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 if (pf
->flags
& I40E_FLAG_VEB_MODE_ENABLED
)
6101 veb
->bridge_mode
= BRIDGE_MODE_VEB
;
6103 veb
->bridge_mode
= BRIDGE_MODE_VEPA
;
6104 i40e_config_bridge_mode(veb
);
6106 /* create the remaining VSIs attached to this VEB */
6107 for (v
= 0; v
< pf
->num_alloc_vsi
; v
++) {
6108 if (!pf
->vsi
[v
] || pf
->vsi
[v
] == ctl_vsi
)
6111 if (pf
->vsi
[v
]->veb_idx
== veb
->idx
) {
6112 struct i40e_vsi
*vsi
= pf
->vsi
[v
];
6113 vsi
->uplink_seid
= veb
->seid
;
6114 ret
= i40e_add_vsi(vsi
);
6116 dev_info(&pf
->pdev
->dev
,
6117 "rebuild of vsi_idx %d failed: %d\n",
6119 goto end_reconstitute
;
6121 i40e_vsi_reset_stats(vsi
);
6125 /* create any VEBs attached to this VEB - RECURSION */
6126 for (veb_idx
= 0; veb_idx
< I40E_MAX_VEB
; veb_idx
++) {
6127 if (pf
->veb
[veb_idx
] && pf
->veb
[veb_idx
]->veb_idx
== veb
->idx
) {
6128 pf
->veb
[veb_idx
]->uplink_seid
= veb
->seid
;
6129 ret
= i40e_reconstitute_veb(pf
->veb
[veb_idx
]);
6140 * i40e_get_capabilities - get info about the HW
6141 * @pf: the PF struct
6143 static int i40e_get_capabilities(struct i40e_pf
*pf
)
6145 struct i40e_aqc_list_capabilities_element_resp
*cap_buf
;
6150 buf_len
= 40 * sizeof(struct i40e_aqc_list_capabilities_element_resp
);
6152 cap_buf
= kzalloc(buf_len
, GFP_KERNEL
);
6156 /* this loads the data into the hw struct for us */
6157 err
= i40e_aq_discover_capabilities(&pf
->hw
, cap_buf
, buf_len
,
6159 i40e_aqc_opc_list_func_capabilities
,
6161 /* data loaded, buffer no longer needed */
6164 if (pf
->hw
.aq
.asq_last_status
== I40E_AQ_RC_ENOMEM
) {
6165 /* retry with a larger buffer */
6166 buf_len
= data_size
;
6167 } else if (pf
->hw
.aq
.asq_last_status
!= I40E_AQ_RC_OK
) {
6168 dev_info(&pf
->pdev
->dev
,
6169 "capability discovery failed: aq=%d\n",
6170 pf
->hw
.aq
.asq_last_status
);
6175 if (((pf
->hw
.aq
.fw_maj_ver
== 2) && (pf
->hw
.aq
.fw_min_ver
< 22)) ||
6176 (pf
->hw
.aq
.fw_maj_ver
< 2)) {
6177 pf
->hw
.func_caps
.num_msix_vectors
++;
6178 pf
->hw
.func_caps
.num_msix_vectors_vf
++;
6181 if (pf
->hw
.debug_mask
& I40E_DEBUG_USER
)
6182 dev_info(&pf
->pdev
->dev
,
6183 "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",
6184 pf
->hw
.pf_id
, pf
->hw
.func_caps
.num_vfs
,
6185 pf
->hw
.func_caps
.num_msix_vectors
,
6186 pf
->hw
.func_caps
.num_msix_vectors_vf
,
6187 pf
->hw
.func_caps
.fd_filters_guaranteed
,
6188 pf
->hw
.func_caps
.fd_filters_best_effort
,
6189 pf
->hw
.func_caps
.num_tx_qp
,
6190 pf
->hw
.func_caps
.num_vsis
);
6192 #define DEF_NUM_VSI (1 + (pf->hw.func_caps.fcoe ? 1 : 0) \
6193 + pf->hw.func_caps.num_vfs)
6194 if (pf
->hw
.revision_id
== 0 && (DEF_NUM_VSI
> pf
->hw
.func_caps
.num_vsis
)) {
6195 dev_info(&pf
->pdev
->dev
,
6196 "got num_vsis %d, setting num_vsis to %d\n",
6197 pf
->hw
.func_caps
.num_vsis
, DEF_NUM_VSI
);
6198 pf
->hw
.func_caps
.num_vsis
= DEF_NUM_VSI
;
6204 static int i40e_vsi_clear(struct i40e_vsi
*vsi
);
6207 * i40e_fdir_sb_setup - initialize the Flow Director resources for Sideband
6208 * @pf: board private structure
6210 static void i40e_fdir_sb_setup(struct i40e_pf
*pf
)
6212 struct i40e_vsi
*vsi
;
6215 /* quick workaround for an NVM issue that leaves a critical register
6218 if (!rd32(&pf
->hw
, I40E_GLQF_HKEY(0))) {
6219 static const u32 hkey
[] = {
6220 0xe640d33f, 0xcdfe98ab, 0x73fa7161, 0x0d7a7d36,
6221 0xeacb7d61, 0xaa4f05b6, 0x9c5c89ed, 0xfc425ddb,
6222 0xa4654832, 0xfc7461d4, 0x8f827619, 0xf5c63c21,
6225 for (i
= 0; i
<= I40E_GLQF_HKEY_MAX_INDEX
; i
++)
6226 wr32(&pf
->hw
, I40E_GLQF_HKEY(i
), hkey
[i
]);
6229 if (!(pf
->flags
& I40E_FLAG_FD_SB_ENABLED
))
6232 /* find existing VSI and see if it needs configuring */
6234 for (i
= 0; i
< pf
->num_alloc_vsi
; i
++) {
6235 if (pf
->vsi
[i
] && pf
->vsi
[i
]->type
== I40E_VSI_FDIR
) {
6241 /* create a new VSI if none exists */
6243 vsi
= i40e_vsi_setup(pf
, I40E_VSI_FDIR
,
6244 pf
->vsi
[pf
->lan_vsi
]->seid
, 0);
6246 dev_info(&pf
->pdev
->dev
, "Couldn't create FDir VSI\n");
6247 pf
->flags
&= ~I40E_FLAG_FD_SB_ENABLED
;
6252 i40e_vsi_setup_irqhandler(vsi
, i40e_fdir_clean_ring
);
6256 * i40e_fdir_teardown - release the Flow Director resources
6257 * @pf: board private structure
6259 static void i40e_fdir_teardown(struct i40e_pf
*pf
)
6263 i40e_fdir_filter_exit(pf
);
6264 for (i
= 0; i
< pf
->num_alloc_vsi
; i
++) {
6265 if (pf
->vsi
[i
] && pf
->vsi
[i
]->type
== I40E_VSI_FDIR
) {
6266 i40e_vsi_release(pf
->vsi
[i
]);
6273 * i40e_prep_for_reset - prep for the core to reset
6274 * @pf: board private structure
6276 * Close up the VFs and other things in prep for PF Reset.
6278 static void i40e_prep_for_reset(struct i40e_pf
*pf
)
6280 struct i40e_hw
*hw
= &pf
->hw
;
6281 i40e_status ret
= 0;
6284 clear_bit(__I40E_RESET_INTR_RECEIVED
, &pf
->state
);
6285 if (test_and_set_bit(__I40E_RESET_RECOVERY_PENDING
, &pf
->state
))
6288 dev_dbg(&pf
->pdev
->dev
, "Tearing down internal switch for reset\n");
6290 /* quiesce the VSIs and their queues that are not already DOWN */
6291 i40e_pf_quiesce_all_vsi(pf
);
6293 for (v
= 0; v
< pf
->num_alloc_vsi
; v
++) {
6295 pf
->vsi
[v
]->seid
= 0;
6298 i40e_shutdown_adminq(&pf
->hw
);
6300 /* call shutdown HMC */
6301 if (hw
->hmc
.hmc_obj
) {
6302 ret
= i40e_shutdown_lan_hmc(hw
);
6304 dev_warn(&pf
->pdev
->dev
,
6305 "shutdown_lan_hmc failed: %d\n", ret
);
6310 * i40e_send_version - update firmware with driver version
6313 static void i40e_send_version(struct i40e_pf
*pf
)
6315 struct i40e_driver_version dv
;
6317 dv
.major_version
= DRV_VERSION_MAJOR
;
6318 dv
.minor_version
= DRV_VERSION_MINOR
;
6319 dv
.build_version
= DRV_VERSION_BUILD
;
6320 dv
.subbuild_version
= 0;
6321 strlcpy(dv
.driver_string
, DRV_VERSION
, sizeof(dv
.driver_string
));
6322 i40e_aq_send_driver_version(&pf
->hw
, &dv
, NULL
);
6326 * i40e_reset_and_rebuild - reset and rebuild using a saved config
6327 * @pf: board private structure
6328 * @reinit: if the Main VSI needs to re-initialized.
6330 static void i40e_reset_and_rebuild(struct i40e_pf
*pf
, bool reinit
)
6332 struct i40e_hw
*hw
= &pf
->hw
;
6333 u8 set_fc_aq_fail
= 0;
6337 /* Now we wait for GRST to settle out.
6338 * We don't have to delete the VEBs or VSIs from the hw switch
6339 * because the reset will make them disappear.
6341 ret
= i40e_pf_reset(hw
);
6343 dev_info(&pf
->pdev
->dev
, "PF reset failed, %d\n", ret
);
6344 set_bit(__I40E_RESET_FAILED
, &pf
->state
);
6345 goto clear_recovery
;
6349 if (test_bit(__I40E_DOWN
, &pf
->state
))
6350 goto clear_recovery
;
6351 dev_dbg(&pf
->pdev
->dev
, "Rebuilding internal switch\n");
6353 /* rebuild the basics for the AdminQ, HMC, and initial HW switch */
6354 ret
= i40e_init_adminq(&pf
->hw
);
6356 dev_info(&pf
->pdev
->dev
, "Rebuild AdminQ failed, %d\n", ret
);
6357 goto clear_recovery
;
6360 /* re-verify the eeprom if we just had an EMP reset */
6361 if (test_and_clear_bit(__I40E_EMP_RESET_INTR_RECEIVED
, &pf
->state
))
6362 i40e_verify_eeprom(pf
);
6364 i40e_clear_pxe_mode(hw
);
6365 ret
= i40e_get_capabilities(pf
);
6367 dev_info(&pf
->pdev
->dev
, "i40e_get_capabilities failed, %d\n",
6369 goto end_core_reset
;
6372 ret
= i40e_init_lan_hmc(hw
, hw
->func_caps
.num_tx_qp
,
6373 hw
->func_caps
.num_rx_qp
,
6374 pf
->fcoe_hmc_cntx_num
, pf
->fcoe_hmc_filt_num
);
6376 dev_info(&pf
->pdev
->dev
, "init_lan_hmc failed: %d\n", ret
);
6377 goto end_core_reset
;
6379 ret
= i40e_configure_lan_hmc(hw
, I40E_HMC_MODEL_DIRECT_ONLY
);
6381 dev_info(&pf
->pdev
->dev
, "configure_lan_hmc failed: %d\n", ret
);
6382 goto end_core_reset
;
6385 #ifdef CONFIG_I40E_DCB
6386 ret
= i40e_init_pf_dcb(pf
);
6388 dev_info(&pf
->pdev
->dev
, "DCB init failed %d, disabled\n", ret
);
6389 pf
->flags
&= ~I40E_FLAG_DCB_CAPABLE
;
6390 /* Continue without DCB enabled */
6392 #endif /* CONFIG_I40E_DCB */
6394 ret
= i40e_init_pf_fcoe(pf
);
6396 dev_info(&pf
->pdev
->dev
, "init_pf_fcoe failed: %d\n", ret
);
6399 /* do basic switch setup */
6400 ret
= i40e_setup_pf_switch(pf
, reinit
);
6402 goto end_core_reset
;
6404 /* driver is only interested in link up/down and module qualification
6405 * reports from firmware
6407 ret
= i40e_aq_set_phy_int_mask(&pf
->hw
,
6408 I40E_AQ_EVENT_LINK_UPDOWN
|
6409 I40E_AQ_EVENT_MODULE_QUAL_FAIL
, NULL
);
6411 dev_info(&pf
->pdev
->dev
, "set phy mask fail, aq_err %d\n", ret
);
6413 /* make sure our flow control settings are restored */
6414 ret
= i40e_set_fc(&pf
->hw
, &set_fc_aq_fail
, true);
6416 dev_info(&pf
->pdev
->dev
, "set fc fail, aq_err %d\n", ret
);
6418 /* Rebuild the VSIs and VEBs that existed before reset.
6419 * They are still in our local switch element arrays, so only
6420 * need to rebuild the switch model in the HW.
6422 * If there were VEBs but the reconstitution failed, we'll try
6423 * try to recover minimal use by getting the basic PF VSI working.
6425 if (pf
->vsi
[pf
->lan_vsi
]->uplink_seid
!= pf
->mac_seid
) {
6426 dev_dbg(&pf
->pdev
->dev
, "attempting to rebuild switch\n");
6427 /* find the one VEB connected to the MAC, and find orphans */
6428 for (v
= 0; v
< I40E_MAX_VEB
; v
++) {
6432 if (pf
->veb
[v
]->uplink_seid
== pf
->mac_seid
||
6433 pf
->veb
[v
]->uplink_seid
== 0) {
6434 ret
= i40e_reconstitute_veb(pf
->veb
[v
]);
6439 /* If Main VEB failed, we're in deep doodoo,
6440 * so give up rebuilding the switch and set up
6441 * for minimal rebuild of PF VSI.
6442 * If orphan failed, we'll report the error
6443 * but try to keep going.
6445 if (pf
->veb
[v
]->uplink_seid
== pf
->mac_seid
) {
6446 dev_info(&pf
->pdev
->dev
,
6447 "rebuild of switch failed: %d, will try to set up simple PF connection\n",
6449 pf
->vsi
[pf
->lan_vsi
]->uplink_seid
6452 } else if (pf
->veb
[v
]->uplink_seid
== 0) {
6453 dev_info(&pf
->pdev
->dev
,
6454 "rebuild of orphan VEB failed: %d\n",
6461 if (pf
->vsi
[pf
->lan_vsi
]->uplink_seid
== pf
->mac_seid
) {
6462 dev_dbg(&pf
->pdev
->dev
, "attempting to rebuild PF VSI\n");
6463 /* no VEB, so rebuild only the Main VSI */
6464 ret
= i40e_add_vsi(pf
->vsi
[pf
->lan_vsi
]);
6466 dev_info(&pf
->pdev
->dev
,
6467 "rebuild of Main VSI failed: %d\n", ret
);
6468 goto end_core_reset
;
6472 if (((pf
->hw
.aq
.fw_maj_ver
== 4) && (pf
->hw
.aq
.fw_min_ver
< 33)) ||
6473 (pf
->hw
.aq
.fw_maj_ver
< 4)) {
6475 ret
= i40e_aq_set_link_restart_an(&pf
->hw
, true, NULL
);
6477 dev_info(&pf
->pdev
->dev
, "link restart failed, aq_err=%d\n",
6478 pf
->hw
.aq
.asq_last_status
);
6480 /* reinit the misc interrupt */
6481 if (pf
->flags
& I40E_FLAG_MSIX_ENABLED
)
6482 ret
= i40e_setup_misc_vector(pf
);
6484 /* restart the VSIs that were rebuilt and running before the reset */
6485 i40e_pf_unquiesce_all_vsi(pf
);
6487 if (pf
->num_alloc_vfs
) {
6488 for (v
= 0; v
< pf
->num_alloc_vfs
; v
++)
6489 i40e_reset_vf(&pf
->vf
[v
], true);
6492 /* tell the firmware that we're starting */
6493 i40e_send_version(pf
);
6496 clear_bit(__I40E_RESET_FAILED
, &pf
->state
);
6498 clear_bit(__I40E_RESET_RECOVERY_PENDING
, &pf
->state
);
6502 * i40e_handle_reset_warning - prep for the PF to reset, reset and rebuild
6503 * @pf: board private structure
6505 * Close up the VFs and other things in prep for a Core Reset,
6506 * then get ready to rebuild the world.
6508 static void i40e_handle_reset_warning(struct i40e_pf
*pf
)
6510 i40e_prep_for_reset(pf
);
6511 i40e_reset_and_rebuild(pf
, false);
6515 * i40e_handle_mdd_event
6516 * @pf: pointer to the PF structure
6518 * Called from the MDD irq handler to identify possibly malicious vfs
6520 static void i40e_handle_mdd_event(struct i40e_pf
*pf
)
6522 struct i40e_hw
*hw
= &pf
->hw
;
6523 bool mdd_detected
= false;
6524 bool pf_mdd_detected
= false;
6529 if (!test_bit(__I40E_MDD_EVENT_PENDING
, &pf
->state
))
6532 /* find what triggered the MDD event */
6533 reg
= rd32(hw
, I40E_GL_MDET_TX
);
6534 if (reg
& I40E_GL_MDET_TX_VALID_MASK
) {
6535 u8 pf_num
= (reg
& I40E_GL_MDET_TX_PF_NUM_MASK
) >>
6536 I40E_GL_MDET_TX_PF_NUM_SHIFT
;
6537 u16 vf_num
= (reg
& I40E_GL_MDET_TX_VF_NUM_MASK
) >>
6538 I40E_GL_MDET_TX_VF_NUM_SHIFT
;
6539 u8 event
= (reg
& I40E_GL_MDET_TX_EVENT_MASK
) >>
6540 I40E_GL_MDET_TX_EVENT_SHIFT
;
6541 u16 queue
= ((reg
& I40E_GL_MDET_TX_QUEUE_MASK
) >>
6542 I40E_GL_MDET_TX_QUEUE_SHIFT
) -
6543 pf
->hw
.func_caps
.base_queue
;
6544 if (netif_msg_tx_err(pf
))
6545 dev_info(&pf
->pdev
->dev
, "Malicious Driver Detection event 0x%02x on TX queue %d PF number 0x%02x VF number 0x%02x\n",
6546 event
, queue
, pf_num
, vf_num
);
6547 wr32(hw
, I40E_GL_MDET_TX
, 0xffffffff);
6548 mdd_detected
= true;
6550 reg
= rd32(hw
, I40E_GL_MDET_RX
);
6551 if (reg
& I40E_GL_MDET_RX_VALID_MASK
) {
6552 u8 func
= (reg
& I40E_GL_MDET_RX_FUNCTION_MASK
) >>
6553 I40E_GL_MDET_RX_FUNCTION_SHIFT
;
6554 u8 event
= (reg
& I40E_GL_MDET_RX_EVENT_MASK
) >>
6555 I40E_GL_MDET_RX_EVENT_SHIFT
;
6556 u16 queue
= ((reg
& I40E_GL_MDET_RX_QUEUE_MASK
) >>
6557 I40E_GL_MDET_RX_QUEUE_SHIFT
) -
6558 pf
->hw
.func_caps
.base_queue
;
6559 if (netif_msg_rx_err(pf
))
6560 dev_info(&pf
->pdev
->dev
, "Malicious Driver Detection event 0x%02x on RX queue %d of function 0x%02x\n",
6561 event
, queue
, func
);
6562 wr32(hw
, I40E_GL_MDET_RX
, 0xffffffff);
6563 mdd_detected
= true;
6567 reg
= rd32(hw
, I40E_PF_MDET_TX
);
6568 if (reg
& I40E_PF_MDET_TX_VALID_MASK
) {
6569 wr32(hw
, I40E_PF_MDET_TX
, 0xFFFF);
6570 dev_info(&pf
->pdev
->dev
, "TX driver issue detected, PF reset issued\n");
6571 pf_mdd_detected
= true;
6573 reg
= rd32(hw
, I40E_PF_MDET_RX
);
6574 if (reg
& I40E_PF_MDET_RX_VALID_MASK
) {
6575 wr32(hw
, I40E_PF_MDET_RX
, 0xFFFF);
6576 dev_info(&pf
->pdev
->dev
, "RX driver issue detected, PF reset issued\n");
6577 pf_mdd_detected
= true;
6579 /* Queue belongs to the PF, initiate a reset */
6580 if (pf_mdd_detected
) {
6581 set_bit(__I40E_PF_RESET_REQUESTED
, &pf
->state
);
6582 i40e_service_event_schedule(pf
);
6586 /* see if one of the VFs needs its hand slapped */
6587 for (i
= 0; i
< pf
->num_alloc_vfs
&& mdd_detected
; i
++) {
6589 reg
= rd32(hw
, I40E_VP_MDET_TX(i
));
6590 if (reg
& I40E_VP_MDET_TX_VALID_MASK
) {
6591 wr32(hw
, I40E_VP_MDET_TX(i
), 0xFFFF);
6592 vf
->num_mdd_events
++;
6593 dev_info(&pf
->pdev
->dev
, "TX driver issue detected on VF %d\n",
6597 reg
= rd32(hw
, I40E_VP_MDET_RX(i
));
6598 if (reg
& I40E_VP_MDET_RX_VALID_MASK
) {
6599 wr32(hw
, I40E_VP_MDET_RX(i
), 0xFFFF);
6600 vf
->num_mdd_events
++;
6601 dev_info(&pf
->pdev
->dev
, "RX driver issue detected on VF %d\n",
6605 if (vf
->num_mdd_events
> I40E_DEFAULT_NUM_MDD_EVENTS_ALLOWED
) {
6606 dev_info(&pf
->pdev
->dev
,
6607 "Too many MDD events on VF %d, disabled\n", i
);
6608 dev_info(&pf
->pdev
->dev
,
6609 "Use PF Control I/F to re-enable the VF\n");
6610 set_bit(I40E_VF_STAT_DISABLED
, &vf
->vf_states
);
6614 /* re-enable mdd interrupt cause */
6615 clear_bit(__I40E_MDD_EVENT_PENDING
, &pf
->state
);
6616 reg
= rd32(hw
, I40E_PFINT_ICR0_ENA
);
6617 reg
|= I40E_PFINT_ICR0_ENA_MAL_DETECT_MASK
;
6618 wr32(hw
, I40E_PFINT_ICR0_ENA
, reg
);
6622 #ifdef CONFIG_I40E_VXLAN
6624 * i40e_sync_vxlan_filters_subtask - Sync the VSI filter list with HW
6625 * @pf: board private structure
6627 static void i40e_sync_vxlan_filters_subtask(struct i40e_pf
*pf
)
6629 struct i40e_hw
*hw
= &pf
->hw
;
6634 if (!(pf
->flags
& I40E_FLAG_VXLAN_FILTER_SYNC
))
6637 pf
->flags
&= ~I40E_FLAG_VXLAN_FILTER_SYNC
;
6639 for (i
= 0; i
< I40E_MAX_PF_UDP_OFFLOAD_PORTS
; i
++) {
6640 if (pf
->pending_vxlan_bitmap
& (1 << i
)) {
6641 pf
->pending_vxlan_bitmap
&= ~(1 << i
);
6642 port
= pf
->vxlan_ports
[i
];
6644 ret
= i40e_aq_add_udp_tunnel(hw
, ntohs(port
),
6645 I40E_AQC_TUNNEL_TYPE_VXLAN
,
6648 ret
= i40e_aq_del_udp_tunnel(hw
, i
, NULL
);
6651 dev_info(&pf
->pdev
->dev
,
6652 "%s vxlan port %d, index %d failed, err %d, aq_err %d\n",
6653 port
? "add" : "delete",
6654 ntohs(port
), i
, ret
,
6655 pf
->hw
.aq
.asq_last_status
);
6656 pf
->vxlan_ports
[i
] = 0;
6664 * i40e_service_task - Run the driver's async subtasks
6665 * @work: pointer to work_struct containing our data
6667 static void i40e_service_task(struct work_struct
*work
)
6669 struct i40e_pf
*pf
= container_of(work
,
6672 unsigned long start_time
= jiffies
;
6674 /* don't bother with service tasks if a reset is in progress */
6675 if (test_bit(__I40E_RESET_RECOVERY_PENDING
, &pf
->state
)) {
6676 i40e_service_event_complete(pf
);
6680 i40e_reset_subtask(pf
);
6681 i40e_handle_mdd_event(pf
);
6682 i40e_vc_process_vflr_event(pf
);
6683 i40e_watchdog_subtask(pf
);
6684 i40e_fdir_reinit_subtask(pf
);
6685 i40e_sync_filters_subtask(pf
);
6686 #ifdef CONFIG_I40E_VXLAN
6687 i40e_sync_vxlan_filters_subtask(pf
);
6689 i40e_clean_adminq_subtask(pf
);
6691 i40e_service_event_complete(pf
);
6693 /* If the tasks have taken longer than one timer cycle or there
6694 * is more work to be done, reschedule the service task now
6695 * rather than wait for the timer to tick again.
6697 if (time_after(jiffies
, (start_time
+ pf
->service_timer_period
)) ||
6698 test_bit(__I40E_ADMINQ_EVENT_PENDING
, &pf
->state
) ||
6699 test_bit(__I40E_MDD_EVENT_PENDING
, &pf
->state
) ||
6700 test_bit(__I40E_VFLR_EVENT_PENDING
, &pf
->state
))
6701 i40e_service_event_schedule(pf
);
6705 * i40e_service_timer - timer callback
6706 * @data: pointer to PF struct
6708 static void i40e_service_timer(unsigned long data
)
6710 struct i40e_pf
*pf
= (struct i40e_pf
*)data
;
6712 mod_timer(&pf
->service_timer
,
6713 round_jiffies(jiffies
+ pf
->service_timer_period
));
6714 i40e_service_event_schedule(pf
);
6718 * i40e_set_num_rings_in_vsi - Determine number of rings in the VSI
6719 * @vsi: the VSI being configured
6721 static int i40e_set_num_rings_in_vsi(struct i40e_vsi
*vsi
)
6723 struct i40e_pf
*pf
= vsi
->back
;
6725 switch (vsi
->type
) {
6727 vsi
->alloc_queue_pairs
= pf
->num_lan_qps
;
6728 vsi
->num_desc
= ALIGN(I40E_DEFAULT_NUM_DESCRIPTORS
,
6729 I40E_REQ_DESCRIPTOR_MULTIPLE
);
6730 if (pf
->flags
& I40E_FLAG_MSIX_ENABLED
)
6731 vsi
->num_q_vectors
= pf
->num_lan_msix
;
6733 vsi
->num_q_vectors
= 1;
6738 vsi
->alloc_queue_pairs
= 1;
6739 vsi
->num_desc
= ALIGN(I40E_FDIR_RING_COUNT
,
6740 I40E_REQ_DESCRIPTOR_MULTIPLE
);
6741 vsi
->num_q_vectors
= 1;
6744 case I40E_VSI_VMDQ2
:
6745 vsi
->alloc_queue_pairs
= pf
->num_vmdq_qps
;
6746 vsi
->num_desc
= ALIGN(I40E_DEFAULT_NUM_DESCRIPTORS
,
6747 I40E_REQ_DESCRIPTOR_MULTIPLE
);
6748 vsi
->num_q_vectors
= pf
->num_vmdq_msix
;
6751 case I40E_VSI_SRIOV
:
6752 vsi
->alloc_queue_pairs
= pf
->num_vf_qps
;
6753 vsi
->num_desc
= ALIGN(I40E_DEFAULT_NUM_DESCRIPTORS
,
6754 I40E_REQ_DESCRIPTOR_MULTIPLE
);
6759 vsi
->alloc_queue_pairs
= pf
->num_fcoe_qps
;
6760 vsi
->num_desc
= ALIGN(I40E_DEFAULT_NUM_DESCRIPTORS
,
6761 I40E_REQ_DESCRIPTOR_MULTIPLE
);
6762 vsi
->num_q_vectors
= pf
->num_fcoe_msix
;
6765 #endif /* I40E_FCOE */
6775 * i40e_vsi_alloc_arrays - Allocate queue and vector pointer arrays for the vsi
6776 * @type: VSI pointer
6777 * @alloc_qvectors: a bool to specify if q_vectors need to be allocated.
6779 * On error: returns error code (negative)
6780 * On success: returns 0
6782 static int i40e_vsi_alloc_arrays(struct i40e_vsi
*vsi
, bool alloc_qvectors
)
6787 /* allocate memory for both Tx and Rx ring pointers */
6788 size
= sizeof(struct i40e_ring
*) * vsi
->alloc_queue_pairs
* 2;
6789 vsi
->tx_rings
= kzalloc(size
, GFP_KERNEL
);
6792 vsi
->rx_rings
= &vsi
->tx_rings
[vsi
->alloc_queue_pairs
];
6794 if (alloc_qvectors
) {
6795 /* allocate memory for q_vector pointers */
6796 size
= sizeof(struct i40e_q_vector
*) * vsi
->num_q_vectors
;
6797 vsi
->q_vectors
= kzalloc(size
, GFP_KERNEL
);
6798 if (!vsi
->q_vectors
) {
6806 kfree(vsi
->tx_rings
);
6811 * i40e_vsi_mem_alloc - Allocates the next available struct vsi in the PF
6812 * @pf: board private structure
6813 * @type: type of VSI
6815 * On error: returns error code (negative)
6816 * On success: returns vsi index in PF (positive)
6818 static int i40e_vsi_mem_alloc(struct i40e_pf
*pf
, enum i40e_vsi_type type
)
6821 struct i40e_vsi
*vsi
;
6825 /* Need to protect the allocation of the VSIs at the PF level */
6826 mutex_lock(&pf
->switch_mutex
);
6828 /* VSI list may be fragmented if VSI creation/destruction has
6829 * been happening. We can afford to do a quick scan to look
6830 * for any free VSIs in the list.
6832 * find next empty vsi slot, looping back around if necessary
6835 while (i
< pf
->num_alloc_vsi
&& pf
->vsi
[i
])
6837 if (i
>= pf
->num_alloc_vsi
) {
6839 while (i
< pf
->next_vsi
&& pf
->vsi
[i
])
6843 if (i
< pf
->num_alloc_vsi
&& !pf
->vsi
[i
]) {
6844 vsi_idx
= i
; /* Found one! */
6847 goto unlock_pf
; /* out of VSI slots! */
6851 vsi
= kzalloc(sizeof(*vsi
), GFP_KERNEL
);
6858 set_bit(__I40E_DOWN
, &vsi
->state
);
6861 vsi
->rx_itr_setting
= pf
->rx_itr_default
;
6862 vsi
->tx_itr_setting
= pf
->tx_itr_default
;
6863 vsi
->rss_table_size
= (vsi
->type
== I40E_VSI_MAIN
) ?
6864 pf
->rss_table_size
: 64;
6865 vsi
->netdev_registered
= false;
6866 vsi
->work_limit
= I40E_DEFAULT_IRQ_WORK
;
6867 INIT_LIST_HEAD(&vsi
->mac_filter_list
);
6868 vsi
->irqs_ready
= false;
6870 ret
= i40e_set_num_rings_in_vsi(vsi
);
6874 ret
= i40e_vsi_alloc_arrays(vsi
, true);
6878 /* Setup default MSIX irq handler for VSI */
6879 i40e_vsi_setup_irqhandler(vsi
, i40e_msix_clean_rings
);
6881 pf
->vsi
[vsi_idx
] = vsi
;
6886 pf
->next_vsi
= i
- 1;
6889 mutex_unlock(&pf
->switch_mutex
);
6894 * i40e_vsi_free_arrays - Free queue and vector pointer arrays for the VSI
6895 * @type: VSI pointer
6896 * @free_qvectors: a bool to specify if q_vectors need to be freed.
6898 * On error: returns error code (negative)
6899 * On success: returns 0
6901 static void i40e_vsi_free_arrays(struct i40e_vsi
*vsi
, bool free_qvectors
)
6903 /* free the ring and vector containers */
6904 if (free_qvectors
) {
6905 kfree(vsi
->q_vectors
);
6906 vsi
->q_vectors
= NULL
;
6908 kfree(vsi
->tx_rings
);
6909 vsi
->tx_rings
= NULL
;
6910 vsi
->rx_rings
= NULL
;
6914 * i40e_vsi_clear - Deallocate the VSI provided
6915 * @vsi: the VSI being un-configured
6917 static int i40e_vsi_clear(struct i40e_vsi
*vsi
)
6928 mutex_lock(&pf
->switch_mutex
);
6929 if (!pf
->vsi
[vsi
->idx
]) {
6930 dev_err(&pf
->pdev
->dev
, "pf->vsi[%d] is NULL, just free vsi[%d](%p,type %d)\n",
6931 vsi
->idx
, vsi
->idx
, vsi
, vsi
->type
);
6935 if (pf
->vsi
[vsi
->idx
] != vsi
) {
6936 dev_err(&pf
->pdev
->dev
,
6937 "pf->vsi[%d](%p, type %d) != vsi[%d](%p,type %d): no free!\n",
6938 pf
->vsi
[vsi
->idx
]->idx
,
6940 pf
->vsi
[vsi
->idx
]->type
,
6941 vsi
->idx
, vsi
, vsi
->type
);
6945 /* updates the PF for this cleared vsi */
6946 i40e_put_lump(pf
->qp_pile
, vsi
->base_queue
, vsi
->idx
);
6947 i40e_put_lump(pf
->irq_pile
, vsi
->base_vector
, vsi
->idx
);
6949 i40e_vsi_free_arrays(vsi
, true);
6951 pf
->vsi
[vsi
->idx
] = NULL
;
6952 if (vsi
->idx
< pf
->next_vsi
)
6953 pf
->next_vsi
= vsi
->idx
;
6956 mutex_unlock(&pf
->switch_mutex
);
6964 * i40e_vsi_clear_rings - Deallocates the Rx and Tx rings for the provided VSI
6965 * @vsi: the VSI being cleaned
6967 static void i40e_vsi_clear_rings(struct i40e_vsi
*vsi
)
6971 if (vsi
->tx_rings
&& vsi
->tx_rings
[0]) {
6972 for (i
= 0; i
< vsi
->alloc_queue_pairs
; i
++) {
6973 kfree_rcu(vsi
->tx_rings
[i
], rcu
);
6974 vsi
->tx_rings
[i
] = NULL
;
6975 vsi
->rx_rings
[i
] = NULL
;
6981 * i40e_alloc_rings - Allocates the Rx and Tx rings for the provided VSI
6982 * @vsi: the VSI being configured
6984 static int i40e_alloc_rings(struct i40e_vsi
*vsi
)
6986 struct i40e_ring
*tx_ring
, *rx_ring
;
6987 struct i40e_pf
*pf
= vsi
->back
;
6990 /* Set basic values in the rings to be used later during open() */
6991 for (i
= 0; i
< vsi
->alloc_queue_pairs
; i
++) {
6992 /* allocate space for both Tx and Rx in one shot */
6993 tx_ring
= kzalloc(sizeof(struct i40e_ring
) * 2, GFP_KERNEL
);
6997 tx_ring
->queue_index
= i
;
6998 tx_ring
->reg_idx
= vsi
->base_queue
+ i
;
6999 tx_ring
->ring_active
= false;
7001 tx_ring
->netdev
= vsi
->netdev
;
7002 tx_ring
->dev
= &pf
->pdev
->dev
;
7003 tx_ring
->count
= vsi
->num_desc
;
7005 tx_ring
->dcb_tc
= 0;
7006 vsi
->tx_rings
[i
] = tx_ring
;
7008 rx_ring
= &tx_ring
[1];
7009 rx_ring
->queue_index
= i
;
7010 rx_ring
->reg_idx
= vsi
->base_queue
+ i
;
7011 rx_ring
->ring_active
= false;
7013 rx_ring
->netdev
= vsi
->netdev
;
7014 rx_ring
->dev
= &pf
->pdev
->dev
;
7015 rx_ring
->count
= vsi
->num_desc
;
7017 rx_ring
->dcb_tc
= 0;
7018 if (pf
->flags
& I40E_FLAG_16BYTE_RX_DESC_ENABLED
)
7019 set_ring_16byte_desc_enabled(rx_ring
);
7021 clear_ring_16byte_desc_enabled(rx_ring
);
7022 vsi
->rx_rings
[i
] = rx_ring
;
7028 i40e_vsi_clear_rings(vsi
);
7033 * i40e_reserve_msix_vectors - Reserve MSI-X vectors in the kernel
7034 * @pf: board private structure
7035 * @vectors: the number of MSI-X vectors to request
7037 * Returns the number of vectors reserved, or error
7039 static int i40e_reserve_msix_vectors(struct i40e_pf
*pf
, int vectors
)
7041 vectors
= pci_enable_msix_range(pf
->pdev
, pf
->msix_entries
,
7042 I40E_MIN_MSIX
, vectors
);
7044 dev_info(&pf
->pdev
->dev
,
7045 "MSI-X vector reservation failed: %d\n", vectors
);
7053 * i40e_init_msix - Setup the MSIX capability
7054 * @pf: board private structure
7056 * Work with the OS to set up the MSIX vectors needed.
7058 * Returns the number of vectors reserved or negative on failure
7060 static int i40e_init_msix(struct i40e_pf
*pf
)
7062 struct i40e_hw
*hw
= &pf
->hw
;
7067 if (!(pf
->flags
& I40E_FLAG_MSIX_ENABLED
))
7070 /* The number of vectors we'll request will be comprised of:
7071 * - Add 1 for "other" cause for Admin Queue events, etc.
7072 * - The number of LAN queue pairs
7073 * - Queues being used for RSS.
7074 * We don't need as many as max_rss_size vectors.
7075 * use rss_size instead in the calculation since that
7076 * is governed by number of cpus in the system.
7077 * - assumes symmetric Tx/Rx pairing
7078 * - The number of VMDq pairs
7080 * - The number of FCOE qps.
7082 * Once we count this up, try the request.
7084 * If we can't get what we want, we'll simplify to nearly nothing
7085 * and try again. If that still fails, we punt.
7087 vectors_left
= hw
->func_caps
.num_msix_vectors
;
7090 /* reserve one vector for miscellaneous handler */
7096 /* reserve vectors for the main PF traffic queues */
7097 pf
->num_lan_msix
= min_t(int, num_online_cpus(), vectors_left
);
7098 vectors_left
-= pf
->num_lan_msix
;
7099 v_budget
+= pf
->num_lan_msix
;
7101 /* reserve one vector for sideband flow director */
7102 if (pf
->flags
& I40E_FLAG_FD_SB_ENABLED
) {
7107 pf
->flags
&= ~I40E_FLAG_FD_SB_ENABLED
;
7112 /* can we reserve enough for FCoE? */
7113 if (pf
->flags
& I40E_FLAG_FCOE_ENABLED
) {
7115 pf
->num_fcoe_msix
= 0;
7116 else if (vectors_left
>= pf
->num_fcoe_qps
)
7117 pf
->num_fcoe_msix
= pf
->num_fcoe_qps
;
7119 pf
->num_fcoe_msix
= 1;
7120 v_budget
+= pf
->num_fcoe_msix
;
7121 vectors_left
-= pf
->num_fcoe_msix
;
7125 /* any vectors left over go for VMDq support */
7126 if (pf
->flags
& I40E_FLAG_VMDQ_ENABLED
) {
7127 int vmdq_vecs_wanted
= pf
->num_vmdq_vsis
* pf
->num_vmdq_qps
;
7128 int vmdq_vecs
= min_t(int, vectors_left
, vmdq_vecs_wanted
);
7130 /* if we're short on vectors for what's desired, we limit
7131 * the queues per vmdq. If this is still more than are
7132 * available, the user will need to change the number of
7133 * queues/vectors used by the PF later with the ethtool
7136 if (vmdq_vecs
< vmdq_vecs_wanted
)
7137 pf
->num_vmdq_qps
= 1;
7138 pf
->num_vmdq_msix
= pf
->num_vmdq_qps
;
7140 v_budget
+= vmdq_vecs
;
7141 vectors_left
-= vmdq_vecs
;
7144 pf
->msix_entries
= kcalloc(v_budget
, sizeof(struct msix_entry
),
7146 if (!pf
->msix_entries
)
7149 for (i
= 0; i
< v_budget
; i
++)
7150 pf
->msix_entries
[i
].entry
= i
;
7151 v_actual
= i40e_reserve_msix_vectors(pf
, v_budget
);
7153 if (v_actual
!= v_budget
) {
7154 /* If we have limited resources, we will start with no vectors
7155 * for the special features and then allocate vectors to some
7156 * of these features based on the policy and at the end disable
7157 * the features that did not get any vectors.
7160 pf
->num_fcoe_qps
= 0;
7161 pf
->num_fcoe_msix
= 0;
7163 pf
->num_vmdq_msix
= 0;
7166 if (v_actual
< I40E_MIN_MSIX
) {
7167 pf
->flags
&= ~I40E_FLAG_MSIX_ENABLED
;
7168 kfree(pf
->msix_entries
);
7169 pf
->msix_entries
= NULL
;
7172 } else if (v_actual
== I40E_MIN_MSIX
) {
7173 /* Adjust for minimal MSIX use */
7174 pf
->num_vmdq_vsis
= 0;
7175 pf
->num_vmdq_qps
= 0;
7176 pf
->num_lan_qps
= 1;
7177 pf
->num_lan_msix
= 1;
7179 } else if (v_actual
!= v_budget
) {
7182 /* reserve the misc vector */
7185 /* Scale vector usage down */
7186 pf
->num_vmdq_msix
= 1; /* force VMDqs to only one vector */
7187 pf
->num_vmdq_vsis
= 1;
7188 pf
->num_vmdq_qps
= 1;
7189 pf
->flags
&= ~I40E_FLAG_FD_SB_ENABLED
;
7191 /* partition out the remaining vectors */
7194 pf
->num_lan_msix
= 1;
7198 /* give one vector to FCoE */
7199 if (pf
->flags
& I40E_FLAG_FCOE_ENABLED
) {
7200 pf
->num_lan_msix
= 1;
7201 pf
->num_fcoe_msix
= 1;
7204 pf
->num_lan_msix
= 2;
7209 /* give one vector to FCoE */
7210 if (pf
->flags
& I40E_FLAG_FCOE_ENABLED
) {
7211 pf
->num_fcoe_msix
= 1;
7215 /* give the rest to the PF */
7216 pf
->num_lan_msix
= min_t(int, vec
, pf
->num_lan_qps
);
7221 if ((pf
->flags
& I40E_FLAG_VMDQ_ENABLED
) &&
7222 (pf
->num_vmdq_msix
== 0)) {
7223 dev_info(&pf
->pdev
->dev
, "VMDq disabled, not enough MSI-X vectors\n");
7224 pf
->flags
&= ~I40E_FLAG_VMDQ_ENABLED
;
7228 if ((pf
->flags
& I40E_FLAG_FCOE_ENABLED
) && (pf
->num_fcoe_msix
== 0)) {
7229 dev_info(&pf
->pdev
->dev
, "FCOE disabled, not enough MSI-X vectors\n");
7230 pf
->flags
&= ~I40E_FLAG_FCOE_ENABLED
;
7237 * i40e_vsi_alloc_q_vector - Allocate memory for a single interrupt vector
7238 * @vsi: the VSI being configured
7239 * @v_idx: index of the vector in the vsi struct
7241 * We allocate one q_vector. If allocation fails we return -ENOMEM.
7243 static int i40e_vsi_alloc_q_vector(struct i40e_vsi
*vsi
, int v_idx
)
7245 struct i40e_q_vector
*q_vector
;
7247 /* allocate q_vector */
7248 q_vector
= kzalloc(sizeof(struct i40e_q_vector
), GFP_KERNEL
);
7252 q_vector
->vsi
= vsi
;
7253 q_vector
->v_idx
= v_idx
;
7254 cpumask_set_cpu(v_idx
, &q_vector
->affinity_mask
);
7256 netif_napi_add(vsi
->netdev
, &q_vector
->napi
,
7257 i40e_napi_poll
, NAPI_POLL_WEIGHT
);
7259 q_vector
->rx
.latency_range
= I40E_LOW_LATENCY
;
7260 q_vector
->tx
.latency_range
= I40E_LOW_LATENCY
;
7262 /* tie q_vector and vsi together */
7263 vsi
->q_vectors
[v_idx
] = q_vector
;
7269 * i40e_vsi_alloc_q_vectors - Allocate memory for interrupt vectors
7270 * @vsi: the VSI being configured
7272 * We allocate one q_vector per queue interrupt. If allocation fails we
7275 static int i40e_vsi_alloc_q_vectors(struct i40e_vsi
*vsi
)
7277 struct i40e_pf
*pf
= vsi
->back
;
7278 int v_idx
, num_q_vectors
;
7281 /* if not MSIX, give the one vector only to the LAN VSI */
7282 if (pf
->flags
& I40E_FLAG_MSIX_ENABLED
)
7283 num_q_vectors
= vsi
->num_q_vectors
;
7284 else if (vsi
== pf
->vsi
[pf
->lan_vsi
])
7289 for (v_idx
= 0; v_idx
< num_q_vectors
; v_idx
++) {
7290 err
= i40e_vsi_alloc_q_vector(vsi
, v_idx
);
7299 i40e_free_q_vector(vsi
, v_idx
);
7305 * i40e_init_interrupt_scheme - Determine proper interrupt scheme
7306 * @pf: board private structure to initialize
7308 static int i40e_init_interrupt_scheme(struct i40e_pf
*pf
)
7313 if (pf
->flags
& I40E_FLAG_MSIX_ENABLED
) {
7314 vectors
= i40e_init_msix(pf
);
7316 pf
->flags
&= ~(I40E_FLAG_MSIX_ENABLED
|
7318 I40E_FLAG_FCOE_ENABLED
|
7320 I40E_FLAG_RSS_ENABLED
|
7321 I40E_FLAG_DCB_CAPABLE
|
7322 I40E_FLAG_SRIOV_ENABLED
|
7323 I40E_FLAG_FD_SB_ENABLED
|
7324 I40E_FLAG_FD_ATR_ENABLED
|
7325 I40E_FLAG_VMDQ_ENABLED
);
7327 /* rework the queue expectations without MSIX */
7328 i40e_determine_queue_usage(pf
);
7332 if (!(pf
->flags
& I40E_FLAG_MSIX_ENABLED
) &&
7333 (pf
->flags
& I40E_FLAG_MSI_ENABLED
)) {
7334 dev_info(&pf
->pdev
->dev
, "MSI-X not available, trying MSI\n");
7335 vectors
= pci_enable_msi(pf
->pdev
);
7337 dev_info(&pf
->pdev
->dev
, "MSI init failed - %d\n",
7339 pf
->flags
&= ~I40E_FLAG_MSI_ENABLED
;
7341 vectors
= 1; /* one MSI or Legacy vector */
7344 if (!(pf
->flags
& (I40E_FLAG_MSIX_ENABLED
| I40E_FLAG_MSI_ENABLED
)))
7345 dev_info(&pf
->pdev
->dev
, "MSI-X and MSI not available, falling back to Legacy IRQ\n");
7347 /* set up vector assignment tracking */
7348 size
= sizeof(struct i40e_lump_tracking
) + (sizeof(u16
) * vectors
);
7349 pf
->irq_pile
= kzalloc(size
, GFP_KERNEL
);
7350 if (!pf
->irq_pile
) {
7351 dev_err(&pf
->pdev
->dev
, "error allocating irq_pile memory\n");
7354 pf
->irq_pile
->num_entries
= vectors
;
7355 pf
->irq_pile
->search_hint
= 0;
7357 /* track first vector for misc interrupts, ignore return */
7358 (void)i40e_get_lump(pf
, pf
->irq_pile
, 1, I40E_PILE_VALID_BIT
- 1);
7364 * i40e_setup_misc_vector - Setup the misc vector to handle non queue events
7365 * @pf: board private structure
7367 * This sets up the handler for MSIX 0, which is used to manage the
7368 * non-queue interrupts, e.g. AdminQ and errors. This is not used
7369 * when in MSI or Legacy interrupt mode.
7371 static int i40e_setup_misc_vector(struct i40e_pf
*pf
)
7373 struct i40e_hw
*hw
= &pf
->hw
;
7376 /* Only request the irq if this is the first time through, and
7377 * not when we're rebuilding after a Reset
7379 if (!test_bit(__I40E_RESET_RECOVERY_PENDING
, &pf
->state
)) {
7380 err
= request_irq(pf
->msix_entries
[0].vector
,
7381 i40e_intr
, 0, pf
->int_name
, pf
);
7383 dev_info(&pf
->pdev
->dev
,
7384 "request_irq for %s failed: %d\n",
7390 i40e_enable_misc_int_causes(pf
);
7392 /* associate no queues to the misc vector */
7393 wr32(hw
, I40E_PFINT_LNKLST0
, I40E_QUEUE_END_OF_LIST
);
7394 wr32(hw
, I40E_PFINT_ITR0(I40E_RX_ITR
), I40E_ITR_8K
);
7398 i40e_irq_dynamic_enable_icr0(pf
);
7404 * i40e_config_rss - Prepare for RSS if used
7405 * @pf: board private structure
7407 static int i40e_config_rss(struct i40e_pf
*pf
)
7409 u32 rss_key
[I40E_PFQF_HKEY_MAX_INDEX
+ 1];
7410 struct i40e_vsi
*vsi
= pf
->vsi
[pf
->lan_vsi
];
7411 struct i40e_hw
*hw
= &pf
->hw
;
7417 netdev_rss_key_fill(rss_key
, sizeof(rss_key
));
7418 for (i
= 0; i
<= I40E_PFQF_HKEY_MAX_INDEX
; i
++)
7419 wr32(hw
, I40E_PFQF_HKEY(i
), rss_key
[i
]);
7421 /* By default we enable TCP/UDP with IPv4/IPv6 ptypes */
7422 hena
= (u64
)rd32(hw
, I40E_PFQF_HENA(0)) |
7423 ((u64
)rd32(hw
, I40E_PFQF_HENA(1)) << 32);
7424 hena
|= I40E_DEFAULT_RSS_HENA
;
7425 wr32(hw
, I40E_PFQF_HENA(0), (u32
)hena
);
7426 wr32(hw
, I40E_PFQF_HENA(1), (u32
)(hena
>> 32));
7428 vsi
->rss_size
= min_t(int, pf
->rss_size
, vsi
->num_queue_pairs
);
7430 /* Check capability and Set table size and register per hw expectation*/
7431 reg_val
= rd32(hw
, I40E_PFQF_CTL_0
);
7432 if (pf
->rss_table_size
== 512)
7433 reg_val
|= I40E_PFQF_CTL_0_HASHLUTSIZE_512
;
7435 reg_val
&= ~I40E_PFQF_CTL_0_HASHLUTSIZE_512
;
7436 wr32(hw
, I40E_PFQF_CTL_0
, reg_val
);
7438 /* Populate the LUT with max no. of queues in round robin fashion */
7439 for (i
= 0, j
= 0; i
< pf
->rss_table_size
; i
++, j
++) {
7441 /* The assumption is that lan qp count will be the highest
7442 * qp count for any PF VSI that needs RSS.
7443 * If multiple VSIs need RSS support, all the qp counts
7444 * for those VSIs should be a power of 2 for RSS to work.
7445 * If LAN VSI is the only consumer for RSS then this requirement
7448 if (j
== vsi
->rss_size
)
7450 /* lut = 4-byte sliding window of 4 lut entries */
7451 lut
= (lut
<< 8) | (j
&
7452 ((0x1 << pf
->hw
.func_caps
.rss_table_entry_width
) - 1));
7453 /* On i = 3, we have 4 entries in lut; write to the register */
7455 wr32(hw
, I40E_PFQF_HLUT(i
>> 2), lut
);
7463 * i40e_reconfig_rss_queues - change number of queues for rss and rebuild
7464 * @pf: board private structure
7465 * @queue_count: the requested queue count for rss.
7467 * returns 0 if rss is not enabled, if enabled returns the final rss queue
7468 * count which may be different from the requested queue count.
7470 int i40e_reconfig_rss_queues(struct i40e_pf
*pf
, int queue_count
)
7472 struct i40e_vsi
*vsi
= pf
->vsi
[pf
->lan_vsi
];
7475 if (!(pf
->flags
& I40E_FLAG_RSS_ENABLED
))
7478 new_rss_size
= min_t(int, queue_count
, pf
->rss_size_max
);
7480 if (queue_count
!= vsi
->num_queue_pairs
) {
7481 vsi
->req_queue_pairs
= queue_count
;
7482 i40e_prep_for_reset(pf
);
7484 pf
->rss_size
= new_rss_size
;
7486 i40e_reset_and_rebuild(pf
, true);
7487 i40e_config_rss(pf
);
7489 dev_info(&pf
->pdev
->dev
, "RSS count: %d\n", pf
->rss_size
);
7490 return pf
->rss_size
;
7494 * i40e_get_npar_bw_setting - Retrieve BW settings for this PF partition
7495 * @pf: board private structure
7497 i40e_status
i40e_get_npar_bw_setting(struct i40e_pf
*pf
)
7500 bool min_valid
, max_valid
;
7503 status
= i40e_read_bw_from_alt_ram(&pf
->hw
, &max_bw
, &min_bw
,
7504 &min_valid
, &max_valid
);
7508 pf
->npar_min_bw
= min_bw
;
7510 pf
->npar_max_bw
= max_bw
;
7517 * i40e_set_npar_bw_setting - Set BW settings for this PF partition
7518 * @pf: board private structure
7520 i40e_status
i40e_set_npar_bw_setting(struct i40e_pf
*pf
)
7522 struct i40e_aqc_configure_partition_bw_data bw_data
;
7525 /* Set the valid bit for this PF */
7526 bw_data
.pf_valid_bits
= cpu_to_le16(1 << pf
->hw
.pf_id
);
7527 bw_data
.max_bw
[pf
->hw
.pf_id
] = pf
->npar_max_bw
& I40E_ALT_BW_VALUE_MASK
;
7528 bw_data
.min_bw
[pf
->hw
.pf_id
] = pf
->npar_min_bw
& I40E_ALT_BW_VALUE_MASK
;
7530 /* Set the new bandwidths */
7531 status
= i40e_aq_configure_partition_bw(&pf
->hw
, &bw_data
, NULL
);
7537 * i40e_commit_npar_bw_setting - Commit BW settings for this PF partition
7538 * @pf: board private structure
7540 i40e_status
i40e_commit_npar_bw_setting(struct i40e_pf
*pf
)
7542 /* Commit temporary BW setting to permanent NVM image */
7543 enum i40e_admin_queue_err last_aq_status
;
7547 if (pf
->hw
.partition_id
!= 1) {
7548 dev_info(&pf
->pdev
->dev
,
7549 "Commit BW only works on partition 1! This is partition %d",
7550 pf
->hw
.partition_id
);
7551 ret
= I40E_NOT_SUPPORTED
;
7555 /* Acquire NVM for read access */
7556 ret
= i40e_acquire_nvm(&pf
->hw
, I40E_RESOURCE_READ
);
7557 last_aq_status
= pf
->hw
.aq
.asq_last_status
;
7559 dev_info(&pf
->pdev
->dev
,
7560 "Cannot acquire NVM for read access, err %d: aq_err %d\n",
7561 ret
, last_aq_status
);
7565 /* Read word 0x10 of NVM - SW compatibility word 1 */
7566 ret
= i40e_aq_read_nvm(&pf
->hw
,
7567 I40E_SR_NVM_CONTROL_WORD
,
7568 0x10, sizeof(nvm_word
), &nvm_word
,
7570 /* Save off last admin queue command status before releasing
7573 last_aq_status
= pf
->hw
.aq
.asq_last_status
;
7574 i40e_release_nvm(&pf
->hw
);
7576 dev_info(&pf
->pdev
->dev
, "NVM read error, err %d aq_err %d\n",
7577 ret
, last_aq_status
);
7581 /* Wait a bit for NVM release to complete */
7584 /* Acquire NVM for write access */
7585 ret
= i40e_acquire_nvm(&pf
->hw
, I40E_RESOURCE_WRITE
);
7586 last_aq_status
= pf
->hw
.aq
.asq_last_status
;
7588 dev_info(&pf
->pdev
->dev
,
7589 "Cannot acquire NVM for write access, err %d: aq_err %d\n",
7590 ret
, last_aq_status
);
7593 /* Write it back out unchanged to initiate update NVM,
7594 * which will force a write of the shadow (alt) RAM to
7595 * the NVM - thus storing the bandwidth values permanently.
7597 ret
= i40e_aq_update_nvm(&pf
->hw
,
7598 I40E_SR_NVM_CONTROL_WORD
,
7599 0x10, sizeof(nvm_word
),
7600 &nvm_word
, true, NULL
);
7601 /* Save off last admin queue command status before releasing
7604 last_aq_status
= pf
->hw
.aq
.asq_last_status
;
7605 i40e_release_nvm(&pf
->hw
);
7607 dev_info(&pf
->pdev
->dev
,
7608 "BW settings NOT SAVED, err %d aq_err %d\n",
7609 ret
, last_aq_status
);
7616 * i40e_sw_init - Initialize general software structures (struct i40e_pf)
7617 * @pf: board private structure to initialize
7619 * i40e_sw_init initializes the Adapter private data structure.
7620 * Fields are initialized based on PCI device information and
7621 * OS network device settings (MTU size).
7623 static int i40e_sw_init(struct i40e_pf
*pf
)
7628 pf
->msg_enable
= netif_msg_init(I40E_DEFAULT_MSG_ENABLE
,
7629 (NETIF_MSG_DRV
|NETIF_MSG_PROBE
|NETIF_MSG_LINK
));
7630 pf
->hw
.debug_mask
= pf
->msg_enable
| I40E_DEBUG_DIAG
;
7631 if (debug
!= -1 && debug
!= I40E_DEFAULT_MSG_ENABLE
) {
7632 if (I40E_DEBUG_USER
& debug
)
7633 pf
->hw
.debug_mask
= debug
;
7634 pf
->msg_enable
= netif_msg_init((debug
& ~I40E_DEBUG_USER
),
7635 I40E_DEFAULT_MSG_ENABLE
);
7638 /* Set default capability flags */
7639 pf
->flags
= I40E_FLAG_RX_CSUM_ENABLED
|
7640 I40E_FLAG_MSI_ENABLED
|
7641 I40E_FLAG_MSIX_ENABLED
;
7643 if (iommu_present(&pci_bus_type
))
7644 pf
->flags
|= I40E_FLAG_RX_PS_ENABLED
;
7646 pf
->flags
|= I40E_FLAG_RX_1BUF_ENABLED
;
7648 /* Set default ITR */
7649 pf
->rx_itr_default
= I40E_ITR_DYNAMIC
| I40E_ITR_RX_DEF
;
7650 pf
->tx_itr_default
= I40E_ITR_DYNAMIC
| I40E_ITR_TX_DEF
;
7652 /* Depending on PF configurations, it is possible that the RSS
7653 * maximum might end up larger than the available queues
7655 pf
->rss_size_max
= 0x1 << pf
->hw
.func_caps
.rss_table_entry_width
;
7657 pf
->rss_table_size
= pf
->hw
.func_caps
.rss_table_size
;
7658 pf
->rss_size_max
= min_t(int, pf
->rss_size_max
,
7659 pf
->hw
.func_caps
.num_tx_qp
);
7660 if (pf
->hw
.func_caps
.rss
) {
7661 pf
->flags
|= I40E_FLAG_RSS_ENABLED
;
7662 pf
->rss_size
= min_t(int, pf
->rss_size_max
, num_online_cpus());
7665 /* MFP mode enabled */
7666 if (pf
->hw
.func_caps
.npar_enable
|| pf
->hw
.func_caps
.mfp_mode_1
) {
7667 pf
->flags
|= I40E_FLAG_MFP_ENABLED
;
7668 dev_info(&pf
->pdev
->dev
, "MFP mode Enabled\n");
7669 if (i40e_get_npar_bw_setting(pf
))
7670 dev_warn(&pf
->pdev
->dev
,
7671 "Could not get NPAR bw settings\n");
7673 dev_info(&pf
->pdev
->dev
,
7674 "Min BW = %8.8x, Max BW = %8.8x\n",
7675 pf
->npar_min_bw
, pf
->npar_max_bw
);
7678 /* FW/NVM is not yet fixed in this regard */
7679 if ((pf
->hw
.func_caps
.fd_filters_guaranteed
> 0) ||
7680 (pf
->hw
.func_caps
.fd_filters_best_effort
> 0)) {
7681 pf
->flags
|= I40E_FLAG_FD_ATR_ENABLED
;
7682 pf
->atr_sample_rate
= I40E_DEFAULT_ATR_SAMPLE_RATE
;
7683 /* Setup a counter for fd_atr per PF */
7684 pf
->fd_atr_cnt_idx
= I40E_FD_ATR_STAT_IDX(pf
->hw
.pf_id
);
7685 if (!(pf
->flags
& I40E_FLAG_MFP_ENABLED
)) {
7686 pf
->flags
|= I40E_FLAG_FD_SB_ENABLED
;
7687 /* Setup a counter for fd_sb per PF */
7688 pf
->fd_sb_cnt_idx
= I40E_FD_SB_STAT_IDX(pf
->hw
.pf_id
);
7690 dev_info(&pf
->pdev
->dev
,
7691 "Flow Director Sideband mode Disabled in MFP mode\n");
7693 pf
->fdir_pf_filter_count
=
7694 pf
->hw
.func_caps
.fd_filters_guaranteed
;
7695 pf
->hw
.fdir_shared_filter_count
=
7696 pf
->hw
.func_caps
.fd_filters_best_effort
;
7699 if (pf
->hw
.func_caps
.vmdq
) {
7700 pf
->flags
|= I40E_FLAG_VMDQ_ENABLED
;
7701 pf
->num_vmdq_vsis
= I40E_DEFAULT_NUM_VMDQ_VSI
;
7702 pf
->num_vmdq_qps
= I40E_DEFAULT_QUEUES_PER_VMDQ
;
7706 err
= i40e_init_pf_fcoe(pf
);
7708 dev_info(&pf
->pdev
->dev
, "init_pf_fcoe failed: %d\n", err
);
7710 #endif /* I40E_FCOE */
7711 #ifdef CONFIG_PCI_IOV
7712 if (pf
->hw
.func_caps
.num_vfs
&& pf
->hw
.partition_id
== 1) {
7713 pf
->num_vf_qps
= I40E_DEFAULT_QUEUES_PER_VF
;
7714 pf
->flags
|= I40E_FLAG_SRIOV_ENABLED
;
7715 pf
->num_req_vfs
= min_t(int,
7716 pf
->hw
.func_caps
.num_vfs
,
7719 #endif /* CONFIG_PCI_IOV */
7720 pf
->eeprom_version
= 0xDEAD;
7721 pf
->lan_veb
= I40E_NO_VEB
;
7722 pf
->lan_vsi
= I40E_NO_VSI
;
7724 /* set up queue assignment tracking */
7725 size
= sizeof(struct i40e_lump_tracking
)
7726 + (sizeof(u16
) * pf
->hw
.func_caps
.num_tx_qp
);
7727 pf
->qp_pile
= kzalloc(size
, GFP_KERNEL
);
7732 pf
->qp_pile
->num_entries
= pf
->hw
.func_caps
.num_tx_qp
;
7733 pf
->qp_pile
->search_hint
= 0;
7735 pf
->tx_timeout_recovery_level
= 1;
7737 mutex_init(&pf
->switch_mutex
);
7739 /* If NPAR is enabled nudge the Tx scheduler */
7740 if (pf
->hw
.func_caps
.npar_enable
&& (!i40e_get_npar_bw_setting(pf
)))
7741 i40e_set_npar_bw_setting(pf
);
7748 * i40e_set_ntuple - set the ntuple feature flag and take action
7749 * @pf: board private structure to initialize
7750 * @features: the feature set that the stack is suggesting
7752 * returns a bool to indicate if reset needs to happen
7754 bool i40e_set_ntuple(struct i40e_pf
*pf
, netdev_features_t features
)
7756 bool need_reset
= false;
7758 /* Check if Flow Director n-tuple support was enabled or disabled. If
7759 * the state changed, we need to reset.
7761 if (features
& NETIF_F_NTUPLE
) {
7762 /* Enable filters and mark for reset */
7763 if (!(pf
->flags
& I40E_FLAG_FD_SB_ENABLED
))
7765 pf
->flags
|= I40E_FLAG_FD_SB_ENABLED
;
7767 /* turn off filters, mark for reset and clear SW filter list */
7768 if (pf
->flags
& I40E_FLAG_FD_SB_ENABLED
) {
7770 i40e_fdir_filter_exit(pf
);
7772 pf
->flags
&= ~I40E_FLAG_FD_SB_ENABLED
;
7773 pf
->auto_disable_flags
&= ~I40E_FLAG_FD_SB_ENABLED
;
7774 /* reset fd counters */
7775 pf
->fd_add_err
= pf
->fd_atr_cnt
= pf
->fd_tcp_rule
= 0;
7776 pf
->fdir_pf_active_filters
= 0;
7777 pf
->flags
|= I40E_FLAG_FD_ATR_ENABLED
;
7778 dev_info(&pf
->pdev
->dev
, "ATR re-enabled.\n");
7779 /* if ATR was auto disabled it can be re-enabled. */
7780 if ((pf
->flags
& I40E_FLAG_FD_ATR_ENABLED
) &&
7781 (pf
->auto_disable_flags
& I40E_FLAG_FD_ATR_ENABLED
))
7782 pf
->auto_disable_flags
&= ~I40E_FLAG_FD_ATR_ENABLED
;
7788 * i40e_set_features - set the netdev feature flags
7789 * @netdev: ptr to the netdev being adjusted
7790 * @features: the feature set that the stack is suggesting
7792 static int i40e_set_features(struct net_device
*netdev
,
7793 netdev_features_t features
)
7795 struct i40e_netdev_priv
*np
= netdev_priv(netdev
);
7796 struct i40e_vsi
*vsi
= np
->vsi
;
7797 struct i40e_pf
*pf
= vsi
->back
;
7800 if (features
& NETIF_F_HW_VLAN_CTAG_RX
)
7801 i40e_vlan_stripping_enable(vsi
);
7803 i40e_vlan_stripping_disable(vsi
);
7805 need_reset
= i40e_set_ntuple(pf
, features
);
7808 i40e_do_reset(pf
, (1 << __I40E_PF_RESET_REQUESTED
));
7813 #ifdef CONFIG_I40E_VXLAN
7815 * i40e_get_vxlan_port_idx - Lookup a possibly offloaded for Rx UDP port
7816 * @pf: board private structure
7817 * @port: The UDP port to look up
7819 * Returns the index number or I40E_MAX_PF_UDP_OFFLOAD_PORTS if port not found
7821 static u8
i40e_get_vxlan_port_idx(struct i40e_pf
*pf
, __be16 port
)
7825 for (i
= 0; i
< I40E_MAX_PF_UDP_OFFLOAD_PORTS
; i
++) {
7826 if (pf
->vxlan_ports
[i
] == port
)
7834 * i40e_add_vxlan_port - Get notifications about VXLAN ports that come up
7835 * @netdev: This physical port's netdev
7836 * @sa_family: Socket Family that VXLAN is notifying us about
7837 * @port: New UDP port number that VXLAN started listening to
7839 static void i40e_add_vxlan_port(struct net_device
*netdev
,
7840 sa_family_t sa_family
, __be16 port
)
7842 struct i40e_netdev_priv
*np
= netdev_priv(netdev
);
7843 struct i40e_vsi
*vsi
= np
->vsi
;
7844 struct i40e_pf
*pf
= vsi
->back
;
7848 if (sa_family
== AF_INET6
)
7851 idx
= i40e_get_vxlan_port_idx(pf
, port
);
7853 /* Check if port already exists */
7854 if (idx
< I40E_MAX_PF_UDP_OFFLOAD_PORTS
) {
7855 netdev_info(netdev
, "vxlan port %d already offloaded\n",
7860 /* Now check if there is space to add the new port */
7861 next_idx
= i40e_get_vxlan_port_idx(pf
, 0);
7863 if (next_idx
== I40E_MAX_PF_UDP_OFFLOAD_PORTS
) {
7864 netdev_info(netdev
, "maximum number of vxlan UDP ports reached, not adding port %d\n",
7869 /* New port: add it and mark its index in the bitmap */
7870 pf
->vxlan_ports
[next_idx
] = port
;
7871 pf
->pending_vxlan_bitmap
|= (1 << next_idx
);
7872 pf
->flags
|= I40E_FLAG_VXLAN_FILTER_SYNC
;
7874 dev_info(&pf
->pdev
->dev
, "adding vxlan port %d\n", ntohs(port
));
7878 * i40e_del_vxlan_port - Get notifications about VXLAN ports that go away
7879 * @netdev: This physical port's netdev
7880 * @sa_family: Socket Family that VXLAN is notifying us about
7881 * @port: UDP port number that VXLAN stopped listening to
7883 static void i40e_del_vxlan_port(struct net_device
*netdev
,
7884 sa_family_t sa_family
, __be16 port
)
7886 struct i40e_netdev_priv
*np
= netdev_priv(netdev
);
7887 struct i40e_vsi
*vsi
= np
->vsi
;
7888 struct i40e_pf
*pf
= vsi
->back
;
7891 if (sa_family
== AF_INET6
)
7894 idx
= i40e_get_vxlan_port_idx(pf
, port
);
7896 /* Check if port already exists */
7897 if (idx
< I40E_MAX_PF_UDP_OFFLOAD_PORTS
) {
7898 /* if port exists, set it to 0 (mark for deletion)
7899 * and make it pending
7901 pf
->vxlan_ports
[idx
] = 0;
7902 pf
->pending_vxlan_bitmap
|= (1 << idx
);
7903 pf
->flags
|= I40E_FLAG_VXLAN_FILTER_SYNC
;
7905 dev_info(&pf
->pdev
->dev
, "deleting vxlan port %d\n",
7908 netdev_warn(netdev
, "vxlan port %d was not found, not deleting\n",
7914 static int i40e_get_phys_port_id(struct net_device
*netdev
,
7915 struct netdev_phys_item_id
*ppid
)
7917 struct i40e_netdev_priv
*np
= netdev_priv(netdev
);
7918 struct i40e_pf
*pf
= np
->vsi
->back
;
7919 struct i40e_hw
*hw
= &pf
->hw
;
7921 if (!(pf
->flags
& I40E_FLAG_PORT_ID_VALID
))
7924 ppid
->id_len
= min_t(int, sizeof(hw
->mac
.port_addr
), sizeof(ppid
->id
));
7925 memcpy(ppid
->id
, hw
->mac
.port_addr
, ppid
->id_len
);
7931 * i40e_ndo_fdb_add - add an entry to the hardware database
7932 * @ndm: the input from the stack
7933 * @tb: pointer to array of nladdr (unused)
7934 * @dev: the net device pointer
7935 * @addr: the MAC address entry being added
7936 * @flags: instructions from stack about fdb operation
7938 static int i40e_ndo_fdb_add(struct ndmsg
*ndm
, struct nlattr
*tb
[],
7939 struct net_device
*dev
,
7940 const unsigned char *addr
, u16 vid
,
7943 struct i40e_netdev_priv
*np
= netdev_priv(dev
);
7944 struct i40e_pf
*pf
= np
->vsi
->back
;
7947 if (!(pf
->flags
& I40E_FLAG_SRIOV_ENABLED
))
7951 pr_info("%s: vlans aren't supported yet for dev_uc|mc_add()\n", dev
->name
);
7955 /* Hardware does not support aging addresses so if a
7956 * ndm_state is given only allow permanent addresses
7958 if (ndm
->ndm_state
&& !(ndm
->ndm_state
& NUD_PERMANENT
)) {
7959 netdev_info(dev
, "FDB only supports static addresses\n");
7963 if (is_unicast_ether_addr(addr
) || is_link_local_ether_addr(addr
))
7964 err
= dev_uc_add_excl(dev
, addr
);
7965 else if (is_multicast_ether_addr(addr
))
7966 err
= dev_mc_add_excl(dev
, addr
);
7970 /* Only return duplicate errors if NLM_F_EXCL is set */
7971 if (err
== -EEXIST
&& !(flags
& NLM_F_EXCL
))
7977 #ifdef HAVE_BRIDGE_ATTRIBS
7979 * i40e_ndo_bridge_setlink - Set the hardware bridge mode
7980 * @dev: the netdev being configured
7981 * @nlh: RTNL message
7983 * Inserts a new hardware bridge if not already created and
7984 * enables the bridging mode requested (VEB or VEPA). If the
7985 * hardware bridge has already been inserted and the request
7986 * is to change the mode then that requires a PF reset to
7987 * allow rebuild of the components with required hardware
7988 * bridge mode enabled.
7990 static int i40e_ndo_bridge_setlink(struct net_device
*dev
,
7991 struct nlmsghdr
*nlh
)
7993 struct i40e_netdev_priv
*np
= netdev_priv(dev
);
7994 struct i40e_vsi
*vsi
= np
->vsi
;
7995 struct i40e_pf
*pf
= vsi
->back
;
7996 struct i40e_veb
*veb
= NULL
;
7997 struct nlattr
*attr
, *br_spec
;
8000 /* Only for PF VSI for now */
8001 if (vsi
->seid
!= pf
->vsi
[pf
->lan_vsi
]->seid
)
8004 /* Find the HW bridge for PF VSI */
8005 for (i
= 0; i
< I40E_MAX_VEB
&& !veb
; i
++) {
8006 if (pf
->veb
[i
] && pf
->veb
[i
]->seid
== vsi
->uplink_seid
)
8010 br_spec
= nlmsg_find_attr(nlh
, sizeof(struct ifinfomsg
), IFLA_AF_SPEC
);
8012 nla_for_each_nested(attr
, br_spec
, rem
) {
8015 if (nla_type(attr
) != IFLA_BRIDGE_MODE
)
8018 mode
= nla_get_u16(attr
);
8019 if ((mode
!= BRIDGE_MODE_VEPA
) &&
8020 (mode
!= BRIDGE_MODE_VEB
))
8023 /* Insert a new HW bridge */
8025 veb
= i40e_veb_setup(pf
, 0, vsi
->uplink_seid
, vsi
->seid
,
8026 vsi
->tc_config
.enabled_tc
);
8028 veb
->bridge_mode
= mode
;
8029 i40e_config_bridge_mode(veb
);
8031 /* No Bridge HW offload available */
8035 } else if (mode
!= veb
->bridge_mode
) {
8036 /* Existing HW bridge but different mode needs reset */
8037 veb
->bridge_mode
= mode
;
8038 /* TODO: If no VFs or VMDq VSIs, disallow VEB mode */
8039 if (mode
== BRIDGE_MODE_VEB
)
8040 pf
->flags
|= I40E_FLAG_VEB_MODE_ENABLED
;
8042 pf
->flags
&= ~I40E_FLAG_VEB_MODE_ENABLED
;
8043 i40e_do_reset(pf
, BIT_ULL(__I40E_PF_RESET_REQUESTED
));
8052 * i40e_ndo_bridge_getlink - Get the hardware bridge mode
8055 * @seq: RTNL message seq #
8056 * @dev: the netdev being configured
8057 * @filter_mask: unused
8059 * Return the mode in which the hardware bridge is operating in
8062 #ifdef HAVE_BRIDGE_FILTER
8063 static int i40e_ndo_bridge_getlink(struct sk_buff
*skb
, u32 pid
, u32 seq
,
8064 struct net_device
*dev
,
8065 u32 __always_unused filter_mask
, int nlflags
)
8067 static int i40e_ndo_bridge_getlink(struct sk_buff
*skb
, u32 pid
, u32 seq
,
8068 struct net_device
*dev
, int nlflags
)
8069 #endif /* HAVE_BRIDGE_FILTER */
8071 struct i40e_netdev_priv
*np
= netdev_priv(dev
);
8072 struct i40e_vsi
*vsi
= np
->vsi
;
8073 struct i40e_pf
*pf
= vsi
->back
;
8074 struct i40e_veb
*veb
= NULL
;
8077 /* Only for PF VSI for now */
8078 if (vsi
->seid
!= pf
->vsi
[pf
->lan_vsi
]->seid
)
8081 /* Find the HW bridge for the PF VSI */
8082 for (i
= 0; i
< I40E_MAX_VEB
&& !veb
; i
++) {
8083 if (pf
->veb
[i
] && pf
->veb
[i
]->seid
== vsi
->uplink_seid
)
8090 return ndo_dflt_bridge_getlink(skb
, pid
, seq
, dev
, veb
->bridge_mode
,
8093 #endif /* HAVE_BRIDGE_ATTRIBS */
8095 static const struct net_device_ops i40e_netdev_ops
= {
8096 .ndo_open
= i40e_open
,
8097 .ndo_stop
= i40e_close
,
8098 .ndo_start_xmit
= i40e_lan_xmit_frame
,
8099 .ndo_get_stats64
= i40e_get_netdev_stats_struct
,
8100 .ndo_set_rx_mode
= i40e_set_rx_mode
,
8101 .ndo_validate_addr
= eth_validate_addr
,
8102 .ndo_set_mac_address
= i40e_set_mac
,
8103 .ndo_change_mtu
= i40e_change_mtu
,
8104 .ndo_do_ioctl
= i40e_ioctl
,
8105 .ndo_tx_timeout
= i40e_tx_timeout
,
8106 .ndo_vlan_rx_add_vid
= i40e_vlan_rx_add_vid
,
8107 .ndo_vlan_rx_kill_vid
= i40e_vlan_rx_kill_vid
,
8108 #ifdef CONFIG_NET_POLL_CONTROLLER
8109 .ndo_poll_controller
= i40e_netpoll
,
8111 .ndo_setup_tc
= i40e_setup_tc
,
8113 .ndo_fcoe_enable
= i40e_fcoe_enable
,
8114 .ndo_fcoe_disable
= i40e_fcoe_disable
,
8116 .ndo_set_features
= i40e_set_features
,
8117 .ndo_set_vf_mac
= i40e_ndo_set_vf_mac
,
8118 .ndo_set_vf_vlan
= i40e_ndo_set_vf_port_vlan
,
8119 .ndo_set_vf_rate
= i40e_ndo_set_vf_bw
,
8120 .ndo_get_vf_config
= i40e_ndo_get_vf_config
,
8121 .ndo_set_vf_link_state
= i40e_ndo_set_vf_link_state
,
8122 .ndo_set_vf_spoofchk
= i40e_ndo_set_vf_spoofchk
,
8123 #ifdef CONFIG_I40E_VXLAN
8124 .ndo_add_vxlan_port
= i40e_add_vxlan_port
,
8125 .ndo_del_vxlan_port
= i40e_del_vxlan_port
,
8127 .ndo_get_phys_port_id
= i40e_get_phys_port_id
,
8128 .ndo_fdb_add
= i40e_ndo_fdb_add
,
8129 #ifdef HAVE_BRIDGE_ATTRIBS
8130 .ndo_bridge_getlink
= i40e_ndo_bridge_getlink
,
8131 .ndo_bridge_setlink
= i40e_ndo_bridge_setlink
,
8132 #endif /* HAVE_BRIDGE_ATTRIBS */
8136 * i40e_config_netdev - Setup the netdev flags
8137 * @vsi: the VSI being configured
8139 * Returns 0 on success, negative value on failure
8141 static int i40e_config_netdev(struct i40e_vsi
*vsi
)
8143 u8 brdcast
[ETH_ALEN
] = {0xff, 0xff, 0xff, 0xff, 0xff, 0xff};
8144 struct i40e_pf
*pf
= vsi
->back
;
8145 struct i40e_hw
*hw
= &pf
->hw
;
8146 struct i40e_netdev_priv
*np
;
8147 struct net_device
*netdev
;
8148 u8 mac_addr
[ETH_ALEN
];
8151 etherdev_size
= sizeof(struct i40e_netdev_priv
);
8152 netdev
= alloc_etherdev_mq(etherdev_size
, vsi
->alloc_queue_pairs
);
8156 vsi
->netdev
= netdev
;
8157 np
= netdev_priv(netdev
);
8160 netdev
->hw_enc_features
|= NETIF_F_IP_CSUM
|
8161 NETIF_F_GSO_UDP_TUNNEL
|
8164 netdev
->features
= NETIF_F_SG
|
8168 NETIF_F_GSO_UDP_TUNNEL
|
8169 NETIF_F_HW_VLAN_CTAG_TX
|
8170 NETIF_F_HW_VLAN_CTAG_RX
|
8171 NETIF_F_HW_VLAN_CTAG_FILTER
|
8180 if (!(pf
->flags
& I40E_FLAG_MFP_ENABLED
))
8181 netdev
->features
|= NETIF_F_NTUPLE
;
8183 /* copy netdev features into list of user selectable features */
8184 netdev
->hw_features
|= netdev
->features
;
8186 if (vsi
->type
== I40E_VSI_MAIN
) {
8187 SET_NETDEV_DEV(netdev
, &pf
->pdev
->dev
);
8188 ether_addr_copy(mac_addr
, hw
->mac
.perm_addr
);
8189 /* The following steps are necessary to prevent reception
8190 * of tagged packets - some older NVM configurations load a
8191 * default a MAC-VLAN filter that accepts any tagged packet
8192 * which must be replaced by a normal filter.
8194 if (!i40e_rm_default_mac_filter(vsi
, mac_addr
))
8195 i40e_add_filter(vsi
, mac_addr
,
8196 I40E_VLAN_ANY
, false, true);
8198 /* relate the VSI_VMDQ name to the VSI_MAIN name */
8199 snprintf(netdev
->name
, IFNAMSIZ
, "%sv%%d",
8200 pf
->vsi
[pf
->lan_vsi
]->netdev
->name
);
8201 random_ether_addr(mac_addr
);
8202 i40e_add_filter(vsi
, mac_addr
, I40E_VLAN_ANY
, false, false);
8204 i40e_add_filter(vsi
, brdcast
, I40E_VLAN_ANY
, false, false);
8206 ether_addr_copy(netdev
->dev_addr
, mac_addr
);
8207 ether_addr_copy(netdev
->perm_addr
, mac_addr
);
8208 /* vlan gets same features (except vlan offload)
8209 * after any tweaks for specific VSI types
8211 netdev
->vlan_features
= netdev
->features
& ~(NETIF_F_HW_VLAN_CTAG_TX
|
8212 NETIF_F_HW_VLAN_CTAG_RX
|
8213 NETIF_F_HW_VLAN_CTAG_FILTER
);
8214 netdev
->priv_flags
|= IFF_UNICAST_FLT
;
8215 netdev
->priv_flags
|= IFF_SUPP_NOFCS
;
8216 /* Setup netdev TC information */
8217 i40e_vsi_config_netdev_tc(vsi
, vsi
->tc_config
.enabled_tc
);
8219 netdev
->netdev_ops
= &i40e_netdev_ops
;
8220 netdev
->watchdog_timeo
= 5 * HZ
;
8221 i40e_set_ethtool_ops(netdev
);
8223 i40e_fcoe_config_netdev(netdev
, vsi
);
8230 * i40e_vsi_delete - Delete a VSI from the switch
8231 * @vsi: the VSI being removed
8233 * Returns 0 on success, negative value on failure
8235 static void i40e_vsi_delete(struct i40e_vsi
*vsi
)
8237 /* remove default VSI is not allowed */
8238 if (vsi
== vsi
->back
->vsi
[vsi
->back
->lan_vsi
])
8241 i40e_aq_delete_element(&vsi
->back
->hw
, vsi
->seid
, NULL
);
8245 * i40e_is_vsi_uplink_mode_veb - Check if the VSI's uplink bridge mode is VEB
8246 * @vsi: the VSI being queried
8248 * Returns 1 if HW bridge mode is VEB and return 0 in case of VEPA mode
8250 int i40e_is_vsi_uplink_mode_veb(struct i40e_vsi
*vsi
)
8252 struct i40e_veb
*veb
;
8253 struct i40e_pf
*pf
= vsi
->back
;
8255 /* Uplink is not a bridge so default to VEB */
8256 if (vsi
->veb_idx
== I40E_NO_VEB
)
8259 veb
= pf
->veb
[vsi
->veb_idx
];
8260 /* Uplink is a bridge in VEPA mode */
8261 if (veb
&& (veb
->bridge_mode
& BRIDGE_MODE_VEPA
))
8264 /* Uplink is a bridge in VEB mode */
8269 * i40e_add_vsi - Add a VSI to the switch
8270 * @vsi: the VSI being configured
8272 * This initializes a VSI context depending on the VSI type to be added and
8273 * passes it down to the add_vsi aq command.
8275 static int i40e_add_vsi(struct i40e_vsi
*vsi
)
8278 struct i40e_mac_filter
*f
, *ftmp
;
8279 struct i40e_pf
*pf
= vsi
->back
;
8280 struct i40e_hw
*hw
= &pf
->hw
;
8281 struct i40e_vsi_context ctxt
;
8282 u8 enabled_tc
= 0x1; /* TC0 enabled */
8285 memset(&ctxt
, 0, sizeof(ctxt
));
8286 switch (vsi
->type
) {
8288 /* The PF's main VSI is already setup as part of the
8289 * device initialization, so we'll not bother with
8290 * the add_vsi call, but we will retrieve the current
8293 ctxt
.seid
= pf
->main_vsi_seid
;
8294 ctxt
.pf_num
= pf
->hw
.pf_id
;
8296 ret
= i40e_aq_get_vsi_params(&pf
->hw
, &ctxt
, NULL
);
8297 ctxt
.flags
= I40E_AQ_VSI_TYPE_PF
;
8299 dev_info(&pf
->pdev
->dev
,
8300 "couldn't get PF vsi config, err %d, aq_err %d\n",
8301 ret
, pf
->hw
.aq
.asq_last_status
);
8304 vsi
->info
= ctxt
.info
;
8305 vsi
->info
.valid_sections
= 0;
8307 vsi
->seid
= ctxt
.seid
;
8308 vsi
->id
= ctxt
.vsi_number
;
8310 enabled_tc
= i40e_pf_get_tc_map(pf
);
8312 /* MFP mode setup queue map and update VSI */
8313 if ((pf
->flags
& I40E_FLAG_MFP_ENABLED
) &&
8314 !(pf
->hw
.func_caps
.iscsi
)) { /* NIC type PF */
8315 memset(&ctxt
, 0, sizeof(ctxt
));
8316 ctxt
.seid
= pf
->main_vsi_seid
;
8317 ctxt
.pf_num
= pf
->hw
.pf_id
;
8319 i40e_vsi_setup_queue_map(vsi
, &ctxt
, enabled_tc
, false);
8320 ret
= i40e_aq_update_vsi_params(hw
, &ctxt
, NULL
);
8322 dev_info(&pf
->pdev
->dev
,
8323 "update vsi failed, aq_err=%d\n",
8324 pf
->hw
.aq
.asq_last_status
);
8328 /* update the local VSI info queue map */
8329 i40e_vsi_update_queue_map(vsi
, &ctxt
);
8330 vsi
->info
.valid_sections
= 0;
8332 /* Default/Main VSI is only enabled for TC0
8333 * reconfigure it to enable all TCs that are
8334 * available on the port in SFP mode.
8335 * For MFP case the iSCSI PF would use this
8336 * flow to enable LAN+iSCSI TC.
8338 ret
= i40e_vsi_config_tc(vsi
, enabled_tc
);
8340 dev_info(&pf
->pdev
->dev
,
8341 "failed to configure TCs for main VSI tc_map 0x%08x, err %d, aq_err %d\n",
8343 pf
->hw
.aq
.asq_last_status
);
8350 ctxt
.pf_num
= hw
->pf_id
;
8352 ctxt
.uplink_seid
= vsi
->uplink_seid
;
8353 ctxt
.connection_type
= I40E_AQ_VSI_CONN_TYPE_NORMAL
;
8354 ctxt
.flags
= I40E_AQ_VSI_TYPE_PF
;
8355 if ((pf
->flags
& I40E_FLAG_VEB_MODE_ENABLED
) &&
8356 (i40e_is_vsi_uplink_mode_veb(vsi
))) {
8357 ctxt
.info
.valid_sections
|=
8358 cpu_to_le16(I40E_AQ_VSI_PROP_SWITCH_VALID
);
8359 ctxt
.info
.switch_id
=
8360 cpu_to_le16(I40E_AQ_VSI_SW_ID_FLAG_ALLOW_LB
);
8362 i40e_vsi_setup_queue_map(vsi
, &ctxt
, enabled_tc
, true);
8365 case I40E_VSI_VMDQ2
:
8366 ctxt
.pf_num
= hw
->pf_id
;
8368 ctxt
.uplink_seid
= vsi
->uplink_seid
;
8369 ctxt
.connection_type
= I40E_AQ_VSI_CONN_TYPE_NORMAL
;
8370 ctxt
.flags
= I40E_AQ_VSI_TYPE_VMDQ2
;
8372 /* This VSI is connected to VEB so the switch_id
8373 * should be set to zero by default.
8375 if (i40e_is_vsi_uplink_mode_veb(vsi
)) {
8376 ctxt
.info
.valid_sections
|=
8377 cpu_to_le16(I40E_AQ_VSI_PROP_SWITCH_VALID
);
8378 ctxt
.info
.switch_id
=
8379 cpu_to_le16(I40E_AQ_VSI_SW_ID_FLAG_ALLOW_LB
);
8382 /* Setup the VSI tx/rx queue map for TC0 only for now */
8383 i40e_vsi_setup_queue_map(vsi
, &ctxt
, enabled_tc
, true);
8386 case I40E_VSI_SRIOV
:
8387 ctxt
.pf_num
= hw
->pf_id
;
8388 ctxt
.vf_num
= vsi
->vf_id
+ hw
->func_caps
.vf_base_id
;
8389 ctxt
.uplink_seid
= vsi
->uplink_seid
;
8390 ctxt
.connection_type
= I40E_AQ_VSI_CONN_TYPE_NORMAL
;
8391 ctxt
.flags
= I40E_AQ_VSI_TYPE_VF
;
8393 /* This VSI is connected to VEB so the switch_id
8394 * should be set to zero by default.
8396 if (i40e_is_vsi_uplink_mode_veb(vsi
)) {
8397 ctxt
.info
.valid_sections
|=
8398 cpu_to_le16(I40E_AQ_VSI_PROP_SWITCH_VALID
);
8399 ctxt
.info
.switch_id
=
8400 cpu_to_le16(I40E_AQ_VSI_SW_ID_FLAG_ALLOW_LB
);
8403 ctxt
.info
.valid_sections
|= cpu_to_le16(I40E_AQ_VSI_PROP_VLAN_VALID
);
8404 ctxt
.info
.port_vlan_flags
|= I40E_AQ_VSI_PVLAN_MODE_ALL
;
8405 if (pf
->vf
[vsi
->vf_id
].spoofchk
) {
8406 ctxt
.info
.valid_sections
|=
8407 cpu_to_le16(I40E_AQ_VSI_PROP_SECURITY_VALID
);
8408 ctxt
.info
.sec_flags
|=
8409 (I40E_AQ_VSI_SEC_FLAG_ENABLE_VLAN_CHK
|
8410 I40E_AQ_VSI_SEC_FLAG_ENABLE_MAC_CHK
);
8412 /* Setup the VSI tx/rx queue map for TC0 only for now */
8413 i40e_vsi_setup_queue_map(vsi
, &ctxt
, enabled_tc
, true);
8418 ret
= i40e_fcoe_vsi_init(vsi
, &ctxt
);
8420 dev_info(&pf
->pdev
->dev
, "failed to initialize FCoE VSI\n");
8425 #endif /* I40E_FCOE */
8430 if (vsi
->type
!= I40E_VSI_MAIN
) {
8431 ret
= i40e_aq_add_vsi(hw
, &ctxt
, NULL
);
8433 dev_info(&vsi
->back
->pdev
->dev
,
8434 "add vsi failed, aq_err=%d\n",
8435 vsi
->back
->hw
.aq
.asq_last_status
);
8439 vsi
->info
= ctxt
.info
;
8440 vsi
->info
.valid_sections
= 0;
8441 vsi
->seid
= ctxt
.seid
;
8442 vsi
->id
= ctxt
.vsi_number
;
8445 /* If macvlan filters already exist, force them to get loaded */
8446 list_for_each_entry_safe(f
, ftmp
, &vsi
->mac_filter_list
, list
) {
8450 if (f
->is_laa
&& vsi
->type
== I40E_VSI_MAIN
) {
8451 struct i40e_aqc_remove_macvlan_element_data element
;
8453 memset(&element
, 0, sizeof(element
));
8454 ether_addr_copy(element
.mac_addr
, f
->macaddr
);
8455 element
.flags
= I40E_AQC_MACVLAN_DEL_PERFECT_MATCH
;
8456 ret
= i40e_aq_remove_macvlan(hw
, vsi
->seid
,
8459 /* some older FW has a different default */
8461 I40E_AQC_MACVLAN_DEL_IGNORE_VLAN
;
8462 i40e_aq_remove_macvlan(hw
, vsi
->seid
,
8466 i40e_aq_mac_address_write(hw
,
8467 I40E_AQC_WRITE_TYPE_LAA_WOL
,
8472 vsi
->flags
|= I40E_VSI_FLAG_FILTER_CHANGED
;
8473 pf
->flags
|= I40E_FLAG_FILTER_SYNC
;
8476 /* Update VSI BW information */
8477 ret
= i40e_vsi_get_bw_info(vsi
);
8479 dev_info(&pf
->pdev
->dev
,
8480 "couldn't get vsi bw info, err %d, aq_err %d\n",
8481 ret
, pf
->hw
.aq
.asq_last_status
);
8482 /* VSI is already added so not tearing that up */
8491 * i40e_vsi_release - Delete a VSI and free its resources
8492 * @vsi: the VSI being removed
8494 * Returns 0 on success or < 0 on error
8496 int i40e_vsi_release(struct i40e_vsi
*vsi
)
8498 struct i40e_mac_filter
*f
, *ftmp
;
8499 struct i40e_veb
*veb
= NULL
;
8506 /* release of a VEB-owner or last VSI is not allowed */
8507 if (vsi
->flags
& I40E_VSI_FLAG_VEB_OWNER
) {
8508 dev_info(&pf
->pdev
->dev
, "VSI %d has existing VEB %d\n",
8509 vsi
->seid
, vsi
->uplink_seid
);
8512 if (vsi
== pf
->vsi
[pf
->lan_vsi
] &&
8513 !test_bit(__I40E_DOWN
, &pf
->state
)) {
8514 dev_info(&pf
->pdev
->dev
, "Can't remove PF VSI\n");
8518 uplink_seid
= vsi
->uplink_seid
;
8519 if (vsi
->type
!= I40E_VSI_SRIOV
) {
8520 if (vsi
->netdev_registered
) {
8521 vsi
->netdev_registered
= false;
8523 /* results in a call to i40e_close() */
8524 unregister_netdev(vsi
->netdev
);
8527 i40e_vsi_close(vsi
);
8529 i40e_vsi_disable_irq(vsi
);
8532 list_for_each_entry_safe(f
, ftmp
, &vsi
->mac_filter_list
, list
)
8533 i40e_del_filter(vsi
, f
->macaddr
, f
->vlan
,
8534 f
->is_vf
, f
->is_netdev
);
8535 i40e_sync_vsi_filters(vsi
);
8537 i40e_vsi_delete(vsi
);
8538 i40e_vsi_free_q_vectors(vsi
);
8540 free_netdev(vsi
->netdev
);
8543 i40e_vsi_clear_rings(vsi
);
8544 i40e_vsi_clear(vsi
);
8546 /* If this was the last thing on the VEB, except for the
8547 * controlling VSI, remove the VEB, which puts the controlling
8548 * VSI onto the next level down in the switch.
8550 * Well, okay, there's one more exception here: don't remove
8551 * the orphan VEBs yet. We'll wait for an explicit remove request
8552 * from up the network stack.
8554 for (n
= 0, i
= 0; i
< pf
->num_alloc_vsi
; i
++) {
8556 pf
->vsi
[i
]->uplink_seid
== uplink_seid
&&
8557 (pf
->vsi
[i
]->flags
& I40E_VSI_FLAG_VEB_OWNER
) == 0) {
8558 n
++; /* count the VSIs */
8561 for (i
= 0; i
< I40E_MAX_VEB
; i
++) {
8564 if (pf
->veb
[i
]->uplink_seid
== uplink_seid
)
8565 n
++; /* count the VEBs */
8566 if (pf
->veb
[i
]->seid
== uplink_seid
)
8569 if (n
== 0 && veb
&& veb
->uplink_seid
!= 0)
8570 i40e_veb_release(veb
);
8576 * i40e_vsi_setup_vectors - Set up the q_vectors for the given VSI
8577 * @vsi: ptr to the VSI
8579 * This should only be called after i40e_vsi_mem_alloc() which allocates the
8580 * corresponding SW VSI structure and initializes num_queue_pairs for the
8581 * newly allocated VSI.
8583 * Returns 0 on success or negative on failure
8585 static int i40e_vsi_setup_vectors(struct i40e_vsi
*vsi
)
8588 struct i40e_pf
*pf
= vsi
->back
;
8590 if (vsi
->q_vectors
[0]) {
8591 dev_info(&pf
->pdev
->dev
, "VSI %d has existing q_vectors\n",
8596 if (vsi
->base_vector
) {
8597 dev_info(&pf
->pdev
->dev
, "VSI %d has non-zero base vector %d\n",
8598 vsi
->seid
, vsi
->base_vector
);
8602 ret
= i40e_vsi_alloc_q_vectors(vsi
);
8604 dev_info(&pf
->pdev
->dev
,
8605 "failed to allocate %d q_vector for VSI %d, ret=%d\n",
8606 vsi
->num_q_vectors
, vsi
->seid
, ret
);
8607 vsi
->num_q_vectors
= 0;
8608 goto vector_setup_out
;
8611 if (vsi
->num_q_vectors
)
8612 vsi
->base_vector
= i40e_get_lump(pf
, pf
->irq_pile
,
8613 vsi
->num_q_vectors
, vsi
->idx
);
8614 if (vsi
->base_vector
< 0) {
8615 dev_info(&pf
->pdev
->dev
,
8616 "failed to get tracking for %d vectors for VSI %d, err=%d\n",
8617 vsi
->num_q_vectors
, vsi
->seid
, vsi
->base_vector
);
8618 i40e_vsi_free_q_vectors(vsi
);
8620 goto vector_setup_out
;
8628 * i40e_vsi_reinit_setup - return and reallocate resources for a VSI
8629 * @vsi: pointer to the vsi.
8631 * This re-allocates a vsi's queue resources.
8633 * Returns pointer to the successfully allocated and configured VSI sw struct
8634 * on success, otherwise returns NULL on failure.
8636 static struct i40e_vsi
*i40e_vsi_reinit_setup(struct i40e_vsi
*vsi
)
8638 struct i40e_pf
*pf
= vsi
->back
;
8642 i40e_put_lump(pf
->qp_pile
, vsi
->base_queue
, vsi
->idx
);
8643 i40e_vsi_clear_rings(vsi
);
8645 i40e_vsi_free_arrays(vsi
, false);
8646 i40e_set_num_rings_in_vsi(vsi
);
8647 ret
= i40e_vsi_alloc_arrays(vsi
, false);
8651 ret
= i40e_get_lump(pf
, pf
->qp_pile
, vsi
->alloc_queue_pairs
, vsi
->idx
);
8653 dev_info(&pf
->pdev
->dev
,
8654 "failed to get tracking for %d queues for VSI %d err=%d\n",
8655 vsi
->alloc_queue_pairs
, vsi
->seid
, ret
);
8658 vsi
->base_queue
= ret
;
8660 /* Update the FW view of the VSI. Force a reset of TC and queue
8661 * layout configurations.
8663 enabled_tc
= pf
->vsi
[pf
->lan_vsi
]->tc_config
.enabled_tc
;
8664 pf
->vsi
[pf
->lan_vsi
]->tc_config
.enabled_tc
= 0;
8665 pf
->vsi
[pf
->lan_vsi
]->seid
= pf
->main_vsi_seid
;
8666 i40e_vsi_config_tc(pf
->vsi
[pf
->lan_vsi
], enabled_tc
);
8668 /* assign it some queues */
8669 ret
= i40e_alloc_rings(vsi
);
8673 /* map all of the rings to the q_vectors */
8674 i40e_vsi_map_rings_to_vectors(vsi
);
8678 i40e_vsi_free_q_vectors(vsi
);
8679 if (vsi
->netdev_registered
) {
8680 vsi
->netdev_registered
= false;
8681 unregister_netdev(vsi
->netdev
);
8682 free_netdev(vsi
->netdev
);
8685 i40e_aq_delete_element(&pf
->hw
, vsi
->seid
, NULL
);
8687 i40e_vsi_clear(vsi
);
8692 * i40e_vsi_setup - Set up a VSI by a given type
8693 * @pf: board private structure
8695 * @uplink_seid: the switch element to link to
8696 * @param1: usage depends upon VSI type. For VF types, indicates VF id
8698 * This allocates the sw VSI structure and its queue resources, then add a VSI
8699 * to the identified VEB.
8701 * Returns pointer to the successfully allocated and configure VSI sw struct on
8702 * success, otherwise returns NULL on failure.
8704 struct i40e_vsi
*i40e_vsi_setup(struct i40e_pf
*pf
, u8 type
,
8705 u16 uplink_seid
, u32 param1
)
8707 struct i40e_vsi
*vsi
= NULL
;
8708 struct i40e_veb
*veb
= NULL
;
8712 /* The requested uplink_seid must be either
8713 * - the PF's port seid
8714 * no VEB is needed because this is the PF
8715 * or this is a Flow Director special case VSI
8716 * - seid of an existing VEB
8717 * - seid of a VSI that owns an existing VEB
8718 * - seid of a VSI that doesn't own a VEB
8719 * a new VEB is created and the VSI becomes the owner
8720 * - seid of the PF VSI, which is what creates the first VEB
8721 * this is a special case of the previous
8723 * Find which uplink_seid we were given and create a new VEB if needed
8725 for (i
= 0; i
< I40E_MAX_VEB
; i
++) {
8726 if (pf
->veb
[i
] && pf
->veb
[i
]->seid
== uplink_seid
) {
8732 if (!veb
&& uplink_seid
!= pf
->mac_seid
) {
8734 for (i
= 0; i
< pf
->num_alloc_vsi
; i
++) {
8735 if (pf
->vsi
[i
] && pf
->vsi
[i
]->seid
== uplink_seid
) {
8741 dev_info(&pf
->pdev
->dev
, "no such uplink_seid %d\n",
8746 if (vsi
->uplink_seid
== pf
->mac_seid
)
8747 veb
= i40e_veb_setup(pf
, 0, pf
->mac_seid
, vsi
->seid
,
8748 vsi
->tc_config
.enabled_tc
);
8749 else if ((vsi
->flags
& I40E_VSI_FLAG_VEB_OWNER
) == 0)
8750 veb
= i40e_veb_setup(pf
, 0, vsi
->uplink_seid
, vsi
->seid
,
8751 vsi
->tc_config
.enabled_tc
);
8753 if (vsi
->seid
!= pf
->vsi
[pf
->lan_vsi
]->seid
) {
8754 dev_info(&vsi
->back
->pdev
->dev
,
8755 "%s: New VSI creation error, uplink seid of LAN VSI expected.\n",
8759 /* We come up by default in VEPA mode if SRIOV is not
8760 * already enabled, in which case we can't force VEPA
8763 if (!(pf
->flags
& I40E_FLAG_VEB_MODE_ENABLED
)) {
8764 veb
->bridge_mode
= BRIDGE_MODE_VEPA
;
8765 pf
->flags
&= ~I40E_FLAG_VEB_MODE_ENABLED
;
8767 i40e_config_bridge_mode(veb
);
8769 for (i
= 0; i
< I40E_MAX_VEB
&& !veb
; i
++) {
8770 if (pf
->veb
[i
] && pf
->veb
[i
]->seid
== vsi
->uplink_seid
)
8774 dev_info(&pf
->pdev
->dev
, "couldn't add VEB\n");
8778 vsi
->flags
|= I40E_VSI_FLAG_VEB_OWNER
;
8779 uplink_seid
= veb
->seid
;
8782 /* get vsi sw struct */
8783 v_idx
= i40e_vsi_mem_alloc(pf
, type
);
8786 vsi
= pf
->vsi
[v_idx
];
8790 vsi
->veb_idx
= (veb
? veb
->idx
: I40E_NO_VEB
);
8792 if (type
== I40E_VSI_MAIN
)
8793 pf
->lan_vsi
= v_idx
;
8794 else if (type
== I40E_VSI_SRIOV
)
8795 vsi
->vf_id
= param1
;
8796 /* assign it some queues */
8797 ret
= i40e_get_lump(pf
, pf
->qp_pile
, vsi
->alloc_queue_pairs
,
8800 dev_info(&pf
->pdev
->dev
,
8801 "failed to get tracking for %d queues for VSI %d err=%d\n",
8802 vsi
->alloc_queue_pairs
, vsi
->seid
, ret
);
8805 vsi
->base_queue
= ret
;
8807 /* get a VSI from the hardware */
8808 vsi
->uplink_seid
= uplink_seid
;
8809 ret
= i40e_add_vsi(vsi
);
8813 switch (vsi
->type
) {
8814 /* setup the netdev if needed */
8816 case I40E_VSI_VMDQ2
:
8818 ret
= i40e_config_netdev(vsi
);
8821 ret
= register_netdev(vsi
->netdev
);
8824 vsi
->netdev_registered
= true;
8825 netif_carrier_off(vsi
->netdev
);
8826 #ifdef CONFIG_I40E_DCB
8827 /* Setup DCB netlink interface */
8828 i40e_dcbnl_setup(vsi
);
8829 #endif /* CONFIG_I40E_DCB */
8833 /* set up vectors and rings if needed */
8834 ret
= i40e_vsi_setup_vectors(vsi
);
8838 ret
= i40e_alloc_rings(vsi
);
8842 /* map all of the rings to the q_vectors */
8843 i40e_vsi_map_rings_to_vectors(vsi
);
8845 i40e_vsi_reset_stats(vsi
);
8849 /* no netdev or rings for the other VSI types */
8856 i40e_vsi_free_q_vectors(vsi
);
8858 if (vsi
->netdev_registered
) {
8859 vsi
->netdev_registered
= false;
8860 unregister_netdev(vsi
->netdev
);
8861 free_netdev(vsi
->netdev
);
8865 i40e_aq_delete_element(&pf
->hw
, vsi
->seid
, NULL
);
8867 i40e_vsi_clear(vsi
);
8873 * i40e_veb_get_bw_info - Query VEB BW information
8874 * @veb: the veb to query
8876 * Query the Tx scheduler BW configuration data for given VEB
8878 static int i40e_veb_get_bw_info(struct i40e_veb
*veb
)
8880 struct i40e_aqc_query_switching_comp_ets_config_resp ets_data
;
8881 struct i40e_aqc_query_switching_comp_bw_config_resp bw_data
;
8882 struct i40e_pf
*pf
= veb
->pf
;
8883 struct i40e_hw
*hw
= &pf
->hw
;
8888 ret
= i40e_aq_query_switch_comp_bw_config(hw
, veb
->seid
,
8891 dev_info(&pf
->pdev
->dev
,
8892 "query veb bw config failed, aq_err=%d\n",
8893 hw
->aq
.asq_last_status
);
8897 ret
= i40e_aq_query_switch_comp_ets_config(hw
, veb
->seid
,
8900 dev_info(&pf
->pdev
->dev
,
8901 "query veb bw ets config failed, aq_err=%d\n",
8902 hw
->aq
.asq_last_status
);
8906 veb
->bw_limit
= le16_to_cpu(ets_data
.port_bw_limit
);
8907 veb
->bw_max_quanta
= ets_data
.tc_bw_max
;
8908 veb
->is_abs_credits
= bw_data
.absolute_credits_enable
;
8909 veb
->enabled_tc
= ets_data
.tc_valid_bits
;
8910 tc_bw_max
= le16_to_cpu(bw_data
.tc_bw_max
[0]) |
8911 (le16_to_cpu(bw_data
.tc_bw_max
[1]) << 16);
8912 for (i
= 0; i
< I40E_MAX_TRAFFIC_CLASS
; i
++) {
8913 veb
->bw_tc_share_credits
[i
] = bw_data
.tc_bw_share_credits
[i
];
8914 veb
->bw_tc_limit_credits
[i
] =
8915 le16_to_cpu(bw_data
.tc_bw_limits
[i
]);
8916 veb
->bw_tc_max_quanta
[i
] = ((tc_bw_max
>> (i
*4)) & 0x7);
8924 * i40e_veb_mem_alloc - Allocates the next available struct veb in the PF
8925 * @pf: board private structure
8927 * On error: returns error code (negative)
8928 * On success: returns vsi index in PF (positive)
8930 static int i40e_veb_mem_alloc(struct i40e_pf
*pf
)
8933 struct i40e_veb
*veb
;
8936 /* Need to protect the allocation of switch elements at the PF level */
8937 mutex_lock(&pf
->switch_mutex
);
8939 /* VEB list may be fragmented if VEB creation/destruction has
8940 * been happening. We can afford to do a quick scan to look
8941 * for any free slots in the list.
8943 * find next empty veb slot, looping back around if necessary
8946 while ((i
< I40E_MAX_VEB
) && (pf
->veb
[i
] != NULL
))
8948 if (i
>= I40E_MAX_VEB
) {
8950 goto err_alloc_veb
; /* out of VEB slots! */
8953 veb
= kzalloc(sizeof(*veb
), GFP_KERNEL
);
8960 veb
->enabled_tc
= 1;
8965 mutex_unlock(&pf
->switch_mutex
);
8970 * i40e_switch_branch_release - Delete a branch of the switch tree
8971 * @branch: where to start deleting
8973 * This uses recursion to find the tips of the branch to be
8974 * removed, deleting until we get back to and can delete this VEB.
8976 static void i40e_switch_branch_release(struct i40e_veb
*branch
)
8978 struct i40e_pf
*pf
= branch
->pf
;
8979 u16 branch_seid
= branch
->seid
;
8980 u16 veb_idx
= branch
->idx
;
8983 /* release any VEBs on this VEB - RECURSION */
8984 for (i
= 0; i
< I40E_MAX_VEB
; i
++) {
8987 if (pf
->veb
[i
]->uplink_seid
== branch
->seid
)
8988 i40e_switch_branch_release(pf
->veb
[i
]);
8991 /* Release the VSIs on this VEB, but not the owner VSI.
8993 * NOTE: Removing the last VSI on a VEB has the SIDE EFFECT of removing
8994 * the VEB itself, so don't use (*branch) after this loop.
8996 for (i
= 0; i
< pf
->num_alloc_vsi
; i
++) {
8999 if (pf
->vsi
[i
]->uplink_seid
== branch_seid
&&
9000 (pf
->vsi
[i
]->flags
& I40E_VSI_FLAG_VEB_OWNER
) == 0) {
9001 i40e_vsi_release(pf
->vsi
[i
]);
9005 /* There's one corner case where the VEB might not have been
9006 * removed, so double check it here and remove it if needed.
9007 * This case happens if the veb was created from the debugfs
9008 * commands and no VSIs were added to it.
9010 if (pf
->veb
[veb_idx
])
9011 i40e_veb_release(pf
->veb
[veb_idx
]);
9015 * i40e_veb_clear - remove veb struct
9016 * @veb: the veb to remove
9018 static void i40e_veb_clear(struct i40e_veb
*veb
)
9024 struct i40e_pf
*pf
= veb
->pf
;
9026 mutex_lock(&pf
->switch_mutex
);
9027 if (pf
->veb
[veb
->idx
] == veb
)
9028 pf
->veb
[veb
->idx
] = NULL
;
9029 mutex_unlock(&pf
->switch_mutex
);
9036 * i40e_veb_release - Delete a VEB and free its resources
9037 * @veb: the VEB being removed
9039 void i40e_veb_release(struct i40e_veb
*veb
)
9041 struct i40e_vsi
*vsi
= NULL
;
9047 /* find the remaining VSI and check for extras */
9048 for (i
= 0; i
< pf
->num_alloc_vsi
; i
++) {
9049 if (pf
->vsi
[i
] && pf
->vsi
[i
]->uplink_seid
== veb
->seid
) {
9055 dev_info(&pf
->pdev
->dev
,
9056 "can't remove VEB %d with %d VSIs left\n",
9061 /* move the remaining VSI to uplink veb */
9062 vsi
->flags
&= ~I40E_VSI_FLAG_VEB_OWNER
;
9063 if (veb
->uplink_seid
) {
9064 vsi
->uplink_seid
= veb
->uplink_seid
;
9065 if (veb
->uplink_seid
== pf
->mac_seid
)
9066 vsi
->veb_idx
= I40E_NO_VEB
;
9068 vsi
->veb_idx
= veb
->veb_idx
;
9071 vsi
->uplink_seid
= pf
->vsi
[pf
->lan_vsi
]->uplink_seid
;
9072 vsi
->veb_idx
= pf
->vsi
[pf
->lan_vsi
]->veb_idx
;
9075 i40e_aq_delete_element(&pf
->hw
, veb
->seid
, NULL
);
9076 i40e_veb_clear(veb
);
9080 * i40e_add_veb - create the VEB in the switch
9081 * @veb: the VEB to be instantiated
9082 * @vsi: the controlling VSI
9084 static int i40e_add_veb(struct i40e_veb
*veb
, struct i40e_vsi
*vsi
)
9086 bool is_default
= false;
9087 bool is_cloud
= false;
9090 /* get a VEB from the hardware */
9091 ret
= i40e_aq_add_veb(&veb
->pf
->hw
, veb
->uplink_seid
, vsi
->seid
,
9092 veb
->enabled_tc
, is_default
,
9093 is_cloud
, &veb
->seid
, NULL
);
9095 dev_info(&veb
->pf
->pdev
->dev
,
9096 "couldn't add VEB, err %d, aq_err %d\n",
9097 ret
, veb
->pf
->hw
.aq
.asq_last_status
);
9101 /* get statistics counter */
9102 ret
= i40e_aq_get_veb_parameters(&veb
->pf
->hw
, veb
->seid
, NULL
, NULL
,
9103 &veb
->stats_idx
, NULL
, NULL
, NULL
);
9105 dev_info(&veb
->pf
->pdev
->dev
,
9106 "couldn't get VEB statistics idx, err %d, aq_err %d\n",
9107 ret
, veb
->pf
->hw
.aq
.asq_last_status
);
9110 ret
= i40e_veb_get_bw_info(veb
);
9112 dev_info(&veb
->pf
->pdev
->dev
,
9113 "couldn't get VEB bw info, err %d, aq_err %d\n",
9114 ret
, veb
->pf
->hw
.aq
.asq_last_status
);
9115 i40e_aq_delete_element(&veb
->pf
->hw
, veb
->seid
, NULL
);
9119 vsi
->uplink_seid
= veb
->seid
;
9120 vsi
->veb_idx
= veb
->idx
;
9121 vsi
->flags
|= I40E_VSI_FLAG_VEB_OWNER
;
9127 * i40e_veb_setup - Set up a VEB
9128 * @pf: board private structure
9129 * @flags: VEB setup flags
9130 * @uplink_seid: the switch element to link to
9131 * @vsi_seid: the initial VSI seid
9132 * @enabled_tc: Enabled TC bit-map
9134 * This allocates the sw VEB structure and links it into the switch
9135 * It is possible and legal for this to be a duplicate of an already
9136 * existing VEB. It is also possible for both uplink and vsi seids
9137 * to be zero, in order to create a floating VEB.
9139 * Returns pointer to the successfully allocated VEB sw struct on
9140 * success, otherwise returns NULL on failure.
9142 struct i40e_veb
*i40e_veb_setup(struct i40e_pf
*pf
, u16 flags
,
9143 u16 uplink_seid
, u16 vsi_seid
,
9146 struct i40e_veb
*veb
, *uplink_veb
= NULL
;
9147 int vsi_idx
, veb_idx
;
9150 /* if one seid is 0, the other must be 0 to create a floating relay */
9151 if ((uplink_seid
== 0 || vsi_seid
== 0) &&
9152 (uplink_seid
+ vsi_seid
!= 0)) {
9153 dev_info(&pf
->pdev
->dev
,
9154 "one, not both seid's are 0: uplink=%d vsi=%d\n",
9155 uplink_seid
, vsi_seid
);
9159 /* make sure there is such a vsi and uplink */
9160 for (vsi_idx
= 0; vsi_idx
< pf
->num_alloc_vsi
; vsi_idx
++)
9161 if (pf
->vsi
[vsi_idx
] && pf
->vsi
[vsi_idx
]->seid
== vsi_seid
)
9163 if (vsi_idx
>= pf
->num_alloc_vsi
&& vsi_seid
!= 0) {
9164 dev_info(&pf
->pdev
->dev
, "vsi seid %d not found\n",
9169 if (uplink_seid
&& uplink_seid
!= pf
->mac_seid
) {
9170 for (veb_idx
= 0; veb_idx
< I40E_MAX_VEB
; veb_idx
++) {
9171 if (pf
->veb
[veb_idx
] &&
9172 pf
->veb
[veb_idx
]->seid
== uplink_seid
) {
9173 uplink_veb
= pf
->veb
[veb_idx
];
9178 dev_info(&pf
->pdev
->dev
,
9179 "uplink seid %d not found\n", uplink_seid
);
9184 /* get veb sw struct */
9185 veb_idx
= i40e_veb_mem_alloc(pf
);
9188 veb
= pf
->veb
[veb_idx
];
9190 veb
->uplink_seid
= uplink_seid
;
9191 veb
->veb_idx
= (uplink_veb
? uplink_veb
->idx
: I40E_NO_VEB
);
9192 veb
->enabled_tc
= (enabled_tc
? enabled_tc
: 0x1);
9194 /* create the VEB in the switch */
9195 ret
= i40e_add_veb(veb
, pf
->vsi
[vsi_idx
]);
9198 if (vsi_idx
== pf
->lan_vsi
)
9199 pf
->lan_veb
= veb
->idx
;
9204 i40e_veb_clear(veb
);
9210 * i40e_setup_pf_switch_element - set PF vars based on switch type
9211 * @pf: board private structure
9212 * @ele: element we are building info from
9213 * @num_reported: total number of elements
9214 * @printconfig: should we print the contents
9216 * helper function to assist in extracting a few useful SEID values.
9218 static void i40e_setup_pf_switch_element(struct i40e_pf
*pf
,
9219 struct i40e_aqc_switch_config_element_resp
*ele
,
9220 u16 num_reported
, bool printconfig
)
9222 u16 downlink_seid
= le16_to_cpu(ele
->downlink_seid
);
9223 u16 uplink_seid
= le16_to_cpu(ele
->uplink_seid
);
9224 u8 element_type
= ele
->element_type
;
9225 u16 seid
= le16_to_cpu(ele
->seid
);
9228 dev_info(&pf
->pdev
->dev
,
9229 "type=%d seid=%d uplink=%d downlink=%d\n",
9230 element_type
, seid
, uplink_seid
, downlink_seid
);
9232 switch (element_type
) {
9233 case I40E_SWITCH_ELEMENT_TYPE_MAC
:
9234 pf
->mac_seid
= seid
;
9236 case I40E_SWITCH_ELEMENT_TYPE_VEB
:
9238 if (uplink_seid
!= pf
->mac_seid
)
9240 if (pf
->lan_veb
== I40E_NO_VEB
) {
9243 /* find existing or else empty VEB */
9244 for (v
= 0; v
< I40E_MAX_VEB
; v
++) {
9245 if (pf
->veb
[v
] && (pf
->veb
[v
]->seid
== seid
)) {
9250 if (pf
->lan_veb
== I40E_NO_VEB
) {
9251 v
= i40e_veb_mem_alloc(pf
);
9258 pf
->veb
[pf
->lan_veb
]->seid
= seid
;
9259 pf
->veb
[pf
->lan_veb
]->uplink_seid
= pf
->mac_seid
;
9260 pf
->veb
[pf
->lan_veb
]->pf
= pf
;
9261 pf
->veb
[pf
->lan_veb
]->veb_idx
= I40E_NO_VEB
;
9263 case I40E_SWITCH_ELEMENT_TYPE_VSI
:
9264 if (num_reported
!= 1)
9266 /* This is immediately after a reset so we can assume this is
9269 pf
->mac_seid
= uplink_seid
;
9270 pf
->pf_seid
= downlink_seid
;
9271 pf
->main_vsi_seid
= seid
;
9273 dev_info(&pf
->pdev
->dev
,
9274 "pf_seid=%d main_vsi_seid=%d\n",
9275 pf
->pf_seid
, pf
->main_vsi_seid
);
9277 case I40E_SWITCH_ELEMENT_TYPE_PF
:
9278 case I40E_SWITCH_ELEMENT_TYPE_VF
:
9279 case I40E_SWITCH_ELEMENT_TYPE_EMP
:
9280 case I40E_SWITCH_ELEMENT_TYPE_BMC
:
9281 case I40E_SWITCH_ELEMENT_TYPE_PE
:
9282 case I40E_SWITCH_ELEMENT_TYPE_PA
:
9283 /* ignore these for now */
9286 dev_info(&pf
->pdev
->dev
, "unknown element type=%d seid=%d\n",
9287 element_type
, seid
);
9293 * i40e_fetch_switch_configuration - Get switch config from firmware
9294 * @pf: board private structure
9295 * @printconfig: should we print the contents
9297 * Get the current switch configuration from the device and
9298 * extract a few useful SEID values.
9300 int i40e_fetch_switch_configuration(struct i40e_pf
*pf
, bool printconfig
)
9302 struct i40e_aqc_get_switch_config_resp
*sw_config
;
9308 aq_buf
= kzalloc(I40E_AQ_LARGE_BUF
, GFP_KERNEL
);
9312 sw_config
= (struct i40e_aqc_get_switch_config_resp
*)aq_buf
;
9314 u16 num_reported
, num_total
;
9316 ret
= i40e_aq_get_switch_config(&pf
->hw
, sw_config
,
9320 dev_info(&pf
->pdev
->dev
,
9321 "get switch config failed %d aq_err=%x\n",
9322 ret
, pf
->hw
.aq
.asq_last_status
);
9327 num_reported
= le16_to_cpu(sw_config
->header
.num_reported
);
9328 num_total
= le16_to_cpu(sw_config
->header
.num_total
);
9331 dev_info(&pf
->pdev
->dev
,
9332 "header: %d reported %d total\n",
9333 num_reported
, num_total
);
9335 for (i
= 0; i
< num_reported
; i
++) {
9336 struct i40e_aqc_switch_config_element_resp
*ele
=
9337 &sw_config
->element
[i
];
9339 i40e_setup_pf_switch_element(pf
, ele
, num_reported
,
9342 } while (next_seid
!= 0);
9349 * i40e_setup_pf_switch - Setup the HW switch on startup or after reset
9350 * @pf: board private structure
9351 * @reinit: if the Main VSI needs to re-initialized.
9353 * Returns 0 on success, negative value on failure
9355 static int i40e_setup_pf_switch(struct i40e_pf
*pf
, bool reinit
)
9359 /* find out what's out there already */
9360 ret
= i40e_fetch_switch_configuration(pf
, false);
9362 dev_info(&pf
->pdev
->dev
,
9363 "couldn't fetch switch config, err %d, aq_err %d\n",
9364 ret
, pf
->hw
.aq
.asq_last_status
);
9367 i40e_pf_reset_stats(pf
);
9369 /* first time setup */
9370 if (pf
->lan_vsi
== I40E_NO_VSI
|| reinit
) {
9371 struct i40e_vsi
*vsi
= NULL
;
9374 /* Set up the PF VSI associated with the PF's main VSI
9375 * that is already in the HW switch
9377 if (pf
->lan_veb
!= I40E_NO_VEB
&& pf
->veb
[pf
->lan_veb
])
9378 uplink_seid
= pf
->veb
[pf
->lan_veb
]->seid
;
9380 uplink_seid
= pf
->mac_seid
;
9381 if (pf
->lan_vsi
== I40E_NO_VSI
)
9382 vsi
= i40e_vsi_setup(pf
, I40E_VSI_MAIN
, uplink_seid
, 0);
9384 vsi
= i40e_vsi_reinit_setup(pf
->vsi
[pf
->lan_vsi
]);
9386 dev_info(&pf
->pdev
->dev
, "setup of MAIN VSI failed\n");
9387 i40e_fdir_teardown(pf
);
9391 /* force a reset of TC and queue layout configurations */
9392 u8 enabled_tc
= pf
->vsi
[pf
->lan_vsi
]->tc_config
.enabled_tc
;
9393 pf
->vsi
[pf
->lan_vsi
]->tc_config
.enabled_tc
= 0;
9394 pf
->vsi
[pf
->lan_vsi
]->seid
= pf
->main_vsi_seid
;
9395 i40e_vsi_config_tc(pf
->vsi
[pf
->lan_vsi
], enabled_tc
);
9397 i40e_vlan_stripping_disable(pf
->vsi
[pf
->lan_vsi
]);
9399 i40e_fdir_sb_setup(pf
);
9401 /* Setup static PF queue filter control settings */
9402 ret
= i40e_setup_pf_filter_control(pf
);
9404 dev_info(&pf
->pdev
->dev
, "setup_pf_filter_control failed: %d\n",
9406 /* Failure here should not stop continuing other steps */
9409 /* enable RSS in the HW, even for only one queue, as the stack can use
9412 if ((pf
->flags
& I40E_FLAG_RSS_ENABLED
))
9413 i40e_config_rss(pf
);
9415 /* fill in link information and enable LSE reporting */
9416 i40e_aq_get_link_info(&pf
->hw
, true, NULL
, NULL
);
9417 i40e_link_event(pf
);
9419 /* Initialize user-specific link properties */
9420 pf
->fc_autoneg_status
= ((pf
->hw
.phy
.link_info
.an_info
&
9421 I40E_AQ_AN_COMPLETED
) ? true : false);
9429 * i40e_determine_queue_usage - Work out queue distribution
9430 * @pf: board private structure
9432 static void i40e_determine_queue_usage(struct i40e_pf
*pf
)
9436 pf
->num_lan_qps
= 0;
9438 pf
->num_fcoe_qps
= 0;
9441 /* Find the max queues to be put into basic use. We'll always be
9442 * using TC0, whether or not DCB is running, and TC0 will get the
9445 queues_left
= pf
->hw
.func_caps
.num_tx_qp
;
9447 if ((queues_left
== 1) ||
9448 !(pf
->flags
& I40E_FLAG_MSIX_ENABLED
)) {
9449 /* one qp for PF, no queues for anything else */
9451 pf
->rss_size
= pf
->num_lan_qps
= 1;
9453 /* make sure all the fancies are disabled */
9454 pf
->flags
&= ~(I40E_FLAG_RSS_ENABLED
|
9456 I40E_FLAG_FCOE_ENABLED
|
9458 I40E_FLAG_FD_SB_ENABLED
|
9459 I40E_FLAG_FD_ATR_ENABLED
|
9460 I40E_FLAG_DCB_CAPABLE
|
9461 I40E_FLAG_SRIOV_ENABLED
|
9462 I40E_FLAG_VMDQ_ENABLED
);
9463 } else if (!(pf
->flags
& (I40E_FLAG_RSS_ENABLED
|
9464 I40E_FLAG_FD_SB_ENABLED
|
9465 I40E_FLAG_FD_ATR_ENABLED
|
9466 I40E_FLAG_DCB_CAPABLE
))) {
9468 pf
->rss_size
= pf
->num_lan_qps
= 1;
9469 queues_left
-= pf
->num_lan_qps
;
9471 pf
->flags
&= ~(I40E_FLAG_RSS_ENABLED
|
9473 I40E_FLAG_FCOE_ENABLED
|
9475 I40E_FLAG_FD_SB_ENABLED
|
9476 I40E_FLAG_FD_ATR_ENABLED
|
9477 I40E_FLAG_DCB_ENABLED
|
9478 I40E_FLAG_VMDQ_ENABLED
);
9480 /* Not enough queues for all TCs */
9481 if ((pf
->flags
& I40E_FLAG_DCB_CAPABLE
) &&
9482 (queues_left
< I40E_MAX_TRAFFIC_CLASS
)) {
9483 pf
->flags
&= ~I40E_FLAG_DCB_CAPABLE
;
9484 dev_info(&pf
->pdev
->dev
, "not enough queues for DCB. DCB is disabled.\n");
9486 pf
->num_lan_qps
= max_t(int, pf
->rss_size_max
,
9488 pf
->num_lan_qps
= min_t(int, pf
->num_lan_qps
,
9489 pf
->hw
.func_caps
.num_tx_qp
);
9491 queues_left
-= pf
->num_lan_qps
;
9495 if (pf
->flags
& I40E_FLAG_FCOE_ENABLED
) {
9496 if (I40E_DEFAULT_FCOE
<= queues_left
) {
9497 pf
->num_fcoe_qps
= I40E_DEFAULT_FCOE
;
9498 } else if (I40E_MINIMUM_FCOE
<= queues_left
) {
9499 pf
->num_fcoe_qps
= I40E_MINIMUM_FCOE
;
9501 pf
->num_fcoe_qps
= 0;
9502 pf
->flags
&= ~I40E_FLAG_FCOE_ENABLED
;
9503 dev_info(&pf
->pdev
->dev
, "not enough queues for FCoE. FCoE feature will be disabled\n");
9506 queues_left
-= pf
->num_fcoe_qps
;
9510 if (pf
->flags
& I40E_FLAG_FD_SB_ENABLED
) {
9511 if (queues_left
> 1) {
9512 queues_left
-= 1; /* save 1 queue for FD */
9514 pf
->flags
&= ~I40E_FLAG_FD_SB_ENABLED
;
9515 dev_info(&pf
->pdev
->dev
, "not enough queues for Flow Director. Flow Director feature is disabled\n");
9519 if ((pf
->flags
& I40E_FLAG_SRIOV_ENABLED
) &&
9520 pf
->num_vf_qps
&& pf
->num_req_vfs
&& queues_left
) {
9521 pf
->num_req_vfs
= min_t(int, pf
->num_req_vfs
,
9522 (queues_left
/ pf
->num_vf_qps
));
9523 queues_left
-= (pf
->num_req_vfs
* pf
->num_vf_qps
);
9526 if ((pf
->flags
& I40E_FLAG_VMDQ_ENABLED
) &&
9527 pf
->num_vmdq_vsis
&& pf
->num_vmdq_qps
&& queues_left
) {
9528 pf
->num_vmdq_vsis
= min_t(int, pf
->num_vmdq_vsis
,
9529 (queues_left
/ pf
->num_vmdq_qps
));
9530 queues_left
-= (pf
->num_vmdq_vsis
* pf
->num_vmdq_qps
);
9533 pf
->queues_left
= queues_left
;
9535 dev_info(&pf
->pdev
->dev
, "fcoe queues = %d\n", pf
->num_fcoe_qps
);
9540 * i40e_setup_pf_filter_control - Setup PF static filter control
9541 * @pf: PF to be setup
9543 * i40e_setup_pf_filter_control sets up a PF's initial filter control
9544 * settings. If PE/FCoE are enabled then it will also set the per PF
9545 * based filter sizes required for them. It also enables Flow director,
9546 * ethertype and macvlan type filter settings for the pf.
9548 * Returns 0 on success, negative on failure
9550 static int i40e_setup_pf_filter_control(struct i40e_pf
*pf
)
9552 struct i40e_filter_control_settings
*settings
= &pf
->filter_settings
;
9554 settings
->hash_lut_size
= I40E_HASH_LUT_SIZE_128
;
9556 /* Flow Director is enabled */
9557 if (pf
->flags
& (I40E_FLAG_FD_SB_ENABLED
| I40E_FLAG_FD_ATR_ENABLED
))
9558 settings
->enable_fdir
= true;
9560 /* Ethtype and MACVLAN filters enabled for PF */
9561 settings
->enable_ethtype
= true;
9562 settings
->enable_macvlan
= true;
9564 if (i40e_set_filter_control(&pf
->hw
, settings
))
9570 #define INFO_STRING_LEN 255
9571 static void i40e_print_features(struct i40e_pf
*pf
)
9573 struct i40e_hw
*hw
= &pf
->hw
;
9576 string
= kzalloc(INFO_STRING_LEN
, GFP_KERNEL
);
9578 dev_err(&pf
->pdev
->dev
, "Features string allocation failed\n");
9584 buf
+= sprintf(string
, "Features: PF-id[%d] ", hw
->pf_id
);
9585 #ifdef CONFIG_PCI_IOV
9586 buf
+= sprintf(buf
, "VFs: %d ", pf
->num_req_vfs
);
9588 buf
+= sprintf(buf
, "VSIs: %d QP: %d RX: %s ",
9589 pf
->hw
.func_caps
.num_vsis
,
9590 pf
->vsi
[pf
->lan_vsi
]->num_queue_pairs
,
9591 pf
->flags
& I40E_FLAG_RX_PS_ENABLED
? "PS" : "1BUF");
9593 if (pf
->flags
& I40E_FLAG_RSS_ENABLED
)
9594 buf
+= sprintf(buf
, "RSS ");
9595 if (pf
->flags
& I40E_FLAG_FD_ATR_ENABLED
)
9596 buf
+= sprintf(buf
, "FD_ATR ");
9597 if (pf
->flags
& I40E_FLAG_FD_SB_ENABLED
) {
9598 buf
+= sprintf(buf
, "FD_SB ");
9599 buf
+= sprintf(buf
, "NTUPLE ");
9601 if (pf
->flags
& I40E_FLAG_DCB_CAPABLE
)
9602 buf
+= sprintf(buf
, "DCB ");
9603 if (pf
->flags
& I40E_FLAG_PTP
)
9604 buf
+= sprintf(buf
, "PTP ");
9606 if (pf
->flags
& I40E_FLAG_FCOE_ENABLED
)
9607 buf
+= sprintf(buf
, "FCOE ");
9610 BUG_ON(buf
> (string
+ INFO_STRING_LEN
));
9611 dev_info(&pf
->pdev
->dev
, "%s\n", string
);
9616 * i40e_probe - Device initialization routine
9617 * @pdev: PCI device information struct
9618 * @ent: entry in i40e_pci_tbl
9620 * i40e_probe initializes a PF identified by a pci_dev structure.
9621 * The OS initialization, configuring of the PF private structure,
9622 * and a hardware reset occur.
9624 * Returns 0 on success, negative on failure
9626 static int i40e_probe(struct pci_dev
*pdev
, const struct pci_device_id
*ent
)
9628 struct i40e_aq_get_phy_abilities_resp abilities
;
9629 unsigned long ioremap_len
;
9632 static u16 pfs_found
;
9638 err
= pci_enable_device_mem(pdev
);
9642 /* set up for high or low dma */
9643 err
= dma_set_mask_and_coherent(&pdev
->dev
, DMA_BIT_MASK(64));
9645 err
= dma_set_mask_and_coherent(&pdev
->dev
, DMA_BIT_MASK(32));
9648 "DMA configuration failed: 0x%x\n", err
);
9653 /* set up pci connections */
9654 err
= pci_request_selected_regions(pdev
, pci_select_bars(pdev
,
9655 IORESOURCE_MEM
), i40e_driver_name
);
9657 dev_info(&pdev
->dev
,
9658 "pci_request_selected_regions failed %d\n", err
);
9662 pci_enable_pcie_error_reporting(pdev
);
9663 pci_set_master(pdev
);
9665 /* Now that we have a PCI connection, we need to do the
9666 * low level device setup. This is primarily setting up
9667 * the Admin Queue structures and then querying for the
9668 * device's current profile information.
9670 pf
= kzalloc(sizeof(*pf
), GFP_KERNEL
);
9677 set_bit(__I40E_DOWN
, &pf
->state
);
9682 ioremap_len
= min_t(unsigned long, pci_resource_len(pdev
, 0),
9683 I40E_MAX_CSR_SPACE
);
9685 hw
->hw_addr
= ioremap(pci_resource_start(pdev
, 0), ioremap_len
);
9688 dev_info(&pdev
->dev
, "ioremap(0x%04x, 0x%04x) failed: 0x%x\n",
9689 (unsigned int)pci_resource_start(pdev
, 0),
9690 (unsigned int)pci_resource_len(pdev
, 0), err
);
9693 hw
->vendor_id
= pdev
->vendor
;
9694 hw
->device_id
= pdev
->device
;
9695 pci_read_config_byte(pdev
, PCI_REVISION_ID
, &hw
->revision_id
);
9696 hw
->subsystem_vendor_id
= pdev
->subsystem_vendor
;
9697 hw
->subsystem_device_id
= pdev
->subsystem_device
;
9698 hw
->bus
.device
= PCI_SLOT(pdev
->devfn
);
9699 hw
->bus
.func
= PCI_FUNC(pdev
->devfn
);
9700 pf
->instance
= pfs_found
;
9703 pf
->msg_enable
= pf
->hw
.debug_mask
;
9704 pf
->msg_enable
= debug
;
9707 /* do a special CORER for clearing PXE mode once at init */
9708 if (hw
->revision_id
== 0 &&
9709 (rd32(hw
, I40E_GLLAN_RCTL_0
) & I40E_GLLAN_RCTL_0_PXE_MODE_MASK
)) {
9710 wr32(hw
, I40E_GLGEN_RTRIG
, I40E_GLGEN_RTRIG_CORER_MASK
);
9715 i40e_clear_pxe_mode(hw
);
9718 /* Reset here to make sure all is clean and to define PF 'n' */
9720 err
= i40e_pf_reset(hw
);
9722 dev_info(&pdev
->dev
, "Initial pf_reset failed: %d\n", err
);
9727 hw
->aq
.num_arq_entries
= I40E_AQ_LEN
;
9728 hw
->aq
.num_asq_entries
= I40E_AQ_LEN
;
9729 hw
->aq
.arq_buf_size
= I40E_MAX_AQ_BUF_SIZE
;
9730 hw
->aq
.asq_buf_size
= I40E_MAX_AQ_BUF_SIZE
;
9731 pf
->adminq_work_limit
= I40E_AQ_WORK_LIMIT
;
9733 snprintf(pf
->int_name
, sizeof(pf
->int_name
) - 1,
9735 dev_driver_string(&pf
->pdev
->dev
), dev_name(&pdev
->dev
));
9737 err
= i40e_init_shared_code(hw
);
9739 dev_info(&pdev
->dev
, "init_shared_code failed: %d\n", err
);
9743 /* set up a default setting for link flow control */
9744 pf
->hw
.fc
.requested_mode
= I40E_FC_NONE
;
9746 err
= i40e_init_adminq(hw
);
9747 dev_info(&pdev
->dev
, "%s\n", i40e_fw_version_str(hw
));
9749 dev_info(&pdev
->dev
,
9750 "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");
9754 if (hw
->aq
.api_maj_ver
== I40E_FW_API_VERSION_MAJOR
&&
9755 hw
->aq
.api_min_ver
> I40E_FW_API_VERSION_MINOR
)
9756 dev_info(&pdev
->dev
,
9757 "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");
9758 else if (hw
->aq
.api_maj_ver
< I40E_FW_API_VERSION_MAJOR
||
9759 hw
->aq
.api_min_ver
< (I40E_FW_API_VERSION_MINOR
- 1))
9760 dev_info(&pdev
->dev
,
9761 "The driver for the device detected an older version of the NVM image than expected. Please update the NVM image.\n");
9763 i40e_verify_eeprom(pf
);
9765 /* Rev 0 hardware was never productized */
9766 if (hw
->revision_id
< 1)
9767 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");
9769 i40e_clear_pxe_mode(hw
);
9770 err
= i40e_get_capabilities(pf
);
9772 goto err_adminq_setup
;
9774 err
= i40e_sw_init(pf
);
9776 dev_info(&pdev
->dev
, "sw_init failed: %d\n", err
);
9780 err
= i40e_init_lan_hmc(hw
, hw
->func_caps
.num_tx_qp
,
9781 hw
->func_caps
.num_rx_qp
,
9782 pf
->fcoe_hmc_cntx_num
, pf
->fcoe_hmc_filt_num
);
9784 dev_info(&pdev
->dev
, "init_lan_hmc failed: %d\n", err
);
9785 goto err_init_lan_hmc
;
9788 err
= i40e_configure_lan_hmc(hw
, I40E_HMC_MODEL_DIRECT_ONLY
);
9790 dev_info(&pdev
->dev
, "configure_lan_hmc failed: %d\n", err
);
9792 goto err_configure_lan_hmc
;
9795 /* Disable LLDP for NICs that have firmware versions lower than v4.3.
9796 * Ignore error return codes because if it was already disabled via
9797 * hardware settings this will fail
9799 if (((pf
->hw
.aq
.fw_maj_ver
== 4) && (pf
->hw
.aq
.fw_min_ver
< 3)) ||
9800 (pf
->hw
.aq
.fw_maj_ver
< 4)) {
9801 dev_info(&pdev
->dev
, "Stopping firmware LLDP agent.\n");
9802 i40e_aq_stop_lldp(hw
, true, NULL
);
9805 i40e_get_mac_addr(hw
, hw
->mac
.addr
);
9806 if (!is_valid_ether_addr(hw
->mac
.addr
)) {
9807 dev_info(&pdev
->dev
, "invalid MAC address %pM\n", hw
->mac
.addr
);
9811 dev_info(&pdev
->dev
, "MAC address: %pM\n", hw
->mac
.addr
);
9812 ether_addr_copy(hw
->mac
.perm_addr
, hw
->mac
.addr
);
9813 i40e_get_port_mac_addr(hw
, hw
->mac
.port_addr
);
9814 if (is_valid_ether_addr(hw
->mac
.port_addr
))
9815 pf
->flags
|= I40E_FLAG_PORT_ID_VALID
;
9817 err
= i40e_get_san_mac_addr(hw
, hw
->mac
.san_addr
);
9819 dev_info(&pdev
->dev
,
9820 "(non-fatal) SAN MAC retrieval failed: %d\n", err
);
9821 if (!is_valid_ether_addr(hw
->mac
.san_addr
)) {
9822 dev_warn(&pdev
->dev
, "invalid SAN MAC address %pM, falling back to LAN MAC\n",
9824 ether_addr_copy(hw
->mac
.san_addr
, hw
->mac
.addr
);
9826 dev_info(&pf
->pdev
->dev
, "SAN MAC: %pM\n", hw
->mac
.san_addr
);
9827 #endif /* I40E_FCOE */
9829 pci_set_drvdata(pdev
, pf
);
9830 pci_save_state(pdev
);
9831 #ifdef CONFIG_I40E_DCB
9832 err
= i40e_init_pf_dcb(pf
);
9834 dev_info(&pdev
->dev
, "DCB init failed %d, disabled\n", err
);
9835 pf
->flags
&= ~I40E_FLAG_DCB_CAPABLE
;
9836 /* Continue without DCB enabled */
9838 #endif /* CONFIG_I40E_DCB */
9840 /* set up periodic task facility */
9841 setup_timer(&pf
->service_timer
, i40e_service_timer
, (unsigned long)pf
);
9842 pf
->service_timer_period
= HZ
;
9844 INIT_WORK(&pf
->service_task
, i40e_service_task
);
9845 clear_bit(__I40E_SERVICE_SCHED
, &pf
->state
);
9846 pf
->flags
|= I40E_FLAG_NEED_LINK_UPDATE
;
9847 pf
->link_check_timeout
= jiffies
;
9849 /* WoL defaults to disabled */
9851 device_set_wakeup_enable(&pf
->pdev
->dev
, pf
->wol_en
);
9853 /* set up the main switch operations */
9854 i40e_determine_queue_usage(pf
);
9855 err
= i40e_init_interrupt_scheme(pf
);
9857 goto err_switch_setup
;
9859 /* The number of VSIs reported by the FW is the minimum guaranteed
9860 * to us; HW supports far more and we share the remaining pool with
9861 * the other PFs. We allocate space for more than the guarantee with
9862 * the understanding that we might not get them all later.
9864 if (pf
->hw
.func_caps
.num_vsis
< I40E_MIN_VSI_ALLOC
)
9865 pf
->num_alloc_vsi
= I40E_MIN_VSI_ALLOC
;
9867 pf
->num_alloc_vsi
= pf
->hw
.func_caps
.num_vsis
;
9869 /* Set up the *vsi struct and our local tracking of the MAIN PF vsi. */
9870 len
= sizeof(struct i40e_vsi
*) * pf
->num_alloc_vsi
;
9871 pf
->vsi
= kzalloc(len
, GFP_KERNEL
);
9874 goto err_switch_setup
;
9877 #ifdef CONFIG_PCI_IOV
9878 /* prep for VF support */
9879 if ((pf
->flags
& I40E_FLAG_SRIOV_ENABLED
) &&
9880 (pf
->flags
& I40E_FLAG_MSIX_ENABLED
) &&
9881 !test_bit(__I40E_BAD_EEPROM
, &pf
->state
)) {
9882 if (pci_num_vf(pdev
))
9883 pf
->flags
|= I40E_FLAG_VEB_MODE_ENABLED
;
9886 err
= i40e_setup_pf_switch(pf
, false);
9888 dev_info(&pdev
->dev
, "setup_pf_switch failed: %d\n", err
);
9891 /* if FDIR VSI was set up, start it now */
9892 for (i
= 0; i
< pf
->num_alloc_vsi
; i
++) {
9893 if (pf
->vsi
[i
] && pf
->vsi
[i
]->type
== I40E_VSI_FDIR
) {
9894 i40e_vsi_open(pf
->vsi
[i
]);
9899 /* driver is only interested in link up/down and module qualification
9900 * reports from firmware
9902 err
= i40e_aq_set_phy_int_mask(&pf
->hw
,
9903 I40E_AQ_EVENT_LINK_UPDOWN
|
9904 I40E_AQ_EVENT_MODULE_QUAL_FAIL
, NULL
);
9906 dev_info(&pf
->pdev
->dev
, "set phy mask fail, aq_err %d\n", err
);
9908 if (((pf
->hw
.aq
.fw_maj_ver
== 4) && (pf
->hw
.aq
.fw_min_ver
< 33)) ||
9909 (pf
->hw
.aq
.fw_maj_ver
< 4)) {
9911 err
= i40e_aq_set_link_restart_an(&pf
->hw
, true, NULL
);
9913 dev_info(&pf
->pdev
->dev
, "link restart failed, aq_err=%d\n",
9914 pf
->hw
.aq
.asq_last_status
);
9916 /* The main driver is (mostly) up and happy. We need to set this state
9917 * before setting up the misc vector or we get a race and the vector
9918 * ends up disabled forever.
9920 clear_bit(__I40E_DOWN
, &pf
->state
);
9922 /* In case of MSIX we are going to setup the misc vector right here
9923 * to handle admin queue events etc. In case of legacy and MSI
9924 * the misc functionality and queue processing is combined in
9925 * the same vector and that gets setup at open.
9927 if (pf
->flags
& I40E_FLAG_MSIX_ENABLED
) {
9928 err
= i40e_setup_misc_vector(pf
);
9930 dev_info(&pdev
->dev
,
9931 "setup of misc vector failed: %d\n", err
);
9936 #ifdef CONFIG_PCI_IOV
9937 /* prep for VF support */
9938 if ((pf
->flags
& I40E_FLAG_SRIOV_ENABLED
) &&
9939 (pf
->flags
& I40E_FLAG_MSIX_ENABLED
) &&
9940 !test_bit(__I40E_BAD_EEPROM
, &pf
->state
)) {
9943 /* disable link interrupts for VFs */
9944 val
= rd32(hw
, I40E_PFGEN_PORTMDIO_NUM
);
9945 val
&= ~I40E_PFGEN_PORTMDIO_NUM_VFLINK_STAT_ENA_MASK
;
9946 wr32(hw
, I40E_PFGEN_PORTMDIO_NUM
, val
);
9949 if (pci_num_vf(pdev
)) {
9950 dev_info(&pdev
->dev
,
9951 "Active VFs found, allocating resources.\n");
9952 err
= i40e_alloc_vfs(pf
, pci_num_vf(pdev
));
9954 dev_info(&pdev
->dev
,
9955 "Error %d allocating resources for existing VFs\n",
9959 #endif /* CONFIG_PCI_IOV */
9963 i40e_dbg_pf_init(pf
);
9965 /* tell the firmware that we're starting */
9966 i40e_send_version(pf
);
9968 /* since everything's happy, start the service_task timer */
9969 mod_timer(&pf
->service_timer
,
9970 round_jiffies(jiffies
+ pf
->service_timer_period
));
9973 /* create FCoE interface */
9974 i40e_fcoe_vsi_setup(pf
);
9977 /* Get the negotiated link width and speed from PCI config space */
9978 pcie_capability_read_word(pf
->pdev
, PCI_EXP_LNKSTA
, &link_status
);
9980 i40e_set_pci_config_data(hw
, link_status
);
9982 dev_info(&pdev
->dev
, "PCI-Express: %s %s\n",
9983 (hw
->bus
.speed
== i40e_bus_speed_8000
? "Speed 8.0GT/s" :
9984 hw
->bus
.speed
== i40e_bus_speed_5000
? "Speed 5.0GT/s" :
9985 hw
->bus
.speed
== i40e_bus_speed_2500
? "Speed 2.5GT/s" :
9987 (hw
->bus
.width
== i40e_bus_width_pcie_x8
? "Width x8" :
9988 hw
->bus
.width
== i40e_bus_width_pcie_x4
? "Width x4" :
9989 hw
->bus
.width
== i40e_bus_width_pcie_x2
? "Width x2" :
9990 hw
->bus
.width
== i40e_bus_width_pcie_x1
? "Width x1" :
9993 if (hw
->bus
.width
< i40e_bus_width_pcie_x8
||
9994 hw
->bus
.speed
< i40e_bus_speed_8000
) {
9995 dev_warn(&pdev
->dev
, "PCI-Express bandwidth available for this device may be insufficient for optimal performance.\n");
9996 dev_warn(&pdev
->dev
, "Please move the device to a different PCI-e link with more lanes and/or higher transfer rate.\n");
9999 /* get the requested speeds from the fw */
10000 err
= i40e_aq_get_phy_capabilities(hw
, false, false, &abilities
, NULL
);
10002 dev_info(&pf
->pdev
->dev
, "get phy abilities failed, aq_err %d, advertised speed settings may not be correct\n",
10004 pf
->hw
.phy
.link_info
.requested_speeds
= abilities
.link_speed
;
10006 /* print a string summarizing features */
10007 i40e_print_features(pf
);
10011 /* Unwind what we've done if something failed in the setup */
10013 set_bit(__I40E_DOWN
, &pf
->state
);
10014 i40e_clear_interrupt_scheme(pf
);
10017 i40e_reset_interrupt_capability(pf
);
10018 del_timer_sync(&pf
->service_timer
);
10020 err_configure_lan_hmc
:
10021 (void)i40e_shutdown_lan_hmc(hw
);
10023 kfree(pf
->qp_pile
);
10026 (void)i40e_shutdown_adminq(hw
);
10028 iounmap(hw
->hw_addr
);
10032 pci_disable_pcie_error_reporting(pdev
);
10033 pci_release_selected_regions(pdev
,
10034 pci_select_bars(pdev
, IORESOURCE_MEM
));
10037 pci_disable_device(pdev
);
10042 * i40e_remove - Device removal routine
10043 * @pdev: PCI device information struct
10045 * i40e_remove is called by the PCI subsystem to alert the driver
10046 * that is should release a PCI device. This could be caused by a
10047 * Hot-Plug event, or because the driver is going to be removed from
10050 static void i40e_remove(struct pci_dev
*pdev
)
10052 struct i40e_pf
*pf
= pci_get_drvdata(pdev
);
10053 i40e_status ret_code
;
10056 i40e_dbg_pf_exit(pf
);
10060 /* no more scheduling of any task */
10061 set_bit(__I40E_DOWN
, &pf
->state
);
10062 del_timer_sync(&pf
->service_timer
);
10063 cancel_work_sync(&pf
->service_task
);
10064 i40e_fdir_teardown(pf
);
10066 if (pf
->flags
& I40E_FLAG_SRIOV_ENABLED
) {
10068 pf
->flags
&= ~I40E_FLAG_SRIOV_ENABLED
;
10071 i40e_fdir_teardown(pf
);
10073 /* If there is a switch structure or any orphans, remove them.
10074 * This will leave only the PF's VSI remaining.
10076 for (i
= 0; i
< I40E_MAX_VEB
; i
++) {
10080 if (pf
->veb
[i
]->uplink_seid
== pf
->mac_seid
||
10081 pf
->veb
[i
]->uplink_seid
== 0)
10082 i40e_switch_branch_release(pf
->veb
[i
]);
10085 /* Now we can shutdown the PF's VSI, just before we kill
10088 if (pf
->vsi
[pf
->lan_vsi
])
10089 i40e_vsi_release(pf
->vsi
[pf
->lan_vsi
]);
10091 /* shutdown and destroy the HMC */
10092 if (pf
->hw
.hmc
.hmc_obj
) {
10093 ret_code
= i40e_shutdown_lan_hmc(&pf
->hw
);
10095 dev_warn(&pdev
->dev
,
10096 "Failed to destroy the HMC resources: %d\n",
10100 /* shutdown the adminq */
10101 ret_code
= i40e_shutdown_adminq(&pf
->hw
);
10103 dev_warn(&pdev
->dev
,
10104 "Failed to destroy the Admin Queue resources: %d\n",
10107 /* Clear all dynamic memory lists of rings, q_vectors, and VSIs */
10108 i40e_clear_interrupt_scheme(pf
);
10109 for (i
= 0; i
< pf
->num_alloc_vsi
; i
++) {
10111 i40e_vsi_clear_rings(pf
->vsi
[i
]);
10112 i40e_vsi_clear(pf
->vsi
[i
]);
10117 for (i
= 0; i
< I40E_MAX_VEB
; i
++) {
10122 kfree(pf
->qp_pile
);
10125 iounmap(pf
->hw
.hw_addr
);
10127 pci_release_selected_regions(pdev
,
10128 pci_select_bars(pdev
, IORESOURCE_MEM
));
10130 pci_disable_pcie_error_reporting(pdev
);
10131 pci_disable_device(pdev
);
10135 * i40e_pci_error_detected - warning that something funky happened in PCI land
10136 * @pdev: PCI device information struct
10138 * Called to warn that something happened and the error handling steps
10139 * are in progress. Allows the driver to quiesce things, be ready for
10142 static pci_ers_result_t
i40e_pci_error_detected(struct pci_dev
*pdev
,
10143 enum pci_channel_state error
)
10145 struct i40e_pf
*pf
= pci_get_drvdata(pdev
);
10147 dev_info(&pdev
->dev
, "%s: error %d\n", __func__
, error
);
10149 /* shutdown all operations */
10150 if (!test_bit(__I40E_SUSPENDED
, &pf
->state
)) {
10152 i40e_prep_for_reset(pf
);
10156 /* Request a slot reset */
10157 return PCI_ERS_RESULT_NEED_RESET
;
10161 * i40e_pci_error_slot_reset - a PCI slot reset just happened
10162 * @pdev: PCI device information struct
10164 * Called to find if the driver can work with the device now that
10165 * the pci slot has been reset. If a basic connection seems good
10166 * (registers are readable and have sane content) then return a
10167 * happy little PCI_ERS_RESULT_xxx.
10169 static pci_ers_result_t
i40e_pci_error_slot_reset(struct pci_dev
*pdev
)
10171 struct i40e_pf
*pf
= pci_get_drvdata(pdev
);
10172 pci_ers_result_t result
;
10176 dev_info(&pdev
->dev
, "%s\n", __func__
);
10177 if (pci_enable_device_mem(pdev
)) {
10178 dev_info(&pdev
->dev
,
10179 "Cannot re-enable PCI device after reset.\n");
10180 result
= PCI_ERS_RESULT_DISCONNECT
;
10182 pci_set_master(pdev
);
10183 pci_restore_state(pdev
);
10184 pci_save_state(pdev
);
10185 pci_wake_from_d3(pdev
, false);
10187 reg
= rd32(&pf
->hw
, I40E_GLGEN_RTRIG
);
10189 result
= PCI_ERS_RESULT_RECOVERED
;
10191 result
= PCI_ERS_RESULT_DISCONNECT
;
10194 err
= pci_cleanup_aer_uncorrect_error_status(pdev
);
10196 dev_info(&pdev
->dev
,
10197 "pci_cleanup_aer_uncorrect_error_status failed 0x%0x\n",
10199 /* non-fatal, continue */
10206 * i40e_pci_error_resume - restart operations after PCI error recovery
10207 * @pdev: PCI device information struct
10209 * Called to allow the driver to bring things back up after PCI error
10210 * and/or reset recovery has finished.
10212 static void i40e_pci_error_resume(struct pci_dev
*pdev
)
10214 struct i40e_pf
*pf
= pci_get_drvdata(pdev
);
10216 dev_info(&pdev
->dev
, "%s\n", __func__
);
10217 if (test_bit(__I40E_SUSPENDED
, &pf
->state
))
10221 i40e_handle_reset_warning(pf
);
10226 * i40e_shutdown - PCI callback for shutting down
10227 * @pdev: PCI device information struct
10229 static void i40e_shutdown(struct pci_dev
*pdev
)
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
);
10237 i40e_prep_for_reset(pf
);
10240 wr32(hw
, I40E_PFPM_APM
, (pf
->wol_en
? I40E_PFPM_APM_APME_MASK
: 0));
10241 wr32(hw
, I40E_PFPM_WUFC
, (pf
->wol_en
? I40E_PFPM_WUFC_MAG_MASK
: 0));
10243 i40e_clear_interrupt_scheme(pf
);
10245 if (system_state
== SYSTEM_POWER_OFF
) {
10246 pci_wake_from_d3(pdev
, pf
->wol_en
);
10247 pci_set_power_state(pdev
, PCI_D3hot
);
10253 * i40e_suspend - PCI callback for moving to D3
10254 * @pdev: PCI device information struct
10256 static int i40e_suspend(struct pci_dev
*pdev
, pm_message_t state
)
10258 struct i40e_pf
*pf
= pci_get_drvdata(pdev
);
10259 struct i40e_hw
*hw
= &pf
->hw
;
10261 set_bit(__I40E_SUSPENDED
, &pf
->state
);
10262 set_bit(__I40E_DOWN
, &pf
->state
);
10263 del_timer_sync(&pf
->service_timer
);
10264 cancel_work_sync(&pf
->service_task
);
10265 i40e_fdir_teardown(pf
);
10268 i40e_prep_for_reset(pf
);
10271 wr32(hw
, I40E_PFPM_APM
, (pf
->wol_en
? I40E_PFPM_APM_APME_MASK
: 0));
10272 wr32(hw
, I40E_PFPM_WUFC
, (pf
->wol_en
? I40E_PFPM_WUFC_MAG_MASK
: 0));
10274 pci_wake_from_d3(pdev
, pf
->wol_en
);
10275 pci_set_power_state(pdev
, PCI_D3hot
);
10281 * i40e_resume - PCI callback for waking up from D3
10282 * @pdev: PCI device information struct
10284 static int i40e_resume(struct pci_dev
*pdev
)
10286 struct i40e_pf
*pf
= pci_get_drvdata(pdev
);
10289 pci_set_power_state(pdev
, PCI_D0
);
10290 pci_restore_state(pdev
);
10291 /* pci_restore_state() clears dev->state_saves, so
10292 * call pci_save_state() again to restore it.
10294 pci_save_state(pdev
);
10296 err
= pci_enable_device_mem(pdev
);
10298 dev_err(&pdev
->dev
,
10299 "%s: Cannot enable PCI device from suspend\n",
10303 pci_set_master(pdev
);
10305 /* no wakeup events while running */
10306 pci_wake_from_d3(pdev
, false);
10308 /* handling the reset will rebuild the device state */
10309 if (test_and_clear_bit(__I40E_SUSPENDED
, &pf
->state
)) {
10310 clear_bit(__I40E_DOWN
, &pf
->state
);
10312 i40e_reset_and_rebuild(pf
, false);
10320 static const struct pci_error_handlers i40e_err_handler
= {
10321 .error_detected
= i40e_pci_error_detected
,
10322 .slot_reset
= i40e_pci_error_slot_reset
,
10323 .resume
= i40e_pci_error_resume
,
10326 static struct pci_driver i40e_driver
= {
10327 .name
= i40e_driver_name
,
10328 .id_table
= i40e_pci_tbl
,
10329 .probe
= i40e_probe
,
10330 .remove
= i40e_remove
,
10332 .suspend
= i40e_suspend
,
10333 .resume
= i40e_resume
,
10335 .shutdown
= i40e_shutdown
,
10336 .err_handler
= &i40e_err_handler
,
10337 .sriov_configure
= i40e_pci_sriov_configure
,
10341 * i40e_init_module - Driver registration routine
10343 * i40e_init_module is the first routine called when the driver is
10344 * loaded. All it does is register with the PCI subsystem.
10346 static int __init
i40e_init_module(void)
10348 pr_info("%s: %s - version %s\n", i40e_driver_name
,
10349 i40e_driver_string
, i40e_driver_version_str
);
10350 pr_info("%s: %s\n", i40e_driver_name
, i40e_copyright
);
10353 return pci_register_driver(&i40e_driver
);
10355 module_init(i40e_init_module
);
10358 * i40e_exit_module - Driver exit cleanup routine
10360 * i40e_exit_module is called just before the driver is removed
10363 static void __exit
i40e_exit_module(void)
10365 pci_unregister_driver(&i40e_driver
);
10368 module_exit(i40e_exit_module
);