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 3
42 #define DRV_VERSION_BUILD 36
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_SFP_X710
), 0},
71 {PCI_VDEVICE(INTEL
, I40E_DEV_ID_QEMU
), 0},
72 {PCI_VDEVICE(INTEL
, I40E_DEV_ID_KX_A
), 0},
73 {PCI_VDEVICE(INTEL
, I40E_DEV_ID_KX_B
), 0},
74 {PCI_VDEVICE(INTEL
, I40E_DEV_ID_KX_C
), 0},
75 {PCI_VDEVICE(INTEL
, I40E_DEV_ID_KX_D
), 0},
76 {PCI_VDEVICE(INTEL
, I40E_DEV_ID_QSFP_A
), 0},
77 {PCI_VDEVICE(INTEL
, I40E_DEV_ID_QSFP_B
), 0},
78 {PCI_VDEVICE(INTEL
, I40E_DEV_ID_QSFP_C
), 0},
79 /* required last entry */
82 MODULE_DEVICE_TABLE(pci
, i40e_pci_tbl
);
84 #define I40E_MAX_VF_COUNT 128
85 static int debug
= -1;
86 module_param(debug
, int, 0);
87 MODULE_PARM_DESC(debug
, "Debug level (0=none,...,16=all)");
89 MODULE_AUTHOR("Intel Corporation, <e1000-devel@lists.sourceforge.net>");
90 MODULE_DESCRIPTION("Intel(R) Ethernet Connection XL710 Network Driver");
91 MODULE_LICENSE("GPL");
92 MODULE_VERSION(DRV_VERSION
);
95 * i40e_allocate_dma_mem_d - OS specific memory alloc for shared code
96 * @hw: pointer to the HW structure
97 * @mem: ptr to mem struct to fill out
98 * @size: size of memory requested
99 * @alignment: what to align the allocation to
101 int i40e_allocate_dma_mem_d(struct i40e_hw
*hw
, struct i40e_dma_mem
*mem
,
102 u64 size
, u32 alignment
)
104 struct i40e_pf
*pf
= (struct i40e_pf
*)hw
->back
;
106 mem
->size
= ALIGN(size
, alignment
);
107 mem
->va
= dma_zalloc_coherent(&pf
->pdev
->dev
, mem
->size
,
108 &mem
->pa
, GFP_KERNEL
);
116 * i40e_free_dma_mem_d - OS specific memory free for shared code
117 * @hw: pointer to the HW structure
118 * @mem: ptr to mem struct to free
120 int i40e_free_dma_mem_d(struct i40e_hw
*hw
, struct i40e_dma_mem
*mem
)
122 struct i40e_pf
*pf
= (struct i40e_pf
*)hw
->back
;
124 dma_free_coherent(&pf
->pdev
->dev
, mem
->size
, mem
->va
, mem
->pa
);
133 * i40e_allocate_virt_mem_d - OS specific memory alloc for shared code
134 * @hw: pointer to the HW structure
135 * @mem: ptr to mem struct to fill out
136 * @size: size of memory requested
138 int i40e_allocate_virt_mem_d(struct i40e_hw
*hw
, struct i40e_virt_mem
*mem
,
142 mem
->va
= kzalloc(size
, GFP_KERNEL
);
151 * i40e_free_virt_mem_d - OS specific memory free for shared code
152 * @hw: pointer to the HW structure
153 * @mem: ptr to mem struct to free
155 int i40e_free_virt_mem_d(struct i40e_hw
*hw
, struct i40e_virt_mem
*mem
)
157 /* it's ok to kfree a NULL pointer */
166 * i40e_get_lump - find a lump of free generic resource
167 * @pf: board private structure
168 * @pile: the pile of resource to search
169 * @needed: the number of items needed
170 * @id: an owner id to stick on the items assigned
172 * Returns the base item index of the lump, or negative for error
174 * The search_hint trick and lack of advanced fit-finding only work
175 * because we're highly likely to have all the same size lump requests.
176 * Linear search time and any fragmentation should be minimal.
178 static int i40e_get_lump(struct i40e_pf
*pf
, struct i40e_lump_tracking
*pile
,
184 if (!pile
|| needed
== 0 || id
>= I40E_PILE_VALID_BIT
) {
185 dev_info(&pf
->pdev
->dev
,
186 "param err: pile=%p needed=%d id=0x%04x\n",
191 /* start the linear search with an imperfect hint */
192 i
= pile
->search_hint
;
193 while (i
< pile
->num_entries
) {
194 /* skip already allocated entries */
195 if (pile
->list
[i
] & I40E_PILE_VALID_BIT
) {
200 /* do we have enough in this lump? */
201 for (j
= 0; (j
< needed
) && ((i
+j
) < pile
->num_entries
); j
++) {
202 if (pile
->list
[i
+j
] & I40E_PILE_VALID_BIT
)
207 /* there was enough, so assign it to the requestor */
208 for (j
= 0; j
< needed
; j
++)
209 pile
->list
[i
+j
] = id
| I40E_PILE_VALID_BIT
;
211 pile
->search_hint
= i
+ j
;
214 /* not enough, so skip over it and continue looking */
223 * i40e_put_lump - return a lump of generic resource
224 * @pile: the pile of resource to search
225 * @index: the base item index
226 * @id: the owner id of the items assigned
228 * Returns the count of items in the lump
230 static int i40e_put_lump(struct i40e_lump_tracking
*pile
, u16 index
, u16 id
)
232 int valid_id
= (id
| I40E_PILE_VALID_BIT
);
236 if (!pile
|| index
>= pile
->num_entries
)
240 i
< pile
->num_entries
&& pile
->list
[i
] == valid_id
;
246 if (count
&& index
< pile
->search_hint
)
247 pile
->search_hint
= index
;
253 * i40e_service_event_schedule - Schedule the service task to wake up
254 * @pf: board private structure
256 * If not already scheduled, this puts the task into the work queue
258 static void i40e_service_event_schedule(struct i40e_pf
*pf
)
260 if (!test_bit(__I40E_DOWN
, &pf
->state
) &&
261 !test_bit(__I40E_RESET_RECOVERY_PENDING
, &pf
->state
) &&
262 !test_and_set_bit(__I40E_SERVICE_SCHED
, &pf
->state
))
263 schedule_work(&pf
->service_task
);
267 * i40e_tx_timeout - Respond to a Tx Hang
268 * @netdev: network interface device structure
270 * If any port has noticed a Tx timeout, it is likely that the whole
271 * device is munged, not just the one netdev port, so go for the full
274 static void i40e_tx_timeout(struct net_device
*netdev
)
276 struct i40e_netdev_priv
*np
= netdev_priv(netdev
);
277 struct i40e_vsi
*vsi
= np
->vsi
;
278 struct i40e_pf
*pf
= vsi
->back
;
280 pf
->tx_timeout_count
++;
282 if (time_after(jiffies
, (pf
->tx_timeout_last_recovery
+ HZ
*20)))
283 pf
->tx_timeout_recovery_level
= 0;
284 pf
->tx_timeout_last_recovery
= jiffies
;
285 netdev_info(netdev
, "tx_timeout recovery level %d\n",
286 pf
->tx_timeout_recovery_level
);
288 switch (pf
->tx_timeout_recovery_level
) {
290 /* disable and re-enable queues for the VSI */
291 if (in_interrupt()) {
292 set_bit(__I40E_REINIT_REQUESTED
, &pf
->state
);
293 set_bit(__I40E_REINIT_REQUESTED
, &vsi
->state
);
295 i40e_vsi_reinit_locked(vsi
);
299 set_bit(__I40E_PF_RESET_REQUESTED
, &pf
->state
);
302 set_bit(__I40E_CORE_RESET_REQUESTED
, &pf
->state
);
305 set_bit(__I40E_GLOBAL_RESET_REQUESTED
, &pf
->state
);
308 netdev_err(netdev
, "tx_timeout recovery unsuccessful\n");
309 set_bit(__I40E_DOWN
, &vsi
->state
);
313 i40e_service_event_schedule(pf
);
314 pf
->tx_timeout_recovery_level
++;
318 * i40e_release_rx_desc - Store the new tail and head values
319 * @rx_ring: ring to bump
320 * @val: new head index
322 static inline void i40e_release_rx_desc(struct i40e_ring
*rx_ring
, u32 val
)
324 rx_ring
->next_to_use
= val
;
326 /* Force memory writes to complete before letting h/w
327 * know there are new descriptors to fetch. (Only
328 * applicable for weak-ordered memory model archs,
332 writel(val
, rx_ring
->tail
);
336 * i40e_get_vsi_stats_struct - Get System Network Statistics
337 * @vsi: the VSI we care about
339 * Returns the address of the device statistics structure.
340 * The statistics are actually updated from the service task.
342 struct rtnl_link_stats64
*i40e_get_vsi_stats_struct(struct i40e_vsi
*vsi
)
344 return &vsi
->net_stats
;
348 * i40e_get_netdev_stats_struct - Get statistics for netdev interface
349 * @netdev: network interface device structure
351 * Returns the address of the device statistics structure.
352 * The statistics are actually updated from the service task.
354 static struct rtnl_link_stats64
*i40e_get_netdev_stats_struct(
355 struct net_device
*netdev
,
356 struct rtnl_link_stats64
*stats
)
358 struct i40e_netdev_priv
*np
= netdev_priv(netdev
);
359 struct i40e_vsi
*vsi
= np
->vsi
;
360 struct rtnl_link_stats64
*vsi_stats
= i40e_get_vsi_stats_struct(vsi
);
363 if (test_bit(__I40E_DOWN
, &vsi
->state
))
370 for (i
= 0; i
< vsi
->num_queue_pairs
; i
++) {
371 struct i40e_ring
*tx_ring
, *rx_ring
;
375 tx_ring
= ACCESS_ONCE(vsi
->tx_rings
[i
]);
380 start
= u64_stats_fetch_begin_irq(&tx_ring
->syncp
);
381 packets
= tx_ring
->stats
.packets
;
382 bytes
= tx_ring
->stats
.bytes
;
383 } while (u64_stats_fetch_retry_irq(&tx_ring
->syncp
, start
));
385 stats
->tx_packets
+= packets
;
386 stats
->tx_bytes
+= bytes
;
387 rx_ring
= &tx_ring
[1];
390 start
= u64_stats_fetch_begin_irq(&rx_ring
->syncp
);
391 packets
= rx_ring
->stats
.packets
;
392 bytes
= rx_ring
->stats
.bytes
;
393 } while (u64_stats_fetch_retry_irq(&rx_ring
->syncp
, start
));
395 stats
->rx_packets
+= packets
;
396 stats
->rx_bytes
+= bytes
;
400 /* following stats updated by ixgbe_watchdog_task() */
401 stats
->multicast
= vsi_stats
->multicast
;
402 stats
->tx_errors
= vsi_stats
->tx_errors
;
403 stats
->tx_dropped
= vsi_stats
->tx_dropped
;
404 stats
->rx_errors
= vsi_stats
->rx_errors
;
405 stats
->rx_crc_errors
= vsi_stats
->rx_crc_errors
;
406 stats
->rx_length_errors
= vsi_stats
->rx_length_errors
;
412 * i40e_vsi_reset_stats - Resets all stats of the given vsi
413 * @vsi: the VSI to have its stats reset
415 void i40e_vsi_reset_stats(struct i40e_vsi
*vsi
)
417 struct rtnl_link_stats64
*ns
;
423 ns
= i40e_get_vsi_stats_struct(vsi
);
424 memset(ns
, 0, sizeof(*ns
));
425 memset(&vsi
->net_stats_offsets
, 0, sizeof(vsi
->net_stats_offsets
));
426 memset(&vsi
->eth_stats
, 0, sizeof(vsi
->eth_stats
));
427 memset(&vsi
->eth_stats_offsets
, 0, sizeof(vsi
->eth_stats_offsets
));
428 if (vsi
->rx_rings
&& vsi
->rx_rings
[0]) {
429 for (i
= 0; i
< vsi
->num_queue_pairs
; i
++) {
430 memset(&vsi
->rx_rings
[i
]->stats
, 0 ,
431 sizeof(vsi
->rx_rings
[i
]->stats
));
432 memset(&vsi
->rx_rings
[i
]->rx_stats
, 0 ,
433 sizeof(vsi
->rx_rings
[i
]->rx_stats
));
434 memset(&vsi
->tx_rings
[i
]->stats
, 0 ,
435 sizeof(vsi
->tx_rings
[i
]->stats
));
436 memset(&vsi
->tx_rings
[i
]->tx_stats
, 0,
437 sizeof(vsi
->tx_rings
[i
]->tx_stats
));
440 vsi
->stat_offsets_loaded
= false;
444 * i40e_pf_reset_stats - Reset all of the stats for the given pf
445 * @pf: the PF to be reset
447 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;
455 * i40e_stat_update48 - read and update a 48 bit stat from the chip
456 * @hw: ptr to the hardware info
457 * @hireg: the high 32 bit reg to read
458 * @loreg: the low 32 bit reg to read
459 * @offset_loaded: has the initial offset been loaded yet
460 * @offset: ptr to current offset value
461 * @stat: ptr to the stat
463 * Since the device stats are not reset at PFReset, they likely will not
464 * be zeroed when the driver starts. We'll save the first values read
465 * and use them as offsets to be subtracted from the raw values in order
466 * to report stats that count from zero. In the process, we also manage
467 * the potential roll-over.
469 static void i40e_stat_update48(struct i40e_hw
*hw
, u32 hireg
, u32 loreg
,
470 bool offset_loaded
, u64
*offset
, u64
*stat
)
474 if (hw
->device_id
== I40E_DEV_ID_QEMU
) {
475 new_data
= rd32(hw
, loreg
);
476 new_data
|= ((u64
)(rd32(hw
, hireg
) & 0xFFFF)) << 32;
478 new_data
= rd64(hw
, loreg
);
482 if (likely(new_data
>= *offset
))
483 *stat
= new_data
- *offset
;
485 *stat
= (new_data
+ ((u64
)1 << 48)) - *offset
;
486 *stat
&= 0xFFFFFFFFFFFFULL
;
490 * i40e_stat_update32 - read and update a 32 bit stat from the chip
491 * @hw: ptr to the hardware info
492 * @reg: the hw reg to read
493 * @offset_loaded: has the initial offset been loaded yet
494 * @offset: ptr to current offset value
495 * @stat: ptr to the stat
497 static void i40e_stat_update32(struct i40e_hw
*hw
, u32 reg
,
498 bool offset_loaded
, u64
*offset
, u64
*stat
)
502 new_data
= rd32(hw
, reg
);
505 if (likely(new_data
>= *offset
))
506 *stat
= (u32
)(new_data
- *offset
);
508 *stat
= (u32
)((new_data
+ ((u64
)1 << 32)) - *offset
);
512 * i40e_update_eth_stats - Update VSI-specific ethernet statistics counters.
513 * @vsi: the VSI to be updated
515 void i40e_update_eth_stats(struct i40e_vsi
*vsi
)
517 int stat_idx
= le16_to_cpu(vsi
->info
.stat_counter_idx
);
518 struct i40e_pf
*pf
= vsi
->back
;
519 struct i40e_hw
*hw
= &pf
->hw
;
520 struct i40e_eth_stats
*oes
;
521 struct i40e_eth_stats
*es
; /* device's eth stats */
523 es
= &vsi
->eth_stats
;
524 oes
= &vsi
->eth_stats_offsets
;
526 /* Gather up the stats that the hw collects */
527 i40e_stat_update32(hw
, I40E_GLV_TEPC(stat_idx
),
528 vsi
->stat_offsets_loaded
,
529 &oes
->tx_errors
, &es
->tx_errors
);
530 i40e_stat_update32(hw
, I40E_GLV_RDPC(stat_idx
),
531 vsi
->stat_offsets_loaded
,
532 &oes
->rx_discards
, &es
->rx_discards
);
534 i40e_stat_update48(hw
, I40E_GLV_GORCH(stat_idx
),
535 I40E_GLV_GORCL(stat_idx
),
536 vsi
->stat_offsets_loaded
,
537 &oes
->rx_bytes
, &es
->rx_bytes
);
538 i40e_stat_update48(hw
, I40E_GLV_UPRCH(stat_idx
),
539 I40E_GLV_UPRCL(stat_idx
),
540 vsi
->stat_offsets_loaded
,
541 &oes
->rx_unicast
, &es
->rx_unicast
);
542 i40e_stat_update48(hw
, I40E_GLV_MPRCH(stat_idx
),
543 I40E_GLV_MPRCL(stat_idx
),
544 vsi
->stat_offsets_loaded
,
545 &oes
->rx_multicast
, &es
->rx_multicast
);
546 i40e_stat_update48(hw
, I40E_GLV_BPRCH(stat_idx
),
547 I40E_GLV_BPRCL(stat_idx
),
548 vsi
->stat_offsets_loaded
,
549 &oes
->rx_broadcast
, &es
->rx_broadcast
);
551 i40e_stat_update48(hw
, I40E_GLV_GOTCH(stat_idx
),
552 I40E_GLV_GOTCL(stat_idx
),
553 vsi
->stat_offsets_loaded
,
554 &oes
->tx_bytes
, &es
->tx_bytes
);
555 i40e_stat_update48(hw
, I40E_GLV_UPTCH(stat_idx
),
556 I40E_GLV_UPTCL(stat_idx
),
557 vsi
->stat_offsets_loaded
,
558 &oes
->tx_unicast
, &es
->tx_unicast
);
559 i40e_stat_update48(hw
, I40E_GLV_MPTCH(stat_idx
),
560 I40E_GLV_MPTCL(stat_idx
),
561 vsi
->stat_offsets_loaded
,
562 &oes
->tx_multicast
, &es
->tx_multicast
);
563 i40e_stat_update48(hw
, I40E_GLV_BPTCH(stat_idx
),
564 I40E_GLV_BPTCL(stat_idx
),
565 vsi
->stat_offsets_loaded
,
566 &oes
->tx_broadcast
, &es
->tx_broadcast
);
567 vsi
->stat_offsets_loaded
= true;
571 * i40e_update_veb_stats - Update Switch component statistics
572 * @veb: the VEB being updated
574 static void i40e_update_veb_stats(struct i40e_veb
*veb
)
576 struct i40e_pf
*pf
= veb
->pf
;
577 struct i40e_hw
*hw
= &pf
->hw
;
578 struct i40e_eth_stats
*oes
;
579 struct i40e_eth_stats
*es
; /* device's eth stats */
582 idx
= veb
->stats_idx
;
584 oes
= &veb
->stats_offsets
;
586 /* Gather up the stats that the hw collects */
587 i40e_stat_update32(hw
, I40E_GLSW_TDPC(idx
),
588 veb
->stat_offsets_loaded
,
589 &oes
->tx_discards
, &es
->tx_discards
);
590 if (hw
->revision_id
> 0)
591 i40e_stat_update32(hw
, I40E_GLSW_RUPP(idx
),
592 veb
->stat_offsets_loaded
,
593 &oes
->rx_unknown_protocol
,
594 &es
->rx_unknown_protocol
);
595 i40e_stat_update48(hw
, I40E_GLSW_GORCH(idx
), I40E_GLSW_GORCL(idx
),
596 veb
->stat_offsets_loaded
,
597 &oes
->rx_bytes
, &es
->rx_bytes
);
598 i40e_stat_update48(hw
, I40E_GLSW_UPRCH(idx
), I40E_GLSW_UPRCL(idx
),
599 veb
->stat_offsets_loaded
,
600 &oes
->rx_unicast
, &es
->rx_unicast
);
601 i40e_stat_update48(hw
, I40E_GLSW_MPRCH(idx
), I40E_GLSW_MPRCL(idx
),
602 veb
->stat_offsets_loaded
,
603 &oes
->rx_multicast
, &es
->rx_multicast
);
604 i40e_stat_update48(hw
, I40E_GLSW_BPRCH(idx
), I40E_GLSW_BPRCL(idx
),
605 veb
->stat_offsets_loaded
,
606 &oes
->rx_broadcast
, &es
->rx_broadcast
);
608 i40e_stat_update48(hw
, I40E_GLSW_GOTCH(idx
), I40E_GLSW_GOTCL(idx
),
609 veb
->stat_offsets_loaded
,
610 &oes
->tx_bytes
, &es
->tx_bytes
);
611 i40e_stat_update48(hw
, I40E_GLSW_UPTCH(idx
), I40E_GLSW_UPTCL(idx
),
612 veb
->stat_offsets_loaded
,
613 &oes
->tx_unicast
, &es
->tx_unicast
);
614 i40e_stat_update48(hw
, I40E_GLSW_MPTCH(idx
), I40E_GLSW_MPTCL(idx
),
615 veb
->stat_offsets_loaded
,
616 &oes
->tx_multicast
, &es
->tx_multicast
);
617 i40e_stat_update48(hw
, I40E_GLSW_BPTCH(idx
), I40E_GLSW_BPTCL(idx
),
618 veb
->stat_offsets_loaded
,
619 &oes
->tx_broadcast
, &es
->tx_broadcast
);
620 veb
->stat_offsets_loaded
= true;
624 * i40e_update_link_xoff_rx - Update XOFF received in link flow control mode
625 * @pf: the corresponding PF
627 * Update the Rx XOFF counter (PAUSE frames) in link flow control mode
629 static void i40e_update_link_xoff_rx(struct i40e_pf
*pf
)
631 struct i40e_hw_port_stats
*osd
= &pf
->stats_offsets
;
632 struct i40e_hw_port_stats
*nsd
= &pf
->stats
;
633 struct i40e_hw
*hw
= &pf
->hw
;
637 if ((hw
->fc
.current_mode
!= I40E_FC_FULL
) &&
638 (hw
->fc
.current_mode
!= I40E_FC_RX_PAUSE
))
641 xoff
= nsd
->link_xoff_rx
;
642 i40e_stat_update32(hw
, I40E_GLPRT_LXOFFRXC(hw
->port
),
643 pf
->stat_offsets_loaded
,
644 &osd
->link_xoff_rx
, &nsd
->link_xoff_rx
);
646 /* No new LFC xoff rx */
647 if (!(nsd
->link_xoff_rx
- xoff
))
650 /* Clear the __I40E_HANG_CHECK_ARMED bit for all Tx rings */
651 for (v
= 0; v
< pf
->hw
.func_caps
.num_vsis
; v
++) {
652 struct i40e_vsi
*vsi
= pf
->vsi
[v
];
657 for (i
= 0; i
< vsi
->num_queue_pairs
; i
++) {
658 struct i40e_ring
*ring
= vsi
->tx_rings
[i
];
659 clear_bit(__I40E_HANG_CHECK_ARMED
, &ring
->state
);
665 * i40e_update_prio_xoff_rx - Update XOFF received in PFC mode
666 * @pf: the corresponding PF
668 * Update the Rx XOFF counter (PAUSE frames) in PFC mode
670 static void i40e_update_prio_xoff_rx(struct i40e_pf
*pf
)
672 struct i40e_hw_port_stats
*osd
= &pf
->stats_offsets
;
673 struct i40e_hw_port_stats
*nsd
= &pf
->stats
;
674 bool xoff
[I40E_MAX_TRAFFIC_CLASS
] = {false};
675 struct i40e_dcbx_config
*dcb_cfg
;
676 struct i40e_hw
*hw
= &pf
->hw
;
680 dcb_cfg
= &hw
->local_dcbx_config
;
682 /* See if DCB enabled with PFC TC */
683 if (!(pf
->flags
& I40E_FLAG_DCB_ENABLED
) ||
684 !(dcb_cfg
->pfc
.pfcenable
)) {
685 i40e_update_link_xoff_rx(pf
);
689 for (i
= 0; i
< I40E_MAX_USER_PRIORITY
; i
++) {
690 u64 prio_xoff
= nsd
->priority_xoff_rx
[i
];
691 i40e_stat_update32(hw
, I40E_GLPRT_PXOFFRXC(hw
->port
, i
),
692 pf
->stat_offsets_loaded
,
693 &osd
->priority_xoff_rx
[i
],
694 &nsd
->priority_xoff_rx
[i
]);
696 /* No new PFC xoff rx */
697 if (!(nsd
->priority_xoff_rx
[i
] - prio_xoff
))
699 /* Get the TC for given priority */
700 tc
= dcb_cfg
->etscfg
.prioritytable
[i
];
704 /* Clear the __I40E_HANG_CHECK_ARMED bit for Tx rings */
705 for (v
= 0; v
< pf
->hw
.func_caps
.num_vsis
; v
++) {
706 struct i40e_vsi
*vsi
= pf
->vsi
[v
];
711 for (i
= 0; i
< vsi
->num_queue_pairs
; i
++) {
712 struct i40e_ring
*ring
= vsi
->tx_rings
[i
];
716 clear_bit(__I40E_HANG_CHECK_ARMED
,
723 * i40e_update_stats - Update the board statistics counters.
724 * @vsi: the VSI to be updated
726 * There are a few instances where we store the same stat in a
727 * couple of different structs. This is partly because we have
728 * the netdev stats that need to be filled out, which is slightly
729 * different from the "eth_stats" defined by the chip and used in
730 * VF communications. We sort it all out here in a central place.
732 void i40e_update_stats(struct i40e_vsi
*vsi
)
734 struct i40e_pf
*pf
= vsi
->back
;
735 struct i40e_hw
*hw
= &pf
->hw
;
736 struct rtnl_link_stats64
*ons
;
737 struct rtnl_link_stats64
*ns
; /* netdev stats */
738 struct i40e_eth_stats
*oes
;
739 struct i40e_eth_stats
*es
; /* device's eth stats */
740 u32 tx_restart
, tx_busy
;
748 if (test_bit(__I40E_DOWN
, &vsi
->state
) ||
749 test_bit(__I40E_CONFIG_BUSY
, &pf
->state
))
752 ns
= i40e_get_vsi_stats_struct(vsi
);
753 ons
= &vsi
->net_stats_offsets
;
754 es
= &vsi
->eth_stats
;
755 oes
= &vsi
->eth_stats_offsets
;
757 /* Gather up the netdev and vsi stats that the driver collects
758 * on the fly during packet processing
762 tx_restart
= tx_busy
= 0;
766 for (q
= 0; q
< vsi
->num_queue_pairs
; q
++) {
772 p
= ACCESS_ONCE(vsi
->tx_rings
[q
]);
775 start
= u64_stats_fetch_begin_irq(&p
->syncp
);
776 packets
= p
->stats
.packets
;
777 bytes
= p
->stats
.bytes
;
778 } while (u64_stats_fetch_retry_irq(&p
->syncp
, start
));
781 tx_restart
+= p
->tx_stats
.restart_queue
;
782 tx_busy
+= p
->tx_stats
.tx_busy
;
784 /* Rx queue is part of the same block as Tx queue */
787 start
= u64_stats_fetch_begin_irq(&p
->syncp
);
788 packets
= p
->stats
.packets
;
789 bytes
= p
->stats
.bytes
;
790 } while (u64_stats_fetch_retry_irq(&p
->syncp
, start
));
793 rx_buf
+= p
->rx_stats
.alloc_buff_failed
;
794 rx_page
+= p
->rx_stats
.alloc_page_failed
;
797 vsi
->tx_restart
= tx_restart
;
798 vsi
->tx_busy
= tx_busy
;
799 vsi
->rx_page_failed
= rx_page
;
800 vsi
->rx_buf_failed
= rx_buf
;
802 ns
->rx_packets
= rx_p
;
804 ns
->tx_packets
= tx_p
;
807 i40e_update_eth_stats(vsi
);
808 /* update netdev stats from eth stats */
809 ons
->rx_errors
= oes
->rx_errors
;
810 ns
->rx_errors
= es
->rx_errors
;
811 ons
->tx_errors
= oes
->tx_errors
;
812 ns
->tx_errors
= es
->tx_errors
;
813 ons
->multicast
= oes
->rx_multicast
;
814 ns
->multicast
= es
->rx_multicast
;
815 ons
->tx_dropped
= oes
->tx_discards
;
816 ns
->tx_dropped
= es
->tx_discards
;
818 /* Get the port data only if this is the main PF VSI */
819 if (vsi
== pf
->vsi
[pf
->lan_vsi
]) {
820 struct i40e_hw_port_stats
*nsd
= &pf
->stats
;
821 struct i40e_hw_port_stats
*osd
= &pf
->stats_offsets
;
823 i40e_stat_update48(hw
, I40E_GLPRT_GORCH(hw
->port
),
824 I40E_GLPRT_GORCL(hw
->port
),
825 pf
->stat_offsets_loaded
,
826 &osd
->eth
.rx_bytes
, &nsd
->eth
.rx_bytes
);
827 i40e_stat_update48(hw
, I40E_GLPRT_GOTCH(hw
->port
),
828 I40E_GLPRT_GOTCL(hw
->port
),
829 pf
->stat_offsets_loaded
,
830 &osd
->eth
.tx_bytes
, &nsd
->eth
.tx_bytes
);
831 i40e_stat_update32(hw
, I40E_GLPRT_RDPC(hw
->port
),
832 pf
->stat_offsets_loaded
,
833 &osd
->eth
.rx_discards
,
834 &nsd
->eth
.rx_discards
);
835 i40e_stat_update32(hw
, I40E_GLPRT_TDPC(hw
->port
),
836 pf
->stat_offsets_loaded
,
837 &osd
->eth
.tx_discards
,
838 &nsd
->eth
.tx_discards
);
839 i40e_stat_update48(hw
, I40E_GLPRT_MPRCH(hw
->port
),
840 I40E_GLPRT_MPRCL(hw
->port
),
841 pf
->stat_offsets_loaded
,
842 &osd
->eth
.rx_multicast
,
843 &nsd
->eth
.rx_multicast
);
845 i40e_stat_update32(hw
, I40E_GLPRT_TDOLD(hw
->port
),
846 pf
->stat_offsets_loaded
,
847 &osd
->tx_dropped_link_down
,
848 &nsd
->tx_dropped_link_down
);
850 i40e_stat_update32(hw
, I40E_GLPRT_CRCERRS(hw
->port
),
851 pf
->stat_offsets_loaded
,
852 &osd
->crc_errors
, &nsd
->crc_errors
);
853 ns
->rx_crc_errors
= nsd
->crc_errors
;
855 i40e_stat_update32(hw
, I40E_GLPRT_ILLERRC(hw
->port
),
856 pf
->stat_offsets_loaded
,
857 &osd
->illegal_bytes
, &nsd
->illegal_bytes
);
858 ns
->rx_errors
= nsd
->crc_errors
859 + nsd
->illegal_bytes
;
861 i40e_stat_update32(hw
, I40E_GLPRT_MLFC(hw
->port
),
862 pf
->stat_offsets_loaded
,
863 &osd
->mac_local_faults
,
864 &nsd
->mac_local_faults
);
865 i40e_stat_update32(hw
, I40E_GLPRT_MRFC(hw
->port
),
866 pf
->stat_offsets_loaded
,
867 &osd
->mac_remote_faults
,
868 &nsd
->mac_remote_faults
);
870 i40e_stat_update32(hw
, I40E_GLPRT_RLEC(hw
->port
),
871 pf
->stat_offsets_loaded
,
872 &osd
->rx_length_errors
,
873 &nsd
->rx_length_errors
);
874 ns
->rx_length_errors
= nsd
->rx_length_errors
;
876 i40e_stat_update32(hw
, I40E_GLPRT_LXONRXC(hw
->port
),
877 pf
->stat_offsets_loaded
,
878 &osd
->link_xon_rx
, &nsd
->link_xon_rx
);
879 i40e_stat_update32(hw
, I40E_GLPRT_LXONTXC(hw
->port
),
880 pf
->stat_offsets_loaded
,
881 &osd
->link_xon_tx
, &nsd
->link_xon_tx
);
882 i40e_update_prio_xoff_rx(pf
); /* handles I40E_GLPRT_LXOFFRXC */
883 i40e_stat_update32(hw
, I40E_GLPRT_LXOFFTXC(hw
->port
),
884 pf
->stat_offsets_loaded
,
885 &osd
->link_xoff_tx
, &nsd
->link_xoff_tx
);
887 for (i
= 0; i
< 8; i
++) {
888 i40e_stat_update32(hw
, I40E_GLPRT_PXONRXC(hw
->port
, i
),
889 pf
->stat_offsets_loaded
,
890 &osd
->priority_xon_rx
[i
],
891 &nsd
->priority_xon_rx
[i
]);
892 i40e_stat_update32(hw
, I40E_GLPRT_PXONTXC(hw
->port
, i
),
893 pf
->stat_offsets_loaded
,
894 &osd
->priority_xon_tx
[i
],
895 &nsd
->priority_xon_tx
[i
]);
896 i40e_stat_update32(hw
, I40E_GLPRT_PXOFFTXC(hw
->port
, i
),
897 pf
->stat_offsets_loaded
,
898 &osd
->priority_xoff_tx
[i
],
899 &nsd
->priority_xoff_tx
[i
]);
900 i40e_stat_update32(hw
,
901 I40E_GLPRT_RXON2OFFCNT(hw
->port
, i
),
902 pf
->stat_offsets_loaded
,
903 &osd
->priority_xon_2_xoff
[i
],
904 &nsd
->priority_xon_2_xoff
[i
]);
907 i40e_stat_update48(hw
, I40E_GLPRT_PRC64H(hw
->port
),
908 I40E_GLPRT_PRC64L(hw
->port
),
909 pf
->stat_offsets_loaded
,
910 &osd
->rx_size_64
, &nsd
->rx_size_64
);
911 i40e_stat_update48(hw
, I40E_GLPRT_PRC127H(hw
->port
),
912 I40E_GLPRT_PRC127L(hw
->port
),
913 pf
->stat_offsets_loaded
,
914 &osd
->rx_size_127
, &nsd
->rx_size_127
);
915 i40e_stat_update48(hw
, I40E_GLPRT_PRC255H(hw
->port
),
916 I40E_GLPRT_PRC255L(hw
->port
),
917 pf
->stat_offsets_loaded
,
918 &osd
->rx_size_255
, &nsd
->rx_size_255
);
919 i40e_stat_update48(hw
, I40E_GLPRT_PRC511H(hw
->port
),
920 I40E_GLPRT_PRC511L(hw
->port
),
921 pf
->stat_offsets_loaded
,
922 &osd
->rx_size_511
, &nsd
->rx_size_511
);
923 i40e_stat_update48(hw
, I40E_GLPRT_PRC1023H(hw
->port
),
924 I40E_GLPRT_PRC1023L(hw
->port
),
925 pf
->stat_offsets_loaded
,
926 &osd
->rx_size_1023
, &nsd
->rx_size_1023
);
927 i40e_stat_update48(hw
, I40E_GLPRT_PRC1522H(hw
->port
),
928 I40E_GLPRT_PRC1522L(hw
->port
),
929 pf
->stat_offsets_loaded
,
930 &osd
->rx_size_1522
, &nsd
->rx_size_1522
);
931 i40e_stat_update48(hw
, I40E_GLPRT_PRC9522H(hw
->port
),
932 I40E_GLPRT_PRC9522L(hw
->port
),
933 pf
->stat_offsets_loaded
,
934 &osd
->rx_size_big
, &nsd
->rx_size_big
);
936 i40e_stat_update48(hw
, I40E_GLPRT_PTC64H(hw
->port
),
937 I40E_GLPRT_PTC64L(hw
->port
),
938 pf
->stat_offsets_loaded
,
939 &osd
->tx_size_64
, &nsd
->tx_size_64
);
940 i40e_stat_update48(hw
, I40E_GLPRT_PTC127H(hw
->port
),
941 I40E_GLPRT_PTC127L(hw
->port
),
942 pf
->stat_offsets_loaded
,
943 &osd
->tx_size_127
, &nsd
->tx_size_127
);
944 i40e_stat_update48(hw
, I40E_GLPRT_PTC255H(hw
->port
),
945 I40E_GLPRT_PTC255L(hw
->port
),
946 pf
->stat_offsets_loaded
,
947 &osd
->tx_size_255
, &nsd
->tx_size_255
);
948 i40e_stat_update48(hw
, I40E_GLPRT_PTC511H(hw
->port
),
949 I40E_GLPRT_PTC511L(hw
->port
),
950 pf
->stat_offsets_loaded
,
951 &osd
->tx_size_511
, &nsd
->tx_size_511
);
952 i40e_stat_update48(hw
, I40E_GLPRT_PTC1023H(hw
->port
),
953 I40E_GLPRT_PTC1023L(hw
->port
),
954 pf
->stat_offsets_loaded
,
955 &osd
->tx_size_1023
, &nsd
->tx_size_1023
);
956 i40e_stat_update48(hw
, I40E_GLPRT_PTC1522H(hw
->port
),
957 I40E_GLPRT_PTC1522L(hw
->port
),
958 pf
->stat_offsets_loaded
,
959 &osd
->tx_size_1522
, &nsd
->tx_size_1522
);
960 i40e_stat_update48(hw
, I40E_GLPRT_PTC9522H(hw
->port
),
961 I40E_GLPRT_PTC9522L(hw
->port
),
962 pf
->stat_offsets_loaded
,
963 &osd
->tx_size_big
, &nsd
->tx_size_big
);
965 i40e_stat_update32(hw
, I40E_GLPRT_RUC(hw
->port
),
966 pf
->stat_offsets_loaded
,
967 &osd
->rx_undersize
, &nsd
->rx_undersize
);
968 i40e_stat_update32(hw
, I40E_GLPRT_RFC(hw
->port
),
969 pf
->stat_offsets_loaded
,
970 &osd
->rx_fragments
, &nsd
->rx_fragments
);
971 i40e_stat_update32(hw
, I40E_GLPRT_ROC(hw
->port
),
972 pf
->stat_offsets_loaded
,
973 &osd
->rx_oversize
, &nsd
->rx_oversize
);
974 i40e_stat_update32(hw
, I40E_GLPRT_RJC(hw
->port
),
975 pf
->stat_offsets_loaded
,
976 &osd
->rx_jabber
, &nsd
->rx_jabber
);
978 val
= rd32(hw
, I40E_PRTPM_EEE_STAT
);
980 (val
& I40E_PRTPM_EEE_STAT_TX_LPI_STATUS_MASK
) >>
981 I40E_PRTPM_EEE_STAT_TX_LPI_STATUS_SHIFT
;
983 (val
& I40E_PRTPM_EEE_STAT_RX_LPI_STATUS_MASK
) >>
984 I40E_PRTPM_EEE_STAT_RX_LPI_STATUS_SHIFT
;
985 i40e_stat_update32(hw
, I40E_PRTPM_TLPIC
,
986 pf
->stat_offsets_loaded
,
987 &osd
->tx_lpi_count
, &nsd
->tx_lpi_count
);
988 i40e_stat_update32(hw
, I40E_PRTPM_RLPIC
,
989 pf
->stat_offsets_loaded
,
990 &osd
->rx_lpi_count
, &nsd
->rx_lpi_count
);
993 pf
->stat_offsets_loaded
= true;
997 * i40e_find_filter - Search VSI filter list for specific mac/vlan filter
998 * @vsi: the VSI to be searched
999 * @macaddr: the MAC address
1001 * @is_vf: make sure its a vf filter, else doesn't matter
1002 * @is_netdev: make sure its a netdev filter, else doesn't matter
1004 * Returns ptr to the filter object or NULL
1006 static struct i40e_mac_filter
*i40e_find_filter(struct i40e_vsi
*vsi
,
1007 u8
*macaddr
, s16 vlan
,
1008 bool is_vf
, bool is_netdev
)
1010 struct i40e_mac_filter
*f
;
1012 if (!vsi
|| !macaddr
)
1015 list_for_each_entry(f
, &vsi
->mac_filter_list
, list
) {
1016 if ((ether_addr_equal(macaddr
, f
->macaddr
)) &&
1017 (vlan
== f
->vlan
) &&
1018 (!is_vf
|| f
->is_vf
) &&
1019 (!is_netdev
|| f
->is_netdev
))
1026 * i40e_find_mac - Find a mac addr in the macvlan filters list
1027 * @vsi: the VSI to be searched
1028 * @macaddr: the MAC address we are searching for
1029 * @is_vf: make sure its a vf filter, else doesn't matter
1030 * @is_netdev: make sure its a netdev filter, else doesn't matter
1032 * Returns the first filter with the provided MAC address or NULL if
1033 * MAC address was not found
1035 struct i40e_mac_filter
*i40e_find_mac(struct i40e_vsi
*vsi
, u8
*macaddr
,
1036 bool is_vf
, bool is_netdev
)
1038 struct i40e_mac_filter
*f
;
1040 if (!vsi
|| !macaddr
)
1043 list_for_each_entry(f
, &vsi
->mac_filter_list
, list
) {
1044 if ((ether_addr_equal(macaddr
, f
->macaddr
)) &&
1045 (!is_vf
|| f
->is_vf
) &&
1046 (!is_netdev
|| f
->is_netdev
))
1053 * i40e_is_vsi_in_vlan - Check if VSI is in vlan mode
1054 * @vsi: the VSI to be searched
1056 * Returns true if VSI is in vlan mode or false otherwise
1058 bool i40e_is_vsi_in_vlan(struct i40e_vsi
*vsi
)
1060 struct i40e_mac_filter
*f
;
1062 /* Only -1 for all the filters denotes not in vlan mode
1063 * so we have to go through all the list in order to make sure
1065 list_for_each_entry(f
, &vsi
->mac_filter_list
, list
) {
1074 * i40e_put_mac_in_vlan - Make macvlan filters from macaddrs and vlans
1075 * @vsi: the VSI to be searched
1076 * @macaddr: the mac address to be filtered
1077 * @is_vf: true if it is a vf
1078 * @is_netdev: true if it is a netdev
1080 * Goes through all the macvlan filters and adds a
1081 * macvlan filter for each unique vlan that already exists
1083 * Returns first filter found on success, else NULL
1085 struct i40e_mac_filter
*i40e_put_mac_in_vlan(struct i40e_vsi
*vsi
, u8
*macaddr
,
1086 bool is_vf
, bool is_netdev
)
1088 struct i40e_mac_filter
*f
;
1090 list_for_each_entry(f
, &vsi
->mac_filter_list
, list
) {
1091 if (!i40e_find_filter(vsi
, macaddr
, f
->vlan
,
1092 is_vf
, is_netdev
)) {
1093 if (!i40e_add_filter(vsi
, macaddr
, f
->vlan
,
1099 return list_first_entry_or_null(&vsi
->mac_filter_list
,
1100 struct i40e_mac_filter
, list
);
1104 * i40e_add_filter - Add a mac/vlan filter to the VSI
1105 * @vsi: the VSI to be searched
1106 * @macaddr: the MAC address
1108 * @is_vf: make sure its a vf filter, else doesn't matter
1109 * @is_netdev: make sure its a netdev filter, else doesn't matter
1111 * Returns ptr to the filter object or NULL when no memory available.
1113 struct i40e_mac_filter
*i40e_add_filter(struct i40e_vsi
*vsi
,
1114 u8
*macaddr
, s16 vlan
,
1115 bool is_vf
, bool is_netdev
)
1117 struct i40e_mac_filter
*f
;
1119 if (!vsi
|| !macaddr
)
1122 f
= i40e_find_filter(vsi
, macaddr
, vlan
, is_vf
, is_netdev
);
1124 f
= kzalloc(sizeof(*f
), GFP_ATOMIC
);
1126 goto add_filter_out
;
1128 memcpy(f
->macaddr
, macaddr
, ETH_ALEN
);
1132 INIT_LIST_HEAD(&f
->list
);
1133 list_add(&f
->list
, &vsi
->mac_filter_list
);
1136 /* increment counter and add a new flag if needed */
1142 } else if (is_netdev
) {
1143 if (!f
->is_netdev
) {
1144 f
->is_netdev
= true;
1151 /* changed tells sync_filters_subtask to
1152 * push the filter down to the firmware
1155 vsi
->flags
|= I40E_VSI_FLAG_FILTER_CHANGED
;
1156 vsi
->back
->flags
|= I40E_FLAG_FILTER_SYNC
;
1164 * i40e_del_filter - Remove a mac/vlan filter from the VSI
1165 * @vsi: the VSI to be searched
1166 * @macaddr: the MAC address
1168 * @is_vf: make sure it's a vf filter, else doesn't matter
1169 * @is_netdev: make sure it's a netdev filter, else doesn't matter
1171 void i40e_del_filter(struct i40e_vsi
*vsi
,
1172 u8
*macaddr
, s16 vlan
,
1173 bool is_vf
, bool is_netdev
)
1175 struct i40e_mac_filter
*f
;
1177 if (!vsi
|| !macaddr
)
1180 f
= i40e_find_filter(vsi
, macaddr
, vlan
, is_vf
, is_netdev
);
1181 if (!f
|| f
->counter
== 0)
1189 } else if (is_netdev
) {
1191 f
->is_netdev
= false;
1195 /* make sure we don't remove a filter in use by vf or netdev */
1197 min_f
+= (f
->is_vf
? 1 : 0);
1198 min_f
+= (f
->is_netdev
? 1 : 0);
1200 if (f
->counter
> min_f
)
1204 /* counter == 0 tells sync_filters_subtask to
1205 * remove the filter from the firmware's list
1207 if (f
->counter
== 0) {
1209 vsi
->flags
|= I40E_VSI_FLAG_FILTER_CHANGED
;
1210 vsi
->back
->flags
|= I40E_FLAG_FILTER_SYNC
;
1215 * i40e_set_mac - NDO callback to set mac address
1216 * @netdev: network interface device structure
1217 * @p: pointer to an address structure
1219 * Returns 0 on success, negative on failure
1221 static int i40e_set_mac(struct net_device
*netdev
, void *p
)
1223 struct i40e_netdev_priv
*np
= netdev_priv(netdev
);
1224 struct i40e_vsi
*vsi
= np
->vsi
;
1225 struct sockaddr
*addr
= p
;
1226 struct i40e_mac_filter
*f
;
1228 if (!is_valid_ether_addr(addr
->sa_data
))
1229 return -EADDRNOTAVAIL
;
1231 netdev_info(netdev
, "set mac address=%pM\n", addr
->sa_data
);
1233 if (ether_addr_equal(netdev
->dev_addr
, addr
->sa_data
))
1236 if (test_bit(__I40E_DOWN
, &vsi
->back
->state
) ||
1237 test_bit(__I40E_RESET_RECOVERY_PENDING
, &vsi
->back
->state
))
1238 return -EADDRNOTAVAIL
;
1240 if (vsi
->type
== I40E_VSI_MAIN
) {
1242 ret
= i40e_aq_mac_address_write(&vsi
->back
->hw
,
1243 I40E_AQC_WRITE_TYPE_LAA_ONLY
,
1244 addr
->sa_data
, NULL
);
1247 "Addr change for Main VSI failed: %d\n",
1249 return -EADDRNOTAVAIL
;
1252 memcpy(vsi
->back
->hw
.mac
.addr
, addr
->sa_data
, netdev
->addr_len
);
1255 /* In order to be sure to not drop any packets, add the new address
1256 * then delete the old one.
1258 f
= i40e_add_filter(vsi
, addr
->sa_data
, I40E_VLAN_ANY
, false, false);
1262 i40e_sync_vsi_filters(vsi
);
1263 i40e_del_filter(vsi
, netdev
->dev_addr
, I40E_VLAN_ANY
, false, false);
1264 i40e_sync_vsi_filters(vsi
);
1266 memcpy(netdev
->dev_addr
, addr
->sa_data
, netdev
->addr_len
);
1272 * i40e_vsi_setup_queue_map - Setup a VSI queue map based on enabled_tc
1273 * @vsi: the VSI being setup
1274 * @ctxt: VSI context structure
1275 * @enabled_tc: Enabled TCs bitmap
1276 * @is_add: True if called before Add VSI
1278 * Setup VSI queue mapping for enabled traffic classes.
1280 static void i40e_vsi_setup_queue_map(struct i40e_vsi
*vsi
,
1281 struct i40e_vsi_context
*ctxt
,
1285 struct i40e_pf
*pf
= vsi
->back
;
1295 sections
= I40E_AQ_VSI_PROP_QUEUE_MAP_VALID
;
1298 if (enabled_tc
&& (vsi
->back
->flags
& I40E_FLAG_DCB_ENABLED
)) {
1299 /* Find numtc from enabled TC bitmap */
1300 for (i
= 0; i
< I40E_MAX_TRAFFIC_CLASS
; i
++) {
1301 if (enabled_tc
& (1 << i
)) /* TC is enabled */
1305 dev_warn(&pf
->pdev
->dev
, "DCB is enabled but no TC enabled, forcing TC0\n");
1309 /* At least TC0 is enabled in case of non-DCB case */
1313 vsi
->tc_config
.numtc
= numtc
;
1314 vsi
->tc_config
.enabled_tc
= enabled_tc
? enabled_tc
: 1;
1315 /* Number of queues per enabled TC */
1316 num_tc_qps
= rounddown_pow_of_two(vsi
->alloc_queue_pairs
/numtc
);
1317 num_tc_qps
= min_t(int, num_tc_qps
, I40E_MAX_QUEUES_PER_TC
);
1319 /* Setup queue offset/count for all TCs for given VSI */
1320 for (i
= 0; i
< I40E_MAX_TRAFFIC_CLASS
; i
++) {
1321 /* See if the given TC is enabled for the given VSI */
1322 if (vsi
->tc_config
.enabled_tc
& (1 << i
)) { /* TC is enabled */
1325 switch (vsi
->type
) {
1327 qcount
= min_t(int, pf
->rss_size
, num_tc_qps
);
1330 case I40E_VSI_SRIOV
:
1331 case I40E_VSI_VMDQ2
:
1333 qcount
= num_tc_qps
;
1337 vsi
->tc_config
.tc_info
[i
].qoffset
= offset
;
1338 vsi
->tc_config
.tc_info
[i
].qcount
= qcount
;
1340 /* find the power-of-2 of the number of queue pairs */
1343 while (num_qps
&& ((1 << pow
) < qcount
)) {
1348 vsi
->tc_config
.tc_info
[i
].netdev_tc
= netdev_tc
++;
1350 (offset
<< I40E_AQ_VSI_TC_QUE_OFFSET_SHIFT
) |
1351 (pow
<< I40E_AQ_VSI_TC_QUE_NUMBER_SHIFT
);
1355 /* TC is not enabled so set the offset to
1356 * default queue and allocate one queue
1359 vsi
->tc_config
.tc_info
[i
].qoffset
= 0;
1360 vsi
->tc_config
.tc_info
[i
].qcount
= 1;
1361 vsi
->tc_config
.tc_info
[i
].netdev_tc
= 0;
1365 ctxt
->info
.tc_mapping
[i
] = cpu_to_le16(qmap
);
1368 /* Set actual Tx/Rx queue pairs */
1369 vsi
->num_queue_pairs
= offset
;
1371 /* Scheduler section valid can only be set for ADD VSI */
1373 sections
|= I40E_AQ_VSI_PROP_SCHED_VALID
;
1375 ctxt
->info
.up_enable_bits
= enabled_tc
;
1377 if (vsi
->type
== I40E_VSI_SRIOV
) {
1378 ctxt
->info
.mapping_flags
|=
1379 cpu_to_le16(I40E_AQ_VSI_QUE_MAP_NONCONTIG
);
1380 for (i
= 0; i
< vsi
->num_queue_pairs
; i
++)
1381 ctxt
->info
.queue_mapping
[i
] =
1382 cpu_to_le16(vsi
->base_queue
+ i
);
1384 ctxt
->info
.mapping_flags
|=
1385 cpu_to_le16(I40E_AQ_VSI_QUE_MAP_CONTIG
);
1386 ctxt
->info
.queue_mapping
[0] = cpu_to_le16(vsi
->base_queue
);
1388 ctxt
->info
.valid_sections
|= cpu_to_le16(sections
);
1392 * i40e_set_rx_mode - NDO callback to set the netdev filters
1393 * @netdev: network interface device structure
1395 static void i40e_set_rx_mode(struct net_device
*netdev
)
1397 struct i40e_netdev_priv
*np
= netdev_priv(netdev
);
1398 struct i40e_mac_filter
*f
, *ftmp
;
1399 struct i40e_vsi
*vsi
= np
->vsi
;
1400 struct netdev_hw_addr
*uca
;
1401 struct netdev_hw_addr
*mca
;
1402 struct netdev_hw_addr
*ha
;
1404 /* add addr if not already in the filter list */
1405 netdev_for_each_uc_addr(uca
, netdev
) {
1406 if (!i40e_find_mac(vsi
, uca
->addr
, false, true)) {
1407 if (i40e_is_vsi_in_vlan(vsi
))
1408 i40e_put_mac_in_vlan(vsi
, uca
->addr
,
1411 i40e_add_filter(vsi
, uca
->addr
, I40E_VLAN_ANY
,
1416 netdev_for_each_mc_addr(mca
, netdev
) {
1417 if (!i40e_find_mac(vsi
, mca
->addr
, false, true)) {
1418 if (i40e_is_vsi_in_vlan(vsi
))
1419 i40e_put_mac_in_vlan(vsi
, mca
->addr
,
1422 i40e_add_filter(vsi
, mca
->addr
, I40E_VLAN_ANY
,
1427 /* remove filter if not in netdev list */
1428 list_for_each_entry_safe(f
, ftmp
, &vsi
->mac_filter_list
, list
) {
1434 if (is_multicast_ether_addr(f
->macaddr
)) {
1435 netdev_for_each_mc_addr(mca
, netdev
) {
1436 if (ether_addr_equal(mca
->addr
, f
->macaddr
)) {
1442 netdev_for_each_uc_addr(uca
, netdev
) {
1443 if (ether_addr_equal(uca
->addr
, f
->macaddr
)) {
1449 for_each_dev_addr(netdev
, ha
) {
1450 if (ether_addr_equal(ha
->addr
, f
->macaddr
)) {
1458 vsi
, f
->macaddr
, I40E_VLAN_ANY
, false, true);
1461 /* check for other flag changes */
1462 if (vsi
->current_netdev_flags
!= vsi
->netdev
->flags
) {
1463 vsi
->flags
|= I40E_VSI_FLAG_FILTER_CHANGED
;
1464 vsi
->back
->flags
|= I40E_FLAG_FILTER_SYNC
;
1469 * i40e_sync_vsi_filters - Update the VSI filter list to the HW
1470 * @vsi: ptr to the VSI
1472 * Push any outstanding VSI filter changes through the AdminQ.
1474 * Returns 0 or error value
1476 int i40e_sync_vsi_filters(struct i40e_vsi
*vsi
)
1478 struct i40e_mac_filter
*f
, *ftmp
;
1479 bool promisc_forced_on
= false;
1480 bool add_happened
= false;
1481 int filter_list_len
= 0;
1482 u32 changed_flags
= 0;
1483 i40e_status aq_ret
= 0;
1489 /* empty array typed pointers, kcalloc later */
1490 struct i40e_aqc_add_macvlan_element_data
*add_list
;
1491 struct i40e_aqc_remove_macvlan_element_data
*del_list
;
1493 while (test_and_set_bit(__I40E_CONFIG_BUSY
, &vsi
->state
))
1494 usleep_range(1000, 2000);
1498 changed_flags
= vsi
->current_netdev_flags
^ vsi
->netdev
->flags
;
1499 vsi
->current_netdev_flags
= vsi
->netdev
->flags
;
1502 if (vsi
->flags
& I40E_VSI_FLAG_FILTER_CHANGED
) {
1503 vsi
->flags
&= ~I40E_VSI_FLAG_FILTER_CHANGED
;
1505 filter_list_len
= pf
->hw
.aq
.asq_buf_size
/
1506 sizeof(struct i40e_aqc_remove_macvlan_element_data
);
1507 del_list
= kcalloc(filter_list_len
,
1508 sizeof(struct i40e_aqc_remove_macvlan_element_data
),
1513 list_for_each_entry_safe(f
, ftmp
, &vsi
->mac_filter_list
, list
) {
1517 if (f
->counter
!= 0)
1522 /* add to delete list */
1523 memcpy(del_list
[num_del
].mac_addr
,
1524 f
->macaddr
, ETH_ALEN
);
1525 del_list
[num_del
].vlan_tag
=
1526 cpu_to_le16((u16
)(f
->vlan
==
1527 I40E_VLAN_ANY
? 0 : f
->vlan
));
1529 cmd_flags
|= I40E_AQC_MACVLAN_DEL_PERFECT_MATCH
;
1530 del_list
[num_del
].flags
= cmd_flags
;
1533 /* unlink from filter list */
1537 /* flush a full buffer */
1538 if (num_del
== filter_list_len
) {
1539 aq_ret
= i40e_aq_remove_macvlan(&pf
->hw
,
1540 vsi
->seid
, del_list
, num_del
,
1543 memset(del_list
, 0, sizeof(*del_list
));
1546 dev_info(&pf
->pdev
->dev
,
1547 "ignoring delete macvlan error, err %d, aq_err %d while flushing a full buffer\n",
1549 pf
->hw
.aq
.asq_last_status
);
1553 aq_ret
= i40e_aq_remove_macvlan(&pf
->hw
, vsi
->seid
,
1554 del_list
, num_del
, NULL
);
1558 dev_info(&pf
->pdev
->dev
,
1559 "ignoring delete macvlan error, err %d, aq_err %d\n",
1560 aq_ret
, pf
->hw
.aq
.asq_last_status
);
1566 /* do all the adds now */
1567 filter_list_len
= pf
->hw
.aq
.asq_buf_size
/
1568 sizeof(struct i40e_aqc_add_macvlan_element_data
),
1569 add_list
= kcalloc(filter_list_len
,
1570 sizeof(struct i40e_aqc_add_macvlan_element_data
),
1575 list_for_each_entry_safe(f
, ftmp
, &vsi
->mac_filter_list
, list
) {
1579 if (f
->counter
== 0)
1582 add_happened
= true;
1585 /* add to add array */
1586 memcpy(add_list
[num_add
].mac_addr
,
1587 f
->macaddr
, ETH_ALEN
);
1588 add_list
[num_add
].vlan_tag
=
1590 (u16
)(f
->vlan
== I40E_VLAN_ANY
? 0 : f
->vlan
));
1591 add_list
[num_add
].queue_number
= 0;
1593 cmd_flags
|= I40E_AQC_MACVLAN_ADD_PERFECT_MATCH
;
1594 add_list
[num_add
].flags
= cpu_to_le16(cmd_flags
);
1597 /* flush a full buffer */
1598 if (num_add
== filter_list_len
) {
1599 aq_ret
= i40e_aq_add_macvlan(&pf
->hw
, vsi
->seid
,
1606 memset(add_list
, 0, sizeof(*add_list
));
1610 aq_ret
= i40e_aq_add_macvlan(&pf
->hw
, vsi
->seid
,
1611 add_list
, num_add
, NULL
);
1617 if (add_happened
&& (!aq_ret
)) {
1619 } else if (add_happened
&& (aq_ret
)) {
1620 dev_info(&pf
->pdev
->dev
,
1621 "add filter failed, err %d, aq_err %d\n",
1622 aq_ret
, pf
->hw
.aq
.asq_last_status
);
1623 if ((pf
->hw
.aq
.asq_last_status
== I40E_AQ_RC_ENOSPC
) &&
1624 !test_bit(__I40E_FILTER_OVERFLOW_PROMISC
,
1626 promisc_forced_on
= true;
1627 set_bit(__I40E_FILTER_OVERFLOW_PROMISC
,
1629 dev_info(&pf
->pdev
->dev
, "promiscuous mode forced on\n");
1634 /* check for changes in promiscuous modes */
1635 if (changed_flags
& IFF_ALLMULTI
) {
1636 bool cur_multipromisc
;
1637 cur_multipromisc
= !!(vsi
->current_netdev_flags
& IFF_ALLMULTI
);
1638 aq_ret
= i40e_aq_set_vsi_multicast_promiscuous(&vsi
->back
->hw
,
1643 dev_info(&pf
->pdev
->dev
,
1644 "set multi promisc failed, err %d, aq_err %d\n",
1645 aq_ret
, pf
->hw
.aq
.asq_last_status
);
1647 if ((changed_flags
& IFF_PROMISC
) || promisc_forced_on
) {
1649 cur_promisc
= (!!(vsi
->current_netdev_flags
& IFF_PROMISC
) ||
1650 test_bit(__I40E_FILTER_OVERFLOW_PROMISC
,
1652 aq_ret
= i40e_aq_set_vsi_unicast_promiscuous(&vsi
->back
->hw
,
1656 dev_info(&pf
->pdev
->dev
,
1657 "set uni promisc failed, err %d, aq_err %d\n",
1658 aq_ret
, pf
->hw
.aq
.asq_last_status
);
1659 aq_ret
= i40e_aq_set_vsi_broadcast(&vsi
->back
->hw
,
1663 dev_info(&pf
->pdev
->dev
,
1664 "set brdcast promisc failed, err %d, aq_err %d\n",
1665 aq_ret
, pf
->hw
.aq
.asq_last_status
);
1668 clear_bit(__I40E_CONFIG_BUSY
, &vsi
->state
);
1673 * i40e_sync_filters_subtask - Sync the VSI filter list with HW
1674 * @pf: board private structure
1676 static void i40e_sync_filters_subtask(struct i40e_pf
*pf
)
1680 if (!pf
|| !(pf
->flags
& I40E_FLAG_FILTER_SYNC
))
1682 pf
->flags
&= ~I40E_FLAG_FILTER_SYNC
;
1684 for (v
= 0; v
< pf
->hw
.func_caps
.num_vsis
; v
++) {
1686 (pf
->vsi
[v
]->flags
& I40E_VSI_FLAG_FILTER_CHANGED
))
1687 i40e_sync_vsi_filters(pf
->vsi
[v
]);
1692 * i40e_change_mtu - NDO callback to change the Maximum Transfer Unit
1693 * @netdev: network interface device structure
1694 * @new_mtu: new value for maximum frame size
1696 * Returns 0 on success, negative on failure
1698 static int i40e_change_mtu(struct net_device
*netdev
, int new_mtu
)
1700 struct i40e_netdev_priv
*np
= netdev_priv(netdev
);
1701 int max_frame
= new_mtu
+ ETH_HLEN
+ ETH_FCS_LEN
;
1702 struct i40e_vsi
*vsi
= np
->vsi
;
1704 /* MTU < 68 is an error and causes problems on some kernels */
1705 if ((new_mtu
< 68) || (max_frame
> I40E_MAX_RXBUFFER
))
1708 netdev_info(netdev
, "changing MTU from %d to %d\n",
1709 netdev
->mtu
, new_mtu
);
1710 netdev
->mtu
= new_mtu
;
1711 if (netif_running(netdev
))
1712 i40e_vsi_reinit_locked(vsi
);
1718 * i40e_ioctl - Access the hwtstamp interface
1719 * @netdev: network interface device structure
1720 * @ifr: interface request data
1721 * @cmd: ioctl command
1723 int i40e_ioctl(struct net_device
*netdev
, struct ifreq
*ifr
, int cmd
)
1725 struct i40e_netdev_priv
*np
= netdev_priv(netdev
);
1726 struct i40e_pf
*pf
= np
->vsi
->back
;
1730 return i40e_ptp_get_ts_config(pf
, ifr
);
1732 return i40e_ptp_set_ts_config(pf
, ifr
);
1739 * i40e_vlan_stripping_enable - Turn on vlan stripping for the VSI
1740 * @vsi: the vsi being adjusted
1742 void i40e_vlan_stripping_enable(struct i40e_vsi
*vsi
)
1744 struct i40e_vsi_context ctxt
;
1747 if ((vsi
->info
.valid_sections
&
1748 cpu_to_le16(I40E_AQ_VSI_PROP_VLAN_VALID
)) &&
1749 ((vsi
->info
.port_vlan_flags
& I40E_AQ_VSI_PVLAN_MODE_MASK
) == 0))
1750 return; /* already enabled */
1752 vsi
->info
.valid_sections
= cpu_to_le16(I40E_AQ_VSI_PROP_VLAN_VALID
);
1753 vsi
->info
.port_vlan_flags
= I40E_AQ_VSI_PVLAN_MODE_ALL
|
1754 I40E_AQ_VSI_PVLAN_EMOD_STR_BOTH
;
1756 ctxt
.seid
= vsi
->seid
;
1757 memcpy(&ctxt
.info
, &vsi
->info
, sizeof(vsi
->info
));
1758 ret
= i40e_aq_update_vsi_params(&vsi
->back
->hw
, &ctxt
, NULL
);
1760 dev_info(&vsi
->back
->pdev
->dev
,
1761 "%s: update vsi failed, aq_err=%d\n",
1762 __func__
, vsi
->back
->hw
.aq
.asq_last_status
);
1767 * i40e_vlan_stripping_disable - Turn off vlan stripping for the VSI
1768 * @vsi: the vsi being adjusted
1770 void i40e_vlan_stripping_disable(struct i40e_vsi
*vsi
)
1772 struct i40e_vsi_context ctxt
;
1775 if ((vsi
->info
.valid_sections
&
1776 cpu_to_le16(I40E_AQ_VSI_PROP_VLAN_VALID
)) &&
1777 ((vsi
->info
.port_vlan_flags
& I40E_AQ_VSI_PVLAN_EMOD_MASK
) ==
1778 I40E_AQ_VSI_PVLAN_EMOD_MASK
))
1779 return; /* already disabled */
1781 vsi
->info
.valid_sections
= cpu_to_le16(I40E_AQ_VSI_PROP_VLAN_VALID
);
1782 vsi
->info
.port_vlan_flags
= I40E_AQ_VSI_PVLAN_MODE_ALL
|
1783 I40E_AQ_VSI_PVLAN_EMOD_NOTHING
;
1785 ctxt
.seid
= vsi
->seid
;
1786 memcpy(&ctxt
.info
, &vsi
->info
, sizeof(vsi
->info
));
1787 ret
= i40e_aq_update_vsi_params(&vsi
->back
->hw
, &ctxt
, NULL
);
1789 dev_info(&vsi
->back
->pdev
->dev
,
1790 "%s: update vsi failed, aq_err=%d\n",
1791 __func__
, vsi
->back
->hw
.aq
.asq_last_status
);
1796 * i40e_vlan_rx_register - Setup or shutdown vlan offload
1797 * @netdev: network interface to be adjusted
1798 * @features: netdev features to test if VLAN offload is enabled or not
1800 static void i40e_vlan_rx_register(struct net_device
*netdev
, u32 features
)
1802 struct i40e_netdev_priv
*np
= netdev_priv(netdev
);
1803 struct i40e_vsi
*vsi
= np
->vsi
;
1805 if (features
& NETIF_F_HW_VLAN_CTAG_RX
)
1806 i40e_vlan_stripping_enable(vsi
);
1808 i40e_vlan_stripping_disable(vsi
);
1812 * i40e_vsi_add_vlan - Add vsi membership for given vlan
1813 * @vsi: the vsi being configured
1814 * @vid: vlan id to be added (0 = untagged only , -1 = any)
1816 int i40e_vsi_add_vlan(struct i40e_vsi
*vsi
, s16 vid
)
1818 struct i40e_mac_filter
*f
, *add_f
;
1819 bool is_netdev
, is_vf
;
1821 is_vf
= (vsi
->type
== I40E_VSI_SRIOV
);
1822 is_netdev
= !!(vsi
->netdev
);
1825 add_f
= i40e_add_filter(vsi
, vsi
->netdev
->dev_addr
, vid
,
1828 dev_info(&vsi
->back
->pdev
->dev
,
1829 "Could not add vlan filter %d for %pM\n",
1830 vid
, vsi
->netdev
->dev_addr
);
1835 list_for_each_entry(f
, &vsi
->mac_filter_list
, list
) {
1836 add_f
= i40e_add_filter(vsi
, f
->macaddr
, vid
, is_vf
, is_netdev
);
1838 dev_info(&vsi
->back
->pdev
->dev
,
1839 "Could not add vlan filter %d for %pM\n",
1845 /* Now if we add a vlan tag, make sure to check if it is the first
1846 * tag (i.e. a "tag" -1 does exist) and if so replace the -1 "tag"
1847 * with 0, so we now accept untagged and specified tagged traffic
1848 * (and not any taged and untagged)
1851 if (is_netdev
&& i40e_find_filter(vsi
, vsi
->netdev
->dev_addr
,
1853 is_vf
, is_netdev
)) {
1854 i40e_del_filter(vsi
, vsi
->netdev
->dev_addr
,
1855 I40E_VLAN_ANY
, is_vf
, is_netdev
);
1856 add_f
= i40e_add_filter(vsi
, vsi
->netdev
->dev_addr
, 0,
1859 dev_info(&vsi
->back
->pdev
->dev
,
1860 "Could not add filter 0 for %pM\n",
1861 vsi
->netdev
->dev_addr
);
1867 /* Do not assume that I40E_VLAN_ANY should be reset to VLAN 0 */
1868 if (vid
> 0 && !vsi
->info
.pvid
) {
1869 list_for_each_entry(f
, &vsi
->mac_filter_list
, list
) {
1870 if (i40e_find_filter(vsi
, f
->macaddr
, I40E_VLAN_ANY
,
1871 is_vf
, is_netdev
)) {
1872 i40e_del_filter(vsi
, f
->macaddr
, I40E_VLAN_ANY
,
1874 add_f
= i40e_add_filter(vsi
, f
->macaddr
,
1875 0, is_vf
, is_netdev
);
1877 dev_info(&vsi
->back
->pdev
->dev
,
1878 "Could not add filter 0 for %pM\n",
1886 if (test_bit(__I40E_DOWN
, &vsi
->back
->state
) ||
1887 test_bit(__I40E_RESET_RECOVERY_PENDING
, &vsi
->back
->state
))
1890 return i40e_sync_vsi_filters(vsi
);
1894 * i40e_vsi_kill_vlan - Remove vsi membership for given vlan
1895 * @vsi: the vsi being configured
1896 * @vid: vlan id to be removed (0 = untagged only , -1 = any)
1898 * Return: 0 on success or negative otherwise
1900 int i40e_vsi_kill_vlan(struct i40e_vsi
*vsi
, s16 vid
)
1902 struct net_device
*netdev
= vsi
->netdev
;
1903 struct i40e_mac_filter
*f
, *add_f
;
1904 bool is_vf
, is_netdev
;
1905 int filter_count
= 0;
1907 is_vf
= (vsi
->type
== I40E_VSI_SRIOV
);
1908 is_netdev
= !!(netdev
);
1911 i40e_del_filter(vsi
, netdev
->dev_addr
, vid
, is_vf
, is_netdev
);
1913 list_for_each_entry(f
, &vsi
->mac_filter_list
, list
)
1914 i40e_del_filter(vsi
, f
->macaddr
, vid
, is_vf
, is_netdev
);
1916 /* go through all the filters for this VSI and if there is only
1917 * vid == 0 it means there are no other filters, so vid 0 must
1918 * be replaced with -1. This signifies that we should from now
1919 * on accept any traffic (with any tag present, or untagged)
1921 list_for_each_entry(f
, &vsi
->mac_filter_list
, list
) {
1924 ether_addr_equal(netdev
->dev_addr
, f
->macaddr
))
1932 if (!filter_count
&& is_netdev
) {
1933 i40e_del_filter(vsi
, netdev
->dev_addr
, 0, is_vf
, is_netdev
);
1934 f
= i40e_add_filter(vsi
, netdev
->dev_addr
, I40E_VLAN_ANY
,
1937 dev_info(&vsi
->back
->pdev
->dev
,
1938 "Could not add filter %d for %pM\n",
1939 I40E_VLAN_ANY
, netdev
->dev_addr
);
1944 if (!filter_count
) {
1945 list_for_each_entry(f
, &vsi
->mac_filter_list
, list
) {
1946 i40e_del_filter(vsi
, f
->macaddr
, 0, is_vf
, is_netdev
);
1947 add_f
= i40e_add_filter(vsi
, f
->macaddr
, I40E_VLAN_ANY
,
1950 dev_info(&vsi
->back
->pdev
->dev
,
1951 "Could not add filter %d for %pM\n",
1952 I40E_VLAN_ANY
, f
->macaddr
);
1958 if (test_bit(__I40E_DOWN
, &vsi
->back
->state
) ||
1959 test_bit(__I40E_RESET_RECOVERY_PENDING
, &vsi
->back
->state
))
1962 return i40e_sync_vsi_filters(vsi
);
1966 * i40e_vlan_rx_add_vid - Add a vlan id filter to HW offload
1967 * @netdev: network interface to be adjusted
1968 * @vid: vlan id to be added
1970 * net_device_ops implementation for adding vlan ids
1972 static int i40e_vlan_rx_add_vid(struct net_device
*netdev
,
1973 __always_unused __be16 proto
, u16 vid
)
1975 struct i40e_netdev_priv
*np
= netdev_priv(netdev
);
1976 struct i40e_vsi
*vsi
= np
->vsi
;
1982 netdev_info(netdev
, "adding %pM vid=%d\n", netdev
->dev_addr
, vid
);
1984 /* If the network stack called us with vid = 0 then
1985 * it is asking to receive priority tagged packets with
1986 * vlan id 0. Our HW receives them by default when configured
1987 * to receive untagged packets so there is no need to add an
1988 * extra filter for vlan 0 tagged packets.
1991 ret
= i40e_vsi_add_vlan(vsi
, vid
);
1993 if (!ret
&& (vid
< VLAN_N_VID
))
1994 set_bit(vid
, vsi
->active_vlans
);
2000 * i40e_vlan_rx_kill_vid - Remove a vlan id filter from HW offload
2001 * @netdev: network interface to be adjusted
2002 * @vid: vlan id to be removed
2004 * net_device_ops implementation for removing vlan ids
2006 static int i40e_vlan_rx_kill_vid(struct net_device
*netdev
,
2007 __always_unused __be16 proto
, u16 vid
)
2009 struct i40e_netdev_priv
*np
= netdev_priv(netdev
);
2010 struct i40e_vsi
*vsi
= np
->vsi
;
2012 netdev_info(netdev
, "removing %pM vid=%d\n", netdev
->dev_addr
, vid
);
2014 /* return code is ignored as there is nothing a user
2015 * can do about failure to remove and a log message was
2016 * already printed from the other function
2018 i40e_vsi_kill_vlan(vsi
, vid
);
2020 clear_bit(vid
, vsi
->active_vlans
);
2026 * i40e_restore_vlan - Reinstate vlans when vsi/netdev comes back up
2027 * @vsi: the vsi being brought back up
2029 static void i40e_restore_vlan(struct i40e_vsi
*vsi
)
2036 i40e_vlan_rx_register(vsi
->netdev
, vsi
->netdev
->features
);
2038 for_each_set_bit(vid
, vsi
->active_vlans
, VLAN_N_VID
)
2039 i40e_vlan_rx_add_vid(vsi
->netdev
, htons(ETH_P_8021Q
),
2044 * i40e_vsi_add_pvid - Add pvid for the VSI
2045 * @vsi: the vsi being adjusted
2046 * @vid: the vlan id to set as a PVID
2048 int i40e_vsi_add_pvid(struct i40e_vsi
*vsi
, u16 vid
)
2050 struct i40e_vsi_context ctxt
;
2053 vsi
->info
.valid_sections
= cpu_to_le16(I40E_AQ_VSI_PROP_VLAN_VALID
);
2054 vsi
->info
.pvid
= cpu_to_le16(vid
);
2055 vsi
->info
.port_vlan_flags
= I40E_AQ_VSI_PVLAN_MODE_TAGGED
|
2056 I40E_AQ_VSI_PVLAN_INSERT_PVID
|
2057 I40E_AQ_VSI_PVLAN_EMOD_STR
;
2059 ctxt
.seid
= vsi
->seid
;
2060 memcpy(&ctxt
.info
, &vsi
->info
, sizeof(vsi
->info
));
2061 aq_ret
= i40e_aq_update_vsi_params(&vsi
->back
->hw
, &ctxt
, NULL
);
2063 dev_info(&vsi
->back
->pdev
->dev
,
2064 "%s: update vsi failed, aq_err=%d\n",
2065 __func__
, vsi
->back
->hw
.aq
.asq_last_status
);
2073 * i40e_vsi_remove_pvid - Remove the pvid from the VSI
2074 * @vsi: the vsi being adjusted
2076 * Just use the vlan_rx_register() service to put it back to normal
2078 void i40e_vsi_remove_pvid(struct i40e_vsi
*vsi
)
2080 i40e_vlan_stripping_disable(vsi
);
2086 * i40e_vsi_setup_tx_resources - Allocate VSI Tx queue resources
2087 * @vsi: ptr to the VSI
2089 * If this function returns with an error, then it's possible one or
2090 * more of the rings is populated (while the rest are not). It is the
2091 * callers duty to clean those orphaned rings.
2093 * Return 0 on success, negative on failure
2095 static int i40e_vsi_setup_tx_resources(struct i40e_vsi
*vsi
)
2099 for (i
= 0; i
< vsi
->num_queue_pairs
&& !err
; i
++)
2100 err
= i40e_setup_tx_descriptors(vsi
->tx_rings
[i
]);
2106 * i40e_vsi_free_tx_resources - Free Tx resources for VSI queues
2107 * @vsi: ptr to the VSI
2109 * Free VSI's transmit software resources
2111 static void i40e_vsi_free_tx_resources(struct i40e_vsi
*vsi
)
2118 for (i
= 0; i
< vsi
->num_queue_pairs
; i
++)
2119 if (vsi
->tx_rings
[i
] && vsi
->tx_rings
[i
]->desc
)
2120 i40e_free_tx_resources(vsi
->tx_rings
[i
]);
2124 * i40e_vsi_setup_rx_resources - Allocate VSI queues Rx resources
2125 * @vsi: ptr to the VSI
2127 * If this function returns with an error, then it's possible one or
2128 * more of the rings is populated (while the rest are not). It is the
2129 * callers duty to clean those orphaned rings.
2131 * Return 0 on success, negative on failure
2133 static int i40e_vsi_setup_rx_resources(struct i40e_vsi
*vsi
)
2137 for (i
= 0; i
< vsi
->num_queue_pairs
&& !err
; i
++)
2138 err
= i40e_setup_rx_descriptors(vsi
->rx_rings
[i
]);
2143 * i40e_vsi_free_rx_resources - Free Rx Resources for VSI queues
2144 * @vsi: ptr to the VSI
2146 * Free all receive software resources
2148 static void i40e_vsi_free_rx_resources(struct i40e_vsi
*vsi
)
2155 for (i
= 0; i
< vsi
->num_queue_pairs
; i
++)
2156 if (vsi
->rx_rings
[i
] && vsi
->rx_rings
[i
]->desc
)
2157 i40e_free_rx_resources(vsi
->rx_rings
[i
]);
2161 * i40e_configure_tx_ring - Configure a transmit ring context and rest
2162 * @ring: The Tx ring to configure
2164 * Configure the Tx descriptor ring in the HMC context.
2166 static int i40e_configure_tx_ring(struct i40e_ring
*ring
)
2168 struct i40e_vsi
*vsi
= ring
->vsi
;
2169 u16 pf_q
= vsi
->base_queue
+ ring
->queue_index
;
2170 struct i40e_hw
*hw
= &vsi
->back
->hw
;
2171 struct i40e_hmc_obj_txq tx_ctx
;
2172 i40e_status err
= 0;
2175 /* some ATR related tx ring init */
2176 if (vsi
->back
->flags
& I40E_FLAG_FD_ATR_ENABLED
) {
2177 ring
->atr_sample_rate
= vsi
->back
->atr_sample_rate
;
2178 ring
->atr_count
= 0;
2180 ring
->atr_sample_rate
= 0;
2183 /* initialize XPS */
2184 if (ring
->q_vector
&& ring
->netdev
&&
2185 vsi
->tc_config
.numtc
<= 1 &&
2186 !test_and_set_bit(__I40E_TX_XPS_INIT_DONE
, &ring
->state
))
2187 netif_set_xps_queue(ring
->netdev
,
2188 &ring
->q_vector
->affinity_mask
,
2191 /* clear the context structure first */
2192 memset(&tx_ctx
, 0, sizeof(tx_ctx
));
2194 tx_ctx
.new_context
= 1;
2195 tx_ctx
.base
= (ring
->dma
/ 128);
2196 tx_ctx
.qlen
= ring
->count
;
2197 tx_ctx
.fd_ena
= !!(vsi
->back
->flags
& (I40E_FLAG_FD_SB_ENABLED
|
2198 I40E_FLAG_FD_ATR_ENABLED
));
2199 tx_ctx
.timesync_ena
= !!(vsi
->back
->flags
& I40E_FLAG_PTP
);
2200 /* FDIR VSI tx ring can still use RS bit and writebacks */
2201 if (vsi
->type
!= I40E_VSI_FDIR
)
2202 tx_ctx
.head_wb_ena
= 1;
2203 tx_ctx
.head_wb_addr
= ring
->dma
+
2204 (ring
->count
* sizeof(struct i40e_tx_desc
));
2206 /* As part of VSI creation/update, FW allocates certain
2207 * Tx arbitration queue sets for each TC enabled for
2208 * the VSI. The FW returns the handles to these queue
2209 * sets as part of the response buffer to Add VSI,
2210 * Update VSI, etc. AQ commands. It is expected that
2211 * these queue set handles be associated with the Tx
2212 * queues by the driver as part of the TX queue context
2213 * initialization. This has to be done regardless of
2214 * DCB as by default everything is mapped to TC0.
2216 tx_ctx
.rdylist
= le16_to_cpu(vsi
->info
.qs_handle
[ring
->dcb_tc
]);
2217 tx_ctx
.rdylist_act
= 0;
2219 /* clear the context in the HMC */
2220 err
= i40e_clear_lan_tx_queue_context(hw
, pf_q
);
2222 dev_info(&vsi
->back
->pdev
->dev
,
2223 "Failed to clear LAN Tx queue context on Tx ring %d (pf_q %d), error: %d\n",
2224 ring
->queue_index
, pf_q
, err
);
2228 /* set the context in the HMC */
2229 err
= i40e_set_lan_tx_queue_context(hw
, pf_q
, &tx_ctx
);
2231 dev_info(&vsi
->back
->pdev
->dev
,
2232 "Failed to set LAN Tx queue context on Tx ring %d (pf_q %d, error: %d\n",
2233 ring
->queue_index
, pf_q
, err
);
2237 /* Now associate this queue with this PCI function */
2238 if (vsi
->type
== I40E_VSI_VMDQ2
)
2239 qtx_ctl
= I40E_QTX_CTL_VM_QUEUE
;
2241 qtx_ctl
= I40E_QTX_CTL_PF_QUEUE
;
2242 qtx_ctl
|= ((hw
->pf_id
<< I40E_QTX_CTL_PF_INDX_SHIFT
) &
2243 I40E_QTX_CTL_PF_INDX_MASK
);
2244 wr32(hw
, I40E_QTX_CTL(pf_q
), qtx_ctl
);
2247 clear_bit(__I40E_HANG_CHECK_ARMED
, &ring
->state
);
2249 /* cache tail off for easier writes later */
2250 ring
->tail
= hw
->hw_addr
+ I40E_QTX_TAIL(pf_q
);
2256 * i40e_configure_rx_ring - Configure a receive ring context
2257 * @ring: The Rx ring to configure
2259 * Configure the Rx descriptor ring in the HMC context.
2261 static int i40e_configure_rx_ring(struct i40e_ring
*ring
)
2263 struct i40e_vsi
*vsi
= ring
->vsi
;
2264 u32 chain_len
= vsi
->back
->hw
.func_caps
.rx_buf_chain_len
;
2265 u16 pf_q
= vsi
->base_queue
+ ring
->queue_index
;
2266 struct i40e_hw
*hw
= &vsi
->back
->hw
;
2267 struct i40e_hmc_obj_rxq rx_ctx
;
2268 i40e_status err
= 0;
2272 /* clear the context structure first */
2273 memset(&rx_ctx
, 0, sizeof(rx_ctx
));
2275 ring
->rx_buf_len
= vsi
->rx_buf_len
;
2276 ring
->rx_hdr_len
= vsi
->rx_hdr_len
;
2278 rx_ctx
.dbuff
= ring
->rx_buf_len
>> I40E_RXQ_CTX_DBUFF_SHIFT
;
2279 rx_ctx
.hbuff
= ring
->rx_hdr_len
>> I40E_RXQ_CTX_HBUFF_SHIFT
;
2281 rx_ctx
.base
= (ring
->dma
/ 128);
2282 rx_ctx
.qlen
= ring
->count
;
2284 if (vsi
->back
->flags
& I40E_FLAG_16BYTE_RX_DESC_ENABLED
) {
2285 set_ring_16byte_desc_enabled(ring
);
2291 rx_ctx
.dtype
= vsi
->dtype
;
2293 set_ring_ps_enabled(ring
);
2294 rx_ctx
.hsplit_0
= I40E_RX_SPLIT_L2
|
2296 I40E_RX_SPLIT_TCP_UDP
|
2299 rx_ctx
.hsplit_0
= 0;
2302 rx_ctx
.rxmax
= min_t(u16
, vsi
->max_frame
,
2303 (chain_len
* ring
->rx_buf_len
));
2304 rx_ctx
.tphrdesc_ena
= 1;
2305 rx_ctx
.tphwdesc_ena
= 1;
2306 rx_ctx
.tphdata_ena
= 1;
2307 rx_ctx
.tphhead_ena
= 1;
2308 if (hw
->revision_id
== 0)
2309 rx_ctx
.lrxqthresh
= 0;
2311 rx_ctx
.lrxqthresh
= 2;
2312 rx_ctx
.crcstrip
= 1;
2316 /* clear the context in the HMC */
2317 err
= i40e_clear_lan_rx_queue_context(hw
, pf_q
);
2319 dev_info(&vsi
->back
->pdev
->dev
,
2320 "Failed to clear LAN Rx queue context on Rx ring %d (pf_q %d), error: %d\n",
2321 ring
->queue_index
, pf_q
, err
);
2325 /* set the context in the HMC */
2326 err
= i40e_set_lan_rx_queue_context(hw
, pf_q
, &rx_ctx
);
2328 dev_info(&vsi
->back
->pdev
->dev
,
2329 "Failed to set LAN Rx queue context on Rx ring %d (pf_q %d), error: %d\n",
2330 ring
->queue_index
, pf_q
, err
);
2334 /* cache tail for quicker writes, and clear the reg before use */
2335 ring
->tail
= hw
->hw_addr
+ I40E_QRX_TAIL(pf_q
);
2336 writel(0, ring
->tail
);
2338 i40e_alloc_rx_buffers(ring
, I40E_DESC_UNUSED(ring
));
2344 * i40e_vsi_configure_tx - Configure the VSI for Tx
2345 * @vsi: VSI structure describing this set of rings and resources
2347 * Configure the Tx VSI for operation.
2349 static int i40e_vsi_configure_tx(struct i40e_vsi
*vsi
)
2354 for (i
= 0; (i
< vsi
->num_queue_pairs
) && !err
; i
++)
2355 err
= i40e_configure_tx_ring(vsi
->tx_rings
[i
]);
2361 * i40e_vsi_configure_rx - Configure the VSI for Rx
2362 * @vsi: the VSI being configured
2364 * Configure the Rx VSI for operation.
2366 static int i40e_vsi_configure_rx(struct i40e_vsi
*vsi
)
2371 if (vsi
->netdev
&& (vsi
->netdev
->mtu
> ETH_DATA_LEN
))
2372 vsi
->max_frame
= vsi
->netdev
->mtu
+ ETH_HLEN
2373 + ETH_FCS_LEN
+ VLAN_HLEN
;
2375 vsi
->max_frame
= I40E_RXBUFFER_2048
;
2377 /* figure out correct receive buffer length */
2378 switch (vsi
->back
->flags
& (I40E_FLAG_RX_1BUF_ENABLED
|
2379 I40E_FLAG_RX_PS_ENABLED
)) {
2380 case I40E_FLAG_RX_1BUF_ENABLED
:
2381 vsi
->rx_hdr_len
= 0;
2382 vsi
->rx_buf_len
= vsi
->max_frame
;
2383 vsi
->dtype
= I40E_RX_DTYPE_NO_SPLIT
;
2385 case I40E_FLAG_RX_PS_ENABLED
:
2386 vsi
->rx_hdr_len
= I40E_RX_HDR_SIZE
;
2387 vsi
->rx_buf_len
= I40E_RXBUFFER_2048
;
2388 vsi
->dtype
= I40E_RX_DTYPE_HEADER_SPLIT
;
2391 vsi
->rx_hdr_len
= I40E_RX_HDR_SIZE
;
2392 vsi
->rx_buf_len
= I40E_RXBUFFER_2048
;
2393 vsi
->dtype
= I40E_RX_DTYPE_SPLIT_ALWAYS
;
2397 /* round up for the chip's needs */
2398 vsi
->rx_hdr_len
= ALIGN(vsi
->rx_hdr_len
,
2399 (1 << I40E_RXQ_CTX_HBUFF_SHIFT
));
2400 vsi
->rx_buf_len
= ALIGN(vsi
->rx_buf_len
,
2401 (1 << I40E_RXQ_CTX_DBUFF_SHIFT
));
2403 /* set up individual rings */
2404 for (i
= 0; i
< vsi
->num_queue_pairs
&& !err
; i
++)
2405 err
= i40e_configure_rx_ring(vsi
->rx_rings
[i
]);
2411 * i40e_vsi_config_dcb_rings - Update rings to reflect DCB TC
2412 * @vsi: ptr to the VSI
2414 static void i40e_vsi_config_dcb_rings(struct i40e_vsi
*vsi
)
2416 u16 qoffset
, qcount
;
2419 if (!(vsi
->back
->flags
& I40E_FLAG_DCB_ENABLED
))
2422 for (n
= 0; n
< I40E_MAX_TRAFFIC_CLASS
; n
++) {
2423 if (!(vsi
->tc_config
.enabled_tc
& (1 << n
)))
2426 qoffset
= vsi
->tc_config
.tc_info
[n
].qoffset
;
2427 qcount
= vsi
->tc_config
.tc_info
[n
].qcount
;
2428 for (i
= qoffset
; i
< (qoffset
+ qcount
); i
++) {
2429 struct i40e_ring
*rx_ring
= vsi
->rx_rings
[i
];
2430 struct i40e_ring
*tx_ring
= vsi
->tx_rings
[i
];
2431 rx_ring
->dcb_tc
= n
;
2432 tx_ring
->dcb_tc
= n
;
2438 * i40e_set_vsi_rx_mode - Call set_rx_mode on a VSI
2439 * @vsi: ptr to the VSI
2441 static void i40e_set_vsi_rx_mode(struct i40e_vsi
*vsi
)
2444 i40e_set_rx_mode(vsi
->netdev
);
2448 * i40e_fdir_filter_restore - Restore the Sideband Flow Director filters
2449 * @vsi: Pointer to the targeted VSI
2451 * This function replays the hlist on the hw where all the SB Flow Director
2452 * filters were saved.
2454 static void i40e_fdir_filter_restore(struct i40e_vsi
*vsi
)
2456 struct i40e_fdir_filter
*filter
;
2457 struct i40e_pf
*pf
= vsi
->back
;
2458 struct hlist_node
*node
;
2460 if (!(pf
->flags
& I40E_FLAG_FD_SB_ENABLED
))
2463 hlist_for_each_entry_safe(filter
, node
,
2464 &pf
->fdir_filter_list
, fdir_node
) {
2465 i40e_add_del_fdir(vsi
, filter
, true);
2470 * i40e_vsi_configure - Set up the VSI for action
2471 * @vsi: the VSI being configured
2473 static int i40e_vsi_configure(struct i40e_vsi
*vsi
)
2477 i40e_set_vsi_rx_mode(vsi
);
2478 i40e_restore_vlan(vsi
);
2479 i40e_vsi_config_dcb_rings(vsi
);
2480 err
= i40e_vsi_configure_tx(vsi
);
2482 err
= i40e_vsi_configure_rx(vsi
);
2488 * i40e_vsi_configure_msix - MSIX mode Interrupt Config in the HW
2489 * @vsi: the VSI being configured
2491 static void i40e_vsi_configure_msix(struct i40e_vsi
*vsi
)
2493 struct i40e_pf
*pf
= vsi
->back
;
2494 struct i40e_q_vector
*q_vector
;
2495 struct i40e_hw
*hw
= &pf
->hw
;
2501 /* The interrupt indexing is offset by 1 in the PFINT_ITRn
2502 * and PFINT_LNKLSTn registers, e.g.:
2503 * PFINT_ITRn[0..n-1] gets msix-1..msix-n (qpair interrupts)
2505 qp
= vsi
->base_queue
;
2506 vector
= vsi
->base_vector
;
2507 for (i
= 0; i
< vsi
->num_q_vectors
; i
++, vector
++) {
2508 q_vector
= vsi
->q_vectors
[i
];
2509 q_vector
->rx
.itr
= ITR_TO_REG(vsi
->rx_itr_setting
);
2510 q_vector
->rx
.latency_range
= I40E_LOW_LATENCY
;
2511 wr32(hw
, I40E_PFINT_ITRN(I40E_RX_ITR
, vector
- 1),
2513 q_vector
->tx
.itr
= ITR_TO_REG(vsi
->tx_itr_setting
);
2514 q_vector
->tx
.latency_range
= I40E_LOW_LATENCY
;
2515 wr32(hw
, I40E_PFINT_ITRN(I40E_TX_ITR
, vector
- 1),
2518 /* Linked list for the queuepairs assigned to this vector */
2519 wr32(hw
, I40E_PFINT_LNKLSTN(vector
- 1), qp
);
2520 for (q
= 0; q
< q_vector
->num_ringpairs
; q
++) {
2521 val
= I40E_QINT_RQCTL_CAUSE_ENA_MASK
|
2522 (I40E_RX_ITR
<< I40E_QINT_RQCTL_ITR_INDX_SHIFT
) |
2523 (vector
<< I40E_QINT_RQCTL_MSIX_INDX_SHIFT
) |
2524 (qp
<< I40E_QINT_RQCTL_NEXTQ_INDX_SHIFT
)|
2526 << I40E_QINT_RQCTL_NEXTQ_TYPE_SHIFT
);
2528 wr32(hw
, I40E_QINT_RQCTL(qp
), val
);
2530 val
= I40E_QINT_TQCTL_CAUSE_ENA_MASK
|
2531 (I40E_TX_ITR
<< I40E_QINT_TQCTL_ITR_INDX_SHIFT
) |
2532 (vector
<< I40E_QINT_TQCTL_MSIX_INDX_SHIFT
) |
2533 ((qp
+1) << I40E_QINT_TQCTL_NEXTQ_INDX_SHIFT
)|
2535 << I40E_QINT_TQCTL_NEXTQ_TYPE_SHIFT
);
2537 /* Terminate the linked list */
2538 if (q
== (q_vector
->num_ringpairs
- 1))
2539 val
|= (I40E_QUEUE_END_OF_LIST
2540 << I40E_QINT_TQCTL_NEXTQ_INDX_SHIFT
);
2542 wr32(hw
, I40E_QINT_TQCTL(qp
), val
);
2551 * i40e_enable_misc_int_causes - enable the non-queue interrupts
2552 * @hw: ptr to the hardware info
2554 static void i40e_enable_misc_int_causes(struct i40e_hw
*hw
)
2558 /* clear things first */
2559 wr32(hw
, I40E_PFINT_ICR0_ENA
, 0); /* disable all */
2560 rd32(hw
, I40E_PFINT_ICR0
); /* read to clear */
2562 val
= I40E_PFINT_ICR0_ENA_ECC_ERR_MASK
|
2563 I40E_PFINT_ICR0_ENA_MAL_DETECT_MASK
|
2564 I40E_PFINT_ICR0_ENA_GRST_MASK
|
2565 I40E_PFINT_ICR0_ENA_PCI_EXCEPTION_MASK
|
2566 I40E_PFINT_ICR0_ENA_GPIO_MASK
|
2567 I40E_PFINT_ICR0_ENA_TIMESYNC_MASK
|
2568 I40E_PFINT_ICR0_ENA_STORM_DETECT_MASK
|
2569 I40E_PFINT_ICR0_ENA_HMC_ERR_MASK
|
2570 I40E_PFINT_ICR0_ENA_VFLR_MASK
|
2571 I40E_PFINT_ICR0_ENA_ADMINQ_MASK
;
2573 wr32(hw
, I40E_PFINT_ICR0_ENA
, val
);
2575 /* SW_ITR_IDX = 0, but don't change INTENA */
2576 wr32(hw
, I40E_PFINT_DYN_CTL0
, I40E_PFINT_DYN_CTL0_SW_ITR_INDX_MASK
|
2577 I40E_PFINT_DYN_CTL0_INTENA_MSK_MASK
);
2579 /* OTHER_ITR_IDX = 0 */
2580 wr32(hw
, I40E_PFINT_STAT_CTL0
, 0);
2584 * i40e_configure_msi_and_legacy - Legacy mode interrupt config in the HW
2585 * @vsi: the VSI being configured
2587 static void i40e_configure_msi_and_legacy(struct i40e_vsi
*vsi
)
2589 struct i40e_q_vector
*q_vector
= vsi
->q_vectors
[0];
2590 struct i40e_pf
*pf
= vsi
->back
;
2591 struct i40e_hw
*hw
= &pf
->hw
;
2594 /* set the ITR configuration */
2595 q_vector
->rx
.itr
= ITR_TO_REG(vsi
->rx_itr_setting
);
2596 q_vector
->rx
.latency_range
= I40E_LOW_LATENCY
;
2597 wr32(hw
, I40E_PFINT_ITR0(I40E_RX_ITR
), q_vector
->rx
.itr
);
2598 q_vector
->tx
.itr
= ITR_TO_REG(vsi
->tx_itr_setting
);
2599 q_vector
->tx
.latency_range
= I40E_LOW_LATENCY
;
2600 wr32(hw
, I40E_PFINT_ITR0(I40E_TX_ITR
), q_vector
->tx
.itr
);
2602 i40e_enable_misc_int_causes(hw
);
2604 /* FIRSTQ_INDX = 0, FIRSTQ_TYPE = 0 (rx) */
2605 wr32(hw
, I40E_PFINT_LNKLST0
, 0);
2607 /* Associate the queue pair to the vector and enable the queue int */
2608 val
= I40E_QINT_RQCTL_CAUSE_ENA_MASK
|
2609 (I40E_RX_ITR
<< I40E_QINT_RQCTL_ITR_INDX_SHIFT
) |
2610 (I40E_QUEUE_TYPE_TX
<< I40E_QINT_TQCTL_NEXTQ_TYPE_SHIFT
);
2612 wr32(hw
, I40E_QINT_RQCTL(0), val
);
2614 val
= I40E_QINT_TQCTL_CAUSE_ENA_MASK
|
2615 (I40E_TX_ITR
<< I40E_QINT_TQCTL_ITR_INDX_SHIFT
) |
2616 (I40E_QUEUE_END_OF_LIST
<< I40E_QINT_TQCTL_NEXTQ_INDX_SHIFT
);
2618 wr32(hw
, I40E_QINT_TQCTL(0), val
);
2623 * i40e_irq_dynamic_disable_icr0 - Disable default interrupt generation for icr0
2624 * @pf: board private structure
2626 void i40e_irq_dynamic_disable_icr0(struct i40e_pf
*pf
)
2628 struct i40e_hw
*hw
= &pf
->hw
;
2630 wr32(hw
, I40E_PFINT_DYN_CTL0
,
2631 I40E_ITR_NONE
<< I40E_PFINT_DYN_CTLN_ITR_INDX_SHIFT
);
2636 * i40e_irq_dynamic_enable_icr0 - Enable default interrupt generation for icr0
2637 * @pf: board private structure
2639 void i40e_irq_dynamic_enable_icr0(struct i40e_pf
*pf
)
2641 struct i40e_hw
*hw
= &pf
->hw
;
2644 val
= I40E_PFINT_DYN_CTL0_INTENA_MASK
|
2645 I40E_PFINT_DYN_CTL0_CLEARPBA_MASK
|
2646 (I40E_ITR_NONE
<< I40E_PFINT_DYN_CTL0_ITR_INDX_SHIFT
);
2648 wr32(hw
, I40E_PFINT_DYN_CTL0
, val
);
2653 * i40e_irq_dynamic_enable - Enable default interrupt generation settings
2654 * @vsi: pointer to a vsi
2655 * @vector: enable a particular Hw Interrupt vector
2657 void i40e_irq_dynamic_enable(struct i40e_vsi
*vsi
, int vector
)
2659 struct i40e_pf
*pf
= vsi
->back
;
2660 struct i40e_hw
*hw
= &pf
->hw
;
2663 val
= I40E_PFINT_DYN_CTLN_INTENA_MASK
|
2664 I40E_PFINT_DYN_CTLN_CLEARPBA_MASK
|
2665 (I40E_ITR_NONE
<< I40E_PFINT_DYN_CTLN_ITR_INDX_SHIFT
);
2666 wr32(hw
, I40E_PFINT_DYN_CTLN(vector
- 1), val
);
2667 /* skip the flush */
2671 * i40e_msix_clean_rings - MSIX mode Interrupt Handler
2672 * @irq: interrupt number
2673 * @data: pointer to a q_vector
2675 static irqreturn_t
i40e_msix_clean_rings(int irq
, void *data
)
2677 struct i40e_q_vector
*q_vector
= data
;
2679 if (!q_vector
->tx
.ring
&& !q_vector
->rx
.ring
)
2682 napi_schedule(&q_vector
->napi
);
2688 * i40e_vsi_request_irq_msix - Initialize MSI-X interrupts
2689 * @vsi: the VSI being configured
2690 * @basename: name for the vector
2692 * Allocates MSI-X vectors and requests interrupts from the kernel.
2694 static int i40e_vsi_request_irq_msix(struct i40e_vsi
*vsi
, char *basename
)
2696 int q_vectors
= vsi
->num_q_vectors
;
2697 struct i40e_pf
*pf
= vsi
->back
;
2698 int base
= vsi
->base_vector
;
2703 for (vector
= 0; vector
< q_vectors
; vector
++) {
2704 struct i40e_q_vector
*q_vector
= vsi
->q_vectors
[vector
];
2706 if (q_vector
->tx
.ring
&& q_vector
->rx
.ring
) {
2707 snprintf(q_vector
->name
, sizeof(q_vector
->name
) - 1,
2708 "%s-%s-%d", basename
, "TxRx", rx_int_idx
++);
2710 } else if (q_vector
->rx
.ring
) {
2711 snprintf(q_vector
->name
, sizeof(q_vector
->name
) - 1,
2712 "%s-%s-%d", basename
, "rx", rx_int_idx
++);
2713 } else if (q_vector
->tx
.ring
) {
2714 snprintf(q_vector
->name
, sizeof(q_vector
->name
) - 1,
2715 "%s-%s-%d", basename
, "tx", tx_int_idx
++);
2717 /* skip this unused q_vector */
2720 err
= request_irq(pf
->msix_entries
[base
+ vector
].vector
,
2726 dev_info(&pf
->pdev
->dev
,
2727 "%s: request_irq failed, error: %d\n",
2729 goto free_queue_irqs
;
2731 /* assign the mask for this irq */
2732 irq_set_affinity_hint(pf
->msix_entries
[base
+ vector
].vector
,
2733 &q_vector
->affinity_mask
);
2741 irq_set_affinity_hint(pf
->msix_entries
[base
+ vector
].vector
,
2743 free_irq(pf
->msix_entries
[base
+ vector
].vector
,
2744 &(vsi
->q_vectors
[vector
]));
2750 * i40e_vsi_disable_irq - Mask off queue interrupt generation on the VSI
2751 * @vsi: the VSI being un-configured
2753 static void i40e_vsi_disable_irq(struct i40e_vsi
*vsi
)
2755 struct i40e_pf
*pf
= vsi
->back
;
2756 struct i40e_hw
*hw
= &pf
->hw
;
2757 int base
= vsi
->base_vector
;
2760 for (i
= 0; i
< vsi
->num_queue_pairs
; i
++) {
2761 wr32(hw
, I40E_QINT_TQCTL(vsi
->tx_rings
[i
]->reg_idx
), 0);
2762 wr32(hw
, I40E_QINT_RQCTL(vsi
->rx_rings
[i
]->reg_idx
), 0);
2765 if (pf
->flags
& I40E_FLAG_MSIX_ENABLED
) {
2766 for (i
= vsi
->base_vector
;
2767 i
< (vsi
->num_q_vectors
+ vsi
->base_vector
); i
++)
2768 wr32(hw
, I40E_PFINT_DYN_CTLN(i
- 1), 0);
2771 for (i
= 0; i
< vsi
->num_q_vectors
; i
++)
2772 synchronize_irq(pf
->msix_entries
[i
+ base
].vector
);
2774 /* Legacy and MSI mode - this stops all interrupt handling */
2775 wr32(hw
, I40E_PFINT_ICR0_ENA
, 0);
2776 wr32(hw
, I40E_PFINT_DYN_CTL0
, 0);
2778 synchronize_irq(pf
->pdev
->irq
);
2783 * i40e_vsi_enable_irq - Enable IRQ for the given VSI
2784 * @vsi: the VSI being configured
2786 static int i40e_vsi_enable_irq(struct i40e_vsi
*vsi
)
2788 struct i40e_pf
*pf
= vsi
->back
;
2791 if (pf
->flags
& I40E_FLAG_MSIX_ENABLED
) {
2792 for (i
= vsi
->base_vector
;
2793 i
< (vsi
->num_q_vectors
+ vsi
->base_vector
); i
++)
2794 i40e_irq_dynamic_enable(vsi
, i
);
2796 i40e_irq_dynamic_enable_icr0(pf
);
2799 i40e_flush(&pf
->hw
);
2804 * i40e_stop_misc_vector - Stop the vector that handles non-queue events
2805 * @pf: board private structure
2807 static void i40e_stop_misc_vector(struct i40e_pf
*pf
)
2810 wr32(&pf
->hw
, I40E_PFINT_ICR0_ENA
, 0);
2811 i40e_flush(&pf
->hw
);
2815 * i40e_intr - MSI/Legacy and non-queue interrupt handler
2816 * @irq: interrupt number
2817 * @data: pointer to a q_vector
2819 * This is the handler used for all MSI/Legacy interrupts, and deals
2820 * with both queue and non-queue interrupts. This is also used in
2821 * MSIX mode to handle the non-queue interrupts.
2823 static irqreturn_t
i40e_intr(int irq
, void *data
)
2825 struct i40e_pf
*pf
= (struct i40e_pf
*)data
;
2826 struct i40e_hw
*hw
= &pf
->hw
;
2827 irqreturn_t ret
= IRQ_NONE
;
2828 u32 icr0
, icr0_remaining
;
2831 icr0
= rd32(hw
, I40E_PFINT_ICR0
);
2832 ena_mask
= rd32(hw
, I40E_PFINT_ICR0_ENA
);
2834 /* if sharing a legacy IRQ, we might get called w/o an intr pending */
2835 if ((icr0
& I40E_PFINT_ICR0_INTEVENT_MASK
) == 0)
2838 /* if interrupt but no bits showing, must be SWINT */
2839 if (((icr0
& ~I40E_PFINT_ICR0_INTEVENT_MASK
) == 0) ||
2840 (icr0
& I40E_PFINT_ICR0_SWINT_MASK
))
2843 /* only q0 is used in MSI/Legacy mode, and none are used in MSIX */
2844 if (icr0
& I40E_PFINT_ICR0_QUEUE_0_MASK
) {
2846 /* temporarily disable queue cause for NAPI processing */
2847 u32 qval
= rd32(hw
, I40E_QINT_RQCTL(0));
2848 qval
&= ~I40E_QINT_RQCTL_CAUSE_ENA_MASK
;
2849 wr32(hw
, I40E_QINT_RQCTL(0), qval
);
2851 qval
= rd32(hw
, I40E_QINT_TQCTL(0));
2852 qval
&= ~I40E_QINT_TQCTL_CAUSE_ENA_MASK
;
2853 wr32(hw
, I40E_QINT_TQCTL(0), qval
);
2855 if (!test_bit(__I40E_DOWN
, &pf
->state
))
2856 napi_schedule(&pf
->vsi
[pf
->lan_vsi
]->q_vectors
[0]->napi
);
2859 if (icr0
& I40E_PFINT_ICR0_ADMINQ_MASK
) {
2860 ena_mask
&= ~I40E_PFINT_ICR0_ENA_ADMINQ_MASK
;
2861 set_bit(__I40E_ADMINQ_EVENT_PENDING
, &pf
->state
);
2864 if (icr0
& I40E_PFINT_ICR0_MAL_DETECT_MASK
) {
2865 ena_mask
&= ~I40E_PFINT_ICR0_ENA_MAL_DETECT_MASK
;
2866 set_bit(__I40E_MDD_EVENT_PENDING
, &pf
->state
);
2869 if (icr0
& I40E_PFINT_ICR0_VFLR_MASK
) {
2870 ena_mask
&= ~I40E_PFINT_ICR0_ENA_VFLR_MASK
;
2871 set_bit(__I40E_VFLR_EVENT_PENDING
, &pf
->state
);
2874 if (icr0
& I40E_PFINT_ICR0_GRST_MASK
) {
2875 if (!test_bit(__I40E_RESET_RECOVERY_PENDING
, &pf
->state
))
2876 set_bit(__I40E_RESET_INTR_RECEIVED
, &pf
->state
);
2877 ena_mask
&= ~I40E_PFINT_ICR0_ENA_GRST_MASK
;
2878 val
= rd32(hw
, I40E_GLGEN_RSTAT
);
2879 val
= (val
& I40E_GLGEN_RSTAT_RESET_TYPE_MASK
)
2880 >> I40E_GLGEN_RSTAT_RESET_TYPE_SHIFT
;
2881 if (val
== I40E_RESET_CORER
) {
2883 } else if (val
== I40E_RESET_GLOBR
) {
2885 } else if (val
== I40E_RESET_EMPR
) {
2887 set_bit(__I40E_EMP_RESET_REQUESTED
, &pf
->state
);
2891 if (icr0
& I40E_PFINT_ICR0_HMC_ERR_MASK
) {
2892 icr0
&= ~I40E_PFINT_ICR0_HMC_ERR_MASK
;
2893 dev_info(&pf
->pdev
->dev
, "HMC error interrupt\n");
2896 if (icr0
& I40E_PFINT_ICR0_TIMESYNC_MASK
) {
2897 u32 prttsyn_stat
= rd32(hw
, I40E_PRTTSYN_STAT_0
);
2899 if (prttsyn_stat
& I40E_PRTTSYN_STAT_0_TXTIME_MASK
) {
2900 ena_mask
&= ~I40E_PFINT_ICR0_ENA_TIMESYNC_MASK
;
2901 i40e_ptp_tx_hwtstamp(pf
);
2902 prttsyn_stat
&= ~I40E_PRTTSYN_STAT_0_TXTIME_MASK
;
2905 wr32(hw
, I40E_PRTTSYN_STAT_0
, prttsyn_stat
);
2908 /* If a critical error is pending we have no choice but to reset the
2910 * Report and mask out any remaining unexpected interrupts.
2912 icr0_remaining
= icr0
& ena_mask
;
2913 if (icr0_remaining
) {
2914 dev_info(&pf
->pdev
->dev
, "unhandled interrupt icr0=0x%08x\n",
2916 if ((icr0_remaining
& I40E_PFINT_ICR0_PE_CRITERR_MASK
) ||
2917 (icr0_remaining
& I40E_PFINT_ICR0_PCI_EXCEPTION_MASK
) ||
2918 (icr0_remaining
& I40E_PFINT_ICR0_ECC_ERR_MASK
)) {
2919 dev_info(&pf
->pdev
->dev
, "device will be reset\n");
2920 set_bit(__I40E_PF_RESET_REQUESTED
, &pf
->state
);
2921 i40e_service_event_schedule(pf
);
2923 ena_mask
&= ~icr0_remaining
;
2928 /* re-enable interrupt causes */
2929 wr32(hw
, I40E_PFINT_ICR0_ENA
, ena_mask
);
2930 if (!test_bit(__I40E_DOWN
, &pf
->state
)) {
2931 i40e_service_event_schedule(pf
);
2932 i40e_irq_dynamic_enable_icr0(pf
);
2939 * i40e_clean_fdir_tx_irq - Reclaim resources after transmit completes
2940 * @tx_ring: tx ring to clean
2941 * @budget: how many cleans we're allowed
2943 * Returns true if there's any budget left (e.g. the clean is finished)
2945 static bool i40e_clean_fdir_tx_irq(struct i40e_ring
*tx_ring
, int budget
)
2947 struct i40e_vsi
*vsi
= tx_ring
->vsi
;
2948 u16 i
= tx_ring
->next_to_clean
;
2949 struct i40e_tx_buffer
*tx_buf
;
2950 struct i40e_tx_desc
*tx_desc
;
2952 tx_buf
= &tx_ring
->tx_bi
[i
];
2953 tx_desc
= I40E_TX_DESC(tx_ring
, i
);
2954 i
-= tx_ring
->count
;
2957 struct i40e_tx_desc
*eop_desc
= tx_buf
->next_to_watch
;
2959 /* if next_to_watch is not set then there is no work pending */
2963 /* prevent any other reads prior to eop_desc */
2964 read_barrier_depends();
2966 /* if the descriptor isn't done, no work yet to do */
2967 if (!(eop_desc
->cmd_type_offset_bsz
&
2968 cpu_to_le64(I40E_TX_DESC_DTYPE_DESC_DONE
)))
2971 /* clear next_to_watch to prevent false hangs */
2972 tx_buf
->next_to_watch
= NULL
;
2974 /* unmap skb header data */
2975 dma_unmap_single(tx_ring
->dev
,
2976 dma_unmap_addr(tx_buf
, dma
),
2977 dma_unmap_len(tx_buf
, len
),
2980 dma_unmap_len_set(tx_buf
, len
, 0);
2983 /* move to the next desc and buffer to clean */
2988 i
-= tx_ring
->count
;
2989 tx_buf
= tx_ring
->tx_bi
;
2990 tx_desc
= I40E_TX_DESC(tx_ring
, 0);
2993 /* update budget accounting */
2995 } while (likely(budget
));
2997 i
+= tx_ring
->count
;
2998 tx_ring
->next_to_clean
= i
;
3000 if (vsi
->back
->flags
& I40E_FLAG_MSIX_ENABLED
) {
3001 i40e_irq_dynamic_enable(vsi
,
3002 tx_ring
->q_vector
->v_idx
+ vsi
->base_vector
);
3008 * i40e_fdir_clean_ring - Interrupt Handler for FDIR SB ring
3009 * @irq: interrupt number
3010 * @data: pointer to a q_vector
3012 static irqreturn_t
i40e_fdir_clean_ring(int irq
, void *data
)
3014 struct i40e_q_vector
*q_vector
= data
;
3015 struct i40e_vsi
*vsi
;
3017 if (!q_vector
->tx
.ring
)
3020 vsi
= q_vector
->tx
.ring
->vsi
;
3021 i40e_clean_fdir_tx_irq(q_vector
->tx
.ring
, vsi
->work_limit
);
3027 * i40e_map_vector_to_qp - Assigns the queue pair to the vector
3028 * @vsi: the VSI being configured
3029 * @v_idx: vector index
3030 * @qp_idx: queue pair index
3032 static void map_vector_to_qp(struct i40e_vsi
*vsi
, int v_idx
, int qp_idx
)
3034 struct i40e_q_vector
*q_vector
= vsi
->q_vectors
[v_idx
];
3035 struct i40e_ring
*tx_ring
= vsi
->tx_rings
[qp_idx
];
3036 struct i40e_ring
*rx_ring
= vsi
->rx_rings
[qp_idx
];
3038 tx_ring
->q_vector
= q_vector
;
3039 tx_ring
->next
= q_vector
->tx
.ring
;
3040 q_vector
->tx
.ring
= tx_ring
;
3041 q_vector
->tx
.count
++;
3043 rx_ring
->q_vector
= q_vector
;
3044 rx_ring
->next
= q_vector
->rx
.ring
;
3045 q_vector
->rx
.ring
= rx_ring
;
3046 q_vector
->rx
.count
++;
3050 * i40e_vsi_map_rings_to_vectors - Maps descriptor rings to vectors
3051 * @vsi: the VSI being configured
3053 * This function maps descriptor rings to the queue-specific vectors
3054 * we were allotted through the MSI-X enabling code. Ideally, we'd have
3055 * one vector per queue pair, but on a constrained vector budget, we
3056 * group the queue pairs as "efficiently" as possible.
3058 static void i40e_vsi_map_rings_to_vectors(struct i40e_vsi
*vsi
)
3060 int qp_remaining
= vsi
->num_queue_pairs
;
3061 int q_vectors
= vsi
->num_q_vectors
;
3066 /* If we don't have enough vectors for a 1-to-1 mapping, we'll have to
3067 * group them so there are multiple queues per vector.
3069 for (; v_start
< q_vectors
&& qp_remaining
; v_start
++) {
3070 struct i40e_q_vector
*q_vector
= vsi
->q_vectors
[v_start
];
3072 num_ringpairs
= DIV_ROUND_UP(qp_remaining
, q_vectors
- v_start
);
3074 q_vector
->num_ringpairs
= num_ringpairs
;
3076 q_vector
->rx
.count
= 0;
3077 q_vector
->tx
.count
= 0;
3078 q_vector
->rx
.ring
= NULL
;
3079 q_vector
->tx
.ring
= NULL
;
3081 while (num_ringpairs
--) {
3082 map_vector_to_qp(vsi
, v_start
, qp_idx
);
3090 * i40e_vsi_request_irq - Request IRQ from the OS
3091 * @vsi: the VSI being configured
3092 * @basename: name for the vector
3094 static int i40e_vsi_request_irq(struct i40e_vsi
*vsi
, char *basename
)
3096 struct i40e_pf
*pf
= vsi
->back
;
3099 if (pf
->flags
& I40E_FLAG_MSIX_ENABLED
)
3100 err
= i40e_vsi_request_irq_msix(vsi
, basename
);
3101 else if (pf
->flags
& I40E_FLAG_MSI_ENABLED
)
3102 err
= request_irq(pf
->pdev
->irq
, i40e_intr
, 0,
3103 pf
->misc_int_name
, pf
);
3105 err
= request_irq(pf
->pdev
->irq
, i40e_intr
, IRQF_SHARED
,
3106 pf
->misc_int_name
, pf
);
3109 dev_info(&pf
->pdev
->dev
, "request_irq failed, Error %d\n", err
);
3114 #ifdef CONFIG_NET_POLL_CONTROLLER
3116 * i40e_netpoll - A Polling 'interrupt'handler
3117 * @netdev: network interface device structure
3119 * This is used by netconsole to send skbs without having to re-enable
3120 * interrupts. It's not called while the normal interrupt routine is executing.
3122 static void i40e_netpoll(struct net_device
*netdev
)
3124 struct i40e_netdev_priv
*np
= netdev_priv(netdev
);
3125 struct i40e_vsi
*vsi
= np
->vsi
;
3126 struct i40e_pf
*pf
= vsi
->back
;
3129 /* if interface is down do nothing */
3130 if (test_bit(__I40E_DOWN
, &vsi
->state
))
3133 pf
->flags
|= I40E_FLAG_IN_NETPOLL
;
3134 if (pf
->flags
& I40E_FLAG_MSIX_ENABLED
) {
3135 for (i
= 0; i
< vsi
->num_q_vectors
; i
++)
3136 i40e_msix_clean_rings(0, vsi
->q_vectors
[i
]);
3138 i40e_intr(pf
->pdev
->irq
, netdev
);
3140 pf
->flags
&= ~I40E_FLAG_IN_NETPOLL
;
3145 * i40e_vsi_control_tx - Start or stop a VSI's rings
3146 * @vsi: the VSI being configured
3147 * @enable: start or stop the rings
3149 static int i40e_vsi_control_tx(struct i40e_vsi
*vsi
, bool enable
)
3151 struct i40e_pf
*pf
= vsi
->back
;
3152 struct i40e_hw
*hw
= &pf
->hw
;
3156 pf_q
= vsi
->base_queue
;
3157 for (i
= 0; i
< vsi
->num_queue_pairs
; i
++, pf_q
++) {
3158 for (j
= 0; j
< 50; j
++) {
3159 tx_reg
= rd32(hw
, I40E_QTX_ENA(pf_q
));
3160 if (((tx_reg
>> I40E_QTX_ENA_QENA_REQ_SHIFT
) & 1) ==
3161 ((tx_reg
>> I40E_QTX_ENA_QENA_STAT_SHIFT
) & 1))
3163 usleep_range(1000, 2000);
3165 /* Skip if the queue is already in the requested state */
3166 if (enable
&& (tx_reg
& I40E_QTX_ENA_QENA_STAT_MASK
))
3168 if (!enable
&& !(tx_reg
& I40E_QTX_ENA_QENA_STAT_MASK
))
3171 /* turn on/off the queue */
3173 wr32(hw
, I40E_QTX_HEAD(pf_q
), 0);
3174 tx_reg
|= I40E_QTX_ENA_QENA_REQ_MASK
;
3176 tx_reg
&= ~I40E_QTX_ENA_QENA_REQ_MASK
;
3179 wr32(hw
, I40E_QTX_ENA(pf_q
), tx_reg
);
3181 /* wait for the change to finish */
3182 for (j
= 0; j
< 10; j
++) {
3183 tx_reg
= rd32(hw
, I40E_QTX_ENA(pf_q
));
3185 if ((tx_reg
& I40E_QTX_ENA_QENA_STAT_MASK
))
3188 if (!(tx_reg
& I40E_QTX_ENA_QENA_STAT_MASK
))
3195 dev_info(&pf
->pdev
->dev
, "Tx ring %d %sable timeout\n",
3196 pf_q
, (enable
? "en" : "dis"));
3201 if (hw
->revision_id
== 0)
3208 * i40e_vsi_control_rx - Start or stop a VSI's rings
3209 * @vsi: the VSI being configured
3210 * @enable: start or stop the rings
3212 static int i40e_vsi_control_rx(struct i40e_vsi
*vsi
, bool enable
)
3214 struct i40e_pf
*pf
= vsi
->back
;
3215 struct i40e_hw
*hw
= &pf
->hw
;
3219 pf_q
= vsi
->base_queue
;
3220 for (i
= 0; i
< vsi
->num_queue_pairs
; i
++, pf_q
++) {
3221 for (j
= 0; j
< 50; j
++) {
3222 rx_reg
= rd32(hw
, I40E_QRX_ENA(pf_q
));
3223 if (((rx_reg
>> I40E_QRX_ENA_QENA_REQ_SHIFT
) & 1) ==
3224 ((rx_reg
>> I40E_QRX_ENA_QENA_STAT_SHIFT
) & 1))
3226 usleep_range(1000, 2000);
3231 if ((rx_reg
& I40E_QRX_ENA_QENA_STAT_MASK
))
3234 /* is !STAT set ? */
3235 if (!(rx_reg
& I40E_QRX_ENA_QENA_STAT_MASK
))
3239 /* turn on/off the queue */
3241 rx_reg
|= I40E_QRX_ENA_QENA_REQ_MASK
;
3243 rx_reg
&= ~I40E_QRX_ENA_QENA_REQ_MASK
;
3244 wr32(hw
, I40E_QRX_ENA(pf_q
), rx_reg
);
3246 /* wait for the change to finish */
3247 for (j
= 0; j
< 10; j
++) {
3248 rx_reg
= rd32(hw
, I40E_QRX_ENA(pf_q
));
3251 if ((rx_reg
& I40E_QRX_ENA_QENA_STAT_MASK
))
3254 if (!(rx_reg
& I40E_QRX_ENA_QENA_STAT_MASK
))
3261 dev_info(&pf
->pdev
->dev
, "Rx ring %d %sable timeout\n",
3262 pf_q
, (enable
? "en" : "dis"));
3271 * i40e_vsi_control_rings - Start or stop a VSI's rings
3272 * @vsi: the VSI being configured
3273 * @enable: start or stop the rings
3275 int i40e_vsi_control_rings(struct i40e_vsi
*vsi
, bool request
)
3279 /* do rx first for enable and last for disable */
3281 ret
= i40e_vsi_control_rx(vsi
, request
);
3284 ret
= i40e_vsi_control_tx(vsi
, request
);
3286 /* Ignore return value, we need to shutdown whatever we can */
3287 i40e_vsi_control_tx(vsi
, request
);
3288 i40e_vsi_control_rx(vsi
, request
);
3295 * i40e_vsi_free_irq - Free the irq association with the OS
3296 * @vsi: the VSI being configured
3298 static void i40e_vsi_free_irq(struct i40e_vsi
*vsi
)
3300 struct i40e_pf
*pf
= vsi
->back
;
3301 struct i40e_hw
*hw
= &pf
->hw
;
3302 int base
= vsi
->base_vector
;
3306 if (pf
->flags
& I40E_FLAG_MSIX_ENABLED
) {
3307 if (!vsi
->q_vectors
)
3310 for (i
= 0; i
< vsi
->num_q_vectors
; i
++) {
3311 u16 vector
= i
+ base
;
3313 /* free only the irqs that were actually requested */
3314 if (!vsi
->q_vectors
[i
] ||
3315 !vsi
->q_vectors
[i
]->num_ringpairs
)
3318 /* clear the affinity_mask in the IRQ descriptor */
3319 irq_set_affinity_hint(pf
->msix_entries
[vector
].vector
,
3321 free_irq(pf
->msix_entries
[vector
].vector
,
3324 /* Tear down the interrupt queue link list
3326 * We know that they come in pairs and always
3327 * the Rx first, then the Tx. To clear the
3328 * link list, stick the EOL value into the
3329 * next_q field of the registers.
3331 val
= rd32(hw
, I40E_PFINT_LNKLSTN(vector
- 1));
3332 qp
= (val
& I40E_PFINT_LNKLSTN_FIRSTQ_INDX_MASK
)
3333 >> I40E_PFINT_LNKLSTN_FIRSTQ_INDX_SHIFT
;
3334 val
|= I40E_QUEUE_END_OF_LIST
3335 << I40E_PFINT_LNKLSTN_FIRSTQ_INDX_SHIFT
;
3336 wr32(hw
, I40E_PFINT_LNKLSTN(vector
- 1), val
);
3338 while (qp
!= I40E_QUEUE_END_OF_LIST
) {
3341 val
= rd32(hw
, I40E_QINT_RQCTL(qp
));
3343 val
&= ~(I40E_QINT_RQCTL_MSIX_INDX_MASK
|
3344 I40E_QINT_RQCTL_MSIX0_INDX_MASK
|
3345 I40E_QINT_RQCTL_CAUSE_ENA_MASK
|
3346 I40E_QINT_RQCTL_INTEVENT_MASK
);
3348 val
|= (I40E_QINT_RQCTL_ITR_INDX_MASK
|
3349 I40E_QINT_RQCTL_NEXTQ_INDX_MASK
);
3351 wr32(hw
, I40E_QINT_RQCTL(qp
), val
);
3353 val
= rd32(hw
, I40E_QINT_TQCTL(qp
));
3355 next
= (val
& I40E_QINT_TQCTL_NEXTQ_INDX_MASK
)
3356 >> I40E_QINT_TQCTL_NEXTQ_INDX_SHIFT
;
3358 val
&= ~(I40E_QINT_TQCTL_MSIX_INDX_MASK
|
3359 I40E_QINT_TQCTL_MSIX0_INDX_MASK
|
3360 I40E_QINT_TQCTL_CAUSE_ENA_MASK
|
3361 I40E_QINT_TQCTL_INTEVENT_MASK
);
3363 val
|= (I40E_QINT_TQCTL_ITR_INDX_MASK
|
3364 I40E_QINT_TQCTL_NEXTQ_INDX_MASK
);
3366 wr32(hw
, I40E_QINT_TQCTL(qp
), val
);
3371 free_irq(pf
->pdev
->irq
, pf
);
3373 val
= rd32(hw
, I40E_PFINT_LNKLST0
);
3374 qp
= (val
& I40E_PFINT_LNKLSTN_FIRSTQ_INDX_MASK
)
3375 >> I40E_PFINT_LNKLSTN_FIRSTQ_INDX_SHIFT
;
3376 val
|= I40E_QUEUE_END_OF_LIST
3377 << I40E_PFINT_LNKLST0_FIRSTQ_INDX_SHIFT
;
3378 wr32(hw
, I40E_PFINT_LNKLST0
, val
);
3380 val
= rd32(hw
, I40E_QINT_RQCTL(qp
));
3381 val
&= ~(I40E_QINT_RQCTL_MSIX_INDX_MASK
|
3382 I40E_QINT_RQCTL_MSIX0_INDX_MASK
|
3383 I40E_QINT_RQCTL_CAUSE_ENA_MASK
|
3384 I40E_QINT_RQCTL_INTEVENT_MASK
);
3386 val
|= (I40E_QINT_RQCTL_ITR_INDX_MASK
|
3387 I40E_QINT_RQCTL_NEXTQ_INDX_MASK
);
3389 wr32(hw
, I40E_QINT_RQCTL(qp
), val
);
3391 val
= rd32(hw
, I40E_QINT_TQCTL(qp
));
3393 val
&= ~(I40E_QINT_TQCTL_MSIX_INDX_MASK
|
3394 I40E_QINT_TQCTL_MSIX0_INDX_MASK
|
3395 I40E_QINT_TQCTL_CAUSE_ENA_MASK
|
3396 I40E_QINT_TQCTL_INTEVENT_MASK
);
3398 val
|= (I40E_QINT_TQCTL_ITR_INDX_MASK
|
3399 I40E_QINT_TQCTL_NEXTQ_INDX_MASK
);
3401 wr32(hw
, I40E_QINT_TQCTL(qp
), val
);
3406 * i40e_free_q_vector - Free memory allocated for specific interrupt vector
3407 * @vsi: the VSI being configured
3408 * @v_idx: Index of vector to be freed
3410 * This function frees the memory allocated to the q_vector. In addition if
3411 * NAPI is enabled it will delete any references to the NAPI struct prior
3412 * to freeing the q_vector.
3414 static void i40e_free_q_vector(struct i40e_vsi
*vsi
, int v_idx
)
3416 struct i40e_q_vector
*q_vector
= vsi
->q_vectors
[v_idx
];
3417 struct i40e_ring
*ring
;
3422 /* disassociate q_vector from rings */
3423 i40e_for_each_ring(ring
, q_vector
->tx
)
3424 ring
->q_vector
= NULL
;
3426 i40e_for_each_ring(ring
, q_vector
->rx
)
3427 ring
->q_vector
= NULL
;
3429 /* only VSI w/ an associated netdev is set up w/ NAPI */
3431 netif_napi_del(&q_vector
->napi
);
3433 vsi
->q_vectors
[v_idx
] = NULL
;
3435 kfree_rcu(q_vector
, rcu
);
3439 * i40e_vsi_free_q_vectors - Free memory allocated for interrupt vectors
3440 * @vsi: the VSI being un-configured
3442 * This frees the memory allocated to the q_vectors and
3443 * deletes references to the NAPI struct.
3445 static void i40e_vsi_free_q_vectors(struct i40e_vsi
*vsi
)
3449 for (v_idx
= 0; v_idx
< vsi
->num_q_vectors
; v_idx
++)
3450 i40e_free_q_vector(vsi
, v_idx
);
3454 * i40e_reset_interrupt_capability - Disable interrupt setup in OS
3455 * @pf: board private structure
3457 static void i40e_reset_interrupt_capability(struct i40e_pf
*pf
)
3459 /* If we're in Legacy mode, the interrupt was cleaned in vsi_close */
3460 if (pf
->flags
& I40E_FLAG_MSIX_ENABLED
) {
3461 pci_disable_msix(pf
->pdev
);
3462 kfree(pf
->msix_entries
);
3463 pf
->msix_entries
= NULL
;
3464 } else if (pf
->flags
& I40E_FLAG_MSI_ENABLED
) {
3465 pci_disable_msi(pf
->pdev
);
3467 pf
->flags
&= ~(I40E_FLAG_MSIX_ENABLED
| I40E_FLAG_MSI_ENABLED
);
3471 * i40e_clear_interrupt_scheme - Clear the current interrupt scheme settings
3472 * @pf: board private structure
3474 * We go through and clear interrupt specific resources and reset the structure
3475 * to pre-load conditions
3477 static void i40e_clear_interrupt_scheme(struct i40e_pf
*pf
)
3481 i40e_put_lump(pf
->irq_pile
, 0, I40E_PILE_VALID_BIT
-1);
3482 for (i
= 0; i
< pf
->hw
.func_caps
.num_vsis
; i
++)
3484 i40e_vsi_free_q_vectors(pf
->vsi
[i
]);
3485 i40e_reset_interrupt_capability(pf
);
3489 * i40e_napi_enable_all - Enable NAPI for all q_vectors in the VSI
3490 * @vsi: the VSI being configured
3492 static void i40e_napi_enable_all(struct i40e_vsi
*vsi
)
3499 for (q_idx
= 0; q_idx
< vsi
->num_q_vectors
; q_idx
++)
3500 napi_enable(&vsi
->q_vectors
[q_idx
]->napi
);
3504 * i40e_napi_disable_all - Disable NAPI for all q_vectors in the VSI
3505 * @vsi: the VSI being configured
3507 static void i40e_napi_disable_all(struct i40e_vsi
*vsi
)
3514 for (q_idx
= 0; q_idx
< vsi
->num_q_vectors
; q_idx
++)
3515 napi_disable(&vsi
->q_vectors
[q_idx
]->napi
);
3519 * i40e_quiesce_vsi - Pause a given VSI
3520 * @vsi: the VSI being paused
3522 static void i40e_quiesce_vsi(struct i40e_vsi
*vsi
)
3524 if (test_bit(__I40E_DOWN
, &vsi
->state
))
3527 set_bit(__I40E_NEEDS_RESTART
, &vsi
->state
);
3528 if (vsi
->netdev
&& netif_running(vsi
->netdev
)) {
3529 vsi
->netdev
->netdev_ops
->ndo_stop(vsi
->netdev
);
3531 set_bit(__I40E_DOWN
, &vsi
->state
);
3537 * i40e_unquiesce_vsi - Resume a given VSI
3538 * @vsi: the VSI being resumed
3540 static void i40e_unquiesce_vsi(struct i40e_vsi
*vsi
)
3542 if (!test_bit(__I40E_NEEDS_RESTART
, &vsi
->state
))
3545 clear_bit(__I40E_NEEDS_RESTART
, &vsi
->state
);
3546 if (vsi
->netdev
&& netif_running(vsi
->netdev
))
3547 vsi
->netdev
->netdev_ops
->ndo_open(vsi
->netdev
);
3549 i40e_up(vsi
); /* this clears the DOWN bit */
3553 * i40e_pf_quiesce_all_vsi - Pause all VSIs on a PF
3556 static void i40e_pf_quiesce_all_vsi(struct i40e_pf
*pf
)
3560 for (v
= 0; v
< pf
->hw
.func_caps
.num_vsis
; v
++) {
3562 i40e_quiesce_vsi(pf
->vsi
[v
]);
3567 * i40e_pf_unquiesce_all_vsi - Resume all VSIs on a PF
3570 static void i40e_pf_unquiesce_all_vsi(struct i40e_pf
*pf
)
3574 for (v
= 0; v
< pf
->hw
.func_caps
.num_vsis
; v
++) {
3576 i40e_unquiesce_vsi(pf
->vsi
[v
]);
3581 * i40e_dcb_get_num_tc - Get the number of TCs from DCBx config
3582 * @dcbcfg: the corresponding DCBx configuration structure
3584 * Return the number of TCs from given DCBx configuration
3586 static u8
i40e_dcb_get_num_tc(struct i40e_dcbx_config
*dcbcfg
)
3591 /* Scan the ETS Config Priority Table to find
3592 * traffic class enabled for a given priority
3593 * and use the traffic class index to get the
3594 * number of traffic classes enabled
3596 for (i
= 0; i
< I40E_MAX_USER_PRIORITY
; i
++) {
3597 if (dcbcfg
->etscfg
.prioritytable
[i
] > num_tc
)
3598 num_tc
= dcbcfg
->etscfg
.prioritytable
[i
];
3601 /* Traffic class index starts from zero so
3602 * increment to return the actual count
3608 * i40e_dcb_get_enabled_tc - Get enabled traffic classes
3609 * @dcbcfg: the corresponding DCBx configuration structure
3611 * Query the current DCB configuration and return the number of
3612 * traffic classes enabled from the given DCBX config
3614 static u8
i40e_dcb_get_enabled_tc(struct i40e_dcbx_config
*dcbcfg
)
3616 u8 num_tc
= i40e_dcb_get_num_tc(dcbcfg
);
3620 for (i
= 0; i
< num_tc
; i
++)
3621 enabled_tc
|= 1 << i
;
3627 * i40e_pf_get_num_tc - Get enabled traffic classes for PF
3628 * @pf: PF being queried
3630 * Return number of traffic classes enabled for the given PF
3632 static u8
i40e_pf_get_num_tc(struct i40e_pf
*pf
)
3634 struct i40e_hw
*hw
= &pf
->hw
;
3637 struct i40e_dcbx_config
*dcbcfg
= &hw
->local_dcbx_config
;
3639 /* If DCB is not enabled then always in single TC */
3640 if (!(pf
->flags
& I40E_FLAG_DCB_ENABLED
))
3643 /* MFP mode return count of enabled TCs for this PF */
3644 if (pf
->flags
& I40E_FLAG_MFP_ENABLED
) {
3645 enabled_tc
= pf
->hw
.func_caps
.enabled_tcmap
;
3646 for (i
= 0; i
< I40E_MAX_TRAFFIC_CLASS
; i
++) {
3647 if (enabled_tc
& (1 << i
))
3653 /* SFP mode will be enabled for all TCs on port */
3654 return i40e_dcb_get_num_tc(dcbcfg
);
3658 * i40e_pf_get_default_tc - Get bitmap for first enabled TC
3659 * @pf: PF being queried
3661 * Return a bitmap for first enabled traffic class for this PF.
3663 static u8
i40e_pf_get_default_tc(struct i40e_pf
*pf
)
3665 u8 enabled_tc
= pf
->hw
.func_caps
.enabled_tcmap
;
3669 return 0x1; /* TC0 */
3671 /* Find the first enabled TC */
3672 for (i
= 0; i
< I40E_MAX_TRAFFIC_CLASS
; i
++) {
3673 if (enabled_tc
& (1 << i
))
3681 * i40e_pf_get_pf_tc_map - Get bitmap for enabled traffic classes
3682 * @pf: PF being queried
3684 * Return a bitmap for enabled traffic classes for this PF.
3686 static u8
i40e_pf_get_tc_map(struct i40e_pf
*pf
)
3688 /* If DCB is not enabled for this PF then just return default TC */
3689 if (!(pf
->flags
& I40E_FLAG_DCB_ENABLED
))
3690 return i40e_pf_get_default_tc(pf
);
3692 /* MFP mode will have enabled TCs set by FW */
3693 if (pf
->flags
& I40E_FLAG_MFP_ENABLED
)
3694 return pf
->hw
.func_caps
.enabled_tcmap
;
3696 /* SFP mode we want PF to be enabled for all TCs */
3697 return i40e_dcb_get_enabled_tc(&pf
->hw
.local_dcbx_config
);
3701 * i40e_vsi_get_bw_info - Query VSI BW Information
3702 * @vsi: the VSI being queried
3704 * Returns 0 on success, negative value on failure
3706 static int i40e_vsi_get_bw_info(struct i40e_vsi
*vsi
)
3708 struct i40e_aqc_query_vsi_ets_sla_config_resp bw_ets_config
= {0};
3709 struct i40e_aqc_query_vsi_bw_config_resp bw_config
= {0};
3710 struct i40e_pf
*pf
= vsi
->back
;
3711 struct i40e_hw
*hw
= &pf
->hw
;
3716 /* Get the VSI level BW configuration */
3717 aq_ret
= i40e_aq_query_vsi_bw_config(hw
, vsi
->seid
, &bw_config
, NULL
);
3719 dev_info(&pf
->pdev
->dev
,
3720 "couldn't get pf vsi bw config, err %d, aq_err %d\n",
3721 aq_ret
, pf
->hw
.aq
.asq_last_status
);
3725 /* Get the VSI level BW configuration per TC */
3726 aq_ret
= i40e_aq_query_vsi_ets_sla_config(hw
, vsi
->seid
, &bw_ets_config
,
3729 dev_info(&pf
->pdev
->dev
,
3730 "couldn't get pf vsi ets bw config, err %d, aq_err %d\n",
3731 aq_ret
, pf
->hw
.aq
.asq_last_status
);
3735 if (bw_config
.tc_valid_bits
!= bw_ets_config
.tc_valid_bits
) {
3736 dev_info(&pf
->pdev
->dev
,
3737 "Enabled TCs mismatch from querying VSI BW info 0x%08x 0x%08x\n",
3738 bw_config
.tc_valid_bits
,
3739 bw_ets_config
.tc_valid_bits
);
3740 /* Still continuing */
3743 vsi
->bw_limit
= le16_to_cpu(bw_config
.port_bw_limit
);
3744 vsi
->bw_max_quanta
= bw_config
.max_bw
;
3745 tc_bw_max
= le16_to_cpu(bw_ets_config
.tc_bw_max
[0]) |
3746 (le16_to_cpu(bw_ets_config
.tc_bw_max
[1]) << 16);
3747 for (i
= 0; i
< I40E_MAX_TRAFFIC_CLASS
; i
++) {
3748 vsi
->bw_ets_share_credits
[i
] = bw_ets_config
.share_credits
[i
];
3749 vsi
->bw_ets_limit_credits
[i
] =
3750 le16_to_cpu(bw_ets_config
.credits
[i
]);
3751 /* 3 bits out of 4 for each TC */
3752 vsi
->bw_ets_max_quanta
[i
] = (u8
)((tc_bw_max
>> (i
*4)) & 0x7);
3759 * i40e_vsi_configure_bw_alloc - Configure VSI BW allocation per TC
3760 * @vsi: the VSI being configured
3761 * @enabled_tc: TC bitmap
3762 * @bw_credits: BW shared credits per TC
3764 * Returns 0 on success, negative value on failure
3766 static int i40e_vsi_configure_bw_alloc(struct i40e_vsi
*vsi
, u8 enabled_tc
,
3769 struct i40e_aqc_configure_vsi_tc_bw_data bw_data
;
3773 bw_data
.tc_valid_bits
= enabled_tc
;
3774 for (i
= 0; i
< I40E_MAX_TRAFFIC_CLASS
; i
++)
3775 bw_data
.tc_bw_credits
[i
] = bw_share
[i
];
3777 aq_ret
= i40e_aq_config_vsi_tc_bw(&vsi
->back
->hw
, vsi
->seid
, &bw_data
,
3780 dev_info(&vsi
->back
->pdev
->dev
,
3781 "AQ command Config VSI BW allocation per TC failed = %d\n",
3782 vsi
->back
->hw
.aq
.asq_last_status
);
3786 for (i
= 0; i
< I40E_MAX_TRAFFIC_CLASS
; i
++)
3787 vsi
->info
.qs_handle
[i
] = bw_data
.qs_handles
[i
];
3793 * i40e_vsi_config_netdev_tc - Setup the netdev TC configuration
3794 * @vsi: the VSI being configured
3795 * @enabled_tc: TC map to be enabled
3798 static void i40e_vsi_config_netdev_tc(struct i40e_vsi
*vsi
, u8 enabled_tc
)
3800 struct net_device
*netdev
= vsi
->netdev
;
3801 struct i40e_pf
*pf
= vsi
->back
;
3802 struct i40e_hw
*hw
= &pf
->hw
;
3805 struct i40e_dcbx_config
*dcbcfg
= &hw
->local_dcbx_config
;
3811 netdev_reset_tc(netdev
);
3815 /* Set up actual enabled TCs on the VSI */
3816 if (netdev_set_num_tc(netdev
, vsi
->tc_config
.numtc
))
3819 /* set per TC queues for the VSI */
3820 for (i
= 0; i
< I40E_MAX_TRAFFIC_CLASS
; i
++) {
3821 /* Only set TC queues for enabled tcs
3823 * e.g. For a VSI that has TC0 and TC3 enabled the
3824 * enabled_tc bitmap would be 0x00001001; the driver
3825 * will set the numtc for netdev as 2 that will be
3826 * referenced by the netdev layer as TC 0 and 1.
3828 if (vsi
->tc_config
.enabled_tc
& (1 << i
))
3829 netdev_set_tc_queue(netdev
,
3830 vsi
->tc_config
.tc_info
[i
].netdev_tc
,
3831 vsi
->tc_config
.tc_info
[i
].qcount
,
3832 vsi
->tc_config
.tc_info
[i
].qoffset
);
3835 /* Assign UP2TC map for the VSI */
3836 for (i
= 0; i
< I40E_MAX_USER_PRIORITY
; i
++) {
3837 /* Get the actual TC# for the UP */
3838 u8 ets_tc
= dcbcfg
->etscfg
.prioritytable
[i
];
3839 /* Get the mapped netdev TC# for the UP */
3840 netdev_tc
= vsi
->tc_config
.tc_info
[ets_tc
].netdev_tc
;
3841 netdev_set_prio_tc_map(netdev
, i
, netdev_tc
);
3846 * i40e_vsi_update_queue_map - Update our copy of VSi info with new queue map
3847 * @vsi: the VSI being configured
3848 * @ctxt: the ctxt buffer returned from AQ VSI update param command
3850 static void i40e_vsi_update_queue_map(struct i40e_vsi
*vsi
,
3851 struct i40e_vsi_context
*ctxt
)
3853 /* copy just the sections touched not the entire info
3854 * since not all sections are valid as returned by
3857 vsi
->info
.mapping_flags
= ctxt
->info
.mapping_flags
;
3858 memcpy(&vsi
->info
.queue_mapping
,
3859 &ctxt
->info
.queue_mapping
, sizeof(vsi
->info
.queue_mapping
));
3860 memcpy(&vsi
->info
.tc_mapping
, ctxt
->info
.tc_mapping
,
3861 sizeof(vsi
->info
.tc_mapping
));
3865 * i40e_vsi_config_tc - Configure VSI Tx Scheduler for given TC map
3866 * @vsi: VSI to be configured
3867 * @enabled_tc: TC bitmap
3869 * This configures a particular VSI for TCs that are mapped to the
3870 * given TC bitmap. It uses default bandwidth share for TCs across
3871 * VSIs to configure TC for a particular VSI.
3874 * It is expected that the VSI queues have been quisced before calling
3877 static int i40e_vsi_config_tc(struct i40e_vsi
*vsi
, u8 enabled_tc
)
3879 u8 bw_share
[I40E_MAX_TRAFFIC_CLASS
] = {0};
3880 struct i40e_vsi_context ctxt
;
3884 /* Check if enabled_tc is same as existing or new TCs */
3885 if (vsi
->tc_config
.enabled_tc
== enabled_tc
)
3888 /* Enable ETS TCs with equal BW Share for now across all VSIs */
3889 for (i
= 0; i
< I40E_MAX_TRAFFIC_CLASS
; i
++) {
3890 if (enabled_tc
& (1 << i
))
3894 ret
= i40e_vsi_configure_bw_alloc(vsi
, enabled_tc
, bw_share
);
3896 dev_info(&vsi
->back
->pdev
->dev
,
3897 "Failed configuring TC map %d for VSI %d\n",
3898 enabled_tc
, vsi
->seid
);
3902 /* Update Queue Pairs Mapping for currently enabled UPs */
3903 ctxt
.seid
= vsi
->seid
;
3904 ctxt
.pf_num
= vsi
->back
->hw
.pf_id
;
3906 ctxt
.uplink_seid
= vsi
->uplink_seid
;
3907 memcpy(&ctxt
.info
, &vsi
->info
, sizeof(vsi
->info
));
3908 i40e_vsi_setup_queue_map(vsi
, &ctxt
, enabled_tc
, false);
3910 /* Update the VSI after updating the VSI queue-mapping information */
3911 ret
= i40e_aq_update_vsi_params(&vsi
->back
->hw
, &ctxt
, NULL
);
3913 dev_info(&vsi
->back
->pdev
->dev
,
3914 "update vsi failed, aq_err=%d\n",
3915 vsi
->back
->hw
.aq
.asq_last_status
);
3918 /* update the local VSI info with updated queue map */
3919 i40e_vsi_update_queue_map(vsi
, &ctxt
);
3920 vsi
->info
.valid_sections
= 0;
3922 /* Update current VSI BW information */
3923 ret
= i40e_vsi_get_bw_info(vsi
);
3925 dev_info(&vsi
->back
->pdev
->dev
,
3926 "Failed updating vsi bw info, aq_err=%d\n",
3927 vsi
->back
->hw
.aq
.asq_last_status
);
3931 /* Update the netdev TC setup */
3932 i40e_vsi_config_netdev_tc(vsi
, enabled_tc
);
3938 * i40e_veb_config_tc - Configure TCs for given VEB
3940 * @enabled_tc: TC bitmap
3942 * Configures given TC bitmap for VEB (switching) element
3944 int i40e_veb_config_tc(struct i40e_veb
*veb
, u8 enabled_tc
)
3946 struct i40e_aqc_configure_switching_comp_bw_config_data bw_data
= {0};
3947 struct i40e_pf
*pf
= veb
->pf
;
3951 /* No TCs or already enabled TCs just return */
3952 if (!enabled_tc
|| veb
->enabled_tc
== enabled_tc
)
3955 bw_data
.tc_valid_bits
= enabled_tc
;
3956 /* bw_data.absolute_credits is not set (relative) */
3958 /* Enable ETS TCs with equal BW Share for now */
3959 for (i
= 0; i
< I40E_MAX_TRAFFIC_CLASS
; i
++) {
3960 if (enabled_tc
& (1 << i
))
3961 bw_data
.tc_bw_share_credits
[i
] = 1;
3964 ret
= i40e_aq_config_switch_comp_bw_config(&pf
->hw
, veb
->seid
,
3967 dev_info(&pf
->pdev
->dev
,
3968 "veb bw config failed, aq_err=%d\n",
3969 pf
->hw
.aq
.asq_last_status
);
3973 /* Update the BW information */
3974 ret
= i40e_veb_get_bw_info(veb
);
3976 dev_info(&pf
->pdev
->dev
,
3977 "Failed getting veb bw config, aq_err=%d\n",
3978 pf
->hw
.aq
.asq_last_status
);
3985 #ifdef CONFIG_I40E_DCB
3987 * i40e_dcb_reconfigure - Reconfigure all VEBs and VSIs
3990 * Reconfigure VEB/VSIs on a given PF; it is assumed that
3991 * the caller would've quiesce all the VSIs before calling
3994 static void i40e_dcb_reconfigure(struct i40e_pf
*pf
)
4000 /* Enable the TCs available on PF to all VEBs */
4001 tc_map
= i40e_pf_get_tc_map(pf
);
4002 for (v
= 0; v
< I40E_MAX_VEB
; v
++) {
4005 ret
= i40e_veb_config_tc(pf
->veb
[v
], tc_map
);
4007 dev_info(&pf
->pdev
->dev
,
4008 "Failed configuring TC for VEB seid=%d\n",
4010 /* Will try to configure as many components */
4014 /* Update each VSI */
4015 for (v
= 0; v
< pf
->hw
.func_caps
.num_vsis
; v
++) {
4019 /* - Enable all TCs for the LAN VSI
4020 * - For all others keep them at TC0 for now
4022 if (v
== pf
->lan_vsi
)
4023 tc_map
= i40e_pf_get_tc_map(pf
);
4025 tc_map
= i40e_pf_get_default_tc(pf
);
4027 ret
= i40e_vsi_config_tc(pf
->vsi
[v
], tc_map
);
4029 dev_info(&pf
->pdev
->dev
,
4030 "Failed configuring TC for VSI seid=%d\n",
4032 /* Will try to configure as many components */
4034 if (pf
->vsi
[v
]->netdev
)
4035 i40e_dcbnl_set_all(pf
->vsi
[v
]);
4041 * i40e_init_pf_dcb - Initialize DCB configuration
4042 * @pf: PF being configured
4044 * Query the current DCB configuration and cache it
4045 * in the hardware structure
4047 static int i40e_init_pf_dcb(struct i40e_pf
*pf
)
4049 struct i40e_hw
*hw
= &pf
->hw
;
4052 if (pf
->hw
.func_caps
.npar_enable
)
4055 /* Get the initial DCB configuration */
4056 err
= i40e_init_dcb(hw
);
4058 /* Device/Function is not DCBX capable */
4059 if ((!hw
->func_caps
.dcb
) ||
4060 (hw
->dcbx_status
== I40E_DCBX_STATUS_DISABLED
)) {
4061 dev_info(&pf
->pdev
->dev
,
4062 "DCBX offload is not supported or is disabled for this PF.\n");
4064 if (pf
->flags
& I40E_FLAG_MFP_ENABLED
)
4068 /* When status is not DISABLED then DCBX in FW */
4069 pf
->dcbx_cap
= DCB_CAP_DCBX_LLD_MANAGED
|
4070 DCB_CAP_DCBX_VER_IEEE
;
4071 pf
->flags
|= I40E_FLAG_DCB_ENABLED
;
4078 #endif /* CONFIG_I40E_DCB */
4081 * i40e_up_complete - Finish the last steps of bringing up a connection
4082 * @vsi: the VSI being configured
4084 static int i40e_up_complete(struct i40e_vsi
*vsi
)
4086 struct i40e_pf
*pf
= vsi
->back
;
4089 if (pf
->flags
& I40E_FLAG_MSIX_ENABLED
)
4090 i40e_vsi_configure_msix(vsi
);
4092 i40e_configure_msi_and_legacy(vsi
);
4095 err
= i40e_vsi_control_rings(vsi
, true);
4099 clear_bit(__I40E_DOWN
, &vsi
->state
);
4100 i40e_napi_enable_all(vsi
);
4101 i40e_vsi_enable_irq(vsi
);
4103 if ((pf
->hw
.phy
.link_info
.link_info
& I40E_AQ_LINK_UP
) &&
4105 netdev_info(vsi
->netdev
, "NIC Link is Up\n");
4106 netif_tx_start_all_queues(vsi
->netdev
);
4107 netif_carrier_on(vsi
->netdev
);
4108 } else if (vsi
->netdev
) {
4109 netdev_info(vsi
->netdev
, "NIC Link is Down\n");
4112 /* replay FDIR SB filters */
4113 if (vsi
->type
== I40E_VSI_FDIR
)
4114 i40e_fdir_filter_restore(vsi
);
4115 i40e_service_event_schedule(pf
);
4121 * i40e_vsi_reinit_locked - Reset the VSI
4122 * @vsi: the VSI being configured
4124 * Rebuild the ring structs after some configuration
4125 * has changed, e.g. MTU size.
4127 static void i40e_vsi_reinit_locked(struct i40e_vsi
*vsi
)
4129 struct i40e_pf
*pf
= vsi
->back
;
4131 WARN_ON(in_interrupt());
4132 while (test_and_set_bit(__I40E_CONFIG_BUSY
, &pf
->state
))
4133 usleep_range(1000, 2000);
4136 /* Give a VF some time to respond to the reset. The
4137 * two second wait is based upon the watchdog cycle in
4140 if (vsi
->type
== I40E_VSI_SRIOV
)
4143 clear_bit(__I40E_CONFIG_BUSY
, &pf
->state
);
4147 * i40e_up - Bring the connection back up after being down
4148 * @vsi: the VSI being configured
4150 int i40e_up(struct i40e_vsi
*vsi
)
4154 err
= i40e_vsi_configure(vsi
);
4156 err
= i40e_up_complete(vsi
);
4162 * i40e_down - Shutdown the connection processing
4163 * @vsi: the VSI being stopped
4165 void i40e_down(struct i40e_vsi
*vsi
)
4169 /* It is assumed that the caller of this function
4170 * sets the vsi->state __I40E_DOWN bit.
4173 netif_carrier_off(vsi
->netdev
);
4174 netif_tx_disable(vsi
->netdev
);
4176 i40e_vsi_disable_irq(vsi
);
4177 i40e_vsi_control_rings(vsi
, false);
4178 i40e_napi_disable_all(vsi
);
4180 for (i
= 0; i
< vsi
->num_queue_pairs
; i
++) {
4181 i40e_clean_tx_ring(vsi
->tx_rings
[i
]);
4182 i40e_clean_rx_ring(vsi
->rx_rings
[i
]);
4187 * i40e_setup_tc - configure multiple traffic classes
4188 * @netdev: net device to configure
4189 * @tc: number of traffic classes to enable
4191 static int i40e_setup_tc(struct net_device
*netdev
, u8 tc
)
4193 struct i40e_netdev_priv
*np
= netdev_priv(netdev
);
4194 struct i40e_vsi
*vsi
= np
->vsi
;
4195 struct i40e_pf
*pf
= vsi
->back
;
4200 /* Check if DCB enabled to continue */
4201 if (!(pf
->flags
& I40E_FLAG_DCB_ENABLED
)) {
4202 netdev_info(netdev
, "DCB is not enabled for adapter\n");
4206 /* Check if MFP enabled */
4207 if (pf
->flags
& I40E_FLAG_MFP_ENABLED
) {
4208 netdev_info(netdev
, "Configuring TC not supported in MFP mode\n");
4212 /* Check whether tc count is within enabled limit */
4213 if (tc
> i40e_pf_get_num_tc(pf
)) {
4214 netdev_info(netdev
, "TC count greater than enabled on link for adapter\n");
4218 /* Generate TC map for number of tc requested */
4219 for (i
= 0; i
< tc
; i
++)
4220 enabled_tc
|= (1 << i
);
4222 /* Requesting same TC configuration as already enabled */
4223 if (enabled_tc
== vsi
->tc_config
.enabled_tc
)
4226 /* Quiesce VSI queues */
4227 i40e_quiesce_vsi(vsi
);
4229 /* Configure VSI for enabled TCs */
4230 ret
= i40e_vsi_config_tc(vsi
, enabled_tc
);
4232 netdev_info(netdev
, "Failed configuring TC for VSI seid=%d\n",
4238 i40e_unquiesce_vsi(vsi
);
4245 * i40e_open - Called when a network interface is made active
4246 * @netdev: network interface device structure
4248 * The open entry point is called when a network interface is made
4249 * active by the system (IFF_UP). At this point all resources needed
4250 * for transmit and receive operations are allocated, the interrupt
4251 * handler is registered with the OS, the netdev watchdog subtask is
4252 * enabled, and the stack is notified that the interface is ready.
4254 * Returns 0 on success, negative value on failure
4256 static int i40e_open(struct net_device
*netdev
)
4258 struct i40e_netdev_priv
*np
= netdev_priv(netdev
);
4259 struct i40e_vsi
*vsi
= np
->vsi
;
4260 struct i40e_pf
*pf
= vsi
->back
;
4263 /* disallow open during test or if eeprom is broken */
4264 if (test_bit(__I40E_TESTING
, &pf
->state
) ||
4265 test_bit(__I40E_BAD_EEPROM
, &pf
->state
))
4268 netif_carrier_off(netdev
);
4270 err
= i40e_vsi_open(vsi
);
4274 #ifdef CONFIG_I40E_VXLAN
4275 vxlan_get_rx_port(netdev
);
4283 * @vsi: the VSI to open
4285 * Finish initialization of the VSI.
4287 * Returns 0 on success, negative value on failure
4289 int i40e_vsi_open(struct i40e_vsi
*vsi
)
4291 struct i40e_pf
*pf
= vsi
->back
;
4292 char int_name
[IFNAMSIZ
];
4295 /* allocate descriptors */
4296 err
= i40e_vsi_setup_tx_resources(vsi
);
4299 err
= i40e_vsi_setup_rx_resources(vsi
);
4303 err
= i40e_vsi_configure(vsi
);
4311 snprintf(int_name
, sizeof(int_name
) - 1, "%s-%s",
4312 dev_driver_string(&pf
->pdev
->dev
), vsi
->netdev
->name
);
4313 err
= i40e_vsi_request_irq(vsi
, int_name
);
4317 /* Notify the stack of the actual queue counts. */
4318 err
= netif_set_real_num_tx_queues(vsi
->netdev
, vsi
->num_queue_pairs
);
4320 goto err_set_queues
;
4322 err
= netif_set_real_num_rx_queues(vsi
->netdev
, vsi
->num_queue_pairs
);
4324 goto err_set_queues
;
4326 err
= i40e_up_complete(vsi
);
4328 goto err_up_complete
;
4335 i40e_vsi_free_irq(vsi
);
4337 i40e_vsi_free_rx_resources(vsi
);
4339 i40e_vsi_free_tx_resources(vsi
);
4340 if (vsi
== pf
->vsi
[pf
->lan_vsi
])
4341 i40e_do_reset(pf
, (1 << __I40E_PF_RESET_REQUESTED
));
4347 * i40e_fdir_filter_exit - Cleans up the Flow Director accounting
4348 * @pf: Pointer to pf
4350 * This function destroys the hlist where all the Flow Director
4351 * filters were saved.
4353 static void i40e_fdir_filter_exit(struct i40e_pf
*pf
)
4355 struct i40e_fdir_filter
*filter
;
4356 struct hlist_node
*node2
;
4358 hlist_for_each_entry_safe(filter
, node2
,
4359 &pf
->fdir_filter_list
, fdir_node
) {
4360 hlist_del(&filter
->fdir_node
);
4363 pf
->fdir_pf_active_filters
= 0;
4367 * i40e_close - Disables a network interface
4368 * @netdev: network interface device structure
4370 * The close entry point is called when an interface is de-activated
4371 * by the OS. The hardware is still under the driver's control, but
4372 * this netdev interface is disabled.
4374 * Returns 0, this is not allowed to fail
4376 static int i40e_close(struct net_device
*netdev
)
4378 struct i40e_netdev_priv
*np
= netdev_priv(netdev
);
4379 struct i40e_vsi
*vsi
= np
->vsi
;
4381 if (test_and_set_bit(__I40E_DOWN
, &vsi
->state
))
4385 i40e_vsi_free_irq(vsi
);
4387 i40e_vsi_free_tx_resources(vsi
);
4388 i40e_vsi_free_rx_resources(vsi
);
4394 * i40e_do_reset - Start a PF or Core Reset sequence
4395 * @pf: board private structure
4396 * @reset_flags: which reset is requested
4398 * The essential difference in resets is that the PF Reset
4399 * doesn't clear the packet buffers, doesn't reset the PE
4400 * firmware, and doesn't bother the other PFs on the chip.
4402 void i40e_do_reset(struct i40e_pf
*pf
, u32 reset_flags
)
4406 WARN_ON(in_interrupt());
4408 /* do the biggest reset indicated */
4409 if (reset_flags
& (1 << __I40E_GLOBAL_RESET_REQUESTED
)) {
4411 /* Request a Global Reset
4413 * This will start the chip's countdown to the actual full
4414 * chip reset event, and a warning interrupt to be sent
4415 * to all PFs, including the requestor. Our handler
4416 * for the warning interrupt will deal with the shutdown
4417 * and recovery of the switch setup.
4419 dev_dbg(&pf
->pdev
->dev
, "GlobalR requested\n");
4420 val
= rd32(&pf
->hw
, I40E_GLGEN_RTRIG
);
4421 val
|= I40E_GLGEN_RTRIG_GLOBR_MASK
;
4422 wr32(&pf
->hw
, I40E_GLGEN_RTRIG
, val
);
4424 } else if (reset_flags
& (1 << __I40E_CORE_RESET_REQUESTED
)) {
4426 /* Request a Core Reset
4428 * Same as Global Reset, except does *not* include the MAC/PHY
4430 dev_dbg(&pf
->pdev
->dev
, "CoreR requested\n");
4431 val
= rd32(&pf
->hw
, I40E_GLGEN_RTRIG
);
4432 val
|= I40E_GLGEN_RTRIG_CORER_MASK
;
4433 wr32(&pf
->hw
, I40E_GLGEN_RTRIG
, val
);
4434 i40e_flush(&pf
->hw
);
4436 } else if (reset_flags
& (1 << __I40E_EMP_RESET_REQUESTED
)) {
4438 /* Request a Firmware Reset
4440 * Same as Global reset, plus restarting the
4441 * embedded firmware engine.
4443 /* enable EMP Reset */
4444 val
= rd32(&pf
->hw
, I40E_GLGEN_RSTENA_EMP
);
4445 val
|= I40E_GLGEN_RSTENA_EMP_EMP_RST_ENA_MASK
;
4446 wr32(&pf
->hw
, I40E_GLGEN_RSTENA_EMP
, val
);
4448 /* force the reset */
4449 val
= rd32(&pf
->hw
, I40E_GLGEN_RTRIG
);
4450 val
|= I40E_GLGEN_RTRIG_EMPFWR_MASK
;
4451 wr32(&pf
->hw
, I40E_GLGEN_RTRIG
, val
);
4452 i40e_flush(&pf
->hw
);
4454 } else if (reset_flags
& (1 << __I40E_PF_RESET_REQUESTED
)) {
4456 /* Request a PF Reset
4458 * Resets only the PF-specific registers
4460 * This goes directly to the tear-down and rebuild of
4461 * the switch, since we need to do all the recovery as
4462 * for the Core Reset.
4464 dev_dbg(&pf
->pdev
->dev
, "PFR requested\n");
4465 i40e_handle_reset_warning(pf
);
4467 } else if (reset_flags
& (1 << __I40E_REINIT_REQUESTED
)) {
4470 /* Find the VSI(s) that requested a re-init */
4471 dev_info(&pf
->pdev
->dev
,
4472 "VSI reinit requested\n");
4473 for (v
= 0; v
< pf
->hw
.func_caps
.num_vsis
; v
++) {
4474 struct i40e_vsi
*vsi
= pf
->vsi
[v
];
4476 test_bit(__I40E_REINIT_REQUESTED
, &vsi
->state
)) {
4477 i40e_vsi_reinit_locked(pf
->vsi
[v
]);
4478 clear_bit(__I40E_REINIT_REQUESTED
, &vsi
->state
);
4482 /* no further action needed, so return now */
4485 dev_info(&pf
->pdev
->dev
,
4486 "bad reset request 0x%08x\n", reset_flags
);
4491 #ifdef CONFIG_I40E_DCB
4493 * i40e_dcb_need_reconfig - Check if DCB needs reconfig
4494 * @pf: board private structure
4495 * @old_cfg: current DCB config
4496 * @new_cfg: new DCB config
4498 bool i40e_dcb_need_reconfig(struct i40e_pf
*pf
,
4499 struct i40e_dcbx_config
*old_cfg
,
4500 struct i40e_dcbx_config
*new_cfg
)
4502 bool need_reconfig
= false;
4504 /* Check if ETS configuration has changed */
4505 if (memcmp(&new_cfg
->etscfg
,
4507 sizeof(new_cfg
->etscfg
))) {
4508 /* If Priority Table has changed reconfig is needed */
4509 if (memcmp(&new_cfg
->etscfg
.prioritytable
,
4510 &old_cfg
->etscfg
.prioritytable
,
4511 sizeof(new_cfg
->etscfg
.prioritytable
))) {
4512 need_reconfig
= true;
4513 dev_dbg(&pf
->pdev
->dev
, "ETS UP2TC changed.\n");
4516 if (memcmp(&new_cfg
->etscfg
.tcbwtable
,
4517 &old_cfg
->etscfg
.tcbwtable
,
4518 sizeof(new_cfg
->etscfg
.tcbwtable
)))
4519 dev_dbg(&pf
->pdev
->dev
, "ETS TC BW Table changed.\n");
4521 if (memcmp(&new_cfg
->etscfg
.tsatable
,
4522 &old_cfg
->etscfg
.tsatable
,
4523 sizeof(new_cfg
->etscfg
.tsatable
)))
4524 dev_dbg(&pf
->pdev
->dev
, "ETS TSA Table changed.\n");
4527 /* Check if PFC configuration has changed */
4528 if (memcmp(&new_cfg
->pfc
,
4530 sizeof(new_cfg
->pfc
))) {
4531 need_reconfig
= true;
4532 dev_dbg(&pf
->pdev
->dev
, "PFC config change detected.\n");
4535 /* Check if APP Table has changed */
4536 if (memcmp(&new_cfg
->app
,
4538 sizeof(new_cfg
->app
))) {
4539 need_reconfig
= true;
4540 dev_dbg(&pf
->pdev
->dev
, "APP Table change detected.\n");
4543 return need_reconfig
;
4547 * i40e_handle_lldp_event - Handle LLDP Change MIB event
4548 * @pf: board private structure
4549 * @e: event info posted on ARQ
4551 static int i40e_handle_lldp_event(struct i40e_pf
*pf
,
4552 struct i40e_arq_event_info
*e
)
4554 struct i40e_aqc_lldp_get_mib
*mib
=
4555 (struct i40e_aqc_lldp_get_mib
*)&e
->desc
.params
.raw
;
4556 struct i40e_hw
*hw
= &pf
->hw
;
4557 struct i40e_dcbx_config
*dcbx_cfg
= &hw
->local_dcbx_config
;
4558 struct i40e_dcbx_config tmp_dcbx_cfg
;
4559 bool need_reconfig
= false;
4563 /* Ignore if event is not for Nearest Bridge */
4564 type
= ((mib
->type
>> I40E_AQ_LLDP_BRIDGE_TYPE_SHIFT
)
4565 & I40E_AQ_LLDP_BRIDGE_TYPE_MASK
);
4566 if (type
!= I40E_AQ_LLDP_BRIDGE_TYPE_NEAREST_BRIDGE
)
4569 /* Check MIB Type and return if event for Remote MIB update */
4570 type
= mib
->type
& I40E_AQ_LLDP_MIB_TYPE_MASK
;
4571 if (type
== I40E_AQ_LLDP_MIB_REMOTE
) {
4572 /* Update the remote cached instance and return */
4573 ret
= i40e_aq_get_dcb_config(hw
, I40E_AQ_LLDP_MIB_REMOTE
,
4574 I40E_AQ_LLDP_BRIDGE_TYPE_NEAREST_BRIDGE
,
4575 &hw
->remote_dcbx_config
);
4579 /* Convert/store the DCBX data from LLDPDU temporarily */
4580 memset(&tmp_dcbx_cfg
, 0, sizeof(tmp_dcbx_cfg
));
4581 ret
= i40e_lldp_to_dcb_config(e
->msg_buf
, &tmp_dcbx_cfg
);
4583 /* Error in LLDPDU parsing return */
4584 dev_info(&pf
->pdev
->dev
, "Failed parsing LLDPDU from event buffer\n");
4588 /* No change detected in DCBX configs */
4589 if (!memcmp(&tmp_dcbx_cfg
, dcbx_cfg
, sizeof(tmp_dcbx_cfg
))) {
4590 dev_dbg(&pf
->pdev
->dev
, "No change detected in DCBX configuration.\n");
4594 need_reconfig
= i40e_dcb_need_reconfig(pf
, dcbx_cfg
, &tmp_dcbx_cfg
);
4596 i40e_dcbnl_flush_apps(pf
, &tmp_dcbx_cfg
);
4598 /* Overwrite the new configuration */
4599 *dcbx_cfg
= tmp_dcbx_cfg
;
4604 /* Reconfiguration needed quiesce all VSIs */
4605 i40e_pf_quiesce_all_vsi(pf
);
4607 /* Changes in configuration update VEB/VSI */
4608 i40e_dcb_reconfigure(pf
);
4610 i40e_pf_unquiesce_all_vsi(pf
);
4614 #endif /* CONFIG_I40E_DCB */
4617 * i40e_do_reset_safe - Protected reset path for userland calls.
4618 * @pf: board private structure
4619 * @reset_flags: which reset is requested
4622 void i40e_do_reset_safe(struct i40e_pf
*pf
, u32 reset_flags
)
4625 i40e_do_reset(pf
, reset_flags
);
4630 * i40e_handle_lan_overflow_event - Handler for LAN queue overflow event
4631 * @pf: board private structure
4632 * @e: event info posted on ARQ
4634 * Handler for LAN Queue Overflow Event generated by the firmware for PF
4637 static void i40e_handle_lan_overflow_event(struct i40e_pf
*pf
,
4638 struct i40e_arq_event_info
*e
)
4640 struct i40e_aqc_lan_overflow
*data
=
4641 (struct i40e_aqc_lan_overflow
*)&e
->desc
.params
.raw
;
4642 u32 queue
= le32_to_cpu(data
->prtdcb_rupto
);
4643 u32 qtx_ctl
= le32_to_cpu(data
->otx_ctl
);
4644 struct i40e_hw
*hw
= &pf
->hw
;
4648 dev_dbg(&pf
->pdev
->dev
, "overflow Rx Queue Number = %d QTX_CTL=0x%08x\n",
4651 /* Queue belongs to VF, find the VF and issue VF reset */
4652 if (((qtx_ctl
& I40E_QTX_CTL_PFVF_Q_MASK
)
4653 >> I40E_QTX_CTL_PFVF_Q_SHIFT
) == I40E_QTX_CTL_VF_QUEUE
) {
4654 vf_id
= (u16
)((qtx_ctl
& I40E_QTX_CTL_VFVM_INDX_MASK
)
4655 >> I40E_QTX_CTL_VFVM_INDX_SHIFT
);
4656 vf_id
-= hw
->func_caps
.vf_base_id
;
4657 vf
= &pf
->vf
[vf_id
];
4658 i40e_vc_notify_vf_reset(vf
);
4659 /* Allow VF to process pending reset notification */
4661 i40e_reset_vf(vf
, false);
4666 * i40e_service_event_complete - Finish up the service event
4667 * @pf: board private structure
4669 static void i40e_service_event_complete(struct i40e_pf
*pf
)
4671 BUG_ON(!test_bit(__I40E_SERVICE_SCHED
, &pf
->state
));
4673 /* flush memory to make sure state is correct before next watchog */
4674 smp_mb__before_clear_bit();
4675 clear_bit(__I40E_SERVICE_SCHED
, &pf
->state
);
4679 * i40e_get_current_fd_count - Get the count of FD filters programmed in the HW
4680 * @pf: board private structure
4682 int i40e_get_current_fd_count(struct i40e_pf
*pf
)
4685 val
= rd32(&pf
->hw
, I40E_PFQF_FDSTAT
);
4686 fcnt_prog
= (val
& I40E_PFQF_FDSTAT_GUARANT_CNT_MASK
) +
4687 ((val
& I40E_PFQF_FDSTAT_BEST_CNT_MASK
) >>
4688 I40E_PFQF_FDSTAT_BEST_CNT_SHIFT
);
4693 * i40e_fdir_check_and_reenable - Function to reenabe FD ATR or SB if disabled
4694 * @pf: board private structure
4696 void i40e_fdir_check_and_reenable(struct i40e_pf
*pf
)
4698 u32 fcnt_prog
, fcnt_avail
;
4700 /* Check if, FD SB or ATR was auto disabled and if there is enough room
4703 if ((pf
->flags
& I40E_FLAG_FD_ATR_ENABLED
) &&
4704 (pf
->flags
& I40E_FLAG_FD_SB_ENABLED
))
4706 fcnt_prog
= i40e_get_current_fd_count(pf
);
4707 fcnt_avail
= pf
->hw
.fdir_shared_filter_count
+
4708 pf
->fdir_pf_filter_count
;
4709 if (fcnt_prog
< (fcnt_avail
- I40E_FDIR_BUFFER_HEAD_ROOM
)) {
4710 if ((pf
->flags
& I40E_FLAG_FD_SB_ENABLED
) &&
4711 (pf
->auto_disable_flags
& I40E_FLAG_FD_SB_ENABLED
)) {
4712 pf
->auto_disable_flags
&= ~I40E_FLAG_FD_SB_ENABLED
;
4713 dev_info(&pf
->pdev
->dev
, "FD Sideband/ntuple is being enabled since we have space in the table now\n");
4716 /* Wait for some more space to be available to turn on ATR */
4717 if (fcnt_prog
< (fcnt_avail
- I40E_FDIR_BUFFER_HEAD_ROOM
* 2)) {
4718 if ((pf
->flags
& I40E_FLAG_FD_ATR_ENABLED
) &&
4719 (pf
->auto_disable_flags
& I40E_FLAG_FD_ATR_ENABLED
)) {
4720 pf
->auto_disable_flags
&= ~I40E_FLAG_FD_ATR_ENABLED
;
4721 dev_info(&pf
->pdev
->dev
, "ATR is being enabled since we have space in the table now\n");
4727 * i40e_fdir_reinit_subtask - Worker thread to reinit FDIR filter table
4728 * @pf: board private structure
4730 static void i40e_fdir_reinit_subtask(struct i40e_pf
*pf
)
4732 if (!(pf
->flags
& I40E_FLAG_FDIR_REQUIRES_REINIT
))
4735 /* if interface is down do nothing */
4736 if (test_bit(__I40E_DOWN
, &pf
->state
))
4738 i40e_fdir_check_and_reenable(pf
);
4740 if ((pf
->flags
& I40E_FLAG_FD_ATR_ENABLED
) &&
4741 (pf
->flags
& I40E_FLAG_FD_SB_ENABLED
))
4742 pf
->flags
&= ~I40E_FLAG_FDIR_REQUIRES_REINIT
;
4746 * i40e_vsi_link_event - notify VSI of a link event
4747 * @vsi: vsi to be notified
4748 * @link_up: link up or down
4750 static void i40e_vsi_link_event(struct i40e_vsi
*vsi
, bool link_up
)
4755 switch (vsi
->type
) {
4757 if (!vsi
->netdev
|| !vsi
->netdev_registered
)
4761 netif_carrier_on(vsi
->netdev
);
4762 netif_tx_wake_all_queues(vsi
->netdev
);
4764 netif_carrier_off(vsi
->netdev
);
4765 netif_tx_stop_all_queues(vsi
->netdev
);
4769 case I40E_VSI_SRIOV
:
4772 case I40E_VSI_VMDQ2
:
4774 case I40E_VSI_MIRROR
:
4776 /* there is no notification for other VSIs */
4782 * i40e_veb_link_event - notify elements on the veb of a link event
4783 * @veb: veb to be notified
4784 * @link_up: link up or down
4786 static void i40e_veb_link_event(struct i40e_veb
*veb
, bool link_up
)
4791 if (!veb
|| !veb
->pf
)
4795 /* depth first... */
4796 for (i
= 0; i
< I40E_MAX_VEB
; i
++)
4797 if (pf
->veb
[i
] && (pf
->veb
[i
]->uplink_seid
== veb
->seid
))
4798 i40e_veb_link_event(pf
->veb
[i
], link_up
);
4800 /* ... now the local VSIs */
4801 for (i
= 0; i
< pf
->hw
.func_caps
.num_vsis
; i
++)
4802 if (pf
->vsi
[i
] && (pf
->vsi
[i
]->uplink_seid
== veb
->seid
))
4803 i40e_vsi_link_event(pf
->vsi
[i
], link_up
);
4807 * i40e_link_event - Update netif_carrier status
4808 * @pf: board private structure
4810 static void i40e_link_event(struct i40e_pf
*pf
)
4812 bool new_link
, old_link
;
4814 new_link
= (pf
->hw
.phy
.link_info
.link_info
& I40E_AQ_LINK_UP
);
4815 old_link
= (pf
->hw
.phy
.link_info_old
.link_info
& I40E_AQ_LINK_UP
);
4817 if (new_link
== old_link
)
4820 if (!test_bit(__I40E_DOWN
, &pf
->vsi
[pf
->lan_vsi
]->state
))
4821 netdev_info(pf
->vsi
[pf
->lan_vsi
]->netdev
,
4822 "NIC Link is %s\n", (new_link
? "Up" : "Down"));
4824 /* Notify the base of the switch tree connected to
4825 * the link. Floating VEBs are not notified.
4827 if (pf
->lan_veb
!= I40E_NO_VEB
&& pf
->veb
[pf
->lan_veb
])
4828 i40e_veb_link_event(pf
->veb
[pf
->lan_veb
], new_link
);
4830 i40e_vsi_link_event(pf
->vsi
[pf
->lan_vsi
], new_link
);
4833 i40e_vc_notify_link_state(pf
);
4835 if (pf
->flags
& I40E_FLAG_PTP
)
4836 i40e_ptp_set_increment(pf
);
4840 * i40e_check_hang_subtask - Check for hung queues and dropped interrupts
4841 * @pf: board private structure
4843 * Set the per-queue flags to request a check for stuck queues in the irq
4844 * clean functions, then force interrupts to be sure the irq clean is called.
4846 static void i40e_check_hang_subtask(struct i40e_pf
*pf
)
4850 /* If we're down or resetting, just bail */
4851 if (test_bit(__I40E_CONFIG_BUSY
, &pf
->state
))
4854 /* for each VSI/netdev
4856 * set the check flag
4858 * force an interrupt
4860 for (v
= 0; v
< pf
->hw
.func_caps
.num_vsis
; v
++) {
4861 struct i40e_vsi
*vsi
= pf
->vsi
[v
];
4865 test_bit(__I40E_DOWN
, &vsi
->state
) ||
4866 (vsi
->netdev
&& !netif_carrier_ok(vsi
->netdev
)))
4869 for (i
= 0; i
< vsi
->num_queue_pairs
; i
++) {
4870 set_check_for_tx_hang(vsi
->tx_rings
[i
]);
4871 if (test_bit(__I40E_HANG_CHECK_ARMED
,
4872 &vsi
->tx_rings
[i
]->state
))
4877 if (!(pf
->flags
& I40E_FLAG_MSIX_ENABLED
)) {
4878 wr32(&vsi
->back
->hw
, I40E_PFINT_DYN_CTL0
,
4879 (I40E_PFINT_DYN_CTL0_INTENA_MASK
|
4880 I40E_PFINT_DYN_CTL0_SWINT_TRIG_MASK
));
4882 u16 vec
= vsi
->base_vector
- 1;
4883 u32 val
= (I40E_PFINT_DYN_CTLN_INTENA_MASK
|
4884 I40E_PFINT_DYN_CTLN_SWINT_TRIG_MASK
);
4885 for (i
= 0; i
< vsi
->num_q_vectors
; i
++, vec
++)
4886 wr32(&vsi
->back
->hw
,
4887 I40E_PFINT_DYN_CTLN(vec
), val
);
4889 i40e_flush(&vsi
->back
->hw
);
4895 * i40e_watchdog_subtask - Check and bring link up
4896 * @pf: board private structure
4898 static void i40e_watchdog_subtask(struct i40e_pf
*pf
)
4902 /* if interface is down do nothing */
4903 if (test_bit(__I40E_DOWN
, &pf
->state
) ||
4904 test_bit(__I40E_CONFIG_BUSY
, &pf
->state
))
4907 /* Update the stats for active netdevs so the network stack
4908 * can look at updated numbers whenever it cares to
4910 for (i
= 0; i
< pf
->hw
.func_caps
.num_vsis
; i
++)
4911 if (pf
->vsi
[i
] && pf
->vsi
[i
]->netdev
)
4912 i40e_update_stats(pf
->vsi
[i
]);
4914 /* Update the stats for the active switching components */
4915 for (i
= 0; i
< I40E_MAX_VEB
; i
++)
4917 i40e_update_veb_stats(pf
->veb
[i
]);
4919 i40e_ptp_rx_hang(pf
->vsi
[pf
->lan_vsi
]);
4923 * i40e_reset_subtask - Set up for resetting the device and driver
4924 * @pf: board private structure
4926 static void i40e_reset_subtask(struct i40e_pf
*pf
)
4928 u32 reset_flags
= 0;
4931 if (test_bit(__I40E_REINIT_REQUESTED
, &pf
->state
)) {
4932 reset_flags
|= (1 << __I40E_REINIT_REQUESTED
);
4933 clear_bit(__I40E_REINIT_REQUESTED
, &pf
->state
);
4935 if (test_bit(__I40E_PF_RESET_REQUESTED
, &pf
->state
)) {
4936 reset_flags
|= (1 << __I40E_PF_RESET_REQUESTED
);
4937 clear_bit(__I40E_PF_RESET_REQUESTED
, &pf
->state
);
4939 if (test_bit(__I40E_CORE_RESET_REQUESTED
, &pf
->state
)) {
4940 reset_flags
|= (1 << __I40E_CORE_RESET_REQUESTED
);
4941 clear_bit(__I40E_CORE_RESET_REQUESTED
, &pf
->state
);
4943 if (test_bit(__I40E_GLOBAL_RESET_REQUESTED
, &pf
->state
)) {
4944 reset_flags
|= (1 << __I40E_GLOBAL_RESET_REQUESTED
);
4945 clear_bit(__I40E_GLOBAL_RESET_REQUESTED
, &pf
->state
);
4948 /* If there's a recovery already waiting, it takes
4949 * precedence before starting a new reset sequence.
4951 if (test_bit(__I40E_RESET_INTR_RECEIVED
, &pf
->state
)) {
4952 i40e_handle_reset_warning(pf
);
4956 /* If we're already down or resetting, just bail */
4958 !test_bit(__I40E_DOWN
, &pf
->state
) &&
4959 !test_bit(__I40E_CONFIG_BUSY
, &pf
->state
))
4960 i40e_do_reset(pf
, reset_flags
);
4967 * i40e_handle_link_event - Handle link event
4968 * @pf: board private structure
4969 * @e: event info posted on ARQ
4971 static void i40e_handle_link_event(struct i40e_pf
*pf
,
4972 struct i40e_arq_event_info
*e
)
4974 struct i40e_hw
*hw
= &pf
->hw
;
4975 struct i40e_aqc_get_link_status
*status
=
4976 (struct i40e_aqc_get_link_status
*)&e
->desc
.params
.raw
;
4977 struct i40e_link_status
*hw_link_info
= &hw
->phy
.link_info
;
4979 /* save off old link status information */
4980 memcpy(&pf
->hw
.phy
.link_info_old
, hw_link_info
,
4981 sizeof(pf
->hw
.phy
.link_info_old
));
4983 /* update link status */
4984 hw_link_info
->phy_type
= (enum i40e_aq_phy_type
)status
->phy_type
;
4985 hw_link_info
->link_speed
= (enum i40e_aq_link_speed
)status
->link_speed
;
4986 hw_link_info
->link_info
= status
->link_info
;
4987 hw_link_info
->an_info
= status
->an_info
;
4988 hw_link_info
->ext_info
= status
->ext_info
;
4989 hw_link_info
->lse_enable
=
4990 le16_to_cpu(status
->command_flags
) &
4993 /* process the event */
4994 i40e_link_event(pf
);
4996 /* Do a new status request to re-enable LSE reporting
4997 * and load new status information into the hw struct,
4998 * then see if the status changed while processing the
5001 i40e_aq_get_link_info(&pf
->hw
, true, NULL
, NULL
);
5002 i40e_link_event(pf
);
5006 * i40e_clean_adminq_subtask - Clean the AdminQ rings
5007 * @pf: board private structure
5009 static void i40e_clean_adminq_subtask(struct i40e_pf
*pf
)
5011 struct i40e_arq_event_info event
;
5012 struct i40e_hw
*hw
= &pf
->hw
;
5018 if (!test_bit(__I40E_ADMINQ_EVENT_PENDING
, &pf
->state
))
5021 event
.msg_size
= I40E_MAX_AQ_BUF_SIZE
;
5022 event
.msg_buf
= kzalloc(event
.msg_size
, GFP_KERNEL
);
5027 event
.msg_size
= I40E_MAX_AQ_BUF_SIZE
; /* reinit each time */
5028 ret
= i40e_clean_arq_element(hw
, &event
, &pending
);
5029 if (ret
== I40E_ERR_ADMIN_QUEUE_NO_WORK
) {
5030 dev_info(&pf
->pdev
->dev
, "No ARQ event found\n");
5033 dev_info(&pf
->pdev
->dev
, "ARQ event error %d\n", ret
);
5037 opcode
= le16_to_cpu(event
.desc
.opcode
);
5040 case i40e_aqc_opc_get_link_status
:
5041 i40e_handle_link_event(pf
, &event
);
5043 case i40e_aqc_opc_send_msg_to_pf
:
5044 ret
= i40e_vc_process_vf_msg(pf
,
5045 le16_to_cpu(event
.desc
.retval
),
5046 le32_to_cpu(event
.desc
.cookie_high
),
5047 le32_to_cpu(event
.desc
.cookie_low
),
5051 case i40e_aqc_opc_lldp_update_mib
:
5052 dev_dbg(&pf
->pdev
->dev
, "ARQ: Update LLDP MIB event received\n");
5053 #ifdef CONFIG_I40E_DCB
5055 ret
= i40e_handle_lldp_event(pf
, &event
);
5057 #endif /* CONFIG_I40E_DCB */
5059 case i40e_aqc_opc_event_lan_overflow
:
5060 dev_dbg(&pf
->pdev
->dev
, "ARQ LAN queue overflow event received\n");
5061 i40e_handle_lan_overflow_event(pf
, &event
);
5063 case i40e_aqc_opc_send_msg_to_peer
:
5064 dev_info(&pf
->pdev
->dev
, "ARQ: Msg from other pf\n");
5067 dev_info(&pf
->pdev
->dev
,
5068 "ARQ Error: Unknown event 0x%04x received\n",
5072 } while (pending
&& (i
++ < pf
->adminq_work_limit
));
5074 clear_bit(__I40E_ADMINQ_EVENT_PENDING
, &pf
->state
);
5075 /* re-enable Admin queue interrupt cause */
5076 val
= rd32(hw
, I40E_PFINT_ICR0_ENA
);
5077 val
|= I40E_PFINT_ICR0_ENA_ADMINQ_MASK
;
5078 wr32(hw
, I40E_PFINT_ICR0_ENA
, val
);
5081 kfree(event
.msg_buf
);
5085 * i40e_verify_eeprom - make sure eeprom is good to use
5086 * @pf: board private structure
5088 static void i40e_verify_eeprom(struct i40e_pf
*pf
)
5092 err
= i40e_diag_eeprom_test(&pf
->hw
);
5094 /* retry in case of garbage read */
5095 err
= i40e_diag_eeprom_test(&pf
->hw
);
5097 dev_info(&pf
->pdev
->dev
, "eeprom check failed (%d), Tx/Rx traffic disabled\n",
5099 set_bit(__I40E_BAD_EEPROM
, &pf
->state
);
5103 if (!err
&& test_bit(__I40E_BAD_EEPROM
, &pf
->state
)) {
5104 dev_info(&pf
->pdev
->dev
, "eeprom check passed, Tx/Rx traffic enabled\n");
5105 clear_bit(__I40E_BAD_EEPROM
, &pf
->state
);
5110 * i40e_reconstitute_veb - rebuild the VEB and anything connected to it
5111 * @veb: pointer to the VEB instance
5113 * This is a recursive function that first builds the attached VSIs then
5114 * recurses in to build the next layer of VEB. We track the connections
5115 * through our own index numbers because the seid's from the HW could
5116 * change across the reset.
5118 static int i40e_reconstitute_veb(struct i40e_veb
*veb
)
5120 struct i40e_vsi
*ctl_vsi
= NULL
;
5121 struct i40e_pf
*pf
= veb
->pf
;
5125 /* build VSI that owns this VEB, temporarily attached to base VEB */
5126 for (v
= 0; v
< pf
->hw
.func_caps
.num_vsis
&& !ctl_vsi
; v
++) {
5128 pf
->vsi
[v
]->veb_idx
== veb
->idx
&&
5129 pf
->vsi
[v
]->flags
& I40E_VSI_FLAG_VEB_OWNER
) {
5130 ctl_vsi
= pf
->vsi
[v
];
5135 dev_info(&pf
->pdev
->dev
,
5136 "missing owner VSI for veb_idx %d\n", veb
->idx
);
5138 goto end_reconstitute
;
5140 if (ctl_vsi
!= pf
->vsi
[pf
->lan_vsi
])
5141 ctl_vsi
->uplink_seid
= pf
->vsi
[pf
->lan_vsi
]->uplink_seid
;
5142 ret
= i40e_add_vsi(ctl_vsi
);
5144 dev_info(&pf
->pdev
->dev
,
5145 "rebuild of owner VSI failed: %d\n", ret
);
5146 goto end_reconstitute
;
5148 i40e_vsi_reset_stats(ctl_vsi
);
5150 /* create the VEB in the switch and move the VSI onto the VEB */
5151 ret
= i40e_add_veb(veb
, ctl_vsi
);
5153 goto end_reconstitute
;
5155 /* create the remaining VSIs attached to this VEB */
5156 for (v
= 0; v
< pf
->hw
.func_caps
.num_vsis
; v
++) {
5157 if (!pf
->vsi
[v
] || pf
->vsi
[v
] == ctl_vsi
)
5160 if (pf
->vsi
[v
]->veb_idx
== veb
->idx
) {
5161 struct i40e_vsi
*vsi
= pf
->vsi
[v
];
5162 vsi
->uplink_seid
= veb
->seid
;
5163 ret
= i40e_add_vsi(vsi
);
5165 dev_info(&pf
->pdev
->dev
,
5166 "rebuild of vsi_idx %d failed: %d\n",
5168 goto end_reconstitute
;
5170 i40e_vsi_reset_stats(vsi
);
5174 /* create any VEBs attached to this VEB - RECURSION */
5175 for (veb_idx
= 0; veb_idx
< I40E_MAX_VEB
; veb_idx
++) {
5176 if (pf
->veb
[veb_idx
] && pf
->veb
[veb_idx
]->veb_idx
== veb
->idx
) {
5177 pf
->veb
[veb_idx
]->uplink_seid
= veb
->seid
;
5178 ret
= i40e_reconstitute_veb(pf
->veb
[veb_idx
]);
5189 * i40e_get_capabilities - get info about the HW
5190 * @pf: the PF struct
5192 static int i40e_get_capabilities(struct i40e_pf
*pf
)
5194 struct i40e_aqc_list_capabilities_element_resp
*cap_buf
;
5199 buf_len
= 40 * sizeof(struct i40e_aqc_list_capabilities_element_resp
);
5201 cap_buf
= kzalloc(buf_len
, GFP_KERNEL
);
5205 /* this loads the data into the hw struct for us */
5206 err
= i40e_aq_discover_capabilities(&pf
->hw
, cap_buf
, buf_len
,
5208 i40e_aqc_opc_list_func_capabilities
,
5210 /* data loaded, buffer no longer needed */
5213 if (pf
->hw
.aq
.asq_last_status
== I40E_AQ_RC_ENOMEM
) {
5214 /* retry with a larger buffer */
5215 buf_len
= data_size
;
5216 } else if (pf
->hw
.aq
.asq_last_status
!= I40E_AQ_RC_OK
) {
5217 dev_info(&pf
->pdev
->dev
,
5218 "capability discovery failed: aq=%d\n",
5219 pf
->hw
.aq
.asq_last_status
);
5224 /* increment MSI-X count because current FW skips one */
5225 pf
->hw
.func_caps
.num_msix_vectors
++;
5227 if (((pf
->hw
.aq
.fw_maj_ver
== 2) && (pf
->hw
.aq
.fw_min_ver
< 22)) ||
5228 (pf
->hw
.aq
.fw_maj_ver
< 2)) {
5229 pf
->hw
.func_caps
.num_msix_vectors
++;
5230 pf
->hw
.func_caps
.num_msix_vectors_vf
++;
5233 if (pf
->hw
.debug_mask
& I40E_DEBUG_USER
)
5234 dev_info(&pf
->pdev
->dev
,
5235 "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",
5236 pf
->hw
.pf_id
, pf
->hw
.func_caps
.num_vfs
,
5237 pf
->hw
.func_caps
.num_msix_vectors
,
5238 pf
->hw
.func_caps
.num_msix_vectors_vf
,
5239 pf
->hw
.func_caps
.fd_filters_guaranteed
,
5240 pf
->hw
.func_caps
.fd_filters_best_effort
,
5241 pf
->hw
.func_caps
.num_tx_qp
,
5242 pf
->hw
.func_caps
.num_vsis
);
5244 #define DEF_NUM_VSI (1 + (pf->hw.func_caps.fcoe ? 1 : 0) \
5245 + pf->hw.func_caps.num_vfs)
5246 if (pf
->hw
.revision_id
== 0 && (DEF_NUM_VSI
> pf
->hw
.func_caps
.num_vsis
)) {
5247 dev_info(&pf
->pdev
->dev
,
5248 "got num_vsis %d, setting num_vsis to %d\n",
5249 pf
->hw
.func_caps
.num_vsis
, DEF_NUM_VSI
);
5250 pf
->hw
.func_caps
.num_vsis
= DEF_NUM_VSI
;
5256 static int i40e_vsi_clear(struct i40e_vsi
*vsi
);
5259 * i40e_fdir_sb_setup - initialize the Flow Director resources for Sideband
5260 * @pf: board private structure
5262 static void i40e_fdir_sb_setup(struct i40e_pf
*pf
)
5264 struct i40e_vsi
*vsi
;
5265 bool new_vsi
= false;
5268 if (!(pf
->flags
& I40E_FLAG_FD_SB_ENABLED
))
5271 /* find existing VSI and see if it needs configuring */
5273 for (i
= 0; i
< pf
->hw
.func_caps
.num_vsis
; i
++) {
5274 if (pf
->vsi
[i
] && pf
->vsi
[i
]->type
== I40E_VSI_FDIR
) {
5280 /* create a new VSI if none exists */
5282 vsi
= i40e_vsi_setup(pf
, I40E_VSI_FDIR
,
5283 pf
->vsi
[pf
->lan_vsi
]->seid
, 0);
5285 dev_info(&pf
->pdev
->dev
, "Couldn't create FDir VSI\n");
5290 i40e_vsi_setup_irqhandler(vsi
, i40e_fdir_clean_ring
);
5292 err
= i40e_vsi_setup_tx_resources(vsi
);
5295 err
= i40e_vsi_setup_rx_resources(vsi
);
5300 char int_name
[IFNAMSIZ
+ 9];
5301 err
= i40e_vsi_configure(vsi
);
5304 snprintf(int_name
, sizeof(int_name
) - 1, "%s-fdir",
5305 dev_driver_string(&pf
->pdev
->dev
));
5306 err
= i40e_vsi_request_irq(vsi
, int_name
);
5309 err
= i40e_up_complete(vsi
);
5311 goto err_up_complete
;
5312 clear_bit(__I40E_NEEDS_RESTART
, &vsi
->state
);
5319 i40e_vsi_free_irq(vsi
);
5321 i40e_vsi_free_rx_resources(vsi
);
5323 i40e_vsi_free_tx_resources(vsi
);
5325 pf
->flags
&= ~I40E_FLAG_FD_SB_ENABLED
;
5326 i40e_vsi_clear(vsi
);
5330 * i40e_fdir_teardown - release the Flow Director resources
5331 * @pf: board private structure
5333 static void i40e_fdir_teardown(struct i40e_pf
*pf
)
5337 i40e_fdir_filter_exit(pf
);
5338 for (i
= 0; i
< pf
->hw
.func_caps
.num_vsis
; i
++) {
5339 if (pf
->vsi
[i
] && pf
->vsi
[i
]->type
== I40E_VSI_FDIR
) {
5340 i40e_vsi_release(pf
->vsi
[i
]);
5347 * i40e_prep_for_reset - prep for the core to reset
5348 * @pf: board private structure
5350 * Close up the VFs and other things in prep for pf Reset.
5352 static int i40e_prep_for_reset(struct i40e_pf
*pf
)
5354 struct i40e_hw
*hw
= &pf
->hw
;
5358 clear_bit(__I40E_RESET_INTR_RECEIVED
, &pf
->state
);
5359 if (test_and_set_bit(__I40E_RESET_RECOVERY_PENDING
, &pf
->state
))
5362 dev_dbg(&pf
->pdev
->dev
, "Tearing down internal switch for reset\n");
5364 if (i40e_check_asq_alive(hw
))
5365 i40e_vc_notify_reset(pf
);
5367 /* quiesce the VSIs and their queues that are not already DOWN */
5368 i40e_pf_quiesce_all_vsi(pf
);
5370 for (v
= 0; v
< pf
->hw
.func_caps
.num_vsis
; v
++) {
5372 pf
->vsi
[v
]->seid
= 0;
5375 i40e_shutdown_adminq(&pf
->hw
);
5377 /* call shutdown HMC */
5378 ret
= i40e_shutdown_lan_hmc(hw
);
5380 dev_info(&pf
->pdev
->dev
, "shutdown_lan_hmc failed: %d\n", ret
);
5381 clear_bit(__I40E_RESET_RECOVERY_PENDING
, &pf
->state
);
5387 * i40e_reset_and_rebuild - reset and rebuild using a saved config
5388 * @pf: board private structure
5389 * @reinit: if the Main VSI needs to re-initialized.
5391 static void i40e_reset_and_rebuild(struct i40e_pf
*pf
, bool reinit
)
5393 struct i40e_driver_version dv
;
5394 struct i40e_hw
*hw
= &pf
->hw
;
5398 /* Now we wait for GRST to settle out.
5399 * We don't have to delete the VEBs or VSIs from the hw switch
5400 * because the reset will make them disappear.
5402 ret
= i40e_pf_reset(hw
);
5404 dev_info(&pf
->pdev
->dev
, "PF reset failed, %d\n", ret
);
5407 if (test_bit(__I40E_DOWN
, &pf
->state
))
5408 goto end_core_reset
;
5409 dev_dbg(&pf
->pdev
->dev
, "Rebuilding internal switch\n");
5411 /* rebuild the basics for the AdminQ, HMC, and initial HW switch */
5412 ret
= i40e_init_adminq(&pf
->hw
);
5414 dev_info(&pf
->pdev
->dev
, "Rebuild AdminQ failed, %d\n", ret
);
5415 goto end_core_reset
;
5418 /* re-verify the eeprom if we just had an EMP reset */
5419 if (test_bit(__I40E_EMP_RESET_REQUESTED
, &pf
->state
)) {
5420 clear_bit(__I40E_EMP_RESET_REQUESTED
, &pf
->state
);
5421 i40e_verify_eeprom(pf
);
5424 ret
= i40e_get_capabilities(pf
);
5426 dev_info(&pf
->pdev
->dev
, "i40e_get_capabilities failed, %d\n",
5428 goto end_core_reset
;
5431 ret
= i40e_init_lan_hmc(hw
, hw
->func_caps
.num_tx_qp
,
5432 hw
->func_caps
.num_rx_qp
,
5433 pf
->fcoe_hmc_cntx_num
, pf
->fcoe_hmc_filt_num
);
5435 dev_info(&pf
->pdev
->dev
, "init_lan_hmc failed: %d\n", ret
);
5436 goto end_core_reset
;
5438 ret
= i40e_configure_lan_hmc(hw
, I40E_HMC_MODEL_DIRECT_ONLY
);
5440 dev_info(&pf
->pdev
->dev
, "configure_lan_hmc failed: %d\n", ret
);
5441 goto end_core_reset
;
5444 #ifdef CONFIG_I40E_DCB
5445 ret
= i40e_init_pf_dcb(pf
);
5447 dev_info(&pf
->pdev
->dev
, "init_pf_dcb failed: %d\n", ret
);
5448 goto end_core_reset
;
5450 #endif /* CONFIG_I40E_DCB */
5452 /* do basic switch setup */
5453 ret
= i40e_setup_pf_switch(pf
, reinit
);
5455 goto end_core_reset
;
5457 /* Rebuild the VSIs and VEBs that existed before reset.
5458 * They are still in our local switch element arrays, so only
5459 * need to rebuild the switch model in the HW.
5461 * If there were VEBs but the reconstitution failed, we'll try
5462 * try to recover minimal use by getting the basic PF VSI working.
5464 if (pf
->vsi
[pf
->lan_vsi
]->uplink_seid
!= pf
->mac_seid
) {
5465 dev_dbg(&pf
->pdev
->dev
, "attempting to rebuild switch\n");
5466 /* find the one VEB connected to the MAC, and find orphans */
5467 for (v
= 0; v
< I40E_MAX_VEB
; v
++) {
5471 if (pf
->veb
[v
]->uplink_seid
== pf
->mac_seid
||
5472 pf
->veb
[v
]->uplink_seid
== 0) {
5473 ret
= i40e_reconstitute_veb(pf
->veb
[v
]);
5478 /* If Main VEB failed, we're in deep doodoo,
5479 * so give up rebuilding the switch and set up
5480 * for minimal rebuild of PF VSI.
5481 * If orphan failed, we'll report the error
5482 * but try to keep going.
5484 if (pf
->veb
[v
]->uplink_seid
== pf
->mac_seid
) {
5485 dev_info(&pf
->pdev
->dev
,
5486 "rebuild of switch failed: %d, will try to set up simple PF connection\n",
5488 pf
->vsi
[pf
->lan_vsi
]->uplink_seid
5491 } else if (pf
->veb
[v
]->uplink_seid
== 0) {
5492 dev_info(&pf
->pdev
->dev
,
5493 "rebuild of orphan VEB failed: %d\n",
5500 if (pf
->vsi
[pf
->lan_vsi
]->uplink_seid
== pf
->mac_seid
) {
5501 dev_info(&pf
->pdev
->dev
, "attempting to rebuild PF VSI\n");
5502 /* no VEB, so rebuild only the Main VSI */
5503 ret
= i40e_add_vsi(pf
->vsi
[pf
->lan_vsi
]);
5505 dev_info(&pf
->pdev
->dev
,
5506 "rebuild of Main VSI failed: %d\n", ret
);
5507 goto end_core_reset
;
5511 /* reinit the misc interrupt */
5512 if (pf
->flags
& I40E_FLAG_MSIX_ENABLED
)
5513 ret
= i40e_setup_misc_vector(pf
);
5515 /* restart the VSIs that were rebuilt and running before the reset */
5516 i40e_pf_unquiesce_all_vsi(pf
);
5518 if (pf
->num_alloc_vfs
) {
5519 for (v
= 0; v
< pf
->num_alloc_vfs
; v
++)
5520 i40e_reset_vf(&pf
->vf
[v
], true);
5523 /* tell the firmware that we're starting */
5524 dv
.major_version
= DRV_VERSION_MAJOR
;
5525 dv
.minor_version
= DRV_VERSION_MINOR
;
5526 dv
.build_version
= DRV_VERSION_BUILD
;
5527 dv
.subbuild_version
= 0;
5528 i40e_aq_send_driver_version(&pf
->hw
, &dv
, NULL
);
5530 dev_info(&pf
->pdev
->dev
, "reset complete\n");
5533 clear_bit(__I40E_RESET_RECOVERY_PENDING
, &pf
->state
);
5537 * i40e_handle_reset_warning - prep for the pf to reset, reset and rebuild
5538 * @pf: board private structure
5540 * Close up the VFs and other things in prep for a Core Reset,
5541 * then get ready to rebuild the world.
5543 static void i40e_handle_reset_warning(struct i40e_pf
*pf
)
5547 ret
= i40e_prep_for_reset(pf
);
5549 i40e_reset_and_rebuild(pf
, false);
5553 * i40e_handle_mdd_event
5554 * @pf: pointer to the pf structure
5556 * Called from the MDD irq handler to identify possibly malicious vfs
5558 static void i40e_handle_mdd_event(struct i40e_pf
*pf
)
5560 struct i40e_hw
*hw
= &pf
->hw
;
5561 bool mdd_detected
= false;
5566 if (!test_bit(__I40E_MDD_EVENT_PENDING
, &pf
->state
))
5569 /* find what triggered the MDD event */
5570 reg
= rd32(hw
, I40E_GL_MDET_TX
);
5571 if (reg
& I40E_GL_MDET_TX_VALID_MASK
) {
5572 u8 func
= (reg
& I40E_GL_MDET_TX_FUNCTION_MASK
)
5573 >> I40E_GL_MDET_TX_FUNCTION_SHIFT
;
5574 u8 event
= (reg
& I40E_GL_MDET_TX_EVENT_SHIFT
)
5575 >> I40E_GL_MDET_TX_EVENT_SHIFT
;
5576 u8 queue
= (reg
& I40E_GL_MDET_TX_QUEUE_MASK
)
5577 >> I40E_GL_MDET_TX_QUEUE_SHIFT
;
5578 dev_info(&pf
->pdev
->dev
,
5579 "Malicious Driver Detection event 0x%02x on TX queue %d of function 0x%02x\n",
5580 event
, queue
, func
);
5581 wr32(hw
, I40E_GL_MDET_TX
, 0xffffffff);
5582 mdd_detected
= true;
5584 reg
= rd32(hw
, I40E_GL_MDET_RX
);
5585 if (reg
& I40E_GL_MDET_RX_VALID_MASK
) {
5586 u8 func
= (reg
& I40E_GL_MDET_RX_FUNCTION_MASK
)
5587 >> I40E_GL_MDET_RX_FUNCTION_SHIFT
;
5588 u8 event
= (reg
& I40E_GL_MDET_RX_EVENT_SHIFT
)
5589 >> I40E_GL_MDET_RX_EVENT_SHIFT
;
5590 u8 queue
= (reg
& I40E_GL_MDET_RX_QUEUE_MASK
)
5591 >> I40E_GL_MDET_RX_QUEUE_SHIFT
;
5592 dev_info(&pf
->pdev
->dev
,
5593 "Malicious Driver Detection event 0x%02x on RX queue %d of function 0x%02x\n",
5594 event
, queue
, func
);
5595 wr32(hw
, I40E_GL_MDET_RX
, 0xffffffff);
5596 mdd_detected
= true;
5599 /* see if one of the VFs needs its hand slapped */
5600 for (i
= 0; i
< pf
->num_alloc_vfs
&& mdd_detected
; i
++) {
5602 reg
= rd32(hw
, I40E_VP_MDET_TX(i
));
5603 if (reg
& I40E_VP_MDET_TX_VALID_MASK
) {
5604 wr32(hw
, I40E_VP_MDET_TX(i
), 0xFFFF);
5605 vf
->num_mdd_events
++;
5606 dev_info(&pf
->pdev
->dev
, "MDD TX event on VF %d\n", i
);
5609 reg
= rd32(hw
, I40E_VP_MDET_RX(i
));
5610 if (reg
& I40E_VP_MDET_RX_VALID_MASK
) {
5611 wr32(hw
, I40E_VP_MDET_RX(i
), 0xFFFF);
5612 vf
->num_mdd_events
++;
5613 dev_info(&pf
->pdev
->dev
, "MDD RX event on VF %d\n", i
);
5616 if (vf
->num_mdd_events
> I40E_DEFAULT_NUM_MDD_EVENTS_ALLOWED
) {
5617 dev_info(&pf
->pdev
->dev
,
5618 "Too many MDD events on VF %d, disabled\n", i
);
5619 dev_info(&pf
->pdev
->dev
,
5620 "Use PF Control I/F to re-enable the VF\n");
5621 set_bit(I40E_VF_STAT_DISABLED
, &vf
->vf_states
);
5625 /* re-enable mdd interrupt cause */
5626 clear_bit(__I40E_MDD_EVENT_PENDING
, &pf
->state
);
5627 reg
= rd32(hw
, I40E_PFINT_ICR0_ENA
);
5628 reg
|= I40E_PFINT_ICR0_ENA_MAL_DETECT_MASK
;
5629 wr32(hw
, I40E_PFINT_ICR0_ENA
, reg
);
5633 #ifdef CONFIG_I40E_VXLAN
5635 * i40e_sync_vxlan_filters_subtask - Sync the VSI filter list with HW
5636 * @pf: board private structure
5638 static void i40e_sync_vxlan_filters_subtask(struct i40e_pf
*pf
)
5640 const int vxlan_hdr_qwords
= 4;
5641 struct i40e_hw
*hw
= &pf
->hw
;
5647 if (!(pf
->flags
& I40E_FLAG_VXLAN_FILTER_SYNC
))
5650 pf
->flags
&= ~I40E_FLAG_VXLAN_FILTER_SYNC
;
5652 for (i
= 0; i
< I40E_MAX_PF_UDP_OFFLOAD_PORTS
; i
++) {
5653 if (pf
->pending_vxlan_bitmap
& (1 << i
)) {
5654 pf
->pending_vxlan_bitmap
&= ~(1 << i
);
5655 port
= pf
->vxlan_ports
[i
];
5657 i40e_aq_add_udp_tunnel(hw
, ntohs(port
),
5659 I40E_AQC_TUNNEL_TYPE_VXLAN
,
5660 &filter_index
, NULL
)
5661 : i40e_aq_del_udp_tunnel(hw
, i
, NULL
);
5664 dev_info(&pf
->pdev
->dev
, "Failed to execute AQ command for %s port %d with index %d\n",
5665 port
? "adding" : "deleting",
5666 ntohs(port
), port
? i
: i
);
5668 pf
->vxlan_ports
[i
] = 0;
5670 dev_info(&pf
->pdev
->dev
, "%s port %d with AQ command with index %d\n",
5671 port
? "Added" : "Deleted",
5672 ntohs(port
), port
? i
: filter_index
);
5680 * i40e_service_task - Run the driver's async subtasks
5681 * @work: pointer to work_struct containing our data
5683 static void i40e_service_task(struct work_struct
*work
)
5685 struct i40e_pf
*pf
= container_of(work
,
5688 unsigned long start_time
= jiffies
;
5690 i40e_reset_subtask(pf
);
5691 i40e_handle_mdd_event(pf
);
5692 i40e_vc_process_vflr_event(pf
);
5693 i40e_watchdog_subtask(pf
);
5694 i40e_fdir_reinit_subtask(pf
);
5695 i40e_check_hang_subtask(pf
);
5696 i40e_sync_filters_subtask(pf
);
5697 #ifdef CONFIG_I40E_VXLAN
5698 i40e_sync_vxlan_filters_subtask(pf
);
5700 i40e_clean_adminq_subtask(pf
);
5702 i40e_service_event_complete(pf
);
5704 /* If the tasks have taken longer than one timer cycle or there
5705 * is more work to be done, reschedule the service task now
5706 * rather than wait for the timer to tick again.
5708 if (time_after(jiffies
, (start_time
+ pf
->service_timer_period
)) ||
5709 test_bit(__I40E_ADMINQ_EVENT_PENDING
, &pf
->state
) ||
5710 test_bit(__I40E_MDD_EVENT_PENDING
, &pf
->state
) ||
5711 test_bit(__I40E_VFLR_EVENT_PENDING
, &pf
->state
))
5712 i40e_service_event_schedule(pf
);
5716 * i40e_service_timer - timer callback
5717 * @data: pointer to PF struct
5719 static void i40e_service_timer(unsigned long data
)
5721 struct i40e_pf
*pf
= (struct i40e_pf
*)data
;
5723 mod_timer(&pf
->service_timer
,
5724 round_jiffies(jiffies
+ pf
->service_timer_period
));
5725 i40e_service_event_schedule(pf
);
5729 * i40e_set_num_rings_in_vsi - Determine number of rings in the VSI
5730 * @vsi: the VSI being configured
5732 static int i40e_set_num_rings_in_vsi(struct i40e_vsi
*vsi
)
5734 struct i40e_pf
*pf
= vsi
->back
;
5736 switch (vsi
->type
) {
5738 vsi
->alloc_queue_pairs
= pf
->num_lan_qps
;
5739 vsi
->num_desc
= ALIGN(I40E_DEFAULT_NUM_DESCRIPTORS
,
5740 I40E_REQ_DESCRIPTOR_MULTIPLE
);
5741 if (pf
->flags
& I40E_FLAG_MSIX_ENABLED
)
5742 vsi
->num_q_vectors
= pf
->num_lan_msix
;
5744 vsi
->num_q_vectors
= 1;
5749 vsi
->alloc_queue_pairs
= 1;
5750 vsi
->num_desc
= ALIGN(I40E_FDIR_RING_COUNT
,
5751 I40E_REQ_DESCRIPTOR_MULTIPLE
);
5752 vsi
->num_q_vectors
= 1;
5755 case I40E_VSI_VMDQ2
:
5756 vsi
->alloc_queue_pairs
= pf
->num_vmdq_qps
;
5757 vsi
->num_desc
= ALIGN(I40E_DEFAULT_NUM_DESCRIPTORS
,
5758 I40E_REQ_DESCRIPTOR_MULTIPLE
);
5759 vsi
->num_q_vectors
= pf
->num_vmdq_msix
;
5762 case I40E_VSI_SRIOV
:
5763 vsi
->alloc_queue_pairs
= pf
->num_vf_qps
;
5764 vsi
->num_desc
= ALIGN(I40E_DEFAULT_NUM_DESCRIPTORS
,
5765 I40E_REQ_DESCRIPTOR_MULTIPLE
);
5777 * i40e_vsi_alloc_arrays - Allocate queue and vector pointer arrays for the vsi
5778 * @type: VSI pointer
5779 * @alloc_qvectors: a bool to specify if q_vectors need to be allocated.
5781 * On error: returns error code (negative)
5782 * On success: returns 0
5784 static int i40e_vsi_alloc_arrays(struct i40e_vsi
*vsi
, bool alloc_qvectors
)
5789 /* allocate memory for both Tx and Rx ring pointers */
5790 size
= sizeof(struct i40e_ring
*) * vsi
->alloc_queue_pairs
* 2;
5791 vsi
->tx_rings
= kzalloc(size
, GFP_KERNEL
);
5794 vsi
->rx_rings
= &vsi
->tx_rings
[vsi
->alloc_queue_pairs
];
5796 if (alloc_qvectors
) {
5797 /* allocate memory for q_vector pointers */
5798 size
= sizeof(struct i40e_q_vectors
*) * vsi
->num_q_vectors
;
5799 vsi
->q_vectors
= kzalloc(size
, GFP_KERNEL
);
5800 if (!vsi
->q_vectors
) {
5808 kfree(vsi
->tx_rings
);
5813 * i40e_vsi_mem_alloc - Allocates the next available struct vsi in the PF
5814 * @pf: board private structure
5815 * @type: type of VSI
5817 * On error: returns error code (negative)
5818 * On success: returns vsi index in PF (positive)
5820 static int i40e_vsi_mem_alloc(struct i40e_pf
*pf
, enum i40e_vsi_type type
)
5823 struct i40e_vsi
*vsi
;
5827 /* Need to protect the allocation of the VSIs at the PF level */
5828 mutex_lock(&pf
->switch_mutex
);
5830 /* VSI list may be fragmented if VSI creation/destruction has
5831 * been happening. We can afford to do a quick scan to look
5832 * for any free VSIs in the list.
5834 * find next empty vsi slot, looping back around if necessary
5837 while (i
< pf
->hw
.func_caps
.num_vsis
&& pf
->vsi
[i
])
5839 if (i
>= pf
->hw
.func_caps
.num_vsis
) {
5841 while (i
< pf
->next_vsi
&& pf
->vsi
[i
])
5845 if (i
< pf
->hw
.func_caps
.num_vsis
&& !pf
->vsi
[i
]) {
5846 vsi_idx
= i
; /* Found one! */
5849 goto unlock_pf
; /* out of VSI slots! */
5853 vsi
= kzalloc(sizeof(*vsi
), GFP_KERNEL
);
5860 set_bit(__I40E_DOWN
, &vsi
->state
);
5863 vsi
->rx_itr_setting
= pf
->rx_itr_default
;
5864 vsi
->tx_itr_setting
= pf
->tx_itr_default
;
5865 vsi
->netdev_registered
= false;
5866 vsi
->work_limit
= I40E_DEFAULT_IRQ_WORK
;
5867 INIT_LIST_HEAD(&vsi
->mac_filter_list
);
5869 ret
= i40e_set_num_rings_in_vsi(vsi
);
5873 ret
= i40e_vsi_alloc_arrays(vsi
, true);
5877 /* Setup default MSIX irq handler for VSI */
5878 i40e_vsi_setup_irqhandler(vsi
, i40e_msix_clean_rings
);
5880 pf
->vsi
[vsi_idx
] = vsi
;
5885 pf
->next_vsi
= i
- 1;
5888 mutex_unlock(&pf
->switch_mutex
);
5893 * i40e_vsi_free_arrays - Free queue and vector pointer arrays for the VSI
5894 * @type: VSI pointer
5895 * @free_qvectors: a bool to specify if q_vectors need to be freed.
5897 * On error: returns error code (negative)
5898 * On success: returns 0
5900 static void i40e_vsi_free_arrays(struct i40e_vsi
*vsi
, bool free_qvectors
)
5902 /* free the ring and vector containers */
5903 if (free_qvectors
) {
5904 kfree(vsi
->q_vectors
);
5905 vsi
->q_vectors
= NULL
;
5907 kfree(vsi
->tx_rings
);
5908 vsi
->tx_rings
= NULL
;
5909 vsi
->rx_rings
= NULL
;
5913 * i40e_vsi_clear - Deallocate the VSI provided
5914 * @vsi: the VSI being un-configured
5916 static int i40e_vsi_clear(struct i40e_vsi
*vsi
)
5927 mutex_lock(&pf
->switch_mutex
);
5928 if (!pf
->vsi
[vsi
->idx
]) {
5929 dev_err(&pf
->pdev
->dev
, "pf->vsi[%d] is NULL, just free vsi[%d](%p,type %d)\n",
5930 vsi
->idx
, vsi
->idx
, vsi
, vsi
->type
);
5934 if (pf
->vsi
[vsi
->idx
] != vsi
) {
5935 dev_err(&pf
->pdev
->dev
,
5936 "pf->vsi[%d](%p, type %d) != vsi[%d](%p,type %d): no free!\n",
5937 pf
->vsi
[vsi
->idx
]->idx
,
5939 pf
->vsi
[vsi
->idx
]->type
,
5940 vsi
->idx
, vsi
, vsi
->type
);
5944 /* updates the pf for this cleared vsi */
5945 i40e_put_lump(pf
->qp_pile
, vsi
->base_queue
, vsi
->idx
);
5946 i40e_put_lump(pf
->irq_pile
, vsi
->base_vector
, vsi
->idx
);
5948 i40e_vsi_free_arrays(vsi
, true);
5950 pf
->vsi
[vsi
->idx
] = NULL
;
5951 if (vsi
->idx
< pf
->next_vsi
)
5952 pf
->next_vsi
= vsi
->idx
;
5955 mutex_unlock(&pf
->switch_mutex
);
5963 * i40e_vsi_clear_rings - Deallocates the Rx and Tx rings for the provided VSI
5964 * @vsi: the VSI being cleaned
5966 static void i40e_vsi_clear_rings(struct i40e_vsi
*vsi
)
5970 if (vsi
->tx_rings
&& vsi
->tx_rings
[0]) {
5971 for (i
= 0; i
< vsi
->alloc_queue_pairs
; i
++) {
5972 kfree_rcu(vsi
->tx_rings
[i
], rcu
);
5973 vsi
->tx_rings
[i
] = NULL
;
5974 vsi
->rx_rings
[i
] = NULL
;
5980 * i40e_alloc_rings - Allocates the Rx and Tx rings for the provided VSI
5981 * @vsi: the VSI being configured
5983 static int i40e_alloc_rings(struct i40e_vsi
*vsi
)
5985 struct i40e_pf
*pf
= vsi
->back
;
5988 /* Set basic values in the rings to be used later during open() */
5989 for (i
= 0; i
< vsi
->alloc_queue_pairs
; i
++) {
5990 struct i40e_ring
*tx_ring
;
5991 struct i40e_ring
*rx_ring
;
5993 /* allocate space for both Tx and Rx in one shot */
5994 tx_ring
= kzalloc(sizeof(struct i40e_ring
) * 2, GFP_KERNEL
);
5998 tx_ring
->queue_index
= i
;
5999 tx_ring
->reg_idx
= vsi
->base_queue
+ i
;
6000 tx_ring
->ring_active
= false;
6002 tx_ring
->netdev
= vsi
->netdev
;
6003 tx_ring
->dev
= &pf
->pdev
->dev
;
6004 tx_ring
->count
= vsi
->num_desc
;
6006 tx_ring
->dcb_tc
= 0;
6007 vsi
->tx_rings
[i
] = tx_ring
;
6009 rx_ring
= &tx_ring
[1];
6010 rx_ring
->queue_index
= i
;
6011 rx_ring
->reg_idx
= vsi
->base_queue
+ i
;
6012 rx_ring
->ring_active
= false;
6014 rx_ring
->netdev
= vsi
->netdev
;
6015 rx_ring
->dev
= &pf
->pdev
->dev
;
6016 rx_ring
->count
= vsi
->num_desc
;
6018 rx_ring
->dcb_tc
= 0;
6019 if (pf
->flags
& I40E_FLAG_16BYTE_RX_DESC_ENABLED
)
6020 set_ring_16byte_desc_enabled(rx_ring
);
6022 clear_ring_16byte_desc_enabled(rx_ring
);
6023 vsi
->rx_rings
[i
] = rx_ring
;
6029 i40e_vsi_clear_rings(vsi
);
6034 * i40e_reserve_msix_vectors - Reserve MSI-X vectors in the kernel
6035 * @pf: board private structure
6036 * @vectors: the number of MSI-X vectors to request
6038 * Returns the number of vectors reserved, or error
6040 static int i40e_reserve_msix_vectors(struct i40e_pf
*pf
, int vectors
)
6042 vectors
= pci_enable_msix_range(pf
->pdev
, pf
->msix_entries
,
6043 I40E_MIN_MSIX
, vectors
);
6045 dev_info(&pf
->pdev
->dev
,
6046 "MSI-X vector reservation failed: %d\n", vectors
);
6050 pf
->num_msix_entries
= vectors
;
6056 * i40e_init_msix - Setup the MSIX capability
6057 * @pf: board private structure
6059 * Work with the OS to set up the MSIX vectors needed.
6061 * Returns 0 on success, negative on failure
6063 static int i40e_init_msix(struct i40e_pf
*pf
)
6065 i40e_status err
= 0;
6066 struct i40e_hw
*hw
= &pf
->hw
;
6070 if (!(pf
->flags
& I40E_FLAG_MSIX_ENABLED
))
6073 /* The number of vectors we'll request will be comprised of:
6074 * - Add 1 for "other" cause for Admin Queue events, etc.
6075 * - The number of LAN queue pairs
6076 * - Queues being used for RSS.
6077 * We don't need as many as max_rss_size vectors.
6078 * use rss_size instead in the calculation since that
6079 * is governed by number of cpus in the system.
6080 * - assumes symmetric Tx/Rx pairing
6081 * - The number of VMDq pairs
6082 * Once we count this up, try the request.
6084 * If we can't get what we want, we'll simplify to nearly nothing
6085 * and try again. If that still fails, we punt.
6087 pf
->num_lan_msix
= pf
->num_lan_qps
- (pf
->rss_size_max
- pf
->rss_size
);
6088 pf
->num_vmdq_msix
= pf
->num_vmdq_qps
;
6089 v_budget
= 1 + pf
->num_lan_msix
;
6090 v_budget
+= (pf
->num_vmdq_vsis
* pf
->num_vmdq_msix
);
6091 if (pf
->flags
& I40E_FLAG_FD_SB_ENABLED
)
6094 /* Scale down if necessary, and the rings will share vectors */
6095 v_budget
= min_t(int, v_budget
, hw
->func_caps
.num_msix_vectors
);
6097 pf
->msix_entries
= kcalloc(v_budget
, sizeof(struct msix_entry
),
6099 if (!pf
->msix_entries
)
6102 for (i
= 0; i
< v_budget
; i
++)
6103 pf
->msix_entries
[i
].entry
= i
;
6104 vec
= i40e_reserve_msix_vectors(pf
, v_budget
);
6105 if (vec
< I40E_MIN_MSIX
) {
6106 pf
->flags
&= ~I40E_FLAG_MSIX_ENABLED
;
6107 kfree(pf
->msix_entries
);
6108 pf
->msix_entries
= NULL
;
6111 } else if (vec
== I40E_MIN_MSIX
) {
6112 /* Adjust for minimal MSIX use */
6113 dev_info(&pf
->pdev
->dev
, "Features disabled, not enough MSI-X vectors\n");
6114 pf
->flags
&= ~I40E_FLAG_VMDQ_ENABLED
;
6115 pf
->num_vmdq_vsis
= 0;
6116 pf
->num_vmdq_qps
= 0;
6117 pf
->num_vmdq_msix
= 0;
6118 pf
->num_lan_qps
= 1;
6119 pf
->num_lan_msix
= 1;
6121 } else if (vec
!= v_budget
) {
6122 /* Scale vector usage down */
6123 pf
->num_vmdq_msix
= 1; /* force VMDqs to only one vector */
6124 vec
--; /* reserve the misc vector */
6126 /* partition out the remaining vectors */
6129 pf
->num_vmdq_vsis
= 1;
6130 pf
->num_lan_msix
= 1;
6133 pf
->num_vmdq_vsis
= 1;
6134 pf
->num_lan_msix
= 2;
6137 pf
->num_lan_msix
= min_t(int, (vec
/ 2),
6139 pf
->num_vmdq_vsis
= min_t(int, (vec
- pf
->num_lan_msix
),
6140 I40E_DEFAULT_NUM_VMDQ_VSI
);
6149 * i40e_vsi_alloc_q_vector - Allocate memory for a single interrupt vector
6150 * @vsi: the VSI being configured
6151 * @v_idx: index of the vector in the vsi struct
6153 * We allocate one q_vector. If allocation fails we return -ENOMEM.
6155 static int i40e_vsi_alloc_q_vector(struct i40e_vsi
*vsi
, int v_idx
)
6157 struct i40e_q_vector
*q_vector
;
6159 /* allocate q_vector */
6160 q_vector
= kzalloc(sizeof(struct i40e_q_vector
), GFP_KERNEL
);
6164 q_vector
->vsi
= vsi
;
6165 q_vector
->v_idx
= v_idx
;
6166 cpumask_set_cpu(v_idx
, &q_vector
->affinity_mask
);
6168 netif_napi_add(vsi
->netdev
, &q_vector
->napi
,
6169 i40e_napi_poll
, vsi
->work_limit
);
6171 q_vector
->rx
.latency_range
= I40E_LOW_LATENCY
;
6172 q_vector
->tx
.latency_range
= I40E_LOW_LATENCY
;
6174 /* tie q_vector and vsi together */
6175 vsi
->q_vectors
[v_idx
] = q_vector
;
6181 * i40e_vsi_alloc_q_vectors - Allocate memory for interrupt vectors
6182 * @vsi: the VSI being configured
6184 * We allocate one q_vector per queue interrupt. If allocation fails we
6187 static int i40e_vsi_alloc_q_vectors(struct i40e_vsi
*vsi
)
6189 struct i40e_pf
*pf
= vsi
->back
;
6190 int v_idx
, num_q_vectors
;
6193 /* if not MSIX, give the one vector only to the LAN VSI */
6194 if (pf
->flags
& I40E_FLAG_MSIX_ENABLED
)
6195 num_q_vectors
= vsi
->num_q_vectors
;
6196 else if (vsi
== pf
->vsi
[pf
->lan_vsi
])
6201 for (v_idx
= 0; v_idx
< num_q_vectors
; v_idx
++) {
6202 err
= i40e_vsi_alloc_q_vector(vsi
, v_idx
);
6211 i40e_free_q_vector(vsi
, v_idx
);
6217 * i40e_init_interrupt_scheme - Determine proper interrupt scheme
6218 * @pf: board private structure to initialize
6220 static void i40e_init_interrupt_scheme(struct i40e_pf
*pf
)
6224 if (pf
->flags
& I40E_FLAG_MSIX_ENABLED
) {
6225 err
= i40e_init_msix(pf
);
6227 pf
->flags
&= ~(I40E_FLAG_MSIX_ENABLED
|
6228 I40E_FLAG_RSS_ENABLED
|
6229 I40E_FLAG_DCB_ENABLED
|
6230 I40E_FLAG_SRIOV_ENABLED
|
6231 I40E_FLAG_FD_SB_ENABLED
|
6232 I40E_FLAG_FD_ATR_ENABLED
|
6233 I40E_FLAG_VMDQ_ENABLED
);
6235 /* rework the queue expectations without MSIX */
6236 i40e_determine_queue_usage(pf
);
6240 if (!(pf
->flags
& I40E_FLAG_MSIX_ENABLED
) &&
6241 (pf
->flags
& I40E_FLAG_MSI_ENABLED
)) {
6242 dev_info(&pf
->pdev
->dev
, "MSI-X not available, trying MSI\n");
6243 err
= pci_enable_msi(pf
->pdev
);
6245 dev_info(&pf
->pdev
->dev
, "MSI init failed - %d\n", err
);
6246 pf
->flags
&= ~I40E_FLAG_MSI_ENABLED
;
6250 if (!(pf
->flags
& (I40E_FLAG_MSIX_ENABLED
| I40E_FLAG_MSI_ENABLED
)))
6251 dev_info(&pf
->pdev
->dev
, "MSI-X and MSI not available, falling back to Legacy IRQ\n");
6253 /* track first vector for misc interrupts */
6254 err
= i40e_get_lump(pf
, pf
->irq_pile
, 1, I40E_PILE_VALID_BIT
-1);
6258 * i40e_setup_misc_vector - Setup the misc vector to handle non queue events
6259 * @pf: board private structure
6261 * This sets up the handler for MSIX 0, which is used to manage the
6262 * non-queue interrupts, e.g. AdminQ and errors. This is not used
6263 * when in MSI or Legacy interrupt mode.
6265 static int i40e_setup_misc_vector(struct i40e_pf
*pf
)
6267 struct i40e_hw
*hw
= &pf
->hw
;
6270 /* Only request the irq if this is the first time through, and
6271 * not when we're rebuilding after a Reset
6273 if (!test_bit(__I40E_RESET_RECOVERY_PENDING
, &pf
->state
)) {
6274 err
= request_irq(pf
->msix_entries
[0].vector
,
6275 i40e_intr
, 0, pf
->misc_int_name
, pf
);
6277 dev_info(&pf
->pdev
->dev
,
6278 "request_irq for %s failed: %d\n",
6279 pf
->misc_int_name
, err
);
6284 i40e_enable_misc_int_causes(hw
);
6286 /* associate no queues to the misc vector */
6287 wr32(hw
, I40E_PFINT_LNKLST0
, I40E_QUEUE_END_OF_LIST
);
6288 wr32(hw
, I40E_PFINT_ITR0(I40E_RX_ITR
), I40E_ITR_8K
);
6292 i40e_irq_dynamic_enable_icr0(pf
);
6298 * i40e_config_rss - Prepare for RSS if used
6299 * @pf: board private structure
6301 static int i40e_config_rss(struct i40e_pf
*pf
)
6303 /* Set of random keys generated using kernel random number generator */
6304 static const u32 seed
[I40E_PFQF_HKEY_MAX_INDEX
+ 1] = {0x41b01687,
6305 0x183cfd8c, 0xce880440, 0x580cbc3c, 0x35897377,
6306 0x328b25e1, 0x4fa98922, 0xb7d90c14, 0xd5bad70d,
6307 0xcd15a2c1, 0xe8580225, 0x4a1e9d11, 0xfe5731be};
6308 struct i40e_hw
*hw
= &pf
->hw
;
6313 /* Fill out hash function seed */
6314 for (i
= 0; i
<= I40E_PFQF_HKEY_MAX_INDEX
; i
++)
6315 wr32(hw
, I40E_PFQF_HKEY(i
), seed
[i
]);
6317 /* By default we enable TCP/UDP with IPv4/IPv6 ptypes */
6318 hena
= (u64
)rd32(hw
, I40E_PFQF_HENA(0)) |
6319 ((u64
)rd32(hw
, I40E_PFQF_HENA(1)) << 32);
6320 hena
|= I40E_DEFAULT_RSS_HENA
;
6321 wr32(hw
, I40E_PFQF_HENA(0), (u32
)hena
);
6322 wr32(hw
, I40E_PFQF_HENA(1), (u32
)(hena
>> 32));
6324 /* Populate the LUT with max no. of queues in round robin fashion */
6325 for (i
= 0, j
= 0; i
< pf
->hw
.func_caps
.rss_table_size
; i
++, j
++) {
6327 /* The assumption is that lan qp count will be the highest
6328 * qp count for any PF VSI that needs RSS.
6329 * If multiple VSIs need RSS support, all the qp counts
6330 * for those VSIs should be a power of 2 for RSS to work.
6331 * If LAN VSI is the only consumer for RSS then this requirement
6334 if (j
== pf
->rss_size
)
6336 /* lut = 4-byte sliding window of 4 lut entries */
6337 lut
= (lut
<< 8) | (j
&
6338 ((0x1 << pf
->hw
.func_caps
.rss_table_entry_width
) - 1));
6339 /* On i = 3, we have 4 entries in lut; write to the register */
6341 wr32(hw
, I40E_PFQF_HLUT(i
>> 2), lut
);
6349 * i40e_reconfig_rss_queues - change number of queues for rss and rebuild
6350 * @pf: board private structure
6351 * @queue_count: the requested queue count for rss.
6353 * returns 0 if rss is not enabled, if enabled returns the final rss queue
6354 * count which may be different from the requested queue count.
6356 int i40e_reconfig_rss_queues(struct i40e_pf
*pf
, int queue_count
)
6358 if (!(pf
->flags
& I40E_FLAG_RSS_ENABLED
))
6361 queue_count
= min_t(int, queue_count
, pf
->rss_size_max
);
6362 queue_count
= rounddown_pow_of_two(queue_count
);
6364 if (queue_count
!= pf
->rss_size
) {
6365 i40e_prep_for_reset(pf
);
6367 pf
->rss_size
= queue_count
;
6369 i40e_reset_and_rebuild(pf
, true);
6370 i40e_config_rss(pf
);
6372 dev_info(&pf
->pdev
->dev
, "RSS count: %d\n", pf
->rss_size
);
6373 return pf
->rss_size
;
6377 * i40e_sw_init - Initialize general software structures (struct i40e_pf)
6378 * @pf: board private structure to initialize
6380 * i40e_sw_init initializes the Adapter private data structure.
6381 * Fields are initialized based on PCI device information and
6382 * OS network device settings (MTU size).
6384 static int i40e_sw_init(struct i40e_pf
*pf
)
6389 pf
->msg_enable
= netif_msg_init(I40E_DEFAULT_MSG_ENABLE
,
6390 (NETIF_MSG_DRV
|NETIF_MSG_PROBE
|NETIF_MSG_LINK
));
6391 pf
->hw
.debug_mask
= pf
->msg_enable
| I40E_DEBUG_DIAG
;
6392 if (debug
!= -1 && debug
!= I40E_DEFAULT_MSG_ENABLE
) {
6393 if (I40E_DEBUG_USER
& debug
)
6394 pf
->hw
.debug_mask
= debug
;
6395 pf
->msg_enable
= netif_msg_init((debug
& ~I40E_DEBUG_USER
),
6396 I40E_DEFAULT_MSG_ENABLE
);
6399 /* Set default capability flags */
6400 pf
->flags
= I40E_FLAG_RX_CSUM_ENABLED
|
6401 I40E_FLAG_MSI_ENABLED
|
6402 I40E_FLAG_MSIX_ENABLED
|
6403 I40E_FLAG_RX_1BUF_ENABLED
;
6405 /* Depending on PF configurations, it is possible that the RSS
6406 * maximum might end up larger than the available queues
6408 pf
->rss_size_max
= 0x1 << pf
->hw
.func_caps
.rss_table_entry_width
;
6409 pf
->rss_size_max
= min_t(int, pf
->rss_size_max
,
6410 pf
->hw
.func_caps
.num_tx_qp
);
6411 if (pf
->hw
.func_caps
.rss
) {
6412 pf
->flags
|= I40E_FLAG_RSS_ENABLED
;
6413 pf
->rss_size
= min_t(int, pf
->rss_size_max
, num_online_cpus());
6414 pf
->rss_size
= rounddown_pow_of_two(pf
->rss_size
);
6419 /* MFP mode enabled */
6420 if (pf
->hw
.func_caps
.npar_enable
|| pf
->hw
.func_caps
.mfp_mode_1
) {
6421 pf
->flags
|= I40E_FLAG_MFP_ENABLED
;
6422 dev_info(&pf
->pdev
->dev
, "MFP mode Enabled\n");
6425 /* FW/NVM is not yet fixed in this regard */
6426 if ((pf
->hw
.func_caps
.fd_filters_guaranteed
> 0) ||
6427 (pf
->hw
.func_caps
.fd_filters_best_effort
> 0)) {
6428 pf
->flags
|= I40E_FLAG_FD_ATR_ENABLED
;
6429 pf
->atr_sample_rate
= I40E_DEFAULT_ATR_SAMPLE_RATE
;
6430 if (!(pf
->flags
& I40E_FLAG_MFP_ENABLED
)) {
6431 pf
->flags
|= I40E_FLAG_FD_SB_ENABLED
;
6433 dev_info(&pf
->pdev
->dev
,
6434 "Flow Director Sideband mode Disabled in MFP mode\n");
6436 pf
->fdir_pf_filter_count
=
6437 pf
->hw
.func_caps
.fd_filters_guaranteed
;
6438 pf
->hw
.fdir_shared_filter_count
=
6439 pf
->hw
.func_caps
.fd_filters_best_effort
;
6442 if (pf
->hw
.func_caps
.vmdq
) {
6443 pf
->flags
|= I40E_FLAG_VMDQ_ENABLED
;
6444 pf
->num_vmdq_vsis
= I40E_DEFAULT_NUM_VMDQ_VSI
;
6445 pf
->num_vmdq_qps
= I40E_DEFAULT_QUEUES_PER_VMDQ
;
6448 #ifdef CONFIG_PCI_IOV
6449 if (pf
->hw
.func_caps
.num_vfs
) {
6450 pf
->num_vf_qps
= I40E_DEFAULT_QUEUES_PER_VF
;
6451 pf
->flags
|= I40E_FLAG_SRIOV_ENABLED
;
6452 pf
->num_req_vfs
= min_t(int,
6453 pf
->hw
.func_caps
.num_vfs
,
6456 #endif /* CONFIG_PCI_IOV */
6457 pf
->eeprom_version
= 0xDEAD;
6458 pf
->lan_veb
= I40E_NO_VEB
;
6459 pf
->lan_vsi
= I40E_NO_VSI
;
6461 /* set up queue assignment tracking */
6462 size
= sizeof(struct i40e_lump_tracking
)
6463 + (sizeof(u16
) * pf
->hw
.func_caps
.num_tx_qp
);
6464 pf
->qp_pile
= kzalloc(size
, GFP_KERNEL
);
6469 pf
->qp_pile
->num_entries
= pf
->hw
.func_caps
.num_tx_qp
;
6470 pf
->qp_pile
->search_hint
= 0;
6472 /* set up vector assignment tracking */
6473 size
= sizeof(struct i40e_lump_tracking
)
6474 + (sizeof(u16
) * pf
->hw
.func_caps
.num_msix_vectors
);
6475 pf
->irq_pile
= kzalloc(size
, GFP_KERNEL
);
6476 if (!pf
->irq_pile
) {
6481 pf
->irq_pile
->num_entries
= pf
->hw
.func_caps
.num_msix_vectors
;
6482 pf
->irq_pile
->search_hint
= 0;
6484 mutex_init(&pf
->switch_mutex
);
6491 * i40e_set_ntuple - set the ntuple feature flag and take action
6492 * @pf: board private structure to initialize
6493 * @features: the feature set that the stack is suggesting
6495 * returns a bool to indicate if reset needs to happen
6497 bool i40e_set_ntuple(struct i40e_pf
*pf
, netdev_features_t features
)
6499 bool need_reset
= false;
6501 /* Check if Flow Director n-tuple support was enabled or disabled. If
6502 * the state changed, we need to reset.
6504 if (features
& NETIF_F_NTUPLE
) {
6505 /* Enable filters and mark for reset */
6506 if (!(pf
->flags
& I40E_FLAG_FD_SB_ENABLED
))
6508 pf
->flags
|= I40E_FLAG_FD_SB_ENABLED
;
6510 /* turn off filters, mark for reset and clear SW filter list */
6511 if (pf
->flags
& I40E_FLAG_FD_SB_ENABLED
) {
6513 i40e_fdir_filter_exit(pf
);
6515 pf
->flags
&= ~I40E_FLAG_FD_SB_ENABLED
;
6516 /* if ATR was disabled it can be re-enabled. */
6517 if (!(pf
->flags
& I40E_FLAG_FD_ATR_ENABLED
))
6518 pf
->flags
|= I40E_FLAG_FD_ATR_ENABLED
;
6524 * i40e_set_features - set the netdev feature flags
6525 * @netdev: ptr to the netdev being adjusted
6526 * @features: the feature set that the stack is suggesting
6528 static int i40e_set_features(struct net_device
*netdev
,
6529 netdev_features_t features
)
6531 struct i40e_netdev_priv
*np
= netdev_priv(netdev
);
6532 struct i40e_vsi
*vsi
= np
->vsi
;
6533 struct i40e_pf
*pf
= vsi
->back
;
6536 if (features
& NETIF_F_HW_VLAN_CTAG_RX
)
6537 i40e_vlan_stripping_enable(vsi
);
6539 i40e_vlan_stripping_disable(vsi
);
6541 need_reset
= i40e_set_ntuple(pf
, features
);
6544 i40e_do_reset(pf
, (1 << __I40E_PF_RESET_REQUESTED
));
6549 #ifdef CONFIG_I40E_VXLAN
6551 * i40e_get_vxlan_port_idx - Lookup a possibly offloaded for Rx UDP port
6552 * @pf: board private structure
6553 * @port: The UDP port to look up
6555 * Returns the index number or I40E_MAX_PF_UDP_OFFLOAD_PORTS if port not found
6557 static u8
i40e_get_vxlan_port_idx(struct i40e_pf
*pf
, __be16 port
)
6561 for (i
= 0; i
< I40E_MAX_PF_UDP_OFFLOAD_PORTS
; i
++) {
6562 if (pf
->vxlan_ports
[i
] == port
)
6570 * i40e_add_vxlan_port - Get notifications about VXLAN ports that come up
6571 * @netdev: This physical port's netdev
6572 * @sa_family: Socket Family that VXLAN is notifying us about
6573 * @port: New UDP port number that VXLAN started listening to
6575 static void i40e_add_vxlan_port(struct net_device
*netdev
,
6576 sa_family_t sa_family
, __be16 port
)
6578 struct i40e_netdev_priv
*np
= netdev_priv(netdev
);
6579 struct i40e_vsi
*vsi
= np
->vsi
;
6580 struct i40e_pf
*pf
= vsi
->back
;
6584 if (sa_family
== AF_INET6
)
6587 idx
= i40e_get_vxlan_port_idx(pf
, port
);
6589 /* Check if port already exists */
6590 if (idx
< I40E_MAX_PF_UDP_OFFLOAD_PORTS
) {
6591 netdev_info(netdev
, "Port %d already offloaded\n", ntohs(port
));
6595 /* Now check if there is space to add the new port */
6596 next_idx
= i40e_get_vxlan_port_idx(pf
, 0);
6598 if (next_idx
== I40E_MAX_PF_UDP_OFFLOAD_PORTS
) {
6599 netdev_info(netdev
, "Maximum number of UDP ports reached, not adding port %d\n",
6604 /* New port: add it and mark its index in the bitmap */
6605 pf
->vxlan_ports
[next_idx
] = port
;
6606 pf
->pending_vxlan_bitmap
|= (1 << next_idx
);
6608 pf
->flags
|= I40E_FLAG_VXLAN_FILTER_SYNC
;
6612 * i40e_del_vxlan_port - Get notifications about VXLAN ports that go away
6613 * @netdev: This physical port's netdev
6614 * @sa_family: Socket Family that VXLAN is notifying us about
6615 * @port: UDP port number that VXLAN stopped listening to
6617 static void i40e_del_vxlan_port(struct net_device
*netdev
,
6618 sa_family_t sa_family
, __be16 port
)
6620 struct i40e_netdev_priv
*np
= netdev_priv(netdev
);
6621 struct i40e_vsi
*vsi
= np
->vsi
;
6622 struct i40e_pf
*pf
= vsi
->back
;
6625 if (sa_family
== AF_INET6
)
6628 idx
= i40e_get_vxlan_port_idx(pf
, port
);
6630 /* Check if port already exists */
6631 if (idx
< I40E_MAX_PF_UDP_OFFLOAD_PORTS
) {
6632 /* if port exists, set it to 0 (mark for deletion)
6633 * and make it pending
6635 pf
->vxlan_ports
[idx
] = 0;
6637 pf
->pending_vxlan_bitmap
|= (1 << idx
);
6639 pf
->flags
|= I40E_FLAG_VXLAN_FILTER_SYNC
;
6641 netdev_warn(netdev
, "Port %d was not found, not deleting\n",
6647 static const struct net_device_ops i40e_netdev_ops
= {
6648 .ndo_open
= i40e_open
,
6649 .ndo_stop
= i40e_close
,
6650 .ndo_start_xmit
= i40e_lan_xmit_frame
,
6651 .ndo_get_stats64
= i40e_get_netdev_stats_struct
,
6652 .ndo_set_rx_mode
= i40e_set_rx_mode
,
6653 .ndo_validate_addr
= eth_validate_addr
,
6654 .ndo_set_mac_address
= i40e_set_mac
,
6655 .ndo_change_mtu
= i40e_change_mtu
,
6656 .ndo_do_ioctl
= i40e_ioctl
,
6657 .ndo_tx_timeout
= i40e_tx_timeout
,
6658 .ndo_vlan_rx_add_vid
= i40e_vlan_rx_add_vid
,
6659 .ndo_vlan_rx_kill_vid
= i40e_vlan_rx_kill_vid
,
6660 #ifdef CONFIG_NET_POLL_CONTROLLER
6661 .ndo_poll_controller
= i40e_netpoll
,
6663 .ndo_setup_tc
= i40e_setup_tc
,
6664 .ndo_set_features
= i40e_set_features
,
6665 .ndo_set_vf_mac
= i40e_ndo_set_vf_mac
,
6666 .ndo_set_vf_vlan
= i40e_ndo_set_vf_port_vlan
,
6667 .ndo_set_vf_tx_rate
= i40e_ndo_set_vf_bw
,
6668 .ndo_get_vf_config
= i40e_ndo_get_vf_config
,
6669 .ndo_set_vf_link_state
= i40e_ndo_set_vf_link_state
,
6670 #ifdef CONFIG_I40E_VXLAN
6671 .ndo_add_vxlan_port
= i40e_add_vxlan_port
,
6672 .ndo_del_vxlan_port
= i40e_del_vxlan_port
,
6677 * i40e_config_netdev - Setup the netdev flags
6678 * @vsi: the VSI being configured
6680 * Returns 0 on success, negative value on failure
6682 static int i40e_config_netdev(struct i40e_vsi
*vsi
)
6684 u8 brdcast
[ETH_ALEN
] = {0xff, 0xff, 0xff, 0xff, 0xff, 0xff};
6685 struct i40e_pf
*pf
= vsi
->back
;
6686 struct i40e_hw
*hw
= &pf
->hw
;
6687 struct i40e_netdev_priv
*np
;
6688 struct net_device
*netdev
;
6689 u8 mac_addr
[ETH_ALEN
];
6692 etherdev_size
= sizeof(struct i40e_netdev_priv
);
6693 netdev
= alloc_etherdev_mq(etherdev_size
, vsi
->alloc_queue_pairs
);
6697 vsi
->netdev
= netdev
;
6698 np
= netdev_priv(netdev
);
6701 netdev
->hw_enc_features
|= NETIF_F_IP_CSUM
|
6702 NETIF_F_GSO_UDP_TUNNEL
|
6705 netdev
->features
= NETIF_F_SG
|
6709 NETIF_F_GSO_UDP_TUNNEL
|
6710 NETIF_F_HW_VLAN_CTAG_TX
|
6711 NETIF_F_HW_VLAN_CTAG_RX
|
6712 NETIF_F_HW_VLAN_CTAG_FILTER
|
6721 /* copy netdev features into list of user selectable features */
6722 netdev
->hw_features
|= netdev
->features
;
6724 if (vsi
->type
== I40E_VSI_MAIN
) {
6725 SET_NETDEV_DEV(netdev
, &pf
->pdev
->dev
);
6726 memcpy(mac_addr
, hw
->mac
.perm_addr
, ETH_ALEN
);
6728 /* relate the VSI_VMDQ name to the VSI_MAIN name */
6729 snprintf(netdev
->name
, IFNAMSIZ
, "%sv%%d",
6730 pf
->vsi
[pf
->lan_vsi
]->netdev
->name
);
6731 random_ether_addr(mac_addr
);
6732 i40e_add_filter(vsi
, mac_addr
, I40E_VLAN_ANY
, false, false);
6734 i40e_add_filter(vsi
, brdcast
, I40E_VLAN_ANY
, false, false);
6736 memcpy(netdev
->dev_addr
, mac_addr
, ETH_ALEN
);
6737 memcpy(netdev
->perm_addr
, mac_addr
, ETH_ALEN
);
6738 /* vlan gets same features (except vlan offload)
6739 * after any tweaks for specific VSI types
6741 netdev
->vlan_features
= netdev
->features
& ~(NETIF_F_HW_VLAN_CTAG_TX
|
6742 NETIF_F_HW_VLAN_CTAG_RX
|
6743 NETIF_F_HW_VLAN_CTAG_FILTER
);
6744 netdev
->priv_flags
|= IFF_UNICAST_FLT
;
6745 netdev
->priv_flags
|= IFF_SUPP_NOFCS
;
6746 /* Setup netdev TC information */
6747 i40e_vsi_config_netdev_tc(vsi
, vsi
->tc_config
.enabled_tc
);
6749 netdev
->netdev_ops
= &i40e_netdev_ops
;
6750 netdev
->watchdog_timeo
= 5 * HZ
;
6751 i40e_set_ethtool_ops(netdev
);
6757 * i40e_vsi_delete - Delete a VSI from the switch
6758 * @vsi: the VSI being removed
6760 * Returns 0 on success, negative value on failure
6762 static void i40e_vsi_delete(struct i40e_vsi
*vsi
)
6764 /* remove default VSI is not allowed */
6765 if (vsi
== vsi
->back
->vsi
[vsi
->back
->lan_vsi
])
6768 i40e_aq_delete_element(&vsi
->back
->hw
, vsi
->seid
, NULL
);
6773 * i40e_add_vsi - Add a VSI to the switch
6774 * @vsi: the VSI being configured
6776 * This initializes a VSI context depending on the VSI type to be added and
6777 * passes it down to the add_vsi aq command.
6779 static int i40e_add_vsi(struct i40e_vsi
*vsi
)
6782 struct i40e_mac_filter
*f
, *ftmp
;
6783 struct i40e_pf
*pf
= vsi
->back
;
6784 struct i40e_hw
*hw
= &pf
->hw
;
6785 struct i40e_vsi_context ctxt
;
6786 u8 enabled_tc
= 0x1; /* TC0 enabled */
6789 memset(&ctxt
, 0, sizeof(ctxt
));
6790 switch (vsi
->type
) {
6792 /* The PF's main VSI is already setup as part of the
6793 * device initialization, so we'll not bother with
6794 * the add_vsi call, but we will retrieve the current
6797 ctxt
.seid
= pf
->main_vsi_seid
;
6798 ctxt
.pf_num
= pf
->hw
.pf_id
;
6800 ret
= i40e_aq_get_vsi_params(&pf
->hw
, &ctxt
, NULL
);
6801 ctxt
.flags
= I40E_AQ_VSI_TYPE_PF
;
6803 dev_info(&pf
->pdev
->dev
,
6804 "couldn't get pf vsi config, err %d, aq_err %d\n",
6805 ret
, pf
->hw
.aq
.asq_last_status
);
6808 memcpy(&vsi
->info
, &ctxt
.info
, sizeof(ctxt
.info
));
6809 vsi
->info
.valid_sections
= 0;
6811 vsi
->seid
= ctxt
.seid
;
6812 vsi
->id
= ctxt
.vsi_number
;
6814 enabled_tc
= i40e_pf_get_tc_map(pf
);
6816 /* MFP mode setup queue map and update VSI */
6817 if (pf
->flags
& I40E_FLAG_MFP_ENABLED
) {
6818 memset(&ctxt
, 0, sizeof(ctxt
));
6819 ctxt
.seid
= pf
->main_vsi_seid
;
6820 ctxt
.pf_num
= pf
->hw
.pf_id
;
6822 i40e_vsi_setup_queue_map(vsi
, &ctxt
, enabled_tc
, false);
6823 ret
= i40e_aq_update_vsi_params(hw
, &ctxt
, NULL
);
6825 dev_info(&pf
->pdev
->dev
,
6826 "update vsi failed, aq_err=%d\n",
6827 pf
->hw
.aq
.asq_last_status
);
6831 /* update the local VSI info queue map */
6832 i40e_vsi_update_queue_map(vsi
, &ctxt
);
6833 vsi
->info
.valid_sections
= 0;
6835 /* Default/Main VSI is only enabled for TC0
6836 * reconfigure it to enable all TCs that are
6837 * available on the port in SFP mode.
6839 ret
= i40e_vsi_config_tc(vsi
, enabled_tc
);
6841 dev_info(&pf
->pdev
->dev
,
6842 "failed to configure TCs for main VSI tc_map 0x%08x, err %d, aq_err %d\n",
6844 pf
->hw
.aq
.asq_last_status
);
6851 ctxt
.pf_num
= hw
->pf_id
;
6853 ctxt
.uplink_seid
= vsi
->uplink_seid
;
6854 ctxt
.connection_type
= 0x1; /* regular data port */
6855 ctxt
.flags
= I40E_AQ_VSI_TYPE_PF
;
6856 i40e_vsi_setup_queue_map(vsi
, &ctxt
, enabled_tc
, true);
6859 case I40E_VSI_VMDQ2
:
6860 ctxt
.pf_num
= hw
->pf_id
;
6862 ctxt
.uplink_seid
= vsi
->uplink_seid
;
6863 ctxt
.connection_type
= 0x1; /* regular data port */
6864 ctxt
.flags
= I40E_AQ_VSI_TYPE_VMDQ2
;
6866 ctxt
.info
.valid_sections
|= cpu_to_le16(I40E_AQ_VSI_PROP_SWITCH_VALID
);
6868 /* This VSI is connected to VEB so the switch_id
6869 * should be set to zero by default.
6871 ctxt
.info
.switch_id
= 0;
6872 ctxt
.info
.switch_id
|= cpu_to_le16(I40E_AQ_VSI_SW_ID_FLAG_LOCAL_LB
);
6873 ctxt
.info
.switch_id
|= cpu_to_le16(I40E_AQ_VSI_SW_ID_FLAG_ALLOW_LB
);
6875 /* Setup the VSI tx/rx queue map for TC0 only for now */
6876 i40e_vsi_setup_queue_map(vsi
, &ctxt
, enabled_tc
, true);
6879 case I40E_VSI_SRIOV
:
6880 ctxt
.pf_num
= hw
->pf_id
;
6881 ctxt
.vf_num
= vsi
->vf_id
+ hw
->func_caps
.vf_base_id
;
6882 ctxt
.uplink_seid
= vsi
->uplink_seid
;
6883 ctxt
.connection_type
= 0x1; /* regular data port */
6884 ctxt
.flags
= I40E_AQ_VSI_TYPE_VF
;
6886 ctxt
.info
.valid_sections
|= cpu_to_le16(I40E_AQ_VSI_PROP_SWITCH_VALID
);
6888 /* This VSI is connected to VEB so the switch_id
6889 * should be set to zero by default.
6891 ctxt
.info
.switch_id
= cpu_to_le16(I40E_AQ_VSI_SW_ID_FLAG_ALLOW_LB
);
6893 ctxt
.info
.valid_sections
|= cpu_to_le16(I40E_AQ_VSI_PROP_VLAN_VALID
);
6894 ctxt
.info
.port_vlan_flags
|= I40E_AQ_VSI_PVLAN_MODE_ALL
;
6895 /* Setup the VSI tx/rx queue map for TC0 only for now */
6896 i40e_vsi_setup_queue_map(vsi
, &ctxt
, enabled_tc
, true);
6903 if (vsi
->type
!= I40E_VSI_MAIN
) {
6904 ret
= i40e_aq_add_vsi(hw
, &ctxt
, NULL
);
6906 dev_info(&vsi
->back
->pdev
->dev
,
6907 "add vsi failed, aq_err=%d\n",
6908 vsi
->back
->hw
.aq
.asq_last_status
);
6912 memcpy(&vsi
->info
, &ctxt
.info
, sizeof(ctxt
.info
));
6913 vsi
->info
.valid_sections
= 0;
6914 vsi
->seid
= ctxt
.seid
;
6915 vsi
->id
= ctxt
.vsi_number
;
6918 /* If macvlan filters already exist, force them to get loaded */
6919 list_for_each_entry_safe(f
, ftmp
, &vsi
->mac_filter_list
, list
) {
6924 vsi
->flags
|= I40E_VSI_FLAG_FILTER_CHANGED
;
6925 pf
->flags
|= I40E_FLAG_FILTER_SYNC
;
6928 /* Update VSI BW information */
6929 ret
= i40e_vsi_get_bw_info(vsi
);
6931 dev_info(&pf
->pdev
->dev
,
6932 "couldn't get vsi bw info, err %d, aq_err %d\n",
6933 ret
, pf
->hw
.aq
.asq_last_status
);
6934 /* VSI is already added so not tearing that up */
6943 * i40e_vsi_release - Delete a VSI and free its resources
6944 * @vsi: the VSI being removed
6946 * Returns 0 on success or < 0 on error
6948 int i40e_vsi_release(struct i40e_vsi
*vsi
)
6950 struct i40e_mac_filter
*f
, *ftmp
;
6951 struct i40e_veb
*veb
= NULL
;
6958 /* release of a VEB-owner or last VSI is not allowed */
6959 if (vsi
->flags
& I40E_VSI_FLAG_VEB_OWNER
) {
6960 dev_info(&pf
->pdev
->dev
, "VSI %d has existing VEB %d\n",
6961 vsi
->seid
, vsi
->uplink_seid
);
6964 if (vsi
== pf
->vsi
[pf
->lan_vsi
] &&
6965 !test_bit(__I40E_DOWN
, &pf
->state
)) {
6966 dev_info(&pf
->pdev
->dev
, "Can't remove PF VSI\n");
6970 uplink_seid
= vsi
->uplink_seid
;
6971 if (vsi
->type
!= I40E_VSI_SRIOV
) {
6972 if (vsi
->netdev_registered
) {
6973 vsi
->netdev_registered
= false;
6975 /* results in a call to i40e_close() */
6976 unregister_netdev(vsi
->netdev
);
6979 if (!test_and_set_bit(__I40E_DOWN
, &vsi
->state
))
6981 i40e_vsi_free_irq(vsi
);
6982 i40e_vsi_free_tx_resources(vsi
);
6983 i40e_vsi_free_rx_resources(vsi
);
6985 i40e_vsi_disable_irq(vsi
);
6988 list_for_each_entry_safe(f
, ftmp
, &vsi
->mac_filter_list
, list
)
6989 i40e_del_filter(vsi
, f
->macaddr
, f
->vlan
,
6990 f
->is_vf
, f
->is_netdev
);
6991 i40e_sync_vsi_filters(vsi
);
6993 i40e_vsi_delete(vsi
);
6994 i40e_vsi_free_q_vectors(vsi
);
6996 free_netdev(vsi
->netdev
);
6999 i40e_vsi_clear_rings(vsi
);
7000 i40e_vsi_clear(vsi
);
7002 /* If this was the last thing on the VEB, except for the
7003 * controlling VSI, remove the VEB, which puts the controlling
7004 * VSI onto the next level down in the switch.
7006 * Well, okay, there's one more exception here: don't remove
7007 * the orphan VEBs yet. We'll wait for an explicit remove request
7008 * from up the network stack.
7010 for (n
= 0, i
= 0; i
< pf
->hw
.func_caps
.num_vsis
; i
++) {
7012 pf
->vsi
[i
]->uplink_seid
== uplink_seid
&&
7013 (pf
->vsi
[i
]->flags
& I40E_VSI_FLAG_VEB_OWNER
) == 0) {
7014 n
++; /* count the VSIs */
7017 for (i
= 0; i
< I40E_MAX_VEB
; i
++) {
7020 if (pf
->veb
[i
]->uplink_seid
== uplink_seid
)
7021 n
++; /* count the VEBs */
7022 if (pf
->veb
[i
]->seid
== uplink_seid
)
7025 if (n
== 0 && veb
&& veb
->uplink_seid
!= 0)
7026 i40e_veb_release(veb
);
7032 * i40e_vsi_setup_vectors - Set up the q_vectors for the given VSI
7033 * @vsi: ptr to the VSI
7035 * This should only be called after i40e_vsi_mem_alloc() which allocates the
7036 * corresponding SW VSI structure and initializes num_queue_pairs for the
7037 * newly allocated VSI.
7039 * Returns 0 on success or negative on failure
7041 static int i40e_vsi_setup_vectors(struct i40e_vsi
*vsi
)
7044 struct i40e_pf
*pf
= vsi
->back
;
7046 if (vsi
->q_vectors
[0]) {
7047 dev_info(&pf
->pdev
->dev
, "VSI %d has existing q_vectors\n",
7052 if (vsi
->base_vector
) {
7053 dev_info(&pf
->pdev
->dev
, "VSI %d has non-zero base vector %d\n",
7054 vsi
->seid
, vsi
->base_vector
);
7058 ret
= i40e_vsi_alloc_q_vectors(vsi
);
7060 dev_info(&pf
->pdev
->dev
,
7061 "failed to allocate %d q_vector for VSI %d, ret=%d\n",
7062 vsi
->num_q_vectors
, vsi
->seid
, ret
);
7063 vsi
->num_q_vectors
= 0;
7064 goto vector_setup_out
;
7067 if (vsi
->num_q_vectors
)
7068 vsi
->base_vector
= i40e_get_lump(pf
, pf
->irq_pile
,
7069 vsi
->num_q_vectors
, vsi
->idx
);
7070 if (vsi
->base_vector
< 0) {
7071 dev_info(&pf
->pdev
->dev
,
7072 "failed to get queue tracking for VSI %d, err=%d\n",
7073 vsi
->seid
, vsi
->base_vector
);
7074 i40e_vsi_free_q_vectors(vsi
);
7076 goto vector_setup_out
;
7084 * i40e_vsi_reinit_setup - return and reallocate resources for a VSI
7085 * @vsi: pointer to the vsi.
7087 * This re-allocates a vsi's queue resources.
7089 * Returns pointer to the successfully allocated and configured VSI sw struct
7090 * on success, otherwise returns NULL on failure.
7092 static struct i40e_vsi
*i40e_vsi_reinit_setup(struct i40e_vsi
*vsi
)
7094 struct i40e_pf
*pf
= vsi
->back
;
7098 i40e_put_lump(pf
->qp_pile
, vsi
->base_queue
, vsi
->idx
);
7099 i40e_vsi_clear_rings(vsi
);
7101 i40e_vsi_free_arrays(vsi
, false);
7102 i40e_set_num_rings_in_vsi(vsi
);
7103 ret
= i40e_vsi_alloc_arrays(vsi
, false);
7107 ret
= i40e_get_lump(pf
, pf
->qp_pile
, vsi
->alloc_queue_pairs
, vsi
->idx
);
7109 dev_info(&pf
->pdev
->dev
, "VSI %d get_lump failed %d\n",
7113 vsi
->base_queue
= ret
;
7115 /* Update the FW view of the VSI. Force a reset of TC and queue
7116 * layout configurations.
7118 enabled_tc
= pf
->vsi
[pf
->lan_vsi
]->tc_config
.enabled_tc
;
7119 pf
->vsi
[pf
->lan_vsi
]->tc_config
.enabled_tc
= 0;
7120 pf
->vsi
[pf
->lan_vsi
]->seid
= pf
->main_vsi_seid
;
7121 i40e_vsi_config_tc(pf
->vsi
[pf
->lan_vsi
], enabled_tc
);
7123 /* assign it some queues */
7124 ret
= i40e_alloc_rings(vsi
);
7128 /* map all of the rings to the q_vectors */
7129 i40e_vsi_map_rings_to_vectors(vsi
);
7133 i40e_vsi_free_q_vectors(vsi
);
7134 if (vsi
->netdev_registered
) {
7135 vsi
->netdev_registered
= false;
7136 unregister_netdev(vsi
->netdev
);
7137 free_netdev(vsi
->netdev
);
7140 i40e_aq_delete_element(&pf
->hw
, vsi
->seid
, NULL
);
7142 i40e_vsi_clear(vsi
);
7147 * i40e_vsi_setup - Set up a VSI by a given type
7148 * @pf: board private structure
7150 * @uplink_seid: the switch element to link to
7151 * @param1: usage depends upon VSI type. For VF types, indicates VF id
7153 * This allocates the sw VSI structure and its queue resources, then add a VSI
7154 * to the identified VEB.
7156 * Returns pointer to the successfully allocated and configure VSI sw struct on
7157 * success, otherwise returns NULL on failure.
7159 struct i40e_vsi
*i40e_vsi_setup(struct i40e_pf
*pf
, u8 type
,
7160 u16 uplink_seid
, u32 param1
)
7162 struct i40e_vsi
*vsi
= NULL
;
7163 struct i40e_veb
*veb
= NULL
;
7167 /* The requested uplink_seid must be either
7168 * - the PF's port seid
7169 * no VEB is needed because this is the PF
7170 * or this is a Flow Director special case VSI
7171 * - seid of an existing VEB
7172 * - seid of a VSI that owns an existing VEB
7173 * - seid of a VSI that doesn't own a VEB
7174 * a new VEB is created and the VSI becomes the owner
7175 * - seid of the PF VSI, which is what creates the first VEB
7176 * this is a special case of the previous
7178 * Find which uplink_seid we were given and create a new VEB if needed
7180 for (i
= 0; i
< I40E_MAX_VEB
; i
++) {
7181 if (pf
->veb
[i
] && pf
->veb
[i
]->seid
== uplink_seid
) {
7187 if (!veb
&& uplink_seid
!= pf
->mac_seid
) {
7189 for (i
= 0; i
< pf
->hw
.func_caps
.num_vsis
; i
++) {
7190 if (pf
->vsi
[i
] && pf
->vsi
[i
]->seid
== uplink_seid
) {
7196 dev_info(&pf
->pdev
->dev
, "no such uplink_seid %d\n",
7201 if (vsi
->uplink_seid
== pf
->mac_seid
)
7202 veb
= i40e_veb_setup(pf
, 0, pf
->mac_seid
, vsi
->seid
,
7203 vsi
->tc_config
.enabled_tc
);
7204 else if ((vsi
->flags
& I40E_VSI_FLAG_VEB_OWNER
) == 0)
7205 veb
= i40e_veb_setup(pf
, 0, vsi
->uplink_seid
, vsi
->seid
,
7206 vsi
->tc_config
.enabled_tc
);
7208 for (i
= 0; i
< I40E_MAX_VEB
&& !veb
; i
++) {
7209 if (pf
->veb
[i
] && pf
->veb
[i
]->seid
== vsi
->uplink_seid
)
7213 dev_info(&pf
->pdev
->dev
, "couldn't add VEB\n");
7217 vsi
->flags
|= I40E_VSI_FLAG_VEB_OWNER
;
7218 uplink_seid
= veb
->seid
;
7221 /* get vsi sw struct */
7222 v_idx
= i40e_vsi_mem_alloc(pf
, type
);
7225 vsi
= pf
->vsi
[v_idx
];
7229 vsi
->veb_idx
= (veb
? veb
->idx
: I40E_NO_VEB
);
7231 if (type
== I40E_VSI_MAIN
)
7232 pf
->lan_vsi
= v_idx
;
7233 else if (type
== I40E_VSI_SRIOV
)
7234 vsi
->vf_id
= param1
;
7235 /* assign it some queues */
7236 ret
= i40e_get_lump(pf
, pf
->qp_pile
, vsi
->alloc_queue_pairs
,
7239 dev_info(&pf
->pdev
->dev
, "VSI %d get_lump failed %d\n",
7243 vsi
->base_queue
= ret
;
7245 /* get a VSI from the hardware */
7246 vsi
->uplink_seid
= uplink_seid
;
7247 ret
= i40e_add_vsi(vsi
);
7251 switch (vsi
->type
) {
7252 /* setup the netdev if needed */
7254 case I40E_VSI_VMDQ2
:
7255 ret
= i40e_config_netdev(vsi
);
7258 ret
= register_netdev(vsi
->netdev
);
7261 vsi
->netdev_registered
= true;
7262 netif_carrier_off(vsi
->netdev
);
7263 #ifdef CONFIG_I40E_DCB
7264 /* Setup DCB netlink interface */
7265 i40e_dcbnl_setup(vsi
);
7266 #endif /* CONFIG_I40E_DCB */
7270 /* set up vectors and rings if needed */
7271 ret
= i40e_vsi_setup_vectors(vsi
);
7275 ret
= i40e_alloc_rings(vsi
);
7279 /* map all of the rings to the q_vectors */
7280 i40e_vsi_map_rings_to_vectors(vsi
);
7282 i40e_vsi_reset_stats(vsi
);
7286 /* no netdev or rings for the other VSI types */
7293 i40e_vsi_free_q_vectors(vsi
);
7295 if (vsi
->netdev_registered
) {
7296 vsi
->netdev_registered
= false;
7297 unregister_netdev(vsi
->netdev
);
7298 free_netdev(vsi
->netdev
);
7302 i40e_aq_delete_element(&pf
->hw
, vsi
->seid
, NULL
);
7304 i40e_vsi_clear(vsi
);
7310 * i40e_veb_get_bw_info - Query VEB BW information
7311 * @veb: the veb to query
7313 * Query the Tx scheduler BW configuration data for given VEB
7315 static int i40e_veb_get_bw_info(struct i40e_veb
*veb
)
7317 struct i40e_aqc_query_switching_comp_ets_config_resp ets_data
;
7318 struct i40e_aqc_query_switching_comp_bw_config_resp bw_data
;
7319 struct i40e_pf
*pf
= veb
->pf
;
7320 struct i40e_hw
*hw
= &pf
->hw
;
7325 ret
= i40e_aq_query_switch_comp_bw_config(hw
, veb
->seid
,
7328 dev_info(&pf
->pdev
->dev
,
7329 "query veb bw config failed, aq_err=%d\n",
7330 hw
->aq
.asq_last_status
);
7334 ret
= i40e_aq_query_switch_comp_ets_config(hw
, veb
->seid
,
7337 dev_info(&pf
->pdev
->dev
,
7338 "query veb bw ets config failed, aq_err=%d\n",
7339 hw
->aq
.asq_last_status
);
7343 veb
->bw_limit
= le16_to_cpu(ets_data
.port_bw_limit
);
7344 veb
->bw_max_quanta
= ets_data
.tc_bw_max
;
7345 veb
->is_abs_credits
= bw_data
.absolute_credits_enable
;
7346 tc_bw_max
= le16_to_cpu(bw_data
.tc_bw_max
[0]) |
7347 (le16_to_cpu(bw_data
.tc_bw_max
[1]) << 16);
7348 for (i
= 0; i
< I40E_MAX_TRAFFIC_CLASS
; i
++) {
7349 veb
->bw_tc_share_credits
[i
] = bw_data
.tc_bw_share_credits
[i
];
7350 veb
->bw_tc_limit_credits
[i
] =
7351 le16_to_cpu(bw_data
.tc_bw_limits
[i
]);
7352 veb
->bw_tc_max_quanta
[i
] = ((tc_bw_max
>> (i
*4)) & 0x7);
7360 * i40e_veb_mem_alloc - Allocates the next available struct veb in the PF
7361 * @pf: board private structure
7363 * On error: returns error code (negative)
7364 * On success: returns vsi index in PF (positive)
7366 static int i40e_veb_mem_alloc(struct i40e_pf
*pf
)
7369 struct i40e_veb
*veb
;
7372 /* Need to protect the allocation of switch elements at the PF level */
7373 mutex_lock(&pf
->switch_mutex
);
7375 /* VEB list may be fragmented if VEB creation/destruction has
7376 * been happening. We can afford to do a quick scan to look
7377 * for any free slots in the list.
7379 * find next empty veb slot, looping back around if necessary
7382 while ((i
< I40E_MAX_VEB
) && (pf
->veb
[i
] != NULL
))
7384 if (i
>= I40E_MAX_VEB
) {
7386 goto err_alloc_veb
; /* out of VEB slots! */
7389 veb
= kzalloc(sizeof(*veb
), GFP_KERNEL
);
7396 veb
->enabled_tc
= 1;
7401 mutex_unlock(&pf
->switch_mutex
);
7406 * i40e_switch_branch_release - Delete a branch of the switch tree
7407 * @branch: where to start deleting
7409 * This uses recursion to find the tips of the branch to be
7410 * removed, deleting until we get back to and can delete this VEB.
7412 static void i40e_switch_branch_release(struct i40e_veb
*branch
)
7414 struct i40e_pf
*pf
= branch
->pf
;
7415 u16 branch_seid
= branch
->seid
;
7416 u16 veb_idx
= branch
->idx
;
7419 /* release any VEBs on this VEB - RECURSION */
7420 for (i
= 0; i
< I40E_MAX_VEB
; i
++) {
7423 if (pf
->veb
[i
]->uplink_seid
== branch
->seid
)
7424 i40e_switch_branch_release(pf
->veb
[i
]);
7427 /* Release the VSIs on this VEB, but not the owner VSI.
7429 * NOTE: Removing the last VSI on a VEB has the SIDE EFFECT of removing
7430 * the VEB itself, so don't use (*branch) after this loop.
7432 for (i
= 0; i
< pf
->hw
.func_caps
.num_vsis
; i
++) {
7435 if (pf
->vsi
[i
]->uplink_seid
== branch_seid
&&
7436 (pf
->vsi
[i
]->flags
& I40E_VSI_FLAG_VEB_OWNER
) == 0) {
7437 i40e_vsi_release(pf
->vsi
[i
]);
7441 /* There's one corner case where the VEB might not have been
7442 * removed, so double check it here and remove it if needed.
7443 * This case happens if the veb was created from the debugfs
7444 * commands and no VSIs were added to it.
7446 if (pf
->veb
[veb_idx
])
7447 i40e_veb_release(pf
->veb
[veb_idx
]);
7451 * i40e_veb_clear - remove veb struct
7452 * @veb: the veb to remove
7454 static void i40e_veb_clear(struct i40e_veb
*veb
)
7460 struct i40e_pf
*pf
= veb
->pf
;
7462 mutex_lock(&pf
->switch_mutex
);
7463 if (pf
->veb
[veb
->idx
] == veb
)
7464 pf
->veb
[veb
->idx
] = NULL
;
7465 mutex_unlock(&pf
->switch_mutex
);
7472 * i40e_veb_release - Delete a VEB and free its resources
7473 * @veb: the VEB being removed
7475 void i40e_veb_release(struct i40e_veb
*veb
)
7477 struct i40e_vsi
*vsi
= NULL
;
7483 /* find the remaining VSI and check for extras */
7484 for (i
= 0; i
< pf
->hw
.func_caps
.num_vsis
; i
++) {
7485 if (pf
->vsi
[i
] && pf
->vsi
[i
]->uplink_seid
== veb
->seid
) {
7491 dev_info(&pf
->pdev
->dev
,
7492 "can't remove VEB %d with %d VSIs left\n",
7497 /* move the remaining VSI to uplink veb */
7498 vsi
->flags
&= ~I40E_VSI_FLAG_VEB_OWNER
;
7499 if (veb
->uplink_seid
) {
7500 vsi
->uplink_seid
= veb
->uplink_seid
;
7501 if (veb
->uplink_seid
== pf
->mac_seid
)
7502 vsi
->veb_idx
= I40E_NO_VEB
;
7504 vsi
->veb_idx
= veb
->veb_idx
;
7507 vsi
->uplink_seid
= pf
->vsi
[pf
->lan_vsi
]->uplink_seid
;
7508 vsi
->veb_idx
= pf
->vsi
[pf
->lan_vsi
]->veb_idx
;
7511 i40e_aq_delete_element(&pf
->hw
, veb
->seid
, NULL
);
7512 i40e_veb_clear(veb
);
7518 * i40e_add_veb - create the VEB in the switch
7519 * @veb: the VEB to be instantiated
7520 * @vsi: the controlling VSI
7522 static int i40e_add_veb(struct i40e_veb
*veb
, struct i40e_vsi
*vsi
)
7524 bool is_default
= false;
7525 bool is_cloud
= false;
7528 /* get a VEB from the hardware */
7529 ret
= i40e_aq_add_veb(&veb
->pf
->hw
, veb
->uplink_seid
, vsi
->seid
,
7530 veb
->enabled_tc
, is_default
,
7531 is_cloud
, &veb
->seid
, NULL
);
7533 dev_info(&veb
->pf
->pdev
->dev
,
7534 "couldn't add VEB, err %d, aq_err %d\n",
7535 ret
, veb
->pf
->hw
.aq
.asq_last_status
);
7539 /* get statistics counter */
7540 ret
= i40e_aq_get_veb_parameters(&veb
->pf
->hw
, veb
->seid
, NULL
, NULL
,
7541 &veb
->stats_idx
, NULL
, NULL
, NULL
);
7543 dev_info(&veb
->pf
->pdev
->dev
,
7544 "couldn't get VEB statistics idx, err %d, aq_err %d\n",
7545 ret
, veb
->pf
->hw
.aq
.asq_last_status
);
7548 ret
= i40e_veb_get_bw_info(veb
);
7550 dev_info(&veb
->pf
->pdev
->dev
,
7551 "couldn't get VEB bw info, err %d, aq_err %d\n",
7552 ret
, veb
->pf
->hw
.aq
.asq_last_status
);
7553 i40e_aq_delete_element(&veb
->pf
->hw
, veb
->seid
, NULL
);
7557 vsi
->uplink_seid
= veb
->seid
;
7558 vsi
->veb_idx
= veb
->idx
;
7559 vsi
->flags
|= I40E_VSI_FLAG_VEB_OWNER
;
7565 * i40e_veb_setup - Set up a VEB
7566 * @pf: board private structure
7567 * @flags: VEB setup flags
7568 * @uplink_seid: the switch element to link to
7569 * @vsi_seid: the initial VSI seid
7570 * @enabled_tc: Enabled TC bit-map
7572 * This allocates the sw VEB structure and links it into the switch
7573 * It is possible and legal for this to be a duplicate of an already
7574 * existing VEB. It is also possible for both uplink and vsi seids
7575 * to be zero, in order to create a floating VEB.
7577 * Returns pointer to the successfully allocated VEB sw struct on
7578 * success, otherwise returns NULL on failure.
7580 struct i40e_veb
*i40e_veb_setup(struct i40e_pf
*pf
, u16 flags
,
7581 u16 uplink_seid
, u16 vsi_seid
,
7584 struct i40e_veb
*veb
, *uplink_veb
= NULL
;
7585 int vsi_idx
, veb_idx
;
7588 /* if one seid is 0, the other must be 0 to create a floating relay */
7589 if ((uplink_seid
== 0 || vsi_seid
== 0) &&
7590 (uplink_seid
+ vsi_seid
!= 0)) {
7591 dev_info(&pf
->pdev
->dev
,
7592 "one, not both seid's are 0: uplink=%d vsi=%d\n",
7593 uplink_seid
, vsi_seid
);
7597 /* make sure there is such a vsi and uplink */
7598 for (vsi_idx
= 0; vsi_idx
< pf
->hw
.func_caps
.num_vsis
; vsi_idx
++)
7599 if (pf
->vsi
[vsi_idx
] && pf
->vsi
[vsi_idx
]->seid
== vsi_seid
)
7601 if (vsi_idx
>= pf
->hw
.func_caps
.num_vsis
&& vsi_seid
!= 0) {
7602 dev_info(&pf
->pdev
->dev
, "vsi seid %d not found\n",
7607 if (uplink_seid
&& uplink_seid
!= pf
->mac_seid
) {
7608 for (veb_idx
= 0; veb_idx
< I40E_MAX_VEB
; veb_idx
++) {
7609 if (pf
->veb
[veb_idx
] &&
7610 pf
->veb
[veb_idx
]->seid
== uplink_seid
) {
7611 uplink_veb
= pf
->veb
[veb_idx
];
7616 dev_info(&pf
->pdev
->dev
,
7617 "uplink seid %d not found\n", uplink_seid
);
7622 /* get veb sw struct */
7623 veb_idx
= i40e_veb_mem_alloc(pf
);
7626 veb
= pf
->veb
[veb_idx
];
7628 veb
->uplink_seid
= uplink_seid
;
7629 veb
->veb_idx
= (uplink_veb
? uplink_veb
->idx
: I40E_NO_VEB
);
7630 veb
->enabled_tc
= (enabled_tc
? enabled_tc
: 0x1);
7632 /* create the VEB in the switch */
7633 ret
= i40e_add_veb(veb
, pf
->vsi
[vsi_idx
]);
7640 i40e_veb_clear(veb
);
7646 * i40e_setup_pf_switch_element - set pf vars based on switch type
7647 * @pf: board private structure
7648 * @ele: element we are building info from
7649 * @num_reported: total number of elements
7650 * @printconfig: should we print the contents
7652 * helper function to assist in extracting a few useful SEID values.
7654 static void i40e_setup_pf_switch_element(struct i40e_pf
*pf
,
7655 struct i40e_aqc_switch_config_element_resp
*ele
,
7656 u16 num_reported
, bool printconfig
)
7658 u16 downlink_seid
= le16_to_cpu(ele
->downlink_seid
);
7659 u16 uplink_seid
= le16_to_cpu(ele
->uplink_seid
);
7660 u8 element_type
= ele
->element_type
;
7661 u16 seid
= le16_to_cpu(ele
->seid
);
7664 dev_info(&pf
->pdev
->dev
,
7665 "type=%d seid=%d uplink=%d downlink=%d\n",
7666 element_type
, seid
, uplink_seid
, downlink_seid
);
7668 switch (element_type
) {
7669 case I40E_SWITCH_ELEMENT_TYPE_MAC
:
7670 pf
->mac_seid
= seid
;
7672 case I40E_SWITCH_ELEMENT_TYPE_VEB
:
7674 if (uplink_seid
!= pf
->mac_seid
)
7676 if (pf
->lan_veb
== I40E_NO_VEB
) {
7679 /* find existing or else empty VEB */
7680 for (v
= 0; v
< I40E_MAX_VEB
; v
++) {
7681 if (pf
->veb
[v
] && (pf
->veb
[v
]->seid
== seid
)) {
7686 if (pf
->lan_veb
== I40E_NO_VEB
) {
7687 v
= i40e_veb_mem_alloc(pf
);
7694 pf
->veb
[pf
->lan_veb
]->seid
= seid
;
7695 pf
->veb
[pf
->lan_veb
]->uplink_seid
= pf
->mac_seid
;
7696 pf
->veb
[pf
->lan_veb
]->pf
= pf
;
7697 pf
->veb
[pf
->lan_veb
]->veb_idx
= I40E_NO_VEB
;
7699 case I40E_SWITCH_ELEMENT_TYPE_VSI
:
7700 if (num_reported
!= 1)
7702 /* This is immediately after a reset so we can assume this is
7705 pf
->mac_seid
= uplink_seid
;
7706 pf
->pf_seid
= downlink_seid
;
7707 pf
->main_vsi_seid
= seid
;
7709 dev_info(&pf
->pdev
->dev
,
7710 "pf_seid=%d main_vsi_seid=%d\n",
7711 pf
->pf_seid
, pf
->main_vsi_seid
);
7713 case I40E_SWITCH_ELEMENT_TYPE_PF
:
7714 case I40E_SWITCH_ELEMENT_TYPE_VF
:
7715 case I40E_SWITCH_ELEMENT_TYPE_EMP
:
7716 case I40E_SWITCH_ELEMENT_TYPE_BMC
:
7717 case I40E_SWITCH_ELEMENT_TYPE_PE
:
7718 case I40E_SWITCH_ELEMENT_TYPE_PA
:
7719 /* ignore these for now */
7722 dev_info(&pf
->pdev
->dev
, "unknown element type=%d seid=%d\n",
7723 element_type
, seid
);
7729 * i40e_fetch_switch_configuration - Get switch config from firmware
7730 * @pf: board private structure
7731 * @printconfig: should we print the contents
7733 * Get the current switch configuration from the device and
7734 * extract a few useful SEID values.
7736 int i40e_fetch_switch_configuration(struct i40e_pf
*pf
, bool printconfig
)
7738 struct i40e_aqc_get_switch_config_resp
*sw_config
;
7744 aq_buf
= kzalloc(I40E_AQ_LARGE_BUF
, GFP_KERNEL
);
7748 sw_config
= (struct i40e_aqc_get_switch_config_resp
*)aq_buf
;
7750 u16 num_reported
, num_total
;
7752 ret
= i40e_aq_get_switch_config(&pf
->hw
, sw_config
,
7756 dev_info(&pf
->pdev
->dev
,
7757 "get switch config failed %d aq_err=%x\n",
7758 ret
, pf
->hw
.aq
.asq_last_status
);
7763 num_reported
= le16_to_cpu(sw_config
->header
.num_reported
);
7764 num_total
= le16_to_cpu(sw_config
->header
.num_total
);
7767 dev_info(&pf
->pdev
->dev
,
7768 "header: %d reported %d total\n",
7769 num_reported
, num_total
);
7772 int sz
= sizeof(*sw_config
) * num_reported
;
7774 kfree(pf
->sw_config
);
7775 pf
->sw_config
= kzalloc(sz
, GFP_KERNEL
);
7777 memcpy(pf
->sw_config
, sw_config
, sz
);
7780 for (i
= 0; i
< num_reported
; i
++) {
7781 struct i40e_aqc_switch_config_element_resp
*ele
=
7782 &sw_config
->element
[i
];
7784 i40e_setup_pf_switch_element(pf
, ele
, num_reported
,
7787 } while (next_seid
!= 0);
7794 * i40e_setup_pf_switch - Setup the HW switch on startup or after reset
7795 * @pf: board private structure
7796 * @reinit: if the Main VSI needs to re-initialized.
7798 * Returns 0 on success, negative value on failure
7800 static int i40e_setup_pf_switch(struct i40e_pf
*pf
, bool reinit
)
7802 u32 rxfc
= 0, txfc
= 0, rxfc_reg
;
7805 /* find out what's out there already */
7806 ret
= i40e_fetch_switch_configuration(pf
, false);
7808 dev_info(&pf
->pdev
->dev
,
7809 "couldn't fetch switch config, err %d, aq_err %d\n",
7810 ret
, pf
->hw
.aq
.asq_last_status
);
7813 i40e_pf_reset_stats(pf
);
7815 /* first time setup */
7816 if (pf
->lan_vsi
== I40E_NO_VSI
|| reinit
) {
7817 struct i40e_vsi
*vsi
= NULL
;
7820 /* Set up the PF VSI associated with the PF's main VSI
7821 * that is already in the HW switch
7823 if (pf
->lan_veb
!= I40E_NO_VEB
&& pf
->veb
[pf
->lan_veb
])
7824 uplink_seid
= pf
->veb
[pf
->lan_veb
]->seid
;
7826 uplink_seid
= pf
->mac_seid
;
7827 if (pf
->lan_vsi
== I40E_NO_VSI
)
7828 vsi
= i40e_vsi_setup(pf
, I40E_VSI_MAIN
, uplink_seid
, 0);
7830 vsi
= i40e_vsi_reinit_setup(pf
->vsi
[pf
->lan_vsi
]);
7832 dev_info(&pf
->pdev
->dev
, "setup of MAIN VSI failed\n");
7833 i40e_fdir_teardown(pf
);
7837 /* force a reset of TC and queue layout configurations */
7838 u8 enabled_tc
= pf
->vsi
[pf
->lan_vsi
]->tc_config
.enabled_tc
;
7839 pf
->vsi
[pf
->lan_vsi
]->tc_config
.enabled_tc
= 0;
7840 pf
->vsi
[pf
->lan_vsi
]->seid
= pf
->main_vsi_seid
;
7841 i40e_vsi_config_tc(pf
->vsi
[pf
->lan_vsi
], enabled_tc
);
7843 i40e_vlan_stripping_disable(pf
->vsi
[pf
->lan_vsi
]);
7845 i40e_fdir_sb_setup(pf
);
7847 /* Setup static PF queue filter control settings */
7848 ret
= i40e_setup_pf_filter_control(pf
);
7850 dev_info(&pf
->pdev
->dev
, "setup_pf_filter_control failed: %d\n",
7852 /* Failure here should not stop continuing other steps */
7855 /* enable RSS in the HW, even for only one queue, as the stack can use
7858 if ((pf
->flags
& I40E_FLAG_RSS_ENABLED
))
7859 i40e_config_rss(pf
);
7861 /* fill in link information and enable LSE reporting */
7862 i40e_aq_get_link_info(&pf
->hw
, true, NULL
, NULL
);
7863 i40e_link_event(pf
);
7865 /* Initialize user-specific link properties */
7866 pf
->fc_autoneg_status
= ((pf
->hw
.phy
.link_info
.an_info
&
7867 I40E_AQ_AN_COMPLETED
) ? true : false);
7868 /* requested_mode is set in probe or by ethtool */
7869 if (!pf
->fc_autoneg_status
)
7872 if ((pf
->hw
.phy
.link_info
.an_info
& I40E_AQ_LINK_PAUSE_TX
) &&
7873 (pf
->hw
.phy
.link_info
.an_info
& I40E_AQ_LINK_PAUSE_RX
))
7874 pf
->hw
.fc
.current_mode
= I40E_FC_FULL
;
7875 else if (pf
->hw
.phy
.link_info
.an_info
& I40E_AQ_LINK_PAUSE_TX
)
7876 pf
->hw
.fc
.current_mode
= I40E_FC_TX_PAUSE
;
7877 else if (pf
->hw
.phy
.link_info
.an_info
& I40E_AQ_LINK_PAUSE_RX
)
7878 pf
->hw
.fc
.current_mode
= I40E_FC_RX_PAUSE
;
7880 pf
->hw
.fc
.current_mode
= I40E_FC_NONE
;
7882 /* sync the flow control settings with the auto-neg values */
7883 switch (pf
->hw
.fc
.current_mode
) {
7888 case I40E_FC_TX_PAUSE
:
7892 case I40E_FC_RX_PAUSE
:
7897 case I40E_FC_DEFAULT
:
7904 /* no default case, we have to handle all possibilities here */
7907 wr32(&pf
->hw
, I40E_PRTDCB_FCCFG
, txfc
<< I40E_PRTDCB_FCCFG_TFCE_SHIFT
);
7909 rxfc_reg
= rd32(&pf
->hw
, I40E_PRTDCB_MFLCN
) &
7910 ~I40E_PRTDCB_MFLCN_RFCE_MASK
;
7911 rxfc_reg
|= (rxfc
<< I40E_PRTDCB_MFLCN_RFCE_SHIFT
);
7913 wr32(&pf
->hw
, I40E_PRTDCB_MFLCN
, rxfc_reg
);
7918 /* disable L2 flow control, user can turn it on if they wish */
7919 wr32(&pf
->hw
, I40E_PRTDCB_FCCFG
, 0);
7920 wr32(&pf
->hw
, I40E_PRTDCB_MFLCN
, rd32(&pf
->hw
, I40E_PRTDCB_MFLCN
) &
7921 ~I40E_PRTDCB_MFLCN_RFCE_MASK
);
7930 * i40e_determine_queue_usage - Work out queue distribution
7931 * @pf: board private structure
7933 static void i40e_determine_queue_usage(struct i40e_pf
*pf
)
7937 pf
->num_lan_qps
= 0;
7939 /* Find the max queues to be put into basic use. We'll always be
7940 * using TC0, whether or not DCB is running, and TC0 will get the
7943 queues_left
= pf
->hw
.func_caps
.num_tx_qp
;
7945 if ((queues_left
== 1) ||
7946 !(pf
->flags
& I40E_FLAG_MSIX_ENABLED
) ||
7947 !(pf
->flags
& (I40E_FLAG_RSS_ENABLED
| I40E_FLAG_FD_SB_ENABLED
|
7948 I40E_FLAG_DCB_ENABLED
))) {
7949 /* one qp for PF, no queues for anything else */
7951 pf
->rss_size
= pf
->num_lan_qps
= 1;
7953 /* make sure all the fancies are disabled */
7954 pf
->flags
&= ~(I40E_FLAG_RSS_ENABLED
|
7955 I40E_FLAG_FD_SB_ENABLED
|
7956 I40E_FLAG_FD_ATR_ENABLED
|
7957 I40E_FLAG_DCB_ENABLED
|
7958 I40E_FLAG_SRIOV_ENABLED
|
7959 I40E_FLAG_VMDQ_ENABLED
);
7961 /* Not enough queues for all TCs */
7962 if ((pf
->flags
& I40E_FLAG_DCB_ENABLED
) &&
7963 (queues_left
< I40E_MAX_TRAFFIC_CLASS
)) {
7964 pf
->flags
&= ~I40E_FLAG_DCB_ENABLED
;
7965 dev_info(&pf
->pdev
->dev
, "not enough queues for DCB. DCB is disabled.\n");
7967 pf
->num_lan_qps
= pf
->rss_size_max
;
7968 queues_left
-= pf
->num_lan_qps
;
7971 if (pf
->flags
& I40E_FLAG_FD_SB_ENABLED
) {
7972 if (queues_left
> 1) {
7973 queues_left
-= 1; /* save 1 queue for FD */
7975 pf
->flags
&= ~I40E_FLAG_FD_SB_ENABLED
;
7976 dev_info(&pf
->pdev
->dev
, "not enough queues for Flow Director. Flow Director feature is disabled\n");
7980 if ((pf
->flags
& I40E_FLAG_SRIOV_ENABLED
) &&
7981 pf
->num_vf_qps
&& pf
->num_req_vfs
&& queues_left
) {
7982 pf
->num_req_vfs
= min_t(int, pf
->num_req_vfs
,
7983 (queues_left
/ pf
->num_vf_qps
));
7984 queues_left
-= (pf
->num_req_vfs
* pf
->num_vf_qps
);
7987 if ((pf
->flags
& I40E_FLAG_VMDQ_ENABLED
) &&
7988 pf
->num_vmdq_vsis
&& pf
->num_vmdq_qps
&& queues_left
) {
7989 pf
->num_vmdq_vsis
= min_t(int, pf
->num_vmdq_vsis
,
7990 (queues_left
/ pf
->num_vmdq_qps
));
7991 queues_left
-= (pf
->num_vmdq_vsis
* pf
->num_vmdq_qps
);
7994 pf
->queues_left
= queues_left
;
7999 * i40e_setup_pf_filter_control - Setup PF static filter control
8000 * @pf: PF to be setup
8002 * i40e_setup_pf_filter_control sets up a pf's initial filter control
8003 * settings. If PE/FCoE are enabled then it will also set the per PF
8004 * based filter sizes required for them. It also enables Flow director,
8005 * ethertype and macvlan type filter settings for the pf.
8007 * Returns 0 on success, negative on failure
8009 static int i40e_setup_pf_filter_control(struct i40e_pf
*pf
)
8011 struct i40e_filter_control_settings
*settings
= &pf
->filter_settings
;
8013 settings
->hash_lut_size
= I40E_HASH_LUT_SIZE_128
;
8015 /* Flow Director is enabled */
8016 if (pf
->flags
& (I40E_FLAG_FD_SB_ENABLED
| I40E_FLAG_FD_ATR_ENABLED
))
8017 settings
->enable_fdir
= true;
8019 /* Ethtype and MACVLAN filters enabled for PF */
8020 settings
->enable_ethtype
= true;
8021 settings
->enable_macvlan
= true;
8023 if (i40e_set_filter_control(&pf
->hw
, settings
))
8029 #define INFO_STRING_LEN 255
8030 static void i40e_print_features(struct i40e_pf
*pf
)
8032 struct i40e_hw
*hw
= &pf
->hw
;
8035 string
= kzalloc(INFO_STRING_LEN
, GFP_KERNEL
);
8037 dev_err(&pf
->pdev
->dev
, "Features string allocation failed\n");
8043 buf
+= sprintf(string
, "Features: PF-id[%d] ", hw
->pf_id
);
8044 #ifdef CONFIG_PCI_IOV
8045 buf
+= sprintf(buf
, "VFs: %d ", pf
->num_req_vfs
);
8047 buf
+= sprintf(buf
, "VSIs: %d QP: %d ", pf
->hw
.func_caps
.num_vsis
,
8048 pf
->vsi
[pf
->lan_vsi
]->num_queue_pairs
);
8050 if (pf
->flags
& I40E_FLAG_RSS_ENABLED
)
8051 buf
+= sprintf(buf
, "RSS ");
8052 buf
+= sprintf(buf
, "FDir ");
8053 if (pf
->flags
& I40E_FLAG_FD_ATR_ENABLED
)
8054 buf
+= sprintf(buf
, "ATR ");
8055 if (pf
->flags
& I40E_FLAG_FD_SB_ENABLED
)
8056 buf
+= sprintf(buf
, "NTUPLE ");
8057 if (pf
->flags
& I40E_FLAG_DCB_ENABLED
)
8058 buf
+= sprintf(buf
, "DCB ");
8059 if (pf
->flags
& I40E_FLAG_PTP
)
8060 buf
+= sprintf(buf
, "PTP ");
8062 BUG_ON(buf
> (string
+ INFO_STRING_LEN
));
8063 dev_info(&pf
->pdev
->dev
, "%s\n", string
);
8068 * i40e_probe - Device initialization routine
8069 * @pdev: PCI device information struct
8070 * @ent: entry in i40e_pci_tbl
8072 * i40e_probe initializes a pf identified by a pci_dev structure.
8073 * The OS initialization, configuring of the pf private structure,
8074 * and a hardware reset occur.
8076 * Returns 0 on success, negative on failure
8078 static int i40e_probe(struct pci_dev
*pdev
, const struct pci_device_id
*ent
)
8080 struct i40e_driver_version dv
;
8083 static u16 pfs_found
;
8088 err
= pci_enable_device_mem(pdev
);
8092 /* set up for high or low dma */
8093 err
= dma_set_mask_and_coherent(&pdev
->dev
, DMA_BIT_MASK(64));
8095 err
= dma_set_mask_and_coherent(&pdev
->dev
, DMA_BIT_MASK(32));
8098 "DMA configuration failed: 0x%x\n", err
);
8103 /* set up pci connections */
8104 err
= pci_request_selected_regions(pdev
, pci_select_bars(pdev
,
8105 IORESOURCE_MEM
), i40e_driver_name
);
8107 dev_info(&pdev
->dev
,
8108 "pci_request_selected_regions failed %d\n", err
);
8112 pci_enable_pcie_error_reporting(pdev
);
8113 pci_set_master(pdev
);
8115 /* Now that we have a PCI connection, we need to do the
8116 * low level device setup. This is primarily setting up
8117 * the Admin Queue structures and then querying for the
8118 * device's current profile information.
8120 pf
= kzalloc(sizeof(*pf
), GFP_KERNEL
);
8127 set_bit(__I40E_DOWN
, &pf
->state
);
8131 hw
->hw_addr
= ioremap(pci_resource_start(pdev
, 0),
8132 pci_resource_len(pdev
, 0));
8135 dev_info(&pdev
->dev
, "ioremap(0x%04x, 0x%04x) failed: 0x%x\n",
8136 (unsigned int)pci_resource_start(pdev
, 0),
8137 (unsigned int)pci_resource_len(pdev
, 0), err
);
8140 hw
->vendor_id
= pdev
->vendor
;
8141 hw
->device_id
= pdev
->device
;
8142 pci_read_config_byte(pdev
, PCI_REVISION_ID
, &hw
->revision_id
);
8143 hw
->subsystem_vendor_id
= pdev
->subsystem_vendor
;
8144 hw
->subsystem_device_id
= pdev
->subsystem_device
;
8145 hw
->bus
.device
= PCI_SLOT(pdev
->devfn
);
8146 hw
->bus
.func
= PCI_FUNC(pdev
->devfn
);
8147 pf
->instance
= pfs_found
;
8149 /* do a special CORER for clearing PXE mode once at init */
8150 if (hw
->revision_id
== 0 &&
8151 (rd32(hw
, I40E_GLLAN_RCTL_0
) & I40E_GLLAN_RCTL_0_PXE_MODE_MASK
)) {
8152 wr32(hw
, I40E_GLGEN_RTRIG
, I40E_GLGEN_RTRIG_CORER_MASK
);
8157 i40e_clear_pxe_mode(hw
);
8160 /* Reset here to make sure all is clean and to define PF 'n' */
8161 err
= i40e_pf_reset(hw
);
8163 dev_info(&pdev
->dev
, "Initial pf_reset failed: %d\n", err
);
8168 hw
->aq
.num_arq_entries
= I40E_AQ_LEN
;
8169 hw
->aq
.num_asq_entries
= I40E_AQ_LEN
;
8170 hw
->aq
.arq_buf_size
= I40E_MAX_AQ_BUF_SIZE
;
8171 hw
->aq
.asq_buf_size
= I40E_MAX_AQ_BUF_SIZE
;
8172 pf
->adminq_work_limit
= I40E_AQ_WORK_LIMIT
;
8173 snprintf(pf
->misc_int_name
, sizeof(pf
->misc_int_name
) - 1,
8175 dev_driver_string(&pf
->pdev
->dev
), pf
->hw
.pf_id
);
8177 err
= i40e_init_shared_code(hw
);
8179 dev_info(&pdev
->dev
, "init_shared_code failed: %d\n", err
);
8183 /* set up a default setting for link flow control */
8184 pf
->hw
.fc
.requested_mode
= I40E_FC_NONE
;
8186 err
= i40e_init_adminq(hw
);
8187 dev_info(&pdev
->dev
, "%s\n", i40e_fw_version_str(hw
));
8189 dev_info(&pdev
->dev
,
8190 "init_adminq failed: %d expecting API %02x.%02x\n",
8192 I40E_FW_API_VERSION_MAJOR
, I40E_FW_API_VERSION_MINOR
);
8196 i40e_verify_eeprom(pf
);
8198 i40e_clear_pxe_mode(hw
);
8199 err
= i40e_get_capabilities(pf
);
8201 goto err_adminq_setup
;
8203 err
= i40e_sw_init(pf
);
8205 dev_info(&pdev
->dev
, "sw_init failed: %d\n", err
);
8209 err
= i40e_init_lan_hmc(hw
, hw
->func_caps
.num_tx_qp
,
8210 hw
->func_caps
.num_rx_qp
,
8211 pf
->fcoe_hmc_cntx_num
, pf
->fcoe_hmc_filt_num
);
8213 dev_info(&pdev
->dev
, "init_lan_hmc failed: %d\n", err
);
8214 goto err_init_lan_hmc
;
8217 err
= i40e_configure_lan_hmc(hw
, I40E_HMC_MODEL_DIRECT_ONLY
);
8219 dev_info(&pdev
->dev
, "configure_lan_hmc failed: %d\n", err
);
8221 goto err_configure_lan_hmc
;
8224 i40e_get_mac_addr(hw
, hw
->mac
.addr
);
8225 if (!is_valid_ether_addr(hw
->mac
.addr
)) {
8226 dev_info(&pdev
->dev
, "invalid MAC address %pM\n", hw
->mac
.addr
);
8230 dev_info(&pdev
->dev
, "MAC address: %pM\n", hw
->mac
.addr
);
8231 memcpy(hw
->mac
.perm_addr
, hw
->mac
.addr
, ETH_ALEN
);
8233 pci_set_drvdata(pdev
, pf
);
8234 pci_save_state(pdev
);
8235 #ifdef CONFIG_I40E_DCB
8236 err
= i40e_init_pf_dcb(pf
);
8238 dev_info(&pdev
->dev
, "init_pf_dcb failed: %d\n", err
);
8239 pf
->flags
&= ~I40E_FLAG_DCB_ENABLED
;
8242 #endif /* CONFIG_I40E_DCB */
8244 /* set up periodic task facility */
8245 setup_timer(&pf
->service_timer
, i40e_service_timer
, (unsigned long)pf
);
8246 pf
->service_timer_period
= HZ
;
8248 INIT_WORK(&pf
->service_task
, i40e_service_task
);
8249 clear_bit(__I40E_SERVICE_SCHED
, &pf
->state
);
8250 pf
->flags
|= I40E_FLAG_NEED_LINK_UPDATE
;
8251 pf
->link_check_timeout
= jiffies
;
8253 /* WoL defaults to disabled */
8255 device_set_wakeup_enable(&pf
->pdev
->dev
, pf
->wol_en
);
8257 /* set up the main switch operations */
8258 i40e_determine_queue_usage(pf
);
8259 i40e_init_interrupt_scheme(pf
);
8261 /* Set up the *vsi struct based on the number of VSIs in the HW,
8262 * and set up our local tracking of the MAIN PF vsi.
8264 len
= sizeof(struct i40e_vsi
*) * pf
->hw
.func_caps
.num_vsis
;
8265 pf
->vsi
= kzalloc(len
, GFP_KERNEL
);
8268 goto err_switch_setup
;
8271 err
= i40e_setup_pf_switch(pf
, false);
8273 dev_info(&pdev
->dev
, "setup_pf_switch failed: %d\n", err
);
8277 /* The main driver is (mostly) up and happy. We need to set this state
8278 * before setting up the misc vector or we get a race and the vector
8279 * ends up disabled forever.
8281 clear_bit(__I40E_DOWN
, &pf
->state
);
8283 /* In case of MSIX we are going to setup the misc vector right here
8284 * to handle admin queue events etc. In case of legacy and MSI
8285 * the misc functionality and queue processing is combined in
8286 * the same vector and that gets setup at open.
8288 if (pf
->flags
& I40E_FLAG_MSIX_ENABLED
) {
8289 err
= i40e_setup_misc_vector(pf
);
8291 dev_info(&pdev
->dev
,
8292 "setup of misc vector failed: %d\n", err
);
8297 /* prep for VF support */
8298 if ((pf
->flags
& I40E_FLAG_SRIOV_ENABLED
) &&
8299 (pf
->flags
& I40E_FLAG_MSIX_ENABLED
) &&
8300 !test_bit(__I40E_BAD_EEPROM
, &pf
->state
)) {
8303 /* disable link interrupts for VFs */
8304 val
= rd32(hw
, I40E_PFGEN_PORTMDIO_NUM
);
8305 val
&= ~I40E_PFGEN_PORTMDIO_NUM_VFLINK_STAT_ENA_MASK
;
8306 wr32(hw
, I40E_PFGEN_PORTMDIO_NUM
, val
);
8309 if (pci_num_vf(pdev
)) {
8310 dev_info(&pdev
->dev
,
8311 "Active VFs found, allocating resources.\n");
8312 err
= i40e_alloc_vfs(pf
, pci_num_vf(pdev
));
8314 dev_info(&pdev
->dev
,
8315 "Error %d allocating resources for existing VFs\n",
8322 i40e_dbg_pf_init(pf
);
8324 /* tell the firmware that we're starting */
8325 dv
.major_version
= DRV_VERSION_MAJOR
;
8326 dv
.minor_version
= DRV_VERSION_MINOR
;
8327 dv
.build_version
= DRV_VERSION_BUILD
;
8328 dv
.subbuild_version
= 0;
8329 i40e_aq_send_driver_version(&pf
->hw
, &dv
, NULL
);
8331 /* since everything's happy, start the service_task timer */
8332 mod_timer(&pf
->service_timer
,
8333 round_jiffies(jiffies
+ pf
->service_timer_period
));
8335 /* Get the negotiated link width and speed from PCI config space */
8336 pcie_capability_read_word(pf
->pdev
, PCI_EXP_LNKSTA
, &link_status
);
8338 i40e_set_pci_config_data(hw
, link_status
);
8340 dev_info(&pdev
->dev
, "PCI-Express: %s %s\n",
8341 (hw
->bus
.speed
== i40e_bus_speed_8000
? "Speed 8.0GT/s" :
8342 hw
->bus
.speed
== i40e_bus_speed_5000
? "Speed 5.0GT/s" :
8343 hw
->bus
.speed
== i40e_bus_speed_2500
? "Speed 2.5GT/s" :
8345 (hw
->bus
.width
== i40e_bus_width_pcie_x8
? "Width x8" :
8346 hw
->bus
.width
== i40e_bus_width_pcie_x4
? "Width x4" :
8347 hw
->bus
.width
== i40e_bus_width_pcie_x2
? "Width x2" :
8348 hw
->bus
.width
== i40e_bus_width_pcie_x1
? "Width x1" :
8351 if (hw
->bus
.width
< i40e_bus_width_pcie_x8
||
8352 hw
->bus
.speed
< i40e_bus_speed_8000
) {
8353 dev_warn(&pdev
->dev
, "PCI-Express bandwidth available for this device may be insufficient for optimal performance.\n");
8354 dev_warn(&pdev
->dev
, "Please move the device to a different PCI-e link with more lanes and/or higher transfer rate.\n");
8357 /* print a string summarizing features */
8358 i40e_print_features(pf
);
8362 /* Unwind what we've done if something failed in the setup */
8364 set_bit(__I40E_DOWN
, &pf
->state
);
8365 i40e_clear_interrupt_scheme(pf
);
8368 i40e_reset_interrupt_capability(pf
);
8369 del_timer_sync(&pf
->service_timer
);
8370 #ifdef CONFIG_I40E_DCB
8372 #endif /* CONFIG_I40E_DCB */
8374 err_configure_lan_hmc
:
8375 (void)i40e_shutdown_lan_hmc(hw
);
8378 kfree(pf
->irq_pile
);
8381 (void)i40e_shutdown_adminq(hw
);
8383 iounmap(hw
->hw_addr
);
8387 pci_disable_pcie_error_reporting(pdev
);
8388 pci_release_selected_regions(pdev
,
8389 pci_select_bars(pdev
, IORESOURCE_MEM
));
8392 pci_disable_device(pdev
);
8397 * i40e_remove - Device removal routine
8398 * @pdev: PCI device information struct
8400 * i40e_remove is called by the PCI subsystem to alert the driver
8401 * that is should release a PCI device. This could be caused by a
8402 * Hot-Plug event, or because the driver is going to be removed from
8405 static void i40e_remove(struct pci_dev
*pdev
)
8407 struct i40e_pf
*pf
= pci_get_drvdata(pdev
);
8408 i40e_status ret_code
;
8412 i40e_dbg_pf_exit(pf
);
8416 /* no more scheduling of any task */
8417 set_bit(__I40E_DOWN
, &pf
->state
);
8418 del_timer_sync(&pf
->service_timer
);
8419 cancel_work_sync(&pf
->service_task
);
8421 if (pf
->flags
& I40E_FLAG_SRIOV_ENABLED
) {
8423 pf
->flags
&= ~I40E_FLAG_SRIOV_ENABLED
;
8426 i40e_fdir_teardown(pf
);
8428 /* If there is a switch structure or any orphans, remove them.
8429 * This will leave only the PF's VSI remaining.
8431 for (i
= 0; i
< I40E_MAX_VEB
; i
++) {
8435 if (pf
->veb
[i
]->uplink_seid
== pf
->mac_seid
||
8436 pf
->veb
[i
]->uplink_seid
== 0)
8437 i40e_switch_branch_release(pf
->veb
[i
]);
8440 /* Now we can shutdown the PF's VSI, just before we kill
8443 if (pf
->vsi
[pf
->lan_vsi
])
8444 i40e_vsi_release(pf
->vsi
[pf
->lan_vsi
]);
8446 i40e_stop_misc_vector(pf
);
8447 if (pf
->flags
& I40E_FLAG_MSIX_ENABLED
) {
8448 synchronize_irq(pf
->msix_entries
[0].vector
);
8449 free_irq(pf
->msix_entries
[0].vector
, pf
);
8452 /* shutdown and destroy the HMC */
8453 ret_code
= i40e_shutdown_lan_hmc(&pf
->hw
);
8455 dev_warn(&pdev
->dev
,
8456 "Failed to destroy the HMC resources: %d\n", ret_code
);
8458 /* shutdown the adminq */
8459 ret_code
= i40e_shutdown_adminq(&pf
->hw
);
8461 dev_warn(&pdev
->dev
,
8462 "Failed to destroy the Admin Queue resources: %d\n",
8465 /* Clear all dynamic memory lists of rings, q_vectors, and VSIs */
8466 i40e_clear_interrupt_scheme(pf
);
8467 for (i
= 0; i
< pf
->hw
.func_caps
.num_vsis
; i
++) {
8469 i40e_vsi_clear_rings(pf
->vsi
[i
]);
8470 i40e_vsi_clear(pf
->vsi
[i
]);
8475 for (i
= 0; i
< I40E_MAX_VEB
; i
++) {
8481 kfree(pf
->irq_pile
);
8482 kfree(pf
->sw_config
);
8485 /* force a PF reset to clean anything leftover */
8486 reg
= rd32(&pf
->hw
, I40E_PFGEN_CTRL
);
8487 wr32(&pf
->hw
, I40E_PFGEN_CTRL
, (reg
| I40E_PFGEN_CTRL_PFSWR_MASK
));
8488 i40e_flush(&pf
->hw
);
8490 iounmap(pf
->hw
.hw_addr
);
8492 pci_release_selected_regions(pdev
,
8493 pci_select_bars(pdev
, IORESOURCE_MEM
));
8495 pci_disable_pcie_error_reporting(pdev
);
8496 pci_disable_device(pdev
);
8500 * i40e_pci_error_detected - warning that something funky happened in PCI land
8501 * @pdev: PCI device information struct
8503 * Called to warn that something happened and the error handling steps
8504 * are in progress. Allows the driver to quiesce things, be ready for
8507 static pci_ers_result_t
i40e_pci_error_detected(struct pci_dev
*pdev
,
8508 enum pci_channel_state error
)
8510 struct i40e_pf
*pf
= pci_get_drvdata(pdev
);
8512 dev_info(&pdev
->dev
, "%s: error %d\n", __func__
, error
);
8514 /* shutdown all operations */
8515 if (!test_bit(__I40E_SUSPENDED
, &pf
->state
)) {
8517 i40e_prep_for_reset(pf
);
8521 /* Request a slot reset */
8522 return PCI_ERS_RESULT_NEED_RESET
;
8526 * i40e_pci_error_slot_reset - a PCI slot reset just happened
8527 * @pdev: PCI device information struct
8529 * Called to find if the driver can work with the device now that
8530 * the pci slot has been reset. If a basic connection seems good
8531 * (registers are readable and have sane content) then return a
8532 * happy little PCI_ERS_RESULT_xxx.
8534 static pci_ers_result_t
i40e_pci_error_slot_reset(struct pci_dev
*pdev
)
8536 struct i40e_pf
*pf
= pci_get_drvdata(pdev
);
8537 pci_ers_result_t result
;
8541 dev_info(&pdev
->dev
, "%s\n", __func__
);
8542 if (pci_enable_device_mem(pdev
)) {
8543 dev_info(&pdev
->dev
,
8544 "Cannot re-enable PCI device after reset.\n");
8545 result
= PCI_ERS_RESULT_DISCONNECT
;
8547 pci_set_master(pdev
);
8548 pci_restore_state(pdev
);
8549 pci_save_state(pdev
);
8550 pci_wake_from_d3(pdev
, false);
8552 reg
= rd32(&pf
->hw
, I40E_GLGEN_RTRIG
);
8554 result
= PCI_ERS_RESULT_RECOVERED
;
8556 result
= PCI_ERS_RESULT_DISCONNECT
;
8559 err
= pci_cleanup_aer_uncorrect_error_status(pdev
);
8561 dev_info(&pdev
->dev
,
8562 "pci_cleanup_aer_uncorrect_error_status failed 0x%0x\n",
8564 /* non-fatal, continue */
8571 * i40e_pci_error_resume - restart operations after PCI error recovery
8572 * @pdev: PCI device information struct
8574 * Called to allow the driver to bring things back up after PCI error
8575 * and/or reset recovery has finished.
8577 static void i40e_pci_error_resume(struct pci_dev
*pdev
)
8579 struct i40e_pf
*pf
= pci_get_drvdata(pdev
);
8581 dev_info(&pdev
->dev
, "%s\n", __func__
);
8582 if (test_bit(__I40E_SUSPENDED
, &pf
->state
))
8586 i40e_handle_reset_warning(pf
);
8591 * i40e_shutdown - PCI callback for shutting down
8592 * @pdev: PCI device information struct
8594 static void i40e_shutdown(struct pci_dev
*pdev
)
8596 struct i40e_pf
*pf
= pci_get_drvdata(pdev
);
8597 struct i40e_hw
*hw
= &pf
->hw
;
8599 set_bit(__I40E_SUSPENDED
, &pf
->state
);
8600 set_bit(__I40E_DOWN
, &pf
->state
);
8602 i40e_prep_for_reset(pf
);
8605 wr32(hw
, I40E_PFPM_APM
, (pf
->wol_en
? I40E_PFPM_APM_APME_MASK
: 0));
8606 wr32(hw
, I40E_PFPM_WUFC
, (pf
->wol_en
? I40E_PFPM_WUFC_MAG_MASK
: 0));
8608 if (system_state
== SYSTEM_POWER_OFF
) {
8609 pci_wake_from_d3(pdev
, pf
->wol_en
);
8610 pci_set_power_state(pdev
, PCI_D3hot
);
8616 * i40e_suspend - PCI callback for moving to D3
8617 * @pdev: PCI device information struct
8619 static int i40e_suspend(struct pci_dev
*pdev
, pm_message_t state
)
8621 struct i40e_pf
*pf
= pci_get_drvdata(pdev
);
8622 struct i40e_hw
*hw
= &pf
->hw
;
8624 set_bit(__I40E_SUSPENDED
, &pf
->state
);
8625 set_bit(__I40E_DOWN
, &pf
->state
);
8627 i40e_prep_for_reset(pf
);
8630 wr32(hw
, I40E_PFPM_APM
, (pf
->wol_en
? I40E_PFPM_APM_APME_MASK
: 0));
8631 wr32(hw
, I40E_PFPM_WUFC
, (pf
->wol_en
? I40E_PFPM_WUFC_MAG_MASK
: 0));
8633 pci_wake_from_d3(pdev
, pf
->wol_en
);
8634 pci_set_power_state(pdev
, PCI_D3hot
);
8640 * i40e_resume - PCI callback for waking up from D3
8641 * @pdev: PCI device information struct
8643 static int i40e_resume(struct pci_dev
*pdev
)
8645 struct i40e_pf
*pf
= pci_get_drvdata(pdev
);
8648 pci_set_power_state(pdev
, PCI_D0
);
8649 pci_restore_state(pdev
);
8650 /* pci_restore_state() clears dev->state_saves, so
8651 * call pci_save_state() again to restore it.
8653 pci_save_state(pdev
);
8655 err
= pci_enable_device_mem(pdev
);
8658 "%s: Cannot enable PCI device from suspend\n",
8662 pci_set_master(pdev
);
8664 /* no wakeup events while running */
8665 pci_wake_from_d3(pdev
, false);
8667 /* handling the reset will rebuild the device state */
8668 if (test_and_clear_bit(__I40E_SUSPENDED
, &pf
->state
)) {
8669 clear_bit(__I40E_DOWN
, &pf
->state
);
8671 i40e_reset_and_rebuild(pf
, false);
8679 static const struct pci_error_handlers i40e_err_handler
= {
8680 .error_detected
= i40e_pci_error_detected
,
8681 .slot_reset
= i40e_pci_error_slot_reset
,
8682 .resume
= i40e_pci_error_resume
,
8685 static struct pci_driver i40e_driver
= {
8686 .name
= i40e_driver_name
,
8687 .id_table
= i40e_pci_tbl
,
8688 .probe
= i40e_probe
,
8689 .remove
= i40e_remove
,
8691 .suspend
= i40e_suspend
,
8692 .resume
= i40e_resume
,
8694 .shutdown
= i40e_shutdown
,
8695 .err_handler
= &i40e_err_handler
,
8696 .sriov_configure
= i40e_pci_sriov_configure
,
8700 * i40e_init_module - Driver registration routine
8702 * i40e_init_module is the first routine called when the driver is
8703 * loaded. All it does is register with the PCI subsystem.
8705 static int __init
i40e_init_module(void)
8707 pr_info("%s: %s - version %s\n", i40e_driver_name
,
8708 i40e_driver_string
, i40e_driver_version_str
);
8709 pr_info("%s: %s\n", i40e_driver_name
, i40e_copyright
);
8711 return pci_register_driver(&i40e_driver
);
8713 module_init(i40e_init_module
);
8716 * i40e_exit_module - Driver exit cleanup routine
8718 * i40e_exit_module is called just before the driver is removed
8721 static void __exit
i40e_exit_module(void)
8723 pci_unregister_driver(&i40e_driver
);
8726 module_exit(i40e_exit_module
);