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 4
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 /* Collect Link XOFF stats when PFC is disabled */
776 if (!dcb_cfg
->pfc
.pfcenable
) {
777 i40e_update_link_xoff_rx(pf
);
781 for (i
= 0; i
< I40E_MAX_USER_PRIORITY
; i
++) {
782 u64 prio_xoff
= nsd
->priority_xoff_rx
[i
];
783 i40e_stat_update32(hw
, I40E_GLPRT_PXOFFRXC(hw
->port
, i
),
784 pf
->stat_offsets_loaded
,
785 &osd
->priority_xoff_rx
[i
],
786 &nsd
->priority_xoff_rx
[i
]);
788 /* No new PFC xoff rx */
789 if (!(nsd
->priority_xoff_rx
[i
] - prio_xoff
))
791 /* Get the TC for given priority */
792 tc
= dcb_cfg
->etscfg
.prioritytable
[i
];
796 /* Clear the __I40E_HANG_CHECK_ARMED bit for Tx rings */
797 for (v
= 0; v
< pf
->num_alloc_vsi
; v
++) {
798 struct i40e_vsi
*vsi
= pf
->vsi
[v
];
800 if (!vsi
|| !vsi
->tx_rings
[0])
803 for (i
= 0; i
< vsi
->num_queue_pairs
; i
++) {
804 struct i40e_ring
*ring
= vsi
->tx_rings
[i
];
808 clear_bit(__I40E_HANG_CHECK_ARMED
,
815 * i40e_update_vsi_stats - Update the vsi statistics counters.
816 * @vsi: the VSI to be updated
818 * There are a few instances where we store the same stat in a
819 * couple of different structs. This is partly because we have
820 * the netdev stats that need to be filled out, which is slightly
821 * different from the "eth_stats" defined by the chip and used in
822 * VF communications. We sort it out here.
824 static void i40e_update_vsi_stats(struct i40e_vsi
*vsi
)
826 struct i40e_pf
*pf
= vsi
->back
;
827 struct rtnl_link_stats64
*ons
;
828 struct rtnl_link_stats64
*ns
; /* netdev stats */
829 struct i40e_eth_stats
*oes
;
830 struct i40e_eth_stats
*es
; /* device's eth stats */
831 u32 tx_restart
, tx_busy
;
840 if (test_bit(__I40E_DOWN
, &vsi
->state
) ||
841 test_bit(__I40E_CONFIG_BUSY
, &pf
->state
))
844 ns
= i40e_get_vsi_stats_struct(vsi
);
845 ons
= &vsi
->net_stats_offsets
;
846 es
= &vsi
->eth_stats
;
847 oes
= &vsi
->eth_stats_offsets
;
849 /* Gather up the netdev and vsi stats that the driver collects
850 * on the fly during packet processing
854 tx_restart
= tx_busy
= 0;
858 for (q
= 0; q
< vsi
->num_queue_pairs
; q
++) {
860 p
= ACCESS_ONCE(vsi
->tx_rings
[q
]);
863 start
= u64_stats_fetch_begin_irq(&p
->syncp
);
864 packets
= p
->stats
.packets
;
865 bytes
= p
->stats
.bytes
;
866 } while (u64_stats_fetch_retry_irq(&p
->syncp
, start
));
869 tx_restart
+= p
->tx_stats
.restart_queue
;
870 tx_busy
+= p
->tx_stats
.tx_busy
;
872 /* Rx queue is part of the same block as Tx queue */
875 start
= u64_stats_fetch_begin_irq(&p
->syncp
);
876 packets
= p
->stats
.packets
;
877 bytes
= p
->stats
.bytes
;
878 } while (u64_stats_fetch_retry_irq(&p
->syncp
, start
));
881 rx_buf
+= p
->rx_stats
.alloc_buff_failed
;
882 rx_page
+= p
->rx_stats
.alloc_page_failed
;
885 vsi
->tx_restart
= tx_restart
;
886 vsi
->tx_busy
= tx_busy
;
887 vsi
->rx_page_failed
= rx_page
;
888 vsi
->rx_buf_failed
= rx_buf
;
890 ns
->rx_packets
= rx_p
;
892 ns
->tx_packets
= tx_p
;
895 /* update netdev stats from eth stats */
896 i40e_update_eth_stats(vsi
);
897 ons
->tx_errors
= oes
->tx_errors
;
898 ns
->tx_errors
= es
->tx_errors
;
899 ons
->multicast
= oes
->rx_multicast
;
900 ns
->multicast
= es
->rx_multicast
;
901 ons
->rx_dropped
= oes
->rx_discards
;
902 ns
->rx_dropped
= es
->rx_discards
;
903 ons
->tx_dropped
= oes
->tx_discards
;
904 ns
->tx_dropped
= es
->tx_discards
;
906 /* pull in a couple PF stats if this is the main vsi */
907 if (vsi
== pf
->vsi
[pf
->lan_vsi
]) {
908 ns
->rx_crc_errors
= pf
->stats
.crc_errors
;
909 ns
->rx_errors
= pf
->stats
.crc_errors
+ pf
->stats
.illegal_bytes
;
910 ns
->rx_length_errors
= pf
->stats
.rx_length_errors
;
915 * i40e_update_pf_stats - Update the PF statistics counters.
916 * @pf: the PF to be updated
918 static void i40e_update_pf_stats(struct i40e_pf
*pf
)
920 struct i40e_hw_port_stats
*osd
= &pf
->stats_offsets
;
921 struct i40e_hw_port_stats
*nsd
= &pf
->stats
;
922 struct i40e_hw
*hw
= &pf
->hw
;
926 i40e_stat_update48(hw
, I40E_GLPRT_GORCH(hw
->port
),
927 I40E_GLPRT_GORCL(hw
->port
),
928 pf
->stat_offsets_loaded
,
929 &osd
->eth
.rx_bytes
, &nsd
->eth
.rx_bytes
);
930 i40e_stat_update48(hw
, I40E_GLPRT_GOTCH(hw
->port
),
931 I40E_GLPRT_GOTCL(hw
->port
),
932 pf
->stat_offsets_loaded
,
933 &osd
->eth
.tx_bytes
, &nsd
->eth
.tx_bytes
);
934 i40e_stat_update32(hw
, I40E_GLPRT_RDPC(hw
->port
),
935 pf
->stat_offsets_loaded
,
936 &osd
->eth
.rx_discards
,
937 &nsd
->eth
.rx_discards
);
938 i40e_stat_update48(hw
, I40E_GLPRT_UPRCH(hw
->port
),
939 I40E_GLPRT_UPRCL(hw
->port
),
940 pf
->stat_offsets_loaded
,
941 &osd
->eth
.rx_unicast
,
942 &nsd
->eth
.rx_unicast
);
943 i40e_stat_update48(hw
, I40E_GLPRT_MPRCH(hw
->port
),
944 I40E_GLPRT_MPRCL(hw
->port
),
945 pf
->stat_offsets_loaded
,
946 &osd
->eth
.rx_multicast
,
947 &nsd
->eth
.rx_multicast
);
948 i40e_stat_update48(hw
, I40E_GLPRT_BPRCH(hw
->port
),
949 I40E_GLPRT_BPRCL(hw
->port
),
950 pf
->stat_offsets_loaded
,
951 &osd
->eth
.rx_broadcast
,
952 &nsd
->eth
.rx_broadcast
);
953 i40e_stat_update48(hw
, I40E_GLPRT_UPTCH(hw
->port
),
954 I40E_GLPRT_UPTCL(hw
->port
),
955 pf
->stat_offsets_loaded
,
956 &osd
->eth
.tx_unicast
,
957 &nsd
->eth
.tx_unicast
);
958 i40e_stat_update48(hw
, I40E_GLPRT_MPTCH(hw
->port
),
959 I40E_GLPRT_MPTCL(hw
->port
),
960 pf
->stat_offsets_loaded
,
961 &osd
->eth
.tx_multicast
,
962 &nsd
->eth
.tx_multicast
);
963 i40e_stat_update48(hw
, I40E_GLPRT_BPTCH(hw
->port
),
964 I40E_GLPRT_BPTCL(hw
->port
),
965 pf
->stat_offsets_loaded
,
966 &osd
->eth
.tx_broadcast
,
967 &nsd
->eth
.tx_broadcast
);
969 i40e_stat_update32(hw
, I40E_GLPRT_TDOLD(hw
->port
),
970 pf
->stat_offsets_loaded
,
971 &osd
->tx_dropped_link_down
,
972 &nsd
->tx_dropped_link_down
);
974 i40e_stat_update32(hw
, I40E_GLPRT_CRCERRS(hw
->port
),
975 pf
->stat_offsets_loaded
,
976 &osd
->crc_errors
, &nsd
->crc_errors
);
978 i40e_stat_update32(hw
, I40E_GLPRT_ILLERRC(hw
->port
),
979 pf
->stat_offsets_loaded
,
980 &osd
->illegal_bytes
, &nsd
->illegal_bytes
);
982 i40e_stat_update32(hw
, I40E_GLPRT_MLFC(hw
->port
),
983 pf
->stat_offsets_loaded
,
984 &osd
->mac_local_faults
,
985 &nsd
->mac_local_faults
);
986 i40e_stat_update32(hw
, I40E_GLPRT_MRFC(hw
->port
),
987 pf
->stat_offsets_loaded
,
988 &osd
->mac_remote_faults
,
989 &nsd
->mac_remote_faults
);
991 i40e_stat_update32(hw
, I40E_GLPRT_RLEC(hw
->port
),
992 pf
->stat_offsets_loaded
,
993 &osd
->rx_length_errors
,
994 &nsd
->rx_length_errors
);
996 i40e_stat_update32(hw
, I40E_GLPRT_LXONRXC(hw
->port
),
997 pf
->stat_offsets_loaded
,
998 &osd
->link_xon_rx
, &nsd
->link_xon_rx
);
999 i40e_stat_update32(hw
, I40E_GLPRT_LXONTXC(hw
->port
),
1000 pf
->stat_offsets_loaded
,
1001 &osd
->link_xon_tx
, &nsd
->link_xon_tx
);
1002 i40e_update_prio_xoff_rx(pf
); /* handles I40E_GLPRT_LXOFFRXC */
1003 i40e_stat_update32(hw
, I40E_GLPRT_LXOFFTXC(hw
->port
),
1004 pf
->stat_offsets_loaded
,
1005 &osd
->link_xoff_tx
, &nsd
->link_xoff_tx
);
1007 for (i
= 0; i
< 8; i
++) {
1008 i40e_stat_update32(hw
, I40E_GLPRT_PXONRXC(hw
->port
, i
),
1009 pf
->stat_offsets_loaded
,
1010 &osd
->priority_xon_rx
[i
],
1011 &nsd
->priority_xon_rx
[i
]);
1012 i40e_stat_update32(hw
, I40E_GLPRT_PXONTXC(hw
->port
, i
),
1013 pf
->stat_offsets_loaded
,
1014 &osd
->priority_xon_tx
[i
],
1015 &nsd
->priority_xon_tx
[i
]);
1016 i40e_stat_update32(hw
, I40E_GLPRT_PXOFFTXC(hw
->port
, i
),
1017 pf
->stat_offsets_loaded
,
1018 &osd
->priority_xoff_tx
[i
],
1019 &nsd
->priority_xoff_tx
[i
]);
1020 i40e_stat_update32(hw
,
1021 I40E_GLPRT_RXON2OFFCNT(hw
->port
, i
),
1022 pf
->stat_offsets_loaded
,
1023 &osd
->priority_xon_2_xoff
[i
],
1024 &nsd
->priority_xon_2_xoff
[i
]);
1027 i40e_stat_update48(hw
, I40E_GLPRT_PRC64H(hw
->port
),
1028 I40E_GLPRT_PRC64L(hw
->port
),
1029 pf
->stat_offsets_loaded
,
1030 &osd
->rx_size_64
, &nsd
->rx_size_64
);
1031 i40e_stat_update48(hw
, I40E_GLPRT_PRC127H(hw
->port
),
1032 I40E_GLPRT_PRC127L(hw
->port
),
1033 pf
->stat_offsets_loaded
,
1034 &osd
->rx_size_127
, &nsd
->rx_size_127
);
1035 i40e_stat_update48(hw
, I40E_GLPRT_PRC255H(hw
->port
),
1036 I40E_GLPRT_PRC255L(hw
->port
),
1037 pf
->stat_offsets_loaded
,
1038 &osd
->rx_size_255
, &nsd
->rx_size_255
);
1039 i40e_stat_update48(hw
, I40E_GLPRT_PRC511H(hw
->port
),
1040 I40E_GLPRT_PRC511L(hw
->port
),
1041 pf
->stat_offsets_loaded
,
1042 &osd
->rx_size_511
, &nsd
->rx_size_511
);
1043 i40e_stat_update48(hw
, I40E_GLPRT_PRC1023H(hw
->port
),
1044 I40E_GLPRT_PRC1023L(hw
->port
),
1045 pf
->stat_offsets_loaded
,
1046 &osd
->rx_size_1023
, &nsd
->rx_size_1023
);
1047 i40e_stat_update48(hw
, I40E_GLPRT_PRC1522H(hw
->port
),
1048 I40E_GLPRT_PRC1522L(hw
->port
),
1049 pf
->stat_offsets_loaded
,
1050 &osd
->rx_size_1522
, &nsd
->rx_size_1522
);
1051 i40e_stat_update48(hw
, I40E_GLPRT_PRC9522H(hw
->port
),
1052 I40E_GLPRT_PRC9522L(hw
->port
),
1053 pf
->stat_offsets_loaded
,
1054 &osd
->rx_size_big
, &nsd
->rx_size_big
);
1056 i40e_stat_update48(hw
, I40E_GLPRT_PTC64H(hw
->port
),
1057 I40E_GLPRT_PTC64L(hw
->port
),
1058 pf
->stat_offsets_loaded
,
1059 &osd
->tx_size_64
, &nsd
->tx_size_64
);
1060 i40e_stat_update48(hw
, I40E_GLPRT_PTC127H(hw
->port
),
1061 I40E_GLPRT_PTC127L(hw
->port
),
1062 pf
->stat_offsets_loaded
,
1063 &osd
->tx_size_127
, &nsd
->tx_size_127
);
1064 i40e_stat_update48(hw
, I40E_GLPRT_PTC255H(hw
->port
),
1065 I40E_GLPRT_PTC255L(hw
->port
),
1066 pf
->stat_offsets_loaded
,
1067 &osd
->tx_size_255
, &nsd
->tx_size_255
);
1068 i40e_stat_update48(hw
, I40E_GLPRT_PTC511H(hw
->port
),
1069 I40E_GLPRT_PTC511L(hw
->port
),
1070 pf
->stat_offsets_loaded
,
1071 &osd
->tx_size_511
, &nsd
->tx_size_511
);
1072 i40e_stat_update48(hw
, I40E_GLPRT_PTC1023H(hw
->port
),
1073 I40E_GLPRT_PTC1023L(hw
->port
),
1074 pf
->stat_offsets_loaded
,
1075 &osd
->tx_size_1023
, &nsd
->tx_size_1023
);
1076 i40e_stat_update48(hw
, I40E_GLPRT_PTC1522H(hw
->port
),
1077 I40E_GLPRT_PTC1522L(hw
->port
),
1078 pf
->stat_offsets_loaded
,
1079 &osd
->tx_size_1522
, &nsd
->tx_size_1522
);
1080 i40e_stat_update48(hw
, I40E_GLPRT_PTC9522H(hw
->port
),
1081 I40E_GLPRT_PTC9522L(hw
->port
),
1082 pf
->stat_offsets_loaded
,
1083 &osd
->tx_size_big
, &nsd
->tx_size_big
);
1085 i40e_stat_update32(hw
, I40E_GLPRT_RUC(hw
->port
),
1086 pf
->stat_offsets_loaded
,
1087 &osd
->rx_undersize
, &nsd
->rx_undersize
);
1088 i40e_stat_update32(hw
, I40E_GLPRT_RFC(hw
->port
),
1089 pf
->stat_offsets_loaded
,
1090 &osd
->rx_fragments
, &nsd
->rx_fragments
);
1091 i40e_stat_update32(hw
, I40E_GLPRT_ROC(hw
->port
),
1092 pf
->stat_offsets_loaded
,
1093 &osd
->rx_oversize
, &nsd
->rx_oversize
);
1094 i40e_stat_update32(hw
, I40E_GLPRT_RJC(hw
->port
),
1095 pf
->stat_offsets_loaded
,
1096 &osd
->rx_jabber
, &nsd
->rx_jabber
);
1099 i40e_stat_update32(hw
,
1100 I40E_GLQF_PCNT(I40E_FD_ATR_STAT_IDX(pf
->hw
.pf_id
)),
1101 pf
->stat_offsets_loaded
,
1102 &osd
->fd_atr_match
, &nsd
->fd_atr_match
);
1103 i40e_stat_update32(hw
,
1104 I40E_GLQF_PCNT(I40E_FD_SB_STAT_IDX(pf
->hw
.pf_id
)),
1105 pf
->stat_offsets_loaded
,
1106 &osd
->fd_sb_match
, &nsd
->fd_sb_match
);
1107 i40e_stat_update32(hw
,
1108 I40E_GLQF_PCNT(I40E_FD_ATR_TUNNEL_STAT_IDX(pf
->hw
.pf_id
)),
1109 pf
->stat_offsets_loaded
,
1110 &osd
->fd_atr_tunnel_match
, &nsd
->fd_atr_tunnel_match
);
1112 val
= rd32(hw
, I40E_PRTPM_EEE_STAT
);
1113 nsd
->tx_lpi_status
=
1114 (val
& I40E_PRTPM_EEE_STAT_TX_LPI_STATUS_MASK
) >>
1115 I40E_PRTPM_EEE_STAT_TX_LPI_STATUS_SHIFT
;
1116 nsd
->rx_lpi_status
=
1117 (val
& I40E_PRTPM_EEE_STAT_RX_LPI_STATUS_MASK
) >>
1118 I40E_PRTPM_EEE_STAT_RX_LPI_STATUS_SHIFT
;
1119 i40e_stat_update32(hw
, I40E_PRTPM_TLPIC
,
1120 pf
->stat_offsets_loaded
,
1121 &osd
->tx_lpi_count
, &nsd
->tx_lpi_count
);
1122 i40e_stat_update32(hw
, I40E_PRTPM_RLPIC
,
1123 pf
->stat_offsets_loaded
,
1124 &osd
->rx_lpi_count
, &nsd
->rx_lpi_count
);
1126 if (pf
->flags
& I40E_FLAG_FD_SB_ENABLED
&&
1127 !(pf
->auto_disable_flags
& I40E_FLAG_FD_SB_ENABLED
))
1128 nsd
->fd_sb_status
= true;
1130 nsd
->fd_sb_status
= false;
1132 if (pf
->flags
& I40E_FLAG_FD_ATR_ENABLED
&&
1133 !(pf
->auto_disable_flags
& I40E_FLAG_FD_ATR_ENABLED
))
1134 nsd
->fd_atr_status
= true;
1136 nsd
->fd_atr_status
= false;
1138 pf
->stat_offsets_loaded
= true;
1142 * i40e_update_stats - Update the various statistics counters.
1143 * @vsi: the VSI to be updated
1145 * Update the various stats for this VSI and its related entities.
1147 void i40e_update_stats(struct i40e_vsi
*vsi
)
1149 struct i40e_pf
*pf
= vsi
->back
;
1151 if (vsi
== pf
->vsi
[pf
->lan_vsi
])
1152 i40e_update_pf_stats(pf
);
1154 i40e_update_vsi_stats(vsi
);
1156 i40e_update_fcoe_stats(vsi
);
1161 * i40e_find_filter - Search VSI filter list for specific mac/vlan filter
1162 * @vsi: the VSI to be searched
1163 * @macaddr: the MAC address
1165 * @is_vf: make sure its a VF filter, else doesn't matter
1166 * @is_netdev: make sure its a netdev filter, else doesn't matter
1168 * Returns ptr to the filter object or NULL
1170 static struct i40e_mac_filter
*i40e_find_filter(struct i40e_vsi
*vsi
,
1171 u8
*macaddr
, s16 vlan
,
1172 bool is_vf
, bool is_netdev
)
1174 struct i40e_mac_filter
*f
;
1176 if (!vsi
|| !macaddr
)
1179 list_for_each_entry(f
, &vsi
->mac_filter_list
, list
) {
1180 if ((ether_addr_equal(macaddr
, f
->macaddr
)) &&
1181 (vlan
== f
->vlan
) &&
1182 (!is_vf
|| f
->is_vf
) &&
1183 (!is_netdev
|| f
->is_netdev
))
1190 * i40e_find_mac - Find a mac addr in the macvlan filters list
1191 * @vsi: the VSI to be searched
1192 * @macaddr: the MAC address we are searching for
1193 * @is_vf: make sure its a VF filter, else doesn't matter
1194 * @is_netdev: make sure its a netdev filter, else doesn't matter
1196 * Returns the first filter with the provided MAC address or NULL if
1197 * MAC address was not found
1199 struct i40e_mac_filter
*i40e_find_mac(struct i40e_vsi
*vsi
, u8
*macaddr
,
1200 bool is_vf
, bool is_netdev
)
1202 struct i40e_mac_filter
*f
;
1204 if (!vsi
|| !macaddr
)
1207 list_for_each_entry(f
, &vsi
->mac_filter_list
, list
) {
1208 if ((ether_addr_equal(macaddr
, f
->macaddr
)) &&
1209 (!is_vf
|| f
->is_vf
) &&
1210 (!is_netdev
|| f
->is_netdev
))
1217 * i40e_is_vsi_in_vlan - Check if VSI is in vlan mode
1218 * @vsi: the VSI to be searched
1220 * Returns true if VSI is in vlan mode or false otherwise
1222 bool i40e_is_vsi_in_vlan(struct i40e_vsi
*vsi
)
1224 struct i40e_mac_filter
*f
;
1226 /* Only -1 for all the filters denotes not in vlan mode
1227 * so we have to go through all the list in order to make sure
1229 list_for_each_entry(f
, &vsi
->mac_filter_list
, list
) {
1238 * i40e_put_mac_in_vlan - Make macvlan filters from macaddrs and vlans
1239 * @vsi: the VSI to be searched
1240 * @macaddr: the mac address to be filtered
1241 * @is_vf: true if it is a VF
1242 * @is_netdev: true if it is a netdev
1244 * Goes through all the macvlan filters and adds a
1245 * macvlan filter for each unique vlan that already exists
1247 * Returns first filter found on success, else NULL
1249 struct i40e_mac_filter
*i40e_put_mac_in_vlan(struct i40e_vsi
*vsi
, u8
*macaddr
,
1250 bool is_vf
, bool is_netdev
)
1252 struct i40e_mac_filter
*f
;
1254 list_for_each_entry(f
, &vsi
->mac_filter_list
, list
) {
1255 if (!i40e_find_filter(vsi
, macaddr
, f
->vlan
,
1256 is_vf
, is_netdev
)) {
1257 if (!i40e_add_filter(vsi
, macaddr
, f
->vlan
,
1263 return list_first_entry_or_null(&vsi
->mac_filter_list
,
1264 struct i40e_mac_filter
, list
);
1268 * i40e_rm_default_mac_filter - Remove the default MAC filter set by NVM
1269 * @vsi: the PF Main VSI - inappropriate for any other VSI
1270 * @macaddr: the MAC address
1272 * Some older firmware configurations set up a default promiscuous VLAN
1273 * filter that needs to be removed.
1275 static int i40e_rm_default_mac_filter(struct i40e_vsi
*vsi
, u8
*macaddr
)
1277 struct i40e_aqc_remove_macvlan_element_data element
;
1278 struct i40e_pf
*pf
= vsi
->back
;
1281 /* Only appropriate for the PF main VSI */
1282 if (vsi
->type
!= I40E_VSI_MAIN
)
1285 memset(&element
, 0, sizeof(element
));
1286 ether_addr_copy(element
.mac_addr
, macaddr
);
1287 element
.vlan_tag
= 0;
1288 element
.flags
= I40E_AQC_MACVLAN_DEL_PERFECT_MATCH
|
1289 I40E_AQC_MACVLAN_DEL_IGNORE_VLAN
;
1290 aq_ret
= i40e_aq_remove_macvlan(&pf
->hw
, vsi
->seid
, &element
, 1, NULL
);
1298 * i40e_add_filter - Add a mac/vlan filter to the VSI
1299 * @vsi: the VSI to be searched
1300 * @macaddr: the MAC address
1302 * @is_vf: make sure its a VF filter, else doesn't matter
1303 * @is_netdev: make sure its a netdev filter, else doesn't matter
1305 * Returns ptr to the filter object or NULL when no memory available.
1307 struct i40e_mac_filter
*i40e_add_filter(struct i40e_vsi
*vsi
,
1308 u8
*macaddr
, s16 vlan
,
1309 bool is_vf
, bool is_netdev
)
1311 struct i40e_mac_filter
*f
;
1313 if (!vsi
|| !macaddr
)
1316 f
= i40e_find_filter(vsi
, macaddr
, vlan
, is_vf
, is_netdev
);
1318 f
= kzalloc(sizeof(*f
), GFP_ATOMIC
);
1320 goto add_filter_out
;
1322 ether_addr_copy(f
->macaddr
, macaddr
);
1326 INIT_LIST_HEAD(&f
->list
);
1327 list_add(&f
->list
, &vsi
->mac_filter_list
);
1330 /* increment counter and add a new flag if needed */
1336 } else if (is_netdev
) {
1337 if (!f
->is_netdev
) {
1338 f
->is_netdev
= true;
1345 /* changed tells sync_filters_subtask to
1346 * push the filter down to the firmware
1349 vsi
->flags
|= I40E_VSI_FLAG_FILTER_CHANGED
;
1350 vsi
->back
->flags
|= I40E_FLAG_FILTER_SYNC
;
1358 * i40e_del_filter - Remove a mac/vlan filter from the VSI
1359 * @vsi: the VSI to be searched
1360 * @macaddr: the MAC address
1362 * @is_vf: make sure it's a VF filter, else doesn't matter
1363 * @is_netdev: make sure it's a netdev filter, else doesn't matter
1365 void i40e_del_filter(struct i40e_vsi
*vsi
,
1366 u8
*macaddr
, s16 vlan
,
1367 bool is_vf
, bool is_netdev
)
1369 struct i40e_mac_filter
*f
;
1371 if (!vsi
|| !macaddr
)
1374 f
= i40e_find_filter(vsi
, macaddr
, vlan
, is_vf
, is_netdev
);
1375 if (!f
|| f
->counter
== 0)
1383 } else if (is_netdev
) {
1385 f
->is_netdev
= false;
1389 /* make sure we don't remove a filter in use by VF or netdev */
1391 min_f
+= (f
->is_vf
? 1 : 0);
1392 min_f
+= (f
->is_netdev
? 1 : 0);
1394 if (f
->counter
> min_f
)
1398 /* counter == 0 tells sync_filters_subtask to
1399 * remove the filter from the firmware's list
1401 if (f
->counter
== 0) {
1403 vsi
->flags
|= I40E_VSI_FLAG_FILTER_CHANGED
;
1404 vsi
->back
->flags
|= I40E_FLAG_FILTER_SYNC
;
1409 * i40e_set_mac - NDO callback to set mac address
1410 * @netdev: network interface device structure
1411 * @p: pointer to an address structure
1413 * Returns 0 on success, negative on failure
1416 int i40e_set_mac(struct net_device
*netdev
, void *p
)
1418 static int i40e_set_mac(struct net_device
*netdev
, void *p
)
1421 struct i40e_netdev_priv
*np
= netdev_priv(netdev
);
1422 struct i40e_vsi
*vsi
= np
->vsi
;
1423 struct i40e_pf
*pf
= vsi
->back
;
1424 struct i40e_hw
*hw
= &pf
->hw
;
1425 struct sockaddr
*addr
= p
;
1426 struct i40e_mac_filter
*f
;
1428 if (!is_valid_ether_addr(addr
->sa_data
))
1429 return -EADDRNOTAVAIL
;
1431 if (ether_addr_equal(netdev
->dev_addr
, addr
->sa_data
)) {
1432 netdev_info(netdev
, "already using mac address %pM\n",
1437 if (test_bit(__I40E_DOWN
, &vsi
->back
->state
) ||
1438 test_bit(__I40E_RESET_RECOVERY_PENDING
, &vsi
->back
->state
))
1439 return -EADDRNOTAVAIL
;
1441 if (ether_addr_equal(hw
->mac
.addr
, addr
->sa_data
))
1442 netdev_info(netdev
, "returning to hw mac address %pM\n",
1445 netdev_info(netdev
, "set new mac address %pM\n", addr
->sa_data
);
1447 if (vsi
->type
== I40E_VSI_MAIN
) {
1449 ret
= i40e_aq_mac_address_write(&vsi
->back
->hw
,
1450 I40E_AQC_WRITE_TYPE_LAA_WOL
,
1451 addr
->sa_data
, NULL
);
1454 "Addr change for Main VSI failed: %d\n",
1456 return -EADDRNOTAVAIL
;
1460 if (ether_addr_equal(netdev
->dev_addr
, hw
->mac
.addr
)) {
1461 struct i40e_aqc_remove_macvlan_element_data element
;
1463 memset(&element
, 0, sizeof(element
));
1464 ether_addr_copy(element
.mac_addr
, netdev
->dev_addr
);
1465 element
.flags
= I40E_AQC_MACVLAN_DEL_PERFECT_MATCH
;
1466 i40e_aq_remove_macvlan(&pf
->hw
, vsi
->seid
, &element
, 1, NULL
);
1468 i40e_del_filter(vsi
, netdev
->dev_addr
, I40E_VLAN_ANY
,
1472 if (ether_addr_equal(addr
->sa_data
, hw
->mac
.addr
)) {
1473 struct i40e_aqc_add_macvlan_element_data element
;
1475 memset(&element
, 0, sizeof(element
));
1476 ether_addr_copy(element
.mac_addr
, hw
->mac
.addr
);
1477 element
.flags
= cpu_to_le16(I40E_AQC_MACVLAN_ADD_PERFECT_MATCH
);
1478 i40e_aq_add_macvlan(&pf
->hw
, vsi
->seid
, &element
, 1, NULL
);
1480 f
= i40e_add_filter(vsi
, addr
->sa_data
, I40E_VLAN_ANY
,
1486 i40e_sync_vsi_filters(vsi
);
1487 ether_addr_copy(netdev
->dev_addr
, addr
->sa_data
);
1493 * i40e_vsi_setup_queue_map - Setup a VSI queue map based on enabled_tc
1494 * @vsi: the VSI being setup
1495 * @ctxt: VSI context structure
1496 * @enabled_tc: Enabled TCs bitmap
1497 * @is_add: True if called before Add VSI
1499 * Setup VSI queue mapping for enabled traffic classes.
1502 void i40e_vsi_setup_queue_map(struct i40e_vsi
*vsi
,
1503 struct i40e_vsi_context
*ctxt
,
1507 static void i40e_vsi_setup_queue_map(struct i40e_vsi
*vsi
,
1508 struct i40e_vsi_context
*ctxt
,
1513 struct i40e_pf
*pf
= vsi
->back
;
1523 sections
= I40E_AQ_VSI_PROP_QUEUE_MAP_VALID
;
1526 if (enabled_tc
&& (vsi
->back
->flags
& I40E_FLAG_DCB_ENABLED
)) {
1527 /* Find numtc from enabled TC bitmap */
1528 for (i
= 0; i
< I40E_MAX_TRAFFIC_CLASS
; i
++) {
1529 if (enabled_tc
& (1 << i
)) /* TC is enabled */
1533 dev_warn(&pf
->pdev
->dev
, "DCB is enabled but no TC enabled, forcing TC0\n");
1537 /* At least TC0 is enabled in case of non-DCB case */
1541 vsi
->tc_config
.numtc
= numtc
;
1542 vsi
->tc_config
.enabled_tc
= enabled_tc
? enabled_tc
: 1;
1543 /* Number of queues per enabled TC */
1544 /* In MFP case we can have a much lower count of MSIx
1545 * vectors available and so we need to lower the used
1548 qcount
= min_t(int, vsi
->alloc_queue_pairs
, pf
->num_lan_msix
);
1549 num_tc_qps
= qcount
/ numtc
;
1550 num_tc_qps
= min_t(int, num_tc_qps
, I40E_MAX_QUEUES_PER_TC
);
1552 /* Setup queue offset/count for all TCs for given VSI */
1553 for (i
= 0; i
< I40E_MAX_TRAFFIC_CLASS
; i
++) {
1554 /* See if the given TC is enabled for the given VSI */
1555 if (vsi
->tc_config
.enabled_tc
& (1 << i
)) { /* TC is enabled */
1558 switch (vsi
->type
) {
1560 qcount
= min_t(int, pf
->rss_size
, num_tc_qps
);
1564 qcount
= num_tc_qps
;
1568 case I40E_VSI_SRIOV
:
1569 case I40E_VSI_VMDQ2
:
1571 qcount
= num_tc_qps
;
1575 vsi
->tc_config
.tc_info
[i
].qoffset
= offset
;
1576 vsi
->tc_config
.tc_info
[i
].qcount
= qcount
;
1578 /* find the next higher power-of-2 of num queue pairs */
1581 while (num_qps
&& ((1 << pow
) < qcount
)) {
1586 vsi
->tc_config
.tc_info
[i
].netdev_tc
= netdev_tc
++;
1588 (offset
<< I40E_AQ_VSI_TC_QUE_OFFSET_SHIFT
) |
1589 (pow
<< I40E_AQ_VSI_TC_QUE_NUMBER_SHIFT
);
1593 /* TC is not enabled so set the offset to
1594 * default queue and allocate one queue
1597 vsi
->tc_config
.tc_info
[i
].qoffset
= 0;
1598 vsi
->tc_config
.tc_info
[i
].qcount
= 1;
1599 vsi
->tc_config
.tc_info
[i
].netdev_tc
= 0;
1603 ctxt
->info
.tc_mapping
[i
] = cpu_to_le16(qmap
);
1606 /* Set actual Tx/Rx queue pairs */
1607 vsi
->num_queue_pairs
= offset
;
1608 if ((vsi
->type
== I40E_VSI_MAIN
) && (numtc
== 1)) {
1609 if (vsi
->req_queue_pairs
> 0)
1610 vsi
->num_queue_pairs
= vsi
->req_queue_pairs
;
1612 vsi
->num_queue_pairs
= pf
->num_lan_msix
;
1615 /* Scheduler section valid can only be set for ADD VSI */
1617 sections
|= I40E_AQ_VSI_PROP_SCHED_VALID
;
1619 ctxt
->info
.up_enable_bits
= enabled_tc
;
1621 if (vsi
->type
== I40E_VSI_SRIOV
) {
1622 ctxt
->info
.mapping_flags
|=
1623 cpu_to_le16(I40E_AQ_VSI_QUE_MAP_NONCONTIG
);
1624 for (i
= 0; i
< vsi
->num_queue_pairs
; i
++)
1625 ctxt
->info
.queue_mapping
[i
] =
1626 cpu_to_le16(vsi
->base_queue
+ i
);
1628 ctxt
->info
.mapping_flags
|=
1629 cpu_to_le16(I40E_AQ_VSI_QUE_MAP_CONTIG
);
1630 ctxt
->info
.queue_mapping
[0] = cpu_to_le16(vsi
->base_queue
);
1632 ctxt
->info
.valid_sections
|= cpu_to_le16(sections
);
1636 * i40e_set_rx_mode - NDO callback to set the netdev filters
1637 * @netdev: network interface device structure
1640 void i40e_set_rx_mode(struct net_device
*netdev
)
1642 static void i40e_set_rx_mode(struct net_device
*netdev
)
1645 struct i40e_netdev_priv
*np
= netdev_priv(netdev
);
1646 struct i40e_mac_filter
*f
, *ftmp
;
1647 struct i40e_vsi
*vsi
= np
->vsi
;
1648 struct netdev_hw_addr
*uca
;
1649 struct netdev_hw_addr
*mca
;
1650 struct netdev_hw_addr
*ha
;
1652 /* add addr if not already in the filter list */
1653 netdev_for_each_uc_addr(uca
, netdev
) {
1654 if (!i40e_find_mac(vsi
, uca
->addr
, false, true)) {
1655 if (i40e_is_vsi_in_vlan(vsi
))
1656 i40e_put_mac_in_vlan(vsi
, uca
->addr
,
1659 i40e_add_filter(vsi
, uca
->addr
, I40E_VLAN_ANY
,
1664 netdev_for_each_mc_addr(mca
, netdev
) {
1665 if (!i40e_find_mac(vsi
, mca
->addr
, false, true)) {
1666 if (i40e_is_vsi_in_vlan(vsi
))
1667 i40e_put_mac_in_vlan(vsi
, mca
->addr
,
1670 i40e_add_filter(vsi
, mca
->addr
, I40E_VLAN_ANY
,
1675 /* remove filter if not in netdev list */
1676 list_for_each_entry_safe(f
, ftmp
, &vsi
->mac_filter_list
, list
) {
1682 if (is_multicast_ether_addr(f
->macaddr
)) {
1683 netdev_for_each_mc_addr(mca
, netdev
) {
1684 if (ether_addr_equal(mca
->addr
, f
->macaddr
)) {
1690 netdev_for_each_uc_addr(uca
, netdev
) {
1691 if (ether_addr_equal(uca
->addr
, f
->macaddr
)) {
1697 for_each_dev_addr(netdev
, ha
) {
1698 if (ether_addr_equal(ha
->addr
, f
->macaddr
)) {
1706 vsi
, f
->macaddr
, I40E_VLAN_ANY
, false, true);
1709 /* check for other flag changes */
1710 if (vsi
->current_netdev_flags
!= vsi
->netdev
->flags
) {
1711 vsi
->flags
|= I40E_VSI_FLAG_FILTER_CHANGED
;
1712 vsi
->back
->flags
|= I40E_FLAG_FILTER_SYNC
;
1717 * i40e_sync_vsi_filters - Update the VSI filter list to the HW
1718 * @vsi: ptr to the VSI
1720 * Push any outstanding VSI filter changes through the AdminQ.
1722 * Returns 0 or error value
1724 int i40e_sync_vsi_filters(struct i40e_vsi
*vsi
)
1726 struct i40e_mac_filter
*f
, *ftmp
;
1727 bool promisc_forced_on
= false;
1728 bool add_happened
= false;
1729 int filter_list_len
= 0;
1730 u32 changed_flags
= 0;
1731 i40e_status aq_ret
= 0;
1737 /* empty array typed pointers, kcalloc later */
1738 struct i40e_aqc_add_macvlan_element_data
*add_list
;
1739 struct i40e_aqc_remove_macvlan_element_data
*del_list
;
1741 while (test_and_set_bit(__I40E_CONFIG_BUSY
, &vsi
->state
))
1742 usleep_range(1000, 2000);
1746 changed_flags
= vsi
->current_netdev_flags
^ vsi
->netdev
->flags
;
1747 vsi
->current_netdev_flags
= vsi
->netdev
->flags
;
1750 if (vsi
->flags
& I40E_VSI_FLAG_FILTER_CHANGED
) {
1751 vsi
->flags
&= ~I40E_VSI_FLAG_FILTER_CHANGED
;
1753 filter_list_len
= pf
->hw
.aq
.asq_buf_size
/
1754 sizeof(struct i40e_aqc_remove_macvlan_element_data
);
1755 del_list
= kcalloc(filter_list_len
,
1756 sizeof(struct i40e_aqc_remove_macvlan_element_data
),
1761 list_for_each_entry_safe(f
, ftmp
, &vsi
->mac_filter_list
, list
) {
1765 if (f
->counter
!= 0)
1770 /* add to delete list */
1771 ether_addr_copy(del_list
[num_del
].mac_addr
, f
->macaddr
);
1772 del_list
[num_del
].vlan_tag
=
1773 cpu_to_le16((u16
)(f
->vlan
==
1774 I40E_VLAN_ANY
? 0 : f
->vlan
));
1776 cmd_flags
|= I40E_AQC_MACVLAN_DEL_PERFECT_MATCH
;
1777 del_list
[num_del
].flags
= cmd_flags
;
1780 /* unlink from filter list */
1784 /* flush a full buffer */
1785 if (num_del
== filter_list_len
) {
1786 aq_ret
= i40e_aq_remove_macvlan(&pf
->hw
,
1787 vsi
->seid
, del_list
, num_del
,
1790 memset(del_list
, 0, sizeof(*del_list
));
1793 pf
->hw
.aq
.asq_last_status
!=
1795 dev_info(&pf
->pdev
->dev
,
1796 "ignoring delete macvlan error, err %d, aq_err %d while flushing a full buffer\n",
1798 pf
->hw
.aq
.asq_last_status
);
1802 aq_ret
= i40e_aq_remove_macvlan(&pf
->hw
, vsi
->seid
,
1803 del_list
, num_del
, NULL
);
1807 pf
->hw
.aq
.asq_last_status
!= I40E_AQ_RC_ENOENT
)
1808 dev_info(&pf
->pdev
->dev
,
1809 "ignoring delete macvlan error, err %d, aq_err %d\n",
1810 aq_ret
, pf
->hw
.aq
.asq_last_status
);
1816 /* do all the adds now */
1817 filter_list_len
= pf
->hw
.aq
.asq_buf_size
/
1818 sizeof(struct i40e_aqc_add_macvlan_element_data
),
1819 add_list
= kcalloc(filter_list_len
,
1820 sizeof(struct i40e_aqc_add_macvlan_element_data
),
1825 list_for_each_entry_safe(f
, ftmp
, &vsi
->mac_filter_list
, list
) {
1829 if (f
->counter
== 0)
1832 add_happened
= true;
1835 /* add to add array */
1836 ether_addr_copy(add_list
[num_add
].mac_addr
, f
->macaddr
);
1837 add_list
[num_add
].vlan_tag
=
1839 (u16
)(f
->vlan
== I40E_VLAN_ANY
? 0 : f
->vlan
));
1840 add_list
[num_add
].queue_number
= 0;
1842 cmd_flags
|= I40E_AQC_MACVLAN_ADD_PERFECT_MATCH
;
1843 add_list
[num_add
].flags
= cpu_to_le16(cmd_flags
);
1846 /* flush a full buffer */
1847 if (num_add
== filter_list_len
) {
1848 aq_ret
= i40e_aq_add_macvlan(&pf
->hw
, vsi
->seid
,
1855 memset(add_list
, 0, sizeof(*add_list
));
1859 aq_ret
= i40e_aq_add_macvlan(&pf
->hw
, vsi
->seid
,
1860 add_list
, num_add
, NULL
);
1866 if (add_happened
&& aq_ret
&&
1867 pf
->hw
.aq
.asq_last_status
!= I40E_AQ_RC_EINVAL
) {
1868 dev_info(&pf
->pdev
->dev
,
1869 "add filter failed, err %d, aq_err %d\n",
1870 aq_ret
, pf
->hw
.aq
.asq_last_status
);
1871 if ((pf
->hw
.aq
.asq_last_status
== I40E_AQ_RC_ENOSPC
) &&
1872 !test_bit(__I40E_FILTER_OVERFLOW_PROMISC
,
1874 promisc_forced_on
= true;
1875 set_bit(__I40E_FILTER_OVERFLOW_PROMISC
,
1877 dev_info(&pf
->pdev
->dev
, "promiscuous mode forced on\n");
1882 /* check for changes in promiscuous modes */
1883 if (changed_flags
& IFF_ALLMULTI
) {
1884 bool cur_multipromisc
;
1885 cur_multipromisc
= !!(vsi
->current_netdev_flags
& IFF_ALLMULTI
);
1886 aq_ret
= i40e_aq_set_vsi_multicast_promiscuous(&vsi
->back
->hw
,
1891 dev_info(&pf
->pdev
->dev
,
1892 "set multi promisc failed, err %d, aq_err %d\n",
1893 aq_ret
, pf
->hw
.aq
.asq_last_status
);
1895 if ((changed_flags
& IFF_PROMISC
) || promisc_forced_on
) {
1897 cur_promisc
= (!!(vsi
->current_netdev_flags
& IFF_PROMISC
) ||
1898 test_bit(__I40E_FILTER_OVERFLOW_PROMISC
,
1900 aq_ret
= i40e_aq_set_vsi_unicast_promiscuous(&vsi
->back
->hw
,
1904 dev_info(&pf
->pdev
->dev
,
1905 "set uni promisc failed, err %d, aq_err %d\n",
1906 aq_ret
, pf
->hw
.aq
.asq_last_status
);
1907 aq_ret
= i40e_aq_set_vsi_broadcast(&vsi
->back
->hw
,
1911 dev_info(&pf
->pdev
->dev
,
1912 "set brdcast promisc failed, err %d, aq_err %d\n",
1913 aq_ret
, pf
->hw
.aq
.asq_last_status
);
1916 clear_bit(__I40E_CONFIG_BUSY
, &vsi
->state
);
1921 * i40e_sync_filters_subtask - Sync the VSI filter list with HW
1922 * @pf: board private structure
1924 static void i40e_sync_filters_subtask(struct i40e_pf
*pf
)
1928 if (!pf
|| !(pf
->flags
& I40E_FLAG_FILTER_SYNC
))
1930 pf
->flags
&= ~I40E_FLAG_FILTER_SYNC
;
1932 for (v
= 0; v
< pf
->num_alloc_vsi
; v
++) {
1934 (pf
->vsi
[v
]->flags
& I40E_VSI_FLAG_FILTER_CHANGED
))
1935 i40e_sync_vsi_filters(pf
->vsi
[v
]);
1940 * i40e_change_mtu - NDO callback to change the Maximum Transfer Unit
1941 * @netdev: network interface device structure
1942 * @new_mtu: new value for maximum frame size
1944 * Returns 0 on success, negative on failure
1946 static int i40e_change_mtu(struct net_device
*netdev
, int new_mtu
)
1948 struct i40e_netdev_priv
*np
= netdev_priv(netdev
);
1949 int max_frame
= new_mtu
+ ETH_HLEN
+ ETH_FCS_LEN
+ VLAN_HLEN
;
1950 struct i40e_vsi
*vsi
= np
->vsi
;
1952 /* MTU < 68 is an error and causes problems on some kernels */
1953 if ((new_mtu
< 68) || (max_frame
> I40E_MAX_RXBUFFER
))
1956 netdev_info(netdev
, "changing MTU from %d to %d\n",
1957 netdev
->mtu
, new_mtu
);
1958 netdev
->mtu
= new_mtu
;
1959 if (netif_running(netdev
))
1960 i40e_vsi_reinit_locked(vsi
);
1966 * i40e_ioctl - Access the hwtstamp interface
1967 * @netdev: network interface device structure
1968 * @ifr: interface request data
1969 * @cmd: ioctl command
1971 int i40e_ioctl(struct net_device
*netdev
, struct ifreq
*ifr
, int cmd
)
1973 struct i40e_netdev_priv
*np
= netdev_priv(netdev
);
1974 struct i40e_pf
*pf
= np
->vsi
->back
;
1978 return i40e_ptp_get_ts_config(pf
, ifr
);
1980 return i40e_ptp_set_ts_config(pf
, ifr
);
1987 * i40e_vlan_stripping_enable - Turn on vlan stripping for the VSI
1988 * @vsi: the vsi being adjusted
1990 void i40e_vlan_stripping_enable(struct i40e_vsi
*vsi
)
1992 struct i40e_vsi_context ctxt
;
1995 if ((vsi
->info
.valid_sections
&
1996 cpu_to_le16(I40E_AQ_VSI_PROP_VLAN_VALID
)) &&
1997 ((vsi
->info
.port_vlan_flags
& I40E_AQ_VSI_PVLAN_MODE_MASK
) == 0))
1998 return; /* already enabled */
2000 vsi
->info
.valid_sections
= cpu_to_le16(I40E_AQ_VSI_PROP_VLAN_VALID
);
2001 vsi
->info
.port_vlan_flags
= I40E_AQ_VSI_PVLAN_MODE_ALL
|
2002 I40E_AQ_VSI_PVLAN_EMOD_STR_BOTH
;
2004 ctxt
.seid
= vsi
->seid
;
2005 ctxt
.info
= vsi
->info
;
2006 ret
= i40e_aq_update_vsi_params(&vsi
->back
->hw
, &ctxt
, NULL
);
2008 dev_info(&vsi
->back
->pdev
->dev
,
2009 "%s: update vsi failed, aq_err=%d\n",
2010 __func__
, vsi
->back
->hw
.aq
.asq_last_status
);
2015 * i40e_vlan_stripping_disable - Turn off vlan stripping for the VSI
2016 * @vsi: the vsi being adjusted
2018 void i40e_vlan_stripping_disable(struct i40e_vsi
*vsi
)
2020 struct i40e_vsi_context ctxt
;
2023 if ((vsi
->info
.valid_sections
&
2024 cpu_to_le16(I40E_AQ_VSI_PROP_VLAN_VALID
)) &&
2025 ((vsi
->info
.port_vlan_flags
& I40E_AQ_VSI_PVLAN_EMOD_MASK
) ==
2026 I40E_AQ_VSI_PVLAN_EMOD_MASK
))
2027 return; /* already disabled */
2029 vsi
->info
.valid_sections
= cpu_to_le16(I40E_AQ_VSI_PROP_VLAN_VALID
);
2030 vsi
->info
.port_vlan_flags
= I40E_AQ_VSI_PVLAN_MODE_ALL
|
2031 I40E_AQ_VSI_PVLAN_EMOD_NOTHING
;
2033 ctxt
.seid
= vsi
->seid
;
2034 ctxt
.info
= vsi
->info
;
2035 ret
= i40e_aq_update_vsi_params(&vsi
->back
->hw
, &ctxt
, NULL
);
2037 dev_info(&vsi
->back
->pdev
->dev
,
2038 "%s: update vsi failed, aq_err=%d\n",
2039 __func__
, vsi
->back
->hw
.aq
.asq_last_status
);
2044 * i40e_vlan_rx_register - Setup or shutdown vlan offload
2045 * @netdev: network interface to be adjusted
2046 * @features: netdev features to test if VLAN offload is enabled or not
2048 static void i40e_vlan_rx_register(struct net_device
*netdev
, u32 features
)
2050 struct i40e_netdev_priv
*np
= netdev_priv(netdev
);
2051 struct i40e_vsi
*vsi
= np
->vsi
;
2053 if (features
& NETIF_F_HW_VLAN_CTAG_RX
)
2054 i40e_vlan_stripping_enable(vsi
);
2056 i40e_vlan_stripping_disable(vsi
);
2060 * i40e_vsi_add_vlan - Add vsi membership for given vlan
2061 * @vsi: the vsi being configured
2062 * @vid: vlan id to be added (0 = untagged only , -1 = any)
2064 int i40e_vsi_add_vlan(struct i40e_vsi
*vsi
, s16 vid
)
2066 struct i40e_mac_filter
*f
, *add_f
;
2067 bool is_netdev
, is_vf
;
2069 is_vf
= (vsi
->type
== I40E_VSI_SRIOV
);
2070 is_netdev
= !!(vsi
->netdev
);
2073 add_f
= i40e_add_filter(vsi
, vsi
->netdev
->dev_addr
, vid
,
2076 dev_info(&vsi
->back
->pdev
->dev
,
2077 "Could not add vlan filter %d for %pM\n",
2078 vid
, vsi
->netdev
->dev_addr
);
2083 list_for_each_entry(f
, &vsi
->mac_filter_list
, list
) {
2084 add_f
= i40e_add_filter(vsi
, f
->macaddr
, vid
, is_vf
, is_netdev
);
2086 dev_info(&vsi
->back
->pdev
->dev
,
2087 "Could not add vlan filter %d for %pM\n",
2093 /* Now if we add a vlan tag, make sure to check if it is the first
2094 * tag (i.e. a "tag" -1 does exist) and if so replace the -1 "tag"
2095 * with 0, so we now accept untagged and specified tagged traffic
2096 * (and not any taged and untagged)
2099 if (is_netdev
&& i40e_find_filter(vsi
, vsi
->netdev
->dev_addr
,
2101 is_vf
, is_netdev
)) {
2102 i40e_del_filter(vsi
, vsi
->netdev
->dev_addr
,
2103 I40E_VLAN_ANY
, is_vf
, is_netdev
);
2104 add_f
= i40e_add_filter(vsi
, vsi
->netdev
->dev_addr
, 0,
2107 dev_info(&vsi
->back
->pdev
->dev
,
2108 "Could not add filter 0 for %pM\n",
2109 vsi
->netdev
->dev_addr
);
2115 /* Do not assume that I40E_VLAN_ANY should be reset to VLAN 0 */
2116 if (vid
> 0 && !vsi
->info
.pvid
) {
2117 list_for_each_entry(f
, &vsi
->mac_filter_list
, list
) {
2118 if (i40e_find_filter(vsi
, f
->macaddr
, I40E_VLAN_ANY
,
2119 is_vf
, is_netdev
)) {
2120 i40e_del_filter(vsi
, f
->macaddr
, I40E_VLAN_ANY
,
2122 add_f
= i40e_add_filter(vsi
, f
->macaddr
,
2123 0, is_vf
, is_netdev
);
2125 dev_info(&vsi
->back
->pdev
->dev
,
2126 "Could not add filter 0 for %pM\n",
2134 if (test_bit(__I40E_DOWN
, &vsi
->back
->state
) ||
2135 test_bit(__I40E_RESET_RECOVERY_PENDING
, &vsi
->back
->state
))
2138 return i40e_sync_vsi_filters(vsi
);
2142 * i40e_vsi_kill_vlan - Remove vsi membership for given vlan
2143 * @vsi: the vsi being configured
2144 * @vid: vlan id to be removed (0 = untagged only , -1 = any)
2146 * Return: 0 on success or negative otherwise
2148 int i40e_vsi_kill_vlan(struct i40e_vsi
*vsi
, s16 vid
)
2150 struct net_device
*netdev
= vsi
->netdev
;
2151 struct i40e_mac_filter
*f
, *add_f
;
2152 bool is_vf
, is_netdev
;
2153 int filter_count
= 0;
2155 is_vf
= (vsi
->type
== I40E_VSI_SRIOV
);
2156 is_netdev
= !!(netdev
);
2159 i40e_del_filter(vsi
, netdev
->dev_addr
, vid
, is_vf
, is_netdev
);
2161 list_for_each_entry(f
, &vsi
->mac_filter_list
, list
)
2162 i40e_del_filter(vsi
, f
->macaddr
, vid
, is_vf
, is_netdev
);
2164 /* go through all the filters for this VSI and if there is only
2165 * vid == 0 it means there are no other filters, so vid 0 must
2166 * be replaced with -1. This signifies that we should from now
2167 * on accept any traffic (with any tag present, or untagged)
2169 list_for_each_entry(f
, &vsi
->mac_filter_list
, list
) {
2172 ether_addr_equal(netdev
->dev_addr
, f
->macaddr
))
2180 if (!filter_count
&& is_netdev
) {
2181 i40e_del_filter(vsi
, netdev
->dev_addr
, 0, is_vf
, is_netdev
);
2182 f
= i40e_add_filter(vsi
, netdev
->dev_addr
, I40E_VLAN_ANY
,
2185 dev_info(&vsi
->back
->pdev
->dev
,
2186 "Could not add filter %d for %pM\n",
2187 I40E_VLAN_ANY
, netdev
->dev_addr
);
2192 if (!filter_count
) {
2193 list_for_each_entry(f
, &vsi
->mac_filter_list
, list
) {
2194 i40e_del_filter(vsi
, f
->macaddr
, 0, is_vf
, is_netdev
);
2195 add_f
= i40e_add_filter(vsi
, f
->macaddr
, I40E_VLAN_ANY
,
2198 dev_info(&vsi
->back
->pdev
->dev
,
2199 "Could not add filter %d for %pM\n",
2200 I40E_VLAN_ANY
, f
->macaddr
);
2206 if (test_bit(__I40E_DOWN
, &vsi
->back
->state
) ||
2207 test_bit(__I40E_RESET_RECOVERY_PENDING
, &vsi
->back
->state
))
2210 return i40e_sync_vsi_filters(vsi
);
2214 * i40e_vlan_rx_add_vid - Add a vlan id filter to HW offload
2215 * @netdev: network interface to be adjusted
2216 * @vid: vlan id to be added
2218 * net_device_ops implementation for adding vlan ids
2221 int i40e_vlan_rx_add_vid(struct net_device
*netdev
,
2222 __always_unused __be16 proto
, u16 vid
)
2224 static int i40e_vlan_rx_add_vid(struct net_device
*netdev
,
2225 __always_unused __be16 proto
, u16 vid
)
2228 struct i40e_netdev_priv
*np
= netdev_priv(netdev
);
2229 struct i40e_vsi
*vsi
= np
->vsi
;
2235 netdev_info(netdev
, "adding %pM vid=%d\n", netdev
->dev_addr
, vid
);
2237 /* If the network stack called us with vid = 0 then
2238 * it is asking to receive priority tagged packets with
2239 * vlan id 0. Our HW receives them by default when configured
2240 * to receive untagged packets so there is no need to add an
2241 * extra filter for vlan 0 tagged packets.
2244 ret
= i40e_vsi_add_vlan(vsi
, vid
);
2246 if (!ret
&& (vid
< VLAN_N_VID
))
2247 set_bit(vid
, vsi
->active_vlans
);
2253 * i40e_vlan_rx_kill_vid - Remove a vlan id filter from HW offload
2254 * @netdev: network interface to be adjusted
2255 * @vid: vlan id to be removed
2257 * net_device_ops implementation for removing vlan ids
2260 int i40e_vlan_rx_kill_vid(struct net_device
*netdev
,
2261 __always_unused __be16 proto
, u16 vid
)
2263 static int i40e_vlan_rx_kill_vid(struct net_device
*netdev
,
2264 __always_unused __be16 proto
, u16 vid
)
2267 struct i40e_netdev_priv
*np
= netdev_priv(netdev
);
2268 struct i40e_vsi
*vsi
= np
->vsi
;
2270 netdev_info(netdev
, "removing %pM vid=%d\n", netdev
->dev_addr
, vid
);
2272 /* return code is ignored as there is nothing a user
2273 * can do about failure to remove and a log message was
2274 * already printed from the other function
2276 i40e_vsi_kill_vlan(vsi
, vid
);
2278 clear_bit(vid
, vsi
->active_vlans
);
2284 * i40e_restore_vlan - Reinstate vlans when vsi/netdev comes back up
2285 * @vsi: the vsi being brought back up
2287 static void i40e_restore_vlan(struct i40e_vsi
*vsi
)
2294 i40e_vlan_rx_register(vsi
->netdev
, vsi
->netdev
->features
);
2296 for_each_set_bit(vid
, vsi
->active_vlans
, VLAN_N_VID
)
2297 i40e_vlan_rx_add_vid(vsi
->netdev
, htons(ETH_P_8021Q
),
2302 * i40e_vsi_add_pvid - Add pvid for the VSI
2303 * @vsi: the vsi being adjusted
2304 * @vid: the vlan id to set as a PVID
2306 int i40e_vsi_add_pvid(struct i40e_vsi
*vsi
, u16 vid
)
2308 struct i40e_vsi_context ctxt
;
2311 vsi
->info
.valid_sections
= cpu_to_le16(I40E_AQ_VSI_PROP_VLAN_VALID
);
2312 vsi
->info
.pvid
= cpu_to_le16(vid
);
2313 vsi
->info
.port_vlan_flags
= I40E_AQ_VSI_PVLAN_MODE_TAGGED
|
2314 I40E_AQ_VSI_PVLAN_INSERT_PVID
|
2315 I40E_AQ_VSI_PVLAN_EMOD_STR
;
2317 ctxt
.seid
= vsi
->seid
;
2318 ctxt
.info
= vsi
->info
;
2319 aq_ret
= i40e_aq_update_vsi_params(&vsi
->back
->hw
, &ctxt
, NULL
);
2321 dev_info(&vsi
->back
->pdev
->dev
,
2322 "%s: update vsi failed, aq_err=%d\n",
2323 __func__
, vsi
->back
->hw
.aq
.asq_last_status
);
2331 * i40e_vsi_remove_pvid - Remove the pvid from the VSI
2332 * @vsi: the vsi being adjusted
2334 * Just use the vlan_rx_register() service to put it back to normal
2336 void i40e_vsi_remove_pvid(struct i40e_vsi
*vsi
)
2338 i40e_vlan_stripping_disable(vsi
);
2344 * i40e_vsi_setup_tx_resources - Allocate VSI Tx queue resources
2345 * @vsi: ptr to the VSI
2347 * If this function returns with an error, then it's possible one or
2348 * more of the rings is populated (while the rest are not). It is the
2349 * callers duty to clean those orphaned rings.
2351 * Return 0 on success, negative on failure
2353 static int i40e_vsi_setup_tx_resources(struct i40e_vsi
*vsi
)
2357 for (i
= 0; i
< vsi
->num_queue_pairs
&& !err
; i
++)
2358 err
= i40e_setup_tx_descriptors(vsi
->tx_rings
[i
]);
2364 * i40e_vsi_free_tx_resources - Free Tx resources for VSI queues
2365 * @vsi: ptr to the VSI
2367 * Free VSI's transmit software resources
2369 static void i40e_vsi_free_tx_resources(struct i40e_vsi
*vsi
)
2376 for (i
= 0; i
< vsi
->num_queue_pairs
; i
++)
2377 if (vsi
->tx_rings
[i
] && vsi
->tx_rings
[i
]->desc
)
2378 i40e_free_tx_resources(vsi
->tx_rings
[i
]);
2382 * i40e_vsi_setup_rx_resources - Allocate VSI queues Rx resources
2383 * @vsi: ptr to the VSI
2385 * If this function returns with an error, then it's possible one or
2386 * more of the rings is populated (while the rest are not). It is the
2387 * callers duty to clean those orphaned rings.
2389 * Return 0 on success, negative on failure
2391 static int i40e_vsi_setup_rx_resources(struct i40e_vsi
*vsi
)
2395 for (i
= 0; i
< vsi
->num_queue_pairs
&& !err
; i
++)
2396 err
= i40e_setup_rx_descriptors(vsi
->rx_rings
[i
]);
2398 i40e_fcoe_setup_ddp_resources(vsi
);
2404 * i40e_vsi_free_rx_resources - Free Rx Resources for VSI queues
2405 * @vsi: ptr to the VSI
2407 * Free all receive software resources
2409 static void i40e_vsi_free_rx_resources(struct i40e_vsi
*vsi
)
2416 for (i
= 0; i
< vsi
->num_queue_pairs
; i
++)
2417 if (vsi
->rx_rings
[i
] && vsi
->rx_rings
[i
]->desc
)
2418 i40e_free_rx_resources(vsi
->rx_rings
[i
]);
2420 i40e_fcoe_free_ddp_resources(vsi
);
2425 * i40e_config_xps_tx_ring - Configure XPS for a Tx ring
2426 * @ring: The Tx ring to configure
2428 * This enables/disables XPS for a given Tx descriptor ring
2429 * based on the TCs enabled for the VSI that ring belongs to.
2431 static void i40e_config_xps_tx_ring(struct i40e_ring
*ring
)
2433 struct i40e_vsi
*vsi
= ring
->vsi
;
2436 if (!ring
->q_vector
|| !ring
->netdev
)
2439 /* Single TC mode enable XPS */
2440 if (vsi
->tc_config
.numtc
<= 1) {
2441 if (!test_and_set_bit(__I40E_TX_XPS_INIT_DONE
, &ring
->state
))
2442 netif_set_xps_queue(ring
->netdev
,
2443 &ring
->q_vector
->affinity_mask
,
2445 } else if (alloc_cpumask_var(&mask
, GFP_KERNEL
)) {
2446 /* Disable XPS to allow selection based on TC */
2447 bitmap_zero(cpumask_bits(mask
), nr_cpumask_bits
);
2448 netif_set_xps_queue(ring
->netdev
, mask
, ring
->queue_index
);
2449 free_cpumask_var(mask
);
2454 * i40e_configure_tx_ring - Configure a transmit ring context and rest
2455 * @ring: The Tx ring to configure
2457 * Configure the Tx descriptor ring in the HMC context.
2459 static int i40e_configure_tx_ring(struct i40e_ring
*ring
)
2461 struct i40e_vsi
*vsi
= ring
->vsi
;
2462 u16 pf_q
= vsi
->base_queue
+ ring
->queue_index
;
2463 struct i40e_hw
*hw
= &vsi
->back
->hw
;
2464 struct i40e_hmc_obj_txq tx_ctx
;
2465 i40e_status err
= 0;
2468 /* some ATR related tx ring init */
2469 if (vsi
->back
->flags
& I40E_FLAG_FD_ATR_ENABLED
) {
2470 ring
->atr_sample_rate
= vsi
->back
->atr_sample_rate
;
2471 ring
->atr_count
= 0;
2473 ring
->atr_sample_rate
= 0;
2477 i40e_config_xps_tx_ring(ring
);
2479 /* clear the context structure first */
2480 memset(&tx_ctx
, 0, sizeof(tx_ctx
));
2482 tx_ctx
.new_context
= 1;
2483 tx_ctx
.base
= (ring
->dma
/ 128);
2484 tx_ctx
.qlen
= ring
->count
;
2485 tx_ctx
.fd_ena
= !!(vsi
->back
->flags
& (I40E_FLAG_FD_SB_ENABLED
|
2486 I40E_FLAG_FD_ATR_ENABLED
));
2488 tx_ctx
.fc_ena
= (vsi
->type
== I40E_VSI_FCOE
);
2490 tx_ctx
.timesync_ena
= !!(vsi
->back
->flags
& I40E_FLAG_PTP
);
2491 /* FDIR VSI tx ring can still use RS bit and writebacks */
2492 if (vsi
->type
!= I40E_VSI_FDIR
)
2493 tx_ctx
.head_wb_ena
= 1;
2494 tx_ctx
.head_wb_addr
= ring
->dma
+
2495 (ring
->count
* sizeof(struct i40e_tx_desc
));
2497 /* As part of VSI creation/update, FW allocates certain
2498 * Tx arbitration queue sets for each TC enabled for
2499 * the VSI. The FW returns the handles to these queue
2500 * sets as part of the response buffer to Add VSI,
2501 * Update VSI, etc. AQ commands. It is expected that
2502 * these queue set handles be associated with the Tx
2503 * queues by the driver as part of the TX queue context
2504 * initialization. This has to be done regardless of
2505 * DCB as by default everything is mapped to TC0.
2507 tx_ctx
.rdylist
= le16_to_cpu(vsi
->info
.qs_handle
[ring
->dcb_tc
]);
2508 tx_ctx
.rdylist_act
= 0;
2510 /* clear the context in the HMC */
2511 err
= i40e_clear_lan_tx_queue_context(hw
, pf_q
);
2513 dev_info(&vsi
->back
->pdev
->dev
,
2514 "Failed to clear LAN Tx queue context on Tx ring %d (pf_q %d), error: %d\n",
2515 ring
->queue_index
, pf_q
, err
);
2519 /* set the context in the HMC */
2520 err
= i40e_set_lan_tx_queue_context(hw
, pf_q
, &tx_ctx
);
2522 dev_info(&vsi
->back
->pdev
->dev
,
2523 "Failed to set LAN Tx queue context on Tx ring %d (pf_q %d, error: %d\n",
2524 ring
->queue_index
, pf_q
, err
);
2528 /* Now associate this queue with this PCI function */
2529 if (vsi
->type
== I40E_VSI_VMDQ2
) {
2530 qtx_ctl
= I40E_QTX_CTL_VM_QUEUE
;
2531 qtx_ctl
|= ((vsi
->id
) << I40E_QTX_CTL_VFVM_INDX_SHIFT
) &
2532 I40E_QTX_CTL_VFVM_INDX_MASK
;
2534 qtx_ctl
= I40E_QTX_CTL_PF_QUEUE
;
2537 qtx_ctl
|= ((hw
->pf_id
<< I40E_QTX_CTL_PF_INDX_SHIFT
) &
2538 I40E_QTX_CTL_PF_INDX_MASK
);
2539 wr32(hw
, I40E_QTX_CTL(pf_q
), qtx_ctl
);
2542 clear_bit(__I40E_HANG_CHECK_ARMED
, &ring
->state
);
2544 /* cache tail off for easier writes later */
2545 ring
->tail
= hw
->hw_addr
+ I40E_QTX_TAIL(pf_q
);
2551 * i40e_configure_rx_ring - Configure a receive ring context
2552 * @ring: The Rx ring to configure
2554 * Configure the Rx descriptor ring in the HMC context.
2556 static int i40e_configure_rx_ring(struct i40e_ring
*ring
)
2558 struct i40e_vsi
*vsi
= ring
->vsi
;
2559 u32 chain_len
= vsi
->back
->hw
.func_caps
.rx_buf_chain_len
;
2560 u16 pf_q
= vsi
->base_queue
+ ring
->queue_index
;
2561 struct i40e_hw
*hw
= &vsi
->back
->hw
;
2562 struct i40e_hmc_obj_rxq rx_ctx
;
2563 i40e_status err
= 0;
2567 /* clear the context structure first */
2568 memset(&rx_ctx
, 0, sizeof(rx_ctx
));
2570 ring
->rx_buf_len
= vsi
->rx_buf_len
;
2571 ring
->rx_hdr_len
= vsi
->rx_hdr_len
;
2573 rx_ctx
.dbuff
= ring
->rx_buf_len
>> I40E_RXQ_CTX_DBUFF_SHIFT
;
2574 rx_ctx
.hbuff
= ring
->rx_hdr_len
>> I40E_RXQ_CTX_HBUFF_SHIFT
;
2576 rx_ctx
.base
= (ring
->dma
/ 128);
2577 rx_ctx
.qlen
= ring
->count
;
2579 if (vsi
->back
->flags
& I40E_FLAG_16BYTE_RX_DESC_ENABLED
) {
2580 set_ring_16byte_desc_enabled(ring
);
2586 rx_ctx
.dtype
= vsi
->dtype
;
2588 set_ring_ps_enabled(ring
);
2589 rx_ctx
.hsplit_0
= I40E_RX_SPLIT_L2
|
2591 I40E_RX_SPLIT_TCP_UDP
|
2594 rx_ctx
.hsplit_0
= 0;
2597 rx_ctx
.rxmax
= min_t(u16
, vsi
->max_frame
,
2598 (chain_len
* ring
->rx_buf_len
));
2599 if (hw
->revision_id
== 0)
2600 rx_ctx
.lrxqthresh
= 0;
2602 rx_ctx
.lrxqthresh
= 2;
2603 rx_ctx
.crcstrip
= 1;
2607 rx_ctx
.fc_ena
= (vsi
->type
== I40E_VSI_FCOE
);
2609 /* set the prefena field to 1 because the manual says to */
2612 /* clear the context in the HMC */
2613 err
= i40e_clear_lan_rx_queue_context(hw
, pf_q
);
2615 dev_info(&vsi
->back
->pdev
->dev
,
2616 "Failed to clear LAN Rx queue context on Rx ring %d (pf_q %d), error: %d\n",
2617 ring
->queue_index
, pf_q
, err
);
2621 /* set the context in the HMC */
2622 err
= i40e_set_lan_rx_queue_context(hw
, pf_q
, &rx_ctx
);
2624 dev_info(&vsi
->back
->pdev
->dev
,
2625 "Failed to set LAN Rx queue context on Rx ring %d (pf_q %d), error: %d\n",
2626 ring
->queue_index
, pf_q
, err
);
2630 /* cache tail for quicker writes, and clear the reg before use */
2631 ring
->tail
= hw
->hw_addr
+ I40E_QRX_TAIL(pf_q
);
2632 writel(0, ring
->tail
);
2634 if (ring_is_ps_enabled(ring
)) {
2635 i40e_alloc_rx_headers(ring
);
2636 i40e_alloc_rx_buffers_ps(ring
, I40E_DESC_UNUSED(ring
));
2638 i40e_alloc_rx_buffers_1buf(ring
, I40E_DESC_UNUSED(ring
));
2645 * i40e_vsi_configure_tx - Configure the VSI for Tx
2646 * @vsi: VSI structure describing this set of rings and resources
2648 * Configure the Tx VSI for operation.
2650 static int i40e_vsi_configure_tx(struct i40e_vsi
*vsi
)
2655 for (i
= 0; (i
< vsi
->num_queue_pairs
) && !err
; i
++)
2656 err
= i40e_configure_tx_ring(vsi
->tx_rings
[i
]);
2662 * i40e_vsi_configure_rx - Configure the VSI for Rx
2663 * @vsi: the VSI being configured
2665 * Configure the Rx VSI for operation.
2667 static int i40e_vsi_configure_rx(struct i40e_vsi
*vsi
)
2672 if (vsi
->netdev
&& (vsi
->netdev
->mtu
> ETH_DATA_LEN
))
2673 vsi
->max_frame
= vsi
->netdev
->mtu
+ ETH_HLEN
2674 + ETH_FCS_LEN
+ VLAN_HLEN
;
2676 vsi
->max_frame
= I40E_RXBUFFER_2048
;
2678 /* figure out correct receive buffer length */
2679 switch (vsi
->back
->flags
& (I40E_FLAG_RX_1BUF_ENABLED
|
2680 I40E_FLAG_RX_PS_ENABLED
)) {
2681 case I40E_FLAG_RX_1BUF_ENABLED
:
2682 vsi
->rx_hdr_len
= 0;
2683 vsi
->rx_buf_len
= vsi
->max_frame
;
2684 vsi
->dtype
= I40E_RX_DTYPE_NO_SPLIT
;
2686 case I40E_FLAG_RX_PS_ENABLED
:
2687 vsi
->rx_hdr_len
= I40E_RX_HDR_SIZE
;
2688 vsi
->rx_buf_len
= I40E_RXBUFFER_2048
;
2689 vsi
->dtype
= I40E_RX_DTYPE_HEADER_SPLIT
;
2692 vsi
->rx_hdr_len
= I40E_RX_HDR_SIZE
;
2693 vsi
->rx_buf_len
= I40E_RXBUFFER_2048
;
2694 vsi
->dtype
= I40E_RX_DTYPE_SPLIT_ALWAYS
;
2699 /* setup rx buffer for FCoE */
2700 if ((vsi
->type
== I40E_VSI_FCOE
) &&
2701 (vsi
->back
->flags
& I40E_FLAG_FCOE_ENABLED
)) {
2702 vsi
->rx_hdr_len
= 0;
2703 vsi
->rx_buf_len
= I40E_RXBUFFER_3072
;
2704 vsi
->max_frame
= I40E_RXBUFFER_3072
;
2705 vsi
->dtype
= I40E_RX_DTYPE_NO_SPLIT
;
2708 #endif /* I40E_FCOE */
2709 /* round up for the chip's needs */
2710 vsi
->rx_hdr_len
= ALIGN(vsi
->rx_hdr_len
,
2711 (1 << I40E_RXQ_CTX_HBUFF_SHIFT
));
2712 vsi
->rx_buf_len
= ALIGN(vsi
->rx_buf_len
,
2713 (1 << I40E_RXQ_CTX_DBUFF_SHIFT
));
2715 /* set up individual rings */
2716 for (i
= 0; i
< vsi
->num_queue_pairs
&& !err
; i
++)
2717 err
= i40e_configure_rx_ring(vsi
->rx_rings
[i
]);
2723 * i40e_vsi_config_dcb_rings - Update rings to reflect DCB TC
2724 * @vsi: ptr to the VSI
2726 static void i40e_vsi_config_dcb_rings(struct i40e_vsi
*vsi
)
2728 struct i40e_ring
*tx_ring
, *rx_ring
;
2729 u16 qoffset
, qcount
;
2732 if (!(vsi
->back
->flags
& I40E_FLAG_DCB_ENABLED
)) {
2733 /* Reset the TC information */
2734 for (i
= 0; i
< vsi
->num_queue_pairs
; i
++) {
2735 rx_ring
= vsi
->rx_rings
[i
];
2736 tx_ring
= vsi
->tx_rings
[i
];
2737 rx_ring
->dcb_tc
= 0;
2738 tx_ring
->dcb_tc
= 0;
2742 for (n
= 0; n
< I40E_MAX_TRAFFIC_CLASS
; n
++) {
2743 if (!(vsi
->tc_config
.enabled_tc
& (1 << n
)))
2746 qoffset
= vsi
->tc_config
.tc_info
[n
].qoffset
;
2747 qcount
= vsi
->tc_config
.tc_info
[n
].qcount
;
2748 for (i
= qoffset
; i
< (qoffset
+ qcount
); i
++) {
2749 rx_ring
= vsi
->rx_rings
[i
];
2750 tx_ring
= vsi
->tx_rings
[i
];
2751 rx_ring
->dcb_tc
= n
;
2752 tx_ring
->dcb_tc
= n
;
2758 * i40e_set_vsi_rx_mode - Call set_rx_mode on a VSI
2759 * @vsi: ptr to the VSI
2761 static void i40e_set_vsi_rx_mode(struct i40e_vsi
*vsi
)
2764 i40e_set_rx_mode(vsi
->netdev
);
2768 * i40e_fdir_filter_restore - Restore the Sideband Flow Director filters
2769 * @vsi: Pointer to the targeted VSI
2771 * This function replays the hlist on the hw where all the SB Flow Director
2772 * filters were saved.
2774 static void i40e_fdir_filter_restore(struct i40e_vsi
*vsi
)
2776 struct i40e_fdir_filter
*filter
;
2777 struct i40e_pf
*pf
= vsi
->back
;
2778 struct hlist_node
*node
;
2780 if (!(pf
->flags
& I40E_FLAG_FD_SB_ENABLED
))
2783 hlist_for_each_entry_safe(filter
, node
,
2784 &pf
->fdir_filter_list
, fdir_node
) {
2785 i40e_add_del_fdir(vsi
, filter
, true);
2790 * i40e_vsi_configure - Set up the VSI for action
2791 * @vsi: the VSI being configured
2793 static int i40e_vsi_configure(struct i40e_vsi
*vsi
)
2797 i40e_set_vsi_rx_mode(vsi
);
2798 i40e_restore_vlan(vsi
);
2799 i40e_vsi_config_dcb_rings(vsi
);
2800 err
= i40e_vsi_configure_tx(vsi
);
2802 err
= i40e_vsi_configure_rx(vsi
);
2808 * i40e_vsi_configure_msix - MSIX mode Interrupt Config in the HW
2809 * @vsi: the VSI being configured
2811 static void i40e_vsi_configure_msix(struct i40e_vsi
*vsi
)
2813 struct i40e_pf
*pf
= vsi
->back
;
2814 struct i40e_q_vector
*q_vector
;
2815 struct i40e_hw
*hw
= &pf
->hw
;
2821 /* The interrupt indexing is offset by 1 in the PFINT_ITRn
2822 * and PFINT_LNKLSTn registers, e.g.:
2823 * PFINT_ITRn[0..n-1] gets msix-1..msix-n (qpair interrupts)
2825 qp
= vsi
->base_queue
;
2826 vector
= vsi
->base_vector
;
2827 for (i
= 0; i
< vsi
->num_q_vectors
; i
++, vector
++) {
2828 q_vector
= vsi
->q_vectors
[i
];
2829 q_vector
->rx
.itr
= ITR_TO_REG(vsi
->rx_itr_setting
);
2830 q_vector
->rx
.latency_range
= I40E_LOW_LATENCY
;
2831 wr32(hw
, I40E_PFINT_ITRN(I40E_RX_ITR
, vector
- 1),
2833 q_vector
->tx
.itr
= ITR_TO_REG(vsi
->tx_itr_setting
);
2834 q_vector
->tx
.latency_range
= I40E_LOW_LATENCY
;
2835 wr32(hw
, I40E_PFINT_ITRN(I40E_TX_ITR
, vector
- 1),
2838 /* Linked list for the queuepairs assigned to this vector */
2839 wr32(hw
, I40E_PFINT_LNKLSTN(vector
- 1), qp
);
2840 for (q
= 0; q
< q_vector
->num_ringpairs
; q
++) {
2841 val
= I40E_QINT_RQCTL_CAUSE_ENA_MASK
|
2842 (I40E_RX_ITR
<< I40E_QINT_RQCTL_ITR_INDX_SHIFT
) |
2843 (vector
<< I40E_QINT_RQCTL_MSIX_INDX_SHIFT
) |
2844 (qp
<< I40E_QINT_RQCTL_NEXTQ_INDX_SHIFT
)|
2846 << I40E_QINT_RQCTL_NEXTQ_TYPE_SHIFT
);
2848 wr32(hw
, I40E_QINT_RQCTL(qp
), val
);
2850 val
= I40E_QINT_TQCTL_CAUSE_ENA_MASK
|
2851 (I40E_TX_ITR
<< I40E_QINT_TQCTL_ITR_INDX_SHIFT
) |
2852 (vector
<< I40E_QINT_TQCTL_MSIX_INDX_SHIFT
) |
2853 ((qp
+1) << I40E_QINT_TQCTL_NEXTQ_INDX_SHIFT
)|
2855 << I40E_QINT_TQCTL_NEXTQ_TYPE_SHIFT
);
2857 /* Terminate the linked list */
2858 if (q
== (q_vector
->num_ringpairs
- 1))
2859 val
|= (I40E_QUEUE_END_OF_LIST
2860 << I40E_QINT_TQCTL_NEXTQ_INDX_SHIFT
);
2862 wr32(hw
, I40E_QINT_TQCTL(qp
), val
);
2871 * i40e_enable_misc_int_causes - enable the non-queue interrupts
2872 * @hw: ptr to the hardware info
2874 static void i40e_enable_misc_int_causes(struct i40e_pf
*pf
)
2876 struct i40e_hw
*hw
= &pf
->hw
;
2879 /* clear things first */
2880 wr32(hw
, I40E_PFINT_ICR0_ENA
, 0); /* disable all */
2881 rd32(hw
, I40E_PFINT_ICR0
); /* read to clear */
2883 val
= I40E_PFINT_ICR0_ENA_ECC_ERR_MASK
|
2884 I40E_PFINT_ICR0_ENA_MAL_DETECT_MASK
|
2885 I40E_PFINT_ICR0_ENA_GRST_MASK
|
2886 I40E_PFINT_ICR0_ENA_PCI_EXCEPTION_MASK
|
2887 I40E_PFINT_ICR0_ENA_GPIO_MASK
|
2888 I40E_PFINT_ICR0_ENA_HMC_ERR_MASK
|
2889 I40E_PFINT_ICR0_ENA_VFLR_MASK
|
2890 I40E_PFINT_ICR0_ENA_ADMINQ_MASK
;
2892 if (pf
->flags
& I40E_FLAG_PTP
)
2893 val
|= I40E_PFINT_ICR0_ENA_TIMESYNC_MASK
;
2895 wr32(hw
, I40E_PFINT_ICR0_ENA
, val
);
2897 /* SW_ITR_IDX = 0, but don't change INTENA */
2898 wr32(hw
, I40E_PFINT_DYN_CTL0
, I40E_PFINT_DYN_CTL0_SW_ITR_INDX_MASK
|
2899 I40E_PFINT_DYN_CTL0_INTENA_MSK_MASK
);
2901 /* OTHER_ITR_IDX = 0 */
2902 wr32(hw
, I40E_PFINT_STAT_CTL0
, 0);
2906 * i40e_configure_msi_and_legacy - Legacy mode interrupt config in the HW
2907 * @vsi: the VSI being configured
2909 static void i40e_configure_msi_and_legacy(struct i40e_vsi
*vsi
)
2911 struct i40e_q_vector
*q_vector
= vsi
->q_vectors
[0];
2912 struct i40e_pf
*pf
= vsi
->back
;
2913 struct i40e_hw
*hw
= &pf
->hw
;
2916 /* set the ITR configuration */
2917 q_vector
->rx
.itr
= ITR_TO_REG(vsi
->rx_itr_setting
);
2918 q_vector
->rx
.latency_range
= I40E_LOW_LATENCY
;
2919 wr32(hw
, I40E_PFINT_ITR0(I40E_RX_ITR
), q_vector
->rx
.itr
);
2920 q_vector
->tx
.itr
= ITR_TO_REG(vsi
->tx_itr_setting
);
2921 q_vector
->tx
.latency_range
= I40E_LOW_LATENCY
;
2922 wr32(hw
, I40E_PFINT_ITR0(I40E_TX_ITR
), q_vector
->tx
.itr
);
2924 i40e_enable_misc_int_causes(pf
);
2926 /* FIRSTQ_INDX = 0, FIRSTQ_TYPE = 0 (rx) */
2927 wr32(hw
, I40E_PFINT_LNKLST0
, 0);
2929 /* Associate the queue pair to the vector and enable the queue int */
2930 val
= I40E_QINT_RQCTL_CAUSE_ENA_MASK
|
2931 (I40E_RX_ITR
<< I40E_QINT_RQCTL_ITR_INDX_SHIFT
) |
2932 (I40E_QUEUE_TYPE_TX
<< I40E_QINT_TQCTL_NEXTQ_TYPE_SHIFT
);
2934 wr32(hw
, I40E_QINT_RQCTL(0), val
);
2936 val
= I40E_QINT_TQCTL_CAUSE_ENA_MASK
|
2937 (I40E_TX_ITR
<< I40E_QINT_TQCTL_ITR_INDX_SHIFT
) |
2938 (I40E_QUEUE_END_OF_LIST
<< I40E_QINT_TQCTL_NEXTQ_INDX_SHIFT
);
2940 wr32(hw
, I40E_QINT_TQCTL(0), val
);
2945 * i40e_irq_dynamic_disable_icr0 - Disable default interrupt generation for icr0
2946 * @pf: board private structure
2948 void i40e_irq_dynamic_disable_icr0(struct i40e_pf
*pf
)
2950 struct i40e_hw
*hw
= &pf
->hw
;
2952 wr32(hw
, I40E_PFINT_DYN_CTL0
,
2953 I40E_ITR_NONE
<< I40E_PFINT_DYN_CTLN_ITR_INDX_SHIFT
);
2958 * i40e_irq_dynamic_enable_icr0 - Enable default interrupt generation for icr0
2959 * @pf: board private structure
2961 void i40e_irq_dynamic_enable_icr0(struct i40e_pf
*pf
)
2963 struct i40e_hw
*hw
= &pf
->hw
;
2966 val
= I40E_PFINT_DYN_CTL0_INTENA_MASK
|
2967 I40E_PFINT_DYN_CTL0_CLEARPBA_MASK
|
2968 (I40E_ITR_NONE
<< I40E_PFINT_DYN_CTL0_ITR_INDX_SHIFT
);
2970 wr32(hw
, I40E_PFINT_DYN_CTL0
, val
);
2975 * i40e_irq_dynamic_enable - Enable default interrupt generation settings
2976 * @vsi: pointer to a vsi
2977 * @vector: enable a particular Hw Interrupt vector
2979 void i40e_irq_dynamic_enable(struct i40e_vsi
*vsi
, int vector
)
2981 struct i40e_pf
*pf
= vsi
->back
;
2982 struct i40e_hw
*hw
= &pf
->hw
;
2985 val
= I40E_PFINT_DYN_CTLN_INTENA_MASK
|
2986 I40E_PFINT_DYN_CTLN_CLEARPBA_MASK
|
2987 (I40E_ITR_NONE
<< I40E_PFINT_DYN_CTLN_ITR_INDX_SHIFT
);
2988 wr32(hw
, I40E_PFINT_DYN_CTLN(vector
- 1), val
);
2989 /* skip the flush */
2993 * i40e_irq_dynamic_disable - Disable default interrupt generation settings
2994 * @vsi: pointer to a vsi
2995 * @vector: disable a particular Hw Interrupt vector
2997 void i40e_irq_dynamic_disable(struct i40e_vsi
*vsi
, int vector
)
2999 struct i40e_pf
*pf
= vsi
->back
;
3000 struct i40e_hw
*hw
= &pf
->hw
;
3003 val
= I40E_ITR_NONE
<< I40E_PFINT_DYN_CTLN_ITR_INDX_SHIFT
;
3004 wr32(hw
, I40E_PFINT_DYN_CTLN(vector
- 1), val
);
3009 * i40e_msix_clean_rings - MSIX mode Interrupt Handler
3010 * @irq: interrupt number
3011 * @data: pointer to a q_vector
3013 static irqreturn_t
i40e_msix_clean_rings(int irq
, void *data
)
3015 struct i40e_q_vector
*q_vector
= data
;
3017 if (!q_vector
->tx
.ring
&& !q_vector
->rx
.ring
)
3020 napi_schedule(&q_vector
->napi
);
3026 * i40e_vsi_request_irq_msix - Initialize MSI-X interrupts
3027 * @vsi: the VSI being configured
3028 * @basename: name for the vector
3030 * Allocates MSI-X vectors and requests interrupts from the kernel.
3032 static int i40e_vsi_request_irq_msix(struct i40e_vsi
*vsi
, char *basename
)
3034 int q_vectors
= vsi
->num_q_vectors
;
3035 struct i40e_pf
*pf
= vsi
->back
;
3036 int base
= vsi
->base_vector
;
3041 for (vector
= 0; vector
< q_vectors
; vector
++) {
3042 struct i40e_q_vector
*q_vector
= vsi
->q_vectors
[vector
];
3044 if (q_vector
->tx
.ring
&& q_vector
->rx
.ring
) {
3045 snprintf(q_vector
->name
, sizeof(q_vector
->name
) - 1,
3046 "%s-%s-%d", basename
, "TxRx", rx_int_idx
++);
3048 } else if (q_vector
->rx
.ring
) {
3049 snprintf(q_vector
->name
, sizeof(q_vector
->name
) - 1,
3050 "%s-%s-%d", basename
, "rx", rx_int_idx
++);
3051 } else if (q_vector
->tx
.ring
) {
3052 snprintf(q_vector
->name
, sizeof(q_vector
->name
) - 1,
3053 "%s-%s-%d", basename
, "tx", tx_int_idx
++);
3055 /* skip this unused q_vector */
3058 err
= request_irq(pf
->msix_entries
[base
+ vector
].vector
,
3064 dev_info(&pf
->pdev
->dev
,
3065 "%s: request_irq failed, error: %d\n",
3067 goto free_queue_irqs
;
3069 /* assign the mask for this irq */
3070 irq_set_affinity_hint(pf
->msix_entries
[base
+ vector
].vector
,
3071 &q_vector
->affinity_mask
);
3074 vsi
->irqs_ready
= true;
3080 irq_set_affinity_hint(pf
->msix_entries
[base
+ vector
].vector
,
3082 free_irq(pf
->msix_entries
[base
+ vector
].vector
,
3083 &(vsi
->q_vectors
[vector
]));
3089 * i40e_vsi_disable_irq - Mask off queue interrupt generation on the VSI
3090 * @vsi: the VSI being un-configured
3092 static void i40e_vsi_disable_irq(struct i40e_vsi
*vsi
)
3094 struct i40e_pf
*pf
= vsi
->back
;
3095 struct i40e_hw
*hw
= &pf
->hw
;
3096 int base
= vsi
->base_vector
;
3099 for (i
= 0; i
< vsi
->num_queue_pairs
; i
++) {
3100 wr32(hw
, I40E_QINT_TQCTL(vsi
->tx_rings
[i
]->reg_idx
), 0);
3101 wr32(hw
, I40E_QINT_RQCTL(vsi
->rx_rings
[i
]->reg_idx
), 0);
3104 if (pf
->flags
& I40E_FLAG_MSIX_ENABLED
) {
3105 for (i
= vsi
->base_vector
;
3106 i
< (vsi
->num_q_vectors
+ vsi
->base_vector
); i
++)
3107 wr32(hw
, I40E_PFINT_DYN_CTLN(i
- 1), 0);
3110 for (i
= 0; i
< vsi
->num_q_vectors
; i
++)
3111 synchronize_irq(pf
->msix_entries
[i
+ base
].vector
);
3113 /* Legacy and MSI mode - this stops all interrupt handling */
3114 wr32(hw
, I40E_PFINT_ICR0_ENA
, 0);
3115 wr32(hw
, I40E_PFINT_DYN_CTL0
, 0);
3117 synchronize_irq(pf
->pdev
->irq
);
3122 * i40e_vsi_enable_irq - Enable IRQ for the given VSI
3123 * @vsi: the VSI being configured
3125 static int i40e_vsi_enable_irq(struct i40e_vsi
*vsi
)
3127 struct i40e_pf
*pf
= vsi
->back
;
3130 if (pf
->flags
& I40E_FLAG_MSIX_ENABLED
) {
3131 for (i
= vsi
->base_vector
;
3132 i
< (vsi
->num_q_vectors
+ vsi
->base_vector
); i
++)
3133 i40e_irq_dynamic_enable(vsi
, i
);
3135 i40e_irq_dynamic_enable_icr0(pf
);
3138 i40e_flush(&pf
->hw
);
3143 * i40e_stop_misc_vector - Stop the vector that handles non-queue events
3144 * @pf: board private structure
3146 static void i40e_stop_misc_vector(struct i40e_pf
*pf
)
3149 wr32(&pf
->hw
, I40E_PFINT_ICR0_ENA
, 0);
3150 i40e_flush(&pf
->hw
);
3154 * i40e_intr - MSI/Legacy and non-queue interrupt handler
3155 * @irq: interrupt number
3156 * @data: pointer to a q_vector
3158 * This is the handler used for all MSI/Legacy interrupts, and deals
3159 * with both queue and non-queue interrupts. This is also used in
3160 * MSIX mode to handle the non-queue interrupts.
3162 static irqreturn_t
i40e_intr(int irq
, void *data
)
3164 struct i40e_pf
*pf
= (struct i40e_pf
*)data
;
3165 struct i40e_hw
*hw
= &pf
->hw
;
3166 irqreturn_t ret
= IRQ_NONE
;
3167 u32 icr0
, icr0_remaining
;
3170 icr0
= rd32(hw
, I40E_PFINT_ICR0
);
3171 ena_mask
= rd32(hw
, I40E_PFINT_ICR0_ENA
);
3173 /* if sharing a legacy IRQ, we might get called w/o an intr pending */
3174 if ((icr0
& I40E_PFINT_ICR0_INTEVENT_MASK
) == 0)
3177 /* if interrupt but no bits showing, must be SWINT */
3178 if (((icr0
& ~I40E_PFINT_ICR0_INTEVENT_MASK
) == 0) ||
3179 (icr0
& I40E_PFINT_ICR0_SWINT_MASK
))
3182 /* only q0 is used in MSI/Legacy mode, and none are used in MSIX */
3183 if (icr0
& I40E_PFINT_ICR0_QUEUE_0_MASK
) {
3185 /* temporarily disable queue cause for NAPI processing */
3186 u32 qval
= rd32(hw
, I40E_QINT_RQCTL(0));
3187 qval
&= ~I40E_QINT_RQCTL_CAUSE_ENA_MASK
;
3188 wr32(hw
, I40E_QINT_RQCTL(0), qval
);
3190 qval
= rd32(hw
, I40E_QINT_TQCTL(0));
3191 qval
&= ~I40E_QINT_TQCTL_CAUSE_ENA_MASK
;
3192 wr32(hw
, I40E_QINT_TQCTL(0), qval
);
3194 if (!test_bit(__I40E_DOWN
, &pf
->state
))
3195 napi_schedule(&pf
->vsi
[pf
->lan_vsi
]->q_vectors
[0]->napi
);
3198 if (icr0
& I40E_PFINT_ICR0_ADMINQ_MASK
) {
3199 ena_mask
&= ~I40E_PFINT_ICR0_ENA_ADMINQ_MASK
;
3200 set_bit(__I40E_ADMINQ_EVENT_PENDING
, &pf
->state
);
3203 if (icr0
& I40E_PFINT_ICR0_MAL_DETECT_MASK
) {
3204 ena_mask
&= ~I40E_PFINT_ICR0_ENA_MAL_DETECT_MASK
;
3205 set_bit(__I40E_MDD_EVENT_PENDING
, &pf
->state
);
3208 if (icr0
& I40E_PFINT_ICR0_VFLR_MASK
) {
3209 ena_mask
&= ~I40E_PFINT_ICR0_ENA_VFLR_MASK
;
3210 set_bit(__I40E_VFLR_EVENT_PENDING
, &pf
->state
);
3213 if (icr0
& I40E_PFINT_ICR0_GRST_MASK
) {
3214 if (!test_bit(__I40E_RESET_RECOVERY_PENDING
, &pf
->state
))
3215 set_bit(__I40E_RESET_INTR_RECEIVED
, &pf
->state
);
3216 ena_mask
&= ~I40E_PFINT_ICR0_ENA_GRST_MASK
;
3217 val
= rd32(hw
, I40E_GLGEN_RSTAT
);
3218 val
= (val
& I40E_GLGEN_RSTAT_RESET_TYPE_MASK
)
3219 >> I40E_GLGEN_RSTAT_RESET_TYPE_SHIFT
;
3220 if (val
== I40E_RESET_CORER
) {
3222 } else if (val
== I40E_RESET_GLOBR
) {
3224 } else if (val
== I40E_RESET_EMPR
) {
3226 set_bit(__I40E_EMP_RESET_INTR_RECEIVED
, &pf
->state
);
3230 if (icr0
& I40E_PFINT_ICR0_HMC_ERR_MASK
) {
3231 icr0
&= ~I40E_PFINT_ICR0_HMC_ERR_MASK
;
3232 dev_info(&pf
->pdev
->dev
, "HMC error interrupt\n");
3233 dev_info(&pf
->pdev
->dev
, "HMC error info 0x%x, HMC error data 0x%x\n",
3234 rd32(hw
, I40E_PFHMC_ERRORINFO
),
3235 rd32(hw
, I40E_PFHMC_ERRORDATA
));
3238 if (icr0
& I40E_PFINT_ICR0_TIMESYNC_MASK
) {
3239 u32 prttsyn_stat
= rd32(hw
, I40E_PRTTSYN_STAT_0
);
3241 if (prttsyn_stat
& I40E_PRTTSYN_STAT_0_TXTIME_MASK
) {
3242 icr0
&= ~I40E_PFINT_ICR0_ENA_TIMESYNC_MASK
;
3243 i40e_ptp_tx_hwtstamp(pf
);
3247 /* If a critical error is pending we have no choice but to reset the
3249 * Report and mask out any remaining unexpected interrupts.
3251 icr0_remaining
= icr0
& ena_mask
;
3252 if (icr0_remaining
) {
3253 dev_info(&pf
->pdev
->dev
, "unhandled interrupt icr0=0x%08x\n",
3255 if ((icr0_remaining
& I40E_PFINT_ICR0_PE_CRITERR_MASK
) ||
3256 (icr0_remaining
& I40E_PFINT_ICR0_PCI_EXCEPTION_MASK
) ||
3257 (icr0_remaining
& I40E_PFINT_ICR0_ECC_ERR_MASK
)) {
3258 dev_info(&pf
->pdev
->dev
, "device will be reset\n");
3259 set_bit(__I40E_PF_RESET_REQUESTED
, &pf
->state
);
3260 i40e_service_event_schedule(pf
);
3262 ena_mask
&= ~icr0_remaining
;
3267 /* re-enable interrupt causes */
3268 wr32(hw
, I40E_PFINT_ICR0_ENA
, ena_mask
);
3269 if (!test_bit(__I40E_DOWN
, &pf
->state
)) {
3270 i40e_service_event_schedule(pf
);
3271 i40e_irq_dynamic_enable_icr0(pf
);
3278 * i40e_clean_fdir_tx_irq - Reclaim resources after transmit completes
3279 * @tx_ring: tx ring to clean
3280 * @budget: how many cleans we're allowed
3282 * Returns true if there's any budget left (e.g. the clean is finished)
3284 static bool i40e_clean_fdir_tx_irq(struct i40e_ring
*tx_ring
, int budget
)
3286 struct i40e_vsi
*vsi
= tx_ring
->vsi
;
3287 u16 i
= tx_ring
->next_to_clean
;
3288 struct i40e_tx_buffer
*tx_buf
;
3289 struct i40e_tx_desc
*tx_desc
;
3291 tx_buf
= &tx_ring
->tx_bi
[i
];
3292 tx_desc
= I40E_TX_DESC(tx_ring
, i
);
3293 i
-= tx_ring
->count
;
3296 struct i40e_tx_desc
*eop_desc
= tx_buf
->next_to_watch
;
3298 /* if next_to_watch is not set then there is no work pending */
3302 /* prevent any other reads prior to eop_desc */
3303 read_barrier_depends();
3305 /* if the descriptor isn't done, no work yet to do */
3306 if (!(eop_desc
->cmd_type_offset_bsz
&
3307 cpu_to_le64(I40E_TX_DESC_DTYPE_DESC_DONE
)))
3310 /* clear next_to_watch to prevent false hangs */
3311 tx_buf
->next_to_watch
= NULL
;
3313 tx_desc
->buffer_addr
= 0;
3314 tx_desc
->cmd_type_offset_bsz
= 0;
3315 /* move past filter desc */
3320 i
-= tx_ring
->count
;
3321 tx_buf
= tx_ring
->tx_bi
;
3322 tx_desc
= I40E_TX_DESC(tx_ring
, 0);
3324 /* unmap skb header data */
3325 dma_unmap_single(tx_ring
->dev
,
3326 dma_unmap_addr(tx_buf
, dma
),
3327 dma_unmap_len(tx_buf
, len
),
3329 if (tx_buf
->tx_flags
& I40E_TX_FLAGS_FD_SB
)
3330 kfree(tx_buf
->raw_buf
);
3332 tx_buf
->raw_buf
= NULL
;
3333 tx_buf
->tx_flags
= 0;
3334 tx_buf
->next_to_watch
= NULL
;
3335 dma_unmap_len_set(tx_buf
, len
, 0);
3336 tx_desc
->buffer_addr
= 0;
3337 tx_desc
->cmd_type_offset_bsz
= 0;
3339 /* move us past the eop_desc for start of next FD desc */
3344 i
-= tx_ring
->count
;
3345 tx_buf
= tx_ring
->tx_bi
;
3346 tx_desc
= I40E_TX_DESC(tx_ring
, 0);
3349 /* update budget accounting */
3351 } while (likely(budget
));
3353 i
+= tx_ring
->count
;
3354 tx_ring
->next_to_clean
= i
;
3356 if (vsi
->back
->flags
& I40E_FLAG_MSIX_ENABLED
) {
3357 i40e_irq_dynamic_enable(vsi
,
3358 tx_ring
->q_vector
->v_idx
+ vsi
->base_vector
);
3364 * i40e_fdir_clean_ring - Interrupt Handler for FDIR SB ring
3365 * @irq: interrupt number
3366 * @data: pointer to a q_vector
3368 static irqreturn_t
i40e_fdir_clean_ring(int irq
, void *data
)
3370 struct i40e_q_vector
*q_vector
= data
;
3371 struct i40e_vsi
*vsi
;
3373 if (!q_vector
->tx
.ring
)
3376 vsi
= q_vector
->tx
.ring
->vsi
;
3377 i40e_clean_fdir_tx_irq(q_vector
->tx
.ring
, vsi
->work_limit
);
3383 * i40e_map_vector_to_qp - Assigns the queue pair to the vector
3384 * @vsi: the VSI being configured
3385 * @v_idx: vector index
3386 * @qp_idx: queue pair index
3388 static void map_vector_to_qp(struct i40e_vsi
*vsi
, int v_idx
, int qp_idx
)
3390 struct i40e_q_vector
*q_vector
= vsi
->q_vectors
[v_idx
];
3391 struct i40e_ring
*tx_ring
= vsi
->tx_rings
[qp_idx
];
3392 struct i40e_ring
*rx_ring
= vsi
->rx_rings
[qp_idx
];
3394 tx_ring
->q_vector
= q_vector
;
3395 tx_ring
->next
= q_vector
->tx
.ring
;
3396 q_vector
->tx
.ring
= tx_ring
;
3397 q_vector
->tx
.count
++;
3399 rx_ring
->q_vector
= q_vector
;
3400 rx_ring
->next
= q_vector
->rx
.ring
;
3401 q_vector
->rx
.ring
= rx_ring
;
3402 q_vector
->rx
.count
++;
3406 * i40e_vsi_map_rings_to_vectors - Maps descriptor rings to vectors
3407 * @vsi: the VSI being configured
3409 * This function maps descriptor rings to the queue-specific vectors
3410 * we were allotted through the MSI-X enabling code. Ideally, we'd have
3411 * one vector per queue pair, but on a constrained vector budget, we
3412 * group the queue pairs as "efficiently" as possible.
3414 static void i40e_vsi_map_rings_to_vectors(struct i40e_vsi
*vsi
)
3416 int qp_remaining
= vsi
->num_queue_pairs
;
3417 int q_vectors
= vsi
->num_q_vectors
;
3422 /* If we don't have enough vectors for a 1-to-1 mapping, we'll have to
3423 * group them so there are multiple queues per vector.
3424 * It is also important to go through all the vectors available to be
3425 * sure that if we don't use all the vectors, that the remaining vectors
3426 * are cleared. This is especially important when decreasing the
3427 * number of queues in use.
3429 for (; v_start
< q_vectors
; v_start
++) {
3430 struct i40e_q_vector
*q_vector
= vsi
->q_vectors
[v_start
];
3432 num_ringpairs
= DIV_ROUND_UP(qp_remaining
, q_vectors
- v_start
);
3434 q_vector
->num_ringpairs
= num_ringpairs
;
3436 q_vector
->rx
.count
= 0;
3437 q_vector
->tx
.count
= 0;
3438 q_vector
->rx
.ring
= NULL
;
3439 q_vector
->tx
.ring
= NULL
;
3441 while (num_ringpairs
--) {
3442 map_vector_to_qp(vsi
, v_start
, qp_idx
);
3450 * i40e_vsi_request_irq - Request IRQ from the OS
3451 * @vsi: the VSI being configured
3452 * @basename: name for the vector
3454 static int i40e_vsi_request_irq(struct i40e_vsi
*vsi
, char *basename
)
3456 struct i40e_pf
*pf
= vsi
->back
;
3459 if (pf
->flags
& I40E_FLAG_MSIX_ENABLED
)
3460 err
= i40e_vsi_request_irq_msix(vsi
, basename
);
3461 else if (pf
->flags
& I40E_FLAG_MSI_ENABLED
)
3462 err
= request_irq(pf
->pdev
->irq
, i40e_intr
, 0,
3465 err
= request_irq(pf
->pdev
->irq
, i40e_intr
, IRQF_SHARED
,
3469 dev_info(&pf
->pdev
->dev
, "request_irq failed, Error %d\n", err
);
3474 #ifdef CONFIG_NET_POLL_CONTROLLER
3476 * i40e_netpoll - A Polling 'interrupt'handler
3477 * @netdev: network interface device structure
3479 * This is used by netconsole to send skbs without having to re-enable
3480 * interrupts. It's not called while the normal interrupt routine is executing.
3483 void i40e_netpoll(struct net_device
*netdev
)
3485 static void i40e_netpoll(struct net_device
*netdev
)
3488 struct i40e_netdev_priv
*np
= netdev_priv(netdev
);
3489 struct i40e_vsi
*vsi
= np
->vsi
;
3490 struct i40e_pf
*pf
= vsi
->back
;
3493 /* if interface is down do nothing */
3494 if (test_bit(__I40E_DOWN
, &vsi
->state
))
3497 pf
->flags
|= I40E_FLAG_IN_NETPOLL
;
3498 if (pf
->flags
& I40E_FLAG_MSIX_ENABLED
) {
3499 for (i
= 0; i
< vsi
->num_q_vectors
; i
++)
3500 i40e_msix_clean_rings(0, vsi
->q_vectors
[i
]);
3502 i40e_intr(pf
->pdev
->irq
, netdev
);
3504 pf
->flags
&= ~I40E_FLAG_IN_NETPOLL
;
3509 * i40e_pf_txq_wait - Wait for a PF's Tx queue to be enabled or disabled
3510 * @pf: the PF being configured
3511 * @pf_q: the PF queue
3512 * @enable: enable or disable state of the queue
3514 * This routine will wait for the given Tx queue of the PF to reach the
3515 * enabled or disabled state.
3516 * Returns -ETIMEDOUT in case of failing to reach the requested state after
3517 * multiple retries; else will return 0 in case of success.
3519 static int i40e_pf_txq_wait(struct i40e_pf
*pf
, int pf_q
, bool enable
)
3524 for (i
= 0; i
< I40E_QUEUE_WAIT_RETRY_LIMIT
; i
++) {
3525 tx_reg
= rd32(&pf
->hw
, I40E_QTX_ENA(pf_q
));
3526 if (enable
== !!(tx_reg
& I40E_QTX_ENA_QENA_STAT_MASK
))
3529 usleep_range(10, 20);
3531 if (i
>= I40E_QUEUE_WAIT_RETRY_LIMIT
)
3538 * i40e_vsi_control_tx - Start or stop a VSI's rings
3539 * @vsi: the VSI being configured
3540 * @enable: start or stop the rings
3542 static int i40e_vsi_control_tx(struct i40e_vsi
*vsi
, bool enable
)
3544 struct i40e_pf
*pf
= vsi
->back
;
3545 struct i40e_hw
*hw
= &pf
->hw
;
3546 int i
, j
, pf_q
, ret
= 0;
3549 pf_q
= vsi
->base_queue
;
3550 for (i
= 0; i
< vsi
->num_queue_pairs
; i
++, pf_q
++) {
3552 /* warn the TX unit of coming changes */
3553 i40e_pre_tx_queue_cfg(&pf
->hw
, pf_q
, enable
);
3555 usleep_range(10, 20);
3557 for (j
= 0; j
< 50; j
++) {
3558 tx_reg
= rd32(hw
, I40E_QTX_ENA(pf_q
));
3559 if (((tx_reg
>> I40E_QTX_ENA_QENA_REQ_SHIFT
) & 1) ==
3560 ((tx_reg
>> I40E_QTX_ENA_QENA_STAT_SHIFT
) & 1))
3562 usleep_range(1000, 2000);
3564 /* Skip if the queue is already in the requested state */
3565 if (enable
== !!(tx_reg
& I40E_QTX_ENA_QENA_STAT_MASK
))
3568 /* turn on/off the queue */
3570 wr32(hw
, I40E_QTX_HEAD(pf_q
), 0);
3571 tx_reg
|= I40E_QTX_ENA_QENA_REQ_MASK
;
3573 tx_reg
&= ~I40E_QTX_ENA_QENA_REQ_MASK
;
3576 wr32(hw
, I40E_QTX_ENA(pf_q
), tx_reg
);
3577 /* No waiting for the Tx queue to disable */
3578 if (!enable
&& test_bit(__I40E_PORT_TX_SUSPENDED
, &pf
->state
))
3581 /* wait for the change to finish */
3582 ret
= i40e_pf_txq_wait(pf
, pf_q
, enable
);
3584 dev_info(&pf
->pdev
->dev
,
3585 "%s: VSI seid %d Tx ring %d %sable timeout\n",
3586 __func__
, vsi
->seid
, pf_q
,
3587 (enable
? "en" : "dis"));
3592 if (hw
->revision_id
== 0)
3598 * i40e_pf_rxq_wait - Wait for a PF's Rx queue to be enabled or disabled
3599 * @pf: the PF being configured
3600 * @pf_q: the PF queue
3601 * @enable: enable or disable state of the queue
3603 * This routine will wait for the given Rx queue of the PF to reach the
3604 * enabled or disabled state.
3605 * Returns -ETIMEDOUT in case of failing to reach the requested state after
3606 * multiple retries; else will return 0 in case of success.
3608 static int i40e_pf_rxq_wait(struct i40e_pf
*pf
, int pf_q
, bool enable
)
3613 for (i
= 0; i
< I40E_QUEUE_WAIT_RETRY_LIMIT
; i
++) {
3614 rx_reg
= rd32(&pf
->hw
, I40E_QRX_ENA(pf_q
));
3615 if (enable
== !!(rx_reg
& I40E_QRX_ENA_QENA_STAT_MASK
))
3618 usleep_range(10, 20);
3620 if (i
>= I40E_QUEUE_WAIT_RETRY_LIMIT
)
3627 * i40e_vsi_control_rx - Start or stop a VSI's rings
3628 * @vsi: the VSI being configured
3629 * @enable: start or stop the rings
3631 static int i40e_vsi_control_rx(struct i40e_vsi
*vsi
, bool enable
)
3633 struct i40e_pf
*pf
= vsi
->back
;
3634 struct i40e_hw
*hw
= &pf
->hw
;
3635 int i
, j
, pf_q
, ret
= 0;
3638 pf_q
= vsi
->base_queue
;
3639 for (i
= 0; i
< vsi
->num_queue_pairs
; i
++, pf_q
++) {
3640 for (j
= 0; j
< 50; j
++) {
3641 rx_reg
= rd32(hw
, I40E_QRX_ENA(pf_q
));
3642 if (((rx_reg
>> I40E_QRX_ENA_QENA_REQ_SHIFT
) & 1) ==
3643 ((rx_reg
>> I40E_QRX_ENA_QENA_STAT_SHIFT
) & 1))
3645 usleep_range(1000, 2000);
3648 /* Skip if the queue is already in the requested state */
3649 if (enable
== !!(rx_reg
& I40E_QRX_ENA_QENA_STAT_MASK
))
3652 /* turn on/off the queue */
3654 rx_reg
|= I40E_QRX_ENA_QENA_REQ_MASK
;
3656 rx_reg
&= ~I40E_QRX_ENA_QENA_REQ_MASK
;
3657 wr32(hw
, I40E_QRX_ENA(pf_q
), rx_reg
);
3659 /* wait for the change to finish */
3660 ret
= i40e_pf_rxq_wait(pf
, pf_q
, enable
);
3662 dev_info(&pf
->pdev
->dev
,
3663 "%s: VSI seid %d Rx ring %d %sable timeout\n",
3664 __func__
, vsi
->seid
, pf_q
,
3665 (enable
? "en" : "dis"));
3674 * i40e_vsi_control_rings - Start or stop a VSI's rings
3675 * @vsi: the VSI being configured
3676 * @enable: start or stop the rings
3678 int i40e_vsi_control_rings(struct i40e_vsi
*vsi
, bool request
)
3682 /* do rx first for enable and last for disable */
3684 ret
= i40e_vsi_control_rx(vsi
, request
);
3687 ret
= i40e_vsi_control_tx(vsi
, request
);
3689 /* Ignore return value, we need to shutdown whatever we can */
3690 i40e_vsi_control_tx(vsi
, request
);
3691 i40e_vsi_control_rx(vsi
, request
);
3698 * i40e_vsi_free_irq - Free the irq association with the OS
3699 * @vsi: the VSI being configured
3701 static void i40e_vsi_free_irq(struct i40e_vsi
*vsi
)
3703 struct i40e_pf
*pf
= vsi
->back
;
3704 struct i40e_hw
*hw
= &pf
->hw
;
3705 int base
= vsi
->base_vector
;
3709 if (pf
->flags
& I40E_FLAG_MSIX_ENABLED
) {
3710 if (!vsi
->q_vectors
)
3713 if (!vsi
->irqs_ready
)
3716 vsi
->irqs_ready
= false;
3717 for (i
= 0; i
< vsi
->num_q_vectors
; i
++) {
3718 u16 vector
= i
+ base
;
3720 /* free only the irqs that were actually requested */
3721 if (!vsi
->q_vectors
[i
] ||
3722 !vsi
->q_vectors
[i
]->num_ringpairs
)
3725 /* clear the affinity_mask in the IRQ descriptor */
3726 irq_set_affinity_hint(pf
->msix_entries
[vector
].vector
,
3728 free_irq(pf
->msix_entries
[vector
].vector
,
3731 /* Tear down the interrupt queue link list
3733 * We know that they come in pairs and always
3734 * the Rx first, then the Tx. To clear the
3735 * link list, stick the EOL value into the
3736 * next_q field of the registers.
3738 val
= rd32(hw
, I40E_PFINT_LNKLSTN(vector
- 1));
3739 qp
= (val
& I40E_PFINT_LNKLSTN_FIRSTQ_INDX_MASK
)
3740 >> I40E_PFINT_LNKLSTN_FIRSTQ_INDX_SHIFT
;
3741 val
|= I40E_QUEUE_END_OF_LIST
3742 << I40E_PFINT_LNKLSTN_FIRSTQ_INDX_SHIFT
;
3743 wr32(hw
, I40E_PFINT_LNKLSTN(vector
- 1), val
);
3745 while (qp
!= I40E_QUEUE_END_OF_LIST
) {
3748 val
= rd32(hw
, I40E_QINT_RQCTL(qp
));
3750 val
&= ~(I40E_QINT_RQCTL_MSIX_INDX_MASK
|
3751 I40E_QINT_RQCTL_MSIX0_INDX_MASK
|
3752 I40E_QINT_RQCTL_CAUSE_ENA_MASK
|
3753 I40E_QINT_RQCTL_INTEVENT_MASK
);
3755 val
|= (I40E_QINT_RQCTL_ITR_INDX_MASK
|
3756 I40E_QINT_RQCTL_NEXTQ_INDX_MASK
);
3758 wr32(hw
, I40E_QINT_RQCTL(qp
), val
);
3760 val
= rd32(hw
, I40E_QINT_TQCTL(qp
));
3762 next
= (val
& I40E_QINT_TQCTL_NEXTQ_INDX_MASK
)
3763 >> I40E_QINT_TQCTL_NEXTQ_INDX_SHIFT
;
3765 val
&= ~(I40E_QINT_TQCTL_MSIX_INDX_MASK
|
3766 I40E_QINT_TQCTL_MSIX0_INDX_MASK
|
3767 I40E_QINT_TQCTL_CAUSE_ENA_MASK
|
3768 I40E_QINT_TQCTL_INTEVENT_MASK
);
3770 val
|= (I40E_QINT_TQCTL_ITR_INDX_MASK
|
3771 I40E_QINT_TQCTL_NEXTQ_INDX_MASK
);
3773 wr32(hw
, I40E_QINT_TQCTL(qp
), val
);
3778 free_irq(pf
->pdev
->irq
, pf
);
3780 val
= rd32(hw
, I40E_PFINT_LNKLST0
);
3781 qp
= (val
& I40E_PFINT_LNKLSTN_FIRSTQ_INDX_MASK
)
3782 >> I40E_PFINT_LNKLSTN_FIRSTQ_INDX_SHIFT
;
3783 val
|= I40E_QUEUE_END_OF_LIST
3784 << I40E_PFINT_LNKLST0_FIRSTQ_INDX_SHIFT
;
3785 wr32(hw
, I40E_PFINT_LNKLST0
, val
);
3787 val
= rd32(hw
, I40E_QINT_RQCTL(qp
));
3788 val
&= ~(I40E_QINT_RQCTL_MSIX_INDX_MASK
|
3789 I40E_QINT_RQCTL_MSIX0_INDX_MASK
|
3790 I40E_QINT_RQCTL_CAUSE_ENA_MASK
|
3791 I40E_QINT_RQCTL_INTEVENT_MASK
);
3793 val
|= (I40E_QINT_RQCTL_ITR_INDX_MASK
|
3794 I40E_QINT_RQCTL_NEXTQ_INDX_MASK
);
3796 wr32(hw
, I40E_QINT_RQCTL(qp
), val
);
3798 val
= rd32(hw
, I40E_QINT_TQCTL(qp
));
3800 val
&= ~(I40E_QINT_TQCTL_MSIX_INDX_MASK
|
3801 I40E_QINT_TQCTL_MSIX0_INDX_MASK
|
3802 I40E_QINT_TQCTL_CAUSE_ENA_MASK
|
3803 I40E_QINT_TQCTL_INTEVENT_MASK
);
3805 val
|= (I40E_QINT_TQCTL_ITR_INDX_MASK
|
3806 I40E_QINT_TQCTL_NEXTQ_INDX_MASK
);
3808 wr32(hw
, I40E_QINT_TQCTL(qp
), val
);
3813 * i40e_free_q_vector - Free memory allocated for specific interrupt vector
3814 * @vsi: the VSI being configured
3815 * @v_idx: Index of vector to be freed
3817 * This function frees the memory allocated to the q_vector. In addition if
3818 * NAPI is enabled it will delete any references to the NAPI struct prior
3819 * to freeing the q_vector.
3821 static void i40e_free_q_vector(struct i40e_vsi
*vsi
, int v_idx
)
3823 struct i40e_q_vector
*q_vector
= vsi
->q_vectors
[v_idx
];
3824 struct i40e_ring
*ring
;
3829 /* disassociate q_vector from rings */
3830 i40e_for_each_ring(ring
, q_vector
->tx
)
3831 ring
->q_vector
= NULL
;
3833 i40e_for_each_ring(ring
, q_vector
->rx
)
3834 ring
->q_vector
= NULL
;
3836 /* only VSI w/ an associated netdev is set up w/ NAPI */
3838 netif_napi_del(&q_vector
->napi
);
3840 vsi
->q_vectors
[v_idx
] = NULL
;
3842 kfree_rcu(q_vector
, rcu
);
3846 * i40e_vsi_free_q_vectors - Free memory allocated for interrupt vectors
3847 * @vsi: the VSI being un-configured
3849 * This frees the memory allocated to the q_vectors and
3850 * deletes references to the NAPI struct.
3852 static void i40e_vsi_free_q_vectors(struct i40e_vsi
*vsi
)
3856 for (v_idx
= 0; v_idx
< vsi
->num_q_vectors
; v_idx
++)
3857 i40e_free_q_vector(vsi
, v_idx
);
3861 * i40e_reset_interrupt_capability - Disable interrupt setup in OS
3862 * @pf: board private structure
3864 static void i40e_reset_interrupt_capability(struct i40e_pf
*pf
)
3866 /* If we're in Legacy mode, the interrupt was cleaned in vsi_close */
3867 if (pf
->flags
& I40E_FLAG_MSIX_ENABLED
) {
3868 pci_disable_msix(pf
->pdev
);
3869 kfree(pf
->msix_entries
);
3870 pf
->msix_entries
= NULL
;
3871 kfree(pf
->irq_pile
);
3872 pf
->irq_pile
= NULL
;
3873 } else if (pf
->flags
& I40E_FLAG_MSI_ENABLED
) {
3874 pci_disable_msi(pf
->pdev
);
3876 pf
->flags
&= ~(I40E_FLAG_MSIX_ENABLED
| I40E_FLAG_MSI_ENABLED
);
3880 * i40e_clear_interrupt_scheme - Clear the current interrupt scheme settings
3881 * @pf: board private structure
3883 * We go through and clear interrupt specific resources and reset the structure
3884 * to pre-load conditions
3886 static void i40e_clear_interrupt_scheme(struct i40e_pf
*pf
)
3890 i40e_stop_misc_vector(pf
);
3891 if (pf
->flags
& I40E_FLAG_MSIX_ENABLED
) {
3892 synchronize_irq(pf
->msix_entries
[0].vector
);
3893 free_irq(pf
->msix_entries
[0].vector
, pf
);
3896 i40e_put_lump(pf
->irq_pile
, 0, I40E_PILE_VALID_BIT
-1);
3897 for (i
= 0; i
< pf
->num_alloc_vsi
; i
++)
3899 i40e_vsi_free_q_vectors(pf
->vsi
[i
]);
3900 i40e_reset_interrupt_capability(pf
);
3904 * i40e_napi_enable_all - Enable NAPI for all q_vectors in the VSI
3905 * @vsi: the VSI being configured
3907 static void i40e_napi_enable_all(struct i40e_vsi
*vsi
)
3914 for (q_idx
= 0; q_idx
< vsi
->num_q_vectors
; q_idx
++)
3915 napi_enable(&vsi
->q_vectors
[q_idx
]->napi
);
3919 * i40e_napi_disable_all - Disable NAPI for all q_vectors in the VSI
3920 * @vsi: the VSI being configured
3922 static void i40e_napi_disable_all(struct i40e_vsi
*vsi
)
3929 for (q_idx
= 0; q_idx
< vsi
->num_q_vectors
; q_idx
++)
3930 napi_disable(&vsi
->q_vectors
[q_idx
]->napi
);
3934 * i40e_vsi_close - Shut down a VSI
3935 * @vsi: the vsi to be quelled
3937 static void i40e_vsi_close(struct i40e_vsi
*vsi
)
3939 if (!test_and_set_bit(__I40E_DOWN
, &vsi
->state
))
3941 i40e_vsi_free_irq(vsi
);
3942 i40e_vsi_free_tx_resources(vsi
);
3943 i40e_vsi_free_rx_resources(vsi
);
3947 * i40e_quiesce_vsi - Pause a given VSI
3948 * @vsi: the VSI being paused
3950 static void i40e_quiesce_vsi(struct i40e_vsi
*vsi
)
3952 if (test_bit(__I40E_DOWN
, &vsi
->state
))
3955 /* No need to disable FCoE VSI when Tx suspended */
3956 if ((test_bit(__I40E_PORT_TX_SUSPENDED
, &vsi
->back
->state
)) &&
3957 vsi
->type
== I40E_VSI_FCOE
) {
3958 dev_dbg(&vsi
->back
->pdev
->dev
,
3959 "%s: VSI seid %d skipping FCoE VSI disable\n",
3960 __func__
, vsi
->seid
);
3964 set_bit(__I40E_NEEDS_RESTART
, &vsi
->state
);
3965 if (vsi
->netdev
&& netif_running(vsi
->netdev
)) {
3966 vsi
->netdev
->netdev_ops
->ndo_stop(vsi
->netdev
);
3968 i40e_vsi_close(vsi
);
3973 * i40e_unquiesce_vsi - Resume a given VSI
3974 * @vsi: the VSI being resumed
3976 static void i40e_unquiesce_vsi(struct i40e_vsi
*vsi
)
3978 if (!test_bit(__I40E_NEEDS_RESTART
, &vsi
->state
))
3981 clear_bit(__I40E_NEEDS_RESTART
, &vsi
->state
);
3982 if (vsi
->netdev
&& netif_running(vsi
->netdev
))
3983 vsi
->netdev
->netdev_ops
->ndo_open(vsi
->netdev
);
3985 i40e_vsi_open(vsi
); /* this clears the DOWN bit */
3989 * i40e_pf_quiesce_all_vsi - Pause all VSIs on a PF
3992 static void i40e_pf_quiesce_all_vsi(struct i40e_pf
*pf
)
3996 for (v
= 0; v
< pf
->num_alloc_vsi
; v
++) {
3998 i40e_quiesce_vsi(pf
->vsi
[v
]);
4003 * i40e_pf_unquiesce_all_vsi - Resume all VSIs on a PF
4006 static void i40e_pf_unquiesce_all_vsi(struct i40e_pf
*pf
)
4010 for (v
= 0; v
< pf
->num_alloc_vsi
; v
++) {
4012 i40e_unquiesce_vsi(pf
->vsi
[v
]);
4016 #ifdef CONFIG_I40E_DCB
4018 * i40e_vsi_wait_txq_disabled - Wait for VSI's queues to be disabled
4019 * @vsi: the VSI being configured
4021 * This function waits for the given VSI's Tx queues to be disabled.
4023 static int i40e_vsi_wait_txq_disabled(struct i40e_vsi
*vsi
)
4025 struct i40e_pf
*pf
= vsi
->back
;
4028 pf_q
= vsi
->base_queue
;
4029 for (i
= 0; i
< vsi
->num_queue_pairs
; i
++, pf_q
++) {
4030 /* Check and wait for the disable status of the queue */
4031 ret
= i40e_pf_txq_wait(pf
, pf_q
, false);
4033 dev_info(&pf
->pdev
->dev
,
4034 "%s: VSI seid %d Tx ring %d disable timeout\n",
4035 __func__
, vsi
->seid
, pf_q
);
4044 * i40e_pf_wait_txq_disabled - Wait for all queues of PF VSIs to be disabled
4047 * This function waits for the Tx queues to be in disabled state for all the
4048 * VSIs that are managed by this PF.
4050 static int i40e_pf_wait_txq_disabled(struct i40e_pf
*pf
)
4054 for (v
= 0; v
< pf
->hw
.func_caps
.num_vsis
; v
++) {
4055 /* No need to wait for FCoE VSI queues */
4056 if (pf
->vsi
[v
] && pf
->vsi
[v
]->type
!= I40E_VSI_FCOE
) {
4057 ret
= i40e_vsi_wait_txq_disabled(pf
->vsi
[v
]);
4068 * i40e_get_iscsi_tc_map - Return TC map for iSCSI APP
4069 * @pf: pointer to PF
4071 * Get TC map for ISCSI PF type that will include iSCSI TC
4074 static u8
i40e_get_iscsi_tc_map(struct i40e_pf
*pf
)
4076 struct i40e_dcb_app_priority_table app
;
4077 struct i40e_hw
*hw
= &pf
->hw
;
4078 u8 enabled_tc
= 1; /* TC0 is always enabled */
4080 /* Get the iSCSI APP TLV */
4081 struct i40e_dcbx_config
*dcbcfg
= &hw
->local_dcbx_config
;
4083 for (i
= 0; i
< dcbcfg
->numapps
; i
++) {
4084 app
= dcbcfg
->app
[i
];
4085 if (app
.selector
== I40E_APP_SEL_TCPIP
&&
4086 app
.protocolid
== I40E_APP_PROTOID_ISCSI
) {
4087 tc
= dcbcfg
->etscfg
.prioritytable
[app
.priority
];
4088 enabled_tc
|= (1 << tc
);
4097 * i40e_dcb_get_num_tc - Get the number of TCs from DCBx config
4098 * @dcbcfg: the corresponding DCBx configuration structure
4100 * Return the number of TCs from given DCBx configuration
4102 static u8
i40e_dcb_get_num_tc(struct i40e_dcbx_config
*dcbcfg
)
4107 /* Scan the ETS Config Priority Table to find
4108 * traffic class enabled for a given priority
4109 * and use the traffic class index to get the
4110 * number of traffic classes enabled
4112 for (i
= 0; i
< I40E_MAX_USER_PRIORITY
; i
++) {
4113 if (dcbcfg
->etscfg
.prioritytable
[i
] > num_tc
)
4114 num_tc
= dcbcfg
->etscfg
.prioritytable
[i
];
4117 /* Traffic class index starts from zero so
4118 * increment to return the actual count
4124 * i40e_dcb_get_enabled_tc - Get enabled traffic classes
4125 * @dcbcfg: the corresponding DCBx configuration structure
4127 * Query the current DCB configuration and return the number of
4128 * traffic classes enabled from the given DCBX config
4130 static u8
i40e_dcb_get_enabled_tc(struct i40e_dcbx_config
*dcbcfg
)
4132 u8 num_tc
= i40e_dcb_get_num_tc(dcbcfg
);
4136 for (i
= 0; i
< num_tc
; i
++)
4137 enabled_tc
|= 1 << i
;
4143 * i40e_pf_get_num_tc - Get enabled traffic classes for PF
4144 * @pf: PF being queried
4146 * Return number of traffic classes enabled for the given PF
4148 static u8
i40e_pf_get_num_tc(struct i40e_pf
*pf
)
4150 struct i40e_hw
*hw
= &pf
->hw
;
4153 struct i40e_dcbx_config
*dcbcfg
= &hw
->local_dcbx_config
;
4155 /* If DCB is not enabled then always in single TC */
4156 if (!(pf
->flags
& I40E_FLAG_DCB_ENABLED
))
4159 /* SFP mode will be enabled for all TCs on port */
4160 if (!(pf
->flags
& I40E_FLAG_MFP_ENABLED
))
4161 return i40e_dcb_get_num_tc(dcbcfg
);
4163 /* MFP mode return count of enabled TCs for this PF */
4164 if (pf
->hw
.func_caps
.iscsi
)
4165 enabled_tc
= i40e_get_iscsi_tc_map(pf
);
4167 return 1; /* Only TC0 */
4169 /* At least have TC0 */
4170 enabled_tc
= (enabled_tc
? enabled_tc
: 0x1);
4171 for (i
= 0; i
< I40E_MAX_TRAFFIC_CLASS
; i
++) {
4172 if (enabled_tc
& (1 << i
))
4179 * i40e_pf_get_default_tc - Get bitmap for first enabled TC
4180 * @pf: PF being queried
4182 * Return a bitmap for first enabled traffic class for this PF.
4184 static u8
i40e_pf_get_default_tc(struct i40e_pf
*pf
)
4186 u8 enabled_tc
= pf
->hw
.func_caps
.enabled_tcmap
;
4190 return 0x1; /* TC0 */
4192 /* Find the first enabled TC */
4193 for (i
= 0; i
< I40E_MAX_TRAFFIC_CLASS
; i
++) {
4194 if (enabled_tc
& (1 << i
))
4202 * i40e_pf_get_pf_tc_map - Get bitmap for enabled traffic classes
4203 * @pf: PF being queried
4205 * Return a bitmap for enabled traffic classes for this PF.
4207 static u8
i40e_pf_get_tc_map(struct i40e_pf
*pf
)
4209 /* If DCB is not enabled for this PF then just return default TC */
4210 if (!(pf
->flags
& I40E_FLAG_DCB_ENABLED
))
4211 return i40e_pf_get_default_tc(pf
);
4213 /* SFP mode we want PF to be enabled for all TCs */
4214 if (!(pf
->flags
& I40E_FLAG_MFP_ENABLED
))
4215 return i40e_dcb_get_enabled_tc(&pf
->hw
.local_dcbx_config
);
4217 /* MFP enabled and iSCSI PF type */
4218 if (pf
->hw
.func_caps
.iscsi
)
4219 return i40e_get_iscsi_tc_map(pf
);
4221 return i40e_pf_get_default_tc(pf
);
4225 * i40e_vsi_get_bw_info - Query VSI BW Information
4226 * @vsi: the VSI being queried
4228 * Returns 0 on success, negative value on failure
4230 static int i40e_vsi_get_bw_info(struct i40e_vsi
*vsi
)
4232 struct i40e_aqc_query_vsi_ets_sla_config_resp bw_ets_config
= {0};
4233 struct i40e_aqc_query_vsi_bw_config_resp bw_config
= {0};
4234 struct i40e_pf
*pf
= vsi
->back
;
4235 struct i40e_hw
*hw
= &pf
->hw
;
4240 /* Get the VSI level BW configuration */
4241 aq_ret
= i40e_aq_query_vsi_bw_config(hw
, vsi
->seid
, &bw_config
, NULL
);
4243 dev_info(&pf
->pdev
->dev
,
4244 "couldn't get PF vsi bw config, err %d, aq_err %d\n",
4245 aq_ret
, pf
->hw
.aq
.asq_last_status
);
4249 /* Get the VSI level BW configuration per TC */
4250 aq_ret
= i40e_aq_query_vsi_ets_sla_config(hw
, vsi
->seid
, &bw_ets_config
,
4253 dev_info(&pf
->pdev
->dev
,
4254 "couldn't get PF vsi ets bw config, err %d, aq_err %d\n",
4255 aq_ret
, pf
->hw
.aq
.asq_last_status
);
4259 if (bw_config
.tc_valid_bits
!= bw_ets_config
.tc_valid_bits
) {
4260 dev_info(&pf
->pdev
->dev
,
4261 "Enabled TCs mismatch from querying VSI BW info 0x%08x 0x%08x\n",
4262 bw_config
.tc_valid_bits
,
4263 bw_ets_config
.tc_valid_bits
);
4264 /* Still continuing */
4267 vsi
->bw_limit
= le16_to_cpu(bw_config
.port_bw_limit
);
4268 vsi
->bw_max_quanta
= bw_config
.max_bw
;
4269 tc_bw_max
= le16_to_cpu(bw_ets_config
.tc_bw_max
[0]) |
4270 (le16_to_cpu(bw_ets_config
.tc_bw_max
[1]) << 16);
4271 for (i
= 0; i
< I40E_MAX_TRAFFIC_CLASS
; i
++) {
4272 vsi
->bw_ets_share_credits
[i
] = bw_ets_config
.share_credits
[i
];
4273 vsi
->bw_ets_limit_credits
[i
] =
4274 le16_to_cpu(bw_ets_config
.credits
[i
]);
4275 /* 3 bits out of 4 for each TC */
4276 vsi
->bw_ets_max_quanta
[i
] = (u8
)((tc_bw_max
>> (i
*4)) & 0x7);
4283 * i40e_vsi_configure_bw_alloc - Configure VSI BW allocation per TC
4284 * @vsi: the VSI being configured
4285 * @enabled_tc: TC bitmap
4286 * @bw_credits: BW shared credits per TC
4288 * Returns 0 on success, negative value on failure
4290 static int i40e_vsi_configure_bw_alloc(struct i40e_vsi
*vsi
, u8 enabled_tc
,
4293 struct i40e_aqc_configure_vsi_tc_bw_data bw_data
;
4297 bw_data
.tc_valid_bits
= enabled_tc
;
4298 for (i
= 0; i
< I40E_MAX_TRAFFIC_CLASS
; i
++)
4299 bw_data
.tc_bw_credits
[i
] = bw_share
[i
];
4301 aq_ret
= i40e_aq_config_vsi_tc_bw(&vsi
->back
->hw
, vsi
->seid
, &bw_data
,
4304 dev_info(&vsi
->back
->pdev
->dev
,
4305 "AQ command Config VSI BW allocation per TC failed = %d\n",
4306 vsi
->back
->hw
.aq
.asq_last_status
);
4310 for (i
= 0; i
< I40E_MAX_TRAFFIC_CLASS
; i
++)
4311 vsi
->info
.qs_handle
[i
] = bw_data
.qs_handles
[i
];
4317 * i40e_vsi_config_netdev_tc - Setup the netdev TC configuration
4318 * @vsi: the VSI being configured
4319 * @enabled_tc: TC map to be enabled
4322 static void i40e_vsi_config_netdev_tc(struct i40e_vsi
*vsi
, u8 enabled_tc
)
4324 struct net_device
*netdev
= vsi
->netdev
;
4325 struct i40e_pf
*pf
= vsi
->back
;
4326 struct i40e_hw
*hw
= &pf
->hw
;
4329 struct i40e_dcbx_config
*dcbcfg
= &hw
->local_dcbx_config
;
4335 netdev_reset_tc(netdev
);
4339 /* Set up actual enabled TCs on the VSI */
4340 if (netdev_set_num_tc(netdev
, vsi
->tc_config
.numtc
))
4343 /* set per TC queues for the VSI */
4344 for (i
= 0; i
< I40E_MAX_TRAFFIC_CLASS
; i
++) {
4345 /* Only set TC queues for enabled tcs
4347 * e.g. For a VSI that has TC0 and TC3 enabled the
4348 * enabled_tc bitmap would be 0x00001001; the driver
4349 * will set the numtc for netdev as 2 that will be
4350 * referenced by the netdev layer as TC 0 and 1.
4352 if (vsi
->tc_config
.enabled_tc
& (1 << i
))
4353 netdev_set_tc_queue(netdev
,
4354 vsi
->tc_config
.tc_info
[i
].netdev_tc
,
4355 vsi
->tc_config
.tc_info
[i
].qcount
,
4356 vsi
->tc_config
.tc_info
[i
].qoffset
);
4359 /* Assign UP2TC map for the VSI */
4360 for (i
= 0; i
< I40E_MAX_USER_PRIORITY
; i
++) {
4361 /* Get the actual TC# for the UP */
4362 u8 ets_tc
= dcbcfg
->etscfg
.prioritytable
[i
];
4363 /* Get the mapped netdev TC# for the UP */
4364 netdev_tc
= vsi
->tc_config
.tc_info
[ets_tc
].netdev_tc
;
4365 netdev_set_prio_tc_map(netdev
, i
, netdev_tc
);
4370 * i40e_vsi_update_queue_map - Update our copy of VSi info with new queue map
4371 * @vsi: the VSI being configured
4372 * @ctxt: the ctxt buffer returned from AQ VSI update param command
4374 static void i40e_vsi_update_queue_map(struct i40e_vsi
*vsi
,
4375 struct i40e_vsi_context
*ctxt
)
4377 /* copy just the sections touched not the entire info
4378 * since not all sections are valid as returned by
4381 vsi
->info
.mapping_flags
= ctxt
->info
.mapping_flags
;
4382 memcpy(&vsi
->info
.queue_mapping
,
4383 &ctxt
->info
.queue_mapping
, sizeof(vsi
->info
.queue_mapping
));
4384 memcpy(&vsi
->info
.tc_mapping
, ctxt
->info
.tc_mapping
,
4385 sizeof(vsi
->info
.tc_mapping
));
4389 * i40e_vsi_config_tc - Configure VSI Tx Scheduler for given TC map
4390 * @vsi: VSI to be configured
4391 * @enabled_tc: TC bitmap
4393 * This configures a particular VSI for TCs that are mapped to the
4394 * given TC bitmap. It uses default bandwidth share for TCs across
4395 * VSIs to configure TC for a particular VSI.
4398 * It is expected that the VSI queues have been quisced before calling
4401 static int i40e_vsi_config_tc(struct i40e_vsi
*vsi
, u8 enabled_tc
)
4403 u8 bw_share
[I40E_MAX_TRAFFIC_CLASS
] = {0};
4404 struct i40e_vsi_context ctxt
;
4408 /* Check if enabled_tc is same as existing or new TCs */
4409 if (vsi
->tc_config
.enabled_tc
== enabled_tc
)
4412 /* Enable ETS TCs with equal BW Share for now across all VSIs */
4413 for (i
= 0; i
< I40E_MAX_TRAFFIC_CLASS
; i
++) {
4414 if (enabled_tc
& (1 << i
))
4418 ret
= i40e_vsi_configure_bw_alloc(vsi
, enabled_tc
, bw_share
);
4420 dev_info(&vsi
->back
->pdev
->dev
,
4421 "Failed configuring TC map %d for VSI %d\n",
4422 enabled_tc
, vsi
->seid
);
4426 /* Update Queue Pairs Mapping for currently enabled UPs */
4427 ctxt
.seid
= vsi
->seid
;
4428 ctxt
.pf_num
= vsi
->back
->hw
.pf_id
;
4430 ctxt
.uplink_seid
= vsi
->uplink_seid
;
4431 ctxt
.info
= vsi
->info
;
4432 i40e_vsi_setup_queue_map(vsi
, &ctxt
, enabled_tc
, false);
4434 /* Update the VSI after updating the VSI queue-mapping information */
4435 ret
= i40e_aq_update_vsi_params(&vsi
->back
->hw
, &ctxt
, NULL
);
4437 dev_info(&vsi
->back
->pdev
->dev
,
4438 "update vsi failed, aq_err=%d\n",
4439 vsi
->back
->hw
.aq
.asq_last_status
);
4442 /* update the local VSI info with updated queue map */
4443 i40e_vsi_update_queue_map(vsi
, &ctxt
);
4444 vsi
->info
.valid_sections
= 0;
4446 /* Update current VSI BW information */
4447 ret
= i40e_vsi_get_bw_info(vsi
);
4449 dev_info(&vsi
->back
->pdev
->dev
,
4450 "Failed updating vsi bw info, aq_err=%d\n",
4451 vsi
->back
->hw
.aq
.asq_last_status
);
4455 /* Update the netdev TC setup */
4456 i40e_vsi_config_netdev_tc(vsi
, enabled_tc
);
4462 * i40e_veb_config_tc - Configure TCs for given VEB
4464 * @enabled_tc: TC bitmap
4466 * Configures given TC bitmap for VEB (switching) element
4468 int i40e_veb_config_tc(struct i40e_veb
*veb
, u8 enabled_tc
)
4470 struct i40e_aqc_configure_switching_comp_bw_config_data bw_data
= {0};
4471 struct i40e_pf
*pf
= veb
->pf
;
4475 /* No TCs or already enabled TCs just return */
4476 if (!enabled_tc
|| veb
->enabled_tc
== enabled_tc
)
4479 bw_data
.tc_valid_bits
= enabled_tc
;
4480 /* bw_data.absolute_credits is not set (relative) */
4482 /* Enable ETS TCs with equal BW Share for now */
4483 for (i
= 0; i
< I40E_MAX_TRAFFIC_CLASS
; i
++) {
4484 if (enabled_tc
& (1 << i
))
4485 bw_data
.tc_bw_share_credits
[i
] = 1;
4488 ret
= i40e_aq_config_switch_comp_bw_config(&pf
->hw
, veb
->seid
,
4491 dev_info(&pf
->pdev
->dev
,
4492 "veb bw config failed, aq_err=%d\n",
4493 pf
->hw
.aq
.asq_last_status
);
4497 /* Update the BW information */
4498 ret
= i40e_veb_get_bw_info(veb
);
4500 dev_info(&pf
->pdev
->dev
,
4501 "Failed getting veb bw config, aq_err=%d\n",
4502 pf
->hw
.aq
.asq_last_status
);
4509 #ifdef CONFIG_I40E_DCB
4511 * i40e_dcb_reconfigure - Reconfigure all VEBs and VSIs
4514 * Reconfigure VEB/VSIs on a given PF; it is assumed that
4515 * the caller would've quiesce all the VSIs before calling
4518 static void i40e_dcb_reconfigure(struct i40e_pf
*pf
)
4524 /* Enable the TCs available on PF to all VEBs */
4525 tc_map
= i40e_pf_get_tc_map(pf
);
4526 for (v
= 0; v
< I40E_MAX_VEB
; v
++) {
4529 ret
= i40e_veb_config_tc(pf
->veb
[v
], tc_map
);
4531 dev_info(&pf
->pdev
->dev
,
4532 "Failed configuring TC for VEB seid=%d\n",
4534 /* Will try to configure as many components */
4538 /* Update each VSI */
4539 for (v
= 0; v
< pf
->num_alloc_vsi
; v
++) {
4543 /* - Enable all TCs for the LAN VSI
4545 * - For FCoE VSI only enable the TC configured
4546 * as per the APP TLV
4548 * - For all others keep them at TC0 for now
4550 if (v
== pf
->lan_vsi
)
4551 tc_map
= i40e_pf_get_tc_map(pf
);
4553 tc_map
= i40e_pf_get_default_tc(pf
);
4555 if (pf
->vsi
[v
]->type
== I40E_VSI_FCOE
)
4556 tc_map
= i40e_get_fcoe_tc_map(pf
);
4557 #endif /* #ifdef I40E_FCOE */
4559 ret
= i40e_vsi_config_tc(pf
->vsi
[v
], tc_map
);
4561 dev_info(&pf
->pdev
->dev
,
4562 "Failed configuring TC for VSI seid=%d\n",
4564 /* Will try to configure as many components */
4566 /* Re-configure VSI vectors based on updated TC map */
4567 i40e_vsi_map_rings_to_vectors(pf
->vsi
[v
]);
4568 if (pf
->vsi
[v
]->netdev
)
4569 i40e_dcbnl_set_all(pf
->vsi
[v
]);
4575 * i40e_resume_port_tx - Resume port Tx
4578 * Resume a port's Tx and issue a PF reset in case of failure to
4581 static int i40e_resume_port_tx(struct i40e_pf
*pf
)
4583 struct i40e_hw
*hw
= &pf
->hw
;
4586 ret
= i40e_aq_resume_port_tx(hw
, NULL
);
4588 dev_info(&pf
->pdev
->dev
,
4589 "AQ command Resume Port Tx failed = %d\n",
4590 pf
->hw
.aq
.asq_last_status
);
4591 /* Schedule PF reset to recover */
4592 set_bit(__I40E_PF_RESET_REQUESTED
, &pf
->state
);
4593 i40e_service_event_schedule(pf
);
4600 * i40e_init_pf_dcb - Initialize DCB configuration
4601 * @pf: PF being configured
4603 * Query the current DCB configuration and cache it
4604 * in the hardware structure
4606 static int i40e_init_pf_dcb(struct i40e_pf
*pf
)
4608 struct i40e_hw
*hw
= &pf
->hw
;
4611 /* Do not enable DCB for SW1 and SW2 images even if the FW is capable */
4612 if (((pf
->hw
.aq
.fw_maj_ver
== 4) && (pf
->hw
.aq
.fw_min_ver
< 33)) ||
4613 (pf
->hw
.aq
.fw_maj_ver
< 4))
4616 /* Get the initial DCB configuration */
4617 err
= i40e_init_dcb(hw
);
4619 /* Device/Function is not DCBX capable */
4620 if ((!hw
->func_caps
.dcb
) ||
4621 (hw
->dcbx_status
== I40E_DCBX_STATUS_DISABLED
)) {
4622 dev_info(&pf
->pdev
->dev
,
4623 "DCBX offload is not supported or is disabled for this PF.\n");
4625 if (pf
->flags
& I40E_FLAG_MFP_ENABLED
)
4629 /* When status is not DISABLED then DCBX in FW */
4630 pf
->dcbx_cap
= DCB_CAP_DCBX_LLD_MANAGED
|
4631 DCB_CAP_DCBX_VER_IEEE
;
4633 pf
->flags
|= I40E_FLAG_DCB_CAPABLE
;
4634 /* Enable DCB tagging only when more than one TC */
4635 if (i40e_dcb_get_num_tc(&hw
->local_dcbx_config
) > 1)
4636 pf
->flags
|= I40E_FLAG_DCB_ENABLED
;
4637 dev_dbg(&pf
->pdev
->dev
,
4638 "DCBX offload is supported for this PF.\n");
4641 dev_info(&pf
->pdev
->dev
,
4642 "AQ Querying DCB configuration failed: aq_err %d\n",
4643 pf
->hw
.aq
.asq_last_status
);
4649 #endif /* CONFIG_I40E_DCB */
4650 #define SPEED_SIZE 14
4653 * i40e_print_link_message - print link up or down
4654 * @vsi: the VSI for which link needs a message
4656 static void i40e_print_link_message(struct i40e_vsi
*vsi
, bool isup
)
4658 char speed
[SPEED_SIZE
] = "Unknown";
4659 char fc
[FC_SIZE
] = "RX/TX";
4662 netdev_info(vsi
->netdev
, "NIC Link is Down\n");
4666 /* Warn user if link speed on NPAR enabled partition is not at
4669 if (vsi
->back
->hw
.func_caps
.npar_enable
&&
4670 (vsi
->back
->hw
.phy
.link_info
.link_speed
== I40E_LINK_SPEED_1GB
||
4671 vsi
->back
->hw
.phy
.link_info
.link_speed
== I40E_LINK_SPEED_100MB
))
4672 netdev_warn(vsi
->netdev
,
4673 "The partition detected link speed that is less than 10Gbps\n");
4675 switch (vsi
->back
->hw
.phy
.link_info
.link_speed
) {
4676 case I40E_LINK_SPEED_40GB
:
4677 strlcpy(speed
, "40 Gbps", SPEED_SIZE
);
4679 case I40E_LINK_SPEED_20GB
:
4680 strncpy(speed
, "20 Gbps", SPEED_SIZE
);
4682 case I40E_LINK_SPEED_10GB
:
4683 strlcpy(speed
, "10 Gbps", SPEED_SIZE
);
4685 case I40E_LINK_SPEED_1GB
:
4686 strlcpy(speed
, "1000 Mbps", SPEED_SIZE
);
4688 case I40E_LINK_SPEED_100MB
:
4689 strncpy(speed
, "100 Mbps", SPEED_SIZE
);
4695 switch (vsi
->back
->hw
.fc
.current_mode
) {
4697 strlcpy(fc
, "RX/TX", FC_SIZE
);
4699 case I40E_FC_TX_PAUSE
:
4700 strlcpy(fc
, "TX", FC_SIZE
);
4702 case I40E_FC_RX_PAUSE
:
4703 strlcpy(fc
, "RX", FC_SIZE
);
4706 strlcpy(fc
, "None", FC_SIZE
);
4710 netdev_info(vsi
->netdev
, "NIC Link is Up %s Full Duplex, Flow Control: %s\n",
4715 * i40e_up_complete - Finish the last steps of bringing up a connection
4716 * @vsi: the VSI being configured
4718 static int i40e_up_complete(struct i40e_vsi
*vsi
)
4720 struct i40e_pf
*pf
= vsi
->back
;
4723 if (pf
->flags
& I40E_FLAG_MSIX_ENABLED
)
4724 i40e_vsi_configure_msix(vsi
);
4726 i40e_configure_msi_and_legacy(vsi
);
4729 err
= i40e_vsi_control_rings(vsi
, true);
4733 clear_bit(__I40E_DOWN
, &vsi
->state
);
4734 i40e_napi_enable_all(vsi
);
4735 i40e_vsi_enable_irq(vsi
);
4737 if ((pf
->hw
.phy
.link_info
.link_info
& I40E_AQ_LINK_UP
) &&
4739 i40e_print_link_message(vsi
, true);
4740 netif_tx_start_all_queues(vsi
->netdev
);
4741 netif_carrier_on(vsi
->netdev
);
4742 } else if (vsi
->netdev
) {
4743 i40e_print_link_message(vsi
, false);
4744 /* need to check for qualified module here*/
4745 if ((pf
->hw
.phy
.link_info
.link_info
&
4746 I40E_AQ_MEDIA_AVAILABLE
) &&
4747 (!(pf
->hw
.phy
.link_info
.an_info
&
4748 I40E_AQ_QUALIFIED_MODULE
)))
4749 netdev_err(vsi
->netdev
,
4750 "the driver failed to link because an unqualified module was detected.");
4753 /* replay FDIR SB filters */
4754 if (vsi
->type
== I40E_VSI_FDIR
) {
4755 /* reset fd counters */
4756 pf
->fd_add_err
= pf
->fd_atr_cnt
= 0;
4757 if (pf
->fd_tcp_rule
> 0) {
4758 pf
->flags
&= ~I40E_FLAG_FD_ATR_ENABLED
;
4759 if (I40E_DEBUG_FD
& pf
->hw
.debug_mask
)
4760 dev_info(&pf
->pdev
->dev
, "Forcing ATR off, sideband rules for TCP/IPv4 exist\n");
4761 pf
->fd_tcp_rule
= 0;
4763 i40e_fdir_filter_restore(vsi
);
4765 i40e_service_event_schedule(pf
);
4771 * i40e_vsi_reinit_locked - Reset the VSI
4772 * @vsi: the VSI being configured
4774 * Rebuild the ring structs after some configuration
4775 * has changed, e.g. MTU size.
4777 static void i40e_vsi_reinit_locked(struct i40e_vsi
*vsi
)
4779 struct i40e_pf
*pf
= vsi
->back
;
4781 WARN_ON(in_interrupt());
4782 while (test_and_set_bit(__I40E_CONFIG_BUSY
, &pf
->state
))
4783 usleep_range(1000, 2000);
4786 /* Give a VF some time to respond to the reset. The
4787 * two second wait is based upon the watchdog cycle in
4790 if (vsi
->type
== I40E_VSI_SRIOV
)
4793 clear_bit(__I40E_CONFIG_BUSY
, &pf
->state
);
4797 * i40e_up - Bring the connection back up after being down
4798 * @vsi: the VSI being configured
4800 int i40e_up(struct i40e_vsi
*vsi
)
4804 err
= i40e_vsi_configure(vsi
);
4806 err
= i40e_up_complete(vsi
);
4812 * i40e_down - Shutdown the connection processing
4813 * @vsi: the VSI being stopped
4815 void i40e_down(struct i40e_vsi
*vsi
)
4819 /* It is assumed that the caller of this function
4820 * sets the vsi->state __I40E_DOWN bit.
4823 netif_carrier_off(vsi
->netdev
);
4824 netif_tx_disable(vsi
->netdev
);
4826 i40e_vsi_disable_irq(vsi
);
4827 i40e_vsi_control_rings(vsi
, false);
4828 i40e_napi_disable_all(vsi
);
4830 for (i
= 0; i
< vsi
->num_queue_pairs
; i
++) {
4831 i40e_clean_tx_ring(vsi
->tx_rings
[i
]);
4832 i40e_clean_rx_ring(vsi
->rx_rings
[i
]);
4837 * i40e_setup_tc - configure multiple traffic classes
4838 * @netdev: net device to configure
4839 * @tc: number of traffic classes to enable
4842 int i40e_setup_tc(struct net_device
*netdev
, u8 tc
)
4844 static int i40e_setup_tc(struct net_device
*netdev
, u8 tc
)
4847 struct i40e_netdev_priv
*np
= netdev_priv(netdev
);
4848 struct i40e_vsi
*vsi
= np
->vsi
;
4849 struct i40e_pf
*pf
= vsi
->back
;
4854 /* Check if DCB enabled to continue */
4855 if (!(pf
->flags
& I40E_FLAG_DCB_ENABLED
)) {
4856 netdev_info(netdev
, "DCB is not enabled for adapter\n");
4860 /* Check if MFP enabled */
4861 if (pf
->flags
& I40E_FLAG_MFP_ENABLED
) {
4862 netdev_info(netdev
, "Configuring TC not supported in MFP mode\n");
4866 /* Check whether tc count is within enabled limit */
4867 if (tc
> i40e_pf_get_num_tc(pf
)) {
4868 netdev_info(netdev
, "TC count greater than enabled on link for adapter\n");
4872 /* Generate TC map for number of tc requested */
4873 for (i
= 0; i
< tc
; i
++)
4874 enabled_tc
|= (1 << i
);
4876 /* Requesting same TC configuration as already enabled */
4877 if (enabled_tc
== vsi
->tc_config
.enabled_tc
)
4880 /* Quiesce VSI queues */
4881 i40e_quiesce_vsi(vsi
);
4883 /* Configure VSI for enabled TCs */
4884 ret
= i40e_vsi_config_tc(vsi
, enabled_tc
);
4886 netdev_info(netdev
, "Failed configuring TC for VSI seid=%d\n",
4892 i40e_unquiesce_vsi(vsi
);
4899 * i40e_open - Called when a network interface is made active
4900 * @netdev: network interface device structure
4902 * The open entry point is called when a network interface is made
4903 * active by the system (IFF_UP). At this point all resources needed
4904 * for transmit and receive operations are allocated, the interrupt
4905 * handler is registered with the OS, the netdev watchdog subtask is
4906 * enabled, and the stack is notified that the interface is ready.
4908 * Returns 0 on success, negative value on failure
4910 int i40e_open(struct net_device
*netdev
)
4912 struct i40e_netdev_priv
*np
= netdev_priv(netdev
);
4913 struct i40e_vsi
*vsi
= np
->vsi
;
4914 struct i40e_pf
*pf
= vsi
->back
;
4917 /* disallow open during test or if eeprom is broken */
4918 if (test_bit(__I40E_TESTING
, &pf
->state
) ||
4919 test_bit(__I40E_BAD_EEPROM
, &pf
->state
))
4922 netif_carrier_off(netdev
);
4924 err
= i40e_vsi_open(vsi
);
4928 /* configure global TSO hardware offload settings */
4929 wr32(&pf
->hw
, I40E_GLLAN_TSOMSK_F
, be32_to_cpu(TCP_FLAG_PSH
|
4930 TCP_FLAG_FIN
) >> 16);
4931 wr32(&pf
->hw
, I40E_GLLAN_TSOMSK_M
, be32_to_cpu(TCP_FLAG_PSH
|
4933 TCP_FLAG_CWR
) >> 16);
4934 wr32(&pf
->hw
, I40E_GLLAN_TSOMSK_L
, be32_to_cpu(TCP_FLAG_CWR
) >> 16);
4936 #ifdef CONFIG_I40E_VXLAN
4937 vxlan_get_rx_port(netdev
);
4945 * @vsi: the VSI to open
4947 * Finish initialization of the VSI.
4949 * Returns 0 on success, negative value on failure
4951 int i40e_vsi_open(struct i40e_vsi
*vsi
)
4953 struct i40e_pf
*pf
= vsi
->back
;
4954 char int_name
[I40E_INT_NAME_STR_LEN
];
4957 /* allocate descriptors */
4958 err
= i40e_vsi_setup_tx_resources(vsi
);
4961 err
= i40e_vsi_setup_rx_resources(vsi
);
4965 err
= i40e_vsi_configure(vsi
);
4970 snprintf(int_name
, sizeof(int_name
) - 1, "%s-%s",
4971 dev_driver_string(&pf
->pdev
->dev
), vsi
->netdev
->name
);
4972 err
= i40e_vsi_request_irq(vsi
, int_name
);
4976 /* Notify the stack of the actual queue counts. */
4977 err
= netif_set_real_num_tx_queues(vsi
->netdev
,
4978 vsi
->num_queue_pairs
);
4980 goto err_set_queues
;
4982 err
= netif_set_real_num_rx_queues(vsi
->netdev
,
4983 vsi
->num_queue_pairs
);
4985 goto err_set_queues
;
4987 } else if (vsi
->type
== I40E_VSI_FDIR
) {
4988 snprintf(int_name
, sizeof(int_name
) - 1, "%s-%s:fdir",
4989 dev_driver_string(&pf
->pdev
->dev
),
4990 dev_name(&pf
->pdev
->dev
));
4991 err
= i40e_vsi_request_irq(vsi
, int_name
);
4998 err
= i40e_up_complete(vsi
);
5000 goto err_up_complete
;
5007 i40e_vsi_free_irq(vsi
);
5009 i40e_vsi_free_rx_resources(vsi
);
5011 i40e_vsi_free_tx_resources(vsi
);
5012 if (vsi
== pf
->vsi
[pf
->lan_vsi
])
5013 i40e_do_reset(pf
, (1 << __I40E_PF_RESET_REQUESTED
));
5019 * i40e_fdir_filter_exit - Cleans up the Flow Director accounting
5020 * @pf: Pointer to PF
5022 * This function destroys the hlist where all the Flow Director
5023 * filters were saved.
5025 static void i40e_fdir_filter_exit(struct i40e_pf
*pf
)
5027 struct i40e_fdir_filter
*filter
;
5028 struct hlist_node
*node2
;
5030 hlist_for_each_entry_safe(filter
, node2
,
5031 &pf
->fdir_filter_list
, fdir_node
) {
5032 hlist_del(&filter
->fdir_node
);
5035 pf
->fdir_pf_active_filters
= 0;
5039 * i40e_close - Disables a network interface
5040 * @netdev: network interface device structure
5042 * The close entry point is called when an interface is de-activated
5043 * by the OS. The hardware is still under the driver's control, but
5044 * this netdev interface is disabled.
5046 * Returns 0, this is not allowed to fail
5049 int i40e_close(struct net_device
*netdev
)
5051 static int i40e_close(struct net_device
*netdev
)
5054 struct i40e_netdev_priv
*np
= netdev_priv(netdev
);
5055 struct i40e_vsi
*vsi
= np
->vsi
;
5057 i40e_vsi_close(vsi
);
5063 * i40e_do_reset - Start a PF or Core Reset sequence
5064 * @pf: board private structure
5065 * @reset_flags: which reset is requested
5067 * The essential difference in resets is that the PF Reset
5068 * doesn't clear the packet buffers, doesn't reset the PE
5069 * firmware, and doesn't bother the other PFs on the chip.
5071 void i40e_do_reset(struct i40e_pf
*pf
, u32 reset_flags
)
5075 WARN_ON(in_interrupt());
5077 if (i40e_check_asq_alive(&pf
->hw
))
5078 i40e_vc_notify_reset(pf
);
5080 /* do the biggest reset indicated */
5081 if (reset_flags
& (1 << __I40E_GLOBAL_RESET_REQUESTED
)) {
5083 /* Request a Global Reset
5085 * This will start the chip's countdown to the actual full
5086 * chip reset event, and a warning interrupt to be sent
5087 * to all PFs, including the requestor. Our handler
5088 * for the warning interrupt will deal with the shutdown
5089 * and recovery of the switch setup.
5091 dev_dbg(&pf
->pdev
->dev
, "GlobalR requested\n");
5092 val
= rd32(&pf
->hw
, I40E_GLGEN_RTRIG
);
5093 val
|= I40E_GLGEN_RTRIG_GLOBR_MASK
;
5094 wr32(&pf
->hw
, I40E_GLGEN_RTRIG
, val
);
5096 } else if (reset_flags
& (1 << __I40E_CORE_RESET_REQUESTED
)) {
5098 /* Request a Core Reset
5100 * Same as Global Reset, except does *not* include the MAC/PHY
5102 dev_dbg(&pf
->pdev
->dev
, "CoreR requested\n");
5103 val
= rd32(&pf
->hw
, I40E_GLGEN_RTRIG
);
5104 val
|= I40E_GLGEN_RTRIG_CORER_MASK
;
5105 wr32(&pf
->hw
, I40E_GLGEN_RTRIG
, val
);
5106 i40e_flush(&pf
->hw
);
5108 } else if (reset_flags
& (1 << __I40E_PF_RESET_REQUESTED
)) {
5110 /* Request a PF Reset
5112 * Resets only the PF-specific registers
5114 * This goes directly to the tear-down and rebuild of
5115 * the switch, since we need to do all the recovery as
5116 * for the Core Reset.
5118 dev_dbg(&pf
->pdev
->dev
, "PFR requested\n");
5119 i40e_handle_reset_warning(pf
);
5121 } else if (reset_flags
& (1 << __I40E_REINIT_REQUESTED
)) {
5124 /* Find the VSI(s) that requested a re-init */
5125 dev_info(&pf
->pdev
->dev
,
5126 "VSI reinit requested\n");
5127 for (v
= 0; v
< pf
->num_alloc_vsi
; v
++) {
5128 struct i40e_vsi
*vsi
= pf
->vsi
[v
];
5130 test_bit(__I40E_REINIT_REQUESTED
, &vsi
->state
)) {
5131 i40e_vsi_reinit_locked(pf
->vsi
[v
]);
5132 clear_bit(__I40E_REINIT_REQUESTED
, &vsi
->state
);
5136 /* no further action needed, so return now */
5138 } else if (reset_flags
& (1 << __I40E_DOWN_REQUESTED
)) {
5141 /* Find the VSI(s) that needs to be brought down */
5142 dev_info(&pf
->pdev
->dev
, "VSI down requested\n");
5143 for (v
= 0; v
< pf
->num_alloc_vsi
; v
++) {
5144 struct i40e_vsi
*vsi
= pf
->vsi
[v
];
5146 test_bit(__I40E_DOWN_REQUESTED
, &vsi
->state
)) {
5147 set_bit(__I40E_DOWN
, &vsi
->state
);
5149 clear_bit(__I40E_DOWN_REQUESTED
, &vsi
->state
);
5153 /* no further action needed, so return now */
5156 dev_info(&pf
->pdev
->dev
,
5157 "bad reset request 0x%08x\n", reset_flags
);
5162 #ifdef CONFIG_I40E_DCB
5164 * i40e_dcb_need_reconfig - Check if DCB needs reconfig
5165 * @pf: board private structure
5166 * @old_cfg: current DCB config
5167 * @new_cfg: new DCB config
5169 bool i40e_dcb_need_reconfig(struct i40e_pf
*pf
,
5170 struct i40e_dcbx_config
*old_cfg
,
5171 struct i40e_dcbx_config
*new_cfg
)
5173 bool need_reconfig
= false;
5175 /* Check if ETS configuration has changed */
5176 if (memcmp(&new_cfg
->etscfg
,
5178 sizeof(new_cfg
->etscfg
))) {
5179 /* If Priority Table has changed reconfig is needed */
5180 if (memcmp(&new_cfg
->etscfg
.prioritytable
,
5181 &old_cfg
->etscfg
.prioritytable
,
5182 sizeof(new_cfg
->etscfg
.prioritytable
))) {
5183 need_reconfig
= true;
5184 dev_dbg(&pf
->pdev
->dev
, "ETS UP2TC changed.\n");
5187 if (memcmp(&new_cfg
->etscfg
.tcbwtable
,
5188 &old_cfg
->etscfg
.tcbwtable
,
5189 sizeof(new_cfg
->etscfg
.tcbwtable
)))
5190 dev_dbg(&pf
->pdev
->dev
, "ETS TC BW Table changed.\n");
5192 if (memcmp(&new_cfg
->etscfg
.tsatable
,
5193 &old_cfg
->etscfg
.tsatable
,
5194 sizeof(new_cfg
->etscfg
.tsatable
)))
5195 dev_dbg(&pf
->pdev
->dev
, "ETS TSA Table changed.\n");
5198 /* Check if PFC configuration has changed */
5199 if (memcmp(&new_cfg
->pfc
,
5201 sizeof(new_cfg
->pfc
))) {
5202 need_reconfig
= true;
5203 dev_dbg(&pf
->pdev
->dev
, "PFC config change detected.\n");
5206 /* Check if APP Table has changed */
5207 if (memcmp(&new_cfg
->app
,
5209 sizeof(new_cfg
->app
))) {
5210 need_reconfig
= true;
5211 dev_dbg(&pf
->pdev
->dev
, "APP Table change detected.\n");
5214 dev_dbg(&pf
->pdev
->dev
, "%s: need_reconfig=%d\n", __func__
,
5216 return need_reconfig
;
5220 * i40e_handle_lldp_event - Handle LLDP Change MIB event
5221 * @pf: board private structure
5222 * @e: event info posted on ARQ
5224 static int i40e_handle_lldp_event(struct i40e_pf
*pf
,
5225 struct i40e_arq_event_info
*e
)
5227 struct i40e_aqc_lldp_get_mib
*mib
=
5228 (struct i40e_aqc_lldp_get_mib
*)&e
->desc
.params
.raw
;
5229 struct i40e_hw
*hw
= &pf
->hw
;
5230 struct i40e_dcbx_config tmp_dcbx_cfg
;
5231 bool need_reconfig
= false;
5235 /* Not DCB capable or capability disabled */
5236 if (!(pf
->flags
& I40E_FLAG_DCB_CAPABLE
))
5239 /* Ignore if event is not for Nearest Bridge */
5240 type
= ((mib
->type
>> I40E_AQ_LLDP_BRIDGE_TYPE_SHIFT
)
5241 & I40E_AQ_LLDP_BRIDGE_TYPE_MASK
);
5242 dev_dbg(&pf
->pdev
->dev
,
5243 "%s: LLDP event mib bridge type 0x%x\n", __func__
, type
);
5244 if (type
!= I40E_AQ_LLDP_BRIDGE_TYPE_NEAREST_BRIDGE
)
5247 /* Check MIB Type and return if event for Remote MIB update */
5248 type
= mib
->type
& I40E_AQ_LLDP_MIB_TYPE_MASK
;
5249 dev_dbg(&pf
->pdev
->dev
,
5250 "%s: LLDP event mib type %s\n", __func__
,
5251 type
? "remote" : "local");
5252 if (type
== I40E_AQ_LLDP_MIB_REMOTE
) {
5253 /* Update the remote cached instance and return */
5254 ret
= i40e_aq_get_dcb_config(hw
, I40E_AQ_LLDP_MIB_REMOTE
,
5255 I40E_AQ_LLDP_BRIDGE_TYPE_NEAREST_BRIDGE
,
5256 &hw
->remote_dcbx_config
);
5260 /* Store the old configuration */
5261 tmp_dcbx_cfg
= hw
->local_dcbx_config
;
5263 /* Reset the old DCBx configuration data */
5264 memset(&hw
->local_dcbx_config
, 0, sizeof(hw
->local_dcbx_config
));
5265 /* Get updated DCBX data from firmware */
5266 ret
= i40e_get_dcb_config(&pf
->hw
);
5268 dev_info(&pf
->pdev
->dev
, "Failed querying DCB configuration data from firmware.\n");
5272 /* No change detected in DCBX configs */
5273 if (!memcmp(&tmp_dcbx_cfg
, &hw
->local_dcbx_config
,
5274 sizeof(tmp_dcbx_cfg
))) {
5275 dev_dbg(&pf
->pdev
->dev
, "No change detected in DCBX configuration.\n");
5279 need_reconfig
= i40e_dcb_need_reconfig(pf
, &tmp_dcbx_cfg
,
5280 &hw
->local_dcbx_config
);
5282 i40e_dcbnl_flush_apps(pf
, &tmp_dcbx_cfg
, &hw
->local_dcbx_config
);
5287 /* Enable DCB tagging only when more than one TC */
5288 if (i40e_dcb_get_num_tc(&hw
->local_dcbx_config
) > 1)
5289 pf
->flags
|= I40E_FLAG_DCB_ENABLED
;
5291 pf
->flags
&= ~I40E_FLAG_DCB_ENABLED
;
5293 set_bit(__I40E_PORT_TX_SUSPENDED
, &pf
->state
);
5294 /* Reconfiguration needed quiesce all VSIs */
5295 i40e_pf_quiesce_all_vsi(pf
);
5297 /* Changes in configuration update VEB/VSI */
5298 i40e_dcb_reconfigure(pf
);
5300 ret
= i40e_resume_port_tx(pf
);
5302 clear_bit(__I40E_PORT_TX_SUSPENDED
, &pf
->state
);
5303 /* In case of error no point in resuming VSIs */
5307 /* Wait for the PF's Tx queues to be disabled */
5308 ret
= i40e_pf_wait_txq_disabled(pf
);
5310 /* Schedule PF reset to recover */
5311 set_bit(__I40E_PF_RESET_REQUESTED
, &pf
->state
);
5312 i40e_service_event_schedule(pf
);
5314 i40e_pf_unquiesce_all_vsi(pf
);
5320 #endif /* CONFIG_I40E_DCB */
5323 * i40e_do_reset_safe - Protected reset path for userland calls.
5324 * @pf: board private structure
5325 * @reset_flags: which reset is requested
5328 void i40e_do_reset_safe(struct i40e_pf
*pf
, u32 reset_flags
)
5331 i40e_do_reset(pf
, reset_flags
);
5336 * i40e_handle_lan_overflow_event - Handler for LAN queue overflow event
5337 * @pf: board private structure
5338 * @e: event info posted on ARQ
5340 * Handler for LAN Queue Overflow Event generated by the firmware for PF
5343 static void i40e_handle_lan_overflow_event(struct i40e_pf
*pf
,
5344 struct i40e_arq_event_info
*e
)
5346 struct i40e_aqc_lan_overflow
*data
=
5347 (struct i40e_aqc_lan_overflow
*)&e
->desc
.params
.raw
;
5348 u32 queue
= le32_to_cpu(data
->prtdcb_rupto
);
5349 u32 qtx_ctl
= le32_to_cpu(data
->otx_ctl
);
5350 struct i40e_hw
*hw
= &pf
->hw
;
5354 dev_dbg(&pf
->pdev
->dev
, "overflow Rx Queue Number = %d QTX_CTL=0x%08x\n",
5357 /* Queue belongs to VF, find the VF and issue VF reset */
5358 if (((qtx_ctl
& I40E_QTX_CTL_PFVF_Q_MASK
)
5359 >> I40E_QTX_CTL_PFVF_Q_SHIFT
) == I40E_QTX_CTL_VF_QUEUE
) {
5360 vf_id
= (u16
)((qtx_ctl
& I40E_QTX_CTL_VFVM_INDX_MASK
)
5361 >> I40E_QTX_CTL_VFVM_INDX_SHIFT
);
5362 vf_id
-= hw
->func_caps
.vf_base_id
;
5363 vf
= &pf
->vf
[vf_id
];
5364 i40e_vc_notify_vf_reset(vf
);
5365 /* Allow VF to process pending reset notification */
5367 i40e_reset_vf(vf
, false);
5372 * i40e_service_event_complete - Finish up the service event
5373 * @pf: board private structure
5375 static void i40e_service_event_complete(struct i40e_pf
*pf
)
5377 BUG_ON(!test_bit(__I40E_SERVICE_SCHED
, &pf
->state
));
5379 /* flush memory to make sure state is correct before next watchog */
5380 smp_mb__before_atomic();
5381 clear_bit(__I40E_SERVICE_SCHED
, &pf
->state
);
5385 * i40e_get_cur_guaranteed_fd_count - Get the consumed guaranteed FD filters
5386 * @pf: board private structure
5388 u32
i40e_get_cur_guaranteed_fd_count(struct i40e_pf
*pf
)
5392 val
= rd32(&pf
->hw
, I40E_PFQF_FDSTAT
);
5393 fcnt_prog
= (val
& I40E_PFQF_FDSTAT_GUARANT_CNT_MASK
);
5398 * i40e_get_current_fd_count - Get total FD filters programmed for this PF
5399 * @pf: board private structure
5401 u32
i40e_get_current_fd_count(struct i40e_pf
*pf
)
5405 val
= rd32(&pf
->hw
, I40E_PFQF_FDSTAT
);
5406 fcnt_prog
= (val
& I40E_PFQF_FDSTAT_GUARANT_CNT_MASK
) +
5407 ((val
& I40E_PFQF_FDSTAT_BEST_CNT_MASK
) >>
5408 I40E_PFQF_FDSTAT_BEST_CNT_SHIFT
);
5413 * i40e_get_global_fd_count - Get total FD filters programmed on device
5414 * @pf: board private structure
5416 u32
i40e_get_global_fd_count(struct i40e_pf
*pf
)
5420 val
= rd32(&pf
->hw
, I40E_GLQF_FDCNT_0
);
5421 fcnt_prog
= (val
& I40E_GLQF_FDCNT_0_GUARANT_CNT_MASK
) +
5422 ((val
& I40E_GLQF_FDCNT_0_BESTCNT_MASK
) >>
5423 I40E_GLQF_FDCNT_0_BESTCNT_SHIFT
);
5428 * i40e_fdir_check_and_reenable - Function to reenabe FD ATR or SB if disabled
5429 * @pf: board private structure
5431 void i40e_fdir_check_and_reenable(struct i40e_pf
*pf
)
5433 u32 fcnt_prog
, fcnt_avail
;
5435 if (test_bit(__I40E_FD_FLUSH_REQUESTED
, &pf
->state
))
5438 /* Check if, FD SB or ATR was auto disabled and if there is enough room
5441 fcnt_prog
= i40e_get_global_fd_count(pf
);
5442 fcnt_avail
= pf
->fdir_pf_filter_count
;
5443 if ((fcnt_prog
< (fcnt_avail
- I40E_FDIR_BUFFER_HEAD_ROOM
)) ||
5444 (pf
->fd_add_err
== 0) ||
5445 (i40e_get_current_atr_cnt(pf
) < pf
->fd_atr_cnt
)) {
5446 if ((pf
->flags
& I40E_FLAG_FD_SB_ENABLED
) &&
5447 (pf
->auto_disable_flags
& I40E_FLAG_FD_SB_ENABLED
)) {
5448 pf
->auto_disable_flags
&= ~I40E_FLAG_FD_SB_ENABLED
;
5449 if (I40E_DEBUG_FD
& pf
->hw
.debug_mask
)
5450 dev_info(&pf
->pdev
->dev
, "FD Sideband/ntuple is being enabled since we have space in the table now\n");
5453 /* Wait for some more space to be available to turn on ATR */
5454 if (fcnt_prog
< (fcnt_avail
- I40E_FDIR_BUFFER_HEAD_ROOM
* 2)) {
5455 if ((pf
->flags
& I40E_FLAG_FD_ATR_ENABLED
) &&
5456 (pf
->auto_disable_flags
& I40E_FLAG_FD_ATR_ENABLED
)) {
5457 pf
->auto_disable_flags
&= ~I40E_FLAG_FD_ATR_ENABLED
;
5458 if (I40E_DEBUG_FD
& pf
->hw
.debug_mask
)
5459 dev_info(&pf
->pdev
->dev
, "ATR is being enabled since we have space in the table now\n");
5464 #define I40E_MIN_FD_FLUSH_INTERVAL 10
5465 #define I40E_MIN_FD_FLUSH_SB_ATR_UNSTABLE 30
5467 * i40e_fdir_flush_and_replay - Function to flush all FD filters and replay SB
5468 * @pf: board private structure
5470 static void i40e_fdir_flush_and_replay(struct i40e_pf
*pf
)
5472 unsigned long min_flush_time
;
5473 int flush_wait_retry
= 50;
5474 bool disable_atr
= false;
5478 if (!(pf
->flags
& (I40E_FLAG_FD_SB_ENABLED
| I40E_FLAG_FD_ATR_ENABLED
)))
5481 if (time_after(jiffies
, pf
->fd_flush_timestamp
+
5482 (I40E_MIN_FD_FLUSH_INTERVAL
* HZ
))) {
5483 /* If the flush is happening too quick and we have mostly
5484 * SB rules we should not re-enable ATR for some time.
5486 min_flush_time
= pf
->fd_flush_timestamp
5487 + (I40E_MIN_FD_FLUSH_SB_ATR_UNSTABLE
* HZ
);
5488 fd_room
= pf
->fdir_pf_filter_count
- pf
->fdir_pf_active_filters
;
5490 if (!(time_after(jiffies
, min_flush_time
)) &&
5491 (fd_room
< I40E_FDIR_BUFFER_HEAD_ROOM_FOR_ATR
)) {
5492 if (I40E_DEBUG_FD
& pf
->hw
.debug_mask
)
5493 dev_info(&pf
->pdev
->dev
, "ATR disabled, not enough FD filter space.\n");
5497 pf
->fd_flush_timestamp
= jiffies
;
5498 pf
->flags
&= ~I40E_FLAG_FD_ATR_ENABLED
;
5499 /* flush all filters */
5500 wr32(&pf
->hw
, I40E_PFQF_CTL_1
,
5501 I40E_PFQF_CTL_1_CLEARFDTABLE_MASK
);
5502 i40e_flush(&pf
->hw
);
5506 /* Check FD flush status every 5-6msec */
5507 usleep_range(5000, 6000);
5508 reg
= rd32(&pf
->hw
, I40E_PFQF_CTL_1
);
5509 if (!(reg
& I40E_PFQF_CTL_1_CLEARFDTABLE_MASK
))
5511 } while (flush_wait_retry
--);
5512 if (reg
& I40E_PFQF_CTL_1_CLEARFDTABLE_MASK
) {
5513 dev_warn(&pf
->pdev
->dev
, "FD table did not flush, needs more time\n");
5515 /* replay sideband filters */
5516 i40e_fdir_filter_restore(pf
->vsi
[pf
->lan_vsi
]);
5518 pf
->flags
|= I40E_FLAG_FD_ATR_ENABLED
;
5519 clear_bit(__I40E_FD_FLUSH_REQUESTED
, &pf
->state
);
5520 if (I40E_DEBUG_FD
& pf
->hw
.debug_mask
)
5521 dev_info(&pf
->pdev
->dev
, "FD Filter table flushed and FD-SB replayed.\n");
5527 * i40e_get_current_atr_count - Get the count of total FD ATR filters programmed
5528 * @pf: board private structure
5530 u32
i40e_get_current_atr_cnt(struct i40e_pf
*pf
)
5532 return i40e_get_current_fd_count(pf
) - pf
->fdir_pf_active_filters
;
5535 /* We can see up to 256 filter programming desc in transit if the filters are
5536 * being applied really fast; before we see the first
5537 * filter miss error on Rx queue 0. Accumulating enough error messages before
5538 * reacting will make sure we don't cause flush too often.
5540 #define I40E_MAX_FD_PROGRAM_ERROR 256
5543 * i40e_fdir_reinit_subtask - Worker thread to reinit FDIR filter table
5544 * @pf: board private structure
5546 static void i40e_fdir_reinit_subtask(struct i40e_pf
*pf
)
5549 /* if interface is down do nothing */
5550 if (test_bit(__I40E_DOWN
, &pf
->state
))
5553 if (!(pf
->flags
& (I40E_FLAG_FD_SB_ENABLED
| I40E_FLAG_FD_ATR_ENABLED
)))
5556 if (test_bit(__I40E_FD_FLUSH_REQUESTED
, &pf
->state
))
5557 i40e_fdir_flush_and_replay(pf
);
5559 i40e_fdir_check_and_reenable(pf
);
5564 * i40e_vsi_link_event - notify VSI of a link event
5565 * @vsi: vsi to be notified
5566 * @link_up: link up or down
5568 static void i40e_vsi_link_event(struct i40e_vsi
*vsi
, bool link_up
)
5570 if (!vsi
|| test_bit(__I40E_DOWN
, &vsi
->state
))
5573 switch (vsi
->type
) {
5578 if (!vsi
->netdev
|| !vsi
->netdev_registered
)
5582 netif_carrier_on(vsi
->netdev
);
5583 netif_tx_wake_all_queues(vsi
->netdev
);
5585 netif_carrier_off(vsi
->netdev
);
5586 netif_tx_stop_all_queues(vsi
->netdev
);
5590 case I40E_VSI_SRIOV
:
5591 case I40E_VSI_VMDQ2
:
5593 case I40E_VSI_MIRROR
:
5595 /* there is no notification for other VSIs */
5601 * i40e_veb_link_event - notify elements on the veb of a link event
5602 * @veb: veb to be notified
5603 * @link_up: link up or down
5605 static void i40e_veb_link_event(struct i40e_veb
*veb
, bool link_up
)
5610 if (!veb
|| !veb
->pf
)
5614 /* depth first... */
5615 for (i
= 0; i
< I40E_MAX_VEB
; i
++)
5616 if (pf
->veb
[i
] && (pf
->veb
[i
]->uplink_seid
== veb
->seid
))
5617 i40e_veb_link_event(pf
->veb
[i
], link_up
);
5619 /* ... now the local VSIs */
5620 for (i
= 0; i
< pf
->num_alloc_vsi
; i
++)
5621 if (pf
->vsi
[i
] && (pf
->vsi
[i
]->uplink_seid
== veb
->seid
))
5622 i40e_vsi_link_event(pf
->vsi
[i
], link_up
);
5626 * i40e_link_event - Update netif_carrier status
5627 * @pf: board private structure
5629 static void i40e_link_event(struct i40e_pf
*pf
)
5631 bool new_link
, old_link
;
5632 struct i40e_vsi
*vsi
= pf
->vsi
[pf
->lan_vsi
];
5633 u8 new_link_speed
, old_link_speed
;
5635 /* set this to force the get_link_status call to refresh state */
5636 pf
->hw
.phy
.get_link_info
= true;
5638 old_link
= (pf
->hw
.phy
.link_info_old
.link_info
& I40E_AQ_LINK_UP
);
5639 new_link
= i40e_get_link_status(&pf
->hw
);
5640 old_link_speed
= pf
->hw
.phy
.link_info_old
.link_speed
;
5641 new_link_speed
= pf
->hw
.phy
.link_info
.link_speed
;
5643 if (new_link
== old_link
&&
5644 new_link_speed
== old_link_speed
&&
5645 (test_bit(__I40E_DOWN
, &vsi
->state
) ||
5646 new_link
== netif_carrier_ok(vsi
->netdev
)))
5649 if (!test_bit(__I40E_DOWN
, &vsi
->state
))
5650 i40e_print_link_message(vsi
, new_link
);
5652 /* Notify the base of the switch tree connected to
5653 * the link. Floating VEBs are not notified.
5655 if (pf
->lan_veb
!= I40E_NO_VEB
&& pf
->veb
[pf
->lan_veb
])
5656 i40e_veb_link_event(pf
->veb
[pf
->lan_veb
], new_link
);
5658 i40e_vsi_link_event(vsi
, new_link
);
5661 i40e_vc_notify_link_state(pf
);
5663 if (pf
->flags
& I40E_FLAG_PTP
)
5664 i40e_ptp_set_increment(pf
);
5668 * i40e_check_hang_subtask - Check for hung queues and dropped interrupts
5669 * @pf: board private structure
5671 * Set the per-queue flags to request a check for stuck queues in the irq
5672 * clean functions, then force interrupts to be sure the irq clean is called.
5674 static void i40e_check_hang_subtask(struct i40e_pf
*pf
)
5678 /* If we're down or resetting, just bail */
5679 if (test_bit(__I40E_DOWN
, &pf
->state
) ||
5680 test_bit(__I40E_CONFIG_BUSY
, &pf
->state
))
5683 /* for each VSI/netdev
5685 * set the check flag
5687 * force an interrupt
5689 for (v
= 0; v
< pf
->num_alloc_vsi
; v
++) {
5690 struct i40e_vsi
*vsi
= pf
->vsi
[v
];
5694 test_bit(__I40E_DOWN
, &vsi
->state
) ||
5695 (vsi
->netdev
&& !netif_carrier_ok(vsi
->netdev
)))
5698 for (i
= 0; i
< vsi
->num_queue_pairs
; i
++) {
5699 set_check_for_tx_hang(vsi
->tx_rings
[i
]);
5700 if (test_bit(__I40E_HANG_CHECK_ARMED
,
5701 &vsi
->tx_rings
[i
]->state
))
5706 if (!(pf
->flags
& I40E_FLAG_MSIX_ENABLED
)) {
5707 wr32(&vsi
->back
->hw
, I40E_PFINT_DYN_CTL0
,
5708 (I40E_PFINT_DYN_CTL0_INTENA_MASK
|
5709 I40E_PFINT_DYN_CTL0_SWINT_TRIG_MASK
|
5710 I40E_PFINT_DYN_CTL0_ITR_INDX_MASK
|
5711 I40E_PFINT_DYN_CTL0_SW_ITR_INDX_ENA_MASK
|
5712 I40E_PFINT_DYN_CTL0_SW_ITR_INDX_MASK
));
5714 u16 vec
= vsi
->base_vector
- 1;
5715 u32 val
= (I40E_PFINT_DYN_CTLN_INTENA_MASK
|
5716 I40E_PFINT_DYN_CTLN_SWINT_TRIG_MASK
|
5717 I40E_PFINT_DYN_CTLN_ITR_INDX_MASK
|
5718 I40E_PFINT_DYN_CTLN_SW_ITR_INDX_ENA_MASK
|
5719 I40E_PFINT_DYN_CTLN_SW_ITR_INDX_MASK
);
5720 for (i
= 0; i
< vsi
->num_q_vectors
; i
++, vec
++)
5721 wr32(&vsi
->back
->hw
,
5722 I40E_PFINT_DYN_CTLN(vec
), val
);
5724 i40e_flush(&vsi
->back
->hw
);
5730 * i40e_watchdog_subtask - periodic checks not using event driven response
5731 * @pf: board private structure
5733 static void i40e_watchdog_subtask(struct i40e_pf
*pf
)
5737 /* if interface is down do nothing */
5738 if (test_bit(__I40E_DOWN
, &pf
->state
) ||
5739 test_bit(__I40E_CONFIG_BUSY
, &pf
->state
))
5742 /* make sure we don't do these things too often */
5743 if (time_before(jiffies
, (pf
->service_timer_previous
+
5744 pf
->service_timer_period
)))
5746 pf
->service_timer_previous
= jiffies
;
5748 i40e_check_hang_subtask(pf
);
5749 i40e_link_event(pf
);
5751 /* Update the stats for active netdevs so the network stack
5752 * can look at updated numbers whenever it cares to
5754 for (i
= 0; i
< pf
->num_alloc_vsi
; i
++)
5755 if (pf
->vsi
[i
] && pf
->vsi
[i
]->netdev
)
5756 i40e_update_stats(pf
->vsi
[i
]);
5758 /* Update the stats for the active switching components */
5759 for (i
= 0; i
< I40E_MAX_VEB
; i
++)
5761 i40e_update_veb_stats(pf
->veb
[i
]);
5763 i40e_ptp_rx_hang(pf
->vsi
[pf
->lan_vsi
]);
5767 * i40e_reset_subtask - Set up for resetting the device and driver
5768 * @pf: board private structure
5770 static void i40e_reset_subtask(struct i40e_pf
*pf
)
5772 u32 reset_flags
= 0;
5775 if (test_bit(__I40E_REINIT_REQUESTED
, &pf
->state
)) {
5776 reset_flags
|= (1 << __I40E_REINIT_REQUESTED
);
5777 clear_bit(__I40E_REINIT_REQUESTED
, &pf
->state
);
5779 if (test_bit(__I40E_PF_RESET_REQUESTED
, &pf
->state
)) {
5780 reset_flags
|= (1 << __I40E_PF_RESET_REQUESTED
);
5781 clear_bit(__I40E_PF_RESET_REQUESTED
, &pf
->state
);
5783 if (test_bit(__I40E_CORE_RESET_REQUESTED
, &pf
->state
)) {
5784 reset_flags
|= (1 << __I40E_CORE_RESET_REQUESTED
);
5785 clear_bit(__I40E_CORE_RESET_REQUESTED
, &pf
->state
);
5787 if (test_bit(__I40E_GLOBAL_RESET_REQUESTED
, &pf
->state
)) {
5788 reset_flags
|= (1 << __I40E_GLOBAL_RESET_REQUESTED
);
5789 clear_bit(__I40E_GLOBAL_RESET_REQUESTED
, &pf
->state
);
5791 if (test_bit(__I40E_DOWN_REQUESTED
, &pf
->state
)) {
5792 reset_flags
|= (1 << __I40E_DOWN_REQUESTED
);
5793 clear_bit(__I40E_DOWN_REQUESTED
, &pf
->state
);
5796 /* If there's a recovery already waiting, it takes
5797 * precedence before starting a new reset sequence.
5799 if (test_bit(__I40E_RESET_INTR_RECEIVED
, &pf
->state
)) {
5800 i40e_handle_reset_warning(pf
);
5804 /* If we're already down or resetting, just bail */
5806 !test_bit(__I40E_DOWN
, &pf
->state
) &&
5807 !test_bit(__I40E_CONFIG_BUSY
, &pf
->state
))
5808 i40e_do_reset(pf
, reset_flags
);
5815 * i40e_handle_link_event - Handle link event
5816 * @pf: board private structure
5817 * @e: event info posted on ARQ
5819 static void i40e_handle_link_event(struct i40e_pf
*pf
,
5820 struct i40e_arq_event_info
*e
)
5822 struct i40e_hw
*hw
= &pf
->hw
;
5823 struct i40e_aqc_get_link_status
*status
=
5824 (struct i40e_aqc_get_link_status
*)&e
->desc
.params
.raw
;
5826 /* save off old link status information */
5827 hw
->phy
.link_info_old
= hw
->phy
.link_info
;
5829 /* Do a new status request to re-enable LSE reporting
5830 * and load new status information into the hw struct
5831 * This completely ignores any state information
5832 * in the ARQ event info, instead choosing to always
5833 * issue the AQ update link status command.
5835 i40e_link_event(pf
);
5837 /* check for unqualified module, if link is down */
5838 if ((status
->link_info
& I40E_AQ_MEDIA_AVAILABLE
) &&
5839 (!(status
->an_info
& I40E_AQ_QUALIFIED_MODULE
)) &&
5840 (!(status
->link_info
& I40E_AQ_LINK_UP
)))
5841 dev_err(&pf
->pdev
->dev
,
5842 "The driver failed to link because an unqualified module was detected.\n");
5846 * i40e_clean_adminq_subtask - Clean the AdminQ rings
5847 * @pf: board private structure
5849 static void i40e_clean_adminq_subtask(struct i40e_pf
*pf
)
5851 struct i40e_arq_event_info event
;
5852 struct i40e_hw
*hw
= &pf
->hw
;
5859 /* Do not run clean AQ when PF reset fails */
5860 if (test_bit(__I40E_RESET_FAILED
, &pf
->state
))
5863 /* check for error indications */
5864 val
= rd32(&pf
->hw
, pf
->hw
.aq
.arq
.len
);
5866 if (val
& I40E_PF_ARQLEN_ARQVFE_MASK
) {
5867 dev_info(&pf
->pdev
->dev
, "ARQ VF Error detected\n");
5868 val
&= ~I40E_PF_ARQLEN_ARQVFE_MASK
;
5870 if (val
& I40E_PF_ARQLEN_ARQOVFL_MASK
) {
5871 dev_info(&pf
->pdev
->dev
, "ARQ Overflow Error detected\n");
5872 val
&= ~I40E_PF_ARQLEN_ARQOVFL_MASK
;
5874 if (val
& I40E_PF_ARQLEN_ARQCRIT_MASK
) {
5875 dev_info(&pf
->pdev
->dev
, "ARQ Critical Error detected\n");
5876 val
&= ~I40E_PF_ARQLEN_ARQCRIT_MASK
;
5879 wr32(&pf
->hw
, pf
->hw
.aq
.arq
.len
, val
);
5881 val
= rd32(&pf
->hw
, pf
->hw
.aq
.asq
.len
);
5883 if (val
& I40E_PF_ATQLEN_ATQVFE_MASK
) {
5884 dev_info(&pf
->pdev
->dev
, "ASQ VF Error detected\n");
5885 val
&= ~I40E_PF_ATQLEN_ATQVFE_MASK
;
5887 if (val
& I40E_PF_ATQLEN_ATQOVFL_MASK
) {
5888 dev_info(&pf
->pdev
->dev
, "ASQ Overflow Error detected\n");
5889 val
&= ~I40E_PF_ATQLEN_ATQOVFL_MASK
;
5891 if (val
& I40E_PF_ATQLEN_ATQCRIT_MASK
) {
5892 dev_info(&pf
->pdev
->dev
, "ASQ Critical Error detected\n");
5893 val
&= ~I40E_PF_ATQLEN_ATQCRIT_MASK
;
5896 wr32(&pf
->hw
, pf
->hw
.aq
.asq
.len
, val
);
5898 event
.buf_len
= I40E_MAX_AQ_BUF_SIZE
;
5899 event
.msg_buf
= kzalloc(event
.buf_len
, GFP_KERNEL
);
5904 ret
= i40e_clean_arq_element(hw
, &event
, &pending
);
5905 if (ret
== I40E_ERR_ADMIN_QUEUE_NO_WORK
)
5908 dev_info(&pf
->pdev
->dev
, "ARQ event error %d\n", ret
);
5912 opcode
= le16_to_cpu(event
.desc
.opcode
);
5915 case i40e_aqc_opc_get_link_status
:
5916 i40e_handle_link_event(pf
, &event
);
5918 case i40e_aqc_opc_send_msg_to_pf
:
5919 ret
= i40e_vc_process_vf_msg(pf
,
5920 le16_to_cpu(event
.desc
.retval
),
5921 le32_to_cpu(event
.desc
.cookie_high
),
5922 le32_to_cpu(event
.desc
.cookie_low
),
5926 case i40e_aqc_opc_lldp_update_mib
:
5927 dev_dbg(&pf
->pdev
->dev
, "ARQ: Update LLDP MIB event received\n");
5928 #ifdef CONFIG_I40E_DCB
5930 ret
= i40e_handle_lldp_event(pf
, &event
);
5932 #endif /* CONFIG_I40E_DCB */
5934 case i40e_aqc_opc_event_lan_overflow
:
5935 dev_dbg(&pf
->pdev
->dev
, "ARQ LAN queue overflow event received\n");
5936 i40e_handle_lan_overflow_event(pf
, &event
);
5938 case i40e_aqc_opc_send_msg_to_peer
:
5939 dev_info(&pf
->pdev
->dev
, "ARQ: Msg from other pf\n");
5941 case i40e_aqc_opc_nvm_erase
:
5942 case i40e_aqc_opc_nvm_update
:
5943 i40e_debug(&pf
->hw
, I40E_DEBUG_NVM
, "ARQ NVM operation completed\n");
5946 dev_info(&pf
->pdev
->dev
,
5947 "ARQ Error: Unknown event 0x%04x received\n",
5951 } while (pending
&& (i
++ < pf
->adminq_work_limit
));
5953 clear_bit(__I40E_ADMINQ_EVENT_PENDING
, &pf
->state
);
5954 /* re-enable Admin queue interrupt cause */
5955 val
= rd32(hw
, I40E_PFINT_ICR0_ENA
);
5956 val
|= I40E_PFINT_ICR0_ENA_ADMINQ_MASK
;
5957 wr32(hw
, I40E_PFINT_ICR0_ENA
, val
);
5960 kfree(event
.msg_buf
);
5964 * i40e_verify_eeprom - make sure eeprom is good to use
5965 * @pf: board private structure
5967 static void i40e_verify_eeprom(struct i40e_pf
*pf
)
5971 err
= i40e_diag_eeprom_test(&pf
->hw
);
5973 /* retry in case of garbage read */
5974 err
= i40e_diag_eeprom_test(&pf
->hw
);
5976 dev_info(&pf
->pdev
->dev
, "eeprom check failed (%d), Tx/Rx traffic disabled\n",
5978 set_bit(__I40E_BAD_EEPROM
, &pf
->state
);
5982 if (!err
&& test_bit(__I40E_BAD_EEPROM
, &pf
->state
)) {
5983 dev_info(&pf
->pdev
->dev
, "eeprom check passed, Tx/Rx traffic enabled\n");
5984 clear_bit(__I40E_BAD_EEPROM
, &pf
->state
);
5989 * i40e_enable_pf_switch_lb
5990 * @pf: pointer to the PF structure
5992 * enable switch loop back or die - no point in a return value
5994 static void i40e_enable_pf_switch_lb(struct i40e_pf
*pf
)
5996 struct i40e_vsi
*vsi
= pf
->vsi
[pf
->lan_vsi
];
5997 struct i40e_vsi_context ctxt
;
6000 ctxt
.seid
= pf
->main_vsi_seid
;
6001 ctxt
.pf_num
= pf
->hw
.pf_id
;
6003 aq_ret
= i40e_aq_get_vsi_params(&pf
->hw
, &ctxt
, NULL
);
6005 dev_info(&pf
->pdev
->dev
,
6006 "%s couldn't get PF vsi config, err %d, aq_err %d\n",
6007 __func__
, aq_ret
, pf
->hw
.aq
.asq_last_status
);
6010 ctxt
.flags
= I40E_AQ_VSI_TYPE_PF
;
6011 ctxt
.info
.valid_sections
= cpu_to_le16(I40E_AQ_VSI_PROP_SWITCH_VALID
);
6012 ctxt
.info
.switch_id
|= cpu_to_le16(I40E_AQ_VSI_SW_ID_FLAG_ALLOW_LB
);
6014 aq_ret
= i40e_aq_update_vsi_params(&vsi
->back
->hw
, &ctxt
, NULL
);
6016 dev_info(&pf
->pdev
->dev
,
6017 "%s: update vsi switch failed, aq_err=%d\n",
6018 __func__
, vsi
->back
->hw
.aq
.asq_last_status
);
6023 * i40e_disable_pf_switch_lb
6024 * @pf: pointer to the PF structure
6026 * disable switch loop back or die - no point in a return value
6028 static void i40e_disable_pf_switch_lb(struct i40e_pf
*pf
)
6030 struct i40e_vsi
*vsi
= pf
->vsi
[pf
->lan_vsi
];
6031 struct i40e_vsi_context ctxt
;
6034 ctxt
.seid
= pf
->main_vsi_seid
;
6035 ctxt
.pf_num
= pf
->hw
.pf_id
;
6037 aq_ret
= i40e_aq_get_vsi_params(&pf
->hw
, &ctxt
, NULL
);
6039 dev_info(&pf
->pdev
->dev
,
6040 "%s couldn't get PF vsi config, err %d, aq_err %d\n",
6041 __func__
, aq_ret
, pf
->hw
.aq
.asq_last_status
);
6044 ctxt
.flags
= I40E_AQ_VSI_TYPE_PF
;
6045 ctxt
.info
.valid_sections
= cpu_to_le16(I40E_AQ_VSI_PROP_SWITCH_VALID
);
6046 ctxt
.info
.switch_id
&= ~cpu_to_le16(I40E_AQ_VSI_SW_ID_FLAG_ALLOW_LB
);
6048 aq_ret
= i40e_aq_update_vsi_params(&vsi
->back
->hw
, &ctxt
, NULL
);
6050 dev_info(&pf
->pdev
->dev
,
6051 "%s: update vsi switch failed, aq_err=%d\n",
6052 __func__
, vsi
->back
->hw
.aq
.asq_last_status
);
6057 * i40e_config_bridge_mode - Configure the HW bridge mode
6058 * @veb: pointer to the bridge instance
6060 * Configure the loop back mode for the LAN VSI that is downlink to the
6061 * specified HW bridge instance. It is expected this function is called
6062 * when a new HW bridge is instantiated.
6064 static void i40e_config_bridge_mode(struct i40e_veb
*veb
)
6066 struct i40e_pf
*pf
= veb
->pf
;
6068 dev_info(&pf
->pdev
->dev
, "enabling bridge mode: %s\n",
6069 veb
->bridge_mode
== BRIDGE_MODE_VEPA
? "VEPA" : "VEB");
6070 if (veb
->bridge_mode
& BRIDGE_MODE_VEPA
)
6071 i40e_disable_pf_switch_lb(pf
);
6073 i40e_enable_pf_switch_lb(pf
);
6077 * i40e_reconstitute_veb - rebuild the VEB and anything connected to it
6078 * @veb: pointer to the VEB instance
6080 * This is a recursive function that first builds the attached VSIs then
6081 * recurses in to build the next layer of VEB. We track the connections
6082 * through our own index numbers because the seid's from the HW could
6083 * change across the reset.
6085 static int i40e_reconstitute_veb(struct i40e_veb
*veb
)
6087 struct i40e_vsi
*ctl_vsi
= NULL
;
6088 struct i40e_pf
*pf
= veb
->pf
;
6092 /* build VSI that owns this VEB, temporarily attached to base VEB */
6093 for (v
= 0; v
< pf
->num_alloc_vsi
&& !ctl_vsi
; v
++) {
6095 pf
->vsi
[v
]->veb_idx
== veb
->idx
&&
6096 pf
->vsi
[v
]->flags
& I40E_VSI_FLAG_VEB_OWNER
) {
6097 ctl_vsi
= pf
->vsi
[v
];
6102 dev_info(&pf
->pdev
->dev
,
6103 "missing owner VSI for veb_idx %d\n", veb
->idx
);
6105 goto end_reconstitute
;
6107 if (ctl_vsi
!= pf
->vsi
[pf
->lan_vsi
])
6108 ctl_vsi
->uplink_seid
= pf
->vsi
[pf
->lan_vsi
]->uplink_seid
;
6109 ret
= i40e_add_vsi(ctl_vsi
);
6111 dev_info(&pf
->pdev
->dev
,
6112 "rebuild of owner VSI failed: %d\n", ret
);
6113 goto end_reconstitute
;
6115 i40e_vsi_reset_stats(ctl_vsi
);
6117 /* create the VEB in the switch and move the VSI onto the VEB */
6118 ret
= i40e_add_veb(veb
, ctl_vsi
);
6120 goto end_reconstitute
;
6122 if (pf
->flags
& I40E_FLAG_VEB_MODE_ENABLED
)
6123 veb
->bridge_mode
= BRIDGE_MODE_VEB
;
6125 veb
->bridge_mode
= BRIDGE_MODE_VEPA
;
6126 i40e_config_bridge_mode(veb
);
6128 /* create the remaining VSIs attached to this VEB */
6129 for (v
= 0; v
< pf
->num_alloc_vsi
; v
++) {
6130 if (!pf
->vsi
[v
] || pf
->vsi
[v
] == ctl_vsi
)
6133 if (pf
->vsi
[v
]->veb_idx
== veb
->idx
) {
6134 struct i40e_vsi
*vsi
= pf
->vsi
[v
];
6135 vsi
->uplink_seid
= veb
->seid
;
6136 ret
= i40e_add_vsi(vsi
);
6138 dev_info(&pf
->pdev
->dev
,
6139 "rebuild of vsi_idx %d failed: %d\n",
6141 goto end_reconstitute
;
6143 i40e_vsi_reset_stats(vsi
);
6147 /* create any VEBs attached to this VEB - RECURSION */
6148 for (veb_idx
= 0; veb_idx
< I40E_MAX_VEB
; veb_idx
++) {
6149 if (pf
->veb
[veb_idx
] && pf
->veb
[veb_idx
]->veb_idx
== veb
->idx
) {
6150 pf
->veb
[veb_idx
]->uplink_seid
= veb
->seid
;
6151 ret
= i40e_reconstitute_veb(pf
->veb
[veb_idx
]);
6162 * i40e_get_capabilities - get info about the HW
6163 * @pf: the PF struct
6165 static int i40e_get_capabilities(struct i40e_pf
*pf
)
6167 struct i40e_aqc_list_capabilities_element_resp
*cap_buf
;
6172 buf_len
= 40 * sizeof(struct i40e_aqc_list_capabilities_element_resp
);
6174 cap_buf
= kzalloc(buf_len
, GFP_KERNEL
);
6178 /* this loads the data into the hw struct for us */
6179 err
= i40e_aq_discover_capabilities(&pf
->hw
, cap_buf
, buf_len
,
6181 i40e_aqc_opc_list_func_capabilities
,
6183 /* data loaded, buffer no longer needed */
6186 if (pf
->hw
.aq
.asq_last_status
== I40E_AQ_RC_ENOMEM
) {
6187 /* retry with a larger buffer */
6188 buf_len
= data_size
;
6189 } else if (pf
->hw
.aq
.asq_last_status
!= I40E_AQ_RC_OK
) {
6190 dev_info(&pf
->pdev
->dev
,
6191 "capability discovery failed: aq=%d\n",
6192 pf
->hw
.aq
.asq_last_status
);
6197 if (((pf
->hw
.aq
.fw_maj_ver
== 2) && (pf
->hw
.aq
.fw_min_ver
< 22)) ||
6198 (pf
->hw
.aq
.fw_maj_ver
< 2)) {
6199 pf
->hw
.func_caps
.num_msix_vectors
++;
6200 pf
->hw
.func_caps
.num_msix_vectors_vf
++;
6203 if (pf
->hw
.debug_mask
& I40E_DEBUG_USER
)
6204 dev_info(&pf
->pdev
->dev
,
6205 "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",
6206 pf
->hw
.pf_id
, pf
->hw
.func_caps
.num_vfs
,
6207 pf
->hw
.func_caps
.num_msix_vectors
,
6208 pf
->hw
.func_caps
.num_msix_vectors_vf
,
6209 pf
->hw
.func_caps
.fd_filters_guaranteed
,
6210 pf
->hw
.func_caps
.fd_filters_best_effort
,
6211 pf
->hw
.func_caps
.num_tx_qp
,
6212 pf
->hw
.func_caps
.num_vsis
);
6214 #define DEF_NUM_VSI (1 + (pf->hw.func_caps.fcoe ? 1 : 0) \
6215 + pf->hw.func_caps.num_vfs)
6216 if (pf
->hw
.revision_id
== 0 && (DEF_NUM_VSI
> pf
->hw
.func_caps
.num_vsis
)) {
6217 dev_info(&pf
->pdev
->dev
,
6218 "got num_vsis %d, setting num_vsis to %d\n",
6219 pf
->hw
.func_caps
.num_vsis
, DEF_NUM_VSI
);
6220 pf
->hw
.func_caps
.num_vsis
= DEF_NUM_VSI
;
6226 static int i40e_vsi_clear(struct i40e_vsi
*vsi
);
6229 * i40e_fdir_sb_setup - initialize the Flow Director resources for Sideband
6230 * @pf: board private structure
6232 static void i40e_fdir_sb_setup(struct i40e_pf
*pf
)
6234 struct i40e_vsi
*vsi
;
6237 /* quick workaround for an NVM issue that leaves a critical register
6240 if (!rd32(&pf
->hw
, I40E_GLQF_HKEY(0))) {
6241 static const u32 hkey
[] = {
6242 0xe640d33f, 0xcdfe98ab, 0x73fa7161, 0x0d7a7d36,
6243 0xeacb7d61, 0xaa4f05b6, 0x9c5c89ed, 0xfc425ddb,
6244 0xa4654832, 0xfc7461d4, 0x8f827619, 0xf5c63c21,
6247 for (i
= 0; i
<= I40E_GLQF_HKEY_MAX_INDEX
; i
++)
6248 wr32(&pf
->hw
, I40E_GLQF_HKEY(i
), hkey
[i
]);
6251 if (!(pf
->flags
& I40E_FLAG_FD_SB_ENABLED
))
6254 /* find existing VSI and see if it needs configuring */
6256 for (i
= 0; i
< pf
->num_alloc_vsi
; i
++) {
6257 if (pf
->vsi
[i
] && pf
->vsi
[i
]->type
== I40E_VSI_FDIR
) {
6263 /* create a new VSI if none exists */
6265 vsi
= i40e_vsi_setup(pf
, I40E_VSI_FDIR
,
6266 pf
->vsi
[pf
->lan_vsi
]->seid
, 0);
6268 dev_info(&pf
->pdev
->dev
, "Couldn't create FDir VSI\n");
6269 pf
->flags
&= ~I40E_FLAG_FD_SB_ENABLED
;
6274 i40e_vsi_setup_irqhandler(vsi
, i40e_fdir_clean_ring
);
6278 * i40e_fdir_teardown - release the Flow Director resources
6279 * @pf: board private structure
6281 static void i40e_fdir_teardown(struct i40e_pf
*pf
)
6285 i40e_fdir_filter_exit(pf
);
6286 for (i
= 0; i
< pf
->num_alloc_vsi
; i
++) {
6287 if (pf
->vsi
[i
] && pf
->vsi
[i
]->type
== I40E_VSI_FDIR
) {
6288 i40e_vsi_release(pf
->vsi
[i
]);
6295 * i40e_prep_for_reset - prep for the core to reset
6296 * @pf: board private structure
6298 * Close up the VFs and other things in prep for PF Reset.
6300 static void i40e_prep_for_reset(struct i40e_pf
*pf
)
6302 struct i40e_hw
*hw
= &pf
->hw
;
6303 i40e_status ret
= 0;
6306 clear_bit(__I40E_RESET_INTR_RECEIVED
, &pf
->state
);
6307 if (test_and_set_bit(__I40E_RESET_RECOVERY_PENDING
, &pf
->state
))
6310 dev_dbg(&pf
->pdev
->dev
, "Tearing down internal switch for reset\n");
6312 /* quiesce the VSIs and their queues that are not already DOWN */
6313 i40e_pf_quiesce_all_vsi(pf
);
6315 for (v
= 0; v
< pf
->num_alloc_vsi
; v
++) {
6317 pf
->vsi
[v
]->seid
= 0;
6320 i40e_shutdown_adminq(&pf
->hw
);
6322 /* call shutdown HMC */
6323 if (hw
->hmc
.hmc_obj
) {
6324 ret
= i40e_shutdown_lan_hmc(hw
);
6326 dev_warn(&pf
->pdev
->dev
,
6327 "shutdown_lan_hmc failed: %d\n", ret
);
6332 * i40e_send_version - update firmware with driver version
6335 static void i40e_send_version(struct i40e_pf
*pf
)
6337 struct i40e_driver_version dv
;
6339 dv
.major_version
= DRV_VERSION_MAJOR
;
6340 dv
.minor_version
= DRV_VERSION_MINOR
;
6341 dv
.build_version
= DRV_VERSION_BUILD
;
6342 dv
.subbuild_version
= 0;
6343 strlcpy(dv
.driver_string
, DRV_VERSION
, sizeof(dv
.driver_string
));
6344 i40e_aq_send_driver_version(&pf
->hw
, &dv
, NULL
);
6348 * i40e_reset_and_rebuild - reset and rebuild using a saved config
6349 * @pf: board private structure
6350 * @reinit: if the Main VSI needs to re-initialized.
6352 static void i40e_reset_and_rebuild(struct i40e_pf
*pf
, bool reinit
)
6354 struct i40e_hw
*hw
= &pf
->hw
;
6355 u8 set_fc_aq_fail
= 0;
6359 /* Now we wait for GRST to settle out.
6360 * We don't have to delete the VEBs or VSIs from the hw switch
6361 * because the reset will make them disappear.
6363 ret
= i40e_pf_reset(hw
);
6365 dev_info(&pf
->pdev
->dev
, "PF reset failed, %d\n", ret
);
6366 set_bit(__I40E_RESET_FAILED
, &pf
->state
);
6367 goto clear_recovery
;
6371 if (test_bit(__I40E_DOWN
, &pf
->state
))
6372 goto clear_recovery
;
6373 dev_dbg(&pf
->pdev
->dev
, "Rebuilding internal switch\n");
6375 /* rebuild the basics for the AdminQ, HMC, and initial HW switch */
6376 ret
= i40e_init_adminq(&pf
->hw
);
6378 dev_info(&pf
->pdev
->dev
, "Rebuild AdminQ failed, %d\n", ret
);
6379 goto clear_recovery
;
6382 /* re-verify the eeprom if we just had an EMP reset */
6383 if (test_and_clear_bit(__I40E_EMP_RESET_INTR_RECEIVED
, &pf
->state
))
6384 i40e_verify_eeprom(pf
);
6386 i40e_clear_pxe_mode(hw
);
6387 ret
= i40e_get_capabilities(pf
);
6389 dev_info(&pf
->pdev
->dev
, "i40e_get_capabilities failed, %d\n",
6391 goto end_core_reset
;
6394 ret
= i40e_init_lan_hmc(hw
, hw
->func_caps
.num_tx_qp
,
6395 hw
->func_caps
.num_rx_qp
,
6396 pf
->fcoe_hmc_cntx_num
, pf
->fcoe_hmc_filt_num
);
6398 dev_info(&pf
->pdev
->dev
, "init_lan_hmc failed: %d\n", ret
);
6399 goto end_core_reset
;
6401 ret
= i40e_configure_lan_hmc(hw
, I40E_HMC_MODEL_DIRECT_ONLY
);
6403 dev_info(&pf
->pdev
->dev
, "configure_lan_hmc failed: %d\n", ret
);
6404 goto end_core_reset
;
6407 #ifdef CONFIG_I40E_DCB
6408 ret
= i40e_init_pf_dcb(pf
);
6410 dev_info(&pf
->pdev
->dev
, "DCB init failed %d, disabled\n", ret
);
6411 pf
->flags
&= ~I40E_FLAG_DCB_CAPABLE
;
6412 /* Continue without DCB enabled */
6414 #endif /* CONFIG_I40E_DCB */
6416 ret
= i40e_init_pf_fcoe(pf
);
6418 dev_info(&pf
->pdev
->dev
, "init_pf_fcoe failed: %d\n", ret
);
6421 /* do basic switch setup */
6422 ret
= i40e_setup_pf_switch(pf
, reinit
);
6424 goto end_core_reset
;
6426 /* driver is only interested in link up/down and module qualification
6427 * reports from firmware
6429 ret
= i40e_aq_set_phy_int_mask(&pf
->hw
,
6430 I40E_AQ_EVENT_LINK_UPDOWN
|
6431 I40E_AQ_EVENT_MODULE_QUAL_FAIL
, NULL
);
6433 dev_info(&pf
->pdev
->dev
, "set phy mask fail, aq_err %d\n", ret
);
6435 /* make sure our flow control settings are restored */
6436 ret
= i40e_set_fc(&pf
->hw
, &set_fc_aq_fail
, true);
6438 dev_info(&pf
->pdev
->dev
, "set fc fail, aq_err %d\n", ret
);
6440 /* Rebuild the VSIs and VEBs that existed before reset.
6441 * They are still in our local switch element arrays, so only
6442 * need to rebuild the switch model in the HW.
6444 * If there were VEBs but the reconstitution failed, we'll try
6445 * try to recover minimal use by getting the basic PF VSI working.
6447 if (pf
->vsi
[pf
->lan_vsi
]->uplink_seid
!= pf
->mac_seid
) {
6448 dev_dbg(&pf
->pdev
->dev
, "attempting to rebuild switch\n");
6449 /* find the one VEB connected to the MAC, and find orphans */
6450 for (v
= 0; v
< I40E_MAX_VEB
; v
++) {
6454 if (pf
->veb
[v
]->uplink_seid
== pf
->mac_seid
||
6455 pf
->veb
[v
]->uplink_seid
== 0) {
6456 ret
= i40e_reconstitute_veb(pf
->veb
[v
]);
6461 /* If Main VEB failed, we're in deep doodoo,
6462 * so give up rebuilding the switch and set up
6463 * for minimal rebuild of PF VSI.
6464 * If orphan failed, we'll report the error
6465 * but try to keep going.
6467 if (pf
->veb
[v
]->uplink_seid
== pf
->mac_seid
) {
6468 dev_info(&pf
->pdev
->dev
,
6469 "rebuild of switch failed: %d, will try to set up simple PF connection\n",
6471 pf
->vsi
[pf
->lan_vsi
]->uplink_seid
6474 } else if (pf
->veb
[v
]->uplink_seid
== 0) {
6475 dev_info(&pf
->pdev
->dev
,
6476 "rebuild of orphan VEB failed: %d\n",
6483 if (pf
->vsi
[pf
->lan_vsi
]->uplink_seid
== pf
->mac_seid
) {
6484 dev_dbg(&pf
->pdev
->dev
, "attempting to rebuild PF VSI\n");
6485 /* no VEB, so rebuild only the Main VSI */
6486 ret
= i40e_add_vsi(pf
->vsi
[pf
->lan_vsi
]);
6488 dev_info(&pf
->pdev
->dev
,
6489 "rebuild of Main VSI failed: %d\n", ret
);
6490 goto end_core_reset
;
6494 if (((pf
->hw
.aq
.fw_maj_ver
== 4) && (pf
->hw
.aq
.fw_min_ver
< 33)) ||
6495 (pf
->hw
.aq
.fw_maj_ver
< 4)) {
6497 ret
= i40e_aq_set_link_restart_an(&pf
->hw
, true, NULL
);
6499 dev_info(&pf
->pdev
->dev
, "link restart failed, aq_err=%d\n",
6500 pf
->hw
.aq
.asq_last_status
);
6502 /* reinit the misc interrupt */
6503 if (pf
->flags
& I40E_FLAG_MSIX_ENABLED
)
6504 ret
= i40e_setup_misc_vector(pf
);
6506 /* restart the VSIs that were rebuilt and running before the reset */
6507 i40e_pf_unquiesce_all_vsi(pf
);
6509 if (pf
->num_alloc_vfs
) {
6510 for (v
= 0; v
< pf
->num_alloc_vfs
; v
++)
6511 i40e_reset_vf(&pf
->vf
[v
], true);
6514 /* tell the firmware that we're starting */
6515 i40e_send_version(pf
);
6518 clear_bit(__I40E_RESET_FAILED
, &pf
->state
);
6520 clear_bit(__I40E_RESET_RECOVERY_PENDING
, &pf
->state
);
6524 * i40e_handle_reset_warning - prep for the PF to reset, reset and rebuild
6525 * @pf: board private structure
6527 * Close up the VFs and other things in prep for a Core Reset,
6528 * then get ready to rebuild the world.
6530 static void i40e_handle_reset_warning(struct i40e_pf
*pf
)
6532 i40e_prep_for_reset(pf
);
6533 i40e_reset_and_rebuild(pf
, false);
6537 * i40e_handle_mdd_event
6538 * @pf: pointer to the PF structure
6540 * Called from the MDD irq handler to identify possibly malicious vfs
6542 static void i40e_handle_mdd_event(struct i40e_pf
*pf
)
6544 struct i40e_hw
*hw
= &pf
->hw
;
6545 bool mdd_detected
= false;
6546 bool pf_mdd_detected
= false;
6551 if (!test_bit(__I40E_MDD_EVENT_PENDING
, &pf
->state
))
6554 /* find what triggered the MDD event */
6555 reg
= rd32(hw
, I40E_GL_MDET_TX
);
6556 if (reg
& I40E_GL_MDET_TX_VALID_MASK
) {
6557 u8 pf_num
= (reg
& I40E_GL_MDET_TX_PF_NUM_MASK
) >>
6558 I40E_GL_MDET_TX_PF_NUM_SHIFT
;
6559 u16 vf_num
= (reg
& I40E_GL_MDET_TX_VF_NUM_MASK
) >>
6560 I40E_GL_MDET_TX_VF_NUM_SHIFT
;
6561 u8 event
= (reg
& I40E_GL_MDET_TX_EVENT_MASK
) >>
6562 I40E_GL_MDET_TX_EVENT_SHIFT
;
6563 u16 queue
= ((reg
& I40E_GL_MDET_TX_QUEUE_MASK
) >>
6564 I40E_GL_MDET_TX_QUEUE_SHIFT
) -
6565 pf
->hw
.func_caps
.base_queue
;
6566 if (netif_msg_tx_err(pf
))
6567 dev_info(&pf
->pdev
->dev
, "Malicious Driver Detection event 0x%02x on TX queue %d PF number 0x%02x VF number 0x%02x\n",
6568 event
, queue
, pf_num
, vf_num
);
6569 wr32(hw
, I40E_GL_MDET_TX
, 0xffffffff);
6570 mdd_detected
= true;
6572 reg
= rd32(hw
, I40E_GL_MDET_RX
);
6573 if (reg
& I40E_GL_MDET_RX_VALID_MASK
) {
6574 u8 func
= (reg
& I40E_GL_MDET_RX_FUNCTION_MASK
) >>
6575 I40E_GL_MDET_RX_FUNCTION_SHIFT
;
6576 u8 event
= (reg
& I40E_GL_MDET_RX_EVENT_MASK
) >>
6577 I40E_GL_MDET_RX_EVENT_SHIFT
;
6578 u16 queue
= ((reg
& I40E_GL_MDET_RX_QUEUE_MASK
) >>
6579 I40E_GL_MDET_RX_QUEUE_SHIFT
) -
6580 pf
->hw
.func_caps
.base_queue
;
6581 if (netif_msg_rx_err(pf
))
6582 dev_info(&pf
->pdev
->dev
, "Malicious Driver Detection event 0x%02x on RX queue %d of function 0x%02x\n",
6583 event
, queue
, func
);
6584 wr32(hw
, I40E_GL_MDET_RX
, 0xffffffff);
6585 mdd_detected
= true;
6589 reg
= rd32(hw
, I40E_PF_MDET_TX
);
6590 if (reg
& I40E_PF_MDET_TX_VALID_MASK
) {
6591 wr32(hw
, I40E_PF_MDET_TX
, 0xFFFF);
6592 dev_info(&pf
->pdev
->dev
, "TX driver issue detected, PF reset issued\n");
6593 pf_mdd_detected
= true;
6595 reg
= rd32(hw
, I40E_PF_MDET_RX
);
6596 if (reg
& I40E_PF_MDET_RX_VALID_MASK
) {
6597 wr32(hw
, I40E_PF_MDET_RX
, 0xFFFF);
6598 dev_info(&pf
->pdev
->dev
, "RX driver issue detected, PF reset issued\n");
6599 pf_mdd_detected
= true;
6601 /* Queue belongs to the PF, initiate a reset */
6602 if (pf_mdd_detected
) {
6603 set_bit(__I40E_PF_RESET_REQUESTED
, &pf
->state
);
6604 i40e_service_event_schedule(pf
);
6608 /* see if one of the VFs needs its hand slapped */
6609 for (i
= 0; i
< pf
->num_alloc_vfs
&& mdd_detected
; i
++) {
6611 reg
= rd32(hw
, I40E_VP_MDET_TX(i
));
6612 if (reg
& I40E_VP_MDET_TX_VALID_MASK
) {
6613 wr32(hw
, I40E_VP_MDET_TX(i
), 0xFFFF);
6614 vf
->num_mdd_events
++;
6615 dev_info(&pf
->pdev
->dev
, "TX driver issue detected on VF %d\n",
6619 reg
= rd32(hw
, I40E_VP_MDET_RX(i
));
6620 if (reg
& I40E_VP_MDET_RX_VALID_MASK
) {
6621 wr32(hw
, I40E_VP_MDET_RX(i
), 0xFFFF);
6622 vf
->num_mdd_events
++;
6623 dev_info(&pf
->pdev
->dev
, "RX driver issue detected on VF %d\n",
6627 if (vf
->num_mdd_events
> I40E_DEFAULT_NUM_MDD_EVENTS_ALLOWED
) {
6628 dev_info(&pf
->pdev
->dev
,
6629 "Too many MDD events on VF %d, disabled\n", i
);
6630 dev_info(&pf
->pdev
->dev
,
6631 "Use PF Control I/F to re-enable the VF\n");
6632 set_bit(I40E_VF_STAT_DISABLED
, &vf
->vf_states
);
6636 /* re-enable mdd interrupt cause */
6637 clear_bit(__I40E_MDD_EVENT_PENDING
, &pf
->state
);
6638 reg
= rd32(hw
, I40E_PFINT_ICR0_ENA
);
6639 reg
|= I40E_PFINT_ICR0_ENA_MAL_DETECT_MASK
;
6640 wr32(hw
, I40E_PFINT_ICR0_ENA
, reg
);
6644 #ifdef CONFIG_I40E_VXLAN
6646 * i40e_sync_vxlan_filters_subtask - Sync the VSI filter list with HW
6647 * @pf: board private structure
6649 static void i40e_sync_vxlan_filters_subtask(struct i40e_pf
*pf
)
6651 struct i40e_hw
*hw
= &pf
->hw
;
6656 if (!(pf
->flags
& I40E_FLAG_VXLAN_FILTER_SYNC
))
6659 pf
->flags
&= ~I40E_FLAG_VXLAN_FILTER_SYNC
;
6661 for (i
= 0; i
< I40E_MAX_PF_UDP_OFFLOAD_PORTS
; i
++) {
6662 if (pf
->pending_vxlan_bitmap
& (1 << i
)) {
6663 pf
->pending_vxlan_bitmap
&= ~(1 << i
);
6664 port
= pf
->vxlan_ports
[i
];
6666 ret
= i40e_aq_add_udp_tunnel(hw
, ntohs(port
),
6667 I40E_AQC_TUNNEL_TYPE_VXLAN
,
6670 ret
= i40e_aq_del_udp_tunnel(hw
, i
, NULL
);
6673 dev_info(&pf
->pdev
->dev
,
6674 "%s vxlan port %d, index %d failed, err %d, aq_err %d\n",
6675 port
? "add" : "delete",
6676 ntohs(port
), i
, ret
,
6677 pf
->hw
.aq
.asq_last_status
);
6678 pf
->vxlan_ports
[i
] = 0;
6686 * i40e_service_task - Run the driver's async subtasks
6687 * @work: pointer to work_struct containing our data
6689 static void i40e_service_task(struct work_struct
*work
)
6691 struct i40e_pf
*pf
= container_of(work
,
6694 unsigned long start_time
= jiffies
;
6696 /* don't bother with service tasks if a reset is in progress */
6697 if (test_bit(__I40E_RESET_RECOVERY_PENDING
, &pf
->state
)) {
6698 i40e_service_event_complete(pf
);
6702 i40e_reset_subtask(pf
);
6703 i40e_handle_mdd_event(pf
);
6704 i40e_vc_process_vflr_event(pf
);
6705 i40e_watchdog_subtask(pf
);
6706 i40e_fdir_reinit_subtask(pf
);
6707 i40e_sync_filters_subtask(pf
);
6708 #ifdef CONFIG_I40E_VXLAN
6709 i40e_sync_vxlan_filters_subtask(pf
);
6711 i40e_clean_adminq_subtask(pf
);
6713 i40e_service_event_complete(pf
);
6715 /* If the tasks have taken longer than one timer cycle or there
6716 * is more work to be done, reschedule the service task now
6717 * rather than wait for the timer to tick again.
6719 if (time_after(jiffies
, (start_time
+ pf
->service_timer_period
)) ||
6720 test_bit(__I40E_ADMINQ_EVENT_PENDING
, &pf
->state
) ||
6721 test_bit(__I40E_MDD_EVENT_PENDING
, &pf
->state
) ||
6722 test_bit(__I40E_VFLR_EVENT_PENDING
, &pf
->state
))
6723 i40e_service_event_schedule(pf
);
6727 * i40e_service_timer - timer callback
6728 * @data: pointer to PF struct
6730 static void i40e_service_timer(unsigned long data
)
6732 struct i40e_pf
*pf
= (struct i40e_pf
*)data
;
6734 mod_timer(&pf
->service_timer
,
6735 round_jiffies(jiffies
+ pf
->service_timer_period
));
6736 i40e_service_event_schedule(pf
);
6740 * i40e_set_num_rings_in_vsi - Determine number of rings in the VSI
6741 * @vsi: the VSI being configured
6743 static int i40e_set_num_rings_in_vsi(struct i40e_vsi
*vsi
)
6745 struct i40e_pf
*pf
= vsi
->back
;
6747 switch (vsi
->type
) {
6749 vsi
->alloc_queue_pairs
= pf
->num_lan_qps
;
6750 vsi
->num_desc
= ALIGN(I40E_DEFAULT_NUM_DESCRIPTORS
,
6751 I40E_REQ_DESCRIPTOR_MULTIPLE
);
6752 if (pf
->flags
& I40E_FLAG_MSIX_ENABLED
)
6753 vsi
->num_q_vectors
= pf
->num_lan_msix
;
6755 vsi
->num_q_vectors
= 1;
6760 vsi
->alloc_queue_pairs
= 1;
6761 vsi
->num_desc
= ALIGN(I40E_FDIR_RING_COUNT
,
6762 I40E_REQ_DESCRIPTOR_MULTIPLE
);
6763 vsi
->num_q_vectors
= 1;
6766 case I40E_VSI_VMDQ2
:
6767 vsi
->alloc_queue_pairs
= pf
->num_vmdq_qps
;
6768 vsi
->num_desc
= ALIGN(I40E_DEFAULT_NUM_DESCRIPTORS
,
6769 I40E_REQ_DESCRIPTOR_MULTIPLE
);
6770 vsi
->num_q_vectors
= pf
->num_vmdq_msix
;
6773 case I40E_VSI_SRIOV
:
6774 vsi
->alloc_queue_pairs
= pf
->num_vf_qps
;
6775 vsi
->num_desc
= ALIGN(I40E_DEFAULT_NUM_DESCRIPTORS
,
6776 I40E_REQ_DESCRIPTOR_MULTIPLE
);
6781 vsi
->alloc_queue_pairs
= pf
->num_fcoe_qps
;
6782 vsi
->num_desc
= ALIGN(I40E_DEFAULT_NUM_DESCRIPTORS
,
6783 I40E_REQ_DESCRIPTOR_MULTIPLE
);
6784 vsi
->num_q_vectors
= pf
->num_fcoe_msix
;
6787 #endif /* I40E_FCOE */
6797 * i40e_vsi_alloc_arrays - Allocate queue and vector pointer arrays for the vsi
6798 * @type: VSI pointer
6799 * @alloc_qvectors: a bool to specify if q_vectors need to be allocated.
6801 * On error: returns error code (negative)
6802 * On success: returns 0
6804 static int i40e_vsi_alloc_arrays(struct i40e_vsi
*vsi
, bool alloc_qvectors
)
6809 /* allocate memory for both Tx and Rx ring pointers */
6810 size
= sizeof(struct i40e_ring
*) * vsi
->alloc_queue_pairs
* 2;
6811 vsi
->tx_rings
= kzalloc(size
, GFP_KERNEL
);
6814 vsi
->rx_rings
= &vsi
->tx_rings
[vsi
->alloc_queue_pairs
];
6816 if (alloc_qvectors
) {
6817 /* allocate memory for q_vector pointers */
6818 size
= sizeof(struct i40e_q_vector
*) * vsi
->num_q_vectors
;
6819 vsi
->q_vectors
= kzalloc(size
, GFP_KERNEL
);
6820 if (!vsi
->q_vectors
) {
6828 kfree(vsi
->tx_rings
);
6833 * i40e_vsi_mem_alloc - Allocates the next available struct vsi in the PF
6834 * @pf: board private structure
6835 * @type: type of VSI
6837 * On error: returns error code (negative)
6838 * On success: returns vsi index in PF (positive)
6840 static int i40e_vsi_mem_alloc(struct i40e_pf
*pf
, enum i40e_vsi_type type
)
6843 struct i40e_vsi
*vsi
;
6847 /* Need to protect the allocation of the VSIs at the PF level */
6848 mutex_lock(&pf
->switch_mutex
);
6850 /* VSI list may be fragmented if VSI creation/destruction has
6851 * been happening. We can afford to do a quick scan to look
6852 * for any free VSIs in the list.
6854 * find next empty vsi slot, looping back around if necessary
6857 while (i
< pf
->num_alloc_vsi
&& pf
->vsi
[i
])
6859 if (i
>= pf
->num_alloc_vsi
) {
6861 while (i
< pf
->next_vsi
&& pf
->vsi
[i
])
6865 if (i
< pf
->num_alloc_vsi
&& !pf
->vsi
[i
]) {
6866 vsi_idx
= i
; /* Found one! */
6869 goto unlock_pf
; /* out of VSI slots! */
6873 vsi
= kzalloc(sizeof(*vsi
), GFP_KERNEL
);
6880 set_bit(__I40E_DOWN
, &vsi
->state
);
6883 vsi
->rx_itr_setting
= pf
->rx_itr_default
;
6884 vsi
->tx_itr_setting
= pf
->tx_itr_default
;
6885 vsi
->rss_table_size
= (vsi
->type
== I40E_VSI_MAIN
) ?
6886 pf
->rss_table_size
: 64;
6887 vsi
->netdev_registered
= false;
6888 vsi
->work_limit
= I40E_DEFAULT_IRQ_WORK
;
6889 INIT_LIST_HEAD(&vsi
->mac_filter_list
);
6890 vsi
->irqs_ready
= false;
6892 ret
= i40e_set_num_rings_in_vsi(vsi
);
6896 ret
= i40e_vsi_alloc_arrays(vsi
, true);
6900 /* Setup default MSIX irq handler for VSI */
6901 i40e_vsi_setup_irqhandler(vsi
, i40e_msix_clean_rings
);
6903 pf
->vsi
[vsi_idx
] = vsi
;
6908 pf
->next_vsi
= i
- 1;
6911 mutex_unlock(&pf
->switch_mutex
);
6916 * i40e_vsi_free_arrays - Free queue and vector pointer arrays for the VSI
6917 * @type: VSI pointer
6918 * @free_qvectors: a bool to specify if q_vectors need to be freed.
6920 * On error: returns error code (negative)
6921 * On success: returns 0
6923 static void i40e_vsi_free_arrays(struct i40e_vsi
*vsi
, bool free_qvectors
)
6925 /* free the ring and vector containers */
6926 if (free_qvectors
) {
6927 kfree(vsi
->q_vectors
);
6928 vsi
->q_vectors
= NULL
;
6930 kfree(vsi
->tx_rings
);
6931 vsi
->tx_rings
= NULL
;
6932 vsi
->rx_rings
= NULL
;
6936 * i40e_vsi_clear - Deallocate the VSI provided
6937 * @vsi: the VSI being un-configured
6939 static int i40e_vsi_clear(struct i40e_vsi
*vsi
)
6950 mutex_lock(&pf
->switch_mutex
);
6951 if (!pf
->vsi
[vsi
->idx
]) {
6952 dev_err(&pf
->pdev
->dev
, "pf->vsi[%d] is NULL, just free vsi[%d](%p,type %d)\n",
6953 vsi
->idx
, vsi
->idx
, vsi
, vsi
->type
);
6957 if (pf
->vsi
[vsi
->idx
] != vsi
) {
6958 dev_err(&pf
->pdev
->dev
,
6959 "pf->vsi[%d](%p, type %d) != vsi[%d](%p,type %d): no free!\n",
6960 pf
->vsi
[vsi
->idx
]->idx
,
6962 pf
->vsi
[vsi
->idx
]->type
,
6963 vsi
->idx
, vsi
, vsi
->type
);
6967 /* updates the PF for this cleared vsi */
6968 i40e_put_lump(pf
->qp_pile
, vsi
->base_queue
, vsi
->idx
);
6969 i40e_put_lump(pf
->irq_pile
, vsi
->base_vector
, vsi
->idx
);
6971 i40e_vsi_free_arrays(vsi
, true);
6973 pf
->vsi
[vsi
->idx
] = NULL
;
6974 if (vsi
->idx
< pf
->next_vsi
)
6975 pf
->next_vsi
= vsi
->idx
;
6978 mutex_unlock(&pf
->switch_mutex
);
6986 * i40e_vsi_clear_rings - Deallocates the Rx and Tx rings for the provided VSI
6987 * @vsi: the VSI being cleaned
6989 static void i40e_vsi_clear_rings(struct i40e_vsi
*vsi
)
6993 if (vsi
->tx_rings
&& vsi
->tx_rings
[0]) {
6994 for (i
= 0; i
< vsi
->alloc_queue_pairs
; i
++) {
6995 kfree_rcu(vsi
->tx_rings
[i
], rcu
);
6996 vsi
->tx_rings
[i
] = NULL
;
6997 vsi
->rx_rings
[i
] = NULL
;
7003 * i40e_alloc_rings - Allocates the Rx and Tx rings for the provided VSI
7004 * @vsi: the VSI being configured
7006 static int i40e_alloc_rings(struct i40e_vsi
*vsi
)
7008 struct i40e_ring
*tx_ring
, *rx_ring
;
7009 struct i40e_pf
*pf
= vsi
->back
;
7012 /* Set basic values in the rings to be used later during open() */
7013 for (i
= 0; i
< vsi
->alloc_queue_pairs
; i
++) {
7014 /* allocate space for both Tx and Rx in one shot */
7015 tx_ring
= kzalloc(sizeof(struct i40e_ring
) * 2, GFP_KERNEL
);
7019 tx_ring
->queue_index
= i
;
7020 tx_ring
->reg_idx
= vsi
->base_queue
+ i
;
7021 tx_ring
->ring_active
= false;
7023 tx_ring
->netdev
= vsi
->netdev
;
7024 tx_ring
->dev
= &pf
->pdev
->dev
;
7025 tx_ring
->count
= vsi
->num_desc
;
7027 tx_ring
->dcb_tc
= 0;
7028 vsi
->tx_rings
[i
] = tx_ring
;
7030 rx_ring
= &tx_ring
[1];
7031 rx_ring
->queue_index
= i
;
7032 rx_ring
->reg_idx
= vsi
->base_queue
+ i
;
7033 rx_ring
->ring_active
= false;
7035 rx_ring
->netdev
= vsi
->netdev
;
7036 rx_ring
->dev
= &pf
->pdev
->dev
;
7037 rx_ring
->count
= vsi
->num_desc
;
7039 rx_ring
->dcb_tc
= 0;
7040 if (pf
->flags
& I40E_FLAG_16BYTE_RX_DESC_ENABLED
)
7041 set_ring_16byte_desc_enabled(rx_ring
);
7043 clear_ring_16byte_desc_enabled(rx_ring
);
7044 vsi
->rx_rings
[i
] = rx_ring
;
7050 i40e_vsi_clear_rings(vsi
);
7055 * i40e_reserve_msix_vectors - Reserve MSI-X vectors in the kernel
7056 * @pf: board private structure
7057 * @vectors: the number of MSI-X vectors to request
7059 * Returns the number of vectors reserved, or error
7061 static int i40e_reserve_msix_vectors(struct i40e_pf
*pf
, int vectors
)
7063 vectors
= pci_enable_msix_range(pf
->pdev
, pf
->msix_entries
,
7064 I40E_MIN_MSIX
, vectors
);
7066 dev_info(&pf
->pdev
->dev
,
7067 "MSI-X vector reservation failed: %d\n", vectors
);
7075 * i40e_init_msix - Setup the MSIX capability
7076 * @pf: board private structure
7078 * Work with the OS to set up the MSIX vectors needed.
7080 * Returns the number of vectors reserved or negative on failure
7082 static int i40e_init_msix(struct i40e_pf
*pf
)
7084 struct i40e_hw
*hw
= &pf
->hw
;
7089 if (!(pf
->flags
& I40E_FLAG_MSIX_ENABLED
))
7092 /* The number of vectors we'll request will be comprised of:
7093 * - Add 1 for "other" cause for Admin Queue events, etc.
7094 * - The number of LAN queue pairs
7095 * - Queues being used for RSS.
7096 * We don't need as many as max_rss_size vectors.
7097 * use rss_size instead in the calculation since that
7098 * is governed by number of cpus in the system.
7099 * - assumes symmetric Tx/Rx pairing
7100 * - The number of VMDq pairs
7102 * - The number of FCOE qps.
7104 * Once we count this up, try the request.
7106 * If we can't get what we want, we'll simplify to nearly nothing
7107 * and try again. If that still fails, we punt.
7109 vectors_left
= hw
->func_caps
.num_msix_vectors
;
7112 /* reserve one vector for miscellaneous handler */
7118 /* reserve vectors for the main PF traffic queues */
7119 pf
->num_lan_msix
= min_t(int, num_online_cpus(), vectors_left
);
7120 vectors_left
-= pf
->num_lan_msix
;
7121 v_budget
+= pf
->num_lan_msix
;
7123 /* reserve one vector for sideband flow director */
7124 if (pf
->flags
& I40E_FLAG_FD_SB_ENABLED
) {
7129 pf
->flags
&= ~I40E_FLAG_FD_SB_ENABLED
;
7134 /* can we reserve enough for FCoE? */
7135 if (pf
->flags
& I40E_FLAG_FCOE_ENABLED
) {
7137 pf
->num_fcoe_msix
= 0;
7138 else if (vectors_left
>= pf
->num_fcoe_qps
)
7139 pf
->num_fcoe_msix
= pf
->num_fcoe_qps
;
7141 pf
->num_fcoe_msix
= 1;
7142 v_budget
+= pf
->num_fcoe_msix
;
7143 vectors_left
-= pf
->num_fcoe_msix
;
7147 /* any vectors left over go for VMDq support */
7148 if (pf
->flags
& I40E_FLAG_VMDQ_ENABLED
) {
7149 int vmdq_vecs_wanted
= pf
->num_vmdq_vsis
* pf
->num_vmdq_qps
;
7150 int vmdq_vecs
= min_t(int, vectors_left
, vmdq_vecs_wanted
);
7152 /* if we're short on vectors for what's desired, we limit
7153 * the queues per vmdq. If this is still more than are
7154 * available, the user will need to change the number of
7155 * queues/vectors used by the PF later with the ethtool
7158 if (vmdq_vecs
< vmdq_vecs_wanted
)
7159 pf
->num_vmdq_qps
= 1;
7160 pf
->num_vmdq_msix
= pf
->num_vmdq_qps
;
7162 v_budget
+= vmdq_vecs
;
7163 vectors_left
-= vmdq_vecs
;
7166 pf
->msix_entries
= kcalloc(v_budget
, sizeof(struct msix_entry
),
7168 if (!pf
->msix_entries
)
7171 for (i
= 0; i
< v_budget
; i
++)
7172 pf
->msix_entries
[i
].entry
= i
;
7173 v_actual
= i40e_reserve_msix_vectors(pf
, v_budget
);
7175 if (v_actual
!= v_budget
) {
7176 /* If we have limited resources, we will start with no vectors
7177 * for the special features and then allocate vectors to some
7178 * of these features based on the policy and at the end disable
7179 * the features that did not get any vectors.
7182 pf
->num_fcoe_qps
= 0;
7183 pf
->num_fcoe_msix
= 0;
7185 pf
->num_vmdq_msix
= 0;
7188 if (v_actual
< I40E_MIN_MSIX
) {
7189 pf
->flags
&= ~I40E_FLAG_MSIX_ENABLED
;
7190 kfree(pf
->msix_entries
);
7191 pf
->msix_entries
= NULL
;
7194 } else if (v_actual
== I40E_MIN_MSIX
) {
7195 /* Adjust for minimal MSIX use */
7196 pf
->num_vmdq_vsis
= 0;
7197 pf
->num_vmdq_qps
= 0;
7198 pf
->num_lan_qps
= 1;
7199 pf
->num_lan_msix
= 1;
7201 } else if (v_actual
!= v_budget
) {
7204 /* reserve the misc vector */
7207 /* Scale vector usage down */
7208 pf
->num_vmdq_msix
= 1; /* force VMDqs to only one vector */
7209 pf
->num_vmdq_vsis
= 1;
7210 pf
->num_vmdq_qps
= 1;
7211 pf
->flags
&= ~I40E_FLAG_FD_SB_ENABLED
;
7213 /* partition out the remaining vectors */
7216 pf
->num_lan_msix
= 1;
7220 /* give one vector to FCoE */
7221 if (pf
->flags
& I40E_FLAG_FCOE_ENABLED
) {
7222 pf
->num_lan_msix
= 1;
7223 pf
->num_fcoe_msix
= 1;
7226 pf
->num_lan_msix
= 2;
7231 /* give one vector to FCoE */
7232 if (pf
->flags
& I40E_FLAG_FCOE_ENABLED
) {
7233 pf
->num_fcoe_msix
= 1;
7237 /* give the rest to the PF */
7238 pf
->num_lan_msix
= min_t(int, vec
, pf
->num_lan_qps
);
7243 if ((pf
->flags
& I40E_FLAG_VMDQ_ENABLED
) &&
7244 (pf
->num_vmdq_msix
== 0)) {
7245 dev_info(&pf
->pdev
->dev
, "VMDq disabled, not enough MSI-X vectors\n");
7246 pf
->flags
&= ~I40E_FLAG_VMDQ_ENABLED
;
7250 if ((pf
->flags
& I40E_FLAG_FCOE_ENABLED
) && (pf
->num_fcoe_msix
== 0)) {
7251 dev_info(&pf
->pdev
->dev
, "FCOE disabled, not enough MSI-X vectors\n");
7252 pf
->flags
&= ~I40E_FLAG_FCOE_ENABLED
;
7259 * i40e_vsi_alloc_q_vector - Allocate memory for a single interrupt vector
7260 * @vsi: the VSI being configured
7261 * @v_idx: index of the vector in the vsi struct
7263 * We allocate one q_vector. If allocation fails we return -ENOMEM.
7265 static int i40e_vsi_alloc_q_vector(struct i40e_vsi
*vsi
, int v_idx
)
7267 struct i40e_q_vector
*q_vector
;
7269 /* allocate q_vector */
7270 q_vector
= kzalloc(sizeof(struct i40e_q_vector
), GFP_KERNEL
);
7274 q_vector
->vsi
= vsi
;
7275 q_vector
->v_idx
= v_idx
;
7276 cpumask_set_cpu(v_idx
, &q_vector
->affinity_mask
);
7278 netif_napi_add(vsi
->netdev
, &q_vector
->napi
,
7279 i40e_napi_poll
, NAPI_POLL_WEIGHT
);
7281 q_vector
->rx
.latency_range
= I40E_LOW_LATENCY
;
7282 q_vector
->tx
.latency_range
= I40E_LOW_LATENCY
;
7284 /* tie q_vector and vsi together */
7285 vsi
->q_vectors
[v_idx
] = q_vector
;
7291 * i40e_vsi_alloc_q_vectors - Allocate memory for interrupt vectors
7292 * @vsi: the VSI being configured
7294 * We allocate one q_vector per queue interrupt. If allocation fails we
7297 static int i40e_vsi_alloc_q_vectors(struct i40e_vsi
*vsi
)
7299 struct i40e_pf
*pf
= vsi
->back
;
7300 int v_idx
, num_q_vectors
;
7303 /* if not MSIX, give the one vector only to the LAN VSI */
7304 if (pf
->flags
& I40E_FLAG_MSIX_ENABLED
)
7305 num_q_vectors
= vsi
->num_q_vectors
;
7306 else if (vsi
== pf
->vsi
[pf
->lan_vsi
])
7311 for (v_idx
= 0; v_idx
< num_q_vectors
; v_idx
++) {
7312 err
= i40e_vsi_alloc_q_vector(vsi
, v_idx
);
7321 i40e_free_q_vector(vsi
, v_idx
);
7327 * i40e_init_interrupt_scheme - Determine proper interrupt scheme
7328 * @pf: board private structure to initialize
7330 static int i40e_init_interrupt_scheme(struct i40e_pf
*pf
)
7335 if (pf
->flags
& I40E_FLAG_MSIX_ENABLED
) {
7336 vectors
= i40e_init_msix(pf
);
7338 pf
->flags
&= ~(I40E_FLAG_MSIX_ENABLED
|
7340 I40E_FLAG_FCOE_ENABLED
|
7342 I40E_FLAG_RSS_ENABLED
|
7343 I40E_FLAG_DCB_CAPABLE
|
7344 I40E_FLAG_SRIOV_ENABLED
|
7345 I40E_FLAG_FD_SB_ENABLED
|
7346 I40E_FLAG_FD_ATR_ENABLED
|
7347 I40E_FLAG_VMDQ_ENABLED
);
7349 /* rework the queue expectations without MSIX */
7350 i40e_determine_queue_usage(pf
);
7354 if (!(pf
->flags
& I40E_FLAG_MSIX_ENABLED
) &&
7355 (pf
->flags
& I40E_FLAG_MSI_ENABLED
)) {
7356 dev_info(&pf
->pdev
->dev
, "MSI-X not available, trying MSI\n");
7357 vectors
= pci_enable_msi(pf
->pdev
);
7359 dev_info(&pf
->pdev
->dev
, "MSI init failed - %d\n",
7361 pf
->flags
&= ~I40E_FLAG_MSI_ENABLED
;
7363 vectors
= 1; /* one MSI or Legacy vector */
7366 if (!(pf
->flags
& (I40E_FLAG_MSIX_ENABLED
| I40E_FLAG_MSI_ENABLED
)))
7367 dev_info(&pf
->pdev
->dev
, "MSI-X and MSI not available, falling back to Legacy IRQ\n");
7369 /* set up vector assignment tracking */
7370 size
= sizeof(struct i40e_lump_tracking
) + (sizeof(u16
) * vectors
);
7371 pf
->irq_pile
= kzalloc(size
, GFP_KERNEL
);
7372 if (!pf
->irq_pile
) {
7373 dev_err(&pf
->pdev
->dev
, "error allocating irq_pile memory\n");
7376 pf
->irq_pile
->num_entries
= vectors
;
7377 pf
->irq_pile
->search_hint
= 0;
7379 /* track first vector for misc interrupts, ignore return */
7380 (void)i40e_get_lump(pf
, pf
->irq_pile
, 1, I40E_PILE_VALID_BIT
- 1);
7386 * i40e_setup_misc_vector - Setup the misc vector to handle non queue events
7387 * @pf: board private structure
7389 * This sets up the handler for MSIX 0, which is used to manage the
7390 * non-queue interrupts, e.g. AdminQ and errors. This is not used
7391 * when in MSI or Legacy interrupt mode.
7393 static int i40e_setup_misc_vector(struct i40e_pf
*pf
)
7395 struct i40e_hw
*hw
= &pf
->hw
;
7398 /* Only request the irq if this is the first time through, and
7399 * not when we're rebuilding after a Reset
7401 if (!test_bit(__I40E_RESET_RECOVERY_PENDING
, &pf
->state
)) {
7402 err
= request_irq(pf
->msix_entries
[0].vector
,
7403 i40e_intr
, 0, pf
->int_name
, pf
);
7405 dev_info(&pf
->pdev
->dev
,
7406 "request_irq for %s failed: %d\n",
7412 i40e_enable_misc_int_causes(pf
);
7414 /* associate no queues to the misc vector */
7415 wr32(hw
, I40E_PFINT_LNKLST0
, I40E_QUEUE_END_OF_LIST
);
7416 wr32(hw
, I40E_PFINT_ITR0(I40E_RX_ITR
), I40E_ITR_8K
);
7420 i40e_irq_dynamic_enable_icr0(pf
);
7426 * i40e_config_rss - Prepare for RSS if used
7427 * @pf: board private structure
7429 static int i40e_config_rss(struct i40e_pf
*pf
)
7431 u32 rss_key
[I40E_PFQF_HKEY_MAX_INDEX
+ 1];
7432 struct i40e_vsi
*vsi
= pf
->vsi
[pf
->lan_vsi
];
7433 struct i40e_hw
*hw
= &pf
->hw
;
7439 netdev_rss_key_fill(rss_key
, sizeof(rss_key
));
7440 for (i
= 0; i
<= I40E_PFQF_HKEY_MAX_INDEX
; i
++)
7441 wr32(hw
, I40E_PFQF_HKEY(i
), rss_key
[i
]);
7443 /* By default we enable TCP/UDP with IPv4/IPv6 ptypes */
7444 hena
= (u64
)rd32(hw
, I40E_PFQF_HENA(0)) |
7445 ((u64
)rd32(hw
, I40E_PFQF_HENA(1)) << 32);
7446 hena
|= I40E_DEFAULT_RSS_HENA
;
7447 wr32(hw
, I40E_PFQF_HENA(0), (u32
)hena
);
7448 wr32(hw
, I40E_PFQF_HENA(1), (u32
)(hena
>> 32));
7450 vsi
->rss_size
= min_t(int, pf
->rss_size
, vsi
->num_queue_pairs
);
7452 /* Check capability and Set table size and register per hw expectation*/
7453 reg_val
= rd32(hw
, I40E_PFQF_CTL_0
);
7454 if (pf
->rss_table_size
== 512)
7455 reg_val
|= I40E_PFQF_CTL_0_HASHLUTSIZE_512
;
7457 reg_val
&= ~I40E_PFQF_CTL_0_HASHLUTSIZE_512
;
7458 wr32(hw
, I40E_PFQF_CTL_0
, reg_val
);
7460 /* Populate the LUT with max no. of queues in round robin fashion */
7461 for (i
= 0, j
= 0; i
< pf
->rss_table_size
; i
++, j
++) {
7463 /* The assumption is that lan qp count will be the highest
7464 * qp count for any PF VSI that needs RSS.
7465 * If multiple VSIs need RSS support, all the qp counts
7466 * for those VSIs should be a power of 2 for RSS to work.
7467 * If LAN VSI is the only consumer for RSS then this requirement
7470 if (j
== vsi
->rss_size
)
7472 /* lut = 4-byte sliding window of 4 lut entries */
7473 lut
= (lut
<< 8) | (j
&
7474 ((0x1 << pf
->hw
.func_caps
.rss_table_entry_width
) - 1));
7475 /* On i = 3, we have 4 entries in lut; write to the register */
7477 wr32(hw
, I40E_PFQF_HLUT(i
>> 2), lut
);
7485 * i40e_reconfig_rss_queues - change number of queues for rss and rebuild
7486 * @pf: board private structure
7487 * @queue_count: the requested queue count for rss.
7489 * returns 0 if rss is not enabled, if enabled returns the final rss queue
7490 * count which may be different from the requested queue count.
7492 int i40e_reconfig_rss_queues(struct i40e_pf
*pf
, int queue_count
)
7494 struct i40e_vsi
*vsi
= pf
->vsi
[pf
->lan_vsi
];
7497 if (!(pf
->flags
& I40E_FLAG_RSS_ENABLED
))
7500 new_rss_size
= min_t(int, queue_count
, pf
->rss_size_max
);
7502 if (queue_count
!= vsi
->num_queue_pairs
) {
7503 vsi
->req_queue_pairs
= queue_count
;
7504 i40e_prep_for_reset(pf
);
7506 pf
->rss_size
= new_rss_size
;
7508 i40e_reset_and_rebuild(pf
, true);
7509 i40e_config_rss(pf
);
7511 dev_info(&pf
->pdev
->dev
, "RSS count: %d\n", pf
->rss_size
);
7512 return pf
->rss_size
;
7516 * i40e_get_npar_bw_setting - Retrieve BW settings for this PF partition
7517 * @pf: board private structure
7519 i40e_status
i40e_get_npar_bw_setting(struct i40e_pf
*pf
)
7522 bool min_valid
, max_valid
;
7525 status
= i40e_read_bw_from_alt_ram(&pf
->hw
, &max_bw
, &min_bw
,
7526 &min_valid
, &max_valid
);
7530 pf
->npar_min_bw
= min_bw
;
7532 pf
->npar_max_bw
= max_bw
;
7539 * i40e_set_npar_bw_setting - Set BW settings for this PF partition
7540 * @pf: board private structure
7542 i40e_status
i40e_set_npar_bw_setting(struct i40e_pf
*pf
)
7544 struct i40e_aqc_configure_partition_bw_data bw_data
;
7547 /* Set the valid bit for this PF */
7548 bw_data
.pf_valid_bits
= cpu_to_le16(1 << pf
->hw
.pf_id
);
7549 bw_data
.max_bw
[pf
->hw
.pf_id
] = pf
->npar_max_bw
& I40E_ALT_BW_VALUE_MASK
;
7550 bw_data
.min_bw
[pf
->hw
.pf_id
] = pf
->npar_min_bw
& I40E_ALT_BW_VALUE_MASK
;
7552 /* Set the new bandwidths */
7553 status
= i40e_aq_configure_partition_bw(&pf
->hw
, &bw_data
, NULL
);
7559 * i40e_commit_npar_bw_setting - Commit BW settings for this PF partition
7560 * @pf: board private structure
7562 i40e_status
i40e_commit_npar_bw_setting(struct i40e_pf
*pf
)
7564 /* Commit temporary BW setting to permanent NVM image */
7565 enum i40e_admin_queue_err last_aq_status
;
7569 if (pf
->hw
.partition_id
!= 1) {
7570 dev_info(&pf
->pdev
->dev
,
7571 "Commit BW only works on partition 1! This is partition %d",
7572 pf
->hw
.partition_id
);
7573 ret
= I40E_NOT_SUPPORTED
;
7577 /* Acquire NVM for read access */
7578 ret
= i40e_acquire_nvm(&pf
->hw
, I40E_RESOURCE_READ
);
7579 last_aq_status
= pf
->hw
.aq
.asq_last_status
;
7581 dev_info(&pf
->pdev
->dev
,
7582 "Cannot acquire NVM for read access, err %d: aq_err %d\n",
7583 ret
, last_aq_status
);
7587 /* Read word 0x10 of NVM - SW compatibility word 1 */
7588 ret
= i40e_aq_read_nvm(&pf
->hw
,
7589 I40E_SR_NVM_CONTROL_WORD
,
7590 0x10, sizeof(nvm_word
), &nvm_word
,
7592 /* Save off last admin queue command status before releasing
7595 last_aq_status
= pf
->hw
.aq
.asq_last_status
;
7596 i40e_release_nvm(&pf
->hw
);
7598 dev_info(&pf
->pdev
->dev
, "NVM read error, err %d aq_err %d\n",
7599 ret
, last_aq_status
);
7603 /* Wait a bit for NVM release to complete */
7606 /* Acquire NVM for write access */
7607 ret
= i40e_acquire_nvm(&pf
->hw
, I40E_RESOURCE_WRITE
);
7608 last_aq_status
= pf
->hw
.aq
.asq_last_status
;
7610 dev_info(&pf
->pdev
->dev
,
7611 "Cannot acquire NVM for write access, err %d: aq_err %d\n",
7612 ret
, last_aq_status
);
7615 /* Write it back out unchanged to initiate update NVM,
7616 * which will force a write of the shadow (alt) RAM to
7617 * the NVM - thus storing the bandwidth values permanently.
7619 ret
= i40e_aq_update_nvm(&pf
->hw
,
7620 I40E_SR_NVM_CONTROL_WORD
,
7621 0x10, sizeof(nvm_word
),
7622 &nvm_word
, true, NULL
);
7623 /* Save off last admin queue command status before releasing
7626 last_aq_status
= pf
->hw
.aq
.asq_last_status
;
7627 i40e_release_nvm(&pf
->hw
);
7629 dev_info(&pf
->pdev
->dev
,
7630 "BW settings NOT SAVED, err %d aq_err %d\n",
7631 ret
, last_aq_status
);
7638 * i40e_sw_init - Initialize general software structures (struct i40e_pf)
7639 * @pf: board private structure to initialize
7641 * i40e_sw_init initializes the Adapter private data structure.
7642 * Fields are initialized based on PCI device information and
7643 * OS network device settings (MTU size).
7645 static int i40e_sw_init(struct i40e_pf
*pf
)
7650 pf
->msg_enable
= netif_msg_init(I40E_DEFAULT_MSG_ENABLE
,
7651 (NETIF_MSG_DRV
|NETIF_MSG_PROBE
|NETIF_MSG_LINK
));
7652 pf
->hw
.debug_mask
= pf
->msg_enable
| I40E_DEBUG_DIAG
;
7653 if (debug
!= -1 && debug
!= I40E_DEFAULT_MSG_ENABLE
) {
7654 if (I40E_DEBUG_USER
& debug
)
7655 pf
->hw
.debug_mask
= debug
;
7656 pf
->msg_enable
= netif_msg_init((debug
& ~I40E_DEBUG_USER
),
7657 I40E_DEFAULT_MSG_ENABLE
);
7660 /* Set default capability flags */
7661 pf
->flags
= I40E_FLAG_RX_CSUM_ENABLED
|
7662 I40E_FLAG_MSI_ENABLED
|
7663 I40E_FLAG_MSIX_ENABLED
;
7665 if (iommu_present(&pci_bus_type
))
7666 pf
->flags
|= I40E_FLAG_RX_PS_ENABLED
;
7668 pf
->flags
|= I40E_FLAG_RX_1BUF_ENABLED
;
7670 /* Set default ITR */
7671 pf
->rx_itr_default
= I40E_ITR_DYNAMIC
| I40E_ITR_RX_DEF
;
7672 pf
->tx_itr_default
= I40E_ITR_DYNAMIC
| I40E_ITR_TX_DEF
;
7674 /* Depending on PF configurations, it is possible that the RSS
7675 * maximum might end up larger than the available queues
7677 pf
->rss_size_max
= 0x1 << pf
->hw
.func_caps
.rss_table_entry_width
;
7679 pf
->rss_table_size
= pf
->hw
.func_caps
.rss_table_size
;
7680 pf
->rss_size_max
= min_t(int, pf
->rss_size_max
,
7681 pf
->hw
.func_caps
.num_tx_qp
);
7682 if (pf
->hw
.func_caps
.rss
) {
7683 pf
->flags
|= I40E_FLAG_RSS_ENABLED
;
7684 pf
->rss_size
= min_t(int, pf
->rss_size_max
, num_online_cpus());
7687 /* MFP mode enabled */
7688 if (pf
->hw
.func_caps
.npar_enable
|| pf
->hw
.func_caps
.mfp_mode_1
) {
7689 pf
->flags
|= I40E_FLAG_MFP_ENABLED
;
7690 dev_info(&pf
->pdev
->dev
, "MFP mode Enabled\n");
7691 if (i40e_get_npar_bw_setting(pf
))
7692 dev_warn(&pf
->pdev
->dev
,
7693 "Could not get NPAR bw settings\n");
7695 dev_info(&pf
->pdev
->dev
,
7696 "Min BW = %8.8x, Max BW = %8.8x\n",
7697 pf
->npar_min_bw
, pf
->npar_max_bw
);
7700 /* FW/NVM is not yet fixed in this regard */
7701 if ((pf
->hw
.func_caps
.fd_filters_guaranteed
> 0) ||
7702 (pf
->hw
.func_caps
.fd_filters_best_effort
> 0)) {
7703 pf
->flags
|= I40E_FLAG_FD_ATR_ENABLED
;
7704 pf
->atr_sample_rate
= I40E_DEFAULT_ATR_SAMPLE_RATE
;
7705 if (!(pf
->flags
& I40E_FLAG_MFP_ENABLED
)) {
7706 pf
->flags
|= I40E_FLAG_FD_SB_ENABLED
;
7708 dev_info(&pf
->pdev
->dev
,
7709 "Flow Director Sideband mode Disabled in MFP mode\n");
7711 pf
->fdir_pf_filter_count
=
7712 pf
->hw
.func_caps
.fd_filters_guaranteed
;
7713 pf
->hw
.fdir_shared_filter_count
=
7714 pf
->hw
.func_caps
.fd_filters_best_effort
;
7717 if (pf
->hw
.func_caps
.vmdq
) {
7718 pf
->flags
|= I40E_FLAG_VMDQ_ENABLED
;
7719 pf
->num_vmdq_vsis
= I40E_DEFAULT_NUM_VMDQ_VSI
;
7720 pf
->num_vmdq_qps
= I40E_DEFAULT_QUEUES_PER_VMDQ
;
7724 err
= i40e_init_pf_fcoe(pf
);
7726 dev_info(&pf
->pdev
->dev
, "init_pf_fcoe failed: %d\n", err
);
7728 #endif /* I40E_FCOE */
7729 #ifdef CONFIG_PCI_IOV
7730 if (pf
->hw
.func_caps
.num_vfs
&& pf
->hw
.partition_id
== 1) {
7731 pf
->num_vf_qps
= I40E_DEFAULT_QUEUES_PER_VF
;
7732 pf
->flags
|= I40E_FLAG_SRIOV_ENABLED
;
7733 pf
->num_req_vfs
= min_t(int,
7734 pf
->hw
.func_caps
.num_vfs
,
7737 #endif /* CONFIG_PCI_IOV */
7738 pf
->eeprom_version
= 0xDEAD;
7739 pf
->lan_veb
= I40E_NO_VEB
;
7740 pf
->lan_vsi
= I40E_NO_VSI
;
7742 /* set up queue assignment tracking */
7743 size
= sizeof(struct i40e_lump_tracking
)
7744 + (sizeof(u16
) * pf
->hw
.func_caps
.num_tx_qp
);
7745 pf
->qp_pile
= kzalloc(size
, GFP_KERNEL
);
7750 pf
->qp_pile
->num_entries
= pf
->hw
.func_caps
.num_tx_qp
;
7751 pf
->qp_pile
->search_hint
= 0;
7753 pf
->tx_timeout_recovery_level
= 1;
7755 mutex_init(&pf
->switch_mutex
);
7757 /* If NPAR is enabled nudge the Tx scheduler */
7758 if (pf
->hw
.func_caps
.npar_enable
&& (!i40e_get_npar_bw_setting(pf
)))
7759 i40e_set_npar_bw_setting(pf
);
7766 * i40e_set_ntuple - set the ntuple feature flag and take action
7767 * @pf: board private structure to initialize
7768 * @features: the feature set that the stack is suggesting
7770 * returns a bool to indicate if reset needs to happen
7772 bool i40e_set_ntuple(struct i40e_pf
*pf
, netdev_features_t features
)
7774 bool need_reset
= false;
7776 /* Check if Flow Director n-tuple support was enabled or disabled. If
7777 * the state changed, we need to reset.
7779 if (features
& NETIF_F_NTUPLE
) {
7780 /* Enable filters and mark for reset */
7781 if (!(pf
->flags
& I40E_FLAG_FD_SB_ENABLED
))
7783 pf
->flags
|= I40E_FLAG_FD_SB_ENABLED
;
7785 /* turn off filters, mark for reset and clear SW filter list */
7786 if (pf
->flags
& I40E_FLAG_FD_SB_ENABLED
) {
7788 i40e_fdir_filter_exit(pf
);
7790 pf
->flags
&= ~I40E_FLAG_FD_SB_ENABLED
;
7791 pf
->auto_disable_flags
&= ~I40E_FLAG_FD_SB_ENABLED
;
7792 /* reset fd counters */
7793 pf
->fd_add_err
= pf
->fd_atr_cnt
= pf
->fd_tcp_rule
= 0;
7794 pf
->fdir_pf_active_filters
= 0;
7795 pf
->flags
|= I40E_FLAG_FD_ATR_ENABLED
;
7796 if (I40E_DEBUG_FD
& pf
->hw
.debug_mask
)
7797 dev_info(&pf
->pdev
->dev
, "ATR re-enabled.\n");
7798 /* if ATR was auto disabled it can be re-enabled. */
7799 if ((pf
->flags
& I40E_FLAG_FD_ATR_ENABLED
) &&
7800 (pf
->auto_disable_flags
& I40E_FLAG_FD_ATR_ENABLED
))
7801 pf
->auto_disable_flags
&= ~I40E_FLAG_FD_ATR_ENABLED
;
7807 * i40e_set_features - set the netdev feature flags
7808 * @netdev: ptr to the netdev being adjusted
7809 * @features: the feature set that the stack is suggesting
7811 static int i40e_set_features(struct net_device
*netdev
,
7812 netdev_features_t features
)
7814 struct i40e_netdev_priv
*np
= netdev_priv(netdev
);
7815 struct i40e_vsi
*vsi
= np
->vsi
;
7816 struct i40e_pf
*pf
= vsi
->back
;
7819 if (features
& NETIF_F_HW_VLAN_CTAG_RX
)
7820 i40e_vlan_stripping_enable(vsi
);
7822 i40e_vlan_stripping_disable(vsi
);
7824 need_reset
= i40e_set_ntuple(pf
, features
);
7827 i40e_do_reset(pf
, (1 << __I40E_PF_RESET_REQUESTED
));
7832 #ifdef CONFIG_I40E_VXLAN
7834 * i40e_get_vxlan_port_idx - Lookup a possibly offloaded for Rx UDP port
7835 * @pf: board private structure
7836 * @port: The UDP port to look up
7838 * Returns the index number or I40E_MAX_PF_UDP_OFFLOAD_PORTS if port not found
7840 static u8
i40e_get_vxlan_port_idx(struct i40e_pf
*pf
, __be16 port
)
7844 for (i
= 0; i
< I40E_MAX_PF_UDP_OFFLOAD_PORTS
; i
++) {
7845 if (pf
->vxlan_ports
[i
] == port
)
7853 * i40e_add_vxlan_port - Get notifications about VXLAN ports that come up
7854 * @netdev: This physical port's netdev
7855 * @sa_family: Socket Family that VXLAN is notifying us about
7856 * @port: New UDP port number that VXLAN started listening to
7858 static void i40e_add_vxlan_port(struct net_device
*netdev
,
7859 sa_family_t sa_family
, __be16 port
)
7861 struct i40e_netdev_priv
*np
= netdev_priv(netdev
);
7862 struct i40e_vsi
*vsi
= np
->vsi
;
7863 struct i40e_pf
*pf
= vsi
->back
;
7867 if (sa_family
== AF_INET6
)
7870 idx
= i40e_get_vxlan_port_idx(pf
, port
);
7872 /* Check if port already exists */
7873 if (idx
< I40E_MAX_PF_UDP_OFFLOAD_PORTS
) {
7874 netdev_info(netdev
, "vxlan port %d already offloaded\n",
7879 /* Now check if there is space to add the new port */
7880 next_idx
= i40e_get_vxlan_port_idx(pf
, 0);
7882 if (next_idx
== I40E_MAX_PF_UDP_OFFLOAD_PORTS
) {
7883 netdev_info(netdev
, "maximum number of vxlan UDP ports reached, not adding port %d\n",
7888 /* New port: add it and mark its index in the bitmap */
7889 pf
->vxlan_ports
[next_idx
] = port
;
7890 pf
->pending_vxlan_bitmap
|= (1 << next_idx
);
7891 pf
->flags
|= I40E_FLAG_VXLAN_FILTER_SYNC
;
7893 dev_info(&pf
->pdev
->dev
, "adding vxlan port %d\n", ntohs(port
));
7897 * i40e_del_vxlan_port - Get notifications about VXLAN ports that go away
7898 * @netdev: This physical port's netdev
7899 * @sa_family: Socket Family that VXLAN is notifying us about
7900 * @port: UDP port number that VXLAN stopped listening to
7902 static void i40e_del_vxlan_port(struct net_device
*netdev
,
7903 sa_family_t sa_family
, __be16 port
)
7905 struct i40e_netdev_priv
*np
= netdev_priv(netdev
);
7906 struct i40e_vsi
*vsi
= np
->vsi
;
7907 struct i40e_pf
*pf
= vsi
->back
;
7910 if (sa_family
== AF_INET6
)
7913 idx
= i40e_get_vxlan_port_idx(pf
, port
);
7915 /* Check if port already exists */
7916 if (idx
< I40E_MAX_PF_UDP_OFFLOAD_PORTS
) {
7917 /* if port exists, set it to 0 (mark for deletion)
7918 * and make it pending
7920 pf
->vxlan_ports
[idx
] = 0;
7921 pf
->pending_vxlan_bitmap
|= (1 << idx
);
7922 pf
->flags
|= I40E_FLAG_VXLAN_FILTER_SYNC
;
7924 dev_info(&pf
->pdev
->dev
, "deleting vxlan port %d\n",
7927 netdev_warn(netdev
, "vxlan port %d was not found, not deleting\n",
7933 static int i40e_get_phys_port_id(struct net_device
*netdev
,
7934 struct netdev_phys_item_id
*ppid
)
7936 struct i40e_netdev_priv
*np
= netdev_priv(netdev
);
7937 struct i40e_pf
*pf
= np
->vsi
->back
;
7938 struct i40e_hw
*hw
= &pf
->hw
;
7940 if (!(pf
->flags
& I40E_FLAG_PORT_ID_VALID
))
7943 ppid
->id_len
= min_t(int, sizeof(hw
->mac
.port_addr
), sizeof(ppid
->id
));
7944 memcpy(ppid
->id
, hw
->mac
.port_addr
, ppid
->id_len
);
7950 * i40e_ndo_fdb_add - add an entry to the hardware database
7951 * @ndm: the input from the stack
7952 * @tb: pointer to array of nladdr (unused)
7953 * @dev: the net device pointer
7954 * @addr: the MAC address entry being added
7955 * @flags: instructions from stack about fdb operation
7957 static int i40e_ndo_fdb_add(struct ndmsg
*ndm
, struct nlattr
*tb
[],
7958 struct net_device
*dev
,
7959 const unsigned char *addr
, u16 vid
,
7962 struct i40e_netdev_priv
*np
= netdev_priv(dev
);
7963 struct i40e_pf
*pf
= np
->vsi
->back
;
7966 if (!(pf
->flags
& I40E_FLAG_SRIOV_ENABLED
))
7970 pr_info("%s: vlans aren't supported yet for dev_uc|mc_add()\n", dev
->name
);
7974 /* Hardware does not support aging addresses so if a
7975 * ndm_state is given only allow permanent addresses
7977 if (ndm
->ndm_state
&& !(ndm
->ndm_state
& NUD_PERMANENT
)) {
7978 netdev_info(dev
, "FDB only supports static addresses\n");
7982 if (is_unicast_ether_addr(addr
) || is_link_local_ether_addr(addr
))
7983 err
= dev_uc_add_excl(dev
, addr
);
7984 else if (is_multicast_ether_addr(addr
))
7985 err
= dev_mc_add_excl(dev
, addr
);
7989 /* Only return duplicate errors if NLM_F_EXCL is set */
7990 if (err
== -EEXIST
&& !(flags
& NLM_F_EXCL
))
7996 #ifdef HAVE_BRIDGE_ATTRIBS
7998 * i40e_ndo_bridge_setlink - Set the hardware bridge mode
7999 * @dev: the netdev being configured
8000 * @nlh: RTNL message
8002 * Inserts a new hardware bridge if not already created and
8003 * enables the bridging mode requested (VEB or VEPA). If the
8004 * hardware bridge has already been inserted and the request
8005 * is to change the mode then that requires a PF reset to
8006 * allow rebuild of the components with required hardware
8007 * bridge mode enabled.
8009 static int i40e_ndo_bridge_setlink(struct net_device
*dev
,
8010 struct nlmsghdr
*nlh
)
8012 struct i40e_netdev_priv
*np
= netdev_priv(dev
);
8013 struct i40e_vsi
*vsi
= np
->vsi
;
8014 struct i40e_pf
*pf
= vsi
->back
;
8015 struct i40e_veb
*veb
= NULL
;
8016 struct nlattr
*attr
, *br_spec
;
8019 /* Only for PF VSI for now */
8020 if (vsi
->seid
!= pf
->vsi
[pf
->lan_vsi
]->seid
)
8023 /* Find the HW bridge for PF VSI */
8024 for (i
= 0; i
< I40E_MAX_VEB
&& !veb
; i
++) {
8025 if (pf
->veb
[i
] && pf
->veb
[i
]->seid
== vsi
->uplink_seid
)
8029 br_spec
= nlmsg_find_attr(nlh
, sizeof(struct ifinfomsg
), IFLA_AF_SPEC
);
8031 nla_for_each_nested(attr
, br_spec
, rem
) {
8034 if (nla_type(attr
) != IFLA_BRIDGE_MODE
)
8037 mode
= nla_get_u16(attr
);
8038 if ((mode
!= BRIDGE_MODE_VEPA
) &&
8039 (mode
!= BRIDGE_MODE_VEB
))
8042 /* Insert a new HW bridge */
8044 veb
= i40e_veb_setup(pf
, 0, vsi
->uplink_seid
, vsi
->seid
,
8045 vsi
->tc_config
.enabled_tc
);
8047 veb
->bridge_mode
= mode
;
8048 i40e_config_bridge_mode(veb
);
8050 /* No Bridge HW offload available */
8054 } else if (mode
!= veb
->bridge_mode
) {
8055 /* Existing HW bridge but different mode needs reset */
8056 veb
->bridge_mode
= mode
;
8057 /* TODO: If no VFs or VMDq VSIs, disallow VEB mode */
8058 if (mode
== BRIDGE_MODE_VEB
)
8059 pf
->flags
|= I40E_FLAG_VEB_MODE_ENABLED
;
8061 pf
->flags
&= ~I40E_FLAG_VEB_MODE_ENABLED
;
8062 i40e_do_reset(pf
, BIT_ULL(__I40E_PF_RESET_REQUESTED
));
8071 * i40e_ndo_bridge_getlink - Get the hardware bridge mode
8074 * @seq: RTNL message seq #
8075 * @dev: the netdev being configured
8076 * @filter_mask: unused
8078 * Return the mode in which the hardware bridge is operating in
8081 #ifdef HAVE_BRIDGE_FILTER
8082 static int i40e_ndo_bridge_getlink(struct sk_buff
*skb
, u32 pid
, u32 seq
,
8083 struct net_device
*dev
,
8084 u32 filter_mask
, int nlflags
)
8086 static int i40e_ndo_bridge_getlink(struct sk_buff
*skb
, u32 pid
, u32 seq
,
8087 struct net_device
*dev
, int nlflags
)
8088 #endif /* HAVE_BRIDGE_FILTER */
8090 struct i40e_netdev_priv
*np
= netdev_priv(dev
);
8091 struct i40e_vsi
*vsi
= np
->vsi
;
8092 struct i40e_pf
*pf
= vsi
->back
;
8093 struct i40e_veb
*veb
= NULL
;
8096 /* Only for PF VSI for now */
8097 if (vsi
->seid
!= pf
->vsi
[pf
->lan_vsi
]->seid
)
8100 /* Find the HW bridge for the PF VSI */
8101 for (i
= 0; i
< I40E_MAX_VEB
&& !veb
; i
++) {
8102 if (pf
->veb
[i
] && pf
->veb
[i
]->seid
== vsi
->uplink_seid
)
8109 return ndo_dflt_bridge_getlink(skb
, pid
, seq
, dev
, veb
->bridge_mode
,
8110 nlflags
, 0, 0, filter_mask
, NULL
);
8112 #endif /* HAVE_BRIDGE_ATTRIBS */
8114 #define I40E_MAX_TUNNEL_HDR_LEN 80
8116 * i40e_features_check - Validate encapsulated packet conforms to limits
8118 * @netdev: This physical port's netdev
8119 * @features: Offload features that the stack believes apply
8121 static netdev_features_t
i40e_features_check(struct sk_buff
*skb
,
8122 struct net_device
*dev
,
8123 netdev_features_t features
)
8125 if (skb
->encapsulation
&&
8126 (skb_inner_mac_header(skb
) - skb_transport_header(skb
) >
8127 I40E_MAX_TUNNEL_HDR_LEN
))
8128 return features
& ~(NETIF_F_ALL_CSUM
| NETIF_F_GSO_MASK
);
8133 static const struct net_device_ops i40e_netdev_ops
= {
8134 .ndo_open
= i40e_open
,
8135 .ndo_stop
= i40e_close
,
8136 .ndo_start_xmit
= i40e_lan_xmit_frame
,
8137 .ndo_get_stats64
= i40e_get_netdev_stats_struct
,
8138 .ndo_set_rx_mode
= i40e_set_rx_mode
,
8139 .ndo_validate_addr
= eth_validate_addr
,
8140 .ndo_set_mac_address
= i40e_set_mac
,
8141 .ndo_change_mtu
= i40e_change_mtu
,
8142 .ndo_do_ioctl
= i40e_ioctl
,
8143 .ndo_tx_timeout
= i40e_tx_timeout
,
8144 .ndo_vlan_rx_add_vid
= i40e_vlan_rx_add_vid
,
8145 .ndo_vlan_rx_kill_vid
= i40e_vlan_rx_kill_vid
,
8146 #ifdef CONFIG_NET_POLL_CONTROLLER
8147 .ndo_poll_controller
= i40e_netpoll
,
8149 .ndo_setup_tc
= i40e_setup_tc
,
8151 .ndo_fcoe_enable
= i40e_fcoe_enable
,
8152 .ndo_fcoe_disable
= i40e_fcoe_disable
,
8154 .ndo_set_features
= i40e_set_features
,
8155 .ndo_set_vf_mac
= i40e_ndo_set_vf_mac
,
8156 .ndo_set_vf_vlan
= i40e_ndo_set_vf_port_vlan
,
8157 .ndo_set_vf_rate
= i40e_ndo_set_vf_bw
,
8158 .ndo_get_vf_config
= i40e_ndo_get_vf_config
,
8159 .ndo_set_vf_link_state
= i40e_ndo_set_vf_link_state
,
8160 .ndo_set_vf_spoofchk
= i40e_ndo_set_vf_spoofchk
,
8161 #ifdef CONFIG_I40E_VXLAN
8162 .ndo_add_vxlan_port
= i40e_add_vxlan_port
,
8163 .ndo_del_vxlan_port
= i40e_del_vxlan_port
,
8165 .ndo_get_phys_port_id
= i40e_get_phys_port_id
,
8166 .ndo_fdb_add
= i40e_ndo_fdb_add
,
8167 .ndo_features_check
= i40e_features_check
,
8168 #ifdef HAVE_BRIDGE_ATTRIBS
8169 .ndo_bridge_getlink
= i40e_ndo_bridge_getlink
,
8170 .ndo_bridge_setlink
= i40e_ndo_bridge_setlink
,
8171 #endif /* HAVE_BRIDGE_ATTRIBS */
8175 * i40e_config_netdev - Setup the netdev flags
8176 * @vsi: the VSI being configured
8178 * Returns 0 on success, negative value on failure
8180 static int i40e_config_netdev(struct i40e_vsi
*vsi
)
8182 u8 brdcast
[ETH_ALEN
] = {0xff, 0xff, 0xff, 0xff, 0xff, 0xff};
8183 struct i40e_pf
*pf
= vsi
->back
;
8184 struct i40e_hw
*hw
= &pf
->hw
;
8185 struct i40e_netdev_priv
*np
;
8186 struct net_device
*netdev
;
8187 u8 mac_addr
[ETH_ALEN
];
8190 etherdev_size
= sizeof(struct i40e_netdev_priv
);
8191 netdev
= alloc_etherdev_mq(etherdev_size
, vsi
->alloc_queue_pairs
);
8195 vsi
->netdev
= netdev
;
8196 np
= netdev_priv(netdev
);
8199 netdev
->hw_enc_features
|= NETIF_F_IP_CSUM
|
8200 NETIF_F_GSO_UDP_TUNNEL
|
8203 netdev
->features
= NETIF_F_SG
|
8207 NETIF_F_GSO_UDP_TUNNEL
|
8208 NETIF_F_HW_VLAN_CTAG_TX
|
8209 NETIF_F_HW_VLAN_CTAG_RX
|
8210 NETIF_F_HW_VLAN_CTAG_FILTER
|
8219 if (!(pf
->flags
& I40E_FLAG_MFP_ENABLED
))
8220 netdev
->features
|= NETIF_F_NTUPLE
;
8222 /* copy netdev features into list of user selectable features */
8223 netdev
->hw_features
|= netdev
->features
;
8225 if (vsi
->type
== I40E_VSI_MAIN
) {
8226 SET_NETDEV_DEV(netdev
, &pf
->pdev
->dev
);
8227 ether_addr_copy(mac_addr
, hw
->mac
.perm_addr
);
8228 /* The following steps are necessary to prevent reception
8229 * of tagged packets - some older NVM configurations load a
8230 * default a MAC-VLAN filter that accepts any tagged packet
8231 * which must be replaced by a normal filter.
8233 if (!i40e_rm_default_mac_filter(vsi
, mac_addr
))
8234 i40e_add_filter(vsi
, mac_addr
,
8235 I40E_VLAN_ANY
, false, true);
8237 /* relate the VSI_VMDQ name to the VSI_MAIN name */
8238 snprintf(netdev
->name
, IFNAMSIZ
, "%sv%%d",
8239 pf
->vsi
[pf
->lan_vsi
]->netdev
->name
);
8240 random_ether_addr(mac_addr
);
8241 i40e_add_filter(vsi
, mac_addr
, I40E_VLAN_ANY
, false, false);
8243 i40e_add_filter(vsi
, brdcast
, I40E_VLAN_ANY
, false, false);
8245 ether_addr_copy(netdev
->dev_addr
, mac_addr
);
8246 ether_addr_copy(netdev
->perm_addr
, mac_addr
);
8247 /* vlan gets same features (except vlan offload)
8248 * after any tweaks for specific VSI types
8250 netdev
->vlan_features
= netdev
->features
& ~(NETIF_F_HW_VLAN_CTAG_TX
|
8251 NETIF_F_HW_VLAN_CTAG_RX
|
8252 NETIF_F_HW_VLAN_CTAG_FILTER
);
8253 netdev
->priv_flags
|= IFF_UNICAST_FLT
;
8254 netdev
->priv_flags
|= IFF_SUPP_NOFCS
;
8255 /* Setup netdev TC information */
8256 i40e_vsi_config_netdev_tc(vsi
, vsi
->tc_config
.enabled_tc
);
8258 netdev
->netdev_ops
= &i40e_netdev_ops
;
8259 netdev
->watchdog_timeo
= 5 * HZ
;
8260 i40e_set_ethtool_ops(netdev
);
8262 i40e_fcoe_config_netdev(netdev
, vsi
);
8269 * i40e_vsi_delete - Delete a VSI from the switch
8270 * @vsi: the VSI being removed
8272 * Returns 0 on success, negative value on failure
8274 static void i40e_vsi_delete(struct i40e_vsi
*vsi
)
8276 /* remove default VSI is not allowed */
8277 if (vsi
== vsi
->back
->vsi
[vsi
->back
->lan_vsi
])
8280 i40e_aq_delete_element(&vsi
->back
->hw
, vsi
->seid
, NULL
);
8284 * i40e_is_vsi_uplink_mode_veb - Check if the VSI's uplink bridge mode is VEB
8285 * @vsi: the VSI being queried
8287 * Returns 1 if HW bridge mode is VEB and return 0 in case of VEPA mode
8289 int i40e_is_vsi_uplink_mode_veb(struct i40e_vsi
*vsi
)
8291 struct i40e_veb
*veb
;
8292 struct i40e_pf
*pf
= vsi
->back
;
8294 /* Uplink is not a bridge so default to VEB */
8295 if (vsi
->veb_idx
== I40E_NO_VEB
)
8298 veb
= pf
->veb
[vsi
->veb_idx
];
8299 /* Uplink is a bridge in VEPA mode */
8300 if (veb
&& (veb
->bridge_mode
& BRIDGE_MODE_VEPA
))
8303 /* Uplink is a bridge in VEB mode */
8308 * i40e_add_vsi - Add a VSI to the switch
8309 * @vsi: the VSI being configured
8311 * This initializes a VSI context depending on the VSI type to be added and
8312 * passes it down to the add_vsi aq command.
8314 static int i40e_add_vsi(struct i40e_vsi
*vsi
)
8317 struct i40e_mac_filter
*f
, *ftmp
;
8318 struct i40e_pf
*pf
= vsi
->back
;
8319 struct i40e_hw
*hw
= &pf
->hw
;
8320 struct i40e_vsi_context ctxt
;
8321 u8 enabled_tc
= 0x1; /* TC0 enabled */
8324 memset(&ctxt
, 0, sizeof(ctxt
));
8325 switch (vsi
->type
) {
8327 /* The PF's main VSI is already setup as part of the
8328 * device initialization, so we'll not bother with
8329 * the add_vsi call, but we will retrieve the current
8332 ctxt
.seid
= pf
->main_vsi_seid
;
8333 ctxt
.pf_num
= pf
->hw
.pf_id
;
8335 ret
= i40e_aq_get_vsi_params(&pf
->hw
, &ctxt
, NULL
);
8336 ctxt
.flags
= I40E_AQ_VSI_TYPE_PF
;
8338 dev_info(&pf
->pdev
->dev
,
8339 "couldn't get PF vsi config, err %d, aq_err %d\n",
8340 ret
, pf
->hw
.aq
.asq_last_status
);
8343 vsi
->info
= ctxt
.info
;
8344 vsi
->info
.valid_sections
= 0;
8346 vsi
->seid
= ctxt
.seid
;
8347 vsi
->id
= ctxt
.vsi_number
;
8349 enabled_tc
= i40e_pf_get_tc_map(pf
);
8351 /* MFP mode setup queue map and update VSI */
8352 if ((pf
->flags
& I40E_FLAG_MFP_ENABLED
) &&
8353 !(pf
->hw
.func_caps
.iscsi
)) { /* NIC type PF */
8354 memset(&ctxt
, 0, sizeof(ctxt
));
8355 ctxt
.seid
= pf
->main_vsi_seid
;
8356 ctxt
.pf_num
= pf
->hw
.pf_id
;
8358 i40e_vsi_setup_queue_map(vsi
, &ctxt
, enabled_tc
, false);
8359 ret
= i40e_aq_update_vsi_params(hw
, &ctxt
, NULL
);
8361 dev_info(&pf
->pdev
->dev
,
8362 "update vsi failed, aq_err=%d\n",
8363 pf
->hw
.aq
.asq_last_status
);
8367 /* update the local VSI info queue map */
8368 i40e_vsi_update_queue_map(vsi
, &ctxt
);
8369 vsi
->info
.valid_sections
= 0;
8371 /* Default/Main VSI is only enabled for TC0
8372 * reconfigure it to enable all TCs that are
8373 * available on the port in SFP mode.
8374 * For MFP case the iSCSI PF would use this
8375 * flow to enable LAN+iSCSI TC.
8377 ret
= i40e_vsi_config_tc(vsi
, enabled_tc
);
8379 dev_info(&pf
->pdev
->dev
,
8380 "failed to configure TCs for main VSI tc_map 0x%08x, err %d, aq_err %d\n",
8382 pf
->hw
.aq
.asq_last_status
);
8389 ctxt
.pf_num
= hw
->pf_id
;
8391 ctxt
.uplink_seid
= vsi
->uplink_seid
;
8392 ctxt
.connection_type
= I40E_AQ_VSI_CONN_TYPE_NORMAL
;
8393 ctxt
.flags
= I40E_AQ_VSI_TYPE_PF
;
8394 if ((pf
->flags
& I40E_FLAG_VEB_MODE_ENABLED
) &&
8395 (i40e_is_vsi_uplink_mode_veb(vsi
))) {
8396 ctxt
.info
.valid_sections
|=
8397 cpu_to_le16(I40E_AQ_VSI_PROP_SWITCH_VALID
);
8398 ctxt
.info
.switch_id
=
8399 cpu_to_le16(I40E_AQ_VSI_SW_ID_FLAG_ALLOW_LB
);
8401 i40e_vsi_setup_queue_map(vsi
, &ctxt
, enabled_tc
, true);
8404 case I40E_VSI_VMDQ2
:
8405 ctxt
.pf_num
= hw
->pf_id
;
8407 ctxt
.uplink_seid
= vsi
->uplink_seid
;
8408 ctxt
.connection_type
= I40E_AQ_VSI_CONN_TYPE_NORMAL
;
8409 ctxt
.flags
= I40E_AQ_VSI_TYPE_VMDQ2
;
8411 /* This VSI is connected to VEB so the switch_id
8412 * should be set to zero by default.
8414 if (i40e_is_vsi_uplink_mode_veb(vsi
)) {
8415 ctxt
.info
.valid_sections
|=
8416 cpu_to_le16(I40E_AQ_VSI_PROP_SWITCH_VALID
);
8417 ctxt
.info
.switch_id
=
8418 cpu_to_le16(I40E_AQ_VSI_SW_ID_FLAG_ALLOW_LB
);
8421 /* Setup the VSI tx/rx queue map for TC0 only for now */
8422 i40e_vsi_setup_queue_map(vsi
, &ctxt
, enabled_tc
, true);
8425 case I40E_VSI_SRIOV
:
8426 ctxt
.pf_num
= hw
->pf_id
;
8427 ctxt
.vf_num
= vsi
->vf_id
+ hw
->func_caps
.vf_base_id
;
8428 ctxt
.uplink_seid
= vsi
->uplink_seid
;
8429 ctxt
.connection_type
= I40E_AQ_VSI_CONN_TYPE_NORMAL
;
8430 ctxt
.flags
= I40E_AQ_VSI_TYPE_VF
;
8432 /* This VSI is connected to VEB so the switch_id
8433 * should be set to zero by default.
8435 if (i40e_is_vsi_uplink_mode_veb(vsi
)) {
8436 ctxt
.info
.valid_sections
|=
8437 cpu_to_le16(I40E_AQ_VSI_PROP_SWITCH_VALID
);
8438 ctxt
.info
.switch_id
=
8439 cpu_to_le16(I40E_AQ_VSI_SW_ID_FLAG_ALLOW_LB
);
8442 ctxt
.info
.valid_sections
|= cpu_to_le16(I40E_AQ_VSI_PROP_VLAN_VALID
);
8443 ctxt
.info
.port_vlan_flags
|= I40E_AQ_VSI_PVLAN_MODE_ALL
;
8444 if (pf
->vf
[vsi
->vf_id
].spoofchk
) {
8445 ctxt
.info
.valid_sections
|=
8446 cpu_to_le16(I40E_AQ_VSI_PROP_SECURITY_VALID
);
8447 ctxt
.info
.sec_flags
|=
8448 (I40E_AQ_VSI_SEC_FLAG_ENABLE_VLAN_CHK
|
8449 I40E_AQ_VSI_SEC_FLAG_ENABLE_MAC_CHK
);
8451 /* Setup the VSI tx/rx queue map for TC0 only for now */
8452 i40e_vsi_setup_queue_map(vsi
, &ctxt
, enabled_tc
, true);
8457 ret
= i40e_fcoe_vsi_init(vsi
, &ctxt
);
8459 dev_info(&pf
->pdev
->dev
, "failed to initialize FCoE VSI\n");
8464 #endif /* I40E_FCOE */
8469 if (vsi
->type
!= I40E_VSI_MAIN
) {
8470 ret
= i40e_aq_add_vsi(hw
, &ctxt
, NULL
);
8472 dev_info(&vsi
->back
->pdev
->dev
,
8473 "add vsi failed, aq_err=%d\n",
8474 vsi
->back
->hw
.aq
.asq_last_status
);
8478 vsi
->info
= ctxt
.info
;
8479 vsi
->info
.valid_sections
= 0;
8480 vsi
->seid
= ctxt
.seid
;
8481 vsi
->id
= ctxt
.vsi_number
;
8484 /* If macvlan filters already exist, force them to get loaded */
8485 list_for_each_entry_safe(f
, ftmp
, &vsi
->mac_filter_list
, list
) {
8489 if (f
->is_laa
&& vsi
->type
== I40E_VSI_MAIN
) {
8490 struct i40e_aqc_remove_macvlan_element_data element
;
8492 memset(&element
, 0, sizeof(element
));
8493 ether_addr_copy(element
.mac_addr
, f
->macaddr
);
8494 element
.flags
= I40E_AQC_MACVLAN_DEL_PERFECT_MATCH
;
8495 ret
= i40e_aq_remove_macvlan(hw
, vsi
->seid
,
8498 /* some older FW has a different default */
8500 I40E_AQC_MACVLAN_DEL_IGNORE_VLAN
;
8501 i40e_aq_remove_macvlan(hw
, vsi
->seid
,
8505 i40e_aq_mac_address_write(hw
,
8506 I40E_AQC_WRITE_TYPE_LAA_WOL
,
8511 vsi
->flags
|= I40E_VSI_FLAG_FILTER_CHANGED
;
8512 pf
->flags
|= I40E_FLAG_FILTER_SYNC
;
8515 /* Update VSI BW information */
8516 ret
= i40e_vsi_get_bw_info(vsi
);
8518 dev_info(&pf
->pdev
->dev
,
8519 "couldn't get vsi bw info, err %d, aq_err %d\n",
8520 ret
, pf
->hw
.aq
.asq_last_status
);
8521 /* VSI is already added so not tearing that up */
8530 * i40e_vsi_release - Delete a VSI and free its resources
8531 * @vsi: the VSI being removed
8533 * Returns 0 on success or < 0 on error
8535 int i40e_vsi_release(struct i40e_vsi
*vsi
)
8537 struct i40e_mac_filter
*f
, *ftmp
;
8538 struct i40e_veb
*veb
= NULL
;
8545 /* release of a VEB-owner or last VSI is not allowed */
8546 if (vsi
->flags
& I40E_VSI_FLAG_VEB_OWNER
) {
8547 dev_info(&pf
->pdev
->dev
, "VSI %d has existing VEB %d\n",
8548 vsi
->seid
, vsi
->uplink_seid
);
8551 if (vsi
== pf
->vsi
[pf
->lan_vsi
] &&
8552 !test_bit(__I40E_DOWN
, &pf
->state
)) {
8553 dev_info(&pf
->pdev
->dev
, "Can't remove PF VSI\n");
8557 uplink_seid
= vsi
->uplink_seid
;
8558 if (vsi
->type
!= I40E_VSI_SRIOV
) {
8559 if (vsi
->netdev_registered
) {
8560 vsi
->netdev_registered
= false;
8562 /* results in a call to i40e_close() */
8563 unregister_netdev(vsi
->netdev
);
8566 i40e_vsi_close(vsi
);
8568 i40e_vsi_disable_irq(vsi
);
8571 list_for_each_entry_safe(f
, ftmp
, &vsi
->mac_filter_list
, list
)
8572 i40e_del_filter(vsi
, f
->macaddr
, f
->vlan
,
8573 f
->is_vf
, f
->is_netdev
);
8574 i40e_sync_vsi_filters(vsi
);
8576 i40e_vsi_delete(vsi
);
8577 i40e_vsi_free_q_vectors(vsi
);
8579 free_netdev(vsi
->netdev
);
8582 i40e_vsi_clear_rings(vsi
);
8583 i40e_vsi_clear(vsi
);
8585 /* If this was the last thing on the VEB, except for the
8586 * controlling VSI, remove the VEB, which puts the controlling
8587 * VSI onto the next level down in the switch.
8589 * Well, okay, there's one more exception here: don't remove
8590 * the orphan VEBs yet. We'll wait for an explicit remove request
8591 * from up the network stack.
8593 for (n
= 0, i
= 0; i
< pf
->num_alloc_vsi
; i
++) {
8595 pf
->vsi
[i
]->uplink_seid
== uplink_seid
&&
8596 (pf
->vsi
[i
]->flags
& I40E_VSI_FLAG_VEB_OWNER
) == 0) {
8597 n
++; /* count the VSIs */
8600 for (i
= 0; i
< I40E_MAX_VEB
; i
++) {
8603 if (pf
->veb
[i
]->uplink_seid
== uplink_seid
)
8604 n
++; /* count the VEBs */
8605 if (pf
->veb
[i
]->seid
== uplink_seid
)
8608 if (n
== 0 && veb
&& veb
->uplink_seid
!= 0)
8609 i40e_veb_release(veb
);
8615 * i40e_vsi_setup_vectors - Set up the q_vectors for the given VSI
8616 * @vsi: ptr to the VSI
8618 * This should only be called after i40e_vsi_mem_alloc() which allocates the
8619 * corresponding SW VSI structure and initializes num_queue_pairs for the
8620 * newly allocated VSI.
8622 * Returns 0 on success or negative on failure
8624 static int i40e_vsi_setup_vectors(struct i40e_vsi
*vsi
)
8627 struct i40e_pf
*pf
= vsi
->back
;
8629 if (vsi
->q_vectors
[0]) {
8630 dev_info(&pf
->pdev
->dev
, "VSI %d has existing q_vectors\n",
8635 if (vsi
->base_vector
) {
8636 dev_info(&pf
->pdev
->dev
, "VSI %d has non-zero base vector %d\n",
8637 vsi
->seid
, vsi
->base_vector
);
8641 ret
= i40e_vsi_alloc_q_vectors(vsi
);
8643 dev_info(&pf
->pdev
->dev
,
8644 "failed to allocate %d q_vector for VSI %d, ret=%d\n",
8645 vsi
->num_q_vectors
, vsi
->seid
, ret
);
8646 vsi
->num_q_vectors
= 0;
8647 goto vector_setup_out
;
8650 if (vsi
->num_q_vectors
)
8651 vsi
->base_vector
= i40e_get_lump(pf
, pf
->irq_pile
,
8652 vsi
->num_q_vectors
, vsi
->idx
);
8653 if (vsi
->base_vector
< 0) {
8654 dev_info(&pf
->pdev
->dev
,
8655 "failed to get tracking for %d vectors for VSI %d, err=%d\n",
8656 vsi
->num_q_vectors
, vsi
->seid
, vsi
->base_vector
);
8657 i40e_vsi_free_q_vectors(vsi
);
8659 goto vector_setup_out
;
8667 * i40e_vsi_reinit_setup - return and reallocate resources for a VSI
8668 * @vsi: pointer to the vsi.
8670 * This re-allocates a vsi's queue resources.
8672 * Returns pointer to the successfully allocated and configured VSI sw struct
8673 * on success, otherwise returns NULL on failure.
8675 static struct i40e_vsi
*i40e_vsi_reinit_setup(struct i40e_vsi
*vsi
)
8677 struct i40e_pf
*pf
= vsi
->back
;
8681 i40e_put_lump(pf
->qp_pile
, vsi
->base_queue
, vsi
->idx
);
8682 i40e_vsi_clear_rings(vsi
);
8684 i40e_vsi_free_arrays(vsi
, false);
8685 i40e_set_num_rings_in_vsi(vsi
);
8686 ret
= i40e_vsi_alloc_arrays(vsi
, false);
8690 ret
= i40e_get_lump(pf
, pf
->qp_pile
, vsi
->alloc_queue_pairs
, vsi
->idx
);
8692 dev_info(&pf
->pdev
->dev
,
8693 "failed to get tracking for %d queues for VSI %d err=%d\n",
8694 vsi
->alloc_queue_pairs
, vsi
->seid
, ret
);
8697 vsi
->base_queue
= ret
;
8699 /* Update the FW view of the VSI. Force a reset of TC and queue
8700 * layout configurations.
8702 enabled_tc
= pf
->vsi
[pf
->lan_vsi
]->tc_config
.enabled_tc
;
8703 pf
->vsi
[pf
->lan_vsi
]->tc_config
.enabled_tc
= 0;
8704 pf
->vsi
[pf
->lan_vsi
]->seid
= pf
->main_vsi_seid
;
8705 i40e_vsi_config_tc(pf
->vsi
[pf
->lan_vsi
], enabled_tc
);
8707 /* assign it some queues */
8708 ret
= i40e_alloc_rings(vsi
);
8712 /* map all of the rings to the q_vectors */
8713 i40e_vsi_map_rings_to_vectors(vsi
);
8717 i40e_vsi_free_q_vectors(vsi
);
8718 if (vsi
->netdev_registered
) {
8719 vsi
->netdev_registered
= false;
8720 unregister_netdev(vsi
->netdev
);
8721 free_netdev(vsi
->netdev
);
8724 i40e_aq_delete_element(&pf
->hw
, vsi
->seid
, NULL
);
8726 i40e_vsi_clear(vsi
);
8731 * i40e_vsi_setup - Set up a VSI by a given type
8732 * @pf: board private structure
8734 * @uplink_seid: the switch element to link to
8735 * @param1: usage depends upon VSI type. For VF types, indicates VF id
8737 * This allocates the sw VSI structure and its queue resources, then add a VSI
8738 * to the identified VEB.
8740 * Returns pointer to the successfully allocated and configure VSI sw struct on
8741 * success, otherwise returns NULL on failure.
8743 struct i40e_vsi
*i40e_vsi_setup(struct i40e_pf
*pf
, u8 type
,
8744 u16 uplink_seid
, u32 param1
)
8746 struct i40e_vsi
*vsi
= NULL
;
8747 struct i40e_veb
*veb
= NULL
;
8751 /* The requested uplink_seid must be either
8752 * - the PF's port seid
8753 * no VEB is needed because this is the PF
8754 * or this is a Flow Director special case VSI
8755 * - seid of an existing VEB
8756 * - seid of a VSI that owns an existing VEB
8757 * - seid of a VSI that doesn't own a VEB
8758 * a new VEB is created and the VSI becomes the owner
8759 * - seid of the PF VSI, which is what creates the first VEB
8760 * this is a special case of the previous
8762 * Find which uplink_seid we were given and create a new VEB if needed
8764 for (i
= 0; i
< I40E_MAX_VEB
; i
++) {
8765 if (pf
->veb
[i
] && pf
->veb
[i
]->seid
== uplink_seid
) {
8771 if (!veb
&& uplink_seid
!= pf
->mac_seid
) {
8773 for (i
= 0; i
< pf
->num_alloc_vsi
; i
++) {
8774 if (pf
->vsi
[i
] && pf
->vsi
[i
]->seid
== uplink_seid
) {
8780 dev_info(&pf
->pdev
->dev
, "no such uplink_seid %d\n",
8785 if (vsi
->uplink_seid
== pf
->mac_seid
)
8786 veb
= i40e_veb_setup(pf
, 0, pf
->mac_seid
, vsi
->seid
,
8787 vsi
->tc_config
.enabled_tc
);
8788 else if ((vsi
->flags
& I40E_VSI_FLAG_VEB_OWNER
) == 0)
8789 veb
= i40e_veb_setup(pf
, 0, vsi
->uplink_seid
, vsi
->seid
,
8790 vsi
->tc_config
.enabled_tc
);
8792 if (vsi
->seid
!= pf
->vsi
[pf
->lan_vsi
]->seid
) {
8793 dev_info(&vsi
->back
->pdev
->dev
,
8794 "%s: New VSI creation error, uplink seid of LAN VSI expected.\n",
8798 /* We come up by default in VEPA mode if SRIOV is not
8799 * already enabled, in which case we can't force VEPA
8802 if (!(pf
->flags
& I40E_FLAG_VEB_MODE_ENABLED
)) {
8803 veb
->bridge_mode
= BRIDGE_MODE_VEPA
;
8804 pf
->flags
&= ~I40E_FLAG_VEB_MODE_ENABLED
;
8806 i40e_config_bridge_mode(veb
);
8808 for (i
= 0; i
< I40E_MAX_VEB
&& !veb
; i
++) {
8809 if (pf
->veb
[i
] && pf
->veb
[i
]->seid
== vsi
->uplink_seid
)
8813 dev_info(&pf
->pdev
->dev
, "couldn't add VEB\n");
8817 vsi
->flags
|= I40E_VSI_FLAG_VEB_OWNER
;
8818 uplink_seid
= veb
->seid
;
8821 /* get vsi sw struct */
8822 v_idx
= i40e_vsi_mem_alloc(pf
, type
);
8825 vsi
= pf
->vsi
[v_idx
];
8829 vsi
->veb_idx
= (veb
? veb
->idx
: I40E_NO_VEB
);
8831 if (type
== I40E_VSI_MAIN
)
8832 pf
->lan_vsi
= v_idx
;
8833 else if (type
== I40E_VSI_SRIOV
)
8834 vsi
->vf_id
= param1
;
8835 /* assign it some queues */
8836 ret
= i40e_get_lump(pf
, pf
->qp_pile
, vsi
->alloc_queue_pairs
,
8839 dev_info(&pf
->pdev
->dev
,
8840 "failed to get tracking for %d queues for VSI %d err=%d\n",
8841 vsi
->alloc_queue_pairs
, vsi
->seid
, ret
);
8844 vsi
->base_queue
= ret
;
8846 /* get a VSI from the hardware */
8847 vsi
->uplink_seid
= uplink_seid
;
8848 ret
= i40e_add_vsi(vsi
);
8852 switch (vsi
->type
) {
8853 /* setup the netdev if needed */
8855 case I40E_VSI_VMDQ2
:
8857 ret
= i40e_config_netdev(vsi
);
8860 ret
= register_netdev(vsi
->netdev
);
8863 vsi
->netdev_registered
= true;
8864 netif_carrier_off(vsi
->netdev
);
8865 #ifdef CONFIG_I40E_DCB
8866 /* Setup DCB netlink interface */
8867 i40e_dcbnl_setup(vsi
);
8868 #endif /* CONFIG_I40E_DCB */
8872 /* set up vectors and rings if needed */
8873 ret
= i40e_vsi_setup_vectors(vsi
);
8877 ret
= i40e_alloc_rings(vsi
);
8881 /* map all of the rings to the q_vectors */
8882 i40e_vsi_map_rings_to_vectors(vsi
);
8884 i40e_vsi_reset_stats(vsi
);
8888 /* no netdev or rings for the other VSI types */
8895 i40e_vsi_free_q_vectors(vsi
);
8897 if (vsi
->netdev_registered
) {
8898 vsi
->netdev_registered
= false;
8899 unregister_netdev(vsi
->netdev
);
8900 free_netdev(vsi
->netdev
);
8904 i40e_aq_delete_element(&pf
->hw
, vsi
->seid
, NULL
);
8906 i40e_vsi_clear(vsi
);
8912 * i40e_veb_get_bw_info - Query VEB BW information
8913 * @veb: the veb to query
8915 * Query the Tx scheduler BW configuration data for given VEB
8917 static int i40e_veb_get_bw_info(struct i40e_veb
*veb
)
8919 struct i40e_aqc_query_switching_comp_ets_config_resp ets_data
;
8920 struct i40e_aqc_query_switching_comp_bw_config_resp bw_data
;
8921 struct i40e_pf
*pf
= veb
->pf
;
8922 struct i40e_hw
*hw
= &pf
->hw
;
8927 ret
= i40e_aq_query_switch_comp_bw_config(hw
, veb
->seid
,
8930 dev_info(&pf
->pdev
->dev
,
8931 "query veb bw config failed, aq_err=%d\n",
8932 hw
->aq
.asq_last_status
);
8936 ret
= i40e_aq_query_switch_comp_ets_config(hw
, veb
->seid
,
8939 dev_info(&pf
->pdev
->dev
,
8940 "query veb bw ets config failed, aq_err=%d\n",
8941 hw
->aq
.asq_last_status
);
8945 veb
->bw_limit
= le16_to_cpu(ets_data
.port_bw_limit
);
8946 veb
->bw_max_quanta
= ets_data
.tc_bw_max
;
8947 veb
->is_abs_credits
= bw_data
.absolute_credits_enable
;
8948 veb
->enabled_tc
= ets_data
.tc_valid_bits
;
8949 tc_bw_max
= le16_to_cpu(bw_data
.tc_bw_max
[0]) |
8950 (le16_to_cpu(bw_data
.tc_bw_max
[1]) << 16);
8951 for (i
= 0; i
< I40E_MAX_TRAFFIC_CLASS
; i
++) {
8952 veb
->bw_tc_share_credits
[i
] = bw_data
.tc_bw_share_credits
[i
];
8953 veb
->bw_tc_limit_credits
[i
] =
8954 le16_to_cpu(bw_data
.tc_bw_limits
[i
]);
8955 veb
->bw_tc_max_quanta
[i
] = ((tc_bw_max
>> (i
*4)) & 0x7);
8963 * i40e_veb_mem_alloc - Allocates the next available struct veb in the PF
8964 * @pf: board private structure
8966 * On error: returns error code (negative)
8967 * On success: returns vsi index in PF (positive)
8969 static int i40e_veb_mem_alloc(struct i40e_pf
*pf
)
8972 struct i40e_veb
*veb
;
8975 /* Need to protect the allocation of switch elements at the PF level */
8976 mutex_lock(&pf
->switch_mutex
);
8978 /* VEB list may be fragmented if VEB creation/destruction has
8979 * been happening. We can afford to do a quick scan to look
8980 * for any free slots in the list.
8982 * find next empty veb slot, looping back around if necessary
8985 while ((i
< I40E_MAX_VEB
) && (pf
->veb
[i
] != NULL
))
8987 if (i
>= I40E_MAX_VEB
) {
8989 goto err_alloc_veb
; /* out of VEB slots! */
8992 veb
= kzalloc(sizeof(*veb
), GFP_KERNEL
);
8999 veb
->enabled_tc
= 1;
9004 mutex_unlock(&pf
->switch_mutex
);
9009 * i40e_switch_branch_release - Delete a branch of the switch tree
9010 * @branch: where to start deleting
9012 * This uses recursion to find the tips of the branch to be
9013 * removed, deleting until we get back to and can delete this VEB.
9015 static void i40e_switch_branch_release(struct i40e_veb
*branch
)
9017 struct i40e_pf
*pf
= branch
->pf
;
9018 u16 branch_seid
= branch
->seid
;
9019 u16 veb_idx
= branch
->idx
;
9022 /* release any VEBs on this VEB - RECURSION */
9023 for (i
= 0; i
< I40E_MAX_VEB
; i
++) {
9026 if (pf
->veb
[i
]->uplink_seid
== branch
->seid
)
9027 i40e_switch_branch_release(pf
->veb
[i
]);
9030 /* Release the VSIs on this VEB, but not the owner VSI.
9032 * NOTE: Removing the last VSI on a VEB has the SIDE EFFECT of removing
9033 * the VEB itself, so don't use (*branch) after this loop.
9035 for (i
= 0; i
< pf
->num_alloc_vsi
; i
++) {
9038 if (pf
->vsi
[i
]->uplink_seid
== branch_seid
&&
9039 (pf
->vsi
[i
]->flags
& I40E_VSI_FLAG_VEB_OWNER
) == 0) {
9040 i40e_vsi_release(pf
->vsi
[i
]);
9044 /* There's one corner case where the VEB might not have been
9045 * removed, so double check it here and remove it if needed.
9046 * This case happens if the veb was created from the debugfs
9047 * commands and no VSIs were added to it.
9049 if (pf
->veb
[veb_idx
])
9050 i40e_veb_release(pf
->veb
[veb_idx
]);
9054 * i40e_veb_clear - remove veb struct
9055 * @veb: the veb to remove
9057 static void i40e_veb_clear(struct i40e_veb
*veb
)
9063 struct i40e_pf
*pf
= veb
->pf
;
9065 mutex_lock(&pf
->switch_mutex
);
9066 if (pf
->veb
[veb
->idx
] == veb
)
9067 pf
->veb
[veb
->idx
] = NULL
;
9068 mutex_unlock(&pf
->switch_mutex
);
9075 * i40e_veb_release - Delete a VEB and free its resources
9076 * @veb: the VEB being removed
9078 void i40e_veb_release(struct i40e_veb
*veb
)
9080 struct i40e_vsi
*vsi
= NULL
;
9086 /* find the remaining VSI and check for extras */
9087 for (i
= 0; i
< pf
->num_alloc_vsi
; i
++) {
9088 if (pf
->vsi
[i
] && pf
->vsi
[i
]->uplink_seid
== veb
->seid
) {
9094 dev_info(&pf
->pdev
->dev
,
9095 "can't remove VEB %d with %d VSIs left\n",
9100 /* move the remaining VSI to uplink veb */
9101 vsi
->flags
&= ~I40E_VSI_FLAG_VEB_OWNER
;
9102 if (veb
->uplink_seid
) {
9103 vsi
->uplink_seid
= veb
->uplink_seid
;
9104 if (veb
->uplink_seid
== pf
->mac_seid
)
9105 vsi
->veb_idx
= I40E_NO_VEB
;
9107 vsi
->veb_idx
= veb
->veb_idx
;
9110 vsi
->uplink_seid
= pf
->vsi
[pf
->lan_vsi
]->uplink_seid
;
9111 vsi
->veb_idx
= pf
->vsi
[pf
->lan_vsi
]->veb_idx
;
9114 i40e_aq_delete_element(&pf
->hw
, veb
->seid
, NULL
);
9115 i40e_veb_clear(veb
);
9119 * i40e_add_veb - create the VEB in the switch
9120 * @veb: the VEB to be instantiated
9121 * @vsi: the controlling VSI
9123 static int i40e_add_veb(struct i40e_veb
*veb
, struct i40e_vsi
*vsi
)
9125 bool is_default
= false;
9126 bool is_cloud
= false;
9129 /* get a VEB from the hardware */
9130 ret
= i40e_aq_add_veb(&veb
->pf
->hw
, veb
->uplink_seid
, vsi
->seid
,
9131 veb
->enabled_tc
, is_default
,
9132 is_cloud
, &veb
->seid
, NULL
);
9134 dev_info(&veb
->pf
->pdev
->dev
,
9135 "couldn't add VEB, err %d, aq_err %d\n",
9136 ret
, veb
->pf
->hw
.aq
.asq_last_status
);
9140 /* get statistics counter */
9141 ret
= i40e_aq_get_veb_parameters(&veb
->pf
->hw
, veb
->seid
, NULL
, NULL
,
9142 &veb
->stats_idx
, NULL
, NULL
, NULL
);
9144 dev_info(&veb
->pf
->pdev
->dev
,
9145 "couldn't get VEB statistics idx, err %d, aq_err %d\n",
9146 ret
, veb
->pf
->hw
.aq
.asq_last_status
);
9149 ret
= i40e_veb_get_bw_info(veb
);
9151 dev_info(&veb
->pf
->pdev
->dev
,
9152 "couldn't get VEB bw info, err %d, aq_err %d\n",
9153 ret
, veb
->pf
->hw
.aq
.asq_last_status
);
9154 i40e_aq_delete_element(&veb
->pf
->hw
, veb
->seid
, NULL
);
9158 vsi
->uplink_seid
= veb
->seid
;
9159 vsi
->veb_idx
= veb
->idx
;
9160 vsi
->flags
|= I40E_VSI_FLAG_VEB_OWNER
;
9166 * i40e_veb_setup - Set up a VEB
9167 * @pf: board private structure
9168 * @flags: VEB setup flags
9169 * @uplink_seid: the switch element to link to
9170 * @vsi_seid: the initial VSI seid
9171 * @enabled_tc: Enabled TC bit-map
9173 * This allocates the sw VEB structure and links it into the switch
9174 * It is possible and legal for this to be a duplicate of an already
9175 * existing VEB. It is also possible for both uplink and vsi seids
9176 * to be zero, in order to create a floating VEB.
9178 * Returns pointer to the successfully allocated VEB sw struct on
9179 * success, otherwise returns NULL on failure.
9181 struct i40e_veb
*i40e_veb_setup(struct i40e_pf
*pf
, u16 flags
,
9182 u16 uplink_seid
, u16 vsi_seid
,
9185 struct i40e_veb
*veb
, *uplink_veb
= NULL
;
9186 int vsi_idx
, veb_idx
;
9189 /* if one seid is 0, the other must be 0 to create a floating relay */
9190 if ((uplink_seid
== 0 || vsi_seid
== 0) &&
9191 (uplink_seid
+ vsi_seid
!= 0)) {
9192 dev_info(&pf
->pdev
->dev
,
9193 "one, not both seid's are 0: uplink=%d vsi=%d\n",
9194 uplink_seid
, vsi_seid
);
9198 /* make sure there is such a vsi and uplink */
9199 for (vsi_idx
= 0; vsi_idx
< pf
->num_alloc_vsi
; vsi_idx
++)
9200 if (pf
->vsi
[vsi_idx
] && pf
->vsi
[vsi_idx
]->seid
== vsi_seid
)
9202 if (vsi_idx
>= pf
->num_alloc_vsi
&& vsi_seid
!= 0) {
9203 dev_info(&pf
->pdev
->dev
, "vsi seid %d not found\n",
9208 if (uplink_seid
&& uplink_seid
!= pf
->mac_seid
) {
9209 for (veb_idx
= 0; veb_idx
< I40E_MAX_VEB
; veb_idx
++) {
9210 if (pf
->veb
[veb_idx
] &&
9211 pf
->veb
[veb_idx
]->seid
== uplink_seid
) {
9212 uplink_veb
= pf
->veb
[veb_idx
];
9217 dev_info(&pf
->pdev
->dev
,
9218 "uplink seid %d not found\n", uplink_seid
);
9223 /* get veb sw struct */
9224 veb_idx
= i40e_veb_mem_alloc(pf
);
9227 veb
= pf
->veb
[veb_idx
];
9229 veb
->uplink_seid
= uplink_seid
;
9230 veb
->veb_idx
= (uplink_veb
? uplink_veb
->idx
: I40E_NO_VEB
);
9231 veb
->enabled_tc
= (enabled_tc
? enabled_tc
: 0x1);
9233 /* create the VEB in the switch */
9234 ret
= i40e_add_veb(veb
, pf
->vsi
[vsi_idx
]);
9237 if (vsi_idx
== pf
->lan_vsi
)
9238 pf
->lan_veb
= veb
->idx
;
9243 i40e_veb_clear(veb
);
9249 * i40e_setup_pf_switch_element - set PF vars based on switch type
9250 * @pf: board private structure
9251 * @ele: element we are building info from
9252 * @num_reported: total number of elements
9253 * @printconfig: should we print the contents
9255 * helper function to assist in extracting a few useful SEID values.
9257 static void i40e_setup_pf_switch_element(struct i40e_pf
*pf
,
9258 struct i40e_aqc_switch_config_element_resp
*ele
,
9259 u16 num_reported
, bool printconfig
)
9261 u16 downlink_seid
= le16_to_cpu(ele
->downlink_seid
);
9262 u16 uplink_seid
= le16_to_cpu(ele
->uplink_seid
);
9263 u8 element_type
= ele
->element_type
;
9264 u16 seid
= le16_to_cpu(ele
->seid
);
9267 dev_info(&pf
->pdev
->dev
,
9268 "type=%d seid=%d uplink=%d downlink=%d\n",
9269 element_type
, seid
, uplink_seid
, downlink_seid
);
9271 switch (element_type
) {
9272 case I40E_SWITCH_ELEMENT_TYPE_MAC
:
9273 pf
->mac_seid
= seid
;
9275 case I40E_SWITCH_ELEMENT_TYPE_VEB
:
9277 if (uplink_seid
!= pf
->mac_seid
)
9279 if (pf
->lan_veb
== I40E_NO_VEB
) {
9282 /* find existing or else empty VEB */
9283 for (v
= 0; v
< I40E_MAX_VEB
; v
++) {
9284 if (pf
->veb
[v
] && (pf
->veb
[v
]->seid
== seid
)) {
9289 if (pf
->lan_veb
== I40E_NO_VEB
) {
9290 v
= i40e_veb_mem_alloc(pf
);
9297 pf
->veb
[pf
->lan_veb
]->seid
= seid
;
9298 pf
->veb
[pf
->lan_veb
]->uplink_seid
= pf
->mac_seid
;
9299 pf
->veb
[pf
->lan_veb
]->pf
= pf
;
9300 pf
->veb
[pf
->lan_veb
]->veb_idx
= I40E_NO_VEB
;
9302 case I40E_SWITCH_ELEMENT_TYPE_VSI
:
9303 if (num_reported
!= 1)
9305 /* This is immediately after a reset so we can assume this is
9308 pf
->mac_seid
= uplink_seid
;
9309 pf
->pf_seid
= downlink_seid
;
9310 pf
->main_vsi_seid
= seid
;
9312 dev_info(&pf
->pdev
->dev
,
9313 "pf_seid=%d main_vsi_seid=%d\n",
9314 pf
->pf_seid
, pf
->main_vsi_seid
);
9316 case I40E_SWITCH_ELEMENT_TYPE_PF
:
9317 case I40E_SWITCH_ELEMENT_TYPE_VF
:
9318 case I40E_SWITCH_ELEMENT_TYPE_EMP
:
9319 case I40E_SWITCH_ELEMENT_TYPE_BMC
:
9320 case I40E_SWITCH_ELEMENT_TYPE_PE
:
9321 case I40E_SWITCH_ELEMENT_TYPE_PA
:
9322 /* ignore these for now */
9325 dev_info(&pf
->pdev
->dev
, "unknown element type=%d seid=%d\n",
9326 element_type
, seid
);
9332 * i40e_fetch_switch_configuration - Get switch config from firmware
9333 * @pf: board private structure
9334 * @printconfig: should we print the contents
9336 * Get the current switch configuration from the device and
9337 * extract a few useful SEID values.
9339 int i40e_fetch_switch_configuration(struct i40e_pf
*pf
, bool printconfig
)
9341 struct i40e_aqc_get_switch_config_resp
*sw_config
;
9347 aq_buf
= kzalloc(I40E_AQ_LARGE_BUF
, GFP_KERNEL
);
9351 sw_config
= (struct i40e_aqc_get_switch_config_resp
*)aq_buf
;
9353 u16 num_reported
, num_total
;
9355 ret
= i40e_aq_get_switch_config(&pf
->hw
, sw_config
,
9359 dev_info(&pf
->pdev
->dev
,
9360 "get switch config failed %d aq_err=%x\n",
9361 ret
, pf
->hw
.aq
.asq_last_status
);
9366 num_reported
= le16_to_cpu(sw_config
->header
.num_reported
);
9367 num_total
= le16_to_cpu(sw_config
->header
.num_total
);
9370 dev_info(&pf
->pdev
->dev
,
9371 "header: %d reported %d total\n",
9372 num_reported
, num_total
);
9374 for (i
= 0; i
< num_reported
; i
++) {
9375 struct i40e_aqc_switch_config_element_resp
*ele
=
9376 &sw_config
->element
[i
];
9378 i40e_setup_pf_switch_element(pf
, ele
, num_reported
,
9381 } while (next_seid
!= 0);
9388 * i40e_setup_pf_switch - Setup the HW switch on startup or after reset
9389 * @pf: board private structure
9390 * @reinit: if the Main VSI needs to re-initialized.
9392 * Returns 0 on success, negative value on failure
9394 static int i40e_setup_pf_switch(struct i40e_pf
*pf
, bool reinit
)
9398 /* find out what's out there already */
9399 ret
= i40e_fetch_switch_configuration(pf
, false);
9401 dev_info(&pf
->pdev
->dev
,
9402 "couldn't fetch switch config, err %d, aq_err %d\n",
9403 ret
, pf
->hw
.aq
.asq_last_status
);
9406 i40e_pf_reset_stats(pf
);
9408 /* first time setup */
9409 if (pf
->lan_vsi
== I40E_NO_VSI
|| reinit
) {
9410 struct i40e_vsi
*vsi
= NULL
;
9413 /* Set up the PF VSI associated with the PF's main VSI
9414 * that is already in the HW switch
9416 if (pf
->lan_veb
!= I40E_NO_VEB
&& pf
->veb
[pf
->lan_veb
])
9417 uplink_seid
= pf
->veb
[pf
->lan_veb
]->seid
;
9419 uplink_seid
= pf
->mac_seid
;
9420 if (pf
->lan_vsi
== I40E_NO_VSI
)
9421 vsi
= i40e_vsi_setup(pf
, I40E_VSI_MAIN
, uplink_seid
, 0);
9423 vsi
= i40e_vsi_reinit_setup(pf
->vsi
[pf
->lan_vsi
]);
9425 dev_info(&pf
->pdev
->dev
, "setup of MAIN VSI failed\n");
9426 i40e_fdir_teardown(pf
);
9430 /* force a reset of TC and queue layout configurations */
9431 u8 enabled_tc
= pf
->vsi
[pf
->lan_vsi
]->tc_config
.enabled_tc
;
9432 pf
->vsi
[pf
->lan_vsi
]->tc_config
.enabled_tc
= 0;
9433 pf
->vsi
[pf
->lan_vsi
]->seid
= pf
->main_vsi_seid
;
9434 i40e_vsi_config_tc(pf
->vsi
[pf
->lan_vsi
], enabled_tc
);
9436 i40e_vlan_stripping_disable(pf
->vsi
[pf
->lan_vsi
]);
9438 i40e_fdir_sb_setup(pf
);
9440 /* Setup static PF queue filter control settings */
9441 ret
= i40e_setup_pf_filter_control(pf
);
9443 dev_info(&pf
->pdev
->dev
, "setup_pf_filter_control failed: %d\n",
9445 /* Failure here should not stop continuing other steps */
9448 /* enable RSS in the HW, even for only one queue, as the stack can use
9451 if ((pf
->flags
& I40E_FLAG_RSS_ENABLED
))
9452 i40e_config_rss(pf
);
9454 /* fill in link information and enable LSE reporting */
9455 i40e_aq_get_link_info(&pf
->hw
, true, NULL
, NULL
);
9456 i40e_link_event(pf
);
9458 /* Initialize user-specific link properties */
9459 pf
->fc_autoneg_status
= ((pf
->hw
.phy
.link_info
.an_info
&
9460 I40E_AQ_AN_COMPLETED
) ? true : false);
9468 * i40e_determine_queue_usage - Work out queue distribution
9469 * @pf: board private structure
9471 static void i40e_determine_queue_usage(struct i40e_pf
*pf
)
9475 pf
->num_lan_qps
= 0;
9477 pf
->num_fcoe_qps
= 0;
9480 /* Find the max queues to be put into basic use. We'll always be
9481 * using TC0, whether or not DCB is running, and TC0 will get the
9484 queues_left
= pf
->hw
.func_caps
.num_tx_qp
;
9486 if ((queues_left
== 1) ||
9487 !(pf
->flags
& I40E_FLAG_MSIX_ENABLED
)) {
9488 /* one qp for PF, no queues for anything else */
9490 pf
->rss_size
= pf
->num_lan_qps
= 1;
9492 /* make sure all the fancies are disabled */
9493 pf
->flags
&= ~(I40E_FLAG_RSS_ENABLED
|
9495 I40E_FLAG_FCOE_ENABLED
|
9497 I40E_FLAG_FD_SB_ENABLED
|
9498 I40E_FLAG_FD_ATR_ENABLED
|
9499 I40E_FLAG_DCB_CAPABLE
|
9500 I40E_FLAG_SRIOV_ENABLED
|
9501 I40E_FLAG_VMDQ_ENABLED
);
9502 } else if (!(pf
->flags
& (I40E_FLAG_RSS_ENABLED
|
9503 I40E_FLAG_FD_SB_ENABLED
|
9504 I40E_FLAG_FD_ATR_ENABLED
|
9505 I40E_FLAG_DCB_CAPABLE
))) {
9507 pf
->rss_size
= pf
->num_lan_qps
= 1;
9508 queues_left
-= pf
->num_lan_qps
;
9510 pf
->flags
&= ~(I40E_FLAG_RSS_ENABLED
|
9512 I40E_FLAG_FCOE_ENABLED
|
9514 I40E_FLAG_FD_SB_ENABLED
|
9515 I40E_FLAG_FD_ATR_ENABLED
|
9516 I40E_FLAG_DCB_ENABLED
|
9517 I40E_FLAG_VMDQ_ENABLED
);
9519 /* Not enough queues for all TCs */
9520 if ((pf
->flags
& I40E_FLAG_DCB_CAPABLE
) &&
9521 (queues_left
< I40E_MAX_TRAFFIC_CLASS
)) {
9522 pf
->flags
&= ~I40E_FLAG_DCB_CAPABLE
;
9523 dev_info(&pf
->pdev
->dev
, "not enough queues for DCB. DCB is disabled.\n");
9525 pf
->num_lan_qps
= max_t(int, pf
->rss_size_max
,
9527 pf
->num_lan_qps
= min_t(int, pf
->num_lan_qps
,
9528 pf
->hw
.func_caps
.num_tx_qp
);
9530 queues_left
-= pf
->num_lan_qps
;
9534 if (pf
->flags
& I40E_FLAG_FCOE_ENABLED
) {
9535 if (I40E_DEFAULT_FCOE
<= queues_left
) {
9536 pf
->num_fcoe_qps
= I40E_DEFAULT_FCOE
;
9537 } else if (I40E_MINIMUM_FCOE
<= queues_left
) {
9538 pf
->num_fcoe_qps
= I40E_MINIMUM_FCOE
;
9540 pf
->num_fcoe_qps
= 0;
9541 pf
->flags
&= ~I40E_FLAG_FCOE_ENABLED
;
9542 dev_info(&pf
->pdev
->dev
, "not enough queues for FCoE. FCoE feature will be disabled\n");
9545 queues_left
-= pf
->num_fcoe_qps
;
9549 if (pf
->flags
& I40E_FLAG_FD_SB_ENABLED
) {
9550 if (queues_left
> 1) {
9551 queues_left
-= 1; /* save 1 queue for FD */
9553 pf
->flags
&= ~I40E_FLAG_FD_SB_ENABLED
;
9554 dev_info(&pf
->pdev
->dev
, "not enough queues for Flow Director. Flow Director feature is disabled\n");
9558 if ((pf
->flags
& I40E_FLAG_SRIOV_ENABLED
) &&
9559 pf
->num_vf_qps
&& pf
->num_req_vfs
&& queues_left
) {
9560 pf
->num_req_vfs
= min_t(int, pf
->num_req_vfs
,
9561 (queues_left
/ pf
->num_vf_qps
));
9562 queues_left
-= (pf
->num_req_vfs
* pf
->num_vf_qps
);
9565 if ((pf
->flags
& I40E_FLAG_VMDQ_ENABLED
) &&
9566 pf
->num_vmdq_vsis
&& pf
->num_vmdq_qps
&& queues_left
) {
9567 pf
->num_vmdq_vsis
= min_t(int, pf
->num_vmdq_vsis
,
9568 (queues_left
/ pf
->num_vmdq_qps
));
9569 queues_left
-= (pf
->num_vmdq_vsis
* pf
->num_vmdq_qps
);
9572 pf
->queues_left
= queues_left
;
9574 dev_info(&pf
->pdev
->dev
, "fcoe queues = %d\n", pf
->num_fcoe_qps
);
9579 * i40e_setup_pf_filter_control - Setup PF static filter control
9580 * @pf: PF to be setup
9582 * i40e_setup_pf_filter_control sets up a PF's initial filter control
9583 * settings. If PE/FCoE are enabled then it will also set the per PF
9584 * based filter sizes required for them. It also enables Flow director,
9585 * ethertype and macvlan type filter settings for the pf.
9587 * Returns 0 on success, negative on failure
9589 static int i40e_setup_pf_filter_control(struct i40e_pf
*pf
)
9591 struct i40e_filter_control_settings
*settings
= &pf
->filter_settings
;
9593 settings
->hash_lut_size
= I40E_HASH_LUT_SIZE_128
;
9595 /* Flow Director is enabled */
9596 if (pf
->flags
& (I40E_FLAG_FD_SB_ENABLED
| I40E_FLAG_FD_ATR_ENABLED
))
9597 settings
->enable_fdir
= true;
9599 /* Ethtype and MACVLAN filters enabled for PF */
9600 settings
->enable_ethtype
= true;
9601 settings
->enable_macvlan
= true;
9603 if (i40e_set_filter_control(&pf
->hw
, settings
))
9609 #define INFO_STRING_LEN 255
9610 static void i40e_print_features(struct i40e_pf
*pf
)
9612 struct i40e_hw
*hw
= &pf
->hw
;
9615 string
= kzalloc(INFO_STRING_LEN
, GFP_KERNEL
);
9617 dev_err(&pf
->pdev
->dev
, "Features string allocation failed\n");
9623 buf
+= sprintf(string
, "Features: PF-id[%d] ", hw
->pf_id
);
9624 #ifdef CONFIG_PCI_IOV
9625 buf
+= sprintf(buf
, "VFs: %d ", pf
->num_req_vfs
);
9627 buf
+= sprintf(buf
, "VSIs: %d QP: %d RX: %s ",
9628 pf
->hw
.func_caps
.num_vsis
,
9629 pf
->vsi
[pf
->lan_vsi
]->num_queue_pairs
,
9630 pf
->flags
& I40E_FLAG_RX_PS_ENABLED
? "PS" : "1BUF");
9632 if (pf
->flags
& I40E_FLAG_RSS_ENABLED
)
9633 buf
+= sprintf(buf
, "RSS ");
9634 if (pf
->flags
& I40E_FLAG_FD_ATR_ENABLED
)
9635 buf
+= sprintf(buf
, "FD_ATR ");
9636 if (pf
->flags
& I40E_FLAG_FD_SB_ENABLED
) {
9637 buf
+= sprintf(buf
, "FD_SB ");
9638 buf
+= sprintf(buf
, "NTUPLE ");
9640 if (pf
->flags
& I40E_FLAG_DCB_CAPABLE
)
9641 buf
+= sprintf(buf
, "DCB ");
9642 if (pf
->flags
& I40E_FLAG_PTP
)
9643 buf
+= sprintf(buf
, "PTP ");
9645 if (pf
->flags
& I40E_FLAG_FCOE_ENABLED
)
9646 buf
+= sprintf(buf
, "FCOE ");
9649 BUG_ON(buf
> (string
+ INFO_STRING_LEN
));
9650 dev_info(&pf
->pdev
->dev
, "%s\n", string
);
9655 * i40e_probe - Device initialization routine
9656 * @pdev: PCI device information struct
9657 * @ent: entry in i40e_pci_tbl
9659 * i40e_probe initializes a PF identified by a pci_dev structure.
9660 * The OS initialization, configuring of the PF private structure,
9661 * and a hardware reset occur.
9663 * Returns 0 on success, negative on failure
9665 static int i40e_probe(struct pci_dev
*pdev
, const struct pci_device_id
*ent
)
9667 struct i40e_aq_get_phy_abilities_resp abilities
;
9668 unsigned long ioremap_len
;
9671 static u16 pfs_found
;
9677 err
= pci_enable_device_mem(pdev
);
9681 /* set up for high or low dma */
9682 err
= dma_set_mask_and_coherent(&pdev
->dev
, DMA_BIT_MASK(64));
9684 err
= dma_set_mask_and_coherent(&pdev
->dev
, DMA_BIT_MASK(32));
9687 "DMA configuration failed: 0x%x\n", err
);
9692 /* set up pci connections */
9693 err
= pci_request_selected_regions(pdev
, pci_select_bars(pdev
,
9694 IORESOURCE_MEM
), i40e_driver_name
);
9696 dev_info(&pdev
->dev
,
9697 "pci_request_selected_regions failed %d\n", err
);
9701 pci_enable_pcie_error_reporting(pdev
);
9702 pci_set_master(pdev
);
9704 /* Now that we have a PCI connection, we need to do the
9705 * low level device setup. This is primarily setting up
9706 * the Admin Queue structures and then querying for the
9707 * device's current profile information.
9709 pf
= kzalloc(sizeof(*pf
), GFP_KERNEL
);
9716 set_bit(__I40E_DOWN
, &pf
->state
);
9721 ioremap_len
= min_t(unsigned long, pci_resource_len(pdev
, 0),
9722 I40E_MAX_CSR_SPACE
);
9724 hw
->hw_addr
= ioremap(pci_resource_start(pdev
, 0), ioremap_len
);
9727 dev_info(&pdev
->dev
, "ioremap(0x%04x, 0x%04x) failed: 0x%x\n",
9728 (unsigned int)pci_resource_start(pdev
, 0),
9729 (unsigned int)pci_resource_len(pdev
, 0), err
);
9732 hw
->vendor_id
= pdev
->vendor
;
9733 hw
->device_id
= pdev
->device
;
9734 pci_read_config_byte(pdev
, PCI_REVISION_ID
, &hw
->revision_id
);
9735 hw
->subsystem_vendor_id
= pdev
->subsystem_vendor
;
9736 hw
->subsystem_device_id
= pdev
->subsystem_device
;
9737 hw
->bus
.device
= PCI_SLOT(pdev
->devfn
);
9738 hw
->bus
.func
= PCI_FUNC(pdev
->devfn
);
9739 pf
->instance
= pfs_found
;
9742 pf
->msg_enable
= pf
->hw
.debug_mask
;
9743 pf
->msg_enable
= debug
;
9746 /* do a special CORER for clearing PXE mode once at init */
9747 if (hw
->revision_id
== 0 &&
9748 (rd32(hw
, I40E_GLLAN_RCTL_0
) & I40E_GLLAN_RCTL_0_PXE_MODE_MASK
)) {
9749 wr32(hw
, I40E_GLGEN_RTRIG
, I40E_GLGEN_RTRIG_CORER_MASK
);
9754 i40e_clear_pxe_mode(hw
);
9757 /* Reset here to make sure all is clean and to define PF 'n' */
9759 err
= i40e_pf_reset(hw
);
9761 dev_info(&pdev
->dev
, "Initial pf_reset failed: %d\n", err
);
9766 hw
->aq
.num_arq_entries
= I40E_AQ_LEN
;
9767 hw
->aq
.num_asq_entries
= I40E_AQ_LEN
;
9768 hw
->aq
.arq_buf_size
= I40E_MAX_AQ_BUF_SIZE
;
9769 hw
->aq
.asq_buf_size
= I40E_MAX_AQ_BUF_SIZE
;
9770 pf
->adminq_work_limit
= I40E_AQ_WORK_LIMIT
;
9772 snprintf(pf
->int_name
, sizeof(pf
->int_name
) - 1,
9774 dev_driver_string(&pf
->pdev
->dev
), dev_name(&pdev
->dev
));
9776 err
= i40e_init_shared_code(hw
);
9778 dev_info(&pdev
->dev
, "init_shared_code failed: %d\n", err
);
9782 /* set up a default setting for link flow control */
9783 pf
->hw
.fc
.requested_mode
= I40E_FC_NONE
;
9785 err
= i40e_init_adminq(hw
);
9786 dev_info(&pdev
->dev
, "%s\n", i40e_fw_version_str(hw
));
9788 dev_info(&pdev
->dev
,
9789 "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");
9793 if (hw
->aq
.api_maj_ver
== I40E_FW_API_VERSION_MAJOR
&&
9794 hw
->aq
.api_min_ver
> I40E_FW_API_VERSION_MINOR
)
9795 dev_info(&pdev
->dev
,
9796 "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");
9797 else if (hw
->aq
.api_maj_ver
< I40E_FW_API_VERSION_MAJOR
||
9798 hw
->aq
.api_min_ver
< (I40E_FW_API_VERSION_MINOR
- 1))
9799 dev_info(&pdev
->dev
,
9800 "The driver for the device detected an older version of the NVM image than expected. Please update the NVM image.\n");
9802 i40e_verify_eeprom(pf
);
9804 /* Rev 0 hardware was never productized */
9805 if (hw
->revision_id
< 1)
9806 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");
9808 i40e_clear_pxe_mode(hw
);
9809 err
= i40e_get_capabilities(pf
);
9811 goto err_adminq_setup
;
9813 err
= i40e_sw_init(pf
);
9815 dev_info(&pdev
->dev
, "sw_init failed: %d\n", err
);
9819 err
= i40e_init_lan_hmc(hw
, hw
->func_caps
.num_tx_qp
,
9820 hw
->func_caps
.num_rx_qp
,
9821 pf
->fcoe_hmc_cntx_num
, pf
->fcoe_hmc_filt_num
);
9823 dev_info(&pdev
->dev
, "init_lan_hmc failed: %d\n", err
);
9824 goto err_init_lan_hmc
;
9827 err
= i40e_configure_lan_hmc(hw
, I40E_HMC_MODEL_DIRECT_ONLY
);
9829 dev_info(&pdev
->dev
, "configure_lan_hmc failed: %d\n", err
);
9831 goto err_configure_lan_hmc
;
9834 /* Disable LLDP for NICs that have firmware versions lower than v4.3.
9835 * Ignore error return codes because if it was already disabled via
9836 * hardware settings this will fail
9838 if (((pf
->hw
.aq
.fw_maj_ver
== 4) && (pf
->hw
.aq
.fw_min_ver
< 3)) ||
9839 (pf
->hw
.aq
.fw_maj_ver
< 4)) {
9840 dev_info(&pdev
->dev
, "Stopping firmware LLDP agent.\n");
9841 i40e_aq_stop_lldp(hw
, true, NULL
);
9844 i40e_get_mac_addr(hw
, hw
->mac
.addr
);
9845 if (!is_valid_ether_addr(hw
->mac
.addr
)) {
9846 dev_info(&pdev
->dev
, "invalid MAC address %pM\n", hw
->mac
.addr
);
9850 dev_info(&pdev
->dev
, "MAC address: %pM\n", hw
->mac
.addr
);
9851 ether_addr_copy(hw
->mac
.perm_addr
, hw
->mac
.addr
);
9852 i40e_get_port_mac_addr(hw
, hw
->mac
.port_addr
);
9853 if (is_valid_ether_addr(hw
->mac
.port_addr
))
9854 pf
->flags
|= I40E_FLAG_PORT_ID_VALID
;
9856 err
= i40e_get_san_mac_addr(hw
, hw
->mac
.san_addr
);
9858 dev_info(&pdev
->dev
,
9859 "(non-fatal) SAN MAC retrieval failed: %d\n", err
);
9860 if (!is_valid_ether_addr(hw
->mac
.san_addr
)) {
9861 dev_warn(&pdev
->dev
, "invalid SAN MAC address %pM, falling back to LAN MAC\n",
9863 ether_addr_copy(hw
->mac
.san_addr
, hw
->mac
.addr
);
9865 dev_info(&pf
->pdev
->dev
, "SAN MAC: %pM\n", hw
->mac
.san_addr
);
9866 #endif /* I40E_FCOE */
9868 pci_set_drvdata(pdev
, pf
);
9869 pci_save_state(pdev
);
9870 #ifdef CONFIG_I40E_DCB
9871 err
= i40e_init_pf_dcb(pf
);
9873 dev_info(&pdev
->dev
, "DCB init failed %d, disabled\n", err
);
9874 pf
->flags
&= ~I40E_FLAG_DCB_CAPABLE
;
9875 /* Continue without DCB enabled */
9877 #endif /* CONFIG_I40E_DCB */
9879 /* set up periodic task facility */
9880 setup_timer(&pf
->service_timer
, i40e_service_timer
, (unsigned long)pf
);
9881 pf
->service_timer_period
= HZ
;
9883 INIT_WORK(&pf
->service_task
, i40e_service_task
);
9884 clear_bit(__I40E_SERVICE_SCHED
, &pf
->state
);
9885 pf
->flags
|= I40E_FLAG_NEED_LINK_UPDATE
;
9886 pf
->link_check_timeout
= jiffies
;
9888 /* WoL defaults to disabled */
9890 device_set_wakeup_enable(&pf
->pdev
->dev
, pf
->wol_en
);
9892 /* set up the main switch operations */
9893 i40e_determine_queue_usage(pf
);
9894 err
= i40e_init_interrupt_scheme(pf
);
9896 goto err_switch_setup
;
9898 /* The number of VSIs reported by the FW is the minimum guaranteed
9899 * to us; HW supports far more and we share the remaining pool with
9900 * the other PFs. We allocate space for more than the guarantee with
9901 * the understanding that we might not get them all later.
9903 if (pf
->hw
.func_caps
.num_vsis
< I40E_MIN_VSI_ALLOC
)
9904 pf
->num_alloc_vsi
= I40E_MIN_VSI_ALLOC
;
9906 pf
->num_alloc_vsi
= pf
->hw
.func_caps
.num_vsis
;
9908 /* Set up the *vsi struct and our local tracking of the MAIN PF vsi. */
9909 len
= sizeof(struct i40e_vsi
*) * pf
->num_alloc_vsi
;
9910 pf
->vsi
= kzalloc(len
, GFP_KERNEL
);
9913 goto err_switch_setup
;
9916 #ifdef CONFIG_PCI_IOV
9917 /* prep for VF support */
9918 if ((pf
->flags
& I40E_FLAG_SRIOV_ENABLED
) &&
9919 (pf
->flags
& I40E_FLAG_MSIX_ENABLED
) &&
9920 !test_bit(__I40E_BAD_EEPROM
, &pf
->state
)) {
9921 if (pci_num_vf(pdev
))
9922 pf
->flags
|= I40E_FLAG_VEB_MODE_ENABLED
;
9925 err
= i40e_setup_pf_switch(pf
, false);
9927 dev_info(&pdev
->dev
, "setup_pf_switch failed: %d\n", err
);
9930 /* if FDIR VSI was set up, start it now */
9931 for (i
= 0; i
< pf
->num_alloc_vsi
; i
++) {
9932 if (pf
->vsi
[i
] && pf
->vsi
[i
]->type
== I40E_VSI_FDIR
) {
9933 i40e_vsi_open(pf
->vsi
[i
]);
9938 /* driver is only interested in link up/down and module qualification
9939 * reports from firmware
9941 err
= i40e_aq_set_phy_int_mask(&pf
->hw
,
9942 I40E_AQ_EVENT_LINK_UPDOWN
|
9943 I40E_AQ_EVENT_MODULE_QUAL_FAIL
, NULL
);
9945 dev_info(&pf
->pdev
->dev
, "set phy mask fail, aq_err %d\n", err
);
9947 if (((pf
->hw
.aq
.fw_maj_ver
== 4) && (pf
->hw
.aq
.fw_min_ver
< 33)) ||
9948 (pf
->hw
.aq
.fw_maj_ver
< 4)) {
9950 err
= i40e_aq_set_link_restart_an(&pf
->hw
, true, NULL
);
9952 dev_info(&pf
->pdev
->dev
, "link restart failed, aq_err=%d\n",
9953 pf
->hw
.aq
.asq_last_status
);
9955 /* The main driver is (mostly) up and happy. We need to set this state
9956 * before setting up the misc vector or we get a race and the vector
9957 * ends up disabled forever.
9959 clear_bit(__I40E_DOWN
, &pf
->state
);
9961 /* In case of MSIX we are going to setup the misc vector right here
9962 * to handle admin queue events etc. In case of legacy and MSI
9963 * the misc functionality and queue processing is combined in
9964 * the same vector and that gets setup at open.
9966 if (pf
->flags
& I40E_FLAG_MSIX_ENABLED
) {
9967 err
= i40e_setup_misc_vector(pf
);
9969 dev_info(&pdev
->dev
,
9970 "setup of misc vector failed: %d\n", err
);
9975 #ifdef CONFIG_PCI_IOV
9976 /* prep for VF support */
9977 if ((pf
->flags
& I40E_FLAG_SRIOV_ENABLED
) &&
9978 (pf
->flags
& I40E_FLAG_MSIX_ENABLED
) &&
9979 !test_bit(__I40E_BAD_EEPROM
, &pf
->state
)) {
9982 /* disable link interrupts for VFs */
9983 val
= rd32(hw
, I40E_PFGEN_PORTMDIO_NUM
);
9984 val
&= ~I40E_PFGEN_PORTMDIO_NUM_VFLINK_STAT_ENA_MASK
;
9985 wr32(hw
, I40E_PFGEN_PORTMDIO_NUM
, val
);
9988 if (pci_num_vf(pdev
)) {
9989 dev_info(&pdev
->dev
,
9990 "Active VFs found, allocating resources.\n");
9991 err
= i40e_alloc_vfs(pf
, pci_num_vf(pdev
));
9993 dev_info(&pdev
->dev
,
9994 "Error %d allocating resources for existing VFs\n",
9998 #endif /* CONFIG_PCI_IOV */
10002 i40e_dbg_pf_init(pf
);
10004 /* tell the firmware that we're starting */
10005 i40e_send_version(pf
);
10007 /* since everything's happy, start the service_task timer */
10008 mod_timer(&pf
->service_timer
,
10009 round_jiffies(jiffies
+ pf
->service_timer_period
));
10012 /* create FCoE interface */
10013 i40e_fcoe_vsi_setup(pf
);
10016 /* Get the negotiated link width and speed from PCI config space */
10017 pcie_capability_read_word(pf
->pdev
, PCI_EXP_LNKSTA
, &link_status
);
10019 i40e_set_pci_config_data(hw
, link_status
);
10021 dev_info(&pdev
->dev
, "PCI-Express: %s %s\n",
10022 (hw
->bus
.speed
== i40e_bus_speed_8000
? "Speed 8.0GT/s" :
10023 hw
->bus
.speed
== i40e_bus_speed_5000
? "Speed 5.0GT/s" :
10024 hw
->bus
.speed
== i40e_bus_speed_2500
? "Speed 2.5GT/s" :
10026 (hw
->bus
.width
== i40e_bus_width_pcie_x8
? "Width x8" :
10027 hw
->bus
.width
== i40e_bus_width_pcie_x4
? "Width x4" :
10028 hw
->bus
.width
== i40e_bus_width_pcie_x2
? "Width x2" :
10029 hw
->bus
.width
== i40e_bus_width_pcie_x1
? "Width x1" :
10032 if (hw
->bus
.width
< i40e_bus_width_pcie_x8
||
10033 hw
->bus
.speed
< i40e_bus_speed_8000
) {
10034 dev_warn(&pdev
->dev
, "PCI-Express bandwidth available for this device may be insufficient for optimal performance.\n");
10035 dev_warn(&pdev
->dev
, "Please move the device to a different PCI-e link with more lanes and/or higher transfer rate.\n");
10038 /* get the requested speeds from the fw */
10039 err
= i40e_aq_get_phy_capabilities(hw
, false, false, &abilities
, NULL
);
10041 dev_info(&pf
->pdev
->dev
, "get phy abilities failed, aq_err %d, advertised speed settings may not be correct\n",
10043 pf
->hw
.phy
.link_info
.requested_speeds
= abilities
.link_speed
;
10045 /* print a string summarizing features */
10046 i40e_print_features(pf
);
10050 /* Unwind what we've done if something failed in the setup */
10052 set_bit(__I40E_DOWN
, &pf
->state
);
10053 i40e_clear_interrupt_scheme(pf
);
10056 i40e_reset_interrupt_capability(pf
);
10057 del_timer_sync(&pf
->service_timer
);
10059 err_configure_lan_hmc
:
10060 (void)i40e_shutdown_lan_hmc(hw
);
10062 kfree(pf
->qp_pile
);
10065 (void)i40e_shutdown_adminq(hw
);
10067 iounmap(hw
->hw_addr
);
10071 pci_disable_pcie_error_reporting(pdev
);
10072 pci_release_selected_regions(pdev
,
10073 pci_select_bars(pdev
, IORESOURCE_MEM
));
10076 pci_disable_device(pdev
);
10081 * i40e_remove - Device removal routine
10082 * @pdev: PCI device information struct
10084 * i40e_remove is called by the PCI subsystem to alert the driver
10085 * that is should release a PCI device. This could be caused by a
10086 * Hot-Plug event, or because the driver is going to be removed from
10089 static void i40e_remove(struct pci_dev
*pdev
)
10091 struct i40e_pf
*pf
= pci_get_drvdata(pdev
);
10092 i40e_status ret_code
;
10095 i40e_dbg_pf_exit(pf
);
10099 /* no more scheduling of any task */
10100 set_bit(__I40E_DOWN
, &pf
->state
);
10101 del_timer_sync(&pf
->service_timer
);
10102 cancel_work_sync(&pf
->service_task
);
10103 i40e_fdir_teardown(pf
);
10105 if (pf
->flags
& I40E_FLAG_SRIOV_ENABLED
) {
10107 pf
->flags
&= ~I40E_FLAG_SRIOV_ENABLED
;
10110 i40e_fdir_teardown(pf
);
10112 /* If there is a switch structure or any orphans, remove them.
10113 * This will leave only the PF's VSI remaining.
10115 for (i
= 0; i
< I40E_MAX_VEB
; i
++) {
10119 if (pf
->veb
[i
]->uplink_seid
== pf
->mac_seid
||
10120 pf
->veb
[i
]->uplink_seid
== 0)
10121 i40e_switch_branch_release(pf
->veb
[i
]);
10124 /* Now we can shutdown the PF's VSI, just before we kill
10127 if (pf
->vsi
[pf
->lan_vsi
])
10128 i40e_vsi_release(pf
->vsi
[pf
->lan_vsi
]);
10130 /* shutdown and destroy the HMC */
10131 if (pf
->hw
.hmc
.hmc_obj
) {
10132 ret_code
= i40e_shutdown_lan_hmc(&pf
->hw
);
10134 dev_warn(&pdev
->dev
,
10135 "Failed to destroy the HMC resources: %d\n",
10139 /* shutdown the adminq */
10140 ret_code
= i40e_shutdown_adminq(&pf
->hw
);
10142 dev_warn(&pdev
->dev
,
10143 "Failed to destroy the Admin Queue resources: %d\n",
10146 /* Clear all dynamic memory lists of rings, q_vectors, and VSIs */
10147 i40e_clear_interrupt_scheme(pf
);
10148 for (i
= 0; i
< pf
->num_alloc_vsi
; i
++) {
10150 i40e_vsi_clear_rings(pf
->vsi
[i
]);
10151 i40e_vsi_clear(pf
->vsi
[i
]);
10156 for (i
= 0; i
< I40E_MAX_VEB
; i
++) {
10161 kfree(pf
->qp_pile
);
10164 iounmap(pf
->hw
.hw_addr
);
10166 pci_release_selected_regions(pdev
,
10167 pci_select_bars(pdev
, IORESOURCE_MEM
));
10169 pci_disable_pcie_error_reporting(pdev
);
10170 pci_disable_device(pdev
);
10174 * i40e_pci_error_detected - warning that something funky happened in PCI land
10175 * @pdev: PCI device information struct
10177 * Called to warn that something happened and the error handling steps
10178 * are in progress. Allows the driver to quiesce things, be ready for
10181 static pci_ers_result_t
i40e_pci_error_detected(struct pci_dev
*pdev
,
10182 enum pci_channel_state error
)
10184 struct i40e_pf
*pf
= pci_get_drvdata(pdev
);
10186 dev_info(&pdev
->dev
, "%s: error %d\n", __func__
, error
);
10188 /* shutdown all operations */
10189 if (!test_bit(__I40E_SUSPENDED
, &pf
->state
)) {
10191 i40e_prep_for_reset(pf
);
10195 /* Request a slot reset */
10196 return PCI_ERS_RESULT_NEED_RESET
;
10200 * i40e_pci_error_slot_reset - a PCI slot reset just happened
10201 * @pdev: PCI device information struct
10203 * Called to find if the driver can work with the device now that
10204 * the pci slot has been reset. If a basic connection seems good
10205 * (registers are readable and have sane content) then return a
10206 * happy little PCI_ERS_RESULT_xxx.
10208 static pci_ers_result_t
i40e_pci_error_slot_reset(struct pci_dev
*pdev
)
10210 struct i40e_pf
*pf
= pci_get_drvdata(pdev
);
10211 pci_ers_result_t result
;
10215 dev_info(&pdev
->dev
, "%s\n", __func__
);
10216 if (pci_enable_device_mem(pdev
)) {
10217 dev_info(&pdev
->dev
,
10218 "Cannot re-enable PCI device after reset.\n");
10219 result
= PCI_ERS_RESULT_DISCONNECT
;
10221 pci_set_master(pdev
);
10222 pci_restore_state(pdev
);
10223 pci_save_state(pdev
);
10224 pci_wake_from_d3(pdev
, false);
10226 reg
= rd32(&pf
->hw
, I40E_GLGEN_RTRIG
);
10228 result
= PCI_ERS_RESULT_RECOVERED
;
10230 result
= PCI_ERS_RESULT_DISCONNECT
;
10233 err
= pci_cleanup_aer_uncorrect_error_status(pdev
);
10235 dev_info(&pdev
->dev
,
10236 "pci_cleanup_aer_uncorrect_error_status failed 0x%0x\n",
10238 /* non-fatal, continue */
10245 * i40e_pci_error_resume - restart operations after PCI error recovery
10246 * @pdev: PCI device information struct
10248 * Called to allow the driver to bring things back up after PCI error
10249 * and/or reset recovery has finished.
10251 static void i40e_pci_error_resume(struct pci_dev
*pdev
)
10253 struct i40e_pf
*pf
= pci_get_drvdata(pdev
);
10255 dev_info(&pdev
->dev
, "%s\n", __func__
);
10256 if (test_bit(__I40E_SUSPENDED
, &pf
->state
))
10260 i40e_handle_reset_warning(pf
);
10265 * i40e_shutdown - PCI callback for shutting down
10266 * @pdev: PCI device information struct
10268 static void i40e_shutdown(struct pci_dev
*pdev
)
10270 struct i40e_pf
*pf
= pci_get_drvdata(pdev
);
10271 struct i40e_hw
*hw
= &pf
->hw
;
10273 set_bit(__I40E_SUSPENDED
, &pf
->state
);
10274 set_bit(__I40E_DOWN
, &pf
->state
);
10276 i40e_prep_for_reset(pf
);
10279 wr32(hw
, I40E_PFPM_APM
, (pf
->wol_en
? I40E_PFPM_APM_APME_MASK
: 0));
10280 wr32(hw
, I40E_PFPM_WUFC
, (pf
->wol_en
? I40E_PFPM_WUFC_MAG_MASK
: 0));
10282 i40e_clear_interrupt_scheme(pf
);
10284 if (system_state
== SYSTEM_POWER_OFF
) {
10285 pci_wake_from_d3(pdev
, pf
->wol_en
);
10286 pci_set_power_state(pdev
, PCI_D3hot
);
10292 * i40e_suspend - PCI callback for moving to D3
10293 * @pdev: PCI device information struct
10295 static int i40e_suspend(struct pci_dev
*pdev
, pm_message_t state
)
10297 struct i40e_pf
*pf
= pci_get_drvdata(pdev
);
10298 struct i40e_hw
*hw
= &pf
->hw
;
10300 set_bit(__I40E_SUSPENDED
, &pf
->state
);
10301 set_bit(__I40E_DOWN
, &pf
->state
);
10302 del_timer_sync(&pf
->service_timer
);
10303 cancel_work_sync(&pf
->service_task
);
10304 i40e_fdir_teardown(pf
);
10307 i40e_prep_for_reset(pf
);
10310 wr32(hw
, I40E_PFPM_APM
, (pf
->wol_en
? I40E_PFPM_APM_APME_MASK
: 0));
10311 wr32(hw
, I40E_PFPM_WUFC
, (pf
->wol_en
? I40E_PFPM_WUFC_MAG_MASK
: 0));
10313 pci_wake_from_d3(pdev
, pf
->wol_en
);
10314 pci_set_power_state(pdev
, PCI_D3hot
);
10320 * i40e_resume - PCI callback for waking up from D3
10321 * @pdev: PCI device information struct
10323 static int i40e_resume(struct pci_dev
*pdev
)
10325 struct i40e_pf
*pf
= pci_get_drvdata(pdev
);
10328 pci_set_power_state(pdev
, PCI_D0
);
10329 pci_restore_state(pdev
);
10330 /* pci_restore_state() clears dev->state_saves, so
10331 * call pci_save_state() again to restore it.
10333 pci_save_state(pdev
);
10335 err
= pci_enable_device_mem(pdev
);
10337 dev_err(&pdev
->dev
,
10338 "%s: Cannot enable PCI device from suspend\n",
10342 pci_set_master(pdev
);
10344 /* no wakeup events while running */
10345 pci_wake_from_d3(pdev
, false);
10347 /* handling the reset will rebuild the device state */
10348 if (test_and_clear_bit(__I40E_SUSPENDED
, &pf
->state
)) {
10349 clear_bit(__I40E_DOWN
, &pf
->state
);
10351 i40e_reset_and_rebuild(pf
, false);
10359 static const struct pci_error_handlers i40e_err_handler
= {
10360 .error_detected
= i40e_pci_error_detected
,
10361 .slot_reset
= i40e_pci_error_slot_reset
,
10362 .resume
= i40e_pci_error_resume
,
10365 static struct pci_driver i40e_driver
= {
10366 .name
= i40e_driver_name
,
10367 .id_table
= i40e_pci_tbl
,
10368 .probe
= i40e_probe
,
10369 .remove
= i40e_remove
,
10371 .suspend
= i40e_suspend
,
10372 .resume
= i40e_resume
,
10374 .shutdown
= i40e_shutdown
,
10375 .err_handler
= &i40e_err_handler
,
10376 .sriov_configure
= i40e_pci_sriov_configure
,
10380 * i40e_init_module - Driver registration routine
10382 * i40e_init_module is the first routine called when the driver is
10383 * loaded. All it does is register with the PCI subsystem.
10385 static int __init
i40e_init_module(void)
10387 pr_info("%s: %s - version %s\n", i40e_driver_name
,
10388 i40e_driver_string
, i40e_driver_version_str
);
10389 pr_info("%s: %s\n", i40e_driver_name
, i40e_copyright
);
10392 return pci_register_driver(&i40e_driver
);
10394 module_init(i40e_init_module
);
10397 * i40e_exit_module - Driver exit cleanup routine
10399 * i40e_exit_module is called just before the driver is removed
10402 static void __exit
i40e_exit_module(void)
10404 pci_unregister_driver(&i40e_driver
);
10407 module_exit(i40e_exit_module
);