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 2
42 #define DRV_VERSION_BUILD 6
43 #define DRV_VERSION __stringify(DRV_VERSION_MAJOR) "." \
44 __stringify(DRV_VERSION_MINOR) "." \
45 __stringify(DRV_VERSION_BUILD) DRV_KERN
46 const char i40e_driver_version_str
[] = DRV_VERSION
;
47 static const char i40e_copyright
[] = "Copyright (c) 2013 - 2014 Intel Corporation.";
49 /* a bit of forward declarations */
50 static void i40e_vsi_reinit_locked(struct i40e_vsi
*vsi
);
51 static void i40e_handle_reset_warning(struct i40e_pf
*pf
);
52 static int i40e_add_vsi(struct i40e_vsi
*vsi
);
53 static int i40e_add_veb(struct i40e_veb
*veb
, struct i40e_vsi
*vsi
);
54 static int i40e_setup_pf_switch(struct i40e_pf
*pf
, bool reinit
);
55 static int i40e_setup_misc_vector(struct i40e_pf
*pf
);
56 static void i40e_determine_queue_usage(struct i40e_pf
*pf
);
57 static int i40e_setup_pf_filter_control(struct i40e_pf
*pf
);
58 static void i40e_fdir_sb_setup(struct i40e_pf
*pf
);
59 static int i40e_veb_get_bw_info(struct i40e_veb
*veb
);
61 /* i40e_pci_tbl - PCI Device ID Table
63 * Last entry must be all 0s
65 * { Vendor ID, Device ID, SubVendor ID, SubDevice ID,
66 * Class, Class Mask, private data (not used) }
68 static const struct pci_device_id i40e_pci_tbl
[] = {
69 {PCI_VDEVICE(INTEL
, I40E_DEV_ID_SFP_XL710
), 0},
70 {PCI_VDEVICE(INTEL
, I40E_DEV_ID_QEMU
), 0},
71 {PCI_VDEVICE(INTEL
, I40E_DEV_ID_KX_A
), 0},
72 {PCI_VDEVICE(INTEL
, I40E_DEV_ID_KX_B
), 0},
73 {PCI_VDEVICE(INTEL
, I40E_DEV_ID_KX_C
), 0},
74 {PCI_VDEVICE(INTEL
, I40E_DEV_ID_QSFP_A
), 0},
75 {PCI_VDEVICE(INTEL
, I40E_DEV_ID_QSFP_B
), 0},
76 {PCI_VDEVICE(INTEL
, I40E_DEV_ID_QSFP_C
), 0},
77 {PCI_VDEVICE(INTEL
, I40E_DEV_ID_10G_BASE_T
), 0},
78 /* required last entry */
81 MODULE_DEVICE_TABLE(pci
, i40e_pci_tbl
);
83 #define I40E_MAX_VF_COUNT 128
84 static int debug
= -1;
85 module_param(debug
, int, 0);
86 MODULE_PARM_DESC(debug
, "Debug level (0=none,...,16=all)");
88 MODULE_AUTHOR("Intel Corporation, <e1000-devel@lists.sourceforge.net>");
89 MODULE_DESCRIPTION("Intel(R) Ethernet Connection XL710 Network Driver");
90 MODULE_LICENSE("GPL");
91 MODULE_VERSION(DRV_VERSION
);
94 * i40e_allocate_dma_mem_d - OS specific memory alloc for shared code
95 * @hw: pointer to the HW structure
96 * @mem: ptr to mem struct to fill out
97 * @size: size of memory requested
98 * @alignment: what to align the allocation to
100 int i40e_allocate_dma_mem_d(struct i40e_hw
*hw
, struct i40e_dma_mem
*mem
,
101 u64 size
, u32 alignment
)
103 struct i40e_pf
*pf
= (struct i40e_pf
*)hw
->back
;
105 mem
->size
= ALIGN(size
, alignment
);
106 mem
->va
= dma_zalloc_coherent(&pf
->pdev
->dev
, mem
->size
,
107 &mem
->pa
, GFP_KERNEL
);
115 * i40e_free_dma_mem_d - OS specific memory free for shared code
116 * @hw: pointer to the HW structure
117 * @mem: ptr to mem struct to free
119 int i40e_free_dma_mem_d(struct i40e_hw
*hw
, struct i40e_dma_mem
*mem
)
121 struct i40e_pf
*pf
= (struct i40e_pf
*)hw
->back
;
123 dma_free_coherent(&pf
->pdev
->dev
, mem
->size
, mem
->va
, mem
->pa
);
132 * i40e_allocate_virt_mem_d - OS specific memory alloc for shared code
133 * @hw: pointer to the HW structure
134 * @mem: ptr to mem struct to fill out
135 * @size: size of memory requested
137 int i40e_allocate_virt_mem_d(struct i40e_hw
*hw
, struct i40e_virt_mem
*mem
,
141 mem
->va
= kzalloc(size
, GFP_KERNEL
);
150 * i40e_free_virt_mem_d - OS specific memory free for shared code
151 * @hw: pointer to the HW structure
152 * @mem: ptr to mem struct to free
154 int i40e_free_virt_mem_d(struct i40e_hw
*hw
, struct i40e_virt_mem
*mem
)
156 /* it's ok to kfree a NULL pointer */
165 * i40e_get_lump - find a lump of free generic resource
166 * @pf: board private structure
167 * @pile: the pile of resource to search
168 * @needed: the number of items needed
169 * @id: an owner id to stick on the items assigned
171 * Returns the base item index of the lump, or negative for error
173 * The search_hint trick and lack of advanced fit-finding only work
174 * because we're highly likely to have all the same size lump requests.
175 * Linear search time and any fragmentation should be minimal.
177 static int i40e_get_lump(struct i40e_pf
*pf
, struct i40e_lump_tracking
*pile
,
183 if (!pile
|| needed
== 0 || id
>= I40E_PILE_VALID_BIT
) {
184 dev_info(&pf
->pdev
->dev
,
185 "param err: pile=%p needed=%d id=0x%04x\n",
190 /* start the linear search with an imperfect hint */
191 i
= pile
->search_hint
;
192 while (i
< pile
->num_entries
) {
193 /* skip already allocated entries */
194 if (pile
->list
[i
] & I40E_PILE_VALID_BIT
) {
199 /* do we have enough in this lump? */
200 for (j
= 0; (j
< needed
) && ((i
+j
) < pile
->num_entries
); j
++) {
201 if (pile
->list
[i
+j
] & I40E_PILE_VALID_BIT
)
206 /* there was enough, so assign it to the requestor */
207 for (j
= 0; j
< needed
; j
++)
208 pile
->list
[i
+j
] = id
| I40E_PILE_VALID_BIT
;
210 pile
->search_hint
= i
+ j
;
213 /* not enough, so skip over it and continue looking */
222 * i40e_put_lump - return a lump of generic resource
223 * @pile: the pile of resource to search
224 * @index: the base item index
225 * @id: the owner id of the items assigned
227 * Returns the count of items in the lump
229 static int i40e_put_lump(struct i40e_lump_tracking
*pile
, u16 index
, u16 id
)
231 int valid_id
= (id
| I40E_PILE_VALID_BIT
);
235 if (!pile
|| index
>= pile
->num_entries
)
239 i
< pile
->num_entries
&& pile
->list
[i
] == valid_id
;
245 if (count
&& index
< pile
->search_hint
)
246 pile
->search_hint
= index
;
252 * i40e_service_event_schedule - Schedule the service task to wake up
253 * @pf: board private structure
255 * If not already scheduled, this puts the task into the work queue
257 static void i40e_service_event_schedule(struct i40e_pf
*pf
)
259 if (!test_bit(__I40E_DOWN
, &pf
->state
) &&
260 !test_bit(__I40E_RESET_RECOVERY_PENDING
, &pf
->state
) &&
261 !test_and_set_bit(__I40E_SERVICE_SCHED
, &pf
->state
))
262 schedule_work(&pf
->service_task
);
266 * i40e_tx_timeout - Respond to a Tx Hang
267 * @netdev: network interface device structure
269 * If any port has noticed a Tx timeout, it is likely that the whole
270 * device is munged, not just the one netdev port, so go for the full
274 void i40e_tx_timeout(struct net_device
*netdev
)
276 static void i40e_tx_timeout(struct net_device
*netdev
)
279 struct i40e_netdev_priv
*np
= netdev_priv(netdev
);
280 struct i40e_vsi
*vsi
= np
->vsi
;
281 struct i40e_pf
*pf
= vsi
->back
;
283 pf
->tx_timeout_count
++;
285 if (time_after(jiffies
, (pf
->tx_timeout_last_recovery
+ HZ
*20)))
286 pf
->tx_timeout_recovery_level
= 1;
287 pf
->tx_timeout_last_recovery
= jiffies
;
288 netdev_info(netdev
, "tx_timeout recovery level %d\n",
289 pf
->tx_timeout_recovery_level
);
291 switch (pf
->tx_timeout_recovery_level
) {
293 /* disable and re-enable queues for the VSI */
294 if (in_interrupt()) {
295 set_bit(__I40E_REINIT_REQUESTED
, &pf
->state
);
296 set_bit(__I40E_REINIT_REQUESTED
, &vsi
->state
);
298 i40e_vsi_reinit_locked(vsi
);
302 set_bit(__I40E_PF_RESET_REQUESTED
, &pf
->state
);
305 set_bit(__I40E_CORE_RESET_REQUESTED
, &pf
->state
);
308 set_bit(__I40E_GLOBAL_RESET_REQUESTED
, &pf
->state
);
311 netdev_err(netdev
, "tx_timeout recovery unsuccessful\n");
312 set_bit(__I40E_DOWN_REQUESTED
, &pf
->state
);
313 set_bit(__I40E_DOWN_REQUESTED
, &vsi
->state
);
316 i40e_service_event_schedule(pf
);
317 pf
->tx_timeout_recovery_level
++;
321 * i40e_release_rx_desc - Store the new tail and head values
322 * @rx_ring: ring to bump
323 * @val: new head index
325 static inline void i40e_release_rx_desc(struct i40e_ring
*rx_ring
, u32 val
)
327 rx_ring
->next_to_use
= val
;
329 /* Force memory writes to complete before letting h/w
330 * know there are new descriptors to fetch. (Only
331 * applicable for weak-ordered memory model archs,
335 writel(val
, rx_ring
->tail
);
339 * i40e_get_vsi_stats_struct - Get System Network Statistics
340 * @vsi: the VSI we care about
342 * Returns the address of the device statistics structure.
343 * The statistics are actually updated from the service task.
345 struct rtnl_link_stats64
*i40e_get_vsi_stats_struct(struct i40e_vsi
*vsi
)
347 return &vsi
->net_stats
;
351 * i40e_get_netdev_stats_struct - Get statistics for netdev interface
352 * @netdev: network interface device structure
354 * Returns the address of the device statistics structure.
355 * The statistics are actually updated from the service task.
358 struct rtnl_link_stats64
*i40e_get_netdev_stats_struct(
359 struct net_device
*netdev
,
360 struct rtnl_link_stats64
*stats
)
362 static struct rtnl_link_stats64
*i40e_get_netdev_stats_struct(
363 struct net_device
*netdev
,
364 struct rtnl_link_stats64
*stats
)
367 struct i40e_netdev_priv
*np
= netdev_priv(netdev
);
368 struct i40e_ring
*tx_ring
, *rx_ring
;
369 struct i40e_vsi
*vsi
= np
->vsi
;
370 struct rtnl_link_stats64
*vsi_stats
= i40e_get_vsi_stats_struct(vsi
);
373 if (test_bit(__I40E_DOWN
, &vsi
->state
))
380 for (i
= 0; i
< vsi
->num_queue_pairs
; i
++) {
384 tx_ring
= ACCESS_ONCE(vsi
->tx_rings
[i
]);
389 start
= u64_stats_fetch_begin_irq(&tx_ring
->syncp
);
390 packets
= tx_ring
->stats
.packets
;
391 bytes
= tx_ring
->stats
.bytes
;
392 } while (u64_stats_fetch_retry_irq(&tx_ring
->syncp
, start
));
394 stats
->tx_packets
+= packets
;
395 stats
->tx_bytes
+= bytes
;
396 rx_ring
= &tx_ring
[1];
399 start
= u64_stats_fetch_begin_irq(&rx_ring
->syncp
);
400 packets
= rx_ring
->stats
.packets
;
401 bytes
= rx_ring
->stats
.bytes
;
402 } while (u64_stats_fetch_retry_irq(&rx_ring
->syncp
, start
));
404 stats
->rx_packets
+= packets
;
405 stats
->rx_bytes
+= bytes
;
409 /* following stats updated by i40e_watchdog_subtask() */
410 stats
->multicast
= vsi_stats
->multicast
;
411 stats
->tx_errors
= vsi_stats
->tx_errors
;
412 stats
->tx_dropped
= vsi_stats
->tx_dropped
;
413 stats
->rx_errors
= vsi_stats
->rx_errors
;
414 stats
->rx_crc_errors
= vsi_stats
->rx_crc_errors
;
415 stats
->rx_length_errors
= vsi_stats
->rx_length_errors
;
421 * i40e_vsi_reset_stats - Resets all stats of the given vsi
422 * @vsi: the VSI to have its stats reset
424 void i40e_vsi_reset_stats(struct i40e_vsi
*vsi
)
426 struct rtnl_link_stats64
*ns
;
432 ns
= i40e_get_vsi_stats_struct(vsi
);
433 memset(ns
, 0, sizeof(*ns
));
434 memset(&vsi
->net_stats_offsets
, 0, sizeof(vsi
->net_stats_offsets
));
435 memset(&vsi
->eth_stats
, 0, sizeof(vsi
->eth_stats
));
436 memset(&vsi
->eth_stats_offsets
, 0, sizeof(vsi
->eth_stats_offsets
));
437 if (vsi
->rx_rings
&& vsi
->rx_rings
[0]) {
438 for (i
= 0; i
< vsi
->num_queue_pairs
; i
++) {
439 memset(&vsi
->rx_rings
[i
]->stats
, 0 ,
440 sizeof(vsi
->rx_rings
[i
]->stats
));
441 memset(&vsi
->rx_rings
[i
]->rx_stats
, 0 ,
442 sizeof(vsi
->rx_rings
[i
]->rx_stats
));
443 memset(&vsi
->tx_rings
[i
]->stats
, 0 ,
444 sizeof(vsi
->tx_rings
[i
]->stats
));
445 memset(&vsi
->tx_rings
[i
]->tx_stats
, 0,
446 sizeof(vsi
->tx_rings
[i
]->tx_stats
));
449 vsi
->stat_offsets_loaded
= false;
453 * i40e_pf_reset_stats - Reset all of the stats for the given pf
454 * @pf: the PF to be reset
456 void i40e_pf_reset_stats(struct i40e_pf
*pf
)
460 memset(&pf
->stats
, 0, sizeof(pf
->stats
));
461 memset(&pf
->stats_offsets
, 0, sizeof(pf
->stats_offsets
));
462 pf
->stat_offsets_loaded
= false;
464 for (i
= 0; i
< I40E_MAX_VEB
; i
++) {
466 memset(&pf
->veb
[i
]->stats
, 0,
467 sizeof(pf
->veb
[i
]->stats
));
468 memset(&pf
->veb
[i
]->stats_offsets
, 0,
469 sizeof(pf
->veb
[i
]->stats_offsets
));
470 pf
->veb
[i
]->stat_offsets_loaded
= false;
476 * i40e_stat_update48 - read and update a 48 bit stat from the chip
477 * @hw: ptr to the hardware info
478 * @hireg: the high 32 bit reg to read
479 * @loreg: the low 32 bit reg to read
480 * @offset_loaded: has the initial offset been loaded yet
481 * @offset: ptr to current offset value
482 * @stat: ptr to the stat
484 * Since the device stats are not reset at PFReset, they likely will not
485 * be zeroed when the driver starts. We'll save the first values read
486 * and use them as offsets to be subtracted from the raw values in order
487 * to report stats that count from zero. In the process, we also manage
488 * the potential roll-over.
490 static void i40e_stat_update48(struct i40e_hw
*hw
, u32 hireg
, u32 loreg
,
491 bool offset_loaded
, u64
*offset
, u64
*stat
)
495 if (hw
->device_id
== I40E_DEV_ID_QEMU
) {
496 new_data
= rd32(hw
, loreg
);
497 new_data
|= ((u64
)(rd32(hw
, hireg
) & 0xFFFF)) << 32;
499 new_data
= rd64(hw
, loreg
);
503 if (likely(new_data
>= *offset
))
504 *stat
= new_data
- *offset
;
506 *stat
= (new_data
+ ((u64
)1 << 48)) - *offset
;
507 *stat
&= 0xFFFFFFFFFFFFULL
;
511 * i40e_stat_update32 - read and update a 32 bit stat from the chip
512 * @hw: ptr to the hardware info
513 * @reg: the hw reg to read
514 * @offset_loaded: has the initial offset been loaded yet
515 * @offset: ptr to current offset value
516 * @stat: ptr to the stat
518 static void i40e_stat_update32(struct i40e_hw
*hw
, u32 reg
,
519 bool offset_loaded
, u64
*offset
, u64
*stat
)
523 new_data
= rd32(hw
, reg
);
526 if (likely(new_data
>= *offset
))
527 *stat
= (u32
)(new_data
- *offset
);
529 *stat
= (u32
)((new_data
+ ((u64
)1 << 32)) - *offset
);
533 * i40e_update_eth_stats - Update VSI-specific ethernet statistics counters.
534 * @vsi: the VSI to be updated
536 void i40e_update_eth_stats(struct i40e_vsi
*vsi
)
538 int stat_idx
= le16_to_cpu(vsi
->info
.stat_counter_idx
);
539 struct i40e_pf
*pf
= vsi
->back
;
540 struct i40e_hw
*hw
= &pf
->hw
;
541 struct i40e_eth_stats
*oes
;
542 struct i40e_eth_stats
*es
; /* device's eth stats */
544 es
= &vsi
->eth_stats
;
545 oes
= &vsi
->eth_stats_offsets
;
547 /* Gather up the stats that the hw collects */
548 i40e_stat_update32(hw
, I40E_GLV_TEPC(stat_idx
),
549 vsi
->stat_offsets_loaded
,
550 &oes
->tx_errors
, &es
->tx_errors
);
551 i40e_stat_update32(hw
, I40E_GLV_RDPC(stat_idx
),
552 vsi
->stat_offsets_loaded
,
553 &oes
->rx_discards
, &es
->rx_discards
);
554 i40e_stat_update32(hw
, I40E_GLV_RUPP(stat_idx
),
555 vsi
->stat_offsets_loaded
,
556 &oes
->rx_unknown_protocol
, &es
->rx_unknown_protocol
);
557 i40e_stat_update32(hw
, I40E_GLV_TEPC(stat_idx
),
558 vsi
->stat_offsets_loaded
,
559 &oes
->tx_errors
, &es
->tx_errors
);
561 i40e_stat_update48(hw
, I40E_GLV_GORCH(stat_idx
),
562 I40E_GLV_GORCL(stat_idx
),
563 vsi
->stat_offsets_loaded
,
564 &oes
->rx_bytes
, &es
->rx_bytes
);
565 i40e_stat_update48(hw
, I40E_GLV_UPRCH(stat_idx
),
566 I40E_GLV_UPRCL(stat_idx
),
567 vsi
->stat_offsets_loaded
,
568 &oes
->rx_unicast
, &es
->rx_unicast
);
569 i40e_stat_update48(hw
, I40E_GLV_MPRCH(stat_idx
),
570 I40E_GLV_MPRCL(stat_idx
),
571 vsi
->stat_offsets_loaded
,
572 &oes
->rx_multicast
, &es
->rx_multicast
);
573 i40e_stat_update48(hw
, I40E_GLV_BPRCH(stat_idx
),
574 I40E_GLV_BPRCL(stat_idx
),
575 vsi
->stat_offsets_loaded
,
576 &oes
->rx_broadcast
, &es
->rx_broadcast
);
578 i40e_stat_update48(hw
, I40E_GLV_GOTCH(stat_idx
),
579 I40E_GLV_GOTCL(stat_idx
),
580 vsi
->stat_offsets_loaded
,
581 &oes
->tx_bytes
, &es
->tx_bytes
);
582 i40e_stat_update48(hw
, I40E_GLV_UPTCH(stat_idx
),
583 I40E_GLV_UPTCL(stat_idx
),
584 vsi
->stat_offsets_loaded
,
585 &oes
->tx_unicast
, &es
->tx_unicast
);
586 i40e_stat_update48(hw
, I40E_GLV_MPTCH(stat_idx
),
587 I40E_GLV_MPTCL(stat_idx
),
588 vsi
->stat_offsets_loaded
,
589 &oes
->tx_multicast
, &es
->tx_multicast
);
590 i40e_stat_update48(hw
, I40E_GLV_BPTCH(stat_idx
),
591 I40E_GLV_BPTCL(stat_idx
),
592 vsi
->stat_offsets_loaded
,
593 &oes
->tx_broadcast
, &es
->tx_broadcast
);
594 vsi
->stat_offsets_loaded
= true;
598 * i40e_update_veb_stats - Update Switch component statistics
599 * @veb: the VEB being updated
601 static void i40e_update_veb_stats(struct i40e_veb
*veb
)
603 struct i40e_pf
*pf
= veb
->pf
;
604 struct i40e_hw
*hw
= &pf
->hw
;
605 struct i40e_eth_stats
*oes
;
606 struct i40e_eth_stats
*es
; /* device's eth stats */
609 idx
= veb
->stats_idx
;
611 oes
= &veb
->stats_offsets
;
613 /* Gather up the stats that the hw collects */
614 i40e_stat_update32(hw
, I40E_GLSW_TDPC(idx
),
615 veb
->stat_offsets_loaded
,
616 &oes
->tx_discards
, &es
->tx_discards
);
617 if (hw
->revision_id
> 0)
618 i40e_stat_update32(hw
, I40E_GLSW_RUPP(idx
),
619 veb
->stat_offsets_loaded
,
620 &oes
->rx_unknown_protocol
,
621 &es
->rx_unknown_protocol
);
622 i40e_stat_update48(hw
, I40E_GLSW_GORCH(idx
), I40E_GLSW_GORCL(idx
),
623 veb
->stat_offsets_loaded
,
624 &oes
->rx_bytes
, &es
->rx_bytes
);
625 i40e_stat_update48(hw
, I40E_GLSW_UPRCH(idx
), I40E_GLSW_UPRCL(idx
),
626 veb
->stat_offsets_loaded
,
627 &oes
->rx_unicast
, &es
->rx_unicast
);
628 i40e_stat_update48(hw
, I40E_GLSW_MPRCH(idx
), I40E_GLSW_MPRCL(idx
),
629 veb
->stat_offsets_loaded
,
630 &oes
->rx_multicast
, &es
->rx_multicast
);
631 i40e_stat_update48(hw
, I40E_GLSW_BPRCH(idx
), I40E_GLSW_BPRCL(idx
),
632 veb
->stat_offsets_loaded
,
633 &oes
->rx_broadcast
, &es
->rx_broadcast
);
635 i40e_stat_update48(hw
, I40E_GLSW_GOTCH(idx
), I40E_GLSW_GOTCL(idx
),
636 veb
->stat_offsets_loaded
,
637 &oes
->tx_bytes
, &es
->tx_bytes
);
638 i40e_stat_update48(hw
, I40E_GLSW_UPTCH(idx
), I40E_GLSW_UPTCL(idx
),
639 veb
->stat_offsets_loaded
,
640 &oes
->tx_unicast
, &es
->tx_unicast
);
641 i40e_stat_update48(hw
, I40E_GLSW_MPTCH(idx
), I40E_GLSW_MPTCL(idx
),
642 veb
->stat_offsets_loaded
,
643 &oes
->tx_multicast
, &es
->tx_multicast
);
644 i40e_stat_update48(hw
, I40E_GLSW_BPTCH(idx
), I40E_GLSW_BPTCL(idx
),
645 veb
->stat_offsets_loaded
,
646 &oes
->tx_broadcast
, &es
->tx_broadcast
);
647 veb
->stat_offsets_loaded
= true;
652 * i40e_update_fcoe_stats - Update FCoE-specific ethernet statistics counters.
653 * @vsi: the VSI that is capable of doing FCoE
655 static void i40e_update_fcoe_stats(struct i40e_vsi
*vsi
)
657 struct i40e_pf
*pf
= vsi
->back
;
658 struct i40e_hw
*hw
= &pf
->hw
;
659 struct i40e_fcoe_stats
*ofs
;
660 struct i40e_fcoe_stats
*fs
; /* device's eth stats */
663 if (vsi
->type
!= I40E_VSI_FCOE
)
666 idx
= (pf
->pf_seid
- I40E_BASE_PF_SEID
) + I40E_FCOE_PF_STAT_OFFSET
;
667 fs
= &vsi
->fcoe_stats
;
668 ofs
= &vsi
->fcoe_stats_offsets
;
670 i40e_stat_update32(hw
, I40E_GL_FCOEPRC(idx
),
671 vsi
->fcoe_stat_offsets_loaded
,
672 &ofs
->rx_fcoe_packets
, &fs
->rx_fcoe_packets
);
673 i40e_stat_update48(hw
, I40E_GL_FCOEDWRCH(idx
), I40E_GL_FCOEDWRCL(idx
),
674 vsi
->fcoe_stat_offsets_loaded
,
675 &ofs
->rx_fcoe_dwords
, &fs
->rx_fcoe_dwords
);
676 i40e_stat_update32(hw
, I40E_GL_FCOERPDC(idx
),
677 vsi
->fcoe_stat_offsets_loaded
,
678 &ofs
->rx_fcoe_dropped
, &fs
->rx_fcoe_dropped
);
679 i40e_stat_update32(hw
, I40E_GL_FCOEPTC(idx
),
680 vsi
->fcoe_stat_offsets_loaded
,
681 &ofs
->tx_fcoe_packets
, &fs
->tx_fcoe_packets
);
682 i40e_stat_update48(hw
, I40E_GL_FCOEDWTCH(idx
), I40E_GL_FCOEDWTCL(idx
),
683 vsi
->fcoe_stat_offsets_loaded
,
684 &ofs
->tx_fcoe_dwords
, &fs
->tx_fcoe_dwords
);
685 i40e_stat_update32(hw
, I40E_GL_FCOECRC(idx
),
686 vsi
->fcoe_stat_offsets_loaded
,
687 &ofs
->fcoe_bad_fccrc
, &fs
->fcoe_bad_fccrc
);
688 i40e_stat_update32(hw
, I40E_GL_FCOELAST(idx
),
689 vsi
->fcoe_stat_offsets_loaded
,
690 &ofs
->fcoe_last_error
, &fs
->fcoe_last_error
);
691 i40e_stat_update32(hw
, I40E_GL_FCOEDDPC(idx
),
692 vsi
->fcoe_stat_offsets_loaded
,
693 &ofs
->fcoe_ddp_count
, &fs
->fcoe_ddp_count
);
695 vsi
->fcoe_stat_offsets_loaded
= true;
700 * i40e_update_link_xoff_rx - Update XOFF received in link flow control mode
701 * @pf: the corresponding PF
703 * Update the Rx XOFF counter (PAUSE frames) in link flow control mode
705 static void i40e_update_link_xoff_rx(struct i40e_pf
*pf
)
707 struct i40e_hw_port_stats
*osd
= &pf
->stats_offsets
;
708 struct i40e_hw_port_stats
*nsd
= &pf
->stats
;
709 struct i40e_hw
*hw
= &pf
->hw
;
713 if ((hw
->fc
.current_mode
!= I40E_FC_FULL
) &&
714 (hw
->fc
.current_mode
!= I40E_FC_RX_PAUSE
))
717 xoff
= nsd
->link_xoff_rx
;
718 i40e_stat_update32(hw
, I40E_GLPRT_LXOFFRXC(hw
->port
),
719 pf
->stat_offsets_loaded
,
720 &osd
->link_xoff_rx
, &nsd
->link_xoff_rx
);
722 /* No new LFC xoff rx */
723 if (!(nsd
->link_xoff_rx
- xoff
))
726 /* Clear the __I40E_HANG_CHECK_ARMED bit for all Tx rings */
727 for (v
= 0; v
< pf
->num_alloc_vsi
; v
++) {
728 struct i40e_vsi
*vsi
= pf
->vsi
[v
];
730 if (!vsi
|| !vsi
->tx_rings
[0])
733 for (i
= 0; i
< vsi
->num_queue_pairs
; i
++) {
734 struct i40e_ring
*ring
= vsi
->tx_rings
[i
];
735 clear_bit(__I40E_HANG_CHECK_ARMED
, &ring
->state
);
741 * i40e_update_prio_xoff_rx - Update XOFF received in PFC mode
742 * @pf: the corresponding PF
744 * Update the Rx XOFF counter (PAUSE frames) in PFC mode
746 static void i40e_update_prio_xoff_rx(struct i40e_pf
*pf
)
748 struct i40e_hw_port_stats
*osd
= &pf
->stats_offsets
;
749 struct i40e_hw_port_stats
*nsd
= &pf
->stats
;
750 bool xoff
[I40E_MAX_TRAFFIC_CLASS
] = {false};
751 struct i40e_dcbx_config
*dcb_cfg
;
752 struct i40e_hw
*hw
= &pf
->hw
;
756 dcb_cfg
= &hw
->local_dcbx_config
;
758 /* See if DCB enabled with PFC TC */
759 if (!(pf
->flags
& I40E_FLAG_DCB_ENABLED
) ||
760 !(dcb_cfg
->pfc
.pfcenable
)) {
761 i40e_update_link_xoff_rx(pf
);
765 for (i
= 0; i
< I40E_MAX_USER_PRIORITY
; i
++) {
766 u64 prio_xoff
= nsd
->priority_xoff_rx
[i
];
767 i40e_stat_update32(hw
, I40E_GLPRT_PXOFFRXC(hw
->port
, i
),
768 pf
->stat_offsets_loaded
,
769 &osd
->priority_xoff_rx
[i
],
770 &nsd
->priority_xoff_rx
[i
]);
772 /* No new PFC xoff rx */
773 if (!(nsd
->priority_xoff_rx
[i
] - prio_xoff
))
775 /* Get the TC for given priority */
776 tc
= dcb_cfg
->etscfg
.prioritytable
[i
];
780 /* Clear the __I40E_HANG_CHECK_ARMED bit for Tx rings */
781 for (v
= 0; v
< pf
->num_alloc_vsi
; v
++) {
782 struct i40e_vsi
*vsi
= pf
->vsi
[v
];
784 if (!vsi
|| !vsi
->tx_rings
[0])
787 for (i
= 0; i
< vsi
->num_queue_pairs
; i
++) {
788 struct i40e_ring
*ring
= vsi
->tx_rings
[i
];
792 clear_bit(__I40E_HANG_CHECK_ARMED
,
799 * i40e_update_vsi_stats - Update the vsi statistics counters.
800 * @vsi: the VSI to be updated
802 * There are a few instances where we store the same stat in a
803 * couple of different structs. This is partly because we have
804 * the netdev stats that need to be filled out, which is slightly
805 * different from the "eth_stats" defined by the chip and used in
806 * VF communications. We sort it out here.
808 static void i40e_update_vsi_stats(struct i40e_vsi
*vsi
)
810 struct i40e_pf
*pf
= vsi
->back
;
811 struct rtnl_link_stats64
*ons
;
812 struct rtnl_link_stats64
*ns
; /* netdev stats */
813 struct i40e_eth_stats
*oes
;
814 struct i40e_eth_stats
*es
; /* device's eth stats */
815 u32 tx_restart
, tx_busy
;
824 if (test_bit(__I40E_DOWN
, &vsi
->state
) ||
825 test_bit(__I40E_CONFIG_BUSY
, &pf
->state
))
828 ns
= i40e_get_vsi_stats_struct(vsi
);
829 ons
= &vsi
->net_stats_offsets
;
830 es
= &vsi
->eth_stats
;
831 oes
= &vsi
->eth_stats_offsets
;
833 /* Gather up the netdev and vsi stats that the driver collects
834 * on the fly during packet processing
838 tx_restart
= tx_busy
= 0;
842 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 /* In MFP case we can have a much lower count of MSIx
1516 * vectors available and so we need to lower the used
1519 qcount
= min_t(int, vsi
->alloc_queue_pairs
, pf
->num_lan_msix
);
1520 num_tc_qps
= qcount
/ numtc
;
1521 num_tc_qps
= min_t(int, num_tc_qps
, I40E_MAX_QUEUES_PER_TC
);
1523 /* Setup queue offset/count for all TCs for given VSI */
1524 for (i
= 0; i
< I40E_MAX_TRAFFIC_CLASS
; i
++) {
1525 /* See if the given TC is enabled for the given VSI */
1526 if (vsi
->tc_config
.enabled_tc
& (1 << i
)) { /* TC is enabled */
1529 switch (vsi
->type
) {
1531 qcount
= min_t(int, pf
->rss_size
, num_tc_qps
);
1535 qcount
= num_tc_qps
;
1539 case I40E_VSI_SRIOV
:
1540 case I40E_VSI_VMDQ2
:
1542 qcount
= num_tc_qps
;
1546 vsi
->tc_config
.tc_info
[i
].qoffset
= offset
;
1547 vsi
->tc_config
.tc_info
[i
].qcount
= qcount
;
1549 /* find the power-of-2 of the number of queue pairs */
1552 while (num_qps
&& ((1 << pow
) < qcount
)) {
1557 vsi
->tc_config
.tc_info
[i
].netdev_tc
= netdev_tc
++;
1559 (offset
<< I40E_AQ_VSI_TC_QUE_OFFSET_SHIFT
) |
1560 (pow
<< I40E_AQ_VSI_TC_QUE_NUMBER_SHIFT
);
1564 /* TC is not enabled so set the offset to
1565 * default queue and allocate one queue
1568 vsi
->tc_config
.tc_info
[i
].qoffset
= 0;
1569 vsi
->tc_config
.tc_info
[i
].qcount
= 1;
1570 vsi
->tc_config
.tc_info
[i
].netdev_tc
= 0;
1574 ctxt
->info
.tc_mapping
[i
] = cpu_to_le16(qmap
);
1577 /* Set actual Tx/Rx queue pairs */
1578 vsi
->num_queue_pairs
= offset
;
1580 /* Scheduler section valid can only be set for ADD VSI */
1582 sections
|= I40E_AQ_VSI_PROP_SCHED_VALID
;
1584 ctxt
->info
.up_enable_bits
= enabled_tc
;
1586 if (vsi
->type
== I40E_VSI_SRIOV
) {
1587 ctxt
->info
.mapping_flags
|=
1588 cpu_to_le16(I40E_AQ_VSI_QUE_MAP_NONCONTIG
);
1589 for (i
= 0; i
< vsi
->num_queue_pairs
; i
++)
1590 ctxt
->info
.queue_mapping
[i
] =
1591 cpu_to_le16(vsi
->base_queue
+ i
);
1593 ctxt
->info
.mapping_flags
|=
1594 cpu_to_le16(I40E_AQ_VSI_QUE_MAP_CONTIG
);
1595 ctxt
->info
.queue_mapping
[0] = cpu_to_le16(vsi
->base_queue
);
1597 ctxt
->info
.valid_sections
|= cpu_to_le16(sections
);
1601 * i40e_set_rx_mode - NDO callback to set the netdev filters
1602 * @netdev: network interface device structure
1605 void i40e_set_rx_mode(struct net_device
*netdev
)
1607 static void i40e_set_rx_mode(struct net_device
*netdev
)
1610 struct i40e_netdev_priv
*np
= netdev_priv(netdev
);
1611 struct i40e_mac_filter
*f
, *ftmp
;
1612 struct i40e_vsi
*vsi
= np
->vsi
;
1613 struct netdev_hw_addr
*uca
;
1614 struct netdev_hw_addr
*mca
;
1615 struct netdev_hw_addr
*ha
;
1617 /* add addr if not already in the filter list */
1618 netdev_for_each_uc_addr(uca
, netdev
) {
1619 if (!i40e_find_mac(vsi
, uca
->addr
, false, true)) {
1620 if (i40e_is_vsi_in_vlan(vsi
))
1621 i40e_put_mac_in_vlan(vsi
, uca
->addr
,
1624 i40e_add_filter(vsi
, uca
->addr
, I40E_VLAN_ANY
,
1629 netdev_for_each_mc_addr(mca
, netdev
) {
1630 if (!i40e_find_mac(vsi
, mca
->addr
, false, true)) {
1631 if (i40e_is_vsi_in_vlan(vsi
))
1632 i40e_put_mac_in_vlan(vsi
, mca
->addr
,
1635 i40e_add_filter(vsi
, mca
->addr
, I40E_VLAN_ANY
,
1640 /* remove filter if not in netdev list */
1641 list_for_each_entry_safe(f
, ftmp
, &vsi
->mac_filter_list
, list
) {
1647 if (is_multicast_ether_addr(f
->macaddr
)) {
1648 netdev_for_each_mc_addr(mca
, netdev
) {
1649 if (ether_addr_equal(mca
->addr
, f
->macaddr
)) {
1655 netdev_for_each_uc_addr(uca
, netdev
) {
1656 if (ether_addr_equal(uca
->addr
, f
->macaddr
)) {
1662 for_each_dev_addr(netdev
, ha
) {
1663 if (ether_addr_equal(ha
->addr
, f
->macaddr
)) {
1671 vsi
, f
->macaddr
, I40E_VLAN_ANY
, false, true);
1674 /* check for other flag changes */
1675 if (vsi
->current_netdev_flags
!= vsi
->netdev
->flags
) {
1676 vsi
->flags
|= I40E_VSI_FLAG_FILTER_CHANGED
;
1677 vsi
->back
->flags
|= I40E_FLAG_FILTER_SYNC
;
1682 * i40e_sync_vsi_filters - Update the VSI filter list to the HW
1683 * @vsi: ptr to the VSI
1685 * Push any outstanding VSI filter changes through the AdminQ.
1687 * Returns 0 or error value
1689 int i40e_sync_vsi_filters(struct i40e_vsi
*vsi
)
1691 struct i40e_mac_filter
*f
, *ftmp
;
1692 bool promisc_forced_on
= false;
1693 bool add_happened
= false;
1694 int filter_list_len
= 0;
1695 u32 changed_flags
= 0;
1696 i40e_status aq_ret
= 0;
1702 /* empty array typed pointers, kcalloc later */
1703 struct i40e_aqc_add_macvlan_element_data
*add_list
;
1704 struct i40e_aqc_remove_macvlan_element_data
*del_list
;
1706 while (test_and_set_bit(__I40E_CONFIG_BUSY
, &vsi
->state
))
1707 usleep_range(1000, 2000);
1711 changed_flags
= vsi
->current_netdev_flags
^ vsi
->netdev
->flags
;
1712 vsi
->current_netdev_flags
= vsi
->netdev
->flags
;
1715 if (vsi
->flags
& I40E_VSI_FLAG_FILTER_CHANGED
) {
1716 vsi
->flags
&= ~I40E_VSI_FLAG_FILTER_CHANGED
;
1718 filter_list_len
= pf
->hw
.aq
.asq_buf_size
/
1719 sizeof(struct i40e_aqc_remove_macvlan_element_data
);
1720 del_list
= kcalloc(filter_list_len
,
1721 sizeof(struct i40e_aqc_remove_macvlan_element_data
),
1726 list_for_each_entry_safe(f
, ftmp
, &vsi
->mac_filter_list
, list
) {
1730 if (f
->counter
!= 0)
1735 /* add to delete list */
1736 ether_addr_copy(del_list
[num_del
].mac_addr
, f
->macaddr
);
1737 del_list
[num_del
].vlan_tag
=
1738 cpu_to_le16((u16
)(f
->vlan
==
1739 I40E_VLAN_ANY
? 0 : f
->vlan
));
1741 cmd_flags
|= I40E_AQC_MACVLAN_DEL_PERFECT_MATCH
;
1742 del_list
[num_del
].flags
= cmd_flags
;
1745 /* unlink from filter list */
1749 /* flush a full buffer */
1750 if (num_del
== filter_list_len
) {
1751 aq_ret
= i40e_aq_remove_macvlan(&pf
->hw
,
1752 vsi
->seid
, del_list
, num_del
,
1755 memset(del_list
, 0, sizeof(*del_list
));
1758 pf
->hw
.aq
.asq_last_status
!=
1760 dev_info(&pf
->pdev
->dev
,
1761 "ignoring delete macvlan error, err %d, aq_err %d while flushing a full buffer\n",
1763 pf
->hw
.aq
.asq_last_status
);
1767 aq_ret
= i40e_aq_remove_macvlan(&pf
->hw
, vsi
->seid
,
1768 del_list
, num_del
, NULL
);
1772 pf
->hw
.aq
.asq_last_status
!= I40E_AQ_RC_ENOENT
)
1773 dev_info(&pf
->pdev
->dev
,
1774 "ignoring delete macvlan error, err %d, aq_err %d\n",
1775 aq_ret
, pf
->hw
.aq
.asq_last_status
);
1781 /* do all the adds now */
1782 filter_list_len
= pf
->hw
.aq
.asq_buf_size
/
1783 sizeof(struct i40e_aqc_add_macvlan_element_data
),
1784 add_list
= kcalloc(filter_list_len
,
1785 sizeof(struct i40e_aqc_add_macvlan_element_data
),
1790 list_for_each_entry_safe(f
, ftmp
, &vsi
->mac_filter_list
, list
) {
1794 if (f
->counter
== 0)
1797 add_happened
= true;
1800 /* add to add array */
1801 ether_addr_copy(add_list
[num_add
].mac_addr
, f
->macaddr
);
1802 add_list
[num_add
].vlan_tag
=
1804 (u16
)(f
->vlan
== I40E_VLAN_ANY
? 0 : f
->vlan
));
1805 add_list
[num_add
].queue_number
= 0;
1807 cmd_flags
|= I40E_AQC_MACVLAN_ADD_PERFECT_MATCH
;
1808 add_list
[num_add
].flags
= cpu_to_le16(cmd_flags
);
1811 /* flush a full buffer */
1812 if (num_add
== filter_list_len
) {
1813 aq_ret
= i40e_aq_add_macvlan(&pf
->hw
, vsi
->seid
,
1820 memset(add_list
, 0, sizeof(*add_list
));
1824 aq_ret
= i40e_aq_add_macvlan(&pf
->hw
, vsi
->seid
,
1825 add_list
, num_add
, NULL
);
1831 if (add_happened
&& aq_ret
&&
1832 pf
->hw
.aq
.asq_last_status
!= I40E_AQ_RC_EINVAL
) {
1833 dev_info(&pf
->pdev
->dev
,
1834 "add filter failed, err %d, aq_err %d\n",
1835 aq_ret
, pf
->hw
.aq
.asq_last_status
);
1836 if ((pf
->hw
.aq
.asq_last_status
== I40E_AQ_RC_ENOSPC
) &&
1837 !test_bit(__I40E_FILTER_OVERFLOW_PROMISC
,
1839 promisc_forced_on
= true;
1840 set_bit(__I40E_FILTER_OVERFLOW_PROMISC
,
1842 dev_info(&pf
->pdev
->dev
, "promiscuous mode forced on\n");
1847 /* check for changes in promiscuous modes */
1848 if (changed_flags
& IFF_ALLMULTI
) {
1849 bool cur_multipromisc
;
1850 cur_multipromisc
= !!(vsi
->current_netdev_flags
& IFF_ALLMULTI
);
1851 aq_ret
= i40e_aq_set_vsi_multicast_promiscuous(&vsi
->back
->hw
,
1856 dev_info(&pf
->pdev
->dev
,
1857 "set multi promisc failed, err %d, aq_err %d\n",
1858 aq_ret
, pf
->hw
.aq
.asq_last_status
);
1860 if ((changed_flags
& IFF_PROMISC
) || promisc_forced_on
) {
1862 cur_promisc
= (!!(vsi
->current_netdev_flags
& IFF_PROMISC
) ||
1863 test_bit(__I40E_FILTER_OVERFLOW_PROMISC
,
1865 aq_ret
= i40e_aq_set_vsi_unicast_promiscuous(&vsi
->back
->hw
,
1869 dev_info(&pf
->pdev
->dev
,
1870 "set uni promisc failed, err %d, aq_err %d\n",
1871 aq_ret
, pf
->hw
.aq
.asq_last_status
);
1872 aq_ret
= i40e_aq_set_vsi_broadcast(&vsi
->back
->hw
,
1876 dev_info(&pf
->pdev
->dev
,
1877 "set brdcast promisc failed, err %d, aq_err %d\n",
1878 aq_ret
, pf
->hw
.aq
.asq_last_status
);
1881 clear_bit(__I40E_CONFIG_BUSY
, &vsi
->state
);
1886 * i40e_sync_filters_subtask - Sync the VSI filter list with HW
1887 * @pf: board private structure
1889 static void i40e_sync_filters_subtask(struct i40e_pf
*pf
)
1893 if (!pf
|| !(pf
->flags
& I40E_FLAG_FILTER_SYNC
))
1895 pf
->flags
&= ~I40E_FLAG_FILTER_SYNC
;
1897 for (v
= 0; v
< pf
->num_alloc_vsi
; v
++) {
1899 (pf
->vsi
[v
]->flags
& I40E_VSI_FLAG_FILTER_CHANGED
))
1900 i40e_sync_vsi_filters(pf
->vsi
[v
]);
1905 * i40e_change_mtu - NDO callback to change the Maximum Transfer Unit
1906 * @netdev: network interface device structure
1907 * @new_mtu: new value for maximum frame size
1909 * Returns 0 on success, negative on failure
1911 static int i40e_change_mtu(struct net_device
*netdev
, int new_mtu
)
1913 struct i40e_netdev_priv
*np
= netdev_priv(netdev
);
1914 int max_frame
= new_mtu
+ ETH_HLEN
+ ETH_FCS_LEN
+ VLAN_HLEN
;
1915 struct i40e_vsi
*vsi
= np
->vsi
;
1917 /* MTU < 68 is an error and causes problems on some kernels */
1918 if ((new_mtu
< 68) || (max_frame
> I40E_MAX_RXBUFFER
))
1921 netdev_info(netdev
, "changing MTU from %d to %d\n",
1922 netdev
->mtu
, new_mtu
);
1923 netdev
->mtu
= new_mtu
;
1924 if (netif_running(netdev
))
1925 i40e_vsi_reinit_locked(vsi
);
1931 * i40e_ioctl - Access the hwtstamp interface
1932 * @netdev: network interface device structure
1933 * @ifr: interface request data
1934 * @cmd: ioctl command
1936 int i40e_ioctl(struct net_device
*netdev
, struct ifreq
*ifr
, int cmd
)
1938 struct i40e_netdev_priv
*np
= netdev_priv(netdev
);
1939 struct i40e_pf
*pf
= np
->vsi
->back
;
1943 return i40e_ptp_get_ts_config(pf
, ifr
);
1945 return i40e_ptp_set_ts_config(pf
, ifr
);
1952 * i40e_vlan_stripping_enable - Turn on vlan stripping for the VSI
1953 * @vsi: the vsi being adjusted
1955 void i40e_vlan_stripping_enable(struct i40e_vsi
*vsi
)
1957 struct i40e_vsi_context ctxt
;
1960 if ((vsi
->info
.valid_sections
&
1961 cpu_to_le16(I40E_AQ_VSI_PROP_VLAN_VALID
)) &&
1962 ((vsi
->info
.port_vlan_flags
& I40E_AQ_VSI_PVLAN_MODE_MASK
) == 0))
1963 return; /* already enabled */
1965 vsi
->info
.valid_sections
= cpu_to_le16(I40E_AQ_VSI_PROP_VLAN_VALID
);
1966 vsi
->info
.port_vlan_flags
= I40E_AQ_VSI_PVLAN_MODE_ALL
|
1967 I40E_AQ_VSI_PVLAN_EMOD_STR_BOTH
;
1969 ctxt
.seid
= vsi
->seid
;
1970 memcpy(&ctxt
.info
, &vsi
->info
, sizeof(vsi
->info
));
1971 ret
= i40e_aq_update_vsi_params(&vsi
->back
->hw
, &ctxt
, NULL
);
1973 dev_info(&vsi
->back
->pdev
->dev
,
1974 "%s: update vsi failed, aq_err=%d\n",
1975 __func__
, vsi
->back
->hw
.aq
.asq_last_status
);
1980 * i40e_vlan_stripping_disable - Turn off vlan stripping for the VSI
1981 * @vsi: the vsi being adjusted
1983 void i40e_vlan_stripping_disable(struct i40e_vsi
*vsi
)
1985 struct i40e_vsi_context ctxt
;
1988 if ((vsi
->info
.valid_sections
&
1989 cpu_to_le16(I40E_AQ_VSI_PROP_VLAN_VALID
)) &&
1990 ((vsi
->info
.port_vlan_flags
& I40E_AQ_VSI_PVLAN_EMOD_MASK
) ==
1991 I40E_AQ_VSI_PVLAN_EMOD_MASK
))
1992 return; /* already disabled */
1994 vsi
->info
.valid_sections
= cpu_to_le16(I40E_AQ_VSI_PROP_VLAN_VALID
);
1995 vsi
->info
.port_vlan_flags
= I40E_AQ_VSI_PVLAN_MODE_ALL
|
1996 I40E_AQ_VSI_PVLAN_EMOD_NOTHING
;
1998 ctxt
.seid
= vsi
->seid
;
1999 memcpy(&ctxt
.info
, &vsi
->info
, sizeof(vsi
->info
));
2000 ret
= i40e_aq_update_vsi_params(&vsi
->back
->hw
, &ctxt
, NULL
);
2002 dev_info(&vsi
->back
->pdev
->dev
,
2003 "%s: update vsi failed, aq_err=%d\n",
2004 __func__
, vsi
->back
->hw
.aq
.asq_last_status
);
2009 * i40e_vlan_rx_register - Setup or shutdown vlan offload
2010 * @netdev: network interface to be adjusted
2011 * @features: netdev features to test if VLAN offload is enabled or not
2013 static void i40e_vlan_rx_register(struct net_device
*netdev
, u32 features
)
2015 struct i40e_netdev_priv
*np
= netdev_priv(netdev
);
2016 struct i40e_vsi
*vsi
= np
->vsi
;
2018 if (features
& NETIF_F_HW_VLAN_CTAG_RX
)
2019 i40e_vlan_stripping_enable(vsi
);
2021 i40e_vlan_stripping_disable(vsi
);
2025 * i40e_vsi_add_vlan - Add vsi membership for given vlan
2026 * @vsi: the vsi being configured
2027 * @vid: vlan id to be added (0 = untagged only , -1 = any)
2029 int i40e_vsi_add_vlan(struct i40e_vsi
*vsi
, s16 vid
)
2031 struct i40e_mac_filter
*f
, *add_f
;
2032 bool is_netdev
, is_vf
;
2034 is_vf
= (vsi
->type
== I40E_VSI_SRIOV
);
2035 is_netdev
= !!(vsi
->netdev
);
2038 add_f
= i40e_add_filter(vsi
, vsi
->netdev
->dev_addr
, vid
,
2041 dev_info(&vsi
->back
->pdev
->dev
,
2042 "Could not add vlan filter %d for %pM\n",
2043 vid
, vsi
->netdev
->dev_addr
);
2048 list_for_each_entry(f
, &vsi
->mac_filter_list
, list
) {
2049 add_f
= i40e_add_filter(vsi
, f
->macaddr
, vid
, is_vf
, is_netdev
);
2051 dev_info(&vsi
->back
->pdev
->dev
,
2052 "Could not add vlan filter %d for %pM\n",
2058 /* Now if we add a vlan tag, make sure to check if it is the first
2059 * tag (i.e. a "tag" -1 does exist) and if so replace the -1 "tag"
2060 * with 0, so we now accept untagged and specified tagged traffic
2061 * (and not any taged and untagged)
2064 if (is_netdev
&& i40e_find_filter(vsi
, vsi
->netdev
->dev_addr
,
2066 is_vf
, is_netdev
)) {
2067 i40e_del_filter(vsi
, vsi
->netdev
->dev_addr
,
2068 I40E_VLAN_ANY
, is_vf
, is_netdev
);
2069 add_f
= i40e_add_filter(vsi
, vsi
->netdev
->dev_addr
, 0,
2072 dev_info(&vsi
->back
->pdev
->dev
,
2073 "Could not add filter 0 for %pM\n",
2074 vsi
->netdev
->dev_addr
);
2080 /* Do not assume that I40E_VLAN_ANY should be reset to VLAN 0 */
2081 if (vid
> 0 && !vsi
->info
.pvid
) {
2082 list_for_each_entry(f
, &vsi
->mac_filter_list
, list
) {
2083 if (i40e_find_filter(vsi
, f
->macaddr
, I40E_VLAN_ANY
,
2084 is_vf
, is_netdev
)) {
2085 i40e_del_filter(vsi
, f
->macaddr
, I40E_VLAN_ANY
,
2087 add_f
= i40e_add_filter(vsi
, f
->macaddr
,
2088 0, is_vf
, is_netdev
);
2090 dev_info(&vsi
->back
->pdev
->dev
,
2091 "Could not add filter 0 for %pM\n",
2099 if (test_bit(__I40E_DOWN
, &vsi
->back
->state
) ||
2100 test_bit(__I40E_RESET_RECOVERY_PENDING
, &vsi
->back
->state
))
2103 return i40e_sync_vsi_filters(vsi
);
2107 * i40e_vsi_kill_vlan - Remove vsi membership for given vlan
2108 * @vsi: the vsi being configured
2109 * @vid: vlan id to be removed (0 = untagged only , -1 = any)
2111 * Return: 0 on success or negative otherwise
2113 int i40e_vsi_kill_vlan(struct i40e_vsi
*vsi
, s16 vid
)
2115 struct net_device
*netdev
= vsi
->netdev
;
2116 struct i40e_mac_filter
*f
, *add_f
;
2117 bool is_vf
, is_netdev
;
2118 int filter_count
= 0;
2120 is_vf
= (vsi
->type
== I40E_VSI_SRIOV
);
2121 is_netdev
= !!(netdev
);
2124 i40e_del_filter(vsi
, netdev
->dev_addr
, vid
, is_vf
, is_netdev
);
2126 list_for_each_entry(f
, &vsi
->mac_filter_list
, list
)
2127 i40e_del_filter(vsi
, f
->macaddr
, vid
, is_vf
, is_netdev
);
2129 /* go through all the filters for this VSI and if there is only
2130 * vid == 0 it means there are no other filters, so vid 0 must
2131 * be replaced with -1. This signifies that we should from now
2132 * on accept any traffic (with any tag present, or untagged)
2134 list_for_each_entry(f
, &vsi
->mac_filter_list
, list
) {
2137 ether_addr_equal(netdev
->dev_addr
, f
->macaddr
))
2145 if (!filter_count
&& is_netdev
) {
2146 i40e_del_filter(vsi
, netdev
->dev_addr
, 0, is_vf
, is_netdev
);
2147 f
= i40e_add_filter(vsi
, netdev
->dev_addr
, I40E_VLAN_ANY
,
2150 dev_info(&vsi
->back
->pdev
->dev
,
2151 "Could not add filter %d for %pM\n",
2152 I40E_VLAN_ANY
, netdev
->dev_addr
);
2157 if (!filter_count
) {
2158 list_for_each_entry(f
, &vsi
->mac_filter_list
, list
) {
2159 i40e_del_filter(vsi
, f
->macaddr
, 0, is_vf
, is_netdev
);
2160 add_f
= i40e_add_filter(vsi
, f
->macaddr
, I40E_VLAN_ANY
,
2163 dev_info(&vsi
->back
->pdev
->dev
,
2164 "Could not add filter %d for %pM\n",
2165 I40E_VLAN_ANY
, f
->macaddr
);
2171 if (test_bit(__I40E_DOWN
, &vsi
->back
->state
) ||
2172 test_bit(__I40E_RESET_RECOVERY_PENDING
, &vsi
->back
->state
))
2175 return i40e_sync_vsi_filters(vsi
);
2179 * i40e_vlan_rx_add_vid - Add a vlan id filter to HW offload
2180 * @netdev: network interface to be adjusted
2181 * @vid: vlan id to be added
2183 * net_device_ops implementation for adding vlan ids
2186 int i40e_vlan_rx_add_vid(struct net_device
*netdev
,
2187 __always_unused __be16 proto
, u16 vid
)
2189 static int i40e_vlan_rx_add_vid(struct net_device
*netdev
,
2190 __always_unused __be16 proto
, u16 vid
)
2193 struct i40e_netdev_priv
*np
= netdev_priv(netdev
);
2194 struct i40e_vsi
*vsi
= np
->vsi
;
2200 netdev_info(netdev
, "adding %pM vid=%d\n", netdev
->dev_addr
, vid
);
2202 /* If the network stack called us with vid = 0 then
2203 * it is asking to receive priority tagged packets with
2204 * vlan id 0. Our HW receives them by default when configured
2205 * to receive untagged packets so there is no need to add an
2206 * extra filter for vlan 0 tagged packets.
2209 ret
= i40e_vsi_add_vlan(vsi
, vid
);
2211 if (!ret
&& (vid
< VLAN_N_VID
))
2212 set_bit(vid
, vsi
->active_vlans
);
2218 * i40e_vlan_rx_kill_vid - Remove a vlan id filter from HW offload
2219 * @netdev: network interface to be adjusted
2220 * @vid: vlan id to be removed
2222 * net_device_ops implementation for removing vlan ids
2225 int i40e_vlan_rx_kill_vid(struct net_device
*netdev
,
2226 __always_unused __be16 proto
, u16 vid
)
2228 static int i40e_vlan_rx_kill_vid(struct net_device
*netdev
,
2229 __always_unused __be16 proto
, u16 vid
)
2232 struct i40e_netdev_priv
*np
= netdev_priv(netdev
);
2233 struct i40e_vsi
*vsi
= np
->vsi
;
2235 netdev_info(netdev
, "removing %pM vid=%d\n", netdev
->dev_addr
, vid
);
2237 /* return code is ignored as there is nothing a user
2238 * can do about failure to remove and a log message was
2239 * already printed from the other function
2241 i40e_vsi_kill_vlan(vsi
, vid
);
2243 clear_bit(vid
, vsi
->active_vlans
);
2249 * i40e_restore_vlan - Reinstate vlans when vsi/netdev comes back up
2250 * @vsi: the vsi being brought back up
2252 static void i40e_restore_vlan(struct i40e_vsi
*vsi
)
2259 i40e_vlan_rx_register(vsi
->netdev
, vsi
->netdev
->features
);
2261 for_each_set_bit(vid
, vsi
->active_vlans
, VLAN_N_VID
)
2262 i40e_vlan_rx_add_vid(vsi
->netdev
, htons(ETH_P_8021Q
),
2267 * i40e_vsi_add_pvid - Add pvid for the VSI
2268 * @vsi: the vsi being adjusted
2269 * @vid: the vlan id to set as a PVID
2271 int i40e_vsi_add_pvid(struct i40e_vsi
*vsi
, u16 vid
)
2273 struct i40e_vsi_context ctxt
;
2276 vsi
->info
.valid_sections
= cpu_to_le16(I40E_AQ_VSI_PROP_VLAN_VALID
);
2277 vsi
->info
.pvid
= cpu_to_le16(vid
);
2278 vsi
->info
.port_vlan_flags
= I40E_AQ_VSI_PVLAN_MODE_TAGGED
|
2279 I40E_AQ_VSI_PVLAN_INSERT_PVID
|
2280 I40E_AQ_VSI_PVLAN_EMOD_STR
;
2282 ctxt
.seid
= vsi
->seid
;
2283 memcpy(&ctxt
.info
, &vsi
->info
, sizeof(vsi
->info
));
2284 aq_ret
= i40e_aq_update_vsi_params(&vsi
->back
->hw
, &ctxt
, NULL
);
2286 dev_info(&vsi
->back
->pdev
->dev
,
2287 "%s: update vsi failed, aq_err=%d\n",
2288 __func__
, vsi
->back
->hw
.aq
.asq_last_status
);
2296 * i40e_vsi_remove_pvid - Remove the pvid from the VSI
2297 * @vsi: the vsi being adjusted
2299 * Just use the vlan_rx_register() service to put it back to normal
2301 void i40e_vsi_remove_pvid(struct i40e_vsi
*vsi
)
2303 i40e_vlan_stripping_disable(vsi
);
2309 * i40e_vsi_setup_tx_resources - Allocate VSI Tx queue resources
2310 * @vsi: ptr to the VSI
2312 * If this function returns with an error, then it's possible one or
2313 * more of the rings is populated (while the rest are not). It is the
2314 * callers duty to clean those orphaned rings.
2316 * Return 0 on success, negative on failure
2318 static int i40e_vsi_setup_tx_resources(struct i40e_vsi
*vsi
)
2322 for (i
= 0; i
< vsi
->num_queue_pairs
&& !err
; i
++)
2323 err
= i40e_setup_tx_descriptors(vsi
->tx_rings
[i
]);
2329 * i40e_vsi_free_tx_resources - Free Tx resources for VSI queues
2330 * @vsi: ptr to the VSI
2332 * Free VSI's transmit software resources
2334 static void i40e_vsi_free_tx_resources(struct i40e_vsi
*vsi
)
2341 for (i
= 0; i
< vsi
->num_queue_pairs
; i
++)
2342 if (vsi
->tx_rings
[i
] && vsi
->tx_rings
[i
]->desc
)
2343 i40e_free_tx_resources(vsi
->tx_rings
[i
]);
2347 * i40e_vsi_setup_rx_resources - Allocate VSI queues Rx resources
2348 * @vsi: ptr to the VSI
2350 * If this function returns with an error, then it's possible one or
2351 * more of the rings is populated (while the rest are not). It is the
2352 * callers duty to clean those orphaned rings.
2354 * Return 0 on success, negative on failure
2356 static int i40e_vsi_setup_rx_resources(struct i40e_vsi
*vsi
)
2360 for (i
= 0; i
< vsi
->num_queue_pairs
&& !err
; i
++)
2361 err
= i40e_setup_rx_descriptors(vsi
->rx_rings
[i
]);
2363 i40e_fcoe_setup_ddp_resources(vsi
);
2369 * i40e_vsi_free_rx_resources - Free Rx Resources for VSI queues
2370 * @vsi: ptr to the VSI
2372 * Free all receive software resources
2374 static void i40e_vsi_free_rx_resources(struct i40e_vsi
*vsi
)
2381 for (i
= 0; i
< vsi
->num_queue_pairs
; i
++)
2382 if (vsi
->rx_rings
[i
] && vsi
->rx_rings
[i
]->desc
)
2383 i40e_free_rx_resources(vsi
->rx_rings
[i
]);
2385 i40e_fcoe_free_ddp_resources(vsi
);
2390 * i40e_config_xps_tx_ring - Configure XPS for a Tx ring
2391 * @ring: The Tx ring to configure
2393 * This enables/disables XPS for a given Tx descriptor ring
2394 * based on the TCs enabled for the VSI that ring belongs to.
2396 static void i40e_config_xps_tx_ring(struct i40e_ring
*ring
)
2398 struct i40e_vsi
*vsi
= ring
->vsi
;
2401 if (ring
->q_vector
&& ring
->netdev
) {
2402 /* Single TC mode enable XPS */
2403 if (vsi
->tc_config
.numtc
<= 1 &&
2404 !test_and_set_bit(__I40E_TX_XPS_INIT_DONE
, &ring
->state
)) {
2405 netif_set_xps_queue(ring
->netdev
,
2406 &ring
->q_vector
->affinity_mask
,
2408 } else if (alloc_cpumask_var(&mask
, GFP_KERNEL
)) {
2409 /* Disable XPS to allow selection based on TC */
2410 bitmap_zero(cpumask_bits(mask
), nr_cpumask_bits
);
2411 netif_set_xps_queue(ring
->netdev
, mask
,
2413 free_cpumask_var(mask
);
2419 * i40e_configure_tx_ring - Configure a transmit ring context and rest
2420 * @ring: The Tx ring to configure
2422 * Configure the Tx descriptor ring in the HMC context.
2424 static int i40e_configure_tx_ring(struct i40e_ring
*ring
)
2426 struct i40e_vsi
*vsi
= ring
->vsi
;
2427 u16 pf_q
= vsi
->base_queue
+ ring
->queue_index
;
2428 struct i40e_hw
*hw
= &vsi
->back
->hw
;
2429 struct i40e_hmc_obj_txq tx_ctx
;
2430 i40e_status err
= 0;
2433 /* some ATR related tx ring init */
2434 if (vsi
->back
->flags
& I40E_FLAG_FD_ATR_ENABLED
) {
2435 ring
->atr_sample_rate
= vsi
->back
->atr_sample_rate
;
2436 ring
->atr_count
= 0;
2438 ring
->atr_sample_rate
= 0;
2442 i40e_config_xps_tx_ring(ring
);
2444 /* clear the context structure first */
2445 memset(&tx_ctx
, 0, sizeof(tx_ctx
));
2447 tx_ctx
.new_context
= 1;
2448 tx_ctx
.base
= (ring
->dma
/ 128);
2449 tx_ctx
.qlen
= ring
->count
;
2450 tx_ctx
.fd_ena
= !!(vsi
->back
->flags
& (I40E_FLAG_FD_SB_ENABLED
|
2451 I40E_FLAG_FD_ATR_ENABLED
));
2453 tx_ctx
.fc_ena
= (vsi
->type
== I40E_VSI_FCOE
);
2455 tx_ctx
.timesync_ena
= !!(vsi
->back
->flags
& I40E_FLAG_PTP
);
2456 /* FDIR VSI tx ring can still use RS bit and writebacks */
2457 if (vsi
->type
!= I40E_VSI_FDIR
)
2458 tx_ctx
.head_wb_ena
= 1;
2459 tx_ctx
.head_wb_addr
= ring
->dma
+
2460 (ring
->count
* sizeof(struct i40e_tx_desc
));
2462 /* As part of VSI creation/update, FW allocates certain
2463 * Tx arbitration queue sets for each TC enabled for
2464 * the VSI. The FW returns the handles to these queue
2465 * sets as part of the response buffer to Add VSI,
2466 * Update VSI, etc. AQ commands. It is expected that
2467 * these queue set handles be associated with the Tx
2468 * queues by the driver as part of the TX queue context
2469 * initialization. This has to be done regardless of
2470 * DCB as by default everything is mapped to TC0.
2472 tx_ctx
.rdylist
= le16_to_cpu(vsi
->info
.qs_handle
[ring
->dcb_tc
]);
2473 tx_ctx
.rdylist_act
= 0;
2475 /* clear the context in the HMC */
2476 err
= i40e_clear_lan_tx_queue_context(hw
, pf_q
);
2478 dev_info(&vsi
->back
->pdev
->dev
,
2479 "Failed to clear LAN Tx queue context on Tx ring %d (pf_q %d), error: %d\n",
2480 ring
->queue_index
, pf_q
, err
);
2484 /* set the context in the HMC */
2485 err
= i40e_set_lan_tx_queue_context(hw
, pf_q
, &tx_ctx
);
2487 dev_info(&vsi
->back
->pdev
->dev
,
2488 "Failed to set LAN Tx queue context on Tx ring %d (pf_q %d, error: %d\n",
2489 ring
->queue_index
, pf_q
, err
);
2493 /* Now associate this queue with this PCI function */
2494 if (vsi
->type
== I40E_VSI_VMDQ2
) {
2495 qtx_ctl
= I40E_QTX_CTL_VM_QUEUE
;
2496 qtx_ctl
|= ((vsi
->id
) << I40E_QTX_CTL_VFVM_INDX_SHIFT
) &
2497 I40E_QTX_CTL_VFVM_INDX_MASK
;
2499 qtx_ctl
= I40E_QTX_CTL_PF_QUEUE
;
2502 qtx_ctl
|= ((hw
->pf_id
<< I40E_QTX_CTL_PF_INDX_SHIFT
) &
2503 I40E_QTX_CTL_PF_INDX_MASK
);
2504 wr32(hw
, I40E_QTX_CTL(pf_q
), qtx_ctl
);
2507 clear_bit(__I40E_HANG_CHECK_ARMED
, &ring
->state
);
2509 /* cache tail off for easier writes later */
2510 ring
->tail
= hw
->hw_addr
+ I40E_QTX_TAIL(pf_q
);
2516 * i40e_configure_rx_ring - Configure a receive ring context
2517 * @ring: The Rx ring to configure
2519 * Configure the Rx descriptor ring in the HMC context.
2521 static int i40e_configure_rx_ring(struct i40e_ring
*ring
)
2523 struct i40e_vsi
*vsi
= ring
->vsi
;
2524 u32 chain_len
= vsi
->back
->hw
.func_caps
.rx_buf_chain_len
;
2525 u16 pf_q
= vsi
->base_queue
+ ring
->queue_index
;
2526 struct i40e_hw
*hw
= &vsi
->back
->hw
;
2527 struct i40e_hmc_obj_rxq rx_ctx
;
2528 i40e_status err
= 0;
2532 /* clear the context structure first */
2533 memset(&rx_ctx
, 0, sizeof(rx_ctx
));
2535 ring
->rx_buf_len
= vsi
->rx_buf_len
;
2536 ring
->rx_hdr_len
= vsi
->rx_hdr_len
;
2538 rx_ctx
.dbuff
= ring
->rx_buf_len
>> I40E_RXQ_CTX_DBUFF_SHIFT
;
2539 rx_ctx
.hbuff
= ring
->rx_hdr_len
>> I40E_RXQ_CTX_HBUFF_SHIFT
;
2541 rx_ctx
.base
= (ring
->dma
/ 128);
2542 rx_ctx
.qlen
= ring
->count
;
2544 if (vsi
->back
->flags
& I40E_FLAG_16BYTE_RX_DESC_ENABLED
) {
2545 set_ring_16byte_desc_enabled(ring
);
2551 rx_ctx
.dtype
= vsi
->dtype
;
2553 set_ring_ps_enabled(ring
);
2554 rx_ctx
.hsplit_0
= I40E_RX_SPLIT_L2
|
2556 I40E_RX_SPLIT_TCP_UDP
|
2559 rx_ctx
.hsplit_0
= 0;
2562 rx_ctx
.rxmax
= min_t(u16
, vsi
->max_frame
,
2563 (chain_len
* ring
->rx_buf_len
));
2564 if (hw
->revision_id
== 0)
2565 rx_ctx
.lrxqthresh
= 0;
2567 rx_ctx
.lrxqthresh
= 2;
2568 rx_ctx
.crcstrip
= 1;
2572 rx_ctx
.fc_ena
= (vsi
->type
== I40E_VSI_FCOE
);
2574 /* set the prefena field to 1 because the manual says to */
2577 /* clear the context in the HMC */
2578 err
= i40e_clear_lan_rx_queue_context(hw
, pf_q
);
2580 dev_info(&vsi
->back
->pdev
->dev
,
2581 "Failed to clear LAN Rx queue context on Rx ring %d (pf_q %d), error: %d\n",
2582 ring
->queue_index
, pf_q
, err
);
2586 /* set the context in the HMC */
2587 err
= i40e_set_lan_rx_queue_context(hw
, pf_q
, &rx_ctx
);
2589 dev_info(&vsi
->back
->pdev
->dev
,
2590 "Failed to set LAN Rx queue context on Rx ring %d (pf_q %d), error: %d\n",
2591 ring
->queue_index
, pf_q
, err
);
2595 /* cache tail for quicker writes, and clear the reg before use */
2596 ring
->tail
= hw
->hw_addr
+ I40E_QRX_TAIL(pf_q
);
2597 writel(0, ring
->tail
);
2599 i40e_alloc_rx_buffers(ring
, I40E_DESC_UNUSED(ring
));
2605 * i40e_vsi_configure_tx - Configure the VSI for Tx
2606 * @vsi: VSI structure describing this set of rings and resources
2608 * Configure the Tx VSI for operation.
2610 static int i40e_vsi_configure_tx(struct i40e_vsi
*vsi
)
2615 for (i
= 0; (i
< vsi
->num_queue_pairs
) && !err
; i
++)
2616 err
= i40e_configure_tx_ring(vsi
->tx_rings
[i
]);
2622 * i40e_vsi_configure_rx - Configure the VSI for Rx
2623 * @vsi: the VSI being configured
2625 * Configure the Rx VSI for operation.
2627 static int i40e_vsi_configure_rx(struct i40e_vsi
*vsi
)
2632 if (vsi
->netdev
&& (vsi
->netdev
->mtu
> ETH_DATA_LEN
))
2633 vsi
->max_frame
= vsi
->netdev
->mtu
+ ETH_HLEN
2634 + ETH_FCS_LEN
+ VLAN_HLEN
;
2636 vsi
->max_frame
= I40E_RXBUFFER_2048
;
2638 /* figure out correct receive buffer length */
2639 switch (vsi
->back
->flags
& (I40E_FLAG_RX_1BUF_ENABLED
|
2640 I40E_FLAG_RX_PS_ENABLED
)) {
2641 case I40E_FLAG_RX_1BUF_ENABLED
:
2642 vsi
->rx_hdr_len
= 0;
2643 vsi
->rx_buf_len
= vsi
->max_frame
;
2644 vsi
->dtype
= I40E_RX_DTYPE_NO_SPLIT
;
2646 case I40E_FLAG_RX_PS_ENABLED
:
2647 vsi
->rx_hdr_len
= I40E_RX_HDR_SIZE
;
2648 vsi
->rx_buf_len
= I40E_RXBUFFER_2048
;
2649 vsi
->dtype
= I40E_RX_DTYPE_HEADER_SPLIT
;
2652 vsi
->rx_hdr_len
= I40E_RX_HDR_SIZE
;
2653 vsi
->rx_buf_len
= I40E_RXBUFFER_2048
;
2654 vsi
->dtype
= I40E_RX_DTYPE_SPLIT_ALWAYS
;
2659 /* setup rx buffer for FCoE */
2660 if ((vsi
->type
== I40E_VSI_FCOE
) &&
2661 (vsi
->back
->flags
& I40E_FLAG_FCOE_ENABLED
)) {
2662 vsi
->rx_hdr_len
= 0;
2663 vsi
->rx_buf_len
= I40E_RXBUFFER_3072
;
2664 vsi
->max_frame
= I40E_RXBUFFER_3072
;
2665 vsi
->dtype
= I40E_RX_DTYPE_NO_SPLIT
;
2668 #endif /* I40E_FCOE */
2669 /* round up for the chip's needs */
2670 vsi
->rx_hdr_len
= ALIGN(vsi
->rx_hdr_len
,
2671 (1 << I40E_RXQ_CTX_HBUFF_SHIFT
));
2672 vsi
->rx_buf_len
= ALIGN(vsi
->rx_buf_len
,
2673 (1 << I40E_RXQ_CTX_DBUFF_SHIFT
));
2675 /* set up individual rings */
2676 for (i
= 0; i
< vsi
->num_queue_pairs
&& !err
; i
++)
2677 err
= i40e_configure_rx_ring(vsi
->rx_rings
[i
]);
2683 * i40e_vsi_config_dcb_rings - Update rings to reflect DCB TC
2684 * @vsi: ptr to the VSI
2686 static void i40e_vsi_config_dcb_rings(struct i40e_vsi
*vsi
)
2688 struct i40e_ring
*tx_ring
, *rx_ring
;
2689 u16 qoffset
, qcount
;
2692 if (!(vsi
->back
->flags
& I40E_FLAG_DCB_ENABLED
)) {
2693 /* Reset the TC information */
2694 for (i
= 0; i
< vsi
->num_queue_pairs
; i
++) {
2695 rx_ring
= vsi
->rx_rings
[i
];
2696 tx_ring
= vsi
->tx_rings
[i
];
2697 rx_ring
->dcb_tc
= 0;
2698 tx_ring
->dcb_tc
= 0;
2702 for (n
= 0; n
< I40E_MAX_TRAFFIC_CLASS
; n
++) {
2703 if (!(vsi
->tc_config
.enabled_tc
& (1 << n
)))
2706 qoffset
= vsi
->tc_config
.tc_info
[n
].qoffset
;
2707 qcount
= vsi
->tc_config
.tc_info
[n
].qcount
;
2708 for (i
= qoffset
; i
< (qoffset
+ qcount
); i
++) {
2709 rx_ring
= vsi
->rx_rings
[i
];
2710 tx_ring
= vsi
->tx_rings
[i
];
2711 rx_ring
->dcb_tc
= n
;
2712 tx_ring
->dcb_tc
= n
;
2718 * i40e_set_vsi_rx_mode - Call set_rx_mode on a VSI
2719 * @vsi: ptr to the VSI
2721 static void i40e_set_vsi_rx_mode(struct i40e_vsi
*vsi
)
2724 i40e_set_rx_mode(vsi
->netdev
);
2728 * i40e_fdir_filter_restore - Restore the Sideband Flow Director filters
2729 * @vsi: Pointer to the targeted VSI
2731 * This function replays the hlist on the hw where all the SB Flow Director
2732 * filters were saved.
2734 static void i40e_fdir_filter_restore(struct i40e_vsi
*vsi
)
2736 struct i40e_fdir_filter
*filter
;
2737 struct i40e_pf
*pf
= vsi
->back
;
2738 struct hlist_node
*node
;
2740 if (!(pf
->flags
& I40E_FLAG_FD_SB_ENABLED
))
2743 hlist_for_each_entry_safe(filter
, node
,
2744 &pf
->fdir_filter_list
, fdir_node
) {
2745 i40e_add_del_fdir(vsi
, filter
, true);
2750 * i40e_vsi_configure - Set up the VSI for action
2751 * @vsi: the VSI being configured
2753 static int i40e_vsi_configure(struct i40e_vsi
*vsi
)
2757 i40e_set_vsi_rx_mode(vsi
);
2758 i40e_restore_vlan(vsi
);
2759 i40e_vsi_config_dcb_rings(vsi
);
2760 err
= i40e_vsi_configure_tx(vsi
);
2762 err
= i40e_vsi_configure_rx(vsi
);
2768 * i40e_vsi_configure_msix - MSIX mode Interrupt Config in the HW
2769 * @vsi: the VSI being configured
2771 static void i40e_vsi_configure_msix(struct i40e_vsi
*vsi
)
2773 struct i40e_pf
*pf
= vsi
->back
;
2774 struct i40e_q_vector
*q_vector
;
2775 struct i40e_hw
*hw
= &pf
->hw
;
2781 /* The interrupt indexing is offset by 1 in the PFINT_ITRn
2782 * and PFINT_LNKLSTn registers, e.g.:
2783 * PFINT_ITRn[0..n-1] gets msix-1..msix-n (qpair interrupts)
2785 qp
= vsi
->base_queue
;
2786 vector
= vsi
->base_vector
;
2787 for (i
= 0; i
< vsi
->num_q_vectors
; i
++, vector
++) {
2788 q_vector
= vsi
->q_vectors
[i
];
2789 q_vector
->rx
.itr
= ITR_TO_REG(vsi
->rx_itr_setting
);
2790 q_vector
->rx
.latency_range
= I40E_LOW_LATENCY
;
2791 wr32(hw
, I40E_PFINT_ITRN(I40E_RX_ITR
, vector
- 1),
2793 q_vector
->tx
.itr
= ITR_TO_REG(vsi
->tx_itr_setting
);
2794 q_vector
->tx
.latency_range
= I40E_LOW_LATENCY
;
2795 wr32(hw
, I40E_PFINT_ITRN(I40E_TX_ITR
, vector
- 1),
2798 /* Linked list for the queuepairs assigned to this vector */
2799 wr32(hw
, I40E_PFINT_LNKLSTN(vector
- 1), qp
);
2800 for (q
= 0; q
< q_vector
->num_ringpairs
; q
++) {
2801 val
= I40E_QINT_RQCTL_CAUSE_ENA_MASK
|
2802 (I40E_RX_ITR
<< I40E_QINT_RQCTL_ITR_INDX_SHIFT
) |
2803 (vector
<< I40E_QINT_RQCTL_MSIX_INDX_SHIFT
) |
2804 (qp
<< I40E_QINT_RQCTL_NEXTQ_INDX_SHIFT
)|
2806 << I40E_QINT_RQCTL_NEXTQ_TYPE_SHIFT
);
2808 wr32(hw
, I40E_QINT_RQCTL(qp
), val
);
2810 val
= I40E_QINT_TQCTL_CAUSE_ENA_MASK
|
2811 (I40E_TX_ITR
<< I40E_QINT_TQCTL_ITR_INDX_SHIFT
) |
2812 (vector
<< I40E_QINT_TQCTL_MSIX_INDX_SHIFT
) |
2813 ((qp
+1) << I40E_QINT_TQCTL_NEXTQ_INDX_SHIFT
)|
2815 << I40E_QINT_TQCTL_NEXTQ_TYPE_SHIFT
);
2817 /* Terminate the linked list */
2818 if (q
== (q_vector
->num_ringpairs
- 1))
2819 val
|= (I40E_QUEUE_END_OF_LIST
2820 << I40E_QINT_TQCTL_NEXTQ_INDX_SHIFT
);
2822 wr32(hw
, I40E_QINT_TQCTL(qp
), val
);
2831 * i40e_enable_misc_int_causes - enable the non-queue interrupts
2832 * @hw: ptr to the hardware info
2834 static void i40e_enable_misc_int_causes(struct i40e_pf
*pf
)
2836 struct i40e_hw
*hw
= &pf
->hw
;
2839 /* clear things first */
2840 wr32(hw
, I40E_PFINT_ICR0_ENA
, 0); /* disable all */
2841 rd32(hw
, I40E_PFINT_ICR0
); /* read to clear */
2843 val
= I40E_PFINT_ICR0_ENA_ECC_ERR_MASK
|
2844 I40E_PFINT_ICR0_ENA_MAL_DETECT_MASK
|
2845 I40E_PFINT_ICR0_ENA_GRST_MASK
|
2846 I40E_PFINT_ICR0_ENA_PCI_EXCEPTION_MASK
|
2847 I40E_PFINT_ICR0_ENA_GPIO_MASK
|
2848 I40E_PFINT_ICR0_ENA_HMC_ERR_MASK
|
2849 I40E_PFINT_ICR0_ENA_VFLR_MASK
|
2850 I40E_PFINT_ICR0_ENA_ADMINQ_MASK
;
2852 if (pf
->flags
& I40E_FLAG_PTP
)
2853 val
|= I40E_PFINT_ICR0_ENA_TIMESYNC_MASK
;
2855 wr32(hw
, I40E_PFINT_ICR0_ENA
, val
);
2857 /* SW_ITR_IDX = 0, but don't change INTENA */
2858 wr32(hw
, I40E_PFINT_DYN_CTL0
, I40E_PFINT_DYN_CTL0_SW_ITR_INDX_MASK
|
2859 I40E_PFINT_DYN_CTL0_INTENA_MSK_MASK
);
2861 /* OTHER_ITR_IDX = 0 */
2862 wr32(hw
, I40E_PFINT_STAT_CTL0
, 0);
2866 * i40e_configure_msi_and_legacy - Legacy mode interrupt config in the HW
2867 * @vsi: the VSI being configured
2869 static void i40e_configure_msi_and_legacy(struct i40e_vsi
*vsi
)
2871 struct i40e_q_vector
*q_vector
= vsi
->q_vectors
[0];
2872 struct i40e_pf
*pf
= vsi
->back
;
2873 struct i40e_hw
*hw
= &pf
->hw
;
2876 /* set the ITR configuration */
2877 q_vector
->rx
.itr
= ITR_TO_REG(vsi
->rx_itr_setting
);
2878 q_vector
->rx
.latency_range
= I40E_LOW_LATENCY
;
2879 wr32(hw
, I40E_PFINT_ITR0(I40E_RX_ITR
), q_vector
->rx
.itr
);
2880 q_vector
->tx
.itr
= ITR_TO_REG(vsi
->tx_itr_setting
);
2881 q_vector
->tx
.latency_range
= I40E_LOW_LATENCY
;
2882 wr32(hw
, I40E_PFINT_ITR0(I40E_TX_ITR
), q_vector
->tx
.itr
);
2884 i40e_enable_misc_int_causes(pf
);
2886 /* FIRSTQ_INDX = 0, FIRSTQ_TYPE = 0 (rx) */
2887 wr32(hw
, I40E_PFINT_LNKLST0
, 0);
2889 /* Associate the queue pair to the vector and enable the queue int */
2890 val
= I40E_QINT_RQCTL_CAUSE_ENA_MASK
|
2891 (I40E_RX_ITR
<< I40E_QINT_RQCTL_ITR_INDX_SHIFT
) |
2892 (I40E_QUEUE_TYPE_TX
<< I40E_QINT_TQCTL_NEXTQ_TYPE_SHIFT
);
2894 wr32(hw
, I40E_QINT_RQCTL(0), val
);
2896 val
= I40E_QINT_TQCTL_CAUSE_ENA_MASK
|
2897 (I40E_TX_ITR
<< I40E_QINT_TQCTL_ITR_INDX_SHIFT
) |
2898 (I40E_QUEUE_END_OF_LIST
<< I40E_QINT_TQCTL_NEXTQ_INDX_SHIFT
);
2900 wr32(hw
, I40E_QINT_TQCTL(0), val
);
2905 * i40e_irq_dynamic_disable_icr0 - Disable default interrupt generation for icr0
2906 * @pf: board private structure
2908 void i40e_irq_dynamic_disable_icr0(struct i40e_pf
*pf
)
2910 struct i40e_hw
*hw
= &pf
->hw
;
2912 wr32(hw
, I40E_PFINT_DYN_CTL0
,
2913 I40E_ITR_NONE
<< I40E_PFINT_DYN_CTLN_ITR_INDX_SHIFT
);
2918 * i40e_irq_dynamic_enable_icr0 - Enable default interrupt generation for icr0
2919 * @pf: board private structure
2921 void i40e_irq_dynamic_enable_icr0(struct i40e_pf
*pf
)
2923 struct i40e_hw
*hw
= &pf
->hw
;
2926 val
= I40E_PFINT_DYN_CTL0_INTENA_MASK
|
2927 I40E_PFINT_DYN_CTL0_CLEARPBA_MASK
|
2928 (I40E_ITR_NONE
<< I40E_PFINT_DYN_CTL0_ITR_INDX_SHIFT
);
2930 wr32(hw
, I40E_PFINT_DYN_CTL0
, val
);
2935 * i40e_irq_dynamic_enable - Enable default interrupt generation settings
2936 * @vsi: pointer to a vsi
2937 * @vector: enable a particular Hw Interrupt vector
2939 void i40e_irq_dynamic_enable(struct i40e_vsi
*vsi
, int vector
)
2941 struct i40e_pf
*pf
= vsi
->back
;
2942 struct i40e_hw
*hw
= &pf
->hw
;
2945 val
= I40E_PFINT_DYN_CTLN_INTENA_MASK
|
2946 I40E_PFINT_DYN_CTLN_CLEARPBA_MASK
|
2947 (I40E_ITR_NONE
<< I40E_PFINT_DYN_CTLN_ITR_INDX_SHIFT
);
2948 wr32(hw
, I40E_PFINT_DYN_CTLN(vector
- 1), val
);
2949 /* skip the flush */
2953 * i40e_irq_dynamic_disable - Disable default interrupt generation settings
2954 * @vsi: pointer to a vsi
2955 * @vector: disable a particular Hw Interrupt vector
2957 void i40e_irq_dynamic_disable(struct i40e_vsi
*vsi
, int vector
)
2959 struct i40e_pf
*pf
= vsi
->back
;
2960 struct i40e_hw
*hw
= &pf
->hw
;
2963 val
= I40E_ITR_NONE
<< I40E_PFINT_DYN_CTLN_ITR_INDX_SHIFT
;
2964 wr32(hw
, I40E_PFINT_DYN_CTLN(vector
- 1), val
);
2969 * i40e_msix_clean_rings - MSIX mode Interrupt Handler
2970 * @irq: interrupt number
2971 * @data: pointer to a q_vector
2973 static irqreturn_t
i40e_msix_clean_rings(int irq
, void *data
)
2975 struct i40e_q_vector
*q_vector
= data
;
2977 if (!q_vector
->tx
.ring
&& !q_vector
->rx
.ring
)
2980 napi_schedule(&q_vector
->napi
);
2986 * i40e_vsi_request_irq_msix - Initialize MSI-X interrupts
2987 * @vsi: the VSI being configured
2988 * @basename: name for the vector
2990 * Allocates MSI-X vectors and requests interrupts from the kernel.
2992 static int i40e_vsi_request_irq_msix(struct i40e_vsi
*vsi
, char *basename
)
2994 int q_vectors
= vsi
->num_q_vectors
;
2995 struct i40e_pf
*pf
= vsi
->back
;
2996 int base
= vsi
->base_vector
;
3001 for (vector
= 0; vector
< q_vectors
; vector
++) {
3002 struct i40e_q_vector
*q_vector
= vsi
->q_vectors
[vector
];
3004 if (q_vector
->tx
.ring
&& q_vector
->rx
.ring
) {
3005 snprintf(q_vector
->name
, sizeof(q_vector
->name
) - 1,
3006 "%s-%s-%d", basename
, "TxRx", rx_int_idx
++);
3008 } else if (q_vector
->rx
.ring
) {
3009 snprintf(q_vector
->name
, sizeof(q_vector
->name
) - 1,
3010 "%s-%s-%d", basename
, "rx", rx_int_idx
++);
3011 } else if (q_vector
->tx
.ring
) {
3012 snprintf(q_vector
->name
, sizeof(q_vector
->name
) - 1,
3013 "%s-%s-%d", basename
, "tx", tx_int_idx
++);
3015 /* skip this unused q_vector */
3018 err
= request_irq(pf
->msix_entries
[base
+ vector
].vector
,
3024 dev_info(&pf
->pdev
->dev
,
3025 "%s: request_irq failed, error: %d\n",
3027 goto free_queue_irqs
;
3029 /* assign the mask for this irq */
3030 irq_set_affinity_hint(pf
->msix_entries
[base
+ vector
].vector
,
3031 &q_vector
->affinity_mask
);
3034 vsi
->irqs_ready
= true;
3040 irq_set_affinity_hint(pf
->msix_entries
[base
+ vector
].vector
,
3042 free_irq(pf
->msix_entries
[base
+ vector
].vector
,
3043 &(vsi
->q_vectors
[vector
]));
3049 * i40e_vsi_disable_irq - Mask off queue interrupt generation on the VSI
3050 * @vsi: the VSI being un-configured
3052 static void i40e_vsi_disable_irq(struct i40e_vsi
*vsi
)
3054 struct i40e_pf
*pf
= vsi
->back
;
3055 struct i40e_hw
*hw
= &pf
->hw
;
3056 int base
= vsi
->base_vector
;
3059 for (i
= 0; i
< vsi
->num_queue_pairs
; i
++) {
3060 wr32(hw
, I40E_QINT_TQCTL(vsi
->tx_rings
[i
]->reg_idx
), 0);
3061 wr32(hw
, I40E_QINT_RQCTL(vsi
->rx_rings
[i
]->reg_idx
), 0);
3064 if (pf
->flags
& I40E_FLAG_MSIX_ENABLED
) {
3065 for (i
= vsi
->base_vector
;
3066 i
< (vsi
->num_q_vectors
+ vsi
->base_vector
); i
++)
3067 wr32(hw
, I40E_PFINT_DYN_CTLN(i
- 1), 0);
3070 for (i
= 0; i
< vsi
->num_q_vectors
; i
++)
3071 synchronize_irq(pf
->msix_entries
[i
+ base
].vector
);
3073 /* Legacy and MSI mode - this stops all interrupt handling */
3074 wr32(hw
, I40E_PFINT_ICR0_ENA
, 0);
3075 wr32(hw
, I40E_PFINT_DYN_CTL0
, 0);
3077 synchronize_irq(pf
->pdev
->irq
);
3082 * i40e_vsi_enable_irq - Enable IRQ for the given VSI
3083 * @vsi: the VSI being configured
3085 static int i40e_vsi_enable_irq(struct i40e_vsi
*vsi
)
3087 struct i40e_pf
*pf
= vsi
->back
;
3090 if (pf
->flags
& I40E_FLAG_MSIX_ENABLED
) {
3091 for (i
= vsi
->base_vector
;
3092 i
< (vsi
->num_q_vectors
+ vsi
->base_vector
); i
++)
3093 i40e_irq_dynamic_enable(vsi
, i
);
3095 i40e_irq_dynamic_enable_icr0(pf
);
3098 i40e_flush(&pf
->hw
);
3103 * i40e_stop_misc_vector - Stop the vector that handles non-queue events
3104 * @pf: board private structure
3106 static void i40e_stop_misc_vector(struct i40e_pf
*pf
)
3109 wr32(&pf
->hw
, I40E_PFINT_ICR0_ENA
, 0);
3110 i40e_flush(&pf
->hw
);
3114 * i40e_intr - MSI/Legacy and non-queue interrupt handler
3115 * @irq: interrupt number
3116 * @data: pointer to a q_vector
3118 * This is the handler used for all MSI/Legacy interrupts, and deals
3119 * with both queue and non-queue interrupts. This is also used in
3120 * MSIX mode to handle the non-queue interrupts.
3122 static irqreturn_t
i40e_intr(int irq
, void *data
)
3124 struct i40e_pf
*pf
= (struct i40e_pf
*)data
;
3125 struct i40e_hw
*hw
= &pf
->hw
;
3126 irqreturn_t ret
= IRQ_NONE
;
3127 u32 icr0
, icr0_remaining
;
3130 icr0
= rd32(hw
, I40E_PFINT_ICR0
);
3131 ena_mask
= rd32(hw
, I40E_PFINT_ICR0_ENA
);
3133 /* if sharing a legacy IRQ, we might get called w/o an intr pending */
3134 if ((icr0
& I40E_PFINT_ICR0_INTEVENT_MASK
) == 0)
3137 /* if interrupt but no bits showing, must be SWINT */
3138 if (((icr0
& ~I40E_PFINT_ICR0_INTEVENT_MASK
) == 0) ||
3139 (icr0
& I40E_PFINT_ICR0_SWINT_MASK
))
3142 /* only q0 is used in MSI/Legacy mode, and none are used in MSIX */
3143 if (icr0
& I40E_PFINT_ICR0_QUEUE_0_MASK
) {
3145 /* temporarily disable queue cause for NAPI processing */
3146 u32 qval
= rd32(hw
, I40E_QINT_RQCTL(0));
3147 qval
&= ~I40E_QINT_RQCTL_CAUSE_ENA_MASK
;
3148 wr32(hw
, I40E_QINT_RQCTL(0), qval
);
3150 qval
= rd32(hw
, I40E_QINT_TQCTL(0));
3151 qval
&= ~I40E_QINT_TQCTL_CAUSE_ENA_MASK
;
3152 wr32(hw
, I40E_QINT_TQCTL(0), qval
);
3154 if (!test_bit(__I40E_DOWN
, &pf
->state
))
3155 napi_schedule(&pf
->vsi
[pf
->lan_vsi
]->q_vectors
[0]->napi
);
3158 if (icr0
& I40E_PFINT_ICR0_ADMINQ_MASK
) {
3159 ena_mask
&= ~I40E_PFINT_ICR0_ENA_ADMINQ_MASK
;
3160 set_bit(__I40E_ADMINQ_EVENT_PENDING
, &pf
->state
);
3163 if (icr0
& I40E_PFINT_ICR0_MAL_DETECT_MASK
) {
3164 ena_mask
&= ~I40E_PFINT_ICR0_ENA_MAL_DETECT_MASK
;
3165 set_bit(__I40E_MDD_EVENT_PENDING
, &pf
->state
);
3168 if (icr0
& I40E_PFINT_ICR0_VFLR_MASK
) {
3169 ena_mask
&= ~I40E_PFINT_ICR0_ENA_VFLR_MASK
;
3170 set_bit(__I40E_VFLR_EVENT_PENDING
, &pf
->state
);
3173 if (icr0
& I40E_PFINT_ICR0_GRST_MASK
) {
3174 if (!test_bit(__I40E_RESET_RECOVERY_PENDING
, &pf
->state
))
3175 set_bit(__I40E_RESET_INTR_RECEIVED
, &pf
->state
);
3176 ena_mask
&= ~I40E_PFINT_ICR0_ENA_GRST_MASK
;
3177 val
= rd32(hw
, I40E_GLGEN_RSTAT
);
3178 val
= (val
& I40E_GLGEN_RSTAT_RESET_TYPE_MASK
)
3179 >> I40E_GLGEN_RSTAT_RESET_TYPE_SHIFT
;
3180 if (val
== I40E_RESET_CORER
) {
3182 } else if (val
== I40E_RESET_GLOBR
) {
3184 } else if (val
== I40E_RESET_EMPR
) {
3186 set_bit(__I40E_EMP_RESET_REQUESTED
, &pf
->state
);
3190 if (icr0
& I40E_PFINT_ICR0_HMC_ERR_MASK
) {
3191 icr0
&= ~I40E_PFINT_ICR0_HMC_ERR_MASK
;
3192 dev_info(&pf
->pdev
->dev
, "HMC error interrupt\n");
3195 if (icr0
& I40E_PFINT_ICR0_TIMESYNC_MASK
) {
3196 u32 prttsyn_stat
= rd32(hw
, I40E_PRTTSYN_STAT_0
);
3198 if (prttsyn_stat
& I40E_PRTTSYN_STAT_0_TXTIME_MASK
) {
3199 icr0
&= ~I40E_PFINT_ICR0_ENA_TIMESYNC_MASK
;
3200 i40e_ptp_tx_hwtstamp(pf
);
3204 /* If a critical error is pending we have no choice but to reset the
3206 * Report and mask out any remaining unexpected interrupts.
3208 icr0_remaining
= icr0
& ena_mask
;
3209 if (icr0_remaining
) {
3210 dev_info(&pf
->pdev
->dev
, "unhandled interrupt icr0=0x%08x\n",
3212 if ((icr0_remaining
& I40E_PFINT_ICR0_PE_CRITERR_MASK
) ||
3213 (icr0_remaining
& I40E_PFINT_ICR0_PCI_EXCEPTION_MASK
) ||
3214 (icr0_remaining
& I40E_PFINT_ICR0_ECC_ERR_MASK
)) {
3215 dev_info(&pf
->pdev
->dev
, "device will be reset\n");
3216 set_bit(__I40E_PF_RESET_REQUESTED
, &pf
->state
);
3217 i40e_service_event_schedule(pf
);
3219 ena_mask
&= ~icr0_remaining
;
3224 /* re-enable interrupt causes */
3225 wr32(hw
, I40E_PFINT_ICR0_ENA
, ena_mask
);
3226 if (!test_bit(__I40E_DOWN
, &pf
->state
)) {
3227 i40e_service_event_schedule(pf
);
3228 i40e_irq_dynamic_enable_icr0(pf
);
3235 * i40e_clean_fdir_tx_irq - Reclaim resources after transmit completes
3236 * @tx_ring: tx ring to clean
3237 * @budget: how many cleans we're allowed
3239 * Returns true if there's any budget left (e.g. the clean is finished)
3241 static bool i40e_clean_fdir_tx_irq(struct i40e_ring
*tx_ring
, int budget
)
3243 struct i40e_vsi
*vsi
= tx_ring
->vsi
;
3244 u16 i
= tx_ring
->next_to_clean
;
3245 struct i40e_tx_buffer
*tx_buf
;
3246 struct i40e_tx_desc
*tx_desc
;
3248 tx_buf
= &tx_ring
->tx_bi
[i
];
3249 tx_desc
= I40E_TX_DESC(tx_ring
, i
);
3250 i
-= tx_ring
->count
;
3253 struct i40e_tx_desc
*eop_desc
= tx_buf
->next_to_watch
;
3255 /* if next_to_watch is not set then there is no work pending */
3259 /* prevent any other reads prior to eop_desc */
3260 read_barrier_depends();
3262 /* if the descriptor isn't done, no work yet to do */
3263 if (!(eop_desc
->cmd_type_offset_bsz
&
3264 cpu_to_le64(I40E_TX_DESC_DTYPE_DESC_DONE
)))
3267 /* clear next_to_watch to prevent false hangs */
3268 tx_buf
->next_to_watch
= NULL
;
3270 tx_desc
->buffer_addr
= 0;
3271 tx_desc
->cmd_type_offset_bsz
= 0;
3272 /* move past filter desc */
3277 i
-= tx_ring
->count
;
3278 tx_buf
= tx_ring
->tx_bi
;
3279 tx_desc
= I40E_TX_DESC(tx_ring
, 0);
3281 /* unmap skb header data */
3282 dma_unmap_single(tx_ring
->dev
,
3283 dma_unmap_addr(tx_buf
, dma
),
3284 dma_unmap_len(tx_buf
, len
),
3286 if (tx_buf
->tx_flags
& I40E_TX_FLAGS_FD_SB
)
3287 kfree(tx_buf
->raw_buf
);
3289 tx_buf
->raw_buf
= NULL
;
3290 tx_buf
->tx_flags
= 0;
3291 tx_buf
->next_to_watch
= NULL
;
3292 dma_unmap_len_set(tx_buf
, len
, 0);
3293 tx_desc
->buffer_addr
= 0;
3294 tx_desc
->cmd_type_offset_bsz
= 0;
3296 /* move us past the eop_desc for start of next FD desc */
3301 i
-= tx_ring
->count
;
3302 tx_buf
= tx_ring
->tx_bi
;
3303 tx_desc
= I40E_TX_DESC(tx_ring
, 0);
3306 /* update budget accounting */
3308 } while (likely(budget
));
3310 i
+= tx_ring
->count
;
3311 tx_ring
->next_to_clean
= i
;
3313 if (vsi
->back
->flags
& I40E_FLAG_MSIX_ENABLED
) {
3314 i40e_irq_dynamic_enable(vsi
,
3315 tx_ring
->q_vector
->v_idx
+ vsi
->base_vector
);
3321 * i40e_fdir_clean_ring - Interrupt Handler for FDIR SB ring
3322 * @irq: interrupt number
3323 * @data: pointer to a q_vector
3325 static irqreturn_t
i40e_fdir_clean_ring(int irq
, void *data
)
3327 struct i40e_q_vector
*q_vector
= data
;
3328 struct i40e_vsi
*vsi
;
3330 if (!q_vector
->tx
.ring
)
3333 vsi
= q_vector
->tx
.ring
->vsi
;
3334 i40e_clean_fdir_tx_irq(q_vector
->tx
.ring
, vsi
->work_limit
);
3340 * i40e_map_vector_to_qp - Assigns the queue pair to the vector
3341 * @vsi: the VSI being configured
3342 * @v_idx: vector index
3343 * @qp_idx: queue pair index
3345 static void map_vector_to_qp(struct i40e_vsi
*vsi
, int v_idx
, int qp_idx
)
3347 struct i40e_q_vector
*q_vector
= vsi
->q_vectors
[v_idx
];
3348 struct i40e_ring
*tx_ring
= vsi
->tx_rings
[qp_idx
];
3349 struct i40e_ring
*rx_ring
= vsi
->rx_rings
[qp_idx
];
3351 tx_ring
->q_vector
= q_vector
;
3352 tx_ring
->next
= q_vector
->tx
.ring
;
3353 q_vector
->tx
.ring
= tx_ring
;
3354 q_vector
->tx
.count
++;
3356 rx_ring
->q_vector
= q_vector
;
3357 rx_ring
->next
= q_vector
->rx
.ring
;
3358 q_vector
->rx
.ring
= rx_ring
;
3359 q_vector
->rx
.count
++;
3363 * i40e_vsi_map_rings_to_vectors - Maps descriptor rings to vectors
3364 * @vsi: the VSI being configured
3366 * This function maps descriptor rings to the queue-specific vectors
3367 * we were allotted through the MSI-X enabling code. Ideally, we'd have
3368 * one vector per queue pair, but on a constrained vector budget, we
3369 * group the queue pairs as "efficiently" as possible.
3371 static void i40e_vsi_map_rings_to_vectors(struct i40e_vsi
*vsi
)
3373 int qp_remaining
= vsi
->num_queue_pairs
;
3374 int q_vectors
= vsi
->num_q_vectors
;
3379 /* If we don't have enough vectors for a 1-to-1 mapping, we'll have to
3380 * group them so there are multiple queues per vector.
3381 * It is also important to go through all the vectors available to be
3382 * sure that if we don't use all the vectors, that the remaining vectors
3383 * are cleared. This is especially important when decreasing the
3384 * number of queues in use.
3386 for (; v_start
< q_vectors
; v_start
++) {
3387 struct i40e_q_vector
*q_vector
= vsi
->q_vectors
[v_start
];
3389 num_ringpairs
= DIV_ROUND_UP(qp_remaining
, q_vectors
- v_start
);
3391 q_vector
->num_ringpairs
= num_ringpairs
;
3393 q_vector
->rx
.count
= 0;
3394 q_vector
->tx
.count
= 0;
3395 q_vector
->rx
.ring
= NULL
;
3396 q_vector
->tx
.ring
= NULL
;
3398 while (num_ringpairs
--) {
3399 map_vector_to_qp(vsi
, v_start
, qp_idx
);
3407 * i40e_vsi_request_irq - Request IRQ from the OS
3408 * @vsi: the VSI being configured
3409 * @basename: name for the vector
3411 static int i40e_vsi_request_irq(struct i40e_vsi
*vsi
, char *basename
)
3413 struct i40e_pf
*pf
= vsi
->back
;
3416 if (pf
->flags
& I40E_FLAG_MSIX_ENABLED
)
3417 err
= i40e_vsi_request_irq_msix(vsi
, basename
);
3418 else if (pf
->flags
& I40E_FLAG_MSI_ENABLED
)
3419 err
= request_irq(pf
->pdev
->irq
, i40e_intr
, 0,
3422 err
= request_irq(pf
->pdev
->irq
, i40e_intr
, IRQF_SHARED
,
3426 dev_info(&pf
->pdev
->dev
, "request_irq failed, Error %d\n", err
);
3431 #ifdef CONFIG_NET_POLL_CONTROLLER
3433 * i40e_netpoll - A Polling 'interrupt'handler
3434 * @netdev: network interface device structure
3436 * This is used by netconsole to send skbs without having to re-enable
3437 * interrupts. It's not called while the normal interrupt routine is executing.
3440 void i40e_netpoll(struct net_device
*netdev
)
3442 static void i40e_netpoll(struct net_device
*netdev
)
3445 struct i40e_netdev_priv
*np
= netdev_priv(netdev
);
3446 struct i40e_vsi
*vsi
= np
->vsi
;
3447 struct i40e_pf
*pf
= vsi
->back
;
3450 /* if interface is down do nothing */
3451 if (test_bit(__I40E_DOWN
, &vsi
->state
))
3454 pf
->flags
|= I40E_FLAG_IN_NETPOLL
;
3455 if (pf
->flags
& I40E_FLAG_MSIX_ENABLED
) {
3456 for (i
= 0; i
< vsi
->num_q_vectors
; i
++)
3457 i40e_msix_clean_rings(0, vsi
->q_vectors
[i
]);
3459 i40e_intr(pf
->pdev
->irq
, netdev
);
3461 pf
->flags
&= ~I40E_FLAG_IN_NETPOLL
;
3466 * i40e_pf_txq_wait - Wait for a PF's Tx queue to be enabled or disabled
3467 * @pf: the PF being configured
3468 * @pf_q: the PF queue
3469 * @enable: enable or disable state of the queue
3471 * This routine will wait for the given Tx queue of the PF to reach the
3472 * enabled or disabled state.
3473 * Returns -ETIMEDOUT in case of failing to reach the requested state after
3474 * multiple retries; else will return 0 in case of success.
3476 static int i40e_pf_txq_wait(struct i40e_pf
*pf
, int pf_q
, bool enable
)
3481 for (i
= 0; i
< I40E_QUEUE_WAIT_RETRY_LIMIT
; i
++) {
3482 tx_reg
= rd32(&pf
->hw
, I40E_QTX_ENA(pf_q
));
3483 if (enable
== !!(tx_reg
& I40E_QTX_ENA_QENA_STAT_MASK
))
3486 usleep_range(10, 20);
3488 if (i
>= I40E_QUEUE_WAIT_RETRY_LIMIT
)
3495 * i40e_vsi_control_tx - Start or stop a VSI's rings
3496 * @vsi: the VSI being configured
3497 * @enable: start or stop the rings
3499 static int i40e_vsi_control_tx(struct i40e_vsi
*vsi
, bool enable
)
3501 struct i40e_pf
*pf
= vsi
->back
;
3502 struct i40e_hw
*hw
= &pf
->hw
;
3503 int i
, j
, pf_q
, ret
= 0;
3506 pf_q
= vsi
->base_queue
;
3507 for (i
= 0; i
< vsi
->num_queue_pairs
; i
++, pf_q
++) {
3509 /* warn the TX unit of coming changes */
3510 i40e_pre_tx_queue_cfg(&pf
->hw
, pf_q
, enable
);
3512 usleep_range(10, 20);
3514 for (j
= 0; j
< 50; j
++) {
3515 tx_reg
= rd32(hw
, I40E_QTX_ENA(pf_q
));
3516 if (((tx_reg
>> I40E_QTX_ENA_QENA_REQ_SHIFT
) & 1) ==
3517 ((tx_reg
>> I40E_QTX_ENA_QENA_STAT_SHIFT
) & 1))
3519 usleep_range(1000, 2000);
3521 /* Skip if the queue is already in the requested state */
3522 if (enable
== !!(tx_reg
& I40E_QTX_ENA_QENA_STAT_MASK
))
3525 /* turn on/off the queue */
3527 wr32(hw
, I40E_QTX_HEAD(pf_q
), 0);
3528 tx_reg
|= I40E_QTX_ENA_QENA_REQ_MASK
;
3530 tx_reg
&= ~I40E_QTX_ENA_QENA_REQ_MASK
;
3533 wr32(hw
, I40E_QTX_ENA(pf_q
), tx_reg
);
3534 /* No waiting for the Tx queue to disable */
3535 if (!enable
&& test_bit(__I40E_PORT_TX_SUSPENDED
, &pf
->state
))
3538 /* wait for the change to finish */
3539 ret
= i40e_pf_txq_wait(pf
, pf_q
, enable
);
3541 dev_info(&pf
->pdev
->dev
,
3542 "%s: VSI seid %d Tx ring %d %sable timeout\n",
3543 __func__
, vsi
->seid
, pf_q
,
3544 (enable
? "en" : "dis"));
3549 if (hw
->revision_id
== 0)
3555 * i40e_pf_rxq_wait - Wait for a PF's Rx queue to be enabled or disabled
3556 * @pf: the PF being configured
3557 * @pf_q: the PF queue
3558 * @enable: enable or disable state of the queue
3560 * This routine will wait for the given Rx queue of the PF to reach the
3561 * enabled or disabled state.
3562 * Returns -ETIMEDOUT in case of failing to reach the requested state after
3563 * multiple retries; else will return 0 in case of success.
3565 static int i40e_pf_rxq_wait(struct i40e_pf
*pf
, int pf_q
, bool enable
)
3570 for (i
= 0; i
< I40E_QUEUE_WAIT_RETRY_LIMIT
; i
++) {
3571 rx_reg
= rd32(&pf
->hw
, I40E_QRX_ENA(pf_q
));
3572 if (enable
== !!(rx_reg
& I40E_QRX_ENA_QENA_STAT_MASK
))
3575 usleep_range(10, 20);
3577 if (i
>= I40E_QUEUE_WAIT_RETRY_LIMIT
)
3584 * i40e_vsi_control_rx - Start or stop a VSI's rings
3585 * @vsi: the VSI being configured
3586 * @enable: start or stop the rings
3588 static int i40e_vsi_control_rx(struct i40e_vsi
*vsi
, bool enable
)
3590 struct i40e_pf
*pf
= vsi
->back
;
3591 struct i40e_hw
*hw
= &pf
->hw
;
3592 int i
, j
, pf_q
, ret
= 0;
3595 pf_q
= vsi
->base_queue
;
3596 for (i
= 0; i
< vsi
->num_queue_pairs
; i
++, pf_q
++) {
3597 for (j
= 0; j
< 50; j
++) {
3598 rx_reg
= rd32(hw
, I40E_QRX_ENA(pf_q
));
3599 if (((rx_reg
>> I40E_QRX_ENA_QENA_REQ_SHIFT
) & 1) ==
3600 ((rx_reg
>> I40E_QRX_ENA_QENA_STAT_SHIFT
) & 1))
3602 usleep_range(1000, 2000);
3605 /* Skip if the queue is already in the requested state */
3606 if (enable
== !!(rx_reg
& I40E_QRX_ENA_QENA_STAT_MASK
))
3609 /* turn on/off the queue */
3611 rx_reg
|= I40E_QRX_ENA_QENA_REQ_MASK
;
3613 rx_reg
&= ~I40E_QRX_ENA_QENA_REQ_MASK
;
3614 wr32(hw
, I40E_QRX_ENA(pf_q
), rx_reg
);
3616 /* wait for the change to finish */
3617 ret
= i40e_pf_rxq_wait(pf
, pf_q
, enable
);
3619 dev_info(&pf
->pdev
->dev
,
3620 "%s: VSI seid %d Rx ring %d %sable timeout\n",
3621 __func__
, vsi
->seid
, pf_q
,
3622 (enable
? "en" : "dis"));
3631 * i40e_vsi_control_rings - Start or stop a VSI's rings
3632 * @vsi: the VSI being configured
3633 * @enable: start or stop the rings
3635 int i40e_vsi_control_rings(struct i40e_vsi
*vsi
, bool request
)
3639 /* do rx first for enable and last for disable */
3641 ret
= i40e_vsi_control_rx(vsi
, request
);
3644 ret
= i40e_vsi_control_tx(vsi
, request
);
3646 /* Ignore return value, we need to shutdown whatever we can */
3647 i40e_vsi_control_tx(vsi
, request
);
3648 i40e_vsi_control_rx(vsi
, request
);
3655 * i40e_vsi_free_irq - Free the irq association with the OS
3656 * @vsi: the VSI being configured
3658 static void i40e_vsi_free_irq(struct i40e_vsi
*vsi
)
3660 struct i40e_pf
*pf
= vsi
->back
;
3661 struct i40e_hw
*hw
= &pf
->hw
;
3662 int base
= vsi
->base_vector
;
3666 if (pf
->flags
& I40E_FLAG_MSIX_ENABLED
) {
3667 if (!vsi
->q_vectors
)
3670 if (!vsi
->irqs_ready
)
3673 vsi
->irqs_ready
= false;
3674 for (i
= 0; i
< vsi
->num_q_vectors
; i
++) {
3675 u16 vector
= i
+ base
;
3677 /* free only the irqs that were actually requested */
3678 if (!vsi
->q_vectors
[i
] ||
3679 !vsi
->q_vectors
[i
]->num_ringpairs
)
3682 /* clear the affinity_mask in the IRQ descriptor */
3683 irq_set_affinity_hint(pf
->msix_entries
[vector
].vector
,
3685 free_irq(pf
->msix_entries
[vector
].vector
,
3688 /* Tear down the interrupt queue link list
3690 * We know that they come in pairs and always
3691 * the Rx first, then the Tx. To clear the
3692 * link list, stick the EOL value into the
3693 * next_q field of the registers.
3695 val
= rd32(hw
, I40E_PFINT_LNKLSTN(vector
- 1));
3696 qp
= (val
& I40E_PFINT_LNKLSTN_FIRSTQ_INDX_MASK
)
3697 >> I40E_PFINT_LNKLSTN_FIRSTQ_INDX_SHIFT
;
3698 val
|= I40E_QUEUE_END_OF_LIST
3699 << I40E_PFINT_LNKLSTN_FIRSTQ_INDX_SHIFT
;
3700 wr32(hw
, I40E_PFINT_LNKLSTN(vector
- 1), val
);
3702 while (qp
!= I40E_QUEUE_END_OF_LIST
) {
3705 val
= rd32(hw
, I40E_QINT_RQCTL(qp
));
3707 val
&= ~(I40E_QINT_RQCTL_MSIX_INDX_MASK
|
3708 I40E_QINT_RQCTL_MSIX0_INDX_MASK
|
3709 I40E_QINT_RQCTL_CAUSE_ENA_MASK
|
3710 I40E_QINT_RQCTL_INTEVENT_MASK
);
3712 val
|= (I40E_QINT_RQCTL_ITR_INDX_MASK
|
3713 I40E_QINT_RQCTL_NEXTQ_INDX_MASK
);
3715 wr32(hw
, I40E_QINT_RQCTL(qp
), val
);
3717 val
= rd32(hw
, I40E_QINT_TQCTL(qp
));
3719 next
= (val
& I40E_QINT_TQCTL_NEXTQ_INDX_MASK
)
3720 >> I40E_QINT_TQCTL_NEXTQ_INDX_SHIFT
;
3722 val
&= ~(I40E_QINT_TQCTL_MSIX_INDX_MASK
|
3723 I40E_QINT_TQCTL_MSIX0_INDX_MASK
|
3724 I40E_QINT_TQCTL_CAUSE_ENA_MASK
|
3725 I40E_QINT_TQCTL_INTEVENT_MASK
);
3727 val
|= (I40E_QINT_TQCTL_ITR_INDX_MASK
|
3728 I40E_QINT_TQCTL_NEXTQ_INDX_MASK
);
3730 wr32(hw
, I40E_QINT_TQCTL(qp
), val
);
3735 free_irq(pf
->pdev
->irq
, pf
);
3737 val
= rd32(hw
, I40E_PFINT_LNKLST0
);
3738 qp
= (val
& I40E_PFINT_LNKLSTN_FIRSTQ_INDX_MASK
)
3739 >> I40E_PFINT_LNKLSTN_FIRSTQ_INDX_SHIFT
;
3740 val
|= I40E_QUEUE_END_OF_LIST
3741 << I40E_PFINT_LNKLST0_FIRSTQ_INDX_SHIFT
;
3742 wr32(hw
, I40E_PFINT_LNKLST0
, val
);
3744 val
= rd32(hw
, I40E_QINT_RQCTL(qp
));
3745 val
&= ~(I40E_QINT_RQCTL_MSIX_INDX_MASK
|
3746 I40E_QINT_RQCTL_MSIX0_INDX_MASK
|
3747 I40E_QINT_RQCTL_CAUSE_ENA_MASK
|
3748 I40E_QINT_RQCTL_INTEVENT_MASK
);
3750 val
|= (I40E_QINT_RQCTL_ITR_INDX_MASK
|
3751 I40E_QINT_RQCTL_NEXTQ_INDX_MASK
);
3753 wr32(hw
, I40E_QINT_RQCTL(qp
), val
);
3755 val
= rd32(hw
, I40E_QINT_TQCTL(qp
));
3757 val
&= ~(I40E_QINT_TQCTL_MSIX_INDX_MASK
|
3758 I40E_QINT_TQCTL_MSIX0_INDX_MASK
|
3759 I40E_QINT_TQCTL_CAUSE_ENA_MASK
|
3760 I40E_QINT_TQCTL_INTEVENT_MASK
);
3762 val
|= (I40E_QINT_TQCTL_ITR_INDX_MASK
|
3763 I40E_QINT_TQCTL_NEXTQ_INDX_MASK
);
3765 wr32(hw
, I40E_QINT_TQCTL(qp
), val
);
3770 * i40e_free_q_vector - Free memory allocated for specific interrupt vector
3771 * @vsi: the VSI being configured
3772 * @v_idx: Index of vector to be freed
3774 * This function frees the memory allocated to the q_vector. In addition if
3775 * NAPI is enabled it will delete any references to the NAPI struct prior
3776 * to freeing the q_vector.
3778 static void i40e_free_q_vector(struct i40e_vsi
*vsi
, int v_idx
)
3780 struct i40e_q_vector
*q_vector
= vsi
->q_vectors
[v_idx
];
3781 struct i40e_ring
*ring
;
3786 /* disassociate q_vector from rings */
3787 i40e_for_each_ring(ring
, q_vector
->tx
)
3788 ring
->q_vector
= NULL
;
3790 i40e_for_each_ring(ring
, q_vector
->rx
)
3791 ring
->q_vector
= NULL
;
3793 /* only VSI w/ an associated netdev is set up w/ NAPI */
3795 netif_napi_del(&q_vector
->napi
);
3797 vsi
->q_vectors
[v_idx
] = NULL
;
3799 kfree_rcu(q_vector
, rcu
);
3803 * i40e_vsi_free_q_vectors - Free memory allocated for interrupt vectors
3804 * @vsi: the VSI being un-configured
3806 * This frees the memory allocated to the q_vectors and
3807 * deletes references to the NAPI struct.
3809 static void i40e_vsi_free_q_vectors(struct i40e_vsi
*vsi
)
3813 for (v_idx
= 0; v_idx
< vsi
->num_q_vectors
; v_idx
++)
3814 i40e_free_q_vector(vsi
, v_idx
);
3818 * i40e_reset_interrupt_capability - Disable interrupt setup in OS
3819 * @pf: board private structure
3821 static void i40e_reset_interrupt_capability(struct i40e_pf
*pf
)
3823 /* If we're in Legacy mode, the interrupt was cleaned in vsi_close */
3824 if (pf
->flags
& I40E_FLAG_MSIX_ENABLED
) {
3825 pci_disable_msix(pf
->pdev
);
3826 kfree(pf
->msix_entries
);
3827 pf
->msix_entries
= NULL
;
3828 } else if (pf
->flags
& I40E_FLAG_MSI_ENABLED
) {
3829 pci_disable_msi(pf
->pdev
);
3831 pf
->flags
&= ~(I40E_FLAG_MSIX_ENABLED
| I40E_FLAG_MSI_ENABLED
);
3835 * i40e_clear_interrupt_scheme - Clear the current interrupt scheme settings
3836 * @pf: board private structure
3838 * We go through and clear interrupt specific resources and reset the structure
3839 * to pre-load conditions
3841 static void i40e_clear_interrupt_scheme(struct i40e_pf
*pf
)
3845 i40e_stop_misc_vector(pf
);
3846 if (pf
->flags
& I40E_FLAG_MSIX_ENABLED
) {
3847 synchronize_irq(pf
->msix_entries
[0].vector
);
3848 free_irq(pf
->msix_entries
[0].vector
, pf
);
3851 i40e_put_lump(pf
->irq_pile
, 0, I40E_PILE_VALID_BIT
-1);
3852 for (i
= 0; i
< pf
->num_alloc_vsi
; i
++)
3854 i40e_vsi_free_q_vectors(pf
->vsi
[i
]);
3855 i40e_reset_interrupt_capability(pf
);
3859 * i40e_napi_enable_all - Enable NAPI for all q_vectors in the VSI
3860 * @vsi: the VSI being configured
3862 static void i40e_napi_enable_all(struct i40e_vsi
*vsi
)
3869 for (q_idx
= 0; q_idx
< vsi
->num_q_vectors
; q_idx
++)
3870 napi_enable(&vsi
->q_vectors
[q_idx
]->napi
);
3874 * i40e_napi_disable_all - Disable NAPI for all q_vectors in the VSI
3875 * @vsi: the VSI being configured
3877 static void i40e_napi_disable_all(struct i40e_vsi
*vsi
)
3884 for (q_idx
= 0; q_idx
< vsi
->num_q_vectors
; q_idx
++)
3885 napi_disable(&vsi
->q_vectors
[q_idx
]->napi
);
3889 * i40e_vsi_close - Shut down a VSI
3890 * @vsi: the vsi to be quelled
3892 static void i40e_vsi_close(struct i40e_vsi
*vsi
)
3894 if (!test_and_set_bit(__I40E_DOWN
, &vsi
->state
))
3896 i40e_vsi_free_irq(vsi
);
3897 i40e_vsi_free_tx_resources(vsi
);
3898 i40e_vsi_free_rx_resources(vsi
);
3902 * i40e_quiesce_vsi - Pause a given VSI
3903 * @vsi: the VSI being paused
3905 static void i40e_quiesce_vsi(struct i40e_vsi
*vsi
)
3907 if (test_bit(__I40E_DOWN
, &vsi
->state
))
3910 /* No need to disable FCoE VSI when Tx suspended */
3911 if ((test_bit(__I40E_PORT_TX_SUSPENDED
, &vsi
->back
->state
)) &&
3912 vsi
->type
== I40E_VSI_FCOE
) {
3913 dev_dbg(&vsi
->back
->pdev
->dev
,
3914 "%s: VSI seid %d skipping FCoE VSI disable\n",
3915 __func__
, vsi
->seid
);
3919 set_bit(__I40E_NEEDS_RESTART
, &vsi
->state
);
3920 if (vsi
->netdev
&& netif_running(vsi
->netdev
)) {
3921 vsi
->netdev
->netdev_ops
->ndo_stop(vsi
->netdev
);
3923 i40e_vsi_close(vsi
);
3928 * i40e_unquiesce_vsi - Resume a given VSI
3929 * @vsi: the VSI being resumed
3931 static void i40e_unquiesce_vsi(struct i40e_vsi
*vsi
)
3933 if (!test_bit(__I40E_NEEDS_RESTART
, &vsi
->state
))
3936 clear_bit(__I40E_NEEDS_RESTART
, &vsi
->state
);
3937 if (vsi
->netdev
&& netif_running(vsi
->netdev
))
3938 vsi
->netdev
->netdev_ops
->ndo_open(vsi
->netdev
);
3940 i40e_vsi_open(vsi
); /* this clears the DOWN bit */
3944 * i40e_pf_quiesce_all_vsi - Pause all VSIs on a PF
3947 static void i40e_pf_quiesce_all_vsi(struct i40e_pf
*pf
)
3951 for (v
= 0; v
< pf
->num_alloc_vsi
; v
++) {
3953 i40e_quiesce_vsi(pf
->vsi
[v
]);
3958 * i40e_pf_unquiesce_all_vsi - Resume all VSIs on a PF
3961 static void i40e_pf_unquiesce_all_vsi(struct i40e_pf
*pf
)
3965 for (v
= 0; v
< pf
->num_alloc_vsi
; v
++) {
3967 i40e_unquiesce_vsi(pf
->vsi
[v
]);
3971 #ifdef CONFIG_I40E_DCB
3973 * i40e_vsi_wait_txq_disabled - Wait for VSI's queues to be disabled
3974 * @vsi: the VSI being configured
3976 * This function waits for the given VSI's Tx queues to be disabled.
3978 static int i40e_vsi_wait_txq_disabled(struct i40e_vsi
*vsi
)
3980 struct i40e_pf
*pf
= vsi
->back
;
3983 pf_q
= vsi
->base_queue
;
3984 for (i
= 0; i
< vsi
->num_queue_pairs
; i
++, pf_q
++) {
3985 /* Check and wait for the disable status of the queue */
3986 ret
= i40e_pf_txq_wait(pf
, pf_q
, false);
3988 dev_info(&pf
->pdev
->dev
,
3989 "%s: VSI seid %d Tx ring %d disable timeout\n",
3990 __func__
, vsi
->seid
, pf_q
);
3999 * i40e_pf_wait_txq_disabled - Wait for all queues of PF VSIs to be disabled
4002 * This function waits for the Tx queues to be in disabled state for all the
4003 * VSIs that are managed by this PF.
4005 static int i40e_pf_wait_txq_disabled(struct i40e_pf
*pf
)
4009 for (v
= 0; v
< pf
->hw
.func_caps
.num_vsis
; v
++) {
4010 /* No need to wait for FCoE VSI queues */
4011 if (pf
->vsi
[v
] && pf
->vsi
[v
]->type
!= I40E_VSI_FCOE
) {
4012 ret
= i40e_vsi_wait_txq_disabled(pf
->vsi
[v
]);
4023 * i40e_get_iscsi_tc_map - Return TC map for iSCSI APP
4024 * @pf: pointer to pf
4026 * Get TC map for ISCSI PF type that will include iSCSI TC
4029 static u8
i40e_get_iscsi_tc_map(struct i40e_pf
*pf
)
4031 struct i40e_dcb_app_priority_table app
;
4032 struct i40e_hw
*hw
= &pf
->hw
;
4033 u8 enabled_tc
= 1; /* TC0 is always enabled */
4035 /* Get the iSCSI APP TLV */
4036 struct i40e_dcbx_config
*dcbcfg
= &hw
->local_dcbx_config
;
4038 for (i
= 0; i
< dcbcfg
->numapps
; i
++) {
4039 app
= dcbcfg
->app
[i
];
4040 if (app
.selector
== I40E_APP_SEL_TCPIP
&&
4041 app
.protocolid
== I40E_APP_PROTOID_ISCSI
) {
4042 tc
= dcbcfg
->etscfg
.prioritytable
[app
.priority
];
4043 enabled_tc
|= (1 << tc
);
4052 * i40e_dcb_get_num_tc - Get the number of TCs from DCBx config
4053 * @dcbcfg: the corresponding DCBx configuration structure
4055 * Return the number of TCs from given DCBx configuration
4057 static u8
i40e_dcb_get_num_tc(struct i40e_dcbx_config
*dcbcfg
)
4062 /* Scan the ETS Config Priority Table to find
4063 * traffic class enabled for a given priority
4064 * and use the traffic class index to get the
4065 * number of traffic classes enabled
4067 for (i
= 0; i
< I40E_MAX_USER_PRIORITY
; i
++) {
4068 if (dcbcfg
->etscfg
.prioritytable
[i
] > num_tc
)
4069 num_tc
= dcbcfg
->etscfg
.prioritytable
[i
];
4072 /* Traffic class index starts from zero so
4073 * increment to return the actual count
4079 * i40e_dcb_get_enabled_tc - Get enabled traffic classes
4080 * @dcbcfg: the corresponding DCBx configuration structure
4082 * Query the current DCB configuration and return the number of
4083 * traffic classes enabled from the given DCBX config
4085 static u8
i40e_dcb_get_enabled_tc(struct i40e_dcbx_config
*dcbcfg
)
4087 u8 num_tc
= i40e_dcb_get_num_tc(dcbcfg
);
4091 for (i
= 0; i
< num_tc
; i
++)
4092 enabled_tc
|= 1 << i
;
4098 * i40e_pf_get_num_tc - Get enabled traffic classes for PF
4099 * @pf: PF being queried
4101 * Return number of traffic classes enabled for the given PF
4103 static u8
i40e_pf_get_num_tc(struct i40e_pf
*pf
)
4105 struct i40e_hw
*hw
= &pf
->hw
;
4108 struct i40e_dcbx_config
*dcbcfg
= &hw
->local_dcbx_config
;
4110 /* If DCB is not enabled then always in single TC */
4111 if (!(pf
->flags
& I40E_FLAG_DCB_ENABLED
))
4114 /* SFP mode will be enabled for all TCs on port */
4115 if (!(pf
->flags
& I40E_FLAG_MFP_ENABLED
))
4116 return i40e_dcb_get_num_tc(dcbcfg
);
4118 /* MFP mode return count of enabled TCs for this PF */
4119 if (pf
->hw
.func_caps
.iscsi
)
4120 enabled_tc
= i40e_get_iscsi_tc_map(pf
);
4122 enabled_tc
= pf
->hw
.func_caps
.enabled_tcmap
;
4124 /* At least have TC0 */
4125 enabled_tc
= (enabled_tc
? enabled_tc
: 0x1);
4126 for (i
= 0; i
< I40E_MAX_TRAFFIC_CLASS
; i
++) {
4127 if (enabled_tc
& (1 << i
))
4134 * i40e_pf_get_default_tc - Get bitmap for first enabled TC
4135 * @pf: PF being queried
4137 * Return a bitmap for first enabled traffic class for this PF.
4139 static u8
i40e_pf_get_default_tc(struct i40e_pf
*pf
)
4141 u8 enabled_tc
= pf
->hw
.func_caps
.enabled_tcmap
;
4145 return 0x1; /* TC0 */
4147 /* Find the first enabled TC */
4148 for (i
= 0; i
< I40E_MAX_TRAFFIC_CLASS
; i
++) {
4149 if (enabled_tc
& (1 << i
))
4157 * i40e_pf_get_pf_tc_map - Get bitmap for enabled traffic classes
4158 * @pf: PF being queried
4160 * Return a bitmap for enabled traffic classes for this PF.
4162 static u8
i40e_pf_get_tc_map(struct i40e_pf
*pf
)
4164 /* If DCB is not enabled for this PF then just return default TC */
4165 if (!(pf
->flags
& I40E_FLAG_DCB_ENABLED
))
4166 return i40e_pf_get_default_tc(pf
);
4168 /* SFP mode we want PF to be enabled for all TCs */
4169 if (!(pf
->flags
& I40E_FLAG_MFP_ENABLED
))
4170 return i40e_dcb_get_enabled_tc(&pf
->hw
.local_dcbx_config
);
4172 /* MPF enabled and iSCSI PF type */
4173 if (pf
->hw
.func_caps
.iscsi
)
4174 return i40e_get_iscsi_tc_map(pf
);
4176 return pf
->hw
.func_caps
.enabled_tcmap
;
4180 * i40e_vsi_get_bw_info - Query VSI BW Information
4181 * @vsi: the VSI being queried
4183 * Returns 0 on success, negative value on failure
4185 static int i40e_vsi_get_bw_info(struct i40e_vsi
*vsi
)
4187 struct i40e_aqc_query_vsi_ets_sla_config_resp bw_ets_config
= {0};
4188 struct i40e_aqc_query_vsi_bw_config_resp bw_config
= {0};
4189 struct i40e_pf
*pf
= vsi
->back
;
4190 struct i40e_hw
*hw
= &pf
->hw
;
4195 /* Get the VSI level BW configuration */
4196 aq_ret
= i40e_aq_query_vsi_bw_config(hw
, vsi
->seid
, &bw_config
, NULL
);
4198 dev_info(&pf
->pdev
->dev
,
4199 "couldn't get pf vsi bw config, err %d, aq_err %d\n",
4200 aq_ret
, pf
->hw
.aq
.asq_last_status
);
4204 /* Get the VSI level BW configuration per TC */
4205 aq_ret
= i40e_aq_query_vsi_ets_sla_config(hw
, vsi
->seid
, &bw_ets_config
,
4208 dev_info(&pf
->pdev
->dev
,
4209 "couldn't get pf vsi ets bw config, err %d, aq_err %d\n",
4210 aq_ret
, pf
->hw
.aq
.asq_last_status
);
4214 if (bw_config
.tc_valid_bits
!= bw_ets_config
.tc_valid_bits
) {
4215 dev_info(&pf
->pdev
->dev
,
4216 "Enabled TCs mismatch from querying VSI BW info 0x%08x 0x%08x\n",
4217 bw_config
.tc_valid_bits
,
4218 bw_ets_config
.tc_valid_bits
);
4219 /* Still continuing */
4222 vsi
->bw_limit
= le16_to_cpu(bw_config
.port_bw_limit
);
4223 vsi
->bw_max_quanta
= bw_config
.max_bw
;
4224 tc_bw_max
= le16_to_cpu(bw_ets_config
.tc_bw_max
[0]) |
4225 (le16_to_cpu(bw_ets_config
.tc_bw_max
[1]) << 16);
4226 for (i
= 0; i
< I40E_MAX_TRAFFIC_CLASS
; i
++) {
4227 vsi
->bw_ets_share_credits
[i
] = bw_ets_config
.share_credits
[i
];
4228 vsi
->bw_ets_limit_credits
[i
] =
4229 le16_to_cpu(bw_ets_config
.credits
[i
]);
4230 /* 3 bits out of 4 for each TC */
4231 vsi
->bw_ets_max_quanta
[i
] = (u8
)((tc_bw_max
>> (i
*4)) & 0x7);
4238 * i40e_vsi_configure_bw_alloc - Configure VSI BW allocation per TC
4239 * @vsi: the VSI being configured
4240 * @enabled_tc: TC bitmap
4241 * @bw_credits: BW shared credits per TC
4243 * Returns 0 on success, negative value on failure
4245 static int i40e_vsi_configure_bw_alloc(struct i40e_vsi
*vsi
, u8 enabled_tc
,
4248 struct i40e_aqc_configure_vsi_tc_bw_data bw_data
;
4252 bw_data
.tc_valid_bits
= enabled_tc
;
4253 for (i
= 0; i
< I40E_MAX_TRAFFIC_CLASS
; i
++)
4254 bw_data
.tc_bw_credits
[i
] = bw_share
[i
];
4256 aq_ret
= i40e_aq_config_vsi_tc_bw(&vsi
->back
->hw
, vsi
->seid
, &bw_data
,
4259 dev_info(&vsi
->back
->pdev
->dev
,
4260 "AQ command Config VSI BW allocation per TC failed = %d\n",
4261 vsi
->back
->hw
.aq
.asq_last_status
);
4265 for (i
= 0; i
< I40E_MAX_TRAFFIC_CLASS
; i
++)
4266 vsi
->info
.qs_handle
[i
] = bw_data
.qs_handles
[i
];
4272 * i40e_vsi_config_netdev_tc - Setup the netdev TC configuration
4273 * @vsi: the VSI being configured
4274 * @enabled_tc: TC map to be enabled
4277 static void i40e_vsi_config_netdev_tc(struct i40e_vsi
*vsi
, u8 enabled_tc
)
4279 struct net_device
*netdev
= vsi
->netdev
;
4280 struct i40e_pf
*pf
= vsi
->back
;
4281 struct i40e_hw
*hw
= &pf
->hw
;
4284 struct i40e_dcbx_config
*dcbcfg
= &hw
->local_dcbx_config
;
4290 netdev_reset_tc(netdev
);
4294 /* Set up actual enabled TCs on the VSI */
4295 if (netdev_set_num_tc(netdev
, vsi
->tc_config
.numtc
))
4298 /* set per TC queues for the VSI */
4299 for (i
= 0; i
< I40E_MAX_TRAFFIC_CLASS
; i
++) {
4300 /* Only set TC queues for enabled tcs
4302 * e.g. For a VSI that has TC0 and TC3 enabled the
4303 * enabled_tc bitmap would be 0x00001001; the driver
4304 * will set the numtc for netdev as 2 that will be
4305 * referenced by the netdev layer as TC 0 and 1.
4307 if (vsi
->tc_config
.enabled_tc
& (1 << i
))
4308 netdev_set_tc_queue(netdev
,
4309 vsi
->tc_config
.tc_info
[i
].netdev_tc
,
4310 vsi
->tc_config
.tc_info
[i
].qcount
,
4311 vsi
->tc_config
.tc_info
[i
].qoffset
);
4314 /* Assign UP2TC map for the VSI */
4315 for (i
= 0; i
< I40E_MAX_USER_PRIORITY
; i
++) {
4316 /* Get the actual TC# for the UP */
4317 u8 ets_tc
= dcbcfg
->etscfg
.prioritytable
[i
];
4318 /* Get the mapped netdev TC# for the UP */
4319 netdev_tc
= vsi
->tc_config
.tc_info
[ets_tc
].netdev_tc
;
4320 netdev_set_prio_tc_map(netdev
, i
, netdev_tc
);
4325 * i40e_vsi_update_queue_map - Update our copy of VSi info with new queue map
4326 * @vsi: the VSI being configured
4327 * @ctxt: the ctxt buffer returned from AQ VSI update param command
4329 static void i40e_vsi_update_queue_map(struct i40e_vsi
*vsi
,
4330 struct i40e_vsi_context
*ctxt
)
4332 /* copy just the sections touched not the entire info
4333 * since not all sections are valid as returned by
4336 vsi
->info
.mapping_flags
= ctxt
->info
.mapping_flags
;
4337 memcpy(&vsi
->info
.queue_mapping
,
4338 &ctxt
->info
.queue_mapping
, sizeof(vsi
->info
.queue_mapping
));
4339 memcpy(&vsi
->info
.tc_mapping
, ctxt
->info
.tc_mapping
,
4340 sizeof(vsi
->info
.tc_mapping
));
4344 * i40e_vsi_config_tc - Configure VSI Tx Scheduler for given TC map
4345 * @vsi: VSI to be configured
4346 * @enabled_tc: TC bitmap
4348 * This configures a particular VSI for TCs that are mapped to the
4349 * given TC bitmap. It uses default bandwidth share for TCs across
4350 * VSIs to configure TC for a particular VSI.
4353 * It is expected that the VSI queues have been quisced before calling
4356 static int i40e_vsi_config_tc(struct i40e_vsi
*vsi
, u8 enabled_tc
)
4358 u8 bw_share
[I40E_MAX_TRAFFIC_CLASS
] = {0};
4359 struct i40e_vsi_context ctxt
;
4363 /* Check if enabled_tc is same as existing or new TCs */
4364 if (vsi
->tc_config
.enabled_tc
== enabled_tc
)
4367 /* Enable ETS TCs with equal BW Share for now across all VSIs */
4368 for (i
= 0; i
< I40E_MAX_TRAFFIC_CLASS
; i
++) {
4369 if (enabled_tc
& (1 << i
))
4373 ret
= i40e_vsi_configure_bw_alloc(vsi
, enabled_tc
, bw_share
);
4375 dev_info(&vsi
->back
->pdev
->dev
,
4376 "Failed configuring TC map %d for VSI %d\n",
4377 enabled_tc
, vsi
->seid
);
4381 /* Update Queue Pairs Mapping for currently enabled UPs */
4382 ctxt
.seid
= vsi
->seid
;
4383 ctxt
.pf_num
= vsi
->back
->hw
.pf_id
;
4385 ctxt
.uplink_seid
= vsi
->uplink_seid
;
4386 memcpy(&ctxt
.info
, &vsi
->info
, sizeof(vsi
->info
));
4387 i40e_vsi_setup_queue_map(vsi
, &ctxt
, enabled_tc
, false);
4389 /* Update the VSI after updating the VSI queue-mapping information */
4390 ret
= i40e_aq_update_vsi_params(&vsi
->back
->hw
, &ctxt
, NULL
);
4392 dev_info(&vsi
->back
->pdev
->dev
,
4393 "update vsi failed, aq_err=%d\n",
4394 vsi
->back
->hw
.aq
.asq_last_status
);
4397 /* update the local VSI info with updated queue map */
4398 i40e_vsi_update_queue_map(vsi
, &ctxt
);
4399 vsi
->info
.valid_sections
= 0;
4401 /* Update current VSI BW information */
4402 ret
= i40e_vsi_get_bw_info(vsi
);
4404 dev_info(&vsi
->back
->pdev
->dev
,
4405 "Failed updating vsi bw info, aq_err=%d\n",
4406 vsi
->back
->hw
.aq
.asq_last_status
);
4410 /* Update the netdev TC setup */
4411 i40e_vsi_config_netdev_tc(vsi
, enabled_tc
);
4417 * i40e_veb_config_tc - Configure TCs for given VEB
4419 * @enabled_tc: TC bitmap
4421 * Configures given TC bitmap for VEB (switching) element
4423 int i40e_veb_config_tc(struct i40e_veb
*veb
, u8 enabled_tc
)
4425 struct i40e_aqc_configure_switching_comp_bw_config_data bw_data
= {0};
4426 struct i40e_pf
*pf
= veb
->pf
;
4430 /* No TCs or already enabled TCs just return */
4431 if (!enabled_tc
|| veb
->enabled_tc
== enabled_tc
)
4434 bw_data
.tc_valid_bits
= enabled_tc
;
4435 /* bw_data.absolute_credits is not set (relative) */
4437 /* Enable ETS TCs with equal BW Share for now */
4438 for (i
= 0; i
< I40E_MAX_TRAFFIC_CLASS
; i
++) {
4439 if (enabled_tc
& (1 << i
))
4440 bw_data
.tc_bw_share_credits
[i
] = 1;
4443 ret
= i40e_aq_config_switch_comp_bw_config(&pf
->hw
, veb
->seid
,
4446 dev_info(&pf
->pdev
->dev
,
4447 "veb bw config failed, aq_err=%d\n",
4448 pf
->hw
.aq
.asq_last_status
);
4452 /* Update the BW information */
4453 ret
= i40e_veb_get_bw_info(veb
);
4455 dev_info(&pf
->pdev
->dev
,
4456 "Failed getting veb bw config, aq_err=%d\n",
4457 pf
->hw
.aq
.asq_last_status
);
4464 #ifdef CONFIG_I40E_DCB
4466 * i40e_dcb_reconfigure - Reconfigure all VEBs and VSIs
4469 * Reconfigure VEB/VSIs on a given PF; it is assumed that
4470 * the caller would've quiesce all the VSIs before calling
4473 static void i40e_dcb_reconfigure(struct i40e_pf
*pf
)
4479 /* Enable the TCs available on PF to all VEBs */
4480 tc_map
= i40e_pf_get_tc_map(pf
);
4481 for (v
= 0; v
< I40E_MAX_VEB
; v
++) {
4484 ret
= i40e_veb_config_tc(pf
->veb
[v
], tc_map
);
4486 dev_info(&pf
->pdev
->dev
,
4487 "Failed configuring TC for VEB seid=%d\n",
4489 /* Will try to configure as many components */
4493 /* Update each VSI */
4494 for (v
= 0; v
< pf
->num_alloc_vsi
; v
++) {
4498 /* - Enable all TCs for the LAN VSI
4500 * - For FCoE VSI only enable the TC configured
4501 * as per the APP TLV
4503 * - For all others keep them at TC0 for now
4505 if (v
== pf
->lan_vsi
)
4506 tc_map
= i40e_pf_get_tc_map(pf
);
4508 tc_map
= i40e_pf_get_default_tc(pf
);
4510 if (pf
->vsi
[v
]->type
== I40E_VSI_FCOE
)
4511 tc_map
= i40e_get_fcoe_tc_map(pf
);
4512 #endif /* #ifdef I40E_FCOE */
4514 ret
= i40e_vsi_config_tc(pf
->vsi
[v
], tc_map
);
4516 dev_info(&pf
->pdev
->dev
,
4517 "Failed configuring TC for VSI seid=%d\n",
4519 /* Will try to configure as many components */
4521 /* Re-configure VSI vectors based on updated TC map */
4522 i40e_vsi_map_rings_to_vectors(pf
->vsi
[v
]);
4523 if (pf
->vsi
[v
]->netdev
)
4524 i40e_dcbnl_set_all(pf
->vsi
[v
]);
4530 * i40e_resume_port_tx - Resume port Tx
4533 * Resume a port's Tx and issue a PF reset in case of failure to
4536 static int i40e_resume_port_tx(struct i40e_pf
*pf
)
4538 struct i40e_hw
*hw
= &pf
->hw
;
4541 ret
= i40e_aq_resume_port_tx(hw
, NULL
);
4543 dev_info(&pf
->pdev
->dev
,
4544 "AQ command Resume Port Tx failed = %d\n",
4545 pf
->hw
.aq
.asq_last_status
);
4546 /* Schedule PF reset to recover */
4547 set_bit(__I40E_PF_RESET_REQUESTED
, &pf
->state
);
4548 i40e_service_event_schedule(pf
);
4555 * i40e_init_pf_dcb - Initialize DCB configuration
4556 * @pf: PF being configured
4558 * Query the current DCB configuration and cache it
4559 * in the hardware structure
4561 static int i40e_init_pf_dcb(struct i40e_pf
*pf
)
4563 struct i40e_hw
*hw
= &pf
->hw
;
4566 /* Get the initial DCB configuration */
4567 err
= i40e_init_dcb(hw
);
4569 /* Device/Function is not DCBX capable */
4570 if ((!hw
->func_caps
.dcb
) ||
4571 (hw
->dcbx_status
== I40E_DCBX_STATUS_DISABLED
)) {
4572 dev_info(&pf
->pdev
->dev
,
4573 "DCBX offload is not supported or is disabled for this PF.\n");
4575 if (pf
->flags
& I40E_FLAG_MFP_ENABLED
)
4579 /* When status is not DISABLED then DCBX in FW */
4580 pf
->dcbx_cap
= DCB_CAP_DCBX_LLD_MANAGED
|
4581 DCB_CAP_DCBX_VER_IEEE
;
4583 pf
->flags
|= I40E_FLAG_DCB_CAPABLE
;
4584 /* Enable DCB tagging only when more than one TC */
4585 if (i40e_dcb_get_num_tc(&hw
->local_dcbx_config
) > 1)
4586 pf
->flags
|= I40E_FLAG_DCB_ENABLED
;
4587 dev_dbg(&pf
->pdev
->dev
,
4588 "DCBX offload is supported for this PF.\n");
4591 dev_info(&pf
->pdev
->dev
,
4592 "AQ Querying DCB configuration failed: aq_err %d\n",
4593 pf
->hw
.aq
.asq_last_status
);
4599 #endif /* CONFIG_I40E_DCB */
4600 #define SPEED_SIZE 14
4603 * i40e_print_link_message - print link up or down
4604 * @vsi: the VSI for which link needs a message
4606 static void i40e_print_link_message(struct i40e_vsi
*vsi
, bool isup
)
4608 char speed
[SPEED_SIZE
] = "Unknown";
4609 char fc
[FC_SIZE
] = "RX/TX";
4612 netdev_info(vsi
->netdev
, "NIC Link is Down\n");
4616 /* Warn user if link speed on NPAR enabled partition is not at
4619 if (vsi
->back
->hw
.func_caps
.npar_enable
&&
4620 (vsi
->back
->hw
.phy
.link_info
.link_speed
== I40E_LINK_SPEED_1GB
||
4621 vsi
->back
->hw
.phy
.link_info
.link_speed
== I40E_LINK_SPEED_100MB
))
4622 netdev_warn(vsi
->netdev
,
4623 "The partition detected link speed that is less than 10Gbps\n");
4625 switch (vsi
->back
->hw
.phy
.link_info
.link_speed
) {
4626 case I40E_LINK_SPEED_40GB
:
4627 strlcpy(speed
, "40 Gbps", SPEED_SIZE
);
4629 case I40E_LINK_SPEED_10GB
:
4630 strlcpy(speed
, "10 Gbps", SPEED_SIZE
);
4632 case I40E_LINK_SPEED_1GB
:
4633 strlcpy(speed
, "1000 Mbps", SPEED_SIZE
);
4635 case I40E_LINK_SPEED_100MB
:
4636 strncpy(speed
, "100 Mbps", SPEED_SIZE
);
4642 switch (vsi
->back
->hw
.fc
.current_mode
) {
4644 strlcpy(fc
, "RX/TX", FC_SIZE
);
4646 case I40E_FC_TX_PAUSE
:
4647 strlcpy(fc
, "TX", FC_SIZE
);
4649 case I40E_FC_RX_PAUSE
:
4650 strlcpy(fc
, "RX", FC_SIZE
);
4653 strlcpy(fc
, "None", FC_SIZE
);
4657 netdev_info(vsi
->netdev
, "NIC Link is Up %s Full Duplex, Flow Control: %s\n",
4662 * i40e_up_complete - Finish the last steps of bringing up a connection
4663 * @vsi: the VSI being configured
4665 static int i40e_up_complete(struct i40e_vsi
*vsi
)
4667 struct i40e_pf
*pf
= vsi
->back
;
4670 if (pf
->flags
& I40E_FLAG_MSIX_ENABLED
)
4671 i40e_vsi_configure_msix(vsi
);
4673 i40e_configure_msi_and_legacy(vsi
);
4676 err
= i40e_vsi_control_rings(vsi
, true);
4680 clear_bit(__I40E_DOWN
, &vsi
->state
);
4681 i40e_napi_enable_all(vsi
);
4682 i40e_vsi_enable_irq(vsi
);
4684 if ((pf
->hw
.phy
.link_info
.link_info
& I40E_AQ_LINK_UP
) &&
4686 i40e_print_link_message(vsi
, true);
4687 netif_tx_start_all_queues(vsi
->netdev
);
4688 netif_carrier_on(vsi
->netdev
);
4689 } else if (vsi
->netdev
) {
4690 i40e_print_link_message(vsi
, false);
4691 /* need to check for qualified module here*/
4692 if ((pf
->hw
.phy
.link_info
.link_info
&
4693 I40E_AQ_MEDIA_AVAILABLE
) &&
4694 (!(pf
->hw
.phy
.link_info
.an_info
&
4695 I40E_AQ_QUALIFIED_MODULE
)))
4696 netdev_err(vsi
->netdev
,
4697 "the driver failed to link because an unqualified module was detected.");
4700 /* replay FDIR SB filters */
4701 if (vsi
->type
== I40E_VSI_FDIR
) {
4702 /* reset fd counters */
4703 pf
->fd_add_err
= pf
->fd_atr_cnt
= 0;
4704 if (pf
->fd_tcp_rule
> 0) {
4705 pf
->flags
&= ~I40E_FLAG_FD_ATR_ENABLED
;
4706 dev_info(&pf
->pdev
->dev
, "Forcing ATR off, sideband rules for TCP/IPv4 exist\n");
4707 pf
->fd_tcp_rule
= 0;
4709 i40e_fdir_filter_restore(vsi
);
4711 i40e_service_event_schedule(pf
);
4717 * i40e_vsi_reinit_locked - Reset the VSI
4718 * @vsi: the VSI being configured
4720 * Rebuild the ring structs after some configuration
4721 * has changed, e.g. MTU size.
4723 static void i40e_vsi_reinit_locked(struct i40e_vsi
*vsi
)
4725 struct i40e_pf
*pf
= vsi
->back
;
4727 WARN_ON(in_interrupt());
4728 while (test_and_set_bit(__I40E_CONFIG_BUSY
, &pf
->state
))
4729 usleep_range(1000, 2000);
4732 /* Give a VF some time to respond to the reset. The
4733 * two second wait is based upon the watchdog cycle in
4736 if (vsi
->type
== I40E_VSI_SRIOV
)
4739 clear_bit(__I40E_CONFIG_BUSY
, &pf
->state
);
4743 * i40e_up - Bring the connection back up after being down
4744 * @vsi: the VSI being configured
4746 int i40e_up(struct i40e_vsi
*vsi
)
4750 err
= i40e_vsi_configure(vsi
);
4752 err
= i40e_up_complete(vsi
);
4758 * i40e_down - Shutdown the connection processing
4759 * @vsi: the VSI being stopped
4761 void i40e_down(struct i40e_vsi
*vsi
)
4765 /* It is assumed that the caller of this function
4766 * sets the vsi->state __I40E_DOWN bit.
4769 netif_carrier_off(vsi
->netdev
);
4770 netif_tx_disable(vsi
->netdev
);
4772 i40e_vsi_disable_irq(vsi
);
4773 i40e_vsi_control_rings(vsi
, false);
4774 i40e_napi_disable_all(vsi
);
4776 for (i
= 0; i
< vsi
->num_queue_pairs
; i
++) {
4777 i40e_clean_tx_ring(vsi
->tx_rings
[i
]);
4778 i40e_clean_rx_ring(vsi
->rx_rings
[i
]);
4783 * i40e_setup_tc - configure multiple traffic classes
4784 * @netdev: net device to configure
4785 * @tc: number of traffic classes to enable
4788 int i40e_setup_tc(struct net_device
*netdev
, u8 tc
)
4790 static int i40e_setup_tc(struct net_device
*netdev
, u8 tc
)
4793 struct i40e_netdev_priv
*np
= netdev_priv(netdev
);
4794 struct i40e_vsi
*vsi
= np
->vsi
;
4795 struct i40e_pf
*pf
= vsi
->back
;
4800 /* Check if DCB enabled to continue */
4801 if (!(pf
->flags
& I40E_FLAG_DCB_ENABLED
)) {
4802 netdev_info(netdev
, "DCB is not enabled for adapter\n");
4806 /* Check if MFP enabled */
4807 if (pf
->flags
& I40E_FLAG_MFP_ENABLED
) {
4808 netdev_info(netdev
, "Configuring TC not supported in MFP mode\n");
4812 /* Check whether tc count is within enabled limit */
4813 if (tc
> i40e_pf_get_num_tc(pf
)) {
4814 netdev_info(netdev
, "TC count greater than enabled on link for adapter\n");
4818 /* Generate TC map for number of tc requested */
4819 for (i
= 0; i
< tc
; i
++)
4820 enabled_tc
|= (1 << i
);
4822 /* Requesting same TC configuration as already enabled */
4823 if (enabled_tc
== vsi
->tc_config
.enabled_tc
)
4826 /* Quiesce VSI queues */
4827 i40e_quiesce_vsi(vsi
);
4829 /* Configure VSI for enabled TCs */
4830 ret
= i40e_vsi_config_tc(vsi
, enabled_tc
);
4832 netdev_info(netdev
, "Failed configuring TC for VSI seid=%d\n",
4838 i40e_unquiesce_vsi(vsi
);
4845 * i40e_open - Called when a network interface is made active
4846 * @netdev: network interface device structure
4848 * The open entry point is called when a network interface is made
4849 * active by the system (IFF_UP). At this point all resources needed
4850 * for transmit and receive operations are allocated, the interrupt
4851 * handler is registered with the OS, the netdev watchdog subtask is
4852 * enabled, and the stack is notified that the interface is ready.
4854 * Returns 0 on success, negative value on failure
4857 int i40e_open(struct net_device
*netdev
)
4859 static int i40e_open(struct net_device
*netdev
)
4862 struct i40e_netdev_priv
*np
= netdev_priv(netdev
);
4863 struct i40e_vsi
*vsi
= np
->vsi
;
4864 struct i40e_pf
*pf
= vsi
->back
;
4867 /* disallow open during test or if eeprom is broken */
4868 if (test_bit(__I40E_TESTING
, &pf
->state
) ||
4869 test_bit(__I40E_BAD_EEPROM
, &pf
->state
))
4872 netif_carrier_off(netdev
);
4874 err
= i40e_vsi_open(vsi
);
4878 /* configure global TSO hardware offload settings */
4879 wr32(&pf
->hw
, I40E_GLLAN_TSOMSK_F
, be32_to_cpu(TCP_FLAG_PSH
|
4880 TCP_FLAG_FIN
) >> 16);
4881 wr32(&pf
->hw
, I40E_GLLAN_TSOMSK_M
, be32_to_cpu(TCP_FLAG_PSH
|
4883 TCP_FLAG_CWR
) >> 16);
4884 wr32(&pf
->hw
, I40E_GLLAN_TSOMSK_L
, be32_to_cpu(TCP_FLAG_CWR
) >> 16);
4886 #ifdef CONFIG_I40E_VXLAN
4887 vxlan_get_rx_port(netdev
);
4895 * @vsi: the VSI to open
4897 * Finish initialization of the VSI.
4899 * Returns 0 on success, negative value on failure
4901 int i40e_vsi_open(struct i40e_vsi
*vsi
)
4903 struct i40e_pf
*pf
= vsi
->back
;
4904 char int_name
[I40E_INT_NAME_STR_LEN
];
4907 /* allocate descriptors */
4908 err
= i40e_vsi_setup_tx_resources(vsi
);
4911 err
= i40e_vsi_setup_rx_resources(vsi
);
4915 err
= i40e_vsi_configure(vsi
);
4920 snprintf(int_name
, sizeof(int_name
) - 1, "%s-%s",
4921 dev_driver_string(&pf
->pdev
->dev
), vsi
->netdev
->name
);
4922 err
= i40e_vsi_request_irq(vsi
, int_name
);
4926 /* Notify the stack of the actual queue counts. */
4927 err
= netif_set_real_num_tx_queues(vsi
->netdev
,
4928 vsi
->num_queue_pairs
);
4930 goto err_set_queues
;
4932 err
= netif_set_real_num_rx_queues(vsi
->netdev
,
4933 vsi
->num_queue_pairs
);
4935 goto err_set_queues
;
4937 } else if (vsi
->type
== I40E_VSI_FDIR
) {
4938 snprintf(int_name
, sizeof(int_name
) - 1, "%s-%s:fdir",
4939 dev_driver_string(&pf
->pdev
->dev
),
4940 dev_name(&pf
->pdev
->dev
));
4941 err
= i40e_vsi_request_irq(vsi
, int_name
);
4948 err
= i40e_up_complete(vsi
);
4950 goto err_up_complete
;
4957 i40e_vsi_free_irq(vsi
);
4959 i40e_vsi_free_rx_resources(vsi
);
4961 i40e_vsi_free_tx_resources(vsi
);
4962 if (vsi
== pf
->vsi
[pf
->lan_vsi
])
4963 i40e_do_reset(pf
, (1 << __I40E_PF_RESET_REQUESTED
));
4969 * i40e_fdir_filter_exit - Cleans up the Flow Director accounting
4970 * @pf: Pointer to pf
4972 * This function destroys the hlist where all the Flow Director
4973 * filters were saved.
4975 static void i40e_fdir_filter_exit(struct i40e_pf
*pf
)
4977 struct i40e_fdir_filter
*filter
;
4978 struct hlist_node
*node2
;
4980 hlist_for_each_entry_safe(filter
, node2
,
4981 &pf
->fdir_filter_list
, fdir_node
) {
4982 hlist_del(&filter
->fdir_node
);
4985 pf
->fdir_pf_active_filters
= 0;
4989 * i40e_close - Disables a network interface
4990 * @netdev: network interface device structure
4992 * The close entry point is called when an interface is de-activated
4993 * by the OS. The hardware is still under the driver's control, but
4994 * this netdev interface is disabled.
4996 * Returns 0, this is not allowed to fail
4999 int i40e_close(struct net_device
*netdev
)
5001 static int i40e_close(struct net_device
*netdev
)
5004 struct i40e_netdev_priv
*np
= netdev_priv(netdev
);
5005 struct i40e_vsi
*vsi
= np
->vsi
;
5007 i40e_vsi_close(vsi
);
5013 * i40e_do_reset - Start a PF or Core Reset sequence
5014 * @pf: board private structure
5015 * @reset_flags: which reset is requested
5017 * The essential difference in resets is that the PF Reset
5018 * doesn't clear the packet buffers, doesn't reset the PE
5019 * firmware, and doesn't bother the other PFs on the chip.
5021 void i40e_do_reset(struct i40e_pf
*pf
, u32 reset_flags
)
5025 WARN_ON(in_interrupt());
5027 if (i40e_check_asq_alive(&pf
->hw
))
5028 i40e_vc_notify_reset(pf
);
5030 /* do the biggest reset indicated */
5031 if (reset_flags
& (1 << __I40E_GLOBAL_RESET_REQUESTED
)) {
5033 /* Request a Global Reset
5035 * This will start the chip's countdown to the actual full
5036 * chip reset event, and a warning interrupt to be sent
5037 * to all PFs, including the requestor. Our handler
5038 * for the warning interrupt will deal with the shutdown
5039 * and recovery of the switch setup.
5041 dev_dbg(&pf
->pdev
->dev
, "GlobalR requested\n");
5042 val
= rd32(&pf
->hw
, I40E_GLGEN_RTRIG
);
5043 val
|= I40E_GLGEN_RTRIG_GLOBR_MASK
;
5044 wr32(&pf
->hw
, I40E_GLGEN_RTRIG
, val
);
5046 } else if (reset_flags
& (1 << __I40E_CORE_RESET_REQUESTED
)) {
5048 /* Request a Core Reset
5050 * Same as Global Reset, except does *not* include the MAC/PHY
5052 dev_dbg(&pf
->pdev
->dev
, "CoreR requested\n");
5053 val
= rd32(&pf
->hw
, I40E_GLGEN_RTRIG
);
5054 val
|= I40E_GLGEN_RTRIG_CORER_MASK
;
5055 wr32(&pf
->hw
, I40E_GLGEN_RTRIG
, val
);
5056 i40e_flush(&pf
->hw
);
5058 } else if (reset_flags
& (1 << __I40E_EMP_RESET_REQUESTED
)) {
5060 /* Request a Firmware Reset
5062 * Same as Global reset, plus restarting the
5063 * embedded firmware engine.
5065 /* enable EMP Reset */
5066 val
= rd32(&pf
->hw
, I40E_GLGEN_RSTENA_EMP
);
5067 val
|= I40E_GLGEN_RSTENA_EMP_EMP_RST_ENA_MASK
;
5068 wr32(&pf
->hw
, I40E_GLGEN_RSTENA_EMP
, val
);
5070 /* force the reset */
5071 val
= rd32(&pf
->hw
, I40E_GLGEN_RTRIG
);
5072 val
|= I40E_GLGEN_RTRIG_EMPFWR_MASK
;
5073 wr32(&pf
->hw
, I40E_GLGEN_RTRIG
, val
);
5074 i40e_flush(&pf
->hw
);
5076 } else if (reset_flags
& (1 << __I40E_PF_RESET_REQUESTED
)) {
5078 /* Request a PF Reset
5080 * Resets only the PF-specific registers
5082 * This goes directly to the tear-down and rebuild of
5083 * the switch, since we need to do all the recovery as
5084 * for the Core Reset.
5086 dev_dbg(&pf
->pdev
->dev
, "PFR requested\n");
5087 i40e_handle_reset_warning(pf
);
5089 } else if (reset_flags
& (1 << __I40E_REINIT_REQUESTED
)) {
5092 /* Find the VSI(s) that requested a re-init */
5093 dev_info(&pf
->pdev
->dev
,
5094 "VSI reinit requested\n");
5095 for (v
= 0; v
< pf
->num_alloc_vsi
; v
++) {
5096 struct i40e_vsi
*vsi
= pf
->vsi
[v
];
5098 test_bit(__I40E_REINIT_REQUESTED
, &vsi
->state
)) {
5099 i40e_vsi_reinit_locked(pf
->vsi
[v
]);
5100 clear_bit(__I40E_REINIT_REQUESTED
, &vsi
->state
);
5104 /* no further action needed, so return now */
5106 } else if (reset_flags
& (1 << __I40E_DOWN_REQUESTED
)) {
5109 /* Find the VSI(s) that needs to be brought down */
5110 dev_info(&pf
->pdev
->dev
, "VSI down requested\n");
5111 for (v
= 0; v
< pf
->num_alloc_vsi
; v
++) {
5112 struct i40e_vsi
*vsi
= pf
->vsi
[v
];
5114 test_bit(__I40E_DOWN_REQUESTED
, &vsi
->state
)) {
5115 set_bit(__I40E_DOWN
, &vsi
->state
);
5117 clear_bit(__I40E_DOWN_REQUESTED
, &vsi
->state
);
5121 /* no further action needed, so return now */
5124 dev_info(&pf
->pdev
->dev
,
5125 "bad reset request 0x%08x\n", reset_flags
);
5130 #ifdef CONFIG_I40E_DCB
5132 * i40e_dcb_need_reconfig - Check if DCB needs reconfig
5133 * @pf: board private structure
5134 * @old_cfg: current DCB config
5135 * @new_cfg: new DCB config
5137 bool i40e_dcb_need_reconfig(struct i40e_pf
*pf
,
5138 struct i40e_dcbx_config
*old_cfg
,
5139 struct i40e_dcbx_config
*new_cfg
)
5141 bool need_reconfig
= false;
5143 /* Check if ETS configuration has changed */
5144 if (memcmp(&new_cfg
->etscfg
,
5146 sizeof(new_cfg
->etscfg
))) {
5147 /* If Priority Table has changed reconfig is needed */
5148 if (memcmp(&new_cfg
->etscfg
.prioritytable
,
5149 &old_cfg
->etscfg
.prioritytable
,
5150 sizeof(new_cfg
->etscfg
.prioritytable
))) {
5151 need_reconfig
= true;
5152 dev_dbg(&pf
->pdev
->dev
, "ETS UP2TC changed.\n");
5155 if (memcmp(&new_cfg
->etscfg
.tcbwtable
,
5156 &old_cfg
->etscfg
.tcbwtable
,
5157 sizeof(new_cfg
->etscfg
.tcbwtable
)))
5158 dev_dbg(&pf
->pdev
->dev
, "ETS TC BW Table changed.\n");
5160 if (memcmp(&new_cfg
->etscfg
.tsatable
,
5161 &old_cfg
->etscfg
.tsatable
,
5162 sizeof(new_cfg
->etscfg
.tsatable
)))
5163 dev_dbg(&pf
->pdev
->dev
, "ETS TSA Table changed.\n");
5166 /* Check if PFC configuration has changed */
5167 if (memcmp(&new_cfg
->pfc
,
5169 sizeof(new_cfg
->pfc
))) {
5170 need_reconfig
= true;
5171 dev_dbg(&pf
->pdev
->dev
, "PFC config change detected.\n");
5174 /* Check if APP Table has changed */
5175 if (memcmp(&new_cfg
->app
,
5177 sizeof(new_cfg
->app
))) {
5178 need_reconfig
= true;
5179 dev_dbg(&pf
->pdev
->dev
, "APP Table change detected.\n");
5182 dev_dbg(&pf
->pdev
->dev
, "%s: need_reconfig=%d\n", __func__
,
5184 return need_reconfig
;
5188 * i40e_handle_lldp_event - Handle LLDP Change MIB event
5189 * @pf: board private structure
5190 * @e: event info posted on ARQ
5192 static int i40e_handle_lldp_event(struct i40e_pf
*pf
,
5193 struct i40e_arq_event_info
*e
)
5195 struct i40e_aqc_lldp_get_mib
*mib
=
5196 (struct i40e_aqc_lldp_get_mib
*)&e
->desc
.params
.raw
;
5197 struct i40e_hw
*hw
= &pf
->hw
;
5198 struct i40e_dcbx_config
*dcbx_cfg
= &hw
->local_dcbx_config
;
5199 struct i40e_dcbx_config tmp_dcbx_cfg
;
5200 bool need_reconfig
= false;
5204 /* Not DCB capable or capability disabled */
5205 if (!(pf
->flags
& I40E_FLAG_DCB_CAPABLE
))
5208 /* Ignore if event is not for Nearest Bridge */
5209 type
= ((mib
->type
>> I40E_AQ_LLDP_BRIDGE_TYPE_SHIFT
)
5210 & I40E_AQ_LLDP_BRIDGE_TYPE_MASK
);
5211 dev_dbg(&pf
->pdev
->dev
,
5212 "%s: LLDP event mib bridge type 0x%x\n", __func__
, type
);
5213 if (type
!= I40E_AQ_LLDP_BRIDGE_TYPE_NEAREST_BRIDGE
)
5216 /* Check MIB Type and return if event for Remote MIB update */
5217 type
= mib
->type
& I40E_AQ_LLDP_MIB_TYPE_MASK
;
5218 dev_dbg(&pf
->pdev
->dev
,
5219 "%s: LLDP event mib type %s\n", __func__
,
5220 type
? "remote" : "local");
5221 if (type
== I40E_AQ_LLDP_MIB_REMOTE
) {
5222 /* Update the remote cached instance and return */
5223 ret
= i40e_aq_get_dcb_config(hw
, I40E_AQ_LLDP_MIB_REMOTE
,
5224 I40E_AQ_LLDP_BRIDGE_TYPE_NEAREST_BRIDGE
,
5225 &hw
->remote_dcbx_config
);
5229 memset(&tmp_dcbx_cfg
, 0, sizeof(tmp_dcbx_cfg
));
5230 /* Store the old configuration */
5231 tmp_dcbx_cfg
= *dcbx_cfg
;
5233 /* Get updated DCBX data from firmware */
5234 ret
= i40e_get_dcb_config(&pf
->hw
);
5236 dev_info(&pf
->pdev
->dev
, "Failed querying DCB configuration data from firmware.\n");
5240 /* No change detected in DCBX configs */
5241 if (!memcmp(&tmp_dcbx_cfg
, dcbx_cfg
, sizeof(tmp_dcbx_cfg
))) {
5242 dev_dbg(&pf
->pdev
->dev
, "No change detected in DCBX configuration.\n");
5246 need_reconfig
= i40e_dcb_need_reconfig(pf
, &tmp_dcbx_cfg
, dcbx_cfg
);
5248 i40e_dcbnl_flush_apps(pf
, dcbx_cfg
);
5253 /* Enable DCB tagging only when more than one TC */
5254 if (i40e_dcb_get_num_tc(dcbx_cfg
) > 1)
5255 pf
->flags
|= I40E_FLAG_DCB_ENABLED
;
5257 pf
->flags
&= ~I40E_FLAG_DCB_ENABLED
;
5259 set_bit(__I40E_PORT_TX_SUSPENDED
, &pf
->state
);
5260 /* Reconfiguration needed quiesce all VSIs */
5261 i40e_pf_quiesce_all_vsi(pf
);
5263 /* Changes in configuration update VEB/VSI */
5264 i40e_dcb_reconfigure(pf
);
5266 ret
= i40e_resume_port_tx(pf
);
5268 clear_bit(__I40E_PORT_TX_SUSPENDED
, &pf
->state
);
5269 /* In case of error no point in resuming VSIs */
5273 /* Wait for the PF's Tx queues to be disabled */
5274 ret
= i40e_pf_wait_txq_disabled(pf
);
5276 /* Schedule PF reset to recover */
5277 set_bit(__I40E_PF_RESET_REQUESTED
, &pf
->state
);
5278 i40e_service_event_schedule(pf
);
5280 i40e_pf_unquiesce_all_vsi(pf
);
5286 #endif /* CONFIG_I40E_DCB */
5289 * i40e_do_reset_safe - Protected reset path for userland calls.
5290 * @pf: board private structure
5291 * @reset_flags: which reset is requested
5294 void i40e_do_reset_safe(struct i40e_pf
*pf
, u32 reset_flags
)
5297 i40e_do_reset(pf
, reset_flags
);
5302 * i40e_handle_lan_overflow_event - Handler for LAN queue overflow event
5303 * @pf: board private structure
5304 * @e: event info posted on ARQ
5306 * Handler for LAN Queue Overflow Event generated by the firmware for PF
5309 static void i40e_handle_lan_overflow_event(struct i40e_pf
*pf
,
5310 struct i40e_arq_event_info
*e
)
5312 struct i40e_aqc_lan_overflow
*data
=
5313 (struct i40e_aqc_lan_overflow
*)&e
->desc
.params
.raw
;
5314 u32 queue
= le32_to_cpu(data
->prtdcb_rupto
);
5315 u32 qtx_ctl
= le32_to_cpu(data
->otx_ctl
);
5316 struct i40e_hw
*hw
= &pf
->hw
;
5320 dev_dbg(&pf
->pdev
->dev
, "overflow Rx Queue Number = %d QTX_CTL=0x%08x\n",
5323 /* Queue belongs to VF, find the VF and issue VF reset */
5324 if (((qtx_ctl
& I40E_QTX_CTL_PFVF_Q_MASK
)
5325 >> I40E_QTX_CTL_PFVF_Q_SHIFT
) == I40E_QTX_CTL_VF_QUEUE
) {
5326 vf_id
= (u16
)((qtx_ctl
& I40E_QTX_CTL_VFVM_INDX_MASK
)
5327 >> I40E_QTX_CTL_VFVM_INDX_SHIFT
);
5328 vf_id
-= hw
->func_caps
.vf_base_id
;
5329 vf
= &pf
->vf
[vf_id
];
5330 i40e_vc_notify_vf_reset(vf
);
5331 /* Allow VF to process pending reset notification */
5333 i40e_reset_vf(vf
, false);
5338 * i40e_service_event_complete - Finish up the service event
5339 * @pf: board private structure
5341 static void i40e_service_event_complete(struct i40e_pf
*pf
)
5343 BUG_ON(!test_bit(__I40E_SERVICE_SCHED
, &pf
->state
));
5345 /* flush memory to make sure state is correct before next watchog */
5346 smp_mb__before_atomic();
5347 clear_bit(__I40E_SERVICE_SCHED
, &pf
->state
);
5351 * i40e_get_cur_guaranteed_fd_count - Get the consumed guaranteed FD filters
5352 * @pf: board private structure
5354 int i40e_get_cur_guaranteed_fd_count(struct i40e_pf
*pf
)
5358 val
= rd32(&pf
->hw
, I40E_PFQF_FDSTAT
);
5359 fcnt_prog
= (val
& I40E_PFQF_FDSTAT_GUARANT_CNT_MASK
);
5364 * i40e_get_current_fd_count - Get the count of total FD filters programmed
5365 * @pf: board private structure
5367 int i40e_get_current_fd_count(struct i40e_pf
*pf
)
5370 val
= rd32(&pf
->hw
, I40E_PFQF_FDSTAT
);
5371 fcnt_prog
= (val
& I40E_PFQF_FDSTAT_GUARANT_CNT_MASK
) +
5372 ((val
& I40E_PFQF_FDSTAT_BEST_CNT_MASK
) >>
5373 I40E_PFQF_FDSTAT_BEST_CNT_SHIFT
);
5378 * i40e_fdir_check_and_reenable - Function to reenabe FD ATR or SB if disabled
5379 * @pf: board private structure
5381 void i40e_fdir_check_and_reenable(struct i40e_pf
*pf
)
5383 u32 fcnt_prog
, fcnt_avail
;
5385 if (test_bit(__I40E_FD_FLUSH_REQUESTED
, &pf
->state
))
5388 /* Check if, FD SB or ATR was auto disabled and if there is enough room
5391 fcnt_prog
= i40e_get_cur_guaranteed_fd_count(pf
);
5392 fcnt_avail
= pf
->fdir_pf_filter_count
;
5393 if ((fcnt_prog
< (fcnt_avail
- I40E_FDIR_BUFFER_HEAD_ROOM
)) ||
5394 (pf
->fd_add_err
== 0) ||
5395 (i40e_get_current_atr_cnt(pf
) < pf
->fd_atr_cnt
)) {
5396 if ((pf
->flags
& I40E_FLAG_FD_SB_ENABLED
) &&
5397 (pf
->auto_disable_flags
& I40E_FLAG_FD_SB_ENABLED
)) {
5398 pf
->auto_disable_flags
&= ~I40E_FLAG_FD_SB_ENABLED
;
5399 dev_info(&pf
->pdev
->dev
, "FD Sideband/ntuple is being enabled since we have space in the table now\n");
5402 /* Wait for some more space to be available to turn on ATR */
5403 if (fcnt_prog
< (fcnt_avail
- I40E_FDIR_BUFFER_HEAD_ROOM
* 2)) {
5404 if ((pf
->flags
& I40E_FLAG_FD_ATR_ENABLED
) &&
5405 (pf
->auto_disable_flags
& I40E_FLAG_FD_ATR_ENABLED
)) {
5406 pf
->auto_disable_flags
&= ~I40E_FLAG_FD_ATR_ENABLED
;
5407 dev_info(&pf
->pdev
->dev
, "ATR is being enabled since we have space in the table now\n");
5412 #define I40E_MIN_FD_FLUSH_INTERVAL 10
5414 * i40e_fdir_flush_and_replay - Function to flush all FD filters and replay SB
5415 * @pf: board private structure
5417 static void i40e_fdir_flush_and_replay(struct i40e_pf
*pf
)
5419 int flush_wait_retry
= 50;
5422 if (!(pf
->flags
& (I40E_FLAG_FD_SB_ENABLED
| I40E_FLAG_FD_ATR_ENABLED
)))
5425 if (time_after(jiffies
, pf
->fd_flush_timestamp
+
5426 (I40E_MIN_FD_FLUSH_INTERVAL
* HZ
))) {
5427 set_bit(__I40E_FD_FLUSH_REQUESTED
, &pf
->state
);
5428 pf
->fd_flush_timestamp
= jiffies
;
5429 pf
->auto_disable_flags
|= I40E_FLAG_FD_SB_ENABLED
;
5430 pf
->flags
&= ~I40E_FLAG_FD_ATR_ENABLED
;
5431 /* flush all filters */
5432 wr32(&pf
->hw
, I40E_PFQF_CTL_1
,
5433 I40E_PFQF_CTL_1_CLEARFDTABLE_MASK
);
5434 i40e_flush(&pf
->hw
);
5438 /* Check FD flush status every 5-6msec */
5439 usleep_range(5000, 6000);
5440 reg
= rd32(&pf
->hw
, I40E_PFQF_CTL_1
);
5441 if (!(reg
& I40E_PFQF_CTL_1_CLEARFDTABLE_MASK
))
5443 } while (flush_wait_retry
--);
5444 if (reg
& I40E_PFQF_CTL_1_CLEARFDTABLE_MASK
) {
5445 dev_warn(&pf
->pdev
->dev
, "FD table did not flush, needs more time\n");
5447 /* replay sideband filters */
5448 i40e_fdir_filter_restore(pf
->vsi
[pf
->lan_vsi
]);
5450 pf
->flags
|= I40E_FLAG_FD_ATR_ENABLED
;
5451 pf
->auto_disable_flags
&= ~I40E_FLAG_FD_ATR_ENABLED
;
5452 pf
->auto_disable_flags
&= ~I40E_FLAG_FD_SB_ENABLED
;
5453 clear_bit(__I40E_FD_FLUSH_REQUESTED
, &pf
->state
);
5454 dev_info(&pf
->pdev
->dev
, "FD Filter table flushed and FD-SB replayed.\n");
5460 * i40e_get_current_atr_count - Get the count of total FD ATR filters programmed
5461 * @pf: board private structure
5463 int i40e_get_current_atr_cnt(struct i40e_pf
*pf
)
5465 return i40e_get_current_fd_count(pf
) - pf
->fdir_pf_active_filters
;
5468 /* We can see up to 256 filter programming desc in transit if the filters are
5469 * being applied really fast; before we see the first
5470 * filter miss error on Rx queue 0. Accumulating enough error messages before
5471 * reacting will make sure we don't cause flush too often.
5473 #define I40E_MAX_FD_PROGRAM_ERROR 256
5476 * i40e_fdir_reinit_subtask - Worker thread to reinit FDIR filter table
5477 * @pf: board private structure
5479 static void i40e_fdir_reinit_subtask(struct i40e_pf
*pf
)
5482 /* if interface is down do nothing */
5483 if (test_bit(__I40E_DOWN
, &pf
->state
))
5486 if (!(pf
->flags
& (I40E_FLAG_FD_SB_ENABLED
| I40E_FLAG_FD_ATR_ENABLED
)))
5489 if ((pf
->fd_add_err
>= I40E_MAX_FD_PROGRAM_ERROR
) &&
5490 (i40e_get_current_atr_cnt(pf
) >= pf
->fd_atr_cnt
) &&
5491 (i40e_get_current_atr_cnt(pf
) > pf
->fdir_pf_filter_count
))
5492 i40e_fdir_flush_and_replay(pf
);
5494 i40e_fdir_check_and_reenable(pf
);
5499 * i40e_vsi_link_event - notify VSI of a link event
5500 * @vsi: vsi to be notified
5501 * @link_up: link up or down
5503 static void i40e_vsi_link_event(struct i40e_vsi
*vsi
, bool link_up
)
5505 if (!vsi
|| test_bit(__I40E_DOWN
, &vsi
->state
))
5508 switch (vsi
->type
) {
5513 if (!vsi
->netdev
|| !vsi
->netdev_registered
)
5517 netif_carrier_on(vsi
->netdev
);
5518 netif_tx_wake_all_queues(vsi
->netdev
);
5520 netif_carrier_off(vsi
->netdev
);
5521 netif_tx_stop_all_queues(vsi
->netdev
);
5525 case I40E_VSI_SRIOV
:
5526 case I40E_VSI_VMDQ2
:
5528 case I40E_VSI_MIRROR
:
5530 /* there is no notification for other VSIs */
5536 * i40e_veb_link_event - notify elements on the veb of a link event
5537 * @veb: veb to be notified
5538 * @link_up: link up or down
5540 static void i40e_veb_link_event(struct i40e_veb
*veb
, bool link_up
)
5545 if (!veb
|| !veb
->pf
)
5549 /* depth first... */
5550 for (i
= 0; i
< I40E_MAX_VEB
; i
++)
5551 if (pf
->veb
[i
] && (pf
->veb
[i
]->uplink_seid
== veb
->seid
))
5552 i40e_veb_link_event(pf
->veb
[i
], link_up
);
5554 /* ... now the local VSIs */
5555 for (i
= 0; i
< pf
->num_alloc_vsi
; i
++)
5556 if (pf
->vsi
[i
] && (pf
->vsi
[i
]->uplink_seid
== veb
->seid
))
5557 i40e_vsi_link_event(pf
->vsi
[i
], link_up
);
5561 * i40e_link_event - Update netif_carrier status
5562 * @pf: board private structure
5564 static void i40e_link_event(struct i40e_pf
*pf
)
5566 bool new_link
, old_link
;
5567 struct i40e_vsi
*vsi
= pf
->vsi
[pf
->lan_vsi
];
5568 u8 new_link_speed
, old_link_speed
;
5570 /* set this to force the get_link_status call to refresh state */
5571 pf
->hw
.phy
.get_link_info
= true;
5573 old_link
= (pf
->hw
.phy
.link_info_old
.link_info
& I40E_AQ_LINK_UP
);
5574 new_link
= i40e_get_link_status(&pf
->hw
);
5575 old_link_speed
= pf
->hw
.phy
.link_info_old
.link_speed
;
5576 new_link_speed
= pf
->hw
.phy
.link_info
.link_speed
;
5578 if (new_link
== old_link
&&
5579 new_link_speed
== old_link_speed
&&
5580 (test_bit(__I40E_DOWN
, &vsi
->state
) ||
5581 new_link
== netif_carrier_ok(vsi
->netdev
)))
5584 if (!test_bit(__I40E_DOWN
, &vsi
->state
))
5585 i40e_print_link_message(vsi
, new_link
);
5587 /* Notify the base of the switch tree connected to
5588 * the link. Floating VEBs are not notified.
5590 if (pf
->lan_veb
!= I40E_NO_VEB
&& pf
->veb
[pf
->lan_veb
])
5591 i40e_veb_link_event(pf
->veb
[pf
->lan_veb
], new_link
);
5593 i40e_vsi_link_event(vsi
, new_link
);
5596 i40e_vc_notify_link_state(pf
);
5598 if (pf
->flags
& I40E_FLAG_PTP
)
5599 i40e_ptp_set_increment(pf
);
5603 * i40e_check_hang_subtask - Check for hung queues and dropped interrupts
5604 * @pf: board private structure
5606 * Set the per-queue flags to request a check for stuck queues in the irq
5607 * clean functions, then force interrupts to be sure the irq clean is called.
5609 static void i40e_check_hang_subtask(struct i40e_pf
*pf
)
5613 /* If we're down or resetting, just bail */
5614 if (test_bit(__I40E_DOWN
, &pf
->state
) ||
5615 test_bit(__I40E_CONFIG_BUSY
, &pf
->state
))
5618 /* for each VSI/netdev
5620 * set the check flag
5622 * force an interrupt
5624 for (v
= 0; v
< pf
->num_alloc_vsi
; v
++) {
5625 struct i40e_vsi
*vsi
= pf
->vsi
[v
];
5629 test_bit(__I40E_DOWN
, &vsi
->state
) ||
5630 (vsi
->netdev
&& !netif_carrier_ok(vsi
->netdev
)))
5633 for (i
= 0; i
< vsi
->num_queue_pairs
; i
++) {
5634 set_check_for_tx_hang(vsi
->tx_rings
[i
]);
5635 if (test_bit(__I40E_HANG_CHECK_ARMED
,
5636 &vsi
->tx_rings
[i
]->state
))
5641 if (!(pf
->flags
& I40E_FLAG_MSIX_ENABLED
)) {
5642 wr32(&vsi
->back
->hw
, I40E_PFINT_DYN_CTL0
,
5643 (I40E_PFINT_DYN_CTL0_INTENA_MASK
|
5644 I40E_PFINT_DYN_CTL0_SWINT_TRIG_MASK
|
5645 I40E_PFINT_DYN_CTL0_ITR_INDX_MASK
|
5646 I40E_PFINT_DYN_CTL0_SW_ITR_INDX_ENA_MASK
|
5647 I40E_PFINT_DYN_CTL0_SW_ITR_INDX_MASK
));
5649 u16 vec
= vsi
->base_vector
- 1;
5650 u32 val
= (I40E_PFINT_DYN_CTLN_INTENA_MASK
|
5651 I40E_PFINT_DYN_CTLN_SWINT_TRIG_MASK
|
5652 I40E_PFINT_DYN_CTLN_ITR_INDX_MASK
|
5653 I40E_PFINT_DYN_CTLN_SW_ITR_INDX_ENA_MASK
|
5654 I40E_PFINT_DYN_CTLN_SW_ITR_INDX_MASK
);
5655 for (i
= 0; i
< vsi
->num_q_vectors
; i
++, vec
++)
5656 wr32(&vsi
->back
->hw
,
5657 I40E_PFINT_DYN_CTLN(vec
), val
);
5659 i40e_flush(&vsi
->back
->hw
);
5665 * i40e_watchdog_subtask - periodic checks not using event driven response
5666 * @pf: board private structure
5668 static void i40e_watchdog_subtask(struct i40e_pf
*pf
)
5672 /* if interface is down do nothing */
5673 if (test_bit(__I40E_DOWN
, &pf
->state
) ||
5674 test_bit(__I40E_CONFIG_BUSY
, &pf
->state
))
5677 /* make sure we don't do these things too often */
5678 if (time_before(jiffies
, (pf
->service_timer_previous
+
5679 pf
->service_timer_period
)))
5681 pf
->service_timer_previous
= jiffies
;
5683 i40e_check_hang_subtask(pf
);
5684 i40e_link_event(pf
);
5686 /* Update the stats for active netdevs so the network stack
5687 * can look at updated numbers whenever it cares to
5689 for (i
= 0; i
< pf
->num_alloc_vsi
; i
++)
5690 if (pf
->vsi
[i
] && pf
->vsi
[i
]->netdev
)
5691 i40e_update_stats(pf
->vsi
[i
]);
5693 /* Update the stats for the active switching components */
5694 for (i
= 0; i
< I40E_MAX_VEB
; i
++)
5696 i40e_update_veb_stats(pf
->veb
[i
]);
5698 i40e_ptp_rx_hang(pf
->vsi
[pf
->lan_vsi
]);
5702 * i40e_reset_subtask - Set up for resetting the device and driver
5703 * @pf: board private structure
5705 static void i40e_reset_subtask(struct i40e_pf
*pf
)
5707 u32 reset_flags
= 0;
5710 if (test_bit(__I40E_REINIT_REQUESTED
, &pf
->state
)) {
5711 reset_flags
|= (1 << __I40E_REINIT_REQUESTED
);
5712 clear_bit(__I40E_REINIT_REQUESTED
, &pf
->state
);
5714 if (test_bit(__I40E_PF_RESET_REQUESTED
, &pf
->state
)) {
5715 reset_flags
|= (1 << __I40E_PF_RESET_REQUESTED
);
5716 clear_bit(__I40E_PF_RESET_REQUESTED
, &pf
->state
);
5718 if (test_bit(__I40E_CORE_RESET_REQUESTED
, &pf
->state
)) {
5719 reset_flags
|= (1 << __I40E_CORE_RESET_REQUESTED
);
5720 clear_bit(__I40E_CORE_RESET_REQUESTED
, &pf
->state
);
5722 if (test_bit(__I40E_GLOBAL_RESET_REQUESTED
, &pf
->state
)) {
5723 reset_flags
|= (1 << __I40E_GLOBAL_RESET_REQUESTED
);
5724 clear_bit(__I40E_GLOBAL_RESET_REQUESTED
, &pf
->state
);
5726 if (test_bit(__I40E_DOWN_REQUESTED
, &pf
->state
)) {
5727 reset_flags
|= (1 << __I40E_DOWN_REQUESTED
);
5728 clear_bit(__I40E_DOWN_REQUESTED
, &pf
->state
);
5731 /* If there's a recovery already waiting, it takes
5732 * precedence before starting a new reset sequence.
5734 if (test_bit(__I40E_RESET_INTR_RECEIVED
, &pf
->state
)) {
5735 i40e_handle_reset_warning(pf
);
5739 /* If we're already down or resetting, just bail */
5741 !test_bit(__I40E_DOWN
, &pf
->state
) &&
5742 !test_bit(__I40E_CONFIG_BUSY
, &pf
->state
))
5743 i40e_do_reset(pf
, reset_flags
);
5750 * i40e_handle_link_event - Handle link event
5751 * @pf: board private structure
5752 * @e: event info posted on ARQ
5754 static void i40e_handle_link_event(struct i40e_pf
*pf
,
5755 struct i40e_arq_event_info
*e
)
5757 struct i40e_hw
*hw
= &pf
->hw
;
5758 struct i40e_aqc_get_link_status
*status
=
5759 (struct i40e_aqc_get_link_status
*)&e
->desc
.params
.raw
;
5760 struct i40e_link_status
*hw_link_info
= &hw
->phy
.link_info
;
5762 /* save off old link status information */
5763 memcpy(&pf
->hw
.phy
.link_info_old
, hw_link_info
,
5764 sizeof(pf
->hw
.phy
.link_info_old
));
5766 /* Do a new status request to re-enable LSE reporting
5767 * and load new status information into the hw struct
5768 * This completely ignores any state information
5769 * in the ARQ event info, instead choosing to always
5770 * issue the AQ update link status command.
5772 i40e_link_event(pf
);
5774 /* check for unqualified module, if link is down */
5775 if ((status
->link_info
& I40E_AQ_MEDIA_AVAILABLE
) &&
5776 (!(status
->an_info
& I40E_AQ_QUALIFIED_MODULE
)) &&
5777 (!(status
->link_info
& I40E_AQ_LINK_UP
)))
5778 dev_err(&pf
->pdev
->dev
,
5779 "The driver failed to link because an unqualified module was detected.\n");
5783 * i40e_clean_adminq_subtask - Clean the AdminQ rings
5784 * @pf: board private structure
5786 static void i40e_clean_adminq_subtask(struct i40e_pf
*pf
)
5788 struct i40e_arq_event_info event
;
5789 struct i40e_hw
*hw
= &pf
->hw
;
5796 /* Do not run clean AQ when PF reset fails */
5797 if (test_bit(__I40E_RESET_FAILED
, &pf
->state
))
5800 /* check for error indications */
5801 val
= rd32(&pf
->hw
, pf
->hw
.aq
.arq
.len
);
5803 if (val
& I40E_PF_ARQLEN_ARQVFE_MASK
) {
5804 dev_info(&pf
->pdev
->dev
, "ARQ VF Error detected\n");
5805 val
&= ~I40E_PF_ARQLEN_ARQVFE_MASK
;
5807 if (val
& I40E_PF_ARQLEN_ARQOVFL_MASK
) {
5808 dev_info(&pf
->pdev
->dev
, "ARQ Overflow Error detected\n");
5809 val
&= ~I40E_PF_ARQLEN_ARQOVFL_MASK
;
5811 if (val
& I40E_PF_ARQLEN_ARQCRIT_MASK
) {
5812 dev_info(&pf
->pdev
->dev
, "ARQ Critical Error detected\n");
5813 val
&= ~I40E_PF_ARQLEN_ARQCRIT_MASK
;
5816 wr32(&pf
->hw
, pf
->hw
.aq
.arq
.len
, val
);
5818 val
= rd32(&pf
->hw
, pf
->hw
.aq
.asq
.len
);
5820 if (val
& I40E_PF_ATQLEN_ATQVFE_MASK
) {
5821 dev_info(&pf
->pdev
->dev
, "ASQ VF Error detected\n");
5822 val
&= ~I40E_PF_ATQLEN_ATQVFE_MASK
;
5824 if (val
& I40E_PF_ATQLEN_ATQOVFL_MASK
) {
5825 dev_info(&pf
->pdev
->dev
, "ASQ Overflow Error detected\n");
5826 val
&= ~I40E_PF_ATQLEN_ATQOVFL_MASK
;
5828 if (val
& I40E_PF_ATQLEN_ATQCRIT_MASK
) {
5829 dev_info(&pf
->pdev
->dev
, "ASQ Critical Error detected\n");
5830 val
&= ~I40E_PF_ATQLEN_ATQCRIT_MASK
;
5833 wr32(&pf
->hw
, pf
->hw
.aq
.asq
.len
, val
);
5835 event
.buf_len
= I40E_MAX_AQ_BUF_SIZE
;
5836 event
.msg_buf
= kzalloc(event
.buf_len
, GFP_KERNEL
);
5841 ret
= i40e_clean_arq_element(hw
, &event
, &pending
);
5842 if (ret
== I40E_ERR_ADMIN_QUEUE_NO_WORK
)
5845 dev_info(&pf
->pdev
->dev
, "ARQ event error %d\n", ret
);
5849 opcode
= le16_to_cpu(event
.desc
.opcode
);
5852 case i40e_aqc_opc_get_link_status
:
5853 i40e_handle_link_event(pf
, &event
);
5855 case i40e_aqc_opc_send_msg_to_pf
:
5856 ret
= i40e_vc_process_vf_msg(pf
,
5857 le16_to_cpu(event
.desc
.retval
),
5858 le32_to_cpu(event
.desc
.cookie_high
),
5859 le32_to_cpu(event
.desc
.cookie_low
),
5863 case i40e_aqc_opc_lldp_update_mib
:
5864 dev_dbg(&pf
->pdev
->dev
, "ARQ: Update LLDP MIB event received\n");
5865 #ifdef CONFIG_I40E_DCB
5867 ret
= i40e_handle_lldp_event(pf
, &event
);
5869 #endif /* CONFIG_I40E_DCB */
5871 case i40e_aqc_opc_event_lan_overflow
:
5872 dev_dbg(&pf
->pdev
->dev
, "ARQ LAN queue overflow event received\n");
5873 i40e_handle_lan_overflow_event(pf
, &event
);
5875 case i40e_aqc_opc_send_msg_to_peer
:
5876 dev_info(&pf
->pdev
->dev
, "ARQ: Msg from other pf\n");
5879 dev_info(&pf
->pdev
->dev
,
5880 "ARQ Error: Unknown event 0x%04x received\n",
5884 } while (pending
&& (i
++ < pf
->adminq_work_limit
));
5886 clear_bit(__I40E_ADMINQ_EVENT_PENDING
, &pf
->state
);
5887 /* re-enable Admin queue interrupt cause */
5888 val
= rd32(hw
, I40E_PFINT_ICR0_ENA
);
5889 val
|= I40E_PFINT_ICR0_ENA_ADMINQ_MASK
;
5890 wr32(hw
, I40E_PFINT_ICR0_ENA
, val
);
5893 kfree(event
.msg_buf
);
5897 * i40e_verify_eeprom - make sure eeprom is good to use
5898 * @pf: board private structure
5900 static void i40e_verify_eeprom(struct i40e_pf
*pf
)
5904 err
= i40e_diag_eeprom_test(&pf
->hw
);
5906 /* retry in case of garbage read */
5907 err
= i40e_diag_eeprom_test(&pf
->hw
);
5909 dev_info(&pf
->pdev
->dev
, "eeprom check failed (%d), Tx/Rx traffic disabled\n",
5911 set_bit(__I40E_BAD_EEPROM
, &pf
->state
);
5915 if (!err
&& test_bit(__I40E_BAD_EEPROM
, &pf
->state
)) {
5916 dev_info(&pf
->pdev
->dev
, "eeprom check passed, Tx/Rx traffic enabled\n");
5917 clear_bit(__I40E_BAD_EEPROM
, &pf
->state
);
5922 * i40e_reconstitute_veb - rebuild the VEB and anything connected to it
5923 * @veb: pointer to the VEB instance
5925 * This is a recursive function that first builds the attached VSIs then
5926 * recurses in to build the next layer of VEB. We track the connections
5927 * through our own index numbers because the seid's from the HW could
5928 * change across the reset.
5930 static int i40e_reconstitute_veb(struct i40e_veb
*veb
)
5932 struct i40e_vsi
*ctl_vsi
= NULL
;
5933 struct i40e_pf
*pf
= veb
->pf
;
5937 /* build VSI that owns this VEB, temporarily attached to base VEB */
5938 for (v
= 0; v
< pf
->num_alloc_vsi
&& !ctl_vsi
; v
++) {
5940 pf
->vsi
[v
]->veb_idx
== veb
->idx
&&
5941 pf
->vsi
[v
]->flags
& I40E_VSI_FLAG_VEB_OWNER
) {
5942 ctl_vsi
= pf
->vsi
[v
];
5947 dev_info(&pf
->pdev
->dev
,
5948 "missing owner VSI for veb_idx %d\n", veb
->idx
);
5950 goto end_reconstitute
;
5952 if (ctl_vsi
!= pf
->vsi
[pf
->lan_vsi
])
5953 ctl_vsi
->uplink_seid
= pf
->vsi
[pf
->lan_vsi
]->uplink_seid
;
5954 ret
= i40e_add_vsi(ctl_vsi
);
5956 dev_info(&pf
->pdev
->dev
,
5957 "rebuild of owner VSI failed: %d\n", ret
);
5958 goto end_reconstitute
;
5960 i40e_vsi_reset_stats(ctl_vsi
);
5962 /* create the VEB in the switch and move the VSI onto the VEB */
5963 ret
= i40e_add_veb(veb
, ctl_vsi
);
5965 goto end_reconstitute
;
5967 /* Enable LB mode for the main VSI now that it is on a VEB */
5968 i40e_enable_pf_switch_lb(pf
);
5970 /* create the remaining VSIs attached to this VEB */
5971 for (v
= 0; v
< pf
->num_alloc_vsi
; v
++) {
5972 if (!pf
->vsi
[v
] || pf
->vsi
[v
] == ctl_vsi
)
5975 if (pf
->vsi
[v
]->veb_idx
== veb
->idx
) {
5976 struct i40e_vsi
*vsi
= pf
->vsi
[v
];
5977 vsi
->uplink_seid
= veb
->seid
;
5978 ret
= i40e_add_vsi(vsi
);
5980 dev_info(&pf
->pdev
->dev
,
5981 "rebuild of vsi_idx %d failed: %d\n",
5983 goto end_reconstitute
;
5985 i40e_vsi_reset_stats(vsi
);
5989 /* create any VEBs attached to this VEB - RECURSION */
5990 for (veb_idx
= 0; veb_idx
< I40E_MAX_VEB
; veb_idx
++) {
5991 if (pf
->veb
[veb_idx
] && pf
->veb
[veb_idx
]->veb_idx
== veb
->idx
) {
5992 pf
->veb
[veb_idx
]->uplink_seid
= veb
->seid
;
5993 ret
= i40e_reconstitute_veb(pf
->veb
[veb_idx
]);
6004 * i40e_get_capabilities - get info about the HW
6005 * @pf: the PF struct
6007 static int i40e_get_capabilities(struct i40e_pf
*pf
)
6009 struct i40e_aqc_list_capabilities_element_resp
*cap_buf
;
6014 buf_len
= 40 * sizeof(struct i40e_aqc_list_capabilities_element_resp
);
6016 cap_buf
= kzalloc(buf_len
, GFP_KERNEL
);
6020 /* this loads the data into the hw struct for us */
6021 err
= i40e_aq_discover_capabilities(&pf
->hw
, cap_buf
, buf_len
,
6023 i40e_aqc_opc_list_func_capabilities
,
6025 /* data loaded, buffer no longer needed */
6028 if (pf
->hw
.aq
.asq_last_status
== I40E_AQ_RC_ENOMEM
) {
6029 /* retry with a larger buffer */
6030 buf_len
= data_size
;
6031 } else if (pf
->hw
.aq
.asq_last_status
!= I40E_AQ_RC_OK
) {
6032 dev_info(&pf
->pdev
->dev
,
6033 "capability discovery failed: aq=%d\n",
6034 pf
->hw
.aq
.asq_last_status
);
6039 if (((pf
->hw
.aq
.fw_maj_ver
== 2) && (pf
->hw
.aq
.fw_min_ver
< 22)) ||
6040 (pf
->hw
.aq
.fw_maj_ver
< 2)) {
6041 pf
->hw
.func_caps
.num_msix_vectors
++;
6042 pf
->hw
.func_caps
.num_msix_vectors_vf
++;
6045 if (pf
->hw
.debug_mask
& I40E_DEBUG_USER
)
6046 dev_info(&pf
->pdev
->dev
,
6047 "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",
6048 pf
->hw
.pf_id
, pf
->hw
.func_caps
.num_vfs
,
6049 pf
->hw
.func_caps
.num_msix_vectors
,
6050 pf
->hw
.func_caps
.num_msix_vectors_vf
,
6051 pf
->hw
.func_caps
.fd_filters_guaranteed
,
6052 pf
->hw
.func_caps
.fd_filters_best_effort
,
6053 pf
->hw
.func_caps
.num_tx_qp
,
6054 pf
->hw
.func_caps
.num_vsis
);
6056 #define DEF_NUM_VSI (1 + (pf->hw.func_caps.fcoe ? 1 : 0) \
6057 + pf->hw.func_caps.num_vfs)
6058 if (pf
->hw
.revision_id
== 0 && (DEF_NUM_VSI
> pf
->hw
.func_caps
.num_vsis
)) {
6059 dev_info(&pf
->pdev
->dev
,
6060 "got num_vsis %d, setting num_vsis to %d\n",
6061 pf
->hw
.func_caps
.num_vsis
, DEF_NUM_VSI
);
6062 pf
->hw
.func_caps
.num_vsis
= DEF_NUM_VSI
;
6068 static int i40e_vsi_clear(struct i40e_vsi
*vsi
);
6071 * i40e_fdir_sb_setup - initialize the Flow Director resources for Sideband
6072 * @pf: board private structure
6074 static void i40e_fdir_sb_setup(struct i40e_pf
*pf
)
6076 struct i40e_vsi
*vsi
;
6079 /* quick workaround for an NVM issue that leaves a critical register
6082 if (!rd32(&pf
->hw
, I40E_GLQF_HKEY(0))) {
6083 static const u32 hkey
[] = {
6084 0xe640d33f, 0xcdfe98ab, 0x73fa7161, 0x0d7a7d36,
6085 0xeacb7d61, 0xaa4f05b6, 0x9c5c89ed, 0xfc425ddb,
6086 0xa4654832, 0xfc7461d4, 0x8f827619, 0xf5c63c21,
6089 for (i
= 0; i
<= I40E_GLQF_HKEY_MAX_INDEX
; i
++)
6090 wr32(&pf
->hw
, I40E_GLQF_HKEY(i
), hkey
[i
]);
6093 if (!(pf
->flags
& I40E_FLAG_FD_SB_ENABLED
))
6096 /* find existing VSI and see if it needs configuring */
6098 for (i
= 0; i
< pf
->num_alloc_vsi
; i
++) {
6099 if (pf
->vsi
[i
] && pf
->vsi
[i
]->type
== I40E_VSI_FDIR
) {
6105 /* create a new VSI if none exists */
6107 vsi
= i40e_vsi_setup(pf
, I40E_VSI_FDIR
,
6108 pf
->vsi
[pf
->lan_vsi
]->seid
, 0);
6110 dev_info(&pf
->pdev
->dev
, "Couldn't create FDir VSI\n");
6111 pf
->flags
&= ~I40E_FLAG_FD_SB_ENABLED
;
6116 i40e_vsi_setup_irqhandler(vsi
, i40e_fdir_clean_ring
);
6120 * i40e_fdir_teardown - release the Flow Director resources
6121 * @pf: board private structure
6123 static void i40e_fdir_teardown(struct i40e_pf
*pf
)
6127 i40e_fdir_filter_exit(pf
);
6128 for (i
= 0; i
< pf
->num_alloc_vsi
; i
++) {
6129 if (pf
->vsi
[i
] && pf
->vsi
[i
]->type
== I40E_VSI_FDIR
) {
6130 i40e_vsi_release(pf
->vsi
[i
]);
6137 * i40e_prep_for_reset - prep for the core to reset
6138 * @pf: board private structure
6140 * Close up the VFs and other things in prep for pf Reset.
6142 static void i40e_prep_for_reset(struct i40e_pf
*pf
)
6144 struct i40e_hw
*hw
= &pf
->hw
;
6145 i40e_status ret
= 0;
6148 clear_bit(__I40E_RESET_INTR_RECEIVED
, &pf
->state
);
6149 if (test_and_set_bit(__I40E_RESET_RECOVERY_PENDING
, &pf
->state
))
6152 dev_dbg(&pf
->pdev
->dev
, "Tearing down internal switch for reset\n");
6154 /* quiesce the VSIs and their queues that are not already DOWN */
6155 i40e_pf_quiesce_all_vsi(pf
);
6157 for (v
= 0; v
< pf
->num_alloc_vsi
; v
++) {
6159 pf
->vsi
[v
]->seid
= 0;
6162 i40e_shutdown_adminq(&pf
->hw
);
6164 /* call shutdown HMC */
6165 if (hw
->hmc
.hmc_obj
) {
6166 ret
= i40e_shutdown_lan_hmc(hw
);
6168 dev_warn(&pf
->pdev
->dev
,
6169 "shutdown_lan_hmc failed: %d\n", ret
);
6174 * i40e_send_version - update firmware with driver version
6177 static void i40e_send_version(struct i40e_pf
*pf
)
6179 struct i40e_driver_version dv
;
6181 dv
.major_version
= DRV_VERSION_MAJOR
;
6182 dv
.minor_version
= DRV_VERSION_MINOR
;
6183 dv
.build_version
= DRV_VERSION_BUILD
;
6184 dv
.subbuild_version
= 0;
6185 strlcpy(dv
.driver_string
, DRV_VERSION
, sizeof(dv
.driver_string
));
6186 i40e_aq_send_driver_version(&pf
->hw
, &dv
, NULL
);
6190 * i40e_reset_and_rebuild - reset and rebuild using a saved config
6191 * @pf: board private structure
6192 * @reinit: if the Main VSI needs to re-initialized.
6194 static void i40e_reset_and_rebuild(struct i40e_pf
*pf
, bool reinit
)
6196 struct i40e_hw
*hw
= &pf
->hw
;
6197 u8 set_fc_aq_fail
= 0;
6201 /* Now we wait for GRST to settle out.
6202 * We don't have to delete the VEBs or VSIs from the hw switch
6203 * because the reset will make them disappear.
6205 ret
= i40e_pf_reset(hw
);
6207 dev_info(&pf
->pdev
->dev
, "PF reset failed, %d\n", ret
);
6208 set_bit(__I40E_RESET_FAILED
, &pf
->state
);
6209 goto clear_recovery
;
6213 if (test_bit(__I40E_DOWN
, &pf
->state
))
6214 goto clear_recovery
;
6215 dev_dbg(&pf
->pdev
->dev
, "Rebuilding internal switch\n");
6217 /* rebuild the basics for the AdminQ, HMC, and initial HW switch */
6218 ret
= i40e_init_adminq(&pf
->hw
);
6220 dev_info(&pf
->pdev
->dev
, "Rebuild AdminQ failed, %d\n", ret
);
6221 goto clear_recovery
;
6224 /* re-verify the eeprom if we just had an EMP reset */
6225 if (test_bit(__I40E_EMP_RESET_REQUESTED
, &pf
->state
)) {
6226 clear_bit(__I40E_EMP_RESET_REQUESTED
, &pf
->state
);
6227 i40e_verify_eeprom(pf
);
6230 i40e_clear_pxe_mode(hw
);
6231 ret
= i40e_get_capabilities(pf
);
6233 dev_info(&pf
->pdev
->dev
, "i40e_get_capabilities failed, %d\n",
6235 goto end_core_reset
;
6238 ret
= i40e_init_lan_hmc(hw
, hw
->func_caps
.num_tx_qp
,
6239 hw
->func_caps
.num_rx_qp
,
6240 pf
->fcoe_hmc_cntx_num
, pf
->fcoe_hmc_filt_num
);
6242 dev_info(&pf
->pdev
->dev
, "init_lan_hmc failed: %d\n", ret
);
6243 goto end_core_reset
;
6245 ret
= i40e_configure_lan_hmc(hw
, I40E_HMC_MODEL_DIRECT_ONLY
);
6247 dev_info(&pf
->pdev
->dev
, "configure_lan_hmc failed: %d\n", ret
);
6248 goto end_core_reset
;
6251 #ifdef CONFIG_I40E_DCB
6252 ret
= i40e_init_pf_dcb(pf
);
6254 dev_info(&pf
->pdev
->dev
, "DCB init failed %d, disabled\n", ret
);
6255 pf
->flags
&= ~I40E_FLAG_DCB_CAPABLE
;
6256 /* Continue without DCB enabled */
6258 #endif /* CONFIG_I40E_DCB */
6260 ret
= i40e_init_pf_fcoe(pf
);
6262 dev_info(&pf
->pdev
->dev
, "init_pf_fcoe failed: %d\n", ret
);
6265 /* do basic switch setup */
6266 ret
= i40e_setup_pf_switch(pf
, reinit
);
6268 goto end_core_reset
;
6270 /* driver is only interested in link up/down and module qualification
6271 * reports from firmware
6273 ret
= i40e_aq_set_phy_int_mask(&pf
->hw
,
6274 I40E_AQ_EVENT_LINK_UPDOWN
|
6275 I40E_AQ_EVENT_MODULE_QUAL_FAIL
, NULL
);
6277 dev_info(&pf
->pdev
->dev
, "set phy mask fail, aq_err %d\n", ret
);
6279 /* make sure our flow control settings are restored */
6280 ret
= i40e_set_fc(&pf
->hw
, &set_fc_aq_fail
, true);
6282 dev_info(&pf
->pdev
->dev
, "set fc fail, aq_err %d\n", ret
);
6284 /* Rebuild the VSIs and VEBs that existed before reset.
6285 * They are still in our local switch element arrays, so only
6286 * need to rebuild the switch model in the HW.
6288 * If there were VEBs but the reconstitution failed, we'll try
6289 * try to recover minimal use by getting the basic PF VSI working.
6291 if (pf
->vsi
[pf
->lan_vsi
]->uplink_seid
!= pf
->mac_seid
) {
6292 dev_dbg(&pf
->pdev
->dev
, "attempting to rebuild switch\n");
6293 /* find the one VEB connected to the MAC, and find orphans */
6294 for (v
= 0; v
< I40E_MAX_VEB
; v
++) {
6298 if (pf
->veb
[v
]->uplink_seid
== pf
->mac_seid
||
6299 pf
->veb
[v
]->uplink_seid
== 0) {
6300 ret
= i40e_reconstitute_veb(pf
->veb
[v
]);
6305 /* If Main VEB failed, we're in deep doodoo,
6306 * so give up rebuilding the switch and set up
6307 * for minimal rebuild of PF VSI.
6308 * If orphan failed, we'll report the error
6309 * but try to keep going.
6311 if (pf
->veb
[v
]->uplink_seid
== pf
->mac_seid
) {
6312 dev_info(&pf
->pdev
->dev
,
6313 "rebuild of switch failed: %d, will try to set up simple PF connection\n",
6315 pf
->vsi
[pf
->lan_vsi
]->uplink_seid
6318 } else if (pf
->veb
[v
]->uplink_seid
== 0) {
6319 dev_info(&pf
->pdev
->dev
,
6320 "rebuild of orphan VEB failed: %d\n",
6327 if (pf
->vsi
[pf
->lan_vsi
]->uplink_seid
== pf
->mac_seid
) {
6328 dev_dbg(&pf
->pdev
->dev
, "attempting to rebuild PF VSI\n");
6329 /* no VEB, so rebuild only the Main VSI */
6330 ret
= i40e_add_vsi(pf
->vsi
[pf
->lan_vsi
]);
6332 dev_info(&pf
->pdev
->dev
,
6333 "rebuild of Main VSI failed: %d\n", ret
);
6334 goto end_core_reset
;
6339 ret
= i40e_aq_set_link_restart_an(&pf
->hw
, true, NULL
);
6341 dev_info(&pf
->pdev
->dev
, "link restart failed, aq_err=%d\n",
6342 pf
->hw
.aq
.asq_last_status
);
6345 /* reinit the misc interrupt */
6346 if (pf
->flags
& I40E_FLAG_MSIX_ENABLED
)
6347 ret
= i40e_setup_misc_vector(pf
);
6349 /* restart the VSIs that were rebuilt and running before the reset */
6350 i40e_pf_unquiesce_all_vsi(pf
);
6352 if (pf
->num_alloc_vfs
) {
6353 for (v
= 0; v
< pf
->num_alloc_vfs
; v
++)
6354 i40e_reset_vf(&pf
->vf
[v
], true);
6357 /* tell the firmware that we're starting */
6358 i40e_send_version(pf
);
6361 clear_bit(__I40E_RESET_FAILED
, &pf
->state
);
6363 clear_bit(__I40E_RESET_RECOVERY_PENDING
, &pf
->state
);
6367 * i40e_handle_reset_warning - prep for the pf to reset, reset and rebuild
6368 * @pf: board private structure
6370 * Close up the VFs and other things in prep for a Core Reset,
6371 * then get ready to rebuild the world.
6373 static void i40e_handle_reset_warning(struct i40e_pf
*pf
)
6375 i40e_prep_for_reset(pf
);
6376 i40e_reset_and_rebuild(pf
, false);
6380 * i40e_handle_mdd_event
6381 * @pf: pointer to the pf structure
6383 * Called from the MDD irq handler to identify possibly malicious vfs
6385 static void i40e_handle_mdd_event(struct i40e_pf
*pf
)
6387 struct i40e_hw
*hw
= &pf
->hw
;
6388 bool mdd_detected
= false;
6389 bool pf_mdd_detected
= false;
6394 if (!test_bit(__I40E_MDD_EVENT_PENDING
, &pf
->state
))
6397 /* find what triggered the MDD event */
6398 reg
= rd32(hw
, I40E_GL_MDET_TX
);
6399 if (reg
& I40E_GL_MDET_TX_VALID_MASK
) {
6400 u8 pf_num
= (reg
& I40E_GL_MDET_TX_PF_NUM_MASK
) >>
6401 I40E_GL_MDET_TX_PF_NUM_SHIFT
;
6402 u16 vf_num
= (reg
& I40E_GL_MDET_TX_VF_NUM_MASK
) >>
6403 I40E_GL_MDET_TX_VF_NUM_SHIFT
;
6404 u8 event
= (reg
& I40E_GL_MDET_TX_EVENT_MASK
) >>
6405 I40E_GL_MDET_TX_EVENT_SHIFT
;
6406 u16 queue
= ((reg
& I40E_GL_MDET_TX_QUEUE_MASK
) >>
6407 I40E_GL_MDET_TX_QUEUE_SHIFT
) -
6408 pf
->hw
.func_caps
.base_queue
;
6409 if (netif_msg_tx_err(pf
))
6410 dev_info(&pf
->pdev
->dev
, "Malicious Driver Detection event 0x%02x on TX queue %d pf number 0x%02x vf number 0x%02x\n",
6411 event
, queue
, pf_num
, vf_num
);
6412 wr32(hw
, I40E_GL_MDET_TX
, 0xffffffff);
6413 mdd_detected
= true;
6415 reg
= rd32(hw
, I40E_GL_MDET_RX
);
6416 if (reg
& I40E_GL_MDET_RX_VALID_MASK
) {
6417 u8 func
= (reg
& I40E_GL_MDET_RX_FUNCTION_MASK
) >>
6418 I40E_GL_MDET_RX_FUNCTION_SHIFT
;
6419 u8 event
= (reg
& I40E_GL_MDET_RX_EVENT_MASK
) >>
6420 I40E_GL_MDET_RX_EVENT_SHIFT
;
6421 u16 queue
= ((reg
& I40E_GL_MDET_RX_QUEUE_MASK
) >>
6422 I40E_GL_MDET_RX_QUEUE_SHIFT
) -
6423 pf
->hw
.func_caps
.base_queue
;
6424 if (netif_msg_rx_err(pf
))
6425 dev_info(&pf
->pdev
->dev
, "Malicious Driver Detection event 0x%02x on RX queue %d of function 0x%02x\n",
6426 event
, queue
, func
);
6427 wr32(hw
, I40E_GL_MDET_RX
, 0xffffffff);
6428 mdd_detected
= true;
6432 reg
= rd32(hw
, I40E_PF_MDET_TX
);
6433 if (reg
& I40E_PF_MDET_TX_VALID_MASK
) {
6434 wr32(hw
, I40E_PF_MDET_TX
, 0xFFFF);
6435 dev_info(&pf
->pdev
->dev
, "TX driver issue detected, PF reset issued\n");
6436 pf_mdd_detected
= true;
6438 reg
= rd32(hw
, I40E_PF_MDET_RX
);
6439 if (reg
& I40E_PF_MDET_RX_VALID_MASK
) {
6440 wr32(hw
, I40E_PF_MDET_RX
, 0xFFFF);
6441 dev_info(&pf
->pdev
->dev
, "RX driver issue detected, PF reset issued\n");
6442 pf_mdd_detected
= true;
6444 /* Queue belongs to the PF, initiate a reset */
6445 if (pf_mdd_detected
) {
6446 set_bit(__I40E_PF_RESET_REQUESTED
, &pf
->state
);
6447 i40e_service_event_schedule(pf
);
6451 /* see if one of the VFs needs its hand slapped */
6452 for (i
= 0; i
< pf
->num_alloc_vfs
&& mdd_detected
; i
++) {
6454 reg
= rd32(hw
, I40E_VP_MDET_TX(i
));
6455 if (reg
& I40E_VP_MDET_TX_VALID_MASK
) {
6456 wr32(hw
, I40E_VP_MDET_TX(i
), 0xFFFF);
6457 vf
->num_mdd_events
++;
6458 dev_info(&pf
->pdev
->dev
, "TX driver issue detected on VF %d\n",
6462 reg
= rd32(hw
, I40E_VP_MDET_RX(i
));
6463 if (reg
& I40E_VP_MDET_RX_VALID_MASK
) {
6464 wr32(hw
, I40E_VP_MDET_RX(i
), 0xFFFF);
6465 vf
->num_mdd_events
++;
6466 dev_info(&pf
->pdev
->dev
, "RX driver issue detected on VF %d\n",
6470 if (vf
->num_mdd_events
> I40E_DEFAULT_NUM_MDD_EVENTS_ALLOWED
) {
6471 dev_info(&pf
->pdev
->dev
,
6472 "Too many MDD events on VF %d, disabled\n", i
);
6473 dev_info(&pf
->pdev
->dev
,
6474 "Use PF Control I/F to re-enable the VF\n");
6475 set_bit(I40E_VF_STAT_DISABLED
, &vf
->vf_states
);
6479 /* re-enable mdd interrupt cause */
6480 clear_bit(__I40E_MDD_EVENT_PENDING
, &pf
->state
);
6481 reg
= rd32(hw
, I40E_PFINT_ICR0_ENA
);
6482 reg
|= I40E_PFINT_ICR0_ENA_MAL_DETECT_MASK
;
6483 wr32(hw
, I40E_PFINT_ICR0_ENA
, reg
);
6487 #ifdef CONFIG_I40E_VXLAN
6489 * i40e_sync_vxlan_filters_subtask - Sync the VSI filter list with HW
6490 * @pf: board private structure
6492 static void i40e_sync_vxlan_filters_subtask(struct i40e_pf
*pf
)
6494 struct i40e_hw
*hw
= &pf
->hw
;
6500 if (!(pf
->flags
& I40E_FLAG_VXLAN_FILTER_SYNC
))
6503 pf
->flags
&= ~I40E_FLAG_VXLAN_FILTER_SYNC
;
6505 for (i
= 0; i
< I40E_MAX_PF_UDP_OFFLOAD_PORTS
; i
++) {
6506 if (pf
->pending_vxlan_bitmap
& (1 << i
)) {
6507 pf
->pending_vxlan_bitmap
&= ~(1 << i
);
6508 port
= pf
->vxlan_ports
[i
];
6510 i40e_aq_add_udp_tunnel(hw
, ntohs(port
),
6511 I40E_AQC_TUNNEL_TYPE_VXLAN
,
6512 &filter_index
, NULL
)
6513 : i40e_aq_del_udp_tunnel(hw
, i
, NULL
);
6516 dev_info(&pf
->pdev
->dev
, "Failed to execute AQ command for %s port %d with index %d\n",
6517 port
? "adding" : "deleting",
6518 ntohs(port
), port
? i
: i
);
6520 pf
->vxlan_ports
[i
] = 0;
6522 dev_info(&pf
->pdev
->dev
, "%s port %d with AQ command with index %d\n",
6523 port
? "Added" : "Deleted",
6524 ntohs(port
), port
? i
: filter_index
);
6532 * i40e_service_task - Run the driver's async subtasks
6533 * @work: pointer to work_struct containing our data
6535 static void i40e_service_task(struct work_struct
*work
)
6537 struct i40e_pf
*pf
= container_of(work
,
6540 unsigned long start_time
= jiffies
;
6542 /* don't bother with service tasks if a reset is in progress */
6543 if (test_bit(__I40E_RESET_RECOVERY_PENDING
, &pf
->state
)) {
6544 i40e_service_event_complete(pf
);
6548 i40e_reset_subtask(pf
);
6549 i40e_handle_mdd_event(pf
);
6550 i40e_vc_process_vflr_event(pf
);
6551 i40e_watchdog_subtask(pf
);
6552 i40e_fdir_reinit_subtask(pf
);
6553 i40e_sync_filters_subtask(pf
);
6554 #ifdef CONFIG_I40E_VXLAN
6555 i40e_sync_vxlan_filters_subtask(pf
);
6557 i40e_clean_adminq_subtask(pf
);
6559 i40e_service_event_complete(pf
);
6561 /* If the tasks have taken longer than one timer cycle or there
6562 * is more work to be done, reschedule the service task now
6563 * rather than wait for the timer to tick again.
6565 if (time_after(jiffies
, (start_time
+ pf
->service_timer_period
)) ||
6566 test_bit(__I40E_ADMINQ_EVENT_PENDING
, &pf
->state
) ||
6567 test_bit(__I40E_MDD_EVENT_PENDING
, &pf
->state
) ||
6568 test_bit(__I40E_VFLR_EVENT_PENDING
, &pf
->state
))
6569 i40e_service_event_schedule(pf
);
6573 * i40e_service_timer - timer callback
6574 * @data: pointer to PF struct
6576 static void i40e_service_timer(unsigned long data
)
6578 struct i40e_pf
*pf
= (struct i40e_pf
*)data
;
6580 mod_timer(&pf
->service_timer
,
6581 round_jiffies(jiffies
+ pf
->service_timer_period
));
6582 i40e_service_event_schedule(pf
);
6586 * i40e_set_num_rings_in_vsi - Determine number of rings in the VSI
6587 * @vsi: the VSI being configured
6589 static int i40e_set_num_rings_in_vsi(struct i40e_vsi
*vsi
)
6591 struct i40e_pf
*pf
= vsi
->back
;
6593 switch (vsi
->type
) {
6595 vsi
->alloc_queue_pairs
= pf
->num_lan_qps
;
6596 vsi
->num_desc
= ALIGN(I40E_DEFAULT_NUM_DESCRIPTORS
,
6597 I40E_REQ_DESCRIPTOR_MULTIPLE
);
6598 if (pf
->flags
& I40E_FLAG_MSIX_ENABLED
)
6599 vsi
->num_q_vectors
= pf
->num_lan_msix
;
6601 vsi
->num_q_vectors
= 1;
6606 vsi
->alloc_queue_pairs
= 1;
6607 vsi
->num_desc
= ALIGN(I40E_FDIR_RING_COUNT
,
6608 I40E_REQ_DESCRIPTOR_MULTIPLE
);
6609 vsi
->num_q_vectors
= 1;
6612 case I40E_VSI_VMDQ2
:
6613 vsi
->alloc_queue_pairs
= pf
->num_vmdq_qps
;
6614 vsi
->num_desc
= ALIGN(I40E_DEFAULT_NUM_DESCRIPTORS
,
6615 I40E_REQ_DESCRIPTOR_MULTIPLE
);
6616 vsi
->num_q_vectors
= pf
->num_vmdq_msix
;
6619 case I40E_VSI_SRIOV
:
6620 vsi
->alloc_queue_pairs
= pf
->num_vf_qps
;
6621 vsi
->num_desc
= ALIGN(I40E_DEFAULT_NUM_DESCRIPTORS
,
6622 I40E_REQ_DESCRIPTOR_MULTIPLE
);
6627 vsi
->alloc_queue_pairs
= pf
->num_fcoe_qps
;
6628 vsi
->num_desc
= ALIGN(I40E_DEFAULT_NUM_DESCRIPTORS
,
6629 I40E_REQ_DESCRIPTOR_MULTIPLE
);
6630 vsi
->num_q_vectors
= pf
->num_fcoe_msix
;
6633 #endif /* I40E_FCOE */
6643 * i40e_vsi_alloc_arrays - Allocate queue and vector pointer arrays for the vsi
6644 * @type: VSI pointer
6645 * @alloc_qvectors: a bool to specify if q_vectors need to be allocated.
6647 * On error: returns error code (negative)
6648 * On success: returns 0
6650 static int i40e_vsi_alloc_arrays(struct i40e_vsi
*vsi
, bool alloc_qvectors
)
6655 /* allocate memory for both Tx and Rx ring pointers */
6656 size
= sizeof(struct i40e_ring
*) * vsi
->alloc_queue_pairs
* 2;
6657 vsi
->tx_rings
= kzalloc(size
, GFP_KERNEL
);
6660 vsi
->rx_rings
= &vsi
->tx_rings
[vsi
->alloc_queue_pairs
];
6662 if (alloc_qvectors
) {
6663 /* allocate memory for q_vector pointers */
6664 size
= sizeof(struct i40e_q_vector
*) * vsi
->num_q_vectors
;
6665 vsi
->q_vectors
= kzalloc(size
, GFP_KERNEL
);
6666 if (!vsi
->q_vectors
) {
6674 kfree(vsi
->tx_rings
);
6679 * i40e_vsi_mem_alloc - Allocates the next available struct vsi in the PF
6680 * @pf: board private structure
6681 * @type: type of VSI
6683 * On error: returns error code (negative)
6684 * On success: returns vsi index in PF (positive)
6686 static int i40e_vsi_mem_alloc(struct i40e_pf
*pf
, enum i40e_vsi_type type
)
6689 struct i40e_vsi
*vsi
;
6693 /* Need to protect the allocation of the VSIs at the PF level */
6694 mutex_lock(&pf
->switch_mutex
);
6696 /* VSI list may be fragmented if VSI creation/destruction has
6697 * been happening. We can afford to do a quick scan to look
6698 * for any free VSIs in the list.
6700 * find next empty vsi slot, looping back around if necessary
6703 while (i
< pf
->num_alloc_vsi
&& pf
->vsi
[i
])
6705 if (i
>= pf
->num_alloc_vsi
) {
6707 while (i
< pf
->next_vsi
&& pf
->vsi
[i
])
6711 if (i
< pf
->num_alloc_vsi
&& !pf
->vsi
[i
]) {
6712 vsi_idx
= i
; /* Found one! */
6715 goto unlock_pf
; /* out of VSI slots! */
6719 vsi
= kzalloc(sizeof(*vsi
), GFP_KERNEL
);
6726 set_bit(__I40E_DOWN
, &vsi
->state
);
6729 vsi
->rx_itr_setting
= pf
->rx_itr_default
;
6730 vsi
->tx_itr_setting
= pf
->tx_itr_default
;
6731 vsi
->netdev_registered
= false;
6732 vsi
->work_limit
= I40E_DEFAULT_IRQ_WORK
;
6733 INIT_LIST_HEAD(&vsi
->mac_filter_list
);
6734 vsi
->irqs_ready
= false;
6736 ret
= i40e_set_num_rings_in_vsi(vsi
);
6740 ret
= i40e_vsi_alloc_arrays(vsi
, true);
6744 /* Setup default MSIX irq handler for VSI */
6745 i40e_vsi_setup_irqhandler(vsi
, i40e_msix_clean_rings
);
6747 pf
->vsi
[vsi_idx
] = vsi
;
6752 pf
->next_vsi
= i
- 1;
6755 mutex_unlock(&pf
->switch_mutex
);
6760 * i40e_vsi_free_arrays - Free queue and vector pointer arrays for the VSI
6761 * @type: VSI pointer
6762 * @free_qvectors: a bool to specify if q_vectors need to be freed.
6764 * On error: returns error code (negative)
6765 * On success: returns 0
6767 static void i40e_vsi_free_arrays(struct i40e_vsi
*vsi
, bool free_qvectors
)
6769 /* free the ring and vector containers */
6770 if (free_qvectors
) {
6771 kfree(vsi
->q_vectors
);
6772 vsi
->q_vectors
= NULL
;
6774 kfree(vsi
->tx_rings
);
6775 vsi
->tx_rings
= NULL
;
6776 vsi
->rx_rings
= NULL
;
6780 * i40e_vsi_clear - Deallocate the VSI provided
6781 * @vsi: the VSI being un-configured
6783 static int i40e_vsi_clear(struct i40e_vsi
*vsi
)
6794 mutex_lock(&pf
->switch_mutex
);
6795 if (!pf
->vsi
[vsi
->idx
]) {
6796 dev_err(&pf
->pdev
->dev
, "pf->vsi[%d] is NULL, just free vsi[%d](%p,type %d)\n",
6797 vsi
->idx
, vsi
->idx
, vsi
, vsi
->type
);
6801 if (pf
->vsi
[vsi
->idx
] != vsi
) {
6802 dev_err(&pf
->pdev
->dev
,
6803 "pf->vsi[%d](%p, type %d) != vsi[%d](%p,type %d): no free!\n",
6804 pf
->vsi
[vsi
->idx
]->idx
,
6806 pf
->vsi
[vsi
->idx
]->type
,
6807 vsi
->idx
, vsi
, vsi
->type
);
6811 /* updates the pf for this cleared vsi */
6812 i40e_put_lump(pf
->qp_pile
, vsi
->base_queue
, vsi
->idx
);
6813 i40e_put_lump(pf
->irq_pile
, vsi
->base_vector
, vsi
->idx
);
6815 i40e_vsi_free_arrays(vsi
, true);
6817 pf
->vsi
[vsi
->idx
] = NULL
;
6818 if (vsi
->idx
< pf
->next_vsi
)
6819 pf
->next_vsi
= vsi
->idx
;
6822 mutex_unlock(&pf
->switch_mutex
);
6830 * i40e_vsi_clear_rings - Deallocates the Rx and Tx rings for the provided VSI
6831 * @vsi: the VSI being cleaned
6833 static void i40e_vsi_clear_rings(struct i40e_vsi
*vsi
)
6837 if (vsi
->tx_rings
&& vsi
->tx_rings
[0]) {
6838 for (i
= 0; i
< vsi
->alloc_queue_pairs
; i
++) {
6839 kfree_rcu(vsi
->tx_rings
[i
], rcu
);
6840 vsi
->tx_rings
[i
] = NULL
;
6841 vsi
->rx_rings
[i
] = NULL
;
6847 * i40e_alloc_rings - Allocates the Rx and Tx rings for the provided VSI
6848 * @vsi: the VSI being configured
6850 static int i40e_alloc_rings(struct i40e_vsi
*vsi
)
6852 struct i40e_ring
*tx_ring
, *rx_ring
;
6853 struct i40e_pf
*pf
= vsi
->back
;
6856 /* Set basic values in the rings to be used later during open() */
6857 for (i
= 0; i
< vsi
->alloc_queue_pairs
; i
++) {
6858 /* allocate space for both Tx and Rx in one shot */
6859 tx_ring
= kzalloc(sizeof(struct i40e_ring
) * 2, GFP_KERNEL
);
6863 tx_ring
->queue_index
= i
;
6864 tx_ring
->reg_idx
= vsi
->base_queue
+ i
;
6865 tx_ring
->ring_active
= false;
6867 tx_ring
->netdev
= vsi
->netdev
;
6868 tx_ring
->dev
= &pf
->pdev
->dev
;
6869 tx_ring
->count
= vsi
->num_desc
;
6871 tx_ring
->dcb_tc
= 0;
6872 vsi
->tx_rings
[i
] = tx_ring
;
6874 rx_ring
= &tx_ring
[1];
6875 rx_ring
->queue_index
= i
;
6876 rx_ring
->reg_idx
= vsi
->base_queue
+ i
;
6877 rx_ring
->ring_active
= false;
6879 rx_ring
->netdev
= vsi
->netdev
;
6880 rx_ring
->dev
= &pf
->pdev
->dev
;
6881 rx_ring
->count
= vsi
->num_desc
;
6883 rx_ring
->dcb_tc
= 0;
6884 if (pf
->flags
& I40E_FLAG_16BYTE_RX_DESC_ENABLED
)
6885 set_ring_16byte_desc_enabled(rx_ring
);
6887 clear_ring_16byte_desc_enabled(rx_ring
);
6888 vsi
->rx_rings
[i
] = rx_ring
;
6894 i40e_vsi_clear_rings(vsi
);
6899 * i40e_reserve_msix_vectors - Reserve MSI-X vectors in the kernel
6900 * @pf: board private structure
6901 * @vectors: the number of MSI-X vectors to request
6903 * Returns the number of vectors reserved, or error
6905 static int i40e_reserve_msix_vectors(struct i40e_pf
*pf
, int vectors
)
6907 vectors
= pci_enable_msix_range(pf
->pdev
, pf
->msix_entries
,
6908 I40E_MIN_MSIX
, vectors
);
6910 dev_info(&pf
->pdev
->dev
,
6911 "MSI-X vector reservation failed: %d\n", vectors
);
6919 * i40e_init_msix - Setup the MSIX capability
6920 * @pf: board private structure
6922 * Work with the OS to set up the MSIX vectors needed.
6924 * Returns 0 on success, negative on failure
6926 static int i40e_init_msix(struct i40e_pf
*pf
)
6928 i40e_status err
= 0;
6929 struct i40e_hw
*hw
= &pf
->hw
;
6934 if (!(pf
->flags
& I40E_FLAG_MSIX_ENABLED
))
6937 /* The number of vectors we'll request will be comprised of:
6938 * - Add 1 for "other" cause for Admin Queue events, etc.
6939 * - The number of LAN queue pairs
6940 * - Queues being used for RSS.
6941 * We don't need as many as max_rss_size vectors.
6942 * use rss_size instead in the calculation since that
6943 * is governed by number of cpus in the system.
6944 * - assumes symmetric Tx/Rx pairing
6945 * - The number of VMDq pairs
6947 * - The number of FCOE qps.
6949 * Once we count this up, try the request.
6951 * If we can't get what we want, we'll simplify to nearly nothing
6952 * and try again. If that still fails, we punt.
6954 pf
->num_lan_msix
= pf
->num_lan_qps
- (pf
->rss_size_max
- pf
->rss_size
);
6955 pf
->num_vmdq_msix
= pf
->num_vmdq_qps
;
6957 other_vecs
+= (pf
->num_vmdq_vsis
* pf
->num_vmdq_msix
);
6958 if (pf
->flags
& I40E_FLAG_FD_SB_ENABLED
)
6961 /* Scale down if necessary, and the rings will share vectors */
6962 pf
->num_lan_msix
= min_t(int, pf
->num_lan_msix
,
6963 (hw
->func_caps
.num_msix_vectors
- other_vecs
));
6964 v_budget
= pf
->num_lan_msix
+ other_vecs
;
6967 if (pf
->flags
& I40E_FLAG_FCOE_ENABLED
) {
6968 pf
->num_fcoe_msix
= pf
->num_fcoe_qps
;
6969 v_budget
+= pf
->num_fcoe_msix
;
6973 pf
->msix_entries
= kcalloc(v_budget
, sizeof(struct msix_entry
),
6975 if (!pf
->msix_entries
)
6978 for (i
= 0; i
< v_budget
; i
++)
6979 pf
->msix_entries
[i
].entry
= i
;
6980 vec
= i40e_reserve_msix_vectors(pf
, v_budget
);
6982 if (vec
!= v_budget
) {
6983 /* If we have limited resources, we will start with no vectors
6984 * for the special features and then allocate vectors to some
6985 * of these features based on the policy and at the end disable
6986 * the features that did not get any vectors.
6989 pf
->num_fcoe_qps
= 0;
6990 pf
->num_fcoe_msix
= 0;
6992 pf
->num_vmdq_msix
= 0;
6995 if (vec
< I40E_MIN_MSIX
) {
6996 pf
->flags
&= ~I40E_FLAG_MSIX_ENABLED
;
6997 kfree(pf
->msix_entries
);
6998 pf
->msix_entries
= NULL
;
7001 } else if (vec
== I40E_MIN_MSIX
) {
7002 /* Adjust for minimal MSIX use */
7003 pf
->num_vmdq_vsis
= 0;
7004 pf
->num_vmdq_qps
= 0;
7005 pf
->num_lan_qps
= 1;
7006 pf
->num_lan_msix
= 1;
7008 } else if (vec
!= v_budget
) {
7009 /* reserve the misc vector */
7012 /* Scale vector usage down */
7013 pf
->num_vmdq_msix
= 1; /* force VMDqs to only one vector */
7014 pf
->num_vmdq_vsis
= 1;
7016 /* partition out the remaining vectors */
7019 pf
->num_lan_msix
= 1;
7023 /* give one vector to FCoE */
7024 if (pf
->flags
& I40E_FLAG_FCOE_ENABLED
) {
7025 pf
->num_lan_msix
= 1;
7026 pf
->num_fcoe_msix
= 1;
7029 pf
->num_lan_msix
= 2;
7034 /* give one vector to FCoE */
7035 if (pf
->flags
& I40E_FLAG_FCOE_ENABLED
) {
7036 pf
->num_fcoe_msix
= 1;
7040 pf
->num_lan_msix
= min_t(int, (vec
/ 2),
7042 pf
->num_vmdq_vsis
= min_t(int, (vec
- pf
->num_lan_msix
),
7043 I40E_DEFAULT_NUM_VMDQ_VSI
);
7048 if ((pf
->flags
& I40E_FLAG_VMDQ_ENABLED
) &&
7049 (pf
->num_vmdq_msix
== 0)) {
7050 dev_info(&pf
->pdev
->dev
, "VMDq disabled, not enough MSI-X vectors\n");
7051 pf
->flags
&= ~I40E_FLAG_VMDQ_ENABLED
;
7055 if ((pf
->flags
& I40E_FLAG_FCOE_ENABLED
) && (pf
->num_fcoe_msix
== 0)) {
7056 dev_info(&pf
->pdev
->dev
, "FCOE disabled, not enough MSI-X vectors\n");
7057 pf
->flags
&= ~I40E_FLAG_FCOE_ENABLED
;
7064 * i40e_vsi_alloc_q_vector - Allocate memory for a single interrupt vector
7065 * @vsi: the VSI being configured
7066 * @v_idx: index of the vector in the vsi struct
7068 * We allocate one q_vector. If allocation fails we return -ENOMEM.
7070 static int i40e_vsi_alloc_q_vector(struct i40e_vsi
*vsi
, int v_idx
)
7072 struct i40e_q_vector
*q_vector
;
7074 /* allocate q_vector */
7075 q_vector
= kzalloc(sizeof(struct i40e_q_vector
), GFP_KERNEL
);
7079 q_vector
->vsi
= vsi
;
7080 q_vector
->v_idx
= v_idx
;
7081 cpumask_set_cpu(v_idx
, &q_vector
->affinity_mask
);
7083 netif_napi_add(vsi
->netdev
, &q_vector
->napi
,
7084 i40e_napi_poll
, NAPI_POLL_WEIGHT
);
7086 q_vector
->rx
.latency_range
= I40E_LOW_LATENCY
;
7087 q_vector
->tx
.latency_range
= I40E_LOW_LATENCY
;
7089 /* tie q_vector and vsi together */
7090 vsi
->q_vectors
[v_idx
] = q_vector
;
7096 * i40e_vsi_alloc_q_vectors - Allocate memory for interrupt vectors
7097 * @vsi: the VSI being configured
7099 * We allocate one q_vector per queue interrupt. If allocation fails we
7102 static int i40e_vsi_alloc_q_vectors(struct i40e_vsi
*vsi
)
7104 struct i40e_pf
*pf
= vsi
->back
;
7105 int v_idx
, num_q_vectors
;
7108 /* if not MSIX, give the one vector only to the LAN VSI */
7109 if (pf
->flags
& I40E_FLAG_MSIX_ENABLED
)
7110 num_q_vectors
= vsi
->num_q_vectors
;
7111 else if (vsi
== pf
->vsi
[pf
->lan_vsi
])
7116 for (v_idx
= 0; v_idx
< num_q_vectors
; v_idx
++) {
7117 err
= i40e_vsi_alloc_q_vector(vsi
, v_idx
);
7126 i40e_free_q_vector(vsi
, v_idx
);
7132 * i40e_init_interrupt_scheme - Determine proper interrupt scheme
7133 * @pf: board private structure to initialize
7135 static void i40e_init_interrupt_scheme(struct i40e_pf
*pf
)
7139 if (pf
->flags
& I40E_FLAG_MSIX_ENABLED
) {
7140 err
= i40e_init_msix(pf
);
7142 pf
->flags
&= ~(I40E_FLAG_MSIX_ENABLED
|
7144 I40E_FLAG_FCOE_ENABLED
|
7146 I40E_FLAG_RSS_ENABLED
|
7147 I40E_FLAG_DCB_CAPABLE
|
7148 I40E_FLAG_SRIOV_ENABLED
|
7149 I40E_FLAG_FD_SB_ENABLED
|
7150 I40E_FLAG_FD_ATR_ENABLED
|
7151 I40E_FLAG_VMDQ_ENABLED
);
7153 /* rework the queue expectations without MSIX */
7154 i40e_determine_queue_usage(pf
);
7158 if (!(pf
->flags
& I40E_FLAG_MSIX_ENABLED
) &&
7159 (pf
->flags
& I40E_FLAG_MSI_ENABLED
)) {
7160 dev_info(&pf
->pdev
->dev
, "MSI-X not available, trying MSI\n");
7161 err
= pci_enable_msi(pf
->pdev
);
7163 dev_info(&pf
->pdev
->dev
, "MSI init failed - %d\n", err
);
7164 pf
->flags
&= ~I40E_FLAG_MSI_ENABLED
;
7168 if (!(pf
->flags
& (I40E_FLAG_MSIX_ENABLED
| I40E_FLAG_MSI_ENABLED
)))
7169 dev_info(&pf
->pdev
->dev
, "MSI-X and MSI not available, falling back to Legacy IRQ\n");
7171 /* track first vector for misc interrupts */
7172 err
= i40e_get_lump(pf
, pf
->irq_pile
, 1, I40E_PILE_VALID_BIT
-1);
7176 * i40e_setup_misc_vector - Setup the misc vector to handle non queue events
7177 * @pf: board private structure
7179 * This sets up the handler for MSIX 0, which is used to manage the
7180 * non-queue interrupts, e.g. AdminQ and errors. This is not used
7181 * when in MSI or Legacy interrupt mode.
7183 static int i40e_setup_misc_vector(struct i40e_pf
*pf
)
7185 struct i40e_hw
*hw
= &pf
->hw
;
7188 /* Only request the irq if this is the first time through, and
7189 * not when we're rebuilding after a Reset
7191 if (!test_bit(__I40E_RESET_RECOVERY_PENDING
, &pf
->state
)) {
7192 err
= request_irq(pf
->msix_entries
[0].vector
,
7193 i40e_intr
, 0, pf
->int_name
, pf
);
7195 dev_info(&pf
->pdev
->dev
,
7196 "request_irq for %s failed: %d\n",
7202 i40e_enable_misc_int_causes(pf
);
7204 /* associate no queues to the misc vector */
7205 wr32(hw
, I40E_PFINT_LNKLST0
, I40E_QUEUE_END_OF_LIST
);
7206 wr32(hw
, I40E_PFINT_ITR0(I40E_RX_ITR
), I40E_ITR_8K
);
7210 i40e_irq_dynamic_enable_icr0(pf
);
7216 * i40e_config_rss - Prepare for RSS if used
7217 * @pf: board private structure
7219 static int i40e_config_rss(struct i40e_pf
*pf
)
7221 u32 rss_key
[I40E_PFQF_HKEY_MAX_INDEX
+ 1];
7222 struct i40e_hw
*hw
= &pf
->hw
;
7228 netdev_rss_key_fill(rss_key
, sizeof(rss_key
));
7229 for (i
= 0; i
<= I40E_PFQF_HKEY_MAX_INDEX
; i
++)
7230 wr32(hw
, I40E_PFQF_HKEY(i
), rss_key
[i
]);
7232 /* By default we enable TCP/UDP with IPv4/IPv6 ptypes */
7233 hena
= (u64
)rd32(hw
, I40E_PFQF_HENA(0)) |
7234 ((u64
)rd32(hw
, I40E_PFQF_HENA(1)) << 32);
7235 hena
|= I40E_DEFAULT_RSS_HENA
;
7236 wr32(hw
, I40E_PFQF_HENA(0), (u32
)hena
);
7237 wr32(hw
, I40E_PFQF_HENA(1), (u32
)(hena
>> 32));
7239 /* Check capability and Set table size and register per hw expectation*/
7240 reg_val
= rd32(hw
, I40E_PFQF_CTL_0
);
7241 if (hw
->func_caps
.rss_table_size
== 512) {
7242 reg_val
|= I40E_PFQF_CTL_0_HASHLUTSIZE_512
;
7243 pf
->rss_table_size
= 512;
7245 pf
->rss_table_size
= 128;
7246 reg_val
&= ~I40E_PFQF_CTL_0_HASHLUTSIZE_512
;
7248 wr32(hw
, I40E_PFQF_CTL_0
, reg_val
);
7250 /* Populate the LUT with max no. of queues in round robin fashion */
7251 for (i
= 0, j
= 0; i
< pf
->rss_table_size
; i
++, j
++) {
7253 /* The assumption is that lan qp count will be the highest
7254 * qp count for any PF VSI that needs RSS.
7255 * If multiple VSIs need RSS support, all the qp counts
7256 * for those VSIs should be a power of 2 for RSS to work.
7257 * If LAN VSI is the only consumer for RSS then this requirement
7260 if (j
== pf
->rss_size
)
7262 /* lut = 4-byte sliding window of 4 lut entries */
7263 lut
= (lut
<< 8) | (j
&
7264 ((0x1 << pf
->hw
.func_caps
.rss_table_entry_width
) - 1));
7265 /* On i = 3, we have 4 entries in lut; write to the register */
7267 wr32(hw
, I40E_PFQF_HLUT(i
>> 2), lut
);
7275 * i40e_reconfig_rss_queues - change number of queues for rss and rebuild
7276 * @pf: board private structure
7277 * @queue_count: the requested queue count for rss.
7279 * returns 0 if rss is not enabled, if enabled returns the final rss queue
7280 * count which may be different from the requested queue count.
7282 int i40e_reconfig_rss_queues(struct i40e_pf
*pf
, int queue_count
)
7284 if (!(pf
->flags
& I40E_FLAG_RSS_ENABLED
))
7287 queue_count
= min_t(int, queue_count
, pf
->rss_size_max
);
7289 if (queue_count
!= pf
->rss_size
) {
7290 i40e_prep_for_reset(pf
);
7292 pf
->rss_size
= queue_count
;
7294 i40e_reset_and_rebuild(pf
, true);
7295 i40e_config_rss(pf
);
7297 dev_info(&pf
->pdev
->dev
, "RSS count: %d\n", pf
->rss_size
);
7298 return pf
->rss_size
;
7302 * i40e_sw_init - Initialize general software structures (struct i40e_pf)
7303 * @pf: board private structure to initialize
7305 * i40e_sw_init initializes the Adapter private data structure.
7306 * Fields are initialized based on PCI device information and
7307 * OS network device settings (MTU size).
7309 static int i40e_sw_init(struct i40e_pf
*pf
)
7314 pf
->msg_enable
= netif_msg_init(I40E_DEFAULT_MSG_ENABLE
,
7315 (NETIF_MSG_DRV
|NETIF_MSG_PROBE
|NETIF_MSG_LINK
));
7316 pf
->hw
.debug_mask
= pf
->msg_enable
| I40E_DEBUG_DIAG
;
7317 if (debug
!= -1 && debug
!= I40E_DEFAULT_MSG_ENABLE
) {
7318 if (I40E_DEBUG_USER
& debug
)
7319 pf
->hw
.debug_mask
= debug
;
7320 pf
->msg_enable
= netif_msg_init((debug
& ~I40E_DEBUG_USER
),
7321 I40E_DEFAULT_MSG_ENABLE
);
7324 /* Set default capability flags */
7325 pf
->flags
= I40E_FLAG_RX_CSUM_ENABLED
|
7326 I40E_FLAG_MSI_ENABLED
|
7327 I40E_FLAG_MSIX_ENABLED
|
7328 I40E_FLAG_RX_1BUF_ENABLED
;
7330 /* Set default ITR */
7331 pf
->rx_itr_default
= I40E_ITR_DYNAMIC
| I40E_ITR_RX_DEF
;
7332 pf
->tx_itr_default
= I40E_ITR_DYNAMIC
| I40E_ITR_TX_DEF
;
7334 /* Depending on PF configurations, it is possible that the RSS
7335 * maximum might end up larger than the available queues
7337 pf
->rss_size_max
= 0x1 << pf
->hw
.func_caps
.rss_table_entry_width
;
7339 pf
->rss_size_max
= min_t(int, pf
->rss_size_max
,
7340 pf
->hw
.func_caps
.num_tx_qp
);
7341 if (pf
->hw
.func_caps
.rss
) {
7342 pf
->flags
|= I40E_FLAG_RSS_ENABLED
;
7343 pf
->rss_size
= min_t(int, pf
->rss_size_max
, num_online_cpus());
7346 /* MFP mode enabled */
7347 if (pf
->hw
.func_caps
.npar_enable
|| pf
->hw
.func_caps
.mfp_mode_1
) {
7348 pf
->flags
|= I40E_FLAG_MFP_ENABLED
;
7349 dev_info(&pf
->pdev
->dev
, "MFP mode Enabled\n");
7352 /* FW/NVM is not yet fixed in this regard */
7353 if ((pf
->hw
.func_caps
.fd_filters_guaranteed
> 0) ||
7354 (pf
->hw
.func_caps
.fd_filters_best_effort
> 0)) {
7355 pf
->flags
|= I40E_FLAG_FD_ATR_ENABLED
;
7356 pf
->atr_sample_rate
= I40E_DEFAULT_ATR_SAMPLE_RATE
;
7357 /* Setup a counter for fd_atr per pf */
7358 pf
->fd_atr_cnt_idx
= I40E_FD_ATR_STAT_IDX(pf
->hw
.pf_id
);
7359 if (!(pf
->flags
& I40E_FLAG_MFP_ENABLED
)) {
7360 pf
->flags
|= I40E_FLAG_FD_SB_ENABLED
;
7361 /* Setup a counter for fd_sb per pf */
7362 pf
->fd_sb_cnt_idx
= I40E_FD_SB_STAT_IDX(pf
->hw
.pf_id
);
7364 dev_info(&pf
->pdev
->dev
,
7365 "Flow Director Sideband mode Disabled in MFP mode\n");
7367 pf
->fdir_pf_filter_count
=
7368 pf
->hw
.func_caps
.fd_filters_guaranteed
;
7369 pf
->hw
.fdir_shared_filter_count
=
7370 pf
->hw
.func_caps
.fd_filters_best_effort
;
7373 if (pf
->hw
.func_caps
.vmdq
) {
7374 pf
->flags
|= I40E_FLAG_VMDQ_ENABLED
;
7375 pf
->num_vmdq_vsis
= I40E_DEFAULT_NUM_VMDQ_VSI
;
7376 pf
->num_vmdq_qps
= I40E_DEFAULT_QUEUES_PER_VMDQ
;
7380 err
= i40e_init_pf_fcoe(pf
);
7382 dev_info(&pf
->pdev
->dev
, "init_pf_fcoe failed: %d\n", err
);
7384 #endif /* I40E_FCOE */
7385 #ifdef CONFIG_PCI_IOV
7386 if (pf
->hw
.func_caps
.num_vfs
&& pf
->hw
.partition_id
== 1) {
7387 pf
->num_vf_qps
= I40E_DEFAULT_QUEUES_PER_VF
;
7388 pf
->flags
|= I40E_FLAG_SRIOV_ENABLED
;
7389 pf
->num_req_vfs
= min_t(int,
7390 pf
->hw
.func_caps
.num_vfs
,
7393 #endif /* CONFIG_PCI_IOV */
7394 pf
->eeprom_version
= 0xDEAD;
7395 pf
->lan_veb
= I40E_NO_VEB
;
7396 pf
->lan_vsi
= I40E_NO_VSI
;
7398 /* set up queue assignment tracking */
7399 size
= sizeof(struct i40e_lump_tracking
)
7400 + (sizeof(u16
) * pf
->hw
.func_caps
.num_tx_qp
);
7401 pf
->qp_pile
= kzalloc(size
, GFP_KERNEL
);
7406 pf
->qp_pile
->num_entries
= pf
->hw
.func_caps
.num_tx_qp
;
7407 pf
->qp_pile
->search_hint
= 0;
7409 /* set up vector assignment tracking */
7410 size
= sizeof(struct i40e_lump_tracking
)
7411 + (sizeof(u16
) * pf
->hw
.func_caps
.num_msix_vectors
);
7412 pf
->irq_pile
= kzalloc(size
, GFP_KERNEL
);
7413 if (!pf
->irq_pile
) {
7418 pf
->irq_pile
->num_entries
= pf
->hw
.func_caps
.num_msix_vectors
;
7419 pf
->irq_pile
->search_hint
= 0;
7421 pf
->tx_timeout_recovery_level
= 1;
7423 mutex_init(&pf
->switch_mutex
);
7430 * i40e_set_ntuple - set the ntuple feature flag and take action
7431 * @pf: board private structure to initialize
7432 * @features: the feature set that the stack is suggesting
7434 * returns a bool to indicate if reset needs to happen
7436 bool i40e_set_ntuple(struct i40e_pf
*pf
, netdev_features_t features
)
7438 bool need_reset
= false;
7440 /* Check if Flow Director n-tuple support was enabled or disabled. If
7441 * the state changed, we need to reset.
7443 if (features
& NETIF_F_NTUPLE
) {
7444 /* Enable filters and mark for reset */
7445 if (!(pf
->flags
& I40E_FLAG_FD_SB_ENABLED
))
7447 pf
->flags
|= I40E_FLAG_FD_SB_ENABLED
;
7449 /* turn off filters, mark for reset and clear SW filter list */
7450 if (pf
->flags
& I40E_FLAG_FD_SB_ENABLED
) {
7452 i40e_fdir_filter_exit(pf
);
7454 pf
->flags
&= ~I40E_FLAG_FD_SB_ENABLED
;
7455 pf
->auto_disable_flags
&= ~I40E_FLAG_FD_SB_ENABLED
;
7456 /* reset fd counters */
7457 pf
->fd_add_err
= pf
->fd_atr_cnt
= pf
->fd_tcp_rule
= 0;
7458 pf
->fdir_pf_active_filters
= 0;
7459 pf
->flags
|= I40E_FLAG_FD_ATR_ENABLED
;
7460 dev_info(&pf
->pdev
->dev
, "ATR re-enabled.\n");
7461 /* if ATR was auto disabled it can be re-enabled. */
7462 if ((pf
->flags
& I40E_FLAG_FD_ATR_ENABLED
) &&
7463 (pf
->auto_disable_flags
& I40E_FLAG_FD_ATR_ENABLED
))
7464 pf
->auto_disable_flags
&= ~I40E_FLAG_FD_ATR_ENABLED
;
7470 * i40e_set_features - set the netdev feature flags
7471 * @netdev: ptr to the netdev being adjusted
7472 * @features: the feature set that the stack is suggesting
7474 static int i40e_set_features(struct net_device
*netdev
,
7475 netdev_features_t features
)
7477 struct i40e_netdev_priv
*np
= netdev_priv(netdev
);
7478 struct i40e_vsi
*vsi
= np
->vsi
;
7479 struct i40e_pf
*pf
= vsi
->back
;
7482 if (features
& NETIF_F_HW_VLAN_CTAG_RX
)
7483 i40e_vlan_stripping_enable(vsi
);
7485 i40e_vlan_stripping_disable(vsi
);
7487 need_reset
= i40e_set_ntuple(pf
, features
);
7490 i40e_do_reset(pf
, (1 << __I40E_PF_RESET_REQUESTED
));
7495 #ifdef CONFIG_I40E_VXLAN
7497 * i40e_get_vxlan_port_idx - Lookup a possibly offloaded for Rx UDP port
7498 * @pf: board private structure
7499 * @port: The UDP port to look up
7501 * Returns the index number or I40E_MAX_PF_UDP_OFFLOAD_PORTS if port not found
7503 static u8
i40e_get_vxlan_port_idx(struct i40e_pf
*pf
, __be16 port
)
7507 for (i
= 0; i
< I40E_MAX_PF_UDP_OFFLOAD_PORTS
; i
++) {
7508 if (pf
->vxlan_ports
[i
] == port
)
7516 * i40e_add_vxlan_port - Get notifications about VXLAN ports that come up
7517 * @netdev: This physical port's netdev
7518 * @sa_family: Socket Family that VXLAN is notifying us about
7519 * @port: New UDP port number that VXLAN started listening to
7521 static void i40e_add_vxlan_port(struct net_device
*netdev
,
7522 sa_family_t sa_family
, __be16 port
)
7524 struct i40e_netdev_priv
*np
= netdev_priv(netdev
);
7525 struct i40e_vsi
*vsi
= np
->vsi
;
7526 struct i40e_pf
*pf
= vsi
->back
;
7530 if (sa_family
== AF_INET6
)
7533 idx
= i40e_get_vxlan_port_idx(pf
, port
);
7535 /* Check if port already exists */
7536 if (idx
< I40E_MAX_PF_UDP_OFFLOAD_PORTS
) {
7537 netdev_info(netdev
, "Port %d already offloaded\n", ntohs(port
));
7541 /* Now check if there is space to add the new port */
7542 next_idx
= i40e_get_vxlan_port_idx(pf
, 0);
7544 if (next_idx
== I40E_MAX_PF_UDP_OFFLOAD_PORTS
) {
7545 netdev_info(netdev
, "Maximum number of UDP ports reached, not adding port %d\n",
7550 /* New port: add it and mark its index in the bitmap */
7551 pf
->vxlan_ports
[next_idx
] = port
;
7552 pf
->pending_vxlan_bitmap
|= (1 << next_idx
);
7554 pf
->flags
|= I40E_FLAG_VXLAN_FILTER_SYNC
;
7558 * i40e_del_vxlan_port - Get notifications about VXLAN ports that go away
7559 * @netdev: This physical port's netdev
7560 * @sa_family: Socket Family that VXLAN is notifying us about
7561 * @port: UDP port number that VXLAN stopped listening to
7563 static void i40e_del_vxlan_port(struct net_device
*netdev
,
7564 sa_family_t sa_family
, __be16 port
)
7566 struct i40e_netdev_priv
*np
= netdev_priv(netdev
);
7567 struct i40e_vsi
*vsi
= np
->vsi
;
7568 struct i40e_pf
*pf
= vsi
->back
;
7571 if (sa_family
== AF_INET6
)
7574 idx
= i40e_get_vxlan_port_idx(pf
, port
);
7576 /* Check if port already exists */
7577 if (idx
< I40E_MAX_PF_UDP_OFFLOAD_PORTS
) {
7578 /* if port exists, set it to 0 (mark for deletion)
7579 * and make it pending
7581 pf
->vxlan_ports
[idx
] = 0;
7583 pf
->pending_vxlan_bitmap
|= (1 << idx
);
7585 pf
->flags
|= I40E_FLAG_VXLAN_FILTER_SYNC
;
7587 netdev_warn(netdev
, "Port %d was not found, not deleting\n",
7593 static int i40e_get_phys_port_id(struct net_device
*netdev
,
7594 struct netdev_phys_item_id
*ppid
)
7596 struct i40e_netdev_priv
*np
= netdev_priv(netdev
);
7597 struct i40e_pf
*pf
= np
->vsi
->back
;
7598 struct i40e_hw
*hw
= &pf
->hw
;
7600 if (!(pf
->flags
& I40E_FLAG_PORT_ID_VALID
))
7603 ppid
->id_len
= min_t(int, sizeof(hw
->mac
.port_addr
), sizeof(ppid
->id
));
7604 memcpy(ppid
->id
, hw
->mac
.port_addr
, ppid
->id_len
);
7610 * i40e_ndo_fdb_add - add an entry to the hardware database
7611 * @ndm: the input from the stack
7612 * @tb: pointer to array of nladdr (unused)
7613 * @dev: the net device pointer
7614 * @addr: the MAC address entry being added
7615 * @flags: instructions from stack about fdb operation
7617 static int i40e_ndo_fdb_add(struct ndmsg
*ndm
, struct nlattr
*tb
[],
7618 struct net_device
*dev
,
7619 const unsigned char *addr
, u16 vid
,
7622 struct i40e_netdev_priv
*np
= netdev_priv(dev
);
7623 struct i40e_pf
*pf
= np
->vsi
->back
;
7626 if (!(pf
->flags
& I40E_FLAG_SRIOV_ENABLED
))
7630 pr_info("%s: vlans aren't supported yet for dev_uc|mc_add()\n", dev
->name
);
7634 /* Hardware does not support aging addresses so if a
7635 * ndm_state is given only allow permanent addresses
7637 if (ndm
->ndm_state
&& !(ndm
->ndm_state
& NUD_PERMANENT
)) {
7638 netdev_info(dev
, "FDB only supports static addresses\n");
7642 if (is_unicast_ether_addr(addr
) || is_link_local_ether_addr(addr
))
7643 err
= dev_uc_add_excl(dev
, addr
);
7644 else if (is_multicast_ether_addr(addr
))
7645 err
= dev_mc_add_excl(dev
, addr
);
7649 /* Only return duplicate errors if NLM_F_EXCL is set */
7650 if (err
== -EEXIST
&& !(flags
& NLM_F_EXCL
))
7656 static const struct net_device_ops i40e_netdev_ops
= {
7657 .ndo_open
= i40e_open
,
7658 .ndo_stop
= i40e_close
,
7659 .ndo_start_xmit
= i40e_lan_xmit_frame
,
7660 .ndo_get_stats64
= i40e_get_netdev_stats_struct
,
7661 .ndo_set_rx_mode
= i40e_set_rx_mode
,
7662 .ndo_validate_addr
= eth_validate_addr
,
7663 .ndo_set_mac_address
= i40e_set_mac
,
7664 .ndo_change_mtu
= i40e_change_mtu
,
7665 .ndo_do_ioctl
= i40e_ioctl
,
7666 .ndo_tx_timeout
= i40e_tx_timeout
,
7667 .ndo_vlan_rx_add_vid
= i40e_vlan_rx_add_vid
,
7668 .ndo_vlan_rx_kill_vid
= i40e_vlan_rx_kill_vid
,
7669 #ifdef CONFIG_NET_POLL_CONTROLLER
7670 .ndo_poll_controller
= i40e_netpoll
,
7672 .ndo_setup_tc
= i40e_setup_tc
,
7674 .ndo_fcoe_enable
= i40e_fcoe_enable
,
7675 .ndo_fcoe_disable
= i40e_fcoe_disable
,
7677 .ndo_set_features
= i40e_set_features
,
7678 .ndo_set_vf_mac
= i40e_ndo_set_vf_mac
,
7679 .ndo_set_vf_vlan
= i40e_ndo_set_vf_port_vlan
,
7680 .ndo_set_vf_rate
= i40e_ndo_set_vf_bw
,
7681 .ndo_get_vf_config
= i40e_ndo_get_vf_config
,
7682 .ndo_set_vf_link_state
= i40e_ndo_set_vf_link_state
,
7683 .ndo_set_vf_spoofchk
= i40e_ndo_set_vf_spoofchk
,
7684 #ifdef CONFIG_I40E_VXLAN
7685 .ndo_add_vxlan_port
= i40e_add_vxlan_port
,
7686 .ndo_del_vxlan_port
= i40e_del_vxlan_port
,
7688 .ndo_get_phys_port_id
= i40e_get_phys_port_id
,
7689 .ndo_fdb_add
= i40e_ndo_fdb_add
,
7693 * i40e_config_netdev - Setup the netdev flags
7694 * @vsi: the VSI being configured
7696 * Returns 0 on success, negative value on failure
7698 static int i40e_config_netdev(struct i40e_vsi
*vsi
)
7700 u8 brdcast
[ETH_ALEN
] = {0xff, 0xff, 0xff, 0xff, 0xff, 0xff};
7701 struct i40e_pf
*pf
= vsi
->back
;
7702 struct i40e_hw
*hw
= &pf
->hw
;
7703 struct i40e_netdev_priv
*np
;
7704 struct net_device
*netdev
;
7705 u8 mac_addr
[ETH_ALEN
];
7708 etherdev_size
= sizeof(struct i40e_netdev_priv
);
7709 netdev
= alloc_etherdev_mq(etherdev_size
, vsi
->alloc_queue_pairs
);
7713 vsi
->netdev
= netdev
;
7714 np
= netdev_priv(netdev
);
7717 netdev
->hw_enc_features
|= NETIF_F_IP_CSUM
|
7718 NETIF_F_GSO_UDP_TUNNEL
|
7721 netdev
->features
= NETIF_F_SG
|
7725 NETIF_F_GSO_UDP_TUNNEL
|
7726 NETIF_F_HW_VLAN_CTAG_TX
|
7727 NETIF_F_HW_VLAN_CTAG_RX
|
7728 NETIF_F_HW_VLAN_CTAG_FILTER
|
7737 if (!(pf
->flags
& I40E_FLAG_MFP_ENABLED
))
7738 netdev
->features
|= NETIF_F_NTUPLE
;
7740 /* copy netdev features into list of user selectable features */
7741 netdev
->hw_features
|= netdev
->features
;
7743 if (vsi
->type
== I40E_VSI_MAIN
) {
7744 SET_NETDEV_DEV(netdev
, &pf
->pdev
->dev
);
7745 ether_addr_copy(mac_addr
, hw
->mac
.perm_addr
);
7746 /* The following steps are necessary to prevent reception
7747 * of tagged packets - some older NVM configurations load a
7748 * default a MAC-VLAN filter that accepts any tagged packet
7749 * which must be replaced by a normal filter.
7751 if (!i40e_rm_default_mac_filter(vsi
, mac_addr
))
7752 i40e_add_filter(vsi
, mac_addr
,
7753 I40E_VLAN_ANY
, false, true);
7755 /* relate the VSI_VMDQ name to the VSI_MAIN name */
7756 snprintf(netdev
->name
, IFNAMSIZ
, "%sv%%d",
7757 pf
->vsi
[pf
->lan_vsi
]->netdev
->name
);
7758 random_ether_addr(mac_addr
);
7759 i40e_add_filter(vsi
, mac_addr
, I40E_VLAN_ANY
, false, false);
7761 i40e_add_filter(vsi
, brdcast
, I40E_VLAN_ANY
, false, false);
7763 ether_addr_copy(netdev
->dev_addr
, mac_addr
);
7764 ether_addr_copy(netdev
->perm_addr
, mac_addr
);
7765 /* vlan gets same features (except vlan offload)
7766 * after any tweaks for specific VSI types
7768 netdev
->vlan_features
= netdev
->features
& ~(NETIF_F_HW_VLAN_CTAG_TX
|
7769 NETIF_F_HW_VLAN_CTAG_RX
|
7770 NETIF_F_HW_VLAN_CTAG_FILTER
);
7771 netdev
->priv_flags
|= IFF_UNICAST_FLT
;
7772 netdev
->priv_flags
|= IFF_SUPP_NOFCS
;
7773 /* Setup netdev TC information */
7774 i40e_vsi_config_netdev_tc(vsi
, vsi
->tc_config
.enabled_tc
);
7776 netdev
->netdev_ops
= &i40e_netdev_ops
;
7777 netdev
->watchdog_timeo
= 5 * HZ
;
7778 i40e_set_ethtool_ops(netdev
);
7780 i40e_fcoe_config_netdev(netdev
, vsi
);
7787 * i40e_vsi_delete - Delete a VSI from the switch
7788 * @vsi: the VSI being removed
7790 * Returns 0 on success, negative value on failure
7792 static void i40e_vsi_delete(struct i40e_vsi
*vsi
)
7794 /* remove default VSI is not allowed */
7795 if (vsi
== vsi
->back
->vsi
[vsi
->back
->lan_vsi
])
7798 i40e_aq_delete_element(&vsi
->back
->hw
, vsi
->seid
, NULL
);
7802 * i40e_add_vsi - Add a VSI to the switch
7803 * @vsi: the VSI being configured
7805 * This initializes a VSI context depending on the VSI type to be added and
7806 * passes it down to the add_vsi aq command.
7808 static int i40e_add_vsi(struct i40e_vsi
*vsi
)
7811 struct i40e_mac_filter
*f
, *ftmp
;
7812 struct i40e_pf
*pf
= vsi
->back
;
7813 struct i40e_hw
*hw
= &pf
->hw
;
7814 struct i40e_vsi_context ctxt
;
7815 u8 enabled_tc
= 0x1; /* TC0 enabled */
7818 memset(&ctxt
, 0, sizeof(ctxt
));
7819 switch (vsi
->type
) {
7821 /* The PF's main VSI is already setup as part of the
7822 * device initialization, so we'll not bother with
7823 * the add_vsi call, but we will retrieve the current
7826 ctxt
.seid
= pf
->main_vsi_seid
;
7827 ctxt
.pf_num
= pf
->hw
.pf_id
;
7829 ret
= i40e_aq_get_vsi_params(&pf
->hw
, &ctxt
, NULL
);
7830 ctxt
.flags
= I40E_AQ_VSI_TYPE_PF
;
7832 dev_info(&pf
->pdev
->dev
,
7833 "couldn't get pf vsi config, err %d, aq_err %d\n",
7834 ret
, pf
->hw
.aq
.asq_last_status
);
7837 memcpy(&vsi
->info
, &ctxt
.info
, sizeof(ctxt
.info
));
7838 vsi
->info
.valid_sections
= 0;
7840 vsi
->seid
= ctxt
.seid
;
7841 vsi
->id
= ctxt
.vsi_number
;
7843 enabled_tc
= i40e_pf_get_tc_map(pf
);
7845 /* MFP mode setup queue map and update VSI */
7846 if ((pf
->flags
& I40E_FLAG_MFP_ENABLED
) &&
7847 !(pf
->hw
.func_caps
.iscsi
)) { /* NIC type PF */
7848 memset(&ctxt
, 0, sizeof(ctxt
));
7849 ctxt
.seid
= pf
->main_vsi_seid
;
7850 ctxt
.pf_num
= pf
->hw
.pf_id
;
7852 i40e_vsi_setup_queue_map(vsi
, &ctxt
, enabled_tc
, false);
7853 ret
= i40e_aq_update_vsi_params(hw
, &ctxt
, NULL
);
7855 dev_info(&pf
->pdev
->dev
,
7856 "update vsi failed, aq_err=%d\n",
7857 pf
->hw
.aq
.asq_last_status
);
7861 /* update the local VSI info queue map */
7862 i40e_vsi_update_queue_map(vsi
, &ctxt
);
7863 vsi
->info
.valid_sections
= 0;
7865 /* Default/Main VSI is only enabled for TC0
7866 * reconfigure it to enable all TCs that are
7867 * available on the port in SFP mode.
7868 * For MFP case the iSCSI PF would use this
7869 * flow to enable LAN+iSCSI TC.
7871 ret
= i40e_vsi_config_tc(vsi
, enabled_tc
);
7873 dev_info(&pf
->pdev
->dev
,
7874 "failed to configure TCs for main VSI tc_map 0x%08x, err %d, aq_err %d\n",
7876 pf
->hw
.aq
.asq_last_status
);
7883 ctxt
.pf_num
= hw
->pf_id
;
7885 ctxt
.uplink_seid
= vsi
->uplink_seid
;
7886 ctxt
.connection_type
= 0x1; /* regular data port */
7887 ctxt
.flags
= I40E_AQ_VSI_TYPE_PF
;
7888 ctxt
.info
.valid_sections
|=
7889 cpu_to_le16(I40E_AQ_VSI_PROP_SWITCH_VALID
);
7890 ctxt
.info
.switch_id
=
7891 cpu_to_le16(I40E_AQ_VSI_SW_ID_FLAG_ALLOW_LB
);
7892 i40e_vsi_setup_queue_map(vsi
, &ctxt
, enabled_tc
, true);
7895 case I40E_VSI_VMDQ2
:
7896 ctxt
.pf_num
= hw
->pf_id
;
7898 ctxt
.uplink_seid
= vsi
->uplink_seid
;
7899 ctxt
.connection_type
= 0x1; /* regular data port */
7900 ctxt
.flags
= I40E_AQ_VSI_TYPE_VMDQ2
;
7902 ctxt
.info
.valid_sections
|= cpu_to_le16(I40E_AQ_VSI_PROP_SWITCH_VALID
);
7904 /* This VSI is connected to VEB so the switch_id
7905 * should be set to zero by default.
7907 ctxt
.info
.switch_id
= 0;
7908 ctxt
.info
.switch_id
|= cpu_to_le16(I40E_AQ_VSI_SW_ID_FLAG_ALLOW_LB
);
7910 /* Setup the VSI tx/rx queue map for TC0 only for now */
7911 i40e_vsi_setup_queue_map(vsi
, &ctxt
, enabled_tc
, true);
7914 case I40E_VSI_SRIOV
:
7915 ctxt
.pf_num
= hw
->pf_id
;
7916 ctxt
.vf_num
= vsi
->vf_id
+ hw
->func_caps
.vf_base_id
;
7917 ctxt
.uplink_seid
= vsi
->uplink_seid
;
7918 ctxt
.connection_type
= 0x1; /* regular data port */
7919 ctxt
.flags
= I40E_AQ_VSI_TYPE_VF
;
7921 ctxt
.info
.valid_sections
|= cpu_to_le16(I40E_AQ_VSI_PROP_SWITCH_VALID
);
7923 /* This VSI is connected to VEB so the switch_id
7924 * should be set to zero by default.
7926 ctxt
.info
.switch_id
= cpu_to_le16(I40E_AQ_VSI_SW_ID_FLAG_ALLOW_LB
);
7928 ctxt
.info
.valid_sections
|= cpu_to_le16(I40E_AQ_VSI_PROP_VLAN_VALID
);
7929 ctxt
.info
.port_vlan_flags
|= I40E_AQ_VSI_PVLAN_MODE_ALL
;
7930 if (pf
->vf
[vsi
->vf_id
].spoofchk
) {
7931 ctxt
.info
.valid_sections
|=
7932 cpu_to_le16(I40E_AQ_VSI_PROP_SECURITY_VALID
);
7933 ctxt
.info
.sec_flags
|=
7934 (I40E_AQ_VSI_SEC_FLAG_ENABLE_VLAN_CHK
|
7935 I40E_AQ_VSI_SEC_FLAG_ENABLE_MAC_CHK
);
7937 /* Setup the VSI tx/rx queue map for TC0 only for now */
7938 i40e_vsi_setup_queue_map(vsi
, &ctxt
, enabled_tc
, true);
7943 ret
= i40e_fcoe_vsi_init(vsi
, &ctxt
);
7945 dev_info(&pf
->pdev
->dev
, "failed to initialize FCoE VSI\n");
7950 #endif /* I40E_FCOE */
7955 if (vsi
->type
!= I40E_VSI_MAIN
) {
7956 ret
= i40e_aq_add_vsi(hw
, &ctxt
, NULL
);
7958 dev_info(&vsi
->back
->pdev
->dev
,
7959 "add vsi failed, aq_err=%d\n",
7960 vsi
->back
->hw
.aq
.asq_last_status
);
7964 memcpy(&vsi
->info
, &ctxt
.info
, sizeof(ctxt
.info
));
7965 vsi
->info
.valid_sections
= 0;
7966 vsi
->seid
= ctxt
.seid
;
7967 vsi
->id
= ctxt
.vsi_number
;
7970 /* If macvlan filters already exist, force them to get loaded */
7971 list_for_each_entry_safe(f
, ftmp
, &vsi
->mac_filter_list
, list
) {
7975 if (f
->is_laa
&& vsi
->type
== I40E_VSI_MAIN
) {
7976 struct i40e_aqc_remove_macvlan_element_data element
;
7978 memset(&element
, 0, sizeof(element
));
7979 ether_addr_copy(element
.mac_addr
, f
->macaddr
);
7980 element
.flags
= I40E_AQC_MACVLAN_DEL_PERFECT_MATCH
;
7981 ret
= i40e_aq_remove_macvlan(hw
, vsi
->seid
,
7984 /* some older FW has a different default */
7986 I40E_AQC_MACVLAN_DEL_IGNORE_VLAN
;
7987 i40e_aq_remove_macvlan(hw
, vsi
->seid
,
7991 i40e_aq_mac_address_write(hw
,
7992 I40E_AQC_WRITE_TYPE_LAA_WOL
,
7997 vsi
->flags
|= I40E_VSI_FLAG_FILTER_CHANGED
;
7998 pf
->flags
|= I40E_FLAG_FILTER_SYNC
;
8001 /* Update VSI BW information */
8002 ret
= i40e_vsi_get_bw_info(vsi
);
8004 dev_info(&pf
->pdev
->dev
,
8005 "couldn't get vsi bw info, err %d, aq_err %d\n",
8006 ret
, pf
->hw
.aq
.asq_last_status
);
8007 /* VSI is already added so not tearing that up */
8016 * i40e_vsi_release - Delete a VSI and free its resources
8017 * @vsi: the VSI being removed
8019 * Returns 0 on success or < 0 on error
8021 int i40e_vsi_release(struct i40e_vsi
*vsi
)
8023 struct i40e_mac_filter
*f
, *ftmp
;
8024 struct i40e_veb
*veb
= NULL
;
8031 /* release of a VEB-owner or last VSI is not allowed */
8032 if (vsi
->flags
& I40E_VSI_FLAG_VEB_OWNER
) {
8033 dev_info(&pf
->pdev
->dev
, "VSI %d has existing VEB %d\n",
8034 vsi
->seid
, vsi
->uplink_seid
);
8037 if (vsi
== pf
->vsi
[pf
->lan_vsi
] &&
8038 !test_bit(__I40E_DOWN
, &pf
->state
)) {
8039 dev_info(&pf
->pdev
->dev
, "Can't remove PF VSI\n");
8043 uplink_seid
= vsi
->uplink_seid
;
8044 if (vsi
->type
!= I40E_VSI_SRIOV
) {
8045 if (vsi
->netdev_registered
) {
8046 vsi
->netdev_registered
= false;
8048 /* results in a call to i40e_close() */
8049 unregister_netdev(vsi
->netdev
);
8052 i40e_vsi_close(vsi
);
8054 i40e_vsi_disable_irq(vsi
);
8057 list_for_each_entry_safe(f
, ftmp
, &vsi
->mac_filter_list
, list
)
8058 i40e_del_filter(vsi
, f
->macaddr
, f
->vlan
,
8059 f
->is_vf
, f
->is_netdev
);
8060 i40e_sync_vsi_filters(vsi
);
8062 i40e_vsi_delete(vsi
);
8063 i40e_vsi_free_q_vectors(vsi
);
8065 free_netdev(vsi
->netdev
);
8068 i40e_vsi_clear_rings(vsi
);
8069 i40e_vsi_clear(vsi
);
8071 /* If this was the last thing on the VEB, except for the
8072 * controlling VSI, remove the VEB, which puts the controlling
8073 * VSI onto the next level down in the switch.
8075 * Well, okay, there's one more exception here: don't remove
8076 * the orphan VEBs yet. We'll wait for an explicit remove request
8077 * from up the network stack.
8079 for (n
= 0, i
= 0; i
< pf
->num_alloc_vsi
; i
++) {
8081 pf
->vsi
[i
]->uplink_seid
== uplink_seid
&&
8082 (pf
->vsi
[i
]->flags
& I40E_VSI_FLAG_VEB_OWNER
) == 0) {
8083 n
++; /* count the VSIs */
8086 for (i
= 0; i
< I40E_MAX_VEB
; i
++) {
8089 if (pf
->veb
[i
]->uplink_seid
== uplink_seid
)
8090 n
++; /* count the VEBs */
8091 if (pf
->veb
[i
]->seid
== uplink_seid
)
8094 if (n
== 0 && veb
&& veb
->uplink_seid
!= 0)
8095 i40e_veb_release(veb
);
8101 * i40e_vsi_setup_vectors - Set up the q_vectors for the given VSI
8102 * @vsi: ptr to the VSI
8104 * This should only be called after i40e_vsi_mem_alloc() which allocates the
8105 * corresponding SW VSI structure and initializes num_queue_pairs for the
8106 * newly allocated VSI.
8108 * Returns 0 on success or negative on failure
8110 static int i40e_vsi_setup_vectors(struct i40e_vsi
*vsi
)
8113 struct i40e_pf
*pf
= vsi
->back
;
8115 if (vsi
->q_vectors
[0]) {
8116 dev_info(&pf
->pdev
->dev
, "VSI %d has existing q_vectors\n",
8121 if (vsi
->base_vector
) {
8122 dev_info(&pf
->pdev
->dev
, "VSI %d has non-zero base vector %d\n",
8123 vsi
->seid
, vsi
->base_vector
);
8127 ret
= i40e_vsi_alloc_q_vectors(vsi
);
8129 dev_info(&pf
->pdev
->dev
,
8130 "failed to allocate %d q_vector for VSI %d, ret=%d\n",
8131 vsi
->num_q_vectors
, vsi
->seid
, ret
);
8132 vsi
->num_q_vectors
= 0;
8133 goto vector_setup_out
;
8136 if (vsi
->num_q_vectors
)
8137 vsi
->base_vector
= i40e_get_lump(pf
, pf
->irq_pile
,
8138 vsi
->num_q_vectors
, vsi
->idx
);
8139 if (vsi
->base_vector
< 0) {
8140 dev_info(&pf
->pdev
->dev
,
8141 "failed to get tracking for %d vectors for VSI %d, err=%d\n",
8142 vsi
->num_q_vectors
, vsi
->seid
, vsi
->base_vector
);
8143 i40e_vsi_free_q_vectors(vsi
);
8145 goto vector_setup_out
;
8153 * i40e_vsi_reinit_setup - return and reallocate resources for a VSI
8154 * @vsi: pointer to the vsi.
8156 * This re-allocates a vsi's queue resources.
8158 * Returns pointer to the successfully allocated and configured VSI sw struct
8159 * on success, otherwise returns NULL on failure.
8161 static struct i40e_vsi
*i40e_vsi_reinit_setup(struct i40e_vsi
*vsi
)
8163 struct i40e_pf
*pf
= vsi
->back
;
8167 i40e_put_lump(pf
->qp_pile
, vsi
->base_queue
, vsi
->idx
);
8168 i40e_vsi_clear_rings(vsi
);
8170 i40e_vsi_free_arrays(vsi
, false);
8171 i40e_set_num_rings_in_vsi(vsi
);
8172 ret
= i40e_vsi_alloc_arrays(vsi
, false);
8176 ret
= i40e_get_lump(pf
, pf
->qp_pile
, vsi
->alloc_queue_pairs
, vsi
->idx
);
8178 dev_info(&pf
->pdev
->dev
,
8179 "failed to get tracking for %d queues for VSI %d err=%d\n",
8180 vsi
->alloc_queue_pairs
, vsi
->seid
, ret
);
8183 vsi
->base_queue
= ret
;
8185 /* Update the FW view of the VSI. Force a reset of TC and queue
8186 * layout configurations.
8188 enabled_tc
= pf
->vsi
[pf
->lan_vsi
]->tc_config
.enabled_tc
;
8189 pf
->vsi
[pf
->lan_vsi
]->tc_config
.enabled_tc
= 0;
8190 pf
->vsi
[pf
->lan_vsi
]->seid
= pf
->main_vsi_seid
;
8191 i40e_vsi_config_tc(pf
->vsi
[pf
->lan_vsi
], enabled_tc
);
8193 /* assign it some queues */
8194 ret
= i40e_alloc_rings(vsi
);
8198 /* map all of the rings to the q_vectors */
8199 i40e_vsi_map_rings_to_vectors(vsi
);
8203 i40e_vsi_free_q_vectors(vsi
);
8204 if (vsi
->netdev_registered
) {
8205 vsi
->netdev_registered
= false;
8206 unregister_netdev(vsi
->netdev
);
8207 free_netdev(vsi
->netdev
);
8210 i40e_aq_delete_element(&pf
->hw
, vsi
->seid
, NULL
);
8212 i40e_vsi_clear(vsi
);
8217 * i40e_vsi_setup - Set up a VSI by a given type
8218 * @pf: board private structure
8220 * @uplink_seid: the switch element to link to
8221 * @param1: usage depends upon VSI type. For VF types, indicates VF id
8223 * This allocates the sw VSI structure and its queue resources, then add a VSI
8224 * to the identified VEB.
8226 * Returns pointer to the successfully allocated and configure VSI sw struct on
8227 * success, otherwise returns NULL on failure.
8229 struct i40e_vsi
*i40e_vsi_setup(struct i40e_pf
*pf
, u8 type
,
8230 u16 uplink_seid
, u32 param1
)
8232 struct i40e_vsi
*vsi
= NULL
;
8233 struct i40e_veb
*veb
= NULL
;
8237 /* The requested uplink_seid must be either
8238 * - the PF's port seid
8239 * no VEB is needed because this is the PF
8240 * or this is a Flow Director special case VSI
8241 * - seid of an existing VEB
8242 * - seid of a VSI that owns an existing VEB
8243 * - seid of a VSI that doesn't own a VEB
8244 * a new VEB is created and the VSI becomes the owner
8245 * - seid of the PF VSI, which is what creates the first VEB
8246 * this is a special case of the previous
8248 * Find which uplink_seid we were given and create a new VEB if needed
8250 for (i
= 0; i
< I40E_MAX_VEB
; i
++) {
8251 if (pf
->veb
[i
] && pf
->veb
[i
]->seid
== uplink_seid
) {
8257 if (!veb
&& uplink_seid
!= pf
->mac_seid
) {
8259 for (i
= 0; i
< pf
->num_alloc_vsi
; i
++) {
8260 if (pf
->vsi
[i
] && pf
->vsi
[i
]->seid
== uplink_seid
) {
8266 dev_info(&pf
->pdev
->dev
, "no such uplink_seid %d\n",
8271 if (vsi
->uplink_seid
== pf
->mac_seid
)
8272 veb
= i40e_veb_setup(pf
, 0, pf
->mac_seid
, vsi
->seid
,
8273 vsi
->tc_config
.enabled_tc
);
8274 else if ((vsi
->flags
& I40E_VSI_FLAG_VEB_OWNER
) == 0)
8275 veb
= i40e_veb_setup(pf
, 0, vsi
->uplink_seid
, vsi
->seid
,
8276 vsi
->tc_config
.enabled_tc
);
8278 if (vsi
->seid
!= pf
->vsi
[pf
->lan_vsi
]->seid
) {
8279 dev_info(&vsi
->back
->pdev
->dev
,
8280 "%s: New VSI creation error, uplink seid of LAN VSI expected.\n",
8284 i40e_enable_pf_switch_lb(pf
);
8286 for (i
= 0; i
< I40E_MAX_VEB
&& !veb
; i
++) {
8287 if (pf
->veb
[i
] && pf
->veb
[i
]->seid
== vsi
->uplink_seid
)
8291 dev_info(&pf
->pdev
->dev
, "couldn't add VEB\n");
8295 vsi
->flags
|= I40E_VSI_FLAG_VEB_OWNER
;
8296 uplink_seid
= veb
->seid
;
8299 /* get vsi sw struct */
8300 v_idx
= i40e_vsi_mem_alloc(pf
, type
);
8303 vsi
= pf
->vsi
[v_idx
];
8307 vsi
->veb_idx
= (veb
? veb
->idx
: I40E_NO_VEB
);
8309 if (type
== I40E_VSI_MAIN
)
8310 pf
->lan_vsi
= v_idx
;
8311 else if (type
== I40E_VSI_SRIOV
)
8312 vsi
->vf_id
= param1
;
8313 /* assign it some queues */
8314 ret
= i40e_get_lump(pf
, pf
->qp_pile
, vsi
->alloc_queue_pairs
,
8317 dev_info(&pf
->pdev
->dev
,
8318 "failed to get tracking for %d queues for VSI %d err=%d\n",
8319 vsi
->alloc_queue_pairs
, vsi
->seid
, ret
);
8322 vsi
->base_queue
= ret
;
8324 /* get a VSI from the hardware */
8325 vsi
->uplink_seid
= uplink_seid
;
8326 ret
= i40e_add_vsi(vsi
);
8330 switch (vsi
->type
) {
8331 /* setup the netdev if needed */
8333 case I40E_VSI_VMDQ2
:
8335 ret
= i40e_config_netdev(vsi
);
8338 ret
= register_netdev(vsi
->netdev
);
8341 vsi
->netdev_registered
= true;
8342 netif_carrier_off(vsi
->netdev
);
8343 #ifdef CONFIG_I40E_DCB
8344 /* Setup DCB netlink interface */
8345 i40e_dcbnl_setup(vsi
);
8346 #endif /* CONFIG_I40E_DCB */
8350 /* set up vectors and rings if needed */
8351 ret
= i40e_vsi_setup_vectors(vsi
);
8355 ret
= i40e_alloc_rings(vsi
);
8359 /* map all of the rings to the q_vectors */
8360 i40e_vsi_map_rings_to_vectors(vsi
);
8362 i40e_vsi_reset_stats(vsi
);
8366 /* no netdev or rings for the other VSI types */
8373 i40e_vsi_free_q_vectors(vsi
);
8375 if (vsi
->netdev_registered
) {
8376 vsi
->netdev_registered
= false;
8377 unregister_netdev(vsi
->netdev
);
8378 free_netdev(vsi
->netdev
);
8382 i40e_aq_delete_element(&pf
->hw
, vsi
->seid
, NULL
);
8384 i40e_vsi_clear(vsi
);
8390 * i40e_veb_get_bw_info - Query VEB BW information
8391 * @veb: the veb to query
8393 * Query the Tx scheduler BW configuration data for given VEB
8395 static int i40e_veb_get_bw_info(struct i40e_veb
*veb
)
8397 struct i40e_aqc_query_switching_comp_ets_config_resp ets_data
;
8398 struct i40e_aqc_query_switching_comp_bw_config_resp bw_data
;
8399 struct i40e_pf
*pf
= veb
->pf
;
8400 struct i40e_hw
*hw
= &pf
->hw
;
8405 ret
= i40e_aq_query_switch_comp_bw_config(hw
, veb
->seid
,
8408 dev_info(&pf
->pdev
->dev
,
8409 "query veb bw config failed, aq_err=%d\n",
8410 hw
->aq
.asq_last_status
);
8414 ret
= i40e_aq_query_switch_comp_ets_config(hw
, veb
->seid
,
8417 dev_info(&pf
->pdev
->dev
,
8418 "query veb bw ets config failed, aq_err=%d\n",
8419 hw
->aq
.asq_last_status
);
8423 veb
->bw_limit
= le16_to_cpu(ets_data
.port_bw_limit
);
8424 veb
->bw_max_quanta
= ets_data
.tc_bw_max
;
8425 veb
->is_abs_credits
= bw_data
.absolute_credits_enable
;
8426 veb
->enabled_tc
= ets_data
.tc_valid_bits
;
8427 tc_bw_max
= le16_to_cpu(bw_data
.tc_bw_max
[0]) |
8428 (le16_to_cpu(bw_data
.tc_bw_max
[1]) << 16);
8429 for (i
= 0; i
< I40E_MAX_TRAFFIC_CLASS
; i
++) {
8430 veb
->bw_tc_share_credits
[i
] = bw_data
.tc_bw_share_credits
[i
];
8431 veb
->bw_tc_limit_credits
[i
] =
8432 le16_to_cpu(bw_data
.tc_bw_limits
[i
]);
8433 veb
->bw_tc_max_quanta
[i
] = ((tc_bw_max
>> (i
*4)) & 0x7);
8441 * i40e_veb_mem_alloc - Allocates the next available struct veb in the PF
8442 * @pf: board private structure
8444 * On error: returns error code (negative)
8445 * On success: returns vsi index in PF (positive)
8447 static int i40e_veb_mem_alloc(struct i40e_pf
*pf
)
8450 struct i40e_veb
*veb
;
8453 /* Need to protect the allocation of switch elements at the PF level */
8454 mutex_lock(&pf
->switch_mutex
);
8456 /* VEB list may be fragmented if VEB creation/destruction has
8457 * been happening. We can afford to do a quick scan to look
8458 * for any free slots in the list.
8460 * find next empty veb slot, looping back around if necessary
8463 while ((i
< I40E_MAX_VEB
) && (pf
->veb
[i
] != NULL
))
8465 if (i
>= I40E_MAX_VEB
) {
8467 goto err_alloc_veb
; /* out of VEB slots! */
8470 veb
= kzalloc(sizeof(*veb
), GFP_KERNEL
);
8477 veb
->enabled_tc
= 1;
8482 mutex_unlock(&pf
->switch_mutex
);
8487 * i40e_switch_branch_release - Delete a branch of the switch tree
8488 * @branch: where to start deleting
8490 * This uses recursion to find the tips of the branch to be
8491 * removed, deleting until we get back to and can delete this VEB.
8493 static void i40e_switch_branch_release(struct i40e_veb
*branch
)
8495 struct i40e_pf
*pf
= branch
->pf
;
8496 u16 branch_seid
= branch
->seid
;
8497 u16 veb_idx
= branch
->idx
;
8500 /* release any VEBs on this VEB - RECURSION */
8501 for (i
= 0; i
< I40E_MAX_VEB
; i
++) {
8504 if (pf
->veb
[i
]->uplink_seid
== branch
->seid
)
8505 i40e_switch_branch_release(pf
->veb
[i
]);
8508 /* Release the VSIs on this VEB, but not the owner VSI.
8510 * NOTE: Removing the last VSI on a VEB has the SIDE EFFECT of removing
8511 * the VEB itself, so don't use (*branch) after this loop.
8513 for (i
= 0; i
< pf
->num_alloc_vsi
; i
++) {
8516 if (pf
->vsi
[i
]->uplink_seid
== branch_seid
&&
8517 (pf
->vsi
[i
]->flags
& I40E_VSI_FLAG_VEB_OWNER
) == 0) {
8518 i40e_vsi_release(pf
->vsi
[i
]);
8522 /* There's one corner case where the VEB might not have been
8523 * removed, so double check it here and remove it if needed.
8524 * This case happens if the veb was created from the debugfs
8525 * commands and no VSIs were added to it.
8527 if (pf
->veb
[veb_idx
])
8528 i40e_veb_release(pf
->veb
[veb_idx
]);
8532 * i40e_veb_clear - remove veb struct
8533 * @veb: the veb to remove
8535 static void i40e_veb_clear(struct i40e_veb
*veb
)
8541 struct i40e_pf
*pf
= veb
->pf
;
8543 mutex_lock(&pf
->switch_mutex
);
8544 if (pf
->veb
[veb
->idx
] == veb
)
8545 pf
->veb
[veb
->idx
] = NULL
;
8546 mutex_unlock(&pf
->switch_mutex
);
8553 * i40e_veb_release - Delete a VEB and free its resources
8554 * @veb: the VEB being removed
8556 void i40e_veb_release(struct i40e_veb
*veb
)
8558 struct i40e_vsi
*vsi
= NULL
;
8564 /* find the remaining VSI and check for extras */
8565 for (i
= 0; i
< pf
->num_alloc_vsi
; i
++) {
8566 if (pf
->vsi
[i
] && pf
->vsi
[i
]->uplink_seid
== veb
->seid
) {
8572 dev_info(&pf
->pdev
->dev
,
8573 "can't remove VEB %d with %d VSIs left\n",
8578 /* move the remaining VSI to uplink veb */
8579 vsi
->flags
&= ~I40E_VSI_FLAG_VEB_OWNER
;
8580 if (veb
->uplink_seid
) {
8581 vsi
->uplink_seid
= veb
->uplink_seid
;
8582 if (veb
->uplink_seid
== pf
->mac_seid
)
8583 vsi
->veb_idx
= I40E_NO_VEB
;
8585 vsi
->veb_idx
= veb
->veb_idx
;
8588 vsi
->uplink_seid
= pf
->vsi
[pf
->lan_vsi
]->uplink_seid
;
8589 vsi
->veb_idx
= pf
->vsi
[pf
->lan_vsi
]->veb_idx
;
8592 i40e_aq_delete_element(&pf
->hw
, veb
->seid
, NULL
);
8593 i40e_veb_clear(veb
);
8597 * i40e_add_veb - create the VEB in the switch
8598 * @veb: the VEB to be instantiated
8599 * @vsi: the controlling VSI
8601 static int i40e_add_veb(struct i40e_veb
*veb
, struct i40e_vsi
*vsi
)
8603 bool is_default
= false;
8604 bool is_cloud
= false;
8607 /* get a VEB from the hardware */
8608 ret
= i40e_aq_add_veb(&veb
->pf
->hw
, veb
->uplink_seid
, vsi
->seid
,
8609 veb
->enabled_tc
, is_default
,
8610 is_cloud
, &veb
->seid
, NULL
);
8612 dev_info(&veb
->pf
->pdev
->dev
,
8613 "couldn't add VEB, err %d, aq_err %d\n",
8614 ret
, veb
->pf
->hw
.aq
.asq_last_status
);
8618 /* get statistics counter */
8619 ret
= i40e_aq_get_veb_parameters(&veb
->pf
->hw
, veb
->seid
, NULL
, NULL
,
8620 &veb
->stats_idx
, NULL
, NULL
, NULL
);
8622 dev_info(&veb
->pf
->pdev
->dev
,
8623 "couldn't get VEB statistics idx, err %d, aq_err %d\n",
8624 ret
, veb
->pf
->hw
.aq
.asq_last_status
);
8627 ret
= i40e_veb_get_bw_info(veb
);
8629 dev_info(&veb
->pf
->pdev
->dev
,
8630 "couldn't get VEB bw info, err %d, aq_err %d\n",
8631 ret
, veb
->pf
->hw
.aq
.asq_last_status
);
8632 i40e_aq_delete_element(&veb
->pf
->hw
, veb
->seid
, NULL
);
8636 vsi
->uplink_seid
= veb
->seid
;
8637 vsi
->veb_idx
= veb
->idx
;
8638 vsi
->flags
|= I40E_VSI_FLAG_VEB_OWNER
;
8644 * i40e_veb_setup - Set up a VEB
8645 * @pf: board private structure
8646 * @flags: VEB setup flags
8647 * @uplink_seid: the switch element to link to
8648 * @vsi_seid: the initial VSI seid
8649 * @enabled_tc: Enabled TC bit-map
8651 * This allocates the sw VEB structure and links it into the switch
8652 * It is possible and legal for this to be a duplicate of an already
8653 * existing VEB. It is also possible for both uplink and vsi seids
8654 * to be zero, in order to create a floating VEB.
8656 * Returns pointer to the successfully allocated VEB sw struct on
8657 * success, otherwise returns NULL on failure.
8659 struct i40e_veb
*i40e_veb_setup(struct i40e_pf
*pf
, u16 flags
,
8660 u16 uplink_seid
, u16 vsi_seid
,
8663 struct i40e_veb
*veb
, *uplink_veb
= NULL
;
8664 int vsi_idx
, veb_idx
;
8667 /* if one seid is 0, the other must be 0 to create a floating relay */
8668 if ((uplink_seid
== 0 || vsi_seid
== 0) &&
8669 (uplink_seid
+ vsi_seid
!= 0)) {
8670 dev_info(&pf
->pdev
->dev
,
8671 "one, not both seid's are 0: uplink=%d vsi=%d\n",
8672 uplink_seid
, vsi_seid
);
8676 /* make sure there is such a vsi and uplink */
8677 for (vsi_idx
= 0; vsi_idx
< pf
->num_alloc_vsi
; vsi_idx
++)
8678 if (pf
->vsi
[vsi_idx
] && pf
->vsi
[vsi_idx
]->seid
== vsi_seid
)
8680 if (vsi_idx
>= pf
->num_alloc_vsi
&& vsi_seid
!= 0) {
8681 dev_info(&pf
->pdev
->dev
, "vsi seid %d not found\n",
8686 if (uplink_seid
&& uplink_seid
!= pf
->mac_seid
) {
8687 for (veb_idx
= 0; veb_idx
< I40E_MAX_VEB
; veb_idx
++) {
8688 if (pf
->veb
[veb_idx
] &&
8689 pf
->veb
[veb_idx
]->seid
== uplink_seid
) {
8690 uplink_veb
= pf
->veb
[veb_idx
];
8695 dev_info(&pf
->pdev
->dev
,
8696 "uplink seid %d not found\n", uplink_seid
);
8701 /* get veb sw struct */
8702 veb_idx
= i40e_veb_mem_alloc(pf
);
8705 veb
= pf
->veb
[veb_idx
];
8707 veb
->uplink_seid
= uplink_seid
;
8708 veb
->veb_idx
= (uplink_veb
? uplink_veb
->idx
: I40E_NO_VEB
);
8709 veb
->enabled_tc
= (enabled_tc
? enabled_tc
: 0x1);
8711 /* create the VEB in the switch */
8712 ret
= i40e_add_veb(veb
, pf
->vsi
[vsi_idx
]);
8715 if (vsi_idx
== pf
->lan_vsi
)
8716 pf
->lan_veb
= veb
->idx
;
8721 i40e_veb_clear(veb
);
8727 * i40e_setup_pf_switch_element - set pf vars based on switch type
8728 * @pf: board private structure
8729 * @ele: element we are building info from
8730 * @num_reported: total number of elements
8731 * @printconfig: should we print the contents
8733 * helper function to assist in extracting a few useful SEID values.
8735 static void i40e_setup_pf_switch_element(struct i40e_pf
*pf
,
8736 struct i40e_aqc_switch_config_element_resp
*ele
,
8737 u16 num_reported
, bool printconfig
)
8739 u16 downlink_seid
= le16_to_cpu(ele
->downlink_seid
);
8740 u16 uplink_seid
= le16_to_cpu(ele
->uplink_seid
);
8741 u8 element_type
= ele
->element_type
;
8742 u16 seid
= le16_to_cpu(ele
->seid
);
8745 dev_info(&pf
->pdev
->dev
,
8746 "type=%d seid=%d uplink=%d downlink=%d\n",
8747 element_type
, seid
, uplink_seid
, downlink_seid
);
8749 switch (element_type
) {
8750 case I40E_SWITCH_ELEMENT_TYPE_MAC
:
8751 pf
->mac_seid
= seid
;
8753 case I40E_SWITCH_ELEMENT_TYPE_VEB
:
8755 if (uplink_seid
!= pf
->mac_seid
)
8757 if (pf
->lan_veb
== I40E_NO_VEB
) {
8760 /* find existing or else empty VEB */
8761 for (v
= 0; v
< I40E_MAX_VEB
; v
++) {
8762 if (pf
->veb
[v
] && (pf
->veb
[v
]->seid
== seid
)) {
8767 if (pf
->lan_veb
== I40E_NO_VEB
) {
8768 v
= i40e_veb_mem_alloc(pf
);
8775 pf
->veb
[pf
->lan_veb
]->seid
= seid
;
8776 pf
->veb
[pf
->lan_veb
]->uplink_seid
= pf
->mac_seid
;
8777 pf
->veb
[pf
->lan_veb
]->pf
= pf
;
8778 pf
->veb
[pf
->lan_veb
]->veb_idx
= I40E_NO_VEB
;
8780 case I40E_SWITCH_ELEMENT_TYPE_VSI
:
8781 if (num_reported
!= 1)
8783 /* This is immediately after a reset so we can assume this is
8786 pf
->mac_seid
= uplink_seid
;
8787 pf
->pf_seid
= downlink_seid
;
8788 pf
->main_vsi_seid
= seid
;
8790 dev_info(&pf
->pdev
->dev
,
8791 "pf_seid=%d main_vsi_seid=%d\n",
8792 pf
->pf_seid
, pf
->main_vsi_seid
);
8794 case I40E_SWITCH_ELEMENT_TYPE_PF
:
8795 case I40E_SWITCH_ELEMENT_TYPE_VF
:
8796 case I40E_SWITCH_ELEMENT_TYPE_EMP
:
8797 case I40E_SWITCH_ELEMENT_TYPE_BMC
:
8798 case I40E_SWITCH_ELEMENT_TYPE_PE
:
8799 case I40E_SWITCH_ELEMENT_TYPE_PA
:
8800 /* ignore these for now */
8803 dev_info(&pf
->pdev
->dev
, "unknown element type=%d seid=%d\n",
8804 element_type
, seid
);
8810 * i40e_fetch_switch_configuration - Get switch config from firmware
8811 * @pf: board private structure
8812 * @printconfig: should we print the contents
8814 * Get the current switch configuration from the device and
8815 * extract a few useful SEID values.
8817 int i40e_fetch_switch_configuration(struct i40e_pf
*pf
, bool printconfig
)
8819 struct i40e_aqc_get_switch_config_resp
*sw_config
;
8825 aq_buf
= kzalloc(I40E_AQ_LARGE_BUF
, GFP_KERNEL
);
8829 sw_config
= (struct i40e_aqc_get_switch_config_resp
*)aq_buf
;
8831 u16 num_reported
, num_total
;
8833 ret
= i40e_aq_get_switch_config(&pf
->hw
, sw_config
,
8837 dev_info(&pf
->pdev
->dev
,
8838 "get switch config failed %d aq_err=%x\n",
8839 ret
, pf
->hw
.aq
.asq_last_status
);
8844 num_reported
= le16_to_cpu(sw_config
->header
.num_reported
);
8845 num_total
= le16_to_cpu(sw_config
->header
.num_total
);
8848 dev_info(&pf
->pdev
->dev
,
8849 "header: %d reported %d total\n",
8850 num_reported
, num_total
);
8852 for (i
= 0; i
< num_reported
; i
++) {
8853 struct i40e_aqc_switch_config_element_resp
*ele
=
8854 &sw_config
->element
[i
];
8856 i40e_setup_pf_switch_element(pf
, ele
, num_reported
,
8859 } while (next_seid
!= 0);
8866 * i40e_setup_pf_switch - Setup the HW switch on startup or after reset
8867 * @pf: board private structure
8868 * @reinit: if the Main VSI needs to re-initialized.
8870 * Returns 0 on success, negative value on failure
8872 static int i40e_setup_pf_switch(struct i40e_pf
*pf
, bool reinit
)
8876 /* find out what's out there already */
8877 ret
= i40e_fetch_switch_configuration(pf
, false);
8879 dev_info(&pf
->pdev
->dev
,
8880 "couldn't fetch switch config, err %d, aq_err %d\n",
8881 ret
, pf
->hw
.aq
.asq_last_status
);
8884 i40e_pf_reset_stats(pf
);
8886 /* first time setup */
8887 if (pf
->lan_vsi
== I40E_NO_VSI
|| reinit
) {
8888 struct i40e_vsi
*vsi
= NULL
;
8891 /* Set up the PF VSI associated with the PF's main VSI
8892 * that is already in the HW switch
8894 if (pf
->lan_veb
!= I40E_NO_VEB
&& pf
->veb
[pf
->lan_veb
])
8895 uplink_seid
= pf
->veb
[pf
->lan_veb
]->seid
;
8897 uplink_seid
= pf
->mac_seid
;
8898 if (pf
->lan_vsi
== I40E_NO_VSI
)
8899 vsi
= i40e_vsi_setup(pf
, I40E_VSI_MAIN
, uplink_seid
, 0);
8901 vsi
= i40e_vsi_reinit_setup(pf
->vsi
[pf
->lan_vsi
]);
8903 dev_info(&pf
->pdev
->dev
, "setup of MAIN VSI failed\n");
8904 i40e_fdir_teardown(pf
);
8908 /* force a reset of TC and queue layout configurations */
8909 u8 enabled_tc
= pf
->vsi
[pf
->lan_vsi
]->tc_config
.enabled_tc
;
8910 pf
->vsi
[pf
->lan_vsi
]->tc_config
.enabled_tc
= 0;
8911 pf
->vsi
[pf
->lan_vsi
]->seid
= pf
->main_vsi_seid
;
8912 i40e_vsi_config_tc(pf
->vsi
[pf
->lan_vsi
], enabled_tc
);
8914 i40e_vlan_stripping_disable(pf
->vsi
[pf
->lan_vsi
]);
8916 i40e_fdir_sb_setup(pf
);
8918 /* Setup static PF queue filter control settings */
8919 ret
= i40e_setup_pf_filter_control(pf
);
8921 dev_info(&pf
->pdev
->dev
, "setup_pf_filter_control failed: %d\n",
8923 /* Failure here should not stop continuing other steps */
8926 /* enable RSS in the HW, even for only one queue, as the stack can use
8929 if ((pf
->flags
& I40E_FLAG_RSS_ENABLED
))
8930 i40e_config_rss(pf
);
8932 /* fill in link information and enable LSE reporting */
8933 i40e_update_link_info(&pf
->hw
, true);
8934 i40e_link_event(pf
);
8936 /* Initialize user-specific link properties */
8937 pf
->fc_autoneg_status
= ((pf
->hw
.phy
.link_info
.an_info
&
8938 I40E_AQ_AN_COMPLETED
) ? true : false);
8940 /* fill in link information and enable LSE reporting */
8941 i40e_update_link_info(&pf
->hw
, true);
8942 i40e_link_event(pf
);
8944 /* Initialize user-specific link properties */
8945 pf
->fc_autoneg_status
= ((pf
->hw
.phy
.link_info
.an_info
&
8946 I40E_AQ_AN_COMPLETED
) ? true : false);
8954 * i40e_determine_queue_usage - Work out queue distribution
8955 * @pf: board private structure
8957 static void i40e_determine_queue_usage(struct i40e_pf
*pf
)
8961 pf
->num_lan_qps
= 0;
8963 pf
->num_fcoe_qps
= 0;
8966 /* Find the max queues to be put into basic use. We'll always be
8967 * using TC0, whether or not DCB is running, and TC0 will get the
8970 queues_left
= pf
->hw
.func_caps
.num_tx_qp
;
8972 if ((queues_left
== 1) ||
8973 !(pf
->flags
& I40E_FLAG_MSIX_ENABLED
)) {
8974 /* one qp for PF, no queues for anything else */
8976 pf
->rss_size
= pf
->num_lan_qps
= 1;
8978 /* make sure all the fancies are disabled */
8979 pf
->flags
&= ~(I40E_FLAG_RSS_ENABLED
|
8981 I40E_FLAG_FCOE_ENABLED
|
8983 I40E_FLAG_FD_SB_ENABLED
|
8984 I40E_FLAG_FD_ATR_ENABLED
|
8985 I40E_FLAG_DCB_CAPABLE
|
8986 I40E_FLAG_SRIOV_ENABLED
|
8987 I40E_FLAG_VMDQ_ENABLED
);
8988 } else if (!(pf
->flags
& (I40E_FLAG_RSS_ENABLED
|
8989 I40E_FLAG_FD_SB_ENABLED
|
8990 I40E_FLAG_FD_ATR_ENABLED
|
8991 I40E_FLAG_DCB_CAPABLE
))) {
8993 pf
->rss_size
= pf
->num_lan_qps
= 1;
8994 queues_left
-= pf
->num_lan_qps
;
8996 pf
->flags
&= ~(I40E_FLAG_RSS_ENABLED
|
8998 I40E_FLAG_FCOE_ENABLED
|
9000 I40E_FLAG_FD_SB_ENABLED
|
9001 I40E_FLAG_FD_ATR_ENABLED
|
9002 I40E_FLAG_DCB_ENABLED
|
9003 I40E_FLAG_VMDQ_ENABLED
);
9005 /* Not enough queues for all TCs */
9006 if ((pf
->flags
& I40E_FLAG_DCB_CAPABLE
) &&
9007 (queues_left
< I40E_MAX_TRAFFIC_CLASS
)) {
9008 pf
->flags
&= ~I40E_FLAG_DCB_CAPABLE
;
9009 dev_info(&pf
->pdev
->dev
, "not enough queues for DCB. DCB is disabled.\n");
9011 pf
->num_lan_qps
= pf
->rss_size_max
;
9012 queues_left
-= pf
->num_lan_qps
;
9016 if (pf
->flags
& I40E_FLAG_FCOE_ENABLED
) {
9017 if (I40E_DEFAULT_FCOE
<= queues_left
) {
9018 pf
->num_fcoe_qps
= I40E_DEFAULT_FCOE
;
9019 } else if (I40E_MINIMUM_FCOE
<= queues_left
) {
9020 pf
->num_fcoe_qps
= I40E_MINIMUM_FCOE
;
9022 pf
->num_fcoe_qps
= 0;
9023 pf
->flags
&= ~I40E_FLAG_FCOE_ENABLED
;
9024 dev_info(&pf
->pdev
->dev
, "not enough queues for FCoE. FCoE feature will be disabled\n");
9027 queues_left
-= pf
->num_fcoe_qps
;
9031 if (pf
->flags
& I40E_FLAG_FD_SB_ENABLED
) {
9032 if (queues_left
> 1) {
9033 queues_left
-= 1; /* save 1 queue for FD */
9035 pf
->flags
&= ~I40E_FLAG_FD_SB_ENABLED
;
9036 dev_info(&pf
->pdev
->dev
, "not enough queues for Flow Director. Flow Director feature is disabled\n");
9040 if ((pf
->flags
& I40E_FLAG_SRIOV_ENABLED
) &&
9041 pf
->num_vf_qps
&& pf
->num_req_vfs
&& queues_left
) {
9042 pf
->num_req_vfs
= min_t(int, pf
->num_req_vfs
,
9043 (queues_left
/ pf
->num_vf_qps
));
9044 queues_left
-= (pf
->num_req_vfs
* pf
->num_vf_qps
);
9047 if ((pf
->flags
& I40E_FLAG_VMDQ_ENABLED
) &&
9048 pf
->num_vmdq_vsis
&& pf
->num_vmdq_qps
&& queues_left
) {
9049 pf
->num_vmdq_vsis
= min_t(int, pf
->num_vmdq_vsis
,
9050 (queues_left
/ pf
->num_vmdq_qps
));
9051 queues_left
-= (pf
->num_vmdq_vsis
* pf
->num_vmdq_qps
);
9054 pf
->queues_left
= queues_left
;
9056 dev_info(&pf
->pdev
->dev
, "fcoe queues = %d\n", pf
->num_fcoe_qps
);
9061 * i40e_setup_pf_filter_control - Setup PF static filter control
9062 * @pf: PF to be setup
9064 * i40e_setup_pf_filter_control sets up a pf's initial filter control
9065 * settings. If PE/FCoE are enabled then it will also set the per PF
9066 * based filter sizes required for them. It also enables Flow director,
9067 * ethertype and macvlan type filter settings for the pf.
9069 * Returns 0 on success, negative on failure
9071 static int i40e_setup_pf_filter_control(struct i40e_pf
*pf
)
9073 struct i40e_filter_control_settings
*settings
= &pf
->filter_settings
;
9075 settings
->hash_lut_size
= I40E_HASH_LUT_SIZE_128
;
9077 /* Flow Director is enabled */
9078 if (pf
->flags
& (I40E_FLAG_FD_SB_ENABLED
| I40E_FLAG_FD_ATR_ENABLED
))
9079 settings
->enable_fdir
= true;
9081 /* Ethtype and MACVLAN filters enabled for PF */
9082 settings
->enable_ethtype
= true;
9083 settings
->enable_macvlan
= true;
9085 if (i40e_set_filter_control(&pf
->hw
, settings
))
9091 #define INFO_STRING_LEN 255
9092 static void i40e_print_features(struct i40e_pf
*pf
)
9094 struct i40e_hw
*hw
= &pf
->hw
;
9097 string
= kzalloc(INFO_STRING_LEN
, GFP_KERNEL
);
9099 dev_err(&pf
->pdev
->dev
, "Features string allocation failed\n");
9105 buf
+= sprintf(string
, "Features: PF-id[%d] ", hw
->pf_id
);
9106 #ifdef CONFIG_PCI_IOV
9107 buf
+= sprintf(buf
, "VFs: %d ", pf
->num_req_vfs
);
9109 buf
+= sprintf(buf
, "VSIs: %d QP: %d ", pf
->hw
.func_caps
.num_vsis
,
9110 pf
->vsi
[pf
->lan_vsi
]->num_queue_pairs
);
9112 if (pf
->flags
& I40E_FLAG_RSS_ENABLED
)
9113 buf
+= sprintf(buf
, "RSS ");
9114 if (pf
->flags
& I40E_FLAG_FD_ATR_ENABLED
)
9115 buf
+= sprintf(buf
, "FD_ATR ");
9116 if (pf
->flags
& I40E_FLAG_FD_SB_ENABLED
) {
9117 buf
+= sprintf(buf
, "FD_SB ");
9118 buf
+= sprintf(buf
, "NTUPLE ");
9120 if (pf
->flags
& I40E_FLAG_DCB_CAPABLE
)
9121 buf
+= sprintf(buf
, "DCB ");
9122 if (pf
->flags
& I40E_FLAG_PTP
)
9123 buf
+= sprintf(buf
, "PTP ");
9125 if (pf
->flags
& I40E_FLAG_FCOE_ENABLED
)
9126 buf
+= sprintf(buf
, "FCOE ");
9129 BUG_ON(buf
> (string
+ INFO_STRING_LEN
));
9130 dev_info(&pf
->pdev
->dev
, "%s\n", string
);
9135 * i40e_probe - Device initialization routine
9136 * @pdev: PCI device information struct
9137 * @ent: entry in i40e_pci_tbl
9139 * i40e_probe initializes a pf identified by a pci_dev structure.
9140 * The OS initialization, configuring of the pf private structure,
9141 * and a hardware reset occur.
9143 * Returns 0 on success, negative on failure
9145 static int i40e_probe(struct pci_dev
*pdev
, const struct pci_device_id
*ent
)
9149 static u16 pfs_found
;
9155 err
= pci_enable_device_mem(pdev
);
9159 /* set up for high or low dma */
9160 err
= dma_set_mask_and_coherent(&pdev
->dev
, DMA_BIT_MASK(64));
9162 err
= dma_set_mask_and_coherent(&pdev
->dev
, DMA_BIT_MASK(32));
9165 "DMA configuration failed: 0x%x\n", err
);
9170 /* set up pci connections */
9171 err
= pci_request_selected_regions(pdev
, pci_select_bars(pdev
,
9172 IORESOURCE_MEM
), i40e_driver_name
);
9174 dev_info(&pdev
->dev
,
9175 "pci_request_selected_regions failed %d\n", err
);
9179 pci_enable_pcie_error_reporting(pdev
);
9180 pci_set_master(pdev
);
9182 /* Now that we have a PCI connection, we need to do the
9183 * low level device setup. This is primarily setting up
9184 * the Admin Queue structures and then querying for the
9185 * device's current profile information.
9187 pf
= kzalloc(sizeof(*pf
), GFP_KERNEL
);
9194 set_bit(__I40E_DOWN
, &pf
->state
);
9198 hw
->hw_addr
= ioremap(pci_resource_start(pdev
, 0),
9199 pci_resource_len(pdev
, 0));
9202 dev_info(&pdev
->dev
, "ioremap(0x%04x, 0x%04x) failed: 0x%x\n",
9203 (unsigned int)pci_resource_start(pdev
, 0),
9204 (unsigned int)pci_resource_len(pdev
, 0), err
);
9207 hw
->vendor_id
= pdev
->vendor
;
9208 hw
->device_id
= pdev
->device
;
9209 pci_read_config_byte(pdev
, PCI_REVISION_ID
, &hw
->revision_id
);
9210 hw
->subsystem_vendor_id
= pdev
->subsystem_vendor
;
9211 hw
->subsystem_device_id
= pdev
->subsystem_device
;
9212 hw
->bus
.device
= PCI_SLOT(pdev
->devfn
);
9213 hw
->bus
.func
= PCI_FUNC(pdev
->devfn
);
9214 pf
->instance
= pfs_found
;
9217 pf
->msg_enable
= pf
->hw
.debug_mask
;
9218 pf
->msg_enable
= debug
;
9221 /* do a special CORER for clearing PXE mode once at init */
9222 if (hw
->revision_id
== 0 &&
9223 (rd32(hw
, I40E_GLLAN_RCTL_0
) & I40E_GLLAN_RCTL_0_PXE_MODE_MASK
)) {
9224 wr32(hw
, I40E_GLGEN_RTRIG
, I40E_GLGEN_RTRIG_CORER_MASK
);
9229 i40e_clear_pxe_mode(hw
);
9232 /* Reset here to make sure all is clean and to define PF 'n' */
9234 err
= i40e_pf_reset(hw
);
9236 dev_info(&pdev
->dev
, "Initial pf_reset failed: %d\n", err
);
9241 hw
->aq
.num_arq_entries
= I40E_AQ_LEN
;
9242 hw
->aq
.num_asq_entries
= I40E_AQ_LEN
;
9243 hw
->aq
.arq_buf_size
= I40E_MAX_AQ_BUF_SIZE
;
9244 hw
->aq
.asq_buf_size
= I40E_MAX_AQ_BUF_SIZE
;
9245 pf
->adminq_work_limit
= I40E_AQ_WORK_LIMIT
;
9247 snprintf(pf
->int_name
, sizeof(pf
->int_name
) - 1,
9249 dev_driver_string(&pf
->pdev
->dev
), dev_name(&pdev
->dev
));
9251 err
= i40e_init_shared_code(hw
);
9253 dev_info(&pdev
->dev
, "init_shared_code failed: %d\n", err
);
9257 /* set up a default setting for link flow control */
9258 pf
->hw
.fc
.requested_mode
= I40E_FC_NONE
;
9260 err
= i40e_init_adminq(hw
);
9261 dev_info(&pdev
->dev
, "%s\n", i40e_fw_version_str(hw
));
9263 dev_info(&pdev
->dev
,
9264 "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");
9268 if (hw
->aq
.api_maj_ver
== I40E_FW_API_VERSION_MAJOR
&&
9269 hw
->aq
.api_min_ver
> I40E_FW_API_VERSION_MINOR
)
9270 dev_info(&pdev
->dev
,
9271 "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");
9272 else if (hw
->aq
.api_maj_ver
< I40E_FW_API_VERSION_MAJOR
||
9273 hw
->aq
.api_min_ver
< (I40E_FW_API_VERSION_MINOR
- 1))
9274 dev_info(&pdev
->dev
,
9275 "The driver for the device detected an older version of the NVM image than expected. Please update the NVM image.\n");
9278 i40e_verify_eeprom(pf
);
9280 /* Rev 0 hardware was never productized */
9281 if (hw
->revision_id
< 1)
9282 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");
9284 i40e_clear_pxe_mode(hw
);
9285 err
= i40e_get_capabilities(pf
);
9287 goto err_adminq_setup
;
9289 err
= i40e_sw_init(pf
);
9291 dev_info(&pdev
->dev
, "sw_init failed: %d\n", err
);
9295 err
= i40e_init_lan_hmc(hw
, hw
->func_caps
.num_tx_qp
,
9296 hw
->func_caps
.num_rx_qp
,
9297 pf
->fcoe_hmc_cntx_num
, pf
->fcoe_hmc_filt_num
);
9299 dev_info(&pdev
->dev
, "init_lan_hmc failed: %d\n", err
);
9300 goto err_init_lan_hmc
;
9303 err
= i40e_configure_lan_hmc(hw
, I40E_HMC_MODEL_DIRECT_ONLY
);
9305 dev_info(&pdev
->dev
, "configure_lan_hmc failed: %d\n", err
);
9307 goto err_configure_lan_hmc
;
9310 /* Disable LLDP for NICs that have firmware versions lower than v4.3.
9311 * Ignore error return codes because if it was already disabled via
9312 * hardware settings this will fail
9314 if (((pf
->hw
.aq
.fw_maj_ver
== 4) && (pf
->hw
.aq
.fw_min_ver
< 3)) ||
9315 (pf
->hw
.aq
.fw_maj_ver
< 4)) {
9316 dev_info(&pdev
->dev
, "Stopping firmware LLDP agent.\n");
9317 i40e_aq_stop_lldp(hw
, true, NULL
);
9320 i40e_get_mac_addr(hw
, hw
->mac
.addr
);
9321 if (!is_valid_ether_addr(hw
->mac
.addr
)) {
9322 dev_info(&pdev
->dev
, "invalid MAC address %pM\n", hw
->mac
.addr
);
9326 dev_info(&pdev
->dev
, "MAC address: %pM\n", hw
->mac
.addr
);
9327 ether_addr_copy(hw
->mac
.perm_addr
, hw
->mac
.addr
);
9328 i40e_get_port_mac_addr(hw
, hw
->mac
.port_addr
);
9329 if (is_valid_ether_addr(hw
->mac
.port_addr
))
9330 pf
->flags
|= I40E_FLAG_PORT_ID_VALID
;
9332 err
= i40e_get_san_mac_addr(hw
, hw
->mac
.san_addr
);
9334 dev_info(&pdev
->dev
,
9335 "(non-fatal) SAN MAC retrieval failed: %d\n", err
);
9336 if (!is_valid_ether_addr(hw
->mac
.san_addr
)) {
9337 dev_warn(&pdev
->dev
, "invalid SAN MAC address %pM, falling back to LAN MAC\n",
9339 ether_addr_copy(hw
->mac
.san_addr
, hw
->mac
.addr
);
9341 dev_info(&pf
->pdev
->dev
, "SAN MAC: %pM\n", hw
->mac
.san_addr
);
9342 #endif /* I40E_FCOE */
9344 pci_set_drvdata(pdev
, pf
);
9345 pci_save_state(pdev
);
9346 #ifdef CONFIG_I40E_DCB
9347 err
= i40e_init_pf_dcb(pf
);
9349 dev_info(&pdev
->dev
, "DCB init failed %d, disabled\n", err
);
9350 pf
->flags
&= ~I40E_FLAG_DCB_CAPABLE
;
9351 /* Continue without DCB enabled */
9353 #endif /* CONFIG_I40E_DCB */
9355 /* set up periodic task facility */
9356 setup_timer(&pf
->service_timer
, i40e_service_timer
, (unsigned long)pf
);
9357 pf
->service_timer_period
= HZ
;
9359 INIT_WORK(&pf
->service_task
, i40e_service_task
);
9360 clear_bit(__I40E_SERVICE_SCHED
, &pf
->state
);
9361 pf
->flags
|= I40E_FLAG_NEED_LINK_UPDATE
;
9362 pf
->link_check_timeout
= jiffies
;
9364 /* WoL defaults to disabled */
9366 device_set_wakeup_enable(&pf
->pdev
->dev
, pf
->wol_en
);
9368 /* set up the main switch operations */
9369 i40e_determine_queue_usage(pf
);
9370 i40e_init_interrupt_scheme(pf
);
9372 /* The number of VSIs reported by the FW is the minimum guaranteed
9373 * to us; HW supports far more and we share the remaining pool with
9374 * the other PFs. We allocate space for more than the guarantee with
9375 * the understanding that we might not get them all later.
9377 if (pf
->hw
.func_caps
.num_vsis
< I40E_MIN_VSI_ALLOC
)
9378 pf
->num_alloc_vsi
= I40E_MIN_VSI_ALLOC
;
9380 pf
->num_alloc_vsi
= pf
->hw
.func_caps
.num_vsis
;
9382 /* Set up the *vsi struct and our local tracking of the MAIN PF vsi. */
9383 len
= sizeof(struct i40e_vsi
*) * pf
->num_alloc_vsi
;
9384 pf
->vsi
= kzalloc(len
, GFP_KERNEL
);
9387 goto err_switch_setup
;
9390 err
= i40e_setup_pf_switch(pf
, false);
9392 dev_info(&pdev
->dev
, "setup_pf_switch failed: %d\n", err
);
9395 /* if FDIR VSI was set up, start it now */
9396 for (i
= 0; i
< pf
->num_alloc_vsi
; i
++) {
9397 if (pf
->vsi
[i
] && pf
->vsi
[i
]->type
== I40E_VSI_FDIR
) {
9398 i40e_vsi_open(pf
->vsi
[i
]);
9403 /* driver is only interested in link up/down and module qualification
9404 * reports from firmware
9406 err
= i40e_aq_set_phy_int_mask(&pf
->hw
,
9407 I40E_AQ_EVENT_LINK_UPDOWN
|
9408 I40E_AQ_EVENT_MODULE_QUAL_FAIL
, NULL
);
9410 dev_info(&pf
->pdev
->dev
, "set phy mask fail, aq_err %d\n", err
);
9413 err
= i40e_aq_set_link_restart_an(&pf
->hw
, true, NULL
);
9415 dev_info(&pf
->pdev
->dev
, "link restart failed, aq_err=%d\n",
9416 pf
->hw
.aq
.asq_last_status
);
9419 /* The main driver is (mostly) up and happy. We need to set this state
9420 * before setting up the misc vector or we get a race and the vector
9421 * ends up disabled forever.
9423 clear_bit(__I40E_DOWN
, &pf
->state
);
9425 /* In case of MSIX we are going to setup the misc vector right here
9426 * to handle admin queue events etc. In case of legacy and MSI
9427 * the misc functionality and queue processing is combined in
9428 * the same vector and that gets setup at open.
9430 if (pf
->flags
& I40E_FLAG_MSIX_ENABLED
) {
9431 err
= i40e_setup_misc_vector(pf
);
9433 dev_info(&pdev
->dev
,
9434 "setup of misc vector failed: %d\n", err
);
9439 #ifdef CONFIG_PCI_IOV
9440 /* prep for VF support */
9441 if ((pf
->flags
& I40E_FLAG_SRIOV_ENABLED
) &&
9442 (pf
->flags
& I40E_FLAG_MSIX_ENABLED
) &&
9443 !test_bit(__I40E_BAD_EEPROM
, &pf
->state
)) {
9446 /* disable link interrupts for VFs */
9447 val
= rd32(hw
, I40E_PFGEN_PORTMDIO_NUM
);
9448 val
&= ~I40E_PFGEN_PORTMDIO_NUM_VFLINK_STAT_ENA_MASK
;
9449 wr32(hw
, I40E_PFGEN_PORTMDIO_NUM
, val
);
9452 if (pci_num_vf(pdev
)) {
9453 dev_info(&pdev
->dev
,
9454 "Active VFs found, allocating resources.\n");
9455 err
= i40e_alloc_vfs(pf
, pci_num_vf(pdev
));
9457 dev_info(&pdev
->dev
,
9458 "Error %d allocating resources for existing VFs\n",
9462 #endif /* CONFIG_PCI_IOV */
9466 i40e_dbg_pf_init(pf
);
9468 /* tell the firmware that we're starting */
9469 i40e_send_version(pf
);
9471 /* since everything's happy, start the service_task timer */
9472 mod_timer(&pf
->service_timer
,
9473 round_jiffies(jiffies
+ pf
->service_timer_period
));
9476 /* create FCoE interface */
9477 i40e_fcoe_vsi_setup(pf
);
9480 /* Get the negotiated link width and speed from PCI config space */
9481 pcie_capability_read_word(pf
->pdev
, PCI_EXP_LNKSTA
, &link_status
);
9483 i40e_set_pci_config_data(hw
, link_status
);
9485 dev_info(&pdev
->dev
, "PCI-Express: %s %s\n",
9486 (hw
->bus
.speed
== i40e_bus_speed_8000
? "Speed 8.0GT/s" :
9487 hw
->bus
.speed
== i40e_bus_speed_5000
? "Speed 5.0GT/s" :
9488 hw
->bus
.speed
== i40e_bus_speed_2500
? "Speed 2.5GT/s" :
9490 (hw
->bus
.width
== i40e_bus_width_pcie_x8
? "Width x8" :
9491 hw
->bus
.width
== i40e_bus_width_pcie_x4
? "Width x4" :
9492 hw
->bus
.width
== i40e_bus_width_pcie_x2
? "Width x2" :
9493 hw
->bus
.width
== i40e_bus_width_pcie_x1
? "Width x1" :
9496 if (hw
->bus
.width
< i40e_bus_width_pcie_x8
||
9497 hw
->bus
.speed
< i40e_bus_speed_8000
) {
9498 dev_warn(&pdev
->dev
, "PCI-Express bandwidth available for this device may be insufficient for optimal performance.\n");
9499 dev_warn(&pdev
->dev
, "Please move the device to a different PCI-e link with more lanes and/or higher transfer rate.\n");
9502 /* print a string summarizing features */
9503 i40e_print_features(pf
);
9507 /* Unwind what we've done if something failed in the setup */
9509 set_bit(__I40E_DOWN
, &pf
->state
);
9510 i40e_clear_interrupt_scheme(pf
);
9513 i40e_reset_interrupt_capability(pf
);
9514 del_timer_sync(&pf
->service_timer
);
9516 err_configure_lan_hmc
:
9517 (void)i40e_shutdown_lan_hmc(hw
);
9520 kfree(pf
->irq_pile
);
9523 (void)i40e_shutdown_adminq(hw
);
9525 iounmap(hw
->hw_addr
);
9529 pci_disable_pcie_error_reporting(pdev
);
9530 pci_release_selected_regions(pdev
,
9531 pci_select_bars(pdev
, IORESOURCE_MEM
));
9534 pci_disable_device(pdev
);
9539 * i40e_remove - Device removal routine
9540 * @pdev: PCI device information struct
9542 * i40e_remove is called by the PCI subsystem to alert the driver
9543 * that is should release a PCI device. This could be caused by a
9544 * Hot-Plug event, or because the driver is going to be removed from
9547 static void i40e_remove(struct pci_dev
*pdev
)
9549 struct i40e_pf
*pf
= pci_get_drvdata(pdev
);
9550 i40e_status ret_code
;
9553 i40e_dbg_pf_exit(pf
);
9557 /* no more scheduling of any task */
9558 set_bit(__I40E_DOWN
, &pf
->state
);
9559 del_timer_sync(&pf
->service_timer
);
9560 cancel_work_sync(&pf
->service_task
);
9561 i40e_fdir_teardown(pf
);
9563 if (pf
->flags
& I40E_FLAG_SRIOV_ENABLED
) {
9565 pf
->flags
&= ~I40E_FLAG_SRIOV_ENABLED
;
9568 i40e_fdir_teardown(pf
);
9570 /* If there is a switch structure or any orphans, remove them.
9571 * This will leave only the PF's VSI remaining.
9573 for (i
= 0; i
< I40E_MAX_VEB
; i
++) {
9577 if (pf
->veb
[i
]->uplink_seid
== pf
->mac_seid
||
9578 pf
->veb
[i
]->uplink_seid
== 0)
9579 i40e_switch_branch_release(pf
->veb
[i
]);
9582 /* Now we can shutdown the PF's VSI, just before we kill
9585 if (pf
->vsi
[pf
->lan_vsi
])
9586 i40e_vsi_release(pf
->vsi
[pf
->lan_vsi
]);
9588 /* shutdown and destroy the HMC */
9589 if (pf
->hw
.hmc
.hmc_obj
) {
9590 ret_code
= i40e_shutdown_lan_hmc(&pf
->hw
);
9592 dev_warn(&pdev
->dev
,
9593 "Failed to destroy the HMC resources: %d\n",
9597 /* shutdown the adminq */
9598 ret_code
= i40e_shutdown_adminq(&pf
->hw
);
9600 dev_warn(&pdev
->dev
,
9601 "Failed to destroy the Admin Queue resources: %d\n",
9604 /* Clear all dynamic memory lists of rings, q_vectors, and VSIs */
9605 i40e_clear_interrupt_scheme(pf
);
9606 for (i
= 0; i
< pf
->num_alloc_vsi
; i
++) {
9608 i40e_vsi_clear_rings(pf
->vsi
[i
]);
9609 i40e_vsi_clear(pf
->vsi
[i
]);
9614 for (i
= 0; i
< I40E_MAX_VEB
; i
++) {
9620 kfree(pf
->irq_pile
);
9623 iounmap(pf
->hw
.hw_addr
);
9625 pci_release_selected_regions(pdev
,
9626 pci_select_bars(pdev
, IORESOURCE_MEM
));
9628 pci_disable_pcie_error_reporting(pdev
);
9629 pci_disable_device(pdev
);
9633 * i40e_pci_error_detected - warning that something funky happened in PCI land
9634 * @pdev: PCI device information struct
9636 * Called to warn that something happened and the error handling steps
9637 * are in progress. Allows the driver to quiesce things, be ready for
9640 static pci_ers_result_t
i40e_pci_error_detected(struct pci_dev
*pdev
,
9641 enum pci_channel_state error
)
9643 struct i40e_pf
*pf
= pci_get_drvdata(pdev
);
9645 dev_info(&pdev
->dev
, "%s: error %d\n", __func__
, error
);
9647 /* shutdown all operations */
9648 if (!test_bit(__I40E_SUSPENDED
, &pf
->state
)) {
9650 i40e_prep_for_reset(pf
);
9654 /* Request a slot reset */
9655 return PCI_ERS_RESULT_NEED_RESET
;
9659 * i40e_pci_error_slot_reset - a PCI slot reset just happened
9660 * @pdev: PCI device information struct
9662 * Called to find if the driver can work with the device now that
9663 * the pci slot has been reset. If a basic connection seems good
9664 * (registers are readable and have sane content) then return a
9665 * happy little PCI_ERS_RESULT_xxx.
9667 static pci_ers_result_t
i40e_pci_error_slot_reset(struct pci_dev
*pdev
)
9669 struct i40e_pf
*pf
= pci_get_drvdata(pdev
);
9670 pci_ers_result_t result
;
9674 dev_info(&pdev
->dev
, "%s\n", __func__
);
9675 if (pci_enable_device_mem(pdev
)) {
9676 dev_info(&pdev
->dev
,
9677 "Cannot re-enable PCI device after reset.\n");
9678 result
= PCI_ERS_RESULT_DISCONNECT
;
9680 pci_set_master(pdev
);
9681 pci_restore_state(pdev
);
9682 pci_save_state(pdev
);
9683 pci_wake_from_d3(pdev
, false);
9685 reg
= rd32(&pf
->hw
, I40E_GLGEN_RTRIG
);
9687 result
= PCI_ERS_RESULT_RECOVERED
;
9689 result
= PCI_ERS_RESULT_DISCONNECT
;
9692 err
= pci_cleanup_aer_uncorrect_error_status(pdev
);
9694 dev_info(&pdev
->dev
,
9695 "pci_cleanup_aer_uncorrect_error_status failed 0x%0x\n",
9697 /* non-fatal, continue */
9704 * i40e_pci_error_resume - restart operations after PCI error recovery
9705 * @pdev: PCI device information struct
9707 * Called to allow the driver to bring things back up after PCI error
9708 * and/or reset recovery has finished.
9710 static void i40e_pci_error_resume(struct pci_dev
*pdev
)
9712 struct i40e_pf
*pf
= pci_get_drvdata(pdev
);
9714 dev_info(&pdev
->dev
, "%s\n", __func__
);
9715 if (test_bit(__I40E_SUSPENDED
, &pf
->state
))
9719 i40e_handle_reset_warning(pf
);
9724 * i40e_shutdown - PCI callback for shutting down
9725 * @pdev: PCI device information struct
9727 static void i40e_shutdown(struct pci_dev
*pdev
)
9729 struct i40e_pf
*pf
= pci_get_drvdata(pdev
);
9730 struct i40e_hw
*hw
= &pf
->hw
;
9732 set_bit(__I40E_SUSPENDED
, &pf
->state
);
9733 set_bit(__I40E_DOWN
, &pf
->state
);
9735 i40e_prep_for_reset(pf
);
9738 wr32(hw
, I40E_PFPM_APM
, (pf
->wol_en
? I40E_PFPM_APM_APME_MASK
: 0));
9739 wr32(hw
, I40E_PFPM_WUFC
, (pf
->wol_en
? I40E_PFPM_WUFC_MAG_MASK
: 0));
9741 i40e_clear_interrupt_scheme(pf
);
9743 if (system_state
== SYSTEM_POWER_OFF
) {
9744 pci_wake_from_d3(pdev
, pf
->wol_en
);
9745 pci_set_power_state(pdev
, PCI_D3hot
);
9751 * i40e_suspend - PCI callback for moving to D3
9752 * @pdev: PCI device information struct
9754 static int i40e_suspend(struct pci_dev
*pdev
, pm_message_t state
)
9756 struct i40e_pf
*pf
= pci_get_drvdata(pdev
);
9757 struct i40e_hw
*hw
= &pf
->hw
;
9759 set_bit(__I40E_SUSPENDED
, &pf
->state
);
9760 set_bit(__I40E_DOWN
, &pf
->state
);
9761 del_timer_sync(&pf
->service_timer
);
9762 cancel_work_sync(&pf
->service_task
);
9764 i40e_prep_for_reset(pf
);
9767 wr32(hw
, I40E_PFPM_APM
, (pf
->wol_en
? I40E_PFPM_APM_APME_MASK
: 0));
9768 wr32(hw
, I40E_PFPM_WUFC
, (pf
->wol_en
? I40E_PFPM_WUFC_MAG_MASK
: 0));
9770 pci_wake_from_d3(pdev
, pf
->wol_en
);
9771 pci_set_power_state(pdev
, PCI_D3hot
);
9777 * i40e_resume - PCI callback for waking up from D3
9778 * @pdev: PCI device information struct
9780 static int i40e_resume(struct pci_dev
*pdev
)
9782 struct i40e_pf
*pf
= pci_get_drvdata(pdev
);
9785 pci_set_power_state(pdev
, PCI_D0
);
9786 pci_restore_state(pdev
);
9787 /* pci_restore_state() clears dev->state_saves, so
9788 * call pci_save_state() again to restore it.
9790 pci_save_state(pdev
);
9792 err
= pci_enable_device_mem(pdev
);
9795 "%s: Cannot enable PCI device from suspend\n",
9799 pci_set_master(pdev
);
9801 /* no wakeup events while running */
9802 pci_wake_from_d3(pdev
, false);
9804 /* handling the reset will rebuild the device state */
9805 if (test_and_clear_bit(__I40E_SUSPENDED
, &pf
->state
)) {
9806 clear_bit(__I40E_DOWN
, &pf
->state
);
9808 i40e_reset_and_rebuild(pf
, false);
9816 static const struct pci_error_handlers i40e_err_handler
= {
9817 .error_detected
= i40e_pci_error_detected
,
9818 .slot_reset
= i40e_pci_error_slot_reset
,
9819 .resume
= i40e_pci_error_resume
,
9822 static struct pci_driver i40e_driver
= {
9823 .name
= i40e_driver_name
,
9824 .id_table
= i40e_pci_tbl
,
9825 .probe
= i40e_probe
,
9826 .remove
= i40e_remove
,
9828 .suspend
= i40e_suspend
,
9829 .resume
= i40e_resume
,
9831 .shutdown
= i40e_shutdown
,
9832 .err_handler
= &i40e_err_handler
,
9833 .sriov_configure
= i40e_pci_sriov_configure
,
9837 * i40e_init_module - Driver registration routine
9839 * i40e_init_module is the first routine called when the driver is
9840 * loaded. All it does is register with the PCI subsystem.
9842 static int __init
i40e_init_module(void)
9844 pr_info("%s: %s - version %s\n", i40e_driver_name
,
9845 i40e_driver_string
, i40e_driver_version_str
);
9846 pr_info("%s: %s\n", i40e_driver_name
, i40e_copyright
);
9848 return pci_register_driver(&i40e_driver
);
9850 module_init(i40e_init_module
);
9853 * i40e_exit_module - Driver exit cleanup routine
9855 * i40e_exit_module is called just before the driver is removed
9858 static void __exit
i40e_exit_module(void)
9860 pci_unregister_driver(&i40e_driver
);
9863 module_exit(i40e_exit_module
);