1 /*******************************************************************************
3 * Intel Ethernet Controller XL710 Family Linux Driver
4 * Copyright(c) 2013 - 2015 Intel Corporation.
6 * This program is free software; you can redistribute it and/or modify it
7 * under the terms and conditions of the GNU General Public License,
8 * version 2, as published by the Free Software Foundation.
10 * This program is distributed in the hope it will be useful, but WITHOUT
11 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
12 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
15 * You should have received a copy of the GNU General Public License along
16 * with this program. If not, see <http://www.gnu.org/licenses/>.
18 * The full GNU General Public License is included in this distribution in
19 * the file called "COPYING".
21 * Contact Information:
22 * e1000-devel Mailing List <e1000-devel@lists.sourceforge.net>
23 * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
25 ******************************************************************************/
29 #include "i40e_diag.h"
30 #ifdef CONFIG_I40E_VXLAN
31 #include <net/vxlan.h>
34 const char i40e_driver_name
[] = "i40e";
35 static const char i40e_driver_string
[] =
36 "Intel(R) Ethernet Connection XL710 Network Driver";
40 #define DRV_VERSION_MAJOR 1
41 #define DRV_VERSION_MINOR 2
42 #define DRV_VERSION_BUILD 12
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_update48(hw
, I40E_GLPRT_UPRCH(hw
->port
),
923 I40E_GLPRT_UPRCL(hw
->port
),
924 pf
->stat_offsets_loaded
,
925 &osd
->eth
.rx_unicast
,
926 &nsd
->eth
.rx_unicast
);
927 i40e_stat_update48(hw
, I40E_GLPRT_MPRCH(hw
->port
),
928 I40E_GLPRT_MPRCL(hw
->port
),
929 pf
->stat_offsets_loaded
,
930 &osd
->eth
.rx_multicast
,
931 &nsd
->eth
.rx_multicast
);
932 i40e_stat_update48(hw
, I40E_GLPRT_BPRCH(hw
->port
),
933 I40E_GLPRT_BPRCL(hw
->port
),
934 pf
->stat_offsets_loaded
,
935 &osd
->eth
.rx_broadcast
,
936 &nsd
->eth
.rx_broadcast
);
937 i40e_stat_update48(hw
, I40E_GLPRT_UPTCH(hw
->port
),
938 I40E_GLPRT_UPTCL(hw
->port
),
939 pf
->stat_offsets_loaded
,
940 &osd
->eth
.tx_unicast
,
941 &nsd
->eth
.tx_unicast
);
942 i40e_stat_update48(hw
, I40E_GLPRT_MPTCH(hw
->port
),
943 I40E_GLPRT_MPTCL(hw
->port
),
944 pf
->stat_offsets_loaded
,
945 &osd
->eth
.tx_multicast
,
946 &nsd
->eth
.tx_multicast
);
947 i40e_stat_update48(hw
, I40E_GLPRT_BPTCH(hw
->port
),
948 I40E_GLPRT_BPTCL(hw
->port
),
949 pf
->stat_offsets_loaded
,
950 &osd
->eth
.tx_broadcast
,
951 &nsd
->eth
.tx_broadcast
);
953 i40e_stat_update32(hw
, I40E_GLPRT_TDOLD(hw
->port
),
954 pf
->stat_offsets_loaded
,
955 &osd
->tx_dropped_link_down
,
956 &nsd
->tx_dropped_link_down
);
958 i40e_stat_update32(hw
, I40E_GLPRT_CRCERRS(hw
->port
),
959 pf
->stat_offsets_loaded
,
960 &osd
->crc_errors
, &nsd
->crc_errors
);
962 i40e_stat_update32(hw
, I40E_GLPRT_ILLERRC(hw
->port
),
963 pf
->stat_offsets_loaded
,
964 &osd
->illegal_bytes
, &nsd
->illegal_bytes
);
966 i40e_stat_update32(hw
, I40E_GLPRT_MLFC(hw
->port
),
967 pf
->stat_offsets_loaded
,
968 &osd
->mac_local_faults
,
969 &nsd
->mac_local_faults
);
970 i40e_stat_update32(hw
, I40E_GLPRT_MRFC(hw
->port
),
971 pf
->stat_offsets_loaded
,
972 &osd
->mac_remote_faults
,
973 &nsd
->mac_remote_faults
);
975 i40e_stat_update32(hw
, I40E_GLPRT_RLEC(hw
->port
),
976 pf
->stat_offsets_loaded
,
977 &osd
->rx_length_errors
,
978 &nsd
->rx_length_errors
);
980 i40e_stat_update32(hw
, I40E_GLPRT_LXONRXC(hw
->port
),
981 pf
->stat_offsets_loaded
,
982 &osd
->link_xon_rx
, &nsd
->link_xon_rx
);
983 i40e_stat_update32(hw
, I40E_GLPRT_LXONTXC(hw
->port
),
984 pf
->stat_offsets_loaded
,
985 &osd
->link_xon_tx
, &nsd
->link_xon_tx
);
986 i40e_update_prio_xoff_rx(pf
); /* handles I40E_GLPRT_LXOFFRXC */
987 i40e_stat_update32(hw
, I40E_GLPRT_LXOFFTXC(hw
->port
),
988 pf
->stat_offsets_loaded
,
989 &osd
->link_xoff_tx
, &nsd
->link_xoff_tx
);
991 for (i
= 0; i
< 8; i
++) {
992 i40e_stat_update32(hw
, I40E_GLPRT_PXONRXC(hw
->port
, i
),
993 pf
->stat_offsets_loaded
,
994 &osd
->priority_xon_rx
[i
],
995 &nsd
->priority_xon_rx
[i
]);
996 i40e_stat_update32(hw
, I40E_GLPRT_PXONTXC(hw
->port
, i
),
997 pf
->stat_offsets_loaded
,
998 &osd
->priority_xon_tx
[i
],
999 &nsd
->priority_xon_tx
[i
]);
1000 i40e_stat_update32(hw
, I40E_GLPRT_PXOFFTXC(hw
->port
, i
),
1001 pf
->stat_offsets_loaded
,
1002 &osd
->priority_xoff_tx
[i
],
1003 &nsd
->priority_xoff_tx
[i
]);
1004 i40e_stat_update32(hw
,
1005 I40E_GLPRT_RXON2OFFCNT(hw
->port
, i
),
1006 pf
->stat_offsets_loaded
,
1007 &osd
->priority_xon_2_xoff
[i
],
1008 &nsd
->priority_xon_2_xoff
[i
]);
1011 i40e_stat_update48(hw
, I40E_GLPRT_PRC64H(hw
->port
),
1012 I40E_GLPRT_PRC64L(hw
->port
),
1013 pf
->stat_offsets_loaded
,
1014 &osd
->rx_size_64
, &nsd
->rx_size_64
);
1015 i40e_stat_update48(hw
, I40E_GLPRT_PRC127H(hw
->port
),
1016 I40E_GLPRT_PRC127L(hw
->port
),
1017 pf
->stat_offsets_loaded
,
1018 &osd
->rx_size_127
, &nsd
->rx_size_127
);
1019 i40e_stat_update48(hw
, I40E_GLPRT_PRC255H(hw
->port
),
1020 I40E_GLPRT_PRC255L(hw
->port
),
1021 pf
->stat_offsets_loaded
,
1022 &osd
->rx_size_255
, &nsd
->rx_size_255
);
1023 i40e_stat_update48(hw
, I40E_GLPRT_PRC511H(hw
->port
),
1024 I40E_GLPRT_PRC511L(hw
->port
),
1025 pf
->stat_offsets_loaded
,
1026 &osd
->rx_size_511
, &nsd
->rx_size_511
);
1027 i40e_stat_update48(hw
, I40E_GLPRT_PRC1023H(hw
->port
),
1028 I40E_GLPRT_PRC1023L(hw
->port
),
1029 pf
->stat_offsets_loaded
,
1030 &osd
->rx_size_1023
, &nsd
->rx_size_1023
);
1031 i40e_stat_update48(hw
, I40E_GLPRT_PRC1522H(hw
->port
),
1032 I40E_GLPRT_PRC1522L(hw
->port
),
1033 pf
->stat_offsets_loaded
,
1034 &osd
->rx_size_1522
, &nsd
->rx_size_1522
);
1035 i40e_stat_update48(hw
, I40E_GLPRT_PRC9522H(hw
->port
),
1036 I40E_GLPRT_PRC9522L(hw
->port
),
1037 pf
->stat_offsets_loaded
,
1038 &osd
->rx_size_big
, &nsd
->rx_size_big
);
1040 i40e_stat_update48(hw
, I40E_GLPRT_PTC64H(hw
->port
),
1041 I40E_GLPRT_PTC64L(hw
->port
),
1042 pf
->stat_offsets_loaded
,
1043 &osd
->tx_size_64
, &nsd
->tx_size_64
);
1044 i40e_stat_update48(hw
, I40E_GLPRT_PTC127H(hw
->port
),
1045 I40E_GLPRT_PTC127L(hw
->port
),
1046 pf
->stat_offsets_loaded
,
1047 &osd
->tx_size_127
, &nsd
->tx_size_127
);
1048 i40e_stat_update48(hw
, I40E_GLPRT_PTC255H(hw
->port
),
1049 I40E_GLPRT_PTC255L(hw
->port
),
1050 pf
->stat_offsets_loaded
,
1051 &osd
->tx_size_255
, &nsd
->tx_size_255
);
1052 i40e_stat_update48(hw
, I40E_GLPRT_PTC511H(hw
->port
),
1053 I40E_GLPRT_PTC511L(hw
->port
),
1054 pf
->stat_offsets_loaded
,
1055 &osd
->tx_size_511
, &nsd
->tx_size_511
);
1056 i40e_stat_update48(hw
, I40E_GLPRT_PTC1023H(hw
->port
),
1057 I40E_GLPRT_PTC1023L(hw
->port
),
1058 pf
->stat_offsets_loaded
,
1059 &osd
->tx_size_1023
, &nsd
->tx_size_1023
);
1060 i40e_stat_update48(hw
, I40E_GLPRT_PTC1522H(hw
->port
),
1061 I40E_GLPRT_PTC1522L(hw
->port
),
1062 pf
->stat_offsets_loaded
,
1063 &osd
->tx_size_1522
, &nsd
->tx_size_1522
);
1064 i40e_stat_update48(hw
, I40E_GLPRT_PTC9522H(hw
->port
),
1065 I40E_GLPRT_PTC9522L(hw
->port
),
1066 pf
->stat_offsets_loaded
,
1067 &osd
->tx_size_big
, &nsd
->tx_size_big
);
1069 i40e_stat_update32(hw
, I40E_GLPRT_RUC(hw
->port
),
1070 pf
->stat_offsets_loaded
,
1071 &osd
->rx_undersize
, &nsd
->rx_undersize
);
1072 i40e_stat_update32(hw
, I40E_GLPRT_RFC(hw
->port
),
1073 pf
->stat_offsets_loaded
,
1074 &osd
->rx_fragments
, &nsd
->rx_fragments
);
1075 i40e_stat_update32(hw
, I40E_GLPRT_ROC(hw
->port
),
1076 pf
->stat_offsets_loaded
,
1077 &osd
->rx_oversize
, &nsd
->rx_oversize
);
1078 i40e_stat_update32(hw
, I40E_GLPRT_RJC(hw
->port
),
1079 pf
->stat_offsets_loaded
,
1080 &osd
->rx_jabber
, &nsd
->rx_jabber
);
1083 i40e_stat_update32(hw
, I40E_GLQF_PCNT(pf
->fd_atr_cnt_idx
),
1084 pf
->stat_offsets_loaded
,
1085 &osd
->fd_atr_match
, &nsd
->fd_atr_match
);
1086 i40e_stat_update32(hw
, I40E_GLQF_PCNT(pf
->fd_sb_cnt_idx
),
1087 pf
->stat_offsets_loaded
,
1088 &osd
->fd_sb_match
, &nsd
->fd_sb_match
);
1090 val
= rd32(hw
, I40E_PRTPM_EEE_STAT
);
1091 nsd
->tx_lpi_status
=
1092 (val
& I40E_PRTPM_EEE_STAT_TX_LPI_STATUS_MASK
) >>
1093 I40E_PRTPM_EEE_STAT_TX_LPI_STATUS_SHIFT
;
1094 nsd
->rx_lpi_status
=
1095 (val
& I40E_PRTPM_EEE_STAT_RX_LPI_STATUS_MASK
) >>
1096 I40E_PRTPM_EEE_STAT_RX_LPI_STATUS_SHIFT
;
1097 i40e_stat_update32(hw
, I40E_PRTPM_TLPIC
,
1098 pf
->stat_offsets_loaded
,
1099 &osd
->tx_lpi_count
, &nsd
->tx_lpi_count
);
1100 i40e_stat_update32(hw
, I40E_PRTPM_RLPIC
,
1101 pf
->stat_offsets_loaded
,
1102 &osd
->rx_lpi_count
, &nsd
->rx_lpi_count
);
1104 pf
->stat_offsets_loaded
= true;
1108 * i40e_update_stats - Update the various statistics counters.
1109 * @vsi: the VSI to be updated
1111 * Update the various stats for this VSI and its related entities.
1113 void i40e_update_stats(struct i40e_vsi
*vsi
)
1115 struct i40e_pf
*pf
= vsi
->back
;
1117 if (vsi
== pf
->vsi
[pf
->lan_vsi
])
1118 i40e_update_pf_stats(pf
);
1120 i40e_update_vsi_stats(vsi
);
1122 i40e_update_fcoe_stats(vsi
);
1127 * i40e_find_filter - Search VSI filter list for specific mac/vlan filter
1128 * @vsi: the VSI to be searched
1129 * @macaddr: the MAC address
1131 * @is_vf: make sure its a VF filter, else doesn't matter
1132 * @is_netdev: make sure its a netdev filter, else doesn't matter
1134 * Returns ptr to the filter object or NULL
1136 static struct i40e_mac_filter
*i40e_find_filter(struct i40e_vsi
*vsi
,
1137 u8
*macaddr
, s16 vlan
,
1138 bool is_vf
, bool is_netdev
)
1140 struct i40e_mac_filter
*f
;
1142 if (!vsi
|| !macaddr
)
1145 list_for_each_entry(f
, &vsi
->mac_filter_list
, list
) {
1146 if ((ether_addr_equal(macaddr
, f
->macaddr
)) &&
1147 (vlan
== f
->vlan
) &&
1148 (!is_vf
|| f
->is_vf
) &&
1149 (!is_netdev
|| f
->is_netdev
))
1156 * i40e_find_mac - Find a mac addr in the macvlan filters list
1157 * @vsi: the VSI to be searched
1158 * @macaddr: the MAC address we are searching for
1159 * @is_vf: make sure its a VF filter, else doesn't matter
1160 * @is_netdev: make sure its a netdev filter, else doesn't matter
1162 * Returns the first filter with the provided MAC address or NULL if
1163 * MAC address was not found
1165 struct i40e_mac_filter
*i40e_find_mac(struct i40e_vsi
*vsi
, u8
*macaddr
,
1166 bool is_vf
, bool is_netdev
)
1168 struct i40e_mac_filter
*f
;
1170 if (!vsi
|| !macaddr
)
1173 list_for_each_entry(f
, &vsi
->mac_filter_list
, list
) {
1174 if ((ether_addr_equal(macaddr
, f
->macaddr
)) &&
1175 (!is_vf
|| f
->is_vf
) &&
1176 (!is_netdev
|| f
->is_netdev
))
1183 * i40e_is_vsi_in_vlan - Check if VSI is in vlan mode
1184 * @vsi: the VSI to be searched
1186 * Returns true if VSI is in vlan mode or false otherwise
1188 bool i40e_is_vsi_in_vlan(struct i40e_vsi
*vsi
)
1190 struct i40e_mac_filter
*f
;
1192 /* Only -1 for all the filters denotes not in vlan mode
1193 * so we have to go through all the list in order to make sure
1195 list_for_each_entry(f
, &vsi
->mac_filter_list
, list
) {
1204 * i40e_put_mac_in_vlan - Make macvlan filters from macaddrs and vlans
1205 * @vsi: the VSI to be searched
1206 * @macaddr: the mac address to be filtered
1207 * @is_vf: true if it is a VF
1208 * @is_netdev: true if it is a netdev
1210 * Goes through all the macvlan filters and adds a
1211 * macvlan filter for each unique vlan that already exists
1213 * Returns first filter found on success, else NULL
1215 struct i40e_mac_filter
*i40e_put_mac_in_vlan(struct i40e_vsi
*vsi
, u8
*macaddr
,
1216 bool is_vf
, bool is_netdev
)
1218 struct i40e_mac_filter
*f
;
1220 list_for_each_entry(f
, &vsi
->mac_filter_list
, list
) {
1221 if (!i40e_find_filter(vsi
, macaddr
, f
->vlan
,
1222 is_vf
, is_netdev
)) {
1223 if (!i40e_add_filter(vsi
, macaddr
, f
->vlan
,
1229 return list_first_entry_or_null(&vsi
->mac_filter_list
,
1230 struct i40e_mac_filter
, list
);
1234 * i40e_rm_default_mac_filter - Remove the default MAC filter set by NVM
1235 * @vsi: the PF Main VSI - inappropriate for any other VSI
1236 * @macaddr: the MAC address
1238 * Some older firmware configurations set up a default promiscuous VLAN
1239 * filter that needs to be removed.
1241 static int i40e_rm_default_mac_filter(struct i40e_vsi
*vsi
, u8
*macaddr
)
1243 struct i40e_aqc_remove_macvlan_element_data element
;
1244 struct i40e_pf
*pf
= vsi
->back
;
1247 /* Only appropriate for the PF main VSI */
1248 if (vsi
->type
!= I40E_VSI_MAIN
)
1251 memset(&element
, 0, sizeof(element
));
1252 ether_addr_copy(element
.mac_addr
, macaddr
);
1253 element
.vlan_tag
= 0;
1254 element
.flags
= I40E_AQC_MACVLAN_DEL_PERFECT_MATCH
|
1255 I40E_AQC_MACVLAN_DEL_IGNORE_VLAN
;
1256 aq_ret
= i40e_aq_remove_macvlan(&pf
->hw
, vsi
->seid
, &element
, 1, NULL
);
1264 * i40e_add_filter - Add a mac/vlan filter to the VSI
1265 * @vsi: the VSI to be searched
1266 * @macaddr: the MAC address
1268 * @is_vf: make sure its a VF filter, else doesn't matter
1269 * @is_netdev: make sure its a netdev filter, else doesn't matter
1271 * Returns ptr to the filter object or NULL when no memory available.
1273 struct i40e_mac_filter
*i40e_add_filter(struct i40e_vsi
*vsi
,
1274 u8
*macaddr
, s16 vlan
,
1275 bool is_vf
, bool is_netdev
)
1277 struct i40e_mac_filter
*f
;
1279 if (!vsi
|| !macaddr
)
1282 f
= i40e_find_filter(vsi
, macaddr
, vlan
, is_vf
, is_netdev
);
1284 f
= kzalloc(sizeof(*f
), GFP_ATOMIC
);
1286 goto add_filter_out
;
1288 ether_addr_copy(f
->macaddr
, macaddr
);
1292 INIT_LIST_HEAD(&f
->list
);
1293 list_add(&f
->list
, &vsi
->mac_filter_list
);
1296 /* increment counter and add a new flag if needed */
1302 } else if (is_netdev
) {
1303 if (!f
->is_netdev
) {
1304 f
->is_netdev
= true;
1311 /* changed tells sync_filters_subtask to
1312 * push the filter down to the firmware
1315 vsi
->flags
|= I40E_VSI_FLAG_FILTER_CHANGED
;
1316 vsi
->back
->flags
|= I40E_FLAG_FILTER_SYNC
;
1324 * i40e_del_filter - Remove a mac/vlan filter from the VSI
1325 * @vsi: the VSI to be searched
1326 * @macaddr: the MAC address
1328 * @is_vf: make sure it's a VF filter, else doesn't matter
1329 * @is_netdev: make sure it's a netdev filter, else doesn't matter
1331 void i40e_del_filter(struct i40e_vsi
*vsi
,
1332 u8
*macaddr
, s16 vlan
,
1333 bool is_vf
, bool is_netdev
)
1335 struct i40e_mac_filter
*f
;
1337 if (!vsi
|| !macaddr
)
1340 f
= i40e_find_filter(vsi
, macaddr
, vlan
, is_vf
, is_netdev
);
1341 if (!f
|| f
->counter
== 0)
1349 } else if (is_netdev
) {
1351 f
->is_netdev
= false;
1355 /* make sure we don't remove a filter in use by VF or netdev */
1357 min_f
+= (f
->is_vf
? 1 : 0);
1358 min_f
+= (f
->is_netdev
? 1 : 0);
1360 if (f
->counter
> min_f
)
1364 /* counter == 0 tells sync_filters_subtask to
1365 * remove the filter from the firmware's list
1367 if (f
->counter
== 0) {
1369 vsi
->flags
|= I40E_VSI_FLAG_FILTER_CHANGED
;
1370 vsi
->back
->flags
|= I40E_FLAG_FILTER_SYNC
;
1375 * i40e_set_mac - NDO callback to set mac address
1376 * @netdev: network interface device structure
1377 * @p: pointer to an address structure
1379 * Returns 0 on success, negative on failure
1382 int i40e_set_mac(struct net_device
*netdev
, void *p
)
1384 static int i40e_set_mac(struct net_device
*netdev
, void *p
)
1387 struct i40e_netdev_priv
*np
= netdev_priv(netdev
);
1388 struct i40e_vsi
*vsi
= np
->vsi
;
1389 struct i40e_pf
*pf
= vsi
->back
;
1390 struct i40e_hw
*hw
= &pf
->hw
;
1391 struct sockaddr
*addr
= p
;
1392 struct i40e_mac_filter
*f
;
1394 if (!is_valid_ether_addr(addr
->sa_data
))
1395 return -EADDRNOTAVAIL
;
1397 if (ether_addr_equal(netdev
->dev_addr
, addr
->sa_data
)) {
1398 netdev_info(netdev
, "already using mac address %pM\n",
1403 if (test_bit(__I40E_DOWN
, &vsi
->back
->state
) ||
1404 test_bit(__I40E_RESET_RECOVERY_PENDING
, &vsi
->back
->state
))
1405 return -EADDRNOTAVAIL
;
1407 if (ether_addr_equal(hw
->mac
.addr
, addr
->sa_data
))
1408 netdev_info(netdev
, "returning to hw mac address %pM\n",
1411 netdev_info(netdev
, "set new mac address %pM\n", addr
->sa_data
);
1413 if (vsi
->type
== I40E_VSI_MAIN
) {
1415 ret
= i40e_aq_mac_address_write(&vsi
->back
->hw
,
1416 I40E_AQC_WRITE_TYPE_LAA_WOL
,
1417 addr
->sa_data
, NULL
);
1420 "Addr change for Main VSI failed: %d\n",
1422 return -EADDRNOTAVAIL
;
1426 if (ether_addr_equal(netdev
->dev_addr
, hw
->mac
.addr
)) {
1427 struct i40e_aqc_remove_macvlan_element_data element
;
1429 memset(&element
, 0, sizeof(element
));
1430 ether_addr_copy(element
.mac_addr
, netdev
->dev_addr
);
1431 element
.flags
= I40E_AQC_MACVLAN_DEL_PERFECT_MATCH
;
1432 i40e_aq_remove_macvlan(&pf
->hw
, vsi
->seid
, &element
, 1, NULL
);
1434 i40e_del_filter(vsi
, netdev
->dev_addr
, I40E_VLAN_ANY
,
1438 if (ether_addr_equal(addr
->sa_data
, hw
->mac
.addr
)) {
1439 struct i40e_aqc_add_macvlan_element_data element
;
1441 memset(&element
, 0, sizeof(element
));
1442 ether_addr_copy(element
.mac_addr
, hw
->mac
.addr
);
1443 element
.flags
= cpu_to_le16(I40E_AQC_MACVLAN_ADD_PERFECT_MATCH
);
1444 i40e_aq_add_macvlan(&pf
->hw
, vsi
->seid
, &element
, 1, NULL
);
1446 f
= i40e_add_filter(vsi
, addr
->sa_data
, I40E_VLAN_ANY
,
1452 i40e_sync_vsi_filters(vsi
);
1453 ether_addr_copy(netdev
->dev_addr
, addr
->sa_data
);
1459 * i40e_vsi_setup_queue_map - Setup a VSI queue map based on enabled_tc
1460 * @vsi: the VSI being setup
1461 * @ctxt: VSI context structure
1462 * @enabled_tc: Enabled TCs bitmap
1463 * @is_add: True if called before Add VSI
1465 * Setup VSI queue mapping for enabled traffic classes.
1468 void i40e_vsi_setup_queue_map(struct i40e_vsi
*vsi
,
1469 struct i40e_vsi_context
*ctxt
,
1473 static void i40e_vsi_setup_queue_map(struct i40e_vsi
*vsi
,
1474 struct i40e_vsi_context
*ctxt
,
1479 struct i40e_pf
*pf
= vsi
->back
;
1489 sections
= I40E_AQ_VSI_PROP_QUEUE_MAP_VALID
;
1492 if (enabled_tc
&& (vsi
->back
->flags
& I40E_FLAG_DCB_ENABLED
)) {
1493 /* Find numtc from enabled TC bitmap */
1494 for (i
= 0; i
< I40E_MAX_TRAFFIC_CLASS
; i
++) {
1495 if (enabled_tc
& (1 << i
)) /* TC is enabled */
1499 dev_warn(&pf
->pdev
->dev
, "DCB is enabled but no TC enabled, forcing TC0\n");
1503 /* At least TC0 is enabled in case of non-DCB case */
1507 vsi
->tc_config
.numtc
= numtc
;
1508 vsi
->tc_config
.enabled_tc
= enabled_tc
? enabled_tc
: 1;
1509 /* Number of queues per enabled TC */
1510 /* In MFP case we can have a much lower count of MSIx
1511 * vectors available and so we need to lower the used
1514 qcount
= min_t(int, vsi
->alloc_queue_pairs
, pf
->num_lan_msix
);
1515 num_tc_qps
= qcount
/ numtc
;
1516 num_tc_qps
= min_t(int, num_tc_qps
, I40E_MAX_QUEUES_PER_TC
);
1518 /* Setup queue offset/count for all TCs for given VSI */
1519 for (i
= 0; i
< I40E_MAX_TRAFFIC_CLASS
; i
++) {
1520 /* See if the given TC is enabled for the given VSI */
1521 if (vsi
->tc_config
.enabled_tc
& (1 << i
)) { /* TC is enabled */
1524 switch (vsi
->type
) {
1526 qcount
= min_t(int, pf
->rss_size
, num_tc_qps
);
1530 qcount
= num_tc_qps
;
1534 case I40E_VSI_SRIOV
:
1535 case I40E_VSI_VMDQ2
:
1537 qcount
= num_tc_qps
;
1541 vsi
->tc_config
.tc_info
[i
].qoffset
= offset
;
1542 vsi
->tc_config
.tc_info
[i
].qcount
= qcount
;
1544 /* find the next higher power-of-2 of num queue pairs */
1547 while (num_qps
&& ((1 << pow
) < qcount
)) {
1552 vsi
->tc_config
.tc_info
[i
].netdev_tc
= netdev_tc
++;
1554 (offset
<< I40E_AQ_VSI_TC_QUE_OFFSET_SHIFT
) |
1555 (pow
<< I40E_AQ_VSI_TC_QUE_NUMBER_SHIFT
);
1559 /* TC is not enabled so set the offset to
1560 * default queue and allocate one queue
1563 vsi
->tc_config
.tc_info
[i
].qoffset
= 0;
1564 vsi
->tc_config
.tc_info
[i
].qcount
= 1;
1565 vsi
->tc_config
.tc_info
[i
].netdev_tc
= 0;
1569 ctxt
->info
.tc_mapping
[i
] = cpu_to_le16(qmap
);
1572 /* Set actual Tx/Rx queue pairs */
1573 vsi
->num_queue_pairs
= offset
;
1574 if ((vsi
->type
== I40E_VSI_MAIN
) && (numtc
== 1)) {
1575 if (vsi
->req_queue_pairs
> 0)
1576 vsi
->num_queue_pairs
= vsi
->req_queue_pairs
;
1578 vsi
->num_queue_pairs
= pf
->num_lan_msix
;
1581 /* Scheduler section valid can only be set for ADD VSI */
1583 sections
|= I40E_AQ_VSI_PROP_SCHED_VALID
;
1585 ctxt
->info
.up_enable_bits
= enabled_tc
;
1587 if (vsi
->type
== I40E_VSI_SRIOV
) {
1588 ctxt
->info
.mapping_flags
|=
1589 cpu_to_le16(I40E_AQ_VSI_QUE_MAP_NONCONTIG
);
1590 for (i
= 0; i
< vsi
->num_queue_pairs
; i
++)
1591 ctxt
->info
.queue_mapping
[i
] =
1592 cpu_to_le16(vsi
->base_queue
+ i
);
1594 ctxt
->info
.mapping_flags
|=
1595 cpu_to_le16(I40E_AQ_VSI_QUE_MAP_CONTIG
);
1596 ctxt
->info
.queue_mapping
[0] = cpu_to_le16(vsi
->base_queue
);
1598 ctxt
->info
.valid_sections
|= cpu_to_le16(sections
);
1602 * i40e_set_rx_mode - NDO callback to set the netdev filters
1603 * @netdev: network interface device structure
1606 void i40e_set_rx_mode(struct net_device
*netdev
)
1608 static void i40e_set_rx_mode(struct net_device
*netdev
)
1611 struct i40e_netdev_priv
*np
= netdev_priv(netdev
);
1612 struct i40e_mac_filter
*f
, *ftmp
;
1613 struct i40e_vsi
*vsi
= np
->vsi
;
1614 struct netdev_hw_addr
*uca
;
1615 struct netdev_hw_addr
*mca
;
1616 struct netdev_hw_addr
*ha
;
1618 /* add addr if not already in the filter list */
1619 netdev_for_each_uc_addr(uca
, netdev
) {
1620 if (!i40e_find_mac(vsi
, uca
->addr
, false, true)) {
1621 if (i40e_is_vsi_in_vlan(vsi
))
1622 i40e_put_mac_in_vlan(vsi
, uca
->addr
,
1625 i40e_add_filter(vsi
, uca
->addr
, I40E_VLAN_ANY
,
1630 netdev_for_each_mc_addr(mca
, netdev
) {
1631 if (!i40e_find_mac(vsi
, mca
->addr
, false, true)) {
1632 if (i40e_is_vsi_in_vlan(vsi
))
1633 i40e_put_mac_in_vlan(vsi
, mca
->addr
,
1636 i40e_add_filter(vsi
, mca
->addr
, I40E_VLAN_ANY
,
1641 /* remove filter if not in netdev list */
1642 list_for_each_entry_safe(f
, ftmp
, &vsi
->mac_filter_list
, list
) {
1648 if (is_multicast_ether_addr(f
->macaddr
)) {
1649 netdev_for_each_mc_addr(mca
, netdev
) {
1650 if (ether_addr_equal(mca
->addr
, f
->macaddr
)) {
1656 netdev_for_each_uc_addr(uca
, netdev
) {
1657 if (ether_addr_equal(uca
->addr
, f
->macaddr
)) {
1663 for_each_dev_addr(netdev
, ha
) {
1664 if (ether_addr_equal(ha
->addr
, f
->macaddr
)) {
1672 vsi
, f
->macaddr
, I40E_VLAN_ANY
, false, true);
1675 /* check for other flag changes */
1676 if (vsi
->current_netdev_flags
!= vsi
->netdev
->flags
) {
1677 vsi
->flags
|= I40E_VSI_FLAG_FILTER_CHANGED
;
1678 vsi
->back
->flags
|= I40E_FLAG_FILTER_SYNC
;
1683 * i40e_sync_vsi_filters - Update the VSI filter list to the HW
1684 * @vsi: ptr to the VSI
1686 * Push any outstanding VSI filter changes through the AdminQ.
1688 * Returns 0 or error value
1690 int i40e_sync_vsi_filters(struct i40e_vsi
*vsi
)
1692 struct i40e_mac_filter
*f
, *ftmp
;
1693 bool promisc_forced_on
= false;
1694 bool add_happened
= false;
1695 int filter_list_len
= 0;
1696 u32 changed_flags
= 0;
1697 i40e_status aq_ret
= 0;
1703 /* empty array typed pointers, kcalloc later */
1704 struct i40e_aqc_add_macvlan_element_data
*add_list
;
1705 struct i40e_aqc_remove_macvlan_element_data
*del_list
;
1707 while (test_and_set_bit(__I40E_CONFIG_BUSY
, &vsi
->state
))
1708 usleep_range(1000, 2000);
1712 changed_flags
= vsi
->current_netdev_flags
^ vsi
->netdev
->flags
;
1713 vsi
->current_netdev_flags
= vsi
->netdev
->flags
;
1716 if (vsi
->flags
& I40E_VSI_FLAG_FILTER_CHANGED
) {
1717 vsi
->flags
&= ~I40E_VSI_FLAG_FILTER_CHANGED
;
1719 filter_list_len
= pf
->hw
.aq
.asq_buf_size
/
1720 sizeof(struct i40e_aqc_remove_macvlan_element_data
);
1721 del_list
= kcalloc(filter_list_len
,
1722 sizeof(struct i40e_aqc_remove_macvlan_element_data
),
1727 list_for_each_entry_safe(f
, ftmp
, &vsi
->mac_filter_list
, list
) {
1731 if (f
->counter
!= 0)
1736 /* add to delete list */
1737 ether_addr_copy(del_list
[num_del
].mac_addr
, f
->macaddr
);
1738 del_list
[num_del
].vlan_tag
=
1739 cpu_to_le16((u16
)(f
->vlan
==
1740 I40E_VLAN_ANY
? 0 : f
->vlan
));
1742 cmd_flags
|= I40E_AQC_MACVLAN_DEL_PERFECT_MATCH
;
1743 del_list
[num_del
].flags
= cmd_flags
;
1746 /* unlink from filter list */
1750 /* flush a full buffer */
1751 if (num_del
== filter_list_len
) {
1752 aq_ret
= i40e_aq_remove_macvlan(&pf
->hw
,
1753 vsi
->seid
, del_list
, num_del
,
1756 memset(del_list
, 0, sizeof(*del_list
));
1759 pf
->hw
.aq
.asq_last_status
!=
1761 dev_info(&pf
->pdev
->dev
,
1762 "ignoring delete macvlan error, err %d, aq_err %d while flushing a full buffer\n",
1764 pf
->hw
.aq
.asq_last_status
);
1768 aq_ret
= i40e_aq_remove_macvlan(&pf
->hw
, vsi
->seid
,
1769 del_list
, num_del
, NULL
);
1773 pf
->hw
.aq
.asq_last_status
!= I40E_AQ_RC_ENOENT
)
1774 dev_info(&pf
->pdev
->dev
,
1775 "ignoring delete macvlan error, err %d, aq_err %d\n",
1776 aq_ret
, pf
->hw
.aq
.asq_last_status
);
1782 /* do all the adds now */
1783 filter_list_len
= pf
->hw
.aq
.asq_buf_size
/
1784 sizeof(struct i40e_aqc_add_macvlan_element_data
),
1785 add_list
= kcalloc(filter_list_len
,
1786 sizeof(struct i40e_aqc_add_macvlan_element_data
),
1791 list_for_each_entry_safe(f
, ftmp
, &vsi
->mac_filter_list
, list
) {
1795 if (f
->counter
== 0)
1798 add_happened
= true;
1801 /* add to add array */
1802 ether_addr_copy(add_list
[num_add
].mac_addr
, f
->macaddr
);
1803 add_list
[num_add
].vlan_tag
=
1805 (u16
)(f
->vlan
== I40E_VLAN_ANY
? 0 : f
->vlan
));
1806 add_list
[num_add
].queue_number
= 0;
1808 cmd_flags
|= I40E_AQC_MACVLAN_ADD_PERFECT_MATCH
;
1809 add_list
[num_add
].flags
= cpu_to_le16(cmd_flags
);
1812 /* flush a full buffer */
1813 if (num_add
== filter_list_len
) {
1814 aq_ret
= i40e_aq_add_macvlan(&pf
->hw
, vsi
->seid
,
1821 memset(add_list
, 0, sizeof(*add_list
));
1825 aq_ret
= i40e_aq_add_macvlan(&pf
->hw
, vsi
->seid
,
1826 add_list
, num_add
, NULL
);
1832 if (add_happened
&& aq_ret
&&
1833 pf
->hw
.aq
.asq_last_status
!= I40E_AQ_RC_EINVAL
) {
1834 dev_info(&pf
->pdev
->dev
,
1835 "add filter failed, err %d, aq_err %d\n",
1836 aq_ret
, pf
->hw
.aq
.asq_last_status
);
1837 if ((pf
->hw
.aq
.asq_last_status
== I40E_AQ_RC_ENOSPC
) &&
1838 !test_bit(__I40E_FILTER_OVERFLOW_PROMISC
,
1840 promisc_forced_on
= true;
1841 set_bit(__I40E_FILTER_OVERFLOW_PROMISC
,
1843 dev_info(&pf
->pdev
->dev
, "promiscuous mode forced on\n");
1848 /* check for changes in promiscuous modes */
1849 if (changed_flags
& IFF_ALLMULTI
) {
1850 bool cur_multipromisc
;
1851 cur_multipromisc
= !!(vsi
->current_netdev_flags
& IFF_ALLMULTI
);
1852 aq_ret
= i40e_aq_set_vsi_multicast_promiscuous(&vsi
->back
->hw
,
1857 dev_info(&pf
->pdev
->dev
,
1858 "set multi promisc failed, err %d, aq_err %d\n",
1859 aq_ret
, pf
->hw
.aq
.asq_last_status
);
1861 if ((changed_flags
& IFF_PROMISC
) || promisc_forced_on
) {
1863 cur_promisc
= (!!(vsi
->current_netdev_flags
& IFF_PROMISC
) ||
1864 test_bit(__I40E_FILTER_OVERFLOW_PROMISC
,
1866 aq_ret
= i40e_aq_set_vsi_unicast_promiscuous(&vsi
->back
->hw
,
1870 dev_info(&pf
->pdev
->dev
,
1871 "set uni promisc failed, err %d, aq_err %d\n",
1872 aq_ret
, pf
->hw
.aq
.asq_last_status
);
1873 aq_ret
= i40e_aq_set_vsi_broadcast(&vsi
->back
->hw
,
1877 dev_info(&pf
->pdev
->dev
,
1878 "set brdcast promisc failed, err %d, aq_err %d\n",
1879 aq_ret
, pf
->hw
.aq
.asq_last_status
);
1882 clear_bit(__I40E_CONFIG_BUSY
, &vsi
->state
);
1887 * i40e_sync_filters_subtask - Sync the VSI filter list with HW
1888 * @pf: board private structure
1890 static void i40e_sync_filters_subtask(struct i40e_pf
*pf
)
1894 if (!pf
|| !(pf
->flags
& I40E_FLAG_FILTER_SYNC
))
1896 pf
->flags
&= ~I40E_FLAG_FILTER_SYNC
;
1898 for (v
= 0; v
< pf
->num_alloc_vsi
; v
++) {
1900 (pf
->vsi
[v
]->flags
& I40E_VSI_FLAG_FILTER_CHANGED
))
1901 i40e_sync_vsi_filters(pf
->vsi
[v
]);
1906 * i40e_change_mtu - NDO callback to change the Maximum Transfer Unit
1907 * @netdev: network interface device structure
1908 * @new_mtu: new value for maximum frame size
1910 * Returns 0 on success, negative on failure
1912 static int i40e_change_mtu(struct net_device
*netdev
, int new_mtu
)
1914 struct i40e_netdev_priv
*np
= netdev_priv(netdev
);
1915 int max_frame
= new_mtu
+ ETH_HLEN
+ ETH_FCS_LEN
+ VLAN_HLEN
;
1916 struct i40e_vsi
*vsi
= np
->vsi
;
1918 /* MTU < 68 is an error and causes problems on some kernels */
1919 if ((new_mtu
< 68) || (max_frame
> I40E_MAX_RXBUFFER
))
1922 netdev_info(netdev
, "changing MTU from %d to %d\n",
1923 netdev
->mtu
, new_mtu
);
1924 netdev
->mtu
= new_mtu
;
1925 if (netif_running(netdev
))
1926 i40e_vsi_reinit_locked(vsi
);
1932 * i40e_ioctl - Access the hwtstamp interface
1933 * @netdev: network interface device structure
1934 * @ifr: interface request data
1935 * @cmd: ioctl command
1937 int i40e_ioctl(struct net_device
*netdev
, struct ifreq
*ifr
, int cmd
)
1939 struct i40e_netdev_priv
*np
= netdev_priv(netdev
);
1940 struct i40e_pf
*pf
= np
->vsi
->back
;
1944 return i40e_ptp_get_ts_config(pf
, ifr
);
1946 return i40e_ptp_set_ts_config(pf
, ifr
);
1953 * i40e_vlan_stripping_enable - Turn on vlan stripping for the VSI
1954 * @vsi: the vsi being adjusted
1956 void i40e_vlan_stripping_enable(struct i40e_vsi
*vsi
)
1958 struct i40e_vsi_context ctxt
;
1961 if ((vsi
->info
.valid_sections
&
1962 cpu_to_le16(I40E_AQ_VSI_PROP_VLAN_VALID
)) &&
1963 ((vsi
->info
.port_vlan_flags
& I40E_AQ_VSI_PVLAN_MODE_MASK
) == 0))
1964 return; /* already enabled */
1966 vsi
->info
.valid_sections
= cpu_to_le16(I40E_AQ_VSI_PROP_VLAN_VALID
);
1967 vsi
->info
.port_vlan_flags
= I40E_AQ_VSI_PVLAN_MODE_ALL
|
1968 I40E_AQ_VSI_PVLAN_EMOD_STR_BOTH
;
1970 ctxt
.seid
= vsi
->seid
;
1971 memcpy(&ctxt
.info
, &vsi
->info
, sizeof(vsi
->info
));
1972 ret
= i40e_aq_update_vsi_params(&vsi
->back
->hw
, &ctxt
, NULL
);
1974 dev_info(&vsi
->back
->pdev
->dev
,
1975 "%s: update vsi failed, aq_err=%d\n",
1976 __func__
, vsi
->back
->hw
.aq
.asq_last_status
);
1981 * i40e_vlan_stripping_disable - Turn off vlan stripping for the VSI
1982 * @vsi: the vsi being adjusted
1984 void i40e_vlan_stripping_disable(struct i40e_vsi
*vsi
)
1986 struct i40e_vsi_context ctxt
;
1989 if ((vsi
->info
.valid_sections
&
1990 cpu_to_le16(I40E_AQ_VSI_PROP_VLAN_VALID
)) &&
1991 ((vsi
->info
.port_vlan_flags
& I40E_AQ_VSI_PVLAN_EMOD_MASK
) ==
1992 I40E_AQ_VSI_PVLAN_EMOD_MASK
))
1993 return; /* already disabled */
1995 vsi
->info
.valid_sections
= cpu_to_le16(I40E_AQ_VSI_PROP_VLAN_VALID
);
1996 vsi
->info
.port_vlan_flags
= I40E_AQ_VSI_PVLAN_MODE_ALL
|
1997 I40E_AQ_VSI_PVLAN_EMOD_NOTHING
;
1999 ctxt
.seid
= vsi
->seid
;
2000 memcpy(&ctxt
.info
, &vsi
->info
, sizeof(vsi
->info
));
2001 ret
= i40e_aq_update_vsi_params(&vsi
->back
->hw
, &ctxt
, NULL
);
2003 dev_info(&vsi
->back
->pdev
->dev
,
2004 "%s: update vsi failed, aq_err=%d\n",
2005 __func__
, vsi
->back
->hw
.aq
.asq_last_status
);
2010 * i40e_vlan_rx_register - Setup or shutdown vlan offload
2011 * @netdev: network interface to be adjusted
2012 * @features: netdev features to test if VLAN offload is enabled or not
2014 static void i40e_vlan_rx_register(struct net_device
*netdev
, u32 features
)
2016 struct i40e_netdev_priv
*np
= netdev_priv(netdev
);
2017 struct i40e_vsi
*vsi
= np
->vsi
;
2019 if (features
& NETIF_F_HW_VLAN_CTAG_RX
)
2020 i40e_vlan_stripping_enable(vsi
);
2022 i40e_vlan_stripping_disable(vsi
);
2026 * i40e_vsi_add_vlan - Add vsi membership for given vlan
2027 * @vsi: the vsi being configured
2028 * @vid: vlan id to be added (0 = untagged only , -1 = any)
2030 int i40e_vsi_add_vlan(struct i40e_vsi
*vsi
, s16 vid
)
2032 struct i40e_mac_filter
*f
, *add_f
;
2033 bool is_netdev
, is_vf
;
2035 is_vf
= (vsi
->type
== I40E_VSI_SRIOV
);
2036 is_netdev
= !!(vsi
->netdev
);
2039 add_f
= i40e_add_filter(vsi
, vsi
->netdev
->dev_addr
, vid
,
2042 dev_info(&vsi
->back
->pdev
->dev
,
2043 "Could not add vlan filter %d for %pM\n",
2044 vid
, vsi
->netdev
->dev_addr
);
2049 list_for_each_entry(f
, &vsi
->mac_filter_list
, list
) {
2050 add_f
= i40e_add_filter(vsi
, f
->macaddr
, vid
, is_vf
, is_netdev
);
2052 dev_info(&vsi
->back
->pdev
->dev
,
2053 "Could not add vlan filter %d for %pM\n",
2059 /* Now if we add a vlan tag, make sure to check if it is the first
2060 * tag (i.e. a "tag" -1 does exist) and if so replace the -1 "tag"
2061 * with 0, so we now accept untagged and specified tagged traffic
2062 * (and not any taged and untagged)
2065 if (is_netdev
&& i40e_find_filter(vsi
, vsi
->netdev
->dev_addr
,
2067 is_vf
, is_netdev
)) {
2068 i40e_del_filter(vsi
, vsi
->netdev
->dev_addr
,
2069 I40E_VLAN_ANY
, is_vf
, is_netdev
);
2070 add_f
= i40e_add_filter(vsi
, vsi
->netdev
->dev_addr
, 0,
2073 dev_info(&vsi
->back
->pdev
->dev
,
2074 "Could not add filter 0 for %pM\n",
2075 vsi
->netdev
->dev_addr
);
2081 /* Do not assume that I40E_VLAN_ANY should be reset to VLAN 0 */
2082 if (vid
> 0 && !vsi
->info
.pvid
) {
2083 list_for_each_entry(f
, &vsi
->mac_filter_list
, list
) {
2084 if (i40e_find_filter(vsi
, f
->macaddr
, I40E_VLAN_ANY
,
2085 is_vf
, is_netdev
)) {
2086 i40e_del_filter(vsi
, f
->macaddr
, I40E_VLAN_ANY
,
2088 add_f
= i40e_add_filter(vsi
, f
->macaddr
,
2089 0, is_vf
, is_netdev
);
2091 dev_info(&vsi
->back
->pdev
->dev
,
2092 "Could not add filter 0 for %pM\n",
2100 if (test_bit(__I40E_DOWN
, &vsi
->back
->state
) ||
2101 test_bit(__I40E_RESET_RECOVERY_PENDING
, &vsi
->back
->state
))
2104 return i40e_sync_vsi_filters(vsi
);
2108 * i40e_vsi_kill_vlan - Remove vsi membership for given vlan
2109 * @vsi: the vsi being configured
2110 * @vid: vlan id to be removed (0 = untagged only , -1 = any)
2112 * Return: 0 on success or negative otherwise
2114 int i40e_vsi_kill_vlan(struct i40e_vsi
*vsi
, s16 vid
)
2116 struct net_device
*netdev
= vsi
->netdev
;
2117 struct i40e_mac_filter
*f
, *add_f
;
2118 bool is_vf
, is_netdev
;
2119 int filter_count
= 0;
2121 is_vf
= (vsi
->type
== I40E_VSI_SRIOV
);
2122 is_netdev
= !!(netdev
);
2125 i40e_del_filter(vsi
, netdev
->dev_addr
, vid
, is_vf
, is_netdev
);
2127 list_for_each_entry(f
, &vsi
->mac_filter_list
, list
)
2128 i40e_del_filter(vsi
, f
->macaddr
, vid
, is_vf
, is_netdev
);
2130 /* go through all the filters for this VSI and if there is only
2131 * vid == 0 it means there are no other filters, so vid 0 must
2132 * be replaced with -1. This signifies that we should from now
2133 * on accept any traffic (with any tag present, or untagged)
2135 list_for_each_entry(f
, &vsi
->mac_filter_list
, list
) {
2138 ether_addr_equal(netdev
->dev_addr
, f
->macaddr
))
2146 if (!filter_count
&& is_netdev
) {
2147 i40e_del_filter(vsi
, netdev
->dev_addr
, 0, is_vf
, is_netdev
);
2148 f
= i40e_add_filter(vsi
, netdev
->dev_addr
, I40E_VLAN_ANY
,
2151 dev_info(&vsi
->back
->pdev
->dev
,
2152 "Could not add filter %d for %pM\n",
2153 I40E_VLAN_ANY
, netdev
->dev_addr
);
2158 if (!filter_count
) {
2159 list_for_each_entry(f
, &vsi
->mac_filter_list
, list
) {
2160 i40e_del_filter(vsi
, f
->macaddr
, 0, is_vf
, is_netdev
);
2161 add_f
= i40e_add_filter(vsi
, f
->macaddr
, I40E_VLAN_ANY
,
2164 dev_info(&vsi
->back
->pdev
->dev
,
2165 "Could not add filter %d for %pM\n",
2166 I40E_VLAN_ANY
, f
->macaddr
);
2172 if (test_bit(__I40E_DOWN
, &vsi
->back
->state
) ||
2173 test_bit(__I40E_RESET_RECOVERY_PENDING
, &vsi
->back
->state
))
2176 return i40e_sync_vsi_filters(vsi
);
2180 * i40e_vlan_rx_add_vid - Add a vlan id filter to HW offload
2181 * @netdev: network interface to be adjusted
2182 * @vid: vlan id to be added
2184 * net_device_ops implementation for adding vlan ids
2187 int i40e_vlan_rx_add_vid(struct net_device
*netdev
,
2188 __always_unused __be16 proto
, u16 vid
)
2190 static int i40e_vlan_rx_add_vid(struct net_device
*netdev
,
2191 __always_unused __be16 proto
, u16 vid
)
2194 struct i40e_netdev_priv
*np
= netdev_priv(netdev
);
2195 struct i40e_vsi
*vsi
= np
->vsi
;
2201 netdev_info(netdev
, "adding %pM vid=%d\n", netdev
->dev_addr
, vid
);
2203 /* If the network stack called us with vid = 0 then
2204 * it is asking to receive priority tagged packets with
2205 * vlan id 0. Our HW receives them by default when configured
2206 * to receive untagged packets so there is no need to add an
2207 * extra filter for vlan 0 tagged packets.
2210 ret
= i40e_vsi_add_vlan(vsi
, vid
);
2212 if (!ret
&& (vid
< VLAN_N_VID
))
2213 set_bit(vid
, vsi
->active_vlans
);
2219 * i40e_vlan_rx_kill_vid - Remove a vlan id filter from HW offload
2220 * @netdev: network interface to be adjusted
2221 * @vid: vlan id to be removed
2223 * net_device_ops implementation for removing vlan ids
2226 int i40e_vlan_rx_kill_vid(struct net_device
*netdev
,
2227 __always_unused __be16 proto
, u16 vid
)
2229 static int i40e_vlan_rx_kill_vid(struct net_device
*netdev
,
2230 __always_unused __be16 proto
, u16 vid
)
2233 struct i40e_netdev_priv
*np
= netdev_priv(netdev
);
2234 struct i40e_vsi
*vsi
= np
->vsi
;
2236 netdev_info(netdev
, "removing %pM vid=%d\n", netdev
->dev_addr
, vid
);
2238 /* return code is ignored as there is nothing a user
2239 * can do about failure to remove and a log message was
2240 * already printed from the other function
2242 i40e_vsi_kill_vlan(vsi
, vid
);
2244 clear_bit(vid
, vsi
->active_vlans
);
2250 * i40e_restore_vlan - Reinstate vlans when vsi/netdev comes back up
2251 * @vsi: the vsi being brought back up
2253 static void i40e_restore_vlan(struct i40e_vsi
*vsi
)
2260 i40e_vlan_rx_register(vsi
->netdev
, vsi
->netdev
->features
);
2262 for_each_set_bit(vid
, vsi
->active_vlans
, VLAN_N_VID
)
2263 i40e_vlan_rx_add_vid(vsi
->netdev
, htons(ETH_P_8021Q
),
2268 * i40e_vsi_add_pvid - Add pvid for the VSI
2269 * @vsi: the vsi being adjusted
2270 * @vid: the vlan id to set as a PVID
2272 int i40e_vsi_add_pvid(struct i40e_vsi
*vsi
, u16 vid
)
2274 struct i40e_vsi_context ctxt
;
2277 vsi
->info
.valid_sections
= cpu_to_le16(I40E_AQ_VSI_PROP_VLAN_VALID
);
2278 vsi
->info
.pvid
= cpu_to_le16(vid
);
2279 vsi
->info
.port_vlan_flags
= I40E_AQ_VSI_PVLAN_MODE_TAGGED
|
2280 I40E_AQ_VSI_PVLAN_INSERT_PVID
|
2281 I40E_AQ_VSI_PVLAN_EMOD_STR
;
2283 ctxt
.seid
= vsi
->seid
;
2284 memcpy(&ctxt
.info
, &vsi
->info
, sizeof(vsi
->info
));
2285 aq_ret
= i40e_aq_update_vsi_params(&vsi
->back
->hw
, &ctxt
, NULL
);
2287 dev_info(&vsi
->back
->pdev
->dev
,
2288 "%s: update vsi failed, aq_err=%d\n",
2289 __func__
, vsi
->back
->hw
.aq
.asq_last_status
);
2297 * i40e_vsi_remove_pvid - Remove the pvid from the VSI
2298 * @vsi: the vsi being adjusted
2300 * Just use the vlan_rx_register() service to put it back to normal
2302 void i40e_vsi_remove_pvid(struct i40e_vsi
*vsi
)
2304 i40e_vlan_stripping_disable(vsi
);
2310 * i40e_vsi_setup_tx_resources - Allocate VSI Tx queue resources
2311 * @vsi: ptr to the VSI
2313 * If this function returns with an error, then it's possible one or
2314 * more of the rings is populated (while the rest are not). It is the
2315 * callers duty to clean those orphaned rings.
2317 * Return 0 on success, negative on failure
2319 static int i40e_vsi_setup_tx_resources(struct i40e_vsi
*vsi
)
2323 for (i
= 0; i
< vsi
->num_queue_pairs
&& !err
; i
++)
2324 err
= i40e_setup_tx_descriptors(vsi
->tx_rings
[i
]);
2330 * i40e_vsi_free_tx_resources - Free Tx resources for VSI queues
2331 * @vsi: ptr to the VSI
2333 * Free VSI's transmit software resources
2335 static void i40e_vsi_free_tx_resources(struct i40e_vsi
*vsi
)
2342 for (i
= 0; i
< vsi
->num_queue_pairs
; i
++)
2343 if (vsi
->tx_rings
[i
] && vsi
->tx_rings
[i
]->desc
)
2344 i40e_free_tx_resources(vsi
->tx_rings
[i
]);
2348 * i40e_vsi_setup_rx_resources - Allocate VSI queues Rx resources
2349 * @vsi: ptr to the VSI
2351 * If this function returns with an error, then it's possible one or
2352 * more of the rings is populated (while the rest are not). It is the
2353 * callers duty to clean those orphaned rings.
2355 * Return 0 on success, negative on failure
2357 static int i40e_vsi_setup_rx_resources(struct i40e_vsi
*vsi
)
2361 for (i
= 0; i
< vsi
->num_queue_pairs
&& !err
; i
++)
2362 err
= i40e_setup_rx_descriptors(vsi
->rx_rings
[i
]);
2364 i40e_fcoe_setup_ddp_resources(vsi
);
2370 * i40e_vsi_free_rx_resources - Free Rx Resources for VSI queues
2371 * @vsi: ptr to the VSI
2373 * Free all receive software resources
2375 static void i40e_vsi_free_rx_resources(struct i40e_vsi
*vsi
)
2382 for (i
= 0; i
< vsi
->num_queue_pairs
; i
++)
2383 if (vsi
->rx_rings
[i
] && vsi
->rx_rings
[i
]->desc
)
2384 i40e_free_rx_resources(vsi
->rx_rings
[i
]);
2386 i40e_fcoe_free_ddp_resources(vsi
);
2391 * i40e_config_xps_tx_ring - Configure XPS for a Tx ring
2392 * @ring: The Tx ring to configure
2394 * This enables/disables XPS for a given Tx descriptor ring
2395 * based on the TCs enabled for the VSI that ring belongs to.
2397 static void i40e_config_xps_tx_ring(struct i40e_ring
*ring
)
2399 struct i40e_vsi
*vsi
= ring
->vsi
;
2402 if (!ring
->q_vector
|| !ring
->netdev
)
2405 /* Single TC mode enable XPS */
2406 if (vsi
->tc_config
.numtc
<= 1) {
2407 if (!test_and_set_bit(__I40E_TX_XPS_INIT_DONE
, &ring
->state
))
2408 netif_set_xps_queue(ring
->netdev
,
2409 &ring
->q_vector
->affinity_mask
,
2411 } else if (alloc_cpumask_var(&mask
, GFP_KERNEL
)) {
2412 /* Disable XPS to allow selection based on TC */
2413 bitmap_zero(cpumask_bits(mask
), nr_cpumask_bits
);
2414 netif_set_xps_queue(ring
->netdev
, mask
, ring
->queue_index
);
2415 free_cpumask_var(mask
);
2420 * i40e_configure_tx_ring - Configure a transmit ring context and rest
2421 * @ring: The Tx ring to configure
2423 * Configure the Tx descriptor ring in the HMC context.
2425 static int i40e_configure_tx_ring(struct i40e_ring
*ring
)
2427 struct i40e_vsi
*vsi
= ring
->vsi
;
2428 u16 pf_q
= vsi
->base_queue
+ ring
->queue_index
;
2429 struct i40e_hw
*hw
= &vsi
->back
->hw
;
2430 struct i40e_hmc_obj_txq tx_ctx
;
2431 i40e_status err
= 0;
2434 /* some ATR related tx ring init */
2435 if (vsi
->back
->flags
& I40E_FLAG_FD_ATR_ENABLED
) {
2436 ring
->atr_sample_rate
= vsi
->back
->atr_sample_rate
;
2437 ring
->atr_count
= 0;
2439 ring
->atr_sample_rate
= 0;
2443 i40e_config_xps_tx_ring(ring
);
2445 /* clear the context structure first */
2446 memset(&tx_ctx
, 0, sizeof(tx_ctx
));
2448 tx_ctx
.new_context
= 1;
2449 tx_ctx
.base
= (ring
->dma
/ 128);
2450 tx_ctx
.qlen
= ring
->count
;
2451 tx_ctx
.fd_ena
= !!(vsi
->back
->flags
& (I40E_FLAG_FD_SB_ENABLED
|
2452 I40E_FLAG_FD_ATR_ENABLED
));
2454 tx_ctx
.fc_ena
= (vsi
->type
== I40E_VSI_FCOE
);
2456 tx_ctx
.timesync_ena
= !!(vsi
->back
->flags
& I40E_FLAG_PTP
);
2457 /* FDIR VSI tx ring can still use RS bit and writebacks */
2458 if (vsi
->type
!= I40E_VSI_FDIR
)
2459 tx_ctx
.head_wb_ena
= 1;
2460 tx_ctx
.head_wb_addr
= ring
->dma
+
2461 (ring
->count
* sizeof(struct i40e_tx_desc
));
2463 /* As part of VSI creation/update, FW allocates certain
2464 * Tx arbitration queue sets for each TC enabled for
2465 * the VSI. The FW returns the handles to these queue
2466 * sets as part of the response buffer to Add VSI,
2467 * Update VSI, etc. AQ commands. It is expected that
2468 * these queue set handles be associated with the Tx
2469 * queues by the driver as part of the TX queue context
2470 * initialization. This has to be done regardless of
2471 * DCB as by default everything is mapped to TC0.
2473 tx_ctx
.rdylist
= le16_to_cpu(vsi
->info
.qs_handle
[ring
->dcb_tc
]);
2474 tx_ctx
.rdylist_act
= 0;
2476 /* clear the context in the HMC */
2477 err
= i40e_clear_lan_tx_queue_context(hw
, pf_q
);
2479 dev_info(&vsi
->back
->pdev
->dev
,
2480 "Failed to clear LAN Tx queue context on Tx ring %d (pf_q %d), error: %d\n",
2481 ring
->queue_index
, pf_q
, err
);
2485 /* set the context in the HMC */
2486 err
= i40e_set_lan_tx_queue_context(hw
, pf_q
, &tx_ctx
);
2488 dev_info(&vsi
->back
->pdev
->dev
,
2489 "Failed to set LAN Tx queue context on Tx ring %d (pf_q %d, error: %d\n",
2490 ring
->queue_index
, pf_q
, err
);
2494 /* Now associate this queue with this PCI function */
2495 if (vsi
->type
== I40E_VSI_VMDQ2
) {
2496 qtx_ctl
= I40E_QTX_CTL_VM_QUEUE
;
2497 qtx_ctl
|= ((vsi
->id
) << I40E_QTX_CTL_VFVM_INDX_SHIFT
) &
2498 I40E_QTX_CTL_VFVM_INDX_MASK
;
2500 qtx_ctl
= I40E_QTX_CTL_PF_QUEUE
;
2503 qtx_ctl
|= ((hw
->pf_id
<< I40E_QTX_CTL_PF_INDX_SHIFT
) &
2504 I40E_QTX_CTL_PF_INDX_MASK
);
2505 wr32(hw
, I40E_QTX_CTL(pf_q
), qtx_ctl
);
2508 clear_bit(__I40E_HANG_CHECK_ARMED
, &ring
->state
);
2510 /* cache tail off for easier writes later */
2511 ring
->tail
= hw
->hw_addr
+ I40E_QTX_TAIL(pf_q
);
2517 * i40e_configure_rx_ring - Configure a receive ring context
2518 * @ring: The Rx ring to configure
2520 * Configure the Rx descriptor ring in the HMC context.
2522 static int i40e_configure_rx_ring(struct i40e_ring
*ring
)
2524 struct i40e_vsi
*vsi
= ring
->vsi
;
2525 u32 chain_len
= vsi
->back
->hw
.func_caps
.rx_buf_chain_len
;
2526 u16 pf_q
= vsi
->base_queue
+ ring
->queue_index
;
2527 struct i40e_hw
*hw
= &vsi
->back
->hw
;
2528 struct i40e_hmc_obj_rxq rx_ctx
;
2529 i40e_status err
= 0;
2533 /* clear the context structure first */
2534 memset(&rx_ctx
, 0, sizeof(rx_ctx
));
2536 ring
->rx_buf_len
= vsi
->rx_buf_len
;
2537 ring
->rx_hdr_len
= vsi
->rx_hdr_len
;
2539 rx_ctx
.dbuff
= ring
->rx_buf_len
>> I40E_RXQ_CTX_DBUFF_SHIFT
;
2540 rx_ctx
.hbuff
= ring
->rx_hdr_len
>> I40E_RXQ_CTX_HBUFF_SHIFT
;
2542 rx_ctx
.base
= (ring
->dma
/ 128);
2543 rx_ctx
.qlen
= ring
->count
;
2545 if (vsi
->back
->flags
& I40E_FLAG_16BYTE_RX_DESC_ENABLED
) {
2546 set_ring_16byte_desc_enabled(ring
);
2552 rx_ctx
.dtype
= vsi
->dtype
;
2554 set_ring_ps_enabled(ring
);
2555 rx_ctx
.hsplit_0
= I40E_RX_SPLIT_L2
|
2557 I40E_RX_SPLIT_TCP_UDP
|
2560 rx_ctx
.hsplit_0
= 0;
2563 rx_ctx
.rxmax
= min_t(u16
, vsi
->max_frame
,
2564 (chain_len
* ring
->rx_buf_len
));
2565 if (hw
->revision_id
== 0)
2566 rx_ctx
.lrxqthresh
= 0;
2568 rx_ctx
.lrxqthresh
= 2;
2569 rx_ctx
.crcstrip
= 1;
2573 rx_ctx
.fc_ena
= (vsi
->type
== I40E_VSI_FCOE
);
2575 /* set the prefena field to 1 because the manual says to */
2578 /* clear the context in the HMC */
2579 err
= i40e_clear_lan_rx_queue_context(hw
, pf_q
);
2581 dev_info(&vsi
->back
->pdev
->dev
,
2582 "Failed to clear LAN Rx queue context on Rx ring %d (pf_q %d), error: %d\n",
2583 ring
->queue_index
, pf_q
, err
);
2587 /* set the context in the HMC */
2588 err
= i40e_set_lan_rx_queue_context(hw
, pf_q
, &rx_ctx
);
2590 dev_info(&vsi
->back
->pdev
->dev
,
2591 "Failed to set LAN Rx queue context on Rx ring %d (pf_q %d), error: %d\n",
2592 ring
->queue_index
, pf_q
, err
);
2596 /* cache tail for quicker writes, and clear the reg before use */
2597 ring
->tail
= hw
->hw_addr
+ I40E_QRX_TAIL(pf_q
);
2598 writel(0, ring
->tail
);
2600 if (ring_is_ps_enabled(ring
)) {
2601 i40e_alloc_rx_headers(ring
);
2602 i40e_alloc_rx_buffers_ps(ring
, I40E_DESC_UNUSED(ring
));
2604 i40e_alloc_rx_buffers_1buf(ring
, I40E_DESC_UNUSED(ring
));
2611 * i40e_vsi_configure_tx - Configure the VSI for Tx
2612 * @vsi: VSI structure describing this set of rings and resources
2614 * Configure the Tx VSI for operation.
2616 static int i40e_vsi_configure_tx(struct i40e_vsi
*vsi
)
2621 for (i
= 0; (i
< vsi
->num_queue_pairs
) && !err
; i
++)
2622 err
= i40e_configure_tx_ring(vsi
->tx_rings
[i
]);
2628 * i40e_vsi_configure_rx - Configure the VSI for Rx
2629 * @vsi: the VSI being configured
2631 * Configure the Rx VSI for operation.
2633 static int i40e_vsi_configure_rx(struct i40e_vsi
*vsi
)
2638 if (vsi
->netdev
&& (vsi
->netdev
->mtu
> ETH_DATA_LEN
))
2639 vsi
->max_frame
= vsi
->netdev
->mtu
+ ETH_HLEN
2640 + ETH_FCS_LEN
+ VLAN_HLEN
;
2642 vsi
->max_frame
= I40E_RXBUFFER_2048
;
2644 /* figure out correct receive buffer length */
2645 switch (vsi
->back
->flags
& (I40E_FLAG_RX_1BUF_ENABLED
|
2646 I40E_FLAG_RX_PS_ENABLED
)) {
2647 case I40E_FLAG_RX_1BUF_ENABLED
:
2648 vsi
->rx_hdr_len
= 0;
2649 vsi
->rx_buf_len
= vsi
->max_frame
;
2650 vsi
->dtype
= I40E_RX_DTYPE_NO_SPLIT
;
2652 case I40E_FLAG_RX_PS_ENABLED
:
2653 vsi
->rx_hdr_len
= I40E_RX_HDR_SIZE
;
2654 vsi
->rx_buf_len
= I40E_RXBUFFER_2048
;
2655 vsi
->dtype
= I40E_RX_DTYPE_HEADER_SPLIT
;
2658 vsi
->rx_hdr_len
= I40E_RX_HDR_SIZE
;
2659 vsi
->rx_buf_len
= I40E_RXBUFFER_2048
;
2660 vsi
->dtype
= I40E_RX_DTYPE_SPLIT_ALWAYS
;
2665 /* setup rx buffer for FCoE */
2666 if ((vsi
->type
== I40E_VSI_FCOE
) &&
2667 (vsi
->back
->flags
& I40E_FLAG_FCOE_ENABLED
)) {
2668 vsi
->rx_hdr_len
= 0;
2669 vsi
->rx_buf_len
= I40E_RXBUFFER_3072
;
2670 vsi
->max_frame
= I40E_RXBUFFER_3072
;
2671 vsi
->dtype
= I40E_RX_DTYPE_NO_SPLIT
;
2674 #endif /* I40E_FCOE */
2675 /* round up for the chip's needs */
2676 vsi
->rx_hdr_len
= ALIGN(vsi
->rx_hdr_len
,
2677 (1 << I40E_RXQ_CTX_HBUFF_SHIFT
));
2678 vsi
->rx_buf_len
= ALIGN(vsi
->rx_buf_len
,
2679 (1 << I40E_RXQ_CTX_DBUFF_SHIFT
));
2681 /* set up individual rings */
2682 for (i
= 0; i
< vsi
->num_queue_pairs
&& !err
; i
++)
2683 err
= i40e_configure_rx_ring(vsi
->rx_rings
[i
]);
2689 * i40e_vsi_config_dcb_rings - Update rings to reflect DCB TC
2690 * @vsi: ptr to the VSI
2692 static void i40e_vsi_config_dcb_rings(struct i40e_vsi
*vsi
)
2694 struct i40e_ring
*tx_ring
, *rx_ring
;
2695 u16 qoffset
, qcount
;
2698 if (!(vsi
->back
->flags
& I40E_FLAG_DCB_ENABLED
)) {
2699 /* Reset the TC information */
2700 for (i
= 0; i
< vsi
->num_queue_pairs
; i
++) {
2701 rx_ring
= vsi
->rx_rings
[i
];
2702 tx_ring
= vsi
->tx_rings
[i
];
2703 rx_ring
->dcb_tc
= 0;
2704 tx_ring
->dcb_tc
= 0;
2708 for (n
= 0; n
< I40E_MAX_TRAFFIC_CLASS
; n
++) {
2709 if (!(vsi
->tc_config
.enabled_tc
& (1 << n
)))
2712 qoffset
= vsi
->tc_config
.tc_info
[n
].qoffset
;
2713 qcount
= vsi
->tc_config
.tc_info
[n
].qcount
;
2714 for (i
= qoffset
; i
< (qoffset
+ qcount
); i
++) {
2715 rx_ring
= vsi
->rx_rings
[i
];
2716 tx_ring
= vsi
->tx_rings
[i
];
2717 rx_ring
->dcb_tc
= n
;
2718 tx_ring
->dcb_tc
= n
;
2724 * i40e_set_vsi_rx_mode - Call set_rx_mode on a VSI
2725 * @vsi: ptr to the VSI
2727 static void i40e_set_vsi_rx_mode(struct i40e_vsi
*vsi
)
2730 i40e_set_rx_mode(vsi
->netdev
);
2734 * i40e_fdir_filter_restore - Restore the Sideband Flow Director filters
2735 * @vsi: Pointer to the targeted VSI
2737 * This function replays the hlist on the hw where all the SB Flow Director
2738 * filters were saved.
2740 static void i40e_fdir_filter_restore(struct i40e_vsi
*vsi
)
2742 struct i40e_fdir_filter
*filter
;
2743 struct i40e_pf
*pf
= vsi
->back
;
2744 struct hlist_node
*node
;
2746 if (!(pf
->flags
& I40E_FLAG_FD_SB_ENABLED
))
2749 hlist_for_each_entry_safe(filter
, node
,
2750 &pf
->fdir_filter_list
, fdir_node
) {
2751 i40e_add_del_fdir(vsi
, filter
, true);
2756 * i40e_vsi_configure - Set up the VSI for action
2757 * @vsi: the VSI being configured
2759 static int i40e_vsi_configure(struct i40e_vsi
*vsi
)
2763 i40e_set_vsi_rx_mode(vsi
);
2764 i40e_restore_vlan(vsi
);
2765 i40e_vsi_config_dcb_rings(vsi
);
2766 err
= i40e_vsi_configure_tx(vsi
);
2768 err
= i40e_vsi_configure_rx(vsi
);
2774 * i40e_vsi_configure_msix - MSIX mode Interrupt Config in the HW
2775 * @vsi: the VSI being configured
2777 static void i40e_vsi_configure_msix(struct i40e_vsi
*vsi
)
2779 struct i40e_pf
*pf
= vsi
->back
;
2780 struct i40e_q_vector
*q_vector
;
2781 struct i40e_hw
*hw
= &pf
->hw
;
2787 /* The interrupt indexing is offset by 1 in the PFINT_ITRn
2788 * and PFINT_LNKLSTn registers, e.g.:
2789 * PFINT_ITRn[0..n-1] gets msix-1..msix-n (qpair interrupts)
2791 qp
= vsi
->base_queue
;
2792 vector
= vsi
->base_vector
;
2793 for (i
= 0; i
< vsi
->num_q_vectors
; i
++, vector
++) {
2794 q_vector
= vsi
->q_vectors
[i
];
2795 q_vector
->rx
.itr
= ITR_TO_REG(vsi
->rx_itr_setting
);
2796 q_vector
->rx
.latency_range
= I40E_LOW_LATENCY
;
2797 wr32(hw
, I40E_PFINT_ITRN(I40E_RX_ITR
, vector
- 1),
2799 q_vector
->tx
.itr
= ITR_TO_REG(vsi
->tx_itr_setting
);
2800 q_vector
->tx
.latency_range
= I40E_LOW_LATENCY
;
2801 wr32(hw
, I40E_PFINT_ITRN(I40E_TX_ITR
, vector
- 1),
2804 /* Linked list for the queuepairs assigned to this vector */
2805 wr32(hw
, I40E_PFINT_LNKLSTN(vector
- 1), qp
);
2806 for (q
= 0; q
< q_vector
->num_ringpairs
; q
++) {
2807 val
= I40E_QINT_RQCTL_CAUSE_ENA_MASK
|
2808 (I40E_RX_ITR
<< I40E_QINT_RQCTL_ITR_INDX_SHIFT
) |
2809 (vector
<< I40E_QINT_RQCTL_MSIX_INDX_SHIFT
) |
2810 (qp
<< I40E_QINT_RQCTL_NEXTQ_INDX_SHIFT
)|
2812 << I40E_QINT_RQCTL_NEXTQ_TYPE_SHIFT
);
2814 wr32(hw
, I40E_QINT_RQCTL(qp
), val
);
2816 val
= I40E_QINT_TQCTL_CAUSE_ENA_MASK
|
2817 (I40E_TX_ITR
<< I40E_QINT_TQCTL_ITR_INDX_SHIFT
) |
2818 (vector
<< I40E_QINT_TQCTL_MSIX_INDX_SHIFT
) |
2819 ((qp
+1) << I40E_QINT_TQCTL_NEXTQ_INDX_SHIFT
)|
2821 << I40E_QINT_TQCTL_NEXTQ_TYPE_SHIFT
);
2823 /* Terminate the linked list */
2824 if (q
== (q_vector
->num_ringpairs
- 1))
2825 val
|= (I40E_QUEUE_END_OF_LIST
2826 << I40E_QINT_TQCTL_NEXTQ_INDX_SHIFT
);
2828 wr32(hw
, I40E_QINT_TQCTL(qp
), val
);
2837 * i40e_enable_misc_int_causes - enable the non-queue interrupts
2838 * @hw: ptr to the hardware info
2840 static void i40e_enable_misc_int_causes(struct i40e_pf
*pf
)
2842 struct i40e_hw
*hw
= &pf
->hw
;
2845 /* clear things first */
2846 wr32(hw
, I40E_PFINT_ICR0_ENA
, 0); /* disable all */
2847 rd32(hw
, I40E_PFINT_ICR0
); /* read to clear */
2849 val
= I40E_PFINT_ICR0_ENA_ECC_ERR_MASK
|
2850 I40E_PFINT_ICR0_ENA_MAL_DETECT_MASK
|
2851 I40E_PFINT_ICR0_ENA_GRST_MASK
|
2852 I40E_PFINT_ICR0_ENA_PCI_EXCEPTION_MASK
|
2853 I40E_PFINT_ICR0_ENA_GPIO_MASK
|
2854 I40E_PFINT_ICR0_ENA_HMC_ERR_MASK
|
2855 I40E_PFINT_ICR0_ENA_VFLR_MASK
|
2856 I40E_PFINT_ICR0_ENA_ADMINQ_MASK
;
2858 if (pf
->flags
& I40E_FLAG_PTP
)
2859 val
|= I40E_PFINT_ICR0_ENA_TIMESYNC_MASK
;
2861 wr32(hw
, I40E_PFINT_ICR0_ENA
, val
);
2863 /* SW_ITR_IDX = 0, but don't change INTENA */
2864 wr32(hw
, I40E_PFINT_DYN_CTL0
, I40E_PFINT_DYN_CTL0_SW_ITR_INDX_MASK
|
2865 I40E_PFINT_DYN_CTL0_INTENA_MSK_MASK
);
2867 /* OTHER_ITR_IDX = 0 */
2868 wr32(hw
, I40E_PFINT_STAT_CTL0
, 0);
2872 * i40e_configure_msi_and_legacy - Legacy mode interrupt config in the HW
2873 * @vsi: the VSI being configured
2875 static void i40e_configure_msi_and_legacy(struct i40e_vsi
*vsi
)
2877 struct i40e_q_vector
*q_vector
= vsi
->q_vectors
[0];
2878 struct i40e_pf
*pf
= vsi
->back
;
2879 struct i40e_hw
*hw
= &pf
->hw
;
2882 /* set the ITR configuration */
2883 q_vector
->rx
.itr
= ITR_TO_REG(vsi
->rx_itr_setting
);
2884 q_vector
->rx
.latency_range
= I40E_LOW_LATENCY
;
2885 wr32(hw
, I40E_PFINT_ITR0(I40E_RX_ITR
), q_vector
->rx
.itr
);
2886 q_vector
->tx
.itr
= ITR_TO_REG(vsi
->tx_itr_setting
);
2887 q_vector
->tx
.latency_range
= I40E_LOW_LATENCY
;
2888 wr32(hw
, I40E_PFINT_ITR0(I40E_TX_ITR
), q_vector
->tx
.itr
);
2890 i40e_enable_misc_int_causes(pf
);
2892 /* FIRSTQ_INDX = 0, FIRSTQ_TYPE = 0 (rx) */
2893 wr32(hw
, I40E_PFINT_LNKLST0
, 0);
2895 /* Associate the queue pair to the vector and enable the queue int */
2896 val
= I40E_QINT_RQCTL_CAUSE_ENA_MASK
|
2897 (I40E_RX_ITR
<< I40E_QINT_RQCTL_ITR_INDX_SHIFT
) |
2898 (I40E_QUEUE_TYPE_TX
<< I40E_QINT_TQCTL_NEXTQ_TYPE_SHIFT
);
2900 wr32(hw
, I40E_QINT_RQCTL(0), val
);
2902 val
= I40E_QINT_TQCTL_CAUSE_ENA_MASK
|
2903 (I40E_TX_ITR
<< I40E_QINT_TQCTL_ITR_INDX_SHIFT
) |
2904 (I40E_QUEUE_END_OF_LIST
<< I40E_QINT_TQCTL_NEXTQ_INDX_SHIFT
);
2906 wr32(hw
, I40E_QINT_TQCTL(0), val
);
2911 * i40e_irq_dynamic_disable_icr0 - Disable default interrupt generation for icr0
2912 * @pf: board private structure
2914 void i40e_irq_dynamic_disable_icr0(struct i40e_pf
*pf
)
2916 struct i40e_hw
*hw
= &pf
->hw
;
2918 wr32(hw
, I40E_PFINT_DYN_CTL0
,
2919 I40E_ITR_NONE
<< I40E_PFINT_DYN_CTLN_ITR_INDX_SHIFT
);
2924 * i40e_irq_dynamic_enable_icr0 - Enable default interrupt generation for icr0
2925 * @pf: board private structure
2927 void i40e_irq_dynamic_enable_icr0(struct i40e_pf
*pf
)
2929 struct i40e_hw
*hw
= &pf
->hw
;
2932 val
= I40E_PFINT_DYN_CTL0_INTENA_MASK
|
2933 I40E_PFINT_DYN_CTL0_CLEARPBA_MASK
|
2934 (I40E_ITR_NONE
<< I40E_PFINT_DYN_CTL0_ITR_INDX_SHIFT
);
2936 wr32(hw
, I40E_PFINT_DYN_CTL0
, val
);
2941 * i40e_irq_dynamic_enable - Enable default interrupt generation settings
2942 * @vsi: pointer to a vsi
2943 * @vector: enable a particular Hw Interrupt vector
2945 void i40e_irq_dynamic_enable(struct i40e_vsi
*vsi
, int vector
)
2947 struct i40e_pf
*pf
= vsi
->back
;
2948 struct i40e_hw
*hw
= &pf
->hw
;
2951 val
= I40E_PFINT_DYN_CTLN_INTENA_MASK
|
2952 I40E_PFINT_DYN_CTLN_CLEARPBA_MASK
|
2953 (I40E_ITR_NONE
<< I40E_PFINT_DYN_CTLN_ITR_INDX_SHIFT
);
2954 wr32(hw
, I40E_PFINT_DYN_CTLN(vector
- 1), val
);
2955 /* skip the flush */
2959 * i40e_irq_dynamic_disable - Disable default interrupt generation settings
2960 * @vsi: pointer to a vsi
2961 * @vector: disable a particular Hw Interrupt vector
2963 void i40e_irq_dynamic_disable(struct i40e_vsi
*vsi
, int vector
)
2965 struct i40e_pf
*pf
= vsi
->back
;
2966 struct i40e_hw
*hw
= &pf
->hw
;
2969 val
= I40E_ITR_NONE
<< I40E_PFINT_DYN_CTLN_ITR_INDX_SHIFT
;
2970 wr32(hw
, I40E_PFINT_DYN_CTLN(vector
- 1), val
);
2975 * i40e_msix_clean_rings - MSIX mode Interrupt Handler
2976 * @irq: interrupt number
2977 * @data: pointer to a q_vector
2979 static irqreturn_t
i40e_msix_clean_rings(int irq
, void *data
)
2981 struct i40e_q_vector
*q_vector
= data
;
2983 if (!q_vector
->tx
.ring
&& !q_vector
->rx
.ring
)
2986 napi_schedule(&q_vector
->napi
);
2992 * i40e_vsi_request_irq_msix - Initialize MSI-X interrupts
2993 * @vsi: the VSI being configured
2994 * @basename: name for the vector
2996 * Allocates MSI-X vectors and requests interrupts from the kernel.
2998 static int i40e_vsi_request_irq_msix(struct i40e_vsi
*vsi
, char *basename
)
3000 int q_vectors
= vsi
->num_q_vectors
;
3001 struct i40e_pf
*pf
= vsi
->back
;
3002 int base
= vsi
->base_vector
;
3007 for (vector
= 0; vector
< q_vectors
; vector
++) {
3008 struct i40e_q_vector
*q_vector
= vsi
->q_vectors
[vector
];
3010 if (q_vector
->tx
.ring
&& q_vector
->rx
.ring
) {
3011 snprintf(q_vector
->name
, sizeof(q_vector
->name
) - 1,
3012 "%s-%s-%d", basename
, "TxRx", rx_int_idx
++);
3014 } else if (q_vector
->rx
.ring
) {
3015 snprintf(q_vector
->name
, sizeof(q_vector
->name
) - 1,
3016 "%s-%s-%d", basename
, "rx", rx_int_idx
++);
3017 } else if (q_vector
->tx
.ring
) {
3018 snprintf(q_vector
->name
, sizeof(q_vector
->name
) - 1,
3019 "%s-%s-%d", basename
, "tx", tx_int_idx
++);
3021 /* skip this unused q_vector */
3024 err
= request_irq(pf
->msix_entries
[base
+ vector
].vector
,
3030 dev_info(&pf
->pdev
->dev
,
3031 "%s: request_irq failed, error: %d\n",
3033 goto free_queue_irqs
;
3035 /* assign the mask for this irq */
3036 irq_set_affinity_hint(pf
->msix_entries
[base
+ vector
].vector
,
3037 &q_vector
->affinity_mask
);
3040 vsi
->irqs_ready
= true;
3046 irq_set_affinity_hint(pf
->msix_entries
[base
+ vector
].vector
,
3048 free_irq(pf
->msix_entries
[base
+ vector
].vector
,
3049 &(vsi
->q_vectors
[vector
]));
3055 * i40e_vsi_disable_irq - Mask off queue interrupt generation on the VSI
3056 * @vsi: the VSI being un-configured
3058 static void i40e_vsi_disable_irq(struct i40e_vsi
*vsi
)
3060 struct i40e_pf
*pf
= vsi
->back
;
3061 struct i40e_hw
*hw
= &pf
->hw
;
3062 int base
= vsi
->base_vector
;
3065 for (i
= 0; i
< vsi
->num_queue_pairs
; i
++) {
3066 wr32(hw
, I40E_QINT_TQCTL(vsi
->tx_rings
[i
]->reg_idx
), 0);
3067 wr32(hw
, I40E_QINT_RQCTL(vsi
->rx_rings
[i
]->reg_idx
), 0);
3070 if (pf
->flags
& I40E_FLAG_MSIX_ENABLED
) {
3071 for (i
= vsi
->base_vector
;
3072 i
< (vsi
->num_q_vectors
+ vsi
->base_vector
); i
++)
3073 wr32(hw
, I40E_PFINT_DYN_CTLN(i
- 1), 0);
3076 for (i
= 0; i
< vsi
->num_q_vectors
; i
++)
3077 synchronize_irq(pf
->msix_entries
[i
+ base
].vector
);
3079 /* Legacy and MSI mode - this stops all interrupt handling */
3080 wr32(hw
, I40E_PFINT_ICR0_ENA
, 0);
3081 wr32(hw
, I40E_PFINT_DYN_CTL0
, 0);
3083 synchronize_irq(pf
->pdev
->irq
);
3088 * i40e_vsi_enable_irq - Enable IRQ for the given VSI
3089 * @vsi: the VSI being configured
3091 static int i40e_vsi_enable_irq(struct i40e_vsi
*vsi
)
3093 struct i40e_pf
*pf
= vsi
->back
;
3096 if (pf
->flags
& I40E_FLAG_MSIX_ENABLED
) {
3097 for (i
= vsi
->base_vector
;
3098 i
< (vsi
->num_q_vectors
+ vsi
->base_vector
); i
++)
3099 i40e_irq_dynamic_enable(vsi
, i
);
3101 i40e_irq_dynamic_enable_icr0(pf
);
3104 i40e_flush(&pf
->hw
);
3109 * i40e_stop_misc_vector - Stop the vector that handles non-queue events
3110 * @pf: board private structure
3112 static void i40e_stop_misc_vector(struct i40e_pf
*pf
)
3115 wr32(&pf
->hw
, I40E_PFINT_ICR0_ENA
, 0);
3116 i40e_flush(&pf
->hw
);
3120 * i40e_intr - MSI/Legacy and non-queue interrupt handler
3121 * @irq: interrupt number
3122 * @data: pointer to a q_vector
3124 * This is the handler used for all MSI/Legacy interrupts, and deals
3125 * with both queue and non-queue interrupts. This is also used in
3126 * MSIX mode to handle the non-queue interrupts.
3128 static irqreturn_t
i40e_intr(int irq
, void *data
)
3130 struct i40e_pf
*pf
= (struct i40e_pf
*)data
;
3131 struct i40e_hw
*hw
= &pf
->hw
;
3132 irqreturn_t ret
= IRQ_NONE
;
3133 u32 icr0
, icr0_remaining
;
3136 icr0
= rd32(hw
, I40E_PFINT_ICR0
);
3137 ena_mask
= rd32(hw
, I40E_PFINT_ICR0_ENA
);
3139 /* if sharing a legacy IRQ, we might get called w/o an intr pending */
3140 if ((icr0
& I40E_PFINT_ICR0_INTEVENT_MASK
) == 0)
3143 /* if interrupt but no bits showing, must be SWINT */
3144 if (((icr0
& ~I40E_PFINT_ICR0_INTEVENT_MASK
) == 0) ||
3145 (icr0
& I40E_PFINT_ICR0_SWINT_MASK
))
3148 /* only q0 is used in MSI/Legacy mode, and none are used in MSIX */
3149 if (icr0
& I40E_PFINT_ICR0_QUEUE_0_MASK
) {
3151 /* temporarily disable queue cause for NAPI processing */
3152 u32 qval
= rd32(hw
, I40E_QINT_RQCTL(0));
3153 qval
&= ~I40E_QINT_RQCTL_CAUSE_ENA_MASK
;
3154 wr32(hw
, I40E_QINT_RQCTL(0), qval
);
3156 qval
= rd32(hw
, I40E_QINT_TQCTL(0));
3157 qval
&= ~I40E_QINT_TQCTL_CAUSE_ENA_MASK
;
3158 wr32(hw
, I40E_QINT_TQCTL(0), qval
);
3160 if (!test_bit(__I40E_DOWN
, &pf
->state
))
3161 napi_schedule(&pf
->vsi
[pf
->lan_vsi
]->q_vectors
[0]->napi
);
3164 if (icr0
& I40E_PFINT_ICR0_ADMINQ_MASK
) {
3165 ena_mask
&= ~I40E_PFINT_ICR0_ENA_ADMINQ_MASK
;
3166 set_bit(__I40E_ADMINQ_EVENT_PENDING
, &pf
->state
);
3169 if (icr0
& I40E_PFINT_ICR0_MAL_DETECT_MASK
) {
3170 ena_mask
&= ~I40E_PFINT_ICR0_ENA_MAL_DETECT_MASK
;
3171 set_bit(__I40E_MDD_EVENT_PENDING
, &pf
->state
);
3174 if (icr0
& I40E_PFINT_ICR0_VFLR_MASK
) {
3175 ena_mask
&= ~I40E_PFINT_ICR0_ENA_VFLR_MASK
;
3176 set_bit(__I40E_VFLR_EVENT_PENDING
, &pf
->state
);
3179 if (icr0
& I40E_PFINT_ICR0_GRST_MASK
) {
3180 if (!test_bit(__I40E_RESET_RECOVERY_PENDING
, &pf
->state
))
3181 set_bit(__I40E_RESET_INTR_RECEIVED
, &pf
->state
);
3182 ena_mask
&= ~I40E_PFINT_ICR0_ENA_GRST_MASK
;
3183 val
= rd32(hw
, I40E_GLGEN_RSTAT
);
3184 val
= (val
& I40E_GLGEN_RSTAT_RESET_TYPE_MASK
)
3185 >> I40E_GLGEN_RSTAT_RESET_TYPE_SHIFT
;
3186 if (val
== I40E_RESET_CORER
) {
3188 } else if (val
== I40E_RESET_GLOBR
) {
3190 } else if (val
== I40E_RESET_EMPR
) {
3192 set_bit(__I40E_EMP_RESET_INTR_RECEIVED
, &pf
->state
);
3196 if (icr0
& I40E_PFINT_ICR0_HMC_ERR_MASK
) {
3197 icr0
&= ~I40E_PFINT_ICR0_HMC_ERR_MASK
;
3198 dev_info(&pf
->pdev
->dev
, "HMC error interrupt\n");
3201 if (icr0
& I40E_PFINT_ICR0_TIMESYNC_MASK
) {
3202 u32 prttsyn_stat
= rd32(hw
, I40E_PRTTSYN_STAT_0
);
3204 if (prttsyn_stat
& I40E_PRTTSYN_STAT_0_TXTIME_MASK
) {
3205 icr0
&= ~I40E_PFINT_ICR0_ENA_TIMESYNC_MASK
;
3206 i40e_ptp_tx_hwtstamp(pf
);
3210 /* If a critical error is pending we have no choice but to reset the
3212 * Report and mask out any remaining unexpected interrupts.
3214 icr0_remaining
= icr0
& ena_mask
;
3215 if (icr0_remaining
) {
3216 dev_info(&pf
->pdev
->dev
, "unhandled interrupt icr0=0x%08x\n",
3218 if ((icr0_remaining
& I40E_PFINT_ICR0_PE_CRITERR_MASK
) ||
3219 (icr0_remaining
& I40E_PFINT_ICR0_PCI_EXCEPTION_MASK
) ||
3220 (icr0_remaining
& I40E_PFINT_ICR0_ECC_ERR_MASK
)) {
3221 dev_info(&pf
->pdev
->dev
, "device will be reset\n");
3222 set_bit(__I40E_PF_RESET_REQUESTED
, &pf
->state
);
3223 i40e_service_event_schedule(pf
);
3225 ena_mask
&= ~icr0_remaining
;
3230 /* re-enable interrupt causes */
3231 wr32(hw
, I40E_PFINT_ICR0_ENA
, ena_mask
);
3232 if (!test_bit(__I40E_DOWN
, &pf
->state
)) {
3233 i40e_service_event_schedule(pf
);
3234 i40e_irq_dynamic_enable_icr0(pf
);
3241 * i40e_clean_fdir_tx_irq - Reclaim resources after transmit completes
3242 * @tx_ring: tx ring to clean
3243 * @budget: how many cleans we're allowed
3245 * Returns true if there's any budget left (e.g. the clean is finished)
3247 static bool i40e_clean_fdir_tx_irq(struct i40e_ring
*tx_ring
, int budget
)
3249 struct i40e_vsi
*vsi
= tx_ring
->vsi
;
3250 u16 i
= tx_ring
->next_to_clean
;
3251 struct i40e_tx_buffer
*tx_buf
;
3252 struct i40e_tx_desc
*tx_desc
;
3254 tx_buf
= &tx_ring
->tx_bi
[i
];
3255 tx_desc
= I40E_TX_DESC(tx_ring
, i
);
3256 i
-= tx_ring
->count
;
3259 struct i40e_tx_desc
*eop_desc
= tx_buf
->next_to_watch
;
3261 /* if next_to_watch is not set then there is no work pending */
3265 /* prevent any other reads prior to eop_desc */
3266 read_barrier_depends();
3268 /* if the descriptor isn't done, no work yet to do */
3269 if (!(eop_desc
->cmd_type_offset_bsz
&
3270 cpu_to_le64(I40E_TX_DESC_DTYPE_DESC_DONE
)))
3273 /* clear next_to_watch to prevent false hangs */
3274 tx_buf
->next_to_watch
= NULL
;
3276 tx_desc
->buffer_addr
= 0;
3277 tx_desc
->cmd_type_offset_bsz
= 0;
3278 /* move past filter desc */
3283 i
-= tx_ring
->count
;
3284 tx_buf
= tx_ring
->tx_bi
;
3285 tx_desc
= I40E_TX_DESC(tx_ring
, 0);
3287 /* unmap skb header data */
3288 dma_unmap_single(tx_ring
->dev
,
3289 dma_unmap_addr(tx_buf
, dma
),
3290 dma_unmap_len(tx_buf
, len
),
3292 if (tx_buf
->tx_flags
& I40E_TX_FLAGS_FD_SB
)
3293 kfree(tx_buf
->raw_buf
);
3295 tx_buf
->raw_buf
= NULL
;
3296 tx_buf
->tx_flags
= 0;
3297 tx_buf
->next_to_watch
= NULL
;
3298 dma_unmap_len_set(tx_buf
, len
, 0);
3299 tx_desc
->buffer_addr
= 0;
3300 tx_desc
->cmd_type_offset_bsz
= 0;
3302 /* move us past the eop_desc for start of next FD desc */
3307 i
-= tx_ring
->count
;
3308 tx_buf
= tx_ring
->tx_bi
;
3309 tx_desc
= I40E_TX_DESC(tx_ring
, 0);
3312 /* update budget accounting */
3314 } while (likely(budget
));
3316 i
+= tx_ring
->count
;
3317 tx_ring
->next_to_clean
= i
;
3319 if (vsi
->back
->flags
& I40E_FLAG_MSIX_ENABLED
) {
3320 i40e_irq_dynamic_enable(vsi
,
3321 tx_ring
->q_vector
->v_idx
+ vsi
->base_vector
);
3327 * i40e_fdir_clean_ring - Interrupt Handler for FDIR SB ring
3328 * @irq: interrupt number
3329 * @data: pointer to a q_vector
3331 static irqreturn_t
i40e_fdir_clean_ring(int irq
, void *data
)
3333 struct i40e_q_vector
*q_vector
= data
;
3334 struct i40e_vsi
*vsi
;
3336 if (!q_vector
->tx
.ring
)
3339 vsi
= q_vector
->tx
.ring
->vsi
;
3340 i40e_clean_fdir_tx_irq(q_vector
->tx
.ring
, vsi
->work_limit
);
3346 * i40e_map_vector_to_qp - Assigns the queue pair to the vector
3347 * @vsi: the VSI being configured
3348 * @v_idx: vector index
3349 * @qp_idx: queue pair index
3351 static void map_vector_to_qp(struct i40e_vsi
*vsi
, int v_idx
, int qp_idx
)
3353 struct i40e_q_vector
*q_vector
= vsi
->q_vectors
[v_idx
];
3354 struct i40e_ring
*tx_ring
= vsi
->tx_rings
[qp_idx
];
3355 struct i40e_ring
*rx_ring
= vsi
->rx_rings
[qp_idx
];
3357 tx_ring
->q_vector
= q_vector
;
3358 tx_ring
->next
= q_vector
->tx
.ring
;
3359 q_vector
->tx
.ring
= tx_ring
;
3360 q_vector
->tx
.count
++;
3362 rx_ring
->q_vector
= q_vector
;
3363 rx_ring
->next
= q_vector
->rx
.ring
;
3364 q_vector
->rx
.ring
= rx_ring
;
3365 q_vector
->rx
.count
++;
3369 * i40e_vsi_map_rings_to_vectors - Maps descriptor rings to vectors
3370 * @vsi: the VSI being configured
3372 * This function maps descriptor rings to the queue-specific vectors
3373 * we were allotted through the MSI-X enabling code. Ideally, we'd have
3374 * one vector per queue pair, but on a constrained vector budget, we
3375 * group the queue pairs as "efficiently" as possible.
3377 static void i40e_vsi_map_rings_to_vectors(struct i40e_vsi
*vsi
)
3379 int qp_remaining
= vsi
->num_queue_pairs
;
3380 int q_vectors
= vsi
->num_q_vectors
;
3385 /* If we don't have enough vectors for a 1-to-1 mapping, we'll have to
3386 * group them so there are multiple queues per vector.
3387 * It is also important to go through all the vectors available to be
3388 * sure that if we don't use all the vectors, that the remaining vectors
3389 * are cleared. This is especially important when decreasing the
3390 * number of queues in use.
3392 for (; v_start
< q_vectors
; v_start
++) {
3393 struct i40e_q_vector
*q_vector
= vsi
->q_vectors
[v_start
];
3395 num_ringpairs
= DIV_ROUND_UP(qp_remaining
, q_vectors
- v_start
);
3397 q_vector
->num_ringpairs
= num_ringpairs
;
3399 q_vector
->rx
.count
= 0;
3400 q_vector
->tx
.count
= 0;
3401 q_vector
->rx
.ring
= NULL
;
3402 q_vector
->tx
.ring
= NULL
;
3404 while (num_ringpairs
--) {
3405 map_vector_to_qp(vsi
, v_start
, qp_idx
);
3413 * i40e_vsi_request_irq - Request IRQ from the OS
3414 * @vsi: the VSI being configured
3415 * @basename: name for the vector
3417 static int i40e_vsi_request_irq(struct i40e_vsi
*vsi
, char *basename
)
3419 struct i40e_pf
*pf
= vsi
->back
;
3422 if (pf
->flags
& I40E_FLAG_MSIX_ENABLED
)
3423 err
= i40e_vsi_request_irq_msix(vsi
, basename
);
3424 else if (pf
->flags
& I40E_FLAG_MSI_ENABLED
)
3425 err
= request_irq(pf
->pdev
->irq
, i40e_intr
, 0,
3428 err
= request_irq(pf
->pdev
->irq
, i40e_intr
, IRQF_SHARED
,
3432 dev_info(&pf
->pdev
->dev
, "request_irq failed, Error %d\n", err
);
3437 #ifdef CONFIG_NET_POLL_CONTROLLER
3439 * i40e_netpoll - A Polling 'interrupt'handler
3440 * @netdev: network interface device structure
3442 * This is used by netconsole to send skbs without having to re-enable
3443 * interrupts. It's not called while the normal interrupt routine is executing.
3446 void i40e_netpoll(struct net_device
*netdev
)
3448 static void i40e_netpoll(struct net_device
*netdev
)
3451 struct i40e_netdev_priv
*np
= netdev_priv(netdev
);
3452 struct i40e_vsi
*vsi
= np
->vsi
;
3453 struct i40e_pf
*pf
= vsi
->back
;
3456 /* if interface is down do nothing */
3457 if (test_bit(__I40E_DOWN
, &vsi
->state
))
3460 pf
->flags
|= I40E_FLAG_IN_NETPOLL
;
3461 if (pf
->flags
& I40E_FLAG_MSIX_ENABLED
) {
3462 for (i
= 0; i
< vsi
->num_q_vectors
; i
++)
3463 i40e_msix_clean_rings(0, vsi
->q_vectors
[i
]);
3465 i40e_intr(pf
->pdev
->irq
, netdev
);
3467 pf
->flags
&= ~I40E_FLAG_IN_NETPOLL
;
3472 * i40e_pf_txq_wait - Wait for a PF's Tx queue to be enabled or disabled
3473 * @pf: the PF being configured
3474 * @pf_q: the PF queue
3475 * @enable: enable or disable state of the queue
3477 * This routine will wait for the given Tx queue of the PF to reach the
3478 * enabled or disabled state.
3479 * Returns -ETIMEDOUT in case of failing to reach the requested state after
3480 * multiple retries; else will return 0 in case of success.
3482 static int i40e_pf_txq_wait(struct i40e_pf
*pf
, int pf_q
, bool enable
)
3487 for (i
= 0; i
< I40E_QUEUE_WAIT_RETRY_LIMIT
; i
++) {
3488 tx_reg
= rd32(&pf
->hw
, I40E_QTX_ENA(pf_q
));
3489 if (enable
== !!(tx_reg
& I40E_QTX_ENA_QENA_STAT_MASK
))
3492 usleep_range(10, 20);
3494 if (i
>= I40E_QUEUE_WAIT_RETRY_LIMIT
)
3501 * i40e_vsi_control_tx - Start or stop a VSI's rings
3502 * @vsi: the VSI being configured
3503 * @enable: start or stop the rings
3505 static int i40e_vsi_control_tx(struct i40e_vsi
*vsi
, bool enable
)
3507 struct i40e_pf
*pf
= vsi
->back
;
3508 struct i40e_hw
*hw
= &pf
->hw
;
3509 int i
, j
, pf_q
, ret
= 0;
3512 pf_q
= vsi
->base_queue
;
3513 for (i
= 0; i
< vsi
->num_queue_pairs
; i
++, pf_q
++) {
3515 /* warn the TX unit of coming changes */
3516 i40e_pre_tx_queue_cfg(&pf
->hw
, pf_q
, enable
);
3518 usleep_range(10, 20);
3520 for (j
= 0; j
< 50; j
++) {
3521 tx_reg
= rd32(hw
, I40E_QTX_ENA(pf_q
));
3522 if (((tx_reg
>> I40E_QTX_ENA_QENA_REQ_SHIFT
) & 1) ==
3523 ((tx_reg
>> I40E_QTX_ENA_QENA_STAT_SHIFT
) & 1))
3525 usleep_range(1000, 2000);
3527 /* Skip if the queue is already in the requested state */
3528 if (enable
== !!(tx_reg
& I40E_QTX_ENA_QENA_STAT_MASK
))
3531 /* turn on/off the queue */
3533 wr32(hw
, I40E_QTX_HEAD(pf_q
), 0);
3534 tx_reg
|= I40E_QTX_ENA_QENA_REQ_MASK
;
3536 tx_reg
&= ~I40E_QTX_ENA_QENA_REQ_MASK
;
3539 wr32(hw
, I40E_QTX_ENA(pf_q
), tx_reg
);
3540 /* No waiting for the Tx queue to disable */
3541 if (!enable
&& test_bit(__I40E_PORT_TX_SUSPENDED
, &pf
->state
))
3544 /* wait for the change to finish */
3545 ret
= i40e_pf_txq_wait(pf
, pf_q
, enable
);
3547 dev_info(&pf
->pdev
->dev
,
3548 "%s: VSI seid %d Tx ring %d %sable timeout\n",
3549 __func__
, vsi
->seid
, pf_q
,
3550 (enable
? "en" : "dis"));
3555 if (hw
->revision_id
== 0)
3561 * i40e_pf_rxq_wait - Wait for a PF's Rx queue to be enabled or disabled
3562 * @pf: the PF being configured
3563 * @pf_q: the PF queue
3564 * @enable: enable or disable state of the queue
3566 * This routine will wait for the given Rx queue of the PF to reach the
3567 * enabled or disabled state.
3568 * Returns -ETIMEDOUT in case of failing to reach the requested state after
3569 * multiple retries; else will return 0 in case of success.
3571 static int i40e_pf_rxq_wait(struct i40e_pf
*pf
, int pf_q
, bool enable
)
3576 for (i
= 0; i
< I40E_QUEUE_WAIT_RETRY_LIMIT
; i
++) {
3577 rx_reg
= rd32(&pf
->hw
, I40E_QRX_ENA(pf_q
));
3578 if (enable
== !!(rx_reg
& I40E_QRX_ENA_QENA_STAT_MASK
))
3581 usleep_range(10, 20);
3583 if (i
>= I40E_QUEUE_WAIT_RETRY_LIMIT
)
3590 * i40e_vsi_control_rx - Start or stop a VSI's rings
3591 * @vsi: the VSI being configured
3592 * @enable: start or stop the rings
3594 static int i40e_vsi_control_rx(struct i40e_vsi
*vsi
, bool enable
)
3596 struct i40e_pf
*pf
= vsi
->back
;
3597 struct i40e_hw
*hw
= &pf
->hw
;
3598 int i
, j
, pf_q
, ret
= 0;
3601 pf_q
= vsi
->base_queue
;
3602 for (i
= 0; i
< vsi
->num_queue_pairs
; i
++, pf_q
++) {
3603 for (j
= 0; j
< 50; j
++) {
3604 rx_reg
= rd32(hw
, I40E_QRX_ENA(pf_q
));
3605 if (((rx_reg
>> I40E_QRX_ENA_QENA_REQ_SHIFT
) & 1) ==
3606 ((rx_reg
>> I40E_QRX_ENA_QENA_STAT_SHIFT
) & 1))
3608 usleep_range(1000, 2000);
3611 /* Skip if the queue is already in the requested state */
3612 if (enable
== !!(rx_reg
& I40E_QRX_ENA_QENA_STAT_MASK
))
3615 /* turn on/off the queue */
3617 rx_reg
|= I40E_QRX_ENA_QENA_REQ_MASK
;
3619 rx_reg
&= ~I40E_QRX_ENA_QENA_REQ_MASK
;
3620 wr32(hw
, I40E_QRX_ENA(pf_q
), rx_reg
);
3622 /* wait for the change to finish */
3623 ret
= i40e_pf_rxq_wait(pf
, pf_q
, enable
);
3625 dev_info(&pf
->pdev
->dev
,
3626 "%s: VSI seid %d Rx ring %d %sable timeout\n",
3627 __func__
, vsi
->seid
, pf_q
,
3628 (enable
? "en" : "dis"));
3637 * i40e_vsi_control_rings - Start or stop a VSI's rings
3638 * @vsi: the VSI being configured
3639 * @enable: start or stop the rings
3641 int i40e_vsi_control_rings(struct i40e_vsi
*vsi
, bool request
)
3645 /* do rx first for enable and last for disable */
3647 ret
= i40e_vsi_control_rx(vsi
, request
);
3650 ret
= i40e_vsi_control_tx(vsi
, request
);
3652 /* Ignore return value, we need to shutdown whatever we can */
3653 i40e_vsi_control_tx(vsi
, request
);
3654 i40e_vsi_control_rx(vsi
, request
);
3661 * i40e_vsi_free_irq - Free the irq association with the OS
3662 * @vsi: the VSI being configured
3664 static void i40e_vsi_free_irq(struct i40e_vsi
*vsi
)
3666 struct i40e_pf
*pf
= vsi
->back
;
3667 struct i40e_hw
*hw
= &pf
->hw
;
3668 int base
= vsi
->base_vector
;
3672 if (pf
->flags
& I40E_FLAG_MSIX_ENABLED
) {
3673 if (!vsi
->q_vectors
)
3676 if (!vsi
->irqs_ready
)
3679 vsi
->irqs_ready
= false;
3680 for (i
= 0; i
< vsi
->num_q_vectors
; i
++) {
3681 u16 vector
= i
+ base
;
3683 /* free only the irqs that were actually requested */
3684 if (!vsi
->q_vectors
[i
] ||
3685 !vsi
->q_vectors
[i
]->num_ringpairs
)
3688 /* clear the affinity_mask in the IRQ descriptor */
3689 irq_set_affinity_hint(pf
->msix_entries
[vector
].vector
,
3691 free_irq(pf
->msix_entries
[vector
].vector
,
3694 /* Tear down the interrupt queue link list
3696 * We know that they come in pairs and always
3697 * the Rx first, then the Tx. To clear the
3698 * link list, stick the EOL value into the
3699 * next_q field of the registers.
3701 val
= rd32(hw
, I40E_PFINT_LNKLSTN(vector
- 1));
3702 qp
= (val
& I40E_PFINT_LNKLSTN_FIRSTQ_INDX_MASK
)
3703 >> I40E_PFINT_LNKLSTN_FIRSTQ_INDX_SHIFT
;
3704 val
|= I40E_QUEUE_END_OF_LIST
3705 << I40E_PFINT_LNKLSTN_FIRSTQ_INDX_SHIFT
;
3706 wr32(hw
, I40E_PFINT_LNKLSTN(vector
- 1), val
);
3708 while (qp
!= I40E_QUEUE_END_OF_LIST
) {
3711 val
= rd32(hw
, I40E_QINT_RQCTL(qp
));
3713 val
&= ~(I40E_QINT_RQCTL_MSIX_INDX_MASK
|
3714 I40E_QINT_RQCTL_MSIX0_INDX_MASK
|
3715 I40E_QINT_RQCTL_CAUSE_ENA_MASK
|
3716 I40E_QINT_RQCTL_INTEVENT_MASK
);
3718 val
|= (I40E_QINT_RQCTL_ITR_INDX_MASK
|
3719 I40E_QINT_RQCTL_NEXTQ_INDX_MASK
);
3721 wr32(hw
, I40E_QINT_RQCTL(qp
), val
);
3723 val
= rd32(hw
, I40E_QINT_TQCTL(qp
));
3725 next
= (val
& I40E_QINT_TQCTL_NEXTQ_INDX_MASK
)
3726 >> I40E_QINT_TQCTL_NEXTQ_INDX_SHIFT
;
3728 val
&= ~(I40E_QINT_TQCTL_MSIX_INDX_MASK
|
3729 I40E_QINT_TQCTL_MSIX0_INDX_MASK
|
3730 I40E_QINT_TQCTL_CAUSE_ENA_MASK
|
3731 I40E_QINT_TQCTL_INTEVENT_MASK
);
3733 val
|= (I40E_QINT_TQCTL_ITR_INDX_MASK
|
3734 I40E_QINT_TQCTL_NEXTQ_INDX_MASK
);
3736 wr32(hw
, I40E_QINT_TQCTL(qp
), val
);
3741 free_irq(pf
->pdev
->irq
, pf
);
3743 val
= rd32(hw
, I40E_PFINT_LNKLST0
);
3744 qp
= (val
& I40E_PFINT_LNKLSTN_FIRSTQ_INDX_MASK
)
3745 >> I40E_PFINT_LNKLSTN_FIRSTQ_INDX_SHIFT
;
3746 val
|= I40E_QUEUE_END_OF_LIST
3747 << I40E_PFINT_LNKLST0_FIRSTQ_INDX_SHIFT
;
3748 wr32(hw
, I40E_PFINT_LNKLST0
, val
);
3750 val
= rd32(hw
, I40E_QINT_RQCTL(qp
));
3751 val
&= ~(I40E_QINT_RQCTL_MSIX_INDX_MASK
|
3752 I40E_QINT_RQCTL_MSIX0_INDX_MASK
|
3753 I40E_QINT_RQCTL_CAUSE_ENA_MASK
|
3754 I40E_QINT_RQCTL_INTEVENT_MASK
);
3756 val
|= (I40E_QINT_RQCTL_ITR_INDX_MASK
|
3757 I40E_QINT_RQCTL_NEXTQ_INDX_MASK
);
3759 wr32(hw
, I40E_QINT_RQCTL(qp
), val
);
3761 val
= rd32(hw
, I40E_QINT_TQCTL(qp
));
3763 val
&= ~(I40E_QINT_TQCTL_MSIX_INDX_MASK
|
3764 I40E_QINT_TQCTL_MSIX0_INDX_MASK
|
3765 I40E_QINT_TQCTL_CAUSE_ENA_MASK
|
3766 I40E_QINT_TQCTL_INTEVENT_MASK
);
3768 val
|= (I40E_QINT_TQCTL_ITR_INDX_MASK
|
3769 I40E_QINT_TQCTL_NEXTQ_INDX_MASK
);
3771 wr32(hw
, I40E_QINT_TQCTL(qp
), val
);
3776 * i40e_free_q_vector - Free memory allocated for specific interrupt vector
3777 * @vsi: the VSI being configured
3778 * @v_idx: Index of vector to be freed
3780 * This function frees the memory allocated to the q_vector. In addition if
3781 * NAPI is enabled it will delete any references to the NAPI struct prior
3782 * to freeing the q_vector.
3784 static void i40e_free_q_vector(struct i40e_vsi
*vsi
, int v_idx
)
3786 struct i40e_q_vector
*q_vector
= vsi
->q_vectors
[v_idx
];
3787 struct i40e_ring
*ring
;
3792 /* disassociate q_vector from rings */
3793 i40e_for_each_ring(ring
, q_vector
->tx
)
3794 ring
->q_vector
= NULL
;
3796 i40e_for_each_ring(ring
, q_vector
->rx
)
3797 ring
->q_vector
= NULL
;
3799 /* only VSI w/ an associated netdev is set up w/ NAPI */
3801 netif_napi_del(&q_vector
->napi
);
3803 vsi
->q_vectors
[v_idx
] = NULL
;
3805 kfree_rcu(q_vector
, rcu
);
3809 * i40e_vsi_free_q_vectors - Free memory allocated for interrupt vectors
3810 * @vsi: the VSI being un-configured
3812 * This frees the memory allocated to the q_vectors and
3813 * deletes references to the NAPI struct.
3815 static void i40e_vsi_free_q_vectors(struct i40e_vsi
*vsi
)
3819 for (v_idx
= 0; v_idx
< vsi
->num_q_vectors
; v_idx
++)
3820 i40e_free_q_vector(vsi
, v_idx
);
3824 * i40e_reset_interrupt_capability - Disable interrupt setup in OS
3825 * @pf: board private structure
3827 static void i40e_reset_interrupt_capability(struct i40e_pf
*pf
)
3829 /* If we're in Legacy mode, the interrupt was cleaned in vsi_close */
3830 if (pf
->flags
& I40E_FLAG_MSIX_ENABLED
) {
3831 pci_disable_msix(pf
->pdev
);
3832 kfree(pf
->msix_entries
);
3833 pf
->msix_entries
= NULL
;
3834 kfree(pf
->irq_pile
);
3835 pf
->irq_pile
= NULL
;
3836 } else if (pf
->flags
& I40E_FLAG_MSI_ENABLED
) {
3837 pci_disable_msi(pf
->pdev
);
3839 pf
->flags
&= ~(I40E_FLAG_MSIX_ENABLED
| I40E_FLAG_MSI_ENABLED
);
3843 * i40e_clear_interrupt_scheme - Clear the current interrupt scheme settings
3844 * @pf: board private structure
3846 * We go through and clear interrupt specific resources and reset the structure
3847 * to pre-load conditions
3849 static void i40e_clear_interrupt_scheme(struct i40e_pf
*pf
)
3853 i40e_stop_misc_vector(pf
);
3854 if (pf
->flags
& I40E_FLAG_MSIX_ENABLED
) {
3855 synchronize_irq(pf
->msix_entries
[0].vector
);
3856 free_irq(pf
->msix_entries
[0].vector
, pf
);
3859 i40e_put_lump(pf
->irq_pile
, 0, I40E_PILE_VALID_BIT
-1);
3860 for (i
= 0; i
< pf
->num_alloc_vsi
; i
++)
3862 i40e_vsi_free_q_vectors(pf
->vsi
[i
]);
3863 i40e_reset_interrupt_capability(pf
);
3867 * i40e_napi_enable_all - Enable NAPI for all q_vectors in the VSI
3868 * @vsi: the VSI being configured
3870 static void i40e_napi_enable_all(struct i40e_vsi
*vsi
)
3877 for (q_idx
= 0; q_idx
< vsi
->num_q_vectors
; q_idx
++)
3878 napi_enable(&vsi
->q_vectors
[q_idx
]->napi
);
3882 * i40e_napi_disable_all - Disable NAPI for all q_vectors in the VSI
3883 * @vsi: the VSI being configured
3885 static void i40e_napi_disable_all(struct i40e_vsi
*vsi
)
3892 for (q_idx
= 0; q_idx
< vsi
->num_q_vectors
; q_idx
++)
3893 napi_disable(&vsi
->q_vectors
[q_idx
]->napi
);
3897 * i40e_vsi_close - Shut down a VSI
3898 * @vsi: the vsi to be quelled
3900 static void i40e_vsi_close(struct i40e_vsi
*vsi
)
3902 if (!test_and_set_bit(__I40E_DOWN
, &vsi
->state
))
3904 i40e_vsi_free_irq(vsi
);
3905 i40e_vsi_free_tx_resources(vsi
);
3906 i40e_vsi_free_rx_resources(vsi
);
3910 * i40e_quiesce_vsi - Pause a given VSI
3911 * @vsi: the VSI being paused
3913 static void i40e_quiesce_vsi(struct i40e_vsi
*vsi
)
3915 if (test_bit(__I40E_DOWN
, &vsi
->state
))
3918 /* No need to disable FCoE VSI when Tx suspended */
3919 if ((test_bit(__I40E_PORT_TX_SUSPENDED
, &vsi
->back
->state
)) &&
3920 vsi
->type
== I40E_VSI_FCOE
) {
3921 dev_dbg(&vsi
->back
->pdev
->dev
,
3922 "%s: VSI seid %d skipping FCoE VSI disable\n",
3923 __func__
, vsi
->seid
);
3927 set_bit(__I40E_NEEDS_RESTART
, &vsi
->state
);
3928 if (vsi
->netdev
&& netif_running(vsi
->netdev
)) {
3929 vsi
->netdev
->netdev_ops
->ndo_stop(vsi
->netdev
);
3931 i40e_vsi_close(vsi
);
3936 * i40e_unquiesce_vsi - Resume a given VSI
3937 * @vsi: the VSI being resumed
3939 static void i40e_unquiesce_vsi(struct i40e_vsi
*vsi
)
3941 if (!test_bit(__I40E_NEEDS_RESTART
, &vsi
->state
))
3944 clear_bit(__I40E_NEEDS_RESTART
, &vsi
->state
);
3945 if (vsi
->netdev
&& netif_running(vsi
->netdev
))
3946 vsi
->netdev
->netdev_ops
->ndo_open(vsi
->netdev
);
3948 i40e_vsi_open(vsi
); /* this clears the DOWN bit */
3952 * i40e_pf_quiesce_all_vsi - Pause all VSIs on a PF
3955 static void i40e_pf_quiesce_all_vsi(struct i40e_pf
*pf
)
3959 for (v
= 0; v
< pf
->num_alloc_vsi
; v
++) {
3961 i40e_quiesce_vsi(pf
->vsi
[v
]);
3966 * i40e_pf_unquiesce_all_vsi - Resume all VSIs on a PF
3969 static void i40e_pf_unquiesce_all_vsi(struct i40e_pf
*pf
)
3973 for (v
= 0; v
< pf
->num_alloc_vsi
; v
++) {
3975 i40e_unquiesce_vsi(pf
->vsi
[v
]);
3979 #ifdef CONFIG_I40E_DCB
3981 * i40e_vsi_wait_txq_disabled - Wait for VSI's queues to be disabled
3982 * @vsi: the VSI being configured
3984 * This function waits for the given VSI's Tx queues to be disabled.
3986 static int i40e_vsi_wait_txq_disabled(struct i40e_vsi
*vsi
)
3988 struct i40e_pf
*pf
= vsi
->back
;
3991 pf_q
= vsi
->base_queue
;
3992 for (i
= 0; i
< vsi
->num_queue_pairs
; i
++, pf_q
++) {
3993 /* Check and wait for the disable status of the queue */
3994 ret
= i40e_pf_txq_wait(pf
, pf_q
, false);
3996 dev_info(&pf
->pdev
->dev
,
3997 "%s: VSI seid %d Tx ring %d disable timeout\n",
3998 __func__
, vsi
->seid
, pf_q
);
4007 * i40e_pf_wait_txq_disabled - Wait for all queues of PF VSIs to be disabled
4010 * This function waits for the Tx queues to be in disabled state for all the
4011 * VSIs that are managed by this PF.
4013 static int i40e_pf_wait_txq_disabled(struct i40e_pf
*pf
)
4017 for (v
= 0; v
< pf
->hw
.func_caps
.num_vsis
; v
++) {
4018 /* No need to wait for FCoE VSI queues */
4019 if (pf
->vsi
[v
] && pf
->vsi
[v
]->type
!= I40E_VSI_FCOE
) {
4020 ret
= i40e_vsi_wait_txq_disabled(pf
->vsi
[v
]);
4031 * i40e_get_iscsi_tc_map - Return TC map for iSCSI APP
4032 * @pf: pointer to PF
4034 * Get TC map for ISCSI PF type that will include iSCSI TC
4037 static u8
i40e_get_iscsi_tc_map(struct i40e_pf
*pf
)
4039 struct i40e_dcb_app_priority_table app
;
4040 struct i40e_hw
*hw
= &pf
->hw
;
4041 u8 enabled_tc
= 1; /* TC0 is always enabled */
4043 /* Get the iSCSI APP TLV */
4044 struct i40e_dcbx_config
*dcbcfg
= &hw
->local_dcbx_config
;
4046 for (i
= 0; i
< dcbcfg
->numapps
; i
++) {
4047 app
= dcbcfg
->app
[i
];
4048 if (app
.selector
== I40E_APP_SEL_TCPIP
&&
4049 app
.protocolid
== I40E_APP_PROTOID_ISCSI
) {
4050 tc
= dcbcfg
->etscfg
.prioritytable
[app
.priority
];
4051 enabled_tc
|= (1 << tc
);
4060 * i40e_dcb_get_num_tc - Get the number of TCs from DCBx config
4061 * @dcbcfg: the corresponding DCBx configuration structure
4063 * Return the number of TCs from given DCBx configuration
4065 static u8
i40e_dcb_get_num_tc(struct i40e_dcbx_config
*dcbcfg
)
4070 /* Scan the ETS Config Priority Table to find
4071 * traffic class enabled for a given priority
4072 * and use the traffic class index to get the
4073 * number of traffic classes enabled
4075 for (i
= 0; i
< I40E_MAX_USER_PRIORITY
; i
++) {
4076 if (dcbcfg
->etscfg
.prioritytable
[i
] > num_tc
)
4077 num_tc
= dcbcfg
->etscfg
.prioritytable
[i
];
4080 /* Traffic class index starts from zero so
4081 * increment to return the actual count
4087 * i40e_dcb_get_enabled_tc - Get enabled traffic classes
4088 * @dcbcfg: the corresponding DCBx configuration structure
4090 * Query the current DCB configuration and return the number of
4091 * traffic classes enabled from the given DCBX config
4093 static u8
i40e_dcb_get_enabled_tc(struct i40e_dcbx_config
*dcbcfg
)
4095 u8 num_tc
= i40e_dcb_get_num_tc(dcbcfg
);
4099 for (i
= 0; i
< num_tc
; i
++)
4100 enabled_tc
|= 1 << i
;
4106 * i40e_pf_get_num_tc - Get enabled traffic classes for PF
4107 * @pf: PF being queried
4109 * Return number of traffic classes enabled for the given PF
4111 static u8
i40e_pf_get_num_tc(struct i40e_pf
*pf
)
4113 struct i40e_hw
*hw
= &pf
->hw
;
4116 struct i40e_dcbx_config
*dcbcfg
= &hw
->local_dcbx_config
;
4118 /* If DCB is not enabled then always in single TC */
4119 if (!(pf
->flags
& I40E_FLAG_DCB_ENABLED
))
4122 /* SFP mode will be enabled for all TCs on port */
4123 if (!(pf
->flags
& I40E_FLAG_MFP_ENABLED
))
4124 return i40e_dcb_get_num_tc(dcbcfg
);
4126 /* MFP mode return count of enabled TCs for this PF */
4127 if (pf
->hw
.func_caps
.iscsi
)
4128 enabled_tc
= i40e_get_iscsi_tc_map(pf
);
4130 return 1; /* Only TC0 */
4132 /* At least have TC0 */
4133 enabled_tc
= (enabled_tc
? enabled_tc
: 0x1);
4134 for (i
= 0; i
< I40E_MAX_TRAFFIC_CLASS
; i
++) {
4135 if (enabled_tc
& (1 << i
))
4142 * i40e_pf_get_default_tc - Get bitmap for first enabled TC
4143 * @pf: PF being queried
4145 * Return a bitmap for first enabled traffic class for this PF.
4147 static u8
i40e_pf_get_default_tc(struct i40e_pf
*pf
)
4149 u8 enabled_tc
= pf
->hw
.func_caps
.enabled_tcmap
;
4153 return 0x1; /* TC0 */
4155 /* Find the first enabled TC */
4156 for (i
= 0; i
< I40E_MAX_TRAFFIC_CLASS
; i
++) {
4157 if (enabled_tc
& (1 << i
))
4165 * i40e_pf_get_pf_tc_map - Get bitmap for enabled traffic classes
4166 * @pf: PF being queried
4168 * Return a bitmap for enabled traffic classes for this PF.
4170 static u8
i40e_pf_get_tc_map(struct i40e_pf
*pf
)
4172 /* If DCB is not enabled for this PF then just return default TC */
4173 if (!(pf
->flags
& I40E_FLAG_DCB_ENABLED
))
4174 return i40e_pf_get_default_tc(pf
);
4176 /* SFP mode we want PF to be enabled for all TCs */
4177 if (!(pf
->flags
& I40E_FLAG_MFP_ENABLED
))
4178 return i40e_dcb_get_enabled_tc(&pf
->hw
.local_dcbx_config
);
4180 /* MFP enabled and iSCSI PF type */
4181 if (pf
->hw
.func_caps
.iscsi
)
4182 return i40e_get_iscsi_tc_map(pf
);
4184 return i40e_pf_get_default_tc(pf
);
4188 * i40e_vsi_get_bw_info - Query VSI BW Information
4189 * @vsi: the VSI being queried
4191 * Returns 0 on success, negative value on failure
4193 static int i40e_vsi_get_bw_info(struct i40e_vsi
*vsi
)
4195 struct i40e_aqc_query_vsi_ets_sla_config_resp bw_ets_config
= {0};
4196 struct i40e_aqc_query_vsi_bw_config_resp bw_config
= {0};
4197 struct i40e_pf
*pf
= vsi
->back
;
4198 struct i40e_hw
*hw
= &pf
->hw
;
4203 /* Get the VSI level BW configuration */
4204 aq_ret
= i40e_aq_query_vsi_bw_config(hw
, vsi
->seid
, &bw_config
, NULL
);
4206 dev_info(&pf
->pdev
->dev
,
4207 "couldn't get PF vsi bw config, err %d, aq_err %d\n",
4208 aq_ret
, pf
->hw
.aq
.asq_last_status
);
4212 /* Get the VSI level BW configuration per TC */
4213 aq_ret
= i40e_aq_query_vsi_ets_sla_config(hw
, vsi
->seid
, &bw_ets_config
,
4216 dev_info(&pf
->pdev
->dev
,
4217 "couldn't get PF vsi ets bw config, err %d, aq_err %d\n",
4218 aq_ret
, pf
->hw
.aq
.asq_last_status
);
4222 if (bw_config
.tc_valid_bits
!= bw_ets_config
.tc_valid_bits
) {
4223 dev_info(&pf
->pdev
->dev
,
4224 "Enabled TCs mismatch from querying VSI BW info 0x%08x 0x%08x\n",
4225 bw_config
.tc_valid_bits
,
4226 bw_ets_config
.tc_valid_bits
);
4227 /* Still continuing */
4230 vsi
->bw_limit
= le16_to_cpu(bw_config
.port_bw_limit
);
4231 vsi
->bw_max_quanta
= bw_config
.max_bw
;
4232 tc_bw_max
= le16_to_cpu(bw_ets_config
.tc_bw_max
[0]) |
4233 (le16_to_cpu(bw_ets_config
.tc_bw_max
[1]) << 16);
4234 for (i
= 0; i
< I40E_MAX_TRAFFIC_CLASS
; i
++) {
4235 vsi
->bw_ets_share_credits
[i
] = bw_ets_config
.share_credits
[i
];
4236 vsi
->bw_ets_limit_credits
[i
] =
4237 le16_to_cpu(bw_ets_config
.credits
[i
]);
4238 /* 3 bits out of 4 for each TC */
4239 vsi
->bw_ets_max_quanta
[i
] = (u8
)((tc_bw_max
>> (i
*4)) & 0x7);
4246 * i40e_vsi_configure_bw_alloc - Configure VSI BW allocation per TC
4247 * @vsi: the VSI being configured
4248 * @enabled_tc: TC bitmap
4249 * @bw_credits: BW shared credits per TC
4251 * Returns 0 on success, negative value on failure
4253 static int i40e_vsi_configure_bw_alloc(struct i40e_vsi
*vsi
, u8 enabled_tc
,
4256 struct i40e_aqc_configure_vsi_tc_bw_data bw_data
;
4260 bw_data
.tc_valid_bits
= enabled_tc
;
4261 for (i
= 0; i
< I40E_MAX_TRAFFIC_CLASS
; i
++)
4262 bw_data
.tc_bw_credits
[i
] = bw_share
[i
];
4264 aq_ret
= i40e_aq_config_vsi_tc_bw(&vsi
->back
->hw
, vsi
->seid
, &bw_data
,
4267 dev_info(&vsi
->back
->pdev
->dev
,
4268 "AQ command Config VSI BW allocation per TC failed = %d\n",
4269 vsi
->back
->hw
.aq
.asq_last_status
);
4273 for (i
= 0; i
< I40E_MAX_TRAFFIC_CLASS
; i
++)
4274 vsi
->info
.qs_handle
[i
] = bw_data
.qs_handles
[i
];
4280 * i40e_vsi_config_netdev_tc - Setup the netdev TC configuration
4281 * @vsi: the VSI being configured
4282 * @enabled_tc: TC map to be enabled
4285 static void i40e_vsi_config_netdev_tc(struct i40e_vsi
*vsi
, u8 enabled_tc
)
4287 struct net_device
*netdev
= vsi
->netdev
;
4288 struct i40e_pf
*pf
= vsi
->back
;
4289 struct i40e_hw
*hw
= &pf
->hw
;
4292 struct i40e_dcbx_config
*dcbcfg
= &hw
->local_dcbx_config
;
4298 netdev_reset_tc(netdev
);
4302 /* Set up actual enabled TCs on the VSI */
4303 if (netdev_set_num_tc(netdev
, vsi
->tc_config
.numtc
))
4306 /* set per TC queues for the VSI */
4307 for (i
= 0; i
< I40E_MAX_TRAFFIC_CLASS
; i
++) {
4308 /* Only set TC queues for enabled tcs
4310 * e.g. For a VSI that has TC0 and TC3 enabled the
4311 * enabled_tc bitmap would be 0x00001001; the driver
4312 * will set the numtc for netdev as 2 that will be
4313 * referenced by the netdev layer as TC 0 and 1.
4315 if (vsi
->tc_config
.enabled_tc
& (1 << i
))
4316 netdev_set_tc_queue(netdev
,
4317 vsi
->tc_config
.tc_info
[i
].netdev_tc
,
4318 vsi
->tc_config
.tc_info
[i
].qcount
,
4319 vsi
->tc_config
.tc_info
[i
].qoffset
);
4322 /* Assign UP2TC map for the VSI */
4323 for (i
= 0; i
< I40E_MAX_USER_PRIORITY
; i
++) {
4324 /* Get the actual TC# for the UP */
4325 u8 ets_tc
= dcbcfg
->etscfg
.prioritytable
[i
];
4326 /* Get the mapped netdev TC# for the UP */
4327 netdev_tc
= vsi
->tc_config
.tc_info
[ets_tc
].netdev_tc
;
4328 netdev_set_prio_tc_map(netdev
, i
, netdev_tc
);
4333 * i40e_vsi_update_queue_map - Update our copy of VSi info with new queue map
4334 * @vsi: the VSI being configured
4335 * @ctxt: the ctxt buffer returned from AQ VSI update param command
4337 static void i40e_vsi_update_queue_map(struct i40e_vsi
*vsi
,
4338 struct i40e_vsi_context
*ctxt
)
4340 /* copy just the sections touched not the entire info
4341 * since not all sections are valid as returned by
4344 vsi
->info
.mapping_flags
= ctxt
->info
.mapping_flags
;
4345 memcpy(&vsi
->info
.queue_mapping
,
4346 &ctxt
->info
.queue_mapping
, sizeof(vsi
->info
.queue_mapping
));
4347 memcpy(&vsi
->info
.tc_mapping
, ctxt
->info
.tc_mapping
,
4348 sizeof(vsi
->info
.tc_mapping
));
4352 * i40e_vsi_config_tc - Configure VSI Tx Scheduler for given TC map
4353 * @vsi: VSI to be configured
4354 * @enabled_tc: TC bitmap
4356 * This configures a particular VSI for TCs that are mapped to the
4357 * given TC bitmap. It uses default bandwidth share for TCs across
4358 * VSIs to configure TC for a particular VSI.
4361 * It is expected that the VSI queues have been quisced before calling
4364 static int i40e_vsi_config_tc(struct i40e_vsi
*vsi
, u8 enabled_tc
)
4366 u8 bw_share
[I40E_MAX_TRAFFIC_CLASS
] = {0};
4367 struct i40e_vsi_context ctxt
;
4371 /* Check if enabled_tc is same as existing or new TCs */
4372 if (vsi
->tc_config
.enabled_tc
== enabled_tc
)
4375 /* Enable ETS TCs with equal BW Share for now across all VSIs */
4376 for (i
= 0; i
< I40E_MAX_TRAFFIC_CLASS
; i
++) {
4377 if (enabled_tc
& (1 << i
))
4381 ret
= i40e_vsi_configure_bw_alloc(vsi
, enabled_tc
, bw_share
);
4383 dev_info(&vsi
->back
->pdev
->dev
,
4384 "Failed configuring TC map %d for VSI %d\n",
4385 enabled_tc
, vsi
->seid
);
4389 /* Update Queue Pairs Mapping for currently enabled UPs */
4390 ctxt
.seid
= vsi
->seid
;
4391 ctxt
.pf_num
= vsi
->back
->hw
.pf_id
;
4393 ctxt
.uplink_seid
= vsi
->uplink_seid
;
4394 memcpy(&ctxt
.info
, &vsi
->info
, sizeof(vsi
->info
));
4395 i40e_vsi_setup_queue_map(vsi
, &ctxt
, enabled_tc
, false);
4397 /* Update the VSI after updating the VSI queue-mapping information */
4398 ret
= i40e_aq_update_vsi_params(&vsi
->back
->hw
, &ctxt
, NULL
);
4400 dev_info(&vsi
->back
->pdev
->dev
,
4401 "update vsi failed, aq_err=%d\n",
4402 vsi
->back
->hw
.aq
.asq_last_status
);
4405 /* update the local VSI info with updated queue map */
4406 i40e_vsi_update_queue_map(vsi
, &ctxt
);
4407 vsi
->info
.valid_sections
= 0;
4409 /* Update current VSI BW information */
4410 ret
= i40e_vsi_get_bw_info(vsi
);
4412 dev_info(&vsi
->back
->pdev
->dev
,
4413 "Failed updating vsi bw info, aq_err=%d\n",
4414 vsi
->back
->hw
.aq
.asq_last_status
);
4418 /* Update the netdev TC setup */
4419 i40e_vsi_config_netdev_tc(vsi
, enabled_tc
);
4425 * i40e_veb_config_tc - Configure TCs for given VEB
4427 * @enabled_tc: TC bitmap
4429 * Configures given TC bitmap for VEB (switching) element
4431 int i40e_veb_config_tc(struct i40e_veb
*veb
, u8 enabled_tc
)
4433 struct i40e_aqc_configure_switching_comp_bw_config_data bw_data
= {0};
4434 struct i40e_pf
*pf
= veb
->pf
;
4438 /* No TCs or already enabled TCs just return */
4439 if (!enabled_tc
|| veb
->enabled_tc
== enabled_tc
)
4442 bw_data
.tc_valid_bits
= enabled_tc
;
4443 /* bw_data.absolute_credits is not set (relative) */
4445 /* Enable ETS TCs with equal BW Share for now */
4446 for (i
= 0; i
< I40E_MAX_TRAFFIC_CLASS
; i
++) {
4447 if (enabled_tc
& (1 << i
))
4448 bw_data
.tc_bw_share_credits
[i
] = 1;
4451 ret
= i40e_aq_config_switch_comp_bw_config(&pf
->hw
, veb
->seid
,
4454 dev_info(&pf
->pdev
->dev
,
4455 "veb bw config failed, aq_err=%d\n",
4456 pf
->hw
.aq
.asq_last_status
);
4460 /* Update the BW information */
4461 ret
= i40e_veb_get_bw_info(veb
);
4463 dev_info(&pf
->pdev
->dev
,
4464 "Failed getting veb bw config, aq_err=%d\n",
4465 pf
->hw
.aq
.asq_last_status
);
4472 #ifdef CONFIG_I40E_DCB
4474 * i40e_dcb_reconfigure - Reconfigure all VEBs and VSIs
4477 * Reconfigure VEB/VSIs on a given PF; it is assumed that
4478 * the caller would've quiesce all the VSIs before calling
4481 static void i40e_dcb_reconfigure(struct i40e_pf
*pf
)
4487 /* Enable the TCs available on PF to all VEBs */
4488 tc_map
= i40e_pf_get_tc_map(pf
);
4489 for (v
= 0; v
< I40E_MAX_VEB
; v
++) {
4492 ret
= i40e_veb_config_tc(pf
->veb
[v
], tc_map
);
4494 dev_info(&pf
->pdev
->dev
,
4495 "Failed configuring TC for VEB seid=%d\n",
4497 /* Will try to configure as many components */
4501 /* Update each VSI */
4502 for (v
= 0; v
< pf
->num_alloc_vsi
; v
++) {
4506 /* - Enable all TCs for the LAN VSI
4508 * - For FCoE VSI only enable the TC configured
4509 * as per the APP TLV
4511 * - For all others keep them at TC0 for now
4513 if (v
== pf
->lan_vsi
)
4514 tc_map
= i40e_pf_get_tc_map(pf
);
4516 tc_map
= i40e_pf_get_default_tc(pf
);
4518 if (pf
->vsi
[v
]->type
== I40E_VSI_FCOE
)
4519 tc_map
= i40e_get_fcoe_tc_map(pf
);
4520 #endif /* #ifdef I40E_FCOE */
4522 ret
= i40e_vsi_config_tc(pf
->vsi
[v
], tc_map
);
4524 dev_info(&pf
->pdev
->dev
,
4525 "Failed configuring TC for VSI seid=%d\n",
4527 /* Will try to configure as many components */
4529 /* Re-configure VSI vectors based on updated TC map */
4530 i40e_vsi_map_rings_to_vectors(pf
->vsi
[v
]);
4531 if (pf
->vsi
[v
]->netdev
)
4532 i40e_dcbnl_set_all(pf
->vsi
[v
]);
4538 * i40e_resume_port_tx - Resume port Tx
4541 * Resume a port's Tx and issue a PF reset in case of failure to
4544 static int i40e_resume_port_tx(struct i40e_pf
*pf
)
4546 struct i40e_hw
*hw
= &pf
->hw
;
4549 ret
= i40e_aq_resume_port_tx(hw
, NULL
);
4551 dev_info(&pf
->pdev
->dev
,
4552 "AQ command Resume Port Tx failed = %d\n",
4553 pf
->hw
.aq
.asq_last_status
);
4554 /* Schedule PF reset to recover */
4555 set_bit(__I40E_PF_RESET_REQUESTED
, &pf
->state
);
4556 i40e_service_event_schedule(pf
);
4563 * i40e_init_pf_dcb - Initialize DCB configuration
4564 * @pf: PF being configured
4566 * Query the current DCB configuration and cache it
4567 * in the hardware structure
4569 static int i40e_init_pf_dcb(struct i40e_pf
*pf
)
4571 struct i40e_hw
*hw
= &pf
->hw
;
4574 /* Do not enable DCB for SW1 and SW2 images even if the FW is capable */
4575 if (((pf
->hw
.aq
.fw_maj_ver
== 4) && (pf
->hw
.aq
.fw_min_ver
< 33)) ||
4576 (pf
->hw
.aq
.fw_maj_ver
< 4))
4579 /* Get the initial DCB configuration */
4580 err
= i40e_init_dcb(hw
);
4582 /* Device/Function is not DCBX capable */
4583 if ((!hw
->func_caps
.dcb
) ||
4584 (hw
->dcbx_status
== I40E_DCBX_STATUS_DISABLED
)) {
4585 dev_info(&pf
->pdev
->dev
,
4586 "DCBX offload is not supported or is disabled for this PF.\n");
4588 if (pf
->flags
& I40E_FLAG_MFP_ENABLED
)
4592 /* When status is not DISABLED then DCBX in FW */
4593 pf
->dcbx_cap
= DCB_CAP_DCBX_LLD_MANAGED
|
4594 DCB_CAP_DCBX_VER_IEEE
;
4596 pf
->flags
|= I40E_FLAG_DCB_CAPABLE
;
4597 /* Enable DCB tagging only when more than one TC */
4598 if (i40e_dcb_get_num_tc(&hw
->local_dcbx_config
) > 1)
4599 pf
->flags
|= I40E_FLAG_DCB_ENABLED
;
4600 dev_dbg(&pf
->pdev
->dev
,
4601 "DCBX offload is supported for this PF.\n");
4604 dev_info(&pf
->pdev
->dev
,
4605 "AQ Querying DCB configuration failed: aq_err %d\n",
4606 pf
->hw
.aq
.asq_last_status
);
4612 #endif /* CONFIG_I40E_DCB */
4613 #define SPEED_SIZE 14
4616 * i40e_print_link_message - print link up or down
4617 * @vsi: the VSI for which link needs a message
4619 static void i40e_print_link_message(struct i40e_vsi
*vsi
, bool isup
)
4621 char speed
[SPEED_SIZE
] = "Unknown";
4622 char fc
[FC_SIZE
] = "RX/TX";
4625 netdev_info(vsi
->netdev
, "NIC Link is Down\n");
4629 /* Warn user if link speed on NPAR enabled partition is not at
4632 if (vsi
->back
->hw
.func_caps
.npar_enable
&&
4633 (vsi
->back
->hw
.phy
.link_info
.link_speed
== I40E_LINK_SPEED_1GB
||
4634 vsi
->back
->hw
.phy
.link_info
.link_speed
== I40E_LINK_SPEED_100MB
))
4635 netdev_warn(vsi
->netdev
,
4636 "The partition detected link speed that is less than 10Gbps\n");
4638 switch (vsi
->back
->hw
.phy
.link_info
.link_speed
) {
4639 case I40E_LINK_SPEED_40GB
:
4640 strlcpy(speed
, "40 Gbps", SPEED_SIZE
);
4642 case I40E_LINK_SPEED_10GB
:
4643 strlcpy(speed
, "10 Gbps", SPEED_SIZE
);
4645 case I40E_LINK_SPEED_1GB
:
4646 strlcpy(speed
, "1000 Mbps", SPEED_SIZE
);
4648 case I40E_LINK_SPEED_100MB
:
4649 strncpy(speed
, "100 Mbps", SPEED_SIZE
);
4655 switch (vsi
->back
->hw
.fc
.current_mode
) {
4657 strlcpy(fc
, "RX/TX", FC_SIZE
);
4659 case I40E_FC_TX_PAUSE
:
4660 strlcpy(fc
, "TX", FC_SIZE
);
4662 case I40E_FC_RX_PAUSE
:
4663 strlcpy(fc
, "RX", FC_SIZE
);
4666 strlcpy(fc
, "None", FC_SIZE
);
4670 netdev_info(vsi
->netdev
, "NIC Link is Up %s Full Duplex, Flow Control: %s\n",
4675 * i40e_up_complete - Finish the last steps of bringing up a connection
4676 * @vsi: the VSI being configured
4678 static int i40e_up_complete(struct i40e_vsi
*vsi
)
4680 struct i40e_pf
*pf
= vsi
->back
;
4683 if (pf
->flags
& I40E_FLAG_MSIX_ENABLED
)
4684 i40e_vsi_configure_msix(vsi
);
4686 i40e_configure_msi_and_legacy(vsi
);
4689 err
= i40e_vsi_control_rings(vsi
, true);
4693 clear_bit(__I40E_DOWN
, &vsi
->state
);
4694 i40e_napi_enable_all(vsi
);
4695 i40e_vsi_enable_irq(vsi
);
4697 if ((pf
->hw
.phy
.link_info
.link_info
& I40E_AQ_LINK_UP
) &&
4699 i40e_print_link_message(vsi
, true);
4700 netif_tx_start_all_queues(vsi
->netdev
);
4701 netif_carrier_on(vsi
->netdev
);
4702 } else if (vsi
->netdev
) {
4703 i40e_print_link_message(vsi
, false);
4704 /* need to check for qualified module here*/
4705 if ((pf
->hw
.phy
.link_info
.link_info
&
4706 I40E_AQ_MEDIA_AVAILABLE
) &&
4707 (!(pf
->hw
.phy
.link_info
.an_info
&
4708 I40E_AQ_QUALIFIED_MODULE
)))
4709 netdev_err(vsi
->netdev
,
4710 "the driver failed to link because an unqualified module was detected.");
4713 /* replay FDIR SB filters */
4714 if (vsi
->type
== I40E_VSI_FDIR
) {
4715 /* reset fd counters */
4716 pf
->fd_add_err
= pf
->fd_atr_cnt
= 0;
4717 if (pf
->fd_tcp_rule
> 0) {
4718 pf
->flags
&= ~I40E_FLAG_FD_ATR_ENABLED
;
4719 dev_info(&pf
->pdev
->dev
, "Forcing ATR off, sideband rules for TCP/IPv4 exist\n");
4720 pf
->fd_tcp_rule
= 0;
4722 i40e_fdir_filter_restore(vsi
);
4724 i40e_service_event_schedule(pf
);
4730 * i40e_vsi_reinit_locked - Reset the VSI
4731 * @vsi: the VSI being configured
4733 * Rebuild the ring structs after some configuration
4734 * has changed, e.g. MTU size.
4736 static void i40e_vsi_reinit_locked(struct i40e_vsi
*vsi
)
4738 struct i40e_pf
*pf
= vsi
->back
;
4740 WARN_ON(in_interrupt());
4741 while (test_and_set_bit(__I40E_CONFIG_BUSY
, &pf
->state
))
4742 usleep_range(1000, 2000);
4745 /* Give a VF some time to respond to the reset. The
4746 * two second wait is based upon the watchdog cycle in
4749 if (vsi
->type
== I40E_VSI_SRIOV
)
4752 clear_bit(__I40E_CONFIG_BUSY
, &pf
->state
);
4756 * i40e_up - Bring the connection back up after being down
4757 * @vsi: the VSI being configured
4759 int i40e_up(struct i40e_vsi
*vsi
)
4763 err
= i40e_vsi_configure(vsi
);
4765 err
= i40e_up_complete(vsi
);
4771 * i40e_down - Shutdown the connection processing
4772 * @vsi: the VSI being stopped
4774 void i40e_down(struct i40e_vsi
*vsi
)
4778 /* It is assumed that the caller of this function
4779 * sets the vsi->state __I40E_DOWN bit.
4782 netif_carrier_off(vsi
->netdev
);
4783 netif_tx_disable(vsi
->netdev
);
4785 i40e_vsi_disable_irq(vsi
);
4786 i40e_vsi_control_rings(vsi
, false);
4787 i40e_napi_disable_all(vsi
);
4789 for (i
= 0; i
< vsi
->num_queue_pairs
; i
++) {
4790 i40e_clean_tx_ring(vsi
->tx_rings
[i
]);
4791 i40e_clean_rx_ring(vsi
->rx_rings
[i
]);
4796 * i40e_setup_tc - configure multiple traffic classes
4797 * @netdev: net device to configure
4798 * @tc: number of traffic classes to enable
4801 int i40e_setup_tc(struct net_device
*netdev
, u8 tc
)
4803 static int i40e_setup_tc(struct net_device
*netdev
, u8 tc
)
4806 struct i40e_netdev_priv
*np
= netdev_priv(netdev
);
4807 struct i40e_vsi
*vsi
= np
->vsi
;
4808 struct i40e_pf
*pf
= vsi
->back
;
4813 /* Check if DCB enabled to continue */
4814 if (!(pf
->flags
& I40E_FLAG_DCB_ENABLED
)) {
4815 netdev_info(netdev
, "DCB is not enabled for adapter\n");
4819 /* Check if MFP enabled */
4820 if (pf
->flags
& I40E_FLAG_MFP_ENABLED
) {
4821 netdev_info(netdev
, "Configuring TC not supported in MFP mode\n");
4825 /* Check whether tc count is within enabled limit */
4826 if (tc
> i40e_pf_get_num_tc(pf
)) {
4827 netdev_info(netdev
, "TC count greater than enabled on link for adapter\n");
4831 /* Generate TC map for number of tc requested */
4832 for (i
= 0; i
< tc
; i
++)
4833 enabled_tc
|= (1 << i
);
4835 /* Requesting same TC configuration as already enabled */
4836 if (enabled_tc
== vsi
->tc_config
.enabled_tc
)
4839 /* Quiesce VSI queues */
4840 i40e_quiesce_vsi(vsi
);
4842 /* Configure VSI for enabled TCs */
4843 ret
= i40e_vsi_config_tc(vsi
, enabled_tc
);
4845 netdev_info(netdev
, "Failed configuring TC for VSI seid=%d\n",
4851 i40e_unquiesce_vsi(vsi
);
4858 * i40e_open - Called when a network interface is made active
4859 * @netdev: network interface device structure
4861 * The open entry point is called when a network interface is made
4862 * active by the system (IFF_UP). At this point all resources needed
4863 * for transmit and receive operations are allocated, the interrupt
4864 * handler is registered with the OS, the netdev watchdog subtask is
4865 * enabled, and the stack is notified that the interface is ready.
4867 * Returns 0 on success, negative value on failure
4869 int i40e_open(struct net_device
*netdev
)
4871 struct i40e_netdev_priv
*np
= netdev_priv(netdev
);
4872 struct i40e_vsi
*vsi
= np
->vsi
;
4873 struct i40e_pf
*pf
= vsi
->back
;
4876 /* disallow open during test or if eeprom is broken */
4877 if (test_bit(__I40E_TESTING
, &pf
->state
) ||
4878 test_bit(__I40E_BAD_EEPROM
, &pf
->state
))
4881 netif_carrier_off(netdev
);
4883 err
= i40e_vsi_open(vsi
);
4887 /* configure global TSO hardware offload settings */
4888 wr32(&pf
->hw
, I40E_GLLAN_TSOMSK_F
, be32_to_cpu(TCP_FLAG_PSH
|
4889 TCP_FLAG_FIN
) >> 16);
4890 wr32(&pf
->hw
, I40E_GLLAN_TSOMSK_M
, be32_to_cpu(TCP_FLAG_PSH
|
4892 TCP_FLAG_CWR
) >> 16);
4893 wr32(&pf
->hw
, I40E_GLLAN_TSOMSK_L
, be32_to_cpu(TCP_FLAG_CWR
) >> 16);
4895 #ifdef CONFIG_I40E_VXLAN
4896 vxlan_get_rx_port(netdev
);
4904 * @vsi: the VSI to open
4906 * Finish initialization of the VSI.
4908 * Returns 0 on success, negative value on failure
4910 int i40e_vsi_open(struct i40e_vsi
*vsi
)
4912 struct i40e_pf
*pf
= vsi
->back
;
4913 char int_name
[I40E_INT_NAME_STR_LEN
];
4916 /* allocate descriptors */
4917 err
= i40e_vsi_setup_tx_resources(vsi
);
4920 err
= i40e_vsi_setup_rx_resources(vsi
);
4924 err
= i40e_vsi_configure(vsi
);
4929 snprintf(int_name
, sizeof(int_name
) - 1, "%s-%s",
4930 dev_driver_string(&pf
->pdev
->dev
), vsi
->netdev
->name
);
4931 err
= i40e_vsi_request_irq(vsi
, int_name
);
4935 /* Notify the stack of the actual queue counts. */
4936 err
= netif_set_real_num_tx_queues(vsi
->netdev
,
4937 vsi
->num_queue_pairs
);
4939 goto err_set_queues
;
4941 err
= netif_set_real_num_rx_queues(vsi
->netdev
,
4942 vsi
->num_queue_pairs
);
4944 goto err_set_queues
;
4946 } else if (vsi
->type
== I40E_VSI_FDIR
) {
4947 snprintf(int_name
, sizeof(int_name
) - 1, "%s-%s:fdir",
4948 dev_driver_string(&pf
->pdev
->dev
),
4949 dev_name(&pf
->pdev
->dev
));
4950 err
= i40e_vsi_request_irq(vsi
, int_name
);
4957 err
= i40e_up_complete(vsi
);
4959 goto err_up_complete
;
4966 i40e_vsi_free_irq(vsi
);
4968 i40e_vsi_free_rx_resources(vsi
);
4970 i40e_vsi_free_tx_resources(vsi
);
4971 if (vsi
== pf
->vsi
[pf
->lan_vsi
])
4972 i40e_do_reset(pf
, (1 << __I40E_PF_RESET_REQUESTED
));
4978 * i40e_fdir_filter_exit - Cleans up the Flow Director accounting
4979 * @pf: Pointer to PF
4981 * This function destroys the hlist where all the Flow Director
4982 * filters were saved.
4984 static void i40e_fdir_filter_exit(struct i40e_pf
*pf
)
4986 struct i40e_fdir_filter
*filter
;
4987 struct hlist_node
*node2
;
4989 hlist_for_each_entry_safe(filter
, node2
,
4990 &pf
->fdir_filter_list
, fdir_node
) {
4991 hlist_del(&filter
->fdir_node
);
4994 pf
->fdir_pf_active_filters
= 0;
4998 * i40e_close - Disables a network interface
4999 * @netdev: network interface device structure
5001 * The close entry point is called when an interface is de-activated
5002 * by the OS. The hardware is still under the driver's control, but
5003 * this netdev interface is disabled.
5005 * Returns 0, this is not allowed to fail
5008 int i40e_close(struct net_device
*netdev
)
5010 static int i40e_close(struct net_device
*netdev
)
5013 struct i40e_netdev_priv
*np
= netdev_priv(netdev
);
5014 struct i40e_vsi
*vsi
= np
->vsi
;
5016 i40e_vsi_close(vsi
);
5022 * i40e_do_reset - Start a PF or Core Reset sequence
5023 * @pf: board private structure
5024 * @reset_flags: which reset is requested
5026 * The essential difference in resets is that the PF Reset
5027 * doesn't clear the packet buffers, doesn't reset the PE
5028 * firmware, and doesn't bother the other PFs on the chip.
5030 void i40e_do_reset(struct i40e_pf
*pf
, u32 reset_flags
)
5034 WARN_ON(in_interrupt());
5036 if (i40e_check_asq_alive(&pf
->hw
))
5037 i40e_vc_notify_reset(pf
);
5039 /* do the biggest reset indicated */
5040 if (reset_flags
& (1 << __I40E_GLOBAL_RESET_REQUESTED
)) {
5042 /* Request a Global Reset
5044 * This will start the chip's countdown to the actual full
5045 * chip reset event, and a warning interrupt to be sent
5046 * to all PFs, including the requestor. Our handler
5047 * for the warning interrupt will deal with the shutdown
5048 * and recovery of the switch setup.
5050 dev_dbg(&pf
->pdev
->dev
, "GlobalR requested\n");
5051 val
= rd32(&pf
->hw
, I40E_GLGEN_RTRIG
);
5052 val
|= I40E_GLGEN_RTRIG_GLOBR_MASK
;
5053 wr32(&pf
->hw
, I40E_GLGEN_RTRIG
, val
);
5055 } else if (reset_flags
& (1 << __I40E_CORE_RESET_REQUESTED
)) {
5057 /* Request a Core Reset
5059 * Same as Global Reset, except does *not* include the MAC/PHY
5061 dev_dbg(&pf
->pdev
->dev
, "CoreR requested\n");
5062 val
= rd32(&pf
->hw
, I40E_GLGEN_RTRIG
);
5063 val
|= I40E_GLGEN_RTRIG_CORER_MASK
;
5064 wr32(&pf
->hw
, I40E_GLGEN_RTRIG
, val
);
5065 i40e_flush(&pf
->hw
);
5067 } else if (reset_flags
& (1 << __I40E_PF_RESET_REQUESTED
)) {
5069 /* Request a PF Reset
5071 * Resets only the PF-specific registers
5073 * This goes directly to the tear-down and rebuild of
5074 * the switch, since we need to do all the recovery as
5075 * for the Core Reset.
5077 dev_dbg(&pf
->pdev
->dev
, "PFR requested\n");
5078 i40e_handle_reset_warning(pf
);
5080 } else if (reset_flags
& (1 << __I40E_REINIT_REQUESTED
)) {
5083 /* Find the VSI(s) that requested a re-init */
5084 dev_info(&pf
->pdev
->dev
,
5085 "VSI reinit requested\n");
5086 for (v
= 0; v
< pf
->num_alloc_vsi
; v
++) {
5087 struct i40e_vsi
*vsi
= pf
->vsi
[v
];
5089 test_bit(__I40E_REINIT_REQUESTED
, &vsi
->state
)) {
5090 i40e_vsi_reinit_locked(pf
->vsi
[v
]);
5091 clear_bit(__I40E_REINIT_REQUESTED
, &vsi
->state
);
5095 /* no further action needed, so return now */
5097 } else if (reset_flags
& (1 << __I40E_DOWN_REQUESTED
)) {
5100 /* Find the VSI(s) that needs to be brought down */
5101 dev_info(&pf
->pdev
->dev
, "VSI down requested\n");
5102 for (v
= 0; v
< pf
->num_alloc_vsi
; v
++) {
5103 struct i40e_vsi
*vsi
= pf
->vsi
[v
];
5105 test_bit(__I40E_DOWN_REQUESTED
, &vsi
->state
)) {
5106 set_bit(__I40E_DOWN
, &vsi
->state
);
5108 clear_bit(__I40E_DOWN_REQUESTED
, &vsi
->state
);
5112 /* no further action needed, so return now */
5115 dev_info(&pf
->pdev
->dev
,
5116 "bad reset request 0x%08x\n", reset_flags
);
5121 #ifdef CONFIG_I40E_DCB
5123 * i40e_dcb_need_reconfig - Check if DCB needs reconfig
5124 * @pf: board private structure
5125 * @old_cfg: current DCB config
5126 * @new_cfg: new DCB config
5128 bool i40e_dcb_need_reconfig(struct i40e_pf
*pf
,
5129 struct i40e_dcbx_config
*old_cfg
,
5130 struct i40e_dcbx_config
*new_cfg
)
5132 bool need_reconfig
= false;
5134 /* Check if ETS configuration has changed */
5135 if (memcmp(&new_cfg
->etscfg
,
5137 sizeof(new_cfg
->etscfg
))) {
5138 /* If Priority Table has changed reconfig is needed */
5139 if (memcmp(&new_cfg
->etscfg
.prioritytable
,
5140 &old_cfg
->etscfg
.prioritytable
,
5141 sizeof(new_cfg
->etscfg
.prioritytable
))) {
5142 need_reconfig
= true;
5143 dev_dbg(&pf
->pdev
->dev
, "ETS UP2TC changed.\n");
5146 if (memcmp(&new_cfg
->etscfg
.tcbwtable
,
5147 &old_cfg
->etscfg
.tcbwtable
,
5148 sizeof(new_cfg
->etscfg
.tcbwtable
)))
5149 dev_dbg(&pf
->pdev
->dev
, "ETS TC BW Table changed.\n");
5151 if (memcmp(&new_cfg
->etscfg
.tsatable
,
5152 &old_cfg
->etscfg
.tsatable
,
5153 sizeof(new_cfg
->etscfg
.tsatable
)))
5154 dev_dbg(&pf
->pdev
->dev
, "ETS TSA Table changed.\n");
5157 /* Check if PFC configuration has changed */
5158 if (memcmp(&new_cfg
->pfc
,
5160 sizeof(new_cfg
->pfc
))) {
5161 need_reconfig
= true;
5162 dev_dbg(&pf
->pdev
->dev
, "PFC config change detected.\n");
5165 /* Check if APP Table has changed */
5166 if (memcmp(&new_cfg
->app
,
5168 sizeof(new_cfg
->app
))) {
5169 need_reconfig
= true;
5170 dev_dbg(&pf
->pdev
->dev
, "APP Table change detected.\n");
5173 dev_dbg(&pf
->pdev
->dev
, "%s: need_reconfig=%d\n", __func__
,
5175 return need_reconfig
;
5179 * i40e_handle_lldp_event - Handle LLDP Change MIB event
5180 * @pf: board private structure
5181 * @e: event info posted on ARQ
5183 static int i40e_handle_lldp_event(struct i40e_pf
*pf
,
5184 struct i40e_arq_event_info
*e
)
5186 struct i40e_aqc_lldp_get_mib
*mib
=
5187 (struct i40e_aqc_lldp_get_mib
*)&e
->desc
.params
.raw
;
5188 struct i40e_hw
*hw
= &pf
->hw
;
5189 struct i40e_dcbx_config tmp_dcbx_cfg
;
5190 bool need_reconfig
= false;
5194 /* Not DCB capable or capability disabled */
5195 if (!(pf
->flags
& I40E_FLAG_DCB_CAPABLE
))
5198 /* Ignore if event is not for Nearest Bridge */
5199 type
= ((mib
->type
>> I40E_AQ_LLDP_BRIDGE_TYPE_SHIFT
)
5200 & I40E_AQ_LLDP_BRIDGE_TYPE_MASK
);
5201 dev_dbg(&pf
->pdev
->dev
,
5202 "%s: LLDP event mib bridge type 0x%x\n", __func__
, type
);
5203 if (type
!= I40E_AQ_LLDP_BRIDGE_TYPE_NEAREST_BRIDGE
)
5206 /* Check MIB Type and return if event for Remote MIB update */
5207 type
= mib
->type
& I40E_AQ_LLDP_MIB_TYPE_MASK
;
5208 dev_dbg(&pf
->pdev
->dev
,
5209 "%s: LLDP event mib type %s\n", __func__
,
5210 type
? "remote" : "local");
5211 if (type
== I40E_AQ_LLDP_MIB_REMOTE
) {
5212 /* Update the remote cached instance and return */
5213 ret
= i40e_aq_get_dcb_config(hw
, I40E_AQ_LLDP_MIB_REMOTE
,
5214 I40E_AQ_LLDP_BRIDGE_TYPE_NEAREST_BRIDGE
,
5215 &hw
->remote_dcbx_config
);
5219 memset(&tmp_dcbx_cfg
, 0, sizeof(tmp_dcbx_cfg
));
5220 /* Store the old configuration */
5221 memcpy(&tmp_dcbx_cfg
, &hw
->local_dcbx_config
, sizeof(tmp_dcbx_cfg
));
5223 /* Reset the old DCBx configuration data */
5224 memset(&hw
->local_dcbx_config
, 0, sizeof(hw
->local_dcbx_config
));
5225 /* Get updated DCBX data from firmware */
5226 ret
= i40e_get_dcb_config(&pf
->hw
);
5228 dev_info(&pf
->pdev
->dev
, "Failed querying DCB configuration data from firmware.\n");
5232 /* No change detected in DCBX configs */
5233 if (!memcmp(&tmp_dcbx_cfg
, &hw
->local_dcbx_config
,
5234 sizeof(tmp_dcbx_cfg
))) {
5235 dev_dbg(&pf
->pdev
->dev
, "No change detected in DCBX configuration.\n");
5239 need_reconfig
= i40e_dcb_need_reconfig(pf
, &tmp_dcbx_cfg
,
5240 &hw
->local_dcbx_config
);
5242 i40e_dcbnl_flush_apps(pf
, &tmp_dcbx_cfg
, &hw
->local_dcbx_config
);
5247 /* Enable DCB tagging only when more than one TC */
5248 if (i40e_dcb_get_num_tc(&hw
->local_dcbx_config
) > 1)
5249 pf
->flags
|= I40E_FLAG_DCB_ENABLED
;
5251 pf
->flags
&= ~I40E_FLAG_DCB_ENABLED
;
5253 set_bit(__I40E_PORT_TX_SUSPENDED
, &pf
->state
);
5254 /* Reconfiguration needed quiesce all VSIs */
5255 i40e_pf_quiesce_all_vsi(pf
);
5257 /* Changes in configuration update VEB/VSI */
5258 i40e_dcb_reconfigure(pf
);
5260 ret
= i40e_resume_port_tx(pf
);
5262 clear_bit(__I40E_PORT_TX_SUSPENDED
, &pf
->state
);
5263 /* In case of error no point in resuming VSIs */
5267 /* Wait for the PF's Tx queues to be disabled */
5268 ret
= i40e_pf_wait_txq_disabled(pf
);
5270 /* Schedule PF reset to recover */
5271 set_bit(__I40E_PF_RESET_REQUESTED
, &pf
->state
);
5272 i40e_service_event_schedule(pf
);
5274 i40e_pf_unquiesce_all_vsi(pf
);
5280 #endif /* CONFIG_I40E_DCB */
5283 * i40e_do_reset_safe - Protected reset path for userland calls.
5284 * @pf: board private structure
5285 * @reset_flags: which reset is requested
5288 void i40e_do_reset_safe(struct i40e_pf
*pf
, u32 reset_flags
)
5291 i40e_do_reset(pf
, reset_flags
);
5296 * i40e_handle_lan_overflow_event - Handler for LAN queue overflow event
5297 * @pf: board private structure
5298 * @e: event info posted on ARQ
5300 * Handler for LAN Queue Overflow Event generated by the firmware for PF
5303 static void i40e_handle_lan_overflow_event(struct i40e_pf
*pf
,
5304 struct i40e_arq_event_info
*e
)
5306 struct i40e_aqc_lan_overflow
*data
=
5307 (struct i40e_aqc_lan_overflow
*)&e
->desc
.params
.raw
;
5308 u32 queue
= le32_to_cpu(data
->prtdcb_rupto
);
5309 u32 qtx_ctl
= le32_to_cpu(data
->otx_ctl
);
5310 struct i40e_hw
*hw
= &pf
->hw
;
5314 dev_dbg(&pf
->pdev
->dev
, "overflow Rx Queue Number = %d QTX_CTL=0x%08x\n",
5317 /* Queue belongs to VF, find the VF and issue VF reset */
5318 if (((qtx_ctl
& I40E_QTX_CTL_PFVF_Q_MASK
)
5319 >> I40E_QTX_CTL_PFVF_Q_SHIFT
) == I40E_QTX_CTL_VF_QUEUE
) {
5320 vf_id
= (u16
)((qtx_ctl
& I40E_QTX_CTL_VFVM_INDX_MASK
)
5321 >> I40E_QTX_CTL_VFVM_INDX_SHIFT
);
5322 vf_id
-= hw
->func_caps
.vf_base_id
;
5323 vf
= &pf
->vf
[vf_id
];
5324 i40e_vc_notify_vf_reset(vf
);
5325 /* Allow VF to process pending reset notification */
5327 i40e_reset_vf(vf
, false);
5332 * i40e_service_event_complete - Finish up the service event
5333 * @pf: board private structure
5335 static void i40e_service_event_complete(struct i40e_pf
*pf
)
5337 BUG_ON(!test_bit(__I40E_SERVICE_SCHED
, &pf
->state
));
5339 /* flush memory to make sure state is correct before next watchog */
5340 smp_mb__before_atomic();
5341 clear_bit(__I40E_SERVICE_SCHED
, &pf
->state
);
5345 * i40e_get_cur_guaranteed_fd_count - Get the consumed guaranteed FD filters
5346 * @pf: board private structure
5348 u32
i40e_get_cur_guaranteed_fd_count(struct i40e_pf
*pf
)
5352 val
= rd32(&pf
->hw
, I40E_PFQF_FDSTAT
);
5353 fcnt_prog
= (val
& I40E_PFQF_FDSTAT_GUARANT_CNT_MASK
);
5358 * i40e_get_current_fd_count - Get total FD filters programmed for this PF
5359 * @pf: board private structure
5361 u32
i40e_get_current_fd_count(struct i40e_pf
*pf
)
5365 val
= rd32(&pf
->hw
, I40E_PFQF_FDSTAT
);
5366 fcnt_prog
= (val
& I40E_PFQF_FDSTAT_GUARANT_CNT_MASK
) +
5367 ((val
& I40E_PFQF_FDSTAT_BEST_CNT_MASK
) >>
5368 I40E_PFQF_FDSTAT_BEST_CNT_SHIFT
);
5373 * i40e_get_global_fd_count - Get total FD filters programmed on device
5374 * @pf: board private structure
5376 u32
i40e_get_global_fd_count(struct i40e_pf
*pf
)
5380 val
= rd32(&pf
->hw
, I40E_GLQF_FDCNT_0
);
5381 fcnt_prog
= (val
& I40E_GLQF_FDCNT_0_GUARANT_CNT_MASK
) +
5382 ((val
& I40E_GLQF_FDCNT_0_BESTCNT_MASK
) >>
5383 I40E_GLQF_FDCNT_0_BESTCNT_SHIFT
);
5388 * i40e_fdir_check_and_reenable - Function to reenabe FD ATR or SB if disabled
5389 * @pf: board private structure
5391 void i40e_fdir_check_and_reenable(struct i40e_pf
*pf
)
5393 u32 fcnt_prog
, fcnt_avail
;
5395 if (test_bit(__I40E_FD_FLUSH_REQUESTED
, &pf
->state
))
5398 /* Check if, FD SB or ATR was auto disabled and if there is enough room
5401 fcnt_prog
= i40e_get_global_fd_count(pf
);
5402 fcnt_avail
= pf
->fdir_pf_filter_count
;
5403 if ((fcnt_prog
< (fcnt_avail
- I40E_FDIR_BUFFER_HEAD_ROOM
)) ||
5404 (pf
->fd_add_err
== 0) ||
5405 (i40e_get_current_atr_cnt(pf
) < pf
->fd_atr_cnt
)) {
5406 if ((pf
->flags
& I40E_FLAG_FD_SB_ENABLED
) &&
5407 (pf
->auto_disable_flags
& I40E_FLAG_FD_SB_ENABLED
)) {
5408 pf
->auto_disable_flags
&= ~I40E_FLAG_FD_SB_ENABLED
;
5409 dev_info(&pf
->pdev
->dev
, "FD Sideband/ntuple is being enabled since we have space in the table now\n");
5412 /* Wait for some more space to be available to turn on ATR */
5413 if (fcnt_prog
< (fcnt_avail
- I40E_FDIR_BUFFER_HEAD_ROOM
* 2)) {
5414 if ((pf
->flags
& I40E_FLAG_FD_ATR_ENABLED
) &&
5415 (pf
->auto_disable_flags
& I40E_FLAG_FD_ATR_ENABLED
)) {
5416 pf
->auto_disable_flags
&= ~I40E_FLAG_FD_ATR_ENABLED
;
5417 dev_info(&pf
->pdev
->dev
, "ATR is being enabled since we have space in the table now\n");
5422 #define I40E_MIN_FD_FLUSH_INTERVAL 10
5423 #define I40E_MIN_FD_FLUSH_SB_ATR_UNSTABLE 30
5425 * i40e_fdir_flush_and_replay - Function to flush all FD filters and replay SB
5426 * @pf: board private structure
5428 static void i40e_fdir_flush_and_replay(struct i40e_pf
*pf
)
5430 unsigned long min_flush_time
;
5431 int flush_wait_retry
= 50;
5432 bool disable_atr
= false;
5436 if (!(pf
->flags
& (I40E_FLAG_FD_SB_ENABLED
| I40E_FLAG_FD_ATR_ENABLED
)))
5439 if (time_after(jiffies
, pf
->fd_flush_timestamp
+
5440 (I40E_MIN_FD_FLUSH_INTERVAL
* HZ
))) {
5441 /* If the flush is happening too quick and we have mostly
5442 * SB rules we should not re-enable ATR for some time.
5444 min_flush_time
= pf
->fd_flush_timestamp
5445 + (I40E_MIN_FD_FLUSH_SB_ATR_UNSTABLE
* HZ
);
5446 fd_room
= pf
->fdir_pf_filter_count
- pf
->fdir_pf_active_filters
;
5448 if (!(time_after(jiffies
, min_flush_time
)) &&
5449 (fd_room
< I40E_FDIR_BUFFER_HEAD_ROOM_FOR_ATR
)) {
5450 dev_info(&pf
->pdev
->dev
, "ATR disabled, not enough FD filter space.\n");
5454 pf
->fd_flush_timestamp
= jiffies
;
5455 pf
->flags
&= ~I40E_FLAG_FD_ATR_ENABLED
;
5456 /* flush all filters */
5457 wr32(&pf
->hw
, I40E_PFQF_CTL_1
,
5458 I40E_PFQF_CTL_1_CLEARFDTABLE_MASK
);
5459 i40e_flush(&pf
->hw
);
5463 /* Check FD flush status every 5-6msec */
5464 usleep_range(5000, 6000);
5465 reg
= rd32(&pf
->hw
, I40E_PFQF_CTL_1
);
5466 if (!(reg
& I40E_PFQF_CTL_1_CLEARFDTABLE_MASK
))
5468 } while (flush_wait_retry
--);
5469 if (reg
& I40E_PFQF_CTL_1_CLEARFDTABLE_MASK
) {
5470 dev_warn(&pf
->pdev
->dev
, "FD table did not flush, needs more time\n");
5472 /* replay sideband filters */
5473 i40e_fdir_filter_restore(pf
->vsi
[pf
->lan_vsi
]);
5475 pf
->flags
|= I40E_FLAG_FD_ATR_ENABLED
;
5476 clear_bit(__I40E_FD_FLUSH_REQUESTED
, &pf
->state
);
5477 dev_info(&pf
->pdev
->dev
, "FD Filter table flushed and FD-SB replayed.\n");
5483 * i40e_get_current_atr_count - Get the count of total FD ATR filters programmed
5484 * @pf: board private structure
5486 u32
i40e_get_current_atr_cnt(struct i40e_pf
*pf
)
5488 return i40e_get_current_fd_count(pf
) - pf
->fdir_pf_active_filters
;
5491 /* We can see up to 256 filter programming desc in transit if the filters are
5492 * being applied really fast; before we see the first
5493 * filter miss error on Rx queue 0. Accumulating enough error messages before
5494 * reacting will make sure we don't cause flush too often.
5496 #define I40E_MAX_FD_PROGRAM_ERROR 256
5499 * i40e_fdir_reinit_subtask - Worker thread to reinit FDIR filter table
5500 * @pf: board private structure
5502 static void i40e_fdir_reinit_subtask(struct i40e_pf
*pf
)
5505 /* if interface is down do nothing */
5506 if (test_bit(__I40E_DOWN
, &pf
->state
))
5509 if (!(pf
->flags
& (I40E_FLAG_FD_SB_ENABLED
| I40E_FLAG_FD_ATR_ENABLED
)))
5512 if (test_bit(__I40E_FD_FLUSH_REQUESTED
, &pf
->state
))
5513 i40e_fdir_flush_and_replay(pf
);
5515 i40e_fdir_check_and_reenable(pf
);
5520 * i40e_vsi_link_event - notify VSI of a link event
5521 * @vsi: vsi to be notified
5522 * @link_up: link up or down
5524 static void i40e_vsi_link_event(struct i40e_vsi
*vsi
, bool link_up
)
5526 if (!vsi
|| test_bit(__I40E_DOWN
, &vsi
->state
))
5529 switch (vsi
->type
) {
5534 if (!vsi
->netdev
|| !vsi
->netdev_registered
)
5538 netif_carrier_on(vsi
->netdev
);
5539 netif_tx_wake_all_queues(vsi
->netdev
);
5541 netif_carrier_off(vsi
->netdev
);
5542 netif_tx_stop_all_queues(vsi
->netdev
);
5546 case I40E_VSI_SRIOV
:
5547 case I40E_VSI_VMDQ2
:
5549 case I40E_VSI_MIRROR
:
5551 /* there is no notification for other VSIs */
5557 * i40e_veb_link_event - notify elements on the veb of a link event
5558 * @veb: veb to be notified
5559 * @link_up: link up or down
5561 static void i40e_veb_link_event(struct i40e_veb
*veb
, bool link_up
)
5566 if (!veb
|| !veb
->pf
)
5570 /* depth first... */
5571 for (i
= 0; i
< I40E_MAX_VEB
; i
++)
5572 if (pf
->veb
[i
] && (pf
->veb
[i
]->uplink_seid
== veb
->seid
))
5573 i40e_veb_link_event(pf
->veb
[i
], link_up
);
5575 /* ... now the local VSIs */
5576 for (i
= 0; i
< pf
->num_alloc_vsi
; i
++)
5577 if (pf
->vsi
[i
] && (pf
->vsi
[i
]->uplink_seid
== veb
->seid
))
5578 i40e_vsi_link_event(pf
->vsi
[i
], link_up
);
5582 * i40e_link_event - Update netif_carrier status
5583 * @pf: board private structure
5585 static void i40e_link_event(struct i40e_pf
*pf
)
5587 bool new_link
, old_link
;
5588 struct i40e_vsi
*vsi
= pf
->vsi
[pf
->lan_vsi
];
5589 u8 new_link_speed
, old_link_speed
;
5591 /* set this to force the get_link_status call to refresh state */
5592 pf
->hw
.phy
.get_link_info
= true;
5594 old_link
= (pf
->hw
.phy
.link_info_old
.link_info
& I40E_AQ_LINK_UP
);
5595 new_link
= i40e_get_link_status(&pf
->hw
);
5596 old_link_speed
= pf
->hw
.phy
.link_info_old
.link_speed
;
5597 new_link_speed
= pf
->hw
.phy
.link_info
.link_speed
;
5599 if (new_link
== old_link
&&
5600 new_link_speed
== old_link_speed
&&
5601 (test_bit(__I40E_DOWN
, &vsi
->state
) ||
5602 new_link
== netif_carrier_ok(vsi
->netdev
)))
5605 if (!test_bit(__I40E_DOWN
, &vsi
->state
))
5606 i40e_print_link_message(vsi
, new_link
);
5608 /* Notify the base of the switch tree connected to
5609 * the link. Floating VEBs are not notified.
5611 if (pf
->lan_veb
!= I40E_NO_VEB
&& pf
->veb
[pf
->lan_veb
])
5612 i40e_veb_link_event(pf
->veb
[pf
->lan_veb
], new_link
);
5614 i40e_vsi_link_event(vsi
, new_link
);
5617 i40e_vc_notify_link_state(pf
);
5619 if (pf
->flags
& I40E_FLAG_PTP
)
5620 i40e_ptp_set_increment(pf
);
5624 * i40e_check_hang_subtask - Check for hung queues and dropped interrupts
5625 * @pf: board private structure
5627 * Set the per-queue flags to request a check for stuck queues in the irq
5628 * clean functions, then force interrupts to be sure the irq clean is called.
5630 static void i40e_check_hang_subtask(struct i40e_pf
*pf
)
5634 /* If we're down or resetting, just bail */
5635 if (test_bit(__I40E_DOWN
, &pf
->state
) ||
5636 test_bit(__I40E_CONFIG_BUSY
, &pf
->state
))
5639 /* for each VSI/netdev
5641 * set the check flag
5643 * force an interrupt
5645 for (v
= 0; v
< pf
->num_alloc_vsi
; v
++) {
5646 struct i40e_vsi
*vsi
= pf
->vsi
[v
];
5650 test_bit(__I40E_DOWN
, &vsi
->state
) ||
5651 (vsi
->netdev
&& !netif_carrier_ok(vsi
->netdev
)))
5654 for (i
= 0; i
< vsi
->num_queue_pairs
; i
++) {
5655 set_check_for_tx_hang(vsi
->tx_rings
[i
]);
5656 if (test_bit(__I40E_HANG_CHECK_ARMED
,
5657 &vsi
->tx_rings
[i
]->state
))
5662 if (!(pf
->flags
& I40E_FLAG_MSIX_ENABLED
)) {
5663 wr32(&vsi
->back
->hw
, I40E_PFINT_DYN_CTL0
,
5664 (I40E_PFINT_DYN_CTL0_INTENA_MASK
|
5665 I40E_PFINT_DYN_CTL0_SWINT_TRIG_MASK
|
5666 I40E_PFINT_DYN_CTL0_ITR_INDX_MASK
|
5667 I40E_PFINT_DYN_CTL0_SW_ITR_INDX_ENA_MASK
|
5668 I40E_PFINT_DYN_CTL0_SW_ITR_INDX_MASK
));
5670 u16 vec
= vsi
->base_vector
- 1;
5671 u32 val
= (I40E_PFINT_DYN_CTLN_INTENA_MASK
|
5672 I40E_PFINT_DYN_CTLN_SWINT_TRIG_MASK
|
5673 I40E_PFINT_DYN_CTLN_ITR_INDX_MASK
|
5674 I40E_PFINT_DYN_CTLN_SW_ITR_INDX_ENA_MASK
|
5675 I40E_PFINT_DYN_CTLN_SW_ITR_INDX_MASK
);
5676 for (i
= 0; i
< vsi
->num_q_vectors
; i
++, vec
++)
5677 wr32(&vsi
->back
->hw
,
5678 I40E_PFINT_DYN_CTLN(vec
), val
);
5680 i40e_flush(&vsi
->back
->hw
);
5686 * i40e_watchdog_subtask - periodic checks not using event driven response
5687 * @pf: board private structure
5689 static void i40e_watchdog_subtask(struct i40e_pf
*pf
)
5693 /* if interface is down do nothing */
5694 if (test_bit(__I40E_DOWN
, &pf
->state
) ||
5695 test_bit(__I40E_CONFIG_BUSY
, &pf
->state
))
5698 /* make sure we don't do these things too often */
5699 if (time_before(jiffies
, (pf
->service_timer_previous
+
5700 pf
->service_timer_period
)))
5702 pf
->service_timer_previous
= jiffies
;
5704 i40e_check_hang_subtask(pf
);
5705 i40e_link_event(pf
);
5707 /* Update the stats for active netdevs so the network stack
5708 * can look at updated numbers whenever it cares to
5710 for (i
= 0; i
< pf
->num_alloc_vsi
; i
++)
5711 if (pf
->vsi
[i
] && pf
->vsi
[i
]->netdev
)
5712 i40e_update_stats(pf
->vsi
[i
]);
5714 /* Update the stats for the active switching components */
5715 for (i
= 0; i
< I40E_MAX_VEB
; i
++)
5717 i40e_update_veb_stats(pf
->veb
[i
]);
5719 i40e_ptp_rx_hang(pf
->vsi
[pf
->lan_vsi
]);
5723 * i40e_reset_subtask - Set up for resetting the device and driver
5724 * @pf: board private structure
5726 static void i40e_reset_subtask(struct i40e_pf
*pf
)
5728 u32 reset_flags
= 0;
5731 if (test_bit(__I40E_REINIT_REQUESTED
, &pf
->state
)) {
5732 reset_flags
|= (1 << __I40E_REINIT_REQUESTED
);
5733 clear_bit(__I40E_REINIT_REQUESTED
, &pf
->state
);
5735 if (test_bit(__I40E_PF_RESET_REQUESTED
, &pf
->state
)) {
5736 reset_flags
|= (1 << __I40E_PF_RESET_REQUESTED
);
5737 clear_bit(__I40E_PF_RESET_REQUESTED
, &pf
->state
);
5739 if (test_bit(__I40E_CORE_RESET_REQUESTED
, &pf
->state
)) {
5740 reset_flags
|= (1 << __I40E_CORE_RESET_REQUESTED
);
5741 clear_bit(__I40E_CORE_RESET_REQUESTED
, &pf
->state
);
5743 if (test_bit(__I40E_GLOBAL_RESET_REQUESTED
, &pf
->state
)) {
5744 reset_flags
|= (1 << __I40E_GLOBAL_RESET_REQUESTED
);
5745 clear_bit(__I40E_GLOBAL_RESET_REQUESTED
, &pf
->state
);
5747 if (test_bit(__I40E_DOWN_REQUESTED
, &pf
->state
)) {
5748 reset_flags
|= (1 << __I40E_DOWN_REQUESTED
);
5749 clear_bit(__I40E_DOWN_REQUESTED
, &pf
->state
);
5752 /* If there's a recovery already waiting, it takes
5753 * precedence before starting a new reset sequence.
5755 if (test_bit(__I40E_RESET_INTR_RECEIVED
, &pf
->state
)) {
5756 i40e_handle_reset_warning(pf
);
5760 /* If we're already down or resetting, just bail */
5762 !test_bit(__I40E_DOWN
, &pf
->state
) &&
5763 !test_bit(__I40E_CONFIG_BUSY
, &pf
->state
))
5764 i40e_do_reset(pf
, reset_flags
);
5771 * i40e_handle_link_event - Handle link event
5772 * @pf: board private structure
5773 * @e: event info posted on ARQ
5775 static void i40e_handle_link_event(struct i40e_pf
*pf
,
5776 struct i40e_arq_event_info
*e
)
5778 struct i40e_hw
*hw
= &pf
->hw
;
5779 struct i40e_aqc_get_link_status
*status
=
5780 (struct i40e_aqc_get_link_status
*)&e
->desc
.params
.raw
;
5781 struct i40e_link_status
*hw_link_info
= &hw
->phy
.link_info
;
5783 /* save off old link status information */
5784 memcpy(&pf
->hw
.phy
.link_info_old
, hw_link_info
,
5785 sizeof(pf
->hw
.phy
.link_info_old
));
5787 /* Do a new status request to re-enable LSE reporting
5788 * and load new status information into the hw struct
5789 * This completely ignores any state information
5790 * in the ARQ event info, instead choosing to always
5791 * issue the AQ update link status command.
5793 i40e_link_event(pf
);
5795 /* check for unqualified module, if link is down */
5796 if ((status
->link_info
& I40E_AQ_MEDIA_AVAILABLE
) &&
5797 (!(status
->an_info
& I40E_AQ_QUALIFIED_MODULE
)) &&
5798 (!(status
->link_info
& I40E_AQ_LINK_UP
)))
5799 dev_err(&pf
->pdev
->dev
,
5800 "The driver failed to link because an unqualified module was detected.\n");
5804 * i40e_clean_adminq_subtask - Clean the AdminQ rings
5805 * @pf: board private structure
5807 static void i40e_clean_adminq_subtask(struct i40e_pf
*pf
)
5809 struct i40e_arq_event_info event
;
5810 struct i40e_hw
*hw
= &pf
->hw
;
5817 /* Do not run clean AQ when PF reset fails */
5818 if (test_bit(__I40E_RESET_FAILED
, &pf
->state
))
5821 /* check for error indications */
5822 val
= rd32(&pf
->hw
, pf
->hw
.aq
.arq
.len
);
5824 if (val
& I40E_PF_ARQLEN_ARQVFE_MASK
) {
5825 dev_info(&pf
->pdev
->dev
, "ARQ VF Error detected\n");
5826 val
&= ~I40E_PF_ARQLEN_ARQVFE_MASK
;
5828 if (val
& I40E_PF_ARQLEN_ARQOVFL_MASK
) {
5829 dev_info(&pf
->pdev
->dev
, "ARQ Overflow Error detected\n");
5830 val
&= ~I40E_PF_ARQLEN_ARQOVFL_MASK
;
5832 if (val
& I40E_PF_ARQLEN_ARQCRIT_MASK
) {
5833 dev_info(&pf
->pdev
->dev
, "ARQ Critical Error detected\n");
5834 val
&= ~I40E_PF_ARQLEN_ARQCRIT_MASK
;
5837 wr32(&pf
->hw
, pf
->hw
.aq
.arq
.len
, val
);
5839 val
= rd32(&pf
->hw
, pf
->hw
.aq
.asq
.len
);
5841 if (val
& I40E_PF_ATQLEN_ATQVFE_MASK
) {
5842 dev_info(&pf
->pdev
->dev
, "ASQ VF Error detected\n");
5843 val
&= ~I40E_PF_ATQLEN_ATQVFE_MASK
;
5845 if (val
& I40E_PF_ATQLEN_ATQOVFL_MASK
) {
5846 dev_info(&pf
->pdev
->dev
, "ASQ Overflow Error detected\n");
5847 val
&= ~I40E_PF_ATQLEN_ATQOVFL_MASK
;
5849 if (val
& I40E_PF_ATQLEN_ATQCRIT_MASK
) {
5850 dev_info(&pf
->pdev
->dev
, "ASQ Critical Error detected\n");
5851 val
&= ~I40E_PF_ATQLEN_ATQCRIT_MASK
;
5854 wr32(&pf
->hw
, pf
->hw
.aq
.asq
.len
, val
);
5856 event
.buf_len
= I40E_MAX_AQ_BUF_SIZE
;
5857 event
.msg_buf
= kzalloc(event
.buf_len
, GFP_KERNEL
);
5862 ret
= i40e_clean_arq_element(hw
, &event
, &pending
);
5863 if (ret
== I40E_ERR_ADMIN_QUEUE_NO_WORK
)
5866 dev_info(&pf
->pdev
->dev
, "ARQ event error %d\n", ret
);
5870 opcode
= le16_to_cpu(event
.desc
.opcode
);
5873 case i40e_aqc_opc_get_link_status
:
5874 i40e_handle_link_event(pf
, &event
);
5876 case i40e_aqc_opc_send_msg_to_pf
:
5877 ret
= i40e_vc_process_vf_msg(pf
,
5878 le16_to_cpu(event
.desc
.retval
),
5879 le32_to_cpu(event
.desc
.cookie_high
),
5880 le32_to_cpu(event
.desc
.cookie_low
),
5884 case i40e_aqc_opc_lldp_update_mib
:
5885 dev_dbg(&pf
->pdev
->dev
, "ARQ: Update LLDP MIB event received\n");
5886 #ifdef CONFIG_I40E_DCB
5888 ret
= i40e_handle_lldp_event(pf
, &event
);
5890 #endif /* CONFIG_I40E_DCB */
5892 case i40e_aqc_opc_event_lan_overflow
:
5893 dev_dbg(&pf
->pdev
->dev
, "ARQ LAN queue overflow event received\n");
5894 i40e_handle_lan_overflow_event(pf
, &event
);
5896 case i40e_aqc_opc_send_msg_to_peer
:
5897 dev_info(&pf
->pdev
->dev
, "ARQ: Msg from other pf\n");
5900 dev_info(&pf
->pdev
->dev
,
5901 "ARQ Error: Unknown event 0x%04x received\n",
5905 } while (pending
&& (i
++ < pf
->adminq_work_limit
));
5907 clear_bit(__I40E_ADMINQ_EVENT_PENDING
, &pf
->state
);
5908 /* re-enable Admin queue interrupt cause */
5909 val
= rd32(hw
, I40E_PFINT_ICR0_ENA
);
5910 val
|= I40E_PFINT_ICR0_ENA_ADMINQ_MASK
;
5911 wr32(hw
, I40E_PFINT_ICR0_ENA
, val
);
5914 kfree(event
.msg_buf
);
5918 * i40e_verify_eeprom - make sure eeprom is good to use
5919 * @pf: board private structure
5921 static void i40e_verify_eeprom(struct i40e_pf
*pf
)
5925 err
= i40e_diag_eeprom_test(&pf
->hw
);
5927 /* retry in case of garbage read */
5928 err
= i40e_diag_eeprom_test(&pf
->hw
);
5930 dev_info(&pf
->pdev
->dev
, "eeprom check failed (%d), Tx/Rx traffic disabled\n",
5932 set_bit(__I40E_BAD_EEPROM
, &pf
->state
);
5936 if (!err
&& test_bit(__I40E_BAD_EEPROM
, &pf
->state
)) {
5937 dev_info(&pf
->pdev
->dev
, "eeprom check passed, Tx/Rx traffic enabled\n");
5938 clear_bit(__I40E_BAD_EEPROM
, &pf
->state
);
5943 * i40e_enable_pf_switch_lb
5944 * @pf: pointer to the PF structure
5946 * enable switch loop back or die - no point in a return value
5948 static void i40e_enable_pf_switch_lb(struct i40e_pf
*pf
)
5950 struct i40e_vsi
*vsi
= pf
->vsi
[pf
->lan_vsi
];
5951 struct i40e_vsi_context ctxt
;
5954 ctxt
.seid
= pf
->main_vsi_seid
;
5955 ctxt
.pf_num
= pf
->hw
.pf_id
;
5957 aq_ret
= i40e_aq_get_vsi_params(&pf
->hw
, &ctxt
, NULL
);
5959 dev_info(&pf
->pdev
->dev
,
5960 "%s couldn't get PF vsi config, err %d, aq_err %d\n",
5961 __func__
, aq_ret
, pf
->hw
.aq
.asq_last_status
);
5964 ctxt
.flags
= I40E_AQ_VSI_TYPE_PF
;
5965 ctxt
.info
.valid_sections
= cpu_to_le16(I40E_AQ_VSI_PROP_SWITCH_VALID
);
5966 ctxt
.info
.switch_id
|= cpu_to_le16(I40E_AQ_VSI_SW_ID_FLAG_ALLOW_LB
);
5968 aq_ret
= i40e_aq_update_vsi_params(&vsi
->back
->hw
, &ctxt
, NULL
);
5970 dev_info(&pf
->pdev
->dev
,
5971 "%s: update vsi switch failed, aq_err=%d\n",
5972 __func__
, vsi
->back
->hw
.aq
.asq_last_status
);
5977 * i40e_disable_pf_switch_lb
5978 * @pf: pointer to the PF structure
5980 * disable switch loop back or die - no point in a return value
5982 static void i40e_disable_pf_switch_lb(struct i40e_pf
*pf
)
5984 struct i40e_vsi
*vsi
= pf
->vsi
[pf
->lan_vsi
];
5985 struct i40e_vsi_context ctxt
;
5988 ctxt
.seid
= pf
->main_vsi_seid
;
5989 ctxt
.pf_num
= pf
->hw
.pf_id
;
5991 aq_ret
= i40e_aq_get_vsi_params(&pf
->hw
, &ctxt
, NULL
);
5993 dev_info(&pf
->pdev
->dev
,
5994 "%s couldn't get PF vsi config, err %d, aq_err %d\n",
5995 __func__
, aq_ret
, pf
->hw
.aq
.asq_last_status
);
5998 ctxt
.flags
= I40E_AQ_VSI_TYPE_PF
;
5999 ctxt
.info
.valid_sections
= cpu_to_le16(I40E_AQ_VSI_PROP_SWITCH_VALID
);
6000 ctxt
.info
.switch_id
&= ~cpu_to_le16(I40E_AQ_VSI_SW_ID_FLAG_ALLOW_LB
);
6002 aq_ret
= i40e_aq_update_vsi_params(&vsi
->back
->hw
, &ctxt
, NULL
);
6004 dev_info(&pf
->pdev
->dev
,
6005 "%s: update vsi switch failed, aq_err=%d\n",
6006 __func__
, vsi
->back
->hw
.aq
.asq_last_status
);
6011 * i40e_config_bridge_mode - Configure the HW bridge mode
6012 * @veb: pointer to the bridge instance
6014 * Configure the loop back mode for the LAN VSI that is downlink to the
6015 * specified HW bridge instance. It is expected this function is called
6016 * when a new HW bridge is instantiated.
6018 static void i40e_config_bridge_mode(struct i40e_veb
*veb
)
6020 struct i40e_pf
*pf
= veb
->pf
;
6022 dev_info(&pf
->pdev
->dev
, "enabling bridge mode: %s\n",
6023 veb
->bridge_mode
== BRIDGE_MODE_VEPA
? "VEPA" : "VEB");
6024 if (veb
->bridge_mode
& BRIDGE_MODE_VEPA
)
6025 i40e_disable_pf_switch_lb(pf
);
6027 i40e_enable_pf_switch_lb(pf
);
6031 * i40e_reconstitute_veb - rebuild the VEB and anything connected to it
6032 * @veb: pointer to the VEB instance
6034 * This is a recursive function that first builds the attached VSIs then
6035 * recurses in to build the next layer of VEB. We track the connections
6036 * through our own index numbers because the seid's from the HW could
6037 * change across the reset.
6039 static int i40e_reconstitute_veb(struct i40e_veb
*veb
)
6041 struct i40e_vsi
*ctl_vsi
= NULL
;
6042 struct i40e_pf
*pf
= veb
->pf
;
6046 /* build VSI that owns this VEB, temporarily attached to base VEB */
6047 for (v
= 0; v
< pf
->num_alloc_vsi
&& !ctl_vsi
; v
++) {
6049 pf
->vsi
[v
]->veb_idx
== veb
->idx
&&
6050 pf
->vsi
[v
]->flags
& I40E_VSI_FLAG_VEB_OWNER
) {
6051 ctl_vsi
= pf
->vsi
[v
];
6056 dev_info(&pf
->pdev
->dev
,
6057 "missing owner VSI for veb_idx %d\n", veb
->idx
);
6059 goto end_reconstitute
;
6061 if (ctl_vsi
!= pf
->vsi
[pf
->lan_vsi
])
6062 ctl_vsi
->uplink_seid
= pf
->vsi
[pf
->lan_vsi
]->uplink_seid
;
6063 ret
= i40e_add_vsi(ctl_vsi
);
6065 dev_info(&pf
->pdev
->dev
,
6066 "rebuild of owner VSI failed: %d\n", ret
);
6067 goto end_reconstitute
;
6069 i40e_vsi_reset_stats(ctl_vsi
);
6071 /* create the VEB in the switch and move the VSI onto the VEB */
6072 ret
= i40e_add_veb(veb
, ctl_vsi
);
6074 goto end_reconstitute
;
6076 i40e_config_bridge_mode(veb
);
6078 /* create the remaining VSIs attached to this VEB */
6079 for (v
= 0; v
< pf
->num_alloc_vsi
; v
++) {
6080 if (!pf
->vsi
[v
] || pf
->vsi
[v
] == ctl_vsi
)
6083 if (pf
->vsi
[v
]->veb_idx
== veb
->idx
) {
6084 struct i40e_vsi
*vsi
= pf
->vsi
[v
];
6085 vsi
->uplink_seid
= veb
->seid
;
6086 ret
= i40e_add_vsi(vsi
);
6088 dev_info(&pf
->pdev
->dev
,
6089 "rebuild of vsi_idx %d failed: %d\n",
6091 goto end_reconstitute
;
6093 i40e_vsi_reset_stats(vsi
);
6097 /* create any VEBs attached to this VEB - RECURSION */
6098 for (veb_idx
= 0; veb_idx
< I40E_MAX_VEB
; veb_idx
++) {
6099 if (pf
->veb
[veb_idx
] && pf
->veb
[veb_idx
]->veb_idx
== veb
->idx
) {
6100 pf
->veb
[veb_idx
]->uplink_seid
= veb
->seid
;
6101 ret
= i40e_reconstitute_veb(pf
->veb
[veb_idx
]);
6112 * i40e_get_capabilities - get info about the HW
6113 * @pf: the PF struct
6115 static int i40e_get_capabilities(struct i40e_pf
*pf
)
6117 struct i40e_aqc_list_capabilities_element_resp
*cap_buf
;
6122 buf_len
= 40 * sizeof(struct i40e_aqc_list_capabilities_element_resp
);
6124 cap_buf
= kzalloc(buf_len
, GFP_KERNEL
);
6128 /* this loads the data into the hw struct for us */
6129 err
= i40e_aq_discover_capabilities(&pf
->hw
, cap_buf
, buf_len
,
6131 i40e_aqc_opc_list_func_capabilities
,
6133 /* data loaded, buffer no longer needed */
6136 if (pf
->hw
.aq
.asq_last_status
== I40E_AQ_RC_ENOMEM
) {
6137 /* retry with a larger buffer */
6138 buf_len
= data_size
;
6139 } else if (pf
->hw
.aq
.asq_last_status
!= I40E_AQ_RC_OK
) {
6140 dev_info(&pf
->pdev
->dev
,
6141 "capability discovery failed: aq=%d\n",
6142 pf
->hw
.aq
.asq_last_status
);
6147 if (((pf
->hw
.aq
.fw_maj_ver
== 2) && (pf
->hw
.aq
.fw_min_ver
< 22)) ||
6148 (pf
->hw
.aq
.fw_maj_ver
< 2)) {
6149 pf
->hw
.func_caps
.num_msix_vectors
++;
6150 pf
->hw
.func_caps
.num_msix_vectors_vf
++;
6153 if (pf
->hw
.debug_mask
& I40E_DEBUG_USER
)
6154 dev_info(&pf
->pdev
->dev
,
6155 "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",
6156 pf
->hw
.pf_id
, pf
->hw
.func_caps
.num_vfs
,
6157 pf
->hw
.func_caps
.num_msix_vectors
,
6158 pf
->hw
.func_caps
.num_msix_vectors_vf
,
6159 pf
->hw
.func_caps
.fd_filters_guaranteed
,
6160 pf
->hw
.func_caps
.fd_filters_best_effort
,
6161 pf
->hw
.func_caps
.num_tx_qp
,
6162 pf
->hw
.func_caps
.num_vsis
);
6164 #define DEF_NUM_VSI (1 + (pf->hw.func_caps.fcoe ? 1 : 0) \
6165 + pf->hw.func_caps.num_vfs)
6166 if (pf
->hw
.revision_id
== 0 && (DEF_NUM_VSI
> pf
->hw
.func_caps
.num_vsis
)) {
6167 dev_info(&pf
->pdev
->dev
,
6168 "got num_vsis %d, setting num_vsis to %d\n",
6169 pf
->hw
.func_caps
.num_vsis
, DEF_NUM_VSI
);
6170 pf
->hw
.func_caps
.num_vsis
= DEF_NUM_VSI
;
6176 static int i40e_vsi_clear(struct i40e_vsi
*vsi
);
6179 * i40e_fdir_sb_setup - initialize the Flow Director resources for Sideband
6180 * @pf: board private structure
6182 static void i40e_fdir_sb_setup(struct i40e_pf
*pf
)
6184 struct i40e_vsi
*vsi
;
6187 /* quick workaround for an NVM issue that leaves a critical register
6190 if (!rd32(&pf
->hw
, I40E_GLQF_HKEY(0))) {
6191 static const u32 hkey
[] = {
6192 0xe640d33f, 0xcdfe98ab, 0x73fa7161, 0x0d7a7d36,
6193 0xeacb7d61, 0xaa4f05b6, 0x9c5c89ed, 0xfc425ddb,
6194 0xa4654832, 0xfc7461d4, 0x8f827619, 0xf5c63c21,
6197 for (i
= 0; i
<= I40E_GLQF_HKEY_MAX_INDEX
; i
++)
6198 wr32(&pf
->hw
, I40E_GLQF_HKEY(i
), hkey
[i
]);
6201 if (!(pf
->flags
& I40E_FLAG_FD_SB_ENABLED
))
6204 /* find existing VSI and see if it needs configuring */
6206 for (i
= 0; i
< pf
->num_alloc_vsi
; i
++) {
6207 if (pf
->vsi
[i
] && pf
->vsi
[i
]->type
== I40E_VSI_FDIR
) {
6213 /* create a new VSI if none exists */
6215 vsi
= i40e_vsi_setup(pf
, I40E_VSI_FDIR
,
6216 pf
->vsi
[pf
->lan_vsi
]->seid
, 0);
6218 dev_info(&pf
->pdev
->dev
, "Couldn't create FDir VSI\n");
6219 pf
->flags
&= ~I40E_FLAG_FD_SB_ENABLED
;
6224 i40e_vsi_setup_irqhandler(vsi
, i40e_fdir_clean_ring
);
6228 * i40e_fdir_teardown - release the Flow Director resources
6229 * @pf: board private structure
6231 static void i40e_fdir_teardown(struct i40e_pf
*pf
)
6235 i40e_fdir_filter_exit(pf
);
6236 for (i
= 0; i
< pf
->num_alloc_vsi
; i
++) {
6237 if (pf
->vsi
[i
] && pf
->vsi
[i
]->type
== I40E_VSI_FDIR
) {
6238 i40e_vsi_release(pf
->vsi
[i
]);
6245 * i40e_prep_for_reset - prep for the core to reset
6246 * @pf: board private structure
6248 * Close up the VFs and other things in prep for PF Reset.
6250 static void i40e_prep_for_reset(struct i40e_pf
*pf
)
6252 struct i40e_hw
*hw
= &pf
->hw
;
6253 i40e_status ret
= 0;
6256 clear_bit(__I40E_RESET_INTR_RECEIVED
, &pf
->state
);
6257 if (test_and_set_bit(__I40E_RESET_RECOVERY_PENDING
, &pf
->state
))
6260 dev_dbg(&pf
->pdev
->dev
, "Tearing down internal switch for reset\n");
6262 /* quiesce the VSIs and their queues that are not already DOWN */
6263 i40e_pf_quiesce_all_vsi(pf
);
6265 for (v
= 0; v
< pf
->num_alloc_vsi
; v
++) {
6267 pf
->vsi
[v
]->seid
= 0;
6270 i40e_shutdown_adminq(&pf
->hw
);
6272 /* call shutdown HMC */
6273 if (hw
->hmc
.hmc_obj
) {
6274 ret
= i40e_shutdown_lan_hmc(hw
);
6276 dev_warn(&pf
->pdev
->dev
,
6277 "shutdown_lan_hmc failed: %d\n", ret
);
6282 * i40e_send_version - update firmware with driver version
6285 static void i40e_send_version(struct i40e_pf
*pf
)
6287 struct i40e_driver_version dv
;
6289 dv
.major_version
= DRV_VERSION_MAJOR
;
6290 dv
.minor_version
= DRV_VERSION_MINOR
;
6291 dv
.build_version
= DRV_VERSION_BUILD
;
6292 dv
.subbuild_version
= 0;
6293 strlcpy(dv
.driver_string
, DRV_VERSION
, sizeof(dv
.driver_string
));
6294 i40e_aq_send_driver_version(&pf
->hw
, &dv
, NULL
);
6298 * i40e_reset_and_rebuild - reset and rebuild using a saved config
6299 * @pf: board private structure
6300 * @reinit: if the Main VSI needs to re-initialized.
6302 static void i40e_reset_and_rebuild(struct i40e_pf
*pf
, bool reinit
)
6304 struct i40e_hw
*hw
= &pf
->hw
;
6305 u8 set_fc_aq_fail
= 0;
6309 /* Now we wait for GRST to settle out.
6310 * We don't have to delete the VEBs or VSIs from the hw switch
6311 * because the reset will make them disappear.
6313 ret
= i40e_pf_reset(hw
);
6315 dev_info(&pf
->pdev
->dev
, "PF reset failed, %d\n", ret
);
6316 set_bit(__I40E_RESET_FAILED
, &pf
->state
);
6317 goto clear_recovery
;
6321 if (test_bit(__I40E_DOWN
, &pf
->state
))
6322 goto clear_recovery
;
6323 dev_dbg(&pf
->pdev
->dev
, "Rebuilding internal switch\n");
6325 /* rebuild the basics for the AdminQ, HMC, and initial HW switch */
6326 ret
= i40e_init_adminq(&pf
->hw
);
6328 dev_info(&pf
->pdev
->dev
, "Rebuild AdminQ failed, %d\n", ret
);
6329 goto clear_recovery
;
6332 /* re-verify the eeprom if we just had an EMP reset */
6333 if (test_and_clear_bit(__I40E_EMP_RESET_INTR_RECEIVED
, &pf
->state
))
6334 i40e_verify_eeprom(pf
);
6336 i40e_clear_pxe_mode(hw
);
6337 ret
= i40e_get_capabilities(pf
);
6339 dev_info(&pf
->pdev
->dev
, "i40e_get_capabilities failed, %d\n",
6341 goto end_core_reset
;
6344 ret
= i40e_init_lan_hmc(hw
, hw
->func_caps
.num_tx_qp
,
6345 hw
->func_caps
.num_rx_qp
,
6346 pf
->fcoe_hmc_cntx_num
, pf
->fcoe_hmc_filt_num
);
6348 dev_info(&pf
->pdev
->dev
, "init_lan_hmc failed: %d\n", ret
);
6349 goto end_core_reset
;
6351 ret
= i40e_configure_lan_hmc(hw
, I40E_HMC_MODEL_DIRECT_ONLY
);
6353 dev_info(&pf
->pdev
->dev
, "configure_lan_hmc failed: %d\n", ret
);
6354 goto end_core_reset
;
6357 #ifdef CONFIG_I40E_DCB
6358 ret
= i40e_init_pf_dcb(pf
);
6360 dev_info(&pf
->pdev
->dev
, "DCB init failed %d, disabled\n", ret
);
6361 pf
->flags
&= ~I40E_FLAG_DCB_CAPABLE
;
6362 /* Continue without DCB enabled */
6364 #endif /* CONFIG_I40E_DCB */
6366 ret
= i40e_init_pf_fcoe(pf
);
6368 dev_info(&pf
->pdev
->dev
, "init_pf_fcoe failed: %d\n", ret
);
6371 /* do basic switch setup */
6372 ret
= i40e_setup_pf_switch(pf
, reinit
);
6374 goto end_core_reset
;
6376 /* driver is only interested in link up/down and module qualification
6377 * reports from firmware
6379 ret
= i40e_aq_set_phy_int_mask(&pf
->hw
,
6380 I40E_AQ_EVENT_LINK_UPDOWN
|
6381 I40E_AQ_EVENT_MODULE_QUAL_FAIL
, NULL
);
6383 dev_info(&pf
->pdev
->dev
, "set phy mask fail, aq_err %d\n", ret
);
6385 /* make sure our flow control settings are restored */
6386 ret
= i40e_set_fc(&pf
->hw
, &set_fc_aq_fail
, true);
6388 dev_info(&pf
->pdev
->dev
, "set fc fail, aq_err %d\n", ret
);
6390 /* Rebuild the VSIs and VEBs that existed before reset.
6391 * They are still in our local switch element arrays, so only
6392 * need to rebuild the switch model in the HW.
6394 * If there were VEBs but the reconstitution failed, we'll try
6395 * try to recover minimal use by getting the basic PF VSI working.
6397 if (pf
->vsi
[pf
->lan_vsi
]->uplink_seid
!= pf
->mac_seid
) {
6398 dev_dbg(&pf
->pdev
->dev
, "attempting to rebuild switch\n");
6399 /* find the one VEB connected to the MAC, and find orphans */
6400 for (v
= 0; v
< I40E_MAX_VEB
; v
++) {
6404 if (pf
->veb
[v
]->uplink_seid
== pf
->mac_seid
||
6405 pf
->veb
[v
]->uplink_seid
== 0) {
6406 ret
= i40e_reconstitute_veb(pf
->veb
[v
]);
6411 /* If Main VEB failed, we're in deep doodoo,
6412 * so give up rebuilding the switch and set up
6413 * for minimal rebuild of PF VSI.
6414 * If orphan failed, we'll report the error
6415 * but try to keep going.
6417 if (pf
->veb
[v
]->uplink_seid
== pf
->mac_seid
) {
6418 dev_info(&pf
->pdev
->dev
,
6419 "rebuild of switch failed: %d, will try to set up simple PF connection\n",
6421 pf
->vsi
[pf
->lan_vsi
]->uplink_seid
6424 } else if (pf
->veb
[v
]->uplink_seid
== 0) {
6425 dev_info(&pf
->pdev
->dev
,
6426 "rebuild of orphan VEB failed: %d\n",
6433 if (pf
->vsi
[pf
->lan_vsi
]->uplink_seid
== pf
->mac_seid
) {
6434 dev_dbg(&pf
->pdev
->dev
, "attempting to rebuild PF VSI\n");
6435 /* no VEB, so rebuild only the Main VSI */
6436 ret
= i40e_add_vsi(pf
->vsi
[pf
->lan_vsi
]);
6438 dev_info(&pf
->pdev
->dev
,
6439 "rebuild of Main VSI failed: %d\n", ret
);
6440 goto end_core_reset
;
6444 if (((pf
->hw
.aq
.fw_maj_ver
== 4) && (pf
->hw
.aq
.fw_min_ver
< 33)) ||
6445 (pf
->hw
.aq
.fw_maj_ver
< 4)) {
6447 ret
= i40e_aq_set_link_restart_an(&pf
->hw
, true, NULL
);
6449 dev_info(&pf
->pdev
->dev
, "link restart failed, aq_err=%d\n",
6450 pf
->hw
.aq
.asq_last_status
);
6452 /* reinit the misc interrupt */
6453 if (pf
->flags
& I40E_FLAG_MSIX_ENABLED
)
6454 ret
= i40e_setup_misc_vector(pf
);
6456 /* restart the VSIs that were rebuilt and running before the reset */
6457 i40e_pf_unquiesce_all_vsi(pf
);
6459 if (pf
->num_alloc_vfs
) {
6460 for (v
= 0; v
< pf
->num_alloc_vfs
; v
++)
6461 i40e_reset_vf(&pf
->vf
[v
], true);
6464 /* tell the firmware that we're starting */
6465 i40e_send_version(pf
);
6468 clear_bit(__I40E_RESET_FAILED
, &pf
->state
);
6470 clear_bit(__I40E_RESET_RECOVERY_PENDING
, &pf
->state
);
6474 * i40e_handle_reset_warning - prep for the PF to reset, reset and rebuild
6475 * @pf: board private structure
6477 * Close up the VFs and other things in prep for a Core Reset,
6478 * then get ready to rebuild the world.
6480 static void i40e_handle_reset_warning(struct i40e_pf
*pf
)
6482 i40e_prep_for_reset(pf
);
6483 i40e_reset_and_rebuild(pf
, false);
6487 * i40e_handle_mdd_event
6488 * @pf: pointer to the PF structure
6490 * Called from the MDD irq handler to identify possibly malicious vfs
6492 static void i40e_handle_mdd_event(struct i40e_pf
*pf
)
6494 struct i40e_hw
*hw
= &pf
->hw
;
6495 bool mdd_detected
= false;
6496 bool pf_mdd_detected
= false;
6501 if (!test_bit(__I40E_MDD_EVENT_PENDING
, &pf
->state
))
6504 /* find what triggered the MDD event */
6505 reg
= rd32(hw
, I40E_GL_MDET_TX
);
6506 if (reg
& I40E_GL_MDET_TX_VALID_MASK
) {
6507 u8 pf_num
= (reg
& I40E_GL_MDET_TX_PF_NUM_MASK
) >>
6508 I40E_GL_MDET_TX_PF_NUM_SHIFT
;
6509 u16 vf_num
= (reg
& I40E_GL_MDET_TX_VF_NUM_MASK
) >>
6510 I40E_GL_MDET_TX_VF_NUM_SHIFT
;
6511 u8 event
= (reg
& I40E_GL_MDET_TX_EVENT_MASK
) >>
6512 I40E_GL_MDET_TX_EVENT_SHIFT
;
6513 u16 queue
= ((reg
& I40E_GL_MDET_TX_QUEUE_MASK
) >>
6514 I40E_GL_MDET_TX_QUEUE_SHIFT
) -
6515 pf
->hw
.func_caps
.base_queue
;
6516 if (netif_msg_tx_err(pf
))
6517 dev_info(&pf
->pdev
->dev
, "Malicious Driver Detection event 0x%02x on TX queue %d PF number 0x%02x VF number 0x%02x\n",
6518 event
, queue
, pf_num
, vf_num
);
6519 wr32(hw
, I40E_GL_MDET_TX
, 0xffffffff);
6520 mdd_detected
= true;
6522 reg
= rd32(hw
, I40E_GL_MDET_RX
);
6523 if (reg
& I40E_GL_MDET_RX_VALID_MASK
) {
6524 u8 func
= (reg
& I40E_GL_MDET_RX_FUNCTION_MASK
) >>
6525 I40E_GL_MDET_RX_FUNCTION_SHIFT
;
6526 u8 event
= (reg
& I40E_GL_MDET_RX_EVENT_MASK
) >>
6527 I40E_GL_MDET_RX_EVENT_SHIFT
;
6528 u16 queue
= ((reg
& I40E_GL_MDET_RX_QUEUE_MASK
) >>
6529 I40E_GL_MDET_RX_QUEUE_SHIFT
) -
6530 pf
->hw
.func_caps
.base_queue
;
6531 if (netif_msg_rx_err(pf
))
6532 dev_info(&pf
->pdev
->dev
, "Malicious Driver Detection event 0x%02x on RX queue %d of function 0x%02x\n",
6533 event
, queue
, func
);
6534 wr32(hw
, I40E_GL_MDET_RX
, 0xffffffff);
6535 mdd_detected
= true;
6539 reg
= rd32(hw
, I40E_PF_MDET_TX
);
6540 if (reg
& I40E_PF_MDET_TX_VALID_MASK
) {
6541 wr32(hw
, I40E_PF_MDET_TX
, 0xFFFF);
6542 dev_info(&pf
->pdev
->dev
, "TX driver issue detected, PF reset issued\n");
6543 pf_mdd_detected
= true;
6545 reg
= rd32(hw
, I40E_PF_MDET_RX
);
6546 if (reg
& I40E_PF_MDET_RX_VALID_MASK
) {
6547 wr32(hw
, I40E_PF_MDET_RX
, 0xFFFF);
6548 dev_info(&pf
->pdev
->dev
, "RX driver issue detected, PF reset issued\n");
6549 pf_mdd_detected
= true;
6551 /* Queue belongs to the PF, initiate a reset */
6552 if (pf_mdd_detected
) {
6553 set_bit(__I40E_PF_RESET_REQUESTED
, &pf
->state
);
6554 i40e_service_event_schedule(pf
);
6558 /* see if one of the VFs needs its hand slapped */
6559 for (i
= 0; i
< pf
->num_alloc_vfs
&& mdd_detected
; i
++) {
6561 reg
= rd32(hw
, I40E_VP_MDET_TX(i
));
6562 if (reg
& I40E_VP_MDET_TX_VALID_MASK
) {
6563 wr32(hw
, I40E_VP_MDET_TX(i
), 0xFFFF);
6564 vf
->num_mdd_events
++;
6565 dev_info(&pf
->pdev
->dev
, "TX driver issue detected on VF %d\n",
6569 reg
= rd32(hw
, I40E_VP_MDET_RX(i
));
6570 if (reg
& I40E_VP_MDET_RX_VALID_MASK
) {
6571 wr32(hw
, I40E_VP_MDET_RX(i
), 0xFFFF);
6572 vf
->num_mdd_events
++;
6573 dev_info(&pf
->pdev
->dev
, "RX driver issue detected on VF %d\n",
6577 if (vf
->num_mdd_events
> I40E_DEFAULT_NUM_MDD_EVENTS_ALLOWED
) {
6578 dev_info(&pf
->pdev
->dev
,
6579 "Too many MDD events on VF %d, disabled\n", i
);
6580 dev_info(&pf
->pdev
->dev
,
6581 "Use PF Control I/F to re-enable the VF\n");
6582 set_bit(I40E_VF_STAT_DISABLED
, &vf
->vf_states
);
6586 /* re-enable mdd interrupt cause */
6587 clear_bit(__I40E_MDD_EVENT_PENDING
, &pf
->state
);
6588 reg
= rd32(hw
, I40E_PFINT_ICR0_ENA
);
6589 reg
|= I40E_PFINT_ICR0_ENA_MAL_DETECT_MASK
;
6590 wr32(hw
, I40E_PFINT_ICR0_ENA
, reg
);
6594 #ifdef CONFIG_I40E_VXLAN
6596 * i40e_sync_vxlan_filters_subtask - Sync the VSI filter list with HW
6597 * @pf: board private structure
6599 static void i40e_sync_vxlan_filters_subtask(struct i40e_pf
*pf
)
6601 struct i40e_hw
*hw
= &pf
->hw
;
6607 if (!(pf
->flags
& I40E_FLAG_VXLAN_FILTER_SYNC
))
6610 pf
->flags
&= ~I40E_FLAG_VXLAN_FILTER_SYNC
;
6612 for (i
= 0; i
< I40E_MAX_PF_UDP_OFFLOAD_PORTS
; i
++) {
6613 if (pf
->pending_vxlan_bitmap
& (1 << i
)) {
6614 pf
->pending_vxlan_bitmap
&= ~(1 << i
);
6615 port
= pf
->vxlan_ports
[i
];
6617 i40e_aq_add_udp_tunnel(hw
, ntohs(port
),
6618 I40E_AQC_TUNNEL_TYPE_VXLAN
,
6619 &filter_index
, NULL
)
6620 : i40e_aq_del_udp_tunnel(hw
, i
, NULL
);
6623 dev_info(&pf
->pdev
->dev
, "Failed to execute AQ command for %s port %d with index %d\n",
6624 port
? "adding" : "deleting",
6625 ntohs(port
), port
? i
: i
);
6627 pf
->vxlan_ports
[i
] = 0;
6629 dev_info(&pf
->pdev
->dev
, "%s port %d with AQ command with index %d\n",
6630 port
? "Added" : "Deleted",
6631 ntohs(port
), port
? i
: filter_index
);
6639 * i40e_service_task - Run the driver's async subtasks
6640 * @work: pointer to work_struct containing our data
6642 static void i40e_service_task(struct work_struct
*work
)
6644 struct i40e_pf
*pf
= container_of(work
,
6647 unsigned long start_time
= jiffies
;
6649 /* don't bother with service tasks if a reset is in progress */
6650 if (test_bit(__I40E_RESET_RECOVERY_PENDING
, &pf
->state
)) {
6651 i40e_service_event_complete(pf
);
6655 i40e_reset_subtask(pf
);
6656 i40e_handle_mdd_event(pf
);
6657 i40e_vc_process_vflr_event(pf
);
6658 i40e_watchdog_subtask(pf
);
6659 i40e_fdir_reinit_subtask(pf
);
6660 i40e_sync_filters_subtask(pf
);
6661 #ifdef CONFIG_I40E_VXLAN
6662 i40e_sync_vxlan_filters_subtask(pf
);
6664 i40e_clean_adminq_subtask(pf
);
6666 i40e_service_event_complete(pf
);
6668 /* If the tasks have taken longer than one timer cycle or there
6669 * is more work to be done, reschedule the service task now
6670 * rather than wait for the timer to tick again.
6672 if (time_after(jiffies
, (start_time
+ pf
->service_timer_period
)) ||
6673 test_bit(__I40E_ADMINQ_EVENT_PENDING
, &pf
->state
) ||
6674 test_bit(__I40E_MDD_EVENT_PENDING
, &pf
->state
) ||
6675 test_bit(__I40E_VFLR_EVENT_PENDING
, &pf
->state
))
6676 i40e_service_event_schedule(pf
);
6680 * i40e_service_timer - timer callback
6681 * @data: pointer to PF struct
6683 static void i40e_service_timer(unsigned long data
)
6685 struct i40e_pf
*pf
= (struct i40e_pf
*)data
;
6687 mod_timer(&pf
->service_timer
,
6688 round_jiffies(jiffies
+ pf
->service_timer_period
));
6689 i40e_service_event_schedule(pf
);
6693 * i40e_set_num_rings_in_vsi - Determine number of rings in the VSI
6694 * @vsi: the VSI being configured
6696 static int i40e_set_num_rings_in_vsi(struct i40e_vsi
*vsi
)
6698 struct i40e_pf
*pf
= vsi
->back
;
6700 switch (vsi
->type
) {
6702 vsi
->alloc_queue_pairs
= pf
->num_lan_qps
;
6703 vsi
->num_desc
= ALIGN(I40E_DEFAULT_NUM_DESCRIPTORS
,
6704 I40E_REQ_DESCRIPTOR_MULTIPLE
);
6705 if (pf
->flags
& I40E_FLAG_MSIX_ENABLED
)
6706 vsi
->num_q_vectors
= pf
->num_lan_msix
;
6708 vsi
->num_q_vectors
= 1;
6713 vsi
->alloc_queue_pairs
= 1;
6714 vsi
->num_desc
= ALIGN(I40E_FDIR_RING_COUNT
,
6715 I40E_REQ_DESCRIPTOR_MULTIPLE
);
6716 vsi
->num_q_vectors
= 1;
6719 case I40E_VSI_VMDQ2
:
6720 vsi
->alloc_queue_pairs
= pf
->num_vmdq_qps
;
6721 vsi
->num_desc
= ALIGN(I40E_DEFAULT_NUM_DESCRIPTORS
,
6722 I40E_REQ_DESCRIPTOR_MULTIPLE
);
6723 vsi
->num_q_vectors
= pf
->num_vmdq_msix
;
6726 case I40E_VSI_SRIOV
:
6727 vsi
->alloc_queue_pairs
= pf
->num_vf_qps
;
6728 vsi
->num_desc
= ALIGN(I40E_DEFAULT_NUM_DESCRIPTORS
,
6729 I40E_REQ_DESCRIPTOR_MULTIPLE
);
6734 vsi
->alloc_queue_pairs
= pf
->num_fcoe_qps
;
6735 vsi
->num_desc
= ALIGN(I40E_DEFAULT_NUM_DESCRIPTORS
,
6736 I40E_REQ_DESCRIPTOR_MULTIPLE
);
6737 vsi
->num_q_vectors
= pf
->num_fcoe_msix
;
6740 #endif /* I40E_FCOE */
6750 * i40e_vsi_alloc_arrays - Allocate queue and vector pointer arrays for the vsi
6751 * @type: VSI pointer
6752 * @alloc_qvectors: a bool to specify if q_vectors need to be allocated.
6754 * On error: returns error code (negative)
6755 * On success: returns 0
6757 static int i40e_vsi_alloc_arrays(struct i40e_vsi
*vsi
, bool alloc_qvectors
)
6762 /* allocate memory for both Tx and Rx ring pointers */
6763 size
= sizeof(struct i40e_ring
*) * vsi
->alloc_queue_pairs
* 2;
6764 vsi
->tx_rings
= kzalloc(size
, GFP_KERNEL
);
6767 vsi
->rx_rings
= &vsi
->tx_rings
[vsi
->alloc_queue_pairs
];
6769 if (alloc_qvectors
) {
6770 /* allocate memory for q_vector pointers */
6771 size
= sizeof(struct i40e_q_vector
*) * vsi
->num_q_vectors
;
6772 vsi
->q_vectors
= kzalloc(size
, GFP_KERNEL
);
6773 if (!vsi
->q_vectors
) {
6781 kfree(vsi
->tx_rings
);
6786 * i40e_vsi_mem_alloc - Allocates the next available struct vsi in the PF
6787 * @pf: board private structure
6788 * @type: type of VSI
6790 * On error: returns error code (negative)
6791 * On success: returns vsi index in PF (positive)
6793 static int i40e_vsi_mem_alloc(struct i40e_pf
*pf
, enum i40e_vsi_type type
)
6796 struct i40e_vsi
*vsi
;
6800 /* Need to protect the allocation of the VSIs at the PF level */
6801 mutex_lock(&pf
->switch_mutex
);
6803 /* VSI list may be fragmented if VSI creation/destruction has
6804 * been happening. We can afford to do a quick scan to look
6805 * for any free VSIs in the list.
6807 * find next empty vsi slot, looping back around if necessary
6810 while (i
< pf
->num_alloc_vsi
&& pf
->vsi
[i
])
6812 if (i
>= pf
->num_alloc_vsi
) {
6814 while (i
< pf
->next_vsi
&& pf
->vsi
[i
])
6818 if (i
< pf
->num_alloc_vsi
&& !pf
->vsi
[i
]) {
6819 vsi_idx
= i
; /* Found one! */
6822 goto unlock_pf
; /* out of VSI slots! */
6826 vsi
= kzalloc(sizeof(*vsi
), GFP_KERNEL
);
6833 set_bit(__I40E_DOWN
, &vsi
->state
);
6836 vsi
->rx_itr_setting
= pf
->rx_itr_default
;
6837 vsi
->tx_itr_setting
= pf
->tx_itr_default
;
6838 vsi
->rss_table_size
= (vsi
->type
== I40E_VSI_MAIN
) ?
6839 pf
->rss_table_size
: 64;
6840 vsi
->netdev_registered
= false;
6841 vsi
->work_limit
= I40E_DEFAULT_IRQ_WORK
;
6842 INIT_LIST_HEAD(&vsi
->mac_filter_list
);
6843 vsi
->irqs_ready
= false;
6845 ret
= i40e_set_num_rings_in_vsi(vsi
);
6849 ret
= i40e_vsi_alloc_arrays(vsi
, true);
6853 /* Setup default MSIX irq handler for VSI */
6854 i40e_vsi_setup_irqhandler(vsi
, i40e_msix_clean_rings
);
6856 pf
->vsi
[vsi_idx
] = vsi
;
6861 pf
->next_vsi
= i
- 1;
6864 mutex_unlock(&pf
->switch_mutex
);
6869 * i40e_vsi_free_arrays - Free queue and vector pointer arrays for the VSI
6870 * @type: VSI pointer
6871 * @free_qvectors: a bool to specify if q_vectors need to be freed.
6873 * On error: returns error code (negative)
6874 * On success: returns 0
6876 static void i40e_vsi_free_arrays(struct i40e_vsi
*vsi
, bool free_qvectors
)
6878 /* free the ring and vector containers */
6879 if (free_qvectors
) {
6880 kfree(vsi
->q_vectors
);
6881 vsi
->q_vectors
= NULL
;
6883 kfree(vsi
->tx_rings
);
6884 vsi
->tx_rings
= NULL
;
6885 vsi
->rx_rings
= NULL
;
6889 * i40e_vsi_clear - Deallocate the VSI provided
6890 * @vsi: the VSI being un-configured
6892 static int i40e_vsi_clear(struct i40e_vsi
*vsi
)
6903 mutex_lock(&pf
->switch_mutex
);
6904 if (!pf
->vsi
[vsi
->idx
]) {
6905 dev_err(&pf
->pdev
->dev
, "pf->vsi[%d] is NULL, just free vsi[%d](%p,type %d)\n",
6906 vsi
->idx
, vsi
->idx
, vsi
, vsi
->type
);
6910 if (pf
->vsi
[vsi
->idx
] != vsi
) {
6911 dev_err(&pf
->pdev
->dev
,
6912 "pf->vsi[%d](%p, type %d) != vsi[%d](%p,type %d): no free!\n",
6913 pf
->vsi
[vsi
->idx
]->idx
,
6915 pf
->vsi
[vsi
->idx
]->type
,
6916 vsi
->idx
, vsi
, vsi
->type
);
6920 /* updates the PF for this cleared vsi */
6921 i40e_put_lump(pf
->qp_pile
, vsi
->base_queue
, vsi
->idx
);
6922 i40e_put_lump(pf
->irq_pile
, vsi
->base_vector
, vsi
->idx
);
6924 i40e_vsi_free_arrays(vsi
, true);
6926 pf
->vsi
[vsi
->idx
] = NULL
;
6927 if (vsi
->idx
< pf
->next_vsi
)
6928 pf
->next_vsi
= vsi
->idx
;
6931 mutex_unlock(&pf
->switch_mutex
);
6939 * i40e_vsi_clear_rings - Deallocates the Rx and Tx rings for the provided VSI
6940 * @vsi: the VSI being cleaned
6942 static void i40e_vsi_clear_rings(struct i40e_vsi
*vsi
)
6946 if (vsi
->tx_rings
&& vsi
->tx_rings
[0]) {
6947 for (i
= 0; i
< vsi
->alloc_queue_pairs
; i
++) {
6948 kfree_rcu(vsi
->tx_rings
[i
], rcu
);
6949 vsi
->tx_rings
[i
] = NULL
;
6950 vsi
->rx_rings
[i
] = NULL
;
6956 * i40e_alloc_rings - Allocates the Rx and Tx rings for the provided VSI
6957 * @vsi: the VSI being configured
6959 static int i40e_alloc_rings(struct i40e_vsi
*vsi
)
6961 struct i40e_ring
*tx_ring
, *rx_ring
;
6962 struct i40e_pf
*pf
= vsi
->back
;
6965 /* Set basic values in the rings to be used later during open() */
6966 for (i
= 0; i
< vsi
->alloc_queue_pairs
; i
++) {
6967 /* allocate space for both Tx and Rx in one shot */
6968 tx_ring
= kzalloc(sizeof(struct i40e_ring
) * 2, GFP_KERNEL
);
6972 tx_ring
->queue_index
= i
;
6973 tx_ring
->reg_idx
= vsi
->base_queue
+ i
;
6974 tx_ring
->ring_active
= false;
6976 tx_ring
->netdev
= vsi
->netdev
;
6977 tx_ring
->dev
= &pf
->pdev
->dev
;
6978 tx_ring
->count
= vsi
->num_desc
;
6980 tx_ring
->dcb_tc
= 0;
6981 vsi
->tx_rings
[i
] = tx_ring
;
6983 rx_ring
= &tx_ring
[1];
6984 rx_ring
->queue_index
= i
;
6985 rx_ring
->reg_idx
= vsi
->base_queue
+ i
;
6986 rx_ring
->ring_active
= false;
6988 rx_ring
->netdev
= vsi
->netdev
;
6989 rx_ring
->dev
= &pf
->pdev
->dev
;
6990 rx_ring
->count
= vsi
->num_desc
;
6992 rx_ring
->dcb_tc
= 0;
6993 if (pf
->flags
& I40E_FLAG_16BYTE_RX_DESC_ENABLED
)
6994 set_ring_16byte_desc_enabled(rx_ring
);
6996 clear_ring_16byte_desc_enabled(rx_ring
);
6997 vsi
->rx_rings
[i
] = rx_ring
;
7003 i40e_vsi_clear_rings(vsi
);
7008 * i40e_reserve_msix_vectors - Reserve MSI-X vectors in the kernel
7009 * @pf: board private structure
7010 * @vectors: the number of MSI-X vectors to request
7012 * Returns the number of vectors reserved, or error
7014 static int i40e_reserve_msix_vectors(struct i40e_pf
*pf
, int vectors
)
7016 vectors
= pci_enable_msix_range(pf
->pdev
, pf
->msix_entries
,
7017 I40E_MIN_MSIX
, vectors
);
7019 dev_info(&pf
->pdev
->dev
,
7020 "MSI-X vector reservation failed: %d\n", vectors
);
7028 * i40e_init_msix - Setup the MSIX capability
7029 * @pf: board private structure
7031 * Work with the OS to set up the MSIX vectors needed.
7033 * Returns the number of vectors reserved or negative on failure
7035 static int i40e_init_msix(struct i40e_pf
*pf
)
7037 struct i40e_hw
*hw
= &pf
->hw
;
7042 if (!(pf
->flags
& I40E_FLAG_MSIX_ENABLED
))
7045 /* The number of vectors we'll request will be comprised of:
7046 * - Add 1 for "other" cause for Admin Queue events, etc.
7047 * - The number of LAN queue pairs
7048 * - Queues being used for RSS.
7049 * We don't need as many as max_rss_size vectors.
7050 * use rss_size instead in the calculation since that
7051 * is governed by number of cpus in the system.
7052 * - assumes symmetric Tx/Rx pairing
7053 * - The number of VMDq pairs
7055 * - The number of FCOE qps.
7057 * Once we count this up, try the request.
7059 * If we can't get what we want, we'll simplify to nearly nothing
7060 * and try again. If that still fails, we punt.
7062 vectors_left
= hw
->func_caps
.num_msix_vectors
;
7065 /* reserve one vector for miscellaneous handler */
7071 /* reserve vectors for the main PF traffic queues */
7072 pf
->num_lan_msix
= min_t(int, num_online_cpus(), vectors_left
);
7073 vectors_left
-= pf
->num_lan_msix
;
7074 v_budget
+= pf
->num_lan_msix
;
7076 /* reserve one vector for sideband flow director */
7077 if (pf
->flags
& I40E_FLAG_FD_SB_ENABLED
) {
7082 pf
->flags
&= ~I40E_FLAG_FD_SB_ENABLED
;
7087 /* can we reserve enough for FCoE? */
7088 if (pf
->flags
& I40E_FLAG_FCOE_ENABLED
) {
7090 pf
->num_fcoe_msix
= 0;
7091 else if (vectors_left
>= pf
->num_fcoe_qps
)
7092 pf
->num_fcoe_msix
= pf
->num_fcoe_qps
;
7094 pf
->num_fcoe_msix
= 1;
7095 v_budget
+= pf
->num_fcoe_msix
;
7096 vectors_left
-= pf
->num_fcoe_msix
;
7100 /* any vectors left over go for VMDq support */
7101 if (pf
->flags
& I40E_FLAG_VMDQ_ENABLED
) {
7102 int vmdq_vecs_wanted
= pf
->num_vmdq_vsis
* pf
->num_vmdq_qps
;
7103 int vmdq_vecs
= min_t(int, vectors_left
, vmdq_vecs_wanted
);
7105 /* if we're short on vectors for what's desired, we limit
7106 * the queues per vmdq. If this is still more than are
7107 * available, the user will need to change the number of
7108 * queues/vectors used by the PF later with the ethtool
7111 if (vmdq_vecs
< vmdq_vecs_wanted
)
7112 pf
->num_vmdq_qps
= 1;
7113 pf
->num_vmdq_msix
= pf
->num_vmdq_qps
;
7115 v_budget
+= vmdq_vecs
;
7116 vectors_left
-= vmdq_vecs
;
7119 pf
->msix_entries
= kcalloc(v_budget
, sizeof(struct msix_entry
),
7121 if (!pf
->msix_entries
)
7124 for (i
= 0; i
< v_budget
; i
++)
7125 pf
->msix_entries
[i
].entry
= i
;
7126 v_actual
= i40e_reserve_msix_vectors(pf
, v_budget
);
7128 if (v_actual
!= v_budget
) {
7129 /* If we have limited resources, we will start with no vectors
7130 * for the special features and then allocate vectors to some
7131 * of these features based on the policy and at the end disable
7132 * the features that did not get any vectors.
7135 pf
->num_fcoe_qps
= 0;
7136 pf
->num_fcoe_msix
= 0;
7138 pf
->num_vmdq_msix
= 0;
7141 if (v_actual
< I40E_MIN_MSIX
) {
7142 pf
->flags
&= ~I40E_FLAG_MSIX_ENABLED
;
7143 kfree(pf
->msix_entries
);
7144 pf
->msix_entries
= NULL
;
7147 } else if (v_actual
== I40E_MIN_MSIX
) {
7148 /* Adjust for minimal MSIX use */
7149 pf
->num_vmdq_vsis
= 0;
7150 pf
->num_vmdq_qps
= 0;
7151 pf
->num_lan_qps
= 1;
7152 pf
->num_lan_msix
= 1;
7154 } else if (v_actual
!= v_budget
) {
7157 /* reserve the misc vector */
7160 /* Scale vector usage down */
7161 pf
->num_vmdq_msix
= 1; /* force VMDqs to only one vector */
7162 pf
->num_vmdq_vsis
= 1;
7163 pf
->num_vmdq_qps
= 1;
7164 pf
->flags
&= ~I40E_FLAG_FD_SB_ENABLED
;
7166 /* partition out the remaining vectors */
7169 pf
->num_lan_msix
= 1;
7173 /* give one vector to FCoE */
7174 if (pf
->flags
& I40E_FLAG_FCOE_ENABLED
) {
7175 pf
->num_lan_msix
= 1;
7176 pf
->num_fcoe_msix
= 1;
7179 pf
->num_lan_msix
= 2;
7184 /* give one vector to FCoE */
7185 if (pf
->flags
& I40E_FLAG_FCOE_ENABLED
) {
7186 pf
->num_fcoe_msix
= 1;
7190 /* give the rest to the PF */
7191 pf
->num_lan_msix
= min_t(int, vec
, pf
->num_lan_qps
);
7196 if ((pf
->flags
& I40E_FLAG_VMDQ_ENABLED
) &&
7197 (pf
->num_vmdq_msix
== 0)) {
7198 dev_info(&pf
->pdev
->dev
, "VMDq disabled, not enough MSI-X vectors\n");
7199 pf
->flags
&= ~I40E_FLAG_VMDQ_ENABLED
;
7203 if ((pf
->flags
& I40E_FLAG_FCOE_ENABLED
) && (pf
->num_fcoe_msix
== 0)) {
7204 dev_info(&pf
->pdev
->dev
, "FCOE disabled, not enough MSI-X vectors\n");
7205 pf
->flags
&= ~I40E_FLAG_FCOE_ENABLED
;
7212 * i40e_vsi_alloc_q_vector - Allocate memory for a single interrupt vector
7213 * @vsi: the VSI being configured
7214 * @v_idx: index of the vector in the vsi struct
7216 * We allocate one q_vector. If allocation fails we return -ENOMEM.
7218 static int i40e_vsi_alloc_q_vector(struct i40e_vsi
*vsi
, int v_idx
)
7220 struct i40e_q_vector
*q_vector
;
7222 /* allocate q_vector */
7223 q_vector
= kzalloc(sizeof(struct i40e_q_vector
), GFP_KERNEL
);
7227 q_vector
->vsi
= vsi
;
7228 q_vector
->v_idx
= v_idx
;
7229 cpumask_set_cpu(v_idx
, &q_vector
->affinity_mask
);
7231 netif_napi_add(vsi
->netdev
, &q_vector
->napi
,
7232 i40e_napi_poll
, NAPI_POLL_WEIGHT
);
7234 q_vector
->rx
.latency_range
= I40E_LOW_LATENCY
;
7235 q_vector
->tx
.latency_range
= I40E_LOW_LATENCY
;
7237 /* tie q_vector and vsi together */
7238 vsi
->q_vectors
[v_idx
] = q_vector
;
7244 * i40e_vsi_alloc_q_vectors - Allocate memory for interrupt vectors
7245 * @vsi: the VSI being configured
7247 * We allocate one q_vector per queue interrupt. If allocation fails we
7250 static int i40e_vsi_alloc_q_vectors(struct i40e_vsi
*vsi
)
7252 struct i40e_pf
*pf
= vsi
->back
;
7253 int v_idx
, num_q_vectors
;
7256 /* if not MSIX, give the one vector only to the LAN VSI */
7257 if (pf
->flags
& I40E_FLAG_MSIX_ENABLED
)
7258 num_q_vectors
= vsi
->num_q_vectors
;
7259 else if (vsi
== pf
->vsi
[pf
->lan_vsi
])
7264 for (v_idx
= 0; v_idx
< num_q_vectors
; v_idx
++) {
7265 err
= i40e_vsi_alloc_q_vector(vsi
, v_idx
);
7274 i40e_free_q_vector(vsi
, v_idx
);
7280 * i40e_init_interrupt_scheme - Determine proper interrupt scheme
7281 * @pf: board private structure to initialize
7283 static void i40e_init_interrupt_scheme(struct i40e_pf
*pf
)
7288 if (pf
->flags
& I40E_FLAG_MSIX_ENABLED
) {
7289 vectors
= i40e_init_msix(pf
);
7291 pf
->flags
&= ~(I40E_FLAG_MSIX_ENABLED
|
7293 I40E_FLAG_FCOE_ENABLED
|
7295 I40E_FLAG_RSS_ENABLED
|
7296 I40E_FLAG_DCB_CAPABLE
|
7297 I40E_FLAG_SRIOV_ENABLED
|
7298 I40E_FLAG_FD_SB_ENABLED
|
7299 I40E_FLAG_FD_ATR_ENABLED
|
7300 I40E_FLAG_VMDQ_ENABLED
);
7302 /* rework the queue expectations without MSIX */
7303 i40e_determine_queue_usage(pf
);
7307 if (!(pf
->flags
& I40E_FLAG_MSIX_ENABLED
) &&
7308 (pf
->flags
& I40E_FLAG_MSI_ENABLED
)) {
7309 dev_info(&pf
->pdev
->dev
, "MSI-X not available, trying MSI\n");
7310 vectors
= pci_enable_msi(pf
->pdev
);
7312 dev_info(&pf
->pdev
->dev
, "MSI init failed - %d\n",
7314 pf
->flags
&= ~I40E_FLAG_MSI_ENABLED
;
7316 vectors
= 1; /* one MSI or Legacy vector */
7319 if (!(pf
->flags
& (I40E_FLAG_MSIX_ENABLED
| I40E_FLAG_MSI_ENABLED
)))
7320 dev_info(&pf
->pdev
->dev
, "MSI-X and MSI not available, falling back to Legacy IRQ\n");
7322 /* set up vector assignment tracking */
7323 size
= sizeof(struct i40e_lump_tracking
) + (sizeof(u16
) * vectors
);
7324 pf
->irq_pile
= kzalloc(size
, GFP_KERNEL
);
7325 pf
->irq_pile
->num_entries
= vectors
;
7326 pf
->irq_pile
->search_hint
= 0;
7328 /* track first vector for misc interrupts */
7329 (void)i40e_get_lump(pf
, pf
->irq_pile
, 1, I40E_PILE_VALID_BIT
- 1);
7333 * i40e_setup_misc_vector - Setup the misc vector to handle non queue events
7334 * @pf: board private structure
7336 * This sets up the handler for MSIX 0, which is used to manage the
7337 * non-queue interrupts, e.g. AdminQ and errors. This is not used
7338 * when in MSI or Legacy interrupt mode.
7340 static int i40e_setup_misc_vector(struct i40e_pf
*pf
)
7342 struct i40e_hw
*hw
= &pf
->hw
;
7345 /* Only request the irq if this is the first time through, and
7346 * not when we're rebuilding after a Reset
7348 if (!test_bit(__I40E_RESET_RECOVERY_PENDING
, &pf
->state
)) {
7349 err
= request_irq(pf
->msix_entries
[0].vector
,
7350 i40e_intr
, 0, pf
->int_name
, pf
);
7352 dev_info(&pf
->pdev
->dev
,
7353 "request_irq for %s failed: %d\n",
7359 i40e_enable_misc_int_causes(pf
);
7361 /* associate no queues to the misc vector */
7362 wr32(hw
, I40E_PFINT_LNKLST0
, I40E_QUEUE_END_OF_LIST
);
7363 wr32(hw
, I40E_PFINT_ITR0(I40E_RX_ITR
), I40E_ITR_8K
);
7367 i40e_irq_dynamic_enable_icr0(pf
);
7373 * i40e_config_rss - Prepare for RSS if used
7374 * @pf: board private structure
7376 static int i40e_config_rss(struct i40e_pf
*pf
)
7378 u32 rss_key
[I40E_PFQF_HKEY_MAX_INDEX
+ 1];
7379 struct i40e_vsi
*vsi
= pf
->vsi
[pf
->lan_vsi
];
7380 struct i40e_hw
*hw
= &pf
->hw
;
7386 netdev_rss_key_fill(rss_key
, sizeof(rss_key
));
7387 for (i
= 0; i
<= I40E_PFQF_HKEY_MAX_INDEX
; i
++)
7388 wr32(hw
, I40E_PFQF_HKEY(i
), rss_key
[i
]);
7390 /* By default we enable TCP/UDP with IPv4/IPv6 ptypes */
7391 hena
= (u64
)rd32(hw
, I40E_PFQF_HENA(0)) |
7392 ((u64
)rd32(hw
, I40E_PFQF_HENA(1)) << 32);
7393 hena
|= I40E_DEFAULT_RSS_HENA
;
7394 wr32(hw
, I40E_PFQF_HENA(0), (u32
)hena
);
7395 wr32(hw
, I40E_PFQF_HENA(1), (u32
)(hena
>> 32));
7397 vsi
->rss_size
= min_t(int, pf
->rss_size
, vsi
->num_queue_pairs
);
7399 /* Check capability and Set table size and register per hw expectation*/
7400 reg_val
= rd32(hw
, I40E_PFQF_CTL_0
);
7401 if (pf
->rss_table_size
== 512)
7402 reg_val
|= I40E_PFQF_CTL_0_HASHLUTSIZE_512
;
7404 reg_val
&= ~I40E_PFQF_CTL_0_HASHLUTSIZE_512
;
7405 wr32(hw
, I40E_PFQF_CTL_0
, reg_val
);
7407 /* Populate the LUT with max no. of queues in round robin fashion */
7408 for (i
= 0, j
= 0; i
< pf
->rss_table_size
; i
++, j
++) {
7410 /* The assumption is that lan qp count will be the highest
7411 * qp count for any PF VSI that needs RSS.
7412 * If multiple VSIs need RSS support, all the qp counts
7413 * for those VSIs should be a power of 2 for RSS to work.
7414 * If LAN VSI is the only consumer for RSS then this requirement
7417 if (j
== vsi
->rss_size
)
7419 /* lut = 4-byte sliding window of 4 lut entries */
7420 lut
= (lut
<< 8) | (j
&
7421 ((0x1 << pf
->hw
.func_caps
.rss_table_entry_width
) - 1));
7422 /* On i = 3, we have 4 entries in lut; write to the register */
7424 wr32(hw
, I40E_PFQF_HLUT(i
>> 2), lut
);
7432 * i40e_reconfig_rss_queues - change number of queues for rss and rebuild
7433 * @pf: board private structure
7434 * @queue_count: the requested queue count for rss.
7436 * returns 0 if rss is not enabled, if enabled returns the final rss queue
7437 * count which may be different from the requested queue count.
7439 int i40e_reconfig_rss_queues(struct i40e_pf
*pf
, int queue_count
)
7441 struct i40e_vsi
*vsi
= pf
->vsi
[pf
->lan_vsi
];
7444 if (!(pf
->flags
& I40E_FLAG_RSS_ENABLED
))
7447 new_rss_size
= min_t(int, queue_count
, pf
->rss_size_max
);
7449 if (queue_count
!= vsi
->num_queue_pairs
) {
7450 vsi
->req_queue_pairs
= queue_count
;
7451 i40e_prep_for_reset(pf
);
7453 pf
->rss_size
= new_rss_size
;
7455 i40e_reset_and_rebuild(pf
, true);
7456 i40e_config_rss(pf
);
7458 dev_info(&pf
->pdev
->dev
, "RSS count: %d\n", pf
->rss_size
);
7459 return pf
->rss_size
;
7463 * i40e_get_npar_bw_setting - Retrieve BW settings for this PF partition
7464 * @pf: board private structure
7466 i40e_status
i40e_get_npar_bw_setting(struct i40e_pf
*pf
)
7469 bool min_valid
, max_valid
;
7472 status
= i40e_read_bw_from_alt_ram(&pf
->hw
, &max_bw
, &min_bw
,
7473 &min_valid
, &max_valid
);
7477 pf
->npar_min_bw
= min_bw
;
7479 pf
->npar_max_bw
= max_bw
;
7486 * i40e_set_npar_bw_setting - Set BW settings for this PF partition
7487 * @pf: board private structure
7489 i40e_status
i40e_set_npar_bw_setting(struct i40e_pf
*pf
)
7491 struct i40e_aqc_configure_partition_bw_data bw_data
;
7494 /* Set the valid bit for this PF */
7495 bw_data
.pf_valid_bits
= cpu_to_le16(1 << pf
->hw
.pf_id
);
7496 bw_data
.max_bw
[pf
->hw
.pf_id
] = pf
->npar_max_bw
& I40E_ALT_BW_VALUE_MASK
;
7497 bw_data
.min_bw
[pf
->hw
.pf_id
] = pf
->npar_min_bw
& I40E_ALT_BW_VALUE_MASK
;
7499 /* Set the new bandwidths */
7500 status
= i40e_aq_configure_partition_bw(&pf
->hw
, &bw_data
, NULL
);
7506 * i40e_commit_npar_bw_setting - Commit BW settings for this PF partition
7507 * @pf: board private structure
7509 i40e_status
i40e_commit_npar_bw_setting(struct i40e_pf
*pf
)
7511 /* Commit temporary BW setting to permanent NVM image */
7512 enum i40e_admin_queue_err last_aq_status
;
7516 if (pf
->hw
.partition_id
!= 1) {
7517 dev_info(&pf
->pdev
->dev
,
7518 "Commit BW only works on partition 1! This is partition %d",
7519 pf
->hw
.partition_id
);
7520 ret
= I40E_NOT_SUPPORTED
;
7524 /* Acquire NVM for read access */
7525 ret
= i40e_acquire_nvm(&pf
->hw
, I40E_RESOURCE_READ
);
7526 last_aq_status
= pf
->hw
.aq
.asq_last_status
;
7528 dev_info(&pf
->pdev
->dev
,
7529 "Cannot acquire NVM for read access, err %d: aq_err %d\n",
7530 ret
, last_aq_status
);
7534 /* Read word 0x10 of NVM - SW compatibility word 1 */
7535 ret
= i40e_aq_read_nvm(&pf
->hw
,
7536 I40E_SR_NVM_CONTROL_WORD
,
7537 0x10, sizeof(nvm_word
), &nvm_word
,
7539 /* Save off last admin queue command status before releasing
7542 last_aq_status
= pf
->hw
.aq
.asq_last_status
;
7543 i40e_release_nvm(&pf
->hw
);
7545 dev_info(&pf
->pdev
->dev
, "NVM read error, err %d aq_err %d\n",
7546 ret
, last_aq_status
);
7550 /* Wait a bit for NVM release to complete */
7553 /* Acquire NVM for write access */
7554 ret
= i40e_acquire_nvm(&pf
->hw
, I40E_RESOURCE_WRITE
);
7555 last_aq_status
= pf
->hw
.aq
.asq_last_status
;
7557 dev_info(&pf
->pdev
->dev
,
7558 "Cannot acquire NVM for write access, err %d: aq_err %d\n",
7559 ret
, last_aq_status
);
7562 /* Write it back out unchanged to initiate update NVM,
7563 * which will force a write of the shadow (alt) RAM to
7564 * the NVM - thus storing the bandwidth values permanently.
7566 ret
= i40e_aq_update_nvm(&pf
->hw
,
7567 I40E_SR_NVM_CONTROL_WORD
,
7568 0x10, sizeof(nvm_word
),
7569 &nvm_word
, true, NULL
);
7570 /* Save off last admin queue command status before releasing
7573 last_aq_status
= pf
->hw
.aq
.asq_last_status
;
7574 i40e_release_nvm(&pf
->hw
);
7576 dev_info(&pf
->pdev
->dev
,
7577 "BW settings NOT SAVED, err %d aq_err %d\n",
7578 ret
, last_aq_status
);
7585 * i40e_sw_init - Initialize general software structures (struct i40e_pf)
7586 * @pf: board private structure to initialize
7588 * i40e_sw_init initializes the Adapter private data structure.
7589 * Fields are initialized based on PCI device information and
7590 * OS network device settings (MTU size).
7592 static int i40e_sw_init(struct i40e_pf
*pf
)
7597 pf
->msg_enable
= netif_msg_init(I40E_DEFAULT_MSG_ENABLE
,
7598 (NETIF_MSG_DRV
|NETIF_MSG_PROBE
|NETIF_MSG_LINK
));
7599 pf
->hw
.debug_mask
= pf
->msg_enable
| I40E_DEBUG_DIAG
;
7600 if (debug
!= -1 && debug
!= I40E_DEFAULT_MSG_ENABLE
) {
7601 if (I40E_DEBUG_USER
& debug
)
7602 pf
->hw
.debug_mask
= debug
;
7603 pf
->msg_enable
= netif_msg_init((debug
& ~I40E_DEBUG_USER
),
7604 I40E_DEFAULT_MSG_ENABLE
);
7607 /* Set default capability flags */
7608 pf
->flags
= I40E_FLAG_RX_CSUM_ENABLED
|
7609 I40E_FLAG_MSI_ENABLED
|
7610 I40E_FLAG_MSIX_ENABLED
;
7612 if (iommu_present(&pci_bus_type
))
7613 pf
->flags
|= I40E_FLAG_RX_PS_ENABLED
;
7615 pf
->flags
|= I40E_FLAG_RX_1BUF_ENABLED
;
7617 /* Set default ITR */
7618 pf
->rx_itr_default
= I40E_ITR_DYNAMIC
| I40E_ITR_RX_DEF
;
7619 pf
->tx_itr_default
= I40E_ITR_DYNAMIC
| I40E_ITR_TX_DEF
;
7621 /* Depending on PF configurations, it is possible that the RSS
7622 * maximum might end up larger than the available queues
7624 pf
->rss_size_max
= 0x1 << pf
->hw
.func_caps
.rss_table_entry_width
;
7626 pf
->rss_table_size
= pf
->hw
.func_caps
.rss_table_size
;
7627 pf
->rss_size_max
= min_t(int, pf
->rss_size_max
,
7628 pf
->hw
.func_caps
.num_tx_qp
);
7629 if (pf
->hw
.func_caps
.rss
) {
7630 pf
->flags
|= I40E_FLAG_RSS_ENABLED
;
7631 pf
->rss_size
= min_t(int, pf
->rss_size_max
, num_online_cpus());
7634 /* MFP mode enabled */
7635 if (pf
->hw
.func_caps
.npar_enable
|| pf
->hw
.func_caps
.mfp_mode_1
) {
7636 pf
->flags
|= I40E_FLAG_MFP_ENABLED
;
7637 dev_info(&pf
->pdev
->dev
, "MFP mode Enabled\n");
7638 if (i40e_get_npar_bw_setting(pf
))
7639 dev_warn(&pf
->pdev
->dev
,
7640 "Could not get NPAR bw settings\n");
7642 dev_info(&pf
->pdev
->dev
,
7643 "Min BW = %8.8x, Max BW = %8.8x\n",
7644 pf
->npar_min_bw
, pf
->npar_max_bw
);
7647 /* FW/NVM is not yet fixed in this regard */
7648 if ((pf
->hw
.func_caps
.fd_filters_guaranteed
> 0) ||
7649 (pf
->hw
.func_caps
.fd_filters_best_effort
> 0)) {
7650 pf
->flags
|= I40E_FLAG_FD_ATR_ENABLED
;
7651 pf
->atr_sample_rate
= I40E_DEFAULT_ATR_SAMPLE_RATE
;
7652 /* Setup a counter for fd_atr per PF */
7653 pf
->fd_atr_cnt_idx
= I40E_FD_ATR_STAT_IDX(pf
->hw
.pf_id
);
7654 if (!(pf
->flags
& I40E_FLAG_MFP_ENABLED
)) {
7655 pf
->flags
|= I40E_FLAG_FD_SB_ENABLED
;
7656 /* Setup a counter for fd_sb per PF */
7657 pf
->fd_sb_cnt_idx
= I40E_FD_SB_STAT_IDX(pf
->hw
.pf_id
);
7659 dev_info(&pf
->pdev
->dev
,
7660 "Flow Director Sideband mode Disabled in MFP mode\n");
7662 pf
->fdir_pf_filter_count
=
7663 pf
->hw
.func_caps
.fd_filters_guaranteed
;
7664 pf
->hw
.fdir_shared_filter_count
=
7665 pf
->hw
.func_caps
.fd_filters_best_effort
;
7668 if (pf
->hw
.func_caps
.vmdq
) {
7669 pf
->flags
|= I40E_FLAG_VMDQ_ENABLED
;
7670 pf
->num_vmdq_vsis
= I40E_DEFAULT_NUM_VMDQ_VSI
;
7671 pf
->num_vmdq_qps
= I40E_DEFAULT_QUEUES_PER_VMDQ
;
7675 err
= i40e_init_pf_fcoe(pf
);
7677 dev_info(&pf
->pdev
->dev
, "init_pf_fcoe failed: %d\n", err
);
7679 #endif /* I40E_FCOE */
7680 #ifdef CONFIG_PCI_IOV
7681 if (pf
->hw
.func_caps
.num_vfs
&& pf
->hw
.partition_id
== 1) {
7682 pf
->num_vf_qps
= I40E_DEFAULT_QUEUES_PER_VF
;
7683 pf
->flags
|= I40E_FLAG_SRIOV_ENABLED
;
7684 pf
->num_req_vfs
= min_t(int,
7685 pf
->hw
.func_caps
.num_vfs
,
7688 #endif /* CONFIG_PCI_IOV */
7689 pf
->eeprom_version
= 0xDEAD;
7690 pf
->lan_veb
= I40E_NO_VEB
;
7691 pf
->lan_vsi
= I40E_NO_VSI
;
7693 /* set up queue assignment tracking */
7694 size
= sizeof(struct i40e_lump_tracking
)
7695 + (sizeof(u16
) * pf
->hw
.func_caps
.num_tx_qp
);
7696 pf
->qp_pile
= kzalloc(size
, GFP_KERNEL
);
7701 pf
->qp_pile
->num_entries
= pf
->hw
.func_caps
.num_tx_qp
;
7702 pf
->qp_pile
->search_hint
= 0;
7704 pf
->tx_timeout_recovery_level
= 1;
7706 mutex_init(&pf
->switch_mutex
);
7708 /* If NPAR is enabled nudge the Tx scheduler */
7709 if (pf
->hw
.func_caps
.npar_enable
&& (!i40e_get_npar_bw_setting(pf
)))
7710 i40e_set_npar_bw_setting(pf
);
7717 * i40e_set_ntuple - set the ntuple feature flag and take action
7718 * @pf: board private structure to initialize
7719 * @features: the feature set that the stack is suggesting
7721 * returns a bool to indicate if reset needs to happen
7723 bool i40e_set_ntuple(struct i40e_pf
*pf
, netdev_features_t features
)
7725 bool need_reset
= false;
7727 /* Check if Flow Director n-tuple support was enabled or disabled. If
7728 * the state changed, we need to reset.
7730 if (features
& NETIF_F_NTUPLE
) {
7731 /* Enable filters and mark for reset */
7732 if (!(pf
->flags
& I40E_FLAG_FD_SB_ENABLED
))
7734 pf
->flags
|= I40E_FLAG_FD_SB_ENABLED
;
7736 /* turn off filters, mark for reset and clear SW filter list */
7737 if (pf
->flags
& I40E_FLAG_FD_SB_ENABLED
) {
7739 i40e_fdir_filter_exit(pf
);
7741 pf
->flags
&= ~I40E_FLAG_FD_SB_ENABLED
;
7742 pf
->auto_disable_flags
&= ~I40E_FLAG_FD_SB_ENABLED
;
7743 /* reset fd counters */
7744 pf
->fd_add_err
= pf
->fd_atr_cnt
= pf
->fd_tcp_rule
= 0;
7745 pf
->fdir_pf_active_filters
= 0;
7746 pf
->flags
|= I40E_FLAG_FD_ATR_ENABLED
;
7747 dev_info(&pf
->pdev
->dev
, "ATR re-enabled.\n");
7748 /* if ATR was auto disabled it can be re-enabled. */
7749 if ((pf
->flags
& I40E_FLAG_FD_ATR_ENABLED
) &&
7750 (pf
->auto_disable_flags
& I40E_FLAG_FD_ATR_ENABLED
))
7751 pf
->auto_disable_flags
&= ~I40E_FLAG_FD_ATR_ENABLED
;
7757 * i40e_set_features - set the netdev feature flags
7758 * @netdev: ptr to the netdev being adjusted
7759 * @features: the feature set that the stack is suggesting
7761 static int i40e_set_features(struct net_device
*netdev
,
7762 netdev_features_t features
)
7764 struct i40e_netdev_priv
*np
= netdev_priv(netdev
);
7765 struct i40e_vsi
*vsi
= np
->vsi
;
7766 struct i40e_pf
*pf
= vsi
->back
;
7769 if (features
& NETIF_F_HW_VLAN_CTAG_RX
)
7770 i40e_vlan_stripping_enable(vsi
);
7772 i40e_vlan_stripping_disable(vsi
);
7774 need_reset
= i40e_set_ntuple(pf
, features
);
7777 i40e_do_reset(pf
, (1 << __I40E_PF_RESET_REQUESTED
));
7782 #ifdef CONFIG_I40E_VXLAN
7784 * i40e_get_vxlan_port_idx - Lookup a possibly offloaded for Rx UDP port
7785 * @pf: board private structure
7786 * @port: The UDP port to look up
7788 * Returns the index number or I40E_MAX_PF_UDP_OFFLOAD_PORTS if port not found
7790 static u8
i40e_get_vxlan_port_idx(struct i40e_pf
*pf
, __be16 port
)
7794 for (i
= 0; i
< I40E_MAX_PF_UDP_OFFLOAD_PORTS
; i
++) {
7795 if (pf
->vxlan_ports
[i
] == port
)
7803 * i40e_add_vxlan_port - Get notifications about VXLAN ports that come up
7804 * @netdev: This physical port's netdev
7805 * @sa_family: Socket Family that VXLAN is notifying us about
7806 * @port: New UDP port number that VXLAN started listening to
7808 static void i40e_add_vxlan_port(struct net_device
*netdev
,
7809 sa_family_t sa_family
, __be16 port
)
7811 struct i40e_netdev_priv
*np
= netdev_priv(netdev
);
7812 struct i40e_vsi
*vsi
= np
->vsi
;
7813 struct i40e_pf
*pf
= vsi
->back
;
7817 if (sa_family
== AF_INET6
)
7820 idx
= i40e_get_vxlan_port_idx(pf
, port
);
7822 /* Check if port already exists */
7823 if (idx
< I40E_MAX_PF_UDP_OFFLOAD_PORTS
) {
7824 netdev_info(netdev
, "Port %d already offloaded\n", ntohs(port
));
7828 /* Now check if there is space to add the new port */
7829 next_idx
= i40e_get_vxlan_port_idx(pf
, 0);
7831 if (next_idx
== I40E_MAX_PF_UDP_OFFLOAD_PORTS
) {
7832 netdev_info(netdev
, "Maximum number of UDP ports reached, not adding port %d\n",
7837 /* New port: add it and mark its index in the bitmap */
7838 pf
->vxlan_ports
[next_idx
] = port
;
7839 pf
->pending_vxlan_bitmap
|= (1 << next_idx
);
7841 pf
->flags
|= I40E_FLAG_VXLAN_FILTER_SYNC
;
7845 * i40e_del_vxlan_port - Get notifications about VXLAN ports that go away
7846 * @netdev: This physical port's netdev
7847 * @sa_family: Socket Family that VXLAN is notifying us about
7848 * @port: UDP port number that VXLAN stopped listening to
7850 static void i40e_del_vxlan_port(struct net_device
*netdev
,
7851 sa_family_t sa_family
, __be16 port
)
7853 struct i40e_netdev_priv
*np
= netdev_priv(netdev
);
7854 struct i40e_vsi
*vsi
= np
->vsi
;
7855 struct i40e_pf
*pf
= vsi
->back
;
7858 if (sa_family
== AF_INET6
)
7861 idx
= i40e_get_vxlan_port_idx(pf
, port
);
7863 /* Check if port already exists */
7864 if (idx
< I40E_MAX_PF_UDP_OFFLOAD_PORTS
) {
7865 /* if port exists, set it to 0 (mark for deletion)
7866 * and make it pending
7868 pf
->vxlan_ports
[idx
] = 0;
7870 pf
->pending_vxlan_bitmap
|= (1 << idx
);
7872 pf
->flags
|= I40E_FLAG_VXLAN_FILTER_SYNC
;
7874 netdev_warn(netdev
, "Port %d was not found, not deleting\n",
7880 static int i40e_get_phys_port_id(struct net_device
*netdev
,
7881 struct netdev_phys_item_id
*ppid
)
7883 struct i40e_netdev_priv
*np
= netdev_priv(netdev
);
7884 struct i40e_pf
*pf
= np
->vsi
->back
;
7885 struct i40e_hw
*hw
= &pf
->hw
;
7887 if (!(pf
->flags
& I40E_FLAG_PORT_ID_VALID
))
7890 ppid
->id_len
= min_t(int, sizeof(hw
->mac
.port_addr
), sizeof(ppid
->id
));
7891 memcpy(ppid
->id
, hw
->mac
.port_addr
, ppid
->id_len
);
7897 * i40e_ndo_fdb_add - add an entry to the hardware database
7898 * @ndm: the input from the stack
7899 * @tb: pointer to array of nladdr (unused)
7900 * @dev: the net device pointer
7901 * @addr: the MAC address entry being added
7902 * @flags: instructions from stack about fdb operation
7904 static int i40e_ndo_fdb_add(struct ndmsg
*ndm
, struct nlattr
*tb
[],
7905 struct net_device
*dev
,
7906 const unsigned char *addr
, u16 vid
,
7909 struct i40e_netdev_priv
*np
= netdev_priv(dev
);
7910 struct i40e_pf
*pf
= np
->vsi
->back
;
7913 if (!(pf
->flags
& I40E_FLAG_SRIOV_ENABLED
))
7917 pr_info("%s: vlans aren't supported yet for dev_uc|mc_add()\n", dev
->name
);
7921 /* Hardware does not support aging addresses so if a
7922 * ndm_state is given only allow permanent addresses
7924 if (ndm
->ndm_state
&& !(ndm
->ndm_state
& NUD_PERMANENT
)) {
7925 netdev_info(dev
, "FDB only supports static addresses\n");
7929 if (is_unicast_ether_addr(addr
) || is_link_local_ether_addr(addr
))
7930 err
= dev_uc_add_excl(dev
, addr
);
7931 else if (is_multicast_ether_addr(addr
))
7932 err
= dev_mc_add_excl(dev
, addr
);
7936 /* Only return duplicate errors if NLM_F_EXCL is set */
7937 if (err
== -EEXIST
&& !(flags
& NLM_F_EXCL
))
7943 #ifdef HAVE_BRIDGE_ATTRIBS
7945 * i40e_ndo_bridge_setlink - Set the hardware bridge mode
7946 * @dev: the netdev being configured
7947 * @nlh: RTNL message
7949 * Inserts a new hardware bridge if not already created and
7950 * enables the bridging mode requested (VEB or VEPA). If the
7951 * hardware bridge has already been inserted and the request
7952 * is to change the mode then that requires a PF reset to
7953 * allow rebuild of the components with required hardware
7954 * bridge mode enabled.
7956 static int i40e_ndo_bridge_setlink(struct net_device
*dev
,
7957 struct nlmsghdr
*nlh
)
7959 struct i40e_netdev_priv
*np
= netdev_priv(dev
);
7960 struct i40e_vsi
*vsi
= np
->vsi
;
7961 struct i40e_pf
*pf
= vsi
->back
;
7962 struct i40e_veb
*veb
= NULL
;
7963 struct nlattr
*attr
, *br_spec
;
7966 /* Only for PF VSI for now */
7967 if (vsi
->seid
!= pf
->vsi
[pf
->lan_vsi
]->seid
)
7970 /* Find the HW bridge for PF VSI */
7971 for (i
= 0; i
< I40E_MAX_VEB
&& !veb
; i
++) {
7972 if (pf
->veb
[i
] && pf
->veb
[i
]->seid
== vsi
->uplink_seid
)
7976 br_spec
= nlmsg_find_attr(nlh
, sizeof(struct ifinfomsg
), IFLA_AF_SPEC
);
7978 nla_for_each_nested(attr
, br_spec
, rem
) {
7981 if (nla_type(attr
) != IFLA_BRIDGE_MODE
)
7984 mode
= nla_get_u16(attr
);
7985 if ((mode
!= BRIDGE_MODE_VEPA
) &&
7986 (mode
!= BRIDGE_MODE_VEB
))
7989 /* Insert a new HW bridge */
7991 veb
= i40e_veb_setup(pf
, 0, vsi
->uplink_seid
, vsi
->seid
,
7992 vsi
->tc_config
.enabled_tc
);
7994 veb
->bridge_mode
= mode
;
7995 i40e_config_bridge_mode(veb
);
7997 /* No Bridge HW offload available */
8001 } else if (mode
!= veb
->bridge_mode
) {
8002 /* Existing HW bridge but different mode needs reset */
8003 veb
->bridge_mode
= mode
;
8004 i40e_do_reset(pf
, (1 << __I40E_PF_RESET_REQUESTED
));
8013 * i40e_ndo_bridge_getlink - Get the hardware bridge mode
8016 * @seq: RTNL message seq #
8017 * @dev: the netdev being configured
8018 * @filter_mask: unused
8020 * Return the mode in which the hardware bridge is operating in
8023 #ifdef HAVE_BRIDGE_FILTER
8024 static int i40e_ndo_bridge_getlink(struct sk_buff
*skb
, u32 pid
, u32 seq
,
8025 struct net_device
*dev
,
8026 u32 __always_unused filter_mask
)
8028 static int i40e_ndo_bridge_getlink(struct sk_buff
*skb
, u32 pid
, u32 seq
,
8029 struct net_device
*dev
)
8030 #endif /* HAVE_BRIDGE_FILTER */
8032 struct i40e_netdev_priv
*np
= netdev_priv(dev
);
8033 struct i40e_vsi
*vsi
= np
->vsi
;
8034 struct i40e_pf
*pf
= vsi
->back
;
8035 struct i40e_veb
*veb
= NULL
;
8038 /* Only for PF VSI for now */
8039 if (vsi
->seid
!= pf
->vsi
[pf
->lan_vsi
]->seid
)
8042 /* Find the HW bridge for the PF VSI */
8043 for (i
= 0; i
< I40E_MAX_VEB
&& !veb
; i
++) {
8044 if (pf
->veb
[i
] && pf
->veb
[i
]->seid
== vsi
->uplink_seid
)
8051 return ndo_dflt_bridge_getlink(skb
, pid
, seq
, dev
, veb
->bridge_mode
);
8053 #endif /* HAVE_BRIDGE_ATTRIBS */
8055 static const struct net_device_ops i40e_netdev_ops
= {
8056 .ndo_open
= i40e_open
,
8057 .ndo_stop
= i40e_close
,
8058 .ndo_start_xmit
= i40e_lan_xmit_frame
,
8059 .ndo_get_stats64
= i40e_get_netdev_stats_struct
,
8060 .ndo_set_rx_mode
= i40e_set_rx_mode
,
8061 .ndo_validate_addr
= eth_validate_addr
,
8062 .ndo_set_mac_address
= i40e_set_mac
,
8063 .ndo_change_mtu
= i40e_change_mtu
,
8064 .ndo_do_ioctl
= i40e_ioctl
,
8065 .ndo_tx_timeout
= i40e_tx_timeout
,
8066 .ndo_vlan_rx_add_vid
= i40e_vlan_rx_add_vid
,
8067 .ndo_vlan_rx_kill_vid
= i40e_vlan_rx_kill_vid
,
8068 #ifdef CONFIG_NET_POLL_CONTROLLER
8069 .ndo_poll_controller
= i40e_netpoll
,
8071 .ndo_setup_tc
= i40e_setup_tc
,
8073 .ndo_fcoe_enable
= i40e_fcoe_enable
,
8074 .ndo_fcoe_disable
= i40e_fcoe_disable
,
8076 .ndo_set_features
= i40e_set_features
,
8077 .ndo_set_vf_mac
= i40e_ndo_set_vf_mac
,
8078 .ndo_set_vf_vlan
= i40e_ndo_set_vf_port_vlan
,
8079 .ndo_set_vf_rate
= i40e_ndo_set_vf_bw
,
8080 .ndo_get_vf_config
= i40e_ndo_get_vf_config
,
8081 .ndo_set_vf_link_state
= i40e_ndo_set_vf_link_state
,
8082 .ndo_set_vf_spoofchk
= i40e_ndo_set_vf_spoofchk
,
8083 #ifdef CONFIG_I40E_VXLAN
8084 .ndo_add_vxlan_port
= i40e_add_vxlan_port
,
8085 .ndo_del_vxlan_port
= i40e_del_vxlan_port
,
8087 .ndo_get_phys_port_id
= i40e_get_phys_port_id
,
8088 .ndo_fdb_add
= i40e_ndo_fdb_add
,
8089 #ifdef HAVE_BRIDGE_ATTRIBS
8090 .ndo_bridge_getlink
= i40e_ndo_bridge_getlink
,
8091 .ndo_bridge_setlink
= i40e_ndo_bridge_setlink
,
8092 #endif /* HAVE_BRIDGE_ATTRIBS */
8096 * i40e_config_netdev - Setup the netdev flags
8097 * @vsi: the VSI being configured
8099 * Returns 0 on success, negative value on failure
8101 static int i40e_config_netdev(struct i40e_vsi
*vsi
)
8103 u8 brdcast
[ETH_ALEN
] = {0xff, 0xff, 0xff, 0xff, 0xff, 0xff};
8104 struct i40e_pf
*pf
= vsi
->back
;
8105 struct i40e_hw
*hw
= &pf
->hw
;
8106 struct i40e_netdev_priv
*np
;
8107 struct net_device
*netdev
;
8108 u8 mac_addr
[ETH_ALEN
];
8111 etherdev_size
= sizeof(struct i40e_netdev_priv
);
8112 netdev
= alloc_etherdev_mq(etherdev_size
, vsi
->alloc_queue_pairs
);
8116 vsi
->netdev
= netdev
;
8117 np
= netdev_priv(netdev
);
8120 netdev
->hw_enc_features
|= NETIF_F_IP_CSUM
|
8121 NETIF_F_GSO_UDP_TUNNEL
|
8124 netdev
->features
= NETIF_F_SG
|
8128 NETIF_F_GSO_UDP_TUNNEL
|
8129 NETIF_F_HW_VLAN_CTAG_TX
|
8130 NETIF_F_HW_VLAN_CTAG_RX
|
8131 NETIF_F_HW_VLAN_CTAG_FILTER
|
8140 if (!(pf
->flags
& I40E_FLAG_MFP_ENABLED
))
8141 netdev
->features
|= NETIF_F_NTUPLE
;
8143 /* copy netdev features into list of user selectable features */
8144 netdev
->hw_features
|= netdev
->features
;
8146 if (vsi
->type
== I40E_VSI_MAIN
) {
8147 SET_NETDEV_DEV(netdev
, &pf
->pdev
->dev
);
8148 ether_addr_copy(mac_addr
, hw
->mac
.perm_addr
);
8149 /* The following steps are necessary to prevent reception
8150 * of tagged packets - some older NVM configurations load a
8151 * default a MAC-VLAN filter that accepts any tagged packet
8152 * which must be replaced by a normal filter.
8154 if (!i40e_rm_default_mac_filter(vsi
, mac_addr
))
8155 i40e_add_filter(vsi
, mac_addr
,
8156 I40E_VLAN_ANY
, false, true);
8158 /* relate the VSI_VMDQ name to the VSI_MAIN name */
8159 snprintf(netdev
->name
, IFNAMSIZ
, "%sv%%d",
8160 pf
->vsi
[pf
->lan_vsi
]->netdev
->name
);
8161 random_ether_addr(mac_addr
);
8162 i40e_add_filter(vsi
, mac_addr
, I40E_VLAN_ANY
, false, false);
8164 i40e_add_filter(vsi
, brdcast
, I40E_VLAN_ANY
, false, false);
8166 ether_addr_copy(netdev
->dev_addr
, mac_addr
);
8167 ether_addr_copy(netdev
->perm_addr
, mac_addr
);
8168 /* vlan gets same features (except vlan offload)
8169 * after any tweaks for specific VSI types
8171 netdev
->vlan_features
= netdev
->features
& ~(NETIF_F_HW_VLAN_CTAG_TX
|
8172 NETIF_F_HW_VLAN_CTAG_RX
|
8173 NETIF_F_HW_VLAN_CTAG_FILTER
);
8174 netdev
->priv_flags
|= IFF_UNICAST_FLT
;
8175 netdev
->priv_flags
|= IFF_SUPP_NOFCS
;
8176 /* Setup netdev TC information */
8177 i40e_vsi_config_netdev_tc(vsi
, vsi
->tc_config
.enabled_tc
);
8179 netdev
->netdev_ops
= &i40e_netdev_ops
;
8180 netdev
->watchdog_timeo
= 5 * HZ
;
8181 i40e_set_ethtool_ops(netdev
);
8183 i40e_fcoe_config_netdev(netdev
, vsi
);
8190 * i40e_vsi_delete - Delete a VSI from the switch
8191 * @vsi: the VSI being removed
8193 * Returns 0 on success, negative value on failure
8195 static void i40e_vsi_delete(struct i40e_vsi
*vsi
)
8197 /* remove default VSI is not allowed */
8198 if (vsi
== vsi
->back
->vsi
[vsi
->back
->lan_vsi
])
8201 i40e_aq_delete_element(&vsi
->back
->hw
, vsi
->seid
, NULL
);
8205 * i40e_is_vsi_uplink_mode_veb - Check if the VSI's uplink bridge mode is VEB
8206 * @vsi: the VSI being queried
8208 * Returns 1 if HW bridge mode is VEB and return 0 in case of VEPA mode
8210 int i40e_is_vsi_uplink_mode_veb(struct i40e_vsi
*vsi
)
8212 struct i40e_veb
*veb
;
8213 struct i40e_pf
*pf
= vsi
->back
;
8215 /* Uplink is not a bridge so default to VEB */
8216 if (vsi
->veb_idx
== I40E_NO_VEB
)
8219 veb
= pf
->veb
[vsi
->veb_idx
];
8220 /* Uplink is a bridge in VEPA mode */
8221 if (veb
&& (veb
->bridge_mode
& BRIDGE_MODE_VEPA
))
8224 /* Uplink is a bridge in VEB mode */
8229 * i40e_add_vsi - Add a VSI to the switch
8230 * @vsi: the VSI being configured
8232 * This initializes a VSI context depending on the VSI type to be added and
8233 * passes it down to the add_vsi aq command.
8235 static int i40e_add_vsi(struct i40e_vsi
*vsi
)
8238 struct i40e_mac_filter
*f
, *ftmp
;
8239 struct i40e_pf
*pf
= vsi
->back
;
8240 struct i40e_hw
*hw
= &pf
->hw
;
8241 struct i40e_vsi_context ctxt
;
8242 u8 enabled_tc
= 0x1; /* TC0 enabled */
8245 memset(&ctxt
, 0, sizeof(ctxt
));
8246 switch (vsi
->type
) {
8248 /* The PF's main VSI is already setup as part of the
8249 * device initialization, so we'll not bother with
8250 * the add_vsi call, but we will retrieve the current
8253 ctxt
.seid
= pf
->main_vsi_seid
;
8254 ctxt
.pf_num
= pf
->hw
.pf_id
;
8256 ret
= i40e_aq_get_vsi_params(&pf
->hw
, &ctxt
, NULL
);
8257 ctxt
.flags
= I40E_AQ_VSI_TYPE_PF
;
8259 dev_info(&pf
->pdev
->dev
,
8260 "couldn't get PF vsi config, err %d, aq_err %d\n",
8261 ret
, pf
->hw
.aq
.asq_last_status
);
8264 memcpy(&vsi
->info
, &ctxt
.info
, sizeof(ctxt
.info
));
8265 vsi
->info
.valid_sections
= 0;
8267 vsi
->seid
= ctxt
.seid
;
8268 vsi
->id
= ctxt
.vsi_number
;
8270 enabled_tc
= i40e_pf_get_tc_map(pf
);
8272 /* MFP mode setup queue map and update VSI */
8273 if ((pf
->flags
& I40E_FLAG_MFP_ENABLED
) &&
8274 !(pf
->hw
.func_caps
.iscsi
)) { /* NIC type PF */
8275 memset(&ctxt
, 0, sizeof(ctxt
));
8276 ctxt
.seid
= pf
->main_vsi_seid
;
8277 ctxt
.pf_num
= pf
->hw
.pf_id
;
8279 i40e_vsi_setup_queue_map(vsi
, &ctxt
, enabled_tc
, false);
8280 ret
= i40e_aq_update_vsi_params(hw
, &ctxt
, NULL
);
8282 dev_info(&pf
->pdev
->dev
,
8283 "update vsi failed, aq_err=%d\n",
8284 pf
->hw
.aq
.asq_last_status
);
8288 /* update the local VSI info queue map */
8289 i40e_vsi_update_queue_map(vsi
, &ctxt
);
8290 vsi
->info
.valid_sections
= 0;
8292 /* Default/Main VSI is only enabled for TC0
8293 * reconfigure it to enable all TCs that are
8294 * available on the port in SFP mode.
8295 * For MFP case the iSCSI PF would use this
8296 * flow to enable LAN+iSCSI TC.
8298 ret
= i40e_vsi_config_tc(vsi
, enabled_tc
);
8300 dev_info(&pf
->pdev
->dev
,
8301 "failed to configure TCs for main VSI tc_map 0x%08x, err %d, aq_err %d\n",
8303 pf
->hw
.aq
.asq_last_status
);
8310 ctxt
.pf_num
= hw
->pf_id
;
8312 ctxt
.uplink_seid
= vsi
->uplink_seid
;
8313 ctxt
.connection_type
= I40E_AQ_VSI_CONN_TYPE_NORMAL
;
8314 ctxt
.flags
= I40E_AQ_VSI_TYPE_PF
;
8315 if (i40e_is_vsi_uplink_mode_veb(vsi
)) {
8316 ctxt
.info
.valid_sections
|=
8317 cpu_to_le16(I40E_AQ_VSI_PROP_SWITCH_VALID
);
8318 ctxt
.info
.switch_id
=
8319 cpu_to_le16(I40E_AQ_VSI_SW_ID_FLAG_ALLOW_LB
);
8321 i40e_vsi_setup_queue_map(vsi
, &ctxt
, enabled_tc
, true);
8324 case I40E_VSI_VMDQ2
:
8325 ctxt
.pf_num
= hw
->pf_id
;
8327 ctxt
.uplink_seid
= vsi
->uplink_seid
;
8328 ctxt
.connection_type
= I40E_AQ_VSI_CONN_TYPE_NORMAL
;
8329 ctxt
.flags
= I40E_AQ_VSI_TYPE_VMDQ2
;
8331 /* This VSI is connected to VEB so the switch_id
8332 * should be set to zero by default.
8334 if (i40e_is_vsi_uplink_mode_veb(vsi
)) {
8335 ctxt
.info
.valid_sections
|=
8336 cpu_to_le16(I40E_AQ_VSI_PROP_SWITCH_VALID
);
8337 ctxt
.info
.switch_id
=
8338 cpu_to_le16(I40E_AQ_VSI_SW_ID_FLAG_ALLOW_LB
);
8341 /* Setup the VSI tx/rx queue map for TC0 only for now */
8342 i40e_vsi_setup_queue_map(vsi
, &ctxt
, enabled_tc
, true);
8345 case I40E_VSI_SRIOV
:
8346 ctxt
.pf_num
= hw
->pf_id
;
8347 ctxt
.vf_num
= vsi
->vf_id
+ hw
->func_caps
.vf_base_id
;
8348 ctxt
.uplink_seid
= vsi
->uplink_seid
;
8349 ctxt
.connection_type
= I40E_AQ_VSI_CONN_TYPE_NORMAL
;
8350 ctxt
.flags
= I40E_AQ_VSI_TYPE_VF
;
8352 /* This VSI is connected to VEB so the switch_id
8353 * should be set to zero by default.
8355 if (i40e_is_vsi_uplink_mode_veb(vsi
)) {
8356 ctxt
.info
.valid_sections
|=
8357 cpu_to_le16(I40E_AQ_VSI_PROP_SWITCH_VALID
);
8358 ctxt
.info
.switch_id
=
8359 cpu_to_le16(I40E_AQ_VSI_SW_ID_FLAG_ALLOW_LB
);
8362 ctxt
.info
.valid_sections
|= cpu_to_le16(I40E_AQ_VSI_PROP_VLAN_VALID
);
8363 ctxt
.info
.port_vlan_flags
|= I40E_AQ_VSI_PVLAN_MODE_ALL
;
8364 if (pf
->vf
[vsi
->vf_id
].spoofchk
) {
8365 ctxt
.info
.valid_sections
|=
8366 cpu_to_le16(I40E_AQ_VSI_PROP_SECURITY_VALID
);
8367 ctxt
.info
.sec_flags
|=
8368 (I40E_AQ_VSI_SEC_FLAG_ENABLE_VLAN_CHK
|
8369 I40E_AQ_VSI_SEC_FLAG_ENABLE_MAC_CHK
);
8371 /* Setup the VSI tx/rx queue map for TC0 only for now */
8372 i40e_vsi_setup_queue_map(vsi
, &ctxt
, enabled_tc
, true);
8377 ret
= i40e_fcoe_vsi_init(vsi
, &ctxt
);
8379 dev_info(&pf
->pdev
->dev
, "failed to initialize FCoE VSI\n");
8384 #endif /* I40E_FCOE */
8389 if (vsi
->type
!= I40E_VSI_MAIN
) {
8390 ret
= i40e_aq_add_vsi(hw
, &ctxt
, NULL
);
8392 dev_info(&vsi
->back
->pdev
->dev
,
8393 "add vsi failed, aq_err=%d\n",
8394 vsi
->back
->hw
.aq
.asq_last_status
);
8398 memcpy(&vsi
->info
, &ctxt
.info
, sizeof(ctxt
.info
));
8399 vsi
->info
.valid_sections
= 0;
8400 vsi
->seid
= ctxt
.seid
;
8401 vsi
->id
= ctxt
.vsi_number
;
8404 /* If macvlan filters already exist, force them to get loaded */
8405 list_for_each_entry_safe(f
, ftmp
, &vsi
->mac_filter_list
, list
) {
8409 if (f
->is_laa
&& vsi
->type
== I40E_VSI_MAIN
) {
8410 struct i40e_aqc_remove_macvlan_element_data element
;
8412 memset(&element
, 0, sizeof(element
));
8413 ether_addr_copy(element
.mac_addr
, f
->macaddr
);
8414 element
.flags
= I40E_AQC_MACVLAN_DEL_PERFECT_MATCH
;
8415 ret
= i40e_aq_remove_macvlan(hw
, vsi
->seid
,
8418 /* some older FW has a different default */
8420 I40E_AQC_MACVLAN_DEL_IGNORE_VLAN
;
8421 i40e_aq_remove_macvlan(hw
, vsi
->seid
,
8425 i40e_aq_mac_address_write(hw
,
8426 I40E_AQC_WRITE_TYPE_LAA_WOL
,
8431 vsi
->flags
|= I40E_VSI_FLAG_FILTER_CHANGED
;
8432 pf
->flags
|= I40E_FLAG_FILTER_SYNC
;
8435 /* Update VSI BW information */
8436 ret
= i40e_vsi_get_bw_info(vsi
);
8438 dev_info(&pf
->pdev
->dev
,
8439 "couldn't get vsi bw info, err %d, aq_err %d\n",
8440 ret
, pf
->hw
.aq
.asq_last_status
);
8441 /* VSI is already added so not tearing that up */
8450 * i40e_vsi_release - Delete a VSI and free its resources
8451 * @vsi: the VSI being removed
8453 * Returns 0 on success or < 0 on error
8455 int i40e_vsi_release(struct i40e_vsi
*vsi
)
8457 struct i40e_mac_filter
*f
, *ftmp
;
8458 struct i40e_veb
*veb
= NULL
;
8465 /* release of a VEB-owner or last VSI is not allowed */
8466 if (vsi
->flags
& I40E_VSI_FLAG_VEB_OWNER
) {
8467 dev_info(&pf
->pdev
->dev
, "VSI %d has existing VEB %d\n",
8468 vsi
->seid
, vsi
->uplink_seid
);
8471 if (vsi
== pf
->vsi
[pf
->lan_vsi
] &&
8472 !test_bit(__I40E_DOWN
, &pf
->state
)) {
8473 dev_info(&pf
->pdev
->dev
, "Can't remove PF VSI\n");
8477 uplink_seid
= vsi
->uplink_seid
;
8478 if (vsi
->type
!= I40E_VSI_SRIOV
) {
8479 if (vsi
->netdev_registered
) {
8480 vsi
->netdev_registered
= false;
8482 /* results in a call to i40e_close() */
8483 unregister_netdev(vsi
->netdev
);
8486 i40e_vsi_close(vsi
);
8488 i40e_vsi_disable_irq(vsi
);
8491 list_for_each_entry_safe(f
, ftmp
, &vsi
->mac_filter_list
, list
)
8492 i40e_del_filter(vsi
, f
->macaddr
, f
->vlan
,
8493 f
->is_vf
, f
->is_netdev
);
8494 i40e_sync_vsi_filters(vsi
);
8496 i40e_vsi_delete(vsi
);
8497 i40e_vsi_free_q_vectors(vsi
);
8499 free_netdev(vsi
->netdev
);
8502 i40e_vsi_clear_rings(vsi
);
8503 i40e_vsi_clear(vsi
);
8505 /* If this was the last thing on the VEB, except for the
8506 * controlling VSI, remove the VEB, which puts the controlling
8507 * VSI onto the next level down in the switch.
8509 * Well, okay, there's one more exception here: don't remove
8510 * the orphan VEBs yet. We'll wait for an explicit remove request
8511 * from up the network stack.
8513 for (n
= 0, i
= 0; i
< pf
->num_alloc_vsi
; i
++) {
8515 pf
->vsi
[i
]->uplink_seid
== uplink_seid
&&
8516 (pf
->vsi
[i
]->flags
& I40E_VSI_FLAG_VEB_OWNER
) == 0) {
8517 n
++; /* count the VSIs */
8520 for (i
= 0; i
< I40E_MAX_VEB
; i
++) {
8523 if (pf
->veb
[i
]->uplink_seid
== uplink_seid
)
8524 n
++; /* count the VEBs */
8525 if (pf
->veb
[i
]->seid
== uplink_seid
)
8528 if (n
== 0 && veb
&& veb
->uplink_seid
!= 0)
8529 i40e_veb_release(veb
);
8535 * i40e_vsi_setup_vectors - Set up the q_vectors for the given VSI
8536 * @vsi: ptr to the VSI
8538 * This should only be called after i40e_vsi_mem_alloc() which allocates the
8539 * corresponding SW VSI structure and initializes num_queue_pairs for the
8540 * newly allocated VSI.
8542 * Returns 0 on success or negative on failure
8544 static int i40e_vsi_setup_vectors(struct i40e_vsi
*vsi
)
8547 struct i40e_pf
*pf
= vsi
->back
;
8549 if (vsi
->q_vectors
[0]) {
8550 dev_info(&pf
->pdev
->dev
, "VSI %d has existing q_vectors\n",
8555 if (vsi
->base_vector
) {
8556 dev_info(&pf
->pdev
->dev
, "VSI %d has non-zero base vector %d\n",
8557 vsi
->seid
, vsi
->base_vector
);
8561 ret
= i40e_vsi_alloc_q_vectors(vsi
);
8563 dev_info(&pf
->pdev
->dev
,
8564 "failed to allocate %d q_vector for VSI %d, ret=%d\n",
8565 vsi
->num_q_vectors
, vsi
->seid
, ret
);
8566 vsi
->num_q_vectors
= 0;
8567 goto vector_setup_out
;
8570 if (vsi
->num_q_vectors
)
8571 vsi
->base_vector
= i40e_get_lump(pf
, pf
->irq_pile
,
8572 vsi
->num_q_vectors
, vsi
->idx
);
8573 if (vsi
->base_vector
< 0) {
8574 dev_info(&pf
->pdev
->dev
,
8575 "failed to get tracking for %d vectors for VSI %d, err=%d\n",
8576 vsi
->num_q_vectors
, vsi
->seid
, vsi
->base_vector
);
8577 i40e_vsi_free_q_vectors(vsi
);
8579 goto vector_setup_out
;
8587 * i40e_vsi_reinit_setup - return and reallocate resources for a VSI
8588 * @vsi: pointer to the vsi.
8590 * This re-allocates a vsi's queue resources.
8592 * Returns pointer to the successfully allocated and configured VSI sw struct
8593 * on success, otherwise returns NULL on failure.
8595 static struct i40e_vsi
*i40e_vsi_reinit_setup(struct i40e_vsi
*vsi
)
8597 struct i40e_pf
*pf
= vsi
->back
;
8601 i40e_put_lump(pf
->qp_pile
, vsi
->base_queue
, vsi
->idx
);
8602 i40e_vsi_clear_rings(vsi
);
8604 i40e_vsi_free_arrays(vsi
, false);
8605 i40e_set_num_rings_in_vsi(vsi
);
8606 ret
= i40e_vsi_alloc_arrays(vsi
, false);
8610 ret
= i40e_get_lump(pf
, pf
->qp_pile
, vsi
->alloc_queue_pairs
, vsi
->idx
);
8612 dev_info(&pf
->pdev
->dev
,
8613 "failed to get tracking for %d queues for VSI %d err=%d\n",
8614 vsi
->alloc_queue_pairs
, vsi
->seid
, ret
);
8617 vsi
->base_queue
= ret
;
8619 /* Update the FW view of the VSI. Force a reset of TC and queue
8620 * layout configurations.
8622 enabled_tc
= pf
->vsi
[pf
->lan_vsi
]->tc_config
.enabled_tc
;
8623 pf
->vsi
[pf
->lan_vsi
]->tc_config
.enabled_tc
= 0;
8624 pf
->vsi
[pf
->lan_vsi
]->seid
= pf
->main_vsi_seid
;
8625 i40e_vsi_config_tc(pf
->vsi
[pf
->lan_vsi
], enabled_tc
);
8627 /* assign it some queues */
8628 ret
= i40e_alloc_rings(vsi
);
8632 /* map all of the rings to the q_vectors */
8633 i40e_vsi_map_rings_to_vectors(vsi
);
8637 i40e_vsi_free_q_vectors(vsi
);
8638 if (vsi
->netdev_registered
) {
8639 vsi
->netdev_registered
= false;
8640 unregister_netdev(vsi
->netdev
);
8641 free_netdev(vsi
->netdev
);
8644 i40e_aq_delete_element(&pf
->hw
, vsi
->seid
, NULL
);
8646 i40e_vsi_clear(vsi
);
8651 * i40e_vsi_setup - Set up a VSI by a given type
8652 * @pf: board private structure
8654 * @uplink_seid: the switch element to link to
8655 * @param1: usage depends upon VSI type. For VF types, indicates VF id
8657 * This allocates the sw VSI structure and its queue resources, then add a VSI
8658 * to the identified VEB.
8660 * Returns pointer to the successfully allocated and configure VSI sw struct on
8661 * success, otherwise returns NULL on failure.
8663 struct i40e_vsi
*i40e_vsi_setup(struct i40e_pf
*pf
, u8 type
,
8664 u16 uplink_seid
, u32 param1
)
8666 struct i40e_vsi
*vsi
= NULL
;
8667 struct i40e_veb
*veb
= NULL
;
8671 /* The requested uplink_seid must be either
8672 * - the PF's port seid
8673 * no VEB is needed because this is the PF
8674 * or this is a Flow Director special case VSI
8675 * - seid of an existing VEB
8676 * - seid of a VSI that owns an existing VEB
8677 * - seid of a VSI that doesn't own a VEB
8678 * a new VEB is created and the VSI becomes the owner
8679 * - seid of the PF VSI, which is what creates the first VEB
8680 * this is a special case of the previous
8682 * Find which uplink_seid we were given and create a new VEB if needed
8684 for (i
= 0; i
< I40E_MAX_VEB
; i
++) {
8685 if (pf
->veb
[i
] && pf
->veb
[i
]->seid
== uplink_seid
) {
8691 if (!veb
&& uplink_seid
!= pf
->mac_seid
) {
8693 for (i
= 0; i
< pf
->num_alloc_vsi
; i
++) {
8694 if (pf
->vsi
[i
] && pf
->vsi
[i
]->seid
== uplink_seid
) {
8700 dev_info(&pf
->pdev
->dev
, "no such uplink_seid %d\n",
8705 if (vsi
->uplink_seid
== pf
->mac_seid
)
8706 veb
= i40e_veb_setup(pf
, 0, pf
->mac_seid
, vsi
->seid
,
8707 vsi
->tc_config
.enabled_tc
);
8708 else if ((vsi
->flags
& I40E_VSI_FLAG_VEB_OWNER
) == 0)
8709 veb
= i40e_veb_setup(pf
, 0, vsi
->uplink_seid
, vsi
->seid
,
8710 vsi
->tc_config
.enabled_tc
);
8712 if (vsi
->seid
!= pf
->vsi
[pf
->lan_vsi
]->seid
) {
8713 dev_info(&vsi
->back
->pdev
->dev
,
8714 "%s: New VSI creation error, uplink seid of LAN VSI expected.\n",
8718 i40e_config_bridge_mode(veb
);
8720 for (i
= 0; i
< I40E_MAX_VEB
&& !veb
; i
++) {
8721 if (pf
->veb
[i
] && pf
->veb
[i
]->seid
== vsi
->uplink_seid
)
8725 dev_info(&pf
->pdev
->dev
, "couldn't add VEB\n");
8729 vsi
->flags
|= I40E_VSI_FLAG_VEB_OWNER
;
8730 uplink_seid
= veb
->seid
;
8733 /* get vsi sw struct */
8734 v_idx
= i40e_vsi_mem_alloc(pf
, type
);
8737 vsi
= pf
->vsi
[v_idx
];
8741 vsi
->veb_idx
= (veb
? veb
->idx
: I40E_NO_VEB
);
8743 if (type
== I40E_VSI_MAIN
)
8744 pf
->lan_vsi
= v_idx
;
8745 else if (type
== I40E_VSI_SRIOV
)
8746 vsi
->vf_id
= param1
;
8747 /* assign it some queues */
8748 ret
= i40e_get_lump(pf
, pf
->qp_pile
, vsi
->alloc_queue_pairs
,
8751 dev_info(&pf
->pdev
->dev
,
8752 "failed to get tracking for %d queues for VSI %d err=%d\n",
8753 vsi
->alloc_queue_pairs
, vsi
->seid
, ret
);
8756 vsi
->base_queue
= ret
;
8758 /* get a VSI from the hardware */
8759 vsi
->uplink_seid
= uplink_seid
;
8760 ret
= i40e_add_vsi(vsi
);
8764 switch (vsi
->type
) {
8765 /* setup the netdev if needed */
8767 case I40E_VSI_VMDQ2
:
8769 ret
= i40e_config_netdev(vsi
);
8772 ret
= register_netdev(vsi
->netdev
);
8775 vsi
->netdev_registered
= true;
8776 netif_carrier_off(vsi
->netdev
);
8777 #ifdef CONFIG_I40E_DCB
8778 /* Setup DCB netlink interface */
8779 i40e_dcbnl_setup(vsi
);
8780 #endif /* CONFIG_I40E_DCB */
8784 /* set up vectors and rings if needed */
8785 ret
= i40e_vsi_setup_vectors(vsi
);
8789 ret
= i40e_alloc_rings(vsi
);
8793 /* map all of the rings to the q_vectors */
8794 i40e_vsi_map_rings_to_vectors(vsi
);
8796 i40e_vsi_reset_stats(vsi
);
8800 /* no netdev or rings for the other VSI types */
8807 i40e_vsi_free_q_vectors(vsi
);
8809 if (vsi
->netdev_registered
) {
8810 vsi
->netdev_registered
= false;
8811 unregister_netdev(vsi
->netdev
);
8812 free_netdev(vsi
->netdev
);
8816 i40e_aq_delete_element(&pf
->hw
, vsi
->seid
, NULL
);
8818 i40e_vsi_clear(vsi
);
8824 * i40e_veb_get_bw_info - Query VEB BW information
8825 * @veb: the veb to query
8827 * Query the Tx scheduler BW configuration data for given VEB
8829 static int i40e_veb_get_bw_info(struct i40e_veb
*veb
)
8831 struct i40e_aqc_query_switching_comp_ets_config_resp ets_data
;
8832 struct i40e_aqc_query_switching_comp_bw_config_resp bw_data
;
8833 struct i40e_pf
*pf
= veb
->pf
;
8834 struct i40e_hw
*hw
= &pf
->hw
;
8839 ret
= i40e_aq_query_switch_comp_bw_config(hw
, veb
->seid
,
8842 dev_info(&pf
->pdev
->dev
,
8843 "query veb bw config failed, aq_err=%d\n",
8844 hw
->aq
.asq_last_status
);
8848 ret
= i40e_aq_query_switch_comp_ets_config(hw
, veb
->seid
,
8851 dev_info(&pf
->pdev
->dev
,
8852 "query veb bw ets config failed, aq_err=%d\n",
8853 hw
->aq
.asq_last_status
);
8857 veb
->bw_limit
= le16_to_cpu(ets_data
.port_bw_limit
);
8858 veb
->bw_max_quanta
= ets_data
.tc_bw_max
;
8859 veb
->is_abs_credits
= bw_data
.absolute_credits_enable
;
8860 veb
->enabled_tc
= ets_data
.tc_valid_bits
;
8861 tc_bw_max
= le16_to_cpu(bw_data
.tc_bw_max
[0]) |
8862 (le16_to_cpu(bw_data
.tc_bw_max
[1]) << 16);
8863 for (i
= 0; i
< I40E_MAX_TRAFFIC_CLASS
; i
++) {
8864 veb
->bw_tc_share_credits
[i
] = bw_data
.tc_bw_share_credits
[i
];
8865 veb
->bw_tc_limit_credits
[i
] =
8866 le16_to_cpu(bw_data
.tc_bw_limits
[i
]);
8867 veb
->bw_tc_max_quanta
[i
] = ((tc_bw_max
>> (i
*4)) & 0x7);
8875 * i40e_veb_mem_alloc - Allocates the next available struct veb in the PF
8876 * @pf: board private structure
8878 * On error: returns error code (negative)
8879 * On success: returns vsi index in PF (positive)
8881 static int i40e_veb_mem_alloc(struct i40e_pf
*pf
)
8884 struct i40e_veb
*veb
;
8887 /* Need to protect the allocation of switch elements at the PF level */
8888 mutex_lock(&pf
->switch_mutex
);
8890 /* VEB list may be fragmented if VEB creation/destruction has
8891 * been happening. We can afford to do a quick scan to look
8892 * for any free slots in the list.
8894 * find next empty veb slot, looping back around if necessary
8897 while ((i
< I40E_MAX_VEB
) && (pf
->veb
[i
] != NULL
))
8899 if (i
>= I40E_MAX_VEB
) {
8901 goto err_alloc_veb
; /* out of VEB slots! */
8904 veb
= kzalloc(sizeof(*veb
), GFP_KERNEL
);
8911 veb
->enabled_tc
= 1;
8916 mutex_unlock(&pf
->switch_mutex
);
8921 * i40e_switch_branch_release - Delete a branch of the switch tree
8922 * @branch: where to start deleting
8924 * This uses recursion to find the tips of the branch to be
8925 * removed, deleting until we get back to and can delete this VEB.
8927 static void i40e_switch_branch_release(struct i40e_veb
*branch
)
8929 struct i40e_pf
*pf
= branch
->pf
;
8930 u16 branch_seid
= branch
->seid
;
8931 u16 veb_idx
= branch
->idx
;
8934 /* release any VEBs on this VEB - RECURSION */
8935 for (i
= 0; i
< I40E_MAX_VEB
; i
++) {
8938 if (pf
->veb
[i
]->uplink_seid
== branch
->seid
)
8939 i40e_switch_branch_release(pf
->veb
[i
]);
8942 /* Release the VSIs on this VEB, but not the owner VSI.
8944 * NOTE: Removing the last VSI on a VEB has the SIDE EFFECT of removing
8945 * the VEB itself, so don't use (*branch) after this loop.
8947 for (i
= 0; i
< pf
->num_alloc_vsi
; i
++) {
8950 if (pf
->vsi
[i
]->uplink_seid
== branch_seid
&&
8951 (pf
->vsi
[i
]->flags
& I40E_VSI_FLAG_VEB_OWNER
) == 0) {
8952 i40e_vsi_release(pf
->vsi
[i
]);
8956 /* There's one corner case where the VEB might not have been
8957 * removed, so double check it here and remove it if needed.
8958 * This case happens if the veb was created from the debugfs
8959 * commands and no VSIs were added to it.
8961 if (pf
->veb
[veb_idx
])
8962 i40e_veb_release(pf
->veb
[veb_idx
]);
8966 * i40e_veb_clear - remove veb struct
8967 * @veb: the veb to remove
8969 static void i40e_veb_clear(struct i40e_veb
*veb
)
8975 struct i40e_pf
*pf
= veb
->pf
;
8977 mutex_lock(&pf
->switch_mutex
);
8978 if (pf
->veb
[veb
->idx
] == veb
)
8979 pf
->veb
[veb
->idx
] = NULL
;
8980 mutex_unlock(&pf
->switch_mutex
);
8987 * i40e_veb_release - Delete a VEB and free its resources
8988 * @veb: the VEB being removed
8990 void i40e_veb_release(struct i40e_veb
*veb
)
8992 struct i40e_vsi
*vsi
= NULL
;
8998 /* find the remaining VSI and check for extras */
8999 for (i
= 0; i
< pf
->num_alloc_vsi
; i
++) {
9000 if (pf
->vsi
[i
] && pf
->vsi
[i
]->uplink_seid
== veb
->seid
) {
9006 dev_info(&pf
->pdev
->dev
,
9007 "can't remove VEB %d with %d VSIs left\n",
9012 /* move the remaining VSI to uplink veb */
9013 vsi
->flags
&= ~I40E_VSI_FLAG_VEB_OWNER
;
9014 if (veb
->uplink_seid
) {
9015 vsi
->uplink_seid
= veb
->uplink_seid
;
9016 if (veb
->uplink_seid
== pf
->mac_seid
)
9017 vsi
->veb_idx
= I40E_NO_VEB
;
9019 vsi
->veb_idx
= veb
->veb_idx
;
9022 vsi
->uplink_seid
= pf
->vsi
[pf
->lan_vsi
]->uplink_seid
;
9023 vsi
->veb_idx
= pf
->vsi
[pf
->lan_vsi
]->veb_idx
;
9026 i40e_aq_delete_element(&pf
->hw
, veb
->seid
, NULL
);
9027 i40e_veb_clear(veb
);
9031 * i40e_add_veb - create the VEB in the switch
9032 * @veb: the VEB to be instantiated
9033 * @vsi: the controlling VSI
9035 static int i40e_add_veb(struct i40e_veb
*veb
, struct i40e_vsi
*vsi
)
9037 bool is_default
= false;
9038 bool is_cloud
= false;
9041 /* get a VEB from the hardware */
9042 ret
= i40e_aq_add_veb(&veb
->pf
->hw
, veb
->uplink_seid
, vsi
->seid
,
9043 veb
->enabled_tc
, is_default
,
9044 is_cloud
, &veb
->seid
, NULL
);
9046 dev_info(&veb
->pf
->pdev
->dev
,
9047 "couldn't add VEB, err %d, aq_err %d\n",
9048 ret
, veb
->pf
->hw
.aq
.asq_last_status
);
9052 /* get statistics counter */
9053 ret
= i40e_aq_get_veb_parameters(&veb
->pf
->hw
, veb
->seid
, NULL
, NULL
,
9054 &veb
->stats_idx
, NULL
, NULL
, NULL
);
9056 dev_info(&veb
->pf
->pdev
->dev
,
9057 "couldn't get VEB statistics idx, err %d, aq_err %d\n",
9058 ret
, veb
->pf
->hw
.aq
.asq_last_status
);
9061 ret
= i40e_veb_get_bw_info(veb
);
9063 dev_info(&veb
->pf
->pdev
->dev
,
9064 "couldn't get VEB bw info, err %d, aq_err %d\n",
9065 ret
, veb
->pf
->hw
.aq
.asq_last_status
);
9066 i40e_aq_delete_element(&veb
->pf
->hw
, veb
->seid
, NULL
);
9070 vsi
->uplink_seid
= veb
->seid
;
9071 vsi
->veb_idx
= veb
->idx
;
9072 vsi
->flags
|= I40E_VSI_FLAG_VEB_OWNER
;
9078 * i40e_veb_setup - Set up a VEB
9079 * @pf: board private structure
9080 * @flags: VEB setup flags
9081 * @uplink_seid: the switch element to link to
9082 * @vsi_seid: the initial VSI seid
9083 * @enabled_tc: Enabled TC bit-map
9085 * This allocates the sw VEB structure and links it into the switch
9086 * It is possible and legal for this to be a duplicate of an already
9087 * existing VEB. It is also possible for both uplink and vsi seids
9088 * to be zero, in order to create a floating VEB.
9090 * Returns pointer to the successfully allocated VEB sw struct on
9091 * success, otherwise returns NULL on failure.
9093 struct i40e_veb
*i40e_veb_setup(struct i40e_pf
*pf
, u16 flags
,
9094 u16 uplink_seid
, u16 vsi_seid
,
9097 struct i40e_veb
*veb
, *uplink_veb
= NULL
;
9098 int vsi_idx
, veb_idx
;
9101 /* if one seid is 0, the other must be 0 to create a floating relay */
9102 if ((uplink_seid
== 0 || vsi_seid
== 0) &&
9103 (uplink_seid
+ vsi_seid
!= 0)) {
9104 dev_info(&pf
->pdev
->dev
,
9105 "one, not both seid's are 0: uplink=%d vsi=%d\n",
9106 uplink_seid
, vsi_seid
);
9110 /* make sure there is such a vsi and uplink */
9111 for (vsi_idx
= 0; vsi_idx
< pf
->num_alloc_vsi
; vsi_idx
++)
9112 if (pf
->vsi
[vsi_idx
] && pf
->vsi
[vsi_idx
]->seid
== vsi_seid
)
9114 if (vsi_idx
>= pf
->num_alloc_vsi
&& vsi_seid
!= 0) {
9115 dev_info(&pf
->pdev
->dev
, "vsi seid %d not found\n",
9120 if (uplink_seid
&& uplink_seid
!= pf
->mac_seid
) {
9121 for (veb_idx
= 0; veb_idx
< I40E_MAX_VEB
; veb_idx
++) {
9122 if (pf
->veb
[veb_idx
] &&
9123 pf
->veb
[veb_idx
]->seid
== uplink_seid
) {
9124 uplink_veb
= pf
->veb
[veb_idx
];
9129 dev_info(&pf
->pdev
->dev
,
9130 "uplink seid %d not found\n", uplink_seid
);
9135 /* get veb sw struct */
9136 veb_idx
= i40e_veb_mem_alloc(pf
);
9139 veb
= pf
->veb
[veb_idx
];
9141 veb
->uplink_seid
= uplink_seid
;
9142 veb
->veb_idx
= (uplink_veb
? uplink_veb
->idx
: I40E_NO_VEB
);
9143 veb
->enabled_tc
= (enabled_tc
? enabled_tc
: 0x1);
9145 /* create the VEB in the switch */
9146 ret
= i40e_add_veb(veb
, pf
->vsi
[vsi_idx
]);
9149 if (vsi_idx
== pf
->lan_vsi
)
9150 pf
->lan_veb
= veb
->idx
;
9155 i40e_veb_clear(veb
);
9161 * i40e_setup_pf_switch_element - set PF vars based on switch type
9162 * @pf: board private structure
9163 * @ele: element we are building info from
9164 * @num_reported: total number of elements
9165 * @printconfig: should we print the contents
9167 * helper function to assist in extracting a few useful SEID values.
9169 static void i40e_setup_pf_switch_element(struct i40e_pf
*pf
,
9170 struct i40e_aqc_switch_config_element_resp
*ele
,
9171 u16 num_reported
, bool printconfig
)
9173 u16 downlink_seid
= le16_to_cpu(ele
->downlink_seid
);
9174 u16 uplink_seid
= le16_to_cpu(ele
->uplink_seid
);
9175 u8 element_type
= ele
->element_type
;
9176 u16 seid
= le16_to_cpu(ele
->seid
);
9179 dev_info(&pf
->pdev
->dev
,
9180 "type=%d seid=%d uplink=%d downlink=%d\n",
9181 element_type
, seid
, uplink_seid
, downlink_seid
);
9183 switch (element_type
) {
9184 case I40E_SWITCH_ELEMENT_TYPE_MAC
:
9185 pf
->mac_seid
= seid
;
9187 case I40E_SWITCH_ELEMENT_TYPE_VEB
:
9189 if (uplink_seid
!= pf
->mac_seid
)
9191 if (pf
->lan_veb
== I40E_NO_VEB
) {
9194 /* find existing or else empty VEB */
9195 for (v
= 0; v
< I40E_MAX_VEB
; v
++) {
9196 if (pf
->veb
[v
] && (pf
->veb
[v
]->seid
== seid
)) {
9201 if (pf
->lan_veb
== I40E_NO_VEB
) {
9202 v
= i40e_veb_mem_alloc(pf
);
9209 pf
->veb
[pf
->lan_veb
]->seid
= seid
;
9210 pf
->veb
[pf
->lan_veb
]->uplink_seid
= pf
->mac_seid
;
9211 pf
->veb
[pf
->lan_veb
]->pf
= pf
;
9212 pf
->veb
[pf
->lan_veb
]->veb_idx
= I40E_NO_VEB
;
9214 case I40E_SWITCH_ELEMENT_TYPE_VSI
:
9215 if (num_reported
!= 1)
9217 /* This is immediately after a reset so we can assume this is
9220 pf
->mac_seid
= uplink_seid
;
9221 pf
->pf_seid
= downlink_seid
;
9222 pf
->main_vsi_seid
= seid
;
9224 dev_info(&pf
->pdev
->dev
,
9225 "pf_seid=%d main_vsi_seid=%d\n",
9226 pf
->pf_seid
, pf
->main_vsi_seid
);
9228 case I40E_SWITCH_ELEMENT_TYPE_PF
:
9229 case I40E_SWITCH_ELEMENT_TYPE_VF
:
9230 case I40E_SWITCH_ELEMENT_TYPE_EMP
:
9231 case I40E_SWITCH_ELEMENT_TYPE_BMC
:
9232 case I40E_SWITCH_ELEMENT_TYPE_PE
:
9233 case I40E_SWITCH_ELEMENT_TYPE_PA
:
9234 /* ignore these for now */
9237 dev_info(&pf
->pdev
->dev
, "unknown element type=%d seid=%d\n",
9238 element_type
, seid
);
9244 * i40e_fetch_switch_configuration - Get switch config from firmware
9245 * @pf: board private structure
9246 * @printconfig: should we print the contents
9248 * Get the current switch configuration from the device and
9249 * extract a few useful SEID values.
9251 int i40e_fetch_switch_configuration(struct i40e_pf
*pf
, bool printconfig
)
9253 struct i40e_aqc_get_switch_config_resp
*sw_config
;
9259 aq_buf
= kzalloc(I40E_AQ_LARGE_BUF
, GFP_KERNEL
);
9263 sw_config
= (struct i40e_aqc_get_switch_config_resp
*)aq_buf
;
9265 u16 num_reported
, num_total
;
9267 ret
= i40e_aq_get_switch_config(&pf
->hw
, sw_config
,
9271 dev_info(&pf
->pdev
->dev
,
9272 "get switch config failed %d aq_err=%x\n",
9273 ret
, pf
->hw
.aq
.asq_last_status
);
9278 num_reported
= le16_to_cpu(sw_config
->header
.num_reported
);
9279 num_total
= le16_to_cpu(sw_config
->header
.num_total
);
9282 dev_info(&pf
->pdev
->dev
,
9283 "header: %d reported %d total\n",
9284 num_reported
, num_total
);
9286 for (i
= 0; i
< num_reported
; i
++) {
9287 struct i40e_aqc_switch_config_element_resp
*ele
=
9288 &sw_config
->element
[i
];
9290 i40e_setup_pf_switch_element(pf
, ele
, num_reported
,
9293 } while (next_seid
!= 0);
9300 * i40e_setup_pf_switch - Setup the HW switch on startup or after reset
9301 * @pf: board private structure
9302 * @reinit: if the Main VSI needs to re-initialized.
9304 * Returns 0 on success, negative value on failure
9306 static int i40e_setup_pf_switch(struct i40e_pf
*pf
, bool reinit
)
9310 /* find out what's out there already */
9311 ret
= i40e_fetch_switch_configuration(pf
, false);
9313 dev_info(&pf
->pdev
->dev
,
9314 "couldn't fetch switch config, err %d, aq_err %d\n",
9315 ret
, pf
->hw
.aq
.asq_last_status
);
9318 i40e_pf_reset_stats(pf
);
9320 /* first time setup */
9321 if (pf
->lan_vsi
== I40E_NO_VSI
|| reinit
) {
9322 struct i40e_vsi
*vsi
= NULL
;
9325 /* Set up the PF VSI associated with the PF's main VSI
9326 * that is already in the HW switch
9328 if (pf
->lan_veb
!= I40E_NO_VEB
&& pf
->veb
[pf
->lan_veb
])
9329 uplink_seid
= pf
->veb
[pf
->lan_veb
]->seid
;
9331 uplink_seid
= pf
->mac_seid
;
9332 if (pf
->lan_vsi
== I40E_NO_VSI
)
9333 vsi
= i40e_vsi_setup(pf
, I40E_VSI_MAIN
, uplink_seid
, 0);
9335 vsi
= i40e_vsi_reinit_setup(pf
->vsi
[pf
->lan_vsi
]);
9337 dev_info(&pf
->pdev
->dev
, "setup of MAIN VSI failed\n");
9338 i40e_fdir_teardown(pf
);
9342 /* force a reset of TC and queue layout configurations */
9343 u8 enabled_tc
= pf
->vsi
[pf
->lan_vsi
]->tc_config
.enabled_tc
;
9344 pf
->vsi
[pf
->lan_vsi
]->tc_config
.enabled_tc
= 0;
9345 pf
->vsi
[pf
->lan_vsi
]->seid
= pf
->main_vsi_seid
;
9346 i40e_vsi_config_tc(pf
->vsi
[pf
->lan_vsi
], enabled_tc
);
9348 i40e_vlan_stripping_disable(pf
->vsi
[pf
->lan_vsi
]);
9350 i40e_fdir_sb_setup(pf
);
9352 /* Setup static PF queue filter control settings */
9353 ret
= i40e_setup_pf_filter_control(pf
);
9355 dev_info(&pf
->pdev
->dev
, "setup_pf_filter_control failed: %d\n",
9357 /* Failure here should not stop continuing other steps */
9360 /* enable RSS in the HW, even for only one queue, as the stack can use
9363 if ((pf
->flags
& I40E_FLAG_RSS_ENABLED
))
9364 i40e_config_rss(pf
);
9366 /* fill in link information and enable LSE reporting */
9367 i40e_aq_get_link_info(&pf
->hw
, true, NULL
, NULL
);
9368 i40e_link_event(pf
);
9370 /* Initialize user-specific link properties */
9371 pf
->fc_autoneg_status
= ((pf
->hw
.phy
.link_info
.an_info
&
9372 I40E_AQ_AN_COMPLETED
) ? true : false);
9380 * i40e_determine_queue_usage - Work out queue distribution
9381 * @pf: board private structure
9383 static void i40e_determine_queue_usage(struct i40e_pf
*pf
)
9387 pf
->num_lan_qps
= 0;
9389 pf
->num_fcoe_qps
= 0;
9392 /* Find the max queues to be put into basic use. We'll always be
9393 * using TC0, whether or not DCB is running, and TC0 will get the
9396 queues_left
= pf
->hw
.func_caps
.num_tx_qp
;
9398 if ((queues_left
== 1) ||
9399 !(pf
->flags
& I40E_FLAG_MSIX_ENABLED
)) {
9400 /* one qp for PF, no queues for anything else */
9402 pf
->rss_size
= pf
->num_lan_qps
= 1;
9404 /* make sure all the fancies are disabled */
9405 pf
->flags
&= ~(I40E_FLAG_RSS_ENABLED
|
9407 I40E_FLAG_FCOE_ENABLED
|
9409 I40E_FLAG_FD_SB_ENABLED
|
9410 I40E_FLAG_FD_ATR_ENABLED
|
9411 I40E_FLAG_DCB_CAPABLE
|
9412 I40E_FLAG_SRIOV_ENABLED
|
9413 I40E_FLAG_VMDQ_ENABLED
);
9414 } else if (!(pf
->flags
& (I40E_FLAG_RSS_ENABLED
|
9415 I40E_FLAG_FD_SB_ENABLED
|
9416 I40E_FLAG_FD_ATR_ENABLED
|
9417 I40E_FLAG_DCB_CAPABLE
))) {
9419 pf
->rss_size
= pf
->num_lan_qps
= 1;
9420 queues_left
-= pf
->num_lan_qps
;
9422 pf
->flags
&= ~(I40E_FLAG_RSS_ENABLED
|
9424 I40E_FLAG_FCOE_ENABLED
|
9426 I40E_FLAG_FD_SB_ENABLED
|
9427 I40E_FLAG_FD_ATR_ENABLED
|
9428 I40E_FLAG_DCB_ENABLED
|
9429 I40E_FLAG_VMDQ_ENABLED
);
9431 /* Not enough queues for all TCs */
9432 if ((pf
->flags
& I40E_FLAG_DCB_CAPABLE
) &&
9433 (queues_left
< I40E_MAX_TRAFFIC_CLASS
)) {
9434 pf
->flags
&= ~I40E_FLAG_DCB_CAPABLE
;
9435 dev_info(&pf
->pdev
->dev
, "not enough queues for DCB. DCB is disabled.\n");
9437 pf
->num_lan_qps
= max_t(int, pf
->rss_size_max
,
9439 pf
->num_lan_qps
= min_t(int, pf
->num_lan_qps
,
9440 pf
->hw
.func_caps
.num_tx_qp
);
9442 queues_left
-= pf
->num_lan_qps
;
9446 if (pf
->flags
& I40E_FLAG_FCOE_ENABLED
) {
9447 if (I40E_DEFAULT_FCOE
<= queues_left
) {
9448 pf
->num_fcoe_qps
= I40E_DEFAULT_FCOE
;
9449 } else if (I40E_MINIMUM_FCOE
<= queues_left
) {
9450 pf
->num_fcoe_qps
= I40E_MINIMUM_FCOE
;
9452 pf
->num_fcoe_qps
= 0;
9453 pf
->flags
&= ~I40E_FLAG_FCOE_ENABLED
;
9454 dev_info(&pf
->pdev
->dev
, "not enough queues for FCoE. FCoE feature will be disabled\n");
9457 queues_left
-= pf
->num_fcoe_qps
;
9461 if (pf
->flags
& I40E_FLAG_FD_SB_ENABLED
) {
9462 if (queues_left
> 1) {
9463 queues_left
-= 1; /* save 1 queue for FD */
9465 pf
->flags
&= ~I40E_FLAG_FD_SB_ENABLED
;
9466 dev_info(&pf
->pdev
->dev
, "not enough queues for Flow Director. Flow Director feature is disabled\n");
9470 if ((pf
->flags
& I40E_FLAG_SRIOV_ENABLED
) &&
9471 pf
->num_vf_qps
&& pf
->num_req_vfs
&& queues_left
) {
9472 pf
->num_req_vfs
= min_t(int, pf
->num_req_vfs
,
9473 (queues_left
/ pf
->num_vf_qps
));
9474 queues_left
-= (pf
->num_req_vfs
* pf
->num_vf_qps
);
9477 if ((pf
->flags
& I40E_FLAG_VMDQ_ENABLED
) &&
9478 pf
->num_vmdq_vsis
&& pf
->num_vmdq_qps
&& queues_left
) {
9479 pf
->num_vmdq_vsis
= min_t(int, pf
->num_vmdq_vsis
,
9480 (queues_left
/ pf
->num_vmdq_qps
));
9481 queues_left
-= (pf
->num_vmdq_vsis
* pf
->num_vmdq_qps
);
9484 pf
->queues_left
= queues_left
;
9486 dev_info(&pf
->pdev
->dev
, "fcoe queues = %d\n", pf
->num_fcoe_qps
);
9491 * i40e_setup_pf_filter_control - Setup PF static filter control
9492 * @pf: PF to be setup
9494 * i40e_setup_pf_filter_control sets up a PF's initial filter control
9495 * settings. If PE/FCoE are enabled then it will also set the per PF
9496 * based filter sizes required for them. It also enables Flow director,
9497 * ethertype and macvlan type filter settings for the pf.
9499 * Returns 0 on success, negative on failure
9501 static int i40e_setup_pf_filter_control(struct i40e_pf
*pf
)
9503 struct i40e_filter_control_settings
*settings
= &pf
->filter_settings
;
9505 settings
->hash_lut_size
= I40E_HASH_LUT_SIZE_128
;
9507 /* Flow Director is enabled */
9508 if (pf
->flags
& (I40E_FLAG_FD_SB_ENABLED
| I40E_FLAG_FD_ATR_ENABLED
))
9509 settings
->enable_fdir
= true;
9511 /* Ethtype and MACVLAN filters enabled for PF */
9512 settings
->enable_ethtype
= true;
9513 settings
->enable_macvlan
= true;
9515 if (i40e_set_filter_control(&pf
->hw
, settings
))
9521 #define INFO_STRING_LEN 255
9522 static void i40e_print_features(struct i40e_pf
*pf
)
9524 struct i40e_hw
*hw
= &pf
->hw
;
9527 string
= kzalloc(INFO_STRING_LEN
, GFP_KERNEL
);
9529 dev_err(&pf
->pdev
->dev
, "Features string allocation failed\n");
9535 buf
+= sprintf(string
, "Features: PF-id[%d] ", hw
->pf_id
);
9536 #ifdef CONFIG_PCI_IOV
9537 buf
+= sprintf(buf
, "VFs: %d ", pf
->num_req_vfs
);
9539 buf
+= sprintf(buf
, "VSIs: %d QP: %d RX: %s ",
9540 pf
->hw
.func_caps
.num_vsis
,
9541 pf
->vsi
[pf
->lan_vsi
]->num_queue_pairs
,
9542 pf
->flags
& I40E_FLAG_RX_PS_ENABLED
? "PS" : "1BUF");
9544 if (pf
->flags
& I40E_FLAG_RSS_ENABLED
)
9545 buf
+= sprintf(buf
, "RSS ");
9546 if (pf
->flags
& I40E_FLAG_FD_ATR_ENABLED
)
9547 buf
+= sprintf(buf
, "FD_ATR ");
9548 if (pf
->flags
& I40E_FLAG_FD_SB_ENABLED
) {
9549 buf
+= sprintf(buf
, "FD_SB ");
9550 buf
+= sprintf(buf
, "NTUPLE ");
9552 if (pf
->flags
& I40E_FLAG_DCB_CAPABLE
)
9553 buf
+= sprintf(buf
, "DCB ");
9554 if (pf
->flags
& I40E_FLAG_PTP
)
9555 buf
+= sprintf(buf
, "PTP ");
9557 if (pf
->flags
& I40E_FLAG_FCOE_ENABLED
)
9558 buf
+= sprintf(buf
, "FCOE ");
9561 BUG_ON(buf
> (string
+ INFO_STRING_LEN
));
9562 dev_info(&pf
->pdev
->dev
, "%s\n", string
);
9567 * i40e_probe - Device initialization routine
9568 * @pdev: PCI device information struct
9569 * @ent: entry in i40e_pci_tbl
9571 * i40e_probe initializes a PF identified by a pci_dev structure.
9572 * The OS initialization, configuring of the PF private structure,
9573 * and a hardware reset occur.
9575 * Returns 0 on success, negative on failure
9577 static int i40e_probe(struct pci_dev
*pdev
, const struct pci_device_id
*ent
)
9579 struct i40e_aq_get_phy_abilities_resp abilities
;
9580 unsigned long ioremap_len
;
9583 static u16 pfs_found
;
9589 err
= pci_enable_device_mem(pdev
);
9593 /* set up for high or low dma */
9594 err
= dma_set_mask_and_coherent(&pdev
->dev
, DMA_BIT_MASK(64));
9596 err
= dma_set_mask_and_coherent(&pdev
->dev
, DMA_BIT_MASK(32));
9599 "DMA configuration failed: 0x%x\n", err
);
9604 /* set up pci connections */
9605 err
= pci_request_selected_regions(pdev
, pci_select_bars(pdev
,
9606 IORESOURCE_MEM
), i40e_driver_name
);
9608 dev_info(&pdev
->dev
,
9609 "pci_request_selected_regions failed %d\n", err
);
9613 pci_enable_pcie_error_reporting(pdev
);
9614 pci_set_master(pdev
);
9616 /* Now that we have a PCI connection, we need to do the
9617 * low level device setup. This is primarily setting up
9618 * the Admin Queue structures and then querying for the
9619 * device's current profile information.
9621 pf
= kzalloc(sizeof(*pf
), GFP_KERNEL
);
9628 set_bit(__I40E_DOWN
, &pf
->state
);
9633 ioremap_len
= min_t(unsigned long, pci_resource_len(pdev
, 0),
9634 I40E_MAX_CSR_SPACE
);
9636 hw
->hw_addr
= ioremap(pci_resource_start(pdev
, 0), ioremap_len
);
9639 dev_info(&pdev
->dev
, "ioremap(0x%04x, 0x%04x) failed: 0x%x\n",
9640 (unsigned int)pci_resource_start(pdev
, 0),
9641 (unsigned int)pci_resource_len(pdev
, 0), err
);
9644 hw
->vendor_id
= pdev
->vendor
;
9645 hw
->device_id
= pdev
->device
;
9646 pci_read_config_byte(pdev
, PCI_REVISION_ID
, &hw
->revision_id
);
9647 hw
->subsystem_vendor_id
= pdev
->subsystem_vendor
;
9648 hw
->subsystem_device_id
= pdev
->subsystem_device
;
9649 hw
->bus
.device
= PCI_SLOT(pdev
->devfn
);
9650 hw
->bus
.func
= PCI_FUNC(pdev
->devfn
);
9651 pf
->instance
= pfs_found
;
9654 pf
->msg_enable
= pf
->hw
.debug_mask
;
9655 pf
->msg_enable
= debug
;
9658 /* do a special CORER for clearing PXE mode once at init */
9659 if (hw
->revision_id
== 0 &&
9660 (rd32(hw
, I40E_GLLAN_RCTL_0
) & I40E_GLLAN_RCTL_0_PXE_MODE_MASK
)) {
9661 wr32(hw
, I40E_GLGEN_RTRIG
, I40E_GLGEN_RTRIG_CORER_MASK
);
9666 i40e_clear_pxe_mode(hw
);
9669 /* Reset here to make sure all is clean and to define PF 'n' */
9671 err
= i40e_pf_reset(hw
);
9673 dev_info(&pdev
->dev
, "Initial pf_reset failed: %d\n", err
);
9678 hw
->aq
.num_arq_entries
= I40E_AQ_LEN
;
9679 hw
->aq
.num_asq_entries
= I40E_AQ_LEN
;
9680 hw
->aq
.arq_buf_size
= I40E_MAX_AQ_BUF_SIZE
;
9681 hw
->aq
.asq_buf_size
= I40E_MAX_AQ_BUF_SIZE
;
9682 pf
->adminq_work_limit
= I40E_AQ_WORK_LIMIT
;
9684 snprintf(pf
->int_name
, sizeof(pf
->int_name
) - 1,
9686 dev_driver_string(&pf
->pdev
->dev
), dev_name(&pdev
->dev
));
9688 err
= i40e_init_shared_code(hw
);
9690 dev_info(&pdev
->dev
, "init_shared_code failed: %d\n", err
);
9694 /* set up a default setting for link flow control */
9695 pf
->hw
.fc
.requested_mode
= I40E_FC_NONE
;
9697 err
= i40e_init_adminq(hw
);
9698 dev_info(&pdev
->dev
, "%s\n", i40e_fw_version_str(hw
));
9700 dev_info(&pdev
->dev
,
9701 "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");
9705 if (hw
->aq
.api_maj_ver
== I40E_FW_API_VERSION_MAJOR
&&
9706 hw
->aq
.api_min_ver
> I40E_FW_API_VERSION_MINOR
)
9707 dev_info(&pdev
->dev
,
9708 "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");
9709 else if (hw
->aq
.api_maj_ver
< I40E_FW_API_VERSION_MAJOR
||
9710 hw
->aq
.api_min_ver
< (I40E_FW_API_VERSION_MINOR
- 1))
9711 dev_info(&pdev
->dev
,
9712 "The driver for the device detected an older version of the NVM image than expected. Please update the NVM image.\n");
9714 i40e_verify_eeprom(pf
);
9716 /* Rev 0 hardware was never productized */
9717 if (hw
->revision_id
< 1)
9718 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");
9720 i40e_clear_pxe_mode(hw
);
9721 err
= i40e_get_capabilities(pf
);
9723 goto err_adminq_setup
;
9725 err
= i40e_sw_init(pf
);
9727 dev_info(&pdev
->dev
, "sw_init failed: %d\n", err
);
9731 err
= i40e_init_lan_hmc(hw
, hw
->func_caps
.num_tx_qp
,
9732 hw
->func_caps
.num_rx_qp
,
9733 pf
->fcoe_hmc_cntx_num
, pf
->fcoe_hmc_filt_num
);
9735 dev_info(&pdev
->dev
, "init_lan_hmc failed: %d\n", err
);
9736 goto err_init_lan_hmc
;
9739 err
= i40e_configure_lan_hmc(hw
, I40E_HMC_MODEL_DIRECT_ONLY
);
9741 dev_info(&pdev
->dev
, "configure_lan_hmc failed: %d\n", err
);
9743 goto err_configure_lan_hmc
;
9746 /* Disable LLDP for NICs that have firmware versions lower than v4.3.
9747 * Ignore error return codes because if it was already disabled via
9748 * hardware settings this will fail
9750 if (((pf
->hw
.aq
.fw_maj_ver
== 4) && (pf
->hw
.aq
.fw_min_ver
< 3)) ||
9751 (pf
->hw
.aq
.fw_maj_ver
< 4)) {
9752 dev_info(&pdev
->dev
, "Stopping firmware LLDP agent.\n");
9753 i40e_aq_stop_lldp(hw
, true, NULL
);
9756 i40e_get_mac_addr(hw
, hw
->mac
.addr
);
9757 if (!is_valid_ether_addr(hw
->mac
.addr
)) {
9758 dev_info(&pdev
->dev
, "invalid MAC address %pM\n", hw
->mac
.addr
);
9762 dev_info(&pdev
->dev
, "MAC address: %pM\n", hw
->mac
.addr
);
9763 ether_addr_copy(hw
->mac
.perm_addr
, hw
->mac
.addr
);
9764 i40e_get_port_mac_addr(hw
, hw
->mac
.port_addr
);
9765 if (is_valid_ether_addr(hw
->mac
.port_addr
))
9766 pf
->flags
|= I40E_FLAG_PORT_ID_VALID
;
9768 err
= i40e_get_san_mac_addr(hw
, hw
->mac
.san_addr
);
9770 dev_info(&pdev
->dev
,
9771 "(non-fatal) SAN MAC retrieval failed: %d\n", err
);
9772 if (!is_valid_ether_addr(hw
->mac
.san_addr
)) {
9773 dev_warn(&pdev
->dev
, "invalid SAN MAC address %pM, falling back to LAN MAC\n",
9775 ether_addr_copy(hw
->mac
.san_addr
, hw
->mac
.addr
);
9777 dev_info(&pf
->pdev
->dev
, "SAN MAC: %pM\n", hw
->mac
.san_addr
);
9778 #endif /* I40E_FCOE */
9780 pci_set_drvdata(pdev
, pf
);
9781 pci_save_state(pdev
);
9782 #ifdef CONFIG_I40E_DCB
9783 err
= i40e_init_pf_dcb(pf
);
9785 dev_info(&pdev
->dev
, "DCB init failed %d, disabled\n", err
);
9786 pf
->flags
&= ~I40E_FLAG_DCB_CAPABLE
;
9787 /* Continue without DCB enabled */
9789 #endif /* CONFIG_I40E_DCB */
9791 /* set up periodic task facility */
9792 setup_timer(&pf
->service_timer
, i40e_service_timer
, (unsigned long)pf
);
9793 pf
->service_timer_period
= HZ
;
9795 INIT_WORK(&pf
->service_task
, i40e_service_task
);
9796 clear_bit(__I40E_SERVICE_SCHED
, &pf
->state
);
9797 pf
->flags
|= I40E_FLAG_NEED_LINK_UPDATE
;
9798 pf
->link_check_timeout
= jiffies
;
9800 /* WoL defaults to disabled */
9802 device_set_wakeup_enable(&pf
->pdev
->dev
, pf
->wol_en
);
9804 /* set up the main switch operations */
9805 i40e_determine_queue_usage(pf
);
9806 i40e_init_interrupt_scheme(pf
);
9808 /* The number of VSIs reported by the FW is the minimum guaranteed
9809 * to us; HW supports far more and we share the remaining pool with
9810 * the other PFs. We allocate space for more than the guarantee with
9811 * the understanding that we might not get them all later.
9813 if (pf
->hw
.func_caps
.num_vsis
< I40E_MIN_VSI_ALLOC
)
9814 pf
->num_alloc_vsi
= I40E_MIN_VSI_ALLOC
;
9816 pf
->num_alloc_vsi
= pf
->hw
.func_caps
.num_vsis
;
9818 /* Set up the *vsi struct and our local tracking of the MAIN PF vsi. */
9819 len
= sizeof(struct i40e_vsi
*) * pf
->num_alloc_vsi
;
9820 pf
->vsi
= kzalloc(len
, GFP_KERNEL
);
9823 goto err_switch_setup
;
9826 err
= i40e_setup_pf_switch(pf
, false);
9828 dev_info(&pdev
->dev
, "setup_pf_switch failed: %d\n", err
);
9831 /* if FDIR VSI was set up, start it now */
9832 for (i
= 0; i
< pf
->num_alloc_vsi
; i
++) {
9833 if (pf
->vsi
[i
] && pf
->vsi
[i
]->type
== I40E_VSI_FDIR
) {
9834 i40e_vsi_open(pf
->vsi
[i
]);
9839 /* driver is only interested in link up/down and module qualification
9840 * reports from firmware
9842 err
= i40e_aq_set_phy_int_mask(&pf
->hw
,
9843 I40E_AQ_EVENT_LINK_UPDOWN
|
9844 I40E_AQ_EVENT_MODULE_QUAL_FAIL
, NULL
);
9846 dev_info(&pf
->pdev
->dev
, "set phy mask fail, aq_err %d\n", err
);
9848 if (((pf
->hw
.aq
.fw_maj_ver
== 4) && (pf
->hw
.aq
.fw_min_ver
< 33)) ||
9849 (pf
->hw
.aq
.fw_maj_ver
< 4)) {
9851 err
= i40e_aq_set_link_restart_an(&pf
->hw
, true, NULL
);
9853 dev_info(&pf
->pdev
->dev
, "link restart failed, aq_err=%d\n",
9854 pf
->hw
.aq
.asq_last_status
);
9856 /* The main driver is (mostly) up and happy. We need to set this state
9857 * before setting up the misc vector or we get a race and the vector
9858 * ends up disabled forever.
9860 clear_bit(__I40E_DOWN
, &pf
->state
);
9862 /* In case of MSIX we are going to setup the misc vector right here
9863 * to handle admin queue events etc. In case of legacy and MSI
9864 * the misc functionality and queue processing is combined in
9865 * the same vector and that gets setup at open.
9867 if (pf
->flags
& I40E_FLAG_MSIX_ENABLED
) {
9868 err
= i40e_setup_misc_vector(pf
);
9870 dev_info(&pdev
->dev
,
9871 "setup of misc vector failed: %d\n", err
);
9876 #ifdef CONFIG_PCI_IOV
9877 /* prep for VF support */
9878 if ((pf
->flags
& I40E_FLAG_SRIOV_ENABLED
) &&
9879 (pf
->flags
& I40E_FLAG_MSIX_ENABLED
) &&
9880 !test_bit(__I40E_BAD_EEPROM
, &pf
->state
)) {
9883 /* disable link interrupts for VFs */
9884 val
= rd32(hw
, I40E_PFGEN_PORTMDIO_NUM
);
9885 val
&= ~I40E_PFGEN_PORTMDIO_NUM_VFLINK_STAT_ENA_MASK
;
9886 wr32(hw
, I40E_PFGEN_PORTMDIO_NUM
, val
);
9889 if (pci_num_vf(pdev
)) {
9890 dev_info(&pdev
->dev
,
9891 "Active VFs found, allocating resources.\n");
9892 err
= i40e_alloc_vfs(pf
, pci_num_vf(pdev
));
9894 dev_info(&pdev
->dev
,
9895 "Error %d allocating resources for existing VFs\n",
9899 #endif /* CONFIG_PCI_IOV */
9903 i40e_dbg_pf_init(pf
);
9905 /* tell the firmware that we're starting */
9906 i40e_send_version(pf
);
9908 /* since everything's happy, start the service_task timer */
9909 mod_timer(&pf
->service_timer
,
9910 round_jiffies(jiffies
+ pf
->service_timer_period
));
9913 /* create FCoE interface */
9914 i40e_fcoe_vsi_setup(pf
);
9917 /* Get the negotiated link width and speed from PCI config space */
9918 pcie_capability_read_word(pf
->pdev
, PCI_EXP_LNKSTA
, &link_status
);
9920 i40e_set_pci_config_data(hw
, link_status
);
9922 dev_info(&pdev
->dev
, "PCI-Express: %s %s\n",
9923 (hw
->bus
.speed
== i40e_bus_speed_8000
? "Speed 8.0GT/s" :
9924 hw
->bus
.speed
== i40e_bus_speed_5000
? "Speed 5.0GT/s" :
9925 hw
->bus
.speed
== i40e_bus_speed_2500
? "Speed 2.5GT/s" :
9927 (hw
->bus
.width
== i40e_bus_width_pcie_x8
? "Width x8" :
9928 hw
->bus
.width
== i40e_bus_width_pcie_x4
? "Width x4" :
9929 hw
->bus
.width
== i40e_bus_width_pcie_x2
? "Width x2" :
9930 hw
->bus
.width
== i40e_bus_width_pcie_x1
? "Width x1" :
9933 if (hw
->bus
.width
< i40e_bus_width_pcie_x8
||
9934 hw
->bus
.speed
< i40e_bus_speed_8000
) {
9935 dev_warn(&pdev
->dev
, "PCI-Express bandwidth available for this device may be insufficient for optimal performance.\n");
9936 dev_warn(&pdev
->dev
, "Please move the device to a different PCI-e link with more lanes and/or higher transfer rate.\n");
9939 /* get the requested speeds from the fw */
9940 err
= i40e_aq_get_phy_capabilities(hw
, false, false, &abilities
, NULL
);
9942 dev_info(&pf
->pdev
->dev
, "get phy abilities failed, aq_err %d, advertised speed settings may not be correct\n",
9944 pf
->hw
.phy
.link_info
.requested_speeds
= abilities
.link_speed
;
9946 /* print a string summarizing features */
9947 i40e_print_features(pf
);
9951 /* Unwind what we've done if something failed in the setup */
9953 set_bit(__I40E_DOWN
, &pf
->state
);
9954 i40e_clear_interrupt_scheme(pf
);
9957 i40e_reset_interrupt_capability(pf
);
9958 del_timer_sync(&pf
->service_timer
);
9960 err_configure_lan_hmc
:
9961 (void)i40e_shutdown_lan_hmc(hw
);
9966 (void)i40e_shutdown_adminq(hw
);
9968 iounmap(hw
->hw_addr
);
9972 pci_disable_pcie_error_reporting(pdev
);
9973 pci_release_selected_regions(pdev
,
9974 pci_select_bars(pdev
, IORESOURCE_MEM
));
9977 pci_disable_device(pdev
);
9982 * i40e_remove - Device removal routine
9983 * @pdev: PCI device information struct
9985 * i40e_remove is called by the PCI subsystem to alert the driver
9986 * that is should release a PCI device. This could be caused by a
9987 * Hot-Plug event, or because the driver is going to be removed from
9990 static void i40e_remove(struct pci_dev
*pdev
)
9992 struct i40e_pf
*pf
= pci_get_drvdata(pdev
);
9993 i40e_status ret_code
;
9996 i40e_dbg_pf_exit(pf
);
10000 /* no more scheduling of any task */
10001 set_bit(__I40E_DOWN
, &pf
->state
);
10002 del_timer_sync(&pf
->service_timer
);
10003 cancel_work_sync(&pf
->service_task
);
10004 i40e_fdir_teardown(pf
);
10006 if (pf
->flags
& I40E_FLAG_SRIOV_ENABLED
) {
10008 pf
->flags
&= ~I40E_FLAG_SRIOV_ENABLED
;
10011 i40e_fdir_teardown(pf
);
10013 /* If there is a switch structure or any orphans, remove them.
10014 * This will leave only the PF's VSI remaining.
10016 for (i
= 0; i
< I40E_MAX_VEB
; i
++) {
10020 if (pf
->veb
[i
]->uplink_seid
== pf
->mac_seid
||
10021 pf
->veb
[i
]->uplink_seid
== 0)
10022 i40e_switch_branch_release(pf
->veb
[i
]);
10025 /* Now we can shutdown the PF's VSI, just before we kill
10028 if (pf
->vsi
[pf
->lan_vsi
])
10029 i40e_vsi_release(pf
->vsi
[pf
->lan_vsi
]);
10031 /* shutdown and destroy the HMC */
10032 if (pf
->hw
.hmc
.hmc_obj
) {
10033 ret_code
= i40e_shutdown_lan_hmc(&pf
->hw
);
10035 dev_warn(&pdev
->dev
,
10036 "Failed to destroy the HMC resources: %d\n",
10040 /* shutdown the adminq */
10041 ret_code
= i40e_shutdown_adminq(&pf
->hw
);
10043 dev_warn(&pdev
->dev
,
10044 "Failed to destroy the Admin Queue resources: %d\n",
10047 /* Clear all dynamic memory lists of rings, q_vectors, and VSIs */
10048 i40e_clear_interrupt_scheme(pf
);
10049 for (i
= 0; i
< pf
->num_alloc_vsi
; i
++) {
10051 i40e_vsi_clear_rings(pf
->vsi
[i
]);
10052 i40e_vsi_clear(pf
->vsi
[i
]);
10057 for (i
= 0; i
< I40E_MAX_VEB
; i
++) {
10062 kfree(pf
->qp_pile
);
10065 iounmap(pf
->hw
.hw_addr
);
10067 pci_release_selected_regions(pdev
,
10068 pci_select_bars(pdev
, IORESOURCE_MEM
));
10070 pci_disable_pcie_error_reporting(pdev
);
10071 pci_disable_device(pdev
);
10075 * i40e_pci_error_detected - warning that something funky happened in PCI land
10076 * @pdev: PCI device information struct
10078 * Called to warn that something happened and the error handling steps
10079 * are in progress. Allows the driver to quiesce things, be ready for
10082 static pci_ers_result_t
i40e_pci_error_detected(struct pci_dev
*pdev
,
10083 enum pci_channel_state error
)
10085 struct i40e_pf
*pf
= pci_get_drvdata(pdev
);
10087 dev_info(&pdev
->dev
, "%s: error %d\n", __func__
, error
);
10089 /* shutdown all operations */
10090 if (!test_bit(__I40E_SUSPENDED
, &pf
->state
)) {
10092 i40e_prep_for_reset(pf
);
10096 /* Request a slot reset */
10097 return PCI_ERS_RESULT_NEED_RESET
;
10101 * i40e_pci_error_slot_reset - a PCI slot reset just happened
10102 * @pdev: PCI device information struct
10104 * Called to find if the driver can work with the device now that
10105 * the pci slot has been reset. If a basic connection seems good
10106 * (registers are readable and have sane content) then return a
10107 * happy little PCI_ERS_RESULT_xxx.
10109 static pci_ers_result_t
i40e_pci_error_slot_reset(struct pci_dev
*pdev
)
10111 struct i40e_pf
*pf
= pci_get_drvdata(pdev
);
10112 pci_ers_result_t result
;
10116 dev_info(&pdev
->dev
, "%s\n", __func__
);
10117 if (pci_enable_device_mem(pdev
)) {
10118 dev_info(&pdev
->dev
,
10119 "Cannot re-enable PCI device after reset.\n");
10120 result
= PCI_ERS_RESULT_DISCONNECT
;
10122 pci_set_master(pdev
);
10123 pci_restore_state(pdev
);
10124 pci_save_state(pdev
);
10125 pci_wake_from_d3(pdev
, false);
10127 reg
= rd32(&pf
->hw
, I40E_GLGEN_RTRIG
);
10129 result
= PCI_ERS_RESULT_RECOVERED
;
10131 result
= PCI_ERS_RESULT_DISCONNECT
;
10134 err
= pci_cleanup_aer_uncorrect_error_status(pdev
);
10136 dev_info(&pdev
->dev
,
10137 "pci_cleanup_aer_uncorrect_error_status failed 0x%0x\n",
10139 /* non-fatal, continue */
10146 * i40e_pci_error_resume - restart operations after PCI error recovery
10147 * @pdev: PCI device information struct
10149 * Called to allow the driver to bring things back up after PCI error
10150 * and/or reset recovery has finished.
10152 static void i40e_pci_error_resume(struct pci_dev
*pdev
)
10154 struct i40e_pf
*pf
= pci_get_drvdata(pdev
);
10156 dev_info(&pdev
->dev
, "%s\n", __func__
);
10157 if (test_bit(__I40E_SUSPENDED
, &pf
->state
))
10161 i40e_handle_reset_warning(pf
);
10166 * i40e_shutdown - PCI callback for shutting down
10167 * @pdev: PCI device information struct
10169 static void i40e_shutdown(struct pci_dev
*pdev
)
10171 struct i40e_pf
*pf
= pci_get_drvdata(pdev
);
10172 struct i40e_hw
*hw
= &pf
->hw
;
10174 set_bit(__I40E_SUSPENDED
, &pf
->state
);
10175 set_bit(__I40E_DOWN
, &pf
->state
);
10177 i40e_prep_for_reset(pf
);
10180 wr32(hw
, I40E_PFPM_APM
, (pf
->wol_en
? I40E_PFPM_APM_APME_MASK
: 0));
10181 wr32(hw
, I40E_PFPM_WUFC
, (pf
->wol_en
? I40E_PFPM_WUFC_MAG_MASK
: 0));
10183 i40e_clear_interrupt_scheme(pf
);
10185 if (system_state
== SYSTEM_POWER_OFF
) {
10186 pci_wake_from_d3(pdev
, pf
->wol_en
);
10187 pci_set_power_state(pdev
, PCI_D3hot
);
10193 * i40e_suspend - PCI callback for moving to D3
10194 * @pdev: PCI device information struct
10196 static int i40e_suspend(struct pci_dev
*pdev
, pm_message_t state
)
10198 struct i40e_pf
*pf
= pci_get_drvdata(pdev
);
10199 struct i40e_hw
*hw
= &pf
->hw
;
10201 set_bit(__I40E_SUSPENDED
, &pf
->state
);
10202 set_bit(__I40E_DOWN
, &pf
->state
);
10203 del_timer_sync(&pf
->service_timer
);
10204 cancel_work_sync(&pf
->service_task
);
10206 i40e_prep_for_reset(pf
);
10209 wr32(hw
, I40E_PFPM_APM
, (pf
->wol_en
? I40E_PFPM_APM_APME_MASK
: 0));
10210 wr32(hw
, I40E_PFPM_WUFC
, (pf
->wol_en
? I40E_PFPM_WUFC_MAG_MASK
: 0));
10212 pci_wake_from_d3(pdev
, pf
->wol_en
);
10213 pci_set_power_state(pdev
, PCI_D3hot
);
10219 * i40e_resume - PCI callback for waking up from D3
10220 * @pdev: PCI device information struct
10222 static int i40e_resume(struct pci_dev
*pdev
)
10224 struct i40e_pf
*pf
= pci_get_drvdata(pdev
);
10227 pci_set_power_state(pdev
, PCI_D0
);
10228 pci_restore_state(pdev
);
10229 /* pci_restore_state() clears dev->state_saves, so
10230 * call pci_save_state() again to restore it.
10232 pci_save_state(pdev
);
10234 err
= pci_enable_device_mem(pdev
);
10236 dev_err(&pdev
->dev
,
10237 "%s: Cannot enable PCI device from suspend\n",
10241 pci_set_master(pdev
);
10243 /* no wakeup events while running */
10244 pci_wake_from_d3(pdev
, false);
10246 /* handling the reset will rebuild the device state */
10247 if (test_and_clear_bit(__I40E_SUSPENDED
, &pf
->state
)) {
10248 clear_bit(__I40E_DOWN
, &pf
->state
);
10250 i40e_reset_and_rebuild(pf
, false);
10258 static const struct pci_error_handlers i40e_err_handler
= {
10259 .error_detected
= i40e_pci_error_detected
,
10260 .slot_reset
= i40e_pci_error_slot_reset
,
10261 .resume
= i40e_pci_error_resume
,
10264 static struct pci_driver i40e_driver
= {
10265 .name
= i40e_driver_name
,
10266 .id_table
= i40e_pci_tbl
,
10267 .probe
= i40e_probe
,
10268 .remove
= i40e_remove
,
10270 .suspend
= i40e_suspend
,
10271 .resume
= i40e_resume
,
10273 .shutdown
= i40e_shutdown
,
10274 .err_handler
= &i40e_err_handler
,
10275 .sriov_configure
= i40e_pci_sriov_configure
,
10279 * i40e_init_module - Driver registration routine
10281 * i40e_init_module is the first routine called when the driver is
10282 * loaded. All it does is register with the PCI subsystem.
10284 static int __init
i40e_init_module(void)
10286 pr_info("%s: %s - version %s\n", i40e_driver_name
,
10287 i40e_driver_string
, i40e_driver_version_str
);
10288 pr_info("%s: %s\n", i40e_driver_name
, i40e_copyright
);
10291 return pci_register_driver(&i40e_driver
);
10293 module_init(i40e_init_module
);
10296 * i40e_exit_module - Driver exit cleanup routine
10298 * i40e_exit_module is called just before the driver is removed
10301 static void __exit
i40e_exit_module(void)
10303 pci_unregister_driver(&i40e_driver
);
10306 module_exit(i40e_exit_module
);