1 /*******************************************************************************
3 * Intel Ethernet Controller XL710 Family Linux Driver
4 * Copyright(c) 2013 - 2016 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 ******************************************************************************/
27 #include <linux/etherdevice.h>
28 #include <linux/of_net.h>
29 #include <linux/pci.h>
33 #include "i40e_diag.h"
34 #include <net/udp_tunnel.h>
36 const char i40e_driver_name
[] = "i40e";
37 static const char i40e_driver_string
[] =
38 "Intel(R) Ethernet Connection XL710 Network Driver";
42 #define DRV_VERSION_MAJOR 1
43 #define DRV_VERSION_MINOR 6
44 #define DRV_VERSION_BUILD 12
45 #define DRV_VERSION __stringify(DRV_VERSION_MAJOR) "." \
46 __stringify(DRV_VERSION_MINOR) "." \
47 __stringify(DRV_VERSION_BUILD) DRV_KERN
48 const char i40e_driver_version_str
[] = DRV_VERSION
;
49 static const char i40e_copyright
[] = "Copyright (c) 2013 - 2014 Intel Corporation.";
51 /* a bit of forward declarations */
52 static void i40e_vsi_reinit_locked(struct i40e_vsi
*vsi
);
53 static void i40e_handle_reset_warning(struct i40e_pf
*pf
);
54 static int i40e_add_vsi(struct i40e_vsi
*vsi
);
55 static int i40e_add_veb(struct i40e_veb
*veb
, struct i40e_vsi
*vsi
);
56 static int i40e_setup_pf_switch(struct i40e_pf
*pf
, bool reinit
);
57 static int i40e_setup_misc_vector(struct i40e_pf
*pf
);
58 static void i40e_determine_queue_usage(struct i40e_pf
*pf
);
59 static int i40e_setup_pf_filter_control(struct i40e_pf
*pf
);
60 static void i40e_fill_rss_lut(struct i40e_pf
*pf
, u8
*lut
,
61 u16 rss_table_size
, u16 rss_size
);
62 static void i40e_fdir_sb_setup(struct i40e_pf
*pf
);
63 static int i40e_veb_get_bw_info(struct i40e_veb
*veb
);
65 /* i40e_pci_tbl - PCI Device ID Table
67 * Last entry must be all 0s
69 * { Vendor ID, Device ID, SubVendor ID, SubDevice ID,
70 * Class, Class Mask, private data (not used) }
72 static const struct pci_device_id i40e_pci_tbl
[] = {
73 {PCI_VDEVICE(INTEL
, I40E_DEV_ID_SFP_XL710
), 0},
74 {PCI_VDEVICE(INTEL
, I40E_DEV_ID_QEMU
), 0},
75 {PCI_VDEVICE(INTEL
, I40E_DEV_ID_KX_B
), 0},
76 {PCI_VDEVICE(INTEL
, I40E_DEV_ID_KX_C
), 0},
77 {PCI_VDEVICE(INTEL
, I40E_DEV_ID_QSFP_A
), 0},
78 {PCI_VDEVICE(INTEL
, I40E_DEV_ID_QSFP_B
), 0},
79 {PCI_VDEVICE(INTEL
, I40E_DEV_ID_QSFP_C
), 0},
80 {PCI_VDEVICE(INTEL
, I40E_DEV_ID_10G_BASE_T
), 0},
81 {PCI_VDEVICE(INTEL
, I40E_DEV_ID_10G_BASE_T4
), 0},
82 {PCI_VDEVICE(INTEL
, I40E_DEV_ID_20G_KR2
), 0},
83 {PCI_VDEVICE(INTEL
, I40E_DEV_ID_KX_X722
), 0},
84 {PCI_VDEVICE(INTEL
, I40E_DEV_ID_QSFP_X722
), 0},
85 {PCI_VDEVICE(INTEL
, I40E_DEV_ID_SFP_X722
), 0},
86 {PCI_VDEVICE(INTEL
, I40E_DEV_ID_1G_BASE_T_X722
), 0},
87 {PCI_VDEVICE(INTEL
, I40E_DEV_ID_10G_BASE_T_X722
), 0},
88 {PCI_VDEVICE(INTEL
, I40E_DEV_ID_SFP_I_X722
), 0},
89 {PCI_VDEVICE(INTEL
, I40E_DEV_ID_20G_KR2
), 0},
90 {PCI_VDEVICE(INTEL
, I40E_DEV_ID_20G_KR2_A
), 0},
91 /* required last entry */
94 MODULE_DEVICE_TABLE(pci
, i40e_pci_tbl
);
96 #define I40E_MAX_VF_COUNT 128
97 static int debug
= -1;
98 module_param(debug
, int, 0);
99 MODULE_PARM_DESC(debug
, "Debug level (0=none,...,16=all)");
101 MODULE_AUTHOR("Intel Corporation, <e1000-devel@lists.sourceforge.net>");
102 MODULE_DESCRIPTION("Intel(R) Ethernet Connection XL710 Network Driver");
103 MODULE_LICENSE("GPL");
104 MODULE_VERSION(DRV_VERSION
);
106 static struct workqueue_struct
*i40e_wq
;
109 * i40e_allocate_dma_mem_d - OS specific memory alloc for shared code
110 * @hw: pointer to the HW structure
111 * @mem: ptr to mem struct to fill out
112 * @size: size of memory requested
113 * @alignment: what to align the allocation to
115 int i40e_allocate_dma_mem_d(struct i40e_hw
*hw
, struct i40e_dma_mem
*mem
,
116 u64 size
, u32 alignment
)
118 struct i40e_pf
*pf
= (struct i40e_pf
*)hw
->back
;
120 mem
->size
= ALIGN(size
, alignment
);
121 mem
->va
= dma_zalloc_coherent(&pf
->pdev
->dev
, mem
->size
,
122 &mem
->pa
, GFP_KERNEL
);
130 * i40e_free_dma_mem_d - OS specific memory free for shared code
131 * @hw: pointer to the HW structure
132 * @mem: ptr to mem struct to free
134 int i40e_free_dma_mem_d(struct i40e_hw
*hw
, struct i40e_dma_mem
*mem
)
136 struct i40e_pf
*pf
= (struct i40e_pf
*)hw
->back
;
138 dma_free_coherent(&pf
->pdev
->dev
, mem
->size
, mem
->va
, mem
->pa
);
147 * i40e_allocate_virt_mem_d - OS specific memory alloc for shared code
148 * @hw: pointer to the HW structure
149 * @mem: ptr to mem struct to fill out
150 * @size: size of memory requested
152 int i40e_allocate_virt_mem_d(struct i40e_hw
*hw
, struct i40e_virt_mem
*mem
,
156 mem
->va
= kzalloc(size
, GFP_KERNEL
);
165 * i40e_free_virt_mem_d - OS specific memory free for shared code
166 * @hw: pointer to the HW structure
167 * @mem: ptr to mem struct to free
169 int i40e_free_virt_mem_d(struct i40e_hw
*hw
, struct i40e_virt_mem
*mem
)
171 /* it's ok to kfree a NULL pointer */
180 * i40e_get_lump - find a lump of free generic resource
181 * @pf: board private structure
182 * @pile: the pile of resource to search
183 * @needed: the number of items needed
184 * @id: an owner id to stick on the items assigned
186 * Returns the base item index of the lump, or negative for error
188 * The search_hint trick and lack of advanced fit-finding only work
189 * because we're highly likely to have all the same size lump requests.
190 * Linear search time and any fragmentation should be minimal.
192 static int i40e_get_lump(struct i40e_pf
*pf
, struct i40e_lump_tracking
*pile
,
198 if (!pile
|| needed
== 0 || id
>= I40E_PILE_VALID_BIT
) {
199 dev_info(&pf
->pdev
->dev
,
200 "param err: pile=%p needed=%d id=0x%04x\n",
205 /* start the linear search with an imperfect hint */
206 i
= pile
->search_hint
;
207 while (i
< pile
->num_entries
) {
208 /* skip already allocated entries */
209 if (pile
->list
[i
] & I40E_PILE_VALID_BIT
) {
214 /* do we have enough in this lump? */
215 for (j
= 0; (j
< needed
) && ((i
+j
) < pile
->num_entries
); j
++) {
216 if (pile
->list
[i
+j
] & I40E_PILE_VALID_BIT
)
221 /* there was enough, so assign it to the requestor */
222 for (j
= 0; j
< needed
; j
++)
223 pile
->list
[i
+j
] = id
| I40E_PILE_VALID_BIT
;
225 pile
->search_hint
= i
+ j
;
229 /* not enough, so skip over it and continue looking */
237 * i40e_put_lump - return a lump of generic resource
238 * @pile: the pile of resource to search
239 * @index: the base item index
240 * @id: the owner id of the items assigned
242 * Returns the count of items in the lump
244 static int i40e_put_lump(struct i40e_lump_tracking
*pile
, u16 index
, u16 id
)
246 int valid_id
= (id
| I40E_PILE_VALID_BIT
);
250 if (!pile
|| index
>= pile
->num_entries
)
254 i
< pile
->num_entries
&& pile
->list
[i
] == valid_id
;
260 if (count
&& index
< pile
->search_hint
)
261 pile
->search_hint
= index
;
267 * i40e_find_vsi_from_id - searches for the vsi with the given id
268 * @pf - the pf structure to search for the vsi
269 * @id - id of the vsi it is searching for
271 struct i40e_vsi
*i40e_find_vsi_from_id(struct i40e_pf
*pf
, u16 id
)
275 for (i
= 0; i
< pf
->num_alloc_vsi
; i
++)
276 if (pf
->vsi
[i
] && (pf
->vsi
[i
]->id
== id
))
283 * i40e_service_event_schedule - Schedule the service task to wake up
284 * @pf: board private structure
286 * If not already scheduled, this puts the task into the work queue
288 void i40e_service_event_schedule(struct i40e_pf
*pf
)
290 if (!test_bit(__I40E_DOWN
, &pf
->state
) &&
291 !test_bit(__I40E_RESET_RECOVERY_PENDING
, &pf
->state
) &&
292 !test_and_set_bit(__I40E_SERVICE_SCHED
, &pf
->state
))
293 queue_work(i40e_wq
, &pf
->service_task
);
297 * i40e_tx_timeout - Respond to a Tx Hang
298 * @netdev: network interface device structure
300 * If any port has noticed a Tx timeout, it is likely that the whole
301 * device is munged, not just the one netdev port, so go for the full
305 void i40e_tx_timeout(struct net_device
*netdev
)
307 static void i40e_tx_timeout(struct net_device
*netdev
)
310 struct i40e_netdev_priv
*np
= netdev_priv(netdev
);
311 struct i40e_vsi
*vsi
= np
->vsi
;
312 struct i40e_pf
*pf
= vsi
->back
;
313 struct i40e_ring
*tx_ring
= NULL
;
314 unsigned int i
, hung_queue
= 0;
317 pf
->tx_timeout_count
++;
319 /* find the stopped queue the same way the stack does */
320 for (i
= 0; i
< netdev
->num_tx_queues
; i
++) {
321 struct netdev_queue
*q
;
322 unsigned long trans_start
;
324 q
= netdev_get_tx_queue(netdev
, i
);
325 trans_start
= q
->trans_start
;
326 if (netif_xmit_stopped(q
) &&
328 (trans_start
+ netdev
->watchdog_timeo
))) {
334 if (i
== netdev
->num_tx_queues
) {
335 netdev_info(netdev
, "tx_timeout: no netdev hung queue found\n");
337 /* now that we have an index, find the tx_ring struct */
338 for (i
= 0; i
< vsi
->num_queue_pairs
; i
++) {
339 if (vsi
->tx_rings
[i
] && vsi
->tx_rings
[i
]->desc
) {
341 vsi
->tx_rings
[i
]->queue_index
) {
342 tx_ring
= vsi
->tx_rings
[i
];
349 if (time_after(jiffies
, (pf
->tx_timeout_last_recovery
+ HZ
*20)))
350 pf
->tx_timeout_recovery_level
= 1; /* reset after some time */
351 else if (time_before(jiffies
,
352 (pf
->tx_timeout_last_recovery
+ netdev
->watchdog_timeo
)))
353 return; /* don't do any new action before the next timeout */
356 head
= i40e_get_head(tx_ring
);
357 /* Read interrupt register */
358 if (pf
->flags
& I40E_FLAG_MSIX_ENABLED
)
360 I40E_PFINT_DYN_CTLN(tx_ring
->q_vector
->v_idx
+
361 tx_ring
->vsi
->base_vector
- 1));
363 val
= rd32(&pf
->hw
, I40E_PFINT_DYN_CTL0
);
365 netdev_info(netdev
, "tx_timeout: VSI_seid: %d, Q %d, NTC: 0x%x, HWB: 0x%x, NTU: 0x%x, TAIL: 0x%x, INT: 0x%x\n",
366 vsi
->seid
, hung_queue
, tx_ring
->next_to_clean
,
367 head
, tx_ring
->next_to_use
,
368 readl(tx_ring
->tail
), val
);
371 pf
->tx_timeout_last_recovery
= jiffies
;
372 netdev_info(netdev
, "tx_timeout recovery level %d, hung_queue %d\n",
373 pf
->tx_timeout_recovery_level
, hung_queue
);
375 switch (pf
->tx_timeout_recovery_level
) {
377 set_bit(__I40E_PF_RESET_REQUESTED
, &pf
->state
);
380 set_bit(__I40E_CORE_RESET_REQUESTED
, &pf
->state
);
383 set_bit(__I40E_GLOBAL_RESET_REQUESTED
, &pf
->state
);
386 netdev_err(netdev
, "tx_timeout recovery unsuccessful\n");
390 i40e_service_event_schedule(pf
);
391 pf
->tx_timeout_recovery_level
++;
395 * i40e_get_vsi_stats_struct - Get System Network Statistics
396 * @vsi: the VSI we care about
398 * Returns the address of the device statistics structure.
399 * The statistics are actually updated from the service task.
401 struct rtnl_link_stats64
*i40e_get_vsi_stats_struct(struct i40e_vsi
*vsi
)
403 return &vsi
->net_stats
;
407 * i40e_get_netdev_stats_struct - Get statistics for netdev interface
408 * @netdev: network interface device structure
410 * Returns the address of the device statistics structure.
411 * The statistics are actually updated from the service task.
414 struct rtnl_link_stats64
*i40e_get_netdev_stats_struct(
415 struct net_device
*netdev
,
416 struct rtnl_link_stats64
*stats
)
418 static struct rtnl_link_stats64
*i40e_get_netdev_stats_struct(
419 struct net_device
*netdev
,
420 struct rtnl_link_stats64
*stats
)
423 struct i40e_netdev_priv
*np
= netdev_priv(netdev
);
424 struct i40e_ring
*tx_ring
, *rx_ring
;
425 struct i40e_vsi
*vsi
= np
->vsi
;
426 struct rtnl_link_stats64
*vsi_stats
= i40e_get_vsi_stats_struct(vsi
);
429 if (test_bit(__I40E_DOWN
, &vsi
->state
))
436 for (i
= 0; i
< vsi
->num_queue_pairs
; i
++) {
440 tx_ring
= ACCESS_ONCE(vsi
->tx_rings
[i
]);
445 start
= u64_stats_fetch_begin_irq(&tx_ring
->syncp
);
446 packets
= tx_ring
->stats
.packets
;
447 bytes
= tx_ring
->stats
.bytes
;
448 } while (u64_stats_fetch_retry_irq(&tx_ring
->syncp
, start
));
450 stats
->tx_packets
+= packets
;
451 stats
->tx_bytes
+= bytes
;
452 rx_ring
= &tx_ring
[1];
455 start
= u64_stats_fetch_begin_irq(&rx_ring
->syncp
);
456 packets
= rx_ring
->stats
.packets
;
457 bytes
= rx_ring
->stats
.bytes
;
458 } while (u64_stats_fetch_retry_irq(&rx_ring
->syncp
, start
));
460 stats
->rx_packets
+= packets
;
461 stats
->rx_bytes
+= bytes
;
465 /* following stats updated by i40e_watchdog_subtask() */
466 stats
->multicast
= vsi_stats
->multicast
;
467 stats
->tx_errors
= vsi_stats
->tx_errors
;
468 stats
->tx_dropped
= vsi_stats
->tx_dropped
;
469 stats
->rx_errors
= vsi_stats
->rx_errors
;
470 stats
->rx_dropped
= vsi_stats
->rx_dropped
;
471 stats
->rx_crc_errors
= vsi_stats
->rx_crc_errors
;
472 stats
->rx_length_errors
= vsi_stats
->rx_length_errors
;
478 * i40e_vsi_reset_stats - Resets all stats of the given vsi
479 * @vsi: the VSI to have its stats reset
481 void i40e_vsi_reset_stats(struct i40e_vsi
*vsi
)
483 struct rtnl_link_stats64
*ns
;
489 ns
= i40e_get_vsi_stats_struct(vsi
);
490 memset(ns
, 0, sizeof(*ns
));
491 memset(&vsi
->net_stats_offsets
, 0, sizeof(vsi
->net_stats_offsets
));
492 memset(&vsi
->eth_stats
, 0, sizeof(vsi
->eth_stats
));
493 memset(&vsi
->eth_stats_offsets
, 0, sizeof(vsi
->eth_stats_offsets
));
494 if (vsi
->rx_rings
&& vsi
->rx_rings
[0]) {
495 for (i
= 0; i
< vsi
->num_queue_pairs
; i
++) {
496 memset(&vsi
->rx_rings
[i
]->stats
, 0,
497 sizeof(vsi
->rx_rings
[i
]->stats
));
498 memset(&vsi
->rx_rings
[i
]->rx_stats
, 0,
499 sizeof(vsi
->rx_rings
[i
]->rx_stats
));
500 memset(&vsi
->tx_rings
[i
]->stats
, 0,
501 sizeof(vsi
->tx_rings
[i
]->stats
));
502 memset(&vsi
->tx_rings
[i
]->tx_stats
, 0,
503 sizeof(vsi
->tx_rings
[i
]->tx_stats
));
506 vsi
->stat_offsets_loaded
= false;
510 * i40e_pf_reset_stats - Reset all of the stats for the given PF
511 * @pf: the PF to be reset
513 void i40e_pf_reset_stats(struct i40e_pf
*pf
)
517 memset(&pf
->stats
, 0, sizeof(pf
->stats
));
518 memset(&pf
->stats_offsets
, 0, sizeof(pf
->stats_offsets
));
519 pf
->stat_offsets_loaded
= false;
521 for (i
= 0; i
< I40E_MAX_VEB
; i
++) {
523 memset(&pf
->veb
[i
]->stats
, 0,
524 sizeof(pf
->veb
[i
]->stats
));
525 memset(&pf
->veb
[i
]->stats_offsets
, 0,
526 sizeof(pf
->veb
[i
]->stats_offsets
));
527 pf
->veb
[i
]->stat_offsets_loaded
= false;
530 pf
->hw_csum_rx_error
= 0;
534 * i40e_stat_update48 - read and update a 48 bit stat from the chip
535 * @hw: ptr to the hardware info
536 * @hireg: the high 32 bit reg to read
537 * @loreg: the low 32 bit reg to read
538 * @offset_loaded: has the initial offset been loaded yet
539 * @offset: ptr to current offset value
540 * @stat: ptr to the stat
542 * Since the device stats are not reset at PFReset, they likely will not
543 * be zeroed when the driver starts. We'll save the first values read
544 * and use them as offsets to be subtracted from the raw values in order
545 * to report stats that count from zero. In the process, we also manage
546 * the potential roll-over.
548 static void i40e_stat_update48(struct i40e_hw
*hw
, u32 hireg
, u32 loreg
,
549 bool offset_loaded
, u64
*offset
, u64
*stat
)
553 if (hw
->device_id
== I40E_DEV_ID_QEMU
) {
554 new_data
= rd32(hw
, loreg
);
555 new_data
|= ((u64
)(rd32(hw
, hireg
) & 0xFFFF)) << 32;
557 new_data
= rd64(hw
, loreg
);
561 if (likely(new_data
>= *offset
))
562 *stat
= new_data
- *offset
;
564 *stat
= (new_data
+ BIT_ULL(48)) - *offset
;
565 *stat
&= 0xFFFFFFFFFFFFULL
;
569 * i40e_stat_update32 - read and update a 32 bit stat from the chip
570 * @hw: ptr to the hardware info
571 * @reg: the hw reg to read
572 * @offset_loaded: has the initial offset been loaded yet
573 * @offset: ptr to current offset value
574 * @stat: ptr to the stat
576 static void i40e_stat_update32(struct i40e_hw
*hw
, u32 reg
,
577 bool offset_loaded
, u64
*offset
, u64
*stat
)
581 new_data
= rd32(hw
, reg
);
584 if (likely(new_data
>= *offset
))
585 *stat
= (u32
)(new_data
- *offset
);
587 *stat
= (u32
)((new_data
+ BIT_ULL(32)) - *offset
);
591 * i40e_update_eth_stats - Update VSI-specific ethernet statistics counters.
592 * @vsi: the VSI to be updated
594 void i40e_update_eth_stats(struct i40e_vsi
*vsi
)
596 int stat_idx
= le16_to_cpu(vsi
->info
.stat_counter_idx
);
597 struct i40e_pf
*pf
= vsi
->back
;
598 struct i40e_hw
*hw
= &pf
->hw
;
599 struct i40e_eth_stats
*oes
;
600 struct i40e_eth_stats
*es
; /* device's eth stats */
602 es
= &vsi
->eth_stats
;
603 oes
= &vsi
->eth_stats_offsets
;
605 /* Gather up the stats that the hw collects */
606 i40e_stat_update32(hw
, I40E_GLV_TEPC(stat_idx
),
607 vsi
->stat_offsets_loaded
,
608 &oes
->tx_errors
, &es
->tx_errors
);
609 i40e_stat_update32(hw
, I40E_GLV_RDPC(stat_idx
),
610 vsi
->stat_offsets_loaded
,
611 &oes
->rx_discards
, &es
->rx_discards
);
612 i40e_stat_update32(hw
, I40E_GLV_RUPP(stat_idx
),
613 vsi
->stat_offsets_loaded
,
614 &oes
->rx_unknown_protocol
, &es
->rx_unknown_protocol
);
615 i40e_stat_update32(hw
, I40E_GLV_TEPC(stat_idx
),
616 vsi
->stat_offsets_loaded
,
617 &oes
->tx_errors
, &es
->tx_errors
);
619 i40e_stat_update48(hw
, I40E_GLV_GORCH(stat_idx
),
620 I40E_GLV_GORCL(stat_idx
),
621 vsi
->stat_offsets_loaded
,
622 &oes
->rx_bytes
, &es
->rx_bytes
);
623 i40e_stat_update48(hw
, I40E_GLV_UPRCH(stat_idx
),
624 I40E_GLV_UPRCL(stat_idx
),
625 vsi
->stat_offsets_loaded
,
626 &oes
->rx_unicast
, &es
->rx_unicast
);
627 i40e_stat_update48(hw
, I40E_GLV_MPRCH(stat_idx
),
628 I40E_GLV_MPRCL(stat_idx
),
629 vsi
->stat_offsets_loaded
,
630 &oes
->rx_multicast
, &es
->rx_multicast
);
631 i40e_stat_update48(hw
, I40E_GLV_BPRCH(stat_idx
),
632 I40E_GLV_BPRCL(stat_idx
),
633 vsi
->stat_offsets_loaded
,
634 &oes
->rx_broadcast
, &es
->rx_broadcast
);
636 i40e_stat_update48(hw
, I40E_GLV_GOTCH(stat_idx
),
637 I40E_GLV_GOTCL(stat_idx
),
638 vsi
->stat_offsets_loaded
,
639 &oes
->tx_bytes
, &es
->tx_bytes
);
640 i40e_stat_update48(hw
, I40E_GLV_UPTCH(stat_idx
),
641 I40E_GLV_UPTCL(stat_idx
),
642 vsi
->stat_offsets_loaded
,
643 &oes
->tx_unicast
, &es
->tx_unicast
);
644 i40e_stat_update48(hw
, I40E_GLV_MPTCH(stat_idx
),
645 I40E_GLV_MPTCL(stat_idx
),
646 vsi
->stat_offsets_loaded
,
647 &oes
->tx_multicast
, &es
->tx_multicast
);
648 i40e_stat_update48(hw
, I40E_GLV_BPTCH(stat_idx
),
649 I40E_GLV_BPTCL(stat_idx
),
650 vsi
->stat_offsets_loaded
,
651 &oes
->tx_broadcast
, &es
->tx_broadcast
);
652 vsi
->stat_offsets_loaded
= true;
656 * i40e_update_veb_stats - Update Switch component statistics
657 * @veb: the VEB being updated
659 static void i40e_update_veb_stats(struct i40e_veb
*veb
)
661 struct i40e_pf
*pf
= veb
->pf
;
662 struct i40e_hw
*hw
= &pf
->hw
;
663 struct i40e_eth_stats
*oes
;
664 struct i40e_eth_stats
*es
; /* device's eth stats */
665 struct i40e_veb_tc_stats
*veb_oes
;
666 struct i40e_veb_tc_stats
*veb_es
;
669 idx
= veb
->stats_idx
;
671 oes
= &veb
->stats_offsets
;
672 veb_es
= &veb
->tc_stats
;
673 veb_oes
= &veb
->tc_stats_offsets
;
675 /* Gather up the stats that the hw collects */
676 i40e_stat_update32(hw
, I40E_GLSW_TDPC(idx
),
677 veb
->stat_offsets_loaded
,
678 &oes
->tx_discards
, &es
->tx_discards
);
679 if (hw
->revision_id
> 0)
680 i40e_stat_update32(hw
, I40E_GLSW_RUPP(idx
),
681 veb
->stat_offsets_loaded
,
682 &oes
->rx_unknown_protocol
,
683 &es
->rx_unknown_protocol
);
684 i40e_stat_update48(hw
, I40E_GLSW_GORCH(idx
), I40E_GLSW_GORCL(idx
),
685 veb
->stat_offsets_loaded
,
686 &oes
->rx_bytes
, &es
->rx_bytes
);
687 i40e_stat_update48(hw
, I40E_GLSW_UPRCH(idx
), I40E_GLSW_UPRCL(idx
),
688 veb
->stat_offsets_loaded
,
689 &oes
->rx_unicast
, &es
->rx_unicast
);
690 i40e_stat_update48(hw
, I40E_GLSW_MPRCH(idx
), I40E_GLSW_MPRCL(idx
),
691 veb
->stat_offsets_loaded
,
692 &oes
->rx_multicast
, &es
->rx_multicast
);
693 i40e_stat_update48(hw
, I40E_GLSW_BPRCH(idx
), I40E_GLSW_BPRCL(idx
),
694 veb
->stat_offsets_loaded
,
695 &oes
->rx_broadcast
, &es
->rx_broadcast
);
697 i40e_stat_update48(hw
, I40E_GLSW_GOTCH(idx
), I40E_GLSW_GOTCL(idx
),
698 veb
->stat_offsets_loaded
,
699 &oes
->tx_bytes
, &es
->tx_bytes
);
700 i40e_stat_update48(hw
, I40E_GLSW_UPTCH(idx
), I40E_GLSW_UPTCL(idx
),
701 veb
->stat_offsets_loaded
,
702 &oes
->tx_unicast
, &es
->tx_unicast
);
703 i40e_stat_update48(hw
, I40E_GLSW_MPTCH(idx
), I40E_GLSW_MPTCL(idx
),
704 veb
->stat_offsets_loaded
,
705 &oes
->tx_multicast
, &es
->tx_multicast
);
706 i40e_stat_update48(hw
, I40E_GLSW_BPTCH(idx
), I40E_GLSW_BPTCL(idx
),
707 veb
->stat_offsets_loaded
,
708 &oes
->tx_broadcast
, &es
->tx_broadcast
);
709 for (i
= 0; i
< I40E_MAX_TRAFFIC_CLASS
; i
++) {
710 i40e_stat_update48(hw
, I40E_GLVEBTC_RPCH(i
, idx
),
711 I40E_GLVEBTC_RPCL(i
, idx
),
712 veb
->stat_offsets_loaded
,
713 &veb_oes
->tc_rx_packets
[i
],
714 &veb_es
->tc_rx_packets
[i
]);
715 i40e_stat_update48(hw
, I40E_GLVEBTC_RBCH(i
, idx
),
716 I40E_GLVEBTC_RBCL(i
, idx
),
717 veb
->stat_offsets_loaded
,
718 &veb_oes
->tc_rx_bytes
[i
],
719 &veb_es
->tc_rx_bytes
[i
]);
720 i40e_stat_update48(hw
, I40E_GLVEBTC_TPCH(i
, idx
),
721 I40E_GLVEBTC_TPCL(i
, idx
),
722 veb
->stat_offsets_loaded
,
723 &veb_oes
->tc_tx_packets
[i
],
724 &veb_es
->tc_tx_packets
[i
]);
725 i40e_stat_update48(hw
, I40E_GLVEBTC_TBCH(i
, idx
),
726 I40E_GLVEBTC_TBCL(i
, idx
),
727 veb
->stat_offsets_loaded
,
728 &veb_oes
->tc_tx_bytes
[i
],
729 &veb_es
->tc_tx_bytes
[i
]);
731 veb
->stat_offsets_loaded
= true;
736 * i40e_update_fcoe_stats - Update FCoE-specific ethernet statistics counters.
737 * @vsi: the VSI that is capable of doing FCoE
739 static void i40e_update_fcoe_stats(struct i40e_vsi
*vsi
)
741 struct i40e_pf
*pf
= vsi
->back
;
742 struct i40e_hw
*hw
= &pf
->hw
;
743 struct i40e_fcoe_stats
*ofs
;
744 struct i40e_fcoe_stats
*fs
; /* device's eth stats */
747 if (vsi
->type
!= I40E_VSI_FCOE
)
750 idx
= hw
->pf_id
+ I40E_FCOE_PF_STAT_OFFSET
;
751 fs
= &vsi
->fcoe_stats
;
752 ofs
= &vsi
->fcoe_stats_offsets
;
754 i40e_stat_update32(hw
, I40E_GL_FCOEPRC(idx
),
755 vsi
->fcoe_stat_offsets_loaded
,
756 &ofs
->rx_fcoe_packets
, &fs
->rx_fcoe_packets
);
757 i40e_stat_update48(hw
, I40E_GL_FCOEDWRCH(idx
), I40E_GL_FCOEDWRCL(idx
),
758 vsi
->fcoe_stat_offsets_loaded
,
759 &ofs
->rx_fcoe_dwords
, &fs
->rx_fcoe_dwords
);
760 i40e_stat_update32(hw
, I40E_GL_FCOERPDC(idx
),
761 vsi
->fcoe_stat_offsets_loaded
,
762 &ofs
->rx_fcoe_dropped
, &fs
->rx_fcoe_dropped
);
763 i40e_stat_update32(hw
, I40E_GL_FCOEPTC(idx
),
764 vsi
->fcoe_stat_offsets_loaded
,
765 &ofs
->tx_fcoe_packets
, &fs
->tx_fcoe_packets
);
766 i40e_stat_update48(hw
, I40E_GL_FCOEDWTCH(idx
), I40E_GL_FCOEDWTCL(idx
),
767 vsi
->fcoe_stat_offsets_loaded
,
768 &ofs
->tx_fcoe_dwords
, &fs
->tx_fcoe_dwords
);
769 i40e_stat_update32(hw
, I40E_GL_FCOECRC(idx
),
770 vsi
->fcoe_stat_offsets_loaded
,
771 &ofs
->fcoe_bad_fccrc
, &fs
->fcoe_bad_fccrc
);
772 i40e_stat_update32(hw
, I40E_GL_FCOELAST(idx
),
773 vsi
->fcoe_stat_offsets_loaded
,
774 &ofs
->fcoe_last_error
, &fs
->fcoe_last_error
);
775 i40e_stat_update32(hw
, I40E_GL_FCOEDDPC(idx
),
776 vsi
->fcoe_stat_offsets_loaded
,
777 &ofs
->fcoe_ddp_count
, &fs
->fcoe_ddp_count
);
779 vsi
->fcoe_stat_offsets_loaded
= true;
784 * i40e_update_vsi_stats - Update the vsi statistics counters.
785 * @vsi: the VSI to be updated
787 * There are a few instances where we store the same stat in a
788 * couple of different structs. This is partly because we have
789 * the netdev stats that need to be filled out, which is slightly
790 * different from the "eth_stats" defined by the chip and used in
791 * VF communications. We sort it out here.
793 static void i40e_update_vsi_stats(struct i40e_vsi
*vsi
)
795 struct i40e_pf
*pf
= vsi
->back
;
796 struct rtnl_link_stats64
*ons
;
797 struct rtnl_link_stats64
*ns
; /* netdev stats */
798 struct i40e_eth_stats
*oes
;
799 struct i40e_eth_stats
*es
; /* device's eth stats */
800 u32 tx_restart
, tx_busy
;
801 u64 tx_lost_interrupt
;
812 if (test_bit(__I40E_DOWN
, &vsi
->state
) ||
813 test_bit(__I40E_CONFIG_BUSY
, &pf
->state
))
816 ns
= i40e_get_vsi_stats_struct(vsi
);
817 ons
= &vsi
->net_stats_offsets
;
818 es
= &vsi
->eth_stats
;
819 oes
= &vsi
->eth_stats_offsets
;
821 /* Gather up the netdev and vsi stats that the driver collects
822 * on the fly during packet processing
826 tx_restart
= tx_busy
= tx_linearize
= tx_force_wb
= 0;
827 tx_lost_interrupt
= 0;
831 for (q
= 0; q
< vsi
->num_queue_pairs
; q
++) {
833 p
= ACCESS_ONCE(vsi
->tx_rings
[q
]);
836 start
= u64_stats_fetch_begin_irq(&p
->syncp
);
837 packets
= p
->stats
.packets
;
838 bytes
= p
->stats
.bytes
;
839 } while (u64_stats_fetch_retry_irq(&p
->syncp
, start
));
842 tx_restart
+= p
->tx_stats
.restart_queue
;
843 tx_busy
+= p
->tx_stats
.tx_busy
;
844 tx_linearize
+= p
->tx_stats
.tx_linearize
;
845 tx_force_wb
+= p
->tx_stats
.tx_force_wb
;
846 tx_lost_interrupt
+= p
->tx_stats
.tx_lost_interrupt
;
848 /* Rx queue is part of the same block as Tx queue */
851 start
= u64_stats_fetch_begin_irq(&p
->syncp
);
852 packets
= p
->stats
.packets
;
853 bytes
= p
->stats
.bytes
;
854 } while (u64_stats_fetch_retry_irq(&p
->syncp
, start
));
857 rx_buf
+= p
->rx_stats
.alloc_buff_failed
;
858 rx_page
+= p
->rx_stats
.alloc_page_failed
;
861 vsi
->tx_restart
= tx_restart
;
862 vsi
->tx_busy
= tx_busy
;
863 vsi
->tx_linearize
= tx_linearize
;
864 vsi
->tx_force_wb
= tx_force_wb
;
865 vsi
->tx_lost_interrupt
= tx_lost_interrupt
;
866 vsi
->rx_page_failed
= rx_page
;
867 vsi
->rx_buf_failed
= rx_buf
;
869 ns
->rx_packets
= rx_p
;
871 ns
->tx_packets
= tx_p
;
874 /* update netdev stats from eth stats */
875 i40e_update_eth_stats(vsi
);
876 ons
->tx_errors
= oes
->tx_errors
;
877 ns
->tx_errors
= es
->tx_errors
;
878 ons
->multicast
= oes
->rx_multicast
;
879 ns
->multicast
= es
->rx_multicast
;
880 ons
->rx_dropped
= oes
->rx_discards
;
881 ns
->rx_dropped
= es
->rx_discards
;
882 ons
->tx_dropped
= oes
->tx_discards
;
883 ns
->tx_dropped
= es
->tx_discards
;
885 /* pull in a couple PF stats if this is the main vsi */
886 if (vsi
== pf
->vsi
[pf
->lan_vsi
]) {
887 ns
->rx_crc_errors
= pf
->stats
.crc_errors
;
888 ns
->rx_errors
= pf
->stats
.crc_errors
+ pf
->stats
.illegal_bytes
;
889 ns
->rx_length_errors
= pf
->stats
.rx_length_errors
;
894 * i40e_update_pf_stats - Update the PF statistics counters.
895 * @pf: the PF to be updated
897 static void i40e_update_pf_stats(struct i40e_pf
*pf
)
899 struct i40e_hw_port_stats
*osd
= &pf
->stats_offsets
;
900 struct i40e_hw_port_stats
*nsd
= &pf
->stats
;
901 struct i40e_hw
*hw
= &pf
->hw
;
905 i40e_stat_update48(hw
, I40E_GLPRT_GORCH(hw
->port
),
906 I40E_GLPRT_GORCL(hw
->port
),
907 pf
->stat_offsets_loaded
,
908 &osd
->eth
.rx_bytes
, &nsd
->eth
.rx_bytes
);
909 i40e_stat_update48(hw
, I40E_GLPRT_GOTCH(hw
->port
),
910 I40E_GLPRT_GOTCL(hw
->port
),
911 pf
->stat_offsets_loaded
,
912 &osd
->eth
.tx_bytes
, &nsd
->eth
.tx_bytes
);
913 i40e_stat_update32(hw
, I40E_GLPRT_RDPC(hw
->port
),
914 pf
->stat_offsets_loaded
,
915 &osd
->eth
.rx_discards
,
916 &nsd
->eth
.rx_discards
);
917 i40e_stat_update48(hw
, I40E_GLPRT_UPRCH(hw
->port
),
918 I40E_GLPRT_UPRCL(hw
->port
),
919 pf
->stat_offsets_loaded
,
920 &osd
->eth
.rx_unicast
,
921 &nsd
->eth
.rx_unicast
);
922 i40e_stat_update48(hw
, I40E_GLPRT_MPRCH(hw
->port
),
923 I40E_GLPRT_MPRCL(hw
->port
),
924 pf
->stat_offsets_loaded
,
925 &osd
->eth
.rx_multicast
,
926 &nsd
->eth
.rx_multicast
);
927 i40e_stat_update48(hw
, I40E_GLPRT_BPRCH(hw
->port
),
928 I40E_GLPRT_BPRCL(hw
->port
),
929 pf
->stat_offsets_loaded
,
930 &osd
->eth
.rx_broadcast
,
931 &nsd
->eth
.rx_broadcast
);
932 i40e_stat_update48(hw
, I40E_GLPRT_UPTCH(hw
->port
),
933 I40E_GLPRT_UPTCL(hw
->port
),
934 pf
->stat_offsets_loaded
,
935 &osd
->eth
.tx_unicast
,
936 &nsd
->eth
.tx_unicast
);
937 i40e_stat_update48(hw
, I40E_GLPRT_MPTCH(hw
->port
),
938 I40E_GLPRT_MPTCL(hw
->port
),
939 pf
->stat_offsets_loaded
,
940 &osd
->eth
.tx_multicast
,
941 &nsd
->eth
.tx_multicast
);
942 i40e_stat_update48(hw
, I40E_GLPRT_BPTCH(hw
->port
),
943 I40E_GLPRT_BPTCL(hw
->port
),
944 pf
->stat_offsets_loaded
,
945 &osd
->eth
.tx_broadcast
,
946 &nsd
->eth
.tx_broadcast
);
948 i40e_stat_update32(hw
, I40E_GLPRT_TDOLD(hw
->port
),
949 pf
->stat_offsets_loaded
,
950 &osd
->tx_dropped_link_down
,
951 &nsd
->tx_dropped_link_down
);
953 i40e_stat_update32(hw
, I40E_GLPRT_CRCERRS(hw
->port
),
954 pf
->stat_offsets_loaded
,
955 &osd
->crc_errors
, &nsd
->crc_errors
);
957 i40e_stat_update32(hw
, I40E_GLPRT_ILLERRC(hw
->port
),
958 pf
->stat_offsets_loaded
,
959 &osd
->illegal_bytes
, &nsd
->illegal_bytes
);
961 i40e_stat_update32(hw
, I40E_GLPRT_MLFC(hw
->port
),
962 pf
->stat_offsets_loaded
,
963 &osd
->mac_local_faults
,
964 &nsd
->mac_local_faults
);
965 i40e_stat_update32(hw
, I40E_GLPRT_MRFC(hw
->port
),
966 pf
->stat_offsets_loaded
,
967 &osd
->mac_remote_faults
,
968 &nsd
->mac_remote_faults
);
970 i40e_stat_update32(hw
, I40E_GLPRT_RLEC(hw
->port
),
971 pf
->stat_offsets_loaded
,
972 &osd
->rx_length_errors
,
973 &nsd
->rx_length_errors
);
975 i40e_stat_update32(hw
, I40E_GLPRT_LXONRXC(hw
->port
),
976 pf
->stat_offsets_loaded
,
977 &osd
->link_xon_rx
, &nsd
->link_xon_rx
);
978 i40e_stat_update32(hw
, I40E_GLPRT_LXONTXC(hw
->port
),
979 pf
->stat_offsets_loaded
,
980 &osd
->link_xon_tx
, &nsd
->link_xon_tx
);
981 i40e_stat_update32(hw
, I40E_GLPRT_LXOFFRXC(hw
->port
),
982 pf
->stat_offsets_loaded
,
983 &osd
->link_xoff_rx
, &nsd
->link_xoff_rx
);
984 i40e_stat_update32(hw
, I40E_GLPRT_LXOFFTXC(hw
->port
),
985 pf
->stat_offsets_loaded
,
986 &osd
->link_xoff_tx
, &nsd
->link_xoff_tx
);
988 for (i
= 0; i
< 8; i
++) {
989 i40e_stat_update32(hw
, I40E_GLPRT_PXOFFRXC(hw
->port
, i
),
990 pf
->stat_offsets_loaded
,
991 &osd
->priority_xoff_rx
[i
],
992 &nsd
->priority_xoff_rx
[i
]);
993 i40e_stat_update32(hw
, I40E_GLPRT_PXONRXC(hw
->port
, i
),
994 pf
->stat_offsets_loaded
,
995 &osd
->priority_xon_rx
[i
],
996 &nsd
->priority_xon_rx
[i
]);
997 i40e_stat_update32(hw
, I40E_GLPRT_PXONTXC(hw
->port
, i
),
998 pf
->stat_offsets_loaded
,
999 &osd
->priority_xon_tx
[i
],
1000 &nsd
->priority_xon_tx
[i
]);
1001 i40e_stat_update32(hw
, I40E_GLPRT_PXOFFTXC(hw
->port
, i
),
1002 pf
->stat_offsets_loaded
,
1003 &osd
->priority_xoff_tx
[i
],
1004 &nsd
->priority_xoff_tx
[i
]);
1005 i40e_stat_update32(hw
,
1006 I40E_GLPRT_RXON2OFFCNT(hw
->port
, i
),
1007 pf
->stat_offsets_loaded
,
1008 &osd
->priority_xon_2_xoff
[i
],
1009 &nsd
->priority_xon_2_xoff
[i
]);
1012 i40e_stat_update48(hw
, I40E_GLPRT_PRC64H(hw
->port
),
1013 I40E_GLPRT_PRC64L(hw
->port
),
1014 pf
->stat_offsets_loaded
,
1015 &osd
->rx_size_64
, &nsd
->rx_size_64
);
1016 i40e_stat_update48(hw
, I40E_GLPRT_PRC127H(hw
->port
),
1017 I40E_GLPRT_PRC127L(hw
->port
),
1018 pf
->stat_offsets_loaded
,
1019 &osd
->rx_size_127
, &nsd
->rx_size_127
);
1020 i40e_stat_update48(hw
, I40E_GLPRT_PRC255H(hw
->port
),
1021 I40E_GLPRT_PRC255L(hw
->port
),
1022 pf
->stat_offsets_loaded
,
1023 &osd
->rx_size_255
, &nsd
->rx_size_255
);
1024 i40e_stat_update48(hw
, I40E_GLPRT_PRC511H(hw
->port
),
1025 I40E_GLPRT_PRC511L(hw
->port
),
1026 pf
->stat_offsets_loaded
,
1027 &osd
->rx_size_511
, &nsd
->rx_size_511
);
1028 i40e_stat_update48(hw
, I40E_GLPRT_PRC1023H(hw
->port
),
1029 I40E_GLPRT_PRC1023L(hw
->port
),
1030 pf
->stat_offsets_loaded
,
1031 &osd
->rx_size_1023
, &nsd
->rx_size_1023
);
1032 i40e_stat_update48(hw
, I40E_GLPRT_PRC1522H(hw
->port
),
1033 I40E_GLPRT_PRC1522L(hw
->port
),
1034 pf
->stat_offsets_loaded
,
1035 &osd
->rx_size_1522
, &nsd
->rx_size_1522
);
1036 i40e_stat_update48(hw
, I40E_GLPRT_PRC9522H(hw
->port
),
1037 I40E_GLPRT_PRC9522L(hw
->port
),
1038 pf
->stat_offsets_loaded
,
1039 &osd
->rx_size_big
, &nsd
->rx_size_big
);
1041 i40e_stat_update48(hw
, I40E_GLPRT_PTC64H(hw
->port
),
1042 I40E_GLPRT_PTC64L(hw
->port
),
1043 pf
->stat_offsets_loaded
,
1044 &osd
->tx_size_64
, &nsd
->tx_size_64
);
1045 i40e_stat_update48(hw
, I40E_GLPRT_PTC127H(hw
->port
),
1046 I40E_GLPRT_PTC127L(hw
->port
),
1047 pf
->stat_offsets_loaded
,
1048 &osd
->tx_size_127
, &nsd
->tx_size_127
);
1049 i40e_stat_update48(hw
, I40E_GLPRT_PTC255H(hw
->port
),
1050 I40E_GLPRT_PTC255L(hw
->port
),
1051 pf
->stat_offsets_loaded
,
1052 &osd
->tx_size_255
, &nsd
->tx_size_255
);
1053 i40e_stat_update48(hw
, I40E_GLPRT_PTC511H(hw
->port
),
1054 I40E_GLPRT_PTC511L(hw
->port
),
1055 pf
->stat_offsets_loaded
,
1056 &osd
->tx_size_511
, &nsd
->tx_size_511
);
1057 i40e_stat_update48(hw
, I40E_GLPRT_PTC1023H(hw
->port
),
1058 I40E_GLPRT_PTC1023L(hw
->port
),
1059 pf
->stat_offsets_loaded
,
1060 &osd
->tx_size_1023
, &nsd
->tx_size_1023
);
1061 i40e_stat_update48(hw
, I40E_GLPRT_PTC1522H(hw
->port
),
1062 I40E_GLPRT_PTC1522L(hw
->port
),
1063 pf
->stat_offsets_loaded
,
1064 &osd
->tx_size_1522
, &nsd
->tx_size_1522
);
1065 i40e_stat_update48(hw
, I40E_GLPRT_PTC9522H(hw
->port
),
1066 I40E_GLPRT_PTC9522L(hw
->port
),
1067 pf
->stat_offsets_loaded
,
1068 &osd
->tx_size_big
, &nsd
->tx_size_big
);
1070 i40e_stat_update32(hw
, I40E_GLPRT_RUC(hw
->port
),
1071 pf
->stat_offsets_loaded
,
1072 &osd
->rx_undersize
, &nsd
->rx_undersize
);
1073 i40e_stat_update32(hw
, I40E_GLPRT_RFC(hw
->port
),
1074 pf
->stat_offsets_loaded
,
1075 &osd
->rx_fragments
, &nsd
->rx_fragments
);
1076 i40e_stat_update32(hw
, I40E_GLPRT_ROC(hw
->port
),
1077 pf
->stat_offsets_loaded
,
1078 &osd
->rx_oversize
, &nsd
->rx_oversize
);
1079 i40e_stat_update32(hw
, I40E_GLPRT_RJC(hw
->port
),
1080 pf
->stat_offsets_loaded
,
1081 &osd
->rx_jabber
, &nsd
->rx_jabber
);
1084 i40e_stat_update32(hw
,
1085 I40E_GLQF_PCNT(I40E_FD_ATR_STAT_IDX(pf
->hw
.pf_id
)),
1086 pf
->stat_offsets_loaded
,
1087 &osd
->fd_atr_match
, &nsd
->fd_atr_match
);
1088 i40e_stat_update32(hw
,
1089 I40E_GLQF_PCNT(I40E_FD_SB_STAT_IDX(pf
->hw
.pf_id
)),
1090 pf
->stat_offsets_loaded
,
1091 &osd
->fd_sb_match
, &nsd
->fd_sb_match
);
1092 i40e_stat_update32(hw
,
1093 I40E_GLQF_PCNT(I40E_FD_ATR_TUNNEL_STAT_IDX(pf
->hw
.pf_id
)),
1094 pf
->stat_offsets_loaded
,
1095 &osd
->fd_atr_tunnel_match
, &nsd
->fd_atr_tunnel_match
);
1097 val
= rd32(hw
, I40E_PRTPM_EEE_STAT
);
1098 nsd
->tx_lpi_status
=
1099 (val
& I40E_PRTPM_EEE_STAT_TX_LPI_STATUS_MASK
) >>
1100 I40E_PRTPM_EEE_STAT_TX_LPI_STATUS_SHIFT
;
1101 nsd
->rx_lpi_status
=
1102 (val
& I40E_PRTPM_EEE_STAT_RX_LPI_STATUS_MASK
) >>
1103 I40E_PRTPM_EEE_STAT_RX_LPI_STATUS_SHIFT
;
1104 i40e_stat_update32(hw
, I40E_PRTPM_TLPIC
,
1105 pf
->stat_offsets_loaded
,
1106 &osd
->tx_lpi_count
, &nsd
->tx_lpi_count
);
1107 i40e_stat_update32(hw
, I40E_PRTPM_RLPIC
,
1108 pf
->stat_offsets_loaded
,
1109 &osd
->rx_lpi_count
, &nsd
->rx_lpi_count
);
1111 if (pf
->flags
& I40E_FLAG_FD_SB_ENABLED
&&
1112 !(pf
->auto_disable_flags
& I40E_FLAG_FD_SB_ENABLED
))
1113 nsd
->fd_sb_status
= true;
1115 nsd
->fd_sb_status
= false;
1117 if (pf
->flags
& I40E_FLAG_FD_ATR_ENABLED
&&
1118 !(pf
->auto_disable_flags
& I40E_FLAG_FD_ATR_ENABLED
))
1119 nsd
->fd_atr_status
= true;
1121 nsd
->fd_atr_status
= false;
1123 pf
->stat_offsets_loaded
= true;
1127 * i40e_update_stats - Update the various statistics counters.
1128 * @vsi: the VSI to be updated
1130 * Update the various stats for this VSI and its related entities.
1132 void i40e_update_stats(struct i40e_vsi
*vsi
)
1134 struct i40e_pf
*pf
= vsi
->back
;
1136 if (vsi
== pf
->vsi
[pf
->lan_vsi
])
1137 i40e_update_pf_stats(pf
);
1139 i40e_update_vsi_stats(vsi
);
1141 i40e_update_fcoe_stats(vsi
);
1146 * i40e_find_filter - Search VSI filter list for specific mac/vlan filter
1147 * @vsi: the VSI to be searched
1148 * @macaddr: the MAC address
1150 * @is_vf: make sure its a VF filter, else doesn't matter
1151 * @is_netdev: make sure its a netdev filter, else doesn't matter
1153 * Returns ptr to the filter object or NULL
1155 static struct i40e_mac_filter
*i40e_find_filter(struct i40e_vsi
*vsi
,
1156 u8
*macaddr
, s16 vlan
,
1157 bool is_vf
, bool is_netdev
)
1159 struct i40e_mac_filter
*f
;
1161 if (!vsi
|| !macaddr
)
1164 list_for_each_entry(f
, &vsi
->mac_filter_list
, list
) {
1165 if ((ether_addr_equal(macaddr
, f
->macaddr
)) &&
1166 (vlan
== f
->vlan
) &&
1167 (!is_vf
|| f
->is_vf
) &&
1168 (!is_netdev
|| f
->is_netdev
))
1175 * i40e_find_mac - Find a mac addr in the macvlan filters list
1176 * @vsi: the VSI to be searched
1177 * @macaddr: the MAC address we are searching for
1178 * @is_vf: make sure its a VF filter, else doesn't matter
1179 * @is_netdev: make sure its a netdev filter, else doesn't matter
1181 * Returns the first filter with the provided MAC address or NULL if
1182 * MAC address was not found
1184 struct i40e_mac_filter
*i40e_find_mac(struct i40e_vsi
*vsi
, u8
*macaddr
,
1185 bool is_vf
, bool is_netdev
)
1187 struct i40e_mac_filter
*f
;
1189 if (!vsi
|| !macaddr
)
1192 list_for_each_entry(f
, &vsi
->mac_filter_list
, list
) {
1193 if ((ether_addr_equal(macaddr
, f
->macaddr
)) &&
1194 (!is_vf
|| f
->is_vf
) &&
1195 (!is_netdev
|| f
->is_netdev
))
1202 * i40e_is_vsi_in_vlan - Check if VSI is in vlan mode
1203 * @vsi: the VSI to be searched
1205 * Returns true if VSI is in vlan mode or false otherwise
1207 bool i40e_is_vsi_in_vlan(struct i40e_vsi
*vsi
)
1209 struct i40e_mac_filter
*f
;
1211 /* Only -1 for all the filters denotes not in vlan mode
1212 * so we have to go through all the list in order to make sure
1214 list_for_each_entry(f
, &vsi
->mac_filter_list
, list
) {
1215 if (f
->vlan
>= 0 || vsi
->info
.pvid
)
1223 * i40e_put_mac_in_vlan - Make macvlan filters from macaddrs and vlans
1224 * @vsi: the VSI to be searched
1225 * @macaddr: the mac address to be filtered
1226 * @is_vf: true if it is a VF
1227 * @is_netdev: true if it is a netdev
1229 * Goes through all the macvlan filters and adds a
1230 * macvlan filter for each unique vlan that already exists
1232 * Returns first filter found on success, else NULL
1234 struct i40e_mac_filter
*i40e_put_mac_in_vlan(struct i40e_vsi
*vsi
, u8
*macaddr
,
1235 bool is_vf
, bool is_netdev
)
1237 struct i40e_mac_filter
*f
;
1239 list_for_each_entry(f
, &vsi
->mac_filter_list
, list
) {
1241 f
->vlan
= le16_to_cpu(vsi
->info
.pvid
);
1242 if (!i40e_find_filter(vsi
, macaddr
, f
->vlan
,
1243 is_vf
, is_netdev
)) {
1244 if (!i40e_add_filter(vsi
, macaddr
, f
->vlan
,
1250 return list_first_entry_or_null(&vsi
->mac_filter_list
,
1251 struct i40e_mac_filter
, list
);
1255 * i40e_del_mac_all_vlan - Remove a MAC filter from all VLANS
1256 * @vsi: the VSI to be searched
1257 * @macaddr: the mac address to be removed
1258 * @is_vf: true if it is a VF
1259 * @is_netdev: true if it is a netdev
1261 * Removes a given MAC address from a VSI, regardless of VLAN
1263 * Returns 0 for success, or error
1265 int i40e_del_mac_all_vlan(struct i40e_vsi
*vsi
, u8
*macaddr
,
1266 bool is_vf
, bool is_netdev
)
1268 struct i40e_mac_filter
*f
= NULL
;
1271 WARN(!spin_is_locked(&vsi
->mac_filter_list_lock
),
1272 "Missing mac_filter_list_lock\n");
1273 list_for_each_entry(f
, &vsi
->mac_filter_list
, list
) {
1274 if ((ether_addr_equal(macaddr
, f
->macaddr
)) &&
1275 (is_vf
== f
->is_vf
) &&
1276 (is_netdev
== f
->is_netdev
)) {
1279 if (f
->counter
== 0)
1280 f
->state
= I40E_FILTER_REMOVE
;
1284 vsi
->flags
|= I40E_VSI_FLAG_FILTER_CHANGED
;
1285 vsi
->back
->flags
|= I40E_FLAG_FILTER_SYNC
;
1292 * i40e_rm_default_mac_filter - Remove the default MAC filter set by NVM
1293 * @vsi: the PF Main VSI - inappropriate for any other VSI
1294 * @macaddr: the MAC address
1296 * Remove whatever filter the firmware set up so the driver can manage
1297 * its own filtering intelligently.
1299 static void i40e_rm_default_mac_filter(struct i40e_vsi
*vsi
, u8
*macaddr
)
1301 struct i40e_aqc_remove_macvlan_element_data element
;
1302 struct i40e_pf
*pf
= vsi
->back
;
1304 /* Only appropriate for the PF main VSI */
1305 if (vsi
->type
!= I40E_VSI_MAIN
)
1308 memset(&element
, 0, sizeof(element
));
1309 ether_addr_copy(element
.mac_addr
, macaddr
);
1310 element
.vlan_tag
= 0;
1311 /* Ignore error returns, some firmware does it this way... */
1312 element
.flags
= I40E_AQC_MACVLAN_DEL_PERFECT_MATCH
;
1313 i40e_aq_remove_macvlan(&pf
->hw
, vsi
->seid
, &element
, 1, NULL
);
1315 memset(&element
, 0, sizeof(element
));
1316 ether_addr_copy(element
.mac_addr
, macaddr
);
1317 element
.vlan_tag
= 0;
1318 /* ...and some firmware does it this way. */
1319 element
.flags
= I40E_AQC_MACVLAN_DEL_PERFECT_MATCH
|
1320 I40E_AQC_MACVLAN_ADD_IGNORE_VLAN
;
1321 i40e_aq_remove_macvlan(&pf
->hw
, vsi
->seid
, &element
, 1, NULL
);
1325 * i40e_add_filter - Add a mac/vlan filter to the VSI
1326 * @vsi: the VSI to be searched
1327 * @macaddr: the MAC address
1329 * @is_vf: make sure its a VF filter, else doesn't matter
1330 * @is_netdev: make sure its a netdev filter, else doesn't matter
1332 * Returns ptr to the filter object or NULL when no memory available.
1334 * NOTE: This function is expected to be called with mac_filter_list_lock
1337 struct i40e_mac_filter
*i40e_add_filter(struct i40e_vsi
*vsi
,
1338 u8
*macaddr
, s16 vlan
,
1339 bool is_vf
, bool is_netdev
)
1341 struct i40e_mac_filter
*f
;
1342 int changed
= false;
1344 if (!vsi
|| !macaddr
)
1347 /* Do not allow broadcast filter to be added since broadcast filter
1348 * is added as part of add VSI for any newly created VSI except
1351 if (is_broadcast_ether_addr(macaddr
))
1354 f
= i40e_find_filter(vsi
, macaddr
, vlan
, is_vf
, is_netdev
);
1356 f
= kzalloc(sizeof(*f
), GFP_ATOMIC
);
1358 goto add_filter_out
;
1360 ether_addr_copy(f
->macaddr
, macaddr
);
1362 /* If we're in overflow promisc mode, set the state directly
1363 * to failed, so we don't bother to try sending the filter
1366 if (test_bit(__I40E_FILTER_OVERFLOW_PROMISC
, &vsi
->state
))
1367 f
->state
= I40E_FILTER_FAILED
;
1369 f
->state
= I40E_FILTER_NEW
;
1371 INIT_LIST_HEAD(&f
->list
);
1372 list_add_tail(&f
->list
, &vsi
->mac_filter_list
);
1375 /* increment counter and add a new flag if needed */
1381 } else if (is_netdev
) {
1382 if (!f
->is_netdev
) {
1383 f
->is_netdev
= true;
1391 vsi
->flags
|= I40E_VSI_FLAG_FILTER_CHANGED
;
1392 vsi
->back
->flags
|= I40E_FLAG_FILTER_SYNC
;
1400 * i40e_del_filter - Remove a mac/vlan filter from the VSI
1401 * @vsi: the VSI to be searched
1402 * @macaddr: the MAC address
1404 * @is_vf: make sure it's a VF filter, else doesn't matter
1405 * @is_netdev: make sure it's a netdev filter, else doesn't matter
1407 * NOTE: This function is expected to be called with mac_filter_list_lock
1409 * ANOTHER NOTE: This function MUST be called from within the context of
1410 * the "safe" variants of any list iterators, e.g. list_for_each_entry_safe()
1411 * instead of list_for_each_entry().
1413 void i40e_del_filter(struct i40e_vsi
*vsi
,
1414 u8
*macaddr
, s16 vlan
,
1415 bool is_vf
, bool is_netdev
)
1417 struct i40e_mac_filter
*f
;
1419 if (!vsi
|| !macaddr
)
1422 f
= i40e_find_filter(vsi
, macaddr
, vlan
, is_vf
, is_netdev
);
1423 if (!f
|| f
->counter
== 0)
1431 } else if (is_netdev
) {
1433 f
->is_netdev
= false;
1437 /* make sure we don't remove a filter in use by VF or netdev */
1440 min_f
+= (f
->is_vf
? 1 : 0);
1441 min_f
+= (f
->is_netdev
? 1 : 0);
1443 if (f
->counter
> min_f
)
1447 /* counter == 0 tells sync_filters_subtask to
1448 * remove the filter from the firmware's list
1450 if (f
->counter
== 0) {
1451 if ((f
->state
== I40E_FILTER_FAILED
) ||
1452 (f
->state
== I40E_FILTER_NEW
)) {
1453 /* this one never got added by the FW. Just remove it,
1454 * no need to sync anything.
1459 f
->state
= I40E_FILTER_REMOVE
;
1460 vsi
->flags
|= I40E_VSI_FLAG_FILTER_CHANGED
;
1461 vsi
->back
->flags
|= I40E_FLAG_FILTER_SYNC
;
1467 * i40e_set_mac - NDO callback to set mac address
1468 * @netdev: network interface device structure
1469 * @p: pointer to an address structure
1471 * Returns 0 on success, negative on failure
1474 int i40e_set_mac(struct net_device
*netdev
, void *p
)
1476 static int i40e_set_mac(struct net_device
*netdev
, void *p
)
1479 struct i40e_netdev_priv
*np
= netdev_priv(netdev
);
1480 struct i40e_vsi
*vsi
= np
->vsi
;
1481 struct i40e_pf
*pf
= vsi
->back
;
1482 struct i40e_hw
*hw
= &pf
->hw
;
1483 struct sockaddr
*addr
= p
;
1485 if (!is_valid_ether_addr(addr
->sa_data
))
1486 return -EADDRNOTAVAIL
;
1488 if (ether_addr_equal(netdev
->dev_addr
, addr
->sa_data
)) {
1489 netdev_info(netdev
, "already using mac address %pM\n",
1494 if (test_bit(__I40E_DOWN
, &vsi
->back
->state
) ||
1495 test_bit(__I40E_RESET_RECOVERY_PENDING
, &vsi
->back
->state
))
1496 return -EADDRNOTAVAIL
;
1498 if (ether_addr_equal(hw
->mac
.addr
, addr
->sa_data
))
1499 netdev_info(netdev
, "returning to hw mac address %pM\n",
1502 netdev_info(netdev
, "set new mac address %pM\n", addr
->sa_data
);
1504 spin_lock_bh(&vsi
->mac_filter_list_lock
);
1505 i40e_del_mac_all_vlan(vsi
, netdev
->dev_addr
, false, true);
1506 i40e_put_mac_in_vlan(vsi
, addr
->sa_data
, false, true);
1507 spin_unlock_bh(&vsi
->mac_filter_list_lock
);
1508 ether_addr_copy(netdev
->dev_addr
, addr
->sa_data
);
1509 if (vsi
->type
== I40E_VSI_MAIN
) {
1512 ret
= i40e_aq_mac_address_write(&vsi
->back
->hw
,
1513 I40E_AQC_WRITE_TYPE_LAA_WOL
,
1514 addr
->sa_data
, NULL
);
1516 netdev_info(netdev
, "Ignoring error from firmware on LAA update, status %s, AQ ret %s\n",
1517 i40e_stat_str(hw
, ret
),
1518 i40e_aq_str(hw
, hw
->aq
.asq_last_status
));
1521 /* schedule our worker thread which will take care of
1522 * applying the new filter changes
1524 i40e_service_event_schedule(vsi
->back
);
1529 * i40e_vsi_setup_queue_map - Setup a VSI queue map based on enabled_tc
1530 * @vsi: the VSI being setup
1531 * @ctxt: VSI context structure
1532 * @enabled_tc: Enabled TCs bitmap
1533 * @is_add: True if called before Add VSI
1535 * Setup VSI queue mapping for enabled traffic classes.
1538 void i40e_vsi_setup_queue_map(struct i40e_vsi
*vsi
,
1539 struct i40e_vsi_context
*ctxt
,
1543 static void i40e_vsi_setup_queue_map(struct i40e_vsi
*vsi
,
1544 struct i40e_vsi_context
*ctxt
,
1549 struct i40e_pf
*pf
= vsi
->back
;
1559 sections
= I40E_AQ_VSI_PROP_QUEUE_MAP_VALID
;
1562 if (enabled_tc
&& (vsi
->back
->flags
& I40E_FLAG_DCB_ENABLED
)) {
1563 /* Find numtc from enabled TC bitmap */
1564 for (i
= 0; i
< I40E_MAX_TRAFFIC_CLASS
; i
++) {
1565 if (enabled_tc
& BIT(i
)) /* TC is enabled */
1569 dev_warn(&pf
->pdev
->dev
, "DCB is enabled but no TC enabled, forcing TC0\n");
1573 /* At least TC0 is enabled in case of non-DCB case */
1577 vsi
->tc_config
.numtc
= numtc
;
1578 vsi
->tc_config
.enabled_tc
= enabled_tc
? enabled_tc
: 1;
1579 /* Number of queues per enabled TC */
1580 qcount
= vsi
->alloc_queue_pairs
;
1582 num_tc_qps
= qcount
/ numtc
;
1583 num_tc_qps
= min_t(int, num_tc_qps
, i40e_pf_get_max_q_per_tc(pf
));
1585 /* Setup queue offset/count for all TCs for given VSI */
1586 for (i
= 0; i
< I40E_MAX_TRAFFIC_CLASS
; i
++) {
1587 /* See if the given TC is enabled for the given VSI */
1588 if (vsi
->tc_config
.enabled_tc
& BIT(i
)) {
1592 switch (vsi
->type
) {
1594 qcount
= min_t(int, pf
->alloc_rss_size
,
1599 qcount
= num_tc_qps
;
1603 case I40E_VSI_SRIOV
:
1604 case I40E_VSI_VMDQ2
:
1606 qcount
= num_tc_qps
;
1610 vsi
->tc_config
.tc_info
[i
].qoffset
= offset
;
1611 vsi
->tc_config
.tc_info
[i
].qcount
= qcount
;
1613 /* find the next higher power-of-2 of num queue pairs */
1616 while (num_qps
&& (BIT_ULL(pow
) < qcount
)) {
1621 vsi
->tc_config
.tc_info
[i
].netdev_tc
= netdev_tc
++;
1623 (offset
<< I40E_AQ_VSI_TC_QUE_OFFSET_SHIFT
) |
1624 (pow
<< I40E_AQ_VSI_TC_QUE_NUMBER_SHIFT
);
1628 /* TC is not enabled so set the offset to
1629 * default queue and allocate one queue
1632 vsi
->tc_config
.tc_info
[i
].qoffset
= 0;
1633 vsi
->tc_config
.tc_info
[i
].qcount
= 1;
1634 vsi
->tc_config
.tc_info
[i
].netdev_tc
= 0;
1638 ctxt
->info
.tc_mapping
[i
] = cpu_to_le16(qmap
);
1641 /* Set actual Tx/Rx queue pairs */
1642 vsi
->num_queue_pairs
= offset
;
1643 if ((vsi
->type
== I40E_VSI_MAIN
) && (numtc
== 1)) {
1644 if (vsi
->req_queue_pairs
> 0)
1645 vsi
->num_queue_pairs
= vsi
->req_queue_pairs
;
1646 else if (pf
->flags
& I40E_FLAG_MSIX_ENABLED
)
1647 vsi
->num_queue_pairs
= pf
->num_lan_msix
;
1650 /* Scheduler section valid can only be set for ADD VSI */
1652 sections
|= I40E_AQ_VSI_PROP_SCHED_VALID
;
1654 ctxt
->info
.up_enable_bits
= enabled_tc
;
1656 if (vsi
->type
== I40E_VSI_SRIOV
) {
1657 ctxt
->info
.mapping_flags
|=
1658 cpu_to_le16(I40E_AQ_VSI_QUE_MAP_NONCONTIG
);
1659 for (i
= 0; i
< vsi
->num_queue_pairs
; i
++)
1660 ctxt
->info
.queue_mapping
[i
] =
1661 cpu_to_le16(vsi
->base_queue
+ i
);
1663 ctxt
->info
.mapping_flags
|=
1664 cpu_to_le16(I40E_AQ_VSI_QUE_MAP_CONTIG
);
1665 ctxt
->info
.queue_mapping
[0] = cpu_to_le16(vsi
->base_queue
);
1667 ctxt
->info
.valid_sections
|= cpu_to_le16(sections
);
1671 * i40e_set_rx_mode - NDO callback to set the netdev filters
1672 * @netdev: network interface device structure
1675 void i40e_set_rx_mode(struct net_device
*netdev
)
1677 static void i40e_set_rx_mode(struct net_device
*netdev
)
1680 struct i40e_netdev_priv
*np
= netdev_priv(netdev
);
1681 struct i40e_mac_filter
*f
, *ftmp
;
1682 struct i40e_vsi
*vsi
= np
->vsi
;
1683 struct netdev_hw_addr
*uca
;
1684 struct netdev_hw_addr
*mca
;
1685 struct netdev_hw_addr
*ha
;
1687 spin_lock_bh(&vsi
->mac_filter_list_lock
);
1689 /* add addr if not already in the filter list */
1690 netdev_for_each_uc_addr(uca
, netdev
) {
1691 if (!i40e_find_mac(vsi
, uca
->addr
, false, true)) {
1692 if (i40e_is_vsi_in_vlan(vsi
))
1693 i40e_put_mac_in_vlan(vsi
, uca
->addr
,
1696 i40e_add_filter(vsi
, uca
->addr
, I40E_VLAN_ANY
,
1701 netdev_for_each_mc_addr(mca
, netdev
) {
1702 if (!i40e_find_mac(vsi
, mca
->addr
, false, true)) {
1703 if (i40e_is_vsi_in_vlan(vsi
))
1704 i40e_put_mac_in_vlan(vsi
, mca
->addr
,
1707 i40e_add_filter(vsi
, mca
->addr
, I40E_VLAN_ANY
,
1712 /* remove filter if not in netdev list */
1713 list_for_each_entry_safe(f
, ftmp
, &vsi
->mac_filter_list
, list
) {
1718 netdev_for_each_mc_addr(mca
, netdev
)
1719 if (ether_addr_equal(mca
->addr
, f
->macaddr
))
1720 goto bottom_of_search_loop
;
1722 netdev_for_each_uc_addr(uca
, netdev
)
1723 if (ether_addr_equal(uca
->addr
, f
->macaddr
))
1724 goto bottom_of_search_loop
;
1726 for_each_dev_addr(netdev
, ha
)
1727 if (ether_addr_equal(ha
->addr
, f
->macaddr
))
1728 goto bottom_of_search_loop
;
1730 /* f->macaddr wasn't found in uc, mc, or ha list so delete it */
1731 i40e_del_filter(vsi
, f
->macaddr
, I40E_VLAN_ANY
, false, true);
1733 bottom_of_search_loop
:
1736 spin_unlock_bh(&vsi
->mac_filter_list_lock
);
1738 /* check for other flag changes */
1739 if (vsi
->current_netdev_flags
!= vsi
->netdev
->flags
) {
1740 vsi
->flags
|= I40E_VSI_FLAG_FILTER_CHANGED
;
1741 vsi
->back
->flags
|= I40E_FLAG_FILTER_SYNC
;
1744 /* schedule our worker thread which will take care of
1745 * applying the new filter changes
1747 i40e_service_event_schedule(vsi
->back
);
1751 * i40e_undo_del_filter_entries - Undo the changes made to MAC filter entries
1752 * @vsi: pointer to vsi struct
1753 * @from: Pointer to list which contains MAC filter entries - changes to
1754 * those entries needs to be undone.
1756 * MAC filter entries from list were slated to be removed from device.
1758 static void i40e_undo_del_filter_entries(struct i40e_vsi
*vsi
,
1759 struct list_head
*from
)
1761 struct i40e_mac_filter
*f
, *ftmp
;
1763 list_for_each_entry_safe(f
, ftmp
, from
, list
) {
1764 /* Move the element back into MAC filter list*/
1765 list_move_tail(&f
->list
, &vsi
->mac_filter_list
);
1770 * i40e_update_filter_state - Update filter state based on return data
1772 * @count: Number of filters added
1773 * @add_list: return data from fw
1774 * @head: pointer to first filter in current batch
1775 * @aq_err: status from fw
1777 * MAC filter entries from list were slated to be added to device. Returns
1778 * number of successful filters. Note that 0 does NOT mean success!
1781 i40e_update_filter_state(int count
,
1782 struct i40e_aqc_add_macvlan_element_data
*add_list
,
1783 struct i40e_mac_filter
*add_head
, int aq_err
)
1791 /* Everything's good, mark all filters active. */
1792 for (i
= 0; i
< count
; i
++) {
1793 add_head
->state
= I40E_FILTER_ACTIVE
;
1794 add_head
= list_next_entry(add_head
, list
);
1796 } else if (aq_err
== I40E_AQ_RC_ENOSPC
) {
1797 /* Device ran out of filter space. Check the return value
1798 * for each filter to see which ones are active.
1800 for (i
= 0; i
< count
; i
++) {
1801 if (add_list
[i
].match_method
==
1802 I40E_AQC_MM_ERR_NO_RES
) {
1803 add_head
->state
= I40E_FILTER_FAILED
;
1805 add_head
->state
= I40E_FILTER_ACTIVE
;
1808 add_head
= list_next_entry(add_head
, list
);
1811 /* Some other horrible thing happened, fail all filters */
1813 for (i
= 0; i
< count
; i
++) {
1814 add_head
->state
= I40E_FILTER_FAILED
;
1815 add_head
= list_next_entry(add_head
, list
);
1822 * i40e_sync_vsi_filters - Update the VSI filter list to the HW
1823 * @vsi: ptr to the VSI
1825 * Push any outstanding VSI filter changes through the AdminQ.
1827 * Returns 0 or error value
1829 int i40e_sync_vsi_filters(struct i40e_vsi
*vsi
)
1831 struct i40e_mac_filter
*f
, *ftmp
, *add_head
= NULL
;
1832 struct list_head tmp_add_list
, tmp_del_list
;
1833 struct i40e_hw
*hw
= &vsi
->back
->hw
;
1834 bool promisc_changed
= false;
1835 char vsi_name
[16] = "PF";
1836 int filter_list_len
= 0;
1837 u32 changed_flags
= 0;
1838 i40e_status aq_ret
= 0;
1848 /* empty array typed pointers, kcalloc later */
1849 struct i40e_aqc_add_macvlan_element_data
*add_list
;
1850 struct i40e_aqc_remove_macvlan_element_data
*del_list
;
1852 while (test_and_set_bit(__I40E_CONFIG_BUSY
, &vsi
->state
))
1853 usleep_range(1000, 2000);
1857 changed_flags
= vsi
->current_netdev_flags
^ vsi
->netdev
->flags
;
1858 vsi
->current_netdev_flags
= vsi
->netdev
->flags
;
1861 INIT_LIST_HEAD(&tmp_add_list
);
1862 INIT_LIST_HEAD(&tmp_del_list
);
1864 if (vsi
->type
== I40E_VSI_SRIOV
)
1865 snprintf(vsi_name
, sizeof(vsi_name
) - 1, "VF %d", vsi
->vf_id
);
1866 else if (vsi
->type
!= I40E_VSI_MAIN
)
1867 snprintf(vsi_name
, sizeof(vsi_name
) - 1, "vsi %d", vsi
->seid
);
1869 if (vsi
->flags
& I40E_VSI_FLAG_FILTER_CHANGED
) {
1870 vsi
->flags
&= ~I40E_VSI_FLAG_FILTER_CHANGED
;
1872 spin_lock_bh(&vsi
->mac_filter_list_lock
);
1873 /* Create a list of filters to delete. */
1874 list_for_each_entry_safe(f
, ftmp
, &vsi
->mac_filter_list
, list
) {
1875 if (f
->state
== I40E_FILTER_REMOVE
) {
1876 WARN_ON(f
->counter
!= 0);
1877 /* Move the element into temporary del_list */
1878 list_move_tail(&f
->list
, &tmp_del_list
);
1879 vsi
->active_filters
--;
1881 if (f
->state
== I40E_FILTER_NEW
) {
1882 WARN_ON(f
->counter
== 0);
1883 /* Move the element into temporary add_list */
1884 list_move_tail(&f
->list
, &tmp_add_list
);
1887 spin_unlock_bh(&vsi
->mac_filter_list_lock
);
1890 /* Now process 'del_list' outside the lock */
1891 if (!list_empty(&tmp_del_list
)) {
1892 filter_list_len
= hw
->aq
.asq_buf_size
/
1893 sizeof(struct i40e_aqc_remove_macvlan_element_data
);
1894 list_size
= filter_list_len
*
1895 sizeof(struct i40e_aqc_remove_macvlan_element_data
);
1896 del_list
= kzalloc(list_size
, GFP_ATOMIC
);
1898 /* Undo VSI's MAC filter entry element updates */
1899 spin_lock_bh(&vsi
->mac_filter_list_lock
);
1900 i40e_undo_del_filter_entries(vsi
, &tmp_del_list
);
1901 spin_unlock_bh(&vsi
->mac_filter_list_lock
);
1906 list_for_each_entry_safe(f
, ftmp
, &tmp_del_list
, list
) {
1909 /* add to delete list */
1910 ether_addr_copy(del_list
[num_del
].mac_addr
, f
->macaddr
);
1911 if (f
->vlan
== I40E_VLAN_ANY
) {
1912 del_list
[num_del
].vlan_tag
= 0;
1913 cmd_flags
|= I40E_AQC_MACVLAN_ADD_IGNORE_VLAN
;
1915 del_list
[num_del
].vlan_tag
=
1916 cpu_to_le16((u16
)(f
->vlan
));
1919 cmd_flags
|= I40E_AQC_MACVLAN_DEL_PERFECT_MATCH
;
1920 del_list
[num_del
].flags
= cmd_flags
;
1923 /* flush a full buffer */
1924 if (num_del
== filter_list_len
) {
1925 aq_ret
= i40e_aq_remove_macvlan(hw
, vsi
->seid
,
1928 aq_err
= hw
->aq
.asq_last_status
;
1930 memset(del_list
, 0, list_size
);
1932 /* Explicitly ignore and do not report when
1933 * firmware returns ENOENT.
1935 if (aq_ret
&& !(aq_err
== I40E_AQ_RC_ENOENT
)) {
1937 dev_info(&pf
->pdev
->dev
,
1938 "ignoring delete macvlan error on %s, err %s, aq_err %s\n",
1940 i40e_stat_str(hw
, aq_ret
),
1941 i40e_aq_str(hw
, aq_err
));
1944 /* Release memory for MAC filter entries which were
1945 * synced up with HW.
1952 aq_ret
= i40e_aq_remove_macvlan(hw
, vsi
->seid
, del_list
,
1954 aq_err
= hw
->aq
.asq_last_status
;
1957 /* Explicitly ignore and do not report when firmware
1960 if (aq_ret
&& !(aq_err
== I40E_AQ_RC_ENOENT
)) {
1962 dev_info(&pf
->pdev
->dev
,
1963 "ignoring delete macvlan error on %s, err %s aq_err %s\n",
1965 i40e_stat_str(hw
, aq_ret
),
1966 i40e_aq_str(hw
, aq_err
));
1974 if (!list_empty(&tmp_add_list
)) {
1975 /* Do all the adds now. */
1976 filter_list_len
= hw
->aq
.asq_buf_size
/
1977 sizeof(struct i40e_aqc_add_macvlan_element_data
);
1978 list_size
= filter_list_len
*
1979 sizeof(struct i40e_aqc_add_macvlan_element_data
);
1980 add_list
= kzalloc(list_size
, GFP_ATOMIC
);
1986 list_for_each_entry(f
, &tmp_add_list
, list
) {
1987 if (test_bit(__I40E_FILTER_OVERFLOW_PROMISC
,
1989 f
->state
= I40E_FILTER_FAILED
;
1992 /* add to add array */
1996 ether_addr_copy(add_list
[num_add
].mac_addr
, f
->macaddr
);
1997 if (f
->vlan
== I40E_VLAN_ANY
) {
1998 add_list
[num_add
].vlan_tag
= 0;
1999 cmd_flags
|= I40E_AQC_MACVLAN_ADD_IGNORE_VLAN
;
2001 add_list
[num_add
].vlan_tag
=
2002 cpu_to_le16((u16
)(f
->vlan
));
2004 add_list
[num_add
].queue_number
= 0;
2005 cmd_flags
|= I40E_AQC_MACVLAN_ADD_PERFECT_MATCH
;
2006 add_list
[num_add
].flags
= cpu_to_le16(cmd_flags
);
2009 /* flush a full buffer */
2010 if (num_add
== filter_list_len
) {
2011 aq_ret
= i40e_aq_add_macvlan(hw
, vsi
->seid
,
2014 aq_err
= hw
->aq
.asq_last_status
;
2015 fcnt
= i40e_update_filter_state(num_add
,
2019 vsi
->active_filters
+= fcnt
;
2021 if (fcnt
!= num_add
) {
2022 promisc_changed
= true;
2023 set_bit(__I40E_FILTER_OVERFLOW_PROMISC
,
2025 vsi
->promisc_threshold
=
2026 (vsi
->active_filters
* 3) / 4;
2027 dev_warn(&pf
->pdev
->dev
,
2028 "Error %s adding RX filters on %s, promiscuous mode forced on\n",
2029 i40e_aq_str(hw
, aq_err
),
2032 memset(add_list
, 0, list_size
);
2037 aq_ret
= i40e_aq_add_macvlan(hw
, vsi
->seid
,
2038 add_list
, num_add
, NULL
);
2039 aq_err
= hw
->aq
.asq_last_status
;
2040 fcnt
= i40e_update_filter_state(num_add
, add_list
,
2042 vsi
->active_filters
+= fcnt
;
2043 if (fcnt
!= num_add
) {
2044 promisc_changed
= true;
2045 set_bit(__I40E_FILTER_OVERFLOW_PROMISC
,
2047 vsi
->promisc_threshold
=
2048 (vsi
->active_filters
* 3) / 4;
2049 dev_warn(&pf
->pdev
->dev
,
2050 "Error %s adding RX filters on %s, promiscuous mode forced on\n",
2051 i40e_aq_str(hw
, aq_err
), vsi_name
);
2054 /* Now move all of the filters from the temp add list back to
2057 spin_lock_bh(&vsi
->mac_filter_list_lock
);
2058 list_for_each_entry_safe(f
, ftmp
, &tmp_add_list
, list
) {
2059 list_move_tail(&f
->list
, &vsi
->mac_filter_list
);
2061 spin_unlock_bh(&vsi
->mac_filter_list_lock
);
2066 /* Check to see if we can drop out of overflow promiscuous mode. */
2067 if (test_bit(__I40E_FILTER_OVERFLOW_PROMISC
, &vsi
->state
) &&
2068 (vsi
->active_filters
< vsi
->promisc_threshold
)) {
2069 int failed_count
= 0;
2070 /* See if we have any failed filters. We can't drop out of
2071 * promiscuous until these have all been deleted.
2073 spin_lock_bh(&vsi
->mac_filter_list_lock
);
2074 list_for_each_entry(f
, &vsi
->mac_filter_list
, list
) {
2075 if (f
->state
== I40E_FILTER_FAILED
)
2078 spin_unlock_bh(&vsi
->mac_filter_list_lock
);
2079 if (!failed_count
) {
2080 dev_info(&pf
->pdev
->dev
,
2081 "filter logjam cleared on %s, leaving overflow promiscuous mode\n",
2083 clear_bit(__I40E_FILTER_OVERFLOW_PROMISC
, &vsi
->state
);
2084 promisc_changed
= true;
2085 vsi
->promisc_threshold
= 0;
2089 /* if the VF is not trusted do not do promisc */
2090 if ((vsi
->type
== I40E_VSI_SRIOV
) && !pf
->vf
[vsi
->vf_id
].trusted
) {
2091 clear_bit(__I40E_FILTER_OVERFLOW_PROMISC
, &vsi
->state
);
2095 /* check for changes in promiscuous modes */
2096 if (changed_flags
& IFF_ALLMULTI
) {
2097 bool cur_multipromisc
;
2099 cur_multipromisc
= !!(vsi
->current_netdev_flags
& IFF_ALLMULTI
);
2100 aq_ret
= i40e_aq_set_vsi_multicast_promiscuous(&vsi
->back
->hw
,
2105 retval
= i40e_aq_rc_to_posix(aq_ret
,
2106 hw
->aq
.asq_last_status
);
2107 dev_info(&pf
->pdev
->dev
,
2108 "set multi promisc failed on %s, err %s aq_err %s\n",
2110 i40e_stat_str(hw
, aq_ret
),
2111 i40e_aq_str(hw
, hw
->aq
.asq_last_status
));
2114 if ((changed_flags
& IFF_PROMISC
) ||
2116 test_bit(__I40E_FILTER_OVERFLOW_PROMISC
, &vsi
->state
))) {
2119 cur_promisc
= (!!(vsi
->current_netdev_flags
& IFF_PROMISC
) ||
2120 test_bit(__I40E_FILTER_OVERFLOW_PROMISC
,
2122 if ((vsi
->type
== I40E_VSI_MAIN
) &&
2123 (pf
->lan_veb
!= I40E_NO_VEB
) &&
2124 !(pf
->flags
& I40E_FLAG_MFP_ENABLED
)) {
2125 /* set defport ON for Main VSI instead of true promisc
2126 * this way we will get all unicast/multicast and VLAN
2127 * promisc behavior but will not get VF or VMDq traffic
2128 * replicated on the Main VSI.
2130 if (pf
->cur_promisc
!= cur_promisc
) {
2131 pf
->cur_promisc
= cur_promisc
;
2134 i40e_aq_set_default_vsi(hw
,
2139 i40e_aq_clear_default_vsi(hw
,
2143 retval
= i40e_aq_rc_to_posix(aq_ret
,
2144 hw
->aq
.asq_last_status
);
2145 dev_info(&pf
->pdev
->dev
,
2146 "Set default VSI failed on %s, err %s, aq_err %s\n",
2148 i40e_stat_str(hw
, aq_ret
),
2150 hw
->aq
.asq_last_status
));
2154 aq_ret
= i40e_aq_set_vsi_unicast_promiscuous(
2161 i40e_aq_rc_to_posix(aq_ret
,
2162 hw
->aq
.asq_last_status
);
2163 dev_info(&pf
->pdev
->dev
,
2164 "set unicast promisc failed on %s, err %s, aq_err %s\n",
2166 i40e_stat_str(hw
, aq_ret
),
2168 hw
->aq
.asq_last_status
));
2170 aq_ret
= i40e_aq_set_vsi_multicast_promiscuous(
2176 i40e_aq_rc_to_posix(aq_ret
,
2177 hw
->aq
.asq_last_status
);
2178 dev_info(&pf
->pdev
->dev
,
2179 "set multicast promisc failed on %s, err %s, aq_err %s\n",
2181 i40e_stat_str(hw
, aq_ret
),
2183 hw
->aq
.asq_last_status
));
2186 aq_ret
= i40e_aq_set_vsi_broadcast(&vsi
->back
->hw
,
2190 retval
= i40e_aq_rc_to_posix(aq_ret
,
2191 pf
->hw
.aq
.asq_last_status
);
2192 dev_info(&pf
->pdev
->dev
,
2193 "set brdcast promisc failed, err %s, aq_err %s\n",
2194 i40e_stat_str(hw
, aq_ret
),
2196 hw
->aq
.asq_last_status
));
2200 /* if something went wrong then set the changed flag so we try again */
2202 vsi
->flags
|= I40E_VSI_FLAG_FILTER_CHANGED
;
2204 clear_bit(__I40E_CONFIG_BUSY
, &vsi
->state
);
2209 * i40e_sync_filters_subtask - Sync the VSI filter list with HW
2210 * @pf: board private structure
2212 static void i40e_sync_filters_subtask(struct i40e_pf
*pf
)
2216 if (!pf
|| !(pf
->flags
& I40E_FLAG_FILTER_SYNC
))
2218 pf
->flags
&= ~I40E_FLAG_FILTER_SYNC
;
2220 for (v
= 0; v
< pf
->num_alloc_vsi
; v
++) {
2222 (pf
->vsi
[v
]->flags
& I40E_VSI_FLAG_FILTER_CHANGED
)) {
2223 int ret
= i40e_sync_vsi_filters(pf
->vsi
[v
]);
2226 /* come back and try again later */
2227 pf
->flags
|= I40E_FLAG_FILTER_SYNC
;
2235 * i40e_change_mtu - NDO callback to change the Maximum Transfer Unit
2236 * @netdev: network interface device structure
2237 * @new_mtu: new value for maximum frame size
2239 * Returns 0 on success, negative on failure
2241 static int i40e_change_mtu(struct net_device
*netdev
, int new_mtu
)
2243 struct i40e_netdev_priv
*np
= netdev_priv(netdev
);
2244 int max_frame
= new_mtu
+ ETH_HLEN
+ ETH_FCS_LEN
+ VLAN_HLEN
;
2245 struct i40e_vsi
*vsi
= np
->vsi
;
2247 /* MTU < 68 is an error and causes problems on some kernels */
2248 if ((new_mtu
< 68) || (max_frame
> I40E_MAX_RXBUFFER
))
2251 netdev_info(netdev
, "changing MTU from %d to %d\n",
2252 netdev
->mtu
, new_mtu
);
2253 netdev
->mtu
= new_mtu
;
2254 if (netif_running(netdev
))
2255 i40e_vsi_reinit_locked(vsi
);
2256 i40e_notify_client_of_l2_param_changes(vsi
);
2261 * i40e_ioctl - Access the hwtstamp interface
2262 * @netdev: network interface device structure
2263 * @ifr: interface request data
2264 * @cmd: ioctl command
2266 int i40e_ioctl(struct net_device
*netdev
, struct ifreq
*ifr
, int cmd
)
2268 struct i40e_netdev_priv
*np
= netdev_priv(netdev
);
2269 struct i40e_pf
*pf
= np
->vsi
->back
;
2273 return i40e_ptp_get_ts_config(pf
, ifr
);
2275 return i40e_ptp_set_ts_config(pf
, ifr
);
2282 * i40e_vlan_stripping_enable - Turn on vlan stripping for the VSI
2283 * @vsi: the vsi being adjusted
2285 void i40e_vlan_stripping_enable(struct i40e_vsi
*vsi
)
2287 struct i40e_vsi_context ctxt
;
2290 if ((vsi
->info
.valid_sections
&
2291 cpu_to_le16(I40E_AQ_VSI_PROP_VLAN_VALID
)) &&
2292 ((vsi
->info
.port_vlan_flags
& I40E_AQ_VSI_PVLAN_MODE_MASK
) == 0))
2293 return; /* already enabled */
2295 vsi
->info
.valid_sections
= cpu_to_le16(I40E_AQ_VSI_PROP_VLAN_VALID
);
2296 vsi
->info
.port_vlan_flags
= I40E_AQ_VSI_PVLAN_MODE_ALL
|
2297 I40E_AQ_VSI_PVLAN_EMOD_STR_BOTH
;
2299 ctxt
.seid
= vsi
->seid
;
2300 ctxt
.info
= vsi
->info
;
2301 ret
= i40e_aq_update_vsi_params(&vsi
->back
->hw
, &ctxt
, NULL
);
2303 dev_info(&vsi
->back
->pdev
->dev
,
2304 "update vlan stripping failed, err %s aq_err %s\n",
2305 i40e_stat_str(&vsi
->back
->hw
, ret
),
2306 i40e_aq_str(&vsi
->back
->hw
,
2307 vsi
->back
->hw
.aq
.asq_last_status
));
2312 * i40e_vlan_stripping_disable - Turn off vlan stripping for the VSI
2313 * @vsi: the vsi being adjusted
2315 void i40e_vlan_stripping_disable(struct i40e_vsi
*vsi
)
2317 struct i40e_vsi_context ctxt
;
2320 if ((vsi
->info
.valid_sections
&
2321 cpu_to_le16(I40E_AQ_VSI_PROP_VLAN_VALID
)) &&
2322 ((vsi
->info
.port_vlan_flags
& I40E_AQ_VSI_PVLAN_EMOD_MASK
) ==
2323 I40E_AQ_VSI_PVLAN_EMOD_MASK
))
2324 return; /* already disabled */
2326 vsi
->info
.valid_sections
= cpu_to_le16(I40E_AQ_VSI_PROP_VLAN_VALID
);
2327 vsi
->info
.port_vlan_flags
= I40E_AQ_VSI_PVLAN_MODE_ALL
|
2328 I40E_AQ_VSI_PVLAN_EMOD_NOTHING
;
2330 ctxt
.seid
= vsi
->seid
;
2331 ctxt
.info
= vsi
->info
;
2332 ret
= i40e_aq_update_vsi_params(&vsi
->back
->hw
, &ctxt
, NULL
);
2334 dev_info(&vsi
->back
->pdev
->dev
,
2335 "update vlan stripping failed, err %s aq_err %s\n",
2336 i40e_stat_str(&vsi
->back
->hw
, ret
),
2337 i40e_aq_str(&vsi
->back
->hw
,
2338 vsi
->back
->hw
.aq
.asq_last_status
));
2343 * i40e_vlan_rx_register - Setup or shutdown vlan offload
2344 * @netdev: network interface to be adjusted
2345 * @features: netdev features to test if VLAN offload is enabled or not
2347 static void i40e_vlan_rx_register(struct net_device
*netdev
, u32 features
)
2349 struct i40e_netdev_priv
*np
= netdev_priv(netdev
);
2350 struct i40e_vsi
*vsi
= np
->vsi
;
2352 if (features
& NETIF_F_HW_VLAN_CTAG_RX
)
2353 i40e_vlan_stripping_enable(vsi
);
2355 i40e_vlan_stripping_disable(vsi
);
2359 * i40e_vsi_add_vlan - Add vsi membership for given vlan
2360 * @vsi: the vsi being configured
2361 * @vid: vlan id to be added (0 = untagged only , -1 = any)
2363 int i40e_vsi_add_vlan(struct i40e_vsi
*vsi
, s16 vid
)
2365 struct i40e_mac_filter
*f
, *ftmp
, *add_f
;
2366 bool is_netdev
, is_vf
;
2368 is_vf
= (vsi
->type
== I40E_VSI_SRIOV
);
2369 is_netdev
= !!(vsi
->netdev
);
2371 /* Locked once because all functions invoked below iterates list*/
2372 spin_lock_bh(&vsi
->mac_filter_list_lock
);
2375 add_f
= i40e_add_filter(vsi
, vsi
->netdev
->dev_addr
, vid
,
2378 dev_info(&vsi
->back
->pdev
->dev
,
2379 "Could not add vlan filter %d for %pM\n",
2380 vid
, vsi
->netdev
->dev_addr
);
2381 spin_unlock_bh(&vsi
->mac_filter_list_lock
);
2386 list_for_each_entry_safe(f
, ftmp
, &vsi
->mac_filter_list
, list
) {
2387 add_f
= i40e_add_filter(vsi
, f
->macaddr
, vid
, is_vf
, is_netdev
);
2389 dev_info(&vsi
->back
->pdev
->dev
,
2390 "Could not add vlan filter %d for %pM\n",
2392 spin_unlock_bh(&vsi
->mac_filter_list_lock
);
2397 /* Now if we add a vlan tag, make sure to check if it is the first
2398 * tag (i.e. a "tag" -1 does exist) and if so replace the -1 "tag"
2399 * with 0, so we now accept untagged and specified tagged traffic
2400 * (and not all tags along with untagged)
2403 if (is_netdev
&& i40e_find_filter(vsi
, vsi
->netdev
->dev_addr
,
2405 is_vf
, is_netdev
)) {
2406 i40e_del_filter(vsi
, vsi
->netdev
->dev_addr
,
2407 I40E_VLAN_ANY
, is_vf
, is_netdev
);
2408 add_f
= i40e_add_filter(vsi
, vsi
->netdev
->dev_addr
, 0,
2411 dev_info(&vsi
->back
->pdev
->dev
,
2412 "Could not add filter 0 for %pM\n",
2413 vsi
->netdev
->dev_addr
);
2414 spin_unlock_bh(&vsi
->mac_filter_list_lock
);
2420 /* Do not assume that I40E_VLAN_ANY should be reset to VLAN 0 */
2421 if (vid
> 0 && !vsi
->info
.pvid
) {
2422 list_for_each_entry_safe(f
, ftmp
, &vsi
->mac_filter_list
, list
) {
2423 if (!i40e_find_filter(vsi
, f
->macaddr
, I40E_VLAN_ANY
,
2426 i40e_del_filter(vsi
, f
->macaddr
, I40E_VLAN_ANY
,
2428 add_f
= i40e_add_filter(vsi
, f
->macaddr
,
2429 0, is_vf
, is_netdev
);
2431 dev_info(&vsi
->back
->pdev
->dev
,
2432 "Could not add filter 0 for %pM\n",
2434 spin_unlock_bh(&vsi
->mac_filter_list_lock
);
2440 spin_unlock_bh(&vsi
->mac_filter_list_lock
);
2442 /* schedule our worker thread which will take care of
2443 * applying the new filter changes
2445 i40e_service_event_schedule(vsi
->back
);
2450 * i40e_vsi_kill_vlan - Remove vsi membership for given vlan
2451 * @vsi: the vsi being configured
2452 * @vid: vlan id to be removed (0 = untagged only , -1 = any)
2454 * Return: 0 on success or negative otherwise
2456 int i40e_vsi_kill_vlan(struct i40e_vsi
*vsi
, s16 vid
)
2458 struct net_device
*netdev
= vsi
->netdev
;
2459 struct i40e_mac_filter
*f
, *ftmp
, *add_f
;
2460 bool is_vf
, is_netdev
;
2461 int filter_count
= 0;
2463 is_vf
= (vsi
->type
== I40E_VSI_SRIOV
);
2464 is_netdev
= !!(netdev
);
2466 /* Locked once because all functions invoked below iterates list */
2467 spin_lock_bh(&vsi
->mac_filter_list_lock
);
2470 i40e_del_filter(vsi
, netdev
->dev_addr
, vid
, is_vf
, is_netdev
);
2472 list_for_each_entry_safe(f
, ftmp
, &vsi
->mac_filter_list
, list
)
2473 i40e_del_filter(vsi
, f
->macaddr
, vid
, is_vf
, is_netdev
);
2475 /* go through all the filters for this VSI and if there is only
2476 * vid == 0 it means there are no other filters, so vid 0 must
2477 * be replaced with -1. This signifies that we should from now
2478 * on accept any traffic (with any tag present, or untagged)
2480 list_for_each_entry(f
, &vsi
->mac_filter_list
, list
) {
2483 ether_addr_equal(netdev
->dev_addr
, f
->macaddr
))
2491 if (!filter_count
&& is_netdev
) {
2492 i40e_del_filter(vsi
, netdev
->dev_addr
, 0, is_vf
, is_netdev
);
2493 f
= i40e_add_filter(vsi
, netdev
->dev_addr
, I40E_VLAN_ANY
,
2496 dev_info(&vsi
->back
->pdev
->dev
,
2497 "Could not add filter %d for %pM\n",
2498 I40E_VLAN_ANY
, netdev
->dev_addr
);
2499 spin_unlock_bh(&vsi
->mac_filter_list_lock
);
2504 if (!filter_count
) {
2505 list_for_each_entry_safe(f
, ftmp
, &vsi
->mac_filter_list
, list
) {
2506 i40e_del_filter(vsi
, f
->macaddr
, 0, is_vf
, is_netdev
);
2507 add_f
= i40e_add_filter(vsi
, f
->macaddr
, I40E_VLAN_ANY
,
2510 dev_info(&vsi
->back
->pdev
->dev
,
2511 "Could not add filter %d for %pM\n",
2512 I40E_VLAN_ANY
, f
->macaddr
);
2513 spin_unlock_bh(&vsi
->mac_filter_list_lock
);
2519 spin_unlock_bh(&vsi
->mac_filter_list_lock
);
2521 /* schedule our worker thread which will take care of
2522 * applying the new filter changes
2524 i40e_service_event_schedule(vsi
->back
);
2529 * i40e_vlan_rx_add_vid - Add a vlan id filter to HW offload
2530 * @netdev: network interface to be adjusted
2531 * @vid: vlan id to be added
2533 * net_device_ops implementation for adding vlan ids
2536 int i40e_vlan_rx_add_vid(struct net_device
*netdev
,
2537 __always_unused __be16 proto
, u16 vid
)
2539 static int i40e_vlan_rx_add_vid(struct net_device
*netdev
,
2540 __always_unused __be16 proto
, u16 vid
)
2543 struct i40e_netdev_priv
*np
= netdev_priv(netdev
);
2544 struct i40e_vsi
*vsi
= np
->vsi
;
2550 /* If the network stack called us with vid = 0 then
2551 * it is asking to receive priority tagged packets with
2552 * vlan id 0. Our HW receives them by default when configured
2553 * to receive untagged packets so there is no need to add an
2554 * extra filter for vlan 0 tagged packets.
2557 ret
= i40e_vsi_add_vlan(vsi
, vid
);
2559 if (!ret
&& (vid
< VLAN_N_VID
))
2560 set_bit(vid
, vsi
->active_vlans
);
2566 * i40e_vlan_rx_kill_vid - Remove a vlan id filter from HW offload
2567 * @netdev: network interface to be adjusted
2568 * @vid: vlan id to be removed
2570 * net_device_ops implementation for removing vlan ids
2573 int i40e_vlan_rx_kill_vid(struct net_device
*netdev
,
2574 __always_unused __be16 proto
, u16 vid
)
2576 static int i40e_vlan_rx_kill_vid(struct net_device
*netdev
,
2577 __always_unused __be16 proto
, u16 vid
)
2580 struct i40e_netdev_priv
*np
= netdev_priv(netdev
);
2581 struct i40e_vsi
*vsi
= np
->vsi
;
2583 /* return code is ignored as there is nothing a user
2584 * can do about failure to remove and a log message was
2585 * already printed from the other function
2587 i40e_vsi_kill_vlan(vsi
, vid
);
2589 clear_bit(vid
, vsi
->active_vlans
);
2595 * i40e_macaddr_init - explicitly write the mac address filters
2597 * @vsi: pointer to the vsi
2598 * @macaddr: the MAC address
2600 * This is needed when the macaddr has been obtained by other
2601 * means than the default, e.g., from Open Firmware or IDPROM.
2602 * Returns 0 on success, negative on failure
2604 static int i40e_macaddr_init(struct i40e_vsi
*vsi
, u8
*macaddr
)
2607 struct i40e_aqc_add_macvlan_element_data element
;
2609 ret
= i40e_aq_mac_address_write(&vsi
->back
->hw
,
2610 I40E_AQC_WRITE_TYPE_LAA_WOL
,
2613 dev_info(&vsi
->back
->pdev
->dev
,
2614 "Addr change for VSI failed: %d\n", ret
);
2615 return -EADDRNOTAVAIL
;
2618 memset(&element
, 0, sizeof(element
));
2619 ether_addr_copy(element
.mac_addr
, macaddr
);
2620 element
.flags
= cpu_to_le16(I40E_AQC_MACVLAN_ADD_PERFECT_MATCH
);
2621 ret
= i40e_aq_add_macvlan(&vsi
->back
->hw
, vsi
->seid
, &element
, 1, NULL
);
2623 dev_info(&vsi
->back
->pdev
->dev
,
2624 "add filter failed err %s aq_err %s\n",
2625 i40e_stat_str(&vsi
->back
->hw
, ret
),
2626 i40e_aq_str(&vsi
->back
->hw
,
2627 vsi
->back
->hw
.aq
.asq_last_status
));
2633 * i40e_restore_vlan - Reinstate vlans when vsi/netdev comes back up
2634 * @vsi: the vsi being brought back up
2636 static void i40e_restore_vlan(struct i40e_vsi
*vsi
)
2643 i40e_vlan_rx_register(vsi
->netdev
, vsi
->netdev
->features
);
2645 for_each_set_bit(vid
, vsi
->active_vlans
, VLAN_N_VID
)
2646 i40e_vlan_rx_add_vid(vsi
->netdev
, htons(ETH_P_8021Q
),
2651 * i40e_vsi_add_pvid - Add pvid for the VSI
2652 * @vsi: the vsi being adjusted
2653 * @vid: the vlan id to set as a PVID
2655 int i40e_vsi_add_pvid(struct i40e_vsi
*vsi
, u16 vid
)
2657 struct i40e_vsi_context ctxt
;
2660 vsi
->info
.valid_sections
= cpu_to_le16(I40E_AQ_VSI_PROP_VLAN_VALID
);
2661 vsi
->info
.pvid
= cpu_to_le16(vid
);
2662 vsi
->info
.port_vlan_flags
= I40E_AQ_VSI_PVLAN_MODE_TAGGED
|
2663 I40E_AQ_VSI_PVLAN_INSERT_PVID
|
2664 I40E_AQ_VSI_PVLAN_EMOD_STR
;
2666 ctxt
.seid
= vsi
->seid
;
2667 ctxt
.info
= vsi
->info
;
2668 ret
= i40e_aq_update_vsi_params(&vsi
->back
->hw
, &ctxt
, NULL
);
2670 dev_info(&vsi
->back
->pdev
->dev
,
2671 "add pvid failed, err %s aq_err %s\n",
2672 i40e_stat_str(&vsi
->back
->hw
, ret
),
2673 i40e_aq_str(&vsi
->back
->hw
,
2674 vsi
->back
->hw
.aq
.asq_last_status
));
2682 * i40e_vsi_remove_pvid - Remove the pvid from the VSI
2683 * @vsi: the vsi being adjusted
2685 * Just use the vlan_rx_register() service to put it back to normal
2687 void i40e_vsi_remove_pvid(struct i40e_vsi
*vsi
)
2689 i40e_vlan_stripping_disable(vsi
);
2695 * i40e_vsi_setup_tx_resources - Allocate VSI Tx queue resources
2696 * @vsi: ptr to the VSI
2698 * If this function returns with an error, then it's possible one or
2699 * more of the rings is populated (while the rest are not). It is the
2700 * callers duty to clean those orphaned rings.
2702 * Return 0 on success, negative on failure
2704 static int i40e_vsi_setup_tx_resources(struct i40e_vsi
*vsi
)
2708 for (i
= 0; i
< vsi
->num_queue_pairs
&& !err
; i
++)
2709 err
= i40e_setup_tx_descriptors(vsi
->tx_rings
[i
]);
2715 * i40e_vsi_free_tx_resources - Free Tx resources for VSI queues
2716 * @vsi: ptr to the VSI
2718 * Free VSI's transmit software resources
2720 static void i40e_vsi_free_tx_resources(struct i40e_vsi
*vsi
)
2727 for (i
= 0; i
< vsi
->num_queue_pairs
; i
++)
2728 if (vsi
->tx_rings
[i
] && vsi
->tx_rings
[i
]->desc
)
2729 i40e_free_tx_resources(vsi
->tx_rings
[i
]);
2733 * i40e_vsi_setup_rx_resources - Allocate VSI queues Rx resources
2734 * @vsi: ptr to the VSI
2736 * If this function returns with an error, then it's possible one or
2737 * more of the rings is populated (while the rest are not). It is the
2738 * callers duty to clean those orphaned rings.
2740 * Return 0 on success, negative on failure
2742 static int i40e_vsi_setup_rx_resources(struct i40e_vsi
*vsi
)
2746 for (i
= 0; i
< vsi
->num_queue_pairs
&& !err
; i
++)
2747 err
= i40e_setup_rx_descriptors(vsi
->rx_rings
[i
]);
2749 i40e_fcoe_setup_ddp_resources(vsi
);
2755 * i40e_vsi_free_rx_resources - Free Rx Resources for VSI queues
2756 * @vsi: ptr to the VSI
2758 * Free all receive software resources
2760 static void i40e_vsi_free_rx_resources(struct i40e_vsi
*vsi
)
2767 for (i
= 0; i
< vsi
->num_queue_pairs
; i
++)
2768 if (vsi
->rx_rings
[i
] && vsi
->rx_rings
[i
]->desc
)
2769 i40e_free_rx_resources(vsi
->rx_rings
[i
]);
2771 i40e_fcoe_free_ddp_resources(vsi
);
2776 * i40e_config_xps_tx_ring - Configure XPS for a Tx ring
2777 * @ring: The Tx ring to configure
2779 * This enables/disables XPS for a given Tx descriptor ring
2780 * based on the TCs enabled for the VSI that ring belongs to.
2782 static void i40e_config_xps_tx_ring(struct i40e_ring
*ring
)
2784 struct i40e_vsi
*vsi
= ring
->vsi
;
2787 if (!ring
->q_vector
|| !ring
->netdev
)
2790 /* Single TC mode enable XPS */
2791 if (vsi
->tc_config
.numtc
<= 1) {
2792 if (!test_and_set_bit(__I40E_TX_XPS_INIT_DONE
, &ring
->state
))
2793 netif_set_xps_queue(ring
->netdev
,
2794 &ring
->q_vector
->affinity_mask
,
2796 } else if (alloc_cpumask_var(&mask
, GFP_KERNEL
)) {
2797 /* Disable XPS to allow selection based on TC */
2798 bitmap_zero(cpumask_bits(mask
), nr_cpumask_bits
);
2799 netif_set_xps_queue(ring
->netdev
, mask
, ring
->queue_index
);
2800 free_cpumask_var(mask
);
2803 /* schedule our worker thread which will take care of
2804 * applying the new filter changes
2806 i40e_service_event_schedule(vsi
->back
);
2810 * i40e_configure_tx_ring - Configure a transmit ring context and rest
2811 * @ring: The Tx ring to configure
2813 * Configure the Tx descriptor ring in the HMC context.
2815 static int i40e_configure_tx_ring(struct i40e_ring
*ring
)
2817 struct i40e_vsi
*vsi
= ring
->vsi
;
2818 u16 pf_q
= vsi
->base_queue
+ ring
->queue_index
;
2819 struct i40e_hw
*hw
= &vsi
->back
->hw
;
2820 struct i40e_hmc_obj_txq tx_ctx
;
2821 i40e_status err
= 0;
2824 /* some ATR related tx ring init */
2825 if (vsi
->back
->flags
& I40E_FLAG_FD_ATR_ENABLED
) {
2826 ring
->atr_sample_rate
= vsi
->back
->atr_sample_rate
;
2827 ring
->atr_count
= 0;
2829 ring
->atr_sample_rate
= 0;
2833 i40e_config_xps_tx_ring(ring
);
2835 /* clear the context structure first */
2836 memset(&tx_ctx
, 0, sizeof(tx_ctx
));
2838 tx_ctx
.new_context
= 1;
2839 tx_ctx
.base
= (ring
->dma
/ 128);
2840 tx_ctx
.qlen
= ring
->count
;
2841 tx_ctx
.fd_ena
= !!(vsi
->back
->flags
& (I40E_FLAG_FD_SB_ENABLED
|
2842 I40E_FLAG_FD_ATR_ENABLED
));
2844 tx_ctx
.fc_ena
= (vsi
->type
== I40E_VSI_FCOE
);
2846 tx_ctx
.timesync_ena
= !!(vsi
->back
->flags
& I40E_FLAG_PTP
);
2847 /* FDIR VSI tx ring can still use RS bit and writebacks */
2848 if (vsi
->type
!= I40E_VSI_FDIR
)
2849 tx_ctx
.head_wb_ena
= 1;
2850 tx_ctx
.head_wb_addr
= ring
->dma
+
2851 (ring
->count
* sizeof(struct i40e_tx_desc
));
2853 /* As part of VSI creation/update, FW allocates certain
2854 * Tx arbitration queue sets for each TC enabled for
2855 * the VSI. The FW returns the handles to these queue
2856 * sets as part of the response buffer to Add VSI,
2857 * Update VSI, etc. AQ commands. It is expected that
2858 * these queue set handles be associated with the Tx
2859 * queues by the driver as part of the TX queue context
2860 * initialization. This has to be done regardless of
2861 * DCB as by default everything is mapped to TC0.
2863 tx_ctx
.rdylist
= le16_to_cpu(vsi
->info
.qs_handle
[ring
->dcb_tc
]);
2864 tx_ctx
.rdylist_act
= 0;
2866 /* clear the context in the HMC */
2867 err
= i40e_clear_lan_tx_queue_context(hw
, pf_q
);
2869 dev_info(&vsi
->back
->pdev
->dev
,
2870 "Failed to clear LAN Tx queue context on Tx ring %d (pf_q %d), error: %d\n",
2871 ring
->queue_index
, pf_q
, err
);
2875 /* set the context in the HMC */
2876 err
= i40e_set_lan_tx_queue_context(hw
, pf_q
, &tx_ctx
);
2878 dev_info(&vsi
->back
->pdev
->dev
,
2879 "Failed to set LAN Tx queue context on Tx ring %d (pf_q %d, error: %d\n",
2880 ring
->queue_index
, pf_q
, err
);
2884 /* Now associate this queue with this PCI function */
2885 if (vsi
->type
== I40E_VSI_VMDQ2
) {
2886 qtx_ctl
= I40E_QTX_CTL_VM_QUEUE
;
2887 qtx_ctl
|= ((vsi
->id
) << I40E_QTX_CTL_VFVM_INDX_SHIFT
) &
2888 I40E_QTX_CTL_VFVM_INDX_MASK
;
2890 qtx_ctl
= I40E_QTX_CTL_PF_QUEUE
;
2893 qtx_ctl
|= ((hw
->pf_id
<< I40E_QTX_CTL_PF_INDX_SHIFT
) &
2894 I40E_QTX_CTL_PF_INDX_MASK
);
2895 wr32(hw
, I40E_QTX_CTL(pf_q
), qtx_ctl
);
2898 /* cache tail off for easier writes later */
2899 ring
->tail
= hw
->hw_addr
+ I40E_QTX_TAIL(pf_q
);
2905 * i40e_configure_rx_ring - Configure a receive ring context
2906 * @ring: The Rx ring to configure
2908 * Configure the Rx descriptor ring in the HMC context.
2910 static int i40e_configure_rx_ring(struct i40e_ring
*ring
)
2912 struct i40e_vsi
*vsi
= ring
->vsi
;
2913 u32 chain_len
= vsi
->back
->hw
.func_caps
.rx_buf_chain_len
;
2914 u16 pf_q
= vsi
->base_queue
+ ring
->queue_index
;
2915 struct i40e_hw
*hw
= &vsi
->back
->hw
;
2916 struct i40e_hmc_obj_rxq rx_ctx
;
2917 i40e_status err
= 0;
2921 /* clear the context structure first */
2922 memset(&rx_ctx
, 0, sizeof(rx_ctx
));
2924 ring
->rx_buf_len
= vsi
->rx_buf_len
;
2926 rx_ctx
.dbuff
= ring
->rx_buf_len
>> I40E_RXQ_CTX_DBUFF_SHIFT
;
2928 rx_ctx
.base
= (ring
->dma
/ 128);
2929 rx_ctx
.qlen
= ring
->count
;
2931 /* use 32 byte descriptors */
2934 /* descriptor type is always zero
2937 rx_ctx
.hsplit_0
= 0;
2939 rx_ctx
.rxmax
= min_t(u16
, vsi
->max_frame
, chain_len
* ring
->rx_buf_len
);
2940 if (hw
->revision_id
== 0)
2941 rx_ctx
.lrxqthresh
= 0;
2943 rx_ctx
.lrxqthresh
= 2;
2944 rx_ctx
.crcstrip
= 1;
2946 /* this controls whether VLAN is stripped from inner headers */
2949 rx_ctx
.fc_ena
= (vsi
->type
== I40E_VSI_FCOE
);
2951 /* set the prefena field to 1 because the manual says to */
2954 /* clear the context in the HMC */
2955 err
= i40e_clear_lan_rx_queue_context(hw
, pf_q
);
2957 dev_info(&vsi
->back
->pdev
->dev
,
2958 "Failed to clear LAN Rx queue context on Rx ring %d (pf_q %d), error: %d\n",
2959 ring
->queue_index
, pf_q
, err
);
2963 /* set the context in the HMC */
2964 err
= i40e_set_lan_rx_queue_context(hw
, pf_q
, &rx_ctx
);
2966 dev_info(&vsi
->back
->pdev
->dev
,
2967 "Failed to set LAN Rx queue context on Rx ring %d (pf_q %d), error: %d\n",
2968 ring
->queue_index
, pf_q
, err
);
2972 /* cache tail for quicker writes, and clear the reg before use */
2973 ring
->tail
= hw
->hw_addr
+ I40E_QRX_TAIL(pf_q
);
2974 writel(0, ring
->tail
);
2976 i40e_alloc_rx_buffers(ring
, I40E_DESC_UNUSED(ring
));
2982 * i40e_vsi_configure_tx - Configure the VSI for Tx
2983 * @vsi: VSI structure describing this set of rings and resources
2985 * Configure the Tx VSI for operation.
2987 static int i40e_vsi_configure_tx(struct i40e_vsi
*vsi
)
2992 for (i
= 0; (i
< vsi
->num_queue_pairs
) && !err
; i
++)
2993 err
= i40e_configure_tx_ring(vsi
->tx_rings
[i
]);
2999 * i40e_vsi_configure_rx - Configure the VSI for Rx
3000 * @vsi: the VSI being configured
3002 * Configure the Rx VSI for operation.
3004 static int i40e_vsi_configure_rx(struct i40e_vsi
*vsi
)
3009 if (vsi
->netdev
&& (vsi
->netdev
->mtu
> ETH_DATA_LEN
))
3010 vsi
->max_frame
= vsi
->netdev
->mtu
+ ETH_HLEN
3011 + ETH_FCS_LEN
+ VLAN_HLEN
;
3013 vsi
->max_frame
= I40E_RXBUFFER_2048
;
3015 vsi
->rx_buf_len
= I40E_RXBUFFER_2048
;
3018 /* setup rx buffer for FCoE */
3019 if ((vsi
->type
== I40E_VSI_FCOE
) &&
3020 (vsi
->back
->flags
& I40E_FLAG_FCOE_ENABLED
)) {
3021 vsi
->rx_buf_len
= I40E_RXBUFFER_3072
;
3022 vsi
->max_frame
= I40E_RXBUFFER_3072
;
3025 #endif /* I40E_FCOE */
3026 /* round up for the chip's needs */
3027 vsi
->rx_buf_len
= ALIGN(vsi
->rx_buf_len
,
3028 BIT_ULL(I40E_RXQ_CTX_DBUFF_SHIFT
));
3030 /* set up individual rings */
3031 for (i
= 0; i
< vsi
->num_queue_pairs
&& !err
; i
++)
3032 err
= i40e_configure_rx_ring(vsi
->rx_rings
[i
]);
3038 * i40e_vsi_config_dcb_rings - Update rings to reflect DCB TC
3039 * @vsi: ptr to the VSI
3041 static void i40e_vsi_config_dcb_rings(struct i40e_vsi
*vsi
)
3043 struct i40e_ring
*tx_ring
, *rx_ring
;
3044 u16 qoffset
, qcount
;
3047 if (!(vsi
->back
->flags
& I40E_FLAG_DCB_ENABLED
)) {
3048 /* Reset the TC information */
3049 for (i
= 0; i
< vsi
->num_queue_pairs
; i
++) {
3050 rx_ring
= vsi
->rx_rings
[i
];
3051 tx_ring
= vsi
->tx_rings
[i
];
3052 rx_ring
->dcb_tc
= 0;
3053 tx_ring
->dcb_tc
= 0;
3057 for (n
= 0; n
< I40E_MAX_TRAFFIC_CLASS
; n
++) {
3058 if (!(vsi
->tc_config
.enabled_tc
& BIT_ULL(n
)))
3061 qoffset
= vsi
->tc_config
.tc_info
[n
].qoffset
;
3062 qcount
= vsi
->tc_config
.tc_info
[n
].qcount
;
3063 for (i
= qoffset
; i
< (qoffset
+ qcount
); i
++) {
3064 rx_ring
= vsi
->rx_rings
[i
];
3065 tx_ring
= vsi
->tx_rings
[i
];
3066 rx_ring
->dcb_tc
= n
;
3067 tx_ring
->dcb_tc
= n
;
3073 * i40e_set_vsi_rx_mode - Call set_rx_mode on a VSI
3074 * @vsi: ptr to the VSI
3076 static void i40e_set_vsi_rx_mode(struct i40e_vsi
*vsi
)
3078 struct i40e_pf
*pf
= vsi
->back
;
3082 i40e_set_rx_mode(vsi
->netdev
);
3084 if (!!(pf
->flags
& I40E_FLAG_PF_MAC
)) {
3085 err
= i40e_macaddr_init(vsi
, pf
->hw
.mac
.addr
);
3087 dev_warn(&pf
->pdev
->dev
,
3088 "could not set up macaddr; err %d\n", err
);
3094 * i40e_fdir_filter_restore - Restore the Sideband Flow Director filters
3095 * @vsi: Pointer to the targeted VSI
3097 * This function replays the hlist on the hw where all the SB Flow Director
3098 * filters were saved.
3100 static void i40e_fdir_filter_restore(struct i40e_vsi
*vsi
)
3102 struct i40e_fdir_filter
*filter
;
3103 struct i40e_pf
*pf
= vsi
->back
;
3104 struct hlist_node
*node
;
3106 if (!(pf
->flags
& I40E_FLAG_FD_SB_ENABLED
))
3109 hlist_for_each_entry_safe(filter
, node
,
3110 &pf
->fdir_filter_list
, fdir_node
) {
3111 i40e_add_del_fdir(vsi
, filter
, true);
3116 * i40e_vsi_configure - Set up the VSI for action
3117 * @vsi: the VSI being configured
3119 static int i40e_vsi_configure(struct i40e_vsi
*vsi
)
3123 i40e_set_vsi_rx_mode(vsi
);
3124 i40e_restore_vlan(vsi
);
3125 i40e_vsi_config_dcb_rings(vsi
);
3126 err
= i40e_vsi_configure_tx(vsi
);
3128 err
= i40e_vsi_configure_rx(vsi
);
3134 * i40e_vsi_configure_msix - MSIX mode Interrupt Config in the HW
3135 * @vsi: the VSI being configured
3137 static void i40e_vsi_configure_msix(struct i40e_vsi
*vsi
)
3139 struct i40e_pf
*pf
= vsi
->back
;
3140 struct i40e_hw
*hw
= &pf
->hw
;
3145 /* The interrupt indexing is offset by 1 in the PFINT_ITRn
3146 * and PFINT_LNKLSTn registers, e.g.:
3147 * PFINT_ITRn[0..n-1] gets msix-1..msix-n (qpair interrupts)
3149 qp
= vsi
->base_queue
;
3150 vector
= vsi
->base_vector
;
3151 for (i
= 0; i
< vsi
->num_q_vectors
; i
++, vector
++) {
3152 struct i40e_q_vector
*q_vector
= vsi
->q_vectors
[i
];
3154 q_vector
->itr_countdown
= ITR_COUNTDOWN_START
;
3155 q_vector
->rx
.itr
= ITR_TO_REG(vsi
->rx_rings
[i
]->rx_itr_setting
);
3156 q_vector
->rx
.latency_range
= I40E_LOW_LATENCY
;
3157 wr32(hw
, I40E_PFINT_ITRN(I40E_RX_ITR
, vector
- 1),
3159 q_vector
->tx
.itr
= ITR_TO_REG(vsi
->tx_rings
[i
]->tx_itr_setting
);
3160 q_vector
->tx
.latency_range
= I40E_LOW_LATENCY
;
3161 wr32(hw
, I40E_PFINT_ITRN(I40E_TX_ITR
, vector
- 1),
3163 wr32(hw
, I40E_PFINT_RATEN(vector
- 1),
3164 INTRL_USEC_TO_REG(vsi
->int_rate_limit
));
3166 /* Linked list for the queuepairs assigned to this vector */
3167 wr32(hw
, I40E_PFINT_LNKLSTN(vector
- 1), qp
);
3168 for (q
= 0; q
< q_vector
->num_ringpairs
; q
++) {
3171 val
= I40E_QINT_RQCTL_CAUSE_ENA_MASK
|
3172 (I40E_RX_ITR
<< I40E_QINT_RQCTL_ITR_INDX_SHIFT
) |
3173 (vector
<< I40E_QINT_RQCTL_MSIX_INDX_SHIFT
) |
3174 (qp
<< I40E_QINT_RQCTL_NEXTQ_INDX_SHIFT
)|
3176 << I40E_QINT_RQCTL_NEXTQ_TYPE_SHIFT
);
3178 wr32(hw
, I40E_QINT_RQCTL(qp
), val
);
3180 val
= I40E_QINT_TQCTL_CAUSE_ENA_MASK
|
3181 (I40E_TX_ITR
<< I40E_QINT_TQCTL_ITR_INDX_SHIFT
) |
3182 (vector
<< I40E_QINT_TQCTL_MSIX_INDX_SHIFT
) |
3183 ((qp
+1) << I40E_QINT_TQCTL_NEXTQ_INDX_SHIFT
)|
3185 << I40E_QINT_TQCTL_NEXTQ_TYPE_SHIFT
);
3187 /* Terminate the linked list */
3188 if (q
== (q_vector
->num_ringpairs
- 1))
3189 val
|= (I40E_QUEUE_END_OF_LIST
3190 << I40E_QINT_TQCTL_NEXTQ_INDX_SHIFT
);
3192 wr32(hw
, I40E_QINT_TQCTL(qp
), val
);
3201 * i40e_enable_misc_int_causes - enable the non-queue interrupts
3202 * @hw: ptr to the hardware info
3204 static void i40e_enable_misc_int_causes(struct i40e_pf
*pf
)
3206 struct i40e_hw
*hw
= &pf
->hw
;
3209 /* clear things first */
3210 wr32(hw
, I40E_PFINT_ICR0_ENA
, 0); /* disable all */
3211 rd32(hw
, I40E_PFINT_ICR0
); /* read to clear */
3213 val
= I40E_PFINT_ICR0_ENA_ECC_ERR_MASK
|
3214 I40E_PFINT_ICR0_ENA_MAL_DETECT_MASK
|
3215 I40E_PFINT_ICR0_ENA_GRST_MASK
|
3216 I40E_PFINT_ICR0_ENA_PCI_EXCEPTION_MASK
|
3217 I40E_PFINT_ICR0_ENA_GPIO_MASK
|
3218 I40E_PFINT_ICR0_ENA_HMC_ERR_MASK
|
3219 I40E_PFINT_ICR0_ENA_VFLR_MASK
|
3220 I40E_PFINT_ICR0_ENA_ADMINQ_MASK
;
3222 if (pf
->flags
& I40E_FLAG_IWARP_ENABLED
)
3223 val
|= I40E_PFINT_ICR0_ENA_PE_CRITERR_MASK
;
3225 if (pf
->flags
& I40E_FLAG_PTP
)
3226 val
|= I40E_PFINT_ICR0_ENA_TIMESYNC_MASK
;
3228 wr32(hw
, I40E_PFINT_ICR0_ENA
, val
);
3230 /* SW_ITR_IDX = 0, but don't change INTENA */
3231 wr32(hw
, I40E_PFINT_DYN_CTL0
, I40E_PFINT_DYN_CTL0_SW_ITR_INDX_MASK
|
3232 I40E_PFINT_DYN_CTL0_INTENA_MSK_MASK
);
3234 /* OTHER_ITR_IDX = 0 */
3235 wr32(hw
, I40E_PFINT_STAT_CTL0
, 0);
3239 * i40e_configure_msi_and_legacy - Legacy mode interrupt config in the HW
3240 * @vsi: the VSI being configured
3242 static void i40e_configure_msi_and_legacy(struct i40e_vsi
*vsi
)
3244 struct i40e_q_vector
*q_vector
= vsi
->q_vectors
[0];
3245 struct i40e_pf
*pf
= vsi
->back
;
3246 struct i40e_hw
*hw
= &pf
->hw
;
3249 /* set the ITR configuration */
3250 q_vector
->itr_countdown
= ITR_COUNTDOWN_START
;
3251 q_vector
->rx
.itr
= ITR_TO_REG(vsi
->rx_rings
[0]->rx_itr_setting
);
3252 q_vector
->rx
.latency_range
= I40E_LOW_LATENCY
;
3253 wr32(hw
, I40E_PFINT_ITR0(I40E_RX_ITR
), q_vector
->rx
.itr
);
3254 q_vector
->tx
.itr
= ITR_TO_REG(vsi
->tx_rings
[0]->tx_itr_setting
);
3255 q_vector
->tx
.latency_range
= I40E_LOW_LATENCY
;
3256 wr32(hw
, I40E_PFINT_ITR0(I40E_TX_ITR
), q_vector
->tx
.itr
);
3258 i40e_enable_misc_int_causes(pf
);
3260 /* FIRSTQ_INDX = 0, FIRSTQ_TYPE = 0 (rx) */
3261 wr32(hw
, I40E_PFINT_LNKLST0
, 0);
3263 /* Associate the queue pair to the vector and enable the queue int */
3264 val
= I40E_QINT_RQCTL_CAUSE_ENA_MASK
|
3265 (I40E_RX_ITR
<< I40E_QINT_RQCTL_ITR_INDX_SHIFT
) |
3266 (I40E_QUEUE_TYPE_TX
<< I40E_QINT_TQCTL_NEXTQ_TYPE_SHIFT
);
3268 wr32(hw
, I40E_QINT_RQCTL(0), val
);
3270 val
= I40E_QINT_TQCTL_CAUSE_ENA_MASK
|
3271 (I40E_TX_ITR
<< I40E_QINT_TQCTL_ITR_INDX_SHIFT
) |
3272 (I40E_QUEUE_END_OF_LIST
<< I40E_QINT_TQCTL_NEXTQ_INDX_SHIFT
);
3274 wr32(hw
, I40E_QINT_TQCTL(0), val
);
3279 * i40e_irq_dynamic_disable_icr0 - Disable default interrupt generation for icr0
3280 * @pf: board private structure
3282 void i40e_irq_dynamic_disable_icr0(struct i40e_pf
*pf
)
3284 struct i40e_hw
*hw
= &pf
->hw
;
3286 wr32(hw
, I40E_PFINT_DYN_CTL0
,
3287 I40E_ITR_NONE
<< I40E_PFINT_DYN_CTLN_ITR_INDX_SHIFT
);
3292 * i40e_irq_dynamic_enable_icr0 - Enable default interrupt generation for icr0
3293 * @pf: board private structure
3294 * @clearpba: true when all pending interrupt events should be cleared
3296 void i40e_irq_dynamic_enable_icr0(struct i40e_pf
*pf
, bool clearpba
)
3298 struct i40e_hw
*hw
= &pf
->hw
;
3301 val
= I40E_PFINT_DYN_CTL0_INTENA_MASK
|
3302 (clearpba
? I40E_PFINT_DYN_CTL0_CLEARPBA_MASK
: 0) |
3303 (I40E_ITR_NONE
<< I40E_PFINT_DYN_CTL0_ITR_INDX_SHIFT
);
3305 wr32(hw
, I40E_PFINT_DYN_CTL0
, val
);
3310 * i40e_msix_clean_rings - MSIX mode Interrupt Handler
3311 * @irq: interrupt number
3312 * @data: pointer to a q_vector
3314 static irqreturn_t
i40e_msix_clean_rings(int irq
, void *data
)
3316 struct i40e_q_vector
*q_vector
= data
;
3318 if (!q_vector
->tx
.ring
&& !q_vector
->rx
.ring
)
3321 napi_schedule_irqoff(&q_vector
->napi
);
3327 * i40e_vsi_request_irq_msix - Initialize MSI-X interrupts
3328 * @vsi: the VSI being configured
3329 * @basename: name for the vector
3331 * Allocates MSI-X vectors and requests interrupts from the kernel.
3333 static int i40e_vsi_request_irq_msix(struct i40e_vsi
*vsi
, char *basename
)
3335 int q_vectors
= vsi
->num_q_vectors
;
3336 struct i40e_pf
*pf
= vsi
->back
;
3337 int base
= vsi
->base_vector
;
3342 for (vector
= 0; vector
< q_vectors
; vector
++) {
3343 struct i40e_q_vector
*q_vector
= vsi
->q_vectors
[vector
];
3345 if (q_vector
->tx
.ring
&& q_vector
->rx
.ring
) {
3346 snprintf(q_vector
->name
, sizeof(q_vector
->name
) - 1,
3347 "%s-%s-%d", basename
, "TxRx", rx_int_idx
++);
3349 } else if (q_vector
->rx
.ring
) {
3350 snprintf(q_vector
->name
, sizeof(q_vector
->name
) - 1,
3351 "%s-%s-%d", basename
, "rx", rx_int_idx
++);
3352 } else if (q_vector
->tx
.ring
) {
3353 snprintf(q_vector
->name
, sizeof(q_vector
->name
) - 1,
3354 "%s-%s-%d", basename
, "tx", tx_int_idx
++);
3356 /* skip this unused q_vector */
3359 err
= request_irq(pf
->msix_entries
[base
+ vector
].vector
,
3365 dev_info(&pf
->pdev
->dev
,
3366 "MSIX request_irq failed, error: %d\n", err
);
3367 goto free_queue_irqs
;
3369 /* assign the mask for this irq */
3370 irq_set_affinity_hint(pf
->msix_entries
[base
+ vector
].vector
,
3371 &q_vector
->affinity_mask
);
3374 vsi
->irqs_ready
= true;
3380 irq_set_affinity_hint(pf
->msix_entries
[base
+ vector
].vector
,
3382 free_irq(pf
->msix_entries
[base
+ vector
].vector
,
3383 &(vsi
->q_vectors
[vector
]));
3389 * i40e_vsi_disable_irq - Mask off queue interrupt generation on the VSI
3390 * @vsi: the VSI being un-configured
3392 static void i40e_vsi_disable_irq(struct i40e_vsi
*vsi
)
3394 struct i40e_pf
*pf
= vsi
->back
;
3395 struct i40e_hw
*hw
= &pf
->hw
;
3396 int base
= vsi
->base_vector
;
3399 for (i
= 0; i
< vsi
->num_queue_pairs
; i
++) {
3400 wr32(hw
, I40E_QINT_TQCTL(vsi
->tx_rings
[i
]->reg_idx
), 0);
3401 wr32(hw
, I40E_QINT_RQCTL(vsi
->rx_rings
[i
]->reg_idx
), 0);
3404 if (pf
->flags
& I40E_FLAG_MSIX_ENABLED
) {
3405 for (i
= vsi
->base_vector
;
3406 i
< (vsi
->num_q_vectors
+ vsi
->base_vector
); i
++)
3407 wr32(hw
, I40E_PFINT_DYN_CTLN(i
- 1), 0);
3410 for (i
= 0; i
< vsi
->num_q_vectors
; i
++)
3411 synchronize_irq(pf
->msix_entries
[i
+ base
].vector
);
3413 /* Legacy and MSI mode - this stops all interrupt handling */
3414 wr32(hw
, I40E_PFINT_ICR0_ENA
, 0);
3415 wr32(hw
, I40E_PFINT_DYN_CTL0
, 0);
3417 synchronize_irq(pf
->pdev
->irq
);
3422 * i40e_vsi_enable_irq - Enable IRQ for the given VSI
3423 * @vsi: the VSI being configured
3425 static int i40e_vsi_enable_irq(struct i40e_vsi
*vsi
)
3427 struct i40e_pf
*pf
= vsi
->back
;
3430 if (pf
->flags
& I40E_FLAG_MSIX_ENABLED
) {
3431 for (i
= 0; i
< vsi
->num_q_vectors
; i
++)
3432 i40e_irq_dynamic_enable(vsi
, i
);
3434 i40e_irq_dynamic_enable_icr0(pf
, true);
3437 i40e_flush(&pf
->hw
);
3442 * i40e_stop_misc_vector - Stop the vector that handles non-queue events
3443 * @pf: board private structure
3445 static void i40e_stop_misc_vector(struct i40e_pf
*pf
)
3448 wr32(&pf
->hw
, I40E_PFINT_ICR0_ENA
, 0);
3449 i40e_flush(&pf
->hw
);
3453 * i40e_intr - MSI/Legacy and non-queue interrupt handler
3454 * @irq: interrupt number
3455 * @data: pointer to a q_vector
3457 * This is the handler used for all MSI/Legacy interrupts, and deals
3458 * with both queue and non-queue interrupts. This is also used in
3459 * MSIX mode to handle the non-queue interrupts.
3461 static irqreturn_t
i40e_intr(int irq
, void *data
)
3463 struct i40e_pf
*pf
= (struct i40e_pf
*)data
;
3464 struct i40e_hw
*hw
= &pf
->hw
;
3465 irqreturn_t ret
= IRQ_NONE
;
3466 u32 icr0
, icr0_remaining
;
3469 icr0
= rd32(hw
, I40E_PFINT_ICR0
);
3470 ena_mask
= rd32(hw
, I40E_PFINT_ICR0_ENA
);
3472 /* if sharing a legacy IRQ, we might get called w/o an intr pending */
3473 if ((icr0
& I40E_PFINT_ICR0_INTEVENT_MASK
) == 0)
3476 /* if interrupt but no bits showing, must be SWINT */
3477 if (((icr0
& ~I40E_PFINT_ICR0_INTEVENT_MASK
) == 0) ||
3478 (icr0
& I40E_PFINT_ICR0_SWINT_MASK
))
3481 if ((pf
->flags
& I40E_FLAG_IWARP_ENABLED
) &&
3482 (ena_mask
& I40E_PFINT_ICR0_ENA_PE_CRITERR_MASK
)) {
3483 ena_mask
&= ~I40E_PFINT_ICR0_ENA_PE_CRITERR_MASK
;
3484 icr0
&= ~I40E_PFINT_ICR0_ENA_PE_CRITERR_MASK
;
3485 dev_info(&pf
->pdev
->dev
, "cleared PE_CRITERR\n");
3488 /* only q0 is used in MSI/Legacy mode, and none are used in MSIX */
3489 if (icr0
& I40E_PFINT_ICR0_QUEUE_0_MASK
) {
3490 struct i40e_vsi
*vsi
= pf
->vsi
[pf
->lan_vsi
];
3491 struct i40e_q_vector
*q_vector
= vsi
->q_vectors
[0];
3493 /* We do not have a way to disarm Queue causes while leaving
3494 * interrupt enabled for all other causes, ideally
3495 * interrupt should be disabled while we are in NAPI but
3496 * this is not a performance path and napi_schedule()
3497 * can deal with rescheduling.
3499 if (!test_bit(__I40E_DOWN
, &pf
->state
))
3500 napi_schedule_irqoff(&q_vector
->napi
);
3503 if (icr0
& I40E_PFINT_ICR0_ADMINQ_MASK
) {
3504 ena_mask
&= ~I40E_PFINT_ICR0_ENA_ADMINQ_MASK
;
3505 set_bit(__I40E_ADMINQ_EVENT_PENDING
, &pf
->state
);
3506 i40e_debug(&pf
->hw
, I40E_DEBUG_NVM
, "AdminQ event\n");
3509 if (icr0
& I40E_PFINT_ICR0_MAL_DETECT_MASK
) {
3510 ena_mask
&= ~I40E_PFINT_ICR0_ENA_MAL_DETECT_MASK
;
3511 set_bit(__I40E_MDD_EVENT_PENDING
, &pf
->state
);
3514 if (icr0
& I40E_PFINT_ICR0_VFLR_MASK
) {
3515 ena_mask
&= ~I40E_PFINT_ICR0_ENA_VFLR_MASK
;
3516 set_bit(__I40E_VFLR_EVENT_PENDING
, &pf
->state
);
3519 if (icr0
& I40E_PFINT_ICR0_GRST_MASK
) {
3520 if (!test_bit(__I40E_RESET_RECOVERY_PENDING
, &pf
->state
))
3521 set_bit(__I40E_RESET_INTR_RECEIVED
, &pf
->state
);
3522 ena_mask
&= ~I40E_PFINT_ICR0_ENA_GRST_MASK
;
3523 val
= rd32(hw
, I40E_GLGEN_RSTAT
);
3524 val
= (val
& I40E_GLGEN_RSTAT_RESET_TYPE_MASK
)
3525 >> I40E_GLGEN_RSTAT_RESET_TYPE_SHIFT
;
3526 if (val
== I40E_RESET_CORER
) {
3528 } else if (val
== I40E_RESET_GLOBR
) {
3530 } else if (val
== I40E_RESET_EMPR
) {
3532 set_bit(__I40E_EMP_RESET_INTR_RECEIVED
, &pf
->state
);
3536 if (icr0
& I40E_PFINT_ICR0_HMC_ERR_MASK
) {
3537 icr0
&= ~I40E_PFINT_ICR0_HMC_ERR_MASK
;
3538 dev_info(&pf
->pdev
->dev
, "HMC error interrupt\n");
3539 dev_info(&pf
->pdev
->dev
, "HMC error info 0x%x, HMC error data 0x%x\n",
3540 rd32(hw
, I40E_PFHMC_ERRORINFO
),
3541 rd32(hw
, I40E_PFHMC_ERRORDATA
));
3544 if (icr0
& I40E_PFINT_ICR0_TIMESYNC_MASK
) {
3545 u32 prttsyn_stat
= rd32(hw
, I40E_PRTTSYN_STAT_0
);
3547 if (prttsyn_stat
& I40E_PRTTSYN_STAT_0_TXTIME_MASK
) {
3548 icr0
&= ~I40E_PFINT_ICR0_ENA_TIMESYNC_MASK
;
3549 i40e_ptp_tx_hwtstamp(pf
);
3553 /* If a critical error is pending we have no choice but to reset the
3555 * Report and mask out any remaining unexpected interrupts.
3557 icr0_remaining
= icr0
& ena_mask
;
3558 if (icr0_remaining
) {
3559 dev_info(&pf
->pdev
->dev
, "unhandled interrupt icr0=0x%08x\n",
3561 if ((icr0_remaining
& I40E_PFINT_ICR0_PE_CRITERR_MASK
) ||
3562 (icr0_remaining
& I40E_PFINT_ICR0_PCI_EXCEPTION_MASK
) ||
3563 (icr0_remaining
& I40E_PFINT_ICR0_ECC_ERR_MASK
)) {
3564 dev_info(&pf
->pdev
->dev
, "device will be reset\n");
3565 set_bit(__I40E_PF_RESET_REQUESTED
, &pf
->state
);
3566 i40e_service_event_schedule(pf
);
3568 ena_mask
&= ~icr0_remaining
;
3573 /* re-enable interrupt causes */
3574 wr32(hw
, I40E_PFINT_ICR0_ENA
, ena_mask
);
3575 if (!test_bit(__I40E_DOWN
, &pf
->state
)) {
3576 i40e_service_event_schedule(pf
);
3577 i40e_irq_dynamic_enable_icr0(pf
, false);
3584 * i40e_clean_fdir_tx_irq - Reclaim resources after transmit completes
3585 * @tx_ring: tx ring to clean
3586 * @budget: how many cleans we're allowed
3588 * Returns true if there's any budget left (e.g. the clean is finished)
3590 static bool i40e_clean_fdir_tx_irq(struct i40e_ring
*tx_ring
, int budget
)
3592 struct i40e_vsi
*vsi
= tx_ring
->vsi
;
3593 u16 i
= tx_ring
->next_to_clean
;
3594 struct i40e_tx_buffer
*tx_buf
;
3595 struct i40e_tx_desc
*tx_desc
;
3597 tx_buf
= &tx_ring
->tx_bi
[i
];
3598 tx_desc
= I40E_TX_DESC(tx_ring
, i
);
3599 i
-= tx_ring
->count
;
3602 struct i40e_tx_desc
*eop_desc
= tx_buf
->next_to_watch
;
3604 /* if next_to_watch is not set then there is no work pending */
3608 /* prevent any other reads prior to eop_desc */
3609 read_barrier_depends();
3611 /* if the descriptor isn't done, no work yet to do */
3612 if (!(eop_desc
->cmd_type_offset_bsz
&
3613 cpu_to_le64(I40E_TX_DESC_DTYPE_DESC_DONE
)))
3616 /* clear next_to_watch to prevent false hangs */
3617 tx_buf
->next_to_watch
= NULL
;
3619 tx_desc
->buffer_addr
= 0;
3620 tx_desc
->cmd_type_offset_bsz
= 0;
3621 /* move past filter desc */
3626 i
-= tx_ring
->count
;
3627 tx_buf
= tx_ring
->tx_bi
;
3628 tx_desc
= I40E_TX_DESC(tx_ring
, 0);
3630 /* unmap skb header data */
3631 dma_unmap_single(tx_ring
->dev
,
3632 dma_unmap_addr(tx_buf
, dma
),
3633 dma_unmap_len(tx_buf
, len
),
3635 if (tx_buf
->tx_flags
& I40E_TX_FLAGS_FD_SB
)
3636 kfree(tx_buf
->raw_buf
);
3638 tx_buf
->raw_buf
= NULL
;
3639 tx_buf
->tx_flags
= 0;
3640 tx_buf
->next_to_watch
= NULL
;
3641 dma_unmap_len_set(tx_buf
, len
, 0);
3642 tx_desc
->buffer_addr
= 0;
3643 tx_desc
->cmd_type_offset_bsz
= 0;
3645 /* move us past the eop_desc for start of next FD desc */
3650 i
-= tx_ring
->count
;
3651 tx_buf
= tx_ring
->tx_bi
;
3652 tx_desc
= I40E_TX_DESC(tx_ring
, 0);
3655 /* update budget accounting */
3657 } while (likely(budget
));
3659 i
+= tx_ring
->count
;
3660 tx_ring
->next_to_clean
= i
;
3662 if (vsi
->back
->flags
& I40E_FLAG_MSIX_ENABLED
)
3663 i40e_irq_dynamic_enable(vsi
, tx_ring
->q_vector
->v_idx
);
3669 * i40e_fdir_clean_ring - Interrupt Handler for FDIR SB ring
3670 * @irq: interrupt number
3671 * @data: pointer to a q_vector
3673 static irqreturn_t
i40e_fdir_clean_ring(int irq
, void *data
)
3675 struct i40e_q_vector
*q_vector
= data
;
3676 struct i40e_vsi
*vsi
;
3678 if (!q_vector
->tx
.ring
)
3681 vsi
= q_vector
->tx
.ring
->vsi
;
3682 i40e_clean_fdir_tx_irq(q_vector
->tx
.ring
, vsi
->work_limit
);
3688 * i40e_map_vector_to_qp - Assigns the queue pair to the vector
3689 * @vsi: the VSI being configured
3690 * @v_idx: vector index
3691 * @qp_idx: queue pair index
3693 static void i40e_map_vector_to_qp(struct i40e_vsi
*vsi
, int v_idx
, int qp_idx
)
3695 struct i40e_q_vector
*q_vector
= vsi
->q_vectors
[v_idx
];
3696 struct i40e_ring
*tx_ring
= vsi
->tx_rings
[qp_idx
];
3697 struct i40e_ring
*rx_ring
= vsi
->rx_rings
[qp_idx
];
3699 tx_ring
->q_vector
= q_vector
;
3700 tx_ring
->next
= q_vector
->tx
.ring
;
3701 q_vector
->tx
.ring
= tx_ring
;
3702 q_vector
->tx
.count
++;
3704 rx_ring
->q_vector
= q_vector
;
3705 rx_ring
->next
= q_vector
->rx
.ring
;
3706 q_vector
->rx
.ring
= rx_ring
;
3707 q_vector
->rx
.count
++;
3711 * i40e_vsi_map_rings_to_vectors - Maps descriptor rings to vectors
3712 * @vsi: the VSI being configured
3714 * This function maps descriptor rings to the queue-specific vectors
3715 * we were allotted through the MSI-X enabling code. Ideally, we'd have
3716 * one vector per queue pair, but on a constrained vector budget, we
3717 * group the queue pairs as "efficiently" as possible.
3719 static void i40e_vsi_map_rings_to_vectors(struct i40e_vsi
*vsi
)
3721 int qp_remaining
= vsi
->num_queue_pairs
;
3722 int q_vectors
= vsi
->num_q_vectors
;
3727 /* If we don't have enough vectors for a 1-to-1 mapping, we'll have to
3728 * group them so there are multiple queues per vector.
3729 * It is also important to go through all the vectors available to be
3730 * sure that if we don't use all the vectors, that the remaining vectors
3731 * are cleared. This is especially important when decreasing the
3732 * number of queues in use.
3734 for (; v_start
< q_vectors
; v_start
++) {
3735 struct i40e_q_vector
*q_vector
= vsi
->q_vectors
[v_start
];
3737 num_ringpairs
= DIV_ROUND_UP(qp_remaining
, q_vectors
- v_start
);
3739 q_vector
->num_ringpairs
= num_ringpairs
;
3741 q_vector
->rx
.count
= 0;
3742 q_vector
->tx
.count
= 0;
3743 q_vector
->rx
.ring
= NULL
;
3744 q_vector
->tx
.ring
= NULL
;
3746 while (num_ringpairs
--) {
3747 i40e_map_vector_to_qp(vsi
, v_start
, qp_idx
);
3755 * i40e_vsi_request_irq - Request IRQ from the OS
3756 * @vsi: the VSI being configured
3757 * @basename: name for the vector
3759 static int i40e_vsi_request_irq(struct i40e_vsi
*vsi
, char *basename
)
3761 struct i40e_pf
*pf
= vsi
->back
;
3764 if (pf
->flags
& I40E_FLAG_MSIX_ENABLED
)
3765 err
= i40e_vsi_request_irq_msix(vsi
, basename
);
3766 else if (pf
->flags
& I40E_FLAG_MSI_ENABLED
)
3767 err
= request_irq(pf
->pdev
->irq
, i40e_intr
, 0,
3770 err
= request_irq(pf
->pdev
->irq
, i40e_intr
, IRQF_SHARED
,
3774 dev_info(&pf
->pdev
->dev
, "request_irq failed, Error %d\n", err
);
3779 #ifdef CONFIG_NET_POLL_CONTROLLER
3781 * i40e_netpoll - A Polling 'interrupt' handler
3782 * @netdev: network interface device structure
3784 * This is used by netconsole to send skbs without having to re-enable
3785 * interrupts. It's not called while the normal interrupt routine is executing.
3788 void i40e_netpoll(struct net_device
*netdev
)
3790 static void i40e_netpoll(struct net_device
*netdev
)
3793 struct i40e_netdev_priv
*np
= netdev_priv(netdev
);
3794 struct i40e_vsi
*vsi
= np
->vsi
;
3795 struct i40e_pf
*pf
= vsi
->back
;
3798 /* if interface is down do nothing */
3799 if (test_bit(__I40E_DOWN
, &vsi
->state
))
3802 if (pf
->flags
& I40E_FLAG_MSIX_ENABLED
) {
3803 for (i
= 0; i
< vsi
->num_q_vectors
; i
++)
3804 i40e_msix_clean_rings(0, vsi
->q_vectors
[i
]);
3806 i40e_intr(pf
->pdev
->irq
, netdev
);
3812 * i40e_pf_txq_wait - Wait for a PF's Tx queue to be enabled or disabled
3813 * @pf: the PF being configured
3814 * @pf_q: the PF queue
3815 * @enable: enable or disable state of the queue
3817 * This routine will wait for the given Tx queue of the PF to reach the
3818 * enabled or disabled state.
3819 * Returns -ETIMEDOUT in case of failing to reach the requested state after
3820 * multiple retries; else will return 0 in case of success.
3822 static int i40e_pf_txq_wait(struct i40e_pf
*pf
, int pf_q
, bool enable
)
3827 for (i
= 0; i
< I40E_QUEUE_WAIT_RETRY_LIMIT
; i
++) {
3828 tx_reg
= rd32(&pf
->hw
, I40E_QTX_ENA(pf_q
));
3829 if (enable
== !!(tx_reg
& I40E_QTX_ENA_QENA_STAT_MASK
))
3832 usleep_range(10, 20);
3834 if (i
>= I40E_QUEUE_WAIT_RETRY_LIMIT
)
3841 * i40e_vsi_control_tx - Start or stop a VSI's rings
3842 * @vsi: the VSI being configured
3843 * @enable: start or stop the rings
3845 static int i40e_vsi_control_tx(struct i40e_vsi
*vsi
, bool enable
)
3847 struct i40e_pf
*pf
= vsi
->back
;
3848 struct i40e_hw
*hw
= &pf
->hw
;
3849 int i
, j
, pf_q
, ret
= 0;
3852 pf_q
= vsi
->base_queue
;
3853 for (i
= 0; i
< vsi
->num_queue_pairs
; i
++, pf_q
++) {
3855 /* warn the TX unit of coming changes */
3856 i40e_pre_tx_queue_cfg(&pf
->hw
, pf_q
, enable
);
3858 usleep_range(10, 20);
3860 for (j
= 0; j
< 50; j
++) {
3861 tx_reg
= rd32(hw
, I40E_QTX_ENA(pf_q
));
3862 if (((tx_reg
>> I40E_QTX_ENA_QENA_REQ_SHIFT
) & 1) ==
3863 ((tx_reg
>> I40E_QTX_ENA_QENA_STAT_SHIFT
) & 1))
3865 usleep_range(1000, 2000);
3867 /* Skip if the queue is already in the requested state */
3868 if (enable
== !!(tx_reg
& I40E_QTX_ENA_QENA_STAT_MASK
))
3871 /* turn on/off the queue */
3873 wr32(hw
, I40E_QTX_HEAD(pf_q
), 0);
3874 tx_reg
|= I40E_QTX_ENA_QENA_REQ_MASK
;
3876 tx_reg
&= ~I40E_QTX_ENA_QENA_REQ_MASK
;
3879 wr32(hw
, I40E_QTX_ENA(pf_q
), tx_reg
);
3880 /* No waiting for the Tx queue to disable */
3881 if (!enable
&& test_bit(__I40E_PORT_TX_SUSPENDED
, &pf
->state
))
3884 /* wait for the change to finish */
3885 ret
= i40e_pf_txq_wait(pf
, pf_q
, enable
);
3887 dev_info(&pf
->pdev
->dev
,
3888 "VSI seid %d Tx ring %d %sable timeout\n",
3889 vsi
->seid
, pf_q
, (enable
? "en" : "dis"));
3894 if (hw
->revision_id
== 0)
3900 * i40e_pf_rxq_wait - Wait for a PF's Rx queue to be enabled or disabled
3901 * @pf: the PF being configured
3902 * @pf_q: the PF queue
3903 * @enable: enable or disable state of the queue
3905 * This routine will wait for the given Rx queue of the PF to reach the
3906 * enabled or disabled state.
3907 * Returns -ETIMEDOUT in case of failing to reach the requested state after
3908 * multiple retries; else will return 0 in case of success.
3910 static int i40e_pf_rxq_wait(struct i40e_pf
*pf
, int pf_q
, bool enable
)
3915 for (i
= 0; i
< I40E_QUEUE_WAIT_RETRY_LIMIT
; i
++) {
3916 rx_reg
= rd32(&pf
->hw
, I40E_QRX_ENA(pf_q
));
3917 if (enable
== !!(rx_reg
& I40E_QRX_ENA_QENA_STAT_MASK
))
3920 usleep_range(10, 20);
3922 if (i
>= I40E_QUEUE_WAIT_RETRY_LIMIT
)
3929 * i40e_vsi_control_rx - Start or stop a VSI's rings
3930 * @vsi: the VSI being configured
3931 * @enable: start or stop the rings
3933 static int i40e_vsi_control_rx(struct i40e_vsi
*vsi
, bool enable
)
3935 struct i40e_pf
*pf
= vsi
->back
;
3936 struct i40e_hw
*hw
= &pf
->hw
;
3937 int i
, j
, pf_q
, ret
= 0;
3940 pf_q
= vsi
->base_queue
;
3941 for (i
= 0; i
< vsi
->num_queue_pairs
; i
++, pf_q
++) {
3942 for (j
= 0; j
< 50; j
++) {
3943 rx_reg
= rd32(hw
, I40E_QRX_ENA(pf_q
));
3944 if (((rx_reg
>> I40E_QRX_ENA_QENA_REQ_SHIFT
) & 1) ==
3945 ((rx_reg
>> I40E_QRX_ENA_QENA_STAT_SHIFT
) & 1))
3947 usleep_range(1000, 2000);
3950 /* Skip if the queue is already in the requested state */
3951 if (enable
== !!(rx_reg
& I40E_QRX_ENA_QENA_STAT_MASK
))
3954 /* turn on/off the queue */
3956 rx_reg
|= I40E_QRX_ENA_QENA_REQ_MASK
;
3958 rx_reg
&= ~I40E_QRX_ENA_QENA_REQ_MASK
;
3959 wr32(hw
, I40E_QRX_ENA(pf_q
), rx_reg
);
3960 /* No waiting for the Tx queue to disable */
3961 if (!enable
&& test_bit(__I40E_PORT_TX_SUSPENDED
, &pf
->state
))
3964 /* wait for the change to finish */
3965 ret
= i40e_pf_rxq_wait(pf
, pf_q
, enable
);
3967 dev_info(&pf
->pdev
->dev
,
3968 "VSI seid %d Rx ring %d %sable timeout\n",
3969 vsi
->seid
, pf_q
, (enable
? "en" : "dis"));
3978 * i40e_vsi_control_rings - Start or stop a VSI's rings
3979 * @vsi: the VSI being configured
3980 * @enable: start or stop the rings
3982 int i40e_vsi_control_rings(struct i40e_vsi
*vsi
, bool request
)
3986 /* do rx first for enable and last for disable */
3988 ret
= i40e_vsi_control_rx(vsi
, request
);
3991 ret
= i40e_vsi_control_tx(vsi
, request
);
3993 /* Ignore return value, we need to shutdown whatever we can */
3994 i40e_vsi_control_tx(vsi
, request
);
3995 i40e_vsi_control_rx(vsi
, request
);
4002 * i40e_vsi_free_irq - Free the irq association with the OS
4003 * @vsi: the VSI being configured
4005 static void i40e_vsi_free_irq(struct i40e_vsi
*vsi
)
4007 struct i40e_pf
*pf
= vsi
->back
;
4008 struct i40e_hw
*hw
= &pf
->hw
;
4009 int base
= vsi
->base_vector
;
4013 if (pf
->flags
& I40E_FLAG_MSIX_ENABLED
) {
4014 if (!vsi
->q_vectors
)
4017 if (!vsi
->irqs_ready
)
4020 vsi
->irqs_ready
= false;
4021 for (i
= 0; i
< vsi
->num_q_vectors
; i
++) {
4022 u16 vector
= i
+ base
;
4024 /* free only the irqs that were actually requested */
4025 if (!vsi
->q_vectors
[i
] ||
4026 !vsi
->q_vectors
[i
]->num_ringpairs
)
4029 /* clear the affinity_mask in the IRQ descriptor */
4030 irq_set_affinity_hint(pf
->msix_entries
[vector
].vector
,
4032 synchronize_irq(pf
->msix_entries
[vector
].vector
);
4033 free_irq(pf
->msix_entries
[vector
].vector
,
4036 /* Tear down the interrupt queue link list
4038 * We know that they come in pairs and always
4039 * the Rx first, then the Tx. To clear the
4040 * link list, stick the EOL value into the
4041 * next_q field of the registers.
4043 val
= rd32(hw
, I40E_PFINT_LNKLSTN(vector
- 1));
4044 qp
= (val
& I40E_PFINT_LNKLSTN_FIRSTQ_INDX_MASK
)
4045 >> I40E_PFINT_LNKLSTN_FIRSTQ_INDX_SHIFT
;
4046 val
|= I40E_QUEUE_END_OF_LIST
4047 << I40E_PFINT_LNKLSTN_FIRSTQ_INDX_SHIFT
;
4048 wr32(hw
, I40E_PFINT_LNKLSTN(vector
- 1), val
);
4050 while (qp
!= I40E_QUEUE_END_OF_LIST
) {
4053 val
= rd32(hw
, I40E_QINT_RQCTL(qp
));
4055 val
&= ~(I40E_QINT_RQCTL_MSIX_INDX_MASK
|
4056 I40E_QINT_RQCTL_MSIX0_INDX_MASK
|
4057 I40E_QINT_RQCTL_CAUSE_ENA_MASK
|
4058 I40E_QINT_RQCTL_INTEVENT_MASK
);
4060 val
|= (I40E_QINT_RQCTL_ITR_INDX_MASK
|
4061 I40E_QINT_RQCTL_NEXTQ_INDX_MASK
);
4063 wr32(hw
, I40E_QINT_RQCTL(qp
), val
);
4065 val
= rd32(hw
, I40E_QINT_TQCTL(qp
));
4067 next
= (val
& I40E_QINT_TQCTL_NEXTQ_INDX_MASK
)
4068 >> I40E_QINT_TQCTL_NEXTQ_INDX_SHIFT
;
4070 val
&= ~(I40E_QINT_TQCTL_MSIX_INDX_MASK
|
4071 I40E_QINT_TQCTL_MSIX0_INDX_MASK
|
4072 I40E_QINT_TQCTL_CAUSE_ENA_MASK
|
4073 I40E_QINT_TQCTL_INTEVENT_MASK
);
4075 val
|= (I40E_QINT_TQCTL_ITR_INDX_MASK
|
4076 I40E_QINT_TQCTL_NEXTQ_INDX_MASK
);
4078 wr32(hw
, I40E_QINT_TQCTL(qp
), val
);
4083 free_irq(pf
->pdev
->irq
, pf
);
4085 val
= rd32(hw
, I40E_PFINT_LNKLST0
);
4086 qp
= (val
& I40E_PFINT_LNKLSTN_FIRSTQ_INDX_MASK
)
4087 >> I40E_PFINT_LNKLSTN_FIRSTQ_INDX_SHIFT
;
4088 val
|= I40E_QUEUE_END_OF_LIST
4089 << I40E_PFINT_LNKLST0_FIRSTQ_INDX_SHIFT
;
4090 wr32(hw
, I40E_PFINT_LNKLST0
, val
);
4092 val
= rd32(hw
, I40E_QINT_RQCTL(qp
));
4093 val
&= ~(I40E_QINT_RQCTL_MSIX_INDX_MASK
|
4094 I40E_QINT_RQCTL_MSIX0_INDX_MASK
|
4095 I40E_QINT_RQCTL_CAUSE_ENA_MASK
|
4096 I40E_QINT_RQCTL_INTEVENT_MASK
);
4098 val
|= (I40E_QINT_RQCTL_ITR_INDX_MASK
|
4099 I40E_QINT_RQCTL_NEXTQ_INDX_MASK
);
4101 wr32(hw
, I40E_QINT_RQCTL(qp
), val
);
4103 val
= rd32(hw
, I40E_QINT_TQCTL(qp
));
4105 val
&= ~(I40E_QINT_TQCTL_MSIX_INDX_MASK
|
4106 I40E_QINT_TQCTL_MSIX0_INDX_MASK
|
4107 I40E_QINT_TQCTL_CAUSE_ENA_MASK
|
4108 I40E_QINT_TQCTL_INTEVENT_MASK
);
4110 val
|= (I40E_QINT_TQCTL_ITR_INDX_MASK
|
4111 I40E_QINT_TQCTL_NEXTQ_INDX_MASK
);
4113 wr32(hw
, I40E_QINT_TQCTL(qp
), val
);
4118 * i40e_free_q_vector - Free memory allocated for specific interrupt vector
4119 * @vsi: the VSI being configured
4120 * @v_idx: Index of vector to be freed
4122 * This function frees the memory allocated to the q_vector. In addition if
4123 * NAPI is enabled it will delete any references to the NAPI struct prior
4124 * to freeing the q_vector.
4126 static void i40e_free_q_vector(struct i40e_vsi
*vsi
, int v_idx
)
4128 struct i40e_q_vector
*q_vector
= vsi
->q_vectors
[v_idx
];
4129 struct i40e_ring
*ring
;
4134 /* disassociate q_vector from rings */
4135 i40e_for_each_ring(ring
, q_vector
->tx
)
4136 ring
->q_vector
= NULL
;
4138 i40e_for_each_ring(ring
, q_vector
->rx
)
4139 ring
->q_vector
= NULL
;
4141 /* only VSI w/ an associated netdev is set up w/ NAPI */
4143 netif_napi_del(&q_vector
->napi
);
4145 vsi
->q_vectors
[v_idx
] = NULL
;
4147 kfree_rcu(q_vector
, rcu
);
4151 * i40e_vsi_free_q_vectors - Free memory allocated for interrupt vectors
4152 * @vsi: the VSI being un-configured
4154 * This frees the memory allocated to the q_vectors and
4155 * deletes references to the NAPI struct.
4157 static void i40e_vsi_free_q_vectors(struct i40e_vsi
*vsi
)
4161 for (v_idx
= 0; v_idx
< vsi
->num_q_vectors
; v_idx
++)
4162 i40e_free_q_vector(vsi
, v_idx
);
4166 * i40e_reset_interrupt_capability - Disable interrupt setup in OS
4167 * @pf: board private structure
4169 static void i40e_reset_interrupt_capability(struct i40e_pf
*pf
)
4171 /* If we're in Legacy mode, the interrupt was cleaned in vsi_close */
4172 if (pf
->flags
& I40E_FLAG_MSIX_ENABLED
) {
4173 pci_disable_msix(pf
->pdev
);
4174 kfree(pf
->msix_entries
);
4175 pf
->msix_entries
= NULL
;
4176 kfree(pf
->irq_pile
);
4177 pf
->irq_pile
= NULL
;
4178 } else if (pf
->flags
& I40E_FLAG_MSI_ENABLED
) {
4179 pci_disable_msi(pf
->pdev
);
4181 pf
->flags
&= ~(I40E_FLAG_MSIX_ENABLED
| I40E_FLAG_MSI_ENABLED
);
4185 * i40e_clear_interrupt_scheme - Clear the current interrupt scheme settings
4186 * @pf: board private structure
4188 * We go through and clear interrupt specific resources and reset the structure
4189 * to pre-load conditions
4191 static void i40e_clear_interrupt_scheme(struct i40e_pf
*pf
)
4195 i40e_stop_misc_vector(pf
);
4196 if (pf
->flags
& I40E_FLAG_MSIX_ENABLED
&& pf
->msix_entries
) {
4197 synchronize_irq(pf
->msix_entries
[0].vector
);
4198 free_irq(pf
->msix_entries
[0].vector
, pf
);
4201 i40e_put_lump(pf
->irq_pile
, pf
->iwarp_base_vector
,
4202 I40E_IWARP_IRQ_PILE_ID
);
4204 i40e_put_lump(pf
->irq_pile
, 0, I40E_PILE_VALID_BIT
-1);
4205 for (i
= 0; i
< pf
->num_alloc_vsi
; i
++)
4207 i40e_vsi_free_q_vectors(pf
->vsi
[i
]);
4208 i40e_reset_interrupt_capability(pf
);
4212 * i40e_napi_enable_all - Enable NAPI for all q_vectors in the VSI
4213 * @vsi: the VSI being configured
4215 static void i40e_napi_enable_all(struct i40e_vsi
*vsi
)
4222 for (q_idx
= 0; q_idx
< vsi
->num_q_vectors
; q_idx
++)
4223 napi_enable(&vsi
->q_vectors
[q_idx
]->napi
);
4227 * i40e_napi_disable_all - Disable NAPI for all q_vectors in the VSI
4228 * @vsi: the VSI being configured
4230 static void i40e_napi_disable_all(struct i40e_vsi
*vsi
)
4237 for (q_idx
= 0; q_idx
< vsi
->num_q_vectors
; q_idx
++)
4238 napi_disable(&vsi
->q_vectors
[q_idx
]->napi
);
4242 * i40e_vsi_close - Shut down a VSI
4243 * @vsi: the vsi to be quelled
4245 static void i40e_vsi_close(struct i40e_vsi
*vsi
)
4249 if (!test_and_set_bit(__I40E_DOWN
, &vsi
->state
))
4251 i40e_vsi_free_irq(vsi
);
4252 i40e_vsi_free_tx_resources(vsi
);
4253 i40e_vsi_free_rx_resources(vsi
);
4254 vsi
->current_netdev_flags
= 0;
4255 if (test_bit(__I40E_RESET_RECOVERY_PENDING
, &vsi
->back
->state
))
4257 i40e_notify_client_of_netdev_close(vsi
, reset
);
4261 * i40e_quiesce_vsi - Pause a given VSI
4262 * @vsi: the VSI being paused
4264 static void i40e_quiesce_vsi(struct i40e_vsi
*vsi
)
4266 if (test_bit(__I40E_DOWN
, &vsi
->state
))
4269 /* No need to disable FCoE VSI when Tx suspended */
4270 if ((test_bit(__I40E_PORT_TX_SUSPENDED
, &vsi
->back
->state
)) &&
4271 vsi
->type
== I40E_VSI_FCOE
) {
4272 dev_dbg(&vsi
->back
->pdev
->dev
,
4273 "VSI seid %d skipping FCoE VSI disable\n", vsi
->seid
);
4277 set_bit(__I40E_NEEDS_RESTART
, &vsi
->state
);
4278 if (vsi
->netdev
&& netif_running(vsi
->netdev
))
4279 vsi
->netdev
->netdev_ops
->ndo_stop(vsi
->netdev
);
4281 i40e_vsi_close(vsi
);
4285 * i40e_unquiesce_vsi - Resume a given VSI
4286 * @vsi: the VSI being resumed
4288 static void i40e_unquiesce_vsi(struct i40e_vsi
*vsi
)
4290 if (!test_bit(__I40E_NEEDS_RESTART
, &vsi
->state
))
4293 clear_bit(__I40E_NEEDS_RESTART
, &vsi
->state
);
4294 if (vsi
->netdev
&& netif_running(vsi
->netdev
))
4295 vsi
->netdev
->netdev_ops
->ndo_open(vsi
->netdev
);
4297 i40e_vsi_open(vsi
); /* this clears the DOWN bit */
4301 * i40e_pf_quiesce_all_vsi - Pause all VSIs on a PF
4304 static void i40e_pf_quiesce_all_vsi(struct i40e_pf
*pf
)
4308 for (v
= 0; v
< pf
->num_alloc_vsi
; v
++) {
4310 i40e_quiesce_vsi(pf
->vsi
[v
]);
4315 * i40e_pf_unquiesce_all_vsi - Resume all VSIs on a PF
4318 static void i40e_pf_unquiesce_all_vsi(struct i40e_pf
*pf
)
4322 for (v
= 0; v
< pf
->num_alloc_vsi
; v
++) {
4324 i40e_unquiesce_vsi(pf
->vsi
[v
]);
4328 #ifdef CONFIG_I40E_DCB
4330 * i40e_vsi_wait_queues_disabled - Wait for VSI's queues to be disabled
4331 * @vsi: the VSI being configured
4333 * This function waits for the given VSI's queues to be disabled.
4335 static int i40e_vsi_wait_queues_disabled(struct i40e_vsi
*vsi
)
4337 struct i40e_pf
*pf
= vsi
->back
;
4340 pf_q
= vsi
->base_queue
;
4341 for (i
= 0; i
< vsi
->num_queue_pairs
; i
++, pf_q
++) {
4342 /* Check and wait for the disable status of the queue */
4343 ret
= i40e_pf_txq_wait(pf
, pf_q
, false);
4345 dev_info(&pf
->pdev
->dev
,
4346 "VSI seid %d Tx ring %d disable timeout\n",
4352 pf_q
= vsi
->base_queue
;
4353 for (i
= 0; i
< vsi
->num_queue_pairs
; i
++, pf_q
++) {
4354 /* Check and wait for the disable status of the queue */
4355 ret
= i40e_pf_rxq_wait(pf
, pf_q
, false);
4357 dev_info(&pf
->pdev
->dev
,
4358 "VSI seid %d Rx ring %d disable timeout\n",
4368 * i40e_pf_wait_queues_disabled - Wait for all queues of PF VSIs to be disabled
4371 * This function waits for the queues to be in disabled state for all the
4372 * VSIs that are managed by this PF.
4374 static int i40e_pf_wait_queues_disabled(struct i40e_pf
*pf
)
4378 for (v
= 0; v
< pf
->hw
.func_caps
.num_vsis
; v
++) {
4379 /* No need to wait for FCoE VSI queues */
4380 if (pf
->vsi
[v
] && pf
->vsi
[v
]->type
!= I40E_VSI_FCOE
) {
4381 ret
= i40e_vsi_wait_queues_disabled(pf
->vsi
[v
]);
4393 * i40e_detect_recover_hung_queue - Function to detect and recover hung_queue
4394 * @q_idx: TX queue number
4395 * @vsi: Pointer to VSI struct
4397 * This function checks specified queue for given VSI. Detects hung condition.
4398 * Sets hung bit since it is two step process. Before next run of service task
4399 * if napi_poll runs, it reset 'hung' bit for respective q_vector. If not,
4400 * hung condition remain unchanged and during subsequent run, this function
4401 * issues SW interrupt to recover from hung condition.
4403 static void i40e_detect_recover_hung_queue(int q_idx
, struct i40e_vsi
*vsi
)
4405 struct i40e_ring
*tx_ring
= NULL
;
4407 u32 head
, val
, tx_pending_hw
;
4412 /* now that we have an index, find the tx_ring struct */
4413 for (i
= 0; i
< vsi
->num_queue_pairs
; i
++) {
4414 if (vsi
->tx_rings
[i
] && vsi
->tx_rings
[i
]->desc
) {
4415 if (q_idx
== vsi
->tx_rings
[i
]->queue_index
) {
4416 tx_ring
= vsi
->tx_rings
[i
];
4425 /* Read interrupt register */
4426 if (pf
->flags
& I40E_FLAG_MSIX_ENABLED
)
4428 I40E_PFINT_DYN_CTLN(tx_ring
->q_vector
->v_idx
+
4429 tx_ring
->vsi
->base_vector
- 1));
4431 val
= rd32(&pf
->hw
, I40E_PFINT_DYN_CTL0
);
4433 head
= i40e_get_head(tx_ring
);
4435 tx_pending_hw
= i40e_get_tx_pending(tx_ring
, false);
4437 /* HW is done executing descriptors, updated HEAD write back,
4438 * but SW hasn't processed those descriptors. If interrupt is
4439 * not generated from this point ON, it could result into
4440 * dev_watchdog detecting timeout on those netdev_queue,
4441 * hence proactively trigger SW interrupt.
4443 if (tx_pending_hw
&& (!(val
& I40E_PFINT_DYN_CTLN_INTENA_MASK
))) {
4444 /* NAPI Poll didn't run and clear since it was set */
4445 if (test_and_clear_bit(I40E_Q_VECTOR_HUNG_DETECT
,
4446 &tx_ring
->q_vector
->hung_detected
)) {
4447 netdev_info(vsi
->netdev
, "VSI_seid %d, Hung TX queue %d, tx_pending_hw: %d, NTC:0x%x, HWB: 0x%x, NTU: 0x%x, TAIL: 0x%x\n",
4448 vsi
->seid
, q_idx
, tx_pending_hw
,
4449 tx_ring
->next_to_clean
, head
,
4450 tx_ring
->next_to_use
,
4451 readl(tx_ring
->tail
));
4452 netdev_info(vsi
->netdev
, "VSI_seid %d, Issuing force_wb for TX queue %d, Interrupt Reg: 0x%x\n",
4453 vsi
->seid
, q_idx
, val
);
4454 i40e_force_wb(vsi
, tx_ring
->q_vector
);
4456 /* First Chance - detected possible hung */
4457 set_bit(I40E_Q_VECTOR_HUNG_DETECT
,
4458 &tx_ring
->q_vector
->hung_detected
);
4462 /* This is the case where we have interrupts missing,
4463 * so the tx_pending in HW will most likely be 0, but we
4464 * will have tx_pending in SW since the WB happened but the
4465 * interrupt got lost.
4467 if ((!tx_pending_hw
) && i40e_get_tx_pending(tx_ring
, true) &&
4468 (!(val
& I40E_PFINT_DYN_CTLN_INTENA_MASK
))) {
4469 if (napi_reschedule(&tx_ring
->q_vector
->napi
))
4470 tx_ring
->tx_stats
.tx_lost_interrupt
++;
4475 * i40e_detect_recover_hung - Function to detect and recover hung_queues
4476 * @pf: pointer to PF struct
4478 * LAN VSI has netdev and netdev has TX queues. This function is to check
4479 * each of those TX queues if they are hung, trigger recovery by issuing
4482 static void i40e_detect_recover_hung(struct i40e_pf
*pf
)
4484 struct net_device
*netdev
;
4485 struct i40e_vsi
*vsi
;
4488 /* Only for LAN VSI */
4489 vsi
= pf
->vsi
[pf
->lan_vsi
];
4494 /* Make sure, VSI state is not DOWN/RECOVERY_PENDING */
4495 if (test_bit(__I40E_DOWN
, &vsi
->back
->state
) ||
4496 test_bit(__I40E_RESET_RECOVERY_PENDING
, &vsi
->back
->state
))
4499 /* Make sure type is MAIN VSI */
4500 if (vsi
->type
!= I40E_VSI_MAIN
)
4503 netdev
= vsi
->netdev
;
4507 /* Bail out if netif_carrier is not OK */
4508 if (!netif_carrier_ok(netdev
))
4511 /* Go thru' TX queues for netdev */
4512 for (i
= 0; i
< netdev
->num_tx_queues
; i
++) {
4513 struct netdev_queue
*q
;
4515 q
= netdev_get_tx_queue(netdev
, i
);
4517 i40e_detect_recover_hung_queue(i
, vsi
);
4522 * i40e_get_iscsi_tc_map - Return TC map for iSCSI APP
4523 * @pf: pointer to PF
4525 * Get TC map for ISCSI PF type that will include iSCSI TC
4528 static u8
i40e_get_iscsi_tc_map(struct i40e_pf
*pf
)
4530 struct i40e_dcb_app_priority_table app
;
4531 struct i40e_hw
*hw
= &pf
->hw
;
4532 u8 enabled_tc
= 1; /* TC0 is always enabled */
4534 /* Get the iSCSI APP TLV */
4535 struct i40e_dcbx_config
*dcbcfg
= &hw
->local_dcbx_config
;
4537 for (i
= 0; i
< dcbcfg
->numapps
; i
++) {
4538 app
= dcbcfg
->app
[i
];
4539 if (app
.selector
== I40E_APP_SEL_TCPIP
&&
4540 app
.protocolid
== I40E_APP_PROTOID_ISCSI
) {
4541 tc
= dcbcfg
->etscfg
.prioritytable
[app
.priority
];
4542 enabled_tc
|= BIT(tc
);
4551 * i40e_dcb_get_num_tc - Get the number of TCs from DCBx config
4552 * @dcbcfg: the corresponding DCBx configuration structure
4554 * Return the number of TCs from given DCBx configuration
4556 static u8
i40e_dcb_get_num_tc(struct i40e_dcbx_config
*dcbcfg
)
4558 int i
, tc_unused
= 0;
4562 /* Scan the ETS Config Priority Table to find
4563 * traffic class enabled for a given priority
4564 * and create a bitmask of enabled TCs
4566 for (i
= 0; i
< I40E_MAX_USER_PRIORITY
; i
++)
4567 num_tc
|= BIT(dcbcfg
->etscfg
.prioritytable
[i
]);
4569 /* Now scan the bitmask to check for
4570 * contiguous TCs starting with TC0
4572 for (i
= 0; i
< I40E_MAX_TRAFFIC_CLASS
; i
++) {
4573 if (num_tc
& BIT(i
)) {
4577 pr_err("Non-contiguous TC - Disabling DCB\n");
4585 /* There is always at least TC0 */
4593 * i40e_dcb_get_enabled_tc - Get enabled traffic classes
4594 * @dcbcfg: the corresponding DCBx configuration structure
4596 * Query the current DCB configuration and return the number of
4597 * traffic classes enabled from the given DCBX config
4599 static u8
i40e_dcb_get_enabled_tc(struct i40e_dcbx_config
*dcbcfg
)
4601 u8 num_tc
= i40e_dcb_get_num_tc(dcbcfg
);
4605 for (i
= 0; i
< num_tc
; i
++)
4606 enabled_tc
|= BIT(i
);
4612 * i40e_pf_get_num_tc - Get enabled traffic classes for PF
4613 * @pf: PF being queried
4615 * Return number of traffic classes enabled for the given PF
4617 static u8
i40e_pf_get_num_tc(struct i40e_pf
*pf
)
4619 struct i40e_hw
*hw
= &pf
->hw
;
4620 u8 i
, enabled_tc
= 1;
4622 struct i40e_dcbx_config
*dcbcfg
= &hw
->local_dcbx_config
;
4624 /* If DCB is not enabled then always in single TC */
4625 if (!(pf
->flags
& I40E_FLAG_DCB_ENABLED
))
4628 /* SFP mode will be enabled for all TCs on port */
4629 if (!(pf
->flags
& I40E_FLAG_MFP_ENABLED
))
4630 return i40e_dcb_get_num_tc(dcbcfg
);
4632 /* MFP mode return count of enabled TCs for this PF */
4633 if (pf
->hw
.func_caps
.iscsi
)
4634 enabled_tc
= i40e_get_iscsi_tc_map(pf
);
4636 return 1; /* Only TC0 */
4638 for (i
= 0; i
< I40E_MAX_TRAFFIC_CLASS
; i
++) {
4639 if (enabled_tc
& BIT(i
))
4646 * i40e_pf_get_default_tc - Get bitmap for first enabled TC
4647 * @pf: PF being queried
4649 * Return a bitmap for first enabled traffic class for this PF.
4651 static u8
i40e_pf_get_default_tc(struct i40e_pf
*pf
)
4653 u8 enabled_tc
= pf
->hw
.func_caps
.enabled_tcmap
;
4657 return 0x1; /* TC0 */
4659 /* Find the first enabled TC */
4660 for (i
= 0; i
< I40E_MAX_TRAFFIC_CLASS
; i
++) {
4661 if (enabled_tc
& BIT(i
))
4669 * i40e_pf_get_pf_tc_map - Get bitmap for enabled traffic classes
4670 * @pf: PF being queried
4672 * Return a bitmap for enabled traffic classes for this PF.
4674 static u8
i40e_pf_get_tc_map(struct i40e_pf
*pf
)
4676 /* If DCB is not enabled for this PF then just return default TC */
4677 if (!(pf
->flags
& I40E_FLAG_DCB_ENABLED
))
4678 return i40e_pf_get_default_tc(pf
);
4680 /* SFP mode we want PF to be enabled for all TCs */
4681 if (!(pf
->flags
& I40E_FLAG_MFP_ENABLED
))
4682 return i40e_dcb_get_enabled_tc(&pf
->hw
.local_dcbx_config
);
4684 /* MFP enabled and iSCSI PF type */
4685 if (pf
->hw
.func_caps
.iscsi
)
4686 return i40e_get_iscsi_tc_map(pf
);
4688 return i40e_pf_get_default_tc(pf
);
4692 * i40e_vsi_get_bw_info - Query VSI BW Information
4693 * @vsi: the VSI being queried
4695 * Returns 0 on success, negative value on failure
4697 static int i40e_vsi_get_bw_info(struct i40e_vsi
*vsi
)
4699 struct i40e_aqc_query_vsi_ets_sla_config_resp bw_ets_config
= {0};
4700 struct i40e_aqc_query_vsi_bw_config_resp bw_config
= {0};
4701 struct i40e_pf
*pf
= vsi
->back
;
4702 struct i40e_hw
*hw
= &pf
->hw
;
4707 /* Get the VSI level BW configuration */
4708 ret
= i40e_aq_query_vsi_bw_config(hw
, vsi
->seid
, &bw_config
, NULL
);
4710 dev_info(&pf
->pdev
->dev
,
4711 "couldn't get PF vsi bw config, err %s aq_err %s\n",
4712 i40e_stat_str(&pf
->hw
, ret
),
4713 i40e_aq_str(&pf
->hw
, pf
->hw
.aq
.asq_last_status
));
4717 /* Get the VSI level BW configuration per TC */
4718 ret
= i40e_aq_query_vsi_ets_sla_config(hw
, vsi
->seid
, &bw_ets_config
,
4721 dev_info(&pf
->pdev
->dev
,
4722 "couldn't get PF vsi ets bw config, err %s aq_err %s\n",
4723 i40e_stat_str(&pf
->hw
, ret
),
4724 i40e_aq_str(&pf
->hw
, pf
->hw
.aq
.asq_last_status
));
4728 if (bw_config
.tc_valid_bits
!= bw_ets_config
.tc_valid_bits
) {
4729 dev_info(&pf
->pdev
->dev
,
4730 "Enabled TCs mismatch from querying VSI BW info 0x%08x 0x%08x\n",
4731 bw_config
.tc_valid_bits
,
4732 bw_ets_config
.tc_valid_bits
);
4733 /* Still continuing */
4736 vsi
->bw_limit
= le16_to_cpu(bw_config
.port_bw_limit
);
4737 vsi
->bw_max_quanta
= bw_config
.max_bw
;
4738 tc_bw_max
= le16_to_cpu(bw_ets_config
.tc_bw_max
[0]) |
4739 (le16_to_cpu(bw_ets_config
.tc_bw_max
[1]) << 16);
4740 for (i
= 0; i
< I40E_MAX_TRAFFIC_CLASS
; i
++) {
4741 vsi
->bw_ets_share_credits
[i
] = bw_ets_config
.share_credits
[i
];
4742 vsi
->bw_ets_limit_credits
[i
] =
4743 le16_to_cpu(bw_ets_config
.credits
[i
]);
4744 /* 3 bits out of 4 for each TC */
4745 vsi
->bw_ets_max_quanta
[i
] = (u8
)((tc_bw_max
>> (i
*4)) & 0x7);
4752 * i40e_vsi_configure_bw_alloc - Configure VSI BW allocation per TC
4753 * @vsi: the VSI being configured
4754 * @enabled_tc: TC bitmap
4755 * @bw_credits: BW shared credits per TC
4757 * Returns 0 on success, negative value on failure
4759 static int i40e_vsi_configure_bw_alloc(struct i40e_vsi
*vsi
, u8 enabled_tc
,
4762 struct i40e_aqc_configure_vsi_tc_bw_data bw_data
;
4766 bw_data
.tc_valid_bits
= enabled_tc
;
4767 for (i
= 0; i
< I40E_MAX_TRAFFIC_CLASS
; i
++)
4768 bw_data
.tc_bw_credits
[i
] = bw_share
[i
];
4770 ret
= i40e_aq_config_vsi_tc_bw(&vsi
->back
->hw
, vsi
->seid
, &bw_data
,
4773 dev_info(&vsi
->back
->pdev
->dev
,
4774 "AQ command Config VSI BW allocation per TC failed = %d\n",
4775 vsi
->back
->hw
.aq
.asq_last_status
);
4779 for (i
= 0; i
< I40E_MAX_TRAFFIC_CLASS
; i
++)
4780 vsi
->info
.qs_handle
[i
] = bw_data
.qs_handles
[i
];
4786 * i40e_vsi_config_netdev_tc - Setup the netdev TC configuration
4787 * @vsi: the VSI being configured
4788 * @enabled_tc: TC map to be enabled
4791 static void i40e_vsi_config_netdev_tc(struct i40e_vsi
*vsi
, u8 enabled_tc
)
4793 struct net_device
*netdev
= vsi
->netdev
;
4794 struct i40e_pf
*pf
= vsi
->back
;
4795 struct i40e_hw
*hw
= &pf
->hw
;
4798 struct i40e_dcbx_config
*dcbcfg
= &hw
->local_dcbx_config
;
4804 netdev_reset_tc(netdev
);
4808 /* Set up actual enabled TCs on the VSI */
4809 if (netdev_set_num_tc(netdev
, vsi
->tc_config
.numtc
))
4812 /* set per TC queues for the VSI */
4813 for (i
= 0; i
< I40E_MAX_TRAFFIC_CLASS
; i
++) {
4814 /* Only set TC queues for enabled tcs
4816 * e.g. For a VSI that has TC0 and TC3 enabled the
4817 * enabled_tc bitmap would be 0x00001001; the driver
4818 * will set the numtc for netdev as 2 that will be
4819 * referenced by the netdev layer as TC 0 and 1.
4821 if (vsi
->tc_config
.enabled_tc
& BIT(i
))
4822 netdev_set_tc_queue(netdev
,
4823 vsi
->tc_config
.tc_info
[i
].netdev_tc
,
4824 vsi
->tc_config
.tc_info
[i
].qcount
,
4825 vsi
->tc_config
.tc_info
[i
].qoffset
);
4828 /* Assign UP2TC map for the VSI */
4829 for (i
= 0; i
< I40E_MAX_USER_PRIORITY
; i
++) {
4830 /* Get the actual TC# for the UP */
4831 u8 ets_tc
= dcbcfg
->etscfg
.prioritytable
[i
];
4832 /* Get the mapped netdev TC# for the UP */
4833 netdev_tc
= vsi
->tc_config
.tc_info
[ets_tc
].netdev_tc
;
4834 netdev_set_prio_tc_map(netdev
, i
, netdev_tc
);
4839 * i40e_vsi_update_queue_map - Update our copy of VSi info with new queue map
4840 * @vsi: the VSI being configured
4841 * @ctxt: the ctxt buffer returned from AQ VSI update param command
4843 static void i40e_vsi_update_queue_map(struct i40e_vsi
*vsi
,
4844 struct i40e_vsi_context
*ctxt
)
4846 /* copy just the sections touched not the entire info
4847 * since not all sections are valid as returned by
4850 vsi
->info
.mapping_flags
= ctxt
->info
.mapping_flags
;
4851 memcpy(&vsi
->info
.queue_mapping
,
4852 &ctxt
->info
.queue_mapping
, sizeof(vsi
->info
.queue_mapping
));
4853 memcpy(&vsi
->info
.tc_mapping
, ctxt
->info
.tc_mapping
,
4854 sizeof(vsi
->info
.tc_mapping
));
4858 * i40e_vsi_config_tc - Configure VSI Tx Scheduler for given TC map
4859 * @vsi: VSI to be configured
4860 * @enabled_tc: TC bitmap
4862 * This configures a particular VSI for TCs that are mapped to the
4863 * given TC bitmap. It uses default bandwidth share for TCs across
4864 * VSIs to configure TC for a particular VSI.
4867 * It is expected that the VSI queues have been quisced before calling
4870 static int i40e_vsi_config_tc(struct i40e_vsi
*vsi
, u8 enabled_tc
)
4872 u8 bw_share
[I40E_MAX_TRAFFIC_CLASS
] = {0};
4873 struct i40e_vsi_context ctxt
;
4877 /* Check if enabled_tc is same as existing or new TCs */
4878 if (vsi
->tc_config
.enabled_tc
== enabled_tc
)
4881 /* Enable ETS TCs with equal BW Share for now across all VSIs */
4882 for (i
= 0; i
< I40E_MAX_TRAFFIC_CLASS
; i
++) {
4883 if (enabled_tc
& BIT(i
))
4887 ret
= i40e_vsi_configure_bw_alloc(vsi
, enabled_tc
, bw_share
);
4889 dev_info(&vsi
->back
->pdev
->dev
,
4890 "Failed configuring TC map %d for VSI %d\n",
4891 enabled_tc
, vsi
->seid
);
4895 /* Update Queue Pairs Mapping for currently enabled UPs */
4896 ctxt
.seid
= vsi
->seid
;
4897 ctxt
.pf_num
= vsi
->back
->hw
.pf_id
;
4899 ctxt
.uplink_seid
= vsi
->uplink_seid
;
4900 ctxt
.info
= vsi
->info
;
4901 i40e_vsi_setup_queue_map(vsi
, &ctxt
, enabled_tc
, false);
4903 if (vsi
->back
->flags
& I40E_FLAG_IWARP_ENABLED
) {
4904 ctxt
.info
.valid_sections
|=
4905 cpu_to_le16(I40E_AQ_VSI_PROP_QUEUE_OPT_VALID
);
4906 ctxt
.info
.queueing_opt_flags
|= I40E_AQ_VSI_QUE_OPT_TCP_ENA
;
4909 /* Update the VSI after updating the VSI queue-mapping information */
4910 ret
= i40e_aq_update_vsi_params(&vsi
->back
->hw
, &ctxt
, NULL
);
4912 dev_info(&vsi
->back
->pdev
->dev
,
4913 "Update vsi tc config failed, err %s aq_err %s\n",
4914 i40e_stat_str(&vsi
->back
->hw
, ret
),
4915 i40e_aq_str(&vsi
->back
->hw
,
4916 vsi
->back
->hw
.aq
.asq_last_status
));
4919 /* update the local VSI info with updated queue map */
4920 i40e_vsi_update_queue_map(vsi
, &ctxt
);
4921 vsi
->info
.valid_sections
= 0;
4923 /* Update current VSI BW information */
4924 ret
= i40e_vsi_get_bw_info(vsi
);
4926 dev_info(&vsi
->back
->pdev
->dev
,
4927 "Failed updating vsi bw info, err %s aq_err %s\n",
4928 i40e_stat_str(&vsi
->back
->hw
, ret
),
4929 i40e_aq_str(&vsi
->back
->hw
,
4930 vsi
->back
->hw
.aq
.asq_last_status
));
4934 /* Update the netdev TC setup */
4935 i40e_vsi_config_netdev_tc(vsi
, enabled_tc
);
4941 * i40e_veb_config_tc - Configure TCs for given VEB
4943 * @enabled_tc: TC bitmap
4945 * Configures given TC bitmap for VEB (switching) element
4947 int i40e_veb_config_tc(struct i40e_veb
*veb
, u8 enabled_tc
)
4949 struct i40e_aqc_configure_switching_comp_bw_config_data bw_data
= {0};
4950 struct i40e_pf
*pf
= veb
->pf
;
4954 /* No TCs or already enabled TCs just return */
4955 if (!enabled_tc
|| veb
->enabled_tc
== enabled_tc
)
4958 bw_data
.tc_valid_bits
= enabled_tc
;
4959 /* bw_data.absolute_credits is not set (relative) */
4961 /* Enable ETS TCs with equal BW Share for now */
4962 for (i
= 0; i
< I40E_MAX_TRAFFIC_CLASS
; i
++) {
4963 if (enabled_tc
& BIT(i
))
4964 bw_data
.tc_bw_share_credits
[i
] = 1;
4967 ret
= i40e_aq_config_switch_comp_bw_config(&pf
->hw
, veb
->seid
,
4970 dev_info(&pf
->pdev
->dev
,
4971 "VEB bw config failed, err %s aq_err %s\n",
4972 i40e_stat_str(&pf
->hw
, ret
),
4973 i40e_aq_str(&pf
->hw
, pf
->hw
.aq
.asq_last_status
));
4977 /* Update the BW information */
4978 ret
= i40e_veb_get_bw_info(veb
);
4980 dev_info(&pf
->pdev
->dev
,
4981 "Failed getting veb bw config, err %s aq_err %s\n",
4982 i40e_stat_str(&pf
->hw
, ret
),
4983 i40e_aq_str(&pf
->hw
, pf
->hw
.aq
.asq_last_status
));
4990 #ifdef CONFIG_I40E_DCB
4992 * i40e_dcb_reconfigure - Reconfigure all VEBs and VSIs
4995 * Reconfigure VEB/VSIs on a given PF; it is assumed that
4996 * the caller would've quiesce all the VSIs before calling
4999 static void i40e_dcb_reconfigure(struct i40e_pf
*pf
)
5005 /* Enable the TCs available on PF to all VEBs */
5006 tc_map
= i40e_pf_get_tc_map(pf
);
5007 for (v
= 0; v
< I40E_MAX_VEB
; v
++) {
5010 ret
= i40e_veb_config_tc(pf
->veb
[v
], tc_map
);
5012 dev_info(&pf
->pdev
->dev
,
5013 "Failed configuring TC for VEB seid=%d\n",
5015 /* Will try to configure as many components */
5019 /* Update each VSI */
5020 for (v
= 0; v
< pf
->num_alloc_vsi
; v
++) {
5024 /* - Enable all TCs for the LAN VSI
5026 * - For FCoE VSI only enable the TC configured
5027 * as per the APP TLV
5029 * - For all others keep them at TC0 for now
5031 if (v
== pf
->lan_vsi
)
5032 tc_map
= i40e_pf_get_tc_map(pf
);
5034 tc_map
= i40e_pf_get_default_tc(pf
);
5036 if (pf
->vsi
[v
]->type
== I40E_VSI_FCOE
)
5037 tc_map
= i40e_get_fcoe_tc_map(pf
);
5038 #endif /* #ifdef I40E_FCOE */
5040 ret
= i40e_vsi_config_tc(pf
->vsi
[v
], tc_map
);
5042 dev_info(&pf
->pdev
->dev
,
5043 "Failed configuring TC for VSI seid=%d\n",
5045 /* Will try to configure as many components */
5047 /* Re-configure VSI vectors based on updated TC map */
5048 i40e_vsi_map_rings_to_vectors(pf
->vsi
[v
]);
5049 if (pf
->vsi
[v
]->netdev
)
5050 i40e_dcbnl_set_all(pf
->vsi
[v
]);
5056 * i40e_resume_port_tx - Resume port Tx
5059 * Resume a port's Tx and issue a PF reset in case of failure to
5062 static int i40e_resume_port_tx(struct i40e_pf
*pf
)
5064 struct i40e_hw
*hw
= &pf
->hw
;
5067 ret
= i40e_aq_resume_port_tx(hw
, NULL
);
5069 dev_info(&pf
->pdev
->dev
,
5070 "Resume Port Tx failed, err %s aq_err %s\n",
5071 i40e_stat_str(&pf
->hw
, ret
),
5072 i40e_aq_str(&pf
->hw
, pf
->hw
.aq
.asq_last_status
));
5073 /* Schedule PF reset to recover */
5074 set_bit(__I40E_PF_RESET_REQUESTED
, &pf
->state
);
5075 i40e_service_event_schedule(pf
);
5082 * i40e_init_pf_dcb - Initialize DCB configuration
5083 * @pf: PF being configured
5085 * Query the current DCB configuration and cache it
5086 * in the hardware structure
5088 static int i40e_init_pf_dcb(struct i40e_pf
*pf
)
5090 struct i40e_hw
*hw
= &pf
->hw
;
5093 /* Do not enable DCB for SW1 and SW2 images even if the FW is capable */
5094 if (pf
->flags
& I40E_FLAG_NO_DCB_SUPPORT
)
5097 /* Get the initial DCB configuration */
5098 err
= i40e_init_dcb(hw
);
5100 /* Device/Function is not DCBX capable */
5101 if ((!hw
->func_caps
.dcb
) ||
5102 (hw
->dcbx_status
== I40E_DCBX_STATUS_DISABLED
)) {
5103 dev_info(&pf
->pdev
->dev
,
5104 "DCBX offload is not supported or is disabled for this PF.\n");
5106 if (pf
->flags
& I40E_FLAG_MFP_ENABLED
)
5110 /* When status is not DISABLED then DCBX in FW */
5111 pf
->dcbx_cap
= DCB_CAP_DCBX_LLD_MANAGED
|
5112 DCB_CAP_DCBX_VER_IEEE
;
5114 pf
->flags
|= I40E_FLAG_DCB_CAPABLE
;
5115 /* Enable DCB tagging only when more than one TC
5116 * or explicitly disable if only one TC
5118 if (i40e_dcb_get_num_tc(&hw
->local_dcbx_config
) > 1)
5119 pf
->flags
|= I40E_FLAG_DCB_ENABLED
;
5121 pf
->flags
&= ~I40E_FLAG_DCB_ENABLED
;
5122 dev_dbg(&pf
->pdev
->dev
,
5123 "DCBX offload is supported for this PF.\n");
5126 dev_info(&pf
->pdev
->dev
,
5127 "Query for DCB configuration failed, err %s aq_err %s\n",
5128 i40e_stat_str(&pf
->hw
, err
),
5129 i40e_aq_str(&pf
->hw
, pf
->hw
.aq
.asq_last_status
));
5135 #endif /* CONFIG_I40E_DCB */
5136 #define SPEED_SIZE 14
5139 * i40e_print_link_message - print link up or down
5140 * @vsi: the VSI for which link needs a message
5142 void i40e_print_link_message(struct i40e_vsi
*vsi
, bool isup
)
5144 char *speed
= "Unknown";
5145 char *fc
= "Unknown";
5147 if (vsi
->current_isup
== isup
)
5149 vsi
->current_isup
= isup
;
5151 netdev_info(vsi
->netdev
, "NIC Link is Down\n");
5155 /* Warn user if link speed on NPAR enabled partition is not at
5158 if (vsi
->back
->hw
.func_caps
.npar_enable
&&
5159 (vsi
->back
->hw
.phy
.link_info
.link_speed
== I40E_LINK_SPEED_1GB
||
5160 vsi
->back
->hw
.phy
.link_info
.link_speed
== I40E_LINK_SPEED_100MB
))
5161 netdev_warn(vsi
->netdev
,
5162 "The partition detected link speed that is less than 10Gbps\n");
5164 switch (vsi
->back
->hw
.phy
.link_info
.link_speed
) {
5165 case I40E_LINK_SPEED_40GB
:
5168 case I40E_LINK_SPEED_20GB
:
5171 case I40E_LINK_SPEED_10GB
:
5174 case I40E_LINK_SPEED_1GB
:
5177 case I40E_LINK_SPEED_100MB
:
5184 switch (vsi
->back
->hw
.fc
.current_mode
) {
5188 case I40E_FC_TX_PAUSE
:
5191 case I40E_FC_RX_PAUSE
:
5199 netdev_info(vsi
->netdev
, "NIC Link is Up %sbps Full Duplex, Flow Control: %s\n",
5204 * i40e_up_complete - Finish the last steps of bringing up a connection
5205 * @vsi: the VSI being configured
5207 static int i40e_up_complete(struct i40e_vsi
*vsi
)
5209 struct i40e_pf
*pf
= vsi
->back
;
5212 if (pf
->flags
& I40E_FLAG_MSIX_ENABLED
)
5213 i40e_vsi_configure_msix(vsi
);
5215 i40e_configure_msi_and_legacy(vsi
);
5218 err
= i40e_vsi_control_rings(vsi
, true);
5222 clear_bit(__I40E_DOWN
, &vsi
->state
);
5223 i40e_napi_enable_all(vsi
);
5224 i40e_vsi_enable_irq(vsi
);
5226 if ((pf
->hw
.phy
.link_info
.link_info
& I40E_AQ_LINK_UP
) &&
5228 i40e_print_link_message(vsi
, true);
5229 netif_tx_start_all_queues(vsi
->netdev
);
5230 netif_carrier_on(vsi
->netdev
);
5231 } else if (vsi
->netdev
) {
5232 i40e_print_link_message(vsi
, false);
5233 /* need to check for qualified module here*/
5234 if ((pf
->hw
.phy
.link_info
.link_info
&
5235 I40E_AQ_MEDIA_AVAILABLE
) &&
5236 (!(pf
->hw
.phy
.link_info
.an_info
&
5237 I40E_AQ_QUALIFIED_MODULE
)))
5238 netdev_err(vsi
->netdev
,
5239 "the driver failed to link because an unqualified module was detected.");
5242 /* replay FDIR SB filters */
5243 if (vsi
->type
== I40E_VSI_FDIR
) {
5244 /* reset fd counters */
5245 pf
->fd_add_err
= pf
->fd_atr_cnt
= 0;
5246 if (pf
->fd_tcp_rule
> 0) {
5247 pf
->flags
&= ~I40E_FLAG_FD_ATR_ENABLED
;
5248 if (I40E_DEBUG_FD
& pf
->hw
.debug_mask
)
5249 dev_info(&pf
->pdev
->dev
, "Forcing ATR off, sideband rules for TCP/IPv4 exist\n");
5250 pf
->fd_tcp_rule
= 0;
5252 i40e_fdir_filter_restore(vsi
);
5255 /* On the next run of the service_task, notify any clients of the new
5258 pf
->flags
|= I40E_FLAG_SERVICE_CLIENT_REQUESTED
;
5259 i40e_service_event_schedule(pf
);
5265 * i40e_vsi_reinit_locked - Reset the VSI
5266 * @vsi: the VSI being configured
5268 * Rebuild the ring structs after some configuration
5269 * has changed, e.g. MTU size.
5271 static void i40e_vsi_reinit_locked(struct i40e_vsi
*vsi
)
5273 struct i40e_pf
*pf
= vsi
->back
;
5275 WARN_ON(in_interrupt());
5276 while (test_and_set_bit(__I40E_CONFIG_BUSY
, &pf
->state
))
5277 usleep_range(1000, 2000);
5281 clear_bit(__I40E_CONFIG_BUSY
, &pf
->state
);
5285 * i40e_up - Bring the connection back up after being down
5286 * @vsi: the VSI being configured
5288 int i40e_up(struct i40e_vsi
*vsi
)
5292 err
= i40e_vsi_configure(vsi
);
5294 err
= i40e_up_complete(vsi
);
5300 * i40e_down - Shutdown the connection processing
5301 * @vsi: the VSI being stopped
5303 void i40e_down(struct i40e_vsi
*vsi
)
5307 /* It is assumed that the caller of this function
5308 * sets the vsi->state __I40E_DOWN bit.
5311 netif_carrier_off(vsi
->netdev
);
5312 netif_tx_disable(vsi
->netdev
);
5314 i40e_vsi_disable_irq(vsi
);
5315 i40e_vsi_control_rings(vsi
, false);
5316 i40e_napi_disable_all(vsi
);
5318 for (i
= 0; i
< vsi
->num_queue_pairs
; i
++) {
5319 i40e_clean_tx_ring(vsi
->tx_rings
[i
]);
5320 i40e_clean_rx_ring(vsi
->rx_rings
[i
]);
5323 i40e_notify_client_of_netdev_close(vsi
, false);
5328 * i40e_setup_tc - configure multiple traffic classes
5329 * @netdev: net device to configure
5330 * @tc: number of traffic classes to enable
5332 static int i40e_setup_tc(struct net_device
*netdev
, u8 tc
)
5334 struct i40e_netdev_priv
*np
= netdev_priv(netdev
);
5335 struct i40e_vsi
*vsi
= np
->vsi
;
5336 struct i40e_pf
*pf
= vsi
->back
;
5341 /* Check if DCB enabled to continue */
5342 if (!(pf
->flags
& I40E_FLAG_DCB_ENABLED
)) {
5343 netdev_info(netdev
, "DCB is not enabled for adapter\n");
5347 /* Check if MFP enabled */
5348 if (pf
->flags
& I40E_FLAG_MFP_ENABLED
) {
5349 netdev_info(netdev
, "Configuring TC not supported in MFP mode\n");
5353 /* Check whether tc count is within enabled limit */
5354 if (tc
> i40e_pf_get_num_tc(pf
)) {
5355 netdev_info(netdev
, "TC count greater than enabled on link for adapter\n");
5359 /* Generate TC map for number of tc requested */
5360 for (i
= 0; i
< tc
; i
++)
5361 enabled_tc
|= BIT(i
);
5363 /* Requesting same TC configuration as already enabled */
5364 if (enabled_tc
== vsi
->tc_config
.enabled_tc
)
5367 /* Quiesce VSI queues */
5368 i40e_quiesce_vsi(vsi
);
5370 /* Configure VSI for enabled TCs */
5371 ret
= i40e_vsi_config_tc(vsi
, enabled_tc
);
5373 netdev_info(netdev
, "Failed configuring TC for VSI seid=%d\n",
5379 i40e_unquiesce_vsi(vsi
);
5386 int __i40e_setup_tc(struct net_device
*netdev
, u32 handle
, __be16 proto
,
5387 struct tc_to_netdev
*tc
)
5389 static int __i40e_setup_tc(struct net_device
*netdev
, u32 handle
, __be16 proto
,
5390 struct tc_to_netdev
*tc
)
5393 if (handle
!= TC_H_ROOT
|| tc
->type
!= TC_SETUP_MQPRIO
)
5395 return i40e_setup_tc(netdev
, tc
->tc
);
5399 * i40e_open - Called when a network interface is made active
5400 * @netdev: network interface device structure
5402 * The open entry point is called when a network interface is made
5403 * active by the system (IFF_UP). At this point all resources needed
5404 * for transmit and receive operations are allocated, the interrupt
5405 * handler is registered with the OS, the netdev watchdog subtask is
5406 * enabled, and the stack is notified that the interface is ready.
5408 * Returns 0 on success, negative value on failure
5410 int i40e_open(struct net_device
*netdev
)
5412 struct i40e_netdev_priv
*np
= netdev_priv(netdev
);
5413 struct i40e_vsi
*vsi
= np
->vsi
;
5414 struct i40e_pf
*pf
= vsi
->back
;
5417 /* disallow open during test or if eeprom is broken */
5418 if (test_bit(__I40E_TESTING
, &pf
->state
) ||
5419 test_bit(__I40E_BAD_EEPROM
, &pf
->state
))
5422 netif_carrier_off(netdev
);
5424 err
= i40e_vsi_open(vsi
);
5428 /* configure global TSO hardware offload settings */
5429 wr32(&pf
->hw
, I40E_GLLAN_TSOMSK_F
, be32_to_cpu(TCP_FLAG_PSH
|
5430 TCP_FLAG_FIN
) >> 16);
5431 wr32(&pf
->hw
, I40E_GLLAN_TSOMSK_M
, be32_to_cpu(TCP_FLAG_PSH
|
5433 TCP_FLAG_CWR
) >> 16);
5434 wr32(&pf
->hw
, I40E_GLLAN_TSOMSK_L
, be32_to_cpu(TCP_FLAG_CWR
) >> 16);
5436 udp_tunnel_get_rx_info(netdev
);
5443 * @vsi: the VSI to open
5445 * Finish initialization of the VSI.
5447 * Returns 0 on success, negative value on failure
5449 int i40e_vsi_open(struct i40e_vsi
*vsi
)
5451 struct i40e_pf
*pf
= vsi
->back
;
5452 char int_name
[I40E_INT_NAME_STR_LEN
];
5455 /* allocate descriptors */
5456 err
= i40e_vsi_setup_tx_resources(vsi
);
5459 err
= i40e_vsi_setup_rx_resources(vsi
);
5463 err
= i40e_vsi_configure(vsi
);
5468 snprintf(int_name
, sizeof(int_name
) - 1, "%s-%s",
5469 dev_driver_string(&pf
->pdev
->dev
), vsi
->netdev
->name
);
5470 err
= i40e_vsi_request_irq(vsi
, int_name
);
5474 /* Notify the stack of the actual queue counts. */
5475 err
= netif_set_real_num_tx_queues(vsi
->netdev
,
5476 vsi
->num_queue_pairs
);
5478 goto err_set_queues
;
5480 err
= netif_set_real_num_rx_queues(vsi
->netdev
,
5481 vsi
->num_queue_pairs
);
5483 goto err_set_queues
;
5485 } else if (vsi
->type
== I40E_VSI_FDIR
) {
5486 snprintf(int_name
, sizeof(int_name
) - 1, "%s-%s:fdir",
5487 dev_driver_string(&pf
->pdev
->dev
),
5488 dev_name(&pf
->pdev
->dev
));
5489 err
= i40e_vsi_request_irq(vsi
, int_name
);
5496 err
= i40e_up_complete(vsi
);
5498 goto err_up_complete
;
5505 i40e_vsi_free_irq(vsi
);
5507 i40e_vsi_free_rx_resources(vsi
);
5509 i40e_vsi_free_tx_resources(vsi
);
5510 if (vsi
== pf
->vsi
[pf
->lan_vsi
])
5511 i40e_do_reset(pf
, BIT_ULL(__I40E_PF_RESET_REQUESTED
));
5517 * i40e_fdir_filter_exit - Cleans up the Flow Director accounting
5518 * @pf: Pointer to PF
5520 * This function destroys the hlist where all the Flow Director
5521 * filters were saved.
5523 static void i40e_fdir_filter_exit(struct i40e_pf
*pf
)
5525 struct i40e_fdir_filter
*filter
;
5526 struct hlist_node
*node2
;
5528 hlist_for_each_entry_safe(filter
, node2
,
5529 &pf
->fdir_filter_list
, fdir_node
) {
5530 hlist_del(&filter
->fdir_node
);
5533 pf
->fdir_pf_active_filters
= 0;
5537 * i40e_close - Disables a network interface
5538 * @netdev: network interface device structure
5540 * The close entry point is called when an interface is de-activated
5541 * by the OS. The hardware is still under the driver's control, but
5542 * this netdev interface is disabled.
5544 * Returns 0, this is not allowed to fail
5546 int i40e_close(struct net_device
*netdev
)
5548 struct i40e_netdev_priv
*np
= netdev_priv(netdev
);
5549 struct i40e_vsi
*vsi
= np
->vsi
;
5551 i40e_vsi_close(vsi
);
5557 * i40e_do_reset - Start a PF or Core Reset sequence
5558 * @pf: board private structure
5559 * @reset_flags: which reset is requested
5561 * The essential difference in resets is that the PF Reset
5562 * doesn't clear the packet buffers, doesn't reset the PE
5563 * firmware, and doesn't bother the other PFs on the chip.
5565 void i40e_do_reset(struct i40e_pf
*pf
, u32 reset_flags
)
5569 WARN_ON(in_interrupt());
5572 /* do the biggest reset indicated */
5573 if (reset_flags
& BIT_ULL(__I40E_GLOBAL_RESET_REQUESTED
)) {
5575 /* Request a Global Reset
5577 * This will start the chip's countdown to the actual full
5578 * chip reset event, and a warning interrupt to be sent
5579 * to all PFs, including the requestor. Our handler
5580 * for the warning interrupt will deal with the shutdown
5581 * and recovery of the switch setup.
5583 dev_dbg(&pf
->pdev
->dev
, "GlobalR requested\n");
5584 val
= rd32(&pf
->hw
, I40E_GLGEN_RTRIG
);
5585 val
|= I40E_GLGEN_RTRIG_GLOBR_MASK
;
5586 wr32(&pf
->hw
, I40E_GLGEN_RTRIG
, val
);
5588 } else if (reset_flags
& BIT_ULL(__I40E_CORE_RESET_REQUESTED
)) {
5590 /* Request a Core Reset
5592 * Same as Global Reset, except does *not* include the MAC/PHY
5594 dev_dbg(&pf
->pdev
->dev
, "CoreR requested\n");
5595 val
= rd32(&pf
->hw
, I40E_GLGEN_RTRIG
);
5596 val
|= I40E_GLGEN_RTRIG_CORER_MASK
;
5597 wr32(&pf
->hw
, I40E_GLGEN_RTRIG
, val
);
5598 i40e_flush(&pf
->hw
);
5600 } else if (reset_flags
& BIT_ULL(__I40E_PF_RESET_REQUESTED
)) {
5602 /* Request a PF Reset
5604 * Resets only the PF-specific registers
5606 * This goes directly to the tear-down and rebuild of
5607 * the switch, since we need to do all the recovery as
5608 * for the Core Reset.
5610 dev_dbg(&pf
->pdev
->dev
, "PFR requested\n");
5611 i40e_handle_reset_warning(pf
);
5613 } else if (reset_flags
& BIT_ULL(__I40E_REINIT_REQUESTED
)) {
5616 /* Find the VSI(s) that requested a re-init */
5617 dev_info(&pf
->pdev
->dev
,
5618 "VSI reinit requested\n");
5619 for (v
= 0; v
< pf
->num_alloc_vsi
; v
++) {
5620 struct i40e_vsi
*vsi
= pf
->vsi
[v
];
5623 test_bit(__I40E_REINIT_REQUESTED
, &vsi
->state
)) {
5624 i40e_vsi_reinit_locked(pf
->vsi
[v
]);
5625 clear_bit(__I40E_REINIT_REQUESTED
, &vsi
->state
);
5628 } else if (reset_flags
& BIT_ULL(__I40E_DOWN_REQUESTED
)) {
5631 /* Find the VSI(s) that needs to be brought down */
5632 dev_info(&pf
->pdev
->dev
, "VSI down requested\n");
5633 for (v
= 0; v
< pf
->num_alloc_vsi
; v
++) {
5634 struct i40e_vsi
*vsi
= pf
->vsi
[v
];
5637 test_bit(__I40E_DOWN_REQUESTED
, &vsi
->state
)) {
5638 set_bit(__I40E_DOWN
, &vsi
->state
);
5640 clear_bit(__I40E_DOWN_REQUESTED
, &vsi
->state
);
5644 dev_info(&pf
->pdev
->dev
,
5645 "bad reset request 0x%08x\n", reset_flags
);
5649 #ifdef CONFIG_I40E_DCB
5651 * i40e_dcb_need_reconfig - Check if DCB needs reconfig
5652 * @pf: board private structure
5653 * @old_cfg: current DCB config
5654 * @new_cfg: new DCB config
5656 bool i40e_dcb_need_reconfig(struct i40e_pf
*pf
,
5657 struct i40e_dcbx_config
*old_cfg
,
5658 struct i40e_dcbx_config
*new_cfg
)
5660 bool need_reconfig
= false;
5662 /* Check if ETS configuration has changed */
5663 if (memcmp(&new_cfg
->etscfg
,
5665 sizeof(new_cfg
->etscfg
))) {
5666 /* If Priority Table has changed reconfig is needed */
5667 if (memcmp(&new_cfg
->etscfg
.prioritytable
,
5668 &old_cfg
->etscfg
.prioritytable
,
5669 sizeof(new_cfg
->etscfg
.prioritytable
))) {
5670 need_reconfig
= true;
5671 dev_dbg(&pf
->pdev
->dev
, "ETS UP2TC changed.\n");
5674 if (memcmp(&new_cfg
->etscfg
.tcbwtable
,
5675 &old_cfg
->etscfg
.tcbwtable
,
5676 sizeof(new_cfg
->etscfg
.tcbwtable
)))
5677 dev_dbg(&pf
->pdev
->dev
, "ETS TC BW Table changed.\n");
5679 if (memcmp(&new_cfg
->etscfg
.tsatable
,
5680 &old_cfg
->etscfg
.tsatable
,
5681 sizeof(new_cfg
->etscfg
.tsatable
)))
5682 dev_dbg(&pf
->pdev
->dev
, "ETS TSA Table changed.\n");
5685 /* Check if PFC configuration has changed */
5686 if (memcmp(&new_cfg
->pfc
,
5688 sizeof(new_cfg
->pfc
))) {
5689 need_reconfig
= true;
5690 dev_dbg(&pf
->pdev
->dev
, "PFC config change detected.\n");
5693 /* Check if APP Table has changed */
5694 if (memcmp(&new_cfg
->app
,
5696 sizeof(new_cfg
->app
))) {
5697 need_reconfig
= true;
5698 dev_dbg(&pf
->pdev
->dev
, "APP Table change detected.\n");
5701 dev_dbg(&pf
->pdev
->dev
, "dcb need_reconfig=%d\n", need_reconfig
);
5702 return need_reconfig
;
5706 * i40e_handle_lldp_event - Handle LLDP Change MIB event
5707 * @pf: board private structure
5708 * @e: event info posted on ARQ
5710 static int i40e_handle_lldp_event(struct i40e_pf
*pf
,
5711 struct i40e_arq_event_info
*e
)
5713 struct i40e_aqc_lldp_get_mib
*mib
=
5714 (struct i40e_aqc_lldp_get_mib
*)&e
->desc
.params
.raw
;
5715 struct i40e_hw
*hw
= &pf
->hw
;
5716 struct i40e_dcbx_config tmp_dcbx_cfg
;
5717 bool need_reconfig
= false;
5721 /* Not DCB capable or capability disabled */
5722 if (!(pf
->flags
& I40E_FLAG_DCB_ENABLED
))
5725 /* Ignore if event is not for Nearest Bridge */
5726 type
= ((mib
->type
>> I40E_AQ_LLDP_BRIDGE_TYPE_SHIFT
)
5727 & I40E_AQ_LLDP_BRIDGE_TYPE_MASK
);
5728 dev_dbg(&pf
->pdev
->dev
, "LLDP event mib bridge type 0x%x\n", type
);
5729 if (type
!= I40E_AQ_LLDP_BRIDGE_TYPE_NEAREST_BRIDGE
)
5732 /* Check MIB Type and return if event for Remote MIB update */
5733 type
= mib
->type
& I40E_AQ_LLDP_MIB_TYPE_MASK
;
5734 dev_dbg(&pf
->pdev
->dev
,
5735 "LLDP event mib type %s\n", type
? "remote" : "local");
5736 if (type
== I40E_AQ_LLDP_MIB_REMOTE
) {
5737 /* Update the remote cached instance and return */
5738 ret
= i40e_aq_get_dcb_config(hw
, I40E_AQ_LLDP_MIB_REMOTE
,
5739 I40E_AQ_LLDP_BRIDGE_TYPE_NEAREST_BRIDGE
,
5740 &hw
->remote_dcbx_config
);
5744 /* Store the old configuration */
5745 tmp_dcbx_cfg
= hw
->local_dcbx_config
;
5747 /* Reset the old DCBx configuration data */
5748 memset(&hw
->local_dcbx_config
, 0, sizeof(hw
->local_dcbx_config
));
5749 /* Get updated DCBX data from firmware */
5750 ret
= i40e_get_dcb_config(&pf
->hw
);
5752 dev_info(&pf
->pdev
->dev
,
5753 "Failed querying DCB configuration data from firmware, err %s aq_err %s\n",
5754 i40e_stat_str(&pf
->hw
, ret
),
5755 i40e_aq_str(&pf
->hw
, pf
->hw
.aq
.asq_last_status
));
5759 /* No change detected in DCBX configs */
5760 if (!memcmp(&tmp_dcbx_cfg
, &hw
->local_dcbx_config
,
5761 sizeof(tmp_dcbx_cfg
))) {
5762 dev_dbg(&pf
->pdev
->dev
, "No change detected in DCBX configuration.\n");
5766 need_reconfig
= i40e_dcb_need_reconfig(pf
, &tmp_dcbx_cfg
,
5767 &hw
->local_dcbx_config
);
5769 i40e_dcbnl_flush_apps(pf
, &tmp_dcbx_cfg
, &hw
->local_dcbx_config
);
5774 /* Enable DCB tagging only when more than one TC */
5775 if (i40e_dcb_get_num_tc(&hw
->local_dcbx_config
) > 1)
5776 pf
->flags
|= I40E_FLAG_DCB_ENABLED
;
5778 pf
->flags
&= ~I40E_FLAG_DCB_ENABLED
;
5780 set_bit(__I40E_PORT_TX_SUSPENDED
, &pf
->state
);
5781 /* Reconfiguration needed quiesce all VSIs */
5782 i40e_pf_quiesce_all_vsi(pf
);
5784 /* Changes in configuration update VEB/VSI */
5785 i40e_dcb_reconfigure(pf
);
5787 ret
= i40e_resume_port_tx(pf
);
5789 clear_bit(__I40E_PORT_TX_SUSPENDED
, &pf
->state
);
5790 /* In case of error no point in resuming VSIs */
5794 /* Wait for the PF's queues to be disabled */
5795 ret
= i40e_pf_wait_queues_disabled(pf
);
5797 /* Schedule PF reset to recover */
5798 set_bit(__I40E_PF_RESET_REQUESTED
, &pf
->state
);
5799 i40e_service_event_schedule(pf
);
5801 i40e_pf_unquiesce_all_vsi(pf
);
5802 /* Notify the client for the DCB changes */
5803 i40e_notify_client_of_l2_param_changes(pf
->vsi
[pf
->lan_vsi
]);
5809 #endif /* CONFIG_I40E_DCB */
5812 * i40e_do_reset_safe - Protected reset path for userland calls.
5813 * @pf: board private structure
5814 * @reset_flags: which reset is requested
5817 void i40e_do_reset_safe(struct i40e_pf
*pf
, u32 reset_flags
)
5820 i40e_do_reset(pf
, reset_flags
);
5825 * i40e_handle_lan_overflow_event - Handler for LAN queue overflow event
5826 * @pf: board private structure
5827 * @e: event info posted on ARQ
5829 * Handler for LAN Queue Overflow Event generated by the firmware for PF
5832 static void i40e_handle_lan_overflow_event(struct i40e_pf
*pf
,
5833 struct i40e_arq_event_info
*e
)
5835 struct i40e_aqc_lan_overflow
*data
=
5836 (struct i40e_aqc_lan_overflow
*)&e
->desc
.params
.raw
;
5837 u32 queue
= le32_to_cpu(data
->prtdcb_rupto
);
5838 u32 qtx_ctl
= le32_to_cpu(data
->otx_ctl
);
5839 struct i40e_hw
*hw
= &pf
->hw
;
5843 dev_dbg(&pf
->pdev
->dev
, "overflow Rx Queue Number = %d QTX_CTL=0x%08x\n",
5846 /* Queue belongs to VF, find the VF and issue VF reset */
5847 if (((qtx_ctl
& I40E_QTX_CTL_PFVF_Q_MASK
)
5848 >> I40E_QTX_CTL_PFVF_Q_SHIFT
) == I40E_QTX_CTL_VF_QUEUE
) {
5849 vf_id
= (u16
)((qtx_ctl
& I40E_QTX_CTL_VFVM_INDX_MASK
)
5850 >> I40E_QTX_CTL_VFVM_INDX_SHIFT
);
5851 vf_id
-= hw
->func_caps
.vf_base_id
;
5852 vf
= &pf
->vf
[vf_id
];
5853 i40e_vc_notify_vf_reset(vf
);
5854 /* Allow VF to process pending reset notification */
5856 i40e_reset_vf(vf
, false);
5861 * i40e_service_event_complete - Finish up the service event
5862 * @pf: board private structure
5864 static void i40e_service_event_complete(struct i40e_pf
*pf
)
5866 WARN_ON(!test_bit(__I40E_SERVICE_SCHED
, &pf
->state
));
5868 /* flush memory to make sure state is correct before next watchog */
5869 smp_mb__before_atomic();
5870 clear_bit(__I40E_SERVICE_SCHED
, &pf
->state
);
5874 * i40e_get_cur_guaranteed_fd_count - Get the consumed guaranteed FD filters
5875 * @pf: board private structure
5877 u32
i40e_get_cur_guaranteed_fd_count(struct i40e_pf
*pf
)
5881 val
= rd32(&pf
->hw
, I40E_PFQF_FDSTAT
);
5882 fcnt_prog
= (val
& I40E_PFQF_FDSTAT_GUARANT_CNT_MASK
);
5887 * i40e_get_current_fd_count - Get total FD filters programmed for this PF
5888 * @pf: board private structure
5890 u32
i40e_get_current_fd_count(struct i40e_pf
*pf
)
5894 val
= rd32(&pf
->hw
, I40E_PFQF_FDSTAT
);
5895 fcnt_prog
= (val
& I40E_PFQF_FDSTAT_GUARANT_CNT_MASK
) +
5896 ((val
& I40E_PFQF_FDSTAT_BEST_CNT_MASK
) >>
5897 I40E_PFQF_FDSTAT_BEST_CNT_SHIFT
);
5902 * i40e_get_global_fd_count - Get total FD filters programmed on device
5903 * @pf: board private structure
5905 u32
i40e_get_global_fd_count(struct i40e_pf
*pf
)
5909 val
= rd32(&pf
->hw
, I40E_GLQF_FDCNT_0
);
5910 fcnt_prog
= (val
& I40E_GLQF_FDCNT_0_GUARANT_CNT_MASK
) +
5911 ((val
& I40E_GLQF_FDCNT_0_BESTCNT_MASK
) >>
5912 I40E_GLQF_FDCNT_0_BESTCNT_SHIFT
);
5917 * i40e_fdir_check_and_reenable - Function to reenabe FD ATR or SB if disabled
5918 * @pf: board private structure
5920 void i40e_fdir_check_and_reenable(struct i40e_pf
*pf
)
5922 struct i40e_fdir_filter
*filter
;
5923 u32 fcnt_prog
, fcnt_avail
;
5924 struct hlist_node
*node
;
5926 if (test_bit(__I40E_FD_FLUSH_REQUESTED
, &pf
->state
))
5929 /* Check if, FD SB or ATR was auto disabled and if there is enough room
5932 fcnt_prog
= i40e_get_global_fd_count(pf
);
5933 fcnt_avail
= pf
->fdir_pf_filter_count
;
5934 if ((fcnt_prog
< (fcnt_avail
- I40E_FDIR_BUFFER_HEAD_ROOM
)) ||
5935 (pf
->fd_add_err
== 0) ||
5936 (i40e_get_current_atr_cnt(pf
) < pf
->fd_atr_cnt
)) {
5937 if ((pf
->flags
& I40E_FLAG_FD_SB_ENABLED
) &&
5938 (pf
->auto_disable_flags
& I40E_FLAG_FD_SB_ENABLED
)) {
5939 pf
->auto_disable_flags
&= ~I40E_FLAG_FD_SB_ENABLED
;
5940 if (I40E_DEBUG_FD
& pf
->hw
.debug_mask
)
5941 dev_info(&pf
->pdev
->dev
, "FD Sideband/ntuple is being enabled since we have space in the table now\n");
5944 /* Wait for some more space to be available to turn on ATR */
5945 if (fcnt_prog
< (fcnt_avail
- I40E_FDIR_BUFFER_HEAD_ROOM
* 2)) {
5946 if ((pf
->flags
& I40E_FLAG_FD_ATR_ENABLED
) &&
5947 (pf
->auto_disable_flags
& I40E_FLAG_FD_ATR_ENABLED
)) {
5948 pf
->auto_disable_flags
&= ~I40E_FLAG_FD_ATR_ENABLED
;
5949 if (I40E_DEBUG_FD
& pf
->hw
.debug_mask
)
5950 dev_info(&pf
->pdev
->dev
, "ATR is being enabled since we have space in the table now\n");
5954 /* if hw had a problem adding a filter, delete it */
5955 if (pf
->fd_inv
> 0) {
5956 hlist_for_each_entry_safe(filter
, node
,
5957 &pf
->fdir_filter_list
, fdir_node
) {
5958 if (filter
->fd_id
== pf
->fd_inv
) {
5959 hlist_del(&filter
->fdir_node
);
5961 pf
->fdir_pf_active_filters
--;
5967 #define I40E_MIN_FD_FLUSH_INTERVAL 10
5968 #define I40E_MIN_FD_FLUSH_SB_ATR_UNSTABLE 30
5970 * i40e_fdir_flush_and_replay - Function to flush all FD filters and replay SB
5971 * @pf: board private structure
5973 static void i40e_fdir_flush_and_replay(struct i40e_pf
*pf
)
5975 unsigned long min_flush_time
;
5976 int flush_wait_retry
= 50;
5977 bool disable_atr
= false;
5981 if (!(pf
->flags
& (I40E_FLAG_FD_SB_ENABLED
| I40E_FLAG_FD_ATR_ENABLED
)))
5984 if (!time_after(jiffies
, pf
->fd_flush_timestamp
+
5985 (I40E_MIN_FD_FLUSH_INTERVAL
* HZ
)))
5988 /* If the flush is happening too quick and we have mostly SB rules we
5989 * should not re-enable ATR for some time.
5991 min_flush_time
= pf
->fd_flush_timestamp
+
5992 (I40E_MIN_FD_FLUSH_SB_ATR_UNSTABLE
* HZ
);
5993 fd_room
= pf
->fdir_pf_filter_count
- pf
->fdir_pf_active_filters
;
5995 if (!(time_after(jiffies
, min_flush_time
)) &&
5996 (fd_room
< I40E_FDIR_BUFFER_HEAD_ROOM_FOR_ATR
)) {
5997 if (I40E_DEBUG_FD
& pf
->hw
.debug_mask
)
5998 dev_info(&pf
->pdev
->dev
, "ATR disabled, not enough FD filter space.\n");
6002 pf
->fd_flush_timestamp
= jiffies
;
6003 pf
->flags
&= ~I40E_FLAG_FD_ATR_ENABLED
;
6004 /* flush all filters */
6005 wr32(&pf
->hw
, I40E_PFQF_CTL_1
,
6006 I40E_PFQF_CTL_1_CLEARFDTABLE_MASK
);
6007 i40e_flush(&pf
->hw
);
6011 /* Check FD flush status every 5-6msec */
6012 usleep_range(5000, 6000);
6013 reg
= rd32(&pf
->hw
, I40E_PFQF_CTL_1
);
6014 if (!(reg
& I40E_PFQF_CTL_1_CLEARFDTABLE_MASK
))
6016 } while (flush_wait_retry
--);
6017 if (reg
& I40E_PFQF_CTL_1_CLEARFDTABLE_MASK
) {
6018 dev_warn(&pf
->pdev
->dev
, "FD table did not flush, needs more time\n");
6020 /* replay sideband filters */
6021 i40e_fdir_filter_restore(pf
->vsi
[pf
->lan_vsi
]);
6023 pf
->flags
|= I40E_FLAG_FD_ATR_ENABLED
;
6024 clear_bit(__I40E_FD_FLUSH_REQUESTED
, &pf
->state
);
6025 if (I40E_DEBUG_FD
& pf
->hw
.debug_mask
)
6026 dev_info(&pf
->pdev
->dev
, "FD Filter table flushed and FD-SB replayed.\n");
6031 * i40e_get_current_atr_count - Get the count of total FD ATR filters programmed
6032 * @pf: board private structure
6034 u32
i40e_get_current_atr_cnt(struct i40e_pf
*pf
)
6036 return i40e_get_current_fd_count(pf
) - pf
->fdir_pf_active_filters
;
6039 /* We can see up to 256 filter programming desc in transit if the filters are
6040 * being applied really fast; before we see the first
6041 * filter miss error on Rx queue 0. Accumulating enough error messages before
6042 * reacting will make sure we don't cause flush too often.
6044 #define I40E_MAX_FD_PROGRAM_ERROR 256
6047 * i40e_fdir_reinit_subtask - Worker thread to reinit FDIR filter table
6048 * @pf: board private structure
6050 static void i40e_fdir_reinit_subtask(struct i40e_pf
*pf
)
6053 /* if interface is down do nothing */
6054 if (test_bit(__I40E_DOWN
, &pf
->state
))
6057 if (!(pf
->flags
& (I40E_FLAG_FD_SB_ENABLED
| I40E_FLAG_FD_ATR_ENABLED
)))
6060 if (test_bit(__I40E_FD_FLUSH_REQUESTED
, &pf
->state
))
6061 i40e_fdir_flush_and_replay(pf
);
6063 i40e_fdir_check_and_reenable(pf
);
6068 * i40e_vsi_link_event - notify VSI of a link event
6069 * @vsi: vsi to be notified
6070 * @link_up: link up or down
6072 static void i40e_vsi_link_event(struct i40e_vsi
*vsi
, bool link_up
)
6074 if (!vsi
|| test_bit(__I40E_DOWN
, &vsi
->state
))
6077 switch (vsi
->type
) {
6082 if (!vsi
->netdev
|| !vsi
->netdev_registered
)
6086 netif_carrier_on(vsi
->netdev
);
6087 netif_tx_wake_all_queues(vsi
->netdev
);
6089 netif_carrier_off(vsi
->netdev
);
6090 netif_tx_stop_all_queues(vsi
->netdev
);
6094 case I40E_VSI_SRIOV
:
6095 case I40E_VSI_VMDQ2
:
6097 case I40E_VSI_IWARP
:
6098 case I40E_VSI_MIRROR
:
6100 /* there is no notification for other VSIs */
6106 * i40e_veb_link_event - notify elements on the veb of a link event
6107 * @veb: veb to be notified
6108 * @link_up: link up or down
6110 static void i40e_veb_link_event(struct i40e_veb
*veb
, bool link_up
)
6115 if (!veb
|| !veb
->pf
)
6119 /* depth first... */
6120 for (i
= 0; i
< I40E_MAX_VEB
; i
++)
6121 if (pf
->veb
[i
] && (pf
->veb
[i
]->uplink_seid
== veb
->seid
))
6122 i40e_veb_link_event(pf
->veb
[i
], link_up
);
6124 /* ... now the local VSIs */
6125 for (i
= 0; i
< pf
->num_alloc_vsi
; i
++)
6126 if (pf
->vsi
[i
] && (pf
->vsi
[i
]->uplink_seid
== veb
->seid
))
6127 i40e_vsi_link_event(pf
->vsi
[i
], link_up
);
6131 * i40e_link_event - Update netif_carrier status
6132 * @pf: board private structure
6134 static void i40e_link_event(struct i40e_pf
*pf
)
6136 struct i40e_vsi
*vsi
= pf
->vsi
[pf
->lan_vsi
];
6137 u8 new_link_speed
, old_link_speed
;
6139 bool new_link
, old_link
;
6141 /* save off old link status information */
6142 pf
->hw
.phy
.link_info_old
= pf
->hw
.phy
.link_info
;
6144 /* set this to force the get_link_status call to refresh state */
6145 pf
->hw
.phy
.get_link_info
= true;
6147 old_link
= (pf
->hw
.phy
.link_info_old
.link_info
& I40E_AQ_LINK_UP
);
6149 status
= i40e_get_link_status(&pf
->hw
, &new_link
);
6151 dev_dbg(&pf
->pdev
->dev
, "couldn't get link state, status: %d\n",
6156 old_link_speed
= pf
->hw
.phy
.link_info_old
.link_speed
;
6157 new_link_speed
= pf
->hw
.phy
.link_info
.link_speed
;
6159 if (new_link
== old_link
&&
6160 new_link_speed
== old_link_speed
&&
6161 (test_bit(__I40E_DOWN
, &vsi
->state
) ||
6162 new_link
== netif_carrier_ok(vsi
->netdev
)))
6165 if (!test_bit(__I40E_DOWN
, &vsi
->state
))
6166 i40e_print_link_message(vsi
, new_link
);
6168 /* Notify the base of the switch tree connected to
6169 * the link. Floating VEBs are not notified.
6171 if (pf
->lan_veb
!= I40E_NO_VEB
&& pf
->veb
[pf
->lan_veb
])
6172 i40e_veb_link_event(pf
->veb
[pf
->lan_veb
], new_link
);
6174 i40e_vsi_link_event(vsi
, new_link
);
6177 i40e_vc_notify_link_state(pf
);
6179 if (pf
->flags
& I40E_FLAG_PTP
)
6180 i40e_ptp_set_increment(pf
);
6184 * i40e_watchdog_subtask - periodic checks not using event driven response
6185 * @pf: board private structure
6187 static void i40e_watchdog_subtask(struct i40e_pf
*pf
)
6191 /* if interface is down do nothing */
6192 if (test_bit(__I40E_DOWN
, &pf
->state
) ||
6193 test_bit(__I40E_CONFIG_BUSY
, &pf
->state
))
6196 /* make sure we don't do these things too often */
6197 if (time_before(jiffies
, (pf
->service_timer_previous
+
6198 pf
->service_timer_period
)))
6200 pf
->service_timer_previous
= jiffies
;
6202 if (pf
->flags
& I40E_FLAG_LINK_POLLING_ENABLED
)
6203 i40e_link_event(pf
);
6205 /* Update the stats for active netdevs so the network stack
6206 * can look at updated numbers whenever it cares to
6208 for (i
= 0; i
< pf
->num_alloc_vsi
; i
++)
6209 if (pf
->vsi
[i
] && pf
->vsi
[i
]->netdev
)
6210 i40e_update_stats(pf
->vsi
[i
]);
6212 if (pf
->flags
& I40E_FLAG_VEB_STATS_ENABLED
) {
6213 /* Update the stats for the active switching components */
6214 for (i
= 0; i
< I40E_MAX_VEB
; i
++)
6216 i40e_update_veb_stats(pf
->veb
[i
]);
6219 i40e_ptp_rx_hang(pf
->vsi
[pf
->lan_vsi
]);
6223 * i40e_reset_subtask - Set up for resetting the device and driver
6224 * @pf: board private structure
6226 static void i40e_reset_subtask(struct i40e_pf
*pf
)
6228 u32 reset_flags
= 0;
6231 if (test_bit(__I40E_REINIT_REQUESTED
, &pf
->state
)) {
6232 reset_flags
|= BIT(__I40E_REINIT_REQUESTED
);
6233 clear_bit(__I40E_REINIT_REQUESTED
, &pf
->state
);
6235 if (test_bit(__I40E_PF_RESET_REQUESTED
, &pf
->state
)) {
6236 reset_flags
|= BIT(__I40E_PF_RESET_REQUESTED
);
6237 clear_bit(__I40E_PF_RESET_REQUESTED
, &pf
->state
);
6239 if (test_bit(__I40E_CORE_RESET_REQUESTED
, &pf
->state
)) {
6240 reset_flags
|= BIT(__I40E_CORE_RESET_REQUESTED
);
6241 clear_bit(__I40E_CORE_RESET_REQUESTED
, &pf
->state
);
6243 if (test_bit(__I40E_GLOBAL_RESET_REQUESTED
, &pf
->state
)) {
6244 reset_flags
|= BIT(__I40E_GLOBAL_RESET_REQUESTED
);
6245 clear_bit(__I40E_GLOBAL_RESET_REQUESTED
, &pf
->state
);
6247 if (test_bit(__I40E_DOWN_REQUESTED
, &pf
->state
)) {
6248 reset_flags
|= BIT(__I40E_DOWN_REQUESTED
);
6249 clear_bit(__I40E_DOWN_REQUESTED
, &pf
->state
);
6252 /* If there's a recovery already waiting, it takes
6253 * precedence before starting a new reset sequence.
6255 if (test_bit(__I40E_RESET_INTR_RECEIVED
, &pf
->state
)) {
6256 i40e_handle_reset_warning(pf
);
6260 /* If we're already down or resetting, just bail */
6262 !test_bit(__I40E_DOWN
, &pf
->state
) &&
6263 !test_bit(__I40E_CONFIG_BUSY
, &pf
->state
))
6264 i40e_do_reset(pf
, reset_flags
);
6271 * i40e_handle_link_event - Handle link event
6272 * @pf: board private structure
6273 * @e: event info posted on ARQ
6275 static void i40e_handle_link_event(struct i40e_pf
*pf
,
6276 struct i40e_arq_event_info
*e
)
6278 struct i40e_aqc_get_link_status
*status
=
6279 (struct i40e_aqc_get_link_status
*)&e
->desc
.params
.raw
;
6281 /* Do a new status request to re-enable LSE reporting
6282 * and load new status information into the hw struct
6283 * This completely ignores any state information
6284 * in the ARQ event info, instead choosing to always
6285 * issue the AQ update link status command.
6287 i40e_link_event(pf
);
6289 /* check for unqualified module, if link is down */
6290 if ((status
->link_info
& I40E_AQ_MEDIA_AVAILABLE
) &&
6291 (!(status
->an_info
& I40E_AQ_QUALIFIED_MODULE
)) &&
6292 (!(status
->link_info
& I40E_AQ_LINK_UP
)))
6293 dev_err(&pf
->pdev
->dev
,
6294 "The driver failed to link because an unqualified module was detected.\n");
6298 * i40e_clean_adminq_subtask - Clean the AdminQ rings
6299 * @pf: board private structure
6301 static void i40e_clean_adminq_subtask(struct i40e_pf
*pf
)
6303 struct i40e_arq_event_info event
;
6304 struct i40e_hw
*hw
= &pf
->hw
;
6311 /* Do not run clean AQ when PF reset fails */
6312 if (test_bit(__I40E_RESET_FAILED
, &pf
->state
))
6315 /* check for error indications */
6316 val
= rd32(&pf
->hw
, pf
->hw
.aq
.arq
.len
);
6318 if (val
& I40E_PF_ARQLEN_ARQVFE_MASK
) {
6319 if (hw
->debug_mask
& I40E_DEBUG_AQ
)
6320 dev_info(&pf
->pdev
->dev
, "ARQ VF Error detected\n");
6321 val
&= ~I40E_PF_ARQLEN_ARQVFE_MASK
;
6323 if (val
& I40E_PF_ARQLEN_ARQOVFL_MASK
) {
6324 if (hw
->debug_mask
& I40E_DEBUG_AQ
)
6325 dev_info(&pf
->pdev
->dev
, "ARQ Overflow Error detected\n");
6326 val
&= ~I40E_PF_ARQLEN_ARQOVFL_MASK
;
6327 pf
->arq_overflows
++;
6329 if (val
& I40E_PF_ARQLEN_ARQCRIT_MASK
) {
6330 if (hw
->debug_mask
& I40E_DEBUG_AQ
)
6331 dev_info(&pf
->pdev
->dev
, "ARQ Critical Error detected\n");
6332 val
&= ~I40E_PF_ARQLEN_ARQCRIT_MASK
;
6335 wr32(&pf
->hw
, pf
->hw
.aq
.arq
.len
, val
);
6337 val
= rd32(&pf
->hw
, pf
->hw
.aq
.asq
.len
);
6339 if (val
& I40E_PF_ATQLEN_ATQVFE_MASK
) {
6340 if (pf
->hw
.debug_mask
& I40E_DEBUG_AQ
)
6341 dev_info(&pf
->pdev
->dev
, "ASQ VF Error detected\n");
6342 val
&= ~I40E_PF_ATQLEN_ATQVFE_MASK
;
6344 if (val
& I40E_PF_ATQLEN_ATQOVFL_MASK
) {
6345 if (pf
->hw
.debug_mask
& I40E_DEBUG_AQ
)
6346 dev_info(&pf
->pdev
->dev
, "ASQ Overflow Error detected\n");
6347 val
&= ~I40E_PF_ATQLEN_ATQOVFL_MASK
;
6349 if (val
& I40E_PF_ATQLEN_ATQCRIT_MASK
) {
6350 if (pf
->hw
.debug_mask
& I40E_DEBUG_AQ
)
6351 dev_info(&pf
->pdev
->dev
, "ASQ Critical Error detected\n");
6352 val
&= ~I40E_PF_ATQLEN_ATQCRIT_MASK
;
6355 wr32(&pf
->hw
, pf
->hw
.aq
.asq
.len
, val
);
6357 event
.buf_len
= I40E_MAX_AQ_BUF_SIZE
;
6358 event
.msg_buf
= kzalloc(event
.buf_len
, GFP_KERNEL
);
6363 ret
= i40e_clean_arq_element(hw
, &event
, &pending
);
6364 if (ret
== I40E_ERR_ADMIN_QUEUE_NO_WORK
)
6367 dev_info(&pf
->pdev
->dev
, "ARQ event error %d\n", ret
);
6371 opcode
= le16_to_cpu(event
.desc
.opcode
);
6374 case i40e_aqc_opc_get_link_status
:
6375 i40e_handle_link_event(pf
, &event
);
6377 case i40e_aqc_opc_send_msg_to_pf
:
6378 ret
= i40e_vc_process_vf_msg(pf
,
6379 le16_to_cpu(event
.desc
.retval
),
6380 le32_to_cpu(event
.desc
.cookie_high
),
6381 le32_to_cpu(event
.desc
.cookie_low
),
6385 case i40e_aqc_opc_lldp_update_mib
:
6386 dev_dbg(&pf
->pdev
->dev
, "ARQ: Update LLDP MIB event received\n");
6387 #ifdef CONFIG_I40E_DCB
6389 ret
= i40e_handle_lldp_event(pf
, &event
);
6391 #endif /* CONFIG_I40E_DCB */
6393 case i40e_aqc_opc_event_lan_overflow
:
6394 dev_dbg(&pf
->pdev
->dev
, "ARQ LAN queue overflow event received\n");
6395 i40e_handle_lan_overflow_event(pf
, &event
);
6397 case i40e_aqc_opc_send_msg_to_peer
:
6398 dev_info(&pf
->pdev
->dev
, "ARQ: Msg from other pf\n");
6400 case i40e_aqc_opc_nvm_erase
:
6401 case i40e_aqc_opc_nvm_update
:
6402 case i40e_aqc_opc_oem_post_update
:
6403 i40e_debug(&pf
->hw
, I40E_DEBUG_NVM
,
6404 "ARQ NVM operation 0x%04x completed\n",
6408 dev_info(&pf
->pdev
->dev
,
6409 "ARQ: Unknown event 0x%04x ignored\n",
6413 } while (pending
&& (i
++ < pf
->adminq_work_limit
));
6415 clear_bit(__I40E_ADMINQ_EVENT_PENDING
, &pf
->state
);
6416 /* re-enable Admin queue interrupt cause */
6417 val
= rd32(hw
, I40E_PFINT_ICR0_ENA
);
6418 val
|= I40E_PFINT_ICR0_ENA_ADMINQ_MASK
;
6419 wr32(hw
, I40E_PFINT_ICR0_ENA
, val
);
6422 kfree(event
.msg_buf
);
6426 * i40e_verify_eeprom - make sure eeprom is good to use
6427 * @pf: board private structure
6429 static void i40e_verify_eeprom(struct i40e_pf
*pf
)
6433 err
= i40e_diag_eeprom_test(&pf
->hw
);
6435 /* retry in case of garbage read */
6436 err
= i40e_diag_eeprom_test(&pf
->hw
);
6438 dev_info(&pf
->pdev
->dev
, "eeprom check failed (%d), Tx/Rx traffic disabled\n",
6440 set_bit(__I40E_BAD_EEPROM
, &pf
->state
);
6444 if (!err
&& test_bit(__I40E_BAD_EEPROM
, &pf
->state
)) {
6445 dev_info(&pf
->pdev
->dev
, "eeprom check passed, Tx/Rx traffic enabled\n");
6446 clear_bit(__I40E_BAD_EEPROM
, &pf
->state
);
6451 * i40e_enable_pf_switch_lb
6452 * @pf: pointer to the PF structure
6454 * enable switch loop back or die - no point in a return value
6456 static void i40e_enable_pf_switch_lb(struct i40e_pf
*pf
)
6458 struct i40e_vsi
*vsi
= pf
->vsi
[pf
->lan_vsi
];
6459 struct i40e_vsi_context ctxt
;
6462 ctxt
.seid
= pf
->main_vsi_seid
;
6463 ctxt
.pf_num
= pf
->hw
.pf_id
;
6465 ret
= i40e_aq_get_vsi_params(&pf
->hw
, &ctxt
, NULL
);
6467 dev_info(&pf
->pdev
->dev
,
6468 "couldn't get PF vsi config, err %s aq_err %s\n",
6469 i40e_stat_str(&pf
->hw
, ret
),
6470 i40e_aq_str(&pf
->hw
, pf
->hw
.aq
.asq_last_status
));
6473 ctxt
.flags
= I40E_AQ_VSI_TYPE_PF
;
6474 ctxt
.info
.valid_sections
= cpu_to_le16(I40E_AQ_VSI_PROP_SWITCH_VALID
);
6475 ctxt
.info
.switch_id
|= cpu_to_le16(I40E_AQ_VSI_SW_ID_FLAG_ALLOW_LB
);
6477 ret
= i40e_aq_update_vsi_params(&vsi
->back
->hw
, &ctxt
, NULL
);
6479 dev_info(&pf
->pdev
->dev
,
6480 "update vsi switch failed, err %s aq_err %s\n",
6481 i40e_stat_str(&pf
->hw
, ret
),
6482 i40e_aq_str(&pf
->hw
, pf
->hw
.aq
.asq_last_status
));
6487 * i40e_disable_pf_switch_lb
6488 * @pf: pointer to the PF structure
6490 * disable switch loop back or die - no point in a return value
6492 static void i40e_disable_pf_switch_lb(struct i40e_pf
*pf
)
6494 struct i40e_vsi
*vsi
= pf
->vsi
[pf
->lan_vsi
];
6495 struct i40e_vsi_context ctxt
;
6498 ctxt
.seid
= pf
->main_vsi_seid
;
6499 ctxt
.pf_num
= pf
->hw
.pf_id
;
6501 ret
= i40e_aq_get_vsi_params(&pf
->hw
, &ctxt
, NULL
);
6503 dev_info(&pf
->pdev
->dev
,
6504 "couldn't get PF vsi config, err %s aq_err %s\n",
6505 i40e_stat_str(&pf
->hw
, ret
),
6506 i40e_aq_str(&pf
->hw
, pf
->hw
.aq
.asq_last_status
));
6509 ctxt
.flags
= I40E_AQ_VSI_TYPE_PF
;
6510 ctxt
.info
.valid_sections
= cpu_to_le16(I40E_AQ_VSI_PROP_SWITCH_VALID
);
6511 ctxt
.info
.switch_id
&= ~cpu_to_le16(I40E_AQ_VSI_SW_ID_FLAG_ALLOW_LB
);
6513 ret
= i40e_aq_update_vsi_params(&vsi
->back
->hw
, &ctxt
, NULL
);
6515 dev_info(&pf
->pdev
->dev
,
6516 "update vsi switch failed, err %s aq_err %s\n",
6517 i40e_stat_str(&pf
->hw
, ret
),
6518 i40e_aq_str(&pf
->hw
, pf
->hw
.aq
.asq_last_status
));
6523 * i40e_config_bridge_mode - Configure the HW bridge mode
6524 * @veb: pointer to the bridge instance
6526 * Configure the loop back mode for the LAN VSI that is downlink to the
6527 * specified HW bridge instance. It is expected this function is called
6528 * when a new HW bridge is instantiated.
6530 static void i40e_config_bridge_mode(struct i40e_veb
*veb
)
6532 struct i40e_pf
*pf
= veb
->pf
;
6534 if (pf
->hw
.debug_mask
& I40E_DEBUG_LAN
)
6535 dev_info(&pf
->pdev
->dev
, "enabling bridge mode: %s\n",
6536 veb
->bridge_mode
== BRIDGE_MODE_VEPA
? "VEPA" : "VEB");
6537 if (veb
->bridge_mode
& BRIDGE_MODE_VEPA
)
6538 i40e_disable_pf_switch_lb(pf
);
6540 i40e_enable_pf_switch_lb(pf
);
6544 * i40e_reconstitute_veb - rebuild the VEB and anything connected to it
6545 * @veb: pointer to the VEB instance
6547 * This is a recursive function that first builds the attached VSIs then
6548 * recurses in to build the next layer of VEB. We track the connections
6549 * through our own index numbers because the seid's from the HW could
6550 * change across the reset.
6552 static int i40e_reconstitute_veb(struct i40e_veb
*veb
)
6554 struct i40e_vsi
*ctl_vsi
= NULL
;
6555 struct i40e_pf
*pf
= veb
->pf
;
6559 /* build VSI that owns this VEB, temporarily attached to base VEB */
6560 for (v
= 0; v
< pf
->num_alloc_vsi
&& !ctl_vsi
; v
++) {
6562 pf
->vsi
[v
]->veb_idx
== veb
->idx
&&
6563 pf
->vsi
[v
]->flags
& I40E_VSI_FLAG_VEB_OWNER
) {
6564 ctl_vsi
= pf
->vsi
[v
];
6569 dev_info(&pf
->pdev
->dev
,
6570 "missing owner VSI for veb_idx %d\n", veb
->idx
);
6572 goto end_reconstitute
;
6574 if (ctl_vsi
!= pf
->vsi
[pf
->lan_vsi
])
6575 ctl_vsi
->uplink_seid
= pf
->vsi
[pf
->lan_vsi
]->uplink_seid
;
6576 ret
= i40e_add_vsi(ctl_vsi
);
6578 dev_info(&pf
->pdev
->dev
,
6579 "rebuild of veb_idx %d owner VSI failed: %d\n",
6581 goto end_reconstitute
;
6583 i40e_vsi_reset_stats(ctl_vsi
);
6585 /* create the VEB in the switch and move the VSI onto the VEB */
6586 ret
= i40e_add_veb(veb
, ctl_vsi
);
6588 goto end_reconstitute
;
6590 if (pf
->flags
& I40E_FLAG_VEB_MODE_ENABLED
)
6591 veb
->bridge_mode
= BRIDGE_MODE_VEB
;
6593 veb
->bridge_mode
= BRIDGE_MODE_VEPA
;
6594 i40e_config_bridge_mode(veb
);
6596 /* create the remaining VSIs attached to this VEB */
6597 for (v
= 0; v
< pf
->num_alloc_vsi
; v
++) {
6598 if (!pf
->vsi
[v
] || pf
->vsi
[v
] == ctl_vsi
)
6601 if (pf
->vsi
[v
]->veb_idx
== veb
->idx
) {
6602 struct i40e_vsi
*vsi
= pf
->vsi
[v
];
6604 vsi
->uplink_seid
= veb
->seid
;
6605 ret
= i40e_add_vsi(vsi
);
6607 dev_info(&pf
->pdev
->dev
,
6608 "rebuild of vsi_idx %d failed: %d\n",
6610 goto end_reconstitute
;
6612 i40e_vsi_reset_stats(vsi
);
6616 /* create any VEBs attached to this VEB - RECURSION */
6617 for (veb_idx
= 0; veb_idx
< I40E_MAX_VEB
; veb_idx
++) {
6618 if (pf
->veb
[veb_idx
] && pf
->veb
[veb_idx
]->veb_idx
== veb
->idx
) {
6619 pf
->veb
[veb_idx
]->uplink_seid
= veb
->seid
;
6620 ret
= i40e_reconstitute_veb(pf
->veb
[veb_idx
]);
6631 * i40e_get_capabilities - get info about the HW
6632 * @pf: the PF struct
6634 static int i40e_get_capabilities(struct i40e_pf
*pf
)
6636 struct i40e_aqc_list_capabilities_element_resp
*cap_buf
;
6641 buf_len
= 40 * sizeof(struct i40e_aqc_list_capabilities_element_resp
);
6643 cap_buf
= kzalloc(buf_len
, GFP_KERNEL
);
6647 /* this loads the data into the hw struct for us */
6648 err
= i40e_aq_discover_capabilities(&pf
->hw
, cap_buf
, buf_len
,
6650 i40e_aqc_opc_list_func_capabilities
,
6652 /* data loaded, buffer no longer needed */
6655 if (pf
->hw
.aq
.asq_last_status
== I40E_AQ_RC_ENOMEM
) {
6656 /* retry with a larger buffer */
6657 buf_len
= data_size
;
6658 } else if (pf
->hw
.aq
.asq_last_status
!= I40E_AQ_RC_OK
) {
6659 dev_info(&pf
->pdev
->dev
,
6660 "capability discovery failed, err %s aq_err %s\n",
6661 i40e_stat_str(&pf
->hw
, err
),
6662 i40e_aq_str(&pf
->hw
,
6663 pf
->hw
.aq
.asq_last_status
));
6668 if (pf
->hw
.debug_mask
& I40E_DEBUG_USER
)
6669 dev_info(&pf
->pdev
->dev
,
6670 "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",
6671 pf
->hw
.pf_id
, pf
->hw
.func_caps
.num_vfs
,
6672 pf
->hw
.func_caps
.num_msix_vectors
,
6673 pf
->hw
.func_caps
.num_msix_vectors_vf
,
6674 pf
->hw
.func_caps
.fd_filters_guaranteed
,
6675 pf
->hw
.func_caps
.fd_filters_best_effort
,
6676 pf
->hw
.func_caps
.num_tx_qp
,
6677 pf
->hw
.func_caps
.num_vsis
);
6679 #define DEF_NUM_VSI (1 + (pf->hw.func_caps.fcoe ? 1 : 0) \
6680 + pf->hw.func_caps.num_vfs)
6681 if (pf
->hw
.revision_id
== 0 && (DEF_NUM_VSI
> pf
->hw
.func_caps
.num_vsis
)) {
6682 dev_info(&pf
->pdev
->dev
,
6683 "got num_vsis %d, setting num_vsis to %d\n",
6684 pf
->hw
.func_caps
.num_vsis
, DEF_NUM_VSI
);
6685 pf
->hw
.func_caps
.num_vsis
= DEF_NUM_VSI
;
6691 static int i40e_vsi_clear(struct i40e_vsi
*vsi
);
6694 * i40e_fdir_sb_setup - initialize the Flow Director resources for Sideband
6695 * @pf: board private structure
6697 static void i40e_fdir_sb_setup(struct i40e_pf
*pf
)
6699 struct i40e_vsi
*vsi
;
6702 /* quick workaround for an NVM issue that leaves a critical register
6705 if (!rd32(&pf
->hw
, I40E_GLQF_HKEY(0))) {
6706 static const u32 hkey
[] = {
6707 0xe640d33f, 0xcdfe98ab, 0x73fa7161, 0x0d7a7d36,
6708 0xeacb7d61, 0xaa4f05b6, 0x9c5c89ed, 0xfc425ddb,
6709 0xa4654832, 0xfc7461d4, 0x8f827619, 0xf5c63c21,
6712 for (i
= 0; i
<= I40E_GLQF_HKEY_MAX_INDEX
; i
++)
6713 wr32(&pf
->hw
, I40E_GLQF_HKEY(i
), hkey
[i
]);
6716 if (!(pf
->flags
& I40E_FLAG_FD_SB_ENABLED
))
6719 /* find existing VSI and see if it needs configuring */
6721 for (i
= 0; i
< pf
->num_alloc_vsi
; i
++) {
6722 if (pf
->vsi
[i
] && pf
->vsi
[i
]->type
== I40E_VSI_FDIR
) {
6728 /* create a new VSI if none exists */
6730 vsi
= i40e_vsi_setup(pf
, I40E_VSI_FDIR
,
6731 pf
->vsi
[pf
->lan_vsi
]->seid
, 0);
6733 dev_info(&pf
->pdev
->dev
, "Couldn't create FDir VSI\n");
6734 pf
->flags
&= ~I40E_FLAG_FD_SB_ENABLED
;
6739 i40e_vsi_setup_irqhandler(vsi
, i40e_fdir_clean_ring
);
6743 * i40e_fdir_teardown - release the Flow Director resources
6744 * @pf: board private structure
6746 static void i40e_fdir_teardown(struct i40e_pf
*pf
)
6750 i40e_fdir_filter_exit(pf
);
6751 for (i
= 0; i
< pf
->num_alloc_vsi
; i
++) {
6752 if (pf
->vsi
[i
] && pf
->vsi
[i
]->type
== I40E_VSI_FDIR
) {
6753 i40e_vsi_release(pf
->vsi
[i
]);
6760 * i40e_prep_for_reset - prep for the core to reset
6761 * @pf: board private structure
6763 * Close up the VFs and other things in prep for PF Reset.
6765 static void i40e_prep_for_reset(struct i40e_pf
*pf
)
6767 struct i40e_hw
*hw
= &pf
->hw
;
6768 i40e_status ret
= 0;
6771 clear_bit(__I40E_RESET_INTR_RECEIVED
, &pf
->state
);
6772 if (test_and_set_bit(__I40E_RESET_RECOVERY_PENDING
, &pf
->state
))
6774 if (i40e_check_asq_alive(&pf
->hw
))
6775 i40e_vc_notify_reset(pf
);
6777 dev_dbg(&pf
->pdev
->dev
, "Tearing down internal switch for reset\n");
6779 /* quiesce the VSIs and their queues that are not already DOWN */
6780 i40e_pf_quiesce_all_vsi(pf
);
6782 for (v
= 0; v
< pf
->num_alloc_vsi
; v
++) {
6784 pf
->vsi
[v
]->seid
= 0;
6787 i40e_shutdown_adminq(&pf
->hw
);
6789 /* call shutdown HMC */
6790 if (hw
->hmc
.hmc_obj
) {
6791 ret
= i40e_shutdown_lan_hmc(hw
);
6793 dev_warn(&pf
->pdev
->dev
,
6794 "shutdown_lan_hmc failed: %d\n", ret
);
6799 * i40e_send_version - update firmware with driver version
6802 static void i40e_send_version(struct i40e_pf
*pf
)
6804 struct i40e_driver_version dv
;
6806 dv
.major_version
= DRV_VERSION_MAJOR
;
6807 dv
.minor_version
= DRV_VERSION_MINOR
;
6808 dv
.build_version
= DRV_VERSION_BUILD
;
6809 dv
.subbuild_version
= 0;
6810 strlcpy(dv
.driver_string
, DRV_VERSION
, sizeof(dv
.driver_string
));
6811 i40e_aq_send_driver_version(&pf
->hw
, &dv
, NULL
);
6815 * i40e_reset_and_rebuild - reset and rebuild using a saved config
6816 * @pf: board private structure
6817 * @reinit: if the Main VSI needs to re-initialized.
6819 static void i40e_reset_and_rebuild(struct i40e_pf
*pf
, bool reinit
)
6821 struct i40e_hw
*hw
= &pf
->hw
;
6822 u8 set_fc_aq_fail
= 0;
6827 /* Now we wait for GRST to settle out.
6828 * We don't have to delete the VEBs or VSIs from the hw switch
6829 * because the reset will make them disappear.
6831 ret
= i40e_pf_reset(hw
);
6833 dev_info(&pf
->pdev
->dev
, "PF reset failed, %d\n", ret
);
6834 set_bit(__I40E_RESET_FAILED
, &pf
->state
);
6835 goto clear_recovery
;
6839 if (test_bit(__I40E_DOWN
, &pf
->state
))
6840 goto clear_recovery
;
6841 dev_dbg(&pf
->pdev
->dev
, "Rebuilding internal switch\n");
6843 /* rebuild the basics for the AdminQ, HMC, and initial HW switch */
6844 ret
= i40e_init_adminq(&pf
->hw
);
6846 dev_info(&pf
->pdev
->dev
, "Rebuild AdminQ failed, err %s aq_err %s\n",
6847 i40e_stat_str(&pf
->hw
, ret
),
6848 i40e_aq_str(&pf
->hw
, pf
->hw
.aq
.asq_last_status
));
6849 goto clear_recovery
;
6852 /* re-verify the eeprom if we just had an EMP reset */
6853 if (test_and_clear_bit(__I40E_EMP_RESET_INTR_RECEIVED
, &pf
->state
))
6854 i40e_verify_eeprom(pf
);
6856 i40e_clear_pxe_mode(hw
);
6857 ret
= i40e_get_capabilities(pf
);
6859 goto end_core_reset
;
6861 ret
= i40e_init_lan_hmc(hw
, hw
->func_caps
.num_tx_qp
,
6862 hw
->func_caps
.num_rx_qp
,
6863 pf
->fcoe_hmc_cntx_num
, pf
->fcoe_hmc_filt_num
);
6865 dev_info(&pf
->pdev
->dev
, "init_lan_hmc failed: %d\n", ret
);
6866 goto end_core_reset
;
6868 ret
= i40e_configure_lan_hmc(hw
, I40E_HMC_MODEL_DIRECT_ONLY
);
6870 dev_info(&pf
->pdev
->dev
, "configure_lan_hmc failed: %d\n", ret
);
6871 goto end_core_reset
;
6874 #ifdef CONFIG_I40E_DCB
6875 ret
= i40e_init_pf_dcb(pf
);
6877 dev_info(&pf
->pdev
->dev
, "DCB init failed %d, disabled\n", ret
);
6878 pf
->flags
&= ~I40E_FLAG_DCB_CAPABLE
;
6879 /* Continue without DCB enabled */
6881 #endif /* CONFIG_I40E_DCB */
6883 i40e_init_pf_fcoe(pf
);
6886 /* do basic switch setup */
6887 ret
= i40e_setup_pf_switch(pf
, reinit
);
6889 goto end_core_reset
;
6891 /* The driver only wants link up/down and module qualification
6892 * reports from firmware. Note the negative logic.
6894 ret
= i40e_aq_set_phy_int_mask(&pf
->hw
,
6895 ~(I40E_AQ_EVENT_LINK_UPDOWN
|
6896 I40E_AQ_EVENT_MEDIA_NA
|
6897 I40E_AQ_EVENT_MODULE_QUAL_FAIL
), NULL
);
6899 dev_info(&pf
->pdev
->dev
, "set phy mask fail, err %s aq_err %s\n",
6900 i40e_stat_str(&pf
->hw
, ret
),
6901 i40e_aq_str(&pf
->hw
, pf
->hw
.aq
.asq_last_status
));
6903 /* make sure our flow control settings are restored */
6904 ret
= i40e_set_fc(&pf
->hw
, &set_fc_aq_fail
, true);
6906 dev_dbg(&pf
->pdev
->dev
, "setting flow control: ret = %s last_status = %s\n",
6907 i40e_stat_str(&pf
->hw
, ret
),
6908 i40e_aq_str(&pf
->hw
, pf
->hw
.aq
.asq_last_status
));
6910 /* Rebuild the VSIs and VEBs that existed before reset.
6911 * They are still in our local switch element arrays, so only
6912 * need to rebuild the switch model in the HW.
6914 * If there were VEBs but the reconstitution failed, we'll try
6915 * try to recover minimal use by getting the basic PF VSI working.
6917 if (pf
->vsi
[pf
->lan_vsi
]->uplink_seid
!= pf
->mac_seid
) {
6918 dev_dbg(&pf
->pdev
->dev
, "attempting to rebuild switch\n");
6919 /* find the one VEB connected to the MAC, and find orphans */
6920 for (v
= 0; v
< I40E_MAX_VEB
; v
++) {
6924 if (pf
->veb
[v
]->uplink_seid
== pf
->mac_seid
||
6925 pf
->veb
[v
]->uplink_seid
== 0) {
6926 ret
= i40e_reconstitute_veb(pf
->veb
[v
]);
6931 /* If Main VEB failed, we're in deep doodoo,
6932 * so give up rebuilding the switch and set up
6933 * for minimal rebuild of PF VSI.
6934 * If orphan failed, we'll report the error
6935 * but try to keep going.
6937 if (pf
->veb
[v
]->uplink_seid
== pf
->mac_seid
) {
6938 dev_info(&pf
->pdev
->dev
,
6939 "rebuild of switch failed: %d, will try to set up simple PF connection\n",
6941 pf
->vsi
[pf
->lan_vsi
]->uplink_seid
6944 } else if (pf
->veb
[v
]->uplink_seid
== 0) {
6945 dev_info(&pf
->pdev
->dev
,
6946 "rebuild of orphan VEB failed: %d\n",
6953 if (pf
->vsi
[pf
->lan_vsi
]->uplink_seid
== pf
->mac_seid
) {
6954 dev_dbg(&pf
->pdev
->dev
, "attempting to rebuild PF VSI\n");
6955 /* no VEB, so rebuild only the Main VSI */
6956 ret
= i40e_add_vsi(pf
->vsi
[pf
->lan_vsi
]);
6958 dev_info(&pf
->pdev
->dev
,
6959 "rebuild of Main VSI failed: %d\n", ret
);
6960 goto end_core_reset
;
6964 /* Reconfigure hardware for allowing smaller MSS in the case
6965 * of TSO, so that we avoid the MDD being fired and causing
6966 * a reset in the case of small MSS+TSO.
6968 #define I40E_REG_MSS 0x000E64DC
6969 #define I40E_REG_MSS_MIN_MASK 0x3FF0000
6970 #define I40E_64BYTE_MSS 0x400000
6971 val
= rd32(hw
, I40E_REG_MSS
);
6972 if ((val
& I40E_REG_MSS_MIN_MASK
) > I40E_64BYTE_MSS
) {
6973 val
&= ~I40E_REG_MSS_MIN_MASK
;
6974 val
|= I40E_64BYTE_MSS
;
6975 wr32(hw
, I40E_REG_MSS
, val
);
6978 if (pf
->flags
& I40E_FLAG_RESTART_AUTONEG
) {
6980 ret
= i40e_aq_set_link_restart_an(&pf
->hw
, true, NULL
);
6982 dev_info(&pf
->pdev
->dev
, "link restart failed, err %s aq_err %s\n",
6983 i40e_stat_str(&pf
->hw
, ret
),
6984 i40e_aq_str(&pf
->hw
,
6985 pf
->hw
.aq
.asq_last_status
));
6987 /* reinit the misc interrupt */
6988 if (pf
->flags
& I40E_FLAG_MSIX_ENABLED
)
6989 ret
= i40e_setup_misc_vector(pf
);
6991 /* Add a filter to drop all Flow control frames from any VSI from being
6992 * transmitted. By doing so we stop a malicious VF from sending out
6993 * PAUSE or PFC frames and potentially controlling traffic for other
6995 * The FW can still send Flow control frames if enabled.
6997 i40e_add_filter_to_drop_tx_flow_control_frames(&pf
->hw
,
7000 /* restart the VSIs that were rebuilt and running before the reset */
7001 i40e_pf_unquiesce_all_vsi(pf
);
7003 if (pf
->num_alloc_vfs
) {
7004 for (v
= 0; v
< pf
->num_alloc_vfs
; v
++)
7005 i40e_reset_vf(&pf
->vf
[v
], true);
7008 /* tell the firmware that we're starting */
7009 i40e_send_version(pf
);
7012 clear_bit(__I40E_RESET_FAILED
, &pf
->state
);
7014 clear_bit(__I40E_RESET_RECOVERY_PENDING
, &pf
->state
);
7018 * i40e_handle_reset_warning - prep for the PF to reset, reset and rebuild
7019 * @pf: board private structure
7021 * Close up the VFs and other things in prep for a Core Reset,
7022 * then get ready to rebuild the world.
7024 static void i40e_handle_reset_warning(struct i40e_pf
*pf
)
7026 i40e_prep_for_reset(pf
);
7027 i40e_reset_and_rebuild(pf
, false);
7031 * i40e_handle_mdd_event
7032 * @pf: pointer to the PF structure
7034 * Called from the MDD irq handler to identify possibly malicious vfs
7036 static void i40e_handle_mdd_event(struct i40e_pf
*pf
)
7038 struct i40e_hw
*hw
= &pf
->hw
;
7039 bool mdd_detected
= false;
7040 bool pf_mdd_detected
= false;
7045 if (!test_bit(__I40E_MDD_EVENT_PENDING
, &pf
->state
))
7048 /* find what triggered the MDD event */
7049 reg
= rd32(hw
, I40E_GL_MDET_TX
);
7050 if (reg
& I40E_GL_MDET_TX_VALID_MASK
) {
7051 u8 pf_num
= (reg
& I40E_GL_MDET_TX_PF_NUM_MASK
) >>
7052 I40E_GL_MDET_TX_PF_NUM_SHIFT
;
7053 u16 vf_num
= (reg
& I40E_GL_MDET_TX_VF_NUM_MASK
) >>
7054 I40E_GL_MDET_TX_VF_NUM_SHIFT
;
7055 u8 event
= (reg
& I40E_GL_MDET_TX_EVENT_MASK
) >>
7056 I40E_GL_MDET_TX_EVENT_SHIFT
;
7057 u16 queue
= ((reg
& I40E_GL_MDET_TX_QUEUE_MASK
) >>
7058 I40E_GL_MDET_TX_QUEUE_SHIFT
) -
7059 pf
->hw
.func_caps
.base_queue
;
7060 if (netif_msg_tx_err(pf
))
7061 dev_info(&pf
->pdev
->dev
, "Malicious Driver Detection event 0x%02x on TX queue %d PF number 0x%02x VF number 0x%02x\n",
7062 event
, queue
, pf_num
, vf_num
);
7063 wr32(hw
, I40E_GL_MDET_TX
, 0xffffffff);
7064 mdd_detected
= true;
7066 reg
= rd32(hw
, I40E_GL_MDET_RX
);
7067 if (reg
& I40E_GL_MDET_RX_VALID_MASK
) {
7068 u8 func
= (reg
& I40E_GL_MDET_RX_FUNCTION_MASK
) >>
7069 I40E_GL_MDET_RX_FUNCTION_SHIFT
;
7070 u8 event
= (reg
& I40E_GL_MDET_RX_EVENT_MASK
) >>
7071 I40E_GL_MDET_RX_EVENT_SHIFT
;
7072 u16 queue
= ((reg
& I40E_GL_MDET_RX_QUEUE_MASK
) >>
7073 I40E_GL_MDET_RX_QUEUE_SHIFT
) -
7074 pf
->hw
.func_caps
.base_queue
;
7075 if (netif_msg_rx_err(pf
))
7076 dev_info(&pf
->pdev
->dev
, "Malicious Driver Detection event 0x%02x on RX queue %d of function 0x%02x\n",
7077 event
, queue
, func
);
7078 wr32(hw
, I40E_GL_MDET_RX
, 0xffffffff);
7079 mdd_detected
= true;
7083 reg
= rd32(hw
, I40E_PF_MDET_TX
);
7084 if (reg
& I40E_PF_MDET_TX_VALID_MASK
) {
7085 wr32(hw
, I40E_PF_MDET_TX
, 0xFFFF);
7086 dev_info(&pf
->pdev
->dev
, "TX driver issue detected, PF reset issued\n");
7087 pf_mdd_detected
= true;
7089 reg
= rd32(hw
, I40E_PF_MDET_RX
);
7090 if (reg
& I40E_PF_MDET_RX_VALID_MASK
) {
7091 wr32(hw
, I40E_PF_MDET_RX
, 0xFFFF);
7092 dev_info(&pf
->pdev
->dev
, "RX driver issue detected, PF reset issued\n");
7093 pf_mdd_detected
= true;
7095 /* Queue belongs to the PF, initiate a reset */
7096 if (pf_mdd_detected
) {
7097 set_bit(__I40E_PF_RESET_REQUESTED
, &pf
->state
);
7098 i40e_service_event_schedule(pf
);
7102 /* see if one of the VFs needs its hand slapped */
7103 for (i
= 0; i
< pf
->num_alloc_vfs
&& mdd_detected
; i
++) {
7105 reg
= rd32(hw
, I40E_VP_MDET_TX(i
));
7106 if (reg
& I40E_VP_MDET_TX_VALID_MASK
) {
7107 wr32(hw
, I40E_VP_MDET_TX(i
), 0xFFFF);
7108 vf
->num_mdd_events
++;
7109 dev_info(&pf
->pdev
->dev
, "TX driver issue detected on VF %d\n",
7113 reg
= rd32(hw
, I40E_VP_MDET_RX(i
));
7114 if (reg
& I40E_VP_MDET_RX_VALID_MASK
) {
7115 wr32(hw
, I40E_VP_MDET_RX(i
), 0xFFFF);
7116 vf
->num_mdd_events
++;
7117 dev_info(&pf
->pdev
->dev
, "RX driver issue detected on VF %d\n",
7121 if (vf
->num_mdd_events
> I40E_DEFAULT_NUM_MDD_EVENTS_ALLOWED
) {
7122 dev_info(&pf
->pdev
->dev
,
7123 "Too many MDD events on VF %d, disabled\n", i
);
7124 dev_info(&pf
->pdev
->dev
,
7125 "Use PF Control I/F to re-enable the VF\n");
7126 set_bit(I40E_VF_STAT_DISABLED
, &vf
->vf_states
);
7130 /* re-enable mdd interrupt cause */
7131 clear_bit(__I40E_MDD_EVENT_PENDING
, &pf
->state
);
7132 reg
= rd32(hw
, I40E_PFINT_ICR0_ENA
);
7133 reg
|= I40E_PFINT_ICR0_ENA_MAL_DETECT_MASK
;
7134 wr32(hw
, I40E_PFINT_ICR0_ENA
, reg
);
7139 * i40e_sync_udp_filters_subtask - Sync the VSI filter list with HW
7140 * @pf: board private structure
7142 static void i40e_sync_udp_filters_subtask(struct i40e_pf
*pf
)
7144 struct i40e_hw
*hw
= &pf
->hw
;
7149 if (!(pf
->flags
& I40E_FLAG_UDP_FILTER_SYNC
))
7152 pf
->flags
&= ~I40E_FLAG_UDP_FILTER_SYNC
;
7154 for (i
= 0; i
< I40E_MAX_PF_UDP_OFFLOAD_PORTS
; i
++) {
7155 if (pf
->pending_udp_bitmap
& BIT_ULL(i
)) {
7156 pf
->pending_udp_bitmap
&= ~BIT_ULL(i
);
7157 port
= pf
->udp_ports
[i
].index
;
7159 ret
= i40e_aq_add_udp_tunnel(hw
, ntohs(port
),
7160 pf
->udp_ports
[i
].type
,
7163 ret
= i40e_aq_del_udp_tunnel(hw
, i
, NULL
);
7166 dev_dbg(&pf
->pdev
->dev
,
7167 "%s %s port %d, index %d failed, err %s aq_err %s\n",
7168 pf
->udp_ports
[i
].type
? "vxlan" : "geneve",
7169 port
? "add" : "delete",
7171 i40e_stat_str(&pf
->hw
, ret
),
7172 i40e_aq_str(&pf
->hw
,
7173 pf
->hw
.aq
.asq_last_status
));
7174 pf
->udp_ports
[i
].index
= 0;
7181 * i40e_service_task - Run the driver's async subtasks
7182 * @work: pointer to work_struct containing our data
7184 static void i40e_service_task(struct work_struct
*work
)
7186 struct i40e_pf
*pf
= container_of(work
,
7189 unsigned long start_time
= jiffies
;
7191 /* don't bother with service tasks if a reset is in progress */
7192 if (test_bit(__I40E_RESET_RECOVERY_PENDING
, &pf
->state
)) {
7193 i40e_service_event_complete(pf
);
7197 i40e_detect_recover_hung(pf
);
7198 i40e_sync_filters_subtask(pf
);
7199 i40e_reset_subtask(pf
);
7200 i40e_handle_mdd_event(pf
);
7201 i40e_vc_process_vflr_event(pf
);
7202 i40e_watchdog_subtask(pf
);
7203 i40e_fdir_reinit_subtask(pf
);
7204 i40e_client_subtask(pf
);
7205 i40e_sync_filters_subtask(pf
);
7206 i40e_sync_udp_filters_subtask(pf
);
7207 i40e_clean_adminq_subtask(pf
);
7209 i40e_service_event_complete(pf
);
7211 /* If the tasks have taken longer than one timer cycle or there
7212 * is more work to be done, reschedule the service task now
7213 * rather than wait for the timer to tick again.
7215 if (time_after(jiffies
, (start_time
+ pf
->service_timer_period
)) ||
7216 test_bit(__I40E_ADMINQ_EVENT_PENDING
, &pf
->state
) ||
7217 test_bit(__I40E_MDD_EVENT_PENDING
, &pf
->state
) ||
7218 test_bit(__I40E_VFLR_EVENT_PENDING
, &pf
->state
))
7219 i40e_service_event_schedule(pf
);
7223 * i40e_service_timer - timer callback
7224 * @data: pointer to PF struct
7226 static void i40e_service_timer(unsigned long data
)
7228 struct i40e_pf
*pf
= (struct i40e_pf
*)data
;
7230 mod_timer(&pf
->service_timer
,
7231 round_jiffies(jiffies
+ pf
->service_timer_period
));
7232 i40e_service_event_schedule(pf
);
7236 * i40e_set_num_rings_in_vsi - Determine number of rings in the VSI
7237 * @vsi: the VSI being configured
7239 static int i40e_set_num_rings_in_vsi(struct i40e_vsi
*vsi
)
7241 struct i40e_pf
*pf
= vsi
->back
;
7243 switch (vsi
->type
) {
7245 vsi
->alloc_queue_pairs
= pf
->num_lan_qps
;
7246 vsi
->num_desc
= ALIGN(I40E_DEFAULT_NUM_DESCRIPTORS
,
7247 I40E_REQ_DESCRIPTOR_MULTIPLE
);
7248 if (pf
->flags
& I40E_FLAG_MSIX_ENABLED
)
7249 vsi
->num_q_vectors
= pf
->num_lan_msix
;
7251 vsi
->num_q_vectors
= 1;
7256 vsi
->alloc_queue_pairs
= 1;
7257 vsi
->num_desc
= ALIGN(I40E_FDIR_RING_COUNT
,
7258 I40E_REQ_DESCRIPTOR_MULTIPLE
);
7259 vsi
->num_q_vectors
= pf
->num_fdsb_msix
;
7262 case I40E_VSI_VMDQ2
:
7263 vsi
->alloc_queue_pairs
= pf
->num_vmdq_qps
;
7264 vsi
->num_desc
= ALIGN(I40E_DEFAULT_NUM_DESCRIPTORS
,
7265 I40E_REQ_DESCRIPTOR_MULTIPLE
);
7266 vsi
->num_q_vectors
= pf
->num_vmdq_msix
;
7269 case I40E_VSI_SRIOV
:
7270 vsi
->alloc_queue_pairs
= pf
->num_vf_qps
;
7271 vsi
->num_desc
= ALIGN(I40E_DEFAULT_NUM_DESCRIPTORS
,
7272 I40E_REQ_DESCRIPTOR_MULTIPLE
);
7277 vsi
->alloc_queue_pairs
= pf
->num_fcoe_qps
;
7278 vsi
->num_desc
= ALIGN(I40E_DEFAULT_NUM_DESCRIPTORS
,
7279 I40E_REQ_DESCRIPTOR_MULTIPLE
);
7280 vsi
->num_q_vectors
= pf
->num_fcoe_msix
;
7283 #endif /* I40E_FCOE */
7293 * i40e_vsi_alloc_arrays - Allocate queue and vector pointer arrays for the vsi
7294 * @type: VSI pointer
7295 * @alloc_qvectors: a bool to specify if q_vectors need to be allocated.
7297 * On error: returns error code (negative)
7298 * On success: returns 0
7300 static int i40e_vsi_alloc_arrays(struct i40e_vsi
*vsi
, bool alloc_qvectors
)
7305 /* allocate memory for both Tx and Rx ring pointers */
7306 size
= sizeof(struct i40e_ring
*) * vsi
->alloc_queue_pairs
* 2;
7307 vsi
->tx_rings
= kzalloc(size
, GFP_KERNEL
);
7310 vsi
->rx_rings
= &vsi
->tx_rings
[vsi
->alloc_queue_pairs
];
7312 if (alloc_qvectors
) {
7313 /* allocate memory for q_vector pointers */
7314 size
= sizeof(struct i40e_q_vector
*) * vsi
->num_q_vectors
;
7315 vsi
->q_vectors
= kzalloc(size
, GFP_KERNEL
);
7316 if (!vsi
->q_vectors
) {
7324 kfree(vsi
->tx_rings
);
7329 * i40e_vsi_mem_alloc - Allocates the next available struct vsi in the PF
7330 * @pf: board private structure
7331 * @type: type of VSI
7333 * On error: returns error code (negative)
7334 * On success: returns vsi index in PF (positive)
7336 static int i40e_vsi_mem_alloc(struct i40e_pf
*pf
, enum i40e_vsi_type type
)
7339 struct i40e_vsi
*vsi
;
7343 /* Need to protect the allocation of the VSIs at the PF level */
7344 mutex_lock(&pf
->switch_mutex
);
7346 /* VSI list may be fragmented if VSI creation/destruction has
7347 * been happening. We can afford to do a quick scan to look
7348 * for any free VSIs in the list.
7350 * find next empty vsi slot, looping back around if necessary
7353 while (i
< pf
->num_alloc_vsi
&& pf
->vsi
[i
])
7355 if (i
>= pf
->num_alloc_vsi
) {
7357 while (i
< pf
->next_vsi
&& pf
->vsi
[i
])
7361 if (i
< pf
->num_alloc_vsi
&& !pf
->vsi
[i
]) {
7362 vsi_idx
= i
; /* Found one! */
7365 goto unlock_pf
; /* out of VSI slots! */
7369 vsi
= kzalloc(sizeof(*vsi
), GFP_KERNEL
);
7376 set_bit(__I40E_DOWN
, &vsi
->state
);
7379 vsi
->int_rate_limit
= 0;
7380 vsi
->rss_table_size
= (vsi
->type
== I40E_VSI_MAIN
) ?
7381 pf
->rss_table_size
: 64;
7382 vsi
->netdev_registered
= false;
7383 vsi
->work_limit
= I40E_DEFAULT_IRQ_WORK
;
7384 INIT_LIST_HEAD(&vsi
->mac_filter_list
);
7385 vsi
->irqs_ready
= false;
7387 ret
= i40e_set_num_rings_in_vsi(vsi
);
7391 ret
= i40e_vsi_alloc_arrays(vsi
, true);
7395 /* Setup default MSIX irq handler for VSI */
7396 i40e_vsi_setup_irqhandler(vsi
, i40e_msix_clean_rings
);
7398 /* Initialize VSI lock */
7399 spin_lock_init(&vsi
->mac_filter_list_lock
);
7400 pf
->vsi
[vsi_idx
] = vsi
;
7405 pf
->next_vsi
= i
- 1;
7408 mutex_unlock(&pf
->switch_mutex
);
7413 * i40e_vsi_free_arrays - Free queue and vector pointer arrays for the VSI
7414 * @type: VSI pointer
7415 * @free_qvectors: a bool to specify if q_vectors need to be freed.
7417 * On error: returns error code (negative)
7418 * On success: returns 0
7420 static void i40e_vsi_free_arrays(struct i40e_vsi
*vsi
, bool free_qvectors
)
7422 /* free the ring and vector containers */
7423 if (free_qvectors
) {
7424 kfree(vsi
->q_vectors
);
7425 vsi
->q_vectors
= NULL
;
7427 kfree(vsi
->tx_rings
);
7428 vsi
->tx_rings
= NULL
;
7429 vsi
->rx_rings
= NULL
;
7433 * i40e_clear_rss_config_user - clear the user configured RSS hash keys
7435 * @vsi: Pointer to VSI structure
7437 static void i40e_clear_rss_config_user(struct i40e_vsi
*vsi
)
7442 kfree(vsi
->rss_hkey_user
);
7443 vsi
->rss_hkey_user
= NULL
;
7445 kfree(vsi
->rss_lut_user
);
7446 vsi
->rss_lut_user
= NULL
;
7450 * i40e_vsi_clear - Deallocate the VSI provided
7451 * @vsi: the VSI being un-configured
7453 static int i40e_vsi_clear(struct i40e_vsi
*vsi
)
7464 mutex_lock(&pf
->switch_mutex
);
7465 if (!pf
->vsi
[vsi
->idx
]) {
7466 dev_err(&pf
->pdev
->dev
, "pf->vsi[%d] is NULL, just free vsi[%d](%p,type %d)\n",
7467 vsi
->idx
, vsi
->idx
, vsi
, vsi
->type
);
7471 if (pf
->vsi
[vsi
->idx
] != vsi
) {
7472 dev_err(&pf
->pdev
->dev
,
7473 "pf->vsi[%d](%p, type %d) != vsi[%d](%p,type %d): no free!\n",
7474 pf
->vsi
[vsi
->idx
]->idx
,
7476 pf
->vsi
[vsi
->idx
]->type
,
7477 vsi
->idx
, vsi
, vsi
->type
);
7481 /* updates the PF for this cleared vsi */
7482 i40e_put_lump(pf
->qp_pile
, vsi
->base_queue
, vsi
->idx
);
7483 i40e_put_lump(pf
->irq_pile
, vsi
->base_vector
, vsi
->idx
);
7485 i40e_vsi_free_arrays(vsi
, true);
7486 i40e_clear_rss_config_user(vsi
);
7488 pf
->vsi
[vsi
->idx
] = NULL
;
7489 if (vsi
->idx
< pf
->next_vsi
)
7490 pf
->next_vsi
= vsi
->idx
;
7493 mutex_unlock(&pf
->switch_mutex
);
7501 * i40e_vsi_clear_rings - Deallocates the Rx and Tx rings for the provided VSI
7502 * @vsi: the VSI being cleaned
7504 static void i40e_vsi_clear_rings(struct i40e_vsi
*vsi
)
7508 if (vsi
->tx_rings
&& vsi
->tx_rings
[0]) {
7509 for (i
= 0; i
< vsi
->alloc_queue_pairs
; i
++) {
7510 kfree_rcu(vsi
->tx_rings
[i
], rcu
);
7511 vsi
->tx_rings
[i
] = NULL
;
7512 vsi
->rx_rings
[i
] = NULL
;
7518 * i40e_alloc_rings - Allocates the Rx and Tx rings for the provided VSI
7519 * @vsi: the VSI being configured
7521 static int i40e_alloc_rings(struct i40e_vsi
*vsi
)
7523 struct i40e_ring
*tx_ring
, *rx_ring
;
7524 struct i40e_pf
*pf
= vsi
->back
;
7527 /* Set basic values in the rings to be used later during open() */
7528 for (i
= 0; i
< vsi
->alloc_queue_pairs
; i
++) {
7529 /* allocate space for both Tx and Rx in one shot */
7530 tx_ring
= kzalloc(sizeof(struct i40e_ring
) * 2, GFP_KERNEL
);
7534 tx_ring
->queue_index
= i
;
7535 tx_ring
->reg_idx
= vsi
->base_queue
+ i
;
7536 tx_ring
->ring_active
= false;
7538 tx_ring
->netdev
= vsi
->netdev
;
7539 tx_ring
->dev
= &pf
->pdev
->dev
;
7540 tx_ring
->count
= vsi
->num_desc
;
7542 tx_ring
->dcb_tc
= 0;
7543 if (vsi
->back
->flags
& I40E_FLAG_WB_ON_ITR_CAPABLE
)
7544 tx_ring
->flags
= I40E_TXR_FLAGS_WB_ON_ITR
;
7545 tx_ring
->tx_itr_setting
= pf
->tx_itr_default
;
7546 vsi
->tx_rings
[i
] = tx_ring
;
7548 rx_ring
= &tx_ring
[1];
7549 rx_ring
->queue_index
= i
;
7550 rx_ring
->reg_idx
= vsi
->base_queue
+ i
;
7551 rx_ring
->ring_active
= false;
7553 rx_ring
->netdev
= vsi
->netdev
;
7554 rx_ring
->dev
= &pf
->pdev
->dev
;
7555 rx_ring
->count
= vsi
->num_desc
;
7557 rx_ring
->dcb_tc
= 0;
7558 rx_ring
->rx_itr_setting
= pf
->rx_itr_default
;
7559 vsi
->rx_rings
[i
] = rx_ring
;
7565 i40e_vsi_clear_rings(vsi
);
7570 * i40e_reserve_msix_vectors - Reserve MSI-X vectors in the kernel
7571 * @pf: board private structure
7572 * @vectors: the number of MSI-X vectors to request
7574 * Returns the number of vectors reserved, or error
7576 static int i40e_reserve_msix_vectors(struct i40e_pf
*pf
, int vectors
)
7578 vectors
= pci_enable_msix_range(pf
->pdev
, pf
->msix_entries
,
7579 I40E_MIN_MSIX
, vectors
);
7581 dev_info(&pf
->pdev
->dev
,
7582 "MSI-X vector reservation failed: %d\n", vectors
);
7590 * i40e_init_msix - Setup the MSIX capability
7591 * @pf: board private structure
7593 * Work with the OS to set up the MSIX vectors needed.
7595 * Returns the number of vectors reserved or negative on failure
7597 static int i40e_init_msix(struct i40e_pf
*pf
)
7599 struct i40e_hw
*hw
= &pf
->hw
;
7603 int iwarp_requested
= 0;
7605 if (!(pf
->flags
& I40E_FLAG_MSIX_ENABLED
))
7608 /* The number of vectors we'll request will be comprised of:
7609 * - Add 1 for "other" cause for Admin Queue events, etc.
7610 * - The number of LAN queue pairs
7611 * - Queues being used for RSS.
7612 * We don't need as many as max_rss_size vectors.
7613 * use rss_size instead in the calculation since that
7614 * is governed by number of cpus in the system.
7615 * - assumes symmetric Tx/Rx pairing
7616 * - The number of VMDq pairs
7617 * - The CPU count within the NUMA node if iWARP is enabled
7619 * - The number of FCOE qps.
7621 * Once we count this up, try the request.
7623 * If we can't get what we want, we'll simplify to nearly nothing
7624 * and try again. If that still fails, we punt.
7626 vectors_left
= hw
->func_caps
.num_msix_vectors
;
7629 /* reserve one vector for miscellaneous handler */
7635 /* reserve vectors for the main PF traffic queues */
7636 pf
->num_lan_msix
= min_t(int, num_online_cpus(), vectors_left
);
7637 vectors_left
-= pf
->num_lan_msix
;
7638 v_budget
+= pf
->num_lan_msix
;
7640 /* reserve one vector for sideband flow director */
7641 if (pf
->flags
& I40E_FLAG_FD_SB_ENABLED
) {
7643 pf
->num_fdsb_msix
= 1;
7647 pf
->num_fdsb_msix
= 0;
7648 pf
->flags
&= ~I40E_FLAG_FD_SB_ENABLED
;
7653 /* can we reserve enough for FCoE? */
7654 if (pf
->flags
& I40E_FLAG_FCOE_ENABLED
) {
7656 pf
->num_fcoe_msix
= 0;
7657 else if (vectors_left
>= pf
->num_fcoe_qps
)
7658 pf
->num_fcoe_msix
= pf
->num_fcoe_qps
;
7660 pf
->num_fcoe_msix
= 1;
7661 v_budget
+= pf
->num_fcoe_msix
;
7662 vectors_left
-= pf
->num_fcoe_msix
;
7666 /* can we reserve enough for iWARP? */
7667 if (pf
->flags
& I40E_FLAG_IWARP_ENABLED
) {
7669 pf
->num_iwarp_msix
= 0;
7670 else if (vectors_left
< pf
->num_iwarp_msix
)
7671 pf
->num_iwarp_msix
= 1;
7672 v_budget
+= pf
->num_iwarp_msix
;
7673 vectors_left
-= pf
->num_iwarp_msix
;
7676 /* any vectors left over go for VMDq support */
7677 if (pf
->flags
& I40E_FLAG_VMDQ_ENABLED
) {
7678 int vmdq_vecs_wanted
= pf
->num_vmdq_vsis
* pf
->num_vmdq_qps
;
7679 int vmdq_vecs
= min_t(int, vectors_left
, vmdq_vecs_wanted
);
7681 /* if we're short on vectors for what's desired, we limit
7682 * the queues per vmdq. If this is still more than are
7683 * available, the user will need to change the number of
7684 * queues/vectors used by the PF later with the ethtool
7687 if (vmdq_vecs
< vmdq_vecs_wanted
)
7688 pf
->num_vmdq_qps
= 1;
7689 pf
->num_vmdq_msix
= pf
->num_vmdq_qps
;
7691 v_budget
+= vmdq_vecs
;
7692 vectors_left
-= vmdq_vecs
;
7695 pf
->msix_entries
= kcalloc(v_budget
, sizeof(struct msix_entry
),
7697 if (!pf
->msix_entries
)
7700 for (i
= 0; i
< v_budget
; i
++)
7701 pf
->msix_entries
[i
].entry
= i
;
7702 v_actual
= i40e_reserve_msix_vectors(pf
, v_budget
);
7704 if (v_actual
!= v_budget
) {
7705 /* If we have limited resources, we will start with no vectors
7706 * for the special features and then allocate vectors to some
7707 * of these features based on the policy and at the end disable
7708 * the features that did not get any vectors.
7710 iwarp_requested
= pf
->num_iwarp_msix
;
7711 pf
->num_iwarp_msix
= 0;
7713 pf
->num_fcoe_qps
= 0;
7714 pf
->num_fcoe_msix
= 0;
7716 pf
->num_vmdq_msix
= 0;
7719 if (v_actual
< I40E_MIN_MSIX
) {
7720 pf
->flags
&= ~I40E_FLAG_MSIX_ENABLED
;
7721 kfree(pf
->msix_entries
);
7722 pf
->msix_entries
= NULL
;
7725 } else if (v_actual
== I40E_MIN_MSIX
) {
7726 /* Adjust for minimal MSIX use */
7727 pf
->num_vmdq_vsis
= 0;
7728 pf
->num_vmdq_qps
= 0;
7729 pf
->num_lan_qps
= 1;
7730 pf
->num_lan_msix
= 1;
7732 } else if (v_actual
!= v_budget
) {
7735 /* reserve the misc vector */
7738 /* Scale vector usage down */
7739 pf
->num_vmdq_msix
= 1; /* force VMDqs to only one vector */
7740 pf
->num_vmdq_vsis
= 1;
7741 pf
->num_vmdq_qps
= 1;
7742 pf
->flags
&= ~I40E_FLAG_FD_SB_ENABLED
;
7744 /* partition out the remaining vectors */
7747 pf
->num_lan_msix
= 1;
7750 if (pf
->flags
& I40E_FLAG_IWARP_ENABLED
) {
7751 pf
->num_lan_msix
= 1;
7752 pf
->num_iwarp_msix
= 1;
7754 pf
->num_lan_msix
= 2;
7757 /* give one vector to FCoE */
7758 if (pf
->flags
& I40E_FLAG_FCOE_ENABLED
) {
7759 pf
->num_lan_msix
= 1;
7760 pf
->num_fcoe_msix
= 1;
7765 if (pf
->flags
& I40E_FLAG_IWARP_ENABLED
) {
7766 pf
->num_iwarp_msix
= min_t(int, (vec
/ 3),
7768 pf
->num_vmdq_vsis
= min_t(int, (vec
/ 3),
7769 I40E_DEFAULT_NUM_VMDQ_VSI
);
7771 pf
->num_vmdq_vsis
= min_t(int, (vec
/ 2),
7772 I40E_DEFAULT_NUM_VMDQ_VSI
);
7774 pf
->num_lan_msix
= min_t(int,
7775 (vec
- (pf
->num_iwarp_msix
+ pf
->num_vmdq_vsis
)),
7778 /* give one vector to FCoE */
7779 if (pf
->flags
& I40E_FLAG_FCOE_ENABLED
) {
7780 pf
->num_fcoe_msix
= 1;
7788 if ((pf
->flags
& I40E_FLAG_VMDQ_ENABLED
) &&
7789 (pf
->num_vmdq_msix
== 0)) {
7790 dev_info(&pf
->pdev
->dev
, "VMDq disabled, not enough MSI-X vectors\n");
7791 pf
->flags
&= ~I40E_FLAG_VMDQ_ENABLED
;
7794 if ((pf
->flags
& I40E_FLAG_IWARP_ENABLED
) &&
7795 (pf
->num_iwarp_msix
== 0)) {
7796 dev_info(&pf
->pdev
->dev
, "IWARP disabled, not enough MSI-X vectors\n");
7797 pf
->flags
&= ~I40E_FLAG_IWARP_ENABLED
;
7801 if ((pf
->flags
& I40E_FLAG_FCOE_ENABLED
) && (pf
->num_fcoe_msix
== 0)) {
7802 dev_info(&pf
->pdev
->dev
, "FCOE disabled, not enough MSI-X vectors\n");
7803 pf
->flags
&= ~I40E_FLAG_FCOE_ENABLED
;
7810 * i40e_vsi_alloc_q_vector - Allocate memory for a single interrupt vector
7811 * @vsi: the VSI being configured
7812 * @v_idx: index of the vector in the vsi struct
7813 * @cpu: cpu to be used on affinity_mask
7815 * We allocate one q_vector. If allocation fails we return -ENOMEM.
7817 static int i40e_vsi_alloc_q_vector(struct i40e_vsi
*vsi
, int v_idx
, int cpu
)
7819 struct i40e_q_vector
*q_vector
;
7821 /* allocate q_vector */
7822 q_vector
= kzalloc(sizeof(struct i40e_q_vector
), GFP_KERNEL
);
7826 q_vector
->vsi
= vsi
;
7827 q_vector
->v_idx
= v_idx
;
7828 cpumask_set_cpu(cpu
, &q_vector
->affinity_mask
);
7831 netif_napi_add(vsi
->netdev
, &q_vector
->napi
,
7832 i40e_napi_poll
, NAPI_POLL_WEIGHT
);
7834 q_vector
->rx
.latency_range
= I40E_LOW_LATENCY
;
7835 q_vector
->tx
.latency_range
= I40E_LOW_LATENCY
;
7837 /* tie q_vector and vsi together */
7838 vsi
->q_vectors
[v_idx
] = q_vector
;
7844 * i40e_vsi_alloc_q_vectors - Allocate memory for interrupt vectors
7845 * @vsi: the VSI being configured
7847 * We allocate one q_vector per queue interrupt. If allocation fails we
7850 static int i40e_vsi_alloc_q_vectors(struct i40e_vsi
*vsi
)
7852 struct i40e_pf
*pf
= vsi
->back
;
7853 int err
, v_idx
, num_q_vectors
, current_cpu
;
7855 /* if not MSIX, give the one vector only to the LAN VSI */
7856 if (pf
->flags
& I40E_FLAG_MSIX_ENABLED
)
7857 num_q_vectors
= vsi
->num_q_vectors
;
7858 else if (vsi
== pf
->vsi
[pf
->lan_vsi
])
7863 current_cpu
= cpumask_first(cpu_online_mask
);
7865 for (v_idx
= 0; v_idx
< num_q_vectors
; v_idx
++) {
7866 err
= i40e_vsi_alloc_q_vector(vsi
, v_idx
, current_cpu
);
7869 current_cpu
= cpumask_next(current_cpu
, cpu_online_mask
);
7870 if (unlikely(current_cpu
>= nr_cpu_ids
))
7871 current_cpu
= cpumask_first(cpu_online_mask
);
7878 i40e_free_q_vector(vsi
, v_idx
);
7884 * i40e_init_interrupt_scheme - Determine proper interrupt scheme
7885 * @pf: board private structure to initialize
7887 static int i40e_init_interrupt_scheme(struct i40e_pf
*pf
)
7892 if (pf
->flags
& I40E_FLAG_MSIX_ENABLED
) {
7893 vectors
= i40e_init_msix(pf
);
7895 pf
->flags
&= ~(I40E_FLAG_MSIX_ENABLED
|
7896 I40E_FLAG_IWARP_ENABLED
|
7898 I40E_FLAG_FCOE_ENABLED
|
7900 I40E_FLAG_RSS_ENABLED
|
7901 I40E_FLAG_DCB_CAPABLE
|
7902 I40E_FLAG_DCB_ENABLED
|
7903 I40E_FLAG_SRIOV_ENABLED
|
7904 I40E_FLAG_FD_SB_ENABLED
|
7905 I40E_FLAG_FD_ATR_ENABLED
|
7906 I40E_FLAG_VMDQ_ENABLED
);
7908 /* rework the queue expectations without MSIX */
7909 i40e_determine_queue_usage(pf
);
7913 if (!(pf
->flags
& I40E_FLAG_MSIX_ENABLED
) &&
7914 (pf
->flags
& I40E_FLAG_MSI_ENABLED
)) {
7915 dev_info(&pf
->pdev
->dev
, "MSI-X not available, trying MSI\n");
7916 vectors
= pci_enable_msi(pf
->pdev
);
7918 dev_info(&pf
->pdev
->dev
, "MSI init failed - %d\n",
7920 pf
->flags
&= ~I40E_FLAG_MSI_ENABLED
;
7922 vectors
= 1; /* one MSI or Legacy vector */
7925 if (!(pf
->flags
& (I40E_FLAG_MSIX_ENABLED
| I40E_FLAG_MSI_ENABLED
)))
7926 dev_info(&pf
->pdev
->dev
, "MSI-X and MSI not available, falling back to Legacy IRQ\n");
7928 /* set up vector assignment tracking */
7929 size
= sizeof(struct i40e_lump_tracking
) + (sizeof(u16
) * vectors
);
7930 pf
->irq_pile
= kzalloc(size
, GFP_KERNEL
);
7931 if (!pf
->irq_pile
) {
7932 dev_err(&pf
->pdev
->dev
, "error allocating irq_pile memory\n");
7935 pf
->irq_pile
->num_entries
= vectors
;
7936 pf
->irq_pile
->search_hint
= 0;
7938 /* track first vector for misc interrupts, ignore return */
7939 (void)i40e_get_lump(pf
, pf
->irq_pile
, 1, I40E_PILE_VALID_BIT
- 1);
7945 * i40e_setup_misc_vector - Setup the misc vector to handle non queue events
7946 * @pf: board private structure
7948 * This sets up the handler for MSIX 0, which is used to manage the
7949 * non-queue interrupts, e.g. AdminQ and errors. This is not used
7950 * when in MSI or Legacy interrupt mode.
7952 static int i40e_setup_misc_vector(struct i40e_pf
*pf
)
7954 struct i40e_hw
*hw
= &pf
->hw
;
7957 /* Only request the irq if this is the first time through, and
7958 * not when we're rebuilding after a Reset
7960 if (!test_bit(__I40E_RESET_RECOVERY_PENDING
, &pf
->state
)) {
7961 err
= request_irq(pf
->msix_entries
[0].vector
,
7962 i40e_intr
, 0, pf
->int_name
, pf
);
7964 dev_info(&pf
->pdev
->dev
,
7965 "request_irq for %s failed: %d\n",
7971 i40e_enable_misc_int_causes(pf
);
7973 /* associate no queues to the misc vector */
7974 wr32(hw
, I40E_PFINT_LNKLST0
, I40E_QUEUE_END_OF_LIST
);
7975 wr32(hw
, I40E_PFINT_ITR0(I40E_RX_ITR
), I40E_ITR_8K
);
7979 i40e_irq_dynamic_enable_icr0(pf
, true);
7985 * i40e_config_rss_aq - Prepare for RSS using AQ commands
7986 * @vsi: vsi structure
7987 * @seed: RSS hash seed
7989 static int i40e_config_rss_aq(struct i40e_vsi
*vsi
, const u8
*seed
,
7990 u8
*lut
, u16 lut_size
)
7992 struct i40e_pf
*pf
= vsi
->back
;
7993 struct i40e_hw
*hw
= &pf
->hw
;
7997 struct i40e_aqc_get_set_rss_key_data
*seed_dw
=
7998 (struct i40e_aqc_get_set_rss_key_data
*)seed
;
7999 ret
= i40e_aq_set_rss_key(hw
, vsi
->id
, seed_dw
);
8001 dev_info(&pf
->pdev
->dev
,
8002 "Cannot set RSS key, err %s aq_err %s\n",
8003 i40e_stat_str(hw
, ret
),
8004 i40e_aq_str(hw
, hw
->aq
.asq_last_status
));
8009 bool pf_lut
= vsi
->type
== I40E_VSI_MAIN
? true : false;
8011 ret
= i40e_aq_set_rss_lut(hw
, vsi
->id
, pf_lut
, lut
, lut_size
);
8013 dev_info(&pf
->pdev
->dev
,
8014 "Cannot set RSS lut, err %s aq_err %s\n",
8015 i40e_stat_str(hw
, ret
),
8016 i40e_aq_str(hw
, hw
->aq
.asq_last_status
));
8024 * i40e_get_rss_aq - Get RSS keys and lut by using AQ commands
8025 * @vsi: Pointer to vsi structure
8026 * @seed: Buffter to store the hash keys
8027 * @lut: Buffer to store the lookup table entries
8028 * @lut_size: Size of buffer to store the lookup table entries
8030 * Return 0 on success, negative on failure
8032 static int i40e_get_rss_aq(struct i40e_vsi
*vsi
, const u8
*seed
,
8033 u8
*lut
, u16 lut_size
)
8035 struct i40e_pf
*pf
= vsi
->back
;
8036 struct i40e_hw
*hw
= &pf
->hw
;
8040 ret
= i40e_aq_get_rss_key(hw
, vsi
->id
,
8041 (struct i40e_aqc_get_set_rss_key_data
*)seed
);
8043 dev_info(&pf
->pdev
->dev
,
8044 "Cannot get RSS key, err %s aq_err %s\n",
8045 i40e_stat_str(&pf
->hw
, ret
),
8046 i40e_aq_str(&pf
->hw
,
8047 pf
->hw
.aq
.asq_last_status
));
8053 bool pf_lut
= vsi
->type
== I40E_VSI_MAIN
? true : false;
8055 ret
= i40e_aq_get_rss_lut(hw
, vsi
->id
, pf_lut
, lut
, lut_size
);
8057 dev_info(&pf
->pdev
->dev
,
8058 "Cannot get RSS lut, err %s aq_err %s\n",
8059 i40e_stat_str(&pf
->hw
, ret
),
8060 i40e_aq_str(&pf
->hw
,
8061 pf
->hw
.aq
.asq_last_status
));
8070 * i40e_vsi_config_rss - Prepare for VSI(VMDq) RSS if used
8071 * @vsi: VSI structure
8073 static int i40e_vsi_config_rss(struct i40e_vsi
*vsi
)
8075 u8 seed
[I40E_HKEY_ARRAY_SIZE
];
8076 struct i40e_pf
*pf
= vsi
->back
;
8080 if (!(pf
->flags
& I40E_FLAG_RSS_AQ_CAPABLE
))
8084 vsi
->rss_size
= min_t(int, pf
->alloc_rss_size
,
8085 vsi
->num_queue_pairs
);
8089 lut
= kzalloc(vsi
->rss_table_size
, GFP_KERNEL
);
8092 /* Use the user configured hash keys and lookup table if there is one,
8093 * otherwise use default
8095 if (vsi
->rss_lut_user
)
8096 memcpy(lut
, vsi
->rss_lut_user
, vsi
->rss_table_size
);
8098 i40e_fill_rss_lut(pf
, lut
, vsi
->rss_table_size
, vsi
->rss_size
);
8099 if (vsi
->rss_hkey_user
)
8100 memcpy(seed
, vsi
->rss_hkey_user
, I40E_HKEY_ARRAY_SIZE
);
8102 netdev_rss_key_fill((void *)seed
, I40E_HKEY_ARRAY_SIZE
);
8103 ret
= i40e_config_rss_aq(vsi
, seed
, lut
, vsi
->rss_table_size
);
8110 * i40e_config_rss_reg - Configure RSS keys and lut by writing registers
8111 * @vsi: Pointer to vsi structure
8112 * @seed: RSS hash seed
8113 * @lut: Lookup table
8114 * @lut_size: Lookup table size
8116 * Returns 0 on success, negative on failure
8118 static int i40e_config_rss_reg(struct i40e_vsi
*vsi
, const u8
*seed
,
8119 const u8
*lut
, u16 lut_size
)
8121 struct i40e_pf
*pf
= vsi
->back
;
8122 struct i40e_hw
*hw
= &pf
->hw
;
8123 u16 vf_id
= vsi
->vf_id
;
8126 /* Fill out hash function seed */
8128 u32
*seed_dw
= (u32
*)seed
;
8130 if (vsi
->type
== I40E_VSI_MAIN
) {
8131 for (i
= 0; i
<= I40E_PFQF_HKEY_MAX_INDEX
; i
++)
8132 i40e_write_rx_ctl(hw
, I40E_PFQF_HKEY(i
),
8134 } else if (vsi
->type
== I40E_VSI_SRIOV
) {
8135 for (i
= 0; i
<= I40E_VFQF_HKEY1_MAX_INDEX
; i
++)
8136 i40e_write_rx_ctl(hw
,
8137 I40E_VFQF_HKEY1(i
, vf_id
),
8140 dev_err(&pf
->pdev
->dev
, "Cannot set RSS seed - invalid VSI type\n");
8145 u32
*lut_dw
= (u32
*)lut
;
8147 if (vsi
->type
== I40E_VSI_MAIN
) {
8148 if (lut_size
!= I40E_HLUT_ARRAY_SIZE
)
8150 for (i
= 0; i
<= I40E_PFQF_HLUT_MAX_INDEX
; i
++)
8151 wr32(hw
, I40E_PFQF_HLUT(i
), lut_dw
[i
]);
8152 } else if (vsi
->type
== I40E_VSI_SRIOV
) {
8153 if (lut_size
!= I40E_VF_HLUT_ARRAY_SIZE
)
8155 for (i
= 0; i
<= I40E_VFQF_HLUT_MAX_INDEX
; i
++)
8156 i40e_write_rx_ctl(hw
,
8157 I40E_VFQF_HLUT1(i
, vf_id
),
8160 dev_err(&pf
->pdev
->dev
, "Cannot set RSS LUT - invalid VSI type\n");
8169 * i40e_get_rss_reg - Get the RSS keys and lut by reading registers
8170 * @vsi: Pointer to VSI structure
8171 * @seed: Buffer to store the keys
8172 * @lut: Buffer to store the lookup table entries
8173 * @lut_size: Size of buffer to store the lookup table entries
8175 * Returns 0 on success, negative on failure
8177 static int i40e_get_rss_reg(struct i40e_vsi
*vsi
, u8
*seed
,
8178 u8
*lut
, u16 lut_size
)
8180 struct i40e_pf
*pf
= vsi
->back
;
8181 struct i40e_hw
*hw
= &pf
->hw
;
8185 u32
*seed_dw
= (u32
*)seed
;
8187 for (i
= 0; i
<= I40E_PFQF_HKEY_MAX_INDEX
; i
++)
8188 seed_dw
[i
] = i40e_read_rx_ctl(hw
, I40E_PFQF_HKEY(i
));
8191 u32
*lut_dw
= (u32
*)lut
;
8193 if (lut_size
!= I40E_HLUT_ARRAY_SIZE
)
8195 for (i
= 0; i
<= I40E_PFQF_HLUT_MAX_INDEX
; i
++)
8196 lut_dw
[i
] = rd32(hw
, I40E_PFQF_HLUT(i
));
8203 * i40e_config_rss - Configure RSS keys and lut
8204 * @vsi: Pointer to VSI structure
8205 * @seed: RSS hash seed
8206 * @lut: Lookup table
8207 * @lut_size: Lookup table size
8209 * Returns 0 on success, negative on failure
8211 int i40e_config_rss(struct i40e_vsi
*vsi
, u8
*seed
, u8
*lut
, u16 lut_size
)
8213 struct i40e_pf
*pf
= vsi
->back
;
8215 if (pf
->flags
& I40E_FLAG_RSS_AQ_CAPABLE
)
8216 return i40e_config_rss_aq(vsi
, seed
, lut
, lut_size
);
8218 return i40e_config_rss_reg(vsi
, seed
, lut
, lut_size
);
8222 * i40e_get_rss - Get RSS keys and lut
8223 * @vsi: Pointer to VSI structure
8224 * @seed: Buffer to store the keys
8225 * @lut: Buffer to store the lookup table entries
8226 * lut_size: Size of buffer to store the lookup table entries
8228 * Returns 0 on success, negative on failure
8230 int i40e_get_rss(struct i40e_vsi
*vsi
, u8
*seed
, u8
*lut
, u16 lut_size
)
8232 struct i40e_pf
*pf
= vsi
->back
;
8234 if (pf
->flags
& I40E_FLAG_RSS_AQ_CAPABLE
)
8235 return i40e_get_rss_aq(vsi
, seed
, lut
, lut_size
);
8237 return i40e_get_rss_reg(vsi
, seed
, lut
, lut_size
);
8241 * i40e_fill_rss_lut - Fill the RSS lookup table with default values
8242 * @pf: Pointer to board private structure
8243 * @lut: Lookup table
8244 * @rss_table_size: Lookup table size
8245 * @rss_size: Range of queue number for hashing
8247 static void i40e_fill_rss_lut(struct i40e_pf
*pf
, u8
*lut
,
8248 u16 rss_table_size
, u16 rss_size
)
8252 for (i
= 0; i
< rss_table_size
; i
++)
8253 lut
[i
] = i
% rss_size
;
8257 * i40e_pf_config_rss - Prepare for RSS if used
8258 * @pf: board private structure
8260 static int i40e_pf_config_rss(struct i40e_pf
*pf
)
8262 struct i40e_vsi
*vsi
= pf
->vsi
[pf
->lan_vsi
];
8263 u8 seed
[I40E_HKEY_ARRAY_SIZE
];
8265 struct i40e_hw
*hw
= &pf
->hw
;
8270 /* By default we enable TCP/UDP with IPv4/IPv6 ptypes */
8271 hena
= (u64
)i40e_read_rx_ctl(hw
, I40E_PFQF_HENA(0)) |
8272 ((u64
)i40e_read_rx_ctl(hw
, I40E_PFQF_HENA(1)) << 32);
8273 hena
|= i40e_pf_get_default_rss_hena(pf
);
8275 i40e_write_rx_ctl(hw
, I40E_PFQF_HENA(0), (u32
)hena
);
8276 i40e_write_rx_ctl(hw
, I40E_PFQF_HENA(1), (u32
)(hena
>> 32));
8278 /* Determine the RSS table size based on the hardware capabilities */
8279 reg_val
= i40e_read_rx_ctl(hw
, I40E_PFQF_CTL_0
);
8280 reg_val
= (pf
->rss_table_size
== 512) ?
8281 (reg_val
| I40E_PFQF_CTL_0_HASHLUTSIZE_512
) :
8282 (reg_val
& ~I40E_PFQF_CTL_0_HASHLUTSIZE_512
);
8283 i40e_write_rx_ctl(hw
, I40E_PFQF_CTL_0
, reg_val
);
8285 /* Determine the RSS size of the VSI */
8287 vsi
->rss_size
= min_t(int, pf
->alloc_rss_size
,
8288 vsi
->num_queue_pairs
);
8290 lut
= kzalloc(vsi
->rss_table_size
, GFP_KERNEL
);
8294 /* Use user configured lut if there is one, otherwise use default */
8295 if (vsi
->rss_lut_user
)
8296 memcpy(lut
, vsi
->rss_lut_user
, vsi
->rss_table_size
);
8298 i40e_fill_rss_lut(pf
, lut
, vsi
->rss_table_size
, vsi
->rss_size
);
8300 /* Use user configured hash key if there is one, otherwise
8303 if (vsi
->rss_hkey_user
)
8304 memcpy(seed
, vsi
->rss_hkey_user
, I40E_HKEY_ARRAY_SIZE
);
8306 netdev_rss_key_fill((void *)seed
, I40E_HKEY_ARRAY_SIZE
);
8307 ret
= i40e_config_rss(vsi
, seed
, lut
, vsi
->rss_table_size
);
8314 * i40e_reconfig_rss_queues - change number of queues for rss and rebuild
8315 * @pf: board private structure
8316 * @queue_count: the requested queue count for rss.
8318 * returns 0 if rss is not enabled, if enabled returns the final rss queue
8319 * count which may be different from the requested queue count.
8321 int i40e_reconfig_rss_queues(struct i40e_pf
*pf
, int queue_count
)
8323 struct i40e_vsi
*vsi
= pf
->vsi
[pf
->lan_vsi
];
8326 if (!(pf
->flags
& I40E_FLAG_RSS_ENABLED
))
8329 new_rss_size
= min_t(int, queue_count
, pf
->rss_size_max
);
8331 if (queue_count
!= vsi
->num_queue_pairs
) {
8332 vsi
->req_queue_pairs
= queue_count
;
8333 i40e_prep_for_reset(pf
);
8335 pf
->alloc_rss_size
= new_rss_size
;
8337 i40e_reset_and_rebuild(pf
, true);
8339 /* Discard the user configured hash keys and lut, if less
8340 * queues are enabled.
8342 if (queue_count
< vsi
->rss_size
) {
8343 i40e_clear_rss_config_user(vsi
);
8344 dev_dbg(&pf
->pdev
->dev
,
8345 "discard user configured hash keys and lut\n");
8348 /* Reset vsi->rss_size, as number of enabled queues changed */
8349 vsi
->rss_size
= min_t(int, pf
->alloc_rss_size
,
8350 vsi
->num_queue_pairs
);
8352 i40e_pf_config_rss(pf
);
8354 dev_info(&pf
->pdev
->dev
, "RSS count/HW max RSS count: %d/%d\n",
8355 pf
->alloc_rss_size
, pf
->rss_size_max
);
8356 return pf
->alloc_rss_size
;
8360 * i40e_get_npar_bw_setting - Retrieve BW settings for this PF partition
8361 * @pf: board private structure
8363 i40e_status
i40e_get_npar_bw_setting(struct i40e_pf
*pf
)
8366 bool min_valid
, max_valid
;
8369 status
= i40e_read_bw_from_alt_ram(&pf
->hw
, &max_bw
, &min_bw
,
8370 &min_valid
, &max_valid
);
8374 pf
->npar_min_bw
= min_bw
;
8376 pf
->npar_max_bw
= max_bw
;
8383 * i40e_set_npar_bw_setting - Set BW settings for this PF partition
8384 * @pf: board private structure
8386 i40e_status
i40e_set_npar_bw_setting(struct i40e_pf
*pf
)
8388 struct i40e_aqc_configure_partition_bw_data bw_data
;
8391 /* Set the valid bit for this PF */
8392 bw_data
.pf_valid_bits
= cpu_to_le16(BIT(pf
->hw
.pf_id
));
8393 bw_data
.max_bw
[pf
->hw
.pf_id
] = pf
->npar_max_bw
& I40E_ALT_BW_VALUE_MASK
;
8394 bw_data
.min_bw
[pf
->hw
.pf_id
] = pf
->npar_min_bw
& I40E_ALT_BW_VALUE_MASK
;
8396 /* Set the new bandwidths */
8397 status
= i40e_aq_configure_partition_bw(&pf
->hw
, &bw_data
, NULL
);
8403 * i40e_commit_npar_bw_setting - Commit BW settings for this PF partition
8404 * @pf: board private structure
8406 i40e_status
i40e_commit_npar_bw_setting(struct i40e_pf
*pf
)
8408 /* Commit temporary BW setting to permanent NVM image */
8409 enum i40e_admin_queue_err last_aq_status
;
8413 if (pf
->hw
.partition_id
!= 1) {
8414 dev_info(&pf
->pdev
->dev
,
8415 "Commit BW only works on partition 1! This is partition %d",
8416 pf
->hw
.partition_id
);
8417 ret
= I40E_NOT_SUPPORTED
;
8421 /* Acquire NVM for read access */
8422 ret
= i40e_acquire_nvm(&pf
->hw
, I40E_RESOURCE_READ
);
8423 last_aq_status
= pf
->hw
.aq
.asq_last_status
;
8425 dev_info(&pf
->pdev
->dev
,
8426 "Cannot acquire NVM for read access, err %s aq_err %s\n",
8427 i40e_stat_str(&pf
->hw
, ret
),
8428 i40e_aq_str(&pf
->hw
, last_aq_status
));
8432 /* Read word 0x10 of NVM - SW compatibility word 1 */
8433 ret
= i40e_aq_read_nvm(&pf
->hw
,
8434 I40E_SR_NVM_CONTROL_WORD
,
8435 0x10, sizeof(nvm_word
), &nvm_word
,
8437 /* Save off last admin queue command status before releasing
8440 last_aq_status
= pf
->hw
.aq
.asq_last_status
;
8441 i40e_release_nvm(&pf
->hw
);
8443 dev_info(&pf
->pdev
->dev
, "NVM read error, err %s aq_err %s\n",
8444 i40e_stat_str(&pf
->hw
, ret
),
8445 i40e_aq_str(&pf
->hw
, last_aq_status
));
8449 /* Wait a bit for NVM release to complete */
8452 /* Acquire NVM for write access */
8453 ret
= i40e_acquire_nvm(&pf
->hw
, I40E_RESOURCE_WRITE
);
8454 last_aq_status
= pf
->hw
.aq
.asq_last_status
;
8456 dev_info(&pf
->pdev
->dev
,
8457 "Cannot acquire NVM for write access, err %s aq_err %s\n",
8458 i40e_stat_str(&pf
->hw
, ret
),
8459 i40e_aq_str(&pf
->hw
, last_aq_status
));
8462 /* Write it back out unchanged to initiate update NVM,
8463 * which will force a write of the shadow (alt) RAM to
8464 * the NVM - thus storing the bandwidth values permanently.
8466 ret
= i40e_aq_update_nvm(&pf
->hw
,
8467 I40E_SR_NVM_CONTROL_WORD
,
8468 0x10, sizeof(nvm_word
),
8469 &nvm_word
, true, NULL
);
8470 /* Save off last admin queue command status before releasing
8473 last_aq_status
= pf
->hw
.aq
.asq_last_status
;
8474 i40e_release_nvm(&pf
->hw
);
8476 dev_info(&pf
->pdev
->dev
,
8477 "BW settings NOT SAVED, err %s aq_err %s\n",
8478 i40e_stat_str(&pf
->hw
, ret
),
8479 i40e_aq_str(&pf
->hw
, last_aq_status
));
8486 * i40e_sw_init - Initialize general software structures (struct i40e_pf)
8487 * @pf: board private structure to initialize
8489 * i40e_sw_init initializes the Adapter private data structure.
8490 * Fields are initialized based on PCI device information and
8491 * OS network device settings (MTU size).
8493 static int i40e_sw_init(struct i40e_pf
*pf
)
8498 pf
->msg_enable
= netif_msg_init(I40E_DEFAULT_MSG_ENABLE
,
8499 (NETIF_MSG_DRV
|NETIF_MSG_PROBE
|NETIF_MSG_LINK
));
8500 if (debug
!= -1 && debug
!= I40E_DEFAULT_MSG_ENABLE
) {
8501 if (I40E_DEBUG_USER
& debug
)
8502 pf
->hw
.debug_mask
= debug
;
8503 pf
->msg_enable
= netif_msg_init((debug
& ~I40E_DEBUG_USER
),
8504 I40E_DEFAULT_MSG_ENABLE
);
8507 /* Set default capability flags */
8508 pf
->flags
= I40E_FLAG_RX_CSUM_ENABLED
|
8509 I40E_FLAG_MSI_ENABLED
|
8510 I40E_FLAG_MSIX_ENABLED
;
8512 /* Set default ITR */
8513 pf
->rx_itr_default
= I40E_ITR_DYNAMIC
| I40E_ITR_RX_DEF
;
8514 pf
->tx_itr_default
= I40E_ITR_DYNAMIC
| I40E_ITR_TX_DEF
;
8516 /* Depending on PF configurations, it is possible that the RSS
8517 * maximum might end up larger than the available queues
8519 pf
->rss_size_max
= BIT(pf
->hw
.func_caps
.rss_table_entry_width
);
8520 pf
->alloc_rss_size
= 1;
8521 pf
->rss_table_size
= pf
->hw
.func_caps
.rss_table_size
;
8522 pf
->rss_size_max
= min_t(int, pf
->rss_size_max
,
8523 pf
->hw
.func_caps
.num_tx_qp
);
8524 if (pf
->hw
.func_caps
.rss
) {
8525 pf
->flags
|= I40E_FLAG_RSS_ENABLED
;
8526 pf
->alloc_rss_size
= min_t(int, pf
->rss_size_max
,
8530 /* MFP mode enabled */
8531 if (pf
->hw
.func_caps
.npar_enable
|| pf
->hw
.func_caps
.flex10_enable
) {
8532 pf
->flags
|= I40E_FLAG_MFP_ENABLED
;
8533 dev_info(&pf
->pdev
->dev
, "MFP mode Enabled\n");
8534 if (i40e_get_npar_bw_setting(pf
))
8535 dev_warn(&pf
->pdev
->dev
,
8536 "Could not get NPAR bw settings\n");
8538 dev_info(&pf
->pdev
->dev
,
8539 "Min BW = %8.8x, Max BW = %8.8x\n",
8540 pf
->npar_min_bw
, pf
->npar_max_bw
);
8543 /* FW/NVM is not yet fixed in this regard */
8544 if ((pf
->hw
.func_caps
.fd_filters_guaranteed
> 0) ||
8545 (pf
->hw
.func_caps
.fd_filters_best_effort
> 0)) {
8546 pf
->flags
|= I40E_FLAG_FD_ATR_ENABLED
;
8547 pf
->atr_sample_rate
= I40E_DEFAULT_ATR_SAMPLE_RATE
;
8548 if (pf
->flags
& I40E_FLAG_MFP_ENABLED
&&
8549 pf
->hw
.num_partitions
> 1)
8550 dev_info(&pf
->pdev
->dev
,
8551 "Flow Director Sideband mode Disabled in MFP mode\n");
8553 pf
->flags
|= I40E_FLAG_FD_SB_ENABLED
;
8554 pf
->fdir_pf_filter_count
=
8555 pf
->hw
.func_caps
.fd_filters_guaranteed
;
8556 pf
->hw
.fdir_shared_filter_count
=
8557 pf
->hw
.func_caps
.fd_filters_best_effort
;
8560 if (i40e_is_mac_710(&pf
->hw
) &&
8561 (((pf
->hw
.aq
.fw_maj_ver
== 4) && (pf
->hw
.aq
.fw_min_ver
< 33)) ||
8562 (pf
->hw
.aq
.fw_maj_ver
< 4))) {
8563 pf
->flags
|= I40E_FLAG_RESTART_AUTONEG
;
8564 /* No DCB support for FW < v4.33 */
8565 pf
->flags
|= I40E_FLAG_NO_DCB_SUPPORT
;
8568 /* Disable FW LLDP if FW < v4.3 */
8569 if (i40e_is_mac_710(&pf
->hw
) &&
8570 (((pf
->hw
.aq
.fw_maj_ver
== 4) && (pf
->hw
.aq
.fw_min_ver
< 3)) ||
8571 (pf
->hw
.aq
.fw_maj_ver
< 4)))
8572 pf
->flags
|= I40E_FLAG_STOP_FW_LLDP
;
8574 /* Use the FW Set LLDP MIB API if FW > v4.40 */
8575 if (i40e_is_mac_710(&pf
->hw
) &&
8576 (((pf
->hw
.aq
.fw_maj_ver
== 4) && (pf
->hw
.aq
.fw_min_ver
>= 40)) ||
8577 (pf
->hw
.aq
.fw_maj_ver
>= 5)))
8578 pf
->flags
|= I40E_FLAG_USE_SET_LLDP_MIB
;
8580 if (pf
->hw
.func_caps
.vmdq
) {
8581 pf
->num_vmdq_vsis
= I40E_DEFAULT_NUM_VMDQ_VSI
;
8582 pf
->flags
|= I40E_FLAG_VMDQ_ENABLED
;
8583 pf
->num_vmdq_qps
= i40e_default_queues_per_vmdq(pf
);
8586 if (pf
->hw
.func_caps
.iwarp
) {
8587 pf
->flags
|= I40E_FLAG_IWARP_ENABLED
;
8588 /* IWARP needs one extra vector for CQP just like MISC.*/
8589 pf
->num_iwarp_msix
= (int)num_online_cpus() + 1;
8593 i40e_init_pf_fcoe(pf
);
8595 #endif /* I40E_FCOE */
8596 #ifdef CONFIG_PCI_IOV
8597 if (pf
->hw
.func_caps
.num_vfs
&& pf
->hw
.partition_id
== 1) {
8598 pf
->num_vf_qps
= I40E_DEFAULT_QUEUES_PER_VF
;
8599 pf
->flags
|= I40E_FLAG_SRIOV_ENABLED
;
8600 pf
->num_req_vfs
= min_t(int,
8601 pf
->hw
.func_caps
.num_vfs
,
8604 #endif /* CONFIG_PCI_IOV */
8605 if (pf
->hw
.mac
.type
== I40E_MAC_X722
) {
8606 pf
->flags
|= I40E_FLAG_RSS_AQ_CAPABLE
|
8607 I40E_FLAG_128_QP_RSS_CAPABLE
|
8608 I40E_FLAG_HW_ATR_EVICT_CAPABLE
|
8609 I40E_FLAG_OUTER_UDP_CSUM_CAPABLE
|
8610 I40E_FLAG_WB_ON_ITR_CAPABLE
|
8611 I40E_FLAG_MULTIPLE_TCP_UDP_RSS_PCTYPE
|
8612 I40E_FLAG_NO_PCI_LINK_CHECK
|
8613 I40E_FLAG_100M_SGMII_CAPABLE
|
8614 I40E_FLAG_USE_SET_LLDP_MIB
|
8615 I40E_FLAG_GENEVE_OFFLOAD_CAPABLE
;
8616 } else if ((pf
->hw
.aq
.api_maj_ver
> 1) ||
8617 ((pf
->hw
.aq
.api_maj_ver
== 1) &&
8618 (pf
->hw
.aq
.api_min_ver
> 4))) {
8619 /* Supported in FW API version higher than 1.4 */
8620 pf
->flags
|= I40E_FLAG_GENEVE_OFFLOAD_CAPABLE
;
8621 pf
->auto_disable_flags
= I40E_FLAG_HW_ATR_EVICT_CAPABLE
;
8623 pf
->auto_disable_flags
= I40E_FLAG_HW_ATR_EVICT_CAPABLE
;
8626 pf
->eeprom_version
= 0xDEAD;
8627 pf
->lan_veb
= I40E_NO_VEB
;
8628 pf
->lan_vsi
= I40E_NO_VSI
;
8630 /* By default FW has this off for performance reasons */
8631 pf
->flags
&= ~I40E_FLAG_VEB_STATS_ENABLED
;
8633 /* set up queue assignment tracking */
8634 size
= sizeof(struct i40e_lump_tracking
)
8635 + (sizeof(u16
) * pf
->hw
.func_caps
.num_tx_qp
);
8636 pf
->qp_pile
= kzalloc(size
, GFP_KERNEL
);
8641 pf
->qp_pile
->num_entries
= pf
->hw
.func_caps
.num_tx_qp
;
8642 pf
->qp_pile
->search_hint
= 0;
8644 pf
->tx_timeout_recovery_level
= 1;
8646 mutex_init(&pf
->switch_mutex
);
8648 /* If NPAR is enabled nudge the Tx scheduler */
8649 if (pf
->hw
.func_caps
.npar_enable
&& (!i40e_get_npar_bw_setting(pf
)))
8650 i40e_set_npar_bw_setting(pf
);
8657 * i40e_set_ntuple - set the ntuple feature flag and take action
8658 * @pf: board private structure to initialize
8659 * @features: the feature set that the stack is suggesting
8661 * returns a bool to indicate if reset needs to happen
8663 bool i40e_set_ntuple(struct i40e_pf
*pf
, netdev_features_t features
)
8665 bool need_reset
= false;
8667 /* Check if Flow Director n-tuple support was enabled or disabled. If
8668 * the state changed, we need to reset.
8670 if (features
& NETIF_F_NTUPLE
) {
8671 /* Enable filters and mark for reset */
8672 if (!(pf
->flags
& I40E_FLAG_FD_SB_ENABLED
))
8674 /* enable FD_SB only if there is MSI-X vector */
8675 if (pf
->num_fdsb_msix
> 0)
8676 pf
->flags
|= I40E_FLAG_FD_SB_ENABLED
;
8678 /* turn off filters, mark for reset and clear SW filter list */
8679 if (pf
->flags
& I40E_FLAG_FD_SB_ENABLED
) {
8681 i40e_fdir_filter_exit(pf
);
8683 pf
->flags
&= ~I40E_FLAG_FD_SB_ENABLED
;
8684 pf
->auto_disable_flags
&= ~I40E_FLAG_FD_SB_ENABLED
;
8685 /* reset fd counters */
8686 pf
->fd_add_err
= pf
->fd_atr_cnt
= pf
->fd_tcp_rule
= 0;
8687 pf
->fdir_pf_active_filters
= 0;
8688 pf
->flags
|= I40E_FLAG_FD_ATR_ENABLED
;
8689 if (I40E_DEBUG_FD
& pf
->hw
.debug_mask
)
8690 dev_info(&pf
->pdev
->dev
, "ATR re-enabled.\n");
8691 /* if ATR was auto disabled it can be re-enabled. */
8692 if ((pf
->flags
& I40E_FLAG_FD_ATR_ENABLED
) &&
8693 (pf
->auto_disable_flags
& I40E_FLAG_FD_ATR_ENABLED
))
8694 pf
->auto_disable_flags
&= ~I40E_FLAG_FD_ATR_ENABLED
;
8700 * i40e_clear_rss_lut - clear the rx hash lookup table
8701 * @vsi: the VSI being configured
8703 static void i40e_clear_rss_lut(struct i40e_vsi
*vsi
)
8705 struct i40e_pf
*pf
= vsi
->back
;
8706 struct i40e_hw
*hw
= &pf
->hw
;
8707 u16 vf_id
= vsi
->vf_id
;
8710 if (vsi
->type
== I40E_VSI_MAIN
) {
8711 for (i
= 0; i
<= I40E_PFQF_HLUT_MAX_INDEX
; i
++)
8712 wr32(hw
, I40E_PFQF_HLUT(i
), 0);
8713 } else if (vsi
->type
== I40E_VSI_SRIOV
) {
8714 for (i
= 0; i
<= I40E_VFQF_HLUT_MAX_INDEX
; i
++)
8715 i40e_write_rx_ctl(hw
, I40E_VFQF_HLUT1(i
, vf_id
), 0);
8717 dev_err(&pf
->pdev
->dev
, "Cannot set RSS LUT - invalid VSI type\n");
8722 * i40e_set_features - set the netdev feature flags
8723 * @netdev: ptr to the netdev being adjusted
8724 * @features: the feature set that the stack is suggesting
8726 static int i40e_set_features(struct net_device
*netdev
,
8727 netdev_features_t features
)
8729 struct i40e_netdev_priv
*np
= netdev_priv(netdev
);
8730 struct i40e_vsi
*vsi
= np
->vsi
;
8731 struct i40e_pf
*pf
= vsi
->back
;
8734 if (features
& NETIF_F_RXHASH
&& !(netdev
->features
& NETIF_F_RXHASH
))
8735 i40e_pf_config_rss(pf
);
8736 else if (!(features
& NETIF_F_RXHASH
) &&
8737 netdev
->features
& NETIF_F_RXHASH
)
8738 i40e_clear_rss_lut(vsi
);
8740 if (features
& NETIF_F_HW_VLAN_CTAG_RX
)
8741 i40e_vlan_stripping_enable(vsi
);
8743 i40e_vlan_stripping_disable(vsi
);
8745 need_reset
= i40e_set_ntuple(pf
, features
);
8748 i40e_do_reset(pf
, BIT_ULL(__I40E_PF_RESET_REQUESTED
));
8754 * i40e_get_udp_port_idx - Lookup a possibly offloaded for Rx UDP port
8755 * @pf: board private structure
8756 * @port: The UDP port to look up
8758 * Returns the index number or I40E_MAX_PF_UDP_OFFLOAD_PORTS if port not found
8760 static u8
i40e_get_udp_port_idx(struct i40e_pf
*pf
, __be16 port
)
8764 for (i
= 0; i
< I40E_MAX_PF_UDP_OFFLOAD_PORTS
; i
++) {
8765 if (pf
->udp_ports
[i
].index
== port
)
8773 * i40e_udp_tunnel_add - Get notifications about UDP tunnel ports that come up
8774 * @netdev: This physical port's netdev
8775 * @ti: Tunnel endpoint information
8777 static void i40e_udp_tunnel_add(struct net_device
*netdev
,
8778 struct udp_tunnel_info
*ti
)
8780 struct i40e_netdev_priv
*np
= netdev_priv(netdev
);
8781 struct i40e_vsi
*vsi
= np
->vsi
;
8782 struct i40e_pf
*pf
= vsi
->back
;
8783 __be16 port
= ti
->port
;
8787 idx
= i40e_get_udp_port_idx(pf
, port
);
8789 /* Check if port already exists */
8790 if (idx
< I40E_MAX_PF_UDP_OFFLOAD_PORTS
) {
8791 netdev_info(netdev
, "port %d already offloaded\n",
8796 /* Now check if there is space to add the new port */
8797 next_idx
= i40e_get_udp_port_idx(pf
, 0);
8799 if (next_idx
== I40E_MAX_PF_UDP_OFFLOAD_PORTS
) {
8800 netdev_info(netdev
, "maximum number of offloaded UDP ports reached, not adding port %d\n",
8806 case UDP_TUNNEL_TYPE_VXLAN
:
8807 pf
->udp_ports
[next_idx
].type
= I40E_AQC_TUNNEL_TYPE_VXLAN
;
8809 case UDP_TUNNEL_TYPE_GENEVE
:
8810 if (!(pf
->flags
& I40E_FLAG_GENEVE_OFFLOAD_CAPABLE
))
8812 pf
->udp_ports
[next_idx
].type
= I40E_AQC_TUNNEL_TYPE_NGE
;
8818 /* New port: add it and mark its index in the bitmap */
8819 pf
->udp_ports
[next_idx
].index
= port
;
8820 pf
->pending_udp_bitmap
|= BIT_ULL(next_idx
);
8821 pf
->flags
|= I40E_FLAG_UDP_FILTER_SYNC
;
8825 * i40e_udp_tunnel_del - Get notifications about UDP tunnel ports that go away
8826 * @netdev: This physical port's netdev
8827 * @ti: Tunnel endpoint information
8829 static void i40e_udp_tunnel_del(struct net_device
*netdev
,
8830 struct udp_tunnel_info
*ti
)
8832 struct i40e_netdev_priv
*np
= netdev_priv(netdev
);
8833 struct i40e_vsi
*vsi
= np
->vsi
;
8834 struct i40e_pf
*pf
= vsi
->back
;
8835 __be16 port
= ti
->port
;
8838 idx
= i40e_get_udp_port_idx(pf
, port
);
8840 /* Check if port already exists */
8841 if (idx
>= I40E_MAX_PF_UDP_OFFLOAD_PORTS
)
8845 case UDP_TUNNEL_TYPE_VXLAN
:
8846 if (pf
->udp_ports
[idx
].type
!= I40E_AQC_TUNNEL_TYPE_VXLAN
)
8849 case UDP_TUNNEL_TYPE_GENEVE
:
8850 if (pf
->udp_ports
[idx
].type
!= I40E_AQC_TUNNEL_TYPE_NGE
)
8857 /* if port exists, set it to 0 (mark for deletion)
8858 * and make it pending
8860 pf
->udp_ports
[idx
].index
= 0;
8861 pf
->pending_udp_bitmap
|= BIT_ULL(idx
);
8862 pf
->flags
|= I40E_FLAG_UDP_FILTER_SYNC
;
8866 netdev_warn(netdev
, "UDP port %d was not found, not deleting\n",
8870 static int i40e_get_phys_port_id(struct net_device
*netdev
,
8871 struct netdev_phys_item_id
*ppid
)
8873 struct i40e_netdev_priv
*np
= netdev_priv(netdev
);
8874 struct i40e_pf
*pf
= np
->vsi
->back
;
8875 struct i40e_hw
*hw
= &pf
->hw
;
8877 if (!(pf
->flags
& I40E_FLAG_PORT_ID_VALID
))
8880 ppid
->id_len
= min_t(int, sizeof(hw
->mac
.port_addr
), sizeof(ppid
->id
));
8881 memcpy(ppid
->id
, hw
->mac
.port_addr
, ppid
->id_len
);
8887 * i40e_ndo_fdb_add - add an entry to the hardware database
8888 * @ndm: the input from the stack
8889 * @tb: pointer to array of nladdr (unused)
8890 * @dev: the net device pointer
8891 * @addr: the MAC address entry being added
8892 * @flags: instructions from stack about fdb operation
8894 static int i40e_ndo_fdb_add(struct ndmsg
*ndm
, struct nlattr
*tb
[],
8895 struct net_device
*dev
,
8896 const unsigned char *addr
, u16 vid
,
8899 struct i40e_netdev_priv
*np
= netdev_priv(dev
);
8900 struct i40e_pf
*pf
= np
->vsi
->back
;
8903 if (!(pf
->flags
& I40E_FLAG_SRIOV_ENABLED
))
8907 pr_info("%s: vlans aren't supported yet for dev_uc|mc_add()\n", dev
->name
);
8911 /* Hardware does not support aging addresses so if a
8912 * ndm_state is given only allow permanent addresses
8914 if (ndm
->ndm_state
&& !(ndm
->ndm_state
& NUD_PERMANENT
)) {
8915 netdev_info(dev
, "FDB only supports static addresses\n");
8919 if (is_unicast_ether_addr(addr
) || is_link_local_ether_addr(addr
))
8920 err
= dev_uc_add_excl(dev
, addr
);
8921 else if (is_multicast_ether_addr(addr
))
8922 err
= dev_mc_add_excl(dev
, addr
);
8926 /* Only return duplicate errors if NLM_F_EXCL is set */
8927 if (err
== -EEXIST
&& !(flags
& NLM_F_EXCL
))
8934 * i40e_ndo_bridge_setlink - Set the hardware bridge mode
8935 * @dev: the netdev being configured
8936 * @nlh: RTNL message
8938 * Inserts a new hardware bridge if not already created and
8939 * enables the bridging mode requested (VEB or VEPA). If the
8940 * hardware bridge has already been inserted and the request
8941 * is to change the mode then that requires a PF reset to
8942 * allow rebuild of the components with required hardware
8943 * bridge mode enabled.
8945 static int i40e_ndo_bridge_setlink(struct net_device
*dev
,
8946 struct nlmsghdr
*nlh
,
8949 struct i40e_netdev_priv
*np
= netdev_priv(dev
);
8950 struct i40e_vsi
*vsi
= np
->vsi
;
8951 struct i40e_pf
*pf
= vsi
->back
;
8952 struct i40e_veb
*veb
= NULL
;
8953 struct nlattr
*attr
, *br_spec
;
8956 /* Only for PF VSI for now */
8957 if (vsi
->seid
!= pf
->vsi
[pf
->lan_vsi
]->seid
)
8960 /* Find the HW bridge for PF VSI */
8961 for (i
= 0; i
< I40E_MAX_VEB
&& !veb
; i
++) {
8962 if (pf
->veb
[i
] && pf
->veb
[i
]->seid
== vsi
->uplink_seid
)
8966 br_spec
= nlmsg_find_attr(nlh
, sizeof(struct ifinfomsg
), IFLA_AF_SPEC
);
8968 nla_for_each_nested(attr
, br_spec
, rem
) {
8971 if (nla_type(attr
) != IFLA_BRIDGE_MODE
)
8974 mode
= nla_get_u16(attr
);
8975 if ((mode
!= BRIDGE_MODE_VEPA
) &&
8976 (mode
!= BRIDGE_MODE_VEB
))
8979 /* Insert a new HW bridge */
8981 veb
= i40e_veb_setup(pf
, 0, vsi
->uplink_seid
, vsi
->seid
,
8982 vsi
->tc_config
.enabled_tc
);
8984 veb
->bridge_mode
= mode
;
8985 i40e_config_bridge_mode(veb
);
8987 /* No Bridge HW offload available */
8991 } else if (mode
!= veb
->bridge_mode
) {
8992 /* Existing HW bridge but different mode needs reset */
8993 veb
->bridge_mode
= mode
;
8994 /* TODO: If no VFs or VMDq VSIs, disallow VEB mode */
8995 if (mode
== BRIDGE_MODE_VEB
)
8996 pf
->flags
|= I40E_FLAG_VEB_MODE_ENABLED
;
8998 pf
->flags
&= ~I40E_FLAG_VEB_MODE_ENABLED
;
8999 i40e_do_reset(pf
, BIT_ULL(__I40E_PF_RESET_REQUESTED
));
9008 * i40e_ndo_bridge_getlink - Get the hardware bridge mode
9011 * @seq: RTNL message seq #
9012 * @dev: the netdev being configured
9013 * @filter_mask: unused
9014 * @nlflags: netlink flags passed in
9016 * Return the mode in which the hardware bridge is operating in
9019 static int i40e_ndo_bridge_getlink(struct sk_buff
*skb
, u32 pid
, u32 seq
,
9020 struct net_device
*dev
,
9021 u32 __always_unused filter_mask
,
9024 struct i40e_netdev_priv
*np
= netdev_priv(dev
);
9025 struct i40e_vsi
*vsi
= np
->vsi
;
9026 struct i40e_pf
*pf
= vsi
->back
;
9027 struct i40e_veb
*veb
= NULL
;
9030 /* Only for PF VSI for now */
9031 if (vsi
->seid
!= pf
->vsi
[pf
->lan_vsi
]->seid
)
9034 /* Find the HW bridge for the PF VSI */
9035 for (i
= 0; i
< I40E_MAX_VEB
&& !veb
; i
++) {
9036 if (pf
->veb
[i
] && pf
->veb
[i
]->seid
== vsi
->uplink_seid
)
9043 return ndo_dflt_bridge_getlink(skb
, pid
, seq
, dev
, veb
->bridge_mode
,
9044 nlflags
, 0, 0, filter_mask
, NULL
);
9047 /* Hardware supports L4 tunnel length of 128B (=2^7) which includes
9048 * inner mac plus all inner ethertypes.
9050 #define I40E_MAX_TUNNEL_HDR_LEN 128
9052 * i40e_features_check - Validate encapsulated packet conforms to limits
9054 * @dev: This physical port's netdev
9055 * @features: Offload features that the stack believes apply
9057 static netdev_features_t
i40e_features_check(struct sk_buff
*skb
,
9058 struct net_device
*dev
,
9059 netdev_features_t features
)
9061 if (skb
->encapsulation
&&
9062 ((skb_inner_network_header(skb
) - skb_transport_header(skb
)) >
9063 I40E_MAX_TUNNEL_HDR_LEN
))
9064 return features
& ~(NETIF_F_CSUM_MASK
| NETIF_F_GSO_MASK
);
9069 static const struct net_device_ops i40e_netdev_ops
= {
9070 .ndo_open
= i40e_open
,
9071 .ndo_stop
= i40e_close
,
9072 .ndo_start_xmit
= i40e_lan_xmit_frame
,
9073 .ndo_get_stats64
= i40e_get_netdev_stats_struct
,
9074 .ndo_set_rx_mode
= i40e_set_rx_mode
,
9075 .ndo_validate_addr
= eth_validate_addr
,
9076 .ndo_set_mac_address
= i40e_set_mac
,
9077 .ndo_change_mtu
= i40e_change_mtu
,
9078 .ndo_do_ioctl
= i40e_ioctl
,
9079 .ndo_tx_timeout
= i40e_tx_timeout
,
9080 .ndo_vlan_rx_add_vid
= i40e_vlan_rx_add_vid
,
9081 .ndo_vlan_rx_kill_vid
= i40e_vlan_rx_kill_vid
,
9082 #ifdef CONFIG_NET_POLL_CONTROLLER
9083 .ndo_poll_controller
= i40e_netpoll
,
9085 .ndo_setup_tc
= __i40e_setup_tc
,
9087 .ndo_fcoe_enable
= i40e_fcoe_enable
,
9088 .ndo_fcoe_disable
= i40e_fcoe_disable
,
9090 .ndo_set_features
= i40e_set_features
,
9091 .ndo_set_vf_mac
= i40e_ndo_set_vf_mac
,
9092 .ndo_set_vf_vlan
= i40e_ndo_set_vf_port_vlan
,
9093 .ndo_set_vf_rate
= i40e_ndo_set_vf_bw
,
9094 .ndo_get_vf_config
= i40e_ndo_get_vf_config
,
9095 .ndo_set_vf_link_state
= i40e_ndo_set_vf_link_state
,
9096 .ndo_set_vf_spoofchk
= i40e_ndo_set_vf_spoofchk
,
9097 .ndo_set_vf_trust
= i40e_ndo_set_vf_trust
,
9098 .ndo_udp_tunnel_add
= i40e_udp_tunnel_add
,
9099 .ndo_udp_tunnel_del
= i40e_udp_tunnel_del
,
9100 .ndo_get_phys_port_id
= i40e_get_phys_port_id
,
9101 .ndo_fdb_add
= i40e_ndo_fdb_add
,
9102 .ndo_features_check
= i40e_features_check
,
9103 .ndo_bridge_getlink
= i40e_ndo_bridge_getlink
,
9104 .ndo_bridge_setlink
= i40e_ndo_bridge_setlink
,
9108 * i40e_config_netdev - Setup the netdev flags
9109 * @vsi: the VSI being configured
9111 * Returns 0 on success, negative value on failure
9113 static int i40e_config_netdev(struct i40e_vsi
*vsi
)
9115 struct i40e_pf
*pf
= vsi
->back
;
9116 struct i40e_hw
*hw
= &pf
->hw
;
9117 struct i40e_netdev_priv
*np
;
9118 struct net_device
*netdev
;
9119 u8 mac_addr
[ETH_ALEN
];
9122 etherdev_size
= sizeof(struct i40e_netdev_priv
);
9123 netdev
= alloc_etherdev_mq(etherdev_size
, vsi
->alloc_queue_pairs
);
9127 vsi
->netdev
= netdev
;
9128 np
= netdev_priv(netdev
);
9131 netdev
->hw_enc_features
|= NETIF_F_SG
|
9135 NETIF_F_SOFT_FEATURES
|
9140 NETIF_F_GSO_GRE_CSUM
|
9141 NETIF_F_GSO_IPXIP4
|
9142 NETIF_F_GSO_IPXIP6
|
9143 NETIF_F_GSO_UDP_TUNNEL
|
9144 NETIF_F_GSO_UDP_TUNNEL_CSUM
|
9145 NETIF_F_GSO_PARTIAL
|
9151 if (!(pf
->flags
& I40E_FLAG_OUTER_UDP_CSUM_CAPABLE
))
9152 netdev
->gso_partial_features
|= NETIF_F_GSO_UDP_TUNNEL_CSUM
;
9154 netdev
->gso_partial_features
|= NETIF_F_GSO_GRE_CSUM
;
9156 /* record features VLANs can make use of */
9157 netdev
->vlan_features
|= netdev
->hw_enc_features
|
9158 NETIF_F_TSO_MANGLEID
;
9160 if (!(pf
->flags
& I40E_FLAG_MFP_ENABLED
))
9161 netdev
->hw_features
|= NETIF_F_NTUPLE
;
9163 netdev
->hw_features
|= netdev
->hw_enc_features
|
9164 NETIF_F_HW_VLAN_CTAG_TX
|
9165 NETIF_F_HW_VLAN_CTAG_RX
;
9167 netdev
->features
|= netdev
->hw_features
| NETIF_F_HW_VLAN_CTAG_FILTER
;
9168 netdev
->hw_enc_features
|= NETIF_F_TSO_MANGLEID
;
9170 if (vsi
->type
== I40E_VSI_MAIN
) {
9171 SET_NETDEV_DEV(netdev
, &pf
->pdev
->dev
);
9172 ether_addr_copy(mac_addr
, hw
->mac
.perm_addr
);
9173 /* The following steps are necessary to prevent reception
9174 * of tagged packets - some older NVM configurations load a
9175 * default a MAC-VLAN filter that accepts any tagged packet
9176 * which must be replaced by a normal filter.
9178 i40e_rm_default_mac_filter(vsi
, mac_addr
);
9179 spin_lock_bh(&vsi
->mac_filter_list_lock
);
9180 i40e_add_filter(vsi
, mac_addr
, I40E_VLAN_ANY
, false, true);
9181 spin_unlock_bh(&vsi
->mac_filter_list_lock
);
9183 /* relate the VSI_VMDQ name to the VSI_MAIN name */
9184 snprintf(netdev
->name
, IFNAMSIZ
, "%sv%%d",
9185 pf
->vsi
[pf
->lan_vsi
]->netdev
->name
);
9186 random_ether_addr(mac_addr
);
9188 spin_lock_bh(&vsi
->mac_filter_list_lock
);
9189 i40e_add_filter(vsi
, mac_addr
, I40E_VLAN_ANY
, false, false);
9190 spin_unlock_bh(&vsi
->mac_filter_list_lock
);
9193 ether_addr_copy(netdev
->dev_addr
, mac_addr
);
9194 ether_addr_copy(netdev
->perm_addr
, mac_addr
);
9196 netdev
->priv_flags
|= IFF_UNICAST_FLT
;
9197 netdev
->priv_flags
|= IFF_SUPP_NOFCS
;
9198 /* Setup netdev TC information */
9199 i40e_vsi_config_netdev_tc(vsi
, vsi
->tc_config
.enabled_tc
);
9201 netdev
->netdev_ops
= &i40e_netdev_ops
;
9202 netdev
->watchdog_timeo
= 5 * HZ
;
9203 i40e_set_ethtool_ops(netdev
);
9205 i40e_fcoe_config_netdev(netdev
, vsi
);
9212 * i40e_vsi_delete - Delete a VSI from the switch
9213 * @vsi: the VSI being removed
9215 * Returns 0 on success, negative value on failure
9217 static void i40e_vsi_delete(struct i40e_vsi
*vsi
)
9219 /* remove default VSI is not allowed */
9220 if (vsi
== vsi
->back
->vsi
[vsi
->back
->lan_vsi
])
9223 i40e_aq_delete_element(&vsi
->back
->hw
, vsi
->seid
, NULL
);
9227 * i40e_is_vsi_uplink_mode_veb - Check if the VSI's uplink bridge mode is VEB
9228 * @vsi: the VSI being queried
9230 * Returns 1 if HW bridge mode is VEB and return 0 in case of VEPA mode
9232 int i40e_is_vsi_uplink_mode_veb(struct i40e_vsi
*vsi
)
9234 struct i40e_veb
*veb
;
9235 struct i40e_pf
*pf
= vsi
->back
;
9237 /* Uplink is not a bridge so default to VEB */
9238 if (vsi
->veb_idx
== I40E_NO_VEB
)
9241 veb
= pf
->veb
[vsi
->veb_idx
];
9243 dev_info(&pf
->pdev
->dev
,
9244 "There is no veb associated with the bridge\n");
9248 /* Uplink is a bridge in VEPA mode */
9249 if (veb
->bridge_mode
& BRIDGE_MODE_VEPA
) {
9252 /* Uplink is a bridge in VEB mode */
9256 /* VEPA is now default bridge, so return 0 */
9261 * i40e_add_vsi - Add a VSI to the switch
9262 * @vsi: the VSI being configured
9264 * This initializes a VSI context depending on the VSI type to be added and
9265 * passes it down to the add_vsi aq command.
9267 static int i40e_add_vsi(struct i40e_vsi
*vsi
)
9270 i40e_status aq_ret
= 0;
9271 struct i40e_pf
*pf
= vsi
->back
;
9272 struct i40e_hw
*hw
= &pf
->hw
;
9273 struct i40e_vsi_context ctxt
;
9274 struct i40e_mac_filter
*f
, *ftmp
;
9276 u8 enabled_tc
= 0x1; /* TC0 enabled */
9279 memset(&ctxt
, 0, sizeof(ctxt
));
9280 switch (vsi
->type
) {
9282 /* The PF's main VSI is already setup as part of the
9283 * device initialization, so we'll not bother with
9284 * the add_vsi call, but we will retrieve the current
9287 ctxt
.seid
= pf
->main_vsi_seid
;
9288 ctxt
.pf_num
= pf
->hw
.pf_id
;
9290 ret
= i40e_aq_get_vsi_params(&pf
->hw
, &ctxt
, NULL
);
9291 ctxt
.flags
= I40E_AQ_VSI_TYPE_PF
;
9293 dev_info(&pf
->pdev
->dev
,
9294 "couldn't get PF vsi config, err %s aq_err %s\n",
9295 i40e_stat_str(&pf
->hw
, ret
),
9296 i40e_aq_str(&pf
->hw
,
9297 pf
->hw
.aq
.asq_last_status
));
9300 vsi
->info
= ctxt
.info
;
9301 vsi
->info
.valid_sections
= 0;
9303 vsi
->seid
= ctxt
.seid
;
9304 vsi
->id
= ctxt
.vsi_number
;
9306 enabled_tc
= i40e_pf_get_tc_map(pf
);
9308 /* MFP mode setup queue map and update VSI */
9309 if ((pf
->flags
& I40E_FLAG_MFP_ENABLED
) &&
9310 !(pf
->hw
.func_caps
.iscsi
)) { /* NIC type PF */
9311 memset(&ctxt
, 0, sizeof(ctxt
));
9312 ctxt
.seid
= pf
->main_vsi_seid
;
9313 ctxt
.pf_num
= pf
->hw
.pf_id
;
9315 i40e_vsi_setup_queue_map(vsi
, &ctxt
, enabled_tc
, false);
9316 ret
= i40e_aq_update_vsi_params(hw
, &ctxt
, NULL
);
9318 dev_info(&pf
->pdev
->dev
,
9319 "update vsi failed, err %s aq_err %s\n",
9320 i40e_stat_str(&pf
->hw
, ret
),
9321 i40e_aq_str(&pf
->hw
,
9322 pf
->hw
.aq
.asq_last_status
));
9326 /* update the local VSI info queue map */
9327 i40e_vsi_update_queue_map(vsi
, &ctxt
);
9328 vsi
->info
.valid_sections
= 0;
9330 /* Default/Main VSI is only enabled for TC0
9331 * reconfigure it to enable all TCs that are
9332 * available on the port in SFP mode.
9333 * For MFP case the iSCSI PF would use this
9334 * flow to enable LAN+iSCSI TC.
9336 ret
= i40e_vsi_config_tc(vsi
, enabled_tc
);
9338 dev_info(&pf
->pdev
->dev
,
9339 "failed to configure TCs for main VSI tc_map 0x%08x, err %s aq_err %s\n",
9341 i40e_stat_str(&pf
->hw
, ret
),
9342 i40e_aq_str(&pf
->hw
,
9343 pf
->hw
.aq
.asq_last_status
));
9350 ctxt
.pf_num
= hw
->pf_id
;
9352 ctxt
.uplink_seid
= vsi
->uplink_seid
;
9353 ctxt
.connection_type
= I40E_AQ_VSI_CONN_TYPE_NORMAL
;
9354 ctxt
.flags
= I40E_AQ_VSI_TYPE_PF
;
9355 if ((pf
->flags
& I40E_FLAG_VEB_MODE_ENABLED
) &&
9356 (i40e_is_vsi_uplink_mode_veb(vsi
))) {
9357 ctxt
.info
.valid_sections
|=
9358 cpu_to_le16(I40E_AQ_VSI_PROP_SWITCH_VALID
);
9359 ctxt
.info
.switch_id
=
9360 cpu_to_le16(I40E_AQ_VSI_SW_ID_FLAG_ALLOW_LB
);
9362 i40e_vsi_setup_queue_map(vsi
, &ctxt
, enabled_tc
, true);
9365 case I40E_VSI_VMDQ2
:
9366 ctxt
.pf_num
= hw
->pf_id
;
9368 ctxt
.uplink_seid
= vsi
->uplink_seid
;
9369 ctxt
.connection_type
= I40E_AQ_VSI_CONN_TYPE_NORMAL
;
9370 ctxt
.flags
= I40E_AQ_VSI_TYPE_VMDQ2
;
9372 /* This VSI is connected to VEB so the switch_id
9373 * should be set to zero by default.
9375 if (i40e_is_vsi_uplink_mode_veb(vsi
)) {
9376 ctxt
.info
.valid_sections
|=
9377 cpu_to_le16(I40E_AQ_VSI_PROP_SWITCH_VALID
);
9378 ctxt
.info
.switch_id
=
9379 cpu_to_le16(I40E_AQ_VSI_SW_ID_FLAG_ALLOW_LB
);
9382 /* Setup the VSI tx/rx queue map for TC0 only for now */
9383 i40e_vsi_setup_queue_map(vsi
, &ctxt
, enabled_tc
, true);
9386 case I40E_VSI_SRIOV
:
9387 ctxt
.pf_num
= hw
->pf_id
;
9388 ctxt
.vf_num
= vsi
->vf_id
+ hw
->func_caps
.vf_base_id
;
9389 ctxt
.uplink_seid
= vsi
->uplink_seid
;
9390 ctxt
.connection_type
= I40E_AQ_VSI_CONN_TYPE_NORMAL
;
9391 ctxt
.flags
= I40E_AQ_VSI_TYPE_VF
;
9393 /* This VSI is connected to VEB so the switch_id
9394 * should be set to zero by default.
9396 if (i40e_is_vsi_uplink_mode_veb(vsi
)) {
9397 ctxt
.info
.valid_sections
|=
9398 cpu_to_le16(I40E_AQ_VSI_PROP_SWITCH_VALID
);
9399 ctxt
.info
.switch_id
=
9400 cpu_to_le16(I40E_AQ_VSI_SW_ID_FLAG_ALLOW_LB
);
9403 if (vsi
->back
->flags
& I40E_FLAG_IWARP_ENABLED
) {
9404 ctxt
.info
.valid_sections
|=
9405 cpu_to_le16(I40E_AQ_VSI_PROP_QUEUE_OPT_VALID
);
9406 ctxt
.info
.queueing_opt_flags
|=
9407 (I40E_AQ_VSI_QUE_OPT_TCP_ENA
|
9408 I40E_AQ_VSI_QUE_OPT_RSS_LUT_VSI
);
9411 ctxt
.info
.valid_sections
|= cpu_to_le16(I40E_AQ_VSI_PROP_VLAN_VALID
);
9412 ctxt
.info
.port_vlan_flags
|= I40E_AQ_VSI_PVLAN_MODE_ALL
;
9413 if (pf
->vf
[vsi
->vf_id
].spoofchk
) {
9414 ctxt
.info
.valid_sections
|=
9415 cpu_to_le16(I40E_AQ_VSI_PROP_SECURITY_VALID
);
9416 ctxt
.info
.sec_flags
|=
9417 (I40E_AQ_VSI_SEC_FLAG_ENABLE_VLAN_CHK
|
9418 I40E_AQ_VSI_SEC_FLAG_ENABLE_MAC_CHK
);
9420 /* Setup the VSI tx/rx queue map for TC0 only for now */
9421 i40e_vsi_setup_queue_map(vsi
, &ctxt
, enabled_tc
, true);
9426 ret
= i40e_fcoe_vsi_init(vsi
, &ctxt
);
9428 dev_info(&pf
->pdev
->dev
, "failed to initialize FCoE VSI\n");
9433 #endif /* I40E_FCOE */
9434 case I40E_VSI_IWARP
:
9435 /* send down message to iWARP */
9442 if (vsi
->type
!= I40E_VSI_MAIN
) {
9443 ret
= i40e_aq_add_vsi(hw
, &ctxt
, NULL
);
9445 dev_info(&vsi
->back
->pdev
->dev
,
9446 "add vsi failed, err %s aq_err %s\n",
9447 i40e_stat_str(&pf
->hw
, ret
),
9448 i40e_aq_str(&pf
->hw
,
9449 pf
->hw
.aq
.asq_last_status
));
9453 vsi
->info
= ctxt
.info
;
9454 vsi
->info
.valid_sections
= 0;
9455 vsi
->seid
= ctxt
.seid
;
9456 vsi
->id
= ctxt
.vsi_number
;
9458 /* Except FDIR VSI, for all othet VSI set the broadcast filter */
9459 if (vsi
->type
!= I40E_VSI_FDIR
) {
9460 aq_ret
= i40e_aq_set_vsi_broadcast(hw
, vsi
->seid
, true, NULL
);
9462 ret
= i40e_aq_rc_to_posix(aq_ret
,
9463 hw
->aq
.asq_last_status
);
9464 dev_info(&pf
->pdev
->dev
,
9465 "set brdcast promisc failed, err %s, aq_err %s\n",
9466 i40e_stat_str(hw
, aq_ret
),
9467 i40e_aq_str(hw
, hw
->aq
.asq_last_status
));
9471 vsi
->active_filters
= 0;
9472 clear_bit(__I40E_FILTER_OVERFLOW_PROMISC
, &vsi
->state
);
9473 spin_lock_bh(&vsi
->mac_filter_list_lock
);
9474 /* If macvlan filters already exist, force them to get loaded */
9475 list_for_each_entry_safe(f
, ftmp
, &vsi
->mac_filter_list
, list
) {
9476 f
->state
= I40E_FILTER_NEW
;
9479 spin_unlock_bh(&vsi
->mac_filter_list_lock
);
9482 vsi
->flags
|= I40E_VSI_FLAG_FILTER_CHANGED
;
9483 pf
->flags
|= I40E_FLAG_FILTER_SYNC
;
9486 /* Update VSI BW information */
9487 ret
= i40e_vsi_get_bw_info(vsi
);
9489 dev_info(&pf
->pdev
->dev
,
9490 "couldn't get vsi bw info, err %s aq_err %s\n",
9491 i40e_stat_str(&pf
->hw
, ret
),
9492 i40e_aq_str(&pf
->hw
, pf
->hw
.aq
.asq_last_status
));
9493 /* VSI is already added so not tearing that up */
9502 * i40e_vsi_release - Delete a VSI and free its resources
9503 * @vsi: the VSI being removed
9505 * Returns 0 on success or < 0 on error
9507 int i40e_vsi_release(struct i40e_vsi
*vsi
)
9509 struct i40e_mac_filter
*f
, *ftmp
;
9510 struct i40e_veb
*veb
= NULL
;
9517 /* release of a VEB-owner or last VSI is not allowed */
9518 if (vsi
->flags
& I40E_VSI_FLAG_VEB_OWNER
) {
9519 dev_info(&pf
->pdev
->dev
, "VSI %d has existing VEB %d\n",
9520 vsi
->seid
, vsi
->uplink_seid
);
9523 if (vsi
== pf
->vsi
[pf
->lan_vsi
] &&
9524 !test_bit(__I40E_DOWN
, &pf
->state
)) {
9525 dev_info(&pf
->pdev
->dev
, "Can't remove PF VSI\n");
9529 uplink_seid
= vsi
->uplink_seid
;
9530 if (vsi
->type
!= I40E_VSI_SRIOV
) {
9531 if (vsi
->netdev_registered
) {
9532 vsi
->netdev_registered
= false;
9534 /* results in a call to i40e_close() */
9535 unregister_netdev(vsi
->netdev
);
9538 i40e_vsi_close(vsi
);
9540 i40e_vsi_disable_irq(vsi
);
9543 spin_lock_bh(&vsi
->mac_filter_list_lock
);
9544 list_for_each_entry_safe(f
, ftmp
, &vsi
->mac_filter_list
, list
)
9545 i40e_del_filter(vsi
, f
->macaddr
, f
->vlan
,
9546 f
->is_vf
, f
->is_netdev
);
9547 spin_unlock_bh(&vsi
->mac_filter_list_lock
);
9549 i40e_sync_vsi_filters(vsi
);
9551 i40e_vsi_delete(vsi
);
9552 i40e_vsi_free_q_vectors(vsi
);
9554 free_netdev(vsi
->netdev
);
9557 i40e_vsi_clear_rings(vsi
);
9558 i40e_vsi_clear(vsi
);
9560 /* If this was the last thing on the VEB, except for the
9561 * controlling VSI, remove the VEB, which puts the controlling
9562 * VSI onto the next level down in the switch.
9564 * Well, okay, there's one more exception here: don't remove
9565 * the orphan VEBs yet. We'll wait for an explicit remove request
9566 * from up the network stack.
9568 for (n
= 0, i
= 0; i
< pf
->num_alloc_vsi
; i
++) {
9570 pf
->vsi
[i
]->uplink_seid
== uplink_seid
&&
9571 (pf
->vsi
[i
]->flags
& I40E_VSI_FLAG_VEB_OWNER
) == 0) {
9572 n
++; /* count the VSIs */
9575 for (i
= 0; i
< I40E_MAX_VEB
; i
++) {
9578 if (pf
->veb
[i
]->uplink_seid
== uplink_seid
)
9579 n
++; /* count the VEBs */
9580 if (pf
->veb
[i
]->seid
== uplink_seid
)
9583 if (n
== 0 && veb
&& veb
->uplink_seid
!= 0)
9584 i40e_veb_release(veb
);
9590 * i40e_vsi_setup_vectors - Set up the q_vectors for the given VSI
9591 * @vsi: ptr to the VSI
9593 * This should only be called after i40e_vsi_mem_alloc() which allocates the
9594 * corresponding SW VSI structure and initializes num_queue_pairs for the
9595 * newly allocated VSI.
9597 * Returns 0 on success or negative on failure
9599 static int i40e_vsi_setup_vectors(struct i40e_vsi
*vsi
)
9602 struct i40e_pf
*pf
= vsi
->back
;
9604 if (vsi
->q_vectors
[0]) {
9605 dev_info(&pf
->pdev
->dev
, "VSI %d has existing q_vectors\n",
9610 if (vsi
->base_vector
) {
9611 dev_info(&pf
->pdev
->dev
, "VSI %d has non-zero base vector %d\n",
9612 vsi
->seid
, vsi
->base_vector
);
9616 ret
= i40e_vsi_alloc_q_vectors(vsi
);
9618 dev_info(&pf
->pdev
->dev
,
9619 "failed to allocate %d q_vector for VSI %d, ret=%d\n",
9620 vsi
->num_q_vectors
, vsi
->seid
, ret
);
9621 vsi
->num_q_vectors
= 0;
9622 goto vector_setup_out
;
9625 /* In Legacy mode, we do not have to get any other vector since we
9626 * piggyback on the misc/ICR0 for queue interrupts.
9628 if (!(pf
->flags
& I40E_FLAG_MSIX_ENABLED
))
9630 if (vsi
->num_q_vectors
)
9631 vsi
->base_vector
= i40e_get_lump(pf
, pf
->irq_pile
,
9632 vsi
->num_q_vectors
, vsi
->idx
);
9633 if (vsi
->base_vector
< 0) {
9634 dev_info(&pf
->pdev
->dev
,
9635 "failed to get tracking for %d vectors for VSI %d, err=%d\n",
9636 vsi
->num_q_vectors
, vsi
->seid
, vsi
->base_vector
);
9637 i40e_vsi_free_q_vectors(vsi
);
9639 goto vector_setup_out
;
9647 * i40e_vsi_reinit_setup - return and reallocate resources for a VSI
9648 * @vsi: pointer to the vsi.
9650 * This re-allocates a vsi's queue resources.
9652 * Returns pointer to the successfully allocated and configured VSI sw struct
9653 * on success, otherwise returns NULL on failure.
9655 static struct i40e_vsi
*i40e_vsi_reinit_setup(struct i40e_vsi
*vsi
)
9666 i40e_put_lump(pf
->qp_pile
, vsi
->base_queue
, vsi
->idx
);
9667 i40e_vsi_clear_rings(vsi
);
9669 i40e_vsi_free_arrays(vsi
, false);
9670 i40e_set_num_rings_in_vsi(vsi
);
9671 ret
= i40e_vsi_alloc_arrays(vsi
, false);
9675 ret
= i40e_get_lump(pf
, pf
->qp_pile
, vsi
->alloc_queue_pairs
, vsi
->idx
);
9677 dev_info(&pf
->pdev
->dev
,
9678 "failed to get tracking for %d queues for VSI %d err %d\n",
9679 vsi
->alloc_queue_pairs
, vsi
->seid
, ret
);
9682 vsi
->base_queue
= ret
;
9684 /* Update the FW view of the VSI. Force a reset of TC and queue
9685 * layout configurations.
9687 enabled_tc
= pf
->vsi
[pf
->lan_vsi
]->tc_config
.enabled_tc
;
9688 pf
->vsi
[pf
->lan_vsi
]->tc_config
.enabled_tc
= 0;
9689 pf
->vsi
[pf
->lan_vsi
]->seid
= pf
->main_vsi_seid
;
9690 i40e_vsi_config_tc(pf
->vsi
[pf
->lan_vsi
], enabled_tc
);
9691 if (vsi
->type
== I40E_VSI_MAIN
)
9692 i40e_rm_default_mac_filter(vsi
, pf
->hw
.mac
.perm_addr
);
9694 /* assign it some queues */
9695 ret
= i40e_alloc_rings(vsi
);
9699 /* map all of the rings to the q_vectors */
9700 i40e_vsi_map_rings_to_vectors(vsi
);
9704 i40e_vsi_free_q_vectors(vsi
);
9705 if (vsi
->netdev_registered
) {
9706 vsi
->netdev_registered
= false;
9707 unregister_netdev(vsi
->netdev
);
9708 free_netdev(vsi
->netdev
);
9711 i40e_aq_delete_element(&pf
->hw
, vsi
->seid
, NULL
);
9713 i40e_vsi_clear(vsi
);
9718 * i40e_vsi_setup - Set up a VSI by a given type
9719 * @pf: board private structure
9721 * @uplink_seid: the switch element to link to
9722 * @param1: usage depends upon VSI type. For VF types, indicates VF id
9724 * This allocates the sw VSI structure and its queue resources, then add a VSI
9725 * to the identified VEB.
9727 * Returns pointer to the successfully allocated and configure VSI sw struct on
9728 * success, otherwise returns NULL on failure.
9730 struct i40e_vsi
*i40e_vsi_setup(struct i40e_pf
*pf
, u8 type
,
9731 u16 uplink_seid
, u32 param1
)
9733 struct i40e_vsi
*vsi
= NULL
;
9734 struct i40e_veb
*veb
= NULL
;
9738 /* The requested uplink_seid must be either
9739 * - the PF's port seid
9740 * no VEB is needed because this is the PF
9741 * or this is a Flow Director special case VSI
9742 * - seid of an existing VEB
9743 * - seid of a VSI that owns an existing VEB
9744 * - seid of a VSI that doesn't own a VEB
9745 * a new VEB is created and the VSI becomes the owner
9746 * - seid of the PF VSI, which is what creates the first VEB
9747 * this is a special case of the previous
9749 * Find which uplink_seid we were given and create a new VEB if needed
9751 for (i
= 0; i
< I40E_MAX_VEB
; i
++) {
9752 if (pf
->veb
[i
] && pf
->veb
[i
]->seid
== uplink_seid
) {
9758 if (!veb
&& uplink_seid
!= pf
->mac_seid
) {
9760 for (i
= 0; i
< pf
->num_alloc_vsi
; i
++) {
9761 if (pf
->vsi
[i
] && pf
->vsi
[i
]->seid
== uplink_seid
) {
9767 dev_info(&pf
->pdev
->dev
, "no such uplink_seid %d\n",
9772 if (vsi
->uplink_seid
== pf
->mac_seid
)
9773 veb
= i40e_veb_setup(pf
, 0, pf
->mac_seid
, vsi
->seid
,
9774 vsi
->tc_config
.enabled_tc
);
9775 else if ((vsi
->flags
& I40E_VSI_FLAG_VEB_OWNER
) == 0)
9776 veb
= i40e_veb_setup(pf
, 0, vsi
->uplink_seid
, vsi
->seid
,
9777 vsi
->tc_config
.enabled_tc
);
9779 if (vsi
->seid
!= pf
->vsi
[pf
->lan_vsi
]->seid
) {
9780 dev_info(&vsi
->back
->pdev
->dev
,
9781 "New VSI creation error, uplink seid of LAN VSI expected.\n");
9784 /* We come up by default in VEPA mode if SRIOV is not
9785 * already enabled, in which case we can't force VEPA
9788 if (!(pf
->flags
& I40E_FLAG_VEB_MODE_ENABLED
)) {
9789 veb
->bridge_mode
= BRIDGE_MODE_VEPA
;
9790 pf
->flags
&= ~I40E_FLAG_VEB_MODE_ENABLED
;
9792 i40e_config_bridge_mode(veb
);
9794 for (i
= 0; i
< I40E_MAX_VEB
&& !veb
; i
++) {
9795 if (pf
->veb
[i
] && pf
->veb
[i
]->seid
== vsi
->uplink_seid
)
9799 dev_info(&pf
->pdev
->dev
, "couldn't add VEB\n");
9803 vsi
->flags
|= I40E_VSI_FLAG_VEB_OWNER
;
9804 uplink_seid
= veb
->seid
;
9807 /* get vsi sw struct */
9808 v_idx
= i40e_vsi_mem_alloc(pf
, type
);
9811 vsi
= pf
->vsi
[v_idx
];
9815 vsi
->veb_idx
= (veb
? veb
->idx
: I40E_NO_VEB
);
9817 if (type
== I40E_VSI_MAIN
)
9818 pf
->lan_vsi
= v_idx
;
9819 else if (type
== I40E_VSI_SRIOV
)
9820 vsi
->vf_id
= param1
;
9821 /* assign it some queues */
9822 ret
= i40e_get_lump(pf
, pf
->qp_pile
, vsi
->alloc_queue_pairs
,
9825 dev_info(&pf
->pdev
->dev
,
9826 "failed to get tracking for %d queues for VSI %d err=%d\n",
9827 vsi
->alloc_queue_pairs
, vsi
->seid
, ret
);
9830 vsi
->base_queue
= ret
;
9832 /* get a VSI from the hardware */
9833 vsi
->uplink_seid
= uplink_seid
;
9834 ret
= i40e_add_vsi(vsi
);
9838 switch (vsi
->type
) {
9839 /* setup the netdev if needed */
9841 /* Apply relevant filters if a platform-specific mac
9842 * address was selected.
9844 if (!!(pf
->flags
& I40E_FLAG_PF_MAC
)) {
9845 ret
= i40e_macaddr_init(vsi
, pf
->hw
.mac
.addr
);
9847 dev_warn(&pf
->pdev
->dev
,
9848 "could not set up macaddr; err %d\n",
9852 case I40E_VSI_VMDQ2
:
9854 ret
= i40e_config_netdev(vsi
);
9857 ret
= register_netdev(vsi
->netdev
);
9860 vsi
->netdev_registered
= true;
9861 netif_carrier_off(vsi
->netdev
);
9862 #ifdef CONFIG_I40E_DCB
9863 /* Setup DCB netlink interface */
9864 i40e_dcbnl_setup(vsi
);
9865 #endif /* CONFIG_I40E_DCB */
9869 /* set up vectors and rings if needed */
9870 ret
= i40e_vsi_setup_vectors(vsi
);
9874 ret
= i40e_alloc_rings(vsi
);
9878 /* map all of the rings to the q_vectors */
9879 i40e_vsi_map_rings_to_vectors(vsi
);
9881 i40e_vsi_reset_stats(vsi
);
9885 /* no netdev or rings for the other VSI types */
9889 if ((pf
->flags
& I40E_FLAG_RSS_AQ_CAPABLE
) &&
9890 (vsi
->type
== I40E_VSI_VMDQ2
)) {
9891 ret
= i40e_vsi_config_rss(vsi
);
9896 i40e_vsi_free_q_vectors(vsi
);
9898 if (vsi
->netdev_registered
) {
9899 vsi
->netdev_registered
= false;
9900 unregister_netdev(vsi
->netdev
);
9901 free_netdev(vsi
->netdev
);
9905 i40e_aq_delete_element(&pf
->hw
, vsi
->seid
, NULL
);
9907 i40e_vsi_clear(vsi
);
9913 * i40e_veb_get_bw_info - Query VEB BW information
9914 * @veb: the veb to query
9916 * Query the Tx scheduler BW configuration data for given VEB
9918 static int i40e_veb_get_bw_info(struct i40e_veb
*veb
)
9920 struct i40e_aqc_query_switching_comp_ets_config_resp ets_data
;
9921 struct i40e_aqc_query_switching_comp_bw_config_resp bw_data
;
9922 struct i40e_pf
*pf
= veb
->pf
;
9923 struct i40e_hw
*hw
= &pf
->hw
;
9928 ret
= i40e_aq_query_switch_comp_bw_config(hw
, veb
->seid
,
9931 dev_info(&pf
->pdev
->dev
,
9932 "query veb bw config failed, err %s aq_err %s\n",
9933 i40e_stat_str(&pf
->hw
, ret
),
9934 i40e_aq_str(&pf
->hw
, hw
->aq
.asq_last_status
));
9938 ret
= i40e_aq_query_switch_comp_ets_config(hw
, veb
->seid
,
9941 dev_info(&pf
->pdev
->dev
,
9942 "query veb bw ets config failed, err %s aq_err %s\n",
9943 i40e_stat_str(&pf
->hw
, ret
),
9944 i40e_aq_str(&pf
->hw
, hw
->aq
.asq_last_status
));
9948 veb
->bw_limit
= le16_to_cpu(ets_data
.port_bw_limit
);
9949 veb
->bw_max_quanta
= ets_data
.tc_bw_max
;
9950 veb
->is_abs_credits
= bw_data
.absolute_credits_enable
;
9951 veb
->enabled_tc
= ets_data
.tc_valid_bits
;
9952 tc_bw_max
= le16_to_cpu(bw_data
.tc_bw_max
[0]) |
9953 (le16_to_cpu(bw_data
.tc_bw_max
[1]) << 16);
9954 for (i
= 0; i
< I40E_MAX_TRAFFIC_CLASS
; i
++) {
9955 veb
->bw_tc_share_credits
[i
] = bw_data
.tc_bw_share_credits
[i
];
9956 veb
->bw_tc_limit_credits
[i
] =
9957 le16_to_cpu(bw_data
.tc_bw_limits
[i
]);
9958 veb
->bw_tc_max_quanta
[i
] = ((tc_bw_max
>> (i
*4)) & 0x7);
9966 * i40e_veb_mem_alloc - Allocates the next available struct veb in the PF
9967 * @pf: board private structure
9969 * On error: returns error code (negative)
9970 * On success: returns vsi index in PF (positive)
9972 static int i40e_veb_mem_alloc(struct i40e_pf
*pf
)
9975 struct i40e_veb
*veb
;
9978 /* Need to protect the allocation of switch elements at the PF level */
9979 mutex_lock(&pf
->switch_mutex
);
9981 /* VEB list may be fragmented if VEB creation/destruction has
9982 * been happening. We can afford to do a quick scan to look
9983 * for any free slots in the list.
9985 * find next empty veb slot, looping back around if necessary
9988 while ((i
< I40E_MAX_VEB
) && (pf
->veb
[i
] != NULL
))
9990 if (i
>= I40E_MAX_VEB
) {
9992 goto err_alloc_veb
; /* out of VEB slots! */
9995 veb
= kzalloc(sizeof(*veb
), GFP_KERNEL
);
10002 veb
->enabled_tc
= 1;
10007 mutex_unlock(&pf
->switch_mutex
);
10012 * i40e_switch_branch_release - Delete a branch of the switch tree
10013 * @branch: where to start deleting
10015 * This uses recursion to find the tips of the branch to be
10016 * removed, deleting until we get back to and can delete this VEB.
10018 static void i40e_switch_branch_release(struct i40e_veb
*branch
)
10020 struct i40e_pf
*pf
= branch
->pf
;
10021 u16 branch_seid
= branch
->seid
;
10022 u16 veb_idx
= branch
->idx
;
10025 /* release any VEBs on this VEB - RECURSION */
10026 for (i
= 0; i
< I40E_MAX_VEB
; i
++) {
10029 if (pf
->veb
[i
]->uplink_seid
== branch
->seid
)
10030 i40e_switch_branch_release(pf
->veb
[i
]);
10033 /* Release the VSIs on this VEB, but not the owner VSI.
10035 * NOTE: Removing the last VSI on a VEB has the SIDE EFFECT of removing
10036 * the VEB itself, so don't use (*branch) after this loop.
10038 for (i
= 0; i
< pf
->num_alloc_vsi
; i
++) {
10041 if (pf
->vsi
[i
]->uplink_seid
== branch_seid
&&
10042 (pf
->vsi
[i
]->flags
& I40E_VSI_FLAG_VEB_OWNER
) == 0) {
10043 i40e_vsi_release(pf
->vsi
[i
]);
10047 /* There's one corner case where the VEB might not have been
10048 * removed, so double check it here and remove it if needed.
10049 * This case happens if the veb was created from the debugfs
10050 * commands and no VSIs were added to it.
10052 if (pf
->veb
[veb_idx
])
10053 i40e_veb_release(pf
->veb
[veb_idx
]);
10057 * i40e_veb_clear - remove veb struct
10058 * @veb: the veb to remove
10060 static void i40e_veb_clear(struct i40e_veb
*veb
)
10066 struct i40e_pf
*pf
= veb
->pf
;
10068 mutex_lock(&pf
->switch_mutex
);
10069 if (pf
->veb
[veb
->idx
] == veb
)
10070 pf
->veb
[veb
->idx
] = NULL
;
10071 mutex_unlock(&pf
->switch_mutex
);
10078 * i40e_veb_release - Delete a VEB and free its resources
10079 * @veb: the VEB being removed
10081 void i40e_veb_release(struct i40e_veb
*veb
)
10083 struct i40e_vsi
*vsi
= NULL
;
10084 struct i40e_pf
*pf
;
10089 /* find the remaining VSI and check for extras */
10090 for (i
= 0; i
< pf
->num_alloc_vsi
; i
++) {
10091 if (pf
->vsi
[i
] && pf
->vsi
[i
]->uplink_seid
== veb
->seid
) {
10097 dev_info(&pf
->pdev
->dev
,
10098 "can't remove VEB %d with %d VSIs left\n",
10103 /* move the remaining VSI to uplink veb */
10104 vsi
->flags
&= ~I40E_VSI_FLAG_VEB_OWNER
;
10105 if (veb
->uplink_seid
) {
10106 vsi
->uplink_seid
= veb
->uplink_seid
;
10107 if (veb
->uplink_seid
== pf
->mac_seid
)
10108 vsi
->veb_idx
= I40E_NO_VEB
;
10110 vsi
->veb_idx
= veb
->veb_idx
;
10113 vsi
->uplink_seid
= pf
->vsi
[pf
->lan_vsi
]->uplink_seid
;
10114 vsi
->veb_idx
= pf
->vsi
[pf
->lan_vsi
]->veb_idx
;
10117 i40e_aq_delete_element(&pf
->hw
, veb
->seid
, NULL
);
10118 i40e_veb_clear(veb
);
10122 * i40e_add_veb - create the VEB in the switch
10123 * @veb: the VEB to be instantiated
10124 * @vsi: the controlling VSI
10126 static int i40e_add_veb(struct i40e_veb
*veb
, struct i40e_vsi
*vsi
)
10128 struct i40e_pf
*pf
= veb
->pf
;
10129 bool enable_stats
= !!(pf
->flags
& I40E_FLAG_VEB_STATS_ENABLED
);
10132 ret
= i40e_aq_add_veb(&pf
->hw
, veb
->uplink_seid
, vsi
->seid
,
10133 veb
->enabled_tc
, false,
10134 &veb
->seid
, enable_stats
, NULL
);
10136 /* get a VEB from the hardware */
10138 dev_info(&pf
->pdev
->dev
,
10139 "couldn't add VEB, err %s aq_err %s\n",
10140 i40e_stat_str(&pf
->hw
, ret
),
10141 i40e_aq_str(&pf
->hw
, pf
->hw
.aq
.asq_last_status
));
10145 /* get statistics counter */
10146 ret
= i40e_aq_get_veb_parameters(&pf
->hw
, veb
->seid
, NULL
, NULL
,
10147 &veb
->stats_idx
, NULL
, NULL
, NULL
);
10149 dev_info(&pf
->pdev
->dev
,
10150 "couldn't get VEB statistics idx, err %s aq_err %s\n",
10151 i40e_stat_str(&pf
->hw
, ret
),
10152 i40e_aq_str(&pf
->hw
, pf
->hw
.aq
.asq_last_status
));
10155 ret
= i40e_veb_get_bw_info(veb
);
10157 dev_info(&pf
->pdev
->dev
,
10158 "couldn't get VEB bw info, err %s aq_err %s\n",
10159 i40e_stat_str(&pf
->hw
, ret
),
10160 i40e_aq_str(&pf
->hw
, pf
->hw
.aq
.asq_last_status
));
10161 i40e_aq_delete_element(&pf
->hw
, veb
->seid
, NULL
);
10165 vsi
->uplink_seid
= veb
->seid
;
10166 vsi
->veb_idx
= veb
->idx
;
10167 vsi
->flags
|= I40E_VSI_FLAG_VEB_OWNER
;
10173 * i40e_veb_setup - Set up a VEB
10174 * @pf: board private structure
10175 * @flags: VEB setup flags
10176 * @uplink_seid: the switch element to link to
10177 * @vsi_seid: the initial VSI seid
10178 * @enabled_tc: Enabled TC bit-map
10180 * This allocates the sw VEB structure and links it into the switch
10181 * It is possible and legal for this to be a duplicate of an already
10182 * existing VEB. It is also possible for both uplink and vsi seids
10183 * to be zero, in order to create a floating VEB.
10185 * Returns pointer to the successfully allocated VEB sw struct on
10186 * success, otherwise returns NULL on failure.
10188 struct i40e_veb
*i40e_veb_setup(struct i40e_pf
*pf
, u16 flags
,
10189 u16 uplink_seid
, u16 vsi_seid
,
10192 struct i40e_veb
*veb
, *uplink_veb
= NULL
;
10193 int vsi_idx
, veb_idx
;
10196 /* if one seid is 0, the other must be 0 to create a floating relay */
10197 if ((uplink_seid
== 0 || vsi_seid
== 0) &&
10198 (uplink_seid
+ vsi_seid
!= 0)) {
10199 dev_info(&pf
->pdev
->dev
,
10200 "one, not both seid's are 0: uplink=%d vsi=%d\n",
10201 uplink_seid
, vsi_seid
);
10205 /* make sure there is such a vsi and uplink */
10206 for (vsi_idx
= 0; vsi_idx
< pf
->num_alloc_vsi
; vsi_idx
++)
10207 if (pf
->vsi
[vsi_idx
] && pf
->vsi
[vsi_idx
]->seid
== vsi_seid
)
10209 if (vsi_idx
>= pf
->num_alloc_vsi
&& vsi_seid
!= 0) {
10210 dev_info(&pf
->pdev
->dev
, "vsi seid %d not found\n",
10215 if (uplink_seid
&& uplink_seid
!= pf
->mac_seid
) {
10216 for (veb_idx
= 0; veb_idx
< I40E_MAX_VEB
; veb_idx
++) {
10217 if (pf
->veb
[veb_idx
] &&
10218 pf
->veb
[veb_idx
]->seid
== uplink_seid
) {
10219 uplink_veb
= pf
->veb
[veb_idx
];
10224 dev_info(&pf
->pdev
->dev
,
10225 "uplink seid %d not found\n", uplink_seid
);
10230 /* get veb sw struct */
10231 veb_idx
= i40e_veb_mem_alloc(pf
);
10234 veb
= pf
->veb
[veb_idx
];
10235 veb
->flags
= flags
;
10236 veb
->uplink_seid
= uplink_seid
;
10237 veb
->veb_idx
= (uplink_veb
? uplink_veb
->idx
: I40E_NO_VEB
);
10238 veb
->enabled_tc
= (enabled_tc
? enabled_tc
: 0x1);
10240 /* create the VEB in the switch */
10241 ret
= i40e_add_veb(veb
, pf
->vsi
[vsi_idx
]);
10244 if (vsi_idx
== pf
->lan_vsi
)
10245 pf
->lan_veb
= veb
->idx
;
10250 i40e_veb_clear(veb
);
10256 * i40e_setup_pf_switch_element - set PF vars based on switch type
10257 * @pf: board private structure
10258 * @ele: element we are building info from
10259 * @num_reported: total number of elements
10260 * @printconfig: should we print the contents
10262 * helper function to assist in extracting a few useful SEID values.
10264 static void i40e_setup_pf_switch_element(struct i40e_pf
*pf
,
10265 struct i40e_aqc_switch_config_element_resp
*ele
,
10266 u16 num_reported
, bool printconfig
)
10268 u16 downlink_seid
= le16_to_cpu(ele
->downlink_seid
);
10269 u16 uplink_seid
= le16_to_cpu(ele
->uplink_seid
);
10270 u8 element_type
= ele
->element_type
;
10271 u16 seid
= le16_to_cpu(ele
->seid
);
10274 dev_info(&pf
->pdev
->dev
,
10275 "type=%d seid=%d uplink=%d downlink=%d\n",
10276 element_type
, seid
, uplink_seid
, downlink_seid
);
10278 switch (element_type
) {
10279 case I40E_SWITCH_ELEMENT_TYPE_MAC
:
10280 pf
->mac_seid
= seid
;
10282 case I40E_SWITCH_ELEMENT_TYPE_VEB
:
10284 if (uplink_seid
!= pf
->mac_seid
)
10286 if (pf
->lan_veb
== I40E_NO_VEB
) {
10289 /* find existing or else empty VEB */
10290 for (v
= 0; v
< I40E_MAX_VEB
; v
++) {
10291 if (pf
->veb
[v
] && (pf
->veb
[v
]->seid
== seid
)) {
10296 if (pf
->lan_veb
== I40E_NO_VEB
) {
10297 v
= i40e_veb_mem_alloc(pf
);
10304 pf
->veb
[pf
->lan_veb
]->seid
= seid
;
10305 pf
->veb
[pf
->lan_veb
]->uplink_seid
= pf
->mac_seid
;
10306 pf
->veb
[pf
->lan_veb
]->pf
= pf
;
10307 pf
->veb
[pf
->lan_veb
]->veb_idx
= I40E_NO_VEB
;
10309 case I40E_SWITCH_ELEMENT_TYPE_VSI
:
10310 if (num_reported
!= 1)
10312 /* This is immediately after a reset so we can assume this is
10315 pf
->mac_seid
= uplink_seid
;
10316 pf
->pf_seid
= downlink_seid
;
10317 pf
->main_vsi_seid
= seid
;
10319 dev_info(&pf
->pdev
->dev
,
10320 "pf_seid=%d main_vsi_seid=%d\n",
10321 pf
->pf_seid
, pf
->main_vsi_seid
);
10323 case I40E_SWITCH_ELEMENT_TYPE_PF
:
10324 case I40E_SWITCH_ELEMENT_TYPE_VF
:
10325 case I40E_SWITCH_ELEMENT_TYPE_EMP
:
10326 case I40E_SWITCH_ELEMENT_TYPE_BMC
:
10327 case I40E_SWITCH_ELEMENT_TYPE_PE
:
10328 case I40E_SWITCH_ELEMENT_TYPE_PA
:
10329 /* ignore these for now */
10332 dev_info(&pf
->pdev
->dev
, "unknown element type=%d seid=%d\n",
10333 element_type
, seid
);
10339 * i40e_fetch_switch_configuration - Get switch config from firmware
10340 * @pf: board private structure
10341 * @printconfig: should we print the contents
10343 * Get the current switch configuration from the device and
10344 * extract a few useful SEID values.
10346 int i40e_fetch_switch_configuration(struct i40e_pf
*pf
, bool printconfig
)
10348 struct i40e_aqc_get_switch_config_resp
*sw_config
;
10354 aq_buf
= kzalloc(I40E_AQ_LARGE_BUF
, GFP_KERNEL
);
10358 sw_config
= (struct i40e_aqc_get_switch_config_resp
*)aq_buf
;
10360 u16 num_reported
, num_total
;
10362 ret
= i40e_aq_get_switch_config(&pf
->hw
, sw_config
,
10366 dev_info(&pf
->pdev
->dev
,
10367 "get switch config failed err %s aq_err %s\n",
10368 i40e_stat_str(&pf
->hw
, ret
),
10369 i40e_aq_str(&pf
->hw
,
10370 pf
->hw
.aq
.asq_last_status
));
10375 num_reported
= le16_to_cpu(sw_config
->header
.num_reported
);
10376 num_total
= le16_to_cpu(sw_config
->header
.num_total
);
10379 dev_info(&pf
->pdev
->dev
,
10380 "header: %d reported %d total\n",
10381 num_reported
, num_total
);
10383 for (i
= 0; i
< num_reported
; i
++) {
10384 struct i40e_aqc_switch_config_element_resp
*ele
=
10385 &sw_config
->element
[i
];
10387 i40e_setup_pf_switch_element(pf
, ele
, num_reported
,
10390 } while (next_seid
!= 0);
10397 * i40e_setup_pf_switch - Setup the HW switch on startup or after reset
10398 * @pf: board private structure
10399 * @reinit: if the Main VSI needs to re-initialized.
10401 * Returns 0 on success, negative value on failure
10403 static int i40e_setup_pf_switch(struct i40e_pf
*pf
, bool reinit
)
10408 /* find out what's out there already */
10409 ret
= i40e_fetch_switch_configuration(pf
, false);
10411 dev_info(&pf
->pdev
->dev
,
10412 "couldn't fetch switch config, err %s aq_err %s\n",
10413 i40e_stat_str(&pf
->hw
, ret
),
10414 i40e_aq_str(&pf
->hw
, pf
->hw
.aq
.asq_last_status
));
10417 i40e_pf_reset_stats(pf
);
10419 /* set the switch config bit for the whole device to
10420 * support limited promisc or true promisc
10421 * when user requests promisc. The default is limited
10425 if ((pf
->hw
.pf_id
== 0) &&
10426 !(pf
->flags
& I40E_FLAG_TRUE_PROMISC_SUPPORT
))
10427 flags
= I40E_AQ_SET_SWITCH_CFG_PROMISC
;
10429 if (pf
->hw
.pf_id
== 0) {
10432 valid_flags
= I40E_AQ_SET_SWITCH_CFG_PROMISC
;
10433 ret
= i40e_aq_set_switch_config(&pf
->hw
, flags
, valid_flags
,
10435 if (ret
&& pf
->hw
.aq
.asq_last_status
!= I40E_AQ_RC_ESRCH
) {
10436 dev_info(&pf
->pdev
->dev
,
10437 "couldn't set switch config bits, err %s aq_err %s\n",
10438 i40e_stat_str(&pf
->hw
, ret
),
10439 i40e_aq_str(&pf
->hw
,
10440 pf
->hw
.aq
.asq_last_status
));
10441 /* not a fatal problem, just keep going */
10445 /* first time setup */
10446 if (pf
->lan_vsi
== I40E_NO_VSI
|| reinit
) {
10447 struct i40e_vsi
*vsi
= NULL
;
10450 /* Set up the PF VSI associated with the PF's main VSI
10451 * that is already in the HW switch
10453 if (pf
->lan_veb
!= I40E_NO_VEB
&& pf
->veb
[pf
->lan_veb
])
10454 uplink_seid
= pf
->veb
[pf
->lan_veb
]->seid
;
10456 uplink_seid
= pf
->mac_seid
;
10457 if (pf
->lan_vsi
== I40E_NO_VSI
)
10458 vsi
= i40e_vsi_setup(pf
, I40E_VSI_MAIN
, uplink_seid
, 0);
10460 vsi
= i40e_vsi_reinit_setup(pf
->vsi
[pf
->lan_vsi
]);
10462 dev_info(&pf
->pdev
->dev
, "setup of MAIN VSI failed\n");
10463 i40e_fdir_teardown(pf
);
10467 /* force a reset of TC and queue layout configurations */
10468 u8 enabled_tc
= pf
->vsi
[pf
->lan_vsi
]->tc_config
.enabled_tc
;
10470 pf
->vsi
[pf
->lan_vsi
]->tc_config
.enabled_tc
= 0;
10471 pf
->vsi
[pf
->lan_vsi
]->seid
= pf
->main_vsi_seid
;
10472 i40e_vsi_config_tc(pf
->vsi
[pf
->lan_vsi
], enabled_tc
);
10474 i40e_vlan_stripping_disable(pf
->vsi
[pf
->lan_vsi
]);
10476 i40e_fdir_sb_setup(pf
);
10478 /* Setup static PF queue filter control settings */
10479 ret
= i40e_setup_pf_filter_control(pf
);
10481 dev_info(&pf
->pdev
->dev
, "setup_pf_filter_control failed: %d\n",
10483 /* Failure here should not stop continuing other steps */
10486 /* enable RSS in the HW, even for only one queue, as the stack can use
10489 if ((pf
->flags
& I40E_FLAG_RSS_ENABLED
))
10490 i40e_pf_config_rss(pf
);
10492 /* fill in link information and enable LSE reporting */
10493 i40e_update_link_info(&pf
->hw
);
10494 i40e_link_event(pf
);
10496 /* Initialize user-specific link properties */
10497 pf
->fc_autoneg_status
= ((pf
->hw
.phy
.link_info
.an_info
&
10498 I40E_AQ_AN_COMPLETED
) ? true : false);
10506 * i40e_determine_queue_usage - Work out queue distribution
10507 * @pf: board private structure
10509 static void i40e_determine_queue_usage(struct i40e_pf
*pf
)
10513 pf
->num_lan_qps
= 0;
10515 pf
->num_fcoe_qps
= 0;
10518 /* Find the max queues to be put into basic use. We'll always be
10519 * using TC0, whether or not DCB is running, and TC0 will get the
10522 queues_left
= pf
->hw
.func_caps
.num_tx_qp
;
10524 if ((queues_left
== 1) ||
10525 !(pf
->flags
& I40E_FLAG_MSIX_ENABLED
)) {
10526 /* one qp for PF, no queues for anything else */
10528 pf
->alloc_rss_size
= pf
->num_lan_qps
= 1;
10530 /* make sure all the fancies are disabled */
10531 pf
->flags
&= ~(I40E_FLAG_RSS_ENABLED
|
10532 I40E_FLAG_IWARP_ENABLED
|
10534 I40E_FLAG_FCOE_ENABLED
|
10536 I40E_FLAG_FD_SB_ENABLED
|
10537 I40E_FLAG_FD_ATR_ENABLED
|
10538 I40E_FLAG_DCB_CAPABLE
|
10539 I40E_FLAG_DCB_ENABLED
|
10540 I40E_FLAG_SRIOV_ENABLED
|
10541 I40E_FLAG_VMDQ_ENABLED
);
10542 } else if (!(pf
->flags
& (I40E_FLAG_RSS_ENABLED
|
10543 I40E_FLAG_FD_SB_ENABLED
|
10544 I40E_FLAG_FD_ATR_ENABLED
|
10545 I40E_FLAG_DCB_CAPABLE
))) {
10546 /* one qp for PF */
10547 pf
->alloc_rss_size
= pf
->num_lan_qps
= 1;
10548 queues_left
-= pf
->num_lan_qps
;
10550 pf
->flags
&= ~(I40E_FLAG_RSS_ENABLED
|
10551 I40E_FLAG_IWARP_ENABLED
|
10553 I40E_FLAG_FCOE_ENABLED
|
10555 I40E_FLAG_FD_SB_ENABLED
|
10556 I40E_FLAG_FD_ATR_ENABLED
|
10557 I40E_FLAG_DCB_ENABLED
|
10558 I40E_FLAG_VMDQ_ENABLED
);
10560 /* Not enough queues for all TCs */
10561 if ((pf
->flags
& I40E_FLAG_DCB_CAPABLE
) &&
10562 (queues_left
< I40E_MAX_TRAFFIC_CLASS
)) {
10563 pf
->flags
&= ~(I40E_FLAG_DCB_CAPABLE
|
10564 I40E_FLAG_DCB_ENABLED
);
10565 dev_info(&pf
->pdev
->dev
, "not enough queues for DCB. DCB is disabled.\n");
10567 pf
->num_lan_qps
= max_t(int, pf
->rss_size_max
,
10568 num_online_cpus());
10569 pf
->num_lan_qps
= min_t(int, pf
->num_lan_qps
,
10570 pf
->hw
.func_caps
.num_tx_qp
);
10572 queues_left
-= pf
->num_lan_qps
;
10576 if (pf
->flags
& I40E_FLAG_FCOE_ENABLED
) {
10577 if (I40E_DEFAULT_FCOE
<= queues_left
) {
10578 pf
->num_fcoe_qps
= I40E_DEFAULT_FCOE
;
10579 } else if (I40E_MINIMUM_FCOE
<= queues_left
) {
10580 pf
->num_fcoe_qps
= I40E_MINIMUM_FCOE
;
10582 pf
->num_fcoe_qps
= 0;
10583 pf
->flags
&= ~I40E_FLAG_FCOE_ENABLED
;
10584 dev_info(&pf
->pdev
->dev
, "not enough queues for FCoE. FCoE feature will be disabled\n");
10587 queues_left
-= pf
->num_fcoe_qps
;
10591 if (pf
->flags
& I40E_FLAG_FD_SB_ENABLED
) {
10592 if (queues_left
> 1) {
10593 queues_left
-= 1; /* save 1 queue for FD */
10595 pf
->flags
&= ~I40E_FLAG_FD_SB_ENABLED
;
10596 dev_info(&pf
->pdev
->dev
, "not enough queues for Flow Director. Flow Director feature is disabled\n");
10600 if ((pf
->flags
& I40E_FLAG_SRIOV_ENABLED
) &&
10601 pf
->num_vf_qps
&& pf
->num_req_vfs
&& queues_left
) {
10602 pf
->num_req_vfs
= min_t(int, pf
->num_req_vfs
,
10603 (queues_left
/ pf
->num_vf_qps
));
10604 queues_left
-= (pf
->num_req_vfs
* pf
->num_vf_qps
);
10607 if ((pf
->flags
& I40E_FLAG_VMDQ_ENABLED
) &&
10608 pf
->num_vmdq_vsis
&& pf
->num_vmdq_qps
&& queues_left
) {
10609 pf
->num_vmdq_vsis
= min_t(int, pf
->num_vmdq_vsis
,
10610 (queues_left
/ pf
->num_vmdq_qps
));
10611 queues_left
-= (pf
->num_vmdq_vsis
* pf
->num_vmdq_qps
);
10614 pf
->queues_left
= queues_left
;
10615 dev_dbg(&pf
->pdev
->dev
,
10616 "qs_avail=%d FD SB=%d lan_qs=%d lan_tc0=%d vf=%d*%d vmdq=%d*%d, remaining=%d\n",
10617 pf
->hw
.func_caps
.num_tx_qp
,
10618 !!(pf
->flags
& I40E_FLAG_FD_SB_ENABLED
),
10619 pf
->num_lan_qps
, pf
->alloc_rss_size
, pf
->num_req_vfs
,
10620 pf
->num_vf_qps
, pf
->num_vmdq_vsis
, pf
->num_vmdq_qps
,
10623 dev_dbg(&pf
->pdev
->dev
, "fcoe queues = %d\n", pf
->num_fcoe_qps
);
10628 * i40e_setup_pf_filter_control - Setup PF static filter control
10629 * @pf: PF to be setup
10631 * i40e_setup_pf_filter_control sets up a PF's initial filter control
10632 * settings. If PE/FCoE are enabled then it will also set the per PF
10633 * based filter sizes required for them. It also enables Flow director,
10634 * ethertype and macvlan type filter settings for the pf.
10636 * Returns 0 on success, negative on failure
10638 static int i40e_setup_pf_filter_control(struct i40e_pf
*pf
)
10640 struct i40e_filter_control_settings
*settings
= &pf
->filter_settings
;
10642 settings
->hash_lut_size
= I40E_HASH_LUT_SIZE_128
;
10644 /* Flow Director is enabled */
10645 if (pf
->flags
& (I40E_FLAG_FD_SB_ENABLED
| I40E_FLAG_FD_ATR_ENABLED
))
10646 settings
->enable_fdir
= true;
10648 /* Ethtype and MACVLAN filters enabled for PF */
10649 settings
->enable_ethtype
= true;
10650 settings
->enable_macvlan
= true;
10652 if (i40e_set_filter_control(&pf
->hw
, settings
))
10658 #define INFO_STRING_LEN 255
10659 #define REMAIN(__x) (INFO_STRING_LEN - (__x))
10660 static void i40e_print_features(struct i40e_pf
*pf
)
10662 struct i40e_hw
*hw
= &pf
->hw
;
10666 buf
= kmalloc(INFO_STRING_LEN
, GFP_KERNEL
);
10670 i
= snprintf(buf
, INFO_STRING_LEN
, "Features: PF-id[%d]", hw
->pf_id
);
10671 #ifdef CONFIG_PCI_IOV
10672 i
+= snprintf(&buf
[i
], REMAIN(i
), " VFs: %d", pf
->num_req_vfs
);
10674 i
+= snprintf(&buf
[i
], REMAIN(i
), " VSIs: %d QP: %d",
10675 pf
->hw
.func_caps
.num_vsis
,
10676 pf
->vsi
[pf
->lan_vsi
]->num_queue_pairs
);
10677 if (pf
->flags
& I40E_FLAG_RSS_ENABLED
)
10678 i
+= snprintf(&buf
[i
], REMAIN(i
), " RSS");
10679 if (pf
->flags
& I40E_FLAG_FD_ATR_ENABLED
)
10680 i
+= snprintf(&buf
[i
], REMAIN(i
), " FD_ATR");
10681 if (pf
->flags
& I40E_FLAG_FD_SB_ENABLED
) {
10682 i
+= snprintf(&buf
[i
], REMAIN(i
), " FD_SB");
10683 i
+= snprintf(&buf
[i
], REMAIN(i
), " NTUPLE");
10685 if (pf
->flags
& I40E_FLAG_DCB_CAPABLE
)
10686 i
+= snprintf(&buf
[i
], REMAIN(i
), " DCB");
10687 i
+= snprintf(&buf
[i
], REMAIN(i
), " VxLAN");
10688 i
+= snprintf(&buf
[i
], REMAIN(i
), " Geneve");
10689 if (pf
->flags
& I40E_FLAG_PTP
)
10690 i
+= snprintf(&buf
[i
], REMAIN(i
), " PTP");
10692 if (pf
->flags
& I40E_FLAG_FCOE_ENABLED
)
10693 i
+= snprintf(&buf
[i
], REMAIN(i
), " FCOE");
10695 if (pf
->flags
& I40E_FLAG_VEB_MODE_ENABLED
)
10696 i
+= snprintf(&buf
[i
], REMAIN(i
), " VEB");
10698 i
+= snprintf(&buf
[i
], REMAIN(i
), " VEPA");
10700 dev_info(&pf
->pdev
->dev
, "%s\n", buf
);
10702 WARN_ON(i
> INFO_STRING_LEN
);
10706 * i40e_get_platform_mac_addr - get platform-specific MAC address
10708 * @pdev: PCI device information struct
10709 * @pf: board private structure
10711 * Look up the MAC address in Open Firmware on systems that support it,
10712 * and use IDPROM on SPARC if no OF address is found. On return, the
10713 * I40E_FLAG_PF_MAC will be wset in pf->flags if a platform-specific value
10714 * has been selected.
10716 static void i40e_get_platform_mac_addr(struct pci_dev
*pdev
, struct i40e_pf
*pf
)
10718 pf
->flags
&= ~I40E_FLAG_PF_MAC
;
10719 if (!eth_platform_get_mac_address(&pdev
->dev
, pf
->hw
.mac
.addr
))
10720 pf
->flags
|= I40E_FLAG_PF_MAC
;
10724 * i40e_probe - Device initialization routine
10725 * @pdev: PCI device information struct
10726 * @ent: entry in i40e_pci_tbl
10728 * i40e_probe initializes a PF identified by a pci_dev structure.
10729 * The OS initialization, configuring of the PF private structure,
10730 * and a hardware reset occur.
10732 * Returns 0 on success, negative on failure
10734 static int i40e_probe(struct pci_dev
*pdev
, const struct pci_device_id
*ent
)
10736 struct i40e_aq_get_phy_abilities_resp abilities
;
10737 struct i40e_pf
*pf
;
10738 struct i40e_hw
*hw
;
10739 static u16 pfs_found
;
10747 err
= pci_enable_device_mem(pdev
);
10751 /* set up for high or low dma */
10752 err
= dma_set_mask_and_coherent(&pdev
->dev
, DMA_BIT_MASK(64));
10754 err
= dma_set_mask_and_coherent(&pdev
->dev
, DMA_BIT_MASK(32));
10756 dev_err(&pdev
->dev
,
10757 "DMA configuration failed: 0x%x\n", err
);
10762 /* set up pci connections */
10763 err
= pci_request_mem_regions(pdev
, i40e_driver_name
);
10765 dev_info(&pdev
->dev
,
10766 "pci_request_selected_regions failed %d\n", err
);
10770 pci_enable_pcie_error_reporting(pdev
);
10771 pci_set_master(pdev
);
10773 /* Now that we have a PCI connection, we need to do the
10774 * low level device setup. This is primarily setting up
10775 * the Admin Queue structures and then querying for the
10776 * device's current profile information.
10778 pf
= kzalloc(sizeof(*pf
), GFP_KERNEL
);
10785 set_bit(__I40E_DOWN
, &pf
->state
);
10790 pf
->ioremap_len
= min_t(int, pci_resource_len(pdev
, 0),
10791 I40E_MAX_CSR_SPACE
);
10793 hw
->hw_addr
= ioremap(pci_resource_start(pdev
, 0), pf
->ioremap_len
);
10794 if (!hw
->hw_addr
) {
10796 dev_info(&pdev
->dev
, "ioremap(0x%04x, 0x%04x) failed: 0x%x\n",
10797 (unsigned int)pci_resource_start(pdev
, 0),
10798 pf
->ioremap_len
, err
);
10801 hw
->vendor_id
= pdev
->vendor
;
10802 hw
->device_id
= pdev
->device
;
10803 pci_read_config_byte(pdev
, PCI_REVISION_ID
, &hw
->revision_id
);
10804 hw
->subsystem_vendor_id
= pdev
->subsystem_vendor
;
10805 hw
->subsystem_device_id
= pdev
->subsystem_device
;
10806 hw
->bus
.device
= PCI_SLOT(pdev
->devfn
);
10807 hw
->bus
.func
= PCI_FUNC(pdev
->devfn
);
10808 pf
->instance
= pfs_found
;
10810 /* set up the locks for the AQ, do this only once in probe
10811 * and destroy them only once in remove
10813 mutex_init(&hw
->aq
.asq_mutex
);
10814 mutex_init(&hw
->aq
.arq_mutex
);
10817 pf
->msg_enable
= pf
->hw
.debug_mask
;
10818 pf
->msg_enable
= debug
;
10821 /* do a special CORER for clearing PXE mode once at init */
10822 if (hw
->revision_id
== 0 &&
10823 (rd32(hw
, I40E_GLLAN_RCTL_0
) & I40E_GLLAN_RCTL_0_PXE_MODE_MASK
)) {
10824 wr32(hw
, I40E_GLGEN_RTRIG
, I40E_GLGEN_RTRIG_CORER_MASK
);
10829 i40e_clear_pxe_mode(hw
);
10832 /* Reset here to make sure all is clean and to define PF 'n' */
10834 err
= i40e_pf_reset(hw
);
10836 dev_info(&pdev
->dev
, "Initial pf_reset failed: %d\n", err
);
10841 hw
->aq
.num_arq_entries
= I40E_AQ_LEN
;
10842 hw
->aq
.num_asq_entries
= I40E_AQ_LEN
;
10843 hw
->aq
.arq_buf_size
= I40E_MAX_AQ_BUF_SIZE
;
10844 hw
->aq
.asq_buf_size
= I40E_MAX_AQ_BUF_SIZE
;
10845 pf
->adminq_work_limit
= I40E_AQ_WORK_LIMIT
;
10847 snprintf(pf
->int_name
, sizeof(pf
->int_name
) - 1,
10849 dev_driver_string(&pf
->pdev
->dev
), dev_name(&pdev
->dev
));
10851 err
= i40e_init_shared_code(hw
);
10853 dev_warn(&pdev
->dev
, "unidentified MAC or BLANK NVM: %d\n",
10858 /* set up a default setting for link flow control */
10859 pf
->hw
.fc
.requested_mode
= I40E_FC_NONE
;
10861 err
= i40e_init_adminq(hw
);
10863 if (err
== I40E_ERR_FIRMWARE_API_VERSION
)
10864 dev_info(&pdev
->dev
,
10865 "The driver for the device stopped because the NVM image is newer than expected. You must install the most recent version of the network driver.\n");
10867 dev_info(&pdev
->dev
,
10868 "The driver for the device stopped because the device firmware failed to init. Try updating your NVM image.\n");
10873 /* provide nvm, fw, api versions */
10874 dev_info(&pdev
->dev
, "fw %d.%d.%05d api %d.%d nvm %s\n",
10875 hw
->aq
.fw_maj_ver
, hw
->aq
.fw_min_ver
, hw
->aq
.fw_build
,
10876 hw
->aq
.api_maj_ver
, hw
->aq
.api_min_ver
,
10877 i40e_nvm_version_str(hw
));
10879 if (hw
->aq
.api_maj_ver
== I40E_FW_API_VERSION_MAJOR
&&
10880 hw
->aq
.api_min_ver
> I40E_FW_API_VERSION_MINOR
)
10881 dev_info(&pdev
->dev
,
10882 "The driver for the device detected a newer version of the NVM image than expected. Please install the most recent version of the network driver.\n");
10883 else if (hw
->aq
.api_maj_ver
< I40E_FW_API_VERSION_MAJOR
||
10884 hw
->aq
.api_min_ver
< (I40E_FW_API_VERSION_MINOR
- 1))
10885 dev_info(&pdev
->dev
,
10886 "The driver for the device detected an older version of the NVM image than expected. Please update the NVM image.\n");
10888 i40e_verify_eeprom(pf
);
10890 /* Rev 0 hardware was never productized */
10891 if (hw
->revision_id
< 1)
10892 dev_warn(&pdev
->dev
, "This device is a pre-production adapter/LOM. Please be aware there may be issues with your hardware. If you are experiencing problems please contact your Intel or hardware representative who provided you with this hardware.\n");
10894 i40e_clear_pxe_mode(hw
);
10895 err
= i40e_get_capabilities(pf
);
10897 goto err_adminq_setup
;
10899 err
= i40e_sw_init(pf
);
10901 dev_info(&pdev
->dev
, "sw_init failed: %d\n", err
);
10905 err
= i40e_init_lan_hmc(hw
, hw
->func_caps
.num_tx_qp
,
10906 hw
->func_caps
.num_rx_qp
,
10907 pf
->fcoe_hmc_cntx_num
, pf
->fcoe_hmc_filt_num
);
10909 dev_info(&pdev
->dev
, "init_lan_hmc failed: %d\n", err
);
10910 goto err_init_lan_hmc
;
10913 err
= i40e_configure_lan_hmc(hw
, I40E_HMC_MODEL_DIRECT_ONLY
);
10915 dev_info(&pdev
->dev
, "configure_lan_hmc failed: %d\n", err
);
10917 goto err_configure_lan_hmc
;
10920 /* Disable LLDP for NICs that have firmware versions lower than v4.3.
10921 * Ignore error return codes because if it was already disabled via
10922 * hardware settings this will fail
10924 if (pf
->flags
& I40E_FLAG_STOP_FW_LLDP
) {
10925 dev_info(&pdev
->dev
, "Stopping firmware LLDP agent.\n");
10926 i40e_aq_stop_lldp(hw
, true, NULL
);
10929 i40e_get_mac_addr(hw
, hw
->mac
.addr
);
10930 /* allow a platform config to override the HW addr */
10931 i40e_get_platform_mac_addr(pdev
, pf
);
10932 if (!is_valid_ether_addr(hw
->mac
.addr
)) {
10933 dev_info(&pdev
->dev
, "invalid MAC address %pM\n", hw
->mac
.addr
);
10937 dev_info(&pdev
->dev
, "MAC address: %pM\n", hw
->mac
.addr
);
10938 ether_addr_copy(hw
->mac
.perm_addr
, hw
->mac
.addr
);
10939 i40e_get_port_mac_addr(hw
, hw
->mac
.port_addr
);
10940 if (is_valid_ether_addr(hw
->mac
.port_addr
))
10941 pf
->flags
|= I40E_FLAG_PORT_ID_VALID
;
10943 err
= i40e_get_san_mac_addr(hw
, hw
->mac
.san_addr
);
10945 dev_info(&pdev
->dev
,
10946 "(non-fatal) SAN MAC retrieval failed: %d\n", err
);
10947 if (!is_valid_ether_addr(hw
->mac
.san_addr
)) {
10948 dev_warn(&pdev
->dev
, "invalid SAN MAC address %pM, falling back to LAN MAC\n",
10950 ether_addr_copy(hw
->mac
.san_addr
, hw
->mac
.addr
);
10952 dev_info(&pf
->pdev
->dev
, "SAN MAC: %pM\n", hw
->mac
.san_addr
);
10953 #endif /* I40E_FCOE */
10955 pci_set_drvdata(pdev
, pf
);
10956 pci_save_state(pdev
);
10957 #ifdef CONFIG_I40E_DCB
10958 err
= i40e_init_pf_dcb(pf
);
10960 dev_info(&pdev
->dev
, "DCB init failed %d, disabled\n", err
);
10961 pf
->flags
&= ~(I40E_FLAG_DCB_CAPABLE
& I40E_FLAG_DCB_ENABLED
);
10962 /* Continue without DCB enabled */
10964 #endif /* CONFIG_I40E_DCB */
10966 /* set up periodic task facility */
10967 setup_timer(&pf
->service_timer
, i40e_service_timer
, (unsigned long)pf
);
10968 pf
->service_timer_period
= HZ
;
10970 INIT_WORK(&pf
->service_task
, i40e_service_task
);
10971 clear_bit(__I40E_SERVICE_SCHED
, &pf
->state
);
10972 pf
->flags
|= I40E_FLAG_NEED_LINK_UPDATE
;
10974 /* NVM bit on means WoL disabled for the port */
10975 i40e_read_nvm_word(hw
, I40E_SR_NVM_WAKE_ON_LAN
, &wol_nvm_bits
);
10976 if (BIT (hw
->port
) & wol_nvm_bits
|| hw
->partition_id
!= 1)
10977 pf
->wol_en
= false;
10980 device_set_wakeup_enable(&pf
->pdev
->dev
, pf
->wol_en
);
10982 /* set up the main switch operations */
10983 i40e_determine_queue_usage(pf
);
10984 err
= i40e_init_interrupt_scheme(pf
);
10986 goto err_switch_setup
;
10988 /* The number of VSIs reported by the FW is the minimum guaranteed
10989 * to us; HW supports far more and we share the remaining pool with
10990 * the other PFs. We allocate space for more than the guarantee with
10991 * the understanding that we might not get them all later.
10993 if (pf
->hw
.func_caps
.num_vsis
< I40E_MIN_VSI_ALLOC
)
10994 pf
->num_alloc_vsi
= I40E_MIN_VSI_ALLOC
;
10996 pf
->num_alloc_vsi
= pf
->hw
.func_caps
.num_vsis
;
10998 /* Set up the *vsi struct and our local tracking of the MAIN PF vsi. */
10999 pf
->vsi
= kcalloc(pf
->num_alloc_vsi
, sizeof(struct i40e_vsi
*),
11003 goto err_switch_setup
;
11006 #ifdef CONFIG_PCI_IOV
11007 /* prep for VF support */
11008 if ((pf
->flags
& I40E_FLAG_SRIOV_ENABLED
) &&
11009 (pf
->flags
& I40E_FLAG_MSIX_ENABLED
) &&
11010 !test_bit(__I40E_BAD_EEPROM
, &pf
->state
)) {
11011 if (pci_num_vf(pdev
))
11012 pf
->flags
|= I40E_FLAG_VEB_MODE_ENABLED
;
11015 err
= i40e_setup_pf_switch(pf
, false);
11017 dev_info(&pdev
->dev
, "setup_pf_switch failed: %d\n", err
);
11021 /* Make sure flow control is set according to current settings */
11022 err
= i40e_set_fc(hw
, &set_fc_aq_fail
, true);
11023 if (set_fc_aq_fail
& I40E_SET_FC_AQ_FAIL_GET
)
11024 dev_dbg(&pf
->pdev
->dev
,
11025 "Set fc with err %s aq_err %s on get_phy_cap\n",
11026 i40e_stat_str(hw
, err
),
11027 i40e_aq_str(hw
, hw
->aq
.asq_last_status
));
11028 if (set_fc_aq_fail
& I40E_SET_FC_AQ_FAIL_SET
)
11029 dev_dbg(&pf
->pdev
->dev
,
11030 "Set fc with err %s aq_err %s on set_phy_config\n",
11031 i40e_stat_str(hw
, err
),
11032 i40e_aq_str(hw
, hw
->aq
.asq_last_status
));
11033 if (set_fc_aq_fail
& I40E_SET_FC_AQ_FAIL_UPDATE
)
11034 dev_dbg(&pf
->pdev
->dev
,
11035 "Set fc with err %s aq_err %s on get_link_info\n",
11036 i40e_stat_str(hw
, err
),
11037 i40e_aq_str(hw
, hw
->aq
.asq_last_status
));
11039 /* if FDIR VSI was set up, start it now */
11040 for (i
= 0; i
< pf
->num_alloc_vsi
; i
++) {
11041 if (pf
->vsi
[i
] && pf
->vsi
[i
]->type
== I40E_VSI_FDIR
) {
11042 i40e_vsi_open(pf
->vsi
[i
]);
11047 /* The driver only wants link up/down and module qualification
11048 * reports from firmware. Note the negative logic.
11050 err
= i40e_aq_set_phy_int_mask(&pf
->hw
,
11051 ~(I40E_AQ_EVENT_LINK_UPDOWN
|
11052 I40E_AQ_EVENT_MEDIA_NA
|
11053 I40E_AQ_EVENT_MODULE_QUAL_FAIL
), NULL
);
11055 dev_info(&pf
->pdev
->dev
, "set phy mask fail, err %s aq_err %s\n",
11056 i40e_stat_str(&pf
->hw
, err
),
11057 i40e_aq_str(&pf
->hw
, pf
->hw
.aq
.asq_last_status
));
11059 /* Reconfigure hardware for allowing smaller MSS in the case
11060 * of TSO, so that we avoid the MDD being fired and causing
11061 * a reset in the case of small MSS+TSO.
11063 val
= rd32(hw
, I40E_REG_MSS
);
11064 if ((val
& I40E_REG_MSS_MIN_MASK
) > I40E_64BYTE_MSS
) {
11065 val
&= ~I40E_REG_MSS_MIN_MASK
;
11066 val
|= I40E_64BYTE_MSS
;
11067 wr32(hw
, I40E_REG_MSS
, val
);
11070 if (pf
->flags
& I40E_FLAG_RESTART_AUTONEG
) {
11072 err
= i40e_aq_set_link_restart_an(&pf
->hw
, true, NULL
);
11074 dev_info(&pf
->pdev
->dev
, "link restart failed, err %s aq_err %s\n",
11075 i40e_stat_str(&pf
->hw
, err
),
11076 i40e_aq_str(&pf
->hw
,
11077 pf
->hw
.aq
.asq_last_status
));
11079 /* The main driver is (mostly) up and happy. We need to set this state
11080 * before setting up the misc vector or we get a race and the vector
11081 * ends up disabled forever.
11083 clear_bit(__I40E_DOWN
, &pf
->state
);
11085 /* In case of MSIX we are going to setup the misc vector right here
11086 * to handle admin queue events etc. In case of legacy and MSI
11087 * the misc functionality and queue processing is combined in
11088 * the same vector and that gets setup at open.
11090 if (pf
->flags
& I40E_FLAG_MSIX_ENABLED
) {
11091 err
= i40e_setup_misc_vector(pf
);
11093 dev_info(&pdev
->dev
,
11094 "setup of misc vector failed: %d\n", err
);
11099 #ifdef CONFIG_PCI_IOV
11100 /* prep for VF support */
11101 if ((pf
->flags
& I40E_FLAG_SRIOV_ENABLED
) &&
11102 (pf
->flags
& I40E_FLAG_MSIX_ENABLED
) &&
11103 !test_bit(__I40E_BAD_EEPROM
, &pf
->state
)) {
11104 /* disable link interrupts for VFs */
11105 val
= rd32(hw
, I40E_PFGEN_PORTMDIO_NUM
);
11106 val
&= ~I40E_PFGEN_PORTMDIO_NUM_VFLINK_STAT_ENA_MASK
;
11107 wr32(hw
, I40E_PFGEN_PORTMDIO_NUM
, val
);
11110 if (pci_num_vf(pdev
)) {
11111 dev_info(&pdev
->dev
,
11112 "Active VFs found, allocating resources.\n");
11113 err
= i40e_alloc_vfs(pf
, pci_num_vf(pdev
));
11115 dev_info(&pdev
->dev
,
11116 "Error %d allocating resources for existing VFs\n",
11120 #endif /* CONFIG_PCI_IOV */
11122 if (pf
->flags
& I40E_FLAG_IWARP_ENABLED
) {
11123 pf
->iwarp_base_vector
= i40e_get_lump(pf
, pf
->irq_pile
,
11124 pf
->num_iwarp_msix
,
11125 I40E_IWARP_IRQ_PILE_ID
);
11126 if (pf
->iwarp_base_vector
< 0) {
11127 dev_info(&pdev
->dev
,
11128 "failed to get tracking for %d vectors for IWARP err=%d\n",
11129 pf
->num_iwarp_msix
, pf
->iwarp_base_vector
);
11130 pf
->flags
&= ~I40E_FLAG_IWARP_ENABLED
;
11134 i40e_dbg_pf_init(pf
);
11136 /* tell the firmware that we're starting */
11137 i40e_send_version(pf
);
11139 /* since everything's happy, start the service_task timer */
11140 mod_timer(&pf
->service_timer
,
11141 round_jiffies(jiffies
+ pf
->service_timer_period
));
11143 /* add this PF to client device list and launch a client service task */
11144 err
= i40e_lan_add_device(pf
);
11146 dev_info(&pdev
->dev
, "Failed to add PF to client API service list: %d\n",
11150 /* create FCoE interface */
11151 i40e_fcoe_vsi_setup(pf
);
11154 #define PCI_SPEED_SIZE 8
11155 #define PCI_WIDTH_SIZE 8
11156 /* Devices on the IOSF bus do not have this information
11157 * and will report PCI Gen 1 x 1 by default so don't bother
11160 if (!(pf
->flags
& I40E_FLAG_NO_PCI_LINK_CHECK
)) {
11161 char speed
[PCI_SPEED_SIZE
] = "Unknown";
11162 char width
[PCI_WIDTH_SIZE
] = "Unknown";
11164 /* Get the negotiated link width and speed from PCI config
11167 pcie_capability_read_word(pf
->pdev
, PCI_EXP_LNKSTA
,
11170 i40e_set_pci_config_data(hw
, link_status
);
11172 switch (hw
->bus
.speed
) {
11173 case i40e_bus_speed_8000
:
11174 strncpy(speed
, "8.0", PCI_SPEED_SIZE
); break;
11175 case i40e_bus_speed_5000
:
11176 strncpy(speed
, "5.0", PCI_SPEED_SIZE
); break;
11177 case i40e_bus_speed_2500
:
11178 strncpy(speed
, "2.5", PCI_SPEED_SIZE
); break;
11182 switch (hw
->bus
.width
) {
11183 case i40e_bus_width_pcie_x8
:
11184 strncpy(width
, "8", PCI_WIDTH_SIZE
); break;
11185 case i40e_bus_width_pcie_x4
:
11186 strncpy(width
, "4", PCI_WIDTH_SIZE
); break;
11187 case i40e_bus_width_pcie_x2
:
11188 strncpy(width
, "2", PCI_WIDTH_SIZE
); break;
11189 case i40e_bus_width_pcie_x1
:
11190 strncpy(width
, "1", PCI_WIDTH_SIZE
); break;
11195 dev_info(&pdev
->dev
, "PCI-Express: Speed %sGT/s Width x%s\n",
11198 if (hw
->bus
.width
< i40e_bus_width_pcie_x8
||
11199 hw
->bus
.speed
< i40e_bus_speed_8000
) {
11200 dev_warn(&pdev
->dev
, "PCI-Express bandwidth available for this device may be insufficient for optimal performance.\n");
11201 dev_warn(&pdev
->dev
, "Please move the device to a different PCI-e link with more lanes and/or higher transfer rate.\n");
11205 /* get the requested speeds from the fw */
11206 err
= i40e_aq_get_phy_capabilities(hw
, false, false, &abilities
, NULL
);
11208 dev_dbg(&pf
->pdev
->dev
, "get requested speeds ret = %s last_status = %s\n",
11209 i40e_stat_str(&pf
->hw
, err
),
11210 i40e_aq_str(&pf
->hw
, pf
->hw
.aq
.asq_last_status
));
11211 pf
->hw
.phy
.link_info
.requested_speeds
= abilities
.link_speed
;
11213 /* get the supported phy types from the fw */
11214 err
= i40e_aq_get_phy_capabilities(hw
, false, true, &abilities
, NULL
);
11216 dev_dbg(&pf
->pdev
->dev
, "get supported phy types ret = %s last_status = %s\n",
11217 i40e_stat_str(&pf
->hw
, err
),
11218 i40e_aq_str(&pf
->hw
, pf
->hw
.aq
.asq_last_status
));
11219 pf
->hw
.phy
.phy_types
= le32_to_cpu(abilities
.phy_type
);
11221 /* Add a filter to drop all Flow control frames from any VSI from being
11222 * transmitted. By doing so we stop a malicious VF from sending out
11223 * PAUSE or PFC frames and potentially controlling traffic for other
11225 * The FW can still send Flow control frames if enabled.
11227 i40e_add_filter_to_drop_tx_flow_control_frames(&pf
->hw
,
11228 pf
->main_vsi_seid
);
11230 if ((pf
->hw
.device_id
== I40E_DEV_ID_10G_BASE_T
) ||
11231 (pf
->hw
.device_id
== I40E_DEV_ID_10G_BASE_T4
))
11232 pf
->flags
|= I40E_FLAG_HAVE_10GBASET_PHY
;
11234 /* print a string summarizing features */
11235 i40e_print_features(pf
);
11239 /* Unwind what we've done if something failed in the setup */
11241 set_bit(__I40E_DOWN
, &pf
->state
);
11242 i40e_clear_interrupt_scheme(pf
);
11245 i40e_reset_interrupt_capability(pf
);
11246 del_timer_sync(&pf
->service_timer
);
11248 err_configure_lan_hmc
:
11249 (void)i40e_shutdown_lan_hmc(hw
);
11251 kfree(pf
->qp_pile
);
11255 iounmap(hw
->hw_addr
);
11259 pci_disable_pcie_error_reporting(pdev
);
11260 pci_release_mem_regions(pdev
);
11263 pci_disable_device(pdev
);
11268 * i40e_remove - Device removal routine
11269 * @pdev: PCI device information struct
11271 * i40e_remove is called by the PCI subsystem to alert the driver
11272 * that is should release a PCI device. This could be caused by a
11273 * Hot-Plug event, or because the driver is going to be removed from
11276 static void i40e_remove(struct pci_dev
*pdev
)
11278 struct i40e_pf
*pf
= pci_get_drvdata(pdev
);
11279 struct i40e_hw
*hw
= &pf
->hw
;
11280 i40e_status ret_code
;
11283 i40e_dbg_pf_exit(pf
);
11287 /* Disable RSS in hw */
11288 i40e_write_rx_ctl(hw
, I40E_PFQF_HENA(0), 0);
11289 i40e_write_rx_ctl(hw
, I40E_PFQF_HENA(1), 0);
11291 /* no more scheduling of any task */
11292 set_bit(__I40E_SUSPENDED
, &pf
->state
);
11293 set_bit(__I40E_DOWN
, &pf
->state
);
11294 if (pf
->service_timer
.data
)
11295 del_timer_sync(&pf
->service_timer
);
11296 if (pf
->service_task
.func
)
11297 cancel_work_sync(&pf
->service_task
);
11299 if (pf
->flags
& I40E_FLAG_SRIOV_ENABLED
) {
11301 pf
->flags
&= ~I40E_FLAG_SRIOV_ENABLED
;
11304 i40e_fdir_teardown(pf
);
11306 /* If there is a switch structure or any orphans, remove them.
11307 * This will leave only the PF's VSI remaining.
11309 for (i
= 0; i
< I40E_MAX_VEB
; i
++) {
11313 if (pf
->veb
[i
]->uplink_seid
== pf
->mac_seid
||
11314 pf
->veb
[i
]->uplink_seid
== 0)
11315 i40e_switch_branch_release(pf
->veb
[i
]);
11318 /* Now we can shutdown the PF's VSI, just before we kill
11321 if (pf
->vsi
[pf
->lan_vsi
])
11322 i40e_vsi_release(pf
->vsi
[pf
->lan_vsi
]);
11324 /* remove attached clients */
11325 ret_code
= i40e_lan_del_device(pf
);
11327 dev_warn(&pdev
->dev
, "Failed to delete client device: %d\n",
11331 /* shutdown and destroy the HMC */
11332 if (hw
->hmc
.hmc_obj
) {
11333 ret_code
= i40e_shutdown_lan_hmc(hw
);
11335 dev_warn(&pdev
->dev
,
11336 "Failed to destroy the HMC resources: %d\n",
11340 /* shutdown the adminq */
11341 ret_code
= i40e_shutdown_adminq(hw
);
11343 dev_warn(&pdev
->dev
,
11344 "Failed to destroy the Admin Queue resources: %d\n",
11347 /* destroy the locks only once, here */
11348 mutex_destroy(&hw
->aq
.arq_mutex
);
11349 mutex_destroy(&hw
->aq
.asq_mutex
);
11351 /* Clear all dynamic memory lists of rings, q_vectors, and VSIs */
11352 i40e_clear_interrupt_scheme(pf
);
11353 for (i
= 0; i
< pf
->num_alloc_vsi
; i
++) {
11355 i40e_vsi_clear_rings(pf
->vsi
[i
]);
11356 i40e_vsi_clear(pf
->vsi
[i
]);
11361 for (i
= 0; i
< I40E_MAX_VEB
; i
++) {
11366 kfree(pf
->qp_pile
);
11369 iounmap(hw
->hw_addr
);
11371 pci_release_mem_regions(pdev
);
11373 pci_disable_pcie_error_reporting(pdev
);
11374 pci_disable_device(pdev
);
11378 * i40e_pci_error_detected - warning that something funky happened in PCI land
11379 * @pdev: PCI device information struct
11381 * Called to warn that something happened and the error handling steps
11382 * are in progress. Allows the driver to quiesce things, be ready for
11385 static pci_ers_result_t
i40e_pci_error_detected(struct pci_dev
*pdev
,
11386 enum pci_channel_state error
)
11388 struct i40e_pf
*pf
= pci_get_drvdata(pdev
);
11390 dev_info(&pdev
->dev
, "%s: error %d\n", __func__
, error
);
11392 /* shutdown all operations */
11393 if (!test_bit(__I40E_SUSPENDED
, &pf
->state
)) {
11395 i40e_prep_for_reset(pf
);
11399 /* Request a slot reset */
11400 return PCI_ERS_RESULT_NEED_RESET
;
11404 * i40e_pci_error_slot_reset - a PCI slot reset just happened
11405 * @pdev: PCI device information struct
11407 * Called to find if the driver can work with the device now that
11408 * the pci slot has been reset. If a basic connection seems good
11409 * (registers are readable and have sane content) then return a
11410 * happy little PCI_ERS_RESULT_xxx.
11412 static pci_ers_result_t
i40e_pci_error_slot_reset(struct pci_dev
*pdev
)
11414 struct i40e_pf
*pf
= pci_get_drvdata(pdev
);
11415 pci_ers_result_t result
;
11419 dev_dbg(&pdev
->dev
, "%s\n", __func__
);
11420 if (pci_enable_device_mem(pdev
)) {
11421 dev_info(&pdev
->dev
,
11422 "Cannot re-enable PCI device after reset.\n");
11423 result
= PCI_ERS_RESULT_DISCONNECT
;
11425 pci_set_master(pdev
);
11426 pci_restore_state(pdev
);
11427 pci_save_state(pdev
);
11428 pci_wake_from_d3(pdev
, false);
11430 reg
= rd32(&pf
->hw
, I40E_GLGEN_RTRIG
);
11432 result
= PCI_ERS_RESULT_RECOVERED
;
11434 result
= PCI_ERS_RESULT_DISCONNECT
;
11437 err
= pci_cleanup_aer_uncorrect_error_status(pdev
);
11439 dev_info(&pdev
->dev
,
11440 "pci_cleanup_aer_uncorrect_error_status failed 0x%0x\n",
11442 /* non-fatal, continue */
11449 * i40e_pci_error_resume - restart operations after PCI error recovery
11450 * @pdev: PCI device information struct
11452 * Called to allow the driver to bring things back up after PCI error
11453 * and/or reset recovery has finished.
11455 static void i40e_pci_error_resume(struct pci_dev
*pdev
)
11457 struct i40e_pf
*pf
= pci_get_drvdata(pdev
);
11459 dev_dbg(&pdev
->dev
, "%s\n", __func__
);
11460 if (test_bit(__I40E_SUSPENDED
, &pf
->state
))
11464 i40e_handle_reset_warning(pf
);
11469 * i40e_shutdown - PCI callback for shutting down
11470 * @pdev: PCI device information struct
11472 static void i40e_shutdown(struct pci_dev
*pdev
)
11474 struct i40e_pf
*pf
= pci_get_drvdata(pdev
);
11475 struct i40e_hw
*hw
= &pf
->hw
;
11477 set_bit(__I40E_SUSPENDED
, &pf
->state
);
11478 set_bit(__I40E_DOWN
, &pf
->state
);
11480 i40e_prep_for_reset(pf
);
11483 wr32(hw
, I40E_PFPM_APM
, (pf
->wol_en
? I40E_PFPM_APM_APME_MASK
: 0));
11484 wr32(hw
, I40E_PFPM_WUFC
, (pf
->wol_en
? I40E_PFPM_WUFC_MAG_MASK
: 0));
11486 del_timer_sync(&pf
->service_timer
);
11487 cancel_work_sync(&pf
->service_task
);
11488 i40e_fdir_teardown(pf
);
11491 i40e_prep_for_reset(pf
);
11494 wr32(hw
, I40E_PFPM_APM
,
11495 (pf
->wol_en
? I40E_PFPM_APM_APME_MASK
: 0));
11496 wr32(hw
, I40E_PFPM_WUFC
,
11497 (pf
->wol_en
? I40E_PFPM_WUFC_MAG_MASK
: 0));
11499 i40e_clear_interrupt_scheme(pf
);
11501 if (system_state
== SYSTEM_POWER_OFF
) {
11502 pci_wake_from_d3(pdev
, pf
->wol_en
);
11503 pci_set_power_state(pdev
, PCI_D3hot
);
11509 * i40e_suspend - PCI callback for moving to D3
11510 * @pdev: PCI device information struct
11512 static int i40e_suspend(struct pci_dev
*pdev
, pm_message_t state
)
11514 struct i40e_pf
*pf
= pci_get_drvdata(pdev
);
11515 struct i40e_hw
*hw
= &pf
->hw
;
11518 set_bit(__I40E_SUSPENDED
, &pf
->state
);
11519 set_bit(__I40E_DOWN
, &pf
->state
);
11522 i40e_prep_for_reset(pf
);
11525 wr32(hw
, I40E_PFPM_APM
, (pf
->wol_en
? I40E_PFPM_APM_APME_MASK
: 0));
11526 wr32(hw
, I40E_PFPM_WUFC
, (pf
->wol_en
? I40E_PFPM_WUFC_MAG_MASK
: 0));
11528 i40e_stop_misc_vector(pf
);
11530 retval
= pci_save_state(pdev
);
11534 pci_wake_from_d3(pdev
, pf
->wol_en
);
11535 pci_set_power_state(pdev
, PCI_D3hot
);
11541 * i40e_resume - PCI callback for waking up from D3
11542 * @pdev: PCI device information struct
11544 static int i40e_resume(struct pci_dev
*pdev
)
11546 struct i40e_pf
*pf
= pci_get_drvdata(pdev
);
11549 pci_set_power_state(pdev
, PCI_D0
);
11550 pci_restore_state(pdev
);
11551 /* pci_restore_state() clears dev->state_saves, so
11552 * call pci_save_state() again to restore it.
11554 pci_save_state(pdev
);
11556 err
= pci_enable_device_mem(pdev
);
11558 dev_err(&pdev
->dev
, "Cannot enable PCI device from suspend\n");
11561 pci_set_master(pdev
);
11563 /* no wakeup events while running */
11564 pci_wake_from_d3(pdev
, false);
11566 /* handling the reset will rebuild the device state */
11567 if (test_and_clear_bit(__I40E_SUSPENDED
, &pf
->state
)) {
11568 clear_bit(__I40E_DOWN
, &pf
->state
);
11570 i40e_reset_and_rebuild(pf
, false);
11578 static const struct pci_error_handlers i40e_err_handler
= {
11579 .error_detected
= i40e_pci_error_detected
,
11580 .slot_reset
= i40e_pci_error_slot_reset
,
11581 .resume
= i40e_pci_error_resume
,
11584 static struct pci_driver i40e_driver
= {
11585 .name
= i40e_driver_name
,
11586 .id_table
= i40e_pci_tbl
,
11587 .probe
= i40e_probe
,
11588 .remove
= i40e_remove
,
11590 .suspend
= i40e_suspend
,
11591 .resume
= i40e_resume
,
11593 .shutdown
= i40e_shutdown
,
11594 .err_handler
= &i40e_err_handler
,
11595 .sriov_configure
= i40e_pci_sriov_configure
,
11599 * i40e_init_module - Driver registration routine
11601 * i40e_init_module is the first routine called when the driver is
11602 * loaded. All it does is register with the PCI subsystem.
11604 static int __init
i40e_init_module(void)
11606 pr_info("%s: %s - version %s\n", i40e_driver_name
,
11607 i40e_driver_string
, i40e_driver_version_str
);
11608 pr_info("%s: %s\n", i40e_driver_name
, i40e_copyright
);
11610 /* we will see if single thread per module is enough for now,
11611 * it can't be any worse than using the system workqueue which
11612 * was already single threaded
11614 i40e_wq
= alloc_workqueue("%s", WQ_UNBOUND
| WQ_MEM_RECLAIM
, 1,
11617 pr_err("%s: Failed to create workqueue\n", i40e_driver_name
);
11622 return pci_register_driver(&i40e_driver
);
11624 module_init(i40e_init_module
);
11627 * i40e_exit_module - Driver exit cleanup routine
11629 * i40e_exit_module is called just before the driver is removed
11632 static void __exit
i40e_exit_module(void)
11634 pci_unregister_driver(&i40e_driver
);
11635 destroy_workqueue(i40e_wq
);
11638 module_exit(i40e_exit_module
);