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33 /* num_vfs module param is obsolete.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 static 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 static 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(adapter
->uc_list
[i
].mac
, mac
)) {
279 /* mac already added, skip addition */
280 adapter
->pmac_id
[0] = adapter
->pmac_id
[i
+ 1];
285 return be_cmd_pmac_add(adapter
, mac
, adapter
->if_handle
,
286 &adapter
->pmac_id
[0], 0);
289 static void be_dev_mac_del(struct be_adapter
*adapter
, int pmac_id
)
293 /* Skip deletion if the programmed mac is
294 * being used in uc-list
296 for (i
= 0; i
< adapter
->uc_macs
; i
++) {
297 if (adapter
->pmac_id
[i
+ 1] == pmac_id
)
300 be_cmd_pmac_del(adapter
, adapter
->if_handle
, pmac_id
, 0);
303 static int be_mac_addr_set(struct net_device
*netdev
, void *p
)
305 struct be_adapter
*adapter
= netdev_priv(netdev
);
306 struct device
*dev
= &adapter
->pdev
->dev
;
307 struct sockaddr
*addr
= p
;
310 u32 old_pmac_id
= adapter
->pmac_id
[0];
312 if (!is_valid_ether_addr(addr
->sa_data
))
313 return -EADDRNOTAVAIL
;
315 /* Proceed further only if, User provided MAC is different
318 if (ether_addr_equal(addr
->sa_data
, adapter
->dev_mac
))
321 /* BE3 VFs without FILTMGMT privilege are not allowed to set its MAC
324 if (BEx_chip(adapter
) && be_virtfn(adapter
) &&
325 !check_privilege(adapter
, BE_PRIV_FILTMGMT
))
328 /* if device is not running, copy MAC to netdev->dev_addr */
329 if (!netif_running(netdev
))
332 /* The PMAC_ADD cmd may fail if the VF doesn't have FILTMGMT
333 * privilege or if PF did not provision the new MAC address.
334 * On BE3, this cmd will always fail if the VF doesn't have the
335 * FILTMGMT privilege. This failure is OK, only if the PF programmed
336 * the MAC for the VF.
338 mutex_lock(&adapter
->rx_filter_lock
);
339 status
= be_dev_mac_add(adapter
, (u8
*)addr
->sa_data
);
342 /* Delete the old programmed MAC. This call may fail if the
343 * old MAC was already deleted by the PF driver.
345 if (adapter
->pmac_id
[0] != old_pmac_id
)
346 be_dev_mac_del(adapter
, old_pmac_id
);
349 mutex_unlock(&adapter
->rx_filter_lock
);
350 /* Decide if the new MAC is successfully activated only after
353 status
= be_cmd_get_active_mac(adapter
, adapter
->pmac_id
[0], mac
,
354 adapter
->if_handle
, true, 0);
358 /* The MAC change did not happen, either due to lack of privilege
359 * or PF didn't pre-provision.
361 if (!ether_addr_equal(addr
->sa_data
, mac
)) {
366 /* Remember currently programmed MAC */
367 ether_addr_copy(adapter
->dev_mac
, addr
->sa_data
);
369 ether_addr_copy(netdev
->dev_addr
, addr
->sa_data
);
370 dev_info(dev
, "MAC address changed to %pM\n", addr
->sa_data
);
373 dev_warn(dev
, "MAC address change to %pM failed\n", addr
->sa_data
);
377 /* BE2 supports only v0 cmd */
378 static void *hw_stats_from_cmd(struct be_adapter
*adapter
)
380 if (BE2_chip(adapter
)) {
381 struct be_cmd_resp_get_stats_v0
*cmd
= adapter
->stats_cmd
.va
;
383 return &cmd
->hw_stats
;
384 } else if (BE3_chip(adapter
)) {
385 struct be_cmd_resp_get_stats_v1
*cmd
= adapter
->stats_cmd
.va
;
387 return &cmd
->hw_stats
;
389 struct be_cmd_resp_get_stats_v2
*cmd
= adapter
->stats_cmd
.va
;
391 return &cmd
->hw_stats
;
395 /* BE2 supports only v0 cmd */
396 static void *be_erx_stats_from_cmd(struct be_adapter
*adapter
)
398 if (BE2_chip(adapter
)) {
399 struct be_hw_stats_v0
*hw_stats
= hw_stats_from_cmd(adapter
);
401 return &hw_stats
->erx
;
402 } else if (BE3_chip(adapter
)) {
403 struct be_hw_stats_v1
*hw_stats
= hw_stats_from_cmd(adapter
);
405 return &hw_stats
->erx
;
407 struct be_hw_stats_v2
*hw_stats
= hw_stats_from_cmd(adapter
);
409 return &hw_stats
->erx
;
413 static void populate_be_v0_stats(struct be_adapter
*adapter
)
415 struct be_hw_stats_v0
*hw_stats
= hw_stats_from_cmd(adapter
);
416 struct be_pmem_stats
*pmem_sts
= &hw_stats
->pmem
;
417 struct be_rxf_stats_v0
*rxf_stats
= &hw_stats
->rxf
;
418 struct be_port_rxf_stats_v0
*port_stats
=
419 &rxf_stats
->port
[adapter
->port_num
];
420 struct be_drv_stats
*drvs
= &adapter
->drv_stats
;
422 be_dws_le_to_cpu(hw_stats
, sizeof(*hw_stats
));
423 drvs
->rx_pause_frames
= port_stats
->rx_pause_frames
;
424 drvs
->rx_crc_errors
= port_stats
->rx_crc_errors
;
425 drvs
->rx_control_frames
= port_stats
->rx_control_frames
;
426 drvs
->rx_in_range_errors
= port_stats
->rx_in_range_errors
;
427 drvs
->rx_frame_too_long
= port_stats
->rx_frame_too_long
;
428 drvs
->rx_dropped_runt
= port_stats
->rx_dropped_runt
;
429 drvs
->rx_ip_checksum_errs
= port_stats
->rx_ip_checksum_errs
;
430 drvs
->rx_tcp_checksum_errs
= port_stats
->rx_tcp_checksum_errs
;
431 drvs
->rx_udp_checksum_errs
= port_stats
->rx_udp_checksum_errs
;
432 drvs
->rxpp_fifo_overflow_drop
= port_stats
->rx_fifo_overflow
;
433 drvs
->rx_dropped_tcp_length
= port_stats
->rx_dropped_tcp_length
;
434 drvs
->rx_dropped_too_small
= port_stats
->rx_dropped_too_small
;
435 drvs
->rx_dropped_too_short
= port_stats
->rx_dropped_too_short
;
436 drvs
->rx_out_range_errors
= port_stats
->rx_out_range_errors
;
437 drvs
->rx_input_fifo_overflow_drop
= port_stats
->rx_input_fifo_overflow
;
438 drvs
->rx_dropped_header_too_small
=
439 port_stats
->rx_dropped_header_too_small
;
440 drvs
->rx_address_filtered
=
441 port_stats
->rx_address_filtered
+
442 port_stats
->rx_vlan_filtered
;
443 drvs
->rx_alignment_symbol_errors
=
444 port_stats
->rx_alignment_symbol_errors
;
446 drvs
->tx_pauseframes
= port_stats
->tx_pauseframes
;
447 drvs
->tx_controlframes
= port_stats
->tx_controlframes
;
449 if (adapter
->port_num
)
450 drvs
->jabber_events
= rxf_stats
->port1_jabber_events
;
452 drvs
->jabber_events
= rxf_stats
->port0_jabber_events
;
453 drvs
->rx_drops_no_pbuf
= rxf_stats
->rx_drops_no_pbuf
;
454 drvs
->rx_drops_no_erx_descr
= rxf_stats
->rx_drops_no_erx_descr
;
455 drvs
->forwarded_packets
= rxf_stats
->forwarded_packets
;
456 drvs
->rx_drops_mtu
= rxf_stats
->rx_drops_mtu
;
457 drvs
->rx_drops_no_tpre_descr
= rxf_stats
->rx_drops_no_tpre_descr
;
458 drvs
->rx_drops_too_many_frags
= rxf_stats
->rx_drops_too_many_frags
;
459 adapter
->drv_stats
.eth_red_drops
= pmem_sts
->eth_red_drops
;
462 static void populate_be_v1_stats(struct be_adapter
*adapter
)
464 struct be_hw_stats_v1
*hw_stats
= hw_stats_from_cmd(adapter
);
465 struct be_pmem_stats
*pmem_sts
= &hw_stats
->pmem
;
466 struct be_rxf_stats_v1
*rxf_stats
= &hw_stats
->rxf
;
467 struct be_port_rxf_stats_v1
*port_stats
=
468 &rxf_stats
->port
[adapter
->port_num
];
469 struct be_drv_stats
*drvs
= &adapter
->drv_stats
;
471 be_dws_le_to_cpu(hw_stats
, sizeof(*hw_stats
));
472 drvs
->pmem_fifo_overflow_drop
= port_stats
->pmem_fifo_overflow_drop
;
473 drvs
->rx_priority_pause_frames
= port_stats
->rx_priority_pause_frames
;
474 drvs
->rx_pause_frames
= port_stats
->rx_pause_frames
;
475 drvs
->rx_crc_errors
= port_stats
->rx_crc_errors
;
476 drvs
->rx_control_frames
= port_stats
->rx_control_frames
;
477 drvs
->rx_in_range_errors
= port_stats
->rx_in_range_errors
;
478 drvs
->rx_frame_too_long
= port_stats
->rx_frame_too_long
;
479 drvs
->rx_dropped_runt
= port_stats
->rx_dropped_runt
;
480 drvs
->rx_ip_checksum_errs
= port_stats
->rx_ip_checksum_errs
;
481 drvs
->rx_tcp_checksum_errs
= port_stats
->rx_tcp_checksum_errs
;
482 drvs
->rx_udp_checksum_errs
= port_stats
->rx_udp_checksum_errs
;
483 drvs
->rx_dropped_tcp_length
= port_stats
->rx_dropped_tcp_length
;
484 drvs
->rx_dropped_too_small
= port_stats
->rx_dropped_too_small
;
485 drvs
->rx_dropped_too_short
= port_stats
->rx_dropped_too_short
;
486 drvs
->rx_out_range_errors
= port_stats
->rx_out_range_errors
;
487 drvs
->rx_dropped_header_too_small
=
488 port_stats
->rx_dropped_header_too_small
;
489 drvs
->rx_input_fifo_overflow_drop
=
490 port_stats
->rx_input_fifo_overflow_drop
;
491 drvs
->rx_address_filtered
= port_stats
->rx_address_filtered
;
492 drvs
->rx_alignment_symbol_errors
=
493 port_stats
->rx_alignment_symbol_errors
;
494 drvs
->rxpp_fifo_overflow_drop
= port_stats
->rxpp_fifo_overflow_drop
;
495 drvs
->tx_pauseframes
= port_stats
->tx_pauseframes
;
496 drvs
->tx_controlframes
= port_stats
->tx_controlframes
;
497 drvs
->tx_priority_pauseframes
= port_stats
->tx_priority_pauseframes
;
498 drvs
->jabber_events
= port_stats
->jabber_events
;
499 drvs
->rx_drops_no_pbuf
= rxf_stats
->rx_drops_no_pbuf
;
500 drvs
->rx_drops_no_erx_descr
= rxf_stats
->rx_drops_no_erx_descr
;
501 drvs
->forwarded_packets
= rxf_stats
->forwarded_packets
;
502 drvs
->rx_drops_mtu
= rxf_stats
->rx_drops_mtu
;
503 drvs
->rx_drops_no_tpre_descr
= rxf_stats
->rx_drops_no_tpre_descr
;
504 drvs
->rx_drops_too_many_frags
= rxf_stats
->rx_drops_too_many_frags
;
505 adapter
->drv_stats
.eth_red_drops
= pmem_sts
->eth_red_drops
;
508 static void populate_be_v2_stats(struct be_adapter
*adapter
)
510 struct be_hw_stats_v2
*hw_stats
= hw_stats_from_cmd(adapter
);
511 struct be_pmem_stats
*pmem_sts
= &hw_stats
->pmem
;
512 struct be_rxf_stats_v2
*rxf_stats
= &hw_stats
->rxf
;
513 struct be_port_rxf_stats_v2
*port_stats
=
514 &rxf_stats
->port
[adapter
->port_num
];
515 struct be_drv_stats
*drvs
= &adapter
->drv_stats
;
517 be_dws_le_to_cpu(hw_stats
, sizeof(*hw_stats
));
518 drvs
->pmem_fifo_overflow_drop
= port_stats
->pmem_fifo_overflow_drop
;
519 drvs
->rx_priority_pause_frames
= port_stats
->rx_priority_pause_frames
;
520 drvs
->rx_pause_frames
= port_stats
->rx_pause_frames
;
521 drvs
->rx_crc_errors
= port_stats
->rx_crc_errors
;
522 drvs
->rx_control_frames
= port_stats
->rx_control_frames
;
523 drvs
->rx_in_range_errors
= port_stats
->rx_in_range_errors
;
524 drvs
->rx_frame_too_long
= port_stats
->rx_frame_too_long
;
525 drvs
->rx_dropped_runt
= port_stats
->rx_dropped_runt
;
526 drvs
->rx_ip_checksum_errs
= port_stats
->rx_ip_checksum_errs
;
527 drvs
->rx_tcp_checksum_errs
= port_stats
->rx_tcp_checksum_errs
;
528 drvs
->rx_udp_checksum_errs
= port_stats
->rx_udp_checksum_errs
;
529 drvs
->rx_dropped_tcp_length
= port_stats
->rx_dropped_tcp_length
;
530 drvs
->rx_dropped_too_small
= port_stats
->rx_dropped_too_small
;
531 drvs
->rx_dropped_too_short
= port_stats
->rx_dropped_too_short
;
532 drvs
->rx_out_range_errors
= port_stats
->rx_out_range_errors
;
533 drvs
->rx_dropped_header_too_small
=
534 port_stats
->rx_dropped_header_too_small
;
535 drvs
->rx_input_fifo_overflow_drop
=
536 port_stats
->rx_input_fifo_overflow_drop
;
537 drvs
->rx_address_filtered
= port_stats
->rx_address_filtered
;
538 drvs
->rx_alignment_symbol_errors
=
539 port_stats
->rx_alignment_symbol_errors
;
540 drvs
->rxpp_fifo_overflow_drop
= port_stats
->rxpp_fifo_overflow_drop
;
541 drvs
->tx_pauseframes
= port_stats
->tx_pauseframes
;
542 drvs
->tx_controlframes
= port_stats
->tx_controlframes
;
543 drvs
->tx_priority_pauseframes
= port_stats
->tx_priority_pauseframes
;
544 drvs
->jabber_events
= port_stats
->jabber_events
;
545 drvs
->rx_drops_no_pbuf
= rxf_stats
->rx_drops_no_pbuf
;
546 drvs
->rx_drops_no_erx_descr
= rxf_stats
->rx_drops_no_erx_descr
;
547 drvs
->forwarded_packets
= rxf_stats
->forwarded_packets
;
548 drvs
->rx_drops_mtu
= rxf_stats
->rx_drops_mtu
;
549 drvs
->rx_drops_no_tpre_descr
= rxf_stats
->rx_drops_no_tpre_descr
;
550 drvs
->rx_drops_too_many_frags
= rxf_stats
->rx_drops_too_many_frags
;
551 adapter
->drv_stats
.eth_red_drops
= pmem_sts
->eth_red_drops
;
552 if (be_roce_supported(adapter
)) {
553 drvs
->rx_roce_bytes_lsd
= port_stats
->roce_bytes_received_lsd
;
554 drvs
->rx_roce_bytes_msd
= port_stats
->roce_bytes_received_msd
;
555 drvs
->rx_roce_frames
= port_stats
->roce_frames_received
;
556 drvs
->roce_drops_crc
= port_stats
->roce_drops_crc
;
557 drvs
->roce_drops_payload_len
=
558 port_stats
->roce_drops_payload_len
;
562 static void populate_lancer_stats(struct be_adapter
*adapter
)
564 struct be_drv_stats
*drvs
= &adapter
->drv_stats
;
565 struct lancer_pport_stats
*pport_stats
= pport_stats_from_cmd(adapter
);
567 be_dws_le_to_cpu(pport_stats
, sizeof(*pport_stats
));
568 drvs
->rx_pause_frames
= pport_stats
->rx_pause_frames_lo
;
569 drvs
->rx_crc_errors
= pport_stats
->rx_crc_errors_lo
;
570 drvs
->rx_control_frames
= pport_stats
->rx_control_frames_lo
;
571 drvs
->rx_in_range_errors
= pport_stats
->rx_in_range_errors
;
572 drvs
->rx_frame_too_long
= pport_stats
->rx_frames_too_long_lo
;
573 drvs
->rx_dropped_runt
= pport_stats
->rx_dropped_runt
;
574 drvs
->rx_ip_checksum_errs
= pport_stats
->rx_ip_checksum_errors
;
575 drvs
->rx_tcp_checksum_errs
= pport_stats
->rx_tcp_checksum_errors
;
576 drvs
->rx_udp_checksum_errs
= pport_stats
->rx_udp_checksum_errors
;
577 drvs
->rx_dropped_tcp_length
=
578 pport_stats
->rx_dropped_invalid_tcp_length
;
579 drvs
->rx_dropped_too_small
= pport_stats
->rx_dropped_too_small
;
580 drvs
->rx_dropped_too_short
= pport_stats
->rx_dropped_too_short
;
581 drvs
->rx_out_range_errors
= pport_stats
->rx_out_of_range_errors
;
582 drvs
->rx_dropped_header_too_small
=
583 pport_stats
->rx_dropped_header_too_small
;
584 drvs
->rx_input_fifo_overflow_drop
= pport_stats
->rx_fifo_overflow
;
585 drvs
->rx_address_filtered
=
586 pport_stats
->rx_address_filtered
+
587 pport_stats
->rx_vlan_filtered
;
588 drvs
->rx_alignment_symbol_errors
= pport_stats
->rx_symbol_errors_lo
;
589 drvs
->rxpp_fifo_overflow_drop
= pport_stats
->rx_fifo_overflow
;
590 drvs
->tx_pauseframes
= pport_stats
->tx_pause_frames_lo
;
591 drvs
->tx_controlframes
= pport_stats
->tx_control_frames_lo
;
592 drvs
->jabber_events
= pport_stats
->rx_jabbers
;
593 drvs
->forwarded_packets
= pport_stats
->num_forwards_lo
;
594 drvs
->rx_drops_mtu
= pport_stats
->rx_drops_mtu_lo
;
595 drvs
->rx_drops_too_many_frags
=
596 pport_stats
->rx_drops_too_many_frags_lo
;
599 static void accumulate_16bit_val(u32
*acc
, u16 val
)
601 #define lo(x) (x & 0xFFFF)
602 #define hi(x) (x & 0xFFFF0000)
603 bool wrapped
= val
< lo(*acc
);
604 u32 newacc
= hi(*acc
) + val
;
608 ACCESS_ONCE(*acc
) = newacc
;
611 static void populate_erx_stats(struct be_adapter
*adapter
,
612 struct be_rx_obj
*rxo
, u32 erx_stat
)
614 if (!BEx_chip(adapter
))
615 rx_stats(rxo
)->rx_drops_no_frags
= erx_stat
;
617 /* below erx HW counter can actually wrap around after
618 * 65535. Driver accumulates a 32-bit value
620 accumulate_16bit_val(&rx_stats(rxo
)->rx_drops_no_frags
,
624 void be_parse_stats(struct be_adapter
*adapter
)
626 struct be_erx_stats_v2
*erx
= be_erx_stats_from_cmd(adapter
);
627 struct be_rx_obj
*rxo
;
631 if (lancer_chip(adapter
)) {
632 populate_lancer_stats(adapter
);
634 if (BE2_chip(adapter
))
635 populate_be_v0_stats(adapter
);
636 else if (BE3_chip(adapter
))
638 populate_be_v1_stats(adapter
);
640 populate_be_v2_stats(adapter
);
642 /* erx_v2 is longer than v0, v1. use v2 for v0, v1 access */
643 for_all_rx_queues(adapter
, rxo
, i
) {
644 erx_stat
= erx
->rx_drops_no_fragments
[rxo
->q
.id
];
645 populate_erx_stats(adapter
, rxo
, erx_stat
);
650 static void be_get_stats64(struct net_device
*netdev
,
651 struct rtnl_link_stats64
*stats
)
653 struct be_adapter
*adapter
= netdev_priv(netdev
);
654 struct be_drv_stats
*drvs
= &adapter
->drv_stats
;
655 struct be_rx_obj
*rxo
;
656 struct be_tx_obj
*txo
;
661 for_all_rx_queues(adapter
, rxo
, i
) {
662 const struct be_rx_stats
*rx_stats
= rx_stats(rxo
);
665 start
= u64_stats_fetch_begin_irq(&rx_stats
->sync
);
666 pkts
= rx_stats(rxo
)->rx_pkts
;
667 bytes
= rx_stats(rxo
)->rx_bytes
;
668 } while (u64_stats_fetch_retry_irq(&rx_stats
->sync
, start
));
669 stats
->rx_packets
+= pkts
;
670 stats
->rx_bytes
+= bytes
;
671 stats
->multicast
+= rx_stats(rxo
)->rx_mcast_pkts
;
672 stats
->rx_dropped
+= rx_stats(rxo
)->rx_drops_no_skbs
+
673 rx_stats(rxo
)->rx_drops_no_frags
;
676 for_all_tx_queues(adapter
, txo
, i
) {
677 const struct be_tx_stats
*tx_stats
= tx_stats(txo
);
680 start
= u64_stats_fetch_begin_irq(&tx_stats
->sync
);
681 pkts
= tx_stats(txo
)->tx_pkts
;
682 bytes
= tx_stats(txo
)->tx_bytes
;
683 } while (u64_stats_fetch_retry_irq(&tx_stats
->sync
, start
));
684 stats
->tx_packets
+= pkts
;
685 stats
->tx_bytes
+= bytes
;
688 /* bad pkts received */
689 stats
->rx_errors
= drvs
->rx_crc_errors
+
690 drvs
->rx_alignment_symbol_errors
+
691 drvs
->rx_in_range_errors
+
692 drvs
->rx_out_range_errors
+
693 drvs
->rx_frame_too_long
+
694 drvs
->rx_dropped_too_small
+
695 drvs
->rx_dropped_too_short
+
696 drvs
->rx_dropped_header_too_small
+
697 drvs
->rx_dropped_tcp_length
+
698 drvs
->rx_dropped_runt
;
700 /* detailed rx errors */
701 stats
->rx_length_errors
= drvs
->rx_in_range_errors
+
702 drvs
->rx_out_range_errors
+
703 drvs
->rx_frame_too_long
;
705 stats
->rx_crc_errors
= drvs
->rx_crc_errors
;
707 /* frame alignment errors */
708 stats
->rx_frame_errors
= drvs
->rx_alignment_symbol_errors
;
710 /* receiver fifo overrun */
711 /* drops_no_pbuf is no per i/f, it's per BE card */
712 stats
->rx_fifo_errors
= drvs
->rxpp_fifo_overflow_drop
+
713 drvs
->rx_input_fifo_overflow_drop
+
714 drvs
->rx_drops_no_pbuf
;
717 void be_link_status_update(struct be_adapter
*adapter
, u8 link_status
)
719 struct net_device
*netdev
= adapter
->netdev
;
721 if (!(adapter
->flags
& BE_FLAGS_LINK_STATUS_INIT
)) {
722 netif_carrier_off(netdev
);
723 adapter
->flags
|= BE_FLAGS_LINK_STATUS_INIT
;
727 netif_carrier_on(netdev
);
729 netif_carrier_off(netdev
);
731 netdev_info(netdev
, "Link is %s\n", link_status
? "Up" : "Down");
734 static int be_gso_hdr_len(struct sk_buff
*skb
)
736 if (skb
->encapsulation
)
737 return skb_inner_transport_offset(skb
) +
738 inner_tcp_hdrlen(skb
);
739 return skb_transport_offset(skb
) + tcp_hdrlen(skb
);
742 static void be_tx_stats_update(struct be_tx_obj
*txo
, struct sk_buff
*skb
)
744 struct be_tx_stats
*stats
= tx_stats(txo
);
745 u32 tx_pkts
= skb_shinfo(skb
)->gso_segs
? : 1;
746 /* Account for headers which get duplicated in TSO pkt */
747 u32 dup_hdr_len
= tx_pkts
> 1 ? be_gso_hdr_len(skb
) * (tx_pkts
- 1) : 0;
749 u64_stats_update_begin(&stats
->sync
);
751 stats
->tx_bytes
+= skb
->len
+ dup_hdr_len
;
752 stats
->tx_pkts
+= tx_pkts
;
753 if (skb
->encapsulation
&& skb
->ip_summed
== CHECKSUM_PARTIAL
)
754 stats
->tx_vxlan_offload_pkts
+= tx_pkts
;
755 u64_stats_update_end(&stats
->sync
);
758 /* Returns number of WRBs needed for the skb */
759 static u32
skb_wrb_cnt(struct sk_buff
*skb
)
761 /* +1 for the header wrb */
762 return 1 + (skb_headlen(skb
) ? 1 : 0) + skb_shinfo(skb
)->nr_frags
;
765 static inline void wrb_fill(struct be_eth_wrb
*wrb
, u64 addr
, int len
)
767 wrb
->frag_pa_hi
= cpu_to_le32(upper_32_bits(addr
));
768 wrb
->frag_pa_lo
= cpu_to_le32(lower_32_bits(addr
));
769 wrb
->frag_len
= cpu_to_le32(len
& ETH_WRB_FRAG_LEN_MASK
);
773 /* A dummy wrb is just all zeros. Using a separate routine for dummy-wrb
774 * to avoid the swap and shift/mask operations in wrb_fill().
776 static inline void wrb_fill_dummy(struct be_eth_wrb
*wrb
)
784 static inline u16
be_get_tx_vlan_tag(struct be_adapter
*adapter
,
790 vlan_tag
= skb_vlan_tag_get(skb
);
791 vlan_prio
= (vlan_tag
& VLAN_PRIO_MASK
) >> VLAN_PRIO_SHIFT
;
792 /* If vlan priority provided by OS is NOT in available bmap */
793 if (!(adapter
->vlan_prio_bmap
& (1 << vlan_prio
)))
794 vlan_tag
= (vlan_tag
& ~VLAN_PRIO_MASK
) |
795 adapter
->recommended_prio_bits
;
800 /* Used only for IP tunnel packets */
801 static u16
skb_inner_ip_proto(struct sk_buff
*skb
)
803 return (inner_ip_hdr(skb
)->version
== 4) ?
804 inner_ip_hdr(skb
)->protocol
: inner_ipv6_hdr(skb
)->nexthdr
;
807 static u16
skb_ip_proto(struct sk_buff
*skb
)
809 return (ip_hdr(skb
)->version
== 4) ?
810 ip_hdr(skb
)->protocol
: ipv6_hdr(skb
)->nexthdr
;
813 static inline bool be_is_txq_full(struct be_tx_obj
*txo
)
815 return atomic_read(&txo
->q
.used
) + BE_MAX_TX_FRAG_COUNT
>= txo
->q
.len
;
818 static inline bool be_can_txq_wake(struct be_tx_obj
*txo
)
820 return atomic_read(&txo
->q
.used
) < txo
->q
.len
/ 2;
823 static inline bool be_is_tx_compl_pending(struct be_tx_obj
*txo
)
825 return atomic_read(&txo
->q
.used
) > txo
->pend_wrb_cnt
;
828 static void be_get_wrb_params_from_skb(struct be_adapter
*adapter
,
830 struct be_wrb_params
*wrb_params
)
834 if (skb_is_gso(skb
)) {
835 BE_WRB_F_SET(wrb_params
->features
, LSO
, 1);
836 wrb_params
->lso_mss
= skb_shinfo(skb
)->gso_size
;
837 if (skb_is_gso_v6(skb
) && !lancer_chip(adapter
))
838 BE_WRB_F_SET(wrb_params
->features
, LSO6
, 1);
839 } else if (skb
->ip_summed
== CHECKSUM_PARTIAL
) {
840 if (skb
->encapsulation
) {
841 BE_WRB_F_SET(wrb_params
->features
, IPCS
, 1);
842 proto
= skb_inner_ip_proto(skb
);
844 proto
= skb_ip_proto(skb
);
846 if (proto
== IPPROTO_TCP
)
847 BE_WRB_F_SET(wrb_params
->features
, TCPCS
, 1);
848 else if (proto
== IPPROTO_UDP
)
849 BE_WRB_F_SET(wrb_params
->features
, UDPCS
, 1);
852 if (skb_vlan_tag_present(skb
)) {
853 BE_WRB_F_SET(wrb_params
->features
, VLAN
, 1);
854 wrb_params
->vlan_tag
= be_get_tx_vlan_tag(adapter
, skb
);
857 BE_WRB_F_SET(wrb_params
->features
, CRC
, 1);
860 static void wrb_fill_hdr(struct be_adapter
*adapter
,
861 struct be_eth_hdr_wrb
*hdr
,
862 struct be_wrb_params
*wrb_params
,
865 memset(hdr
, 0, sizeof(*hdr
));
867 SET_TX_WRB_HDR_BITS(crc
, hdr
,
868 BE_WRB_F_GET(wrb_params
->features
, CRC
));
869 SET_TX_WRB_HDR_BITS(ipcs
, hdr
,
870 BE_WRB_F_GET(wrb_params
->features
, IPCS
));
871 SET_TX_WRB_HDR_BITS(tcpcs
, hdr
,
872 BE_WRB_F_GET(wrb_params
->features
, TCPCS
));
873 SET_TX_WRB_HDR_BITS(udpcs
, hdr
,
874 BE_WRB_F_GET(wrb_params
->features
, UDPCS
));
876 SET_TX_WRB_HDR_BITS(lso
, hdr
,
877 BE_WRB_F_GET(wrb_params
->features
, LSO
));
878 SET_TX_WRB_HDR_BITS(lso6
, hdr
,
879 BE_WRB_F_GET(wrb_params
->features
, LSO6
));
880 SET_TX_WRB_HDR_BITS(lso_mss
, hdr
, wrb_params
->lso_mss
);
882 /* Hack to skip HW VLAN tagging needs evt = 1, compl = 0. When this
883 * hack is not needed, the evt bit is set while ringing DB.
885 SET_TX_WRB_HDR_BITS(event
, hdr
,
886 BE_WRB_F_GET(wrb_params
->features
, VLAN_SKIP_HW
));
887 SET_TX_WRB_HDR_BITS(vlan
, hdr
,
888 BE_WRB_F_GET(wrb_params
->features
, VLAN
));
889 SET_TX_WRB_HDR_BITS(vlan_tag
, hdr
, wrb_params
->vlan_tag
);
891 SET_TX_WRB_HDR_BITS(num_wrb
, hdr
, skb_wrb_cnt(skb
));
892 SET_TX_WRB_HDR_BITS(len
, hdr
, skb
->len
);
893 SET_TX_WRB_HDR_BITS(mgmt
, hdr
,
894 BE_WRB_F_GET(wrb_params
->features
, OS2BMC
));
897 static void unmap_tx_frag(struct device
*dev
, struct be_eth_wrb
*wrb
,
901 u32 frag_len
= le32_to_cpu(wrb
->frag_len
);
904 dma
= (u64
)le32_to_cpu(wrb
->frag_pa_hi
) << 32 |
905 (u64
)le32_to_cpu(wrb
->frag_pa_lo
);
908 dma_unmap_single(dev
, dma
, frag_len
, DMA_TO_DEVICE
);
910 dma_unmap_page(dev
, dma
, frag_len
, DMA_TO_DEVICE
);
914 /* Grab a WRB header for xmit */
915 static u32
be_tx_get_wrb_hdr(struct be_tx_obj
*txo
)
917 u32 head
= txo
->q
.head
;
919 queue_head_inc(&txo
->q
);
923 /* Set up the WRB header for xmit */
924 static void be_tx_setup_wrb_hdr(struct be_adapter
*adapter
,
925 struct be_tx_obj
*txo
,
926 struct be_wrb_params
*wrb_params
,
927 struct sk_buff
*skb
, u16 head
)
929 u32 num_frags
= skb_wrb_cnt(skb
);
930 struct be_queue_info
*txq
= &txo
->q
;
931 struct be_eth_hdr_wrb
*hdr
= queue_index_node(txq
, head
);
933 wrb_fill_hdr(adapter
, hdr
, wrb_params
, skb
);
934 be_dws_cpu_to_le(hdr
, sizeof(*hdr
));
936 BUG_ON(txo
->sent_skb_list
[head
]);
937 txo
->sent_skb_list
[head
] = skb
;
938 txo
->last_req_hdr
= head
;
939 atomic_add(num_frags
, &txq
->used
);
940 txo
->last_req_wrb_cnt
= num_frags
;
941 txo
->pend_wrb_cnt
+= num_frags
;
944 /* Setup a WRB fragment (buffer descriptor) for xmit */
945 static void be_tx_setup_wrb_frag(struct be_tx_obj
*txo
, dma_addr_t busaddr
,
948 struct be_eth_wrb
*wrb
;
949 struct be_queue_info
*txq
= &txo
->q
;
951 wrb
= queue_head_node(txq
);
952 wrb_fill(wrb
, busaddr
, len
);
956 /* Bring the queue back to the state it was in before be_xmit_enqueue() routine
957 * was invoked. The producer index is restored to the previous packet and the
958 * WRBs of the current packet are unmapped. Invoked to handle tx setup errors.
960 static void be_xmit_restore(struct be_adapter
*adapter
,
961 struct be_tx_obj
*txo
, u32 head
, bool map_single
,
965 struct be_eth_wrb
*wrb
;
966 struct be_queue_info
*txq
= &txo
->q
;
968 dev
= &adapter
->pdev
->dev
;
971 /* skip the first wrb (hdr); it's not mapped */
974 wrb
= queue_head_node(txq
);
975 unmap_tx_frag(dev
, wrb
, map_single
);
977 copied
-= le32_to_cpu(wrb
->frag_len
);
984 /* Enqueue the given packet for transmit. This routine allocates WRBs for the
985 * packet, dma maps the packet buffers and sets up the WRBs. Returns the number
986 * of WRBs used up by the packet.
988 static u32
be_xmit_enqueue(struct be_adapter
*adapter
, struct be_tx_obj
*txo
,
990 struct be_wrb_params
*wrb_params
)
992 u32 i
, copied
= 0, wrb_cnt
= skb_wrb_cnt(skb
);
993 struct device
*dev
= &adapter
->pdev
->dev
;
994 struct be_queue_info
*txq
= &txo
->q
;
995 bool map_single
= false;
996 u32 head
= txq
->head
;
1000 head
= be_tx_get_wrb_hdr(txo
);
1002 if (skb
->len
> skb
->data_len
) {
1003 len
= skb_headlen(skb
);
1005 busaddr
= dma_map_single(dev
, skb
->data
, len
, DMA_TO_DEVICE
);
1006 if (dma_mapping_error(dev
, busaddr
))
1009 be_tx_setup_wrb_frag(txo
, busaddr
, len
);
1013 for (i
= 0; i
< skb_shinfo(skb
)->nr_frags
; i
++) {
1014 const struct skb_frag_struct
*frag
= &skb_shinfo(skb
)->frags
[i
];
1015 len
= skb_frag_size(frag
);
1017 busaddr
= skb_frag_dma_map(dev
, frag
, 0, len
, DMA_TO_DEVICE
);
1018 if (dma_mapping_error(dev
, busaddr
))
1020 be_tx_setup_wrb_frag(txo
, busaddr
, len
);
1024 be_tx_setup_wrb_hdr(adapter
, txo
, wrb_params
, skb
, head
);
1026 be_tx_stats_update(txo
, skb
);
1030 adapter
->drv_stats
.dma_map_errors
++;
1031 be_xmit_restore(adapter
, txo
, head
, map_single
, copied
);
1035 static inline int qnq_async_evt_rcvd(struct be_adapter
*adapter
)
1037 return adapter
->flags
& BE_FLAGS_QNQ_ASYNC_EVT_RCVD
;
1040 static struct sk_buff
*be_insert_vlan_in_pkt(struct be_adapter
*adapter
,
1041 struct sk_buff
*skb
,
1042 struct be_wrb_params
1047 skb
= skb_share_check(skb
, GFP_ATOMIC
);
1051 if (skb_vlan_tag_present(skb
))
1052 vlan_tag
= be_get_tx_vlan_tag(adapter
, skb
);
1054 if (qnq_async_evt_rcvd(adapter
) && adapter
->pvid
) {
1056 vlan_tag
= adapter
->pvid
;
1057 /* f/w workaround to set skip_hw_vlan = 1, informs the F/W to
1058 * skip VLAN insertion
1060 BE_WRB_F_SET(wrb_params
->features
, VLAN_SKIP_HW
, 1);
1064 skb
= vlan_insert_tag_set_proto(skb
, htons(ETH_P_8021Q
),
1071 /* Insert the outer VLAN, if any */
1072 if (adapter
->qnq_vid
) {
1073 vlan_tag
= adapter
->qnq_vid
;
1074 skb
= vlan_insert_tag_set_proto(skb
, htons(ETH_P_8021Q
),
1078 BE_WRB_F_SET(wrb_params
->features
, VLAN_SKIP_HW
, 1);
1084 static bool be_ipv6_exthdr_check(struct sk_buff
*skb
)
1086 struct ethhdr
*eh
= (struct ethhdr
*)skb
->data
;
1087 u16 offset
= ETH_HLEN
;
1089 if (eh
->h_proto
== htons(ETH_P_IPV6
)) {
1090 struct ipv6hdr
*ip6h
= (struct ipv6hdr
*)(skb
->data
+ offset
);
1092 offset
+= sizeof(struct ipv6hdr
);
1093 if (ip6h
->nexthdr
!= NEXTHDR_TCP
&&
1094 ip6h
->nexthdr
!= NEXTHDR_UDP
) {
1095 struct ipv6_opt_hdr
*ehdr
=
1096 (struct ipv6_opt_hdr
*)(skb
->data
+ offset
);
1098 /* offending pkt: 2nd byte following IPv6 hdr is 0xff */
1099 if (ehdr
->hdrlen
== 0xff)
1106 static int be_vlan_tag_tx_chk(struct be_adapter
*adapter
, struct sk_buff
*skb
)
1108 return skb_vlan_tag_present(skb
) || adapter
->pvid
|| adapter
->qnq_vid
;
1111 static int be_ipv6_tx_stall_chk(struct be_adapter
*adapter
, struct sk_buff
*skb
)
1113 return BE3_chip(adapter
) && be_ipv6_exthdr_check(skb
);
1116 static struct sk_buff
*be_lancer_xmit_workarounds(struct be_adapter
*adapter
,
1117 struct sk_buff
*skb
,
1118 struct be_wrb_params
1121 struct vlan_ethhdr
*veh
= (struct vlan_ethhdr
*)skb
->data
;
1122 unsigned int eth_hdr_len
;
1125 /* For padded packets, BE HW modifies tot_len field in IP header
1126 * incorrecly when VLAN tag is inserted by HW.
1127 * For padded packets, Lancer computes incorrect checksum.
1129 eth_hdr_len
= ntohs(skb
->protocol
) == ETH_P_8021Q
?
1130 VLAN_ETH_HLEN
: ETH_HLEN
;
1131 if (skb
->len
<= 60 &&
1132 (lancer_chip(adapter
) || skb_vlan_tag_present(skb
)) &&
1134 ip
= (struct iphdr
*)ip_hdr(skb
);
1135 pskb_trim(skb
, eth_hdr_len
+ ntohs(ip
->tot_len
));
1138 /* If vlan tag is already inlined in the packet, skip HW VLAN
1139 * tagging in pvid-tagging mode
1141 if (be_pvid_tagging_enabled(adapter
) &&
1142 veh
->h_vlan_proto
== htons(ETH_P_8021Q
))
1143 BE_WRB_F_SET(wrb_params
->features
, VLAN_SKIP_HW
, 1);
1145 /* HW has a bug wherein it will calculate CSUM for VLAN
1146 * pkts even though it is disabled.
1147 * Manually insert VLAN in pkt.
1149 if (skb
->ip_summed
!= CHECKSUM_PARTIAL
&&
1150 skb_vlan_tag_present(skb
)) {
1151 skb
= be_insert_vlan_in_pkt(adapter
, skb
, wrb_params
);
1156 /* HW may lockup when VLAN HW tagging is requested on
1157 * certain ipv6 packets. Drop such pkts if the HW workaround to
1158 * skip HW tagging is not enabled by FW.
1160 if (unlikely(be_ipv6_tx_stall_chk(adapter
, skb
) &&
1161 (adapter
->pvid
|| adapter
->qnq_vid
) &&
1162 !qnq_async_evt_rcvd(adapter
)))
1165 /* Manual VLAN tag insertion to prevent:
1166 * ASIC lockup when the ASIC inserts VLAN tag into
1167 * certain ipv6 packets. Insert VLAN tags in driver,
1168 * and set event, completion, vlan bits accordingly
1171 if (be_ipv6_tx_stall_chk(adapter
, skb
) &&
1172 be_vlan_tag_tx_chk(adapter
, skb
)) {
1173 skb
= be_insert_vlan_in_pkt(adapter
, skb
, wrb_params
);
1180 dev_kfree_skb_any(skb
);
1185 static struct sk_buff
*be_xmit_workarounds(struct be_adapter
*adapter
,
1186 struct sk_buff
*skb
,
1187 struct be_wrb_params
*wrb_params
)
1191 /* Lancer, SH and BE3 in SRIOV mode have a bug wherein
1192 * packets that are 32b or less may cause a transmit stall
1193 * on that port. The workaround is to pad such packets
1194 * (len <= 32 bytes) to a minimum length of 36b.
1196 if (skb
->len
<= 32) {
1197 if (skb_put_padto(skb
, 36))
1201 if (BEx_chip(adapter
) || lancer_chip(adapter
)) {
1202 skb
= be_lancer_xmit_workarounds(adapter
, skb
, wrb_params
);
1207 /* The stack can send us skbs with length greater than
1208 * what the HW can handle. Trim the extra bytes.
1210 WARN_ON_ONCE(skb
->len
> BE_MAX_GSO_SIZE
);
1211 err
= pskb_trim(skb
, BE_MAX_GSO_SIZE
);
1217 static void be_xmit_flush(struct be_adapter
*adapter
, struct be_tx_obj
*txo
)
1219 struct be_queue_info
*txq
= &txo
->q
;
1220 struct be_eth_hdr_wrb
*hdr
= queue_index_node(txq
, txo
->last_req_hdr
);
1222 /* Mark the last request eventable if it hasn't been marked already */
1223 if (!(hdr
->dw
[2] & cpu_to_le32(TX_HDR_WRB_EVT
)))
1224 hdr
->dw
[2] |= cpu_to_le32(TX_HDR_WRB_EVT
| TX_HDR_WRB_COMPL
);
1226 /* compose a dummy wrb if there are odd set of wrbs to notify */
1227 if (!lancer_chip(adapter
) && (txo
->pend_wrb_cnt
& 1)) {
1228 wrb_fill_dummy(queue_head_node(txq
));
1229 queue_head_inc(txq
);
1230 atomic_inc(&txq
->used
);
1231 txo
->pend_wrb_cnt
++;
1232 hdr
->dw
[2] &= ~cpu_to_le32(TX_HDR_WRB_NUM_MASK
<<
1233 TX_HDR_WRB_NUM_SHIFT
);
1234 hdr
->dw
[2] |= cpu_to_le32((txo
->last_req_wrb_cnt
+ 1) <<
1235 TX_HDR_WRB_NUM_SHIFT
);
1237 be_txq_notify(adapter
, txo
, txo
->pend_wrb_cnt
);
1238 txo
->pend_wrb_cnt
= 0;
1241 /* OS2BMC related */
1243 #define DHCP_CLIENT_PORT 68
1244 #define DHCP_SERVER_PORT 67
1245 #define NET_BIOS_PORT1 137
1246 #define NET_BIOS_PORT2 138
1247 #define DHCPV6_RAS_PORT 547
1249 #define is_mc_allowed_on_bmc(adapter, eh) \
1250 (!is_multicast_filt_enabled(adapter) && \
1251 is_multicast_ether_addr(eh->h_dest) && \
1252 !is_broadcast_ether_addr(eh->h_dest))
1254 #define is_bc_allowed_on_bmc(adapter, eh) \
1255 (!is_broadcast_filt_enabled(adapter) && \
1256 is_broadcast_ether_addr(eh->h_dest))
1258 #define is_arp_allowed_on_bmc(adapter, skb) \
1259 (is_arp(skb) && is_arp_filt_enabled(adapter))
1261 #define is_broadcast_packet(eh, adapter) \
1262 (is_multicast_ether_addr(eh->h_dest) && \
1263 !compare_ether_addr(eh->h_dest, adapter->netdev->broadcast))
1265 #define is_arp(skb) (skb->protocol == htons(ETH_P_ARP))
1267 #define is_arp_filt_enabled(adapter) \
1268 (adapter->bmc_filt_mask & (BMC_FILT_BROADCAST_ARP))
1270 #define is_dhcp_client_filt_enabled(adapter) \
1271 (adapter->bmc_filt_mask & BMC_FILT_BROADCAST_DHCP_CLIENT)
1273 #define is_dhcp_srvr_filt_enabled(adapter) \
1274 (adapter->bmc_filt_mask & BMC_FILT_BROADCAST_DHCP_SERVER)
1276 #define is_nbios_filt_enabled(adapter) \
1277 (adapter->bmc_filt_mask & BMC_FILT_BROADCAST_NET_BIOS)
1279 #define is_ipv6_na_filt_enabled(adapter) \
1280 (adapter->bmc_filt_mask & \
1281 BMC_FILT_MULTICAST_IPV6_NEIGH_ADVER)
1283 #define is_ipv6_ra_filt_enabled(adapter) \
1284 (adapter->bmc_filt_mask & BMC_FILT_MULTICAST_IPV6_RA)
1286 #define is_ipv6_ras_filt_enabled(adapter) \
1287 (adapter->bmc_filt_mask & BMC_FILT_MULTICAST_IPV6_RAS)
1289 #define is_broadcast_filt_enabled(adapter) \
1290 (adapter->bmc_filt_mask & BMC_FILT_BROADCAST)
1292 #define is_multicast_filt_enabled(adapter) \
1293 (adapter->bmc_filt_mask & BMC_FILT_MULTICAST)
1295 static bool be_send_pkt_to_bmc(struct be_adapter
*adapter
,
1296 struct sk_buff
**skb
)
1298 struct ethhdr
*eh
= (struct ethhdr
*)(*skb
)->data
;
1299 bool os2bmc
= false;
1301 if (!be_is_os2bmc_enabled(adapter
))
1304 if (!is_multicast_ether_addr(eh
->h_dest
))
1307 if (is_mc_allowed_on_bmc(adapter
, eh
) ||
1308 is_bc_allowed_on_bmc(adapter
, eh
) ||
1309 is_arp_allowed_on_bmc(adapter
, (*skb
))) {
1314 if ((*skb
)->protocol
== htons(ETH_P_IPV6
)) {
1315 struct ipv6hdr
*hdr
= ipv6_hdr((*skb
));
1316 u8 nexthdr
= hdr
->nexthdr
;
1318 if (nexthdr
== IPPROTO_ICMPV6
) {
1319 struct icmp6hdr
*icmp6
= icmp6_hdr((*skb
));
1321 switch (icmp6
->icmp6_type
) {
1322 case NDISC_ROUTER_ADVERTISEMENT
:
1323 os2bmc
= is_ipv6_ra_filt_enabled(adapter
);
1325 case NDISC_NEIGHBOUR_ADVERTISEMENT
:
1326 os2bmc
= is_ipv6_na_filt_enabled(adapter
);
1334 if (is_udp_pkt((*skb
))) {
1335 struct udphdr
*udp
= udp_hdr((*skb
));
1337 switch (ntohs(udp
->dest
)) {
1338 case DHCP_CLIENT_PORT
:
1339 os2bmc
= is_dhcp_client_filt_enabled(adapter
);
1341 case DHCP_SERVER_PORT
:
1342 os2bmc
= is_dhcp_srvr_filt_enabled(adapter
);
1344 case NET_BIOS_PORT1
:
1345 case NET_BIOS_PORT2
:
1346 os2bmc
= is_nbios_filt_enabled(adapter
);
1348 case DHCPV6_RAS_PORT
:
1349 os2bmc
= is_ipv6_ras_filt_enabled(adapter
);
1356 /* For packets over a vlan, which are destined
1357 * to BMC, asic expects the vlan to be inline in the packet.
1360 *skb
= be_insert_vlan_in_pkt(adapter
, *skb
, NULL
);
1365 static netdev_tx_t
be_xmit(struct sk_buff
*skb
, struct net_device
*netdev
)
1367 struct be_adapter
*adapter
= netdev_priv(netdev
);
1368 u16 q_idx
= skb_get_queue_mapping(skb
);
1369 struct be_tx_obj
*txo
= &adapter
->tx_obj
[q_idx
];
1370 struct be_wrb_params wrb_params
= { 0 };
1371 bool flush
= !skb
->xmit_more
;
1374 skb
= be_xmit_workarounds(adapter
, skb
, &wrb_params
);
1378 be_get_wrb_params_from_skb(adapter
, skb
, &wrb_params
);
1380 wrb_cnt
= be_xmit_enqueue(adapter
, txo
, skb
, &wrb_params
);
1381 if (unlikely(!wrb_cnt
)) {
1382 dev_kfree_skb_any(skb
);
1386 /* if os2bmc is enabled and if the pkt is destined to bmc,
1387 * enqueue the pkt a 2nd time with mgmt bit set.
1389 if (be_send_pkt_to_bmc(adapter
, &skb
)) {
1390 BE_WRB_F_SET(wrb_params
.features
, OS2BMC
, 1);
1391 wrb_cnt
= be_xmit_enqueue(adapter
, txo
, skb
, &wrb_params
);
1392 if (unlikely(!wrb_cnt
))
1398 if (be_is_txq_full(txo
)) {
1399 netif_stop_subqueue(netdev
, q_idx
);
1400 tx_stats(txo
)->tx_stops
++;
1403 if (flush
|| __netif_subqueue_stopped(netdev
, q_idx
))
1404 be_xmit_flush(adapter
, txo
);
1406 return NETDEV_TX_OK
;
1408 tx_stats(txo
)->tx_drv_drops
++;
1409 /* Flush the already enqueued tx requests */
1410 if (flush
&& txo
->pend_wrb_cnt
)
1411 be_xmit_flush(adapter
, txo
);
1413 return NETDEV_TX_OK
;
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(adapter
->uc_list
[uc_idx
].mac
, adapter
->dev_mac
)) {
1666 adapter
->pmac_id
[uc_idx
+ 1] = adapter
->pmac_id
[0];
1670 return be_cmd_pmac_add(adapter
, adapter
->uc_list
[uc_idx
].mac
,
1672 &adapter
->pmac_id
[uc_idx
+ 1], 0);
1675 static void be_uc_mac_del(struct be_adapter
*adapter
, int pmac_id
)
1677 if (pmac_id
== adapter
->pmac_id
[0])
1680 be_cmd_pmac_del(adapter
, adapter
->if_handle
, pmac_id
, 0);
1683 static void be_set_uc_list(struct be_adapter
*adapter
)
1685 struct net_device
*netdev
= adapter
->netdev
;
1686 struct netdev_hw_addr
*ha
;
1687 bool uc_promisc
= false;
1688 int curr_uc_macs
= 0, i
;
1690 netif_addr_lock_bh(netdev
);
1691 __dev_uc_sync(netdev
, be_uc_list_update
, be_uc_list_update
);
1693 if (netdev
->flags
& IFF_PROMISC
) {
1694 adapter
->update_uc_list
= false;
1695 } else if (netdev_uc_count(netdev
) > (be_max_uc(adapter
) - 1)) {
1697 adapter
->update_uc_list
= false;
1698 } else if (adapter
->if_flags
& BE_IF_FLAGS_PROMISCUOUS
) {
1699 /* Update uc-list unconditionally if the iface was previously
1700 * in uc-promisc mode and now is out of that mode.
1702 adapter
->update_uc_list
= true;
1705 if (adapter
->update_uc_list
) {
1706 /* cache the uc-list in adapter array */
1708 netdev_for_each_uc_addr(ha
, netdev
) {
1709 ether_addr_copy(adapter
->uc_list
[i
].mac
, ha
->addr
);
1712 curr_uc_macs
= netdev_uc_count(netdev
);
1714 netif_addr_unlock_bh(netdev
);
1717 be_set_uc_promisc(adapter
);
1718 } else if (adapter
->update_uc_list
) {
1719 be_clear_uc_promisc(adapter
);
1721 for (i
= 0; i
< adapter
->uc_macs
; i
++)
1722 be_uc_mac_del(adapter
, adapter
->pmac_id
[i
+ 1]);
1724 for (i
= 0; i
< curr_uc_macs
; i
++)
1725 be_uc_mac_add(adapter
, i
);
1726 adapter
->uc_macs
= curr_uc_macs
;
1727 adapter
->update_uc_list
= false;
1731 static void be_clear_uc_list(struct be_adapter
*adapter
)
1733 struct net_device
*netdev
= adapter
->netdev
;
1736 __dev_uc_unsync(netdev
, NULL
);
1737 for (i
= 0; i
< adapter
->uc_macs
; i
++)
1738 be_uc_mac_del(adapter
, adapter
->pmac_id
[i
+ 1]);
1740 adapter
->uc_macs
= 0;
1743 static void __be_set_rx_mode(struct be_adapter
*adapter
)
1745 struct net_device
*netdev
= adapter
->netdev
;
1747 mutex_lock(&adapter
->rx_filter_lock
);
1749 if (netdev
->flags
& IFF_PROMISC
) {
1750 if (!be_in_all_promisc(adapter
))
1751 be_set_all_promisc(adapter
);
1752 } else if (be_in_all_promisc(adapter
)) {
1753 /* We need to re-program the vlan-list or clear
1754 * vlan-promisc mode (if needed) when the interface
1755 * comes out of promisc mode.
1757 be_vid_config(adapter
);
1760 be_set_uc_list(adapter
);
1761 be_set_mc_list(adapter
);
1763 mutex_unlock(&adapter
->rx_filter_lock
);
1766 static void be_work_set_rx_mode(struct work_struct
*work
)
1768 struct be_cmd_work
*cmd_work
=
1769 container_of(work
, struct be_cmd_work
, work
);
1771 __be_set_rx_mode(cmd_work
->adapter
);
1775 static int be_set_vf_mac(struct net_device
*netdev
, int vf
, u8
*mac
)
1777 struct be_adapter
*adapter
= netdev_priv(netdev
);
1778 struct be_vf_cfg
*vf_cfg
= &adapter
->vf_cfg
[vf
];
1781 if (!sriov_enabled(adapter
))
1784 if (!is_valid_ether_addr(mac
) || vf
>= adapter
->num_vfs
)
1787 /* Proceed further only if user provided MAC is different
1790 if (ether_addr_equal(mac
, vf_cfg
->mac_addr
))
1793 if (BEx_chip(adapter
)) {
1794 be_cmd_pmac_del(adapter
, vf_cfg
->if_handle
, vf_cfg
->pmac_id
,
1797 status
= be_cmd_pmac_add(adapter
, mac
, vf_cfg
->if_handle
,
1798 &vf_cfg
->pmac_id
, vf
+ 1);
1800 status
= be_cmd_set_mac(adapter
, mac
, vf_cfg
->if_handle
,
1805 dev_err(&adapter
->pdev
->dev
, "MAC %pM set on VF %d Failed: %#x",
1807 return be_cmd_status(status
);
1810 ether_addr_copy(vf_cfg
->mac_addr
, mac
);
1815 static int be_get_vf_config(struct net_device
*netdev
, int vf
,
1816 struct ifla_vf_info
*vi
)
1818 struct be_adapter
*adapter
= netdev_priv(netdev
);
1819 struct be_vf_cfg
*vf_cfg
= &adapter
->vf_cfg
[vf
];
1821 if (!sriov_enabled(adapter
))
1824 if (vf
>= adapter
->num_vfs
)
1828 vi
->max_tx_rate
= vf_cfg
->tx_rate
;
1829 vi
->min_tx_rate
= 0;
1830 vi
->vlan
= vf_cfg
->vlan_tag
& VLAN_VID_MASK
;
1831 vi
->qos
= vf_cfg
->vlan_tag
>> VLAN_PRIO_SHIFT
;
1832 memcpy(&vi
->mac
, vf_cfg
->mac_addr
, ETH_ALEN
);
1833 vi
->linkstate
= adapter
->vf_cfg
[vf
].plink_tracking
;
1834 vi
->spoofchk
= adapter
->vf_cfg
[vf
].spoofchk
;
1839 static int be_set_vf_tvt(struct be_adapter
*adapter
, int vf
, u16 vlan
)
1841 struct be_vf_cfg
*vf_cfg
= &adapter
->vf_cfg
[vf
];
1842 u16 vids
[BE_NUM_VLANS_SUPPORTED
];
1843 int vf_if_id
= vf_cfg
->if_handle
;
1846 /* Enable Transparent VLAN Tagging */
1847 status
= be_cmd_set_hsw_config(adapter
, vlan
, vf
+ 1, vf_if_id
, 0, 0);
1851 /* Clear pre-programmed VLAN filters on VF if any, if TVT is enabled */
1853 status
= be_cmd_vlan_config(adapter
, vf_if_id
, vids
, 1, vf
+ 1);
1855 dev_info(&adapter
->pdev
->dev
,
1856 "Cleared guest VLANs on VF%d", vf
);
1858 /* After TVT is enabled, disallow VFs to program VLAN filters */
1859 if (vf_cfg
->privileges
& BE_PRIV_FILTMGMT
) {
1860 status
= be_cmd_set_fn_privileges(adapter
, vf_cfg
->privileges
&
1861 ~BE_PRIV_FILTMGMT
, vf
+ 1);
1863 vf_cfg
->privileges
&= ~BE_PRIV_FILTMGMT
;
1868 static int be_clear_vf_tvt(struct be_adapter
*adapter
, int vf
)
1870 struct be_vf_cfg
*vf_cfg
= &adapter
->vf_cfg
[vf
];
1871 struct device
*dev
= &adapter
->pdev
->dev
;
1874 /* Reset Transparent VLAN Tagging. */
1875 status
= be_cmd_set_hsw_config(adapter
, BE_RESET_VLAN_TAG_ID
, vf
+ 1,
1876 vf_cfg
->if_handle
, 0, 0);
1880 /* Allow VFs to program VLAN filtering */
1881 if (!(vf_cfg
->privileges
& BE_PRIV_FILTMGMT
)) {
1882 status
= be_cmd_set_fn_privileges(adapter
, vf_cfg
->privileges
|
1883 BE_PRIV_FILTMGMT
, vf
+ 1);
1885 vf_cfg
->privileges
|= BE_PRIV_FILTMGMT
;
1886 dev_info(dev
, "VF%d: FILTMGMT priv enabled", vf
);
1891 "Disable/re-enable i/f in VM to clear Transparent VLAN tag");
1895 static int be_set_vf_vlan(struct net_device
*netdev
, int vf
, u16 vlan
, u8 qos
,
1898 struct be_adapter
*adapter
= netdev_priv(netdev
);
1899 struct be_vf_cfg
*vf_cfg
= &adapter
->vf_cfg
[vf
];
1902 if (!sriov_enabled(adapter
))
1905 if (vf
>= adapter
->num_vfs
|| vlan
> 4095 || qos
> 7)
1908 if (vlan_proto
!= htons(ETH_P_8021Q
))
1909 return -EPROTONOSUPPORT
;
1912 vlan
|= qos
<< VLAN_PRIO_SHIFT
;
1913 status
= be_set_vf_tvt(adapter
, vf
, vlan
);
1915 status
= be_clear_vf_tvt(adapter
, vf
);
1919 dev_err(&adapter
->pdev
->dev
,
1920 "VLAN %d config on VF %d failed : %#x\n", vlan
, vf
,
1922 return be_cmd_status(status
);
1925 vf_cfg
->vlan_tag
= vlan
;
1929 static int be_set_vf_tx_rate(struct net_device
*netdev
, int vf
,
1930 int min_tx_rate
, int max_tx_rate
)
1932 struct be_adapter
*adapter
= netdev_priv(netdev
);
1933 struct device
*dev
= &adapter
->pdev
->dev
;
1934 int percent_rate
, status
= 0;
1938 if (!sriov_enabled(adapter
))
1941 if (vf
>= adapter
->num_vfs
)
1950 status
= be_cmd_link_status_query(adapter
, &link_speed
,
1956 dev_err(dev
, "TX-rate setting not allowed when link is down\n");
1961 if (max_tx_rate
< 100 || max_tx_rate
> link_speed
) {
1962 dev_err(dev
, "TX-rate must be between 100 and %d Mbps\n",
1968 /* On Skyhawk the QOS setting must be done only as a % value */
1969 percent_rate
= link_speed
/ 100;
1970 if (skyhawk_chip(adapter
) && (max_tx_rate
% percent_rate
)) {
1971 dev_err(dev
, "TX-rate must be a multiple of %d Mbps\n",
1978 status
= be_cmd_config_qos(adapter
, max_tx_rate
, link_speed
, vf
+ 1);
1982 adapter
->vf_cfg
[vf
].tx_rate
= max_tx_rate
;
1986 dev_err(dev
, "TX-rate setting of %dMbps on VF%d failed\n",
1988 return be_cmd_status(status
);
1991 static int be_set_vf_link_state(struct net_device
*netdev
, int vf
,
1994 struct be_adapter
*adapter
= netdev_priv(netdev
);
1997 if (!sriov_enabled(adapter
))
2000 if (vf
>= adapter
->num_vfs
)
2003 status
= be_cmd_set_logical_link_config(adapter
, link_state
, vf
+1);
2005 dev_err(&adapter
->pdev
->dev
,
2006 "Link state change on VF %d failed: %#x\n", vf
, status
);
2007 return be_cmd_status(status
);
2010 adapter
->vf_cfg
[vf
].plink_tracking
= link_state
;
2015 static int be_set_vf_spoofchk(struct net_device
*netdev
, int vf
, bool enable
)
2017 struct be_adapter
*adapter
= netdev_priv(netdev
);
2018 struct be_vf_cfg
*vf_cfg
= &adapter
->vf_cfg
[vf
];
2022 if (!sriov_enabled(adapter
))
2025 if (vf
>= adapter
->num_vfs
)
2028 if (BEx_chip(adapter
))
2031 if (enable
== vf_cfg
->spoofchk
)
2034 spoofchk
= enable
? ENABLE_MAC_SPOOFCHK
: DISABLE_MAC_SPOOFCHK
;
2036 status
= be_cmd_set_hsw_config(adapter
, 0, vf
+ 1, vf_cfg
->if_handle
,
2039 dev_err(&adapter
->pdev
->dev
,
2040 "Spoofchk change on VF %d failed: %#x\n", vf
, status
);
2041 return be_cmd_status(status
);
2044 vf_cfg
->spoofchk
= enable
;
2048 static void be_aic_update(struct be_aic_obj
*aic
, u64 rx_pkts
, u64 tx_pkts
,
2051 aic
->rx_pkts_prev
= rx_pkts
;
2052 aic
->tx_reqs_prev
= tx_pkts
;
2056 static int be_get_new_eqd(struct be_eq_obj
*eqo
)
2058 struct be_adapter
*adapter
= eqo
->adapter
;
2060 struct be_aic_obj
*aic
;
2061 struct be_rx_obj
*rxo
;
2062 struct be_tx_obj
*txo
;
2063 u64 rx_pkts
= 0, tx_pkts
= 0;
2068 aic
= &adapter
->aic_obj
[eqo
->idx
];
2076 for_all_rx_queues_on_eq(adapter
, eqo
, rxo
, i
) {
2078 start
= u64_stats_fetch_begin_irq(&rxo
->stats
.sync
);
2079 rx_pkts
+= rxo
->stats
.rx_pkts
;
2080 } while (u64_stats_fetch_retry_irq(&rxo
->stats
.sync
, start
));
2083 for_all_tx_queues_on_eq(adapter
, eqo
, txo
, i
) {
2085 start
= u64_stats_fetch_begin_irq(&txo
->stats
.sync
);
2086 tx_pkts
+= txo
->stats
.tx_reqs
;
2087 } while (u64_stats_fetch_retry_irq(&txo
->stats
.sync
, start
));
2090 /* Skip, if wrapped around or first calculation */
2092 if (!aic
->jiffies
|| time_before(now
, aic
->jiffies
) ||
2093 rx_pkts
< aic
->rx_pkts_prev
||
2094 tx_pkts
< aic
->tx_reqs_prev
) {
2095 be_aic_update(aic
, rx_pkts
, tx_pkts
, now
);
2096 return aic
->prev_eqd
;
2099 delta
= jiffies_to_msecs(now
- aic
->jiffies
);
2101 return aic
->prev_eqd
;
2103 pps
= (((u32
)(rx_pkts
- aic
->rx_pkts_prev
) * 1000) / delta
) +
2104 (((u32
)(tx_pkts
- aic
->tx_reqs_prev
) * 1000) / delta
);
2105 eqd
= (pps
/ 15000) << 2;
2109 eqd
= min_t(u32
, eqd
, aic
->max_eqd
);
2110 eqd
= max_t(u32
, eqd
, aic
->min_eqd
);
2112 be_aic_update(aic
, rx_pkts
, tx_pkts
, now
);
2117 /* For Skyhawk-R only */
2118 static u32
be_get_eq_delay_mult_enc(struct be_eq_obj
*eqo
)
2120 struct be_adapter
*adapter
= eqo
->adapter
;
2121 struct be_aic_obj
*aic
= &adapter
->aic_obj
[eqo
->idx
];
2122 ulong now
= jiffies
;
2129 if (jiffies_to_msecs(now
- aic
->jiffies
) < 1)
2130 eqd
= aic
->prev_eqd
;
2132 eqd
= be_get_new_eqd(eqo
);
2135 mult_enc
= R2I_DLY_ENC_1
;
2137 mult_enc
= R2I_DLY_ENC_2
;
2139 mult_enc
= R2I_DLY_ENC_3
;
2141 mult_enc
= R2I_DLY_ENC_0
;
2143 aic
->prev_eqd
= eqd
;
2148 void be_eqd_update(struct be_adapter
*adapter
, bool force_update
)
2150 struct be_set_eqd set_eqd
[MAX_EVT_QS
];
2151 struct be_aic_obj
*aic
;
2152 struct be_eq_obj
*eqo
;
2153 int i
, num
= 0, eqd
;
2155 for_all_evt_queues(adapter
, eqo
, i
) {
2156 aic
= &adapter
->aic_obj
[eqo
->idx
];
2157 eqd
= be_get_new_eqd(eqo
);
2158 if (force_update
|| eqd
!= aic
->prev_eqd
) {
2159 set_eqd
[num
].delay_multiplier
= (eqd
* 65)/100;
2160 set_eqd
[num
].eq_id
= eqo
->q
.id
;
2161 aic
->prev_eqd
= eqd
;
2167 be_cmd_modify_eqd(adapter
, set_eqd
, num
);
2170 static void be_rx_stats_update(struct be_rx_obj
*rxo
,
2171 struct be_rx_compl_info
*rxcp
)
2173 struct be_rx_stats
*stats
= rx_stats(rxo
);
2175 u64_stats_update_begin(&stats
->sync
);
2177 stats
->rx_bytes
+= rxcp
->pkt_size
;
2180 stats
->rx_vxlan_offload_pkts
++;
2181 if (rxcp
->pkt_type
== BE_MULTICAST_PACKET
)
2182 stats
->rx_mcast_pkts
++;
2184 stats
->rx_compl_err
++;
2185 u64_stats_update_end(&stats
->sync
);
2188 static inline bool csum_passed(struct be_rx_compl_info
*rxcp
)
2190 /* L4 checksum is not reliable for non TCP/UDP packets.
2191 * Also ignore ipcksm for ipv6 pkts
2193 return (rxcp
->tcpf
|| rxcp
->udpf
) && rxcp
->l4_csum
&&
2194 (rxcp
->ip_csum
|| rxcp
->ipv6
) && !rxcp
->err
;
2197 static struct be_rx_page_info
*get_rx_page_info(struct be_rx_obj
*rxo
)
2199 struct be_adapter
*adapter
= rxo
->adapter
;
2200 struct be_rx_page_info
*rx_page_info
;
2201 struct be_queue_info
*rxq
= &rxo
->q
;
2202 u32 frag_idx
= rxq
->tail
;
2204 rx_page_info
= &rxo
->page_info_tbl
[frag_idx
];
2205 BUG_ON(!rx_page_info
->page
);
2207 if (rx_page_info
->last_frag
) {
2208 dma_unmap_page(&adapter
->pdev
->dev
,
2209 dma_unmap_addr(rx_page_info
, bus
),
2210 adapter
->big_page_size
, DMA_FROM_DEVICE
);
2211 rx_page_info
->last_frag
= false;
2213 dma_sync_single_for_cpu(&adapter
->pdev
->dev
,
2214 dma_unmap_addr(rx_page_info
, bus
),
2215 rx_frag_size
, DMA_FROM_DEVICE
);
2218 queue_tail_inc(rxq
);
2219 atomic_dec(&rxq
->used
);
2220 return rx_page_info
;
2223 /* Throwaway the data in the Rx completion */
2224 static void be_rx_compl_discard(struct be_rx_obj
*rxo
,
2225 struct be_rx_compl_info
*rxcp
)
2227 struct be_rx_page_info
*page_info
;
2228 u16 i
, num_rcvd
= rxcp
->num_rcvd
;
2230 for (i
= 0; i
< num_rcvd
; i
++) {
2231 page_info
= get_rx_page_info(rxo
);
2232 put_page(page_info
->page
);
2233 memset(page_info
, 0, sizeof(*page_info
));
2238 * skb_fill_rx_data forms a complete skb for an ether frame
2239 * indicated by rxcp.
2241 static void skb_fill_rx_data(struct be_rx_obj
*rxo
, struct sk_buff
*skb
,
2242 struct be_rx_compl_info
*rxcp
)
2244 struct be_rx_page_info
*page_info
;
2246 u16 hdr_len
, curr_frag_len
, remaining
;
2249 page_info
= get_rx_page_info(rxo
);
2250 start
= page_address(page_info
->page
) + page_info
->page_offset
;
2253 /* Copy data in the first descriptor of this completion */
2254 curr_frag_len
= min(rxcp
->pkt_size
, rx_frag_size
);
2256 skb
->len
= curr_frag_len
;
2257 if (curr_frag_len
<= BE_HDR_LEN
) { /* tiny packet */
2258 memcpy(skb
->data
, start
, curr_frag_len
);
2259 /* Complete packet has now been moved to data */
2260 put_page(page_info
->page
);
2262 skb
->tail
+= curr_frag_len
;
2265 memcpy(skb
->data
, start
, hdr_len
);
2266 skb_shinfo(skb
)->nr_frags
= 1;
2267 skb_frag_set_page(skb
, 0, page_info
->page
);
2268 skb_shinfo(skb
)->frags
[0].page_offset
=
2269 page_info
->page_offset
+ hdr_len
;
2270 skb_frag_size_set(&skb_shinfo(skb
)->frags
[0],
2271 curr_frag_len
- hdr_len
);
2272 skb
->data_len
= curr_frag_len
- hdr_len
;
2273 skb
->truesize
+= rx_frag_size
;
2274 skb
->tail
+= hdr_len
;
2276 page_info
->page
= NULL
;
2278 if (rxcp
->pkt_size
<= rx_frag_size
) {
2279 BUG_ON(rxcp
->num_rcvd
!= 1);
2283 /* More frags present for this completion */
2284 remaining
= rxcp
->pkt_size
- curr_frag_len
;
2285 for (i
= 1, j
= 0; i
< rxcp
->num_rcvd
; i
++) {
2286 page_info
= get_rx_page_info(rxo
);
2287 curr_frag_len
= min(remaining
, rx_frag_size
);
2289 /* Coalesce all frags from the same physical page in one slot */
2290 if (page_info
->page_offset
== 0) {
2293 skb_frag_set_page(skb
, j
, page_info
->page
);
2294 skb_shinfo(skb
)->frags
[j
].page_offset
=
2295 page_info
->page_offset
;
2296 skb_frag_size_set(&skb_shinfo(skb
)->frags
[j
], 0);
2297 skb_shinfo(skb
)->nr_frags
++;
2299 put_page(page_info
->page
);
2302 skb_frag_size_add(&skb_shinfo(skb
)->frags
[j
], curr_frag_len
);
2303 skb
->len
+= curr_frag_len
;
2304 skb
->data_len
+= curr_frag_len
;
2305 skb
->truesize
+= rx_frag_size
;
2306 remaining
-= curr_frag_len
;
2307 page_info
->page
= NULL
;
2309 BUG_ON(j
> MAX_SKB_FRAGS
);
2312 /* Process the RX completion indicated by rxcp when GRO is disabled */
2313 static void be_rx_compl_process(struct be_rx_obj
*rxo
, struct napi_struct
*napi
,
2314 struct be_rx_compl_info
*rxcp
)
2316 struct be_adapter
*adapter
= rxo
->adapter
;
2317 struct net_device
*netdev
= adapter
->netdev
;
2318 struct sk_buff
*skb
;
2320 skb
= netdev_alloc_skb_ip_align(netdev
, BE_RX_SKB_ALLOC_SIZE
);
2321 if (unlikely(!skb
)) {
2322 rx_stats(rxo
)->rx_drops_no_skbs
++;
2323 be_rx_compl_discard(rxo
, rxcp
);
2327 skb_fill_rx_data(rxo
, skb
, rxcp
);
2329 if (likely((netdev
->features
& NETIF_F_RXCSUM
) && csum_passed(rxcp
)))
2330 skb
->ip_summed
= CHECKSUM_UNNECESSARY
;
2332 skb_checksum_none_assert(skb
);
2334 skb
->protocol
= eth_type_trans(skb
, netdev
);
2335 skb_record_rx_queue(skb
, rxo
- &adapter
->rx_obj
[0]);
2336 if (netdev
->features
& NETIF_F_RXHASH
)
2337 skb_set_hash(skb
, rxcp
->rss_hash
, PKT_HASH_TYPE_L3
);
2339 skb
->csum_level
= rxcp
->tunneled
;
2340 skb_mark_napi_id(skb
, napi
);
2343 __vlan_hwaccel_put_tag(skb
, htons(ETH_P_8021Q
), rxcp
->vlan_tag
);
2345 netif_receive_skb(skb
);
2348 /* Process the RX completion indicated by rxcp when GRO is enabled */
2349 static void be_rx_compl_process_gro(struct be_rx_obj
*rxo
,
2350 struct napi_struct
*napi
,
2351 struct be_rx_compl_info
*rxcp
)
2353 struct be_adapter
*adapter
= rxo
->adapter
;
2354 struct be_rx_page_info
*page_info
;
2355 struct sk_buff
*skb
= NULL
;
2356 u16 remaining
, curr_frag_len
;
2359 skb
= napi_get_frags(napi
);
2361 be_rx_compl_discard(rxo
, rxcp
);
2365 remaining
= rxcp
->pkt_size
;
2366 for (i
= 0, j
= -1; i
< rxcp
->num_rcvd
; i
++) {
2367 page_info
= get_rx_page_info(rxo
);
2369 curr_frag_len
= min(remaining
, rx_frag_size
);
2371 /* Coalesce all frags from the same physical page in one slot */
2372 if (i
== 0 || page_info
->page_offset
== 0) {
2373 /* First frag or Fresh page */
2375 skb_frag_set_page(skb
, j
, page_info
->page
);
2376 skb_shinfo(skb
)->frags
[j
].page_offset
=
2377 page_info
->page_offset
;
2378 skb_frag_size_set(&skb_shinfo(skb
)->frags
[j
], 0);
2380 put_page(page_info
->page
);
2382 skb_frag_size_add(&skb_shinfo(skb
)->frags
[j
], curr_frag_len
);
2383 skb
->truesize
+= rx_frag_size
;
2384 remaining
-= curr_frag_len
;
2385 memset(page_info
, 0, sizeof(*page_info
));
2387 BUG_ON(j
> MAX_SKB_FRAGS
);
2389 skb_shinfo(skb
)->nr_frags
= j
+ 1;
2390 skb
->len
= rxcp
->pkt_size
;
2391 skb
->data_len
= rxcp
->pkt_size
;
2392 skb
->ip_summed
= CHECKSUM_UNNECESSARY
;
2393 skb_record_rx_queue(skb
, rxo
- &adapter
->rx_obj
[0]);
2394 if (adapter
->netdev
->features
& NETIF_F_RXHASH
)
2395 skb_set_hash(skb
, rxcp
->rss_hash
, PKT_HASH_TYPE_L3
);
2397 skb
->csum_level
= rxcp
->tunneled
;
2400 __vlan_hwaccel_put_tag(skb
, htons(ETH_P_8021Q
), rxcp
->vlan_tag
);
2402 napi_gro_frags(napi
);
2405 static void be_parse_rx_compl_v1(struct be_eth_rx_compl
*compl,
2406 struct be_rx_compl_info
*rxcp
)
2408 rxcp
->pkt_size
= GET_RX_COMPL_V1_BITS(pktsize
, compl);
2409 rxcp
->vlanf
= GET_RX_COMPL_V1_BITS(vtp
, compl);
2410 rxcp
->err
= GET_RX_COMPL_V1_BITS(err
, compl);
2411 rxcp
->tcpf
= GET_RX_COMPL_V1_BITS(tcpf
, compl);
2412 rxcp
->udpf
= GET_RX_COMPL_V1_BITS(udpf
, compl);
2413 rxcp
->ip_csum
= GET_RX_COMPL_V1_BITS(ipcksm
, compl);
2414 rxcp
->l4_csum
= GET_RX_COMPL_V1_BITS(l4_cksm
, compl);
2415 rxcp
->ipv6
= GET_RX_COMPL_V1_BITS(ip_version
, compl);
2416 rxcp
->num_rcvd
= GET_RX_COMPL_V1_BITS(numfrags
, compl);
2417 rxcp
->pkt_type
= GET_RX_COMPL_V1_BITS(cast_enc
, compl);
2418 rxcp
->rss_hash
= GET_RX_COMPL_V1_BITS(rsshash
, compl);
2420 rxcp
->qnq
= GET_RX_COMPL_V1_BITS(qnq
, compl);
2421 rxcp
->vlan_tag
= GET_RX_COMPL_V1_BITS(vlan_tag
, compl);
2423 rxcp
->port
= GET_RX_COMPL_V1_BITS(port
, compl);
2425 GET_RX_COMPL_V1_BITS(tunneled
, compl);
2428 static void be_parse_rx_compl_v0(struct be_eth_rx_compl
*compl,
2429 struct be_rx_compl_info
*rxcp
)
2431 rxcp
->pkt_size
= GET_RX_COMPL_V0_BITS(pktsize
, compl);
2432 rxcp
->vlanf
= GET_RX_COMPL_V0_BITS(vtp
, compl);
2433 rxcp
->err
= GET_RX_COMPL_V0_BITS(err
, compl);
2434 rxcp
->tcpf
= GET_RX_COMPL_V0_BITS(tcpf
, compl);
2435 rxcp
->udpf
= GET_RX_COMPL_V0_BITS(udpf
, compl);
2436 rxcp
->ip_csum
= GET_RX_COMPL_V0_BITS(ipcksm
, compl);
2437 rxcp
->l4_csum
= GET_RX_COMPL_V0_BITS(l4_cksm
, compl);
2438 rxcp
->ipv6
= GET_RX_COMPL_V0_BITS(ip_version
, compl);
2439 rxcp
->num_rcvd
= GET_RX_COMPL_V0_BITS(numfrags
, compl);
2440 rxcp
->pkt_type
= GET_RX_COMPL_V0_BITS(cast_enc
, compl);
2441 rxcp
->rss_hash
= GET_RX_COMPL_V0_BITS(rsshash
, compl);
2443 rxcp
->qnq
= GET_RX_COMPL_V0_BITS(qnq
, compl);
2444 rxcp
->vlan_tag
= GET_RX_COMPL_V0_BITS(vlan_tag
, compl);
2446 rxcp
->port
= GET_RX_COMPL_V0_BITS(port
, compl);
2447 rxcp
->ip_frag
= GET_RX_COMPL_V0_BITS(ip_frag
, compl);
2450 static struct be_rx_compl_info
*be_rx_compl_get(struct be_rx_obj
*rxo
)
2452 struct be_eth_rx_compl
*compl = queue_tail_node(&rxo
->cq
);
2453 struct be_rx_compl_info
*rxcp
= &rxo
->rxcp
;
2454 struct be_adapter
*adapter
= rxo
->adapter
;
2456 /* For checking the valid bit it is Ok to use either definition as the
2457 * valid bit is at the same position in both v0 and v1 Rx compl */
2458 if (compl->dw
[offsetof(struct amap_eth_rx_compl_v1
, valid
) / 32] == 0)
2462 be_dws_le_to_cpu(compl, sizeof(*compl));
2464 if (adapter
->be3_native
)
2465 be_parse_rx_compl_v1(compl, rxcp
);
2467 be_parse_rx_compl_v0(compl, rxcp
);
2473 /* In QNQ modes, if qnq bit is not set, then the packet was
2474 * tagged only with the transparent outer vlan-tag and must
2475 * not be treated as a vlan packet by host
2477 if (be_is_qnq_mode(adapter
) && !rxcp
->qnq
)
2480 if (!lancer_chip(adapter
))
2481 rxcp
->vlan_tag
= swab16(rxcp
->vlan_tag
);
2483 if (adapter
->pvid
== (rxcp
->vlan_tag
& VLAN_VID_MASK
) &&
2484 !test_bit(rxcp
->vlan_tag
, adapter
->vids
))
2488 /* As the compl has been parsed, reset it; we wont touch it again */
2489 compl->dw
[offsetof(struct amap_eth_rx_compl_v1
, valid
) / 32] = 0;
2491 queue_tail_inc(&rxo
->cq
);
2495 static inline struct page
*be_alloc_pages(u32 size
, gfp_t gfp
)
2497 u32 order
= get_order(size
);
2501 return alloc_pages(gfp
, order
);
2505 * Allocate a page, split it to fragments of size rx_frag_size and post as
2506 * receive buffers to BE
2508 static void be_post_rx_frags(struct be_rx_obj
*rxo
, gfp_t gfp
, u32 frags_needed
)
2510 struct be_adapter
*adapter
= rxo
->adapter
;
2511 struct be_rx_page_info
*page_info
= NULL
, *prev_page_info
= NULL
;
2512 struct be_queue_info
*rxq
= &rxo
->q
;
2513 struct page
*pagep
= NULL
;
2514 struct device
*dev
= &adapter
->pdev
->dev
;
2515 struct be_eth_rx_d
*rxd
;
2516 u64 page_dmaaddr
= 0, frag_dmaaddr
;
2517 u32 posted
, page_offset
= 0, notify
= 0;
2519 page_info
= &rxo
->page_info_tbl
[rxq
->head
];
2520 for (posted
= 0; posted
< frags_needed
&& !page_info
->page
; posted
++) {
2522 pagep
= be_alloc_pages(adapter
->big_page_size
, gfp
);
2523 if (unlikely(!pagep
)) {
2524 rx_stats(rxo
)->rx_post_fail
++;
2527 page_dmaaddr
= dma_map_page(dev
, pagep
, 0,
2528 adapter
->big_page_size
,
2530 if (dma_mapping_error(dev
, page_dmaaddr
)) {
2533 adapter
->drv_stats
.dma_map_errors
++;
2539 page_offset
+= rx_frag_size
;
2541 page_info
->page_offset
= page_offset
;
2542 page_info
->page
= pagep
;
2544 rxd
= queue_head_node(rxq
);
2545 frag_dmaaddr
= page_dmaaddr
+ page_info
->page_offset
;
2546 rxd
->fragpa_lo
= cpu_to_le32(frag_dmaaddr
& 0xFFFFFFFF);
2547 rxd
->fragpa_hi
= cpu_to_le32(upper_32_bits(frag_dmaaddr
));
2549 /* Any space left in the current big page for another frag? */
2550 if ((page_offset
+ rx_frag_size
+ rx_frag_size
) >
2551 adapter
->big_page_size
) {
2553 page_info
->last_frag
= true;
2554 dma_unmap_addr_set(page_info
, bus
, page_dmaaddr
);
2556 dma_unmap_addr_set(page_info
, bus
, frag_dmaaddr
);
2559 prev_page_info
= page_info
;
2560 queue_head_inc(rxq
);
2561 page_info
= &rxo
->page_info_tbl
[rxq
->head
];
2564 /* Mark the last frag of a page when we break out of the above loop
2565 * with no more slots available in the RXQ
2568 prev_page_info
->last_frag
= true;
2569 dma_unmap_addr_set(prev_page_info
, bus
, page_dmaaddr
);
2573 atomic_add(posted
, &rxq
->used
);
2574 if (rxo
->rx_post_starved
)
2575 rxo
->rx_post_starved
= false;
2577 notify
= min(MAX_NUM_POST_ERX_DB
, posted
);
2578 be_rxq_notify(adapter
, rxq
->id
, notify
);
2581 } else if (atomic_read(&rxq
->used
) == 0) {
2582 /* Let be_worker replenish when memory is available */
2583 rxo
->rx_post_starved
= true;
2587 static struct be_tx_compl_info
*be_tx_compl_get(struct be_tx_obj
*txo
)
2589 struct be_queue_info
*tx_cq
= &txo
->cq
;
2590 struct be_tx_compl_info
*txcp
= &txo
->txcp
;
2591 struct be_eth_tx_compl
*compl = queue_tail_node(tx_cq
);
2593 if (compl->dw
[offsetof(struct amap_eth_tx_compl
, valid
) / 32] == 0)
2596 /* Ensure load ordering of valid bit dword and other dwords below */
2598 be_dws_le_to_cpu(compl, sizeof(*compl));
2600 txcp
->status
= GET_TX_COMPL_BITS(status
, compl);
2601 txcp
->end_index
= GET_TX_COMPL_BITS(wrb_index
, compl);
2603 compl->dw
[offsetof(struct amap_eth_tx_compl
, valid
) / 32] = 0;
2604 queue_tail_inc(tx_cq
);
2608 static u16
be_tx_compl_process(struct be_adapter
*adapter
,
2609 struct be_tx_obj
*txo
, u16 last_index
)
2611 struct sk_buff
**sent_skbs
= txo
->sent_skb_list
;
2612 struct be_queue_info
*txq
= &txo
->q
;
2613 struct sk_buff
*skb
= NULL
;
2614 bool unmap_skb_hdr
= false;
2615 struct be_eth_wrb
*wrb
;
2620 if (sent_skbs
[txq
->tail
]) {
2621 /* Free skb from prev req */
2623 dev_consume_skb_any(skb
);
2624 skb
= sent_skbs
[txq
->tail
];
2625 sent_skbs
[txq
->tail
] = NULL
;
2626 queue_tail_inc(txq
); /* skip hdr wrb */
2628 unmap_skb_hdr
= true;
2630 wrb
= queue_tail_node(txq
);
2631 frag_index
= txq
->tail
;
2632 unmap_tx_frag(&adapter
->pdev
->dev
, wrb
,
2633 (unmap_skb_hdr
&& skb_headlen(skb
)));
2634 unmap_skb_hdr
= false;
2635 queue_tail_inc(txq
);
2637 } while (frag_index
!= last_index
);
2638 dev_consume_skb_any(skb
);
2643 /* Return the number of events in the event queue */
2644 static inline int events_get(struct be_eq_obj
*eqo
)
2646 struct be_eq_entry
*eqe
;
2650 eqe
= queue_tail_node(&eqo
->q
);
2657 queue_tail_inc(&eqo
->q
);
2663 /* Leaves the EQ is disarmed state */
2664 static void be_eq_clean(struct be_eq_obj
*eqo
)
2666 int num
= events_get(eqo
);
2668 be_eq_notify(eqo
->adapter
, eqo
->q
.id
, false, true, num
, 0);
2671 /* Free posted rx buffers that were not used */
2672 static void be_rxq_clean(struct be_rx_obj
*rxo
)
2674 struct be_queue_info
*rxq
= &rxo
->q
;
2675 struct be_rx_page_info
*page_info
;
2677 while (atomic_read(&rxq
->used
) > 0) {
2678 page_info
= get_rx_page_info(rxo
);
2679 put_page(page_info
->page
);
2680 memset(page_info
, 0, sizeof(*page_info
));
2682 BUG_ON(atomic_read(&rxq
->used
));
2687 static void be_rx_cq_clean(struct be_rx_obj
*rxo
)
2689 struct be_queue_info
*rx_cq
= &rxo
->cq
;
2690 struct be_rx_compl_info
*rxcp
;
2691 struct be_adapter
*adapter
= rxo
->adapter
;
2694 /* Consume pending rx completions.
2695 * Wait for the flush completion (identified by zero num_rcvd)
2696 * to arrive. Notify CQ even when there are no more CQ entries
2697 * for HW to flush partially coalesced CQ entries.
2698 * In Lancer, there is no need to wait for flush compl.
2701 rxcp
= be_rx_compl_get(rxo
);
2703 if (lancer_chip(adapter
))
2706 if (flush_wait
++ > 50 ||
2707 be_check_error(adapter
,
2709 dev_warn(&adapter
->pdev
->dev
,
2710 "did not receive flush compl\n");
2713 be_cq_notify(adapter
, rx_cq
->id
, true, 0);
2716 be_rx_compl_discard(rxo
, rxcp
);
2717 be_cq_notify(adapter
, rx_cq
->id
, false, 1);
2718 if (rxcp
->num_rcvd
== 0)
2723 /* After cleanup, leave the CQ in unarmed state */
2724 be_cq_notify(adapter
, rx_cq
->id
, false, 0);
2727 static void be_tx_compl_clean(struct be_adapter
*adapter
)
2729 struct device
*dev
= &adapter
->pdev
->dev
;
2730 u16 cmpl
= 0, timeo
= 0, num_wrbs
= 0;
2731 struct be_tx_compl_info
*txcp
;
2732 struct be_queue_info
*txq
;
2733 u32 end_idx
, notified_idx
;
2734 struct be_tx_obj
*txo
;
2735 int i
, pending_txqs
;
2737 /* Stop polling for compls when HW has been silent for 10ms */
2739 pending_txqs
= adapter
->num_tx_qs
;
2741 for_all_tx_queues(adapter
, txo
, i
) {
2745 while ((txcp
= be_tx_compl_get(txo
))) {
2747 be_tx_compl_process(adapter
, txo
,
2752 be_cq_notify(adapter
, txo
->cq
.id
, false, cmpl
);
2753 atomic_sub(num_wrbs
, &txq
->used
);
2756 if (!be_is_tx_compl_pending(txo
))
2760 if (pending_txqs
== 0 || ++timeo
> 10 ||
2761 be_check_error(adapter
, BE_ERROR_HW
))
2767 /* Free enqueued TX that was never notified to HW */
2768 for_all_tx_queues(adapter
, txo
, i
) {
2771 if (atomic_read(&txq
->used
)) {
2772 dev_info(dev
, "txq%d: cleaning %d pending tx-wrbs\n",
2773 i
, atomic_read(&txq
->used
));
2774 notified_idx
= txq
->tail
;
2775 end_idx
= txq
->tail
;
2776 index_adv(&end_idx
, atomic_read(&txq
->used
) - 1,
2778 /* Use the tx-compl process logic to handle requests
2779 * that were not sent to the HW.
2781 num_wrbs
= be_tx_compl_process(adapter
, txo
, end_idx
);
2782 atomic_sub(num_wrbs
, &txq
->used
);
2783 BUG_ON(atomic_read(&txq
->used
));
2784 txo
->pend_wrb_cnt
= 0;
2785 /* Since hw was never notified of these requests,
2788 txq
->head
= notified_idx
;
2789 txq
->tail
= notified_idx
;
2794 static void be_evt_queues_destroy(struct be_adapter
*adapter
)
2796 struct be_eq_obj
*eqo
;
2799 for_all_evt_queues(adapter
, eqo
, i
) {
2800 if (eqo
->q
.created
) {
2802 be_cmd_q_destroy(adapter
, &eqo
->q
, QTYPE_EQ
);
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
,
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
);
3099 be_rx_compl_process_gro(rxo
, napi
, rxcp
);
3101 be_rx_compl_process(rxo
, napi
, rxcp
);
3104 frags_consumed
+= rxcp
->num_rcvd
;
3105 be_rx_stats_update(rxo
, rxcp
);
3109 be_cq_notify(adapter
, rx_cq
->id
, true, work_done
);
3111 /* When an rx-obj gets into post_starved state, just
3112 * let be_worker do the posting.
3114 if (atomic_read(&rxo
->q
.used
) < RX_FRAGS_REFILL_WM
&&
3115 !rxo
->rx_post_starved
)
3116 be_post_rx_frags(rxo
, GFP_ATOMIC
,
3117 max_t(u32
, MAX_RX_POST
,
3124 static inline void be_update_tx_err(struct be_tx_obj
*txo
, u8 status
)
3127 case BE_TX_COMP_HDR_PARSE_ERR
:
3128 tx_stats(txo
)->tx_hdr_parse_err
++;
3130 case BE_TX_COMP_NDMA_ERR
:
3131 tx_stats(txo
)->tx_dma_err
++;
3133 case BE_TX_COMP_ACL_ERR
:
3134 tx_stats(txo
)->tx_spoof_check_err
++;
3139 static inline void lancer_update_tx_err(struct be_tx_obj
*txo
, u8 status
)
3142 case LANCER_TX_COMP_LSO_ERR
:
3143 tx_stats(txo
)->tx_tso_err
++;
3145 case LANCER_TX_COMP_HSW_DROP_MAC_ERR
:
3146 case LANCER_TX_COMP_HSW_DROP_VLAN_ERR
:
3147 tx_stats(txo
)->tx_spoof_check_err
++;
3149 case LANCER_TX_COMP_QINQ_ERR
:
3150 tx_stats(txo
)->tx_qinq_err
++;
3152 case LANCER_TX_COMP_PARITY_ERR
:
3153 tx_stats(txo
)->tx_internal_parity_err
++;
3155 case LANCER_TX_COMP_DMA_ERR
:
3156 tx_stats(txo
)->tx_dma_err
++;
3161 static void be_process_tx(struct be_adapter
*adapter
, struct be_tx_obj
*txo
,
3164 int num_wrbs
= 0, work_done
= 0;
3165 struct be_tx_compl_info
*txcp
;
3167 while ((txcp
= be_tx_compl_get(txo
))) {
3168 num_wrbs
+= be_tx_compl_process(adapter
, txo
, txcp
->end_index
);
3172 if (lancer_chip(adapter
))
3173 lancer_update_tx_err(txo
, txcp
->status
);
3175 be_update_tx_err(txo
, txcp
->status
);
3180 be_cq_notify(adapter
, txo
->cq
.id
, true, work_done
);
3181 atomic_sub(num_wrbs
, &txo
->q
.used
);
3183 /* As Tx wrbs have been freed up, wake up netdev queue
3184 * if it was stopped due to lack of tx wrbs. */
3185 if (__netif_subqueue_stopped(adapter
->netdev
, idx
) &&
3186 be_can_txq_wake(txo
)) {
3187 netif_wake_subqueue(adapter
->netdev
, idx
);
3190 u64_stats_update_begin(&tx_stats(txo
)->sync_compl
);
3191 tx_stats(txo
)->tx_compl
+= work_done
;
3192 u64_stats_update_end(&tx_stats(txo
)->sync_compl
);
3196 int be_poll(struct napi_struct
*napi
, int budget
)
3198 struct be_eq_obj
*eqo
= container_of(napi
, struct be_eq_obj
, napi
);
3199 struct be_adapter
*adapter
= eqo
->adapter
;
3200 int max_work
= 0, work
, i
, num_evts
;
3201 struct be_rx_obj
*rxo
;
3202 struct be_tx_obj
*txo
;
3205 num_evts
= events_get(eqo
);
3207 for_all_tx_queues_on_eq(adapter
, eqo
, txo
, i
)
3208 be_process_tx(adapter
, txo
, i
);
3210 /* This loop will iterate twice for EQ0 in which
3211 * completions of the last RXQ (default one) are also processed
3212 * For other EQs the loop iterates only once
3214 for_all_rx_queues_on_eq(adapter
, eqo
, rxo
, i
) {
3215 work
= be_process_rx(rxo
, napi
, budget
);
3216 max_work
= max(work
, max_work
);
3219 if (is_mcc_eqo(eqo
))
3220 be_process_mcc(adapter
);
3222 if (max_work
< budget
) {
3223 napi_complete_done(napi
, max_work
);
3225 /* Skyhawk EQ_DB has a provision to set the rearm to interrupt
3226 * delay via a delay multiplier encoding value
3228 if (skyhawk_chip(adapter
))
3229 mult_enc
= be_get_eq_delay_mult_enc(eqo
);
3231 be_eq_notify(adapter
, eqo
->q
.id
, true, false, num_evts
,
3234 /* As we'll continue in polling mode, count and clear events */
3235 be_eq_notify(adapter
, eqo
->q
.id
, false, false, num_evts
, 0);
3240 void be_detect_error(struct be_adapter
*adapter
)
3242 u32 ue_lo
= 0, ue_hi
= 0, ue_lo_mask
= 0, ue_hi_mask
= 0;
3243 u32 sliport_status
= 0, sliport_err1
= 0, sliport_err2
= 0;
3245 struct device
*dev
= &adapter
->pdev
->dev
;
3247 if (be_check_error(adapter
, BE_ERROR_HW
))
3250 if (lancer_chip(adapter
)) {
3251 sliport_status
= ioread32(adapter
->db
+ SLIPORT_STATUS_OFFSET
);
3252 if (sliport_status
& SLIPORT_STATUS_ERR_MASK
) {
3253 be_set_error(adapter
, BE_ERROR_UE
);
3254 sliport_err1
= ioread32(adapter
->db
+
3255 SLIPORT_ERROR1_OFFSET
);
3256 sliport_err2
= ioread32(adapter
->db
+
3257 SLIPORT_ERROR2_OFFSET
);
3258 /* Do not log error messages if its a FW reset */
3259 if (sliport_err1
== SLIPORT_ERROR_FW_RESET1
&&
3260 sliport_err2
== SLIPORT_ERROR_FW_RESET2
) {
3261 dev_info(dev
, "Firmware update in progress\n");
3263 dev_err(dev
, "Error detected in the card\n");
3264 dev_err(dev
, "ERR: sliport status 0x%x\n",
3266 dev_err(dev
, "ERR: sliport error1 0x%x\n",
3268 dev_err(dev
, "ERR: sliport error2 0x%x\n",
3273 ue_lo
= ioread32(adapter
->pcicfg
+ PCICFG_UE_STATUS_LOW
);
3274 ue_hi
= ioread32(adapter
->pcicfg
+ PCICFG_UE_STATUS_HIGH
);
3275 ue_lo_mask
= ioread32(adapter
->pcicfg
+
3276 PCICFG_UE_STATUS_LOW_MASK
);
3277 ue_hi_mask
= ioread32(adapter
->pcicfg
+
3278 PCICFG_UE_STATUS_HI_MASK
);
3280 ue_lo
= (ue_lo
& ~ue_lo_mask
);
3281 ue_hi
= (ue_hi
& ~ue_hi_mask
);
3283 /* On certain platforms BE hardware can indicate spurious UEs.
3284 * Allow HW to stop working completely in case of a real UE.
3285 * Hence not setting the hw_error for UE detection.
3288 if (ue_lo
|| ue_hi
) {
3289 dev_err(dev
, "Error detected in the adapter");
3290 if (skyhawk_chip(adapter
))
3291 be_set_error(adapter
, BE_ERROR_UE
);
3293 for (i
= 0; ue_lo
; ue_lo
>>= 1, i
++) {
3295 dev_err(dev
, "UE: %s bit set\n",
3296 ue_status_low_desc
[i
]);
3298 for (i
= 0; ue_hi
; ue_hi
>>= 1, i
++) {
3300 dev_err(dev
, "UE: %s bit set\n",
3301 ue_status_hi_desc
[i
]);
3307 static void be_msix_disable(struct be_adapter
*adapter
)
3309 if (msix_enabled(adapter
)) {
3310 pci_disable_msix(adapter
->pdev
);
3311 adapter
->num_msix_vec
= 0;
3312 adapter
->num_msix_roce_vec
= 0;
3316 static int be_msix_enable(struct be_adapter
*adapter
)
3318 unsigned int i
, max_roce_eqs
;
3319 struct device
*dev
= &adapter
->pdev
->dev
;
3322 /* If RoCE is supported, program the max number of vectors that
3323 * could be used for NIC and RoCE, else, just program the number
3324 * we'll use initially.
3326 if (be_roce_supported(adapter
)) {
3328 be_max_func_eqs(adapter
) - be_max_nic_eqs(adapter
);
3329 max_roce_eqs
= min(max_roce_eqs
, num_online_cpus());
3330 num_vec
= be_max_any_irqs(adapter
) + max_roce_eqs
;
3332 num_vec
= max(adapter
->cfg_num_rx_irqs
,
3333 adapter
->cfg_num_tx_irqs
);
3336 for (i
= 0; i
< num_vec
; i
++)
3337 adapter
->msix_entries
[i
].entry
= i
;
3339 num_vec
= pci_enable_msix_range(adapter
->pdev
, adapter
->msix_entries
,
3340 MIN_MSIX_VECTORS
, num_vec
);
3344 if (be_roce_supported(adapter
) && num_vec
> MIN_MSIX_VECTORS
) {
3345 adapter
->num_msix_roce_vec
= num_vec
/ 2;
3346 dev_info(dev
, "enabled %d MSI-x vector(s) for RoCE\n",
3347 adapter
->num_msix_roce_vec
);
3350 adapter
->num_msix_vec
= num_vec
- adapter
->num_msix_roce_vec
;
3352 dev_info(dev
, "enabled %d MSI-x vector(s) for NIC\n",
3353 adapter
->num_msix_vec
);
3357 dev_warn(dev
, "MSIx enable failed\n");
3359 /* INTx is not supported in VFs, so fail probe if enable_msix fails */
3360 if (be_virtfn(adapter
))
3365 static inline int be_msix_vec_get(struct be_adapter
*adapter
,
3366 struct be_eq_obj
*eqo
)
3368 return adapter
->msix_entries
[eqo
->msix_idx
].vector
;
3371 static int be_msix_register(struct be_adapter
*adapter
)
3373 struct net_device
*netdev
= adapter
->netdev
;
3374 struct be_eq_obj
*eqo
;
3377 for_all_evt_queues(adapter
, eqo
, i
) {
3378 sprintf(eqo
->desc
, "%s-q%d", netdev
->name
, i
);
3379 vec
= be_msix_vec_get(adapter
, eqo
);
3380 status
= request_irq(vec
, be_msix
, 0, eqo
->desc
, eqo
);
3384 irq_set_affinity_hint(vec
, eqo
->affinity_mask
);
3389 for (i
--; i
>= 0; i
--) {
3390 eqo
= &adapter
->eq_obj
[i
];
3391 free_irq(be_msix_vec_get(adapter
, eqo
), eqo
);
3393 dev_warn(&adapter
->pdev
->dev
, "MSIX Request IRQ failed - err %d\n",
3395 be_msix_disable(adapter
);
3399 static int be_irq_register(struct be_adapter
*adapter
)
3401 struct net_device
*netdev
= adapter
->netdev
;
3404 if (msix_enabled(adapter
)) {
3405 status
= be_msix_register(adapter
);
3408 /* INTx is not supported for VF */
3409 if (be_virtfn(adapter
))
3413 /* INTx: only the first EQ is used */
3414 netdev
->irq
= adapter
->pdev
->irq
;
3415 status
= request_irq(netdev
->irq
, be_intx
, IRQF_SHARED
, netdev
->name
,
3416 &adapter
->eq_obj
[0]);
3418 dev_err(&adapter
->pdev
->dev
,
3419 "INTx request IRQ failed - err %d\n", status
);
3423 adapter
->isr_registered
= true;
3427 static void be_irq_unregister(struct be_adapter
*adapter
)
3429 struct net_device
*netdev
= adapter
->netdev
;
3430 struct be_eq_obj
*eqo
;
3433 if (!adapter
->isr_registered
)
3437 if (!msix_enabled(adapter
)) {
3438 free_irq(netdev
->irq
, &adapter
->eq_obj
[0]);
3443 for_all_evt_queues(adapter
, eqo
, i
) {
3444 vec
= be_msix_vec_get(adapter
, eqo
);
3445 irq_set_affinity_hint(vec
, NULL
);
3450 adapter
->isr_registered
= false;
3453 static void be_rx_qs_destroy(struct be_adapter
*adapter
)
3455 struct rss_info
*rss
= &adapter
->rss_info
;
3456 struct be_queue_info
*q
;
3457 struct be_rx_obj
*rxo
;
3460 for_all_rx_queues(adapter
, rxo
, i
) {
3463 /* If RXQs are destroyed while in an "out of buffer"
3464 * state, there is a possibility of an HW stall on
3465 * Lancer. So, post 64 buffers to each queue to relieve
3466 * the "out of buffer" condition.
3467 * Make sure there's space in the RXQ before posting.
3469 if (lancer_chip(adapter
)) {
3470 be_rx_cq_clean(rxo
);
3471 if (atomic_read(&q
->used
) == 0)
3472 be_post_rx_frags(rxo
, GFP_KERNEL
,
3476 be_cmd_rxq_destroy(adapter
, q
);
3477 be_rx_cq_clean(rxo
);
3480 be_queue_free(adapter
, q
);
3483 if (rss
->rss_flags
) {
3484 rss
->rss_flags
= RSS_ENABLE_NONE
;
3485 be_cmd_rss_config(adapter
, rss
->rsstable
, rss
->rss_flags
,
3486 128, rss
->rss_hkey
);
3490 static void be_disable_if_filters(struct be_adapter
*adapter
)
3492 /* Don't delete MAC on BE3 VFs without FILTMGMT privilege */
3493 if (!BEx_chip(adapter
) || !be_virtfn(adapter
) ||
3494 check_privilege(adapter
, BE_PRIV_FILTMGMT
)) {
3495 be_dev_mac_del(adapter
, adapter
->pmac_id
[0]);
3496 eth_zero_addr(adapter
->dev_mac
);
3499 be_clear_uc_list(adapter
);
3500 be_clear_mc_list(adapter
);
3502 /* The IFACE flags are enabled in the open path and cleared
3503 * in the close path. When a VF gets detached from the host and
3504 * assigned to a VM the following happens:
3505 * - VF's IFACE flags get cleared in the detach path
3506 * - IFACE create is issued by the VF in the attach path
3507 * Due to a bug in the BE3/Skyhawk-R FW
3508 * (Lancer FW doesn't have the bug), the IFACE capability flags
3509 * specified along with the IFACE create cmd issued by a VF are not
3510 * honoured by FW. As a consequence, if a *new* driver
3511 * (that enables/disables IFACE flags in open/close)
3512 * is loaded in the host and an *old* driver is * used by a VM/VF,
3513 * the IFACE gets created *without* the needed flags.
3514 * To avoid this, disable RX-filter flags only for Lancer.
3516 if (lancer_chip(adapter
)) {
3517 be_cmd_rx_filter(adapter
, BE_IF_ALL_FILT_FLAGS
, OFF
);
3518 adapter
->if_flags
&= ~BE_IF_ALL_FILT_FLAGS
;
3522 static int be_close(struct net_device
*netdev
)
3524 struct be_adapter
*adapter
= netdev_priv(netdev
);
3525 struct be_eq_obj
*eqo
;
3528 /* This protection is needed as be_close() may be called even when the
3529 * adapter is in cleared state (after eeh perm failure)
3531 if (!(adapter
->flags
& BE_FLAGS_SETUP_DONE
))
3534 /* Before attempting cleanup ensure all the pending cmds in the
3535 * config_wq have finished execution
3537 flush_workqueue(be_wq
);
3539 be_disable_if_filters(adapter
);
3541 if (adapter
->flags
& BE_FLAGS_NAPI_ENABLED
) {
3542 for_all_evt_queues(adapter
, eqo
, i
) {
3543 napi_disable(&eqo
->napi
);
3545 adapter
->flags
&= ~BE_FLAGS_NAPI_ENABLED
;
3548 be_async_mcc_disable(adapter
);
3550 /* Wait for all pending tx completions to arrive so that
3551 * all tx skbs are freed.
3553 netif_tx_disable(netdev
);
3554 be_tx_compl_clean(adapter
);
3556 be_rx_qs_destroy(adapter
);
3558 for_all_evt_queues(adapter
, eqo
, i
) {
3559 if (msix_enabled(adapter
))
3560 synchronize_irq(be_msix_vec_get(adapter
, eqo
));
3562 synchronize_irq(netdev
->irq
);
3566 be_irq_unregister(adapter
);
3571 static int be_rx_qs_create(struct be_adapter
*adapter
)
3573 struct rss_info
*rss
= &adapter
->rss_info
;
3574 u8 rss_key
[RSS_HASH_KEY_LEN
];
3575 struct be_rx_obj
*rxo
;
3578 for_all_rx_queues(adapter
, rxo
, i
) {
3579 rc
= be_queue_alloc(adapter
, &rxo
->q
, RX_Q_LEN
,
3580 sizeof(struct be_eth_rx_d
));
3585 if (adapter
->need_def_rxq
|| !adapter
->num_rss_qs
) {
3586 rxo
= default_rxo(adapter
);
3587 rc
= be_cmd_rxq_create(adapter
, &rxo
->q
, rxo
->cq
.id
,
3588 rx_frag_size
, adapter
->if_handle
,
3589 false, &rxo
->rss_id
);
3594 for_all_rss_queues(adapter
, rxo
, i
) {
3595 rc
= be_cmd_rxq_create(adapter
, &rxo
->q
, rxo
->cq
.id
,
3596 rx_frag_size
, adapter
->if_handle
,
3597 true, &rxo
->rss_id
);
3602 if (be_multi_rxq(adapter
)) {
3603 for (j
= 0; j
< RSS_INDIR_TABLE_LEN
; j
+= adapter
->num_rss_qs
) {
3604 for_all_rss_queues(adapter
, rxo
, i
) {
3605 if ((j
+ i
) >= RSS_INDIR_TABLE_LEN
)
3607 rss
->rsstable
[j
+ i
] = rxo
->rss_id
;
3608 rss
->rss_queue
[j
+ i
] = i
;
3611 rss
->rss_flags
= RSS_ENABLE_TCP_IPV4
| RSS_ENABLE_IPV4
|
3612 RSS_ENABLE_TCP_IPV6
| RSS_ENABLE_IPV6
;
3614 if (!BEx_chip(adapter
))
3615 rss
->rss_flags
|= RSS_ENABLE_UDP_IPV4
|
3616 RSS_ENABLE_UDP_IPV6
;
3618 netdev_rss_key_fill(rss_key
, RSS_HASH_KEY_LEN
);
3619 rc
= be_cmd_rss_config(adapter
, rss
->rsstable
, rss
->rss_flags
,
3620 RSS_INDIR_TABLE_LEN
, rss_key
);
3622 rss
->rss_flags
= RSS_ENABLE_NONE
;
3626 memcpy(rss
->rss_hkey
, rss_key
, RSS_HASH_KEY_LEN
);
3628 /* Disable RSS, if only default RX Q is created */
3629 rss
->rss_flags
= RSS_ENABLE_NONE
;
3633 /* Post 1 less than RXQ-len to avoid head being equal to tail,
3634 * which is a queue empty condition
3636 for_all_rx_queues(adapter
, rxo
, i
)
3637 be_post_rx_frags(rxo
, GFP_KERNEL
, RX_Q_LEN
- 1);
3642 static int be_enable_if_filters(struct be_adapter
*adapter
)
3646 status
= be_cmd_rx_filter(adapter
, BE_IF_FILT_FLAGS_BASIC
, ON
);
3650 /* Normally this condition usually true as the ->dev_mac is zeroed.
3651 * But on BE3 VFs the initial MAC is pre-programmed by PF and
3652 * subsequent be_dev_mac_add() can fail (after fresh boot)
3654 if (!ether_addr_equal(adapter
->dev_mac
, adapter
->netdev
->dev_addr
)) {
3655 int old_pmac_id
= -1;
3657 /* Remember old programmed MAC if any - can happen on BE3 VF */
3658 if (!is_zero_ether_addr(adapter
->dev_mac
))
3659 old_pmac_id
= adapter
->pmac_id
[0];
3661 status
= be_dev_mac_add(adapter
, adapter
->netdev
->dev_addr
);
3665 /* Delete the old programmed MAC as we successfully programmed
3668 if (old_pmac_id
>= 0 && old_pmac_id
!= adapter
->pmac_id
[0])
3669 be_dev_mac_del(adapter
, old_pmac_id
);
3671 ether_addr_copy(adapter
->dev_mac
, adapter
->netdev
->dev_addr
);
3674 if (adapter
->vlans_added
)
3675 be_vid_config(adapter
);
3677 __be_set_rx_mode(adapter
);
3682 static int be_open(struct net_device
*netdev
)
3684 struct be_adapter
*adapter
= netdev_priv(netdev
);
3685 struct be_eq_obj
*eqo
;
3686 struct be_rx_obj
*rxo
;
3687 struct be_tx_obj
*txo
;
3691 status
= be_rx_qs_create(adapter
);
3695 status
= be_enable_if_filters(adapter
);
3699 status
= be_irq_register(adapter
);
3703 for_all_rx_queues(adapter
, rxo
, i
)
3704 be_cq_notify(adapter
, rxo
->cq
.id
, true, 0);
3706 for_all_tx_queues(adapter
, txo
, i
)
3707 be_cq_notify(adapter
, txo
->cq
.id
, true, 0);
3709 be_async_mcc_enable(adapter
);
3711 for_all_evt_queues(adapter
, eqo
, i
) {
3712 napi_enable(&eqo
->napi
);
3713 be_eq_notify(adapter
, eqo
->q
.id
, true, true, 0, 0);
3715 adapter
->flags
|= BE_FLAGS_NAPI_ENABLED
;
3717 status
= be_cmd_link_status_query(adapter
, NULL
, &link_status
, 0);
3719 be_link_status_update(adapter
, link_status
);
3721 netif_tx_start_all_queues(netdev
);
3722 if (skyhawk_chip(adapter
))
3723 udp_tunnel_get_rx_info(netdev
);
3727 be_close(adapter
->netdev
);
3731 static void be_vf_eth_addr_generate(struct be_adapter
*adapter
, u8
*mac
)
3735 addr
= jhash(adapter
->netdev
->dev_addr
, ETH_ALEN
, 0);
3737 mac
[5] = (u8
)(addr
& 0xFF);
3738 mac
[4] = (u8
)((addr
>> 8) & 0xFF);
3739 mac
[3] = (u8
)((addr
>> 16) & 0xFF);
3740 /* Use the OUI from the current MAC address */
3741 memcpy(mac
, adapter
->netdev
->dev_addr
, 3);
3745 * Generate a seed MAC address from the PF MAC Address using jhash.
3746 * MAC Address for VFs are assigned incrementally starting from the seed.
3747 * These addresses are programmed in the ASIC by the PF and the VF driver
3748 * queries for the MAC address during its probe.
3750 static int be_vf_eth_addr_config(struct be_adapter
*adapter
)
3755 struct be_vf_cfg
*vf_cfg
;
3757 be_vf_eth_addr_generate(adapter
, mac
);
3759 for_all_vfs(adapter
, vf_cfg
, vf
) {
3760 if (BEx_chip(adapter
))
3761 status
= be_cmd_pmac_add(adapter
, mac
,
3763 &vf_cfg
->pmac_id
, vf
+ 1);
3765 status
= be_cmd_set_mac(adapter
, mac
, vf_cfg
->if_handle
,
3769 dev_err(&adapter
->pdev
->dev
,
3770 "Mac address assignment failed for VF %d\n",
3773 memcpy(vf_cfg
->mac_addr
, mac
, ETH_ALEN
);
3780 static int be_vfs_mac_query(struct be_adapter
*adapter
)
3784 struct be_vf_cfg
*vf_cfg
;
3786 for_all_vfs(adapter
, vf_cfg
, vf
) {
3787 status
= be_cmd_get_active_mac(adapter
, vf_cfg
->pmac_id
,
3788 mac
, vf_cfg
->if_handle
,
3792 memcpy(vf_cfg
->mac_addr
, mac
, ETH_ALEN
);
3797 static void be_vf_clear(struct be_adapter
*adapter
)
3799 struct be_vf_cfg
*vf_cfg
;
3802 if (pci_vfs_assigned(adapter
->pdev
)) {
3803 dev_warn(&adapter
->pdev
->dev
,
3804 "VFs are assigned to VMs: not disabling VFs\n");
3808 pci_disable_sriov(adapter
->pdev
);
3810 for_all_vfs(adapter
, vf_cfg
, vf
) {
3811 if (BEx_chip(adapter
))
3812 be_cmd_pmac_del(adapter
, vf_cfg
->if_handle
,
3813 vf_cfg
->pmac_id
, vf
+ 1);
3815 be_cmd_set_mac(adapter
, NULL
, vf_cfg
->if_handle
,
3818 be_cmd_if_destroy(adapter
, vf_cfg
->if_handle
, vf
+ 1);
3821 if (BE3_chip(adapter
))
3822 be_cmd_set_hsw_config(adapter
, 0, 0,
3824 PORT_FWD_TYPE_PASSTHRU
, 0);
3826 kfree(adapter
->vf_cfg
);
3827 adapter
->num_vfs
= 0;
3828 adapter
->flags
&= ~BE_FLAGS_SRIOV_ENABLED
;
3831 static void be_clear_queues(struct be_adapter
*adapter
)
3833 be_mcc_queues_destroy(adapter
);
3834 be_rx_cqs_destroy(adapter
);
3835 be_tx_queues_destroy(adapter
);
3836 be_evt_queues_destroy(adapter
);
3839 static void be_cancel_worker(struct be_adapter
*adapter
)
3841 if (adapter
->flags
& BE_FLAGS_WORKER_SCHEDULED
) {
3842 cancel_delayed_work_sync(&adapter
->work
);
3843 adapter
->flags
&= ~BE_FLAGS_WORKER_SCHEDULED
;
3847 static void be_cancel_err_detection(struct be_adapter
*adapter
)
3849 struct be_error_recovery
*err_rec
= &adapter
->error_recovery
;
3851 if (!be_err_recovery_workq
)
3854 if (adapter
->flags
& BE_FLAGS_ERR_DETECTION_SCHEDULED
) {
3855 cancel_delayed_work_sync(&err_rec
->err_detection_work
);
3856 adapter
->flags
&= ~BE_FLAGS_ERR_DETECTION_SCHEDULED
;
3860 static int be_enable_vxlan_offloads(struct be_adapter
*adapter
)
3862 struct net_device
*netdev
= adapter
->netdev
;
3863 struct device
*dev
= &adapter
->pdev
->dev
;
3864 struct be_vxlan_port
*vxlan_port
;
3868 vxlan_port
= list_first_entry(&adapter
->vxlan_port_list
,
3869 struct be_vxlan_port
, list
);
3870 port
= vxlan_port
->port
;
3872 status
= be_cmd_manage_iface(adapter
, adapter
->if_handle
,
3873 OP_CONVERT_NORMAL_TO_TUNNEL
);
3875 dev_warn(dev
, "Failed to convert normal interface to tunnel\n");
3878 adapter
->flags
|= BE_FLAGS_VXLAN_OFFLOADS
;
3880 status
= be_cmd_set_vxlan_port(adapter
, port
);
3882 dev_warn(dev
, "Failed to add VxLAN port\n");
3885 adapter
->vxlan_port
= port
;
3887 netdev
->hw_enc_features
|= NETIF_F_IP_CSUM
| NETIF_F_IPV6_CSUM
|
3888 NETIF_F_TSO
| NETIF_F_TSO6
|
3889 NETIF_F_GSO_UDP_TUNNEL
;
3890 netdev
->hw_features
|= NETIF_F_GSO_UDP_TUNNEL
;
3891 netdev
->features
|= NETIF_F_GSO_UDP_TUNNEL
;
3893 dev_info(dev
, "Enabled VxLAN offloads for UDP port %d\n",
3898 static void be_disable_vxlan_offloads(struct be_adapter
*adapter
)
3900 struct net_device
*netdev
= adapter
->netdev
;
3902 if (adapter
->flags
& BE_FLAGS_VXLAN_OFFLOADS
)
3903 be_cmd_manage_iface(adapter
, adapter
->if_handle
,
3904 OP_CONVERT_TUNNEL_TO_NORMAL
);
3906 if (adapter
->vxlan_port
)
3907 be_cmd_set_vxlan_port(adapter
, 0);
3909 adapter
->flags
&= ~BE_FLAGS_VXLAN_OFFLOADS
;
3910 adapter
->vxlan_port
= 0;
3912 netdev
->hw_enc_features
= 0;
3913 netdev
->hw_features
&= ~(NETIF_F_GSO_UDP_TUNNEL
);
3914 netdev
->features
&= ~(NETIF_F_GSO_UDP_TUNNEL
);
3917 static void be_calculate_vf_res(struct be_adapter
*adapter
, u16 num_vfs
,
3918 struct be_resources
*vft_res
)
3920 struct be_resources res
= adapter
->pool_res
;
3921 u32 vf_if_cap_flags
= res
.vf_if_cap_flags
;
3922 struct be_resources res_mod
= {0};
3925 /* Distribute the queue resources among the PF and it's VFs */
3927 /* Divide the rx queues evenly among the VFs and the PF, capped
3928 * at VF-EQ-count. Any remainder queues belong to the PF.
3930 num_vf_qs
= min(SH_VF_MAX_NIC_EQS
,
3931 res
.max_rss_qs
/ (num_vfs
+ 1));
3933 /* Skyhawk-R chip supports only MAX_PORT_RSS_TABLES
3934 * RSS Tables per port. Provide RSS on VFs, only if number of
3935 * VFs requested is less than it's PF Pool's RSS Tables limit.
3937 if (num_vfs
>= be_max_pf_pool_rss_tables(adapter
))
3941 /* Resource with fields set to all '1's by GET_PROFILE_CONFIG cmd,
3942 * which are modifiable using SET_PROFILE_CONFIG cmd.
3944 be_cmd_get_profile_config(adapter
, &res_mod
, NULL
, ACTIVE_PROFILE_TYPE
,
3945 RESOURCE_MODIFIABLE
, 0);
3947 /* If RSS IFACE capability flags are modifiable for a VF, set the
3948 * capability flag as valid and set RSS and DEFQ_RSS IFACE flags if
3949 * more than 1 RSSQ is available for a VF.
3950 * Otherwise, provision only 1 queue pair for VF.
3952 if (res_mod
.vf_if_cap_flags
& BE_IF_FLAGS_RSS
) {
3953 vft_res
->flags
|= BIT(IF_CAPS_FLAGS_VALID_SHIFT
);
3954 if (num_vf_qs
> 1) {
3955 vf_if_cap_flags
|= BE_IF_FLAGS_RSS
;
3956 if (res
.if_cap_flags
& BE_IF_FLAGS_DEFQ_RSS
)
3957 vf_if_cap_flags
|= BE_IF_FLAGS_DEFQ_RSS
;
3959 vf_if_cap_flags
&= ~(BE_IF_FLAGS_RSS
|
3960 BE_IF_FLAGS_DEFQ_RSS
);
3966 if (res_mod
.vf_if_cap_flags
& BE_IF_FLAGS_VLAN_PROMISCUOUS
) {
3967 vft_res
->flags
|= BIT(IF_CAPS_FLAGS_VALID_SHIFT
);
3968 vf_if_cap_flags
&= ~BE_IF_FLAGS_VLAN_PROMISCUOUS
;
3971 vft_res
->vf_if_cap_flags
= vf_if_cap_flags
;
3972 vft_res
->max_rx_qs
= num_vf_qs
;
3973 vft_res
->max_rss_qs
= num_vf_qs
;
3974 vft_res
->max_tx_qs
= res
.max_tx_qs
/ (num_vfs
+ 1);
3975 vft_res
->max_cq_count
= res
.max_cq_count
/ (num_vfs
+ 1);
3977 /* Distribute unicast MACs, VLANs, IFACE count and MCCQ count equally
3978 * among the PF and it's VFs, if the fields are changeable
3980 if (res_mod
.max_uc_mac
== FIELD_MODIFIABLE
)
3981 vft_res
->max_uc_mac
= res
.max_uc_mac
/ (num_vfs
+ 1);
3983 if (res_mod
.max_vlans
== FIELD_MODIFIABLE
)
3984 vft_res
->max_vlans
= res
.max_vlans
/ (num_vfs
+ 1);
3986 if (res_mod
.max_iface_count
== FIELD_MODIFIABLE
)
3987 vft_res
->max_iface_count
= res
.max_iface_count
/ (num_vfs
+ 1);
3989 if (res_mod
.max_mcc_count
== FIELD_MODIFIABLE
)
3990 vft_res
->max_mcc_count
= res
.max_mcc_count
/ (num_vfs
+ 1);
3993 static void be_if_destroy(struct be_adapter
*adapter
)
3995 be_cmd_if_destroy(adapter
, adapter
->if_handle
, 0);
3997 kfree(adapter
->pmac_id
);
3998 adapter
->pmac_id
= NULL
;
4000 kfree(adapter
->mc_list
);
4001 adapter
->mc_list
= NULL
;
4003 kfree(adapter
->uc_list
);
4004 adapter
->uc_list
= NULL
;
4007 static int be_clear(struct be_adapter
*adapter
)
4009 struct pci_dev
*pdev
= adapter
->pdev
;
4010 struct be_resources vft_res
= {0};
4012 be_cancel_worker(adapter
);
4014 flush_workqueue(be_wq
);
4016 if (sriov_enabled(adapter
))
4017 be_vf_clear(adapter
);
4019 /* Re-configure FW to distribute resources evenly across max-supported
4020 * number of VFs, only when VFs are not already enabled.
4022 if (skyhawk_chip(adapter
) && be_physfn(adapter
) &&
4023 !pci_vfs_assigned(pdev
)) {
4024 be_calculate_vf_res(adapter
,
4025 pci_sriov_get_totalvfs(pdev
),
4027 be_cmd_set_sriov_config(adapter
, adapter
->pool_res
,
4028 pci_sriov_get_totalvfs(pdev
),
4032 be_disable_vxlan_offloads(adapter
);
4034 be_if_destroy(adapter
);
4036 be_clear_queues(adapter
);
4038 be_msix_disable(adapter
);
4039 adapter
->flags
&= ~BE_FLAGS_SETUP_DONE
;
4043 static int be_vfs_if_create(struct be_adapter
*adapter
)
4045 struct be_resources res
= {0};
4046 u32 cap_flags
, en_flags
, vf
;
4047 struct be_vf_cfg
*vf_cfg
;
4050 /* If a FW profile exists, then cap_flags are updated */
4051 cap_flags
= BE_VF_IF_EN_FLAGS
;
4053 for_all_vfs(adapter
, vf_cfg
, vf
) {
4054 if (!BE3_chip(adapter
)) {
4055 status
= be_cmd_get_profile_config(adapter
, &res
, NULL
,
4056 ACTIVE_PROFILE_TYPE
,
4060 cap_flags
= res
.if_cap_flags
;
4061 /* Prevent VFs from enabling VLAN promiscuous
4064 cap_flags
&= ~BE_IF_FLAGS_VLAN_PROMISCUOUS
;
4068 /* PF should enable IF flags during proxy if_create call */
4069 en_flags
= cap_flags
& BE_VF_IF_EN_FLAGS
;
4070 status
= be_cmd_if_create(adapter
, cap_flags
, en_flags
,
4071 &vf_cfg
->if_handle
, vf
+ 1);
4079 static int be_vf_setup_init(struct be_adapter
*adapter
)
4081 struct be_vf_cfg
*vf_cfg
;
4084 adapter
->vf_cfg
= kcalloc(adapter
->num_vfs
, sizeof(*vf_cfg
),
4086 if (!adapter
->vf_cfg
)
4089 for_all_vfs(adapter
, vf_cfg
, vf
) {
4090 vf_cfg
->if_handle
= -1;
4091 vf_cfg
->pmac_id
= -1;
4096 static int be_vf_setup(struct be_adapter
*adapter
)
4098 struct device
*dev
= &adapter
->pdev
->dev
;
4099 struct be_vf_cfg
*vf_cfg
;
4100 int status
, old_vfs
, vf
;
4103 old_vfs
= pci_num_vf(adapter
->pdev
);
4105 status
= be_vf_setup_init(adapter
);
4110 for_all_vfs(adapter
, vf_cfg
, vf
) {
4111 status
= be_cmd_get_if_id(adapter
, vf_cfg
, vf
);
4116 status
= be_vfs_mac_query(adapter
);
4120 status
= be_vfs_if_create(adapter
);
4124 status
= be_vf_eth_addr_config(adapter
);
4129 for_all_vfs(adapter
, vf_cfg
, vf
) {
4130 /* Allow VFs to programs MAC/VLAN filters */
4131 status
= be_cmd_get_fn_privileges(adapter
, &vf_cfg
->privileges
,
4133 if (!status
&& !(vf_cfg
->privileges
& BE_PRIV_FILTMGMT
)) {
4134 status
= be_cmd_set_fn_privileges(adapter
,
4135 vf_cfg
->privileges
|
4139 vf_cfg
->privileges
|= BE_PRIV_FILTMGMT
;
4140 dev_info(dev
, "VF%d has FILTMGMT privilege\n",
4145 /* Allow full available bandwidth */
4147 be_cmd_config_qos(adapter
, 0, 0, vf
+ 1);
4149 status
= be_cmd_get_hsw_config(adapter
, NULL
, vf
+ 1,
4150 vf_cfg
->if_handle
, NULL
,
4153 vf_cfg
->spoofchk
= spoofchk
;
4156 be_cmd_enable_vf(adapter
, vf
+ 1);
4157 be_cmd_set_logical_link_config(adapter
,
4158 IFLA_VF_LINK_STATE_AUTO
,
4164 status
= pci_enable_sriov(adapter
->pdev
, adapter
->num_vfs
);
4166 dev_err(dev
, "SRIOV enable failed\n");
4167 adapter
->num_vfs
= 0;
4172 if (BE3_chip(adapter
)) {
4173 /* On BE3, enable VEB only when SRIOV is enabled */
4174 status
= be_cmd_set_hsw_config(adapter
, 0, 0,
4176 PORT_FWD_TYPE_VEB
, 0);
4181 adapter
->flags
|= BE_FLAGS_SRIOV_ENABLED
;
4184 dev_err(dev
, "VF setup failed\n");
4185 be_vf_clear(adapter
);
4189 /* Converting function_mode bits on BE3 to SH mc_type enums */
4191 static u8
be_convert_mc_type(u32 function_mode
)
4193 if (function_mode
& VNIC_MODE
&& function_mode
& QNQ_MODE
)
4195 else if (function_mode
& QNQ_MODE
)
4197 else if (function_mode
& VNIC_MODE
)
4199 else if (function_mode
& UMC_ENABLED
)
4205 /* On BE2/BE3 FW does not suggest the supported limits */
4206 static void BEx_get_resources(struct be_adapter
*adapter
,
4207 struct be_resources
*res
)
4209 bool use_sriov
= adapter
->num_vfs
? 1 : 0;
4211 if (be_physfn(adapter
))
4212 res
->max_uc_mac
= BE_UC_PMAC_COUNT
;
4214 res
->max_uc_mac
= BE_VF_UC_PMAC_COUNT
;
4216 adapter
->mc_type
= be_convert_mc_type(adapter
->function_mode
);
4218 if (be_is_mc(adapter
)) {
4219 /* Assuming that there are 4 channels per port,
4220 * when multi-channel is enabled
4222 if (be_is_qnq_mode(adapter
))
4223 res
->max_vlans
= BE_NUM_VLANS_SUPPORTED
/8;
4225 /* In a non-qnq multichannel mode, the pvid
4226 * takes up one vlan entry
4228 res
->max_vlans
= (BE_NUM_VLANS_SUPPORTED
/ 4) - 1;
4230 res
->max_vlans
= BE_NUM_VLANS_SUPPORTED
;
4233 res
->max_mcast_mac
= BE_MAX_MC
;
4235 /* 1) For BE3 1Gb ports, FW does not support multiple TXQs
4236 * 2) Create multiple TX rings on a BE3-R multi-channel interface
4237 * *only* if it is RSS-capable.
4239 if (BE2_chip(adapter
) || use_sriov
|| (adapter
->port_num
> 1) ||
4240 be_virtfn(adapter
) ||
4241 (be_is_mc(adapter
) &&
4242 !(adapter
->function_caps
& BE_FUNCTION_CAPS_RSS
))) {
4244 } else if (adapter
->function_caps
& BE_FUNCTION_CAPS_SUPER_NIC
) {
4245 struct be_resources super_nic_res
= {0};
4247 /* On a SuperNIC profile, the driver needs to use the
4248 * GET_PROFILE_CONFIG cmd to query the per-function TXQ limits
4250 be_cmd_get_profile_config(adapter
, &super_nic_res
, NULL
,
4251 ACTIVE_PROFILE_TYPE
, RESOURCE_LIMITS
,
4253 /* Some old versions of BE3 FW don't report max_tx_qs value */
4254 res
->max_tx_qs
= super_nic_res
.max_tx_qs
? : BE3_MAX_TX_QS
;
4256 res
->max_tx_qs
= BE3_MAX_TX_QS
;
4259 if ((adapter
->function_caps
& BE_FUNCTION_CAPS_RSS
) &&
4260 !use_sriov
&& be_physfn(adapter
))
4261 res
->max_rss_qs
= (adapter
->be3_native
) ?
4262 BE3_MAX_RSS_QS
: BE2_MAX_RSS_QS
;
4263 res
->max_rx_qs
= res
->max_rss_qs
+ 1;
4265 if (be_physfn(adapter
))
4266 res
->max_evt_qs
= (be_max_vfs(adapter
) > 0) ?
4267 BE3_SRIOV_MAX_EVT_QS
: BE3_MAX_EVT_QS
;
4269 res
->max_evt_qs
= 1;
4271 res
->if_cap_flags
= BE_IF_CAP_FLAGS_WANT
;
4272 res
->if_cap_flags
&= ~BE_IF_FLAGS_DEFQ_RSS
;
4273 if (!(adapter
->function_caps
& BE_FUNCTION_CAPS_RSS
))
4274 res
->if_cap_flags
&= ~BE_IF_FLAGS_RSS
;
4277 static void be_setup_init(struct be_adapter
*adapter
)
4279 adapter
->vlan_prio_bmap
= 0xff;
4280 adapter
->phy
.link_speed
= -1;
4281 adapter
->if_handle
= -1;
4282 adapter
->be3_native
= false;
4283 adapter
->if_flags
= 0;
4284 adapter
->phy_state
= BE_UNKNOWN_PHY_STATE
;
4285 if (be_physfn(adapter
))
4286 adapter
->cmd_privileges
= MAX_PRIVILEGES
;
4288 adapter
->cmd_privileges
= MIN_PRIVILEGES
;
4291 /* HW supports only MAX_PORT_RSS_TABLES RSS Policy Tables per port.
4292 * However, this HW limitation is not exposed to the host via any SLI cmd.
4293 * As a result, in the case of SRIOV and in particular multi-partition configs
4294 * the driver needs to calcuate a proportional share of RSS Tables per PF-pool
4295 * for distribution between the VFs. This self-imposed limit will determine the
4296 * no: of VFs for which RSS can be enabled.
4298 static void be_calculate_pf_pool_rss_tables(struct be_adapter
*adapter
)
4300 struct be_port_resources port_res
= {0};
4301 u8 rss_tables_on_port
;
4302 u16 max_vfs
= be_max_vfs(adapter
);
4304 be_cmd_get_profile_config(adapter
, NULL
, &port_res
, SAVED_PROFILE_TYPE
,
4305 RESOURCE_LIMITS
, 0);
4307 rss_tables_on_port
= MAX_PORT_RSS_TABLES
- port_res
.nic_pfs
;
4309 /* Each PF Pool's RSS Tables limit =
4310 * PF's Max VFs / Total_Max_VFs on Port * RSS Tables on Port
4312 adapter
->pool_res
.max_rss_tables
=
4313 max_vfs
* rss_tables_on_port
/ port_res
.max_vfs
;
4316 static int be_get_sriov_config(struct be_adapter
*adapter
)
4318 struct be_resources res
= {0};
4319 int max_vfs
, old_vfs
;
4321 be_cmd_get_profile_config(adapter
, &res
, NULL
, ACTIVE_PROFILE_TYPE
,
4322 RESOURCE_LIMITS
, 0);
4324 /* Some old versions of BE3 FW don't report max_vfs value */
4325 if (BE3_chip(adapter
) && !res
.max_vfs
) {
4326 max_vfs
= pci_sriov_get_totalvfs(adapter
->pdev
);
4327 res
.max_vfs
= max_vfs
> 0 ? min(MAX_VFS
, max_vfs
) : 0;
4330 adapter
->pool_res
= res
;
4332 /* If during previous unload of the driver, the VFs were not disabled,
4333 * then we cannot rely on the PF POOL limits for the TotalVFs value.
4334 * Instead use the TotalVFs value stored in the pci-dev struct.
4336 old_vfs
= pci_num_vf(adapter
->pdev
);
4338 dev_info(&adapter
->pdev
->dev
, "%d VFs are already enabled\n",
4341 adapter
->pool_res
.max_vfs
=
4342 pci_sriov_get_totalvfs(adapter
->pdev
);
4343 adapter
->num_vfs
= old_vfs
;
4346 if (skyhawk_chip(adapter
) && be_max_vfs(adapter
) && !old_vfs
) {
4347 be_calculate_pf_pool_rss_tables(adapter
);
4348 dev_info(&adapter
->pdev
->dev
,
4349 "RSS can be enabled for all VFs if num_vfs <= %d\n",
4350 be_max_pf_pool_rss_tables(adapter
));
4355 static void be_alloc_sriov_res(struct be_adapter
*adapter
)
4357 int old_vfs
= pci_num_vf(adapter
->pdev
);
4358 struct be_resources vft_res
= {0};
4361 be_get_sriov_config(adapter
);
4364 pci_sriov_set_totalvfs(adapter
->pdev
, be_max_vfs(adapter
));
4366 /* When the HW is in SRIOV capable configuration, the PF-pool
4367 * resources are given to PF during driver load, if there are no
4368 * old VFs. This facility is not available in BE3 FW.
4369 * Also, this is done by FW in Lancer chip.
4371 if (skyhawk_chip(adapter
) && be_max_vfs(adapter
) && !old_vfs
) {
4372 be_calculate_vf_res(adapter
, 0, &vft_res
);
4373 status
= be_cmd_set_sriov_config(adapter
, adapter
->pool_res
, 0,
4376 dev_err(&adapter
->pdev
->dev
,
4377 "Failed to optimize SRIOV resources\n");
4381 static int be_get_resources(struct be_adapter
*adapter
)
4383 struct device
*dev
= &adapter
->pdev
->dev
;
4384 struct be_resources res
= {0};
4387 /* For Lancer, SH etc read per-function resource limits from FW.
4388 * GET_FUNC_CONFIG returns per function guaranteed limits.
4389 * GET_PROFILE_CONFIG returns PCI-E related limits PF-pool limits
4391 if (BEx_chip(adapter
)) {
4392 BEx_get_resources(adapter
, &res
);
4394 status
= be_cmd_get_func_config(adapter
, &res
);
4398 /* If a deafault RXQ must be created, we'll use up one RSSQ*/
4399 if (res
.max_rss_qs
&& res
.max_rss_qs
== res
.max_rx_qs
&&
4400 !(res
.if_cap_flags
& BE_IF_FLAGS_DEFQ_RSS
))
4401 res
.max_rss_qs
-= 1;
4404 /* If RoCE is supported stash away half the EQs for RoCE */
4405 res
.max_nic_evt_qs
= be_roce_supported(adapter
) ?
4406 res
.max_evt_qs
/ 2 : res
.max_evt_qs
;
4409 /* If FW supports RSS default queue, then skip creating non-RSS
4410 * queue for non-IP traffic.
4412 adapter
->need_def_rxq
= (be_if_cap_flags(adapter
) &
4413 BE_IF_FLAGS_DEFQ_RSS
) ? 0 : 1;
4415 dev_info(dev
, "Max: txqs %d, rxqs %d, rss %d, eqs %d, vfs %d\n",
4416 be_max_txqs(adapter
), be_max_rxqs(adapter
),
4417 be_max_rss(adapter
), be_max_nic_eqs(adapter
),
4418 be_max_vfs(adapter
));
4419 dev_info(dev
, "Max: uc-macs %d, mc-macs %d, vlans %d\n",
4420 be_max_uc(adapter
), be_max_mc(adapter
),
4421 be_max_vlans(adapter
));
4423 /* Ensure RX and TX queues are created in pairs at init time */
4424 adapter
->cfg_num_rx_irqs
=
4425 min_t(u16
, netif_get_num_default_rss_queues(),
4426 be_max_qp_irqs(adapter
));
4427 adapter
->cfg_num_tx_irqs
= adapter
->cfg_num_rx_irqs
;
4431 static int be_get_config(struct be_adapter
*adapter
)
4436 status
= be_cmd_get_cntl_attributes(adapter
);
4440 status
= be_cmd_query_fw_cfg(adapter
);
4444 if (!lancer_chip(adapter
) && be_physfn(adapter
))
4445 be_cmd_get_fat_dump_len(adapter
, &adapter
->fat_dump_len
);
4447 if (BEx_chip(adapter
)) {
4448 level
= be_cmd_get_fw_log_level(adapter
);
4449 adapter
->msg_enable
=
4450 level
<= FW_LOG_LEVEL_DEFAULT
? NETIF_MSG_HW
: 0;
4453 be_cmd_get_acpi_wol_cap(adapter
);
4454 pci_enable_wake(adapter
->pdev
, PCI_D3hot
, adapter
->wol_en
);
4455 pci_enable_wake(adapter
->pdev
, PCI_D3cold
, adapter
->wol_en
);
4457 be_cmd_query_port_name(adapter
);
4459 if (be_physfn(adapter
)) {
4460 status
= be_cmd_get_active_profile(adapter
, &profile_id
);
4462 dev_info(&adapter
->pdev
->dev
,
4463 "Using profile 0x%x\n", profile_id
);
4469 static int be_mac_setup(struct be_adapter
*adapter
)
4474 if (is_zero_ether_addr(adapter
->netdev
->dev_addr
)) {
4475 status
= be_cmd_get_perm_mac(adapter
, mac
);
4479 memcpy(adapter
->netdev
->dev_addr
, mac
, ETH_ALEN
);
4480 memcpy(adapter
->netdev
->perm_addr
, mac
, ETH_ALEN
);
4482 /* Initial MAC for BE3 VFs is already programmed by PF */
4483 if (BEx_chip(adapter
) && be_virtfn(adapter
))
4484 memcpy(adapter
->dev_mac
, mac
, ETH_ALEN
);
4490 static void be_schedule_worker(struct be_adapter
*adapter
)
4492 queue_delayed_work(be_wq
, &adapter
->work
, msecs_to_jiffies(1000));
4493 adapter
->flags
|= BE_FLAGS_WORKER_SCHEDULED
;
4496 static void be_destroy_err_recovery_workq(void)
4498 if (!be_err_recovery_workq
)
4501 flush_workqueue(be_err_recovery_workq
);
4502 destroy_workqueue(be_err_recovery_workq
);
4503 be_err_recovery_workq
= NULL
;
4506 static void be_schedule_err_detection(struct be_adapter
*adapter
, u32 delay
)
4508 struct be_error_recovery
*err_rec
= &adapter
->error_recovery
;
4510 if (!be_err_recovery_workq
)
4513 queue_delayed_work(be_err_recovery_workq
, &err_rec
->err_detection_work
,
4514 msecs_to_jiffies(delay
));
4515 adapter
->flags
|= BE_FLAGS_ERR_DETECTION_SCHEDULED
;
4518 static int be_setup_queues(struct be_adapter
*adapter
)
4520 struct net_device
*netdev
= adapter
->netdev
;
4523 status
= be_evt_queues_create(adapter
);
4527 status
= be_tx_qs_create(adapter
);
4531 status
= be_rx_cqs_create(adapter
);
4535 status
= be_mcc_queues_create(adapter
);
4539 status
= netif_set_real_num_rx_queues(netdev
, adapter
->num_rx_qs
);
4543 status
= netif_set_real_num_tx_queues(netdev
, adapter
->num_tx_qs
);
4549 dev_err(&adapter
->pdev
->dev
, "queue_setup failed\n");
4553 static int be_if_create(struct be_adapter
*adapter
)
4555 u32 en_flags
= BE_IF_FLAGS_RSS
| BE_IF_FLAGS_DEFQ_RSS
;
4556 u32 cap_flags
= be_if_cap_flags(adapter
);
4559 /* alloc required memory for other filtering fields */
4560 adapter
->pmac_id
= kcalloc(be_max_uc(adapter
),
4561 sizeof(*adapter
->pmac_id
), GFP_KERNEL
);
4562 if (!adapter
->pmac_id
)
4565 adapter
->mc_list
= kcalloc(be_max_mc(adapter
),
4566 sizeof(*adapter
->mc_list
), GFP_KERNEL
);
4567 if (!adapter
->mc_list
)
4570 adapter
->uc_list
= kcalloc(be_max_uc(adapter
),
4571 sizeof(*adapter
->uc_list
), GFP_KERNEL
);
4572 if (!adapter
->uc_list
)
4575 if (adapter
->cfg_num_rx_irqs
== 1)
4576 cap_flags
&= ~(BE_IF_FLAGS_DEFQ_RSS
| BE_IF_FLAGS_RSS
);
4578 en_flags
&= cap_flags
;
4579 /* will enable all the needed filter flags in be_open() */
4580 status
= be_cmd_if_create(adapter
, be_if_cap_flags(adapter
), en_flags
,
4581 &adapter
->if_handle
, 0);
4589 int be_update_queues(struct be_adapter
*adapter
)
4591 struct net_device
*netdev
= adapter
->netdev
;
4594 if (netif_running(netdev
))
4597 be_cancel_worker(adapter
);
4599 /* If any vectors have been shared with RoCE we cannot re-program
4602 if (!adapter
->num_msix_roce_vec
)
4603 be_msix_disable(adapter
);
4605 be_clear_queues(adapter
);
4606 status
= be_cmd_if_destroy(adapter
, adapter
->if_handle
, 0);
4610 if (!msix_enabled(adapter
)) {
4611 status
= be_msix_enable(adapter
);
4616 status
= be_if_create(adapter
);
4620 status
= be_setup_queues(adapter
);
4624 be_schedule_worker(adapter
);
4626 if (netif_running(netdev
))
4627 status
= be_open(netdev
);
4632 static inline int fw_major_num(const char *fw_ver
)
4634 int fw_major
= 0, i
;
4636 i
= sscanf(fw_ver
, "%d.", &fw_major
);
4643 /* If it is error recovery, FLR the PF
4644 * Else if any VFs are already enabled don't FLR the PF
4646 static bool be_reset_required(struct be_adapter
*adapter
)
4648 if (be_error_recovering(adapter
))
4651 return pci_num_vf(adapter
->pdev
) == 0;
4654 /* Wait for the FW to be ready and perform the required initialization */
4655 static int be_func_init(struct be_adapter
*adapter
)
4659 status
= be_fw_wait_ready(adapter
);
4663 /* FW is now ready; clear errors to allow cmds/doorbell */
4664 be_clear_error(adapter
, BE_CLEAR_ALL
);
4666 if (be_reset_required(adapter
)) {
4667 status
= be_cmd_reset_function(adapter
);
4671 /* Wait for interrupts to quiesce after an FLR */
4675 /* Tell FW we're ready to fire cmds */
4676 status
= be_cmd_fw_init(adapter
);
4680 /* Allow interrupts for other ULPs running on NIC function */
4681 be_intr_set(adapter
, true);
4686 static int be_setup(struct be_adapter
*adapter
)
4688 struct device
*dev
= &adapter
->pdev
->dev
;
4691 status
= be_func_init(adapter
);
4695 be_setup_init(adapter
);
4697 if (!lancer_chip(adapter
))
4698 be_cmd_req_native_mode(adapter
);
4700 /* invoke this cmd first to get pf_num and vf_num which are needed
4701 * for issuing profile related cmds
4703 if (!BEx_chip(adapter
)) {
4704 status
= be_cmd_get_func_config(adapter
, NULL
);
4709 status
= be_get_config(adapter
);
4713 if (!BE2_chip(adapter
) && be_physfn(adapter
))
4714 be_alloc_sriov_res(adapter
);
4716 status
= be_get_resources(adapter
);
4720 status
= be_msix_enable(adapter
);
4724 /* will enable all the needed filter flags in be_open() */
4725 status
= be_if_create(adapter
);
4729 /* Updating real_num_tx/rx_queues() requires rtnl_lock() */
4731 status
= be_setup_queues(adapter
);
4736 be_cmd_get_fn_privileges(adapter
, &adapter
->cmd_privileges
, 0);
4738 status
= be_mac_setup(adapter
);
4742 be_cmd_get_fw_ver(adapter
);
4743 dev_info(dev
, "FW version is %s\n", adapter
->fw_ver
);
4745 if (BE2_chip(adapter
) && fw_major_num(adapter
->fw_ver
) < 4) {
4746 dev_err(dev
, "Firmware on card is old(%s), IRQs may not work",
4748 dev_err(dev
, "Please upgrade firmware to version >= 4.0\n");
4751 status
= be_cmd_set_flow_control(adapter
, adapter
->tx_fc
,
4754 be_cmd_get_flow_control(adapter
, &adapter
->tx_fc
,
4757 dev_info(&adapter
->pdev
->dev
, "HW Flow control - TX:%d RX:%d\n",
4758 adapter
->tx_fc
, adapter
->rx_fc
);
4760 if (be_physfn(adapter
))
4761 be_cmd_set_logical_link_config(adapter
,
4762 IFLA_VF_LINK_STATE_AUTO
, 0);
4764 /* BE3 EVB echoes broadcast/multicast packets back to PF's vport
4765 * confusing a linux bridge or OVS that it might be connected to.
4766 * Set the EVB to PASSTHRU mode which effectively disables the EVB
4767 * when SRIOV is not enabled.
4769 if (BE3_chip(adapter
))
4770 be_cmd_set_hsw_config(adapter
, 0, 0, adapter
->if_handle
,
4771 PORT_FWD_TYPE_PASSTHRU
, 0);
4773 if (adapter
->num_vfs
)
4774 be_vf_setup(adapter
);
4776 status
= be_cmd_get_phy_info(adapter
);
4777 if (!status
&& be_pause_supported(adapter
))
4778 adapter
->phy
.fc_autoneg
= 1;
4780 if (be_physfn(adapter
) && !lancer_chip(adapter
))
4781 be_cmd_set_features(adapter
);
4783 be_schedule_worker(adapter
);
4784 adapter
->flags
|= BE_FLAGS_SETUP_DONE
;
4791 #ifdef CONFIG_NET_POLL_CONTROLLER
4792 static void be_netpoll(struct net_device
*netdev
)
4794 struct be_adapter
*adapter
= netdev_priv(netdev
);
4795 struct be_eq_obj
*eqo
;
4798 for_all_evt_queues(adapter
, eqo
, i
) {
4799 be_eq_notify(eqo
->adapter
, eqo
->q
.id
, false, true, 0, 0);
4800 napi_schedule(&eqo
->napi
);
4805 int be_load_fw(struct be_adapter
*adapter
, u8
*fw_file
)
4807 const struct firmware
*fw
;
4810 if (!netif_running(adapter
->netdev
)) {
4811 dev_err(&adapter
->pdev
->dev
,
4812 "Firmware load not allowed (interface is down)\n");
4816 status
= request_firmware(&fw
, fw_file
, &adapter
->pdev
->dev
);
4820 dev_info(&adapter
->pdev
->dev
, "Flashing firmware file %s\n", fw_file
);
4822 if (lancer_chip(adapter
))
4823 status
= lancer_fw_download(adapter
, fw
);
4825 status
= be_fw_download(adapter
, fw
);
4828 be_cmd_get_fw_ver(adapter
);
4831 release_firmware(fw
);
4835 static int be_ndo_bridge_setlink(struct net_device
*dev
, struct nlmsghdr
*nlh
,
4838 struct be_adapter
*adapter
= netdev_priv(dev
);
4839 struct nlattr
*attr
, *br_spec
;
4844 if (!sriov_enabled(adapter
))
4847 br_spec
= nlmsg_find_attr(nlh
, sizeof(struct ifinfomsg
), IFLA_AF_SPEC
);
4851 nla_for_each_nested(attr
, br_spec
, rem
) {
4852 if (nla_type(attr
) != IFLA_BRIDGE_MODE
)
4855 if (nla_len(attr
) < sizeof(mode
))
4858 mode
= nla_get_u16(attr
);
4859 if (BE3_chip(adapter
) && mode
== BRIDGE_MODE_VEPA
)
4862 if (mode
!= BRIDGE_MODE_VEPA
&& mode
!= BRIDGE_MODE_VEB
)
4865 status
= be_cmd_set_hsw_config(adapter
, 0, 0,
4867 mode
== BRIDGE_MODE_VEPA
?
4868 PORT_FWD_TYPE_VEPA
:
4869 PORT_FWD_TYPE_VEB
, 0);
4873 dev_info(&adapter
->pdev
->dev
, "enabled switch mode: %s\n",
4874 mode
== BRIDGE_MODE_VEPA
? "VEPA" : "VEB");
4879 dev_err(&adapter
->pdev
->dev
, "Failed to set switch mode %s\n",
4880 mode
== BRIDGE_MODE_VEPA
? "VEPA" : "VEB");
4885 static int be_ndo_bridge_getlink(struct sk_buff
*skb
, u32 pid
, u32 seq
,
4886 struct net_device
*dev
, u32 filter_mask
,
4889 struct be_adapter
*adapter
= netdev_priv(dev
);
4893 /* BE and Lancer chips support VEB mode only */
4894 if (BEx_chip(adapter
) || lancer_chip(adapter
)) {
4895 /* VEB is disabled in non-SR-IOV profiles on BE3/Lancer */
4896 if (!pci_sriov_get_totalvfs(adapter
->pdev
))
4898 hsw_mode
= PORT_FWD_TYPE_VEB
;
4900 status
= be_cmd_get_hsw_config(adapter
, NULL
, 0,
4901 adapter
->if_handle
, &hsw_mode
,
4906 if (hsw_mode
== PORT_FWD_TYPE_PASSTHRU
)
4910 return ndo_dflt_bridge_getlink(skb
, pid
, seq
, dev
,
4911 hsw_mode
== PORT_FWD_TYPE_VEPA
?
4912 BRIDGE_MODE_VEPA
: BRIDGE_MODE_VEB
,
4913 0, 0, nlflags
, filter_mask
, NULL
);
4916 static struct be_cmd_work
*be_alloc_work(struct be_adapter
*adapter
,
4917 void (*func
)(struct work_struct
*))
4919 struct be_cmd_work
*work
;
4921 work
= kzalloc(sizeof(*work
), GFP_ATOMIC
);
4923 dev_err(&adapter
->pdev
->dev
,
4924 "be_work memory allocation failed\n");
4928 INIT_WORK(&work
->work
, func
);
4929 work
->adapter
= adapter
;
4933 /* VxLAN offload Notes:
4935 * The stack defines tunnel offload flags (hw_enc_features) for IP and doesn't
4936 * distinguish various types of transports (VxLAN, GRE, NVGRE ..). So, offload
4937 * is expected to work across all types of IP tunnels once exported. Skyhawk
4938 * supports offloads for either VxLAN or NVGRE, exclusively. So we export VxLAN
4939 * offloads in hw_enc_features only when a VxLAN port is added. If other (non
4940 * VxLAN) tunnels are configured while VxLAN offloads are enabled, offloads for
4941 * those other tunnels are unexported on the fly through ndo_features_check().
4943 * Skyhawk supports VxLAN offloads only for one UDP dport. So, if the stack
4944 * adds more than one port, disable offloads and re-enable them again when
4945 * there's only one port left. We maintain a list of ports for this purpose.
4947 static void be_work_add_vxlan_port(struct work_struct
*work
)
4949 struct be_cmd_work
*cmd_work
=
4950 container_of(work
, struct be_cmd_work
, work
);
4951 struct be_adapter
*adapter
= cmd_work
->adapter
;
4952 struct device
*dev
= &adapter
->pdev
->dev
;
4953 __be16 port
= cmd_work
->info
.vxlan_port
;
4954 struct be_vxlan_port
*vxlan_port
;
4957 /* Bump up the alias count if it is an existing port */
4958 list_for_each_entry(vxlan_port
, &adapter
->vxlan_port_list
, list
) {
4959 if (vxlan_port
->port
== port
) {
4960 vxlan_port
->port_aliases
++;
4965 /* Add a new port to our list. We don't need a lock here since port
4966 * add/delete are done only in the context of a single-threaded work
4969 vxlan_port
= kzalloc(sizeof(*vxlan_port
), GFP_KERNEL
);
4973 vxlan_port
->port
= port
;
4974 INIT_LIST_HEAD(&vxlan_port
->list
);
4975 list_add_tail(&vxlan_port
->list
, &adapter
->vxlan_port_list
);
4976 adapter
->vxlan_port_count
++;
4978 if (adapter
->flags
& BE_FLAGS_VXLAN_OFFLOADS
) {
4980 "Only one UDP port supported for VxLAN offloads\n");
4981 dev_info(dev
, "Disabling VxLAN offloads\n");
4985 if (adapter
->vxlan_port_count
> 1)
4988 status
= be_enable_vxlan_offloads(adapter
);
4993 be_disable_vxlan_offloads(adapter
);
4999 static void be_work_del_vxlan_port(struct work_struct
*work
)
5001 struct be_cmd_work
*cmd_work
=
5002 container_of(work
, struct be_cmd_work
, work
);
5003 struct be_adapter
*adapter
= cmd_work
->adapter
;
5004 __be16 port
= cmd_work
->info
.vxlan_port
;
5005 struct be_vxlan_port
*vxlan_port
;
5007 /* Nothing to be done if a port alias is being deleted */
5008 list_for_each_entry(vxlan_port
, &adapter
->vxlan_port_list
, list
) {
5009 if (vxlan_port
->port
== port
) {
5010 if (vxlan_port
->port_aliases
) {
5011 vxlan_port
->port_aliases
--;
5018 /* No port aliases left; delete the port from the list */
5019 list_del(&vxlan_port
->list
);
5020 adapter
->vxlan_port_count
--;
5022 /* Disable VxLAN offload if this is the offloaded port */
5023 if (adapter
->vxlan_port
== vxlan_port
->port
) {
5024 WARN_ON(adapter
->vxlan_port_count
);
5025 be_disable_vxlan_offloads(adapter
);
5026 dev_info(&adapter
->pdev
->dev
,
5027 "Disabled VxLAN offloads for UDP port %d\n",
5032 /* If only 1 port is left, re-enable VxLAN offload */
5033 if (adapter
->vxlan_port_count
== 1)
5034 be_enable_vxlan_offloads(adapter
);
5042 static void be_cfg_vxlan_port(struct net_device
*netdev
,
5043 struct udp_tunnel_info
*ti
,
5044 void (*func
)(struct work_struct
*))
5046 struct be_adapter
*adapter
= netdev_priv(netdev
);
5047 struct be_cmd_work
*cmd_work
;
5049 if (ti
->type
!= UDP_TUNNEL_TYPE_VXLAN
)
5052 if (lancer_chip(adapter
) || BEx_chip(adapter
) || be_is_mc(adapter
))
5055 cmd_work
= be_alloc_work(adapter
, func
);
5057 cmd_work
->info
.vxlan_port
= ti
->port
;
5058 queue_work(be_wq
, &cmd_work
->work
);
5062 static void be_del_vxlan_port(struct net_device
*netdev
,
5063 struct udp_tunnel_info
*ti
)
5065 be_cfg_vxlan_port(netdev
, ti
, be_work_del_vxlan_port
);
5068 static void be_add_vxlan_port(struct net_device
*netdev
,
5069 struct udp_tunnel_info
*ti
)
5071 be_cfg_vxlan_port(netdev
, ti
, be_work_add_vxlan_port
);
5074 static netdev_features_t
be_features_check(struct sk_buff
*skb
,
5075 struct net_device
*dev
,
5076 netdev_features_t features
)
5078 struct be_adapter
*adapter
= netdev_priv(dev
);
5081 /* The code below restricts offload features for some tunneled packets.
5082 * Offload features for normal (non tunnel) packets are unchanged.
5084 if (!skb
->encapsulation
||
5085 !(adapter
->flags
& BE_FLAGS_VXLAN_OFFLOADS
))
5088 /* It's an encapsulated packet and VxLAN offloads are enabled. We
5089 * should disable tunnel offload features if it's not a VxLAN packet,
5090 * as tunnel offloads have been enabled only for VxLAN. This is done to
5091 * allow other tunneled traffic like GRE work fine while VxLAN
5092 * offloads are configured in Skyhawk-R.
5094 switch (vlan_get_protocol(skb
)) {
5095 case htons(ETH_P_IP
):
5096 l4_hdr
= ip_hdr(skb
)->protocol
;
5098 case htons(ETH_P_IPV6
):
5099 l4_hdr
= ipv6_hdr(skb
)->nexthdr
;
5105 if (l4_hdr
!= IPPROTO_UDP
||
5106 skb
->inner_protocol_type
!= ENCAP_TYPE_ETHER
||
5107 skb
->inner_protocol
!= htons(ETH_P_TEB
) ||
5108 skb_inner_mac_header(skb
) - skb_transport_header(skb
) !=
5109 sizeof(struct udphdr
) + sizeof(struct vxlanhdr
) ||
5110 !adapter
->vxlan_port
||
5111 udp_hdr(skb
)->dest
!= adapter
->vxlan_port
)
5112 return features
& ~(NETIF_F_CSUM_MASK
| NETIF_F_GSO_MASK
);
5117 static int be_get_phys_port_id(struct net_device
*dev
,
5118 struct netdev_phys_item_id
*ppid
)
5120 int i
, id_len
= CNTL_SERIAL_NUM_WORDS
* CNTL_SERIAL_NUM_WORD_SZ
+ 1;
5121 struct be_adapter
*adapter
= netdev_priv(dev
);
5124 if (MAX_PHYS_ITEM_ID_LEN
< id_len
)
5127 ppid
->id
[0] = adapter
->hba_port_num
+ 1;
5129 for (i
= CNTL_SERIAL_NUM_WORDS
- 1; i
>= 0;
5130 i
--, id
+= CNTL_SERIAL_NUM_WORD_SZ
)
5131 memcpy(id
, &adapter
->serial_num
[i
], CNTL_SERIAL_NUM_WORD_SZ
);
5133 ppid
->id_len
= id_len
;
5138 static void be_set_rx_mode(struct net_device
*dev
)
5140 struct be_adapter
*adapter
= netdev_priv(dev
);
5141 struct be_cmd_work
*work
;
5143 work
= be_alloc_work(adapter
, be_work_set_rx_mode
);
5145 queue_work(be_wq
, &work
->work
);
5148 static const struct net_device_ops be_netdev_ops
= {
5149 .ndo_open
= be_open
,
5150 .ndo_stop
= be_close
,
5151 .ndo_start_xmit
= be_xmit
,
5152 .ndo_set_rx_mode
= be_set_rx_mode
,
5153 .ndo_set_mac_address
= be_mac_addr_set
,
5154 .ndo_get_stats64
= be_get_stats64
,
5155 .ndo_validate_addr
= eth_validate_addr
,
5156 .ndo_vlan_rx_add_vid
= be_vlan_add_vid
,
5157 .ndo_vlan_rx_kill_vid
= be_vlan_rem_vid
,
5158 .ndo_set_vf_mac
= be_set_vf_mac
,
5159 .ndo_set_vf_vlan
= be_set_vf_vlan
,
5160 .ndo_set_vf_rate
= be_set_vf_tx_rate
,
5161 .ndo_get_vf_config
= be_get_vf_config
,
5162 .ndo_set_vf_link_state
= be_set_vf_link_state
,
5163 .ndo_set_vf_spoofchk
= be_set_vf_spoofchk
,
5164 #ifdef CONFIG_NET_POLL_CONTROLLER
5165 .ndo_poll_controller
= be_netpoll
,
5167 .ndo_bridge_setlink
= be_ndo_bridge_setlink
,
5168 .ndo_bridge_getlink
= be_ndo_bridge_getlink
,
5169 .ndo_udp_tunnel_add
= be_add_vxlan_port
,
5170 .ndo_udp_tunnel_del
= be_del_vxlan_port
,
5171 .ndo_features_check
= be_features_check
,
5172 .ndo_get_phys_port_id
= be_get_phys_port_id
,
5175 static void be_netdev_init(struct net_device
*netdev
)
5177 struct be_adapter
*adapter
= netdev_priv(netdev
);
5179 netdev
->hw_features
|= NETIF_F_SG
| NETIF_F_TSO
| NETIF_F_TSO6
|
5180 NETIF_F_IP_CSUM
| NETIF_F_IPV6_CSUM
| NETIF_F_RXCSUM
|
5181 NETIF_F_HW_VLAN_CTAG_TX
;
5182 if ((be_if_cap_flags(adapter
) & BE_IF_FLAGS_RSS
))
5183 netdev
->hw_features
|= NETIF_F_RXHASH
;
5185 netdev
->features
|= netdev
->hw_features
|
5186 NETIF_F_HW_VLAN_CTAG_RX
| NETIF_F_HW_VLAN_CTAG_FILTER
;
5188 netdev
->vlan_features
|= NETIF_F_SG
| NETIF_F_TSO
| NETIF_F_TSO6
|
5189 NETIF_F_IP_CSUM
| NETIF_F_IPV6_CSUM
;
5191 netdev
->priv_flags
|= IFF_UNICAST_FLT
;
5193 netdev
->flags
|= IFF_MULTICAST
;
5195 netif_set_gso_max_size(netdev
, BE_MAX_GSO_SIZE
- ETH_HLEN
);
5197 netdev
->netdev_ops
= &be_netdev_ops
;
5199 netdev
->ethtool_ops
= &be_ethtool_ops
;
5201 /* MTU range: 256 - 9000 */
5202 netdev
->min_mtu
= BE_MIN_MTU
;
5203 netdev
->max_mtu
= BE_MAX_MTU
;
5206 static void be_cleanup(struct be_adapter
*adapter
)
5208 struct net_device
*netdev
= adapter
->netdev
;
5211 netif_device_detach(netdev
);
5212 if (netif_running(netdev
))
5219 static int be_resume(struct be_adapter
*adapter
)
5221 struct net_device
*netdev
= adapter
->netdev
;
5224 status
= be_setup(adapter
);
5229 if (netif_running(netdev
))
5230 status
= be_open(netdev
);
5236 netif_device_attach(netdev
);
5241 static void be_soft_reset(struct be_adapter
*adapter
)
5245 dev_info(&adapter
->pdev
->dev
, "Initiating chip soft reset\n");
5246 val
= ioread32(adapter
->pcicfg
+ SLIPORT_SOFTRESET_OFFSET
);
5247 val
|= SLIPORT_SOFTRESET_SR_MASK
;
5248 iowrite32(val
, adapter
->pcicfg
+ SLIPORT_SOFTRESET_OFFSET
);
5251 static bool be_err_is_recoverable(struct be_adapter
*adapter
)
5253 struct be_error_recovery
*err_rec
= &adapter
->error_recovery
;
5254 unsigned long initial_idle_time
=
5255 msecs_to_jiffies(ERR_RECOVERY_IDLE_TIME
);
5256 unsigned long recovery_interval
=
5257 msecs_to_jiffies(ERR_RECOVERY_INTERVAL
);
5261 val
= be_POST_stage_get(adapter
);
5262 if ((val
& POST_STAGE_RECOVERABLE_ERR
) != POST_STAGE_RECOVERABLE_ERR
)
5264 ue_err_code
= val
& POST_ERR_RECOVERY_CODE_MASK
;
5265 if (ue_err_code
== 0)
5268 dev_err(&adapter
->pdev
->dev
, "Recoverable HW error code: 0x%x\n",
5271 if (time_before_eq(jiffies
- err_rec
->probe_time
, initial_idle_time
)) {
5272 dev_err(&adapter
->pdev
->dev
,
5273 "Cannot recover within %lu sec from driver load\n",
5274 jiffies_to_msecs(initial_idle_time
) / MSEC_PER_SEC
);
5278 if (err_rec
->last_recovery_time
&& time_before_eq(
5279 jiffies
- err_rec
->last_recovery_time
, recovery_interval
)) {
5280 dev_err(&adapter
->pdev
->dev
,
5281 "Cannot recover within %lu sec from last recovery\n",
5282 jiffies_to_msecs(recovery_interval
) / MSEC_PER_SEC
);
5286 if (ue_err_code
== err_rec
->last_err_code
) {
5287 dev_err(&adapter
->pdev
->dev
,
5288 "Cannot recover from a consecutive TPE error\n");
5292 err_rec
->last_recovery_time
= jiffies
;
5293 err_rec
->last_err_code
= ue_err_code
;
5297 static int be_tpe_recover(struct be_adapter
*adapter
)
5299 struct be_error_recovery
*err_rec
= &adapter
->error_recovery
;
5300 int status
= -EAGAIN
;
5303 switch (err_rec
->recovery_state
) {
5304 case ERR_RECOVERY_ST_NONE
:
5305 err_rec
->recovery_state
= ERR_RECOVERY_ST_DETECT
;
5306 err_rec
->resched_delay
= ERR_RECOVERY_UE_DETECT_DURATION
;
5309 case ERR_RECOVERY_ST_DETECT
:
5310 val
= be_POST_stage_get(adapter
);
5311 if ((val
& POST_STAGE_RECOVERABLE_ERR
) !=
5312 POST_STAGE_RECOVERABLE_ERR
) {
5313 dev_err(&adapter
->pdev
->dev
,
5314 "Unrecoverable HW error detected: 0x%x\n", val
);
5316 err_rec
->resched_delay
= 0;
5320 dev_err(&adapter
->pdev
->dev
, "Recoverable HW error detected\n");
5322 /* Only PF0 initiates Chip Soft Reset. But PF0 must wait UE2SR
5323 * milliseconds before it checks for final error status in
5324 * SLIPORT_SEMAPHORE to determine if recovery criteria is met.
5325 * If it does, then PF0 initiates a Soft Reset.
5327 if (adapter
->pf_num
== 0) {
5328 err_rec
->recovery_state
= ERR_RECOVERY_ST_RESET
;
5329 err_rec
->resched_delay
= err_rec
->ue_to_reset_time
-
5330 ERR_RECOVERY_UE_DETECT_DURATION
;
5334 err_rec
->recovery_state
= ERR_RECOVERY_ST_PRE_POLL
;
5335 err_rec
->resched_delay
= err_rec
->ue_to_poll_time
-
5336 ERR_RECOVERY_UE_DETECT_DURATION
;
5339 case ERR_RECOVERY_ST_RESET
:
5340 if (!be_err_is_recoverable(adapter
)) {
5341 dev_err(&adapter
->pdev
->dev
,
5342 "Failed to meet recovery criteria\n");
5344 err_rec
->resched_delay
= 0;
5347 be_soft_reset(adapter
);
5348 err_rec
->recovery_state
= ERR_RECOVERY_ST_PRE_POLL
;
5349 err_rec
->resched_delay
= err_rec
->ue_to_poll_time
-
5350 err_rec
->ue_to_reset_time
;
5353 case ERR_RECOVERY_ST_PRE_POLL
:
5354 err_rec
->recovery_state
= ERR_RECOVERY_ST_REINIT
;
5355 err_rec
->resched_delay
= 0;
5356 status
= 0; /* done */
5361 err_rec
->resched_delay
= 0;
5368 static int be_err_recover(struct be_adapter
*adapter
)
5372 if (!lancer_chip(adapter
)) {
5373 if (!adapter
->error_recovery
.recovery_supported
||
5374 adapter
->priv_flags
& BE_DISABLE_TPE_RECOVERY
)
5376 status
= be_tpe_recover(adapter
);
5381 /* Wait for adapter to reach quiescent state before
5384 status
= be_fw_wait_ready(adapter
);
5388 adapter
->flags
|= BE_FLAGS_TRY_RECOVERY
;
5390 be_cleanup(adapter
);
5392 status
= be_resume(adapter
);
5396 adapter
->flags
&= ~BE_FLAGS_TRY_RECOVERY
;
5402 static void be_err_detection_task(struct work_struct
*work
)
5404 struct be_error_recovery
*err_rec
=
5405 container_of(work
, struct be_error_recovery
,
5406 err_detection_work
.work
);
5407 struct be_adapter
*adapter
=
5408 container_of(err_rec
, struct be_adapter
,
5410 u32 resched_delay
= ERR_RECOVERY_DETECTION_DELAY
;
5411 struct device
*dev
= &adapter
->pdev
->dev
;
5412 int recovery_status
;
5414 be_detect_error(adapter
);
5415 if (!be_check_error(adapter
, BE_ERROR_HW
))
5416 goto reschedule_task
;
5418 recovery_status
= be_err_recover(adapter
);
5419 if (!recovery_status
) {
5420 err_rec
->recovery_retries
= 0;
5421 err_rec
->recovery_state
= ERR_RECOVERY_ST_NONE
;
5422 dev_info(dev
, "Adapter recovery successful\n");
5423 goto reschedule_task
;
5424 } else if (!lancer_chip(adapter
) && err_rec
->resched_delay
) {
5425 /* BEx/SH recovery state machine */
5426 if (adapter
->pf_num
== 0 &&
5427 err_rec
->recovery_state
> ERR_RECOVERY_ST_DETECT
)
5428 dev_err(&adapter
->pdev
->dev
,
5429 "Adapter recovery in progress\n");
5430 resched_delay
= err_rec
->resched_delay
;
5431 goto reschedule_task
;
5432 } else if (lancer_chip(adapter
) && be_virtfn(adapter
)) {
5433 /* For VFs, check if PF have allocated resources
5436 dev_err(dev
, "Re-trying adapter recovery\n");
5437 goto reschedule_task
;
5438 } else if (lancer_chip(adapter
) && err_rec
->recovery_retries
++ <
5439 ERR_RECOVERY_MAX_RETRY_COUNT
) {
5440 /* In case of another error during recovery, it takes 30 sec
5441 * for adapter to come out of error. Retry error recovery after
5442 * this time interval.
5444 dev_err(&adapter
->pdev
->dev
, "Re-trying adapter recovery\n");
5445 resched_delay
= ERR_RECOVERY_RETRY_DELAY
;
5446 goto reschedule_task
;
5448 dev_err(dev
, "Adapter recovery failed\n");
5449 dev_err(dev
, "Please reboot server to recover\n");
5455 be_schedule_err_detection(adapter
, resched_delay
);
5458 static void be_log_sfp_info(struct be_adapter
*adapter
)
5462 status
= be_cmd_query_sfp_info(adapter
);
5464 dev_err(&adapter
->pdev
->dev
,
5465 "Port %c: %s Vendor: %s part no: %s",
5467 be_misconfig_evt_port_state
[adapter
->phy_state
],
5468 adapter
->phy
.vendor_name
,
5469 adapter
->phy
.vendor_pn
);
5471 adapter
->flags
&= ~BE_FLAGS_PHY_MISCONFIGURED
;
5474 static void be_worker(struct work_struct
*work
)
5476 struct be_adapter
*adapter
=
5477 container_of(work
, struct be_adapter
, work
.work
);
5478 struct be_rx_obj
*rxo
;
5481 if (be_physfn(adapter
) &&
5482 MODULO(adapter
->work_counter
, adapter
->be_get_temp_freq
) == 0)
5483 be_cmd_get_die_temperature(adapter
);
5485 /* when interrupts are not yet enabled, just reap any pending
5488 if (!netif_running(adapter
->netdev
)) {
5490 be_process_mcc(adapter
);
5495 if (!adapter
->stats_cmd_sent
) {
5496 if (lancer_chip(adapter
))
5497 lancer_cmd_get_pport_stats(adapter
,
5498 &adapter
->stats_cmd
);
5500 be_cmd_get_stats(adapter
, &adapter
->stats_cmd
);
5503 for_all_rx_queues(adapter
, rxo
, i
) {
5504 /* Replenish RX-queues starved due to memory
5505 * allocation failures.
5507 if (rxo
->rx_post_starved
)
5508 be_post_rx_frags(rxo
, GFP_KERNEL
, MAX_RX_POST
);
5511 /* EQ-delay update for Skyhawk is done while notifying EQ */
5512 if (!skyhawk_chip(adapter
))
5513 be_eqd_update(adapter
, false);
5515 if (adapter
->flags
& BE_FLAGS_PHY_MISCONFIGURED
)
5516 be_log_sfp_info(adapter
);
5519 adapter
->work_counter
++;
5520 queue_delayed_work(be_wq
, &adapter
->work
, msecs_to_jiffies(1000));
5523 static void be_unmap_pci_bars(struct be_adapter
*adapter
)
5526 pci_iounmap(adapter
->pdev
, adapter
->csr
);
5528 pci_iounmap(adapter
->pdev
, adapter
->db
);
5529 if (adapter
->pcicfg
&& adapter
->pcicfg_mapped
)
5530 pci_iounmap(adapter
->pdev
, adapter
->pcicfg
);
5533 static int db_bar(struct be_adapter
*adapter
)
5535 if (lancer_chip(adapter
) || be_virtfn(adapter
))
5541 static int be_roce_map_pci_bars(struct be_adapter
*adapter
)
5543 if (skyhawk_chip(adapter
)) {
5544 adapter
->roce_db
.size
= 4096;
5545 adapter
->roce_db
.io_addr
= pci_resource_start(adapter
->pdev
,
5547 adapter
->roce_db
.total_size
= pci_resource_len(adapter
->pdev
,
5553 static int be_map_pci_bars(struct be_adapter
*adapter
)
5555 struct pci_dev
*pdev
= adapter
->pdev
;
5559 pci_read_config_dword(adapter
->pdev
, SLI_INTF_REG_OFFSET
, &sli_intf
);
5560 adapter
->sli_family
= (sli_intf
& SLI_INTF_FAMILY_MASK
) >>
5561 SLI_INTF_FAMILY_SHIFT
;
5562 adapter
->virtfn
= (sli_intf
& SLI_INTF_FT_MASK
) ? 1 : 0;
5564 if (BEx_chip(adapter
) && be_physfn(adapter
)) {
5565 adapter
->csr
= pci_iomap(pdev
, 2, 0);
5570 addr
= pci_iomap(pdev
, db_bar(adapter
), 0);
5575 if (skyhawk_chip(adapter
) || BEx_chip(adapter
)) {
5576 if (be_physfn(adapter
)) {
5577 /* PCICFG is the 2nd BAR in BE2 */
5578 addr
= pci_iomap(pdev
, BE2_chip(adapter
) ? 1 : 0, 0);
5581 adapter
->pcicfg
= addr
;
5582 adapter
->pcicfg_mapped
= true;
5584 adapter
->pcicfg
= adapter
->db
+ SRIOV_VF_PCICFG_OFFSET
;
5585 adapter
->pcicfg_mapped
= false;
5589 be_roce_map_pci_bars(adapter
);
5593 dev_err(&pdev
->dev
, "Error in mapping PCI BARs\n");
5594 be_unmap_pci_bars(adapter
);
5598 static void be_drv_cleanup(struct be_adapter
*adapter
)
5600 struct be_dma_mem
*mem
= &adapter
->mbox_mem_alloced
;
5601 struct device
*dev
= &adapter
->pdev
->dev
;
5604 dma_free_coherent(dev
, mem
->size
, mem
->va
, mem
->dma
);
5606 mem
= &adapter
->rx_filter
;
5608 dma_free_coherent(dev
, mem
->size
, mem
->va
, mem
->dma
);
5610 mem
= &adapter
->stats_cmd
;
5612 dma_free_coherent(dev
, mem
->size
, mem
->va
, mem
->dma
);
5615 /* Allocate and initialize various fields in be_adapter struct */
5616 static int be_drv_init(struct be_adapter
*adapter
)
5618 struct be_dma_mem
*mbox_mem_alloc
= &adapter
->mbox_mem_alloced
;
5619 struct be_dma_mem
*mbox_mem_align
= &adapter
->mbox_mem
;
5620 struct be_dma_mem
*rx_filter
= &adapter
->rx_filter
;
5621 struct be_dma_mem
*stats_cmd
= &adapter
->stats_cmd
;
5622 struct device
*dev
= &adapter
->pdev
->dev
;
5625 mbox_mem_alloc
->size
= sizeof(struct be_mcc_mailbox
) + 16;
5626 mbox_mem_alloc
->va
= dma_zalloc_coherent(dev
, mbox_mem_alloc
->size
,
5627 &mbox_mem_alloc
->dma
,
5629 if (!mbox_mem_alloc
->va
)
5632 mbox_mem_align
->size
= sizeof(struct be_mcc_mailbox
);
5633 mbox_mem_align
->va
= PTR_ALIGN(mbox_mem_alloc
->va
, 16);
5634 mbox_mem_align
->dma
= PTR_ALIGN(mbox_mem_alloc
->dma
, 16);
5636 rx_filter
->size
= sizeof(struct be_cmd_req_rx_filter
);
5637 rx_filter
->va
= dma_zalloc_coherent(dev
, rx_filter
->size
,
5638 &rx_filter
->dma
, GFP_KERNEL
);
5639 if (!rx_filter
->va
) {
5644 if (lancer_chip(adapter
))
5645 stats_cmd
->size
= sizeof(struct lancer_cmd_req_pport_stats
);
5646 else if (BE2_chip(adapter
))
5647 stats_cmd
->size
= sizeof(struct be_cmd_req_get_stats_v0
);
5648 else if (BE3_chip(adapter
))
5649 stats_cmd
->size
= sizeof(struct be_cmd_req_get_stats_v1
);
5651 stats_cmd
->size
= sizeof(struct be_cmd_req_get_stats_v2
);
5652 stats_cmd
->va
= dma_zalloc_coherent(dev
, stats_cmd
->size
,
5653 &stats_cmd
->dma
, GFP_KERNEL
);
5654 if (!stats_cmd
->va
) {
5656 goto free_rx_filter
;
5659 mutex_init(&adapter
->mbox_lock
);
5660 mutex_init(&adapter
->mcc_lock
);
5661 mutex_init(&adapter
->rx_filter_lock
);
5662 spin_lock_init(&adapter
->mcc_cq_lock
);
5663 init_completion(&adapter
->et_cmd_compl
);
5665 pci_save_state(adapter
->pdev
);
5667 INIT_DELAYED_WORK(&adapter
->work
, be_worker
);
5669 adapter
->error_recovery
.recovery_state
= ERR_RECOVERY_ST_NONE
;
5670 adapter
->error_recovery
.resched_delay
= 0;
5671 INIT_DELAYED_WORK(&adapter
->error_recovery
.err_detection_work
,
5672 be_err_detection_task
);
5674 adapter
->rx_fc
= true;
5675 adapter
->tx_fc
= true;
5677 /* Must be a power of 2 or else MODULO will BUG_ON */
5678 adapter
->be_get_temp_freq
= 64;
5680 INIT_LIST_HEAD(&adapter
->vxlan_port_list
);
5684 dma_free_coherent(dev
, rx_filter
->size
, rx_filter
->va
, rx_filter
->dma
);
5686 dma_free_coherent(dev
, mbox_mem_alloc
->size
, mbox_mem_alloc
->va
,
5687 mbox_mem_alloc
->dma
);
5691 static void be_remove(struct pci_dev
*pdev
)
5693 struct be_adapter
*adapter
= pci_get_drvdata(pdev
);
5698 be_roce_dev_remove(adapter
);
5699 be_intr_set(adapter
, false);
5701 be_cancel_err_detection(adapter
);
5703 unregister_netdev(adapter
->netdev
);
5707 if (!pci_vfs_assigned(adapter
->pdev
))
5708 be_cmd_reset_function(adapter
);
5710 /* tell fw we're done with firing cmds */
5711 be_cmd_fw_clean(adapter
);
5713 be_unmap_pci_bars(adapter
);
5714 be_drv_cleanup(adapter
);
5716 pci_disable_pcie_error_reporting(pdev
);
5718 pci_release_regions(pdev
);
5719 pci_disable_device(pdev
);
5721 free_netdev(adapter
->netdev
);
5724 static ssize_t
be_hwmon_show_temp(struct device
*dev
,
5725 struct device_attribute
*dev_attr
,
5728 struct be_adapter
*adapter
= dev_get_drvdata(dev
);
5730 /* Unit: millidegree Celsius */
5731 if (adapter
->hwmon_info
.be_on_die_temp
== BE_INVALID_DIE_TEMP
)
5734 return sprintf(buf
, "%u\n",
5735 adapter
->hwmon_info
.be_on_die_temp
* 1000);
5738 static SENSOR_DEVICE_ATTR(temp1_input
, S_IRUGO
,
5739 be_hwmon_show_temp
, NULL
, 1);
5741 static struct attribute
*be_hwmon_attrs
[] = {
5742 &sensor_dev_attr_temp1_input
.dev_attr
.attr
,
5746 ATTRIBUTE_GROUPS(be_hwmon
);
5748 static char *mc_name(struct be_adapter
*adapter
)
5750 char *str
= ""; /* default */
5752 switch (adapter
->mc_type
) {
5778 static inline char *func_name(struct be_adapter
*adapter
)
5780 return be_physfn(adapter
) ? "PF" : "VF";
5783 static inline char *nic_name(struct pci_dev
*pdev
)
5785 switch (pdev
->device
) {
5792 return OC_NAME_LANCER
;
5803 static int be_probe(struct pci_dev
*pdev
, const struct pci_device_id
*pdev_id
)
5805 struct be_adapter
*adapter
;
5806 struct net_device
*netdev
;
5809 dev_info(&pdev
->dev
, "%s version is %s\n", DRV_NAME
, DRV_VER
);
5811 status
= pci_enable_device(pdev
);
5815 status
= pci_request_regions(pdev
, DRV_NAME
);
5818 pci_set_master(pdev
);
5820 netdev
= alloc_etherdev_mqs(sizeof(*adapter
), MAX_TX_QS
, MAX_RX_QS
);
5825 adapter
= netdev_priv(netdev
);
5826 adapter
->pdev
= pdev
;
5827 pci_set_drvdata(pdev
, adapter
);
5828 adapter
->netdev
= netdev
;
5829 SET_NETDEV_DEV(netdev
, &pdev
->dev
);
5831 status
= dma_set_mask_and_coherent(&pdev
->dev
, DMA_BIT_MASK(64));
5833 netdev
->features
|= NETIF_F_HIGHDMA
;
5835 status
= dma_set_mask_and_coherent(&pdev
->dev
, DMA_BIT_MASK(32));
5837 dev_err(&pdev
->dev
, "Could not set PCI DMA Mask\n");
5842 status
= pci_enable_pcie_error_reporting(pdev
);
5844 dev_info(&pdev
->dev
, "PCIe error reporting enabled\n");
5846 status
= be_map_pci_bars(adapter
);
5850 status
= be_drv_init(adapter
);
5854 status
= be_setup(adapter
);
5858 be_netdev_init(netdev
);
5859 status
= register_netdev(netdev
);
5863 be_roce_dev_add(adapter
);
5865 be_schedule_err_detection(adapter
, ERR_DETECTION_DELAY
);
5866 adapter
->error_recovery
.probe_time
= jiffies
;
5868 /* On Die temperature not supported for VF. */
5869 if (be_physfn(adapter
) && IS_ENABLED(CONFIG_BE2NET_HWMON
)) {
5870 adapter
->hwmon_info
.hwmon_dev
=
5871 devm_hwmon_device_register_with_groups(&pdev
->dev
,
5875 adapter
->hwmon_info
.be_on_die_temp
= BE_INVALID_DIE_TEMP
;
5878 dev_info(&pdev
->dev
, "%s: %s %s port %c\n", nic_name(pdev
),
5879 func_name(adapter
), mc_name(adapter
), adapter
->port_name
);
5886 be_drv_cleanup(adapter
);
5888 be_unmap_pci_bars(adapter
);
5890 free_netdev(netdev
);
5892 pci_release_regions(pdev
);
5894 pci_disable_device(pdev
);
5896 dev_err(&pdev
->dev
, "%s initialization failed\n", nic_name(pdev
));
5900 static int be_suspend(struct pci_dev
*pdev
, pm_message_t state
)
5902 struct be_adapter
*adapter
= pci_get_drvdata(pdev
);
5904 be_intr_set(adapter
, false);
5905 be_cancel_err_detection(adapter
);
5907 be_cleanup(adapter
);
5909 pci_save_state(pdev
);
5910 pci_disable_device(pdev
);
5911 pci_set_power_state(pdev
, pci_choose_state(pdev
, state
));
5915 static int be_pci_resume(struct pci_dev
*pdev
)
5917 struct be_adapter
*adapter
= pci_get_drvdata(pdev
);
5920 status
= pci_enable_device(pdev
);
5924 pci_restore_state(pdev
);
5926 status
= be_resume(adapter
);
5930 be_schedule_err_detection(adapter
, ERR_DETECTION_DELAY
);
5936 * An FLR will stop BE from DMAing any data.
5938 static void be_shutdown(struct pci_dev
*pdev
)
5940 struct be_adapter
*adapter
= pci_get_drvdata(pdev
);
5945 be_roce_dev_shutdown(adapter
);
5946 cancel_delayed_work_sync(&adapter
->work
);
5947 be_cancel_err_detection(adapter
);
5949 netif_device_detach(adapter
->netdev
);
5951 be_cmd_reset_function(adapter
);
5953 pci_disable_device(pdev
);
5956 static pci_ers_result_t
be_eeh_err_detected(struct pci_dev
*pdev
,
5957 pci_channel_state_t state
)
5959 struct be_adapter
*adapter
= pci_get_drvdata(pdev
);
5961 dev_err(&adapter
->pdev
->dev
, "EEH error detected\n");
5963 be_roce_dev_remove(adapter
);
5965 if (!be_check_error(adapter
, BE_ERROR_EEH
)) {
5966 be_set_error(adapter
, BE_ERROR_EEH
);
5968 be_cancel_err_detection(adapter
);
5970 be_cleanup(adapter
);
5973 if (state
== pci_channel_io_perm_failure
)
5974 return PCI_ERS_RESULT_DISCONNECT
;
5976 pci_disable_device(pdev
);
5978 /* The error could cause the FW to trigger a flash debug dump.
5979 * Resetting the card while flash dump is in progress
5980 * can cause it not to recover; wait for it to finish.
5981 * Wait only for first function as it is needed only once per
5984 if (pdev
->devfn
== 0)
5987 return PCI_ERS_RESULT_NEED_RESET
;
5990 static pci_ers_result_t
be_eeh_reset(struct pci_dev
*pdev
)
5992 struct be_adapter
*adapter
= pci_get_drvdata(pdev
);
5995 dev_info(&adapter
->pdev
->dev
, "EEH reset\n");
5997 status
= pci_enable_device(pdev
);
5999 return PCI_ERS_RESULT_DISCONNECT
;
6001 pci_set_master(pdev
);
6002 pci_restore_state(pdev
);
6004 /* Check if card is ok and fw is ready */
6005 dev_info(&adapter
->pdev
->dev
,
6006 "Waiting for FW to be ready after EEH reset\n");
6007 status
= be_fw_wait_ready(adapter
);
6009 return PCI_ERS_RESULT_DISCONNECT
;
6011 pci_cleanup_aer_uncorrect_error_status(pdev
);
6012 be_clear_error(adapter
, BE_CLEAR_ALL
);
6013 return PCI_ERS_RESULT_RECOVERED
;
6016 static void be_eeh_resume(struct pci_dev
*pdev
)
6019 struct be_adapter
*adapter
= pci_get_drvdata(pdev
);
6021 dev_info(&adapter
->pdev
->dev
, "EEH resume\n");
6023 pci_save_state(pdev
);
6025 status
= be_resume(adapter
);
6029 be_roce_dev_add(adapter
);
6031 be_schedule_err_detection(adapter
, ERR_DETECTION_DELAY
);
6034 dev_err(&adapter
->pdev
->dev
, "EEH resume failed\n");
6037 static int be_pci_sriov_configure(struct pci_dev
*pdev
, int num_vfs
)
6039 struct be_adapter
*adapter
= pci_get_drvdata(pdev
);
6040 struct be_resources vft_res
= {0};
6044 be_vf_clear(adapter
);
6046 adapter
->num_vfs
= num_vfs
;
6048 if (adapter
->num_vfs
== 0 && pci_vfs_assigned(pdev
)) {
6049 dev_warn(&pdev
->dev
,
6050 "Cannot disable VFs while they are assigned\n");
6054 /* When the HW is in SRIOV capable configuration, the PF-pool resources
6055 * are equally distributed across the max-number of VFs. The user may
6056 * request only a subset of the max-vfs to be enabled.
6057 * Based on num_vfs, redistribute the resources across num_vfs so that
6058 * each VF will have access to more number of resources.
6059 * This facility is not available in BE3 FW.
6060 * Also, this is done by FW in Lancer chip.
6062 if (skyhawk_chip(adapter
) && !pci_num_vf(pdev
)) {
6063 be_calculate_vf_res(adapter
, adapter
->num_vfs
,
6065 status
= be_cmd_set_sriov_config(adapter
, adapter
->pool_res
,
6066 adapter
->num_vfs
, &vft_res
);
6069 "Failed to optimize SR-IOV resources\n");
6072 status
= be_get_resources(adapter
);
6074 return be_cmd_status(status
);
6076 /* Updating real_num_tx/rx_queues() requires rtnl_lock() */
6078 status
= be_update_queues(adapter
);
6081 return be_cmd_status(status
);
6083 if (adapter
->num_vfs
)
6084 status
= be_vf_setup(adapter
);
6087 return adapter
->num_vfs
;
6092 static const struct pci_error_handlers be_eeh_handlers
= {
6093 .error_detected
= be_eeh_err_detected
,
6094 .slot_reset
= be_eeh_reset
,
6095 .resume
= be_eeh_resume
,
6098 static struct pci_driver be_driver
= {
6100 .id_table
= be_dev_ids
,
6102 .remove
= be_remove
,
6103 .suspend
= be_suspend
,
6104 .resume
= be_pci_resume
,
6105 .shutdown
= be_shutdown
,
6106 .sriov_configure
= be_pci_sriov_configure
,
6107 .err_handler
= &be_eeh_handlers
6110 static int __init
be_init_module(void)
6114 if (rx_frag_size
!= 8192 && rx_frag_size
!= 4096 &&
6115 rx_frag_size
!= 2048) {
6116 printk(KERN_WARNING DRV_NAME
6117 " : Module param rx_frag_size must be 2048/4096/8192."
6119 rx_frag_size
= 2048;
6123 pr_info(DRV_NAME
" : Module param num_vfs is obsolete.");
6124 pr_info(DRV_NAME
" : Use sysfs method to enable VFs\n");
6127 be_wq
= create_singlethread_workqueue("be_wq");
6129 pr_warn(DRV_NAME
"workqueue creation failed\n");
6133 be_err_recovery_workq
=
6134 create_singlethread_workqueue("be_err_recover");
6135 if (!be_err_recovery_workq
)
6136 pr_warn(DRV_NAME
"Could not create error recovery workqueue\n");
6138 status
= pci_register_driver(&be_driver
);
6140 destroy_workqueue(be_wq
);
6141 be_destroy_err_recovery_workq();
6145 module_init(be_init_module
);
6147 static void __exit
be_exit_module(void)
6149 pci_unregister_driver(&be_driver
);
6151 be_destroy_err_recovery_workq();
6154 destroy_workqueue(be_wq
);
6156 module_exit(be_exit_module
);