1 /*******************************************************************************
3 * Intel Ethernet Controller XL710 Family Linux Driver
4 * Copyright(c) 2013 - 2015 Intel Corporation.
6 * This program is free software; you can redistribute it and/or modify it
7 * under the terms and conditions of the GNU General Public License,
8 * version 2, as published by the Free Software Foundation.
10 * This program is distributed in the hope it will be useful, but WITHOUT
11 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
12 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
15 * You should have received a copy of the GNU General Public License along
16 * with this program. If not, see <http://www.gnu.org/licenses/>.
18 * The full GNU General Public License is included in this distribution in
19 * the file called "COPYING".
21 * Contact Information:
22 * e1000-devel Mailing List <e1000-devel@lists.sourceforge.net>
23 * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
25 ******************************************************************************/
29 #include "i40e_diag.h"
30 #ifdef CONFIG_I40E_VXLAN
31 #include <net/vxlan.h>
34 const char i40e_driver_name
[] = "i40e";
35 static const char i40e_driver_string
[] =
36 "Intel(R) Ethernet Connection XL710 Network Driver";
40 #define DRV_VERSION_MAJOR 1
41 #define DRV_VERSION_MINOR 3
42 #define DRV_VERSION_BUILD 2
43 #define DRV_VERSION __stringify(DRV_VERSION_MAJOR) "." \
44 __stringify(DRV_VERSION_MINOR) "." \
45 __stringify(DRV_VERSION_BUILD) DRV_KERN
46 const char i40e_driver_version_str
[] = DRV_VERSION
;
47 static const char i40e_copyright
[] = "Copyright (c) 2013 - 2014 Intel Corporation.";
49 /* a bit of forward declarations */
50 static void i40e_vsi_reinit_locked(struct i40e_vsi
*vsi
);
51 static void i40e_handle_reset_warning(struct i40e_pf
*pf
);
52 static int i40e_add_vsi(struct i40e_vsi
*vsi
);
53 static int i40e_add_veb(struct i40e_veb
*veb
, struct i40e_vsi
*vsi
);
54 static int i40e_setup_pf_switch(struct i40e_pf
*pf
, bool reinit
);
55 static int i40e_setup_misc_vector(struct i40e_pf
*pf
);
56 static void i40e_determine_queue_usage(struct i40e_pf
*pf
);
57 static int i40e_setup_pf_filter_control(struct i40e_pf
*pf
);
58 static void i40e_fdir_sb_setup(struct i40e_pf
*pf
);
59 static int i40e_veb_get_bw_info(struct i40e_veb
*veb
);
61 /* i40e_pci_tbl - PCI Device ID Table
63 * Last entry must be all 0s
65 * { Vendor ID, Device ID, SubVendor ID, SubDevice ID,
66 * Class, Class Mask, private data (not used) }
68 static const struct pci_device_id i40e_pci_tbl
[] = {
69 {PCI_VDEVICE(INTEL
, I40E_DEV_ID_SFP_XL710
), 0},
70 {PCI_VDEVICE(INTEL
, I40E_DEV_ID_QEMU
), 0},
71 {PCI_VDEVICE(INTEL
, I40E_DEV_ID_KX_A
), 0},
72 {PCI_VDEVICE(INTEL
, I40E_DEV_ID_KX_B
), 0},
73 {PCI_VDEVICE(INTEL
, I40E_DEV_ID_KX_C
), 0},
74 {PCI_VDEVICE(INTEL
, I40E_DEV_ID_QSFP_A
), 0},
75 {PCI_VDEVICE(INTEL
, I40E_DEV_ID_QSFP_B
), 0},
76 {PCI_VDEVICE(INTEL
, I40E_DEV_ID_QSFP_C
), 0},
77 {PCI_VDEVICE(INTEL
, I40E_DEV_ID_10G_BASE_T
), 0},
78 {PCI_VDEVICE(INTEL
, I40E_DEV_ID_20G_KR2
), 0},
79 /* required last entry */
82 MODULE_DEVICE_TABLE(pci
, i40e_pci_tbl
);
84 #define I40E_MAX_VF_COUNT 128
85 static int debug
= -1;
86 module_param(debug
, int, 0);
87 MODULE_PARM_DESC(debug
, "Debug level (0=none,...,16=all)");
89 MODULE_AUTHOR("Intel Corporation, <e1000-devel@lists.sourceforge.net>");
90 MODULE_DESCRIPTION("Intel(R) Ethernet Connection XL710 Network Driver");
91 MODULE_LICENSE("GPL");
92 MODULE_VERSION(DRV_VERSION
);
95 * i40e_allocate_dma_mem_d - OS specific memory alloc for shared code
96 * @hw: pointer to the HW structure
97 * @mem: ptr to mem struct to fill out
98 * @size: size of memory requested
99 * @alignment: what to align the allocation to
101 int i40e_allocate_dma_mem_d(struct i40e_hw
*hw
, struct i40e_dma_mem
*mem
,
102 u64 size
, u32 alignment
)
104 struct i40e_pf
*pf
= (struct i40e_pf
*)hw
->back
;
106 mem
->size
= ALIGN(size
, alignment
);
107 mem
->va
= dma_zalloc_coherent(&pf
->pdev
->dev
, mem
->size
,
108 &mem
->pa
, GFP_KERNEL
);
116 * i40e_free_dma_mem_d - OS specific memory free for shared code
117 * @hw: pointer to the HW structure
118 * @mem: ptr to mem struct to free
120 int i40e_free_dma_mem_d(struct i40e_hw
*hw
, struct i40e_dma_mem
*mem
)
122 struct i40e_pf
*pf
= (struct i40e_pf
*)hw
->back
;
124 dma_free_coherent(&pf
->pdev
->dev
, mem
->size
, mem
->va
, mem
->pa
);
133 * i40e_allocate_virt_mem_d - OS specific memory alloc for shared code
134 * @hw: pointer to the HW structure
135 * @mem: ptr to mem struct to fill out
136 * @size: size of memory requested
138 int i40e_allocate_virt_mem_d(struct i40e_hw
*hw
, struct i40e_virt_mem
*mem
,
142 mem
->va
= kzalloc(size
, GFP_KERNEL
);
151 * i40e_free_virt_mem_d - OS specific memory free for shared code
152 * @hw: pointer to the HW structure
153 * @mem: ptr to mem struct to free
155 int i40e_free_virt_mem_d(struct i40e_hw
*hw
, struct i40e_virt_mem
*mem
)
157 /* it's ok to kfree a NULL pointer */
166 * i40e_get_lump - find a lump of free generic resource
167 * @pf: board private structure
168 * @pile: the pile of resource to search
169 * @needed: the number of items needed
170 * @id: an owner id to stick on the items assigned
172 * Returns the base item index of the lump, or negative for error
174 * The search_hint trick and lack of advanced fit-finding only work
175 * because we're highly likely to have all the same size lump requests.
176 * Linear search time and any fragmentation should be minimal.
178 static int i40e_get_lump(struct i40e_pf
*pf
, struct i40e_lump_tracking
*pile
,
184 if (!pile
|| needed
== 0 || id
>= I40E_PILE_VALID_BIT
) {
185 dev_info(&pf
->pdev
->dev
,
186 "param err: pile=%p needed=%d id=0x%04x\n",
191 /* start the linear search with an imperfect hint */
192 i
= pile
->search_hint
;
193 while (i
< pile
->num_entries
) {
194 /* skip already allocated entries */
195 if (pile
->list
[i
] & I40E_PILE_VALID_BIT
) {
200 /* do we have enough in this lump? */
201 for (j
= 0; (j
< needed
) && ((i
+j
) < pile
->num_entries
); j
++) {
202 if (pile
->list
[i
+j
] & I40E_PILE_VALID_BIT
)
207 /* there was enough, so assign it to the requestor */
208 for (j
= 0; j
< needed
; j
++)
209 pile
->list
[i
+j
] = id
| I40E_PILE_VALID_BIT
;
211 pile
->search_hint
= i
+ j
;
214 /* not enough, so skip over it and continue looking */
223 * i40e_put_lump - return a lump of generic resource
224 * @pile: the pile of resource to search
225 * @index: the base item index
226 * @id: the owner id of the items assigned
228 * Returns the count of items in the lump
230 static int i40e_put_lump(struct i40e_lump_tracking
*pile
, u16 index
, u16 id
)
232 int valid_id
= (id
| I40E_PILE_VALID_BIT
);
236 if (!pile
|| index
>= pile
->num_entries
)
240 i
< pile
->num_entries
&& pile
->list
[i
] == valid_id
;
246 if (count
&& index
< pile
->search_hint
)
247 pile
->search_hint
= index
;
253 * i40e_find_vsi_from_id - searches for the vsi with the given id
254 * @pf - the pf structure to search for the vsi
255 * @id - id of the vsi it is searching for
257 struct i40e_vsi
*i40e_find_vsi_from_id(struct i40e_pf
*pf
, u16 id
)
261 for (i
= 0; i
< pf
->num_alloc_vsi
; i
++)
262 if (pf
->vsi
[i
] && (pf
->vsi
[i
]->id
== id
))
269 * i40e_service_event_schedule - Schedule the service task to wake up
270 * @pf: board private structure
272 * If not already scheduled, this puts the task into the work queue
274 static void i40e_service_event_schedule(struct i40e_pf
*pf
)
276 if (!test_bit(__I40E_DOWN
, &pf
->state
) &&
277 !test_bit(__I40E_RESET_RECOVERY_PENDING
, &pf
->state
) &&
278 !test_and_set_bit(__I40E_SERVICE_SCHED
, &pf
->state
))
279 schedule_work(&pf
->service_task
);
283 * i40e_tx_timeout - Respond to a Tx Hang
284 * @netdev: network interface device structure
286 * If any port has noticed a Tx timeout, it is likely that the whole
287 * device is munged, not just the one netdev port, so go for the full
291 void i40e_tx_timeout(struct net_device
*netdev
)
293 static void i40e_tx_timeout(struct net_device
*netdev
)
296 struct i40e_netdev_priv
*np
= netdev_priv(netdev
);
297 struct i40e_vsi
*vsi
= np
->vsi
;
298 struct i40e_pf
*pf
= vsi
->back
;
300 pf
->tx_timeout_count
++;
302 if (time_after(jiffies
, (pf
->tx_timeout_last_recovery
+ HZ
*20)))
303 pf
->tx_timeout_recovery_level
= 1;
304 pf
->tx_timeout_last_recovery
= jiffies
;
305 netdev_info(netdev
, "tx_timeout recovery level %d\n",
306 pf
->tx_timeout_recovery_level
);
308 switch (pf
->tx_timeout_recovery_level
) {
310 /* disable and re-enable queues for the VSI */
311 if (in_interrupt()) {
312 set_bit(__I40E_REINIT_REQUESTED
, &pf
->state
);
313 set_bit(__I40E_REINIT_REQUESTED
, &vsi
->state
);
315 i40e_vsi_reinit_locked(vsi
);
319 set_bit(__I40E_PF_RESET_REQUESTED
, &pf
->state
);
322 set_bit(__I40E_CORE_RESET_REQUESTED
, &pf
->state
);
325 set_bit(__I40E_GLOBAL_RESET_REQUESTED
, &pf
->state
);
328 netdev_err(netdev
, "tx_timeout recovery unsuccessful\n");
329 set_bit(__I40E_DOWN_REQUESTED
, &pf
->state
);
330 set_bit(__I40E_DOWN_REQUESTED
, &vsi
->state
);
333 i40e_service_event_schedule(pf
);
334 pf
->tx_timeout_recovery_level
++;
338 * i40e_release_rx_desc - Store the new tail and head values
339 * @rx_ring: ring to bump
340 * @val: new head index
342 static inline void i40e_release_rx_desc(struct i40e_ring
*rx_ring
, u32 val
)
344 rx_ring
->next_to_use
= val
;
346 /* Force memory writes to complete before letting h/w
347 * know there are new descriptors to fetch. (Only
348 * applicable for weak-ordered memory model archs,
352 writel(val
, rx_ring
->tail
);
356 * i40e_get_vsi_stats_struct - Get System Network Statistics
357 * @vsi: the VSI we care about
359 * Returns the address of the device statistics structure.
360 * The statistics are actually updated from the service task.
362 struct rtnl_link_stats64
*i40e_get_vsi_stats_struct(struct i40e_vsi
*vsi
)
364 return &vsi
->net_stats
;
368 * i40e_get_netdev_stats_struct - Get statistics for netdev interface
369 * @netdev: network interface device structure
371 * Returns the address of the device statistics structure.
372 * The statistics are actually updated from the service task.
375 struct rtnl_link_stats64
*i40e_get_netdev_stats_struct(
376 struct net_device
*netdev
,
377 struct rtnl_link_stats64
*stats
)
379 static struct rtnl_link_stats64
*i40e_get_netdev_stats_struct(
380 struct net_device
*netdev
,
381 struct rtnl_link_stats64
*stats
)
384 struct i40e_netdev_priv
*np
= netdev_priv(netdev
);
385 struct i40e_ring
*tx_ring
, *rx_ring
;
386 struct i40e_vsi
*vsi
= np
->vsi
;
387 struct rtnl_link_stats64
*vsi_stats
= i40e_get_vsi_stats_struct(vsi
);
390 if (test_bit(__I40E_DOWN
, &vsi
->state
))
397 for (i
= 0; i
< vsi
->num_queue_pairs
; i
++) {
401 tx_ring
= ACCESS_ONCE(vsi
->tx_rings
[i
]);
406 start
= u64_stats_fetch_begin_irq(&tx_ring
->syncp
);
407 packets
= tx_ring
->stats
.packets
;
408 bytes
= tx_ring
->stats
.bytes
;
409 } while (u64_stats_fetch_retry_irq(&tx_ring
->syncp
, start
));
411 stats
->tx_packets
+= packets
;
412 stats
->tx_bytes
+= bytes
;
413 rx_ring
= &tx_ring
[1];
416 start
= u64_stats_fetch_begin_irq(&rx_ring
->syncp
);
417 packets
= rx_ring
->stats
.packets
;
418 bytes
= rx_ring
->stats
.bytes
;
419 } while (u64_stats_fetch_retry_irq(&rx_ring
->syncp
, start
));
421 stats
->rx_packets
+= packets
;
422 stats
->rx_bytes
+= bytes
;
426 /* following stats updated by i40e_watchdog_subtask() */
427 stats
->multicast
= vsi_stats
->multicast
;
428 stats
->tx_errors
= vsi_stats
->tx_errors
;
429 stats
->tx_dropped
= vsi_stats
->tx_dropped
;
430 stats
->rx_errors
= vsi_stats
->rx_errors
;
431 stats
->rx_crc_errors
= vsi_stats
->rx_crc_errors
;
432 stats
->rx_length_errors
= vsi_stats
->rx_length_errors
;
438 * i40e_vsi_reset_stats - Resets all stats of the given vsi
439 * @vsi: the VSI to have its stats reset
441 void i40e_vsi_reset_stats(struct i40e_vsi
*vsi
)
443 struct rtnl_link_stats64
*ns
;
449 ns
= i40e_get_vsi_stats_struct(vsi
);
450 memset(ns
, 0, sizeof(*ns
));
451 memset(&vsi
->net_stats_offsets
, 0, sizeof(vsi
->net_stats_offsets
));
452 memset(&vsi
->eth_stats
, 0, sizeof(vsi
->eth_stats
));
453 memset(&vsi
->eth_stats_offsets
, 0, sizeof(vsi
->eth_stats_offsets
));
454 if (vsi
->rx_rings
&& vsi
->rx_rings
[0]) {
455 for (i
= 0; i
< vsi
->num_queue_pairs
; i
++) {
456 memset(&vsi
->rx_rings
[i
]->stats
, 0 ,
457 sizeof(vsi
->rx_rings
[i
]->stats
));
458 memset(&vsi
->rx_rings
[i
]->rx_stats
, 0 ,
459 sizeof(vsi
->rx_rings
[i
]->rx_stats
));
460 memset(&vsi
->tx_rings
[i
]->stats
, 0 ,
461 sizeof(vsi
->tx_rings
[i
]->stats
));
462 memset(&vsi
->tx_rings
[i
]->tx_stats
, 0,
463 sizeof(vsi
->tx_rings
[i
]->tx_stats
));
466 vsi
->stat_offsets_loaded
= false;
470 * i40e_pf_reset_stats - Reset all of the stats for the given PF
471 * @pf: the PF to be reset
473 void i40e_pf_reset_stats(struct i40e_pf
*pf
)
477 memset(&pf
->stats
, 0, sizeof(pf
->stats
));
478 memset(&pf
->stats_offsets
, 0, sizeof(pf
->stats_offsets
));
479 pf
->stat_offsets_loaded
= false;
481 for (i
= 0; i
< I40E_MAX_VEB
; i
++) {
483 memset(&pf
->veb
[i
]->stats
, 0,
484 sizeof(pf
->veb
[i
]->stats
));
485 memset(&pf
->veb
[i
]->stats_offsets
, 0,
486 sizeof(pf
->veb
[i
]->stats_offsets
));
487 pf
->veb
[i
]->stat_offsets_loaded
= false;
493 * i40e_stat_update48 - read and update a 48 bit stat from the chip
494 * @hw: ptr to the hardware info
495 * @hireg: the high 32 bit reg to read
496 * @loreg: the low 32 bit reg to read
497 * @offset_loaded: has the initial offset been loaded yet
498 * @offset: ptr to current offset value
499 * @stat: ptr to the stat
501 * Since the device stats are not reset at PFReset, they likely will not
502 * be zeroed when the driver starts. We'll save the first values read
503 * and use them as offsets to be subtracted from the raw values in order
504 * to report stats that count from zero. In the process, we also manage
505 * the potential roll-over.
507 static void i40e_stat_update48(struct i40e_hw
*hw
, u32 hireg
, u32 loreg
,
508 bool offset_loaded
, u64
*offset
, u64
*stat
)
512 if (hw
->device_id
== I40E_DEV_ID_QEMU
) {
513 new_data
= rd32(hw
, loreg
);
514 new_data
|= ((u64
)(rd32(hw
, hireg
) & 0xFFFF)) << 32;
516 new_data
= rd64(hw
, loreg
);
520 if (likely(new_data
>= *offset
))
521 *stat
= new_data
- *offset
;
523 *stat
= (new_data
+ ((u64
)1 << 48)) - *offset
;
524 *stat
&= 0xFFFFFFFFFFFFULL
;
528 * i40e_stat_update32 - read and update a 32 bit stat from the chip
529 * @hw: ptr to the hardware info
530 * @reg: the hw reg to read
531 * @offset_loaded: has the initial offset been loaded yet
532 * @offset: ptr to current offset value
533 * @stat: ptr to the stat
535 static void i40e_stat_update32(struct i40e_hw
*hw
, u32 reg
,
536 bool offset_loaded
, u64
*offset
, u64
*stat
)
540 new_data
= rd32(hw
, reg
);
543 if (likely(new_data
>= *offset
))
544 *stat
= (u32
)(new_data
- *offset
);
546 *stat
= (u32
)((new_data
+ ((u64
)1 << 32)) - *offset
);
550 * i40e_update_eth_stats - Update VSI-specific ethernet statistics counters.
551 * @vsi: the VSI to be updated
553 void i40e_update_eth_stats(struct i40e_vsi
*vsi
)
555 int stat_idx
= le16_to_cpu(vsi
->info
.stat_counter_idx
);
556 struct i40e_pf
*pf
= vsi
->back
;
557 struct i40e_hw
*hw
= &pf
->hw
;
558 struct i40e_eth_stats
*oes
;
559 struct i40e_eth_stats
*es
; /* device's eth stats */
561 es
= &vsi
->eth_stats
;
562 oes
= &vsi
->eth_stats_offsets
;
564 /* Gather up the stats that the hw collects */
565 i40e_stat_update32(hw
, I40E_GLV_TEPC(stat_idx
),
566 vsi
->stat_offsets_loaded
,
567 &oes
->tx_errors
, &es
->tx_errors
);
568 i40e_stat_update32(hw
, I40E_GLV_RDPC(stat_idx
),
569 vsi
->stat_offsets_loaded
,
570 &oes
->rx_discards
, &es
->rx_discards
);
571 i40e_stat_update32(hw
, I40E_GLV_RUPP(stat_idx
),
572 vsi
->stat_offsets_loaded
,
573 &oes
->rx_unknown_protocol
, &es
->rx_unknown_protocol
);
574 i40e_stat_update32(hw
, I40E_GLV_TEPC(stat_idx
),
575 vsi
->stat_offsets_loaded
,
576 &oes
->tx_errors
, &es
->tx_errors
);
578 i40e_stat_update48(hw
, I40E_GLV_GORCH(stat_idx
),
579 I40E_GLV_GORCL(stat_idx
),
580 vsi
->stat_offsets_loaded
,
581 &oes
->rx_bytes
, &es
->rx_bytes
);
582 i40e_stat_update48(hw
, I40E_GLV_UPRCH(stat_idx
),
583 I40E_GLV_UPRCL(stat_idx
),
584 vsi
->stat_offsets_loaded
,
585 &oes
->rx_unicast
, &es
->rx_unicast
);
586 i40e_stat_update48(hw
, I40E_GLV_MPRCH(stat_idx
),
587 I40E_GLV_MPRCL(stat_idx
),
588 vsi
->stat_offsets_loaded
,
589 &oes
->rx_multicast
, &es
->rx_multicast
);
590 i40e_stat_update48(hw
, I40E_GLV_BPRCH(stat_idx
),
591 I40E_GLV_BPRCL(stat_idx
),
592 vsi
->stat_offsets_loaded
,
593 &oes
->rx_broadcast
, &es
->rx_broadcast
);
595 i40e_stat_update48(hw
, I40E_GLV_GOTCH(stat_idx
),
596 I40E_GLV_GOTCL(stat_idx
),
597 vsi
->stat_offsets_loaded
,
598 &oes
->tx_bytes
, &es
->tx_bytes
);
599 i40e_stat_update48(hw
, I40E_GLV_UPTCH(stat_idx
),
600 I40E_GLV_UPTCL(stat_idx
),
601 vsi
->stat_offsets_loaded
,
602 &oes
->tx_unicast
, &es
->tx_unicast
);
603 i40e_stat_update48(hw
, I40E_GLV_MPTCH(stat_idx
),
604 I40E_GLV_MPTCL(stat_idx
),
605 vsi
->stat_offsets_loaded
,
606 &oes
->tx_multicast
, &es
->tx_multicast
);
607 i40e_stat_update48(hw
, I40E_GLV_BPTCH(stat_idx
),
608 I40E_GLV_BPTCL(stat_idx
),
609 vsi
->stat_offsets_loaded
,
610 &oes
->tx_broadcast
, &es
->tx_broadcast
);
611 vsi
->stat_offsets_loaded
= true;
615 * i40e_update_veb_stats - Update Switch component statistics
616 * @veb: the VEB being updated
618 static void i40e_update_veb_stats(struct i40e_veb
*veb
)
620 struct i40e_pf
*pf
= veb
->pf
;
621 struct i40e_hw
*hw
= &pf
->hw
;
622 struct i40e_eth_stats
*oes
;
623 struct i40e_eth_stats
*es
; /* device's eth stats */
626 idx
= veb
->stats_idx
;
628 oes
= &veb
->stats_offsets
;
630 /* Gather up the stats that the hw collects */
631 i40e_stat_update32(hw
, I40E_GLSW_TDPC(idx
),
632 veb
->stat_offsets_loaded
,
633 &oes
->tx_discards
, &es
->tx_discards
);
634 if (hw
->revision_id
> 0)
635 i40e_stat_update32(hw
, I40E_GLSW_RUPP(idx
),
636 veb
->stat_offsets_loaded
,
637 &oes
->rx_unknown_protocol
,
638 &es
->rx_unknown_protocol
);
639 i40e_stat_update48(hw
, I40E_GLSW_GORCH(idx
), I40E_GLSW_GORCL(idx
),
640 veb
->stat_offsets_loaded
,
641 &oes
->rx_bytes
, &es
->rx_bytes
);
642 i40e_stat_update48(hw
, I40E_GLSW_UPRCH(idx
), I40E_GLSW_UPRCL(idx
),
643 veb
->stat_offsets_loaded
,
644 &oes
->rx_unicast
, &es
->rx_unicast
);
645 i40e_stat_update48(hw
, I40E_GLSW_MPRCH(idx
), I40E_GLSW_MPRCL(idx
),
646 veb
->stat_offsets_loaded
,
647 &oes
->rx_multicast
, &es
->rx_multicast
);
648 i40e_stat_update48(hw
, I40E_GLSW_BPRCH(idx
), I40E_GLSW_BPRCL(idx
),
649 veb
->stat_offsets_loaded
,
650 &oes
->rx_broadcast
, &es
->rx_broadcast
);
652 i40e_stat_update48(hw
, I40E_GLSW_GOTCH(idx
), I40E_GLSW_GOTCL(idx
),
653 veb
->stat_offsets_loaded
,
654 &oes
->tx_bytes
, &es
->tx_bytes
);
655 i40e_stat_update48(hw
, I40E_GLSW_UPTCH(idx
), I40E_GLSW_UPTCL(idx
),
656 veb
->stat_offsets_loaded
,
657 &oes
->tx_unicast
, &es
->tx_unicast
);
658 i40e_stat_update48(hw
, I40E_GLSW_MPTCH(idx
), I40E_GLSW_MPTCL(idx
),
659 veb
->stat_offsets_loaded
,
660 &oes
->tx_multicast
, &es
->tx_multicast
);
661 i40e_stat_update48(hw
, I40E_GLSW_BPTCH(idx
), I40E_GLSW_BPTCL(idx
),
662 veb
->stat_offsets_loaded
,
663 &oes
->tx_broadcast
, &es
->tx_broadcast
);
664 veb
->stat_offsets_loaded
= true;
669 * i40e_update_fcoe_stats - Update FCoE-specific ethernet statistics counters.
670 * @vsi: the VSI that is capable of doing FCoE
672 static void i40e_update_fcoe_stats(struct i40e_vsi
*vsi
)
674 struct i40e_pf
*pf
= vsi
->back
;
675 struct i40e_hw
*hw
= &pf
->hw
;
676 struct i40e_fcoe_stats
*ofs
;
677 struct i40e_fcoe_stats
*fs
; /* device's eth stats */
680 if (vsi
->type
!= I40E_VSI_FCOE
)
683 idx
= (pf
->pf_seid
- I40E_BASE_PF_SEID
) + I40E_FCOE_PF_STAT_OFFSET
;
684 fs
= &vsi
->fcoe_stats
;
685 ofs
= &vsi
->fcoe_stats_offsets
;
687 i40e_stat_update32(hw
, I40E_GL_FCOEPRC(idx
),
688 vsi
->fcoe_stat_offsets_loaded
,
689 &ofs
->rx_fcoe_packets
, &fs
->rx_fcoe_packets
);
690 i40e_stat_update48(hw
, I40E_GL_FCOEDWRCH(idx
), I40E_GL_FCOEDWRCL(idx
),
691 vsi
->fcoe_stat_offsets_loaded
,
692 &ofs
->rx_fcoe_dwords
, &fs
->rx_fcoe_dwords
);
693 i40e_stat_update32(hw
, I40E_GL_FCOERPDC(idx
),
694 vsi
->fcoe_stat_offsets_loaded
,
695 &ofs
->rx_fcoe_dropped
, &fs
->rx_fcoe_dropped
);
696 i40e_stat_update32(hw
, I40E_GL_FCOEPTC(idx
),
697 vsi
->fcoe_stat_offsets_loaded
,
698 &ofs
->tx_fcoe_packets
, &fs
->tx_fcoe_packets
);
699 i40e_stat_update48(hw
, I40E_GL_FCOEDWTCH(idx
), I40E_GL_FCOEDWTCL(idx
),
700 vsi
->fcoe_stat_offsets_loaded
,
701 &ofs
->tx_fcoe_dwords
, &fs
->tx_fcoe_dwords
);
702 i40e_stat_update32(hw
, I40E_GL_FCOECRC(idx
),
703 vsi
->fcoe_stat_offsets_loaded
,
704 &ofs
->fcoe_bad_fccrc
, &fs
->fcoe_bad_fccrc
);
705 i40e_stat_update32(hw
, I40E_GL_FCOELAST(idx
),
706 vsi
->fcoe_stat_offsets_loaded
,
707 &ofs
->fcoe_last_error
, &fs
->fcoe_last_error
);
708 i40e_stat_update32(hw
, I40E_GL_FCOEDDPC(idx
),
709 vsi
->fcoe_stat_offsets_loaded
,
710 &ofs
->fcoe_ddp_count
, &fs
->fcoe_ddp_count
);
712 vsi
->fcoe_stat_offsets_loaded
= true;
717 * i40e_update_link_xoff_rx - Update XOFF received in link flow control mode
718 * @pf: the corresponding PF
720 * Update the Rx XOFF counter (PAUSE frames) in link flow control mode
722 static void i40e_update_link_xoff_rx(struct i40e_pf
*pf
)
724 struct i40e_hw_port_stats
*osd
= &pf
->stats_offsets
;
725 struct i40e_hw_port_stats
*nsd
= &pf
->stats
;
726 struct i40e_hw
*hw
= &pf
->hw
;
730 if ((hw
->fc
.current_mode
!= I40E_FC_FULL
) &&
731 (hw
->fc
.current_mode
!= I40E_FC_RX_PAUSE
))
734 xoff
= nsd
->link_xoff_rx
;
735 i40e_stat_update32(hw
, I40E_GLPRT_LXOFFRXC(hw
->port
),
736 pf
->stat_offsets_loaded
,
737 &osd
->link_xoff_rx
, &nsd
->link_xoff_rx
);
739 /* No new LFC xoff rx */
740 if (!(nsd
->link_xoff_rx
- xoff
))
743 /* Clear the __I40E_HANG_CHECK_ARMED bit for all Tx rings */
744 for (v
= 0; v
< pf
->num_alloc_vsi
; v
++) {
745 struct i40e_vsi
*vsi
= pf
->vsi
[v
];
747 if (!vsi
|| !vsi
->tx_rings
[0])
750 for (i
= 0; i
< vsi
->num_queue_pairs
; i
++) {
751 struct i40e_ring
*ring
= vsi
->tx_rings
[i
];
752 clear_bit(__I40E_HANG_CHECK_ARMED
, &ring
->state
);
758 * i40e_update_prio_xoff_rx - Update XOFF received in PFC mode
759 * @pf: the corresponding PF
761 * Update the Rx XOFF counter (PAUSE frames) in PFC mode
763 static void i40e_update_prio_xoff_rx(struct i40e_pf
*pf
)
765 struct i40e_hw_port_stats
*osd
= &pf
->stats_offsets
;
766 struct i40e_hw_port_stats
*nsd
= &pf
->stats
;
767 bool xoff
[I40E_MAX_TRAFFIC_CLASS
] = {false};
768 struct i40e_dcbx_config
*dcb_cfg
;
769 struct i40e_hw
*hw
= &pf
->hw
;
773 dcb_cfg
= &hw
->local_dcbx_config
;
775 /* See if DCB enabled with PFC TC */
776 if (!(pf
->flags
& I40E_FLAG_DCB_ENABLED
) ||
777 !(dcb_cfg
->pfc
.pfcenable
)) {
778 i40e_update_link_xoff_rx(pf
);
782 for (i
= 0; i
< I40E_MAX_USER_PRIORITY
; i
++) {
783 u64 prio_xoff
= nsd
->priority_xoff_rx
[i
];
784 i40e_stat_update32(hw
, I40E_GLPRT_PXOFFRXC(hw
->port
, i
),
785 pf
->stat_offsets_loaded
,
786 &osd
->priority_xoff_rx
[i
],
787 &nsd
->priority_xoff_rx
[i
]);
789 /* No new PFC xoff rx */
790 if (!(nsd
->priority_xoff_rx
[i
] - prio_xoff
))
792 /* Get the TC for given priority */
793 tc
= dcb_cfg
->etscfg
.prioritytable
[i
];
797 /* Clear the __I40E_HANG_CHECK_ARMED bit for Tx rings */
798 for (v
= 0; v
< pf
->num_alloc_vsi
; v
++) {
799 struct i40e_vsi
*vsi
= pf
->vsi
[v
];
801 if (!vsi
|| !vsi
->tx_rings
[0])
804 for (i
= 0; i
< vsi
->num_queue_pairs
; i
++) {
805 struct i40e_ring
*ring
= vsi
->tx_rings
[i
];
809 clear_bit(__I40E_HANG_CHECK_ARMED
,
816 * i40e_update_vsi_stats - Update the vsi statistics counters.
817 * @vsi: the VSI to be updated
819 * There are a few instances where we store the same stat in a
820 * couple of different structs. This is partly because we have
821 * the netdev stats that need to be filled out, which is slightly
822 * different from the "eth_stats" defined by the chip and used in
823 * VF communications. We sort it out here.
825 static void i40e_update_vsi_stats(struct i40e_vsi
*vsi
)
827 struct i40e_pf
*pf
= vsi
->back
;
828 struct rtnl_link_stats64
*ons
;
829 struct rtnl_link_stats64
*ns
; /* netdev stats */
830 struct i40e_eth_stats
*oes
;
831 struct i40e_eth_stats
*es
; /* device's eth stats */
832 u32 tx_restart
, tx_busy
;
841 if (test_bit(__I40E_DOWN
, &vsi
->state
) ||
842 test_bit(__I40E_CONFIG_BUSY
, &pf
->state
))
845 ns
= i40e_get_vsi_stats_struct(vsi
);
846 ons
= &vsi
->net_stats_offsets
;
847 es
= &vsi
->eth_stats
;
848 oes
= &vsi
->eth_stats_offsets
;
850 /* Gather up the netdev and vsi stats that the driver collects
851 * on the fly during packet processing
855 tx_restart
= tx_busy
= 0;
859 for (q
= 0; q
< vsi
->num_queue_pairs
; q
++) {
861 p
= ACCESS_ONCE(vsi
->tx_rings
[q
]);
864 start
= u64_stats_fetch_begin_irq(&p
->syncp
);
865 packets
= p
->stats
.packets
;
866 bytes
= p
->stats
.bytes
;
867 } while (u64_stats_fetch_retry_irq(&p
->syncp
, start
));
870 tx_restart
+= p
->tx_stats
.restart_queue
;
871 tx_busy
+= p
->tx_stats
.tx_busy
;
873 /* Rx queue is part of the same block as Tx queue */
876 start
= u64_stats_fetch_begin_irq(&p
->syncp
);
877 packets
= p
->stats
.packets
;
878 bytes
= p
->stats
.bytes
;
879 } while (u64_stats_fetch_retry_irq(&p
->syncp
, start
));
882 rx_buf
+= p
->rx_stats
.alloc_buff_failed
;
883 rx_page
+= p
->rx_stats
.alloc_page_failed
;
886 vsi
->tx_restart
= tx_restart
;
887 vsi
->tx_busy
= tx_busy
;
888 vsi
->rx_page_failed
= rx_page
;
889 vsi
->rx_buf_failed
= rx_buf
;
891 ns
->rx_packets
= rx_p
;
893 ns
->tx_packets
= tx_p
;
896 /* update netdev stats from eth stats */
897 i40e_update_eth_stats(vsi
);
898 ons
->tx_errors
= oes
->tx_errors
;
899 ns
->tx_errors
= es
->tx_errors
;
900 ons
->multicast
= oes
->rx_multicast
;
901 ns
->multicast
= es
->rx_multicast
;
902 ons
->rx_dropped
= oes
->rx_discards
;
903 ns
->rx_dropped
= es
->rx_discards
;
904 ons
->tx_dropped
= oes
->tx_discards
;
905 ns
->tx_dropped
= es
->tx_discards
;
907 /* pull in a couple PF stats if this is the main vsi */
908 if (vsi
== pf
->vsi
[pf
->lan_vsi
]) {
909 ns
->rx_crc_errors
= pf
->stats
.crc_errors
;
910 ns
->rx_errors
= pf
->stats
.crc_errors
+ pf
->stats
.illegal_bytes
;
911 ns
->rx_length_errors
= pf
->stats
.rx_length_errors
;
916 * i40e_update_pf_stats - Update the PF statistics counters.
917 * @pf: the PF to be updated
919 static void i40e_update_pf_stats(struct i40e_pf
*pf
)
921 struct i40e_hw_port_stats
*osd
= &pf
->stats_offsets
;
922 struct i40e_hw_port_stats
*nsd
= &pf
->stats
;
923 struct i40e_hw
*hw
= &pf
->hw
;
927 i40e_stat_update48(hw
, I40E_GLPRT_GORCH(hw
->port
),
928 I40E_GLPRT_GORCL(hw
->port
),
929 pf
->stat_offsets_loaded
,
930 &osd
->eth
.rx_bytes
, &nsd
->eth
.rx_bytes
);
931 i40e_stat_update48(hw
, I40E_GLPRT_GOTCH(hw
->port
),
932 I40E_GLPRT_GOTCL(hw
->port
),
933 pf
->stat_offsets_loaded
,
934 &osd
->eth
.tx_bytes
, &nsd
->eth
.tx_bytes
);
935 i40e_stat_update32(hw
, I40E_GLPRT_RDPC(hw
->port
),
936 pf
->stat_offsets_loaded
,
937 &osd
->eth
.rx_discards
,
938 &nsd
->eth
.rx_discards
);
939 i40e_stat_update48(hw
, I40E_GLPRT_UPRCH(hw
->port
),
940 I40E_GLPRT_UPRCL(hw
->port
),
941 pf
->stat_offsets_loaded
,
942 &osd
->eth
.rx_unicast
,
943 &nsd
->eth
.rx_unicast
);
944 i40e_stat_update48(hw
, I40E_GLPRT_MPRCH(hw
->port
),
945 I40E_GLPRT_MPRCL(hw
->port
),
946 pf
->stat_offsets_loaded
,
947 &osd
->eth
.rx_multicast
,
948 &nsd
->eth
.rx_multicast
);
949 i40e_stat_update48(hw
, I40E_GLPRT_BPRCH(hw
->port
),
950 I40E_GLPRT_BPRCL(hw
->port
),
951 pf
->stat_offsets_loaded
,
952 &osd
->eth
.rx_broadcast
,
953 &nsd
->eth
.rx_broadcast
);
954 i40e_stat_update48(hw
, I40E_GLPRT_UPTCH(hw
->port
),
955 I40E_GLPRT_UPTCL(hw
->port
),
956 pf
->stat_offsets_loaded
,
957 &osd
->eth
.tx_unicast
,
958 &nsd
->eth
.tx_unicast
);
959 i40e_stat_update48(hw
, I40E_GLPRT_MPTCH(hw
->port
),
960 I40E_GLPRT_MPTCL(hw
->port
),
961 pf
->stat_offsets_loaded
,
962 &osd
->eth
.tx_multicast
,
963 &nsd
->eth
.tx_multicast
);
964 i40e_stat_update48(hw
, I40E_GLPRT_BPTCH(hw
->port
),
965 I40E_GLPRT_BPTCL(hw
->port
),
966 pf
->stat_offsets_loaded
,
967 &osd
->eth
.tx_broadcast
,
968 &nsd
->eth
.tx_broadcast
);
970 i40e_stat_update32(hw
, I40E_GLPRT_TDOLD(hw
->port
),
971 pf
->stat_offsets_loaded
,
972 &osd
->tx_dropped_link_down
,
973 &nsd
->tx_dropped_link_down
);
975 i40e_stat_update32(hw
, I40E_GLPRT_CRCERRS(hw
->port
),
976 pf
->stat_offsets_loaded
,
977 &osd
->crc_errors
, &nsd
->crc_errors
);
979 i40e_stat_update32(hw
, I40E_GLPRT_ILLERRC(hw
->port
),
980 pf
->stat_offsets_loaded
,
981 &osd
->illegal_bytes
, &nsd
->illegal_bytes
);
983 i40e_stat_update32(hw
, I40E_GLPRT_MLFC(hw
->port
),
984 pf
->stat_offsets_loaded
,
985 &osd
->mac_local_faults
,
986 &nsd
->mac_local_faults
);
987 i40e_stat_update32(hw
, I40E_GLPRT_MRFC(hw
->port
),
988 pf
->stat_offsets_loaded
,
989 &osd
->mac_remote_faults
,
990 &nsd
->mac_remote_faults
);
992 i40e_stat_update32(hw
, I40E_GLPRT_RLEC(hw
->port
),
993 pf
->stat_offsets_loaded
,
994 &osd
->rx_length_errors
,
995 &nsd
->rx_length_errors
);
997 i40e_stat_update32(hw
, I40E_GLPRT_LXONRXC(hw
->port
),
998 pf
->stat_offsets_loaded
,
999 &osd
->link_xon_rx
, &nsd
->link_xon_rx
);
1000 i40e_stat_update32(hw
, I40E_GLPRT_LXONTXC(hw
->port
),
1001 pf
->stat_offsets_loaded
,
1002 &osd
->link_xon_tx
, &nsd
->link_xon_tx
);
1003 i40e_update_prio_xoff_rx(pf
); /* handles I40E_GLPRT_LXOFFRXC */
1004 i40e_stat_update32(hw
, I40E_GLPRT_LXOFFTXC(hw
->port
),
1005 pf
->stat_offsets_loaded
,
1006 &osd
->link_xoff_tx
, &nsd
->link_xoff_tx
);
1008 for (i
= 0; i
< 8; i
++) {
1009 i40e_stat_update32(hw
, I40E_GLPRT_PXONRXC(hw
->port
, i
),
1010 pf
->stat_offsets_loaded
,
1011 &osd
->priority_xon_rx
[i
],
1012 &nsd
->priority_xon_rx
[i
]);
1013 i40e_stat_update32(hw
, I40E_GLPRT_PXONTXC(hw
->port
, i
),
1014 pf
->stat_offsets_loaded
,
1015 &osd
->priority_xon_tx
[i
],
1016 &nsd
->priority_xon_tx
[i
]);
1017 i40e_stat_update32(hw
, I40E_GLPRT_PXOFFTXC(hw
->port
, i
),
1018 pf
->stat_offsets_loaded
,
1019 &osd
->priority_xoff_tx
[i
],
1020 &nsd
->priority_xoff_tx
[i
]);
1021 i40e_stat_update32(hw
,
1022 I40E_GLPRT_RXON2OFFCNT(hw
->port
, i
),
1023 pf
->stat_offsets_loaded
,
1024 &osd
->priority_xon_2_xoff
[i
],
1025 &nsd
->priority_xon_2_xoff
[i
]);
1028 i40e_stat_update48(hw
, I40E_GLPRT_PRC64H(hw
->port
),
1029 I40E_GLPRT_PRC64L(hw
->port
),
1030 pf
->stat_offsets_loaded
,
1031 &osd
->rx_size_64
, &nsd
->rx_size_64
);
1032 i40e_stat_update48(hw
, I40E_GLPRT_PRC127H(hw
->port
),
1033 I40E_GLPRT_PRC127L(hw
->port
),
1034 pf
->stat_offsets_loaded
,
1035 &osd
->rx_size_127
, &nsd
->rx_size_127
);
1036 i40e_stat_update48(hw
, I40E_GLPRT_PRC255H(hw
->port
),
1037 I40E_GLPRT_PRC255L(hw
->port
),
1038 pf
->stat_offsets_loaded
,
1039 &osd
->rx_size_255
, &nsd
->rx_size_255
);
1040 i40e_stat_update48(hw
, I40E_GLPRT_PRC511H(hw
->port
),
1041 I40E_GLPRT_PRC511L(hw
->port
),
1042 pf
->stat_offsets_loaded
,
1043 &osd
->rx_size_511
, &nsd
->rx_size_511
);
1044 i40e_stat_update48(hw
, I40E_GLPRT_PRC1023H(hw
->port
),
1045 I40E_GLPRT_PRC1023L(hw
->port
),
1046 pf
->stat_offsets_loaded
,
1047 &osd
->rx_size_1023
, &nsd
->rx_size_1023
);
1048 i40e_stat_update48(hw
, I40E_GLPRT_PRC1522H(hw
->port
),
1049 I40E_GLPRT_PRC1522L(hw
->port
),
1050 pf
->stat_offsets_loaded
,
1051 &osd
->rx_size_1522
, &nsd
->rx_size_1522
);
1052 i40e_stat_update48(hw
, I40E_GLPRT_PRC9522H(hw
->port
),
1053 I40E_GLPRT_PRC9522L(hw
->port
),
1054 pf
->stat_offsets_loaded
,
1055 &osd
->rx_size_big
, &nsd
->rx_size_big
);
1057 i40e_stat_update48(hw
, I40E_GLPRT_PTC64H(hw
->port
),
1058 I40E_GLPRT_PTC64L(hw
->port
),
1059 pf
->stat_offsets_loaded
,
1060 &osd
->tx_size_64
, &nsd
->tx_size_64
);
1061 i40e_stat_update48(hw
, I40E_GLPRT_PTC127H(hw
->port
),
1062 I40E_GLPRT_PTC127L(hw
->port
),
1063 pf
->stat_offsets_loaded
,
1064 &osd
->tx_size_127
, &nsd
->tx_size_127
);
1065 i40e_stat_update48(hw
, I40E_GLPRT_PTC255H(hw
->port
),
1066 I40E_GLPRT_PTC255L(hw
->port
),
1067 pf
->stat_offsets_loaded
,
1068 &osd
->tx_size_255
, &nsd
->tx_size_255
);
1069 i40e_stat_update48(hw
, I40E_GLPRT_PTC511H(hw
->port
),
1070 I40E_GLPRT_PTC511L(hw
->port
),
1071 pf
->stat_offsets_loaded
,
1072 &osd
->tx_size_511
, &nsd
->tx_size_511
);
1073 i40e_stat_update48(hw
, I40E_GLPRT_PTC1023H(hw
->port
),
1074 I40E_GLPRT_PTC1023L(hw
->port
),
1075 pf
->stat_offsets_loaded
,
1076 &osd
->tx_size_1023
, &nsd
->tx_size_1023
);
1077 i40e_stat_update48(hw
, I40E_GLPRT_PTC1522H(hw
->port
),
1078 I40E_GLPRT_PTC1522L(hw
->port
),
1079 pf
->stat_offsets_loaded
,
1080 &osd
->tx_size_1522
, &nsd
->tx_size_1522
);
1081 i40e_stat_update48(hw
, I40E_GLPRT_PTC9522H(hw
->port
),
1082 I40E_GLPRT_PTC9522L(hw
->port
),
1083 pf
->stat_offsets_loaded
,
1084 &osd
->tx_size_big
, &nsd
->tx_size_big
);
1086 i40e_stat_update32(hw
, I40E_GLPRT_RUC(hw
->port
),
1087 pf
->stat_offsets_loaded
,
1088 &osd
->rx_undersize
, &nsd
->rx_undersize
);
1089 i40e_stat_update32(hw
, I40E_GLPRT_RFC(hw
->port
),
1090 pf
->stat_offsets_loaded
,
1091 &osd
->rx_fragments
, &nsd
->rx_fragments
);
1092 i40e_stat_update32(hw
, I40E_GLPRT_ROC(hw
->port
),
1093 pf
->stat_offsets_loaded
,
1094 &osd
->rx_oversize
, &nsd
->rx_oversize
);
1095 i40e_stat_update32(hw
, I40E_GLPRT_RJC(hw
->port
),
1096 pf
->stat_offsets_loaded
,
1097 &osd
->rx_jabber
, &nsd
->rx_jabber
);
1100 i40e_stat_update32(hw
, I40E_GLQF_PCNT(pf
->fd_atr_cnt_idx
),
1101 pf
->stat_offsets_loaded
,
1102 &osd
->fd_atr_match
, &nsd
->fd_atr_match
);
1103 i40e_stat_update32(hw
, I40E_GLQF_PCNT(pf
->fd_sb_cnt_idx
),
1104 pf
->stat_offsets_loaded
,
1105 &osd
->fd_sb_match
, &nsd
->fd_sb_match
);
1107 val
= rd32(hw
, I40E_PRTPM_EEE_STAT
);
1108 nsd
->tx_lpi_status
=
1109 (val
& I40E_PRTPM_EEE_STAT_TX_LPI_STATUS_MASK
) >>
1110 I40E_PRTPM_EEE_STAT_TX_LPI_STATUS_SHIFT
;
1111 nsd
->rx_lpi_status
=
1112 (val
& I40E_PRTPM_EEE_STAT_RX_LPI_STATUS_MASK
) >>
1113 I40E_PRTPM_EEE_STAT_RX_LPI_STATUS_SHIFT
;
1114 i40e_stat_update32(hw
, I40E_PRTPM_TLPIC
,
1115 pf
->stat_offsets_loaded
,
1116 &osd
->tx_lpi_count
, &nsd
->tx_lpi_count
);
1117 i40e_stat_update32(hw
, I40E_PRTPM_RLPIC
,
1118 pf
->stat_offsets_loaded
,
1119 &osd
->rx_lpi_count
, &nsd
->rx_lpi_count
);
1121 pf
->stat_offsets_loaded
= true;
1125 * i40e_update_stats - Update the various statistics counters.
1126 * @vsi: the VSI to be updated
1128 * Update the various stats for this VSI and its related entities.
1130 void i40e_update_stats(struct i40e_vsi
*vsi
)
1132 struct i40e_pf
*pf
= vsi
->back
;
1134 if (vsi
== pf
->vsi
[pf
->lan_vsi
])
1135 i40e_update_pf_stats(pf
);
1137 i40e_update_vsi_stats(vsi
);
1139 i40e_update_fcoe_stats(vsi
);
1144 * i40e_find_filter - Search VSI filter list for specific mac/vlan filter
1145 * @vsi: the VSI to be searched
1146 * @macaddr: the MAC address
1148 * @is_vf: make sure its a VF filter, else doesn't matter
1149 * @is_netdev: make sure its a netdev filter, else doesn't matter
1151 * Returns ptr to the filter object or NULL
1153 static struct i40e_mac_filter
*i40e_find_filter(struct i40e_vsi
*vsi
,
1154 u8
*macaddr
, s16 vlan
,
1155 bool is_vf
, bool is_netdev
)
1157 struct i40e_mac_filter
*f
;
1159 if (!vsi
|| !macaddr
)
1162 list_for_each_entry(f
, &vsi
->mac_filter_list
, list
) {
1163 if ((ether_addr_equal(macaddr
, f
->macaddr
)) &&
1164 (vlan
== f
->vlan
) &&
1165 (!is_vf
|| f
->is_vf
) &&
1166 (!is_netdev
|| f
->is_netdev
))
1173 * i40e_find_mac - Find a mac addr in the macvlan filters list
1174 * @vsi: the VSI to be searched
1175 * @macaddr: the MAC address we are searching for
1176 * @is_vf: make sure its a VF filter, else doesn't matter
1177 * @is_netdev: make sure its a netdev filter, else doesn't matter
1179 * Returns the first filter with the provided MAC address or NULL if
1180 * MAC address was not found
1182 struct i40e_mac_filter
*i40e_find_mac(struct i40e_vsi
*vsi
, u8
*macaddr
,
1183 bool is_vf
, bool is_netdev
)
1185 struct i40e_mac_filter
*f
;
1187 if (!vsi
|| !macaddr
)
1190 list_for_each_entry(f
, &vsi
->mac_filter_list
, list
) {
1191 if ((ether_addr_equal(macaddr
, f
->macaddr
)) &&
1192 (!is_vf
|| f
->is_vf
) &&
1193 (!is_netdev
|| f
->is_netdev
))
1200 * i40e_is_vsi_in_vlan - Check if VSI is in vlan mode
1201 * @vsi: the VSI to be searched
1203 * Returns true if VSI is in vlan mode or false otherwise
1205 bool i40e_is_vsi_in_vlan(struct i40e_vsi
*vsi
)
1207 struct i40e_mac_filter
*f
;
1209 /* Only -1 for all the filters denotes not in vlan mode
1210 * so we have to go through all the list in order to make sure
1212 list_for_each_entry(f
, &vsi
->mac_filter_list
, list
) {
1221 * i40e_put_mac_in_vlan - Make macvlan filters from macaddrs and vlans
1222 * @vsi: the VSI to be searched
1223 * @macaddr: the mac address to be filtered
1224 * @is_vf: true if it is a VF
1225 * @is_netdev: true if it is a netdev
1227 * Goes through all the macvlan filters and adds a
1228 * macvlan filter for each unique vlan that already exists
1230 * Returns first filter found on success, else NULL
1232 struct i40e_mac_filter
*i40e_put_mac_in_vlan(struct i40e_vsi
*vsi
, u8
*macaddr
,
1233 bool is_vf
, bool is_netdev
)
1235 struct i40e_mac_filter
*f
;
1237 list_for_each_entry(f
, &vsi
->mac_filter_list
, list
) {
1238 if (!i40e_find_filter(vsi
, macaddr
, f
->vlan
,
1239 is_vf
, is_netdev
)) {
1240 if (!i40e_add_filter(vsi
, macaddr
, f
->vlan
,
1246 return list_first_entry_or_null(&vsi
->mac_filter_list
,
1247 struct i40e_mac_filter
, list
);
1251 * i40e_rm_default_mac_filter - Remove the default MAC filter set by NVM
1252 * @vsi: the PF Main VSI - inappropriate for any other VSI
1253 * @macaddr: the MAC address
1255 * Some older firmware configurations set up a default promiscuous VLAN
1256 * filter that needs to be removed.
1258 static int i40e_rm_default_mac_filter(struct i40e_vsi
*vsi
, u8
*macaddr
)
1260 struct i40e_aqc_remove_macvlan_element_data element
;
1261 struct i40e_pf
*pf
= vsi
->back
;
1264 /* Only appropriate for the PF main VSI */
1265 if (vsi
->type
!= I40E_VSI_MAIN
)
1268 memset(&element
, 0, sizeof(element
));
1269 ether_addr_copy(element
.mac_addr
, macaddr
);
1270 element
.vlan_tag
= 0;
1271 element
.flags
= I40E_AQC_MACVLAN_DEL_PERFECT_MATCH
|
1272 I40E_AQC_MACVLAN_DEL_IGNORE_VLAN
;
1273 aq_ret
= i40e_aq_remove_macvlan(&pf
->hw
, vsi
->seid
, &element
, 1, NULL
);
1281 * i40e_add_filter - Add a mac/vlan filter to the VSI
1282 * @vsi: the VSI to be searched
1283 * @macaddr: the MAC address
1285 * @is_vf: make sure its a VF filter, else doesn't matter
1286 * @is_netdev: make sure its a netdev filter, else doesn't matter
1288 * Returns ptr to the filter object or NULL when no memory available.
1290 struct i40e_mac_filter
*i40e_add_filter(struct i40e_vsi
*vsi
,
1291 u8
*macaddr
, s16 vlan
,
1292 bool is_vf
, bool is_netdev
)
1294 struct i40e_mac_filter
*f
;
1296 if (!vsi
|| !macaddr
)
1299 f
= i40e_find_filter(vsi
, macaddr
, vlan
, is_vf
, is_netdev
);
1301 f
= kzalloc(sizeof(*f
), GFP_ATOMIC
);
1303 goto add_filter_out
;
1305 ether_addr_copy(f
->macaddr
, macaddr
);
1309 INIT_LIST_HEAD(&f
->list
);
1310 list_add(&f
->list
, &vsi
->mac_filter_list
);
1313 /* increment counter and add a new flag if needed */
1319 } else if (is_netdev
) {
1320 if (!f
->is_netdev
) {
1321 f
->is_netdev
= true;
1328 /* changed tells sync_filters_subtask to
1329 * push the filter down to the firmware
1332 vsi
->flags
|= I40E_VSI_FLAG_FILTER_CHANGED
;
1333 vsi
->back
->flags
|= I40E_FLAG_FILTER_SYNC
;
1341 * i40e_del_filter - Remove a mac/vlan filter from the VSI
1342 * @vsi: the VSI to be searched
1343 * @macaddr: the MAC address
1345 * @is_vf: make sure it's a VF filter, else doesn't matter
1346 * @is_netdev: make sure it's a netdev filter, else doesn't matter
1348 void i40e_del_filter(struct i40e_vsi
*vsi
,
1349 u8
*macaddr
, s16 vlan
,
1350 bool is_vf
, bool is_netdev
)
1352 struct i40e_mac_filter
*f
;
1354 if (!vsi
|| !macaddr
)
1357 f
= i40e_find_filter(vsi
, macaddr
, vlan
, is_vf
, is_netdev
);
1358 if (!f
|| f
->counter
== 0)
1366 } else if (is_netdev
) {
1368 f
->is_netdev
= false;
1372 /* make sure we don't remove a filter in use by VF or netdev */
1374 min_f
+= (f
->is_vf
? 1 : 0);
1375 min_f
+= (f
->is_netdev
? 1 : 0);
1377 if (f
->counter
> min_f
)
1381 /* counter == 0 tells sync_filters_subtask to
1382 * remove the filter from the firmware's list
1384 if (f
->counter
== 0) {
1386 vsi
->flags
|= I40E_VSI_FLAG_FILTER_CHANGED
;
1387 vsi
->back
->flags
|= I40E_FLAG_FILTER_SYNC
;
1392 * i40e_set_mac - NDO callback to set mac address
1393 * @netdev: network interface device structure
1394 * @p: pointer to an address structure
1396 * Returns 0 on success, negative on failure
1399 int i40e_set_mac(struct net_device
*netdev
, void *p
)
1401 static int i40e_set_mac(struct net_device
*netdev
, void *p
)
1404 struct i40e_netdev_priv
*np
= netdev_priv(netdev
);
1405 struct i40e_vsi
*vsi
= np
->vsi
;
1406 struct i40e_pf
*pf
= vsi
->back
;
1407 struct i40e_hw
*hw
= &pf
->hw
;
1408 struct sockaddr
*addr
= p
;
1409 struct i40e_mac_filter
*f
;
1411 if (!is_valid_ether_addr(addr
->sa_data
))
1412 return -EADDRNOTAVAIL
;
1414 if (ether_addr_equal(netdev
->dev_addr
, addr
->sa_data
)) {
1415 netdev_info(netdev
, "already using mac address %pM\n",
1420 if (test_bit(__I40E_DOWN
, &vsi
->back
->state
) ||
1421 test_bit(__I40E_RESET_RECOVERY_PENDING
, &vsi
->back
->state
))
1422 return -EADDRNOTAVAIL
;
1424 if (ether_addr_equal(hw
->mac
.addr
, addr
->sa_data
))
1425 netdev_info(netdev
, "returning to hw mac address %pM\n",
1428 netdev_info(netdev
, "set new mac address %pM\n", addr
->sa_data
);
1430 if (vsi
->type
== I40E_VSI_MAIN
) {
1432 ret
= i40e_aq_mac_address_write(&vsi
->back
->hw
,
1433 I40E_AQC_WRITE_TYPE_LAA_WOL
,
1434 addr
->sa_data
, NULL
);
1437 "Addr change for Main VSI failed: %d\n",
1439 return -EADDRNOTAVAIL
;
1443 if (ether_addr_equal(netdev
->dev_addr
, hw
->mac
.addr
)) {
1444 struct i40e_aqc_remove_macvlan_element_data element
;
1446 memset(&element
, 0, sizeof(element
));
1447 ether_addr_copy(element
.mac_addr
, netdev
->dev_addr
);
1448 element
.flags
= I40E_AQC_MACVLAN_DEL_PERFECT_MATCH
;
1449 i40e_aq_remove_macvlan(&pf
->hw
, vsi
->seid
, &element
, 1, NULL
);
1451 i40e_del_filter(vsi
, netdev
->dev_addr
, I40E_VLAN_ANY
,
1455 if (ether_addr_equal(addr
->sa_data
, hw
->mac
.addr
)) {
1456 struct i40e_aqc_add_macvlan_element_data element
;
1458 memset(&element
, 0, sizeof(element
));
1459 ether_addr_copy(element
.mac_addr
, hw
->mac
.addr
);
1460 element
.flags
= cpu_to_le16(I40E_AQC_MACVLAN_ADD_PERFECT_MATCH
);
1461 i40e_aq_add_macvlan(&pf
->hw
, vsi
->seid
, &element
, 1, NULL
);
1463 f
= i40e_add_filter(vsi
, addr
->sa_data
, I40E_VLAN_ANY
,
1469 i40e_sync_vsi_filters(vsi
);
1470 ether_addr_copy(netdev
->dev_addr
, addr
->sa_data
);
1476 * i40e_vsi_setup_queue_map - Setup a VSI queue map based on enabled_tc
1477 * @vsi: the VSI being setup
1478 * @ctxt: VSI context structure
1479 * @enabled_tc: Enabled TCs bitmap
1480 * @is_add: True if called before Add VSI
1482 * Setup VSI queue mapping for enabled traffic classes.
1485 void i40e_vsi_setup_queue_map(struct i40e_vsi
*vsi
,
1486 struct i40e_vsi_context
*ctxt
,
1490 static void i40e_vsi_setup_queue_map(struct i40e_vsi
*vsi
,
1491 struct i40e_vsi_context
*ctxt
,
1496 struct i40e_pf
*pf
= vsi
->back
;
1506 sections
= I40E_AQ_VSI_PROP_QUEUE_MAP_VALID
;
1509 if (enabled_tc
&& (vsi
->back
->flags
& I40E_FLAG_DCB_ENABLED
)) {
1510 /* Find numtc from enabled TC bitmap */
1511 for (i
= 0; i
< I40E_MAX_TRAFFIC_CLASS
; i
++) {
1512 if (enabled_tc
& (1 << i
)) /* TC is enabled */
1516 dev_warn(&pf
->pdev
->dev
, "DCB is enabled but no TC enabled, forcing TC0\n");
1520 /* At least TC0 is enabled in case of non-DCB case */
1524 vsi
->tc_config
.numtc
= numtc
;
1525 vsi
->tc_config
.enabled_tc
= enabled_tc
? enabled_tc
: 1;
1526 /* Number of queues per enabled TC */
1527 /* In MFP case we can have a much lower count of MSIx
1528 * vectors available and so we need to lower the used
1531 qcount
= min_t(int, vsi
->alloc_queue_pairs
, pf
->num_lan_msix
);
1532 num_tc_qps
= qcount
/ numtc
;
1533 num_tc_qps
= min_t(int, num_tc_qps
, I40E_MAX_QUEUES_PER_TC
);
1535 /* Setup queue offset/count for all TCs for given VSI */
1536 for (i
= 0; i
< I40E_MAX_TRAFFIC_CLASS
; i
++) {
1537 /* See if the given TC is enabled for the given VSI */
1538 if (vsi
->tc_config
.enabled_tc
& (1 << i
)) { /* TC is enabled */
1541 switch (vsi
->type
) {
1543 qcount
= min_t(int, pf
->rss_size
, num_tc_qps
);
1547 qcount
= num_tc_qps
;
1551 case I40E_VSI_SRIOV
:
1552 case I40E_VSI_VMDQ2
:
1554 qcount
= num_tc_qps
;
1558 vsi
->tc_config
.tc_info
[i
].qoffset
= offset
;
1559 vsi
->tc_config
.tc_info
[i
].qcount
= qcount
;
1561 /* find the next higher power-of-2 of num queue pairs */
1564 while (num_qps
&& ((1 << pow
) < qcount
)) {
1569 vsi
->tc_config
.tc_info
[i
].netdev_tc
= netdev_tc
++;
1571 (offset
<< I40E_AQ_VSI_TC_QUE_OFFSET_SHIFT
) |
1572 (pow
<< I40E_AQ_VSI_TC_QUE_NUMBER_SHIFT
);
1576 /* TC is not enabled so set the offset to
1577 * default queue and allocate one queue
1580 vsi
->tc_config
.tc_info
[i
].qoffset
= 0;
1581 vsi
->tc_config
.tc_info
[i
].qcount
= 1;
1582 vsi
->tc_config
.tc_info
[i
].netdev_tc
= 0;
1586 ctxt
->info
.tc_mapping
[i
] = cpu_to_le16(qmap
);
1589 /* Set actual Tx/Rx queue pairs */
1590 vsi
->num_queue_pairs
= offset
;
1591 if ((vsi
->type
== I40E_VSI_MAIN
) && (numtc
== 1)) {
1592 if (vsi
->req_queue_pairs
> 0)
1593 vsi
->num_queue_pairs
= vsi
->req_queue_pairs
;
1595 vsi
->num_queue_pairs
= pf
->num_lan_msix
;
1598 /* Scheduler section valid can only be set for ADD VSI */
1600 sections
|= I40E_AQ_VSI_PROP_SCHED_VALID
;
1602 ctxt
->info
.up_enable_bits
= enabled_tc
;
1604 if (vsi
->type
== I40E_VSI_SRIOV
) {
1605 ctxt
->info
.mapping_flags
|=
1606 cpu_to_le16(I40E_AQ_VSI_QUE_MAP_NONCONTIG
);
1607 for (i
= 0; i
< vsi
->num_queue_pairs
; i
++)
1608 ctxt
->info
.queue_mapping
[i
] =
1609 cpu_to_le16(vsi
->base_queue
+ i
);
1611 ctxt
->info
.mapping_flags
|=
1612 cpu_to_le16(I40E_AQ_VSI_QUE_MAP_CONTIG
);
1613 ctxt
->info
.queue_mapping
[0] = cpu_to_le16(vsi
->base_queue
);
1615 ctxt
->info
.valid_sections
|= cpu_to_le16(sections
);
1619 * i40e_set_rx_mode - NDO callback to set the netdev filters
1620 * @netdev: network interface device structure
1623 void i40e_set_rx_mode(struct net_device
*netdev
)
1625 static void i40e_set_rx_mode(struct net_device
*netdev
)
1628 struct i40e_netdev_priv
*np
= netdev_priv(netdev
);
1629 struct i40e_mac_filter
*f
, *ftmp
;
1630 struct i40e_vsi
*vsi
= np
->vsi
;
1631 struct netdev_hw_addr
*uca
;
1632 struct netdev_hw_addr
*mca
;
1633 struct netdev_hw_addr
*ha
;
1635 /* add addr if not already in the filter list */
1636 netdev_for_each_uc_addr(uca
, netdev
) {
1637 if (!i40e_find_mac(vsi
, uca
->addr
, false, true)) {
1638 if (i40e_is_vsi_in_vlan(vsi
))
1639 i40e_put_mac_in_vlan(vsi
, uca
->addr
,
1642 i40e_add_filter(vsi
, uca
->addr
, I40E_VLAN_ANY
,
1647 netdev_for_each_mc_addr(mca
, netdev
) {
1648 if (!i40e_find_mac(vsi
, mca
->addr
, false, true)) {
1649 if (i40e_is_vsi_in_vlan(vsi
))
1650 i40e_put_mac_in_vlan(vsi
, mca
->addr
,
1653 i40e_add_filter(vsi
, mca
->addr
, I40E_VLAN_ANY
,
1658 /* remove filter if not in netdev list */
1659 list_for_each_entry_safe(f
, ftmp
, &vsi
->mac_filter_list
, list
) {
1665 if (is_multicast_ether_addr(f
->macaddr
)) {
1666 netdev_for_each_mc_addr(mca
, netdev
) {
1667 if (ether_addr_equal(mca
->addr
, f
->macaddr
)) {
1673 netdev_for_each_uc_addr(uca
, netdev
) {
1674 if (ether_addr_equal(uca
->addr
, f
->macaddr
)) {
1680 for_each_dev_addr(netdev
, ha
) {
1681 if (ether_addr_equal(ha
->addr
, f
->macaddr
)) {
1689 vsi
, f
->macaddr
, I40E_VLAN_ANY
, false, true);
1692 /* check for other flag changes */
1693 if (vsi
->current_netdev_flags
!= vsi
->netdev
->flags
) {
1694 vsi
->flags
|= I40E_VSI_FLAG_FILTER_CHANGED
;
1695 vsi
->back
->flags
|= I40E_FLAG_FILTER_SYNC
;
1700 * i40e_sync_vsi_filters - Update the VSI filter list to the HW
1701 * @vsi: ptr to the VSI
1703 * Push any outstanding VSI filter changes through the AdminQ.
1705 * Returns 0 or error value
1707 int i40e_sync_vsi_filters(struct i40e_vsi
*vsi
)
1709 struct i40e_mac_filter
*f
, *ftmp
;
1710 bool promisc_forced_on
= false;
1711 bool add_happened
= false;
1712 int filter_list_len
= 0;
1713 u32 changed_flags
= 0;
1714 i40e_status aq_ret
= 0;
1720 /* empty array typed pointers, kcalloc later */
1721 struct i40e_aqc_add_macvlan_element_data
*add_list
;
1722 struct i40e_aqc_remove_macvlan_element_data
*del_list
;
1724 while (test_and_set_bit(__I40E_CONFIG_BUSY
, &vsi
->state
))
1725 usleep_range(1000, 2000);
1729 changed_flags
= vsi
->current_netdev_flags
^ vsi
->netdev
->flags
;
1730 vsi
->current_netdev_flags
= vsi
->netdev
->flags
;
1733 if (vsi
->flags
& I40E_VSI_FLAG_FILTER_CHANGED
) {
1734 vsi
->flags
&= ~I40E_VSI_FLAG_FILTER_CHANGED
;
1736 filter_list_len
= pf
->hw
.aq
.asq_buf_size
/
1737 sizeof(struct i40e_aqc_remove_macvlan_element_data
);
1738 del_list
= kcalloc(filter_list_len
,
1739 sizeof(struct i40e_aqc_remove_macvlan_element_data
),
1744 list_for_each_entry_safe(f
, ftmp
, &vsi
->mac_filter_list
, list
) {
1748 if (f
->counter
!= 0)
1753 /* add to delete list */
1754 ether_addr_copy(del_list
[num_del
].mac_addr
, f
->macaddr
);
1755 del_list
[num_del
].vlan_tag
=
1756 cpu_to_le16((u16
)(f
->vlan
==
1757 I40E_VLAN_ANY
? 0 : f
->vlan
));
1759 cmd_flags
|= I40E_AQC_MACVLAN_DEL_PERFECT_MATCH
;
1760 del_list
[num_del
].flags
= cmd_flags
;
1763 /* unlink from filter list */
1767 /* flush a full buffer */
1768 if (num_del
== filter_list_len
) {
1769 aq_ret
= i40e_aq_remove_macvlan(&pf
->hw
,
1770 vsi
->seid
, del_list
, num_del
,
1773 memset(del_list
, 0, sizeof(*del_list
));
1776 pf
->hw
.aq
.asq_last_status
!=
1778 dev_info(&pf
->pdev
->dev
,
1779 "ignoring delete macvlan error, err %d, aq_err %d while flushing a full buffer\n",
1781 pf
->hw
.aq
.asq_last_status
);
1785 aq_ret
= i40e_aq_remove_macvlan(&pf
->hw
, vsi
->seid
,
1786 del_list
, num_del
, NULL
);
1790 pf
->hw
.aq
.asq_last_status
!= I40E_AQ_RC_ENOENT
)
1791 dev_info(&pf
->pdev
->dev
,
1792 "ignoring delete macvlan error, err %d, aq_err %d\n",
1793 aq_ret
, pf
->hw
.aq
.asq_last_status
);
1799 /* do all the adds now */
1800 filter_list_len
= pf
->hw
.aq
.asq_buf_size
/
1801 sizeof(struct i40e_aqc_add_macvlan_element_data
),
1802 add_list
= kcalloc(filter_list_len
,
1803 sizeof(struct i40e_aqc_add_macvlan_element_data
),
1808 list_for_each_entry_safe(f
, ftmp
, &vsi
->mac_filter_list
, list
) {
1812 if (f
->counter
== 0)
1815 add_happened
= true;
1818 /* add to add array */
1819 ether_addr_copy(add_list
[num_add
].mac_addr
, f
->macaddr
);
1820 add_list
[num_add
].vlan_tag
=
1822 (u16
)(f
->vlan
== I40E_VLAN_ANY
? 0 : f
->vlan
));
1823 add_list
[num_add
].queue_number
= 0;
1825 cmd_flags
|= I40E_AQC_MACVLAN_ADD_PERFECT_MATCH
;
1826 add_list
[num_add
].flags
= cpu_to_le16(cmd_flags
);
1829 /* flush a full buffer */
1830 if (num_add
== filter_list_len
) {
1831 aq_ret
= i40e_aq_add_macvlan(&pf
->hw
, vsi
->seid
,
1838 memset(add_list
, 0, sizeof(*add_list
));
1842 aq_ret
= i40e_aq_add_macvlan(&pf
->hw
, vsi
->seid
,
1843 add_list
, num_add
, NULL
);
1849 if (add_happened
&& aq_ret
&&
1850 pf
->hw
.aq
.asq_last_status
!= I40E_AQ_RC_EINVAL
) {
1851 dev_info(&pf
->pdev
->dev
,
1852 "add filter failed, err %d, aq_err %d\n",
1853 aq_ret
, pf
->hw
.aq
.asq_last_status
);
1854 if ((pf
->hw
.aq
.asq_last_status
== I40E_AQ_RC_ENOSPC
) &&
1855 !test_bit(__I40E_FILTER_OVERFLOW_PROMISC
,
1857 promisc_forced_on
= true;
1858 set_bit(__I40E_FILTER_OVERFLOW_PROMISC
,
1860 dev_info(&pf
->pdev
->dev
, "promiscuous mode forced on\n");
1865 /* check for changes in promiscuous modes */
1866 if (changed_flags
& IFF_ALLMULTI
) {
1867 bool cur_multipromisc
;
1868 cur_multipromisc
= !!(vsi
->current_netdev_flags
& IFF_ALLMULTI
);
1869 aq_ret
= i40e_aq_set_vsi_multicast_promiscuous(&vsi
->back
->hw
,
1874 dev_info(&pf
->pdev
->dev
,
1875 "set multi promisc failed, err %d, aq_err %d\n",
1876 aq_ret
, pf
->hw
.aq
.asq_last_status
);
1878 if ((changed_flags
& IFF_PROMISC
) || promisc_forced_on
) {
1880 cur_promisc
= (!!(vsi
->current_netdev_flags
& IFF_PROMISC
) ||
1881 test_bit(__I40E_FILTER_OVERFLOW_PROMISC
,
1883 aq_ret
= i40e_aq_set_vsi_unicast_promiscuous(&vsi
->back
->hw
,
1887 dev_info(&pf
->pdev
->dev
,
1888 "set uni promisc failed, err %d, aq_err %d\n",
1889 aq_ret
, pf
->hw
.aq
.asq_last_status
);
1890 aq_ret
= i40e_aq_set_vsi_broadcast(&vsi
->back
->hw
,
1894 dev_info(&pf
->pdev
->dev
,
1895 "set brdcast promisc failed, err %d, aq_err %d\n",
1896 aq_ret
, pf
->hw
.aq
.asq_last_status
);
1899 clear_bit(__I40E_CONFIG_BUSY
, &vsi
->state
);
1904 * i40e_sync_filters_subtask - Sync the VSI filter list with HW
1905 * @pf: board private structure
1907 static void i40e_sync_filters_subtask(struct i40e_pf
*pf
)
1911 if (!pf
|| !(pf
->flags
& I40E_FLAG_FILTER_SYNC
))
1913 pf
->flags
&= ~I40E_FLAG_FILTER_SYNC
;
1915 for (v
= 0; v
< pf
->num_alloc_vsi
; v
++) {
1917 (pf
->vsi
[v
]->flags
& I40E_VSI_FLAG_FILTER_CHANGED
))
1918 i40e_sync_vsi_filters(pf
->vsi
[v
]);
1923 * i40e_change_mtu - NDO callback to change the Maximum Transfer Unit
1924 * @netdev: network interface device structure
1925 * @new_mtu: new value for maximum frame size
1927 * Returns 0 on success, negative on failure
1929 static int i40e_change_mtu(struct net_device
*netdev
, int new_mtu
)
1931 struct i40e_netdev_priv
*np
= netdev_priv(netdev
);
1932 int max_frame
= new_mtu
+ ETH_HLEN
+ ETH_FCS_LEN
+ VLAN_HLEN
;
1933 struct i40e_vsi
*vsi
= np
->vsi
;
1935 /* MTU < 68 is an error and causes problems on some kernels */
1936 if ((new_mtu
< 68) || (max_frame
> I40E_MAX_RXBUFFER
))
1939 netdev_info(netdev
, "changing MTU from %d to %d\n",
1940 netdev
->mtu
, new_mtu
);
1941 netdev
->mtu
= new_mtu
;
1942 if (netif_running(netdev
))
1943 i40e_vsi_reinit_locked(vsi
);
1949 * i40e_ioctl - Access the hwtstamp interface
1950 * @netdev: network interface device structure
1951 * @ifr: interface request data
1952 * @cmd: ioctl command
1954 int i40e_ioctl(struct net_device
*netdev
, struct ifreq
*ifr
, int cmd
)
1956 struct i40e_netdev_priv
*np
= netdev_priv(netdev
);
1957 struct i40e_pf
*pf
= np
->vsi
->back
;
1961 return i40e_ptp_get_ts_config(pf
, ifr
);
1963 return i40e_ptp_set_ts_config(pf
, ifr
);
1970 * i40e_vlan_stripping_enable - Turn on vlan stripping for the VSI
1971 * @vsi: the vsi being adjusted
1973 void i40e_vlan_stripping_enable(struct i40e_vsi
*vsi
)
1975 struct i40e_vsi_context ctxt
;
1978 if ((vsi
->info
.valid_sections
&
1979 cpu_to_le16(I40E_AQ_VSI_PROP_VLAN_VALID
)) &&
1980 ((vsi
->info
.port_vlan_flags
& I40E_AQ_VSI_PVLAN_MODE_MASK
) == 0))
1981 return; /* already enabled */
1983 vsi
->info
.valid_sections
= cpu_to_le16(I40E_AQ_VSI_PROP_VLAN_VALID
);
1984 vsi
->info
.port_vlan_flags
= I40E_AQ_VSI_PVLAN_MODE_ALL
|
1985 I40E_AQ_VSI_PVLAN_EMOD_STR_BOTH
;
1987 ctxt
.seid
= vsi
->seid
;
1988 ctxt
.info
= vsi
->info
;
1989 ret
= i40e_aq_update_vsi_params(&vsi
->back
->hw
, &ctxt
, NULL
);
1991 dev_info(&vsi
->back
->pdev
->dev
,
1992 "%s: update vsi failed, aq_err=%d\n",
1993 __func__
, vsi
->back
->hw
.aq
.asq_last_status
);
1998 * i40e_vlan_stripping_disable - Turn off vlan stripping for the VSI
1999 * @vsi: the vsi being adjusted
2001 void i40e_vlan_stripping_disable(struct i40e_vsi
*vsi
)
2003 struct i40e_vsi_context ctxt
;
2006 if ((vsi
->info
.valid_sections
&
2007 cpu_to_le16(I40E_AQ_VSI_PROP_VLAN_VALID
)) &&
2008 ((vsi
->info
.port_vlan_flags
& I40E_AQ_VSI_PVLAN_EMOD_MASK
) ==
2009 I40E_AQ_VSI_PVLAN_EMOD_MASK
))
2010 return; /* already disabled */
2012 vsi
->info
.valid_sections
= cpu_to_le16(I40E_AQ_VSI_PROP_VLAN_VALID
);
2013 vsi
->info
.port_vlan_flags
= I40E_AQ_VSI_PVLAN_MODE_ALL
|
2014 I40E_AQ_VSI_PVLAN_EMOD_NOTHING
;
2016 ctxt
.seid
= vsi
->seid
;
2017 ctxt
.info
= vsi
->info
;
2018 ret
= i40e_aq_update_vsi_params(&vsi
->back
->hw
, &ctxt
, NULL
);
2020 dev_info(&vsi
->back
->pdev
->dev
,
2021 "%s: update vsi failed, aq_err=%d\n",
2022 __func__
, vsi
->back
->hw
.aq
.asq_last_status
);
2027 * i40e_vlan_rx_register - Setup or shutdown vlan offload
2028 * @netdev: network interface to be adjusted
2029 * @features: netdev features to test if VLAN offload is enabled or not
2031 static void i40e_vlan_rx_register(struct net_device
*netdev
, u32 features
)
2033 struct i40e_netdev_priv
*np
= netdev_priv(netdev
);
2034 struct i40e_vsi
*vsi
= np
->vsi
;
2036 if (features
& NETIF_F_HW_VLAN_CTAG_RX
)
2037 i40e_vlan_stripping_enable(vsi
);
2039 i40e_vlan_stripping_disable(vsi
);
2043 * i40e_vsi_add_vlan - Add vsi membership for given vlan
2044 * @vsi: the vsi being configured
2045 * @vid: vlan id to be added (0 = untagged only , -1 = any)
2047 int i40e_vsi_add_vlan(struct i40e_vsi
*vsi
, s16 vid
)
2049 struct i40e_mac_filter
*f
, *add_f
;
2050 bool is_netdev
, is_vf
;
2052 is_vf
= (vsi
->type
== I40E_VSI_SRIOV
);
2053 is_netdev
= !!(vsi
->netdev
);
2056 add_f
= i40e_add_filter(vsi
, vsi
->netdev
->dev_addr
, vid
,
2059 dev_info(&vsi
->back
->pdev
->dev
,
2060 "Could not add vlan filter %d for %pM\n",
2061 vid
, vsi
->netdev
->dev_addr
);
2066 list_for_each_entry(f
, &vsi
->mac_filter_list
, list
) {
2067 add_f
= i40e_add_filter(vsi
, f
->macaddr
, vid
, is_vf
, is_netdev
);
2069 dev_info(&vsi
->back
->pdev
->dev
,
2070 "Could not add vlan filter %d for %pM\n",
2076 /* Now if we add a vlan tag, make sure to check if it is the first
2077 * tag (i.e. a "tag" -1 does exist) and if so replace the -1 "tag"
2078 * with 0, so we now accept untagged and specified tagged traffic
2079 * (and not any taged and untagged)
2082 if (is_netdev
&& i40e_find_filter(vsi
, vsi
->netdev
->dev_addr
,
2084 is_vf
, is_netdev
)) {
2085 i40e_del_filter(vsi
, vsi
->netdev
->dev_addr
,
2086 I40E_VLAN_ANY
, is_vf
, is_netdev
);
2087 add_f
= i40e_add_filter(vsi
, vsi
->netdev
->dev_addr
, 0,
2090 dev_info(&vsi
->back
->pdev
->dev
,
2091 "Could not add filter 0 for %pM\n",
2092 vsi
->netdev
->dev_addr
);
2098 /* Do not assume that I40E_VLAN_ANY should be reset to VLAN 0 */
2099 if (vid
> 0 && !vsi
->info
.pvid
) {
2100 list_for_each_entry(f
, &vsi
->mac_filter_list
, list
) {
2101 if (i40e_find_filter(vsi
, f
->macaddr
, I40E_VLAN_ANY
,
2102 is_vf
, is_netdev
)) {
2103 i40e_del_filter(vsi
, f
->macaddr
, I40E_VLAN_ANY
,
2105 add_f
= i40e_add_filter(vsi
, f
->macaddr
,
2106 0, is_vf
, is_netdev
);
2108 dev_info(&vsi
->back
->pdev
->dev
,
2109 "Could not add filter 0 for %pM\n",
2117 if (test_bit(__I40E_DOWN
, &vsi
->back
->state
) ||
2118 test_bit(__I40E_RESET_RECOVERY_PENDING
, &vsi
->back
->state
))
2121 return i40e_sync_vsi_filters(vsi
);
2125 * i40e_vsi_kill_vlan - Remove vsi membership for given vlan
2126 * @vsi: the vsi being configured
2127 * @vid: vlan id to be removed (0 = untagged only , -1 = any)
2129 * Return: 0 on success or negative otherwise
2131 int i40e_vsi_kill_vlan(struct i40e_vsi
*vsi
, s16 vid
)
2133 struct net_device
*netdev
= vsi
->netdev
;
2134 struct i40e_mac_filter
*f
, *add_f
;
2135 bool is_vf
, is_netdev
;
2136 int filter_count
= 0;
2138 is_vf
= (vsi
->type
== I40E_VSI_SRIOV
);
2139 is_netdev
= !!(netdev
);
2142 i40e_del_filter(vsi
, netdev
->dev_addr
, vid
, is_vf
, is_netdev
);
2144 list_for_each_entry(f
, &vsi
->mac_filter_list
, list
)
2145 i40e_del_filter(vsi
, f
->macaddr
, vid
, is_vf
, is_netdev
);
2147 /* go through all the filters for this VSI and if there is only
2148 * vid == 0 it means there are no other filters, so vid 0 must
2149 * be replaced with -1. This signifies that we should from now
2150 * on accept any traffic (with any tag present, or untagged)
2152 list_for_each_entry(f
, &vsi
->mac_filter_list
, list
) {
2155 ether_addr_equal(netdev
->dev_addr
, f
->macaddr
))
2163 if (!filter_count
&& is_netdev
) {
2164 i40e_del_filter(vsi
, netdev
->dev_addr
, 0, is_vf
, is_netdev
);
2165 f
= i40e_add_filter(vsi
, netdev
->dev_addr
, I40E_VLAN_ANY
,
2168 dev_info(&vsi
->back
->pdev
->dev
,
2169 "Could not add filter %d for %pM\n",
2170 I40E_VLAN_ANY
, netdev
->dev_addr
);
2175 if (!filter_count
) {
2176 list_for_each_entry(f
, &vsi
->mac_filter_list
, list
) {
2177 i40e_del_filter(vsi
, f
->macaddr
, 0, is_vf
, is_netdev
);
2178 add_f
= i40e_add_filter(vsi
, f
->macaddr
, I40E_VLAN_ANY
,
2181 dev_info(&vsi
->back
->pdev
->dev
,
2182 "Could not add filter %d for %pM\n",
2183 I40E_VLAN_ANY
, f
->macaddr
);
2189 if (test_bit(__I40E_DOWN
, &vsi
->back
->state
) ||
2190 test_bit(__I40E_RESET_RECOVERY_PENDING
, &vsi
->back
->state
))
2193 return i40e_sync_vsi_filters(vsi
);
2197 * i40e_vlan_rx_add_vid - Add a vlan id filter to HW offload
2198 * @netdev: network interface to be adjusted
2199 * @vid: vlan id to be added
2201 * net_device_ops implementation for adding vlan ids
2204 int i40e_vlan_rx_add_vid(struct net_device
*netdev
,
2205 __always_unused __be16 proto
, u16 vid
)
2207 static int i40e_vlan_rx_add_vid(struct net_device
*netdev
,
2208 __always_unused __be16 proto
, u16 vid
)
2211 struct i40e_netdev_priv
*np
= netdev_priv(netdev
);
2212 struct i40e_vsi
*vsi
= np
->vsi
;
2218 netdev_info(netdev
, "adding %pM vid=%d\n", netdev
->dev_addr
, vid
);
2220 /* If the network stack called us with vid = 0 then
2221 * it is asking to receive priority tagged packets with
2222 * vlan id 0. Our HW receives them by default when configured
2223 * to receive untagged packets so there is no need to add an
2224 * extra filter for vlan 0 tagged packets.
2227 ret
= i40e_vsi_add_vlan(vsi
, vid
);
2229 if (!ret
&& (vid
< VLAN_N_VID
))
2230 set_bit(vid
, vsi
->active_vlans
);
2236 * i40e_vlan_rx_kill_vid - Remove a vlan id filter from HW offload
2237 * @netdev: network interface to be adjusted
2238 * @vid: vlan id to be removed
2240 * net_device_ops implementation for removing vlan ids
2243 int i40e_vlan_rx_kill_vid(struct net_device
*netdev
,
2244 __always_unused __be16 proto
, u16 vid
)
2246 static int i40e_vlan_rx_kill_vid(struct net_device
*netdev
,
2247 __always_unused __be16 proto
, u16 vid
)
2250 struct i40e_netdev_priv
*np
= netdev_priv(netdev
);
2251 struct i40e_vsi
*vsi
= np
->vsi
;
2253 netdev_info(netdev
, "removing %pM vid=%d\n", netdev
->dev_addr
, vid
);
2255 /* return code is ignored as there is nothing a user
2256 * can do about failure to remove and a log message was
2257 * already printed from the other function
2259 i40e_vsi_kill_vlan(vsi
, vid
);
2261 clear_bit(vid
, vsi
->active_vlans
);
2267 * i40e_restore_vlan - Reinstate vlans when vsi/netdev comes back up
2268 * @vsi: the vsi being brought back up
2270 static void i40e_restore_vlan(struct i40e_vsi
*vsi
)
2277 i40e_vlan_rx_register(vsi
->netdev
, vsi
->netdev
->features
);
2279 for_each_set_bit(vid
, vsi
->active_vlans
, VLAN_N_VID
)
2280 i40e_vlan_rx_add_vid(vsi
->netdev
, htons(ETH_P_8021Q
),
2285 * i40e_vsi_add_pvid - Add pvid for the VSI
2286 * @vsi: the vsi being adjusted
2287 * @vid: the vlan id to set as a PVID
2289 int i40e_vsi_add_pvid(struct i40e_vsi
*vsi
, u16 vid
)
2291 struct i40e_vsi_context ctxt
;
2294 vsi
->info
.valid_sections
= cpu_to_le16(I40E_AQ_VSI_PROP_VLAN_VALID
);
2295 vsi
->info
.pvid
= cpu_to_le16(vid
);
2296 vsi
->info
.port_vlan_flags
= I40E_AQ_VSI_PVLAN_MODE_TAGGED
|
2297 I40E_AQ_VSI_PVLAN_INSERT_PVID
|
2298 I40E_AQ_VSI_PVLAN_EMOD_STR
;
2300 ctxt
.seid
= vsi
->seid
;
2301 ctxt
.info
= vsi
->info
;
2302 aq_ret
= i40e_aq_update_vsi_params(&vsi
->back
->hw
, &ctxt
, NULL
);
2304 dev_info(&vsi
->back
->pdev
->dev
,
2305 "%s: update vsi failed, aq_err=%d\n",
2306 __func__
, vsi
->back
->hw
.aq
.asq_last_status
);
2314 * i40e_vsi_remove_pvid - Remove the pvid from the VSI
2315 * @vsi: the vsi being adjusted
2317 * Just use the vlan_rx_register() service to put it back to normal
2319 void i40e_vsi_remove_pvid(struct i40e_vsi
*vsi
)
2321 i40e_vlan_stripping_disable(vsi
);
2327 * i40e_vsi_setup_tx_resources - Allocate VSI Tx queue resources
2328 * @vsi: ptr to the VSI
2330 * If this function returns with an error, then it's possible one or
2331 * more of the rings is populated (while the rest are not). It is the
2332 * callers duty to clean those orphaned rings.
2334 * Return 0 on success, negative on failure
2336 static int i40e_vsi_setup_tx_resources(struct i40e_vsi
*vsi
)
2340 for (i
= 0; i
< vsi
->num_queue_pairs
&& !err
; i
++)
2341 err
= i40e_setup_tx_descriptors(vsi
->tx_rings
[i
]);
2347 * i40e_vsi_free_tx_resources - Free Tx resources for VSI queues
2348 * @vsi: ptr to the VSI
2350 * Free VSI's transmit software resources
2352 static void i40e_vsi_free_tx_resources(struct i40e_vsi
*vsi
)
2359 for (i
= 0; i
< vsi
->num_queue_pairs
; i
++)
2360 if (vsi
->tx_rings
[i
] && vsi
->tx_rings
[i
]->desc
)
2361 i40e_free_tx_resources(vsi
->tx_rings
[i
]);
2365 * i40e_vsi_setup_rx_resources - Allocate VSI queues Rx resources
2366 * @vsi: ptr to the VSI
2368 * If this function returns with an error, then it's possible one or
2369 * more of the rings is populated (while the rest are not). It is the
2370 * callers duty to clean those orphaned rings.
2372 * Return 0 on success, negative on failure
2374 static int i40e_vsi_setup_rx_resources(struct i40e_vsi
*vsi
)
2378 for (i
= 0; i
< vsi
->num_queue_pairs
&& !err
; i
++)
2379 err
= i40e_setup_rx_descriptors(vsi
->rx_rings
[i
]);
2381 i40e_fcoe_setup_ddp_resources(vsi
);
2387 * i40e_vsi_free_rx_resources - Free Rx Resources for VSI queues
2388 * @vsi: ptr to the VSI
2390 * Free all receive software resources
2392 static void i40e_vsi_free_rx_resources(struct i40e_vsi
*vsi
)
2399 for (i
= 0; i
< vsi
->num_queue_pairs
; i
++)
2400 if (vsi
->rx_rings
[i
] && vsi
->rx_rings
[i
]->desc
)
2401 i40e_free_rx_resources(vsi
->rx_rings
[i
]);
2403 i40e_fcoe_free_ddp_resources(vsi
);
2408 * i40e_config_xps_tx_ring - Configure XPS for a Tx ring
2409 * @ring: The Tx ring to configure
2411 * This enables/disables XPS for a given Tx descriptor ring
2412 * based on the TCs enabled for the VSI that ring belongs to.
2414 static void i40e_config_xps_tx_ring(struct i40e_ring
*ring
)
2416 struct i40e_vsi
*vsi
= ring
->vsi
;
2419 if (!ring
->q_vector
|| !ring
->netdev
)
2422 /* Single TC mode enable XPS */
2423 if (vsi
->tc_config
.numtc
<= 1) {
2424 if (!test_and_set_bit(__I40E_TX_XPS_INIT_DONE
, &ring
->state
))
2425 netif_set_xps_queue(ring
->netdev
,
2426 &ring
->q_vector
->affinity_mask
,
2428 } else if (alloc_cpumask_var(&mask
, GFP_KERNEL
)) {
2429 /* Disable XPS to allow selection based on TC */
2430 bitmap_zero(cpumask_bits(mask
), nr_cpumask_bits
);
2431 netif_set_xps_queue(ring
->netdev
, mask
, ring
->queue_index
);
2432 free_cpumask_var(mask
);
2437 * i40e_configure_tx_ring - Configure a transmit ring context and rest
2438 * @ring: The Tx ring to configure
2440 * Configure the Tx descriptor ring in the HMC context.
2442 static int i40e_configure_tx_ring(struct i40e_ring
*ring
)
2444 struct i40e_vsi
*vsi
= ring
->vsi
;
2445 u16 pf_q
= vsi
->base_queue
+ ring
->queue_index
;
2446 struct i40e_hw
*hw
= &vsi
->back
->hw
;
2447 struct i40e_hmc_obj_txq tx_ctx
;
2448 i40e_status err
= 0;
2451 /* some ATR related tx ring init */
2452 if (vsi
->back
->flags
& I40E_FLAG_FD_ATR_ENABLED
) {
2453 ring
->atr_sample_rate
= vsi
->back
->atr_sample_rate
;
2454 ring
->atr_count
= 0;
2456 ring
->atr_sample_rate
= 0;
2460 i40e_config_xps_tx_ring(ring
);
2462 /* clear the context structure first */
2463 memset(&tx_ctx
, 0, sizeof(tx_ctx
));
2465 tx_ctx
.new_context
= 1;
2466 tx_ctx
.base
= (ring
->dma
/ 128);
2467 tx_ctx
.qlen
= ring
->count
;
2468 tx_ctx
.fd_ena
= !!(vsi
->back
->flags
& (I40E_FLAG_FD_SB_ENABLED
|
2469 I40E_FLAG_FD_ATR_ENABLED
));
2471 tx_ctx
.fc_ena
= (vsi
->type
== I40E_VSI_FCOE
);
2473 tx_ctx
.timesync_ena
= !!(vsi
->back
->flags
& I40E_FLAG_PTP
);
2474 /* FDIR VSI tx ring can still use RS bit and writebacks */
2475 if (vsi
->type
!= I40E_VSI_FDIR
)
2476 tx_ctx
.head_wb_ena
= 1;
2477 tx_ctx
.head_wb_addr
= ring
->dma
+
2478 (ring
->count
* sizeof(struct i40e_tx_desc
));
2480 /* As part of VSI creation/update, FW allocates certain
2481 * Tx arbitration queue sets for each TC enabled for
2482 * the VSI. The FW returns the handles to these queue
2483 * sets as part of the response buffer to Add VSI,
2484 * Update VSI, etc. AQ commands. It is expected that
2485 * these queue set handles be associated with the Tx
2486 * queues by the driver as part of the TX queue context
2487 * initialization. This has to be done regardless of
2488 * DCB as by default everything is mapped to TC0.
2490 tx_ctx
.rdylist
= le16_to_cpu(vsi
->info
.qs_handle
[ring
->dcb_tc
]);
2491 tx_ctx
.rdylist_act
= 0;
2493 /* clear the context in the HMC */
2494 err
= i40e_clear_lan_tx_queue_context(hw
, pf_q
);
2496 dev_info(&vsi
->back
->pdev
->dev
,
2497 "Failed to clear LAN Tx queue context on Tx ring %d (pf_q %d), error: %d\n",
2498 ring
->queue_index
, pf_q
, err
);
2502 /* set the context in the HMC */
2503 err
= i40e_set_lan_tx_queue_context(hw
, pf_q
, &tx_ctx
);
2505 dev_info(&vsi
->back
->pdev
->dev
,
2506 "Failed to set LAN Tx queue context on Tx ring %d (pf_q %d, error: %d\n",
2507 ring
->queue_index
, pf_q
, err
);
2511 /* Now associate this queue with this PCI function */
2512 if (vsi
->type
== I40E_VSI_VMDQ2
) {
2513 qtx_ctl
= I40E_QTX_CTL_VM_QUEUE
;
2514 qtx_ctl
|= ((vsi
->id
) << I40E_QTX_CTL_VFVM_INDX_SHIFT
) &
2515 I40E_QTX_CTL_VFVM_INDX_MASK
;
2517 qtx_ctl
= I40E_QTX_CTL_PF_QUEUE
;
2520 qtx_ctl
|= ((hw
->pf_id
<< I40E_QTX_CTL_PF_INDX_SHIFT
) &
2521 I40E_QTX_CTL_PF_INDX_MASK
);
2522 wr32(hw
, I40E_QTX_CTL(pf_q
), qtx_ctl
);
2525 clear_bit(__I40E_HANG_CHECK_ARMED
, &ring
->state
);
2527 /* cache tail off for easier writes later */
2528 ring
->tail
= hw
->hw_addr
+ I40E_QTX_TAIL(pf_q
);
2534 * i40e_configure_rx_ring - Configure a receive ring context
2535 * @ring: The Rx ring to configure
2537 * Configure the Rx descriptor ring in the HMC context.
2539 static int i40e_configure_rx_ring(struct i40e_ring
*ring
)
2541 struct i40e_vsi
*vsi
= ring
->vsi
;
2542 u32 chain_len
= vsi
->back
->hw
.func_caps
.rx_buf_chain_len
;
2543 u16 pf_q
= vsi
->base_queue
+ ring
->queue_index
;
2544 struct i40e_hw
*hw
= &vsi
->back
->hw
;
2545 struct i40e_hmc_obj_rxq rx_ctx
;
2546 i40e_status err
= 0;
2550 /* clear the context structure first */
2551 memset(&rx_ctx
, 0, sizeof(rx_ctx
));
2553 ring
->rx_buf_len
= vsi
->rx_buf_len
;
2554 ring
->rx_hdr_len
= vsi
->rx_hdr_len
;
2556 rx_ctx
.dbuff
= ring
->rx_buf_len
>> I40E_RXQ_CTX_DBUFF_SHIFT
;
2557 rx_ctx
.hbuff
= ring
->rx_hdr_len
>> I40E_RXQ_CTX_HBUFF_SHIFT
;
2559 rx_ctx
.base
= (ring
->dma
/ 128);
2560 rx_ctx
.qlen
= ring
->count
;
2562 if (vsi
->back
->flags
& I40E_FLAG_16BYTE_RX_DESC_ENABLED
) {
2563 set_ring_16byte_desc_enabled(ring
);
2569 rx_ctx
.dtype
= vsi
->dtype
;
2571 set_ring_ps_enabled(ring
);
2572 rx_ctx
.hsplit_0
= I40E_RX_SPLIT_L2
|
2574 I40E_RX_SPLIT_TCP_UDP
|
2577 rx_ctx
.hsplit_0
= 0;
2580 rx_ctx
.rxmax
= min_t(u16
, vsi
->max_frame
,
2581 (chain_len
* ring
->rx_buf_len
));
2582 if (hw
->revision_id
== 0)
2583 rx_ctx
.lrxqthresh
= 0;
2585 rx_ctx
.lrxqthresh
= 2;
2586 rx_ctx
.crcstrip
= 1;
2590 rx_ctx
.fc_ena
= (vsi
->type
== I40E_VSI_FCOE
);
2592 /* set the prefena field to 1 because the manual says to */
2595 /* clear the context in the HMC */
2596 err
= i40e_clear_lan_rx_queue_context(hw
, pf_q
);
2598 dev_info(&vsi
->back
->pdev
->dev
,
2599 "Failed to clear LAN Rx queue context on Rx ring %d (pf_q %d), error: %d\n",
2600 ring
->queue_index
, pf_q
, err
);
2604 /* set the context in the HMC */
2605 err
= i40e_set_lan_rx_queue_context(hw
, pf_q
, &rx_ctx
);
2607 dev_info(&vsi
->back
->pdev
->dev
,
2608 "Failed to set LAN Rx queue context on Rx ring %d (pf_q %d), error: %d\n",
2609 ring
->queue_index
, pf_q
, err
);
2613 /* cache tail for quicker writes, and clear the reg before use */
2614 ring
->tail
= hw
->hw_addr
+ I40E_QRX_TAIL(pf_q
);
2615 writel(0, ring
->tail
);
2617 if (ring_is_ps_enabled(ring
)) {
2618 i40e_alloc_rx_headers(ring
);
2619 i40e_alloc_rx_buffers_ps(ring
, I40E_DESC_UNUSED(ring
));
2621 i40e_alloc_rx_buffers_1buf(ring
, I40E_DESC_UNUSED(ring
));
2628 * i40e_vsi_configure_tx - Configure the VSI for Tx
2629 * @vsi: VSI structure describing this set of rings and resources
2631 * Configure the Tx VSI for operation.
2633 static int i40e_vsi_configure_tx(struct i40e_vsi
*vsi
)
2638 for (i
= 0; (i
< vsi
->num_queue_pairs
) && !err
; i
++)
2639 err
= i40e_configure_tx_ring(vsi
->tx_rings
[i
]);
2645 * i40e_vsi_configure_rx - Configure the VSI for Rx
2646 * @vsi: the VSI being configured
2648 * Configure the Rx VSI for operation.
2650 static int i40e_vsi_configure_rx(struct i40e_vsi
*vsi
)
2655 if (vsi
->netdev
&& (vsi
->netdev
->mtu
> ETH_DATA_LEN
))
2656 vsi
->max_frame
= vsi
->netdev
->mtu
+ ETH_HLEN
2657 + ETH_FCS_LEN
+ VLAN_HLEN
;
2659 vsi
->max_frame
= I40E_RXBUFFER_2048
;
2661 /* figure out correct receive buffer length */
2662 switch (vsi
->back
->flags
& (I40E_FLAG_RX_1BUF_ENABLED
|
2663 I40E_FLAG_RX_PS_ENABLED
)) {
2664 case I40E_FLAG_RX_1BUF_ENABLED
:
2665 vsi
->rx_hdr_len
= 0;
2666 vsi
->rx_buf_len
= vsi
->max_frame
;
2667 vsi
->dtype
= I40E_RX_DTYPE_NO_SPLIT
;
2669 case I40E_FLAG_RX_PS_ENABLED
:
2670 vsi
->rx_hdr_len
= I40E_RX_HDR_SIZE
;
2671 vsi
->rx_buf_len
= I40E_RXBUFFER_2048
;
2672 vsi
->dtype
= I40E_RX_DTYPE_HEADER_SPLIT
;
2675 vsi
->rx_hdr_len
= I40E_RX_HDR_SIZE
;
2676 vsi
->rx_buf_len
= I40E_RXBUFFER_2048
;
2677 vsi
->dtype
= I40E_RX_DTYPE_SPLIT_ALWAYS
;
2682 /* setup rx buffer for FCoE */
2683 if ((vsi
->type
== I40E_VSI_FCOE
) &&
2684 (vsi
->back
->flags
& I40E_FLAG_FCOE_ENABLED
)) {
2685 vsi
->rx_hdr_len
= 0;
2686 vsi
->rx_buf_len
= I40E_RXBUFFER_3072
;
2687 vsi
->max_frame
= I40E_RXBUFFER_3072
;
2688 vsi
->dtype
= I40E_RX_DTYPE_NO_SPLIT
;
2691 #endif /* I40E_FCOE */
2692 /* round up for the chip's needs */
2693 vsi
->rx_hdr_len
= ALIGN(vsi
->rx_hdr_len
,
2694 (1 << I40E_RXQ_CTX_HBUFF_SHIFT
));
2695 vsi
->rx_buf_len
= ALIGN(vsi
->rx_buf_len
,
2696 (1 << I40E_RXQ_CTX_DBUFF_SHIFT
));
2698 /* set up individual rings */
2699 for (i
= 0; i
< vsi
->num_queue_pairs
&& !err
; i
++)
2700 err
= i40e_configure_rx_ring(vsi
->rx_rings
[i
]);
2706 * i40e_vsi_config_dcb_rings - Update rings to reflect DCB TC
2707 * @vsi: ptr to the VSI
2709 static void i40e_vsi_config_dcb_rings(struct i40e_vsi
*vsi
)
2711 struct i40e_ring
*tx_ring
, *rx_ring
;
2712 u16 qoffset
, qcount
;
2715 if (!(vsi
->back
->flags
& I40E_FLAG_DCB_ENABLED
)) {
2716 /* Reset the TC information */
2717 for (i
= 0; i
< vsi
->num_queue_pairs
; i
++) {
2718 rx_ring
= vsi
->rx_rings
[i
];
2719 tx_ring
= vsi
->tx_rings
[i
];
2720 rx_ring
->dcb_tc
= 0;
2721 tx_ring
->dcb_tc
= 0;
2725 for (n
= 0; n
< I40E_MAX_TRAFFIC_CLASS
; n
++) {
2726 if (!(vsi
->tc_config
.enabled_tc
& (1 << n
)))
2729 qoffset
= vsi
->tc_config
.tc_info
[n
].qoffset
;
2730 qcount
= vsi
->tc_config
.tc_info
[n
].qcount
;
2731 for (i
= qoffset
; i
< (qoffset
+ qcount
); i
++) {
2732 rx_ring
= vsi
->rx_rings
[i
];
2733 tx_ring
= vsi
->tx_rings
[i
];
2734 rx_ring
->dcb_tc
= n
;
2735 tx_ring
->dcb_tc
= n
;
2741 * i40e_set_vsi_rx_mode - Call set_rx_mode on a VSI
2742 * @vsi: ptr to the VSI
2744 static void i40e_set_vsi_rx_mode(struct i40e_vsi
*vsi
)
2747 i40e_set_rx_mode(vsi
->netdev
);
2751 * i40e_fdir_filter_restore - Restore the Sideband Flow Director filters
2752 * @vsi: Pointer to the targeted VSI
2754 * This function replays the hlist on the hw where all the SB Flow Director
2755 * filters were saved.
2757 static void i40e_fdir_filter_restore(struct i40e_vsi
*vsi
)
2759 struct i40e_fdir_filter
*filter
;
2760 struct i40e_pf
*pf
= vsi
->back
;
2761 struct hlist_node
*node
;
2763 if (!(pf
->flags
& I40E_FLAG_FD_SB_ENABLED
))
2766 hlist_for_each_entry_safe(filter
, node
,
2767 &pf
->fdir_filter_list
, fdir_node
) {
2768 i40e_add_del_fdir(vsi
, filter
, true);
2773 * i40e_vsi_configure - Set up the VSI for action
2774 * @vsi: the VSI being configured
2776 static int i40e_vsi_configure(struct i40e_vsi
*vsi
)
2780 i40e_set_vsi_rx_mode(vsi
);
2781 i40e_restore_vlan(vsi
);
2782 i40e_vsi_config_dcb_rings(vsi
);
2783 err
= i40e_vsi_configure_tx(vsi
);
2785 err
= i40e_vsi_configure_rx(vsi
);
2791 * i40e_vsi_configure_msix - MSIX mode Interrupt Config in the HW
2792 * @vsi: the VSI being configured
2794 static void i40e_vsi_configure_msix(struct i40e_vsi
*vsi
)
2796 struct i40e_pf
*pf
= vsi
->back
;
2797 struct i40e_q_vector
*q_vector
;
2798 struct i40e_hw
*hw
= &pf
->hw
;
2804 /* The interrupt indexing is offset by 1 in the PFINT_ITRn
2805 * and PFINT_LNKLSTn registers, e.g.:
2806 * PFINT_ITRn[0..n-1] gets msix-1..msix-n (qpair interrupts)
2808 qp
= vsi
->base_queue
;
2809 vector
= vsi
->base_vector
;
2810 for (i
= 0; i
< vsi
->num_q_vectors
; i
++, vector
++) {
2811 q_vector
= vsi
->q_vectors
[i
];
2812 q_vector
->rx
.itr
= ITR_TO_REG(vsi
->rx_itr_setting
);
2813 q_vector
->rx
.latency_range
= I40E_LOW_LATENCY
;
2814 wr32(hw
, I40E_PFINT_ITRN(I40E_RX_ITR
, vector
- 1),
2816 q_vector
->tx
.itr
= ITR_TO_REG(vsi
->tx_itr_setting
);
2817 q_vector
->tx
.latency_range
= I40E_LOW_LATENCY
;
2818 wr32(hw
, I40E_PFINT_ITRN(I40E_TX_ITR
, vector
- 1),
2821 /* Linked list for the queuepairs assigned to this vector */
2822 wr32(hw
, I40E_PFINT_LNKLSTN(vector
- 1), qp
);
2823 for (q
= 0; q
< q_vector
->num_ringpairs
; q
++) {
2824 val
= I40E_QINT_RQCTL_CAUSE_ENA_MASK
|
2825 (I40E_RX_ITR
<< I40E_QINT_RQCTL_ITR_INDX_SHIFT
) |
2826 (vector
<< I40E_QINT_RQCTL_MSIX_INDX_SHIFT
) |
2827 (qp
<< I40E_QINT_RQCTL_NEXTQ_INDX_SHIFT
)|
2829 << I40E_QINT_RQCTL_NEXTQ_TYPE_SHIFT
);
2831 wr32(hw
, I40E_QINT_RQCTL(qp
), val
);
2833 val
= I40E_QINT_TQCTL_CAUSE_ENA_MASK
|
2834 (I40E_TX_ITR
<< I40E_QINT_TQCTL_ITR_INDX_SHIFT
) |
2835 (vector
<< I40E_QINT_TQCTL_MSIX_INDX_SHIFT
) |
2836 ((qp
+1) << I40E_QINT_TQCTL_NEXTQ_INDX_SHIFT
)|
2838 << I40E_QINT_TQCTL_NEXTQ_TYPE_SHIFT
);
2840 /* Terminate the linked list */
2841 if (q
== (q_vector
->num_ringpairs
- 1))
2842 val
|= (I40E_QUEUE_END_OF_LIST
2843 << I40E_QINT_TQCTL_NEXTQ_INDX_SHIFT
);
2845 wr32(hw
, I40E_QINT_TQCTL(qp
), val
);
2854 * i40e_enable_misc_int_causes - enable the non-queue interrupts
2855 * @hw: ptr to the hardware info
2857 static void i40e_enable_misc_int_causes(struct i40e_pf
*pf
)
2859 struct i40e_hw
*hw
= &pf
->hw
;
2862 /* clear things first */
2863 wr32(hw
, I40E_PFINT_ICR0_ENA
, 0); /* disable all */
2864 rd32(hw
, I40E_PFINT_ICR0
); /* read to clear */
2866 val
= I40E_PFINT_ICR0_ENA_ECC_ERR_MASK
|
2867 I40E_PFINT_ICR0_ENA_MAL_DETECT_MASK
|
2868 I40E_PFINT_ICR0_ENA_GRST_MASK
|
2869 I40E_PFINT_ICR0_ENA_PCI_EXCEPTION_MASK
|
2870 I40E_PFINT_ICR0_ENA_GPIO_MASK
|
2871 I40E_PFINT_ICR0_ENA_HMC_ERR_MASK
|
2872 I40E_PFINT_ICR0_ENA_VFLR_MASK
|
2873 I40E_PFINT_ICR0_ENA_ADMINQ_MASK
;
2875 if (pf
->flags
& I40E_FLAG_PTP
)
2876 val
|= I40E_PFINT_ICR0_ENA_TIMESYNC_MASK
;
2878 wr32(hw
, I40E_PFINT_ICR0_ENA
, val
);
2880 /* SW_ITR_IDX = 0, but don't change INTENA */
2881 wr32(hw
, I40E_PFINT_DYN_CTL0
, I40E_PFINT_DYN_CTL0_SW_ITR_INDX_MASK
|
2882 I40E_PFINT_DYN_CTL0_INTENA_MSK_MASK
);
2884 /* OTHER_ITR_IDX = 0 */
2885 wr32(hw
, I40E_PFINT_STAT_CTL0
, 0);
2889 * i40e_configure_msi_and_legacy - Legacy mode interrupt config in the HW
2890 * @vsi: the VSI being configured
2892 static void i40e_configure_msi_and_legacy(struct i40e_vsi
*vsi
)
2894 struct i40e_q_vector
*q_vector
= vsi
->q_vectors
[0];
2895 struct i40e_pf
*pf
= vsi
->back
;
2896 struct i40e_hw
*hw
= &pf
->hw
;
2899 /* set the ITR configuration */
2900 q_vector
->rx
.itr
= ITR_TO_REG(vsi
->rx_itr_setting
);
2901 q_vector
->rx
.latency_range
= I40E_LOW_LATENCY
;
2902 wr32(hw
, I40E_PFINT_ITR0(I40E_RX_ITR
), q_vector
->rx
.itr
);
2903 q_vector
->tx
.itr
= ITR_TO_REG(vsi
->tx_itr_setting
);
2904 q_vector
->tx
.latency_range
= I40E_LOW_LATENCY
;
2905 wr32(hw
, I40E_PFINT_ITR0(I40E_TX_ITR
), q_vector
->tx
.itr
);
2907 i40e_enable_misc_int_causes(pf
);
2909 /* FIRSTQ_INDX = 0, FIRSTQ_TYPE = 0 (rx) */
2910 wr32(hw
, I40E_PFINT_LNKLST0
, 0);
2912 /* Associate the queue pair to the vector and enable the queue int */
2913 val
= I40E_QINT_RQCTL_CAUSE_ENA_MASK
|
2914 (I40E_RX_ITR
<< I40E_QINT_RQCTL_ITR_INDX_SHIFT
) |
2915 (I40E_QUEUE_TYPE_TX
<< I40E_QINT_TQCTL_NEXTQ_TYPE_SHIFT
);
2917 wr32(hw
, I40E_QINT_RQCTL(0), val
);
2919 val
= I40E_QINT_TQCTL_CAUSE_ENA_MASK
|
2920 (I40E_TX_ITR
<< I40E_QINT_TQCTL_ITR_INDX_SHIFT
) |
2921 (I40E_QUEUE_END_OF_LIST
<< I40E_QINT_TQCTL_NEXTQ_INDX_SHIFT
);
2923 wr32(hw
, I40E_QINT_TQCTL(0), val
);
2928 * i40e_irq_dynamic_disable_icr0 - Disable default interrupt generation for icr0
2929 * @pf: board private structure
2931 void i40e_irq_dynamic_disable_icr0(struct i40e_pf
*pf
)
2933 struct i40e_hw
*hw
= &pf
->hw
;
2935 wr32(hw
, I40E_PFINT_DYN_CTL0
,
2936 I40E_ITR_NONE
<< I40E_PFINT_DYN_CTLN_ITR_INDX_SHIFT
);
2941 * i40e_irq_dynamic_enable_icr0 - Enable default interrupt generation for icr0
2942 * @pf: board private structure
2944 void i40e_irq_dynamic_enable_icr0(struct i40e_pf
*pf
)
2946 struct i40e_hw
*hw
= &pf
->hw
;
2949 val
= I40E_PFINT_DYN_CTL0_INTENA_MASK
|
2950 I40E_PFINT_DYN_CTL0_CLEARPBA_MASK
|
2951 (I40E_ITR_NONE
<< I40E_PFINT_DYN_CTL0_ITR_INDX_SHIFT
);
2953 wr32(hw
, I40E_PFINT_DYN_CTL0
, val
);
2958 * i40e_irq_dynamic_enable - Enable default interrupt generation settings
2959 * @vsi: pointer to a vsi
2960 * @vector: enable a particular Hw Interrupt vector
2962 void i40e_irq_dynamic_enable(struct i40e_vsi
*vsi
, int vector
)
2964 struct i40e_pf
*pf
= vsi
->back
;
2965 struct i40e_hw
*hw
= &pf
->hw
;
2968 val
= I40E_PFINT_DYN_CTLN_INTENA_MASK
|
2969 I40E_PFINT_DYN_CTLN_CLEARPBA_MASK
|
2970 (I40E_ITR_NONE
<< I40E_PFINT_DYN_CTLN_ITR_INDX_SHIFT
);
2971 wr32(hw
, I40E_PFINT_DYN_CTLN(vector
- 1), val
);
2972 /* skip the flush */
2976 * i40e_irq_dynamic_disable - Disable default interrupt generation settings
2977 * @vsi: pointer to a vsi
2978 * @vector: disable a particular Hw Interrupt vector
2980 void i40e_irq_dynamic_disable(struct i40e_vsi
*vsi
, int vector
)
2982 struct i40e_pf
*pf
= vsi
->back
;
2983 struct i40e_hw
*hw
= &pf
->hw
;
2986 val
= I40E_ITR_NONE
<< I40E_PFINT_DYN_CTLN_ITR_INDX_SHIFT
;
2987 wr32(hw
, I40E_PFINT_DYN_CTLN(vector
- 1), val
);
2992 * i40e_msix_clean_rings - MSIX mode Interrupt Handler
2993 * @irq: interrupt number
2994 * @data: pointer to a q_vector
2996 static irqreturn_t
i40e_msix_clean_rings(int irq
, void *data
)
2998 struct i40e_q_vector
*q_vector
= data
;
3000 if (!q_vector
->tx
.ring
&& !q_vector
->rx
.ring
)
3003 napi_schedule(&q_vector
->napi
);
3009 * i40e_vsi_request_irq_msix - Initialize MSI-X interrupts
3010 * @vsi: the VSI being configured
3011 * @basename: name for the vector
3013 * Allocates MSI-X vectors and requests interrupts from the kernel.
3015 static int i40e_vsi_request_irq_msix(struct i40e_vsi
*vsi
, char *basename
)
3017 int q_vectors
= vsi
->num_q_vectors
;
3018 struct i40e_pf
*pf
= vsi
->back
;
3019 int base
= vsi
->base_vector
;
3024 for (vector
= 0; vector
< q_vectors
; vector
++) {
3025 struct i40e_q_vector
*q_vector
= vsi
->q_vectors
[vector
];
3027 if (q_vector
->tx
.ring
&& q_vector
->rx
.ring
) {
3028 snprintf(q_vector
->name
, sizeof(q_vector
->name
) - 1,
3029 "%s-%s-%d", basename
, "TxRx", rx_int_idx
++);
3031 } else if (q_vector
->rx
.ring
) {
3032 snprintf(q_vector
->name
, sizeof(q_vector
->name
) - 1,
3033 "%s-%s-%d", basename
, "rx", rx_int_idx
++);
3034 } else if (q_vector
->tx
.ring
) {
3035 snprintf(q_vector
->name
, sizeof(q_vector
->name
) - 1,
3036 "%s-%s-%d", basename
, "tx", tx_int_idx
++);
3038 /* skip this unused q_vector */
3041 err
= request_irq(pf
->msix_entries
[base
+ vector
].vector
,
3047 dev_info(&pf
->pdev
->dev
,
3048 "%s: request_irq failed, error: %d\n",
3050 goto free_queue_irqs
;
3052 /* assign the mask for this irq */
3053 irq_set_affinity_hint(pf
->msix_entries
[base
+ vector
].vector
,
3054 &q_vector
->affinity_mask
);
3057 vsi
->irqs_ready
= true;
3063 irq_set_affinity_hint(pf
->msix_entries
[base
+ vector
].vector
,
3065 free_irq(pf
->msix_entries
[base
+ vector
].vector
,
3066 &(vsi
->q_vectors
[vector
]));
3072 * i40e_vsi_disable_irq - Mask off queue interrupt generation on the VSI
3073 * @vsi: the VSI being un-configured
3075 static void i40e_vsi_disable_irq(struct i40e_vsi
*vsi
)
3077 struct i40e_pf
*pf
= vsi
->back
;
3078 struct i40e_hw
*hw
= &pf
->hw
;
3079 int base
= vsi
->base_vector
;
3082 for (i
= 0; i
< vsi
->num_queue_pairs
; i
++) {
3083 wr32(hw
, I40E_QINT_TQCTL(vsi
->tx_rings
[i
]->reg_idx
), 0);
3084 wr32(hw
, I40E_QINT_RQCTL(vsi
->rx_rings
[i
]->reg_idx
), 0);
3087 if (pf
->flags
& I40E_FLAG_MSIX_ENABLED
) {
3088 for (i
= vsi
->base_vector
;
3089 i
< (vsi
->num_q_vectors
+ vsi
->base_vector
); i
++)
3090 wr32(hw
, I40E_PFINT_DYN_CTLN(i
- 1), 0);
3093 for (i
= 0; i
< vsi
->num_q_vectors
; i
++)
3094 synchronize_irq(pf
->msix_entries
[i
+ base
].vector
);
3096 /* Legacy and MSI mode - this stops all interrupt handling */
3097 wr32(hw
, I40E_PFINT_ICR0_ENA
, 0);
3098 wr32(hw
, I40E_PFINT_DYN_CTL0
, 0);
3100 synchronize_irq(pf
->pdev
->irq
);
3105 * i40e_vsi_enable_irq - Enable IRQ for the given VSI
3106 * @vsi: the VSI being configured
3108 static int i40e_vsi_enable_irq(struct i40e_vsi
*vsi
)
3110 struct i40e_pf
*pf
= vsi
->back
;
3113 if (pf
->flags
& I40E_FLAG_MSIX_ENABLED
) {
3114 for (i
= vsi
->base_vector
;
3115 i
< (vsi
->num_q_vectors
+ vsi
->base_vector
); i
++)
3116 i40e_irq_dynamic_enable(vsi
, i
);
3118 i40e_irq_dynamic_enable_icr0(pf
);
3121 i40e_flush(&pf
->hw
);
3126 * i40e_stop_misc_vector - Stop the vector that handles non-queue events
3127 * @pf: board private structure
3129 static void i40e_stop_misc_vector(struct i40e_pf
*pf
)
3132 wr32(&pf
->hw
, I40E_PFINT_ICR0_ENA
, 0);
3133 i40e_flush(&pf
->hw
);
3137 * i40e_intr - MSI/Legacy and non-queue interrupt handler
3138 * @irq: interrupt number
3139 * @data: pointer to a q_vector
3141 * This is the handler used for all MSI/Legacy interrupts, and deals
3142 * with both queue and non-queue interrupts. This is also used in
3143 * MSIX mode to handle the non-queue interrupts.
3145 static irqreturn_t
i40e_intr(int irq
, void *data
)
3147 struct i40e_pf
*pf
= (struct i40e_pf
*)data
;
3148 struct i40e_hw
*hw
= &pf
->hw
;
3149 irqreturn_t ret
= IRQ_NONE
;
3150 u32 icr0
, icr0_remaining
;
3153 icr0
= rd32(hw
, I40E_PFINT_ICR0
);
3154 ena_mask
= rd32(hw
, I40E_PFINT_ICR0_ENA
);
3156 /* if sharing a legacy IRQ, we might get called w/o an intr pending */
3157 if ((icr0
& I40E_PFINT_ICR0_INTEVENT_MASK
) == 0)
3160 /* if interrupt but no bits showing, must be SWINT */
3161 if (((icr0
& ~I40E_PFINT_ICR0_INTEVENT_MASK
) == 0) ||
3162 (icr0
& I40E_PFINT_ICR0_SWINT_MASK
))
3165 /* only q0 is used in MSI/Legacy mode, and none are used in MSIX */
3166 if (icr0
& I40E_PFINT_ICR0_QUEUE_0_MASK
) {
3168 /* temporarily disable queue cause for NAPI processing */
3169 u32 qval
= rd32(hw
, I40E_QINT_RQCTL(0));
3170 qval
&= ~I40E_QINT_RQCTL_CAUSE_ENA_MASK
;
3171 wr32(hw
, I40E_QINT_RQCTL(0), qval
);
3173 qval
= rd32(hw
, I40E_QINT_TQCTL(0));
3174 qval
&= ~I40E_QINT_TQCTL_CAUSE_ENA_MASK
;
3175 wr32(hw
, I40E_QINT_TQCTL(0), qval
);
3177 if (!test_bit(__I40E_DOWN
, &pf
->state
))
3178 napi_schedule(&pf
->vsi
[pf
->lan_vsi
]->q_vectors
[0]->napi
);
3181 if (icr0
& I40E_PFINT_ICR0_ADMINQ_MASK
) {
3182 ena_mask
&= ~I40E_PFINT_ICR0_ENA_ADMINQ_MASK
;
3183 set_bit(__I40E_ADMINQ_EVENT_PENDING
, &pf
->state
);
3186 if (icr0
& I40E_PFINT_ICR0_MAL_DETECT_MASK
) {
3187 ena_mask
&= ~I40E_PFINT_ICR0_ENA_MAL_DETECT_MASK
;
3188 set_bit(__I40E_MDD_EVENT_PENDING
, &pf
->state
);
3191 if (icr0
& I40E_PFINT_ICR0_VFLR_MASK
) {
3192 ena_mask
&= ~I40E_PFINT_ICR0_ENA_VFLR_MASK
;
3193 set_bit(__I40E_VFLR_EVENT_PENDING
, &pf
->state
);
3196 if (icr0
& I40E_PFINT_ICR0_GRST_MASK
) {
3197 if (!test_bit(__I40E_RESET_RECOVERY_PENDING
, &pf
->state
))
3198 set_bit(__I40E_RESET_INTR_RECEIVED
, &pf
->state
);
3199 ena_mask
&= ~I40E_PFINT_ICR0_ENA_GRST_MASK
;
3200 val
= rd32(hw
, I40E_GLGEN_RSTAT
);
3201 val
= (val
& I40E_GLGEN_RSTAT_RESET_TYPE_MASK
)
3202 >> I40E_GLGEN_RSTAT_RESET_TYPE_SHIFT
;
3203 if (val
== I40E_RESET_CORER
) {
3205 } else if (val
== I40E_RESET_GLOBR
) {
3207 } else if (val
== I40E_RESET_EMPR
) {
3209 set_bit(__I40E_EMP_RESET_INTR_RECEIVED
, &pf
->state
);
3213 if (icr0
& I40E_PFINT_ICR0_HMC_ERR_MASK
) {
3214 icr0
&= ~I40E_PFINT_ICR0_HMC_ERR_MASK
;
3215 dev_info(&pf
->pdev
->dev
, "HMC error interrupt\n");
3216 dev_info(&pf
->pdev
->dev
, "HMC error info 0x%x, HMC error data 0x%x\n",
3217 rd32(hw
, I40E_PFHMC_ERRORINFO
),
3218 rd32(hw
, I40E_PFHMC_ERRORDATA
));
3221 if (icr0
& I40E_PFINT_ICR0_TIMESYNC_MASK
) {
3222 u32 prttsyn_stat
= rd32(hw
, I40E_PRTTSYN_STAT_0
);
3224 if (prttsyn_stat
& I40E_PRTTSYN_STAT_0_TXTIME_MASK
) {
3225 icr0
&= ~I40E_PFINT_ICR0_ENA_TIMESYNC_MASK
;
3226 i40e_ptp_tx_hwtstamp(pf
);
3230 /* If a critical error is pending we have no choice but to reset the
3232 * Report and mask out any remaining unexpected interrupts.
3234 icr0_remaining
= icr0
& ena_mask
;
3235 if (icr0_remaining
) {
3236 dev_info(&pf
->pdev
->dev
, "unhandled interrupt icr0=0x%08x\n",
3238 if ((icr0_remaining
& I40E_PFINT_ICR0_PE_CRITERR_MASK
) ||
3239 (icr0_remaining
& I40E_PFINT_ICR0_PCI_EXCEPTION_MASK
) ||
3240 (icr0_remaining
& I40E_PFINT_ICR0_ECC_ERR_MASK
)) {
3241 dev_info(&pf
->pdev
->dev
, "device will be reset\n");
3242 set_bit(__I40E_PF_RESET_REQUESTED
, &pf
->state
);
3243 i40e_service_event_schedule(pf
);
3245 ena_mask
&= ~icr0_remaining
;
3250 /* re-enable interrupt causes */
3251 wr32(hw
, I40E_PFINT_ICR0_ENA
, ena_mask
);
3252 if (!test_bit(__I40E_DOWN
, &pf
->state
)) {
3253 i40e_service_event_schedule(pf
);
3254 i40e_irq_dynamic_enable_icr0(pf
);
3261 * i40e_clean_fdir_tx_irq - Reclaim resources after transmit completes
3262 * @tx_ring: tx ring to clean
3263 * @budget: how many cleans we're allowed
3265 * Returns true if there's any budget left (e.g. the clean is finished)
3267 static bool i40e_clean_fdir_tx_irq(struct i40e_ring
*tx_ring
, int budget
)
3269 struct i40e_vsi
*vsi
= tx_ring
->vsi
;
3270 u16 i
= tx_ring
->next_to_clean
;
3271 struct i40e_tx_buffer
*tx_buf
;
3272 struct i40e_tx_desc
*tx_desc
;
3274 tx_buf
= &tx_ring
->tx_bi
[i
];
3275 tx_desc
= I40E_TX_DESC(tx_ring
, i
);
3276 i
-= tx_ring
->count
;
3279 struct i40e_tx_desc
*eop_desc
= tx_buf
->next_to_watch
;
3281 /* if next_to_watch is not set then there is no work pending */
3285 /* prevent any other reads prior to eop_desc */
3286 read_barrier_depends();
3288 /* if the descriptor isn't done, no work yet to do */
3289 if (!(eop_desc
->cmd_type_offset_bsz
&
3290 cpu_to_le64(I40E_TX_DESC_DTYPE_DESC_DONE
)))
3293 /* clear next_to_watch to prevent false hangs */
3294 tx_buf
->next_to_watch
= NULL
;
3296 tx_desc
->buffer_addr
= 0;
3297 tx_desc
->cmd_type_offset_bsz
= 0;
3298 /* move past filter desc */
3303 i
-= tx_ring
->count
;
3304 tx_buf
= tx_ring
->tx_bi
;
3305 tx_desc
= I40E_TX_DESC(tx_ring
, 0);
3307 /* unmap skb header data */
3308 dma_unmap_single(tx_ring
->dev
,
3309 dma_unmap_addr(tx_buf
, dma
),
3310 dma_unmap_len(tx_buf
, len
),
3312 if (tx_buf
->tx_flags
& I40E_TX_FLAGS_FD_SB
)
3313 kfree(tx_buf
->raw_buf
);
3315 tx_buf
->raw_buf
= NULL
;
3316 tx_buf
->tx_flags
= 0;
3317 tx_buf
->next_to_watch
= NULL
;
3318 dma_unmap_len_set(tx_buf
, len
, 0);
3319 tx_desc
->buffer_addr
= 0;
3320 tx_desc
->cmd_type_offset_bsz
= 0;
3322 /* move us past the eop_desc for start of next FD desc */
3327 i
-= tx_ring
->count
;
3328 tx_buf
= tx_ring
->tx_bi
;
3329 tx_desc
= I40E_TX_DESC(tx_ring
, 0);
3332 /* update budget accounting */
3334 } while (likely(budget
));
3336 i
+= tx_ring
->count
;
3337 tx_ring
->next_to_clean
= i
;
3339 if (vsi
->back
->flags
& I40E_FLAG_MSIX_ENABLED
) {
3340 i40e_irq_dynamic_enable(vsi
,
3341 tx_ring
->q_vector
->v_idx
+ vsi
->base_vector
);
3347 * i40e_fdir_clean_ring - Interrupt Handler for FDIR SB ring
3348 * @irq: interrupt number
3349 * @data: pointer to a q_vector
3351 static irqreturn_t
i40e_fdir_clean_ring(int irq
, void *data
)
3353 struct i40e_q_vector
*q_vector
= data
;
3354 struct i40e_vsi
*vsi
;
3356 if (!q_vector
->tx
.ring
)
3359 vsi
= q_vector
->tx
.ring
->vsi
;
3360 i40e_clean_fdir_tx_irq(q_vector
->tx
.ring
, vsi
->work_limit
);
3366 * i40e_map_vector_to_qp - Assigns the queue pair to the vector
3367 * @vsi: the VSI being configured
3368 * @v_idx: vector index
3369 * @qp_idx: queue pair index
3371 static void map_vector_to_qp(struct i40e_vsi
*vsi
, int v_idx
, int qp_idx
)
3373 struct i40e_q_vector
*q_vector
= vsi
->q_vectors
[v_idx
];
3374 struct i40e_ring
*tx_ring
= vsi
->tx_rings
[qp_idx
];
3375 struct i40e_ring
*rx_ring
= vsi
->rx_rings
[qp_idx
];
3377 tx_ring
->q_vector
= q_vector
;
3378 tx_ring
->next
= q_vector
->tx
.ring
;
3379 q_vector
->tx
.ring
= tx_ring
;
3380 q_vector
->tx
.count
++;
3382 rx_ring
->q_vector
= q_vector
;
3383 rx_ring
->next
= q_vector
->rx
.ring
;
3384 q_vector
->rx
.ring
= rx_ring
;
3385 q_vector
->rx
.count
++;
3389 * i40e_vsi_map_rings_to_vectors - Maps descriptor rings to vectors
3390 * @vsi: the VSI being configured
3392 * This function maps descriptor rings to the queue-specific vectors
3393 * we were allotted through the MSI-X enabling code. Ideally, we'd have
3394 * one vector per queue pair, but on a constrained vector budget, we
3395 * group the queue pairs as "efficiently" as possible.
3397 static void i40e_vsi_map_rings_to_vectors(struct i40e_vsi
*vsi
)
3399 int qp_remaining
= vsi
->num_queue_pairs
;
3400 int q_vectors
= vsi
->num_q_vectors
;
3405 /* If we don't have enough vectors for a 1-to-1 mapping, we'll have to
3406 * group them so there are multiple queues per vector.
3407 * It is also important to go through all the vectors available to be
3408 * sure that if we don't use all the vectors, that the remaining vectors
3409 * are cleared. This is especially important when decreasing the
3410 * number of queues in use.
3412 for (; v_start
< q_vectors
; v_start
++) {
3413 struct i40e_q_vector
*q_vector
= vsi
->q_vectors
[v_start
];
3415 num_ringpairs
= DIV_ROUND_UP(qp_remaining
, q_vectors
- v_start
);
3417 q_vector
->num_ringpairs
= num_ringpairs
;
3419 q_vector
->rx
.count
= 0;
3420 q_vector
->tx
.count
= 0;
3421 q_vector
->rx
.ring
= NULL
;
3422 q_vector
->tx
.ring
= NULL
;
3424 while (num_ringpairs
--) {
3425 map_vector_to_qp(vsi
, v_start
, qp_idx
);
3433 * i40e_vsi_request_irq - Request IRQ from the OS
3434 * @vsi: the VSI being configured
3435 * @basename: name for the vector
3437 static int i40e_vsi_request_irq(struct i40e_vsi
*vsi
, char *basename
)
3439 struct i40e_pf
*pf
= vsi
->back
;
3442 if (pf
->flags
& I40E_FLAG_MSIX_ENABLED
)
3443 err
= i40e_vsi_request_irq_msix(vsi
, basename
);
3444 else if (pf
->flags
& I40E_FLAG_MSI_ENABLED
)
3445 err
= request_irq(pf
->pdev
->irq
, i40e_intr
, 0,
3448 err
= request_irq(pf
->pdev
->irq
, i40e_intr
, IRQF_SHARED
,
3452 dev_info(&pf
->pdev
->dev
, "request_irq failed, Error %d\n", err
);
3457 #ifdef CONFIG_NET_POLL_CONTROLLER
3459 * i40e_netpoll - A Polling 'interrupt'handler
3460 * @netdev: network interface device structure
3462 * This is used by netconsole to send skbs without having to re-enable
3463 * interrupts. It's not called while the normal interrupt routine is executing.
3466 void i40e_netpoll(struct net_device
*netdev
)
3468 static void i40e_netpoll(struct net_device
*netdev
)
3471 struct i40e_netdev_priv
*np
= netdev_priv(netdev
);
3472 struct i40e_vsi
*vsi
= np
->vsi
;
3473 struct i40e_pf
*pf
= vsi
->back
;
3476 /* if interface is down do nothing */
3477 if (test_bit(__I40E_DOWN
, &vsi
->state
))
3480 pf
->flags
|= I40E_FLAG_IN_NETPOLL
;
3481 if (pf
->flags
& I40E_FLAG_MSIX_ENABLED
) {
3482 for (i
= 0; i
< vsi
->num_q_vectors
; i
++)
3483 i40e_msix_clean_rings(0, vsi
->q_vectors
[i
]);
3485 i40e_intr(pf
->pdev
->irq
, netdev
);
3487 pf
->flags
&= ~I40E_FLAG_IN_NETPOLL
;
3492 * i40e_pf_txq_wait - Wait for a PF's Tx queue to be enabled or disabled
3493 * @pf: the PF being configured
3494 * @pf_q: the PF queue
3495 * @enable: enable or disable state of the queue
3497 * This routine will wait for the given Tx queue of the PF to reach the
3498 * enabled or disabled state.
3499 * Returns -ETIMEDOUT in case of failing to reach the requested state after
3500 * multiple retries; else will return 0 in case of success.
3502 static int i40e_pf_txq_wait(struct i40e_pf
*pf
, int pf_q
, bool enable
)
3507 for (i
= 0; i
< I40E_QUEUE_WAIT_RETRY_LIMIT
; i
++) {
3508 tx_reg
= rd32(&pf
->hw
, I40E_QTX_ENA(pf_q
));
3509 if (enable
== !!(tx_reg
& I40E_QTX_ENA_QENA_STAT_MASK
))
3512 usleep_range(10, 20);
3514 if (i
>= I40E_QUEUE_WAIT_RETRY_LIMIT
)
3521 * i40e_vsi_control_tx - Start or stop a VSI's rings
3522 * @vsi: the VSI being configured
3523 * @enable: start or stop the rings
3525 static int i40e_vsi_control_tx(struct i40e_vsi
*vsi
, bool enable
)
3527 struct i40e_pf
*pf
= vsi
->back
;
3528 struct i40e_hw
*hw
= &pf
->hw
;
3529 int i
, j
, pf_q
, ret
= 0;
3532 pf_q
= vsi
->base_queue
;
3533 for (i
= 0; i
< vsi
->num_queue_pairs
; i
++, pf_q
++) {
3535 /* warn the TX unit of coming changes */
3536 i40e_pre_tx_queue_cfg(&pf
->hw
, pf_q
, enable
);
3538 usleep_range(10, 20);
3540 for (j
= 0; j
< 50; j
++) {
3541 tx_reg
= rd32(hw
, I40E_QTX_ENA(pf_q
));
3542 if (((tx_reg
>> I40E_QTX_ENA_QENA_REQ_SHIFT
) & 1) ==
3543 ((tx_reg
>> I40E_QTX_ENA_QENA_STAT_SHIFT
) & 1))
3545 usleep_range(1000, 2000);
3547 /* Skip if the queue is already in the requested state */
3548 if (enable
== !!(tx_reg
& I40E_QTX_ENA_QENA_STAT_MASK
))
3551 /* turn on/off the queue */
3553 wr32(hw
, I40E_QTX_HEAD(pf_q
), 0);
3554 tx_reg
|= I40E_QTX_ENA_QENA_REQ_MASK
;
3556 tx_reg
&= ~I40E_QTX_ENA_QENA_REQ_MASK
;
3559 wr32(hw
, I40E_QTX_ENA(pf_q
), tx_reg
);
3560 /* No waiting for the Tx queue to disable */
3561 if (!enable
&& test_bit(__I40E_PORT_TX_SUSPENDED
, &pf
->state
))
3564 /* wait for the change to finish */
3565 ret
= i40e_pf_txq_wait(pf
, pf_q
, enable
);
3567 dev_info(&pf
->pdev
->dev
,
3568 "%s: VSI seid %d Tx ring %d %sable timeout\n",
3569 __func__
, vsi
->seid
, pf_q
,
3570 (enable
? "en" : "dis"));
3575 if (hw
->revision_id
== 0)
3581 * i40e_pf_rxq_wait - Wait for a PF's Rx queue to be enabled or disabled
3582 * @pf: the PF being configured
3583 * @pf_q: the PF queue
3584 * @enable: enable or disable state of the queue
3586 * This routine will wait for the given Rx queue of the PF to reach the
3587 * enabled or disabled state.
3588 * Returns -ETIMEDOUT in case of failing to reach the requested state after
3589 * multiple retries; else will return 0 in case of success.
3591 static int i40e_pf_rxq_wait(struct i40e_pf
*pf
, int pf_q
, bool enable
)
3596 for (i
= 0; i
< I40E_QUEUE_WAIT_RETRY_LIMIT
; i
++) {
3597 rx_reg
= rd32(&pf
->hw
, I40E_QRX_ENA(pf_q
));
3598 if (enable
== !!(rx_reg
& I40E_QRX_ENA_QENA_STAT_MASK
))
3601 usleep_range(10, 20);
3603 if (i
>= I40E_QUEUE_WAIT_RETRY_LIMIT
)
3610 * i40e_vsi_control_rx - Start or stop a VSI's rings
3611 * @vsi: the VSI being configured
3612 * @enable: start or stop the rings
3614 static int i40e_vsi_control_rx(struct i40e_vsi
*vsi
, bool enable
)
3616 struct i40e_pf
*pf
= vsi
->back
;
3617 struct i40e_hw
*hw
= &pf
->hw
;
3618 int i
, j
, pf_q
, ret
= 0;
3621 pf_q
= vsi
->base_queue
;
3622 for (i
= 0; i
< vsi
->num_queue_pairs
; i
++, pf_q
++) {
3623 for (j
= 0; j
< 50; j
++) {
3624 rx_reg
= rd32(hw
, I40E_QRX_ENA(pf_q
));
3625 if (((rx_reg
>> I40E_QRX_ENA_QENA_REQ_SHIFT
) & 1) ==
3626 ((rx_reg
>> I40E_QRX_ENA_QENA_STAT_SHIFT
) & 1))
3628 usleep_range(1000, 2000);
3631 /* Skip if the queue is already in the requested state */
3632 if (enable
== !!(rx_reg
& I40E_QRX_ENA_QENA_STAT_MASK
))
3635 /* turn on/off the queue */
3637 rx_reg
|= I40E_QRX_ENA_QENA_REQ_MASK
;
3639 rx_reg
&= ~I40E_QRX_ENA_QENA_REQ_MASK
;
3640 wr32(hw
, I40E_QRX_ENA(pf_q
), rx_reg
);
3642 /* wait for the change to finish */
3643 ret
= i40e_pf_rxq_wait(pf
, pf_q
, enable
);
3645 dev_info(&pf
->pdev
->dev
,
3646 "%s: VSI seid %d Rx ring %d %sable timeout\n",
3647 __func__
, vsi
->seid
, pf_q
,
3648 (enable
? "en" : "dis"));
3657 * i40e_vsi_control_rings - Start or stop a VSI's rings
3658 * @vsi: the VSI being configured
3659 * @enable: start or stop the rings
3661 int i40e_vsi_control_rings(struct i40e_vsi
*vsi
, bool request
)
3665 /* do rx first for enable and last for disable */
3667 ret
= i40e_vsi_control_rx(vsi
, request
);
3670 ret
= i40e_vsi_control_tx(vsi
, request
);
3672 /* Ignore return value, we need to shutdown whatever we can */
3673 i40e_vsi_control_tx(vsi
, request
);
3674 i40e_vsi_control_rx(vsi
, request
);
3681 * i40e_vsi_free_irq - Free the irq association with the OS
3682 * @vsi: the VSI being configured
3684 static void i40e_vsi_free_irq(struct i40e_vsi
*vsi
)
3686 struct i40e_pf
*pf
= vsi
->back
;
3687 struct i40e_hw
*hw
= &pf
->hw
;
3688 int base
= vsi
->base_vector
;
3692 if (pf
->flags
& I40E_FLAG_MSIX_ENABLED
) {
3693 if (!vsi
->q_vectors
)
3696 if (!vsi
->irqs_ready
)
3699 vsi
->irqs_ready
= false;
3700 for (i
= 0; i
< vsi
->num_q_vectors
; i
++) {
3701 u16 vector
= i
+ base
;
3703 /* free only the irqs that were actually requested */
3704 if (!vsi
->q_vectors
[i
] ||
3705 !vsi
->q_vectors
[i
]->num_ringpairs
)
3708 /* clear the affinity_mask in the IRQ descriptor */
3709 irq_set_affinity_hint(pf
->msix_entries
[vector
].vector
,
3711 free_irq(pf
->msix_entries
[vector
].vector
,
3714 /* Tear down the interrupt queue link list
3716 * We know that they come in pairs and always
3717 * the Rx first, then the Tx. To clear the
3718 * link list, stick the EOL value into the
3719 * next_q field of the registers.
3721 val
= rd32(hw
, I40E_PFINT_LNKLSTN(vector
- 1));
3722 qp
= (val
& I40E_PFINT_LNKLSTN_FIRSTQ_INDX_MASK
)
3723 >> I40E_PFINT_LNKLSTN_FIRSTQ_INDX_SHIFT
;
3724 val
|= I40E_QUEUE_END_OF_LIST
3725 << I40E_PFINT_LNKLSTN_FIRSTQ_INDX_SHIFT
;
3726 wr32(hw
, I40E_PFINT_LNKLSTN(vector
- 1), val
);
3728 while (qp
!= I40E_QUEUE_END_OF_LIST
) {
3731 val
= rd32(hw
, I40E_QINT_RQCTL(qp
));
3733 val
&= ~(I40E_QINT_RQCTL_MSIX_INDX_MASK
|
3734 I40E_QINT_RQCTL_MSIX0_INDX_MASK
|
3735 I40E_QINT_RQCTL_CAUSE_ENA_MASK
|
3736 I40E_QINT_RQCTL_INTEVENT_MASK
);
3738 val
|= (I40E_QINT_RQCTL_ITR_INDX_MASK
|
3739 I40E_QINT_RQCTL_NEXTQ_INDX_MASK
);
3741 wr32(hw
, I40E_QINT_RQCTL(qp
), val
);
3743 val
= rd32(hw
, I40E_QINT_TQCTL(qp
));
3745 next
= (val
& I40E_QINT_TQCTL_NEXTQ_INDX_MASK
)
3746 >> I40E_QINT_TQCTL_NEXTQ_INDX_SHIFT
;
3748 val
&= ~(I40E_QINT_TQCTL_MSIX_INDX_MASK
|
3749 I40E_QINT_TQCTL_MSIX0_INDX_MASK
|
3750 I40E_QINT_TQCTL_CAUSE_ENA_MASK
|
3751 I40E_QINT_TQCTL_INTEVENT_MASK
);
3753 val
|= (I40E_QINT_TQCTL_ITR_INDX_MASK
|
3754 I40E_QINT_TQCTL_NEXTQ_INDX_MASK
);
3756 wr32(hw
, I40E_QINT_TQCTL(qp
), val
);
3761 free_irq(pf
->pdev
->irq
, pf
);
3763 val
= rd32(hw
, I40E_PFINT_LNKLST0
);
3764 qp
= (val
& I40E_PFINT_LNKLSTN_FIRSTQ_INDX_MASK
)
3765 >> I40E_PFINT_LNKLSTN_FIRSTQ_INDX_SHIFT
;
3766 val
|= I40E_QUEUE_END_OF_LIST
3767 << I40E_PFINT_LNKLST0_FIRSTQ_INDX_SHIFT
;
3768 wr32(hw
, I40E_PFINT_LNKLST0
, val
);
3770 val
= rd32(hw
, I40E_QINT_RQCTL(qp
));
3771 val
&= ~(I40E_QINT_RQCTL_MSIX_INDX_MASK
|
3772 I40E_QINT_RQCTL_MSIX0_INDX_MASK
|
3773 I40E_QINT_RQCTL_CAUSE_ENA_MASK
|
3774 I40E_QINT_RQCTL_INTEVENT_MASK
);
3776 val
|= (I40E_QINT_RQCTL_ITR_INDX_MASK
|
3777 I40E_QINT_RQCTL_NEXTQ_INDX_MASK
);
3779 wr32(hw
, I40E_QINT_RQCTL(qp
), val
);
3781 val
= rd32(hw
, I40E_QINT_TQCTL(qp
));
3783 val
&= ~(I40E_QINT_TQCTL_MSIX_INDX_MASK
|
3784 I40E_QINT_TQCTL_MSIX0_INDX_MASK
|
3785 I40E_QINT_TQCTL_CAUSE_ENA_MASK
|
3786 I40E_QINT_TQCTL_INTEVENT_MASK
);
3788 val
|= (I40E_QINT_TQCTL_ITR_INDX_MASK
|
3789 I40E_QINT_TQCTL_NEXTQ_INDX_MASK
);
3791 wr32(hw
, I40E_QINT_TQCTL(qp
), val
);
3796 * i40e_free_q_vector - Free memory allocated for specific interrupt vector
3797 * @vsi: the VSI being configured
3798 * @v_idx: Index of vector to be freed
3800 * This function frees the memory allocated to the q_vector. In addition if
3801 * NAPI is enabled it will delete any references to the NAPI struct prior
3802 * to freeing the q_vector.
3804 static void i40e_free_q_vector(struct i40e_vsi
*vsi
, int v_idx
)
3806 struct i40e_q_vector
*q_vector
= vsi
->q_vectors
[v_idx
];
3807 struct i40e_ring
*ring
;
3812 /* disassociate q_vector from rings */
3813 i40e_for_each_ring(ring
, q_vector
->tx
)
3814 ring
->q_vector
= NULL
;
3816 i40e_for_each_ring(ring
, q_vector
->rx
)
3817 ring
->q_vector
= NULL
;
3819 /* only VSI w/ an associated netdev is set up w/ NAPI */
3821 netif_napi_del(&q_vector
->napi
);
3823 vsi
->q_vectors
[v_idx
] = NULL
;
3825 kfree_rcu(q_vector
, rcu
);
3829 * i40e_vsi_free_q_vectors - Free memory allocated for interrupt vectors
3830 * @vsi: the VSI being un-configured
3832 * This frees the memory allocated to the q_vectors and
3833 * deletes references to the NAPI struct.
3835 static void i40e_vsi_free_q_vectors(struct i40e_vsi
*vsi
)
3839 for (v_idx
= 0; v_idx
< vsi
->num_q_vectors
; v_idx
++)
3840 i40e_free_q_vector(vsi
, v_idx
);
3844 * i40e_reset_interrupt_capability - Disable interrupt setup in OS
3845 * @pf: board private structure
3847 static void i40e_reset_interrupt_capability(struct i40e_pf
*pf
)
3849 /* If we're in Legacy mode, the interrupt was cleaned in vsi_close */
3850 if (pf
->flags
& I40E_FLAG_MSIX_ENABLED
) {
3851 pci_disable_msix(pf
->pdev
);
3852 kfree(pf
->msix_entries
);
3853 pf
->msix_entries
= NULL
;
3854 kfree(pf
->irq_pile
);
3855 pf
->irq_pile
= NULL
;
3856 } else if (pf
->flags
& I40E_FLAG_MSI_ENABLED
) {
3857 pci_disable_msi(pf
->pdev
);
3859 pf
->flags
&= ~(I40E_FLAG_MSIX_ENABLED
| I40E_FLAG_MSI_ENABLED
);
3863 * i40e_clear_interrupt_scheme - Clear the current interrupt scheme settings
3864 * @pf: board private structure
3866 * We go through and clear interrupt specific resources and reset the structure
3867 * to pre-load conditions
3869 static void i40e_clear_interrupt_scheme(struct i40e_pf
*pf
)
3873 i40e_stop_misc_vector(pf
);
3874 if (pf
->flags
& I40E_FLAG_MSIX_ENABLED
) {
3875 synchronize_irq(pf
->msix_entries
[0].vector
);
3876 free_irq(pf
->msix_entries
[0].vector
, pf
);
3879 i40e_put_lump(pf
->irq_pile
, 0, I40E_PILE_VALID_BIT
-1);
3880 for (i
= 0; i
< pf
->num_alloc_vsi
; i
++)
3882 i40e_vsi_free_q_vectors(pf
->vsi
[i
]);
3883 i40e_reset_interrupt_capability(pf
);
3887 * i40e_napi_enable_all - Enable NAPI for all q_vectors in the VSI
3888 * @vsi: the VSI being configured
3890 static void i40e_napi_enable_all(struct i40e_vsi
*vsi
)
3897 for (q_idx
= 0; q_idx
< vsi
->num_q_vectors
; q_idx
++)
3898 napi_enable(&vsi
->q_vectors
[q_idx
]->napi
);
3902 * i40e_napi_disable_all - Disable NAPI for all q_vectors in the VSI
3903 * @vsi: the VSI being configured
3905 static void i40e_napi_disable_all(struct i40e_vsi
*vsi
)
3912 for (q_idx
= 0; q_idx
< vsi
->num_q_vectors
; q_idx
++)
3913 napi_disable(&vsi
->q_vectors
[q_idx
]->napi
);
3917 * i40e_vsi_close - Shut down a VSI
3918 * @vsi: the vsi to be quelled
3920 static void i40e_vsi_close(struct i40e_vsi
*vsi
)
3922 if (!test_and_set_bit(__I40E_DOWN
, &vsi
->state
))
3924 i40e_vsi_free_irq(vsi
);
3925 i40e_vsi_free_tx_resources(vsi
);
3926 i40e_vsi_free_rx_resources(vsi
);
3930 * i40e_quiesce_vsi - Pause a given VSI
3931 * @vsi: the VSI being paused
3933 static void i40e_quiesce_vsi(struct i40e_vsi
*vsi
)
3935 if (test_bit(__I40E_DOWN
, &vsi
->state
))
3938 /* No need to disable FCoE VSI when Tx suspended */
3939 if ((test_bit(__I40E_PORT_TX_SUSPENDED
, &vsi
->back
->state
)) &&
3940 vsi
->type
== I40E_VSI_FCOE
) {
3941 dev_dbg(&vsi
->back
->pdev
->dev
,
3942 "%s: VSI seid %d skipping FCoE VSI disable\n",
3943 __func__
, vsi
->seid
);
3947 set_bit(__I40E_NEEDS_RESTART
, &vsi
->state
);
3948 if (vsi
->netdev
&& netif_running(vsi
->netdev
)) {
3949 vsi
->netdev
->netdev_ops
->ndo_stop(vsi
->netdev
);
3951 i40e_vsi_close(vsi
);
3956 * i40e_unquiesce_vsi - Resume a given VSI
3957 * @vsi: the VSI being resumed
3959 static void i40e_unquiesce_vsi(struct i40e_vsi
*vsi
)
3961 if (!test_bit(__I40E_NEEDS_RESTART
, &vsi
->state
))
3964 clear_bit(__I40E_NEEDS_RESTART
, &vsi
->state
);
3965 if (vsi
->netdev
&& netif_running(vsi
->netdev
))
3966 vsi
->netdev
->netdev_ops
->ndo_open(vsi
->netdev
);
3968 i40e_vsi_open(vsi
); /* this clears the DOWN bit */
3972 * i40e_pf_quiesce_all_vsi - Pause all VSIs on a PF
3975 static void i40e_pf_quiesce_all_vsi(struct i40e_pf
*pf
)
3979 for (v
= 0; v
< pf
->num_alloc_vsi
; v
++) {
3981 i40e_quiesce_vsi(pf
->vsi
[v
]);
3986 * i40e_pf_unquiesce_all_vsi - Resume all VSIs on a PF
3989 static void i40e_pf_unquiesce_all_vsi(struct i40e_pf
*pf
)
3993 for (v
= 0; v
< pf
->num_alloc_vsi
; v
++) {
3995 i40e_unquiesce_vsi(pf
->vsi
[v
]);
3999 #ifdef CONFIG_I40E_DCB
4001 * i40e_vsi_wait_txq_disabled - Wait for VSI's queues to be disabled
4002 * @vsi: the VSI being configured
4004 * This function waits for the given VSI's Tx queues to be disabled.
4006 static int i40e_vsi_wait_txq_disabled(struct i40e_vsi
*vsi
)
4008 struct i40e_pf
*pf
= vsi
->back
;
4011 pf_q
= vsi
->base_queue
;
4012 for (i
= 0; i
< vsi
->num_queue_pairs
; i
++, pf_q
++) {
4013 /* Check and wait for the disable status of the queue */
4014 ret
= i40e_pf_txq_wait(pf
, pf_q
, false);
4016 dev_info(&pf
->pdev
->dev
,
4017 "%s: VSI seid %d Tx ring %d disable timeout\n",
4018 __func__
, vsi
->seid
, pf_q
);
4027 * i40e_pf_wait_txq_disabled - Wait for all queues of PF VSIs to be disabled
4030 * This function waits for the Tx queues to be in disabled state for all the
4031 * VSIs that are managed by this PF.
4033 static int i40e_pf_wait_txq_disabled(struct i40e_pf
*pf
)
4037 for (v
= 0; v
< pf
->hw
.func_caps
.num_vsis
; v
++) {
4038 /* No need to wait for FCoE VSI queues */
4039 if (pf
->vsi
[v
] && pf
->vsi
[v
]->type
!= I40E_VSI_FCOE
) {
4040 ret
= i40e_vsi_wait_txq_disabled(pf
->vsi
[v
]);
4051 * i40e_get_iscsi_tc_map - Return TC map for iSCSI APP
4052 * @pf: pointer to PF
4054 * Get TC map for ISCSI PF type that will include iSCSI TC
4057 static u8
i40e_get_iscsi_tc_map(struct i40e_pf
*pf
)
4059 struct i40e_dcb_app_priority_table app
;
4060 struct i40e_hw
*hw
= &pf
->hw
;
4061 u8 enabled_tc
= 1; /* TC0 is always enabled */
4063 /* Get the iSCSI APP TLV */
4064 struct i40e_dcbx_config
*dcbcfg
= &hw
->local_dcbx_config
;
4066 for (i
= 0; i
< dcbcfg
->numapps
; i
++) {
4067 app
= dcbcfg
->app
[i
];
4068 if (app
.selector
== I40E_APP_SEL_TCPIP
&&
4069 app
.protocolid
== I40E_APP_PROTOID_ISCSI
) {
4070 tc
= dcbcfg
->etscfg
.prioritytable
[app
.priority
];
4071 enabled_tc
|= (1 << tc
);
4080 * i40e_dcb_get_num_tc - Get the number of TCs from DCBx config
4081 * @dcbcfg: the corresponding DCBx configuration structure
4083 * Return the number of TCs from given DCBx configuration
4085 static u8
i40e_dcb_get_num_tc(struct i40e_dcbx_config
*dcbcfg
)
4090 /* Scan the ETS Config Priority Table to find
4091 * traffic class enabled for a given priority
4092 * and use the traffic class index to get the
4093 * number of traffic classes enabled
4095 for (i
= 0; i
< I40E_MAX_USER_PRIORITY
; i
++) {
4096 if (dcbcfg
->etscfg
.prioritytable
[i
] > num_tc
)
4097 num_tc
= dcbcfg
->etscfg
.prioritytable
[i
];
4100 /* Traffic class index starts from zero so
4101 * increment to return the actual count
4107 * i40e_dcb_get_enabled_tc - Get enabled traffic classes
4108 * @dcbcfg: the corresponding DCBx configuration structure
4110 * Query the current DCB configuration and return the number of
4111 * traffic classes enabled from the given DCBX config
4113 static u8
i40e_dcb_get_enabled_tc(struct i40e_dcbx_config
*dcbcfg
)
4115 u8 num_tc
= i40e_dcb_get_num_tc(dcbcfg
);
4119 for (i
= 0; i
< num_tc
; i
++)
4120 enabled_tc
|= 1 << i
;
4126 * i40e_pf_get_num_tc - Get enabled traffic classes for PF
4127 * @pf: PF being queried
4129 * Return number of traffic classes enabled for the given PF
4131 static u8
i40e_pf_get_num_tc(struct i40e_pf
*pf
)
4133 struct i40e_hw
*hw
= &pf
->hw
;
4136 struct i40e_dcbx_config
*dcbcfg
= &hw
->local_dcbx_config
;
4138 /* If DCB is not enabled then always in single TC */
4139 if (!(pf
->flags
& I40E_FLAG_DCB_ENABLED
))
4142 /* SFP mode will be enabled for all TCs on port */
4143 if (!(pf
->flags
& I40E_FLAG_MFP_ENABLED
))
4144 return i40e_dcb_get_num_tc(dcbcfg
);
4146 /* MFP mode return count of enabled TCs for this PF */
4147 if (pf
->hw
.func_caps
.iscsi
)
4148 enabled_tc
= i40e_get_iscsi_tc_map(pf
);
4150 return 1; /* Only TC0 */
4152 /* At least have TC0 */
4153 enabled_tc
= (enabled_tc
? enabled_tc
: 0x1);
4154 for (i
= 0; i
< I40E_MAX_TRAFFIC_CLASS
; i
++) {
4155 if (enabled_tc
& (1 << i
))
4162 * i40e_pf_get_default_tc - Get bitmap for first enabled TC
4163 * @pf: PF being queried
4165 * Return a bitmap for first enabled traffic class for this PF.
4167 static u8
i40e_pf_get_default_tc(struct i40e_pf
*pf
)
4169 u8 enabled_tc
= pf
->hw
.func_caps
.enabled_tcmap
;
4173 return 0x1; /* TC0 */
4175 /* Find the first enabled TC */
4176 for (i
= 0; i
< I40E_MAX_TRAFFIC_CLASS
; i
++) {
4177 if (enabled_tc
& (1 << i
))
4185 * i40e_pf_get_pf_tc_map - Get bitmap for enabled traffic classes
4186 * @pf: PF being queried
4188 * Return a bitmap for enabled traffic classes for this PF.
4190 static u8
i40e_pf_get_tc_map(struct i40e_pf
*pf
)
4192 /* If DCB is not enabled for this PF then just return default TC */
4193 if (!(pf
->flags
& I40E_FLAG_DCB_ENABLED
))
4194 return i40e_pf_get_default_tc(pf
);
4196 /* SFP mode we want PF to be enabled for all TCs */
4197 if (!(pf
->flags
& I40E_FLAG_MFP_ENABLED
))
4198 return i40e_dcb_get_enabled_tc(&pf
->hw
.local_dcbx_config
);
4200 /* MFP enabled and iSCSI PF type */
4201 if (pf
->hw
.func_caps
.iscsi
)
4202 return i40e_get_iscsi_tc_map(pf
);
4204 return i40e_pf_get_default_tc(pf
);
4208 * i40e_vsi_get_bw_info - Query VSI BW Information
4209 * @vsi: the VSI being queried
4211 * Returns 0 on success, negative value on failure
4213 static int i40e_vsi_get_bw_info(struct i40e_vsi
*vsi
)
4215 struct i40e_aqc_query_vsi_ets_sla_config_resp bw_ets_config
= {0};
4216 struct i40e_aqc_query_vsi_bw_config_resp bw_config
= {0};
4217 struct i40e_pf
*pf
= vsi
->back
;
4218 struct i40e_hw
*hw
= &pf
->hw
;
4223 /* Get the VSI level BW configuration */
4224 aq_ret
= i40e_aq_query_vsi_bw_config(hw
, vsi
->seid
, &bw_config
, NULL
);
4226 dev_info(&pf
->pdev
->dev
,
4227 "couldn't get PF vsi bw config, err %d, aq_err %d\n",
4228 aq_ret
, pf
->hw
.aq
.asq_last_status
);
4232 /* Get the VSI level BW configuration per TC */
4233 aq_ret
= i40e_aq_query_vsi_ets_sla_config(hw
, vsi
->seid
, &bw_ets_config
,
4236 dev_info(&pf
->pdev
->dev
,
4237 "couldn't get PF vsi ets bw config, err %d, aq_err %d\n",
4238 aq_ret
, pf
->hw
.aq
.asq_last_status
);
4242 if (bw_config
.tc_valid_bits
!= bw_ets_config
.tc_valid_bits
) {
4243 dev_info(&pf
->pdev
->dev
,
4244 "Enabled TCs mismatch from querying VSI BW info 0x%08x 0x%08x\n",
4245 bw_config
.tc_valid_bits
,
4246 bw_ets_config
.tc_valid_bits
);
4247 /* Still continuing */
4250 vsi
->bw_limit
= le16_to_cpu(bw_config
.port_bw_limit
);
4251 vsi
->bw_max_quanta
= bw_config
.max_bw
;
4252 tc_bw_max
= le16_to_cpu(bw_ets_config
.tc_bw_max
[0]) |
4253 (le16_to_cpu(bw_ets_config
.tc_bw_max
[1]) << 16);
4254 for (i
= 0; i
< I40E_MAX_TRAFFIC_CLASS
; i
++) {
4255 vsi
->bw_ets_share_credits
[i
] = bw_ets_config
.share_credits
[i
];
4256 vsi
->bw_ets_limit_credits
[i
] =
4257 le16_to_cpu(bw_ets_config
.credits
[i
]);
4258 /* 3 bits out of 4 for each TC */
4259 vsi
->bw_ets_max_quanta
[i
] = (u8
)((tc_bw_max
>> (i
*4)) & 0x7);
4266 * i40e_vsi_configure_bw_alloc - Configure VSI BW allocation per TC
4267 * @vsi: the VSI being configured
4268 * @enabled_tc: TC bitmap
4269 * @bw_credits: BW shared credits per TC
4271 * Returns 0 on success, negative value on failure
4273 static int i40e_vsi_configure_bw_alloc(struct i40e_vsi
*vsi
, u8 enabled_tc
,
4276 struct i40e_aqc_configure_vsi_tc_bw_data bw_data
;
4280 bw_data
.tc_valid_bits
= enabled_tc
;
4281 for (i
= 0; i
< I40E_MAX_TRAFFIC_CLASS
; i
++)
4282 bw_data
.tc_bw_credits
[i
] = bw_share
[i
];
4284 aq_ret
= i40e_aq_config_vsi_tc_bw(&vsi
->back
->hw
, vsi
->seid
, &bw_data
,
4287 dev_info(&vsi
->back
->pdev
->dev
,
4288 "AQ command Config VSI BW allocation per TC failed = %d\n",
4289 vsi
->back
->hw
.aq
.asq_last_status
);
4293 for (i
= 0; i
< I40E_MAX_TRAFFIC_CLASS
; i
++)
4294 vsi
->info
.qs_handle
[i
] = bw_data
.qs_handles
[i
];
4300 * i40e_vsi_config_netdev_tc - Setup the netdev TC configuration
4301 * @vsi: the VSI being configured
4302 * @enabled_tc: TC map to be enabled
4305 static void i40e_vsi_config_netdev_tc(struct i40e_vsi
*vsi
, u8 enabled_tc
)
4307 struct net_device
*netdev
= vsi
->netdev
;
4308 struct i40e_pf
*pf
= vsi
->back
;
4309 struct i40e_hw
*hw
= &pf
->hw
;
4312 struct i40e_dcbx_config
*dcbcfg
= &hw
->local_dcbx_config
;
4318 netdev_reset_tc(netdev
);
4322 /* Set up actual enabled TCs on the VSI */
4323 if (netdev_set_num_tc(netdev
, vsi
->tc_config
.numtc
))
4326 /* set per TC queues for the VSI */
4327 for (i
= 0; i
< I40E_MAX_TRAFFIC_CLASS
; i
++) {
4328 /* Only set TC queues for enabled tcs
4330 * e.g. For a VSI that has TC0 and TC3 enabled the
4331 * enabled_tc bitmap would be 0x00001001; the driver
4332 * will set the numtc for netdev as 2 that will be
4333 * referenced by the netdev layer as TC 0 and 1.
4335 if (vsi
->tc_config
.enabled_tc
& (1 << i
))
4336 netdev_set_tc_queue(netdev
,
4337 vsi
->tc_config
.tc_info
[i
].netdev_tc
,
4338 vsi
->tc_config
.tc_info
[i
].qcount
,
4339 vsi
->tc_config
.tc_info
[i
].qoffset
);
4342 /* Assign UP2TC map for the VSI */
4343 for (i
= 0; i
< I40E_MAX_USER_PRIORITY
; i
++) {
4344 /* Get the actual TC# for the UP */
4345 u8 ets_tc
= dcbcfg
->etscfg
.prioritytable
[i
];
4346 /* Get the mapped netdev TC# for the UP */
4347 netdev_tc
= vsi
->tc_config
.tc_info
[ets_tc
].netdev_tc
;
4348 netdev_set_prio_tc_map(netdev
, i
, netdev_tc
);
4353 * i40e_vsi_update_queue_map - Update our copy of VSi info with new queue map
4354 * @vsi: the VSI being configured
4355 * @ctxt: the ctxt buffer returned from AQ VSI update param command
4357 static void i40e_vsi_update_queue_map(struct i40e_vsi
*vsi
,
4358 struct i40e_vsi_context
*ctxt
)
4360 /* copy just the sections touched not the entire info
4361 * since not all sections are valid as returned by
4364 vsi
->info
.mapping_flags
= ctxt
->info
.mapping_flags
;
4365 memcpy(&vsi
->info
.queue_mapping
,
4366 &ctxt
->info
.queue_mapping
, sizeof(vsi
->info
.queue_mapping
));
4367 memcpy(&vsi
->info
.tc_mapping
, ctxt
->info
.tc_mapping
,
4368 sizeof(vsi
->info
.tc_mapping
));
4372 * i40e_vsi_config_tc - Configure VSI Tx Scheduler for given TC map
4373 * @vsi: VSI to be configured
4374 * @enabled_tc: TC bitmap
4376 * This configures a particular VSI for TCs that are mapped to the
4377 * given TC bitmap. It uses default bandwidth share for TCs across
4378 * VSIs to configure TC for a particular VSI.
4381 * It is expected that the VSI queues have been quisced before calling
4384 static int i40e_vsi_config_tc(struct i40e_vsi
*vsi
, u8 enabled_tc
)
4386 u8 bw_share
[I40E_MAX_TRAFFIC_CLASS
] = {0};
4387 struct i40e_vsi_context ctxt
;
4391 /* Check if enabled_tc is same as existing or new TCs */
4392 if (vsi
->tc_config
.enabled_tc
== enabled_tc
)
4395 /* Enable ETS TCs with equal BW Share for now across all VSIs */
4396 for (i
= 0; i
< I40E_MAX_TRAFFIC_CLASS
; i
++) {
4397 if (enabled_tc
& (1 << i
))
4401 ret
= i40e_vsi_configure_bw_alloc(vsi
, enabled_tc
, bw_share
);
4403 dev_info(&vsi
->back
->pdev
->dev
,
4404 "Failed configuring TC map %d for VSI %d\n",
4405 enabled_tc
, vsi
->seid
);
4409 /* Update Queue Pairs Mapping for currently enabled UPs */
4410 ctxt
.seid
= vsi
->seid
;
4411 ctxt
.pf_num
= vsi
->back
->hw
.pf_id
;
4413 ctxt
.uplink_seid
= vsi
->uplink_seid
;
4414 ctxt
.info
= vsi
->info
;
4415 i40e_vsi_setup_queue_map(vsi
, &ctxt
, enabled_tc
, false);
4417 /* Update the VSI after updating the VSI queue-mapping information */
4418 ret
= i40e_aq_update_vsi_params(&vsi
->back
->hw
, &ctxt
, NULL
);
4420 dev_info(&vsi
->back
->pdev
->dev
,
4421 "update vsi failed, aq_err=%d\n",
4422 vsi
->back
->hw
.aq
.asq_last_status
);
4425 /* update the local VSI info with updated queue map */
4426 i40e_vsi_update_queue_map(vsi
, &ctxt
);
4427 vsi
->info
.valid_sections
= 0;
4429 /* Update current VSI BW information */
4430 ret
= i40e_vsi_get_bw_info(vsi
);
4432 dev_info(&vsi
->back
->pdev
->dev
,
4433 "Failed updating vsi bw info, aq_err=%d\n",
4434 vsi
->back
->hw
.aq
.asq_last_status
);
4438 /* Update the netdev TC setup */
4439 i40e_vsi_config_netdev_tc(vsi
, enabled_tc
);
4445 * i40e_veb_config_tc - Configure TCs for given VEB
4447 * @enabled_tc: TC bitmap
4449 * Configures given TC bitmap for VEB (switching) element
4451 int i40e_veb_config_tc(struct i40e_veb
*veb
, u8 enabled_tc
)
4453 struct i40e_aqc_configure_switching_comp_bw_config_data bw_data
= {0};
4454 struct i40e_pf
*pf
= veb
->pf
;
4458 /* No TCs or already enabled TCs just return */
4459 if (!enabled_tc
|| veb
->enabled_tc
== enabled_tc
)
4462 bw_data
.tc_valid_bits
= enabled_tc
;
4463 /* bw_data.absolute_credits is not set (relative) */
4465 /* Enable ETS TCs with equal BW Share for now */
4466 for (i
= 0; i
< I40E_MAX_TRAFFIC_CLASS
; i
++) {
4467 if (enabled_tc
& (1 << i
))
4468 bw_data
.tc_bw_share_credits
[i
] = 1;
4471 ret
= i40e_aq_config_switch_comp_bw_config(&pf
->hw
, veb
->seid
,
4474 dev_info(&pf
->pdev
->dev
,
4475 "veb bw config failed, aq_err=%d\n",
4476 pf
->hw
.aq
.asq_last_status
);
4480 /* Update the BW information */
4481 ret
= i40e_veb_get_bw_info(veb
);
4483 dev_info(&pf
->pdev
->dev
,
4484 "Failed getting veb bw config, aq_err=%d\n",
4485 pf
->hw
.aq
.asq_last_status
);
4492 #ifdef CONFIG_I40E_DCB
4494 * i40e_dcb_reconfigure - Reconfigure all VEBs and VSIs
4497 * Reconfigure VEB/VSIs on a given PF; it is assumed that
4498 * the caller would've quiesce all the VSIs before calling
4501 static void i40e_dcb_reconfigure(struct i40e_pf
*pf
)
4507 /* Enable the TCs available on PF to all VEBs */
4508 tc_map
= i40e_pf_get_tc_map(pf
);
4509 for (v
= 0; v
< I40E_MAX_VEB
; v
++) {
4512 ret
= i40e_veb_config_tc(pf
->veb
[v
], tc_map
);
4514 dev_info(&pf
->pdev
->dev
,
4515 "Failed configuring TC for VEB seid=%d\n",
4517 /* Will try to configure as many components */
4521 /* Update each VSI */
4522 for (v
= 0; v
< pf
->num_alloc_vsi
; v
++) {
4526 /* - Enable all TCs for the LAN VSI
4528 * - For FCoE VSI only enable the TC configured
4529 * as per the APP TLV
4531 * - For all others keep them at TC0 for now
4533 if (v
== pf
->lan_vsi
)
4534 tc_map
= i40e_pf_get_tc_map(pf
);
4536 tc_map
= i40e_pf_get_default_tc(pf
);
4538 if (pf
->vsi
[v
]->type
== I40E_VSI_FCOE
)
4539 tc_map
= i40e_get_fcoe_tc_map(pf
);
4540 #endif /* #ifdef I40E_FCOE */
4542 ret
= i40e_vsi_config_tc(pf
->vsi
[v
], tc_map
);
4544 dev_info(&pf
->pdev
->dev
,
4545 "Failed configuring TC for VSI seid=%d\n",
4547 /* Will try to configure as many components */
4549 /* Re-configure VSI vectors based on updated TC map */
4550 i40e_vsi_map_rings_to_vectors(pf
->vsi
[v
]);
4551 if (pf
->vsi
[v
]->netdev
)
4552 i40e_dcbnl_set_all(pf
->vsi
[v
]);
4558 * i40e_resume_port_tx - Resume port Tx
4561 * Resume a port's Tx and issue a PF reset in case of failure to
4564 static int i40e_resume_port_tx(struct i40e_pf
*pf
)
4566 struct i40e_hw
*hw
= &pf
->hw
;
4569 ret
= i40e_aq_resume_port_tx(hw
, NULL
);
4571 dev_info(&pf
->pdev
->dev
,
4572 "AQ command Resume Port Tx failed = %d\n",
4573 pf
->hw
.aq
.asq_last_status
);
4574 /* Schedule PF reset to recover */
4575 set_bit(__I40E_PF_RESET_REQUESTED
, &pf
->state
);
4576 i40e_service_event_schedule(pf
);
4583 * i40e_init_pf_dcb - Initialize DCB configuration
4584 * @pf: PF being configured
4586 * Query the current DCB configuration and cache it
4587 * in the hardware structure
4589 static int i40e_init_pf_dcb(struct i40e_pf
*pf
)
4591 struct i40e_hw
*hw
= &pf
->hw
;
4594 /* Do not enable DCB for SW1 and SW2 images even if the FW is capable */
4595 if (((pf
->hw
.aq
.fw_maj_ver
== 4) && (pf
->hw
.aq
.fw_min_ver
< 33)) ||
4596 (pf
->hw
.aq
.fw_maj_ver
< 4))
4599 /* Get the initial DCB configuration */
4600 err
= i40e_init_dcb(hw
);
4602 /* Device/Function is not DCBX capable */
4603 if ((!hw
->func_caps
.dcb
) ||
4604 (hw
->dcbx_status
== I40E_DCBX_STATUS_DISABLED
)) {
4605 dev_info(&pf
->pdev
->dev
,
4606 "DCBX offload is not supported or is disabled for this PF.\n");
4608 if (pf
->flags
& I40E_FLAG_MFP_ENABLED
)
4612 /* When status is not DISABLED then DCBX in FW */
4613 pf
->dcbx_cap
= DCB_CAP_DCBX_LLD_MANAGED
|
4614 DCB_CAP_DCBX_VER_IEEE
;
4616 pf
->flags
|= I40E_FLAG_DCB_CAPABLE
;
4617 /* Enable DCB tagging only when more than one TC */
4618 if (i40e_dcb_get_num_tc(&hw
->local_dcbx_config
) > 1)
4619 pf
->flags
|= I40E_FLAG_DCB_ENABLED
;
4620 dev_dbg(&pf
->pdev
->dev
,
4621 "DCBX offload is supported for this PF.\n");
4624 dev_info(&pf
->pdev
->dev
,
4625 "AQ Querying DCB configuration failed: aq_err %d\n",
4626 pf
->hw
.aq
.asq_last_status
);
4632 #endif /* CONFIG_I40E_DCB */
4633 #define SPEED_SIZE 14
4636 * i40e_print_link_message - print link up or down
4637 * @vsi: the VSI for which link needs a message
4639 static void i40e_print_link_message(struct i40e_vsi
*vsi
, bool isup
)
4641 char speed
[SPEED_SIZE
] = "Unknown";
4642 char fc
[FC_SIZE
] = "RX/TX";
4645 netdev_info(vsi
->netdev
, "NIC Link is Down\n");
4649 /* Warn user if link speed on NPAR enabled partition is not at
4652 if (vsi
->back
->hw
.func_caps
.npar_enable
&&
4653 (vsi
->back
->hw
.phy
.link_info
.link_speed
== I40E_LINK_SPEED_1GB
||
4654 vsi
->back
->hw
.phy
.link_info
.link_speed
== I40E_LINK_SPEED_100MB
))
4655 netdev_warn(vsi
->netdev
,
4656 "The partition detected link speed that is less than 10Gbps\n");
4658 switch (vsi
->back
->hw
.phy
.link_info
.link_speed
) {
4659 case I40E_LINK_SPEED_40GB
:
4660 strlcpy(speed
, "40 Gbps", SPEED_SIZE
);
4662 case I40E_LINK_SPEED_20GB
:
4663 strncpy(speed
, "20 Gbps", SPEED_SIZE
);
4665 case I40E_LINK_SPEED_10GB
:
4666 strlcpy(speed
, "10 Gbps", SPEED_SIZE
);
4668 case I40E_LINK_SPEED_1GB
:
4669 strlcpy(speed
, "1000 Mbps", SPEED_SIZE
);
4671 case I40E_LINK_SPEED_100MB
:
4672 strncpy(speed
, "100 Mbps", SPEED_SIZE
);
4678 switch (vsi
->back
->hw
.fc
.current_mode
) {
4680 strlcpy(fc
, "RX/TX", FC_SIZE
);
4682 case I40E_FC_TX_PAUSE
:
4683 strlcpy(fc
, "TX", FC_SIZE
);
4685 case I40E_FC_RX_PAUSE
:
4686 strlcpy(fc
, "RX", FC_SIZE
);
4689 strlcpy(fc
, "None", FC_SIZE
);
4693 netdev_info(vsi
->netdev
, "NIC Link is Up %s Full Duplex, Flow Control: %s\n",
4698 * i40e_up_complete - Finish the last steps of bringing up a connection
4699 * @vsi: the VSI being configured
4701 static int i40e_up_complete(struct i40e_vsi
*vsi
)
4703 struct i40e_pf
*pf
= vsi
->back
;
4706 if (pf
->flags
& I40E_FLAG_MSIX_ENABLED
)
4707 i40e_vsi_configure_msix(vsi
);
4709 i40e_configure_msi_and_legacy(vsi
);
4712 err
= i40e_vsi_control_rings(vsi
, true);
4716 clear_bit(__I40E_DOWN
, &vsi
->state
);
4717 i40e_napi_enable_all(vsi
);
4718 i40e_vsi_enable_irq(vsi
);
4720 if ((pf
->hw
.phy
.link_info
.link_info
& I40E_AQ_LINK_UP
) &&
4722 i40e_print_link_message(vsi
, true);
4723 netif_tx_start_all_queues(vsi
->netdev
);
4724 netif_carrier_on(vsi
->netdev
);
4725 } else if (vsi
->netdev
) {
4726 i40e_print_link_message(vsi
, false);
4727 /* need to check for qualified module here*/
4728 if ((pf
->hw
.phy
.link_info
.link_info
&
4729 I40E_AQ_MEDIA_AVAILABLE
) &&
4730 (!(pf
->hw
.phy
.link_info
.an_info
&
4731 I40E_AQ_QUALIFIED_MODULE
)))
4732 netdev_err(vsi
->netdev
,
4733 "the driver failed to link because an unqualified module was detected.");
4736 /* replay FDIR SB filters */
4737 if (vsi
->type
== I40E_VSI_FDIR
) {
4738 /* reset fd counters */
4739 pf
->fd_add_err
= pf
->fd_atr_cnt
= 0;
4740 if (pf
->fd_tcp_rule
> 0) {
4741 pf
->flags
&= ~I40E_FLAG_FD_ATR_ENABLED
;
4742 dev_info(&pf
->pdev
->dev
, "Forcing ATR off, sideband rules for TCP/IPv4 exist\n");
4743 pf
->fd_tcp_rule
= 0;
4745 i40e_fdir_filter_restore(vsi
);
4747 i40e_service_event_schedule(pf
);
4753 * i40e_vsi_reinit_locked - Reset the VSI
4754 * @vsi: the VSI being configured
4756 * Rebuild the ring structs after some configuration
4757 * has changed, e.g. MTU size.
4759 static void i40e_vsi_reinit_locked(struct i40e_vsi
*vsi
)
4761 struct i40e_pf
*pf
= vsi
->back
;
4763 WARN_ON(in_interrupt());
4764 while (test_and_set_bit(__I40E_CONFIG_BUSY
, &pf
->state
))
4765 usleep_range(1000, 2000);
4768 /* Give a VF some time to respond to the reset. The
4769 * two second wait is based upon the watchdog cycle in
4772 if (vsi
->type
== I40E_VSI_SRIOV
)
4775 clear_bit(__I40E_CONFIG_BUSY
, &pf
->state
);
4779 * i40e_up - Bring the connection back up after being down
4780 * @vsi: the VSI being configured
4782 int i40e_up(struct i40e_vsi
*vsi
)
4786 err
= i40e_vsi_configure(vsi
);
4788 err
= i40e_up_complete(vsi
);
4794 * i40e_down - Shutdown the connection processing
4795 * @vsi: the VSI being stopped
4797 void i40e_down(struct i40e_vsi
*vsi
)
4801 /* It is assumed that the caller of this function
4802 * sets the vsi->state __I40E_DOWN bit.
4805 netif_carrier_off(vsi
->netdev
);
4806 netif_tx_disable(vsi
->netdev
);
4808 i40e_vsi_disable_irq(vsi
);
4809 i40e_vsi_control_rings(vsi
, false);
4810 i40e_napi_disable_all(vsi
);
4812 for (i
= 0; i
< vsi
->num_queue_pairs
; i
++) {
4813 i40e_clean_tx_ring(vsi
->tx_rings
[i
]);
4814 i40e_clean_rx_ring(vsi
->rx_rings
[i
]);
4819 * i40e_setup_tc - configure multiple traffic classes
4820 * @netdev: net device to configure
4821 * @tc: number of traffic classes to enable
4824 int i40e_setup_tc(struct net_device
*netdev
, u8 tc
)
4826 static int i40e_setup_tc(struct net_device
*netdev
, u8 tc
)
4829 struct i40e_netdev_priv
*np
= netdev_priv(netdev
);
4830 struct i40e_vsi
*vsi
= np
->vsi
;
4831 struct i40e_pf
*pf
= vsi
->back
;
4836 /* Check if DCB enabled to continue */
4837 if (!(pf
->flags
& I40E_FLAG_DCB_ENABLED
)) {
4838 netdev_info(netdev
, "DCB is not enabled for adapter\n");
4842 /* Check if MFP enabled */
4843 if (pf
->flags
& I40E_FLAG_MFP_ENABLED
) {
4844 netdev_info(netdev
, "Configuring TC not supported in MFP mode\n");
4848 /* Check whether tc count is within enabled limit */
4849 if (tc
> i40e_pf_get_num_tc(pf
)) {
4850 netdev_info(netdev
, "TC count greater than enabled on link for adapter\n");
4854 /* Generate TC map for number of tc requested */
4855 for (i
= 0; i
< tc
; i
++)
4856 enabled_tc
|= (1 << i
);
4858 /* Requesting same TC configuration as already enabled */
4859 if (enabled_tc
== vsi
->tc_config
.enabled_tc
)
4862 /* Quiesce VSI queues */
4863 i40e_quiesce_vsi(vsi
);
4865 /* Configure VSI for enabled TCs */
4866 ret
= i40e_vsi_config_tc(vsi
, enabled_tc
);
4868 netdev_info(netdev
, "Failed configuring TC for VSI seid=%d\n",
4874 i40e_unquiesce_vsi(vsi
);
4881 * i40e_open - Called when a network interface is made active
4882 * @netdev: network interface device structure
4884 * The open entry point is called when a network interface is made
4885 * active by the system (IFF_UP). At this point all resources needed
4886 * for transmit and receive operations are allocated, the interrupt
4887 * handler is registered with the OS, the netdev watchdog subtask is
4888 * enabled, and the stack is notified that the interface is ready.
4890 * Returns 0 on success, negative value on failure
4892 int i40e_open(struct net_device
*netdev
)
4894 struct i40e_netdev_priv
*np
= netdev_priv(netdev
);
4895 struct i40e_vsi
*vsi
= np
->vsi
;
4896 struct i40e_pf
*pf
= vsi
->back
;
4899 /* disallow open during test or if eeprom is broken */
4900 if (test_bit(__I40E_TESTING
, &pf
->state
) ||
4901 test_bit(__I40E_BAD_EEPROM
, &pf
->state
))
4904 netif_carrier_off(netdev
);
4906 err
= i40e_vsi_open(vsi
);
4910 /* configure global TSO hardware offload settings */
4911 wr32(&pf
->hw
, I40E_GLLAN_TSOMSK_F
, be32_to_cpu(TCP_FLAG_PSH
|
4912 TCP_FLAG_FIN
) >> 16);
4913 wr32(&pf
->hw
, I40E_GLLAN_TSOMSK_M
, be32_to_cpu(TCP_FLAG_PSH
|
4915 TCP_FLAG_CWR
) >> 16);
4916 wr32(&pf
->hw
, I40E_GLLAN_TSOMSK_L
, be32_to_cpu(TCP_FLAG_CWR
) >> 16);
4918 #ifdef CONFIG_I40E_VXLAN
4919 vxlan_get_rx_port(netdev
);
4927 * @vsi: the VSI to open
4929 * Finish initialization of the VSI.
4931 * Returns 0 on success, negative value on failure
4933 int i40e_vsi_open(struct i40e_vsi
*vsi
)
4935 struct i40e_pf
*pf
= vsi
->back
;
4936 char int_name
[I40E_INT_NAME_STR_LEN
];
4939 /* allocate descriptors */
4940 err
= i40e_vsi_setup_tx_resources(vsi
);
4943 err
= i40e_vsi_setup_rx_resources(vsi
);
4947 err
= i40e_vsi_configure(vsi
);
4952 snprintf(int_name
, sizeof(int_name
) - 1, "%s-%s",
4953 dev_driver_string(&pf
->pdev
->dev
), vsi
->netdev
->name
);
4954 err
= i40e_vsi_request_irq(vsi
, int_name
);
4958 /* Notify the stack of the actual queue counts. */
4959 err
= netif_set_real_num_tx_queues(vsi
->netdev
,
4960 vsi
->num_queue_pairs
);
4962 goto err_set_queues
;
4964 err
= netif_set_real_num_rx_queues(vsi
->netdev
,
4965 vsi
->num_queue_pairs
);
4967 goto err_set_queues
;
4969 } else if (vsi
->type
== I40E_VSI_FDIR
) {
4970 snprintf(int_name
, sizeof(int_name
) - 1, "%s-%s:fdir",
4971 dev_driver_string(&pf
->pdev
->dev
),
4972 dev_name(&pf
->pdev
->dev
));
4973 err
= i40e_vsi_request_irq(vsi
, int_name
);
4980 err
= i40e_up_complete(vsi
);
4982 goto err_up_complete
;
4989 i40e_vsi_free_irq(vsi
);
4991 i40e_vsi_free_rx_resources(vsi
);
4993 i40e_vsi_free_tx_resources(vsi
);
4994 if (vsi
== pf
->vsi
[pf
->lan_vsi
])
4995 i40e_do_reset(pf
, (1 << __I40E_PF_RESET_REQUESTED
));
5001 * i40e_fdir_filter_exit - Cleans up the Flow Director accounting
5002 * @pf: Pointer to PF
5004 * This function destroys the hlist where all the Flow Director
5005 * filters were saved.
5007 static void i40e_fdir_filter_exit(struct i40e_pf
*pf
)
5009 struct i40e_fdir_filter
*filter
;
5010 struct hlist_node
*node2
;
5012 hlist_for_each_entry_safe(filter
, node2
,
5013 &pf
->fdir_filter_list
, fdir_node
) {
5014 hlist_del(&filter
->fdir_node
);
5017 pf
->fdir_pf_active_filters
= 0;
5021 * i40e_close - Disables a network interface
5022 * @netdev: network interface device structure
5024 * The close entry point is called when an interface is de-activated
5025 * by the OS. The hardware is still under the driver's control, but
5026 * this netdev interface is disabled.
5028 * Returns 0, this is not allowed to fail
5031 int i40e_close(struct net_device
*netdev
)
5033 static int i40e_close(struct net_device
*netdev
)
5036 struct i40e_netdev_priv
*np
= netdev_priv(netdev
);
5037 struct i40e_vsi
*vsi
= np
->vsi
;
5039 i40e_vsi_close(vsi
);
5045 * i40e_do_reset - Start a PF or Core Reset sequence
5046 * @pf: board private structure
5047 * @reset_flags: which reset is requested
5049 * The essential difference in resets is that the PF Reset
5050 * doesn't clear the packet buffers, doesn't reset the PE
5051 * firmware, and doesn't bother the other PFs on the chip.
5053 void i40e_do_reset(struct i40e_pf
*pf
, u32 reset_flags
)
5057 WARN_ON(in_interrupt());
5059 if (i40e_check_asq_alive(&pf
->hw
))
5060 i40e_vc_notify_reset(pf
);
5062 /* do the biggest reset indicated */
5063 if (reset_flags
& (1 << __I40E_GLOBAL_RESET_REQUESTED
)) {
5065 /* Request a Global Reset
5067 * This will start the chip's countdown to the actual full
5068 * chip reset event, and a warning interrupt to be sent
5069 * to all PFs, including the requestor. Our handler
5070 * for the warning interrupt will deal with the shutdown
5071 * and recovery of the switch setup.
5073 dev_dbg(&pf
->pdev
->dev
, "GlobalR requested\n");
5074 val
= rd32(&pf
->hw
, I40E_GLGEN_RTRIG
);
5075 val
|= I40E_GLGEN_RTRIG_GLOBR_MASK
;
5076 wr32(&pf
->hw
, I40E_GLGEN_RTRIG
, val
);
5078 } else if (reset_flags
& (1 << __I40E_CORE_RESET_REQUESTED
)) {
5080 /* Request a Core Reset
5082 * Same as Global Reset, except does *not* include the MAC/PHY
5084 dev_dbg(&pf
->pdev
->dev
, "CoreR requested\n");
5085 val
= rd32(&pf
->hw
, I40E_GLGEN_RTRIG
);
5086 val
|= I40E_GLGEN_RTRIG_CORER_MASK
;
5087 wr32(&pf
->hw
, I40E_GLGEN_RTRIG
, val
);
5088 i40e_flush(&pf
->hw
);
5090 } else if (reset_flags
& (1 << __I40E_PF_RESET_REQUESTED
)) {
5092 /* Request a PF Reset
5094 * Resets only the PF-specific registers
5096 * This goes directly to the tear-down and rebuild of
5097 * the switch, since we need to do all the recovery as
5098 * for the Core Reset.
5100 dev_dbg(&pf
->pdev
->dev
, "PFR requested\n");
5101 i40e_handle_reset_warning(pf
);
5103 } else if (reset_flags
& (1 << __I40E_REINIT_REQUESTED
)) {
5106 /* Find the VSI(s) that requested a re-init */
5107 dev_info(&pf
->pdev
->dev
,
5108 "VSI reinit requested\n");
5109 for (v
= 0; v
< pf
->num_alloc_vsi
; v
++) {
5110 struct i40e_vsi
*vsi
= pf
->vsi
[v
];
5112 test_bit(__I40E_REINIT_REQUESTED
, &vsi
->state
)) {
5113 i40e_vsi_reinit_locked(pf
->vsi
[v
]);
5114 clear_bit(__I40E_REINIT_REQUESTED
, &vsi
->state
);
5118 /* no further action needed, so return now */
5120 } else if (reset_flags
& (1 << __I40E_DOWN_REQUESTED
)) {
5123 /* Find the VSI(s) that needs to be brought down */
5124 dev_info(&pf
->pdev
->dev
, "VSI down requested\n");
5125 for (v
= 0; v
< pf
->num_alloc_vsi
; v
++) {
5126 struct i40e_vsi
*vsi
= pf
->vsi
[v
];
5128 test_bit(__I40E_DOWN_REQUESTED
, &vsi
->state
)) {
5129 set_bit(__I40E_DOWN
, &vsi
->state
);
5131 clear_bit(__I40E_DOWN_REQUESTED
, &vsi
->state
);
5135 /* no further action needed, so return now */
5138 dev_info(&pf
->pdev
->dev
,
5139 "bad reset request 0x%08x\n", reset_flags
);
5144 #ifdef CONFIG_I40E_DCB
5146 * i40e_dcb_need_reconfig - Check if DCB needs reconfig
5147 * @pf: board private structure
5148 * @old_cfg: current DCB config
5149 * @new_cfg: new DCB config
5151 bool i40e_dcb_need_reconfig(struct i40e_pf
*pf
,
5152 struct i40e_dcbx_config
*old_cfg
,
5153 struct i40e_dcbx_config
*new_cfg
)
5155 bool need_reconfig
= false;
5157 /* Check if ETS configuration has changed */
5158 if (memcmp(&new_cfg
->etscfg
,
5160 sizeof(new_cfg
->etscfg
))) {
5161 /* If Priority Table has changed reconfig is needed */
5162 if (memcmp(&new_cfg
->etscfg
.prioritytable
,
5163 &old_cfg
->etscfg
.prioritytable
,
5164 sizeof(new_cfg
->etscfg
.prioritytable
))) {
5165 need_reconfig
= true;
5166 dev_dbg(&pf
->pdev
->dev
, "ETS UP2TC changed.\n");
5169 if (memcmp(&new_cfg
->etscfg
.tcbwtable
,
5170 &old_cfg
->etscfg
.tcbwtable
,
5171 sizeof(new_cfg
->etscfg
.tcbwtable
)))
5172 dev_dbg(&pf
->pdev
->dev
, "ETS TC BW Table changed.\n");
5174 if (memcmp(&new_cfg
->etscfg
.tsatable
,
5175 &old_cfg
->etscfg
.tsatable
,
5176 sizeof(new_cfg
->etscfg
.tsatable
)))
5177 dev_dbg(&pf
->pdev
->dev
, "ETS TSA Table changed.\n");
5180 /* Check if PFC configuration has changed */
5181 if (memcmp(&new_cfg
->pfc
,
5183 sizeof(new_cfg
->pfc
))) {
5184 need_reconfig
= true;
5185 dev_dbg(&pf
->pdev
->dev
, "PFC config change detected.\n");
5188 /* Check if APP Table has changed */
5189 if (memcmp(&new_cfg
->app
,
5191 sizeof(new_cfg
->app
))) {
5192 need_reconfig
= true;
5193 dev_dbg(&pf
->pdev
->dev
, "APP Table change detected.\n");
5196 dev_dbg(&pf
->pdev
->dev
, "%s: need_reconfig=%d\n", __func__
,
5198 return need_reconfig
;
5202 * i40e_handle_lldp_event - Handle LLDP Change MIB event
5203 * @pf: board private structure
5204 * @e: event info posted on ARQ
5206 static int i40e_handle_lldp_event(struct i40e_pf
*pf
,
5207 struct i40e_arq_event_info
*e
)
5209 struct i40e_aqc_lldp_get_mib
*mib
=
5210 (struct i40e_aqc_lldp_get_mib
*)&e
->desc
.params
.raw
;
5211 struct i40e_hw
*hw
= &pf
->hw
;
5212 struct i40e_dcbx_config tmp_dcbx_cfg
;
5213 bool need_reconfig
= false;
5217 /* Not DCB capable or capability disabled */
5218 if (!(pf
->flags
& I40E_FLAG_DCB_CAPABLE
))
5221 /* Ignore if event is not for Nearest Bridge */
5222 type
= ((mib
->type
>> I40E_AQ_LLDP_BRIDGE_TYPE_SHIFT
)
5223 & I40E_AQ_LLDP_BRIDGE_TYPE_MASK
);
5224 dev_dbg(&pf
->pdev
->dev
,
5225 "%s: LLDP event mib bridge type 0x%x\n", __func__
, type
);
5226 if (type
!= I40E_AQ_LLDP_BRIDGE_TYPE_NEAREST_BRIDGE
)
5229 /* Check MIB Type and return if event for Remote MIB update */
5230 type
= mib
->type
& I40E_AQ_LLDP_MIB_TYPE_MASK
;
5231 dev_dbg(&pf
->pdev
->dev
,
5232 "%s: LLDP event mib type %s\n", __func__
,
5233 type
? "remote" : "local");
5234 if (type
== I40E_AQ_LLDP_MIB_REMOTE
) {
5235 /* Update the remote cached instance and return */
5236 ret
= i40e_aq_get_dcb_config(hw
, I40E_AQ_LLDP_MIB_REMOTE
,
5237 I40E_AQ_LLDP_BRIDGE_TYPE_NEAREST_BRIDGE
,
5238 &hw
->remote_dcbx_config
);
5242 /* Store the old configuration */
5243 tmp_dcbx_cfg
= hw
->local_dcbx_config
;
5245 /* Reset the old DCBx configuration data */
5246 memset(&hw
->local_dcbx_config
, 0, sizeof(hw
->local_dcbx_config
));
5247 /* Get updated DCBX data from firmware */
5248 ret
= i40e_get_dcb_config(&pf
->hw
);
5250 dev_info(&pf
->pdev
->dev
, "Failed querying DCB configuration data from firmware.\n");
5254 /* No change detected in DCBX configs */
5255 if (!memcmp(&tmp_dcbx_cfg
, &hw
->local_dcbx_config
,
5256 sizeof(tmp_dcbx_cfg
))) {
5257 dev_dbg(&pf
->pdev
->dev
, "No change detected in DCBX configuration.\n");
5261 need_reconfig
= i40e_dcb_need_reconfig(pf
, &tmp_dcbx_cfg
,
5262 &hw
->local_dcbx_config
);
5264 i40e_dcbnl_flush_apps(pf
, &tmp_dcbx_cfg
, &hw
->local_dcbx_config
);
5269 /* Enable DCB tagging only when more than one TC */
5270 if (i40e_dcb_get_num_tc(&hw
->local_dcbx_config
) > 1)
5271 pf
->flags
|= I40E_FLAG_DCB_ENABLED
;
5273 pf
->flags
&= ~I40E_FLAG_DCB_ENABLED
;
5275 set_bit(__I40E_PORT_TX_SUSPENDED
, &pf
->state
);
5276 /* Reconfiguration needed quiesce all VSIs */
5277 i40e_pf_quiesce_all_vsi(pf
);
5279 /* Changes in configuration update VEB/VSI */
5280 i40e_dcb_reconfigure(pf
);
5282 ret
= i40e_resume_port_tx(pf
);
5284 clear_bit(__I40E_PORT_TX_SUSPENDED
, &pf
->state
);
5285 /* In case of error no point in resuming VSIs */
5289 /* Wait for the PF's Tx queues to be disabled */
5290 ret
= i40e_pf_wait_txq_disabled(pf
);
5292 /* Schedule PF reset to recover */
5293 set_bit(__I40E_PF_RESET_REQUESTED
, &pf
->state
);
5294 i40e_service_event_schedule(pf
);
5296 i40e_pf_unquiesce_all_vsi(pf
);
5302 #endif /* CONFIG_I40E_DCB */
5305 * i40e_do_reset_safe - Protected reset path for userland calls.
5306 * @pf: board private structure
5307 * @reset_flags: which reset is requested
5310 void i40e_do_reset_safe(struct i40e_pf
*pf
, u32 reset_flags
)
5313 i40e_do_reset(pf
, reset_flags
);
5318 * i40e_handle_lan_overflow_event - Handler for LAN queue overflow event
5319 * @pf: board private structure
5320 * @e: event info posted on ARQ
5322 * Handler for LAN Queue Overflow Event generated by the firmware for PF
5325 static void i40e_handle_lan_overflow_event(struct i40e_pf
*pf
,
5326 struct i40e_arq_event_info
*e
)
5328 struct i40e_aqc_lan_overflow
*data
=
5329 (struct i40e_aqc_lan_overflow
*)&e
->desc
.params
.raw
;
5330 u32 queue
= le32_to_cpu(data
->prtdcb_rupto
);
5331 u32 qtx_ctl
= le32_to_cpu(data
->otx_ctl
);
5332 struct i40e_hw
*hw
= &pf
->hw
;
5336 dev_dbg(&pf
->pdev
->dev
, "overflow Rx Queue Number = %d QTX_CTL=0x%08x\n",
5339 /* Queue belongs to VF, find the VF and issue VF reset */
5340 if (((qtx_ctl
& I40E_QTX_CTL_PFVF_Q_MASK
)
5341 >> I40E_QTX_CTL_PFVF_Q_SHIFT
) == I40E_QTX_CTL_VF_QUEUE
) {
5342 vf_id
= (u16
)((qtx_ctl
& I40E_QTX_CTL_VFVM_INDX_MASK
)
5343 >> I40E_QTX_CTL_VFVM_INDX_SHIFT
);
5344 vf_id
-= hw
->func_caps
.vf_base_id
;
5345 vf
= &pf
->vf
[vf_id
];
5346 i40e_vc_notify_vf_reset(vf
);
5347 /* Allow VF to process pending reset notification */
5349 i40e_reset_vf(vf
, false);
5354 * i40e_service_event_complete - Finish up the service event
5355 * @pf: board private structure
5357 static void i40e_service_event_complete(struct i40e_pf
*pf
)
5359 BUG_ON(!test_bit(__I40E_SERVICE_SCHED
, &pf
->state
));
5361 /* flush memory to make sure state is correct before next watchog */
5362 smp_mb__before_atomic();
5363 clear_bit(__I40E_SERVICE_SCHED
, &pf
->state
);
5367 * i40e_get_cur_guaranteed_fd_count - Get the consumed guaranteed FD filters
5368 * @pf: board private structure
5370 u32
i40e_get_cur_guaranteed_fd_count(struct i40e_pf
*pf
)
5374 val
= rd32(&pf
->hw
, I40E_PFQF_FDSTAT
);
5375 fcnt_prog
= (val
& I40E_PFQF_FDSTAT_GUARANT_CNT_MASK
);
5380 * i40e_get_current_fd_count - Get total FD filters programmed for this PF
5381 * @pf: board private structure
5383 u32
i40e_get_current_fd_count(struct i40e_pf
*pf
)
5387 val
= rd32(&pf
->hw
, I40E_PFQF_FDSTAT
);
5388 fcnt_prog
= (val
& I40E_PFQF_FDSTAT_GUARANT_CNT_MASK
) +
5389 ((val
& I40E_PFQF_FDSTAT_BEST_CNT_MASK
) >>
5390 I40E_PFQF_FDSTAT_BEST_CNT_SHIFT
);
5395 * i40e_get_global_fd_count - Get total FD filters programmed on device
5396 * @pf: board private structure
5398 u32
i40e_get_global_fd_count(struct i40e_pf
*pf
)
5402 val
= rd32(&pf
->hw
, I40E_GLQF_FDCNT_0
);
5403 fcnt_prog
= (val
& I40E_GLQF_FDCNT_0_GUARANT_CNT_MASK
) +
5404 ((val
& I40E_GLQF_FDCNT_0_BESTCNT_MASK
) >>
5405 I40E_GLQF_FDCNT_0_BESTCNT_SHIFT
);
5410 * i40e_fdir_check_and_reenable - Function to reenabe FD ATR or SB if disabled
5411 * @pf: board private structure
5413 void i40e_fdir_check_and_reenable(struct i40e_pf
*pf
)
5415 u32 fcnt_prog
, fcnt_avail
;
5417 if (test_bit(__I40E_FD_FLUSH_REQUESTED
, &pf
->state
))
5420 /* Check if, FD SB or ATR was auto disabled and if there is enough room
5423 fcnt_prog
= i40e_get_global_fd_count(pf
);
5424 fcnt_avail
= pf
->fdir_pf_filter_count
;
5425 if ((fcnt_prog
< (fcnt_avail
- I40E_FDIR_BUFFER_HEAD_ROOM
)) ||
5426 (pf
->fd_add_err
== 0) ||
5427 (i40e_get_current_atr_cnt(pf
) < pf
->fd_atr_cnt
)) {
5428 if ((pf
->flags
& I40E_FLAG_FD_SB_ENABLED
) &&
5429 (pf
->auto_disable_flags
& I40E_FLAG_FD_SB_ENABLED
)) {
5430 pf
->auto_disable_flags
&= ~I40E_FLAG_FD_SB_ENABLED
;
5431 dev_info(&pf
->pdev
->dev
, "FD Sideband/ntuple is being enabled since we have space in the table now\n");
5434 /* Wait for some more space to be available to turn on ATR */
5435 if (fcnt_prog
< (fcnt_avail
- I40E_FDIR_BUFFER_HEAD_ROOM
* 2)) {
5436 if ((pf
->flags
& I40E_FLAG_FD_ATR_ENABLED
) &&
5437 (pf
->auto_disable_flags
& I40E_FLAG_FD_ATR_ENABLED
)) {
5438 pf
->auto_disable_flags
&= ~I40E_FLAG_FD_ATR_ENABLED
;
5439 dev_info(&pf
->pdev
->dev
, "ATR is being enabled since we have space in the table now\n");
5444 #define I40E_MIN_FD_FLUSH_INTERVAL 10
5445 #define I40E_MIN_FD_FLUSH_SB_ATR_UNSTABLE 30
5447 * i40e_fdir_flush_and_replay - Function to flush all FD filters and replay SB
5448 * @pf: board private structure
5450 static void i40e_fdir_flush_and_replay(struct i40e_pf
*pf
)
5452 unsigned long min_flush_time
;
5453 int flush_wait_retry
= 50;
5454 bool disable_atr
= false;
5458 if (!(pf
->flags
& (I40E_FLAG_FD_SB_ENABLED
| I40E_FLAG_FD_ATR_ENABLED
)))
5461 if (time_after(jiffies
, pf
->fd_flush_timestamp
+
5462 (I40E_MIN_FD_FLUSH_INTERVAL
* HZ
))) {
5463 /* If the flush is happening too quick and we have mostly
5464 * SB rules we should not re-enable ATR for some time.
5466 min_flush_time
= pf
->fd_flush_timestamp
5467 + (I40E_MIN_FD_FLUSH_SB_ATR_UNSTABLE
* HZ
);
5468 fd_room
= pf
->fdir_pf_filter_count
- pf
->fdir_pf_active_filters
;
5470 if (!(time_after(jiffies
, min_flush_time
)) &&
5471 (fd_room
< I40E_FDIR_BUFFER_HEAD_ROOM_FOR_ATR
)) {
5472 dev_info(&pf
->pdev
->dev
, "ATR disabled, not enough FD filter space.\n");
5476 pf
->fd_flush_timestamp
= jiffies
;
5477 pf
->flags
&= ~I40E_FLAG_FD_ATR_ENABLED
;
5478 /* flush all filters */
5479 wr32(&pf
->hw
, I40E_PFQF_CTL_1
,
5480 I40E_PFQF_CTL_1_CLEARFDTABLE_MASK
);
5481 i40e_flush(&pf
->hw
);
5485 /* Check FD flush status every 5-6msec */
5486 usleep_range(5000, 6000);
5487 reg
= rd32(&pf
->hw
, I40E_PFQF_CTL_1
);
5488 if (!(reg
& I40E_PFQF_CTL_1_CLEARFDTABLE_MASK
))
5490 } while (flush_wait_retry
--);
5491 if (reg
& I40E_PFQF_CTL_1_CLEARFDTABLE_MASK
) {
5492 dev_warn(&pf
->pdev
->dev
, "FD table did not flush, needs more time\n");
5494 /* replay sideband filters */
5495 i40e_fdir_filter_restore(pf
->vsi
[pf
->lan_vsi
]);
5497 pf
->flags
|= I40E_FLAG_FD_ATR_ENABLED
;
5498 clear_bit(__I40E_FD_FLUSH_REQUESTED
, &pf
->state
);
5499 dev_info(&pf
->pdev
->dev
, "FD Filter table flushed and FD-SB replayed.\n");
5505 * i40e_get_current_atr_count - Get the count of total FD ATR filters programmed
5506 * @pf: board private structure
5508 u32
i40e_get_current_atr_cnt(struct i40e_pf
*pf
)
5510 return i40e_get_current_fd_count(pf
) - pf
->fdir_pf_active_filters
;
5513 /* We can see up to 256 filter programming desc in transit if the filters are
5514 * being applied really fast; before we see the first
5515 * filter miss error on Rx queue 0. Accumulating enough error messages before
5516 * reacting will make sure we don't cause flush too often.
5518 #define I40E_MAX_FD_PROGRAM_ERROR 256
5521 * i40e_fdir_reinit_subtask - Worker thread to reinit FDIR filter table
5522 * @pf: board private structure
5524 static void i40e_fdir_reinit_subtask(struct i40e_pf
*pf
)
5527 /* if interface is down do nothing */
5528 if (test_bit(__I40E_DOWN
, &pf
->state
))
5531 if (!(pf
->flags
& (I40E_FLAG_FD_SB_ENABLED
| I40E_FLAG_FD_ATR_ENABLED
)))
5534 if (test_bit(__I40E_FD_FLUSH_REQUESTED
, &pf
->state
))
5535 i40e_fdir_flush_and_replay(pf
);
5537 i40e_fdir_check_and_reenable(pf
);
5542 * i40e_vsi_link_event - notify VSI of a link event
5543 * @vsi: vsi to be notified
5544 * @link_up: link up or down
5546 static void i40e_vsi_link_event(struct i40e_vsi
*vsi
, bool link_up
)
5548 if (!vsi
|| test_bit(__I40E_DOWN
, &vsi
->state
))
5551 switch (vsi
->type
) {
5556 if (!vsi
->netdev
|| !vsi
->netdev_registered
)
5560 netif_carrier_on(vsi
->netdev
);
5561 netif_tx_wake_all_queues(vsi
->netdev
);
5563 netif_carrier_off(vsi
->netdev
);
5564 netif_tx_stop_all_queues(vsi
->netdev
);
5568 case I40E_VSI_SRIOV
:
5569 case I40E_VSI_VMDQ2
:
5571 case I40E_VSI_MIRROR
:
5573 /* there is no notification for other VSIs */
5579 * i40e_veb_link_event - notify elements on the veb of a link event
5580 * @veb: veb to be notified
5581 * @link_up: link up or down
5583 static void i40e_veb_link_event(struct i40e_veb
*veb
, bool link_up
)
5588 if (!veb
|| !veb
->pf
)
5592 /* depth first... */
5593 for (i
= 0; i
< I40E_MAX_VEB
; i
++)
5594 if (pf
->veb
[i
] && (pf
->veb
[i
]->uplink_seid
== veb
->seid
))
5595 i40e_veb_link_event(pf
->veb
[i
], link_up
);
5597 /* ... now the local VSIs */
5598 for (i
= 0; i
< pf
->num_alloc_vsi
; i
++)
5599 if (pf
->vsi
[i
] && (pf
->vsi
[i
]->uplink_seid
== veb
->seid
))
5600 i40e_vsi_link_event(pf
->vsi
[i
], link_up
);
5604 * i40e_link_event - Update netif_carrier status
5605 * @pf: board private structure
5607 static void i40e_link_event(struct i40e_pf
*pf
)
5609 bool new_link
, old_link
;
5610 struct i40e_vsi
*vsi
= pf
->vsi
[pf
->lan_vsi
];
5611 u8 new_link_speed
, old_link_speed
;
5613 /* set this to force the get_link_status call to refresh state */
5614 pf
->hw
.phy
.get_link_info
= true;
5616 old_link
= (pf
->hw
.phy
.link_info_old
.link_info
& I40E_AQ_LINK_UP
);
5617 new_link
= i40e_get_link_status(&pf
->hw
);
5618 old_link_speed
= pf
->hw
.phy
.link_info_old
.link_speed
;
5619 new_link_speed
= pf
->hw
.phy
.link_info
.link_speed
;
5621 if (new_link
== old_link
&&
5622 new_link_speed
== old_link_speed
&&
5623 (test_bit(__I40E_DOWN
, &vsi
->state
) ||
5624 new_link
== netif_carrier_ok(vsi
->netdev
)))
5627 if (!test_bit(__I40E_DOWN
, &vsi
->state
))
5628 i40e_print_link_message(vsi
, new_link
);
5630 /* Notify the base of the switch tree connected to
5631 * the link. Floating VEBs are not notified.
5633 if (pf
->lan_veb
!= I40E_NO_VEB
&& pf
->veb
[pf
->lan_veb
])
5634 i40e_veb_link_event(pf
->veb
[pf
->lan_veb
], new_link
);
5636 i40e_vsi_link_event(vsi
, new_link
);
5639 i40e_vc_notify_link_state(pf
);
5641 if (pf
->flags
& I40E_FLAG_PTP
)
5642 i40e_ptp_set_increment(pf
);
5646 * i40e_check_hang_subtask - Check for hung queues and dropped interrupts
5647 * @pf: board private structure
5649 * Set the per-queue flags to request a check for stuck queues in the irq
5650 * clean functions, then force interrupts to be sure the irq clean is called.
5652 static void i40e_check_hang_subtask(struct i40e_pf
*pf
)
5656 /* If we're down or resetting, just bail */
5657 if (test_bit(__I40E_DOWN
, &pf
->state
) ||
5658 test_bit(__I40E_CONFIG_BUSY
, &pf
->state
))
5661 /* for each VSI/netdev
5663 * set the check flag
5665 * force an interrupt
5667 for (v
= 0; v
< pf
->num_alloc_vsi
; v
++) {
5668 struct i40e_vsi
*vsi
= pf
->vsi
[v
];
5672 test_bit(__I40E_DOWN
, &vsi
->state
) ||
5673 (vsi
->netdev
&& !netif_carrier_ok(vsi
->netdev
)))
5676 for (i
= 0; i
< vsi
->num_queue_pairs
; i
++) {
5677 set_check_for_tx_hang(vsi
->tx_rings
[i
]);
5678 if (test_bit(__I40E_HANG_CHECK_ARMED
,
5679 &vsi
->tx_rings
[i
]->state
))
5684 if (!(pf
->flags
& I40E_FLAG_MSIX_ENABLED
)) {
5685 wr32(&vsi
->back
->hw
, I40E_PFINT_DYN_CTL0
,
5686 (I40E_PFINT_DYN_CTL0_INTENA_MASK
|
5687 I40E_PFINT_DYN_CTL0_SWINT_TRIG_MASK
|
5688 I40E_PFINT_DYN_CTL0_ITR_INDX_MASK
|
5689 I40E_PFINT_DYN_CTL0_SW_ITR_INDX_ENA_MASK
|
5690 I40E_PFINT_DYN_CTL0_SW_ITR_INDX_MASK
));
5692 u16 vec
= vsi
->base_vector
- 1;
5693 u32 val
= (I40E_PFINT_DYN_CTLN_INTENA_MASK
|
5694 I40E_PFINT_DYN_CTLN_SWINT_TRIG_MASK
|
5695 I40E_PFINT_DYN_CTLN_ITR_INDX_MASK
|
5696 I40E_PFINT_DYN_CTLN_SW_ITR_INDX_ENA_MASK
|
5697 I40E_PFINT_DYN_CTLN_SW_ITR_INDX_MASK
);
5698 for (i
= 0; i
< vsi
->num_q_vectors
; i
++, vec
++)
5699 wr32(&vsi
->back
->hw
,
5700 I40E_PFINT_DYN_CTLN(vec
), val
);
5702 i40e_flush(&vsi
->back
->hw
);
5708 * i40e_watchdog_subtask - periodic checks not using event driven response
5709 * @pf: board private structure
5711 static void i40e_watchdog_subtask(struct i40e_pf
*pf
)
5715 /* if interface is down do nothing */
5716 if (test_bit(__I40E_DOWN
, &pf
->state
) ||
5717 test_bit(__I40E_CONFIG_BUSY
, &pf
->state
))
5720 /* make sure we don't do these things too often */
5721 if (time_before(jiffies
, (pf
->service_timer_previous
+
5722 pf
->service_timer_period
)))
5724 pf
->service_timer_previous
= jiffies
;
5726 i40e_check_hang_subtask(pf
);
5727 i40e_link_event(pf
);
5729 /* Update the stats for active netdevs so the network stack
5730 * can look at updated numbers whenever it cares to
5732 for (i
= 0; i
< pf
->num_alloc_vsi
; i
++)
5733 if (pf
->vsi
[i
] && pf
->vsi
[i
]->netdev
)
5734 i40e_update_stats(pf
->vsi
[i
]);
5736 /* Update the stats for the active switching components */
5737 for (i
= 0; i
< I40E_MAX_VEB
; i
++)
5739 i40e_update_veb_stats(pf
->veb
[i
]);
5741 i40e_ptp_rx_hang(pf
->vsi
[pf
->lan_vsi
]);
5745 * i40e_reset_subtask - Set up for resetting the device and driver
5746 * @pf: board private structure
5748 static void i40e_reset_subtask(struct i40e_pf
*pf
)
5750 u32 reset_flags
= 0;
5753 if (test_bit(__I40E_REINIT_REQUESTED
, &pf
->state
)) {
5754 reset_flags
|= (1 << __I40E_REINIT_REQUESTED
);
5755 clear_bit(__I40E_REINIT_REQUESTED
, &pf
->state
);
5757 if (test_bit(__I40E_PF_RESET_REQUESTED
, &pf
->state
)) {
5758 reset_flags
|= (1 << __I40E_PF_RESET_REQUESTED
);
5759 clear_bit(__I40E_PF_RESET_REQUESTED
, &pf
->state
);
5761 if (test_bit(__I40E_CORE_RESET_REQUESTED
, &pf
->state
)) {
5762 reset_flags
|= (1 << __I40E_CORE_RESET_REQUESTED
);
5763 clear_bit(__I40E_CORE_RESET_REQUESTED
, &pf
->state
);
5765 if (test_bit(__I40E_GLOBAL_RESET_REQUESTED
, &pf
->state
)) {
5766 reset_flags
|= (1 << __I40E_GLOBAL_RESET_REQUESTED
);
5767 clear_bit(__I40E_GLOBAL_RESET_REQUESTED
, &pf
->state
);
5769 if (test_bit(__I40E_DOWN_REQUESTED
, &pf
->state
)) {
5770 reset_flags
|= (1 << __I40E_DOWN_REQUESTED
);
5771 clear_bit(__I40E_DOWN_REQUESTED
, &pf
->state
);
5774 /* If there's a recovery already waiting, it takes
5775 * precedence before starting a new reset sequence.
5777 if (test_bit(__I40E_RESET_INTR_RECEIVED
, &pf
->state
)) {
5778 i40e_handle_reset_warning(pf
);
5782 /* If we're already down or resetting, just bail */
5784 !test_bit(__I40E_DOWN
, &pf
->state
) &&
5785 !test_bit(__I40E_CONFIG_BUSY
, &pf
->state
))
5786 i40e_do_reset(pf
, reset_flags
);
5793 * i40e_handle_link_event - Handle link event
5794 * @pf: board private structure
5795 * @e: event info posted on ARQ
5797 static void i40e_handle_link_event(struct i40e_pf
*pf
,
5798 struct i40e_arq_event_info
*e
)
5800 struct i40e_hw
*hw
= &pf
->hw
;
5801 struct i40e_aqc_get_link_status
*status
=
5802 (struct i40e_aqc_get_link_status
*)&e
->desc
.params
.raw
;
5804 /* save off old link status information */
5805 hw
->phy
.link_info_old
= hw
->phy
.link_info
;
5807 /* Do a new status request to re-enable LSE reporting
5808 * and load new status information into the hw struct
5809 * This completely ignores any state information
5810 * in the ARQ event info, instead choosing to always
5811 * issue the AQ update link status command.
5813 i40e_link_event(pf
);
5815 /* check for unqualified module, if link is down */
5816 if ((status
->link_info
& I40E_AQ_MEDIA_AVAILABLE
) &&
5817 (!(status
->an_info
& I40E_AQ_QUALIFIED_MODULE
)) &&
5818 (!(status
->link_info
& I40E_AQ_LINK_UP
)))
5819 dev_err(&pf
->pdev
->dev
,
5820 "The driver failed to link because an unqualified module was detected.\n");
5824 * i40e_clean_adminq_subtask - Clean the AdminQ rings
5825 * @pf: board private structure
5827 static void i40e_clean_adminq_subtask(struct i40e_pf
*pf
)
5829 struct i40e_arq_event_info event
;
5830 struct i40e_hw
*hw
= &pf
->hw
;
5837 /* Do not run clean AQ when PF reset fails */
5838 if (test_bit(__I40E_RESET_FAILED
, &pf
->state
))
5841 /* check for error indications */
5842 val
= rd32(&pf
->hw
, pf
->hw
.aq
.arq
.len
);
5844 if (val
& I40E_PF_ARQLEN_ARQVFE_MASK
) {
5845 dev_info(&pf
->pdev
->dev
, "ARQ VF Error detected\n");
5846 val
&= ~I40E_PF_ARQLEN_ARQVFE_MASK
;
5848 if (val
& I40E_PF_ARQLEN_ARQOVFL_MASK
) {
5849 dev_info(&pf
->pdev
->dev
, "ARQ Overflow Error detected\n");
5850 val
&= ~I40E_PF_ARQLEN_ARQOVFL_MASK
;
5852 if (val
& I40E_PF_ARQLEN_ARQCRIT_MASK
) {
5853 dev_info(&pf
->pdev
->dev
, "ARQ Critical Error detected\n");
5854 val
&= ~I40E_PF_ARQLEN_ARQCRIT_MASK
;
5857 wr32(&pf
->hw
, pf
->hw
.aq
.arq
.len
, val
);
5859 val
= rd32(&pf
->hw
, pf
->hw
.aq
.asq
.len
);
5861 if (val
& I40E_PF_ATQLEN_ATQVFE_MASK
) {
5862 dev_info(&pf
->pdev
->dev
, "ASQ VF Error detected\n");
5863 val
&= ~I40E_PF_ATQLEN_ATQVFE_MASK
;
5865 if (val
& I40E_PF_ATQLEN_ATQOVFL_MASK
) {
5866 dev_info(&pf
->pdev
->dev
, "ASQ Overflow Error detected\n");
5867 val
&= ~I40E_PF_ATQLEN_ATQOVFL_MASK
;
5869 if (val
& I40E_PF_ATQLEN_ATQCRIT_MASK
) {
5870 dev_info(&pf
->pdev
->dev
, "ASQ Critical Error detected\n");
5871 val
&= ~I40E_PF_ATQLEN_ATQCRIT_MASK
;
5874 wr32(&pf
->hw
, pf
->hw
.aq
.asq
.len
, val
);
5876 event
.buf_len
= I40E_MAX_AQ_BUF_SIZE
;
5877 event
.msg_buf
= kzalloc(event
.buf_len
, GFP_KERNEL
);
5882 ret
= i40e_clean_arq_element(hw
, &event
, &pending
);
5883 if (ret
== I40E_ERR_ADMIN_QUEUE_NO_WORK
)
5886 dev_info(&pf
->pdev
->dev
, "ARQ event error %d\n", ret
);
5890 opcode
= le16_to_cpu(event
.desc
.opcode
);
5893 case i40e_aqc_opc_get_link_status
:
5894 i40e_handle_link_event(pf
, &event
);
5896 case i40e_aqc_opc_send_msg_to_pf
:
5897 ret
= i40e_vc_process_vf_msg(pf
,
5898 le16_to_cpu(event
.desc
.retval
),
5899 le32_to_cpu(event
.desc
.cookie_high
),
5900 le32_to_cpu(event
.desc
.cookie_low
),
5904 case i40e_aqc_opc_lldp_update_mib
:
5905 dev_dbg(&pf
->pdev
->dev
, "ARQ: Update LLDP MIB event received\n");
5906 #ifdef CONFIG_I40E_DCB
5908 ret
= i40e_handle_lldp_event(pf
, &event
);
5910 #endif /* CONFIG_I40E_DCB */
5912 case i40e_aqc_opc_event_lan_overflow
:
5913 dev_dbg(&pf
->pdev
->dev
, "ARQ LAN queue overflow event received\n");
5914 i40e_handle_lan_overflow_event(pf
, &event
);
5916 case i40e_aqc_opc_send_msg_to_peer
:
5917 dev_info(&pf
->pdev
->dev
, "ARQ: Msg from other pf\n");
5919 case i40e_aqc_opc_nvm_erase
:
5920 case i40e_aqc_opc_nvm_update
:
5921 i40e_debug(&pf
->hw
, I40E_DEBUG_NVM
, "ARQ NVM operation completed\n");
5924 dev_info(&pf
->pdev
->dev
,
5925 "ARQ Error: Unknown event 0x%04x received\n",
5929 } while (pending
&& (i
++ < pf
->adminq_work_limit
));
5931 clear_bit(__I40E_ADMINQ_EVENT_PENDING
, &pf
->state
);
5932 /* re-enable Admin queue interrupt cause */
5933 val
= rd32(hw
, I40E_PFINT_ICR0_ENA
);
5934 val
|= I40E_PFINT_ICR0_ENA_ADMINQ_MASK
;
5935 wr32(hw
, I40E_PFINT_ICR0_ENA
, val
);
5938 kfree(event
.msg_buf
);
5942 * i40e_verify_eeprom - make sure eeprom is good to use
5943 * @pf: board private structure
5945 static void i40e_verify_eeprom(struct i40e_pf
*pf
)
5949 err
= i40e_diag_eeprom_test(&pf
->hw
);
5951 /* retry in case of garbage read */
5952 err
= i40e_diag_eeprom_test(&pf
->hw
);
5954 dev_info(&pf
->pdev
->dev
, "eeprom check failed (%d), Tx/Rx traffic disabled\n",
5956 set_bit(__I40E_BAD_EEPROM
, &pf
->state
);
5960 if (!err
&& test_bit(__I40E_BAD_EEPROM
, &pf
->state
)) {
5961 dev_info(&pf
->pdev
->dev
, "eeprom check passed, Tx/Rx traffic enabled\n");
5962 clear_bit(__I40E_BAD_EEPROM
, &pf
->state
);
5967 * i40e_enable_pf_switch_lb
5968 * @pf: pointer to the PF structure
5970 * enable switch loop back or die - no point in a return value
5972 static void i40e_enable_pf_switch_lb(struct i40e_pf
*pf
)
5974 struct i40e_vsi
*vsi
= pf
->vsi
[pf
->lan_vsi
];
5975 struct i40e_vsi_context ctxt
;
5978 ctxt
.seid
= pf
->main_vsi_seid
;
5979 ctxt
.pf_num
= pf
->hw
.pf_id
;
5981 aq_ret
= i40e_aq_get_vsi_params(&pf
->hw
, &ctxt
, NULL
);
5983 dev_info(&pf
->pdev
->dev
,
5984 "%s couldn't get PF vsi config, err %d, aq_err %d\n",
5985 __func__
, aq_ret
, pf
->hw
.aq
.asq_last_status
);
5988 ctxt
.flags
= I40E_AQ_VSI_TYPE_PF
;
5989 ctxt
.info
.valid_sections
= cpu_to_le16(I40E_AQ_VSI_PROP_SWITCH_VALID
);
5990 ctxt
.info
.switch_id
|= cpu_to_le16(I40E_AQ_VSI_SW_ID_FLAG_ALLOW_LB
);
5992 aq_ret
= i40e_aq_update_vsi_params(&vsi
->back
->hw
, &ctxt
, NULL
);
5994 dev_info(&pf
->pdev
->dev
,
5995 "%s: update vsi switch failed, aq_err=%d\n",
5996 __func__
, vsi
->back
->hw
.aq
.asq_last_status
);
6001 * i40e_disable_pf_switch_lb
6002 * @pf: pointer to the PF structure
6004 * disable switch loop back or die - no point in a return value
6006 static void i40e_disable_pf_switch_lb(struct i40e_pf
*pf
)
6008 struct i40e_vsi
*vsi
= pf
->vsi
[pf
->lan_vsi
];
6009 struct i40e_vsi_context ctxt
;
6012 ctxt
.seid
= pf
->main_vsi_seid
;
6013 ctxt
.pf_num
= pf
->hw
.pf_id
;
6015 aq_ret
= i40e_aq_get_vsi_params(&pf
->hw
, &ctxt
, NULL
);
6017 dev_info(&pf
->pdev
->dev
,
6018 "%s couldn't get PF vsi config, err %d, aq_err %d\n",
6019 __func__
, aq_ret
, pf
->hw
.aq
.asq_last_status
);
6022 ctxt
.flags
= I40E_AQ_VSI_TYPE_PF
;
6023 ctxt
.info
.valid_sections
= cpu_to_le16(I40E_AQ_VSI_PROP_SWITCH_VALID
);
6024 ctxt
.info
.switch_id
&= ~cpu_to_le16(I40E_AQ_VSI_SW_ID_FLAG_ALLOW_LB
);
6026 aq_ret
= i40e_aq_update_vsi_params(&vsi
->back
->hw
, &ctxt
, NULL
);
6028 dev_info(&pf
->pdev
->dev
,
6029 "%s: update vsi switch failed, aq_err=%d\n",
6030 __func__
, vsi
->back
->hw
.aq
.asq_last_status
);
6035 * i40e_config_bridge_mode - Configure the HW bridge mode
6036 * @veb: pointer to the bridge instance
6038 * Configure the loop back mode for the LAN VSI that is downlink to the
6039 * specified HW bridge instance. It is expected this function is called
6040 * when a new HW bridge is instantiated.
6042 static void i40e_config_bridge_mode(struct i40e_veb
*veb
)
6044 struct i40e_pf
*pf
= veb
->pf
;
6046 dev_info(&pf
->pdev
->dev
, "enabling bridge mode: %s\n",
6047 veb
->bridge_mode
== BRIDGE_MODE_VEPA
? "VEPA" : "VEB");
6048 if (veb
->bridge_mode
& BRIDGE_MODE_VEPA
)
6049 i40e_disable_pf_switch_lb(pf
);
6051 i40e_enable_pf_switch_lb(pf
);
6055 * i40e_reconstitute_veb - rebuild the VEB and anything connected to it
6056 * @veb: pointer to the VEB instance
6058 * This is a recursive function that first builds the attached VSIs then
6059 * recurses in to build the next layer of VEB. We track the connections
6060 * through our own index numbers because the seid's from the HW could
6061 * change across the reset.
6063 static int i40e_reconstitute_veb(struct i40e_veb
*veb
)
6065 struct i40e_vsi
*ctl_vsi
= NULL
;
6066 struct i40e_pf
*pf
= veb
->pf
;
6070 /* build VSI that owns this VEB, temporarily attached to base VEB */
6071 for (v
= 0; v
< pf
->num_alloc_vsi
&& !ctl_vsi
; v
++) {
6073 pf
->vsi
[v
]->veb_idx
== veb
->idx
&&
6074 pf
->vsi
[v
]->flags
& I40E_VSI_FLAG_VEB_OWNER
) {
6075 ctl_vsi
= pf
->vsi
[v
];
6080 dev_info(&pf
->pdev
->dev
,
6081 "missing owner VSI for veb_idx %d\n", veb
->idx
);
6083 goto end_reconstitute
;
6085 if (ctl_vsi
!= pf
->vsi
[pf
->lan_vsi
])
6086 ctl_vsi
->uplink_seid
= pf
->vsi
[pf
->lan_vsi
]->uplink_seid
;
6087 ret
= i40e_add_vsi(ctl_vsi
);
6089 dev_info(&pf
->pdev
->dev
,
6090 "rebuild of owner VSI failed: %d\n", ret
);
6091 goto end_reconstitute
;
6093 i40e_vsi_reset_stats(ctl_vsi
);
6095 /* create the VEB in the switch and move the VSI onto the VEB */
6096 ret
= i40e_add_veb(veb
, ctl_vsi
);
6098 goto end_reconstitute
;
6100 i40e_config_bridge_mode(veb
);
6102 /* create the remaining VSIs attached to this VEB */
6103 for (v
= 0; v
< pf
->num_alloc_vsi
; v
++) {
6104 if (!pf
->vsi
[v
] || pf
->vsi
[v
] == ctl_vsi
)
6107 if (pf
->vsi
[v
]->veb_idx
== veb
->idx
) {
6108 struct i40e_vsi
*vsi
= pf
->vsi
[v
];
6109 vsi
->uplink_seid
= veb
->seid
;
6110 ret
= i40e_add_vsi(vsi
);
6112 dev_info(&pf
->pdev
->dev
,
6113 "rebuild of vsi_idx %d failed: %d\n",
6115 goto end_reconstitute
;
6117 i40e_vsi_reset_stats(vsi
);
6121 /* create any VEBs attached to this VEB - RECURSION */
6122 for (veb_idx
= 0; veb_idx
< I40E_MAX_VEB
; veb_idx
++) {
6123 if (pf
->veb
[veb_idx
] && pf
->veb
[veb_idx
]->veb_idx
== veb
->idx
) {
6124 pf
->veb
[veb_idx
]->uplink_seid
= veb
->seid
;
6125 ret
= i40e_reconstitute_veb(pf
->veb
[veb_idx
]);
6136 * i40e_get_capabilities - get info about the HW
6137 * @pf: the PF struct
6139 static int i40e_get_capabilities(struct i40e_pf
*pf
)
6141 struct i40e_aqc_list_capabilities_element_resp
*cap_buf
;
6146 buf_len
= 40 * sizeof(struct i40e_aqc_list_capabilities_element_resp
);
6148 cap_buf
= kzalloc(buf_len
, GFP_KERNEL
);
6152 /* this loads the data into the hw struct for us */
6153 err
= i40e_aq_discover_capabilities(&pf
->hw
, cap_buf
, buf_len
,
6155 i40e_aqc_opc_list_func_capabilities
,
6157 /* data loaded, buffer no longer needed */
6160 if (pf
->hw
.aq
.asq_last_status
== I40E_AQ_RC_ENOMEM
) {
6161 /* retry with a larger buffer */
6162 buf_len
= data_size
;
6163 } else if (pf
->hw
.aq
.asq_last_status
!= I40E_AQ_RC_OK
) {
6164 dev_info(&pf
->pdev
->dev
,
6165 "capability discovery failed: aq=%d\n",
6166 pf
->hw
.aq
.asq_last_status
);
6171 if (((pf
->hw
.aq
.fw_maj_ver
== 2) && (pf
->hw
.aq
.fw_min_ver
< 22)) ||
6172 (pf
->hw
.aq
.fw_maj_ver
< 2)) {
6173 pf
->hw
.func_caps
.num_msix_vectors
++;
6174 pf
->hw
.func_caps
.num_msix_vectors_vf
++;
6177 if (pf
->hw
.debug_mask
& I40E_DEBUG_USER
)
6178 dev_info(&pf
->pdev
->dev
,
6179 "pf=%d, num_vfs=%d, msix_pf=%d, msix_vf=%d, fd_g=%d, fd_b=%d, pf_max_q=%d num_vsi=%d\n",
6180 pf
->hw
.pf_id
, pf
->hw
.func_caps
.num_vfs
,
6181 pf
->hw
.func_caps
.num_msix_vectors
,
6182 pf
->hw
.func_caps
.num_msix_vectors_vf
,
6183 pf
->hw
.func_caps
.fd_filters_guaranteed
,
6184 pf
->hw
.func_caps
.fd_filters_best_effort
,
6185 pf
->hw
.func_caps
.num_tx_qp
,
6186 pf
->hw
.func_caps
.num_vsis
);
6188 #define DEF_NUM_VSI (1 + (pf->hw.func_caps.fcoe ? 1 : 0) \
6189 + pf->hw.func_caps.num_vfs)
6190 if (pf
->hw
.revision_id
== 0 && (DEF_NUM_VSI
> pf
->hw
.func_caps
.num_vsis
)) {
6191 dev_info(&pf
->pdev
->dev
,
6192 "got num_vsis %d, setting num_vsis to %d\n",
6193 pf
->hw
.func_caps
.num_vsis
, DEF_NUM_VSI
);
6194 pf
->hw
.func_caps
.num_vsis
= DEF_NUM_VSI
;
6200 static int i40e_vsi_clear(struct i40e_vsi
*vsi
);
6203 * i40e_fdir_sb_setup - initialize the Flow Director resources for Sideband
6204 * @pf: board private structure
6206 static void i40e_fdir_sb_setup(struct i40e_pf
*pf
)
6208 struct i40e_vsi
*vsi
;
6211 /* quick workaround for an NVM issue that leaves a critical register
6214 if (!rd32(&pf
->hw
, I40E_GLQF_HKEY(0))) {
6215 static const u32 hkey
[] = {
6216 0xe640d33f, 0xcdfe98ab, 0x73fa7161, 0x0d7a7d36,
6217 0xeacb7d61, 0xaa4f05b6, 0x9c5c89ed, 0xfc425ddb,
6218 0xa4654832, 0xfc7461d4, 0x8f827619, 0xf5c63c21,
6221 for (i
= 0; i
<= I40E_GLQF_HKEY_MAX_INDEX
; i
++)
6222 wr32(&pf
->hw
, I40E_GLQF_HKEY(i
), hkey
[i
]);
6225 if (!(pf
->flags
& I40E_FLAG_FD_SB_ENABLED
))
6228 /* find existing VSI and see if it needs configuring */
6230 for (i
= 0; i
< pf
->num_alloc_vsi
; i
++) {
6231 if (pf
->vsi
[i
] && pf
->vsi
[i
]->type
== I40E_VSI_FDIR
) {
6237 /* create a new VSI if none exists */
6239 vsi
= i40e_vsi_setup(pf
, I40E_VSI_FDIR
,
6240 pf
->vsi
[pf
->lan_vsi
]->seid
, 0);
6242 dev_info(&pf
->pdev
->dev
, "Couldn't create FDir VSI\n");
6243 pf
->flags
&= ~I40E_FLAG_FD_SB_ENABLED
;
6248 i40e_vsi_setup_irqhandler(vsi
, i40e_fdir_clean_ring
);
6252 * i40e_fdir_teardown - release the Flow Director resources
6253 * @pf: board private structure
6255 static void i40e_fdir_teardown(struct i40e_pf
*pf
)
6259 i40e_fdir_filter_exit(pf
);
6260 for (i
= 0; i
< pf
->num_alloc_vsi
; i
++) {
6261 if (pf
->vsi
[i
] && pf
->vsi
[i
]->type
== I40E_VSI_FDIR
) {
6262 i40e_vsi_release(pf
->vsi
[i
]);
6269 * i40e_prep_for_reset - prep for the core to reset
6270 * @pf: board private structure
6272 * Close up the VFs and other things in prep for PF Reset.
6274 static void i40e_prep_for_reset(struct i40e_pf
*pf
)
6276 struct i40e_hw
*hw
= &pf
->hw
;
6277 i40e_status ret
= 0;
6280 clear_bit(__I40E_RESET_INTR_RECEIVED
, &pf
->state
);
6281 if (test_and_set_bit(__I40E_RESET_RECOVERY_PENDING
, &pf
->state
))
6284 dev_dbg(&pf
->pdev
->dev
, "Tearing down internal switch for reset\n");
6286 /* quiesce the VSIs and their queues that are not already DOWN */
6287 i40e_pf_quiesce_all_vsi(pf
);
6289 for (v
= 0; v
< pf
->num_alloc_vsi
; v
++) {
6291 pf
->vsi
[v
]->seid
= 0;
6294 i40e_shutdown_adminq(&pf
->hw
);
6296 /* call shutdown HMC */
6297 if (hw
->hmc
.hmc_obj
) {
6298 ret
= i40e_shutdown_lan_hmc(hw
);
6300 dev_warn(&pf
->pdev
->dev
,
6301 "shutdown_lan_hmc failed: %d\n", ret
);
6306 * i40e_send_version - update firmware with driver version
6309 static void i40e_send_version(struct i40e_pf
*pf
)
6311 struct i40e_driver_version dv
;
6313 dv
.major_version
= DRV_VERSION_MAJOR
;
6314 dv
.minor_version
= DRV_VERSION_MINOR
;
6315 dv
.build_version
= DRV_VERSION_BUILD
;
6316 dv
.subbuild_version
= 0;
6317 strlcpy(dv
.driver_string
, DRV_VERSION
, sizeof(dv
.driver_string
));
6318 i40e_aq_send_driver_version(&pf
->hw
, &dv
, NULL
);
6322 * i40e_reset_and_rebuild - reset and rebuild using a saved config
6323 * @pf: board private structure
6324 * @reinit: if the Main VSI needs to re-initialized.
6326 static void i40e_reset_and_rebuild(struct i40e_pf
*pf
, bool reinit
)
6328 struct i40e_hw
*hw
= &pf
->hw
;
6329 u8 set_fc_aq_fail
= 0;
6333 /* Now we wait for GRST to settle out.
6334 * We don't have to delete the VEBs or VSIs from the hw switch
6335 * because the reset will make them disappear.
6337 ret
= i40e_pf_reset(hw
);
6339 dev_info(&pf
->pdev
->dev
, "PF reset failed, %d\n", ret
);
6340 set_bit(__I40E_RESET_FAILED
, &pf
->state
);
6341 goto clear_recovery
;
6345 if (test_bit(__I40E_DOWN
, &pf
->state
))
6346 goto clear_recovery
;
6347 dev_dbg(&pf
->pdev
->dev
, "Rebuilding internal switch\n");
6349 /* rebuild the basics for the AdminQ, HMC, and initial HW switch */
6350 ret
= i40e_init_adminq(&pf
->hw
);
6352 dev_info(&pf
->pdev
->dev
, "Rebuild AdminQ failed, %d\n", ret
);
6353 goto clear_recovery
;
6356 /* re-verify the eeprom if we just had an EMP reset */
6357 if (test_and_clear_bit(__I40E_EMP_RESET_INTR_RECEIVED
, &pf
->state
))
6358 i40e_verify_eeprom(pf
);
6360 i40e_clear_pxe_mode(hw
);
6361 ret
= i40e_get_capabilities(pf
);
6363 dev_info(&pf
->pdev
->dev
, "i40e_get_capabilities failed, %d\n",
6365 goto end_core_reset
;
6368 ret
= i40e_init_lan_hmc(hw
, hw
->func_caps
.num_tx_qp
,
6369 hw
->func_caps
.num_rx_qp
,
6370 pf
->fcoe_hmc_cntx_num
, pf
->fcoe_hmc_filt_num
);
6372 dev_info(&pf
->pdev
->dev
, "init_lan_hmc failed: %d\n", ret
);
6373 goto end_core_reset
;
6375 ret
= i40e_configure_lan_hmc(hw
, I40E_HMC_MODEL_DIRECT_ONLY
);
6377 dev_info(&pf
->pdev
->dev
, "configure_lan_hmc failed: %d\n", ret
);
6378 goto end_core_reset
;
6381 #ifdef CONFIG_I40E_DCB
6382 ret
= i40e_init_pf_dcb(pf
);
6384 dev_info(&pf
->pdev
->dev
, "DCB init failed %d, disabled\n", ret
);
6385 pf
->flags
&= ~I40E_FLAG_DCB_CAPABLE
;
6386 /* Continue without DCB enabled */
6388 #endif /* CONFIG_I40E_DCB */
6390 ret
= i40e_init_pf_fcoe(pf
);
6392 dev_info(&pf
->pdev
->dev
, "init_pf_fcoe failed: %d\n", ret
);
6395 /* do basic switch setup */
6396 ret
= i40e_setup_pf_switch(pf
, reinit
);
6398 goto end_core_reset
;
6400 /* driver is only interested in link up/down and module qualification
6401 * reports from firmware
6403 ret
= i40e_aq_set_phy_int_mask(&pf
->hw
,
6404 I40E_AQ_EVENT_LINK_UPDOWN
|
6405 I40E_AQ_EVENT_MODULE_QUAL_FAIL
, NULL
);
6407 dev_info(&pf
->pdev
->dev
, "set phy mask fail, aq_err %d\n", ret
);
6409 /* make sure our flow control settings are restored */
6410 ret
= i40e_set_fc(&pf
->hw
, &set_fc_aq_fail
, true);
6412 dev_info(&pf
->pdev
->dev
, "set fc fail, aq_err %d\n", ret
);
6414 /* Rebuild the VSIs and VEBs that existed before reset.
6415 * They are still in our local switch element arrays, so only
6416 * need to rebuild the switch model in the HW.
6418 * If there were VEBs but the reconstitution failed, we'll try
6419 * try to recover minimal use by getting the basic PF VSI working.
6421 if (pf
->vsi
[pf
->lan_vsi
]->uplink_seid
!= pf
->mac_seid
) {
6422 dev_dbg(&pf
->pdev
->dev
, "attempting to rebuild switch\n");
6423 /* find the one VEB connected to the MAC, and find orphans */
6424 for (v
= 0; v
< I40E_MAX_VEB
; v
++) {
6428 if (pf
->veb
[v
]->uplink_seid
== pf
->mac_seid
||
6429 pf
->veb
[v
]->uplink_seid
== 0) {
6430 ret
= i40e_reconstitute_veb(pf
->veb
[v
]);
6435 /* If Main VEB failed, we're in deep doodoo,
6436 * so give up rebuilding the switch and set up
6437 * for minimal rebuild of PF VSI.
6438 * If orphan failed, we'll report the error
6439 * but try to keep going.
6441 if (pf
->veb
[v
]->uplink_seid
== pf
->mac_seid
) {
6442 dev_info(&pf
->pdev
->dev
,
6443 "rebuild of switch failed: %d, will try to set up simple PF connection\n",
6445 pf
->vsi
[pf
->lan_vsi
]->uplink_seid
6448 } else if (pf
->veb
[v
]->uplink_seid
== 0) {
6449 dev_info(&pf
->pdev
->dev
,
6450 "rebuild of orphan VEB failed: %d\n",
6457 if (pf
->vsi
[pf
->lan_vsi
]->uplink_seid
== pf
->mac_seid
) {
6458 dev_dbg(&pf
->pdev
->dev
, "attempting to rebuild PF VSI\n");
6459 /* no VEB, so rebuild only the Main VSI */
6460 ret
= i40e_add_vsi(pf
->vsi
[pf
->lan_vsi
]);
6462 dev_info(&pf
->pdev
->dev
,
6463 "rebuild of Main VSI failed: %d\n", ret
);
6464 goto end_core_reset
;
6468 if (((pf
->hw
.aq
.fw_maj_ver
== 4) && (pf
->hw
.aq
.fw_min_ver
< 33)) ||
6469 (pf
->hw
.aq
.fw_maj_ver
< 4)) {
6471 ret
= i40e_aq_set_link_restart_an(&pf
->hw
, true, NULL
);
6473 dev_info(&pf
->pdev
->dev
, "link restart failed, aq_err=%d\n",
6474 pf
->hw
.aq
.asq_last_status
);
6476 /* reinit the misc interrupt */
6477 if (pf
->flags
& I40E_FLAG_MSIX_ENABLED
)
6478 ret
= i40e_setup_misc_vector(pf
);
6480 /* restart the VSIs that were rebuilt and running before the reset */
6481 i40e_pf_unquiesce_all_vsi(pf
);
6483 if (pf
->num_alloc_vfs
) {
6484 for (v
= 0; v
< pf
->num_alloc_vfs
; v
++)
6485 i40e_reset_vf(&pf
->vf
[v
], true);
6488 /* tell the firmware that we're starting */
6489 i40e_send_version(pf
);
6492 clear_bit(__I40E_RESET_FAILED
, &pf
->state
);
6494 clear_bit(__I40E_RESET_RECOVERY_PENDING
, &pf
->state
);
6498 * i40e_handle_reset_warning - prep for the PF to reset, reset and rebuild
6499 * @pf: board private structure
6501 * Close up the VFs and other things in prep for a Core Reset,
6502 * then get ready to rebuild the world.
6504 static void i40e_handle_reset_warning(struct i40e_pf
*pf
)
6506 i40e_prep_for_reset(pf
);
6507 i40e_reset_and_rebuild(pf
, false);
6511 * i40e_handle_mdd_event
6512 * @pf: pointer to the PF structure
6514 * Called from the MDD irq handler to identify possibly malicious vfs
6516 static void i40e_handle_mdd_event(struct i40e_pf
*pf
)
6518 struct i40e_hw
*hw
= &pf
->hw
;
6519 bool mdd_detected
= false;
6520 bool pf_mdd_detected
= false;
6525 if (!test_bit(__I40E_MDD_EVENT_PENDING
, &pf
->state
))
6528 /* find what triggered the MDD event */
6529 reg
= rd32(hw
, I40E_GL_MDET_TX
);
6530 if (reg
& I40E_GL_MDET_TX_VALID_MASK
) {
6531 u8 pf_num
= (reg
& I40E_GL_MDET_TX_PF_NUM_MASK
) >>
6532 I40E_GL_MDET_TX_PF_NUM_SHIFT
;
6533 u16 vf_num
= (reg
& I40E_GL_MDET_TX_VF_NUM_MASK
) >>
6534 I40E_GL_MDET_TX_VF_NUM_SHIFT
;
6535 u8 event
= (reg
& I40E_GL_MDET_TX_EVENT_MASK
) >>
6536 I40E_GL_MDET_TX_EVENT_SHIFT
;
6537 u16 queue
= ((reg
& I40E_GL_MDET_TX_QUEUE_MASK
) >>
6538 I40E_GL_MDET_TX_QUEUE_SHIFT
) -
6539 pf
->hw
.func_caps
.base_queue
;
6540 if (netif_msg_tx_err(pf
))
6541 dev_info(&pf
->pdev
->dev
, "Malicious Driver Detection event 0x%02x on TX queue %d PF number 0x%02x VF number 0x%02x\n",
6542 event
, queue
, pf_num
, vf_num
);
6543 wr32(hw
, I40E_GL_MDET_TX
, 0xffffffff);
6544 mdd_detected
= true;
6546 reg
= rd32(hw
, I40E_GL_MDET_RX
);
6547 if (reg
& I40E_GL_MDET_RX_VALID_MASK
) {
6548 u8 func
= (reg
& I40E_GL_MDET_RX_FUNCTION_MASK
) >>
6549 I40E_GL_MDET_RX_FUNCTION_SHIFT
;
6550 u8 event
= (reg
& I40E_GL_MDET_RX_EVENT_MASK
) >>
6551 I40E_GL_MDET_RX_EVENT_SHIFT
;
6552 u16 queue
= ((reg
& I40E_GL_MDET_RX_QUEUE_MASK
) >>
6553 I40E_GL_MDET_RX_QUEUE_SHIFT
) -
6554 pf
->hw
.func_caps
.base_queue
;
6555 if (netif_msg_rx_err(pf
))
6556 dev_info(&pf
->pdev
->dev
, "Malicious Driver Detection event 0x%02x on RX queue %d of function 0x%02x\n",
6557 event
, queue
, func
);
6558 wr32(hw
, I40E_GL_MDET_RX
, 0xffffffff);
6559 mdd_detected
= true;
6563 reg
= rd32(hw
, I40E_PF_MDET_TX
);
6564 if (reg
& I40E_PF_MDET_TX_VALID_MASK
) {
6565 wr32(hw
, I40E_PF_MDET_TX
, 0xFFFF);
6566 dev_info(&pf
->pdev
->dev
, "TX driver issue detected, PF reset issued\n");
6567 pf_mdd_detected
= true;
6569 reg
= rd32(hw
, I40E_PF_MDET_RX
);
6570 if (reg
& I40E_PF_MDET_RX_VALID_MASK
) {
6571 wr32(hw
, I40E_PF_MDET_RX
, 0xFFFF);
6572 dev_info(&pf
->pdev
->dev
, "RX driver issue detected, PF reset issued\n");
6573 pf_mdd_detected
= true;
6575 /* Queue belongs to the PF, initiate a reset */
6576 if (pf_mdd_detected
) {
6577 set_bit(__I40E_PF_RESET_REQUESTED
, &pf
->state
);
6578 i40e_service_event_schedule(pf
);
6582 /* see if one of the VFs needs its hand slapped */
6583 for (i
= 0; i
< pf
->num_alloc_vfs
&& mdd_detected
; i
++) {
6585 reg
= rd32(hw
, I40E_VP_MDET_TX(i
));
6586 if (reg
& I40E_VP_MDET_TX_VALID_MASK
) {
6587 wr32(hw
, I40E_VP_MDET_TX(i
), 0xFFFF);
6588 vf
->num_mdd_events
++;
6589 dev_info(&pf
->pdev
->dev
, "TX driver issue detected on VF %d\n",
6593 reg
= rd32(hw
, I40E_VP_MDET_RX(i
));
6594 if (reg
& I40E_VP_MDET_RX_VALID_MASK
) {
6595 wr32(hw
, I40E_VP_MDET_RX(i
), 0xFFFF);
6596 vf
->num_mdd_events
++;
6597 dev_info(&pf
->pdev
->dev
, "RX driver issue detected on VF %d\n",
6601 if (vf
->num_mdd_events
> I40E_DEFAULT_NUM_MDD_EVENTS_ALLOWED
) {
6602 dev_info(&pf
->pdev
->dev
,
6603 "Too many MDD events on VF %d, disabled\n", i
);
6604 dev_info(&pf
->pdev
->dev
,
6605 "Use PF Control I/F to re-enable the VF\n");
6606 set_bit(I40E_VF_STAT_DISABLED
, &vf
->vf_states
);
6610 /* re-enable mdd interrupt cause */
6611 clear_bit(__I40E_MDD_EVENT_PENDING
, &pf
->state
);
6612 reg
= rd32(hw
, I40E_PFINT_ICR0_ENA
);
6613 reg
|= I40E_PFINT_ICR0_ENA_MAL_DETECT_MASK
;
6614 wr32(hw
, I40E_PFINT_ICR0_ENA
, reg
);
6618 #ifdef CONFIG_I40E_VXLAN
6620 * i40e_sync_vxlan_filters_subtask - Sync the VSI filter list with HW
6621 * @pf: board private structure
6623 static void i40e_sync_vxlan_filters_subtask(struct i40e_pf
*pf
)
6625 struct i40e_hw
*hw
= &pf
->hw
;
6630 if (!(pf
->flags
& I40E_FLAG_VXLAN_FILTER_SYNC
))
6633 pf
->flags
&= ~I40E_FLAG_VXLAN_FILTER_SYNC
;
6635 for (i
= 0; i
< I40E_MAX_PF_UDP_OFFLOAD_PORTS
; i
++) {
6636 if (pf
->pending_vxlan_bitmap
& (1 << i
)) {
6637 pf
->pending_vxlan_bitmap
&= ~(1 << i
);
6638 port
= pf
->vxlan_ports
[i
];
6640 ret
= i40e_aq_add_udp_tunnel(hw
, ntohs(port
),
6641 I40E_AQC_TUNNEL_TYPE_VXLAN
,
6644 ret
= i40e_aq_del_udp_tunnel(hw
, i
, NULL
);
6647 dev_info(&pf
->pdev
->dev
,
6648 "%s vxlan port %d, index %d failed, err %d, aq_err %d\n",
6649 port
? "add" : "delete",
6650 ntohs(port
), i
, ret
,
6651 pf
->hw
.aq
.asq_last_status
);
6652 pf
->vxlan_ports
[i
] = 0;
6660 * i40e_service_task - Run the driver's async subtasks
6661 * @work: pointer to work_struct containing our data
6663 static void i40e_service_task(struct work_struct
*work
)
6665 struct i40e_pf
*pf
= container_of(work
,
6668 unsigned long start_time
= jiffies
;
6670 /* don't bother with service tasks if a reset is in progress */
6671 if (test_bit(__I40E_RESET_RECOVERY_PENDING
, &pf
->state
)) {
6672 i40e_service_event_complete(pf
);
6676 i40e_reset_subtask(pf
);
6677 i40e_handle_mdd_event(pf
);
6678 i40e_vc_process_vflr_event(pf
);
6679 i40e_watchdog_subtask(pf
);
6680 i40e_fdir_reinit_subtask(pf
);
6681 i40e_sync_filters_subtask(pf
);
6682 #ifdef CONFIG_I40E_VXLAN
6683 i40e_sync_vxlan_filters_subtask(pf
);
6685 i40e_clean_adminq_subtask(pf
);
6687 i40e_service_event_complete(pf
);
6689 /* If the tasks have taken longer than one timer cycle or there
6690 * is more work to be done, reschedule the service task now
6691 * rather than wait for the timer to tick again.
6693 if (time_after(jiffies
, (start_time
+ pf
->service_timer_period
)) ||
6694 test_bit(__I40E_ADMINQ_EVENT_PENDING
, &pf
->state
) ||
6695 test_bit(__I40E_MDD_EVENT_PENDING
, &pf
->state
) ||
6696 test_bit(__I40E_VFLR_EVENT_PENDING
, &pf
->state
))
6697 i40e_service_event_schedule(pf
);
6701 * i40e_service_timer - timer callback
6702 * @data: pointer to PF struct
6704 static void i40e_service_timer(unsigned long data
)
6706 struct i40e_pf
*pf
= (struct i40e_pf
*)data
;
6708 mod_timer(&pf
->service_timer
,
6709 round_jiffies(jiffies
+ pf
->service_timer_period
));
6710 i40e_service_event_schedule(pf
);
6714 * i40e_set_num_rings_in_vsi - Determine number of rings in the VSI
6715 * @vsi: the VSI being configured
6717 static int i40e_set_num_rings_in_vsi(struct i40e_vsi
*vsi
)
6719 struct i40e_pf
*pf
= vsi
->back
;
6721 switch (vsi
->type
) {
6723 vsi
->alloc_queue_pairs
= pf
->num_lan_qps
;
6724 vsi
->num_desc
= ALIGN(I40E_DEFAULT_NUM_DESCRIPTORS
,
6725 I40E_REQ_DESCRIPTOR_MULTIPLE
);
6726 if (pf
->flags
& I40E_FLAG_MSIX_ENABLED
)
6727 vsi
->num_q_vectors
= pf
->num_lan_msix
;
6729 vsi
->num_q_vectors
= 1;
6734 vsi
->alloc_queue_pairs
= 1;
6735 vsi
->num_desc
= ALIGN(I40E_FDIR_RING_COUNT
,
6736 I40E_REQ_DESCRIPTOR_MULTIPLE
);
6737 vsi
->num_q_vectors
= 1;
6740 case I40E_VSI_VMDQ2
:
6741 vsi
->alloc_queue_pairs
= pf
->num_vmdq_qps
;
6742 vsi
->num_desc
= ALIGN(I40E_DEFAULT_NUM_DESCRIPTORS
,
6743 I40E_REQ_DESCRIPTOR_MULTIPLE
);
6744 vsi
->num_q_vectors
= pf
->num_vmdq_msix
;
6747 case I40E_VSI_SRIOV
:
6748 vsi
->alloc_queue_pairs
= pf
->num_vf_qps
;
6749 vsi
->num_desc
= ALIGN(I40E_DEFAULT_NUM_DESCRIPTORS
,
6750 I40E_REQ_DESCRIPTOR_MULTIPLE
);
6755 vsi
->alloc_queue_pairs
= pf
->num_fcoe_qps
;
6756 vsi
->num_desc
= ALIGN(I40E_DEFAULT_NUM_DESCRIPTORS
,
6757 I40E_REQ_DESCRIPTOR_MULTIPLE
);
6758 vsi
->num_q_vectors
= pf
->num_fcoe_msix
;
6761 #endif /* I40E_FCOE */
6771 * i40e_vsi_alloc_arrays - Allocate queue and vector pointer arrays for the vsi
6772 * @type: VSI pointer
6773 * @alloc_qvectors: a bool to specify if q_vectors need to be allocated.
6775 * On error: returns error code (negative)
6776 * On success: returns 0
6778 static int i40e_vsi_alloc_arrays(struct i40e_vsi
*vsi
, bool alloc_qvectors
)
6783 /* allocate memory for both Tx and Rx ring pointers */
6784 size
= sizeof(struct i40e_ring
*) * vsi
->alloc_queue_pairs
* 2;
6785 vsi
->tx_rings
= kzalloc(size
, GFP_KERNEL
);
6788 vsi
->rx_rings
= &vsi
->tx_rings
[vsi
->alloc_queue_pairs
];
6790 if (alloc_qvectors
) {
6791 /* allocate memory for q_vector pointers */
6792 size
= sizeof(struct i40e_q_vector
*) * vsi
->num_q_vectors
;
6793 vsi
->q_vectors
= kzalloc(size
, GFP_KERNEL
);
6794 if (!vsi
->q_vectors
) {
6802 kfree(vsi
->tx_rings
);
6807 * i40e_vsi_mem_alloc - Allocates the next available struct vsi in the PF
6808 * @pf: board private structure
6809 * @type: type of VSI
6811 * On error: returns error code (negative)
6812 * On success: returns vsi index in PF (positive)
6814 static int i40e_vsi_mem_alloc(struct i40e_pf
*pf
, enum i40e_vsi_type type
)
6817 struct i40e_vsi
*vsi
;
6821 /* Need to protect the allocation of the VSIs at the PF level */
6822 mutex_lock(&pf
->switch_mutex
);
6824 /* VSI list may be fragmented if VSI creation/destruction has
6825 * been happening. We can afford to do a quick scan to look
6826 * for any free VSIs in the list.
6828 * find next empty vsi slot, looping back around if necessary
6831 while (i
< pf
->num_alloc_vsi
&& pf
->vsi
[i
])
6833 if (i
>= pf
->num_alloc_vsi
) {
6835 while (i
< pf
->next_vsi
&& pf
->vsi
[i
])
6839 if (i
< pf
->num_alloc_vsi
&& !pf
->vsi
[i
]) {
6840 vsi_idx
= i
; /* Found one! */
6843 goto unlock_pf
; /* out of VSI slots! */
6847 vsi
= kzalloc(sizeof(*vsi
), GFP_KERNEL
);
6854 set_bit(__I40E_DOWN
, &vsi
->state
);
6857 vsi
->rx_itr_setting
= pf
->rx_itr_default
;
6858 vsi
->tx_itr_setting
= pf
->tx_itr_default
;
6859 vsi
->rss_table_size
= (vsi
->type
== I40E_VSI_MAIN
) ?
6860 pf
->rss_table_size
: 64;
6861 vsi
->netdev_registered
= false;
6862 vsi
->work_limit
= I40E_DEFAULT_IRQ_WORK
;
6863 INIT_LIST_HEAD(&vsi
->mac_filter_list
);
6864 vsi
->irqs_ready
= false;
6866 ret
= i40e_set_num_rings_in_vsi(vsi
);
6870 ret
= i40e_vsi_alloc_arrays(vsi
, true);
6874 /* Setup default MSIX irq handler for VSI */
6875 i40e_vsi_setup_irqhandler(vsi
, i40e_msix_clean_rings
);
6877 pf
->vsi
[vsi_idx
] = vsi
;
6882 pf
->next_vsi
= i
- 1;
6885 mutex_unlock(&pf
->switch_mutex
);
6890 * i40e_vsi_free_arrays - Free queue and vector pointer arrays for the VSI
6891 * @type: VSI pointer
6892 * @free_qvectors: a bool to specify if q_vectors need to be freed.
6894 * On error: returns error code (negative)
6895 * On success: returns 0
6897 static void i40e_vsi_free_arrays(struct i40e_vsi
*vsi
, bool free_qvectors
)
6899 /* free the ring and vector containers */
6900 if (free_qvectors
) {
6901 kfree(vsi
->q_vectors
);
6902 vsi
->q_vectors
= NULL
;
6904 kfree(vsi
->tx_rings
);
6905 vsi
->tx_rings
= NULL
;
6906 vsi
->rx_rings
= NULL
;
6910 * i40e_vsi_clear - Deallocate the VSI provided
6911 * @vsi: the VSI being un-configured
6913 static int i40e_vsi_clear(struct i40e_vsi
*vsi
)
6924 mutex_lock(&pf
->switch_mutex
);
6925 if (!pf
->vsi
[vsi
->idx
]) {
6926 dev_err(&pf
->pdev
->dev
, "pf->vsi[%d] is NULL, just free vsi[%d](%p,type %d)\n",
6927 vsi
->idx
, vsi
->idx
, vsi
, vsi
->type
);
6931 if (pf
->vsi
[vsi
->idx
] != vsi
) {
6932 dev_err(&pf
->pdev
->dev
,
6933 "pf->vsi[%d](%p, type %d) != vsi[%d](%p,type %d): no free!\n",
6934 pf
->vsi
[vsi
->idx
]->idx
,
6936 pf
->vsi
[vsi
->idx
]->type
,
6937 vsi
->idx
, vsi
, vsi
->type
);
6941 /* updates the PF for this cleared vsi */
6942 i40e_put_lump(pf
->qp_pile
, vsi
->base_queue
, vsi
->idx
);
6943 i40e_put_lump(pf
->irq_pile
, vsi
->base_vector
, vsi
->idx
);
6945 i40e_vsi_free_arrays(vsi
, true);
6947 pf
->vsi
[vsi
->idx
] = NULL
;
6948 if (vsi
->idx
< pf
->next_vsi
)
6949 pf
->next_vsi
= vsi
->idx
;
6952 mutex_unlock(&pf
->switch_mutex
);
6960 * i40e_vsi_clear_rings - Deallocates the Rx and Tx rings for the provided VSI
6961 * @vsi: the VSI being cleaned
6963 static void i40e_vsi_clear_rings(struct i40e_vsi
*vsi
)
6967 if (vsi
->tx_rings
&& vsi
->tx_rings
[0]) {
6968 for (i
= 0; i
< vsi
->alloc_queue_pairs
; i
++) {
6969 kfree_rcu(vsi
->tx_rings
[i
], rcu
);
6970 vsi
->tx_rings
[i
] = NULL
;
6971 vsi
->rx_rings
[i
] = NULL
;
6977 * i40e_alloc_rings - Allocates the Rx and Tx rings for the provided VSI
6978 * @vsi: the VSI being configured
6980 static int i40e_alloc_rings(struct i40e_vsi
*vsi
)
6982 struct i40e_ring
*tx_ring
, *rx_ring
;
6983 struct i40e_pf
*pf
= vsi
->back
;
6986 /* Set basic values in the rings to be used later during open() */
6987 for (i
= 0; i
< vsi
->alloc_queue_pairs
; i
++) {
6988 /* allocate space for both Tx and Rx in one shot */
6989 tx_ring
= kzalloc(sizeof(struct i40e_ring
) * 2, GFP_KERNEL
);
6993 tx_ring
->queue_index
= i
;
6994 tx_ring
->reg_idx
= vsi
->base_queue
+ i
;
6995 tx_ring
->ring_active
= false;
6997 tx_ring
->netdev
= vsi
->netdev
;
6998 tx_ring
->dev
= &pf
->pdev
->dev
;
6999 tx_ring
->count
= vsi
->num_desc
;
7001 tx_ring
->dcb_tc
= 0;
7002 vsi
->tx_rings
[i
] = tx_ring
;
7004 rx_ring
= &tx_ring
[1];
7005 rx_ring
->queue_index
= i
;
7006 rx_ring
->reg_idx
= vsi
->base_queue
+ i
;
7007 rx_ring
->ring_active
= false;
7009 rx_ring
->netdev
= vsi
->netdev
;
7010 rx_ring
->dev
= &pf
->pdev
->dev
;
7011 rx_ring
->count
= vsi
->num_desc
;
7013 rx_ring
->dcb_tc
= 0;
7014 if (pf
->flags
& I40E_FLAG_16BYTE_RX_DESC_ENABLED
)
7015 set_ring_16byte_desc_enabled(rx_ring
);
7017 clear_ring_16byte_desc_enabled(rx_ring
);
7018 vsi
->rx_rings
[i
] = rx_ring
;
7024 i40e_vsi_clear_rings(vsi
);
7029 * i40e_reserve_msix_vectors - Reserve MSI-X vectors in the kernel
7030 * @pf: board private structure
7031 * @vectors: the number of MSI-X vectors to request
7033 * Returns the number of vectors reserved, or error
7035 static int i40e_reserve_msix_vectors(struct i40e_pf
*pf
, int vectors
)
7037 vectors
= pci_enable_msix_range(pf
->pdev
, pf
->msix_entries
,
7038 I40E_MIN_MSIX
, vectors
);
7040 dev_info(&pf
->pdev
->dev
,
7041 "MSI-X vector reservation failed: %d\n", vectors
);
7049 * i40e_init_msix - Setup the MSIX capability
7050 * @pf: board private structure
7052 * Work with the OS to set up the MSIX vectors needed.
7054 * Returns the number of vectors reserved or negative on failure
7056 static int i40e_init_msix(struct i40e_pf
*pf
)
7058 struct i40e_hw
*hw
= &pf
->hw
;
7063 if (!(pf
->flags
& I40E_FLAG_MSIX_ENABLED
))
7066 /* The number of vectors we'll request will be comprised of:
7067 * - Add 1 for "other" cause for Admin Queue events, etc.
7068 * - The number of LAN queue pairs
7069 * - Queues being used for RSS.
7070 * We don't need as many as max_rss_size vectors.
7071 * use rss_size instead in the calculation since that
7072 * is governed by number of cpus in the system.
7073 * - assumes symmetric Tx/Rx pairing
7074 * - The number of VMDq pairs
7076 * - The number of FCOE qps.
7078 * Once we count this up, try the request.
7080 * If we can't get what we want, we'll simplify to nearly nothing
7081 * and try again. If that still fails, we punt.
7083 vectors_left
= hw
->func_caps
.num_msix_vectors
;
7086 /* reserve one vector for miscellaneous handler */
7092 /* reserve vectors for the main PF traffic queues */
7093 pf
->num_lan_msix
= min_t(int, num_online_cpus(), vectors_left
);
7094 vectors_left
-= pf
->num_lan_msix
;
7095 v_budget
+= pf
->num_lan_msix
;
7097 /* reserve one vector for sideband flow director */
7098 if (pf
->flags
& I40E_FLAG_FD_SB_ENABLED
) {
7103 pf
->flags
&= ~I40E_FLAG_FD_SB_ENABLED
;
7108 /* can we reserve enough for FCoE? */
7109 if (pf
->flags
& I40E_FLAG_FCOE_ENABLED
) {
7111 pf
->num_fcoe_msix
= 0;
7112 else if (vectors_left
>= pf
->num_fcoe_qps
)
7113 pf
->num_fcoe_msix
= pf
->num_fcoe_qps
;
7115 pf
->num_fcoe_msix
= 1;
7116 v_budget
+= pf
->num_fcoe_msix
;
7117 vectors_left
-= pf
->num_fcoe_msix
;
7121 /* any vectors left over go for VMDq support */
7122 if (pf
->flags
& I40E_FLAG_VMDQ_ENABLED
) {
7123 int vmdq_vecs_wanted
= pf
->num_vmdq_vsis
* pf
->num_vmdq_qps
;
7124 int vmdq_vecs
= min_t(int, vectors_left
, vmdq_vecs_wanted
);
7126 /* if we're short on vectors for what's desired, we limit
7127 * the queues per vmdq. If this is still more than are
7128 * available, the user will need to change the number of
7129 * queues/vectors used by the PF later with the ethtool
7132 if (vmdq_vecs
< vmdq_vecs_wanted
)
7133 pf
->num_vmdq_qps
= 1;
7134 pf
->num_vmdq_msix
= pf
->num_vmdq_qps
;
7136 v_budget
+= vmdq_vecs
;
7137 vectors_left
-= vmdq_vecs
;
7140 pf
->msix_entries
= kcalloc(v_budget
, sizeof(struct msix_entry
),
7142 if (!pf
->msix_entries
)
7145 for (i
= 0; i
< v_budget
; i
++)
7146 pf
->msix_entries
[i
].entry
= i
;
7147 v_actual
= i40e_reserve_msix_vectors(pf
, v_budget
);
7149 if (v_actual
!= v_budget
) {
7150 /* If we have limited resources, we will start with no vectors
7151 * for the special features and then allocate vectors to some
7152 * of these features based on the policy and at the end disable
7153 * the features that did not get any vectors.
7156 pf
->num_fcoe_qps
= 0;
7157 pf
->num_fcoe_msix
= 0;
7159 pf
->num_vmdq_msix
= 0;
7162 if (v_actual
< I40E_MIN_MSIX
) {
7163 pf
->flags
&= ~I40E_FLAG_MSIX_ENABLED
;
7164 kfree(pf
->msix_entries
);
7165 pf
->msix_entries
= NULL
;
7168 } else if (v_actual
== I40E_MIN_MSIX
) {
7169 /* Adjust for minimal MSIX use */
7170 pf
->num_vmdq_vsis
= 0;
7171 pf
->num_vmdq_qps
= 0;
7172 pf
->num_lan_qps
= 1;
7173 pf
->num_lan_msix
= 1;
7175 } else if (v_actual
!= v_budget
) {
7178 /* reserve the misc vector */
7181 /* Scale vector usage down */
7182 pf
->num_vmdq_msix
= 1; /* force VMDqs to only one vector */
7183 pf
->num_vmdq_vsis
= 1;
7184 pf
->num_vmdq_qps
= 1;
7185 pf
->flags
&= ~I40E_FLAG_FD_SB_ENABLED
;
7187 /* partition out the remaining vectors */
7190 pf
->num_lan_msix
= 1;
7194 /* give one vector to FCoE */
7195 if (pf
->flags
& I40E_FLAG_FCOE_ENABLED
) {
7196 pf
->num_lan_msix
= 1;
7197 pf
->num_fcoe_msix
= 1;
7200 pf
->num_lan_msix
= 2;
7205 /* give one vector to FCoE */
7206 if (pf
->flags
& I40E_FLAG_FCOE_ENABLED
) {
7207 pf
->num_fcoe_msix
= 1;
7211 /* give the rest to the PF */
7212 pf
->num_lan_msix
= min_t(int, vec
, pf
->num_lan_qps
);
7217 if ((pf
->flags
& I40E_FLAG_VMDQ_ENABLED
) &&
7218 (pf
->num_vmdq_msix
== 0)) {
7219 dev_info(&pf
->pdev
->dev
, "VMDq disabled, not enough MSI-X vectors\n");
7220 pf
->flags
&= ~I40E_FLAG_VMDQ_ENABLED
;
7224 if ((pf
->flags
& I40E_FLAG_FCOE_ENABLED
) && (pf
->num_fcoe_msix
== 0)) {
7225 dev_info(&pf
->pdev
->dev
, "FCOE disabled, not enough MSI-X vectors\n");
7226 pf
->flags
&= ~I40E_FLAG_FCOE_ENABLED
;
7233 * i40e_vsi_alloc_q_vector - Allocate memory for a single interrupt vector
7234 * @vsi: the VSI being configured
7235 * @v_idx: index of the vector in the vsi struct
7237 * We allocate one q_vector. If allocation fails we return -ENOMEM.
7239 static int i40e_vsi_alloc_q_vector(struct i40e_vsi
*vsi
, int v_idx
)
7241 struct i40e_q_vector
*q_vector
;
7243 /* allocate q_vector */
7244 q_vector
= kzalloc(sizeof(struct i40e_q_vector
), GFP_KERNEL
);
7248 q_vector
->vsi
= vsi
;
7249 q_vector
->v_idx
= v_idx
;
7250 cpumask_set_cpu(v_idx
, &q_vector
->affinity_mask
);
7252 netif_napi_add(vsi
->netdev
, &q_vector
->napi
,
7253 i40e_napi_poll
, NAPI_POLL_WEIGHT
);
7255 q_vector
->rx
.latency_range
= I40E_LOW_LATENCY
;
7256 q_vector
->tx
.latency_range
= I40E_LOW_LATENCY
;
7258 /* tie q_vector and vsi together */
7259 vsi
->q_vectors
[v_idx
] = q_vector
;
7265 * i40e_vsi_alloc_q_vectors - Allocate memory for interrupt vectors
7266 * @vsi: the VSI being configured
7268 * We allocate one q_vector per queue interrupt. If allocation fails we
7271 static int i40e_vsi_alloc_q_vectors(struct i40e_vsi
*vsi
)
7273 struct i40e_pf
*pf
= vsi
->back
;
7274 int v_idx
, num_q_vectors
;
7277 /* if not MSIX, give the one vector only to the LAN VSI */
7278 if (pf
->flags
& I40E_FLAG_MSIX_ENABLED
)
7279 num_q_vectors
= vsi
->num_q_vectors
;
7280 else if (vsi
== pf
->vsi
[pf
->lan_vsi
])
7285 for (v_idx
= 0; v_idx
< num_q_vectors
; v_idx
++) {
7286 err
= i40e_vsi_alloc_q_vector(vsi
, v_idx
);
7295 i40e_free_q_vector(vsi
, v_idx
);
7301 * i40e_init_interrupt_scheme - Determine proper interrupt scheme
7302 * @pf: board private structure to initialize
7304 static int i40e_init_interrupt_scheme(struct i40e_pf
*pf
)
7309 if (pf
->flags
& I40E_FLAG_MSIX_ENABLED
) {
7310 vectors
= i40e_init_msix(pf
);
7312 pf
->flags
&= ~(I40E_FLAG_MSIX_ENABLED
|
7314 I40E_FLAG_FCOE_ENABLED
|
7316 I40E_FLAG_RSS_ENABLED
|
7317 I40E_FLAG_DCB_CAPABLE
|
7318 I40E_FLAG_SRIOV_ENABLED
|
7319 I40E_FLAG_FD_SB_ENABLED
|
7320 I40E_FLAG_FD_ATR_ENABLED
|
7321 I40E_FLAG_VMDQ_ENABLED
);
7323 /* rework the queue expectations without MSIX */
7324 i40e_determine_queue_usage(pf
);
7328 if (!(pf
->flags
& I40E_FLAG_MSIX_ENABLED
) &&
7329 (pf
->flags
& I40E_FLAG_MSI_ENABLED
)) {
7330 dev_info(&pf
->pdev
->dev
, "MSI-X not available, trying MSI\n");
7331 vectors
= pci_enable_msi(pf
->pdev
);
7333 dev_info(&pf
->pdev
->dev
, "MSI init failed - %d\n",
7335 pf
->flags
&= ~I40E_FLAG_MSI_ENABLED
;
7337 vectors
= 1; /* one MSI or Legacy vector */
7340 if (!(pf
->flags
& (I40E_FLAG_MSIX_ENABLED
| I40E_FLAG_MSI_ENABLED
)))
7341 dev_info(&pf
->pdev
->dev
, "MSI-X and MSI not available, falling back to Legacy IRQ\n");
7343 /* set up vector assignment tracking */
7344 size
= sizeof(struct i40e_lump_tracking
) + (sizeof(u16
) * vectors
);
7345 pf
->irq_pile
= kzalloc(size
, GFP_KERNEL
);
7346 if (!pf
->irq_pile
) {
7347 dev_err(&pf
->pdev
->dev
, "error allocating irq_pile memory\n");
7350 pf
->irq_pile
->num_entries
= vectors
;
7351 pf
->irq_pile
->search_hint
= 0;
7353 /* track first vector for misc interrupts, ignore return */
7354 (void)i40e_get_lump(pf
, pf
->irq_pile
, 1, I40E_PILE_VALID_BIT
- 1);
7360 * i40e_setup_misc_vector - Setup the misc vector to handle non queue events
7361 * @pf: board private structure
7363 * This sets up the handler for MSIX 0, which is used to manage the
7364 * non-queue interrupts, e.g. AdminQ and errors. This is not used
7365 * when in MSI or Legacy interrupt mode.
7367 static int i40e_setup_misc_vector(struct i40e_pf
*pf
)
7369 struct i40e_hw
*hw
= &pf
->hw
;
7372 /* Only request the irq if this is the first time through, and
7373 * not when we're rebuilding after a Reset
7375 if (!test_bit(__I40E_RESET_RECOVERY_PENDING
, &pf
->state
)) {
7376 err
= request_irq(pf
->msix_entries
[0].vector
,
7377 i40e_intr
, 0, pf
->int_name
, pf
);
7379 dev_info(&pf
->pdev
->dev
,
7380 "request_irq for %s failed: %d\n",
7386 i40e_enable_misc_int_causes(pf
);
7388 /* associate no queues to the misc vector */
7389 wr32(hw
, I40E_PFINT_LNKLST0
, I40E_QUEUE_END_OF_LIST
);
7390 wr32(hw
, I40E_PFINT_ITR0(I40E_RX_ITR
), I40E_ITR_8K
);
7394 i40e_irq_dynamic_enable_icr0(pf
);
7400 * i40e_config_rss - Prepare for RSS if used
7401 * @pf: board private structure
7403 static int i40e_config_rss(struct i40e_pf
*pf
)
7405 u32 rss_key
[I40E_PFQF_HKEY_MAX_INDEX
+ 1];
7406 struct i40e_vsi
*vsi
= pf
->vsi
[pf
->lan_vsi
];
7407 struct i40e_hw
*hw
= &pf
->hw
;
7413 netdev_rss_key_fill(rss_key
, sizeof(rss_key
));
7414 for (i
= 0; i
<= I40E_PFQF_HKEY_MAX_INDEX
; i
++)
7415 wr32(hw
, I40E_PFQF_HKEY(i
), rss_key
[i
]);
7417 /* By default we enable TCP/UDP with IPv4/IPv6 ptypes */
7418 hena
= (u64
)rd32(hw
, I40E_PFQF_HENA(0)) |
7419 ((u64
)rd32(hw
, I40E_PFQF_HENA(1)) << 32);
7420 hena
|= I40E_DEFAULT_RSS_HENA
;
7421 wr32(hw
, I40E_PFQF_HENA(0), (u32
)hena
);
7422 wr32(hw
, I40E_PFQF_HENA(1), (u32
)(hena
>> 32));
7424 vsi
->rss_size
= min_t(int, pf
->rss_size
, vsi
->num_queue_pairs
);
7426 /* Check capability and Set table size and register per hw expectation*/
7427 reg_val
= rd32(hw
, I40E_PFQF_CTL_0
);
7428 if (pf
->rss_table_size
== 512)
7429 reg_val
|= I40E_PFQF_CTL_0_HASHLUTSIZE_512
;
7431 reg_val
&= ~I40E_PFQF_CTL_0_HASHLUTSIZE_512
;
7432 wr32(hw
, I40E_PFQF_CTL_0
, reg_val
);
7434 /* Populate the LUT with max no. of queues in round robin fashion */
7435 for (i
= 0, j
= 0; i
< pf
->rss_table_size
; i
++, j
++) {
7437 /* The assumption is that lan qp count will be the highest
7438 * qp count for any PF VSI that needs RSS.
7439 * If multiple VSIs need RSS support, all the qp counts
7440 * for those VSIs should be a power of 2 for RSS to work.
7441 * If LAN VSI is the only consumer for RSS then this requirement
7444 if (j
== vsi
->rss_size
)
7446 /* lut = 4-byte sliding window of 4 lut entries */
7447 lut
= (lut
<< 8) | (j
&
7448 ((0x1 << pf
->hw
.func_caps
.rss_table_entry_width
) - 1));
7449 /* On i = 3, we have 4 entries in lut; write to the register */
7451 wr32(hw
, I40E_PFQF_HLUT(i
>> 2), lut
);
7459 * i40e_reconfig_rss_queues - change number of queues for rss and rebuild
7460 * @pf: board private structure
7461 * @queue_count: the requested queue count for rss.
7463 * returns 0 if rss is not enabled, if enabled returns the final rss queue
7464 * count which may be different from the requested queue count.
7466 int i40e_reconfig_rss_queues(struct i40e_pf
*pf
, int queue_count
)
7468 struct i40e_vsi
*vsi
= pf
->vsi
[pf
->lan_vsi
];
7471 if (!(pf
->flags
& I40E_FLAG_RSS_ENABLED
))
7474 new_rss_size
= min_t(int, queue_count
, pf
->rss_size_max
);
7476 if (queue_count
!= vsi
->num_queue_pairs
) {
7477 vsi
->req_queue_pairs
= queue_count
;
7478 i40e_prep_for_reset(pf
);
7480 pf
->rss_size
= new_rss_size
;
7482 i40e_reset_and_rebuild(pf
, true);
7483 i40e_config_rss(pf
);
7485 dev_info(&pf
->pdev
->dev
, "RSS count: %d\n", pf
->rss_size
);
7486 return pf
->rss_size
;
7490 * i40e_get_npar_bw_setting - Retrieve BW settings for this PF partition
7491 * @pf: board private structure
7493 i40e_status
i40e_get_npar_bw_setting(struct i40e_pf
*pf
)
7496 bool min_valid
, max_valid
;
7499 status
= i40e_read_bw_from_alt_ram(&pf
->hw
, &max_bw
, &min_bw
,
7500 &min_valid
, &max_valid
);
7504 pf
->npar_min_bw
= min_bw
;
7506 pf
->npar_max_bw
= max_bw
;
7513 * i40e_set_npar_bw_setting - Set BW settings for this PF partition
7514 * @pf: board private structure
7516 i40e_status
i40e_set_npar_bw_setting(struct i40e_pf
*pf
)
7518 struct i40e_aqc_configure_partition_bw_data bw_data
;
7521 /* Set the valid bit for this PF */
7522 bw_data
.pf_valid_bits
= cpu_to_le16(1 << pf
->hw
.pf_id
);
7523 bw_data
.max_bw
[pf
->hw
.pf_id
] = pf
->npar_max_bw
& I40E_ALT_BW_VALUE_MASK
;
7524 bw_data
.min_bw
[pf
->hw
.pf_id
] = pf
->npar_min_bw
& I40E_ALT_BW_VALUE_MASK
;
7526 /* Set the new bandwidths */
7527 status
= i40e_aq_configure_partition_bw(&pf
->hw
, &bw_data
, NULL
);
7533 * i40e_commit_npar_bw_setting - Commit BW settings for this PF partition
7534 * @pf: board private structure
7536 i40e_status
i40e_commit_npar_bw_setting(struct i40e_pf
*pf
)
7538 /* Commit temporary BW setting to permanent NVM image */
7539 enum i40e_admin_queue_err last_aq_status
;
7543 if (pf
->hw
.partition_id
!= 1) {
7544 dev_info(&pf
->pdev
->dev
,
7545 "Commit BW only works on partition 1! This is partition %d",
7546 pf
->hw
.partition_id
);
7547 ret
= I40E_NOT_SUPPORTED
;
7551 /* Acquire NVM for read access */
7552 ret
= i40e_acquire_nvm(&pf
->hw
, I40E_RESOURCE_READ
);
7553 last_aq_status
= pf
->hw
.aq
.asq_last_status
;
7555 dev_info(&pf
->pdev
->dev
,
7556 "Cannot acquire NVM for read access, err %d: aq_err %d\n",
7557 ret
, last_aq_status
);
7561 /* Read word 0x10 of NVM - SW compatibility word 1 */
7562 ret
= i40e_aq_read_nvm(&pf
->hw
,
7563 I40E_SR_NVM_CONTROL_WORD
,
7564 0x10, sizeof(nvm_word
), &nvm_word
,
7566 /* Save off last admin queue command status before releasing
7569 last_aq_status
= pf
->hw
.aq
.asq_last_status
;
7570 i40e_release_nvm(&pf
->hw
);
7572 dev_info(&pf
->pdev
->dev
, "NVM read error, err %d aq_err %d\n",
7573 ret
, last_aq_status
);
7577 /* Wait a bit for NVM release to complete */
7580 /* Acquire NVM for write access */
7581 ret
= i40e_acquire_nvm(&pf
->hw
, I40E_RESOURCE_WRITE
);
7582 last_aq_status
= pf
->hw
.aq
.asq_last_status
;
7584 dev_info(&pf
->pdev
->dev
,
7585 "Cannot acquire NVM for write access, err %d: aq_err %d\n",
7586 ret
, last_aq_status
);
7589 /* Write it back out unchanged to initiate update NVM,
7590 * which will force a write of the shadow (alt) RAM to
7591 * the NVM - thus storing the bandwidth values permanently.
7593 ret
= i40e_aq_update_nvm(&pf
->hw
,
7594 I40E_SR_NVM_CONTROL_WORD
,
7595 0x10, sizeof(nvm_word
),
7596 &nvm_word
, true, NULL
);
7597 /* Save off last admin queue command status before releasing
7600 last_aq_status
= pf
->hw
.aq
.asq_last_status
;
7601 i40e_release_nvm(&pf
->hw
);
7603 dev_info(&pf
->pdev
->dev
,
7604 "BW settings NOT SAVED, err %d aq_err %d\n",
7605 ret
, last_aq_status
);
7612 * i40e_sw_init - Initialize general software structures (struct i40e_pf)
7613 * @pf: board private structure to initialize
7615 * i40e_sw_init initializes the Adapter private data structure.
7616 * Fields are initialized based on PCI device information and
7617 * OS network device settings (MTU size).
7619 static int i40e_sw_init(struct i40e_pf
*pf
)
7624 pf
->msg_enable
= netif_msg_init(I40E_DEFAULT_MSG_ENABLE
,
7625 (NETIF_MSG_DRV
|NETIF_MSG_PROBE
|NETIF_MSG_LINK
));
7626 pf
->hw
.debug_mask
= pf
->msg_enable
| I40E_DEBUG_DIAG
;
7627 if (debug
!= -1 && debug
!= I40E_DEFAULT_MSG_ENABLE
) {
7628 if (I40E_DEBUG_USER
& debug
)
7629 pf
->hw
.debug_mask
= debug
;
7630 pf
->msg_enable
= netif_msg_init((debug
& ~I40E_DEBUG_USER
),
7631 I40E_DEFAULT_MSG_ENABLE
);
7634 /* Set default capability flags */
7635 pf
->flags
= I40E_FLAG_RX_CSUM_ENABLED
|
7636 I40E_FLAG_MSI_ENABLED
|
7637 I40E_FLAG_MSIX_ENABLED
;
7639 if (iommu_present(&pci_bus_type
))
7640 pf
->flags
|= I40E_FLAG_RX_PS_ENABLED
;
7642 pf
->flags
|= I40E_FLAG_RX_1BUF_ENABLED
;
7644 /* Set default ITR */
7645 pf
->rx_itr_default
= I40E_ITR_DYNAMIC
| I40E_ITR_RX_DEF
;
7646 pf
->tx_itr_default
= I40E_ITR_DYNAMIC
| I40E_ITR_TX_DEF
;
7648 /* Depending on PF configurations, it is possible that the RSS
7649 * maximum might end up larger than the available queues
7651 pf
->rss_size_max
= 0x1 << pf
->hw
.func_caps
.rss_table_entry_width
;
7653 pf
->rss_table_size
= pf
->hw
.func_caps
.rss_table_size
;
7654 pf
->rss_size_max
= min_t(int, pf
->rss_size_max
,
7655 pf
->hw
.func_caps
.num_tx_qp
);
7656 if (pf
->hw
.func_caps
.rss
) {
7657 pf
->flags
|= I40E_FLAG_RSS_ENABLED
;
7658 pf
->rss_size
= min_t(int, pf
->rss_size_max
, num_online_cpus());
7661 /* MFP mode enabled */
7662 if (pf
->hw
.func_caps
.npar_enable
|| pf
->hw
.func_caps
.mfp_mode_1
) {
7663 pf
->flags
|= I40E_FLAG_MFP_ENABLED
;
7664 dev_info(&pf
->pdev
->dev
, "MFP mode Enabled\n");
7665 if (i40e_get_npar_bw_setting(pf
))
7666 dev_warn(&pf
->pdev
->dev
,
7667 "Could not get NPAR bw settings\n");
7669 dev_info(&pf
->pdev
->dev
,
7670 "Min BW = %8.8x, Max BW = %8.8x\n",
7671 pf
->npar_min_bw
, pf
->npar_max_bw
);
7674 /* FW/NVM is not yet fixed in this regard */
7675 if ((pf
->hw
.func_caps
.fd_filters_guaranteed
> 0) ||
7676 (pf
->hw
.func_caps
.fd_filters_best_effort
> 0)) {
7677 pf
->flags
|= I40E_FLAG_FD_ATR_ENABLED
;
7678 pf
->atr_sample_rate
= I40E_DEFAULT_ATR_SAMPLE_RATE
;
7679 /* Setup a counter for fd_atr per PF */
7680 pf
->fd_atr_cnt_idx
= I40E_FD_ATR_STAT_IDX(pf
->hw
.pf_id
);
7681 if (!(pf
->flags
& I40E_FLAG_MFP_ENABLED
)) {
7682 pf
->flags
|= I40E_FLAG_FD_SB_ENABLED
;
7683 /* Setup a counter for fd_sb per PF */
7684 pf
->fd_sb_cnt_idx
= I40E_FD_SB_STAT_IDX(pf
->hw
.pf_id
);
7686 dev_info(&pf
->pdev
->dev
,
7687 "Flow Director Sideband mode Disabled in MFP mode\n");
7689 pf
->fdir_pf_filter_count
=
7690 pf
->hw
.func_caps
.fd_filters_guaranteed
;
7691 pf
->hw
.fdir_shared_filter_count
=
7692 pf
->hw
.func_caps
.fd_filters_best_effort
;
7695 if (pf
->hw
.func_caps
.vmdq
) {
7696 pf
->flags
|= I40E_FLAG_VMDQ_ENABLED
;
7697 pf
->num_vmdq_vsis
= I40E_DEFAULT_NUM_VMDQ_VSI
;
7698 pf
->num_vmdq_qps
= I40E_DEFAULT_QUEUES_PER_VMDQ
;
7702 err
= i40e_init_pf_fcoe(pf
);
7704 dev_info(&pf
->pdev
->dev
, "init_pf_fcoe failed: %d\n", err
);
7706 #endif /* I40E_FCOE */
7707 #ifdef CONFIG_PCI_IOV
7708 if (pf
->hw
.func_caps
.num_vfs
&& pf
->hw
.partition_id
== 1) {
7709 pf
->num_vf_qps
= I40E_DEFAULT_QUEUES_PER_VF
;
7710 pf
->flags
|= I40E_FLAG_SRIOV_ENABLED
;
7711 pf
->num_req_vfs
= min_t(int,
7712 pf
->hw
.func_caps
.num_vfs
,
7715 #endif /* CONFIG_PCI_IOV */
7716 pf
->eeprom_version
= 0xDEAD;
7717 pf
->lan_veb
= I40E_NO_VEB
;
7718 pf
->lan_vsi
= I40E_NO_VSI
;
7720 /* set up queue assignment tracking */
7721 size
= sizeof(struct i40e_lump_tracking
)
7722 + (sizeof(u16
) * pf
->hw
.func_caps
.num_tx_qp
);
7723 pf
->qp_pile
= kzalloc(size
, GFP_KERNEL
);
7728 pf
->qp_pile
->num_entries
= pf
->hw
.func_caps
.num_tx_qp
;
7729 pf
->qp_pile
->search_hint
= 0;
7731 pf
->tx_timeout_recovery_level
= 1;
7733 mutex_init(&pf
->switch_mutex
);
7735 /* If NPAR is enabled nudge the Tx scheduler */
7736 if (pf
->hw
.func_caps
.npar_enable
&& (!i40e_get_npar_bw_setting(pf
)))
7737 i40e_set_npar_bw_setting(pf
);
7744 * i40e_set_ntuple - set the ntuple feature flag and take action
7745 * @pf: board private structure to initialize
7746 * @features: the feature set that the stack is suggesting
7748 * returns a bool to indicate if reset needs to happen
7750 bool i40e_set_ntuple(struct i40e_pf
*pf
, netdev_features_t features
)
7752 bool need_reset
= false;
7754 /* Check if Flow Director n-tuple support was enabled or disabled. If
7755 * the state changed, we need to reset.
7757 if (features
& NETIF_F_NTUPLE
) {
7758 /* Enable filters and mark for reset */
7759 if (!(pf
->flags
& I40E_FLAG_FD_SB_ENABLED
))
7761 pf
->flags
|= I40E_FLAG_FD_SB_ENABLED
;
7763 /* turn off filters, mark for reset and clear SW filter list */
7764 if (pf
->flags
& I40E_FLAG_FD_SB_ENABLED
) {
7766 i40e_fdir_filter_exit(pf
);
7768 pf
->flags
&= ~I40E_FLAG_FD_SB_ENABLED
;
7769 pf
->auto_disable_flags
&= ~I40E_FLAG_FD_SB_ENABLED
;
7770 /* reset fd counters */
7771 pf
->fd_add_err
= pf
->fd_atr_cnt
= pf
->fd_tcp_rule
= 0;
7772 pf
->fdir_pf_active_filters
= 0;
7773 pf
->flags
|= I40E_FLAG_FD_ATR_ENABLED
;
7774 dev_info(&pf
->pdev
->dev
, "ATR re-enabled.\n");
7775 /* if ATR was auto disabled it can be re-enabled. */
7776 if ((pf
->flags
& I40E_FLAG_FD_ATR_ENABLED
) &&
7777 (pf
->auto_disable_flags
& I40E_FLAG_FD_ATR_ENABLED
))
7778 pf
->auto_disable_flags
&= ~I40E_FLAG_FD_ATR_ENABLED
;
7784 * i40e_set_features - set the netdev feature flags
7785 * @netdev: ptr to the netdev being adjusted
7786 * @features: the feature set that the stack is suggesting
7788 static int i40e_set_features(struct net_device
*netdev
,
7789 netdev_features_t features
)
7791 struct i40e_netdev_priv
*np
= netdev_priv(netdev
);
7792 struct i40e_vsi
*vsi
= np
->vsi
;
7793 struct i40e_pf
*pf
= vsi
->back
;
7796 if (features
& NETIF_F_HW_VLAN_CTAG_RX
)
7797 i40e_vlan_stripping_enable(vsi
);
7799 i40e_vlan_stripping_disable(vsi
);
7801 need_reset
= i40e_set_ntuple(pf
, features
);
7804 i40e_do_reset(pf
, (1 << __I40E_PF_RESET_REQUESTED
));
7809 #ifdef CONFIG_I40E_VXLAN
7811 * i40e_get_vxlan_port_idx - Lookup a possibly offloaded for Rx UDP port
7812 * @pf: board private structure
7813 * @port: The UDP port to look up
7815 * Returns the index number or I40E_MAX_PF_UDP_OFFLOAD_PORTS if port not found
7817 static u8
i40e_get_vxlan_port_idx(struct i40e_pf
*pf
, __be16 port
)
7821 for (i
= 0; i
< I40E_MAX_PF_UDP_OFFLOAD_PORTS
; i
++) {
7822 if (pf
->vxlan_ports
[i
] == port
)
7830 * i40e_add_vxlan_port - Get notifications about VXLAN ports that come up
7831 * @netdev: This physical port's netdev
7832 * @sa_family: Socket Family that VXLAN is notifying us about
7833 * @port: New UDP port number that VXLAN started listening to
7835 static void i40e_add_vxlan_port(struct net_device
*netdev
,
7836 sa_family_t sa_family
, __be16 port
)
7838 struct i40e_netdev_priv
*np
= netdev_priv(netdev
);
7839 struct i40e_vsi
*vsi
= np
->vsi
;
7840 struct i40e_pf
*pf
= vsi
->back
;
7844 if (sa_family
== AF_INET6
)
7847 idx
= i40e_get_vxlan_port_idx(pf
, port
);
7849 /* Check if port already exists */
7850 if (idx
< I40E_MAX_PF_UDP_OFFLOAD_PORTS
) {
7851 netdev_info(netdev
, "vxlan port %d already offloaded\n",
7856 /* Now check if there is space to add the new port */
7857 next_idx
= i40e_get_vxlan_port_idx(pf
, 0);
7859 if (next_idx
== I40E_MAX_PF_UDP_OFFLOAD_PORTS
) {
7860 netdev_info(netdev
, "maximum number of vxlan UDP ports reached, not adding port %d\n",
7865 /* New port: add it and mark its index in the bitmap */
7866 pf
->vxlan_ports
[next_idx
] = port
;
7867 pf
->pending_vxlan_bitmap
|= (1 << next_idx
);
7868 pf
->flags
|= I40E_FLAG_VXLAN_FILTER_SYNC
;
7870 dev_info(&pf
->pdev
->dev
, "adding vxlan port %d\n", ntohs(port
));
7874 * i40e_del_vxlan_port - Get notifications about VXLAN ports that go away
7875 * @netdev: This physical port's netdev
7876 * @sa_family: Socket Family that VXLAN is notifying us about
7877 * @port: UDP port number that VXLAN stopped listening to
7879 static void i40e_del_vxlan_port(struct net_device
*netdev
,
7880 sa_family_t sa_family
, __be16 port
)
7882 struct i40e_netdev_priv
*np
= netdev_priv(netdev
);
7883 struct i40e_vsi
*vsi
= np
->vsi
;
7884 struct i40e_pf
*pf
= vsi
->back
;
7887 if (sa_family
== AF_INET6
)
7890 idx
= i40e_get_vxlan_port_idx(pf
, port
);
7892 /* Check if port already exists */
7893 if (idx
< I40E_MAX_PF_UDP_OFFLOAD_PORTS
) {
7894 /* if port exists, set it to 0 (mark for deletion)
7895 * and make it pending
7897 pf
->vxlan_ports
[idx
] = 0;
7898 pf
->pending_vxlan_bitmap
|= (1 << idx
);
7899 pf
->flags
|= I40E_FLAG_VXLAN_FILTER_SYNC
;
7901 dev_info(&pf
->pdev
->dev
, "deleting vxlan port %d\n",
7904 netdev_warn(netdev
, "vxlan port %d was not found, not deleting\n",
7910 static int i40e_get_phys_port_id(struct net_device
*netdev
,
7911 struct netdev_phys_item_id
*ppid
)
7913 struct i40e_netdev_priv
*np
= netdev_priv(netdev
);
7914 struct i40e_pf
*pf
= np
->vsi
->back
;
7915 struct i40e_hw
*hw
= &pf
->hw
;
7917 if (!(pf
->flags
& I40E_FLAG_PORT_ID_VALID
))
7920 ppid
->id_len
= min_t(int, sizeof(hw
->mac
.port_addr
), sizeof(ppid
->id
));
7921 memcpy(ppid
->id
, hw
->mac
.port_addr
, ppid
->id_len
);
7927 * i40e_ndo_fdb_add - add an entry to the hardware database
7928 * @ndm: the input from the stack
7929 * @tb: pointer to array of nladdr (unused)
7930 * @dev: the net device pointer
7931 * @addr: the MAC address entry being added
7932 * @flags: instructions from stack about fdb operation
7934 static int i40e_ndo_fdb_add(struct ndmsg
*ndm
, struct nlattr
*tb
[],
7935 struct net_device
*dev
,
7936 const unsigned char *addr
, u16 vid
,
7939 struct i40e_netdev_priv
*np
= netdev_priv(dev
);
7940 struct i40e_pf
*pf
= np
->vsi
->back
;
7943 if (!(pf
->flags
& I40E_FLAG_SRIOV_ENABLED
))
7947 pr_info("%s: vlans aren't supported yet for dev_uc|mc_add()\n", dev
->name
);
7951 /* Hardware does not support aging addresses so if a
7952 * ndm_state is given only allow permanent addresses
7954 if (ndm
->ndm_state
&& !(ndm
->ndm_state
& NUD_PERMANENT
)) {
7955 netdev_info(dev
, "FDB only supports static addresses\n");
7959 if (is_unicast_ether_addr(addr
) || is_link_local_ether_addr(addr
))
7960 err
= dev_uc_add_excl(dev
, addr
);
7961 else if (is_multicast_ether_addr(addr
))
7962 err
= dev_mc_add_excl(dev
, addr
);
7966 /* Only return duplicate errors if NLM_F_EXCL is set */
7967 if (err
== -EEXIST
&& !(flags
& NLM_F_EXCL
))
7973 #ifdef HAVE_BRIDGE_ATTRIBS
7975 * i40e_ndo_bridge_setlink - Set the hardware bridge mode
7976 * @dev: the netdev being configured
7977 * @nlh: RTNL message
7979 * Inserts a new hardware bridge if not already created and
7980 * enables the bridging mode requested (VEB or VEPA). If the
7981 * hardware bridge has already been inserted and the request
7982 * is to change the mode then that requires a PF reset to
7983 * allow rebuild of the components with required hardware
7984 * bridge mode enabled.
7986 static int i40e_ndo_bridge_setlink(struct net_device
*dev
,
7987 struct nlmsghdr
*nlh
)
7989 struct i40e_netdev_priv
*np
= netdev_priv(dev
);
7990 struct i40e_vsi
*vsi
= np
->vsi
;
7991 struct i40e_pf
*pf
= vsi
->back
;
7992 struct i40e_veb
*veb
= NULL
;
7993 struct nlattr
*attr
, *br_spec
;
7996 /* Only for PF VSI for now */
7997 if (vsi
->seid
!= pf
->vsi
[pf
->lan_vsi
]->seid
)
8000 /* Find the HW bridge for PF VSI */
8001 for (i
= 0; i
< I40E_MAX_VEB
&& !veb
; i
++) {
8002 if (pf
->veb
[i
] && pf
->veb
[i
]->seid
== vsi
->uplink_seid
)
8006 br_spec
= nlmsg_find_attr(nlh
, sizeof(struct ifinfomsg
), IFLA_AF_SPEC
);
8008 nla_for_each_nested(attr
, br_spec
, rem
) {
8011 if (nla_type(attr
) != IFLA_BRIDGE_MODE
)
8014 mode
= nla_get_u16(attr
);
8015 if ((mode
!= BRIDGE_MODE_VEPA
) &&
8016 (mode
!= BRIDGE_MODE_VEB
))
8019 /* Insert a new HW bridge */
8021 veb
= i40e_veb_setup(pf
, 0, vsi
->uplink_seid
, vsi
->seid
,
8022 vsi
->tc_config
.enabled_tc
);
8024 veb
->bridge_mode
= mode
;
8025 i40e_config_bridge_mode(veb
);
8027 /* No Bridge HW offload available */
8031 } else if (mode
!= veb
->bridge_mode
) {
8032 /* Existing HW bridge but different mode needs reset */
8033 veb
->bridge_mode
= mode
;
8034 i40e_do_reset(pf
, (1 << __I40E_PF_RESET_REQUESTED
));
8043 * i40e_ndo_bridge_getlink - Get the hardware bridge mode
8046 * @seq: RTNL message seq #
8047 * @dev: the netdev being configured
8048 * @filter_mask: unused
8050 * Return the mode in which the hardware bridge is operating in
8053 #ifdef HAVE_BRIDGE_FILTER
8054 static int i40e_ndo_bridge_getlink(struct sk_buff
*skb
, u32 pid
, u32 seq
,
8055 struct net_device
*dev
,
8056 u32 __always_unused filter_mask
, int nlflags
)
8058 static int i40e_ndo_bridge_getlink(struct sk_buff
*skb
, u32 pid
, u32 seq
,
8059 struct net_device
*dev
, int nlflags
)
8060 #endif /* HAVE_BRIDGE_FILTER */
8062 struct i40e_netdev_priv
*np
= netdev_priv(dev
);
8063 struct i40e_vsi
*vsi
= np
->vsi
;
8064 struct i40e_pf
*pf
= vsi
->back
;
8065 struct i40e_veb
*veb
= NULL
;
8068 /* Only for PF VSI for now */
8069 if (vsi
->seid
!= pf
->vsi
[pf
->lan_vsi
]->seid
)
8072 /* Find the HW bridge for the PF VSI */
8073 for (i
= 0; i
< I40E_MAX_VEB
&& !veb
; i
++) {
8074 if (pf
->veb
[i
] && pf
->veb
[i
]->seid
== vsi
->uplink_seid
)
8081 return ndo_dflt_bridge_getlink(skb
, pid
, seq
, dev
, veb
->bridge_mode
,
8084 #endif /* HAVE_BRIDGE_ATTRIBS */
8086 static const struct net_device_ops i40e_netdev_ops
= {
8087 .ndo_open
= i40e_open
,
8088 .ndo_stop
= i40e_close
,
8089 .ndo_start_xmit
= i40e_lan_xmit_frame
,
8090 .ndo_get_stats64
= i40e_get_netdev_stats_struct
,
8091 .ndo_set_rx_mode
= i40e_set_rx_mode
,
8092 .ndo_validate_addr
= eth_validate_addr
,
8093 .ndo_set_mac_address
= i40e_set_mac
,
8094 .ndo_change_mtu
= i40e_change_mtu
,
8095 .ndo_do_ioctl
= i40e_ioctl
,
8096 .ndo_tx_timeout
= i40e_tx_timeout
,
8097 .ndo_vlan_rx_add_vid
= i40e_vlan_rx_add_vid
,
8098 .ndo_vlan_rx_kill_vid
= i40e_vlan_rx_kill_vid
,
8099 #ifdef CONFIG_NET_POLL_CONTROLLER
8100 .ndo_poll_controller
= i40e_netpoll
,
8102 .ndo_setup_tc
= i40e_setup_tc
,
8104 .ndo_fcoe_enable
= i40e_fcoe_enable
,
8105 .ndo_fcoe_disable
= i40e_fcoe_disable
,
8107 .ndo_set_features
= i40e_set_features
,
8108 .ndo_set_vf_mac
= i40e_ndo_set_vf_mac
,
8109 .ndo_set_vf_vlan
= i40e_ndo_set_vf_port_vlan
,
8110 .ndo_set_vf_rate
= i40e_ndo_set_vf_bw
,
8111 .ndo_get_vf_config
= i40e_ndo_get_vf_config
,
8112 .ndo_set_vf_link_state
= i40e_ndo_set_vf_link_state
,
8113 .ndo_set_vf_spoofchk
= i40e_ndo_set_vf_spoofchk
,
8114 #ifdef CONFIG_I40E_VXLAN
8115 .ndo_add_vxlan_port
= i40e_add_vxlan_port
,
8116 .ndo_del_vxlan_port
= i40e_del_vxlan_port
,
8118 .ndo_get_phys_port_id
= i40e_get_phys_port_id
,
8119 .ndo_fdb_add
= i40e_ndo_fdb_add
,
8120 #ifdef HAVE_BRIDGE_ATTRIBS
8121 .ndo_bridge_getlink
= i40e_ndo_bridge_getlink
,
8122 .ndo_bridge_setlink
= i40e_ndo_bridge_setlink
,
8123 #endif /* HAVE_BRIDGE_ATTRIBS */
8127 * i40e_config_netdev - Setup the netdev flags
8128 * @vsi: the VSI being configured
8130 * Returns 0 on success, negative value on failure
8132 static int i40e_config_netdev(struct i40e_vsi
*vsi
)
8134 u8 brdcast
[ETH_ALEN
] = {0xff, 0xff, 0xff, 0xff, 0xff, 0xff};
8135 struct i40e_pf
*pf
= vsi
->back
;
8136 struct i40e_hw
*hw
= &pf
->hw
;
8137 struct i40e_netdev_priv
*np
;
8138 struct net_device
*netdev
;
8139 u8 mac_addr
[ETH_ALEN
];
8142 etherdev_size
= sizeof(struct i40e_netdev_priv
);
8143 netdev
= alloc_etherdev_mq(etherdev_size
, vsi
->alloc_queue_pairs
);
8147 vsi
->netdev
= netdev
;
8148 np
= netdev_priv(netdev
);
8151 netdev
->hw_enc_features
|= NETIF_F_IP_CSUM
|
8152 NETIF_F_GSO_UDP_TUNNEL
|
8155 netdev
->features
= NETIF_F_SG
|
8159 NETIF_F_GSO_UDP_TUNNEL
|
8160 NETIF_F_HW_VLAN_CTAG_TX
|
8161 NETIF_F_HW_VLAN_CTAG_RX
|
8162 NETIF_F_HW_VLAN_CTAG_FILTER
|
8171 if (!(pf
->flags
& I40E_FLAG_MFP_ENABLED
))
8172 netdev
->features
|= NETIF_F_NTUPLE
;
8174 /* copy netdev features into list of user selectable features */
8175 netdev
->hw_features
|= netdev
->features
;
8177 if (vsi
->type
== I40E_VSI_MAIN
) {
8178 SET_NETDEV_DEV(netdev
, &pf
->pdev
->dev
);
8179 ether_addr_copy(mac_addr
, hw
->mac
.perm_addr
);
8180 /* The following steps are necessary to prevent reception
8181 * of tagged packets - some older NVM configurations load a
8182 * default a MAC-VLAN filter that accepts any tagged packet
8183 * which must be replaced by a normal filter.
8185 if (!i40e_rm_default_mac_filter(vsi
, mac_addr
))
8186 i40e_add_filter(vsi
, mac_addr
,
8187 I40E_VLAN_ANY
, false, true);
8189 /* relate the VSI_VMDQ name to the VSI_MAIN name */
8190 snprintf(netdev
->name
, IFNAMSIZ
, "%sv%%d",
8191 pf
->vsi
[pf
->lan_vsi
]->netdev
->name
);
8192 random_ether_addr(mac_addr
);
8193 i40e_add_filter(vsi
, mac_addr
, I40E_VLAN_ANY
, false, false);
8195 i40e_add_filter(vsi
, brdcast
, I40E_VLAN_ANY
, false, false);
8197 ether_addr_copy(netdev
->dev_addr
, mac_addr
);
8198 ether_addr_copy(netdev
->perm_addr
, mac_addr
);
8199 /* vlan gets same features (except vlan offload)
8200 * after any tweaks for specific VSI types
8202 netdev
->vlan_features
= netdev
->features
& ~(NETIF_F_HW_VLAN_CTAG_TX
|
8203 NETIF_F_HW_VLAN_CTAG_RX
|
8204 NETIF_F_HW_VLAN_CTAG_FILTER
);
8205 netdev
->priv_flags
|= IFF_UNICAST_FLT
;
8206 netdev
->priv_flags
|= IFF_SUPP_NOFCS
;
8207 /* Setup netdev TC information */
8208 i40e_vsi_config_netdev_tc(vsi
, vsi
->tc_config
.enabled_tc
);
8210 netdev
->netdev_ops
= &i40e_netdev_ops
;
8211 netdev
->watchdog_timeo
= 5 * HZ
;
8212 i40e_set_ethtool_ops(netdev
);
8214 i40e_fcoe_config_netdev(netdev
, vsi
);
8221 * i40e_vsi_delete - Delete a VSI from the switch
8222 * @vsi: the VSI being removed
8224 * Returns 0 on success, negative value on failure
8226 static void i40e_vsi_delete(struct i40e_vsi
*vsi
)
8228 /* remove default VSI is not allowed */
8229 if (vsi
== vsi
->back
->vsi
[vsi
->back
->lan_vsi
])
8232 i40e_aq_delete_element(&vsi
->back
->hw
, vsi
->seid
, NULL
);
8236 * i40e_is_vsi_uplink_mode_veb - Check if the VSI's uplink bridge mode is VEB
8237 * @vsi: the VSI being queried
8239 * Returns 1 if HW bridge mode is VEB and return 0 in case of VEPA mode
8241 int i40e_is_vsi_uplink_mode_veb(struct i40e_vsi
*vsi
)
8243 struct i40e_veb
*veb
;
8244 struct i40e_pf
*pf
= vsi
->back
;
8246 /* Uplink is not a bridge so default to VEB */
8247 if (vsi
->veb_idx
== I40E_NO_VEB
)
8250 veb
= pf
->veb
[vsi
->veb_idx
];
8251 /* Uplink is a bridge in VEPA mode */
8252 if (veb
&& (veb
->bridge_mode
& BRIDGE_MODE_VEPA
))
8255 /* Uplink is a bridge in VEB mode */
8260 * i40e_add_vsi - Add a VSI to the switch
8261 * @vsi: the VSI being configured
8263 * This initializes a VSI context depending on the VSI type to be added and
8264 * passes it down to the add_vsi aq command.
8266 static int i40e_add_vsi(struct i40e_vsi
*vsi
)
8269 struct i40e_mac_filter
*f
, *ftmp
;
8270 struct i40e_pf
*pf
= vsi
->back
;
8271 struct i40e_hw
*hw
= &pf
->hw
;
8272 struct i40e_vsi_context ctxt
;
8273 u8 enabled_tc
= 0x1; /* TC0 enabled */
8276 memset(&ctxt
, 0, sizeof(ctxt
));
8277 switch (vsi
->type
) {
8279 /* The PF's main VSI is already setup as part of the
8280 * device initialization, so we'll not bother with
8281 * the add_vsi call, but we will retrieve the current
8284 ctxt
.seid
= pf
->main_vsi_seid
;
8285 ctxt
.pf_num
= pf
->hw
.pf_id
;
8287 ret
= i40e_aq_get_vsi_params(&pf
->hw
, &ctxt
, NULL
);
8288 ctxt
.flags
= I40E_AQ_VSI_TYPE_PF
;
8290 dev_info(&pf
->pdev
->dev
,
8291 "couldn't get PF vsi config, err %d, aq_err %d\n",
8292 ret
, pf
->hw
.aq
.asq_last_status
);
8295 vsi
->info
= ctxt
.info
;
8296 vsi
->info
.valid_sections
= 0;
8298 vsi
->seid
= ctxt
.seid
;
8299 vsi
->id
= ctxt
.vsi_number
;
8301 enabled_tc
= i40e_pf_get_tc_map(pf
);
8303 /* MFP mode setup queue map and update VSI */
8304 if ((pf
->flags
& I40E_FLAG_MFP_ENABLED
) &&
8305 !(pf
->hw
.func_caps
.iscsi
)) { /* NIC type PF */
8306 memset(&ctxt
, 0, sizeof(ctxt
));
8307 ctxt
.seid
= pf
->main_vsi_seid
;
8308 ctxt
.pf_num
= pf
->hw
.pf_id
;
8310 i40e_vsi_setup_queue_map(vsi
, &ctxt
, enabled_tc
, false);
8311 ret
= i40e_aq_update_vsi_params(hw
, &ctxt
, NULL
);
8313 dev_info(&pf
->pdev
->dev
,
8314 "update vsi failed, aq_err=%d\n",
8315 pf
->hw
.aq
.asq_last_status
);
8319 /* update the local VSI info queue map */
8320 i40e_vsi_update_queue_map(vsi
, &ctxt
);
8321 vsi
->info
.valid_sections
= 0;
8323 /* Default/Main VSI is only enabled for TC0
8324 * reconfigure it to enable all TCs that are
8325 * available on the port in SFP mode.
8326 * For MFP case the iSCSI PF would use this
8327 * flow to enable LAN+iSCSI TC.
8329 ret
= i40e_vsi_config_tc(vsi
, enabled_tc
);
8331 dev_info(&pf
->pdev
->dev
,
8332 "failed to configure TCs for main VSI tc_map 0x%08x, err %d, aq_err %d\n",
8334 pf
->hw
.aq
.asq_last_status
);
8341 ctxt
.pf_num
= hw
->pf_id
;
8343 ctxt
.uplink_seid
= vsi
->uplink_seid
;
8344 ctxt
.connection_type
= I40E_AQ_VSI_CONN_TYPE_NORMAL
;
8345 ctxt
.flags
= I40E_AQ_VSI_TYPE_PF
;
8346 if (i40e_is_vsi_uplink_mode_veb(vsi
)) {
8347 ctxt
.info
.valid_sections
|=
8348 cpu_to_le16(I40E_AQ_VSI_PROP_SWITCH_VALID
);
8349 ctxt
.info
.switch_id
=
8350 cpu_to_le16(I40E_AQ_VSI_SW_ID_FLAG_ALLOW_LB
);
8352 i40e_vsi_setup_queue_map(vsi
, &ctxt
, enabled_tc
, true);
8355 case I40E_VSI_VMDQ2
:
8356 ctxt
.pf_num
= hw
->pf_id
;
8358 ctxt
.uplink_seid
= vsi
->uplink_seid
;
8359 ctxt
.connection_type
= I40E_AQ_VSI_CONN_TYPE_NORMAL
;
8360 ctxt
.flags
= I40E_AQ_VSI_TYPE_VMDQ2
;
8362 /* This VSI is connected to VEB so the switch_id
8363 * should be set to zero by default.
8365 if (i40e_is_vsi_uplink_mode_veb(vsi
)) {
8366 ctxt
.info
.valid_sections
|=
8367 cpu_to_le16(I40E_AQ_VSI_PROP_SWITCH_VALID
);
8368 ctxt
.info
.switch_id
=
8369 cpu_to_le16(I40E_AQ_VSI_SW_ID_FLAG_ALLOW_LB
);
8372 /* Setup the VSI tx/rx queue map for TC0 only for now */
8373 i40e_vsi_setup_queue_map(vsi
, &ctxt
, enabled_tc
, true);
8376 case I40E_VSI_SRIOV
:
8377 ctxt
.pf_num
= hw
->pf_id
;
8378 ctxt
.vf_num
= vsi
->vf_id
+ hw
->func_caps
.vf_base_id
;
8379 ctxt
.uplink_seid
= vsi
->uplink_seid
;
8380 ctxt
.connection_type
= I40E_AQ_VSI_CONN_TYPE_NORMAL
;
8381 ctxt
.flags
= I40E_AQ_VSI_TYPE_VF
;
8383 /* This VSI is connected to VEB so the switch_id
8384 * should be set to zero by default.
8386 if (i40e_is_vsi_uplink_mode_veb(vsi
)) {
8387 ctxt
.info
.valid_sections
|=
8388 cpu_to_le16(I40E_AQ_VSI_PROP_SWITCH_VALID
);
8389 ctxt
.info
.switch_id
=
8390 cpu_to_le16(I40E_AQ_VSI_SW_ID_FLAG_ALLOW_LB
);
8393 ctxt
.info
.valid_sections
|= cpu_to_le16(I40E_AQ_VSI_PROP_VLAN_VALID
);
8394 ctxt
.info
.port_vlan_flags
|= I40E_AQ_VSI_PVLAN_MODE_ALL
;
8395 if (pf
->vf
[vsi
->vf_id
].spoofchk
) {
8396 ctxt
.info
.valid_sections
|=
8397 cpu_to_le16(I40E_AQ_VSI_PROP_SECURITY_VALID
);
8398 ctxt
.info
.sec_flags
|=
8399 (I40E_AQ_VSI_SEC_FLAG_ENABLE_VLAN_CHK
|
8400 I40E_AQ_VSI_SEC_FLAG_ENABLE_MAC_CHK
);
8402 /* Setup the VSI tx/rx queue map for TC0 only for now */
8403 i40e_vsi_setup_queue_map(vsi
, &ctxt
, enabled_tc
, true);
8408 ret
= i40e_fcoe_vsi_init(vsi
, &ctxt
);
8410 dev_info(&pf
->pdev
->dev
, "failed to initialize FCoE VSI\n");
8415 #endif /* I40E_FCOE */
8420 if (vsi
->type
!= I40E_VSI_MAIN
) {
8421 ret
= i40e_aq_add_vsi(hw
, &ctxt
, NULL
);
8423 dev_info(&vsi
->back
->pdev
->dev
,
8424 "add vsi failed, aq_err=%d\n",
8425 vsi
->back
->hw
.aq
.asq_last_status
);
8429 vsi
->info
= ctxt
.info
;
8430 vsi
->info
.valid_sections
= 0;
8431 vsi
->seid
= ctxt
.seid
;
8432 vsi
->id
= ctxt
.vsi_number
;
8435 /* If macvlan filters already exist, force them to get loaded */
8436 list_for_each_entry_safe(f
, ftmp
, &vsi
->mac_filter_list
, list
) {
8440 if (f
->is_laa
&& vsi
->type
== I40E_VSI_MAIN
) {
8441 struct i40e_aqc_remove_macvlan_element_data element
;
8443 memset(&element
, 0, sizeof(element
));
8444 ether_addr_copy(element
.mac_addr
, f
->macaddr
);
8445 element
.flags
= I40E_AQC_MACVLAN_DEL_PERFECT_MATCH
;
8446 ret
= i40e_aq_remove_macvlan(hw
, vsi
->seid
,
8449 /* some older FW has a different default */
8451 I40E_AQC_MACVLAN_DEL_IGNORE_VLAN
;
8452 i40e_aq_remove_macvlan(hw
, vsi
->seid
,
8456 i40e_aq_mac_address_write(hw
,
8457 I40E_AQC_WRITE_TYPE_LAA_WOL
,
8462 vsi
->flags
|= I40E_VSI_FLAG_FILTER_CHANGED
;
8463 pf
->flags
|= I40E_FLAG_FILTER_SYNC
;
8466 /* Update VSI BW information */
8467 ret
= i40e_vsi_get_bw_info(vsi
);
8469 dev_info(&pf
->pdev
->dev
,
8470 "couldn't get vsi bw info, err %d, aq_err %d\n",
8471 ret
, pf
->hw
.aq
.asq_last_status
);
8472 /* VSI is already added so not tearing that up */
8481 * i40e_vsi_release - Delete a VSI and free its resources
8482 * @vsi: the VSI being removed
8484 * Returns 0 on success or < 0 on error
8486 int i40e_vsi_release(struct i40e_vsi
*vsi
)
8488 struct i40e_mac_filter
*f
, *ftmp
;
8489 struct i40e_veb
*veb
= NULL
;
8496 /* release of a VEB-owner or last VSI is not allowed */
8497 if (vsi
->flags
& I40E_VSI_FLAG_VEB_OWNER
) {
8498 dev_info(&pf
->pdev
->dev
, "VSI %d has existing VEB %d\n",
8499 vsi
->seid
, vsi
->uplink_seid
);
8502 if (vsi
== pf
->vsi
[pf
->lan_vsi
] &&
8503 !test_bit(__I40E_DOWN
, &pf
->state
)) {
8504 dev_info(&pf
->pdev
->dev
, "Can't remove PF VSI\n");
8508 uplink_seid
= vsi
->uplink_seid
;
8509 if (vsi
->type
!= I40E_VSI_SRIOV
) {
8510 if (vsi
->netdev_registered
) {
8511 vsi
->netdev_registered
= false;
8513 /* results in a call to i40e_close() */
8514 unregister_netdev(vsi
->netdev
);
8517 i40e_vsi_close(vsi
);
8519 i40e_vsi_disable_irq(vsi
);
8522 list_for_each_entry_safe(f
, ftmp
, &vsi
->mac_filter_list
, list
)
8523 i40e_del_filter(vsi
, f
->macaddr
, f
->vlan
,
8524 f
->is_vf
, f
->is_netdev
);
8525 i40e_sync_vsi_filters(vsi
);
8527 i40e_vsi_delete(vsi
);
8528 i40e_vsi_free_q_vectors(vsi
);
8530 free_netdev(vsi
->netdev
);
8533 i40e_vsi_clear_rings(vsi
);
8534 i40e_vsi_clear(vsi
);
8536 /* If this was the last thing on the VEB, except for the
8537 * controlling VSI, remove the VEB, which puts the controlling
8538 * VSI onto the next level down in the switch.
8540 * Well, okay, there's one more exception here: don't remove
8541 * the orphan VEBs yet. We'll wait for an explicit remove request
8542 * from up the network stack.
8544 for (n
= 0, i
= 0; i
< pf
->num_alloc_vsi
; i
++) {
8546 pf
->vsi
[i
]->uplink_seid
== uplink_seid
&&
8547 (pf
->vsi
[i
]->flags
& I40E_VSI_FLAG_VEB_OWNER
) == 0) {
8548 n
++; /* count the VSIs */
8551 for (i
= 0; i
< I40E_MAX_VEB
; i
++) {
8554 if (pf
->veb
[i
]->uplink_seid
== uplink_seid
)
8555 n
++; /* count the VEBs */
8556 if (pf
->veb
[i
]->seid
== uplink_seid
)
8559 if (n
== 0 && veb
&& veb
->uplink_seid
!= 0)
8560 i40e_veb_release(veb
);
8566 * i40e_vsi_setup_vectors - Set up the q_vectors for the given VSI
8567 * @vsi: ptr to the VSI
8569 * This should only be called after i40e_vsi_mem_alloc() which allocates the
8570 * corresponding SW VSI structure and initializes num_queue_pairs for the
8571 * newly allocated VSI.
8573 * Returns 0 on success or negative on failure
8575 static int i40e_vsi_setup_vectors(struct i40e_vsi
*vsi
)
8578 struct i40e_pf
*pf
= vsi
->back
;
8580 if (vsi
->q_vectors
[0]) {
8581 dev_info(&pf
->pdev
->dev
, "VSI %d has existing q_vectors\n",
8586 if (vsi
->base_vector
) {
8587 dev_info(&pf
->pdev
->dev
, "VSI %d has non-zero base vector %d\n",
8588 vsi
->seid
, vsi
->base_vector
);
8592 ret
= i40e_vsi_alloc_q_vectors(vsi
);
8594 dev_info(&pf
->pdev
->dev
,
8595 "failed to allocate %d q_vector for VSI %d, ret=%d\n",
8596 vsi
->num_q_vectors
, vsi
->seid
, ret
);
8597 vsi
->num_q_vectors
= 0;
8598 goto vector_setup_out
;
8601 if (vsi
->num_q_vectors
)
8602 vsi
->base_vector
= i40e_get_lump(pf
, pf
->irq_pile
,
8603 vsi
->num_q_vectors
, vsi
->idx
);
8604 if (vsi
->base_vector
< 0) {
8605 dev_info(&pf
->pdev
->dev
,
8606 "failed to get tracking for %d vectors for VSI %d, err=%d\n",
8607 vsi
->num_q_vectors
, vsi
->seid
, vsi
->base_vector
);
8608 i40e_vsi_free_q_vectors(vsi
);
8610 goto vector_setup_out
;
8618 * i40e_vsi_reinit_setup - return and reallocate resources for a VSI
8619 * @vsi: pointer to the vsi.
8621 * This re-allocates a vsi's queue resources.
8623 * Returns pointer to the successfully allocated and configured VSI sw struct
8624 * on success, otherwise returns NULL on failure.
8626 static struct i40e_vsi
*i40e_vsi_reinit_setup(struct i40e_vsi
*vsi
)
8628 struct i40e_pf
*pf
= vsi
->back
;
8632 i40e_put_lump(pf
->qp_pile
, vsi
->base_queue
, vsi
->idx
);
8633 i40e_vsi_clear_rings(vsi
);
8635 i40e_vsi_free_arrays(vsi
, false);
8636 i40e_set_num_rings_in_vsi(vsi
);
8637 ret
= i40e_vsi_alloc_arrays(vsi
, false);
8641 ret
= i40e_get_lump(pf
, pf
->qp_pile
, vsi
->alloc_queue_pairs
, vsi
->idx
);
8643 dev_info(&pf
->pdev
->dev
,
8644 "failed to get tracking for %d queues for VSI %d err=%d\n",
8645 vsi
->alloc_queue_pairs
, vsi
->seid
, ret
);
8648 vsi
->base_queue
= ret
;
8650 /* Update the FW view of the VSI. Force a reset of TC and queue
8651 * layout configurations.
8653 enabled_tc
= pf
->vsi
[pf
->lan_vsi
]->tc_config
.enabled_tc
;
8654 pf
->vsi
[pf
->lan_vsi
]->tc_config
.enabled_tc
= 0;
8655 pf
->vsi
[pf
->lan_vsi
]->seid
= pf
->main_vsi_seid
;
8656 i40e_vsi_config_tc(pf
->vsi
[pf
->lan_vsi
], enabled_tc
);
8658 /* assign it some queues */
8659 ret
= i40e_alloc_rings(vsi
);
8663 /* map all of the rings to the q_vectors */
8664 i40e_vsi_map_rings_to_vectors(vsi
);
8668 i40e_vsi_free_q_vectors(vsi
);
8669 if (vsi
->netdev_registered
) {
8670 vsi
->netdev_registered
= false;
8671 unregister_netdev(vsi
->netdev
);
8672 free_netdev(vsi
->netdev
);
8675 i40e_aq_delete_element(&pf
->hw
, vsi
->seid
, NULL
);
8677 i40e_vsi_clear(vsi
);
8682 * i40e_vsi_setup - Set up a VSI by a given type
8683 * @pf: board private structure
8685 * @uplink_seid: the switch element to link to
8686 * @param1: usage depends upon VSI type. For VF types, indicates VF id
8688 * This allocates the sw VSI structure and its queue resources, then add a VSI
8689 * to the identified VEB.
8691 * Returns pointer to the successfully allocated and configure VSI sw struct on
8692 * success, otherwise returns NULL on failure.
8694 struct i40e_vsi
*i40e_vsi_setup(struct i40e_pf
*pf
, u8 type
,
8695 u16 uplink_seid
, u32 param1
)
8697 struct i40e_vsi
*vsi
= NULL
;
8698 struct i40e_veb
*veb
= NULL
;
8702 /* The requested uplink_seid must be either
8703 * - the PF's port seid
8704 * no VEB is needed because this is the PF
8705 * or this is a Flow Director special case VSI
8706 * - seid of an existing VEB
8707 * - seid of a VSI that owns an existing VEB
8708 * - seid of a VSI that doesn't own a VEB
8709 * a new VEB is created and the VSI becomes the owner
8710 * - seid of the PF VSI, which is what creates the first VEB
8711 * this is a special case of the previous
8713 * Find which uplink_seid we were given and create a new VEB if needed
8715 for (i
= 0; i
< I40E_MAX_VEB
; i
++) {
8716 if (pf
->veb
[i
] && pf
->veb
[i
]->seid
== uplink_seid
) {
8722 if (!veb
&& uplink_seid
!= pf
->mac_seid
) {
8724 for (i
= 0; i
< pf
->num_alloc_vsi
; i
++) {
8725 if (pf
->vsi
[i
] && pf
->vsi
[i
]->seid
== uplink_seid
) {
8731 dev_info(&pf
->pdev
->dev
, "no such uplink_seid %d\n",
8736 if (vsi
->uplink_seid
== pf
->mac_seid
)
8737 veb
= i40e_veb_setup(pf
, 0, pf
->mac_seid
, vsi
->seid
,
8738 vsi
->tc_config
.enabled_tc
);
8739 else if ((vsi
->flags
& I40E_VSI_FLAG_VEB_OWNER
) == 0)
8740 veb
= i40e_veb_setup(pf
, 0, vsi
->uplink_seid
, vsi
->seid
,
8741 vsi
->tc_config
.enabled_tc
);
8743 if (vsi
->seid
!= pf
->vsi
[pf
->lan_vsi
]->seid
) {
8744 dev_info(&vsi
->back
->pdev
->dev
,
8745 "%s: New VSI creation error, uplink seid of LAN VSI expected.\n",
8749 i40e_config_bridge_mode(veb
);
8751 for (i
= 0; i
< I40E_MAX_VEB
&& !veb
; i
++) {
8752 if (pf
->veb
[i
] && pf
->veb
[i
]->seid
== vsi
->uplink_seid
)
8756 dev_info(&pf
->pdev
->dev
, "couldn't add VEB\n");
8760 vsi
->flags
|= I40E_VSI_FLAG_VEB_OWNER
;
8761 uplink_seid
= veb
->seid
;
8764 /* get vsi sw struct */
8765 v_idx
= i40e_vsi_mem_alloc(pf
, type
);
8768 vsi
= pf
->vsi
[v_idx
];
8772 vsi
->veb_idx
= (veb
? veb
->idx
: I40E_NO_VEB
);
8774 if (type
== I40E_VSI_MAIN
)
8775 pf
->lan_vsi
= v_idx
;
8776 else if (type
== I40E_VSI_SRIOV
)
8777 vsi
->vf_id
= param1
;
8778 /* assign it some queues */
8779 ret
= i40e_get_lump(pf
, pf
->qp_pile
, vsi
->alloc_queue_pairs
,
8782 dev_info(&pf
->pdev
->dev
,
8783 "failed to get tracking for %d queues for VSI %d err=%d\n",
8784 vsi
->alloc_queue_pairs
, vsi
->seid
, ret
);
8787 vsi
->base_queue
= ret
;
8789 /* get a VSI from the hardware */
8790 vsi
->uplink_seid
= uplink_seid
;
8791 ret
= i40e_add_vsi(vsi
);
8795 switch (vsi
->type
) {
8796 /* setup the netdev if needed */
8798 case I40E_VSI_VMDQ2
:
8800 ret
= i40e_config_netdev(vsi
);
8803 ret
= register_netdev(vsi
->netdev
);
8806 vsi
->netdev_registered
= true;
8807 netif_carrier_off(vsi
->netdev
);
8808 #ifdef CONFIG_I40E_DCB
8809 /* Setup DCB netlink interface */
8810 i40e_dcbnl_setup(vsi
);
8811 #endif /* CONFIG_I40E_DCB */
8815 /* set up vectors and rings if needed */
8816 ret
= i40e_vsi_setup_vectors(vsi
);
8820 ret
= i40e_alloc_rings(vsi
);
8824 /* map all of the rings to the q_vectors */
8825 i40e_vsi_map_rings_to_vectors(vsi
);
8827 i40e_vsi_reset_stats(vsi
);
8831 /* no netdev or rings for the other VSI types */
8838 i40e_vsi_free_q_vectors(vsi
);
8840 if (vsi
->netdev_registered
) {
8841 vsi
->netdev_registered
= false;
8842 unregister_netdev(vsi
->netdev
);
8843 free_netdev(vsi
->netdev
);
8847 i40e_aq_delete_element(&pf
->hw
, vsi
->seid
, NULL
);
8849 i40e_vsi_clear(vsi
);
8855 * i40e_veb_get_bw_info - Query VEB BW information
8856 * @veb: the veb to query
8858 * Query the Tx scheduler BW configuration data for given VEB
8860 static int i40e_veb_get_bw_info(struct i40e_veb
*veb
)
8862 struct i40e_aqc_query_switching_comp_ets_config_resp ets_data
;
8863 struct i40e_aqc_query_switching_comp_bw_config_resp bw_data
;
8864 struct i40e_pf
*pf
= veb
->pf
;
8865 struct i40e_hw
*hw
= &pf
->hw
;
8870 ret
= i40e_aq_query_switch_comp_bw_config(hw
, veb
->seid
,
8873 dev_info(&pf
->pdev
->dev
,
8874 "query veb bw config failed, aq_err=%d\n",
8875 hw
->aq
.asq_last_status
);
8879 ret
= i40e_aq_query_switch_comp_ets_config(hw
, veb
->seid
,
8882 dev_info(&pf
->pdev
->dev
,
8883 "query veb bw ets config failed, aq_err=%d\n",
8884 hw
->aq
.asq_last_status
);
8888 veb
->bw_limit
= le16_to_cpu(ets_data
.port_bw_limit
);
8889 veb
->bw_max_quanta
= ets_data
.tc_bw_max
;
8890 veb
->is_abs_credits
= bw_data
.absolute_credits_enable
;
8891 veb
->enabled_tc
= ets_data
.tc_valid_bits
;
8892 tc_bw_max
= le16_to_cpu(bw_data
.tc_bw_max
[0]) |
8893 (le16_to_cpu(bw_data
.tc_bw_max
[1]) << 16);
8894 for (i
= 0; i
< I40E_MAX_TRAFFIC_CLASS
; i
++) {
8895 veb
->bw_tc_share_credits
[i
] = bw_data
.tc_bw_share_credits
[i
];
8896 veb
->bw_tc_limit_credits
[i
] =
8897 le16_to_cpu(bw_data
.tc_bw_limits
[i
]);
8898 veb
->bw_tc_max_quanta
[i
] = ((tc_bw_max
>> (i
*4)) & 0x7);
8906 * i40e_veb_mem_alloc - Allocates the next available struct veb in the PF
8907 * @pf: board private structure
8909 * On error: returns error code (negative)
8910 * On success: returns vsi index in PF (positive)
8912 static int i40e_veb_mem_alloc(struct i40e_pf
*pf
)
8915 struct i40e_veb
*veb
;
8918 /* Need to protect the allocation of switch elements at the PF level */
8919 mutex_lock(&pf
->switch_mutex
);
8921 /* VEB list may be fragmented if VEB creation/destruction has
8922 * been happening. We can afford to do a quick scan to look
8923 * for any free slots in the list.
8925 * find next empty veb slot, looping back around if necessary
8928 while ((i
< I40E_MAX_VEB
) && (pf
->veb
[i
] != NULL
))
8930 if (i
>= I40E_MAX_VEB
) {
8932 goto err_alloc_veb
; /* out of VEB slots! */
8935 veb
= kzalloc(sizeof(*veb
), GFP_KERNEL
);
8942 veb
->enabled_tc
= 1;
8947 mutex_unlock(&pf
->switch_mutex
);
8952 * i40e_switch_branch_release - Delete a branch of the switch tree
8953 * @branch: where to start deleting
8955 * This uses recursion to find the tips of the branch to be
8956 * removed, deleting until we get back to and can delete this VEB.
8958 static void i40e_switch_branch_release(struct i40e_veb
*branch
)
8960 struct i40e_pf
*pf
= branch
->pf
;
8961 u16 branch_seid
= branch
->seid
;
8962 u16 veb_idx
= branch
->idx
;
8965 /* release any VEBs on this VEB - RECURSION */
8966 for (i
= 0; i
< I40E_MAX_VEB
; i
++) {
8969 if (pf
->veb
[i
]->uplink_seid
== branch
->seid
)
8970 i40e_switch_branch_release(pf
->veb
[i
]);
8973 /* Release the VSIs on this VEB, but not the owner VSI.
8975 * NOTE: Removing the last VSI on a VEB has the SIDE EFFECT of removing
8976 * the VEB itself, so don't use (*branch) after this loop.
8978 for (i
= 0; i
< pf
->num_alloc_vsi
; i
++) {
8981 if (pf
->vsi
[i
]->uplink_seid
== branch_seid
&&
8982 (pf
->vsi
[i
]->flags
& I40E_VSI_FLAG_VEB_OWNER
) == 0) {
8983 i40e_vsi_release(pf
->vsi
[i
]);
8987 /* There's one corner case where the VEB might not have been
8988 * removed, so double check it here and remove it if needed.
8989 * This case happens if the veb was created from the debugfs
8990 * commands and no VSIs were added to it.
8992 if (pf
->veb
[veb_idx
])
8993 i40e_veb_release(pf
->veb
[veb_idx
]);
8997 * i40e_veb_clear - remove veb struct
8998 * @veb: the veb to remove
9000 static void i40e_veb_clear(struct i40e_veb
*veb
)
9006 struct i40e_pf
*pf
= veb
->pf
;
9008 mutex_lock(&pf
->switch_mutex
);
9009 if (pf
->veb
[veb
->idx
] == veb
)
9010 pf
->veb
[veb
->idx
] = NULL
;
9011 mutex_unlock(&pf
->switch_mutex
);
9018 * i40e_veb_release - Delete a VEB and free its resources
9019 * @veb: the VEB being removed
9021 void i40e_veb_release(struct i40e_veb
*veb
)
9023 struct i40e_vsi
*vsi
= NULL
;
9029 /* find the remaining VSI and check for extras */
9030 for (i
= 0; i
< pf
->num_alloc_vsi
; i
++) {
9031 if (pf
->vsi
[i
] && pf
->vsi
[i
]->uplink_seid
== veb
->seid
) {
9037 dev_info(&pf
->pdev
->dev
,
9038 "can't remove VEB %d with %d VSIs left\n",
9043 /* move the remaining VSI to uplink veb */
9044 vsi
->flags
&= ~I40E_VSI_FLAG_VEB_OWNER
;
9045 if (veb
->uplink_seid
) {
9046 vsi
->uplink_seid
= veb
->uplink_seid
;
9047 if (veb
->uplink_seid
== pf
->mac_seid
)
9048 vsi
->veb_idx
= I40E_NO_VEB
;
9050 vsi
->veb_idx
= veb
->veb_idx
;
9053 vsi
->uplink_seid
= pf
->vsi
[pf
->lan_vsi
]->uplink_seid
;
9054 vsi
->veb_idx
= pf
->vsi
[pf
->lan_vsi
]->veb_idx
;
9057 i40e_aq_delete_element(&pf
->hw
, veb
->seid
, NULL
);
9058 i40e_veb_clear(veb
);
9062 * i40e_add_veb - create the VEB in the switch
9063 * @veb: the VEB to be instantiated
9064 * @vsi: the controlling VSI
9066 static int i40e_add_veb(struct i40e_veb
*veb
, struct i40e_vsi
*vsi
)
9068 bool is_default
= false;
9069 bool is_cloud
= false;
9072 /* get a VEB from the hardware */
9073 ret
= i40e_aq_add_veb(&veb
->pf
->hw
, veb
->uplink_seid
, vsi
->seid
,
9074 veb
->enabled_tc
, is_default
,
9075 is_cloud
, &veb
->seid
, NULL
);
9077 dev_info(&veb
->pf
->pdev
->dev
,
9078 "couldn't add VEB, err %d, aq_err %d\n",
9079 ret
, veb
->pf
->hw
.aq
.asq_last_status
);
9083 /* get statistics counter */
9084 ret
= i40e_aq_get_veb_parameters(&veb
->pf
->hw
, veb
->seid
, NULL
, NULL
,
9085 &veb
->stats_idx
, NULL
, NULL
, NULL
);
9087 dev_info(&veb
->pf
->pdev
->dev
,
9088 "couldn't get VEB statistics idx, err %d, aq_err %d\n",
9089 ret
, veb
->pf
->hw
.aq
.asq_last_status
);
9092 ret
= i40e_veb_get_bw_info(veb
);
9094 dev_info(&veb
->pf
->pdev
->dev
,
9095 "couldn't get VEB bw info, err %d, aq_err %d\n",
9096 ret
, veb
->pf
->hw
.aq
.asq_last_status
);
9097 i40e_aq_delete_element(&veb
->pf
->hw
, veb
->seid
, NULL
);
9101 vsi
->uplink_seid
= veb
->seid
;
9102 vsi
->veb_idx
= veb
->idx
;
9103 vsi
->flags
|= I40E_VSI_FLAG_VEB_OWNER
;
9109 * i40e_veb_setup - Set up a VEB
9110 * @pf: board private structure
9111 * @flags: VEB setup flags
9112 * @uplink_seid: the switch element to link to
9113 * @vsi_seid: the initial VSI seid
9114 * @enabled_tc: Enabled TC bit-map
9116 * This allocates the sw VEB structure and links it into the switch
9117 * It is possible and legal for this to be a duplicate of an already
9118 * existing VEB. It is also possible for both uplink and vsi seids
9119 * to be zero, in order to create a floating VEB.
9121 * Returns pointer to the successfully allocated VEB sw struct on
9122 * success, otherwise returns NULL on failure.
9124 struct i40e_veb
*i40e_veb_setup(struct i40e_pf
*pf
, u16 flags
,
9125 u16 uplink_seid
, u16 vsi_seid
,
9128 struct i40e_veb
*veb
, *uplink_veb
= NULL
;
9129 int vsi_idx
, veb_idx
;
9132 /* if one seid is 0, the other must be 0 to create a floating relay */
9133 if ((uplink_seid
== 0 || vsi_seid
== 0) &&
9134 (uplink_seid
+ vsi_seid
!= 0)) {
9135 dev_info(&pf
->pdev
->dev
,
9136 "one, not both seid's are 0: uplink=%d vsi=%d\n",
9137 uplink_seid
, vsi_seid
);
9141 /* make sure there is such a vsi and uplink */
9142 for (vsi_idx
= 0; vsi_idx
< pf
->num_alloc_vsi
; vsi_idx
++)
9143 if (pf
->vsi
[vsi_idx
] && pf
->vsi
[vsi_idx
]->seid
== vsi_seid
)
9145 if (vsi_idx
>= pf
->num_alloc_vsi
&& vsi_seid
!= 0) {
9146 dev_info(&pf
->pdev
->dev
, "vsi seid %d not found\n",
9151 if (uplink_seid
&& uplink_seid
!= pf
->mac_seid
) {
9152 for (veb_idx
= 0; veb_idx
< I40E_MAX_VEB
; veb_idx
++) {
9153 if (pf
->veb
[veb_idx
] &&
9154 pf
->veb
[veb_idx
]->seid
== uplink_seid
) {
9155 uplink_veb
= pf
->veb
[veb_idx
];
9160 dev_info(&pf
->pdev
->dev
,
9161 "uplink seid %d not found\n", uplink_seid
);
9166 /* get veb sw struct */
9167 veb_idx
= i40e_veb_mem_alloc(pf
);
9170 veb
= pf
->veb
[veb_idx
];
9172 veb
->uplink_seid
= uplink_seid
;
9173 veb
->veb_idx
= (uplink_veb
? uplink_veb
->idx
: I40E_NO_VEB
);
9174 veb
->enabled_tc
= (enabled_tc
? enabled_tc
: 0x1);
9176 /* create the VEB in the switch */
9177 ret
= i40e_add_veb(veb
, pf
->vsi
[vsi_idx
]);
9180 if (vsi_idx
== pf
->lan_vsi
)
9181 pf
->lan_veb
= veb
->idx
;
9186 i40e_veb_clear(veb
);
9192 * i40e_setup_pf_switch_element - set PF vars based on switch type
9193 * @pf: board private structure
9194 * @ele: element we are building info from
9195 * @num_reported: total number of elements
9196 * @printconfig: should we print the contents
9198 * helper function to assist in extracting a few useful SEID values.
9200 static void i40e_setup_pf_switch_element(struct i40e_pf
*pf
,
9201 struct i40e_aqc_switch_config_element_resp
*ele
,
9202 u16 num_reported
, bool printconfig
)
9204 u16 downlink_seid
= le16_to_cpu(ele
->downlink_seid
);
9205 u16 uplink_seid
= le16_to_cpu(ele
->uplink_seid
);
9206 u8 element_type
= ele
->element_type
;
9207 u16 seid
= le16_to_cpu(ele
->seid
);
9210 dev_info(&pf
->pdev
->dev
,
9211 "type=%d seid=%d uplink=%d downlink=%d\n",
9212 element_type
, seid
, uplink_seid
, downlink_seid
);
9214 switch (element_type
) {
9215 case I40E_SWITCH_ELEMENT_TYPE_MAC
:
9216 pf
->mac_seid
= seid
;
9218 case I40E_SWITCH_ELEMENT_TYPE_VEB
:
9220 if (uplink_seid
!= pf
->mac_seid
)
9222 if (pf
->lan_veb
== I40E_NO_VEB
) {
9225 /* find existing or else empty VEB */
9226 for (v
= 0; v
< I40E_MAX_VEB
; v
++) {
9227 if (pf
->veb
[v
] && (pf
->veb
[v
]->seid
== seid
)) {
9232 if (pf
->lan_veb
== I40E_NO_VEB
) {
9233 v
= i40e_veb_mem_alloc(pf
);
9240 pf
->veb
[pf
->lan_veb
]->seid
= seid
;
9241 pf
->veb
[pf
->lan_veb
]->uplink_seid
= pf
->mac_seid
;
9242 pf
->veb
[pf
->lan_veb
]->pf
= pf
;
9243 pf
->veb
[pf
->lan_veb
]->veb_idx
= I40E_NO_VEB
;
9245 case I40E_SWITCH_ELEMENT_TYPE_VSI
:
9246 if (num_reported
!= 1)
9248 /* This is immediately after a reset so we can assume this is
9251 pf
->mac_seid
= uplink_seid
;
9252 pf
->pf_seid
= downlink_seid
;
9253 pf
->main_vsi_seid
= seid
;
9255 dev_info(&pf
->pdev
->dev
,
9256 "pf_seid=%d main_vsi_seid=%d\n",
9257 pf
->pf_seid
, pf
->main_vsi_seid
);
9259 case I40E_SWITCH_ELEMENT_TYPE_PF
:
9260 case I40E_SWITCH_ELEMENT_TYPE_VF
:
9261 case I40E_SWITCH_ELEMENT_TYPE_EMP
:
9262 case I40E_SWITCH_ELEMENT_TYPE_BMC
:
9263 case I40E_SWITCH_ELEMENT_TYPE_PE
:
9264 case I40E_SWITCH_ELEMENT_TYPE_PA
:
9265 /* ignore these for now */
9268 dev_info(&pf
->pdev
->dev
, "unknown element type=%d seid=%d\n",
9269 element_type
, seid
);
9275 * i40e_fetch_switch_configuration - Get switch config from firmware
9276 * @pf: board private structure
9277 * @printconfig: should we print the contents
9279 * Get the current switch configuration from the device and
9280 * extract a few useful SEID values.
9282 int i40e_fetch_switch_configuration(struct i40e_pf
*pf
, bool printconfig
)
9284 struct i40e_aqc_get_switch_config_resp
*sw_config
;
9290 aq_buf
= kzalloc(I40E_AQ_LARGE_BUF
, GFP_KERNEL
);
9294 sw_config
= (struct i40e_aqc_get_switch_config_resp
*)aq_buf
;
9296 u16 num_reported
, num_total
;
9298 ret
= i40e_aq_get_switch_config(&pf
->hw
, sw_config
,
9302 dev_info(&pf
->pdev
->dev
,
9303 "get switch config failed %d aq_err=%x\n",
9304 ret
, pf
->hw
.aq
.asq_last_status
);
9309 num_reported
= le16_to_cpu(sw_config
->header
.num_reported
);
9310 num_total
= le16_to_cpu(sw_config
->header
.num_total
);
9313 dev_info(&pf
->pdev
->dev
,
9314 "header: %d reported %d total\n",
9315 num_reported
, num_total
);
9317 for (i
= 0; i
< num_reported
; i
++) {
9318 struct i40e_aqc_switch_config_element_resp
*ele
=
9319 &sw_config
->element
[i
];
9321 i40e_setup_pf_switch_element(pf
, ele
, num_reported
,
9324 } while (next_seid
!= 0);
9331 * i40e_setup_pf_switch - Setup the HW switch on startup or after reset
9332 * @pf: board private structure
9333 * @reinit: if the Main VSI needs to re-initialized.
9335 * Returns 0 on success, negative value on failure
9337 static int i40e_setup_pf_switch(struct i40e_pf
*pf
, bool reinit
)
9341 /* find out what's out there already */
9342 ret
= i40e_fetch_switch_configuration(pf
, false);
9344 dev_info(&pf
->pdev
->dev
,
9345 "couldn't fetch switch config, err %d, aq_err %d\n",
9346 ret
, pf
->hw
.aq
.asq_last_status
);
9349 i40e_pf_reset_stats(pf
);
9351 /* first time setup */
9352 if (pf
->lan_vsi
== I40E_NO_VSI
|| reinit
) {
9353 struct i40e_vsi
*vsi
= NULL
;
9356 /* Set up the PF VSI associated with the PF's main VSI
9357 * that is already in the HW switch
9359 if (pf
->lan_veb
!= I40E_NO_VEB
&& pf
->veb
[pf
->lan_veb
])
9360 uplink_seid
= pf
->veb
[pf
->lan_veb
]->seid
;
9362 uplink_seid
= pf
->mac_seid
;
9363 if (pf
->lan_vsi
== I40E_NO_VSI
)
9364 vsi
= i40e_vsi_setup(pf
, I40E_VSI_MAIN
, uplink_seid
, 0);
9366 vsi
= i40e_vsi_reinit_setup(pf
->vsi
[pf
->lan_vsi
]);
9368 dev_info(&pf
->pdev
->dev
, "setup of MAIN VSI failed\n");
9369 i40e_fdir_teardown(pf
);
9373 /* force a reset of TC and queue layout configurations */
9374 u8 enabled_tc
= pf
->vsi
[pf
->lan_vsi
]->tc_config
.enabled_tc
;
9375 pf
->vsi
[pf
->lan_vsi
]->tc_config
.enabled_tc
= 0;
9376 pf
->vsi
[pf
->lan_vsi
]->seid
= pf
->main_vsi_seid
;
9377 i40e_vsi_config_tc(pf
->vsi
[pf
->lan_vsi
], enabled_tc
);
9379 i40e_vlan_stripping_disable(pf
->vsi
[pf
->lan_vsi
]);
9381 i40e_fdir_sb_setup(pf
);
9383 /* Setup static PF queue filter control settings */
9384 ret
= i40e_setup_pf_filter_control(pf
);
9386 dev_info(&pf
->pdev
->dev
, "setup_pf_filter_control failed: %d\n",
9388 /* Failure here should not stop continuing other steps */
9391 /* enable RSS in the HW, even for only one queue, as the stack can use
9394 if ((pf
->flags
& I40E_FLAG_RSS_ENABLED
))
9395 i40e_config_rss(pf
);
9397 /* fill in link information and enable LSE reporting */
9398 i40e_aq_get_link_info(&pf
->hw
, true, NULL
, NULL
);
9399 i40e_link_event(pf
);
9401 /* Initialize user-specific link properties */
9402 pf
->fc_autoneg_status
= ((pf
->hw
.phy
.link_info
.an_info
&
9403 I40E_AQ_AN_COMPLETED
) ? true : false);
9411 * i40e_determine_queue_usage - Work out queue distribution
9412 * @pf: board private structure
9414 static void i40e_determine_queue_usage(struct i40e_pf
*pf
)
9418 pf
->num_lan_qps
= 0;
9420 pf
->num_fcoe_qps
= 0;
9423 /* Find the max queues to be put into basic use. We'll always be
9424 * using TC0, whether or not DCB is running, and TC0 will get the
9427 queues_left
= pf
->hw
.func_caps
.num_tx_qp
;
9429 if ((queues_left
== 1) ||
9430 !(pf
->flags
& I40E_FLAG_MSIX_ENABLED
)) {
9431 /* one qp for PF, no queues for anything else */
9433 pf
->rss_size
= pf
->num_lan_qps
= 1;
9435 /* make sure all the fancies are disabled */
9436 pf
->flags
&= ~(I40E_FLAG_RSS_ENABLED
|
9438 I40E_FLAG_FCOE_ENABLED
|
9440 I40E_FLAG_FD_SB_ENABLED
|
9441 I40E_FLAG_FD_ATR_ENABLED
|
9442 I40E_FLAG_DCB_CAPABLE
|
9443 I40E_FLAG_SRIOV_ENABLED
|
9444 I40E_FLAG_VMDQ_ENABLED
);
9445 } else if (!(pf
->flags
& (I40E_FLAG_RSS_ENABLED
|
9446 I40E_FLAG_FD_SB_ENABLED
|
9447 I40E_FLAG_FD_ATR_ENABLED
|
9448 I40E_FLAG_DCB_CAPABLE
))) {
9450 pf
->rss_size
= pf
->num_lan_qps
= 1;
9451 queues_left
-= pf
->num_lan_qps
;
9453 pf
->flags
&= ~(I40E_FLAG_RSS_ENABLED
|
9455 I40E_FLAG_FCOE_ENABLED
|
9457 I40E_FLAG_FD_SB_ENABLED
|
9458 I40E_FLAG_FD_ATR_ENABLED
|
9459 I40E_FLAG_DCB_ENABLED
|
9460 I40E_FLAG_VMDQ_ENABLED
);
9462 /* Not enough queues for all TCs */
9463 if ((pf
->flags
& I40E_FLAG_DCB_CAPABLE
) &&
9464 (queues_left
< I40E_MAX_TRAFFIC_CLASS
)) {
9465 pf
->flags
&= ~I40E_FLAG_DCB_CAPABLE
;
9466 dev_info(&pf
->pdev
->dev
, "not enough queues for DCB. DCB is disabled.\n");
9468 pf
->num_lan_qps
= max_t(int, pf
->rss_size_max
,
9470 pf
->num_lan_qps
= min_t(int, pf
->num_lan_qps
,
9471 pf
->hw
.func_caps
.num_tx_qp
);
9473 queues_left
-= pf
->num_lan_qps
;
9477 if (pf
->flags
& I40E_FLAG_FCOE_ENABLED
) {
9478 if (I40E_DEFAULT_FCOE
<= queues_left
) {
9479 pf
->num_fcoe_qps
= I40E_DEFAULT_FCOE
;
9480 } else if (I40E_MINIMUM_FCOE
<= queues_left
) {
9481 pf
->num_fcoe_qps
= I40E_MINIMUM_FCOE
;
9483 pf
->num_fcoe_qps
= 0;
9484 pf
->flags
&= ~I40E_FLAG_FCOE_ENABLED
;
9485 dev_info(&pf
->pdev
->dev
, "not enough queues for FCoE. FCoE feature will be disabled\n");
9488 queues_left
-= pf
->num_fcoe_qps
;
9492 if (pf
->flags
& I40E_FLAG_FD_SB_ENABLED
) {
9493 if (queues_left
> 1) {
9494 queues_left
-= 1; /* save 1 queue for FD */
9496 pf
->flags
&= ~I40E_FLAG_FD_SB_ENABLED
;
9497 dev_info(&pf
->pdev
->dev
, "not enough queues for Flow Director. Flow Director feature is disabled\n");
9501 if ((pf
->flags
& I40E_FLAG_SRIOV_ENABLED
) &&
9502 pf
->num_vf_qps
&& pf
->num_req_vfs
&& queues_left
) {
9503 pf
->num_req_vfs
= min_t(int, pf
->num_req_vfs
,
9504 (queues_left
/ pf
->num_vf_qps
));
9505 queues_left
-= (pf
->num_req_vfs
* pf
->num_vf_qps
);
9508 if ((pf
->flags
& I40E_FLAG_VMDQ_ENABLED
) &&
9509 pf
->num_vmdq_vsis
&& pf
->num_vmdq_qps
&& queues_left
) {
9510 pf
->num_vmdq_vsis
= min_t(int, pf
->num_vmdq_vsis
,
9511 (queues_left
/ pf
->num_vmdq_qps
));
9512 queues_left
-= (pf
->num_vmdq_vsis
* pf
->num_vmdq_qps
);
9515 pf
->queues_left
= queues_left
;
9517 dev_info(&pf
->pdev
->dev
, "fcoe queues = %d\n", pf
->num_fcoe_qps
);
9522 * i40e_setup_pf_filter_control - Setup PF static filter control
9523 * @pf: PF to be setup
9525 * i40e_setup_pf_filter_control sets up a PF's initial filter control
9526 * settings. If PE/FCoE are enabled then it will also set the per PF
9527 * based filter sizes required for them. It also enables Flow director,
9528 * ethertype and macvlan type filter settings for the pf.
9530 * Returns 0 on success, negative on failure
9532 static int i40e_setup_pf_filter_control(struct i40e_pf
*pf
)
9534 struct i40e_filter_control_settings
*settings
= &pf
->filter_settings
;
9536 settings
->hash_lut_size
= I40E_HASH_LUT_SIZE_128
;
9538 /* Flow Director is enabled */
9539 if (pf
->flags
& (I40E_FLAG_FD_SB_ENABLED
| I40E_FLAG_FD_ATR_ENABLED
))
9540 settings
->enable_fdir
= true;
9542 /* Ethtype and MACVLAN filters enabled for PF */
9543 settings
->enable_ethtype
= true;
9544 settings
->enable_macvlan
= true;
9546 if (i40e_set_filter_control(&pf
->hw
, settings
))
9552 #define INFO_STRING_LEN 255
9553 static void i40e_print_features(struct i40e_pf
*pf
)
9555 struct i40e_hw
*hw
= &pf
->hw
;
9558 string
= kzalloc(INFO_STRING_LEN
, GFP_KERNEL
);
9560 dev_err(&pf
->pdev
->dev
, "Features string allocation failed\n");
9566 buf
+= sprintf(string
, "Features: PF-id[%d] ", hw
->pf_id
);
9567 #ifdef CONFIG_PCI_IOV
9568 buf
+= sprintf(buf
, "VFs: %d ", pf
->num_req_vfs
);
9570 buf
+= sprintf(buf
, "VSIs: %d QP: %d RX: %s ",
9571 pf
->hw
.func_caps
.num_vsis
,
9572 pf
->vsi
[pf
->lan_vsi
]->num_queue_pairs
,
9573 pf
->flags
& I40E_FLAG_RX_PS_ENABLED
? "PS" : "1BUF");
9575 if (pf
->flags
& I40E_FLAG_RSS_ENABLED
)
9576 buf
+= sprintf(buf
, "RSS ");
9577 if (pf
->flags
& I40E_FLAG_FD_ATR_ENABLED
)
9578 buf
+= sprintf(buf
, "FD_ATR ");
9579 if (pf
->flags
& I40E_FLAG_FD_SB_ENABLED
) {
9580 buf
+= sprintf(buf
, "FD_SB ");
9581 buf
+= sprintf(buf
, "NTUPLE ");
9583 if (pf
->flags
& I40E_FLAG_DCB_CAPABLE
)
9584 buf
+= sprintf(buf
, "DCB ");
9585 if (pf
->flags
& I40E_FLAG_PTP
)
9586 buf
+= sprintf(buf
, "PTP ");
9588 if (pf
->flags
& I40E_FLAG_FCOE_ENABLED
)
9589 buf
+= sprintf(buf
, "FCOE ");
9592 BUG_ON(buf
> (string
+ INFO_STRING_LEN
));
9593 dev_info(&pf
->pdev
->dev
, "%s\n", string
);
9598 * i40e_probe - Device initialization routine
9599 * @pdev: PCI device information struct
9600 * @ent: entry in i40e_pci_tbl
9602 * i40e_probe initializes a PF identified by a pci_dev structure.
9603 * The OS initialization, configuring of the PF private structure,
9604 * and a hardware reset occur.
9606 * Returns 0 on success, negative on failure
9608 static int i40e_probe(struct pci_dev
*pdev
, const struct pci_device_id
*ent
)
9610 struct i40e_aq_get_phy_abilities_resp abilities
;
9611 unsigned long ioremap_len
;
9614 static u16 pfs_found
;
9620 err
= pci_enable_device_mem(pdev
);
9624 /* set up for high or low dma */
9625 err
= dma_set_mask_and_coherent(&pdev
->dev
, DMA_BIT_MASK(64));
9627 err
= dma_set_mask_and_coherent(&pdev
->dev
, DMA_BIT_MASK(32));
9630 "DMA configuration failed: 0x%x\n", err
);
9635 /* set up pci connections */
9636 err
= pci_request_selected_regions(pdev
, pci_select_bars(pdev
,
9637 IORESOURCE_MEM
), i40e_driver_name
);
9639 dev_info(&pdev
->dev
,
9640 "pci_request_selected_regions failed %d\n", err
);
9644 pci_enable_pcie_error_reporting(pdev
);
9645 pci_set_master(pdev
);
9647 /* Now that we have a PCI connection, we need to do the
9648 * low level device setup. This is primarily setting up
9649 * the Admin Queue structures and then querying for the
9650 * device's current profile information.
9652 pf
= kzalloc(sizeof(*pf
), GFP_KERNEL
);
9659 set_bit(__I40E_DOWN
, &pf
->state
);
9664 ioremap_len
= min_t(unsigned long, pci_resource_len(pdev
, 0),
9665 I40E_MAX_CSR_SPACE
);
9667 hw
->hw_addr
= ioremap(pci_resource_start(pdev
, 0), ioremap_len
);
9670 dev_info(&pdev
->dev
, "ioremap(0x%04x, 0x%04x) failed: 0x%x\n",
9671 (unsigned int)pci_resource_start(pdev
, 0),
9672 (unsigned int)pci_resource_len(pdev
, 0), err
);
9675 hw
->vendor_id
= pdev
->vendor
;
9676 hw
->device_id
= pdev
->device
;
9677 pci_read_config_byte(pdev
, PCI_REVISION_ID
, &hw
->revision_id
);
9678 hw
->subsystem_vendor_id
= pdev
->subsystem_vendor
;
9679 hw
->subsystem_device_id
= pdev
->subsystem_device
;
9680 hw
->bus
.device
= PCI_SLOT(pdev
->devfn
);
9681 hw
->bus
.func
= PCI_FUNC(pdev
->devfn
);
9682 pf
->instance
= pfs_found
;
9685 pf
->msg_enable
= pf
->hw
.debug_mask
;
9686 pf
->msg_enable
= debug
;
9689 /* do a special CORER for clearing PXE mode once at init */
9690 if (hw
->revision_id
== 0 &&
9691 (rd32(hw
, I40E_GLLAN_RCTL_0
) & I40E_GLLAN_RCTL_0_PXE_MODE_MASK
)) {
9692 wr32(hw
, I40E_GLGEN_RTRIG
, I40E_GLGEN_RTRIG_CORER_MASK
);
9697 i40e_clear_pxe_mode(hw
);
9700 /* Reset here to make sure all is clean and to define PF 'n' */
9702 err
= i40e_pf_reset(hw
);
9704 dev_info(&pdev
->dev
, "Initial pf_reset failed: %d\n", err
);
9709 hw
->aq
.num_arq_entries
= I40E_AQ_LEN
;
9710 hw
->aq
.num_asq_entries
= I40E_AQ_LEN
;
9711 hw
->aq
.arq_buf_size
= I40E_MAX_AQ_BUF_SIZE
;
9712 hw
->aq
.asq_buf_size
= I40E_MAX_AQ_BUF_SIZE
;
9713 pf
->adminq_work_limit
= I40E_AQ_WORK_LIMIT
;
9715 snprintf(pf
->int_name
, sizeof(pf
->int_name
) - 1,
9717 dev_driver_string(&pf
->pdev
->dev
), dev_name(&pdev
->dev
));
9719 err
= i40e_init_shared_code(hw
);
9721 dev_info(&pdev
->dev
, "init_shared_code failed: %d\n", err
);
9725 /* set up a default setting for link flow control */
9726 pf
->hw
.fc
.requested_mode
= I40E_FC_NONE
;
9728 err
= i40e_init_adminq(hw
);
9729 dev_info(&pdev
->dev
, "%s\n", i40e_fw_version_str(hw
));
9731 dev_info(&pdev
->dev
,
9732 "The driver for the device stopped because the NVM image is newer than expected. You must install the most recent version of the network driver.\n");
9736 if (hw
->aq
.api_maj_ver
== I40E_FW_API_VERSION_MAJOR
&&
9737 hw
->aq
.api_min_ver
> I40E_FW_API_VERSION_MINOR
)
9738 dev_info(&pdev
->dev
,
9739 "The driver for the device detected a newer version of the NVM image than expected. Please install the most recent version of the network driver.\n");
9740 else if (hw
->aq
.api_maj_ver
< I40E_FW_API_VERSION_MAJOR
||
9741 hw
->aq
.api_min_ver
< (I40E_FW_API_VERSION_MINOR
- 1))
9742 dev_info(&pdev
->dev
,
9743 "The driver for the device detected an older version of the NVM image than expected. Please update the NVM image.\n");
9745 i40e_verify_eeprom(pf
);
9747 /* Rev 0 hardware was never productized */
9748 if (hw
->revision_id
< 1)
9749 dev_warn(&pdev
->dev
, "This device is a pre-production adapter/LOM. Please be aware there may be issues with your hardware. If you are experiencing problems please contact your Intel or hardware representative who provided you with this hardware.\n");
9751 i40e_clear_pxe_mode(hw
);
9752 err
= i40e_get_capabilities(pf
);
9754 goto err_adminq_setup
;
9756 err
= i40e_sw_init(pf
);
9758 dev_info(&pdev
->dev
, "sw_init failed: %d\n", err
);
9762 err
= i40e_init_lan_hmc(hw
, hw
->func_caps
.num_tx_qp
,
9763 hw
->func_caps
.num_rx_qp
,
9764 pf
->fcoe_hmc_cntx_num
, pf
->fcoe_hmc_filt_num
);
9766 dev_info(&pdev
->dev
, "init_lan_hmc failed: %d\n", err
);
9767 goto err_init_lan_hmc
;
9770 err
= i40e_configure_lan_hmc(hw
, I40E_HMC_MODEL_DIRECT_ONLY
);
9772 dev_info(&pdev
->dev
, "configure_lan_hmc failed: %d\n", err
);
9774 goto err_configure_lan_hmc
;
9777 /* Disable LLDP for NICs that have firmware versions lower than v4.3.
9778 * Ignore error return codes because if it was already disabled via
9779 * hardware settings this will fail
9781 if (((pf
->hw
.aq
.fw_maj_ver
== 4) && (pf
->hw
.aq
.fw_min_ver
< 3)) ||
9782 (pf
->hw
.aq
.fw_maj_ver
< 4)) {
9783 dev_info(&pdev
->dev
, "Stopping firmware LLDP agent.\n");
9784 i40e_aq_stop_lldp(hw
, true, NULL
);
9787 i40e_get_mac_addr(hw
, hw
->mac
.addr
);
9788 if (!is_valid_ether_addr(hw
->mac
.addr
)) {
9789 dev_info(&pdev
->dev
, "invalid MAC address %pM\n", hw
->mac
.addr
);
9793 dev_info(&pdev
->dev
, "MAC address: %pM\n", hw
->mac
.addr
);
9794 ether_addr_copy(hw
->mac
.perm_addr
, hw
->mac
.addr
);
9795 i40e_get_port_mac_addr(hw
, hw
->mac
.port_addr
);
9796 if (is_valid_ether_addr(hw
->mac
.port_addr
))
9797 pf
->flags
|= I40E_FLAG_PORT_ID_VALID
;
9799 err
= i40e_get_san_mac_addr(hw
, hw
->mac
.san_addr
);
9801 dev_info(&pdev
->dev
,
9802 "(non-fatal) SAN MAC retrieval failed: %d\n", err
);
9803 if (!is_valid_ether_addr(hw
->mac
.san_addr
)) {
9804 dev_warn(&pdev
->dev
, "invalid SAN MAC address %pM, falling back to LAN MAC\n",
9806 ether_addr_copy(hw
->mac
.san_addr
, hw
->mac
.addr
);
9808 dev_info(&pf
->pdev
->dev
, "SAN MAC: %pM\n", hw
->mac
.san_addr
);
9809 #endif /* I40E_FCOE */
9811 pci_set_drvdata(pdev
, pf
);
9812 pci_save_state(pdev
);
9813 #ifdef CONFIG_I40E_DCB
9814 err
= i40e_init_pf_dcb(pf
);
9816 dev_info(&pdev
->dev
, "DCB init failed %d, disabled\n", err
);
9817 pf
->flags
&= ~I40E_FLAG_DCB_CAPABLE
;
9818 /* Continue without DCB enabled */
9820 #endif /* CONFIG_I40E_DCB */
9822 /* set up periodic task facility */
9823 setup_timer(&pf
->service_timer
, i40e_service_timer
, (unsigned long)pf
);
9824 pf
->service_timer_period
= HZ
;
9826 INIT_WORK(&pf
->service_task
, i40e_service_task
);
9827 clear_bit(__I40E_SERVICE_SCHED
, &pf
->state
);
9828 pf
->flags
|= I40E_FLAG_NEED_LINK_UPDATE
;
9829 pf
->link_check_timeout
= jiffies
;
9831 /* WoL defaults to disabled */
9833 device_set_wakeup_enable(&pf
->pdev
->dev
, pf
->wol_en
);
9835 /* set up the main switch operations */
9836 i40e_determine_queue_usage(pf
);
9837 err
= i40e_init_interrupt_scheme(pf
);
9839 goto err_switch_setup
;
9841 /* The number of VSIs reported by the FW is the minimum guaranteed
9842 * to us; HW supports far more and we share the remaining pool with
9843 * the other PFs. We allocate space for more than the guarantee with
9844 * the understanding that we might not get them all later.
9846 if (pf
->hw
.func_caps
.num_vsis
< I40E_MIN_VSI_ALLOC
)
9847 pf
->num_alloc_vsi
= I40E_MIN_VSI_ALLOC
;
9849 pf
->num_alloc_vsi
= pf
->hw
.func_caps
.num_vsis
;
9851 /* Set up the *vsi struct and our local tracking of the MAIN PF vsi. */
9852 len
= sizeof(struct i40e_vsi
*) * pf
->num_alloc_vsi
;
9853 pf
->vsi
= kzalloc(len
, GFP_KERNEL
);
9856 goto err_switch_setup
;
9859 err
= i40e_setup_pf_switch(pf
, false);
9861 dev_info(&pdev
->dev
, "setup_pf_switch failed: %d\n", err
);
9864 /* if FDIR VSI was set up, start it now */
9865 for (i
= 0; i
< pf
->num_alloc_vsi
; i
++) {
9866 if (pf
->vsi
[i
] && pf
->vsi
[i
]->type
== I40E_VSI_FDIR
) {
9867 i40e_vsi_open(pf
->vsi
[i
]);
9872 /* driver is only interested in link up/down and module qualification
9873 * reports from firmware
9875 err
= i40e_aq_set_phy_int_mask(&pf
->hw
,
9876 I40E_AQ_EVENT_LINK_UPDOWN
|
9877 I40E_AQ_EVENT_MODULE_QUAL_FAIL
, NULL
);
9879 dev_info(&pf
->pdev
->dev
, "set phy mask fail, aq_err %d\n", err
);
9881 if (((pf
->hw
.aq
.fw_maj_ver
== 4) && (pf
->hw
.aq
.fw_min_ver
< 33)) ||
9882 (pf
->hw
.aq
.fw_maj_ver
< 4)) {
9884 err
= i40e_aq_set_link_restart_an(&pf
->hw
, true, NULL
);
9886 dev_info(&pf
->pdev
->dev
, "link restart failed, aq_err=%d\n",
9887 pf
->hw
.aq
.asq_last_status
);
9889 /* The main driver is (mostly) up and happy. We need to set this state
9890 * before setting up the misc vector or we get a race and the vector
9891 * ends up disabled forever.
9893 clear_bit(__I40E_DOWN
, &pf
->state
);
9895 /* In case of MSIX we are going to setup the misc vector right here
9896 * to handle admin queue events etc. In case of legacy and MSI
9897 * the misc functionality and queue processing is combined in
9898 * the same vector and that gets setup at open.
9900 if (pf
->flags
& I40E_FLAG_MSIX_ENABLED
) {
9901 err
= i40e_setup_misc_vector(pf
);
9903 dev_info(&pdev
->dev
,
9904 "setup of misc vector failed: %d\n", err
);
9909 #ifdef CONFIG_PCI_IOV
9910 /* prep for VF support */
9911 if ((pf
->flags
& I40E_FLAG_SRIOV_ENABLED
) &&
9912 (pf
->flags
& I40E_FLAG_MSIX_ENABLED
) &&
9913 !test_bit(__I40E_BAD_EEPROM
, &pf
->state
)) {
9916 /* disable link interrupts for VFs */
9917 val
= rd32(hw
, I40E_PFGEN_PORTMDIO_NUM
);
9918 val
&= ~I40E_PFGEN_PORTMDIO_NUM_VFLINK_STAT_ENA_MASK
;
9919 wr32(hw
, I40E_PFGEN_PORTMDIO_NUM
, val
);
9922 if (pci_num_vf(pdev
)) {
9923 dev_info(&pdev
->dev
,
9924 "Active VFs found, allocating resources.\n");
9925 err
= i40e_alloc_vfs(pf
, pci_num_vf(pdev
));
9927 dev_info(&pdev
->dev
,
9928 "Error %d allocating resources for existing VFs\n",
9932 #endif /* CONFIG_PCI_IOV */
9936 i40e_dbg_pf_init(pf
);
9938 /* tell the firmware that we're starting */
9939 i40e_send_version(pf
);
9941 /* since everything's happy, start the service_task timer */
9942 mod_timer(&pf
->service_timer
,
9943 round_jiffies(jiffies
+ pf
->service_timer_period
));
9946 /* create FCoE interface */
9947 i40e_fcoe_vsi_setup(pf
);
9950 /* Get the negotiated link width and speed from PCI config space */
9951 pcie_capability_read_word(pf
->pdev
, PCI_EXP_LNKSTA
, &link_status
);
9953 i40e_set_pci_config_data(hw
, link_status
);
9955 dev_info(&pdev
->dev
, "PCI-Express: %s %s\n",
9956 (hw
->bus
.speed
== i40e_bus_speed_8000
? "Speed 8.0GT/s" :
9957 hw
->bus
.speed
== i40e_bus_speed_5000
? "Speed 5.0GT/s" :
9958 hw
->bus
.speed
== i40e_bus_speed_2500
? "Speed 2.5GT/s" :
9960 (hw
->bus
.width
== i40e_bus_width_pcie_x8
? "Width x8" :
9961 hw
->bus
.width
== i40e_bus_width_pcie_x4
? "Width x4" :
9962 hw
->bus
.width
== i40e_bus_width_pcie_x2
? "Width x2" :
9963 hw
->bus
.width
== i40e_bus_width_pcie_x1
? "Width x1" :
9966 if (hw
->bus
.width
< i40e_bus_width_pcie_x8
||
9967 hw
->bus
.speed
< i40e_bus_speed_8000
) {
9968 dev_warn(&pdev
->dev
, "PCI-Express bandwidth available for this device may be insufficient for optimal performance.\n");
9969 dev_warn(&pdev
->dev
, "Please move the device to a different PCI-e link with more lanes and/or higher transfer rate.\n");
9972 /* get the requested speeds from the fw */
9973 err
= i40e_aq_get_phy_capabilities(hw
, false, false, &abilities
, NULL
);
9975 dev_info(&pf
->pdev
->dev
, "get phy abilities failed, aq_err %d, advertised speed settings may not be correct\n",
9977 pf
->hw
.phy
.link_info
.requested_speeds
= abilities
.link_speed
;
9979 /* print a string summarizing features */
9980 i40e_print_features(pf
);
9984 /* Unwind what we've done if something failed in the setup */
9986 set_bit(__I40E_DOWN
, &pf
->state
);
9987 i40e_clear_interrupt_scheme(pf
);
9990 i40e_reset_interrupt_capability(pf
);
9991 del_timer_sync(&pf
->service_timer
);
9993 err_configure_lan_hmc
:
9994 (void)i40e_shutdown_lan_hmc(hw
);
9999 (void)i40e_shutdown_adminq(hw
);
10001 iounmap(hw
->hw_addr
);
10005 pci_disable_pcie_error_reporting(pdev
);
10006 pci_release_selected_regions(pdev
,
10007 pci_select_bars(pdev
, IORESOURCE_MEM
));
10010 pci_disable_device(pdev
);
10015 * i40e_remove - Device removal routine
10016 * @pdev: PCI device information struct
10018 * i40e_remove is called by the PCI subsystem to alert the driver
10019 * that is should release a PCI device. This could be caused by a
10020 * Hot-Plug event, or because the driver is going to be removed from
10023 static void i40e_remove(struct pci_dev
*pdev
)
10025 struct i40e_pf
*pf
= pci_get_drvdata(pdev
);
10026 i40e_status ret_code
;
10029 i40e_dbg_pf_exit(pf
);
10033 /* no more scheduling of any task */
10034 set_bit(__I40E_DOWN
, &pf
->state
);
10035 del_timer_sync(&pf
->service_timer
);
10036 cancel_work_sync(&pf
->service_task
);
10037 i40e_fdir_teardown(pf
);
10039 if (pf
->flags
& I40E_FLAG_SRIOV_ENABLED
) {
10041 pf
->flags
&= ~I40E_FLAG_SRIOV_ENABLED
;
10044 i40e_fdir_teardown(pf
);
10046 /* If there is a switch structure or any orphans, remove them.
10047 * This will leave only the PF's VSI remaining.
10049 for (i
= 0; i
< I40E_MAX_VEB
; i
++) {
10053 if (pf
->veb
[i
]->uplink_seid
== pf
->mac_seid
||
10054 pf
->veb
[i
]->uplink_seid
== 0)
10055 i40e_switch_branch_release(pf
->veb
[i
]);
10058 /* Now we can shutdown the PF's VSI, just before we kill
10061 if (pf
->vsi
[pf
->lan_vsi
])
10062 i40e_vsi_release(pf
->vsi
[pf
->lan_vsi
]);
10064 /* shutdown and destroy the HMC */
10065 if (pf
->hw
.hmc
.hmc_obj
) {
10066 ret_code
= i40e_shutdown_lan_hmc(&pf
->hw
);
10068 dev_warn(&pdev
->dev
,
10069 "Failed to destroy the HMC resources: %d\n",
10073 /* shutdown the adminq */
10074 ret_code
= i40e_shutdown_adminq(&pf
->hw
);
10076 dev_warn(&pdev
->dev
,
10077 "Failed to destroy the Admin Queue resources: %d\n",
10080 /* Clear all dynamic memory lists of rings, q_vectors, and VSIs */
10081 i40e_clear_interrupt_scheme(pf
);
10082 for (i
= 0; i
< pf
->num_alloc_vsi
; i
++) {
10084 i40e_vsi_clear_rings(pf
->vsi
[i
]);
10085 i40e_vsi_clear(pf
->vsi
[i
]);
10090 for (i
= 0; i
< I40E_MAX_VEB
; i
++) {
10095 kfree(pf
->qp_pile
);
10098 iounmap(pf
->hw
.hw_addr
);
10100 pci_release_selected_regions(pdev
,
10101 pci_select_bars(pdev
, IORESOURCE_MEM
));
10103 pci_disable_pcie_error_reporting(pdev
);
10104 pci_disable_device(pdev
);
10108 * i40e_pci_error_detected - warning that something funky happened in PCI land
10109 * @pdev: PCI device information struct
10111 * Called to warn that something happened and the error handling steps
10112 * are in progress. Allows the driver to quiesce things, be ready for
10115 static pci_ers_result_t
i40e_pci_error_detected(struct pci_dev
*pdev
,
10116 enum pci_channel_state error
)
10118 struct i40e_pf
*pf
= pci_get_drvdata(pdev
);
10120 dev_info(&pdev
->dev
, "%s: error %d\n", __func__
, error
);
10122 /* shutdown all operations */
10123 if (!test_bit(__I40E_SUSPENDED
, &pf
->state
)) {
10125 i40e_prep_for_reset(pf
);
10129 /* Request a slot reset */
10130 return PCI_ERS_RESULT_NEED_RESET
;
10134 * i40e_pci_error_slot_reset - a PCI slot reset just happened
10135 * @pdev: PCI device information struct
10137 * Called to find if the driver can work with the device now that
10138 * the pci slot has been reset. If a basic connection seems good
10139 * (registers are readable and have sane content) then return a
10140 * happy little PCI_ERS_RESULT_xxx.
10142 static pci_ers_result_t
i40e_pci_error_slot_reset(struct pci_dev
*pdev
)
10144 struct i40e_pf
*pf
= pci_get_drvdata(pdev
);
10145 pci_ers_result_t result
;
10149 dev_info(&pdev
->dev
, "%s\n", __func__
);
10150 if (pci_enable_device_mem(pdev
)) {
10151 dev_info(&pdev
->dev
,
10152 "Cannot re-enable PCI device after reset.\n");
10153 result
= PCI_ERS_RESULT_DISCONNECT
;
10155 pci_set_master(pdev
);
10156 pci_restore_state(pdev
);
10157 pci_save_state(pdev
);
10158 pci_wake_from_d3(pdev
, false);
10160 reg
= rd32(&pf
->hw
, I40E_GLGEN_RTRIG
);
10162 result
= PCI_ERS_RESULT_RECOVERED
;
10164 result
= PCI_ERS_RESULT_DISCONNECT
;
10167 err
= pci_cleanup_aer_uncorrect_error_status(pdev
);
10169 dev_info(&pdev
->dev
,
10170 "pci_cleanup_aer_uncorrect_error_status failed 0x%0x\n",
10172 /* non-fatal, continue */
10179 * i40e_pci_error_resume - restart operations after PCI error recovery
10180 * @pdev: PCI device information struct
10182 * Called to allow the driver to bring things back up after PCI error
10183 * and/or reset recovery has finished.
10185 static void i40e_pci_error_resume(struct pci_dev
*pdev
)
10187 struct i40e_pf
*pf
= pci_get_drvdata(pdev
);
10189 dev_info(&pdev
->dev
, "%s\n", __func__
);
10190 if (test_bit(__I40E_SUSPENDED
, &pf
->state
))
10194 i40e_handle_reset_warning(pf
);
10199 * i40e_shutdown - PCI callback for shutting down
10200 * @pdev: PCI device information struct
10202 static void i40e_shutdown(struct pci_dev
*pdev
)
10204 struct i40e_pf
*pf
= pci_get_drvdata(pdev
);
10205 struct i40e_hw
*hw
= &pf
->hw
;
10207 set_bit(__I40E_SUSPENDED
, &pf
->state
);
10208 set_bit(__I40E_DOWN
, &pf
->state
);
10210 i40e_prep_for_reset(pf
);
10213 wr32(hw
, I40E_PFPM_APM
, (pf
->wol_en
? I40E_PFPM_APM_APME_MASK
: 0));
10214 wr32(hw
, I40E_PFPM_WUFC
, (pf
->wol_en
? I40E_PFPM_WUFC_MAG_MASK
: 0));
10216 i40e_clear_interrupt_scheme(pf
);
10218 if (system_state
== SYSTEM_POWER_OFF
) {
10219 pci_wake_from_d3(pdev
, pf
->wol_en
);
10220 pci_set_power_state(pdev
, PCI_D3hot
);
10226 * i40e_suspend - PCI callback for moving to D3
10227 * @pdev: PCI device information struct
10229 static int i40e_suspend(struct pci_dev
*pdev
, pm_message_t state
)
10231 struct i40e_pf
*pf
= pci_get_drvdata(pdev
);
10232 struct i40e_hw
*hw
= &pf
->hw
;
10234 set_bit(__I40E_SUSPENDED
, &pf
->state
);
10235 set_bit(__I40E_DOWN
, &pf
->state
);
10236 del_timer_sync(&pf
->service_timer
);
10237 cancel_work_sync(&pf
->service_task
);
10238 i40e_fdir_teardown(pf
);
10241 i40e_prep_for_reset(pf
);
10244 wr32(hw
, I40E_PFPM_APM
, (pf
->wol_en
? I40E_PFPM_APM_APME_MASK
: 0));
10245 wr32(hw
, I40E_PFPM_WUFC
, (pf
->wol_en
? I40E_PFPM_WUFC_MAG_MASK
: 0));
10247 pci_wake_from_d3(pdev
, pf
->wol_en
);
10248 pci_set_power_state(pdev
, PCI_D3hot
);
10254 * i40e_resume - PCI callback for waking up from D3
10255 * @pdev: PCI device information struct
10257 static int i40e_resume(struct pci_dev
*pdev
)
10259 struct i40e_pf
*pf
= pci_get_drvdata(pdev
);
10262 pci_set_power_state(pdev
, PCI_D0
);
10263 pci_restore_state(pdev
);
10264 /* pci_restore_state() clears dev->state_saves, so
10265 * call pci_save_state() again to restore it.
10267 pci_save_state(pdev
);
10269 err
= pci_enable_device_mem(pdev
);
10271 dev_err(&pdev
->dev
,
10272 "%s: Cannot enable PCI device from suspend\n",
10276 pci_set_master(pdev
);
10278 /* no wakeup events while running */
10279 pci_wake_from_d3(pdev
, false);
10281 /* handling the reset will rebuild the device state */
10282 if (test_and_clear_bit(__I40E_SUSPENDED
, &pf
->state
)) {
10283 clear_bit(__I40E_DOWN
, &pf
->state
);
10285 i40e_reset_and_rebuild(pf
, false);
10293 static const struct pci_error_handlers i40e_err_handler
= {
10294 .error_detected
= i40e_pci_error_detected
,
10295 .slot_reset
= i40e_pci_error_slot_reset
,
10296 .resume
= i40e_pci_error_resume
,
10299 static struct pci_driver i40e_driver
= {
10300 .name
= i40e_driver_name
,
10301 .id_table
= i40e_pci_tbl
,
10302 .probe
= i40e_probe
,
10303 .remove
= i40e_remove
,
10305 .suspend
= i40e_suspend
,
10306 .resume
= i40e_resume
,
10308 .shutdown
= i40e_shutdown
,
10309 .err_handler
= &i40e_err_handler
,
10310 .sriov_configure
= i40e_pci_sriov_configure
,
10314 * i40e_init_module - Driver registration routine
10316 * i40e_init_module is the first routine called when the driver is
10317 * loaded. All it does is register with the PCI subsystem.
10319 static int __init
i40e_init_module(void)
10321 pr_info("%s: %s - version %s\n", i40e_driver_name
,
10322 i40e_driver_string
, i40e_driver_version_str
);
10323 pr_info("%s: %s\n", i40e_driver_name
, i40e_copyright
);
10326 return pci_register_driver(&i40e_driver
);
10328 module_init(i40e_init_module
);
10331 * i40e_exit_module - Driver exit cleanup routine
10333 * i40e_exit_module is called just before the driver is removed
10336 static void __exit
i40e_exit_module(void)
10338 pci_unregister_driver(&i40e_driver
);
10341 module_exit(i40e_exit_module
);