1 /*******************************************************************************
3 * Intel Ethernet Controller XL710 Family Linux Driver
4 * Copyright(c) 2013 - 2014 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 0
42 #define DRV_VERSION_BUILD 11
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 /* required last entry */
80 MODULE_DEVICE_TABLE(pci
, i40e_pci_tbl
);
82 #define I40E_MAX_VF_COUNT 128
83 static int debug
= -1;
84 module_param(debug
, int, 0);
85 MODULE_PARM_DESC(debug
, "Debug level (0=none,...,16=all)");
87 MODULE_AUTHOR("Intel Corporation, <e1000-devel@lists.sourceforge.net>");
88 MODULE_DESCRIPTION("Intel(R) Ethernet Connection XL710 Network Driver");
89 MODULE_LICENSE("GPL");
90 MODULE_VERSION(DRV_VERSION
);
93 * i40e_allocate_dma_mem_d - OS specific memory alloc for shared code
94 * @hw: pointer to the HW structure
95 * @mem: ptr to mem struct to fill out
96 * @size: size of memory requested
97 * @alignment: what to align the allocation to
99 int i40e_allocate_dma_mem_d(struct i40e_hw
*hw
, struct i40e_dma_mem
*mem
,
100 u64 size
, u32 alignment
)
102 struct i40e_pf
*pf
= (struct i40e_pf
*)hw
->back
;
104 mem
->size
= ALIGN(size
, alignment
);
105 mem
->va
= dma_zalloc_coherent(&pf
->pdev
->dev
, mem
->size
,
106 &mem
->pa
, GFP_KERNEL
);
114 * i40e_free_dma_mem_d - OS specific memory free for shared code
115 * @hw: pointer to the HW structure
116 * @mem: ptr to mem struct to free
118 int i40e_free_dma_mem_d(struct i40e_hw
*hw
, struct i40e_dma_mem
*mem
)
120 struct i40e_pf
*pf
= (struct i40e_pf
*)hw
->back
;
122 dma_free_coherent(&pf
->pdev
->dev
, mem
->size
, mem
->va
, mem
->pa
);
131 * i40e_allocate_virt_mem_d - OS specific memory alloc for shared code
132 * @hw: pointer to the HW structure
133 * @mem: ptr to mem struct to fill out
134 * @size: size of memory requested
136 int i40e_allocate_virt_mem_d(struct i40e_hw
*hw
, struct i40e_virt_mem
*mem
,
140 mem
->va
= kzalloc(size
, GFP_KERNEL
);
149 * i40e_free_virt_mem_d - OS specific memory free for shared code
150 * @hw: pointer to the HW structure
151 * @mem: ptr to mem struct to free
153 int i40e_free_virt_mem_d(struct i40e_hw
*hw
, struct i40e_virt_mem
*mem
)
155 /* it's ok to kfree a NULL pointer */
164 * i40e_get_lump - find a lump of free generic resource
165 * @pf: board private structure
166 * @pile: the pile of resource to search
167 * @needed: the number of items needed
168 * @id: an owner id to stick on the items assigned
170 * Returns the base item index of the lump, or negative for error
172 * The search_hint trick and lack of advanced fit-finding only work
173 * because we're highly likely to have all the same size lump requests.
174 * Linear search time and any fragmentation should be minimal.
176 static int i40e_get_lump(struct i40e_pf
*pf
, struct i40e_lump_tracking
*pile
,
182 if (!pile
|| needed
== 0 || id
>= I40E_PILE_VALID_BIT
) {
183 dev_info(&pf
->pdev
->dev
,
184 "param err: pile=%p needed=%d id=0x%04x\n",
189 /* start the linear search with an imperfect hint */
190 i
= pile
->search_hint
;
191 while (i
< pile
->num_entries
) {
192 /* skip already allocated entries */
193 if (pile
->list
[i
] & I40E_PILE_VALID_BIT
) {
198 /* do we have enough in this lump? */
199 for (j
= 0; (j
< needed
) && ((i
+j
) < pile
->num_entries
); j
++) {
200 if (pile
->list
[i
+j
] & I40E_PILE_VALID_BIT
)
205 /* there was enough, so assign it to the requestor */
206 for (j
= 0; j
< needed
; j
++)
207 pile
->list
[i
+j
] = id
| I40E_PILE_VALID_BIT
;
209 pile
->search_hint
= i
+ j
;
212 /* not enough, so skip over it and continue looking */
221 * i40e_put_lump - return a lump of generic resource
222 * @pile: the pile of resource to search
223 * @index: the base item index
224 * @id: the owner id of the items assigned
226 * Returns the count of items in the lump
228 static int i40e_put_lump(struct i40e_lump_tracking
*pile
, u16 index
, u16 id
)
230 int valid_id
= (id
| I40E_PILE_VALID_BIT
);
234 if (!pile
|| index
>= pile
->num_entries
)
238 i
< pile
->num_entries
&& pile
->list
[i
] == valid_id
;
244 if (count
&& index
< pile
->search_hint
)
245 pile
->search_hint
= index
;
251 * i40e_service_event_schedule - Schedule the service task to wake up
252 * @pf: board private structure
254 * If not already scheduled, this puts the task into the work queue
256 static void i40e_service_event_schedule(struct i40e_pf
*pf
)
258 if (!test_bit(__I40E_DOWN
, &pf
->state
) &&
259 !test_bit(__I40E_RESET_RECOVERY_PENDING
, &pf
->state
) &&
260 !test_and_set_bit(__I40E_SERVICE_SCHED
, &pf
->state
))
261 schedule_work(&pf
->service_task
);
265 * i40e_tx_timeout - Respond to a Tx Hang
266 * @netdev: network interface device structure
268 * If any port has noticed a Tx timeout, it is likely that the whole
269 * device is munged, not just the one netdev port, so go for the full
273 void i40e_tx_timeout(struct net_device
*netdev
)
275 static void i40e_tx_timeout(struct net_device
*netdev
)
278 struct i40e_netdev_priv
*np
= netdev_priv(netdev
);
279 struct i40e_vsi
*vsi
= np
->vsi
;
280 struct i40e_pf
*pf
= vsi
->back
;
282 pf
->tx_timeout_count
++;
284 if (time_after(jiffies
, (pf
->tx_timeout_last_recovery
+ HZ
*20)))
285 pf
->tx_timeout_recovery_level
= 1;
286 pf
->tx_timeout_last_recovery
= jiffies
;
287 netdev_info(netdev
, "tx_timeout recovery level %d\n",
288 pf
->tx_timeout_recovery_level
);
290 switch (pf
->tx_timeout_recovery_level
) {
292 /* disable and re-enable queues for the VSI */
293 if (in_interrupt()) {
294 set_bit(__I40E_REINIT_REQUESTED
, &pf
->state
);
295 set_bit(__I40E_REINIT_REQUESTED
, &vsi
->state
);
297 i40e_vsi_reinit_locked(vsi
);
301 set_bit(__I40E_PF_RESET_REQUESTED
, &pf
->state
);
304 set_bit(__I40E_CORE_RESET_REQUESTED
, &pf
->state
);
307 set_bit(__I40E_GLOBAL_RESET_REQUESTED
, &pf
->state
);
310 netdev_err(netdev
, "tx_timeout recovery unsuccessful\n");
311 set_bit(__I40E_DOWN_REQUESTED
, &pf
->state
);
312 set_bit(__I40E_DOWN_REQUESTED
, &vsi
->state
);
315 i40e_service_event_schedule(pf
);
316 pf
->tx_timeout_recovery_level
++;
320 * i40e_release_rx_desc - Store the new tail and head values
321 * @rx_ring: ring to bump
322 * @val: new head index
324 static inline void i40e_release_rx_desc(struct i40e_ring
*rx_ring
, u32 val
)
326 rx_ring
->next_to_use
= val
;
328 /* Force memory writes to complete before letting h/w
329 * know there are new descriptors to fetch. (Only
330 * applicable for weak-ordered memory model archs,
334 writel(val
, rx_ring
->tail
);
338 * i40e_get_vsi_stats_struct - Get System Network Statistics
339 * @vsi: the VSI we care about
341 * Returns the address of the device statistics structure.
342 * The statistics are actually updated from the service task.
344 struct rtnl_link_stats64
*i40e_get_vsi_stats_struct(struct i40e_vsi
*vsi
)
346 return &vsi
->net_stats
;
350 * i40e_get_netdev_stats_struct - Get statistics for netdev interface
351 * @netdev: network interface device structure
353 * Returns the address of the device statistics structure.
354 * The statistics are actually updated from the service task.
357 struct rtnl_link_stats64
*i40e_get_netdev_stats_struct(
358 struct net_device
*netdev
,
359 struct rtnl_link_stats64
*stats
)
361 static struct rtnl_link_stats64
*i40e_get_netdev_stats_struct(
362 struct net_device
*netdev
,
363 struct rtnl_link_stats64
*stats
)
366 struct i40e_netdev_priv
*np
= netdev_priv(netdev
);
367 struct i40e_ring
*tx_ring
, *rx_ring
;
368 struct i40e_vsi
*vsi
= np
->vsi
;
369 struct rtnl_link_stats64
*vsi_stats
= i40e_get_vsi_stats_struct(vsi
);
372 if (test_bit(__I40E_DOWN
, &vsi
->state
))
379 for (i
= 0; i
< vsi
->num_queue_pairs
; i
++) {
383 tx_ring
= ACCESS_ONCE(vsi
->tx_rings
[i
]);
388 start
= u64_stats_fetch_begin_irq(&tx_ring
->syncp
);
389 packets
= tx_ring
->stats
.packets
;
390 bytes
= tx_ring
->stats
.bytes
;
391 } while (u64_stats_fetch_retry_irq(&tx_ring
->syncp
, start
));
393 stats
->tx_packets
+= packets
;
394 stats
->tx_bytes
+= bytes
;
395 rx_ring
= &tx_ring
[1];
398 start
= u64_stats_fetch_begin_irq(&rx_ring
->syncp
);
399 packets
= rx_ring
->stats
.packets
;
400 bytes
= rx_ring
->stats
.bytes
;
401 } while (u64_stats_fetch_retry_irq(&rx_ring
->syncp
, start
));
403 stats
->rx_packets
+= packets
;
404 stats
->rx_bytes
+= bytes
;
408 /* following stats updated by i40e_watchdog_subtask() */
409 stats
->multicast
= vsi_stats
->multicast
;
410 stats
->tx_errors
= vsi_stats
->tx_errors
;
411 stats
->tx_dropped
= vsi_stats
->tx_dropped
;
412 stats
->rx_errors
= vsi_stats
->rx_errors
;
413 stats
->rx_crc_errors
= vsi_stats
->rx_crc_errors
;
414 stats
->rx_length_errors
= vsi_stats
->rx_length_errors
;
420 * i40e_vsi_reset_stats - Resets all stats of the given vsi
421 * @vsi: the VSI to have its stats reset
423 void i40e_vsi_reset_stats(struct i40e_vsi
*vsi
)
425 struct rtnl_link_stats64
*ns
;
431 ns
= i40e_get_vsi_stats_struct(vsi
);
432 memset(ns
, 0, sizeof(*ns
));
433 memset(&vsi
->net_stats_offsets
, 0, sizeof(vsi
->net_stats_offsets
));
434 memset(&vsi
->eth_stats
, 0, sizeof(vsi
->eth_stats
));
435 memset(&vsi
->eth_stats_offsets
, 0, sizeof(vsi
->eth_stats_offsets
));
436 if (vsi
->rx_rings
&& vsi
->rx_rings
[0]) {
437 for (i
= 0; i
< vsi
->num_queue_pairs
; i
++) {
438 memset(&vsi
->rx_rings
[i
]->stats
, 0 ,
439 sizeof(vsi
->rx_rings
[i
]->stats
));
440 memset(&vsi
->rx_rings
[i
]->rx_stats
, 0 ,
441 sizeof(vsi
->rx_rings
[i
]->rx_stats
));
442 memset(&vsi
->tx_rings
[i
]->stats
, 0 ,
443 sizeof(vsi
->tx_rings
[i
]->stats
));
444 memset(&vsi
->tx_rings
[i
]->tx_stats
, 0,
445 sizeof(vsi
->tx_rings
[i
]->tx_stats
));
448 vsi
->stat_offsets_loaded
= false;
452 * i40e_pf_reset_stats - Reset all of the stats for the given pf
453 * @pf: the PF to be reset
455 void i40e_pf_reset_stats(struct i40e_pf
*pf
)
459 memset(&pf
->stats
, 0, sizeof(pf
->stats
));
460 memset(&pf
->stats_offsets
, 0, sizeof(pf
->stats_offsets
));
461 pf
->stat_offsets_loaded
= false;
463 for (i
= 0; i
< I40E_MAX_VEB
; i
++) {
465 memset(&pf
->veb
[i
]->stats
, 0,
466 sizeof(pf
->veb
[i
]->stats
));
467 memset(&pf
->veb
[i
]->stats_offsets
, 0,
468 sizeof(pf
->veb
[i
]->stats_offsets
));
469 pf
->veb
[i
]->stat_offsets_loaded
= false;
475 * i40e_stat_update48 - read and update a 48 bit stat from the chip
476 * @hw: ptr to the hardware info
477 * @hireg: the high 32 bit reg to read
478 * @loreg: the low 32 bit reg to read
479 * @offset_loaded: has the initial offset been loaded yet
480 * @offset: ptr to current offset value
481 * @stat: ptr to the stat
483 * Since the device stats are not reset at PFReset, they likely will not
484 * be zeroed when the driver starts. We'll save the first values read
485 * and use them as offsets to be subtracted from the raw values in order
486 * to report stats that count from zero. In the process, we also manage
487 * the potential roll-over.
489 static void i40e_stat_update48(struct i40e_hw
*hw
, u32 hireg
, u32 loreg
,
490 bool offset_loaded
, u64
*offset
, u64
*stat
)
494 if (hw
->device_id
== I40E_DEV_ID_QEMU
) {
495 new_data
= rd32(hw
, loreg
);
496 new_data
|= ((u64
)(rd32(hw
, hireg
) & 0xFFFF)) << 32;
498 new_data
= rd64(hw
, loreg
);
502 if (likely(new_data
>= *offset
))
503 *stat
= new_data
- *offset
;
505 *stat
= (new_data
+ ((u64
)1 << 48)) - *offset
;
506 *stat
&= 0xFFFFFFFFFFFFULL
;
510 * i40e_stat_update32 - read and update a 32 bit stat from the chip
511 * @hw: ptr to the hardware info
512 * @reg: the hw reg to read
513 * @offset_loaded: has the initial offset been loaded yet
514 * @offset: ptr to current offset value
515 * @stat: ptr to the stat
517 static void i40e_stat_update32(struct i40e_hw
*hw
, u32 reg
,
518 bool offset_loaded
, u64
*offset
, u64
*stat
)
522 new_data
= rd32(hw
, reg
);
525 if (likely(new_data
>= *offset
))
526 *stat
= (u32
)(new_data
- *offset
);
528 *stat
= (u32
)((new_data
+ ((u64
)1 << 32)) - *offset
);
532 * i40e_update_eth_stats - Update VSI-specific ethernet statistics counters.
533 * @vsi: the VSI to be updated
535 void i40e_update_eth_stats(struct i40e_vsi
*vsi
)
537 int stat_idx
= le16_to_cpu(vsi
->info
.stat_counter_idx
);
538 struct i40e_pf
*pf
= vsi
->back
;
539 struct i40e_hw
*hw
= &pf
->hw
;
540 struct i40e_eth_stats
*oes
;
541 struct i40e_eth_stats
*es
; /* device's eth stats */
543 es
= &vsi
->eth_stats
;
544 oes
= &vsi
->eth_stats_offsets
;
546 /* Gather up the stats that the hw collects */
547 i40e_stat_update32(hw
, I40E_GLV_TEPC(stat_idx
),
548 vsi
->stat_offsets_loaded
,
549 &oes
->tx_errors
, &es
->tx_errors
);
550 i40e_stat_update32(hw
, I40E_GLV_RDPC(stat_idx
),
551 vsi
->stat_offsets_loaded
,
552 &oes
->rx_discards
, &es
->rx_discards
);
553 i40e_stat_update32(hw
, I40E_GLV_RUPP(stat_idx
),
554 vsi
->stat_offsets_loaded
,
555 &oes
->rx_unknown_protocol
, &es
->rx_unknown_protocol
);
556 i40e_stat_update32(hw
, I40E_GLV_TEPC(stat_idx
),
557 vsi
->stat_offsets_loaded
,
558 &oes
->tx_errors
, &es
->tx_errors
);
560 i40e_stat_update48(hw
, I40E_GLV_GORCH(stat_idx
),
561 I40E_GLV_GORCL(stat_idx
),
562 vsi
->stat_offsets_loaded
,
563 &oes
->rx_bytes
, &es
->rx_bytes
);
564 i40e_stat_update48(hw
, I40E_GLV_UPRCH(stat_idx
),
565 I40E_GLV_UPRCL(stat_idx
),
566 vsi
->stat_offsets_loaded
,
567 &oes
->rx_unicast
, &es
->rx_unicast
);
568 i40e_stat_update48(hw
, I40E_GLV_MPRCH(stat_idx
),
569 I40E_GLV_MPRCL(stat_idx
),
570 vsi
->stat_offsets_loaded
,
571 &oes
->rx_multicast
, &es
->rx_multicast
);
572 i40e_stat_update48(hw
, I40E_GLV_BPRCH(stat_idx
),
573 I40E_GLV_BPRCL(stat_idx
),
574 vsi
->stat_offsets_loaded
,
575 &oes
->rx_broadcast
, &es
->rx_broadcast
);
577 i40e_stat_update48(hw
, I40E_GLV_GOTCH(stat_idx
),
578 I40E_GLV_GOTCL(stat_idx
),
579 vsi
->stat_offsets_loaded
,
580 &oes
->tx_bytes
, &es
->tx_bytes
);
581 i40e_stat_update48(hw
, I40E_GLV_UPTCH(stat_idx
),
582 I40E_GLV_UPTCL(stat_idx
),
583 vsi
->stat_offsets_loaded
,
584 &oes
->tx_unicast
, &es
->tx_unicast
);
585 i40e_stat_update48(hw
, I40E_GLV_MPTCH(stat_idx
),
586 I40E_GLV_MPTCL(stat_idx
),
587 vsi
->stat_offsets_loaded
,
588 &oes
->tx_multicast
, &es
->tx_multicast
);
589 i40e_stat_update48(hw
, I40E_GLV_BPTCH(stat_idx
),
590 I40E_GLV_BPTCL(stat_idx
),
591 vsi
->stat_offsets_loaded
,
592 &oes
->tx_broadcast
, &es
->tx_broadcast
);
593 vsi
->stat_offsets_loaded
= true;
597 * i40e_update_veb_stats - Update Switch component statistics
598 * @veb: the VEB being updated
600 static void i40e_update_veb_stats(struct i40e_veb
*veb
)
602 struct i40e_pf
*pf
= veb
->pf
;
603 struct i40e_hw
*hw
= &pf
->hw
;
604 struct i40e_eth_stats
*oes
;
605 struct i40e_eth_stats
*es
; /* device's eth stats */
608 idx
= veb
->stats_idx
;
610 oes
= &veb
->stats_offsets
;
612 /* Gather up the stats that the hw collects */
613 i40e_stat_update32(hw
, I40E_GLSW_TDPC(idx
),
614 veb
->stat_offsets_loaded
,
615 &oes
->tx_discards
, &es
->tx_discards
);
616 if (hw
->revision_id
> 0)
617 i40e_stat_update32(hw
, I40E_GLSW_RUPP(idx
),
618 veb
->stat_offsets_loaded
,
619 &oes
->rx_unknown_protocol
,
620 &es
->rx_unknown_protocol
);
621 i40e_stat_update48(hw
, I40E_GLSW_GORCH(idx
), I40E_GLSW_GORCL(idx
),
622 veb
->stat_offsets_loaded
,
623 &oes
->rx_bytes
, &es
->rx_bytes
);
624 i40e_stat_update48(hw
, I40E_GLSW_UPRCH(idx
), I40E_GLSW_UPRCL(idx
),
625 veb
->stat_offsets_loaded
,
626 &oes
->rx_unicast
, &es
->rx_unicast
);
627 i40e_stat_update48(hw
, I40E_GLSW_MPRCH(idx
), I40E_GLSW_MPRCL(idx
),
628 veb
->stat_offsets_loaded
,
629 &oes
->rx_multicast
, &es
->rx_multicast
);
630 i40e_stat_update48(hw
, I40E_GLSW_BPRCH(idx
), I40E_GLSW_BPRCL(idx
),
631 veb
->stat_offsets_loaded
,
632 &oes
->rx_broadcast
, &es
->rx_broadcast
);
634 i40e_stat_update48(hw
, I40E_GLSW_GOTCH(idx
), I40E_GLSW_GOTCL(idx
),
635 veb
->stat_offsets_loaded
,
636 &oes
->tx_bytes
, &es
->tx_bytes
);
637 i40e_stat_update48(hw
, I40E_GLSW_UPTCH(idx
), I40E_GLSW_UPTCL(idx
),
638 veb
->stat_offsets_loaded
,
639 &oes
->tx_unicast
, &es
->tx_unicast
);
640 i40e_stat_update48(hw
, I40E_GLSW_MPTCH(idx
), I40E_GLSW_MPTCL(idx
),
641 veb
->stat_offsets_loaded
,
642 &oes
->tx_multicast
, &es
->tx_multicast
);
643 i40e_stat_update48(hw
, I40E_GLSW_BPTCH(idx
), I40E_GLSW_BPTCL(idx
),
644 veb
->stat_offsets_loaded
,
645 &oes
->tx_broadcast
, &es
->tx_broadcast
);
646 veb
->stat_offsets_loaded
= true;
651 * i40e_update_fcoe_stats - Update FCoE-specific ethernet statistics counters.
652 * @vsi: the VSI that is capable of doing FCoE
654 static void i40e_update_fcoe_stats(struct i40e_vsi
*vsi
)
656 struct i40e_pf
*pf
= vsi
->back
;
657 struct i40e_hw
*hw
= &pf
->hw
;
658 struct i40e_fcoe_stats
*ofs
;
659 struct i40e_fcoe_stats
*fs
; /* device's eth stats */
662 if (vsi
->type
!= I40E_VSI_FCOE
)
665 idx
= (pf
->pf_seid
- I40E_BASE_PF_SEID
) + I40E_FCOE_PF_STAT_OFFSET
;
666 fs
= &vsi
->fcoe_stats
;
667 ofs
= &vsi
->fcoe_stats_offsets
;
669 i40e_stat_update32(hw
, I40E_GL_FCOEPRC(idx
),
670 vsi
->fcoe_stat_offsets_loaded
,
671 &ofs
->rx_fcoe_packets
, &fs
->rx_fcoe_packets
);
672 i40e_stat_update48(hw
, I40E_GL_FCOEDWRCH(idx
), I40E_GL_FCOEDWRCL(idx
),
673 vsi
->fcoe_stat_offsets_loaded
,
674 &ofs
->rx_fcoe_dwords
, &fs
->rx_fcoe_dwords
);
675 i40e_stat_update32(hw
, I40E_GL_FCOERPDC(idx
),
676 vsi
->fcoe_stat_offsets_loaded
,
677 &ofs
->rx_fcoe_dropped
, &fs
->rx_fcoe_dropped
);
678 i40e_stat_update32(hw
, I40E_GL_FCOEPTC(idx
),
679 vsi
->fcoe_stat_offsets_loaded
,
680 &ofs
->tx_fcoe_packets
, &fs
->tx_fcoe_packets
);
681 i40e_stat_update48(hw
, I40E_GL_FCOEDWTCH(idx
), I40E_GL_FCOEDWTCL(idx
),
682 vsi
->fcoe_stat_offsets_loaded
,
683 &ofs
->tx_fcoe_dwords
, &fs
->tx_fcoe_dwords
);
684 i40e_stat_update32(hw
, I40E_GL_FCOECRC(idx
),
685 vsi
->fcoe_stat_offsets_loaded
,
686 &ofs
->fcoe_bad_fccrc
, &fs
->fcoe_bad_fccrc
);
687 i40e_stat_update32(hw
, I40E_GL_FCOELAST(idx
),
688 vsi
->fcoe_stat_offsets_loaded
,
689 &ofs
->fcoe_last_error
, &fs
->fcoe_last_error
);
690 i40e_stat_update32(hw
, I40E_GL_FCOEDDPC(idx
),
691 vsi
->fcoe_stat_offsets_loaded
,
692 &ofs
->fcoe_ddp_count
, &fs
->fcoe_ddp_count
);
694 vsi
->fcoe_stat_offsets_loaded
= true;
699 * i40e_update_link_xoff_rx - Update XOFF received in link flow control mode
700 * @pf: the corresponding PF
702 * Update the Rx XOFF counter (PAUSE frames) in link flow control mode
704 static void i40e_update_link_xoff_rx(struct i40e_pf
*pf
)
706 struct i40e_hw_port_stats
*osd
= &pf
->stats_offsets
;
707 struct i40e_hw_port_stats
*nsd
= &pf
->stats
;
708 struct i40e_hw
*hw
= &pf
->hw
;
712 if ((hw
->fc
.current_mode
!= I40E_FC_FULL
) &&
713 (hw
->fc
.current_mode
!= I40E_FC_RX_PAUSE
))
716 xoff
= nsd
->link_xoff_rx
;
717 i40e_stat_update32(hw
, I40E_GLPRT_LXOFFRXC(hw
->port
),
718 pf
->stat_offsets_loaded
,
719 &osd
->link_xoff_rx
, &nsd
->link_xoff_rx
);
721 /* No new LFC xoff rx */
722 if (!(nsd
->link_xoff_rx
- xoff
))
725 /* Clear the __I40E_HANG_CHECK_ARMED bit for all Tx rings */
726 for (v
= 0; v
< pf
->num_alloc_vsi
; v
++) {
727 struct i40e_vsi
*vsi
= pf
->vsi
[v
];
729 if (!vsi
|| !vsi
->tx_rings
[0])
732 for (i
= 0; i
< vsi
->num_queue_pairs
; i
++) {
733 struct i40e_ring
*ring
= vsi
->tx_rings
[i
];
734 clear_bit(__I40E_HANG_CHECK_ARMED
, &ring
->state
);
740 * i40e_update_prio_xoff_rx - Update XOFF received in PFC mode
741 * @pf: the corresponding PF
743 * Update the Rx XOFF counter (PAUSE frames) in PFC mode
745 static void i40e_update_prio_xoff_rx(struct i40e_pf
*pf
)
747 struct i40e_hw_port_stats
*osd
= &pf
->stats_offsets
;
748 struct i40e_hw_port_stats
*nsd
= &pf
->stats
;
749 bool xoff
[I40E_MAX_TRAFFIC_CLASS
] = {false};
750 struct i40e_dcbx_config
*dcb_cfg
;
751 struct i40e_hw
*hw
= &pf
->hw
;
755 dcb_cfg
= &hw
->local_dcbx_config
;
757 /* See if DCB enabled with PFC TC */
758 if (!(pf
->flags
& I40E_FLAG_DCB_ENABLED
) ||
759 !(dcb_cfg
->pfc
.pfcenable
)) {
760 i40e_update_link_xoff_rx(pf
);
764 for (i
= 0; i
< I40E_MAX_USER_PRIORITY
; i
++) {
765 u64 prio_xoff
= nsd
->priority_xoff_rx
[i
];
766 i40e_stat_update32(hw
, I40E_GLPRT_PXOFFRXC(hw
->port
, i
),
767 pf
->stat_offsets_loaded
,
768 &osd
->priority_xoff_rx
[i
],
769 &nsd
->priority_xoff_rx
[i
]);
771 /* No new PFC xoff rx */
772 if (!(nsd
->priority_xoff_rx
[i
] - prio_xoff
))
774 /* Get the TC for given priority */
775 tc
= dcb_cfg
->etscfg
.prioritytable
[i
];
779 /* Clear the __I40E_HANG_CHECK_ARMED bit for Tx rings */
780 for (v
= 0; v
< pf
->num_alloc_vsi
; v
++) {
781 struct i40e_vsi
*vsi
= pf
->vsi
[v
];
783 if (!vsi
|| !vsi
->tx_rings
[0])
786 for (i
= 0; i
< vsi
->num_queue_pairs
; i
++) {
787 struct i40e_ring
*ring
= vsi
->tx_rings
[i
];
791 clear_bit(__I40E_HANG_CHECK_ARMED
,
798 * i40e_update_vsi_stats - Update the vsi statistics counters.
799 * @vsi: the VSI to be updated
801 * There are a few instances where we store the same stat in a
802 * couple of different structs. This is partly because we have
803 * the netdev stats that need to be filled out, which is slightly
804 * different from the "eth_stats" defined by the chip and used in
805 * VF communications. We sort it out here.
807 static void i40e_update_vsi_stats(struct i40e_vsi
*vsi
)
809 struct i40e_pf
*pf
= vsi
->back
;
810 struct rtnl_link_stats64
*ons
;
811 struct rtnl_link_stats64
*ns
; /* netdev stats */
812 struct i40e_eth_stats
*oes
;
813 struct i40e_eth_stats
*es
; /* device's eth stats */
814 u32 tx_restart
, tx_busy
;
820 if (test_bit(__I40E_DOWN
, &vsi
->state
) ||
821 test_bit(__I40E_CONFIG_BUSY
, &pf
->state
))
824 ns
= i40e_get_vsi_stats_struct(vsi
);
825 ons
= &vsi
->net_stats_offsets
;
826 es
= &vsi
->eth_stats
;
827 oes
= &vsi
->eth_stats_offsets
;
829 /* Gather up the netdev and vsi stats that the driver collects
830 * on the fly during packet processing
834 tx_restart
= tx_busy
= 0;
838 for (q
= 0; q
< vsi
->num_queue_pairs
; q
++) {
844 p
= ACCESS_ONCE(vsi
->tx_rings
[q
]);
847 start
= u64_stats_fetch_begin_irq(&p
->syncp
);
848 packets
= p
->stats
.packets
;
849 bytes
= p
->stats
.bytes
;
850 } while (u64_stats_fetch_retry_irq(&p
->syncp
, start
));
853 tx_restart
+= p
->tx_stats
.restart_queue
;
854 tx_busy
+= p
->tx_stats
.tx_busy
;
856 /* Rx queue is part of the same block as Tx queue */
859 start
= u64_stats_fetch_begin_irq(&p
->syncp
);
860 packets
= p
->stats
.packets
;
861 bytes
= p
->stats
.bytes
;
862 } while (u64_stats_fetch_retry_irq(&p
->syncp
, start
));
865 rx_buf
+= p
->rx_stats
.alloc_buff_failed
;
866 rx_page
+= p
->rx_stats
.alloc_page_failed
;
869 vsi
->tx_restart
= tx_restart
;
870 vsi
->tx_busy
= tx_busy
;
871 vsi
->rx_page_failed
= rx_page
;
872 vsi
->rx_buf_failed
= rx_buf
;
874 ns
->rx_packets
= rx_p
;
876 ns
->tx_packets
= tx_p
;
879 /* update netdev stats from eth stats */
880 i40e_update_eth_stats(vsi
);
881 ons
->tx_errors
= oes
->tx_errors
;
882 ns
->tx_errors
= es
->tx_errors
;
883 ons
->multicast
= oes
->rx_multicast
;
884 ns
->multicast
= es
->rx_multicast
;
885 ons
->rx_dropped
= oes
->rx_discards
;
886 ns
->rx_dropped
= es
->rx_discards
;
887 ons
->tx_dropped
= oes
->tx_discards
;
888 ns
->tx_dropped
= es
->tx_discards
;
890 /* pull in a couple PF stats if this is the main vsi */
891 if (vsi
== pf
->vsi
[pf
->lan_vsi
]) {
892 ns
->rx_crc_errors
= pf
->stats
.crc_errors
;
893 ns
->rx_errors
= pf
->stats
.crc_errors
+ pf
->stats
.illegal_bytes
;
894 ns
->rx_length_errors
= pf
->stats
.rx_length_errors
;
899 * i40e_update_pf_stats - Update the pf statistics counters.
900 * @pf: the PF to be updated
902 static void i40e_update_pf_stats(struct i40e_pf
*pf
)
904 struct i40e_hw_port_stats
*osd
= &pf
->stats_offsets
;
905 struct i40e_hw_port_stats
*nsd
= &pf
->stats
;
906 struct i40e_hw
*hw
= &pf
->hw
;
910 i40e_stat_update48(hw
, I40E_GLPRT_GORCH(hw
->port
),
911 I40E_GLPRT_GORCL(hw
->port
),
912 pf
->stat_offsets_loaded
,
913 &osd
->eth
.rx_bytes
, &nsd
->eth
.rx_bytes
);
914 i40e_stat_update48(hw
, I40E_GLPRT_GOTCH(hw
->port
),
915 I40E_GLPRT_GOTCL(hw
->port
),
916 pf
->stat_offsets_loaded
,
917 &osd
->eth
.tx_bytes
, &nsd
->eth
.tx_bytes
);
918 i40e_stat_update32(hw
, I40E_GLPRT_RDPC(hw
->port
),
919 pf
->stat_offsets_loaded
,
920 &osd
->eth
.rx_discards
,
921 &nsd
->eth
.rx_discards
);
922 i40e_stat_update32(hw
, I40E_GLPRT_TDPC(hw
->port
),
923 pf
->stat_offsets_loaded
,
924 &osd
->eth
.tx_discards
,
925 &nsd
->eth
.tx_discards
);
927 i40e_stat_update48(hw
, I40E_GLPRT_UPRCH(hw
->port
),
928 I40E_GLPRT_UPRCL(hw
->port
),
929 pf
->stat_offsets_loaded
,
930 &osd
->eth
.rx_unicast
,
931 &nsd
->eth
.rx_unicast
);
932 i40e_stat_update48(hw
, I40E_GLPRT_MPRCH(hw
->port
),
933 I40E_GLPRT_MPRCL(hw
->port
),
934 pf
->stat_offsets_loaded
,
935 &osd
->eth
.rx_multicast
,
936 &nsd
->eth
.rx_multicast
);
937 i40e_stat_update48(hw
, I40E_GLPRT_BPRCH(hw
->port
),
938 I40E_GLPRT_BPRCL(hw
->port
),
939 pf
->stat_offsets_loaded
,
940 &osd
->eth
.rx_broadcast
,
941 &nsd
->eth
.rx_broadcast
);
942 i40e_stat_update48(hw
, I40E_GLPRT_UPTCH(hw
->port
),
943 I40E_GLPRT_UPTCL(hw
->port
),
944 pf
->stat_offsets_loaded
,
945 &osd
->eth
.tx_unicast
,
946 &nsd
->eth
.tx_unicast
);
947 i40e_stat_update48(hw
, I40E_GLPRT_MPTCH(hw
->port
),
948 I40E_GLPRT_MPTCL(hw
->port
),
949 pf
->stat_offsets_loaded
,
950 &osd
->eth
.tx_multicast
,
951 &nsd
->eth
.tx_multicast
);
952 i40e_stat_update48(hw
, I40E_GLPRT_BPTCH(hw
->port
),
953 I40E_GLPRT_BPTCL(hw
->port
),
954 pf
->stat_offsets_loaded
,
955 &osd
->eth
.tx_broadcast
,
956 &nsd
->eth
.tx_broadcast
);
958 i40e_stat_update32(hw
, I40E_GLPRT_TDOLD(hw
->port
),
959 pf
->stat_offsets_loaded
,
960 &osd
->tx_dropped_link_down
,
961 &nsd
->tx_dropped_link_down
);
963 i40e_stat_update32(hw
, I40E_GLPRT_CRCERRS(hw
->port
),
964 pf
->stat_offsets_loaded
,
965 &osd
->crc_errors
, &nsd
->crc_errors
);
967 i40e_stat_update32(hw
, I40E_GLPRT_ILLERRC(hw
->port
),
968 pf
->stat_offsets_loaded
,
969 &osd
->illegal_bytes
, &nsd
->illegal_bytes
);
971 i40e_stat_update32(hw
, I40E_GLPRT_MLFC(hw
->port
),
972 pf
->stat_offsets_loaded
,
973 &osd
->mac_local_faults
,
974 &nsd
->mac_local_faults
);
975 i40e_stat_update32(hw
, I40E_GLPRT_MRFC(hw
->port
),
976 pf
->stat_offsets_loaded
,
977 &osd
->mac_remote_faults
,
978 &nsd
->mac_remote_faults
);
980 i40e_stat_update32(hw
, I40E_GLPRT_RLEC(hw
->port
),
981 pf
->stat_offsets_loaded
,
982 &osd
->rx_length_errors
,
983 &nsd
->rx_length_errors
);
985 i40e_stat_update32(hw
, I40E_GLPRT_LXONRXC(hw
->port
),
986 pf
->stat_offsets_loaded
,
987 &osd
->link_xon_rx
, &nsd
->link_xon_rx
);
988 i40e_stat_update32(hw
, I40E_GLPRT_LXONTXC(hw
->port
),
989 pf
->stat_offsets_loaded
,
990 &osd
->link_xon_tx
, &nsd
->link_xon_tx
);
991 i40e_update_prio_xoff_rx(pf
); /* handles I40E_GLPRT_LXOFFRXC */
992 i40e_stat_update32(hw
, I40E_GLPRT_LXOFFTXC(hw
->port
),
993 pf
->stat_offsets_loaded
,
994 &osd
->link_xoff_tx
, &nsd
->link_xoff_tx
);
996 for (i
= 0; i
< 8; i
++) {
997 i40e_stat_update32(hw
, I40E_GLPRT_PXONRXC(hw
->port
, i
),
998 pf
->stat_offsets_loaded
,
999 &osd
->priority_xon_rx
[i
],
1000 &nsd
->priority_xon_rx
[i
]);
1001 i40e_stat_update32(hw
, I40E_GLPRT_PXONTXC(hw
->port
, i
),
1002 pf
->stat_offsets_loaded
,
1003 &osd
->priority_xon_tx
[i
],
1004 &nsd
->priority_xon_tx
[i
]);
1005 i40e_stat_update32(hw
, I40E_GLPRT_PXOFFTXC(hw
->port
, i
),
1006 pf
->stat_offsets_loaded
,
1007 &osd
->priority_xoff_tx
[i
],
1008 &nsd
->priority_xoff_tx
[i
]);
1009 i40e_stat_update32(hw
,
1010 I40E_GLPRT_RXON2OFFCNT(hw
->port
, i
),
1011 pf
->stat_offsets_loaded
,
1012 &osd
->priority_xon_2_xoff
[i
],
1013 &nsd
->priority_xon_2_xoff
[i
]);
1016 i40e_stat_update48(hw
, I40E_GLPRT_PRC64H(hw
->port
),
1017 I40E_GLPRT_PRC64L(hw
->port
),
1018 pf
->stat_offsets_loaded
,
1019 &osd
->rx_size_64
, &nsd
->rx_size_64
);
1020 i40e_stat_update48(hw
, I40E_GLPRT_PRC127H(hw
->port
),
1021 I40E_GLPRT_PRC127L(hw
->port
),
1022 pf
->stat_offsets_loaded
,
1023 &osd
->rx_size_127
, &nsd
->rx_size_127
);
1024 i40e_stat_update48(hw
, I40E_GLPRT_PRC255H(hw
->port
),
1025 I40E_GLPRT_PRC255L(hw
->port
),
1026 pf
->stat_offsets_loaded
,
1027 &osd
->rx_size_255
, &nsd
->rx_size_255
);
1028 i40e_stat_update48(hw
, I40E_GLPRT_PRC511H(hw
->port
),
1029 I40E_GLPRT_PRC511L(hw
->port
),
1030 pf
->stat_offsets_loaded
,
1031 &osd
->rx_size_511
, &nsd
->rx_size_511
);
1032 i40e_stat_update48(hw
, I40E_GLPRT_PRC1023H(hw
->port
),
1033 I40E_GLPRT_PRC1023L(hw
->port
),
1034 pf
->stat_offsets_loaded
,
1035 &osd
->rx_size_1023
, &nsd
->rx_size_1023
);
1036 i40e_stat_update48(hw
, I40E_GLPRT_PRC1522H(hw
->port
),
1037 I40E_GLPRT_PRC1522L(hw
->port
),
1038 pf
->stat_offsets_loaded
,
1039 &osd
->rx_size_1522
, &nsd
->rx_size_1522
);
1040 i40e_stat_update48(hw
, I40E_GLPRT_PRC9522H(hw
->port
),
1041 I40E_GLPRT_PRC9522L(hw
->port
),
1042 pf
->stat_offsets_loaded
,
1043 &osd
->rx_size_big
, &nsd
->rx_size_big
);
1045 i40e_stat_update48(hw
, I40E_GLPRT_PTC64H(hw
->port
),
1046 I40E_GLPRT_PTC64L(hw
->port
),
1047 pf
->stat_offsets_loaded
,
1048 &osd
->tx_size_64
, &nsd
->tx_size_64
);
1049 i40e_stat_update48(hw
, I40E_GLPRT_PTC127H(hw
->port
),
1050 I40E_GLPRT_PTC127L(hw
->port
),
1051 pf
->stat_offsets_loaded
,
1052 &osd
->tx_size_127
, &nsd
->tx_size_127
);
1053 i40e_stat_update48(hw
, I40E_GLPRT_PTC255H(hw
->port
),
1054 I40E_GLPRT_PTC255L(hw
->port
),
1055 pf
->stat_offsets_loaded
,
1056 &osd
->tx_size_255
, &nsd
->tx_size_255
);
1057 i40e_stat_update48(hw
, I40E_GLPRT_PTC511H(hw
->port
),
1058 I40E_GLPRT_PTC511L(hw
->port
),
1059 pf
->stat_offsets_loaded
,
1060 &osd
->tx_size_511
, &nsd
->tx_size_511
);
1061 i40e_stat_update48(hw
, I40E_GLPRT_PTC1023H(hw
->port
),
1062 I40E_GLPRT_PTC1023L(hw
->port
),
1063 pf
->stat_offsets_loaded
,
1064 &osd
->tx_size_1023
, &nsd
->tx_size_1023
);
1065 i40e_stat_update48(hw
, I40E_GLPRT_PTC1522H(hw
->port
),
1066 I40E_GLPRT_PTC1522L(hw
->port
),
1067 pf
->stat_offsets_loaded
,
1068 &osd
->tx_size_1522
, &nsd
->tx_size_1522
);
1069 i40e_stat_update48(hw
, I40E_GLPRT_PTC9522H(hw
->port
),
1070 I40E_GLPRT_PTC9522L(hw
->port
),
1071 pf
->stat_offsets_loaded
,
1072 &osd
->tx_size_big
, &nsd
->tx_size_big
);
1074 i40e_stat_update32(hw
, I40E_GLPRT_RUC(hw
->port
),
1075 pf
->stat_offsets_loaded
,
1076 &osd
->rx_undersize
, &nsd
->rx_undersize
);
1077 i40e_stat_update32(hw
, I40E_GLPRT_RFC(hw
->port
),
1078 pf
->stat_offsets_loaded
,
1079 &osd
->rx_fragments
, &nsd
->rx_fragments
);
1080 i40e_stat_update32(hw
, I40E_GLPRT_ROC(hw
->port
),
1081 pf
->stat_offsets_loaded
,
1082 &osd
->rx_oversize
, &nsd
->rx_oversize
);
1083 i40e_stat_update32(hw
, I40E_GLPRT_RJC(hw
->port
),
1084 pf
->stat_offsets_loaded
,
1085 &osd
->rx_jabber
, &nsd
->rx_jabber
);
1088 i40e_stat_update32(hw
, I40E_GLQF_PCNT(pf
->fd_atr_cnt_idx
),
1089 pf
->stat_offsets_loaded
,
1090 &osd
->fd_atr_match
, &nsd
->fd_atr_match
);
1091 i40e_stat_update32(hw
, I40E_GLQF_PCNT(pf
->fd_sb_cnt_idx
),
1092 pf
->stat_offsets_loaded
,
1093 &osd
->fd_sb_match
, &nsd
->fd_sb_match
);
1095 val
= rd32(hw
, I40E_PRTPM_EEE_STAT
);
1096 nsd
->tx_lpi_status
=
1097 (val
& I40E_PRTPM_EEE_STAT_TX_LPI_STATUS_MASK
) >>
1098 I40E_PRTPM_EEE_STAT_TX_LPI_STATUS_SHIFT
;
1099 nsd
->rx_lpi_status
=
1100 (val
& I40E_PRTPM_EEE_STAT_RX_LPI_STATUS_MASK
) >>
1101 I40E_PRTPM_EEE_STAT_RX_LPI_STATUS_SHIFT
;
1102 i40e_stat_update32(hw
, I40E_PRTPM_TLPIC
,
1103 pf
->stat_offsets_loaded
,
1104 &osd
->tx_lpi_count
, &nsd
->tx_lpi_count
);
1105 i40e_stat_update32(hw
, I40E_PRTPM_RLPIC
,
1106 pf
->stat_offsets_loaded
,
1107 &osd
->rx_lpi_count
, &nsd
->rx_lpi_count
);
1109 pf
->stat_offsets_loaded
= true;
1113 * i40e_update_stats - Update the various statistics counters.
1114 * @vsi: the VSI to be updated
1116 * Update the various stats for this VSI and its related entities.
1118 void i40e_update_stats(struct i40e_vsi
*vsi
)
1120 struct i40e_pf
*pf
= vsi
->back
;
1122 if (vsi
== pf
->vsi
[pf
->lan_vsi
])
1123 i40e_update_pf_stats(pf
);
1125 i40e_update_vsi_stats(vsi
);
1127 i40e_update_fcoe_stats(vsi
);
1132 * i40e_find_filter - Search VSI filter list for specific mac/vlan filter
1133 * @vsi: the VSI to be searched
1134 * @macaddr: the MAC address
1136 * @is_vf: make sure its a vf filter, else doesn't matter
1137 * @is_netdev: make sure its a netdev filter, else doesn't matter
1139 * Returns ptr to the filter object or NULL
1141 static struct i40e_mac_filter
*i40e_find_filter(struct i40e_vsi
*vsi
,
1142 u8
*macaddr
, s16 vlan
,
1143 bool is_vf
, bool is_netdev
)
1145 struct i40e_mac_filter
*f
;
1147 if (!vsi
|| !macaddr
)
1150 list_for_each_entry(f
, &vsi
->mac_filter_list
, list
) {
1151 if ((ether_addr_equal(macaddr
, f
->macaddr
)) &&
1152 (vlan
== f
->vlan
) &&
1153 (!is_vf
|| f
->is_vf
) &&
1154 (!is_netdev
|| f
->is_netdev
))
1161 * i40e_find_mac - Find a mac addr in the macvlan filters list
1162 * @vsi: the VSI to be searched
1163 * @macaddr: the MAC address we are searching for
1164 * @is_vf: make sure its a vf filter, else doesn't matter
1165 * @is_netdev: make sure its a netdev filter, else doesn't matter
1167 * Returns the first filter with the provided MAC address or NULL if
1168 * MAC address was not found
1170 struct i40e_mac_filter
*i40e_find_mac(struct i40e_vsi
*vsi
, u8
*macaddr
,
1171 bool is_vf
, bool is_netdev
)
1173 struct i40e_mac_filter
*f
;
1175 if (!vsi
|| !macaddr
)
1178 list_for_each_entry(f
, &vsi
->mac_filter_list
, list
) {
1179 if ((ether_addr_equal(macaddr
, f
->macaddr
)) &&
1180 (!is_vf
|| f
->is_vf
) &&
1181 (!is_netdev
|| f
->is_netdev
))
1188 * i40e_is_vsi_in_vlan - Check if VSI is in vlan mode
1189 * @vsi: the VSI to be searched
1191 * Returns true if VSI is in vlan mode or false otherwise
1193 bool i40e_is_vsi_in_vlan(struct i40e_vsi
*vsi
)
1195 struct i40e_mac_filter
*f
;
1197 /* Only -1 for all the filters denotes not in vlan mode
1198 * so we have to go through all the list in order to make sure
1200 list_for_each_entry(f
, &vsi
->mac_filter_list
, list
) {
1209 * i40e_put_mac_in_vlan - Make macvlan filters from macaddrs and vlans
1210 * @vsi: the VSI to be searched
1211 * @macaddr: the mac address to be filtered
1212 * @is_vf: true if it is a vf
1213 * @is_netdev: true if it is a netdev
1215 * Goes through all the macvlan filters and adds a
1216 * macvlan filter for each unique vlan that already exists
1218 * Returns first filter found on success, else NULL
1220 struct i40e_mac_filter
*i40e_put_mac_in_vlan(struct i40e_vsi
*vsi
, u8
*macaddr
,
1221 bool is_vf
, bool is_netdev
)
1223 struct i40e_mac_filter
*f
;
1225 list_for_each_entry(f
, &vsi
->mac_filter_list
, list
) {
1226 if (!i40e_find_filter(vsi
, macaddr
, f
->vlan
,
1227 is_vf
, is_netdev
)) {
1228 if (!i40e_add_filter(vsi
, macaddr
, f
->vlan
,
1234 return list_first_entry_or_null(&vsi
->mac_filter_list
,
1235 struct i40e_mac_filter
, list
);
1239 * i40e_rm_default_mac_filter - Remove the default MAC filter set by NVM
1240 * @vsi: the PF Main VSI - inappropriate for any other VSI
1241 * @macaddr: the MAC address
1243 * Some older firmware configurations set up a default promiscuous VLAN
1244 * filter that needs to be removed.
1246 static int i40e_rm_default_mac_filter(struct i40e_vsi
*vsi
, u8
*macaddr
)
1248 struct i40e_aqc_remove_macvlan_element_data element
;
1249 struct i40e_pf
*pf
= vsi
->back
;
1252 /* Only appropriate for the PF main VSI */
1253 if (vsi
->type
!= I40E_VSI_MAIN
)
1256 memset(&element
, 0, sizeof(element
));
1257 ether_addr_copy(element
.mac_addr
, macaddr
);
1258 element
.vlan_tag
= 0;
1259 element
.flags
= I40E_AQC_MACVLAN_DEL_PERFECT_MATCH
|
1260 I40E_AQC_MACVLAN_DEL_IGNORE_VLAN
;
1261 aq_ret
= i40e_aq_remove_macvlan(&pf
->hw
, vsi
->seid
, &element
, 1, NULL
);
1269 * i40e_add_filter - Add a mac/vlan filter to the VSI
1270 * @vsi: the VSI to be searched
1271 * @macaddr: the MAC address
1273 * @is_vf: make sure its a vf filter, else doesn't matter
1274 * @is_netdev: make sure its a netdev filter, else doesn't matter
1276 * Returns ptr to the filter object or NULL when no memory available.
1278 struct i40e_mac_filter
*i40e_add_filter(struct i40e_vsi
*vsi
,
1279 u8
*macaddr
, s16 vlan
,
1280 bool is_vf
, bool is_netdev
)
1282 struct i40e_mac_filter
*f
;
1284 if (!vsi
|| !macaddr
)
1287 f
= i40e_find_filter(vsi
, macaddr
, vlan
, is_vf
, is_netdev
);
1289 f
= kzalloc(sizeof(*f
), GFP_ATOMIC
);
1291 goto add_filter_out
;
1293 ether_addr_copy(f
->macaddr
, macaddr
);
1297 INIT_LIST_HEAD(&f
->list
);
1298 list_add(&f
->list
, &vsi
->mac_filter_list
);
1301 /* increment counter and add a new flag if needed */
1307 } else if (is_netdev
) {
1308 if (!f
->is_netdev
) {
1309 f
->is_netdev
= true;
1316 /* changed tells sync_filters_subtask to
1317 * push the filter down to the firmware
1320 vsi
->flags
|= I40E_VSI_FLAG_FILTER_CHANGED
;
1321 vsi
->back
->flags
|= I40E_FLAG_FILTER_SYNC
;
1329 * i40e_del_filter - Remove a mac/vlan filter from the VSI
1330 * @vsi: the VSI to be searched
1331 * @macaddr: the MAC address
1333 * @is_vf: make sure it's a vf filter, else doesn't matter
1334 * @is_netdev: make sure it's a netdev filter, else doesn't matter
1336 void i40e_del_filter(struct i40e_vsi
*vsi
,
1337 u8
*macaddr
, s16 vlan
,
1338 bool is_vf
, bool is_netdev
)
1340 struct i40e_mac_filter
*f
;
1342 if (!vsi
|| !macaddr
)
1345 f
= i40e_find_filter(vsi
, macaddr
, vlan
, is_vf
, is_netdev
);
1346 if (!f
|| f
->counter
== 0)
1354 } else if (is_netdev
) {
1356 f
->is_netdev
= false;
1360 /* make sure we don't remove a filter in use by vf or netdev */
1362 min_f
+= (f
->is_vf
? 1 : 0);
1363 min_f
+= (f
->is_netdev
? 1 : 0);
1365 if (f
->counter
> min_f
)
1369 /* counter == 0 tells sync_filters_subtask to
1370 * remove the filter from the firmware's list
1372 if (f
->counter
== 0) {
1374 vsi
->flags
|= I40E_VSI_FLAG_FILTER_CHANGED
;
1375 vsi
->back
->flags
|= I40E_FLAG_FILTER_SYNC
;
1380 * i40e_set_mac - NDO callback to set mac address
1381 * @netdev: network interface device structure
1382 * @p: pointer to an address structure
1384 * Returns 0 on success, negative on failure
1387 int i40e_set_mac(struct net_device
*netdev
, void *p
)
1389 static int i40e_set_mac(struct net_device
*netdev
, void *p
)
1392 struct i40e_netdev_priv
*np
= netdev_priv(netdev
);
1393 struct i40e_vsi
*vsi
= np
->vsi
;
1394 struct i40e_pf
*pf
= vsi
->back
;
1395 struct i40e_hw
*hw
= &pf
->hw
;
1396 struct sockaddr
*addr
= p
;
1397 struct i40e_mac_filter
*f
;
1399 if (!is_valid_ether_addr(addr
->sa_data
))
1400 return -EADDRNOTAVAIL
;
1402 if (ether_addr_equal(netdev
->dev_addr
, addr
->sa_data
)) {
1403 netdev_info(netdev
, "already using mac address %pM\n",
1408 if (test_bit(__I40E_DOWN
, &vsi
->back
->state
) ||
1409 test_bit(__I40E_RESET_RECOVERY_PENDING
, &vsi
->back
->state
))
1410 return -EADDRNOTAVAIL
;
1412 if (ether_addr_equal(hw
->mac
.addr
, addr
->sa_data
))
1413 netdev_info(netdev
, "returning to hw mac address %pM\n",
1416 netdev_info(netdev
, "set new mac address %pM\n", addr
->sa_data
);
1418 if (vsi
->type
== I40E_VSI_MAIN
) {
1420 ret
= i40e_aq_mac_address_write(&vsi
->back
->hw
,
1421 I40E_AQC_WRITE_TYPE_LAA_WOL
,
1422 addr
->sa_data
, NULL
);
1425 "Addr change for Main VSI failed: %d\n",
1427 return -EADDRNOTAVAIL
;
1431 if (ether_addr_equal(netdev
->dev_addr
, hw
->mac
.addr
)) {
1432 struct i40e_aqc_remove_macvlan_element_data element
;
1434 memset(&element
, 0, sizeof(element
));
1435 ether_addr_copy(element
.mac_addr
, netdev
->dev_addr
);
1436 element
.flags
= I40E_AQC_MACVLAN_DEL_PERFECT_MATCH
;
1437 i40e_aq_remove_macvlan(&pf
->hw
, vsi
->seid
, &element
, 1, NULL
);
1439 i40e_del_filter(vsi
, netdev
->dev_addr
, I40E_VLAN_ANY
,
1443 if (ether_addr_equal(addr
->sa_data
, hw
->mac
.addr
)) {
1444 struct i40e_aqc_add_macvlan_element_data element
;
1446 memset(&element
, 0, sizeof(element
));
1447 ether_addr_copy(element
.mac_addr
, hw
->mac
.addr
);
1448 element
.flags
= cpu_to_le16(I40E_AQC_MACVLAN_ADD_PERFECT_MATCH
);
1449 i40e_aq_add_macvlan(&pf
->hw
, vsi
->seid
, &element
, 1, NULL
);
1451 f
= i40e_add_filter(vsi
, addr
->sa_data
, I40E_VLAN_ANY
,
1457 i40e_sync_vsi_filters(vsi
);
1458 ether_addr_copy(netdev
->dev_addr
, addr
->sa_data
);
1464 * i40e_vsi_setup_queue_map - Setup a VSI queue map based on enabled_tc
1465 * @vsi: the VSI being setup
1466 * @ctxt: VSI context structure
1467 * @enabled_tc: Enabled TCs bitmap
1468 * @is_add: True if called before Add VSI
1470 * Setup VSI queue mapping for enabled traffic classes.
1473 void i40e_vsi_setup_queue_map(struct i40e_vsi
*vsi
,
1474 struct i40e_vsi_context
*ctxt
,
1478 static void i40e_vsi_setup_queue_map(struct i40e_vsi
*vsi
,
1479 struct i40e_vsi_context
*ctxt
,
1484 struct i40e_pf
*pf
= vsi
->back
;
1494 sections
= I40E_AQ_VSI_PROP_QUEUE_MAP_VALID
;
1497 if (enabled_tc
&& (vsi
->back
->flags
& I40E_FLAG_DCB_ENABLED
)) {
1498 /* Find numtc from enabled TC bitmap */
1499 for (i
= 0; i
< I40E_MAX_TRAFFIC_CLASS
; i
++) {
1500 if (enabled_tc
& (1 << i
)) /* TC is enabled */
1504 dev_warn(&pf
->pdev
->dev
, "DCB is enabled but no TC enabled, forcing TC0\n");
1508 /* At least TC0 is enabled in case of non-DCB case */
1512 vsi
->tc_config
.numtc
= numtc
;
1513 vsi
->tc_config
.enabled_tc
= enabled_tc
? enabled_tc
: 1;
1514 /* Number of queues per enabled TC */
1515 num_tc_qps
= vsi
->alloc_queue_pairs
/numtc
;
1516 num_tc_qps
= min_t(int, num_tc_qps
, I40E_MAX_QUEUES_PER_TC
);
1518 /* Setup queue offset/count for all TCs for given VSI */
1519 for (i
= 0; i
< I40E_MAX_TRAFFIC_CLASS
; i
++) {
1520 /* See if the given TC is enabled for the given VSI */
1521 if (vsi
->tc_config
.enabled_tc
& (1 << i
)) { /* TC is enabled */
1524 switch (vsi
->type
) {
1526 qcount
= min_t(int, pf
->rss_size
, num_tc_qps
);
1530 qcount
= num_tc_qps
;
1534 case I40E_VSI_SRIOV
:
1535 case I40E_VSI_VMDQ2
:
1537 qcount
= num_tc_qps
;
1541 vsi
->tc_config
.tc_info
[i
].qoffset
= offset
;
1542 vsi
->tc_config
.tc_info
[i
].qcount
= qcount
;
1544 /* find the power-of-2 of the number of queue pairs */
1547 while (num_qps
&& ((1 << pow
) < qcount
)) {
1552 vsi
->tc_config
.tc_info
[i
].netdev_tc
= netdev_tc
++;
1554 (offset
<< I40E_AQ_VSI_TC_QUE_OFFSET_SHIFT
) |
1555 (pow
<< I40E_AQ_VSI_TC_QUE_NUMBER_SHIFT
);
1559 /* TC is not enabled so set the offset to
1560 * default queue and allocate one queue
1563 vsi
->tc_config
.tc_info
[i
].qoffset
= 0;
1564 vsi
->tc_config
.tc_info
[i
].qcount
= 1;
1565 vsi
->tc_config
.tc_info
[i
].netdev_tc
= 0;
1569 ctxt
->info
.tc_mapping
[i
] = cpu_to_le16(qmap
);
1572 /* Set actual Tx/Rx queue pairs */
1573 vsi
->num_queue_pairs
= offset
;
1575 /* Scheduler section valid can only be set for ADD VSI */
1577 sections
|= I40E_AQ_VSI_PROP_SCHED_VALID
;
1579 ctxt
->info
.up_enable_bits
= enabled_tc
;
1581 if (vsi
->type
== I40E_VSI_SRIOV
) {
1582 ctxt
->info
.mapping_flags
|=
1583 cpu_to_le16(I40E_AQ_VSI_QUE_MAP_NONCONTIG
);
1584 for (i
= 0; i
< vsi
->num_queue_pairs
; i
++)
1585 ctxt
->info
.queue_mapping
[i
] =
1586 cpu_to_le16(vsi
->base_queue
+ i
);
1588 ctxt
->info
.mapping_flags
|=
1589 cpu_to_le16(I40E_AQ_VSI_QUE_MAP_CONTIG
);
1590 ctxt
->info
.queue_mapping
[0] = cpu_to_le16(vsi
->base_queue
);
1592 ctxt
->info
.valid_sections
|= cpu_to_le16(sections
);
1596 * i40e_set_rx_mode - NDO callback to set the netdev filters
1597 * @netdev: network interface device structure
1600 void i40e_set_rx_mode(struct net_device
*netdev
)
1602 static void i40e_set_rx_mode(struct net_device
*netdev
)
1605 struct i40e_netdev_priv
*np
= netdev_priv(netdev
);
1606 struct i40e_mac_filter
*f
, *ftmp
;
1607 struct i40e_vsi
*vsi
= np
->vsi
;
1608 struct netdev_hw_addr
*uca
;
1609 struct netdev_hw_addr
*mca
;
1610 struct netdev_hw_addr
*ha
;
1612 /* add addr if not already in the filter list */
1613 netdev_for_each_uc_addr(uca
, netdev
) {
1614 if (!i40e_find_mac(vsi
, uca
->addr
, false, true)) {
1615 if (i40e_is_vsi_in_vlan(vsi
))
1616 i40e_put_mac_in_vlan(vsi
, uca
->addr
,
1619 i40e_add_filter(vsi
, uca
->addr
, I40E_VLAN_ANY
,
1624 netdev_for_each_mc_addr(mca
, netdev
) {
1625 if (!i40e_find_mac(vsi
, mca
->addr
, false, true)) {
1626 if (i40e_is_vsi_in_vlan(vsi
))
1627 i40e_put_mac_in_vlan(vsi
, mca
->addr
,
1630 i40e_add_filter(vsi
, mca
->addr
, I40E_VLAN_ANY
,
1635 /* remove filter if not in netdev list */
1636 list_for_each_entry_safe(f
, ftmp
, &vsi
->mac_filter_list
, list
) {
1642 if (is_multicast_ether_addr(f
->macaddr
)) {
1643 netdev_for_each_mc_addr(mca
, netdev
) {
1644 if (ether_addr_equal(mca
->addr
, f
->macaddr
)) {
1650 netdev_for_each_uc_addr(uca
, netdev
) {
1651 if (ether_addr_equal(uca
->addr
, f
->macaddr
)) {
1657 for_each_dev_addr(netdev
, ha
) {
1658 if (ether_addr_equal(ha
->addr
, f
->macaddr
)) {
1666 vsi
, f
->macaddr
, I40E_VLAN_ANY
, false, true);
1669 /* check for other flag changes */
1670 if (vsi
->current_netdev_flags
!= vsi
->netdev
->flags
) {
1671 vsi
->flags
|= I40E_VSI_FLAG_FILTER_CHANGED
;
1672 vsi
->back
->flags
|= I40E_FLAG_FILTER_SYNC
;
1677 * i40e_sync_vsi_filters - Update the VSI filter list to the HW
1678 * @vsi: ptr to the VSI
1680 * Push any outstanding VSI filter changes through the AdminQ.
1682 * Returns 0 or error value
1684 int i40e_sync_vsi_filters(struct i40e_vsi
*vsi
)
1686 struct i40e_mac_filter
*f
, *ftmp
;
1687 bool promisc_forced_on
= false;
1688 bool add_happened
= false;
1689 int filter_list_len
= 0;
1690 u32 changed_flags
= 0;
1691 i40e_status aq_ret
= 0;
1697 /* empty array typed pointers, kcalloc later */
1698 struct i40e_aqc_add_macvlan_element_data
*add_list
;
1699 struct i40e_aqc_remove_macvlan_element_data
*del_list
;
1701 while (test_and_set_bit(__I40E_CONFIG_BUSY
, &vsi
->state
))
1702 usleep_range(1000, 2000);
1706 changed_flags
= vsi
->current_netdev_flags
^ vsi
->netdev
->flags
;
1707 vsi
->current_netdev_flags
= vsi
->netdev
->flags
;
1710 if (vsi
->flags
& I40E_VSI_FLAG_FILTER_CHANGED
) {
1711 vsi
->flags
&= ~I40E_VSI_FLAG_FILTER_CHANGED
;
1713 filter_list_len
= pf
->hw
.aq
.asq_buf_size
/
1714 sizeof(struct i40e_aqc_remove_macvlan_element_data
);
1715 del_list
= kcalloc(filter_list_len
,
1716 sizeof(struct i40e_aqc_remove_macvlan_element_data
),
1721 list_for_each_entry_safe(f
, ftmp
, &vsi
->mac_filter_list
, list
) {
1725 if (f
->counter
!= 0)
1730 /* add to delete list */
1731 ether_addr_copy(del_list
[num_del
].mac_addr
, f
->macaddr
);
1732 del_list
[num_del
].vlan_tag
=
1733 cpu_to_le16((u16
)(f
->vlan
==
1734 I40E_VLAN_ANY
? 0 : f
->vlan
));
1736 cmd_flags
|= I40E_AQC_MACVLAN_DEL_PERFECT_MATCH
;
1737 del_list
[num_del
].flags
= cmd_flags
;
1740 /* unlink from filter list */
1744 /* flush a full buffer */
1745 if (num_del
== filter_list_len
) {
1746 aq_ret
= i40e_aq_remove_macvlan(&pf
->hw
,
1747 vsi
->seid
, del_list
, num_del
,
1750 memset(del_list
, 0, sizeof(*del_list
));
1753 pf
->hw
.aq
.asq_last_status
!=
1755 dev_info(&pf
->pdev
->dev
,
1756 "ignoring delete macvlan error, err %d, aq_err %d while flushing a full buffer\n",
1758 pf
->hw
.aq
.asq_last_status
);
1762 aq_ret
= i40e_aq_remove_macvlan(&pf
->hw
, vsi
->seid
,
1763 del_list
, num_del
, NULL
);
1767 pf
->hw
.aq
.asq_last_status
!= I40E_AQ_RC_ENOENT
)
1768 dev_info(&pf
->pdev
->dev
,
1769 "ignoring delete macvlan error, err %d, aq_err %d\n",
1770 aq_ret
, pf
->hw
.aq
.asq_last_status
);
1776 /* do all the adds now */
1777 filter_list_len
= pf
->hw
.aq
.asq_buf_size
/
1778 sizeof(struct i40e_aqc_add_macvlan_element_data
),
1779 add_list
= kcalloc(filter_list_len
,
1780 sizeof(struct i40e_aqc_add_macvlan_element_data
),
1785 list_for_each_entry_safe(f
, ftmp
, &vsi
->mac_filter_list
, list
) {
1789 if (f
->counter
== 0)
1792 add_happened
= true;
1795 /* add to add array */
1796 ether_addr_copy(add_list
[num_add
].mac_addr
, f
->macaddr
);
1797 add_list
[num_add
].vlan_tag
=
1799 (u16
)(f
->vlan
== I40E_VLAN_ANY
? 0 : f
->vlan
));
1800 add_list
[num_add
].queue_number
= 0;
1802 cmd_flags
|= I40E_AQC_MACVLAN_ADD_PERFECT_MATCH
;
1803 add_list
[num_add
].flags
= cpu_to_le16(cmd_flags
);
1806 /* flush a full buffer */
1807 if (num_add
== filter_list_len
) {
1808 aq_ret
= i40e_aq_add_macvlan(&pf
->hw
, vsi
->seid
,
1815 memset(add_list
, 0, sizeof(*add_list
));
1819 aq_ret
= i40e_aq_add_macvlan(&pf
->hw
, vsi
->seid
,
1820 add_list
, num_add
, NULL
);
1826 if (add_happened
&& aq_ret
&&
1827 pf
->hw
.aq
.asq_last_status
!= I40E_AQ_RC_EINVAL
) {
1828 dev_info(&pf
->pdev
->dev
,
1829 "add filter failed, err %d, aq_err %d\n",
1830 aq_ret
, pf
->hw
.aq
.asq_last_status
);
1831 if ((pf
->hw
.aq
.asq_last_status
== I40E_AQ_RC_ENOSPC
) &&
1832 !test_bit(__I40E_FILTER_OVERFLOW_PROMISC
,
1834 promisc_forced_on
= true;
1835 set_bit(__I40E_FILTER_OVERFLOW_PROMISC
,
1837 dev_info(&pf
->pdev
->dev
, "promiscuous mode forced on\n");
1842 /* check for changes in promiscuous modes */
1843 if (changed_flags
& IFF_ALLMULTI
) {
1844 bool cur_multipromisc
;
1845 cur_multipromisc
= !!(vsi
->current_netdev_flags
& IFF_ALLMULTI
);
1846 aq_ret
= i40e_aq_set_vsi_multicast_promiscuous(&vsi
->back
->hw
,
1851 dev_info(&pf
->pdev
->dev
,
1852 "set multi promisc failed, err %d, aq_err %d\n",
1853 aq_ret
, pf
->hw
.aq
.asq_last_status
);
1855 if ((changed_flags
& IFF_PROMISC
) || promisc_forced_on
) {
1857 cur_promisc
= (!!(vsi
->current_netdev_flags
& IFF_PROMISC
) ||
1858 test_bit(__I40E_FILTER_OVERFLOW_PROMISC
,
1860 aq_ret
= i40e_aq_set_vsi_unicast_promiscuous(&vsi
->back
->hw
,
1864 dev_info(&pf
->pdev
->dev
,
1865 "set uni promisc failed, err %d, aq_err %d\n",
1866 aq_ret
, pf
->hw
.aq
.asq_last_status
);
1867 aq_ret
= i40e_aq_set_vsi_broadcast(&vsi
->back
->hw
,
1871 dev_info(&pf
->pdev
->dev
,
1872 "set brdcast promisc failed, err %d, aq_err %d\n",
1873 aq_ret
, pf
->hw
.aq
.asq_last_status
);
1876 clear_bit(__I40E_CONFIG_BUSY
, &vsi
->state
);
1881 * i40e_sync_filters_subtask - Sync the VSI filter list with HW
1882 * @pf: board private structure
1884 static void i40e_sync_filters_subtask(struct i40e_pf
*pf
)
1888 if (!pf
|| !(pf
->flags
& I40E_FLAG_FILTER_SYNC
))
1890 pf
->flags
&= ~I40E_FLAG_FILTER_SYNC
;
1892 for (v
= 0; v
< pf
->num_alloc_vsi
; v
++) {
1894 (pf
->vsi
[v
]->flags
& I40E_VSI_FLAG_FILTER_CHANGED
))
1895 i40e_sync_vsi_filters(pf
->vsi
[v
]);
1900 * i40e_change_mtu - NDO callback to change the Maximum Transfer Unit
1901 * @netdev: network interface device structure
1902 * @new_mtu: new value for maximum frame size
1904 * Returns 0 on success, negative on failure
1906 static int i40e_change_mtu(struct net_device
*netdev
, int new_mtu
)
1908 struct i40e_netdev_priv
*np
= netdev_priv(netdev
);
1909 int max_frame
= new_mtu
+ ETH_HLEN
+ ETH_FCS_LEN
+ VLAN_HLEN
;
1910 struct i40e_vsi
*vsi
= np
->vsi
;
1912 /* MTU < 68 is an error and causes problems on some kernels */
1913 if ((new_mtu
< 68) || (max_frame
> I40E_MAX_RXBUFFER
))
1916 netdev_info(netdev
, "changing MTU from %d to %d\n",
1917 netdev
->mtu
, new_mtu
);
1918 netdev
->mtu
= new_mtu
;
1919 if (netif_running(netdev
))
1920 i40e_vsi_reinit_locked(vsi
);
1926 * i40e_ioctl - Access the hwtstamp interface
1927 * @netdev: network interface device structure
1928 * @ifr: interface request data
1929 * @cmd: ioctl command
1931 int i40e_ioctl(struct net_device
*netdev
, struct ifreq
*ifr
, int cmd
)
1933 struct i40e_netdev_priv
*np
= netdev_priv(netdev
);
1934 struct i40e_pf
*pf
= np
->vsi
->back
;
1938 return i40e_ptp_get_ts_config(pf
, ifr
);
1940 return i40e_ptp_set_ts_config(pf
, ifr
);
1947 * i40e_vlan_stripping_enable - Turn on vlan stripping for the VSI
1948 * @vsi: the vsi being adjusted
1950 void i40e_vlan_stripping_enable(struct i40e_vsi
*vsi
)
1952 struct i40e_vsi_context ctxt
;
1955 if ((vsi
->info
.valid_sections
&
1956 cpu_to_le16(I40E_AQ_VSI_PROP_VLAN_VALID
)) &&
1957 ((vsi
->info
.port_vlan_flags
& I40E_AQ_VSI_PVLAN_MODE_MASK
) == 0))
1958 return; /* already enabled */
1960 vsi
->info
.valid_sections
= cpu_to_le16(I40E_AQ_VSI_PROP_VLAN_VALID
);
1961 vsi
->info
.port_vlan_flags
= I40E_AQ_VSI_PVLAN_MODE_ALL
|
1962 I40E_AQ_VSI_PVLAN_EMOD_STR_BOTH
;
1964 ctxt
.seid
= vsi
->seid
;
1965 memcpy(&ctxt
.info
, &vsi
->info
, sizeof(vsi
->info
));
1966 ret
= i40e_aq_update_vsi_params(&vsi
->back
->hw
, &ctxt
, NULL
);
1968 dev_info(&vsi
->back
->pdev
->dev
,
1969 "%s: update vsi failed, aq_err=%d\n",
1970 __func__
, vsi
->back
->hw
.aq
.asq_last_status
);
1975 * i40e_vlan_stripping_disable - Turn off vlan stripping for the VSI
1976 * @vsi: the vsi being adjusted
1978 void i40e_vlan_stripping_disable(struct i40e_vsi
*vsi
)
1980 struct i40e_vsi_context ctxt
;
1983 if ((vsi
->info
.valid_sections
&
1984 cpu_to_le16(I40E_AQ_VSI_PROP_VLAN_VALID
)) &&
1985 ((vsi
->info
.port_vlan_flags
& I40E_AQ_VSI_PVLAN_EMOD_MASK
) ==
1986 I40E_AQ_VSI_PVLAN_EMOD_MASK
))
1987 return; /* already disabled */
1989 vsi
->info
.valid_sections
= cpu_to_le16(I40E_AQ_VSI_PROP_VLAN_VALID
);
1990 vsi
->info
.port_vlan_flags
= I40E_AQ_VSI_PVLAN_MODE_ALL
|
1991 I40E_AQ_VSI_PVLAN_EMOD_NOTHING
;
1993 ctxt
.seid
= vsi
->seid
;
1994 memcpy(&ctxt
.info
, &vsi
->info
, sizeof(vsi
->info
));
1995 ret
= i40e_aq_update_vsi_params(&vsi
->back
->hw
, &ctxt
, NULL
);
1997 dev_info(&vsi
->back
->pdev
->dev
,
1998 "%s: update vsi failed, aq_err=%d\n",
1999 __func__
, vsi
->back
->hw
.aq
.asq_last_status
);
2004 * i40e_vlan_rx_register - Setup or shutdown vlan offload
2005 * @netdev: network interface to be adjusted
2006 * @features: netdev features to test if VLAN offload is enabled or not
2008 static void i40e_vlan_rx_register(struct net_device
*netdev
, u32 features
)
2010 struct i40e_netdev_priv
*np
= netdev_priv(netdev
);
2011 struct i40e_vsi
*vsi
= np
->vsi
;
2013 if (features
& NETIF_F_HW_VLAN_CTAG_RX
)
2014 i40e_vlan_stripping_enable(vsi
);
2016 i40e_vlan_stripping_disable(vsi
);
2020 * i40e_vsi_add_vlan - Add vsi membership for given vlan
2021 * @vsi: the vsi being configured
2022 * @vid: vlan id to be added (0 = untagged only , -1 = any)
2024 int i40e_vsi_add_vlan(struct i40e_vsi
*vsi
, s16 vid
)
2026 struct i40e_mac_filter
*f
, *add_f
;
2027 bool is_netdev
, is_vf
;
2029 is_vf
= (vsi
->type
== I40E_VSI_SRIOV
);
2030 is_netdev
= !!(vsi
->netdev
);
2033 add_f
= i40e_add_filter(vsi
, vsi
->netdev
->dev_addr
, vid
,
2036 dev_info(&vsi
->back
->pdev
->dev
,
2037 "Could not add vlan filter %d for %pM\n",
2038 vid
, vsi
->netdev
->dev_addr
);
2043 list_for_each_entry(f
, &vsi
->mac_filter_list
, list
) {
2044 add_f
= i40e_add_filter(vsi
, f
->macaddr
, vid
, is_vf
, is_netdev
);
2046 dev_info(&vsi
->back
->pdev
->dev
,
2047 "Could not add vlan filter %d for %pM\n",
2053 /* Now if we add a vlan tag, make sure to check if it is the first
2054 * tag (i.e. a "tag" -1 does exist) and if so replace the -1 "tag"
2055 * with 0, so we now accept untagged and specified tagged traffic
2056 * (and not any taged and untagged)
2059 if (is_netdev
&& i40e_find_filter(vsi
, vsi
->netdev
->dev_addr
,
2061 is_vf
, is_netdev
)) {
2062 i40e_del_filter(vsi
, vsi
->netdev
->dev_addr
,
2063 I40E_VLAN_ANY
, is_vf
, is_netdev
);
2064 add_f
= i40e_add_filter(vsi
, vsi
->netdev
->dev_addr
, 0,
2067 dev_info(&vsi
->back
->pdev
->dev
,
2068 "Could not add filter 0 for %pM\n",
2069 vsi
->netdev
->dev_addr
);
2075 /* Do not assume that I40E_VLAN_ANY should be reset to VLAN 0 */
2076 if (vid
> 0 && !vsi
->info
.pvid
) {
2077 list_for_each_entry(f
, &vsi
->mac_filter_list
, list
) {
2078 if (i40e_find_filter(vsi
, f
->macaddr
, I40E_VLAN_ANY
,
2079 is_vf
, is_netdev
)) {
2080 i40e_del_filter(vsi
, f
->macaddr
, I40E_VLAN_ANY
,
2082 add_f
= i40e_add_filter(vsi
, f
->macaddr
,
2083 0, is_vf
, is_netdev
);
2085 dev_info(&vsi
->back
->pdev
->dev
,
2086 "Could not add filter 0 for %pM\n",
2094 if (test_bit(__I40E_DOWN
, &vsi
->back
->state
) ||
2095 test_bit(__I40E_RESET_RECOVERY_PENDING
, &vsi
->back
->state
))
2098 return i40e_sync_vsi_filters(vsi
);
2102 * i40e_vsi_kill_vlan - Remove vsi membership for given vlan
2103 * @vsi: the vsi being configured
2104 * @vid: vlan id to be removed (0 = untagged only , -1 = any)
2106 * Return: 0 on success or negative otherwise
2108 int i40e_vsi_kill_vlan(struct i40e_vsi
*vsi
, s16 vid
)
2110 struct net_device
*netdev
= vsi
->netdev
;
2111 struct i40e_mac_filter
*f
, *add_f
;
2112 bool is_vf
, is_netdev
;
2113 int filter_count
= 0;
2115 is_vf
= (vsi
->type
== I40E_VSI_SRIOV
);
2116 is_netdev
= !!(netdev
);
2119 i40e_del_filter(vsi
, netdev
->dev_addr
, vid
, is_vf
, is_netdev
);
2121 list_for_each_entry(f
, &vsi
->mac_filter_list
, list
)
2122 i40e_del_filter(vsi
, f
->macaddr
, vid
, is_vf
, is_netdev
);
2124 /* go through all the filters for this VSI and if there is only
2125 * vid == 0 it means there are no other filters, so vid 0 must
2126 * be replaced with -1. This signifies that we should from now
2127 * on accept any traffic (with any tag present, or untagged)
2129 list_for_each_entry(f
, &vsi
->mac_filter_list
, list
) {
2132 ether_addr_equal(netdev
->dev_addr
, f
->macaddr
))
2140 if (!filter_count
&& is_netdev
) {
2141 i40e_del_filter(vsi
, netdev
->dev_addr
, 0, is_vf
, is_netdev
);
2142 f
= i40e_add_filter(vsi
, netdev
->dev_addr
, I40E_VLAN_ANY
,
2145 dev_info(&vsi
->back
->pdev
->dev
,
2146 "Could not add filter %d for %pM\n",
2147 I40E_VLAN_ANY
, netdev
->dev_addr
);
2152 if (!filter_count
) {
2153 list_for_each_entry(f
, &vsi
->mac_filter_list
, list
) {
2154 i40e_del_filter(vsi
, f
->macaddr
, 0, is_vf
, is_netdev
);
2155 add_f
= i40e_add_filter(vsi
, f
->macaddr
, I40E_VLAN_ANY
,
2158 dev_info(&vsi
->back
->pdev
->dev
,
2159 "Could not add filter %d for %pM\n",
2160 I40E_VLAN_ANY
, f
->macaddr
);
2166 if (test_bit(__I40E_DOWN
, &vsi
->back
->state
) ||
2167 test_bit(__I40E_RESET_RECOVERY_PENDING
, &vsi
->back
->state
))
2170 return i40e_sync_vsi_filters(vsi
);
2174 * i40e_vlan_rx_add_vid - Add a vlan id filter to HW offload
2175 * @netdev: network interface to be adjusted
2176 * @vid: vlan id to be added
2178 * net_device_ops implementation for adding vlan ids
2181 int i40e_vlan_rx_add_vid(struct net_device
*netdev
,
2182 __always_unused __be16 proto
, u16 vid
)
2184 static int i40e_vlan_rx_add_vid(struct net_device
*netdev
,
2185 __always_unused __be16 proto
, u16 vid
)
2188 struct i40e_netdev_priv
*np
= netdev_priv(netdev
);
2189 struct i40e_vsi
*vsi
= np
->vsi
;
2195 netdev_info(netdev
, "adding %pM vid=%d\n", netdev
->dev_addr
, vid
);
2197 /* If the network stack called us with vid = 0 then
2198 * it is asking to receive priority tagged packets with
2199 * vlan id 0. Our HW receives them by default when configured
2200 * to receive untagged packets so there is no need to add an
2201 * extra filter for vlan 0 tagged packets.
2204 ret
= i40e_vsi_add_vlan(vsi
, vid
);
2206 if (!ret
&& (vid
< VLAN_N_VID
))
2207 set_bit(vid
, vsi
->active_vlans
);
2213 * i40e_vlan_rx_kill_vid - Remove a vlan id filter from HW offload
2214 * @netdev: network interface to be adjusted
2215 * @vid: vlan id to be removed
2217 * net_device_ops implementation for removing vlan ids
2220 int i40e_vlan_rx_kill_vid(struct net_device
*netdev
,
2221 __always_unused __be16 proto
, u16 vid
)
2223 static int i40e_vlan_rx_kill_vid(struct net_device
*netdev
,
2224 __always_unused __be16 proto
, u16 vid
)
2227 struct i40e_netdev_priv
*np
= netdev_priv(netdev
);
2228 struct i40e_vsi
*vsi
= np
->vsi
;
2230 netdev_info(netdev
, "removing %pM vid=%d\n", netdev
->dev_addr
, vid
);
2232 /* return code is ignored as there is nothing a user
2233 * can do about failure to remove and a log message was
2234 * already printed from the other function
2236 i40e_vsi_kill_vlan(vsi
, vid
);
2238 clear_bit(vid
, vsi
->active_vlans
);
2244 * i40e_restore_vlan - Reinstate vlans when vsi/netdev comes back up
2245 * @vsi: the vsi being brought back up
2247 static void i40e_restore_vlan(struct i40e_vsi
*vsi
)
2254 i40e_vlan_rx_register(vsi
->netdev
, vsi
->netdev
->features
);
2256 for_each_set_bit(vid
, vsi
->active_vlans
, VLAN_N_VID
)
2257 i40e_vlan_rx_add_vid(vsi
->netdev
, htons(ETH_P_8021Q
),
2262 * i40e_vsi_add_pvid - Add pvid for the VSI
2263 * @vsi: the vsi being adjusted
2264 * @vid: the vlan id to set as a PVID
2266 int i40e_vsi_add_pvid(struct i40e_vsi
*vsi
, u16 vid
)
2268 struct i40e_vsi_context ctxt
;
2271 vsi
->info
.valid_sections
= cpu_to_le16(I40E_AQ_VSI_PROP_VLAN_VALID
);
2272 vsi
->info
.pvid
= cpu_to_le16(vid
);
2273 vsi
->info
.port_vlan_flags
= I40E_AQ_VSI_PVLAN_MODE_TAGGED
|
2274 I40E_AQ_VSI_PVLAN_INSERT_PVID
|
2275 I40E_AQ_VSI_PVLAN_EMOD_STR
;
2277 ctxt
.seid
= vsi
->seid
;
2278 memcpy(&ctxt
.info
, &vsi
->info
, sizeof(vsi
->info
));
2279 aq_ret
= i40e_aq_update_vsi_params(&vsi
->back
->hw
, &ctxt
, NULL
);
2281 dev_info(&vsi
->back
->pdev
->dev
,
2282 "%s: update vsi failed, aq_err=%d\n",
2283 __func__
, vsi
->back
->hw
.aq
.asq_last_status
);
2291 * i40e_vsi_remove_pvid - Remove the pvid from the VSI
2292 * @vsi: the vsi being adjusted
2294 * Just use the vlan_rx_register() service to put it back to normal
2296 void i40e_vsi_remove_pvid(struct i40e_vsi
*vsi
)
2298 i40e_vlan_stripping_disable(vsi
);
2304 * i40e_vsi_setup_tx_resources - Allocate VSI Tx queue resources
2305 * @vsi: ptr to the VSI
2307 * If this function returns with an error, then it's possible one or
2308 * more of the rings is populated (while the rest are not). It is the
2309 * callers duty to clean those orphaned rings.
2311 * Return 0 on success, negative on failure
2313 static int i40e_vsi_setup_tx_resources(struct i40e_vsi
*vsi
)
2317 for (i
= 0; i
< vsi
->num_queue_pairs
&& !err
; i
++)
2318 err
= i40e_setup_tx_descriptors(vsi
->tx_rings
[i
]);
2324 * i40e_vsi_free_tx_resources - Free Tx resources for VSI queues
2325 * @vsi: ptr to the VSI
2327 * Free VSI's transmit software resources
2329 static void i40e_vsi_free_tx_resources(struct i40e_vsi
*vsi
)
2336 for (i
= 0; i
< vsi
->num_queue_pairs
; i
++)
2337 if (vsi
->tx_rings
[i
] && vsi
->tx_rings
[i
]->desc
)
2338 i40e_free_tx_resources(vsi
->tx_rings
[i
]);
2342 * i40e_vsi_setup_rx_resources - Allocate VSI queues Rx resources
2343 * @vsi: ptr to the VSI
2345 * If this function returns with an error, then it's possible one or
2346 * more of the rings is populated (while the rest are not). It is the
2347 * callers duty to clean those orphaned rings.
2349 * Return 0 on success, negative on failure
2351 static int i40e_vsi_setup_rx_resources(struct i40e_vsi
*vsi
)
2355 for (i
= 0; i
< vsi
->num_queue_pairs
&& !err
; i
++)
2356 err
= i40e_setup_rx_descriptors(vsi
->rx_rings
[i
]);
2358 i40e_fcoe_setup_ddp_resources(vsi
);
2364 * i40e_vsi_free_rx_resources - Free Rx Resources for VSI queues
2365 * @vsi: ptr to the VSI
2367 * Free all receive software resources
2369 static void i40e_vsi_free_rx_resources(struct i40e_vsi
*vsi
)
2376 for (i
= 0; i
< vsi
->num_queue_pairs
; i
++)
2377 if (vsi
->rx_rings
[i
] && vsi
->rx_rings
[i
]->desc
)
2378 i40e_free_rx_resources(vsi
->rx_rings
[i
]);
2380 i40e_fcoe_free_ddp_resources(vsi
);
2385 * i40e_configure_tx_ring - Configure a transmit ring context and rest
2386 * @ring: The Tx ring to configure
2388 * Configure the Tx descriptor ring in the HMC context.
2390 static int i40e_configure_tx_ring(struct i40e_ring
*ring
)
2392 struct i40e_vsi
*vsi
= ring
->vsi
;
2393 u16 pf_q
= vsi
->base_queue
+ ring
->queue_index
;
2394 struct i40e_hw
*hw
= &vsi
->back
->hw
;
2395 struct i40e_hmc_obj_txq tx_ctx
;
2396 i40e_status err
= 0;
2399 /* some ATR related tx ring init */
2400 if (vsi
->back
->flags
& I40E_FLAG_FD_ATR_ENABLED
) {
2401 ring
->atr_sample_rate
= vsi
->back
->atr_sample_rate
;
2402 ring
->atr_count
= 0;
2404 ring
->atr_sample_rate
= 0;
2407 /* initialize XPS */
2408 if (ring
->q_vector
&& ring
->netdev
&&
2409 vsi
->tc_config
.numtc
<= 1 &&
2410 !test_and_set_bit(__I40E_TX_XPS_INIT_DONE
, &ring
->state
))
2411 netif_set_xps_queue(ring
->netdev
,
2412 &ring
->q_vector
->affinity_mask
,
2415 /* clear the context structure first */
2416 memset(&tx_ctx
, 0, sizeof(tx_ctx
));
2418 tx_ctx
.new_context
= 1;
2419 tx_ctx
.base
= (ring
->dma
/ 128);
2420 tx_ctx
.qlen
= ring
->count
;
2421 tx_ctx
.fd_ena
= !!(vsi
->back
->flags
& (I40E_FLAG_FD_SB_ENABLED
|
2422 I40E_FLAG_FD_ATR_ENABLED
));
2424 tx_ctx
.fc_ena
= (vsi
->type
== I40E_VSI_FCOE
);
2426 tx_ctx
.timesync_ena
= !!(vsi
->back
->flags
& I40E_FLAG_PTP
);
2427 /* FDIR VSI tx ring can still use RS bit and writebacks */
2428 if (vsi
->type
!= I40E_VSI_FDIR
)
2429 tx_ctx
.head_wb_ena
= 1;
2430 tx_ctx
.head_wb_addr
= ring
->dma
+
2431 (ring
->count
* sizeof(struct i40e_tx_desc
));
2433 /* As part of VSI creation/update, FW allocates certain
2434 * Tx arbitration queue sets for each TC enabled for
2435 * the VSI. The FW returns the handles to these queue
2436 * sets as part of the response buffer to Add VSI,
2437 * Update VSI, etc. AQ commands. It is expected that
2438 * these queue set handles be associated with the Tx
2439 * queues by the driver as part of the TX queue context
2440 * initialization. This has to be done regardless of
2441 * DCB as by default everything is mapped to TC0.
2443 tx_ctx
.rdylist
= le16_to_cpu(vsi
->info
.qs_handle
[ring
->dcb_tc
]);
2444 tx_ctx
.rdylist_act
= 0;
2446 /* clear the context in the HMC */
2447 err
= i40e_clear_lan_tx_queue_context(hw
, pf_q
);
2449 dev_info(&vsi
->back
->pdev
->dev
,
2450 "Failed to clear LAN Tx queue context on Tx ring %d (pf_q %d), error: %d\n",
2451 ring
->queue_index
, pf_q
, err
);
2455 /* set the context in the HMC */
2456 err
= i40e_set_lan_tx_queue_context(hw
, pf_q
, &tx_ctx
);
2458 dev_info(&vsi
->back
->pdev
->dev
,
2459 "Failed to set LAN Tx queue context on Tx ring %d (pf_q %d, error: %d\n",
2460 ring
->queue_index
, pf_q
, err
);
2464 /* Now associate this queue with this PCI function */
2465 if (vsi
->type
== I40E_VSI_VMDQ2
)
2466 qtx_ctl
= I40E_QTX_CTL_VM_QUEUE
;
2468 qtx_ctl
= I40E_QTX_CTL_PF_QUEUE
;
2469 qtx_ctl
|= ((hw
->pf_id
<< I40E_QTX_CTL_PF_INDX_SHIFT
) &
2470 I40E_QTX_CTL_PF_INDX_MASK
);
2471 wr32(hw
, I40E_QTX_CTL(pf_q
), qtx_ctl
);
2474 clear_bit(__I40E_HANG_CHECK_ARMED
, &ring
->state
);
2476 /* cache tail off for easier writes later */
2477 ring
->tail
= hw
->hw_addr
+ I40E_QTX_TAIL(pf_q
);
2483 * i40e_configure_rx_ring - Configure a receive ring context
2484 * @ring: The Rx ring to configure
2486 * Configure the Rx descriptor ring in the HMC context.
2488 static int i40e_configure_rx_ring(struct i40e_ring
*ring
)
2490 struct i40e_vsi
*vsi
= ring
->vsi
;
2491 u32 chain_len
= vsi
->back
->hw
.func_caps
.rx_buf_chain_len
;
2492 u16 pf_q
= vsi
->base_queue
+ ring
->queue_index
;
2493 struct i40e_hw
*hw
= &vsi
->back
->hw
;
2494 struct i40e_hmc_obj_rxq rx_ctx
;
2495 i40e_status err
= 0;
2499 /* clear the context structure first */
2500 memset(&rx_ctx
, 0, sizeof(rx_ctx
));
2502 ring
->rx_buf_len
= vsi
->rx_buf_len
;
2503 ring
->rx_hdr_len
= vsi
->rx_hdr_len
;
2505 rx_ctx
.dbuff
= ring
->rx_buf_len
>> I40E_RXQ_CTX_DBUFF_SHIFT
;
2506 rx_ctx
.hbuff
= ring
->rx_hdr_len
>> I40E_RXQ_CTX_HBUFF_SHIFT
;
2508 rx_ctx
.base
= (ring
->dma
/ 128);
2509 rx_ctx
.qlen
= ring
->count
;
2511 if (vsi
->back
->flags
& I40E_FLAG_16BYTE_RX_DESC_ENABLED
) {
2512 set_ring_16byte_desc_enabled(ring
);
2518 rx_ctx
.dtype
= vsi
->dtype
;
2520 set_ring_ps_enabled(ring
);
2521 rx_ctx
.hsplit_0
= I40E_RX_SPLIT_L2
|
2523 I40E_RX_SPLIT_TCP_UDP
|
2526 rx_ctx
.hsplit_0
= 0;
2529 rx_ctx
.rxmax
= min_t(u16
, vsi
->max_frame
,
2530 (chain_len
* ring
->rx_buf_len
));
2531 if (hw
->revision_id
== 0)
2532 rx_ctx
.lrxqthresh
= 0;
2534 rx_ctx
.lrxqthresh
= 2;
2535 rx_ctx
.crcstrip
= 1;
2539 rx_ctx
.fc_ena
= (vsi
->type
== I40E_VSI_FCOE
);
2541 /* set the prefena field to 1 because the manual says to */
2544 /* clear the context in the HMC */
2545 err
= i40e_clear_lan_rx_queue_context(hw
, pf_q
);
2547 dev_info(&vsi
->back
->pdev
->dev
,
2548 "Failed to clear LAN Rx queue context on Rx ring %d (pf_q %d), error: %d\n",
2549 ring
->queue_index
, pf_q
, err
);
2553 /* set the context in the HMC */
2554 err
= i40e_set_lan_rx_queue_context(hw
, pf_q
, &rx_ctx
);
2556 dev_info(&vsi
->back
->pdev
->dev
,
2557 "Failed to set LAN Rx queue context on Rx ring %d (pf_q %d), error: %d\n",
2558 ring
->queue_index
, pf_q
, err
);
2562 /* cache tail for quicker writes, and clear the reg before use */
2563 ring
->tail
= hw
->hw_addr
+ I40E_QRX_TAIL(pf_q
);
2564 writel(0, ring
->tail
);
2566 i40e_alloc_rx_buffers(ring
, I40E_DESC_UNUSED(ring
));
2572 * i40e_vsi_configure_tx - Configure the VSI for Tx
2573 * @vsi: VSI structure describing this set of rings and resources
2575 * Configure the Tx VSI for operation.
2577 static int i40e_vsi_configure_tx(struct i40e_vsi
*vsi
)
2582 for (i
= 0; (i
< vsi
->num_queue_pairs
) && !err
; i
++)
2583 err
= i40e_configure_tx_ring(vsi
->tx_rings
[i
]);
2589 * i40e_vsi_configure_rx - Configure the VSI for Rx
2590 * @vsi: the VSI being configured
2592 * Configure the Rx VSI for operation.
2594 static int i40e_vsi_configure_rx(struct i40e_vsi
*vsi
)
2599 if (vsi
->netdev
&& (vsi
->netdev
->mtu
> ETH_DATA_LEN
))
2600 vsi
->max_frame
= vsi
->netdev
->mtu
+ ETH_HLEN
2601 + ETH_FCS_LEN
+ VLAN_HLEN
;
2603 vsi
->max_frame
= I40E_RXBUFFER_2048
;
2605 /* figure out correct receive buffer length */
2606 switch (vsi
->back
->flags
& (I40E_FLAG_RX_1BUF_ENABLED
|
2607 I40E_FLAG_RX_PS_ENABLED
)) {
2608 case I40E_FLAG_RX_1BUF_ENABLED
:
2609 vsi
->rx_hdr_len
= 0;
2610 vsi
->rx_buf_len
= vsi
->max_frame
;
2611 vsi
->dtype
= I40E_RX_DTYPE_NO_SPLIT
;
2613 case I40E_FLAG_RX_PS_ENABLED
:
2614 vsi
->rx_hdr_len
= I40E_RX_HDR_SIZE
;
2615 vsi
->rx_buf_len
= I40E_RXBUFFER_2048
;
2616 vsi
->dtype
= I40E_RX_DTYPE_HEADER_SPLIT
;
2619 vsi
->rx_hdr_len
= I40E_RX_HDR_SIZE
;
2620 vsi
->rx_buf_len
= I40E_RXBUFFER_2048
;
2621 vsi
->dtype
= I40E_RX_DTYPE_SPLIT_ALWAYS
;
2626 /* setup rx buffer for FCoE */
2627 if ((vsi
->type
== I40E_VSI_FCOE
) &&
2628 (vsi
->back
->flags
& I40E_FLAG_FCOE_ENABLED
)) {
2629 vsi
->rx_hdr_len
= 0;
2630 vsi
->rx_buf_len
= I40E_RXBUFFER_3072
;
2631 vsi
->max_frame
= I40E_RXBUFFER_3072
;
2632 vsi
->dtype
= I40E_RX_DTYPE_NO_SPLIT
;
2635 #endif /* I40E_FCOE */
2636 /* round up for the chip's needs */
2637 vsi
->rx_hdr_len
= ALIGN(vsi
->rx_hdr_len
,
2638 (1 << I40E_RXQ_CTX_HBUFF_SHIFT
));
2639 vsi
->rx_buf_len
= ALIGN(vsi
->rx_buf_len
,
2640 (1 << I40E_RXQ_CTX_DBUFF_SHIFT
));
2642 /* set up individual rings */
2643 for (i
= 0; i
< vsi
->num_queue_pairs
&& !err
; i
++)
2644 err
= i40e_configure_rx_ring(vsi
->rx_rings
[i
]);
2650 * i40e_vsi_config_dcb_rings - Update rings to reflect DCB TC
2651 * @vsi: ptr to the VSI
2653 static void i40e_vsi_config_dcb_rings(struct i40e_vsi
*vsi
)
2655 struct i40e_ring
*tx_ring
, *rx_ring
;
2656 u16 qoffset
, qcount
;
2659 if (!(vsi
->back
->flags
& I40E_FLAG_DCB_ENABLED
))
2662 for (n
= 0; n
< I40E_MAX_TRAFFIC_CLASS
; n
++) {
2663 if (!(vsi
->tc_config
.enabled_tc
& (1 << n
)))
2666 qoffset
= vsi
->tc_config
.tc_info
[n
].qoffset
;
2667 qcount
= vsi
->tc_config
.tc_info
[n
].qcount
;
2668 for (i
= qoffset
; i
< (qoffset
+ qcount
); i
++) {
2669 rx_ring
= vsi
->rx_rings
[i
];
2670 tx_ring
= vsi
->tx_rings
[i
];
2671 rx_ring
->dcb_tc
= n
;
2672 tx_ring
->dcb_tc
= n
;
2678 * i40e_set_vsi_rx_mode - Call set_rx_mode on a VSI
2679 * @vsi: ptr to the VSI
2681 static void i40e_set_vsi_rx_mode(struct i40e_vsi
*vsi
)
2684 i40e_set_rx_mode(vsi
->netdev
);
2688 * i40e_fdir_filter_restore - Restore the Sideband Flow Director filters
2689 * @vsi: Pointer to the targeted VSI
2691 * This function replays the hlist on the hw where all the SB Flow Director
2692 * filters were saved.
2694 static void i40e_fdir_filter_restore(struct i40e_vsi
*vsi
)
2696 struct i40e_fdir_filter
*filter
;
2697 struct i40e_pf
*pf
= vsi
->back
;
2698 struct hlist_node
*node
;
2700 if (!(pf
->flags
& I40E_FLAG_FD_SB_ENABLED
))
2703 hlist_for_each_entry_safe(filter
, node
,
2704 &pf
->fdir_filter_list
, fdir_node
) {
2705 i40e_add_del_fdir(vsi
, filter
, true);
2710 * i40e_vsi_configure - Set up the VSI for action
2711 * @vsi: the VSI being configured
2713 static int i40e_vsi_configure(struct i40e_vsi
*vsi
)
2717 i40e_set_vsi_rx_mode(vsi
);
2718 i40e_restore_vlan(vsi
);
2719 i40e_vsi_config_dcb_rings(vsi
);
2720 err
= i40e_vsi_configure_tx(vsi
);
2722 err
= i40e_vsi_configure_rx(vsi
);
2728 * i40e_vsi_configure_msix - MSIX mode Interrupt Config in the HW
2729 * @vsi: the VSI being configured
2731 static void i40e_vsi_configure_msix(struct i40e_vsi
*vsi
)
2733 struct i40e_pf
*pf
= vsi
->back
;
2734 struct i40e_q_vector
*q_vector
;
2735 struct i40e_hw
*hw
= &pf
->hw
;
2741 /* The interrupt indexing is offset by 1 in the PFINT_ITRn
2742 * and PFINT_LNKLSTn registers, e.g.:
2743 * PFINT_ITRn[0..n-1] gets msix-1..msix-n (qpair interrupts)
2745 qp
= vsi
->base_queue
;
2746 vector
= vsi
->base_vector
;
2747 for (i
= 0; i
< vsi
->num_q_vectors
; i
++, vector
++) {
2748 q_vector
= vsi
->q_vectors
[i
];
2749 q_vector
->rx
.itr
= ITR_TO_REG(vsi
->rx_itr_setting
);
2750 q_vector
->rx
.latency_range
= I40E_LOW_LATENCY
;
2751 wr32(hw
, I40E_PFINT_ITRN(I40E_RX_ITR
, vector
- 1),
2753 q_vector
->tx
.itr
= ITR_TO_REG(vsi
->tx_itr_setting
);
2754 q_vector
->tx
.latency_range
= I40E_LOW_LATENCY
;
2755 wr32(hw
, I40E_PFINT_ITRN(I40E_TX_ITR
, vector
- 1),
2758 /* Linked list for the queuepairs assigned to this vector */
2759 wr32(hw
, I40E_PFINT_LNKLSTN(vector
- 1), qp
);
2760 for (q
= 0; q
< q_vector
->num_ringpairs
; q
++) {
2761 val
= I40E_QINT_RQCTL_CAUSE_ENA_MASK
|
2762 (I40E_RX_ITR
<< I40E_QINT_RQCTL_ITR_INDX_SHIFT
) |
2763 (vector
<< I40E_QINT_RQCTL_MSIX_INDX_SHIFT
) |
2764 (qp
<< I40E_QINT_RQCTL_NEXTQ_INDX_SHIFT
)|
2766 << I40E_QINT_RQCTL_NEXTQ_TYPE_SHIFT
);
2768 wr32(hw
, I40E_QINT_RQCTL(qp
), val
);
2770 val
= I40E_QINT_TQCTL_CAUSE_ENA_MASK
|
2771 (I40E_TX_ITR
<< I40E_QINT_TQCTL_ITR_INDX_SHIFT
) |
2772 (vector
<< I40E_QINT_TQCTL_MSIX_INDX_SHIFT
) |
2773 ((qp
+1) << I40E_QINT_TQCTL_NEXTQ_INDX_SHIFT
)|
2775 << I40E_QINT_TQCTL_NEXTQ_TYPE_SHIFT
);
2777 /* Terminate the linked list */
2778 if (q
== (q_vector
->num_ringpairs
- 1))
2779 val
|= (I40E_QUEUE_END_OF_LIST
2780 << I40E_QINT_TQCTL_NEXTQ_INDX_SHIFT
);
2782 wr32(hw
, I40E_QINT_TQCTL(qp
), val
);
2791 * i40e_enable_misc_int_causes - enable the non-queue interrupts
2792 * @hw: ptr to the hardware info
2794 static void i40e_enable_misc_int_causes(struct i40e_hw
*hw
)
2798 /* clear things first */
2799 wr32(hw
, I40E_PFINT_ICR0_ENA
, 0); /* disable all */
2800 rd32(hw
, I40E_PFINT_ICR0
); /* read to clear */
2802 val
= I40E_PFINT_ICR0_ENA_ECC_ERR_MASK
|
2803 I40E_PFINT_ICR0_ENA_MAL_DETECT_MASK
|
2804 I40E_PFINT_ICR0_ENA_GRST_MASK
|
2805 I40E_PFINT_ICR0_ENA_PCI_EXCEPTION_MASK
|
2806 I40E_PFINT_ICR0_ENA_GPIO_MASK
|
2807 I40E_PFINT_ICR0_ENA_TIMESYNC_MASK
|
2808 I40E_PFINT_ICR0_ENA_HMC_ERR_MASK
|
2809 I40E_PFINT_ICR0_ENA_VFLR_MASK
|
2810 I40E_PFINT_ICR0_ENA_ADMINQ_MASK
;
2812 wr32(hw
, I40E_PFINT_ICR0_ENA
, val
);
2814 /* SW_ITR_IDX = 0, but don't change INTENA */
2815 wr32(hw
, I40E_PFINT_DYN_CTL0
, I40E_PFINT_DYN_CTL0_SW_ITR_INDX_MASK
|
2816 I40E_PFINT_DYN_CTL0_INTENA_MSK_MASK
);
2818 /* OTHER_ITR_IDX = 0 */
2819 wr32(hw
, I40E_PFINT_STAT_CTL0
, 0);
2823 * i40e_configure_msi_and_legacy - Legacy mode interrupt config in the HW
2824 * @vsi: the VSI being configured
2826 static void i40e_configure_msi_and_legacy(struct i40e_vsi
*vsi
)
2828 struct i40e_q_vector
*q_vector
= vsi
->q_vectors
[0];
2829 struct i40e_pf
*pf
= vsi
->back
;
2830 struct i40e_hw
*hw
= &pf
->hw
;
2833 /* set the ITR configuration */
2834 q_vector
->rx
.itr
= ITR_TO_REG(vsi
->rx_itr_setting
);
2835 q_vector
->rx
.latency_range
= I40E_LOW_LATENCY
;
2836 wr32(hw
, I40E_PFINT_ITR0(I40E_RX_ITR
), q_vector
->rx
.itr
);
2837 q_vector
->tx
.itr
= ITR_TO_REG(vsi
->tx_itr_setting
);
2838 q_vector
->tx
.latency_range
= I40E_LOW_LATENCY
;
2839 wr32(hw
, I40E_PFINT_ITR0(I40E_TX_ITR
), q_vector
->tx
.itr
);
2841 i40e_enable_misc_int_causes(hw
);
2843 /* FIRSTQ_INDX = 0, FIRSTQ_TYPE = 0 (rx) */
2844 wr32(hw
, I40E_PFINT_LNKLST0
, 0);
2846 /* Associate the queue pair to the vector and enable the queue int */
2847 val
= I40E_QINT_RQCTL_CAUSE_ENA_MASK
|
2848 (I40E_RX_ITR
<< I40E_QINT_RQCTL_ITR_INDX_SHIFT
) |
2849 (I40E_QUEUE_TYPE_TX
<< I40E_QINT_TQCTL_NEXTQ_TYPE_SHIFT
);
2851 wr32(hw
, I40E_QINT_RQCTL(0), val
);
2853 val
= I40E_QINT_TQCTL_CAUSE_ENA_MASK
|
2854 (I40E_TX_ITR
<< I40E_QINT_TQCTL_ITR_INDX_SHIFT
) |
2855 (I40E_QUEUE_END_OF_LIST
<< I40E_QINT_TQCTL_NEXTQ_INDX_SHIFT
);
2857 wr32(hw
, I40E_QINT_TQCTL(0), val
);
2862 * i40e_irq_dynamic_disable_icr0 - Disable default interrupt generation for icr0
2863 * @pf: board private structure
2865 void i40e_irq_dynamic_disable_icr0(struct i40e_pf
*pf
)
2867 struct i40e_hw
*hw
= &pf
->hw
;
2869 wr32(hw
, I40E_PFINT_DYN_CTL0
,
2870 I40E_ITR_NONE
<< I40E_PFINT_DYN_CTLN_ITR_INDX_SHIFT
);
2875 * i40e_irq_dynamic_enable_icr0 - Enable default interrupt generation for icr0
2876 * @pf: board private structure
2878 void i40e_irq_dynamic_enable_icr0(struct i40e_pf
*pf
)
2880 struct i40e_hw
*hw
= &pf
->hw
;
2883 val
= I40E_PFINT_DYN_CTL0_INTENA_MASK
|
2884 I40E_PFINT_DYN_CTL0_CLEARPBA_MASK
|
2885 (I40E_ITR_NONE
<< I40E_PFINT_DYN_CTL0_ITR_INDX_SHIFT
);
2887 wr32(hw
, I40E_PFINT_DYN_CTL0
, val
);
2892 * i40e_irq_dynamic_enable - Enable default interrupt generation settings
2893 * @vsi: pointer to a vsi
2894 * @vector: enable a particular Hw Interrupt vector
2896 void i40e_irq_dynamic_enable(struct i40e_vsi
*vsi
, int vector
)
2898 struct i40e_pf
*pf
= vsi
->back
;
2899 struct i40e_hw
*hw
= &pf
->hw
;
2902 val
= I40E_PFINT_DYN_CTLN_INTENA_MASK
|
2903 I40E_PFINT_DYN_CTLN_CLEARPBA_MASK
|
2904 (I40E_ITR_NONE
<< I40E_PFINT_DYN_CTLN_ITR_INDX_SHIFT
);
2905 wr32(hw
, I40E_PFINT_DYN_CTLN(vector
- 1), val
);
2906 /* skip the flush */
2910 * i40e_irq_dynamic_disable - Disable default interrupt generation settings
2911 * @vsi: pointer to a vsi
2912 * @vector: enable a particular Hw Interrupt vector
2914 void i40e_irq_dynamic_disable(struct i40e_vsi
*vsi
, int vector
)
2916 struct i40e_pf
*pf
= vsi
->back
;
2917 struct i40e_hw
*hw
= &pf
->hw
;
2920 val
= I40E_ITR_NONE
<< I40E_PFINT_DYN_CTLN_ITR_INDX_SHIFT
;
2921 wr32(hw
, I40E_PFINT_DYN_CTLN(vector
- 1), val
);
2926 * i40e_msix_clean_rings - MSIX mode Interrupt Handler
2927 * @irq: interrupt number
2928 * @data: pointer to a q_vector
2930 static irqreturn_t
i40e_msix_clean_rings(int irq
, void *data
)
2932 struct i40e_q_vector
*q_vector
= data
;
2934 if (!q_vector
->tx
.ring
&& !q_vector
->rx
.ring
)
2937 napi_schedule(&q_vector
->napi
);
2943 * i40e_vsi_request_irq_msix - Initialize MSI-X interrupts
2944 * @vsi: the VSI being configured
2945 * @basename: name for the vector
2947 * Allocates MSI-X vectors and requests interrupts from the kernel.
2949 static int i40e_vsi_request_irq_msix(struct i40e_vsi
*vsi
, char *basename
)
2951 int q_vectors
= vsi
->num_q_vectors
;
2952 struct i40e_pf
*pf
= vsi
->back
;
2953 int base
= vsi
->base_vector
;
2958 for (vector
= 0; vector
< q_vectors
; vector
++) {
2959 struct i40e_q_vector
*q_vector
= vsi
->q_vectors
[vector
];
2961 if (q_vector
->tx
.ring
&& q_vector
->rx
.ring
) {
2962 snprintf(q_vector
->name
, sizeof(q_vector
->name
) - 1,
2963 "%s-%s-%d", basename
, "TxRx", rx_int_idx
++);
2965 } else if (q_vector
->rx
.ring
) {
2966 snprintf(q_vector
->name
, sizeof(q_vector
->name
) - 1,
2967 "%s-%s-%d", basename
, "rx", rx_int_idx
++);
2968 } else if (q_vector
->tx
.ring
) {
2969 snprintf(q_vector
->name
, sizeof(q_vector
->name
) - 1,
2970 "%s-%s-%d", basename
, "tx", tx_int_idx
++);
2972 /* skip this unused q_vector */
2975 err
= request_irq(pf
->msix_entries
[base
+ vector
].vector
,
2981 dev_info(&pf
->pdev
->dev
,
2982 "%s: request_irq failed, error: %d\n",
2984 goto free_queue_irqs
;
2986 /* assign the mask for this irq */
2987 irq_set_affinity_hint(pf
->msix_entries
[base
+ vector
].vector
,
2988 &q_vector
->affinity_mask
);
2991 vsi
->irqs_ready
= true;
2997 irq_set_affinity_hint(pf
->msix_entries
[base
+ vector
].vector
,
2999 free_irq(pf
->msix_entries
[base
+ vector
].vector
,
3000 &(vsi
->q_vectors
[vector
]));
3006 * i40e_vsi_disable_irq - Mask off queue interrupt generation on the VSI
3007 * @vsi: the VSI being un-configured
3009 static void i40e_vsi_disable_irq(struct i40e_vsi
*vsi
)
3011 struct i40e_pf
*pf
= vsi
->back
;
3012 struct i40e_hw
*hw
= &pf
->hw
;
3013 int base
= vsi
->base_vector
;
3016 for (i
= 0; i
< vsi
->num_queue_pairs
; i
++) {
3017 wr32(hw
, I40E_QINT_TQCTL(vsi
->tx_rings
[i
]->reg_idx
), 0);
3018 wr32(hw
, I40E_QINT_RQCTL(vsi
->rx_rings
[i
]->reg_idx
), 0);
3021 if (pf
->flags
& I40E_FLAG_MSIX_ENABLED
) {
3022 for (i
= vsi
->base_vector
;
3023 i
< (vsi
->num_q_vectors
+ vsi
->base_vector
); i
++)
3024 wr32(hw
, I40E_PFINT_DYN_CTLN(i
- 1), 0);
3027 for (i
= 0; i
< vsi
->num_q_vectors
; i
++)
3028 synchronize_irq(pf
->msix_entries
[i
+ base
].vector
);
3030 /* Legacy and MSI mode - this stops all interrupt handling */
3031 wr32(hw
, I40E_PFINT_ICR0_ENA
, 0);
3032 wr32(hw
, I40E_PFINT_DYN_CTL0
, 0);
3034 synchronize_irq(pf
->pdev
->irq
);
3039 * i40e_vsi_enable_irq - Enable IRQ for the given VSI
3040 * @vsi: the VSI being configured
3042 static int i40e_vsi_enable_irq(struct i40e_vsi
*vsi
)
3044 struct i40e_pf
*pf
= vsi
->back
;
3047 if (pf
->flags
& I40E_FLAG_MSIX_ENABLED
) {
3048 for (i
= vsi
->base_vector
;
3049 i
< (vsi
->num_q_vectors
+ vsi
->base_vector
); i
++)
3050 i40e_irq_dynamic_enable(vsi
, i
);
3052 i40e_irq_dynamic_enable_icr0(pf
);
3055 i40e_flush(&pf
->hw
);
3060 * i40e_stop_misc_vector - Stop the vector that handles non-queue events
3061 * @pf: board private structure
3063 static void i40e_stop_misc_vector(struct i40e_pf
*pf
)
3066 wr32(&pf
->hw
, I40E_PFINT_ICR0_ENA
, 0);
3067 i40e_flush(&pf
->hw
);
3071 * i40e_intr - MSI/Legacy and non-queue interrupt handler
3072 * @irq: interrupt number
3073 * @data: pointer to a q_vector
3075 * This is the handler used for all MSI/Legacy interrupts, and deals
3076 * with both queue and non-queue interrupts. This is also used in
3077 * MSIX mode to handle the non-queue interrupts.
3079 static irqreturn_t
i40e_intr(int irq
, void *data
)
3081 struct i40e_pf
*pf
= (struct i40e_pf
*)data
;
3082 struct i40e_hw
*hw
= &pf
->hw
;
3083 irqreturn_t ret
= IRQ_NONE
;
3084 u32 icr0
, icr0_remaining
;
3087 icr0
= rd32(hw
, I40E_PFINT_ICR0
);
3088 ena_mask
= rd32(hw
, I40E_PFINT_ICR0_ENA
);
3090 /* if sharing a legacy IRQ, we might get called w/o an intr pending */
3091 if ((icr0
& I40E_PFINT_ICR0_INTEVENT_MASK
) == 0)
3094 /* if interrupt but no bits showing, must be SWINT */
3095 if (((icr0
& ~I40E_PFINT_ICR0_INTEVENT_MASK
) == 0) ||
3096 (icr0
& I40E_PFINT_ICR0_SWINT_MASK
))
3099 /* only q0 is used in MSI/Legacy mode, and none are used in MSIX */
3100 if (icr0
& I40E_PFINT_ICR0_QUEUE_0_MASK
) {
3102 /* temporarily disable queue cause for NAPI processing */
3103 u32 qval
= rd32(hw
, I40E_QINT_RQCTL(0));
3104 qval
&= ~I40E_QINT_RQCTL_CAUSE_ENA_MASK
;
3105 wr32(hw
, I40E_QINT_RQCTL(0), qval
);
3107 qval
= rd32(hw
, I40E_QINT_TQCTL(0));
3108 qval
&= ~I40E_QINT_TQCTL_CAUSE_ENA_MASK
;
3109 wr32(hw
, I40E_QINT_TQCTL(0), qval
);
3111 if (!test_bit(__I40E_DOWN
, &pf
->state
))
3112 napi_schedule(&pf
->vsi
[pf
->lan_vsi
]->q_vectors
[0]->napi
);
3115 if (icr0
& I40E_PFINT_ICR0_ADMINQ_MASK
) {
3116 ena_mask
&= ~I40E_PFINT_ICR0_ENA_ADMINQ_MASK
;
3117 set_bit(__I40E_ADMINQ_EVENT_PENDING
, &pf
->state
);
3120 if (icr0
& I40E_PFINT_ICR0_MAL_DETECT_MASK
) {
3121 ena_mask
&= ~I40E_PFINT_ICR0_ENA_MAL_DETECT_MASK
;
3122 set_bit(__I40E_MDD_EVENT_PENDING
, &pf
->state
);
3125 if (icr0
& I40E_PFINT_ICR0_VFLR_MASK
) {
3126 ena_mask
&= ~I40E_PFINT_ICR0_ENA_VFLR_MASK
;
3127 set_bit(__I40E_VFLR_EVENT_PENDING
, &pf
->state
);
3130 if (icr0
& I40E_PFINT_ICR0_GRST_MASK
) {
3131 if (!test_bit(__I40E_RESET_RECOVERY_PENDING
, &pf
->state
))
3132 set_bit(__I40E_RESET_INTR_RECEIVED
, &pf
->state
);
3133 ena_mask
&= ~I40E_PFINT_ICR0_ENA_GRST_MASK
;
3134 val
= rd32(hw
, I40E_GLGEN_RSTAT
);
3135 val
= (val
& I40E_GLGEN_RSTAT_RESET_TYPE_MASK
)
3136 >> I40E_GLGEN_RSTAT_RESET_TYPE_SHIFT
;
3137 if (val
== I40E_RESET_CORER
) {
3139 } else if (val
== I40E_RESET_GLOBR
) {
3141 } else if (val
== I40E_RESET_EMPR
) {
3143 set_bit(__I40E_EMP_RESET_REQUESTED
, &pf
->state
);
3147 if (icr0
& I40E_PFINT_ICR0_HMC_ERR_MASK
) {
3148 icr0
&= ~I40E_PFINT_ICR0_HMC_ERR_MASK
;
3149 dev_info(&pf
->pdev
->dev
, "HMC error interrupt\n");
3152 if (icr0
& I40E_PFINT_ICR0_TIMESYNC_MASK
) {
3153 u32 prttsyn_stat
= rd32(hw
, I40E_PRTTSYN_STAT_0
);
3155 if (prttsyn_stat
& I40E_PRTTSYN_STAT_0_TXTIME_MASK
) {
3156 icr0
&= ~I40E_PFINT_ICR0_ENA_TIMESYNC_MASK
;
3157 i40e_ptp_tx_hwtstamp(pf
);
3161 /* If a critical error is pending we have no choice but to reset the
3163 * Report and mask out any remaining unexpected interrupts.
3165 icr0_remaining
= icr0
& ena_mask
;
3166 if (icr0_remaining
) {
3167 dev_info(&pf
->pdev
->dev
, "unhandled interrupt icr0=0x%08x\n",
3169 if ((icr0_remaining
& I40E_PFINT_ICR0_PE_CRITERR_MASK
) ||
3170 (icr0_remaining
& I40E_PFINT_ICR0_PCI_EXCEPTION_MASK
) ||
3171 (icr0_remaining
& I40E_PFINT_ICR0_ECC_ERR_MASK
)) {
3172 dev_info(&pf
->pdev
->dev
, "device will be reset\n");
3173 set_bit(__I40E_PF_RESET_REQUESTED
, &pf
->state
);
3174 i40e_service_event_schedule(pf
);
3176 ena_mask
&= ~icr0_remaining
;
3181 /* re-enable interrupt causes */
3182 wr32(hw
, I40E_PFINT_ICR0_ENA
, ena_mask
);
3183 if (!test_bit(__I40E_DOWN
, &pf
->state
)) {
3184 i40e_service_event_schedule(pf
);
3185 i40e_irq_dynamic_enable_icr0(pf
);
3192 * i40e_clean_fdir_tx_irq - Reclaim resources after transmit completes
3193 * @tx_ring: tx ring to clean
3194 * @budget: how many cleans we're allowed
3196 * Returns true if there's any budget left (e.g. the clean is finished)
3198 static bool i40e_clean_fdir_tx_irq(struct i40e_ring
*tx_ring
, int budget
)
3200 struct i40e_vsi
*vsi
= tx_ring
->vsi
;
3201 u16 i
= tx_ring
->next_to_clean
;
3202 struct i40e_tx_buffer
*tx_buf
;
3203 struct i40e_tx_desc
*tx_desc
;
3205 tx_buf
= &tx_ring
->tx_bi
[i
];
3206 tx_desc
= I40E_TX_DESC(tx_ring
, i
);
3207 i
-= tx_ring
->count
;
3210 struct i40e_tx_desc
*eop_desc
= tx_buf
->next_to_watch
;
3212 /* if next_to_watch is not set then there is no work pending */
3216 /* prevent any other reads prior to eop_desc */
3217 read_barrier_depends();
3219 /* if the descriptor isn't done, no work yet to do */
3220 if (!(eop_desc
->cmd_type_offset_bsz
&
3221 cpu_to_le64(I40E_TX_DESC_DTYPE_DESC_DONE
)))
3224 /* clear next_to_watch to prevent false hangs */
3225 tx_buf
->next_to_watch
= NULL
;
3227 tx_desc
->buffer_addr
= 0;
3228 tx_desc
->cmd_type_offset_bsz
= 0;
3229 /* move past filter desc */
3234 i
-= tx_ring
->count
;
3235 tx_buf
= tx_ring
->tx_bi
;
3236 tx_desc
= I40E_TX_DESC(tx_ring
, 0);
3238 /* unmap skb header data */
3239 dma_unmap_single(tx_ring
->dev
,
3240 dma_unmap_addr(tx_buf
, dma
),
3241 dma_unmap_len(tx_buf
, len
),
3243 if (tx_buf
->tx_flags
& I40E_TX_FLAGS_FD_SB
)
3244 kfree(tx_buf
->raw_buf
);
3246 tx_buf
->raw_buf
= NULL
;
3247 tx_buf
->tx_flags
= 0;
3248 tx_buf
->next_to_watch
= NULL
;
3249 dma_unmap_len_set(tx_buf
, len
, 0);
3250 tx_desc
->buffer_addr
= 0;
3251 tx_desc
->cmd_type_offset_bsz
= 0;
3253 /* move us past the eop_desc for start of next FD desc */
3258 i
-= tx_ring
->count
;
3259 tx_buf
= tx_ring
->tx_bi
;
3260 tx_desc
= I40E_TX_DESC(tx_ring
, 0);
3263 /* update budget accounting */
3265 } while (likely(budget
));
3267 i
+= tx_ring
->count
;
3268 tx_ring
->next_to_clean
= i
;
3270 if (vsi
->back
->flags
& I40E_FLAG_MSIX_ENABLED
) {
3271 i40e_irq_dynamic_enable(vsi
,
3272 tx_ring
->q_vector
->v_idx
+ vsi
->base_vector
);
3278 * i40e_fdir_clean_ring - Interrupt Handler for FDIR SB ring
3279 * @irq: interrupt number
3280 * @data: pointer to a q_vector
3282 static irqreturn_t
i40e_fdir_clean_ring(int irq
, void *data
)
3284 struct i40e_q_vector
*q_vector
= data
;
3285 struct i40e_vsi
*vsi
;
3287 if (!q_vector
->tx
.ring
)
3290 vsi
= q_vector
->tx
.ring
->vsi
;
3291 i40e_clean_fdir_tx_irq(q_vector
->tx
.ring
, vsi
->work_limit
);
3297 * i40e_map_vector_to_qp - Assigns the queue pair to the vector
3298 * @vsi: the VSI being configured
3299 * @v_idx: vector index
3300 * @qp_idx: queue pair index
3302 static void map_vector_to_qp(struct i40e_vsi
*vsi
, int v_idx
, int qp_idx
)
3304 struct i40e_q_vector
*q_vector
= vsi
->q_vectors
[v_idx
];
3305 struct i40e_ring
*tx_ring
= vsi
->tx_rings
[qp_idx
];
3306 struct i40e_ring
*rx_ring
= vsi
->rx_rings
[qp_idx
];
3308 tx_ring
->q_vector
= q_vector
;
3309 tx_ring
->next
= q_vector
->tx
.ring
;
3310 q_vector
->tx
.ring
= tx_ring
;
3311 q_vector
->tx
.count
++;
3313 rx_ring
->q_vector
= q_vector
;
3314 rx_ring
->next
= q_vector
->rx
.ring
;
3315 q_vector
->rx
.ring
= rx_ring
;
3316 q_vector
->rx
.count
++;
3320 * i40e_vsi_map_rings_to_vectors - Maps descriptor rings to vectors
3321 * @vsi: the VSI being configured
3323 * This function maps descriptor rings to the queue-specific vectors
3324 * we were allotted through the MSI-X enabling code. Ideally, we'd have
3325 * one vector per queue pair, but on a constrained vector budget, we
3326 * group the queue pairs as "efficiently" as possible.
3328 static void i40e_vsi_map_rings_to_vectors(struct i40e_vsi
*vsi
)
3330 int qp_remaining
= vsi
->num_queue_pairs
;
3331 int q_vectors
= vsi
->num_q_vectors
;
3336 /* If we don't have enough vectors for a 1-to-1 mapping, we'll have to
3337 * group them so there are multiple queues per vector.
3338 * It is also important to go through all the vectors available to be
3339 * sure that if we don't use all the vectors, that the remaining vectors
3340 * are cleared. This is especially important when decreasing the
3341 * number of queues in use.
3343 for (; v_start
< q_vectors
; v_start
++) {
3344 struct i40e_q_vector
*q_vector
= vsi
->q_vectors
[v_start
];
3346 num_ringpairs
= DIV_ROUND_UP(qp_remaining
, q_vectors
- v_start
);
3348 q_vector
->num_ringpairs
= num_ringpairs
;
3350 q_vector
->rx
.count
= 0;
3351 q_vector
->tx
.count
= 0;
3352 q_vector
->rx
.ring
= NULL
;
3353 q_vector
->tx
.ring
= NULL
;
3355 while (num_ringpairs
--) {
3356 map_vector_to_qp(vsi
, v_start
, qp_idx
);
3364 * i40e_vsi_request_irq - Request IRQ from the OS
3365 * @vsi: the VSI being configured
3366 * @basename: name for the vector
3368 static int i40e_vsi_request_irq(struct i40e_vsi
*vsi
, char *basename
)
3370 struct i40e_pf
*pf
= vsi
->back
;
3373 if (pf
->flags
& I40E_FLAG_MSIX_ENABLED
)
3374 err
= i40e_vsi_request_irq_msix(vsi
, basename
);
3375 else if (pf
->flags
& I40E_FLAG_MSI_ENABLED
)
3376 err
= request_irq(pf
->pdev
->irq
, i40e_intr
, 0,
3377 pf
->misc_int_name
, pf
);
3379 err
= request_irq(pf
->pdev
->irq
, i40e_intr
, IRQF_SHARED
,
3380 pf
->misc_int_name
, pf
);
3383 dev_info(&pf
->pdev
->dev
, "request_irq failed, Error %d\n", err
);
3388 #ifdef CONFIG_NET_POLL_CONTROLLER
3390 * i40e_netpoll - A Polling 'interrupt'handler
3391 * @netdev: network interface device structure
3393 * This is used by netconsole to send skbs without having to re-enable
3394 * interrupts. It's not called while the normal interrupt routine is executing.
3397 void i40e_netpoll(struct net_device
*netdev
)
3399 static void i40e_netpoll(struct net_device
*netdev
)
3402 struct i40e_netdev_priv
*np
= netdev_priv(netdev
);
3403 struct i40e_vsi
*vsi
= np
->vsi
;
3404 struct i40e_pf
*pf
= vsi
->back
;
3407 /* if interface is down do nothing */
3408 if (test_bit(__I40E_DOWN
, &vsi
->state
))
3411 pf
->flags
|= I40E_FLAG_IN_NETPOLL
;
3412 if (pf
->flags
& I40E_FLAG_MSIX_ENABLED
) {
3413 for (i
= 0; i
< vsi
->num_q_vectors
; i
++)
3414 i40e_msix_clean_rings(0, vsi
->q_vectors
[i
]);
3416 i40e_intr(pf
->pdev
->irq
, netdev
);
3418 pf
->flags
&= ~I40E_FLAG_IN_NETPOLL
;
3423 * i40e_pf_txq_wait - Wait for a PF's Tx queue to be enabled or disabled
3424 * @pf: the PF being configured
3425 * @pf_q: the PF queue
3426 * @enable: enable or disable state of the queue
3428 * This routine will wait for the given Tx queue of the PF to reach the
3429 * enabled or disabled state.
3430 * Returns -ETIMEDOUT in case of failing to reach the requested state after
3431 * multiple retries; else will return 0 in case of success.
3433 static int i40e_pf_txq_wait(struct i40e_pf
*pf
, int pf_q
, bool enable
)
3438 for (i
= 0; i
< I40E_QUEUE_WAIT_RETRY_LIMIT
; i
++) {
3439 tx_reg
= rd32(&pf
->hw
, I40E_QTX_ENA(pf_q
));
3440 if (enable
== !!(tx_reg
& I40E_QTX_ENA_QENA_STAT_MASK
))
3443 usleep_range(10, 20);
3445 if (i
>= I40E_QUEUE_WAIT_RETRY_LIMIT
)
3452 * i40e_vsi_control_tx - Start or stop a VSI's rings
3453 * @vsi: the VSI being configured
3454 * @enable: start or stop the rings
3456 static int i40e_vsi_control_tx(struct i40e_vsi
*vsi
, bool enable
)
3458 struct i40e_pf
*pf
= vsi
->back
;
3459 struct i40e_hw
*hw
= &pf
->hw
;
3460 int i
, j
, pf_q
, ret
= 0;
3463 pf_q
= vsi
->base_queue
;
3464 for (i
= 0; i
< vsi
->num_queue_pairs
; i
++, pf_q
++) {
3466 /* warn the TX unit of coming changes */
3467 i40e_pre_tx_queue_cfg(&pf
->hw
, pf_q
, enable
);
3469 usleep_range(10, 20);
3471 for (j
= 0; j
< 50; j
++) {
3472 tx_reg
= rd32(hw
, I40E_QTX_ENA(pf_q
));
3473 if (((tx_reg
>> I40E_QTX_ENA_QENA_REQ_SHIFT
) & 1) ==
3474 ((tx_reg
>> I40E_QTX_ENA_QENA_STAT_SHIFT
) & 1))
3476 usleep_range(1000, 2000);
3478 /* Skip if the queue is already in the requested state */
3479 if (enable
== !!(tx_reg
& I40E_QTX_ENA_QENA_STAT_MASK
))
3482 /* turn on/off the queue */
3484 wr32(hw
, I40E_QTX_HEAD(pf_q
), 0);
3485 tx_reg
|= I40E_QTX_ENA_QENA_REQ_MASK
;
3487 tx_reg
&= ~I40E_QTX_ENA_QENA_REQ_MASK
;
3490 wr32(hw
, I40E_QTX_ENA(pf_q
), tx_reg
);
3492 /* wait for the change to finish */
3493 ret
= i40e_pf_txq_wait(pf
, pf_q
, enable
);
3495 dev_info(&pf
->pdev
->dev
,
3496 "%s: VSI seid %d Tx ring %d %sable timeout\n",
3497 __func__
, vsi
->seid
, pf_q
,
3498 (enable
? "en" : "dis"));
3503 if (hw
->revision_id
== 0)
3509 * i40e_pf_rxq_wait - Wait for a PF's Rx 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 Rx 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_rxq_wait(struct i40e_pf
*pf
, int pf_q
, bool enable
)
3524 for (i
= 0; i
< I40E_QUEUE_WAIT_RETRY_LIMIT
; i
++) {
3525 rx_reg
= rd32(&pf
->hw
, I40E_QRX_ENA(pf_q
));
3526 if (enable
== !!(rx_reg
& I40E_QRX_ENA_QENA_STAT_MASK
))
3529 usleep_range(10, 20);
3531 if (i
>= I40E_QUEUE_WAIT_RETRY_LIMIT
)
3538 * i40e_vsi_control_rx - 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_rx(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
++) {
3551 for (j
= 0; j
< 50; j
++) {
3552 rx_reg
= rd32(hw
, I40E_QRX_ENA(pf_q
));
3553 if (((rx_reg
>> I40E_QRX_ENA_QENA_REQ_SHIFT
) & 1) ==
3554 ((rx_reg
>> I40E_QRX_ENA_QENA_STAT_SHIFT
) & 1))
3556 usleep_range(1000, 2000);
3559 /* Skip if the queue is already in the requested state */
3560 if (enable
== !!(rx_reg
& I40E_QRX_ENA_QENA_STAT_MASK
))
3563 /* turn on/off the queue */
3565 rx_reg
|= I40E_QRX_ENA_QENA_REQ_MASK
;
3567 rx_reg
&= ~I40E_QRX_ENA_QENA_REQ_MASK
;
3568 wr32(hw
, I40E_QRX_ENA(pf_q
), rx_reg
);
3570 /* wait for the change to finish */
3571 ret
= i40e_pf_rxq_wait(pf
, pf_q
, enable
);
3573 dev_info(&pf
->pdev
->dev
,
3574 "%s: VSI seid %d Rx ring %d %sable timeout\n",
3575 __func__
, vsi
->seid
, pf_q
,
3576 (enable
? "en" : "dis"));
3585 * i40e_vsi_control_rings - Start or stop a VSI's rings
3586 * @vsi: the VSI being configured
3587 * @enable: start or stop the rings
3589 int i40e_vsi_control_rings(struct i40e_vsi
*vsi
, bool request
)
3593 /* do rx first for enable and last for disable */
3595 ret
= i40e_vsi_control_rx(vsi
, request
);
3598 ret
= i40e_vsi_control_tx(vsi
, request
);
3600 /* Ignore return value, we need to shutdown whatever we can */
3601 i40e_vsi_control_tx(vsi
, request
);
3602 i40e_vsi_control_rx(vsi
, request
);
3609 * i40e_vsi_free_irq - Free the irq association with the OS
3610 * @vsi: the VSI being configured
3612 static void i40e_vsi_free_irq(struct i40e_vsi
*vsi
)
3614 struct i40e_pf
*pf
= vsi
->back
;
3615 struct i40e_hw
*hw
= &pf
->hw
;
3616 int base
= vsi
->base_vector
;
3620 if (pf
->flags
& I40E_FLAG_MSIX_ENABLED
) {
3621 if (!vsi
->q_vectors
)
3624 if (!vsi
->irqs_ready
)
3627 vsi
->irqs_ready
= false;
3628 for (i
= 0; i
< vsi
->num_q_vectors
; i
++) {
3629 u16 vector
= i
+ base
;
3631 /* free only the irqs that were actually requested */
3632 if (!vsi
->q_vectors
[i
] ||
3633 !vsi
->q_vectors
[i
]->num_ringpairs
)
3636 /* clear the affinity_mask in the IRQ descriptor */
3637 irq_set_affinity_hint(pf
->msix_entries
[vector
].vector
,
3639 free_irq(pf
->msix_entries
[vector
].vector
,
3642 /* Tear down the interrupt queue link list
3644 * We know that they come in pairs and always
3645 * the Rx first, then the Tx. To clear the
3646 * link list, stick the EOL value into the
3647 * next_q field of the registers.
3649 val
= rd32(hw
, I40E_PFINT_LNKLSTN(vector
- 1));
3650 qp
= (val
& I40E_PFINT_LNKLSTN_FIRSTQ_INDX_MASK
)
3651 >> I40E_PFINT_LNKLSTN_FIRSTQ_INDX_SHIFT
;
3652 val
|= I40E_QUEUE_END_OF_LIST
3653 << I40E_PFINT_LNKLSTN_FIRSTQ_INDX_SHIFT
;
3654 wr32(hw
, I40E_PFINT_LNKLSTN(vector
- 1), val
);
3656 while (qp
!= I40E_QUEUE_END_OF_LIST
) {
3659 val
= rd32(hw
, I40E_QINT_RQCTL(qp
));
3661 val
&= ~(I40E_QINT_RQCTL_MSIX_INDX_MASK
|
3662 I40E_QINT_RQCTL_MSIX0_INDX_MASK
|
3663 I40E_QINT_RQCTL_CAUSE_ENA_MASK
|
3664 I40E_QINT_RQCTL_INTEVENT_MASK
);
3666 val
|= (I40E_QINT_RQCTL_ITR_INDX_MASK
|
3667 I40E_QINT_RQCTL_NEXTQ_INDX_MASK
);
3669 wr32(hw
, I40E_QINT_RQCTL(qp
), val
);
3671 val
= rd32(hw
, I40E_QINT_TQCTL(qp
));
3673 next
= (val
& I40E_QINT_TQCTL_NEXTQ_INDX_MASK
)
3674 >> I40E_QINT_TQCTL_NEXTQ_INDX_SHIFT
;
3676 val
&= ~(I40E_QINT_TQCTL_MSIX_INDX_MASK
|
3677 I40E_QINT_TQCTL_MSIX0_INDX_MASK
|
3678 I40E_QINT_TQCTL_CAUSE_ENA_MASK
|
3679 I40E_QINT_TQCTL_INTEVENT_MASK
);
3681 val
|= (I40E_QINT_TQCTL_ITR_INDX_MASK
|
3682 I40E_QINT_TQCTL_NEXTQ_INDX_MASK
);
3684 wr32(hw
, I40E_QINT_TQCTL(qp
), val
);
3689 free_irq(pf
->pdev
->irq
, pf
);
3691 val
= rd32(hw
, I40E_PFINT_LNKLST0
);
3692 qp
= (val
& I40E_PFINT_LNKLSTN_FIRSTQ_INDX_MASK
)
3693 >> I40E_PFINT_LNKLSTN_FIRSTQ_INDX_SHIFT
;
3694 val
|= I40E_QUEUE_END_OF_LIST
3695 << I40E_PFINT_LNKLST0_FIRSTQ_INDX_SHIFT
;
3696 wr32(hw
, I40E_PFINT_LNKLST0
, val
);
3698 val
= rd32(hw
, I40E_QINT_RQCTL(qp
));
3699 val
&= ~(I40E_QINT_RQCTL_MSIX_INDX_MASK
|
3700 I40E_QINT_RQCTL_MSIX0_INDX_MASK
|
3701 I40E_QINT_RQCTL_CAUSE_ENA_MASK
|
3702 I40E_QINT_RQCTL_INTEVENT_MASK
);
3704 val
|= (I40E_QINT_RQCTL_ITR_INDX_MASK
|
3705 I40E_QINT_RQCTL_NEXTQ_INDX_MASK
);
3707 wr32(hw
, I40E_QINT_RQCTL(qp
), val
);
3709 val
= rd32(hw
, I40E_QINT_TQCTL(qp
));
3711 val
&= ~(I40E_QINT_TQCTL_MSIX_INDX_MASK
|
3712 I40E_QINT_TQCTL_MSIX0_INDX_MASK
|
3713 I40E_QINT_TQCTL_CAUSE_ENA_MASK
|
3714 I40E_QINT_TQCTL_INTEVENT_MASK
);
3716 val
|= (I40E_QINT_TQCTL_ITR_INDX_MASK
|
3717 I40E_QINT_TQCTL_NEXTQ_INDX_MASK
);
3719 wr32(hw
, I40E_QINT_TQCTL(qp
), val
);
3724 * i40e_free_q_vector - Free memory allocated for specific interrupt vector
3725 * @vsi: the VSI being configured
3726 * @v_idx: Index of vector to be freed
3728 * This function frees the memory allocated to the q_vector. In addition if
3729 * NAPI is enabled it will delete any references to the NAPI struct prior
3730 * to freeing the q_vector.
3732 static void i40e_free_q_vector(struct i40e_vsi
*vsi
, int v_idx
)
3734 struct i40e_q_vector
*q_vector
= vsi
->q_vectors
[v_idx
];
3735 struct i40e_ring
*ring
;
3740 /* disassociate q_vector from rings */
3741 i40e_for_each_ring(ring
, q_vector
->tx
)
3742 ring
->q_vector
= NULL
;
3744 i40e_for_each_ring(ring
, q_vector
->rx
)
3745 ring
->q_vector
= NULL
;
3747 /* only VSI w/ an associated netdev is set up w/ NAPI */
3749 netif_napi_del(&q_vector
->napi
);
3751 vsi
->q_vectors
[v_idx
] = NULL
;
3753 kfree_rcu(q_vector
, rcu
);
3757 * i40e_vsi_free_q_vectors - Free memory allocated for interrupt vectors
3758 * @vsi: the VSI being un-configured
3760 * This frees the memory allocated to the q_vectors and
3761 * deletes references to the NAPI struct.
3763 static void i40e_vsi_free_q_vectors(struct i40e_vsi
*vsi
)
3767 for (v_idx
= 0; v_idx
< vsi
->num_q_vectors
; v_idx
++)
3768 i40e_free_q_vector(vsi
, v_idx
);
3772 * i40e_reset_interrupt_capability - Disable interrupt setup in OS
3773 * @pf: board private structure
3775 static void i40e_reset_interrupt_capability(struct i40e_pf
*pf
)
3777 /* If we're in Legacy mode, the interrupt was cleaned in vsi_close */
3778 if (pf
->flags
& I40E_FLAG_MSIX_ENABLED
) {
3779 pci_disable_msix(pf
->pdev
);
3780 kfree(pf
->msix_entries
);
3781 pf
->msix_entries
= NULL
;
3782 } else if (pf
->flags
& I40E_FLAG_MSI_ENABLED
) {
3783 pci_disable_msi(pf
->pdev
);
3785 pf
->flags
&= ~(I40E_FLAG_MSIX_ENABLED
| I40E_FLAG_MSI_ENABLED
);
3789 * i40e_clear_interrupt_scheme - Clear the current interrupt scheme settings
3790 * @pf: board private structure
3792 * We go through and clear interrupt specific resources and reset the structure
3793 * to pre-load conditions
3795 static void i40e_clear_interrupt_scheme(struct i40e_pf
*pf
)
3799 i40e_put_lump(pf
->irq_pile
, 0, I40E_PILE_VALID_BIT
-1);
3800 for (i
= 0; i
< pf
->num_alloc_vsi
; i
++)
3802 i40e_vsi_free_q_vectors(pf
->vsi
[i
]);
3803 i40e_reset_interrupt_capability(pf
);
3807 * i40e_napi_enable_all - Enable NAPI for all q_vectors in the VSI
3808 * @vsi: the VSI being configured
3810 static void i40e_napi_enable_all(struct i40e_vsi
*vsi
)
3817 for (q_idx
= 0; q_idx
< vsi
->num_q_vectors
; q_idx
++)
3818 napi_enable(&vsi
->q_vectors
[q_idx
]->napi
);
3822 * i40e_napi_disable_all - Disable NAPI for all q_vectors in the VSI
3823 * @vsi: the VSI being configured
3825 static void i40e_napi_disable_all(struct i40e_vsi
*vsi
)
3832 for (q_idx
= 0; q_idx
< vsi
->num_q_vectors
; q_idx
++)
3833 napi_disable(&vsi
->q_vectors
[q_idx
]->napi
);
3837 * i40e_vsi_close - Shut down a VSI
3838 * @vsi: the vsi to be quelled
3840 static void i40e_vsi_close(struct i40e_vsi
*vsi
)
3842 if (!test_and_set_bit(__I40E_DOWN
, &vsi
->state
))
3844 i40e_vsi_free_irq(vsi
);
3845 i40e_vsi_free_tx_resources(vsi
);
3846 i40e_vsi_free_rx_resources(vsi
);
3850 * i40e_quiesce_vsi - Pause a given VSI
3851 * @vsi: the VSI being paused
3853 static void i40e_quiesce_vsi(struct i40e_vsi
*vsi
)
3855 if (test_bit(__I40E_DOWN
, &vsi
->state
))
3858 set_bit(__I40E_NEEDS_RESTART
, &vsi
->state
);
3859 if (vsi
->netdev
&& netif_running(vsi
->netdev
)) {
3860 vsi
->netdev
->netdev_ops
->ndo_stop(vsi
->netdev
);
3862 i40e_vsi_close(vsi
);
3867 * i40e_unquiesce_vsi - Resume a given VSI
3868 * @vsi: the VSI being resumed
3870 static void i40e_unquiesce_vsi(struct i40e_vsi
*vsi
)
3872 if (!test_bit(__I40E_NEEDS_RESTART
, &vsi
->state
))
3875 clear_bit(__I40E_NEEDS_RESTART
, &vsi
->state
);
3876 if (vsi
->netdev
&& netif_running(vsi
->netdev
))
3877 vsi
->netdev
->netdev_ops
->ndo_open(vsi
->netdev
);
3879 i40e_vsi_open(vsi
); /* this clears the DOWN bit */
3883 * i40e_pf_quiesce_all_vsi - Pause all VSIs on a PF
3886 static void i40e_pf_quiesce_all_vsi(struct i40e_pf
*pf
)
3890 for (v
= 0; v
< pf
->num_alloc_vsi
; v
++) {
3892 i40e_quiesce_vsi(pf
->vsi
[v
]);
3897 * i40e_pf_unquiesce_all_vsi - Resume all VSIs on a PF
3900 static void i40e_pf_unquiesce_all_vsi(struct i40e_pf
*pf
)
3904 for (v
= 0; v
< pf
->num_alloc_vsi
; v
++) {
3906 i40e_unquiesce_vsi(pf
->vsi
[v
]);
3911 * i40e_dcb_get_num_tc - Get the number of TCs from DCBx config
3912 * @dcbcfg: the corresponding DCBx configuration structure
3914 * Return the number of TCs from given DCBx configuration
3916 static u8
i40e_dcb_get_num_tc(struct i40e_dcbx_config
*dcbcfg
)
3921 /* Scan the ETS Config Priority Table to find
3922 * traffic class enabled for a given priority
3923 * and use the traffic class index to get the
3924 * number of traffic classes enabled
3926 for (i
= 0; i
< I40E_MAX_USER_PRIORITY
; i
++) {
3927 if (dcbcfg
->etscfg
.prioritytable
[i
] > num_tc
)
3928 num_tc
= dcbcfg
->etscfg
.prioritytable
[i
];
3931 /* Traffic class index starts from zero so
3932 * increment to return the actual count
3938 * i40e_dcb_get_enabled_tc - Get enabled traffic classes
3939 * @dcbcfg: the corresponding DCBx configuration structure
3941 * Query the current DCB configuration and return the number of
3942 * traffic classes enabled from the given DCBX config
3944 static u8
i40e_dcb_get_enabled_tc(struct i40e_dcbx_config
*dcbcfg
)
3946 u8 num_tc
= i40e_dcb_get_num_tc(dcbcfg
);
3950 for (i
= 0; i
< num_tc
; i
++)
3951 enabled_tc
|= 1 << i
;
3957 * i40e_pf_get_num_tc - Get enabled traffic classes for PF
3958 * @pf: PF being queried
3960 * Return number of traffic classes enabled for the given PF
3962 static u8
i40e_pf_get_num_tc(struct i40e_pf
*pf
)
3964 struct i40e_hw
*hw
= &pf
->hw
;
3967 struct i40e_dcbx_config
*dcbcfg
= &hw
->local_dcbx_config
;
3969 /* If DCB is not enabled then always in single TC */
3970 if (!(pf
->flags
& I40E_FLAG_DCB_ENABLED
))
3973 /* MFP mode return count of enabled TCs for this PF */
3974 if (pf
->flags
& I40E_FLAG_MFP_ENABLED
) {
3975 enabled_tc
= pf
->hw
.func_caps
.enabled_tcmap
;
3976 for (i
= 0; i
< I40E_MAX_TRAFFIC_CLASS
; i
++) {
3977 if (enabled_tc
& (1 << i
))
3983 /* SFP mode will be enabled for all TCs on port */
3984 return i40e_dcb_get_num_tc(dcbcfg
);
3988 * i40e_pf_get_default_tc - Get bitmap for first enabled TC
3989 * @pf: PF being queried
3991 * Return a bitmap for first enabled traffic class for this PF.
3993 static u8
i40e_pf_get_default_tc(struct i40e_pf
*pf
)
3995 u8 enabled_tc
= pf
->hw
.func_caps
.enabled_tcmap
;
3999 return 0x1; /* TC0 */
4001 /* Find the first enabled TC */
4002 for (i
= 0; i
< I40E_MAX_TRAFFIC_CLASS
; i
++) {
4003 if (enabled_tc
& (1 << i
))
4011 * i40e_pf_get_pf_tc_map - Get bitmap for enabled traffic classes
4012 * @pf: PF being queried
4014 * Return a bitmap for enabled traffic classes for this PF.
4016 static u8
i40e_pf_get_tc_map(struct i40e_pf
*pf
)
4018 /* If DCB is not enabled for this PF then just return default TC */
4019 if (!(pf
->flags
& I40E_FLAG_DCB_ENABLED
))
4020 return i40e_pf_get_default_tc(pf
);
4022 /* MFP mode will have enabled TCs set by FW */
4023 if (pf
->flags
& I40E_FLAG_MFP_ENABLED
)
4024 return pf
->hw
.func_caps
.enabled_tcmap
;
4026 /* SFP mode we want PF to be enabled for all TCs */
4027 return i40e_dcb_get_enabled_tc(&pf
->hw
.local_dcbx_config
);
4031 * i40e_vsi_get_bw_info - Query VSI BW Information
4032 * @vsi: the VSI being queried
4034 * Returns 0 on success, negative value on failure
4036 static int i40e_vsi_get_bw_info(struct i40e_vsi
*vsi
)
4038 struct i40e_aqc_query_vsi_ets_sla_config_resp bw_ets_config
= {0};
4039 struct i40e_aqc_query_vsi_bw_config_resp bw_config
= {0};
4040 struct i40e_pf
*pf
= vsi
->back
;
4041 struct i40e_hw
*hw
= &pf
->hw
;
4046 /* Get the VSI level BW configuration */
4047 aq_ret
= i40e_aq_query_vsi_bw_config(hw
, vsi
->seid
, &bw_config
, NULL
);
4049 dev_info(&pf
->pdev
->dev
,
4050 "couldn't get pf vsi bw config, err %d, aq_err %d\n",
4051 aq_ret
, pf
->hw
.aq
.asq_last_status
);
4055 /* Get the VSI level BW configuration per TC */
4056 aq_ret
= i40e_aq_query_vsi_ets_sla_config(hw
, vsi
->seid
, &bw_ets_config
,
4059 dev_info(&pf
->pdev
->dev
,
4060 "couldn't get pf vsi ets bw config, err %d, aq_err %d\n",
4061 aq_ret
, pf
->hw
.aq
.asq_last_status
);
4065 if (bw_config
.tc_valid_bits
!= bw_ets_config
.tc_valid_bits
) {
4066 dev_info(&pf
->pdev
->dev
,
4067 "Enabled TCs mismatch from querying VSI BW info 0x%08x 0x%08x\n",
4068 bw_config
.tc_valid_bits
,
4069 bw_ets_config
.tc_valid_bits
);
4070 /* Still continuing */
4073 vsi
->bw_limit
= le16_to_cpu(bw_config
.port_bw_limit
);
4074 vsi
->bw_max_quanta
= bw_config
.max_bw
;
4075 tc_bw_max
= le16_to_cpu(bw_ets_config
.tc_bw_max
[0]) |
4076 (le16_to_cpu(bw_ets_config
.tc_bw_max
[1]) << 16);
4077 for (i
= 0; i
< I40E_MAX_TRAFFIC_CLASS
; i
++) {
4078 vsi
->bw_ets_share_credits
[i
] = bw_ets_config
.share_credits
[i
];
4079 vsi
->bw_ets_limit_credits
[i
] =
4080 le16_to_cpu(bw_ets_config
.credits
[i
]);
4081 /* 3 bits out of 4 for each TC */
4082 vsi
->bw_ets_max_quanta
[i
] = (u8
)((tc_bw_max
>> (i
*4)) & 0x7);
4089 * i40e_vsi_configure_bw_alloc - Configure VSI BW allocation per TC
4090 * @vsi: the VSI being configured
4091 * @enabled_tc: TC bitmap
4092 * @bw_credits: BW shared credits per TC
4094 * Returns 0 on success, negative value on failure
4096 static int i40e_vsi_configure_bw_alloc(struct i40e_vsi
*vsi
, u8 enabled_tc
,
4099 struct i40e_aqc_configure_vsi_tc_bw_data bw_data
;
4103 bw_data
.tc_valid_bits
= enabled_tc
;
4104 for (i
= 0; i
< I40E_MAX_TRAFFIC_CLASS
; i
++)
4105 bw_data
.tc_bw_credits
[i
] = bw_share
[i
];
4107 aq_ret
= i40e_aq_config_vsi_tc_bw(&vsi
->back
->hw
, vsi
->seid
, &bw_data
,
4110 dev_info(&vsi
->back
->pdev
->dev
,
4111 "AQ command Config VSI BW allocation per TC failed = %d\n",
4112 vsi
->back
->hw
.aq
.asq_last_status
);
4116 for (i
= 0; i
< I40E_MAX_TRAFFIC_CLASS
; i
++)
4117 vsi
->info
.qs_handle
[i
] = bw_data
.qs_handles
[i
];
4123 * i40e_vsi_config_netdev_tc - Setup the netdev TC configuration
4124 * @vsi: the VSI being configured
4125 * @enabled_tc: TC map to be enabled
4128 static void i40e_vsi_config_netdev_tc(struct i40e_vsi
*vsi
, u8 enabled_tc
)
4130 struct net_device
*netdev
= vsi
->netdev
;
4131 struct i40e_pf
*pf
= vsi
->back
;
4132 struct i40e_hw
*hw
= &pf
->hw
;
4135 struct i40e_dcbx_config
*dcbcfg
= &hw
->local_dcbx_config
;
4141 netdev_reset_tc(netdev
);
4145 /* Set up actual enabled TCs on the VSI */
4146 if (netdev_set_num_tc(netdev
, vsi
->tc_config
.numtc
))
4149 /* set per TC queues for the VSI */
4150 for (i
= 0; i
< I40E_MAX_TRAFFIC_CLASS
; i
++) {
4151 /* Only set TC queues for enabled tcs
4153 * e.g. For a VSI that has TC0 and TC3 enabled the
4154 * enabled_tc bitmap would be 0x00001001; the driver
4155 * will set the numtc for netdev as 2 that will be
4156 * referenced by the netdev layer as TC 0 and 1.
4158 if (vsi
->tc_config
.enabled_tc
& (1 << i
))
4159 netdev_set_tc_queue(netdev
,
4160 vsi
->tc_config
.tc_info
[i
].netdev_tc
,
4161 vsi
->tc_config
.tc_info
[i
].qcount
,
4162 vsi
->tc_config
.tc_info
[i
].qoffset
);
4165 /* Assign UP2TC map for the VSI */
4166 for (i
= 0; i
< I40E_MAX_USER_PRIORITY
; i
++) {
4167 /* Get the actual TC# for the UP */
4168 u8 ets_tc
= dcbcfg
->etscfg
.prioritytable
[i
];
4169 /* Get the mapped netdev TC# for the UP */
4170 netdev_tc
= vsi
->tc_config
.tc_info
[ets_tc
].netdev_tc
;
4171 netdev_set_prio_tc_map(netdev
, i
, netdev_tc
);
4176 * i40e_vsi_update_queue_map - Update our copy of VSi info with new queue map
4177 * @vsi: the VSI being configured
4178 * @ctxt: the ctxt buffer returned from AQ VSI update param command
4180 static void i40e_vsi_update_queue_map(struct i40e_vsi
*vsi
,
4181 struct i40e_vsi_context
*ctxt
)
4183 /* copy just the sections touched not the entire info
4184 * since not all sections are valid as returned by
4187 vsi
->info
.mapping_flags
= ctxt
->info
.mapping_flags
;
4188 memcpy(&vsi
->info
.queue_mapping
,
4189 &ctxt
->info
.queue_mapping
, sizeof(vsi
->info
.queue_mapping
));
4190 memcpy(&vsi
->info
.tc_mapping
, ctxt
->info
.tc_mapping
,
4191 sizeof(vsi
->info
.tc_mapping
));
4195 * i40e_vsi_config_tc - Configure VSI Tx Scheduler for given TC map
4196 * @vsi: VSI to be configured
4197 * @enabled_tc: TC bitmap
4199 * This configures a particular VSI for TCs that are mapped to the
4200 * given TC bitmap. It uses default bandwidth share for TCs across
4201 * VSIs to configure TC for a particular VSI.
4204 * It is expected that the VSI queues have been quisced before calling
4207 static int i40e_vsi_config_tc(struct i40e_vsi
*vsi
, u8 enabled_tc
)
4209 u8 bw_share
[I40E_MAX_TRAFFIC_CLASS
] = {0};
4210 struct i40e_vsi_context ctxt
;
4214 /* Check if enabled_tc is same as existing or new TCs */
4215 if (vsi
->tc_config
.enabled_tc
== enabled_tc
)
4218 /* Enable ETS TCs with equal BW Share for now across all VSIs */
4219 for (i
= 0; i
< I40E_MAX_TRAFFIC_CLASS
; i
++) {
4220 if (enabled_tc
& (1 << i
))
4224 ret
= i40e_vsi_configure_bw_alloc(vsi
, enabled_tc
, bw_share
);
4226 dev_info(&vsi
->back
->pdev
->dev
,
4227 "Failed configuring TC map %d for VSI %d\n",
4228 enabled_tc
, vsi
->seid
);
4232 /* Update Queue Pairs Mapping for currently enabled UPs */
4233 ctxt
.seid
= vsi
->seid
;
4234 ctxt
.pf_num
= vsi
->back
->hw
.pf_id
;
4236 ctxt
.uplink_seid
= vsi
->uplink_seid
;
4237 memcpy(&ctxt
.info
, &vsi
->info
, sizeof(vsi
->info
));
4238 i40e_vsi_setup_queue_map(vsi
, &ctxt
, enabled_tc
, false);
4240 /* Update the VSI after updating the VSI queue-mapping information */
4241 ret
= i40e_aq_update_vsi_params(&vsi
->back
->hw
, &ctxt
, NULL
);
4243 dev_info(&vsi
->back
->pdev
->dev
,
4244 "update vsi failed, aq_err=%d\n",
4245 vsi
->back
->hw
.aq
.asq_last_status
);
4248 /* update the local VSI info with updated queue map */
4249 i40e_vsi_update_queue_map(vsi
, &ctxt
);
4250 vsi
->info
.valid_sections
= 0;
4252 /* Update current VSI BW information */
4253 ret
= i40e_vsi_get_bw_info(vsi
);
4255 dev_info(&vsi
->back
->pdev
->dev
,
4256 "Failed updating vsi bw info, aq_err=%d\n",
4257 vsi
->back
->hw
.aq
.asq_last_status
);
4261 /* Update the netdev TC setup */
4262 i40e_vsi_config_netdev_tc(vsi
, enabled_tc
);
4268 * i40e_veb_config_tc - Configure TCs for given VEB
4270 * @enabled_tc: TC bitmap
4272 * Configures given TC bitmap for VEB (switching) element
4274 int i40e_veb_config_tc(struct i40e_veb
*veb
, u8 enabled_tc
)
4276 struct i40e_aqc_configure_switching_comp_bw_config_data bw_data
= {0};
4277 struct i40e_pf
*pf
= veb
->pf
;
4281 /* No TCs or already enabled TCs just return */
4282 if (!enabled_tc
|| veb
->enabled_tc
== enabled_tc
)
4285 bw_data
.tc_valid_bits
= enabled_tc
;
4286 /* bw_data.absolute_credits is not set (relative) */
4288 /* Enable ETS TCs with equal BW Share for now */
4289 for (i
= 0; i
< I40E_MAX_TRAFFIC_CLASS
; i
++) {
4290 if (enabled_tc
& (1 << i
))
4291 bw_data
.tc_bw_share_credits
[i
] = 1;
4294 ret
= i40e_aq_config_switch_comp_bw_config(&pf
->hw
, veb
->seid
,
4297 dev_info(&pf
->pdev
->dev
,
4298 "veb bw config failed, aq_err=%d\n",
4299 pf
->hw
.aq
.asq_last_status
);
4303 /* Update the BW information */
4304 ret
= i40e_veb_get_bw_info(veb
);
4306 dev_info(&pf
->pdev
->dev
,
4307 "Failed getting veb bw config, aq_err=%d\n",
4308 pf
->hw
.aq
.asq_last_status
);
4315 #ifdef CONFIG_I40E_DCB
4317 * i40e_dcb_reconfigure - Reconfigure all VEBs and VSIs
4320 * Reconfigure VEB/VSIs on a given PF; it is assumed that
4321 * the caller would've quiesce all the VSIs before calling
4324 static void i40e_dcb_reconfigure(struct i40e_pf
*pf
)
4330 /* Enable the TCs available on PF to all VEBs */
4331 tc_map
= i40e_pf_get_tc_map(pf
);
4332 for (v
= 0; v
< I40E_MAX_VEB
; v
++) {
4335 ret
= i40e_veb_config_tc(pf
->veb
[v
], tc_map
);
4337 dev_info(&pf
->pdev
->dev
,
4338 "Failed configuring TC for VEB seid=%d\n",
4340 /* Will try to configure as many components */
4344 /* Update each VSI */
4345 for (v
= 0; v
< pf
->num_alloc_vsi
; v
++) {
4349 /* - Enable all TCs for the LAN VSI
4351 * - For FCoE VSI only enable the TC configured
4352 * as per the APP TLV
4354 * - For all others keep them at TC0 for now
4356 if (v
== pf
->lan_vsi
)
4357 tc_map
= i40e_pf_get_tc_map(pf
);
4359 tc_map
= i40e_pf_get_default_tc(pf
);
4361 if (pf
->vsi
[v
]->type
== I40E_VSI_FCOE
)
4362 tc_map
= i40e_get_fcoe_tc_map(pf
);
4363 #endif /* #ifdef I40E_FCOE */
4365 ret
= i40e_vsi_config_tc(pf
->vsi
[v
], tc_map
);
4367 dev_info(&pf
->pdev
->dev
,
4368 "Failed configuring TC for VSI seid=%d\n",
4370 /* Will try to configure as many components */
4372 /* Re-configure VSI vectors based on updated TC map */
4373 i40e_vsi_map_rings_to_vectors(pf
->vsi
[v
]);
4374 if (pf
->vsi
[v
]->netdev
)
4375 i40e_dcbnl_set_all(pf
->vsi
[v
]);
4381 * i40e_init_pf_dcb - Initialize DCB configuration
4382 * @pf: PF being configured
4384 * Query the current DCB configuration and cache it
4385 * in the hardware structure
4387 static int i40e_init_pf_dcb(struct i40e_pf
*pf
)
4389 struct i40e_hw
*hw
= &pf
->hw
;
4392 if (pf
->hw
.func_caps
.npar_enable
)
4395 /* Get the initial DCB configuration */
4396 err
= i40e_init_dcb(hw
);
4398 /* Device/Function is not DCBX capable */
4399 if ((!hw
->func_caps
.dcb
) ||
4400 (hw
->dcbx_status
== I40E_DCBX_STATUS_DISABLED
)) {
4401 dev_info(&pf
->pdev
->dev
,
4402 "DCBX offload is not supported or is disabled for this PF.\n");
4404 if (pf
->flags
& I40E_FLAG_MFP_ENABLED
)
4408 /* When status is not DISABLED then DCBX in FW */
4409 pf
->dcbx_cap
= DCB_CAP_DCBX_LLD_MANAGED
|
4410 DCB_CAP_DCBX_VER_IEEE
;
4412 pf
->flags
|= I40E_FLAG_DCB_CAPABLE
;
4413 /* Enable DCB tagging only when more than one TC */
4414 if (i40e_dcb_get_num_tc(&hw
->local_dcbx_config
) > 1)
4415 pf
->flags
|= I40E_FLAG_DCB_ENABLED
;
4418 dev_info(&pf
->pdev
->dev
, "AQ Querying DCB configuration failed: %d\n",
4419 pf
->hw
.aq
.asq_last_status
);
4425 #endif /* CONFIG_I40E_DCB */
4426 #define SPEED_SIZE 14
4429 * i40e_print_link_message - print link up or down
4430 * @vsi: the VSI for which link needs a message
4432 static void i40e_print_link_message(struct i40e_vsi
*vsi
, bool isup
)
4434 char speed
[SPEED_SIZE
] = "Unknown";
4435 char fc
[FC_SIZE
] = "RX/TX";
4438 netdev_info(vsi
->netdev
, "NIC Link is Down\n");
4442 switch (vsi
->back
->hw
.phy
.link_info
.link_speed
) {
4443 case I40E_LINK_SPEED_40GB
:
4444 strlcpy(speed
, "40 Gbps", SPEED_SIZE
);
4446 case I40E_LINK_SPEED_10GB
:
4447 strlcpy(speed
, "10 Gbps", SPEED_SIZE
);
4449 case I40E_LINK_SPEED_1GB
:
4450 strlcpy(speed
, "1000 Mbps", SPEED_SIZE
);
4456 switch (vsi
->back
->hw
.fc
.current_mode
) {
4458 strlcpy(fc
, "RX/TX", FC_SIZE
);
4460 case I40E_FC_TX_PAUSE
:
4461 strlcpy(fc
, "TX", FC_SIZE
);
4463 case I40E_FC_RX_PAUSE
:
4464 strlcpy(fc
, "RX", FC_SIZE
);
4467 strlcpy(fc
, "None", FC_SIZE
);
4471 netdev_info(vsi
->netdev
, "NIC Link is Up %s Full Duplex, Flow Control: %s\n",
4476 * i40e_up_complete - Finish the last steps of bringing up a connection
4477 * @vsi: the VSI being configured
4479 static int i40e_up_complete(struct i40e_vsi
*vsi
)
4481 struct i40e_pf
*pf
= vsi
->back
;
4484 if (pf
->flags
& I40E_FLAG_MSIX_ENABLED
)
4485 i40e_vsi_configure_msix(vsi
);
4487 i40e_configure_msi_and_legacy(vsi
);
4490 err
= i40e_vsi_control_rings(vsi
, true);
4494 clear_bit(__I40E_DOWN
, &vsi
->state
);
4495 i40e_napi_enable_all(vsi
);
4496 i40e_vsi_enable_irq(vsi
);
4498 if ((pf
->hw
.phy
.link_info
.link_info
& I40E_AQ_LINK_UP
) &&
4500 i40e_print_link_message(vsi
, true);
4501 netif_tx_start_all_queues(vsi
->netdev
);
4502 netif_carrier_on(vsi
->netdev
);
4503 } else if (vsi
->netdev
) {
4504 i40e_print_link_message(vsi
, false);
4505 /* need to check for qualified module here*/
4506 if ((pf
->hw
.phy
.link_info
.link_info
&
4507 I40E_AQ_MEDIA_AVAILABLE
) &&
4508 (!(pf
->hw
.phy
.link_info
.an_info
&
4509 I40E_AQ_QUALIFIED_MODULE
)))
4510 netdev_err(vsi
->netdev
,
4511 "the driver failed to link because an unqualified module was detected.");
4514 /* replay FDIR SB filters */
4515 if (vsi
->type
== I40E_VSI_FDIR
) {
4516 /* reset fd counters */
4517 pf
->fd_add_err
= pf
->fd_atr_cnt
= 0;
4518 if (pf
->fd_tcp_rule
> 0) {
4519 pf
->flags
&= ~I40E_FLAG_FD_ATR_ENABLED
;
4520 dev_info(&pf
->pdev
->dev
, "Forcing ATR off, sideband rules for TCP/IPv4 exist\n");
4521 pf
->fd_tcp_rule
= 0;
4523 i40e_fdir_filter_restore(vsi
);
4525 i40e_service_event_schedule(pf
);
4531 * i40e_vsi_reinit_locked - Reset the VSI
4532 * @vsi: the VSI being configured
4534 * Rebuild the ring structs after some configuration
4535 * has changed, e.g. MTU size.
4537 static void i40e_vsi_reinit_locked(struct i40e_vsi
*vsi
)
4539 struct i40e_pf
*pf
= vsi
->back
;
4541 WARN_ON(in_interrupt());
4542 while (test_and_set_bit(__I40E_CONFIG_BUSY
, &pf
->state
))
4543 usleep_range(1000, 2000);
4546 /* Give a VF some time to respond to the reset. The
4547 * two second wait is based upon the watchdog cycle in
4550 if (vsi
->type
== I40E_VSI_SRIOV
)
4553 clear_bit(__I40E_CONFIG_BUSY
, &pf
->state
);
4557 * i40e_up - Bring the connection back up after being down
4558 * @vsi: the VSI being configured
4560 int i40e_up(struct i40e_vsi
*vsi
)
4564 err
= i40e_vsi_configure(vsi
);
4566 err
= i40e_up_complete(vsi
);
4572 * i40e_down - Shutdown the connection processing
4573 * @vsi: the VSI being stopped
4575 void i40e_down(struct i40e_vsi
*vsi
)
4579 /* It is assumed that the caller of this function
4580 * sets the vsi->state __I40E_DOWN bit.
4583 netif_carrier_off(vsi
->netdev
);
4584 netif_tx_disable(vsi
->netdev
);
4586 i40e_vsi_disable_irq(vsi
);
4587 i40e_vsi_control_rings(vsi
, false);
4588 i40e_napi_disable_all(vsi
);
4590 for (i
= 0; i
< vsi
->num_queue_pairs
; i
++) {
4591 i40e_clean_tx_ring(vsi
->tx_rings
[i
]);
4592 i40e_clean_rx_ring(vsi
->rx_rings
[i
]);
4597 * i40e_setup_tc - configure multiple traffic classes
4598 * @netdev: net device to configure
4599 * @tc: number of traffic classes to enable
4602 int i40e_setup_tc(struct net_device
*netdev
, u8 tc
)
4604 static int i40e_setup_tc(struct net_device
*netdev
, u8 tc
)
4607 struct i40e_netdev_priv
*np
= netdev_priv(netdev
);
4608 struct i40e_vsi
*vsi
= np
->vsi
;
4609 struct i40e_pf
*pf
= vsi
->back
;
4614 /* Check if DCB enabled to continue */
4615 if (!(pf
->flags
& I40E_FLAG_DCB_ENABLED
)) {
4616 netdev_info(netdev
, "DCB is not enabled for adapter\n");
4620 /* Check if MFP enabled */
4621 if (pf
->flags
& I40E_FLAG_MFP_ENABLED
) {
4622 netdev_info(netdev
, "Configuring TC not supported in MFP mode\n");
4626 /* Check whether tc count is within enabled limit */
4627 if (tc
> i40e_pf_get_num_tc(pf
)) {
4628 netdev_info(netdev
, "TC count greater than enabled on link for adapter\n");
4632 /* Generate TC map for number of tc requested */
4633 for (i
= 0; i
< tc
; i
++)
4634 enabled_tc
|= (1 << i
);
4636 /* Requesting same TC configuration as already enabled */
4637 if (enabled_tc
== vsi
->tc_config
.enabled_tc
)
4640 /* Quiesce VSI queues */
4641 i40e_quiesce_vsi(vsi
);
4643 /* Configure VSI for enabled TCs */
4644 ret
= i40e_vsi_config_tc(vsi
, enabled_tc
);
4646 netdev_info(netdev
, "Failed configuring TC for VSI seid=%d\n",
4652 i40e_unquiesce_vsi(vsi
);
4659 * i40e_open - Called when a network interface is made active
4660 * @netdev: network interface device structure
4662 * The open entry point is called when a network interface is made
4663 * active by the system (IFF_UP). At this point all resources needed
4664 * for transmit and receive operations are allocated, the interrupt
4665 * handler is registered with the OS, the netdev watchdog subtask is
4666 * enabled, and the stack is notified that the interface is ready.
4668 * Returns 0 on success, negative value on failure
4671 int i40e_open(struct net_device
*netdev
)
4673 static int i40e_open(struct net_device
*netdev
)
4676 struct i40e_netdev_priv
*np
= netdev_priv(netdev
);
4677 struct i40e_vsi
*vsi
= np
->vsi
;
4678 struct i40e_pf
*pf
= vsi
->back
;
4681 /* disallow open during test or if eeprom is broken */
4682 if (test_bit(__I40E_TESTING
, &pf
->state
) ||
4683 test_bit(__I40E_BAD_EEPROM
, &pf
->state
))
4686 netif_carrier_off(netdev
);
4688 err
= i40e_vsi_open(vsi
);
4692 /* configure global TSO hardware offload settings */
4693 wr32(&pf
->hw
, I40E_GLLAN_TSOMSK_F
, be32_to_cpu(TCP_FLAG_PSH
|
4694 TCP_FLAG_FIN
) >> 16);
4695 wr32(&pf
->hw
, I40E_GLLAN_TSOMSK_M
, be32_to_cpu(TCP_FLAG_PSH
|
4697 TCP_FLAG_CWR
) >> 16);
4698 wr32(&pf
->hw
, I40E_GLLAN_TSOMSK_L
, be32_to_cpu(TCP_FLAG_CWR
) >> 16);
4700 #ifdef CONFIG_I40E_VXLAN
4701 vxlan_get_rx_port(netdev
);
4709 * @vsi: the VSI to open
4711 * Finish initialization of the VSI.
4713 * Returns 0 on success, negative value on failure
4715 int i40e_vsi_open(struct i40e_vsi
*vsi
)
4717 struct i40e_pf
*pf
= vsi
->back
;
4718 char int_name
[IFNAMSIZ
];
4721 /* allocate descriptors */
4722 err
= i40e_vsi_setup_tx_resources(vsi
);
4725 err
= i40e_vsi_setup_rx_resources(vsi
);
4729 err
= i40e_vsi_configure(vsi
);
4734 snprintf(int_name
, sizeof(int_name
) - 1, "%s-%s",
4735 dev_driver_string(&pf
->pdev
->dev
), vsi
->netdev
->name
);
4736 err
= i40e_vsi_request_irq(vsi
, int_name
);
4740 /* Notify the stack of the actual queue counts. */
4741 err
= netif_set_real_num_tx_queues(vsi
->netdev
,
4742 vsi
->num_queue_pairs
);
4744 goto err_set_queues
;
4746 err
= netif_set_real_num_rx_queues(vsi
->netdev
,
4747 vsi
->num_queue_pairs
);
4749 goto err_set_queues
;
4751 } else if (vsi
->type
== I40E_VSI_FDIR
) {
4752 snprintf(int_name
, sizeof(int_name
) - 1, "%s-fdir",
4753 dev_driver_string(&pf
->pdev
->dev
));
4754 err
= i40e_vsi_request_irq(vsi
, int_name
);
4760 err
= i40e_up_complete(vsi
);
4762 goto err_up_complete
;
4769 i40e_vsi_free_irq(vsi
);
4771 i40e_vsi_free_rx_resources(vsi
);
4773 i40e_vsi_free_tx_resources(vsi
);
4774 if (vsi
== pf
->vsi
[pf
->lan_vsi
])
4775 i40e_do_reset(pf
, (1 << __I40E_PF_RESET_REQUESTED
));
4781 * i40e_fdir_filter_exit - Cleans up the Flow Director accounting
4782 * @pf: Pointer to pf
4784 * This function destroys the hlist where all the Flow Director
4785 * filters were saved.
4787 static void i40e_fdir_filter_exit(struct i40e_pf
*pf
)
4789 struct i40e_fdir_filter
*filter
;
4790 struct hlist_node
*node2
;
4792 hlist_for_each_entry_safe(filter
, node2
,
4793 &pf
->fdir_filter_list
, fdir_node
) {
4794 hlist_del(&filter
->fdir_node
);
4797 pf
->fdir_pf_active_filters
= 0;
4801 * i40e_close - Disables a network interface
4802 * @netdev: network interface device structure
4804 * The close entry point is called when an interface is de-activated
4805 * by the OS. The hardware is still under the driver's control, but
4806 * this netdev interface is disabled.
4808 * Returns 0, this is not allowed to fail
4811 int i40e_close(struct net_device
*netdev
)
4813 static int i40e_close(struct net_device
*netdev
)
4816 struct i40e_netdev_priv
*np
= netdev_priv(netdev
);
4817 struct i40e_vsi
*vsi
= np
->vsi
;
4819 i40e_vsi_close(vsi
);
4825 * i40e_do_reset - Start a PF or Core Reset sequence
4826 * @pf: board private structure
4827 * @reset_flags: which reset is requested
4829 * The essential difference in resets is that the PF Reset
4830 * doesn't clear the packet buffers, doesn't reset the PE
4831 * firmware, and doesn't bother the other PFs on the chip.
4833 void i40e_do_reset(struct i40e_pf
*pf
, u32 reset_flags
)
4837 WARN_ON(in_interrupt());
4839 if (i40e_check_asq_alive(&pf
->hw
))
4840 i40e_vc_notify_reset(pf
);
4842 /* do the biggest reset indicated */
4843 if (reset_flags
& (1 << __I40E_GLOBAL_RESET_REQUESTED
)) {
4845 /* Request a Global Reset
4847 * This will start the chip's countdown to the actual full
4848 * chip reset event, and a warning interrupt to be sent
4849 * to all PFs, including the requestor. Our handler
4850 * for the warning interrupt will deal with the shutdown
4851 * and recovery of the switch setup.
4853 dev_dbg(&pf
->pdev
->dev
, "GlobalR requested\n");
4854 val
= rd32(&pf
->hw
, I40E_GLGEN_RTRIG
);
4855 val
|= I40E_GLGEN_RTRIG_GLOBR_MASK
;
4856 wr32(&pf
->hw
, I40E_GLGEN_RTRIG
, val
);
4858 } else if (reset_flags
& (1 << __I40E_CORE_RESET_REQUESTED
)) {
4860 /* Request a Core Reset
4862 * Same as Global Reset, except does *not* include the MAC/PHY
4864 dev_dbg(&pf
->pdev
->dev
, "CoreR requested\n");
4865 val
= rd32(&pf
->hw
, I40E_GLGEN_RTRIG
);
4866 val
|= I40E_GLGEN_RTRIG_CORER_MASK
;
4867 wr32(&pf
->hw
, I40E_GLGEN_RTRIG
, val
);
4868 i40e_flush(&pf
->hw
);
4870 } else if (reset_flags
& (1 << __I40E_EMP_RESET_REQUESTED
)) {
4872 /* Request a Firmware Reset
4874 * Same as Global reset, plus restarting the
4875 * embedded firmware engine.
4877 /* enable EMP Reset */
4878 val
= rd32(&pf
->hw
, I40E_GLGEN_RSTENA_EMP
);
4879 val
|= I40E_GLGEN_RSTENA_EMP_EMP_RST_ENA_MASK
;
4880 wr32(&pf
->hw
, I40E_GLGEN_RSTENA_EMP
, val
);
4882 /* force the reset */
4883 val
= rd32(&pf
->hw
, I40E_GLGEN_RTRIG
);
4884 val
|= I40E_GLGEN_RTRIG_EMPFWR_MASK
;
4885 wr32(&pf
->hw
, I40E_GLGEN_RTRIG
, val
);
4886 i40e_flush(&pf
->hw
);
4888 } else if (reset_flags
& (1 << __I40E_PF_RESET_REQUESTED
)) {
4890 /* Request a PF Reset
4892 * Resets only the PF-specific registers
4894 * This goes directly to the tear-down and rebuild of
4895 * the switch, since we need to do all the recovery as
4896 * for the Core Reset.
4898 dev_dbg(&pf
->pdev
->dev
, "PFR requested\n");
4899 i40e_handle_reset_warning(pf
);
4901 } else if (reset_flags
& (1 << __I40E_REINIT_REQUESTED
)) {
4904 /* Find the VSI(s) that requested a re-init */
4905 dev_info(&pf
->pdev
->dev
,
4906 "VSI reinit requested\n");
4907 for (v
= 0; v
< pf
->num_alloc_vsi
; v
++) {
4908 struct i40e_vsi
*vsi
= pf
->vsi
[v
];
4910 test_bit(__I40E_REINIT_REQUESTED
, &vsi
->state
)) {
4911 i40e_vsi_reinit_locked(pf
->vsi
[v
]);
4912 clear_bit(__I40E_REINIT_REQUESTED
, &vsi
->state
);
4916 /* no further action needed, so return now */
4918 } else if (reset_flags
& (1 << __I40E_DOWN_REQUESTED
)) {
4921 /* Find the VSI(s) that needs to be brought down */
4922 dev_info(&pf
->pdev
->dev
, "VSI down requested\n");
4923 for (v
= 0; v
< pf
->num_alloc_vsi
; v
++) {
4924 struct i40e_vsi
*vsi
= pf
->vsi
[v
];
4926 test_bit(__I40E_DOWN_REQUESTED
, &vsi
->state
)) {
4927 set_bit(__I40E_DOWN
, &vsi
->state
);
4929 clear_bit(__I40E_DOWN_REQUESTED
, &vsi
->state
);
4933 /* no further action needed, so return now */
4936 dev_info(&pf
->pdev
->dev
,
4937 "bad reset request 0x%08x\n", reset_flags
);
4942 #ifdef CONFIG_I40E_DCB
4944 * i40e_dcb_need_reconfig - Check if DCB needs reconfig
4945 * @pf: board private structure
4946 * @old_cfg: current DCB config
4947 * @new_cfg: new DCB config
4949 bool i40e_dcb_need_reconfig(struct i40e_pf
*pf
,
4950 struct i40e_dcbx_config
*old_cfg
,
4951 struct i40e_dcbx_config
*new_cfg
)
4953 bool need_reconfig
= false;
4955 /* Check if ETS configuration has changed */
4956 if (memcmp(&new_cfg
->etscfg
,
4958 sizeof(new_cfg
->etscfg
))) {
4959 /* If Priority Table has changed reconfig is needed */
4960 if (memcmp(&new_cfg
->etscfg
.prioritytable
,
4961 &old_cfg
->etscfg
.prioritytable
,
4962 sizeof(new_cfg
->etscfg
.prioritytable
))) {
4963 need_reconfig
= true;
4964 dev_dbg(&pf
->pdev
->dev
, "ETS UP2TC changed.\n");
4967 if (memcmp(&new_cfg
->etscfg
.tcbwtable
,
4968 &old_cfg
->etscfg
.tcbwtable
,
4969 sizeof(new_cfg
->etscfg
.tcbwtable
)))
4970 dev_dbg(&pf
->pdev
->dev
, "ETS TC BW Table changed.\n");
4972 if (memcmp(&new_cfg
->etscfg
.tsatable
,
4973 &old_cfg
->etscfg
.tsatable
,
4974 sizeof(new_cfg
->etscfg
.tsatable
)))
4975 dev_dbg(&pf
->pdev
->dev
, "ETS TSA Table changed.\n");
4978 /* Check if PFC configuration has changed */
4979 if (memcmp(&new_cfg
->pfc
,
4981 sizeof(new_cfg
->pfc
))) {
4982 need_reconfig
= true;
4983 dev_dbg(&pf
->pdev
->dev
, "PFC config change detected.\n");
4986 /* Check if APP Table has changed */
4987 if (memcmp(&new_cfg
->app
,
4989 sizeof(new_cfg
->app
))) {
4990 need_reconfig
= true;
4991 dev_dbg(&pf
->pdev
->dev
, "APP Table change detected.\n");
4994 return need_reconfig
;
4998 * i40e_handle_lldp_event - Handle LLDP Change MIB event
4999 * @pf: board private structure
5000 * @e: event info posted on ARQ
5002 static int i40e_handle_lldp_event(struct i40e_pf
*pf
,
5003 struct i40e_arq_event_info
*e
)
5005 struct i40e_aqc_lldp_get_mib
*mib
=
5006 (struct i40e_aqc_lldp_get_mib
*)&e
->desc
.params
.raw
;
5007 struct i40e_hw
*hw
= &pf
->hw
;
5008 struct i40e_dcbx_config
*dcbx_cfg
= &hw
->local_dcbx_config
;
5009 struct i40e_dcbx_config tmp_dcbx_cfg
;
5010 bool need_reconfig
= false;
5014 /* Not DCB capable or capability disabled */
5015 if (!(pf
->flags
& I40E_FLAG_DCB_CAPABLE
))
5018 /* Ignore if event is not for Nearest Bridge */
5019 type
= ((mib
->type
>> I40E_AQ_LLDP_BRIDGE_TYPE_SHIFT
)
5020 & I40E_AQ_LLDP_BRIDGE_TYPE_MASK
);
5021 if (type
!= I40E_AQ_LLDP_BRIDGE_TYPE_NEAREST_BRIDGE
)
5024 /* Check MIB Type and return if event for Remote MIB update */
5025 type
= mib
->type
& I40E_AQ_LLDP_MIB_TYPE_MASK
;
5026 if (type
== I40E_AQ_LLDP_MIB_REMOTE
) {
5027 /* Update the remote cached instance and return */
5028 ret
= i40e_aq_get_dcb_config(hw
, I40E_AQ_LLDP_MIB_REMOTE
,
5029 I40E_AQ_LLDP_BRIDGE_TYPE_NEAREST_BRIDGE
,
5030 &hw
->remote_dcbx_config
);
5034 /* Convert/store the DCBX data from LLDPDU temporarily */
5035 memset(&tmp_dcbx_cfg
, 0, sizeof(tmp_dcbx_cfg
));
5036 ret
= i40e_lldp_to_dcb_config(e
->msg_buf
, &tmp_dcbx_cfg
);
5038 /* Error in LLDPDU parsing return */
5039 dev_info(&pf
->pdev
->dev
, "Failed parsing LLDPDU from event buffer\n");
5043 /* No change detected in DCBX configs */
5044 if (!memcmp(&tmp_dcbx_cfg
, dcbx_cfg
, sizeof(tmp_dcbx_cfg
))) {
5045 dev_dbg(&pf
->pdev
->dev
, "No change detected in DCBX configuration.\n");
5049 need_reconfig
= i40e_dcb_need_reconfig(pf
, dcbx_cfg
, &tmp_dcbx_cfg
);
5051 i40e_dcbnl_flush_apps(pf
, &tmp_dcbx_cfg
);
5053 /* Overwrite the new configuration */
5054 *dcbx_cfg
= tmp_dcbx_cfg
;
5059 /* Enable DCB tagging only when more than one TC */
5060 if (i40e_dcb_get_num_tc(dcbx_cfg
) > 1)
5061 pf
->flags
|= I40E_FLAG_DCB_ENABLED
;
5063 pf
->flags
&= ~I40E_FLAG_DCB_ENABLED
;
5065 /* Reconfiguration needed quiesce all VSIs */
5066 i40e_pf_quiesce_all_vsi(pf
);
5068 /* Changes in configuration update VEB/VSI */
5069 i40e_dcb_reconfigure(pf
);
5071 i40e_pf_unquiesce_all_vsi(pf
);
5075 #endif /* CONFIG_I40E_DCB */
5078 * i40e_do_reset_safe - Protected reset path for userland calls.
5079 * @pf: board private structure
5080 * @reset_flags: which reset is requested
5083 void i40e_do_reset_safe(struct i40e_pf
*pf
, u32 reset_flags
)
5086 i40e_do_reset(pf
, reset_flags
);
5091 * i40e_handle_lan_overflow_event - Handler for LAN queue overflow event
5092 * @pf: board private structure
5093 * @e: event info posted on ARQ
5095 * Handler for LAN Queue Overflow Event generated by the firmware for PF
5098 static void i40e_handle_lan_overflow_event(struct i40e_pf
*pf
,
5099 struct i40e_arq_event_info
*e
)
5101 struct i40e_aqc_lan_overflow
*data
=
5102 (struct i40e_aqc_lan_overflow
*)&e
->desc
.params
.raw
;
5103 u32 queue
= le32_to_cpu(data
->prtdcb_rupto
);
5104 u32 qtx_ctl
= le32_to_cpu(data
->otx_ctl
);
5105 struct i40e_hw
*hw
= &pf
->hw
;
5109 dev_dbg(&pf
->pdev
->dev
, "overflow Rx Queue Number = %d QTX_CTL=0x%08x\n",
5112 /* Queue belongs to VF, find the VF and issue VF reset */
5113 if (((qtx_ctl
& I40E_QTX_CTL_PFVF_Q_MASK
)
5114 >> I40E_QTX_CTL_PFVF_Q_SHIFT
) == I40E_QTX_CTL_VF_QUEUE
) {
5115 vf_id
= (u16
)((qtx_ctl
& I40E_QTX_CTL_VFVM_INDX_MASK
)
5116 >> I40E_QTX_CTL_VFVM_INDX_SHIFT
);
5117 vf_id
-= hw
->func_caps
.vf_base_id
;
5118 vf
= &pf
->vf
[vf_id
];
5119 i40e_vc_notify_vf_reset(vf
);
5120 /* Allow VF to process pending reset notification */
5122 i40e_reset_vf(vf
, false);
5127 * i40e_service_event_complete - Finish up the service event
5128 * @pf: board private structure
5130 static void i40e_service_event_complete(struct i40e_pf
*pf
)
5132 BUG_ON(!test_bit(__I40E_SERVICE_SCHED
, &pf
->state
));
5134 /* flush memory to make sure state is correct before next watchog */
5135 smp_mb__before_atomic();
5136 clear_bit(__I40E_SERVICE_SCHED
, &pf
->state
);
5140 * i40e_get_cur_guaranteed_fd_count - Get the consumed guaranteed FD filters
5141 * @pf: board private structure
5143 int i40e_get_cur_guaranteed_fd_count(struct i40e_pf
*pf
)
5147 val
= rd32(&pf
->hw
, I40E_PFQF_FDSTAT
);
5148 fcnt_prog
= (val
& I40E_PFQF_FDSTAT_GUARANT_CNT_MASK
);
5153 * i40e_get_current_fd_count - Get the count of total FD filters programmed
5154 * @pf: board private structure
5156 int i40e_get_current_fd_count(struct i40e_pf
*pf
)
5159 val
= rd32(&pf
->hw
, I40E_PFQF_FDSTAT
);
5160 fcnt_prog
= (val
& I40E_PFQF_FDSTAT_GUARANT_CNT_MASK
) +
5161 ((val
& I40E_PFQF_FDSTAT_BEST_CNT_MASK
) >>
5162 I40E_PFQF_FDSTAT_BEST_CNT_SHIFT
);
5167 * i40e_fdir_check_and_reenable - Function to reenabe FD ATR or SB if disabled
5168 * @pf: board private structure
5170 void i40e_fdir_check_and_reenable(struct i40e_pf
*pf
)
5172 u32 fcnt_prog
, fcnt_avail
;
5174 if (test_bit(__I40E_FD_FLUSH_REQUESTED
, &pf
->state
))
5177 /* Check if, FD SB or ATR was auto disabled and if there is enough room
5180 fcnt_prog
= i40e_get_cur_guaranteed_fd_count(pf
);
5181 fcnt_avail
= pf
->fdir_pf_filter_count
;
5182 if ((fcnt_prog
< (fcnt_avail
- I40E_FDIR_BUFFER_HEAD_ROOM
)) ||
5183 (pf
->fd_add_err
== 0) ||
5184 (i40e_get_current_atr_cnt(pf
) < pf
->fd_atr_cnt
)) {
5185 if ((pf
->flags
& I40E_FLAG_FD_SB_ENABLED
) &&
5186 (pf
->auto_disable_flags
& I40E_FLAG_FD_SB_ENABLED
)) {
5187 pf
->auto_disable_flags
&= ~I40E_FLAG_FD_SB_ENABLED
;
5188 dev_info(&pf
->pdev
->dev
, "FD Sideband/ntuple is being enabled since we have space in the table now\n");
5191 /* Wait for some more space to be available to turn on ATR */
5192 if (fcnt_prog
< (fcnt_avail
- I40E_FDIR_BUFFER_HEAD_ROOM
* 2)) {
5193 if ((pf
->flags
& I40E_FLAG_FD_ATR_ENABLED
) &&
5194 (pf
->auto_disable_flags
& I40E_FLAG_FD_ATR_ENABLED
)) {
5195 pf
->auto_disable_flags
&= ~I40E_FLAG_FD_ATR_ENABLED
;
5196 dev_info(&pf
->pdev
->dev
, "ATR is being enabled since we have space in the table now\n");
5201 #define I40E_MIN_FD_FLUSH_INTERVAL 10
5203 * i40e_fdir_flush_and_replay - Function to flush all FD filters and replay SB
5204 * @pf: board private structure
5206 static void i40e_fdir_flush_and_replay(struct i40e_pf
*pf
)
5208 int flush_wait_retry
= 50;
5211 if (time_after(jiffies
, pf
->fd_flush_timestamp
+
5212 (I40E_MIN_FD_FLUSH_INTERVAL
* HZ
))) {
5213 set_bit(__I40E_FD_FLUSH_REQUESTED
, &pf
->state
);
5214 pf
->fd_flush_timestamp
= jiffies
;
5215 pf
->auto_disable_flags
|= I40E_FLAG_FD_SB_ENABLED
;
5216 pf
->flags
&= ~I40E_FLAG_FD_ATR_ENABLED
;
5217 /* flush all filters */
5218 wr32(&pf
->hw
, I40E_PFQF_CTL_1
,
5219 I40E_PFQF_CTL_1_CLEARFDTABLE_MASK
);
5220 i40e_flush(&pf
->hw
);
5224 /* Check FD flush status every 5-6msec */
5225 usleep_range(5000, 6000);
5226 reg
= rd32(&pf
->hw
, I40E_PFQF_CTL_1
);
5227 if (!(reg
& I40E_PFQF_CTL_1_CLEARFDTABLE_MASK
))
5229 } while (flush_wait_retry
--);
5230 if (reg
& I40E_PFQF_CTL_1_CLEARFDTABLE_MASK
) {
5231 dev_warn(&pf
->pdev
->dev
, "FD table did not flush, needs more time\n");
5233 /* replay sideband filters */
5234 i40e_fdir_filter_restore(pf
->vsi
[pf
->lan_vsi
]);
5236 pf
->flags
|= I40E_FLAG_FD_ATR_ENABLED
;
5237 pf
->auto_disable_flags
&= ~I40E_FLAG_FD_ATR_ENABLED
;
5238 pf
->auto_disable_flags
&= ~I40E_FLAG_FD_SB_ENABLED
;
5239 clear_bit(__I40E_FD_FLUSH_REQUESTED
, &pf
->state
);
5240 dev_info(&pf
->pdev
->dev
, "FD Filter table flushed and FD-SB replayed.\n");
5246 * i40e_get_current_atr_count - Get the count of total FD ATR filters programmed
5247 * @pf: board private structure
5249 int i40e_get_current_atr_cnt(struct i40e_pf
*pf
)
5251 return i40e_get_current_fd_count(pf
) - pf
->fdir_pf_active_filters
;
5254 /* We can see up to 256 filter programming desc in transit if the filters are
5255 * being applied really fast; before we see the first
5256 * filter miss error on Rx queue 0. Accumulating enough error messages before
5257 * reacting will make sure we don't cause flush too often.
5259 #define I40E_MAX_FD_PROGRAM_ERROR 256
5262 * i40e_fdir_reinit_subtask - Worker thread to reinit FDIR filter table
5263 * @pf: board private structure
5265 static void i40e_fdir_reinit_subtask(struct i40e_pf
*pf
)
5268 /* if interface is down do nothing */
5269 if (test_bit(__I40E_DOWN
, &pf
->state
))
5272 if ((pf
->fd_add_err
>= I40E_MAX_FD_PROGRAM_ERROR
) &&
5273 (i40e_get_current_atr_cnt(pf
) >= pf
->fd_atr_cnt
) &&
5274 (i40e_get_current_atr_cnt(pf
) > pf
->fdir_pf_filter_count
))
5275 i40e_fdir_flush_and_replay(pf
);
5277 i40e_fdir_check_and_reenable(pf
);
5282 * i40e_vsi_link_event - notify VSI of a link event
5283 * @vsi: vsi to be notified
5284 * @link_up: link up or down
5286 static void i40e_vsi_link_event(struct i40e_vsi
*vsi
, bool link_up
)
5288 if (!vsi
|| test_bit(__I40E_DOWN
, &vsi
->state
))
5291 switch (vsi
->type
) {
5296 if (!vsi
->netdev
|| !vsi
->netdev_registered
)
5300 netif_carrier_on(vsi
->netdev
);
5301 netif_tx_wake_all_queues(vsi
->netdev
);
5303 netif_carrier_off(vsi
->netdev
);
5304 netif_tx_stop_all_queues(vsi
->netdev
);
5308 case I40E_VSI_SRIOV
:
5311 case I40E_VSI_VMDQ2
:
5313 case I40E_VSI_MIRROR
:
5315 /* there is no notification for other VSIs */
5321 * i40e_veb_link_event - notify elements on the veb of a link event
5322 * @veb: veb to be notified
5323 * @link_up: link up or down
5325 static void i40e_veb_link_event(struct i40e_veb
*veb
, bool link_up
)
5330 if (!veb
|| !veb
->pf
)
5334 /* depth first... */
5335 for (i
= 0; i
< I40E_MAX_VEB
; i
++)
5336 if (pf
->veb
[i
] && (pf
->veb
[i
]->uplink_seid
== veb
->seid
))
5337 i40e_veb_link_event(pf
->veb
[i
], link_up
);
5339 /* ... now the local VSIs */
5340 for (i
= 0; i
< pf
->num_alloc_vsi
; i
++)
5341 if (pf
->vsi
[i
] && (pf
->vsi
[i
]->uplink_seid
== veb
->seid
))
5342 i40e_vsi_link_event(pf
->vsi
[i
], link_up
);
5346 * i40e_link_event - Update netif_carrier status
5347 * @pf: board private structure
5349 static void i40e_link_event(struct i40e_pf
*pf
)
5351 bool new_link
, old_link
;
5353 /* set this to force the get_link_status call to refresh state */
5354 pf
->hw
.phy
.get_link_info
= true;
5356 old_link
= (pf
->hw
.phy
.link_info_old
.link_info
& I40E_AQ_LINK_UP
);
5357 new_link
= i40e_get_link_status(&pf
->hw
);
5359 if (new_link
== old_link
&&
5360 new_link
== netif_carrier_ok(pf
->vsi
[pf
->lan_vsi
]->netdev
))
5362 if (!test_bit(__I40E_DOWN
, &pf
->vsi
[pf
->lan_vsi
]->state
))
5363 i40e_print_link_message(pf
->vsi
[pf
->lan_vsi
], new_link
);
5365 /* Notify the base of the switch tree connected to
5366 * the link. Floating VEBs are not notified.
5368 if (pf
->lan_veb
!= I40E_NO_VEB
&& pf
->veb
[pf
->lan_veb
])
5369 i40e_veb_link_event(pf
->veb
[pf
->lan_veb
], new_link
);
5371 i40e_vsi_link_event(pf
->vsi
[pf
->lan_vsi
], new_link
);
5374 i40e_vc_notify_link_state(pf
);
5376 if (pf
->flags
& I40E_FLAG_PTP
)
5377 i40e_ptp_set_increment(pf
);
5381 * i40e_check_hang_subtask - Check for hung queues and dropped interrupts
5382 * @pf: board private structure
5384 * Set the per-queue flags to request a check for stuck queues in the irq
5385 * clean functions, then force interrupts to be sure the irq clean is called.
5387 static void i40e_check_hang_subtask(struct i40e_pf
*pf
)
5391 /* If we're down or resetting, just bail */
5392 if (test_bit(__I40E_CONFIG_BUSY
, &pf
->state
))
5395 /* for each VSI/netdev
5397 * set the check flag
5399 * force an interrupt
5401 for (v
= 0; v
< pf
->num_alloc_vsi
; v
++) {
5402 struct i40e_vsi
*vsi
= pf
->vsi
[v
];
5406 test_bit(__I40E_DOWN
, &vsi
->state
) ||
5407 (vsi
->netdev
&& !netif_carrier_ok(vsi
->netdev
)))
5410 for (i
= 0; i
< vsi
->num_queue_pairs
; i
++) {
5411 set_check_for_tx_hang(vsi
->tx_rings
[i
]);
5412 if (test_bit(__I40E_HANG_CHECK_ARMED
,
5413 &vsi
->tx_rings
[i
]->state
))
5418 if (!(pf
->flags
& I40E_FLAG_MSIX_ENABLED
)) {
5419 wr32(&vsi
->back
->hw
, I40E_PFINT_DYN_CTL0
,
5420 (I40E_PFINT_DYN_CTL0_INTENA_MASK
|
5421 I40E_PFINT_DYN_CTL0_SWINT_TRIG_MASK
));
5423 u16 vec
= vsi
->base_vector
- 1;
5424 u32 val
= (I40E_PFINT_DYN_CTLN_INTENA_MASK
|
5425 I40E_PFINT_DYN_CTLN_SWINT_TRIG_MASK
);
5426 for (i
= 0; i
< vsi
->num_q_vectors
; i
++, vec
++)
5427 wr32(&vsi
->back
->hw
,
5428 I40E_PFINT_DYN_CTLN(vec
), val
);
5430 i40e_flush(&vsi
->back
->hw
);
5436 * i40e_watchdog_subtask - Check and bring link up
5437 * @pf: board private structure
5439 static void i40e_watchdog_subtask(struct i40e_pf
*pf
)
5443 /* if interface is down do nothing */
5444 if (test_bit(__I40E_DOWN
, &pf
->state
) ||
5445 test_bit(__I40E_CONFIG_BUSY
, &pf
->state
))
5448 /* Update the stats for active netdevs so the network stack
5449 * can look at updated numbers whenever it cares to
5451 for (i
= 0; i
< pf
->num_alloc_vsi
; i
++)
5452 if (pf
->vsi
[i
] && pf
->vsi
[i
]->netdev
)
5453 i40e_update_stats(pf
->vsi
[i
]);
5455 /* Update the stats for the active switching components */
5456 for (i
= 0; i
< I40E_MAX_VEB
; i
++)
5458 i40e_update_veb_stats(pf
->veb
[i
]);
5460 i40e_ptp_rx_hang(pf
->vsi
[pf
->lan_vsi
]);
5464 * i40e_reset_subtask - Set up for resetting the device and driver
5465 * @pf: board private structure
5467 static void i40e_reset_subtask(struct i40e_pf
*pf
)
5469 u32 reset_flags
= 0;
5472 if (test_bit(__I40E_REINIT_REQUESTED
, &pf
->state
)) {
5473 reset_flags
|= (1 << __I40E_REINIT_REQUESTED
);
5474 clear_bit(__I40E_REINIT_REQUESTED
, &pf
->state
);
5476 if (test_bit(__I40E_PF_RESET_REQUESTED
, &pf
->state
)) {
5477 reset_flags
|= (1 << __I40E_PF_RESET_REQUESTED
);
5478 clear_bit(__I40E_PF_RESET_REQUESTED
, &pf
->state
);
5480 if (test_bit(__I40E_CORE_RESET_REQUESTED
, &pf
->state
)) {
5481 reset_flags
|= (1 << __I40E_CORE_RESET_REQUESTED
);
5482 clear_bit(__I40E_CORE_RESET_REQUESTED
, &pf
->state
);
5484 if (test_bit(__I40E_GLOBAL_RESET_REQUESTED
, &pf
->state
)) {
5485 reset_flags
|= (1 << __I40E_GLOBAL_RESET_REQUESTED
);
5486 clear_bit(__I40E_GLOBAL_RESET_REQUESTED
, &pf
->state
);
5488 if (test_bit(__I40E_DOWN_REQUESTED
, &pf
->state
)) {
5489 reset_flags
|= (1 << __I40E_DOWN_REQUESTED
);
5490 clear_bit(__I40E_DOWN_REQUESTED
, &pf
->state
);
5493 /* If there's a recovery already waiting, it takes
5494 * precedence before starting a new reset sequence.
5496 if (test_bit(__I40E_RESET_INTR_RECEIVED
, &pf
->state
)) {
5497 i40e_handle_reset_warning(pf
);
5501 /* If we're already down or resetting, just bail */
5503 !test_bit(__I40E_DOWN
, &pf
->state
) &&
5504 !test_bit(__I40E_CONFIG_BUSY
, &pf
->state
))
5505 i40e_do_reset(pf
, reset_flags
);
5512 * i40e_handle_link_event - Handle link event
5513 * @pf: board private structure
5514 * @e: event info posted on ARQ
5516 static void i40e_handle_link_event(struct i40e_pf
*pf
,
5517 struct i40e_arq_event_info
*e
)
5519 struct i40e_hw
*hw
= &pf
->hw
;
5520 struct i40e_aqc_get_link_status
*status
=
5521 (struct i40e_aqc_get_link_status
*)&e
->desc
.params
.raw
;
5522 struct i40e_link_status
*hw_link_info
= &hw
->phy
.link_info
;
5524 /* save off old link status information */
5525 memcpy(&pf
->hw
.phy
.link_info_old
, hw_link_info
,
5526 sizeof(pf
->hw
.phy
.link_info_old
));
5528 /* Do a new status request to re-enable LSE reporting
5529 * and load new status information into the hw struct
5530 * This completely ignores any state information
5531 * in the ARQ event info, instead choosing to always
5532 * issue the AQ update link status command.
5534 i40e_link_event(pf
);
5536 /* check for unqualified module, if link is down */
5537 if ((status
->link_info
& I40E_AQ_MEDIA_AVAILABLE
) &&
5538 (!(status
->an_info
& I40E_AQ_QUALIFIED_MODULE
)) &&
5539 (!(status
->link_info
& I40E_AQ_LINK_UP
)))
5540 dev_err(&pf
->pdev
->dev
,
5541 "The driver failed to link because an unqualified module was detected.\n");
5545 * i40e_clean_adminq_subtask - Clean the AdminQ rings
5546 * @pf: board private structure
5548 static void i40e_clean_adminq_subtask(struct i40e_pf
*pf
)
5550 struct i40e_arq_event_info event
;
5551 struct i40e_hw
*hw
= &pf
->hw
;
5558 /* Do not run clean AQ when PF reset fails */
5559 if (test_bit(__I40E_RESET_FAILED
, &pf
->state
))
5562 /* check for error indications */
5563 val
= rd32(&pf
->hw
, pf
->hw
.aq
.arq
.len
);
5565 if (val
& I40E_PF_ARQLEN_ARQVFE_MASK
) {
5566 dev_info(&pf
->pdev
->dev
, "ARQ VF Error detected\n");
5567 val
&= ~I40E_PF_ARQLEN_ARQVFE_MASK
;
5569 if (val
& I40E_PF_ARQLEN_ARQOVFL_MASK
) {
5570 dev_info(&pf
->pdev
->dev
, "ARQ Overflow Error detected\n");
5571 val
&= ~I40E_PF_ARQLEN_ARQOVFL_MASK
;
5573 if (val
& I40E_PF_ARQLEN_ARQCRIT_MASK
) {
5574 dev_info(&pf
->pdev
->dev
, "ARQ Critical Error detected\n");
5575 val
&= ~I40E_PF_ARQLEN_ARQCRIT_MASK
;
5578 wr32(&pf
->hw
, pf
->hw
.aq
.arq
.len
, val
);
5580 val
= rd32(&pf
->hw
, pf
->hw
.aq
.asq
.len
);
5582 if (val
& I40E_PF_ATQLEN_ATQVFE_MASK
) {
5583 dev_info(&pf
->pdev
->dev
, "ASQ VF Error detected\n");
5584 val
&= ~I40E_PF_ATQLEN_ATQVFE_MASK
;
5586 if (val
& I40E_PF_ATQLEN_ATQOVFL_MASK
) {
5587 dev_info(&pf
->pdev
->dev
, "ASQ Overflow Error detected\n");
5588 val
&= ~I40E_PF_ATQLEN_ATQOVFL_MASK
;
5590 if (val
& I40E_PF_ATQLEN_ATQCRIT_MASK
) {
5591 dev_info(&pf
->pdev
->dev
, "ASQ Critical Error detected\n");
5592 val
&= ~I40E_PF_ATQLEN_ATQCRIT_MASK
;
5595 wr32(&pf
->hw
, pf
->hw
.aq
.asq
.len
, val
);
5597 event
.msg_size
= I40E_MAX_AQ_BUF_SIZE
;
5598 event
.msg_buf
= kzalloc(event
.msg_size
, GFP_KERNEL
);
5603 event
.msg_size
= I40E_MAX_AQ_BUF_SIZE
; /* reinit each time */
5604 ret
= i40e_clean_arq_element(hw
, &event
, &pending
);
5605 if (ret
== I40E_ERR_ADMIN_QUEUE_NO_WORK
)
5608 dev_info(&pf
->pdev
->dev
, "ARQ event error %d\n", ret
);
5612 opcode
= le16_to_cpu(event
.desc
.opcode
);
5615 case i40e_aqc_opc_get_link_status
:
5616 i40e_handle_link_event(pf
, &event
);
5618 case i40e_aqc_opc_send_msg_to_pf
:
5619 ret
= i40e_vc_process_vf_msg(pf
,
5620 le16_to_cpu(event
.desc
.retval
),
5621 le32_to_cpu(event
.desc
.cookie_high
),
5622 le32_to_cpu(event
.desc
.cookie_low
),
5626 case i40e_aqc_opc_lldp_update_mib
:
5627 dev_dbg(&pf
->pdev
->dev
, "ARQ: Update LLDP MIB event received\n");
5628 #ifdef CONFIG_I40E_DCB
5630 ret
= i40e_handle_lldp_event(pf
, &event
);
5632 #endif /* CONFIG_I40E_DCB */
5634 case i40e_aqc_opc_event_lan_overflow
:
5635 dev_dbg(&pf
->pdev
->dev
, "ARQ LAN queue overflow event received\n");
5636 i40e_handle_lan_overflow_event(pf
, &event
);
5638 case i40e_aqc_opc_send_msg_to_peer
:
5639 dev_info(&pf
->pdev
->dev
, "ARQ: Msg from other pf\n");
5642 dev_info(&pf
->pdev
->dev
,
5643 "ARQ Error: Unknown event 0x%04x received\n",
5647 } while (pending
&& (i
++ < pf
->adminq_work_limit
));
5649 clear_bit(__I40E_ADMINQ_EVENT_PENDING
, &pf
->state
);
5650 /* re-enable Admin queue interrupt cause */
5651 val
= rd32(hw
, I40E_PFINT_ICR0_ENA
);
5652 val
|= I40E_PFINT_ICR0_ENA_ADMINQ_MASK
;
5653 wr32(hw
, I40E_PFINT_ICR0_ENA
, val
);
5656 kfree(event
.msg_buf
);
5660 * i40e_verify_eeprom - make sure eeprom is good to use
5661 * @pf: board private structure
5663 static void i40e_verify_eeprom(struct i40e_pf
*pf
)
5667 err
= i40e_diag_eeprom_test(&pf
->hw
);
5669 /* retry in case of garbage read */
5670 err
= i40e_diag_eeprom_test(&pf
->hw
);
5672 dev_info(&pf
->pdev
->dev
, "eeprom check failed (%d), Tx/Rx traffic disabled\n",
5674 set_bit(__I40E_BAD_EEPROM
, &pf
->state
);
5678 if (!err
&& test_bit(__I40E_BAD_EEPROM
, &pf
->state
)) {
5679 dev_info(&pf
->pdev
->dev
, "eeprom check passed, Tx/Rx traffic enabled\n");
5680 clear_bit(__I40E_BAD_EEPROM
, &pf
->state
);
5685 * i40e_reconstitute_veb - rebuild the VEB and anything connected to it
5686 * @veb: pointer to the VEB instance
5688 * This is a recursive function that first builds the attached VSIs then
5689 * recurses in to build the next layer of VEB. We track the connections
5690 * through our own index numbers because the seid's from the HW could
5691 * change across the reset.
5693 static int i40e_reconstitute_veb(struct i40e_veb
*veb
)
5695 struct i40e_vsi
*ctl_vsi
= NULL
;
5696 struct i40e_pf
*pf
= veb
->pf
;
5700 /* build VSI that owns this VEB, temporarily attached to base VEB */
5701 for (v
= 0; v
< pf
->num_alloc_vsi
&& !ctl_vsi
; v
++) {
5703 pf
->vsi
[v
]->veb_idx
== veb
->idx
&&
5704 pf
->vsi
[v
]->flags
& I40E_VSI_FLAG_VEB_OWNER
) {
5705 ctl_vsi
= pf
->vsi
[v
];
5710 dev_info(&pf
->pdev
->dev
,
5711 "missing owner VSI for veb_idx %d\n", veb
->idx
);
5713 goto end_reconstitute
;
5715 if (ctl_vsi
!= pf
->vsi
[pf
->lan_vsi
])
5716 ctl_vsi
->uplink_seid
= pf
->vsi
[pf
->lan_vsi
]->uplink_seid
;
5717 ret
= i40e_add_vsi(ctl_vsi
);
5719 dev_info(&pf
->pdev
->dev
,
5720 "rebuild of owner VSI failed: %d\n", ret
);
5721 goto end_reconstitute
;
5723 i40e_vsi_reset_stats(ctl_vsi
);
5725 /* create the VEB in the switch and move the VSI onto the VEB */
5726 ret
= i40e_add_veb(veb
, ctl_vsi
);
5728 goto end_reconstitute
;
5730 /* create the remaining VSIs attached to this VEB */
5731 for (v
= 0; v
< pf
->num_alloc_vsi
; v
++) {
5732 if (!pf
->vsi
[v
] || pf
->vsi
[v
] == ctl_vsi
)
5735 if (pf
->vsi
[v
]->veb_idx
== veb
->idx
) {
5736 struct i40e_vsi
*vsi
= pf
->vsi
[v
];
5737 vsi
->uplink_seid
= veb
->seid
;
5738 ret
= i40e_add_vsi(vsi
);
5740 dev_info(&pf
->pdev
->dev
,
5741 "rebuild of vsi_idx %d failed: %d\n",
5743 goto end_reconstitute
;
5745 i40e_vsi_reset_stats(vsi
);
5749 /* create any VEBs attached to this VEB - RECURSION */
5750 for (veb_idx
= 0; veb_idx
< I40E_MAX_VEB
; veb_idx
++) {
5751 if (pf
->veb
[veb_idx
] && pf
->veb
[veb_idx
]->veb_idx
== veb
->idx
) {
5752 pf
->veb
[veb_idx
]->uplink_seid
= veb
->seid
;
5753 ret
= i40e_reconstitute_veb(pf
->veb
[veb_idx
]);
5764 * i40e_get_capabilities - get info about the HW
5765 * @pf: the PF struct
5767 static int i40e_get_capabilities(struct i40e_pf
*pf
)
5769 struct i40e_aqc_list_capabilities_element_resp
*cap_buf
;
5774 buf_len
= 40 * sizeof(struct i40e_aqc_list_capabilities_element_resp
);
5776 cap_buf
= kzalloc(buf_len
, GFP_KERNEL
);
5780 /* this loads the data into the hw struct for us */
5781 err
= i40e_aq_discover_capabilities(&pf
->hw
, cap_buf
, buf_len
,
5783 i40e_aqc_opc_list_func_capabilities
,
5785 /* data loaded, buffer no longer needed */
5788 if (pf
->hw
.aq
.asq_last_status
== I40E_AQ_RC_ENOMEM
) {
5789 /* retry with a larger buffer */
5790 buf_len
= data_size
;
5791 } else if (pf
->hw
.aq
.asq_last_status
!= I40E_AQ_RC_OK
) {
5792 dev_info(&pf
->pdev
->dev
,
5793 "capability discovery failed: aq=%d\n",
5794 pf
->hw
.aq
.asq_last_status
);
5799 if (((pf
->hw
.aq
.fw_maj_ver
== 2) && (pf
->hw
.aq
.fw_min_ver
< 22)) ||
5800 (pf
->hw
.aq
.fw_maj_ver
< 2)) {
5801 pf
->hw
.func_caps
.num_msix_vectors
++;
5802 pf
->hw
.func_caps
.num_msix_vectors_vf
++;
5805 if (pf
->hw
.debug_mask
& I40E_DEBUG_USER
)
5806 dev_info(&pf
->pdev
->dev
,
5807 "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",
5808 pf
->hw
.pf_id
, pf
->hw
.func_caps
.num_vfs
,
5809 pf
->hw
.func_caps
.num_msix_vectors
,
5810 pf
->hw
.func_caps
.num_msix_vectors_vf
,
5811 pf
->hw
.func_caps
.fd_filters_guaranteed
,
5812 pf
->hw
.func_caps
.fd_filters_best_effort
,
5813 pf
->hw
.func_caps
.num_tx_qp
,
5814 pf
->hw
.func_caps
.num_vsis
);
5816 #define DEF_NUM_VSI (1 + (pf->hw.func_caps.fcoe ? 1 : 0) \
5817 + pf->hw.func_caps.num_vfs)
5818 if (pf
->hw
.revision_id
== 0 && (DEF_NUM_VSI
> pf
->hw
.func_caps
.num_vsis
)) {
5819 dev_info(&pf
->pdev
->dev
,
5820 "got num_vsis %d, setting num_vsis to %d\n",
5821 pf
->hw
.func_caps
.num_vsis
, DEF_NUM_VSI
);
5822 pf
->hw
.func_caps
.num_vsis
= DEF_NUM_VSI
;
5828 static int i40e_vsi_clear(struct i40e_vsi
*vsi
);
5831 * i40e_fdir_sb_setup - initialize the Flow Director resources for Sideband
5832 * @pf: board private structure
5834 static void i40e_fdir_sb_setup(struct i40e_pf
*pf
)
5836 struct i40e_vsi
*vsi
;
5839 /* quick workaround for an NVM issue that leaves a critical register
5842 if (!rd32(&pf
->hw
, I40E_GLQF_HKEY(0))) {
5843 static const u32 hkey
[] = {
5844 0xe640d33f, 0xcdfe98ab, 0x73fa7161, 0x0d7a7d36,
5845 0xeacb7d61, 0xaa4f05b6, 0x9c5c89ed, 0xfc425ddb,
5846 0xa4654832, 0xfc7461d4, 0x8f827619, 0xf5c63c21,
5849 for (i
= 0; i
<= I40E_GLQF_HKEY_MAX_INDEX
; i
++)
5850 wr32(&pf
->hw
, I40E_GLQF_HKEY(i
), hkey
[i
]);
5853 if (!(pf
->flags
& I40E_FLAG_FD_SB_ENABLED
))
5856 /* find existing VSI and see if it needs configuring */
5858 for (i
= 0; i
< pf
->num_alloc_vsi
; i
++) {
5859 if (pf
->vsi
[i
] && pf
->vsi
[i
]->type
== I40E_VSI_FDIR
) {
5865 /* create a new VSI if none exists */
5867 vsi
= i40e_vsi_setup(pf
, I40E_VSI_FDIR
,
5868 pf
->vsi
[pf
->lan_vsi
]->seid
, 0);
5870 dev_info(&pf
->pdev
->dev
, "Couldn't create FDir VSI\n");
5871 pf
->flags
&= ~I40E_FLAG_FD_SB_ENABLED
;
5876 i40e_vsi_setup_irqhandler(vsi
, i40e_fdir_clean_ring
);
5880 * i40e_fdir_teardown - release the Flow Director resources
5881 * @pf: board private structure
5883 static void i40e_fdir_teardown(struct i40e_pf
*pf
)
5887 i40e_fdir_filter_exit(pf
);
5888 for (i
= 0; i
< pf
->num_alloc_vsi
; i
++) {
5889 if (pf
->vsi
[i
] && pf
->vsi
[i
]->type
== I40E_VSI_FDIR
) {
5890 i40e_vsi_release(pf
->vsi
[i
]);
5897 * i40e_prep_for_reset - prep for the core to reset
5898 * @pf: board private structure
5900 * Close up the VFs and other things in prep for pf Reset.
5902 static void i40e_prep_for_reset(struct i40e_pf
*pf
)
5904 struct i40e_hw
*hw
= &pf
->hw
;
5905 i40e_status ret
= 0;
5908 clear_bit(__I40E_RESET_INTR_RECEIVED
, &pf
->state
);
5909 if (test_and_set_bit(__I40E_RESET_RECOVERY_PENDING
, &pf
->state
))
5912 dev_dbg(&pf
->pdev
->dev
, "Tearing down internal switch for reset\n");
5914 /* quiesce the VSIs and their queues that are not already DOWN */
5915 i40e_pf_quiesce_all_vsi(pf
);
5917 for (v
= 0; v
< pf
->num_alloc_vsi
; v
++) {
5919 pf
->vsi
[v
]->seid
= 0;
5922 i40e_shutdown_adminq(&pf
->hw
);
5924 /* call shutdown HMC */
5925 if (hw
->hmc
.hmc_obj
) {
5926 ret
= i40e_shutdown_lan_hmc(hw
);
5928 dev_warn(&pf
->pdev
->dev
,
5929 "shutdown_lan_hmc failed: %d\n", ret
);
5934 * i40e_send_version - update firmware with driver version
5937 static void i40e_send_version(struct i40e_pf
*pf
)
5939 struct i40e_driver_version dv
;
5941 dv
.major_version
= DRV_VERSION_MAJOR
;
5942 dv
.minor_version
= DRV_VERSION_MINOR
;
5943 dv
.build_version
= DRV_VERSION_BUILD
;
5944 dv
.subbuild_version
= 0;
5945 strlcpy(dv
.driver_string
, DRV_VERSION
, sizeof(dv
.driver_string
));
5946 i40e_aq_send_driver_version(&pf
->hw
, &dv
, NULL
);
5950 * i40e_reset_and_rebuild - reset and rebuild using a saved config
5951 * @pf: board private structure
5952 * @reinit: if the Main VSI needs to re-initialized.
5954 static void i40e_reset_and_rebuild(struct i40e_pf
*pf
, bool reinit
)
5956 struct i40e_hw
*hw
= &pf
->hw
;
5957 u8 set_fc_aq_fail
= 0;
5961 /* Now we wait for GRST to settle out.
5962 * We don't have to delete the VEBs or VSIs from the hw switch
5963 * because the reset will make them disappear.
5965 ret
= i40e_pf_reset(hw
);
5967 dev_info(&pf
->pdev
->dev
, "PF reset failed, %d\n", ret
);
5968 set_bit(__I40E_RESET_FAILED
, &pf
->state
);
5969 goto clear_recovery
;
5973 if (test_bit(__I40E_DOWN
, &pf
->state
))
5974 goto clear_recovery
;
5975 dev_dbg(&pf
->pdev
->dev
, "Rebuilding internal switch\n");
5977 /* rebuild the basics for the AdminQ, HMC, and initial HW switch */
5978 ret
= i40e_init_adminq(&pf
->hw
);
5980 dev_info(&pf
->pdev
->dev
, "Rebuild AdminQ failed, %d\n", ret
);
5981 goto clear_recovery
;
5984 /* re-verify the eeprom if we just had an EMP reset */
5985 if (test_bit(__I40E_EMP_RESET_REQUESTED
, &pf
->state
)) {
5986 clear_bit(__I40E_EMP_RESET_REQUESTED
, &pf
->state
);
5987 i40e_verify_eeprom(pf
);
5990 i40e_clear_pxe_mode(hw
);
5991 ret
= i40e_get_capabilities(pf
);
5993 dev_info(&pf
->pdev
->dev
, "i40e_get_capabilities failed, %d\n",
5995 goto end_core_reset
;
5998 ret
= i40e_init_lan_hmc(hw
, hw
->func_caps
.num_tx_qp
,
5999 hw
->func_caps
.num_rx_qp
,
6000 pf
->fcoe_hmc_cntx_num
, pf
->fcoe_hmc_filt_num
);
6002 dev_info(&pf
->pdev
->dev
, "init_lan_hmc failed: %d\n", ret
);
6003 goto end_core_reset
;
6005 ret
= i40e_configure_lan_hmc(hw
, I40E_HMC_MODEL_DIRECT_ONLY
);
6007 dev_info(&pf
->pdev
->dev
, "configure_lan_hmc failed: %d\n", ret
);
6008 goto end_core_reset
;
6011 #ifdef CONFIG_I40E_DCB
6012 ret
= i40e_init_pf_dcb(pf
);
6014 dev_info(&pf
->pdev
->dev
, "init_pf_dcb failed: %d\n", ret
);
6015 goto end_core_reset
;
6017 #endif /* CONFIG_I40E_DCB */
6019 ret
= i40e_init_pf_fcoe(pf
);
6021 dev_info(&pf
->pdev
->dev
, "init_pf_fcoe failed: %d\n", ret
);
6024 /* do basic switch setup */
6025 ret
= i40e_setup_pf_switch(pf
, reinit
);
6027 goto end_core_reset
;
6029 /* driver is only interested in link up/down and module qualification
6030 * reports from firmware
6032 ret
= i40e_aq_set_phy_int_mask(&pf
->hw
,
6033 I40E_AQ_EVENT_LINK_UPDOWN
|
6034 I40E_AQ_EVENT_MODULE_QUAL_FAIL
, NULL
);
6036 dev_info(&pf
->pdev
->dev
, "set phy mask fail, aq_err %d\n", ret
);
6038 /* make sure our flow control settings are restored */
6039 ret
= i40e_set_fc(&pf
->hw
, &set_fc_aq_fail
, true);
6041 dev_info(&pf
->pdev
->dev
, "set fc fail, aq_err %d\n", ret
);
6043 /* Rebuild the VSIs and VEBs that existed before reset.
6044 * They are still in our local switch element arrays, so only
6045 * need to rebuild the switch model in the HW.
6047 * If there were VEBs but the reconstitution failed, we'll try
6048 * try to recover minimal use by getting the basic PF VSI working.
6050 if (pf
->vsi
[pf
->lan_vsi
]->uplink_seid
!= pf
->mac_seid
) {
6051 dev_dbg(&pf
->pdev
->dev
, "attempting to rebuild switch\n");
6052 /* find the one VEB connected to the MAC, and find orphans */
6053 for (v
= 0; v
< I40E_MAX_VEB
; v
++) {
6057 if (pf
->veb
[v
]->uplink_seid
== pf
->mac_seid
||
6058 pf
->veb
[v
]->uplink_seid
== 0) {
6059 ret
= i40e_reconstitute_veb(pf
->veb
[v
]);
6064 /* If Main VEB failed, we're in deep doodoo,
6065 * so give up rebuilding the switch and set up
6066 * for minimal rebuild of PF VSI.
6067 * If orphan failed, we'll report the error
6068 * but try to keep going.
6070 if (pf
->veb
[v
]->uplink_seid
== pf
->mac_seid
) {
6071 dev_info(&pf
->pdev
->dev
,
6072 "rebuild of switch failed: %d, will try to set up simple PF connection\n",
6074 pf
->vsi
[pf
->lan_vsi
]->uplink_seid
6077 } else if (pf
->veb
[v
]->uplink_seid
== 0) {
6078 dev_info(&pf
->pdev
->dev
,
6079 "rebuild of orphan VEB failed: %d\n",
6086 if (pf
->vsi
[pf
->lan_vsi
]->uplink_seid
== pf
->mac_seid
) {
6087 dev_dbg(&pf
->pdev
->dev
, "attempting to rebuild PF VSI\n");
6088 /* no VEB, so rebuild only the Main VSI */
6089 ret
= i40e_add_vsi(pf
->vsi
[pf
->lan_vsi
]);
6091 dev_info(&pf
->pdev
->dev
,
6092 "rebuild of Main VSI failed: %d\n", ret
);
6093 goto end_core_reset
;
6098 ret
= i40e_aq_set_link_restart_an(&pf
->hw
, true, NULL
);
6100 dev_info(&pf
->pdev
->dev
, "link restart failed, aq_err=%d\n",
6101 pf
->hw
.aq
.asq_last_status
);
6104 /* reinit the misc interrupt */
6105 if (pf
->flags
& I40E_FLAG_MSIX_ENABLED
)
6106 ret
= i40e_setup_misc_vector(pf
);
6108 /* restart the VSIs that were rebuilt and running before the reset */
6109 i40e_pf_unquiesce_all_vsi(pf
);
6111 if (pf
->num_alloc_vfs
) {
6112 for (v
= 0; v
< pf
->num_alloc_vfs
; v
++)
6113 i40e_reset_vf(&pf
->vf
[v
], true);
6116 /* tell the firmware that we're starting */
6117 i40e_send_version(pf
);
6120 clear_bit(__I40E_RESET_FAILED
, &pf
->state
);
6122 clear_bit(__I40E_RESET_RECOVERY_PENDING
, &pf
->state
);
6126 * i40e_handle_reset_warning - prep for the pf to reset, reset and rebuild
6127 * @pf: board private structure
6129 * Close up the VFs and other things in prep for a Core Reset,
6130 * then get ready to rebuild the world.
6132 static void i40e_handle_reset_warning(struct i40e_pf
*pf
)
6134 i40e_prep_for_reset(pf
);
6135 i40e_reset_and_rebuild(pf
, false);
6139 * i40e_handle_mdd_event
6140 * @pf: pointer to the pf structure
6142 * Called from the MDD irq handler to identify possibly malicious vfs
6144 static void i40e_handle_mdd_event(struct i40e_pf
*pf
)
6146 struct i40e_hw
*hw
= &pf
->hw
;
6147 bool mdd_detected
= false;
6148 bool pf_mdd_detected
= false;
6153 if (!test_bit(__I40E_MDD_EVENT_PENDING
, &pf
->state
))
6156 /* find what triggered the MDD event */
6157 reg
= rd32(hw
, I40E_GL_MDET_TX
);
6158 if (reg
& I40E_GL_MDET_TX_VALID_MASK
) {
6159 u8 pf_num
= (reg
& I40E_GL_MDET_TX_PF_NUM_MASK
) >>
6160 I40E_GL_MDET_TX_PF_NUM_SHIFT
;
6161 u8 vf_num
= (reg
& I40E_GL_MDET_TX_VF_NUM_MASK
) >>
6162 I40E_GL_MDET_TX_VF_NUM_SHIFT
;
6163 u8 event
= (reg
& I40E_GL_MDET_TX_EVENT_SHIFT
) >>
6164 I40E_GL_MDET_TX_EVENT_SHIFT
;
6165 u8 queue
= (reg
& I40E_GL_MDET_TX_QUEUE_MASK
) >>
6166 I40E_GL_MDET_TX_QUEUE_SHIFT
;
6167 if (netif_msg_tx_err(pf
))
6168 dev_info(&pf
->pdev
->dev
, "Malicious Driver Detection event 0x%02x on TX queue %d pf number 0x%02x vf number 0x%02x\n",
6169 event
, queue
, pf_num
, vf_num
);
6170 wr32(hw
, I40E_GL_MDET_TX
, 0xffffffff);
6171 mdd_detected
= true;
6173 reg
= rd32(hw
, I40E_GL_MDET_RX
);
6174 if (reg
& I40E_GL_MDET_RX_VALID_MASK
) {
6175 u8 func
= (reg
& I40E_GL_MDET_RX_FUNCTION_MASK
) >>
6176 I40E_GL_MDET_RX_FUNCTION_SHIFT
;
6177 u8 event
= (reg
& I40E_GL_MDET_RX_EVENT_SHIFT
) >>
6178 I40E_GL_MDET_RX_EVENT_SHIFT
;
6179 u8 queue
= (reg
& I40E_GL_MDET_RX_QUEUE_MASK
) >>
6180 I40E_GL_MDET_RX_QUEUE_SHIFT
;
6181 if (netif_msg_rx_err(pf
))
6182 dev_info(&pf
->pdev
->dev
, "Malicious Driver Detection event 0x%02x on RX queue %d of function 0x%02x\n",
6183 event
, queue
, func
);
6184 wr32(hw
, I40E_GL_MDET_RX
, 0xffffffff);
6185 mdd_detected
= true;
6189 reg
= rd32(hw
, I40E_PF_MDET_TX
);
6190 if (reg
& I40E_PF_MDET_TX_VALID_MASK
) {
6191 wr32(hw
, I40E_PF_MDET_TX
, 0xFFFF);
6192 dev_info(&pf
->pdev
->dev
, "TX driver issue detected, PF reset issued\n");
6193 pf_mdd_detected
= true;
6195 reg
= rd32(hw
, I40E_PF_MDET_RX
);
6196 if (reg
& I40E_PF_MDET_RX_VALID_MASK
) {
6197 wr32(hw
, I40E_PF_MDET_RX
, 0xFFFF);
6198 dev_info(&pf
->pdev
->dev
, "RX driver issue detected, PF reset issued\n");
6199 pf_mdd_detected
= true;
6201 /* Queue belongs to the PF, initiate a reset */
6202 if (pf_mdd_detected
) {
6203 set_bit(__I40E_PF_RESET_REQUESTED
, &pf
->state
);
6204 i40e_service_event_schedule(pf
);
6208 /* see if one of the VFs needs its hand slapped */
6209 for (i
= 0; i
< pf
->num_alloc_vfs
&& mdd_detected
; i
++) {
6211 reg
= rd32(hw
, I40E_VP_MDET_TX(i
));
6212 if (reg
& I40E_VP_MDET_TX_VALID_MASK
) {
6213 wr32(hw
, I40E_VP_MDET_TX(i
), 0xFFFF);
6214 vf
->num_mdd_events
++;
6215 dev_info(&pf
->pdev
->dev
, "TX driver issue detected on VF %d\n",
6219 reg
= rd32(hw
, I40E_VP_MDET_RX(i
));
6220 if (reg
& I40E_VP_MDET_RX_VALID_MASK
) {
6221 wr32(hw
, I40E_VP_MDET_RX(i
), 0xFFFF);
6222 vf
->num_mdd_events
++;
6223 dev_info(&pf
->pdev
->dev
, "RX driver issue detected on VF %d\n",
6227 if (vf
->num_mdd_events
> I40E_DEFAULT_NUM_MDD_EVENTS_ALLOWED
) {
6228 dev_info(&pf
->pdev
->dev
,
6229 "Too many MDD events on VF %d, disabled\n", i
);
6230 dev_info(&pf
->pdev
->dev
,
6231 "Use PF Control I/F to re-enable the VF\n");
6232 set_bit(I40E_VF_STAT_DISABLED
, &vf
->vf_states
);
6236 /* re-enable mdd interrupt cause */
6237 clear_bit(__I40E_MDD_EVENT_PENDING
, &pf
->state
);
6238 reg
= rd32(hw
, I40E_PFINT_ICR0_ENA
);
6239 reg
|= I40E_PFINT_ICR0_ENA_MAL_DETECT_MASK
;
6240 wr32(hw
, I40E_PFINT_ICR0_ENA
, reg
);
6244 #ifdef CONFIG_I40E_VXLAN
6246 * i40e_sync_vxlan_filters_subtask - Sync the VSI filter list with HW
6247 * @pf: board private structure
6249 static void i40e_sync_vxlan_filters_subtask(struct i40e_pf
*pf
)
6251 struct i40e_hw
*hw
= &pf
->hw
;
6257 if (!(pf
->flags
& I40E_FLAG_VXLAN_FILTER_SYNC
))
6260 pf
->flags
&= ~I40E_FLAG_VXLAN_FILTER_SYNC
;
6262 for (i
= 0; i
< I40E_MAX_PF_UDP_OFFLOAD_PORTS
; i
++) {
6263 if (pf
->pending_vxlan_bitmap
& (1 << i
)) {
6264 pf
->pending_vxlan_bitmap
&= ~(1 << i
);
6265 port
= pf
->vxlan_ports
[i
];
6267 i40e_aq_add_udp_tunnel(hw
, ntohs(port
),
6268 I40E_AQC_TUNNEL_TYPE_VXLAN
,
6269 &filter_index
, NULL
)
6270 : i40e_aq_del_udp_tunnel(hw
, i
, NULL
);
6273 dev_info(&pf
->pdev
->dev
, "Failed to execute AQ command for %s port %d with index %d\n",
6274 port
? "adding" : "deleting",
6275 ntohs(port
), port
? i
: i
);
6277 pf
->vxlan_ports
[i
] = 0;
6279 dev_info(&pf
->pdev
->dev
, "%s port %d with AQ command with index %d\n",
6280 port
? "Added" : "Deleted",
6281 ntohs(port
), port
? i
: filter_index
);
6289 * i40e_service_task - Run the driver's async subtasks
6290 * @work: pointer to work_struct containing our data
6292 static void i40e_service_task(struct work_struct
*work
)
6294 struct i40e_pf
*pf
= container_of(work
,
6297 unsigned long start_time
= jiffies
;
6299 /* don't bother with service tasks if a reset is in progress */
6300 if (test_bit(__I40E_RESET_RECOVERY_PENDING
, &pf
->state
)) {
6301 i40e_service_event_complete(pf
);
6305 i40e_reset_subtask(pf
);
6306 i40e_handle_mdd_event(pf
);
6307 i40e_vc_process_vflr_event(pf
);
6308 i40e_watchdog_subtask(pf
);
6309 i40e_fdir_reinit_subtask(pf
);
6310 i40e_check_hang_subtask(pf
);
6311 i40e_sync_filters_subtask(pf
);
6312 #ifdef CONFIG_I40E_VXLAN
6313 i40e_sync_vxlan_filters_subtask(pf
);
6315 i40e_clean_adminq_subtask(pf
);
6317 i40e_link_event(pf
);
6319 i40e_service_event_complete(pf
);
6321 /* If the tasks have taken longer than one timer cycle or there
6322 * is more work to be done, reschedule the service task now
6323 * rather than wait for the timer to tick again.
6325 if (time_after(jiffies
, (start_time
+ pf
->service_timer_period
)) ||
6326 test_bit(__I40E_ADMINQ_EVENT_PENDING
, &pf
->state
) ||
6327 test_bit(__I40E_MDD_EVENT_PENDING
, &pf
->state
) ||
6328 test_bit(__I40E_VFLR_EVENT_PENDING
, &pf
->state
))
6329 i40e_service_event_schedule(pf
);
6333 * i40e_service_timer - timer callback
6334 * @data: pointer to PF struct
6336 static void i40e_service_timer(unsigned long data
)
6338 struct i40e_pf
*pf
= (struct i40e_pf
*)data
;
6340 mod_timer(&pf
->service_timer
,
6341 round_jiffies(jiffies
+ pf
->service_timer_period
));
6342 i40e_service_event_schedule(pf
);
6346 * i40e_set_num_rings_in_vsi - Determine number of rings in the VSI
6347 * @vsi: the VSI being configured
6349 static int i40e_set_num_rings_in_vsi(struct i40e_vsi
*vsi
)
6351 struct i40e_pf
*pf
= vsi
->back
;
6353 switch (vsi
->type
) {
6355 vsi
->alloc_queue_pairs
= pf
->num_lan_qps
;
6356 vsi
->num_desc
= ALIGN(I40E_DEFAULT_NUM_DESCRIPTORS
,
6357 I40E_REQ_DESCRIPTOR_MULTIPLE
);
6358 if (pf
->flags
& I40E_FLAG_MSIX_ENABLED
)
6359 vsi
->num_q_vectors
= pf
->num_lan_msix
;
6361 vsi
->num_q_vectors
= 1;
6366 vsi
->alloc_queue_pairs
= 1;
6367 vsi
->num_desc
= ALIGN(I40E_FDIR_RING_COUNT
,
6368 I40E_REQ_DESCRIPTOR_MULTIPLE
);
6369 vsi
->num_q_vectors
= 1;
6372 case I40E_VSI_VMDQ2
:
6373 vsi
->alloc_queue_pairs
= pf
->num_vmdq_qps
;
6374 vsi
->num_desc
= ALIGN(I40E_DEFAULT_NUM_DESCRIPTORS
,
6375 I40E_REQ_DESCRIPTOR_MULTIPLE
);
6376 vsi
->num_q_vectors
= pf
->num_vmdq_msix
;
6379 case I40E_VSI_SRIOV
:
6380 vsi
->alloc_queue_pairs
= pf
->num_vf_qps
;
6381 vsi
->num_desc
= ALIGN(I40E_DEFAULT_NUM_DESCRIPTORS
,
6382 I40E_REQ_DESCRIPTOR_MULTIPLE
);
6387 vsi
->alloc_queue_pairs
= pf
->num_fcoe_qps
;
6388 vsi
->num_desc
= ALIGN(I40E_DEFAULT_NUM_DESCRIPTORS
,
6389 I40E_REQ_DESCRIPTOR_MULTIPLE
);
6390 vsi
->num_q_vectors
= pf
->num_fcoe_msix
;
6393 #endif /* I40E_FCOE */
6403 * i40e_vsi_alloc_arrays - Allocate queue and vector pointer arrays for the vsi
6404 * @type: VSI pointer
6405 * @alloc_qvectors: a bool to specify if q_vectors need to be allocated.
6407 * On error: returns error code (negative)
6408 * On success: returns 0
6410 static int i40e_vsi_alloc_arrays(struct i40e_vsi
*vsi
, bool alloc_qvectors
)
6415 /* allocate memory for both Tx and Rx ring pointers */
6416 size
= sizeof(struct i40e_ring
*) * vsi
->alloc_queue_pairs
* 2;
6417 vsi
->tx_rings
= kzalloc(size
, GFP_KERNEL
);
6420 vsi
->rx_rings
= &vsi
->tx_rings
[vsi
->alloc_queue_pairs
];
6422 if (alloc_qvectors
) {
6423 /* allocate memory for q_vector pointers */
6424 size
= sizeof(struct i40e_q_vector
*) * vsi
->num_q_vectors
;
6425 vsi
->q_vectors
= kzalloc(size
, GFP_KERNEL
);
6426 if (!vsi
->q_vectors
) {
6434 kfree(vsi
->tx_rings
);
6439 * i40e_vsi_mem_alloc - Allocates the next available struct vsi in the PF
6440 * @pf: board private structure
6441 * @type: type of VSI
6443 * On error: returns error code (negative)
6444 * On success: returns vsi index in PF (positive)
6446 static int i40e_vsi_mem_alloc(struct i40e_pf
*pf
, enum i40e_vsi_type type
)
6449 struct i40e_vsi
*vsi
;
6453 /* Need to protect the allocation of the VSIs at the PF level */
6454 mutex_lock(&pf
->switch_mutex
);
6456 /* VSI list may be fragmented if VSI creation/destruction has
6457 * been happening. We can afford to do a quick scan to look
6458 * for any free VSIs in the list.
6460 * find next empty vsi slot, looping back around if necessary
6463 while (i
< pf
->num_alloc_vsi
&& pf
->vsi
[i
])
6465 if (i
>= pf
->num_alloc_vsi
) {
6467 while (i
< pf
->next_vsi
&& pf
->vsi
[i
])
6471 if (i
< pf
->num_alloc_vsi
&& !pf
->vsi
[i
]) {
6472 vsi_idx
= i
; /* Found one! */
6475 goto unlock_pf
; /* out of VSI slots! */
6479 vsi
= kzalloc(sizeof(*vsi
), GFP_KERNEL
);
6486 set_bit(__I40E_DOWN
, &vsi
->state
);
6489 vsi
->rx_itr_setting
= pf
->rx_itr_default
;
6490 vsi
->tx_itr_setting
= pf
->tx_itr_default
;
6491 vsi
->netdev_registered
= false;
6492 vsi
->work_limit
= I40E_DEFAULT_IRQ_WORK
;
6493 INIT_LIST_HEAD(&vsi
->mac_filter_list
);
6494 vsi
->irqs_ready
= false;
6496 ret
= i40e_set_num_rings_in_vsi(vsi
);
6500 ret
= i40e_vsi_alloc_arrays(vsi
, true);
6504 /* Setup default MSIX irq handler for VSI */
6505 i40e_vsi_setup_irqhandler(vsi
, i40e_msix_clean_rings
);
6507 pf
->vsi
[vsi_idx
] = vsi
;
6512 pf
->next_vsi
= i
- 1;
6515 mutex_unlock(&pf
->switch_mutex
);
6520 * i40e_vsi_free_arrays - Free queue and vector pointer arrays for the VSI
6521 * @type: VSI pointer
6522 * @free_qvectors: a bool to specify if q_vectors need to be freed.
6524 * On error: returns error code (negative)
6525 * On success: returns 0
6527 static void i40e_vsi_free_arrays(struct i40e_vsi
*vsi
, bool free_qvectors
)
6529 /* free the ring and vector containers */
6530 if (free_qvectors
) {
6531 kfree(vsi
->q_vectors
);
6532 vsi
->q_vectors
= NULL
;
6534 kfree(vsi
->tx_rings
);
6535 vsi
->tx_rings
= NULL
;
6536 vsi
->rx_rings
= NULL
;
6540 * i40e_vsi_clear - Deallocate the VSI provided
6541 * @vsi: the VSI being un-configured
6543 static int i40e_vsi_clear(struct i40e_vsi
*vsi
)
6554 mutex_lock(&pf
->switch_mutex
);
6555 if (!pf
->vsi
[vsi
->idx
]) {
6556 dev_err(&pf
->pdev
->dev
, "pf->vsi[%d] is NULL, just free vsi[%d](%p,type %d)\n",
6557 vsi
->idx
, vsi
->idx
, vsi
, vsi
->type
);
6561 if (pf
->vsi
[vsi
->idx
] != vsi
) {
6562 dev_err(&pf
->pdev
->dev
,
6563 "pf->vsi[%d](%p, type %d) != vsi[%d](%p,type %d): no free!\n",
6564 pf
->vsi
[vsi
->idx
]->idx
,
6566 pf
->vsi
[vsi
->idx
]->type
,
6567 vsi
->idx
, vsi
, vsi
->type
);
6571 /* updates the pf for this cleared vsi */
6572 i40e_put_lump(pf
->qp_pile
, vsi
->base_queue
, vsi
->idx
);
6573 i40e_put_lump(pf
->irq_pile
, vsi
->base_vector
, vsi
->idx
);
6575 i40e_vsi_free_arrays(vsi
, true);
6577 pf
->vsi
[vsi
->idx
] = NULL
;
6578 if (vsi
->idx
< pf
->next_vsi
)
6579 pf
->next_vsi
= vsi
->idx
;
6582 mutex_unlock(&pf
->switch_mutex
);
6590 * i40e_vsi_clear_rings - Deallocates the Rx and Tx rings for the provided VSI
6591 * @vsi: the VSI being cleaned
6593 static void i40e_vsi_clear_rings(struct i40e_vsi
*vsi
)
6597 if (vsi
->tx_rings
&& vsi
->tx_rings
[0]) {
6598 for (i
= 0; i
< vsi
->alloc_queue_pairs
; i
++) {
6599 kfree_rcu(vsi
->tx_rings
[i
], rcu
);
6600 vsi
->tx_rings
[i
] = NULL
;
6601 vsi
->rx_rings
[i
] = NULL
;
6607 * i40e_alloc_rings - Allocates the Rx and Tx rings for the provided VSI
6608 * @vsi: the VSI being configured
6610 static int i40e_alloc_rings(struct i40e_vsi
*vsi
)
6612 struct i40e_ring
*tx_ring
, *rx_ring
;
6613 struct i40e_pf
*pf
= vsi
->back
;
6616 /* Set basic values in the rings to be used later during open() */
6617 for (i
= 0; i
< vsi
->alloc_queue_pairs
; i
++) {
6618 /* allocate space for both Tx and Rx in one shot */
6619 tx_ring
= kzalloc(sizeof(struct i40e_ring
) * 2, GFP_KERNEL
);
6623 tx_ring
->queue_index
= i
;
6624 tx_ring
->reg_idx
= vsi
->base_queue
+ i
;
6625 tx_ring
->ring_active
= false;
6627 tx_ring
->netdev
= vsi
->netdev
;
6628 tx_ring
->dev
= &pf
->pdev
->dev
;
6629 tx_ring
->count
= vsi
->num_desc
;
6631 tx_ring
->dcb_tc
= 0;
6632 vsi
->tx_rings
[i
] = tx_ring
;
6634 rx_ring
= &tx_ring
[1];
6635 rx_ring
->queue_index
= i
;
6636 rx_ring
->reg_idx
= vsi
->base_queue
+ i
;
6637 rx_ring
->ring_active
= false;
6639 rx_ring
->netdev
= vsi
->netdev
;
6640 rx_ring
->dev
= &pf
->pdev
->dev
;
6641 rx_ring
->count
= vsi
->num_desc
;
6643 rx_ring
->dcb_tc
= 0;
6644 if (pf
->flags
& I40E_FLAG_16BYTE_RX_DESC_ENABLED
)
6645 set_ring_16byte_desc_enabled(rx_ring
);
6647 clear_ring_16byte_desc_enabled(rx_ring
);
6648 vsi
->rx_rings
[i
] = rx_ring
;
6654 i40e_vsi_clear_rings(vsi
);
6659 * i40e_reserve_msix_vectors - Reserve MSI-X vectors in the kernel
6660 * @pf: board private structure
6661 * @vectors: the number of MSI-X vectors to request
6663 * Returns the number of vectors reserved, or error
6665 static int i40e_reserve_msix_vectors(struct i40e_pf
*pf
, int vectors
)
6667 vectors
= pci_enable_msix_range(pf
->pdev
, pf
->msix_entries
,
6668 I40E_MIN_MSIX
, vectors
);
6670 dev_info(&pf
->pdev
->dev
,
6671 "MSI-X vector reservation failed: %d\n", vectors
);
6679 * i40e_init_msix - Setup the MSIX capability
6680 * @pf: board private structure
6682 * Work with the OS to set up the MSIX vectors needed.
6684 * Returns 0 on success, negative on failure
6686 static int i40e_init_msix(struct i40e_pf
*pf
)
6688 i40e_status err
= 0;
6689 struct i40e_hw
*hw
= &pf
->hw
;
6693 if (!(pf
->flags
& I40E_FLAG_MSIX_ENABLED
))
6696 /* The number of vectors we'll request will be comprised of:
6697 * - Add 1 for "other" cause for Admin Queue events, etc.
6698 * - The number of LAN queue pairs
6699 * - Queues being used for RSS.
6700 * We don't need as many as max_rss_size vectors.
6701 * use rss_size instead in the calculation since that
6702 * is governed by number of cpus in the system.
6703 * - assumes symmetric Tx/Rx pairing
6704 * - The number of VMDq pairs
6706 * - The number of FCOE qps.
6708 * Once we count this up, try the request.
6710 * If we can't get what we want, we'll simplify to nearly nothing
6711 * and try again. If that still fails, we punt.
6713 pf
->num_lan_msix
= pf
->num_lan_qps
- (pf
->rss_size_max
- pf
->rss_size
);
6714 pf
->num_vmdq_msix
= pf
->num_vmdq_qps
;
6715 v_budget
= 1 + pf
->num_lan_msix
;
6716 v_budget
+= (pf
->num_vmdq_vsis
* pf
->num_vmdq_msix
);
6717 if (pf
->flags
& I40E_FLAG_FD_SB_ENABLED
)
6721 if (pf
->flags
& I40E_FLAG_FCOE_ENABLED
) {
6722 pf
->num_fcoe_msix
= pf
->num_fcoe_qps
;
6723 v_budget
+= pf
->num_fcoe_msix
;
6727 /* Scale down if necessary, and the rings will share vectors */
6728 v_budget
= min_t(int, v_budget
, hw
->func_caps
.num_msix_vectors
);
6730 pf
->msix_entries
= kcalloc(v_budget
, sizeof(struct msix_entry
),
6732 if (!pf
->msix_entries
)
6735 for (i
= 0; i
< v_budget
; i
++)
6736 pf
->msix_entries
[i
].entry
= i
;
6737 vec
= i40e_reserve_msix_vectors(pf
, v_budget
);
6739 if (vec
!= v_budget
) {
6740 /* If we have limited resources, we will start with no vectors
6741 * for the special features and then allocate vectors to some
6742 * of these features based on the policy and at the end disable
6743 * the features that did not get any vectors.
6746 pf
->num_fcoe_qps
= 0;
6747 pf
->num_fcoe_msix
= 0;
6749 pf
->num_vmdq_msix
= 0;
6752 if (vec
< I40E_MIN_MSIX
) {
6753 pf
->flags
&= ~I40E_FLAG_MSIX_ENABLED
;
6754 kfree(pf
->msix_entries
);
6755 pf
->msix_entries
= NULL
;
6758 } else if (vec
== I40E_MIN_MSIX
) {
6759 /* Adjust for minimal MSIX use */
6760 pf
->num_vmdq_vsis
= 0;
6761 pf
->num_vmdq_qps
= 0;
6762 pf
->num_lan_qps
= 1;
6763 pf
->num_lan_msix
= 1;
6765 } else if (vec
!= v_budget
) {
6766 /* reserve the misc vector */
6769 /* Scale vector usage down */
6770 pf
->num_vmdq_msix
= 1; /* force VMDqs to only one vector */
6771 pf
->num_vmdq_vsis
= 1;
6773 /* partition out the remaining vectors */
6776 pf
->num_lan_msix
= 1;
6780 /* give one vector to FCoE */
6781 if (pf
->flags
& I40E_FLAG_FCOE_ENABLED
) {
6782 pf
->num_lan_msix
= 1;
6783 pf
->num_fcoe_msix
= 1;
6786 pf
->num_lan_msix
= 2;
6791 /* give one vector to FCoE */
6792 if (pf
->flags
& I40E_FLAG_FCOE_ENABLED
) {
6793 pf
->num_fcoe_msix
= 1;
6797 pf
->num_lan_msix
= min_t(int, (vec
/ 2),
6799 pf
->num_vmdq_vsis
= min_t(int, (vec
- pf
->num_lan_msix
),
6800 I40E_DEFAULT_NUM_VMDQ_VSI
);
6805 if ((pf
->flags
& I40E_FLAG_VMDQ_ENABLED
) &&
6806 (pf
->num_vmdq_msix
== 0)) {
6807 dev_info(&pf
->pdev
->dev
, "VMDq disabled, not enough MSI-X vectors\n");
6808 pf
->flags
&= ~I40E_FLAG_VMDQ_ENABLED
;
6812 if ((pf
->flags
& I40E_FLAG_FCOE_ENABLED
) && (pf
->num_fcoe_msix
== 0)) {
6813 dev_info(&pf
->pdev
->dev
, "FCOE disabled, not enough MSI-X vectors\n");
6814 pf
->flags
&= ~I40E_FLAG_FCOE_ENABLED
;
6821 * i40e_vsi_alloc_q_vector - Allocate memory for a single interrupt vector
6822 * @vsi: the VSI being configured
6823 * @v_idx: index of the vector in the vsi struct
6825 * We allocate one q_vector. If allocation fails we return -ENOMEM.
6827 static int i40e_vsi_alloc_q_vector(struct i40e_vsi
*vsi
, int v_idx
)
6829 struct i40e_q_vector
*q_vector
;
6831 /* allocate q_vector */
6832 q_vector
= kzalloc(sizeof(struct i40e_q_vector
), GFP_KERNEL
);
6836 q_vector
->vsi
= vsi
;
6837 q_vector
->v_idx
= v_idx
;
6838 cpumask_set_cpu(v_idx
, &q_vector
->affinity_mask
);
6840 netif_napi_add(vsi
->netdev
, &q_vector
->napi
,
6841 i40e_napi_poll
, NAPI_POLL_WEIGHT
);
6843 q_vector
->rx
.latency_range
= I40E_LOW_LATENCY
;
6844 q_vector
->tx
.latency_range
= I40E_LOW_LATENCY
;
6846 /* tie q_vector and vsi together */
6847 vsi
->q_vectors
[v_idx
] = q_vector
;
6853 * i40e_vsi_alloc_q_vectors - Allocate memory for interrupt vectors
6854 * @vsi: the VSI being configured
6856 * We allocate one q_vector per queue interrupt. If allocation fails we
6859 static int i40e_vsi_alloc_q_vectors(struct i40e_vsi
*vsi
)
6861 struct i40e_pf
*pf
= vsi
->back
;
6862 int v_idx
, num_q_vectors
;
6865 /* if not MSIX, give the one vector only to the LAN VSI */
6866 if (pf
->flags
& I40E_FLAG_MSIX_ENABLED
)
6867 num_q_vectors
= vsi
->num_q_vectors
;
6868 else if (vsi
== pf
->vsi
[pf
->lan_vsi
])
6873 for (v_idx
= 0; v_idx
< num_q_vectors
; v_idx
++) {
6874 err
= i40e_vsi_alloc_q_vector(vsi
, v_idx
);
6883 i40e_free_q_vector(vsi
, v_idx
);
6889 * i40e_init_interrupt_scheme - Determine proper interrupt scheme
6890 * @pf: board private structure to initialize
6892 static void i40e_init_interrupt_scheme(struct i40e_pf
*pf
)
6896 if (pf
->flags
& I40E_FLAG_MSIX_ENABLED
) {
6897 err
= i40e_init_msix(pf
);
6899 pf
->flags
&= ~(I40E_FLAG_MSIX_ENABLED
|
6901 I40E_FLAG_FCOE_ENABLED
|
6903 I40E_FLAG_RSS_ENABLED
|
6904 I40E_FLAG_DCB_CAPABLE
|
6905 I40E_FLAG_SRIOV_ENABLED
|
6906 I40E_FLAG_FD_SB_ENABLED
|
6907 I40E_FLAG_FD_ATR_ENABLED
|
6908 I40E_FLAG_VMDQ_ENABLED
);
6910 /* rework the queue expectations without MSIX */
6911 i40e_determine_queue_usage(pf
);
6915 if (!(pf
->flags
& I40E_FLAG_MSIX_ENABLED
) &&
6916 (pf
->flags
& I40E_FLAG_MSI_ENABLED
)) {
6917 dev_info(&pf
->pdev
->dev
, "MSI-X not available, trying MSI\n");
6918 err
= pci_enable_msi(pf
->pdev
);
6920 dev_info(&pf
->pdev
->dev
, "MSI init failed - %d\n", err
);
6921 pf
->flags
&= ~I40E_FLAG_MSI_ENABLED
;
6925 if (!(pf
->flags
& (I40E_FLAG_MSIX_ENABLED
| I40E_FLAG_MSI_ENABLED
)))
6926 dev_info(&pf
->pdev
->dev
, "MSI-X and MSI not available, falling back to Legacy IRQ\n");
6928 /* track first vector for misc interrupts */
6929 err
= i40e_get_lump(pf
, pf
->irq_pile
, 1, I40E_PILE_VALID_BIT
-1);
6933 * i40e_setup_misc_vector - Setup the misc vector to handle non queue events
6934 * @pf: board private structure
6936 * This sets up the handler for MSIX 0, which is used to manage the
6937 * non-queue interrupts, e.g. AdminQ and errors. This is not used
6938 * when in MSI or Legacy interrupt mode.
6940 static int i40e_setup_misc_vector(struct i40e_pf
*pf
)
6942 struct i40e_hw
*hw
= &pf
->hw
;
6945 /* Only request the irq if this is the first time through, and
6946 * not when we're rebuilding after a Reset
6948 if (!test_bit(__I40E_RESET_RECOVERY_PENDING
, &pf
->state
)) {
6949 err
= request_irq(pf
->msix_entries
[0].vector
,
6950 i40e_intr
, 0, pf
->misc_int_name
, pf
);
6952 dev_info(&pf
->pdev
->dev
,
6953 "request_irq for %s failed: %d\n",
6954 pf
->misc_int_name
, err
);
6959 i40e_enable_misc_int_causes(hw
);
6961 /* associate no queues to the misc vector */
6962 wr32(hw
, I40E_PFINT_LNKLST0
, I40E_QUEUE_END_OF_LIST
);
6963 wr32(hw
, I40E_PFINT_ITR0(I40E_RX_ITR
), I40E_ITR_8K
);
6967 i40e_irq_dynamic_enable_icr0(pf
);
6973 * i40e_config_rss - Prepare for RSS if used
6974 * @pf: board private structure
6976 static int i40e_config_rss(struct i40e_pf
*pf
)
6978 /* Set of random keys generated using kernel random number generator */
6979 static const u32 seed
[I40E_PFQF_HKEY_MAX_INDEX
+ 1] = {0x41b01687,
6980 0x183cfd8c, 0xce880440, 0x580cbc3c, 0x35897377,
6981 0x328b25e1, 0x4fa98922, 0xb7d90c14, 0xd5bad70d,
6982 0xcd15a2c1, 0xe8580225, 0x4a1e9d11, 0xfe5731be};
6983 struct i40e_hw
*hw
= &pf
->hw
;
6989 /* Fill out hash function seed */
6990 for (i
= 0; i
<= I40E_PFQF_HKEY_MAX_INDEX
; i
++)
6991 wr32(hw
, I40E_PFQF_HKEY(i
), seed
[i
]);
6993 /* By default we enable TCP/UDP with IPv4/IPv6 ptypes */
6994 hena
= (u64
)rd32(hw
, I40E_PFQF_HENA(0)) |
6995 ((u64
)rd32(hw
, I40E_PFQF_HENA(1)) << 32);
6996 hena
|= I40E_DEFAULT_RSS_HENA
;
6997 wr32(hw
, I40E_PFQF_HENA(0), (u32
)hena
);
6998 wr32(hw
, I40E_PFQF_HENA(1), (u32
)(hena
>> 32));
7000 /* Check capability and Set table size and register per hw expectation*/
7001 reg_val
= rd32(hw
, I40E_PFQF_CTL_0
);
7002 if (hw
->func_caps
.rss_table_size
== 512) {
7003 reg_val
|= I40E_PFQF_CTL_0_HASHLUTSIZE_512
;
7004 pf
->rss_table_size
= 512;
7006 pf
->rss_table_size
= 128;
7007 reg_val
&= ~I40E_PFQF_CTL_0_HASHLUTSIZE_512
;
7009 wr32(hw
, I40E_PFQF_CTL_0
, reg_val
);
7011 /* Populate the LUT with max no. of queues in round robin fashion */
7012 for (i
= 0, j
= 0; i
< pf
->rss_table_size
; i
++, j
++) {
7014 /* The assumption is that lan qp count will be the highest
7015 * qp count for any PF VSI that needs RSS.
7016 * If multiple VSIs need RSS support, all the qp counts
7017 * for those VSIs should be a power of 2 for RSS to work.
7018 * If LAN VSI is the only consumer for RSS then this requirement
7021 if (j
== pf
->rss_size
)
7023 /* lut = 4-byte sliding window of 4 lut entries */
7024 lut
= (lut
<< 8) | (j
&
7025 ((0x1 << pf
->hw
.func_caps
.rss_table_entry_width
) - 1));
7026 /* On i = 3, we have 4 entries in lut; write to the register */
7028 wr32(hw
, I40E_PFQF_HLUT(i
>> 2), lut
);
7036 * i40e_reconfig_rss_queues - change number of queues for rss and rebuild
7037 * @pf: board private structure
7038 * @queue_count: the requested queue count for rss.
7040 * returns 0 if rss is not enabled, if enabled returns the final rss queue
7041 * count which may be different from the requested queue count.
7043 int i40e_reconfig_rss_queues(struct i40e_pf
*pf
, int queue_count
)
7045 if (!(pf
->flags
& I40E_FLAG_RSS_ENABLED
))
7048 queue_count
= min_t(int, queue_count
, pf
->rss_size_max
);
7050 if (queue_count
!= pf
->rss_size
) {
7051 i40e_prep_for_reset(pf
);
7053 pf
->rss_size
= queue_count
;
7055 i40e_reset_and_rebuild(pf
, true);
7056 i40e_config_rss(pf
);
7058 dev_info(&pf
->pdev
->dev
, "RSS count: %d\n", pf
->rss_size
);
7059 return pf
->rss_size
;
7063 * i40e_sw_init - Initialize general software structures (struct i40e_pf)
7064 * @pf: board private structure to initialize
7066 * i40e_sw_init initializes the Adapter private data structure.
7067 * Fields are initialized based on PCI device information and
7068 * OS network device settings (MTU size).
7070 static int i40e_sw_init(struct i40e_pf
*pf
)
7075 pf
->msg_enable
= netif_msg_init(I40E_DEFAULT_MSG_ENABLE
,
7076 (NETIF_MSG_DRV
|NETIF_MSG_PROBE
|NETIF_MSG_LINK
));
7077 pf
->hw
.debug_mask
= pf
->msg_enable
| I40E_DEBUG_DIAG
;
7078 if (debug
!= -1 && debug
!= I40E_DEFAULT_MSG_ENABLE
) {
7079 if (I40E_DEBUG_USER
& debug
)
7080 pf
->hw
.debug_mask
= debug
;
7081 pf
->msg_enable
= netif_msg_init((debug
& ~I40E_DEBUG_USER
),
7082 I40E_DEFAULT_MSG_ENABLE
);
7085 /* Set default capability flags */
7086 pf
->flags
= I40E_FLAG_RX_CSUM_ENABLED
|
7087 I40E_FLAG_MSI_ENABLED
|
7088 I40E_FLAG_MSIX_ENABLED
|
7089 I40E_FLAG_RX_1BUF_ENABLED
;
7091 /* Set default ITR */
7092 pf
->rx_itr_default
= I40E_ITR_DYNAMIC
| I40E_ITR_RX_DEF
;
7093 pf
->tx_itr_default
= I40E_ITR_DYNAMIC
| I40E_ITR_TX_DEF
;
7095 /* Depending on PF configurations, it is possible that the RSS
7096 * maximum might end up larger than the available queues
7098 pf
->rss_size_max
= 0x1 << pf
->hw
.func_caps
.rss_table_entry_width
;
7100 pf
->rss_size_max
= min_t(int, pf
->rss_size_max
,
7101 pf
->hw
.func_caps
.num_tx_qp
);
7102 if (pf
->hw
.func_caps
.rss
) {
7103 pf
->flags
|= I40E_FLAG_RSS_ENABLED
;
7104 pf
->rss_size
= min_t(int, pf
->rss_size_max
, num_online_cpus());
7107 /* MFP mode enabled */
7108 if (pf
->hw
.func_caps
.npar_enable
|| pf
->hw
.func_caps
.mfp_mode_1
) {
7109 pf
->flags
|= I40E_FLAG_MFP_ENABLED
;
7110 dev_info(&pf
->pdev
->dev
, "MFP mode Enabled\n");
7113 /* FW/NVM is not yet fixed in this regard */
7114 if ((pf
->hw
.func_caps
.fd_filters_guaranteed
> 0) ||
7115 (pf
->hw
.func_caps
.fd_filters_best_effort
> 0)) {
7116 pf
->flags
|= I40E_FLAG_FD_ATR_ENABLED
;
7117 pf
->atr_sample_rate
= I40E_DEFAULT_ATR_SAMPLE_RATE
;
7118 /* Setup a counter for fd_atr per pf */
7119 pf
->fd_atr_cnt_idx
= I40E_FD_ATR_STAT_IDX(pf
->hw
.pf_id
);
7120 if (!(pf
->flags
& I40E_FLAG_MFP_ENABLED
)) {
7121 pf
->flags
|= I40E_FLAG_FD_SB_ENABLED
;
7122 /* Setup a counter for fd_sb per pf */
7123 pf
->fd_sb_cnt_idx
= I40E_FD_SB_STAT_IDX(pf
->hw
.pf_id
);
7125 dev_info(&pf
->pdev
->dev
,
7126 "Flow Director Sideband mode Disabled in MFP mode\n");
7128 pf
->fdir_pf_filter_count
=
7129 pf
->hw
.func_caps
.fd_filters_guaranteed
;
7130 pf
->hw
.fdir_shared_filter_count
=
7131 pf
->hw
.func_caps
.fd_filters_best_effort
;
7134 if (pf
->hw
.func_caps
.vmdq
) {
7135 pf
->flags
|= I40E_FLAG_VMDQ_ENABLED
;
7136 pf
->num_vmdq_vsis
= I40E_DEFAULT_NUM_VMDQ_VSI
;
7137 pf
->num_vmdq_qps
= I40E_DEFAULT_QUEUES_PER_VMDQ
;
7141 err
= i40e_init_pf_fcoe(pf
);
7143 dev_info(&pf
->pdev
->dev
, "init_pf_fcoe failed: %d\n", err
);
7145 #endif /* I40E_FCOE */
7146 #ifdef CONFIG_PCI_IOV
7147 if (pf
->hw
.func_caps
.num_vfs
) {
7148 pf
->num_vf_qps
= I40E_DEFAULT_QUEUES_PER_VF
;
7149 pf
->flags
|= I40E_FLAG_SRIOV_ENABLED
;
7150 pf
->num_req_vfs
= min_t(int,
7151 pf
->hw
.func_caps
.num_vfs
,
7154 #endif /* CONFIG_PCI_IOV */
7155 pf
->eeprom_version
= 0xDEAD;
7156 pf
->lan_veb
= I40E_NO_VEB
;
7157 pf
->lan_vsi
= I40E_NO_VSI
;
7159 /* set up queue assignment tracking */
7160 size
= sizeof(struct i40e_lump_tracking
)
7161 + (sizeof(u16
) * pf
->hw
.func_caps
.num_tx_qp
);
7162 pf
->qp_pile
= kzalloc(size
, GFP_KERNEL
);
7167 pf
->qp_pile
->num_entries
= pf
->hw
.func_caps
.num_tx_qp
;
7168 pf
->qp_pile
->search_hint
= 0;
7170 /* set up vector assignment tracking */
7171 size
= sizeof(struct i40e_lump_tracking
)
7172 + (sizeof(u16
) * pf
->hw
.func_caps
.num_msix_vectors
);
7173 pf
->irq_pile
= kzalloc(size
, GFP_KERNEL
);
7174 if (!pf
->irq_pile
) {
7179 pf
->irq_pile
->num_entries
= pf
->hw
.func_caps
.num_msix_vectors
;
7180 pf
->irq_pile
->search_hint
= 0;
7182 pf
->tx_timeout_recovery_level
= 1;
7184 mutex_init(&pf
->switch_mutex
);
7191 * i40e_set_ntuple - set the ntuple feature flag and take action
7192 * @pf: board private structure to initialize
7193 * @features: the feature set that the stack is suggesting
7195 * returns a bool to indicate if reset needs to happen
7197 bool i40e_set_ntuple(struct i40e_pf
*pf
, netdev_features_t features
)
7199 bool need_reset
= false;
7201 /* Check if Flow Director n-tuple support was enabled or disabled. If
7202 * the state changed, we need to reset.
7204 if (features
& NETIF_F_NTUPLE
) {
7205 /* Enable filters and mark for reset */
7206 if (!(pf
->flags
& I40E_FLAG_FD_SB_ENABLED
))
7208 pf
->flags
|= I40E_FLAG_FD_SB_ENABLED
;
7210 /* turn off filters, mark for reset and clear SW filter list */
7211 if (pf
->flags
& I40E_FLAG_FD_SB_ENABLED
) {
7213 i40e_fdir_filter_exit(pf
);
7215 pf
->flags
&= ~I40E_FLAG_FD_SB_ENABLED
;
7216 pf
->auto_disable_flags
&= ~I40E_FLAG_FD_SB_ENABLED
;
7217 /* reset fd counters */
7218 pf
->fd_add_err
= pf
->fd_atr_cnt
= pf
->fd_tcp_rule
= 0;
7219 pf
->fdir_pf_active_filters
= 0;
7220 pf
->flags
|= I40E_FLAG_FD_ATR_ENABLED
;
7221 dev_info(&pf
->pdev
->dev
, "ATR re-enabled.\n");
7222 /* if ATR was auto disabled it can be re-enabled. */
7223 if ((pf
->flags
& I40E_FLAG_FD_ATR_ENABLED
) &&
7224 (pf
->auto_disable_flags
& I40E_FLAG_FD_ATR_ENABLED
))
7225 pf
->auto_disable_flags
&= ~I40E_FLAG_FD_ATR_ENABLED
;
7231 * i40e_set_features - set the netdev feature flags
7232 * @netdev: ptr to the netdev being adjusted
7233 * @features: the feature set that the stack is suggesting
7235 static int i40e_set_features(struct net_device
*netdev
,
7236 netdev_features_t features
)
7238 struct i40e_netdev_priv
*np
= netdev_priv(netdev
);
7239 struct i40e_vsi
*vsi
= np
->vsi
;
7240 struct i40e_pf
*pf
= vsi
->back
;
7243 if (features
& NETIF_F_HW_VLAN_CTAG_RX
)
7244 i40e_vlan_stripping_enable(vsi
);
7246 i40e_vlan_stripping_disable(vsi
);
7248 need_reset
= i40e_set_ntuple(pf
, features
);
7251 i40e_do_reset(pf
, (1 << __I40E_PF_RESET_REQUESTED
));
7256 #ifdef CONFIG_I40E_VXLAN
7258 * i40e_get_vxlan_port_idx - Lookup a possibly offloaded for Rx UDP port
7259 * @pf: board private structure
7260 * @port: The UDP port to look up
7262 * Returns the index number or I40E_MAX_PF_UDP_OFFLOAD_PORTS if port not found
7264 static u8
i40e_get_vxlan_port_idx(struct i40e_pf
*pf
, __be16 port
)
7268 for (i
= 0; i
< I40E_MAX_PF_UDP_OFFLOAD_PORTS
; i
++) {
7269 if (pf
->vxlan_ports
[i
] == port
)
7277 * i40e_add_vxlan_port - Get notifications about VXLAN ports that come up
7278 * @netdev: This physical port's netdev
7279 * @sa_family: Socket Family that VXLAN is notifying us about
7280 * @port: New UDP port number that VXLAN started listening to
7282 static void i40e_add_vxlan_port(struct net_device
*netdev
,
7283 sa_family_t sa_family
, __be16 port
)
7285 struct i40e_netdev_priv
*np
= netdev_priv(netdev
);
7286 struct i40e_vsi
*vsi
= np
->vsi
;
7287 struct i40e_pf
*pf
= vsi
->back
;
7291 if (sa_family
== AF_INET6
)
7294 idx
= i40e_get_vxlan_port_idx(pf
, port
);
7296 /* Check if port already exists */
7297 if (idx
< I40E_MAX_PF_UDP_OFFLOAD_PORTS
) {
7298 netdev_info(netdev
, "Port %d already offloaded\n", ntohs(port
));
7302 /* Now check if there is space to add the new port */
7303 next_idx
= i40e_get_vxlan_port_idx(pf
, 0);
7305 if (next_idx
== I40E_MAX_PF_UDP_OFFLOAD_PORTS
) {
7306 netdev_info(netdev
, "Maximum number of UDP ports reached, not adding port %d\n",
7311 /* New port: add it and mark its index in the bitmap */
7312 pf
->vxlan_ports
[next_idx
] = port
;
7313 pf
->pending_vxlan_bitmap
|= (1 << next_idx
);
7315 pf
->flags
|= I40E_FLAG_VXLAN_FILTER_SYNC
;
7319 * i40e_del_vxlan_port - Get notifications about VXLAN ports that go away
7320 * @netdev: This physical port's netdev
7321 * @sa_family: Socket Family that VXLAN is notifying us about
7322 * @port: UDP port number that VXLAN stopped listening to
7324 static void i40e_del_vxlan_port(struct net_device
*netdev
,
7325 sa_family_t sa_family
, __be16 port
)
7327 struct i40e_netdev_priv
*np
= netdev_priv(netdev
);
7328 struct i40e_vsi
*vsi
= np
->vsi
;
7329 struct i40e_pf
*pf
= vsi
->back
;
7332 if (sa_family
== AF_INET6
)
7335 idx
= i40e_get_vxlan_port_idx(pf
, port
);
7337 /* Check if port already exists */
7338 if (idx
< I40E_MAX_PF_UDP_OFFLOAD_PORTS
) {
7339 /* if port exists, set it to 0 (mark for deletion)
7340 * and make it pending
7342 pf
->vxlan_ports
[idx
] = 0;
7344 pf
->pending_vxlan_bitmap
|= (1 << idx
);
7346 pf
->flags
|= I40E_FLAG_VXLAN_FILTER_SYNC
;
7348 netdev_warn(netdev
, "Port %d was not found, not deleting\n",
7354 static int i40e_get_phys_port_id(struct net_device
*netdev
,
7355 struct netdev_phys_port_id
*ppid
)
7357 struct i40e_netdev_priv
*np
= netdev_priv(netdev
);
7358 struct i40e_pf
*pf
= np
->vsi
->back
;
7359 struct i40e_hw
*hw
= &pf
->hw
;
7361 if (!(pf
->flags
& I40E_FLAG_PORT_ID_VALID
))
7364 ppid
->id_len
= min_t(int, sizeof(hw
->mac
.port_addr
), sizeof(ppid
->id
));
7365 memcpy(ppid
->id
, hw
->mac
.port_addr
, ppid
->id_len
);
7371 #ifdef USE_CONST_DEV_UC_CHAR
7372 static int i40e_ndo_fdb_add(struct ndmsg
*ndm
, struct nlattr
*tb
[],
7373 struct net_device
*dev
,
7374 const unsigned char *addr
,
7377 static int i40e_ndo_fdb_add(struct ndmsg
*ndm
,
7378 struct net_device
*dev
,
7379 unsigned char *addr
,
7383 struct i40e_netdev_priv
*np
= netdev_priv(dev
);
7384 struct i40e_pf
*pf
= np
->vsi
->back
;
7387 if (!(pf
->flags
& I40E_FLAG_SRIOV_ENABLED
))
7390 /* Hardware does not support aging addresses so if a
7391 * ndm_state is given only allow permanent addresses
7393 if (ndm
->ndm_state
&& !(ndm
->ndm_state
& NUD_PERMANENT
)) {
7394 netdev_info(dev
, "FDB only supports static addresses\n");
7398 if (is_unicast_ether_addr(addr
) || is_link_local_ether_addr(addr
))
7399 err
= dev_uc_add_excl(dev
, addr
);
7400 else if (is_multicast_ether_addr(addr
))
7401 err
= dev_mc_add_excl(dev
, addr
);
7405 /* Only return duplicate errors if NLM_F_EXCL is set */
7406 if (err
== -EEXIST
&& !(flags
& NLM_F_EXCL
))
7412 #ifndef USE_DEFAULT_FDB_DEL_DUMP
7413 #ifdef USE_CONST_DEV_UC_CHAR
7414 static int i40e_ndo_fdb_del(struct ndmsg
*ndm
,
7415 struct net_device
*dev
,
7416 const unsigned char *addr
)
7418 static int i40e_ndo_fdb_del(struct ndmsg
*ndm
,
7419 struct net_device
*dev
,
7420 unsigned char *addr
)
7423 struct i40e_netdev_priv
*np
= netdev_priv(dev
);
7424 struct i40e_pf
*pf
= np
->vsi
->back
;
7425 int err
= -EOPNOTSUPP
;
7427 if (ndm
->ndm_state
& NUD_PERMANENT
) {
7428 netdev_info(dev
, "FDB only supports static addresses\n");
7432 if (pf
->flags
& I40E_FLAG_SRIOV_ENABLED
) {
7433 if (is_unicast_ether_addr(addr
))
7434 err
= dev_uc_del(dev
, addr
);
7435 else if (is_multicast_ether_addr(addr
))
7436 err
= dev_mc_del(dev
, addr
);
7444 static int i40e_ndo_fdb_dump(struct sk_buff
*skb
,
7445 struct netlink_callback
*cb
,
7446 struct net_device
*dev
,
7447 struct net_device
*filter_dev
,
7450 struct i40e_netdev_priv
*np
= netdev_priv(dev
);
7451 struct i40e_pf
*pf
= np
->vsi
->back
;
7453 if (pf
->flags
& I40E_FLAG_SRIOV_ENABLED
)
7454 idx
= ndo_dflt_fdb_dump(skb
, cb
, dev
, filter_dev
, idx
);
7459 #endif /* USE_DEFAULT_FDB_DEL_DUMP */
7460 #endif /* HAVE_FDB_OPS */
7461 static const struct net_device_ops i40e_netdev_ops
= {
7462 .ndo_open
= i40e_open
,
7463 .ndo_stop
= i40e_close
,
7464 .ndo_start_xmit
= i40e_lan_xmit_frame
,
7465 .ndo_get_stats64
= i40e_get_netdev_stats_struct
,
7466 .ndo_set_rx_mode
= i40e_set_rx_mode
,
7467 .ndo_validate_addr
= eth_validate_addr
,
7468 .ndo_set_mac_address
= i40e_set_mac
,
7469 .ndo_change_mtu
= i40e_change_mtu
,
7470 .ndo_do_ioctl
= i40e_ioctl
,
7471 .ndo_tx_timeout
= i40e_tx_timeout
,
7472 .ndo_vlan_rx_add_vid
= i40e_vlan_rx_add_vid
,
7473 .ndo_vlan_rx_kill_vid
= i40e_vlan_rx_kill_vid
,
7474 #ifdef CONFIG_NET_POLL_CONTROLLER
7475 .ndo_poll_controller
= i40e_netpoll
,
7477 .ndo_setup_tc
= i40e_setup_tc
,
7479 .ndo_fcoe_enable
= i40e_fcoe_enable
,
7480 .ndo_fcoe_disable
= i40e_fcoe_disable
,
7482 .ndo_set_features
= i40e_set_features
,
7483 .ndo_set_vf_mac
= i40e_ndo_set_vf_mac
,
7484 .ndo_set_vf_vlan
= i40e_ndo_set_vf_port_vlan
,
7485 .ndo_set_vf_rate
= i40e_ndo_set_vf_bw
,
7486 .ndo_get_vf_config
= i40e_ndo_get_vf_config
,
7487 .ndo_set_vf_link_state
= i40e_ndo_set_vf_link_state
,
7488 .ndo_set_vf_spoofchk
= i40e_ndo_set_vf_spoofchk
,
7489 #ifdef CONFIG_I40E_VXLAN
7490 .ndo_add_vxlan_port
= i40e_add_vxlan_port
,
7491 .ndo_del_vxlan_port
= i40e_del_vxlan_port
,
7493 .ndo_get_phys_port_id
= i40e_get_phys_port_id
,
7495 .ndo_fdb_add
= i40e_ndo_fdb_add
,
7496 #ifndef USE_DEFAULT_FDB_DEL_DUMP
7497 .ndo_fdb_del
= i40e_ndo_fdb_del
,
7498 .ndo_fdb_dump
= i40e_ndo_fdb_dump
,
7504 * i40e_config_netdev - Setup the netdev flags
7505 * @vsi: the VSI being configured
7507 * Returns 0 on success, negative value on failure
7509 static int i40e_config_netdev(struct i40e_vsi
*vsi
)
7511 u8 brdcast
[ETH_ALEN
] = {0xff, 0xff, 0xff, 0xff, 0xff, 0xff};
7512 struct i40e_pf
*pf
= vsi
->back
;
7513 struct i40e_hw
*hw
= &pf
->hw
;
7514 struct i40e_netdev_priv
*np
;
7515 struct net_device
*netdev
;
7516 u8 mac_addr
[ETH_ALEN
];
7519 etherdev_size
= sizeof(struct i40e_netdev_priv
);
7520 netdev
= alloc_etherdev_mq(etherdev_size
, vsi
->alloc_queue_pairs
);
7524 vsi
->netdev
= netdev
;
7525 np
= netdev_priv(netdev
);
7528 netdev
->hw_enc_features
|= NETIF_F_IP_CSUM
|
7529 NETIF_F_GSO_UDP_TUNNEL
|
7532 netdev
->features
= NETIF_F_SG
|
7536 NETIF_F_GSO_UDP_TUNNEL
|
7537 NETIF_F_HW_VLAN_CTAG_TX
|
7538 NETIF_F_HW_VLAN_CTAG_RX
|
7539 NETIF_F_HW_VLAN_CTAG_FILTER
|
7548 if (!(pf
->flags
& I40E_FLAG_MFP_ENABLED
))
7549 netdev
->features
|= NETIF_F_NTUPLE
;
7551 /* copy netdev features into list of user selectable features */
7552 netdev
->hw_features
|= netdev
->features
;
7554 if (vsi
->type
== I40E_VSI_MAIN
) {
7555 SET_NETDEV_DEV(netdev
, &pf
->pdev
->dev
);
7556 ether_addr_copy(mac_addr
, hw
->mac
.perm_addr
);
7557 /* The following steps are necessary to prevent reception
7558 * of tagged packets - some older NVM configurations load a
7559 * default a MAC-VLAN filter that accepts any tagged packet
7560 * which must be replaced by a normal filter.
7562 if (!i40e_rm_default_mac_filter(vsi
, mac_addr
))
7563 i40e_add_filter(vsi
, mac_addr
,
7564 I40E_VLAN_ANY
, false, true);
7566 /* relate the VSI_VMDQ name to the VSI_MAIN name */
7567 snprintf(netdev
->name
, IFNAMSIZ
, "%sv%%d",
7568 pf
->vsi
[pf
->lan_vsi
]->netdev
->name
);
7569 random_ether_addr(mac_addr
);
7570 i40e_add_filter(vsi
, mac_addr
, I40E_VLAN_ANY
, false, false);
7572 i40e_add_filter(vsi
, brdcast
, I40E_VLAN_ANY
, false, false);
7574 ether_addr_copy(netdev
->dev_addr
, mac_addr
);
7575 ether_addr_copy(netdev
->perm_addr
, mac_addr
);
7576 /* vlan gets same features (except vlan offload)
7577 * after any tweaks for specific VSI types
7579 netdev
->vlan_features
= netdev
->features
& ~(NETIF_F_HW_VLAN_CTAG_TX
|
7580 NETIF_F_HW_VLAN_CTAG_RX
|
7581 NETIF_F_HW_VLAN_CTAG_FILTER
);
7582 netdev
->priv_flags
|= IFF_UNICAST_FLT
;
7583 netdev
->priv_flags
|= IFF_SUPP_NOFCS
;
7584 /* Setup netdev TC information */
7585 i40e_vsi_config_netdev_tc(vsi
, vsi
->tc_config
.enabled_tc
);
7587 netdev
->netdev_ops
= &i40e_netdev_ops
;
7588 netdev
->watchdog_timeo
= 5 * HZ
;
7589 i40e_set_ethtool_ops(netdev
);
7591 i40e_fcoe_config_netdev(netdev
, vsi
);
7598 * i40e_vsi_delete - Delete a VSI from the switch
7599 * @vsi: the VSI being removed
7601 * Returns 0 on success, negative value on failure
7603 static void i40e_vsi_delete(struct i40e_vsi
*vsi
)
7605 /* remove default VSI is not allowed */
7606 if (vsi
== vsi
->back
->vsi
[vsi
->back
->lan_vsi
])
7609 i40e_aq_delete_element(&vsi
->back
->hw
, vsi
->seid
, NULL
);
7613 * i40e_add_vsi - Add a VSI to the switch
7614 * @vsi: the VSI being configured
7616 * This initializes a VSI context depending on the VSI type to be added and
7617 * passes it down to the add_vsi aq command.
7619 static int i40e_add_vsi(struct i40e_vsi
*vsi
)
7622 struct i40e_mac_filter
*f
, *ftmp
;
7623 struct i40e_pf
*pf
= vsi
->back
;
7624 struct i40e_hw
*hw
= &pf
->hw
;
7625 struct i40e_vsi_context ctxt
;
7626 u8 enabled_tc
= 0x1; /* TC0 enabled */
7629 memset(&ctxt
, 0, sizeof(ctxt
));
7630 switch (vsi
->type
) {
7632 /* The PF's main VSI is already setup as part of the
7633 * device initialization, so we'll not bother with
7634 * the add_vsi call, but we will retrieve the current
7637 ctxt
.seid
= pf
->main_vsi_seid
;
7638 ctxt
.pf_num
= pf
->hw
.pf_id
;
7640 ret
= i40e_aq_get_vsi_params(&pf
->hw
, &ctxt
, NULL
);
7641 ctxt
.flags
= I40E_AQ_VSI_TYPE_PF
;
7643 dev_info(&pf
->pdev
->dev
,
7644 "couldn't get pf vsi config, err %d, aq_err %d\n",
7645 ret
, pf
->hw
.aq
.asq_last_status
);
7648 memcpy(&vsi
->info
, &ctxt
.info
, sizeof(ctxt
.info
));
7649 vsi
->info
.valid_sections
= 0;
7651 vsi
->seid
= ctxt
.seid
;
7652 vsi
->id
= ctxt
.vsi_number
;
7654 enabled_tc
= i40e_pf_get_tc_map(pf
);
7656 /* MFP mode setup queue map and update VSI */
7657 if (pf
->flags
& I40E_FLAG_MFP_ENABLED
) {
7658 memset(&ctxt
, 0, sizeof(ctxt
));
7659 ctxt
.seid
= pf
->main_vsi_seid
;
7660 ctxt
.pf_num
= pf
->hw
.pf_id
;
7662 i40e_vsi_setup_queue_map(vsi
, &ctxt
, enabled_tc
, false);
7663 ret
= i40e_aq_update_vsi_params(hw
, &ctxt
, NULL
);
7665 dev_info(&pf
->pdev
->dev
,
7666 "update vsi failed, aq_err=%d\n",
7667 pf
->hw
.aq
.asq_last_status
);
7671 /* update the local VSI info queue map */
7672 i40e_vsi_update_queue_map(vsi
, &ctxt
);
7673 vsi
->info
.valid_sections
= 0;
7675 /* Default/Main VSI is only enabled for TC0
7676 * reconfigure it to enable all TCs that are
7677 * available on the port in SFP mode.
7679 ret
= i40e_vsi_config_tc(vsi
, enabled_tc
);
7681 dev_info(&pf
->pdev
->dev
,
7682 "failed to configure TCs for main VSI tc_map 0x%08x, err %d, aq_err %d\n",
7684 pf
->hw
.aq
.asq_last_status
);
7691 ctxt
.pf_num
= hw
->pf_id
;
7693 ctxt
.uplink_seid
= vsi
->uplink_seid
;
7694 ctxt
.connection_type
= 0x1; /* regular data port */
7695 ctxt
.flags
= I40E_AQ_VSI_TYPE_PF
;
7696 i40e_vsi_setup_queue_map(vsi
, &ctxt
, enabled_tc
, true);
7699 case I40E_VSI_VMDQ2
:
7700 ctxt
.pf_num
= hw
->pf_id
;
7702 ctxt
.uplink_seid
= vsi
->uplink_seid
;
7703 ctxt
.connection_type
= 0x1; /* regular data port */
7704 ctxt
.flags
= I40E_AQ_VSI_TYPE_VMDQ2
;
7706 ctxt
.info
.valid_sections
|= cpu_to_le16(I40E_AQ_VSI_PROP_SWITCH_VALID
);
7708 /* This VSI is connected to VEB so the switch_id
7709 * should be set to zero by default.
7711 ctxt
.info
.switch_id
= 0;
7712 ctxt
.info
.switch_id
|= cpu_to_le16(I40E_AQ_VSI_SW_ID_FLAG_ALLOW_LB
);
7714 /* Setup the VSI tx/rx queue map for TC0 only for now */
7715 i40e_vsi_setup_queue_map(vsi
, &ctxt
, enabled_tc
, true);
7718 case I40E_VSI_SRIOV
:
7719 ctxt
.pf_num
= hw
->pf_id
;
7720 ctxt
.vf_num
= vsi
->vf_id
+ hw
->func_caps
.vf_base_id
;
7721 ctxt
.uplink_seid
= vsi
->uplink_seid
;
7722 ctxt
.connection_type
= 0x1; /* regular data port */
7723 ctxt
.flags
= I40E_AQ_VSI_TYPE_VF
;
7725 ctxt
.info
.valid_sections
|= cpu_to_le16(I40E_AQ_VSI_PROP_SWITCH_VALID
);
7727 /* This VSI is connected to VEB so the switch_id
7728 * should be set to zero by default.
7730 ctxt
.info
.switch_id
= cpu_to_le16(I40E_AQ_VSI_SW_ID_FLAG_ALLOW_LB
);
7732 ctxt
.info
.valid_sections
|= cpu_to_le16(I40E_AQ_VSI_PROP_VLAN_VALID
);
7733 ctxt
.info
.port_vlan_flags
|= I40E_AQ_VSI_PVLAN_MODE_ALL
;
7734 if (pf
->vf
[vsi
->vf_id
].spoofchk
) {
7735 ctxt
.info
.valid_sections
|=
7736 cpu_to_le16(I40E_AQ_VSI_PROP_SECURITY_VALID
);
7737 ctxt
.info
.sec_flags
|=
7738 (I40E_AQ_VSI_SEC_FLAG_ENABLE_VLAN_CHK
|
7739 I40E_AQ_VSI_SEC_FLAG_ENABLE_MAC_CHK
);
7741 /* Setup the VSI tx/rx queue map for TC0 only for now */
7742 i40e_vsi_setup_queue_map(vsi
, &ctxt
, enabled_tc
, true);
7747 ret
= i40e_fcoe_vsi_init(vsi
, &ctxt
);
7749 dev_info(&pf
->pdev
->dev
, "failed to initialize FCoE VSI\n");
7754 #endif /* I40E_FCOE */
7759 if (vsi
->type
!= I40E_VSI_MAIN
) {
7760 ret
= i40e_aq_add_vsi(hw
, &ctxt
, NULL
);
7762 dev_info(&vsi
->back
->pdev
->dev
,
7763 "add vsi failed, aq_err=%d\n",
7764 vsi
->back
->hw
.aq
.asq_last_status
);
7768 memcpy(&vsi
->info
, &ctxt
.info
, sizeof(ctxt
.info
));
7769 vsi
->info
.valid_sections
= 0;
7770 vsi
->seid
= ctxt
.seid
;
7771 vsi
->id
= ctxt
.vsi_number
;
7774 /* If macvlan filters already exist, force them to get loaded */
7775 list_for_each_entry_safe(f
, ftmp
, &vsi
->mac_filter_list
, list
) {
7779 if (f
->is_laa
&& vsi
->type
== I40E_VSI_MAIN
) {
7780 struct i40e_aqc_remove_macvlan_element_data element
;
7782 memset(&element
, 0, sizeof(element
));
7783 ether_addr_copy(element
.mac_addr
, f
->macaddr
);
7784 element
.flags
= I40E_AQC_MACVLAN_DEL_PERFECT_MATCH
;
7785 ret
= i40e_aq_remove_macvlan(hw
, vsi
->seid
,
7788 /* some older FW has a different default */
7790 I40E_AQC_MACVLAN_DEL_IGNORE_VLAN
;
7791 i40e_aq_remove_macvlan(hw
, vsi
->seid
,
7795 i40e_aq_mac_address_write(hw
,
7796 I40E_AQC_WRITE_TYPE_LAA_WOL
,
7801 vsi
->flags
|= I40E_VSI_FLAG_FILTER_CHANGED
;
7802 pf
->flags
|= I40E_FLAG_FILTER_SYNC
;
7805 /* Update VSI BW information */
7806 ret
= i40e_vsi_get_bw_info(vsi
);
7808 dev_info(&pf
->pdev
->dev
,
7809 "couldn't get vsi bw info, err %d, aq_err %d\n",
7810 ret
, pf
->hw
.aq
.asq_last_status
);
7811 /* VSI is already added so not tearing that up */
7820 * i40e_vsi_release - Delete a VSI and free its resources
7821 * @vsi: the VSI being removed
7823 * Returns 0 on success or < 0 on error
7825 int i40e_vsi_release(struct i40e_vsi
*vsi
)
7827 struct i40e_mac_filter
*f
, *ftmp
;
7828 struct i40e_veb
*veb
= NULL
;
7835 /* release of a VEB-owner or last VSI is not allowed */
7836 if (vsi
->flags
& I40E_VSI_FLAG_VEB_OWNER
) {
7837 dev_info(&pf
->pdev
->dev
, "VSI %d has existing VEB %d\n",
7838 vsi
->seid
, vsi
->uplink_seid
);
7841 if (vsi
== pf
->vsi
[pf
->lan_vsi
] &&
7842 !test_bit(__I40E_DOWN
, &pf
->state
)) {
7843 dev_info(&pf
->pdev
->dev
, "Can't remove PF VSI\n");
7847 uplink_seid
= vsi
->uplink_seid
;
7848 if (vsi
->type
!= I40E_VSI_SRIOV
) {
7849 if (vsi
->netdev_registered
) {
7850 vsi
->netdev_registered
= false;
7852 /* results in a call to i40e_close() */
7853 unregister_netdev(vsi
->netdev
);
7856 i40e_vsi_close(vsi
);
7858 i40e_vsi_disable_irq(vsi
);
7861 list_for_each_entry_safe(f
, ftmp
, &vsi
->mac_filter_list
, list
)
7862 i40e_del_filter(vsi
, f
->macaddr
, f
->vlan
,
7863 f
->is_vf
, f
->is_netdev
);
7864 i40e_sync_vsi_filters(vsi
);
7866 i40e_vsi_delete(vsi
);
7867 i40e_vsi_free_q_vectors(vsi
);
7869 free_netdev(vsi
->netdev
);
7872 i40e_vsi_clear_rings(vsi
);
7873 i40e_vsi_clear(vsi
);
7875 /* If this was the last thing on the VEB, except for the
7876 * controlling VSI, remove the VEB, which puts the controlling
7877 * VSI onto the next level down in the switch.
7879 * Well, okay, there's one more exception here: don't remove
7880 * the orphan VEBs yet. We'll wait for an explicit remove request
7881 * from up the network stack.
7883 for (n
= 0, i
= 0; i
< pf
->num_alloc_vsi
; i
++) {
7885 pf
->vsi
[i
]->uplink_seid
== uplink_seid
&&
7886 (pf
->vsi
[i
]->flags
& I40E_VSI_FLAG_VEB_OWNER
) == 0) {
7887 n
++; /* count the VSIs */
7890 for (i
= 0; i
< I40E_MAX_VEB
; i
++) {
7893 if (pf
->veb
[i
]->uplink_seid
== uplink_seid
)
7894 n
++; /* count the VEBs */
7895 if (pf
->veb
[i
]->seid
== uplink_seid
)
7898 if (n
== 0 && veb
&& veb
->uplink_seid
!= 0)
7899 i40e_veb_release(veb
);
7905 * i40e_vsi_setup_vectors - Set up the q_vectors for the given VSI
7906 * @vsi: ptr to the VSI
7908 * This should only be called after i40e_vsi_mem_alloc() which allocates the
7909 * corresponding SW VSI structure and initializes num_queue_pairs for the
7910 * newly allocated VSI.
7912 * Returns 0 on success or negative on failure
7914 static int i40e_vsi_setup_vectors(struct i40e_vsi
*vsi
)
7917 struct i40e_pf
*pf
= vsi
->back
;
7919 if (vsi
->q_vectors
[0]) {
7920 dev_info(&pf
->pdev
->dev
, "VSI %d has existing q_vectors\n",
7925 if (vsi
->base_vector
) {
7926 dev_info(&pf
->pdev
->dev
, "VSI %d has non-zero base vector %d\n",
7927 vsi
->seid
, vsi
->base_vector
);
7931 ret
= i40e_vsi_alloc_q_vectors(vsi
);
7933 dev_info(&pf
->pdev
->dev
,
7934 "failed to allocate %d q_vector for VSI %d, ret=%d\n",
7935 vsi
->num_q_vectors
, vsi
->seid
, ret
);
7936 vsi
->num_q_vectors
= 0;
7937 goto vector_setup_out
;
7940 if (vsi
->num_q_vectors
)
7941 vsi
->base_vector
= i40e_get_lump(pf
, pf
->irq_pile
,
7942 vsi
->num_q_vectors
, vsi
->idx
);
7943 if (vsi
->base_vector
< 0) {
7944 dev_info(&pf
->pdev
->dev
,
7945 "failed to get queue tracking for VSI %d, err=%d\n",
7946 vsi
->seid
, vsi
->base_vector
);
7947 i40e_vsi_free_q_vectors(vsi
);
7949 goto vector_setup_out
;
7957 * i40e_vsi_reinit_setup - return and reallocate resources for a VSI
7958 * @vsi: pointer to the vsi.
7960 * This re-allocates a vsi's queue resources.
7962 * Returns pointer to the successfully allocated and configured VSI sw struct
7963 * on success, otherwise returns NULL on failure.
7965 static struct i40e_vsi
*i40e_vsi_reinit_setup(struct i40e_vsi
*vsi
)
7967 struct i40e_pf
*pf
= vsi
->back
;
7971 i40e_put_lump(pf
->qp_pile
, vsi
->base_queue
, vsi
->idx
);
7972 i40e_vsi_clear_rings(vsi
);
7974 i40e_vsi_free_arrays(vsi
, false);
7975 i40e_set_num_rings_in_vsi(vsi
);
7976 ret
= i40e_vsi_alloc_arrays(vsi
, false);
7980 ret
= i40e_get_lump(pf
, pf
->qp_pile
, vsi
->alloc_queue_pairs
, vsi
->idx
);
7982 dev_info(&pf
->pdev
->dev
, "VSI %d get_lump failed %d\n",
7986 vsi
->base_queue
= ret
;
7988 /* Update the FW view of the VSI. Force a reset of TC and queue
7989 * layout configurations.
7991 enabled_tc
= pf
->vsi
[pf
->lan_vsi
]->tc_config
.enabled_tc
;
7992 pf
->vsi
[pf
->lan_vsi
]->tc_config
.enabled_tc
= 0;
7993 pf
->vsi
[pf
->lan_vsi
]->seid
= pf
->main_vsi_seid
;
7994 i40e_vsi_config_tc(pf
->vsi
[pf
->lan_vsi
], enabled_tc
);
7996 /* assign it some queues */
7997 ret
= i40e_alloc_rings(vsi
);
8001 /* map all of the rings to the q_vectors */
8002 i40e_vsi_map_rings_to_vectors(vsi
);
8006 i40e_vsi_free_q_vectors(vsi
);
8007 if (vsi
->netdev_registered
) {
8008 vsi
->netdev_registered
= false;
8009 unregister_netdev(vsi
->netdev
);
8010 free_netdev(vsi
->netdev
);
8013 i40e_aq_delete_element(&pf
->hw
, vsi
->seid
, NULL
);
8015 i40e_vsi_clear(vsi
);
8020 * i40e_vsi_setup - Set up a VSI by a given type
8021 * @pf: board private structure
8023 * @uplink_seid: the switch element to link to
8024 * @param1: usage depends upon VSI type. For VF types, indicates VF id
8026 * This allocates the sw VSI structure and its queue resources, then add a VSI
8027 * to the identified VEB.
8029 * Returns pointer to the successfully allocated and configure VSI sw struct on
8030 * success, otherwise returns NULL on failure.
8032 struct i40e_vsi
*i40e_vsi_setup(struct i40e_pf
*pf
, u8 type
,
8033 u16 uplink_seid
, u32 param1
)
8035 struct i40e_vsi
*vsi
= NULL
;
8036 struct i40e_veb
*veb
= NULL
;
8040 /* The requested uplink_seid must be either
8041 * - the PF's port seid
8042 * no VEB is needed because this is the PF
8043 * or this is a Flow Director special case VSI
8044 * - seid of an existing VEB
8045 * - seid of a VSI that owns an existing VEB
8046 * - seid of a VSI that doesn't own a VEB
8047 * a new VEB is created and the VSI becomes the owner
8048 * - seid of the PF VSI, which is what creates the first VEB
8049 * this is a special case of the previous
8051 * Find which uplink_seid we were given and create a new VEB if needed
8053 for (i
= 0; i
< I40E_MAX_VEB
; i
++) {
8054 if (pf
->veb
[i
] && pf
->veb
[i
]->seid
== uplink_seid
) {
8060 if (!veb
&& uplink_seid
!= pf
->mac_seid
) {
8062 for (i
= 0; i
< pf
->num_alloc_vsi
; i
++) {
8063 if (pf
->vsi
[i
] && pf
->vsi
[i
]->seid
== uplink_seid
) {
8069 dev_info(&pf
->pdev
->dev
, "no such uplink_seid %d\n",
8074 if (vsi
->uplink_seid
== pf
->mac_seid
)
8075 veb
= i40e_veb_setup(pf
, 0, pf
->mac_seid
, vsi
->seid
,
8076 vsi
->tc_config
.enabled_tc
);
8077 else if ((vsi
->flags
& I40E_VSI_FLAG_VEB_OWNER
) == 0)
8078 veb
= i40e_veb_setup(pf
, 0, vsi
->uplink_seid
, vsi
->seid
,
8079 vsi
->tc_config
.enabled_tc
);
8081 for (i
= 0; i
< I40E_MAX_VEB
&& !veb
; i
++) {
8082 if (pf
->veb
[i
] && pf
->veb
[i
]->seid
== vsi
->uplink_seid
)
8086 dev_info(&pf
->pdev
->dev
, "couldn't add VEB\n");
8090 vsi
->flags
|= I40E_VSI_FLAG_VEB_OWNER
;
8091 uplink_seid
= veb
->seid
;
8094 /* get vsi sw struct */
8095 v_idx
= i40e_vsi_mem_alloc(pf
, type
);
8098 vsi
= pf
->vsi
[v_idx
];
8102 vsi
->veb_idx
= (veb
? veb
->idx
: I40E_NO_VEB
);
8104 if (type
== I40E_VSI_MAIN
)
8105 pf
->lan_vsi
= v_idx
;
8106 else if (type
== I40E_VSI_SRIOV
)
8107 vsi
->vf_id
= param1
;
8108 /* assign it some queues */
8109 ret
= i40e_get_lump(pf
, pf
->qp_pile
, vsi
->alloc_queue_pairs
,
8112 dev_info(&pf
->pdev
->dev
, "VSI %d get_lump failed %d\n",
8116 vsi
->base_queue
= ret
;
8118 /* get a VSI from the hardware */
8119 vsi
->uplink_seid
= uplink_seid
;
8120 ret
= i40e_add_vsi(vsi
);
8124 switch (vsi
->type
) {
8125 /* setup the netdev if needed */
8127 case I40E_VSI_VMDQ2
:
8129 ret
= i40e_config_netdev(vsi
);
8132 ret
= register_netdev(vsi
->netdev
);
8135 vsi
->netdev_registered
= true;
8136 netif_carrier_off(vsi
->netdev
);
8137 #ifdef CONFIG_I40E_DCB
8138 /* Setup DCB netlink interface */
8139 i40e_dcbnl_setup(vsi
);
8140 #endif /* CONFIG_I40E_DCB */
8144 /* set up vectors and rings if needed */
8145 ret
= i40e_vsi_setup_vectors(vsi
);
8149 ret
= i40e_alloc_rings(vsi
);
8153 /* map all of the rings to the q_vectors */
8154 i40e_vsi_map_rings_to_vectors(vsi
);
8156 i40e_vsi_reset_stats(vsi
);
8160 /* no netdev or rings for the other VSI types */
8167 i40e_vsi_free_q_vectors(vsi
);
8169 if (vsi
->netdev_registered
) {
8170 vsi
->netdev_registered
= false;
8171 unregister_netdev(vsi
->netdev
);
8172 free_netdev(vsi
->netdev
);
8176 i40e_aq_delete_element(&pf
->hw
, vsi
->seid
, NULL
);
8178 i40e_vsi_clear(vsi
);
8184 * i40e_veb_get_bw_info - Query VEB BW information
8185 * @veb: the veb to query
8187 * Query the Tx scheduler BW configuration data for given VEB
8189 static int i40e_veb_get_bw_info(struct i40e_veb
*veb
)
8191 struct i40e_aqc_query_switching_comp_ets_config_resp ets_data
;
8192 struct i40e_aqc_query_switching_comp_bw_config_resp bw_data
;
8193 struct i40e_pf
*pf
= veb
->pf
;
8194 struct i40e_hw
*hw
= &pf
->hw
;
8199 ret
= i40e_aq_query_switch_comp_bw_config(hw
, veb
->seid
,
8202 dev_info(&pf
->pdev
->dev
,
8203 "query veb bw config failed, aq_err=%d\n",
8204 hw
->aq
.asq_last_status
);
8208 ret
= i40e_aq_query_switch_comp_ets_config(hw
, veb
->seid
,
8211 dev_info(&pf
->pdev
->dev
,
8212 "query veb bw ets config failed, aq_err=%d\n",
8213 hw
->aq
.asq_last_status
);
8217 veb
->bw_limit
= le16_to_cpu(ets_data
.port_bw_limit
);
8218 veb
->bw_max_quanta
= ets_data
.tc_bw_max
;
8219 veb
->is_abs_credits
= bw_data
.absolute_credits_enable
;
8220 tc_bw_max
= le16_to_cpu(bw_data
.tc_bw_max
[0]) |
8221 (le16_to_cpu(bw_data
.tc_bw_max
[1]) << 16);
8222 for (i
= 0; i
< I40E_MAX_TRAFFIC_CLASS
; i
++) {
8223 veb
->bw_tc_share_credits
[i
] = bw_data
.tc_bw_share_credits
[i
];
8224 veb
->bw_tc_limit_credits
[i
] =
8225 le16_to_cpu(bw_data
.tc_bw_limits
[i
]);
8226 veb
->bw_tc_max_quanta
[i
] = ((tc_bw_max
>> (i
*4)) & 0x7);
8234 * i40e_veb_mem_alloc - Allocates the next available struct veb in the PF
8235 * @pf: board private structure
8237 * On error: returns error code (negative)
8238 * On success: returns vsi index in PF (positive)
8240 static int i40e_veb_mem_alloc(struct i40e_pf
*pf
)
8243 struct i40e_veb
*veb
;
8246 /* Need to protect the allocation of switch elements at the PF level */
8247 mutex_lock(&pf
->switch_mutex
);
8249 /* VEB list may be fragmented if VEB creation/destruction has
8250 * been happening. We can afford to do a quick scan to look
8251 * for any free slots in the list.
8253 * find next empty veb slot, looping back around if necessary
8256 while ((i
< I40E_MAX_VEB
) && (pf
->veb
[i
] != NULL
))
8258 if (i
>= I40E_MAX_VEB
) {
8260 goto err_alloc_veb
; /* out of VEB slots! */
8263 veb
= kzalloc(sizeof(*veb
), GFP_KERNEL
);
8270 veb
->enabled_tc
= 1;
8275 mutex_unlock(&pf
->switch_mutex
);
8280 * i40e_switch_branch_release - Delete a branch of the switch tree
8281 * @branch: where to start deleting
8283 * This uses recursion to find the tips of the branch to be
8284 * removed, deleting until we get back to and can delete this VEB.
8286 static void i40e_switch_branch_release(struct i40e_veb
*branch
)
8288 struct i40e_pf
*pf
= branch
->pf
;
8289 u16 branch_seid
= branch
->seid
;
8290 u16 veb_idx
= branch
->idx
;
8293 /* release any VEBs on this VEB - RECURSION */
8294 for (i
= 0; i
< I40E_MAX_VEB
; i
++) {
8297 if (pf
->veb
[i
]->uplink_seid
== branch
->seid
)
8298 i40e_switch_branch_release(pf
->veb
[i
]);
8301 /* Release the VSIs on this VEB, but not the owner VSI.
8303 * NOTE: Removing the last VSI on a VEB has the SIDE EFFECT of removing
8304 * the VEB itself, so don't use (*branch) after this loop.
8306 for (i
= 0; i
< pf
->num_alloc_vsi
; i
++) {
8309 if (pf
->vsi
[i
]->uplink_seid
== branch_seid
&&
8310 (pf
->vsi
[i
]->flags
& I40E_VSI_FLAG_VEB_OWNER
) == 0) {
8311 i40e_vsi_release(pf
->vsi
[i
]);
8315 /* There's one corner case where the VEB might not have been
8316 * removed, so double check it here and remove it if needed.
8317 * This case happens if the veb was created from the debugfs
8318 * commands and no VSIs were added to it.
8320 if (pf
->veb
[veb_idx
])
8321 i40e_veb_release(pf
->veb
[veb_idx
]);
8325 * i40e_veb_clear - remove veb struct
8326 * @veb: the veb to remove
8328 static void i40e_veb_clear(struct i40e_veb
*veb
)
8334 struct i40e_pf
*pf
= veb
->pf
;
8336 mutex_lock(&pf
->switch_mutex
);
8337 if (pf
->veb
[veb
->idx
] == veb
)
8338 pf
->veb
[veb
->idx
] = NULL
;
8339 mutex_unlock(&pf
->switch_mutex
);
8346 * i40e_veb_release - Delete a VEB and free its resources
8347 * @veb: the VEB being removed
8349 void i40e_veb_release(struct i40e_veb
*veb
)
8351 struct i40e_vsi
*vsi
= NULL
;
8357 /* find the remaining VSI and check for extras */
8358 for (i
= 0; i
< pf
->num_alloc_vsi
; i
++) {
8359 if (pf
->vsi
[i
] && pf
->vsi
[i
]->uplink_seid
== veb
->seid
) {
8365 dev_info(&pf
->pdev
->dev
,
8366 "can't remove VEB %d with %d VSIs left\n",
8371 /* move the remaining VSI to uplink veb */
8372 vsi
->flags
&= ~I40E_VSI_FLAG_VEB_OWNER
;
8373 if (veb
->uplink_seid
) {
8374 vsi
->uplink_seid
= veb
->uplink_seid
;
8375 if (veb
->uplink_seid
== pf
->mac_seid
)
8376 vsi
->veb_idx
= I40E_NO_VEB
;
8378 vsi
->veb_idx
= veb
->veb_idx
;
8381 vsi
->uplink_seid
= pf
->vsi
[pf
->lan_vsi
]->uplink_seid
;
8382 vsi
->veb_idx
= pf
->vsi
[pf
->lan_vsi
]->veb_idx
;
8385 i40e_aq_delete_element(&pf
->hw
, veb
->seid
, NULL
);
8386 i40e_veb_clear(veb
);
8390 * i40e_add_veb - create the VEB in the switch
8391 * @veb: the VEB to be instantiated
8392 * @vsi: the controlling VSI
8394 static int i40e_add_veb(struct i40e_veb
*veb
, struct i40e_vsi
*vsi
)
8396 bool is_default
= false;
8397 bool is_cloud
= false;
8400 /* get a VEB from the hardware */
8401 ret
= i40e_aq_add_veb(&veb
->pf
->hw
, veb
->uplink_seid
, vsi
->seid
,
8402 veb
->enabled_tc
, is_default
,
8403 is_cloud
, &veb
->seid
, NULL
);
8405 dev_info(&veb
->pf
->pdev
->dev
,
8406 "couldn't add VEB, err %d, aq_err %d\n",
8407 ret
, veb
->pf
->hw
.aq
.asq_last_status
);
8411 /* get statistics counter */
8412 ret
= i40e_aq_get_veb_parameters(&veb
->pf
->hw
, veb
->seid
, NULL
, NULL
,
8413 &veb
->stats_idx
, NULL
, NULL
, NULL
);
8415 dev_info(&veb
->pf
->pdev
->dev
,
8416 "couldn't get VEB statistics idx, err %d, aq_err %d\n",
8417 ret
, veb
->pf
->hw
.aq
.asq_last_status
);
8420 ret
= i40e_veb_get_bw_info(veb
);
8422 dev_info(&veb
->pf
->pdev
->dev
,
8423 "couldn't get VEB bw info, err %d, aq_err %d\n",
8424 ret
, veb
->pf
->hw
.aq
.asq_last_status
);
8425 i40e_aq_delete_element(&veb
->pf
->hw
, veb
->seid
, NULL
);
8429 vsi
->uplink_seid
= veb
->seid
;
8430 vsi
->veb_idx
= veb
->idx
;
8431 vsi
->flags
|= I40E_VSI_FLAG_VEB_OWNER
;
8437 * i40e_veb_setup - Set up a VEB
8438 * @pf: board private structure
8439 * @flags: VEB setup flags
8440 * @uplink_seid: the switch element to link to
8441 * @vsi_seid: the initial VSI seid
8442 * @enabled_tc: Enabled TC bit-map
8444 * This allocates the sw VEB structure and links it into the switch
8445 * It is possible and legal for this to be a duplicate of an already
8446 * existing VEB. It is also possible for both uplink and vsi seids
8447 * to be zero, in order to create a floating VEB.
8449 * Returns pointer to the successfully allocated VEB sw struct on
8450 * success, otherwise returns NULL on failure.
8452 struct i40e_veb
*i40e_veb_setup(struct i40e_pf
*pf
, u16 flags
,
8453 u16 uplink_seid
, u16 vsi_seid
,
8456 struct i40e_veb
*veb
, *uplink_veb
= NULL
;
8457 int vsi_idx
, veb_idx
;
8460 /* if one seid is 0, the other must be 0 to create a floating relay */
8461 if ((uplink_seid
== 0 || vsi_seid
== 0) &&
8462 (uplink_seid
+ vsi_seid
!= 0)) {
8463 dev_info(&pf
->pdev
->dev
,
8464 "one, not both seid's are 0: uplink=%d vsi=%d\n",
8465 uplink_seid
, vsi_seid
);
8469 /* make sure there is such a vsi and uplink */
8470 for (vsi_idx
= 0; vsi_idx
< pf
->num_alloc_vsi
; vsi_idx
++)
8471 if (pf
->vsi
[vsi_idx
] && pf
->vsi
[vsi_idx
]->seid
== vsi_seid
)
8473 if (vsi_idx
>= pf
->num_alloc_vsi
&& vsi_seid
!= 0) {
8474 dev_info(&pf
->pdev
->dev
, "vsi seid %d not found\n",
8479 if (uplink_seid
&& uplink_seid
!= pf
->mac_seid
) {
8480 for (veb_idx
= 0; veb_idx
< I40E_MAX_VEB
; veb_idx
++) {
8481 if (pf
->veb
[veb_idx
] &&
8482 pf
->veb
[veb_idx
]->seid
== uplink_seid
) {
8483 uplink_veb
= pf
->veb
[veb_idx
];
8488 dev_info(&pf
->pdev
->dev
,
8489 "uplink seid %d not found\n", uplink_seid
);
8494 /* get veb sw struct */
8495 veb_idx
= i40e_veb_mem_alloc(pf
);
8498 veb
= pf
->veb
[veb_idx
];
8500 veb
->uplink_seid
= uplink_seid
;
8501 veb
->veb_idx
= (uplink_veb
? uplink_veb
->idx
: I40E_NO_VEB
);
8502 veb
->enabled_tc
= (enabled_tc
? enabled_tc
: 0x1);
8504 /* create the VEB in the switch */
8505 ret
= i40e_add_veb(veb
, pf
->vsi
[vsi_idx
]);
8508 if (vsi_idx
== pf
->lan_vsi
)
8509 pf
->lan_veb
= veb
->idx
;
8514 i40e_veb_clear(veb
);
8520 * i40e_setup_pf_switch_element - set pf vars based on switch type
8521 * @pf: board private structure
8522 * @ele: element we are building info from
8523 * @num_reported: total number of elements
8524 * @printconfig: should we print the contents
8526 * helper function to assist in extracting a few useful SEID values.
8528 static void i40e_setup_pf_switch_element(struct i40e_pf
*pf
,
8529 struct i40e_aqc_switch_config_element_resp
*ele
,
8530 u16 num_reported
, bool printconfig
)
8532 u16 downlink_seid
= le16_to_cpu(ele
->downlink_seid
);
8533 u16 uplink_seid
= le16_to_cpu(ele
->uplink_seid
);
8534 u8 element_type
= ele
->element_type
;
8535 u16 seid
= le16_to_cpu(ele
->seid
);
8538 dev_info(&pf
->pdev
->dev
,
8539 "type=%d seid=%d uplink=%d downlink=%d\n",
8540 element_type
, seid
, uplink_seid
, downlink_seid
);
8542 switch (element_type
) {
8543 case I40E_SWITCH_ELEMENT_TYPE_MAC
:
8544 pf
->mac_seid
= seid
;
8546 case I40E_SWITCH_ELEMENT_TYPE_VEB
:
8548 if (uplink_seid
!= pf
->mac_seid
)
8550 if (pf
->lan_veb
== I40E_NO_VEB
) {
8553 /* find existing or else empty VEB */
8554 for (v
= 0; v
< I40E_MAX_VEB
; v
++) {
8555 if (pf
->veb
[v
] && (pf
->veb
[v
]->seid
== seid
)) {
8560 if (pf
->lan_veb
== I40E_NO_VEB
) {
8561 v
= i40e_veb_mem_alloc(pf
);
8568 pf
->veb
[pf
->lan_veb
]->seid
= seid
;
8569 pf
->veb
[pf
->lan_veb
]->uplink_seid
= pf
->mac_seid
;
8570 pf
->veb
[pf
->lan_veb
]->pf
= pf
;
8571 pf
->veb
[pf
->lan_veb
]->veb_idx
= I40E_NO_VEB
;
8573 case I40E_SWITCH_ELEMENT_TYPE_VSI
:
8574 if (num_reported
!= 1)
8576 /* This is immediately after a reset so we can assume this is
8579 pf
->mac_seid
= uplink_seid
;
8580 pf
->pf_seid
= downlink_seid
;
8581 pf
->main_vsi_seid
= seid
;
8583 dev_info(&pf
->pdev
->dev
,
8584 "pf_seid=%d main_vsi_seid=%d\n",
8585 pf
->pf_seid
, pf
->main_vsi_seid
);
8587 case I40E_SWITCH_ELEMENT_TYPE_PF
:
8588 case I40E_SWITCH_ELEMENT_TYPE_VF
:
8589 case I40E_SWITCH_ELEMENT_TYPE_EMP
:
8590 case I40E_SWITCH_ELEMENT_TYPE_BMC
:
8591 case I40E_SWITCH_ELEMENT_TYPE_PE
:
8592 case I40E_SWITCH_ELEMENT_TYPE_PA
:
8593 /* ignore these for now */
8596 dev_info(&pf
->pdev
->dev
, "unknown element type=%d seid=%d\n",
8597 element_type
, seid
);
8603 * i40e_fetch_switch_configuration - Get switch config from firmware
8604 * @pf: board private structure
8605 * @printconfig: should we print the contents
8607 * Get the current switch configuration from the device and
8608 * extract a few useful SEID values.
8610 int i40e_fetch_switch_configuration(struct i40e_pf
*pf
, bool printconfig
)
8612 struct i40e_aqc_get_switch_config_resp
*sw_config
;
8618 aq_buf
= kzalloc(I40E_AQ_LARGE_BUF
, GFP_KERNEL
);
8622 sw_config
= (struct i40e_aqc_get_switch_config_resp
*)aq_buf
;
8624 u16 num_reported
, num_total
;
8626 ret
= i40e_aq_get_switch_config(&pf
->hw
, sw_config
,
8630 dev_info(&pf
->pdev
->dev
,
8631 "get switch config failed %d aq_err=%x\n",
8632 ret
, pf
->hw
.aq
.asq_last_status
);
8637 num_reported
= le16_to_cpu(sw_config
->header
.num_reported
);
8638 num_total
= le16_to_cpu(sw_config
->header
.num_total
);
8641 dev_info(&pf
->pdev
->dev
,
8642 "header: %d reported %d total\n",
8643 num_reported
, num_total
);
8645 for (i
= 0; i
< num_reported
; i
++) {
8646 struct i40e_aqc_switch_config_element_resp
*ele
=
8647 &sw_config
->element
[i
];
8649 i40e_setup_pf_switch_element(pf
, ele
, num_reported
,
8652 } while (next_seid
!= 0);
8659 * i40e_setup_pf_switch - Setup the HW switch on startup or after reset
8660 * @pf: board private structure
8661 * @reinit: if the Main VSI needs to re-initialized.
8663 * Returns 0 on success, negative value on failure
8665 static int i40e_setup_pf_switch(struct i40e_pf
*pf
, bool reinit
)
8669 /* find out what's out there already */
8670 ret
= i40e_fetch_switch_configuration(pf
, false);
8672 dev_info(&pf
->pdev
->dev
,
8673 "couldn't fetch switch config, err %d, aq_err %d\n",
8674 ret
, pf
->hw
.aq
.asq_last_status
);
8677 i40e_pf_reset_stats(pf
);
8679 /* first time setup */
8680 if (pf
->lan_vsi
== I40E_NO_VSI
|| reinit
) {
8681 struct i40e_vsi
*vsi
= NULL
;
8684 /* Set up the PF VSI associated with the PF's main VSI
8685 * that is already in the HW switch
8687 if (pf
->lan_veb
!= I40E_NO_VEB
&& pf
->veb
[pf
->lan_veb
])
8688 uplink_seid
= pf
->veb
[pf
->lan_veb
]->seid
;
8690 uplink_seid
= pf
->mac_seid
;
8691 if (pf
->lan_vsi
== I40E_NO_VSI
)
8692 vsi
= i40e_vsi_setup(pf
, I40E_VSI_MAIN
, uplink_seid
, 0);
8694 vsi
= i40e_vsi_reinit_setup(pf
->vsi
[pf
->lan_vsi
]);
8696 dev_info(&pf
->pdev
->dev
, "setup of MAIN VSI failed\n");
8697 i40e_fdir_teardown(pf
);
8701 /* force a reset of TC and queue layout configurations */
8702 u8 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 i40e_vlan_stripping_disable(pf
->vsi
[pf
->lan_vsi
]);
8709 i40e_fdir_sb_setup(pf
);
8711 /* Setup static PF queue filter control settings */
8712 ret
= i40e_setup_pf_filter_control(pf
);
8714 dev_info(&pf
->pdev
->dev
, "setup_pf_filter_control failed: %d\n",
8716 /* Failure here should not stop continuing other steps */
8719 /* enable RSS in the HW, even for only one queue, as the stack can use
8722 if ((pf
->flags
& I40E_FLAG_RSS_ENABLED
))
8723 i40e_config_rss(pf
);
8725 /* fill in link information and enable LSE reporting */
8726 i40e_update_link_info(&pf
->hw
, true);
8727 i40e_link_event(pf
);
8729 /* Initialize user-specific link properties */
8730 pf
->fc_autoneg_status
= ((pf
->hw
.phy
.link_info
.an_info
&
8731 I40E_AQ_AN_COMPLETED
) ? true : false);
8733 /* fill in link information and enable LSE reporting */
8734 i40e_update_link_info(&pf
->hw
, true);
8735 i40e_link_event(pf
);
8737 /* Initialize user-specific link properties */
8738 pf
->fc_autoneg_status
= ((pf
->hw
.phy
.link_info
.an_info
&
8739 I40E_AQ_AN_COMPLETED
) ? true : false);
8747 * i40e_determine_queue_usage - Work out queue distribution
8748 * @pf: board private structure
8750 static void i40e_determine_queue_usage(struct i40e_pf
*pf
)
8754 pf
->num_lan_qps
= 0;
8756 pf
->num_fcoe_qps
= 0;
8759 /* Find the max queues to be put into basic use. We'll always be
8760 * using TC0, whether or not DCB is running, and TC0 will get the
8763 queues_left
= pf
->hw
.func_caps
.num_tx_qp
;
8765 if ((queues_left
== 1) ||
8766 !(pf
->flags
& I40E_FLAG_MSIX_ENABLED
)) {
8767 /* one qp for PF, no queues for anything else */
8769 pf
->rss_size
= pf
->num_lan_qps
= 1;
8771 /* make sure all the fancies are disabled */
8772 pf
->flags
&= ~(I40E_FLAG_RSS_ENABLED
|
8774 I40E_FLAG_FCOE_ENABLED
|
8776 I40E_FLAG_FD_SB_ENABLED
|
8777 I40E_FLAG_FD_ATR_ENABLED
|
8778 I40E_FLAG_DCB_CAPABLE
|
8779 I40E_FLAG_SRIOV_ENABLED
|
8780 I40E_FLAG_VMDQ_ENABLED
);
8781 } else if (!(pf
->flags
& (I40E_FLAG_RSS_ENABLED
|
8782 I40E_FLAG_FD_SB_ENABLED
|
8783 I40E_FLAG_FD_ATR_ENABLED
|
8784 I40E_FLAG_DCB_CAPABLE
))) {
8786 pf
->rss_size
= pf
->num_lan_qps
= 1;
8787 queues_left
-= pf
->num_lan_qps
;
8789 pf
->flags
&= ~(I40E_FLAG_RSS_ENABLED
|
8791 I40E_FLAG_FCOE_ENABLED
|
8793 I40E_FLAG_FD_SB_ENABLED
|
8794 I40E_FLAG_FD_ATR_ENABLED
|
8795 I40E_FLAG_DCB_ENABLED
|
8796 I40E_FLAG_VMDQ_ENABLED
);
8798 /* Not enough queues for all TCs */
8799 if ((pf
->flags
& I40E_FLAG_DCB_CAPABLE
) &&
8800 (queues_left
< I40E_MAX_TRAFFIC_CLASS
)) {
8801 pf
->flags
&= ~I40E_FLAG_DCB_CAPABLE
;
8802 dev_info(&pf
->pdev
->dev
, "not enough queues for DCB. DCB is disabled.\n");
8804 pf
->num_lan_qps
= pf
->rss_size_max
;
8805 queues_left
-= pf
->num_lan_qps
;
8809 if (pf
->flags
& I40E_FLAG_FCOE_ENABLED
) {
8810 if (I40E_DEFAULT_FCOE
<= queues_left
) {
8811 pf
->num_fcoe_qps
= I40E_DEFAULT_FCOE
;
8812 } else if (I40E_MINIMUM_FCOE
<= queues_left
) {
8813 pf
->num_fcoe_qps
= I40E_MINIMUM_FCOE
;
8815 pf
->num_fcoe_qps
= 0;
8816 pf
->flags
&= ~I40E_FLAG_FCOE_ENABLED
;
8817 dev_info(&pf
->pdev
->dev
, "not enough queues for FCoE. FCoE feature will be disabled\n");
8820 queues_left
-= pf
->num_fcoe_qps
;
8824 if (pf
->flags
& I40E_FLAG_FD_SB_ENABLED
) {
8825 if (queues_left
> 1) {
8826 queues_left
-= 1; /* save 1 queue for FD */
8828 pf
->flags
&= ~I40E_FLAG_FD_SB_ENABLED
;
8829 dev_info(&pf
->pdev
->dev
, "not enough queues for Flow Director. Flow Director feature is disabled\n");
8833 if ((pf
->flags
& I40E_FLAG_SRIOV_ENABLED
) &&
8834 pf
->num_vf_qps
&& pf
->num_req_vfs
&& queues_left
) {
8835 pf
->num_req_vfs
= min_t(int, pf
->num_req_vfs
,
8836 (queues_left
/ pf
->num_vf_qps
));
8837 queues_left
-= (pf
->num_req_vfs
* pf
->num_vf_qps
);
8840 if ((pf
->flags
& I40E_FLAG_VMDQ_ENABLED
) &&
8841 pf
->num_vmdq_vsis
&& pf
->num_vmdq_qps
&& queues_left
) {
8842 pf
->num_vmdq_vsis
= min_t(int, pf
->num_vmdq_vsis
,
8843 (queues_left
/ pf
->num_vmdq_qps
));
8844 queues_left
-= (pf
->num_vmdq_vsis
* pf
->num_vmdq_qps
);
8847 pf
->queues_left
= queues_left
;
8849 dev_info(&pf
->pdev
->dev
, "fcoe queues = %d\n", pf
->num_fcoe_qps
);
8854 * i40e_setup_pf_filter_control - Setup PF static filter control
8855 * @pf: PF to be setup
8857 * i40e_setup_pf_filter_control sets up a pf's initial filter control
8858 * settings. If PE/FCoE are enabled then it will also set the per PF
8859 * based filter sizes required for them. It also enables Flow director,
8860 * ethertype and macvlan type filter settings for the pf.
8862 * Returns 0 on success, negative on failure
8864 static int i40e_setup_pf_filter_control(struct i40e_pf
*pf
)
8866 struct i40e_filter_control_settings
*settings
= &pf
->filter_settings
;
8868 settings
->hash_lut_size
= I40E_HASH_LUT_SIZE_128
;
8870 /* Flow Director is enabled */
8871 if (pf
->flags
& (I40E_FLAG_FD_SB_ENABLED
| I40E_FLAG_FD_ATR_ENABLED
))
8872 settings
->enable_fdir
= true;
8874 /* Ethtype and MACVLAN filters enabled for PF */
8875 settings
->enable_ethtype
= true;
8876 settings
->enable_macvlan
= true;
8878 if (i40e_set_filter_control(&pf
->hw
, settings
))
8884 #define INFO_STRING_LEN 255
8885 static void i40e_print_features(struct i40e_pf
*pf
)
8887 struct i40e_hw
*hw
= &pf
->hw
;
8890 string
= kzalloc(INFO_STRING_LEN
, GFP_KERNEL
);
8892 dev_err(&pf
->pdev
->dev
, "Features string allocation failed\n");
8898 buf
+= sprintf(string
, "Features: PF-id[%d] ", hw
->pf_id
);
8899 #ifdef CONFIG_PCI_IOV
8900 buf
+= sprintf(buf
, "VFs: %d ", pf
->num_req_vfs
);
8902 buf
+= sprintf(buf
, "VSIs: %d QP: %d ", pf
->hw
.func_caps
.num_vsis
,
8903 pf
->vsi
[pf
->lan_vsi
]->num_queue_pairs
);
8905 if (pf
->flags
& I40E_FLAG_RSS_ENABLED
)
8906 buf
+= sprintf(buf
, "RSS ");
8907 if (pf
->flags
& I40E_FLAG_FD_ATR_ENABLED
)
8908 buf
+= sprintf(buf
, "FD_ATR ");
8909 if (pf
->flags
& I40E_FLAG_FD_SB_ENABLED
) {
8910 buf
+= sprintf(buf
, "FD_SB ");
8911 buf
+= sprintf(buf
, "NTUPLE ");
8913 if (pf
->flags
& I40E_FLAG_DCB_CAPABLE
)
8914 buf
+= sprintf(buf
, "DCB ");
8915 if (pf
->flags
& I40E_FLAG_PTP
)
8916 buf
+= sprintf(buf
, "PTP ");
8918 if (pf
->flags
& I40E_FLAG_FCOE_ENABLED
)
8919 buf
+= sprintf(buf
, "FCOE ");
8922 BUG_ON(buf
> (string
+ INFO_STRING_LEN
));
8923 dev_info(&pf
->pdev
->dev
, "%s\n", string
);
8928 * i40e_probe - Device initialization routine
8929 * @pdev: PCI device information struct
8930 * @ent: entry in i40e_pci_tbl
8932 * i40e_probe initializes a pf identified by a pci_dev structure.
8933 * The OS initialization, configuring of the pf private structure,
8934 * and a hardware reset occur.
8936 * Returns 0 on success, negative on failure
8938 static int i40e_probe(struct pci_dev
*pdev
, const struct pci_device_id
*ent
)
8942 static u16 pfs_found
;
8948 err
= pci_enable_device_mem(pdev
);
8952 /* set up for high or low dma */
8953 err
= dma_set_mask_and_coherent(&pdev
->dev
, DMA_BIT_MASK(64));
8955 err
= dma_set_mask_and_coherent(&pdev
->dev
, DMA_BIT_MASK(32));
8958 "DMA configuration failed: 0x%x\n", err
);
8963 /* set up pci connections */
8964 err
= pci_request_selected_regions(pdev
, pci_select_bars(pdev
,
8965 IORESOURCE_MEM
), i40e_driver_name
);
8967 dev_info(&pdev
->dev
,
8968 "pci_request_selected_regions failed %d\n", err
);
8972 pci_enable_pcie_error_reporting(pdev
);
8973 pci_set_master(pdev
);
8975 /* Now that we have a PCI connection, we need to do the
8976 * low level device setup. This is primarily setting up
8977 * the Admin Queue structures and then querying for the
8978 * device's current profile information.
8980 pf
= kzalloc(sizeof(*pf
), GFP_KERNEL
);
8987 set_bit(__I40E_DOWN
, &pf
->state
);
8991 hw
->hw_addr
= ioremap(pci_resource_start(pdev
, 0),
8992 pci_resource_len(pdev
, 0));
8995 dev_info(&pdev
->dev
, "ioremap(0x%04x, 0x%04x) failed: 0x%x\n",
8996 (unsigned int)pci_resource_start(pdev
, 0),
8997 (unsigned int)pci_resource_len(pdev
, 0), err
);
9000 hw
->vendor_id
= pdev
->vendor
;
9001 hw
->device_id
= pdev
->device
;
9002 pci_read_config_byte(pdev
, PCI_REVISION_ID
, &hw
->revision_id
);
9003 hw
->subsystem_vendor_id
= pdev
->subsystem_vendor
;
9004 hw
->subsystem_device_id
= pdev
->subsystem_device
;
9005 hw
->bus
.device
= PCI_SLOT(pdev
->devfn
);
9006 hw
->bus
.func
= PCI_FUNC(pdev
->devfn
);
9007 pf
->instance
= pfs_found
;
9009 /* do a special CORER for clearing PXE mode once at init */
9010 if (hw
->revision_id
== 0 &&
9011 (rd32(hw
, I40E_GLLAN_RCTL_0
) & I40E_GLLAN_RCTL_0_PXE_MODE_MASK
)) {
9012 wr32(hw
, I40E_GLGEN_RTRIG
, I40E_GLGEN_RTRIG_CORER_MASK
);
9017 i40e_clear_pxe_mode(hw
);
9020 /* Reset here to make sure all is clean and to define PF 'n' */
9022 err
= i40e_pf_reset(hw
);
9024 dev_info(&pdev
->dev
, "Initial pf_reset failed: %d\n", err
);
9029 hw
->aq
.num_arq_entries
= I40E_AQ_LEN
;
9030 hw
->aq
.num_asq_entries
= I40E_AQ_LEN
;
9031 hw
->aq
.arq_buf_size
= I40E_MAX_AQ_BUF_SIZE
;
9032 hw
->aq
.asq_buf_size
= I40E_MAX_AQ_BUF_SIZE
;
9033 pf
->adminq_work_limit
= I40E_AQ_WORK_LIMIT
;
9034 snprintf(pf
->misc_int_name
, sizeof(pf
->misc_int_name
) - 1,
9036 dev_driver_string(&pf
->pdev
->dev
), pf
->hw
.pf_id
);
9038 err
= i40e_init_shared_code(hw
);
9040 dev_info(&pdev
->dev
, "init_shared_code failed: %d\n", err
);
9044 /* set up a default setting for link flow control */
9045 pf
->hw
.fc
.requested_mode
= I40E_FC_NONE
;
9047 err
= i40e_init_adminq(hw
);
9048 dev_info(&pdev
->dev
, "%s\n", i40e_fw_version_str(hw
));
9050 dev_info(&pdev
->dev
,
9051 "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");
9055 if (hw
->aq
.api_maj_ver
== I40E_FW_API_VERSION_MAJOR
&&
9056 hw
->aq
.api_min_ver
> I40E_FW_API_VERSION_MINOR
)
9057 dev_info(&pdev
->dev
,
9058 "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");
9059 else if (hw
->aq
.api_maj_ver
< I40E_FW_API_VERSION_MAJOR
||
9060 hw
->aq
.api_min_ver
< (I40E_FW_API_VERSION_MINOR
- 1))
9061 dev_info(&pdev
->dev
,
9062 "The driver for the device detected an older version of the NVM image than expected. Please update the NVM image.\n");
9065 i40e_verify_eeprom(pf
);
9067 /* Rev 0 hardware was never productized */
9068 if (hw
->revision_id
< 1)
9069 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");
9071 i40e_clear_pxe_mode(hw
);
9072 err
= i40e_get_capabilities(pf
);
9074 goto err_adminq_setup
;
9076 err
= i40e_sw_init(pf
);
9078 dev_info(&pdev
->dev
, "sw_init failed: %d\n", err
);
9082 err
= i40e_init_lan_hmc(hw
, hw
->func_caps
.num_tx_qp
,
9083 hw
->func_caps
.num_rx_qp
,
9084 pf
->fcoe_hmc_cntx_num
, pf
->fcoe_hmc_filt_num
);
9086 dev_info(&pdev
->dev
, "init_lan_hmc failed: %d\n", err
);
9087 goto err_init_lan_hmc
;
9090 err
= i40e_configure_lan_hmc(hw
, I40E_HMC_MODEL_DIRECT_ONLY
);
9092 dev_info(&pdev
->dev
, "configure_lan_hmc failed: %d\n", err
);
9094 goto err_configure_lan_hmc
;
9097 i40e_get_mac_addr(hw
, hw
->mac
.addr
);
9098 if (!is_valid_ether_addr(hw
->mac
.addr
)) {
9099 dev_info(&pdev
->dev
, "invalid MAC address %pM\n", hw
->mac
.addr
);
9103 dev_info(&pdev
->dev
, "MAC address: %pM\n", hw
->mac
.addr
);
9104 ether_addr_copy(hw
->mac
.perm_addr
, hw
->mac
.addr
);
9105 i40e_get_port_mac_addr(hw
, hw
->mac
.port_addr
);
9106 if (is_valid_ether_addr(hw
->mac
.port_addr
))
9107 pf
->flags
|= I40E_FLAG_PORT_ID_VALID
;
9109 err
= i40e_get_san_mac_addr(hw
, hw
->mac
.san_addr
);
9111 dev_info(&pdev
->dev
,
9112 "(non-fatal) SAN MAC retrieval failed: %d\n", err
);
9113 if (!is_valid_ether_addr(hw
->mac
.san_addr
)) {
9114 dev_warn(&pdev
->dev
, "invalid SAN MAC address %pM, falling back to LAN MAC\n",
9116 ether_addr_copy(hw
->mac
.san_addr
, hw
->mac
.addr
);
9118 dev_info(&pf
->pdev
->dev
, "SAN MAC: %pM\n", hw
->mac
.san_addr
);
9119 #endif /* I40E_FCOE */
9121 pci_set_drvdata(pdev
, pf
);
9122 pci_save_state(pdev
);
9123 #ifdef CONFIG_I40E_DCB
9124 err
= i40e_init_pf_dcb(pf
);
9126 dev_info(&pdev
->dev
, "init_pf_dcb failed: %d\n", err
);
9127 pf
->flags
&= ~I40E_FLAG_DCB_CAPABLE
;
9128 /* Continue without DCB enabled */
9130 #endif /* CONFIG_I40E_DCB */
9132 /* set up periodic task facility */
9133 setup_timer(&pf
->service_timer
, i40e_service_timer
, (unsigned long)pf
);
9134 pf
->service_timer_period
= HZ
;
9136 INIT_WORK(&pf
->service_task
, i40e_service_task
);
9137 clear_bit(__I40E_SERVICE_SCHED
, &pf
->state
);
9138 pf
->flags
|= I40E_FLAG_NEED_LINK_UPDATE
;
9139 pf
->link_check_timeout
= jiffies
;
9141 /* WoL defaults to disabled */
9143 device_set_wakeup_enable(&pf
->pdev
->dev
, pf
->wol_en
);
9145 /* set up the main switch operations */
9146 i40e_determine_queue_usage(pf
);
9147 i40e_init_interrupt_scheme(pf
);
9149 /* The number of VSIs reported by the FW is the minimum guaranteed
9150 * to us; HW supports far more and we share the remaining pool with
9151 * the other PFs. We allocate space for more than the guarantee with
9152 * the understanding that we might not get them all later.
9154 if (pf
->hw
.func_caps
.num_vsis
< I40E_MIN_VSI_ALLOC
)
9155 pf
->num_alloc_vsi
= I40E_MIN_VSI_ALLOC
;
9157 pf
->num_alloc_vsi
= pf
->hw
.func_caps
.num_vsis
;
9159 /* Set up the *vsi struct and our local tracking of the MAIN PF vsi. */
9160 len
= sizeof(struct i40e_vsi
*) * pf
->num_alloc_vsi
;
9161 pf
->vsi
= kzalloc(len
, GFP_KERNEL
);
9164 goto err_switch_setup
;
9167 err
= i40e_setup_pf_switch(pf
, false);
9169 dev_info(&pdev
->dev
, "setup_pf_switch failed: %d\n", err
);
9172 /* if FDIR VSI was set up, start it now */
9173 for (i
= 0; i
< pf
->num_alloc_vsi
; i
++) {
9174 if (pf
->vsi
[i
] && pf
->vsi
[i
]->type
== I40E_VSI_FDIR
) {
9175 i40e_vsi_open(pf
->vsi
[i
]);
9180 /* driver is only interested in link up/down and module qualification
9181 * reports from firmware
9183 err
= i40e_aq_set_phy_int_mask(&pf
->hw
,
9184 I40E_AQ_EVENT_LINK_UPDOWN
|
9185 I40E_AQ_EVENT_MODULE_QUAL_FAIL
, NULL
);
9187 dev_info(&pf
->pdev
->dev
, "set phy mask fail, aq_err %d\n", err
);
9190 err
= i40e_aq_set_link_restart_an(&pf
->hw
, true, NULL
);
9192 dev_info(&pf
->pdev
->dev
, "link restart failed, aq_err=%d\n",
9193 pf
->hw
.aq
.asq_last_status
);
9196 /* The main driver is (mostly) up and happy. We need to set this state
9197 * before setting up the misc vector or we get a race and the vector
9198 * ends up disabled forever.
9200 clear_bit(__I40E_DOWN
, &pf
->state
);
9202 /* In case of MSIX we are going to setup the misc vector right here
9203 * to handle admin queue events etc. In case of legacy and MSI
9204 * the misc functionality and queue processing is combined in
9205 * the same vector and that gets setup at open.
9207 if (pf
->flags
& I40E_FLAG_MSIX_ENABLED
) {
9208 err
= i40e_setup_misc_vector(pf
);
9210 dev_info(&pdev
->dev
,
9211 "setup of misc vector failed: %d\n", err
);
9216 #ifdef CONFIG_PCI_IOV
9217 /* prep for VF support */
9218 if ((pf
->flags
& I40E_FLAG_SRIOV_ENABLED
) &&
9219 (pf
->flags
& I40E_FLAG_MSIX_ENABLED
) &&
9220 !test_bit(__I40E_BAD_EEPROM
, &pf
->state
)) {
9223 /* disable link interrupts for VFs */
9224 val
= rd32(hw
, I40E_PFGEN_PORTMDIO_NUM
);
9225 val
&= ~I40E_PFGEN_PORTMDIO_NUM_VFLINK_STAT_ENA_MASK
;
9226 wr32(hw
, I40E_PFGEN_PORTMDIO_NUM
, val
);
9229 if (pci_num_vf(pdev
)) {
9230 dev_info(&pdev
->dev
,
9231 "Active VFs found, allocating resources.\n");
9232 err
= i40e_alloc_vfs(pf
, pci_num_vf(pdev
));
9234 dev_info(&pdev
->dev
,
9235 "Error %d allocating resources for existing VFs\n",
9239 #endif /* CONFIG_PCI_IOV */
9243 i40e_dbg_pf_init(pf
);
9245 /* tell the firmware that we're starting */
9246 i40e_send_version(pf
);
9248 /* since everything's happy, start the service_task timer */
9249 mod_timer(&pf
->service_timer
,
9250 round_jiffies(jiffies
+ pf
->service_timer_period
));
9253 /* create FCoE interface */
9254 i40e_fcoe_vsi_setup(pf
);
9257 /* Get the negotiated link width and speed from PCI config space */
9258 pcie_capability_read_word(pf
->pdev
, PCI_EXP_LNKSTA
, &link_status
);
9260 i40e_set_pci_config_data(hw
, link_status
);
9262 dev_info(&pdev
->dev
, "PCI-Express: %s %s\n",
9263 (hw
->bus
.speed
== i40e_bus_speed_8000
? "Speed 8.0GT/s" :
9264 hw
->bus
.speed
== i40e_bus_speed_5000
? "Speed 5.0GT/s" :
9265 hw
->bus
.speed
== i40e_bus_speed_2500
? "Speed 2.5GT/s" :
9267 (hw
->bus
.width
== i40e_bus_width_pcie_x8
? "Width x8" :
9268 hw
->bus
.width
== i40e_bus_width_pcie_x4
? "Width x4" :
9269 hw
->bus
.width
== i40e_bus_width_pcie_x2
? "Width x2" :
9270 hw
->bus
.width
== i40e_bus_width_pcie_x1
? "Width x1" :
9273 if (hw
->bus
.width
< i40e_bus_width_pcie_x8
||
9274 hw
->bus
.speed
< i40e_bus_speed_8000
) {
9275 dev_warn(&pdev
->dev
, "PCI-Express bandwidth available for this device may be insufficient for optimal performance.\n");
9276 dev_warn(&pdev
->dev
, "Please move the device to a different PCI-e link with more lanes and/or higher transfer rate.\n");
9279 /* print a string summarizing features */
9280 i40e_print_features(pf
);
9284 /* Unwind what we've done if something failed in the setup */
9286 set_bit(__I40E_DOWN
, &pf
->state
);
9287 i40e_clear_interrupt_scheme(pf
);
9290 i40e_reset_interrupt_capability(pf
);
9291 del_timer_sync(&pf
->service_timer
);
9293 err_configure_lan_hmc
:
9294 (void)i40e_shutdown_lan_hmc(hw
);
9297 kfree(pf
->irq_pile
);
9300 (void)i40e_shutdown_adminq(hw
);
9302 iounmap(hw
->hw_addr
);
9306 pci_disable_pcie_error_reporting(pdev
);
9307 pci_release_selected_regions(pdev
,
9308 pci_select_bars(pdev
, IORESOURCE_MEM
));
9311 pci_disable_device(pdev
);
9316 * i40e_remove - Device removal routine
9317 * @pdev: PCI device information struct
9319 * i40e_remove is called by the PCI subsystem to alert the driver
9320 * that is should release a PCI device. This could be caused by a
9321 * Hot-Plug event, or because the driver is going to be removed from
9324 static void i40e_remove(struct pci_dev
*pdev
)
9326 struct i40e_pf
*pf
= pci_get_drvdata(pdev
);
9327 i40e_status ret_code
;
9330 i40e_dbg_pf_exit(pf
);
9334 /* no more scheduling of any task */
9335 set_bit(__I40E_DOWN
, &pf
->state
);
9336 del_timer_sync(&pf
->service_timer
);
9337 cancel_work_sync(&pf
->service_task
);
9339 if (pf
->flags
& I40E_FLAG_SRIOV_ENABLED
) {
9341 pf
->flags
&= ~I40E_FLAG_SRIOV_ENABLED
;
9344 i40e_fdir_teardown(pf
);
9346 /* If there is a switch structure or any orphans, remove them.
9347 * This will leave only the PF's VSI remaining.
9349 for (i
= 0; i
< I40E_MAX_VEB
; i
++) {
9353 if (pf
->veb
[i
]->uplink_seid
== pf
->mac_seid
||
9354 pf
->veb
[i
]->uplink_seid
== 0)
9355 i40e_switch_branch_release(pf
->veb
[i
]);
9358 /* Now we can shutdown the PF's VSI, just before we kill
9361 if (pf
->vsi
[pf
->lan_vsi
])
9362 i40e_vsi_release(pf
->vsi
[pf
->lan_vsi
]);
9364 i40e_stop_misc_vector(pf
);
9365 if (pf
->flags
& I40E_FLAG_MSIX_ENABLED
) {
9366 synchronize_irq(pf
->msix_entries
[0].vector
);
9367 free_irq(pf
->msix_entries
[0].vector
, pf
);
9370 /* shutdown and destroy the HMC */
9371 if (pf
->hw
.hmc
.hmc_obj
) {
9372 ret_code
= i40e_shutdown_lan_hmc(&pf
->hw
);
9374 dev_warn(&pdev
->dev
,
9375 "Failed to destroy the HMC resources: %d\n",
9379 /* shutdown the adminq */
9380 ret_code
= i40e_shutdown_adminq(&pf
->hw
);
9382 dev_warn(&pdev
->dev
,
9383 "Failed to destroy the Admin Queue resources: %d\n",
9386 /* Clear all dynamic memory lists of rings, q_vectors, and VSIs */
9387 i40e_clear_interrupt_scheme(pf
);
9388 for (i
= 0; i
< pf
->num_alloc_vsi
; i
++) {
9390 i40e_vsi_clear_rings(pf
->vsi
[i
]);
9391 i40e_vsi_clear(pf
->vsi
[i
]);
9396 for (i
= 0; i
< I40E_MAX_VEB
; i
++) {
9402 kfree(pf
->irq_pile
);
9405 iounmap(pf
->hw
.hw_addr
);
9407 pci_release_selected_regions(pdev
,
9408 pci_select_bars(pdev
, IORESOURCE_MEM
));
9410 pci_disable_pcie_error_reporting(pdev
);
9411 pci_disable_device(pdev
);
9415 * i40e_pci_error_detected - warning that something funky happened in PCI land
9416 * @pdev: PCI device information struct
9418 * Called to warn that something happened and the error handling steps
9419 * are in progress. Allows the driver to quiesce things, be ready for
9422 static pci_ers_result_t
i40e_pci_error_detected(struct pci_dev
*pdev
,
9423 enum pci_channel_state error
)
9425 struct i40e_pf
*pf
= pci_get_drvdata(pdev
);
9427 dev_info(&pdev
->dev
, "%s: error %d\n", __func__
, error
);
9429 /* shutdown all operations */
9430 if (!test_bit(__I40E_SUSPENDED
, &pf
->state
)) {
9432 i40e_prep_for_reset(pf
);
9436 /* Request a slot reset */
9437 return PCI_ERS_RESULT_NEED_RESET
;
9441 * i40e_pci_error_slot_reset - a PCI slot reset just happened
9442 * @pdev: PCI device information struct
9444 * Called to find if the driver can work with the device now that
9445 * the pci slot has been reset. If a basic connection seems good
9446 * (registers are readable and have sane content) then return a
9447 * happy little PCI_ERS_RESULT_xxx.
9449 static pci_ers_result_t
i40e_pci_error_slot_reset(struct pci_dev
*pdev
)
9451 struct i40e_pf
*pf
= pci_get_drvdata(pdev
);
9452 pci_ers_result_t result
;
9456 dev_info(&pdev
->dev
, "%s\n", __func__
);
9457 if (pci_enable_device_mem(pdev
)) {
9458 dev_info(&pdev
->dev
,
9459 "Cannot re-enable PCI device after reset.\n");
9460 result
= PCI_ERS_RESULT_DISCONNECT
;
9462 pci_set_master(pdev
);
9463 pci_restore_state(pdev
);
9464 pci_save_state(pdev
);
9465 pci_wake_from_d3(pdev
, false);
9467 reg
= rd32(&pf
->hw
, I40E_GLGEN_RTRIG
);
9469 result
= PCI_ERS_RESULT_RECOVERED
;
9471 result
= PCI_ERS_RESULT_DISCONNECT
;
9474 err
= pci_cleanup_aer_uncorrect_error_status(pdev
);
9476 dev_info(&pdev
->dev
,
9477 "pci_cleanup_aer_uncorrect_error_status failed 0x%0x\n",
9479 /* non-fatal, continue */
9486 * i40e_pci_error_resume - restart operations after PCI error recovery
9487 * @pdev: PCI device information struct
9489 * Called to allow the driver to bring things back up after PCI error
9490 * and/or reset recovery has finished.
9492 static void i40e_pci_error_resume(struct pci_dev
*pdev
)
9494 struct i40e_pf
*pf
= pci_get_drvdata(pdev
);
9496 dev_info(&pdev
->dev
, "%s\n", __func__
);
9497 if (test_bit(__I40E_SUSPENDED
, &pf
->state
))
9501 i40e_handle_reset_warning(pf
);
9506 * i40e_shutdown - PCI callback for shutting down
9507 * @pdev: PCI device information struct
9509 static void i40e_shutdown(struct pci_dev
*pdev
)
9511 struct i40e_pf
*pf
= pci_get_drvdata(pdev
);
9512 struct i40e_hw
*hw
= &pf
->hw
;
9514 set_bit(__I40E_SUSPENDED
, &pf
->state
);
9515 set_bit(__I40E_DOWN
, &pf
->state
);
9517 i40e_prep_for_reset(pf
);
9520 wr32(hw
, I40E_PFPM_APM
, (pf
->wol_en
? I40E_PFPM_APM_APME_MASK
: 0));
9521 wr32(hw
, I40E_PFPM_WUFC
, (pf
->wol_en
? I40E_PFPM_WUFC_MAG_MASK
: 0));
9523 if (system_state
== SYSTEM_POWER_OFF
) {
9524 pci_wake_from_d3(pdev
, pf
->wol_en
);
9525 pci_set_power_state(pdev
, PCI_D3hot
);
9531 * i40e_suspend - PCI callback for moving to D3
9532 * @pdev: PCI device information struct
9534 static int i40e_suspend(struct pci_dev
*pdev
, pm_message_t state
)
9536 struct i40e_pf
*pf
= pci_get_drvdata(pdev
);
9537 struct i40e_hw
*hw
= &pf
->hw
;
9539 set_bit(__I40E_SUSPENDED
, &pf
->state
);
9540 set_bit(__I40E_DOWN
, &pf
->state
);
9542 i40e_prep_for_reset(pf
);
9545 wr32(hw
, I40E_PFPM_APM
, (pf
->wol_en
? I40E_PFPM_APM_APME_MASK
: 0));
9546 wr32(hw
, I40E_PFPM_WUFC
, (pf
->wol_en
? I40E_PFPM_WUFC_MAG_MASK
: 0));
9548 pci_wake_from_d3(pdev
, pf
->wol_en
);
9549 pci_set_power_state(pdev
, PCI_D3hot
);
9555 * i40e_resume - PCI callback for waking up from D3
9556 * @pdev: PCI device information struct
9558 static int i40e_resume(struct pci_dev
*pdev
)
9560 struct i40e_pf
*pf
= pci_get_drvdata(pdev
);
9563 pci_set_power_state(pdev
, PCI_D0
);
9564 pci_restore_state(pdev
);
9565 /* pci_restore_state() clears dev->state_saves, so
9566 * call pci_save_state() again to restore it.
9568 pci_save_state(pdev
);
9570 err
= pci_enable_device_mem(pdev
);
9573 "%s: Cannot enable PCI device from suspend\n",
9577 pci_set_master(pdev
);
9579 /* no wakeup events while running */
9580 pci_wake_from_d3(pdev
, false);
9582 /* handling the reset will rebuild the device state */
9583 if (test_and_clear_bit(__I40E_SUSPENDED
, &pf
->state
)) {
9584 clear_bit(__I40E_DOWN
, &pf
->state
);
9586 i40e_reset_and_rebuild(pf
, false);
9594 static const struct pci_error_handlers i40e_err_handler
= {
9595 .error_detected
= i40e_pci_error_detected
,
9596 .slot_reset
= i40e_pci_error_slot_reset
,
9597 .resume
= i40e_pci_error_resume
,
9600 static struct pci_driver i40e_driver
= {
9601 .name
= i40e_driver_name
,
9602 .id_table
= i40e_pci_tbl
,
9603 .probe
= i40e_probe
,
9604 .remove
= i40e_remove
,
9606 .suspend
= i40e_suspend
,
9607 .resume
= i40e_resume
,
9609 .shutdown
= i40e_shutdown
,
9610 .err_handler
= &i40e_err_handler
,
9611 .sriov_configure
= i40e_pci_sriov_configure
,
9615 * i40e_init_module - Driver registration routine
9617 * i40e_init_module is the first routine called when the driver is
9618 * loaded. All it does is register with the PCI subsystem.
9620 static int __init
i40e_init_module(void)
9622 pr_info("%s: %s - version %s\n", i40e_driver_name
,
9623 i40e_driver_string
, i40e_driver_version_str
);
9624 pr_info("%s: %s\n", i40e_driver_name
, i40e_copyright
);
9626 return pci_register_driver(&i40e_driver
);
9628 module_init(i40e_init_module
);
9631 * i40e_exit_module - Driver exit cleanup routine
9633 * i40e_exit_module is called just before the driver is removed
9636 static void __exit
i40e_exit_module(void)
9638 pci_unregister_driver(&i40e_driver
);
9641 module_exit(i40e_exit_module
);