1 /*******************************************************************************
3 * Intel Ethernet Controller XL710 Family Linux Driver
4 * Copyright(c) 2013 - 2014 Intel Corporation.
6 * This program is free software; you can redistribute it and/or modify it
7 * under the terms and conditions of the GNU General Public License,
8 * version 2, as published by the Free Software Foundation.
10 * This program is distributed in the hope it will be useful, but WITHOUT
11 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
12 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
15 * You should have received a copy of the GNU General Public License along
16 * with this program. If not, see <http://www.gnu.org/licenses/>.
18 * The full GNU General Public License is included in this distribution in
19 * the file called "COPYING".
21 * Contact Information:
22 * e1000-devel Mailing List <e1000-devel@lists.sourceforge.net>
23 * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
25 ******************************************************************************/
29 #include "i40e_diag.h"
30 #ifdef CONFIG_I40E_VXLAN
31 #include <net/vxlan.h>
34 const char i40e_driver_name
[] = "i40e";
35 static const char i40e_driver_string
[] =
36 "Intel(R) Ethernet Connection XL710 Network Driver";
40 #define DRV_VERSION_MAJOR 0
41 #define DRV_VERSION_MINOR 4
42 #define DRV_VERSION_BUILD 21
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 DEFINE_PCI_DEVICE_TABLE(i40e_pci_tbl
) = {
69 {PCI_VDEVICE(INTEL
, I40E_DEV_ID_SFP_XL710
), 0},
70 {PCI_VDEVICE(INTEL
, I40E_DEV_ID_QEMU
), 0},
71 {PCI_VDEVICE(INTEL
, I40E_DEV_ID_KX_A
), 0},
72 {PCI_VDEVICE(INTEL
, I40E_DEV_ID_KX_B
), 0},
73 {PCI_VDEVICE(INTEL
, I40E_DEV_ID_KX_C
), 0},
74 {PCI_VDEVICE(INTEL
, I40E_DEV_ID_QSFP_A
), 0},
75 {PCI_VDEVICE(INTEL
, I40E_DEV_ID_QSFP_B
), 0},
76 {PCI_VDEVICE(INTEL
, I40E_DEV_ID_QSFP_C
), 0},
77 /* required last entry */
80 MODULE_DEVICE_TABLE(pci
, i40e_pci_tbl
);
82 #define I40E_MAX_VF_COUNT 128
83 static int debug
= -1;
84 module_param(debug
, int, 0);
85 MODULE_PARM_DESC(debug
, "Debug level (0=none,...,16=all)");
87 MODULE_AUTHOR("Intel Corporation, <e1000-devel@lists.sourceforge.net>");
88 MODULE_DESCRIPTION("Intel(R) Ethernet Connection XL710 Network Driver");
89 MODULE_LICENSE("GPL");
90 MODULE_VERSION(DRV_VERSION
);
93 * i40e_allocate_dma_mem_d - OS specific memory alloc for shared code
94 * @hw: pointer to the HW structure
95 * @mem: ptr to mem struct to fill out
96 * @size: size of memory requested
97 * @alignment: what to align the allocation to
99 int i40e_allocate_dma_mem_d(struct i40e_hw
*hw
, struct i40e_dma_mem
*mem
,
100 u64 size
, u32 alignment
)
102 struct i40e_pf
*pf
= (struct i40e_pf
*)hw
->back
;
104 mem
->size
= ALIGN(size
, alignment
);
105 mem
->va
= dma_zalloc_coherent(&pf
->pdev
->dev
, mem
->size
,
106 &mem
->pa
, GFP_KERNEL
);
114 * i40e_free_dma_mem_d - OS specific memory free for shared code
115 * @hw: pointer to the HW structure
116 * @mem: ptr to mem struct to free
118 int i40e_free_dma_mem_d(struct i40e_hw
*hw
, struct i40e_dma_mem
*mem
)
120 struct i40e_pf
*pf
= (struct i40e_pf
*)hw
->back
;
122 dma_free_coherent(&pf
->pdev
->dev
, mem
->size
, mem
->va
, mem
->pa
);
131 * i40e_allocate_virt_mem_d - OS specific memory alloc for shared code
132 * @hw: pointer to the HW structure
133 * @mem: ptr to mem struct to fill out
134 * @size: size of memory requested
136 int i40e_allocate_virt_mem_d(struct i40e_hw
*hw
, struct i40e_virt_mem
*mem
,
140 mem
->va
= kzalloc(size
, GFP_KERNEL
);
149 * i40e_free_virt_mem_d - OS specific memory free for shared code
150 * @hw: pointer to the HW structure
151 * @mem: ptr to mem struct to free
153 int i40e_free_virt_mem_d(struct i40e_hw
*hw
, struct i40e_virt_mem
*mem
)
155 /* it's ok to kfree a NULL pointer */
164 * i40e_get_lump - find a lump of free generic resource
165 * @pf: board private structure
166 * @pile: the pile of resource to search
167 * @needed: the number of items needed
168 * @id: an owner id to stick on the items assigned
170 * Returns the base item index of the lump, or negative for error
172 * The search_hint trick and lack of advanced fit-finding only work
173 * because we're highly likely to have all the same size lump requests.
174 * Linear search time and any fragmentation should be minimal.
176 static int i40e_get_lump(struct i40e_pf
*pf
, struct i40e_lump_tracking
*pile
,
182 if (!pile
|| needed
== 0 || id
>= I40E_PILE_VALID_BIT
) {
183 dev_info(&pf
->pdev
->dev
,
184 "param err: pile=%p needed=%d id=0x%04x\n",
189 /* start the linear search with an imperfect hint */
190 i
= pile
->search_hint
;
191 while (i
< pile
->num_entries
) {
192 /* skip already allocated entries */
193 if (pile
->list
[i
] & I40E_PILE_VALID_BIT
) {
198 /* do we have enough in this lump? */
199 for (j
= 0; (j
< needed
) && ((i
+j
) < pile
->num_entries
); j
++) {
200 if (pile
->list
[i
+j
] & I40E_PILE_VALID_BIT
)
205 /* there was enough, so assign it to the requestor */
206 for (j
= 0; j
< needed
; j
++)
207 pile
->list
[i
+j
] = id
| I40E_PILE_VALID_BIT
;
209 pile
->search_hint
= i
+ j
;
212 /* not enough, so skip over it and continue looking */
221 * i40e_put_lump - return a lump of generic resource
222 * @pile: the pile of resource to search
223 * @index: the base item index
224 * @id: the owner id of the items assigned
226 * Returns the count of items in the lump
228 static int i40e_put_lump(struct i40e_lump_tracking
*pile
, u16 index
, u16 id
)
230 int valid_id
= (id
| I40E_PILE_VALID_BIT
);
234 if (!pile
|| index
>= pile
->num_entries
)
238 i
< pile
->num_entries
&& pile
->list
[i
] == valid_id
;
244 if (count
&& index
< pile
->search_hint
)
245 pile
->search_hint
= index
;
251 * i40e_service_event_schedule - Schedule the service task to wake up
252 * @pf: board private structure
254 * If not already scheduled, this puts the task into the work queue
256 static void i40e_service_event_schedule(struct i40e_pf
*pf
)
258 if (!test_bit(__I40E_DOWN
, &pf
->state
) &&
259 !test_bit(__I40E_RESET_RECOVERY_PENDING
, &pf
->state
) &&
260 !test_and_set_bit(__I40E_SERVICE_SCHED
, &pf
->state
))
261 schedule_work(&pf
->service_task
);
265 * i40e_tx_timeout - Respond to a Tx Hang
266 * @netdev: network interface device structure
268 * If any port has noticed a Tx timeout, it is likely that the whole
269 * device is munged, not just the one netdev port, so go for the full
272 static void i40e_tx_timeout(struct net_device
*netdev
)
274 struct i40e_netdev_priv
*np
= netdev_priv(netdev
);
275 struct i40e_vsi
*vsi
= np
->vsi
;
276 struct i40e_pf
*pf
= vsi
->back
;
278 pf
->tx_timeout_count
++;
280 if (time_after(jiffies
, (pf
->tx_timeout_last_recovery
+ HZ
*20)))
281 pf
->tx_timeout_recovery_level
= 1;
282 pf
->tx_timeout_last_recovery
= jiffies
;
283 netdev_info(netdev
, "tx_timeout recovery level %d\n",
284 pf
->tx_timeout_recovery_level
);
286 switch (pf
->tx_timeout_recovery_level
) {
288 /* disable and re-enable queues for the VSI */
289 if (in_interrupt()) {
290 set_bit(__I40E_REINIT_REQUESTED
, &pf
->state
);
291 set_bit(__I40E_REINIT_REQUESTED
, &vsi
->state
);
293 i40e_vsi_reinit_locked(vsi
);
297 set_bit(__I40E_PF_RESET_REQUESTED
, &pf
->state
);
300 set_bit(__I40E_CORE_RESET_REQUESTED
, &pf
->state
);
303 set_bit(__I40E_GLOBAL_RESET_REQUESTED
, &pf
->state
);
306 netdev_err(netdev
, "tx_timeout recovery unsuccessful\n");
307 set_bit(__I40E_DOWN_REQUESTED
, &pf
->state
);
308 set_bit(__I40E_DOWN_REQUESTED
, &vsi
->state
);
311 i40e_service_event_schedule(pf
);
312 pf
->tx_timeout_recovery_level
++;
316 * i40e_release_rx_desc - Store the new tail and head values
317 * @rx_ring: ring to bump
318 * @val: new head index
320 static inline void i40e_release_rx_desc(struct i40e_ring
*rx_ring
, u32 val
)
322 rx_ring
->next_to_use
= val
;
324 /* Force memory writes to complete before letting h/w
325 * know there are new descriptors to fetch. (Only
326 * applicable for weak-ordered memory model archs,
330 writel(val
, rx_ring
->tail
);
334 * i40e_get_vsi_stats_struct - Get System Network Statistics
335 * @vsi: the VSI we care about
337 * Returns the address of the device statistics structure.
338 * The statistics are actually updated from the service task.
340 struct rtnl_link_stats64
*i40e_get_vsi_stats_struct(struct i40e_vsi
*vsi
)
342 return &vsi
->net_stats
;
346 * i40e_get_netdev_stats_struct - Get statistics for netdev interface
347 * @netdev: network interface device structure
349 * Returns the address of the device statistics structure.
350 * The statistics are actually updated from the service task.
352 static struct rtnl_link_stats64
*i40e_get_netdev_stats_struct(
353 struct net_device
*netdev
,
354 struct rtnl_link_stats64
*stats
)
356 struct i40e_netdev_priv
*np
= netdev_priv(netdev
);
357 struct i40e_ring
*tx_ring
, *rx_ring
;
358 struct i40e_vsi
*vsi
= np
->vsi
;
359 struct rtnl_link_stats64
*vsi_stats
= i40e_get_vsi_stats_struct(vsi
);
362 if (test_bit(__I40E_DOWN
, &vsi
->state
))
369 for (i
= 0; i
< vsi
->num_queue_pairs
; i
++) {
373 tx_ring
= ACCESS_ONCE(vsi
->tx_rings
[i
]);
378 start
= u64_stats_fetch_begin_irq(&tx_ring
->syncp
);
379 packets
= tx_ring
->stats
.packets
;
380 bytes
= tx_ring
->stats
.bytes
;
381 } while (u64_stats_fetch_retry_irq(&tx_ring
->syncp
, start
));
383 stats
->tx_packets
+= packets
;
384 stats
->tx_bytes
+= bytes
;
385 rx_ring
= &tx_ring
[1];
388 start
= u64_stats_fetch_begin_irq(&rx_ring
->syncp
);
389 packets
= rx_ring
->stats
.packets
;
390 bytes
= rx_ring
->stats
.bytes
;
391 } while (u64_stats_fetch_retry_irq(&rx_ring
->syncp
, start
));
393 stats
->rx_packets
+= packets
;
394 stats
->rx_bytes
+= bytes
;
398 /* following stats updated by i40e_watchdog_subtask() */
399 stats
->multicast
= vsi_stats
->multicast
;
400 stats
->tx_errors
= vsi_stats
->tx_errors
;
401 stats
->tx_dropped
= vsi_stats
->tx_dropped
;
402 stats
->rx_errors
= vsi_stats
->rx_errors
;
403 stats
->rx_crc_errors
= vsi_stats
->rx_crc_errors
;
404 stats
->rx_length_errors
= vsi_stats
->rx_length_errors
;
410 * i40e_vsi_reset_stats - Resets all stats of the given vsi
411 * @vsi: the VSI to have its stats reset
413 void i40e_vsi_reset_stats(struct i40e_vsi
*vsi
)
415 struct rtnl_link_stats64
*ns
;
421 ns
= i40e_get_vsi_stats_struct(vsi
);
422 memset(ns
, 0, sizeof(*ns
));
423 memset(&vsi
->net_stats_offsets
, 0, sizeof(vsi
->net_stats_offsets
));
424 memset(&vsi
->eth_stats
, 0, sizeof(vsi
->eth_stats
));
425 memset(&vsi
->eth_stats_offsets
, 0, sizeof(vsi
->eth_stats_offsets
));
426 if (vsi
->rx_rings
&& vsi
->rx_rings
[0]) {
427 for (i
= 0; i
< vsi
->num_queue_pairs
; i
++) {
428 memset(&vsi
->rx_rings
[i
]->stats
, 0 ,
429 sizeof(vsi
->rx_rings
[i
]->stats
));
430 memset(&vsi
->rx_rings
[i
]->rx_stats
, 0 ,
431 sizeof(vsi
->rx_rings
[i
]->rx_stats
));
432 memset(&vsi
->tx_rings
[i
]->stats
, 0 ,
433 sizeof(vsi
->tx_rings
[i
]->stats
));
434 memset(&vsi
->tx_rings
[i
]->tx_stats
, 0,
435 sizeof(vsi
->tx_rings
[i
]->tx_stats
));
438 vsi
->stat_offsets_loaded
= false;
442 * i40e_pf_reset_stats - Reset all of the stats for the given pf
443 * @pf: the PF to be reset
445 void i40e_pf_reset_stats(struct i40e_pf
*pf
)
449 memset(&pf
->stats
, 0, sizeof(pf
->stats
));
450 memset(&pf
->stats_offsets
, 0, sizeof(pf
->stats_offsets
));
451 pf
->stat_offsets_loaded
= false;
453 for (i
= 0; i
< I40E_MAX_VEB
; i
++) {
455 memset(&pf
->veb
[i
]->stats
, 0,
456 sizeof(pf
->veb
[i
]->stats
));
457 memset(&pf
->veb
[i
]->stats_offsets
, 0,
458 sizeof(pf
->veb
[i
]->stats_offsets
));
459 pf
->veb
[i
]->stat_offsets_loaded
= false;
465 * i40e_stat_update48 - read and update a 48 bit stat from the chip
466 * @hw: ptr to the hardware info
467 * @hireg: the high 32 bit reg to read
468 * @loreg: the low 32 bit reg to read
469 * @offset_loaded: has the initial offset been loaded yet
470 * @offset: ptr to current offset value
471 * @stat: ptr to the stat
473 * Since the device stats are not reset at PFReset, they likely will not
474 * be zeroed when the driver starts. We'll save the first values read
475 * and use them as offsets to be subtracted from the raw values in order
476 * to report stats that count from zero. In the process, we also manage
477 * the potential roll-over.
479 static void i40e_stat_update48(struct i40e_hw
*hw
, u32 hireg
, u32 loreg
,
480 bool offset_loaded
, u64
*offset
, u64
*stat
)
484 if (hw
->device_id
== I40E_DEV_ID_QEMU
) {
485 new_data
= rd32(hw
, loreg
);
486 new_data
|= ((u64
)(rd32(hw
, hireg
) & 0xFFFF)) << 32;
488 new_data
= rd64(hw
, loreg
);
492 if (likely(new_data
>= *offset
))
493 *stat
= new_data
- *offset
;
495 *stat
= (new_data
+ ((u64
)1 << 48)) - *offset
;
496 *stat
&= 0xFFFFFFFFFFFFULL
;
500 * i40e_stat_update32 - read and update a 32 bit stat from the chip
501 * @hw: ptr to the hardware info
502 * @reg: the hw reg to read
503 * @offset_loaded: has the initial offset been loaded yet
504 * @offset: ptr to current offset value
505 * @stat: ptr to the stat
507 static void i40e_stat_update32(struct i40e_hw
*hw
, u32 reg
,
508 bool offset_loaded
, u64
*offset
, u64
*stat
)
512 new_data
= rd32(hw
, reg
);
515 if (likely(new_data
>= *offset
))
516 *stat
= (u32
)(new_data
- *offset
);
518 *stat
= (u32
)((new_data
+ ((u64
)1 << 32)) - *offset
);
522 * i40e_update_eth_stats - Update VSI-specific ethernet statistics counters.
523 * @vsi: the VSI to be updated
525 void i40e_update_eth_stats(struct i40e_vsi
*vsi
)
527 int stat_idx
= le16_to_cpu(vsi
->info
.stat_counter_idx
);
528 struct i40e_pf
*pf
= vsi
->back
;
529 struct i40e_hw
*hw
= &pf
->hw
;
530 struct i40e_eth_stats
*oes
;
531 struct i40e_eth_stats
*es
; /* device's eth stats */
533 es
= &vsi
->eth_stats
;
534 oes
= &vsi
->eth_stats_offsets
;
536 /* Gather up the stats that the hw collects */
537 i40e_stat_update32(hw
, I40E_GLV_TEPC(stat_idx
),
538 vsi
->stat_offsets_loaded
,
539 &oes
->tx_errors
, &es
->tx_errors
);
540 i40e_stat_update32(hw
, I40E_GLV_RDPC(stat_idx
),
541 vsi
->stat_offsets_loaded
,
542 &oes
->rx_discards
, &es
->rx_discards
);
543 i40e_stat_update32(hw
, I40E_GLV_RUPP(stat_idx
),
544 vsi
->stat_offsets_loaded
,
545 &oes
->rx_unknown_protocol
, &es
->rx_unknown_protocol
);
546 i40e_stat_update32(hw
, I40E_GLV_TEPC(stat_idx
),
547 vsi
->stat_offsets_loaded
,
548 &oes
->tx_errors
, &es
->tx_errors
);
550 i40e_stat_update48(hw
, I40E_GLV_GORCH(stat_idx
),
551 I40E_GLV_GORCL(stat_idx
),
552 vsi
->stat_offsets_loaded
,
553 &oes
->rx_bytes
, &es
->rx_bytes
);
554 i40e_stat_update48(hw
, I40E_GLV_UPRCH(stat_idx
),
555 I40E_GLV_UPRCL(stat_idx
),
556 vsi
->stat_offsets_loaded
,
557 &oes
->rx_unicast
, &es
->rx_unicast
);
558 i40e_stat_update48(hw
, I40E_GLV_MPRCH(stat_idx
),
559 I40E_GLV_MPRCL(stat_idx
),
560 vsi
->stat_offsets_loaded
,
561 &oes
->rx_multicast
, &es
->rx_multicast
);
562 i40e_stat_update48(hw
, I40E_GLV_BPRCH(stat_idx
),
563 I40E_GLV_BPRCL(stat_idx
),
564 vsi
->stat_offsets_loaded
,
565 &oes
->rx_broadcast
, &es
->rx_broadcast
);
567 i40e_stat_update48(hw
, I40E_GLV_GOTCH(stat_idx
),
568 I40E_GLV_GOTCL(stat_idx
),
569 vsi
->stat_offsets_loaded
,
570 &oes
->tx_bytes
, &es
->tx_bytes
);
571 i40e_stat_update48(hw
, I40E_GLV_UPTCH(stat_idx
),
572 I40E_GLV_UPTCL(stat_idx
),
573 vsi
->stat_offsets_loaded
,
574 &oes
->tx_unicast
, &es
->tx_unicast
);
575 i40e_stat_update48(hw
, I40E_GLV_MPTCH(stat_idx
),
576 I40E_GLV_MPTCL(stat_idx
),
577 vsi
->stat_offsets_loaded
,
578 &oes
->tx_multicast
, &es
->tx_multicast
);
579 i40e_stat_update48(hw
, I40E_GLV_BPTCH(stat_idx
),
580 I40E_GLV_BPTCL(stat_idx
),
581 vsi
->stat_offsets_loaded
,
582 &oes
->tx_broadcast
, &es
->tx_broadcast
);
583 vsi
->stat_offsets_loaded
= true;
587 * i40e_update_veb_stats - Update Switch component statistics
588 * @veb: the VEB being updated
590 static void i40e_update_veb_stats(struct i40e_veb
*veb
)
592 struct i40e_pf
*pf
= veb
->pf
;
593 struct i40e_hw
*hw
= &pf
->hw
;
594 struct i40e_eth_stats
*oes
;
595 struct i40e_eth_stats
*es
; /* device's eth stats */
598 idx
= veb
->stats_idx
;
600 oes
= &veb
->stats_offsets
;
602 /* Gather up the stats that the hw collects */
603 i40e_stat_update32(hw
, I40E_GLSW_TDPC(idx
),
604 veb
->stat_offsets_loaded
,
605 &oes
->tx_discards
, &es
->tx_discards
);
606 if (hw
->revision_id
> 0)
607 i40e_stat_update32(hw
, I40E_GLSW_RUPP(idx
),
608 veb
->stat_offsets_loaded
,
609 &oes
->rx_unknown_protocol
,
610 &es
->rx_unknown_protocol
);
611 i40e_stat_update48(hw
, I40E_GLSW_GORCH(idx
), I40E_GLSW_GORCL(idx
),
612 veb
->stat_offsets_loaded
,
613 &oes
->rx_bytes
, &es
->rx_bytes
);
614 i40e_stat_update48(hw
, I40E_GLSW_UPRCH(idx
), I40E_GLSW_UPRCL(idx
),
615 veb
->stat_offsets_loaded
,
616 &oes
->rx_unicast
, &es
->rx_unicast
);
617 i40e_stat_update48(hw
, I40E_GLSW_MPRCH(idx
), I40E_GLSW_MPRCL(idx
),
618 veb
->stat_offsets_loaded
,
619 &oes
->rx_multicast
, &es
->rx_multicast
);
620 i40e_stat_update48(hw
, I40E_GLSW_BPRCH(idx
), I40E_GLSW_BPRCL(idx
),
621 veb
->stat_offsets_loaded
,
622 &oes
->rx_broadcast
, &es
->rx_broadcast
);
624 i40e_stat_update48(hw
, I40E_GLSW_GOTCH(idx
), I40E_GLSW_GOTCL(idx
),
625 veb
->stat_offsets_loaded
,
626 &oes
->tx_bytes
, &es
->tx_bytes
);
627 i40e_stat_update48(hw
, I40E_GLSW_UPTCH(idx
), I40E_GLSW_UPTCL(idx
),
628 veb
->stat_offsets_loaded
,
629 &oes
->tx_unicast
, &es
->tx_unicast
);
630 i40e_stat_update48(hw
, I40E_GLSW_MPTCH(idx
), I40E_GLSW_MPTCL(idx
),
631 veb
->stat_offsets_loaded
,
632 &oes
->tx_multicast
, &es
->tx_multicast
);
633 i40e_stat_update48(hw
, I40E_GLSW_BPTCH(idx
), I40E_GLSW_BPTCL(idx
),
634 veb
->stat_offsets_loaded
,
635 &oes
->tx_broadcast
, &es
->tx_broadcast
);
636 veb
->stat_offsets_loaded
= true;
640 * i40e_update_link_xoff_rx - Update XOFF received in link flow control mode
641 * @pf: the corresponding PF
643 * Update the Rx XOFF counter (PAUSE frames) in link flow control mode
645 static void i40e_update_link_xoff_rx(struct i40e_pf
*pf
)
647 struct i40e_hw_port_stats
*osd
= &pf
->stats_offsets
;
648 struct i40e_hw_port_stats
*nsd
= &pf
->stats
;
649 struct i40e_hw
*hw
= &pf
->hw
;
653 if ((hw
->fc
.current_mode
!= I40E_FC_FULL
) &&
654 (hw
->fc
.current_mode
!= I40E_FC_RX_PAUSE
))
657 xoff
= nsd
->link_xoff_rx
;
658 i40e_stat_update32(hw
, I40E_GLPRT_LXOFFRXC(hw
->port
),
659 pf
->stat_offsets_loaded
,
660 &osd
->link_xoff_rx
, &nsd
->link_xoff_rx
);
662 /* No new LFC xoff rx */
663 if (!(nsd
->link_xoff_rx
- xoff
))
666 /* Clear the __I40E_HANG_CHECK_ARMED bit for all Tx rings */
667 for (v
= 0; v
< pf
->num_alloc_vsi
; v
++) {
668 struct i40e_vsi
*vsi
= pf
->vsi
[v
];
670 if (!vsi
|| !vsi
->tx_rings
[0])
673 for (i
= 0; i
< vsi
->num_queue_pairs
; i
++) {
674 struct i40e_ring
*ring
= vsi
->tx_rings
[i
];
675 clear_bit(__I40E_HANG_CHECK_ARMED
, &ring
->state
);
681 * i40e_update_prio_xoff_rx - Update XOFF received in PFC mode
682 * @pf: the corresponding PF
684 * Update the Rx XOFF counter (PAUSE frames) in PFC mode
686 static void i40e_update_prio_xoff_rx(struct i40e_pf
*pf
)
688 struct i40e_hw_port_stats
*osd
= &pf
->stats_offsets
;
689 struct i40e_hw_port_stats
*nsd
= &pf
->stats
;
690 bool xoff
[I40E_MAX_TRAFFIC_CLASS
] = {false};
691 struct i40e_dcbx_config
*dcb_cfg
;
692 struct i40e_hw
*hw
= &pf
->hw
;
696 dcb_cfg
= &hw
->local_dcbx_config
;
698 /* See if DCB enabled with PFC TC */
699 if (!(pf
->flags
& I40E_FLAG_DCB_ENABLED
) ||
700 !(dcb_cfg
->pfc
.pfcenable
)) {
701 i40e_update_link_xoff_rx(pf
);
705 for (i
= 0; i
< I40E_MAX_USER_PRIORITY
; i
++) {
706 u64 prio_xoff
= nsd
->priority_xoff_rx
[i
];
707 i40e_stat_update32(hw
, I40E_GLPRT_PXOFFRXC(hw
->port
, i
),
708 pf
->stat_offsets_loaded
,
709 &osd
->priority_xoff_rx
[i
],
710 &nsd
->priority_xoff_rx
[i
]);
712 /* No new PFC xoff rx */
713 if (!(nsd
->priority_xoff_rx
[i
] - prio_xoff
))
715 /* Get the TC for given priority */
716 tc
= dcb_cfg
->etscfg
.prioritytable
[i
];
720 /* Clear the __I40E_HANG_CHECK_ARMED bit for Tx rings */
721 for (v
= 0; v
< pf
->num_alloc_vsi
; v
++) {
722 struct i40e_vsi
*vsi
= pf
->vsi
[v
];
724 if (!vsi
|| !vsi
->tx_rings
[0])
727 for (i
= 0; i
< vsi
->num_queue_pairs
; i
++) {
728 struct i40e_ring
*ring
= vsi
->tx_rings
[i
];
732 clear_bit(__I40E_HANG_CHECK_ARMED
,
739 * i40e_update_vsi_stats - Update the vsi statistics counters.
740 * @vsi: the VSI to be updated
742 * There are a few instances where we store the same stat in a
743 * couple of different structs. This is partly because we have
744 * the netdev stats that need to be filled out, which is slightly
745 * different from the "eth_stats" defined by the chip and used in
746 * VF communications. We sort it out here.
748 static void i40e_update_vsi_stats(struct i40e_vsi
*vsi
)
750 struct i40e_pf
*pf
= vsi
->back
;
751 struct rtnl_link_stats64
*ons
;
752 struct rtnl_link_stats64
*ns
; /* netdev stats */
753 struct i40e_eth_stats
*oes
;
754 struct i40e_eth_stats
*es
; /* device's eth stats */
755 u32 tx_restart
, tx_busy
;
761 if (test_bit(__I40E_DOWN
, &vsi
->state
) ||
762 test_bit(__I40E_CONFIG_BUSY
, &pf
->state
))
765 ns
= i40e_get_vsi_stats_struct(vsi
);
766 ons
= &vsi
->net_stats_offsets
;
767 es
= &vsi
->eth_stats
;
768 oes
= &vsi
->eth_stats_offsets
;
770 /* Gather up the netdev and vsi stats that the driver collects
771 * on the fly during packet processing
775 tx_restart
= tx_busy
= 0;
779 for (q
= 0; q
< vsi
->num_queue_pairs
; q
++) {
785 p
= ACCESS_ONCE(vsi
->tx_rings
[q
]);
788 start
= u64_stats_fetch_begin_irq(&p
->syncp
);
789 packets
= p
->stats
.packets
;
790 bytes
= p
->stats
.bytes
;
791 } while (u64_stats_fetch_retry_irq(&p
->syncp
, start
));
794 tx_restart
+= p
->tx_stats
.restart_queue
;
795 tx_busy
+= p
->tx_stats
.tx_busy
;
797 /* Rx queue is part of the same block as Tx queue */
800 start
= u64_stats_fetch_begin_irq(&p
->syncp
);
801 packets
= p
->stats
.packets
;
802 bytes
= p
->stats
.bytes
;
803 } while (u64_stats_fetch_retry_irq(&p
->syncp
, start
));
806 rx_buf
+= p
->rx_stats
.alloc_buff_failed
;
807 rx_page
+= p
->rx_stats
.alloc_page_failed
;
810 vsi
->tx_restart
= tx_restart
;
811 vsi
->tx_busy
= tx_busy
;
812 vsi
->rx_page_failed
= rx_page
;
813 vsi
->rx_buf_failed
= rx_buf
;
815 ns
->rx_packets
= rx_p
;
817 ns
->tx_packets
= tx_p
;
820 /* update netdev stats from eth stats */
821 i40e_update_eth_stats(vsi
);
822 ons
->tx_errors
= oes
->tx_errors
;
823 ns
->tx_errors
= es
->tx_errors
;
824 ons
->multicast
= oes
->rx_multicast
;
825 ns
->multicast
= es
->rx_multicast
;
826 ons
->rx_dropped
= oes
->rx_discards
;
827 ns
->rx_dropped
= es
->rx_discards
;
828 ons
->tx_dropped
= oes
->tx_discards
;
829 ns
->tx_dropped
= es
->tx_discards
;
831 /* pull in a couple PF stats if this is the main vsi */
832 if (vsi
== pf
->vsi
[pf
->lan_vsi
]) {
833 ns
->rx_crc_errors
= pf
->stats
.crc_errors
;
834 ns
->rx_errors
= pf
->stats
.crc_errors
+ pf
->stats
.illegal_bytes
;
835 ns
->rx_length_errors
= pf
->stats
.rx_length_errors
;
840 * i40e_update_pf_stats - Update the pf statistics counters.
841 * @pf: the PF to be updated
843 static void i40e_update_pf_stats(struct i40e_pf
*pf
)
845 struct i40e_hw_port_stats
*osd
= &pf
->stats_offsets
;
846 struct i40e_hw_port_stats
*nsd
= &pf
->stats
;
847 struct i40e_hw
*hw
= &pf
->hw
;
851 i40e_stat_update48(hw
, I40E_GLPRT_GORCH(hw
->port
),
852 I40E_GLPRT_GORCL(hw
->port
),
853 pf
->stat_offsets_loaded
,
854 &osd
->eth
.rx_bytes
, &nsd
->eth
.rx_bytes
);
855 i40e_stat_update48(hw
, I40E_GLPRT_GOTCH(hw
->port
),
856 I40E_GLPRT_GOTCL(hw
->port
),
857 pf
->stat_offsets_loaded
,
858 &osd
->eth
.tx_bytes
, &nsd
->eth
.tx_bytes
);
859 i40e_stat_update32(hw
, I40E_GLPRT_RDPC(hw
->port
),
860 pf
->stat_offsets_loaded
,
861 &osd
->eth
.rx_discards
,
862 &nsd
->eth
.rx_discards
);
863 i40e_stat_update32(hw
, I40E_GLPRT_TDPC(hw
->port
),
864 pf
->stat_offsets_loaded
,
865 &osd
->eth
.tx_discards
,
866 &nsd
->eth
.tx_discards
);
868 i40e_stat_update48(hw
, I40E_GLPRT_UPRCH(hw
->port
),
869 I40E_GLPRT_UPRCL(hw
->port
),
870 pf
->stat_offsets_loaded
,
871 &osd
->eth
.rx_unicast
,
872 &nsd
->eth
.rx_unicast
);
873 i40e_stat_update48(hw
, I40E_GLPRT_MPRCH(hw
->port
),
874 I40E_GLPRT_MPRCL(hw
->port
),
875 pf
->stat_offsets_loaded
,
876 &osd
->eth
.rx_multicast
,
877 &nsd
->eth
.rx_multicast
);
878 i40e_stat_update48(hw
, I40E_GLPRT_BPRCH(hw
->port
),
879 I40E_GLPRT_BPRCL(hw
->port
),
880 pf
->stat_offsets_loaded
,
881 &osd
->eth
.rx_broadcast
,
882 &nsd
->eth
.rx_broadcast
);
883 i40e_stat_update48(hw
, I40E_GLPRT_UPTCH(hw
->port
),
884 I40E_GLPRT_UPTCL(hw
->port
),
885 pf
->stat_offsets_loaded
,
886 &osd
->eth
.tx_unicast
,
887 &nsd
->eth
.tx_unicast
);
888 i40e_stat_update48(hw
, I40E_GLPRT_MPTCH(hw
->port
),
889 I40E_GLPRT_MPTCL(hw
->port
),
890 pf
->stat_offsets_loaded
,
891 &osd
->eth
.tx_multicast
,
892 &nsd
->eth
.tx_multicast
);
893 i40e_stat_update48(hw
, I40E_GLPRT_BPTCH(hw
->port
),
894 I40E_GLPRT_BPTCL(hw
->port
),
895 pf
->stat_offsets_loaded
,
896 &osd
->eth
.tx_broadcast
,
897 &nsd
->eth
.tx_broadcast
);
899 i40e_stat_update32(hw
, I40E_GLPRT_TDOLD(hw
->port
),
900 pf
->stat_offsets_loaded
,
901 &osd
->tx_dropped_link_down
,
902 &nsd
->tx_dropped_link_down
);
904 i40e_stat_update32(hw
, I40E_GLPRT_CRCERRS(hw
->port
),
905 pf
->stat_offsets_loaded
,
906 &osd
->crc_errors
, &nsd
->crc_errors
);
908 i40e_stat_update32(hw
, I40E_GLPRT_ILLERRC(hw
->port
),
909 pf
->stat_offsets_loaded
,
910 &osd
->illegal_bytes
, &nsd
->illegal_bytes
);
912 i40e_stat_update32(hw
, I40E_GLPRT_MLFC(hw
->port
),
913 pf
->stat_offsets_loaded
,
914 &osd
->mac_local_faults
,
915 &nsd
->mac_local_faults
);
916 i40e_stat_update32(hw
, I40E_GLPRT_MRFC(hw
->port
),
917 pf
->stat_offsets_loaded
,
918 &osd
->mac_remote_faults
,
919 &nsd
->mac_remote_faults
);
921 i40e_stat_update32(hw
, I40E_GLPRT_RLEC(hw
->port
),
922 pf
->stat_offsets_loaded
,
923 &osd
->rx_length_errors
,
924 &nsd
->rx_length_errors
);
926 i40e_stat_update32(hw
, I40E_GLPRT_LXONRXC(hw
->port
),
927 pf
->stat_offsets_loaded
,
928 &osd
->link_xon_rx
, &nsd
->link_xon_rx
);
929 i40e_stat_update32(hw
, I40E_GLPRT_LXONTXC(hw
->port
),
930 pf
->stat_offsets_loaded
,
931 &osd
->link_xon_tx
, &nsd
->link_xon_tx
);
932 i40e_update_prio_xoff_rx(pf
); /* handles I40E_GLPRT_LXOFFRXC */
933 i40e_stat_update32(hw
, I40E_GLPRT_LXOFFTXC(hw
->port
),
934 pf
->stat_offsets_loaded
,
935 &osd
->link_xoff_tx
, &nsd
->link_xoff_tx
);
937 for (i
= 0; i
< 8; i
++) {
938 i40e_stat_update32(hw
, I40E_GLPRT_PXONRXC(hw
->port
, i
),
939 pf
->stat_offsets_loaded
,
940 &osd
->priority_xon_rx
[i
],
941 &nsd
->priority_xon_rx
[i
]);
942 i40e_stat_update32(hw
, I40E_GLPRT_PXONTXC(hw
->port
, i
),
943 pf
->stat_offsets_loaded
,
944 &osd
->priority_xon_tx
[i
],
945 &nsd
->priority_xon_tx
[i
]);
946 i40e_stat_update32(hw
, I40E_GLPRT_PXOFFTXC(hw
->port
, i
),
947 pf
->stat_offsets_loaded
,
948 &osd
->priority_xoff_tx
[i
],
949 &nsd
->priority_xoff_tx
[i
]);
950 i40e_stat_update32(hw
,
951 I40E_GLPRT_RXON2OFFCNT(hw
->port
, i
),
952 pf
->stat_offsets_loaded
,
953 &osd
->priority_xon_2_xoff
[i
],
954 &nsd
->priority_xon_2_xoff
[i
]);
957 i40e_stat_update48(hw
, I40E_GLPRT_PRC64H(hw
->port
),
958 I40E_GLPRT_PRC64L(hw
->port
),
959 pf
->stat_offsets_loaded
,
960 &osd
->rx_size_64
, &nsd
->rx_size_64
);
961 i40e_stat_update48(hw
, I40E_GLPRT_PRC127H(hw
->port
),
962 I40E_GLPRT_PRC127L(hw
->port
),
963 pf
->stat_offsets_loaded
,
964 &osd
->rx_size_127
, &nsd
->rx_size_127
);
965 i40e_stat_update48(hw
, I40E_GLPRT_PRC255H(hw
->port
),
966 I40E_GLPRT_PRC255L(hw
->port
),
967 pf
->stat_offsets_loaded
,
968 &osd
->rx_size_255
, &nsd
->rx_size_255
);
969 i40e_stat_update48(hw
, I40E_GLPRT_PRC511H(hw
->port
),
970 I40E_GLPRT_PRC511L(hw
->port
),
971 pf
->stat_offsets_loaded
,
972 &osd
->rx_size_511
, &nsd
->rx_size_511
);
973 i40e_stat_update48(hw
, I40E_GLPRT_PRC1023H(hw
->port
),
974 I40E_GLPRT_PRC1023L(hw
->port
),
975 pf
->stat_offsets_loaded
,
976 &osd
->rx_size_1023
, &nsd
->rx_size_1023
);
977 i40e_stat_update48(hw
, I40E_GLPRT_PRC1522H(hw
->port
),
978 I40E_GLPRT_PRC1522L(hw
->port
),
979 pf
->stat_offsets_loaded
,
980 &osd
->rx_size_1522
, &nsd
->rx_size_1522
);
981 i40e_stat_update48(hw
, I40E_GLPRT_PRC9522H(hw
->port
),
982 I40E_GLPRT_PRC9522L(hw
->port
),
983 pf
->stat_offsets_loaded
,
984 &osd
->rx_size_big
, &nsd
->rx_size_big
);
986 i40e_stat_update48(hw
, I40E_GLPRT_PTC64H(hw
->port
),
987 I40E_GLPRT_PTC64L(hw
->port
),
988 pf
->stat_offsets_loaded
,
989 &osd
->tx_size_64
, &nsd
->tx_size_64
);
990 i40e_stat_update48(hw
, I40E_GLPRT_PTC127H(hw
->port
),
991 I40E_GLPRT_PTC127L(hw
->port
),
992 pf
->stat_offsets_loaded
,
993 &osd
->tx_size_127
, &nsd
->tx_size_127
);
994 i40e_stat_update48(hw
, I40E_GLPRT_PTC255H(hw
->port
),
995 I40E_GLPRT_PTC255L(hw
->port
),
996 pf
->stat_offsets_loaded
,
997 &osd
->tx_size_255
, &nsd
->tx_size_255
);
998 i40e_stat_update48(hw
, I40E_GLPRT_PTC511H(hw
->port
),
999 I40E_GLPRT_PTC511L(hw
->port
),
1000 pf
->stat_offsets_loaded
,
1001 &osd
->tx_size_511
, &nsd
->tx_size_511
);
1002 i40e_stat_update48(hw
, I40E_GLPRT_PTC1023H(hw
->port
),
1003 I40E_GLPRT_PTC1023L(hw
->port
),
1004 pf
->stat_offsets_loaded
,
1005 &osd
->tx_size_1023
, &nsd
->tx_size_1023
);
1006 i40e_stat_update48(hw
, I40E_GLPRT_PTC1522H(hw
->port
),
1007 I40E_GLPRT_PTC1522L(hw
->port
),
1008 pf
->stat_offsets_loaded
,
1009 &osd
->tx_size_1522
, &nsd
->tx_size_1522
);
1010 i40e_stat_update48(hw
, I40E_GLPRT_PTC9522H(hw
->port
),
1011 I40E_GLPRT_PTC9522L(hw
->port
),
1012 pf
->stat_offsets_loaded
,
1013 &osd
->tx_size_big
, &nsd
->tx_size_big
);
1015 i40e_stat_update32(hw
, I40E_GLPRT_RUC(hw
->port
),
1016 pf
->stat_offsets_loaded
,
1017 &osd
->rx_undersize
, &nsd
->rx_undersize
);
1018 i40e_stat_update32(hw
, I40E_GLPRT_RFC(hw
->port
),
1019 pf
->stat_offsets_loaded
,
1020 &osd
->rx_fragments
, &nsd
->rx_fragments
);
1021 i40e_stat_update32(hw
, I40E_GLPRT_ROC(hw
->port
),
1022 pf
->stat_offsets_loaded
,
1023 &osd
->rx_oversize
, &nsd
->rx_oversize
);
1024 i40e_stat_update32(hw
, I40E_GLPRT_RJC(hw
->port
),
1025 pf
->stat_offsets_loaded
,
1026 &osd
->rx_jabber
, &nsd
->rx_jabber
);
1029 i40e_stat_update32(hw
, I40E_GLQF_PCNT(pf
->fd_atr_cnt_idx
),
1030 pf
->stat_offsets_loaded
,
1031 &osd
->fd_atr_match
, &nsd
->fd_atr_match
);
1032 i40e_stat_update32(hw
, I40E_GLQF_PCNT(pf
->fd_sb_cnt_idx
),
1033 pf
->stat_offsets_loaded
,
1034 &osd
->fd_sb_match
, &nsd
->fd_sb_match
);
1036 val
= rd32(hw
, I40E_PRTPM_EEE_STAT
);
1037 nsd
->tx_lpi_status
=
1038 (val
& I40E_PRTPM_EEE_STAT_TX_LPI_STATUS_MASK
) >>
1039 I40E_PRTPM_EEE_STAT_TX_LPI_STATUS_SHIFT
;
1040 nsd
->rx_lpi_status
=
1041 (val
& I40E_PRTPM_EEE_STAT_RX_LPI_STATUS_MASK
) >>
1042 I40E_PRTPM_EEE_STAT_RX_LPI_STATUS_SHIFT
;
1043 i40e_stat_update32(hw
, I40E_PRTPM_TLPIC
,
1044 pf
->stat_offsets_loaded
,
1045 &osd
->tx_lpi_count
, &nsd
->tx_lpi_count
);
1046 i40e_stat_update32(hw
, I40E_PRTPM_RLPIC
,
1047 pf
->stat_offsets_loaded
,
1048 &osd
->rx_lpi_count
, &nsd
->rx_lpi_count
);
1050 pf
->stat_offsets_loaded
= true;
1054 * i40e_update_stats - Update the various statistics counters.
1055 * @vsi: the VSI to be updated
1057 * Update the various stats for this VSI and its related entities.
1059 void i40e_update_stats(struct i40e_vsi
*vsi
)
1061 struct i40e_pf
*pf
= vsi
->back
;
1063 if (vsi
== pf
->vsi
[pf
->lan_vsi
])
1064 i40e_update_pf_stats(pf
);
1066 i40e_update_vsi_stats(vsi
);
1070 * i40e_find_filter - Search VSI filter list for specific mac/vlan filter
1071 * @vsi: the VSI to be searched
1072 * @macaddr: the MAC address
1074 * @is_vf: make sure its a vf filter, else doesn't matter
1075 * @is_netdev: make sure its a netdev filter, else doesn't matter
1077 * Returns ptr to the filter object or NULL
1079 static struct i40e_mac_filter
*i40e_find_filter(struct i40e_vsi
*vsi
,
1080 u8
*macaddr
, s16 vlan
,
1081 bool is_vf
, bool is_netdev
)
1083 struct i40e_mac_filter
*f
;
1085 if (!vsi
|| !macaddr
)
1088 list_for_each_entry(f
, &vsi
->mac_filter_list
, list
) {
1089 if ((ether_addr_equal(macaddr
, f
->macaddr
)) &&
1090 (vlan
== f
->vlan
) &&
1091 (!is_vf
|| f
->is_vf
) &&
1092 (!is_netdev
|| f
->is_netdev
))
1099 * i40e_find_mac - Find a mac addr in the macvlan filters list
1100 * @vsi: the VSI to be searched
1101 * @macaddr: the MAC address we are searching for
1102 * @is_vf: make sure its a vf filter, else doesn't matter
1103 * @is_netdev: make sure its a netdev filter, else doesn't matter
1105 * Returns the first filter with the provided MAC address or NULL if
1106 * MAC address was not found
1108 struct i40e_mac_filter
*i40e_find_mac(struct i40e_vsi
*vsi
, u8
*macaddr
,
1109 bool is_vf
, bool is_netdev
)
1111 struct i40e_mac_filter
*f
;
1113 if (!vsi
|| !macaddr
)
1116 list_for_each_entry(f
, &vsi
->mac_filter_list
, list
) {
1117 if ((ether_addr_equal(macaddr
, f
->macaddr
)) &&
1118 (!is_vf
|| f
->is_vf
) &&
1119 (!is_netdev
|| f
->is_netdev
))
1126 * i40e_is_vsi_in_vlan - Check if VSI is in vlan mode
1127 * @vsi: the VSI to be searched
1129 * Returns true if VSI is in vlan mode or false otherwise
1131 bool i40e_is_vsi_in_vlan(struct i40e_vsi
*vsi
)
1133 struct i40e_mac_filter
*f
;
1135 /* Only -1 for all the filters denotes not in vlan mode
1136 * so we have to go through all the list in order to make sure
1138 list_for_each_entry(f
, &vsi
->mac_filter_list
, list
) {
1147 * i40e_put_mac_in_vlan - Make macvlan filters from macaddrs and vlans
1148 * @vsi: the VSI to be searched
1149 * @macaddr: the mac address to be filtered
1150 * @is_vf: true if it is a vf
1151 * @is_netdev: true if it is a netdev
1153 * Goes through all the macvlan filters and adds a
1154 * macvlan filter for each unique vlan that already exists
1156 * Returns first filter found on success, else NULL
1158 struct i40e_mac_filter
*i40e_put_mac_in_vlan(struct i40e_vsi
*vsi
, u8
*macaddr
,
1159 bool is_vf
, bool is_netdev
)
1161 struct i40e_mac_filter
*f
;
1163 list_for_each_entry(f
, &vsi
->mac_filter_list
, list
) {
1164 if (!i40e_find_filter(vsi
, macaddr
, f
->vlan
,
1165 is_vf
, is_netdev
)) {
1166 if (!i40e_add_filter(vsi
, macaddr
, f
->vlan
,
1172 return list_first_entry_or_null(&vsi
->mac_filter_list
,
1173 struct i40e_mac_filter
, list
);
1177 * i40e_rm_default_mac_filter - Remove the default MAC filter set by NVM
1178 * @vsi: the PF Main VSI - inappropriate for any other VSI
1179 * @macaddr: the MAC address
1181 static void i40e_rm_default_mac_filter(struct i40e_vsi
*vsi
, u8
*macaddr
)
1183 struct i40e_aqc_remove_macvlan_element_data element
;
1184 struct i40e_pf
*pf
= vsi
->back
;
1187 /* Only appropriate for the PF main VSI */
1188 if (vsi
->type
!= I40E_VSI_MAIN
)
1191 ether_addr_copy(element
.mac_addr
, macaddr
);
1192 element
.vlan_tag
= 0;
1193 element
.flags
= I40E_AQC_MACVLAN_DEL_PERFECT_MATCH
|
1194 I40E_AQC_MACVLAN_DEL_IGNORE_VLAN
;
1195 aq_ret
= i40e_aq_remove_macvlan(&pf
->hw
, vsi
->seid
, &element
, 1, NULL
);
1197 dev_err(&pf
->pdev
->dev
, "Could not remove default MAC-VLAN\n");
1201 * i40e_add_filter - Add a mac/vlan filter to the VSI
1202 * @vsi: the VSI to be searched
1203 * @macaddr: the MAC address
1205 * @is_vf: make sure its a vf filter, else doesn't matter
1206 * @is_netdev: make sure its a netdev filter, else doesn't matter
1208 * Returns ptr to the filter object or NULL when no memory available.
1210 struct i40e_mac_filter
*i40e_add_filter(struct i40e_vsi
*vsi
,
1211 u8
*macaddr
, s16 vlan
,
1212 bool is_vf
, bool is_netdev
)
1214 struct i40e_mac_filter
*f
;
1216 if (!vsi
|| !macaddr
)
1219 f
= i40e_find_filter(vsi
, macaddr
, vlan
, is_vf
, is_netdev
);
1221 f
= kzalloc(sizeof(*f
), GFP_ATOMIC
);
1223 goto add_filter_out
;
1225 ether_addr_copy(f
->macaddr
, macaddr
);
1229 INIT_LIST_HEAD(&f
->list
);
1230 list_add(&f
->list
, &vsi
->mac_filter_list
);
1233 /* increment counter and add a new flag if needed */
1239 } else if (is_netdev
) {
1240 if (!f
->is_netdev
) {
1241 f
->is_netdev
= true;
1248 /* changed tells sync_filters_subtask to
1249 * push the filter down to the firmware
1252 vsi
->flags
|= I40E_VSI_FLAG_FILTER_CHANGED
;
1253 vsi
->back
->flags
|= I40E_FLAG_FILTER_SYNC
;
1261 * i40e_del_filter - Remove a mac/vlan filter from the VSI
1262 * @vsi: the VSI to be searched
1263 * @macaddr: the MAC address
1265 * @is_vf: make sure it's a vf filter, else doesn't matter
1266 * @is_netdev: make sure it's a netdev filter, else doesn't matter
1268 void i40e_del_filter(struct i40e_vsi
*vsi
,
1269 u8
*macaddr
, s16 vlan
,
1270 bool is_vf
, bool is_netdev
)
1272 struct i40e_mac_filter
*f
;
1274 if (!vsi
|| !macaddr
)
1277 f
= i40e_find_filter(vsi
, macaddr
, vlan
, is_vf
, is_netdev
);
1278 if (!f
|| f
->counter
== 0)
1286 } else if (is_netdev
) {
1288 f
->is_netdev
= false;
1292 /* make sure we don't remove a filter in use by vf or netdev */
1294 min_f
+= (f
->is_vf
? 1 : 0);
1295 min_f
+= (f
->is_netdev
? 1 : 0);
1297 if (f
->counter
> min_f
)
1301 /* counter == 0 tells sync_filters_subtask to
1302 * remove the filter from the firmware's list
1304 if (f
->counter
== 0) {
1306 vsi
->flags
|= I40E_VSI_FLAG_FILTER_CHANGED
;
1307 vsi
->back
->flags
|= I40E_FLAG_FILTER_SYNC
;
1312 * i40e_set_mac - NDO callback to set mac address
1313 * @netdev: network interface device structure
1314 * @p: pointer to an address structure
1316 * Returns 0 on success, negative on failure
1318 static int i40e_set_mac(struct net_device
*netdev
, void *p
)
1320 struct i40e_netdev_priv
*np
= netdev_priv(netdev
);
1321 struct i40e_vsi
*vsi
= np
->vsi
;
1322 struct sockaddr
*addr
= p
;
1323 struct i40e_mac_filter
*f
;
1325 if (!is_valid_ether_addr(addr
->sa_data
))
1326 return -EADDRNOTAVAIL
;
1328 netdev_info(netdev
, "set mac address=%pM\n", addr
->sa_data
);
1330 if (test_bit(__I40E_DOWN
, &vsi
->back
->state
) ||
1331 test_bit(__I40E_RESET_RECOVERY_PENDING
, &vsi
->back
->state
))
1332 return -EADDRNOTAVAIL
;
1334 if (vsi
->type
== I40E_VSI_MAIN
) {
1336 ret
= i40e_aq_mac_address_write(&vsi
->back
->hw
,
1337 I40E_AQC_WRITE_TYPE_LAA_WOL
,
1338 addr
->sa_data
, NULL
);
1341 "Addr change for Main VSI failed: %d\n",
1343 return -EADDRNOTAVAIL
;
1347 f
= i40e_find_mac(vsi
, addr
->sa_data
, false, true);
1349 /* In order to be sure to not drop any packets, add the
1350 * new address first then delete the old one.
1352 f
= i40e_add_filter(vsi
, addr
->sa_data
, I40E_VLAN_ANY
,
1357 i40e_sync_vsi_filters(vsi
);
1358 i40e_del_filter(vsi
, netdev
->dev_addr
, I40E_VLAN_ANY
,
1360 i40e_sync_vsi_filters(vsi
);
1364 if (!ether_addr_equal(netdev
->dev_addr
, addr
->sa_data
))
1365 ether_addr_copy(netdev
->dev_addr
, addr
->sa_data
);
1371 * i40e_vsi_setup_queue_map - Setup a VSI queue map based on enabled_tc
1372 * @vsi: the VSI being setup
1373 * @ctxt: VSI context structure
1374 * @enabled_tc: Enabled TCs bitmap
1375 * @is_add: True if called before Add VSI
1377 * Setup VSI queue mapping for enabled traffic classes.
1379 static void i40e_vsi_setup_queue_map(struct i40e_vsi
*vsi
,
1380 struct i40e_vsi_context
*ctxt
,
1384 struct i40e_pf
*pf
= vsi
->back
;
1394 sections
= I40E_AQ_VSI_PROP_QUEUE_MAP_VALID
;
1397 if (enabled_tc
&& (vsi
->back
->flags
& I40E_FLAG_DCB_ENABLED
)) {
1398 /* Find numtc from enabled TC bitmap */
1399 for (i
= 0; i
< I40E_MAX_TRAFFIC_CLASS
; i
++) {
1400 if (enabled_tc
& (1 << i
)) /* TC is enabled */
1404 dev_warn(&pf
->pdev
->dev
, "DCB is enabled but no TC enabled, forcing TC0\n");
1408 /* At least TC0 is enabled in case of non-DCB case */
1412 vsi
->tc_config
.numtc
= numtc
;
1413 vsi
->tc_config
.enabled_tc
= enabled_tc
? enabled_tc
: 1;
1414 /* Number of queues per enabled TC */
1415 num_tc_qps
= vsi
->alloc_queue_pairs
/numtc
;
1416 num_tc_qps
= min_t(int, num_tc_qps
, I40E_MAX_QUEUES_PER_TC
);
1418 /* Setup queue offset/count for all TCs for given VSI */
1419 for (i
= 0; i
< I40E_MAX_TRAFFIC_CLASS
; i
++) {
1420 /* See if the given TC is enabled for the given VSI */
1421 if (vsi
->tc_config
.enabled_tc
& (1 << i
)) { /* TC is enabled */
1424 switch (vsi
->type
) {
1426 qcount
= min_t(int, pf
->rss_size
, num_tc_qps
);
1429 case I40E_VSI_SRIOV
:
1430 case I40E_VSI_VMDQ2
:
1432 qcount
= num_tc_qps
;
1436 vsi
->tc_config
.tc_info
[i
].qoffset
= offset
;
1437 vsi
->tc_config
.tc_info
[i
].qcount
= qcount
;
1439 /* find the power-of-2 of the number of queue pairs */
1442 while (num_qps
&& ((1 << pow
) < qcount
)) {
1447 vsi
->tc_config
.tc_info
[i
].netdev_tc
= netdev_tc
++;
1449 (offset
<< I40E_AQ_VSI_TC_QUE_OFFSET_SHIFT
) |
1450 (pow
<< I40E_AQ_VSI_TC_QUE_NUMBER_SHIFT
);
1454 /* TC is not enabled so set the offset to
1455 * default queue and allocate one queue
1458 vsi
->tc_config
.tc_info
[i
].qoffset
= 0;
1459 vsi
->tc_config
.tc_info
[i
].qcount
= 1;
1460 vsi
->tc_config
.tc_info
[i
].netdev_tc
= 0;
1464 ctxt
->info
.tc_mapping
[i
] = cpu_to_le16(qmap
);
1467 /* Set actual Tx/Rx queue pairs */
1468 vsi
->num_queue_pairs
= offset
;
1470 /* Scheduler section valid can only be set for ADD VSI */
1472 sections
|= I40E_AQ_VSI_PROP_SCHED_VALID
;
1474 ctxt
->info
.up_enable_bits
= enabled_tc
;
1476 if (vsi
->type
== I40E_VSI_SRIOV
) {
1477 ctxt
->info
.mapping_flags
|=
1478 cpu_to_le16(I40E_AQ_VSI_QUE_MAP_NONCONTIG
);
1479 for (i
= 0; i
< vsi
->num_queue_pairs
; i
++)
1480 ctxt
->info
.queue_mapping
[i
] =
1481 cpu_to_le16(vsi
->base_queue
+ i
);
1483 ctxt
->info
.mapping_flags
|=
1484 cpu_to_le16(I40E_AQ_VSI_QUE_MAP_CONTIG
);
1485 ctxt
->info
.queue_mapping
[0] = cpu_to_le16(vsi
->base_queue
);
1487 ctxt
->info
.valid_sections
|= cpu_to_le16(sections
);
1491 * i40e_set_rx_mode - NDO callback to set the netdev filters
1492 * @netdev: network interface device structure
1494 static void i40e_set_rx_mode(struct net_device
*netdev
)
1496 struct i40e_netdev_priv
*np
= netdev_priv(netdev
);
1497 struct i40e_mac_filter
*f
, *ftmp
;
1498 struct i40e_vsi
*vsi
= np
->vsi
;
1499 struct netdev_hw_addr
*uca
;
1500 struct netdev_hw_addr
*mca
;
1501 struct netdev_hw_addr
*ha
;
1503 /* add addr if not already in the filter list */
1504 netdev_for_each_uc_addr(uca
, netdev
) {
1505 if (!i40e_find_mac(vsi
, uca
->addr
, false, true)) {
1506 if (i40e_is_vsi_in_vlan(vsi
))
1507 i40e_put_mac_in_vlan(vsi
, uca
->addr
,
1510 i40e_add_filter(vsi
, uca
->addr
, I40E_VLAN_ANY
,
1515 netdev_for_each_mc_addr(mca
, netdev
) {
1516 if (!i40e_find_mac(vsi
, mca
->addr
, false, true)) {
1517 if (i40e_is_vsi_in_vlan(vsi
))
1518 i40e_put_mac_in_vlan(vsi
, mca
->addr
,
1521 i40e_add_filter(vsi
, mca
->addr
, I40E_VLAN_ANY
,
1526 /* remove filter if not in netdev list */
1527 list_for_each_entry_safe(f
, ftmp
, &vsi
->mac_filter_list
, list
) {
1533 if (is_multicast_ether_addr(f
->macaddr
)) {
1534 netdev_for_each_mc_addr(mca
, netdev
) {
1535 if (ether_addr_equal(mca
->addr
, f
->macaddr
)) {
1541 netdev_for_each_uc_addr(uca
, netdev
) {
1542 if (ether_addr_equal(uca
->addr
, f
->macaddr
)) {
1548 for_each_dev_addr(netdev
, ha
) {
1549 if (ether_addr_equal(ha
->addr
, f
->macaddr
)) {
1557 vsi
, f
->macaddr
, I40E_VLAN_ANY
, false, true);
1560 /* check for other flag changes */
1561 if (vsi
->current_netdev_flags
!= vsi
->netdev
->flags
) {
1562 vsi
->flags
|= I40E_VSI_FLAG_FILTER_CHANGED
;
1563 vsi
->back
->flags
|= I40E_FLAG_FILTER_SYNC
;
1568 * i40e_sync_vsi_filters - Update the VSI filter list to the HW
1569 * @vsi: ptr to the VSI
1571 * Push any outstanding VSI filter changes through the AdminQ.
1573 * Returns 0 or error value
1575 int i40e_sync_vsi_filters(struct i40e_vsi
*vsi
)
1577 struct i40e_mac_filter
*f
, *ftmp
;
1578 bool promisc_forced_on
= false;
1579 bool add_happened
= false;
1580 int filter_list_len
= 0;
1581 u32 changed_flags
= 0;
1582 i40e_status aq_ret
= 0;
1588 /* empty array typed pointers, kcalloc later */
1589 struct i40e_aqc_add_macvlan_element_data
*add_list
;
1590 struct i40e_aqc_remove_macvlan_element_data
*del_list
;
1592 while (test_and_set_bit(__I40E_CONFIG_BUSY
, &vsi
->state
))
1593 usleep_range(1000, 2000);
1597 changed_flags
= vsi
->current_netdev_flags
^ vsi
->netdev
->flags
;
1598 vsi
->current_netdev_flags
= vsi
->netdev
->flags
;
1601 if (vsi
->flags
& I40E_VSI_FLAG_FILTER_CHANGED
) {
1602 vsi
->flags
&= ~I40E_VSI_FLAG_FILTER_CHANGED
;
1604 filter_list_len
= pf
->hw
.aq
.asq_buf_size
/
1605 sizeof(struct i40e_aqc_remove_macvlan_element_data
);
1606 del_list
= kcalloc(filter_list_len
,
1607 sizeof(struct i40e_aqc_remove_macvlan_element_data
),
1612 list_for_each_entry_safe(f
, ftmp
, &vsi
->mac_filter_list
, list
) {
1616 if (f
->counter
!= 0)
1621 /* add to delete list */
1622 ether_addr_copy(del_list
[num_del
].mac_addr
, f
->macaddr
);
1623 del_list
[num_del
].vlan_tag
=
1624 cpu_to_le16((u16
)(f
->vlan
==
1625 I40E_VLAN_ANY
? 0 : f
->vlan
));
1627 cmd_flags
|= I40E_AQC_MACVLAN_DEL_PERFECT_MATCH
;
1628 del_list
[num_del
].flags
= cmd_flags
;
1631 /* unlink from filter list */
1635 /* flush a full buffer */
1636 if (num_del
== filter_list_len
) {
1637 aq_ret
= i40e_aq_remove_macvlan(&pf
->hw
,
1638 vsi
->seid
, del_list
, num_del
,
1641 memset(del_list
, 0, sizeof(*del_list
));
1644 pf
->hw
.aq
.asq_last_status
!=
1646 dev_info(&pf
->pdev
->dev
,
1647 "ignoring delete macvlan error, err %d, aq_err %d while flushing a full buffer\n",
1649 pf
->hw
.aq
.asq_last_status
);
1653 aq_ret
= i40e_aq_remove_macvlan(&pf
->hw
, vsi
->seid
,
1654 del_list
, num_del
, NULL
);
1658 pf
->hw
.aq
.asq_last_status
!= I40E_AQ_RC_ENOENT
)
1659 dev_info(&pf
->pdev
->dev
,
1660 "ignoring delete macvlan error, err %d, aq_err %d\n",
1661 aq_ret
, pf
->hw
.aq
.asq_last_status
);
1667 /* do all the adds now */
1668 filter_list_len
= pf
->hw
.aq
.asq_buf_size
/
1669 sizeof(struct i40e_aqc_add_macvlan_element_data
),
1670 add_list
= kcalloc(filter_list_len
,
1671 sizeof(struct i40e_aqc_add_macvlan_element_data
),
1676 list_for_each_entry_safe(f
, ftmp
, &vsi
->mac_filter_list
, list
) {
1680 if (f
->counter
== 0)
1683 add_happened
= true;
1686 /* add to add array */
1687 ether_addr_copy(add_list
[num_add
].mac_addr
, f
->macaddr
);
1688 add_list
[num_add
].vlan_tag
=
1690 (u16
)(f
->vlan
== I40E_VLAN_ANY
? 0 : f
->vlan
));
1691 add_list
[num_add
].queue_number
= 0;
1693 cmd_flags
|= I40E_AQC_MACVLAN_ADD_PERFECT_MATCH
;
1694 add_list
[num_add
].flags
= cpu_to_le16(cmd_flags
);
1697 /* flush a full buffer */
1698 if (num_add
== filter_list_len
) {
1699 aq_ret
= i40e_aq_add_macvlan(&pf
->hw
, vsi
->seid
,
1706 memset(add_list
, 0, sizeof(*add_list
));
1710 aq_ret
= i40e_aq_add_macvlan(&pf
->hw
, vsi
->seid
,
1711 add_list
, num_add
, NULL
);
1717 if (add_happened
&& (!aq_ret
)) {
1719 } else if (add_happened
&& (aq_ret
)) {
1720 dev_info(&pf
->pdev
->dev
,
1721 "add filter failed, err %d, aq_err %d\n",
1722 aq_ret
, pf
->hw
.aq
.asq_last_status
);
1723 if ((pf
->hw
.aq
.asq_last_status
== I40E_AQ_RC_ENOSPC
) &&
1724 !test_bit(__I40E_FILTER_OVERFLOW_PROMISC
,
1726 promisc_forced_on
= true;
1727 set_bit(__I40E_FILTER_OVERFLOW_PROMISC
,
1729 dev_info(&pf
->pdev
->dev
, "promiscuous mode forced on\n");
1734 /* check for changes in promiscuous modes */
1735 if (changed_flags
& IFF_ALLMULTI
) {
1736 bool cur_multipromisc
;
1737 cur_multipromisc
= !!(vsi
->current_netdev_flags
& IFF_ALLMULTI
);
1738 aq_ret
= i40e_aq_set_vsi_multicast_promiscuous(&vsi
->back
->hw
,
1743 dev_info(&pf
->pdev
->dev
,
1744 "set multi promisc failed, err %d, aq_err %d\n",
1745 aq_ret
, pf
->hw
.aq
.asq_last_status
);
1747 if ((changed_flags
& IFF_PROMISC
) || promisc_forced_on
) {
1749 cur_promisc
= (!!(vsi
->current_netdev_flags
& IFF_PROMISC
) ||
1750 test_bit(__I40E_FILTER_OVERFLOW_PROMISC
,
1752 aq_ret
= i40e_aq_set_vsi_unicast_promiscuous(&vsi
->back
->hw
,
1756 dev_info(&pf
->pdev
->dev
,
1757 "set uni promisc failed, err %d, aq_err %d\n",
1758 aq_ret
, pf
->hw
.aq
.asq_last_status
);
1759 aq_ret
= i40e_aq_set_vsi_broadcast(&vsi
->back
->hw
,
1763 dev_info(&pf
->pdev
->dev
,
1764 "set brdcast promisc failed, err %d, aq_err %d\n",
1765 aq_ret
, pf
->hw
.aq
.asq_last_status
);
1768 clear_bit(__I40E_CONFIG_BUSY
, &vsi
->state
);
1773 * i40e_sync_filters_subtask - Sync the VSI filter list with HW
1774 * @pf: board private structure
1776 static void i40e_sync_filters_subtask(struct i40e_pf
*pf
)
1780 if (!pf
|| !(pf
->flags
& I40E_FLAG_FILTER_SYNC
))
1782 pf
->flags
&= ~I40E_FLAG_FILTER_SYNC
;
1784 for (v
= 0; v
< pf
->num_alloc_vsi
; v
++) {
1786 (pf
->vsi
[v
]->flags
& I40E_VSI_FLAG_FILTER_CHANGED
))
1787 i40e_sync_vsi_filters(pf
->vsi
[v
]);
1792 * i40e_change_mtu - NDO callback to change the Maximum Transfer Unit
1793 * @netdev: network interface device structure
1794 * @new_mtu: new value for maximum frame size
1796 * Returns 0 on success, negative on failure
1798 static int i40e_change_mtu(struct net_device
*netdev
, int new_mtu
)
1800 struct i40e_netdev_priv
*np
= netdev_priv(netdev
);
1801 int max_frame
= new_mtu
+ ETH_HLEN
+ ETH_FCS_LEN
+ VLAN_HLEN
;
1802 struct i40e_vsi
*vsi
= np
->vsi
;
1804 /* MTU < 68 is an error and causes problems on some kernels */
1805 if ((new_mtu
< 68) || (max_frame
> I40E_MAX_RXBUFFER
))
1808 netdev_info(netdev
, "changing MTU from %d to %d\n",
1809 netdev
->mtu
, new_mtu
);
1810 netdev
->mtu
= new_mtu
;
1811 if (netif_running(netdev
))
1812 i40e_vsi_reinit_locked(vsi
);
1818 * i40e_ioctl - Access the hwtstamp interface
1819 * @netdev: network interface device structure
1820 * @ifr: interface request data
1821 * @cmd: ioctl command
1823 int i40e_ioctl(struct net_device
*netdev
, struct ifreq
*ifr
, int cmd
)
1825 struct i40e_netdev_priv
*np
= netdev_priv(netdev
);
1826 struct i40e_pf
*pf
= np
->vsi
->back
;
1830 return i40e_ptp_get_ts_config(pf
, ifr
);
1832 return i40e_ptp_set_ts_config(pf
, ifr
);
1839 * i40e_vlan_stripping_enable - Turn on vlan stripping for the VSI
1840 * @vsi: the vsi being adjusted
1842 void i40e_vlan_stripping_enable(struct i40e_vsi
*vsi
)
1844 struct i40e_vsi_context ctxt
;
1847 if ((vsi
->info
.valid_sections
&
1848 cpu_to_le16(I40E_AQ_VSI_PROP_VLAN_VALID
)) &&
1849 ((vsi
->info
.port_vlan_flags
& I40E_AQ_VSI_PVLAN_MODE_MASK
) == 0))
1850 return; /* already enabled */
1852 vsi
->info
.valid_sections
= cpu_to_le16(I40E_AQ_VSI_PROP_VLAN_VALID
);
1853 vsi
->info
.port_vlan_flags
= I40E_AQ_VSI_PVLAN_MODE_ALL
|
1854 I40E_AQ_VSI_PVLAN_EMOD_STR_BOTH
;
1856 ctxt
.seid
= vsi
->seid
;
1857 memcpy(&ctxt
.info
, &vsi
->info
, sizeof(vsi
->info
));
1858 ret
= i40e_aq_update_vsi_params(&vsi
->back
->hw
, &ctxt
, NULL
);
1860 dev_info(&vsi
->back
->pdev
->dev
,
1861 "%s: update vsi failed, aq_err=%d\n",
1862 __func__
, vsi
->back
->hw
.aq
.asq_last_status
);
1867 * i40e_vlan_stripping_disable - Turn off vlan stripping for the VSI
1868 * @vsi: the vsi being adjusted
1870 void i40e_vlan_stripping_disable(struct i40e_vsi
*vsi
)
1872 struct i40e_vsi_context ctxt
;
1875 if ((vsi
->info
.valid_sections
&
1876 cpu_to_le16(I40E_AQ_VSI_PROP_VLAN_VALID
)) &&
1877 ((vsi
->info
.port_vlan_flags
& I40E_AQ_VSI_PVLAN_EMOD_MASK
) ==
1878 I40E_AQ_VSI_PVLAN_EMOD_MASK
))
1879 return; /* already disabled */
1881 vsi
->info
.valid_sections
= cpu_to_le16(I40E_AQ_VSI_PROP_VLAN_VALID
);
1882 vsi
->info
.port_vlan_flags
= I40E_AQ_VSI_PVLAN_MODE_ALL
|
1883 I40E_AQ_VSI_PVLAN_EMOD_NOTHING
;
1885 ctxt
.seid
= vsi
->seid
;
1886 memcpy(&ctxt
.info
, &vsi
->info
, sizeof(vsi
->info
));
1887 ret
= i40e_aq_update_vsi_params(&vsi
->back
->hw
, &ctxt
, NULL
);
1889 dev_info(&vsi
->back
->pdev
->dev
,
1890 "%s: update vsi failed, aq_err=%d\n",
1891 __func__
, vsi
->back
->hw
.aq
.asq_last_status
);
1896 * i40e_vlan_rx_register - Setup or shutdown vlan offload
1897 * @netdev: network interface to be adjusted
1898 * @features: netdev features to test if VLAN offload is enabled or not
1900 static void i40e_vlan_rx_register(struct net_device
*netdev
, u32 features
)
1902 struct i40e_netdev_priv
*np
= netdev_priv(netdev
);
1903 struct i40e_vsi
*vsi
= np
->vsi
;
1905 if (features
& NETIF_F_HW_VLAN_CTAG_RX
)
1906 i40e_vlan_stripping_enable(vsi
);
1908 i40e_vlan_stripping_disable(vsi
);
1912 * i40e_vsi_add_vlan - Add vsi membership for given vlan
1913 * @vsi: the vsi being configured
1914 * @vid: vlan id to be added (0 = untagged only , -1 = any)
1916 int i40e_vsi_add_vlan(struct i40e_vsi
*vsi
, s16 vid
)
1918 struct i40e_mac_filter
*f
, *add_f
;
1919 bool is_netdev
, is_vf
;
1921 is_vf
= (vsi
->type
== I40E_VSI_SRIOV
);
1922 is_netdev
= !!(vsi
->netdev
);
1925 add_f
= i40e_add_filter(vsi
, vsi
->netdev
->dev_addr
, vid
,
1928 dev_info(&vsi
->back
->pdev
->dev
,
1929 "Could not add vlan filter %d for %pM\n",
1930 vid
, vsi
->netdev
->dev_addr
);
1935 list_for_each_entry(f
, &vsi
->mac_filter_list
, list
) {
1936 add_f
= i40e_add_filter(vsi
, f
->macaddr
, vid
, is_vf
, is_netdev
);
1938 dev_info(&vsi
->back
->pdev
->dev
,
1939 "Could not add vlan filter %d for %pM\n",
1945 /* Now if we add a vlan tag, make sure to check if it is the first
1946 * tag (i.e. a "tag" -1 does exist) and if so replace the -1 "tag"
1947 * with 0, so we now accept untagged and specified tagged traffic
1948 * (and not any taged and untagged)
1951 if (is_netdev
&& i40e_find_filter(vsi
, vsi
->netdev
->dev_addr
,
1953 is_vf
, is_netdev
)) {
1954 i40e_del_filter(vsi
, vsi
->netdev
->dev_addr
,
1955 I40E_VLAN_ANY
, is_vf
, is_netdev
);
1956 add_f
= i40e_add_filter(vsi
, vsi
->netdev
->dev_addr
, 0,
1959 dev_info(&vsi
->back
->pdev
->dev
,
1960 "Could not add filter 0 for %pM\n",
1961 vsi
->netdev
->dev_addr
);
1967 /* Do not assume that I40E_VLAN_ANY should be reset to VLAN 0 */
1968 if (vid
> 0 && !vsi
->info
.pvid
) {
1969 list_for_each_entry(f
, &vsi
->mac_filter_list
, list
) {
1970 if (i40e_find_filter(vsi
, f
->macaddr
, I40E_VLAN_ANY
,
1971 is_vf
, is_netdev
)) {
1972 i40e_del_filter(vsi
, f
->macaddr
, I40E_VLAN_ANY
,
1974 add_f
= i40e_add_filter(vsi
, f
->macaddr
,
1975 0, is_vf
, is_netdev
);
1977 dev_info(&vsi
->back
->pdev
->dev
,
1978 "Could not add filter 0 for %pM\n",
1986 if (test_bit(__I40E_DOWN
, &vsi
->back
->state
) ||
1987 test_bit(__I40E_RESET_RECOVERY_PENDING
, &vsi
->back
->state
))
1990 return i40e_sync_vsi_filters(vsi
);
1994 * i40e_vsi_kill_vlan - Remove vsi membership for given vlan
1995 * @vsi: the vsi being configured
1996 * @vid: vlan id to be removed (0 = untagged only , -1 = any)
1998 * Return: 0 on success or negative otherwise
2000 int i40e_vsi_kill_vlan(struct i40e_vsi
*vsi
, s16 vid
)
2002 struct net_device
*netdev
= vsi
->netdev
;
2003 struct i40e_mac_filter
*f
, *add_f
;
2004 bool is_vf
, is_netdev
;
2005 int filter_count
= 0;
2007 is_vf
= (vsi
->type
== I40E_VSI_SRIOV
);
2008 is_netdev
= !!(netdev
);
2011 i40e_del_filter(vsi
, netdev
->dev_addr
, vid
, is_vf
, is_netdev
);
2013 list_for_each_entry(f
, &vsi
->mac_filter_list
, list
)
2014 i40e_del_filter(vsi
, f
->macaddr
, vid
, is_vf
, is_netdev
);
2016 /* go through all the filters for this VSI and if there is only
2017 * vid == 0 it means there are no other filters, so vid 0 must
2018 * be replaced with -1. This signifies that we should from now
2019 * on accept any traffic (with any tag present, or untagged)
2021 list_for_each_entry(f
, &vsi
->mac_filter_list
, list
) {
2024 ether_addr_equal(netdev
->dev_addr
, f
->macaddr
))
2032 if (!filter_count
&& is_netdev
) {
2033 i40e_del_filter(vsi
, netdev
->dev_addr
, 0, is_vf
, is_netdev
);
2034 f
= i40e_add_filter(vsi
, netdev
->dev_addr
, I40E_VLAN_ANY
,
2037 dev_info(&vsi
->back
->pdev
->dev
,
2038 "Could not add filter %d for %pM\n",
2039 I40E_VLAN_ANY
, netdev
->dev_addr
);
2044 if (!filter_count
) {
2045 list_for_each_entry(f
, &vsi
->mac_filter_list
, list
) {
2046 i40e_del_filter(vsi
, f
->macaddr
, 0, is_vf
, is_netdev
);
2047 add_f
= i40e_add_filter(vsi
, f
->macaddr
, I40E_VLAN_ANY
,
2050 dev_info(&vsi
->back
->pdev
->dev
,
2051 "Could not add filter %d for %pM\n",
2052 I40E_VLAN_ANY
, f
->macaddr
);
2058 if (test_bit(__I40E_DOWN
, &vsi
->back
->state
) ||
2059 test_bit(__I40E_RESET_RECOVERY_PENDING
, &vsi
->back
->state
))
2062 return i40e_sync_vsi_filters(vsi
);
2066 * i40e_vlan_rx_add_vid - Add a vlan id filter to HW offload
2067 * @netdev: network interface to be adjusted
2068 * @vid: vlan id to be added
2070 * net_device_ops implementation for adding vlan ids
2072 static int i40e_vlan_rx_add_vid(struct net_device
*netdev
,
2073 __always_unused __be16 proto
, u16 vid
)
2075 struct i40e_netdev_priv
*np
= netdev_priv(netdev
);
2076 struct i40e_vsi
*vsi
= np
->vsi
;
2082 netdev_info(netdev
, "adding %pM vid=%d\n", netdev
->dev_addr
, vid
);
2084 /* If the network stack called us with vid = 0 then
2085 * it is asking to receive priority tagged packets with
2086 * vlan id 0. Our HW receives them by default when configured
2087 * to receive untagged packets so there is no need to add an
2088 * extra filter for vlan 0 tagged packets.
2091 ret
= i40e_vsi_add_vlan(vsi
, vid
);
2093 if (!ret
&& (vid
< VLAN_N_VID
))
2094 set_bit(vid
, vsi
->active_vlans
);
2100 * i40e_vlan_rx_kill_vid - Remove a vlan id filter from HW offload
2101 * @netdev: network interface to be adjusted
2102 * @vid: vlan id to be removed
2104 * net_device_ops implementation for removing vlan ids
2106 static int i40e_vlan_rx_kill_vid(struct net_device
*netdev
,
2107 __always_unused __be16 proto
, u16 vid
)
2109 struct i40e_netdev_priv
*np
= netdev_priv(netdev
);
2110 struct i40e_vsi
*vsi
= np
->vsi
;
2112 netdev_info(netdev
, "removing %pM vid=%d\n", netdev
->dev_addr
, vid
);
2114 /* return code is ignored as there is nothing a user
2115 * can do about failure to remove and a log message was
2116 * already printed from the other function
2118 i40e_vsi_kill_vlan(vsi
, vid
);
2120 clear_bit(vid
, vsi
->active_vlans
);
2126 * i40e_restore_vlan - Reinstate vlans when vsi/netdev comes back up
2127 * @vsi: the vsi being brought back up
2129 static void i40e_restore_vlan(struct i40e_vsi
*vsi
)
2136 i40e_vlan_rx_register(vsi
->netdev
, vsi
->netdev
->features
);
2138 for_each_set_bit(vid
, vsi
->active_vlans
, VLAN_N_VID
)
2139 i40e_vlan_rx_add_vid(vsi
->netdev
, htons(ETH_P_8021Q
),
2144 * i40e_vsi_add_pvid - Add pvid for the VSI
2145 * @vsi: the vsi being adjusted
2146 * @vid: the vlan id to set as a PVID
2148 int i40e_vsi_add_pvid(struct i40e_vsi
*vsi
, u16 vid
)
2150 struct i40e_vsi_context ctxt
;
2153 vsi
->info
.valid_sections
= cpu_to_le16(I40E_AQ_VSI_PROP_VLAN_VALID
);
2154 vsi
->info
.pvid
= cpu_to_le16(vid
);
2155 vsi
->info
.port_vlan_flags
= I40E_AQ_VSI_PVLAN_MODE_TAGGED
|
2156 I40E_AQ_VSI_PVLAN_INSERT_PVID
|
2157 I40E_AQ_VSI_PVLAN_EMOD_STR
;
2159 ctxt
.seid
= vsi
->seid
;
2160 memcpy(&ctxt
.info
, &vsi
->info
, sizeof(vsi
->info
));
2161 aq_ret
= i40e_aq_update_vsi_params(&vsi
->back
->hw
, &ctxt
, NULL
);
2163 dev_info(&vsi
->back
->pdev
->dev
,
2164 "%s: update vsi failed, aq_err=%d\n",
2165 __func__
, vsi
->back
->hw
.aq
.asq_last_status
);
2173 * i40e_vsi_remove_pvid - Remove the pvid from the VSI
2174 * @vsi: the vsi being adjusted
2176 * Just use the vlan_rx_register() service to put it back to normal
2178 void i40e_vsi_remove_pvid(struct i40e_vsi
*vsi
)
2180 i40e_vlan_stripping_disable(vsi
);
2186 * i40e_vsi_setup_tx_resources - Allocate VSI Tx queue resources
2187 * @vsi: ptr to the VSI
2189 * If this function returns with an error, then it's possible one or
2190 * more of the rings is populated (while the rest are not). It is the
2191 * callers duty to clean those orphaned rings.
2193 * Return 0 on success, negative on failure
2195 static int i40e_vsi_setup_tx_resources(struct i40e_vsi
*vsi
)
2199 for (i
= 0; i
< vsi
->num_queue_pairs
&& !err
; i
++)
2200 err
= i40e_setup_tx_descriptors(vsi
->tx_rings
[i
]);
2206 * i40e_vsi_free_tx_resources - Free Tx resources for VSI queues
2207 * @vsi: ptr to the VSI
2209 * Free VSI's transmit software resources
2211 static void i40e_vsi_free_tx_resources(struct i40e_vsi
*vsi
)
2218 for (i
= 0; i
< vsi
->num_queue_pairs
; i
++)
2219 if (vsi
->tx_rings
[i
] && vsi
->tx_rings
[i
]->desc
)
2220 i40e_free_tx_resources(vsi
->tx_rings
[i
]);
2224 * i40e_vsi_setup_rx_resources - Allocate VSI queues Rx resources
2225 * @vsi: ptr to the VSI
2227 * If this function returns with an error, then it's possible one or
2228 * more of the rings is populated (while the rest are not). It is the
2229 * callers duty to clean those orphaned rings.
2231 * Return 0 on success, negative on failure
2233 static int i40e_vsi_setup_rx_resources(struct i40e_vsi
*vsi
)
2237 for (i
= 0; i
< vsi
->num_queue_pairs
&& !err
; i
++)
2238 err
= i40e_setup_rx_descriptors(vsi
->rx_rings
[i
]);
2243 * i40e_vsi_free_rx_resources - Free Rx Resources for VSI queues
2244 * @vsi: ptr to the VSI
2246 * Free all receive software resources
2248 static void i40e_vsi_free_rx_resources(struct i40e_vsi
*vsi
)
2255 for (i
= 0; i
< vsi
->num_queue_pairs
; i
++)
2256 if (vsi
->rx_rings
[i
] && vsi
->rx_rings
[i
]->desc
)
2257 i40e_free_rx_resources(vsi
->rx_rings
[i
]);
2261 * i40e_configure_tx_ring - Configure a transmit ring context and rest
2262 * @ring: The Tx ring to configure
2264 * Configure the Tx descriptor ring in the HMC context.
2266 static int i40e_configure_tx_ring(struct i40e_ring
*ring
)
2268 struct i40e_vsi
*vsi
= ring
->vsi
;
2269 u16 pf_q
= vsi
->base_queue
+ ring
->queue_index
;
2270 struct i40e_hw
*hw
= &vsi
->back
->hw
;
2271 struct i40e_hmc_obj_txq tx_ctx
;
2272 i40e_status err
= 0;
2275 /* some ATR related tx ring init */
2276 if (vsi
->back
->flags
& I40E_FLAG_FD_ATR_ENABLED
) {
2277 ring
->atr_sample_rate
= vsi
->back
->atr_sample_rate
;
2278 ring
->atr_count
= 0;
2280 ring
->atr_sample_rate
= 0;
2283 /* initialize XPS */
2284 if (ring
->q_vector
&& ring
->netdev
&&
2285 vsi
->tc_config
.numtc
<= 1 &&
2286 !test_and_set_bit(__I40E_TX_XPS_INIT_DONE
, &ring
->state
))
2287 netif_set_xps_queue(ring
->netdev
,
2288 &ring
->q_vector
->affinity_mask
,
2291 /* clear the context structure first */
2292 memset(&tx_ctx
, 0, sizeof(tx_ctx
));
2294 tx_ctx
.new_context
= 1;
2295 tx_ctx
.base
= (ring
->dma
/ 128);
2296 tx_ctx
.qlen
= ring
->count
;
2297 tx_ctx
.fd_ena
= !!(vsi
->back
->flags
& (I40E_FLAG_FD_SB_ENABLED
|
2298 I40E_FLAG_FD_ATR_ENABLED
));
2299 tx_ctx
.timesync_ena
= !!(vsi
->back
->flags
& I40E_FLAG_PTP
);
2300 /* FDIR VSI tx ring can still use RS bit and writebacks */
2301 if (vsi
->type
!= I40E_VSI_FDIR
)
2302 tx_ctx
.head_wb_ena
= 1;
2303 tx_ctx
.head_wb_addr
= ring
->dma
+
2304 (ring
->count
* sizeof(struct i40e_tx_desc
));
2306 /* As part of VSI creation/update, FW allocates certain
2307 * Tx arbitration queue sets for each TC enabled for
2308 * the VSI. The FW returns the handles to these queue
2309 * sets as part of the response buffer to Add VSI,
2310 * Update VSI, etc. AQ commands. It is expected that
2311 * these queue set handles be associated with the Tx
2312 * queues by the driver as part of the TX queue context
2313 * initialization. This has to be done regardless of
2314 * DCB as by default everything is mapped to TC0.
2316 tx_ctx
.rdylist
= le16_to_cpu(vsi
->info
.qs_handle
[ring
->dcb_tc
]);
2317 tx_ctx
.rdylist_act
= 0;
2319 /* clear the context in the HMC */
2320 err
= i40e_clear_lan_tx_queue_context(hw
, pf_q
);
2322 dev_info(&vsi
->back
->pdev
->dev
,
2323 "Failed to clear LAN Tx queue context on Tx ring %d (pf_q %d), error: %d\n",
2324 ring
->queue_index
, pf_q
, err
);
2328 /* set the context in the HMC */
2329 err
= i40e_set_lan_tx_queue_context(hw
, pf_q
, &tx_ctx
);
2331 dev_info(&vsi
->back
->pdev
->dev
,
2332 "Failed to set LAN Tx queue context on Tx ring %d (pf_q %d, error: %d\n",
2333 ring
->queue_index
, pf_q
, err
);
2337 /* Now associate this queue with this PCI function */
2338 if (vsi
->type
== I40E_VSI_VMDQ2
)
2339 qtx_ctl
= I40E_QTX_CTL_VM_QUEUE
;
2341 qtx_ctl
= I40E_QTX_CTL_PF_QUEUE
;
2342 qtx_ctl
|= ((hw
->pf_id
<< I40E_QTX_CTL_PF_INDX_SHIFT
) &
2343 I40E_QTX_CTL_PF_INDX_MASK
);
2344 wr32(hw
, I40E_QTX_CTL(pf_q
), qtx_ctl
);
2347 clear_bit(__I40E_HANG_CHECK_ARMED
, &ring
->state
);
2349 /* cache tail off for easier writes later */
2350 ring
->tail
= hw
->hw_addr
+ I40E_QTX_TAIL(pf_q
);
2356 * i40e_configure_rx_ring - Configure a receive ring context
2357 * @ring: The Rx ring to configure
2359 * Configure the Rx descriptor ring in the HMC context.
2361 static int i40e_configure_rx_ring(struct i40e_ring
*ring
)
2363 struct i40e_vsi
*vsi
= ring
->vsi
;
2364 u32 chain_len
= vsi
->back
->hw
.func_caps
.rx_buf_chain_len
;
2365 u16 pf_q
= vsi
->base_queue
+ ring
->queue_index
;
2366 struct i40e_hw
*hw
= &vsi
->back
->hw
;
2367 struct i40e_hmc_obj_rxq rx_ctx
;
2368 i40e_status err
= 0;
2372 /* clear the context structure first */
2373 memset(&rx_ctx
, 0, sizeof(rx_ctx
));
2375 ring
->rx_buf_len
= vsi
->rx_buf_len
;
2376 ring
->rx_hdr_len
= vsi
->rx_hdr_len
;
2378 rx_ctx
.dbuff
= ring
->rx_buf_len
>> I40E_RXQ_CTX_DBUFF_SHIFT
;
2379 rx_ctx
.hbuff
= ring
->rx_hdr_len
>> I40E_RXQ_CTX_HBUFF_SHIFT
;
2381 rx_ctx
.base
= (ring
->dma
/ 128);
2382 rx_ctx
.qlen
= ring
->count
;
2384 if (vsi
->back
->flags
& I40E_FLAG_16BYTE_RX_DESC_ENABLED
) {
2385 set_ring_16byte_desc_enabled(ring
);
2391 rx_ctx
.dtype
= vsi
->dtype
;
2393 set_ring_ps_enabled(ring
);
2394 rx_ctx
.hsplit_0
= I40E_RX_SPLIT_L2
|
2396 I40E_RX_SPLIT_TCP_UDP
|
2399 rx_ctx
.hsplit_0
= 0;
2402 rx_ctx
.rxmax
= min_t(u16
, vsi
->max_frame
,
2403 (chain_len
* ring
->rx_buf_len
));
2404 if (hw
->revision_id
== 0)
2405 rx_ctx
.lrxqthresh
= 0;
2407 rx_ctx
.lrxqthresh
= 2;
2408 rx_ctx
.crcstrip
= 1;
2411 /* set the prefena field to 1 because the manual says to */
2414 /* clear the context in the HMC */
2415 err
= i40e_clear_lan_rx_queue_context(hw
, pf_q
);
2417 dev_info(&vsi
->back
->pdev
->dev
,
2418 "Failed to clear LAN Rx queue context on Rx ring %d (pf_q %d), error: %d\n",
2419 ring
->queue_index
, pf_q
, err
);
2423 /* set the context in the HMC */
2424 err
= i40e_set_lan_rx_queue_context(hw
, pf_q
, &rx_ctx
);
2426 dev_info(&vsi
->back
->pdev
->dev
,
2427 "Failed to set LAN Rx queue context on Rx ring %d (pf_q %d), error: %d\n",
2428 ring
->queue_index
, pf_q
, err
);
2432 /* cache tail for quicker writes, and clear the reg before use */
2433 ring
->tail
= hw
->hw_addr
+ I40E_QRX_TAIL(pf_q
);
2434 writel(0, ring
->tail
);
2436 i40e_alloc_rx_buffers(ring
, I40E_DESC_UNUSED(ring
));
2442 * i40e_vsi_configure_tx - Configure the VSI for Tx
2443 * @vsi: VSI structure describing this set of rings and resources
2445 * Configure the Tx VSI for operation.
2447 static int i40e_vsi_configure_tx(struct i40e_vsi
*vsi
)
2452 for (i
= 0; (i
< vsi
->num_queue_pairs
) && !err
; i
++)
2453 err
= i40e_configure_tx_ring(vsi
->tx_rings
[i
]);
2459 * i40e_vsi_configure_rx - Configure the VSI for Rx
2460 * @vsi: the VSI being configured
2462 * Configure the Rx VSI for operation.
2464 static int i40e_vsi_configure_rx(struct i40e_vsi
*vsi
)
2469 if (vsi
->netdev
&& (vsi
->netdev
->mtu
> ETH_DATA_LEN
))
2470 vsi
->max_frame
= vsi
->netdev
->mtu
+ ETH_HLEN
2471 + ETH_FCS_LEN
+ VLAN_HLEN
;
2473 vsi
->max_frame
= I40E_RXBUFFER_2048
;
2475 /* figure out correct receive buffer length */
2476 switch (vsi
->back
->flags
& (I40E_FLAG_RX_1BUF_ENABLED
|
2477 I40E_FLAG_RX_PS_ENABLED
)) {
2478 case I40E_FLAG_RX_1BUF_ENABLED
:
2479 vsi
->rx_hdr_len
= 0;
2480 vsi
->rx_buf_len
= vsi
->max_frame
;
2481 vsi
->dtype
= I40E_RX_DTYPE_NO_SPLIT
;
2483 case I40E_FLAG_RX_PS_ENABLED
:
2484 vsi
->rx_hdr_len
= I40E_RX_HDR_SIZE
;
2485 vsi
->rx_buf_len
= I40E_RXBUFFER_2048
;
2486 vsi
->dtype
= I40E_RX_DTYPE_HEADER_SPLIT
;
2489 vsi
->rx_hdr_len
= I40E_RX_HDR_SIZE
;
2490 vsi
->rx_buf_len
= I40E_RXBUFFER_2048
;
2491 vsi
->dtype
= I40E_RX_DTYPE_SPLIT_ALWAYS
;
2495 /* round up for the chip's needs */
2496 vsi
->rx_hdr_len
= ALIGN(vsi
->rx_hdr_len
,
2497 (1 << I40E_RXQ_CTX_HBUFF_SHIFT
));
2498 vsi
->rx_buf_len
= ALIGN(vsi
->rx_buf_len
,
2499 (1 << I40E_RXQ_CTX_DBUFF_SHIFT
));
2501 /* set up individual rings */
2502 for (i
= 0; i
< vsi
->num_queue_pairs
&& !err
; i
++)
2503 err
= i40e_configure_rx_ring(vsi
->rx_rings
[i
]);
2509 * i40e_vsi_config_dcb_rings - Update rings to reflect DCB TC
2510 * @vsi: ptr to the VSI
2512 static void i40e_vsi_config_dcb_rings(struct i40e_vsi
*vsi
)
2514 struct i40e_ring
*tx_ring
, *rx_ring
;
2515 u16 qoffset
, qcount
;
2518 if (!(vsi
->back
->flags
& I40E_FLAG_DCB_ENABLED
))
2521 for (n
= 0; n
< I40E_MAX_TRAFFIC_CLASS
; n
++) {
2522 if (!(vsi
->tc_config
.enabled_tc
& (1 << n
)))
2525 qoffset
= vsi
->tc_config
.tc_info
[n
].qoffset
;
2526 qcount
= vsi
->tc_config
.tc_info
[n
].qcount
;
2527 for (i
= qoffset
; i
< (qoffset
+ qcount
); i
++) {
2528 rx_ring
= vsi
->rx_rings
[i
];
2529 tx_ring
= vsi
->tx_rings
[i
];
2530 rx_ring
->dcb_tc
= n
;
2531 tx_ring
->dcb_tc
= n
;
2537 * i40e_set_vsi_rx_mode - Call set_rx_mode on a VSI
2538 * @vsi: ptr to the VSI
2540 static void i40e_set_vsi_rx_mode(struct i40e_vsi
*vsi
)
2543 i40e_set_rx_mode(vsi
->netdev
);
2547 * i40e_fdir_filter_restore - Restore the Sideband Flow Director filters
2548 * @vsi: Pointer to the targeted VSI
2550 * This function replays the hlist on the hw where all the SB Flow Director
2551 * filters were saved.
2553 static void i40e_fdir_filter_restore(struct i40e_vsi
*vsi
)
2555 struct i40e_fdir_filter
*filter
;
2556 struct i40e_pf
*pf
= vsi
->back
;
2557 struct hlist_node
*node
;
2559 if (!(pf
->flags
& I40E_FLAG_FD_SB_ENABLED
))
2562 hlist_for_each_entry_safe(filter
, node
,
2563 &pf
->fdir_filter_list
, fdir_node
) {
2564 i40e_add_del_fdir(vsi
, filter
, true);
2569 * i40e_vsi_configure - Set up the VSI for action
2570 * @vsi: the VSI being configured
2572 static int i40e_vsi_configure(struct i40e_vsi
*vsi
)
2576 i40e_set_vsi_rx_mode(vsi
);
2577 i40e_restore_vlan(vsi
);
2578 i40e_vsi_config_dcb_rings(vsi
);
2579 err
= i40e_vsi_configure_tx(vsi
);
2581 err
= i40e_vsi_configure_rx(vsi
);
2587 * i40e_vsi_configure_msix - MSIX mode Interrupt Config in the HW
2588 * @vsi: the VSI being configured
2590 static void i40e_vsi_configure_msix(struct i40e_vsi
*vsi
)
2592 struct i40e_pf
*pf
= vsi
->back
;
2593 struct i40e_q_vector
*q_vector
;
2594 struct i40e_hw
*hw
= &pf
->hw
;
2600 /* The interrupt indexing is offset by 1 in the PFINT_ITRn
2601 * and PFINT_LNKLSTn registers, e.g.:
2602 * PFINT_ITRn[0..n-1] gets msix-1..msix-n (qpair interrupts)
2604 qp
= vsi
->base_queue
;
2605 vector
= vsi
->base_vector
;
2606 for (i
= 0; i
< vsi
->num_q_vectors
; i
++, vector
++) {
2607 q_vector
= vsi
->q_vectors
[i
];
2608 q_vector
->rx
.itr
= ITR_TO_REG(vsi
->rx_itr_setting
);
2609 q_vector
->rx
.latency_range
= I40E_LOW_LATENCY
;
2610 wr32(hw
, I40E_PFINT_ITRN(I40E_RX_ITR
, vector
- 1),
2612 q_vector
->tx
.itr
= ITR_TO_REG(vsi
->tx_itr_setting
);
2613 q_vector
->tx
.latency_range
= I40E_LOW_LATENCY
;
2614 wr32(hw
, I40E_PFINT_ITRN(I40E_TX_ITR
, vector
- 1),
2617 /* Linked list for the queuepairs assigned to this vector */
2618 wr32(hw
, I40E_PFINT_LNKLSTN(vector
- 1), qp
);
2619 for (q
= 0; q
< q_vector
->num_ringpairs
; q
++) {
2620 val
= I40E_QINT_RQCTL_CAUSE_ENA_MASK
|
2621 (I40E_RX_ITR
<< I40E_QINT_RQCTL_ITR_INDX_SHIFT
) |
2622 (vector
<< I40E_QINT_RQCTL_MSIX_INDX_SHIFT
) |
2623 (qp
<< I40E_QINT_RQCTL_NEXTQ_INDX_SHIFT
)|
2625 << I40E_QINT_RQCTL_NEXTQ_TYPE_SHIFT
);
2627 wr32(hw
, I40E_QINT_RQCTL(qp
), val
);
2629 val
= I40E_QINT_TQCTL_CAUSE_ENA_MASK
|
2630 (I40E_TX_ITR
<< I40E_QINT_TQCTL_ITR_INDX_SHIFT
) |
2631 (vector
<< I40E_QINT_TQCTL_MSIX_INDX_SHIFT
) |
2632 ((qp
+1) << I40E_QINT_TQCTL_NEXTQ_INDX_SHIFT
)|
2634 << I40E_QINT_TQCTL_NEXTQ_TYPE_SHIFT
);
2636 /* Terminate the linked list */
2637 if (q
== (q_vector
->num_ringpairs
- 1))
2638 val
|= (I40E_QUEUE_END_OF_LIST
2639 << I40E_QINT_TQCTL_NEXTQ_INDX_SHIFT
);
2641 wr32(hw
, I40E_QINT_TQCTL(qp
), val
);
2650 * i40e_enable_misc_int_causes - enable the non-queue interrupts
2651 * @hw: ptr to the hardware info
2653 static void i40e_enable_misc_int_causes(struct i40e_hw
*hw
)
2657 /* clear things first */
2658 wr32(hw
, I40E_PFINT_ICR0_ENA
, 0); /* disable all */
2659 rd32(hw
, I40E_PFINT_ICR0
); /* read to clear */
2661 val
= I40E_PFINT_ICR0_ENA_ECC_ERR_MASK
|
2662 I40E_PFINT_ICR0_ENA_MAL_DETECT_MASK
|
2663 I40E_PFINT_ICR0_ENA_GRST_MASK
|
2664 I40E_PFINT_ICR0_ENA_PCI_EXCEPTION_MASK
|
2665 I40E_PFINT_ICR0_ENA_GPIO_MASK
|
2666 I40E_PFINT_ICR0_ENA_TIMESYNC_MASK
|
2667 I40E_PFINT_ICR0_ENA_HMC_ERR_MASK
|
2668 I40E_PFINT_ICR0_ENA_VFLR_MASK
|
2669 I40E_PFINT_ICR0_ENA_ADMINQ_MASK
;
2671 wr32(hw
, I40E_PFINT_ICR0_ENA
, val
);
2673 /* SW_ITR_IDX = 0, but don't change INTENA */
2674 wr32(hw
, I40E_PFINT_DYN_CTL0
, I40E_PFINT_DYN_CTL0_SW_ITR_INDX_MASK
|
2675 I40E_PFINT_DYN_CTL0_INTENA_MSK_MASK
);
2677 /* OTHER_ITR_IDX = 0 */
2678 wr32(hw
, I40E_PFINT_STAT_CTL0
, 0);
2682 * i40e_configure_msi_and_legacy - Legacy mode interrupt config in the HW
2683 * @vsi: the VSI being configured
2685 static void i40e_configure_msi_and_legacy(struct i40e_vsi
*vsi
)
2687 struct i40e_q_vector
*q_vector
= vsi
->q_vectors
[0];
2688 struct i40e_pf
*pf
= vsi
->back
;
2689 struct i40e_hw
*hw
= &pf
->hw
;
2692 /* set the ITR configuration */
2693 q_vector
->rx
.itr
= ITR_TO_REG(vsi
->rx_itr_setting
);
2694 q_vector
->rx
.latency_range
= I40E_LOW_LATENCY
;
2695 wr32(hw
, I40E_PFINT_ITR0(I40E_RX_ITR
), q_vector
->rx
.itr
);
2696 q_vector
->tx
.itr
= ITR_TO_REG(vsi
->tx_itr_setting
);
2697 q_vector
->tx
.latency_range
= I40E_LOW_LATENCY
;
2698 wr32(hw
, I40E_PFINT_ITR0(I40E_TX_ITR
), q_vector
->tx
.itr
);
2700 i40e_enable_misc_int_causes(hw
);
2702 /* FIRSTQ_INDX = 0, FIRSTQ_TYPE = 0 (rx) */
2703 wr32(hw
, I40E_PFINT_LNKLST0
, 0);
2705 /* Associate the queue pair to the vector and enable the queue int */
2706 val
= I40E_QINT_RQCTL_CAUSE_ENA_MASK
|
2707 (I40E_RX_ITR
<< I40E_QINT_RQCTL_ITR_INDX_SHIFT
) |
2708 (I40E_QUEUE_TYPE_TX
<< I40E_QINT_TQCTL_NEXTQ_TYPE_SHIFT
);
2710 wr32(hw
, I40E_QINT_RQCTL(0), val
);
2712 val
= I40E_QINT_TQCTL_CAUSE_ENA_MASK
|
2713 (I40E_TX_ITR
<< I40E_QINT_TQCTL_ITR_INDX_SHIFT
) |
2714 (I40E_QUEUE_END_OF_LIST
<< I40E_QINT_TQCTL_NEXTQ_INDX_SHIFT
);
2716 wr32(hw
, I40E_QINT_TQCTL(0), val
);
2721 * i40e_irq_dynamic_disable_icr0 - Disable default interrupt generation for icr0
2722 * @pf: board private structure
2724 void i40e_irq_dynamic_disable_icr0(struct i40e_pf
*pf
)
2726 struct i40e_hw
*hw
= &pf
->hw
;
2728 wr32(hw
, I40E_PFINT_DYN_CTL0
,
2729 I40E_ITR_NONE
<< I40E_PFINT_DYN_CTLN_ITR_INDX_SHIFT
);
2734 * i40e_irq_dynamic_enable_icr0 - Enable default interrupt generation for icr0
2735 * @pf: board private structure
2737 void i40e_irq_dynamic_enable_icr0(struct i40e_pf
*pf
)
2739 struct i40e_hw
*hw
= &pf
->hw
;
2742 val
= I40E_PFINT_DYN_CTL0_INTENA_MASK
|
2743 I40E_PFINT_DYN_CTL0_CLEARPBA_MASK
|
2744 (I40E_ITR_NONE
<< I40E_PFINT_DYN_CTL0_ITR_INDX_SHIFT
);
2746 wr32(hw
, I40E_PFINT_DYN_CTL0
, val
);
2751 * i40e_irq_dynamic_enable - Enable default interrupt generation settings
2752 * @vsi: pointer to a vsi
2753 * @vector: enable a particular Hw Interrupt vector
2755 void i40e_irq_dynamic_enable(struct i40e_vsi
*vsi
, int vector
)
2757 struct i40e_pf
*pf
= vsi
->back
;
2758 struct i40e_hw
*hw
= &pf
->hw
;
2761 val
= I40E_PFINT_DYN_CTLN_INTENA_MASK
|
2762 I40E_PFINT_DYN_CTLN_CLEARPBA_MASK
|
2763 (I40E_ITR_NONE
<< I40E_PFINT_DYN_CTLN_ITR_INDX_SHIFT
);
2764 wr32(hw
, I40E_PFINT_DYN_CTLN(vector
- 1), val
);
2765 /* skip the flush */
2769 * i40e_irq_dynamic_disable - Disable default interrupt generation settings
2770 * @vsi: pointer to a vsi
2771 * @vector: enable a particular Hw Interrupt vector
2773 void i40e_irq_dynamic_disable(struct i40e_vsi
*vsi
, int vector
)
2775 struct i40e_pf
*pf
= vsi
->back
;
2776 struct i40e_hw
*hw
= &pf
->hw
;
2779 val
= I40E_ITR_NONE
<< I40E_PFINT_DYN_CTLN_ITR_INDX_SHIFT
;
2780 wr32(hw
, I40E_PFINT_DYN_CTLN(vector
- 1), val
);
2785 * i40e_msix_clean_rings - MSIX mode Interrupt Handler
2786 * @irq: interrupt number
2787 * @data: pointer to a q_vector
2789 static irqreturn_t
i40e_msix_clean_rings(int irq
, void *data
)
2791 struct i40e_q_vector
*q_vector
= data
;
2793 if (!q_vector
->tx
.ring
&& !q_vector
->rx
.ring
)
2796 napi_schedule(&q_vector
->napi
);
2802 * i40e_vsi_request_irq_msix - Initialize MSI-X interrupts
2803 * @vsi: the VSI being configured
2804 * @basename: name for the vector
2806 * Allocates MSI-X vectors and requests interrupts from the kernel.
2808 static int i40e_vsi_request_irq_msix(struct i40e_vsi
*vsi
, char *basename
)
2810 int q_vectors
= vsi
->num_q_vectors
;
2811 struct i40e_pf
*pf
= vsi
->back
;
2812 int base
= vsi
->base_vector
;
2817 for (vector
= 0; vector
< q_vectors
; vector
++) {
2818 struct i40e_q_vector
*q_vector
= vsi
->q_vectors
[vector
];
2820 if (q_vector
->tx
.ring
&& q_vector
->rx
.ring
) {
2821 snprintf(q_vector
->name
, sizeof(q_vector
->name
) - 1,
2822 "%s-%s-%d", basename
, "TxRx", rx_int_idx
++);
2824 } else if (q_vector
->rx
.ring
) {
2825 snprintf(q_vector
->name
, sizeof(q_vector
->name
) - 1,
2826 "%s-%s-%d", basename
, "rx", rx_int_idx
++);
2827 } else if (q_vector
->tx
.ring
) {
2828 snprintf(q_vector
->name
, sizeof(q_vector
->name
) - 1,
2829 "%s-%s-%d", basename
, "tx", tx_int_idx
++);
2831 /* skip this unused q_vector */
2834 err
= request_irq(pf
->msix_entries
[base
+ vector
].vector
,
2840 dev_info(&pf
->pdev
->dev
,
2841 "%s: request_irq failed, error: %d\n",
2843 goto free_queue_irqs
;
2845 /* assign the mask for this irq */
2846 irq_set_affinity_hint(pf
->msix_entries
[base
+ vector
].vector
,
2847 &q_vector
->affinity_mask
);
2850 vsi
->irqs_ready
= true;
2856 irq_set_affinity_hint(pf
->msix_entries
[base
+ vector
].vector
,
2858 free_irq(pf
->msix_entries
[base
+ vector
].vector
,
2859 &(vsi
->q_vectors
[vector
]));
2865 * i40e_vsi_disable_irq - Mask off queue interrupt generation on the VSI
2866 * @vsi: the VSI being un-configured
2868 static void i40e_vsi_disable_irq(struct i40e_vsi
*vsi
)
2870 struct i40e_pf
*pf
= vsi
->back
;
2871 struct i40e_hw
*hw
= &pf
->hw
;
2872 int base
= vsi
->base_vector
;
2875 for (i
= 0; i
< vsi
->num_queue_pairs
; i
++) {
2876 wr32(hw
, I40E_QINT_TQCTL(vsi
->tx_rings
[i
]->reg_idx
), 0);
2877 wr32(hw
, I40E_QINT_RQCTL(vsi
->rx_rings
[i
]->reg_idx
), 0);
2880 if (pf
->flags
& I40E_FLAG_MSIX_ENABLED
) {
2881 for (i
= vsi
->base_vector
;
2882 i
< (vsi
->num_q_vectors
+ vsi
->base_vector
); i
++)
2883 wr32(hw
, I40E_PFINT_DYN_CTLN(i
- 1), 0);
2886 for (i
= 0; i
< vsi
->num_q_vectors
; i
++)
2887 synchronize_irq(pf
->msix_entries
[i
+ base
].vector
);
2889 /* Legacy and MSI mode - this stops all interrupt handling */
2890 wr32(hw
, I40E_PFINT_ICR0_ENA
, 0);
2891 wr32(hw
, I40E_PFINT_DYN_CTL0
, 0);
2893 synchronize_irq(pf
->pdev
->irq
);
2898 * i40e_vsi_enable_irq - Enable IRQ for the given VSI
2899 * @vsi: the VSI being configured
2901 static int i40e_vsi_enable_irq(struct i40e_vsi
*vsi
)
2903 struct i40e_pf
*pf
= vsi
->back
;
2906 if (pf
->flags
& I40E_FLAG_MSIX_ENABLED
) {
2907 for (i
= vsi
->base_vector
;
2908 i
< (vsi
->num_q_vectors
+ vsi
->base_vector
); i
++)
2909 i40e_irq_dynamic_enable(vsi
, i
);
2911 i40e_irq_dynamic_enable_icr0(pf
);
2914 i40e_flush(&pf
->hw
);
2919 * i40e_stop_misc_vector - Stop the vector that handles non-queue events
2920 * @pf: board private structure
2922 static void i40e_stop_misc_vector(struct i40e_pf
*pf
)
2925 wr32(&pf
->hw
, I40E_PFINT_ICR0_ENA
, 0);
2926 i40e_flush(&pf
->hw
);
2930 * i40e_intr - MSI/Legacy and non-queue interrupt handler
2931 * @irq: interrupt number
2932 * @data: pointer to a q_vector
2934 * This is the handler used for all MSI/Legacy interrupts, and deals
2935 * with both queue and non-queue interrupts. This is also used in
2936 * MSIX mode to handle the non-queue interrupts.
2938 static irqreturn_t
i40e_intr(int irq
, void *data
)
2940 struct i40e_pf
*pf
= (struct i40e_pf
*)data
;
2941 struct i40e_hw
*hw
= &pf
->hw
;
2942 irqreturn_t ret
= IRQ_NONE
;
2943 u32 icr0
, icr0_remaining
;
2946 icr0
= rd32(hw
, I40E_PFINT_ICR0
);
2947 ena_mask
= rd32(hw
, I40E_PFINT_ICR0_ENA
);
2949 /* if sharing a legacy IRQ, we might get called w/o an intr pending */
2950 if ((icr0
& I40E_PFINT_ICR0_INTEVENT_MASK
) == 0)
2953 /* if interrupt but no bits showing, must be SWINT */
2954 if (((icr0
& ~I40E_PFINT_ICR0_INTEVENT_MASK
) == 0) ||
2955 (icr0
& I40E_PFINT_ICR0_SWINT_MASK
))
2958 /* only q0 is used in MSI/Legacy mode, and none are used in MSIX */
2959 if (icr0
& I40E_PFINT_ICR0_QUEUE_0_MASK
) {
2961 /* temporarily disable queue cause for NAPI processing */
2962 u32 qval
= rd32(hw
, I40E_QINT_RQCTL(0));
2963 qval
&= ~I40E_QINT_RQCTL_CAUSE_ENA_MASK
;
2964 wr32(hw
, I40E_QINT_RQCTL(0), qval
);
2966 qval
= rd32(hw
, I40E_QINT_TQCTL(0));
2967 qval
&= ~I40E_QINT_TQCTL_CAUSE_ENA_MASK
;
2968 wr32(hw
, I40E_QINT_TQCTL(0), qval
);
2970 if (!test_bit(__I40E_DOWN
, &pf
->state
))
2971 napi_schedule(&pf
->vsi
[pf
->lan_vsi
]->q_vectors
[0]->napi
);
2974 if (icr0
& I40E_PFINT_ICR0_ADMINQ_MASK
) {
2975 ena_mask
&= ~I40E_PFINT_ICR0_ENA_ADMINQ_MASK
;
2976 set_bit(__I40E_ADMINQ_EVENT_PENDING
, &pf
->state
);
2979 if (icr0
& I40E_PFINT_ICR0_MAL_DETECT_MASK
) {
2980 ena_mask
&= ~I40E_PFINT_ICR0_ENA_MAL_DETECT_MASK
;
2981 set_bit(__I40E_MDD_EVENT_PENDING
, &pf
->state
);
2984 if (icr0
& I40E_PFINT_ICR0_VFLR_MASK
) {
2985 ena_mask
&= ~I40E_PFINT_ICR0_ENA_VFLR_MASK
;
2986 set_bit(__I40E_VFLR_EVENT_PENDING
, &pf
->state
);
2989 if (icr0
& I40E_PFINT_ICR0_GRST_MASK
) {
2990 if (!test_bit(__I40E_RESET_RECOVERY_PENDING
, &pf
->state
))
2991 set_bit(__I40E_RESET_INTR_RECEIVED
, &pf
->state
);
2992 ena_mask
&= ~I40E_PFINT_ICR0_ENA_GRST_MASK
;
2993 val
= rd32(hw
, I40E_GLGEN_RSTAT
);
2994 val
= (val
& I40E_GLGEN_RSTAT_RESET_TYPE_MASK
)
2995 >> I40E_GLGEN_RSTAT_RESET_TYPE_SHIFT
;
2996 if (val
== I40E_RESET_CORER
) {
2998 } else if (val
== I40E_RESET_GLOBR
) {
3000 } else if (val
== I40E_RESET_EMPR
) {
3002 set_bit(__I40E_EMP_RESET_REQUESTED
, &pf
->state
);
3006 if (icr0
& I40E_PFINT_ICR0_HMC_ERR_MASK
) {
3007 icr0
&= ~I40E_PFINT_ICR0_HMC_ERR_MASK
;
3008 dev_info(&pf
->pdev
->dev
, "HMC error interrupt\n");
3011 if (icr0
& I40E_PFINT_ICR0_TIMESYNC_MASK
) {
3012 u32 prttsyn_stat
= rd32(hw
, I40E_PRTTSYN_STAT_0
);
3014 if (prttsyn_stat
& I40E_PRTTSYN_STAT_0_TXTIME_MASK
) {
3015 icr0
&= ~I40E_PFINT_ICR0_ENA_TIMESYNC_MASK
;
3016 i40e_ptp_tx_hwtstamp(pf
);
3020 /* If a critical error is pending we have no choice but to reset the
3022 * Report and mask out any remaining unexpected interrupts.
3024 icr0_remaining
= icr0
& ena_mask
;
3025 if (icr0_remaining
) {
3026 dev_info(&pf
->pdev
->dev
, "unhandled interrupt icr0=0x%08x\n",
3028 if ((icr0_remaining
& I40E_PFINT_ICR0_PE_CRITERR_MASK
) ||
3029 (icr0_remaining
& I40E_PFINT_ICR0_PCI_EXCEPTION_MASK
) ||
3030 (icr0_remaining
& I40E_PFINT_ICR0_ECC_ERR_MASK
)) {
3031 dev_info(&pf
->pdev
->dev
, "device will be reset\n");
3032 set_bit(__I40E_PF_RESET_REQUESTED
, &pf
->state
);
3033 i40e_service_event_schedule(pf
);
3035 ena_mask
&= ~icr0_remaining
;
3040 /* re-enable interrupt causes */
3041 wr32(hw
, I40E_PFINT_ICR0_ENA
, ena_mask
);
3042 if (!test_bit(__I40E_DOWN
, &pf
->state
)) {
3043 i40e_service_event_schedule(pf
);
3044 i40e_irq_dynamic_enable_icr0(pf
);
3051 * i40e_clean_fdir_tx_irq - Reclaim resources after transmit completes
3052 * @tx_ring: tx ring to clean
3053 * @budget: how many cleans we're allowed
3055 * Returns true if there's any budget left (e.g. the clean is finished)
3057 static bool i40e_clean_fdir_tx_irq(struct i40e_ring
*tx_ring
, int budget
)
3059 struct i40e_vsi
*vsi
= tx_ring
->vsi
;
3060 u16 i
= tx_ring
->next_to_clean
;
3061 struct i40e_tx_buffer
*tx_buf
;
3062 struct i40e_tx_desc
*tx_desc
;
3064 tx_buf
= &tx_ring
->tx_bi
[i
];
3065 tx_desc
= I40E_TX_DESC(tx_ring
, i
);
3066 i
-= tx_ring
->count
;
3069 struct i40e_tx_desc
*eop_desc
= tx_buf
->next_to_watch
;
3071 /* if next_to_watch is not set then there is no work pending */
3075 /* prevent any other reads prior to eop_desc */
3076 read_barrier_depends();
3078 /* if the descriptor isn't done, no work yet to do */
3079 if (!(eop_desc
->cmd_type_offset_bsz
&
3080 cpu_to_le64(I40E_TX_DESC_DTYPE_DESC_DONE
)))
3083 /* clear next_to_watch to prevent false hangs */
3084 tx_buf
->next_to_watch
= NULL
;
3086 tx_desc
->buffer_addr
= 0;
3087 tx_desc
->cmd_type_offset_bsz
= 0;
3088 /* move past filter desc */
3093 i
-= tx_ring
->count
;
3094 tx_buf
= tx_ring
->tx_bi
;
3095 tx_desc
= I40E_TX_DESC(tx_ring
, 0);
3097 /* unmap skb header data */
3098 dma_unmap_single(tx_ring
->dev
,
3099 dma_unmap_addr(tx_buf
, dma
),
3100 dma_unmap_len(tx_buf
, len
),
3102 if (tx_buf
->tx_flags
& I40E_TX_FLAGS_FD_SB
)
3103 kfree(tx_buf
->raw_buf
);
3105 tx_buf
->raw_buf
= NULL
;
3106 tx_buf
->tx_flags
= 0;
3107 tx_buf
->next_to_watch
= NULL
;
3108 dma_unmap_len_set(tx_buf
, len
, 0);
3109 tx_desc
->buffer_addr
= 0;
3110 tx_desc
->cmd_type_offset_bsz
= 0;
3112 /* move us past the eop_desc for start of next FD desc */
3117 i
-= tx_ring
->count
;
3118 tx_buf
= tx_ring
->tx_bi
;
3119 tx_desc
= I40E_TX_DESC(tx_ring
, 0);
3122 /* update budget accounting */
3124 } while (likely(budget
));
3126 i
+= tx_ring
->count
;
3127 tx_ring
->next_to_clean
= i
;
3129 if (vsi
->back
->flags
& I40E_FLAG_MSIX_ENABLED
) {
3130 i40e_irq_dynamic_enable(vsi
,
3131 tx_ring
->q_vector
->v_idx
+ vsi
->base_vector
);
3137 * i40e_fdir_clean_ring - Interrupt Handler for FDIR SB ring
3138 * @irq: interrupt number
3139 * @data: pointer to a q_vector
3141 static irqreturn_t
i40e_fdir_clean_ring(int irq
, void *data
)
3143 struct i40e_q_vector
*q_vector
= data
;
3144 struct i40e_vsi
*vsi
;
3146 if (!q_vector
->tx
.ring
)
3149 vsi
= q_vector
->tx
.ring
->vsi
;
3150 i40e_clean_fdir_tx_irq(q_vector
->tx
.ring
, vsi
->work_limit
);
3156 * i40e_map_vector_to_qp - Assigns the queue pair to the vector
3157 * @vsi: the VSI being configured
3158 * @v_idx: vector index
3159 * @qp_idx: queue pair index
3161 static void map_vector_to_qp(struct i40e_vsi
*vsi
, int v_idx
, int qp_idx
)
3163 struct i40e_q_vector
*q_vector
= vsi
->q_vectors
[v_idx
];
3164 struct i40e_ring
*tx_ring
= vsi
->tx_rings
[qp_idx
];
3165 struct i40e_ring
*rx_ring
= vsi
->rx_rings
[qp_idx
];
3167 tx_ring
->q_vector
= q_vector
;
3168 tx_ring
->next
= q_vector
->tx
.ring
;
3169 q_vector
->tx
.ring
= tx_ring
;
3170 q_vector
->tx
.count
++;
3172 rx_ring
->q_vector
= q_vector
;
3173 rx_ring
->next
= q_vector
->rx
.ring
;
3174 q_vector
->rx
.ring
= rx_ring
;
3175 q_vector
->rx
.count
++;
3179 * i40e_vsi_map_rings_to_vectors - Maps descriptor rings to vectors
3180 * @vsi: the VSI being configured
3182 * This function maps descriptor rings to the queue-specific vectors
3183 * we were allotted through the MSI-X enabling code. Ideally, we'd have
3184 * one vector per queue pair, but on a constrained vector budget, we
3185 * group the queue pairs as "efficiently" as possible.
3187 static void i40e_vsi_map_rings_to_vectors(struct i40e_vsi
*vsi
)
3189 int qp_remaining
= vsi
->num_queue_pairs
;
3190 int q_vectors
= vsi
->num_q_vectors
;
3195 /* If we don't have enough vectors for a 1-to-1 mapping, we'll have to
3196 * group them so there are multiple queues per vector.
3197 * It is also important to go through all the vectors available to be
3198 * sure that if we don't use all the vectors, that the remaining vectors
3199 * are cleared. This is especially important when decreasing the
3200 * number of queues in use.
3202 for (; v_start
< q_vectors
; v_start
++) {
3203 struct i40e_q_vector
*q_vector
= vsi
->q_vectors
[v_start
];
3205 num_ringpairs
= DIV_ROUND_UP(qp_remaining
, q_vectors
- v_start
);
3207 q_vector
->num_ringpairs
= num_ringpairs
;
3209 q_vector
->rx
.count
= 0;
3210 q_vector
->tx
.count
= 0;
3211 q_vector
->rx
.ring
= NULL
;
3212 q_vector
->tx
.ring
= NULL
;
3214 while (num_ringpairs
--) {
3215 map_vector_to_qp(vsi
, v_start
, qp_idx
);
3223 * i40e_vsi_request_irq - Request IRQ from the OS
3224 * @vsi: the VSI being configured
3225 * @basename: name for the vector
3227 static int i40e_vsi_request_irq(struct i40e_vsi
*vsi
, char *basename
)
3229 struct i40e_pf
*pf
= vsi
->back
;
3232 if (pf
->flags
& I40E_FLAG_MSIX_ENABLED
)
3233 err
= i40e_vsi_request_irq_msix(vsi
, basename
);
3234 else if (pf
->flags
& I40E_FLAG_MSI_ENABLED
)
3235 err
= request_irq(pf
->pdev
->irq
, i40e_intr
, 0,
3236 pf
->misc_int_name
, pf
);
3238 err
= request_irq(pf
->pdev
->irq
, i40e_intr
, IRQF_SHARED
,
3239 pf
->misc_int_name
, pf
);
3242 dev_info(&pf
->pdev
->dev
, "request_irq failed, Error %d\n", err
);
3247 #ifdef CONFIG_NET_POLL_CONTROLLER
3249 * i40e_netpoll - A Polling 'interrupt'handler
3250 * @netdev: network interface device structure
3252 * This is used by netconsole to send skbs without having to re-enable
3253 * interrupts. It's not called while the normal interrupt routine is executing.
3255 static void i40e_netpoll(struct net_device
*netdev
)
3257 struct i40e_netdev_priv
*np
= netdev_priv(netdev
);
3258 struct i40e_vsi
*vsi
= np
->vsi
;
3259 struct i40e_pf
*pf
= vsi
->back
;
3262 /* if interface is down do nothing */
3263 if (test_bit(__I40E_DOWN
, &vsi
->state
))
3266 pf
->flags
|= I40E_FLAG_IN_NETPOLL
;
3267 if (pf
->flags
& I40E_FLAG_MSIX_ENABLED
) {
3268 for (i
= 0; i
< vsi
->num_q_vectors
; i
++)
3269 i40e_msix_clean_rings(0, vsi
->q_vectors
[i
]);
3271 i40e_intr(pf
->pdev
->irq
, netdev
);
3273 pf
->flags
&= ~I40E_FLAG_IN_NETPOLL
;
3278 * i40e_pf_txq_wait - Wait for a PF's Tx queue to be enabled or disabled
3279 * @pf: the PF being configured
3280 * @pf_q: the PF queue
3281 * @enable: enable or disable state of the queue
3283 * This routine will wait for the given Tx queue of the PF to reach the
3284 * enabled or disabled state.
3285 * Returns -ETIMEDOUT in case of failing to reach the requested state after
3286 * multiple retries; else will return 0 in case of success.
3288 static int i40e_pf_txq_wait(struct i40e_pf
*pf
, int pf_q
, bool enable
)
3293 for (i
= 0; i
< I40E_QUEUE_WAIT_RETRY_LIMIT
; i
++) {
3294 tx_reg
= rd32(&pf
->hw
, I40E_QTX_ENA(pf_q
));
3295 if (enable
== !!(tx_reg
& I40E_QTX_ENA_QENA_STAT_MASK
))
3300 if (i
>= I40E_QUEUE_WAIT_RETRY_LIMIT
)
3307 * i40e_vsi_control_tx - Start or stop a VSI's rings
3308 * @vsi: the VSI being configured
3309 * @enable: start or stop the rings
3311 static int i40e_vsi_control_tx(struct i40e_vsi
*vsi
, bool enable
)
3313 struct i40e_pf
*pf
= vsi
->back
;
3314 struct i40e_hw
*hw
= &pf
->hw
;
3315 int i
, j
, pf_q
, ret
= 0;
3318 pf_q
= vsi
->base_queue
;
3319 for (i
= 0; i
< vsi
->num_queue_pairs
; i
++, pf_q
++) {
3321 /* warn the TX unit of coming changes */
3322 i40e_pre_tx_queue_cfg(&pf
->hw
, pf_q
, enable
);
3326 for (j
= 0; j
< 50; j
++) {
3327 tx_reg
= rd32(hw
, I40E_QTX_ENA(pf_q
));
3328 if (((tx_reg
>> I40E_QTX_ENA_QENA_REQ_SHIFT
) & 1) ==
3329 ((tx_reg
>> I40E_QTX_ENA_QENA_STAT_SHIFT
) & 1))
3331 usleep_range(1000, 2000);
3333 /* Skip if the queue is already in the requested state */
3334 if (enable
== !!(tx_reg
& I40E_QTX_ENA_QENA_STAT_MASK
))
3337 /* turn on/off the queue */
3339 wr32(hw
, I40E_QTX_HEAD(pf_q
), 0);
3340 tx_reg
|= I40E_QTX_ENA_QENA_REQ_MASK
;
3342 tx_reg
&= ~I40E_QTX_ENA_QENA_REQ_MASK
;
3345 wr32(hw
, I40E_QTX_ENA(pf_q
), tx_reg
);
3347 /* wait for the change to finish */
3348 ret
= i40e_pf_txq_wait(pf
, pf_q
, enable
);
3350 dev_info(&pf
->pdev
->dev
,
3351 "%s: VSI seid %d Tx ring %d %sable timeout\n",
3352 __func__
, vsi
->seid
, pf_q
,
3353 (enable
? "en" : "dis"));
3358 if (hw
->revision_id
== 0)
3364 * i40e_pf_rxq_wait - Wait for a PF's Rx queue to be enabled or disabled
3365 * @pf: the PF being configured
3366 * @pf_q: the PF queue
3367 * @enable: enable or disable state of the queue
3369 * This routine will wait for the given Rx queue of the PF to reach the
3370 * enabled or disabled state.
3371 * Returns -ETIMEDOUT in case of failing to reach the requested state after
3372 * multiple retries; else will return 0 in case of success.
3374 static int i40e_pf_rxq_wait(struct i40e_pf
*pf
, int pf_q
, bool enable
)
3379 for (i
= 0; i
< I40E_QUEUE_WAIT_RETRY_LIMIT
; i
++) {
3380 rx_reg
= rd32(&pf
->hw
, I40E_QRX_ENA(pf_q
));
3381 if (enable
== !!(rx_reg
& I40E_QRX_ENA_QENA_STAT_MASK
))
3386 if (i
>= I40E_QUEUE_WAIT_RETRY_LIMIT
)
3393 * i40e_vsi_control_rx - Start or stop a VSI's rings
3394 * @vsi: the VSI being configured
3395 * @enable: start or stop the rings
3397 static int i40e_vsi_control_rx(struct i40e_vsi
*vsi
, bool enable
)
3399 struct i40e_pf
*pf
= vsi
->back
;
3400 struct i40e_hw
*hw
= &pf
->hw
;
3401 int i
, j
, pf_q
, ret
= 0;
3404 pf_q
= vsi
->base_queue
;
3405 for (i
= 0; i
< vsi
->num_queue_pairs
; i
++, pf_q
++) {
3406 for (j
= 0; j
< 50; j
++) {
3407 rx_reg
= rd32(hw
, I40E_QRX_ENA(pf_q
));
3408 if (((rx_reg
>> I40E_QRX_ENA_QENA_REQ_SHIFT
) & 1) ==
3409 ((rx_reg
>> I40E_QRX_ENA_QENA_STAT_SHIFT
) & 1))
3411 usleep_range(1000, 2000);
3414 /* Skip if the queue is already in the requested state */
3415 if (enable
== !!(rx_reg
& I40E_QRX_ENA_QENA_STAT_MASK
))
3418 /* turn on/off the queue */
3420 rx_reg
|= I40E_QRX_ENA_QENA_REQ_MASK
;
3422 rx_reg
&= ~I40E_QRX_ENA_QENA_REQ_MASK
;
3423 wr32(hw
, I40E_QRX_ENA(pf_q
), rx_reg
);
3425 /* wait for the change to finish */
3426 ret
= i40e_pf_rxq_wait(pf
, pf_q
, enable
);
3428 dev_info(&pf
->pdev
->dev
,
3429 "%s: VSI seid %d Rx ring %d %sable timeout\n",
3430 __func__
, vsi
->seid
, pf_q
,
3431 (enable
? "en" : "dis"));
3440 * i40e_vsi_control_rings - Start or stop a VSI's rings
3441 * @vsi: the VSI being configured
3442 * @enable: start or stop the rings
3444 int i40e_vsi_control_rings(struct i40e_vsi
*vsi
, bool request
)
3448 /* do rx first for enable and last for disable */
3450 ret
= i40e_vsi_control_rx(vsi
, request
);
3453 ret
= i40e_vsi_control_tx(vsi
, request
);
3455 /* Ignore return value, we need to shutdown whatever we can */
3456 i40e_vsi_control_tx(vsi
, request
);
3457 i40e_vsi_control_rx(vsi
, request
);
3464 * i40e_vsi_free_irq - Free the irq association with the OS
3465 * @vsi: the VSI being configured
3467 static void i40e_vsi_free_irq(struct i40e_vsi
*vsi
)
3469 struct i40e_pf
*pf
= vsi
->back
;
3470 struct i40e_hw
*hw
= &pf
->hw
;
3471 int base
= vsi
->base_vector
;
3475 if (pf
->flags
& I40E_FLAG_MSIX_ENABLED
) {
3476 if (!vsi
->q_vectors
)
3479 if (!vsi
->irqs_ready
)
3482 vsi
->irqs_ready
= false;
3483 for (i
= 0; i
< vsi
->num_q_vectors
; i
++) {
3484 u16 vector
= i
+ base
;
3486 /* free only the irqs that were actually requested */
3487 if (!vsi
->q_vectors
[i
] ||
3488 !vsi
->q_vectors
[i
]->num_ringpairs
)
3491 /* clear the affinity_mask in the IRQ descriptor */
3492 irq_set_affinity_hint(pf
->msix_entries
[vector
].vector
,
3494 free_irq(pf
->msix_entries
[vector
].vector
,
3497 /* Tear down the interrupt queue link list
3499 * We know that they come in pairs and always
3500 * the Rx first, then the Tx. To clear the
3501 * link list, stick the EOL value into the
3502 * next_q field of the registers.
3504 val
= rd32(hw
, I40E_PFINT_LNKLSTN(vector
- 1));
3505 qp
= (val
& I40E_PFINT_LNKLSTN_FIRSTQ_INDX_MASK
)
3506 >> I40E_PFINT_LNKLSTN_FIRSTQ_INDX_SHIFT
;
3507 val
|= I40E_QUEUE_END_OF_LIST
3508 << I40E_PFINT_LNKLSTN_FIRSTQ_INDX_SHIFT
;
3509 wr32(hw
, I40E_PFINT_LNKLSTN(vector
- 1), val
);
3511 while (qp
!= I40E_QUEUE_END_OF_LIST
) {
3514 val
= rd32(hw
, I40E_QINT_RQCTL(qp
));
3516 val
&= ~(I40E_QINT_RQCTL_MSIX_INDX_MASK
|
3517 I40E_QINT_RQCTL_MSIX0_INDX_MASK
|
3518 I40E_QINT_RQCTL_CAUSE_ENA_MASK
|
3519 I40E_QINT_RQCTL_INTEVENT_MASK
);
3521 val
|= (I40E_QINT_RQCTL_ITR_INDX_MASK
|
3522 I40E_QINT_RQCTL_NEXTQ_INDX_MASK
);
3524 wr32(hw
, I40E_QINT_RQCTL(qp
), val
);
3526 val
= rd32(hw
, I40E_QINT_TQCTL(qp
));
3528 next
= (val
& I40E_QINT_TQCTL_NEXTQ_INDX_MASK
)
3529 >> I40E_QINT_TQCTL_NEXTQ_INDX_SHIFT
;
3531 val
&= ~(I40E_QINT_TQCTL_MSIX_INDX_MASK
|
3532 I40E_QINT_TQCTL_MSIX0_INDX_MASK
|
3533 I40E_QINT_TQCTL_CAUSE_ENA_MASK
|
3534 I40E_QINT_TQCTL_INTEVENT_MASK
);
3536 val
|= (I40E_QINT_TQCTL_ITR_INDX_MASK
|
3537 I40E_QINT_TQCTL_NEXTQ_INDX_MASK
);
3539 wr32(hw
, I40E_QINT_TQCTL(qp
), val
);
3544 free_irq(pf
->pdev
->irq
, pf
);
3546 val
= rd32(hw
, I40E_PFINT_LNKLST0
);
3547 qp
= (val
& I40E_PFINT_LNKLSTN_FIRSTQ_INDX_MASK
)
3548 >> I40E_PFINT_LNKLSTN_FIRSTQ_INDX_SHIFT
;
3549 val
|= I40E_QUEUE_END_OF_LIST
3550 << I40E_PFINT_LNKLST0_FIRSTQ_INDX_SHIFT
;
3551 wr32(hw
, I40E_PFINT_LNKLST0
, val
);
3553 val
= rd32(hw
, I40E_QINT_RQCTL(qp
));
3554 val
&= ~(I40E_QINT_RQCTL_MSIX_INDX_MASK
|
3555 I40E_QINT_RQCTL_MSIX0_INDX_MASK
|
3556 I40E_QINT_RQCTL_CAUSE_ENA_MASK
|
3557 I40E_QINT_RQCTL_INTEVENT_MASK
);
3559 val
|= (I40E_QINT_RQCTL_ITR_INDX_MASK
|
3560 I40E_QINT_RQCTL_NEXTQ_INDX_MASK
);
3562 wr32(hw
, I40E_QINT_RQCTL(qp
), val
);
3564 val
= rd32(hw
, I40E_QINT_TQCTL(qp
));
3566 val
&= ~(I40E_QINT_TQCTL_MSIX_INDX_MASK
|
3567 I40E_QINT_TQCTL_MSIX0_INDX_MASK
|
3568 I40E_QINT_TQCTL_CAUSE_ENA_MASK
|
3569 I40E_QINT_TQCTL_INTEVENT_MASK
);
3571 val
|= (I40E_QINT_TQCTL_ITR_INDX_MASK
|
3572 I40E_QINT_TQCTL_NEXTQ_INDX_MASK
);
3574 wr32(hw
, I40E_QINT_TQCTL(qp
), val
);
3579 * i40e_free_q_vector - Free memory allocated for specific interrupt vector
3580 * @vsi: the VSI being configured
3581 * @v_idx: Index of vector to be freed
3583 * This function frees the memory allocated to the q_vector. In addition if
3584 * NAPI is enabled it will delete any references to the NAPI struct prior
3585 * to freeing the q_vector.
3587 static void i40e_free_q_vector(struct i40e_vsi
*vsi
, int v_idx
)
3589 struct i40e_q_vector
*q_vector
= vsi
->q_vectors
[v_idx
];
3590 struct i40e_ring
*ring
;
3595 /* disassociate q_vector from rings */
3596 i40e_for_each_ring(ring
, q_vector
->tx
)
3597 ring
->q_vector
= NULL
;
3599 i40e_for_each_ring(ring
, q_vector
->rx
)
3600 ring
->q_vector
= NULL
;
3602 /* only VSI w/ an associated netdev is set up w/ NAPI */
3604 netif_napi_del(&q_vector
->napi
);
3606 vsi
->q_vectors
[v_idx
] = NULL
;
3608 kfree_rcu(q_vector
, rcu
);
3612 * i40e_vsi_free_q_vectors - Free memory allocated for interrupt vectors
3613 * @vsi: the VSI being un-configured
3615 * This frees the memory allocated to the q_vectors and
3616 * deletes references to the NAPI struct.
3618 static void i40e_vsi_free_q_vectors(struct i40e_vsi
*vsi
)
3622 for (v_idx
= 0; v_idx
< vsi
->num_q_vectors
; v_idx
++)
3623 i40e_free_q_vector(vsi
, v_idx
);
3627 * i40e_reset_interrupt_capability - Disable interrupt setup in OS
3628 * @pf: board private structure
3630 static void i40e_reset_interrupt_capability(struct i40e_pf
*pf
)
3632 /* If we're in Legacy mode, the interrupt was cleaned in vsi_close */
3633 if (pf
->flags
& I40E_FLAG_MSIX_ENABLED
) {
3634 pci_disable_msix(pf
->pdev
);
3635 kfree(pf
->msix_entries
);
3636 pf
->msix_entries
= NULL
;
3637 } else if (pf
->flags
& I40E_FLAG_MSI_ENABLED
) {
3638 pci_disable_msi(pf
->pdev
);
3640 pf
->flags
&= ~(I40E_FLAG_MSIX_ENABLED
| I40E_FLAG_MSI_ENABLED
);
3644 * i40e_clear_interrupt_scheme - Clear the current interrupt scheme settings
3645 * @pf: board private structure
3647 * We go through and clear interrupt specific resources and reset the structure
3648 * to pre-load conditions
3650 static void i40e_clear_interrupt_scheme(struct i40e_pf
*pf
)
3654 i40e_put_lump(pf
->irq_pile
, 0, I40E_PILE_VALID_BIT
-1);
3655 for (i
= 0; i
< pf
->num_alloc_vsi
; i
++)
3657 i40e_vsi_free_q_vectors(pf
->vsi
[i
]);
3658 i40e_reset_interrupt_capability(pf
);
3662 * i40e_napi_enable_all - Enable NAPI for all q_vectors in the VSI
3663 * @vsi: the VSI being configured
3665 static void i40e_napi_enable_all(struct i40e_vsi
*vsi
)
3672 for (q_idx
= 0; q_idx
< vsi
->num_q_vectors
; q_idx
++)
3673 napi_enable(&vsi
->q_vectors
[q_idx
]->napi
);
3677 * i40e_napi_disable_all - Disable NAPI for all q_vectors in the VSI
3678 * @vsi: the VSI being configured
3680 static void i40e_napi_disable_all(struct i40e_vsi
*vsi
)
3687 for (q_idx
= 0; q_idx
< vsi
->num_q_vectors
; q_idx
++)
3688 napi_disable(&vsi
->q_vectors
[q_idx
]->napi
);
3692 * i40e_vsi_close - Shut down a VSI
3693 * @vsi: the vsi to be quelled
3695 static void i40e_vsi_close(struct i40e_vsi
*vsi
)
3697 if (!test_and_set_bit(__I40E_DOWN
, &vsi
->state
))
3699 i40e_vsi_free_irq(vsi
);
3700 i40e_vsi_free_tx_resources(vsi
);
3701 i40e_vsi_free_rx_resources(vsi
);
3705 * i40e_quiesce_vsi - Pause a given VSI
3706 * @vsi: the VSI being paused
3708 static void i40e_quiesce_vsi(struct i40e_vsi
*vsi
)
3710 if (test_bit(__I40E_DOWN
, &vsi
->state
))
3713 set_bit(__I40E_NEEDS_RESTART
, &vsi
->state
);
3714 if (vsi
->netdev
&& netif_running(vsi
->netdev
)) {
3715 vsi
->netdev
->netdev_ops
->ndo_stop(vsi
->netdev
);
3717 i40e_vsi_close(vsi
);
3722 * i40e_unquiesce_vsi - Resume a given VSI
3723 * @vsi: the VSI being resumed
3725 static void i40e_unquiesce_vsi(struct i40e_vsi
*vsi
)
3727 if (!test_bit(__I40E_NEEDS_RESTART
, &vsi
->state
))
3730 clear_bit(__I40E_NEEDS_RESTART
, &vsi
->state
);
3731 if (vsi
->netdev
&& netif_running(vsi
->netdev
))
3732 vsi
->netdev
->netdev_ops
->ndo_open(vsi
->netdev
);
3734 i40e_vsi_open(vsi
); /* this clears the DOWN bit */
3738 * i40e_pf_quiesce_all_vsi - Pause all VSIs on a PF
3741 static void i40e_pf_quiesce_all_vsi(struct i40e_pf
*pf
)
3745 for (v
= 0; v
< pf
->num_alloc_vsi
; v
++) {
3747 i40e_quiesce_vsi(pf
->vsi
[v
]);
3752 * i40e_pf_unquiesce_all_vsi - Resume all VSIs on a PF
3755 static void i40e_pf_unquiesce_all_vsi(struct i40e_pf
*pf
)
3759 for (v
= 0; v
< pf
->num_alloc_vsi
; v
++) {
3761 i40e_unquiesce_vsi(pf
->vsi
[v
]);
3766 * i40e_dcb_get_num_tc - Get the number of TCs from DCBx config
3767 * @dcbcfg: the corresponding DCBx configuration structure
3769 * Return the number of TCs from given DCBx configuration
3771 static u8
i40e_dcb_get_num_tc(struct i40e_dcbx_config
*dcbcfg
)
3776 /* Scan the ETS Config Priority Table to find
3777 * traffic class enabled for a given priority
3778 * and use the traffic class index to get the
3779 * number of traffic classes enabled
3781 for (i
= 0; i
< I40E_MAX_USER_PRIORITY
; i
++) {
3782 if (dcbcfg
->etscfg
.prioritytable
[i
] > num_tc
)
3783 num_tc
= dcbcfg
->etscfg
.prioritytable
[i
];
3786 /* Traffic class index starts from zero so
3787 * increment to return the actual count
3793 * i40e_dcb_get_enabled_tc - Get enabled traffic classes
3794 * @dcbcfg: the corresponding DCBx configuration structure
3796 * Query the current DCB configuration and return the number of
3797 * traffic classes enabled from the given DCBX config
3799 static u8
i40e_dcb_get_enabled_tc(struct i40e_dcbx_config
*dcbcfg
)
3801 u8 num_tc
= i40e_dcb_get_num_tc(dcbcfg
);
3805 for (i
= 0; i
< num_tc
; i
++)
3806 enabled_tc
|= 1 << i
;
3812 * i40e_pf_get_num_tc - Get enabled traffic classes for PF
3813 * @pf: PF being queried
3815 * Return number of traffic classes enabled for the given PF
3817 static u8
i40e_pf_get_num_tc(struct i40e_pf
*pf
)
3819 struct i40e_hw
*hw
= &pf
->hw
;
3822 struct i40e_dcbx_config
*dcbcfg
= &hw
->local_dcbx_config
;
3824 /* If DCB is not enabled then always in single TC */
3825 if (!(pf
->flags
& I40E_FLAG_DCB_ENABLED
))
3828 /* MFP mode return count of enabled TCs for this PF */
3829 if (pf
->flags
& I40E_FLAG_MFP_ENABLED
) {
3830 enabled_tc
= pf
->hw
.func_caps
.enabled_tcmap
;
3831 for (i
= 0; i
< I40E_MAX_TRAFFIC_CLASS
; i
++) {
3832 if (enabled_tc
& (1 << i
))
3838 /* SFP mode will be enabled for all TCs on port */
3839 return i40e_dcb_get_num_tc(dcbcfg
);
3843 * i40e_pf_get_default_tc - Get bitmap for first enabled TC
3844 * @pf: PF being queried
3846 * Return a bitmap for first enabled traffic class for this PF.
3848 static u8
i40e_pf_get_default_tc(struct i40e_pf
*pf
)
3850 u8 enabled_tc
= pf
->hw
.func_caps
.enabled_tcmap
;
3854 return 0x1; /* TC0 */
3856 /* Find the first enabled TC */
3857 for (i
= 0; i
< I40E_MAX_TRAFFIC_CLASS
; i
++) {
3858 if (enabled_tc
& (1 << i
))
3866 * i40e_pf_get_pf_tc_map - Get bitmap for enabled traffic classes
3867 * @pf: PF being queried
3869 * Return a bitmap for enabled traffic classes for this PF.
3871 static u8
i40e_pf_get_tc_map(struct i40e_pf
*pf
)
3873 /* If DCB is not enabled for this PF then just return default TC */
3874 if (!(pf
->flags
& I40E_FLAG_DCB_ENABLED
))
3875 return i40e_pf_get_default_tc(pf
);
3877 /* MFP mode will have enabled TCs set by FW */
3878 if (pf
->flags
& I40E_FLAG_MFP_ENABLED
)
3879 return pf
->hw
.func_caps
.enabled_tcmap
;
3881 /* SFP mode we want PF to be enabled for all TCs */
3882 return i40e_dcb_get_enabled_tc(&pf
->hw
.local_dcbx_config
);
3886 * i40e_vsi_get_bw_info - Query VSI BW Information
3887 * @vsi: the VSI being queried
3889 * Returns 0 on success, negative value on failure
3891 static int i40e_vsi_get_bw_info(struct i40e_vsi
*vsi
)
3893 struct i40e_aqc_query_vsi_ets_sla_config_resp bw_ets_config
= {0};
3894 struct i40e_aqc_query_vsi_bw_config_resp bw_config
= {0};
3895 struct i40e_pf
*pf
= vsi
->back
;
3896 struct i40e_hw
*hw
= &pf
->hw
;
3901 /* Get the VSI level BW configuration */
3902 aq_ret
= i40e_aq_query_vsi_bw_config(hw
, vsi
->seid
, &bw_config
, NULL
);
3904 dev_info(&pf
->pdev
->dev
,
3905 "couldn't get pf vsi bw config, err %d, aq_err %d\n",
3906 aq_ret
, pf
->hw
.aq
.asq_last_status
);
3910 /* Get the VSI level BW configuration per TC */
3911 aq_ret
= i40e_aq_query_vsi_ets_sla_config(hw
, vsi
->seid
, &bw_ets_config
,
3914 dev_info(&pf
->pdev
->dev
,
3915 "couldn't get pf vsi ets bw config, err %d, aq_err %d\n",
3916 aq_ret
, pf
->hw
.aq
.asq_last_status
);
3920 if (bw_config
.tc_valid_bits
!= bw_ets_config
.tc_valid_bits
) {
3921 dev_info(&pf
->pdev
->dev
,
3922 "Enabled TCs mismatch from querying VSI BW info 0x%08x 0x%08x\n",
3923 bw_config
.tc_valid_bits
,
3924 bw_ets_config
.tc_valid_bits
);
3925 /* Still continuing */
3928 vsi
->bw_limit
= le16_to_cpu(bw_config
.port_bw_limit
);
3929 vsi
->bw_max_quanta
= bw_config
.max_bw
;
3930 tc_bw_max
= le16_to_cpu(bw_ets_config
.tc_bw_max
[0]) |
3931 (le16_to_cpu(bw_ets_config
.tc_bw_max
[1]) << 16);
3932 for (i
= 0; i
< I40E_MAX_TRAFFIC_CLASS
; i
++) {
3933 vsi
->bw_ets_share_credits
[i
] = bw_ets_config
.share_credits
[i
];
3934 vsi
->bw_ets_limit_credits
[i
] =
3935 le16_to_cpu(bw_ets_config
.credits
[i
]);
3936 /* 3 bits out of 4 for each TC */
3937 vsi
->bw_ets_max_quanta
[i
] = (u8
)((tc_bw_max
>> (i
*4)) & 0x7);
3944 * i40e_vsi_configure_bw_alloc - Configure VSI BW allocation per TC
3945 * @vsi: the VSI being configured
3946 * @enabled_tc: TC bitmap
3947 * @bw_credits: BW shared credits per TC
3949 * Returns 0 on success, negative value on failure
3951 static int i40e_vsi_configure_bw_alloc(struct i40e_vsi
*vsi
, u8 enabled_tc
,
3954 struct i40e_aqc_configure_vsi_tc_bw_data bw_data
;
3958 bw_data
.tc_valid_bits
= enabled_tc
;
3959 for (i
= 0; i
< I40E_MAX_TRAFFIC_CLASS
; i
++)
3960 bw_data
.tc_bw_credits
[i
] = bw_share
[i
];
3962 aq_ret
= i40e_aq_config_vsi_tc_bw(&vsi
->back
->hw
, vsi
->seid
, &bw_data
,
3965 dev_info(&vsi
->back
->pdev
->dev
,
3966 "AQ command Config VSI BW allocation per TC failed = %d\n",
3967 vsi
->back
->hw
.aq
.asq_last_status
);
3971 for (i
= 0; i
< I40E_MAX_TRAFFIC_CLASS
; i
++)
3972 vsi
->info
.qs_handle
[i
] = bw_data
.qs_handles
[i
];
3978 * i40e_vsi_config_netdev_tc - Setup the netdev TC configuration
3979 * @vsi: the VSI being configured
3980 * @enabled_tc: TC map to be enabled
3983 static void i40e_vsi_config_netdev_tc(struct i40e_vsi
*vsi
, u8 enabled_tc
)
3985 struct net_device
*netdev
= vsi
->netdev
;
3986 struct i40e_pf
*pf
= vsi
->back
;
3987 struct i40e_hw
*hw
= &pf
->hw
;
3990 struct i40e_dcbx_config
*dcbcfg
= &hw
->local_dcbx_config
;
3996 netdev_reset_tc(netdev
);
4000 /* Set up actual enabled TCs on the VSI */
4001 if (netdev_set_num_tc(netdev
, vsi
->tc_config
.numtc
))
4004 /* set per TC queues for the VSI */
4005 for (i
= 0; i
< I40E_MAX_TRAFFIC_CLASS
; i
++) {
4006 /* Only set TC queues for enabled tcs
4008 * e.g. For a VSI that has TC0 and TC3 enabled the
4009 * enabled_tc bitmap would be 0x00001001; the driver
4010 * will set the numtc for netdev as 2 that will be
4011 * referenced by the netdev layer as TC 0 and 1.
4013 if (vsi
->tc_config
.enabled_tc
& (1 << i
))
4014 netdev_set_tc_queue(netdev
,
4015 vsi
->tc_config
.tc_info
[i
].netdev_tc
,
4016 vsi
->tc_config
.tc_info
[i
].qcount
,
4017 vsi
->tc_config
.tc_info
[i
].qoffset
);
4020 /* Assign UP2TC map for the VSI */
4021 for (i
= 0; i
< I40E_MAX_USER_PRIORITY
; i
++) {
4022 /* Get the actual TC# for the UP */
4023 u8 ets_tc
= dcbcfg
->etscfg
.prioritytable
[i
];
4024 /* Get the mapped netdev TC# for the UP */
4025 netdev_tc
= vsi
->tc_config
.tc_info
[ets_tc
].netdev_tc
;
4026 netdev_set_prio_tc_map(netdev
, i
, netdev_tc
);
4031 * i40e_vsi_update_queue_map - Update our copy of VSi info with new queue map
4032 * @vsi: the VSI being configured
4033 * @ctxt: the ctxt buffer returned from AQ VSI update param command
4035 static void i40e_vsi_update_queue_map(struct i40e_vsi
*vsi
,
4036 struct i40e_vsi_context
*ctxt
)
4038 /* copy just the sections touched not the entire info
4039 * since not all sections are valid as returned by
4042 vsi
->info
.mapping_flags
= ctxt
->info
.mapping_flags
;
4043 memcpy(&vsi
->info
.queue_mapping
,
4044 &ctxt
->info
.queue_mapping
, sizeof(vsi
->info
.queue_mapping
));
4045 memcpy(&vsi
->info
.tc_mapping
, ctxt
->info
.tc_mapping
,
4046 sizeof(vsi
->info
.tc_mapping
));
4050 * i40e_vsi_config_tc - Configure VSI Tx Scheduler for given TC map
4051 * @vsi: VSI to be configured
4052 * @enabled_tc: TC bitmap
4054 * This configures a particular VSI for TCs that are mapped to the
4055 * given TC bitmap. It uses default bandwidth share for TCs across
4056 * VSIs to configure TC for a particular VSI.
4059 * It is expected that the VSI queues have been quisced before calling
4062 static int i40e_vsi_config_tc(struct i40e_vsi
*vsi
, u8 enabled_tc
)
4064 u8 bw_share
[I40E_MAX_TRAFFIC_CLASS
] = {0};
4065 struct i40e_vsi_context ctxt
;
4069 /* Check if enabled_tc is same as existing or new TCs */
4070 if (vsi
->tc_config
.enabled_tc
== enabled_tc
)
4073 /* Enable ETS TCs with equal BW Share for now across all VSIs */
4074 for (i
= 0; i
< I40E_MAX_TRAFFIC_CLASS
; i
++) {
4075 if (enabled_tc
& (1 << i
))
4079 ret
= i40e_vsi_configure_bw_alloc(vsi
, enabled_tc
, bw_share
);
4081 dev_info(&vsi
->back
->pdev
->dev
,
4082 "Failed configuring TC map %d for VSI %d\n",
4083 enabled_tc
, vsi
->seid
);
4087 /* Update Queue Pairs Mapping for currently enabled UPs */
4088 ctxt
.seid
= vsi
->seid
;
4089 ctxt
.pf_num
= vsi
->back
->hw
.pf_id
;
4091 ctxt
.uplink_seid
= vsi
->uplink_seid
;
4092 memcpy(&ctxt
.info
, &vsi
->info
, sizeof(vsi
->info
));
4093 i40e_vsi_setup_queue_map(vsi
, &ctxt
, enabled_tc
, false);
4095 /* Update the VSI after updating the VSI queue-mapping information */
4096 ret
= i40e_aq_update_vsi_params(&vsi
->back
->hw
, &ctxt
, NULL
);
4098 dev_info(&vsi
->back
->pdev
->dev
,
4099 "update vsi failed, aq_err=%d\n",
4100 vsi
->back
->hw
.aq
.asq_last_status
);
4103 /* update the local VSI info with updated queue map */
4104 i40e_vsi_update_queue_map(vsi
, &ctxt
);
4105 vsi
->info
.valid_sections
= 0;
4107 /* Update current VSI BW information */
4108 ret
= i40e_vsi_get_bw_info(vsi
);
4110 dev_info(&vsi
->back
->pdev
->dev
,
4111 "Failed updating vsi bw info, aq_err=%d\n",
4112 vsi
->back
->hw
.aq
.asq_last_status
);
4116 /* Update the netdev TC setup */
4117 i40e_vsi_config_netdev_tc(vsi
, enabled_tc
);
4123 * i40e_veb_config_tc - Configure TCs for given VEB
4125 * @enabled_tc: TC bitmap
4127 * Configures given TC bitmap for VEB (switching) element
4129 int i40e_veb_config_tc(struct i40e_veb
*veb
, u8 enabled_tc
)
4131 struct i40e_aqc_configure_switching_comp_bw_config_data bw_data
= {0};
4132 struct i40e_pf
*pf
= veb
->pf
;
4136 /* No TCs or already enabled TCs just return */
4137 if (!enabled_tc
|| veb
->enabled_tc
== enabled_tc
)
4140 bw_data
.tc_valid_bits
= enabled_tc
;
4141 /* bw_data.absolute_credits is not set (relative) */
4143 /* Enable ETS TCs with equal BW Share for now */
4144 for (i
= 0; i
< I40E_MAX_TRAFFIC_CLASS
; i
++) {
4145 if (enabled_tc
& (1 << i
))
4146 bw_data
.tc_bw_share_credits
[i
] = 1;
4149 ret
= i40e_aq_config_switch_comp_bw_config(&pf
->hw
, veb
->seid
,
4152 dev_info(&pf
->pdev
->dev
,
4153 "veb bw config failed, aq_err=%d\n",
4154 pf
->hw
.aq
.asq_last_status
);
4158 /* Update the BW information */
4159 ret
= i40e_veb_get_bw_info(veb
);
4161 dev_info(&pf
->pdev
->dev
,
4162 "Failed getting veb bw config, aq_err=%d\n",
4163 pf
->hw
.aq
.asq_last_status
);
4170 #ifdef CONFIG_I40E_DCB
4172 * i40e_dcb_reconfigure - Reconfigure all VEBs and VSIs
4175 * Reconfigure VEB/VSIs on a given PF; it is assumed that
4176 * the caller would've quiesce all the VSIs before calling
4179 static void i40e_dcb_reconfigure(struct i40e_pf
*pf
)
4185 /* Enable the TCs available on PF to all VEBs */
4186 tc_map
= i40e_pf_get_tc_map(pf
);
4187 for (v
= 0; v
< I40E_MAX_VEB
; v
++) {
4190 ret
= i40e_veb_config_tc(pf
->veb
[v
], tc_map
);
4192 dev_info(&pf
->pdev
->dev
,
4193 "Failed configuring TC for VEB seid=%d\n",
4195 /* Will try to configure as many components */
4199 /* Update each VSI */
4200 for (v
= 0; v
< pf
->num_alloc_vsi
; v
++) {
4204 /* - Enable all TCs for the LAN VSI
4205 * - For all others keep them at TC0 for now
4207 if (v
== pf
->lan_vsi
)
4208 tc_map
= i40e_pf_get_tc_map(pf
);
4210 tc_map
= i40e_pf_get_default_tc(pf
);
4212 ret
= i40e_vsi_config_tc(pf
->vsi
[v
], tc_map
);
4214 dev_info(&pf
->pdev
->dev
,
4215 "Failed configuring TC for VSI seid=%d\n",
4217 /* Will try to configure as many components */
4219 /* Re-configure VSI vectors based on updated TC map */
4220 i40e_vsi_map_rings_to_vectors(pf
->vsi
[v
]);
4221 if (pf
->vsi
[v
]->netdev
)
4222 i40e_dcbnl_set_all(pf
->vsi
[v
]);
4228 * i40e_init_pf_dcb - Initialize DCB configuration
4229 * @pf: PF being configured
4231 * Query the current DCB configuration and cache it
4232 * in the hardware structure
4234 static int i40e_init_pf_dcb(struct i40e_pf
*pf
)
4236 struct i40e_hw
*hw
= &pf
->hw
;
4239 if (pf
->hw
.func_caps
.npar_enable
)
4242 /* Get the initial DCB configuration */
4243 err
= i40e_init_dcb(hw
);
4245 /* Device/Function is not DCBX capable */
4246 if ((!hw
->func_caps
.dcb
) ||
4247 (hw
->dcbx_status
== I40E_DCBX_STATUS_DISABLED
)) {
4248 dev_info(&pf
->pdev
->dev
,
4249 "DCBX offload is not supported or is disabled for this PF.\n");
4251 if (pf
->flags
& I40E_FLAG_MFP_ENABLED
)
4255 /* When status is not DISABLED then DCBX in FW */
4256 pf
->dcbx_cap
= DCB_CAP_DCBX_LLD_MANAGED
|
4257 DCB_CAP_DCBX_VER_IEEE
;
4259 pf
->flags
|= I40E_FLAG_DCB_CAPABLE
;
4260 /* Enable DCB tagging only when more than one TC */
4261 if (i40e_dcb_get_num_tc(&hw
->local_dcbx_config
) > 1)
4262 pf
->flags
|= I40E_FLAG_DCB_ENABLED
;
4265 dev_info(&pf
->pdev
->dev
, "AQ Querying DCB configuration failed: %d\n",
4266 pf
->hw
.aq
.asq_last_status
);
4272 #endif /* CONFIG_I40E_DCB */
4273 #define SPEED_SIZE 14
4276 * i40e_print_link_message - print link up or down
4277 * @vsi: the VSI for which link needs a message
4279 static void i40e_print_link_message(struct i40e_vsi
*vsi
, bool isup
)
4281 char speed
[SPEED_SIZE
] = "Unknown";
4282 char fc
[FC_SIZE
] = "RX/TX";
4285 netdev_info(vsi
->netdev
, "NIC Link is Down\n");
4289 switch (vsi
->back
->hw
.phy
.link_info
.link_speed
) {
4290 case I40E_LINK_SPEED_40GB
:
4291 strncpy(speed
, "40 Gbps", SPEED_SIZE
);
4293 case I40E_LINK_SPEED_10GB
:
4294 strncpy(speed
, "10 Gbps", SPEED_SIZE
);
4296 case I40E_LINK_SPEED_1GB
:
4297 strncpy(speed
, "1000 Mbps", SPEED_SIZE
);
4303 switch (vsi
->back
->hw
.fc
.current_mode
) {
4305 strncpy(fc
, "RX/TX", FC_SIZE
);
4307 case I40E_FC_TX_PAUSE
:
4308 strncpy(fc
, "TX", FC_SIZE
);
4310 case I40E_FC_RX_PAUSE
:
4311 strncpy(fc
, "RX", FC_SIZE
);
4314 strncpy(fc
, "None", FC_SIZE
);
4318 netdev_info(vsi
->netdev
, "NIC Link is Up %s Full Duplex, Flow Control: %s\n",
4323 * i40e_up_complete - Finish the last steps of bringing up a connection
4324 * @vsi: the VSI being configured
4326 static int i40e_up_complete(struct i40e_vsi
*vsi
)
4328 struct i40e_pf
*pf
= vsi
->back
;
4329 u8 set_fc_aq_fail
= 0;
4332 /* force flow control off */
4333 i40e_set_fc(&pf
->hw
, &set_fc_aq_fail
, true);
4335 if (pf
->flags
& I40E_FLAG_MSIX_ENABLED
)
4336 i40e_vsi_configure_msix(vsi
);
4338 i40e_configure_msi_and_legacy(vsi
);
4341 err
= i40e_vsi_control_rings(vsi
, true);
4345 clear_bit(__I40E_DOWN
, &vsi
->state
);
4346 i40e_napi_enable_all(vsi
);
4347 i40e_vsi_enable_irq(vsi
);
4349 if ((pf
->hw
.phy
.link_info
.link_info
& I40E_AQ_LINK_UP
) &&
4351 i40e_print_link_message(vsi
, true);
4352 netif_tx_start_all_queues(vsi
->netdev
);
4353 netif_carrier_on(vsi
->netdev
);
4354 } else if (vsi
->netdev
) {
4355 i40e_print_link_message(vsi
, false);
4358 /* replay FDIR SB filters */
4359 if (vsi
->type
== I40E_VSI_FDIR
)
4360 i40e_fdir_filter_restore(vsi
);
4361 i40e_service_event_schedule(pf
);
4367 * i40e_vsi_reinit_locked - Reset the VSI
4368 * @vsi: the VSI being configured
4370 * Rebuild the ring structs after some configuration
4371 * has changed, e.g. MTU size.
4373 static void i40e_vsi_reinit_locked(struct i40e_vsi
*vsi
)
4375 struct i40e_pf
*pf
= vsi
->back
;
4377 WARN_ON(in_interrupt());
4378 while (test_and_set_bit(__I40E_CONFIG_BUSY
, &pf
->state
))
4379 usleep_range(1000, 2000);
4382 /* Give a VF some time to respond to the reset. The
4383 * two second wait is based upon the watchdog cycle in
4386 if (vsi
->type
== I40E_VSI_SRIOV
)
4389 clear_bit(__I40E_CONFIG_BUSY
, &pf
->state
);
4393 * i40e_up - Bring the connection back up after being down
4394 * @vsi: the VSI being configured
4396 int i40e_up(struct i40e_vsi
*vsi
)
4400 err
= i40e_vsi_configure(vsi
);
4402 err
= i40e_up_complete(vsi
);
4408 * i40e_down - Shutdown the connection processing
4409 * @vsi: the VSI being stopped
4411 void i40e_down(struct i40e_vsi
*vsi
)
4415 /* It is assumed that the caller of this function
4416 * sets the vsi->state __I40E_DOWN bit.
4419 netif_carrier_off(vsi
->netdev
);
4420 netif_tx_disable(vsi
->netdev
);
4422 i40e_vsi_disable_irq(vsi
);
4423 i40e_vsi_control_rings(vsi
, false);
4424 i40e_napi_disable_all(vsi
);
4426 for (i
= 0; i
< vsi
->num_queue_pairs
; i
++) {
4427 i40e_clean_tx_ring(vsi
->tx_rings
[i
]);
4428 i40e_clean_rx_ring(vsi
->rx_rings
[i
]);
4433 * i40e_setup_tc - configure multiple traffic classes
4434 * @netdev: net device to configure
4435 * @tc: number of traffic classes to enable
4437 static int i40e_setup_tc(struct net_device
*netdev
, u8 tc
)
4439 struct i40e_netdev_priv
*np
= netdev_priv(netdev
);
4440 struct i40e_vsi
*vsi
= np
->vsi
;
4441 struct i40e_pf
*pf
= vsi
->back
;
4446 /* Check if DCB enabled to continue */
4447 if (!(pf
->flags
& I40E_FLAG_DCB_ENABLED
)) {
4448 netdev_info(netdev
, "DCB is not enabled for adapter\n");
4452 /* Check if MFP enabled */
4453 if (pf
->flags
& I40E_FLAG_MFP_ENABLED
) {
4454 netdev_info(netdev
, "Configuring TC not supported in MFP mode\n");
4458 /* Check whether tc count is within enabled limit */
4459 if (tc
> i40e_pf_get_num_tc(pf
)) {
4460 netdev_info(netdev
, "TC count greater than enabled on link for adapter\n");
4464 /* Generate TC map for number of tc requested */
4465 for (i
= 0; i
< tc
; i
++)
4466 enabled_tc
|= (1 << i
);
4468 /* Requesting same TC configuration as already enabled */
4469 if (enabled_tc
== vsi
->tc_config
.enabled_tc
)
4472 /* Quiesce VSI queues */
4473 i40e_quiesce_vsi(vsi
);
4475 /* Configure VSI for enabled TCs */
4476 ret
= i40e_vsi_config_tc(vsi
, enabled_tc
);
4478 netdev_info(netdev
, "Failed configuring TC for VSI seid=%d\n",
4484 i40e_unquiesce_vsi(vsi
);
4491 * i40e_open - Called when a network interface is made active
4492 * @netdev: network interface device structure
4494 * The open entry point is called when a network interface is made
4495 * active by the system (IFF_UP). At this point all resources needed
4496 * for transmit and receive operations are allocated, the interrupt
4497 * handler is registered with the OS, the netdev watchdog subtask is
4498 * enabled, and the stack is notified that the interface is ready.
4500 * Returns 0 on success, negative value on failure
4502 static int i40e_open(struct net_device
*netdev
)
4504 struct i40e_netdev_priv
*np
= netdev_priv(netdev
);
4505 struct i40e_vsi
*vsi
= np
->vsi
;
4506 struct i40e_pf
*pf
= vsi
->back
;
4509 /* disallow open during test or if eeprom is broken */
4510 if (test_bit(__I40E_TESTING
, &pf
->state
) ||
4511 test_bit(__I40E_BAD_EEPROM
, &pf
->state
))
4514 netif_carrier_off(netdev
);
4516 err
= i40e_vsi_open(vsi
);
4520 /* configure global TSO hardware offload settings */
4521 wr32(&pf
->hw
, I40E_GLLAN_TSOMSK_F
, be32_to_cpu(TCP_FLAG_PSH
|
4522 TCP_FLAG_FIN
) >> 16);
4523 wr32(&pf
->hw
, I40E_GLLAN_TSOMSK_M
, be32_to_cpu(TCP_FLAG_PSH
|
4525 TCP_FLAG_CWR
) >> 16);
4526 wr32(&pf
->hw
, I40E_GLLAN_TSOMSK_L
, be32_to_cpu(TCP_FLAG_CWR
) >> 16);
4528 #ifdef CONFIG_I40E_VXLAN
4529 vxlan_get_rx_port(netdev
);
4537 * @vsi: the VSI to open
4539 * Finish initialization of the VSI.
4541 * Returns 0 on success, negative value on failure
4543 int i40e_vsi_open(struct i40e_vsi
*vsi
)
4545 struct i40e_pf
*pf
= vsi
->back
;
4546 char int_name
[IFNAMSIZ
];
4549 /* allocate descriptors */
4550 err
= i40e_vsi_setup_tx_resources(vsi
);
4553 err
= i40e_vsi_setup_rx_resources(vsi
);
4557 err
= i40e_vsi_configure(vsi
);
4562 snprintf(int_name
, sizeof(int_name
) - 1, "%s-%s",
4563 dev_driver_string(&pf
->pdev
->dev
), vsi
->netdev
->name
);
4564 err
= i40e_vsi_request_irq(vsi
, int_name
);
4568 /* Notify the stack of the actual queue counts. */
4569 err
= netif_set_real_num_tx_queues(vsi
->netdev
,
4570 vsi
->num_queue_pairs
);
4572 goto err_set_queues
;
4574 err
= netif_set_real_num_rx_queues(vsi
->netdev
,
4575 vsi
->num_queue_pairs
);
4577 goto err_set_queues
;
4579 } else if (vsi
->type
== I40E_VSI_FDIR
) {
4580 snprintf(int_name
, sizeof(int_name
) - 1, "%s-fdir",
4581 dev_driver_string(&pf
->pdev
->dev
));
4582 err
= i40e_vsi_request_irq(vsi
, int_name
);
4588 err
= i40e_up_complete(vsi
);
4590 goto err_up_complete
;
4597 i40e_vsi_free_irq(vsi
);
4599 i40e_vsi_free_rx_resources(vsi
);
4601 i40e_vsi_free_tx_resources(vsi
);
4602 if (vsi
== pf
->vsi
[pf
->lan_vsi
])
4603 i40e_do_reset(pf
, (1 << __I40E_PF_RESET_REQUESTED
));
4609 * i40e_fdir_filter_exit - Cleans up the Flow Director accounting
4610 * @pf: Pointer to pf
4612 * This function destroys the hlist where all the Flow Director
4613 * filters were saved.
4615 static void i40e_fdir_filter_exit(struct i40e_pf
*pf
)
4617 struct i40e_fdir_filter
*filter
;
4618 struct hlist_node
*node2
;
4620 hlist_for_each_entry_safe(filter
, node2
,
4621 &pf
->fdir_filter_list
, fdir_node
) {
4622 hlist_del(&filter
->fdir_node
);
4625 pf
->fdir_pf_active_filters
= 0;
4629 * i40e_close - Disables a network interface
4630 * @netdev: network interface device structure
4632 * The close entry point is called when an interface is de-activated
4633 * by the OS. The hardware is still under the driver's control, but
4634 * this netdev interface is disabled.
4636 * Returns 0, this is not allowed to fail
4638 static int i40e_close(struct net_device
*netdev
)
4640 struct i40e_netdev_priv
*np
= netdev_priv(netdev
);
4641 struct i40e_vsi
*vsi
= np
->vsi
;
4643 i40e_vsi_close(vsi
);
4649 * i40e_do_reset - Start a PF or Core Reset sequence
4650 * @pf: board private structure
4651 * @reset_flags: which reset is requested
4653 * The essential difference in resets is that the PF Reset
4654 * doesn't clear the packet buffers, doesn't reset the PE
4655 * firmware, and doesn't bother the other PFs on the chip.
4657 void i40e_do_reset(struct i40e_pf
*pf
, u32 reset_flags
)
4661 WARN_ON(in_interrupt());
4663 if (i40e_check_asq_alive(&pf
->hw
))
4664 i40e_vc_notify_reset(pf
);
4666 /* do the biggest reset indicated */
4667 if (reset_flags
& (1 << __I40E_GLOBAL_RESET_REQUESTED
)) {
4669 /* Request a Global Reset
4671 * This will start the chip's countdown to the actual full
4672 * chip reset event, and a warning interrupt to be sent
4673 * to all PFs, including the requestor. Our handler
4674 * for the warning interrupt will deal with the shutdown
4675 * and recovery of the switch setup.
4677 dev_dbg(&pf
->pdev
->dev
, "GlobalR requested\n");
4678 val
= rd32(&pf
->hw
, I40E_GLGEN_RTRIG
);
4679 val
|= I40E_GLGEN_RTRIG_GLOBR_MASK
;
4680 wr32(&pf
->hw
, I40E_GLGEN_RTRIG
, val
);
4682 } else if (reset_flags
& (1 << __I40E_CORE_RESET_REQUESTED
)) {
4684 /* Request a Core Reset
4686 * Same as Global Reset, except does *not* include the MAC/PHY
4688 dev_dbg(&pf
->pdev
->dev
, "CoreR requested\n");
4689 val
= rd32(&pf
->hw
, I40E_GLGEN_RTRIG
);
4690 val
|= I40E_GLGEN_RTRIG_CORER_MASK
;
4691 wr32(&pf
->hw
, I40E_GLGEN_RTRIG
, val
);
4692 i40e_flush(&pf
->hw
);
4694 } else if (reset_flags
& (1 << __I40E_EMP_RESET_REQUESTED
)) {
4696 /* Request a Firmware Reset
4698 * Same as Global reset, plus restarting the
4699 * embedded firmware engine.
4701 /* enable EMP Reset */
4702 val
= rd32(&pf
->hw
, I40E_GLGEN_RSTENA_EMP
);
4703 val
|= I40E_GLGEN_RSTENA_EMP_EMP_RST_ENA_MASK
;
4704 wr32(&pf
->hw
, I40E_GLGEN_RSTENA_EMP
, val
);
4706 /* force the reset */
4707 val
= rd32(&pf
->hw
, I40E_GLGEN_RTRIG
);
4708 val
|= I40E_GLGEN_RTRIG_EMPFWR_MASK
;
4709 wr32(&pf
->hw
, I40E_GLGEN_RTRIG
, val
);
4710 i40e_flush(&pf
->hw
);
4712 } else if (reset_flags
& (1 << __I40E_PF_RESET_REQUESTED
)) {
4714 /* Request a PF Reset
4716 * Resets only the PF-specific registers
4718 * This goes directly to the tear-down and rebuild of
4719 * the switch, since we need to do all the recovery as
4720 * for the Core Reset.
4722 dev_dbg(&pf
->pdev
->dev
, "PFR requested\n");
4723 i40e_handle_reset_warning(pf
);
4725 } else if (reset_flags
& (1 << __I40E_REINIT_REQUESTED
)) {
4728 /* Find the VSI(s) that requested a re-init */
4729 dev_info(&pf
->pdev
->dev
,
4730 "VSI reinit requested\n");
4731 for (v
= 0; v
< pf
->num_alloc_vsi
; v
++) {
4732 struct i40e_vsi
*vsi
= pf
->vsi
[v
];
4734 test_bit(__I40E_REINIT_REQUESTED
, &vsi
->state
)) {
4735 i40e_vsi_reinit_locked(pf
->vsi
[v
]);
4736 clear_bit(__I40E_REINIT_REQUESTED
, &vsi
->state
);
4740 /* no further action needed, so return now */
4742 } else if (reset_flags
& (1 << __I40E_DOWN_REQUESTED
)) {
4745 /* Find the VSI(s) that needs to be brought down */
4746 dev_info(&pf
->pdev
->dev
, "VSI down requested\n");
4747 for (v
= 0; v
< pf
->num_alloc_vsi
; v
++) {
4748 struct i40e_vsi
*vsi
= pf
->vsi
[v
];
4750 test_bit(__I40E_DOWN_REQUESTED
, &vsi
->state
)) {
4751 set_bit(__I40E_DOWN
, &vsi
->state
);
4753 clear_bit(__I40E_DOWN_REQUESTED
, &vsi
->state
);
4757 /* no further action needed, so return now */
4760 dev_info(&pf
->pdev
->dev
,
4761 "bad reset request 0x%08x\n", reset_flags
);
4766 #ifdef CONFIG_I40E_DCB
4768 * i40e_dcb_need_reconfig - Check if DCB needs reconfig
4769 * @pf: board private structure
4770 * @old_cfg: current DCB config
4771 * @new_cfg: new DCB config
4773 bool i40e_dcb_need_reconfig(struct i40e_pf
*pf
,
4774 struct i40e_dcbx_config
*old_cfg
,
4775 struct i40e_dcbx_config
*new_cfg
)
4777 bool need_reconfig
= false;
4779 /* Check if ETS configuration has changed */
4780 if (memcmp(&new_cfg
->etscfg
,
4782 sizeof(new_cfg
->etscfg
))) {
4783 /* If Priority Table has changed reconfig is needed */
4784 if (memcmp(&new_cfg
->etscfg
.prioritytable
,
4785 &old_cfg
->etscfg
.prioritytable
,
4786 sizeof(new_cfg
->etscfg
.prioritytable
))) {
4787 need_reconfig
= true;
4788 dev_dbg(&pf
->pdev
->dev
, "ETS UP2TC changed.\n");
4791 if (memcmp(&new_cfg
->etscfg
.tcbwtable
,
4792 &old_cfg
->etscfg
.tcbwtable
,
4793 sizeof(new_cfg
->etscfg
.tcbwtable
)))
4794 dev_dbg(&pf
->pdev
->dev
, "ETS TC BW Table changed.\n");
4796 if (memcmp(&new_cfg
->etscfg
.tsatable
,
4797 &old_cfg
->etscfg
.tsatable
,
4798 sizeof(new_cfg
->etscfg
.tsatable
)))
4799 dev_dbg(&pf
->pdev
->dev
, "ETS TSA Table changed.\n");
4802 /* Check if PFC configuration has changed */
4803 if (memcmp(&new_cfg
->pfc
,
4805 sizeof(new_cfg
->pfc
))) {
4806 need_reconfig
= true;
4807 dev_dbg(&pf
->pdev
->dev
, "PFC config change detected.\n");
4810 /* Check if APP Table has changed */
4811 if (memcmp(&new_cfg
->app
,
4813 sizeof(new_cfg
->app
))) {
4814 need_reconfig
= true;
4815 dev_dbg(&pf
->pdev
->dev
, "APP Table change detected.\n");
4818 return need_reconfig
;
4822 * i40e_handle_lldp_event - Handle LLDP Change MIB event
4823 * @pf: board private structure
4824 * @e: event info posted on ARQ
4826 static int i40e_handle_lldp_event(struct i40e_pf
*pf
,
4827 struct i40e_arq_event_info
*e
)
4829 struct i40e_aqc_lldp_get_mib
*mib
=
4830 (struct i40e_aqc_lldp_get_mib
*)&e
->desc
.params
.raw
;
4831 struct i40e_hw
*hw
= &pf
->hw
;
4832 struct i40e_dcbx_config
*dcbx_cfg
= &hw
->local_dcbx_config
;
4833 struct i40e_dcbx_config tmp_dcbx_cfg
;
4834 bool need_reconfig
= false;
4838 /* Not DCB capable or capability disabled */
4839 if (!(pf
->flags
& I40E_FLAG_DCB_CAPABLE
))
4842 /* Ignore if event is not for Nearest Bridge */
4843 type
= ((mib
->type
>> I40E_AQ_LLDP_BRIDGE_TYPE_SHIFT
)
4844 & I40E_AQ_LLDP_BRIDGE_TYPE_MASK
);
4845 if (type
!= I40E_AQ_LLDP_BRIDGE_TYPE_NEAREST_BRIDGE
)
4848 /* Check MIB Type and return if event for Remote MIB update */
4849 type
= mib
->type
& I40E_AQ_LLDP_MIB_TYPE_MASK
;
4850 if (type
== I40E_AQ_LLDP_MIB_REMOTE
) {
4851 /* Update the remote cached instance and return */
4852 ret
= i40e_aq_get_dcb_config(hw
, I40E_AQ_LLDP_MIB_REMOTE
,
4853 I40E_AQ_LLDP_BRIDGE_TYPE_NEAREST_BRIDGE
,
4854 &hw
->remote_dcbx_config
);
4858 /* Convert/store the DCBX data from LLDPDU temporarily */
4859 memset(&tmp_dcbx_cfg
, 0, sizeof(tmp_dcbx_cfg
));
4860 ret
= i40e_lldp_to_dcb_config(e
->msg_buf
, &tmp_dcbx_cfg
);
4862 /* Error in LLDPDU parsing return */
4863 dev_info(&pf
->pdev
->dev
, "Failed parsing LLDPDU from event buffer\n");
4867 /* No change detected in DCBX configs */
4868 if (!memcmp(&tmp_dcbx_cfg
, dcbx_cfg
, sizeof(tmp_dcbx_cfg
))) {
4869 dev_dbg(&pf
->pdev
->dev
, "No change detected in DCBX configuration.\n");
4873 need_reconfig
= i40e_dcb_need_reconfig(pf
, dcbx_cfg
, &tmp_dcbx_cfg
);
4875 i40e_dcbnl_flush_apps(pf
, &tmp_dcbx_cfg
);
4877 /* Overwrite the new configuration */
4878 *dcbx_cfg
= tmp_dcbx_cfg
;
4883 /* Enable DCB tagging only when more than one TC */
4884 if (i40e_dcb_get_num_tc(dcbx_cfg
) > 1)
4885 pf
->flags
|= I40E_FLAG_DCB_ENABLED
;
4887 pf
->flags
&= ~I40E_FLAG_DCB_ENABLED
;
4889 /* Reconfiguration needed quiesce all VSIs */
4890 i40e_pf_quiesce_all_vsi(pf
);
4892 /* Changes in configuration update VEB/VSI */
4893 i40e_dcb_reconfigure(pf
);
4895 i40e_pf_unquiesce_all_vsi(pf
);
4899 #endif /* CONFIG_I40E_DCB */
4902 * i40e_do_reset_safe - Protected reset path for userland calls.
4903 * @pf: board private structure
4904 * @reset_flags: which reset is requested
4907 void i40e_do_reset_safe(struct i40e_pf
*pf
, u32 reset_flags
)
4910 i40e_do_reset(pf
, reset_flags
);
4915 * i40e_handle_lan_overflow_event - Handler for LAN queue overflow event
4916 * @pf: board private structure
4917 * @e: event info posted on ARQ
4919 * Handler for LAN Queue Overflow Event generated by the firmware for PF
4922 static void i40e_handle_lan_overflow_event(struct i40e_pf
*pf
,
4923 struct i40e_arq_event_info
*e
)
4925 struct i40e_aqc_lan_overflow
*data
=
4926 (struct i40e_aqc_lan_overflow
*)&e
->desc
.params
.raw
;
4927 u32 queue
= le32_to_cpu(data
->prtdcb_rupto
);
4928 u32 qtx_ctl
= le32_to_cpu(data
->otx_ctl
);
4929 struct i40e_hw
*hw
= &pf
->hw
;
4933 dev_dbg(&pf
->pdev
->dev
, "overflow Rx Queue Number = %d QTX_CTL=0x%08x\n",
4936 /* Queue belongs to VF, find the VF and issue VF reset */
4937 if (((qtx_ctl
& I40E_QTX_CTL_PFVF_Q_MASK
)
4938 >> I40E_QTX_CTL_PFVF_Q_SHIFT
) == I40E_QTX_CTL_VF_QUEUE
) {
4939 vf_id
= (u16
)((qtx_ctl
& I40E_QTX_CTL_VFVM_INDX_MASK
)
4940 >> I40E_QTX_CTL_VFVM_INDX_SHIFT
);
4941 vf_id
-= hw
->func_caps
.vf_base_id
;
4942 vf
= &pf
->vf
[vf_id
];
4943 i40e_vc_notify_vf_reset(vf
);
4944 /* Allow VF to process pending reset notification */
4946 i40e_reset_vf(vf
, false);
4951 * i40e_service_event_complete - Finish up the service event
4952 * @pf: board private structure
4954 static void i40e_service_event_complete(struct i40e_pf
*pf
)
4956 BUG_ON(!test_bit(__I40E_SERVICE_SCHED
, &pf
->state
));
4958 /* flush memory to make sure state is correct before next watchog */
4959 smp_mb__before_atomic();
4960 clear_bit(__I40E_SERVICE_SCHED
, &pf
->state
);
4964 * i40e_get_cur_guaranteed_fd_count - Get the consumed guaranteed FD filters
4965 * @pf: board private structure
4967 int i40e_get_cur_guaranteed_fd_count(struct i40e_pf
*pf
)
4971 val
= rd32(&pf
->hw
, I40E_PFQF_FDSTAT
);
4972 fcnt_prog
= (val
& I40E_PFQF_FDSTAT_GUARANT_CNT_MASK
);
4977 * i40e_get_current_fd_count - Get the count of total FD filters programmed
4978 * @pf: board private structure
4980 int i40e_get_current_fd_count(struct i40e_pf
*pf
)
4983 val
= rd32(&pf
->hw
, I40E_PFQF_FDSTAT
);
4984 fcnt_prog
= (val
& I40E_PFQF_FDSTAT_GUARANT_CNT_MASK
) +
4985 ((val
& I40E_PFQF_FDSTAT_BEST_CNT_MASK
) >>
4986 I40E_PFQF_FDSTAT_BEST_CNT_SHIFT
);
4990 * i40e_fdir_check_and_reenable - Function to reenabe FD ATR or SB if disabled
4991 * @pf: board private structure
4993 void i40e_fdir_check_and_reenable(struct i40e_pf
*pf
)
4995 u32 fcnt_prog
, fcnt_avail
;
4997 /* Check if, FD SB or ATR was auto disabled and if there is enough room
5000 if ((pf
->flags
& I40E_FLAG_FD_ATR_ENABLED
) &&
5001 (pf
->flags
& I40E_FLAG_FD_SB_ENABLED
))
5003 fcnt_prog
= i40e_get_cur_guaranteed_fd_count(pf
);
5004 fcnt_avail
= pf
->fdir_pf_filter_count
;
5005 if (fcnt_prog
< (fcnt_avail
- I40E_FDIR_BUFFER_HEAD_ROOM
)) {
5006 if ((pf
->flags
& I40E_FLAG_FD_SB_ENABLED
) &&
5007 (pf
->auto_disable_flags
& I40E_FLAG_FD_SB_ENABLED
)) {
5008 pf
->auto_disable_flags
&= ~I40E_FLAG_FD_SB_ENABLED
;
5009 dev_info(&pf
->pdev
->dev
, "FD Sideband/ntuple is being enabled since we have space in the table now\n");
5012 /* Wait for some more space to be available to turn on ATR */
5013 if (fcnt_prog
< (fcnt_avail
- I40E_FDIR_BUFFER_HEAD_ROOM
* 2)) {
5014 if ((pf
->flags
& I40E_FLAG_FD_ATR_ENABLED
) &&
5015 (pf
->auto_disable_flags
& I40E_FLAG_FD_ATR_ENABLED
)) {
5016 pf
->auto_disable_flags
&= ~I40E_FLAG_FD_ATR_ENABLED
;
5017 dev_info(&pf
->pdev
->dev
, "ATR is being enabled since we have space in the table now\n");
5023 * i40e_fdir_reinit_subtask - Worker thread to reinit FDIR filter table
5024 * @pf: board private structure
5026 static void i40e_fdir_reinit_subtask(struct i40e_pf
*pf
)
5028 if (!(pf
->flags
& I40E_FLAG_FDIR_REQUIRES_REINIT
))
5031 /* if interface is down do nothing */
5032 if (test_bit(__I40E_DOWN
, &pf
->state
))
5034 i40e_fdir_check_and_reenable(pf
);
5036 if ((pf
->flags
& I40E_FLAG_FD_ATR_ENABLED
) &&
5037 (pf
->flags
& I40E_FLAG_FD_SB_ENABLED
))
5038 pf
->flags
&= ~I40E_FLAG_FDIR_REQUIRES_REINIT
;
5042 * i40e_vsi_link_event - notify VSI of a link event
5043 * @vsi: vsi to be notified
5044 * @link_up: link up or down
5046 static void i40e_vsi_link_event(struct i40e_vsi
*vsi
, bool link_up
)
5051 switch (vsi
->type
) {
5053 if (!vsi
->netdev
|| !vsi
->netdev_registered
)
5057 netif_carrier_on(vsi
->netdev
);
5058 netif_tx_wake_all_queues(vsi
->netdev
);
5060 netif_carrier_off(vsi
->netdev
);
5061 netif_tx_stop_all_queues(vsi
->netdev
);
5065 case I40E_VSI_SRIOV
:
5068 case I40E_VSI_VMDQ2
:
5070 case I40E_VSI_MIRROR
:
5072 /* there is no notification for other VSIs */
5078 * i40e_veb_link_event - notify elements on the veb of a link event
5079 * @veb: veb to be notified
5080 * @link_up: link up or down
5082 static void i40e_veb_link_event(struct i40e_veb
*veb
, bool link_up
)
5087 if (!veb
|| !veb
->pf
)
5091 /* depth first... */
5092 for (i
= 0; i
< I40E_MAX_VEB
; i
++)
5093 if (pf
->veb
[i
] && (pf
->veb
[i
]->uplink_seid
== veb
->seid
))
5094 i40e_veb_link_event(pf
->veb
[i
], link_up
);
5096 /* ... now the local VSIs */
5097 for (i
= 0; i
< pf
->num_alloc_vsi
; i
++)
5098 if (pf
->vsi
[i
] && (pf
->vsi
[i
]->uplink_seid
== veb
->seid
))
5099 i40e_vsi_link_event(pf
->vsi
[i
], link_up
);
5103 * i40e_link_event - Update netif_carrier status
5104 * @pf: board private structure
5106 static void i40e_link_event(struct i40e_pf
*pf
)
5108 bool new_link
, old_link
;
5110 new_link
= (pf
->hw
.phy
.link_info
.link_info
& I40E_AQ_LINK_UP
);
5111 old_link
= (pf
->hw
.phy
.link_info_old
.link_info
& I40E_AQ_LINK_UP
);
5113 if (new_link
== old_link
)
5115 if (!test_bit(__I40E_DOWN
, &pf
->vsi
[pf
->lan_vsi
]->state
))
5116 i40e_print_link_message(pf
->vsi
[pf
->lan_vsi
], new_link
);
5118 /* Notify the base of the switch tree connected to
5119 * the link. Floating VEBs are not notified.
5121 if (pf
->lan_veb
!= I40E_NO_VEB
&& pf
->veb
[pf
->lan_veb
])
5122 i40e_veb_link_event(pf
->veb
[pf
->lan_veb
], new_link
);
5124 i40e_vsi_link_event(pf
->vsi
[pf
->lan_vsi
], new_link
);
5127 i40e_vc_notify_link_state(pf
);
5129 if (pf
->flags
& I40E_FLAG_PTP
)
5130 i40e_ptp_set_increment(pf
);
5134 * i40e_check_hang_subtask - Check for hung queues and dropped interrupts
5135 * @pf: board private structure
5137 * Set the per-queue flags to request a check for stuck queues in the irq
5138 * clean functions, then force interrupts to be sure the irq clean is called.
5140 static void i40e_check_hang_subtask(struct i40e_pf
*pf
)
5144 /* If we're down or resetting, just bail */
5145 if (test_bit(__I40E_CONFIG_BUSY
, &pf
->state
))
5148 /* for each VSI/netdev
5150 * set the check flag
5152 * force an interrupt
5154 for (v
= 0; v
< pf
->num_alloc_vsi
; v
++) {
5155 struct i40e_vsi
*vsi
= pf
->vsi
[v
];
5159 test_bit(__I40E_DOWN
, &vsi
->state
) ||
5160 (vsi
->netdev
&& !netif_carrier_ok(vsi
->netdev
)))
5163 for (i
= 0; i
< vsi
->num_queue_pairs
; i
++) {
5164 set_check_for_tx_hang(vsi
->tx_rings
[i
]);
5165 if (test_bit(__I40E_HANG_CHECK_ARMED
,
5166 &vsi
->tx_rings
[i
]->state
))
5171 if (!(pf
->flags
& I40E_FLAG_MSIX_ENABLED
)) {
5172 wr32(&vsi
->back
->hw
, I40E_PFINT_DYN_CTL0
,
5173 (I40E_PFINT_DYN_CTL0_INTENA_MASK
|
5174 I40E_PFINT_DYN_CTL0_SWINT_TRIG_MASK
));
5176 u16 vec
= vsi
->base_vector
- 1;
5177 u32 val
= (I40E_PFINT_DYN_CTLN_INTENA_MASK
|
5178 I40E_PFINT_DYN_CTLN_SWINT_TRIG_MASK
);
5179 for (i
= 0; i
< vsi
->num_q_vectors
; i
++, vec
++)
5180 wr32(&vsi
->back
->hw
,
5181 I40E_PFINT_DYN_CTLN(vec
), val
);
5183 i40e_flush(&vsi
->back
->hw
);
5189 * i40e_watchdog_subtask - Check and bring link up
5190 * @pf: board private structure
5192 static void i40e_watchdog_subtask(struct i40e_pf
*pf
)
5196 /* if interface is down do nothing */
5197 if (test_bit(__I40E_DOWN
, &pf
->state
) ||
5198 test_bit(__I40E_CONFIG_BUSY
, &pf
->state
))
5201 /* Update the stats for active netdevs so the network stack
5202 * can look at updated numbers whenever it cares to
5204 for (i
= 0; i
< pf
->num_alloc_vsi
; i
++)
5205 if (pf
->vsi
[i
] && pf
->vsi
[i
]->netdev
)
5206 i40e_update_stats(pf
->vsi
[i
]);
5208 /* Update the stats for the active switching components */
5209 for (i
= 0; i
< I40E_MAX_VEB
; i
++)
5211 i40e_update_veb_stats(pf
->veb
[i
]);
5213 i40e_ptp_rx_hang(pf
->vsi
[pf
->lan_vsi
]);
5217 * i40e_reset_subtask - Set up for resetting the device and driver
5218 * @pf: board private structure
5220 static void i40e_reset_subtask(struct i40e_pf
*pf
)
5222 u32 reset_flags
= 0;
5225 if (test_bit(__I40E_REINIT_REQUESTED
, &pf
->state
)) {
5226 reset_flags
|= (1 << __I40E_REINIT_REQUESTED
);
5227 clear_bit(__I40E_REINIT_REQUESTED
, &pf
->state
);
5229 if (test_bit(__I40E_PF_RESET_REQUESTED
, &pf
->state
)) {
5230 reset_flags
|= (1 << __I40E_PF_RESET_REQUESTED
);
5231 clear_bit(__I40E_PF_RESET_REQUESTED
, &pf
->state
);
5233 if (test_bit(__I40E_CORE_RESET_REQUESTED
, &pf
->state
)) {
5234 reset_flags
|= (1 << __I40E_CORE_RESET_REQUESTED
);
5235 clear_bit(__I40E_CORE_RESET_REQUESTED
, &pf
->state
);
5237 if (test_bit(__I40E_GLOBAL_RESET_REQUESTED
, &pf
->state
)) {
5238 reset_flags
|= (1 << __I40E_GLOBAL_RESET_REQUESTED
);
5239 clear_bit(__I40E_GLOBAL_RESET_REQUESTED
, &pf
->state
);
5241 if (test_bit(__I40E_DOWN_REQUESTED
, &pf
->state
)) {
5242 reset_flags
|= (1 << __I40E_DOWN_REQUESTED
);
5243 clear_bit(__I40E_DOWN_REQUESTED
, &pf
->state
);
5246 /* If there's a recovery already waiting, it takes
5247 * precedence before starting a new reset sequence.
5249 if (test_bit(__I40E_RESET_INTR_RECEIVED
, &pf
->state
)) {
5250 i40e_handle_reset_warning(pf
);
5254 /* If we're already down or resetting, just bail */
5256 !test_bit(__I40E_DOWN
, &pf
->state
) &&
5257 !test_bit(__I40E_CONFIG_BUSY
, &pf
->state
))
5258 i40e_do_reset(pf
, reset_flags
);
5265 * i40e_handle_link_event - Handle link event
5266 * @pf: board private structure
5267 * @e: event info posted on ARQ
5269 static void i40e_handle_link_event(struct i40e_pf
*pf
,
5270 struct i40e_arq_event_info
*e
)
5272 struct i40e_hw
*hw
= &pf
->hw
;
5273 struct i40e_aqc_get_link_status
*status
=
5274 (struct i40e_aqc_get_link_status
*)&e
->desc
.params
.raw
;
5275 struct i40e_link_status
*hw_link_info
= &hw
->phy
.link_info
;
5277 /* save off old link status information */
5278 memcpy(&pf
->hw
.phy
.link_info_old
, hw_link_info
,
5279 sizeof(pf
->hw
.phy
.link_info_old
));
5281 /* update link status */
5282 hw_link_info
->phy_type
= (enum i40e_aq_phy_type
)status
->phy_type
;
5283 hw_link_info
->link_speed
= (enum i40e_aq_link_speed
)status
->link_speed
;
5284 hw_link_info
->link_info
= status
->link_info
;
5285 hw_link_info
->an_info
= status
->an_info
;
5286 hw_link_info
->ext_info
= status
->ext_info
;
5287 hw_link_info
->lse_enable
=
5288 le16_to_cpu(status
->command_flags
) &
5291 /* process the event */
5292 i40e_link_event(pf
);
5294 /* Do a new status request to re-enable LSE reporting
5295 * and load new status information into the hw struct,
5296 * then see if the status changed while processing the
5299 i40e_update_link_info(&pf
->hw
, true);
5300 i40e_link_event(pf
);
5304 * i40e_clean_adminq_subtask - Clean the AdminQ rings
5305 * @pf: board private structure
5307 static void i40e_clean_adminq_subtask(struct i40e_pf
*pf
)
5309 struct i40e_arq_event_info event
;
5310 struct i40e_hw
*hw
= &pf
->hw
;
5317 /* check for error indications */
5318 val
= rd32(&pf
->hw
, pf
->hw
.aq
.arq
.len
);
5320 if (val
& I40E_PF_ARQLEN_ARQVFE_MASK
) {
5321 dev_info(&pf
->pdev
->dev
, "ARQ VF Error detected\n");
5322 val
&= ~I40E_PF_ARQLEN_ARQVFE_MASK
;
5324 if (val
& I40E_PF_ARQLEN_ARQOVFL_MASK
) {
5325 dev_info(&pf
->pdev
->dev
, "ARQ Overflow Error detected\n");
5326 val
&= ~I40E_PF_ARQLEN_ARQOVFL_MASK
;
5328 if (val
& I40E_PF_ARQLEN_ARQCRIT_MASK
) {
5329 dev_info(&pf
->pdev
->dev
, "ARQ Critical Error detected\n");
5330 val
&= ~I40E_PF_ARQLEN_ARQCRIT_MASK
;
5333 wr32(&pf
->hw
, pf
->hw
.aq
.arq
.len
, val
);
5335 val
= rd32(&pf
->hw
, pf
->hw
.aq
.asq
.len
);
5337 if (val
& I40E_PF_ATQLEN_ATQVFE_MASK
) {
5338 dev_info(&pf
->pdev
->dev
, "ASQ VF Error detected\n");
5339 val
&= ~I40E_PF_ATQLEN_ATQVFE_MASK
;
5341 if (val
& I40E_PF_ATQLEN_ATQOVFL_MASK
) {
5342 dev_info(&pf
->pdev
->dev
, "ASQ Overflow Error detected\n");
5343 val
&= ~I40E_PF_ATQLEN_ATQOVFL_MASK
;
5345 if (val
& I40E_PF_ATQLEN_ATQCRIT_MASK
) {
5346 dev_info(&pf
->pdev
->dev
, "ASQ Critical Error detected\n");
5347 val
&= ~I40E_PF_ATQLEN_ATQCRIT_MASK
;
5350 wr32(&pf
->hw
, pf
->hw
.aq
.asq
.len
, val
);
5352 event
.msg_size
= I40E_MAX_AQ_BUF_SIZE
;
5353 event
.msg_buf
= kzalloc(event
.msg_size
, GFP_KERNEL
);
5358 event
.msg_size
= I40E_MAX_AQ_BUF_SIZE
; /* reinit each time */
5359 ret
= i40e_clean_arq_element(hw
, &event
, &pending
);
5360 if (ret
== I40E_ERR_ADMIN_QUEUE_NO_WORK
)
5363 dev_info(&pf
->pdev
->dev
, "ARQ event error %d\n", ret
);
5367 opcode
= le16_to_cpu(event
.desc
.opcode
);
5370 case i40e_aqc_opc_get_link_status
:
5371 i40e_handle_link_event(pf
, &event
);
5373 case i40e_aqc_opc_send_msg_to_pf
:
5374 ret
= i40e_vc_process_vf_msg(pf
,
5375 le16_to_cpu(event
.desc
.retval
),
5376 le32_to_cpu(event
.desc
.cookie_high
),
5377 le32_to_cpu(event
.desc
.cookie_low
),
5381 case i40e_aqc_opc_lldp_update_mib
:
5382 dev_dbg(&pf
->pdev
->dev
, "ARQ: Update LLDP MIB event received\n");
5383 #ifdef CONFIG_I40E_DCB
5385 ret
= i40e_handle_lldp_event(pf
, &event
);
5387 #endif /* CONFIG_I40E_DCB */
5389 case i40e_aqc_opc_event_lan_overflow
:
5390 dev_dbg(&pf
->pdev
->dev
, "ARQ LAN queue overflow event received\n");
5391 i40e_handle_lan_overflow_event(pf
, &event
);
5393 case i40e_aqc_opc_send_msg_to_peer
:
5394 dev_info(&pf
->pdev
->dev
, "ARQ: Msg from other pf\n");
5397 dev_info(&pf
->pdev
->dev
,
5398 "ARQ Error: Unknown event 0x%04x received\n",
5402 } while (pending
&& (i
++ < pf
->adminq_work_limit
));
5404 clear_bit(__I40E_ADMINQ_EVENT_PENDING
, &pf
->state
);
5405 /* re-enable Admin queue interrupt cause */
5406 val
= rd32(hw
, I40E_PFINT_ICR0_ENA
);
5407 val
|= I40E_PFINT_ICR0_ENA_ADMINQ_MASK
;
5408 wr32(hw
, I40E_PFINT_ICR0_ENA
, val
);
5411 kfree(event
.msg_buf
);
5415 * i40e_verify_eeprom - make sure eeprom is good to use
5416 * @pf: board private structure
5418 static void i40e_verify_eeprom(struct i40e_pf
*pf
)
5422 err
= i40e_diag_eeprom_test(&pf
->hw
);
5424 /* retry in case of garbage read */
5425 err
= i40e_diag_eeprom_test(&pf
->hw
);
5427 dev_info(&pf
->pdev
->dev
, "eeprom check failed (%d), Tx/Rx traffic disabled\n",
5429 set_bit(__I40E_BAD_EEPROM
, &pf
->state
);
5433 if (!err
&& test_bit(__I40E_BAD_EEPROM
, &pf
->state
)) {
5434 dev_info(&pf
->pdev
->dev
, "eeprom check passed, Tx/Rx traffic enabled\n");
5435 clear_bit(__I40E_BAD_EEPROM
, &pf
->state
);
5440 * i40e_reconstitute_veb - rebuild the VEB and anything connected to it
5441 * @veb: pointer to the VEB instance
5443 * This is a recursive function that first builds the attached VSIs then
5444 * recurses in to build the next layer of VEB. We track the connections
5445 * through our own index numbers because the seid's from the HW could
5446 * change across the reset.
5448 static int i40e_reconstitute_veb(struct i40e_veb
*veb
)
5450 struct i40e_vsi
*ctl_vsi
= NULL
;
5451 struct i40e_pf
*pf
= veb
->pf
;
5455 /* build VSI that owns this VEB, temporarily attached to base VEB */
5456 for (v
= 0; v
< pf
->num_alloc_vsi
&& !ctl_vsi
; v
++) {
5458 pf
->vsi
[v
]->veb_idx
== veb
->idx
&&
5459 pf
->vsi
[v
]->flags
& I40E_VSI_FLAG_VEB_OWNER
) {
5460 ctl_vsi
= pf
->vsi
[v
];
5465 dev_info(&pf
->pdev
->dev
,
5466 "missing owner VSI for veb_idx %d\n", veb
->idx
);
5468 goto end_reconstitute
;
5470 if (ctl_vsi
!= pf
->vsi
[pf
->lan_vsi
])
5471 ctl_vsi
->uplink_seid
= pf
->vsi
[pf
->lan_vsi
]->uplink_seid
;
5472 ret
= i40e_add_vsi(ctl_vsi
);
5474 dev_info(&pf
->pdev
->dev
,
5475 "rebuild of owner VSI failed: %d\n", ret
);
5476 goto end_reconstitute
;
5478 i40e_vsi_reset_stats(ctl_vsi
);
5480 /* create the VEB in the switch and move the VSI onto the VEB */
5481 ret
= i40e_add_veb(veb
, ctl_vsi
);
5483 goto end_reconstitute
;
5485 /* create the remaining VSIs attached to this VEB */
5486 for (v
= 0; v
< pf
->num_alloc_vsi
; v
++) {
5487 if (!pf
->vsi
[v
] || pf
->vsi
[v
] == ctl_vsi
)
5490 if (pf
->vsi
[v
]->veb_idx
== veb
->idx
) {
5491 struct i40e_vsi
*vsi
= pf
->vsi
[v
];
5492 vsi
->uplink_seid
= veb
->seid
;
5493 ret
= i40e_add_vsi(vsi
);
5495 dev_info(&pf
->pdev
->dev
,
5496 "rebuild of vsi_idx %d failed: %d\n",
5498 goto end_reconstitute
;
5500 i40e_vsi_reset_stats(vsi
);
5504 /* create any VEBs attached to this VEB - RECURSION */
5505 for (veb_idx
= 0; veb_idx
< I40E_MAX_VEB
; veb_idx
++) {
5506 if (pf
->veb
[veb_idx
] && pf
->veb
[veb_idx
]->veb_idx
== veb
->idx
) {
5507 pf
->veb
[veb_idx
]->uplink_seid
= veb
->seid
;
5508 ret
= i40e_reconstitute_veb(pf
->veb
[veb_idx
]);
5519 * i40e_get_capabilities - get info about the HW
5520 * @pf: the PF struct
5522 static int i40e_get_capabilities(struct i40e_pf
*pf
)
5524 struct i40e_aqc_list_capabilities_element_resp
*cap_buf
;
5529 buf_len
= 40 * sizeof(struct i40e_aqc_list_capabilities_element_resp
);
5531 cap_buf
= kzalloc(buf_len
, GFP_KERNEL
);
5535 /* this loads the data into the hw struct for us */
5536 err
= i40e_aq_discover_capabilities(&pf
->hw
, cap_buf
, buf_len
,
5538 i40e_aqc_opc_list_func_capabilities
,
5540 /* data loaded, buffer no longer needed */
5543 if (pf
->hw
.aq
.asq_last_status
== I40E_AQ_RC_ENOMEM
) {
5544 /* retry with a larger buffer */
5545 buf_len
= data_size
;
5546 } else if (pf
->hw
.aq
.asq_last_status
!= I40E_AQ_RC_OK
) {
5547 dev_info(&pf
->pdev
->dev
,
5548 "capability discovery failed: aq=%d\n",
5549 pf
->hw
.aq
.asq_last_status
);
5554 if (((pf
->hw
.aq
.fw_maj_ver
== 2) && (pf
->hw
.aq
.fw_min_ver
< 22)) ||
5555 (pf
->hw
.aq
.fw_maj_ver
< 2)) {
5556 pf
->hw
.func_caps
.num_msix_vectors
++;
5557 pf
->hw
.func_caps
.num_msix_vectors_vf
++;
5560 if (pf
->hw
.debug_mask
& I40E_DEBUG_USER
)
5561 dev_info(&pf
->pdev
->dev
,
5562 "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",
5563 pf
->hw
.pf_id
, pf
->hw
.func_caps
.num_vfs
,
5564 pf
->hw
.func_caps
.num_msix_vectors
,
5565 pf
->hw
.func_caps
.num_msix_vectors_vf
,
5566 pf
->hw
.func_caps
.fd_filters_guaranteed
,
5567 pf
->hw
.func_caps
.fd_filters_best_effort
,
5568 pf
->hw
.func_caps
.num_tx_qp
,
5569 pf
->hw
.func_caps
.num_vsis
);
5571 #define DEF_NUM_VSI (1 + (pf->hw.func_caps.fcoe ? 1 : 0) \
5572 + pf->hw.func_caps.num_vfs)
5573 if (pf
->hw
.revision_id
== 0 && (DEF_NUM_VSI
> pf
->hw
.func_caps
.num_vsis
)) {
5574 dev_info(&pf
->pdev
->dev
,
5575 "got num_vsis %d, setting num_vsis to %d\n",
5576 pf
->hw
.func_caps
.num_vsis
, DEF_NUM_VSI
);
5577 pf
->hw
.func_caps
.num_vsis
= DEF_NUM_VSI
;
5583 static int i40e_vsi_clear(struct i40e_vsi
*vsi
);
5586 * i40e_fdir_sb_setup - initialize the Flow Director resources for Sideband
5587 * @pf: board private structure
5589 static void i40e_fdir_sb_setup(struct i40e_pf
*pf
)
5591 struct i40e_vsi
*vsi
;
5594 /* quick workaround for an NVM issue that leaves a critical register
5597 if (!rd32(&pf
->hw
, I40E_GLQF_HKEY(0))) {
5598 static const u32 hkey
[] = {
5599 0xe640d33f, 0xcdfe98ab, 0x73fa7161, 0x0d7a7d36,
5600 0xeacb7d61, 0xaa4f05b6, 0x9c5c89ed, 0xfc425ddb,
5601 0xa4654832, 0xfc7461d4, 0x8f827619, 0xf5c63c21,
5604 for (i
= 0; i
<= I40E_GLQF_HKEY_MAX_INDEX
; i
++)
5605 wr32(&pf
->hw
, I40E_GLQF_HKEY(i
), hkey
[i
]);
5608 if (!(pf
->flags
& I40E_FLAG_FD_SB_ENABLED
))
5611 /* find existing VSI and see if it needs configuring */
5613 for (i
= 0; i
< pf
->num_alloc_vsi
; i
++) {
5614 if (pf
->vsi
[i
] && pf
->vsi
[i
]->type
== I40E_VSI_FDIR
) {
5620 /* create a new VSI if none exists */
5622 vsi
= i40e_vsi_setup(pf
, I40E_VSI_FDIR
,
5623 pf
->vsi
[pf
->lan_vsi
]->seid
, 0);
5625 dev_info(&pf
->pdev
->dev
, "Couldn't create FDir VSI\n");
5626 pf
->flags
&= ~I40E_FLAG_FD_SB_ENABLED
;
5631 i40e_vsi_setup_irqhandler(vsi
, i40e_fdir_clean_ring
);
5635 * i40e_fdir_teardown - release the Flow Director resources
5636 * @pf: board private structure
5638 static void i40e_fdir_teardown(struct i40e_pf
*pf
)
5642 i40e_fdir_filter_exit(pf
);
5643 for (i
= 0; i
< pf
->num_alloc_vsi
; i
++) {
5644 if (pf
->vsi
[i
] && pf
->vsi
[i
]->type
== I40E_VSI_FDIR
) {
5645 i40e_vsi_release(pf
->vsi
[i
]);
5652 * i40e_prep_for_reset - prep for the core to reset
5653 * @pf: board private structure
5655 * Close up the VFs and other things in prep for pf Reset.
5657 static void i40e_prep_for_reset(struct i40e_pf
*pf
)
5659 struct i40e_hw
*hw
= &pf
->hw
;
5660 i40e_status ret
= 0;
5663 clear_bit(__I40E_RESET_INTR_RECEIVED
, &pf
->state
);
5664 if (test_and_set_bit(__I40E_RESET_RECOVERY_PENDING
, &pf
->state
))
5667 dev_dbg(&pf
->pdev
->dev
, "Tearing down internal switch for reset\n");
5669 /* quiesce the VSIs and their queues that are not already DOWN */
5670 i40e_pf_quiesce_all_vsi(pf
);
5672 for (v
= 0; v
< pf
->num_alloc_vsi
; v
++) {
5674 pf
->vsi
[v
]->seid
= 0;
5677 i40e_shutdown_adminq(&pf
->hw
);
5679 /* call shutdown HMC */
5680 if (hw
->hmc
.hmc_obj
) {
5681 ret
= i40e_shutdown_lan_hmc(hw
);
5683 dev_warn(&pf
->pdev
->dev
,
5684 "shutdown_lan_hmc failed: %d\n", ret
);
5689 * i40e_send_version - update firmware with driver version
5692 static void i40e_send_version(struct i40e_pf
*pf
)
5694 struct i40e_driver_version dv
;
5696 dv
.major_version
= DRV_VERSION_MAJOR
;
5697 dv
.minor_version
= DRV_VERSION_MINOR
;
5698 dv
.build_version
= DRV_VERSION_BUILD
;
5699 dv
.subbuild_version
= 0;
5700 strncpy(dv
.driver_string
, DRV_VERSION
, sizeof(dv
.driver_string
));
5701 i40e_aq_send_driver_version(&pf
->hw
, &dv
, NULL
);
5705 * i40e_reset_and_rebuild - reset and rebuild using a saved config
5706 * @pf: board private structure
5707 * @reinit: if the Main VSI needs to re-initialized.
5709 static void i40e_reset_and_rebuild(struct i40e_pf
*pf
, bool reinit
)
5711 struct i40e_hw
*hw
= &pf
->hw
;
5715 /* Now we wait for GRST to settle out.
5716 * We don't have to delete the VEBs or VSIs from the hw switch
5717 * because the reset will make them disappear.
5719 ret
= i40e_pf_reset(hw
);
5721 dev_info(&pf
->pdev
->dev
, "PF reset failed, %d\n", ret
);
5722 goto end_core_reset
;
5726 if (test_bit(__I40E_DOWN
, &pf
->state
))
5727 goto end_core_reset
;
5728 dev_dbg(&pf
->pdev
->dev
, "Rebuilding internal switch\n");
5730 /* rebuild the basics for the AdminQ, HMC, and initial HW switch */
5731 ret
= i40e_init_adminq(&pf
->hw
);
5733 dev_info(&pf
->pdev
->dev
, "Rebuild AdminQ failed, %d\n", ret
);
5734 goto end_core_reset
;
5737 /* re-verify the eeprom if we just had an EMP reset */
5738 if (test_bit(__I40E_EMP_RESET_REQUESTED
, &pf
->state
)) {
5739 clear_bit(__I40E_EMP_RESET_REQUESTED
, &pf
->state
);
5740 i40e_verify_eeprom(pf
);
5743 i40e_clear_pxe_mode(hw
);
5744 ret
= i40e_get_capabilities(pf
);
5746 dev_info(&pf
->pdev
->dev
, "i40e_get_capabilities failed, %d\n",
5748 goto end_core_reset
;
5751 ret
= i40e_init_lan_hmc(hw
, hw
->func_caps
.num_tx_qp
,
5752 hw
->func_caps
.num_rx_qp
,
5753 pf
->fcoe_hmc_cntx_num
, pf
->fcoe_hmc_filt_num
);
5755 dev_info(&pf
->pdev
->dev
, "init_lan_hmc failed: %d\n", ret
);
5756 goto end_core_reset
;
5758 ret
= i40e_configure_lan_hmc(hw
, I40E_HMC_MODEL_DIRECT_ONLY
);
5760 dev_info(&pf
->pdev
->dev
, "configure_lan_hmc failed: %d\n", ret
);
5761 goto end_core_reset
;
5764 #ifdef CONFIG_I40E_DCB
5765 ret
= i40e_init_pf_dcb(pf
);
5767 dev_info(&pf
->pdev
->dev
, "init_pf_dcb failed: %d\n", ret
);
5768 goto end_core_reset
;
5770 #endif /* CONFIG_I40E_DCB */
5772 /* do basic switch setup */
5773 ret
= i40e_setup_pf_switch(pf
, reinit
);
5775 goto end_core_reset
;
5777 /* Rebuild the VSIs and VEBs that existed before reset.
5778 * They are still in our local switch element arrays, so only
5779 * need to rebuild the switch model in the HW.
5781 * If there were VEBs but the reconstitution failed, we'll try
5782 * try to recover minimal use by getting the basic PF VSI working.
5784 if (pf
->vsi
[pf
->lan_vsi
]->uplink_seid
!= pf
->mac_seid
) {
5785 dev_dbg(&pf
->pdev
->dev
, "attempting to rebuild switch\n");
5786 /* find the one VEB connected to the MAC, and find orphans */
5787 for (v
= 0; v
< I40E_MAX_VEB
; v
++) {
5791 if (pf
->veb
[v
]->uplink_seid
== pf
->mac_seid
||
5792 pf
->veb
[v
]->uplink_seid
== 0) {
5793 ret
= i40e_reconstitute_veb(pf
->veb
[v
]);
5798 /* If Main VEB failed, we're in deep doodoo,
5799 * so give up rebuilding the switch and set up
5800 * for minimal rebuild of PF VSI.
5801 * If orphan failed, we'll report the error
5802 * but try to keep going.
5804 if (pf
->veb
[v
]->uplink_seid
== pf
->mac_seid
) {
5805 dev_info(&pf
->pdev
->dev
,
5806 "rebuild of switch failed: %d, will try to set up simple PF connection\n",
5808 pf
->vsi
[pf
->lan_vsi
]->uplink_seid
5811 } else if (pf
->veb
[v
]->uplink_seid
== 0) {
5812 dev_info(&pf
->pdev
->dev
,
5813 "rebuild of orphan VEB failed: %d\n",
5820 if (pf
->vsi
[pf
->lan_vsi
]->uplink_seid
== pf
->mac_seid
) {
5821 dev_dbg(&pf
->pdev
->dev
, "attempting to rebuild PF VSI\n");
5822 /* no VEB, so rebuild only the Main VSI */
5823 ret
= i40e_add_vsi(pf
->vsi
[pf
->lan_vsi
]);
5825 dev_info(&pf
->pdev
->dev
,
5826 "rebuild of Main VSI failed: %d\n", ret
);
5827 goto end_core_reset
;
5831 /* reinit the misc interrupt */
5832 if (pf
->flags
& I40E_FLAG_MSIX_ENABLED
)
5833 ret
= i40e_setup_misc_vector(pf
);
5835 /* restart the VSIs that were rebuilt and running before the reset */
5836 i40e_pf_unquiesce_all_vsi(pf
);
5838 if (pf
->num_alloc_vfs
) {
5839 for (v
= 0; v
< pf
->num_alloc_vfs
; v
++)
5840 i40e_reset_vf(&pf
->vf
[v
], true);
5843 /* tell the firmware that we're starting */
5844 i40e_send_version(pf
);
5847 clear_bit(__I40E_RESET_RECOVERY_PENDING
, &pf
->state
);
5851 * i40e_handle_reset_warning - prep for the pf to reset, reset and rebuild
5852 * @pf: board private structure
5854 * Close up the VFs and other things in prep for a Core Reset,
5855 * then get ready to rebuild the world.
5857 static void i40e_handle_reset_warning(struct i40e_pf
*pf
)
5859 i40e_prep_for_reset(pf
);
5860 i40e_reset_and_rebuild(pf
, false);
5864 * i40e_handle_mdd_event
5865 * @pf: pointer to the pf structure
5867 * Called from the MDD irq handler to identify possibly malicious vfs
5869 static void i40e_handle_mdd_event(struct i40e_pf
*pf
)
5871 struct i40e_hw
*hw
= &pf
->hw
;
5872 bool mdd_detected
= false;
5873 bool pf_mdd_detected
= false;
5878 if (!test_bit(__I40E_MDD_EVENT_PENDING
, &pf
->state
))
5881 /* find what triggered the MDD event */
5882 reg
= rd32(hw
, I40E_GL_MDET_TX
);
5883 if (reg
& I40E_GL_MDET_TX_VALID_MASK
) {
5884 u8 pf_num
= (reg
& I40E_GL_MDET_TX_PF_NUM_MASK
) >>
5885 I40E_GL_MDET_TX_PF_NUM_SHIFT
;
5886 u8 vf_num
= (reg
& I40E_GL_MDET_TX_VF_NUM_MASK
) >>
5887 I40E_GL_MDET_TX_VF_NUM_SHIFT
;
5888 u8 event
= (reg
& I40E_GL_MDET_TX_EVENT_SHIFT
) >>
5889 I40E_GL_MDET_TX_EVENT_SHIFT
;
5890 u8 queue
= (reg
& I40E_GL_MDET_TX_QUEUE_MASK
) >>
5891 I40E_GL_MDET_TX_QUEUE_SHIFT
;
5892 dev_info(&pf
->pdev
->dev
,
5893 "Malicious Driver Detection event 0x%02x on TX queue %d pf number 0x%02x vf number 0x%02x\n",
5894 event
, queue
, pf_num
, vf_num
);
5895 wr32(hw
, I40E_GL_MDET_TX
, 0xffffffff);
5896 mdd_detected
= true;
5898 reg
= rd32(hw
, I40E_GL_MDET_RX
);
5899 if (reg
& I40E_GL_MDET_RX_VALID_MASK
) {
5900 u8 func
= (reg
& I40E_GL_MDET_RX_FUNCTION_MASK
) >>
5901 I40E_GL_MDET_RX_FUNCTION_SHIFT
;
5902 u8 event
= (reg
& I40E_GL_MDET_RX_EVENT_SHIFT
) >>
5903 I40E_GL_MDET_RX_EVENT_SHIFT
;
5904 u8 queue
= (reg
& I40E_GL_MDET_RX_QUEUE_MASK
) >>
5905 I40E_GL_MDET_RX_QUEUE_SHIFT
;
5906 dev_info(&pf
->pdev
->dev
,
5907 "Malicious Driver Detection event 0x%02x on RX queue %d of function 0x%02x\n",
5908 event
, queue
, func
);
5909 wr32(hw
, I40E_GL_MDET_RX
, 0xffffffff);
5910 mdd_detected
= true;
5914 reg
= rd32(hw
, I40E_PF_MDET_TX
);
5915 if (reg
& I40E_PF_MDET_TX_VALID_MASK
) {
5916 wr32(hw
, I40E_PF_MDET_TX
, 0xFFFF);
5917 dev_info(&pf
->pdev
->dev
,
5918 "MDD TX event is for this function 0x%08x, requesting PF reset.\n",
5920 pf_mdd_detected
= true;
5922 reg
= rd32(hw
, I40E_PF_MDET_RX
);
5923 if (reg
& I40E_PF_MDET_RX_VALID_MASK
) {
5924 wr32(hw
, I40E_PF_MDET_RX
, 0xFFFF);
5925 dev_info(&pf
->pdev
->dev
,
5926 "MDD RX event is for this function 0x%08x, requesting PF reset.\n",
5928 pf_mdd_detected
= true;
5930 /* Queue belongs to the PF, initiate a reset */
5931 if (pf_mdd_detected
) {
5932 set_bit(__I40E_PF_RESET_REQUESTED
, &pf
->state
);
5933 i40e_service_event_schedule(pf
);
5937 /* see if one of the VFs needs its hand slapped */
5938 for (i
= 0; i
< pf
->num_alloc_vfs
&& mdd_detected
; i
++) {
5940 reg
= rd32(hw
, I40E_VP_MDET_TX(i
));
5941 if (reg
& I40E_VP_MDET_TX_VALID_MASK
) {
5942 wr32(hw
, I40E_VP_MDET_TX(i
), 0xFFFF);
5943 vf
->num_mdd_events
++;
5944 dev_info(&pf
->pdev
->dev
, "MDD TX event on VF %d\n", i
);
5947 reg
= rd32(hw
, I40E_VP_MDET_RX(i
));
5948 if (reg
& I40E_VP_MDET_RX_VALID_MASK
) {
5949 wr32(hw
, I40E_VP_MDET_RX(i
), 0xFFFF);
5950 vf
->num_mdd_events
++;
5951 dev_info(&pf
->pdev
->dev
, "MDD RX event on VF %d\n", i
);
5954 if (vf
->num_mdd_events
> I40E_DEFAULT_NUM_MDD_EVENTS_ALLOWED
) {
5955 dev_info(&pf
->pdev
->dev
,
5956 "Too many MDD events on VF %d, disabled\n", i
);
5957 dev_info(&pf
->pdev
->dev
,
5958 "Use PF Control I/F to re-enable the VF\n");
5959 set_bit(I40E_VF_STAT_DISABLED
, &vf
->vf_states
);
5963 /* re-enable mdd interrupt cause */
5964 clear_bit(__I40E_MDD_EVENT_PENDING
, &pf
->state
);
5965 reg
= rd32(hw
, I40E_PFINT_ICR0_ENA
);
5966 reg
|= I40E_PFINT_ICR0_ENA_MAL_DETECT_MASK
;
5967 wr32(hw
, I40E_PFINT_ICR0_ENA
, reg
);
5971 #ifdef CONFIG_I40E_VXLAN
5973 * i40e_sync_vxlan_filters_subtask - Sync the VSI filter list with HW
5974 * @pf: board private structure
5976 static void i40e_sync_vxlan_filters_subtask(struct i40e_pf
*pf
)
5978 struct i40e_hw
*hw
= &pf
->hw
;
5984 if (!(pf
->flags
& I40E_FLAG_VXLAN_FILTER_SYNC
))
5987 pf
->flags
&= ~I40E_FLAG_VXLAN_FILTER_SYNC
;
5989 for (i
= 0; i
< I40E_MAX_PF_UDP_OFFLOAD_PORTS
; i
++) {
5990 if (pf
->pending_vxlan_bitmap
& (1 << i
)) {
5991 pf
->pending_vxlan_bitmap
&= ~(1 << i
);
5992 port
= pf
->vxlan_ports
[i
];
5994 i40e_aq_add_udp_tunnel(hw
, ntohs(port
),
5995 I40E_AQC_TUNNEL_TYPE_VXLAN
,
5996 &filter_index
, NULL
)
5997 : i40e_aq_del_udp_tunnel(hw
, i
, NULL
);
6000 dev_info(&pf
->pdev
->dev
, "Failed to execute AQ command for %s port %d with index %d\n",
6001 port
? "adding" : "deleting",
6002 ntohs(port
), port
? i
: i
);
6004 pf
->vxlan_ports
[i
] = 0;
6006 dev_info(&pf
->pdev
->dev
, "%s port %d with AQ command with index %d\n",
6007 port
? "Added" : "Deleted",
6008 ntohs(port
), port
? i
: filter_index
);
6016 * i40e_service_task - Run the driver's async subtasks
6017 * @work: pointer to work_struct containing our data
6019 static void i40e_service_task(struct work_struct
*work
)
6021 struct i40e_pf
*pf
= container_of(work
,
6024 unsigned long start_time
= jiffies
;
6026 /* don't bother with service tasks if a reset is in progress */
6027 if (test_bit(__I40E_RESET_RECOVERY_PENDING
, &pf
->state
)) {
6028 i40e_service_event_complete(pf
);
6032 i40e_reset_subtask(pf
);
6033 i40e_handle_mdd_event(pf
);
6034 i40e_vc_process_vflr_event(pf
);
6035 i40e_watchdog_subtask(pf
);
6036 i40e_fdir_reinit_subtask(pf
);
6037 i40e_check_hang_subtask(pf
);
6038 i40e_sync_filters_subtask(pf
);
6039 #ifdef CONFIG_I40E_VXLAN
6040 i40e_sync_vxlan_filters_subtask(pf
);
6042 i40e_clean_adminq_subtask(pf
);
6044 i40e_service_event_complete(pf
);
6046 /* If the tasks have taken longer than one timer cycle or there
6047 * is more work to be done, reschedule the service task now
6048 * rather than wait for the timer to tick again.
6050 if (time_after(jiffies
, (start_time
+ pf
->service_timer_period
)) ||
6051 test_bit(__I40E_ADMINQ_EVENT_PENDING
, &pf
->state
) ||
6052 test_bit(__I40E_MDD_EVENT_PENDING
, &pf
->state
) ||
6053 test_bit(__I40E_VFLR_EVENT_PENDING
, &pf
->state
))
6054 i40e_service_event_schedule(pf
);
6058 * i40e_service_timer - timer callback
6059 * @data: pointer to PF struct
6061 static void i40e_service_timer(unsigned long data
)
6063 struct i40e_pf
*pf
= (struct i40e_pf
*)data
;
6065 mod_timer(&pf
->service_timer
,
6066 round_jiffies(jiffies
+ pf
->service_timer_period
));
6067 i40e_service_event_schedule(pf
);
6071 * i40e_set_num_rings_in_vsi - Determine number of rings in the VSI
6072 * @vsi: the VSI being configured
6074 static int i40e_set_num_rings_in_vsi(struct i40e_vsi
*vsi
)
6076 struct i40e_pf
*pf
= vsi
->back
;
6078 switch (vsi
->type
) {
6080 vsi
->alloc_queue_pairs
= pf
->num_lan_qps
;
6081 vsi
->num_desc
= ALIGN(I40E_DEFAULT_NUM_DESCRIPTORS
,
6082 I40E_REQ_DESCRIPTOR_MULTIPLE
);
6083 if (pf
->flags
& I40E_FLAG_MSIX_ENABLED
)
6084 vsi
->num_q_vectors
= pf
->num_lan_msix
;
6086 vsi
->num_q_vectors
= 1;
6091 vsi
->alloc_queue_pairs
= 1;
6092 vsi
->num_desc
= ALIGN(I40E_FDIR_RING_COUNT
,
6093 I40E_REQ_DESCRIPTOR_MULTIPLE
);
6094 vsi
->num_q_vectors
= 1;
6097 case I40E_VSI_VMDQ2
:
6098 vsi
->alloc_queue_pairs
= pf
->num_vmdq_qps
;
6099 vsi
->num_desc
= ALIGN(I40E_DEFAULT_NUM_DESCRIPTORS
,
6100 I40E_REQ_DESCRIPTOR_MULTIPLE
);
6101 vsi
->num_q_vectors
= pf
->num_vmdq_msix
;
6104 case I40E_VSI_SRIOV
:
6105 vsi
->alloc_queue_pairs
= pf
->num_vf_qps
;
6106 vsi
->num_desc
= ALIGN(I40E_DEFAULT_NUM_DESCRIPTORS
,
6107 I40E_REQ_DESCRIPTOR_MULTIPLE
);
6119 * i40e_vsi_alloc_arrays - Allocate queue and vector pointer arrays for the vsi
6120 * @type: VSI pointer
6121 * @alloc_qvectors: a bool to specify if q_vectors need to be allocated.
6123 * On error: returns error code (negative)
6124 * On success: returns 0
6126 static int i40e_vsi_alloc_arrays(struct i40e_vsi
*vsi
, bool alloc_qvectors
)
6131 /* allocate memory for both Tx and Rx ring pointers */
6132 size
= sizeof(struct i40e_ring
*) * vsi
->alloc_queue_pairs
* 2;
6133 vsi
->tx_rings
= kzalloc(size
, GFP_KERNEL
);
6136 vsi
->rx_rings
= &vsi
->tx_rings
[vsi
->alloc_queue_pairs
];
6138 if (alloc_qvectors
) {
6139 /* allocate memory for q_vector pointers */
6140 size
= sizeof(struct i40e_q_vectors
*) * vsi
->num_q_vectors
;
6141 vsi
->q_vectors
= kzalloc(size
, GFP_KERNEL
);
6142 if (!vsi
->q_vectors
) {
6150 kfree(vsi
->tx_rings
);
6155 * i40e_vsi_mem_alloc - Allocates the next available struct vsi in the PF
6156 * @pf: board private structure
6157 * @type: type of VSI
6159 * On error: returns error code (negative)
6160 * On success: returns vsi index in PF (positive)
6162 static int i40e_vsi_mem_alloc(struct i40e_pf
*pf
, enum i40e_vsi_type type
)
6165 struct i40e_vsi
*vsi
;
6169 /* Need to protect the allocation of the VSIs at the PF level */
6170 mutex_lock(&pf
->switch_mutex
);
6172 /* VSI list may be fragmented if VSI creation/destruction has
6173 * been happening. We can afford to do a quick scan to look
6174 * for any free VSIs in the list.
6176 * find next empty vsi slot, looping back around if necessary
6179 while (i
< pf
->num_alloc_vsi
&& pf
->vsi
[i
])
6181 if (i
>= pf
->num_alloc_vsi
) {
6183 while (i
< pf
->next_vsi
&& pf
->vsi
[i
])
6187 if (i
< pf
->num_alloc_vsi
&& !pf
->vsi
[i
]) {
6188 vsi_idx
= i
; /* Found one! */
6191 goto unlock_pf
; /* out of VSI slots! */
6195 vsi
= kzalloc(sizeof(*vsi
), GFP_KERNEL
);
6202 set_bit(__I40E_DOWN
, &vsi
->state
);
6205 vsi
->rx_itr_setting
= pf
->rx_itr_default
;
6206 vsi
->tx_itr_setting
= pf
->tx_itr_default
;
6207 vsi
->netdev_registered
= false;
6208 vsi
->work_limit
= I40E_DEFAULT_IRQ_WORK
;
6209 INIT_LIST_HEAD(&vsi
->mac_filter_list
);
6210 vsi
->irqs_ready
= false;
6212 ret
= i40e_set_num_rings_in_vsi(vsi
);
6216 ret
= i40e_vsi_alloc_arrays(vsi
, true);
6220 /* Setup default MSIX irq handler for VSI */
6221 i40e_vsi_setup_irqhandler(vsi
, i40e_msix_clean_rings
);
6223 pf
->vsi
[vsi_idx
] = vsi
;
6228 pf
->next_vsi
= i
- 1;
6231 mutex_unlock(&pf
->switch_mutex
);
6236 * i40e_vsi_free_arrays - Free queue and vector pointer arrays for the VSI
6237 * @type: VSI pointer
6238 * @free_qvectors: a bool to specify if q_vectors need to be freed.
6240 * On error: returns error code (negative)
6241 * On success: returns 0
6243 static void i40e_vsi_free_arrays(struct i40e_vsi
*vsi
, bool free_qvectors
)
6245 /* free the ring and vector containers */
6246 if (free_qvectors
) {
6247 kfree(vsi
->q_vectors
);
6248 vsi
->q_vectors
= NULL
;
6250 kfree(vsi
->tx_rings
);
6251 vsi
->tx_rings
= NULL
;
6252 vsi
->rx_rings
= NULL
;
6256 * i40e_vsi_clear - Deallocate the VSI provided
6257 * @vsi: the VSI being un-configured
6259 static int i40e_vsi_clear(struct i40e_vsi
*vsi
)
6270 mutex_lock(&pf
->switch_mutex
);
6271 if (!pf
->vsi
[vsi
->idx
]) {
6272 dev_err(&pf
->pdev
->dev
, "pf->vsi[%d] is NULL, just free vsi[%d](%p,type %d)\n",
6273 vsi
->idx
, vsi
->idx
, vsi
, vsi
->type
);
6277 if (pf
->vsi
[vsi
->idx
] != vsi
) {
6278 dev_err(&pf
->pdev
->dev
,
6279 "pf->vsi[%d](%p, type %d) != vsi[%d](%p,type %d): no free!\n",
6280 pf
->vsi
[vsi
->idx
]->idx
,
6282 pf
->vsi
[vsi
->idx
]->type
,
6283 vsi
->idx
, vsi
, vsi
->type
);
6287 /* updates the pf for this cleared vsi */
6288 i40e_put_lump(pf
->qp_pile
, vsi
->base_queue
, vsi
->idx
);
6289 i40e_put_lump(pf
->irq_pile
, vsi
->base_vector
, vsi
->idx
);
6291 i40e_vsi_free_arrays(vsi
, true);
6293 pf
->vsi
[vsi
->idx
] = NULL
;
6294 if (vsi
->idx
< pf
->next_vsi
)
6295 pf
->next_vsi
= vsi
->idx
;
6298 mutex_unlock(&pf
->switch_mutex
);
6306 * i40e_vsi_clear_rings - Deallocates the Rx and Tx rings for the provided VSI
6307 * @vsi: the VSI being cleaned
6309 static void i40e_vsi_clear_rings(struct i40e_vsi
*vsi
)
6313 if (vsi
->tx_rings
&& vsi
->tx_rings
[0]) {
6314 for (i
= 0; i
< vsi
->alloc_queue_pairs
; i
++) {
6315 kfree_rcu(vsi
->tx_rings
[i
], rcu
);
6316 vsi
->tx_rings
[i
] = NULL
;
6317 vsi
->rx_rings
[i
] = NULL
;
6323 * i40e_alloc_rings - Allocates the Rx and Tx rings for the provided VSI
6324 * @vsi: the VSI being configured
6326 static int i40e_alloc_rings(struct i40e_vsi
*vsi
)
6328 struct i40e_ring
*tx_ring
, *rx_ring
;
6329 struct i40e_pf
*pf
= vsi
->back
;
6332 /* Set basic values in the rings to be used later during open() */
6333 for (i
= 0; i
< vsi
->alloc_queue_pairs
; i
++) {
6334 /* allocate space for both Tx and Rx in one shot */
6335 tx_ring
= kzalloc(sizeof(struct i40e_ring
) * 2, GFP_KERNEL
);
6339 tx_ring
->queue_index
= i
;
6340 tx_ring
->reg_idx
= vsi
->base_queue
+ i
;
6341 tx_ring
->ring_active
= false;
6343 tx_ring
->netdev
= vsi
->netdev
;
6344 tx_ring
->dev
= &pf
->pdev
->dev
;
6345 tx_ring
->count
= vsi
->num_desc
;
6347 tx_ring
->dcb_tc
= 0;
6348 vsi
->tx_rings
[i
] = tx_ring
;
6350 rx_ring
= &tx_ring
[1];
6351 rx_ring
->queue_index
= i
;
6352 rx_ring
->reg_idx
= vsi
->base_queue
+ i
;
6353 rx_ring
->ring_active
= false;
6355 rx_ring
->netdev
= vsi
->netdev
;
6356 rx_ring
->dev
= &pf
->pdev
->dev
;
6357 rx_ring
->count
= vsi
->num_desc
;
6359 rx_ring
->dcb_tc
= 0;
6360 if (pf
->flags
& I40E_FLAG_16BYTE_RX_DESC_ENABLED
)
6361 set_ring_16byte_desc_enabled(rx_ring
);
6363 clear_ring_16byte_desc_enabled(rx_ring
);
6364 vsi
->rx_rings
[i
] = rx_ring
;
6370 i40e_vsi_clear_rings(vsi
);
6375 * i40e_reserve_msix_vectors - Reserve MSI-X vectors in the kernel
6376 * @pf: board private structure
6377 * @vectors: the number of MSI-X vectors to request
6379 * Returns the number of vectors reserved, or error
6381 static int i40e_reserve_msix_vectors(struct i40e_pf
*pf
, int vectors
)
6383 vectors
= pci_enable_msix_range(pf
->pdev
, pf
->msix_entries
,
6384 I40E_MIN_MSIX
, vectors
);
6386 dev_info(&pf
->pdev
->dev
,
6387 "MSI-X vector reservation failed: %d\n", vectors
);
6395 * i40e_init_msix - Setup the MSIX capability
6396 * @pf: board private structure
6398 * Work with the OS to set up the MSIX vectors needed.
6400 * Returns 0 on success, negative on failure
6402 static int i40e_init_msix(struct i40e_pf
*pf
)
6404 i40e_status err
= 0;
6405 struct i40e_hw
*hw
= &pf
->hw
;
6409 if (!(pf
->flags
& I40E_FLAG_MSIX_ENABLED
))
6412 /* The number of vectors we'll request will be comprised of:
6413 * - Add 1 for "other" cause for Admin Queue events, etc.
6414 * - The number of LAN queue pairs
6415 * - Queues being used for RSS.
6416 * We don't need as many as max_rss_size vectors.
6417 * use rss_size instead in the calculation since that
6418 * is governed by number of cpus in the system.
6419 * - assumes symmetric Tx/Rx pairing
6420 * - The number of VMDq pairs
6421 * Once we count this up, try the request.
6423 * If we can't get what we want, we'll simplify to nearly nothing
6424 * and try again. If that still fails, we punt.
6426 pf
->num_lan_msix
= pf
->num_lan_qps
- (pf
->rss_size_max
- pf
->rss_size
);
6427 pf
->num_vmdq_msix
= pf
->num_vmdq_qps
;
6428 v_budget
= 1 + pf
->num_lan_msix
;
6429 v_budget
+= (pf
->num_vmdq_vsis
* pf
->num_vmdq_msix
);
6430 if (pf
->flags
& I40E_FLAG_FD_SB_ENABLED
)
6433 /* Scale down if necessary, and the rings will share vectors */
6434 v_budget
= min_t(int, v_budget
, hw
->func_caps
.num_msix_vectors
);
6436 pf
->msix_entries
= kcalloc(v_budget
, sizeof(struct msix_entry
),
6438 if (!pf
->msix_entries
)
6441 for (i
= 0; i
< v_budget
; i
++)
6442 pf
->msix_entries
[i
].entry
= i
;
6443 vec
= i40e_reserve_msix_vectors(pf
, v_budget
);
6445 if (vec
!= v_budget
) {
6446 /* If we have limited resources, we will start with no vectors
6447 * for the special features and then allocate vectors to some
6448 * of these features based on the policy and at the end disable
6449 * the features that did not get any vectors.
6451 pf
->num_vmdq_msix
= 0;
6454 if (vec
< I40E_MIN_MSIX
) {
6455 pf
->flags
&= ~I40E_FLAG_MSIX_ENABLED
;
6456 kfree(pf
->msix_entries
);
6457 pf
->msix_entries
= NULL
;
6460 } else if (vec
== I40E_MIN_MSIX
) {
6461 /* Adjust for minimal MSIX use */
6462 pf
->num_vmdq_vsis
= 0;
6463 pf
->num_vmdq_qps
= 0;
6464 pf
->num_lan_qps
= 1;
6465 pf
->num_lan_msix
= 1;
6467 } else if (vec
!= v_budget
) {
6468 /* reserve the misc vector */
6471 /* Scale vector usage down */
6472 pf
->num_vmdq_msix
= 1; /* force VMDqs to only one vector */
6473 pf
->num_vmdq_vsis
= 1;
6475 /* partition out the remaining vectors */
6478 pf
->num_lan_msix
= 1;
6481 pf
->num_lan_msix
= 2;
6484 pf
->num_lan_msix
= min_t(int, (vec
/ 2),
6486 pf
->num_vmdq_vsis
= min_t(int, (vec
- pf
->num_lan_msix
),
6487 I40E_DEFAULT_NUM_VMDQ_VSI
);
6492 if ((pf
->flags
& I40E_FLAG_VMDQ_ENABLED
) &&
6493 (pf
->num_vmdq_msix
== 0)) {
6494 dev_info(&pf
->pdev
->dev
, "VMDq disabled, not enough MSI-X vectors\n");
6495 pf
->flags
&= ~I40E_FLAG_VMDQ_ENABLED
;
6501 * i40e_vsi_alloc_q_vector - Allocate memory for a single interrupt vector
6502 * @vsi: the VSI being configured
6503 * @v_idx: index of the vector in the vsi struct
6505 * We allocate one q_vector. If allocation fails we return -ENOMEM.
6507 static int i40e_vsi_alloc_q_vector(struct i40e_vsi
*vsi
, int v_idx
)
6509 struct i40e_q_vector
*q_vector
;
6511 /* allocate q_vector */
6512 q_vector
= kzalloc(sizeof(struct i40e_q_vector
), GFP_KERNEL
);
6516 q_vector
->vsi
= vsi
;
6517 q_vector
->v_idx
= v_idx
;
6518 cpumask_set_cpu(v_idx
, &q_vector
->affinity_mask
);
6520 netif_napi_add(vsi
->netdev
, &q_vector
->napi
,
6521 i40e_napi_poll
, NAPI_POLL_WEIGHT
);
6523 q_vector
->rx
.latency_range
= I40E_LOW_LATENCY
;
6524 q_vector
->tx
.latency_range
= I40E_LOW_LATENCY
;
6526 /* tie q_vector and vsi together */
6527 vsi
->q_vectors
[v_idx
] = q_vector
;
6533 * i40e_vsi_alloc_q_vectors - Allocate memory for interrupt vectors
6534 * @vsi: the VSI being configured
6536 * We allocate one q_vector per queue interrupt. If allocation fails we
6539 static int i40e_vsi_alloc_q_vectors(struct i40e_vsi
*vsi
)
6541 struct i40e_pf
*pf
= vsi
->back
;
6542 int v_idx
, num_q_vectors
;
6545 /* if not MSIX, give the one vector only to the LAN VSI */
6546 if (pf
->flags
& I40E_FLAG_MSIX_ENABLED
)
6547 num_q_vectors
= vsi
->num_q_vectors
;
6548 else if (vsi
== pf
->vsi
[pf
->lan_vsi
])
6553 for (v_idx
= 0; v_idx
< num_q_vectors
; v_idx
++) {
6554 err
= i40e_vsi_alloc_q_vector(vsi
, v_idx
);
6563 i40e_free_q_vector(vsi
, v_idx
);
6569 * i40e_init_interrupt_scheme - Determine proper interrupt scheme
6570 * @pf: board private structure to initialize
6572 static void i40e_init_interrupt_scheme(struct i40e_pf
*pf
)
6576 if (pf
->flags
& I40E_FLAG_MSIX_ENABLED
) {
6577 err
= i40e_init_msix(pf
);
6579 pf
->flags
&= ~(I40E_FLAG_MSIX_ENABLED
|
6580 I40E_FLAG_RSS_ENABLED
|
6581 I40E_FLAG_DCB_CAPABLE
|
6582 I40E_FLAG_SRIOV_ENABLED
|
6583 I40E_FLAG_FD_SB_ENABLED
|
6584 I40E_FLAG_FD_ATR_ENABLED
|
6585 I40E_FLAG_VMDQ_ENABLED
);
6587 /* rework the queue expectations without MSIX */
6588 i40e_determine_queue_usage(pf
);
6592 if (!(pf
->flags
& I40E_FLAG_MSIX_ENABLED
) &&
6593 (pf
->flags
& I40E_FLAG_MSI_ENABLED
)) {
6594 dev_info(&pf
->pdev
->dev
, "MSI-X not available, trying MSI\n");
6595 err
= pci_enable_msi(pf
->pdev
);
6597 dev_info(&pf
->pdev
->dev
, "MSI init failed - %d\n", err
);
6598 pf
->flags
&= ~I40E_FLAG_MSI_ENABLED
;
6602 if (!(pf
->flags
& (I40E_FLAG_MSIX_ENABLED
| I40E_FLAG_MSI_ENABLED
)))
6603 dev_info(&pf
->pdev
->dev
, "MSI-X and MSI not available, falling back to Legacy IRQ\n");
6605 /* track first vector for misc interrupts */
6606 err
= i40e_get_lump(pf
, pf
->irq_pile
, 1, I40E_PILE_VALID_BIT
-1);
6610 * i40e_setup_misc_vector - Setup the misc vector to handle non queue events
6611 * @pf: board private structure
6613 * This sets up the handler for MSIX 0, which is used to manage the
6614 * non-queue interrupts, e.g. AdminQ and errors. This is not used
6615 * when in MSI or Legacy interrupt mode.
6617 static int i40e_setup_misc_vector(struct i40e_pf
*pf
)
6619 struct i40e_hw
*hw
= &pf
->hw
;
6622 /* Only request the irq if this is the first time through, and
6623 * not when we're rebuilding after a Reset
6625 if (!test_bit(__I40E_RESET_RECOVERY_PENDING
, &pf
->state
)) {
6626 err
= request_irq(pf
->msix_entries
[0].vector
,
6627 i40e_intr
, 0, pf
->misc_int_name
, pf
);
6629 dev_info(&pf
->pdev
->dev
,
6630 "request_irq for %s failed: %d\n",
6631 pf
->misc_int_name
, err
);
6636 i40e_enable_misc_int_causes(hw
);
6638 /* associate no queues to the misc vector */
6639 wr32(hw
, I40E_PFINT_LNKLST0
, I40E_QUEUE_END_OF_LIST
);
6640 wr32(hw
, I40E_PFINT_ITR0(I40E_RX_ITR
), I40E_ITR_8K
);
6644 i40e_irq_dynamic_enable_icr0(pf
);
6650 * i40e_config_rss - Prepare for RSS if used
6651 * @pf: board private structure
6653 static int i40e_config_rss(struct i40e_pf
*pf
)
6655 /* Set of random keys generated using kernel random number generator */
6656 static const u32 seed
[I40E_PFQF_HKEY_MAX_INDEX
+ 1] = {0x41b01687,
6657 0x183cfd8c, 0xce880440, 0x580cbc3c, 0x35897377,
6658 0x328b25e1, 0x4fa98922, 0xb7d90c14, 0xd5bad70d,
6659 0xcd15a2c1, 0xe8580225, 0x4a1e9d11, 0xfe5731be};
6660 struct i40e_hw
*hw
= &pf
->hw
;
6666 /* Fill out hash function seed */
6667 for (i
= 0; i
<= I40E_PFQF_HKEY_MAX_INDEX
; i
++)
6668 wr32(hw
, I40E_PFQF_HKEY(i
), seed
[i
]);
6670 /* By default we enable TCP/UDP with IPv4/IPv6 ptypes */
6671 hena
= (u64
)rd32(hw
, I40E_PFQF_HENA(0)) |
6672 ((u64
)rd32(hw
, I40E_PFQF_HENA(1)) << 32);
6673 hena
|= I40E_DEFAULT_RSS_HENA
;
6674 wr32(hw
, I40E_PFQF_HENA(0), (u32
)hena
);
6675 wr32(hw
, I40E_PFQF_HENA(1), (u32
)(hena
>> 32));
6677 /* Check capability and Set table size and register per hw expectation*/
6678 reg_val
= rd32(hw
, I40E_PFQF_CTL_0
);
6679 if (hw
->func_caps
.rss_table_size
== 512) {
6680 reg_val
|= I40E_PFQF_CTL_0_HASHLUTSIZE_512
;
6681 pf
->rss_table_size
= 512;
6683 pf
->rss_table_size
= 128;
6684 reg_val
&= ~I40E_PFQF_CTL_0_HASHLUTSIZE_512
;
6686 wr32(hw
, I40E_PFQF_CTL_0
, reg_val
);
6688 /* Populate the LUT with max no. of queues in round robin fashion */
6689 for (i
= 0, j
= 0; i
< pf
->rss_table_size
; i
++, j
++) {
6691 /* The assumption is that lan qp count will be the highest
6692 * qp count for any PF VSI that needs RSS.
6693 * If multiple VSIs need RSS support, all the qp counts
6694 * for those VSIs should be a power of 2 for RSS to work.
6695 * If LAN VSI is the only consumer for RSS then this requirement
6698 if (j
== pf
->rss_size
)
6700 /* lut = 4-byte sliding window of 4 lut entries */
6701 lut
= (lut
<< 8) | (j
&
6702 ((0x1 << pf
->hw
.func_caps
.rss_table_entry_width
) - 1));
6703 /* On i = 3, we have 4 entries in lut; write to the register */
6705 wr32(hw
, I40E_PFQF_HLUT(i
>> 2), lut
);
6713 * i40e_reconfig_rss_queues - change number of queues for rss and rebuild
6714 * @pf: board private structure
6715 * @queue_count: the requested queue count for rss.
6717 * returns 0 if rss is not enabled, if enabled returns the final rss queue
6718 * count which may be different from the requested queue count.
6720 int i40e_reconfig_rss_queues(struct i40e_pf
*pf
, int queue_count
)
6722 if (!(pf
->flags
& I40E_FLAG_RSS_ENABLED
))
6725 queue_count
= min_t(int, queue_count
, pf
->rss_size_max
);
6727 if (queue_count
!= pf
->rss_size
) {
6728 i40e_prep_for_reset(pf
);
6730 pf
->rss_size
= queue_count
;
6732 i40e_reset_and_rebuild(pf
, true);
6733 i40e_config_rss(pf
);
6735 dev_info(&pf
->pdev
->dev
, "RSS count: %d\n", pf
->rss_size
);
6736 return pf
->rss_size
;
6740 * i40e_sw_init - Initialize general software structures (struct i40e_pf)
6741 * @pf: board private structure to initialize
6743 * i40e_sw_init initializes the Adapter private data structure.
6744 * Fields are initialized based on PCI device information and
6745 * OS network device settings (MTU size).
6747 static int i40e_sw_init(struct i40e_pf
*pf
)
6752 pf
->msg_enable
= netif_msg_init(I40E_DEFAULT_MSG_ENABLE
,
6753 (NETIF_MSG_DRV
|NETIF_MSG_PROBE
|NETIF_MSG_LINK
));
6754 pf
->hw
.debug_mask
= pf
->msg_enable
| I40E_DEBUG_DIAG
;
6755 if (debug
!= -1 && debug
!= I40E_DEFAULT_MSG_ENABLE
) {
6756 if (I40E_DEBUG_USER
& debug
)
6757 pf
->hw
.debug_mask
= debug
;
6758 pf
->msg_enable
= netif_msg_init((debug
& ~I40E_DEBUG_USER
),
6759 I40E_DEFAULT_MSG_ENABLE
);
6762 /* Set default capability flags */
6763 pf
->flags
= I40E_FLAG_RX_CSUM_ENABLED
|
6764 I40E_FLAG_MSI_ENABLED
|
6765 I40E_FLAG_MSIX_ENABLED
|
6766 I40E_FLAG_RX_1BUF_ENABLED
;
6768 /* Set default ITR */
6769 pf
->rx_itr_default
= I40E_ITR_DYNAMIC
| I40E_ITR_RX_DEF
;
6770 pf
->tx_itr_default
= I40E_ITR_DYNAMIC
| I40E_ITR_TX_DEF
;
6772 /* Depending on PF configurations, it is possible that the RSS
6773 * maximum might end up larger than the available queues
6775 pf
->rss_size_max
= 0x1 << pf
->hw
.func_caps
.rss_table_entry_width
;
6776 pf
->rss_size_max
= min_t(int, pf
->rss_size_max
,
6777 pf
->hw
.func_caps
.num_tx_qp
);
6778 if (pf
->hw
.func_caps
.rss
) {
6779 pf
->flags
|= I40E_FLAG_RSS_ENABLED
;
6780 pf
->rss_size
= min_t(int, pf
->rss_size_max
, num_online_cpus());
6785 /* MFP mode enabled */
6786 if (pf
->hw
.func_caps
.npar_enable
|| pf
->hw
.func_caps
.mfp_mode_1
) {
6787 pf
->flags
|= I40E_FLAG_MFP_ENABLED
;
6788 dev_info(&pf
->pdev
->dev
, "MFP mode Enabled\n");
6791 /* FW/NVM is not yet fixed in this regard */
6792 if ((pf
->hw
.func_caps
.fd_filters_guaranteed
> 0) ||
6793 (pf
->hw
.func_caps
.fd_filters_best_effort
> 0)) {
6794 pf
->flags
|= I40E_FLAG_FD_ATR_ENABLED
;
6795 pf
->atr_sample_rate
= I40E_DEFAULT_ATR_SAMPLE_RATE
;
6796 /* Setup a counter for fd_atr per pf */
6797 pf
->fd_atr_cnt_idx
= I40E_FD_ATR_STAT_IDX(pf
->hw
.pf_id
);
6798 if (!(pf
->flags
& I40E_FLAG_MFP_ENABLED
)) {
6799 pf
->flags
|= I40E_FLAG_FD_SB_ENABLED
;
6800 /* Setup a counter for fd_sb per pf */
6801 pf
->fd_sb_cnt_idx
= I40E_FD_SB_STAT_IDX(pf
->hw
.pf_id
);
6803 dev_info(&pf
->pdev
->dev
,
6804 "Flow Director Sideband mode Disabled in MFP mode\n");
6806 pf
->fdir_pf_filter_count
=
6807 pf
->hw
.func_caps
.fd_filters_guaranteed
;
6808 pf
->hw
.fdir_shared_filter_count
=
6809 pf
->hw
.func_caps
.fd_filters_best_effort
;
6812 if (pf
->hw
.func_caps
.vmdq
) {
6813 pf
->flags
|= I40E_FLAG_VMDQ_ENABLED
;
6814 pf
->num_vmdq_vsis
= I40E_DEFAULT_NUM_VMDQ_VSI
;
6815 pf
->num_vmdq_qps
= I40E_DEFAULT_QUEUES_PER_VMDQ
;
6818 #ifdef CONFIG_PCI_IOV
6819 if (pf
->hw
.func_caps
.num_vfs
) {
6820 pf
->num_vf_qps
= I40E_DEFAULT_QUEUES_PER_VF
;
6821 pf
->flags
|= I40E_FLAG_SRIOV_ENABLED
;
6822 pf
->num_req_vfs
= min_t(int,
6823 pf
->hw
.func_caps
.num_vfs
,
6826 #endif /* CONFIG_PCI_IOV */
6827 pf
->eeprom_version
= 0xDEAD;
6828 pf
->lan_veb
= I40E_NO_VEB
;
6829 pf
->lan_vsi
= I40E_NO_VSI
;
6831 /* set up queue assignment tracking */
6832 size
= sizeof(struct i40e_lump_tracking
)
6833 + (sizeof(u16
) * pf
->hw
.func_caps
.num_tx_qp
);
6834 pf
->qp_pile
= kzalloc(size
, GFP_KERNEL
);
6839 pf
->qp_pile
->num_entries
= pf
->hw
.func_caps
.num_tx_qp
;
6840 pf
->qp_pile
->search_hint
= 0;
6842 /* set up vector assignment tracking */
6843 size
= sizeof(struct i40e_lump_tracking
)
6844 + (sizeof(u16
) * pf
->hw
.func_caps
.num_msix_vectors
);
6845 pf
->irq_pile
= kzalloc(size
, GFP_KERNEL
);
6846 if (!pf
->irq_pile
) {
6851 pf
->irq_pile
->num_entries
= pf
->hw
.func_caps
.num_msix_vectors
;
6852 pf
->irq_pile
->search_hint
= 0;
6854 pf
->tx_timeout_recovery_level
= 1;
6856 mutex_init(&pf
->switch_mutex
);
6863 * i40e_set_ntuple - set the ntuple feature flag and take action
6864 * @pf: board private structure to initialize
6865 * @features: the feature set that the stack is suggesting
6867 * returns a bool to indicate if reset needs to happen
6869 bool i40e_set_ntuple(struct i40e_pf
*pf
, netdev_features_t features
)
6871 bool need_reset
= false;
6873 /* Check if Flow Director n-tuple support was enabled or disabled. If
6874 * the state changed, we need to reset.
6876 if (features
& NETIF_F_NTUPLE
) {
6877 /* Enable filters and mark for reset */
6878 if (!(pf
->flags
& I40E_FLAG_FD_SB_ENABLED
))
6880 pf
->flags
|= I40E_FLAG_FD_SB_ENABLED
;
6882 /* turn off filters, mark for reset and clear SW filter list */
6883 if (pf
->flags
& I40E_FLAG_FD_SB_ENABLED
) {
6885 i40e_fdir_filter_exit(pf
);
6887 pf
->flags
&= ~I40E_FLAG_FD_SB_ENABLED
;
6888 pf
->auto_disable_flags
&= ~I40E_FLAG_FD_SB_ENABLED
;
6889 /* if ATR was auto disabled it can be re-enabled. */
6890 if ((pf
->flags
& I40E_FLAG_FD_ATR_ENABLED
) &&
6891 (pf
->auto_disable_flags
& I40E_FLAG_FD_ATR_ENABLED
))
6892 pf
->auto_disable_flags
&= ~I40E_FLAG_FD_ATR_ENABLED
;
6898 * i40e_set_features - set the netdev feature flags
6899 * @netdev: ptr to the netdev being adjusted
6900 * @features: the feature set that the stack is suggesting
6902 static int i40e_set_features(struct net_device
*netdev
,
6903 netdev_features_t features
)
6905 struct i40e_netdev_priv
*np
= netdev_priv(netdev
);
6906 struct i40e_vsi
*vsi
= np
->vsi
;
6907 struct i40e_pf
*pf
= vsi
->back
;
6910 if (features
& NETIF_F_HW_VLAN_CTAG_RX
)
6911 i40e_vlan_stripping_enable(vsi
);
6913 i40e_vlan_stripping_disable(vsi
);
6915 need_reset
= i40e_set_ntuple(pf
, features
);
6918 i40e_do_reset(pf
, (1 << __I40E_PF_RESET_REQUESTED
));
6923 #ifdef CONFIG_I40E_VXLAN
6925 * i40e_get_vxlan_port_idx - Lookup a possibly offloaded for Rx UDP port
6926 * @pf: board private structure
6927 * @port: The UDP port to look up
6929 * Returns the index number or I40E_MAX_PF_UDP_OFFLOAD_PORTS if port not found
6931 static u8
i40e_get_vxlan_port_idx(struct i40e_pf
*pf
, __be16 port
)
6935 for (i
= 0; i
< I40E_MAX_PF_UDP_OFFLOAD_PORTS
; i
++) {
6936 if (pf
->vxlan_ports
[i
] == port
)
6944 * i40e_add_vxlan_port - Get notifications about VXLAN ports that come up
6945 * @netdev: This physical port's netdev
6946 * @sa_family: Socket Family that VXLAN is notifying us about
6947 * @port: New UDP port number that VXLAN started listening to
6949 static void i40e_add_vxlan_port(struct net_device
*netdev
,
6950 sa_family_t sa_family
, __be16 port
)
6952 struct i40e_netdev_priv
*np
= netdev_priv(netdev
);
6953 struct i40e_vsi
*vsi
= np
->vsi
;
6954 struct i40e_pf
*pf
= vsi
->back
;
6958 if (sa_family
== AF_INET6
)
6961 idx
= i40e_get_vxlan_port_idx(pf
, port
);
6963 /* Check if port already exists */
6964 if (idx
< I40E_MAX_PF_UDP_OFFLOAD_PORTS
) {
6965 netdev_info(netdev
, "Port %d already offloaded\n", ntohs(port
));
6969 /* Now check if there is space to add the new port */
6970 next_idx
= i40e_get_vxlan_port_idx(pf
, 0);
6972 if (next_idx
== I40E_MAX_PF_UDP_OFFLOAD_PORTS
) {
6973 netdev_info(netdev
, "Maximum number of UDP ports reached, not adding port %d\n",
6978 /* New port: add it and mark its index in the bitmap */
6979 pf
->vxlan_ports
[next_idx
] = port
;
6980 pf
->pending_vxlan_bitmap
|= (1 << next_idx
);
6982 pf
->flags
|= I40E_FLAG_VXLAN_FILTER_SYNC
;
6986 * i40e_del_vxlan_port - Get notifications about VXLAN ports that go away
6987 * @netdev: This physical port's netdev
6988 * @sa_family: Socket Family that VXLAN is notifying us about
6989 * @port: UDP port number that VXLAN stopped listening to
6991 static void i40e_del_vxlan_port(struct net_device
*netdev
,
6992 sa_family_t sa_family
, __be16 port
)
6994 struct i40e_netdev_priv
*np
= netdev_priv(netdev
);
6995 struct i40e_vsi
*vsi
= np
->vsi
;
6996 struct i40e_pf
*pf
= vsi
->back
;
6999 if (sa_family
== AF_INET6
)
7002 idx
= i40e_get_vxlan_port_idx(pf
, port
);
7004 /* Check if port already exists */
7005 if (idx
< I40E_MAX_PF_UDP_OFFLOAD_PORTS
) {
7006 /* if port exists, set it to 0 (mark for deletion)
7007 * and make it pending
7009 pf
->vxlan_ports
[idx
] = 0;
7011 pf
->pending_vxlan_bitmap
|= (1 << idx
);
7013 pf
->flags
|= I40E_FLAG_VXLAN_FILTER_SYNC
;
7015 netdev_warn(netdev
, "Port %d was not found, not deleting\n",
7022 #ifdef USE_CONST_DEV_UC_CHAR
7023 static int i40e_ndo_fdb_add(struct ndmsg
*ndm
, struct nlattr
*tb
[],
7024 struct net_device
*dev
,
7025 const unsigned char *addr
,
7028 static int i40e_ndo_fdb_add(struct ndmsg
*ndm
,
7029 struct net_device
*dev
,
7030 unsigned char *addr
,
7034 struct i40e_netdev_priv
*np
= netdev_priv(dev
);
7035 struct i40e_pf
*pf
= np
->vsi
->back
;
7038 if (!(pf
->flags
& I40E_FLAG_SRIOV_ENABLED
))
7041 /* Hardware does not support aging addresses so if a
7042 * ndm_state is given only allow permanent addresses
7044 if (ndm
->ndm_state
&& !(ndm
->ndm_state
& NUD_PERMANENT
)) {
7045 netdev_info(dev
, "FDB only supports static addresses\n");
7049 if (is_unicast_ether_addr(addr
) || is_link_local_ether_addr(addr
))
7050 err
= dev_uc_add_excl(dev
, addr
);
7051 else if (is_multicast_ether_addr(addr
))
7052 err
= dev_mc_add_excl(dev
, addr
);
7056 /* Only return duplicate errors if NLM_F_EXCL is set */
7057 if (err
== -EEXIST
&& !(flags
& NLM_F_EXCL
))
7063 #ifndef USE_DEFAULT_FDB_DEL_DUMP
7064 #ifdef USE_CONST_DEV_UC_CHAR
7065 static int i40e_ndo_fdb_del(struct ndmsg
*ndm
,
7066 struct net_device
*dev
,
7067 const unsigned char *addr
)
7069 static int i40e_ndo_fdb_del(struct ndmsg
*ndm
,
7070 struct net_device
*dev
,
7071 unsigned char *addr
)
7074 struct i40e_netdev_priv
*np
= netdev_priv(dev
);
7075 struct i40e_pf
*pf
= np
->vsi
->back
;
7076 int err
= -EOPNOTSUPP
;
7078 if (ndm
->ndm_state
& NUD_PERMANENT
) {
7079 netdev_info(dev
, "FDB only supports static addresses\n");
7083 if (pf
->flags
& I40E_FLAG_SRIOV_ENABLED
) {
7084 if (is_unicast_ether_addr(addr
))
7085 err
= dev_uc_del(dev
, addr
);
7086 else if (is_multicast_ether_addr(addr
))
7087 err
= dev_mc_del(dev
, addr
);
7095 static int i40e_ndo_fdb_dump(struct sk_buff
*skb
,
7096 struct netlink_callback
*cb
,
7097 struct net_device
*dev
,
7098 struct net_device
*filter_dev
,
7101 struct i40e_netdev_priv
*np
= netdev_priv(dev
);
7102 struct i40e_pf
*pf
= np
->vsi
->back
;
7104 if (pf
->flags
& I40E_FLAG_SRIOV_ENABLED
)
7105 idx
= ndo_dflt_fdb_dump(skb
, cb
, dev
, filter_dev
, idx
);
7110 #endif /* USE_DEFAULT_FDB_DEL_DUMP */
7111 #endif /* HAVE_FDB_OPS */
7112 static const struct net_device_ops i40e_netdev_ops
= {
7113 .ndo_open
= i40e_open
,
7114 .ndo_stop
= i40e_close
,
7115 .ndo_start_xmit
= i40e_lan_xmit_frame
,
7116 .ndo_get_stats64
= i40e_get_netdev_stats_struct
,
7117 .ndo_set_rx_mode
= i40e_set_rx_mode
,
7118 .ndo_validate_addr
= eth_validate_addr
,
7119 .ndo_set_mac_address
= i40e_set_mac
,
7120 .ndo_change_mtu
= i40e_change_mtu
,
7121 .ndo_do_ioctl
= i40e_ioctl
,
7122 .ndo_tx_timeout
= i40e_tx_timeout
,
7123 .ndo_vlan_rx_add_vid
= i40e_vlan_rx_add_vid
,
7124 .ndo_vlan_rx_kill_vid
= i40e_vlan_rx_kill_vid
,
7125 #ifdef CONFIG_NET_POLL_CONTROLLER
7126 .ndo_poll_controller
= i40e_netpoll
,
7128 .ndo_setup_tc
= i40e_setup_tc
,
7129 .ndo_set_features
= i40e_set_features
,
7130 .ndo_set_vf_mac
= i40e_ndo_set_vf_mac
,
7131 .ndo_set_vf_vlan
= i40e_ndo_set_vf_port_vlan
,
7132 .ndo_set_vf_rate
= i40e_ndo_set_vf_bw
,
7133 .ndo_get_vf_config
= i40e_ndo_get_vf_config
,
7134 .ndo_set_vf_link_state
= i40e_ndo_set_vf_link_state
,
7135 .ndo_set_vf_spoofchk
= i40e_ndo_set_vf_spoofck
,
7136 #ifdef CONFIG_I40E_VXLAN
7137 .ndo_add_vxlan_port
= i40e_add_vxlan_port
,
7138 .ndo_del_vxlan_port
= i40e_del_vxlan_port
,
7141 .ndo_fdb_add
= i40e_ndo_fdb_add
,
7142 #ifndef USE_DEFAULT_FDB_DEL_DUMP
7143 .ndo_fdb_del
= i40e_ndo_fdb_del
,
7144 .ndo_fdb_dump
= i40e_ndo_fdb_dump
,
7150 * i40e_config_netdev - Setup the netdev flags
7151 * @vsi: the VSI being configured
7153 * Returns 0 on success, negative value on failure
7155 static int i40e_config_netdev(struct i40e_vsi
*vsi
)
7157 u8 brdcast
[ETH_ALEN
] = {0xff, 0xff, 0xff, 0xff, 0xff, 0xff};
7158 struct i40e_pf
*pf
= vsi
->back
;
7159 struct i40e_hw
*hw
= &pf
->hw
;
7160 struct i40e_netdev_priv
*np
;
7161 struct net_device
*netdev
;
7162 u8 mac_addr
[ETH_ALEN
];
7165 etherdev_size
= sizeof(struct i40e_netdev_priv
);
7166 netdev
= alloc_etherdev_mq(etherdev_size
, vsi
->alloc_queue_pairs
);
7170 vsi
->netdev
= netdev
;
7171 np
= netdev_priv(netdev
);
7174 netdev
->hw_enc_features
|= NETIF_F_IP_CSUM
|
7175 NETIF_F_GSO_UDP_TUNNEL
|
7178 netdev
->features
= NETIF_F_SG
|
7182 NETIF_F_GSO_UDP_TUNNEL
|
7183 NETIF_F_HW_VLAN_CTAG_TX
|
7184 NETIF_F_HW_VLAN_CTAG_RX
|
7185 NETIF_F_HW_VLAN_CTAG_FILTER
|
7194 if (!(pf
->flags
& I40E_FLAG_MFP_ENABLED
))
7195 netdev
->features
|= NETIF_F_NTUPLE
;
7197 /* copy netdev features into list of user selectable features */
7198 netdev
->hw_features
|= netdev
->features
;
7200 if (vsi
->type
== I40E_VSI_MAIN
) {
7201 SET_NETDEV_DEV(netdev
, &pf
->pdev
->dev
);
7202 ether_addr_copy(mac_addr
, hw
->mac
.perm_addr
);
7203 /* The following two steps are necessary to prevent reception
7204 * of tagged packets - by default the NVM loads a MAC-VLAN
7205 * filter that will accept any tagged packet. This is to
7206 * prevent that during normal operations until a specific
7207 * VLAN tag filter has been set.
7209 i40e_rm_default_mac_filter(vsi
, mac_addr
);
7210 i40e_add_filter(vsi
, mac_addr
, I40E_VLAN_ANY
, false, true);
7212 /* relate the VSI_VMDQ name to the VSI_MAIN name */
7213 snprintf(netdev
->name
, IFNAMSIZ
, "%sv%%d",
7214 pf
->vsi
[pf
->lan_vsi
]->netdev
->name
);
7215 random_ether_addr(mac_addr
);
7216 i40e_add_filter(vsi
, mac_addr
, I40E_VLAN_ANY
, false, false);
7218 i40e_add_filter(vsi
, brdcast
, I40E_VLAN_ANY
, false, false);
7220 ether_addr_copy(netdev
->dev_addr
, mac_addr
);
7221 ether_addr_copy(netdev
->perm_addr
, mac_addr
);
7222 /* vlan gets same features (except vlan offload)
7223 * after any tweaks for specific VSI types
7225 netdev
->vlan_features
= netdev
->features
& ~(NETIF_F_HW_VLAN_CTAG_TX
|
7226 NETIF_F_HW_VLAN_CTAG_RX
|
7227 NETIF_F_HW_VLAN_CTAG_FILTER
);
7228 netdev
->priv_flags
|= IFF_UNICAST_FLT
;
7229 netdev
->priv_flags
|= IFF_SUPP_NOFCS
;
7230 /* Setup netdev TC information */
7231 i40e_vsi_config_netdev_tc(vsi
, vsi
->tc_config
.enabled_tc
);
7233 netdev
->netdev_ops
= &i40e_netdev_ops
;
7234 netdev
->watchdog_timeo
= 5 * HZ
;
7235 i40e_set_ethtool_ops(netdev
);
7241 * i40e_vsi_delete - Delete a VSI from the switch
7242 * @vsi: the VSI being removed
7244 * Returns 0 on success, negative value on failure
7246 static void i40e_vsi_delete(struct i40e_vsi
*vsi
)
7248 /* remove default VSI is not allowed */
7249 if (vsi
== vsi
->back
->vsi
[vsi
->back
->lan_vsi
])
7252 i40e_aq_delete_element(&vsi
->back
->hw
, vsi
->seid
, NULL
);
7256 * i40e_add_vsi - Add a VSI to the switch
7257 * @vsi: the VSI being configured
7259 * This initializes a VSI context depending on the VSI type to be added and
7260 * passes it down to the add_vsi aq command.
7262 static int i40e_add_vsi(struct i40e_vsi
*vsi
)
7265 struct i40e_mac_filter
*f
, *ftmp
;
7266 struct i40e_pf
*pf
= vsi
->back
;
7267 struct i40e_hw
*hw
= &pf
->hw
;
7268 struct i40e_vsi_context ctxt
;
7269 u8 enabled_tc
= 0x1; /* TC0 enabled */
7272 memset(&ctxt
, 0, sizeof(ctxt
));
7273 switch (vsi
->type
) {
7275 /* The PF's main VSI is already setup as part of the
7276 * device initialization, so we'll not bother with
7277 * the add_vsi call, but we will retrieve the current
7280 ctxt
.seid
= pf
->main_vsi_seid
;
7281 ctxt
.pf_num
= pf
->hw
.pf_id
;
7283 ret
= i40e_aq_get_vsi_params(&pf
->hw
, &ctxt
, NULL
);
7284 ctxt
.flags
= I40E_AQ_VSI_TYPE_PF
;
7286 dev_info(&pf
->pdev
->dev
,
7287 "couldn't get pf vsi config, err %d, aq_err %d\n",
7288 ret
, pf
->hw
.aq
.asq_last_status
);
7291 memcpy(&vsi
->info
, &ctxt
.info
, sizeof(ctxt
.info
));
7292 vsi
->info
.valid_sections
= 0;
7294 vsi
->seid
= ctxt
.seid
;
7295 vsi
->id
= ctxt
.vsi_number
;
7297 enabled_tc
= i40e_pf_get_tc_map(pf
);
7299 /* MFP mode setup queue map and update VSI */
7300 if (pf
->flags
& I40E_FLAG_MFP_ENABLED
) {
7301 memset(&ctxt
, 0, sizeof(ctxt
));
7302 ctxt
.seid
= pf
->main_vsi_seid
;
7303 ctxt
.pf_num
= pf
->hw
.pf_id
;
7305 i40e_vsi_setup_queue_map(vsi
, &ctxt
, enabled_tc
, false);
7306 ret
= i40e_aq_update_vsi_params(hw
, &ctxt
, NULL
);
7308 dev_info(&pf
->pdev
->dev
,
7309 "update vsi failed, aq_err=%d\n",
7310 pf
->hw
.aq
.asq_last_status
);
7314 /* update the local VSI info queue map */
7315 i40e_vsi_update_queue_map(vsi
, &ctxt
);
7316 vsi
->info
.valid_sections
= 0;
7318 /* Default/Main VSI is only enabled for TC0
7319 * reconfigure it to enable all TCs that are
7320 * available on the port in SFP mode.
7322 ret
= i40e_vsi_config_tc(vsi
, enabled_tc
);
7324 dev_info(&pf
->pdev
->dev
,
7325 "failed to configure TCs for main VSI tc_map 0x%08x, err %d, aq_err %d\n",
7327 pf
->hw
.aq
.asq_last_status
);
7334 ctxt
.pf_num
= hw
->pf_id
;
7336 ctxt
.uplink_seid
= vsi
->uplink_seid
;
7337 ctxt
.connection_type
= 0x1; /* regular data port */
7338 ctxt
.flags
= I40E_AQ_VSI_TYPE_PF
;
7339 i40e_vsi_setup_queue_map(vsi
, &ctxt
, enabled_tc
, true);
7342 case I40E_VSI_VMDQ2
:
7343 ctxt
.pf_num
= hw
->pf_id
;
7345 ctxt
.uplink_seid
= vsi
->uplink_seid
;
7346 ctxt
.connection_type
= 0x1; /* regular data port */
7347 ctxt
.flags
= I40E_AQ_VSI_TYPE_VMDQ2
;
7349 ctxt
.info
.valid_sections
|= cpu_to_le16(I40E_AQ_VSI_PROP_SWITCH_VALID
);
7351 /* This VSI is connected to VEB so the switch_id
7352 * should be set to zero by default.
7354 ctxt
.info
.switch_id
= 0;
7355 ctxt
.info
.switch_id
|= cpu_to_le16(I40E_AQ_VSI_SW_ID_FLAG_LOCAL_LB
);
7356 ctxt
.info
.switch_id
|= cpu_to_le16(I40E_AQ_VSI_SW_ID_FLAG_ALLOW_LB
);
7358 /* Setup the VSI tx/rx queue map for TC0 only for now */
7359 i40e_vsi_setup_queue_map(vsi
, &ctxt
, enabled_tc
, true);
7362 case I40E_VSI_SRIOV
:
7363 ctxt
.pf_num
= hw
->pf_id
;
7364 ctxt
.vf_num
= vsi
->vf_id
+ hw
->func_caps
.vf_base_id
;
7365 ctxt
.uplink_seid
= vsi
->uplink_seid
;
7366 ctxt
.connection_type
= 0x1; /* regular data port */
7367 ctxt
.flags
= I40E_AQ_VSI_TYPE_VF
;
7369 ctxt
.info
.valid_sections
|= cpu_to_le16(I40E_AQ_VSI_PROP_SWITCH_VALID
);
7371 /* This VSI is connected to VEB so the switch_id
7372 * should be set to zero by default.
7374 ctxt
.info
.switch_id
= cpu_to_le16(I40E_AQ_VSI_SW_ID_FLAG_ALLOW_LB
);
7376 ctxt
.info
.valid_sections
|= cpu_to_le16(I40E_AQ_VSI_PROP_VLAN_VALID
);
7377 ctxt
.info
.port_vlan_flags
|= I40E_AQ_VSI_PVLAN_MODE_ALL
;
7378 if (pf
->vf
[vsi
->vf_id
].spoofchk
) {
7379 ctxt
.info
.valid_sections
|=
7380 cpu_to_le16(I40E_AQ_VSI_PROP_SECURITY_VALID
);
7381 ctxt
.info
.sec_flags
|=
7382 (I40E_AQ_VSI_SEC_FLAG_ENABLE_VLAN_CHK
|
7383 I40E_AQ_VSI_SEC_FLAG_ENABLE_MAC_CHK
);
7385 /* Setup the VSI tx/rx queue map for TC0 only for now */
7386 i40e_vsi_setup_queue_map(vsi
, &ctxt
, enabled_tc
, true);
7393 if (vsi
->type
!= I40E_VSI_MAIN
) {
7394 ret
= i40e_aq_add_vsi(hw
, &ctxt
, NULL
);
7396 dev_info(&vsi
->back
->pdev
->dev
,
7397 "add vsi failed, aq_err=%d\n",
7398 vsi
->back
->hw
.aq
.asq_last_status
);
7402 memcpy(&vsi
->info
, &ctxt
.info
, sizeof(ctxt
.info
));
7403 vsi
->info
.valid_sections
= 0;
7404 vsi
->seid
= ctxt
.seid
;
7405 vsi
->id
= ctxt
.vsi_number
;
7408 /* If macvlan filters already exist, force them to get loaded */
7409 list_for_each_entry_safe(f
, ftmp
, &vsi
->mac_filter_list
, list
) {
7413 if (f
->is_laa
&& vsi
->type
== I40E_VSI_MAIN
) {
7414 i40e_aq_mac_address_write(&vsi
->back
->hw
,
7415 I40E_AQC_WRITE_TYPE_LAA_WOL
,
7420 vsi
->flags
|= I40E_VSI_FLAG_FILTER_CHANGED
;
7421 pf
->flags
|= I40E_FLAG_FILTER_SYNC
;
7424 /* Update VSI BW information */
7425 ret
= i40e_vsi_get_bw_info(vsi
);
7427 dev_info(&pf
->pdev
->dev
,
7428 "couldn't get vsi bw info, err %d, aq_err %d\n",
7429 ret
, pf
->hw
.aq
.asq_last_status
);
7430 /* VSI is already added so not tearing that up */
7439 * i40e_vsi_release - Delete a VSI and free its resources
7440 * @vsi: the VSI being removed
7442 * Returns 0 on success or < 0 on error
7444 int i40e_vsi_release(struct i40e_vsi
*vsi
)
7446 struct i40e_mac_filter
*f
, *ftmp
;
7447 struct i40e_veb
*veb
= NULL
;
7454 /* release of a VEB-owner or last VSI is not allowed */
7455 if (vsi
->flags
& I40E_VSI_FLAG_VEB_OWNER
) {
7456 dev_info(&pf
->pdev
->dev
, "VSI %d has existing VEB %d\n",
7457 vsi
->seid
, vsi
->uplink_seid
);
7460 if (vsi
== pf
->vsi
[pf
->lan_vsi
] &&
7461 !test_bit(__I40E_DOWN
, &pf
->state
)) {
7462 dev_info(&pf
->pdev
->dev
, "Can't remove PF VSI\n");
7466 uplink_seid
= vsi
->uplink_seid
;
7467 if (vsi
->type
!= I40E_VSI_SRIOV
) {
7468 if (vsi
->netdev_registered
) {
7469 vsi
->netdev_registered
= false;
7471 /* results in a call to i40e_close() */
7472 unregister_netdev(vsi
->netdev
);
7475 i40e_vsi_close(vsi
);
7477 i40e_vsi_disable_irq(vsi
);
7480 list_for_each_entry_safe(f
, ftmp
, &vsi
->mac_filter_list
, list
)
7481 i40e_del_filter(vsi
, f
->macaddr
, f
->vlan
,
7482 f
->is_vf
, f
->is_netdev
);
7483 i40e_sync_vsi_filters(vsi
);
7485 i40e_vsi_delete(vsi
);
7486 i40e_vsi_free_q_vectors(vsi
);
7488 free_netdev(vsi
->netdev
);
7491 i40e_vsi_clear_rings(vsi
);
7492 i40e_vsi_clear(vsi
);
7494 /* If this was the last thing on the VEB, except for the
7495 * controlling VSI, remove the VEB, which puts the controlling
7496 * VSI onto the next level down in the switch.
7498 * Well, okay, there's one more exception here: don't remove
7499 * the orphan VEBs yet. We'll wait for an explicit remove request
7500 * from up the network stack.
7502 for (n
= 0, i
= 0; i
< pf
->num_alloc_vsi
; i
++) {
7504 pf
->vsi
[i
]->uplink_seid
== uplink_seid
&&
7505 (pf
->vsi
[i
]->flags
& I40E_VSI_FLAG_VEB_OWNER
) == 0) {
7506 n
++; /* count the VSIs */
7509 for (i
= 0; i
< I40E_MAX_VEB
; i
++) {
7512 if (pf
->veb
[i
]->uplink_seid
== uplink_seid
)
7513 n
++; /* count the VEBs */
7514 if (pf
->veb
[i
]->seid
== uplink_seid
)
7517 if (n
== 0 && veb
&& veb
->uplink_seid
!= 0)
7518 i40e_veb_release(veb
);
7524 * i40e_vsi_setup_vectors - Set up the q_vectors for the given VSI
7525 * @vsi: ptr to the VSI
7527 * This should only be called after i40e_vsi_mem_alloc() which allocates the
7528 * corresponding SW VSI structure and initializes num_queue_pairs for the
7529 * newly allocated VSI.
7531 * Returns 0 on success or negative on failure
7533 static int i40e_vsi_setup_vectors(struct i40e_vsi
*vsi
)
7536 struct i40e_pf
*pf
= vsi
->back
;
7538 if (vsi
->q_vectors
[0]) {
7539 dev_info(&pf
->pdev
->dev
, "VSI %d has existing q_vectors\n",
7544 if (vsi
->base_vector
) {
7545 dev_info(&pf
->pdev
->dev
, "VSI %d has non-zero base vector %d\n",
7546 vsi
->seid
, vsi
->base_vector
);
7550 ret
= i40e_vsi_alloc_q_vectors(vsi
);
7552 dev_info(&pf
->pdev
->dev
,
7553 "failed to allocate %d q_vector for VSI %d, ret=%d\n",
7554 vsi
->num_q_vectors
, vsi
->seid
, ret
);
7555 vsi
->num_q_vectors
= 0;
7556 goto vector_setup_out
;
7559 if (vsi
->num_q_vectors
)
7560 vsi
->base_vector
= i40e_get_lump(pf
, pf
->irq_pile
,
7561 vsi
->num_q_vectors
, vsi
->idx
);
7562 if (vsi
->base_vector
< 0) {
7563 dev_info(&pf
->pdev
->dev
,
7564 "failed to get queue tracking for VSI %d, err=%d\n",
7565 vsi
->seid
, vsi
->base_vector
);
7566 i40e_vsi_free_q_vectors(vsi
);
7568 goto vector_setup_out
;
7576 * i40e_vsi_reinit_setup - return and reallocate resources for a VSI
7577 * @vsi: pointer to the vsi.
7579 * This re-allocates a vsi's queue resources.
7581 * Returns pointer to the successfully allocated and configured VSI sw struct
7582 * on success, otherwise returns NULL on failure.
7584 static struct i40e_vsi
*i40e_vsi_reinit_setup(struct i40e_vsi
*vsi
)
7586 struct i40e_pf
*pf
= vsi
->back
;
7590 i40e_put_lump(pf
->qp_pile
, vsi
->base_queue
, vsi
->idx
);
7591 i40e_vsi_clear_rings(vsi
);
7593 i40e_vsi_free_arrays(vsi
, false);
7594 i40e_set_num_rings_in_vsi(vsi
);
7595 ret
= i40e_vsi_alloc_arrays(vsi
, false);
7599 ret
= i40e_get_lump(pf
, pf
->qp_pile
, vsi
->alloc_queue_pairs
, vsi
->idx
);
7601 dev_info(&pf
->pdev
->dev
, "VSI %d get_lump failed %d\n",
7605 vsi
->base_queue
= ret
;
7607 /* Update the FW view of the VSI. Force a reset of TC and queue
7608 * layout configurations.
7610 enabled_tc
= pf
->vsi
[pf
->lan_vsi
]->tc_config
.enabled_tc
;
7611 pf
->vsi
[pf
->lan_vsi
]->tc_config
.enabled_tc
= 0;
7612 pf
->vsi
[pf
->lan_vsi
]->seid
= pf
->main_vsi_seid
;
7613 i40e_vsi_config_tc(pf
->vsi
[pf
->lan_vsi
], enabled_tc
);
7615 /* assign it some queues */
7616 ret
= i40e_alloc_rings(vsi
);
7620 /* map all of the rings to the q_vectors */
7621 i40e_vsi_map_rings_to_vectors(vsi
);
7625 i40e_vsi_free_q_vectors(vsi
);
7626 if (vsi
->netdev_registered
) {
7627 vsi
->netdev_registered
= false;
7628 unregister_netdev(vsi
->netdev
);
7629 free_netdev(vsi
->netdev
);
7632 i40e_aq_delete_element(&pf
->hw
, vsi
->seid
, NULL
);
7634 i40e_vsi_clear(vsi
);
7639 * i40e_vsi_setup - Set up a VSI by a given type
7640 * @pf: board private structure
7642 * @uplink_seid: the switch element to link to
7643 * @param1: usage depends upon VSI type. For VF types, indicates VF id
7645 * This allocates the sw VSI structure and its queue resources, then add a VSI
7646 * to the identified VEB.
7648 * Returns pointer to the successfully allocated and configure VSI sw struct on
7649 * success, otherwise returns NULL on failure.
7651 struct i40e_vsi
*i40e_vsi_setup(struct i40e_pf
*pf
, u8 type
,
7652 u16 uplink_seid
, u32 param1
)
7654 struct i40e_vsi
*vsi
= NULL
;
7655 struct i40e_veb
*veb
= NULL
;
7659 /* The requested uplink_seid must be either
7660 * - the PF's port seid
7661 * no VEB is needed because this is the PF
7662 * or this is a Flow Director special case VSI
7663 * - seid of an existing VEB
7664 * - seid of a VSI that owns an existing VEB
7665 * - seid of a VSI that doesn't own a VEB
7666 * a new VEB is created and the VSI becomes the owner
7667 * - seid of the PF VSI, which is what creates the first VEB
7668 * this is a special case of the previous
7670 * Find which uplink_seid we were given and create a new VEB if needed
7672 for (i
= 0; i
< I40E_MAX_VEB
; i
++) {
7673 if (pf
->veb
[i
] && pf
->veb
[i
]->seid
== uplink_seid
) {
7679 if (!veb
&& uplink_seid
!= pf
->mac_seid
) {
7681 for (i
= 0; i
< pf
->num_alloc_vsi
; i
++) {
7682 if (pf
->vsi
[i
] && pf
->vsi
[i
]->seid
== uplink_seid
) {
7688 dev_info(&pf
->pdev
->dev
, "no such uplink_seid %d\n",
7693 if (vsi
->uplink_seid
== pf
->mac_seid
)
7694 veb
= i40e_veb_setup(pf
, 0, pf
->mac_seid
, vsi
->seid
,
7695 vsi
->tc_config
.enabled_tc
);
7696 else if ((vsi
->flags
& I40E_VSI_FLAG_VEB_OWNER
) == 0)
7697 veb
= i40e_veb_setup(pf
, 0, vsi
->uplink_seid
, vsi
->seid
,
7698 vsi
->tc_config
.enabled_tc
);
7700 for (i
= 0; i
< I40E_MAX_VEB
&& !veb
; i
++) {
7701 if (pf
->veb
[i
] && pf
->veb
[i
]->seid
== vsi
->uplink_seid
)
7705 dev_info(&pf
->pdev
->dev
, "couldn't add VEB\n");
7709 vsi
->flags
|= I40E_VSI_FLAG_VEB_OWNER
;
7710 uplink_seid
= veb
->seid
;
7713 /* get vsi sw struct */
7714 v_idx
= i40e_vsi_mem_alloc(pf
, type
);
7717 vsi
= pf
->vsi
[v_idx
];
7721 vsi
->veb_idx
= (veb
? veb
->idx
: I40E_NO_VEB
);
7723 if (type
== I40E_VSI_MAIN
)
7724 pf
->lan_vsi
= v_idx
;
7725 else if (type
== I40E_VSI_SRIOV
)
7726 vsi
->vf_id
= param1
;
7727 /* assign it some queues */
7728 ret
= i40e_get_lump(pf
, pf
->qp_pile
, vsi
->alloc_queue_pairs
,
7731 dev_info(&pf
->pdev
->dev
, "VSI %d get_lump failed %d\n",
7735 vsi
->base_queue
= ret
;
7737 /* get a VSI from the hardware */
7738 vsi
->uplink_seid
= uplink_seid
;
7739 ret
= i40e_add_vsi(vsi
);
7743 switch (vsi
->type
) {
7744 /* setup the netdev if needed */
7746 case I40E_VSI_VMDQ2
:
7747 ret
= i40e_config_netdev(vsi
);
7750 ret
= register_netdev(vsi
->netdev
);
7753 vsi
->netdev_registered
= true;
7754 netif_carrier_off(vsi
->netdev
);
7755 #ifdef CONFIG_I40E_DCB
7756 /* Setup DCB netlink interface */
7757 i40e_dcbnl_setup(vsi
);
7758 #endif /* CONFIG_I40E_DCB */
7762 /* set up vectors and rings if needed */
7763 ret
= i40e_vsi_setup_vectors(vsi
);
7767 ret
= i40e_alloc_rings(vsi
);
7771 /* map all of the rings to the q_vectors */
7772 i40e_vsi_map_rings_to_vectors(vsi
);
7774 i40e_vsi_reset_stats(vsi
);
7778 /* no netdev or rings for the other VSI types */
7785 i40e_vsi_free_q_vectors(vsi
);
7787 if (vsi
->netdev_registered
) {
7788 vsi
->netdev_registered
= false;
7789 unregister_netdev(vsi
->netdev
);
7790 free_netdev(vsi
->netdev
);
7794 i40e_aq_delete_element(&pf
->hw
, vsi
->seid
, NULL
);
7796 i40e_vsi_clear(vsi
);
7802 * i40e_veb_get_bw_info - Query VEB BW information
7803 * @veb: the veb to query
7805 * Query the Tx scheduler BW configuration data for given VEB
7807 static int i40e_veb_get_bw_info(struct i40e_veb
*veb
)
7809 struct i40e_aqc_query_switching_comp_ets_config_resp ets_data
;
7810 struct i40e_aqc_query_switching_comp_bw_config_resp bw_data
;
7811 struct i40e_pf
*pf
= veb
->pf
;
7812 struct i40e_hw
*hw
= &pf
->hw
;
7817 ret
= i40e_aq_query_switch_comp_bw_config(hw
, veb
->seid
,
7820 dev_info(&pf
->pdev
->dev
,
7821 "query veb bw config failed, aq_err=%d\n",
7822 hw
->aq
.asq_last_status
);
7826 ret
= i40e_aq_query_switch_comp_ets_config(hw
, veb
->seid
,
7829 dev_info(&pf
->pdev
->dev
,
7830 "query veb bw ets config failed, aq_err=%d\n",
7831 hw
->aq
.asq_last_status
);
7835 veb
->bw_limit
= le16_to_cpu(ets_data
.port_bw_limit
);
7836 veb
->bw_max_quanta
= ets_data
.tc_bw_max
;
7837 veb
->is_abs_credits
= bw_data
.absolute_credits_enable
;
7838 tc_bw_max
= le16_to_cpu(bw_data
.tc_bw_max
[0]) |
7839 (le16_to_cpu(bw_data
.tc_bw_max
[1]) << 16);
7840 for (i
= 0; i
< I40E_MAX_TRAFFIC_CLASS
; i
++) {
7841 veb
->bw_tc_share_credits
[i
] = bw_data
.tc_bw_share_credits
[i
];
7842 veb
->bw_tc_limit_credits
[i
] =
7843 le16_to_cpu(bw_data
.tc_bw_limits
[i
]);
7844 veb
->bw_tc_max_quanta
[i
] = ((tc_bw_max
>> (i
*4)) & 0x7);
7852 * i40e_veb_mem_alloc - Allocates the next available struct veb in the PF
7853 * @pf: board private structure
7855 * On error: returns error code (negative)
7856 * On success: returns vsi index in PF (positive)
7858 static int i40e_veb_mem_alloc(struct i40e_pf
*pf
)
7861 struct i40e_veb
*veb
;
7864 /* Need to protect the allocation of switch elements at the PF level */
7865 mutex_lock(&pf
->switch_mutex
);
7867 /* VEB list may be fragmented if VEB creation/destruction has
7868 * been happening. We can afford to do a quick scan to look
7869 * for any free slots in the list.
7871 * find next empty veb slot, looping back around if necessary
7874 while ((i
< I40E_MAX_VEB
) && (pf
->veb
[i
] != NULL
))
7876 if (i
>= I40E_MAX_VEB
) {
7878 goto err_alloc_veb
; /* out of VEB slots! */
7881 veb
= kzalloc(sizeof(*veb
), GFP_KERNEL
);
7888 veb
->enabled_tc
= 1;
7893 mutex_unlock(&pf
->switch_mutex
);
7898 * i40e_switch_branch_release - Delete a branch of the switch tree
7899 * @branch: where to start deleting
7901 * This uses recursion to find the tips of the branch to be
7902 * removed, deleting until we get back to and can delete this VEB.
7904 static void i40e_switch_branch_release(struct i40e_veb
*branch
)
7906 struct i40e_pf
*pf
= branch
->pf
;
7907 u16 branch_seid
= branch
->seid
;
7908 u16 veb_idx
= branch
->idx
;
7911 /* release any VEBs on this VEB - RECURSION */
7912 for (i
= 0; i
< I40E_MAX_VEB
; i
++) {
7915 if (pf
->veb
[i
]->uplink_seid
== branch
->seid
)
7916 i40e_switch_branch_release(pf
->veb
[i
]);
7919 /* Release the VSIs on this VEB, but not the owner VSI.
7921 * NOTE: Removing the last VSI on a VEB has the SIDE EFFECT of removing
7922 * the VEB itself, so don't use (*branch) after this loop.
7924 for (i
= 0; i
< pf
->num_alloc_vsi
; i
++) {
7927 if (pf
->vsi
[i
]->uplink_seid
== branch_seid
&&
7928 (pf
->vsi
[i
]->flags
& I40E_VSI_FLAG_VEB_OWNER
) == 0) {
7929 i40e_vsi_release(pf
->vsi
[i
]);
7933 /* There's one corner case where the VEB might not have been
7934 * removed, so double check it here and remove it if needed.
7935 * This case happens if the veb was created from the debugfs
7936 * commands and no VSIs were added to it.
7938 if (pf
->veb
[veb_idx
])
7939 i40e_veb_release(pf
->veb
[veb_idx
]);
7943 * i40e_veb_clear - remove veb struct
7944 * @veb: the veb to remove
7946 static void i40e_veb_clear(struct i40e_veb
*veb
)
7952 struct i40e_pf
*pf
= veb
->pf
;
7954 mutex_lock(&pf
->switch_mutex
);
7955 if (pf
->veb
[veb
->idx
] == veb
)
7956 pf
->veb
[veb
->idx
] = NULL
;
7957 mutex_unlock(&pf
->switch_mutex
);
7964 * i40e_veb_release - Delete a VEB and free its resources
7965 * @veb: the VEB being removed
7967 void i40e_veb_release(struct i40e_veb
*veb
)
7969 struct i40e_vsi
*vsi
= NULL
;
7975 /* find the remaining VSI and check for extras */
7976 for (i
= 0; i
< pf
->num_alloc_vsi
; i
++) {
7977 if (pf
->vsi
[i
] && pf
->vsi
[i
]->uplink_seid
== veb
->seid
) {
7983 dev_info(&pf
->pdev
->dev
,
7984 "can't remove VEB %d with %d VSIs left\n",
7989 /* move the remaining VSI to uplink veb */
7990 vsi
->flags
&= ~I40E_VSI_FLAG_VEB_OWNER
;
7991 if (veb
->uplink_seid
) {
7992 vsi
->uplink_seid
= veb
->uplink_seid
;
7993 if (veb
->uplink_seid
== pf
->mac_seid
)
7994 vsi
->veb_idx
= I40E_NO_VEB
;
7996 vsi
->veb_idx
= veb
->veb_idx
;
7999 vsi
->uplink_seid
= pf
->vsi
[pf
->lan_vsi
]->uplink_seid
;
8000 vsi
->veb_idx
= pf
->vsi
[pf
->lan_vsi
]->veb_idx
;
8003 i40e_aq_delete_element(&pf
->hw
, veb
->seid
, NULL
);
8004 i40e_veb_clear(veb
);
8008 * i40e_add_veb - create the VEB in the switch
8009 * @veb: the VEB to be instantiated
8010 * @vsi: the controlling VSI
8012 static int i40e_add_veb(struct i40e_veb
*veb
, struct i40e_vsi
*vsi
)
8014 bool is_default
= false;
8015 bool is_cloud
= false;
8018 /* get a VEB from the hardware */
8019 ret
= i40e_aq_add_veb(&veb
->pf
->hw
, veb
->uplink_seid
, vsi
->seid
,
8020 veb
->enabled_tc
, is_default
,
8021 is_cloud
, &veb
->seid
, NULL
);
8023 dev_info(&veb
->pf
->pdev
->dev
,
8024 "couldn't add VEB, err %d, aq_err %d\n",
8025 ret
, veb
->pf
->hw
.aq
.asq_last_status
);
8029 /* get statistics counter */
8030 ret
= i40e_aq_get_veb_parameters(&veb
->pf
->hw
, veb
->seid
, NULL
, NULL
,
8031 &veb
->stats_idx
, NULL
, NULL
, NULL
);
8033 dev_info(&veb
->pf
->pdev
->dev
,
8034 "couldn't get VEB statistics idx, err %d, aq_err %d\n",
8035 ret
, veb
->pf
->hw
.aq
.asq_last_status
);
8038 ret
= i40e_veb_get_bw_info(veb
);
8040 dev_info(&veb
->pf
->pdev
->dev
,
8041 "couldn't get VEB bw info, err %d, aq_err %d\n",
8042 ret
, veb
->pf
->hw
.aq
.asq_last_status
);
8043 i40e_aq_delete_element(&veb
->pf
->hw
, veb
->seid
, NULL
);
8047 vsi
->uplink_seid
= veb
->seid
;
8048 vsi
->veb_idx
= veb
->idx
;
8049 vsi
->flags
|= I40E_VSI_FLAG_VEB_OWNER
;
8055 * i40e_veb_setup - Set up a VEB
8056 * @pf: board private structure
8057 * @flags: VEB setup flags
8058 * @uplink_seid: the switch element to link to
8059 * @vsi_seid: the initial VSI seid
8060 * @enabled_tc: Enabled TC bit-map
8062 * This allocates the sw VEB structure and links it into the switch
8063 * It is possible and legal for this to be a duplicate of an already
8064 * existing VEB. It is also possible for both uplink and vsi seids
8065 * to be zero, in order to create a floating VEB.
8067 * Returns pointer to the successfully allocated VEB sw struct on
8068 * success, otherwise returns NULL on failure.
8070 struct i40e_veb
*i40e_veb_setup(struct i40e_pf
*pf
, u16 flags
,
8071 u16 uplink_seid
, u16 vsi_seid
,
8074 struct i40e_veb
*veb
, *uplink_veb
= NULL
;
8075 int vsi_idx
, veb_idx
;
8078 /* if one seid is 0, the other must be 0 to create a floating relay */
8079 if ((uplink_seid
== 0 || vsi_seid
== 0) &&
8080 (uplink_seid
+ vsi_seid
!= 0)) {
8081 dev_info(&pf
->pdev
->dev
,
8082 "one, not both seid's are 0: uplink=%d vsi=%d\n",
8083 uplink_seid
, vsi_seid
);
8087 /* make sure there is such a vsi and uplink */
8088 for (vsi_idx
= 0; vsi_idx
< pf
->num_alloc_vsi
; vsi_idx
++)
8089 if (pf
->vsi
[vsi_idx
] && pf
->vsi
[vsi_idx
]->seid
== vsi_seid
)
8091 if (vsi_idx
>= pf
->num_alloc_vsi
&& vsi_seid
!= 0) {
8092 dev_info(&pf
->pdev
->dev
, "vsi seid %d not found\n",
8097 if (uplink_seid
&& uplink_seid
!= pf
->mac_seid
) {
8098 for (veb_idx
= 0; veb_idx
< I40E_MAX_VEB
; veb_idx
++) {
8099 if (pf
->veb
[veb_idx
] &&
8100 pf
->veb
[veb_idx
]->seid
== uplink_seid
) {
8101 uplink_veb
= pf
->veb
[veb_idx
];
8106 dev_info(&pf
->pdev
->dev
,
8107 "uplink seid %d not found\n", uplink_seid
);
8112 /* get veb sw struct */
8113 veb_idx
= i40e_veb_mem_alloc(pf
);
8116 veb
= pf
->veb
[veb_idx
];
8118 veb
->uplink_seid
= uplink_seid
;
8119 veb
->veb_idx
= (uplink_veb
? uplink_veb
->idx
: I40E_NO_VEB
);
8120 veb
->enabled_tc
= (enabled_tc
? enabled_tc
: 0x1);
8122 /* create the VEB in the switch */
8123 ret
= i40e_add_veb(veb
, pf
->vsi
[vsi_idx
]);
8126 if (vsi_idx
== pf
->lan_vsi
)
8127 pf
->lan_veb
= veb
->idx
;
8132 i40e_veb_clear(veb
);
8138 * i40e_setup_pf_switch_element - set pf vars based on switch type
8139 * @pf: board private structure
8140 * @ele: element we are building info from
8141 * @num_reported: total number of elements
8142 * @printconfig: should we print the contents
8144 * helper function to assist in extracting a few useful SEID values.
8146 static void i40e_setup_pf_switch_element(struct i40e_pf
*pf
,
8147 struct i40e_aqc_switch_config_element_resp
*ele
,
8148 u16 num_reported
, bool printconfig
)
8150 u16 downlink_seid
= le16_to_cpu(ele
->downlink_seid
);
8151 u16 uplink_seid
= le16_to_cpu(ele
->uplink_seid
);
8152 u8 element_type
= ele
->element_type
;
8153 u16 seid
= le16_to_cpu(ele
->seid
);
8156 dev_info(&pf
->pdev
->dev
,
8157 "type=%d seid=%d uplink=%d downlink=%d\n",
8158 element_type
, seid
, uplink_seid
, downlink_seid
);
8160 switch (element_type
) {
8161 case I40E_SWITCH_ELEMENT_TYPE_MAC
:
8162 pf
->mac_seid
= seid
;
8164 case I40E_SWITCH_ELEMENT_TYPE_VEB
:
8166 if (uplink_seid
!= pf
->mac_seid
)
8168 if (pf
->lan_veb
== I40E_NO_VEB
) {
8171 /* find existing or else empty VEB */
8172 for (v
= 0; v
< I40E_MAX_VEB
; v
++) {
8173 if (pf
->veb
[v
] && (pf
->veb
[v
]->seid
== seid
)) {
8178 if (pf
->lan_veb
== I40E_NO_VEB
) {
8179 v
= i40e_veb_mem_alloc(pf
);
8186 pf
->veb
[pf
->lan_veb
]->seid
= seid
;
8187 pf
->veb
[pf
->lan_veb
]->uplink_seid
= pf
->mac_seid
;
8188 pf
->veb
[pf
->lan_veb
]->pf
= pf
;
8189 pf
->veb
[pf
->lan_veb
]->veb_idx
= I40E_NO_VEB
;
8191 case I40E_SWITCH_ELEMENT_TYPE_VSI
:
8192 if (num_reported
!= 1)
8194 /* This is immediately after a reset so we can assume this is
8197 pf
->mac_seid
= uplink_seid
;
8198 pf
->pf_seid
= downlink_seid
;
8199 pf
->main_vsi_seid
= seid
;
8201 dev_info(&pf
->pdev
->dev
,
8202 "pf_seid=%d main_vsi_seid=%d\n",
8203 pf
->pf_seid
, pf
->main_vsi_seid
);
8205 case I40E_SWITCH_ELEMENT_TYPE_PF
:
8206 case I40E_SWITCH_ELEMENT_TYPE_VF
:
8207 case I40E_SWITCH_ELEMENT_TYPE_EMP
:
8208 case I40E_SWITCH_ELEMENT_TYPE_BMC
:
8209 case I40E_SWITCH_ELEMENT_TYPE_PE
:
8210 case I40E_SWITCH_ELEMENT_TYPE_PA
:
8211 /* ignore these for now */
8214 dev_info(&pf
->pdev
->dev
, "unknown element type=%d seid=%d\n",
8215 element_type
, seid
);
8221 * i40e_fetch_switch_configuration - Get switch config from firmware
8222 * @pf: board private structure
8223 * @printconfig: should we print the contents
8225 * Get the current switch configuration from the device and
8226 * extract a few useful SEID values.
8228 int i40e_fetch_switch_configuration(struct i40e_pf
*pf
, bool printconfig
)
8230 struct i40e_aqc_get_switch_config_resp
*sw_config
;
8236 aq_buf
= kzalloc(I40E_AQ_LARGE_BUF
, GFP_KERNEL
);
8240 sw_config
= (struct i40e_aqc_get_switch_config_resp
*)aq_buf
;
8242 u16 num_reported
, num_total
;
8244 ret
= i40e_aq_get_switch_config(&pf
->hw
, sw_config
,
8248 dev_info(&pf
->pdev
->dev
,
8249 "get switch config failed %d aq_err=%x\n",
8250 ret
, pf
->hw
.aq
.asq_last_status
);
8255 num_reported
= le16_to_cpu(sw_config
->header
.num_reported
);
8256 num_total
= le16_to_cpu(sw_config
->header
.num_total
);
8259 dev_info(&pf
->pdev
->dev
,
8260 "header: %d reported %d total\n",
8261 num_reported
, num_total
);
8263 for (i
= 0; i
< num_reported
; i
++) {
8264 struct i40e_aqc_switch_config_element_resp
*ele
=
8265 &sw_config
->element
[i
];
8267 i40e_setup_pf_switch_element(pf
, ele
, num_reported
,
8270 } while (next_seid
!= 0);
8277 * i40e_setup_pf_switch - Setup the HW switch on startup or after reset
8278 * @pf: board private structure
8279 * @reinit: if the Main VSI needs to re-initialized.
8281 * Returns 0 on success, negative value on failure
8283 static int i40e_setup_pf_switch(struct i40e_pf
*pf
, bool reinit
)
8287 /* find out what's out there already */
8288 ret
= i40e_fetch_switch_configuration(pf
, false);
8290 dev_info(&pf
->pdev
->dev
,
8291 "couldn't fetch switch config, err %d, aq_err %d\n",
8292 ret
, pf
->hw
.aq
.asq_last_status
);
8295 i40e_pf_reset_stats(pf
);
8297 /* first time setup */
8298 if (pf
->lan_vsi
== I40E_NO_VSI
|| reinit
) {
8299 struct i40e_vsi
*vsi
= NULL
;
8302 /* Set up the PF VSI associated with the PF's main VSI
8303 * that is already in the HW switch
8305 if (pf
->lan_veb
!= I40E_NO_VEB
&& pf
->veb
[pf
->lan_veb
])
8306 uplink_seid
= pf
->veb
[pf
->lan_veb
]->seid
;
8308 uplink_seid
= pf
->mac_seid
;
8309 if (pf
->lan_vsi
== I40E_NO_VSI
)
8310 vsi
= i40e_vsi_setup(pf
, I40E_VSI_MAIN
, uplink_seid
, 0);
8312 vsi
= i40e_vsi_reinit_setup(pf
->vsi
[pf
->lan_vsi
]);
8314 dev_info(&pf
->pdev
->dev
, "setup of MAIN VSI failed\n");
8315 i40e_fdir_teardown(pf
);
8319 /* force a reset of TC and queue layout configurations */
8320 u8 enabled_tc
= pf
->vsi
[pf
->lan_vsi
]->tc_config
.enabled_tc
;
8321 pf
->vsi
[pf
->lan_vsi
]->tc_config
.enabled_tc
= 0;
8322 pf
->vsi
[pf
->lan_vsi
]->seid
= pf
->main_vsi_seid
;
8323 i40e_vsi_config_tc(pf
->vsi
[pf
->lan_vsi
], enabled_tc
);
8325 i40e_vlan_stripping_disable(pf
->vsi
[pf
->lan_vsi
]);
8327 i40e_fdir_sb_setup(pf
);
8329 /* Setup static PF queue filter control settings */
8330 ret
= i40e_setup_pf_filter_control(pf
);
8332 dev_info(&pf
->pdev
->dev
, "setup_pf_filter_control failed: %d\n",
8334 /* Failure here should not stop continuing other steps */
8337 /* enable RSS in the HW, even for only one queue, as the stack can use
8340 if ((pf
->flags
& I40E_FLAG_RSS_ENABLED
))
8341 i40e_config_rss(pf
);
8343 /* fill in link information and enable LSE reporting */
8344 i40e_update_link_info(&pf
->hw
, true);
8345 i40e_link_event(pf
);
8347 /* Initialize user-specific link properties */
8348 pf
->fc_autoneg_status
= ((pf
->hw
.phy
.link_info
.an_info
&
8349 I40E_AQ_AN_COMPLETED
) ? true : false);
8357 * i40e_determine_queue_usage - Work out queue distribution
8358 * @pf: board private structure
8360 static void i40e_determine_queue_usage(struct i40e_pf
*pf
)
8364 pf
->num_lan_qps
= 0;
8366 /* Find the max queues to be put into basic use. We'll always be
8367 * using TC0, whether or not DCB is running, and TC0 will get the
8370 queues_left
= pf
->hw
.func_caps
.num_tx_qp
;
8372 if ((queues_left
== 1) ||
8373 !(pf
->flags
& I40E_FLAG_MSIX_ENABLED
)) {
8374 /* one qp for PF, no queues for anything else */
8376 pf
->rss_size
= pf
->num_lan_qps
= 1;
8378 /* make sure all the fancies are disabled */
8379 pf
->flags
&= ~(I40E_FLAG_RSS_ENABLED
|
8380 I40E_FLAG_FD_SB_ENABLED
|
8381 I40E_FLAG_FD_ATR_ENABLED
|
8382 I40E_FLAG_DCB_CAPABLE
|
8383 I40E_FLAG_SRIOV_ENABLED
|
8384 I40E_FLAG_VMDQ_ENABLED
);
8385 } else if (!(pf
->flags
& (I40E_FLAG_RSS_ENABLED
|
8386 I40E_FLAG_FD_SB_ENABLED
|
8387 I40E_FLAG_FD_ATR_ENABLED
|
8388 I40E_FLAG_DCB_CAPABLE
))) {
8390 pf
->rss_size
= pf
->num_lan_qps
= 1;
8391 queues_left
-= pf
->num_lan_qps
;
8393 pf
->flags
&= ~(I40E_FLAG_RSS_ENABLED
|
8394 I40E_FLAG_FD_SB_ENABLED
|
8395 I40E_FLAG_FD_ATR_ENABLED
|
8396 I40E_FLAG_DCB_ENABLED
|
8397 I40E_FLAG_VMDQ_ENABLED
);
8399 /* Not enough queues for all TCs */
8400 if ((pf
->flags
& I40E_FLAG_DCB_CAPABLE
) &&
8401 (queues_left
< I40E_MAX_TRAFFIC_CLASS
)) {
8402 pf
->flags
&= ~I40E_FLAG_DCB_CAPABLE
;
8403 dev_info(&pf
->pdev
->dev
, "not enough queues for DCB. DCB is disabled.\n");
8405 pf
->num_lan_qps
= pf
->rss_size_max
;
8406 queues_left
-= pf
->num_lan_qps
;
8409 if (pf
->flags
& I40E_FLAG_FD_SB_ENABLED
) {
8410 if (queues_left
> 1) {
8411 queues_left
-= 1; /* save 1 queue for FD */
8413 pf
->flags
&= ~I40E_FLAG_FD_SB_ENABLED
;
8414 dev_info(&pf
->pdev
->dev
, "not enough queues for Flow Director. Flow Director feature is disabled\n");
8418 if ((pf
->flags
& I40E_FLAG_SRIOV_ENABLED
) &&
8419 pf
->num_vf_qps
&& pf
->num_req_vfs
&& queues_left
) {
8420 pf
->num_req_vfs
= min_t(int, pf
->num_req_vfs
,
8421 (queues_left
/ pf
->num_vf_qps
));
8422 queues_left
-= (pf
->num_req_vfs
* pf
->num_vf_qps
);
8425 if ((pf
->flags
& I40E_FLAG_VMDQ_ENABLED
) &&
8426 pf
->num_vmdq_vsis
&& pf
->num_vmdq_qps
&& queues_left
) {
8427 pf
->num_vmdq_vsis
= min_t(int, pf
->num_vmdq_vsis
,
8428 (queues_left
/ pf
->num_vmdq_qps
));
8429 queues_left
-= (pf
->num_vmdq_vsis
* pf
->num_vmdq_qps
);
8432 pf
->queues_left
= queues_left
;
8436 * i40e_setup_pf_filter_control - Setup PF static filter control
8437 * @pf: PF to be setup
8439 * i40e_setup_pf_filter_control sets up a pf's initial filter control
8440 * settings. If PE/FCoE are enabled then it will also set the per PF
8441 * based filter sizes required for them. It also enables Flow director,
8442 * ethertype and macvlan type filter settings for the pf.
8444 * Returns 0 on success, negative on failure
8446 static int i40e_setup_pf_filter_control(struct i40e_pf
*pf
)
8448 struct i40e_filter_control_settings
*settings
= &pf
->filter_settings
;
8450 settings
->hash_lut_size
= I40E_HASH_LUT_SIZE_128
;
8452 /* Flow Director is enabled */
8453 if (pf
->flags
& (I40E_FLAG_FD_SB_ENABLED
| I40E_FLAG_FD_ATR_ENABLED
))
8454 settings
->enable_fdir
= true;
8456 /* Ethtype and MACVLAN filters enabled for PF */
8457 settings
->enable_ethtype
= true;
8458 settings
->enable_macvlan
= true;
8460 if (i40e_set_filter_control(&pf
->hw
, settings
))
8466 #define INFO_STRING_LEN 255
8467 static void i40e_print_features(struct i40e_pf
*pf
)
8469 struct i40e_hw
*hw
= &pf
->hw
;
8472 string
= kzalloc(INFO_STRING_LEN
, GFP_KERNEL
);
8474 dev_err(&pf
->pdev
->dev
, "Features string allocation failed\n");
8480 buf
+= sprintf(string
, "Features: PF-id[%d] ", hw
->pf_id
);
8481 #ifdef CONFIG_PCI_IOV
8482 buf
+= sprintf(buf
, "VFs: %d ", pf
->num_req_vfs
);
8484 buf
+= sprintf(buf
, "VSIs: %d QP: %d ", pf
->hw
.func_caps
.num_vsis
,
8485 pf
->vsi
[pf
->lan_vsi
]->num_queue_pairs
);
8487 if (pf
->flags
& I40E_FLAG_RSS_ENABLED
)
8488 buf
+= sprintf(buf
, "RSS ");
8489 if (pf
->flags
& I40E_FLAG_FD_ATR_ENABLED
)
8490 buf
+= sprintf(buf
, "FD_ATR ");
8491 if (pf
->flags
& I40E_FLAG_FD_SB_ENABLED
) {
8492 buf
+= sprintf(buf
, "FD_SB ");
8493 buf
+= sprintf(buf
, "NTUPLE ");
8495 if (pf
->flags
& I40E_FLAG_DCB_CAPABLE
)
8496 buf
+= sprintf(buf
, "DCB ");
8497 if (pf
->flags
& I40E_FLAG_PTP
)
8498 buf
+= sprintf(buf
, "PTP ");
8500 BUG_ON(buf
> (string
+ INFO_STRING_LEN
));
8501 dev_info(&pf
->pdev
->dev
, "%s\n", string
);
8506 * i40e_probe - Device initialization routine
8507 * @pdev: PCI device information struct
8508 * @ent: entry in i40e_pci_tbl
8510 * i40e_probe initializes a pf identified by a pci_dev structure.
8511 * The OS initialization, configuring of the pf private structure,
8512 * and a hardware reset occur.
8514 * Returns 0 on success, negative on failure
8516 static int i40e_probe(struct pci_dev
*pdev
, const struct pci_device_id
*ent
)
8520 static u16 pfs_found
;
8526 err
= pci_enable_device_mem(pdev
);
8530 /* set up for high or low dma */
8531 err
= dma_set_mask_and_coherent(&pdev
->dev
, DMA_BIT_MASK(64));
8533 err
= dma_set_mask_and_coherent(&pdev
->dev
, DMA_BIT_MASK(32));
8536 "DMA configuration failed: 0x%x\n", err
);
8541 /* set up pci connections */
8542 err
= pci_request_selected_regions(pdev
, pci_select_bars(pdev
,
8543 IORESOURCE_MEM
), i40e_driver_name
);
8545 dev_info(&pdev
->dev
,
8546 "pci_request_selected_regions failed %d\n", err
);
8550 pci_enable_pcie_error_reporting(pdev
);
8551 pci_set_master(pdev
);
8553 /* Now that we have a PCI connection, we need to do the
8554 * low level device setup. This is primarily setting up
8555 * the Admin Queue structures and then querying for the
8556 * device's current profile information.
8558 pf
= kzalloc(sizeof(*pf
), GFP_KERNEL
);
8565 set_bit(__I40E_DOWN
, &pf
->state
);
8569 hw
->hw_addr
= ioremap(pci_resource_start(pdev
, 0),
8570 pci_resource_len(pdev
, 0));
8573 dev_info(&pdev
->dev
, "ioremap(0x%04x, 0x%04x) failed: 0x%x\n",
8574 (unsigned int)pci_resource_start(pdev
, 0),
8575 (unsigned int)pci_resource_len(pdev
, 0), err
);
8578 hw
->vendor_id
= pdev
->vendor
;
8579 hw
->device_id
= pdev
->device
;
8580 pci_read_config_byte(pdev
, PCI_REVISION_ID
, &hw
->revision_id
);
8581 hw
->subsystem_vendor_id
= pdev
->subsystem_vendor
;
8582 hw
->subsystem_device_id
= pdev
->subsystem_device
;
8583 hw
->bus
.device
= PCI_SLOT(pdev
->devfn
);
8584 hw
->bus
.func
= PCI_FUNC(pdev
->devfn
);
8585 pf
->instance
= pfs_found
;
8587 /* do a special CORER for clearing PXE mode once at init */
8588 if (hw
->revision_id
== 0 &&
8589 (rd32(hw
, I40E_GLLAN_RCTL_0
) & I40E_GLLAN_RCTL_0_PXE_MODE_MASK
)) {
8590 wr32(hw
, I40E_GLGEN_RTRIG
, I40E_GLGEN_RTRIG_CORER_MASK
);
8595 i40e_clear_pxe_mode(hw
);
8598 /* Reset here to make sure all is clean and to define PF 'n' */
8600 err
= i40e_pf_reset(hw
);
8602 dev_info(&pdev
->dev
, "Initial pf_reset failed: %d\n", err
);
8607 hw
->aq
.num_arq_entries
= I40E_AQ_LEN
;
8608 hw
->aq
.num_asq_entries
= I40E_AQ_LEN
;
8609 hw
->aq
.arq_buf_size
= I40E_MAX_AQ_BUF_SIZE
;
8610 hw
->aq
.asq_buf_size
= I40E_MAX_AQ_BUF_SIZE
;
8611 pf
->adminq_work_limit
= I40E_AQ_WORK_LIMIT
;
8612 snprintf(pf
->misc_int_name
, sizeof(pf
->misc_int_name
) - 1,
8614 dev_driver_string(&pf
->pdev
->dev
), pf
->hw
.pf_id
);
8616 err
= i40e_init_shared_code(hw
);
8618 dev_info(&pdev
->dev
, "init_shared_code failed: %d\n", err
);
8622 /* set up a default setting for link flow control */
8623 pf
->hw
.fc
.requested_mode
= I40E_FC_NONE
;
8625 err
= i40e_init_adminq(hw
);
8626 dev_info(&pdev
->dev
, "%s\n", i40e_fw_version_str(hw
));
8628 dev_info(&pdev
->dev
,
8629 "init_adminq failed: %d expecting API %02x.%02x\n",
8631 I40E_FW_API_VERSION_MAJOR
, I40E_FW_API_VERSION_MINOR
);
8635 if (hw
->aq
.api_min_ver
> I40E_FW_API_VERSION_MINOR
)
8636 dev_info(&pdev
->dev
,
8637 "Note: FW API version %02x.%02x newer than expected %02x.%02x, recommend driver update.\n",
8638 hw
->aq
.api_maj_ver
, hw
->aq
.api_min_ver
,
8639 I40E_FW_API_VERSION_MAJOR
, I40E_FW_API_VERSION_MINOR
);
8641 if (hw
->aq
.api_maj_ver
< I40E_FW_API_VERSION_MAJOR
||
8642 hw
->aq
.api_min_ver
< (I40E_FW_API_VERSION_MINOR
-1))
8643 dev_info(&pdev
->dev
,
8644 "Note: FW API version %02x.%02x older than expected %02x.%02x, recommend nvm update.\n",
8645 hw
->aq
.api_maj_ver
, hw
->aq
.api_min_ver
,
8646 I40E_FW_API_VERSION_MAJOR
, I40E_FW_API_VERSION_MINOR
);
8649 i40e_verify_eeprom(pf
);
8651 /* Rev 0 hardware was never productized */
8652 if (hw
->revision_id
< 1)
8653 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");
8655 i40e_clear_pxe_mode(hw
);
8656 err
= i40e_get_capabilities(pf
);
8658 goto err_adminq_setup
;
8660 err
= i40e_sw_init(pf
);
8662 dev_info(&pdev
->dev
, "sw_init failed: %d\n", err
);
8666 err
= i40e_init_lan_hmc(hw
, hw
->func_caps
.num_tx_qp
,
8667 hw
->func_caps
.num_rx_qp
,
8668 pf
->fcoe_hmc_cntx_num
, pf
->fcoe_hmc_filt_num
);
8670 dev_info(&pdev
->dev
, "init_lan_hmc failed: %d\n", err
);
8671 goto err_init_lan_hmc
;
8674 err
= i40e_configure_lan_hmc(hw
, I40E_HMC_MODEL_DIRECT_ONLY
);
8676 dev_info(&pdev
->dev
, "configure_lan_hmc failed: %d\n", err
);
8678 goto err_configure_lan_hmc
;
8681 i40e_get_mac_addr(hw
, hw
->mac
.addr
);
8682 if (!is_valid_ether_addr(hw
->mac
.addr
)) {
8683 dev_info(&pdev
->dev
, "invalid MAC address %pM\n", hw
->mac
.addr
);
8687 dev_info(&pdev
->dev
, "MAC address: %pM\n", hw
->mac
.addr
);
8688 ether_addr_copy(hw
->mac
.perm_addr
, hw
->mac
.addr
);
8690 pci_set_drvdata(pdev
, pf
);
8691 pci_save_state(pdev
);
8692 #ifdef CONFIG_I40E_DCB
8693 err
= i40e_init_pf_dcb(pf
);
8695 dev_info(&pdev
->dev
, "init_pf_dcb failed: %d\n", err
);
8696 pf
->flags
&= ~I40E_FLAG_DCB_CAPABLE
;
8697 /* Continue without DCB enabled */
8699 #endif /* CONFIG_I40E_DCB */
8701 /* set up periodic task facility */
8702 setup_timer(&pf
->service_timer
, i40e_service_timer
, (unsigned long)pf
);
8703 pf
->service_timer_period
= HZ
;
8705 INIT_WORK(&pf
->service_task
, i40e_service_task
);
8706 clear_bit(__I40E_SERVICE_SCHED
, &pf
->state
);
8707 pf
->flags
|= I40E_FLAG_NEED_LINK_UPDATE
;
8708 pf
->link_check_timeout
= jiffies
;
8710 /* WoL defaults to disabled */
8712 device_set_wakeup_enable(&pf
->pdev
->dev
, pf
->wol_en
);
8714 /* set up the main switch operations */
8715 i40e_determine_queue_usage(pf
);
8716 i40e_init_interrupt_scheme(pf
);
8718 /* The number of VSIs reported by the FW is the minimum guaranteed
8719 * to us; HW supports far more and we share the remaining pool with
8720 * the other PFs. We allocate space for more than the guarantee with
8721 * the understanding that we might not get them all later.
8723 if (pf
->hw
.func_caps
.num_vsis
< I40E_MIN_VSI_ALLOC
)
8724 pf
->num_alloc_vsi
= I40E_MIN_VSI_ALLOC
;
8726 pf
->num_alloc_vsi
= pf
->hw
.func_caps
.num_vsis
;
8728 /* Set up the *vsi struct and our local tracking of the MAIN PF vsi. */
8729 len
= sizeof(struct i40e_vsi
*) * pf
->num_alloc_vsi
;
8730 pf
->vsi
= kzalloc(len
, GFP_KERNEL
);
8733 goto err_switch_setup
;
8736 err
= i40e_setup_pf_switch(pf
, false);
8738 dev_info(&pdev
->dev
, "setup_pf_switch failed: %d\n", err
);
8741 /* if FDIR VSI was set up, start it now */
8742 for (i
= 0; i
< pf
->num_alloc_vsi
; i
++) {
8743 if (pf
->vsi
[i
] && pf
->vsi
[i
]->type
== I40E_VSI_FDIR
) {
8744 i40e_vsi_open(pf
->vsi
[i
]);
8749 /* The main driver is (mostly) up and happy. We need to set this state
8750 * before setting up the misc vector or we get a race and the vector
8751 * ends up disabled forever.
8753 clear_bit(__I40E_DOWN
, &pf
->state
);
8755 /* In case of MSIX we are going to setup the misc vector right here
8756 * to handle admin queue events etc. In case of legacy and MSI
8757 * the misc functionality and queue processing is combined in
8758 * the same vector and that gets setup at open.
8760 if (pf
->flags
& I40E_FLAG_MSIX_ENABLED
) {
8761 err
= i40e_setup_misc_vector(pf
);
8763 dev_info(&pdev
->dev
,
8764 "setup of misc vector failed: %d\n", err
);
8769 #ifdef CONFIG_PCI_IOV
8770 /* prep for VF support */
8771 if ((pf
->flags
& I40E_FLAG_SRIOV_ENABLED
) &&
8772 (pf
->flags
& I40E_FLAG_MSIX_ENABLED
) &&
8773 !test_bit(__I40E_BAD_EEPROM
, &pf
->state
)) {
8776 /* disable link interrupts for VFs */
8777 val
= rd32(hw
, I40E_PFGEN_PORTMDIO_NUM
);
8778 val
&= ~I40E_PFGEN_PORTMDIO_NUM_VFLINK_STAT_ENA_MASK
;
8779 wr32(hw
, I40E_PFGEN_PORTMDIO_NUM
, val
);
8782 if (pci_num_vf(pdev
)) {
8783 dev_info(&pdev
->dev
,
8784 "Active VFs found, allocating resources.\n");
8785 err
= i40e_alloc_vfs(pf
, pci_num_vf(pdev
));
8787 dev_info(&pdev
->dev
,
8788 "Error %d allocating resources for existing VFs\n",
8792 #endif /* CONFIG_PCI_IOV */
8796 i40e_dbg_pf_init(pf
);
8798 /* tell the firmware that we're starting */
8799 i40e_send_version(pf
);
8801 /* since everything's happy, start the service_task timer */
8802 mod_timer(&pf
->service_timer
,
8803 round_jiffies(jiffies
+ pf
->service_timer_period
));
8805 /* Get the negotiated link width and speed from PCI config space */
8806 pcie_capability_read_word(pf
->pdev
, PCI_EXP_LNKSTA
, &link_status
);
8808 i40e_set_pci_config_data(hw
, link_status
);
8810 dev_info(&pdev
->dev
, "PCI-Express: %s %s\n",
8811 (hw
->bus
.speed
== i40e_bus_speed_8000
? "Speed 8.0GT/s" :
8812 hw
->bus
.speed
== i40e_bus_speed_5000
? "Speed 5.0GT/s" :
8813 hw
->bus
.speed
== i40e_bus_speed_2500
? "Speed 2.5GT/s" :
8815 (hw
->bus
.width
== i40e_bus_width_pcie_x8
? "Width x8" :
8816 hw
->bus
.width
== i40e_bus_width_pcie_x4
? "Width x4" :
8817 hw
->bus
.width
== i40e_bus_width_pcie_x2
? "Width x2" :
8818 hw
->bus
.width
== i40e_bus_width_pcie_x1
? "Width x1" :
8821 if (hw
->bus
.width
< i40e_bus_width_pcie_x8
||
8822 hw
->bus
.speed
< i40e_bus_speed_8000
) {
8823 dev_warn(&pdev
->dev
, "PCI-Express bandwidth available for this device may be insufficient for optimal performance.\n");
8824 dev_warn(&pdev
->dev
, "Please move the device to a different PCI-e link with more lanes and/or higher transfer rate.\n");
8827 /* print a string summarizing features */
8828 i40e_print_features(pf
);
8832 /* Unwind what we've done if something failed in the setup */
8834 set_bit(__I40E_DOWN
, &pf
->state
);
8835 i40e_clear_interrupt_scheme(pf
);
8838 i40e_reset_interrupt_capability(pf
);
8839 del_timer_sync(&pf
->service_timer
);
8841 err_configure_lan_hmc
:
8842 (void)i40e_shutdown_lan_hmc(hw
);
8845 kfree(pf
->irq_pile
);
8848 (void)i40e_shutdown_adminq(hw
);
8850 iounmap(hw
->hw_addr
);
8854 pci_disable_pcie_error_reporting(pdev
);
8855 pci_release_selected_regions(pdev
,
8856 pci_select_bars(pdev
, IORESOURCE_MEM
));
8859 pci_disable_device(pdev
);
8864 * i40e_remove - Device removal routine
8865 * @pdev: PCI device information struct
8867 * i40e_remove is called by the PCI subsystem to alert the driver
8868 * that is should release a PCI device. This could be caused by a
8869 * Hot-Plug event, or because the driver is going to be removed from
8872 static void i40e_remove(struct pci_dev
*pdev
)
8874 struct i40e_pf
*pf
= pci_get_drvdata(pdev
);
8875 i40e_status ret_code
;
8878 i40e_dbg_pf_exit(pf
);
8882 /* no more scheduling of any task */
8883 set_bit(__I40E_DOWN
, &pf
->state
);
8884 del_timer_sync(&pf
->service_timer
);
8885 cancel_work_sync(&pf
->service_task
);
8887 if (pf
->flags
& I40E_FLAG_SRIOV_ENABLED
) {
8889 pf
->flags
&= ~I40E_FLAG_SRIOV_ENABLED
;
8892 i40e_fdir_teardown(pf
);
8894 /* If there is a switch structure or any orphans, remove them.
8895 * This will leave only the PF's VSI remaining.
8897 for (i
= 0; i
< I40E_MAX_VEB
; i
++) {
8901 if (pf
->veb
[i
]->uplink_seid
== pf
->mac_seid
||
8902 pf
->veb
[i
]->uplink_seid
== 0)
8903 i40e_switch_branch_release(pf
->veb
[i
]);
8906 /* Now we can shutdown the PF's VSI, just before we kill
8909 if (pf
->vsi
[pf
->lan_vsi
])
8910 i40e_vsi_release(pf
->vsi
[pf
->lan_vsi
]);
8912 i40e_stop_misc_vector(pf
);
8913 if (pf
->flags
& I40E_FLAG_MSIX_ENABLED
) {
8914 synchronize_irq(pf
->msix_entries
[0].vector
);
8915 free_irq(pf
->msix_entries
[0].vector
, pf
);
8918 /* shutdown and destroy the HMC */
8919 if (pf
->hw
.hmc
.hmc_obj
) {
8920 ret_code
= i40e_shutdown_lan_hmc(&pf
->hw
);
8922 dev_warn(&pdev
->dev
,
8923 "Failed to destroy the HMC resources: %d\n",
8927 /* shutdown the adminq */
8928 ret_code
= i40e_shutdown_adminq(&pf
->hw
);
8930 dev_warn(&pdev
->dev
,
8931 "Failed to destroy the Admin Queue resources: %d\n",
8934 /* Clear all dynamic memory lists of rings, q_vectors, and VSIs */
8935 i40e_clear_interrupt_scheme(pf
);
8936 for (i
= 0; i
< pf
->num_alloc_vsi
; i
++) {
8938 i40e_vsi_clear_rings(pf
->vsi
[i
]);
8939 i40e_vsi_clear(pf
->vsi
[i
]);
8944 for (i
= 0; i
< I40E_MAX_VEB
; i
++) {
8950 kfree(pf
->irq_pile
);
8953 iounmap(pf
->hw
.hw_addr
);
8955 pci_release_selected_regions(pdev
,
8956 pci_select_bars(pdev
, IORESOURCE_MEM
));
8958 pci_disable_pcie_error_reporting(pdev
);
8959 pci_disable_device(pdev
);
8963 * i40e_pci_error_detected - warning that something funky happened in PCI land
8964 * @pdev: PCI device information struct
8966 * Called to warn that something happened and the error handling steps
8967 * are in progress. Allows the driver to quiesce things, be ready for
8970 static pci_ers_result_t
i40e_pci_error_detected(struct pci_dev
*pdev
,
8971 enum pci_channel_state error
)
8973 struct i40e_pf
*pf
= pci_get_drvdata(pdev
);
8975 dev_info(&pdev
->dev
, "%s: error %d\n", __func__
, error
);
8977 /* shutdown all operations */
8978 if (!test_bit(__I40E_SUSPENDED
, &pf
->state
)) {
8980 i40e_prep_for_reset(pf
);
8984 /* Request a slot reset */
8985 return PCI_ERS_RESULT_NEED_RESET
;
8989 * i40e_pci_error_slot_reset - a PCI slot reset just happened
8990 * @pdev: PCI device information struct
8992 * Called to find if the driver can work with the device now that
8993 * the pci slot has been reset. If a basic connection seems good
8994 * (registers are readable and have sane content) then return a
8995 * happy little PCI_ERS_RESULT_xxx.
8997 static pci_ers_result_t
i40e_pci_error_slot_reset(struct pci_dev
*pdev
)
8999 struct i40e_pf
*pf
= pci_get_drvdata(pdev
);
9000 pci_ers_result_t result
;
9004 dev_info(&pdev
->dev
, "%s\n", __func__
);
9005 if (pci_enable_device_mem(pdev
)) {
9006 dev_info(&pdev
->dev
,
9007 "Cannot re-enable PCI device after reset.\n");
9008 result
= PCI_ERS_RESULT_DISCONNECT
;
9010 pci_set_master(pdev
);
9011 pci_restore_state(pdev
);
9012 pci_save_state(pdev
);
9013 pci_wake_from_d3(pdev
, false);
9015 reg
= rd32(&pf
->hw
, I40E_GLGEN_RTRIG
);
9017 result
= PCI_ERS_RESULT_RECOVERED
;
9019 result
= PCI_ERS_RESULT_DISCONNECT
;
9022 err
= pci_cleanup_aer_uncorrect_error_status(pdev
);
9024 dev_info(&pdev
->dev
,
9025 "pci_cleanup_aer_uncorrect_error_status failed 0x%0x\n",
9027 /* non-fatal, continue */
9034 * i40e_pci_error_resume - restart operations after PCI error recovery
9035 * @pdev: PCI device information struct
9037 * Called to allow the driver to bring things back up after PCI error
9038 * and/or reset recovery has finished.
9040 static void i40e_pci_error_resume(struct pci_dev
*pdev
)
9042 struct i40e_pf
*pf
= pci_get_drvdata(pdev
);
9044 dev_info(&pdev
->dev
, "%s\n", __func__
);
9045 if (test_bit(__I40E_SUSPENDED
, &pf
->state
))
9049 i40e_handle_reset_warning(pf
);
9054 * i40e_shutdown - PCI callback for shutting down
9055 * @pdev: PCI device information struct
9057 static void i40e_shutdown(struct pci_dev
*pdev
)
9059 struct i40e_pf
*pf
= pci_get_drvdata(pdev
);
9060 struct i40e_hw
*hw
= &pf
->hw
;
9062 set_bit(__I40E_SUSPENDED
, &pf
->state
);
9063 set_bit(__I40E_DOWN
, &pf
->state
);
9065 i40e_prep_for_reset(pf
);
9068 wr32(hw
, I40E_PFPM_APM
, (pf
->wol_en
? I40E_PFPM_APM_APME_MASK
: 0));
9069 wr32(hw
, I40E_PFPM_WUFC
, (pf
->wol_en
? I40E_PFPM_WUFC_MAG_MASK
: 0));
9071 if (system_state
== SYSTEM_POWER_OFF
) {
9072 pci_wake_from_d3(pdev
, pf
->wol_en
);
9073 pci_set_power_state(pdev
, PCI_D3hot
);
9079 * i40e_suspend - PCI callback for moving to D3
9080 * @pdev: PCI device information struct
9082 static int i40e_suspend(struct pci_dev
*pdev
, pm_message_t state
)
9084 struct i40e_pf
*pf
= pci_get_drvdata(pdev
);
9085 struct i40e_hw
*hw
= &pf
->hw
;
9087 set_bit(__I40E_SUSPENDED
, &pf
->state
);
9088 set_bit(__I40E_DOWN
, &pf
->state
);
9090 i40e_prep_for_reset(pf
);
9093 wr32(hw
, I40E_PFPM_APM
, (pf
->wol_en
? I40E_PFPM_APM_APME_MASK
: 0));
9094 wr32(hw
, I40E_PFPM_WUFC
, (pf
->wol_en
? I40E_PFPM_WUFC_MAG_MASK
: 0));
9096 pci_wake_from_d3(pdev
, pf
->wol_en
);
9097 pci_set_power_state(pdev
, PCI_D3hot
);
9103 * i40e_resume - PCI callback for waking up from D3
9104 * @pdev: PCI device information struct
9106 static int i40e_resume(struct pci_dev
*pdev
)
9108 struct i40e_pf
*pf
= pci_get_drvdata(pdev
);
9111 pci_set_power_state(pdev
, PCI_D0
);
9112 pci_restore_state(pdev
);
9113 /* pci_restore_state() clears dev->state_saves, so
9114 * call pci_save_state() again to restore it.
9116 pci_save_state(pdev
);
9118 err
= pci_enable_device_mem(pdev
);
9121 "%s: Cannot enable PCI device from suspend\n",
9125 pci_set_master(pdev
);
9127 /* no wakeup events while running */
9128 pci_wake_from_d3(pdev
, false);
9130 /* handling the reset will rebuild the device state */
9131 if (test_and_clear_bit(__I40E_SUSPENDED
, &pf
->state
)) {
9132 clear_bit(__I40E_DOWN
, &pf
->state
);
9134 i40e_reset_and_rebuild(pf
, false);
9142 static const struct pci_error_handlers i40e_err_handler
= {
9143 .error_detected
= i40e_pci_error_detected
,
9144 .slot_reset
= i40e_pci_error_slot_reset
,
9145 .resume
= i40e_pci_error_resume
,
9148 static struct pci_driver i40e_driver
= {
9149 .name
= i40e_driver_name
,
9150 .id_table
= i40e_pci_tbl
,
9151 .probe
= i40e_probe
,
9152 .remove
= i40e_remove
,
9154 .suspend
= i40e_suspend
,
9155 .resume
= i40e_resume
,
9157 .shutdown
= i40e_shutdown
,
9158 .err_handler
= &i40e_err_handler
,
9159 .sriov_configure
= i40e_pci_sriov_configure
,
9163 * i40e_init_module - Driver registration routine
9165 * i40e_init_module is the first routine called when the driver is
9166 * loaded. All it does is register with the PCI subsystem.
9168 static int __init
i40e_init_module(void)
9170 pr_info("%s: %s - version %s\n", i40e_driver_name
,
9171 i40e_driver_string
, i40e_driver_version_str
);
9172 pr_info("%s: %s\n", i40e_driver_name
, i40e_copyright
);
9174 return pci_register_driver(&i40e_driver
);
9176 module_init(i40e_init_module
);
9179 * i40e_exit_module - Driver exit cleanup routine
9181 * i40e_exit_module is called just before the driver is removed
9184 static void __exit
i40e_exit_module(void)
9186 pci_unregister_driver(&i40e_driver
);
9189 module_exit(i40e_exit_module
);