2 * Copyright (C) 2005 - 2016 Broadcom
5 * This program is free software; you can redistribute it and/or
6 * modify it under the terms of the GNU General Public License version 2
7 * as published by the Free Software Foundation. The full GNU General
8 * Public License is included in this distribution in the file called COPYING.
10 * Contact Information:
11 * linux-drivers@emulex.com
15 * Costa Mesa, CA 92626
18 #include <linux/prefetch.h>
19 #include <linux/module.h>
22 #include <asm/div64.h>
23 #include <linux/aer.h>
24 #include <linux/if_bridge.h>
25 #include <net/busy_poll.h>
26 #include <net/vxlan.h>
28 MODULE_VERSION(DRV_VER
);
29 MODULE_DESCRIPTION(DRV_DESC
" " DRV_VER
);
30 MODULE_AUTHOR("Emulex Corporation");
31 MODULE_LICENSE("GPL");
33 /* num_vfs module param is obsolete.
34 * Use sysfs method to enable/disable VFs.
36 static unsigned int num_vfs
;
37 module_param(num_vfs
, uint
, S_IRUGO
);
38 MODULE_PARM_DESC(num_vfs
, "Number of PCI VFs to initialize");
40 static ushort rx_frag_size
= 2048;
41 module_param(rx_frag_size
, ushort
, S_IRUGO
);
42 MODULE_PARM_DESC(rx_frag_size
, "Size of a fragment that holds rcvd data.");
44 /* Per-module error detection/recovery workq shared across all functions.
45 * Each function schedules its own work request on this shared workq.
47 struct workqueue_struct
*be_err_recovery_workq
;
49 static const struct pci_device_id be_dev_ids
[] = {
50 { PCI_DEVICE(BE_VENDOR_ID
, BE_DEVICE_ID1
) },
51 { PCI_DEVICE(BE_VENDOR_ID
, BE_DEVICE_ID2
) },
52 { PCI_DEVICE(BE_VENDOR_ID
, OC_DEVICE_ID1
) },
53 { PCI_DEVICE(BE_VENDOR_ID
, OC_DEVICE_ID2
) },
54 { PCI_DEVICE(EMULEX_VENDOR_ID
, OC_DEVICE_ID3
)},
55 { PCI_DEVICE(EMULEX_VENDOR_ID
, OC_DEVICE_ID4
)},
56 { PCI_DEVICE(EMULEX_VENDOR_ID
, OC_DEVICE_ID5
)},
57 { PCI_DEVICE(EMULEX_VENDOR_ID
, OC_DEVICE_ID6
)},
60 MODULE_DEVICE_TABLE(pci
, be_dev_ids
);
62 /* Workqueue used by all functions for defering cmd calls to the adapter */
63 struct workqueue_struct
*be_wq
;
65 /* UE Status Low CSR */
66 static const char * const ue_status_low_desc
[] = {
101 /* UE Status High CSR */
102 static const char * const ue_status_hi_desc
[] = {
137 #define BE_VF_IF_EN_FLAGS (BE_IF_FLAGS_UNTAGGED | \
138 BE_IF_FLAGS_BROADCAST | \
139 BE_IF_FLAGS_MULTICAST | \
140 BE_IF_FLAGS_PASS_L3L4_ERRORS)
142 static void be_queue_free(struct be_adapter
*adapter
, struct be_queue_info
*q
)
144 struct be_dma_mem
*mem
= &q
->dma_mem
;
147 dma_free_coherent(&adapter
->pdev
->dev
, mem
->size
, mem
->va
,
153 static int be_queue_alloc(struct be_adapter
*adapter
, struct be_queue_info
*q
,
154 u16 len
, u16 entry_size
)
156 struct be_dma_mem
*mem
= &q
->dma_mem
;
158 memset(q
, 0, sizeof(*q
));
160 q
->entry_size
= entry_size
;
161 mem
->size
= len
* entry_size
;
162 mem
->va
= dma_zalloc_coherent(&adapter
->pdev
->dev
, mem
->size
, &mem
->dma
,
169 static void be_reg_intr_set(struct be_adapter
*adapter
, bool enable
)
173 pci_read_config_dword(adapter
->pdev
, PCICFG_MEMBAR_CTRL_INT_CTRL_OFFSET
,
175 enabled
= reg
& MEMBAR_CTRL_INT_CTRL_HOSTINTR_MASK
;
177 if (!enabled
&& enable
)
178 reg
|= MEMBAR_CTRL_INT_CTRL_HOSTINTR_MASK
;
179 else if (enabled
&& !enable
)
180 reg
&= ~MEMBAR_CTRL_INT_CTRL_HOSTINTR_MASK
;
184 pci_write_config_dword(adapter
->pdev
,
185 PCICFG_MEMBAR_CTRL_INT_CTRL_OFFSET
, reg
);
188 static void be_intr_set(struct be_adapter
*adapter
, bool enable
)
192 /* On lancer interrupts can't be controlled via this register */
193 if (lancer_chip(adapter
))
196 if (be_check_error(adapter
, BE_ERROR_EEH
))
199 status
= be_cmd_intr_set(adapter
, enable
);
201 be_reg_intr_set(adapter
, enable
);
204 static void be_rxq_notify(struct be_adapter
*adapter
, u16 qid
, u16 posted
)
208 if (be_check_error(adapter
, BE_ERROR_HW
))
211 val
|= qid
& DB_RQ_RING_ID_MASK
;
212 val
|= posted
<< DB_RQ_NUM_POSTED_SHIFT
;
215 iowrite32(val
, adapter
->db
+ DB_RQ_OFFSET
);
218 static void be_txq_notify(struct be_adapter
*adapter
, struct be_tx_obj
*txo
,
223 if (be_check_error(adapter
, BE_ERROR_HW
))
226 val
|= txo
->q
.id
& DB_TXULP_RING_ID_MASK
;
227 val
|= (posted
& DB_TXULP_NUM_POSTED_MASK
) << DB_TXULP_NUM_POSTED_SHIFT
;
230 iowrite32(val
, adapter
->db
+ txo
->db_offset
);
233 static void be_eq_notify(struct be_adapter
*adapter
, u16 qid
,
234 bool arm
, bool clear_int
, u16 num_popped
,
235 u32 eq_delay_mult_enc
)
239 val
|= qid
& DB_EQ_RING_ID_MASK
;
240 val
|= ((qid
& DB_EQ_RING_ID_EXT_MASK
) << DB_EQ_RING_ID_EXT_MASK_SHIFT
);
242 if (be_check_error(adapter
, BE_ERROR_HW
))
246 val
|= 1 << DB_EQ_REARM_SHIFT
;
248 val
|= 1 << DB_EQ_CLR_SHIFT
;
249 val
|= 1 << DB_EQ_EVNT_SHIFT
;
250 val
|= num_popped
<< DB_EQ_NUM_POPPED_SHIFT
;
251 val
|= eq_delay_mult_enc
<< DB_EQ_R2I_DLY_SHIFT
;
252 iowrite32(val
, adapter
->db
+ DB_EQ_OFFSET
);
255 void be_cq_notify(struct be_adapter
*adapter
, u16 qid
, bool arm
, u16 num_popped
)
259 val
|= qid
& DB_CQ_RING_ID_MASK
;
260 val
|= ((qid
& DB_CQ_RING_ID_EXT_MASK
) <<
261 DB_CQ_RING_ID_EXT_MASK_SHIFT
);
263 if (be_check_error(adapter
, BE_ERROR_HW
))
267 val
|= 1 << DB_CQ_REARM_SHIFT
;
268 val
|= num_popped
<< DB_CQ_NUM_POPPED_SHIFT
;
269 iowrite32(val
, adapter
->db
+ DB_CQ_OFFSET
);
272 static int be_dev_mac_add(struct be_adapter
*adapter
, u8
*mac
)
276 /* Check if mac has already been added as part of uc-list */
277 for (i
= 0; i
< adapter
->uc_macs
; i
++) {
278 if (ether_addr_equal((u8
*)&adapter
->uc_list
[i
* ETH_ALEN
],
280 /* mac already added, skip addition */
281 adapter
->pmac_id
[0] = adapter
->pmac_id
[i
+ 1];
286 return be_cmd_pmac_add(adapter
, mac
, adapter
->if_handle
,
287 &adapter
->pmac_id
[0], 0);
290 static void be_dev_mac_del(struct be_adapter
*adapter
, int pmac_id
)
294 /* Skip deletion if the programmed mac is
295 * being used in uc-list
297 for (i
= 0; i
< adapter
->uc_macs
; i
++) {
298 if (adapter
->pmac_id
[i
+ 1] == pmac_id
)
301 be_cmd_pmac_del(adapter
, adapter
->if_handle
, pmac_id
, 0);
304 static int be_mac_addr_set(struct net_device
*netdev
, void *p
)
306 struct be_adapter
*adapter
= netdev_priv(netdev
);
307 struct device
*dev
= &adapter
->pdev
->dev
;
308 struct sockaddr
*addr
= p
;
311 u32 old_pmac_id
= adapter
->pmac_id
[0];
313 if (!is_valid_ether_addr(addr
->sa_data
))
314 return -EADDRNOTAVAIL
;
316 /* Proceed further only if, User provided MAC is different
319 if (ether_addr_equal(addr
->sa_data
, adapter
->dev_mac
))
322 /* if device is not running, copy MAC to netdev->dev_addr */
323 if (!netif_running(netdev
))
326 /* The PMAC_ADD cmd may fail if the VF doesn't have FILTMGMT
327 * privilege or if PF did not provision the new MAC address.
328 * On BE3, this cmd will always fail if the VF doesn't have the
329 * FILTMGMT privilege. This failure is OK, only if the PF programmed
330 * the MAC for the VF.
332 mutex_lock(&adapter
->rx_filter_lock
);
333 status
= be_dev_mac_add(adapter
, (u8
*)addr
->sa_data
);
336 /* Delete the old programmed MAC. This call may fail if the
337 * old MAC was already deleted by the PF driver.
339 if (adapter
->pmac_id
[0] != old_pmac_id
)
340 be_dev_mac_del(adapter
, old_pmac_id
);
343 mutex_unlock(&adapter
->rx_filter_lock
);
344 /* Decide if the new MAC is successfully activated only after
347 status
= be_cmd_get_active_mac(adapter
, adapter
->pmac_id
[0], mac
,
348 adapter
->if_handle
, true, 0);
352 /* The MAC change did not happen, either due to lack of privilege
353 * or PF didn't pre-provision.
355 if (!ether_addr_equal(addr
->sa_data
, mac
)) {
360 ether_addr_copy(adapter
->dev_mac
, addr
->sa_data
);
361 ether_addr_copy(netdev
->dev_addr
, addr
->sa_data
);
362 dev_info(dev
, "MAC address changed to %pM\n", addr
->sa_data
);
365 dev_warn(dev
, "MAC address change to %pM failed\n", addr
->sa_data
);
369 /* BE2 supports only v0 cmd */
370 static void *hw_stats_from_cmd(struct be_adapter
*adapter
)
372 if (BE2_chip(adapter
)) {
373 struct be_cmd_resp_get_stats_v0
*cmd
= adapter
->stats_cmd
.va
;
375 return &cmd
->hw_stats
;
376 } else if (BE3_chip(adapter
)) {
377 struct be_cmd_resp_get_stats_v1
*cmd
= adapter
->stats_cmd
.va
;
379 return &cmd
->hw_stats
;
381 struct be_cmd_resp_get_stats_v2
*cmd
= adapter
->stats_cmd
.va
;
383 return &cmd
->hw_stats
;
387 /* BE2 supports only v0 cmd */
388 static void *be_erx_stats_from_cmd(struct be_adapter
*adapter
)
390 if (BE2_chip(adapter
)) {
391 struct be_hw_stats_v0
*hw_stats
= hw_stats_from_cmd(adapter
);
393 return &hw_stats
->erx
;
394 } else if (BE3_chip(adapter
)) {
395 struct be_hw_stats_v1
*hw_stats
= hw_stats_from_cmd(adapter
);
397 return &hw_stats
->erx
;
399 struct be_hw_stats_v2
*hw_stats
= hw_stats_from_cmd(adapter
);
401 return &hw_stats
->erx
;
405 static void populate_be_v0_stats(struct be_adapter
*adapter
)
407 struct be_hw_stats_v0
*hw_stats
= hw_stats_from_cmd(adapter
);
408 struct be_pmem_stats
*pmem_sts
= &hw_stats
->pmem
;
409 struct be_rxf_stats_v0
*rxf_stats
= &hw_stats
->rxf
;
410 struct be_port_rxf_stats_v0
*port_stats
=
411 &rxf_stats
->port
[adapter
->port_num
];
412 struct be_drv_stats
*drvs
= &adapter
->drv_stats
;
414 be_dws_le_to_cpu(hw_stats
, sizeof(*hw_stats
));
415 drvs
->rx_pause_frames
= port_stats
->rx_pause_frames
;
416 drvs
->rx_crc_errors
= port_stats
->rx_crc_errors
;
417 drvs
->rx_control_frames
= port_stats
->rx_control_frames
;
418 drvs
->rx_in_range_errors
= port_stats
->rx_in_range_errors
;
419 drvs
->rx_frame_too_long
= port_stats
->rx_frame_too_long
;
420 drvs
->rx_dropped_runt
= port_stats
->rx_dropped_runt
;
421 drvs
->rx_ip_checksum_errs
= port_stats
->rx_ip_checksum_errs
;
422 drvs
->rx_tcp_checksum_errs
= port_stats
->rx_tcp_checksum_errs
;
423 drvs
->rx_udp_checksum_errs
= port_stats
->rx_udp_checksum_errs
;
424 drvs
->rxpp_fifo_overflow_drop
= port_stats
->rx_fifo_overflow
;
425 drvs
->rx_dropped_tcp_length
= port_stats
->rx_dropped_tcp_length
;
426 drvs
->rx_dropped_too_small
= port_stats
->rx_dropped_too_small
;
427 drvs
->rx_dropped_too_short
= port_stats
->rx_dropped_too_short
;
428 drvs
->rx_out_range_errors
= port_stats
->rx_out_range_errors
;
429 drvs
->rx_input_fifo_overflow_drop
= port_stats
->rx_input_fifo_overflow
;
430 drvs
->rx_dropped_header_too_small
=
431 port_stats
->rx_dropped_header_too_small
;
432 drvs
->rx_address_filtered
=
433 port_stats
->rx_address_filtered
+
434 port_stats
->rx_vlan_filtered
;
435 drvs
->rx_alignment_symbol_errors
=
436 port_stats
->rx_alignment_symbol_errors
;
438 drvs
->tx_pauseframes
= port_stats
->tx_pauseframes
;
439 drvs
->tx_controlframes
= port_stats
->tx_controlframes
;
441 if (adapter
->port_num
)
442 drvs
->jabber_events
= rxf_stats
->port1_jabber_events
;
444 drvs
->jabber_events
= rxf_stats
->port0_jabber_events
;
445 drvs
->rx_drops_no_pbuf
= rxf_stats
->rx_drops_no_pbuf
;
446 drvs
->rx_drops_no_erx_descr
= rxf_stats
->rx_drops_no_erx_descr
;
447 drvs
->forwarded_packets
= rxf_stats
->forwarded_packets
;
448 drvs
->rx_drops_mtu
= rxf_stats
->rx_drops_mtu
;
449 drvs
->rx_drops_no_tpre_descr
= rxf_stats
->rx_drops_no_tpre_descr
;
450 drvs
->rx_drops_too_many_frags
= rxf_stats
->rx_drops_too_many_frags
;
451 adapter
->drv_stats
.eth_red_drops
= pmem_sts
->eth_red_drops
;
454 static void populate_be_v1_stats(struct be_adapter
*adapter
)
456 struct be_hw_stats_v1
*hw_stats
= hw_stats_from_cmd(adapter
);
457 struct be_pmem_stats
*pmem_sts
= &hw_stats
->pmem
;
458 struct be_rxf_stats_v1
*rxf_stats
= &hw_stats
->rxf
;
459 struct be_port_rxf_stats_v1
*port_stats
=
460 &rxf_stats
->port
[adapter
->port_num
];
461 struct be_drv_stats
*drvs
= &adapter
->drv_stats
;
463 be_dws_le_to_cpu(hw_stats
, sizeof(*hw_stats
));
464 drvs
->pmem_fifo_overflow_drop
= port_stats
->pmem_fifo_overflow_drop
;
465 drvs
->rx_priority_pause_frames
= port_stats
->rx_priority_pause_frames
;
466 drvs
->rx_pause_frames
= port_stats
->rx_pause_frames
;
467 drvs
->rx_crc_errors
= port_stats
->rx_crc_errors
;
468 drvs
->rx_control_frames
= port_stats
->rx_control_frames
;
469 drvs
->rx_in_range_errors
= port_stats
->rx_in_range_errors
;
470 drvs
->rx_frame_too_long
= port_stats
->rx_frame_too_long
;
471 drvs
->rx_dropped_runt
= port_stats
->rx_dropped_runt
;
472 drvs
->rx_ip_checksum_errs
= port_stats
->rx_ip_checksum_errs
;
473 drvs
->rx_tcp_checksum_errs
= port_stats
->rx_tcp_checksum_errs
;
474 drvs
->rx_udp_checksum_errs
= port_stats
->rx_udp_checksum_errs
;
475 drvs
->rx_dropped_tcp_length
= port_stats
->rx_dropped_tcp_length
;
476 drvs
->rx_dropped_too_small
= port_stats
->rx_dropped_too_small
;
477 drvs
->rx_dropped_too_short
= port_stats
->rx_dropped_too_short
;
478 drvs
->rx_out_range_errors
= port_stats
->rx_out_range_errors
;
479 drvs
->rx_dropped_header_too_small
=
480 port_stats
->rx_dropped_header_too_small
;
481 drvs
->rx_input_fifo_overflow_drop
=
482 port_stats
->rx_input_fifo_overflow_drop
;
483 drvs
->rx_address_filtered
= port_stats
->rx_address_filtered
;
484 drvs
->rx_alignment_symbol_errors
=
485 port_stats
->rx_alignment_symbol_errors
;
486 drvs
->rxpp_fifo_overflow_drop
= port_stats
->rxpp_fifo_overflow_drop
;
487 drvs
->tx_pauseframes
= port_stats
->tx_pauseframes
;
488 drvs
->tx_controlframes
= port_stats
->tx_controlframes
;
489 drvs
->tx_priority_pauseframes
= port_stats
->tx_priority_pauseframes
;
490 drvs
->jabber_events
= port_stats
->jabber_events
;
491 drvs
->rx_drops_no_pbuf
= rxf_stats
->rx_drops_no_pbuf
;
492 drvs
->rx_drops_no_erx_descr
= rxf_stats
->rx_drops_no_erx_descr
;
493 drvs
->forwarded_packets
= rxf_stats
->forwarded_packets
;
494 drvs
->rx_drops_mtu
= rxf_stats
->rx_drops_mtu
;
495 drvs
->rx_drops_no_tpre_descr
= rxf_stats
->rx_drops_no_tpre_descr
;
496 drvs
->rx_drops_too_many_frags
= rxf_stats
->rx_drops_too_many_frags
;
497 adapter
->drv_stats
.eth_red_drops
= pmem_sts
->eth_red_drops
;
500 static void populate_be_v2_stats(struct be_adapter
*adapter
)
502 struct be_hw_stats_v2
*hw_stats
= hw_stats_from_cmd(adapter
);
503 struct be_pmem_stats
*pmem_sts
= &hw_stats
->pmem
;
504 struct be_rxf_stats_v2
*rxf_stats
= &hw_stats
->rxf
;
505 struct be_port_rxf_stats_v2
*port_stats
=
506 &rxf_stats
->port
[adapter
->port_num
];
507 struct be_drv_stats
*drvs
= &adapter
->drv_stats
;
509 be_dws_le_to_cpu(hw_stats
, sizeof(*hw_stats
));
510 drvs
->pmem_fifo_overflow_drop
= port_stats
->pmem_fifo_overflow_drop
;
511 drvs
->rx_priority_pause_frames
= port_stats
->rx_priority_pause_frames
;
512 drvs
->rx_pause_frames
= port_stats
->rx_pause_frames
;
513 drvs
->rx_crc_errors
= port_stats
->rx_crc_errors
;
514 drvs
->rx_control_frames
= port_stats
->rx_control_frames
;
515 drvs
->rx_in_range_errors
= port_stats
->rx_in_range_errors
;
516 drvs
->rx_frame_too_long
= port_stats
->rx_frame_too_long
;
517 drvs
->rx_dropped_runt
= port_stats
->rx_dropped_runt
;
518 drvs
->rx_ip_checksum_errs
= port_stats
->rx_ip_checksum_errs
;
519 drvs
->rx_tcp_checksum_errs
= port_stats
->rx_tcp_checksum_errs
;
520 drvs
->rx_udp_checksum_errs
= port_stats
->rx_udp_checksum_errs
;
521 drvs
->rx_dropped_tcp_length
= port_stats
->rx_dropped_tcp_length
;
522 drvs
->rx_dropped_too_small
= port_stats
->rx_dropped_too_small
;
523 drvs
->rx_dropped_too_short
= port_stats
->rx_dropped_too_short
;
524 drvs
->rx_out_range_errors
= port_stats
->rx_out_range_errors
;
525 drvs
->rx_dropped_header_too_small
=
526 port_stats
->rx_dropped_header_too_small
;
527 drvs
->rx_input_fifo_overflow_drop
=
528 port_stats
->rx_input_fifo_overflow_drop
;
529 drvs
->rx_address_filtered
= port_stats
->rx_address_filtered
;
530 drvs
->rx_alignment_symbol_errors
=
531 port_stats
->rx_alignment_symbol_errors
;
532 drvs
->rxpp_fifo_overflow_drop
= port_stats
->rxpp_fifo_overflow_drop
;
533 drvs
->tx_pauseframes
= port_stats
->tx_pauseframes
;
534 drvs
->tx_controlframes
= port_stats
->tx_controlframes
;
535 drvs
->tx_priority_pauseframes
= port_stats
->tx_priority_pauseframes
;
536 drvs
->jabber_events
= port_stats
->jabber_events
;
537 drvs
->rx_drops_no_pbuf
= rxf_stats
->rx_drops_no_pbuf
;
538 drvs
->rx_drops_no_erx_descr
= rxf_stats
->rx_drops_no_erx_descr
;
539 drvs
->forwarded_packets
= rxf_stats
->forwarded_packets
;
540 drvs
->rx_drops_mtu
= rxf_stats
->rx_drops_mtu
;
541 drvs
->rx_drops_no_tpre_descr
= rxf_stats
->rx_drops_no_tpre_descr
;
542 drvs
->rx_drops_too_many_frags
= rxf_stats
->rx_drops_too_many_frags
;
543 adapter
->drv_stats
.eth_red_drops
= pmem_sts
->eth_red_drops
;
544 if (be_roce_supported(adapter
)) {
545 drvs
->rx_roce_bytes_lsd
= port_stats
->roce_bytes_received_lsd
;
546 drvs
->rx_roce_bytes_msd
= port_stats
->roce_bytes_received_msd
;
547 drvs
->rx_roce_frames
= port_stats
->roce_frames_received
;
548 drvs
->roce_drops_crc
= port_stats
->roce_drops_crc
;
549 drvs
->roce_drops_payload_len
=
550 port_stats
->roce_drops_payload_len
;
554 static void populate_lancer_stats(struct be_adapter
*adapter
)
556 struct be_drv_stats
*drvs
= &adapter
->drv_stats
;
557 struct lancer_pport_stats
*pport_stats
= pport_stats_from_cmd(adapter
);
559 be_dws_le_to_cpu(pport_stats
, sizeof(*pport_stats
));
560 drvs
->rx_pause_frames
= pport_stats
->rx_pause_frames_lo
;
561 drvs
->rx_crc_errors
= pport_stats
->rx_crc_errors_lo
;
562 drvs
->rx_control_frames
= pport_stats
->rx_control_frames_lo
;
563 drvs
->rx_in_range_errors
= pport_stats
->rx_in_range_errors
;
564 drvs
->rx_frame_too_long
= pport_stats
->rx_frames_too_long_lo
;
565 drvs
->rx_dropped_runt
= pport_stats
->rx_dropped_runt
;
566 drvs
->rx_ip_checksum_errs
= pport_stats
->rx_ip_checksum_errors
;
567 drvs
->rx_tcp_checksum_errs
= pport_stats
->rx_tcp_checksum_errors
;
568 drvs
->rx_udp_checksum_errs
= pport_stats
->rx_udp_checksum_errors
;
569 drvs
->rx_dropped_tcp_length
=
570 pport_stats
->rx_dropped_invalid_tcp_length
;
571 drvs
->rx_dropped_too_small
= pport_stats
->rx_dropped_too_small
;
572 drvs
->rx_dropped_too_short
= pport_stats
->rx_dropped_too_short
;
573 drvs
->rx_out_range_errors
= pport_stats
->rx_out_of_range_errors
;
574 drvs
->rx_dropped_header_too_small
=
575 pport_stats
->rx_dropped_header_too_small
;
576 drvs
->rx_input_fifo_overflow_drop
= pport_stats
->rx_fifo_overflow
;
577 drvs
->rx_address_filtered
=
578 pport_stats
->rx_address_filtered
+
579 pport_stats
->rx_vlan_filtered
;
580 drvs
->rx_alignment_symbol_errors
= pport_stats
->rx_symbol_errors_lo
;
581 drvs
->rxpp_fifo_overflow_drop
= pport_stats
->rx_fifo_overflow
;
582 drvs
->tx_pauseframes
= pport_stats
->tx_pause_frames_lo
;
583 drvs
->tx_controlframes
= pport_stats
->tx_control_frames_lo
;
584 drvs
->jabber_events
= pport_stats
->rx_jabbers
;
585 drvs
->forwarded_packets
= pport_stats
->num_forwards_lo
;
586 drvs
->rx_drops_mtu
= pport_stats
->rx_drops_mtu_lo
;
587 drvs
->rx_drops_too_many_frags
=
588 pport_stats
->rx_drops_too_many_frags_lo
;
591 static void accumulate_16bit_val(u32
*acc
, u16 val
)
593 #define lo(x) (x & 0xFFFF)
594 #define hi(x) (x & 0xFFFF0000)
595 bool wrapped
= val
< lo(*acc
);
596 u32 newacc
= hi(*acc
) + val
;
600 ACCESS_ONCE(*acc
) = newacc
;
603 static void populate_erx_stats(struct be_adapter
*adapter
,
604 struct be_rx_obj
*rxo
, u32 erx_stat
)
606 if (!BEx_chip(adapter
))
607 rx_stats(rxo
)->rx_drops_no_frags
= erx_stat
;
609 /* below erx HW counter can actually wrap around after
610 * 65535. Driver accumulates a 32-bit value
612 accumulate_16bit_val(&rx_stats(rxo
)->rx_drops_no_frags
,
616 void be_parse_stats(struct be_adapter
*adapter
)
618 struct be_erx_stats_v2
*erx
= be_erx_stats_from_cmd(adapter
);
619 struct be_rx_obj
*rxo
;
623 if (lancer_chip(adapter
)) {
624 populate_lancer_stats(adapter
);
626 if (BE2_chip(adapter
))
627 populate_be_v0_stats(adapter
);
628 else if (BE3_chip(adapter
))
630 populate_be_v1_stats(adapter
);
632 populate_be_v2_stats(adapter
);
634 /* erx_v2 is longer than v0, v1. use v2 for v0, v1 access */
635 for_all_rx_queues(adapter
, rxo
, i
) {
636 erx_stat
= erx
->rx_drops_no_fragments
[rxo
->q
.id
];
637 populate_erx_stats(adapter
, rxo
, erx_stat
);
642 static struct rtnl_link_stats64
*be_get_stats64(struct net_device
*netdev
,
643 struct rtnl_link_stats64
*stats
)
645 struct be_adapter
*adapter
= netdev_priv(netdev
);
646 struct be_drv_stats
*drvs
= &adapter
->drv_stats
;
647 struct be_rx_obj
*rxo
;
648 struct be_tx_obj
*txo
;
653 for_all_rx_queues(adapter
, rxo
, i
) {
654 const struct be_rx_stats
*rx_stats
= rx_stats(rxo
);
657 start
= u64_stats_fetch_begin_irq(&rx_stats
->sync
);
658 pkts
= rx_stats(rxo
)->rx_pkts
;
659 bytes
= rx_stats(rxo
)->rx_bytes
;
660 } while (u64_stats_fetch_retry_irq(&rx_stats
->sync
, start
));
661 stats
->rx_packets
+= pkts
;
662 stats
->rx_bytes
+= bytes
;
663 stats
->multicast
+= rx_stats(rxo
)->rx_mcast_pkts
;
664 stats
->rx_dropped
+= rx_stats(rxo
)->rx_drops_no_skbs
+
665 rx_stats(rxo
)->rx_drops_no_frags
;
668 for_all_tx_queues(adapter
, txo
, i
) {
669 const struct be_tx_stats
*tx_stats
= tx_stats(txo
);
672 start
= u64_stats_fetch_begin_irq(&tx_stats
->sync
);
673 pkts
= tx_stats(txo
)->tx_pkts
;
674 bytes
= tx_stats(txo
)->tx_bytes
;
675 } while (u64_stats_fetch_retry_irq(&tx_stats
->sync
, start
));
676 stats
->tx_packets
+= pkts
;
677 stats
->tx_bytes
+= bytes
;
680 /* bad pkts received */
681 stats
->rx_errors
= drvs
->rx_crc_errors
+
682 drvs
->rx_alignment_symbol_errors
+
683 drvs
->rx_in_range_errors
+
684 drvs
->rx_out_range_errors
+
685 drvs
->rx_frame_too_long
+
686 drvs
->rx_dropped_too_small
+
687 drvs
->rx_dropped_too_short
+
688 drvs
->rx_dropped_header_too_small
+
689 drvs
->rx_dropped_tcp_length
+
690 drvs
->rx_dropped_runt
;
692 /* detailed rx errors */
693 stats
->rx_length_errors
= drvs
->rx_in_range_errors
+
694 drvs
->rx_out_range_errors
+
695 drvs
->rx_frame_too_long
;
697 stats
->rx_crc_errors
= drvs
->rx_crc_errors
;
699 /* frame alignment errors */
700 stats
->rx_frame_errors
= drvs
->rx_alignment_symbol_errors
;
702 /* receiver fifo overrun */
703 /* drops_no_pbuf is no per i/f, it's per BE card */
704 stats
->rx_fifo_errors
= drvs
->rxpp_fifo_overflow_drop
+
705 drvs
->rx_input_fifo_overflow_drop
+
706 drvs
->rx_drops_no_pbuf
;
710 void be_link_status_update(struct be_adapter
*adapter
, u8 link_status
)
712 struct net_device
*netdev
= adapter
->netdev
;
714 if (!(adapter
->flags
& BE_FLAGS_LINK_STATUS_INIT
)) {
715 netif_carrier_off(netdev
);
716 adapter
->flags
|= BE_FLAGS_LINK_STATUS_INIT
;
720 netif_carrier_on(netdev
);
722 netif_carrier_off(netdev
);
724 netdev_info(netdev
, "Link is %s\n", link_status
? "Up" : "Down");
727 static void be_tx_stats_update(struct be_tx_obj
*txo
, struct sk_buff
*skb
)
729 struct be_tx_stats
*stats
= tx_stats(txo
);
730 u64 tx_pkts
= skb_shinfo(skb
)->gso_segs
? : 1;
732 u64_stats_update_begin(&stats
->sync
);
734 stats
->tx_bytes
+= skb
->len
;
735 stats
->tx_pkts
+= tx_pkts
;
736 if (skb
->encapsulation
&& skb
->ip_summed
== CHECKSUM_PARTIAL
)
737 stats
->tx_vxlan_offload_pkts
+= tx_pkts
;
738 u64_stats_update_end(&stats
->sync
);
741 /* Returns number of WRBs needed for the skb */
742 static u32
skb_wrb_cnt(struct sk_buff
*skb
)
744 /* +1 for the header wrb */
745 return 1 + (skb_headlen(skb
) ? 1 : 0) + skb_shinfo(skb
)->nr_frags
;
748 static inline void wrb_fill(struct be_eth_wrb
*wrb
, u64 addr
, int len
)
750 wrb
->frag_pa_hi
= cpu_to_le32(upper_32_bits(addr
));
751 wrb
->frag_pa_lo
= cpu_to_le32(lower_32_bits(addr
));
752 wrb
->frag_len
= cpu_to_le32(len
& ETH_WRB_FRAG_LEN_MASK
);
756 /* A dummy wrb is just all zeros. Using a separate routine for dummy-wrb
757 * to avoid the swap and shift/mask operations in wrb_fill().
759 static inline void wrb_fill_dummy(struct be_eth_wrb
*wrb
)
767 static inline u16
be_get_tx_vlan_tag(struct be_adapter
*adapter
,
773 vlan_tag
= skb_vlan_tag_get(skb
);
774 vlan_prio
= (vlan_tag
& VLAN_PRIO_MASK
) >> VLAN_PRIO_SHIFT
;
775 /* If vlan priority provided by OS is NOT in available bmap */
776 if (!(adapter
->vlan_prio_bmap
& (1 << vlan_prio
)))
777 vlan_tag
= (vlan_tag
& ~VLAN_PRIO_MASK
) |
778 adapter
->recommended_prio_bits
;
783 /* Used only for IP tunnel packets */
784 static u16
skb_inner_ip_proto(struct sk_buff
*skb
)
786 return (inner_ip_hdr(skb
)->version
== 4) ?
787 inner_ip_hdr(skb
)->protocol
: inner_ipv6_hdr(skb
)->nexthdr
;
790 static u16
skb_ip_proto(struct sk_buff
*skb
)
792 return (ip_hdr(skb
)->version
== 4) ?
793 ip_hdr(skb
)->protocol
: ipv6_hdr(skb
)->nexthdr
;
796 static inline bool be_is_txq_full(struct be_tx_obj
*txo
)
798 return atomic_read(&txo
->q
.used
) + BE_MAX_TX_FRAG_COUNT
>= txo
->q
.len
;
801 static inline bool be_can_txq_wake(struct be_tx_obj
*txo
)
803 return atomic_read(&txo
->q
.used
) < txo
->q
.len
/ 2;
806 static inline bool be_is_tx_compl_pending(struct be_tx_obj
*txo
)
808 return atomic_read(&txo
->q
.used
) > txo
->pend_wrb_cnt
;
811 static void be_get_wrb_params_from_skb(struct be_adapter
*adapter
,
813 struct be_wrb_params
*wrb_params
)
817 if (skb_is_gso(skb
)) {
818 BE_WRB_F_SET(wrb_params
->features
, LSO
, 1);
819 wrb_params
->lso_mss
= skb_shinfo(skb
)->gso_size
;
820 if (skb_is_gso_v6(skb
) && !lancer_chip(adapter
))
821 BE_WRB_F_SET(wrb_params
->features
, LSO6
, 1);
822 } else if (skb
->ip_summed
== CHECKSUM_PARTIAL
) {
823 if (skb
->encapsulation
) {
824 BE_WRB_F_SET(wrb_params
->features
, IPCS
, 1);
825 proto
= skb_inner_ip_proto(skb
);
827 proto
= skb_ip_proto(skb
);
829 if (proto
== IPPROTO_TCP
)
830 BE_WRB_F_SET(wrb_params
->features
, TCPCS
, 1);
831 else if (proto
== IPPROTO_UDP
)
832 BE_WRB_F_SET(wrb_params
->features
, UDPCS
, 1);
835 if (skb_vlan_tag_present(skb
)) {
836 BE_WRB_F_SET(wrb_params
->features
, VLAN
, 1);
837 wrb_params
->vlan_tag
= be_get_tx_vlan_tag(adapter
, skb
);
840 BE_WRB_F_SET(wrb_params
->features
, CRC
, 1);
843 static void wrb_fill_hdr(struct be_adapter
*adapter
,
844 struct be_eth_hdr_wrb
*hdr
,
845 struct be_wrb_params
*wrb_params
,
848 memset(hdr
, 0, sizeof(*hdr
));
850 SET_TX_WRB_HDR_BITS(crc
, hdr
,
851 BE_WRB_F_GET(wrb_params
->features
, CRC
));
852 SET_TX_WRB_HDR_BITS(ipcs
, hdr
,
853 BE_WRB_F_GET(wrb_params
->features
, IPCS
));
854 SET_TX_WRB_HDR_BITS(tcpcs
, hdr
,
855 BE_WRB_F_GET(wrb_params
->features
, TCPCS
));
856 SET_TX_WRB_HDR_BITS(udpcs
, hdr
,
857 BE_WRB_F_GET(wrb_params
->features
, UDPCS
));
859 SET_TX_WRB_HDR_BITS(lso
, hdr
,
860 BE_WRB_F_GET(wrb_params
->features
, LSO
));
861 SET_TX_WRB_HDR_BITS(lso6
, hdr
,
862 BE_WRB_F_GET(wrb_params
->features
, LSO6
));
863 SET_TX_WRB_HDR_BITS(lso_mss
, hdr
, wrb_params
->lso_mss
);
865 /* Hack to skip HW VLAN tagging needs evt = 1, compl = 0. When this
866 * hack is not needed, the evt bit is set while ringing DB.
868 SET_TX_WRB_HDR_BITS(event
, hdr
,
869 BE_WRB_F_GET(wrb_params
->features
, VLAN_SKIP_HW
));
870 SET_TX_WRB_HDR_BITS(vlan
, hdr
,
871 BE_WRB_F_GET(wrb_params
->features
, VLAN
));
872 SET_TX_WRB_HDR_BITS(vlan_tag
, hdr
, wrb_params
->vlan_tag
);
874 SET_TX_WRB_HDR_BITS(num_wrb
, hdr
, skb_wrb_cnt(skb
));
875 SET_TX_WRB_HDR_BITS(len
, hdr
, skb
->len
);
876 SET_TX_WRB_HDR_BITS(mgmt
, hdr
,
877 BE_WRB_F_GET(wrb_params
->features
, OS2BMC
));
880 static void unmap_tx_frag(struct device
*dev
, struct be_eth_wrb
*wrb
,
884 u32 frag_len
= le32_to_cpu(wrb
->frag_len
);
887 dma
= (u64
)le32_to_cpu(wrb
->frag_pa_hi
) << 32 |
888 (u64
)le32_to_cpu(wrb
->frag_pa_lo
);
891 dma_unmap_single(dev
, dma
, frag_len
, DMA_TO_DEVICE
);
893 dma_unmap_page(dev
, dma
, frag_len
, DMA_TO_DEVICE
);
897 /* Grab a WRB header for xmit */
898 static u32
be_tx_get_wrb_hdr(struct be_tx_obj
*txo
)
900 u32 head
= txo
->q
.head
;
902 queue_head_inc(&txo
->q
);
906 /* Set up the WRB header for xmit */
907 static void be_tx_setup_wrb_hdr(struct be_adapter
*adapter
,
908 struct be_tx_obj
*txo
,
909 struct be_wrb_params
*wrb_params
,
910 struct sk_buff
*skb
, u16 head
)
912 u32 num_frags
= skb_wrb_cnt(skb
);
913 struct be_queue_info
*txq
= &txo
->q
;
914 struct be_eth_hdr_wrb
*hdr
= queue_index_node(txq
, head
);
916 wrb_fill_hdr(adapter
, hdr
, wrb_params
, skb
);
917 be_dws_cpu_to_le(hdr
, sizeof(*hdr
));
919 BUG_ON(txo
->sent_skb_list
[head
]);
920 txo
->sent_skb_list
[head
] = skb
;
921 txo
->last_req_hdr
= head
;
922 atomic_add(num_frags
, &txq
->used
);
923 txo
->last_req_wrb_cnt
= num_frags
;
924 txo
->pend_wrb_cnt
+= num_frags
;
927 /* Setup a WRB fragment (buffer descriptor) for xmit */
928 static void be_tx_setup_wrb_frag(struct be_tx_obj
*txo
, dma_addr_t busaddr
,
931 struct be_eth_wrb
*wrb
;
932 struct be_queue_info
*txq
= &txo
->q
;
934 wrb
= queue_head_node(txq
);
935 wrb_fill(wrb
, busaddr
, len
);
939 /* Bring the queue back to the state it was in before be_xmit_enqueue() routine
940 * was invoked. The producer index is restored to the previous packet and the
941 * WRBs of the current packet are unmapped. Invoked to handle tx setup errors.
943 static void be_xmit_restore(struct be_adapter
*adapter
,
944 struct be_tx_obj
*txo
, u32 head
, bool map_single
,
948 struct be_eth_wrb
*wrb
;
949 struct be_queue_info
*txq
= &txo
->q
;
951 dev
= &adapter
->pdev
->dev
;
954 /* skip the first wrb (hdr); it's not mapped */
957 wrb
= queue_head_node(txq
);
958 unmap_tx_frag(dev
, wrb
, map_single
);
960 copied
-= le32_to_cpu(wrb
->frag_len
);
967 /* Enqueue the given packet for transmit. This routine allocates WRBs for the
968 * packet, dma maps the packet buffers and sets up the WRBs. Returns the number
969 * of WRBs used up by the packet.
971 static u32
be_xmit_enqueue(struct be_adapter
*adapter
, struct be_tx_obj
*txo
,
973 struct be_wrb_params
*wrb_params
)
975 u32 i
, copied
= 0, wrb_cnt
= skb_wrb_cnt(skb
);
976 struct device
*dev
= &adapter
->pdev
->dev
;
977 struct be_queue_info
*txq
= &txo
->q
;
978 bool map_single
= false;
979 u32 head
= txq
->head
;
983 head
= be_tx_get_wrb_hdr(txo
);
985 if (skb
->len
> skb
->data_len
) {
986 len
= skb_headlen(skb
);
988 busaddr
= dma_map_single(dev
, skb
->data
, len
, DMA_TO_DEVICE
);
989 if (dma_mapping_error(dev
, busaddr
))
992 be_tx_setup_wrb_frag(txo
, busaddr
, len
);
996 for (i
= 0; i
< skb_shinfo(skb
)->nr_frags
; i
++) {
997 const struct skb_frag_struct
*frag
= &skb_shinfo(skb
)->frags
[i
];
998 len
= skb_frag_size(frag
);
1000 busaddr
= skb_frag_dma_map(dev
, frag
, 0, len
, DMA_TO_DEVICE
);
1001 if (dma_mapping_error(dev
, busaddr
))
1003 be_tx_setup_wrb_frag(txo
, busaddr
, len
);
1007 be_tx_setup_wrb_hdr(adapter
, txo
, wrb_params
, skb
, head
);
1009 be_tx_stats_update(txo
, skb
);
1013 adapter
->drv_stats
.dma_map_errors
++;
1014 be_xmit_restore(adapter
, txo
, head
, map_single
, copied
);
1018 static inline int qnq_async_evt_rcvd(struct be_adapter
*adapter
)
1020 return adapter
->flags
& BE_FLAGS_QNQ_ASYNC_EVT_RCVD
;
1023 static struct sk_buff
*be_insert_vlan_in_pkt(struct be_adapter
*adapter
,
1024 struct sk_buff
*skb
,
1025 struct be_wrb_params
1030 skb
= skb_share_check(skb
, GFP_ATOMIC
);
1034 if (skb_vlan_tag_present(skb
))
1035 vlan_tag
= be_get_tx_vlan_tag(adapter
, skb
);
1037 if (qnq_async_evt_rcvd(adapter
) && adapter
->pvid
) {
1039 vlan_tag
= adapter
->pvid
;
1040 /* f/w workaround to set skip_hw_vlan = 1, informs the F/W to
1041 * skip VLAN insertion
1043 BE_WRB_F_SET(wrb_params
->features
, VLAN_SKIP_HW
, 1);
1047 skb
= vlan_insert_tag_set_proto(skb
, htons(ETH_P_8021Q
),
1054 /* Insert the outer VLAN, if any */
1055 if (adapter
->qnq_vid
) {
1056 vlan_tag
= adapter
->qnq_vid
;
1057 skb
= vlan_insert_tag_set_proto(skb
, htons(ETH_P_8021Q
),
1061 BE_WRB_F_SET(wrb_params
->features
, VLAN_SKIP_HW
, 1);
1067 static bool be_ipv6_exthdr_check(struct sk_buff
*skb
)
1069 struct ethhdr
*eh
= (struct ethhdr
*)skb
->data
;
1070 u16 offset
= ETH_HLEN
;
1072 if (eh
->h_proto
== htons(ETH_P_IPV6
)) {
1073 struct ipv6hdr
*ip6h
= (struct ipv6hdr
*)(skb
->data
+ offset
);
1075 offset
+= sizeof(struct ipv6hdr
);
1076 if (ip6h
->nexthdr
!= NEXTHDR_TCP
&&
1077 ip6h
->nexthdr
!= NEXTHDR_UDP
) {
1078 struct ipv6_opt_hdr
*ehdr
=
1079 (struct ipv6_opt_hdr
*)(skb
->data
+ offset
);
1081 /* offending pkt: 2nd byte following IPv6 hdr is 0xff */
1082 if (ehdr
->hdrlen
== 0xff)
1089 static int be_vlan_tag_tx_chk(struct be_adapter
*adapter
, struct sk_buff
*skb
)
1091 return skb_vlan_tag_present(skb
) || adapter
->pvid
|| adapter
->qnq_vid
;
1094 static int be_ipv6_tx_stall_chk(struct be_adapter
*adapter
, struct sk_buff
*skb
)
1096 return BE3_chip(adapter
) && be_ipv6_exthdr_check(skb
);
1099 static struct sk_buff
*be_lancer_xmit_workarounds(struct be_adapter
*adapter
,
1100 struct sk_buff
*skb
,
1101 struct be_wrb_params
1104 struct vlan_ethhdr
*veh
= (struct vlan_ethhdr
*)skb
->data
;
1105 unsigned int eth_hdr_len
;
1108 /* For padded packets, BE HW modifies tot_len field in IP header
1109 * incorrecly when VLAN tag is inserted by HW.
1110 * For padded packets, Lancer computes incorrect checksum.
1112 eth_hdr_len
= ntohs(skb
->protocol
) == ETH_P_8021Q
?
1113 VLAN_ETH_HLEN
: ETH_HLEN
;
1114 if (skb
->len
<= 60 &&
1115 (lancer_chip(adapter
) || skb_vlan_tag_present(skb
)) &&
1117 ip
= (struct iphdr
*)ip_hdr(skb
);
1118 pskb_trim(skb
, eth_hdr_len
+ ntohs(ip
->tot_len
));
1121 /* If vlan tag is already inlined in the packet, skip HW VLAN
1122 * tagging in pvid-tagging mode
1124 if (be_pvid_tagging_enabled(adapter
) &&
1125 veh
->h_vlan_proto
== htons(ETH_P_8021Q
))
1126 BE_WRB_F_SET(wrb_params
->features
, VLAN_SKIP_HW
, 1);
1128 /* HW has a bug wherein it will calculate CSUM for VLAN
1129 * pkts even though it is disabled.
1130 * Manually insert VLAN in pkt.
1132 if (skb
->ip_summed
!= CHECKSUM_PARTIAL
&&
1133 skb_vlan_tag_present(skb
)) {
1134 skb
= be_insert_vlan_in_pkt(adapter
, skb
, wrb_params
);
1139 /* HW may lockup when VLAN HW tagging is requested on
1140 * certain ipv6 packets. Drop such pkts if the HW workaround to
1141 * skip HW tagging is not enabled by FW.
1143 if (unlikely(be_ipv6_tx_stall_chk(adapter
, skb
) &&
1144 (adapter
->pvid
|| adapter
->qnq_vid
) &&
1145 !qnq_async_evt_rcvd(adapter
)))
1148 /* Manual VLAN tag insertion to prevent:
1149 * ASIC lockup when the ASIC inserts VLAN tag into
1150 * certain ipv6 packets. Insert VLAN tags in driver,
1151 * and set event, completion, vlan bits accordingly
1154 if (be_ipv6_tx_stall_chk(adapter
, skb
) &&
1155 be_vlan_tag_tx_chk(adapter
, skb
)) {
1156 skb
= be_insert_vlan_in_pkt(adapter
, skb
, wrb_params
);
1163 dev_kfree_skb_any(skb
);
1168 static struct sk_buff
*be_xmit_workarounds(struct be_adapter
*adapter
,
1169 struct sk_buff
*skb
,
1170 struct be_wrb_params
*wrb_params
)
1174 /* Lancer, SH and BE3 in SRIOV mode have a bug wherein
1175 * packets that are 32b or less may cause a transmit stall
1176 * on that port. The workaround is to pad such packets
1177 * (len <= 32 bytes) to a minimum length of 36b.
1179 if (skb
->len
<= 32) {
1180 if (skb_put_padto(skb
, 36))
1184 if (BEx_chip(adapter
) || lancer_chip(adapter
)) {
1185 skb
= be_lancer_xmit_workarounds(adapter
, skb
, wrb_params
);
1190 /* The stack can send us skbs with length greater than
1191 * what the HW can handle. Trim the extra bytes.
1193 WARN_ON_ONCE(skb
->len
> BE_MAX_GSO_SIZE
);
1194 err
= pskb_trim(skb
, BE_MAX_GSO_SIZE
);
1200 static void be_xmit_flush(struct be_adapter
*adapter
, struct be_tx_obj
*txo
)
1202 struct be_queue_info
*txq
= &txo
->q
;
1203 struct be_eth_hdr_wrb
*hdr
= queue_index_node(txq
, txo
->last_req_hdr
);
1205 /* Mark the last request eventable if it hasn't been marked already */
1206 if (!(hdr
->dw
[2] & cpu_to_le32(TX_HDR_WRB_EVT
)))
1207 hdr
->dw
[2] |= cpu_to_le32(TX_HDR_WRB_EVT
| TX_HDR_WRB_COMPL
);
1209 /* compose a dummy wrb if there are odd set of wrbs to notify */
1210 if (!lancer_chip(adapter
) && (txo
->pend_wrb_cnt
& 1)) {
1211 wrb_fill_dummy(queue_head_node(txq
));
1212 queue_head_inc(txq
);
1213 atomic_inc(&txq
->used
);
1214 txo
->pend_wrb_cnt
++;
1215 hdr
->dw
[2] &= ~cpu_to_le32(TX_HDR_WRB_NUM_MASK
<<
1216 TX_HDR_WRB_NUM_SHIFT
);
1217 hdr
->dw
[2] |= cpu_to_le32((txo
->last_req_wrb_cnt
+ 1) <<
1218 TX_HDR_WRB_NUM_SHIFT
);
1220 be_txq_notify(adapter
, txo
, txo
->pend_wrb_cnt
);
1221 txo
->pend_wrb_cnt
= 0;
1224 /* OS2BMC related */
1226 #define DHCP_CLIENT_PORT 68
1227 #define DHCP_SERVER_PORT 67
1228 #define NET_BIOS_PORT1 137
1229 #define NET_BIOS_PORT2 138
1230 #define DHCPV6_RAS_PORT 547
1232 #define is_mc_allowed_on_bmc(adapter, eh) \
1233 (!is_multicast_filt_enabled(adapter) && \
1234 is_multicast_ether_addr(eh->h_dest) && \
1235 !is_broadcast_ether_addr(eh->h_dest))
1237 #define is_bc_allowed_on_bmc(adapter, eh) \
1238 (!is_broadcast_filt_enabled(adapter) && \
1239 is_broadcast_ether_addr(eh->h_dest))
1241 #define is_arp_allowed_on_bmc(adapter, skb) \
1242 (is_arp(skb) && is_arp_filt_enabled(adapter))
1244 #define is_broadcast_packet(eh, adapter) \
1245 (is_multicast_ether_addr(eh->h_dest) && \
1246 !compare_ether_addr(eh->h_dest, adapter->netdev->broadcast))
1248 #define is_arp(skb) (skb->protocol == htons(ETH_P_ARP))
1250 #define is_arp_filt_enabled(adapter) \
1251 (adapter->bmc_filt_mask & (BMC_FILT_BROADCAST_ARP))
1253 #define is_dhcp_client_filt_enabled(adapter) \
1254 (adapter->bmc_filt_mask & BMC_FILT_BROADCAST_DHCP_CLIENT)
1256 #define is_dhcp_srvr_filt_enabled(adapter) \
1257 (adapter->bmc_filt_mask & BMC_FILT_BROADCAST_DHCP_SERVER)
1259 #define is_nbios_filt_enabled(adapter) \
1260 (adapter->bmc_filt_mask & BMC_FILT_BROADCAST_NET_BIOS)
1262 #define is_ipv6_na_filt_enabled(adapter) \
1263 (adapter->bmc_filt_mask & \
1264 BMC_FILT_MULTICAST_IPV6_NEIGH_ADVER)
1266 #define is_ipv6_ra_filt_enabled(adapter) \
1267 (adapter->bmc_filt_mask & BMC_FILT_MULTICAST_IPV6_RA)
1269 #define is_ipv6_ras_filt_enabled(adapter) \
1270 (adapter->bmc_filt_mask & BMC_FILT_MULTICAST_IPV6_RAS)
1272 #define is_broadcast_filt_enabled(adapter) \
1273 (adapter->bmc_filt_mask & BMC_FILT_BROADCAST)
1275 #define is_multicast_filt_enabled(adapter) \
1276 (adapter->bmc_filt_mask & BMC_FILT_MULTICAST)
1278 static bool be_send_pkt_to_bmc(struct be_adapter
*adapter
,
1279 struct sk_buff
**skb
)
1281 struct ethhdr
*eh
= (struct ethhdr
*)(*skb
)->data
;
1282 bool os2bmc
= false;
1284 if (!be_is_os2bmc_enabled(adapter
))
1287 if (!is_multicast_ether_addr(eh
->h_dest
))
1290 if (is_mc_allowed_on_bmc(adapter
, eh
) ||
1291 is_bc_allowed_on_bmc(adapter
, eh
) ||
1292 is_arp_allowed_on_bmc(adapter
, (*skb
))) {
1297 if ((*skb
)->protocol
== htons(ETH_P_IPV6
)) {
1298 struct ipv6hdr
*hdr
= ipv6_hdr((*skb
));
1299 u8 nexthdr
= hdr
->nexthdr
;
1301 if (nexthdr
== IPPROTO_ICMPV6
) {
1302 struct icmp6hdr
*icmp6
= icmp6_hdr((*skb
));
1304 switch (icmp6
->icmp6_type
) {
1305 case NDISC_ROUTER_ADVERTISEMENT
:
1306 os2bmc
= is_ipv6_ra_filt_enabled(adapter
);
1308 case NDISC_NEIGHBOUR_ADVERTISEMENT
:
1309 os2bmc
= is_ipv6_na_filt_enabled(adapter
);
1317 if (is_udp_pkt((*skb
))) {
1318 struct udphdr
*udp
= udp_hdr((*skb
));
1320 switch (ntohs(udp
->dest
)) {
1321 case DHCP_CLIENT_PORT
:
1322 os2bmc
= is_dhcp_client_filt_enabled(adapter
);
1324 case DHCP_SERVER_PORT
:
1325 os2bmc
= is_dhcp_srvr_filt_enabled(adapter
);
1327 case NET_BIOS_PORT1
:
1328 case NET_BIOS_PORT2
:
1329 os2bmc
= is_nbios_filt_enabled(adapter
);
1331 case DHCPV6_RAS_PORT
:
1332 os2bmc
= is_ipv6_ras_filt_enabled(adapter
);
1339 /* For packets over a vlan, which are destined
1340 * to BMC, asic expects the vlan to be inline in the packet.
1343 *skb
= be_insert_vlan_in_pkt(adapter
, *skb
, NULL
);
1348 static netdev_tx_t
be_xmit(struct sk_buff
*skb
, struct net_device
*netdev
)
1350 struct be_adapter
*adapter
= netdev_priv(netdev
);
1351 u16 q_idx
= skb_get_queue_mapping(skb
);
1352 struct be_tx_obj
*txo
= &adapter
->tx_obj
[q_idx
];
1353 struct be_wrb_params wrb_params
= { 0 };
1354 bool flush
= !skb
->xmit_more
;
1357 skb
= be_xmit_workarounds(adapter
, skb
, &wrb_params
);
1361 be_get_wrb_params_from_skb(adapter
, skb
, &wrb_params
);
1363 wrb_cnt
= be_xmit_enqueue(adapter
, txo
, skb
, &wrb_params
);
1364 if (unlikely(!wrb_cnt
)) {
1365 dev_kfree_skb_any(skb
);
1369 /* if os2bmc is enabled and if the pkt is destined to bmc,
1370 * enqueue the pkt a 2nd time with mgmt bit set.
1372 if (be_send_pkt_to_bmc(adapter
, &skb
)) {
1373 BE_WRB_F_SET(wrb_params
.features
, OS2BMC
, 1);
1374 wrb_cnt
= be_xmit_enqueue(adapter
, txo
, skb
, &wrb_params
);
1375 if (unlikely(!wrb_cnt
))
1381 if (be_is_txq_full(txo
)) {
1382 netif_stop_subqueue(netdev
, q_idx
);
1383 tx_stats(txo
)->tx_stops
++;
1386 if (flush
|| __netif_subqueue_stopped(netdev
, q_idx
))
1387 be_xmit_flush(adapter
, txo
);
1389 return NETDEV_TX_OK
;
1391 tx_stats(txo
)->tx_drv_drops
++;
1392 /* Flush the already enqueued tx requests */
1393 if (flush
&& txo
->pend_wrb_cnt
)
1394 be_xmit_flush(adapter
, txo
);
1396 return NETDEV_TX_OK
;
1399 static int be_change_mtu(struct net_device
*netdev
, int new_mtu
)
1401 struct be_adapter
*adapter
= netdev_priv(netdev
);
1402 struct device
*dev
= &adapter
->pdev
->dev
;
1404 if (new_mtu
< BE_MIN_MTU
|| new_mtu
> BE_MAX_MTU
) {
1405 dev_info(dev
, "MTU must be between %d and %d bytes\n",
1406 BE_MIN_MTU
, BE_MAX_MTU
);
1410 dev_info(dev
, "MTU changed from %d to %d bytes\n",
1411 netdev
->mtu
, new_mtu
);
1412 netdev
->mtu
= new_mtu
;
1416 static inline bool be_in_all_promisc(struct be_adapter
*adapter
)
1418 return (adapter
->if_flags
& BE_IF_FLAGS_ALL_PROMISCUOUS
) ==
1419 BE_IF_FLAGS_ALL_PROMISCUOUS
;
1422 static int be_set_vlan_promisc(struct be_adapter
*adapter
)
1424 struct device
*dev
= &adapter
->pdev
->dev
;
1427 if (adapter
->if_flags
& BE_IF_FLAGS_VLAN_PROMISCUOUS
)
1430 status
= be_cmd_rx_filter(adapter
, BE_IF_FLAGS_VLAN_PROMISCUOUS
, ON
);
1432 dev_info(dev
, "Enabled VLAN promiscuous mode\n");
1433 adapter
->if_flags
|= BE_IF_FLAGS_VLAN_PROMISCUOUS
;
1435 dev_err(dev
, "Failed to enable VLAN promiscuous mode\n");
1440 static int be_clear_vlan_promisc(struct be_adapter
*adapter
)
1442 struct device
*dev
= &adapter
->pdev
->dev
;
1445 status
= be_cmd_rx_filter(adapter
, BE_IF_FLAGS_VLAN_PROMISCUOUS
, OFF
);
1447 dev_info(dev
, "Disabling VLAN promiscuous mode\n");
1448 adapter
->if_flags
&= ~BE_IF_FLAGS_VLAN_PROMISCUOUS
;
1454 * A max of 64 (BE_NUM_VLANS_SUPPORTED) vlans can be configured in BE.
1455 * If the user configures more, place BE in vlan promiscuous mode.
1457 static int be_vid_config(struct be_adapter
*adapter
)
1459 struct device
*dev
= &adapter
->pdev
->dev
;
1460 u16 vids
[BE_NUM_VLANS_SUPPORTED
];
1464 /* No need to change the VLAN state if the I/F is in promiscuous */
1465 if (adapter
->netdev
->flags
& IFF_PROMISC
)
1468 if (adapter
->vlans_added
> be_max_vlans(adapter
))
1469 return be_set_vlan_promisc(adapter
);
1471 if (adapter
->if_flags
& BE_IF_FLAGS_VLAN_PROMISCUOUS
) {
1472 status
= be_clear_vlan_promisc(adapter
);
1476 /* Construct VLAN Table to give to HW */
1477 for_each_set_bit(i
, adapter
->vids
, VLAN_N_VID
)
1478 vids
[num
++] = cpu_to_le16(i
);
1480 status
= be_cmd_vlan_config(adapter
, adapter
->if_handle
, vids
, num
, 0);
1482 dev_err(dev
, "Setting HW VLAN filtering failed\n");
1483 /* Set to VLAN promisc mode as setting VLAN filter failed */
1484 if (addl_status(status
) == MCC_ADDL_STATUS_INSUFFICIENT_VLANS
||
1485 addl_status(status
) ==
1486 MCC_ADDL_STATUS_INSUFFICIENT_RESOURCES
)
1487 return be_set_vlan_promisc(adapter
);
1492 static int be_vlan_add_vid(struct net_device
*netdev
, __be16 proto
, u16 vid
)
1494 struct be_adapter
*adapter
= netdev_priv(netdev
);
1497 mutex_lock(&adapter
->rx_filter_lock
);
1499 /* Packets with VID 0 are always received by Lancer by default */
1500 if (lancer_chip(adapter
) && vid
== 0)
1503 if (test_bit(vid
, adapter
->vids
))
1506 set_bit(vid
, adapter
->vids
);
1507 adapter
->vlans_added
++;
1509 status
= be_vid_config(adapter
);
1511 mutex_unlock(&adapter
->rx_filter_lock
);
1515 static int be_vlan_rem_vid(struct net_device
*netdev
, __be16 proto
, u16 vid
)
1517 struct be_adapter
*adapter
= netdev_priv(netdev
);
1520 mutex_lock(&adapter
->rx_filter_lock
);
1522 /* Packets with VID 0 are always received by Lancer by default */
1523 if (lancer_chip(adapter
) && vid
== 0)
1526 if (!test_bit(vid
, adapter
->vids
))
1529 clear_bit(vid
, adapter
->vids
);
1530 adapter
->vlans_added
--;
1532 status
= be_vid_config(adapter
);
1534 mutex_unlock(&adapter
->rx_filter_lock
);
1538 static void be_set_all_promisc(struct be_adapter
*adapter
)
1540 be_cmd_rx_filter(adapter
, BE_IF_FLAGS_ALL_PROMISCUOUS
, ON
);
1541 adapter
->if_flags
|= BE_IF_FLAGS_ALL_PROMISCUOUS
;
1544 static void be_set_mc_promisc(struct be_adapter
*adapter
)
1548 if (adapter
->if_flags
& BE_IF_FLAGS_MCAST_PROMISCUOUS
)
1551 status
= be_cmd_rx_filter(adapter
, BE_IF_FLAGS_MCAST_PROMISCUOUS
, ON
);
1553 adapter
->if_flags
|= BE_IF_FLAGS_MCAST_PROMISCUOUS
;
1556 static void be_set_uc_promisc(struct be_adapter
*adapter
)
1560 if (adapter
->if_flags
& BE_IF_FLAGS_PROMISCUOUS
)
1563 status
= be_cmd_rx_filter(adapter
, BE_IF_FLAGS_PROMISCUOUS
, ON
);
1565 adapter
->if_flags
|= BE_IF_FLAGS_PROMISCUOUS
;
1568 static void be_clear_uc_promisc(struct be_adapter
*adapter
)
1572 if (!(adapter
->if_flags
& BE_IF_FLAGS_PROMISCUOUS
))
1575 status
= be_cmd_rx_filter(adapter
, BE_IF_FLAGS_PROMISCUOUS
, OFF
);
1577 adapter
->if_flags
&= ~BE_IF_FLAGS_PROMISCUOUS
;
1580 /* The below 2 functions are the callback args for __dev_mc_sync/dev_uc_sync().
1581 * We use a single callback function for both sync and unsync. We really don't
1582 * add/remove addresses through this callback. But, we use it to detect changes
1583 * to the uc/mc lists. The entire uc/mc list is programmed in be_set_rx_mode().
1585 static int be_uc_list_update(struct net_device
*netdev
,
1586 const unsigned char *addr
)
1588 struct be_adapter
*adapter
= netdev_priv(netdev
);
1590 adapter
->update_uc_list
= true;
1594 static int be_mc_list_update(struct net_device
*netdev
,
1595 const unsigned char *addr
)
1597 struct be_adapter
*adapter
= netdev_priv(netdev
);
1599 adapter
->update_mc_list
= true;
1603 static void be_set_mc_list(struct be_adapter
*adapter
)
1605 struct net_device
*netdev
= adapter
->netdev
;
1606 struct netdev_hw_addr
*ha
;
1607 bool mc_promisc
= false;
1610 netif_addr_lock_bh(netdev
);
1611 __dev_mc_sync(netdev
, be_mc_list_update
, be_mc_list_update
);
1613 if (netdev
->flags
& IFF_PROMISC
) {
1614 adapter
->update_mc_list
= false;
1615 } else if (netdev
->flags
& IFF_ALLMULTI
||
1616 netdev_mc_count(netdev
) > be_max_mc(adapter
)) {
1617 /* Enable multicast promisc if num configured exceeds
1621 adapter
->update_mc_list
= false;
1622 } else if (adapter
->if_flags
& BE_IF_FLAGS_MCAST_PROMISCUOUS
) {
1623 /* Update mc-list unconditionally if the iface was previously
1624 * in mc-promisc mode and now is out of that mode.
1626 adapter
->update_mc_list
= true;
1629 if (adapter
->update_mc_list
) {
1632 /* cache the mc-list in adapter */
1633 netdev_for_each_mc_addr(ha
, netdev
) {
1634 ether_addr_copy(adapter
->mc_list
[i
].mac
, ha
->addr
);
1637 adapter
->mc_count
= netdev_mc_count(netdev
);
1639 netif_addr_unlock_bh(netdev
);
1642 be_set_mc_promisc(adapter
);
1643 } else if (adapter
->update_mc_list
) {
1644 status
= be_cmd_rx_filter(adapter
, BE_IF_FLAGS_MULTICAST
, ON
);
1646 adapter
->if_flags
&= ~BE_IF_FLAGS_MCAST_PROMISCUOUS
;
1648 be_set_mc_promisc(adapter
);
1650 adapter
->update_mc_list
= false;
1654 static void be_clear_mc_list(struct be_adapter
*adapter
)
1656 struct net_device
*netdev
= adapter
->netdev
;
1658 __dev_mc_unsync(netdev
, NULL
);
1659 be_cmd_rx_filter(adapter
, BE_IF_FLAGS_MULTICAST
, OFF
);
1660 adapter
->mc_count
= 0;
1663 static int be_uc_mac_add(struct be_adapter
*adapter
, int uc_idx
)
1665 if (ether_addr_equal((u8
*)&adapter
->uc_list
[uc_idx
* ETH_ALEN
],
1666 adapter
->dev_mac
)) {
1667 adapter
->pmac_id
[uc_idx
+ 1] = adapter
->pmac_id
[0];
1671 return be_cmd_pmac_add(adapter
,
1672 (u8
*)&adapter
->uc_list
[uc_idx
* ETH_ALEN
],
1674 &adapter
->pmac_id
[uc_idx
+ 1], 0);
1677 static void be_uc_mac_del(struct be_adapter
*adapter
, int pmac_id
)
1679 if (pmac_id
== adapter
->pmac_id
[0])
1682 be_cmd_pmac_del(adapter
, adapter
->if_handle
, pmac_id
, 0);
1685 static void be_set_uc_list(struct be_adapter
*adapter
)
1687 struct net_device
*netdev
= adapter
->netdev
;
1688 struct netdev_hw_addr
*ha
;
1689 bool uc_promisc
= false;
1690 int curr_uc_macs
= 0, i
;
1692 netif_addr_lock_bh(netdev
);
1693 __dev_uc_sync(netdev
, be_uc_list_update
, be_uc_list_update
);
1695 if (netdev
->flags
& IFF_PROMISC
) {
1696 adapter
->update_uc_list
= false;
1697 } else if (netdev_uc_count(netdev
) > (be_max_uc(adapter
) - 1)) {
1699 adapter
->update_uc_list
= false;
1700 } else if (adapter
->if_flags
& BE_IF_FLAGS_PROMISCUOUS
) {
1701 /* Update uc-list unconditionally if the iface was previously
1702 * in uc-promisc mode and now is out of that mode.
1704 adapter
->update_uc_list
= true;
1707 if (adapter
->update_uc_list
) {
1708 i
= 1; /* First slot is claimed by the Primary MAC */
1710 /* cache the uc-list in adapter array */
1711 netdev_for_each_uc_addr(ha
, netdev
) {
1712 ether_addr_copy(adapter
->uc_list
[i
].mac
, ha
->addr
);
1715 curr_uc_macs
= netdev_uc_count(netdev
);
1717 netif_addr_unlock_bh(netdev
);
1720 be_set_uc_promisc(adapter
);
1721 } else if (adapter
->update_uc_list
) {
1722 be_clear_uc_promisc(adapter
);
1724 for (i
= 0; i
< adapter
->uc_macs
; i
++)
1725 be_uc_mac_del(adapter
, adapter
->pmac_id
[i
+ 1]);
1727 for (i
= 0; i
< curr_uc_macs
; i
++)
1728 be_uc_mac_add(adapter
, i
);
1729 adapter
->uc_macs
= curr_uc_macs
;
1730 adapter
->update_uc_list
= false;
1734 static void be_clear_uc_list(struct be_adapter
*adapter
)
1736 struct net_device
*netdev
= adapter
->netdev
;
1739 __dev_uc_unsync(netdev
, NULL
);
1740 for (i
= 0; i
< adapter
->uc_macs
; i
++)
1741 be_uc_mac_del(adapter
, adapter
->pmac_id
[i
+ 1]);
1743 adapter
->uc_macs
= 0;
1746 static void __be_set_rx_mode(struct be_adapter
*adapter
)
1748 struct net_device
*netdev
= adapter
->netdev
;
1750 mutex_lock(&adapter
->rx_filter_lock
);
1752 if (netdev
->flags
& IFF_PROMISC
) {
1753 if (!be_in_all_promisc(adapter
))
1754 be_set_all_promisc(adapter
);
1755 } else if (be_in_all_promisc(adapter
)) {
1756 /* We need to re-program the vlan-list or clear
1757 * vlan-promisc mode (if needed) when the interface
1758 * comes out of promisc mode.
1760 be_vid_config(adapter
);
1763 be_set_uc_list(adapter
);
1764 be_set_mc_list(adapter
);
1766 mutex_unlock(&adapter
->rx_filter_lock
);
1769 static void be_work_set_rx_mode(struct work_struct
*work
)
1771 struct be_cmd_work
*cmd_work
=
1772 container_of(work
, struct be_cmd_work
, work
);
1774 __be_set_rx_mode(cmd_work
->adapter
);
1778 static int be_set_vf_mac(struct net_device
*netdev
, int vf
, u8
*mac
)
1780 struct be_adapter
*adapter
= netdev_priv(netdev
);
1781 struct be_vf_cfg
*vf_cfg
= &adapter
->vf_cfg
[vf
];
1784 if (!sriov_enabled(adapter
))
1787 if (!is_valid_ether_addr(mac
) || vf
>= adapter
->num_vfs
)
1790 /* Proceed further only if user provided MAC is different
1793 if (ether_addr_equal(mac
, vf_cfg
->mac_addr
))
1796 if (BEx_chip(adapter
)) {
1797 be_cmd_pmac_del(adapter
, vf_cfg
->if_handle
, vf_cfg
->pmac_id
,
1800 status
= be_cmd_pmac_add(adapter
, mac
, vf_cfg
->if_handle
,
1801 &vf_cfg
->pmac_id
, vf
+ 1);
1803 status
= be_cmd_set_mac(adapter
, mac
, vf_cfg
->if_handle
,
1808 dev_err(&adapter
->pdev
->dev
, "MAC %pM set on VF %d Failed: %#x",
1810 return be_cmd_status(status
);
1813 ether_addr_copy(vf_cfg
->mac_addr
, mac
);
1818 static int be_get_vf_config(struct net_device
*netdev
, int vf
,
1819 struct ifla_vf_info
*vi
)
1821 struct be_adapter
*adapter
= netdev_priv(netdev
);
1822 struct be_vf_cfg
*vf_cfg
= &adapter
->vf_cfg
[vf
];
1824 if (!sriov_enabled(adapter
))
1827 if (vf
>= adapter
->num_vfs
)
1831 vi
->max_tx_rate
= vf_cfg
->tx_rate
;
1832 vi
->min_tx_rate
= 0;
1833 vi
->vlan
= vf_cfg
->vlan_tag
& VLAN_VID_MASK
;
1834 vi
->qos
= vf_cfg
->vlan_tag
>> VLAN_PRIO_SHIFT
;
1835 memcpy(&vi
->mac
, vf_cfg
->mac_addr
, ETH_ALEN
);
1836 vi
->linkstate
= adapter
->vf_cfg
[vf
].plink_tracking
;
1837 vi
->spoofchk
= adapter
->vf_cfg
[vf
].spoofchk
;
1842 static int be_set_vf_tvt(struct be_adapter
*adapter
, int vf
, u16 vlan
)
1844 struct be_vf_cfg
*vf_cfg
= &adapter
->vf_cfg
[vf
];
1845 u16 vids
[BE_NUM_VLANS_SUPPORTED
];
1846 int vf_if_id
= vf_cfg
->if_handle
;
1849 /* Enable Transparent VLAN Tagging */
1850 status
= be_cmd_set_hsw_config(adapter
, vlan
, vf
+ 1, vf_if_id
, 0, 0);
1854 /* Clear pre-programmed VLAN filters on VF if any, if TVT is enabled */
1856 status
= be_cmd_vlan_config(adapter
, vf_if_id
, vids
, 1, vf
+ 1);
1858 dev_info(&adapter
->pdev
->dev
,
1859 "Cleared guest VLANs on VF%d", vf
);
1861 /* After TVT is enabled, disallow VFs to program VLAN filters */
1862 if (vf_cfg
->privileges
& BE_PRIV_FILTMGMT
) {
1863 status
= be_cmd_set_fn_privileges(adapter
, vf_cfg
->privileges
&
1864 ~BE_PRIV_FILTMGMT
, vf
+ 1);
1866 vf_cfg
->privileges
&= ~BE_PRIV_FILTMGMT
;
1871 static int be_clear_vf_tvt(struct be_adapter
*adapter
, int vf
)
1873 struct be_vf_cfg
*vf_cfg
= &adapter
->vf_cfg
[vf
];
1874 struct device
*dev
= &adapter
->pdev
->dev
;
1877 /* Reset Transparent VLAN Tagging. */
1878 status
= be_cmd_set_hsw_config(adapter
, BE_RESET_VLAN_TAG_ID
, vf
+ 1,
1879 vf_cfg
->if_handle
, 0, 0);
1883 /* Allow VFs to program VLAN filtering */
1884 if (!(vf_cfg
->privileges
& BE_PRIV_FILTMGMT
)) {
1885 status
= be_cmd_set_fn_privileges(adapter
, vf_cfg
->privileges
|
1886 BE_PRIV_FILTMGMT
, vf
+ 1);
1888 vf_cfg
->privileges
|= BE_PRIV_FILTMGMT
;
1889 dev_info(dev
, "VF%d: FILTMGMT priv enabled", vf
);
1894 "Disable/re-enable i/f in VM to clear Transparent VLAN tag");
1898 static int be_set_vf_vlan(struct net_device
*netdev
, int vf
, u16 vlan
, u8 qos
)
1900 struct be_adapter
*adapter
= netdev_priv(netdev
);
1901 struct be_vf_cfg
*vf_cfg
= &adapter
->vf_cfg
[vf
];
1904 if (!sriov_enabled(adapter
))
1907 if (vf
>= adapter
->num_vfs
|| vlan
> 4095 || qos
> 7)
1911 vlan
|= qos
<< VLAN_PRIO_SHIFT
;
1912 status
= be_set_vf_tvt(adapter
, vf
, vlan
);
1914 status
= be_clear_vf_tvt(adapter
, vf
);
1918 dev_err(&adapter
->pdev
->dev
,
1919 "VLAN %d config on VF %d failed : %#x\n", vlan
, vf
,
1921 return be_cmd_status(status
);
1924 vf_cfg
->vlan_tag
= vlan
;
1928 static int be_set_vf_tx_rate(struct net_device
*netdev
, int vf
,
1929 int min_tx_rate
, int max_tx_rate
)
1931 struct be_adapter
*adapter
= netdev_priv(netdev
);
1932 struct device
*dev
= &adapter
->pdev
->dev
;
1933 int percent_rate
, status
= 0;
1937 if (!sriov_enabled(adapter
))
1940 if (vf
>= adapter
->num_vfs
)
1949 status
= be_cmd_link_status_query(adapter
, &link_speed
,
1955 dev_err(dev
, "TX-rate setting not allowed when link is down\n");
1960 if (max_tx_rate
< 100 || max_tx_rate
> link_speed
) {
1961 dev_err(dev
, "TX-rate must be between 100 and %d Mbps\n",
1967 /* On Skyhawk the QOS setting must be done only as a % value */
1968 percent_rate
= link_speed
/ 100;
1969 if (skyhawk_chip(adapter
) && (max_tx_rate
% percent_rate
)) {
1970 dev_err(dev
, "TX-rate must be a multiple of %d Mbps\n",
1977 status
= be_cmd_config_qos(adapter
, max_tx_rate
, link_speed
, vf
+ 1);
1981 adapter
->vf_cfg
[vf
].tx_rate
= max_tx_rate
;
1985 dev_err(dev
, "TX-rate setting of %dMbps on VF%d failed\n",
1987 return be_cmd_status(status
);
1990 static int be_set_vf_link_state(struct net_device
*netdev
, int vf
,
1993 struct be_adapter
*adapter
= netdev_priv(netdev
);
1996 if (!sriov_enabled(adapter
))
1999 if (vf
>= adapter
->num_vfs
)
2002 status
= be_cmd_set_logical_link_config(adapter
, link_state
, vf
+1);
2004 dev_err(&adapter
->pdev
->dev
,
2005 "Link state change on VF %d failed: %#x\n", vf
, status
);
2006 return be_cmd_status(status
);
2009 adapter
->vf_cfg
[vf
].plink_tracking
= link_state
;
2014 static int be_set_vf_spoofchk(struct net_device
*netdev
, int vf
, bool enable
)
2016 struct be_adapter
*adapter
= netdev_priv(netdev
);
2017 struct be_vf_cfg
*vf_cfg
= &adapter
->vf_cfg
[vf
];
2021 if (!sriov_enabled(adapter
))
2024 if (vf
>= adapter
->num_vfs
)
2027 if (BEx_chip(adapter
))
2030 if (enable
== vf_cfg
->spoofchk
)
2033 spoofchk
= enable
? ENABLE_MAC_SPOOFCHK
: DISABLE_MAC_SPOOFCHK
;
2035 status
= be_cmd_set_hsw_config(adapter
, 0, vf
+ 1, vf_cfg
->if_handle
,
2038 dev_err(&adapter
->pdev
->dev
,
2039 "Spoofchk change on VF %d failed: %#x\n", vf
, status
);
2040 return be_cmd_status(status
);
2043 vf_cfg
->spoofchk
= enable
;
2047 static void be_aic_update(struct be_aic_obj
*aic
, u64 rx_pkts
, u64 tx_pkts
,
2050 aic
->rx_pkts_prev
= rx_pkts
;
2051 aic
->tx_reqs_prev
= tx_pkts
;
2055 static int be_get_new_eqd(struct be_eq_obj
*eqo
)
2057 struct be_adapter
*adapter
= eqo
->adapter
;
2059 struct be_aic_obj
*aic
;
2060 struct be_rx_obj
*rxo
;
2061 struct be_tx_obj
*txo
;
2062 u64 rx_pkts
= 0, tx_pkts
= 0;
2067 aic
= &adapter
->aic_obj
[eqo
->idx
];
2075 for_all_rx_queues_on_eq(adapter
, eqo
, rxo
, i
) {
2077 start
= u64_stats_fetch_begin_irq(&rxo
->stats
.sync
);
2078 rx_pkts
+= rxo
->stats
.rx_pkts
;
2079 } while (u64_stats_fetch_retry_irq(&rxo
->stats
.sync
, start
));
2082 for_all_tx_queues_on_eq(adapter
, eqo
, txo
, i
) {
2084 start
= u64_stats_fetch_begin_irq(&txo
->stats
.sync
);
2085 tx_pkts
+= txo
->stats
.tx_reqs
;
2086 } while (u64_stats_fetch_retry_irq(&txo
->stats
.sync
, start
));
2089 /* Skip, if wrapped around or first calculation */
2091 if (!aic
->jiffies
|| time_before(now
, aic
->jiffies
) ||
2092 rx_pkts
< aic
->rx_pkts_prev
||
2093 tx_pkts
< aic
->tx_reqs_prev
) {
2094 be_aic_update(aic
, rx_pkts
, tx_pkts
, now
);
2095 return aic
->prev_eqd
;
2098 delta
= jiffies_to_msecs(now
- aic
->jiffies
);
2100 return aic
->prev_eqd
;
2102 pps
= (((u32
)(rx_pkts
- aic
->rx_pkts_prev
) * 1000) / delta
) +
2103 (((u32
)(tx_pkts
- aic
->tx_reqs_prev
) * 1000) / delta
);
2104 eqd
= (pps
/ 15000) << 2;
2108 eqd
= min_t(u32
, eqd
, aic
->max_eqd
);
2109 eqd
= max_t(u32
, eqd
, aic
->min_eqd
);
2111 be_aic_update(aic
, rx_pkts
, tx_pkts
, now
);
2116 /* For Skyhawk-R only */
2117 static u32
be_get_eq_delay_mult_enc(struct be_eq_obj
*eqo
)
2119 struct be_adapter
*adapter
= eqo
->adapter
;
2120 struct be_aic_obj
*aic
= &adapter
->aic_obj
[eqo
->idx
];
2121 ulong now
= jiffies
;
2128 if (jiffies_to_msecs(now
- aic
->jiffies
) < 1)
2129 eqd
= aic
->prev_eqd
;
2131 eqd
= be_get_new_eqd(eqo
);
2134 mult_enc
= R2I_DLY_ENC_1
;
2136 mult_enc
= R2I_DLY_ENC_2
;
2138 mult_enc
= R2I_DLY_ENC_3
;
2140 mult_enc
= R2I_DLY_ENC_0
;
2142 aic
->prev_eqd
= eqd
;
2147 void be_eqd_update(struct be_adapter
*adapter
, bool force_update
)
2149 struct be_set_eqd set_eqd
[MAX_EVT_QS
];
2150 struct be_aic_obj
*aic
;
2151 struct be_eq_obj
*eqo
;
2152 int i
, num
= 0, eqd
;
2154 for_all_evt_queues(adapter
, eqo
, i
) {
2155 aic
= &adapter
->aic_obj
[eqo
->idx
];
2156 eqd
= be_get_new_eqd(eqo
);
2157 if (force_update
|| eqd
!= aic
->prev_eqd
) {
2158 set_eqd
[num
].delay_multiplier
= (eqd
* 65)/100;
2159 set_eqd
[num
].eq_id
= eqo
->q
.id
;
2160 aic
->prev_eqd
= eqd
;
2166 be_cmd_modify_eqd(adapter
, set_eqd
, num
);
2169 static void be_rx_stats_update(struct be_rx_obj
*rxo
,
2170 struct be_rx_compl_info
*rxcp
)
2172 struct be_rx_stats
*stats
= rx_stats(rxo
);
2174 u64_stats_update_begin(&stats
->sync
);
2176 stats
->rx_bytes
+= rxcp
->pkt_size
;
2179 stats
->rx_vxlan_offload_pkts
++;
2180 if (rxcp
->pkt_type
== BE_MULTICAST_PACKET
)
2181 stats
->rx_mcast_pkts
++;
2183 stats
->rx_compl_err
++;
2184 u64_stats_update_end(&stats
->sync
);
2187 static inline bool csum_passed(struct be_rx_compl_info
*rxcp
)
2189 /* L4 checksum is not reliable for non TCP/UDP packets.
2190 * Also ignore ipcksm for ipv6 pkts
2192 return (rxcp
->tcpf
|| rxcp
->udpf
) && rxcp
->l4_csum
&&
2193 (rxcp
->ip_csum
|| rxcp
->ipv6
) && !rxcp
->err
;
2196 static struct be_rx_page_info
*get_rx_page_info(struct be_rx_obj
*rxo
)
2198 struct be_adapter
*adapter
= rxo
->adapter
;
2199 struct be_rx_page_info
*rx_page_info
;
2200 struct be_queue_info
*rxq
= &rxo
->q
;
2201 u32 frag_idx
= rxq
->tail
;
2203 rx_page_info
= &rxo
->page_info_tbl
[frag_idx
];
2204 BUG_ON(!rx_page_info
->page
);
2206 if (rx_page_info
->last_frag
) {
2207 dma_unmap_page(&adapter
->pdev
->dev
,
2208 dma_unmap_addr(rx_page_info
, bus
),
2209 adapter
->big_page_size
, DMA_FROM_DEVICE
);
2210 rx_page_info
->last_frag
= false;
2212 dma_sync_single_for_cpu(&adapter
->pdev
->dev
,
2213 dma_unmap_addr(rx_page_info
, bus
),
2214 rx_frag_size
, DMA_FROM_DEVICE
);
2217 queue_tail_inc(rxq
);
2218 atomic_dec(&rxq
->used
);
2219 return rx_page_info
;
2222 /* Throwaway the data in the Rx completion */
2223 static void be_rx_compl_discard(struct be_rx_obj
*rxo
,
2224 struct be_rx_compl_info
*rxcp
)
2226 struct be_rx_page_info
*page_info
;
2227 u16 i
, num_rcvd
= rxcp
->num_rcvd
;
2229 for (i
= 0; i
< num_rcvd
; i
++) {
2230 page_info
= get_rx_page_info(rxo
);
2231 put_page(page_info
->page
);
2232 memset(page_info
, 0, sizeof(*page_info
));
2237 * skb_fill_rx_data forms a complete skb for an ether frame
2238 * indicated by rxcp.
2240 static void skb_fill_rx_data(struct be_rx_obj
*rxo
, struct sk_buff
*skb
,
2241 struct be_rx_compl_info
*rxcp
)
2243 struct be_rx_page_info
*page_info
;
2245 u16 hdr_len
, curr_frag_len
, remaining
;
2248 page_info
= get_rx_page_info(rxo
);
2249 start
= page_address(page_info
->page
) + page_info
->page_offset
;
2252 /* Copy data in the first descriptor of this completion */
2253 curr_frag_len
= min(rxcp
->pkt_size
, rx_frag_size
);
2255 skb
->len
= curr_frag_len
;
2256 if (curr_frag_len
<= BE_HDR_LEN
) { /* tiny packet */
2257 memcpy(skb
->data
, start
, curr_frag_len
);
2258 /* Complete packet has now been moved to data */
2259 put_page(page_info
->page
);
2261 skb
->tail
+= curr_frag_len
;
2264 memcpy(skb
->data
, start
, hdr_len
);
2265 skb_shinfo(skb
)->nr_frags
= 1;
2266 skb_frag_set_page(skb
, 0, page_info
->page
);
2267 skb_shinfo(skb
)->frags
[0].page_offset
=
2268 page_info
->page_offset
+ hdr_len
;
2269 skb_frag_size_set(&skb_shinfo(skb
)->frags
[0],
2270 curr_frag_len
- hdr_len
);
2271 skb
->data_len
= curr_frag_len
- hdr_len
;
2272 skb
->truesize
+= rx_frag_size
;
2273 skb
->tail
+= hdr_len
;
2275 page_info
->page
= NULL
;
2277 if (rxcp
->pkt_size
<= rx_frag_size
) {
2278 BUG_ON(rxcp
->num_rcvd
!= 1);
2282 /* More frags present for this completion */
2283 remaining
= rxcp
->pkt_size
- curr_frag_len
;
2284 for (i
= 1, j
= 0; i
< rxcp
->num_rcvd
; i
++) {
2285 page_info
= get_rx_page_info(rxo
);
2286 curr_frag_len
= min(remaining
, rx_frag_size
);
2288 /* Coalesce all frags from the same physical page in one slot */
2289 if (page_info
->page_offset
== 0) {
2292 skb_frag_set_page(skb
, j
, page_info
->page
);
2293 skb_shinfo(skb
)->frags
[j
].page_offset
=
2294 page_info
->page_offset
;
2295 skb_frag_size_set(&skb_shinfo(skb
)->frags
[j
], 0);
2296 skb_shinfo(skb
)->nr_frags
++;
2298 put_page(page_info
->page
);
2301 skb_frag_size_add(&skb_shinfo(skb
)->frags
[j
], curr_frag_len
);
2302 skb
->len
+= curr_frag_len
;
2303 skb
->data_len
+= curr_frag_len
;
2304 skb
->truesize
+= rx_frag_size
;
2305 remaining
-= curr_frag_len
;
2306 page_info
->page
= NULL
;
2308 BUG_ON(j
> MAX_SKB_FRAGS
);
2311 /* Process the RX completion indicated by rxcp when GRO is disabled */
2312 static void be_rx_compl_process(struct be_rx_obj
*rxo
, struct napi_struct
*napi
,
2313 struct be_rx_compl_info
*rxcp
)
2315 struct be_adapter
*adapter
= rxo
->adapter
;
2316 struct net_device
*netdev
= adapter
->netdev
;
2317 struct sk_buff
*skb
;
2319 skb
= netdev_alloc_skb_ip_align(netdev
, BE_RX_SKB_ALLOC_SIZE
);
2320 if (unlikely(!skb
)) {
2321 rx_stats(rxo
)->rx_drops_no_skbs
++;
2322 be_rx_compl_discard(rxo
, rxcp
);
2326 skb_fill_rx_data(rxo
, skb
, rxcp
);
2328 if (likely((netdev
->features
& NETIF_F_RXCSUM
) && csum_passed(rxcp
)))
2329 skb
->ip_summed
= CHECKSUM_UNNECESSARY
;
2331 skb_checksum_none_assert(skb
);
2333 skb
->protocol
= eth_type_trans(skb
, netdev
);
2334 skb_record_rx_queue(skb
, rxo
- &adapter
->rx_obj
[0]);
2335 if (netdev
->features
& NETIF_F_RXHASH
)
2336 skb_set_hash(skb
, rxcp
->rss_hash
, PKT_HASH_TYPE_L3
);
2338 skb
->csum_level
= rxcp
->tunneled
;
2339 skb_mark_napi_id(skb
, napi
);
2342 __vlan_hwaccel_put_tag(skb
, htons(ETH_P_8021Q
), rxcp
->vlan_tag
);
2344 netif_receive_skb(skb
);
2347 /* Process the RX completion indicated by rxcp when GRO is enabled */
2348 static void be_rx_compl_process_gro(struct be_rx_obj
*rxo
,
2349 struct napi_struct
*napi
,
2350 struct be_rx_compl_info
*rxcp
)
2352 struct be_adapter
*adapter
= rxo
->adapter
;
2353 struct be_rx_page_info
*page_info
;
2354 struct sk_buff
*skb
= NULL
;
2355 u16 remaining
, curr_frag_len
;
2358 skb
= napi_get_frags(napi
);
2360 be_rx_compl_discard(rxo
, rxcp
);
2364 remaining
= rxcp
->pkt_size
;
2365 for (i
= 0, j
= -1; i
< rxcp
->num_rcvd
; i
++) {
2366 page_info
= get_rx_page_info(rxo
);
2368 curr_frag_len
= min(remaining
, rx_frag_size
);
2370 /* Coalesce all frags from the same physical page in one slot */
2371 if (i
== 0 || page_info
->page_offset
== 0) {
2372 /* First frag or Fresh page */
2374 skb_frag_set_page(skb
, j
, page_info
->page
);
2375 skb_shinfo(skb
)->frags
[j
].page_offset
=
2376 page_info
->page_offset
;
2377 skb_frag_size_set(&skb_shinfo(skb
)->frags
[j
], 0);
2379 put_page(page_info
->page
);
2381 skb_frag_size_add(&skb_shinfo(skb
)->frags
[j
], curr_frag_len
);
2382 skb
->truesize
+= rx_frag_size
;
2383 remaining
-= curr_frag_len
;
2384 memset(page_info
, 0, sizeof(*page_info
));
2386 BUG_ON(j
> MAX_SKB_FRAGS
);
2388 skb_shinfo(skb
)->nr_frags
= j
+ 1;
2389 skb
->len
= rxcp
->pkt_size
;
2390 skb
->data_len
= rxcp
->pkt_size
;
2391 skb
->ip_summed
= CHECKSUM_UNNECESSARY
;
2392 skb_record_rx_queue(skb
, rxo
- &adapter
->rx_obj
[0]);
2393 if (adapter
->netdev
->features
& NETIF_F_RXHASH
)
2394 skb_set_hash(skb
, rxcp
->rss_hash
, PKT_HASH_TYPE_L3
);
2396 skb
->csum_level
= rxcp
->tunneled
;
2399 __vlan_hwaccel_put_tag(skb
, htons(ETH_P_8021Q
), rxcp
->vlan_tag
);
2401 napi_gro_frags(napi
);
2404 static void be_parse_rx_compl_v1(struct be_eth_rx_compl
*compl,
2405 struct be_rx_compl_info
*rxcp
)
2407 rxcp
->pkt_size
= GET_RX_COMPL_V1_BITS(pktsize
, compl);
2408 rxcp
->vlanf
= GET_RX_COMPL_V1_BITS(vtp
, compl);
2409 rxcp
->err
= GET_RX_COMPL_V1_BITS(err
, compl);
2410 rxcp
->tcpf
= GET_RX_COMPL_V1_BITS(tcpf
, compl);
2411 rxcp
->udpf
= GET_RX_COMPL_V1_BITS(udpf
, compl);
2412 rxcp
->ip_csum
= GET_RX_COMPL_V1_BITS(ipcksm
, compl);
2413 rxcp
->l4_csum
= GET_RX_COMPL_V1_BITS(l4_cksm
, compl);
2414 rxcp
->ipv6
= GET_RX_COMPL_V1_BITS(ip_version
, compl);
2415 rxcp
->num_rcvd
= GET_RX_COMPL_V1_BITS(numfrags
, compl);
2416 rxcp
->pkt_type
= GET_RX_COMPL_V1_BITS(cast_enc
, compl);
2417 rxcp
->rss_hash
= GET_RX_COMPL_V1_BITS(rsshash
, compl);
2419 rxcp
->qnq
= GET_RX_COMPL_V1_BITS(qnq
, compl);
2420 rxcp
->vlan_tag
= GET_RX_COMPL_V1_BITS(vlan_tag
, compl);
2422 rxcp
->port
= GET_RX_COMPL_V1_BITS(port
, compl);
2424 GET_RX_COMPL_V1_BITS(tunneled
, compl);
2427 static void be_parse_rx_compl_v0(struct be_eth_rx_compl
*compl,
2428 struct be_rx_compl_info
*rxcp
)
2430 rxcp
->pkt_size
= GET_RX_COMPL_V0_BITS(pktsize
, compl);
2431 rxcp
->vlanf
= GET_RX_COMPL_V0_BITS(vtp
, compl);
2432 rxcp
->err
= GET_RX_COMPL_V0_BITS(err
, compl);
2433 rxcp
->tcpf
= GET_RX_COMPL_V0_BITS(tcpf
, compl);
2434 rxcp
->udpf
= GET_RX_COMPL_V0_BITS(udpf
, compl);
2435 rxcp
->ip_csum
= GET_RX_COMPL_V0_BITS(ipcksm
, compl);
2436 rxcp
->l4_csum
= GET_RX_COMPL_V0_BITS(l4_cksm
, compl);
2437 rxcp
->ipv6
= GET_RX_COMPL_V0_BITS(ip_version
, compl);
2438 rxcp
->num_rcvd
= GET_RX_COMPL_V0_BITS(numfrags
, compl);
2439 rxcp
->pkt_type
= GET_RX_COMPL_V0_BITS(cast_enc
, compl);
2440 rxcp
->rss_hash
= GET_RX_COMPL_V0_BITS(rsshash
, compl);
2442 rxcp
->qnq
= GET_RX_COMPL_V0_BITS(qnq
, compl);
2443 rxcp
->vlan_tag
= GET_RX_COMPL_V0_BITS(vlan_tag
, compl);
2445 rxcp
->port
= GET_RX_COMPL_V0_BITS(port
, compl);
2446 rxcp
->ip_frag
= GET_RX_COMPL_V0_BITS(ip_frag
, compl);
2449 static struct be_rx_compl_info
*be_rx_compl_get(struct be_rx_obj
*rxo
)
2451 struct be_eth_rx_compl
*compl = queue_tail_node(&rxo
->cq
);
2452 struct be_rx_compl_info
*rxcp
= &rxo
->rxcp
;
2453 struct be_adapter
*adapter
= rxo
->adapter
;
2455 /* For checking the valid bit it is Ok to use either definition as the
2456 * valid bit is at the same position in both v0 and v1 Rx compl */
2457 if (compl->dw
[offsetof(struct amap_eth_rx_compl_v1
, valid
) / 32] == 0)
2461 be_dws_le_to_cpu(compl, sizeof(*compl));
2463 if (adapter
->be3_native
)
2464 be_parse_rx_compl_v1(compl, rxcp
);
2466 be_parse_rx_compl_v0(compl, rxcp
);
2472 /* In QNQ modes, if qnq bit is not set, then the packet was
2473 * tagged only with the transparent outer vlan-tag and must
2474 * not be treated as a vlan packet by host
2476 if (be_is_qnq_mode(adapter
) && !rxcp
->qnq
)
2479 if (!lancer_chip(adapter
))
2480 rxcp
->vlan_tag
= swab16(rxcp
->vlan_tag
);
2482 if (adapter
->pvid
== (rxcp
->vlan_tag
& VLAN_VID_MASK
) &&
2483 !test_bit(rxcp
->vlan_tag
, adapter
->vids
))
2487 /* As the compl has been parsed, reset it; we wont touch it again */
2488 compl->dw
[offsetof(struct amap_eth_rx_compl_v1
, valid
) / 32] = 0;
2490 queue_tail_inc(&rxo
->cq
);
2494 static inline struct page
*be_alloc_pages(u32 size
, gfp_t gfp
)
2496 u32 order
= get_order(size
);
2500 return alloc_pages(gfp
, order
);
2504 * Allocate a page, split it to fragments of size rx_frag_size and post as
2505 * receive buffers to BE
2507 static void be_post_rx_frags(struct be_rx_obj
*rxo
, gfp_t gfp
, u32 frags_needed
)
2509 struct be_adapter
*adapter
= rxo
->adapter
;
2510 struct be_rx_page_info
*page_info
= NULL
, *prev_page_info
= NULL
;
2511 struct be_queue_info
*rxq
= &rxo
->q
;
2512 struct page
*pagep
= NULL
;
2513 struct device
*dev
= &adapter
->pdev
->dev
;
2514 struct be_eth_rx_d
*rxd
;
2515 u64 page_dmaaddr
= 0, frag_dmaaddr
;
2516 u32 posted
, page_offset
= 0, notify
= 0;
2518 page_info
= &rxo
->page_info_tbl
[rxq
->head
];
2519 for (posted
= 0; posted
< frags_needed
&& !page_info
->page
; posted
++) {
2521 pagep
= be_alloc_pages(adapter
->big_page_size
, gfp
);
2522 if (unlikely(!pagep
)) {
2523 rx_stats(rxo
)->rx_post_fail
++;
2526 page_dmaaddr
= dma_map_page(dev
, pagep
, 0,
2527 adapter
->big_page_size
,
2529 if (dma_mapping_error(dev
, page_dmaaddr
)) {
2532 adapter
->drv_stats
.dma_map_errors
++;
2538 page_offset
+= rx_frag_size
;
2540 page_info
->page_offset
= page_offset
;
2541 page_info
->page
= pagep
;
2543 rxd
= queue_head_node(rxq
);
2544 frag_dmaaddr
= page_dmaaddr
+ page_info
->page_offset
;
2545 rxd
->fragpa_lo
= cpu_to_le32(frag_dmaaddr
& 0xFFFFFFFF);
2546 rxd
->fragpa_hi
= cpu_to_le32(upper_32_bits(frag_dmaaddr
));
2548 /* Any space left in the current big page for another frag? */
2549 if ((page_offset
+ rx_frag_size
+ rx_frag_size
) >
2550 adapter
->big_page_size
) {
2552 page_info
->last_frag
= true;
2553 dma_unmap_addr_set(page_info
, bus
, page_dmaaddr
);
2555 dma_unmap_addr_set(page_info
, bus
, frag_dmaaddr
);
2558 prev_page_info
= page_info
;
2559 queue_head_inc(rxq
);
2560 page_info
= &rxo
->page_info_tbl
[rxq
->head
];
2563 /* Mark the last frag of a page when we break out of the above loop
2564 * with no more slots available in the RXQ
2567 prev_page_info
->last_frag
= true;
2568 dma_unmap_addr_set(prev_page_info
, bus
, page_dmaaddr
);
2572 atomic_add(posted
, &rxq
->used
);
2573 if (rxo
->rx_post_starved
)
2574 rxo
->rx_post_starved
= false;
2576 notify
= min(MAX_NUM_POST_ERX_DB
, posted
);
2577 be_rxq_notify(adapter
, rxq
->id
, notify
);
2580 } else if (atomic_read(&rxq
->used
) == 0) {
2581 /* Let be_worker replenish when memory is available */
2582 rxo
->rx_post_starved
= true;
2586 static struct be_tx_compl_info
*be_tx_compl_get(struct be_tx_obj
*txo
)
2588 struct be_queue_info
*tx_cq
= &txo
->cq
;
2589 struct be_tx_compl_info
*txcp
= &txo
->txcp
;
2590 struct be_eth_tx_compl
*compl = queue_tail_node(tx_cq
);
2592 if (compl->dw
[offsetof(struct amap_eth_tx_compl
, valid
) / 32] == 0)
2595 /* Ensure load ordering of valid bit dword and other dwords below */
2597 be_dws_le_to_cpu(compl, sizeof(*compl));
2599 txcp
->status
= GET_TX_COMPL_BITS(status
, compl);
2600 txcp
->end_index
= GET_TX_COMPL_BITS(wrb_index
, compl);
2602 compl->dw
[offsetof(struct amap_eth_tx_compl
, valid
) / 32] = 0;
2603 queue_tail_inc(tx_cq
);
2607 static u16
be_tx_compl_process(struct be_adapter
*adapter
,
2608 struct be_tx_obj
*txo
, u16 last_index
)
2610 struct sk_buff
**sent_skbs
= txo
->sent_skb_list
;
2611 struct be_queue_info
*txq
= &txo
->q
;
2612 struct sk_buff
*skb
= NULL
;
2613 bool unmap_skb_hdr
= false;
2614 struct be_eth_wrb
*wrb
;
2619 if (sent_skbs
[txq
->tail
]) {
2620 /* Free skb from prev req */
2622 dev_consume_skb_any(skb
);
2623 skb
= sent_skbs
[txq
->tail
];
2624 sent_skbs
[txq
->tail
] = NULL
;
2625 queue_tail_inc(txq
); /* skip hdr wrb */
2627 unmap_skb_hdr
= true;
2629 wrb
= queue_tail_node(txq
);
2630 frag_index
= txq
->tail
;
2631 unmap_tx_frag(&adapter
->pdev
->dev
, wrb
,
2632 (unmap_skb_hdr
&& skb_headlen(skb
)));
2633 unmap_skb_hdr
= false;
2634 queue_tail_inc(txq
);
2636 } while (frag_index
!= last_index
);
2637 dev_consume_skb_any(skb
);
2642 /* Return the number of events in the event queue */
2643 static inline int events_get(struct be_eq_obj
*eqo
)
2645 struct be_eq_entry
*eqe
;
2649 eqe
= queue_tail_node(&eqo
->q
);
2656 queue_tail_inc(&eqo
->q
);
2662 /* Leaves the EQ is disarmed state */
2663 static void be_eq_clean(struct be_eq_obj
*eqo
)
2665 int num
= events_get(eqo
);
2667 be_eq_notify(eqo
->adapter
, eqo
->q
.id
, false, true, num
, 0);
2670 /* Free posted rx buffers that were not used */
2671 static void be_rxq_clean(struct be_rx_obj
*rxo
)
2673 struct be_queue_info
*rxq
= &rxo
->q
;
2674 struct be_rx_page_info
*page_info
;
2676 while (atomic_read(&rxq
->used
) > 0) {
2677 page_info
= get_rx_page_info(rxo
);
2678 put_page(page_info
->page
);
2679 memset(page_info
, 0, sizeof(*page_info
));
2681 BUG_ON(atomic_read(&rxq
->used
));
2686 static void be_rx_cq_clean(struct be_rx_obj
*rxo
)
2688 struct be_queue_info
*rx_cq
= &rxo
->cq
;
2689 struct be_rx_compl_info
*rxcp
;
2690 struct be_adapter
*adapter
= rxo
->adapter
;
2693 /* Consume pending rx completions.
2694 * Wait for the flush completion (identified by zero num_rcvd)
2695 * to arrive. Notify CQ even when there are no more CQ entries
2696 * for HW to flush partially coalesced CQ entries.
2697 * In Lancer, there is no need to wait for flush compl.
2700 rxcp
= be_rx_compl_get(rxo
);
2702 if (lancer_chip(adapter
))
2705 if (flush_wait
++ > 50 ||
2706 be_check_error(adapter
,
2708 dev_warn(&adapter
->pdev
->dev
,
2709 "did not receive flush compl\n");
2712 be_cq_notify(adapter
, rx_cq
->id
, true, 0);
2715 be_rx_compl_discard(rxo
, rxcp
);
2716 be_cq_notify(adapter
, rx_cq
->id
, false, 1);
2717 if (rxcp
->num_rcvd
== 0)
2722 /* After cleanup, leave the CQ in unarmed state */
2723 be_cq_notify(adapter
, rx_cq
->id
, false, 0);
2726 static void be_tx_compl_clean(struct be_adapter
*adapter
)
2728 struct device
*dev
= &adapter
->pdev
->dev
;
2729 u16 cmpl
= 0, timeo
= 0, num_wrbs
= 0;
2730 struct be_tx_compl_info
*txcp
;
2731 struct be_queue_info
*txq
;
2732 u32 end_idx
, notified_idx
;
2733 struct be_tx_obj
*txo
;
2734 int i
, pending_txqs
;
2736 /* Stop polling for compls when HW has been silent for 10ms */
2738 pending_txqs
= adapter
->num_tx_qs
;
2740 for_all_tx_queues(adapter
, txo
, i
) {
2744 while ((txcp
= be_tx_compl_get(txo
))) {
2746 be_tx_compl_process(adapter
, txo
,
2751 be_cq_notify(adapter
, txo
->cq
.id
, false, cmpl
);
2752 atomic_sub(num_wrbs
, &txq
->used
);
2755 if (!be_is_tx_compl_pending(txo
))
2759 if (pending_txqs
== 0 || ++timeo
> 10 ||
2760 be_check_error(adapter
, BE_ERROR_HW
))
2766 /* Free enqueued TX that was never notified to HW */
2767 for_all_tx_queues(adapter
, txo
, i
) {
2770 if (atomic_read(&txq
->used
)) {
2771 dev_info(dev
, "txq%d: cleaning %d pending tx-wrbs\n",
2772 i
, atomic_read(&txq
->used
));
2773 notified_idx
= txq
->tail
;
2774 end_idx
= txq
->tail
;
2775 index_adv(&end_idx
, atomic_read(&txq
->used
) - 1,
2777 /* Use the tx-compl process logic to handle requests
2778 * that were not sent to the HW.
2780 num_wrbs
= be_tx_compl_process(adapter
, txo
, end_idx
);
2781 atomic_sub(num_wrbs
, &txq
->used
);
2782 BUG_ON(atomic_read(&txq
->used
));
2783 txo
->pend_wrb_cnt
= 0;
2784 /* Since hw was never notified of these requests,
2787 txq
->head
= notified_idx
;
2788 txq
->tail
= notified_idx
;
2793 static void be_evt_queues_destroy(struct be_adapter
*adapter
)
2795 struct be_eq_obj
*eqo
;
2798 for_all_evt_queues(adapter
, eqo
, i
) {
2799 if (eqo
->q
.created
) {
2801 be_cmd_q_destroy(adapter
, &eqo
->q
, QTYPE_EQ
);
2802 napi_hash_del(&eqo
->napi
);
2803 netif_napi_del(&eqo
->napi
);
2804 free_cpumask_var(eqo
->affinity_mask
);
2806 be_queue_free(adapter
, &eqo
->q
);
2810 static int be_evt_queues_create(struct be_adapter
*adapter
)
2812 struct be_queue_info
*eq
;
2813 struct be_eq_obj
*eqo
;
2814 struct be_aic_obj
*aic
;
2817 /* need enough EQs to service both RX and TX queues */
2818 adapter
->num_evt_qs
= min_t(u16
, num_irqs(adapter
),
2819 max(adapter
->cfg_num_rx_irqs
,
2820 adapter
->cfg_num_tx_irqs
));
2822 for_all_evt_queues(adapter
, eqo
, i
) {
2823 int numa_node
= dev_to_node(&adapter
->pdev
->dev
);
2825 aic
= &adapter
->aic_obj
[i
];
2826 eqo
->adapter
= adapter
;
2828 aic
->max_eqd
= BE_MAX_EQD
;
2832 rc
= be_queue_alloc(adapter
, eq
, EVNT_Q_LEN
,
2833 sizeof(struct be_eq_entry
));
2837 rc
= be_cmd_eq_create(adapter
, eqo
);
2841 if (!zalloc_cpumask_var(&eqo
->affinity_mask
, GFP_KERNEL
))
2843 cpumask_set_cpu(cpumask_local_spread(i
, numa_node
),
2844 eqo
->affinity_mask
);
2845 netif_napi_add(adapter
->netdev
, &eqo
->napi
, be_poll
,
2851 static void be_mcc_queues_destroy(struct be_adapter
*adapter
)
2853 struct be_queue_info
*q
;
2855 q
= &adapter
->mcc_obj
.q
;
2857 be_cmd_q_destroy(adapter
, q
, QTYPE_MCCQ
);
2858 be_queue_free(adapter
, q
);
2860 q
= &adapter
->mcc_obj
.cq
;
2862 be_cmd_q_destroy(adapter
, q
, QTYPE_CQ
);
2863 be_queue_free(adapter
, q
);
2866 /* Must be called only after TX qs are created as MCC shares TX EQ */
2867 static int be_mcc_queues_create(struct be_adapter
*adapter
)
2869 struct be_queue_info
*q
, *cq
;
2871 cq
= &adapter
->mcc_obj
.cq
;
2872 if (be_queue_alloc(adapter
, cq
, MCC_CQ_LEN
,
2873 sizeof(struct be_mcc_compl
)))
2876 /* Use the default EQ for MCC completions */
2877 if (be_cmd_cq_create(adapter
, cq
, &mcc_eqo(adapter
)->q
, true, 0))
2880 q
= &adapter
->mcc_obj
.q
;
2881 if (be_queue_alloc(adapter
, q
, MCC_Q_LEN
, sizeof(struct be_mcc_wrb
)))
2882 goto mcc_cq_destroy
;
2884 if (be_cmd_mccq_create(adapter
, q
, cq
))
2890 be_queue_free(adapter
, q
);
2892 be_cmd_q_destroy(adapter
, cq
, QTYPE_CQ
);
2894 be_queue_free(adapter
, cq
);
2899 static void be_tx_queues_destroy(struct be_adapter
*adapter
)
2901 struct be_queue_info
*q
;
2902 struct be_tx_obj
*txo
;
2905 for_all_tx_queues(adapter
, txo
, i
) {
2908 be_cmd_q_destroy(adapter
, q
, QTYPE_TXQ
);
2909 be_queue_free(adapter
, q
);
2913 be_cmd_q_destroy(adapter
, q
, QTYPE_CQ
);
2914 be_queue_free(adapter
, q
);
2918 static int be_tx_qs_create(struct be_adapter
*adapter
)
2920 struct be_queue_info
*cq
;
2921 struct be_tx_obj
*txo
;
2922 struct be_eq_obj
*eqo
;
2925 adapter
->num_tx_qs
= min(adapter
->num_evt_qs
, adapter
->cfg_num_tx_irqs
);
2927 for_all_tx_queues(adapter
, txo
, i
) {
2929 status
= be_queue_alloc(adapter
, cq
, TX_CQ_LEN
,
2930 sizeof(struct be_eth_tx_compl
));
2934 u64_stats_init(&txo
->stats
.sync
);
2935 u64_stats_init(&txo
->stats
.sync_compl
);
2937 /* If num_evt_qs is less than num_tx_qs, then more than
2938 * one txq share an eq
2940 eqo
= &adapter
->eq_obj
[i
% adapter
->num_evt_qs
];
2941 status
= be_cmd_cq_create(adapter
, cq
, &eqo
->q
, false, 3);
2945 status
= be_queue_alloc(adapter
, &txo
->q
, TX_Q_LEN
,
2946 sizeof(struct be_eth_wrb
));
2950 status
= be_cmd_txq_create(adapter
, txo
);
2954 netif_set_xps_queue(adapter
->netdev
, eqo
->affinity_mask
,
2958 dev_info(&adapter
->pdev
->dev
, "created %d TX queue(s)\n",
2959 adapter
->num_tx_qs
);
2963 static void be_rx_cqs_destroy(struct be_adapter
*adapter
)
2965 struct be_queue_info
*q
;
2966 struct be_rx_obj
*rxo
;
2969 for_all_rx_queues(adapter
, rxo
, i
) {
2972 be_cmd_q_destroy(adapter
, q
, QTYPE_CQ
);
2973 be_queue_free(adapter
, q
);
2977 static int be_rx_cqs_create(struct be_adapter
*adapter
)
2979 struct be_queue_info
*eq
, *cq
;
2980 struct be_rx_obj
*rxo
;
2983 adapter
->num_rss_qs
=
2984 min(adapter
->num_evt_qs
, adapter
->cfg_num_rx_irqs
);
2986 /* We'll use RSS only if atleast 2 RSS rings are supported. */
2987 if (adapter
->num_rss_qs
< 2)
2988 adapter
->num_rss_qs
= 0;
2990 adapter
->num_rx_qs
= adapter
->num_rss_qs
+ adapter
->need_def_rxq
;
2992 /* When the interface is not capable of RSS rings (and there is no
2993 * need to create a default RXQ) we'll still need one RXQ
2995 if (adapter
->num_rx_qs
== 0)
2996 adapter
->num_rx_qs
= 1;
2998 adapter
->big_page_size
= (1 << get_order(rx_frag_size
)) * PAGE_SIZE
;
2999 for_all_rx_queues(adapter
, rxo
, i
) {
3000 rxo
->adapter
= adapter
;
3002 rc
= be_queue_alloc(adapter
, cq
, RX_CQ_LEN
,
3003 sizeof(struct be_eth_rx_compl
));
3007 u64_stats_init(&rxo
->stats
.sync
);
3008 eq
= &adapter
->eq_obj
[i
% adapter
->num_evt_qs
].q
;
3009 rc
= be_cmd_cq_create(adapter
, cq
, eq
, false, 3);
3014 dev_info(&adapter
->pdev
->dev
,
3015 "created %d RX queue(s)\n", adapter
->num_rx_qs
);
3019 static irqreturn_t
be_intx(int irq
, void *dev
)
3021 struct be_eq_obj
*eqo
= dev
;
3022 struct be_adapter
*adapter
= eqo
->adapter
;
3025 /* IRQ is not expected when NAPI is scheduled as the EQ
3026 * will not be armed.
3027 * But, this can happen on Lancer INTx where it takes
3028 * a while to de-assert INTx or in BE2 where occasionaly
3029 * an interrupt may be raised even when EQ is unarmed.
3030 * If NAPI is already scheduled, then counting & notifying
3031 * events will orphan them.
3033 if (napi_schedule_prep(&eqo
->napi
)) {
3034 num_evts
= events_get(eqo
);
3035 __napi_schedule(&eqo
->napi
);
3037 eqo
->spurious_intr
= 0;
3039 be_eq_notify(adapter
, eqo
->q
.id
, false, true, num_evts
, 0);
3041 /* Return IRQ_HANDLED only for the the first spurious intr
3042 * after a valid intr to stop the kernel from branding
3043 * this irq as a bad one!
3045 if (num_evts
|| eqo
->spurious_intr
++ == 0)
3051 static irqreturn_t
be_msix(int irq
, void *dev
)
3053 struct be_eq_obj
*eqo
= dev
;
3055 be_eq_notify(eqo
->adapter
, eqo
->q
.id
, false, true, 0, 0);
3056 napi_schedule(&eqo
->napi
);
3060 static inline bool do_gro(struct be_rx_compl_info
*rxcp
)
3062 return (rxcp
->tcpf
&& !rxcp
->err
&& rxcp
->l4_csum
) ? true : false;
3065 static int be_process_rx(struct be_rx_obj
*rxo
, struct napi_struct
*napi
,
3066 int budget
, int polling
)
3068 struct be_adapter
*adapter
= rxo
->adapter
;
3069 struct be_queue_info
*rx_cq
= &rxo
->cq
;
3070 struct be_rx_compl_info
*rxcp
;
3072 u32 frags_consumed
= 0;
3074 for (work_done
= 0; work_done
< budget
; work_done
++) {
3075 rxcp
= be_rx_compl_get(rxo
);
3079 /* Is it a flush compl that has no data */
3080 if (unlikely(rxcp
->num_rcvd
== 0))
3083 /* Discard compl with partial DMA Lancer B0 */
3084 if (unlikely(!rxcp
->pkt_size
)) {
3085 be_rx_compl_discard(rxo
, rxcp
);
3089 /* On BE drop pkts that arrive due to imperfect filtering in
3090 * promiscuous mode on some skews
3092 if (unlikely(rxcp
->port
!= adapter
->port_num
&&
3093 !lancer_chip(adapter
))) {
3094 be_rx_compl_discard(rxo
, rxcp
);
3098 /* Don't do gro when we're busy_polling */
3099 if (do_gro(rxcp
) && polling
!= BUSY_POLLING
)
3100 be_rx_compl_process_gro(rxo
, napi
, rxcp
);
3102 be_rx_compl_process(rxo
, napi
, rxcp
);
3105 frags_consumed
+= rxcp
->num_rcvd
;
3106 be_rx_stats_update(rxo
, rxcp
);
3110 be_cq_notify(adapter
, rx_cq
->id
, true, work_done
);
3112 /* When an rx-obj gets into post_starved state, just
3113 * let be_worker do the posting.
3115 if (atomic_read(&rxo
->q
.used
) < RX_FRAGS_REFILL_WM
&&
3116 !rxo
->rx_post_starved
)
3117 be_post_rx_frags(rxo
, GFP_ATOMIC
,
3118 max_t(u32
, MAX_RX_POST
,
3125 static inline void be_update_tx_err(struct be_tx_obj
*txo
, u8 status
)
3128 case BE_TX_COMP_HDR_PARSE_ERR
:
3129 tx_stats(txo
)->tx_hdr_parse_err
++;
3131 case BE_TX_COMP_NDMA_ERR
:
3132 tx_stats(txo
)->tx_dma_err
++;
3134 case BE_TX_COMP_ACL_ERR
:
3135 tx_stats(txo
)->tx_spoof_check_err
++;
3140 static inline void lancer_update_tx_err(struct be_tx_obj
*txo
, u8 status
)
3143 case LANCER_TX_COMP_LSO_ERR
:
3144 tx_stats(txo
)->tx_tso_err
++;
3146 case LANCER_TX_COMP_HSW_DROP_MAC_ERR
:
3147 case LANCER_TX_COMP_HSW_DROP_VLAN_ERR
:
3148 tx_stats(txo
)->tx_spoof_check_err
++;
3150 case LANCER_TX_COMP_QINQ_ERR
:
3151 tx_stats(txo
)->tx_qinq_err
++;
3153 case LANCER_TX_COMP_PARITY_ERR
:
3154 tx_stats(txo
)->tx_internal_parity_err
++;
3156 case LANCER_TX_COMP_DMA_ERR
:
3157 tx_stats(txo
)->tx_dma_err
++;
3162 static void be_process_tx(struct be_adapter
*adapter
, struct be_tx_obj
*txo
,
3165 int num_wrbs
= 0, work_done
= 0;
3166 struct be_tx_compl_info
*txcp
;
3168 while ((txcp
= be_tx_compl_get(txo
))) {
3169 num_wrbs
+= be_tx_compl_process(adapter
, txo
, txcp
->end_index
);
3173 if (lancer_chip(adapter
))
3174 lancer_update_tx_err(txo
, txcp
->status
);
3176 be_update_tx_err(txo
, txcp
->status
);
3181 be_cq_notify(adapter
, txo
->cq
.id
, true, work_done
);
3182 atomic_sub(num_wrbs
, &txo
->q
.used
);
3184 /* As Tx wrbs have been freed up, wake up netdev queue
3185 * if it was stopped due to lack of tx wrbs. */
3186 if (__netif_subqueue_stopped(adapter
->netdev
, idx
) &&
3187 be_can_txq_wake(txo
)) {
3188 netif_wake_subqueue(adapter
->netdev
, idx
);
3191 u64_stats_update_begin(&tx_stats(txo
)->sync_compl
);
3192 tx_stats(txo
)->tx_compl
+= work_done
;
3193 u64_stats_update_end(&tx_stats(txo
)->sync_compl
);
3197 #ifdef CONFIG_NET_RX_BUSY_POLL
3198 static inline bool be_lock_napi(struct be_eq_obj
*eqo
)
3202 spin_lock(&eqo
->lock
); /* BH is already disabled */
3203 if (eqo
->state
& BE_EQ_LOCKED
) {
3204 WARN_ON(eqo
->state
& BE_EQ_NAPI
);
3205 eqo
->state
|= BE_EQ_NAPI_YIELD
;
3208 eqo
->state
= BE_EQ_NAPI
;
3210 spin_unlock(&eqo
->lock
);
3214 static inline void be_unlock_napi(struct be_eq_obj
*eqo
)
3216 spin_lock(&eqo
->lock
); /* BH is already disabled */
3218 WARN_ON(eqo
->state
& (BE_EQ_POLL
| BE_EQ_NAPI_YIELD
));
3219 eqo
->state
= BE_EQ_IDLE
;
3221 spin_unlock(&eqo
->lock
);
3224 static inline bool be_lock_busy_poll(struct be_eq_obj
*eqo
)
3228 spin_lock_bh(&eqo
->lock
);
3229 if (eqo
->state
& BE_EQ_LOCKED
) {
3230 eqo
->state
|= BE_EQ_POLL_YIELD
;
3233 eqo
->state
|= BE_EQ_POLL
;
3235 spin_unlock_bh(&eqo
->lock
);
3239 static inline void be_unlock_busy_poll(struct be_eq_obj
*eqo
)
3241 spin_lock_bh(&eqo
->lock
);
3243 WARN_ON(eqo
->state
& (BE_EQ_NAPI
));
3244 eqo
->state
= BE_EQ_IDLE
;
3246 spin_unlock_bh(&eqo
->lock
);
3249 static inline void be_enable_busy_poll(struct be_eq_obj
*eqo
)
3251 spin_lock_init(&eqo
->lock
);
3252 eqo
->state
= BE_EQ_IDLE
;
3255 static inline void be_disable_busy_poll(struct be_eq_obj
*eqo
)
3259 /* It's enough to just acquire napi lock on the eqo to stop
3260 * be_busy_poll() from processing any queueus.
3262 while (!be_lock_napi(eqo
))
3268 #else /* CONFIG_NET_RX_BUSY_POLL */
3270 static inline bool be_lock_napi(struct be_eq_obj
*eqo
)
3275 static inline void be_unlock_napi(struct be_eq_obj
*eqo
)
3279 static inline bool be_lock_busy_poll(struct be_eq_obj
*eqo
)
3284 static inline void be_unlock_busy_poll(struct be_eq_obj
*eqo
)
3288 static inline void be_enable_busy_poll(struct be_eq_obj
*eqo
)
3292 static inline void be_disable_busy_poll(struct be_eq_obj
*eqo
)
3295 #endif /* CONFIG_NET_RX_BUSY_POLL */
3297 int be_poll(struct napi_struct
*napi
, int budget
)
3299 struct be_eq_obj
*eqo
= container_of(napi
, struct be_eq_obj
, napi
);
3300 struct be_adapter
*adapter
= eqo
->adapter
;
3301 int max_work
= 0, work
, i
, num_evts
;
3302 struct be_rx_obj
*rxo
;
3303 struct be_tx_obj
*txo
;
3306 num_evts
= events_get(eqo
);
3308 for_all_tx_queues_on_eq(adapter
, eqo
, txo
, i
)
3309 be_process_tx(adapter
, txo
, i
);
3311 if (be_lock_napi(eqo
)) {
3312 /* This loop will iterate twice for EQ0 in which
3313 * completions of the last RXQ (default one) are also processed
3314 * For other EQs the loop iterates only once
3316 for_all_rx_queues_on_eq(adapter
, eqo
, rxo
, i
) {
3317 work
= be_process_rx(rxo
, napi
, budget
, NAPI_POLLING
);
3318 max_work
= max(work
, max_work
);
3320 be_unlock_napi(eqo
);
3325 if (is_mcc_eqo(eqo
))
3326 be_process_mcc(adapter
);
3328 if (max_work
< budget
) {
3329 napi_complete(napi
);
3331 /* Skyhawk EQ_DB has a provision to set the rearm to interrupt
3332 * delay via a delay multiplier encoding value
3334 if (skyhawk_chip(adapter
))
3335 mult_enc
= be_get_eq_delay_mult_enc(eqo
);
3337 be_eq_notify(adapter
, eqo
->q
.id
, true, false, num_evts
,
3340 /* As we'll continue in polling mode, count and clear events */
3341 be_eq_notify(adapter
, eqo
->q
.id
, false, false, num_evts
, 0);
3346 #ifdef CONFIG_NET_RX_BUSY_POLL
3347 static int be_busy_poll(struct napi_struct
*napi
)
3349 struct be_eq_obj
*eqo
= container_of(napi
, struct be_eq_obj
, napi
);
3350 struct be_adapter
*adapter
= eqo
->adapter
;
3351 struct be_rx_obj
*rxo
;
3354 if (!be_lock_busy_poll(eqo
))
3355 return LL_FLUSH_BUSY
;
3357 for_all_rx_queues_on_eq(adapter
, eqo
, rxo
, i
) {
3358 work
= be_process_rx(rxo
, napi
, 4, BUSY_POLLING
);
3363 be_unlock_busy_poll(eqo
);
3368 void be_detect_error(struct be_adapter
*adapter
)
3370 u32 ue_lo
= 0, ue_hi
= 0, ue_lo_mask
= 0, ue_hi_mask
= 0;
3371 u32 sliport_status
= 0, sliport_err1
= 0, sliport_err2
= 0;
3373 struct device
*dev
= &adapter
->pdev
->dev
;
3375 if (be_check_error(adapter
, BE_ERROR_HW
))
3378 if (lancer_chip(adapter
)) {
3379 sliport_status
= ioread32(adapter
->db
+ SLIPORT_STATUS_OFFSET
);
3380 if (sliport_status
& SLIPORT_STATUS_ERR_MASK
) {
3381 be_set_error(adapter
, BE_ERROR_UE
);
3382 sliport_err1
= ioread32(adapter
->db
+
3383 SLIPORT_ERROR1_OFFSET
);
3384 sliport_err2
= ioread32(adapter
->db
+
3385 SLIPORT_ERROR2_OFFSET
);
3386 /* Do not log error messages if its a FW reset */
3387 if (sliport_err1
== SLIPORT_ERROR_FW_RESET1
&&
3388 sliport_err2
== SLIPORT_ERROR_FW_RESET2
) {
3389 dev_info(dev
, "Firmware update in progress\n");
3391 dev_err(dev
, "Error detected in the card\n");
3392 dev_err(dev
, "ERR: sliport status 0x%x\n",
3394 dev_err(dev
, "ERR: sliport error1 0x%x\n",
3396 dev_err(dev
, "ERR: sliport error2 0x%x\n",
3401 ue_lo
= ioread32(adapter
->pcicfg
+ PCICFG_UE_STATUS_LOW
);
3402 ue_hi
= ioread32(adapter
->pcicfg
+ PCICFG_UE_STATUS_HIGH
);
3403 ue_lo_mask
= ioread32(adapter
->pcicfg
+
3404 PCICFG_UE_STATUS_LOW_MASK
);
3405 ue_hi_mask
= ioread32(adapter
->pcicfg
+
3406 PCICFG_UE_STATUS_HI_MASK
);
3408 ue_lo
= (ue_lo
& ~ue_lo_mask
);
3409 ue_hi
= (ue_hi
& ~ue_hi_mask
);
3411 /* On certain platforms BE hardware can indicate spurious UEs.
3412 * Allow HW to stop working completely in case of a real UE.
3413 * Hence not setting the hw_error for UE detection.
3416 if (ue_lo
|| ue_hi
) {
3417 dev_err(dev
, "Error detected in the adapter");
3418 if (skyhawk_chip(adapter
))
3419 be_set_error(adapter
, BE_ERROR_UE
);
3421 for (i
= 0; ue_lo
; ue_lo
>>= 1, i
++) {
3423 dev_err(dev
, "UE: %s bit set\n",
3424 ue_status_low_desc
[i
]);
3426 for (i
= 0; ue_hi
; ue_hi
>>= 1, i
++) {
3428 dev_err(dev
, "UE: %s bit set\n",
3429 ue_status_hi_desc
[i
]);
3435 static void be_msix_disable(struct be_adapter
*adapter
)
3437 if (msix_enabled(adapter
)) {
3438 pci_disable_msix(adapter
->pdev
);
3439 adapter
->num_msix_vec
= 0;
3440 adapter
->num_msix_roce_vec
= 0;
3444 static int be_msix_enable(struct be_adapter
*adapter
)
3446 unsigned int i
, max_roce_eqs
;
3447 struct device
*dev
= &adapter
->pdev
->dev
;
3450 /* If RoCE is supported, program the max number of vectors that
3451 * could be used for NIC and RoCE, else, just program the number
3452 * we'll use initially.
3454 if (be_roce_supported(adapter
)) {
3456 be_max_func_eqs(adapter
) - be_max_nic_eqs(adapter
);
3457 max_roce_eqs
= min(max_roce_eqs
, num_online_cpus());
3458 num_vec
= be_max_any_irqs(adapter
) + max_roce_eqs
;
3460 num_vec
= max(adapter
->cfg_num_rx_irqs
,
3461 adapter
->cfg_num_tx_irqs
);
3464 for (i
= 0; i
< num_vec
; i
++)
3465 adapter
->msix_entries
[i
].entry
= i
;
3467 num_vec
= pci_enable_msix_range(adapter
->pdev
, adapter
->msix_entries
,
3468 MIN_MSIX_VECTORS
, num_vec
);
3472 if (be_roce_supported(adapter
) && num_vec
> MIN_MSIX_VECTORS
) {
3473 adapter
->num_msix_roce_vec
= num_vec
/ 2;
3474 dev_info(dev
, "enabled %d MSI-x vector(s) for RoCE\n",
3475 adapter
->num_msix_roce_vec
);
3478 adapter
->num_msix_vec
= num_vec
- adapter
->num_msix_roce_vec
;
3480 dev_info(dev
, "enabled %d MSI-x vector(s) for NIC\n",
3481 adapter
->num_msix_vec
);
3485 dev_warn(dev
, "MSIx enable failed\n");
3487 /* INTx is not supported in VFs, so fail probe if enable_msix fails */
3488 if (be_virtfn(adapter
))
3493 static inline int be_msix_vec_get(struct be_adapter
*adapter
,
3494 struct be_eq_obj
*eqo
)
3496 return adapter
->msix_entries
[eqo
->msix_idx
].vector
;
3499 static int be_msix_register(struct be_adapter
*adapter
)
3501 struct net_device
*netdev
= adapter
->netdev
;
3502 struct be_eq_obj
*eqo
;
3505 for_all_evt_queues(adapter
, eqo
, i
) {
3506 sprintf(eqo
->desc
, "%s-q%d", netdev
->name
, i
);
3507 vec
= be_msix_vec_get(adapter
, eqo
);
3508 status
= request_irq(vec
, be_msix
, 0, eqo
->desc
, eqo
);
3512 irq_set_affinity_hint(vec
, eqo
->affinity_mask
);
3517 for (i
--; i
>= 0; i
--) {
3518 eqo
= &adapter
->eq_obj
[i
];
3519 free_irq(be_msix_vec_get(adapter
, eqo
), eqo
);
3521 dev_warn(&adapter
->pdev
->dev
, "MSIX Request IRQ failed - err %d\n",
3523 be_msix_disable(adapter
);
3527 static int be_irq_register(struct be_adapter
*adapter
)
3529 struct net_device
*netdev
= adapter
->netdev
;
3532 if (msix_enabled(adapter
)) {
3533 status
= be_msix_register(adapter
);
3536 /* INTx is not supported for VF */
3537 if (be_virtfn(adapter
))
3541 /* INTx: only the first EQ is used */
3542 netdev
->irq
= adapter
->pdev
->irq
;
3543 status
= request_irq(netdev
->irq
, be_intx
, IRQF_SHARED
, netdev
->name
,
3544 &adapter
->eq_obj
[0]);
3546 dev_err(&adapter
->pdev
->dev
,
3547 "INTx request IRQ failed - err %d\n", status
);
3551 adapter
->isr_registered
= true;
3555 static void be_irq_unregister(struct be_adapter
*adapter
)
3557 struct net_device
*netdev
= adapter
->netdev
;
3558 struct be_eq_obj
*eqo
;
3561 if (!adapter
->isr_registered
)
3565 if (!msix_enabled(adapter
)) {
3566 free_irq(netdev
->irq
, &adapter
->eq_obj
[0]);
3571 for_all_evt_queues(adapter
, eqo
, i
) {
3572 vec
= be_msix_vec_get(adapter
, eqo
);
3573 irq_set_affinity_hint(vec
, NULL
);
3578 adapter
->isr_registered
= false;
3581 static void be_rx_qs_destroy(struct be_adapter
*adapter
)
3583 struct rss_info
*rss
= &adapter
->rss_info
;
3584 struct be_queue_info
*q
;
3585 struct be_rx_obj
*rxo
;
3588 for_all_rx_queues(adapter
, rxo
, i
) {
3591 /* If RXQs are destroyed while in an "out of buffer"
3592 * state, there is a possibility of an HW stall on
3593 * Lancer. So, post 64 buffers to each queue to relieve
3594 * the "out of buffer" condition.
3595 * Make sure there's space in the RXQ before posting.
3597 if (lancer_chip(adapter
)) {
3598 be_rx_cq_clean(rxo
);
3599 if (atomic_read(&q
->used
) == 0)
3600 be_post_rx_frags(rxo
, GFP_KERNEL
,
3604 be_cmd_rxq_destroy(adapter
, q
);
3605 be_rx_cq_clean(rxo
);
3608 be_queue_free(adapter
, q
);
3611 if (rss
->rss_flags
) {
3612 rss
->rss_flags
= RSS_ENABLE_NONE
;
3613 be_cmd_rss_config(adapter
, rss
->rsstable
, rss
->rss_flags
,
3614 128, rss
->rss_hkey
);
3618 static void be_disable_if_filters(struct be_adapter
*adapter
)
3620 be_dev_mac_del(adapter
, adapter
->pmac_id
[0]);
3621 be_clear_uc_list(adapter
);
3622 be_clear_mc_list(adapter
);
3624 /* The IFACE flags are enabled in the open path and cleared
3625 * in the close path. When a VF gets detached from the host and
3626 * assigned to a VM the following happens:
3627 * - VF's IFACE flags get cleared in the detach path
3628 * - IFACE create is issued by the VF in the attach path
3629 * Due to a bug in the BE3/Skyhawk-R FW
3630 * (Lancer FW doesn't have the bug), the IFACE capability flags
3631 * specified along with the IFACE create cmd issued by a VF are not
3632 * honoured by FW. As a consequence, if a *new* driver
3633 * (that enables/disables IFACE flags in open/close)
3634 * is loaded in the host and an *old* driver is * used by a VM/VF,
3635 * the IFACE gets created *without* the needed flags.
3636 * To avoid this, disable RX-filter flags only for Lancer.
3638 if (lancer_chip(adapter
)) {
3639 be_cmd_rx_filter(adapter
, BE_IF_ALL_FILT_FLAGS
, OFF
);
3640 adapter
->if_flags
&= ~BE_IF_ALL_FILT_FLAGS
;
3644 static int be_close(struct net_device
*netdev
)
3646 struct be_adapter
*adapter
= netdev_priv(netdev
);
3647 struct be_eq_obj
*eqo
;
3650 /* This protection is needed as be_close() may be called even when the
3651 * adapter is in cleared state (after eeh perm failure)
3653 if (!(adapter
->flags
& BE_FLAGS_SETUP_DONE
))
3656 /* Before attempting cleanup ensure all the pending cmds in the
3657 * config_wq have finished execution
3659 flush_workqueue(be_wq
);
3661 be_disable_if_filters(adapter
);
3663 if (adapter
->flags
& BE_FLAGS_NAPI_ENABLED
) {
3664 for_all_evt_queues(adapter
, eqo
, i
) {
3665 napi_disable(&eqo
->napi
);
3666 be_disable_busy_poll(eqo
);
3668 adapter
->flags
&= ~BE_FLAGS_NAPI_ENABLED
;
3671 be_async_mcc_disable(adapter
);
3673 /* Wait for all pending tx completions to arrive so that
3674 * all tx skbs are freed.
3676 netif_tx_disable(netdev
);
3677 be_tx_compl_clean(adapter
);
3679 be_rx_qs_destroy(adapter
);
3681 for_all_evt_queues(adapter
, eqo
, i
) {
3682 if (msix_enabled(adapter
))
3683 synchronize_irq(be_msix_vec_get(adapter
, eqo
));
3685 synchronize_irq(netdev
->irq
);
3689 be_irq_unregister(adapter
);
3694 static int be_rx_qs_create(struct be_adapter
*adapter
)
3696 struct rss_info
*rss
= &adapter
->rss_info
;
3697 u8 rss_key
[RSS_HASH_KEY_LEN
];
3698 struct be_rx_obj
*rxo
;
3701 for_all_rx_queues(adapter
, rxo
, i
) {
3702 rc
= be_queue_alloc(adapter
, &rxo
->q
, RX_Q_LEN
,
3703 sizeof(struct be_eth_rx_d
));
3708 if (adapter
->need_def_rxq
|| !adapter
->num_rss_qs
) {
3709 rxo
= default_rxo(adapter
);
3710 rc
= be_cmd_rxq_create(adapter
, &rxo
->q
, rxo
->cq
.id
,
3711 rx_frag_size
, adapter
->if_handle
,
3712 false, &rxo
->rss_id
);
3717 for_all_rss_queues(adapter
, rxo
, i
) {
3718 rc
= be_cmd_rxq_create(adapter
, &rxo
->q
, rxo
->cq
.id
,
3719 rx_frag_size
, adapter
->if_handle
,
3720 true, &rxo
->rss_id
);
3725 if (be_multi_rxq(adapter
)) {
3726 for (j
= 0; j
< RSS_INDIR_TABLE_LEN
; j
+= adapter
->num_rss_qs
) {
3727 for_all_rss_queues(adapter
, rxo
, i
) {
3728 if ((j
+ i
) >= RSS_INDIR_TABLE_LEN
)
3730 rss
->rsstable
[j
+ i
] = rxo
->rss_id
;
3731 rss
->rss_queue
[j
+ i
] = i
;
3734 rss
->rss_flags
= RSS_ENABLE_TCP_IPV4
| RSS_ENABLE_IPV4
|
3735 RSS_ENABLE_TCP_IPV6
| RSS_ENABLE_IPV6
;
3737 if (!BEx_chip(adapter
))
3738 rss
->rss_flags
|= RSS_ENABLE_UDP_IPV4
|
3739 RSS_ENABLE_UDP_IPV6
;
3741 netdev_rss_key_fill(rss_key
, RSS_HASH_KEY_LEN
);
3742 rc
= be_cmd_rss_config(adapter
, rss
->rsstable
, rss
->rss_flags
,
3743 RSS_INDIR_TABLE_LEN
, rss_key
);
3745 rss
->rss_flags
= RSS_ENABLE_NONE
;
3749 memcpy(rss
->rss_hkey
, rss_key
, RSS_HASH_KEY_LEN
);
3751 /* Disable RSS, if only default RX Q is created */
3752 rss
->rss_flags
= RSS_ENABLE_NONE
;
3756 /* Post 1 less than RXQ-len to avoid head being equal to tail,
3757 * which is a queue empty condition
3759 for_all_rx_queues(adapter
, rxo
, i
)
3760 be_post_rx_frags(rxo
, GFP_KERNEL
, RX_Q_LEN
- 1);
3765 static int be_enable_if_filters(struct be_adapter
*adapter
)
3769 status
= be_cmd_rx_filter(adapter
, BE_IF_FILT_FLAGS_BASIC
, ON
);
3773 /* For BE3 VFs, the PF programs the initial MAC address */
3774 if (!(BEx_chip(adapter
) && be_virtfn(adapter
))) {
3775 status
= be_dev_mac_add(adapter
, adapter
->netdev
->dev_addr
);
3778 ether_addr_copy(adapter
->dev_mac
, adapter
->netdev
->dev_addr
);
3781 if (adapter
->vlans_added
)
3782 be_vid_config(adapter
);
3784 __be_set_rx_mode(adapter
);
3789 static int be_open(struct net_device
*netdev
)
3791 struct be_adapter
*adapter
= netdev_priv(netdev
);
3792 struct be_eq_obj
*eqo
;
3793 struct be_rx_obj
*rxo
;
3794 struct be_tx_obj
*txo
;
3798 status
= be_rx_qs_create(adapter
);
3802 status
= be_enable_if_filters(adapter
);
3806 status
= be_irq_register(adapter
);
3810 for_all_rx_queues(adapter
, rxo
, i
)
3811 be_cq_notify(adapter
, rxo
->cq
.id
, true, 0);
3813 for_all_tx_queues(adapter
, txo
, i
)
3814 be_cq_notify(adapter
, txo
->cq
.id
, true, 0);
3816 be_async_mcc_enable(adapter
);
3818 for_all_evt_queues(adapter
, eqo
, i
) {
3819 napi_enable(&eqo
->napi
);
3820 be_enable_busy_poll(eqo
);
3821 be_eq_notify(adapter
, eqo
->q
.id
, true, true, 0, 0);
3823 adapter
->flags
|= BE_FLAGS_NAPI_ENABLED
;
3825 status
= be_cmd_link_status_query(adapter
, NULL
, &link_status
, 0);
3827 be_link_status_update(adapter
, link_status
);
3829 netif_tx_start_all_queues(netdev
);
3830 if (skyhawk_chip(adapter
))
3831 udp_tunnel_get_rx_info(netdev
);
3835 be_close(adapter
->netdev
);
3839 static void be_vf_eth_addr_generate(struct be_adapter
*adapter
, u8
*mac
)
3843 addr
= jhash(adapter
->netdev
->dev_addr
, ETH_ALEN
, 0);
3845 mac
[5] = (u8
)(addr
& 0xFF);
3846 mac
[4] = (u8
)((addr
>> 8) & 0xFF);
3847 mac
[3] = (u8
)((addr
>> 16) & 0xFF);
3848 /* Use the OUI from the current MAC address */
3849 memcpy(mac
, adapter
->netdev
->dev_addr
, 3);
3853 * Generate a seed MAC address from the PF MAC Address using jhash.
3854 * MAC Address for VFs are assigned incrementally starting from the seed.
3855 * These addresses are programmed in the ASIC by the PF and the VF driver
3856 * queries for the MAC address during its probe.
3858 static int be_vf_eth_addr_config(struct be_adapter
*adapter
)
3863 struct be_vf_cfg
*vf_cfg
;
3865 be_vf_eth_addr_generate(adapter
, mac
);
3867 for_all_vfs(adapter
, vf_cfg
, vf
) {
3868 if (BEx_chip(adapter
))
3869 status
= be_cmd_pmac_add(adapter
, mac
,
3871 &vf_cfg
->pmac_id
, vf
+ 1);
3873 status
= be_cmd_set_mac(adapter
, mac
, vf_cfg
->if_handle
,
3877 dev_err(&adapter
->pdev
->dev
,
3878 "Mac address assignment failed for VF %d\n",
3881 memcpy(vf_cfg
->mac_addr
, mac
, ETH_ALEN
);
3888 static int be_vfs_mac_query(struct be_adapter
*adapter
)
3892 struct be_vf_cfg
*vf_cfg
;
3894 for_all_vfs(adapter
, vf_cfg
, vf
) {
3895 status
= be_cmd_get_active_mac(adapter
, vf_cfg
->pmac_id
,
3896 mac
, vf_cfg
->if_handle
,
3900 memcpy(vf_cfg
->mac_addr
, mac
, ETH_ALEN
);
3905 static void be_vf_clear(struct be_adapter
*adapter
)
3907 struct be_vf_cfg
*vf_cfg
;
3910 if (pci_vfs_assigned(adapter
->pdev
)) {
3911 dev_warn(&adapter
->pdev
->dev
,
3912 "VFs are assigned to VMs: not disabling VFs\n");
3916 pci_disable_sriov(adapter
->pdev
);
3918 for_all_vfs(adapter
, vf_cfg
, vf
) {
3919 if (BEx_chip(adapter
))
3920 be_cmd_pmac_del(adapter
, vf_cfg
->if_handle
,
3921 vf_cfg
->pmac_id
, vf
+ 1);
3923 be_cmd_set_mac(adapter
, NULL
, vf_cfg
->if_handle
,
3926 be_cmd_if_destroy(adapter
, vf_cfg
->if_handle
, vf
+ 1);
3929 if (BE3_chip(adapter
))
3930 be_cmd_set_hsw_config(adapter
, 0, 0,
3932 PORT_FWD_TYPE_PASSTHRU
, 0);
3934 kfree(adapter
->vf_cfg
);
3935 adapter
->num_vfs
= 0;
3936 adapter
->flags
&= ~BE_FLAGS_SRIOV_ENABLED
;
3939 static void be_clear_queues(struct be_adapter
*adapter
)
3941 be_mcc_queues_destroy(adapter
);
3942 be_rx_cqs_destroy(adapter
);
3943 be_tx_queues_destroy(adapter
);
3944 be_evt_queues_destroy(adapter
);
3947 static void be_cancel_worker(struct be_adapter
*adapter
)
3949 if (adapter
->flags
& BE_FLAGS_WORKER_SCHEDULED
) {
3950 cancel_delayed_work_sync(&adapter
->work
);
3951 adapter
->flags
&= ~BE_FLAGS_WORKER_SCHEDULED
;
3955 static void be_cancel_err_detection(struct be_adapter
*adapter
)
3957 struct be_error_recovery
*err_rec
= &adapter
->error_recovery
;
3959 if (!be_err_recovery_workq
)
3962 if (adapter
->flags
& BE_FLAGS_ERR_DETECTION_SCHEDULED
) {
3963 cancel_delayed_work_sync(&err_rec
->err_detection_work
);
3964 adapter
->flags
&= ~BE_FLAGS_ERR_DETECTION_SCHEDULED
;
3968 static void be_disable_vxlan_offloads(struct be_adapter
*adapter
)
3970 struct net_device
*netdev
= adapter
->netdev
;
3972 if (adapter
->flags
& BE_FLAGS_VXLAN_OFFLOADS
)
3973 be_cmd_manage_iface(adapter
, adapter
->if_handle
,
3974 OP_CONVERT_TUNNEL_TO_NORMAL
);
3976 if (adapter
->vxlan_port
)
3977 be_cmd_set_vxlan_port(adapter
, 0);
3979 adapter
->flags
&= ~BE_FLAGS_VXLAN_OFFLOADS
;
3980 adapter
->vxlan_port
= 0;
3982 netdev
->hw_enc_features
= 0;
3983 netdev
->hw_features
&= ~(NETIF_F_GSO_UDP_TUNNEL
);
3984 netdev
->features
&= ~(NETIF_F_GSO_UDP_TUNNEL
);
3987 static void be_calculate_vf_res(struct be_adapter
*adapter
, u16 num_vfs
,
3988 struct be_resources
*vft_res
)
3990 struct be_resources res
= adapter
->pool_res
;
3991 u32 vf_if_cap_flags
= res
.vf_if_cap_flags
;
3992 struct be_resources res_mod
= {0};
3995 /* Distribute the queue resources among the PF and it's VFs */
3997 /* Divide the rx queues evenly among the VFs and the PF, capped
3998 * at VF-EQ-count. Any remainder queues belong to the PF.
4000 num_vf_qs
= min(SH_VF_MAX_NIC_EQS
,
4001 res
.max_rss_qs
/ (num_vfs
+ 1));
4003 /* Skyhawk-R chip supports only MAX_PORT_RSS_TABLES
4004 * RSS Tables per port. Provide RSS on VFs, only if number of
4005 * VFs requested is less than it's PF Pool's RSS Tables limit.
4007 if (num_vfs
>= be_max_pf_pool_rss_tables(adapter
))
4011 /* Resource with fields set to all '1's by GET_PROFILE_CONFIG cmd,
4012 * which are modifiable using SET_PROFILE_CONFIG cmd.
4014 be_cmd_get_profile_config(adapter
, &res_mod
, NULL
, ACTIVE_PROFILE_TYPE
,
4015 RESOURCE_MODIFIABLE
, 0);
4017 /* If RSS IFACE capability flags are modifiable for a VF, set the
4018 * capability flag as valid and set RSS and DEFQ_RSS IFACE flags if
4019 * more than 1 RSSQ is available for a VF.
4020 * Otherwise, provision only 1 queue pair for VF.
4022 if (res_mod
.vf_if_cap_flags
& BE_IF_FLAGS_RSS
) {
4023 vft_res
->flags
|= BIT(IF_CAPS_FLAGS_VALID_SHIFT
);
4024 if (num_vf_qs
> 1) {
4025 vf_if_cap_flags
|= BE_IF_FLAGS_RSS
;
4026 if (res
.if_cap_flags
& BE_IF_FLAGS_DEFQ_RSS
)
4027 vf_if_cap_flags
|= BE_IF_FLAGS_DEFQ_RSS
;
4029 vf_if_cap_flags
&= ~(BE_IF_FLAGS_RSS
|
4030 BE_IF_FLAGS_DEFQ_RSS
);
4036 if (res_mod
.vf_if_cap_flags
& BE_IF_FLAGS_VLAN_PROMISCUOUS
) {
4037 vft_res
->flags
|= BIT(IF_CAPS_FLAGS_VALID_SHIFT
);
4038 vf_if_cap_flags
&= ~BE_IF_FLAGS_VLAN_PROMISCUOUS
;
4041 vft_res
->vf_if_cap_flags
= vf_if_cap_flags
;
4042 vft_res
->max_rx_qs
= num_vf_qs
;
4043 vft_res
->max_rss_qs
= num_vf_qs
;
4044 vft_res
->max_tx_qs
= res
.max_tx_qs
/ (num_vfs
+ 1);
4045 vft_res
->max_cq_count
= res
.max_cq_count
/ (num_vfs
+ 1);
4047 /* Distribute unicast MACs, VLANs, IFACE count and MCCQ count equally
4048 * among the PF and it's VFs, if the fields are changeable
4050 if (res_mod
.max_uc_mac
== FIELD_MODIFIABLE
)
4051 vft_res
->max_uc_mac
= res
.max_uc_mac
/ (num_vfs
+ 1);
4053 if (res_mod
.max_vlans
== FIELD_MODIFIABLE
)
4054 vft_res
->max_vlans
= res
.max_vlans
/ (num_vfs
+ 1);
4056 if (res_mod
.max_iface_count
== FIELD_MODIFIABLE
)
4057 vft_res
->max_iface_count
= res
.max_iface_count
/ (num_vfs
+ 1);
4059 if (res_mod
.max_mcc_count
== FIELD_MODIFIABLE
)
4060 vft_res
->max_mcc_count
= res
.max_mcc_count
/ (num_vfs
+ 1);
4063 static void be_if_destroy(struct be_adapter
*adapter
)
4065 be_cmd_if_destroy(adapter
, adapter
->if_handle
, 0);
4067 kfree(adapter
->pmac_id
);
4068 adapter
->pmac_id
= NULL
;
4070 kfree(adapter
->mc_list
);
4071 adapter
->mc_list
= NULL
;
4073 kfree(adapter
->uc_list
);
4074 adapter
->uc_list
= NULL
;
4077 static int be_clear(struct be_adapter
*adapter
)
4079 struct pci_dev
*pdev
= adapter
->pdev
;
4080 struct be_resources vft_res
= {0};
4082 be_cancel_worker(adapter
);
4084 flush_workqueue(be_wq
);
4086 if (sriov_enabled(adapter
))
4087 be_vf_clear(adapter
);
4089 /* Re-configure FW to distribute resources evenly across max-supported
4090 * number of VFs, only when VFs are not already enabled.
4092 if (skyhawk_chip(adapter
) && be_physfn(adapter
) &&
4093 !pci_vfs_assigned(pdev
)) {
4094 be_calculate_vf_res(adapter
,
4095 pci_sriov_get_totalvfs(pdev
),
4097 be_cmd_set_sriov_config(adapter
, adapter
->pool_res
,
4098 pci_sriov_get_totalvfs(pdev
),
4102 be_disable_vxlan_offloads(adapter
);
4104 be_if_destroy(adapter
);
4106 be_clear_queues(adapter
);
4108 be_msix_disable(adapter
);
4109 adapter
->flags
&= ~BE_FLAGS_SETUP_DONE
;
4113 static int be_vfs_if_create(struct be_adapter
*adapter
)
4115 struct be_resources res
= {0};
4116 u32 cap_flags
, en_flags
, vf
;
4117 struct be_vf_cfg
*vf_cfg
;
4120 /* If a FW profile exists, then cap_flags are updated */
4121 cap_flags
= BE_VF_IF_EN_FLAGS
;
4123 for_all_vfs(adapter
, vf_cfg
, vf
) {
4124 if (!BE3_chip(adapter
)) {
4125 status
= be_cmd_get_profile_config(adapter
, &res
, NULL
,
4126 ACTIVE_PROFILE_TYPE
,
4130 cap_flags
= res
.if_cap_flags
;
4131 /* Prevent VFs from enabling VLAN promiscuous
4134 cap_flags
&= ~BE_IF_FLAGS_VLAN_PROMISCUOUS
;
4138 /* PF should enable IF flags during proxy if_create call */
4139 en_flags
= cap_flags
& BE_VF_IF_EN_FLAGS
;
4140 status
= be_cmd_if_create(adapter
, cap_flags
, en_flags
,
4141 &vf_cfg
->if_handle
, vf
+ 1);
4149 static int be_vf_setup_init(struct be_adapter
*adapter
)
4151 struct be_vf_cfg
*vf_cfg
;
4154 adapter
->vf_cfg
= kcalloc(adapter
->num_vfs
, sizeof(*vf_cfg
),
4156 if (!adapter
->vf_cfg
)
4159 for_all_vfs(adapter
, vf_cfg
, vf
) {
4160 vf_cfg
->if_handle
= -1;
4161 vf_cfg
->pmac_id
= -1;
4166 static int be_vf_setup(struct be_adapter
*adapter
)
4168 struct device
*dev
= &adapter
->pdev
->dev
;
4169 struct be_vf_cfg
*vf_cfg
;
4170 int status
, old_vfs
, vf
;
4173 old_vfs
= pci_num_vf(adapter
->pdev
);
4175 status
= be_vf_setup_init(adapter
);
4180 for_all_vfs(adapter
, vf_cfg
, vf
) {
4181 status
= be_cmd_get_if_id(adapter
, vf_cfg
, vf
);
4186 status
= be_vfs_mac_query(adapter
);
4190 status
= be_vfs_if_create(adapter
);
4194 status
= be_vf_eth_addr_config(adapter
);
4199 for_all_vfs(adapter
, vf_cfg
, vf
) {
4200 /* Allow VFs to programs MAC/VLAN filters */
4201 status
= be_cmd_get_fn_privileges(adapter
, &vf_cfg
->privileges
,
4203 if (!status
&& !(vf_cfg
->privileges
& BE_PRIV_FILTMGMT
)) {
4204 status
= be_cmd_set_fn_privileges(adapter
,
4205 vf_cfg
->privileges
|
4209 vf_cfg
->privileges
|= BE_PRIV_FILTMGMT
;
4210 dev_info(dev
, "VF%d has FILTMGMT privilege\n",
4215 /* Allow full available bandwidth */
4217 be_cmd_config_qos(adapter
, 0, 0, vf
+ 1);
4219 status
= be_cmd_get_hsw_config(adapter
, NULL
, vf
+ 1,
4220 vf_cfg
->if_handle
, NULL
,
4223 vf_cfg
->spoofchk
= spoofchk
;
4226 be_cmd_enable_vf(adapter
, vf
+ 1);
4227 be_cmd_set_logical_link_config(adapter
,
4228 IFLA_VF_LINK_STATE_AUTO
,
4234 status
= pci_enable_sriov(adapter
->pdev
, adapter
->num_vfs
);
4236 dev_err(dev
, "SRIOV enable failed\n");
4237 adapter
->num_vfs
= 0;
4242 if (BE3_chip(adapter
)) {
4243 /* On BE3, enable VEB only when SRIOV is enabled */
4244 status
= be_cmd_set_hsw_config(adapter
, 0, 0,
4246 PORT_FWD_TYPE_VEB
, 0);
4251 adapter
->flags
|= BE_FLAGS_SRIOV_ENABLED
;
4254 dev_err(dev
, "VF setup failed\n");
4255 be_vf_clear(adapter
);
4259 /* Converting function_mode bits on BE3 to SH mc_type enums */
4261 static u8
be_convert_mc_type(u32 function_mode
)
4263 if (function_mode
& VNIC_MODE
&& function_mode
& QNQ_MODE
)
4265 else if (function_mode
& QNQ_MODE
)
4267 else if (function_mode
& VNIC_MODE
)
4269 else if (function_mode
& UMC_ENABLED
)
4275 /* On BE2/BE3 FW does not suggest the supported limits */
4276 static void BEx_get_resources(struct be_adapter
*adapter
,
4277 struct be_resources
*res
)
4279 bool use_sriov
= adapter
->num_vfs
? 1 : 0;
4281 if (be_physfn(adapter
))
4282 res
->max_uc_mac
= BE_UC_PMAC_COUNT
;
4284 res
->max_uc_mac
= BE_VF_UC_PMAC_COUNT
;
4286 adapter
->mc_type
= be_convert_mc_type(adapter
->function_mode
);
4288 if (be_is_mc(adapter
)) {
4289 /* Assuming that there are 4 channels per port,
4290 * when multi-channel is enabled
4292 if (be_is_qnq_mode(adapter
))
4293 res
->max_vlans
= BE_NUM_VLANS_SUPPORTED
/8;
4295 /* In a non-qnq multichannel mode, the pvid
4296 * takes up one vlan entry
4298 res
->max_vlans
= (BE_NUM_VLANS_SUPPORTED
/ 4) - 1;
4300 res
->max_vlans
= BE_NUM_VLANS_SUPPORTED
;
4303 res
->max_mcast_mac
= BE_MAX_MC
;
4305 /* 1) For BE3 1Gb ports, FW does not support multiple TXQs
4306 * 2) Create multiple TX rings on a BE3-R multi-channel interface
4307 * *only* if it is RSS-capable.
4309 if (BE2_chip(adapter
) || use_sriov
|| (adapter
->port_num
> 1) ||
4310 be_virtfn(adapter
) ||
4311 (be_is_mc(adapter
) &&
4312 !(adapter
->function_caps
& BE_FUNCTION_CAPS_RSS
))) {
4314 } else if (adapter
->function_caps
& BE_FUNCTION_CAPS_SUPER_NIC
) {
4315 struct be_resources super_nic_res
= {0};
4317 /* On a SuperNIC profile, the driver needs to use the
4318 * GET_PROFILE_CONFIG cmd to query the per-function TXQ limits
4320 be_cmd_get_profile_config(adapter
, &super_nic_res
, NULL
,
4321 ACTIVE_PROFILE_TYPE
, RESOURCE_LIMITS
,
4323 /* Some old versions of BE3 FW don't report max_tx_qs value */
4324 res
->max_tx_qs
= super_nic_res
.max_tx_qs
? : BE3_MAX_TX_QS
;
4326 res
->max_tx_qs
= BE3_MAX_TX_QS
;
4329 if ((adapter
->function_caps
& BE_FUNCTION_CAPS_RSS
) &&
4330 !use_sriov
&& be_physfn(adapter
))
4331 res
->max_rss_qs
= (adapter
->be3_native
) ?
4332 BE3_MAX_RSS_QS
: BE2_MAX_RSS_QS
;
4333 res
->max_rx_qs
= res
->max_rss_qs
+ 1;
4335 if (be_physfn(adapter
))
4336 res
->max_evt_qs
= (be_max_vfs(adapter
) > 0) ?
4337 BE3_SRIOV_MAX_EVT_QS
: BE3_MAX_EVT_QS
;
4339 res
->max_evt_qs
= 1;
4341 res
->if_cap_flags
= BE_IF_CAP_FLAGS_WANT
;
4342 res
->if_cap_flags
&= ~BE_IF_FLAGS_DEFQ_RSS
;
4343 if (!(adapter
->function_caps
& BE_FUNCTION_CAPS_RSS
))
4344 res
->if_cap_flags
&= ~BE_IF_FLAGS_RSS
;
4347 static void be_setup_init(struct be_adapter
*adapter
)
4349 adapter
->vlan_prio_bmap
= 0xff;
4350 adapter
->phy
.link_speed
= -1;
4351 adapter
->if_handle
= -1;
4352 adapter
->be3_native
= false;
4353 adapter
->if_flags
= 0;
4354 adapter
->phy_state
= BE_UNKNOWN_PHY_STATE
;
4355 if (be_physfn(adapter
))
4356 adapter
->cmd_privileges
= MAX_PRIVILEGES
;
4358 adapter
->cmd_privileges
= MIN_PRIVILEGES
;
4361 /* HW supports only MAX_PORT_RSS_TABLES RSS Policy Tables per port.
4362 * However, this HW limitation is not exposed to the host via any SLI cmd.
4363 * As a result, in the case of SRIOV and in particular multi-partition configs
4364 * the driver needs to calcuate a proportional share of RSS Tables per PF-pool
4365 * for distribution between the VFs. This self-imposed limit will determine the
4366 * no: of VFs for which RSS can be enabled.
4368 void be_calculate_pf_pool_rss_tables(struct be_adapter
*adapter
)
4370 struct be_port_resources port_res
= {0};
4371 u8 rss_tables_on_port
;
4372 u16 max_vfs
= be_max_vfs(adapter
);
4374 be_cmd_get_profile_config(adapter
, NULL
, &port_res
, SAVED_PROFILE_TYPE
,
4375 RESOURCE_LIMITS
, 0);
4377 rss_tables_on_port
= MAX_PORT_RSS_TABLES
- port_res
.nic_pfs
;
4379 /* Each PF Pool's RSS Tables limit =
4380 * PF's Max VFs / Total_Max_VFs on Port * RSS Tables on Port
4382 adapter
->pool_res
.max_rss_tables
=
4383 max_vfs
* rss_tables_on_port
/ port_res
.max_vfs
;
4386 static int be_get_sriov_config(struct be_adapter
*adapter
)
4388 struct be_resources res
= {0};
4389 int max_vfs
, old_vfs
;
4391 be_cmd_get_profile_config(adapter
, &res
, NULL
, ACTIVE_PROFILE_TYPE
,
4392 RESOURCE_LIMITS
, 0);
4394 /* Some old versions of BE3 FW don't report max_vfs value */
4395 if (BE3_chip(adapter
) && !res
.max_vfs
) {
4396 max_vfs
= pci_sriov_get_totalvfs(adapter
->pdev
);
4397 res
.max_vfs
= max_vfs
> 0 ? min(MAX_VFS
, max_vfs
) : 0;
4400 adapter
->pool_res
= res
;
4402 /* If during previous unload of the driver, the VFs were not disabled,
4403 * then we cannot rely on the PF POOL limits for the TotalVFs value.
4404 * Instead use the TotalVFs value stored in the pci-dev struct.
4406 old_vfs
= pci_num_vf(adapter
->pdev
);
4408 dev_info(&adapter
->pdev
->dev
, "%d VFs are already enabled\n",
4411 adapter
->pool_res
.max_vfs
=
4412 pci_sriov_get_totalvfs(adapter
->pdev
);
4413 adapter
->num_vfs
= old_vfs
;
4416 if (skyhawk_chip(adapter
) && be_max_vfs(adapter
) && !old_vfs
) {
4417 be_calculate_pf_pool_rss_tables(adapter
);
4418 dev_info(&adapter
->pdev
->dev
,
4419 "RSS can be enabled for all VFs if num_vfs <= %d\n",
4420 be_max_pf_pool_rss_tables(adapter
));
4425 static void be_alloc_sriov_res(struct be_adapter
*adapter
)
4427 int old_vfs
= pci_num_vf(adapter
->pdev
);
4428 struct be_resources vft_res
= {0};
4431 be_get_sriov_config(adapter
);
4434 pci_sriov_set_totalvfs(adapter
->pdev
, be_max_vfs(adapter
));
4436 /* When the HW is in SRIOV capable configuration, the PF-pool
4437 * resources are given to PF during driver load, if there are no
4438 * old VFs. This facility is not available in BE3 FW.
4439 * Also, this is done by FW in Lancer chip.
4441 if (skyhawk_chip(adapter
) && be_max_vfs(adapter
) && !old_vfs
) {
4442 be_calculate_vf_res(adapter
, 0, &vft_res
);
4443 status
= be_cmd_set_sriov_config(adapter
, adapter
->pool_res
, 0,
4446 dev_err(&adapter
->pdev
->dev
,
4447 "Failed to optimize SRIOV resources\n");
4451 static int be_get_resources(struct be_adapter
*adapter
)
4453 struct device
*dev
= &adapter
->pdev
->dev
;
4454 struct be_resources res
= {0};
4457 /* For Lancer, SH etc read per-function resource limits from FW.
4458 * GET_FUNC_CONFIG returns per function guaranteed limits.
4459 * GET_PROFILE_CONFIG returns PCI-E related limits PF-pool limits
4461 if (BEx_chip(adapter
)) {
4462 BEx_get_resources(adapter
, &res
);
4464 status
= be_cmd_get_func_config(adapter
, &res
);
4468 /* If a deafault RXQ must be created, we'll use up one RSSQ*/
4469 if (res
.max_rss_qs
&& res
.max_rss_qs
== res
.max_rx_qs
&&
4470 !(res
.if_cap_flags
& BE_IF_FLAGS_DEFQ_RSS
))
4471 res
.max_rss_qs
-= 1;
4474 /* If RoCE is supported stash away half the EQs for RoCE */
4475 res
.max_nic_evt_qs
= be_roce_supported(adapter
) ?
4476 res
.max_evt_qs
/ 2 : res
.max_evt_qs
;
4479 /* If FW supports RSS default queue, then skip creating non-RSS
4480 * queue for non-IP traffic.
4482 adapter
->need_def_rxq
= (be_if_cap_flags(adapter
) &
4483 BE_IF_FLAGS_DEFQ_RSS
) ? 0 : 1;
4485 dev_info(dev
, "Max: txqs %d, rxqs %d, rss %d, eqs %d, vfs %d\n",
4486 be_max_txqs(adapter
), be_max_rxqs(adapter
),
4487 be_max_rss(adapter
), be_max_nic_eqs(adapter
),
4488 be_max_vfs(adapter
));
4489 dev_info(dev
, "Max: uc-macs %d, mc-macs %d, vlans %d\n",
4490 be_max_uc(adapter
), be_max_mc(adapter
),
4491 be_max_vlans(adapter
));
4493 /* Ensure RX and TX queues are created in pairs at init time */
4494 adapter
->cfg_num_rx_irqs
=
4495 min_t(u16
, netif_get_num_default_rss_queues(),
4496 be_max_qp_irqs(adapter
));
4497 adapter
->cfg_num_tx_irqs
= adapter
->cfg_num_rx_irqs
;
4501 static int be_get_config(struct be_adapter
*adapter
)
4506 status
= be_cmd_get_cntl_attributes(adapter
);
4510 status
= be_cmd_query_fw_cfg(adapter
);
4514 if (!lancer_chip(adapter
) && be_physfn(adapter
))
4515 be_cmd_get_fat_dump_len(adapter
, &adapter
->fat_dump_len
);
4517 if (BEx_chip(adapter
)) {
4518 level
= be_cmd_get_fw_log_level(adapter
);
4519 adapter
->msg_enable
=
4520 level
<= FW_LOG_LEVEL_DEFAULT
? NETIF_MSG_HW
: 0;
4523 be_cmd_get_acpi_wol_cap(adapter
);
4524 pci_enable_wake(adapter
->pdev
, PCI_D3hot
, adapter
->wol_en
);
4525 pci_enable_wake(adapter
->pdev
, PCI_D3cold
, adapter
->wol_en
);
4527 be_cmd_query_port_name(adapter
);
4529 if (be_physfn(adapter
)) {
4530 status
= be_cmd_get_active_profile(adapter
, &profile_id
);
4532 dev_info(&adapter
->pdev
->dev
,
4533 "Using profile 0x%x\n", profile_id
);
4539 static int be_mac_setup(struct be_adapter
*adapter
)
4544 if (is_zero_ether_addr(adapter
->netdev
->dev_addr
)) {
4545 status
= be_cmd_get_perm_mac(adapter
, mac
);
4549 memcpy(adapter
->netdev
->dev_addr
, mac
, ETH_ALEN
);
4550 memcpy(adapter
->netdev
->perm_addr
, mac
, ETH_ALEN
);
4556 static void be_schedule_worker(struct be_adapter
*adapter
)
4558 queue_delayed_work(be_wq
, &adapter
->work
, msecs_to_jiffies(1000));
4559 adapter
->flags
|= BE_FLAGS_WORKER_SCHEDULED
;
4562 static void be_destroy_err_recovery_workq(void)
4564 if (!be_err_recovery_workq
)
4567 flush_workqueue(be_err_recovery_workq
);
4568 destroy_workqueue(be_err_recovery_workq
);
4569 be_err_recovery_workq
= NULL
;
4572 static void be_schedule_err_detection(struct be_adapter
*adapter
, u32 delay
)
4574 struct be_error_recovery
*err_rec
= &adapter
->error_recovery
;
4576 if (!be_err_recovery_workq
)
4579 queue_delayed_work(be_err_recovery_workq
, &err_rec
->err_detection_work
,
4580 msecs_to_jiffies(delay
));
4581 adapter
->flags
|= BE_FLAGS_ERR_DETECTION_SCHEDULED
;
4584 static int be_setup_queues(struct be_adapter
*adapter
)
4586 struct net_device
*netdev
= adapter
->netdev
;
4589 status
= be_evt_queues_create(adapter
);
4593 status
= be_tx_qs_create(adapter
);
4597 status
= be_rx_cqs_create(adapter
);
4601 status
= be_mcc_queues_create(adapter
);
4605 status
= netif_set_real_num_rx_queues(netdev
, adapter
->num_rx_qs
);
4609 status
= netif_set_real_num_tx_queues(netdev
, adapter
->num_tx_qs
);
4615 dev_err(&adapter
->pdev
->dev
, "queue_setup failed\n");
4619 static int be_if_create(struct be_adapter
*adapter
)
4621 u32 en_flags
= BE_IF_FLAGS_RSS
| BE_IF_FLAGS_DEFQ_RSS
;
4622 u32 cap_flags
= be_if_cap_flags(adapter
);
4625 /* alloc required memory for other filtering fields */
4626 adapter
->pmac_id
= kcalloc(be_max_uc(adapter
),
4627 sizeof(*adapter
->pmac_id
), GFP_KERNEL
);
4628 if (!adapter
->pmac_id
)
4631 adapter
->mc_list
= kcalloc(be_max_mc(adapter
),
4632 sizeof(*adapter
->mc_list
), GFP_KERNEL
);
4633 if (!adapter
->mc_list
)
4636 adapter
->uc_list
= kcalloc(be_max_uc(adapter
),
4637 sizeof(*adapter
->uc_list
), GFP_KERNEL
);
4638 if (!adapter
->uc_list
)
4641 if (adapter
->cfg_num_rx_irqs
== 1)
4642 cap_flags
&= ~(BE_IF_FLAGS_DEFQ_RSS
| BE_IF_FLAGS_RSS
);
4644 en_flags
&= cap_flags
;
4645 /* will enable all the needed filter flags in be_open() */
4646 status
= be_cmd_if_create(adapter
, be_if_cap_flags(adapter
), en_flags
,
4647 &adapter
->if_handle
, 0);
4655 int be_update_queues(struct be_adapter
*adapter
)
4657 struct net_device
*netdev
= adapter
->netdev
;
4660 if (netif_running(netdev
))
4663 be_cancel_worker(adapter
);
4665 /* If any vectors have been shared with RoCE we cannot re-program
4668 if (!adapter
->num_msix_roce_vec
)
4669 be_msix_disable(adapter
);
4671 be_clear_queues(adapter
);
4672 status
= be_cmd_if_destroy(adapter
, adapter
->if_handle
, 0);
4676 if (!msix_enabled(adapter
)) {
4677 status
= be_msix_enable(adapter
);
4682 status
= be_if_create(adapter
);
4686 status
= be_setup_queues(adapter
);
4690 be_schedule_worker(adapter
);
4692 if (netif_running(netdev
))
4693 status
= be_open(netdev
);
4698 static inline int fw_major_num(const char *fw_ver
)
4700 int fw_major
= 0, i
;
4702 i
= sscanf(fw_ver
, "%d.", &fw_major
);
4709 /* If it is error recovery, FLR the PF
4710 * Else if any VFs are already enabled don't FLR the PF
4712 static bool be_reset_required(struct be_adapter
*adapter
)
4714 if (be_error_recovering(adapter
))
4717 return pci_num_vf(adapter
->pdev
) == 0;
4720 /* Wait for the FW to be ready and perform the required initialization */
4721 static int be_func_init(struct be_adapter
*adapter
)
4725 status
= be_fw_wait_ready(adapter
);
4729 /* FW is now ready; clear errors to allow cmds/doorbell */
4730 be_clear_error(adapter
, BE_CLEAR_ALL
);
4732 if (be_reset_required(adapter
)) {
4733 status
= be_cmd_reset_function(adapter
);
4737 /* Wait for interrupts to quiesce after an FLR */
4741 /* Tell FW we're ready to fire cmds */
4742 status
= be_cmd_fw_init(adapter
);
4746 /* Allow interrupts for other ULPs running on NIC function */
4747 be_intr_set(adapter
, true);
4752 static int be_setup(struct be_adapter
*adapter
)
4754 struct device
*dev
= &adapter
->pdev
->dev
;
4757 status
= be_func_init(adapter
);
4761 be_setup_init(adapter
);
4763 if (!lancer_chip(adapter
))
4764 be_cmd_req_native_mode(adapter
);
4766 /* invoke this cmd first to get pf_num and vf_num which are needed
4767 * for issuing profile related cmds
4769 if (!BEx_chip(adapter
)) {
4770 status
= be_cmd_get_func_config(adapter
, NULL
);
4775 status
= be_get_config(adapter
);
4779 if (!BE2_chip(adapter
) && be_physfn(adapter
))
4780 be_alloc_sriov_res(adapter
);
4782 status
= be_get_resources(adapter
);
4786 status
= be_msix_enable(adapter
);
4790 /* will enable all the needed filter flags in be_open() */
4791 status
= be_if_create(adapter
);
4795 /* Updating real_num_tx/rx_queues() requires rtnl_lock() */
4797 status
= be_setup_queues(adapter
);
4802 be_cmd_get_fn_privileges(adapter
, &adapter
->cmd_privileges
, 0);
4804 status
= be_mac_setup(adapter
);
4808 be_cmd_get_fw_ver(adapter
);
4809 dev_info(dev
, "FW version is %s\n", adapter
->fw_ver
);
4811 if (BE2_chip(adapter
) && fw_major_num(adapter
->fw_ver
) < 4) {
4812 dev_err(dev
, "Firmware on card is old(%s), IRQs may not work",
4814 dev_err(dev
, "Please upgrade firmware to version >= 4.0\n");
4817 status
= be_cmd_set_flow_control(adapter
, adapter
->tx_fc
,
4820 be_cmd_get_flow_control(adapter
, &adapter
->tx_fc
,
4823 dev_info(&adapter
->pdev
->dev
, "HW Flow control - TX:%d RX:%d\n",
4824 adapter
->tx_fc
, adapter
->rx_fc
);
4826 if (be_physfn(adapter
))
4827 be_cmd_set_logical_link_config(adapter
,
4828 IFLA_VF_LINK_STATE_AUTO
, 0);
4830 /* BE3 EVB echoes broadcast/multicast packets back to PF's vport
4831 * confusing a linux bridge or OVS that it might be connected to.
4832 * Set the EVB to PASSTHRU mode which effectively disables the EVB
4833 * when SRIOV is not enabled.
4835 if (BE3_chip(adapter
))
4836 be_cmd_set_hsw_config(adapter
, 0, 0, adapter
->if_handle
,
4837 PORT_FWD_TYPE_PASSTHRU
, 0);
4839 if (adapter
->num_vfs
)
4840 be_vf_setup(adapter
);
4842 status
= be_cmd_get_phy_info(adapter
);
4843 if (!status
&& be_pause_supported(adapter
))
4844 adapter
->phy
.fc_autoneg
= 1;
4846 if (be_physfn(adapter
) && !lancer_chip(adapter
))
4847 be_cmd_set_features(adapter
);
4849 be_schedule_worker(adapter
);
4850 adapter
->flags
|= BE_FLAGS_SETUP_DONE
;
4857 #ifdef CONFIG_NET_POLL_CONTROLLER
4858 static void be_netpoll(struct net_device
*netdev
)
4860 struct be_adapter
*adapter
= netdev_priv(netdev
);
4861 struct be_eq_obj
*eqo
;
4864 for_all_evt_queues(adapter
, eqo
, i
) {
4865 be_eq_notify(eqo
->adapter
, eqo
->q
.id
, false, true, 0, 0);
4866 napi_schedule(&eqo
->napi
);
4871 int be_load_fw(struct be_adapter
*adapter
, u8
*fw_file
)
4873 const struct firmware
*fw
;
4876 if (!netif_running(adapter
->netdev
)) {
4877 dev_err(&adapter
->pdev
->dev
,
4878 "Firmware load not allowed (interface is down)\n");
4882 status
= request_firmware(&fw
, fw_file
, &adapter
->pdev
->dev
);
4886 dev_info(&adapter
->pdev
->dev
, "Flashing firmware file %s\n", fw_file
);
4888 if (lancer_chip(adapter
))
4889 status
= lancer_fw_download(adapter
, fw
);
4891 status
= be_fw_download(adapter
, fw
);
4894 be_cmd_get_fw_ver(adapter
);
4897 release_firmware(fw
);
4901 static int be_ndo_bridge_setlink(struct net_device
*dev
, struct nlmsghdr
*nlh
,
4904 struct be_adapter
*adapter
= netdev_priv(dev
);
4905 struct nlattr
*attr
, *br_spec
;
4910 if (!sriov_enabled(adapter
))
4913 br_spec
= nlmsg_find_attr(nlh
, sizeof(struct ifinfomsg
), IFLA_AF_SPEC
);
4917 nla_for_each_nested(attr
, br_spec
, rem
) {
4918 if (nla_type(attr
) != IFLA_BRIDGE_MODE
)
4921 if (nla_len(attr
) < sizeof(mode
))
4924 mode
= nla_get_u16(attr
);
4925 if (BE3_chip(adapter
) && mode
== BRIDGE_MODE_VEPA
)
4928 if (mode
!= BRIDGE_MODE_VEPA
&& mode
!= BRIDGE_MODE_VEB
)
4931 status
= be_cmd_set_hsw_config(adapter
, 0, 0,
4933 mode
== BRIDGE_MODE_VEPA
?
4934 PORT_FWD_TYPE_VEPA
:
4935 PORT_FWD_TYPE_VEB
, 0);
4939 dev_info(&adapter
->pdev
->dev
, "enabled switch mode: %s\n",
4940 mode
== BRIDGE_MODE_VEPA
? "VEPA" : "VEB");
4945 dev_err(&adapter
->pdev
->dev
, "Failed to set switch mode %s\n",
4946 mode
== BRIDGE_MODE_VEPA
? "VEPA" : "VEB");
4951 static int be_ndo_bridge_getlink(struct sk_buff
*skb
, u32 pid
, u32 seq
,
4952 struct net_device
*dev
, u32 filter_mask
,
4955 struct be_adapter
*adapter
= netdev_priv(dev
);
4959 /* BE and Lancer chips support VEB mode only */
4960 if (BEx_chip(adapter
) || lancer_chip(adapter
)) {
4961 /* VEB is disabled in non-SR-IOV profiles on BE3/Lancer */
4962 if (!pci_sriov_get_totalvfs(adapter
->pdev
))
4964 hsw_mode
= PORT_FWD_TYPE_VEB
;
4966 status
= be_cmd_get_hsw_config(adapter
, NULL
, 0,
4967 adapter
->if_handle
, &hsw_mode
,
4972 if (hsw_mode
== PORT_FWD_TYPE_PASSTHRU
)
4976 return ndo_dflt_bridge_getlink(skb
, pid
, seq
, dev
,
4977 hsw_mode
== PORT_FWD_TYPE_VEPA
?
4978 BRIDGE_MODE_VEPA
: BRIDGE_MODE_VEB
,
4979 0, 0, nlflags
, filter_mask
, NULL
);
4982 static struct be_cmd_work
*be_alloc_work(struct be_adapter
*adapter
,
4983 void (*func
)(struct work_struct
*))
4985 struct be_cmd_work
*work
;
4987 work
= kzalloc(sizeof(*work
), GFP_ATOMIC
);
4989 dev_err(&adapter
->pdev
->dev
,
4990 "be_work memory allocation failed\n");
4994 INIT_WORK(&work
->work
, func
);
4995 work
->adapter
= adapter
;
4999 /* VxLAN offload Notes:
5001 * The stack defines tunnel offload flags (hw_enc_features) for IP and doesn't
5002 * distinguish various types of transports (VxLAN, GRE, NVGRE ..). So, offload
5003 * is expected to work across all types of IP tunnels once exported. Skyhawk
5004 * supports offloads for either VxLAN or NVGRE, exclusively. So we export VxLAN
5005 * offloads in hw_enc_features only when a VxLAN port is added. If other (non
5006 * VxLAN) tunnels are configured while VxLAN offloads are enabled, offloads for
5007 * those other tunnels are unexported on the fly through ndo_features_check().
5009 * Skyhawk supports VxLAN offloads only for one UDP dport. So, if the stack
5010 * adds more than one port, disable offloads and don't re-enable them again
5011 * until after all the tunnels are removed.
5013 static void be_work_add_vxlan_port(struct work_struct
*work
)
5015 struct be_cmd_work
*cmd_work
=
5016 container_of(work
, struct be_cmd_work
, work
);
5017 struct be_adapter
*adapter
= cmd_work
->adapter
;
5018 struct net_device
*netdev
= adapter
->netdev
;
5019 struct device
*dev
= &adapter
->pdev
->dev
;
5020 __be16 port
= cmd_work
->info
.vxlan_port
;
5023 if (adapter
->vxlan_port
== port
&& adapter
->vxlan_port_count
) {
5024 adapter
->vxlan_port_aliases
++;
5028 if (adapter
->flags
& BE_FLAGS_VXLAN_OFFLOADS
) {
5030 "Only one UDP port supported for VxLAN offloads\n");
5031 dev_info(dev
, "Disabling VxLAN offloads\n");
5032 adapter
->vxlan_port_count
++;
5036 if (adapter
->vxlan_port_count
++ >= 1)
5039 status
= be_cmd_manage_iface(adapter
, adapter
->if_handle
,
5040 OP_CONVERT_NORMAL_TO_TUNNEL
);
5042 dev_warn(dev
, "Failed to convert normal interface to tunnel\n");
5046 status
= be_cmd_set_vxlan_port(adapter
, port
);
5048 dev_warn(dev
, "Failed to add VxLAN port\n");
5051 adapter
->flags
|= BE_FLAGS_VXLAN_OFFLOADS
;
5052 adapter
->vxlan_port
= port
;
5054 netdev
->hw_enc_features
|= NETIF_F_IP_CSUM
| NETIF_F_IPV6_CSUM
|
5055 NETIF_F_TSO
| NETIF_F_TSO6
|
5056 NETIF_F_GSO_UDP_TUNNEL
;
5057 netdev
->hw_features
|= NETIF_F_GSO_UDP_TUNNEL
;
5058 netdev
->features
|= NETIF_F_GSO_UDP_TUNNEL
;
5060 dev_info(dev
, "Enabled VxLAN offloads for UDP port %d\n",
5064 be_disable_vxlan_offloads(adapter
);
5069 static void be_work_del_vxlan_port(struct work_struct
*work
)
5071 struct be_cmd_work
*cmd_work
=
5072 container_of(work
, struct be_cmd_work
, work
);
5073 struct be_adapter
*adapter
= cmd_work
->adapter
;
5074 __be16 port
= cmd_work
->info
.vxlan_port
;
5076 if (adapter
->vxlan_port
!= port
)
5079 if (adapter
->vxlan_port_aliases
) {
5080 adapter
->vxlan_port_aliases
--;
5084 be_disable_vxlan_offloads(adapter
);
5086 dev_info(&adapter
->pdev
->dev
,
5087 "Disabled VxLAN offloads for UDP port %d\n",
5090 adapter
->vxlan_port_count
--;
5095 static void be_cfg_vxlan_port(struct net_device
*netdev
,
5096 struct udp_tunnel_info
*ti
,
5097 void (*func
)(struct work_struct
*))
5099 struct be_adapter
*adapter
= netdev_priv(netdev
);
5100 struct be_cmd_work
*cmd_work
;
5102 if (ti
->type
!= UDP_TUNNEL_TYPE_VXLAN
)
5105 if (lancer_chip(adapter
) || BEx_chip(adapter
) || be_is_mc(adapter
))
5108 cmd_work
= be_alloc_work(adapter
, func
);
5110 cmd_work
->info
.vxlan_port
= ti
->port
;
5111 queue_work(be_wq
, &cmd_work
->work
);
5115 static void be_del_vxlan_port(struct net_device
*netdev
,
5116 struct udp_tunnel_info
*ti
)
5118 be_cfg_vxlan_port(netdev
, ti
, be_work_del_vxlan_port
);
5121 static void be_add_vxlan_port(struct net_device
*netdev
,
5122 struct udp_tunnel_info
*ti
)
5124 be_cfg_vxlan_port(netdev
, ti
, be_work_add_vxlan_port
);
5127 static netdev_features_t
be_features_check(struct sk_buff
*skb
,
5128 struct net_device
*dev
,
5129 netdev_features_t features
)
5131 struct be_adapter
*adapter
= netdev_priv(dev
);
5134 /* The code below restricts offload features for some tunneled packets.
5135 * Offload features for normal (non tunnel) packets are unchanged.
5137 if (!skb
->encapsulation
||
5138 !(adapter
->flags
& BE_FLAGS_VXLAN_OFFLOADS
))
5141 /* It's an encapsulated packet and VxLAN offloads are enabled. We
5142 * should disable tunnel offload features if it's not a VxLAN packet,
5143 * as tunnel offloads have been enabled only for VxLAN. This is done to
5144 * allow other tunneled traffic like GRE work fine while VxLAN
5145 * offloads are configured in Skyhawk-R.
5147 switch (vlan_get_protocol(skb
)) {
5148 case htons(ETH_P_IP
):
5149 l4_hdr
= ip_hdr(skb
)->protocol
;
5151 case htons(ETH_P_IPV6
):
5152 l4_hdr
= ipv6_hdr(skb
)->nexthdr
;
5158 if (l4_hdr
!= IPPROTO_UDP
||
5159 skb
->inner_protocol_type
!= ENCAP_TYPE_ETHER
||
5160 skb
->inner_protocol
!= htons(ETH_P_TEB
) ||
5161 skb_inner_mac_header(skb
) - skb_transport_header(skb
) !=
5162 sizeof(struct udphdr
) + sizeof(struct vxlanhdr
))
5163 return features
& ~(NETIF_F_CSUM_MASK
| NETIF_F_GSO_MASK
);
5168 static int be_get_phys_port_id(struct net_device
*dev
,
5169 struct netdev_phys_item_id
*ppid
)
5171 int i
, id_len
= CNTL_SERIAL_NUM_WORDS
* CNTL_SERIAL_NUM_WORD_SZ
+ 1;
5172 struct be_adapter
*adapter
= netdev_priv(dev
);
5175 if (MAX_PHYS_ITEM_ID_LEN
< id_len
)
5178 ppid
->id
[0] = adapter
->hba_port_num
+ 1;
5180 for (i
= CNTL_SERIAL_NUM_WORDS
- 1; i
>= 0;
5181 i
--, id
+= CNTL_SERIAL_NUM_WORD_SZ
)
5182 memcpy(id
, &adapter
->serial_num
[i
], CNTL_SERIAL_NUM_WORD_SZ
);
5184 ppid
->id_len
= id_len
;
5189 static void be_set_rx_mode(struct net_device
*dev
)
5191 struct be_adapter
*adapter
= netdev_priv(dev
);
5192 struct be_cmd_work
*work
;
5194 work
= be_alloc_work(adapter
, be_work_set_rx_mode
);
5196 queue_work(be_wq
, &work
->work
);
5199 static const struct net_device_ops be_netdev_ops
= {
5200 .ndo_open
= be_open
,
5201 .ndo_stop
= be_close
,
5202 .ndo_start_xmit
= be_xmit
,
5203 .ndo_set_rx_mode
= be_set_rx_mode
,
5204 .ndo_set_mac_address
= be_mac_addr_set
,
5205 .ndo_change_mtu
= be_change_mtu
,
5206 .ndo_get_stats64
= be_get_stats64
,
5207 .ndo_validate_addr
= eth_validate_addr
,
5208 .ndo_vlan_rx_add_vid
= be_vlan_add_vid
,
5209 .ndo_vlan_rx_kill_vid
= be_vlan_rem_vid
,
5210 .ndo_set_vf_mac
= be_set_vf_mac
,
5211 .ndo_set_vf_vlan
= be_set_vf_vlan
,
5212 .ndo_set_vf_rate
= be_set_vf_tx_rate
,
5213 .ndo_get_vf_config
= be_get_vf_config
,
5214 .ndo_set_vf_link_state
= be_set_vf_link_state
,
5215 .ndo_set_vf_spoofchk
= be_set_vf_spoofchk
,
5216 #ifdef CONFIG_NET_POLL_CONTROLLER
5217 .ndo_poll_controller
= be_netpoll
,
5219 .ndo_bridge_setlink
= be_ndo_bridge_setlink
,
5220 .ndo_bridge_getlink
= be_ndo_bridge_getlink
,
5221 #ifdef CONFIG_NET_RX_BUSY_POLL
5222 .ndo_busy_poll
= be_busy_poll
,
5224 .ndo_udp_tunnel_add
= be_add_vxlan_port
,
5225 .ndo_udp_tunnel_del
= be_del_vxlan_port
,
5226 .ndo_features_check
= be_features_check
,
5227 .ndo_get_phys_port_id
= be_get_phys_port_id
,
5230 static void be_netdev_init(struct net_device
*netdev
)
5232 struct be_adapter
*adapter
= netdev_priv(netdev
);
5234 netdev
->hw_features
|= NETIF_F_SG
| NETIF_F_TSO
| NETIF_F_TSO6
|
5235 NETIF_F_IP_CSUM
| NETIF_F_IPV6_CSUM
| NETIF_F_RXCSUM
|
5236 NETIF_F_HW_VLAN_CTAG_TX
;
5237 if ((be_if_cap_flags(adapter
) & BE_IF_FLAGS_RSS
))
5238 netdev
->hw_features
|= NETIF_F_RXHASH
;
5240 netdev
->features
|= netdev
->hw_features
|
5241 NETIF_F_HW_VLAN_CTAG_RX
| NETIF_F_HW_VLAN_CTAG_FILTER
;
5243 netdev
->vlan_features
|= NETIF_F_SG
| NETIF_F_TSO
| NETIF_F_TSO6
|
5244 NETIF_F_IP_CSUM
| NETIF_F_IPV6_CSUM
;
5246 netdev
->priv_flags
|= IFF_UNICAST_FLT
;
5248 netdev
->flags
|= IFF_MULTICAST
;
5250 netif_set_gso_max_size(netdev
, BE_MAX_GSO_SIZE
- ETH_HLEN
);
5252 netdev
->netdev_ops
= &be_netdev_ops
;
5254 netdev
->ethtool_ops
= &be_ethtool_ops
;
5257 static void be_cleanup(struct be_adapter
*adapter
)
5259 struct net_device
*netdev
= adapter
->netdev
;
5262 netif_device_detach(netdev
);
5263 if (netif_running(netdev
))
5270 static int be_resume(struct be_adapter
*adapter
)
5272 struct net_device
*netdev
= adapter
->netdev
;
5275 status
= be_setup(adapter
);
5280 if (netif_running(netdev
))
5281 status
= be_open(netdev
);
5287 netif_device_attach(netdev
);
5292 static void be_soft_reset(struct be_adapter
*adapter
)
5296 dev_info(&adapter
->pdev
->dev
, "Initiating chip soft reset\n");
5297 val
= ioread32(adapter
->pcicfg
+ SLIPORT_SOFTRESET_OFFSET
);
5298 val
|= SLIPORT_SOFTRESET_SR_MASK
;
5299 iowrite32(val
, adapter
->pcicfg
+ SLIPORT_SOFTRESET_OFFSET
);
5302 static bool be_err_is_recoverable(struct be_adapter
*adapter
)
5304 struct be_error_recovery
*err_rec
= &adapter
->error_recovery
;
5305 unsigned long initial_idle_time
=
5306 msecs_to_jiffies(ERR_RECOVERY_IDLE_TIME
);
5307 unsigned long recovery_interval
=
5308 msecs_to_jiffies(ERR_RECOVERY_INTERVAL
);
5312 val
= be_POST_stage_get(adapter
);
5313 if ((val
& POST_STAGE_RECOVERABLE_ERR
) != POST_STAGE_RECOVERABLE_ERR
)
5315 ue_err_code
= val
& POST_ERR_RECOVERY_CODE_MASK
;
5316 if (ue_err_code
== 0)
5319 dev_err(&adapter
->pdev
->dev
, "Recoverable HW error code: 0x%x\n",
5322 if (jiffies
- err_rec
->probe_time
<= initial_idle_time
) {
5323 dev_err(&adapter
->pdev
->dev
,
5324 "Cannot recover within %lu sec from driver load\n",
5325 jiffies_to_msecs(initial_idle_time
) / MSEC_PER_SEC
);
5329 if (err_rec
->last_recovery_time
&&
5330 (jiffies
- err_rec
->last_recovery_time
<= recovery_interval
)) {
5331 dev_err(&adapter
->pdev
->dev
,
5332 "Cannot recover within %lu sec from last recovery\n",
5333 jiffies_to_msecs(recovery_interval
) / MSEC_PER_SEC
);
5337 if (ue_err_code
== err_rec
->last_err_code
) {
5338 dev_err(&adapter
->pdev
->dev
,
5339 "Cannot recover from a consecutive TPE error\n");
5343 err_rec
->last_recovery_time
= jiffies
;
5344 err_rec
->last_err_code
= ue_err_code
;
5348 static int be_tpe_recover(struct be_adapter
*adapter
)
5350 struct be_error_recovery
*err_rec
= &adapter
->error_recovery
;
5351 int status
= -EAGAIN
;
5354 switch (err_rec
->recovery_state
) {
5355 case ERR_RECOVERY_ST_NONE
:
5356 err_rec
->recovery_state
= ERR_RECOVERY_ST_DETECT
;
5357 err_rec
->resched_delay
= ERR_RECOVERY_UE_DETECT_DURATION
;
5360 case ERR_RECOVERY_ST_DETECT
:
5361 val
= be_POST_stage_get(adapter
);
5362 if ((val
& POST_STAGE_RECOVERABLE_ERR
) !=
5363 POST_STAGE_RECOVERABLE_ERR
) {
5364 dev_err(&adapter
->pdev
->dev
,
5365 "Unrecoverable HW error detected: 0x%x\n", val
);
5367 err_rec
->resched_delay
= 0;
5371 dev_err(&adapter
->pdev
->dev
, "Recoverable HW error detected\n");
5373 /* Only PF0 initiates Chip Soft Reset. But PF0 must wait UE2SR
5374 * milliseconds before it checks for final error status in
5375 * SLIPORT_SEMAPHORE to determine if recovery criteria is met.
5376 * If it does, then PF0 initiates a Soft Reset.
5378 if (adapter
->pf_num
== 0) {
5379 err_rec
->recovery_state
= ERR_RECOVERY_ST_RESET
;
5380 err_rec
->resched_delay
= err_rec
->ue_to_reset_time
-
5381 ERR_RECOVERY_UE_DETECT_DURATION
;
5385 err_rec
->recovery_state
= ERR_RECOVERY_ST_PRE_POLL
;
5386 err_rec
->resched_delay
= err_rec
->ue_to_poll_time
-
5387 ERR_RECOVERY_UE_DETECT_DURATION
;
5390 case ERR_RECOVERY_ST_RESET
:
5391 if (!be_err_is_recoverable(adapter
)) {
5392 dev_err(&adapter
->pdev
->dev
,
5393 "Failed to meet recovery criteria\n");
5395 err_rec
->resched_delay
= 0;
5398 be_soft_reset(adapter
);
5399 err_rec
->recovery_state
= ERR_RECOVERY_ST_PRE_POLL
;
5400 err_rec
->resched_delay
= err_rec
->ue_to_poll_time
-
5401 err_rec
->ue_to_reset_time
;
5404 case ERR_RECOVERY_ST_PRE_POLL
:
5405 err_rec
->recovery_state
= ERR_RECOVERY_ST_REINIT
;
5406 err_rec
->resched_delay
= 0;
5407 status
= 0; /* done */
5412 err_rec
->resched_delay
= 0;
5419 static int be_err_recover(struct be_adapter
*adapter
)
5423 if (!lancer_chip(adapter
)) {
5424 if (!adapter
->error_recovery
.recovery_supported
||
5425 adapter
->priv_flags
& BE_DISABLE_TPE_RECOVERY
)
5427 status
= be_tpe_recover(adapter
);
5432 /* Wait for adapter to reach quiescent state before
5435 status
= be_fw_wait_ready(adapter
);
5439 adapter
->flags
|= BE_FLAGS_TRY_RECOVERY
;
5441 be_cleanup(adapter
);
5443 status
= be_resume(adapter
);
5447 adapter
->flags
&= ~BE_FLAGS_TRY_RECOVERY
;
5453 static void be_err_detection_task(struct work_struct
*work
)
5455 struct be_error_recovery
*err_rec
=
5456 container_of(work
, struct be_error_recovery
,
5457 err_detection_work
.work
);
5458 struct be_adapter
*adapter
=
5459 container_of(err_rec
, struct be_adapter
,
5461 u32 resched_delay
= ERR_RECOVERY_DETECTION_DELAY
;
5462 struct device
*dev
= &adapter
->pdev
->dev
;
5463 int recovery_status
;
5465 be_detect_error(adapter
);
5466 if (!be_check_error(adapter
, BE_ERROR_HW
))
5467 goto reschedule_task
;
5469 recovery_status
= be_err_recover(adapter
);
5470 if (!recovery_status
) {
5471 err_rec
->recovery_retries
= 0;
5472 err_rec
->recovery_state
= ERR_RECOVERY_ST_NONE
;
5473 dev_info(dev
, "Adapter recovery successful\n");
5474 goto reschedule_task
;
5475 } else if (!lancer_chip(adapter
) && err_rec
->resched_delay
) {
5476 /* BEx/SH recovery state machine */
5477 if (adapter
->pf_num
== 0 &&
5478 err_rec
->recovery_state
> ERR_RECOVERY_ST_DETECT
)
5479 dev_err(&adapter
->pdev
->dev
,
5480 "Adapter recovery in progress\n");
5481 resched_delay
= err_rec
->resched_delay
;
5482 goto reschedule_task
;
5483 } else if (lancer_chip(adapter
) && be_virtfn(adapter
)) {
5484 /* For VFs, check if PF have allocated resources
5487 dev_err(dev
, "Re-trying adapter recovery\n");
5488 goto reschedule_task
;
5489 } else if (lancer_chip(adapter
) && err_rec
->recovery_retries
++ <
5490 ERR_RECOVERY_MAX_RETRY_COUNT
) {
5491 /* In case of another error during recovery, it takes 30 sec
5492 * for adapter to come out of error. Retry error recovery after
5493 * this time interval.
5495 dev_err(&adapter
->pdev
->dev
, "Re-trying adapter recovery\n");
5496 resched_delay
= ERR_RECOVERY_RETRY_DELAY
;
5497 goto reschedule_task
;
5499 dev_err(dev
, "Adapter recovery failed\n");
5500 dev_err(dev
, "Please reboot server to recover\n");
5506 be_schedule_err_detection(adapter
, resched_delay
);
5509 static void be_log_sfp_info(struct be_adapter
*adapter
)
5513 status
= be_cmd_query_sfp_info(adapter
);
5515 dev_err(&adapter
->pdev
->dev
,
5516 "Port %c: %s Vendor: %s part no: %s",
5518 be_misconfig_evt_port_state
[adapter
->phy_state
],
5519 adapter
->phy
.vendor_name
,
5520 adapter
->phy
.vendor_pn
);
5522 adapter
->flags
&= ~BE_FLAGS_PHY_MISCONFIGURED
;
5525 static void be_worker(struct work_struct
*work
)
5527 struct be_adapter
*adapter
=
5528 container_of(work
, struct be_adapter
, work
.work
);
5529 struct be_rx_obj
*rxo
;
5532 if (be_physfn(adapter
) &&
5533 MODULO(adapter
->work_counter
, adapter
->be_get_temp_freq
) == 0)
5534 be_cmd_get_die_temperature(adapter
);
5536 /* when interrupts are not yet enabled, just reap any pending
5539 if (!netif_running(adapter
->netdev
)) {
5541 be_process_mcc(adapter
);
5546 if (!adapter
->stats_cmd_sent
) {
5547 if (lancer_chip(adapter
))
5548 lancer_cmd_get_pport_stats(adapter
,
5549 &adapter
->stats_cmd
);
5551 be_cmd_get_stats(adapter
, &adapter
->stats_cmd
);
5554 for_all_rx_queues(adapter
, rxo
, i
) {
5555 /* Replenish RX-queues starved due to memory
5556 * allocation failures.
5558 if (rxo
->rx_post_starved
)
5559 be_post_rx_frags(rxo
, GFP_KERNEL
, MAX_RX_POST
);
5562 /* EQ-delay update for Skyhawk is done while notifying EQ */
5563 if (!skyhawk_chip(adapter
))
5564 be_eqd_update(adapter
, false);
5566 if (adapter
->flags
& BE_FLAGS_PHY_MISCONFIGURED
)
5567 be_log_sfp_info(adapter
);
5570 adapter
->work_counter
++;
5571 queue_delayed_work(be_wq
, &adapter
->work
, msecs_to_jiffies(1000));
5574 static void be_unmap_pci_bars(struct be_adapter
*adapter
)
5577 pci_iounmap(adapter
->pdev
, adapter
->csr
);
5579 pci_iounmap(adapter
->pdev
, adapter
->db
);
5580 if (adapter
->pcicfg
&& adapter
->pcicfg_mapped
)
5581 pci_iounmap(adapter
->pdev
, adapter
->pcicfg
);
5584 static int db_bar(struct be_adapter
*adapter
)
5586 if (lancer_chip(adapter
) || be_virtfn(adapter
))
5592 static int be_roce_map_pci_bars(struct be_adapter
*adapter
)
5594 if (skyhawk_chip(adapter
)) {
5595 adapter
->roce_db
.size
= 4096;
5596 adapter
->roce_db
.io_addr
= pci_resource_start(adapter
->pdev
,
5598 adapter
->roce_db
.total_size
= pci_resource_len(adapter
->pdev
,
5604 static int be_map_pci_bars(struct be_adapter
*adapter
)
5606 struct pci_dev
*pdev
= adapter
->pdev
;
5610 pci_read_config_dword(adapter
->pdev
, SLI_INTF_REG_OFFSET
, &sli_intf
);
5611 adapter
->sli_family
= (sli_intf
& SLI_INTF_FAMILY_MASK
) >>
5612 SLI_INTF_FAMILY_SHIFT
;
5613 adapter
->virtfn
= (sli_intf
& SLI_INTF_FT_MASK
) ? 1 : 0;
5615 if (BEx_chip(adapter
) && be_physfn(adapter
)) {
5616 adapter
->csr
= pci_iomap(pdev
, 2, 0);
5621 addr
= pci_iomap(pdev
, db_bar(adapter
), 0);
5626 if (skyhawk_chip(adapter
) || BEx_chip(adapter
)) {
5627 if (be_physfn(adapter
)) {
5628 /* PCICFG is the 2nd BAR in BE2 */
5629 addr
= pci_iomap(pdev
, BE2_chip(adapter
) ? 1 : 0, 0);
5632 adapter
->pcicfg
= addr
;
5633 adapter
->pcicfg_mapped
= true;
5635 adapter
->pcicfg
= adapter
->db
+ SRIOV_VF_PCICFG_OFFSET
;
5636 adapter
->pcicfg_mapped
= false;
5640 be_roce_map_pci_bars(adapter
);
5644 dev_err(&pdev
->dev
, "Error in mapping PCI BARs\n");
5645 be_unmap_pci_bars(adapter
);
5649 static void be_drv_cleanup(struct be_adapter
*adapter
)
5651 struct be_dma_mem
*mem
= &adapter
->mbox_mem_alloced
;
5652 struct device
*dev
= &adapter
->pdev
->dev
;
5655 dma_free_coherent(dev
, mem
->size
, mem
->va
, mem
->dma
);
5657 mem
= &adapter
->rx_filter
;
5659 dma_free_coherent(dev
, mem
->size
, mem
->va
, mem
->dma
);
5661 mem
= &adapter
->stats_cmd
;
5663 dma_free_coherent(dev
, mem
->size
, mem
->va
, mem
->dma
);
5666 /* Allocate and initialize various fields in be_adapter struct */
5667 static int be_drv_init(struct be_adapter
*adapter
)
5669 struct be_dma_mem
*mbox_mem_alloc
= &adapter
->mbox_mem_alloced
;
5670 struct be_dma_mem
*mbox_mem_align
= &adapter
->mbox_mem
;
5671 struct be_dma_mem
*rx_filter
= &adapter
->rx_filter
;
5672 struct be_dma_mem
*stats_cmd
= &adapter
->stats_cmd
;
5673 struct device
*dev
= &adapter
->pdev
->dev
;
5676 mbox_mem_alloc
->size
= sizeof(struct be_mcc_mailbox
) + 16;
5677 mbox_mem_alloc
->va
= dma_zalloc_coherent(dev
, mbox_mem_alloc
->size
,
5678 &mbox_mem_alloc
->dma
,
5680 if (!mbox_mem_alloc
->va
)
5683 mbox_mem_align
->size
= sizeof(struct be_mcc_mailbox
);
5684 mbox_mem_align
->va
= PTR_ALIGN(mbox_mem_alloc
->va
, 16);
5685 mbox_mem_align
->dma
= PTR_ALIGN(mbox_mem_alloc
->dma
, 16);
5687 rx_filter
->size
= sizeof(struct be_cmd_req_rx_filter
);
5688 rx_filter
->va
= dma_zalloc_coherent(dev
, rx_filter
->size
,
5689 &rx_filter
->dma
, GFP_KERNEL
);
5690 if (!rx_filter
->va
) {
5695 if (lancer_chip(adapter
))
5696 stats_cmd
->size
= sizeof(struct lancer_cmd_req_pport_stats
);
5697 else if (BE2_chip(adapter
))
5698 stats_cmd
->size
= sizeof(struct be_cmd_req_get_stats_v0
);
5699 else if (BE3_chip(adapter
))
5700 stats_cmd
->size
= sizeof(struct be_cmd_req_get_stats_v1
);
5702 stats_cmd
->size
= sizeof(struct be_cmd_req_get_stats_v2
);
5703 stats_cmd
->va
= dma_zalloc_coherent(dev
, stats_cmd
->size
,
5704 &stats_cmd
->dma
, GFP_KERNEL
);
5705 if (!stats_cmd
->va
) {
5707 goto free_rx_filter
;
5710 mutex_init(&adapter
->mbox_lock
);
5711 mutex_init(&adapter
->mcc_lock
);
5712 mutex_init(&adapter
->rx_filter_lock
);
5713 spin_lock_init(&adapter
->mcc_cq_lock
);
5714 init_completion(&adapter
->et_cmd_compl
);
5716 pci_save_state(adapter
->pdev
);
5718 INIT_DELAYED_WORK(&adapter
->work
, be_worker
);
5720 adapter
->error_recovery
.recovery_state
= ERR_RECOVERY_ST_NONE
;
5721 adapter
->error_recovery
.resched_delay
= 0;
5722 INIT_DELAYED_WORK(&adapter
->error_recovery
.err_detection_work
,
5723 be_err_detection_task
);
5725 adapter
->rx_fc
= true;
5726 adapter
->tx_fc
= true;
5728 /* Must be a power of 2 or else MODULO will BUG_ON */
5729 adapter
->be_get_temp_freq
= 64;
5734 dma_free_coherent(dev
, rx_filter
->size
, rx_filter
->va
, rx_filter
->dma
);
5736 dma_free_coherent(dev
, mbox_mem_alloc
->size
, mbox_mem_alloc
->va
,
5737 mbox_mem_alloc
->dma
);
5741 static void be_remove(struct pci_dev
*pdev
)
5743 struct be_adapter
*adapter
= pci_get_drvdata(pdev
);
5748 be_roce_dev_remove(adapter
);
5749 be_intr_set(adapter
, false);
5751 be_cancel_err_detection(adapter
);
5753 unregister_netdev(adapter
->netdev
);
5757 if (!pci_vfs_assigned(adapter
->pdev
))
5758 be_cmd_reset_function(adapter
);
5760 /* tell fw we're done with firing cmds */
5761 be_cmd_fw_clean(adapter
);
5763 be_unmap_pci_bars(adapter
);
5764 be_drv_cleanup(adapter
);
5766 pci_disable_pcie_error_reporting(pdev
);
5768 pci_release_regions(pdev
);
5769 pci_disable_device(pdev
);
5771 free_netdev(adapter
->netdev
);
5774 static ssize_t
be_hwmon_show_temp(struct device
*dev
,
5775 struct device_attribute
*dev_attr
,
5778 struct be_adapter
*adapter
= dev_get_drvdata(dev
);
5780 /* Unit: millidegree Celsius */
5781 if (adapter
->hwmon_info
.be_on_die_temp
== BE_INVALID_DIE_TEMP
)
5784 return sprintf(buf
, "%u\n",
5785 adapter
->hwmon_info
.be_on_die_temp
* 1000);
5788 static SENSOR_DEVICE_ATTR(temp1_input
, S_IRUGO
,
5789 be_hwmon_show_temp
, NULL
, 1);
5791 static struct attribute
*be_hwmon_attrs
[] = {
5792 &sensor_dev_attr_temp1_input
.dev_attr
.attr
,
5796 ATTRIBUTE_GROUPS(be_hwmon
);
5798 static char *mc_name(struct be_adapter
*adapter
)
5800 char *str
= ""; /* default */
5802 switch (adapter
->mc_type
) {
5828 static inline char *func_name(struct be_adapter
*adapter
)
5830 return be_physfn(adapter
) ? "PF" : "VF";
5833 static inline char *nic_name(struct pci_dev
*pdev
)
5835 switch (pdev
->device
) {
5842 return OC_NAME_LANCER
;
5853 static int be_probe(struct pci_dev
*pdev
, const struct pci_device_id
*pdev_id
)
5855 struct be_adapter
*adapter
;
5856 struct net_device
*netdev
;
5859 dev_info(&pdev
->dev
, "%s version is %s\n", DRV_NAME
, DRV_VER
);
5861 status
= pci_enable_device(pdev
);
5865 status
= pci_request_regions(pdev
, DRV_NAME
);
5868 pci_set_master(pdev
);
5870 netdev
= alloc_etherdev_mqs(sizeof(*adapter
), MAX_TX_QS
, MAX_RX_QS
);
5875 adapter
= netdev_priv(netdev
);
5876 adapter
->pdev
= pdev
;
5877 pci_set_drvdata(pdev
, adapter
);
5878 adapter
->netdev
= netdev
;
5879 SET_NETDEV_DEV(netdev
, &pdev
->dev
);
5881 status
= dma_set_mask_and_coherent(&pdev
->dev
, DMA_BIT_MASK(64));
5883 netdev
->features
|= NETIF_F_HIGHDMA
;
5885 status
= dma_set_mask_and_coherent(&pdev
->dev
, DMA_BIT_MASK(32));
5887 dev_err(&pdev
->dev
, "Could not set PCI DMA Mask\n");
5892 status
= pci_enable_pcie_error_reporting(pdev
);
5894 dev_info(&pdev
->dev
, "PCIe error reporting enabled\n");
5896 status
= be_map_pci_bars(adapter
);
5900 status
= be_drv_init(adapter
);
5904 status
= be_setup(adapter
);
5908 be_netdev_init(netdev
);
5909 status
= register_netdev(netdev
);
5913 be_roce_dev_add(adapter
);
5915 be_schedule_err_detection(adapter
, ERR_DETECTION_DELAY
);
5916 adapter
->error_recovery
.probe_time
= jiffies
;
5918 /* On Die temperature not supported for VF. */
5919 if (be_physfn(adapter
) && IS_ENABLED(CONFIG_BE2NET_HWMON
)) {
5920 adapter
->hwmon_info
.hwmon_dev
=
5921 devm_hwmon_device_register_with_groups(&pdev
->dev
,
5925 adapter
->hwmon_info
.be_on_die_temp
= BE_INVALID_DIE_TEMP
;
5928 dev_info(&pdev
->dev
, "%s: %s %s port %c\n", nic_name(pdev
),
5929 func_name(adapter
), mc_name(adapter
), adapter
->port_name
);
5936 be_drv_cleanup(adapter
);
5938 be_unmap_pci_bars(adapter
);
5940 free_netdev(netdev
);
5942 pci_release_regions(pdev
);
5944 pci_disable_device(pdev
);
5946 dev_err(&pdev
->dev
, "%s initialization failed\n", nic_name(pdev
));
5950 static int be_suspend(struct pci_dev
*pdev
, pm_message_t state
)
5952 struct be_adapter
*adapter
= pci_get_drvdata(pdev
);
5954 be_intr_set(adapter
, false);
5955 be_cancel_err_detection(adapter
);
5957 be_cleanup(adapter
);
5959 pci_save_state(pdev
);
5960 pci_disable_device(pdev
);
5961 pci_set_power_state(pdev
, pci_choose_state(pdev
, state
));
5965 static int be_pci_resume(struct pci_dev
*pdev
)
5967 struct be_adapter
*adapter
= pci_get_drvdata(pdev
);
5970 status
= pci_enable_device(pdev
);
5974 pci_restore_state(pdev
);
5976 status
= be_resume(adapter
);
5980 be_schedule_err_detection(adapter
, ERR_DETECTION_DELAY
);
5986 * An FLR will stop BE from DMAing any data.
5988 static void be_shutdown(struct pci_dev
*pdev
)
5990 struct be_adapter
*adapter
= pci_get_drvdata(pdev
);
5995 be_roce_dev_shutdown(adapter
);
5996 cancel_delayed_work_sync(&adapter
->work
);
5997 be_cancel_err_detection(adapter
);
5999 netif_device_detach(adapter
->netdev
);
6001 be_cmd_reset_function(adapter
);
6003 pci_disable_device(pdev
);
6006 static pci_ers_result_t
be_eeh_err_detected(struct pci_dev
*pdev
,
6007 pci_channel_state_t state
)
6009 struct be_adapter
*adapter
= pci_get_drvdata(pdev
);
6011 dev_err(&adapter
->pdev
->dev
, "EEH error detected\n");
6013 be_roce_dev_remove(adapter
);
6015 if (!be_check_error(adapter
, BE_ERROR_EEH
)) {
6016 be_set_error(adapter
, BE_ERROR_EEH
);
6018 be_cancel_err_detection(adapter
);
6020 be_cleanup(adapter
);
6023 if (state
== pci_channel_io_perm_failure
)
6024 return PCI_ERS_RESULT_DISCONNECT
;
6026 pci_disable_device(pdev
);
6028 /* The error could cause the FW to trigger a flash debug dump.
6029 * Resetting the card while flash dump is in progress
6030 * can cause it not to recover; wait for it to finish.
6031 * Wait only for first function as it is needed only once per
6034 if (pdev
->devfn
== 0)
6037 return PCI_ERS_RESULT_NEED_RESET
;
6040 static pci_ers_result_t
be_eeh_reset(struct pci_dev
*pdev
)
6042 struct be_adapter
*adapter
= pci_get_drvdata(pdev
);
6045 dev_info(&adapter
->pdev
->dev
, "EEH reset\n");
6047 status
= pci_enable_device(pdev
);
6049 return PCI_ERS_RESULT_DISCONNECT
;
6051 pci_set_master(pdev
);
6052 pci_restore_state(pdev
);
6054 /* Check if card is ok and fw is ready */
6055 dev_info(&adapter
->pdev
->dev
,
6056 "Waiting for FW to be ready after EEH reset\n");
6057 status
= be_fw_wait_ready(adapter
);
6059 return PCI_ERS_RESULT_DISCONNECT
;
6061 pci_cleanup_aer_uncorrect_error_status(pdev
);
6062 be_clear_error(adapter
, BE_CLEAR_ALL
);
6063 return PCI_ERS_RESULT_RECOVERED
;
6066 static void be_eeh_resume(struct pci_dev
*pdev
)
6069 struct be_adapter
*adapter
= pci_get_drvdata(pdev
);
6071 dev_info(&adapter
->pdev
->dev
, "EEH resume\n");
6073 pci_save_state(pdev
);
6075 status
= be_resume(adapter
);
6079 be_roce_dev_add(adapter
);
6081 be_schedule_err_detection(adapter
, ERR_DETECTION_DELAY
);
6084 dev_err(&adapter
->pdev
->dev
, "EEH resume failed\n");
6087 static int be_pci_sriov_configure(struct pci_dev
*pdev
, int num_vfs
)
6089 struct be_adapter
*adapter
= pci_get_drvdata(pdev
);
6090 struct be_resources vft_res
= {0};
6094 be_vf_clear(adapter
);
6096 adapter
->num_vfs
= num_vfs
;
6098 if (adapter
->num_vfs
== 0 && pci_vfs_assigned(pdev
)) {
6099 dev_warn(&pdev
->dev
,
6100 "Cannot disable VFs while they are assigned\n");
6104 /* When the HW is in SRIOV capable configuration, the PF-pool resources
6105 * are equally distributed across the max-number of VFs. The user may
6106 * request only a subset of the max-vfs to be enabled.
6107 * Based on num_vfs, redistribute the resources across num_vfs so that
6108 * each VF will have access to more number of resources.
6109 * This facility is not available in BE3 FW.
6110 * Also, this is done by FW in Lancer chip.
6112 if (skyhawk_chip(adapter
) && !pci_num_vf(pdev
)) {
6113 be_calculate_vf_res(adapter
, adapter
->num_vfs
,
6115 status
= be_cmd_set_sriov_config(adapter
, adapter
->pool_res
,
6116 adapter
->num_vfs
, &vft_res
);
6119 "Failed to optimize SR-IOV resources\n");
6122 status
= be_get_resources(adapter
);
6124 return be_cmd_status(status
);
6126 /* Updating real_num_tx/rx_queues() requires rtnl_lock() */
6128 status
= be_update_queues(adapter
);
6131 return be_cmd_status(status
);
6133 if (adapter
->num_vfs
)
6134 status
= be_vf_setup(adapter
);
6137 return adapter
->num_vfs
;
6142 static const struct pci_error_handlers be_eeh_handlers
= {
6143 .error_detected
= be_eeh_err_detected
,
6144 .slot_reset
= be_eeh_reset
,
6145 .resume
= be_eeh_resume
,
6148 static struct pci_driver be_driver
= {
6150 .id_table
= be_dev_ids
,
6152 .remove
= be_remove
,
6153 .suspend
= be_suspend
,
6154 .resume
= be_pci_resume
,
6155 .shutdown
= be_shutdown
,
6156 .sriov_configure
= be_pci_sriov_configure
,
6157 .err_handler
= &be_eeh_handlers
6160 static int __init
be_init_module(void)
6164 if (rx_frag_size
!= 8192 && rx_frag_size
!= 4096 &&
6165 rx_frag_size
!= 2048) {
6166 printk(KERN_WARNING DRV_NAME
6167 " : Module param rx_frag_size must be 2048/4096/8192."
6169 rx_frag_size
= 2048;
6173 pr_info(DRV_NAME
" : Module param num_vfs is obsolete.");
6174 pr_info(DRV_NAME
" : Use sysfs method to enable VFs\n");
6177 be_wq
= create_singlethread_workqueue("be_wq");
6179 pr_warn(DRV_NAME
"workqueue creation failed\n");
6183 be_err_recovery_workq
=
6184 create_singlethread_workqueue("be_err_recover");
6185 if (!be_err_recovery_workq
)
6186 pr_warn(DRV_NAME
"Could not create error recovery workqueue\n");
6188 status
= pci_register_driver(&be_driver
);
6190 destroy_workqueue(be_wq
);
6191 be_destroy_err_recovery_workq();
6195 module_init(be_init_module
);
6197 static void __exit
be_exit_module(void)
6199 pci_unregister_driver(&be_driver
);
6201 be_destroy_err_recovery_workq();
6204 destroy_workqueue(be_wq
);
6206 module_exit(be_exit_module
);