Adapter");
66 static const struct pci_device_id vxge_id_table
[] = {
67 {PCI_VENDOR_ID_S2IO
, PCI_DEVICE_ID_TITAN_WIN
, PCI_ANY_ID
,
69 {PCI_VENDOR_ID_S2IO
, PCI_DEVICE_ID_TITAN_UNI
, PCI_ANY_ID
,
74 MODULE_DEVICE_TABLE(pci
, vxge_id_table
);
76 VXGE_MODULE_PARAM_INT(vlan_tag_strip
, VXGE_HW_VPATH_RPA_STRIP_VLAN_TAG_ENABLE
);
77 VXGE_MODULE_PARAM_INT(addr_learn_en
, VXGE_HW_MAC_ADDR_LEARN_DEFAULT
);
78 VXGE_MODULE_PARAM_INT(max_config_port
, VXGE_MAX_CONFIG_PORT
);
79 VXGE_MODULE_PARAM_INT(max_config_vpath
, VXGE_USE_DEFAULT
);
80 VXGE_MODULE_PARAM_INT(max_mac_vpath
, VXGE_MAX_MAC_ADDR_COUNT
);
81 VXGE_MODULE_PARAM_INT(max_config_dev
, VXGE_MAX_CONFIG_DEV
);
83 static u16 vpath_selector
[VXGE_HW_MAX_VIRTUAL_PATHS
] =
84 {0, 1, 3, 3, 7, 7, 7, 7, 15, 15, 15, 15, 15, 15, 15, 15, 31};
85 static unsigned int bw_percentage
[VXGE_HW_MAX_VIRTUAL_PATHS
] =
86 {[0 ...(VXGE_HW_MAX_VIRTUAL_PATHS
- 1)] = 0xFF};
87 module_param_array(bw_percentage
, uint
, NULL
, 0);
89 static struct vxge_drv_config
*driver_config
;
90 static enum vxge_hw_status
vxge_reset_all_vpaths(struct vxgedev
*vdev
);
92 static inline int is_vxge_card_up(struct vxgedev
*vdev
)
94 return test_bit(__VXGE_STATE_CARD_UP
, &vdev
->state
);
97 static inline void VXGE_COMPLETE_VPATH_TX(struct vxge_fifo
*fifo
)
99 struct sk_buff
**skb_ptr
= NULL
;
100 struct sk_buff
**temp
;
101 #define NR_SKB_COMPLETED 128
102 struct sk_buff
*completed
[NR_SKB_COMPLETED
];
109 if (__netif_tx_trylock(fifo
->txq
)) {
110 vxge_hw_vpath_poll_tx(fifo
->handle
, &skb_ptr
,
111 NR_SKB_COMPLETED
, &more
);
112 __netif_tx_unlock(fifo
->txq
);
116 for (temp
= completed
; temp
!= skb_ptr
; temp
++)
117 dev_kfree_skb_irq(*temp
);
121 static inline void VXGE_COMPLETE_ALL_TX(struct vxgedev
*vdev
)
125 /* Complete all transmits */
126 for (i
= 0; i
< vdev
->no_of_vpath
; i
++)
127 VXGE_COMPLETE_VPATH_TX(&vdev
->vpaths
[i
].fifo
);
130 static inline void VXGE_COMPLETE_ALL_RX(struct vxgedev
*vdev
)
133 struct vxge_ring
*ring
;
135 /* Complete all receives*/
136 for (i
= 0; i
< vdev
->no_of_vpath
; i
++) {
137 ring
= &vdev
->vpaths
[i
].ring
;
138 vxge_hw_vpath_poll_rx(ring
->handle
);
143 * vxge_callback_link_up
145 * This function is called during interrupt context to notify link up state
148 static void vxge_callback_link_up(struct __vxge_hw_device
*hldev
)
150 struct net_device
*dev
= hldev
->ndev
;
151 struct vxgedev
*vdev
= netdev_priv(dev
);
153 vxge_debug_entryexit(VXGE_TRACE
, "%s: %s:%d",
154 vdev
->ndev
->name
, __func__
, __LINE__
);
155 netdev_notice(vdev
->ndev
, "Link Up\n");
156 vdev
->stats
.link_up
++;
158 netif_carrier_on(vdev
->ndev
);
159 netif_tx_wake_all_queues(vdev
->ndev
);
161 vxge_debug_entryexit(VXGE_TRACE
,
162 "%s: %s:%d Exiting...", vdev
->ndev
->name
, __func__
, __LINE__
);
166 * vxge_callback_link_down
168 * This function is called during interrupt context to notify link down state
171 static void vxge_callback_link_down(struct __vxge_hw_device
*hldev
)
173 struct net_device
*dev
= hldev
->ndev
;
174 struct vxgedev
*vdev
= netdev_priv(dev
);
176 vxge_debug_entryexit(VXGE_TRACE
,
177 "%s: %s:%d", vdev
->ndev
->name
, __func__
, __LINE__
);
178 netdev_notice(vdev
->ndev
, "Link Down\n");
180 vdev
->stats
.link_down
++;
181 netif_carrier_off(vdev
->ndev
);
182 netif_tx_stop_all_queues(vdev
->ndev
);
184 vxge_debug_entryexit(VXGE_TRACE
,
185 "%s: %s:%d Exiting...", vdev
->ndev
->name
, __func__
, __LINE__
);
193 static struct sk_buff
*
194 vxge_rx_alloc(void *dtrh
, struct vxge_ring
*ring
, const int skb_size
)
196 struct net_device
*dev
;
198 struct vxge_rx_priv
*rx_priv
;
201 vxge_debug_entryexit(VXGE_TRACE
, "%s: %s:%d",
202 ring
->ndev
->name
, __func__
, __LINE__
);
204 rx_priv
= vxge_hw_ring_rxd_private_get(dtrh
);
206 /* try to allocate skb first. this one may fail */
207 skb
= netdev_alloc_skb(dev
, skb_size
+
208 VXGE_HW_HEADER_ETHERNET_II_802_3_ALIGN
);
210 vxge_debug_mem(VXGE_ERR
,
211 "%s: out of memory to allocate SKB", dev
->name
);
212 ring
->stats
.skb_alloc_fail
++;
216 vxge_debug_mem(VXGE_TRACE
,
217 "%s: %s:%d Skb : 0x%p", ring
->ndev
->name
,
218 __func__
, __LINE__
, skb
);
220 skb_reserve(skb
, VXGE_HW_HEADER_ETHERNET_II_802_3_ALIGN
);
223 rx_priv
->skb_data
= NULL
;
224 rx_priv
->data_size
= skb_size
;
225 vxge_debug_entryexit(VXGE_TRACE
,
226 "%s: %s:%d Exiting...", ring
->ndev
->name
, __func__
, __LINE__
);
234 static int vxge_rx_map(void *dtrh
, struct vxge_ring
*ring
)
236 struct vxge_rx_priv
*rx_priv
;
239 vxge_debug_entryexit(VXGE_TRACE
, "%s: %s:%d",
240 ring
->ndev
->name
, __func__
, __LINE__
);
241 rx_priv
= vxge_hw_ring_rxd_private_get(dtrh
);
243 rx_priv
->skb_data
= rx_priv
->skb
->data
;
244 dma_addr
= pci_map_single(ring
->pdev
, rx_priv
->skb_data
,
245 rx_priv
->data_size
, PCI_DMA_FROMDEVICE
);
247 if (unlikely(pci_dma_mapping_error(ring
->pdev
, dma_addr
))) {
248 ring
->stats
.pci_map_fail
++;
251 vxge_debug_mem(VXGE_TRACE
,
252 "%s: %s:%d 1 buffer mode dma_addr = 0x%llx",
253 ring
->ndev
->name
, __func__
, __LINE__
,
254 (unsigned long long)dma_addr
);
255 vxge_hw_ring_rxd_1b_set(dtrh
, dma_addr
, rx_priv
->data_size
);
257 rx_priv
->data_dma
= dma_addr
;
258 vxge_debug_entryexit(VXGE_TRACE
,
259 "%s: %s:%d Exiting...", ring
->ndev
->name
, __func__
, __LINE__
);
265 * vxge_rx_initial_replenish
266 * Allocation of RxD as an initial replenish procedure.
268 static enum vxge_hw_status
269 vxge_rx_initial_replenish(void *dtrh
, void *userdata
)
271 struct vxge_ring
*ring
= (struct vxge_ring
*)userdata
;
272 struct vxge_rx_priv
*rx_priv
;
274 vxge_debug_entryexit(VXGE_TRACE
, "%s: %s:%d",
275 ring
->ndev
->name
, __func__
, __LINE__
);
276 if (vxge_rx_alloc(dtrh
, ring
,
277 VXGE_LL_MAX_FRAME_SIZE(ring
->ndev
)) == NULL
)
280 if (vxge_rx_map(dtrh
, ring
)) {
281 rx_priv
= vxge_hw_ring_rxd_private_get(dtrh
);
282 dev_kfree_skb(rx_priv
->skb
);
286 vxge_debug_entryexit(VXGE_TRACE
,
287 "%s: %s:%d Exiting...", ring
->ndev
->name
, __func__
, __LINE__
);
293 vxge_rx_complete(struct vxge_ring
*ring
, struct sk_buff
*skb
, u16 vlan
,
294 int pkt_length
, struct vxge_hw_ring_rxd_info
*ext_info
)
297 vxge_debug_entryexit(VXGE_TRACE
, "%s: %s:%d",
298 ring
->ndev
->name
, __func__
, __LINE__
);
299 skb_record_rx_queue(skb
, ring
->driver_id
);
300 skb
->protocol
= eth_type_trans(skb
, ring
->ndev
);
302 u64_stats_update_begin(&ring
->stats
.syncp
);
303 ring
->stats
.rx_frms
++;
304 ring
->stats
.rx_bytes
+= pkt_length
;
306 if (skb
->pkt_type
== PACKET_MULTICAST
)
307 ring
->stats
.rx_mcast
++;
308 u64_stats_update_end(&ring
->stats
.syncp
);
310 vxge_debug_rx(VXGE_TRACE
,
311 "%s: %s:%d skb protocol = %d",
312 ring
->ndev
->name
, __func__
, __LINE__
, skb
->protocol
);
314 if (ext_info
->vlan
&&
315 ring
->vlan_tag_strip
== VXGE_HW_VPATH_RPA_STRIP_VLAN_TAG_ENABLE
)
316 __vlan_hwaccel_put_tag(skb
, htons(ETH_P_8021Q
), ext_info
->vlan
);
317 napi_gro_receive(ring
->napi_p
, skb
);
319 vxge_debug_entryexit(VXGE_TRACE
,
320 "%s: %s:%d Exiting...", ring
->ndev
->name
, __func__
, __LINE__
);
323 static inline void vxge_re_pre_post(void *dtr
, struct vxge_ring
*ring
,
324 struct vxge_rx_priv
*rx_priv
)
326 pci_dma_sync_single_for_device(ring
->pdev
,
327 rx_priv
->data_dma
, rx_priv
->data_size
, PCI_DMA_FROMDEVICE
);
329 vxge_hw_ring_rxd_1b_set(dtr
, rx_priv
->data_dma
, rx_priv
->data_size
);
330 vxge_hw_ring_rxd_pre_post(ring
->handle
, dtr
);
333 static inline void vxge_post(int *dtr_cnt
, void **first_dtr
,
334 void *post_dtr
, struct __vxge_hw_ring
*ringh
)
336 int dtr_count
= *dtr_cnt
;
337 if ((*dtr_cnt
% VXGE_HW_RXSYNC_FREQ_CNT
) == 0) {
339 vxge_hw_ring_rxd_post_post_wmb(ringh
, *first_dtr
);
340 *first_dtr
= post_dtr
;
342 vxge_hw_ring_rxd_post_post(ringh
, post_dtr
);
344 *dtr_cnt
= dtr_count
;
350 * If the interrupt is because of a received frame or if the receive ring
351 * contains fresh as yet un-processed frames, this function is called.
353 static enum vxge_hw_status
354 vxge_rx_1b_compl(struct __vxge_hw_ring
*ringh
, void *dtr
,
355 u8 t_code
, void *userdata
)
357 struct vxge_ring
*ring
= (struct vxge_ring
*)userdata
;
358 struct net_device
*dev
= ring
->ndev
;
359 unsigned int dma_sizes
;
360 void *first_dtr
= NULL
;
366 struct vxge_rx_priv
*rx_priv
;
367 struct vxge_hw_ring_rxd_info ext_info
;
368 vxge_debug_entryexit(VXGE_TRACE
, "%s: %s:%d",
369 ring
->ndev
->name
, __func__
, __LINE__
);
371 if (ring
->budget
<= 0)
375 prefetch((char *)dtr
+ L1_CACHE_BYTES
);
376 rx_priv
= vxge_hw_ring_rxd_private_get(dtr
);
378 data_size
= rx_priv
->data_size
;
379 data_dma
= rx_priv
->data_dma
;
380 prefetch(rx_priv
->skb_data
);
382 vxge_debug_rx(VXGE_TRACE
,
383 "%s: %s:%d skb = 0x%p",
384 ring
->ndev
->name
, __func__
, __LINE__
, skb
);
386 vxge_hw_ring_rxd_1b_get(ringh
, dtr
, &dma_sizes
);
387 pkt_length
= dma_sizes
;
389 pkt_length
-= ETH_FCS_LEN
;
391 vxge_debug_rx(VXGE_TRACE
,
392 "%s: %s:%d Packet Length = %d",
393 ring
->ndev
->name
, __func__
, __LINE__
, pkt_length
);
395 vxge_hw_ring_rxd_1b_info_get(ringh
, dtr
, &ext_info
);
397 /* check skb validity */
400 prefetch((char *)skb
+ L1_CACHE_BYTES
);
401 if (unlikely(t_code
)) {
402 if (vxge_hw_ring_handle_tcode(ringh
, dtr
, t_code
) !=
405 ring
->stats
.rx_errors
++;
406 vxge_debug_rx(VXGE_TRACE
,
407 "%s: %s :%d Rx T_code is %d",
408 ring
->ndev
->name
, __func__
,
411 /* If the t_code is not supported and if the
412 * t_code is other than 0x5 (unparseable packet
413 * such as unknown UPV6 header), Drop it !!!
415 vxge_re_pre_post(dtr
, ring
, rx_priv
);
417 vxge_post(&dtr_cnt
, &first_dtr
, dtr
, ringh
);
418 ring
->stats
.rx_dropped
++;
423 if (pkt_length
> VXGE_LL_RX_COPY_THRESHOLD
) {
424 if (vxge_rx_alloc(dtr
, ring
, data_size
) != NULL
) {
425 if (!vxge_rx_map(dtr
, ring
)) {
426 skb_put(skb
, pkt_length
);
428 pci_unmap_single(ring
->pdev
, data_dma
,
429 data_size
, PCI_DMA_FROMDEVICE
);
431 vxge_hw_ring_rxd_pre_post(ringh
, dtr
);
432 vxge_post(&dtr_cnt
, &first_dtr
, dtr
,
435 dev_kfree_skb(rx_priv
->skb
);
437 rx_priv
->data_size
= data_size
;
438 vxge_re_pre_post(dtr
, ring
, rx_priv
);
440 vxge_post(&dtr_cnt
, &first_dtr
, dtr
,
442 ring
->stats
.rx_dropped
++;
446 vxge_re_pre_post(dtr
, ring
, rx_priv
);
448 vxge_post(&dtr_cnt
, &first_dtr
, dtr
, ringh
);
449 ring
->stats
.rx_dropped
++;
453 struct sk_buff
*skb_up
;
455 skb_up
= netdev_alloc_skb(dev
, pkt_length
+
456 VXGE_HW_HEADER_ETHERNET_II_802_3_ALIGN
);
457 if (skb_up
!= NULL
) {
459 VXGE_HW_HEADER_ETHERNET_II_802_3_ALIGN
);
461 pci_dma_sync_single_for_cpu(ring
->pdev
,
465 vxge_debug_mem(VXGE_TRACE
,
466 "%s: %s:%d skb_up = %p",
467 ring
->ndev
->name
, __func__
,
469 memcpy(skb_up
->data
, skb
->data
, pkt_length
);
471 vxge_re_pre_post(dtr
, ring
, rx_priv
);
473 vxge_post(&dtr_cnt
, &first_dtr
, dtr
,
475 /* will netif_rx small SKB instead */
477 skb_put(skb
, pkt_length
);
479 vxge_re_pre_post(dtr
, ring
, rx_priv
);
481 vxge_post(&dtr_cnt
, &first_dtr
, dtr
, ringh
);
482 vxge_debug_rx(VXGE_ERR
,
483 "%s: vxge_rx_1b_compl: out of "
484 "memory", dev
->name
);
485 ring
->stats
.skb_alloc_fail
++;
490 if ((ext_info
.proto
& VXGE_HW_FRAME_PROTO_TCP_OR_UDP
) &&
491 !(ext_info
.proto
& VXGE_HW_FRAME_PROTO_IP_FRAG
) &&
492 (dev
->features
& NETIF_F_RXCSUM
) && /* Offload Rx side CSUM */
493 ext_info
.l3_cksum
== VXGE_HW_L3_CKSUM_OK
&&
494 ext_info
.l4_cksum
== VXGE_HW_L4_CKSUM_OK
)
495 skb
->ip_summed
= CHECKSUM_UNNECESSARY
;
497 skb_checksum_none_assert(skb
);
501 struct skb_shared_hwtstamps
*skb_hwts
;
502 u32 ns
= *(u32
*)(skb
->head
+ pkt_length
);
504 skb_hwts
= skb_hwtstamps(skb
);
505 skb_hwts
->hwtstamp
= ns_to_ktime(ns
);
508 /* rth_hash_type and rth_it_hit are non-zero regardless of
509 * whether rss is enabled. Only the rth_value is zero/non-zero
510 * if rss is disabled/enabled, so key off of that.
512 if (ext_info
.rth_value
)
513 skb_set_hash(skb
, ext_info
.rth_value
,
516 vxge_rx_complete(ring
, skb
, ext_info
.vlan
,
517 pkt_length
, &ext_info
);
520 ring
->pkts_processed
++;
524 } while (vxge_hw_ring_rxd_next_completed(ringh
, &dtr
,
525 &t_code
) == VXGE_HW_OK
);
528 vxge_hw_ring_rxd_post_post_wmb(ringh
, first_dtr
);
531 vxge_debug_entryexit(VXGE_TRACE
,
540 * If an interrupt was raised to indicate DMA complete of the Tx packet,
541 * this function is called. It identifies the last TxD whose buffer was
542 * freed and frees all skbs whose data have already DMA'ed into the NICs
545 static enum vxge_hw_status
546 vxge_xmit_compl(struct __vxge_hw_fifo
*fifo_hw
, void *dtr
,
547 enum vxge_hw_fifo_tcode t_code
, void *userdata
,
548 struct sk_buff
***skb_ptr
, int nr_skb
, int *more
)
550 struct vxge_fifo
*fifo
= (struct vxge_fifo
*)userdata
;
551 struct sk_buff
*skb
, **done_skb
= *skb_ptr
;
554 vxge_debug_entryexit(VXGE_TRACE
,
555 "%s:%d Entered....", __func__
, __LINE__
);
561 struct vxge_tx_priv
*txd_priv
=
562 vxge_hw_fifo_txdl_private_get(dtr
);
565 frg_cnt
= skb_shinfo(skb
)->nr_frags
;
566 frag
= &skb_shinfo(skb
)->frags
[0];
568 vxge_debug_tx(VXGE_TRACE
,
569 "%s: %s:%d fifo_hw = %p dtr = %p "
570 "tcode = 0x%x", fifo
->ndev
->name
, __func__
,
571 __LINE__
, fifo_hw
, dtr
, t_code
);
572 /* check skb validity */
574 vxge_debug_tx(VXGE_TRACE
,
575 "%s: %s:%d skb = %p itxd_priv = %p frg_cnt = %d",
576 fifo
->ndev
->name
, __func__
, __LINE__
,
577 skb
, txd_priv
, frg_cnt
);
578 if (unlikely(t_code
)) {
579 fifo
->stats
.tx_errors
++;
580 vxge_debug_tx(VXGE_ERR
,
581 "%s: tx: dtr %p completed due to "
582 "error t_code %01x", fifo
->ndev
->name
,
584 vxge_hw_fifo_handle_tcode(fifo_hw
, dtr
, t_code
);
587 /* for unfragmented skb */
588 pci_unmap_single(fifo
->pdev
, txd_priv
->dma_buffers
[i
++],
589 skb_headlen(skb
), PCI_DMA_TODEVICE
);
591 for (j
= 0; j
< frg_cnt
; j
++) {
592 pci_unmap_page(fifo
->pdev
,
593 txd_priv
->dma_buffers
[i
++],
594 skb_frag_size(frag
), PCI_DMA_TODEVICE
);
598 vxge_hw_fifo_txdl_free(fifo_hw
, dtr
);
600 /* Updating the statistics block */
601 u64_stats_update_begin(&fifo
->stats
.syncp
);
602 fifo
->stats
.tx_frms
++;
603 fifo
->stats
.tx_bytes
+= skb
->len
;
604 u64_stats_update_end(&fifo
->stats
.syncp
);
614 if (pkt_cnt
> fifo
->indicate_max_pkts
)
617 } while (vxge_hw_fifo_txdl_next_completed(fifo_hw
,
618 &dtr
, &t_code
) == VXGE_HW_OK
);
621 if (netif_tx_queue_stopped(fifo
->txq
))
622 netif_tx_wake_queue(fifo
->txq
);
624 vxge_debug_entryexit(VXGE_TRACE
,
625 "%s: %s:%d Exiting...",
626 fifo
->ndev
->name
, __func__
, __LINE__
);
630 /* select a vpath to transmit the packet */
631 static u32
vxge_get_vpath_no(struct vxgedev
*vdev
, struct sk_buff
*skb
)
633 u16 queue_len
, counter
= 0;
634 if (skb
->protocol
== htons(ETH_P_IP
)) {
640 if (!ip_is_fragment(ip
)) {
641 th
= (struct tcphdr
*)(((unsigned char *)ip
) +
644 queue_len
= vdev
->no_of_vpath
;
645 counter
= (ntohs(th
->source
) +
647 vdev
->vpath_selector
[queue_len
- 1];
648 if (counter
>= queue_len
)
649 counter
= queue_len
- 1;
655 static enum vxge_hw_status
vxge_search_mac_addr_in_list(
656 struct vxge_vpath
*vpath
, u64 del_mac
)
658 struct list_head
*entry
, *next
;
659 list_for_each_safe(entry
, next
, &vpath
->mac_addr_list
) {
660 if (((struct vxge_mac_addrs
*)entry
)->macaddr
== del_mac
)
666 static int vxge_mac_list_add(struct vxge_vpath
*vpath
, struct macInfo
*mac
)
668 struct vxge_mac_addrs
*new_mac_entry
;
669 u8
*mac_address
= NULL
;
671 if (vpath
->mac_addr_cnt
>= VXGE_MAX_LEARN_MAC_ADDR_CNT
)
674 new_mac_entry
= kzalloc(sizeof(struct vxge_mac_addrs
), GFP_ATOMIC
);
675 if (!new_mac_entry
) {
676 vxge_debug_mem(VXGE_ERR
,
677 "%s: memory allocation failed",
682 list_add(&new_mac_entry
->item
, &vpath
->mac_addr_list
);
684 /* Copy the new mac address to the list */
685 mac_address
= (u8
*)&new_mac_entry
->macaddr
;
686 memcpy(mac_address
, mac
->macaddr
, ETH_ALEN
);
688 new_mac_entry
->state
= mac
->state
;
689 vpath
->mac_addr_cnt
++;
691 if (is_multicast_ether_addr(mac
->macaddr
))
692 vpath
->mcast_addr_cnt
++;
697 /* Add a mac address to DA table */
698 static enum vxge_hw_status
699 vxge_add_mac_addr(struct vxgedev
*vdev
, struct macInfo
*mac
)
701 enum vxge_hw_status status
= VXGE_HW_OK
;
702 struct vxge_vpath
*vpath
;
703 enum vxge_hw_vpath_mac_addr_add_mode duplicate_mode
;
705 if (is_multicast_ether_addr(mac
->macaddr
))
706 duplicate_mode
= VXGE_HW_VPATH_MAC_ADDR_ADD_DUPLICATE
;
708 duplicate_mode
= VXGE_HW_VPATH_MAC_ADDR_REPLACE_DUPLICATE
;
710 vpath
= &vdev
->vpaths
[mac
->vpath_no
];
711 status
= vxge_hw_vpath_mac_addr_add(vpath
->handle
, mac
->macaddr
,
712 mac
->macmask
, duplicate_mode
);
713 if (status
!= VXGE_HW_OK
) {
714 vxge_debug_init(VXGE_ERR
,
715 "DA config add entry failed for vpath:%d",
718 if (FALSE
== vxge_mac_list_add(vpath
, mac
))
724 static int vxge_learn_mac(struct vxgedev
*vdev
, u8
*mac_header
)
726 struct macInfo mac_info
;
727 u8
*mac_address
= NULL
;
728 u64 mac_addr
= 0, vpath_vector
= 0;
730 enum vxge_hw_status status
= VXGE_HW_OK
;
731 struct vxge_vpath
*vpath
= NULL
;
733 mac_address
= (u8
*)&mac_addr
;
734 memcpy(mac_address
, mac_header
, ETH_ALEN
);
736 /* Is this mac address already in the list? */
737 for (vpath_idx
= 0; vpath_idx
< vdev
->no_of_vpath
; vpath_idx
++) {
738 vpath
= &vdev
->vpaths
[vpath_idx
];
739 if (vxge_search_mac_addr_in_list(vpath
, mac_addr
))
743 memset(&mac_info
, 0, sizeof(struct macInfo
));
744 memcpy(mac_info
.macaddr
, mac_header
, ETH_ALEN
);
746 /* Any vpath has room to add mac address to its da table? */
747 for (vpath_idx
= 0; vpath_idx
< vdev
->no_of_vpath
; vpath_idx
++) {
748 vpath
= &vdev
->vpaths
[vpath_idx
];
749 if (vpath
->mac_addr_cnt
< vpath
->max_mac_addr_cnt
) {
750 /* Add this mac address to this vpath */
751 mac_info
.vpath_no
= vpath_idx
;
752 mac_info
.state
= VXGE_LL_MAC_ADDR_IN_DA_TABLE
;
753 status
= vxge_add_mac_addr(vdev
, &mac_info
);
754 if (status
!= VXGE_HW_OK
)
760 mac_info
.state
= VXGE_LL_MAC_ADDR_IN_LIST
;
762 mac_info
.vpath_no
= vpath_idx
;
763 /* Is the first vpath already selected as catch-basin ? */
764 vpath
= &vdev
->vpaths
[vpath_idx
];
765 if (vpath
->mac_addr_cnt
> vpath
->max_mac_addr_cnt
) {
766 /* Add this mac address to this vpath */
767 if (FALSE
== vxge_mac_list_add(vpath
, &mac_info
))
772 /* Select first vpath as catch-basin */
773 vpath_vector
= vxge_mBIT(vpath
->device_id
);
774 status
= vxge_hw_mgmt_reg_write(vpath
->vdev
->devh
,
775 vxge_hw_mgmt_reg_type_mrpcim
,
778 struct vxge_hw_mrpcim_reg
,
781 if (status
!= VXGE_HW_OK
) {
782 vxge_debug_tx(VXGE_ERR
,
783 "%s: Unable to set the vpath-%d in catch-basin mode",
784 VXGE_DRIVER_NAME
, vpath
->device_id
);
788 if (FALSE
== vxge_mac_list_add(vpath
, &mac_info
))
796 * @skb : the socket buffer containing the Tx data.
797 * @dev : device pointer.
799 * This function is the Tx entry point of the driver. Neterion NIC supports
800 * certain protocol assist features on Tx side, namely CSO, S/G, LSO.
803 vxge_xmit(struct sk_buff
*skb
, struct net_device
*dev
)
805 struct vxge_fifo
*fifo
= NULL
;
808 struct vxgedev
*vdev
= NULL
;
809 enum vxge_hw_status status
;
810 int frg_cnt
, first_frg_len
;
812 int i
= 0, j
= 0, avail
;
814 struct vxge_tx_priv
*txdl_priv
= NULL
;
815 struct __vxge_hw_fifo
*fifo_hw
;
819 vxge_debug_entryexit(VXGE_TRACE
, "%s: %s:%d",
820 dev
->name
, __func__
, __LINE__
);
822 /* A buffer with no data will be dropped */
823 if (unlikely(skb
->len
<= 0)) {
824 vxge_debug_tx(VXGE_ERR
,
825 "%s: Buffer has no data..", dev
->name
);
826 dev_kfree_skb_any(skb
);
830 vdev
= netdev_priv(dev
);
832 if (unlikely(!is_vxge_card_up(vdev
))) {
833 vxge_debug_tx(VXGE_ERR
,
834 "%s: vdev not initialized", dev
->name
);
835 dev_kfree_skb_any(skb
);
839 if (vdev
->config
.addr_learn_en
) {
840 vpath_no
= vxge_learn_mac(vdev
, skb
->data
+ ETH_ALEN
);
841 if (vpath_no
== -EPERM
) {
842 vxge_debug_tx(VXGE_ERR
,
843 "%s: Failed to store the mac address",
845 dev_kfree_skb_any(skb
);
850 if (vdev
->config
.tx_steering_type
== TX_MULTIQ_STEERING
)
851 vpath_no
= skb_get_queue_mapping(skb
);
852 else if (vdev
->config
.tx_steering_type
== TX_PORT_STEERING
)
853 vpath_no
= vxge_get_vpath_no(vdev
, skb
);
855 vxge_debug_tx(VXGE_TRACE
, "%s: vpath_no= %d", dev
->name
, vpath_no
);
857 if (vpath_no
>= vdev
->no_of_vpath
)
860 fifo
= &vdev
->vpaths
[vpath_no
].fifo
;
861 fifo_hw
= fifo
->handle
;
863 if (netif_tx_queue_stopped(fifo
->txq
))
864 return NETDEV_TX_BUSY
;
866 avail
= vxge_hw_fifo_free_txdl_count_get(fifo_hw
);
868 vxge_debug_tx(VXGE_ERR
,
869 "%s: No free TXDs available", dev
->name
);
870 fifo
->stats
.txd_not_free
++;
874 /* Last TXD? Stop tx queue to avoid dropping packets. TX
875 * completion will resume the queue.
878 netif_tx_stop_queue(fifo
->txq
);
880 status
= vxge_hw_fifo_txdl_reserve(fifo_hw
, &dtr
, &dtr_priv
);
881 if (unlikely(status
!= VXGE_HW_OK
)) {
882 vxge_debug_tx(VXGE_ERR
,
883 "%s: Out of descriptors .", dev
->name
);
884 fifo
->stats
.txd_out_of_desc
++;
888 vxge_debug_tx(VXGE_TRACE
,
889 "%s: %s:%d fifo_hw = %p dtr = %p dtr_priv = %p",
890 dev
->name
, __func__
, __LINE__
,
891 fifo_hw
, dtr
, dtr_priv
);
893 if (skb_vlan_tag_present(skb
)) {
894 u16 vlan_tag
= skb_vlan_tag_get(skb
);
895 vxge_hw_fifo_txdl_vlan_set(dtr
, vlan_tag
);
898 first_frg_len
= skb_headlen(skb
);
900 dma_pointer
= pci_map_single(fifo
->pdev
, skb
->data
, first_frg_len
,
903 if (unlikely(pci_dma_mapping_error(fifo
->pdev
, dma_pointer
))) {
904 vxge_hw_fifo_txdl_free(fifo_hw
, dtr
);
905 fifo
->stats
.pci_map_fail
++;
909 txdl_priv
= vxge_hw_fifo_txdl_private_get(dtr
);
910 txdl_priv
->skb
= skb
;
911 txdl_priv
->dma_buffers
[j
] = dma_pointer
;
913 frg_cnt
= skb_shinfo(skb
)->nr_frags
;
914 vxge_debug_tx(VXGE_TRACE
,
915 "%s: %s:%d skb = %p txdl_priv = %p "
916 "frag_cnt = %d dma_pointer = 0x%llx", dev
->name
,
917 __func__
, __LINE__
, skb
, txdl_priv
,
918 frg_cnt
, (unsigned long long)dma_pointer
);
920 vxge_hw_fifo_txdl_buffer_set(fifo_hw
, dtr
, j
++, dma_pointer
,
923 frag
= &skb_shinfo(skb
)->frags
[0];
924 for (i
= 0; i
< frg_cnt
; i
++) {
925 /* ignore 0 length fragment */
926 if (!skb_frag_size(frag
))
929 dma_pointer
= (u64
)skb_frag_dma_map(&fifo
->pdev
->dev
, frag
,
930 0, skb_frag_size(frag
),
933 if (unlikely(dma_mapping_error(&fifo
->pdev
->dev
, dma_pointer
)))
935 vxge_debug_tx(VXGE_TRACE
,
936 "%s: %s:%d frag = %d dma_pointer = 0x%llx",
937 dev
->name
, __func__
, __LINE__
, i
,
938 (unsigned long long)dma_pointer
);
940 txdl_priv
->dma_buffers
[j
] = dma_pointer
;
941 vxge_hw_fifo_txdl_buffer_set(fifo_hw
, dtr
, j
++, dma_pointer
,
942 skb_frag_size(frag
));
946 offload_type
= vxge_offload_type(skb
);
948 if (offload_type
& (SKB_GSO_TCPV4
| SKB_GSO_TCPV6
)) {
949 int mss
= vxge_tcp_mss(skb
);
951 vxge_debug_tx(VXGE_TRACE
, "%s: %s:%d mss = %d",
952 dev
->name
, __func__
, __LINE__
, mss
);
953 vxge_hw_fifo_txdl_mss_set(dtr
, mss
);
955 vxge_assert(skb
->len
<=
956 dev
->mtu
+ VXGE_HW_MAC_HEADER_MAX_SIZE
);
962 if (skb
->ip_summed
== CHECKSUM_PARTIAL
)
963 vxge_hw_fifo_txdl_cksum_set_bits(dtr
,
964 VXGE_HW_FIFO_TXD_TX_CKO_IPV4_EN
|
965 VXGE_HW_FIFO_TXD_TX_CKO_TCP_EN
|
966 VXGE_HW_FIFO_TXD_TX_CKO_UDP_EN
);
968 vxge_hw_fifo_txdl_post(fifo_hw
, dtr
);
970 vxge_debug_entryexit(VXGE_TRACE
, "%s: %s:%d Exiting...",
971 dev
->name
, __func__
, __LINE__
);
975 vxge_debug_tx(VXGE_TRACE
, "%s: pci_map_page failed", dev
->name
);
978 frag
= &skb_shinfo(skb
)->frags
[0];
980 pci_unmap_single(fifo
->pdev
, txdl_priv
->dma_buffers
[j
++],
981 skb_headlen(skb
), PCI_DMA_TODEVICE
);
984 pci_unmap_page(fifo
->pdev
, txdl_priv
->dma_buffers
[j
],
985 skb_frag_size(frag
), PCI_DMA_TODEVICE
);
989 vxge_hw_fifo_txdl_free(fifo_hw
, dtr
);
991 netif_tx_stop_queue(fifo
->txq
);
992 dev_kfree_skb_any(skb
);
1000 * Function will be called by hw function to abort all outstanding receive
1004 vxge_rx_term(void *dtrh
, enum vxge_hw_rxd_state state
, void *userdata
)
1006 struct vxge_ring
*ring
= (struct vxge_ring
*)userdata
;
1007 struct vxge_rx_priv
*rx_priv
=
1008 vxge_hw_ring_rxd_private_get(dtrh
);
1010 vxge_debug_entryexit(VXGE_TRACE
, "%s: %s:%d",
1011 ring
->ndev
->name
, __func__
, __LINE__
);
1012 if (state
!= VXGE_HW_RXD_STATE_POSTED
)
1015 pci_unmap_single(ring
->pdev
, rx_priv
->data_dma
,
1016 rx_priv
->data_size
, PCI_DMA_FROMDEVICE
);
1018 dev_kfree_skb(rx_priv
->skb
);
1019 rx_priv
->skb_data
= NULL
;
1021 vxge_debug_entryexit(VXGE_TRACE
,
1022 "%s: %s:%d Exiting...",
1023 ring
->ndev
->name
, __func__
, __LINE__
);
1029 * Function will be called to abort all outstanding tx descriptors
1032 vxge_tx_term(void *dtrh
, enum vxge_hw_txdl_state state
, void *userdata
)
1034 struct vxge_fifo
*fifo
= (struct vxge_fifo
*)userdata
;
1036 int i
= 0, j
, frg_cnt
;
1037 struct vxge_tx_priv
*txd_priv
= vxge_hw_fifo_txdl_private_get(dtrh
);
1038 struct sk_buff
*skb
= txd_priv
->skb
;
1040 vxge_debug_entryexit(VXGE_TRACE
, "%s:%d", __func__
, __LINE__
);
1042 if (state
!= VXGE_HW_TXDL_STATE_POSTED
)
1045 /* check skb validity */
1047 frg_cnt
= skb_shinfo(skb
)->nr_frags
;
1048 frag
= &skb_shinfo(skb
)->frags
[0];
1050 /* for unfragmented skb */
1051 pci_unmap_single(fifo
->pdev
, txd_priv
->dma_buffers
[i
++],
1052 skb_headlen(skb
), PCI_DMA_TODEVICE
);
1054 for (j
= 0; j
< frg_cnt
; j
++) {
1055 pci_unmap_page(fifo
->pdev
, txd_priv
->dma_buffers
[i
++],
1056 skb_frag_size(frag
), PCI_DMA_TODEVICE
);
1062 vxge_debug_entryexit(VXGE_TRACE
,
1063 "%s:%d Exiting...", __func__
, __LINE__
);
1066 static int vxge_mac_list_del(struct vxge_vpath
*vpath
, struct macInfo
*mac
)
1068 struct list_head
*entry
, *next
;
1070 u8
*mac_address
= (u8
*) (&del_mac
);
1072 /* Copy the mac address to delete from the list */
1073 memcpy(mac_address
, mac
->macaddr
, ETH_ALEN
);
1075 list_for_each_safe(entry
, next
, &vpath
->mac_addr_list
) {
1076 if (((struct vxge_mac_addrs
*)entry
)->macaddr
== del_mac
) {
1078 kfree((struct vxge_mac_addrs
*)entry
);
1079 vpath
->mac_addr_cnt
--;
1081 if (is_multicast_ether_addr(mac
->macaddr
))
1082 vpath
->mcast_addr_cnt
--;
1090 /* delete a mac address from DA table */
1091 static enum vxge_hw_status
1092 vxge_del_mac_addr(struct vxgedev
*vdev
, struct macInfo
*mac
)
1094 enum vxge_hw_status status
= VXGE_HW_OK
;
1095 struct vxge_vpath
*vpath
;
1097 vpath
= &vdev
->vpaths
[mac
->vpath_no
];
1098 status
= vxge_hw_vpath_mac_addr_delete(vpath
->handle
, mac
->macaddr
,
1100 if (status
!= VXGE_HW_OK
) {
1101 vxge_debug_init(VXGE_ERR
,
1102 "DA config delete entry failed for vpath:%d",
1105 vxge_mac_list_del(vpath
, mac
);
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 netdev_hw_addr
*ha
;
1123 struct vxgedev
*vdev
;
1124 int i
, mcast_cnt
= 0;
1125 struct __vxge_hw_device
*hldev
;
1126 struct vxge_vpath
*vpath
;
1127 enum vxge_hw_status status
= VXGE_HW_OK
;
1128 struct macInfo mac_info
;
1130 struct vxge_mac_addrs
*mac_entry
;
1131 struct list_head
*list_head
;
1132 struct list_head
*entry
, *next
;
1133 u8
*mac_address
= NULL
;
1135 vxge_debug_entryexit(VXGE_TRACE
,
1136 "%s:%d", __func__
, __LINE__
);
1138 vdev
= netdev_priv(dev
);
1141 if (unlikely(!is_vxge_card_up(vdev
)))
1144 if ((dev
->flags
& IFF_ALLMULTI
) && (!vdev
->all_multi_flg
)) {
1145 for (i
= 0; i
< vdev
->no_of_vpath
; i
++) {
1146 vpath
= &vdev
->vpaths
[i
];
1147 vxge_assert(vpath
->is_open
);
1148 status
= vxge_hw_vpath_mcast_enable(vpath
->handle
);
1149 if (status
!= VXGE_HW_OK
)
1150 vxge_debug_init(VXGE_ERR
, "failed to enable "
1151 "multicast, status %d", status
);
1152 vdev
->all_multi_flg
= 1;
1154 } else if (!(dev
->flags
& IFF_ALLMULTI
) && (vdev
->all_multi_flg
)) {
1155 for (i
= 0; i
< vdev
->no_of_vpath
; i
++) {
1156 vpath
= &vdev
->vpaths
[i
];
1157 vxge_assert(vpath
->is_open
);
1158 status
= vxge_hw_vpath_mcast_disable(vpath
->handle
);
1159 if (status
!= VXGE_HW_OK
)
1160 vxge_debug_init(VXGE_ERR
, "failed to disable "
1161 "multicast, status %d", status
);
1162 vdev
->all_multi_flg
= 0;
1167 if (!vdev
->config
.addr_learn_en
) {
1168 for (i
= 0; i
< vdev
->no_of_vpath
; i
++) {
1169 vpath
= &vdev
->vpaths
[i
];
1170 vxge_assert(vpath
->is_open
);
1172 if (dev
->flags
& IFF_PROMISC
)
1173 status
= vxge_hw_vpath_promisc_enable(
1176 status
= vxge_hw_vpath_promisc_disable(
1178 if (status
!= VXGE_HW_OK
)
1179 vxge_debug_init(VXGE_ERR
, "failed to %s promisc"
1180 ", status %d", dev
->flags
&IFF_PROMISC
?
1181 "enable" : "disable", status
);
1185 memset(&mac_info
, 0, sizeof(struct macInfo
));
1186 /* Update individual M_CAST address list */
1187 if ((!vdev
->all_multi_flg
) && netdev_mc_count(dev
)) {
1188 mcast_cnt
= vdev
->vpaths
[0].mcast_addr_cnt
;
1189 list_head
= &vdev
->vpaths
[0].mac_addr_list
;
1190 if ((netdev_mc_count(dev
) +
1191 (vdev
->vpaths
[0].mac_addr_cnt
- mcast_cnt
)) >
1192 vdev
->vpaths
[0].max_mac_addr_cnt
)
1193 goto _set_all_mcast
;
1195 /* Delete previous MC's */
1196 for (i
= 0; i
< mcast_cnt
; i
++) {
1197 list_for_each_safe(entry
, next
, list_head
) {
1198 mac_entry
= (struct vxge_mac_addrs
*)entry
;
1199 /* Copy the mac address to delete */
1200 mac_address
= (u8
*)&mac_entry
->macaddr
;
1201 memcpy(mac_info
.macaddr
, mac_address
, ETH_ALEN
);
1203 if (is_multicast_ether_addr(mac_info
.macaddr
)) {
1204 for (vpath_idx
= 0; vpath_idx
<
1207 mac_info
.vpath_no
= vpath_idx
;
1208 status
= vxge_del_mac_addr(
1217 netdev_for_each_mc_addr(ha
, dev
) {
1218 memcpy(mac_info
.macaddr
, ha
->addr
, ETH_ALEN
);
1219 for (vpath_idx
= 0; vpath_idx
< vdev
->no_of_vpath
;
1221 mac_info
.vpath_no
= vpath_idx
;
1222 mac_info
.state
= VXGE_LL_MAC_ADDR_IN_DA_TABLE
;
1223 status
= vxge_add_mac_addr(vdev
, &mac_info
);
1224 if (status
!= VXGE_HW_OK
) {
1225 vxge_debug_init(VXGE_ERR
,
1226 "%s:%d Setting individual"
1227 "multicast address failed",
1228 __func__
, __LINE__
);
1229 goto _set_all_mcast
;
1236 mcast_cnt
= vdev
->vpaths
[0].mcast_addr_cnt
;
1237 /* Delete previous MC's */
1238 for (i
= 0; i
< mcast_cnt
; i
++) {
1239 list_for_each_safe(entry
, next
, list_head
) {
1240 mac_entry
= (struct vxge_mac_addrs
*)entry
;
1241 /* Copy the mac address to delete */
1242 mac_address
= (u8
*)&mac_entry
->macaddr
;
1243 memcpy(mac_info
.macaddr
, mac_address
, ETH_ALEN
);
1245 if (is_multicast_ether_addr(mac_info
.macaddr
))
1249 for (vpath_idx
= 0; vpath_idx
< vdev
->no_of_vpath
;
1251 mac_info
.vpath_no
= vpath_idx
;
1252 status
= vxge_del_mac_addr(vdev
, &mac_info
);
1256 /* Enable all multicast */
1257 for (i
= 0; i
< vdev
->no_of_vpath
; i
++) {
1258 vpath
= &vdev
->vpaths
[i
];
1259 vxge_assert(vpath
->is_open
);
1261 status
= vxge_hw_vpath_mcast_enable(vpath
->handle
);
1262 if (status
!= VXGE_HW_OK
) {
1263 vxge_debug_init(VXGE_ERR
,
1264 "%s:%d Enabling all multicasts failed",
1265 __func__
, __LINE__
);
1267 vdev
->all_multi_flg
= 1;
1269 dev
->flags
|= IFF_ALLMULTI
;
1272 vxge_debug_entryexit(VXGE_TRACE
,
1273 "%s:%d Exiting...", __func__
, __LINE__
);
1278 * @dev: pointer to the device structure
1280 * Update entry "0" (default MAC addr)
1282 static int vxge_set_mac_addr(struct net_device
*dev
, void *p
)
1284 struct sockaddr
*addr
= p
;
1285 struct vxgedev
*vdev
;
1286 struct __vxge_hw_device
*hldev
;
1287 enum vxge_hw_status status
= VXGE_HW_OK
;
1288 struct macInfo mac_info_new
, mac_info_old
;
1291 vxge_debug_entryexit(VXGE_TRACE
, "%s:%d", __func__
, __LINE__
);
1293 vdev
= netdev_priv(dev
);
1296 if (!is_valid_ether_addr(addr
->sa_data
))
1299 memset(&mac_info_new
, 0, sizeof(struct macInfo
));
1300 memset(&mac_info_old
, 0, sizeof(struct macInfo
));
1302 vxge_debug_entryexit(VXGE_TRACE
, "%s:%d Exiting...",
1303 __func__
, __LINE__
);
1305 /* Get the old address */
1306 memcpy(mac_info_old
.macaddr
, dev
->dev_addr
, dev
->addr_len
);
1308 /* Copy the new address */
1309 memcpy(mac_info_new
.macaddr
, addr
->sa_data
, dev
->addr_len
);
1311 /* First delete the old mac address from all the vpaths
1312 as we can't specify the index while adding new mac address */
1313 for (vpath_idx
= 0; vpath_idx
< vdev
->no_of_vpath
; vpath_idx
++) {
1314 struct vxge_vpath
*vpath
= &vdev
->vpaths
[vpath_idx
];
1315 if (!vpath
->is_open
) {
1316 /* This can happen when this interface is added/removed
1317 to the bonding interface. Delete this station address
1318 from the linked list */
1319 vxge_mac_list_del(vpath
, &mac_info_old
);
1321 /* Add this new address to the linked list
1322 for later restoring */
1323 vxge_mac_list_add(vpath
, &mac_info_new
);
1327 /* Delete the station address */
1328 mac_info_old
.vpath_no
= vpath_idx
;
1329 status
= vxge_del_mac_addr(vdev
, &mac_info_old
);
1332 if (unlikely(!is_vxge_card_up(vdev
))) {
1333 memcpy(dev
->dev_addr
, addr
->sa_data
, dev
->addr_len
);
1337 /* Set this mac address to all the vpaths */
1338 for (vpath_idx
= 0; vpath_idx
< vdev
->no_of_vpath
; vpath_idx
++) {
1339 mac_info_new
.vpath_no
= vpath_idx
;
1340 mac_info_new
.state
= VXGE_LL_MAC_ADDR_IN_DA_TABLE
;
1341 status
= vxge_add_mac_addr(vdev
, &mac_info_new
);
1342 if (status
!= VXGE_HW_OK
)
1346 memcpy(dev
->dev_addr
, addr
->sa_data
, dev
->addr_len
);
1352 * vxge_vpath_intr_enable
1353 * @vdev: pointer to vdev
1354 * @vp_id: vpath for which to enable the interrupts
1356 * Enables the interrupts for the vpath
1358 static void vxge_vpath_intr_enable(struct vxgedev
*vdev
, int vp_id
)
1360 struct vxge_vpath
*vpath
= &vdev
->vpaths
[vp_id
];
1362 int tim_msix_id
[4] = {0, 1, 0, 0};
1363 int alarm_msix_id
= VXGE_ALARM_MSIX_ID
;
1365 vxge_hw_vpath_intr_enable(vpath
->handle
);
1367 if (vdev
->config
.intr_type
== INTA
)
1368 vxge_hw_vpath_inta_unmask_tx_rx(vpath
->handle
);
1370 vxge_hw_vpath_msix_set(vpath
->handle
, tim_msix_id
,
1373 msix_id
= vpath
->device_id
* VXGE_HW_VPATH_MSIX_ACTIVE
;
1374 vxge_hw_vpath_msix_unmask(vpath
->handle
, msix_id
);
1375 vxge_hw_vpath_msix_unmask(vpath
->handle
, msix_id
+ 1);
1377 /* enable the alarm vector */
1378 msix_id
= (vpath
->handle
->vpath
->hldev
->first_vp_id
*
1379 VXGE_HW_VPATH_MSIX_ACTIVE
) + alarm_msix_id
;
1380 vxge_hw_vpath_msix_unmask(vpath
->handle
, msix_id
);
1385 * vxge_vpath_intr_disable
1386 * @vdev: pointer to vdev
1387 * @vp_id: vpath for which to disable the interrupts
1389 * Disables the interrupts for the vpath
1391 static void vxge_vpath_intr_disable(struct vxgedev
*vdev
, int vp_id
)
1393 struct vxge_vpath
*vpath
= &vdev
->vpaths
[vp_id
];
1394 struct __vxge_hw_device
*hldev
;
1397 hldev
= pci_get_drvdata(vdev
->pdev
);
1399 vxge_hw_vpath_wait_receive_idle(hldev
, vpath
->device_id
);
1401 vxge_hw_vpath_intr_disable(vpath
->handle
);
1403 if (vdev
->config
.intr_type
== INTA
)
1404 vxge_hw_vpath_inta_mask_tx_rx(vpath
->handle
);
1406 msix_id
= vpath
->device_id
* VXGE_HW_VPATH_MSIX_ACTIVE
;
1407 vxge_hw_vpath_msix_mask(vpath
->handle
, msix_id
);
1408 vxge_hw_vpath_msix_mask(vpath
->handle
, msix_id
+ 1);
1410 /* disable the alarm vector */
1411 msix_id
= (vpath
->handle
->vpath
->hldev
->first_vp_id
*
1412 VXGE_HW_VPATH_MSIX_ACTIVE
) + VXGE_ALARM_MSIX_ID
;
1413 vxge_hw_vpath_msix_mask(vpath
->handle
, msix_id
);
1417 /* list all mac addresses from DA table */
1418 static enum vxge_hw_status
1419 vxge_search_mac_addr_in_da_table(struct vxge_vpath
*vpath
, struct macInfo
*mac
)
1421 enum vxge_hw_status status
= VXGE_HW_OK
;
1422 unsigned char macmask
[ETH_ALEN
];
1423 unsigned char macaddr
[ETH_ALEN
];
1425 status
= vxge_hw_vpath_mac_addr_get(vpath
->handle
,
1427 if (status
!= VXGE_HW_OK
) {
1428 vxge_debug_init(VXGE_ERR
,
1429 "DA config list entry failed for vpath:%d",
1434 while (!ether_addr_equal(mac
->macaddr
, macaddr
)) {
1435 status
= vxge_hw_vpath_mac_addr_get_next(vpath
->handle
,
1437 if (status
!= VXGE_HW_OK
)
1444 /* Store all mac addresses from the list to the DA table */
1445 static enum vxge_hw_status
vxge_restore_vpath_mac_addr(struct vxge_vpath
*vpath
)
1447 enum vxge_hw_status status
= VXGE_HW_OK
;
1448 struct macInfo mac_info
;
1449 u8
*mac_address
= NULL
;
1450 struct list_head
*entry
, *next
;
1452 memset(&mac_info
, 0, sizeof(struct macInfo
));
1454 if (vpath
->is_open
) {
1455 list_for_each_safe(entry
, next
, &vpath
->mac_addr_list
) {
1458 ((struct vxge_mac_addrs
*)entry
)->macaddr
;
1459 memcpy(mac_info
.macaddr
, mac_address
, ETH_ALEN
);
1460 ((struct vxge_mac_addrs
*)entry
)->state
=
1461 VXGE_LL_MAC_ADDR_IN_DA_TABLE
;
1462 /* does this mac address already exist in da table? */
1463 status
= vxge_search_mac_addr_in_da_table(vpath
,
1465 if (status
!= VXGE_HW_OK
) {
1466 /* Add this mac address to the DA table */
1467 status
= vxge_hw_vpath_mac_addr_add(
1468 vpath
->handle
, mac_info
.macaddr
,
1470 VXGE_HW_VPATH_MAC_ADDR_ADD_DUPLICATE
);
1471 if (status
!= VXGE_HW_OK
) {
1472 vxge_debug_init(VXGE_ERR
,
1473 "DA add entry failed for vpath:%d",
1475 ((struct vxge_mac_addrs
*)entry
)->state
1476 = VXGE_LL_MAC_ADDR_IN_LIST
;
1485 /* Store all vlan ids from the list to the vid table */
1486 static enum vxge_hw_status
1487 vxge_restore_vpath_vid_table(struct vxge_vpath
*vpath
)
1489 enum vxge_hw_status status
= VXGE_HW_OK
;
1490 struct vxgedev
*vdev
= vpath
->vdev
;
1493 if (!vpath
->is_open
)
1496 for_each_set_bit(vid
, vdev
->active_vlans
, VLAN_N_VID
)
1497 status
= vxge_hw_vpath_vid_add(vpath
->handle
, vid
);
1504 * @vdev: pointer to vdev
1505 * @vp_id: vpath to reset
1509 static int vxge_reset_vpath(struct vxgedev
*vdev
, int vp_id
)
1511 enum vxge_hw_status status
= VXGE_HW_OK
;
1512 struct vxge_vpath
*vpath
= &vdev
->vpaths
[vp_id
];
1515 /* check if device is down already */
1516 if (unlikely(!is_vxge_card_up(vdev
)))
1519 /* is device reset already scheduled */
1520 if (test_bit(__VXGE_STATE_RESET_CARD
, &vdev
->state
))
1523 if (vpath
->handle
) {
1524 if (vxge_hw_vpath_reset(vpath
->handle
) == VXGE_HW_OK
) {
1525 if (is_vxge_card_up(vdev
) &&
1526 vxge_hw_vpath_recover_from_reset(vpath
->handle
)
1528 vxge_debug_init(VXGE_ERR
,
1529 "vxge_hw_vpath_recover_from_reset"
1530 "failed for vpath:%d", vp_id
);
1534 vxge_debug_init(VXGE_ERR
,
1535 "vxge_hw_vpath_reset failed for"
1540 return VXGE_HW_FAIL
;
1542 vxge_restore_vpath_mac_addr(vpath
);
1543 vxge_restore_vpath_vid_table(vpath
);
1545 /* Enable all broadcast */
1546 vxge_hw_vpath_bcast_enable(vpath
->handle
);
1548 /* Enable all multicast */
1549 if (vdev
->all_multi_flg
) {
1550 status
= vxge_hw_vpath_mcast_enable(vpath
->handle
);
1551 if (status
!= VXGE_HW_OK
)
1552 vxge_debug_init(VXGE_ERR
,
1553 "%s:%d Enabling multicast failed",
1554 __func__
, __LINE__
);
1557 /* Enable the interrupts */
1558 vxge_vpath_intr_enable(vdev
, vp_id
);
1562 /* Enable the flow of traffic through the vpath */
1563 vxge_hw_vpath_enable(vpath
->handle
);
1566 vxge_hw_vpath_rx_doorbell_init(vpath
->handle
);
1567 vpath
->ring
.last_status
= VXGE_HW_OK
;
1569 /* Vpath reset done */
1570 clear_bit(vp_id
, &vdev
->vp_reset
);
1572 /* Start the vpath queue */
1573 if (netif_tx_queue_stopped(vpath
->fifo
.txq
))
1574 netif_tx_wake_queue(vpath
->fifo
.txq
);
1580 static void vxge_config_ci_for_tti_rti(struct vxgedev
*vdev
)
1584 /* Enable CI for RTI */
1585 if (vdev
->config
.intr_type
== MSI_X
) {
1586 for (i
= 0; i
< vdev
->no_of_vpath
; i
++) {
1587 struct __vxge_hw_ring
*hw_ring
;
1589 hw_ring
= vdev
->vpaths
[i
].ring
.handle
;
1590 vxge_hw_vpath_dynamic_rti_ci_set(hw_ring
);
1594 /* Enable CI for TTI */
1595 for (i
= 0; i
< vdev
->no_of_vpath
; i
++) {
1596 struct __vxge_hw_fifo
*hw_fifo
= vdev
->vpaths
[i
].fifo
.handle
;
1597 vxge_hw_vpath_tti_ci_set(hw_fifo
);
1599 * For Inta (with or without napi), Set CI ON for only one
1600 * vpath. (Have only one free running timer).
1602 if ((vdev
->config
.intr_type
== INTA
) && (i
== 0))
1609 static int do_vxge_reset(struct vxgedev
*vdev
, int event
)
1611 enum vxge_hw_status status
;
1612 int ret
= 0, vp_id
, i
;
1614 vxge_debug_entryexit(VXGE_TRACE
, "%s:%d", __func__
, __LINE__
);
1616 if ((event
== VXGE_LL_FULL_RESET
) || (event
== VXGE_LL_START_RESET
)) {
1617 /* check if device is down already */
1618 if (unlikely(!is_vxge_card_up(vdev
)))
1621 /* is reset already scheduled */
1622 if (test_and_set_bit(__VXGE_STATE_RESET_CARD
, &vdev
->state
))
1626 if (event
== VXGE_LL_FULL_RESET
) {
1627 netif_carrier_off(vdev
->ndev
);
1629 /* wait for all the vpath reset to complete */
1630 for (vp_id
= 0; vp_id
< vdev
->no_of_vpath
; vp_id
++) {
1631 while (test_bit(vp_id
, &vdev
->vp_reset
))
1635 netif_carrier_on(vdev
->ndev
);
1637 /* if execution mode is set to debug, don't reset the adapter */
1638 if (unlikely(vdev
->exec_mode
)) {
1639 vxge_debug_init(VXGE_ERR
,
1640 "%s: execution mode is debug, returning..",
1642 clear_bit(__VXGE_STATE_CARD_UP
, &vdev
->state
);
1643 netif_tx_stop_all_queues(vdev
->ndev
);
1648 if (event
== VXGE_LL_FULL_RESET
) {
1649 vxge_hw_device_wait_receive_idle(vdev
->devh
);
1650 vxge_hw_device_intr_disable(vdev
->devh
);
1652 switch (vdev
->cric_err_event
) {
1653 case VXGE_HW_EVENT_UNKNOWN
:
1654 netif_tx_stop_all_queues(vdev
->ndev
);
1655 vxge_debug_init(VXGE_ERR
,
1656 "fatal: %s: Disabling device due to"
1661 case VXGE_HW_EVENT_RESET_START
:
1663 case VXGE_HW_EVENT_RESET_COMPLETE
:
1664 case VXGE_HW_EVENT_LINK_DOWN
:
1665 case VXGE_HW_EVENT_LINK_UP
:
1666 case VXGE_HW_EVENT_ALARM_CLEARED
:
1667 case VXGE_HW_EVENT_ECCERR
:
1668 case VXGE_HW_EVENT_MRPCIM_ECCERR
:
1671 case VXGE_HW_EVENT_FIFO_ERR
:
1672 case VXGE_HW_EVENT_VPATH_ERR
:
1674 case VXGE_HW_EVENT_CRITICAL_ERR
:
1675 netif_tx_stop_all_queues(vdev
->ndev
);
1676 vxge_debug_init(VXGE_ERR
,
1677 "fatal: %s: Disabling device due to"
1680 /* SOP or device reset required */
1681 /* This event is not currently used */
1684 case VXGE_HW_EVENT_SERR
:
1685 netif_tx_stop_all_queues(vdev
->ndev
);
1686 vxge_debug_init(VXGE_ERR
,
1687 "fatal: %s: Disabling device due to"
1692 case VXGE_HW_EVENT_SRPCIM_SERR
:
1693 case VXGE_HW_EVENT_MRPCIM_SERR
:
1696 case VXGE_HW_EVENT_SLOT_FREEZE
:
1697 netif_tx_stop_all_queues(vdev
->ndev
);
1698 vxge_debug_init(VXGE_ERR
,
1699 "fatal: %s: Disabling device due to"
1710 if ((event
== VXGE_LL_FULL_RESET
) || (event
== VXGE_LL_START_RESET
))
1711 netif_tx_stop_all_queues(vdev
->ndev
);
1713 if (event
== VXGE_LL_FULL_RESET
) {
1714 status
= vxge_reset_all_vpaths(vdev
);
1715 if (status
!= VXGE_HW_OK
) {
1716 vxge_debug_init(VXGE_ERR
,
1717 "fatal: %s: can not reset vpaths",
1724 if (event
== VXGE_LL_COMPL_RESET
) {
1725 for (i
= 0; i
< vdev
->no_of_vpath
; i
++)
1726 if (vdev
->vpaths
[i
].handle
) {
1727 if (vxge_hw_vpath_recover_from_reset(
1728 vdev
->vpaths
[i
].handle
)
1730 vxge_debug_init(VXGE_ERR
,
1731 "vxge_hw_vpath_recover_"
1732 "from_reset failed for vpath: "
1738 vxge_debug_init(VXGE_ERR
,
1739 "vxge_hw_vpath_reset failed for "
1746 if ((event
== VXGE_LL_FULL_RESET
) || (event
== VXGE_LL_COMPL_RESET
)) {
1747 /* Reprogram the DA table with populated mac addresses */
1748 for (vp_id
= 0; vp_id
< vdev
->no_of_vpath
; vp_id
++) {
1749 vxge_restore_vpath_mac_addr(&vdev
->vpaths
[vp_id
]);
1750 vxge_restore_vpath_vid_table(&vdev
->vpaths
[vp_id
]);
1753 /* enable vpath interrupts */
1754 for (i
= 0; i
< vdev
->no_of_vpath
; i
++)
1755 vxge_vpath_intr_enable(vdev
, i
);
1757 vxge_hw_device_intr_enable(vdev
->devh
);
1761 /* Indicate card up */
1762 set_bit(__VXGE_STATE_CARD_UP
, &vdev
->state
);
1764 /* Get the traffic to flow through the vpaths */
1765 for (i
= 0; i
< vdev
->no_of_vpath
; i
++) {
1766 vxge_hw_vpath_enable(vdev
->vpaths
[i
].handle
);
1768 vxge_hw_vpath_rx_doorbell_init(vdev
->vpaths
[i
].handle
);
1771 netif_tx_wake_all_queues(vdev
->ndev
);
1775 vxge_config_ci_for_tti_rti(vdev
);
1778 vxge_debug_entryexit(VXGE_TRACE
,
1779 "%s:%d Exiting...", __func__
, __LINE__
);
1781 /* Indicate reset done */
1782 if ((event
== VXGE_LL_FULL_RESET
) || (event
== VXGE_LL_COMPL_RESET
))
1783 clear_bit(__VXGE_STATE_RESET_CARD
, &vdev
->state
);
1789 * @vdev: pointer to ll device
1791 * driver may reset the chip on events of serr, eccerr, etc
1793 static void vxge_reset(struct work_struct
*work
)
1795 struct vxgedev
*vdev
= container_of(work
, struct vxgedev
, reset_task
);
1797 if (!netif_running(vdev
->ndev
))
1800 do_vxge_reset(vdev
, VXGE_LL_FULL_RESET
);
1804 * vxge_poll - Receive handler when Receive Polling is used.
1805 * @dev: pointer to the device structure.
1806 * @budget: Number of packets budgeted to be processed in this iteration.
1808 * This function comes into picture only if Receive side is being handled
1809 * through polling (called NAPI in linux). It mostly does what the normal
1810 * Rx interrupt handler does in terms of descriptor and packet processing
1811 * but not in an interrupt context. Also it will process a specified number
1812 * of packets at most in one iteration. This value is passed down by the
1813 * kernel as the function argument 'budget'.
1815 static int vxge_poll_msix(struct napi_struct
*napi
, int budget
)
1817 struct vxge_ring
*ring
= container_of(napi
, struct vxge_ring
, napi
);
1819 int budget_org
= budget
;
1821 ring
->budget
= budget
;
1822 ring
->pkts_processed
= 0;
1823 vxge_hw_vpath_poll_rx(ring
->handle
);
1824 pkts_processed
= ring
->pkts_processed
;
1826 if (pkts_processed
< budget_org
) {
1827 napi_complete_done(napi
, pkts_processed
);
1829 /* Re enable the Rx interrupts for the vpath */
1830 vxge_hw_channel_msix_unmask(
1831 (struct __vxge_hw_channel
*)ring
->handle
,
1832 ring
->rx_vector_no
);
1836 /* We are copying and returning the local variable, in case if after
1837 * clearing the msix interrupt above, if the interrupt fires right
1838 * away which can preempt this NAPI thread */
1839 return pkts_processed
;
1842 static int vxge_poll_inta(struct napi_struct
*napi
, int budget
)
1844 struct vxgedev
*vdev
= container_of(napi
, struct vxgedev
, napi
);
1845 int pkts_processed
= 0;
1847 int budget_org
= budget
;
1848 struct vxge_ring
*ring
;
1850 struct __vxge_hw_device
*hldev
= pci_get_drvdata(vdev
->pdev
);
1852 for (i
= 0; i
< vdev
->no_of_vpath
; i
++) {
1853 ring
= &vdev
->vpaths
[i
].ring
;
1854 ring
->budget
= budget
;
1855 ring
->pkts_processed
= 0;
1856 vxge_hw_vpath_poll_rx(ring
->handle
);
1857 pkts_processed
+= ring
->pkts_processed
;
1858 budget
-= ring
->pkts_processed
;
1863 VXGE_COMPLETE_ALL_TX(vdev
);
1865 if (pkts_processed
< budget_org
) {
1866 napi_complete_done(napi
, pkts_processed
);
1867 /* Re enable the Rx interrupts for the ring */
1868 vxge_hw_device_unmask_all(hldev
);
1869 vxge_hw_device_flush_io(hldev
);
1872 return pkts_processed
;
1875 #ifdef CONFIG_NET_POLL_CONTROLLER
1877 * vxge_netpoll - netpoll event handler entry point
1878 * @dev : pointer to the device structure.
1880 * This function will be called by upper layer to check for events on the
1881 * interface in situations where interrupts are disabled. It is used for
1882 * specific in-kernel networking tasks, such as remote consoles and kernel
1883 * debugging over the network (example netdump in RedHat).
1885 static void vxge_netpoll(struct net_device
*dev
)
1887 struct vxgedev
*vdev
= netdev_priv(dev
);
1888 struct pci_dev
*pdev
= vdev
->pdev
;
1889 struct __vxge_hw_device
*hldev
= pci_get_drvdata(pdev
);
1890 const int irq
= pdev
->irq
;
1892 vxge_debug_entryexit(VXGE_TRACE
, "%s:%d", __func__
, __LINE__
);
1894 if (pci_channel_offline(pdev
))
1898 vxge_hw_device_clear_tx_rx(hldev
);
1900 vxge_hw_device_clear_tx_rx(hldev
);
1901 VXGE_COMPLETE_ALL_RX(vdev
);
1902 VXGE_COMPLETE_ALL_TX(vdev
);
1906 vxge_debug_entryexit(VXGE_TRACE
,
1907 "%s:%d Exiting...", __func__
, __LINE__
);
1911 /* RTH configuration */
1912 static enum vxge_hw_status
vxge_rth_configure(struct vxgedev
*vdev
)
1914 enum vxge_hw_status status
= VXGE_HW_OK
;
1915 struct vxge_hw_rth_hash_types hash_types
;
1916 u8 itable
[256] = {0}; /* indirection table */
1917 u8 mtable
[256] = {0}; /* CPU to vpath mapping */
1922 * - itable with bucket numbers
1923 * - mtable with bucket-to-vpath mapping
1925 for (index
= 0; index
< (1 << vdev
->config
.rth_bkt_sz
); index
++) {
1926 itable
[index
] = index
;
1927 mtable
[index
] = index
% vdev
->no_of_vpath
;
1930 /* set indirection table, bucket-to-vpath mapping */
1931 status
= vxge_hw_vpath_rts_rth_itable_set(vdev
->vp_handles
,
1934 vdev
->config
.rth_bkt_sz
);
1935 if (status
!= VXGE_HW_OK
) {
1936 vxge_debug_init(VXGE_ERR
,
1937 "RTH indirection table configuration failed "
1938 "for vpath:%d", vdev
->vpaths
[0].device_id
);
1942 /* Fill RTH hash types */
1943 hash_types
.hash_type_tcpipv4_en
= vdev
->config
.rth_hash_type_tcpipv4
;
1944 hash_types
.hash_type_ipv4_en
= vdev
->config
.rth_hash_type_ipv4
;
1945 hash_types
.hash_type_tcpipv6_en
= vdev
->config
.rth_hash_type_tcpipv6
;
1946 hash_types
.hash_type_ipv6_en
= vdev
->config
.rth_hash_type_ipv6
;
1947 hash_types
.hash_type_tcpipv6ex_en
=
1948 vdev
->config
.rth_hash_type_tcpipv6ex
;
1949 hash_types
.hash_type_ipv6ex_en
= vdev
->config
.rth_hash_type_ipv6ex
;
1952 * Because the itable_set() method uses the active_table field
1953 * for the target virtual path the RTH config should be updated
1954 * for all VPATHs. The h/w only uses the lowest numbered VPATH
1955 * when steering frames.
1957 for (index
= 0; index
< vdev
->no_of_vpath
; index
++) {
1958 status
= vxge_hw_vpath_rts_rth_set(
1959 vdev
->vpaths
[index
].handle
,
1960 vdev
->config
.rth_algorithm
,
1962 vdev
->config
.rth_bkt_sz
);
1963 if (status
!= VXGE_HW_OK
) {
1964 vxge_debug_init(VXGE_ERR
,
1965 "RTH configuration failed for vpath:%d",
1966 vdev
->vpaths
[index
].device_id
);
1975 static enum vxge_hw_status
vxge_reset_all_vpaths(struct vxgedev
*vdev
)
1977 enum vxge_hw_status status
= VXGE_HW_OK
;
1978 struct vxge_vpath
*vpath
;
1981 for (i
= 0; i
< vdev
->no_of_vpath
; i
++) {
1982 vpath
= &vdev
->vpaths
[i
];
1983 if (vpath
->handle
) {
1984 if (vxge_hw_vpath_reset(vpath
->handle
) == VXGE_HW_OK
) {
1985 if (is_vxge_card_up(vdev
) &&
1986 vxge_hw_vpath_recover_from_reset(
1987 vpath
->handle
) != VXGE_HW_OK
) {
1988 vxge_debug_init(VXGE_ERR
,
1989 "vxge_hw_vpath_recover_"
1990 "from_reset failed for vpath: "
1995 vxge_debug_init(VXGE_ERR
,
1996 "vxge_hw_vpath_reset failed for "
2007 static void vxge_close_vpaths(struct vxgedev
*vdev
, int index
)
2009 struct vxge_vpath
*vpath
;
2012 for (i
= index
; i
< vdev
->no_of_vpath
; i
++) {
2013 vpath
= &vdev
->vpaths
[i
];
2015 if (vpath
->handle
&& vpath
->is_open
) {
2016 vxge_hw_vpath_close(vpath
->handle
);
2017 vdev
->stats
.vpaths_open
--;
2020 vpath
->handle
= NULL
;
2025 static int vxge_open_vpaths(struct vxgedev
*vdev
)
2027 struct vxge_hw_vpath_attr attr
;
2028 enum vxge_hw_status status
;
2029 struct vxge_vpath
*vpath
;
2033 for (i
= 0; i
< vdev
->no_of_vpath
; i
++) {
2034 vpath
= &vdev
->vpaths
[i
];
2035 vxge_assert(vpath
->is_configured
);
2037 if (!vdev
->titan1
) {
2038 struct vxge_hw_vp_config
*vcfg
;
2039 vcfg
= &vdev
->devh
->config
.vp_config
[vpath
->device_id
];
2041 vcfg
->rti
.urange_a
= RTI_T1A_RX_URANGE_A
;
2042 vcfg
->rti
.urange_b
= RTI_T1A_RX_URANGE_B
;
2043 vcfg
->rti
.urange_c
= RTI_T1A_RX_URANGE_C
;
2044 vcfg
->tti
.uec_a
= TTI_T1A_TX_UFC_A
;
2045 vcfg
->tti
.uec_b
= TTI_T1A_TX_UFC_B
;
2046 vcfg
->tti
.uec_c
= TTI_T1A_TX_UFC_C(vdev
->mtu
);
2047 vcfg
->tti
.uec_d
= TTI_T1A_TX_UFC_D(vdev
->mtu
);
2048 vcfg
->tti
.ltimer_val
= VXGE_T1A_TTI_LTIMER_VAL
;
2049 vcfg
->tti
.rtimer_val
= VXGE_T1A_TTI_RTIMER_VAL
;
2052 attr
.vp_id
= vpath
->device_id
;
2053 attr
.fifo_attr
.callback
= vxge_xmit_compl
;
2054 attr
.fifo_attr
.txdl_term
= vxge_tx_term
;
2055 attr
.fifo_attr
.per_txdl_space
= sizeof(struct vxge_tx_priv
);
2056 attr
.fifo_attr
.userdata
= &vpath
->fifo
;
2058 attr
.ring_attr
.callback
= vxge_rx_1b_compl
;
2059 attr
.ring_attr
.rxd_init
= vxge_rx_initial_replenish
;
2060 attr
.ring_attr
.rxd_term
= vxge_rx_term
;
2061 attr
.ring_attr
.per_rxd_space
= sizeof(struct vxge_rx_priv
);
2062 attr
.ring_attr
.userdata
= &vpath
->ring
;
2064 vpath
->ring
.ndev
= vdev
->ndev
;
2065 vpath
->ring
.pdev
= vdev
->pdev
;
2067 status
= vxge_hw_vpath_open(vdev
->devh
, &attr
, &vpath
->handle
);
2068 if (status
== VXGE_HW_OK
) {
2069 vpath
->fifo
.handle
=
2070 (struct __vxge_hw_fifo
*)attr
.fifo_attr
.userdata
;
2071 vpath
->ring
.handle
=
2072 (struct __vxge_hw_ring
*)attr
.ring_attr
.userdata
;
2073 vpath
->fifo
.tx_steering_type
=
2074 vdev
->config
.tx_steering_type
;
2075 vpath
->fifo
.ndev
= vdev
->ndev
;
2076 vpath
->fifo
.pdev
= vdev
->pdev
;
2078 u64_stats_init(&vpath
->fifo
.stats
.syncp
);
2079 u64_stats_init(&vpath
->ring
.stats
.syncp
);
2081 if (vdev
->config
.tx_steering_type
)
2083 netdev_get_tx_queue(vdev
->ndev
, i
);
2086 netdev_get_tx_queue(vdev
->ndev
, 0);
2087 vpath
->fifo
.indicate_max_pkts
=
2088 vdev
->config
.fifo_indicate_max_pkts
;
2089 vpath
->fifo
.tx_vector_no
= 0;
2090 vpath
->ring
.rx_vector_no
= 0;
2091 vpath
->ring
.rx_hwts
= vdev
->rx_hwts
;
2093 vdev
->vp_handles
[i
] = vpath
->handle
;
2094 vpath
->ring
.vlan_tag_strip
= vdev
->vlan_tag_strip
;
2095 vdev
->stats
.vpaths_open
++;
2097 vdev
->stats
.vpath_open_fail
++;
2098 vxge_debug_init(VXGE_ERR
, "%s: vpath: %d failed to "
2099 "open with status: %d",
2100 vdev
->ndev
->name
, vpath
->device_id
,
2102 vxge_close_vpaths(vdev
, 0);
2106 vp_id
= vpath
->handle
->vpath
->vp_id
;
2107 vdev
->vpaths_deployed
|= vxge_mBIT(vp_id
);
2114 * adaptive_coalesce_tx_interrupts - Changes the interrupt coalescing
2115 * if the interrupts are not within a range
2116 * @fifo: pointer to transmit fifo structure
2117 * Description: The function changes boundary timer and restriction timer
2118 * value depends on the traffic
2119 * Return Value: None
2121 static void adaptive_coalesce_tx_interrupts(struct vxge_fifo
*fifo
)
2123 fifo
->interrupt_count
++;
2124 if (time_before(fifo
->jiffies
+ HZ
/ 100, jiffies
)) {
2125 struct __vxge_hw_fifo
*hw_fifo
= fifo
->handle
;
2127 fifo
->jiffies
= jiffies
;
2128 if (fifo
->interrupt_count
> VXGE_T1A_MAX_TX_INTERRUPT_COUNT
&&
2129 hw_fifo
->rtimer
!= VXGE_TTI_RTIMER_ADAPT_VAL
) {
2130 hw_fifo
->rtimer
= VXGE_TTI_RTIMER_ADAPT_VAL
;
2131 vxge_hw_vpath_dynamic_tti_rtimer_set(hw_fifo
);
2132 } else if (hw_fifo
->rtimer
!= 0) {
2133 hw_fifo
->rtimer
= 0;
2134 vxge_hw_vpath_dynamic_tti_rtimer_set(hw_fifo
);
2136 fifo
->interrupt_count
= 0;
2141 * adaptive_coalesce_rx_interrupts - Changes the interrupt coalescing
2142 * if the interrupts are not within a range
2143 * @ring: pointer to receive ring structure
2144 * Description: The function increases of decreases the packet counts within
2145 * the ranges of traffic utilization, if the interrupts due to this ring are
2146 * not within a fixed range.
2147 * Return Value: Nothing
2149 static void adaptive_coalesce_rx_interrupts(struct vxge_ring
*ring
)
2151 ring
->interrupt_count
++;
2152 if (time_before(ring
->jiffies
+ HZ
/ 100, jiffies
)) {
2153 struct __vxge_hw_ring
*hw_ring
= ring
->handle
;
2155 ring
->jiffies
= jiffies
;
2156 if (ring
->interrupt_count
> VXGE_T1A_MAX_INTERRUPT_COUNT
&&
2157 hw_ring
->rtimer
!= VXGE_RTI_RTIMER_ADAPT_VAL
) {
2158 hw_ring
->rtimer
= VXGE_RTI_RTIMER_ADAPT_VAL
;
2159 vxge_hw_vpath_dynamic_rti_rtimer_set(hw_ring
);
2160 } else if (hw_ring
->rtimer
!= 0) {
2161 hw_ring
->rtimer
= 0;
2162 vxge_hw_vpath_dynamic_rti_rtimer_set(hw_ring
);
2164 ring
->interrupt_count
= 0;
2170 * @irq: the irq of the device.
2171 * @dev_id: a void pointer to the hldev structure of the Titan device
2172 * @ptregs: pointer to the registers pushed on the stack.
2174 * This function is the ISR handler of the device when napi is enabled. It
2175 * identifies the reason for the interrupt and calls the relevant service
2178 static irqreturn_t
vxge_isr_napi(int irq
, void *dev_id
)
2180 struct net_device
*dev
;
2181 struct __vxge_hw_device
*hldev
;
2183 enum vxge_hw_status status
;
2184 struct vxgedev
*vdev
= (struct vxgedev
*)dev_id
;
2186 vxge_debug_intr(VXGE_TRACE
, "%s:%d", __func__
, __LINE__
);
2189 hldev
= pci_get_drvdata(vdev
->pdev
);
2191 if (pci_channel_offline(vdev
->pdev
))
2194 if (unlikely(!is_vxge_card_up(vdev
)))
2197 status
= vxge_hw_device_begin_irq(hldev
, vdev
->exec_mode
, &reason
);
2198 if (status
== VXGE_HW_OK
) {
2199 vxge_hw_device_mask_all(hldev
);
2202 VXGE_HW_TITAN_GENERAL_INT_STATUS_VPATH_TRAFFIC_INT(
2203 vdev
->vpaths_deployed
>>
2204 (64 - VXGE_HW_MAX_VIRTUAL_PATHS
))) {
2206 vxge_hw_device_clear_tx_rx(hldev
);
2207 napi_schedule(&vdev
->napi
);
2208 vxge_debug_intr(VXGE_TRACE
,
2209 "%s:%d Exiting...", __func__
, __LINE__
);
2212 vxge_hw_device_unmask_all(hldev
);
2213 } else if (unlikely((status
== VXGE_HW_ERR_VPATH
) ||
2214 (status
== VXGE_HW_ERR_CRITICAL
) ||
2215 (status
== VXGE_HW_ERR_FIFO
))) {
2216 vxge_hw_device_mask_all(hldev
);
2217 vxge_hw_device_flush_io(hldev
);
2219 } else if (unlikely(status
== VXGE_HW_ERR_SLOT_FREEZE
))
2222 vxge_debug_intr(VXGE_TRACE
, "%s:%d Exiting...", __func__
, __LINE__
);
2226 static irqreturn_t
vxge_tx_msix_handle(int irq
, void *dev_id
)
2228 struct vxge_fifo
*fifo
= (struct vxge_fifo
*)dev_id
;
2230 adaptive_coalesce_tx_interrupts(fifo
);
2232 vxge_hw_channel_msix_mask((struct __vxge_hw_channel
*)fifo
->handle
,
2233 fifo
->tx_vector_no
);
2235 vxge_hw_channel_msix_clear((struct __vxge_hw_channel
*)fifo
->handle
,
2236 fifo
->tx_vector_no
);
2238 VXGE_COMPLETE_VPATH_TX(fifo
);
2240 vxge_hw_channel_msix_unmask((struct __vxge_hw_channel
*)fifo
->handle
,
2241 fifo
->tx_vector_no
);
2248 static irqreturn_t
vxge_rx_msix_napi_handle(int irq
, void *dev_id
)
2250 struct vxge_ring
*ring
= (struct vxge_ring
*)dev_id
;
2252 adaptive_coalesce_rx_interrupts(ring
);
2254 vxge_hw_channel_msix_mask((struct __vxge_hw_channel
*)ring
->handle
,
2255 ring
->rx_vector_no
);
2257 vxge_hw_channel_msix_clear((struct __vxge_hw_channel
*)ring
->handle
,
2258 ring
->rx_vector_no
);
2260 napi_schedule(&ring
->napi
);
2265 vxge_alarm_msix_handle(int irq
, void *dev_id
)
2268 enum vxge_hw_status status
;
2269 struct vxge_vpath
*vpath
= (struct vxge_vpath
*)dev_id
;
2270 struct vxgedev
*vdev
= vpath
->vdev
;
2271 int msix_id
= (vpath
->handle
->vpath
->vp_id
*
2272 VXGE_HW_VPATH_MSIX_ACTIVE
) + VXGE_ALARM_MSIX_ID
;
2274 for (i
= 0; i
< vdev
->no_of_vpath
; i
++) {
2275 /* Reduce the chance of losing alarm interrupts by masking
2276 * the vector. A pending bit will be set if an alarm is
2277 * generated and on unmask the interrupt will be fired.
2279 vxge_hw_vpath_msix_mask(vdev
->vpaths
[i
].handle
, msix_id
);
2280 vxge_hw_vpath_msix_clear(vdev
->vpaths
[i
].handle
, msix_id
);
2283 status
= vxge_hw_vpath_alarm_process(vdev
->vpaths
[i
].handle
,
2285 if (status
== VXGE_HW_OK
) {
2286 vxge_hw_vpath_msix_unmask(vdev
->vpaths
[i
].handle
,
2291 vxge_debug_intr(VXGE_ERR
,
2292 "%s: vxge_hw_vpath_alarm_process failed %x ",
2293 VXGE_DRIVER_NAME
, status
);
2298 static int vxge_alloc_msix(struct vxgedev
*vdev
)
2301 int msix_intr_vect
= 0, temp
;
2305 /* Tx/Rx MSIX Vectors count */
2306 vdev
->intr_cnt
= vdev
->no_of_vpath
* 2;
2308 /* Alarm MSIX Vectors count */
2311 vdev
->entries
= kcalloc(vdev
->intr_cnt
, sizeof(struct msix_entry
),
2313 if (!vdev
->entries
) {
2314 vxge_debug_init(VXGE_ERR
,
2315 "%s: memory allocation failed",
2318 goto alloc_entries_failed
;
2321 vdev
->vxge_entries
= kcalloc(vdev
->intr_cnt
,
2322 sizeof(struct vxge_msix_entry
),
2324 if (!vdev
->vxge_entries
) {
2325 vxge_debug_init(VXGE_ERR
, "%s: memory allocation failed",
2328 goto alloc_vxge_entries_failed
;
2331 for (i
= 0, j
= 0; i
< vdev
->no_of_vpath
; i
++) {
2333 msix_intr_vect
= i
* VXGE_HW_VPATH_MSIX_ACTIVE
;
2335 /* Initialize the fifo vector */
2336 vdev
->entries
[j
].entry
= msix_intr_vect
;
2337 vdev
->vxge_entries
[j
].entry
= msix_intr_vect
;
2338 vdev
->vxge_entries
[j
].in_use
= 0;
2341 /* Initialize the ring vector */
2342 vdev
->entries
[j
].entry
= msix_intr_vect
+ 1;
2343 vdev
->vxge_entries
[j
].entry
= msix_intr_vect
+ 1;
2344 vdev
->vxge_entries
[j
].in_use
= 0;
2348 /* Initialize the alarm vector */
2349 vdev
->entries
[j
].entry
= VXGE_ALARM_MSIX_ID
;
2350 vdev
->vxge_entries
[j
].entry
= VXGE_ALARM_MSIX_ID
;
2351 vdev
->vxge_entries
[j
].in_use
= 0;
2353 ret
= pci_enable_msix_range(vdev
->pdev
,
2354 vdev
->entries
, 3, vdev
->intr_cnt
);
2357 goto enable_msix_failed
;
2358 } else if (ret
< vdev
->intr_cnt
) {
2359 pci_disable_msix(vdev
->pdev
);
2361 vxge_debug_init(VXGE_ERR
,
2362 "%s: MSI-X enable failed for %d vectors, ret: %d",
2363 VXGE_DRIVER_NAME
, vdev
->intr_cnt
, ret
);
2364 if (max_config_vpath
!= VXGE_USE_DEFAULT
) {
2366 goto enable_msix_failed
;
2369 kfree(vdev
->entries
);
2370 kfree(vdev
->vxge_entries
);
2371 vdev
->entries
= NULL
;
2372 vdev
->vxge_entries
= NULL
;
2373 /* Try with less no of vector by reducing no of vpaths count */
2375 vxge_close_vpaths(vdev
, temp
);
2376 vdev
->no_of_vpath
= temp
;
2382 kfree(vdev
->vxge_entries
);
2383 alloc_vxge_entries_failed
:
2384 kfree(vdev
->entries
);
2385 alloc_entries_failed
:
2389 static int vxge_enable_msix(struct vxgedev
*vdev
)
2393 /* 0 - Tx, 1 - Rx */
2394 int tim_msix_id
[4] = {0, 1, 0, 0};
2398 /* allocate msix vectors */
2399 ret
= vxge_alloc_msix(vdev
);
2401 for (i
= 0; i
< vdev
->no_of_vpath
; i
++) {
2402 struct vxge_vpath
*vpath
= &vdev
->vpaths
[i
];
2404 /* If fifo or ring are not enabled, the MSIX vector for
2405 * it should be set to 0.
2407 vpath
->ring
.rx_vector_no
= (vpath
->device_id
*
2408 VXGE_HW_VPATH_MSIX_ACTIVE
) + 1;
2410 vpath
->fifo
.tx_vector_no
= (vpath
->device_id
*
2411 VXGE_HW_VPATH_MSIX_ACTIVE
);
2413 vxge_hw_vpath_msix_set(vpath
->handle
, tim_msix_id
,
2414 VXGE_ALARM_MSIX_ID
);
2421 static void vxge_rem_msix_isr(struct vxgedev
*vdev
)
2425 for (intr_cnt
= 0; intr_cnt
< (vdev
->no_of_vpath
* 2 + 1);
2427 if (vdev
->vxge_entries
[intr_cnt
].in_use
) {
2428 synchronize_irq(vdev
->entries
[intr_cnt
].vector
);
2429 free_irq(vdev
->entries
[intr_cnt
].vector
,
2430 vdev
->vxge_entries
[intr_cnt
].arg
);
2431 vdev
->vxge_entries
[intr_cnt
].in_use
= 0;
2435 kfree(vdev
->entries
);
2436 kfree(vdev
->vxge_entries
);
2437 vdev
->entries
= NULL
;
2438 vdev
->vxge_entries
= NULL
;
2440 if (vdev
->config
.intr_type
== MSI_X
)
2441 pci_disable_msix(vdev
->pdev
);
2444 static void vxge_rem_isr(struct vxgedev
*vdev
)
2446 if (IS_ENABLED(CONFIG_PCI_MSI
) &&
2447 vdev
->config
.intr_type
== MSI_X
) {
2448 vxge_rem_msix_isr(vdev
);
2449 } else if (vdev
->config
.intr_type
== INTA
) {
2450 synchronize_irq(vdev
->pdev
->irq
);
2451 free_irq(vdev
->pdev
->irq
, vdev
);
2455 static int vxge_add_isr(struct vxgedev
*vdev
)
2458 int vp_idx
= 0, intr_idx
= 0, intr_cnt
= 0, msix_idx
= 0, irq_req
= 0;
2459 int pci_fun
= PCI_FUNC(vdev
->pdev
->devfn
);
2461 if (IS_ENABLED(CONFIG_PCI_MSI
) && vdev
->config
.intr_type
== MSI_X
)
2462 ret
= vxge_enable_msix(vdev
);
2465 vxge_debug_init(VXGE_ERR
,
2466 "%s: Enabling MSI-X Failed", VXGE_DRIVER_NAME
);
2467 vxge_debug_init(VXGE_ERR
,
2468 "%s: Defaulting to INTA", VXGE_DRIVER_NAME
);
2469 vdev
->config
.intr_type
= INTA
;
2472 if (IS_ENABLED(CONFIG_PCI_MSI
) && vdev
->config
.intr_type
== MSI_X
) {
2474 intr_idx
< (vdev
->no_of_vpath
*
2475 VXGE_HW_VPATH_MSIX_ACTIVE
); intr_idx
++) {
2477 msix_idx
= intr_idx
% VXGE_HW_VPATH_MSIX_ACTIVE
;
2482 snprintf(vdev
->desc
[intr_cnt
], VXGE_INTR_STRLEN
,
2483 "%s:vxge:MSI-X %d - Tx - fn:%d vpath:%d",
2485 vdev
->entries
[intr_cnt
].entry
,
2488 vdev
->entries
[intr_cnt
].vector
,
2489 vxge_tx_msix_handle
, 0,
2490 vdev
->desc
[intr_cnt
],
2491 &vdev
->vpaths
[vp_idx
].fifo
);
2492 vdev
->vxge_entries
[intr_cnt
].arg
=
2493 &vdev
->vpaths
[vp_idx
].fifo
;
2497 snprintf(vdev
->desc
[intr_cnt
], VXGE_INTR_STRLEN
,
2498 "%s:vxge:MSI-X %d - Rx - fn:%d vpath:%d",
2500 vdev
->entries
[intr_cnt
].entry
,
2503 vdev
->entries
[intr_cnt
].vector
,
2504 vxge_rx_msix_napi_handle
,
2506 vdev
->desc
[intr_cnt
],
2507 &vdev
->vpaths
[vp_idx
].ring
);
2508 vdev
->vxge_entries
[intr_cnt
].arg
=
2509 &vdev
->vpaths
[vp_idx
].ring
;
2515 vxge_debug_init(VXGE_ERR
,
2516 "%s: MSIX - %d Registration failed",
2517 vdev
->ndev
->name
, intr_cnt
);
2518 vxge_rem_msix_isr(vdev
);
2519 vdev
->config
.intr_type
= INTA
;
2520 vxge_debug_init(VXGE_ERR
,
2521 "%s: Defaulting to INTA"
2522 , vdev
->ndev
->name
);
2527 /* We requested for this msix interrupt */
2528 vdev
->vxge_entries
[intr_cnt
].in_use
= 1;
2529 msix_idx
+= vdev
->vpaths
[vp_idx
].device_id
*
2530 VXGE_HW_VPATH_MSIX_ACTIVE
;
2531 vxge_hw_vpath_msix_unmask(
2532 vdev
->vpaths
[vp_idx
].handle
,
2537 /* Point to next vpath handler */
2538 if (((intr_idx
+ 1) % VXGE_HW_VPATH_MSIX_ACTIVE
== 0) &&
2539 (vp_idx
< (vdev
->no_of_vpath
- 1)))
2543 intr_cnt
= vdev
->no_of_vpath
* 2;
2544 snprintf(vdev
->desc
[intr_cnt
], VXGE_INTR_STRLEN
,
2545 "%s:vxge:MSI-X %d - Alarm - fn:%d",
2547 vdev
->entries
[intr_cnt
].entry
,
2549 /* For Alarm interrupts */
2550 ret
= request_irq(vdev
->entries
[intr_cnt
].vector
,
2551 vxge_alarm_msix_handle
, 0,
2552 vdev
->desc
[intr_cnt
],
2555 vxge_debug_init(VXGE_ERR
,
2556 "%s: MSIX - %d Registration failed",
2557 vdev
->ndev
->name
, intr_cnt
);
2558 vxge_rem_msix_isr(vdev
);
2559 vdev
->config
.intr_type
= INTA
;
2560 vxge_debug_init(VXGE_ERR
,
2561 "%s: Defaulting to INTA",
2566 msix_idx
= (vdev
->vpaths
[0].handle
->vpath
->vp_id
*
2567 VXGE_HW_VPATH_MSIX_ACTIVE
) + VXGE_ALARM_MSIX_ID
;
2568 vxge_hw_vpath_msix_unmask(vdev
->vpaths
[vp_idx
].handle
,
2570 vdev
->vxge_entries
[intr_cnt
].in_use
= 1;
2571 vdev
->vxge_entries
[intr_cnt
].arg
= &vdev
->vpaths
[0];
2575 if (vdev
->config
.intr_type
== INTA
) {
2576 snprintf(vdev
->desc
[0], VXGE_INTR_STRLEN
,
2577 "%s:vxge:INTA", vdev
->ndev
->name
);
2578 vxge_hw_device_set_intr_type(vdev
->devh
,
2579 VXGE_HW_INTR_MODE_IRQLINE
);
2581 vxge_hw_vpath_tti_ci_set(vdev
->vpaths
[0].fifo
.handle
);
2583 ret
= request_irq((int) vdev
->pdev
->irq
,
2585 IRQF_SHARED
, vdev
->desc
[0], vdev
);
2587 vxge_debug_init(VXGE_ERR
,
2588 "%s %s-%d: ISR registration failed",
2589 VXGE_DRIVER_NAME
, "IRQ", vdev
->pdev
->irq
);
2592 vxge_debug_init(VXGE_TRACE
,
2593 "new %s-%d line allocated",
2594 "IRQ", vdev
->pdev
->irq
);
2600 static void vxge_poll_vp_reset(unsigned long data
)
2602 struct vxgedev
*vdev
= (struct vxgedev
*)data
;
2605 for (i
= 0; i
< vdev
->no_of_vpath
; i
++) {
2606 if (test_bit(i
, &vdev
->vp_reset
)) {
2607 vxge_reset_vpath(vdev
, i
);
2611 if (j
&& (vdev
->config
.intr_type
!= MSI_X
)) {
2612 vxge_hw_device_unmask_all(vdev
->devh
);
2613 vxge_hw_device_flush_io(vdev
->devh
);
2616 mod_timer(&vdev
->vp_reset_timer
, jiffies
+ HZ
/ 2);
2619 static void vxge_poll_vp_lockup(unsigned long data
)
2621 struct vxgedev
*vdev
= (struct vxgedev
*)data
;
2622 enum vxge_hw_status status
= VXGE_HW_OK
;
2623 struct vxge_vpath
*vpath
;
2624 struct vxge_ring
*ring
;
2626 unsigned long rx_frms
;
2628 for (i
= 0; i
< vdev
->no_of_vpath
; i
++) {
2629 ring
= &vdev
->vpaths
[i
].ring
;
2631 /* Truncated to machine word size number of frames */
2632 rx_frms
= READ_ONCE(ring
->stats
.rx_frms
);
2634 /* Did this vpath received any packets */
2635 if (ring
->stats
.prev_rx_frms
== 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
)) {
2644 vpath
= &vdev
->vpaths
[i
];
2646 /* disable interrupts for this vpath */
2647 vxge_vpath_intr_disable(vdev
, i
);
2649 /* stop the queue for this vpath */
2650 netif_tx_stop_queue(vpath
->fifo
.txq
);
2655 ring
->stats
.prev_rx_frms
= rx_frms
;
2656 ring
->last_status
= status
;
2659 /* Check every 1 milli second */
2660 mod_timer(&vdev
->vp_lockup_timer
, jiffies
+ HZ
/ 1000);
2663 static netdev_features_t
vxge_fix_features(struct net_device
*dev
,
2664 netdev_features_t features
)
2666 netdev_features_t changed
= dev
->features
^ features
;
2668 /* Enabling RTH requires some of the logic in vxge_device_register and a
2669 * vpath reset. Due to these restrictions, only allow modification
2670 * while the interface is down.
2672 if ((changed
& NETIF_F_RXHASH
) && netif_running(dev
))
2673 features
^= NETIF_F_RXHASH
;
2678 static int vxge_set_features(struct net_device
*dev
, netdev_features_t features
)
2680 struct vxgedev
*vdev
= netdev_priv(dev
);
2681 netdev_features_t changed
= dev
->features
^ features
;
2683 if (!(changed
& NETIF_F_RXHASH
))
2686 /* !netif_running() ensured by vxge_fix_features() */
2688 vdev
->devh
->config
.rth_en
= !!(features
& NETIF_F_RXHASH
);
2689 if (vxge_reset_all_vpaths(vdev
) != VXGE_HW_OK
) {
2690 dev
->features
= features
^ NETIF_F_RXHASH
;
2691 vdev
->devh
->config
.rth_en
= !!(dev
->features
& NETIF_F_RXHASH
);
2700 * @dev: pointer to the device structure.
2702 * This function is the open entry point of the driver. It mainly calls a
2703 * function to allocate Rx buffers and inserts them into the buffer
2704 * descriptors and then enables the Rx part of the NIC.
2705 * Return value: '0' on success and an appropriate (-)ve integer as
2706 * defined in errno.h file on failure.
2708 static int vxge_open(struct net_device
*dev
)
2710 enum vxge_hw_status status
;
2711 struct vxgedev
*vdev
;
2712 struct __vxge_hw_device
*hldev
;
2713 struct vxge_vpath
*vpath
;
2716 u64 val64
, function_mode
;
2718 vxge_debug_entryexit(VXGE_TRACE
,
2719 "%s: %s:%d", dev
->name
, __func__
, __LINE__
);
2721 vdev
= netdev_priv(dev
);
2722 hldev
= pci_get_drvdata(vdev
->pdev
);
2723 function_mode
= vdev
->config
.device_hw_info
.function_mode
;
2725 /* make sure you have link off by default every time Nic is
2727 netif_carrier_off(dev
);
2730 status
= vxge_open_vpaths(vdev
);
2731 if (status
!= VXGE_HW_OK
) {
2732 vxge_debug_init(VXGE_ERR
,
2733 "%s: fatal: Vpath open failed", vdev
->ndev
->name
);
2738 vdev
->mtu
= dev
->mtu
;
2740 status
= vxge_add_isr(vdev
);
2741 if (status
!= VXGE_HW_OK
) {
2742 vxge_debug_init(VXGE_ERR
,
2743 "%s: fatal: ISR add failed", dev
->name
);
2748 if (vdev
->config
.intr_type
!= MSI_X
) {
2749 netif_napi_add(dev
, &vdev
->napi
, vxge_poll_inta
,
2750 vdev
->config
.napi_weight
);
2751 napi_enable(&vdev
->napi
);
2752 for (i
= 0; i
< vdev
->no_of_vpath
; i
++) {
2753 vpath
= &vdev
->vpaths
[i
];
2754 vpath
->ring
.napi_p
= &vdev
->napi
;
2757 for (i
= 0; i
< vdev
->no_of_vpath
; i
++) {
2758 vpath
= &vdev
->vpaths
[i
];
2759 netif_napi_add(dev
, &vpath
->ring
.napi
,
2760 vxge_poll_msix
, vdev
->config
.napi_weight
);
2761 napi_enable(&vpath
->ring
.napi
);
2762 vpath
->ring
.napi_p
= &vpath
->ring
.napi
;
2767 if (vdev
->config
.rth_steering
) {
2768 status
= vxge_rth_configure(vdev
);
2769 if (status
!= VXGE_HW_OK
) {
2770 vxge_debug_init(VXGE_ERR
,
2771 "%s: fatal: RTH configuration failed",
2777 printk(KERN_INFO
"%s: Receive Hashing Offload %s\n", dev
->name
,
2778 hldev
->config
.rth_en
? "enabled" : "disabled");
2780 for (i
= 0; i
< vdev
->no_of_vpath
; i
++) {
2781 vpath
= &vdev
->vpaths
[i
];
2783 /* set initial mtu before enabling the device */
2784 status
= vxge_hw_vpath_mtu_set(vpath
->handle
, vdev
->mtu
);
2785 if (status
!= VXGE_HW_OK
) {
2786 vxge_debug_init(VXGE_ERR
,
2787 "%s: fatal: can not set new MTU", dev
->name
);
2793 VXGE_DEVICE_DEBUG_LEVEL_SET(VXGE_TRACE
, VXGE_COMPONENT_LL
, vdev
);
2794 vxge_debug_init(vdev
->level_trace
,
2795 "%s: MTU is %d", vdev
->ndev
->name
, vdev
->mtu
);
2796 VXGE_DEVICE_DEBUG_LEVEL_SET(VXGE_ERR
, VXGE_COMPONENT_LL
, vdev
);
2798 /* Restore the DA, VID table and also multicast and promiscuous mode
2801 if (vdev
->all_multi_flg
) {
2802 for (i
= 0; i
< vdev
->no_of_vpath
; i
++) {
2803 vpath
= &vdev
->vpaths
[i
];
2804 vxge_restore_vpath_mac_addr(vpath
);
2805 vxge_restore_vpath_vid_table(vpath
);
2807 status
= vxge_hw_vpath_mcast_enable(vpath
->handle
);
2808 if (status
!= VXGE_HW_OK
)
2809 vxge_debug_init(VXGE_ERR
,
2810 "%s:%d Enabling multicast failed",
2811 __func__
, __LINE__
);
2815 /* Enable vpath to sniff all unicast/multicast traffic that not
2816 * addressed to them. We allow promiscuous mode for PF only
2820 for (i
= 0; i
< VXGE_HW_MAX_VIRTUAL_PATHS
; i
++)
2821 val64
|= VXGE_HW_RXMAC_AUTHORIZE_ALL_ADDR_VP(i
);
2823 vxge_hw_mgmt_reg_write(vdev
->devh
,
2824 vxge_hw_mgmt_reg_type_mrpcim
,
2826 (ulong
)offsetof(struct vxge_hw_mrpcim_reg
,
2827 rxmac_authorize_all_addr
),
2830 vxge_hw_mgmt_reg_write(vdev
->devh
,
2831 vxge_hw_mgmt_reg_type_mrpcim
,
2833 (ulong
)offsetof(struct vxge_hw_mrpcim_reg
,
2834 rxmac_authorize_all_vid
),
2837 vxge_set_multicast(dev
);
2839 /* Enabling Bcast and mcast for all vpath */
2840 for (i
= 0; i
< vdev
->no_of_vpath
; i
++) {
2841 vpath
= &vdev
->vpaths
[i
];
2842 status
= vxge_hw_vpath_bcast_enable(vpath
->handle
);
2843 if (status
!= VXGE_HW_OK
)
2844 vxge_debug_init(VXGE_ERR
,
2845 "%s : Can not enable bcast for vpath "
2846 "id %d", dev
->name
, i
);
2847 if (vdev
->config
.addr_learn_en
) {
2848 status
= vxge_hw_vpath_mcast_enable(vpath
->handle
);
2849 if (status
!= VXGE_HW_OK
)
2850 vxge_debug_init(VXGE_ERR
,
2851 "%s : Can not enable mcast for vpath "
2852 "id %d", dev
->name
, i
);
2856 vxge_hw_device_setpause_data(vdev
->devh
, 0,
2857 vdev
->config
.tx_pause_enable
,
2858 vdev
->config
.rx_pause_enable
);
2860 if (vdev
->vp_reset_timer
.function
== NULL
)
2861 vxge_os_timer(&vdev
->vp_reset_timer
, vxge_poll_vp_reset
, vdev
,
2864 /* There is no need to check for RxD leak and RxD lookup on Titan1A */
2865 if (vdev
->titan1
&& vdev
->vp_lockup_timer
.function
== NULL
)
2866 vxge_os_timer(&vdev
->vp_lockup_timer
, vxge_poll_vp_lockup
, vdev
,
2869 set_bit(__VXGE_STATE_CARD_UP
, &vdev
->state
);
2873 if (vxge_hw_device_link_state_get(vdev
->devh
) == VXGE_HW_LINK_UP
) {
2874 netif_carrier_on(vdev
->ndev
);
2875 netdev_notice(vdev
->ndev
, "Link Up\n");
2876 vdev
->stats
.link_up
++;
2879 vxge_hw_device_intr_enable(vdev
->devh
);
2883 for (i
= 0; i
< vdev
->no_of_vpath
; i
++) {
2884 vpath
= &vdev
->vpaths
[i
];
2886 vxge_hw_vpath_enable(vpath
->handle
);
2888 vxge_hw_vpath_rx_doorbell_init(vpath
->handle
);
2891 netif_tx_start_all_queues(vdev
->ndev
);
2894 vxge_config_ci_for_tti_rti(vdev
);
2902 if (vdev
->config
.intr_type
!= MSI_X
)
2903 napi_disable(&vdev
->napi
);
2905 for (i
= 0; i
< vdev
->no_of_vpath
; i
++)
2906 napi_disable(&vdev
->vpaths
[i
].ring
.napi
);
2910 vxge_close_vpaths(vdev
, 0);
2912 vxge_debug_entryexit(VXGE_TRACE
,
2913 "%s: %s:%d Exiting...",
2914 dev
->name
, __func__
, __LINE__
);
2918 /* Loop through the mac address list and delete all the entries */
2919 static void vxge_free_mac_add_list(struct vxge_vpath
*vpath
)
2922 struct list_head
*entry
, *next
;
2923 if (list_empty(&vpath
->mac_addr_list
))
2926 list_for_each_safe(entry
, next
, &vpath
->mac_addr_list
) {
2928 kfree((struct vxge_mac_addrs
*)entry
);
2932 static void vxge_napi_del_all(struct vxgedev
*vdev
)
2935 if (vdev
->config
.intr_type
!= MSI_X
)
2936 netif_napi_del(&vdev
->napi
);
2938 for (i
= 0; i
< vdev
->no_of_vpath
; i
++)
2939 netif_napi_del(&vdev
->vpaths
[i
].ring
.napi
);
2943 static int do_vxge_close(struct net_device
*dev
, int do_io
)
2945 enum vxge_hw_status status
;
2946 struct vxgedev
*vdev
;
2947 struct __vxge_hw_device
*hldev
;
2949 u64 val64
, vpath_vector
;
2950 vxge_debug_entryexit(VXGE_TRACE
, "%s: %s:%d",
2951 dev
->name
, __func__
, __LINE__
);
2953 vdev
= netdev_priv(dev
);
2954 hldev
= pci_get_drvdata(vdev
->pdev
);
2956 if (unlikely(!is_vxge_card_up(vdev
)))
2959 /* If vxge_handle_crit_err task is executing,
2960 * wait till it completes. */
2961 while (test_and_set_bit(__VXGE_STATE_RESET_CARD
, &vdev
->state
))
2965 /* Put the vpath back in normal mode */
2966 vpath_vector
= vxge_mBIT(vdev
->vpaths
[0].device_id
);
2967 status
= vxge_hw_mgmt_reg_read(vdev
->devh
,
2968 vxge_hw_mgmt_reg_type_mrpcim
,
2971 struct vxge_hw_mrpcim_reg
,
2972 rts_mgr_cbasin_cfg
),
2974 if (status
== VXGE_HW_OK
) {
2975 val64
&= ~vpath_vector
;
2976 status
= vxge_hw_mgmt_reg_write(vdev
->devh
,
2977 vxge_hw_mgmt_reg_type_mrpcim
,
2980 struct vxge_hw_mrpcim_reg
,
2981 rts_mgr_cbasin_cfg
),
2985 /* Remove the function 0 from promiscuous mode */
2986 vxge_hw_mgmt_reg_write(vdev
->devh
,
2987 vxge_hw_mgmt_reg_type_mrpcim
,
2989 (ulong
)offsetof(struct vxge_hw_mrpcim_reg
,
2990 rxmac_authorize_all_addr
),
2993 vxge_hw_mgmt_reg_write(vdev
->devh
,
2994 vxge_hw_mgmt_reg_type_mrpcim
,
2996 (ulong
)offsetof(struct vxge_hw_mrpcim_reg
,
2997 rxmac_authorize_all_vid
),
3004 del_timer_sync(&vdev
->vp_lockup_timer
);
3006 del_timer_sync(&vdev
->vp_reset_timer
);
3009 vxge_hw_device_wait_receive_idle(hldev
);
3011 clear_bit(__VXGE_STATE_CARD_UP
, &vdev
->state
);
3014 if (vdev
->config
.intr_type
!= MSI_X
)
3015 napi_disable(&vdev
->napi
);
3017 for (i
= 0; i
< vdev
->no_of_vpath
; i
++)
3018 napi_disable(&vdev
->vpaths
[i
].ring
.napi
);
3021 netif_carrier_off(vdev
->ndev
);
3022 netdev_notice(vdev
->ndev
, "Link Down\n");
3023 netif_tx_stop_all_queues(vdev
->ndev
);
3025 /* Note that at this point xmit() is stopped by upper layer */
3027 vxge_hw_device_intr_disable(vdev
->devh
);
3031 vxge_napi_del_all(vdev
);
3034 vxge_reset_all_vpaths(vdev
);
3036 vxge_close_vpaths(vdev
, 0);
3038 vxge_debug_entryexit(VXGE_TRACE
,
3039 "%s: %s:%d Exiting...", dev
->name
, __func__
, __LINE__
);
3041 clear_bit(__VXGE_STATE_RESET_CARD
, &vdev
->state
);
3048 * @dev: device pointer.
3050 * This is the stop entry point of the driver. It needs to undo exactly
3051 * whatever was done by the open entry point, thus it's usually referred to
3052 * as the close function.Among other things this function mainly stops the
3053 * Rx side of the NIC and frees all the Rx buffers in the Rx rings.
3054 * Return value: '0' on success and an appropriate (-)ve integer as
3055 * defined in errno.h file on failure.
3057 static int vxge_close(struct net_device
*dev
)
3059 do_vxge_close(dev
, 1);
3065 * @dev: net device pointer.
3066 * @new_mtu :the new MTU size for the device.
3068 * A driver entry point to change MTU size for the device. Before changing
3069 * the MTU the device must be stopped.
3071 static int vxge_change_mtu(struct net_device
*dev
, int new_mtu
)
3073 struct vxgedev
*vdev
= netdev_priv(dev
);
3075 vxge_debug_entryexit(vdev
->level_trace
,
3076 "%s:%d", __func__
, __LINE__
);
3078 /* check if device is down already */
3079 if (unlikely(!is_vxge_card_up(vdev
))) {
3080 /* just store new value, will use later on open() */
3082 vxge_debug_init(vdev
->level_err
,
3083 "%s", "device is down on MTU change");
3087 vxge_debug_init(vdev
->level_trace
,
3088 "trying to apply new MTU %d", new_mtu
);
3090 if (vxge_close(dev
))
3094 vdev
->mtu
= new_mtu
;
3099 vxge_debug_init(vdev
->level_trace
,
3100 "%s: MTU changed to %d", vdev
->ndev
->name
, new_mtu
);
3102 vxge_debug_entryexit(vdev
->level_trace
,
3103 "%s:%d Exiting...", __func__
, __LINE__
);
3110 * @dev: pointer to the device structure
3111 * @stats: pointer to struct rtnl_link_stats64
3115 vxge_get_stats64(struct net_device
*dev
, struct rtnl_link_stats64
*net_stats
)
3117 struct vxgedev
*vdev
= netdev_priv(dev
);
3120 /* net_stats already zeroed by caller */
3121 for (k
= 0; k
< vdev
->no_of_vpath
; k
++) {
3122 struct vxge_ring_stats
*rxstats
= &vdev
->vpaths
[k
].ring
.stats
;
3123 struct vxge_fifo_stats
*txstats
= &vdev
->vpaths
[k
].fifo
.stats
;
3125 u64 packets
, bytes
, multicast
;
3128 start
= u64_stats_fetch_begin_irq(&rxstats
->syncp
);
3130 packets
= rxstats
->rx_frms
;
3131 multicast
= rxstats
->rx_mcast
;
3132 bytes
= rxstats
->rx_bytes
;
3133 } while (u64_stats_fetch_retry_irq(&rxstats
->syncp
, start
));
3135 net_stats
->rx_packets
+= packets
;
3136 net_stats
->rx_bytes
+= bytes
;
3137 net_stats
->multicast
+= multicast
;
3139 net_stats
->rx_errors
+= rxstats
->rx_errors
;
3140 net_stats
->rx_dropped
+= rxstats
->rx_dropped
;
3143 start
= u64_stats_fetch_begin_irq(&txstats
->syncp
);
3145 packets
= txstats
->tx_frms
;
3146 bytes
= txstats
->tx_bytes
;
3147 } while (u64_stats_fetch_retry_irq(&txstats
->syncp
, start
));
3149 net_stats
->tx_packets
+= packets
;
3150 net_stats
->tx_bytes
+= bytes
;
3151 net_stats
->tx_errors
+= txstats
->tx_errors
;
3155 static enum vxge_hw_status
vxge_timestamp_config(struct __vxge_hw_device
*devh
)
3157 enum vxge_hw_status status
;
3160 /* Timestamp is passed to the driver via the FCS, therefore we
3161 * must disable the FCS stripping by the adapter. Since this is
3162 * required for the driver to load (due to a hardware bug),
3163 * there is no need to do anything special here.
3165 val64
= VXGE_HW_XMAC_TIMESTAMP_EN
|
3166 VXGE_HW_XMAC_TIMESTAMP_USE_LINK_ID(0) |
3167 VXGE_HW_XMAC_TIMESTAMP_INTERVAL(0);
3169 status
= vxge_hw_mgmt_reg_write(devh
,
3170 vxge_hw_mgmt_reg_type_mrpcim
,
3172 offsetof(struct vxge_hw_mrpcim_reg
,
3175 vxge_hw_device_flush_io(devh
);
3176 devh
->config
.hwts_en
= VXGE_HW_HWTS_ENABLE
;
3180 static int vxge_hwtstamp_set(struct vxgedev
*vdev
, void __user
*data
)
3182 struct hwtstamp_config config
;
3185 if (copy_from_user(&config
, data
, sizeof(config
)))
3188 /* reserved for future extensions */
3192 /* Transmit HW Timestamp not supported */
3193 switch (config
.tx_type
) {
3194 case HWTSTAMP_TX_OFF
:
3196 case HWTSTAMP_TX_ON
:
3201 switch (config
.rx_filter
) {
3202 case HWTSTAMP_FILTER_NONE
:
3204 config
.rx_filter
= HWTSTAMP_FILTER_NONE
;
3207 case HWTSTAMP_FILTER_ALL
:
3208 case HWTSTAMP_FILTER_SOME
:
3209 case HWTSTAMP_FILTER_PTP_V1_L4_EVENT
:
3210 case HWTSTAMP_FILTER_PTP_V1_L4_SYNC
:
3211 case HWTSTAMP_FILTER_PTP_V1_L4_DELAY_REQ
:
3212 case HWTSTAMP_FILTER_PTP_V2_L4_EVENT
:
3213 case HWTSTAMP_FILTER_PTP_V2_L4_SYNC
:
3214 case HWTSTAMP_FILTER_PTP_V2_L4_DELAY_REQ
:
3215 case HWTSTAMP_FILTER_PTP_V2_L2_EVENT
:
3216 case HWTSTAMP_FILTER_PTP_V2_L2_SYNC
:
3217 case HWTSTAMP_FILTER_PTP_V2_L2_DELAY_REQ
:
3218 case HWTSTAMP_FILTER_PTP_V2_EVENT
:
3219 case HWTSTAMP_FILTER_PTP_V2_SYNC
:
3220 case HWTSTAMP_FILTER_PTP_V2_DELAY_REQ
:
3221 case HWTSTAMP_FILTER_NTP_ALL
:
3222 if (vdev
->devh
->config
.hwts_en
!= VXGE_HW_HWTS_ENABLE
)
3226 config
.rx_filter
= HWTSTAMP_FILTER_ALL
;
3233 for (i
= 0; i
< vdev
->no_of_vpath
; i
++)
3234 vdev
->vpaths
[i
].ring
.rx_hwts
= vdev
->rx_hwts
;
3236 if (copy_to_user(data
, &config
, sizeof(config
)))
3242 static int vxge_hwtstamp_get(struct vxgedev
*vdev
, void __user
*data
)
3244 struct hwtstamp_config config
;
3247 config
.tx_type
= HWTSTAMP_TX_OFF
;
3248 config
.rx_filter
= (vdev
->rx_hwts
?
3249 HWTSTAMP_FILTER_ALL
: HWTSTAMP_FILTER_NONE
);
3251 if (copy_to_user(data
, &config
, sizeof(config
)))
3259 * @dev: Device pointer.
3260 * @ifr: An IOCTL specific structure, that can contain a pointer to
3261 * a proprietary structure used to pass information to the driver.
3262 * @cmd: This is used to distinguish between the different commands that
3263 * can be passed to the IOCTL functions.
3265 * Entry point for the Ioctl.
3267 static int vxge_ioctl(struct net_device
*dev
, struct ifreq
*rq
, int cmd
)
3269 struct vxgedev
*vdev
= netdev_priv(dev
);
3273 return vxge_hwtstamp_set(vdev
, rq
->ifr_data
);
3275 return vxge_hwtstamp_get(vdev
, rq
->ifr_data
);
3283 * @dev: pointer to net device structure
3285 * Watchdog for transmit side.
3286 * This function is triggered if the Tx Queue is stopped
3287 * for a pre-defined amount of time when the Interface is still up.
3289 static void vxge_tx_watchdog(struct net_device
*dev
)
3291 struct vxgedev
*vdev
;
3293 vxge_debug_entryexit(VXGE_TRACE
, "%s:%d", __func__
, __LINE__
);
3295 vdev
= netdev_priv(dev
);
3297 vdev
->cric_err_event
= VXGE_HW_EVENT_RESET_START
;
3299 schedule_work(&vdev
->reset_task
);
3300 vxge_debug_entryexit(VXGE_TRACE
,
3301 "%s:%d Exiting...", __func__
, __LINE__
);
3305 * vxge_vlan_rx_add_vid
3306 * @dev: net device pointer.
3307 * @proto: vlan protocol
3310 * Add the vlan id to the devices vlan id table
3313 vxge_vlan_rx_add_vid(struct net_device
*dev
, __be16 proto
, u16 vid
)
3315 struct vxgedev
*vdev
= netdev_priv(dev
);
3316 struct vxge_vpath
*vpath
;
3319 /* Add these vlan to the vid table */
3320 for (vp_id
= 0; vp_id
< vdev
->no_of_vpath
; vp_id
++) {
3321 vpath
= &vdev
->vpaths
[vp_id
];
3322 if (!vpath
->is_open
)
3324 vxge_hw_vpath_vid_add(vpath
->handle
, vid
);
3326 set_bit(vid
, vdev
->active_vlans
);
3331 * vxge_vlan_rx_kill_vid
3332 * @dev: net device pointer.
3333 * @proto: vlan protocol
3336 * Remove the vlan id from the device's vlan id table
3339 vxge_vlan_rx_kill_vid(struct net_device
*dev
, __be16 proto
, u16 vid
)
3341 struct vxgedev
*vdev
= netdev_priv(dev
);
3342 struct vxge_vpath
*vpath
;
3345 vxge_debug_entryexit(VXGE_TRACE
, "%s:%d", __func__
, __LINE__
);
3347 /* Delete this vlan from the vid table */
3348 for (vp_id
= 0; vp_id
< vdev
->no_of_vpath
; vp_id
++) {
3349 vpath
= &vdev
->vpaths
[vp_id
];
3350 if (!vpath
->is_open
)
3352 vxge_hw_vpath_vid_delete(vpath
->handle
, vid
);
3354 vxge_debug_entryexit(VXGE_TRACE
,
3355 "%s:%d Exiting...", __func__
, __LINE__
);
3356 clear_bit(vid
, vdev
->active_vlans
);
3360 static const struct net_device_ops vxge_netdev_ops
= {
3361 .ndo_open
= vxge_open
,
3362 .ndo_stop
= vxge_close
,
3363 .ndo_get_stats64
= vxge_get_stats64
,
3364 .ndo_start_xmit
= vxge_xmit
,
3365 .ndo_validate_addr
= eth_validate_addr
,
3366 .ndo_set_rx_mode
= vxge_set_multicast
,
3367 .ndo_do_ioctl
= vxge_ioctl
,
3368 .ndo_set_mac_address
= vxge_set_mac_addr
,
3369 .ndo_change_mtu
= vxge_change_mtu
,
3370 .ndo_fix_features
= vxge_fix_features
,
3371 .ndo_set_features
= vxge_set_features
,
3372 .ndo_vlan_rx_kill_vid
= vxge_vlan_rx_kill_vid
,
3373 .ndo_vlan_rx_add_vid
= vxge_vlan_rx_add_vid
,
3374 .ndo_tx_timeout
= vxge_tx_watchdog
,
3375 #ifdef CONFIG_NET_POLL_CONTROLLER
3376 .ndo_poll_controller
= vxge_netpoll
,
3380 static int vxge_device_register(struct __vxge_hw_device
*hldev
,
3381 struct vxge_config
*config
, int high_dma
,
3382 int no_of_vpath
, struct vxgedev
**vdev_out
)
3384 struct net_device
*ndev
;
3385 enum vxge_hw_status status
= VXGE_HW_OK
;
3386 struct vxgedev
*vdev
;
3387 int ret
= 0, no_of_queue
= 1;
3391 if (config
->tx_steering_type
)
3392 no_of_queue
= no_of_vpath
;
3394 ndev
= alloc_etherdev_mq(sizeof(struct vxgedev
),
3398 vxge_hw_device_trace_level_get(hldev
),
3399 "%s : device allocation failed", __func__
);
3404 vxge_debug_entryexit(
3405 vxge_hw_device_trace_level_get(hldev
),
3406 "%s: %s:%d Entering...",
3407 ndev
->name
, __func__
, __LINE__
);
3409 vdev
= netdev_priv(ndev
);
3410 memset(vdev
, 0, sizeof(struct vxgedev
));
3414 vdev
->pdev
= hldev
->pdev
;
3415 memcpy(&vdev
->config
, config
, sizeof(struct vxge_config
));
3417 vdev
->titan1
= (vdev
->pdev
->revision
== VXGE_HW_TITAN1_PCI_REVISION
);
3419 SET_NETDEV_DEV(ndev
, &vdev
->pdev
->dev
);
3421 ndev
->hw_features
= NETIF_F_RXCSUM
| NETIF_F_SG
|
3422 NETIF_F_IP_CSUM
| NETIF_F_IPV6_CSUM
|
3423 NETIF_F_TSO
| NETIF_F_TSO6
|
3424 NETIF_F_HW_VLAN_CTAG_TX
;
3425 if (vdev
->config
.rth_steering
!= NO_STEERING
)
3426 ndev
->hw_features
|= NETIF_F_RXHASH
;
3428 ndev
->features
|= ndev
->hw_features
|
3429 NETIF_F_HW_VLAN_CTAG_RX
| NETIF_F_HW_VLAN_CTAG_FILTER
;
3432 ndev
->netdev_ops
= &vxge_netdev_ops
;
3434 ndev
->watchdog_timeo
= VXGE_LL_WATCH_DOG_TIMEOUT
;
3435 INIT_WORK(&vdev
->reset_task
, vxge_reset
);
3437 vxge_initialize_ethtool_ops(ndev
);
3439 /* Allocate memory for vpath */
3440 vdev
->vpaths
= kzalloc((sizeof(struct vxge_vpath
)) *
3441 no_of_vpath
, GFP_KERNEL
);
3442 if (!vdev
->vpaths
) {
3443 vxge_debug_init(VXGE_ERR
,
3444 "%s: vpath memory allocation failed",
3450 vxge_debug_init(vxge_hw_device_trace_level_get(hldev
),
3451 "%s : checksumming enabled", __func__
);
3454 ndev
->features
|= NETIF_F_HIGHDMA
;
3455 vxge_debug_init(vxge_hw_device_trace_level_get(hldev
),
3456 "%s : using High DMA", __func__
);
3459 /* MTU range: 68 - 9600 */
3460 ndev
->min_mtu
= VXGE_HW_MIN_MTU
;
3461 ndev
->max_mtu
= VXGE_HW_MAX_MTU
;
3463 ret
= register_netdev(ndev
);
3465 vxge_debug_init(vxge_hw_device_trace_level_get(hldev
),
3466 "%s: %s : device registration failed!",
3467 ndev
->name
, __func__
);
3471 /* Set the factory defined MAC address initially */
3472 ndev
->addr_len
= ETH_ALEN
;
3474 /* Make Link state as off at this point, when the Link change
3475 * interrupt comes the state will be automatically changed to
3478 netif_carrier_off(ndev
);
3480 vxge_debug_init(vxge_hw_device_trace_level_get(hldev
),
3481 "%s: Ethernet device registered",
3487 /* Resetting the Device stats */
3488 status
= vxge_hw_mrpcim_stats_access(
3490 VXGE_HW_STATS_OP_CLEAR_ALL_STATS
,
3495 if (status
== VXGE_HW_ERR_PRIVILAGED_OPEARATION
)
3497 vxge_hw_device_trace_level_get(hldev
),
3498 "%s: device stats clear returns"
3499 "VXGE_HW_ERR_PRIVILAGED_OPEARATION", ndev
->name
);
3501 vxge_debug_entryexit(vxge_hw_device_trace_level_get(hldev
),
3502 "%s: %s:%d Exiting...",
3503 ndev
->name
, __func__
, __LINE__
);
3507 kfree(vdev
->vpaths
);
3515 * vxge_device_unregister
3517 * This function will unregister and free network device
3519 static void vxge_device_unregister(struct __vxge_hw_device
*hldev
)
3521 struct vxgedev
*vdev
;
3522 struct net_device
*dev
;
3526 vdev
= netdev_priv(dev
);
3528 vxge_debug_entryexit(vdev
->level_trace
, "%s: %s:%d", vdev
->ndev
->name
,
3529 __func__
, __LINE__
);
3531 strlcpy(buf
, dev
->name
, IFNAMSIZ
);
3533 flush_work(&vdev
->reset_task
);
3535 /* in 2.6 will call stop() if device is up */
3536 unregister_netdev(dev
);
3538 kfree(vdev
->vpaths
);
3540 /* we are safe to free it now */
3543 vxge_debug_init(vdev
->level_trace
, "%s: ethernet device unregistered",
3545 vxge_debug_entryexit(vdev
->level_trace
, "%s: %s:%d Exiting...", buf
,
3546 __func__
, __LINE__
);
3550 * vxge_callback_crit_err
3552 * This function is called by the alarm handler in interrupt context.
3553 * Driver must analyze it based on the event type.
3556 vxge_callback_crit_err(struct __vxge_hw_device
*hldev
,
3557 enum vxge_hw_event type
, u64 vp_id
)
3559 struct net_device
*dev
= hldev
->ndev
;
3560 struct vxgedev
*vdev
= netdev_priv(dev
);
3561 struct vxge_vpath
*vpath
= NULL
;
3564 vxge_debug_entryexit(vdev
->level_trace
,
3565 "%s: %s:%d", vdev
->ndev
->name
, __func__
, __LINE__
);
3567 /* Note: This event type should be used for device wide
3568 * indications only - Serious errors, Slot freeze and critical errors
3570 vdev
->cric_err_event
= type
;
3572 for (vpath_idx
= 0; vpath_idx
< vdev
->no_of_vpath
; vpath_idx
++) {
3573 vpath
= &vdev
->vpaths
[vpath_idx
];
3574 if (vpath
->device_id
== vp_id
)
3578 if (!test_bit(__VXGE_STATE_RESET_CARD
, &vdev
->state
)) {
3579 if (type
== VXGE_HW_EVENT_SLOT_FREEZE
) {
3580 vxge_debug_init(VXGE_ERR
,
3581 "%s: Slot is frozen", vdev
->ndev
->name
);
3582 } else if (type
== VXGE_HW_EVENT_SERR
) {
3583 vxge_debug_init(VXGE_ERR
,
3584 "%s: Encountered Serious Error",
3586 } else if (type
== VXGE_HW_EVENT_CRITICAL_ERR
)
3587 vxge_debug_init(VXGE_ERR
,
3588 "%s: Encountered Critical Error",
3592 if ((type
== VXGE_HW_EVENT_SERR
) ||
3593 (type
== VXGE_HW_EVENT_SLOT_FREEZE
)) {
3594 if (unlikely(vdev
->exec_mode
))
3595 clear_bit(__VXGE_STATE_CARD_UP
, &vdev
->state
);
3596 } else if (type
== VXGE_HW_EVENT_CRITICAL_ERR
) {
3597 vxge_hw_device_mask_all(hldev
);
3598 if (unlikely(vdev
->exec_mode
))
3599 clear_bit(__VXGE_STATE_CARD_UP
, &vdev
->state
);
3600 } else if ((type
== VXGE_HW_EVENT_FIFO_ERR
) ||
3601 (type
== VXGE_HW_EVENT_VPATH_ERR
)) {
3603 if (unlikely(vdev
->exec_mode
))
3604 clear_bit(__VXGE_STATE_CARD_UP
, &vdev
->state
);
3606 /* check if this vpath is already set for reset */
3607 if (!test_and_set_bit(vpath_idx
, &vdev
->vp_reset
)) {
3609 /* disable interrupts for this vpath */
3610 vxge_vpath_intr_disable(vdev
, vpath_idx
);
3612 /* stop the queue for this vpath */
3613 netif_tx_stop_queue(vpath
->fifo
.txq
);
3618 vxge_debug_entryexit(vdev
->level_trace
,
3619 "%s: %s:%d Exiting...",
3620 vdev
->ndev
->name
, __func__
, __LINE__
);
3623 static void verify_bandwidth(void)
3625 int i
, band_width
, total
= 0, equal_priority
= 0;
3627 /* 1. If user enters 0 for some fifo, give equal priority to all */
3628 for (i
= 0; i
< VXGE_HW_MAX_VIRTUAL_PATHS
; i
++) {
3629 if (bw_percentage
[i
] == 0) {
3635 if (!equal_priority
) {
3636 /* 2. If sum exceeds 100, give equal priority to all */
3637 for (i
= 0; i
< VXGE_HW_MAX_VIRTUAL_PATHS
; i
++) {
3638 if (bw_percentage
[i
] == 0xFF)
3641 total
+= bw_percentage
[i
];
3642 if (total
> VXGE_HW_VPATH_BANDWIDTH_MAX
) {
3649 if (!equal_priority
) {
3650 /* Is all the bandwidth consumed? */
3651 if (total
< VXGE_HW_VPATH_BANDWIDTH_MAX
) {
3652 if (i
< VXGE_HW_MAX_VIRTUAL_PATHS
) {
3653 /* Split rest of bw equally among next VPs*/
3655 (VXGE_HW_VPATH_BANDWIDTH_MAX
- total
) /
3656 (VXGE_HW_MAX_VIRTUAL_PATHS
- i
);
3657 if (band_width
< 2) /* min of 2% */
3660 for (; i
< VXGE_HW_MAX_VIRTUAL_PATHS
;
3666 } else if (i
< VXGE_HW_MAX_VIRTUAL_PATHS
)
3670 if (equal_priority
) {
3671 vxge_debug_init(VXGE_ERR
,
3672 "%s: Assigning equal bandwidth to all the vpaths",
3674 bw_percentage
[0] = VXGE_HW_VPATH_BANDWIDTH_MAX
/
3675 VXGE_HW_MAX_VIRTUAL_PATHS
;
3676 for (i
= 1; i
< VXGE_HW_MAX_VIRTUAL_PATHS
; i
++)
3677 bw_percentage
[i
] = bw_percentage
[0];
3682 * Vpath configuration
3684 static int vxge_config_vpaths(struct vxge_hw_device_config
*device_config
,
3685 u64 vpath_mask
, struct vxge_config
*config_param
)
3687 int i
, no_of_vpaths
= 0, default_no_vpath
= 0, temp
;
3688 u32 txdl_size
, txdl_per_memblock
;
3690 temp
= driver_config
->vpath_per_dev
;
3691 if ((driver_config
->vpath_per_dev
== VXGE_USE_DEFAULT
) &&
3692 (max_config_dev
== VXGE_MAX_CONFIG_DEV
)) {
3693 /* No more CPU. Return vpath number as zero.*/
3694 if (driver_config
->g_no_cpus
== -1)
3697 if (!driver_config
->g_no_cpus
)
3698 driver_config
->g_no_cpus
=
3699 netif_get_num_default_rss_queues();
3701 driver_config
->vpath_per_dev
= driver_config
->g_no_cpus
>> 1;
3702 if (!driver_config
->vpath_per_dev
)
3703 driver_config
->vpath_per_dev
= 1;
3705 for (i
= 0; i
< VXGE_HW_MAX_VIRTUAL_PATHS
; i
++)
3706 if (!vxge_bVALn(vpath_mask
, i
, 1))
3710 if (default_no_vpath
< driver_config
->vpath_per_dev
)
3711 driver_config
->vpath_per_dev
= default_no_vpath
;
3713 driver_config
->g_no_cpus
= driver_config
->g_no_cpus
-
3714 (driver_config
->vpath_per_dev
* 2);
3715 if (driver_config
->g_no_cpus
<= 0)
3716 driver_config
->g_no_cpus
= -1;
3719 if (driver_config
->vpath_per_dev
== 1) {
3720 vxge_debug_ll_config(VXGE_TRACE
,
3721 "%s: Disable tx and rx steering, "
3722 "as single vpath is configured", VXGE_DRIVER_NAME
);
3723 config_param
->rth_steering
= NO_STEERING
;
3724 config_param
->tx_steering_type
= NO_STEERING
;
3725 device_config
->rth_en
= 0;
3728 /* configure bandwidth */
3729 for (i
= 0; i
< VXGE_HW_MAX_VIRTUAL_PATHS
; i
++)
3730 device_config
->vp_config
[i
].min_bandwidth
= bw_percentage
[i
];
3732 for (i
= 0; i
< VXGE_HW_MAX_VIRTUAL_PATHS
; i
++) {
3733 device_config
->vp_config
[i
].vp_id
= i
;
3734 device_config
->vp_config
[i
].mtu
= VXGE_HW_DEFAULT_MTU
;
3735 if (no_of_vpaths
< driver_config
->vpath_per_dev
) {
3736 if (!vxge_bVALn(vpath_mask
, i
, 1)) {
3737 vxge_debug_ll_config(VXGE_TRACE
,
3738 "%s: vpath: %d is not available",
3739 VXGE_DRIVER_NAME
, i
);
3742 vxge_debug_ll_config(VXGE_TRACE
,
3743 "%s: vpath: %d available",
3744 VXGE_DRIVER_NAME
, i
);
3748 vxge_debug_ll_config(VXGE_TRACE
,
3749 "%s: vpath: %d is not configured, "
3750 "max_config_vpath exceeded",
3751 VXGE_DRIVER_NAME
, i
);
3755 /* Configure Tx fifo's */
3756 device_config
->vp_config
[i
].fifo
.enable
=
3757 VXGE_HW_FIFO_ENABLE
;
3758 device_config
->vp_config
[i
].fifo
.max_frags
=
3760 device_config
->vp_config
[i
].fifo
.memblock_size
=
3761 VXGE_HW_MIN_FIFO_MEMBLOCK_SIZE
;
3763 txdl_size
= device_config
->vp_config
[i
].fifo
.max_frags
*
3764 sizeof(struct vxge_hw_fifo_txd
);
3765 txdl_per_memblock
= VXGE_HW_MIN_FIFO_MEMBLOCK_SIZE
/ txdl_size
;
3767 device_config
->vp_config
[i
].fifo
.fifo_blocks
=
3768 ((VXGE_DEF_FIFO_LENGTH
- 1) / txdl_per_memblock
) + 1;
3770 device_config
->vp_config
[i
].fifo
.intr
=
3771 VXGE_HW_FIFO_QUEUE_INTR_DISABLE
;
3773 /* Configure tti properties */
3774 device_config
->vp_config
[i
].tti
.intr_enable
=
3775 VXGE_HW_TIM_INTR_ENABLE
;
3777 device_config
->vp_config
[i
].tti
.btimer_val
=
3778 (VXGE_TTI_BTIMER_VAL
* 1000) / 272;
3780 device_config
->vp_config
[i
].tti
.timer_ac_en
=
3781 VXGE_HW_TIM_TIMER_AC_ENABLE
;
3783 /* For msi-x with napi (each vector has a handler of its own) -
3784 * Set CI to OFF for all vpaths
3786 device_config
->vp_config
[i
].tti
.timer_ci_en
=
3787 VXGE_HW_TIM_TIMER_CI_DISABLE
;
3789 device_config
->vp_config
[i
].tti
.timer_ri_en
=
3790 VXGE_HW_TIM_TIMER_RI_DISABLE
;
3792 device_config
->vp_config
[i
].tti
.util_sel
=
3793 VXGE_HW_TIM_UTIL_SEL_LEGACY_TX_NET_UTIL
;
3795 device_config
->vp_config
[i
].tti
.ltimer_val
=
3796 (VXGE_TTI_LTIMER_VAL
* 1000) / 272;
3798 device_config
->vp_config
[i
].tti
.rtimer_val
=
3799 (VXGE_TTI_RTIMER_VAL
* 1000) / 272;
3801 device_config
->vp_config
[i
].tti
.urange_a
= TTI_TX_URANGE_A
;
3802 device_config
->vp_config
[i
].tti
.urange_b
= TTI_TX_URANGE_B
;
3803 device_config
->vp_config
[i
].tti
.urange_c
= TTI_TX_URANGE_C
;
3804 device_config
->vp_config
[i
].tti
.uec_a
= TTI_TX_UFC_A
;
3805 device_config
->vp_config
[i
].tti
.uec_b
= TTI_TX_UFC_B
;
3806 device_config
->vp_config
[i
].tti
.uec_c
= TTI_TX_UFC_C
;
3807 device_config
->vp_config
[i
].tti
.uec_d
= TTI_TX_UFC_D
;
3809 /* Configure Rx rings */
3810 device_config
->vp_config
[i
].ring
.enable
=
3811 VXGE_HW_RING_ENABLE
;
3813 device_config
->vp_config
[i
].ring
.ring_blocks
=
3814 VXGE_HW_DEF_RING_BLOCKS
;
3816 device_config
->vp_config
[i
].ring
.buffer_mode
=
3817 VXGE_HW_RING_RXD_BUFFER_MODE_1
;
3819 device_config
->vp_config
[i
].ring
.rxds_limit
=
3820 VXGE_HW_DEF_RING_RXDS_LIMIT
;
3822 device_config
->vp_config
[i
].ring
.scatter_mode
=
3823 VXGE_HW_RING_SCATTER_MODE_A
;
3825 /* Configure rti properties */
3826 device_config
->vp_config
[i
].rti
.intr_enable
=
3827 VXGE_HW_TIM_INTR_ENABLE
;
3829 device_config
->vp_config
[i
].rti
.btimer_val
=
3830 (VXGE_RTI_BTIMER_VAL
* 1000)/272;
3832 device_config
->vp_config
[i
].rti
.timer_ac_en
=
3833 VXGE_HW_TIM_TIMER_AC_ENABLE
;
3835 device_config
->vp_config
[i
].rti
.timer_ci_en
=
3836 VXGE_HW_TIM_TIMER_CI_DISABLE
;
3838 device_config
->vp_config
[i
].rti
.timer_ri_en
=
3839 VXGE_HW_TIM_TIMER_RI_DISABLE
;
3841 device_config
->vp_config
[i
].rti
.util_sel
=
3842 VXGE_HW_TIM_UTIL_SEL_LEGACY_RX_NET_UTIL
;
3844 device_config
->vp_config
[i
].rti
.urange_a
=
3846 device_config
->vp_config
[i
].rti
.urange_b
=
3848 device_config
->vp_config
[i
].rti
.urange_c
=
3850 device_config
->vp_config
[i
].rti
.uec_a
= RTI_RX_UFC_A
;
3851 device_config
->vp_config
[i
].rti
.uec_b
= RTI_RX_UFC_B
;
3852 device_config
->vp_config
[i
].rti
.uec_c
= RTI_RX_UFC_C
;
3853 device_config
->vp_config
[i
].rti
.uec_d
= RTI_RX_UFC_D
;
3855 device_config
->vp_config
[i
].rti
.rtimer_val
=
3856 (VXGE_RTI_RTIMER_VAL
* 1000) / 272;
3858 device_config
->vp_config
[i
].rti
.ltimer_val
=
3859 (VXGE_RTI_LTIMER_VAL
* 1000) / 272;
3861 device_config
->vp_config
[i
].rpa_strip_vlan_tag
=
3865 driver_config
->vpath_per_dev
= temp
;
3866 return no_of_vpaths
;
3869 /* initialize device configuratrions */
3870 static void vxge_device_config_init(struct vxge_hw_device_config
*device_config
,
3873 /* Used for CQRQ/SRQ. */
3874 device_config
->dma_blockpool_initial
=
3875 VXGE_HW_INITIAL_DMA_BLOCK_POOL_SIZE
;
3877 device_config
->dma_blockpool_max
=
3878 VXGE_HW_MAX_DMA_BLOCK_POOL_SIZE
;
3880 if (max_mac_vpath
> VXGE_MAX_MAC_ADDR_COUNT
)
3881 max_mac_vpath
= VXGE_MAX_MAC_ADDR_COUNT
;
3883 if (!IS_ENABLED(CONFIG_PCI_MSI
)) {
3884 vxge_debug_init(VXGE_ERR
,
3885 "%s: This Kernel does not support "
3886 "MSI-X. Defaulting to INTA", VXGE_DRIVER_NAME
);
3890 /* Configure whether MSI-X or IRQL. */
3891 switch (*intr_type
) {
3893 device_config
->intr_mode
= VXGE_HW_INTR_MODE_IRQLINE
;
3897 device_config
->intr_mode
= VXGE_HW_INTR_MODE_MSIX_ONE_SHOT
;
3901 /* Timer period between device poll */
3902 device_config
->device_poll_millis
= VXGE_TIMER_DELAY
;
3904 /* Configure mac based steering. */
3905 device_config
->rts_mac_en
= addr_learn_en
;
3907 /* Configure Vpaths */
3908 device_config
->rth_it_type
= VXGE_HW_RTH_IT_TYPE_MULTI_IT
;
3910 vxge_debug_ll_config(VXGE_TRACE
, "%s : Device Config Params ",
3912 vxge_debug_ll_config(VXGE_TRACE
, "intr_mode : %d",
3913 device_config
->intr_mode
);
3914 vxge_debug_ll_config(VXGE_TRACE
, "device_poll_millis : %d",
3915 device_config
->device_poll_millis
);
3916 vxge_debug_ll_config(VXGE_TRACE
, "rth_en : %d",
3917 device_config
->rth_en
);
3918 vxge_debug_ll_config(VXGE_TRACE
, "rth_it_type : %d",
3919 device_config
->rth_it_type
);
3922 static void vxge_print_parm(struct vxgedev
*vdev
, u64 vpath_mask
)
3926 vxge_debug_init(VXGE_TRACE
,
3927 "%s: %d Vpath(s) opened",
3928 vdev
->ndev
->name
, vdev
->no_of_vpath
);
3930 switch (vdev
->config
.intr_type
) {
3932 vxge_debug_init(VXGE_TRACE
,
3933 "%s: Interrupt type INTA", vdev
->ndev
->name
);
3937 vxge_debug_init(VXGE_TRACE
,
3938 "%s: Interrupt type MSI-X", vdev
->ndev
->name
);
3942 if (vdev
->config
.rth_steering
) {
3943 vxge_debug_init(VXGE_TRACE
,
3944 "%s: RTH steering enabled for TCP_IPV4",
3947 vxge_debug_init(VXGE_TRACE
,
3948 "%s: RTH steering disabled", vdev
->ndev
->name
);
3951 switch (vdev
->config
.tx_steering_type
) {
3953 vxge_debug_init(VXGE_TRACE
,
3954 "%s: Tx steering disabled", vdev
->ndev
->name
);
3956 case TX_PRIORITY_STEERING
:
3957 vxge_debug_init(VXGE_TRACE
,
3958 "%s: Unsupported tx steering option",
3960 vxge_debug_init(VXGE_TRACE
,
3961 "%s: Tx steering disabled", vdev
->ndev
->name
);
3962 vdev
->config
.tx_steering_type
= 0;
3964 case TX_VLAN_STEERING
:
3965 vxge_debug_init(VXGE_TRACE
,
3966 "%s: Unsupported tx steering option",
3968 vxge_debug_init(VXGE_TRACE
,
3969 "%s: Tx steering disabled", vdev
->ndev
->name
);
3970 vdev
->config
.tx_steering_type
= 0;
3972 case TX_MULTIQ_STEERING
:
3973 vxge_debug_init(VXGE_TRACE
,
3974 "%s: Tx multiqueue steering enabled",
3977 case TX_PORT_STEERING
:
3978 vxge_debug_init(VXGE_TRACE
,
3979 "%s: Tx port steering enabled",
3983 vxge_debug_init(VXGE_ERR
,
3984 "%s: Unsupported tx steering type",
3986 vxge_debug_init(VXGE_TRACE
,
3987 "%s: Tx steering disabled", vdev
->ndev
->name
);
3988 vdev
->config
.tx_steering_type
= 0;
3991 if (vdev
->config
.addr_learn_en
)
3992 vxge_debug_init(VXGE_TRACE
,
3993 "%s: MAC Address learning enabled", vdev
->ndev
->name
);
3995 for (i
= 0; i
< VXGE_HW_MAX_VIRTUAL_PATHS
; i
++) {
3996 if (!vxge_bVALn(vpath_mask
, i
, 1))
3998 vxge_debug_ll_config(VXGE_TRACE
,
3999 "%s: MTU size - %d", vdev
->ndev
->name
,
4001 config
.vp_config
[i
].mtu
);
4002 vxge_debug_init(VXGE_TRACE
,
4003 "%s: VLAN tag stripping %s", vdev
->ndev
->name
,
4005 config
.vp_config
[i
].rpa_strip_vlan_tag
4006 ? "Enabled" : "Disabled");
4007 vxge_debug_ll_config(VXGE_TRACE
,
4008 "%s: Max frags : %d", vdev
->ndev
->name
,
4010 config
.vp_config
[i
].fifo
.max_frags
);
4017 * vxge_pm_suspend - vxge power management suspend entry point
4020 static int vxge_pm_suspend(struct pci_dev
*pdev
, pm_message_t state
)
4025 * vxge_pm_resume - vxge power management resume entry point
4028 static int vxge_pm_resume(struct pci_dev
*pdev
)
4036 * vxge_io_error_detected - called when PCI error is detected
4037 * @pdev: Pointer to PCI device
4038 * @state: The current pci connection state
4040 * This function is called after a PCI bus error affecting
4041 * this device has been detected.
4043 static pci_ers_result_t
vxge_io_error_detected(struct pci_dev
*pdev
,
4044 pci_channel_state_t state
)
4046 struct __vxge_hw_device
*hldev
= pci_get_drvdata(pdev
);
4047 struct net_device
*netdev
= hldev
->ndev
;
4049 netif_device_detach(netdev
);
4051 if (state
== pci_channel_io_perm_failure
)
4052 return PCI_ERS_RESULT_DISCONNECT
;
4054 if (netif_running(netdev
)) {
4055 /* Bring down the card, while avoiding PCI I/O */
4056 do_vxge_close(netdev
, 0);
4059 pci_disable_device(pdev
);
4061 return PCI_ERS_RESULT_NEED_RESET
;
4065 * vxge_io_slot_reset - called after the pci bus has been reset.
4066 * @pdev: Pointer to PCI device
4068 * Restart the card from scratch, as if from a cold-boot.
4069 * At this point, the card has exprienced a hard reset,
4070 * followed by fixups by BIOS, and has its config space
4071 * set up identically to what it was at cold boot.
4073 static pci_ers_result_t
vxge_io_slot_reset(struct pci_dev
*pdev
)
4075 struct __vxge_hw_device
*hldev
= pci_get_drvdata(pdev
);
4076 struct net_device
*netdev
= hldev
->ndev
;
4078 struct vxgedev
*vdev
= netdev_priv(netdev
);
4080 if (pci_enable_device(pdev
)) {
4081 netdev_err(netdev
, "Cannot re-enable device after reset\n");
4082 return PCI_ERS_RESULT_DISCONNECT
;
4085 pci_set_master(pdev
);
4086 do_vxge_reset(vdev
, VXGE_LL_FULL_RESET
);
4088 return PCI_ERS_RESULT_RECOVERED
;
4092 * vxge_io_resume - called when traffic can start flowing again.
4093 * @pdev: Pointer to PCI device
4095 * This callback is called when the error recovery driver tells
4096 * us that its OK to resume normal operation.
4098 static void vxge_io_resume(struct pci_dev
*pdev
)
4100 struct __vxge_hw_device
*hldev
= pci_get_drvdata(pdev
);
4101 struct net_device
*netdev
= hldev
->ndev
;
4103 if (netif_running(netdev
)) {
4104 if (vxge_open(netdev
)) {
4106 "Can't bring device back up after reset\n");
4111 netif_device_attach(netdev
);
4114 static inline u32
vxge_get_num_vfs(u64 function_mode
)
4116 u32 num_functions
= 0;
4118 switch (function_mode
) {
4119 case VXGE_HW_FUNCTION_MODE_MULTI_FUNCTION
:
4120 case VXGE_HW_FUNCTION_MODE_SRIOV_8
:
4123 case VXGE_HW_FUNCTION_MODE_SINGLE_FUNCTION
:
4126 case VXGE_HW_FUNCTION_MODE_SRIOV
:
4127 case VXGE_HW_FUNCTION_MODE_MRIOV
:
4128 case VXGE_HW_FUNCTION_MODE_MULTI_FUNCTION_17
:
4131 case VXGE_HW_FUNCTION_MODE_SRIOV_4
:
4134 case VXGE_HW_FUNCTION_MODE_MULTI_FUNCTION_2
:
4137 case VXGE_HW_FUNCTION_MODE_MRIOV_8
:
4138 num_functions
= 8; /* TODO */
4141 return num_functions
;
4144 int vxge_fw_upgrade(struct vxgedev
*vdev
, char *fw_name
, int override
)
4146 struct __vxge_hw_device
*hldev
= vdev
->devh
;
4147 u32 maj
, min
, bld
, cmaj
, cmin
, cbld
;
4148 enum vxge_hw_status status
;
4149 const struct firmware
*fw
;
4152 ret
= request_firmware(&fw
, fw_name
, &vdev
->pdev
->dev
);
4154 vxge_debug_init(VXGE_ERR
, "%s: Firmware file '%s' not found",
4155 VXGE_DRIVER_NAME
, fw_name
);
4159 /* Load the new firmware onto the adapter */
4160 status
= vxge_update_fw_image(hldev
, fw
->data
, fw
->size
);
4161 if (status
!= VXGE_HW_OK
) {
4162 vxge_debug_init(VXGE_ERR
,
4163 "%s: FW image download to adapter failed '%s'.",
4164 VXGE_DRIVER_NAME
, fw_name
);
4169 /* Read the version of the new firmware */
4170 status
= vxge_hw_upgrade_read_version(hldev
, &maj
, &min
, &bld
);
4171 if (status
!= VXGE_HW_OK
) {
4172 vxge_debug_init(VXGE_ERR
,
4173 "%s: Upgrade read version failed '%s'.",
4174 VXGE_DRIVER_NAME
, fw_name
);
4179 cmaj
= vdev
->config
.device_hw_info
.fw_version
.major
;
4180 cmin
= vdev
->config
.device_hw_info
.fw_version
.minor
;
4181 cbld
= vdev
->config
.device_hw_info
.fw_version
.build
;
4182 /* It's possible the version in /lib/firmware is not the latest version.
4183 * If so, we could get into a loop of trying to upgrade to the latest
4184 * and flashing the older version.
4186 if (VXGE_FW_VER(maj
, min
, bld
) == VXGE_FW_VER(cmaj
, cmin
, cbld
) &&
4192 printk(KERN_NOTICE
"Upgrade to firmware version %d.%d.%d commencing\n",
4195 /* Flash the adapter with the new firmware */
4196 status
= vxge_hw_flash_fw(hldev
);
4197 if (status
!= VXGE_HW_OK
) {
4198 vxge_debug_init(VXGE_ERR
, "%s: Upgrade commit failed '%s'.",
4199 VXGE_DRIVER_NAME
, fw_name
);
4204 printk(KERN_NOTICE
"Upgrade of firmware successful! Adapter must be "
4205 "hard reset before using, thus requiring a system reboot or a "
4206 "hotplug event.\n");
4209 release_firmware(fw
);
4213 static int vxge_probe_fw_update(struct vxgedev
*vdev
)
4219 maj
= vdev
->config
.device_hw_info
.fw_version
.major
;
4220 min
= vdev
->config
.device_hw_info
.fw_version
.minor
;
4221 bld
= vdev
->config
.device_hw_info
.fw_version
.build
;
4223 if (VXGE_FW_VER(maj
, min
, bld
) == VXGE_CERT_FW_VER
)
4226 /* Ignore the build number when determining if the current firmware is
4227 * "too new" to load the driver
4229 if (VXGE_FW_VER(maj
, min
, 0) > VXGE_CERT_FW_VER
) {
4230 vxge_debug_init(VXGE_ERR
, "%s: Firmware newer than last known "
4231 "version, unable to load driver\n",
4236 /* Firmware 1.4.4 and older cannot be upgraded, and is too ancient to
4237 * work with this driver.
4239 if (VXGE_FW_VER(maj
, min
, bld
) <= VXGE_FW_DEAD_VER
) {
4240 vxge_debug_init(VXGE_ERR
, "%s: Firmware %d.%d.%d cannot be "
4241 "upgraded\n", VXGE_DRIVER_NAME
, maj
, min
, bld
);
4245 /* If file not specified, determine gPXE or not */
4246 if (VXGE_FW_VER(maj
, min
, bld
) >= VXGE_EPROM_FW_VER
) {
4248 for (i
= 0; i
< VXGE_HW_MAX_ROM_IMAGES
; i
++)
4249 if (vdev
->devh
->eprom_versions
[i
]) {
4255 fw_name
= "vxge/X3fw-pxe.ncf";
4257 fw_name
= "vxge/X3fw.ncf";
4259 ret
= vxge_fw_upgrade(vdev
, fw_name
, 0);
4260 /* -EINVAL and -ENOENT are not fatal errors for flashing firmware on
4261 * probe, so ignore them
4263 if (ret
!= -EINVAL
&& ret
!= -ENOENT
)
4268 if (VXGE_FW_VER(VXGE_CERT_FW_VER_MAJOR
, VXGE_CERT_FW_VER_MINOR
, 0) >
4269 VXGE_FW_VER(maj
, min
, 0)) {
4270 vxge_debug_init(VXGE_ERR
, "%s: Firmware %d.%d.%d is too old to"
4271 " be used with this driver.",
4272 VXGE_DRIVER_NAME
, maj
, min
, bld
);
4279 static int is_sriov_initialized(struct pci_dev
*pdev
)
4284 pos
= pci_find_ext_capability(pdev
, PCI_EXT_CAP_ID_SRIOV
);
4286 pci_read_config_word(pdev
, pos
+ PCI_SRIOV_CTRL
, &ctrl
);
4287 if (ctrl
& PCI_SRIOV_CTRL_VFE
)
4293 static const struct vxge_hw_uld_cbs vxge_callbacks
= {
4294 .link_up
= vxge_callback_link_up
,
4295 .link_down
= vxge_callback_link_down
,
4296 .crit_err
= vxge_callback_crit_err
,
4301 * @pdev : structure containing the PCI related information of the device.
4302 * @pre: List of PCI devices supported by the driver listed in vxge_id_table.
4304 * This function is called when a new PCI device gets detected and initializes
4307 * returns 0 on success and negative on failure.
4311 vxge_probe(struct pci_dev
*pdev
, const struct pci_device_id
*pre
)
4313 struct __vxge_hw_device
*hldev
;
4314 enum vxge_hw_status status
;
4318 struct vxgedev
*vdev
;
4319 struct vxge_config
*ll_config
= NULL
;
4320 struct vxge_hw_device_config
*device_config
= NULL
;
4321 struct vxge_hw_device_attr attr
;
4322 int i
, j
, no_of_vpath
= 0, max_vpath_supported
= 0;
4324 struct vxge_mac_addrs
*entry
;
4325 static int bus
= -1, device
= -1;
4328 enum vxge_hw_status is_privileged
;
4332 vxge_debug_entryexit(VXGE_TRACE
, "%s:%d", __func__
, __LINE__
);
4335 /* In SRIOV-17 mode, functions of the same adapter
4336 * can be deployed on different buses
4338 if (((bus
!= pdev
->bus
->number
) || (device
!= PCI_SLOT(pdev
->devfn
))) &&
4342 bus
= pdev
->bus
->number
;
4343 device
= PCI_SLOT(pdev
->devfn
);
4346 if (driver_config
->config_dev_cnt
&&
4347 (driver_config
->config_dev_cnt
!=
4348 driver_config
->total_dev_cnt
))
4349 vxge_debug_init(VXGE_ERR
,
4350 "%s: Configured %d of %d devices",
4352 driver_config
->config_dev_cnt
,
4353 driver_config
->total_dev_cnt
);
4354 driver_config
->config_dev_cnt
= 0;
4355 driver_config
->total_dev_cnt
= 0;
4358 /* Now making the CPU based no of vpath calculation
4359 * applicable for individual functions as well.
4361 driver_config
->g_no_cpus
= 0;
4362 driver_config
->vpath_per_dev
= max_config_vpath
;
4364 driver_config
->total_dev_cnt
++;
4365 if (++driver_config
->config_dev_cnt
> max_config_dev
) {
4370 device_config
= kzalloc(sizeof(struct vxge_hw_device_config
),
4372 if (!device_config
) {
4374 vxge_debug_init(VXGE_ERR
,
4375 "device_config : malloc failed %s %d",
4376 __FILE__
, __LINE__
);
4380 ll_config
= kzalloc(sizeof(struct vxge_config
), GFP_KERNEL
);
4383 vxge_debug_init(VXGE_ERR
,
4384 "device_config : malloc failed %s %d",
4385 __FILE__
, __LINE__
);
4388 ll_config
->tx_steering_type
= TX_MULTIQ_STEERING
;
4389 ll_config
->intr_type
= MSI_X
;
4390 ll_config
->napi_weight
= NEW_NAPI_WEIGHT
;
4391 ll_config
->rth_steering
= RTH_STEERING
;
4393 /* get the default configuration parameters */
4394 vxge_hw_device_config_default_get(device_config
);
4396 /* initialize configuration parameters */
4397 vxge_device_config_init(device_config
, &ll_config
->intr_type
);
4399 ret
= pci_enable_device(pdev
);
4401 vxge_debug_init(VXGE_ERR
,
4402 "%s : can not enable PCI device", __func__
);
4406 if (!pci_set_dma_mask(pdev
, DMA_BIT_MASK(64))) {
4407 vxge_debug_ll_config(VXGE_TRACE
,
4408 "%s : using 64bit DMA", __func__
);
4412 if (pci_set_consistent_dma_mask(pdev
,
4413 DMA_BIT_MASK(64))) {
4414 vxge_debug_init(VXGE_ERR
,
4415 "%s : unable to obtain 64bit DMA for "
4416 "consistent allocations", __func__
);
4420 } else if (!pci_set_dma_mask(pdev
, DMA_BIT_MASK(32))) {
4421 vxge_debug_ll_config(VXGE_TRACE
,
4422 "%s : using 32bit DMA", __func__
);
4428 ret
= pci_request_region(pdev
, 0, VXGE_DRIVER_NAME
);
4430 vxge_debug_init(VXGE_ERR
,
4431 "%s : request regions failed", __func__
);
4435 pci_set_master(pdev
);
4437 attr
.bar0
= pci_ioremap_bar(pdev
, 0);
4439 vxge_debug_init(VXGE_ERR
,
4440 "%s : cannot remap io memory bar0", __func__
);
4444 vxge_debug_ll_config(VXGE_TRACE
,
4445 "pci ioremap bar0: %p:0x%llx",
4447 (unsigned long long)pci_resource_start(pdev
, 0));
4449 status
= vxge_hw_device_hw_info_get(attr
.bar0
,
4450 &ll_config
->device_hw_info
);
4451 if (status
!= VXGE_HW_OK
) {
4452 vxge_debug_init(VXGE_ERR
,
4453 "%s: Reading of hardware info failed."
4454 "Please try upgrading the firmware.", VXGE_DRIVER_NAME
);
4459 vpath_mask
= ll_config
->device_hw_info
.vpath_mask
;
4460 if (vpath_mask
== 0) {
4461 vxge_debug_ll_config(VXGE_TRACE
,
4462 "%s: No vpaths available in device", VXGE_DRIVER_NAME
);
4467 vxge_debug_ll_config(VXGE_TRACE
,
4468 "%s:%d Vpath mask = %llx", __func__
, __LINE__
,
4469 (unsigned long long)vpath_mask
);
4471 function_mode
= ll_config
->device_hw_info
.function_mode
;
4472 host_type
= ll_config
->device_hw_info
.host_type
;
4473 is_privileged
= __vxge_hw_device_is_privilaged(host_type
,
4474 ll_config
->device_hw_info
.func_id
);
4476 /* Check how many vpaths are available */
4477 for (i
= 0; i
< VXGE_HW_MAX_VIRTUAL_PATHS
; i
++) {
4478 if (!((vpath_mask
) & vxge_mBIT(i
)))
4480 max_vpath_supported
++;
4484 num_vfs
= vxge_get_num_vfs(function_mode
) - 1;
4486 /* Enable SRIOV mode, if firmware has SRIOV support and if it is a PF */
4487 if (is_sriov(function_mode
) && !is_sriov_initialized(pdev
) &&
4488 (ll_config
->intr_type
!= INTA
)) {
4489 ret
= pci_enable_sriov(pdev
, num_vfs
);
4491 vxge_debug_ll_config(VXGE_ERR
,
4492 "Failed in enabling SRIOV mode: %d\n", ret
);
4493 /* No need to fail out, as an error here is non-fatal */
4497 * Configure vpaths and get driver configured number of vpaths
4498 * which is less than or equal to the maximum vpaths per function.
4500 no_of_vpath
= vxge_config_vpaths(device_config
, vpath_mask
, ll_config
);
4502 vxge_debug_ll_config(VXGE_ERR
,
4503 "%s: No more vpaths to configure", VXGE_DRIVER_NAME
);
4508 /* Setting driver callbacks */
4509 attr
.uld_callbacks
= &vxge_callbacks
;
4511 status
= vxge_hw_device_initialize(&hldev
, &attr
, device_config
);
4512 if (status
!= VXGE_HW_OK
) {
4513 vxge_debug_init(VXGE_ERR
,
4514 "Failed to initialize device (%d)", status
);
4519 if (VXGE_FW_VER(ll_config
->device_hw_info
.fw_version
.major
,
4520 ll_config
->device_hw_info
.fw_version
.minor
,
4521 ll_config
->device_hw_info
.fw_version
.build
) >=
4522 VXGE_EPROM_FW_VER
) {
4523 struct eprom_image img
[VXGE_HW_MAX_ROM_IMAGES
];
4525 status
= vxge_hw_vpath_eprom_img_ver_get(hldev
, img
);
4526 if (status
!= VXGE_HW_OK
) {
4527 vxge_debug_init(VXGE_ERR
, "%s: Reading of EPROM failed",
4529 /* This is a non-fatal error, continue */
4532 for (i
= 0; i
< VXGE_HW_MAX_ROM_IMAGES
; i
++) {
4533 hldev
->eprom_versions
[i
] = img
[i
].version
;
4534 if (!img
[i
].is_valid
)
4536 vxge_debug_init(VXGE_TRACE
, "%s: EPROM %d, version "
4537 "%d.%d.%d.%d", VXGE_DRIVER_NAME
, i
,
4538 VXGE_EPROM_IMG_MAJOR(img
[i
].version
),
4539 VXGE_EPROM_IMG_MINOR(img
[i
].version
),
4540 VXGE_EPROM_IMG_FIX(img
[i
].version
),
4541 VXGE_EPROM_IMG_BUILD(img
[i
].version
));
4545 /* if FCS stripping is not disabled in MAC fail driver load */
4546 status
= vxge_hw_vpath_strip_fcs_check(hldev
, vpath_mask
);
4547 if (status
!= VXGE_HW_OK
) {
4548 vxge_debug_init(VXGE_ERR
, "%s: FCS stripping is enabled in MAC"
4549 " failing driver load", VXGE_DRIVER_NAME
);
4554 /* Always enable HWTS. This will always cause the FCS to be invalid,
4555 * due to the fact that HWTS is using the FCS as the location of the
4556 * timestamp. The HW FCS checking will still correctly determine if
4557 * there is a valid checksum, and the FCS is being removed by the driver
4558 * anyway. So no fucntionality is being lost. Since it is always
4559 * enabled, we now simply use the ioctl call to set whether or not the
4560 * driver should be paying attention to the HWTS.
4562 if (is_privileged
== VXGE_HW_OK
) {
4563 status
= vxge_timestamp_config(hldev
);
4564 if (status
!= VXGE_HW_OK
) {
4565 vxge_debug_init(VXGE_ERR
, "%s: HWTS enable failed",
4572 vxge_hw_device_debug_set(hldev
, VXGE_ERR
, VXGE_COMPONENT_LL
);
4574 /* set private device info */
4575 pci_set_drvdata(pdev
, hldev
);
4577 ll_config
->fifo_indicate_max_pkts
= VXGE_FIFO_INDICATE_MAX_PKTS
;
4578 ll_config
->addr_learn_en
= addr_learn_en
;
4579 ll_config
->rth_algorithm
= RTH_ALG_JENKINS
;
4580 ll_config
->rth_hash_type_tcpipv4
= 1;
4581 ll_config
->rth_hash_type_ipv4
= 0;
4582 ll_config
->rth_hash_type_tcpipv6
= 0;
4583 ll_config
->rth_hash_type_ipv6
= 0;
4584 ll_config
->rth_hash_type_tcpipv6ex
= 0;
4585 ll_config
->rth_hash_type_ipv6ex
= 0;
4586 ll_config
->rth_bkt_sz
= RTH_BUCKET_SIZE
;
4587 ll_config
->tx_pause_enable
= VXGE_PAUSE_CTRL_ENABLE
;
4588 ll_config
->rx_pause_enable
= VXGE_PAUSE_CTRL_ENABLE
;
4590 ret
= vxge_device_register(hldev
, ll_config
, high_dma
, no_of_vpath
,
4597 ret
= vxge_probe_fw_update(vdev
);
4601 vxge_hw_device_debug_set(hldev
, VXGE_TRACE
, VXGE_COMPONENT_LL
);
4602 VXGE_COPY_DEBUG_INFO_TO_LL(vdev
, vxge_hw_device_error_level_get(hldev
),
4603 vxge_hw_device_trace_level_get(hldev
));
4605 /* set private HW device info */
4606 vdev
->mtu
= VXGE_HW_DEFAULT_MTU
;
4607 vdev
->bar0
= attr
.bar0
;
4608 vdev
->max_vpath_supported
= max_vpath_supported
;
4609 vdev
->no_of_vpath
= no_of_vpath
;
4611 /* Virtual Path count */
4612 for (i
= 0, j
= 0; i
< VXGE_HW_MAX_VIRTUAL_PATHS
; i
++) {
4613 if (!vxge_bVALn(vpath_mask
, i
, 1))
4615 if (j
>= vdev
->no_of_vpath
)
4618 vdev
->vpaths
[j
].is_configured
= 1;
4619 vdev
->vpaths
[j
].device_id
= i
;
4620 vdev
->vpaths
[j
].ring
.driver_id
= j
;
4621 vdev
->vpaths
[j
].vdev
= vdev
;
4622 vdev
->vpaths
[j
].max_mac_addr_cnt
= max_mac_vpath
;
4623 memcpy((u8
*)vdev
->vpaths
[j
].macaddr
,
4624 ll_config
->device_hw_info
.mac_addrs
[i
],
4627 /* Initialize the mac address list header */
4628 INIT_LIST_HEAD(&vdev
->vpaths
[j
].mac_addr_list
);
4630 vdev
->vpaths
[j
].mac_addr_cnt
= 0;
4631 vdev
->vpaths
[j
].mcast_addr_cnt
= 0;
4634 vdev
->exec_mode
= VXGE_EXEC_MODE_DISABLE
;
4635 vdev
->max_config_port
= max_config_port
;
4637 vdev
->vlan_tag_strip
= vlan_tag_strip
;
4639 /* map the hashing selector table to the configured vpaths */
4640 for (i
= 0; i
< vdev
->no_of_vpath
; i
++)
4641 vdev
->vpath_selector
[i
] = vpath_selector
[i
];
4643 macaddr
= (u8
*)vdev
->vpaths
[0].macaddr
;
4645 ll_config
->device_hw_info
.serial_number
[VXGE_HW_INFO_LEN
- 1] = '\0';
4646 ll_config
->device_hw_info
.product_desc
[VXGE_HW_INFO_LEN
- 1] = '\0';
4647 ll_config
->device_hw_info
.part_number
[VXGE_HW_INFO_LEN
- 1] = '\0';
4649 vxge_debug_init(VXGE_TRACE
, "%s: SERIAL NUMBER: %s",
4650 vdev
->ndev
->name
, ll_config
->device_hw_info
.serial_number
);
4652 vxge_debug_init(VXGE_TRACE
, "%s: PART NUMBER: %s",
4653 vdev
->ndev
->name
, ll_config
->device_hw_info
.part_number
);
4655 vxge_debug_init(VXGE_TRACE
, "%s: Neterion %s Server Adapter",
4656 vdev
->ndev
->name
, ll_config
->device_hw_info
.product_desc
);
4658 vxge_debug_init(VXGE_TRACE
, "%s: MAC ADDR: %pM",
4659 vdev
->ndev
->name
, macaddr
);
4661 vxge_debug_init(VXGE_TRACE
, "%s: Link Width x%d",
4662 vdev
->ndev
->name
, vxge_hw_device_link_width_get(hldev
));
4664 vxge_debug_init(VXGE_TRACE
,
4665 "%s: Firmware version : %s Date : %s", vdev
->ndev
->name
,
4666 ll_config
->device_hw_info
.fw_version
.version
,
4667 ll_config
->device_hw_info
.fw_date
.date
);
4670 switch (ll_config
->device_hw_info
.function_mode
) {
4671 case VXGE_HW_FUNCTION_MODE_SINGLE_FUNCTION
:
4672 vxge_debug_init(VXGE_TRACE
,
4673 "%s: Single Function Mode Enabled", vdev
->ndev
->name
);
4675 case VXGE_HW_FUNCTION_MODE_MULTI_FUNCTION
:
4676 vxge_debug_init(VXGE_TRACE
,
4677 "%s: Multi Function Mode Enabled", vdev
->ndev
->name
);
4679 case VXGE_HW_FUNCTION_MODE_SRIOV
:
4680 vxge_debug_init(VXGE_TRACE
,
4681 "%s: Single Root IOV Mode Enabled", vdev
->ndev
->name
);
4683 case VXGE_HW_FUNCTION_MODE_MRIOV
:
4684 vxge_debug_init(VXGE_TRACE
,
4685 "%s: Multi Root IOV Mode Enabled", vdev
->ndev
->name
);
4690 vxge_print_parm(vdev
, vpath_mask
);
4692 /* Store the fw version for ethttool option */
4693 strcpy(vdev
->fw_version
, ll_config
->device_hw_info
.fw_version
.version
);
4694 memcpy(vdev
->ndev
->dev_addr
, (u8
*)vdev
->vpaths
[0].macaddr
, ETH_ALEN
);
4696 /* Copy the station mac address to the list */
4697 for (i
= 0; i
< vdev
->no_of_vpath
; i
++) {
4698 entry
= kzalloc(sizeof(struct vxge_mac_addrs
), GFP_KERNEL
);
4699 if (NULL
== entry
) {
4700 vxge_debug_init(VXGE_ERR
,
4701 "%s: mac_addr_list : memory allocation failed",
4706 macaddr
= (u8
*)&entry
->macaddr
;
4707 memcpy(macaddr
, vdev
->ndev
->dev_addr
, ETH_ALEN
);
4708 list_add(&entry
->item
, &vdev
->vpaths
[i
].mac_addr_list
);
4709 vdev
->vpaths
[i
].mac_addr_cnt
= 1;
4712 kfree(device_config
);
4715 * INTA is shared in multi-function mode. This is unlike the INTA
4716 * implementation in MR mode, where each VH has its own INTA message.
4717 * - INTA is masked (disabled) as long as at least one function sets
4718 * its TITAN_MASK_ALL_INT.ALARM bit.
4719 * - INTA is unmasked (enabled) when all enabled functions have cleared
4720 * their own TITAN_MASK_ALL_INT.ALARM bit.
4721 * The TITAN_MASK_ALL_INT ALARM & TRAFFIC bits are cleared on power up.
4722 * Though this driver leaves the top level interrupts unmasked while
4723 * leaving the required module interrupt bits masked on exit, there
4724 * could be a rougue driver around that does not follow this procedure
4725 * resulting in a failure to generate interrupts. The following code is
4726 * present to prevent such a failure.
4729 if (ll_config
->device_hw_info
.function_mode
==
4730 VXGE_HW_FUNCTION_MODE_MULTI_FUNCTION
)
4731 if (vdev
->config
.intr_type
== INTA
)
4732 vxge_hw_device_unmask_all(hldev
);
4734 vxge_debug_entryexit(VXGE_TRACE
, "%s: %s:%d Exiting...",
4735 vdev
->ndev
->name
, __func__
, __LINE__
);
4737 vxge_hw_device_debug_set(hldev
, VXGE_ERR
, VXGE_COMPONENT_LL
);
4738 VXGE_COPY_DEBUG_INFO_TO_LL(vdev
, vxge_hw_device_error_level_get(hldev
),
4739 vxge_hw_device_trace_level_get(hldev
));
4745 for (i
= 0; i
< vdev
->no_of_vpath
; i
++)
4746 vxge_free_mac_add_list(&vdev
->vpaths
[i
]);
4748 vxge_device_unregister(hldev
);
4750 vxge_hw_device_terminate(hldev
);
4751 pci_disable_sriov(pdev
);
4755 pci_release_region(pdev
, 0);
4757 pci_disable_device(pdev
);
4760 kfree(device_config
);
4761 driver_config
->config_dev_cnt
--;
4762 driver_config
->total_dev_cnt
--;
4767 * vxge_rem_nic - Free the PCI device
4768 * @pdev: structure containing the PCI related information of the device.
4769 * Description: This function is called by the Pci subsystem to release a
4770 * PCI device and free up all resource held up by the device.
4772 static void vxge_remove(struct pci_dev
*pdev
)
4774 struct __vxge_hw_device
*hldev
;
4775 struct vxgedev
*vdev
;
4778 hldev
= pci_get_drvdata(pdev
);
4782 vdev
= netdev_priv(hldev
->ndev
);
4784 vxge_debug_entryexit(vdev
->level_trace
, "%s:%d", __func__
, __LINE__
);
4785 vxge_debug_init(vdev
->level_trace
, "%s : removing PCI device...",
4788 for (i
= 0; i
< vdev
->no_of_vpath
; i
++)
4789 vxge_free_mac_add_list(&vdev
->vpaths
[i
]);
4791 vxge_device_unregister(hldev
);
4792 /* Do not call pci_disable_sriov here, as it will break child devices */
4793 vxge_hw_device_terminate(hldev
);
4794 iounmap(vdev
->bar0
);
4795 pci_release_region(pdev
, 0);
4796 pci_disable_device(pdev
);
4797 driver_config
->config_dev_cnt
--;
4798 driver_config
->total_dev_cnt
--;
4800 vxge_debug_init(vdev
->level_trace
, "%s:%d Device unregistered",
4801 __func__
, __LINE__
);
4802 vxge_debug_entryexit(vdev
->level_trace
, "%s:%d Exiting...", __func__
,
4806 static const struct pci_error_handlers vxge_err_handler
= {
4807 .error_detected
= vxge_io_error_detected
,
4808 .slot_reset
= vxge_io_slot_reset
,
4809 .resume
= vxge_io_resume
,
4812 static struct pci_driver vxge_driver
= {
4813 .name
= VXGE_DRIVER_NAME
,
4814 .id_table
= vxge_id_table
,
4815 .probe
= vxge_probe
,
4816 .remove
= vxge_remove
,
4818 .suspend
= vxge_pm_suspend
,
4819 .resume
= vxge_pm_resume
,
4821 .err_handler
= &vxge_err_handler
,
4829 pr_info("Copyright(c) 2002-2010 Exar Corp.\n");
4830 pr_info("Driver version: %s\n", DRV_VERSION
);
4834 driver_config
= kzalloc(sizeof(struct vxge_drv_config
), GFP_KERNEL
);
4838 ret
= pci_register_driver(&vxge_driver
);
4840 kfree(driver_config
);
4844 if (driver_config
->config_dev_cnt
&&
4845 (driver_config
->config_dev_cnt
!= driver_config
->total_dev_cnt
))
4846 vxge_debug_init(VXGE_ERR
,
4847 "%s: Configured %d of %d devices",
4848 VXGE_DRIVER_NAME
, driver_config
->config_dev_cnt
,
4849 driver_config
->total_dev_cnt
);
4857 pci_unregister_driver(&vxge_driver
);
4858 kfree(driver_config
);
4860 module_init(vxge_starter
);
4861 module_exit(vxge_closer
);