1 /*******************************************************************************
3 * Intel Ethernet Controller XL710 Family Linux Driver
4 * Copyright(c) 2013 - 2015 Intel Corporation.
6 * This program is free software; you can redistribute it and/or modify it
7 * under the terms and conditions of the GNU General Public License,
8 * version 2, as published by the Free Software Foundation.
10 * This program is distributed in the hope it will be useful, but WITHOUT
11 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
12 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
15 * You should have received a copy of the GNU General Public License along
16 * with this program. If not, see <http://www.gnu.org/licenses/>.
18 * The full GNU General Public License is included in this distribution in
19 * the file called "COPYING".
21 * Contact Information:
22 * e1000-devel Mailing List <e1000-devel@lists.sourceforge.net>
23 * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
25 ******************************************************************************/
29 #include "i40e_diag.h"
30 #ifdef CONFIG_I40E_VXLAN
31 #include <net/vxlan.h>
34 const char i40e_driver_name
[] = "i40e";
35 static const char i40e_driver_string
[] =
36 "Intel(R) Ethernet Connection XL710 Network Driver";
40 #define DRV_VERSION_MAJOR 1
41 #define DRV_VERSION_MINOR 3
42 #define DRV_VERSION_BUILD 21
43 #define DRV_VERSION __stringify(DRV_VERSION_MAJOR) "." \
44 __stringify(DRV_VERSION_MINOR) "." \
45 __stringify(DRV_VERSION_BUILD) DRV_KERN
46 const char i40e_driver_version_str
[] = DRV_VERSION
;
47 static const char i40e_copyright
[] = "Copyright (c) 2013 - 2014 Intel Corporation.";
49 /* a bit of forward declarations */
50 static void i40e_vsi_reinit_locked(struct i40e_vsi
*vsi
);
51 static void i40e_handle_reset_warning(struct i40e_pf
*pf
);
52 static int i40e_add_vsi(struct i40e_vsi
*vsi
);
53 static int i40e_add_veb(struct i40e_veb
*veb
, struct i40e_vsi
*vsi
);
54 static int i40e_setup_pf_switch(struct i40e_pf
*pf
, bool reinit
);
55 static int i40e_setup_misc_vector(struct i40e_pf
*pf
);
56 static void i40e_determine_queue_usage(struct i40e_pf
*pf
);
57 static int i40e_setup_pf_filter_control(struct i40e_pf
*pf
);
58 static void i40e_fdir_sb_setup(struct i40e_pf
*pf
);
59 static int i40e_veb_get_bw_info(struct i40e_veb
*veb
);
61 /* i40e_pci_tbl - PCI Device ID Table
63 * Last entry must be all 0s
65 * { Vendor ID, Device ID, SubVendor ID, SubDevice ID,
66 * Class, Class Mask, private data (not used) }
68 static const struct pci_device_id i40e_pci_tbl
[] = {
69 {PCI_VDEVICE(INTEL
, I40E_DEV_ID_SFP_XL710
), 0},
70 {PCI_VDEVICE(INTEL
, I40E_DEV_ID_QEMU
), 0},
71 {PCI_VDEVICE(INTEL
, I40E_DEV_ID_KX_A
), 0},
72 {PCI_VDEVICE(INTEL
, I40E_DEV_ID_KX_B
), 0},
73 {PCI_VDEVICE(INTEL
, I40E_DEV_ID_KX_C
), 0},
74 {PCI_VDEVICE(INTEL
, I40E_DEV_ID_QSFP_A
), 0},
75 {PCI_VDEVICE(INTEL
, I40E_DEV_ID_QSFP_B
), 0},
76 {PCI_VDEVICE(INTEL
, I40E_DEV_ID_QSFP_C
), 0},
77 {PCI_VDEVICE(INTEL
, I40E_DEV_ID_10G_BASE_T
), 0},
78 {PCI_VDEVICE(INTEL
, I40E_DEV_ID_20G_KR2
), 0},
79 {PCI_VDEVICE(INTEL
, I40E_DEV_ID_SFP_X722
), 0},
80 {PCI_VDEVICE(INTEL
, I40E_DEV_ID_1G_BASE_T_X722
), 0},
81 {PCI_VDEVICE(INTEL
, I40E_DEV_ID_10G_BASE_T_X722
), 0},
82 {PCI_VDEVICE(INTEL
, I40E_DEV_ID_20G_KR2
), 0},
83 {PCI_VDEVICE(INTEL
, I40E_DEV_ID_20G_KR2_A
), 0},
84 /* required last entry */
87 MODULE_DEVICE_TABLE(pci
, i40e_pci_tbl
);
89 #define I40E_MAX_VF_COUNT 128
90 static int debug
= -1;
91 module_param(debug
, int, 0);
92 MODULE_PARM_DESC(debug
, "Debug level (0=none,...,16=all)");
94 MODULE_AUTHOR("Intel Corporation, <e1000-devel@lists.sourceforge.net>");
95 MODULE_DESCRIPTION("Intel(R) Ethernet Connection XL710 Network Driver");
96 MODULE_LICENSE("GPL");
97 MODULE_VERSION(DRV_VERSION
);
100 * i40e_allocate_dma_mem_d - OS specific memory alloc for shared code
101 * @hw: pointer to the HW structure
102 * @mem: ptr to mem struct to fill out
103 * @size: size of memory requested
104 * @alignment: what to align the allocation to
106 int i40e_allocate_dma_mem_d(struct i40e_hw
*hw
, struct i40e_dma_mem
*mem
,
107 u64 size
, u32 alignment
)
109 struct i40e_pf
*pf
= (struct i40e_pf
*)hw
->back
;
111 mem
->size
= ALIGN(size
, alignment
);
112 mem
->va
= dma_zalloc_coherent(&pf
->pdev
->dev
, mem
->size
,
113 &mem
->pa
, GFP_KERNEL
);
121 * i40e_free_dma_mem_d - OS specific memory free for shared code
122 * @hw: pointer to the HW structure
123 * @mem: ptr to mem struct to free
125 int i40e_free_dma_mem_d(struct i40e_hw
*hw
, struct i40e_dma_mem
*mem
)
127 struct i40e_pf
*pf
= (struct i40e_pf
*)hw
->back
;
129 dma_free_coherent(&pf
->pdev
->dev
, mem
->size
, mem
->va
, mem
->pa
);
138 * i40e_allocate_virt_mem_d - OS specific memory alloc for shared code
139 * @hw: pointer to the HW structure
140 * @mem: ptr to mem struct to fill out
141 * @size: size of memory requested
143 int i40e_allocate_virt_mem_d(struct i40e_hw
*hw
, struct i40e_virt_mem
*mem
,
147 mem
->va
= kzalloc(size
, GFP_KERNEL
);
156 * i40e_free_virt_mem_d - OS specific memory free for shared code
157 * @hw: pointer to the HW structure
158 * @mem: ptr to mem struct to free
160 int i40e_free_virt_mem_d(struct i40e_hw
*hw
, struct i40e_virt_mem
*mem
)
162 /* it's ok to kfree a NULL pointer */
171 * i40e_get_lump - find a lump of free generic resource
172 * @pf: board private structure
173 * @pile: the pile of resource to search
174 * @needed: the number of items needed
175 * @id: an owner id to stick on the items assigned
177 * Returns the base item index of the lump, or negative for error
179 * The search_hint trick and lack of advanced fit-finding only work
180 * because we're highly likely to have all the same size lump requests.
181 * Linear search time and any fragmentation should be minimal.
183 static int i40e_get_lump(struct i40e_pf
*pf
, struct i40e_lump_tracking
*pile
,
189 if (!pile
|| needed
== 0 || id
>= I40E_PILE_VALID_BIT
) {
190 dev_info(&pf
->pdev
->dev
,
191 "param err: pile=%p needed=%d id=0x%04x\n",
196 /* start the linear search with an imperfect hint */
197 i
= pile
->search_hint
;
198 while (i
< pile
->num_entries
) {
199 /* skip already allocated entries */
200 if (pile
->list
[i
] & I40E_PILE_VALID_BIT
) {
205 /* do we have enough in this lump? */
206 for (j
= 0; (j
< needed
) && ((i
+j
) < pile
->num_entries
); j
++) {
207 if (pile
->list
[i
+j
] & I40E_PILE_VALID_BIT
)
212 /* there was enough, so assign it to the requestor */
213 for (j
= 0; j
< needed
; j
++)
214 pile
->list
[i
+j
] = id
| I40E_PILE_VALID_BIT
;
216 pile
->search_hint
= i
+ j
;
219 /* not enough, so skip over it and continue looking */
228 * i40e_put_lump - return a lump of generic resource
229 * @pile: the pile of resource to search
230 * @index: the base item index
231 * @id: the owner id of the items assigned
233 * Returns the count of items in the lump
235 static int i40e_put_lump(struct i40e_lump_tracking
*pile
, u16 index
, u16 id
)
237 int valid_id
= (id
| I40E_PILE_VALID_BIT
);
241 if (!pile
|| index
>= pile
->num_entries
)
245 i
< pile
->num_entries
&& pile
->list
[i
] == valid_id
;
251 if (count
&& index
< pile
->search_hint
)
252 pile
->search_hint
= index
;
258 * i40e_find_vsi_from_id - searches for the vsi with the given id
259 * @pf - the pf structure to search for the vsi
260 * @id - id of the vsi it is searching for
262 struct i40e_vsi
*i40e_find_vsi_from_id(struct i40e_pf
*pf
, u16 id
)
266 for (i
= 0; i
< pf
->num_alloc_vsi
; i
++)
267 if (pf
->vsi
[i
] && (pf
->vsi
[i
]->id
== id
))
274 * i40e_service_event_schedule - Schedule the service task to wake up
275 * @pf: board private structure
277 * If not already scheduled, this puts the task into the work queue
279 static void i40e_service_event_schedule(struct i40e_pf
*pf
)
281 if (!test_bit(__I40E_DOWN
, &pf
->state
) &&
282 !test_bit(__I40E_RESET_RECOVERY_PENDING
, &pf
->state
) &&
283 !test_and_set_bit(__I40E_SERVICE_SCHED
, &pf
->state
))
284 schedule_work(&pf
->service_task
);
288 * i40e_tx_timeout - Respond to a Tx Hang
289 * @netdev: network interface device structure
291 * If any port has noticed a Tx timeout, it is likely that the whole
292 * device is munged, not just the one netdev port, so go for the full
296 void i40e_tx_timeout(struct net_device
*netdev
)
298 static void i40e_tx_timeout(struct net_device
*netdev
)
301 struct i40e_netdev_priv
*np
= netdev_priv(netdev
);
302 struct i40e_vsi
*vsi
= np
->vsi
;
303 struct i40e_pf
*pf
= vsi
->back
;
304 struct i40e_ring
*tx_ring
= NULL
;
305 unsigned int i
, hung_queue
= 0;
308 pf
->tx_timeout_count
++;
310 /* find the stopped queue the same way the stack does */
311 for (i
= 0; i
< netdev
->num_tx_queues
; i
++) {
312 struct netdev_queue
*q
;
313 unsigned long trans_start
;
315 q
= netdev_get_tx_queue(netdev
, i
);
316 trans_start
= q
->trans_start
? : netdev
->trans_start
;
317 if (netif_xmit_stopped(q
) &&
319 (trans_start
+ netdev
->watchdog_timeo
))) {
325 if (i
== netdev
->num_tx_queues
) {
326 netdev_info(netdev
, "tx_timeout: no netdev hung queue found\n");
328 /* now that we have an index, find the tx_ring struct */
329 for (i
= 0; i
< vsi
->num_queue_pairs
; i
++) {
330 if (vsi
->tx_rings
[i
] && vsi
->tx_rings
[i
]->desc
) {
332 vsi
->tx_rings
[i
]->queue_index
) {
333 tx_ring
= vsi
->tx_rings
[i
];
340 if (time_after(jiffies
, (pf
->tx_timeout_last_recovery
+ HZ
*20)))
341 pf
->tx_timeout_recovery_level
= 1; /* reset after some time */
342 else if (time_before(jiffies
,
343 (pf
->tx_timeout_last_recovery
+ netdev
->watchdog_timeo
)))
344 return; /* don't do any new action before the next timeout */
347 head
= i40e_get_head(tx_ring
);
348 /* Read interrupt register */
349 if (pf
->flags
& I40E_FLAG_MSIX_ENABLED
)
351 I40E_PFINT_DYN_CTLN(tx_ring
->q_vector
->v_idx
+
352 tx_ring
->vsi
->base_vector
- 1));
354 val
= rd32(&pf
->hw
, I40E_PFINT_DYN_CTL0
);
356 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",
357 vsi
->seid
, hung_queue
, tx_ring
->next_to_clean
,
358 head
, tx_ring
->next_to_use
,
359 readl(tx_ring
->tail
), val
);
362 pf
->tx_timeout_last_recovery
= jiffies
;
363 netdev_info(netdev
, "tx_timeout recovery level %d, hung_queue %d\n",
364 pf
->tx_timeout_recovery_level
, hung_queue
);
366 switch (pf
->tx_timeout_recovery_level
) {
368 set_bit(__I40E_PF_RESET_REQUESTED
, &pf
->state
);
371 set_bit(__I40E_CORE_RESET_REQUESTED
, &pf
->state
);
374 set_bit(__I40E_GLOBAL_RESET_REQUESTED
, &pf
->state
);
377 netdev_err(netdev
, "tx_timeout recovery unsuccessful\n");
381 i40e_service_event_schedule(pf
);
382 pf
->tx_timeout_recovery_level
++;
386 * i40e_release_rx_desc - Store the new tail and head values
387 * @rx_ring: ring to bump
388 * @val: new head index
390 static inline void i40e_release_rx_desc(struct i40e_ring
*rx_ring
, u32 val
)
392 rx_ring
->next_to_use
= val
;
394 /* Force memory writes to complete before letting h/w
395 * know there are new descriptors to fetch. (Only
396 * applicable for weak-ordered memory model archs,
400 writel(val
, rx_ring
->tail
);
404 * i40e_get_vsi_stats_struct - Get System Network Statistics
405 * @vsi: the VSI we care about
407 * Returns the address of the device statistics structure.
408 * The statistics are actually updated from the service task.
410 struct rtnl_link_stats64
*i40e_get_vsi_stats_struct(struct i40e_vsi
*vsi
)
412 return &vsi
->net_stats
;
416 * i40e_get_netdev_stats_struct - Get statistics for netdev interface
417 * @netdev: network interface device structure
419 * Returns the address of the device statistics structure.
420 * The statistics are actually updated from the service task.
423 struct rtnl_link_stats64
*i40e_get_netdev_stats_struct(
424 struct net_device
*netdev
,
425 struct rtnl_link_stats64
*stats
)
427 static struct rtnl_link_stats64
*i40e_get_netdev_stats_struct(
428 struct net_device
*netdev
,
429 struct rtnl_link_stats64
*stats
)
432 struct i40e_netdev_priv
*np
= netdev_priv(netdev
);
433 struct i40e_ring
*tx_ring
, *rx_ring
;
434 struct i40e_vsi
*vsi
= np
->vsi
;
435 struct rtnl_link_stats64
*vsi_stats
= i40e_get_vsi_stats_struct(vsi
);
438 if (test_bit(__I40E_DOWN
, &vsi
->state
))
445 for (i
= 0; i
< vsi
->num_queue_pairs
; i
++) {
449 tx_ring
= ACCESS_ONCE(vsi
->tx_rings
[i
]);
454 start
= u64_stats_fetch_begin_irq(&tx_ring
->syncp
);
455 packets
= tx_ring
->stats
.packets
;
456 bytes
= tx_ring
->stats
.bytes
;
457 } while (u64_stats_fetch_retry_irq(&tx_ring
->syncp
, start
));
459 stats
->tx_packets
+= packets
;
460 stats
->tx_bytes
+= bytes
;
461 rx_ring
= &tx_ring
[1];
464 start
= u64_stats_fetch_begin_irq(&rx_ring
->syncp
);
465 packets
= rx_ring
->stats
.packets
;
466 bytes
= rx_ring
->stats
.bytes
;
467 } while (u64_stats_fetch_retry_irq(&rx_ring
->syncp
, start
));
469 stats
->rx_packets
+= packets
;
470 stats
->rx_bytes
+= bytes
;
474 /* following stats updated by i40e_watchdog_subtask() */
475 stats
->multicast
= vsi_stats
->multicast
;
476 stats
->tx_errors
= vsi_stats
->tx_errors
;
477 stats
->tx_dropped
= vsi_stats
->tx_dropped
;
478 stats
->rx_errors
= vsi_stats
->rx_errors
;
479 stats
->rx_dropped
= vsi_stats
->rx_dropped
;
480 stats
->rx_crc_errors
= vsi_stats
->rx_crc_errors
;
481 stats
->rx_length_errors
= vsi_stats
->rx_length_errors
;
487 * i40e_vsi_reset_stats - Resets all stats of the given vsi
488 * @vsi: the VSI to have its stats reset
490 void i40e_vsi_reset_stats(struct i40e_vsi
*vsi
)
492 struct rtnl_link_stats64
*ns
;
498 ns
= i40e_get_vsi_stats_struct(vsi
);
499 memset(ns
, 0, sizeof(*ns
));
500 memset(&vsi
->net_stats_offsets
, 0, sizeof(vsi
->net_stats_offsets
));
501 memset(&vsi
->eth_stats
, 0, sizeof(vsi
->eth_stats
));
502 memset(&vsi
->eth_stats_offsets
, 0, sizeof(vsi
->eth_stats_offsets
));
503 if (vsi
->rx_rings
&& vsi
->rx_rings
[0]) {
504 for (i
= 0; i
< vsi
->num_queue_pairs
; i
++) {
505 memset(&vsi
->rx_rings
[i
]->stats
, 0 ,
506 sizeof(vsi
->rx_rings
[i
]->stats
));
507 memset(&vsi
->rx_rings
[i
]->rx_stats
, 0 ,
508 sizeof(vsi
->rx_rings
[i
]->rx_stats
));
509 memset(&vsi
->tx_rings
[i
]->stats
, 0 ,
510 sizeof(vsi
->tx_rings
[i
]->stats
));
511 memset(&vsi
->tx_rings
[i
]->tx_stats
, 0,
512 sizeof(vsi
->tx_rings
[i
]->tx_stats
));
515 vsi
->stat_offsets_loaded
= false;
519 * i40e_pf_reset_stats - Reset all of the stats for the given PF
520 * @pf: the PF to be reset
522 void i40e_pf_reset_stats(struct i40e_pf
*pf
)
526 memset(&pf
->stats
, 0, sizeof(pf
->stats
));
527 memset(&pf
->stats_offsets
, 0, sizeof(pf
->stats_offsets
));
528 pf
->stat_offsets_loaded
= false;
530 for (i
= 0; i
< I40E_MAX_VEB
; i
++) {
532 memset(&pf
->veb
[i
]->stats
, 0,
533 sizeof(pf
->veb
[i
]->stats
));
534 memset(&pf
->veb
[i
]->stats_offsets
, 0,
535 sizeof(pf
->veb
[i
]->stats_offsets
));
536 pf
->veb
[i
]->stat_offsets_loaded
= false;
542 * i40e_stat_update48 - read and update a 48 bit stat from the chip
543 * @hw: ptr to the hardware info
544 * @hireg: the high 32 bit reg to read
545 * @loreg: the low 32 bit reg to read
546 * @offset_loaded: has the initial offset been loaded yet
547 * @offset: ptr to current offset value
548 * @stat: ptr to the stat
550 * Since the device stats are not reset at PFReset, they likely will not
551 * be zeroed when the driver starts. We'll save the first values read
552 * and use them as offsets to be subtracted from the raw values in order
553 * to report stats that count from zero. In the process, we also manage
554 * the potential roll-over.
556 static void i40e_stat_update48(struct i40e_hw
*hw
, u32 hireg
, u32 loreg
,
557 bool offset_loaded
, u64
*offset
, u64
*stat
)
561 if (hw
->device_id
== I40E_DEV_ID_QEMU
) {
562 new_data
= rd32(hw
, loreg
);
563 new_data
|= ((u64
)(rd32(hw
, hireg
) & 0xFFFF)) << 32;
565 new_data
= rd64(hw
, loreg
);
569 if (likely(new_data
>= *offset
))
570 *stat
= new_data
- *offset
;
572 *stat
= (new_data
+ BIT_ULL(48)) - *offset
;
573 *stat
&= 0xFFFFFFFFFFFFULL
;
577 * i40e_stat_update32 - read and update a 32 bit stat from the chip
578 * @hw: ptr to the hardware info
579 * @reg: the hw reg to read
580 * @offset_loaded: has the initial offset been loaded yet
581 * @offset: ptr to current offset value
582 * @stat: ptr to the stat
584 static void i40e_stat_update32(struct i40e_hw
*hw
, u32 reg
,
585 bool offset_loaded
, u64
*offset
, u64
*stat
)
589 new_data
= rd32(hw
, reg
);
592 if (likely(new_data
>= *offset
))
593 *stat
= (u32
)(new_data
- *offset
);
595 *stat
= (u32
)((new_data
+ BIT_ULL(32)) - *offset
);
599 * i40e_update_eth_stats - Update VSI-specific ethernet statistics counters.
600 * @vsi: the VSI to be updated
602 void i40e_update_eth_stats(struct i40e_vsi
*vsi
)
604 int stat_idx
= le16_to_cpu(vsi
->info
.stat_counter_idx
);
605 struct i40e_pf
*pf
= vsi
->back
;
606 struct i40e_hw
*hw
= &pf
->hw
;
607 struct i40e_eth_stats
*oes
;
608 struct i40e_eth_stats
*es
; /* device's eth stats */
610 es
= &vsi
->eth_stats
;
611 oes
= &vsi
->eth_stats_offsets
;
613 /* Gather up the stats that the hw collects */
614 i40e_stat_update32(hw
, I40E_GLV_TEPC(stat_idx
),
615 vsi
->stat_offsets_loaded
,
616 &oes
->tx_errors
, &es
->tx_errors
);
617 i40e_stat_update32(hw
, I40E_GLV_RDPC(stat_idx
),
618 vsi
->stat_offsets_loaded
,
619 &oes
->rx_discards
, &es
->rx_discards
);
620 i40e_stat_update32(hw
, I40E_GLV_RUPP(stat_idx
),
621 vsi
->stat_offsets_loaded
,
622 &oes
->rx_unknown_protocol
, &es
->rx_unknown_protocol
);
623 i40e_stat_update32(hw
, I40E_GLV_TEPC(stat_idx
),
624 vsi
->stat_offsets_loaded
,
625 &oes
->tx_errors
, &es
->tx_errors
);
627 i40e_stat_update48(hw
, I40E_GLV_GORCH(stat_idx
),
628 I40E_GLV_GORCL(stat_idx
),
629 vsi
->stat_offsets_loaded
,
630 &oes
->rx_bytes
, &es
->rx_bytes
);
631 i40e_stat_update48(hw
, I40E_GLV_UPRCH(stat_idx
),
632 I40E_GLV_UPRCL(stat_idx
),
633 vsi
->stat_offsets_loaded
,
634 &oes
->rx_unicast
, &es
->rx_unicast
);
635 i40e_stat_update48(hw
, I40E_GLV_MPRCH(stat_idx
),
636 I40E_GLV_MPRCL(stat_idx
),
637 vsi
->stat_offsets_loaded
,
638 &oes
->rx_multicast
, &es
->rx_multicast
);
639 i40e_stat_update48(hw
, I40E_GLV_BPRCH(stat_idx
),
640 I40E_GLV_BPRCL(stat_idx
),
641 vsi
->stat_offsets_loaded
,
642 &oes
->rx_broadcast
, &es
->rx_broadcast
);
644 i40e_stat_update48(hw
, I40E_GLV_GOTCH(stat_idx
),
645 I40E_GLV_GOTCL(stat_idx
),
646 vsi
->stat_offsets_loaded
,
647 &oes
->tx_bytes
, &es
->tx_bytes
);
648 i40e_stat_update48(hw
, I40E_GLV_UPTCH(stat_idx
),
649 I40E_GLV_UPTCL(stat_idx
),
650 vsi
->stat_offsets_loaded
,
651 &oes
->tx_unicast
, &es
->tx_unicast
);
652 i40e_stat_update48(hw
, I40E_GLV_MPTCH(stat_idx
),
653 I40E_GLV_MPTCL(stat_idx
),
654 vsi
->stat_offsets_loaded
,
655 &oes
->tx_multicast
, &es
->tx_multicast
);
656 i40e_stat_update48(hw
, I40E_GLV_BPTCH(stat_idx
),
657 I40E_GLV_BPTCL(stat_idx
),
658 vsi
->stat_offsets_loaded
,
659 &oes
->tx_broadcast
, &es
->tx_broadcast
);
660 vsi
->stat_offsets_loaded
= true;
664 * i40e_update_veb_stats - Update Switch component statistics
665 * @veb: the VEB being updated
667 static void i40e_update_veb_stats(struct i40e_veb
*veb
)
669 struct i40e_pf
*pf
= veb
->pf
;
670 struct i40e_hw
*hw
= &pf
->hw
;
671 struct i40e_eth_stats
*oes
;
672 struct i40e_eth_stats
*es
; /* device's eth stats */
673 struct i40e_veb_tc_stats
*veb_oes
;
674 struct i40e_veb_tc_stats
*veb_es
;
677 idx
= veb
->stats_idx
;
679 oes
= &veb
->stats_offsets
;
680 veb_es
= &veb
->tc_stats
;
681 veb_oes
= &veb
->tc_stats_offsets
;
683 /* Gather up the stats that the hw collects */
684 i40e_stat_update32(hw
, I40E_GLSW_TDPC(idx
),
685 veb
->stat_offsets_loaded
,
686 &oes
->tx_discards
, &es
->tx_discards
);
687 if (hw
->revision_id
> 0)
688 i40e_stat_update32(hw
, I40E_GLSW_RUPP(idx
),
689 veb
->stat_offsets_loaded
,
690 &oes
->rx_unknown_protocol
,
691 &es
->rx_unknown_protocol
);
692 i40e_stat_update48(hw
, I40E_GLSW_GORCH(idx
), I40E_GLSW_GORCL(idx
),
693 veb
->stat_offsets_loaded
,
694 &oes
->rx_bytes
, &es
->rx_bytes
);
695 i40e_stat_update48(hw
, I40E_GLSW_UPRCH(idx
), I40E_GLSW_UPRCL(idx
),
696 veb
->stat_offsets_loaded
,
697 &oes
->rx_unicast
, &es
->rx_unicast
);
698 i40e_stat_update48(hw
, I40E_GLSW_MPRCH(idx
), I40E_GLSW_MPRCL(idx
),
699 veb
->stat_offsets_loaded
,
700 &oes
->rx_multicast
, &es
->rx_multicast
);
701 i40e_stat_update48(hw
, I40E_GLSW_BPRCH(idx
), I40E_GLSW_BPRCL(idx
),
702 veb
->stat_offsets_loaded
,
703 &oes
->rx_broadcast
, &es
->rx_broadcast
);
705 i40e_stat_update48(hw
, I40E_GLSW_GOTCH(idx
), I40E_GLSW_GOTCL(idx
),
706 veb
->stat_offsets_loaded
,
707 &oes
->tx_bytes
, &es
->tx_bytes
);
708 i40e_stat_update48(hw
, I40E_GLSW_UPTCH(idx
), I40E_GLSW_UPTCL(idx
),
709 veb
->stat_offsets_loaded
,
710 &oes
->tx_unicast
, &es
->tx_unicast
);
711 i40e_stat_update48(hw
, I40E_GLSW_MPTCH(idx
), I40E_GLSW_MPTCL(idx
),
712 veb
->stat_offsets_loaded
,
713 &oes
->tx_multicast
, &es
->tx_multicast
);
714 i40e_stat_update48(hw
, I40E_GLSW_BPTCH(idx
), I40E_GLSW_BPTCL(idx
),
715 veb
->stat_offsets_loaded
,
716 &oes
->tx_broadcast
, &es
->tx_broadcast
);
717 for (i
= 0; i
< I40E_MAX_TRAFFIC_CLASS
; i
++) {
718 i40e_stat_update48(hw
, I40E_GLVEBTC_RPCH(i
, idx
),
719 I40E_GLVEBTC_RPCL(i
, idx
),
720 veb
->stat_offsets_loaded
,
721 &veb_oes
->tc_rx_packets
[i
],
722 &veb_es
->tc_rx_packets
[i
]);
723 i40e_stat_update48(hw
, I40E_GLVEBTC_RBCH(i
, idx
),
724 I40E_GLVEBTC_RBCL(i
, idx
),
725 veb
->stat_offsets_loaded
,
726 &veb_oes
->tc_rx_bytes
[i
],
727 &veb_es
->tc_rx_bytes
[i
]);
728 i40e_stat_update48(hw
, I40E_GLVEBTC_TPCH(i
, idx
),
729 I40E_GLVEBTC_TPCL(i
, idx
),
730 veb
->stat_offsets_loaded
,
731 &veb_oes
->tc_tx_packets
[i
],
732 &veb_es
->tc_tx_packets
[i
]);
733 i40e_stat_update48(hw
, I40E_GLVEBTC_TBCH(i
, idx
),
734 I40E_GLVEBTC_TBCL(i
, idx
),
735 veb
->stat_offsets_loaded
,
736 &veb_oes
->tc_tx_bytes
[i
],
737 &veb_es
->tc_tx_bytes
[i
]);
739 veb
->stat_offsets_loaded
= true;
744 * i40e_update_fcoe_stats - Update FCoE-specific ethernet statistics counters.
745 * @vsi: the VSI that is capable of doing FCoE
747 static void i40e_update_fcoe_stats(struct i40e_vsi
*vsi
)
749 struct i40e_pf
*pf
= vsi
->back
;
750 struct i40e_hw
*hw
= &pf
->hw
;
751 struct i40e_fcoe_stats
*ofs
;
752 struct i40e_fcoe_stats
*fs
; /* device's eth stats */
755 if (vsi
->type
!= I40E_VSI_FCOE
)
758 idx
= (pf
->pf_seid
- I40E_BASE_PF_SEID
) + I40E_FCOE_PF_STAT_OFFSET
;
759 fs
= &vsi
->fcoe_stats
;
760 ofs
= &vsi
->fcoe_stats_offsets
;
762 i40e_stat_update32(hw
, I40E_GL_FCOEPRC(idx
),
763 vsi
->fcoe_stat_offsets_loaded
,
764 &ofs
->rx_fcoe_packets
, &fs
->rx_fcoe_packets
);
765 i40e_stat_update48(hw
, I40E_GL_FCOEDWRCH(idx
), I40E_GL_FCOEDWRCL(idx
),
766 vsi
->fcoe_stat_offsets_loaded
,
767 &ofs
->rx_fcoe_dwords
, &fs
->rx_fcoe_dwords
);
768 i40e_stat_update32(hw
, I40E_GL_FCOERPDC(idx
),
769 vsi
->fcoe_stat_offsets_loaded
,
770 &ofs
->rx_fcoe_dropped
, &fs
->rx_fcoe_dropped
);
771 i40e_stat_update32(hw
, I40E_GL_FCOEPTC(idx
),
772 vsi
->fcoe_stat_offsets_loaded
,
773 &ofs
->tx_fcoe_packets
, &fs
->tx_fcoe_packets
);
774 i40e_stat_update48(hw
, I40E_GL_FCOEDWTCH(idx
), I40E_GL_FCOEDWTCL(idx
),
775 vsi
->fcoe_stat_offsets_loaded
,
776 &ofs
->tx_fcoe_dwords
, &fs
->tx_fcoe_dwords
);
777 i40e_stat_update32(hw
, I40E_GL_FCOECRC(idx
),
778 vsi
->fcoe_stat_offsets_loaded
,
779 &ofs
->fcoe_bad_fccrc
, &fs
->fcoe_bad_fccrc
);
780 i40e_stat_update32(hw
, I40E_GL_FCOELAST(idx
),
781 vsi
->fcoe_stat_offsets_loaded
,
782 &ofs
->fcoe_last_error
, &fs
->fcoe_last_error
);
783 i40e_stat_update32(hw
, I40E_GL_FCOEDDPC(idx
),
784 vsi
->fcoe_stat_offsets_loaded
,
785 &ofs
->fcoe_ddp_count
, &fs
->fcoe_ddp_count
);
787 vsi
->fcoe_stat_offsets_loaded
= true;
792 * i40e_update_link_xoff_rx - Update XOFF received in link flow control mode
793 * @pf: the corresponding PF
795 * Update the Rx XOFF counter (PAUSE frames) in link flow control mode
797 static void i40e_update_link_xoff_rx(struct i40e_pf
*pf
)
799 struct i40e_hw_port_stats
*osd
= &pf
->stats_offsets
;
800 struct i40e_hw_port_stats
*nsd
= &pf
->stats
;
801 struct i40e_hw
*hw
= &pf
->hw
;
804 if ((hw
->fc
.current_mode
!= I40E_FC_FULL
) &&
805 (hw
->fc
.current_mode
!= I40E_FC_RX_PAUSE
))
808 xoff
= nsd
->link_xoff_rx
;
809 i40e_stat_update32(hw
, I40E_GLPRT_LXOFFRXC(hw
->port
),
810 pf
->stat_offsets_loaded
,
811 &osd
->link_xoff_rx
, &nsd
->link_xoff_rx
);
813 /* No new LFC xoff rx */
814 if (!(nsd
->link_xoff_rx
- xoff
))
820 * i40e_update_prio_xoff_rx - Update XOFF received in PFC mode
821 * @pf: the corresponding PF
823 * Update the Rx XOFF counter (PAUSE frames) in PFC mode
825 static void i40e_update_prio_xoff_rx(struct i40e_pf
*pf
)
827 struct i40e_hw_port_stats
*osd
= &pf
->stats_offsets
;
828 struct i40e_hw_port_stats
*nsd
= &pf
->stats
;
829 bool xoff
[I40E_MAX_TRAFFIC_CLASS
] = {false};
830 struct i40e_dcbx_config
*dcb_cfg
;
831 struct i40e_hw
*hw
= &pf
->hw
;
835 dcb_cfg
= &hw
->local_dcbx_config
;
837 /* Collect Link XOFF stats when PFC is disabled */
838 if (!dcb_cfg
->pfc
.pfcenable
) {
839 i40e_update_link_xoff_rx(pf
);
843 for (i
= 0; i
< I40E_MAX_USER_PRIORITY
; i
++) {
844 u64 prio_xoff
= nsd
->priority_xoff_rx
[i
];
845 i40e_stat_update32(hw
, I40E_GLPRT_PXOFFRXC(hw
->port
, i
),
846 pf
->stat_offsets_loaded
,
847 &osd
->priority_xoff_rx
[i
],
848 &nsd
->priority_xoff_rx
[i
]);
850 /* No new PFC xoff rx */
851 if (!(nsd
->priority_xoff_rx
[i
] - prio_xoff
))
853 /* Get the TC for given priority */
854 tc
= dcb_cfg
->etscfg
.prioritytable
[i
];
860 * i40e_update_vsi_stats - Update the vsi statistics counters.
861 * @vsi: the VSI to be updated
863 * There are a few instances where we store the same stat in a
864 * couple of different structs. This is partly because we have
865 * the netdev stats that need to be filled out, which is slightly
866 * different from the "eth_stats" defined by the chip and used in
867 * VF communications. We sort it out here.
869 static void i40e_update_vsi_stats(struct i40e_vsi
*vsi
)
871 struct i40e_pf
*pf
= vsi
->back
;
872 struct rtnl_link_stats64
*ons
;
873 struct rtnl_link_stats64
*ns
; /* netdev stats */
874 struct i40e_eth_stats
*oes
;
875 struct i40e_eth_stats
*es
; /* device's eth stats */
876 u32 tx_restart
, tx_busy
;
885 if (test_bit(__I40E_DOWN
, &vsi
->state
) ||
886 test_bit(__I40E_CONFIG_BUSY
, &pf
->state
))
889 ns
= i40e_get_vsi_stats_struct(vsi
);
890 ons
= &vsi
->net_stats_offsets
;
891 es
= &vsi
->eth_stats
;
892 oes
= &vsi
->eth_stats_offsets
;
894 /* Gather up the netdev and vsi stats that the driver collects
895 * on the fly during packet processing
899 tx_restart
= tx_busy
= 0;
903 for (q
= 0; q
< vsi
->num_queue_pairs
; q
++) {
905 p
= ACCESS_ONCE(vsi
->tx_rings
[q
]);
908 start
= u64_stats_fetch_begin_irq(&p
->syncp
);
909 packets
= p
->stats
.packets
;
910 bytes
= p
->stats
.bytes
;
911 } while (u64_stats_fetch_retry_irq(&p
->syncp
, start
));
914 tx_restart
+= p
->tx_stats
.restart_queue
;
915 tx_busy
+= p
->tx_stats
.tx_busy
;
917 /* Rx queue is part of the same block as Tx queue */
920 start
= u64_stats_fetch_begin_irq(&p
->syncp
);
921 packets
= p
->stats
.packets
;
922 bytes
= p
->stats
.bytes
;
923 } while (u64_stats_fetch_retry_irq(&p
->syncp
, start
));
926 rx_buf
+= p
->rx_stats
.alloc_buff_failed
;
927 rx_page
+= p
->rx_stats
.alloc_page_failed
;
930 vsi
->tx_restart
= tx_restart
;
931 vsi
->tx_busy
= tx_busy
;
932 vsi
->rx_page_failed
= rx_page
;
933 vsi
->rx_buf_failed
= rx_buf
;
935 ns
->rx_packets
= rx_p
;
937 ns
->tx_packets
= tx_p
;
940 /* update netdev stats from eth stats */
941 i40e_update_eth_stats(vsi
);
942 ons
->tx_errors
= oes
->tx_errors
;
943 ns
->tx_errors
= es
->tx_errors
;
944 ons
->multicast
= oes
->rx_multicast
;
945 ns
->multicast
= es
->rx_multicast
;
946 ons
->rx_dropped
= oes
->rx_discards
;
947 ns
->rx_dropped
= es
->rx_discards
;
948 ons
->tx_dropped
= oes
->tx_discards
;
949 ns
->tx_dropped
= es
->tx_discards
;
951 /* pull in a couple PF stats if this is the main vsi */
952 if (vsi
== pf
->vsi
[pf
->lan_vsi
]) {
953 ns
->rx_crc_errors
= pf
->stats
.crc_errors
;
954 ns
->rx_errors
= pf
->stats
.crc_errors
+ pf
->stats
.illegal_bytes
;
955 ns
->rx_length_errors
= pf
->stats
.rx_length_errors
;
960 * i40e_update_pf_stats - Update the PF statistics counters.
961 * @pf: the PF to be updated
963 static void i40e_update_pf_stats(struct i40e_pf
*pf
)
965 struct i40e_hw_port_stats
*osd
= &pf
->stats_offsets
;
966 struct i40e_hw_port_stats
*nsd
= &pf
->stats
;
967 struct i40e_hw
*hw
= &pf
->hw
;
971 i40e_stat_update48(hw
, I40E_GLPRT_GORCH(hw
->port
),
972 I40E_GLPRT_GORCL(hw
->port
),
973 pf
->stat_offsets_loaded
,
974 &osd
->eth
.rx_bytes
, &nsd
->eth
.rx_bytes
);
975 i40e_stat_update48(hw
, I40E_GLPRT_GOTCH(hw
->port
),
976 I40E_GLPRT_GOTCL(hw
->port
),
977 pf
->stat_offsets_loaded
,
978 &osd
->eth
.tx_bytes
, &nsd
->eth
.tx_bytes
);
979 i40e_stat_update32(hw
, I40E_GLPRT_RDPC(hw
->port
),
980 pf
->stat_offsets_loaded
,
981 &osd
->eth
.rx_discards
,
982 &nsd
->eth
.rx_discards
);
983 i40e_stat_update48(hw
, I40E_GLPRT_UPRCH(hw
->port
),
984 I40E_GLPRT_UPRCL(hw
->port
),
985 pf
->stat_offsets_loaded
,
986 &osd
->eth
.rx_unicast
,
987 &nsd
->eth
.rx_unicast
);
988 i40e_stat_update48(hw
, I40E_GLPRT_MPRCH(hw
->port
),
989 I40E_GLPRT_MPRCL(hw
->port
),
990 pf
->stat_offsets_loaded
,
991 &osd
->eth
.rx_multicast
,
992 &nsd
->eth
.rx_multicast
);
993 i40e_stat_update48(hw
, I40E_GLPRT_BPRCH(hw
->port
),
994 I40E_GLPRT_BPRCL(hw
->port
),
995 pf
->stat_offsets_loaded
,
996 &osd
->eth
.rx_broadcast
,
997 &nsd
->eth
.rx_broadcast
);
998 i40e_stat_update48(hw
, I40E_GLPRT_UPTCH(hw
->port
),
999 I40E_GLPRT_UPTCL(hw
->port
),
1000 pf
->stat_offsets_loaded
,
1001 &osd
->eth
.tx_unicast
,
1002 &nsd
->eth
.tx_unicast
);
1003 i40e_stat_update48(hw
, I40E_GLPRT_MPTCH(hw
->port
),
1004 I40E_GLPRT_MPTCL(hw
->port
),
1005 pf
->stat_offsets_loaded
,
1006 &osd
->eth
.tx_multicast
,
1007 &nsd
->eth
.tx_multicast
);
1008 i40e_stat_update48(hw
, I40E_GLPRT_BPTCH(hw
->port
),
1009 I40E_GLPRT_BPTCL(hw
->port
),
1010 pf
->stat_offsets_loaded
,
1011 &osd
->eth
.tx_broadcast
,
1012 &nsd
->eth
.tx_broadcast
);
1014 i40e_stat_update32(hw
, I40E_GLPRT_TDOLD(hw
->port
),
1015 pf
->stat_offsets_loaded
,
1016 &osd
->tx_dropped_link_down
,
1017 &nsd
->tx_dropped_link_down
);
1019 i40e_stat_update32(hw
, I40E_GLPRT_CRCERRS(hw
->port
),
1020 pf
->stat_offsets_loaded
,
1021 &osd
->crc_errors
, &nsd
->crc_errors
);
1023 i40e_stat_update32(hw
, I40E_GLPRT_ILLERRC(hw
->port
),
1024 pf
->stat_offsets_loaded
,
1025 &osd
->illegal_bytes
, &nsd
->illegal_bytes
);
1027 i40e_stat_update32(hw
, I40E_GLPRT_MLFC(hw
->port
),
1028 pf
->stat_offsets_loaded
,
1029 &osd
->mac_local_faults
,
1030 &nsd
->mac_local_faults
);
1031 i40e_stat_update32(hw
, I40E_GLPRT_MRFC(hw
->port
),
1032 pf
->stat_offsets_loaded
,
1033 &osd
->mac_remote_faults
,
1034 &nsd
->mac_remote_faults
);
1036 i40e_stat_update32(hw
, I40E_GLPRT_RLEC(hw
->port
),
1037 pf
->stat_offsets_loaded
,
1038 &osd
->rx_length_errors
,
1039 &nsd
->rx_length_errors
);
1041 i40e_stat_update32(hw
, I40E_GLPRT_LXONRXC(hw
->port
),
1042 pf
->stat_offsets_loaded
,
1043 &osd
->link_xon_rx
, &nsd
->link_xon_rx
);
1044 i40e_stat_update32(hw
, I40E_GLPRT_LXONTXC(hw
->port
),
1045 pf
->stat_offsets_loaded
,
1046 &osd
->link_xon_tx
, &nsd
->link_xon_tx
);
1047 i40e_update_prio_xoff_rx(pf
); /* handles I40E_GLPRT_LXOFFRXC */
1048 i40e_stat_update32(hw
, I40E_GLPRT_LXOFFTXC(hw
->port
),
1049 pf
->stat_offsets_loaded
,
1050 &osd
->link_xoff_tx
, &nsd
->link_xoff_tx
);
1052 for (i
= 0; i
< 8; i
++) {
1053 i40e_stat_update32(hw
, I40E_GLPRT_PXONRXC(hw
->port
, i
),
1054 pf
->stat_offsets_loaded
,
1055 &osd
->priority_xon_rx
[i
],
1056 &nsd
->priority_xon_rx
[i
]);
1057 i40e_stat_update32(hw
, I40E_GLPRT_PXONTXC(hw
->port
, i
),
1058 pf
->stat_offsets_loaded
,
1059 &osd
->priority_xon_tx
[i
],
1060 &nsd
->priority_xon_tx
[i
]);
1061 i40e_stat_update32(hw
, I40E_GLPRT_PXOFFTXC(hw
->port
, i
),
1062 pf
->stat_offsets_loaded
,
1063 &osd
->priority_xoff_tx
[i
],
1064 &nsd
->priority_xoff_tx
[i
]);
1065 i40e_stat_update32(hw
,
1066 I40E_GLPRT_RXON2OFFCNT(hw
->port
, i
),
1067 pf
->stat_offsets_loaded
,
1068 &osd
->priority_xon_2_xoff
[i
],
1069 &nsd
->priority_xon_2_xoff
[i
]);
1072 i40e_stat_update48(hw
, I40E_GLPRT_PRC64H(hw
->port
),
1073 I40E_GLPRT_PRC64L(hw
->port
),
1074 pf
->stat_offsets_loaded
,
1075 &osd
->rx_size_64
, &nsd
->rx_size_64
);
1076 i40e_stat_update48(hw
, I40E_GLPRT_PRC127H(hw
->port
),
1077 I40E_GLPRT_PRC127L(hw
->port
),
1078 pf
->stat_offsets_loaded
,
1079 &osd
->rx_size_127
, &nsd
->rx_size_127
);
1080 i40e_stat_update48(hw
, I40E_GLPRT_PRC255H(hw
->port
),
1081 I40E_GLPRT_PRC255L(hw
->port
),
1082 pf
->stat_offsets_loaded
,
1083 &osd
->rx_size_255
, &nsd
->rx_size_255
);
1084 i40e_stat_update48(hw
, I40E_GLPRT_PRC511H(hw
->port
),
1085 I40E_GLPRT_PRC511L(hw
->port
),
1086 pf
->stat_offsets_loaded
,
1087 &osd
->rx_size_511
, &nsd
->rx_size_511
);
1088 i40e_stat_update48(hw
, I40E_GLPRT_PRC1023H(hw
->port
),
1089 I40E_GLPRT_PRC1023L(hw
->port
),
1090 pf
->stat_offsets_loaded
,
1091 &osd
->rx_size_1023
, &nsd
->rx_size_1023
);
1092 i40e_stat_update48(hw
, I40E_GLPRT_PRC1522H(hw
->port
),
1093 I40E_GLPRT_PRC1522L(hw
->port
),
1094 pf
->stat_offsets_loaded
,
1095 &osd
->rx_size_1522
, &nsd
->rx_size_1522
);
1096 i40e_stat_update48(hw
, I40E_GLPRT_PRC9522H(hw
->port
),
1097 I40E_GLPRT_PRC9522L(hw
->port
),
1098 pf
->stat_offsets_loaded
,
1099 &osd
->rx_size_big
, &nsd
->rx_size_big
);
1101 i40e_stat_update48(hw
, I40E_GLPRT_PTC64H(hw
->port
),
1102 I40E_GLPRT_PTC64L(hw
->port
),
1103 pf
->stat_offsets_loaded
,
1104 &osd
->tx_size_64
, &nsd
->tx_size_64
);
1105 i40e_stat_update48(hw
, I40E_GLPRT_PTC127H(hw
->port
),
1106 I40E_GLPRT_PTC127L(hw
->port
),
1107 pf
->stat_offsets_loaded
,
1108 &osd
->tx_size_127
, &nsd
->tx_size_127
);
1109 i40e_stat_update48(hw
, I40E_GLPRT_PTC255H(hw
->port
),
1110 I40E_GLPRT_PTC255L(hw
->port
),
1111 pf
->stat_offsets_loaded
,
1112 &osd
->tx_size_255
, &nsd
->tx_size_255
);
1113 i40e_stat_update48(hw
, I40E_GLPRT_PTC511H(hw
->port
),
1114 I40E_GLPRT_PTC511L(hw
->port
),
1115 pf
->stat_offsets_loaded
,
1116 &osd
->tx_size_511
, &nsd
->tx_size_511
);
1117 i40e_stat_update48(hw
, I40E_GLPRT_PTC1023H(hw
->port
),
1118 I40E_GLPRT_PTC1023L(hw
->port
),
1119 pf
->stat_offsets_loaded
,
1120 &osd
->tx_size_1023
, &nsd
->tx_size_1023
);
1121 i40e_stat_update48(hw
, I40E_GLPRT_PTC1522H(hw
->port
),
1122 I40E_GLPRT_PTC1522L(hw
->port
),
1123 pf
->stat_offsets_loaded
,
1124 &osd
->tx_size_1522
, &nsd
->tx_size_1522
);
1125 i40e_stat_update48(hw
, I40E_GLPRT_PTC9522H(hw
->port
),
1126 I40E_GLPRT_PTC9522L(hw
->port
),
1127 pf
->stat_offsets_loaded
,
1128 &osd
->tx_size_big
, &nsd
->tx_size_big
);
1130 i40e_stat_update32(hw
, I40E_GLPRT_RUC(hw
->port
),
1131 pf
->stat_offsets_loaded
,
1132 &osd
->rx_undersize
, &nsd
->rx_undersize
);
1133 i40e_stat_update32(hw
, I40E_GLPRT_RFC(hw
->port
),
1134 pf
->stat_offsets_loaded
,
1135 &osd
->rx_fragments
, &nsd
->rx_fragments
);
1136 i40e_stat_update32(hw
, I40E_GLPRT_ROC(hw
->port
),
1137 pf
->stat_offsets_loaded
,
1138 &osd
->rx_oversize
, &nsd
->rx_oversize
);
1139 i40e_stat_update32(hw
, I40E_GLPRT_RJC(hw
->port
),
1140 pf
->stat_offsets_loaded
,
1141 &osd
->rx_jabber
, &nsd
->rx_jabber
);
1144 i40e_stat_update32(hw
,
1145 I40E_GLQF_PCNT(I40E_FD_ATR_STAT_IDX(pf
->hw
.pf_id
)),
1146 pf
->stat_offsets_loaded
,
1147 &osd
->fd_atr_match
, &nsd
->fd_atr_match
);
1148 i40e_stat_update32(hw
,
1149 I40E_GLQF_PCNT(I40E_FD_SB_STAT_IDX(pf
->hw
.pf_id
)),
1150 pf
->stat_offsets_loaded
,
1151 &osd
->fd_sb_match
, &nsd
->fd_sb_match
);
1152 i40e_stat_update32(hw
,
1153 I40E_GLQF_PCNT(I40E_FD_ATR_TUNNEL_STAT_IDX(pf
->hw
.pf_id
)),
1154 pf
->stat_offsets_loaded
,
1155 &osd
->fd_atr_tunnel_match
, &nsd
->fd_atr_tunnel_match
);
1157 val
= rd32(hw
, I40E_PRTPM_EEE_STAT
);
1158 nsd
->tx_lpi_status
=
1159 (val
& I40E_PRTPM_EEE_STAT_TX_LPI_STATUS_MASK
) >>
1160 I40E_PRTPM_EEE_STAT_TX_LPI_STATUS_SHIFT
;
1161 nsd
->rx_lpi_status
=
1162 (val
& I40E_PRTPM_EEE_STAT_RX_LPI_STATUS_MASK
) >>
1163 I40E_PRTPM_EEE_STAT_RX_LPI_STATUS_SHIFT
;
1164 i40e_stat_update32(hw
, I40E_PRTPM_TLPIC
,
1165 pf
->stat_offsets_loaded
,
1166 &osd
->tx_lpi_count
, &nsd
->tx_lpi_count
);
1167 i40e_stat_update32(hw
, I40E_PRTPM_RLPIC
,
1168 pf
->stat_offsets_loaded
,
1169 &osd
->rx_lpi_count
, &nsd
->rx_lpi_count
);
1171 if (pf
->flags
& I40E_FLAG_FD_SB_ENABLED
&&
1172 !(pf
->auto_disable_flags
& I40E_FLAG_FD_SB_ENABLED
))
1173 nsd
->fd_sb_status
= true;
1175 nsd
->fd_sb_status
= false;
1177 if (pf
->flags
& I40E_FLAG_FD_ATR_ENABLED
&&
1178 !(pf
->auto_disable_flags
& I40E_FLAG_FD_ATR_ENABLED
))
1179 nsd
->fd_atr_status
= true;
1181 nsd
->fd_atr_status
= false;
1183 pf
->stat_offsets_loaded
= true;
1187 * i40e_update_stats - Update the various statistics counters.
1188 * @vsi: the VSI to be updated
1190 * Update the various stats for this VSI and its related entities.
1192 void i40e_update_stats(struct i40e_vsi
*vsi
)
1194 struct i40e_pf
*pf
= vsi
->back
;
1196 if (vsi
== pf
->vsi
[pf
->lan_vsi
])
1197 i40e_update_pf_stats(pf
);
1199 i40e_update_vsi_stats(vsi
);
1201 i40e_update_fcoe_stats(vsi
);
1206 * i40e_find_filter - Search VSI filter list for specific mac/vlan filter
1207 * @vsi: the VSI to be searched
1208 * @macaddr: the MAC address
1210 * @is_vf: make sure its a VF filter, else doesn't matter
1211 * @is_netdev: make sure its a netdev filter, else doesn't matter
1213 * Returns ptr to the filter object or NULL
1215 static struct i40e_mac_filter
*i40e_find_filter(struct i40e_vsi
*vsi
,
1216 u8
*macaddr
, s16 vlan
,
1217 bool is_vf
, bool is_netdev
)
1219 struct i40e_mac_filter
*f
;
1221 if (!vsi
|| !macaddr
)
1224 list_for_each_entry(f
, &vsi
->mac_filter_list
, list
) {
1225 if ((ether_addr_equal(macaddr
, f
->macaddr
)) &&
1226 (vlan
== f
->vlan
) &&
1227 (!is_vf
|| f
->is_vf
) &&
1228 (!is_netdev
|| f
->is_netdev
))
1235 * i40e_find_mac - Find a mac addr in the macvlan filters list
1236 * @vsi: the VSI to be searched
1237 * @macaddr: the MAC address we are searching for
1238 * @is_vf: make sure its a VF filter, else doesn't matter
1239 * @is_netdev: make sure its a netdev filter, else doesn't matter
1241 * Returns the first filter with the provided MAC address or NULL if
1242 * MAC address was not found
1244 struct i40e_mac_filter
*i40e_find_mac(struct i40e_vsi
*vsi
, u8
*macaddr
,
1245 bool is_vf
, bool is_netdev
)
1247 struct i40e_mac_filter
*f
;
1249 if (!vsi
|| !macaddr
)
1252 list_for_each_entry(f
, &vsi
->mac_filter_list
, list
) {
1253 if ((ether_addr_equal(macaddr
, f
->macaddr
)) &&
1254 (!is_vf
|| f
->is_vf
) &&
1255 (!is_netdev
|| f
->is_netdev
))
1262 * i40e_is_vsi_in_vlan - Check if VSI is in vlan mode
1263 * @vsi: the VSI to be searched
1265 * Returns true if VSI is in vlan mode or false otherwise
1267 bool i40e_is_vsi_in_vlan(struct i40e_vsi
*vsi
)
1269 struct i40e_mac_filter
*f
;
1271 /* Only -1 for all the filters denotes not in vlan mode
1272 * so we have to go through all the list in order to make sure
1274 list_for_each_entry(f
, &vsi
->mac_filter_list
, list
) {
1275 if (f
->vlan
>= 0 || vsi
->info
.pvid
)
1283 * i40e_put_mac_in_vlan - Make macvlan filters from macaddrs and vlans
1284 * @vsi: the VSI to be searched
1285 * @macaddr: the mac address to be filtered
1286 * @is_vf: true if it is a VF
1287 * @is_netdev: true if it is a netdev
1289 * Goes through all the macvlan filters and adds a
1290 * macvlan filter for each unique vlan that already exists
1292 * Returns first filter found on success, else NULL
1294 struct i40e_mac_filter
*i40e_put_mac_in_vlan(struct i40e_vsi
*vsi
, u8
*macaddr
,
1295 bool is_vf
, bool is_netdev
)
1297 struct i40e_mac_filter
*f
;
1299 list_for_each_entry(f
, &vsi
->mac_filter_list
, list
) {
1301 f
->vlan
= le16_to_cpu(vsi
->info
.pvid
);
1302 if (!i40e_find_filter(vsi
, macaddr
, f
->vlan
,
1303 is_vf
, is_netdev
)) {
1304 if (!i40e_add_filter(vsi
, macaddr
, f
->vlan
,
1310 return list_first_entry_or_null(&vsi
->mac_filter_list
,
1311 struct i40e_mac_filter
, list
);
1315 * i40e_rm_default_mac_filter - Remove the default MAC filter set by NVM
1316 * @vsi: the PF Main VSI - inappropriate for any other VSI
1317 * @macaddr: the MAC address
1319 * Some older firmware configurations set up a default promiscuous VLAN
1320 * filter that needs to be removed.
1322 static int i40e_rm_default_mac_filter(struct i40e_vsi
*vsi
, u8
*macaddr
)
1324 struct i40e_aqc_remove_macvlan_element_data element
;
1325 struct i40e_pf
*pf
= vsi
->back
;
1328 /* Only appropriate for the PF main VSI */
1329 if (vsi
->type
!= I40E_VSI_MAIN
)
1332 memset(&element
, 0, sizeof(element
));
1333 ether_addr_copy(element
.mac_addr
, macaddr
);
1334 element
.vlan_tag
= 0;
1335 element
.flags
= I40E_AQC_MACVLAN_DEL_PERFECT_MATCH
|
1336 I40E_AQC_MACVLAN_DEL_IGNORE_VLAN
;
1337 ret
= i40e_aq_remove_macvlan(&pf
->hw
, vsi
->seid
, &element
, 1, NULL
);
1345 * i40e_add_filter - Add a mac/vlan filter to the VSI
1346 * @vsi: the VSI to be searched
1347 * @macaddr: the MAC address
1349 * @is_vf: make sure its a VF filter, else doesn't matter
1350 * @is_netdev: make sure its a netdev filter, else doesn't matter
1352 * Returns ptr to the filter object or NULL when no memory available.
1354 struct i40e_mac_filter
*i40e_add_filter(struct i40e_vsi
*vsi
,
1355 u8
*macaddr
, s16 vlan
,
1356 bool is_vf
, bool is_netdev
)
1358 struct i40e_mac_filter
*f
;
1360 if (!vsi
|| !macaddr
)
1363 f
= i40e_find_filter(vsi
, macaddr
, vlan
, is_vf
, is_netdev
);
1365 f
= kzalloc(sizeof(*f
), GFP_ATOMIC
);
1367 goto add_filter_out
;
1369 ether_addr_copy(f
->macaddr
, macaddr
);
1373 INIT_LIST_HEAD(&f
->list
);
1374 list_add(&f
->list
, &vsi
->mac_filter_list
);
1377 /* increment counter and add a new flag if needed */
1383 } else if (is_netdev
) {
1384 if (!f
->is_netdev
) {
1385 f
->is_netdev
= true;
1392 /* changed tells sync_filters_subtask to
1393 * push the filter down to the firmware
1396 vsi
->flags
|= I40E_VSI_FLAG_FILTER_CHANGED
;
1397 vsi
->back
->flags
|= I40E_FLAG_FILTER_SYNC
;
1405 * i40e_del_filter - Remove a mac/vlan filter from the VSI
1406 * @vsi: the VSI to be searched
1407 * @macaddr: the MAC address
1409 * @is_vf: make sure it's a VF filter, else doesn't matter
1410 * @is_netdev: make sure it's a netdev filter, else doesn't matter
1412 void i40e_del_filter(struct i40e_vsi
*vsi
,
1413 u8
*macaddr
, s16 vlan
,
1414 bool is_vf
, bool is_netdev
)
1416 struct i40e_mac_filter
*f
;
1418 if (!vsi
|| !macaddr
)
1421 f
= i40e_find_filter(vsi
, macaddr
, vlan
, is_vf
, is_netdev
);
1422 if (!f
|| f
->counter
== 0)
1430 } else if (is_netdev
) {
1432 f
->is_netdev
= false;
1436 /* make sure we don't remove a filter in use by VF or netdev */
1438 min_f
+= (f
->is_vf
? 1 : 0);
1439 min_f
+= (f
->is_netdev
? 1 : 0);
1441 if (f
->counter
> min_f
)
1445 /* counter == 0 tells sync_filters_subtask to
1446 * remove the filter from the firmware's list
1448 if (f
->counter
== 0) {
1450 vsi
->flags
|= I40E_VSI_FLAG_FILTER_CHANGED
;
1451 vsi
->back
->flags
|= I40E_FLAG_FILTER_SYNC
;
1456 * i40e_set_mac - NDO callback to set mac address
1457 * @netdev: network interface device structure
1458 * @p: pointer to an address structure
1460 * Returns 0 on success, negative on failure
1463 int i40e_set_mac(struct net_device
*netdev
, void *p
)
1465 static int i40e_set_mac(struct net_device
*netdev
, void *p
)
1468 struct i40e_netdev_priv
*np
= netdev_priv(netdev
);
1469 struct i40e_vsi
*vsi
= np
->vsi
;
1470 struct i40e_pf
*pf
= vsi
->back
;
1471 struct i40e_hw
*hw
= &pf
->hw
;
1472 struct sockaddr
*addr
= p
;
1473 struct i40e_mac_filter
*f
;
1475 if (!is_valid_ether_addr(addr
->sa_data
))
1476 return -EADDRNOTAVAIL
;
1478 if (ether_addr_equal(netdev
->dev_addr
, addr
->sa_data
)) {
1479 netdev_info(netdev
, "already using mac address %pM\n",
1484 if (test_bit(__I40E_DOWN
, &vsi
->back
->state
) ||
1485 test_bit(__I40E_RESET_RECOVERY_PENDING
, &vsi
->back
->state
))
1486 return -EADDRNOTAVAIL
;
1488 if (ether_addr_equal(hw
->mac
.addr
, addr
->sa_data
))
1489 netdev_info(netdev
, "returning to hw mac address %pM\n",
1492 netdev_info(netdev
, "set new mac address %pM\n", addr
->sa_data
);
1494 if (vsi
->type
== I40E_VSI_MAIN
) {
1496 ret
= i40e_aq_mac_address_write(&vsi
->back
->hw
,
1497 I40E_AQC_WRITE_TYPE_LAA_WOL
,
1498 addr
->sa_data
, NULL
);
1501 "Addr change for Main VSI failed: %d\n",
1503 return -EADDRNOTAVAIL
;
1507 if (ether_addr_equal(netdev
->dev_addr
, hw
->mac
.addr
)) {
1508 struct i40e_aqc_remove_macvlan_element_data element
;
1510 memset(&element
, 0, sizeof(element
));
1511 ether_addr_copy(element
.mac_addr
, netdev
->dev_addr
);
1512 element
.flags
= I40E_AQC_MACVLAN_DEL_PERFECT_MATCH
;
1513 i40e_aq_remove_macvlan(&pf
->hw
, vsi
->seid
, &element
, 1, NULL
);
1515 i40e_del_filter(vsi
, netdev
->dev_addr
, I40E_VLAN_ANY
,
1519 if (ether_addr_equal(addr
->sa_data
, hw
->mac
.addr
)) {
1520 struct i40e_aqc_add_macvlan_element_data element
;
1522 memset(&element
, 0, sizeof(element
));
1523 ether_addr_copy(element
.mac_addr
, hw
->mac
.addr
);
1524 element
.flags
= cpu_to_le16(I40E_AQC_MACVLAN_ADD_PERFECT_MATCH
);
1525 i40e_aq_add_macvlan(&pf
->hw
, vsi
->seid
, &element
, 1, NULL
);
1527 f
= i40e_add_filter(vsi
, addr
->sa_data
, I40E_VLAN_ANY
,
1533 i40e_sync_vsi_filters(vsi
, false);
1534 ether_addr_copy(netdev
->dev_addr
, addr
->sa_data
);
1540 * i40e_vsi_setup_queue_map - Setup a VSI queue map based on enabled_tc
1541 * @vsi: the VSI being setup
1542 * @ctxt: VSI context structure
1543 * @enabled_tc: Enabled TCs bitmap
1544 * @is_add: True if called before Add VSI
1546 * Setup VSI queue mapping for enabled traffic classes.
1549 void i40e_vsi_setup_queue_map(struct i40e_vsi
*vsi
,
1550 struct i40e_vsi_context
*ctxt
,
1554 static void i40e_vsi_setup_queue_map(struct i40e_vsi
*vsi
,
1555 struct i40e_vsi_context
*ctxt
,
1560 struct i40e_pf
*pf
= vsi
->back
;
1570 sections
= I40E_AQ_VSI_PROP_QUEUE_MAP_VALID
;
1573 if (enabled_tc
&& (vsi
->back
->flags
& I40E_FLAG_DCB_ENABLED
)) {
1574 /* Find numtc from enabled TC bitmap */
1575 for (i
= 0; i
< I40E_MAX_TRAFFIC_CLASS
; i
++) {
1576 if (enabled_tc
& BIT_ULL(i
)) /* TC is enabled */
1580 dev_warn(&pf
->pdev
->dev
, "DCB is enabled but no TC enabled, forcing TC0\n");
1584 /* At least TC0 is enabled in case of non-DCB case */
1588 vsi
->tc_config
.numtc
= numtc
;
1589 vsi
->tc_config
.enabled_tc
= enabled_tc
? enabled_tc
: 1;
1590 /* Number of queues per enabled TC */
1591 /* In MFP case we can have a much lower count of MSIx
1592 * vectors available and so we need to lower the used
1595 if (pf
->flags
& I40E_FLAG_MSIX_ENABLED
)
1596 qcount
= min_t(int, vsi
->alloc_queue_pairs
, pf
->num_lan_msix
);
1598 qcount
= vsi
->alloc_queue_pairs
;
1599 num_tc_qps
= qcount
/ numtc
;
1600 num_tc_qps
= min_t(int, num_tc_qps
, i40e_pf_get_max_q_per_tc(pf
));
1602 /* Setup queue offset/count for all TCs for given VSI */
1603 for (i
= 0; i
< I40E_MAX_TRAFFIC_CLASS
; i
++) {
1604 /* See if the given TC is enabled for the given VSI */
1605 if (vsi
->tc_config
.enabled_tc
& BIT_ULL(i
)) {
1609 switch (vsi
->type
) {
1611 qcount
= min_t(int, pf
->rss_size
, num_tc_qps
);
1615 qcount
= num_tc_qps
;
1619 case I40E_VSI_SRIOV
:
1620 case I40E_VSI_VMDQ2
:
1622 qcount
= num_tc_qps
;
1626 vsi
->tc_config
.tc_info
[i
].qoffset
= offset
;
1627 vsi
->tc_config
.tc_info
[i
].qcount
= qcount
;
1629 /* find the next higher power-of-2 of num queue pairs */
1632 while (num_qps
&& (BIT_ULL(pow
) < qcount
)) {
1637 vsi
->tc_config
.tc_info
[i
].netdev_tc
= netdev_tc
++;
1639 (offset
<< I40E_AQ_VSI_TC_QUE_OFFSET_SHIFT
) |
1640 (pow
<< I40E_AQ_VSI_TC_QUE_NUMBER_SHIFT
);
1644 /* TC is not enabled so set the offset to
1645 * default queue and allocate one queue
1648 vsi
->tc_config
.tc_info
[i
].qoffset
= 0;
1649 vsi
->tc_config
.tc_info
[i
].qcount
= 1;
1650 vsi
->tc_config
.tc_info
[i
].netdev_tc
= 0;
1654 ctxt
->info
.tc_mapping
[i
] = cpu_to_le16(qmap
);
1657 /* Set actual Tx/Rx queue pairs */
1658 vsi
->num_queue_pairs
= offset
;
1659 if ((vsi
->type
== I40E_VSI_MAIN
) && (numtc
== 1)) {
1660 if (vsi
->req_queue_pairs
> 0)
1661 vsi
->num_queue_pairs
= vsi
->req_queue_pairs
;
1662 else if (pf
->flags
& I40E_FLAG_MSIX_ENABLED
)
1663 vsi
->num_queue_pairs
= pf
->num_lan_msix
;
1666 /* Scheduler section valid can only be set for ADD VSI */
1668 sections
|= I40E_AQ_VSI_PROP_SCHED_VALID
;
1670 ctxt
->info
.up_enable_bits
= enabled_tc
;
1672 if (vsi
->type
== I40E_VSI_SRIOV
) {
1673 ctxt
->info
.mapping_flags
|=
1674 cpu_to_le16(I40E_AQ_VSI_QUE_MAP_NONCONTIG
);
1675 for (i
= 0; i
< vsi
->num_queue_pairs
; i
++)
1676 ctxt
->info
.queue_mapping
[i
] =
1677 cpu_to_le16(vsi
->base_queue
+ i
);
1679 ctxt
->info
.mapping_flags
|=
1680 cpu_to_le16(I40E_AQ_VSI_QUE_MAP_CONTIG
);
1681 ctxt
->info
.queue_mapping
[0] = cpu_to_le16(vsi
->base_queue
);
1683 ctxt
->info
.valid_sections
|= cpu_to_le16(sections
);
1687 * i40e_set_rx_mode - NDO callback to set the netdev filters
1688 * @netdev: network interface device structure
1691 void i40e_set_rx_mode(struct net_device
*netdev
)
1693 static void i40e_set_rx_mode(struct net_device
*netdev
)
1696 struct i40e_netdev_priv
*np
= netdev_priv(netdev
);
1697 struct i40e_mac_filter
*f
, *ftmp
;
1698 struct i40e_vsi
*vsi
= np
->vsi
;
1699 struct netdev_hw_addr
*uca
;
1700 struct netdev_hw_addr
*mca
;
1701 struct netdev_hw_addr
*ha
;
1703 /* add addr if not already in the filter list */
1704 netdev_for_each_uc_addr(uca
, netdev
) {
1705 if (!i40e_find_mac(vsi
, uca
->addr
, false, true)) {
1706 if (i40e_is_vsi_in_vlan(vsi
))
1707 i40e_put_mac_in_vlan(vsi
, uca
->addr
,
1710 i40e_add_filter(vsi
, uca
->addr
, I40E_VLAN_ANY
,
1715 netdev_for_each_mc_addr(mca
, netdev
) {
1716 if (!i40e_find_mac(vsi
, mca
->addr
, false, true)) {
1717 if (i40e_is_vsi_in_vlan(vsi
))
1718 i40e_put_mac_in_vlan(vsi
, mca
->addr
,
1721 i40e_add_filter(vsi
, mca
->addr
, I40E_VLAN_ANY
,
1726 /* remove filter if not in netdev list */
1727 list_for_each_entry_safe(f
, ftmp
, &vsi
->mac_filter_list
, list
) {
1733 if (is_multicast_ether_addr(f
->macaddr
)) {
1734 netdev_for_each_mc_addr(mca
, netdev
) {
1735 if (ether_addr_equal(mca
->addr
, f
->macaddr
)) {
1741 netdev_for_each_uc_addr(uca
, netdev
) {
1742 if (ether_addr_equal(uca
->addr
, f
->macaddr
)) {
1748 for_each_dev_addr(netdev
, ha
) {
1749 if (ether_addr_equal(ha
->addr
, f
->macaddr
)) {
1757 vsi
, f
->macaddr
, I40E_VLAN_ANY
, false, true);
1760 /* check for other flag changes */
1761 if (vsi
->current_netdev_flags
!= vsi
->netdev
->flags
) {
1762 vsi
->flags
|= I40E_VSI_FLAG_FILTER_CHANGED
;
1763 vsi
->back
->flags
|= I40E_FLAG_FILTER_SYNC
;
1768 * i40e_sync_vsi_filters - Update the VSI filter list to the HW
1769 * @vsi: ptr to the VSI
1770 * @grab_rtnl: whether RTNL needs to be grabbed
1772 * Push any outstanding VSI filter changes through the AdminQ.
1774 * Returns 0 or error value
1776 int i40e_sync_vsi_filters(struct i40e_vsi
*vsi
, bool grab_rtnl
)
1778 struct i40e_mac_filter
*f
, *ftmp
;
1779 bool promisc_forced_on
= false;
1780 bool add_happened
= false;
1781 int filter_list_len
= 0;
1782 u32 changed_flags
= 0;
1783 i40e_status ret
= 0;
1790 /* empty array typed pointers, kcalloc later */
1791 struct i40e_aqc_add_macvlan_element_data
*add_list
;
1792 struct i40e_aqc_remove_macvlan_element_data
*del_list
;
1794 while (test_and_set_bit(__I40E_CONFIG_BUSY
, &vsi
->state
))
1795 usleep_range(1000, 2000);
1799 changed_flags
= vsi
->current_netdev_flags
^ vsi
->netdev
->flags
;
1800 vsi
->current_netdev_flags
= vsi
->netdev
->flags
;
1803 if (vsi
->flags
& I40E_VSI_FLAG_FILTER_CHANGED
) {
1804 vsi
->flags
&= ~I40E_VSI_FLAG_FILTER_CHANGED
;
1806 filter_list_len
= pf
->hw
.aq
.asq_buf_size
/
1807 sizeof(struct i40e_aqc_remove_macvlan_element_data
);
1808 del_list
= kcalloc(filter_list_len
,
1809 sizeof(struct i40e_aqc_remove_macvlan_element_data
),
1814 list_for_each_entry_safe(f
, ftmp
, &vsi
->mac_filter_list
, list
) {
1818 if (f
->counter
!= 0)
1823 /* add to delete list */
1824 ether_addr_copy(del_list
[num_del
].mac_addr
, f
->macaddr
);
1825 del_list
[num_del
].vlan_tag
=
1826 cpu_to_le16((u16
)(f
->vlan
==
1827 I40E_VLAN_ANY
? 0 : f
->vlan
));
1829 cmd_flags
|= I40E_AQC_MACVLAN_DEL_PERFECT_MATCH
;
1830 del_list
[num_del
].flags
= cmd_flags
;
1833 /* unlink from filter list */
1837 /* flush a full buffer */
1838 if (num_del
== filter_list_len
) {
1839 ret
= i40e_aq_remove_macvlan(&pf
->hw
,
1840 vsi
->seid
, del_list
, num_del
,
1842 aq_err
= pf
->hw
.aq
.asq_last_status
;
1844 memset(del_list
, 0, sizeof(*del_list
));
1846 if (ret
&& aq_err
!= I40E_AQ_RC_ENOENT
)
1847 dev_info(&pf
->pdev
->dev
,
1848 "ignoring delete macvlan error, err %s, aq_err %s while flushing a full buffer\n",
1849 i40e_stat_str(&pf
->hw
, ret
),
1850 i40e_aq_str(&pf
->hw
, aq_err
));
1854 ret
= i40e_aq_remove_macvlan(&pf
->hw
, vsi
->seid
,
1855 del_list
, num_del
, NULL
);
1856 aq_err
= pf
->hw
.aq
.asq_last_status
;
1859 if (ret
&& aq_err
!= I40E_AQ_RC_ENOENT
)
1860 dev_info(&pf
->pdev
->dev
,
1861 "ignoring delete macvlan error, err %s aq_err %s\n",
1862 i40e_stat_str(&pf
->hw
, ret
),
1863 i40e_aq_str(&pf
->hw
, aq_err
));
1869 /* do all the adds now */
1870 filter_list_len
= pf
->hw
.aq
.asq_buf_size
/
1871 sizeof(struct i40e_aqc_add_macvlan_element_data
),
1872 add_list
= kcalloc(filter_list_len
,
1873 sizeof(struct i40e_aqc_add_macvlan_element_data
),
1878 list_for_each_entry_safe(f
, ftmp
, &vsi
->mac_filter_list
, list
) {
1882 if (f
->counter
== 0)
1885 add_happened
= true;
1888 /* add to add array */
1889 ether_addr_copy(add_list
[num_add
].mac_addr
, f
->macaddr
);
1890 add_list
[num_add
].vlan_tag
=
1892 (u16
)(f
->vlan
== I40E_VLAN_ANY
? 0 : f
->vlan
));
1893 add_list
[num_add
].queue_number
= 0;
1895 cmd_flags
|= I40E_AQC_MACVLAN_ADD_PERFECT_MATCH
;
1896 add_list
[num_add
].flags
= cpu_to_le16(cmd_flags
);
1899 /* flush a full buffer */
1900 if (num_add
== filter_list_len
) {
1901 ret
= i40e_aq_add_macvlan(&pf
->hw
, vsi
->seid
,
1904 aq_err
= pf
->hw
.aq
.asq_last_status
;
1909 memset(add_list
, 0, sizeof(*add_list
));
1913 ret
= i40e_aq_add_macvlan(&pf
->hw
, vsi
->seid
,
1914 add_list
, num_add
, NULL
);
1915 aq_err
= pf
->hw
.aq
.asq_last_status
;
1921 if (add_happened
&& ret
&& aq_err
!= I40E_AQ_RC_EINVAL
) {
1922 dev_info(&pf
->pdev
->dev
,
1923 "add filter failed, err %s aq_err %s\n",
1924 i40e_stat_str(&pf
->hw
, ret
),
1925 i40e_aq_str(&pf
->hw
, aq_err
));
1926 if ((pf
->hw
.aq
.asq_last_status
== I40E_AQ_RC_ENOSPC
) &&
1927 !test_bit(__I40E_FILTER_OVERFLOW_PROMISC
,
1929 promisc_forced_on
= true;
1930 set_bit(__I40E_FILTER_OVERFLOW_PROMISC
,
1932 dev_info(&pf
->pdev
->dev
, "promiscuous mode forced on\n");
1937 /* check for changes in promiscuous modes */
1938 if (changed_flags
& IFF_ALLMULTI
) {
1939 bool cur_multipromisc
;
1940 cur_multipromisc
= !!(vsi
->current_netdev_flags
& IFF_ALLMULTI
);
1941 ret
= i40e_aq_set_vsi_multicast_promiscuous(&vsi
->back
->hw
,
1946 dev_info(&pf
->pdev
->dev
,
1947 "set multi promisc failed, err %s aq_err %s\n",
1948 i40e_stat_str(&pf
->hw
, ret
),
1949 i40e_aq_str(&pf
->hw
,
1950 pf
->hw
.aq
.asq_last_status
));
1952 if ((changed_flags
& IFF_PROMISC
) || promisc_forced_on
) {
1954 cur_promisc
= (!!(vsi
->current_netdev_flags
& IFF_PROMISC
) ||
1955 test_bit(__I40E_FILTER_OVERFLOW_PROMISC
,
1957 if (vsi
->type
== I40E_VSI_MAIN
&& pf
->lan_veb
!= I40E_NO_VEB
) {
1958 /* set defport ON for Main VSI instead of true promisc
1959 * this way we will get all unicast/multicast and VLAN
1960 * promisc behavior but will not get VF or VMDq traffic
1961 * replicated on the Main VSI.
1963 if (pf
->cur_promisc
!= cur_promisc
) {
1964 pf
->cur_promisc
= cur_promisc
;
1966 i40e_do_reset_safe(pf
,
1967 BIT(__I40E_PF_RESET_REQUESTED
));
1970 BIT(__I40E_PF_RESET_REQUESTED
));
1973 ret
= i40e_aq_set_vsi_unicast_promiscuous(
1978 dev_info(&pf
->pdev
->dev
,
1979 "set unicast promisc failed, err %d, aq_err %d\n",
1980 ret
, pf
->hw
.aq
.asq_last_status
);
1981 ret
= i40e_aq_set_vsi_multicast_promiscuous(
1986 dev_info(&pf
->pdev
->dev
,
1987 "set multicast promisc failed, err %d, aq_err %d\n",
1988 ret
, pf
->hw
.aq
.asq_last_status
);
1990 ret
= i40e_aq_set_vsi_broadcast(&vsi
->back
->hw
,
1994 dev_info(&pf
->pdev
->dev
,
1995 "set brdcast promisc failed, err %s, aq_err %s\n",
1996 i40e_stat_str(&pf
->hw
, ret
),
1997 i40e_aq_str(&pf
->hw
,
1998 pf
->hw
.aq
.asq_last_status
));
2001 clear_bit(__I40E_CONFIG_BUSY
, &vsi
->state
);
2006 * i40e_sync_filters_subtask - Sync the VSI filter list with HW
2007 * @pf: board private structure
2009 static void i40e_sync_filters_subtask(struct i40e_pf
*pf
)
2013 if (!pf
|| !(pf
->flags
& I40E_FLAG_FILTER_SYNC
))
2015 pf
->flags
&= ~I40E_FLAG_FILTER_SYNC
;
2017 for (v
= 0; v
< pf
->num_alloc_vsi
; v
++) {
2019 (pf
->vsi
[v
]->flags
& I40E_VSI_FLAG_FILTER_CHANGED
))
2020 i40e_sync_vsi_filters(pf
->vsi
[v
], true);
2025 * i40e_change_mtu - NDO callback to change the Maximum Transfer Unit
2026 * @netdev: network interface device structure
2027 * @new_mtu: new value for maximum frame size
2029 * Returns 0 on success, negative on failure
2031 static int i40e_change_mtu(struct net_device
*netdev
, int new_mtu
)
2033 struct i40e_netdev_priv
*np
= netdev_priv(netdev
);
2034 int max_frame
= new_mtu
+ ETH_HLEN
+ ETH_FCS_LEN
+ VLAN_HLEN
;
2035 struct i40e_vsi
*vsi
= np
->vsi
;
2037 /* MTU < 68 is an error and causes problems on some kernels */
2038 if ((new_mtu
< 68) || (max_frame
> I40E_MAX_RXBUFFER
))
2041 netdev_info(netdev
, "changing MTU from %d to %d\n",
2042 netdev
->mtu
, new_mtu
);
2043 netdev
->mtu
= new_mtu
;
2044 if (netif_running(netdev
))
2045 i40e_vsi_reinit_locked(vsi
);
2051 * i40e_ioctl - Access the hwtstamp interface
2052 * @netdev: network interface device structure
2053 * @ifr: interface request data
2054 * @cmd: ioctl command
2056 int i40e_ioctl(struct net_device
*netdev
, struct ifreq
*ifr
, int cmd
)
2058 struct i40e_netdev_priv
*np
= netdev_priv(netdev
);
2059 struct i40e_pf
*pf
= np
->vsi
->back
;
2063 return i40e_ptp_get_ts_config(pf
, ifr
);
2065 return i40e_ptp_set_ts_config(pf
, ifr
);
2072 * i40e_vlan_stripping_enable - Turn on vlan stripping for the VSI
2073 * @vsi: the vsi being adjusted
2075 void i40e_vlan_stripping_enable(struct i40e_vsi
*vsi
)
2077 struct i40e_vsi_context ctxt
;
2080 if ((vsi
->info
.valid_sections
&
2081 cpu_to_le16(I40E_AQ_VSI_PROP_VLAN_VALID
)) &&
2082 ((vsi
->info
.port_vlan_flags
& I40E_AQ_VSI_PVLAN_MODE_MASK
) == 0))
2083 return; /* already enabled */
2085 vsi
->info
.valid_sections
= cpu_to_le16(I40E_AQ_VSI_PROP_VLAN_VALID
);
2086 vsi
->info
.port_vlan_flags
= I40E_AQ_VSI_PVLAN_MODE_ALL
|
2087 I40E_AQ_VSI_PVLAN_EMOD_STR_BOTH
;
2089 ctxt
.seid
= vsi
->seid
;
2090 ctxt
.info
= vsi
->info
;
2091 ret
= i40e_aq_update_vsi_params(&vsi
->back
->hw
, &ctxt
, NULL
);
2093 dev_info(&vsi
->back
->pdev
->dev
,
2094 "update vlan stripping failed, err %s aq_err %s\n",
2095 i40e_stat_str(&vsi
->back
->hw
, ret
),
2096 i40e_aq_str(&vsi
->back
->hw
,
2097 vsi
->back
->hw
.aq
.asq_last_status
));
2102 * i40e_vlan_stripping_disable - Turn off vlan stripping for the VSI
2103 * @vsi: the vsi being adjusted
2105 void i40e_vlan_stripping_disable(struct i40e_vsi
*vsi
)
2107 struct i40e_vsi_context ctxt
;
2110 if ((vsi
->info
.valid_sections
&
2111 cpu_to_le16(I40E_AQ_VSI_PROP_VLAN_VALID
)) &&
2112 ((vsi
->info
.port_vlan_flags
& I40E_AQ_VSI_PVLAN_EMOD_MASK
) ==
2113 I40E_AQ_VSI_PVLAN_EMOD_MASK
))
2114 return; /* already disabled */
2116 vsi
->info
.valid_sections
= cpu_to_le16(I40E_AQ_VSI_PROP_VLAN_VALID
);
2117 vsi
->info
.port_vlan_flags
= I40E_AQ_VSI_PVLAN_MODE_ALL
|
2118 I40E_AQ_VSI_PVLAN_EMOD_NOTHING
;
2120 ctxt
.seid
= vsi
->seid
;
2121 ctxt
.info
= vsi
->info
;
2122 ret
= i40e_aq_update_vsi_params(&vsi
->back
->hw
, &ctxt
, NULL
);
2124 dev_info(&vsi
->back
->pdev
->dev
,
2125 "update vlan stripping failed, err %s aq_err %s\n",
2126 i40e_stat_str(&vsi
->back
->hw
, ret
),
2127 i40e_aq_str(&vsi
->back
->hw
,
2128 vsi
->back
->hw
.aq
.asq_last_status
));
2133 * i40e_vlan_rx_register - Setup or shutdown vlan offload
2134 * @netdev: network interface to be adjusted
2135 * @features: netdev features to test if VLAN offload is enabled or not
2137 static void i40e_vlan_rx_register(struct net_device
*netdev
, u32 features
)
2139 struct i40e_netdev_priv
*np
= netdev_priv(netdev
);
2140 struct i40e_vsi
*vsi
= np
->vsi
;
2142 if (features
& NETIF_F_HW_VLAN_CTAG_RX
)
2143 i40e_vlan_stripping_enable(vsi
);
2145 i40e_vlan_stripping_disable(vsi
);
2149 * i40e_vsi_add_vlan - Add vsi membership for given vlan
2150 * @vsi: the vsi being configured
2151 * @vid: vlan id to be added (0 = untagged only , -1 = any)
2153 int i40e_vsi_add_vlan(struct i40e_vsi
*vsi
, s16 vid
)
2155 struct i40e_mac_filter
*f
, *add_f
;
2156 bool is_netdev
, is_vf
;
2158 is_vf
= (vsi
->type
== I40E_VSI_SRIOV
);
2159 is_netdev
= !!(vsi
->netdev
);
2162 add_f
= i40e_add_filter(vsi
, vsi
->netdev
->dev_addr
, vid
,
2165 dev_info(&vsi
->back
->pdev
->dev
,
2166 "Could not add vlan filter %d for %pM\n",
2167 vid
, vsi
->netdev
->dev_addr
);
2172 list_for_each_entry(f
, &vsi
->mac_filter_list
, list
) {
2173 add_f
= i40e_add_filter(vsi
, f
->macaddr
, vid
, is_vf
, is_netdev
);
2175 dev_info(&vsi
->back
->pdev
->dev
,
2176 "Could not add vlan filter %d for %pM\n",
2182 /* Now if we add a vlan tag, make sure to check if it is the first
2183 * tag (i.e. a "tag" -1 does exist) and if so replace the -1 "tag"
2184 * with 0, so we now accept untagged and specified tagged traffic
2185 * (and not any taged and untagged)
2188 if (is_netdev
&& i40e_find_filter(vsi
, vsi
->netdev
->dev_addr
,
2190 is_vf
, is_netdev
)) {
2191 i40e_del_filter(vsi
, vsi
->netdev
->dev_addr
,
2192 I40E_VLAN_ANY
, is_vf
, is_netdev
);
2193 add_f
= i40e_add_filter(vsi
, vsi
->netdev
->dev_addr
, 0,
2196 dev_info(&vsi
->back
->pdev
->dev
,
2197 "Could not add filter 0 for %pM\n",
2198 vsi
->netdev
->dev_addr
);
2204 /* Do not assume that I40E_VLAN_ANY should be reset to VLAN 0 */
2205 if (vid
> 0 && !vsi
->info
.pvid
) {
2206 list_for_each_entry(f
, &vsi
->mac_filter_list
, list
) {
2207 if (i40e_find_filter(vsi
, f
->macaddr
, I40E_VLAN_ANY
,
2208 is_vf
, is_netdev
)) {
2209 i40e_del_filter(vsi
, f
->macaddr
, I40E_VLAN_ANY
,
2211 add_f
= i40e_add_filter(vsi
, f
->macaddr
,
2212 0, is_vf
, is_netdev
);
2214 dev_info(&vsi
->back
->pdev
->dev
,
2215 "Could not add filter 0 for %pM\n",
2223 if (test_bit(__I40E_DOWN
, &vsi
->back
->state
) ||
2224 test_bit(__I40E_RESET_RECOVERY_PENDING
, &vsi
->back
->state
))
2227 return i40e_sync_vsi_filters(vsi
, false);
2231 * i40e_vsi_kill_vlan - Remove vsi membership for given vlan
2232 * @vsi: the vsi being configured
2233 * @vid: vlan id to be removed (0 = untagged only , -1 = any)
2235 * Return: 0 on success or negative otherwise
2237 int i40e_vsi_kill_vlan(struct i40e_vsi
*vsi
, s16 vid
)
2239 struct net_device
*netdev
= vsi
->netdev
;
2240 struct i40e_mac_filter
*f
, *add_f
;
2241 bool is_vf
, is_netdev
;
2242 int filter_count
= 0;
2244 is_vf
= (vsi
->type
== I40E_VSI_SRIOV
);
2245 is_netdev
= !!(netdev
);
2248 i40e_del_filter(vsi
, netdev
->dev_addr
, vid
, is_vf
, is_netdev
);
2250 list_for_each_entry(f
, &vsi
->mac_filter_list
, list
)
2251 i40e_del_filter(vsi
, f
->macaddr
, vid
, is_vf
, is_netdev
);
2253 /* go through all the filters for this VSI and if there is only
2254 * vid == 0 it means there are no other filters, so vid 0 must
2255 * be replaced with -1. This signifies that we should from now
2256 * on accept any traffic (with any tag present, or untagged)
2258 list_for_each_entry(f
, &vsi
->mac_filter_list
, list
) {
2261 ether_addr_equal(netdev
->dev_addr
, f
->macaddr
))
2269 if (!filter_count
&& is_netdev
) {
2270 i40e_del_filter(vsi
, netdev
->dev_addr
, 0, is_vf
, is_netdev
);
2271 f
= i40e_add_filter(vsi
, netdev
->dev_addr
, I40E_VLAN_ANY
,
2274 dev_info(&vsi
->back
->pdev
->dev
,
2275 "Could not add filter %d for %pM\n",
2276 I40E_VLAN_ANY
, netdev
->dev_addr
);
2281 if (!filter_count
) {
2282 list_for_each_entry(f
, &vsi
->mac_filter_list
, list
) {
2283 i40e_del_filter(vsi
, f
->macaddr
, 0, is_vf
, is_netdev
);
2284 add_f
= i40e_add_filter(vsi
, f
->macaddr
, I40E_VLAN_ANY
,
2287 dev_info(&vsi
->back
->pdev
->dev
,
2288 "Could not add filter %d for %pM\n",
2289 I40E_VLAN_ANY
, f
->macaddr
);
2295 if (test_bit(__I40E_DOWN
, &vsi
->back
->state
) ||
2296 test_bit(__I40E_RESET_RECOVERY_PENDING
, &vsi
->back
->state
))
2299 return i40e_sync_vsi_filters(vsi
, false);
2303 * i40e_vlan_rx_add_vid - Add a vlan id filter to HW offload
2304 * @netdev: network interface to be adjusted
2305 * @vid: vlan id to be added
2307 * net_device_ops implementation for adding vlan ids
2310 int i40e_vlan_rx_add_vid(struct net_device
*netdev
,
2311 __always_unused __be16 proto
, u16 vid
)
2313 static int i40e_vlan_rx_add_vid(struct net_device
*netdev
,
2314 __always_unused __be16 proto
, u16 vid
)
2317 struct i40e_netdev_priv
*np
= netdev_priv(netdev
);
2318 struct i40e_vsi
*vsi
= np
->vsi
;
2324 netdev_info(netdev
, "adding %pM vid=%d\n", netdev
->dev_addr
, vid
);
2326 /* If the network stack called us with vid = 0 then
2327 * it is asking to receive priority tagged packets with
2328 * vlan id 0. Our HW receives them by default when configured
2329 * to receive untagged packets so there is no need to add an
2330 * extra filter for vlan 0 tagged packets.
2333 ret
= i40e_vsi_add_vlan(vsi
, vid
);
2335 if (!ret
&& (vid
< VLAN_N_VID
))
2336 set_bit(vid
, vsi
->active_vlans
);
2342 * i40e_vlan_rx_kill_vid - Remove a vlan id filter from HW offload
2343 * @netdev: network interface to be adjusted
2344 * @vid: vlan id to be removed
2346 * net_device_ops implementation for removing vlan ids
2349 int i40e_vlan_rx_kill_vid(struct net_device
*netdev
,
2350 __always_unused __be16 proto
, u16 vid
)
2352 static int i40e_vlan_rx_kill_vid(struct net_device
*netdev
,
2353 __always_unused __be16 proto
, u16 vid
)
2356 struct i40e_netdev_priv
*np
= netdev_priv(netdev
);
2357 struct i40e_vsi
*vsi
= np
->vsi
;
2359 netdev_info(netdev
, "removing %pM vid=%d\n", netdev
->dev_addr
, vid
);
2361 /* return code is ignored as there is nothing a user
2362 * can do about failure to remove and a log message was
2363 * already printed from the other function
2365 i40e_vsi_kill_vlan(vsi
, vid
);
2367 clear_bit(vid
, vsi
->active_vlans
);
2373 * i40e_restore_vlan - Reinstate vlans when vsi/netdev comes back up
2374 * @vsi: the vsi being brought back up
2376 static void i40e_restore_vlan(struct i40e_vsi
*vsi
)
2383 i40e_vlan_rx_register(vsi
->netdev
, vsi
->netdev
->features
);
2385 for_each_set_bit(vid
, vsi
->active_vlans
, VLAN_N_VID
)
2386 i40e_vlan_rx_add_vid(vsi
->netdev
, htons(ETH_P_8021Q
),
2391 * i40e_vsi_add_pvid - Add pvid for the VSI
2392 * @vsi: the vsi being adjusted
2393 * @vid: the vlan id to set as a PVID
2395 int i40e_vsi_add_pvid(struct i40e_vsi
*vsi
, u16 vid
)
2397 struct i40e_vsi_context ctxt
;
2400 vsi
->info
.valid_sections
= cpu_to_le16(I40E_AQ_VSI_PROP_VLAN_VALID
);
2401 vsi
->info
.pvid
= cpu_to_le16(vid
);
2402 vsi
->info
.port_vlan_flags
= I40E_AQ_VSI_PVLAN_MODE_TAGGED
|
2403 I40E_AQ_VSI_PVLAN_INSERT_PVID
|
2404 I40E_AQ_VSI_PVLAN_EMOD_STR
;
2406 ctxt
.seid
= vsi
->seid
;
2407 ctxt
.info
= vsi
->info
;
2408 ret
= i40e_aq_update_vsi_params(&vsi
->back
->hw
, &ctxt
, NULL
);
2410 dev_info(&vsi
->back
->pdev
->dev
,
2411 "add pvid failed, err %s aq_err %s\n",
2412 i40e_stat_str(&vsi
->back
->hw
, ret
),
2413 i40e_aq_str(&vsi
->back
->hw
,
2414 vsi
->back
->hw
.aq
.asq_last_status
));
2422 * i40e_vsi_remove_pvid - Remove the pvid from the VSI
2423 * @vsi: the vsi being adjusted
2425 * Just use the vlan_rx_register() service to put it back to normal
2427 void i40e_vsi_remove_pvid(struct i40e_vsi
*vsi
)
2429 i40e_vlan_stripping_disable(vsi
);
2435 * i40e_vsi_setup_tx_resources - Allocate VSI Tx queue resources
2436 * @vsi: ptr to the VSI
2438 * If this function returns with an error, then it's possible one or
2439 * more of the rings is populated (while the rest are not). It is the
2440 * callers duty to clean those orphaned rings.
2442 * Return 0 on success, negative on failure
2444 static int i40e_vsi_setup_tx_resources(struct i40e_vsi
*vsi
)
2448 for (i
= 0; i
< vsi
->num_queue_pairs
&& !err
; i
++)
2449 err
= i40e_setup_tx_descriptors(vsi
->tx_rings
[i
]);
2455 * i40e_vsi_free_tx_resources - Free Tx resources for VSI queues
2456 * @vsi: ptr to the VSI
2458 * Free VSI's transmit software resources
2460 static void i40e_vsi_free_tx_resources(struct i40e_vsi
*vsi
)
2467 for (i
= 0; i
< vsi
->num_queue_pairs
; i
++)
2468 if (vsi
->tx_rings
[i
] && vsi
->tx_rings
[i
]->desc
)
2469 i40e_free_tx_resources(vsi
->tx_rings
[i
]);
2473 * i40e_vsi_setup_rx_resources - Allocate VSI queues Rx resources
2474 * @vsi: ptr to the VSI
2476 * If this function returns with an error, then it's possible one or
2477 * more of the rings is populated (while the rest are not). It is the
2478 * callers duty to clean those orphaned rings.
2480 * Return 0 on success, negative on failure
2482 static int i40e_vsi_setup_rx_resources(struct i40e_vsi
*vsi
)
2486 for (i
= 0; i
< vsi
->num_queue_pairs
&& !err
; i
++)
2487 err
= i40e_setup_rx_descriptors(vsi
->rx_rings
[i
]);
2489 i40e_fcoe_setup_ddp_resources(vsi
);
2495 * i40e_vsi_free_rx_resources - Free Rx Resources for VSI queues
2496 * @vsi: ptr to the VSI
2498 * Free all receive software resources
2500 static void i40e_vsi_free_rx_resources(struct i40e_vsi
*vsi
)
2507 for (i
= 0; i
< vsi
->num_queue_pairs
; i
++)
2508 if (vsi
->rx_rings
[i
] && vsi
->rx_rings
[i
]->desc
)
2509 i40e_free_rx_resources(vsi
->rx_rings
[i
]);
2511 i40e_fcoe_free_ddp_resources(vsi
);
2516 * i40e_config_xps_tx_ring - Configure XPS for a Tx ring
2517 * @ring: The Tx ring to configure
2519 * This enables/disables XPS for a given Tx descriptor ring
2520 * based on the TCs enabled for the VSI that ring belongs to.
2522 static void i40e_config_xps_tx_ring(struct i40e_ring
*ring
)
2524 struct i40e_vsi
*vsi
= ring
->vsi
;
2527 if (!ring
->q_vector
|| !ring
->netdev
)
2530 /* Single TC mode enable XPS */
2531 if (vsi
->tc_config
.numtc
<= 1) {
2532 if (!test_and_set_bit(__I40E_TX_XPS_INIT_DONE
, &ring
->state
))
2533 netif_set_xps_queue(ring
->netdev
,
2534 &ring
->q_vector
->affinity_mask
,
2536 } else if (alloc_cpumask_var(&mask
, GFP_KERNEL
)) {
2537 /* Disable XPS to allow selection based on TC */
2538 bitmap_zero(cpumask_bits(mask
), nr_cpumask_bits
);
2539 netif_set_xps_queue(ring
->netdev
, mask
, ring
->queue_index
);
2540 free_cpumask_var(mask
);
2545 * i40e_configure_tx_ring - Configure a transmit ring context and rest
2546 * @ring: The Tx ring to configure
2548 * Configure the Tx descriptor ring in the HMC context.
2550 static int i40e_configure_tx_ring(struct i40e_ring
*ring
)
2552 struct i40e_vsi
*vsi
= ring
->vsi
;
2553 u16 pf_q
= vsi
->base_queue
+ ring
->queue_index
;
2554 struct i40e_hw
*hw
= &vsi
->back
->hw
;
2555 struct i40e_hmc_obj_txq tx_ctx
;
2556 i40e_status err
= 0;
2559 /* some ATR related tx ring init */
2560 if (vsi
->back
->flags
& I40E_FLAG_FD_ATR_ENABLED
) {
2561 ring
->atr_sample_rate
= vsi
->back
->atr_sample_rate
;
2562 ring
->atr_count
= 0;
2564 ring
->atr_sample_rate
= 0;
2568 i40e_config_xps_tx_ring(ring
);
2570 /* clear the context structure first */
2571 memset(&tx_ctx
, 0, sizeof(tx_ctx
));
2573 tx_ctx
.new_context
= 1;
2574 tx_ctx
.base
= (ring
->dma
/ 128);
2575 tx_ctx
.qlen
= ring
->count
;
2576 tx_ctx
.fd_ena
= !!(vsi
->back
->flags
& (I40E_FLAG_FD_SB_ENABLED
|
2577 I40E_FLAG_FD_ATR_ENABLED
));
2579 tx_ctx
.fc_ena
= (vsi
->type
== I40E_VSI_FCOE
);
2581 tx_ctx
.timesync_ena
= !!(vsi
->back
->flags
& I40E_FLAG_PTP
);
2582 /* FDIR VSI tx ring can still use RS bit and writebacks */
2583 if (vsi
->type
!= I40E_VSI_FDIR
)
2584 tx_ctx
.head_wb_ena
= 1;
2585 tx_ctx
.head_wb_addr
= ring
->dma
+
2586 (ring
->count
* sizeof(struct i40e_tx_desc
));
2588 /* As part of VSI creation/update, FW allocates certain
2589 * Tx arbitration queue sets for each TC enabled for
2590 * the VSI. The FW returns the handles to these queue
2591 * sets as part of the response buffer to Add VSI,
2592 * Update VSI, etc. AQ commands. It is expected that
2593 * these queue set handles be associated with the Tx
2594 * queues by the driver as part of the TX queue context
2595 * initialization. This has to be done regardless of
2596 * DCB as by default everything is mapped to TC0.
2598 tx_ctx
.rdylist
= le16_to_cpu(vsi
->info
.qs_handle
[ring
->dcb_tc
]);
2599 tx_ctx
.rdylist_act
= 0;
2601 /* clear the context in the HMC */
2602 err
= i40e_clear_lan_tx_queue_context(hw
, pf_q
);
2604 dev_info(&vsi
->back
->pdev
->dev
,
2605 "Failed to clear LAN Tx queue context on Tx ring %d (pf_q %d), error: %d\n",
2606 ring
->queue_index
, pf_q
, err
);
2610 /* set the context in the HMC */
2611 err
= i40e_set_lan_tx_queue_context(hw
, pf_q
, &tx_ctx
);
2613 dev_info(&vsi
->back
->pdev
->dev
,
2614 "Failed to set LAN Tx queue context on Tx ring %d (pf_q %d, error: %d\n",
2615 ring
->queue_index
, pf_q
, err
);
2619 /* Now associate this queue with this PCI function */
2620 if (vsi
->type
== I40E_VSI_VMDQ2
) {
2621 qtx_ctl
= I40E_QTX_CTL_VM_QUEUE
;
2622 qtx_ctl
|= ((vsi
->id
) << I40E_QTX_CTL_VFVM_INDX_SHIFT
) &
2623 I40E_QTX_CTL_VFVM_INDX_MASK
;
2625 qtx_ctl
= I40E_QTX_CTL_PF_QUEUE
;
2628 qtx_ctl
|= ((hw
->pf_id
<< I40E_QTX_CTL_PF_INDX_SHIFT
) &
2629 I40E_QTX_CTL_PF_INDX_MASK
);
2630 wr32(hw
, I40E_QTX_CTL(pf_q
), qtx_ctl
);
2633 /* cache tail off for easier writes later */
2634 ring
->tail
= hw
->hw_addr
+ I40E_QTX_TAIL(pf_q
);
2640 * i40e_configure_rx_ring - Configure a receive ring context
2641 * @ring: The Rx ring to configure
2643 * Configure the Rx descriptor ring in the HMC context.
2645 static int i40e_configure_rx_ring(struct i40e_ring
*ring
)
2647 struct i40e_vsi
*vsi
= ring
->vsi
;
2648 u32 chain_len
= vsi
->back
->hw
.func_caps
.rx_buf_chain_len
;
2649 u16 pf_q
= vsi
->base_queue
+ ring
->queue_index
;
2650 struct i40e_hw
*hw
= &vsi
->back
->hw
;
2651 struct i40e_hmc_obj_rxq rx_ctx
;
2652 i40e_status err
= 0;
2656 /* clear the context structure first */
2657 memset(&rx_ctx
, 0, sizeof(rx_ctx
));
2659 ring
->rx_buf_len
= vsi
->rx_buf_len
;
2660 ring
->rx_hdr_len
= vsi
->rx_hdr_len
;
2662 rx_ctx
.dbuff
= ring
->rx_buf_len
>> I40E_RXQ_CTX_DBUFF_SHIFT
;
2663 rx_ctx
.hbuff
= ring
->rx_hdr_len
>> I40E_RXQ_CTX_HBUFF_SHIFT
;
2665 rx_ctx
.base
= (ring
->dma
/ 128);
2666 rx_ctx
.qlen
= ring
->count
;
2668 if (vsi
->back
->flags
& I40E_FLAG_16BYTE_RX_DESC_ENABLED
) {
2669 set_ring_16byte_desc_enabled(ring
);
2675 rx_ctx
.dtype
= vsi
->dtype
;
2677 set_ring_ps_enabled(ring
);
2678 rx_ctx
.hsplit_0
= I40E_RX_SPLIT_L2
|
2680 I40E_RX_SPLIT_TCP_UDP
|
2683 rx_ctx
.hsplit_0
= 0;
2686 rx_ctx
.rxmax
= min_t(u16
, vsi
->max_frame
,
2687 (chain_len
* ring
->rx_buf_len
));
2688 if (hw
->revision_id
== 0)
2689 rx_ctx
.lrxqthresh
= 0;
2691 rx_ctx
.lrxqthresh
= 2;
2692 rx_ctx
.crcstrip
= 1;
2694 /* this controls whether VLAN is stripped from inner headers */
2697 rx_ctx
.fc_ena
= (vsi
->type
== I40E_VSI_FCOE
);
2699 /* set the prefena field to 1 because the manual says to */
2702 /* clear the context in the HMC */
2703 err
= i40e_clear_lan_rx_queue_context(hw
, pf_q
);
2705 dev_info(&vsi
->back
->pdev
->dev
,
2706 "Failed to clear LAN Rx queue context on Rx ring %d (pf_q %d), error: %d\n",
2707 ring
->queue_index
, pf_q
, err
);
2711 /* set the context in the HMC */
2712 err
= i40e_set_lan_rx_queue_context(hw
, pf_q
, &rx_ctx
);
2714 dev_info(&vsi
->back
->pdev
->dev
,
2715 "Failed to set LAN Rx queue context on Rx ring %d (pf_q %d), error: %d\n",
2716 ring
->queue_index
, pf_q
, err
);
2720 /* cache tail for quicker writes, and clear the reg before use */
2721 ring
->tail
= hw
->hw_addr
+ I40E_QRX_TAIL(pf_q
);
2722 writel(0, ring
->tail
);
2724 if (ring_is_ps_enabled(ring
)) {
2725 i40e_alloc_rx_headers(ring
);
2726 i40e_alloc_rx_buffers_ps(ring
, I40E_DESC_UNUSED(ring
));
2728 i40e_alloc_rx_buffers_1buf(ring
, I40E_DESC_UNUSED(ring
));
2735 * i40e_vsi_configure_tx - Configure the VSI for Tx
2736 * @vsi: VSI structure describing this set of rings and resources
2738 * Configure the Tx VSI for operation.
2740 static int i40e_vsi_configure_tx(struct i40e_vsi
*vsi
)
2745 for (i
= 0; (i
< vsi
->num_queue_pairs
) && !err
; i
++)
2746 err
= i40e_configure_tx_ring(vsi
->tx_rings
[i
]);
2752 * i40e_vsi_configure_rx - Configure the VSI for Rx
2753 * @vsi: the VSI being configured
2755 * Configure the Rx VSI for operation.
2757 static int i40e_vsi_configure_rx(struct i40e_vsi
*vsi
)
2762 if (vsi
->netdev
&& (vsi
->netdev
->mtu
> ETH_DATA_LEN
))
2763 vsi
->max_frame
= vsi
->netdev
->mtu
+ ETH_HLEN
2764 + ETH_FCS_LEN
+ VLAN_HLEN
;
2766 vsi
->max_frame
= I40E_RXBUFFER_2048
;
2768 /* figure out correct receive buffer length */
2769 switch (vsi
->back
->flags
& (I40E_FLAG_RX_1BUF_ENABLED
|
2770 I40E_FLAG_RX_PS_ENABLED
)) {
2771 case I40E_FLAG_RX_1BUF_ENABLED
:
2772 vsi
->rx_hdr_len
= 0;
2773 vsi
->rx_buf_len
= vsi
->max_frame
;
2774 vsi
->dtype
= I40E_RX_DTYPE_NO_SPLIT
;
2776 case I40E_FLAG_RX_PS_ENABLED
:
2777 vsi
->rx_hdr_len
= I40E_RX_HDR_SIZE
;
2778 vsi
->rx_buf_len
= I40E_RXBUFFER_2048
;
2779 vsi
->dtype
= I40E_RX_DTYPE_HEADER_SPLIT
;
2782 vsi
->rx_hdr_len
= I40E_RX_HDR_SIZE
;
2783 vsi
->rx_buf_len
= I40E_RXBUFFER_2048
;
2784 vsi
->dtype
= I40E_RX_DTYPE_SPLIT_ALWAYS
;
2789 /* setup rx buffer for FCoE */
2790 if ((vsi
->type
== I40E_VSI_FCOE
) &&
2791 (vsi
->back
->flags
& I40E_FLAG_FCOE_ENABLED
)) {
2792 vsi
->rx_hdr_len
= 0;
2793 vsi
->rx_buf_len
= I40E_RXBUFFER_3072
;
2794 vsi
->max_frame
= I40E_RXBUFFER_3072
;
2795 vsi
->dtype
= I40E_RX_DTYPE_NO_SPLIT
;
2798 #endif /* I40E_FCOE */
2799 /* round up for the chip's needs */
2800 vsi
->rx_hdr_len
= ALIGN(vsi
->rx_hdr_len
,
2801 BIT_ULL(I40E_RXQ_CTX_HBUFF_SHIFT
));
2802 vsi
->rx_buf_len
= ALIGN(vsi
->rx_buf_len
,
2803 BIT_ULL(I40E_RXQ_CTX_DBUFF_SHIFT
));
2805 /* set up individual rings */
2806 for (i
= 0; i
< vsi
->num_queue_pairs
&& !err
; i
++)
2807 err
= i40e_configure_rx_ring(vsi
->rx_rings
[i
]);
2813 * i40e_vsi_config_dcb_rings - Update rings to reflect DCB TC
2814 * @vsi: ptr to the VSI
2816 static void i40e_vsi_config_dcb_rings(struct i40e_vsi
*vsi
)
2818 struct i40e_ring
*tx_ring
, *rx_ring
;
2819 u16 qoffset
, qcount
;
2822 if (!(vsi
->back
->flags
& I40E_FLAG_DCB_ENABLED
)) {
2823 /* Reset the TC information */
2824 for (i
= 0; i
< vsi
->num_queue_pairs
; i
++) {
2825 rx_ring
= vsi
->rx_rings
[i
];
2826 tx_ring
= vsi
->tx_rings
[i
];
2827 rx_ring
->dcb_tc
= 0;
2828 tx_ring
->dcb_tc
= 0;
2832 for (n
= 0; n
< I40E_MAX_TRAFFIC_CLASS
; n
++) {
2833 if (!(vsi
->tc_config
.enabled_tc
& BIT_ULL(n
)))
2836 qoffset
= vsi
->tc_config
.tc_info
[n
].qoffset
;
2837 qcount
= vsi
->tc_config
.tc_info
[n
].qcount
;
2838 for (i
= qoffset
; i
< (qoffset
+ qcount
); i
++) {
2839 rx_ring
= vsi
->rx_rings
[i
];
2840 tx_ring
= vsi
->tx_rings
[i
];
2841 rx_ring
->dcb_tc
= n
;
2842 tx_ring
->dcb_tc
= n
;
2848 * i40e_set_vsi_rx_mode - Call set_rx_mode on a VSI
2849 * @vsi: ptr to the VSI
2851 static void i40e_set_vsi_rx_mode(struct i40e_vsi
*vsi
)
2854 i40e_set_rx_mode(vsi
->netdev
);
2858 * i40e_fdir_filter_restore - Restore the Sideband Flow Director filters
2859 * @vsi: Pointer to the targeted VSI
2861 * This function replays the hlist on the hw where all the SB Flow Director
2862 * filters were saved.
2864 static void i40e_fdir_filter_restore(struct i40e_vsi
*vsi
)
2866 struct i40e_fdir_filter
*filter
;
2867 struct i40e_pf
*pf
= vsi
->back
;
2868 struct hlist_node
*node
;
2870 if (!(pf
->flags
& I40E_FLAG_FD_SB_ENABLED
))
2873 hlist_for_each_entry_safe(filter
, node
,
2874 &pf
->fdir_filter_list
, fdir_node
) {
2875 i40e_add_del_fdir(vsi
, filter
, true);
2880 * i40e_vsi_configure - Set up the VSI for action
2881 * @vsi: the VSI being configured
2883 static int i40e_vsi_configure(struct i40e_vsi
*vsi
)
2887 i40e_set_vsi_rx_mode(vsi
);
2888 i40e_restore_vlan(vsi
);
2889 i40e_vsi_config_dcb_rings(vsi
);
2890 err
= i40e_vsi_configure_tx(vsi
);
2892 err
= i40e_vsi_configure_rx(vsi
);
2898 * i40e_vsi_configure_msix - MSIX mode Interrupt Config in the HW
2899 * @vsi: the VSI being configured
2901 static void i40e_vsi_configure_msix(struct i40e_vsi
*vsi
)
2903 struct i40e_pf
*pf
= vsi
->back
;
2904 struct i40e_q_vector
*q_vector
;
2905 struct i40e_hw
*hw
= &pf
->hw
;
2911 /* The interrupt indexing is offset by 1 in the PFINT_ITRn
2912 * and PFINT_LNKLSTn registers, e.g.:
2913 * PFINT_ITRn[0..n-1] gets msix-1..msix-n (qpair interrupts)
2915 qp
= vsi
->base_queue
;
2916 vector
= vsi
->base_vector
;
2917 for (i
= 0; i
< vsi
->num_q_vectors
; i
++, vector
++) {
2918 q_vector
= vsi
->q_vectors
[i
];
2919 q_vector
->rx
.itr
= ITR_TO_REG(vsi
->rx_itr_setting
);
2920 q_vector
->rx
.latency_range
= I40E_LOW_LATENCY
;
2921 wr32(hw
, I40E_PFINT_ITRN(I40E_RX_ITR
, vector
- 1),
2923 q_vector
->tx
.itr
= ITR_TO_REG(vsi
->tx_itr_setting
);
2924 q_vector
->tx
.latency_range
= I40E_LOW_LATENCY
;
2925 wr32(hw
, I40E_PFINT_ITRN(I40E_TX_ITR
, vector
- 1),
2928 /* Linked list for the queuepairs assigned to this vector */
2929 wr32(hw
, I40E_PFINT_LNKLSTN(vector
- 1), qp
);
2930 for (q
= 0; q
< q_vector
->num_ringpairs
; q
++) {
2931 val
= I40E_QINT_RQCTL_CAUSE_ENA_MASK
|
2932 (I40E_RX_ITR
<< I40E_QINT_RQCTL_ITR_INDX_SHIFT
) |
2933 (vector
<< I40E_QINT_RQCTL_MSIX_INDX_SHIFT
) |
2934 (qp
<< I40E_QINT_RQCTL_NEXTQ_INDX_SHIFT
)|
2936 << I40E_QINT_RQCTL_NEXTQ_TYPE_SHIFT
);
2938 wr32(hw
, I40E_QINT_RQCTL(qp
), val
);
2940 val
= I40E_QINT_TQCTL_CAUSE_ENA_MASK
|
2941 (I40E_TX_ITR
<< I40E_QINT_TQCTL_ITR_INDX_SHIFT
) |
2942 (vector
<< I40E_QINT_TQCTL_MSIX_INDX_SHIFT
) |
2943 ((qp
+1) << I40E_QINT_TQCTL_NEXTQ_INDX_SHIFT
)|
2945 << I40E_QINT_TQCTL_NEXTQ_TYPE_SHIFT
);
2947 /* Terminate the linked list */
2948 if (q
== (q_vector
->num_ringpairs
- 1))
2949 val
|= (I40E_QUEUE_END_OF_LIST
2950 << I40E_QINT_TQCTL_NEXTQ_INDX_SHIFT
);
2952 wr32(hw
, I40E_QINT_TQCTL(qp
), val
);
2961 * i40e_enable_misc_int_causes - enable the non-queue interrupts
2962 * @hw: ptr to the hardware info
2964 static void i40e_enable_misc_int_causes(struct i40e_pf
*pf
)
2966 struct i40e_hw
*hw
= &pf
->hw
;
2969 /* clear things first */
2970 wr32(hw
, I40E_PFINT_ICR0_ENA
, 0); /* disable all */
2971 rd32(hw
, I40E_PFINT_ICR0
); /* read to clear */
2973 val
= I40E_PFINT_ICR0_ENA_ECC_ERR_MASK
|
2974 I40E_PFINT_ICR0_ENA_MAL_DETECT_MASK
|
2975 I40E_PFINT_ICR0_ENA_GRST_MASK
|
2976 I40E_PFINT_ICR0_ENA_PCI_EXCEPTION_MASK
|
2977 I40E_PFINT_ICR0_ENA_GPIO_MASK
|
2978 I40E_PFINT_ICR0_ENA_HMC_ERR_MASK
|
2979 I40E_PFINT_ICR0_ENA_VFLR_MASK
|
2980 I40E_PFINT_ICR0_ENA_ADMINQ_MASK
;
2982 if (pf
->flags
& I40E_FLAG_IWARP_ENABLED
)
2983 val
|= I40E_PFINT_ICR0_ENA_PE_CRITERR_MASK
;
2985 if (pf
->flags
& I40E_FLAG_PTP
)
2986 val
|= I40E_PFINT_ICR0_ENA_TIMESYNC_MASK
;
2988 wr32(hw
, I40E_PFINT_ICR0_ENA
, val
);
2990 /* SW_ITR_IDX = 0, but don't change INTENA */
2991 wr32(hw
, I40E_PFINT_DYN_CTL0
, I40E_PFINT_DYN_CTL0_SW_ITR_INDX_MASK
|
2992 I40E_PFINT_DYN_CTL0_INTENA_MSK_MASK
);
2994 /* OTHER_ITR_IDX = 0 */
2995 wr32(hw
, I40E_PFINT_STAT_CTL0
, 0);
2999 * i40e_configure_msi_and_legacy - Legacy mode interrupt config in the HW
3000 * @vsi: the VSI being configured
3002 static void i40e_configure_msi_and_legacy(struct i40e_vsi
*vsi
)
3004 struct i40e_q_vector
*q_vector
= vsi
->q_vectors
[0];
3005 struct i40e_pf
*pf
= vsi
->back
;
3006 struct i40e_hw
*hw
= &pf
->hw
;
3009 /* set the ITR configuration */
3010 q_vector
->rx
.itr
= ITR_TO_REG(vsi
->rx_itr_setting
);
3011 q_vector
->rx
.latency_range
= I40E_LOW_LATENCY
;
3012 wr32(hw
, I40E_PFINT_ITR0(I40E_RX_ITR
), q_vector
->rx
.itr
);
3013 q_vector
->tx
.itr
= ITR_TO_REG(vsi
->tx_itr_setting
);
3014 q_vector
->tx
.latency_range
= I40E_LOW_LATENCY
;
3015 wr32(hw
, I40E_PFINT_ITR0(I40E_TX_ITR
), q_vector
->tx
.itr
);
3017 i40e_enable_misc_int_causes(pf
);
3019 /* FIRSTQ_INDX = 0, FIRSTQ_TYPE = 0 (rx) */
3020 wr32(hw
, I40E_PFINT_LNKLST0
, 0);
3022 /* Associate the queue pair to the vector and enable the queue int */
3023 val
= I40E_QINT_RQCTL_CAUSE_ENA_MASK
|
3024 (I40E_RX_ITR
<< I40E_QINT_RQCTL_ITR_INDX_SHIFT
) |
3025 (I40E_QUEUE_TYPE_TX
<< I40E_QINT_TQCTL_NEXTQ_TYPE_SHIFT
);
3027 wr32(hw
, I40E_QINT_RQCTL(0), val
);
3029 val
= I40E_QINT_TQCTL_CAUSE_ENA_MASK
|
3030 (I40E_TX_ITR
<< I40E_QINT_TQCTL_ITR_INDX_SHIFT
) |
3031 (I40E_QUEUE_END_OF_LIST
<< I40E_QINT_TQCTL_NEXTQ_INDX_SHIFT
);
3033 wr32(hw
, I40E_QINT_TQCTL(0), val
);
3038 * i40e_irq_dynamic_disable_icr0 - Disable default interrupt generation for icr0
3039 * @pf: board private structure
3041 void i40e_irq_dynamic_disable_icr0(struct i40e_pf
*pf
)
3043 struct i40e_hw
*hw
= &pf
->hw
;
3045 wr32(hw
, I40E_PFINT_DYN_CTL0
,
3046 I40E_ITR_NONE
<< I40E_PFINT_DYN_CTLN_ITR_INDX_SHIFT
);
3051 * i40e_irq_dynamic_enable_icr0 - Enable default interrupt generation for icr0
3052 * @pf: board private structure
3054 void i40e_irq_dynamic_enable_icr0(struct i40e_pf
*pf
)
3056 struct i40e_hw
*hw
= &pf
->hw
;
3059 val
= I40E_PFINT_DYN_CTL0_INTENA_MASK
|
3060 I40E_PFINT_DYN_CTL0_CLEARPBA_MASK
|
3061 (I40E_ITR_NONE
<< I40E_PFINT_DYN_CTL0_ITR_INDX_SHIFT
);
3063 wr32(hw
, I40E_PFINT_DYN_CTL0
, val
);
3068 * i40e_irq_dynamic_enable - Enable default interrupt generation settings
3069 * @vsi: pointer to a vsi
3070 * @vector: enable a particular Hw Interrupt vector, without base_vector
3072 void i40e_irq_dynamic_enable(struct i40e_vsi
*vsi
, int vector
)
3074 struct i40e_pf
*pf
= vsi
->back
;
3075 struct i40e_hw
*hw
= &pf
->hw
;
3078 val
= I40E_PFINT_DYN_CTLN_INTENA_MASK
|
3079 I40E_PFINT_DYN_CTLN_CLEARPBA_MASK
|
3080 (I40E_ITR_NONE
<< I40E_PFINT_DYN_CTLN_ITR_INDX_SHIFT
);
3081 wr32(hw
, I40E_PFINT_DYN_CTLN(vector
+ vsi
->base_vector
- 1), val
);
3082 /* skip the flush */
3086 * i40e_irq_dynamic_disable - Disable default interrupt generation settings
3087 * @vsi: pointer to a vsi
3088 * @vector: disable a particular Hw Interrupt vector
3090 void i40e_irq_dynamic_disable(struct i40e_vsi
*vsi
, int vector
)
3092 struct i40e_pf
*pf
= vsi
->back
;
3093 struct i40e_hw
*hw
= &pf
->hw
;
3096 val
= I40E_ITR_NONE
<< I40E_PFINT_DYN_CTLN_ITR_INDX_SHIFT
;
3097 wr32(hw
, I40E_PFINT_DYN_CTLN(vector
- 1), val
);
3102 * i40e_msix_clean_rings - MSIX mode Interrupt Handler
3103 * @irq: interrupt number
3104 * @data: pointer to a q_vector
3106 static irqreturn_t
i40e_msix_clean_rings(int irq
, void *data
)
3108 struct i40e_q_vector
*q_vector
= data
;
3110 if (!q_vector
->tx
.ring
&& !q_vector
->rx
.ring
)
3113 napi_schedule(&q_vector
->napi
);
3119 * i40e_vsi_request_irq_msix - Initialize MSI-X interrupts
3120 * @vsi: the VSI being configured
3121 * @basename: name for the vector
3123 * Allocates MSI-X vectors and requests interrupts from the kernel.
3125 static int i40e_vsi_request_irq_msix(struct i40e_vsi
*vsi
, char *basename
)
3127 int q_vectors
= vsi
->num_q_vectors
;
3128 struct i40e_pf
*pf
= vsi
->back
;
3129 int base
= vsi
->base_vector
;
3134 for (vector
= 0; vector
< q_vectors
; vector
++) {
3135 struct i40e_q_vector
*q_vector
= vsi
->q_vectors
[vector
];
3137 if (q_vector
->tx
.ring
&& q_vector
->rx
.ring
) {
3138 snprintf(q_vector
->name
, sizeof(q_vector
->name
) - 1,
3139 "%s-%s-%d", basename
, "TxRx", rx_int_idx
++);
3141 } else if (q_vector
->rx
.ring
) {
3142 snprintf(q_vector
->name
, sizeof(q_vector
->name
) - 1,
3143 "%s-%s-%d", basename
, "rx", rx_int_idx
++);
3144 } else if (q_vector
->tx
.ring
) {
3145 snprintf(q_vector
->name
, sizeof(q_vector
->name
) - 1,
3146 "%s-%s-%d", basename
, "tx", tx_int_idx
++);
3148 /* skip this unused q_vector */
3151 err
= request_irq(pf
->msix_entries
[base
+ vector
].vector
,
3157 dev_info(&pf
->pdev
->dev
,
3158 "%s: request_irq failed, error: %d\n",
3160 goto free_queue_irqs
;
3162 /* assign the mask for this irq */
3163 irq_set_affinity_hint(pf
->msix_entries
[base
+ vector
].vector
,
3164 &q_vector
->affinity_mask
);
3167 vsi
->irqs_ready
= true;
3173 irq_set_affinity_hint(pf
->msix_entries
[base
+ vector
].vector
,
3175 free_irq(pf
->msix_entries
[base
+ vector
].vector
,
3176 &(vsi
->q_vectors
[vector
]));
3182 * i40e_vsi_disable_irq - Mask off queue interrupt generation on the VSI
3183 * @vsi: the VSI being un-configured
3185 static void i40e_vsi_disable_irq(struct i40e_vsi
*vsi
)
3187 struct i40e_pf
*pf
= vsi
->back
;
3188 struct i40e_hw
*hw
= &pf
->hw
;
3189 int base
= vsi
->base_vector
;
3192 for (i
= 0; i
< vsi
->num_queue_pairs
; i
++) {
3193 wr32(hw
, I40E_QINT_TQCTL(vsi
->tx_rings
[i
]->reg_idx
), 0);
3194 wr32(hw
, I40E_QINT_RQCTL(vsi
->rx_rings
[i
]->reg_idx
), 0);
3197 if (pf
->flags
& I40E_FLAG_MSIX_ENABLED
) {
3198 for (i
= vsi
->base_vector
;
3199 i
< (vsi
->num_q_vectors
+ vsi
->base_vector
); i
++)
3200 wr32(hw
, I40E_PFINT_DYN_CTLN(i
- 1), 0);
3203 for (i
= 0; i
< vsi
->num_q_vectors
; i
++)
3204 synchronize_irq(pf
->msix_entries
[i
+ base
].vector
);
3206 /* Legacy and MSI mode - this stops all interrupt handling */
3207 wr32(hw
, I40E_PFINT_ICR0_ENA
, 0);
3208 wr32(hw
, I40E_PFINT_DYN_CTL0
, 0);
3210 synchronize_irq(pf
->pdev
->irq
);
3215 * i40e_vsi_enable_irq - Enable IRQ for the given VSI
3216 * @vsi: the VSI being configured
3218 static int i40e_vsi_enable_irq(struct i40e_vsi
*vsi
)
3220 struct i40e_pf
*pf
= vsi
->back
;
3223 if (pf
->flags
& I40E_FLAG_MSIX_ENABLED
) {
3224 for (i
= 0; i
< vsi
->num_q_vectors
; i
++)
3225 i40e_irq_dynamic_enable(vsi
, i
);
3227 i40e_irq_dynamic_enable_icr0(pf
);
3230 i40e_flush(&pf
->hw
);
3235 * i40e_stop_misc_vector - Stop the vector that handles non-queue events
3236 * @pf: board private structure
3238 static void i40e_stop_misc_vector(struct i40e_pf
*pf
)
3241 wr32(&pf
->hw
, I40E_PFINT_ICR0_ENA
, 0);
3242 i40e_flush(&pf
->hw
);
3246 * i40e_intr - MSI/Legacy and non-queue interrupt handler
3247 * @irq: interrupt number
3248 * @data: pointer to a q_vector
3250 * This is the handler used for all MSI/Legacy interrupts, and deals
3251 * with both queue and non-queue interrupts. This is also used in
3252 * MSIX mode to handle the non-queue interrupts.
3254 static irqreturn_t
i40e_intr(int irq
, void *data
)
3256 struct i40e_pf
*pf
= (struct i40e_pf
*)data
;
3257 struct i40e_hw
*hw
= &pf
->hw
;
3258 irqreturn_t ret
= IRQ_NONE
;
3259 u32 icr0
, icr0_remaining
;
3262 icr0
= rd32(hw
, I40E_PFINT_ICR0
);
3263 ena_mask
= rd32(hw
, I40E_PFINT_ICR0_ENA
);
3265 /* if sharing a legacy IRQ, we might get called w/o an intr pending */
3266 if ((icr0
& I40E_PFINT_ICR0_INTEVENT_MASK
) == 0)
3269 /* if interrupt but no bits showing, must be SWINT */
3270 if (((icr0
& ~I40E_PFINT_ICR0_INTEVENT_MASK
) == 0) ||
3271 (icr0
& I40E_PFINT_ICR0_SWINT_MASK
))
3274 if ((pf
->flags
& I40E_FLAG_IWARP_ENABLED
) &&
3275 (ena_mask
& I40E_PFINT_ICR0_ENA_PE_CRITERR_MASK
)) {
3276 ena_mask
&= ~I40E_PFINT_ICR0_ENA_PE_CRITERR_MASK
;
3277 icr0
&= ~I40E_PFINT_ICR0_ENA_PE_CRITERR_MASK
;
3278 dev_info(&pf
->pdev
->dev
, "cleared PE_CRITERR\n");
3281 /* only q0 is used in MSI/Legacy mode, and none are used in MSIX */
3282 if (icr0
& I40E_PFINT_ICR0_QUEUE_0_MASK
) {
3284 /* temporarily disable queue cause for NAPI processing */
3285 u32 qval
= rd32(hw
, I40E_QINT_RQCTL(0));
3286 qval
&= ~I40E_QINT_RQCTL_CAUSE_ENA_MASK
;
3287 wr32(hw
, I40E_QINT_RQCTL(0), qval
);
3289 qval
= rd32(hw
, I40E_QINT_TQCTL(0));
3290 qval
&= ~I40E_QINT_TQCTL_CAUSE_ENA_MASK
;
3291 wr32(hw
, I40E_QINT_TQCTL(0), qval
);
3293 if (!test_bit(__I40E_DOWN
, &pf
->state
))
3294 napi_schedule(&pf
->vsi
[pf
->lan_vsi
]->q_vectors
[0]->napi
);
3297 if (icr0
& I40E_PFINT_ICR0_ADMINQ_MASK
) {
3298 ena_mask
&= ~I40E_PFINT_ICR0_ENA_ADMINQ_MASK
;
3299 set_bit(__I40E_ADMINQ_EVENT_PENDING
, &pf
->state
);
3302 if (icr0
& I40E_PFINT_ICR0_MAL_DETECT_MASK
) {
3303 ena_mask
&= ~I40E_PFINT_ICR0_ENA_MAL_DETECT_MASK
;
3304 set_bit(__I40E_MDD_EVENT_PENDING
, &pf
->state
);
3307 if (icr0
& I40E_PFINT_ICR0_VFLR_MASK
) {
3308 ena_mask
&= ~I40E_PFINT_ICR0_ENA_VFLR_MASK
;
3309 set_bit(__I40E_VFLR_EVENT_PENDING
, &pf
->state
);
3312 if (icr0
& I40E_PFINT_ICR0_GRST_MASK
) {
3313 if (!test_bit(__I40E_RESET_RECOVERY_PENDING
, &pf
->state
))
3314 set_bit(__I40E_RESET_INTR_RECEIVED
, &pf
->state
);
3315 ena_mask
&= ~I40E_PFINT_ICR0_ENA_GRST_MASK
;
3316 val
= rd32(hw
, I40E_GLGEN_RSTAT
);
3317 val
= (val
& I40E_GLGEN_RSTAT_RESET_TYPE_MASK
)
3318 >> I40E_GLGEN_RSTAT_RESET_TYPE_SHIFT
;
3319 if (val
== I40E_RESET_CORER
) {
3321 } else if (val
== I40E_RESET_GLOBR
) {
3323 } else if (val
== I40E_RESET_EMPR
) {
3325 set_bit(__I40E_EMP_RESET_INTR_RECEIVED
, &pf
->state
);
3329 if (icr0
& I40E_PFINT_ICR0_HMC_ERR_MASK
) {
3330 icr0
&= ~I40E_PFINT_ICR0_HMC_ERR_MASK
;
3331 dev_info(&pf
->pdev
->dev
, "HMC error interrupt\n");
3332 dev_info(&pf
->pdev
->dev
, "HMC error info 0x%x, HMC error data 0x%x\n",
3333 rd32(hw
, I40E_PFHMC_ERRORINFO
),
3334 rd32(hw
, I40E_PFHMC_ERRORDATA
));
3337 if (icr0
& I40E_PFINT_ICR0_TIMESYNC_MASK
) {
3338 u32 prttsyn_stat
= rd32(hw
, I40E_PRTTSYN_STAT_0
);
3340 if (prttsyn_stat
& I40E_PRTTSYN_STAT_0_TXTIME_MASK
) {
3341 icr0
&= ~I40E_PFINT_ICR0_ENA_TIMESYNC_MASK
;
3342 i40e_ptp_tx_hwtstamp(pf
);
3346 /* If a critical error is pending we have no choice but to reset the
3348 * Report and mask out any remaining unexpected interrupts.
3350 icr0_remaining
= icr0
& ena_mask
;
3351 if (icr0_remaining
) {
3352 dev_info(&pf
->pdev
->dev
, "unhandled interrupt icr0=0x%08x\n",
3354 if ((icr0_remaining
& I40E_PFINT_ICR0_PE_CRITERR_MASK
) ||
3355 (icr0_remaining
& I40E_PFINT_ICR0_PCI_EXCEPTION_MASK
) ||
3356 (icr0_remaining
& I40E_PFINT_ICR0_ECC_ERR_MASK
)) {
3357 dev_info(&pf
->pdev
->dev
, "device will be reset\n");
3358 set_bit(__I40E_PF_RESET_REQUESTED
, &pf
->state
);
3359 i40e_service_event_schedule(pf
);
3361 ena_mask
&= ~icr0_remaining
;
3366 /* re-enable interrupt causes */
3367 wr32(hw
, I40E_PFINT_ICR0_ENA
, ena_mask
);
3368 if (!test_bit(__I40E_DOWN
, &pf
->state
)) {
3369 i40e_service_event_schedule(pf
);
3370 i40e_irq_dynamic_enable_icr0(pf
);
3377 * i40e_clean_fdir_tx_irq - Reclaim resources after transmit completes
3378 * @tx_ring: tx ring to clean
3379 * @budget: how many cleans we're allowed
3381 * Returns true if there's any budget left (e.g. the clean is finished)
3383 static bool i40e_clean_fdir_tx_irq(struct i40e_ring
*tx_ring
, int budget
)
3385 struct i40e_vsi
*vsi
= tx_ring
->vsi
;
3386 u16 i
= tx_ring
->next_to_clean
;
3387 struct i40e_tx_buffer
*tx_buf
;
3388 struct i40e_tx_desc
*tx_desc
;
3390 tx_buf
= &tx_ring
->tx_bi
[i
];
3391 tx_desc
= I40E_TX_DESC(tx_ring
, i
);
3392 i
-= tx_ring
->count
;
3395 struct i40e_tx_desc
*eop_desc
= tx_buf
->next_to_watch
;
3397 /* if next_to_watch is not set then there is no work pending */
3401 /* prevent any other reads prior to eop_desc */
3402 read_barrier_depends();
3404 /* if the descriptor isn't done, no work yet to do */
3405 if (!(eop_desc
->cmd_type_offset_bsz
&
3406 cpu_to_le64(I40E_TX_DESC_DTYPE_DESC_DONE
)))
3409 /* clear next_to_watch to prevent false hangs */
3410 tx_buf
->next_to_watch
= NULL
;
3412 tx_desc
->buffer_addr
= 0;
3413 tx_desc
->cmd_type_offset_bsz
= 0;
3414 /* move past filter desc */
3419 i
-= tx_ring
->count
;
3420 tx_buf
= tx_ring
->tx_bi
;
3421 tx_desc
= I40E_TX_DESC(tx_ring
, 0);
3423 /* unmap skb header data */
3424 dma_unmap_single(tx_ring
->dev
,
3425 dma_unmap_addr(tx_buf
, dma
),
3426 dma_unmap_len(tx_buf
, len
),
3428 if (tx_buf
->tx_flags
& I40E_TX_FLAGS_FD_SB
)
3429 kfree(tx_buf
->raw_buf
);
3431 tx_buf
->raw_buf
= NULL
;
3432 tx_buf
->tx_flags
= 0;
3433 tx_buf
->next_to_watch
= NULL
;
3434 dma_unmap_len_set(tx_buf
, len
, 0);
3435 tx_desc
->buffer_addr
= 0;
3436 tx_desc
->cmd_type_offset_bsz
= 0;
3438 /* move us past the eop_desc for start of next FD desc */
3443 i
-= tx_ring
->count
;
3444 tx_buf
= tx_ring
->tx_bi
;
3445 tx_desc
= I40E_TX_DESC(tx_ring
, 0);
3448 /* update budget accounting */
3450 } while (likely(budget
));
3452 i
+= tx_ring
->count
;
3453 tx_ring
->next_to_clean
= i
;
3455 if (vsi
->back
->flags
& I40E_FLAG_MSIX_ENABLED
) {
3456 i40e_irq_dynamic_enable(vsi
, tx_ring
->q_vector
->v_idx
);
3462 * i40e_fdir_clean_ring - Interrupt Handler for FDIR SB ring
3463 * @irq: interrupt number
3464 * @data: pointer to a q_vector
3466 static irqreturn_t
i40e_fdir_clean_ring(int irq
, void *data
)
3468 struct i40e_q_vector
*q_vector
= data
;
3469 struct i40e_vsi
*vsi
;
3471 if (!q_vector
->tx
.ring
)
3474 vsi
= q_vector
->tx
.ring
->vsi
;
3475 i40e_clean_fdir_tx_irq(q_vector
->tx
.ring
, vsi
->work_limit
);
3481 * i40e_map_vector_to_qp - Assigns the queue pair to the vector
3482 * @vsi: the VSI being configured
3483 * @v_idx: vector index
3484 * @qp_idx: queue pair index
3486 static void i40e_map_vector_to_qp(struct i40e_vsi
*vsi
, int v_idx
, int qp_idx
)
3488 struct i40e_q_vector
*q_vector
= vsi
->q_vectors
[v_idx
];
3489 struct i40e_ring
*tx_ring
= vsi
->tx_rings
[qp_idx
];
3490 struct i40e_ring
*rx_ring
= vsi
->rx_rings
[qp_idx
];
3492 tx_ring
->q_vector
= q_vector
;
3493 tx_ring
->next
= q_vector
->tx
.ring
;
3494 q_vector
->tx
.ring
= tx_ring
;
3495 q_vector
->tx
.count
++;
3497 rx_ring
->q_vector
= q_vector
;
3498 rx_ring
->next
= q_vector
->rx
.ring
;
3499 q_vector
->rx
.ring
= rx_ring
;
3500 q_vector
->rx
.count
++;
3504 * i40e_vsi_map_rings_to_vectors - Maps descriptor rings to vectors
3505 * @vsi: the VSI being configured
3507 * This function maps descriptor rings to the queue-specific vectors
3508 * we were allotted through the MSI-X enabling code. Ideally, we'd have
3509 * one vector per queue pair, but on a constrained vector budget, we
3510 * group the queue pairs as "efficiently" as possible.
3512 static void i40e_vsi_map_rings_to_vectors(struct i40e_vsi
*vsi
)
3514 int qp_remaining
= vsi
->num_queue_pairs
;
3515 int q_vectors
= vsi
->num_q_vectors
;
3520 /* If we don't have enough vectors for a 1-to-1 mapping, we'll have to
3521 * group them so there are multiple queues per vector.
3522 * It is also important to go through all the vectors available to be
3523 * sure that if we don't use all the vectors, that the remaining vectors
3524 * are cleared. This is especially important when decreasing the
3525 * number of queues in use.
3527 for (; v_start
< q_vectors
; v_start
++) {
3528 struct i40e_q_vector
*q_vector
= vsi
->q_vectors
[v_start
];
3530 num_ringpairs
= DIV_ROUND_UP(qp_remaining
, q_vectors
- v_start
);
3532 q_vector
->num_ringpairs
= num_ringpairs
;
3534 q_vector
->rx
.count
= 0;
3535 q_vector
->tx
.count
= 0;
3536 q_vector
->rx
.ring
= NULL
;
3537 q_vector
->tx
.ring
= NULL
;
3539 while (num_ringpairs
--) {
3540 i40e_map_vector_to_qp(vsi
, v_start
, qp_idx
);
3548 * i40e_vsi_request_irq - Request IRQ from the OS
3549 * @vsi: the VSI being configured
3550 * @basename: name for the vector
3552 static int i40e_vsi_request_irq(struct i40e_vsi
*vsi
, char *basename
)
3554 struct i40e_pf
*pf
= vsi
->back
;
3557 if (pf
->flags
& I40E_FLAG_MSIX_ENABLED
)
3558 err
= i40e_vsi_request_irq_msix(vsi
, basename
);
3559 else if (pf
->flags
& I40E_FLAG_MSI_ENABLED
)
3560 err
= request_irq(pf
->pdev
->irq
, i40e_intr
, 0,
3563 err
= request_irq(pf
->pdev
->irq
, i40e_intr
, IRQF_SHARED
,
3567 dev_info(&pf
->pdev
->dev
, "request_irq failed, Error %d\n", err
);
3572 #ifdef CONFIG_NET_POLL_CONTROLLER
3574 * i40e_netpoll - A Polling 'interrupt'handler
3575 * @netdev: network interface device structure
3577 * This is used by netconsole to send skbs without having to re-enable
3578 * interrupts. It's not called while the normal interrupt routine is executing.
3581 void i40e_netpoll(struct net_device
*netdev
)
3583 static void i40e_netpoll(struct net_device
*netdev
)
3586 struct i40e_netdev_priv
*np
= netdev_priv(netdev
);
3587 struct i40e_vsi
*vsi
= np
->vsi
;
3588 struct i40e_pf
*pf
= vsi
->back
;
3591 /* if interface is down do nothing */
3592 if (test_bit(__I40E_DOWN
, &vsi
->state
))
3595 pf
->flags
|= I40E_FLAG_IN_NETPOLL
;
3596 if (pf
->flags
& I40E_FLAG_MSIX_ENABLED
) {
3597 for (i
= 0; i
< vsi
->num_q_vectors
; i
++)
3598 i40e_msix_clean_rings(0, vsi
->q_vectors
[i
]);
3600 i40e_intr(pf
->pdev
->irq
, netdev
);
3602 pf
->flags
&= ~I40E_FLAG_IN_NETPOLL
;
3607 * i40e_pf_txq_wait - Wait for a PF's Tx queue to be enabled or disabled
3608 * @pf: the PF being configured
3609 * @pf_q: the PF queue
3610 * @enable: enable or disable state of the queue
3612 * This routine will wait for the given Tx queue of the PF to reach the
3613 * enabled or disabled state.
3614 * Returns -ETIMEDOUT in case of failing to reach the requested state after
3615 * multiple retries; else will return 0 in case of success.
3617 static int i40e_pf_txq_wait(struct i40e_pf
*pf
, int pf_q
, bool enable
)
3622 for (i
= 0; i
< I40E_QUEUE_WAIT_RETRY_LIMIT
; i
++) {
3623 tx_reg
= rd32(&pf
->hw
, I40E_QTX_ENA(pf_q
));
3624 if (enable
== !!(tx_reg
& I40E_QTX_ENA_QENA_STAT_MASK
))
3627 usleep_range(10, 20);
3629 if (i
>= I40E_QUEUE_WAIT_RETRY_LIMIT
)
3636 * i40e_vsi_control_tx - Start or stop a VSI's rings
3637 * @vsi: the VSI being configured
3638 * @enable: start or stop the rings
3640 static int i40e_vsi_control_tx(struct i40e_vsi
*vsi
, bool enable
)
3642 struct i40e_pf
*pf
= vsi
->back
;
3643 struct i40e_hw
*hw
= &pf
->hw
;
3644 int i
, j
, pf_q
, ret
= 0;
3647 pf_q
= vsi
->base_queue
;
3648 for (i
= 0; i
< vsi
->num_queue_pairs
; i
++, pf_q
++) {
3650 /* warn the TX unit of coming changes */
3651 i40e_pre_tx_queue_cfg(&pf
->hw
, pf_q
, enable
);
3653 usleep_range(10, 20);
3655 for (j
= 0; j
< 50; j
++) {
3656 tx_reg
= rd32(hw
, I40E_QTX_ENA(pf_q
));
3657 if (((tx_reg
>> I40E_QTX_ENA_QENA_REQ_SHIFT
) & 1) ==
3658 ((tx_reg
>> I40E_QTX_ENA_QENA_STAT_SHIFT
) & 1))
3660 usleep_range(1000, 2000);
3662 /* Skip if the queue is already in the requested state */
3663 if (enable
== !!(tx_reg
& I40E_QTX_ENA_QENA_STAT_MASK
))
3666 /* turn on/off the queue */
3668 wr32(hw
, I40E_QTX_HEAD(pf_q
), 0);
3669 tx_reg
|= I40E_QTX_ENA_QENA_REQ_MASK
;
3671 tx_reg
&= ~I40E_QTX_ENA_QENA_REQ_MASK
;
3674 wr32(hw
, I40E_QTX_ENA(pf_q
), tx_reg
);
3675 /* No waiting for the Tx queue to disable */
3676 if (!enable
&& test_bit(__I40E_PORT_TX_SUSPENDED
, &pf
->state
))
3679 /* wait for the change to finish */
3680 ret
= i40e_pf_txq_wait(pf
, pf_q
, enable
);
3682 dev_info(&pf
->pdev
->dev
,
3683 "%s: VSI seid %d Tx ring %d %sable timeout\n",
3684 __func__
, vsi
->seid
, pf_q
,
3685 (enable
? "en" : "dis"));
3690 if (hw
->revision_id
== 0)
3696 * i40e_pf_rxq_wait - Wait for a PF's Rx queue to be enabled or disabled
3697 * @pf: the PF being configured
3698 * @pf_q: the PF queue
3699 * @enable: enable or disable state of the queue
3701 * This routine will wait for the given Rx queue of the PF to reach the
3702 * enabled or disabled state.
3703 * Returns -ETIMEDOUT in case of failing to reach the requested state after
3704 * multiple retries; else will return 0 in case of success.
3706 static int i40e_pf_rxq_wait(struct i40e_pf
*pf
, int pf_q
, bool enable
)
3711 for (i
= 0; i
< I40E_QUEUE_WAIT_RETRY_LIMIT
; i
++) {
3712 rx_reg
= rd32(&pf
->hw
, I40E_QRX_ENA(pf_q
));
3713 if (enable
== !!(rx_reg
& I40E_QRX_ENA_QENA_STAT_MASK
))
3716 usleep_range(10, 20);
3718 if (i
>= I40E_QUEUE_WAIT_RETRY_LIMIT
)
3725 * i40e_vsi_control_rx - Start or stop a VSI's rings
3726 * @vsi: the VSI being configured
3727 * @enable: start or stop the rings
3729 static int i40e_vsi_control_rx(struct i40e_vsi
*vsi
, bool enable
)
3731 struct i40e_pf
*pf
= vsi
->back
;
3732 struct i40e_hw
*hw
= &pf
->hw
;
3733 int i
, j
, pf_q
, ret
= 0;
3736 pf_q
= vsi
->base_queue
;
3737 for (i
= 0; i
< vsi
->num_queue_pairs
; i
++, pf_q
++) {
3738 for (j
= 0; j
< 50; j
++) {
3739 rx_reg
= rd32(hw
, I40E_QRX_ENA(pf_q
));
3740 if (((rx_reg
>> I40E_QRX_ENA_QENA_REQ_SHIFT
) & 1) ==
3741 ((rx_reg
>> I40E_QRX_ENA_QENA_STAT_SHIFT
) & 1))
3743 usleep_range(1000, 2000);
3746 /* Skip if the queue is already in the requested state */
3747 if (enable
== !!(rx_reg
& I40E_QRX_ENA_QENA_STAT_MASK
))
3750 /* turn on/off the queue */
3752 rx_reg
|= I40E_QRX_ENA_QENA_REQ_MASK
;
3754 rx_reg
&= ~I40E_QRX_ENA_QENA_REQ_MASK
;
3755 wr32(hw
, I40E_QRX_ENA(pf_q
), rx_reg
);
3757 /* wait for the change to finish */
3758 ret
= i40e_pf_rxq_wait(pf
, pf_q
, enable
);
3760 dev_info(&pf
->pdev
->dev
,
3761 "%s: VSI seid %d Rx ring %d %sable timeout\n",
3762 __func__
, vsi
->seid
, pf_q
,
3763 (enable
? "en" : "dis"));
3772 * i40e_vsi_control_rings - Start or stop a VSI's rings
3773 * @vsi: the VSI being configured
3774 * @enable: start or stop the rings
3776 int i40e_vsi_control_rings(struct i40e_vsi
*vsi
, bool request
)
3780 /* do rx first for enable and last for disable */
3782 ret
= i40e_vsi_control_rx(vsi
, request
);
3785 ret
= i40e_vsi_control_tx(vsi
, request
);
3787 /* Ignore return value, we need to shutdown whatever we can */
3788 i40e_vsi_control_tx(vsi
, request
);
3789 i40e_vsi_control_rx(vsi
, request
);
3796 * i40e_vsi_free_irq - Free the irq association with the OS
3797 * @vsi: the VSI being configured
3799 static void i40e_vsi_free_irq(struct i40e_vsi
*vsi
)
3801 struct i40e_pf
*pf
= vsi
->back
;
3802 struct i40e_hw
*hw
= &pf
->hw
;
3803 int base
= vsi
->base_vector
;
3807 if (pf
->flags
& I40E_FLAG_MSIX_ENABLED
) {
3808 if (!vsi
->q_vectors
)
3811 if (!vsi
->irqs_ready
)
3814 vsi
->irqs_ready
= false;
3815 for (i
= 0; i
< vsi
->num_q_vectors
; i
++) {
3816 u16 vector
= i
+ base
;
3818 /* free only the irqs that were actually requested */
3819 if (!vsi
->q_vectors
[i
] ||
3820 !vsi
->q_vectors
[i
]->num_ringpairs
)
3823 /* clear the affinity_mask in the IRQ descriptor */
3824 irq_set_affinity_hint(pf
->msix_entries
[vector
].vector
,
3826 free_irq(pf
->msix_entries
[vector
].vector
,
3829 /* Tear down the interrupt queue link list
3831 * We know that they come in pairs and always
3832 * the Rx first, then the Tx. To clear the
3833 * link list, stick the EOL value into the
3834 * next_q field of the registers.
3836 val
= rd32(hw
, I40E_PFINT_LNKLSTN(vector
- 1));
3837 qp
= (val
& I40E_PFINT_LNKLSTN_FIRSTQ_INDX_MASK
)
3838 >> I40E_PFINT_LNKLSTN_FIRSTQ_INDX_SHIFT
;
3839 val
|= I40E_QUEUE_END_OF_LIST
3840 << I40E_PFINT_LNKLSTN_FIRSTQ_INDX_SHIFT
;
3841 wr32(hw
, I40E_PFINT_LNKLSTN(vector
- 1), val
);
3843 while (qp
!= I40E_QUEUE_END_OF_LIST
) {
3846 val
= rd32(hw
, I40E_QINT_RQCTL(qp
));
3848 val
&= ~(I40E_QINT_RQCTL_MSIX_INDX_MASK
|
3849 I40E_QINT_RQCTL_MSIX0_INDX_MASK
|
3850 I40E_QINT_RQCTL_CAUSE_ENA_MASK
|
3851 I40E_QINT_RQCTL_INTEVENT_MASK
);
3853 val
|= (I40E_QINT_RQCTL_ITR_INDX_MASK
|
3854 I40E_QINT_RQCTL_NEXTQ_INDX_MASK
);
3856 wr32(hw
, I40E_QINT_RQCTL(qp
), val
);
3858 val
= rd32(hw
, I40E_QINT_TQCTL(qp
));
3860 next
= (val
& I40E_QINT_TQCTL_NEXTQ_INDX_MASK
)
3861 >> I40E_QINT_TQCTL_NEXTQ_INDX_SHIFT
;
3863 val
&= ~(I40E_QINT_TQCTL_MSIX_INDX_MASK
|
3864 I40E_QINT_TQCTL_MSIX0_INDX_MASK
|
3865 I40E_QINT_TQCTL_CAUSE_ENA_MASK
|
3866 I40E_QINT_TQCTL_INTEVENT_MASK
);
3868 val
|= (I40E_QINT_TQCTL_ITR_INDX_MASK
|
3869 I40E_QINT_TQCTL_NEXTQ_INDX_MASK
);
3871 wr32(hw
, I40E_QINT_TQCTL(qp
), val
);
3876 free_irq(pf
->pdev
->irq
, pf
);
3878 val
= rd32(hw
, I40E_PFINT_LNKLST0
);
3879 qp
= (val
& I40E_PFINT_LNKLSTN_FIRSTQ_INDX_MASK
)
3880 >> I40E_PFINT_LNKLSTN_FIRSTQ_INDX_SHIFT
;
3881 val
|= I40E_QUEUE_END_OF_LIST
3882 << I40E_PFINT_LNKLST0_FIRSTQ_INDX_SHIFT
;
3883 wr32(hw
, I40E_PFINT_LNKLST0
, val
);
3885 val
= rd32(hw
, I40E_QINT_RQCTL(qp
));
3886 val
&= ~(I40E_QINT_RQCTL_MSIX_INDX_MASK
|
3887 I40E_QINT_RQCTL_MSIX0_INDX_MASK
|
3888 I40E_QINT_RQCTL_CAUSE_ENA_MASK
|
3889 I40E_QINT_RQCTL_INTEVENT_MASK
);
3891 val
|= (I40E_QINT_RQCTL_ITR_INDX_MASK
|
3892 I40E_QINT_RQCTL_NEXTQ_INDX_MASK
);
3894 wr32(hw
, I40E_QINT_RQCTL(qp
), val
);
3896 val
= rd32(hw
, I40E_QINT_TQCTL(qp
));
3898 val
&= ~(I40E_QINT_TQCTL_MSIX_INDX_MASK
|
3899 I40E_QINT_TQCTL_MSIX0_INDX_MASK
|
3900 I40E_QINT_TQCTL_CAUSE_ENA_MASK
|
3901 I40E_QINT_TQCTL_INTEVENT_MASK
);
3903 val
|= (I40E_QINT_TQCTL_ITR_INDX_MASK
|
3904 I40E_QINT_TQCTL_NEXTQ_INDX_MASK
);
3906 wr32(hw
, I40E_QINT_TQCTL(qp
), val
);
3911 * i40e_free_q_vector - Free memory allocated for specific interrupt vector
3912 * @vsi: the VSI being configured
3913 * @v_idx: Index of vector to be freed
3915 * This function frees the memory allocated to the q_vector. In addition if
3916 * NAPI is enabled it will delete any references to the NAPI struct prior
3917 * to freeing the q_vector.
3919 static void i40e_free_q_vector(struct i40e_vsi
*vsi
, int v_idx
)
3921 struct i40e_q_vector
*q_vector
= vsi
->q_vectors
[v_idx
];
3922 struct i40e_ring
*ring
;
3927 /* disassociate q_vector from rings */
3928 i40e_for_each_ring(ring
, q_vector
->tx
)
3929 ring
->q_vector
= NULL
;
3931 i40e_for_each_ring(ring
, q_vector
->rx
)
3932 ring
->q_vector
= NULL
;
3934 /* only VSI w/ an associated netdev is set up w/ NAPI */
3936 netif_napi_del(&q_vector
->napi
);
3938 vsi
->q_vectors
[v_idx
] = NULL
;
3940 kfree_rcu(q_vector
, rcu
);
3944 * i40e_vsi_free_q_vectors - Free memory allocated for interrupt vectors
3945 * @vsi: the VSI being un-configured
3947 * This frees the memory allocated to the q_vectors and
3948 * deletes references to the NAPI struct.
3950 static void i40e_vsi_free_q_vectors(struct i40e_vsi
*vsi
)
3954 for (v_idx
= 0; v_idx
< vsi
->num_q_vectors
; v_idx
++)
3955 i40e_free_q_vector(vsi
, v_idx
);
3959 * i40e_reset_interrupt_capability - Disable interrupt setup in OS
3960 * @pf: board private structure
3962 static void i40e_reset_interrupt_capability(struct i40e_pf
*pf
)
3964 /* If we're in Legacy mode, the interrupt was cleaned in vsi_close */
3965 if (pf
->flags
& I40E_FLAG_MSIX_ENABLED
) {
3966 pci_disable_msix(pf
->pdev
);
3967 kfree(pf
->msix_entries
);
3968 pf
->msix_entries
= NULL
;
3969 kfree(pf
->irq_pile
);
3970 pf
->irq_pile
= NULL
;
3971 } else if (pf
->flags
& I40E_FLAG_MSI_ENABLED
) {
3972 pci_disable_msi(pf
->pdev
);
3974 pf
->flags
&= ~(I40E_FLAG_MSIX_ENABLED
| I40E_FLAG_MSI_ENABLED
);
3978 * i40e_clear_interrupt_scheme - Clear the current interrupt scheme settings
3979 * @pf: board private structure
3981 * We go through and clear interrupt specific resources and reset the structure
3982 * to pre-load conditions
3984 static void i40e_clear_interrupt_scheme(struct i40e_pf
*pf
)
3988 i40e_stop_misc_vector(pf
);
3989 if (pf
->flags
& I40E_FLAG_MSIX_ENABLED
) {
3990 synchronize_irq(pf
->msix_entries
[0].vector
);
3991 free_irq(pf
->msix_entries
[0].vector
, pf
);
3994 i40e_put_lump(pf
->irq_pile
, 0, I40E_PILE_VALID_BIT
-1);
3995 for (i
= 0; i
< pf
->num_alloc_vsi
; i
++)
3997 i40e_vsi_free_q_vectors(pf
->vsi
[i
]);
3998 i40e_reset_interrupt_capability(pf
);
4002 * i40e_napi_enable_all - Enable NAPI for all q_vectors in the VSI
4003 * @vsi: the VSI being configured
4005 static void i40e_napi_enable_all(struct i40e_vsi
*vsi
)
4012 for (q_idx
= 0; q_idx
< vsi
->num_q_vectors
; q_idx
++)
4013 napi_enable(&vsi
->q_vectors
[q_idx
]->napi
);
4017 * i40e_napi_disable_all - Disable NAPI for all q_vectors in the VSI
4018 * @vsi: the VSI being configured
4020 static void i40e_napi_disable_all(struct i40e_vsi
*vsi
)
4027 for (q_idx
= 0; q_idx
< vsi
->num_q_vectors
; q_idx
++)
4028 napi_disable(&vsi
->q_vectors
[q_idx
]->napi
);
4032 * i40e_vsi_close - Shut down a VSI
4033 * @vsi: the vsi to be quelled
4035 static void i40e_vsi_close(struct i40e_vsi
*vsi
)
4037 if (!test_and_set_bit(__I40E_DOWN
, &vsi
->state
))
4039 i40e_vsi_free_irq(vsi
);
4040 i40e_vsi_free_tx_resources(vsi
);
4041 i40e_vsi_free_rx_resources(vsi
);
4042 vsi
->current_netdev_flags
= 0;
4046 * i40e_quiesce_vsi - Pause a given VSI
4047 * @vsi: the VSI being paused
4049 static void i40e_quiesce_vsi(struct i40e_vsi
*vsi
)
4051 if (test_bit(__I40E_DOWN
, &vsi
->state
))
4054 /* No need to disable FCoE VSI when Tx suspended */
4055 if ((test_bit(__I40E_PORT_TX_SUSPENDED
, &vsi
->back
->state
)) &&
4056 vsi
->type
== I40E_VSI_FCOE
) {
4057 dev_dbg(&vsi
->back
->pdev
->dev
,
4058 "%s: VSI seid %d skipping FCoE VSI disable\n",
4059 __func__
, vsi
->seid
);
4063 set_bit(__I40E_NEEDS_RESTART
, &vsi
->state
);
4064 if (vsi
->netdev
&& netif_running(vsi
->netdev
)) {
4065 vsi
->netdev
->netdev_ops
->ndo_stop(vsi
->netdev
);
4067 i40e_vsi_close(vsi
);
4072 * i40e_unquiesce_vsi - Resume a given VSI
4073 * @vsi: the VSI being resumed
4075 static void i40e_unquiesce_vsi(struct i40e_vsi
*vsi
)
4077 if (!test_bit(__I40E_NEEDS_RESTART
, &vsi
->state
))
4080 clear_bit(__I40E_NEEDS_RESTART
, &vsi
->state
);
4081 if (vsi
->netdev
&& netif_running(vsi
->netdev
))
4082 vsi
->netdev
->netdev_ops
->ndo_open(vsi
->netdev
);
4084 i40e_vsi_open(vsi
); /* this clears the DOWN bit */
4088 * i40e_pf_quiesce_all_vsi - Pause all VSIs on a PF
4091 static void i40e_pf_quiesce_all_vsi(struct i40e_pf
*pf
)
4095 for (v
= 0; v
< pf
->num_alloc_vsi
; v
++) {
4097 i40e_quiesce_vsi(pf
->vsi
[v
]);
4102 * i40e_pf_unquiesce_all_vsi - Resume all VSIs on a PF
4105 static void i40e_pf_unquiesce_all_vsi(struct i40e_pf
*pf
)
4109 for (v
= 0; v
< pf
->num_alloc_vsi
; v
++) {
4111 i40e_unquiesce_vsi(pf
->vsi
[v
]);
4115 #ifdef CONFIG_I40E_DCB
4117 * i40e_vsi_wait_txq_disabled - Wait for VSI's queues to be disabled
4118 * @vsi: the VSI being configured
4120 * This function waits for the given VSI's Tx queues to be disabled.
4122 static int i40e_vsi_wait_txq_disabled(struct i40e_vsi
*vsi
)
4124 struct i40e_pf
*pf
= vsi
->back
;
4127 pf_q
= vsi
->base_queue
;
4128 for (i
= 0; i
< vsi
->num_queue_pairs
; i
++, pf_q
++) {
4129 /* Check and wait for the disable status of the queue */
4130 ret
= i40e_pf_txq_wait(pf
, pf_q
, false);
4132 dev_info(&pf
->pdev
->dev
,
4133 "%s: VSI seid %d Tx ring %d disable timeout\n",
4134 __func__
, vsi
->seid
, pf_q
);
4143 * i40e_pf_wait_txq_disabled - Wait for all queues of PF VSIs to be disabled
4146 * This function waits for the Tx queues to be in disabled state for all the
4147 * VSIs that are managed by this PF.
4149 static int i40e_pf_wait_txq_disabled(struct i40e_pf
*pf
)
4153 for (v
= 0; v
< pf
->hw
.func_caps
.num_vsis
; v
++) {
4154 /* No need to wait for FCoE VSI queues */
4155 if (pf
->vsi
[v
] && pf
->vsi
[v
]->type
!= I40E_VSI_FCOE
) {
4156 ret
= i40e_vsi_wait_txq_disabled(pf
->vsi
[v
]);
4168 * i40e_detect_recover_hung_queue - Function to detect and recover hung_queue
4169 * @q_idx: TX queue number
4170 * @vsi: Pointer to VSI struct
4172 * This function checks specified queue for given VSI. Detects hung condition.
4173 * Sets hung bit since it is two step process. Before next run of service task
4174 * if napi_poll runs, it reset 'hung' bit for respective q_vector. If not,
4175 * hung condition remain unchanged and during subsequent run, this function
4176 * issues SW interrupt to recover from hung condition.
4178 static void i40e_detect_recover_hung_queue(int q_idx
, struct i40e_vsi
*vsi
)
4180 struct i40e_ring
*tx_ring
= NULL
;
4182 u32 head
, val
, tx_pending
;
4187 /* now that we have an index, find the tx_ring struct */
4188 for (i
= 0; i
< vsi
->num_queue_pairs
; i
++) {
4189 if (vsi
->tx_rings
[i
] && vsi
->tx_rings
[i
]->desc
) {
4190 if (q_idx
== vsi
->tx_rings
[i
]->queue_index
) {
4191 tx_ring
= vsi
->tx_rings
[i
];
4200 /* Read interrupt register */
4201 if (pf
->flags
& I40E_FLAG_MSIX_ENABLED
)
4203 I40E_PFINT_DYN_CTLN(tx_ring
->q_vector
->v_idx
+
4204 tx_ring
->vsi
->base_vector
- 1));
4206 val
= rd32(&pf
->hw
, I40E_PFINT_DYN_CTL0
);
4208 head
= i40e_get_head(tx_ring
);
4210 tx_pending
= i40e_get_tx_pending(tx_ring
);
4212 /* Interrupts are disabled and TX pending is non-zero,
4213 * trigger the SW interrupt (don't wait). Worst case
4214 * there will be one extra interrupt which may result
4215 * into not cleaning any queues because queues are cleaned.
4217 if (tx_pending
&& (!(val
& I40E_PFINT_DYN_CTLN_INTENA_MASK
)))
4218 i40e_force_wb(vsi
, tx_ring
->q_vector
);
4222 * i40e_detect_recover_hung - Function to detect and recover hung_queues
4223 * @pf: pointer to PF struct
4225 * LAN VSI has netdev and netdev has TX queues. This function is to check
4226 * each of those TX queues if they are hung, trigger recovery by issuing
4229 static void i40e_detect_recover_hung(struct i40e_pf
*pf
)
4231 struct net_device
*netdev
;
4232 struct i40e_vsi
*vsi
;
4235 /* Only for LAN VSI */
4236 vsi
= pf
->vsi
[pf
->lan_vsi
];
4241 /* Make sure, VSI state is not DOWN/RECOVERY_PENDING */
4242 if (test_bit(__I40E_DOWN
, &vsi
->back
->state
) ||
4243 test_bit(__I40E_RESET_RECOVERY_PENDING
, &vsi
->back
->state
))
4246 /* Make sure type is MAIN VSI */
4247 if (vsi
->type
!= I40E_VSI_MAIN
)
4250 netdev
= vsi
->netdev
;
4254 /* Bail out if netif_carrier is not OK */
4255 if (!netif_carrier_ok(netdev
))
4258 /* Go thru' TX queues for netdev */
4259 for (i
= 0; i
< netdev
->num_tx_queues
; i
++) {
4260 struct netdev_queue
*q
;
4262 q
= netdev_get_tx_queue(netdev
, i
);
4264 i40e_detect_recover_hung_queue(i
, vsi
);
4269 * i40e_get_iscsi_tc_map - Return TC map for iSCSI APP
4270 * @pf: pointer to PF
4272 * Get TC map for ISCSI PF type that will include iSCSI TC
4275 static u8
i40e_get_iscsi_tc_map(struct i40e_pf
*pf
)
4277 struct i40e_dcb_app_priority_table app
;
4278 struct i40e_hw
*hw
= &pf
->hw
;
4279 u8 enabled_tc
= 1; /* TC0 is always enabled */
4281 /* Get the iSCSI APP TLV */
4282 struct i40e_dcbx_config
*dcbcfg
= &hw
->local_dcbx_config
;
4284 for (i
= 0; i
< dcbcfg
->numapps
; i
++) {
4285 app
= dcbcfg
->app
[i
];
4286 if (app
.selector
== I40E_APP_SEL_TCPIP
&&
4287 app
.protocolid
== I40E_APP_PROTOID_ISCSI
) {
4288 tc
= dcbcfg
->etscfg
.prioritytable
[app
.priority
];
4289 enabled_tc
|= BIT_ULL(tc
);
4298 * i40e_dcb_get_num_tc - Get the number of TCs from DCBx config
4299 * @dcbcfg: the corresponding DCBx configuration structure
4301 * Return the number of TCs from given DCBx configuration
4303 static u8
i40e_dcb_get_num_tc(struct i40e_dcbx_config
*dcbcfg
)
4308 /* Scan the ETS Config Priority Table to find
4309 * traffic class enabled for a given priority
4310 * and use the traffic class index to get the
4311 * number of traffic classes enabled
4313 for (i
= 0; i
< I40E_MAX_USER_PRIORITY
; i
++) {
4314 if (dcbcfg
->etscfg
.prioritytable
[i
] > num_tc
)
4315 num_tc
= dcbcfg
->etscfg
.prioritytable
[i
];
4318 /* Traffic class index starts from zero so
4319 * increment to return the actual count
4325 * i40e_dcb_get_enabled_tc - Get enabled traffic classes
4326 * @dcbcfg: the corresponding DCBx configuration structure
4328 * Query the current DCB configuration and return the number of
4329 * traffic classes enabled from the given DCBX config
4331 static u8
i40e_dcb_get_enabled_tc(struct i40e_dcbx_config
*dcbcfg
)
4333 u8 num_tc
= i40e_dcb_get_num_tc(dcbcfg
);
4337 for (i
= 0; i
< num_tc
; i
++)
4338 enabled_tc
|= BIT(i
);
4344 * i40e_pf_get_num_tc - Get enabled traffic classes for PF
4345 * @pf: PF being queried
4347 * Return number of traffic classes enabled for the given PF
4349 static u8
i40e_pf_get_num_tc(struct i40e_pf
*pf
)
4351 struct i40e_hw
*hw
= &pf
->hw
;
4354 struct i40e_dcbx_config
*dcbcfg
= &hw
->local_dcbx_config
;
4356 /* If DCB is not enabled then always in single TC */
4357 if (!(pf
->flags
& I40E_FLAG_DCB_ENABLED
))
4360 /* SFP mode will be enabled for all TCs on port */
4361 if (!(pf
->flags
& I40E_FLAG_MFP_ENABLED
))
4362 return i40e_dcb_get_num_tc(dcbcfg
);
4364 /* MFP mode return count of enabled TCs for this PF */
4365 if (pf
->hw
.func_caps
.iscsi
)
4366 enabled_tc
= i40e_get_iscsi_tc_map(pf
);
4368 return 1; /* Only TC0 */
4370 /* At least have TC0 */
4371 enabled_tc
= (enabled_tc
? enabled_tc
: 0x1);
4372 for (i
= 0; i
< I40E_MAX_TRAFFIC_CLASS
; i
++) {
4373 if (enabled_tc
& BIT_ULL(i
))
4380 * i40e_pf_get_default_tc - Get bitmap for first enabled TC
4381 * @pf: PF being queried
4383 * Return a bitmap for first enabled traffic class for this PF.
4385 static u8
i40e_pf_get_default_tc(struct i40e_pf
*pf
)
4387 u8 enabled_tc
= pf
->hw
.func_caps
.enabled_tcmap
;
4391 return 0x1; /* TC0 */
4393 /* Find the first enabled TC */
4394 for (i
= 0; i
< I40E_MAX_TRAFFIC_CLASS
; i
++) {
4395 if (enabled_tc
& BIT_ULL(i
))
4403 * i40e_pf_get_pf_tc_map - Get bitmap for enabled traffic classes
4404 * @pf: PF being queried
4406 * Return a bitmap for enabled traffic classes for this PF.
4408 static u8
i40e_pf_get_tc_map(struct i40e_pf
*pf
)
4410 /* If DCB is not enabled for this PF then just return default TC */
4411 if (!(pf
->flags
& I40E_FLAG_DCB_ENABLED
))
4412 return i40e_pf_get_default_tc(pf
);
4414 /* SFP mode we want PF to be enabled for all TCs */
4415 if (!(pf
->flags
& I40E_FLAG_MFP_ENABLED
))
4416 return i40e_dcb_get_enabled_tc(&pf
->hw
.local_dcbx_config
);
4418 /* MFP enabled and iSCSI PF type */
4419 if (pf
->hw
.func_caps
.iscsi
)
4420 return i40e_get_iscsi_tc_map(pf
);
4422 return i40e_pf_get_default_tc(pf
);
4426 * i40e_vsi_get_bw_info - Query VSI BW Information
4427 * @vsi: the VSI being queried
4429 * Returns 0 on success, negative value on failure
4431 static int i40e_vsi_get_bw_info(struct i40e_vsi
*vsi
)
4433 struct i40e_aqc_query_vsi_ets_sla_config_resp bw_ets_config
= {0};
4434 struct i40e_aqc_query_vsi_bw_config_resp bw_config
= {0};
4435 struct i40e_pf
*pf
= vsi
->back
;
4436 struct i40e_hw
*hw
= &pf
->hw
;
4441 /* Get the VSI level BW configuration */
4442 ret
= i40e_aq_query_vsi_bw_config(hw
, vsi
->seid
, &bw_config
, NULL
);
4444 dev_info(&pf
->pdev
->dev
,
4445 "couldn't get PF vsi bw config, err %s aq_err %s\n",
4446 i40e_stat_str(&pf
->hw
, ret
),
4447 i40e_aq_str(&pf
->hw
, pf
->hw
.aq
.asq_last_status
));
4451 /* Get the VSI level BW configuration per TC */
4452 ret
= i40e_aq_query_vsi_ets_sla_config(hw
, vsi
->seid
, &bw_ets_config
,
4455 dev_info(&pf
->pdev
->dev
,
4456 "couldn't get PF vsi ets bw config, err %s aq_err %s\n",
4457 i40e_stat_str(&pf
->hw
, ret
),
4458 i40e_aq_str(&pf
->hw
, pf
->hw
.aq
.asq_last_status
));
4462 if (bw_config
.tc_valid_bits
!= bw_ets_config
.tc_valid_bits
) {
4463 dev_info(&pf
->pdev
->dev
,
4464 "Enabled TCs mismatch from querying VSI BW info 0x%08x 0x%08x\n",
4465 bw_config
.tc_valid_bits
,
4466 bw_ets_config
.tc_valid_bits
);
4467 /* Still continuing */
4470 vsi
->bw_limit
= le16_to_cpu(bw_config
.port_bw_limit
);
4471 vsi
->bw_max_quanta
= bw_config
.max_bw
;
4472 tc_bw_max
= le16_to_cpu(bw_ets_config
.tc_bw_max
[0]) |
4473 (le16_to_cpu(bw_ets_config
.tc_bw_max
[1]) << 16);
4474 for (i
= 0; i
< I40E_MAX_TRAFFIC_CLASS
; i
++) {
4475 vsi
->bw_ets_share_credits
[i
] = bw_ets_config
.share_credits
[i
];
4476 vsi
->bw_ets_limit_credits
[i
] =
4477 le16_to_cpu(bw_ets_config
.credits
[i
]);
4478 /* 3 bits out of 4 for each TC */
4479 vsi
->bw_ets_max_quanta
[i
] = (u8
)((tc_bw_max
>> (i
*4)) & 0x7);
4486 * i40e_vsi_configure_bw_alloc - Configure VSI BW allocation per TC
4487 * @vsi: the VSI being configured
4488 * @enabled_tc: TC bitmap
4489 * @bw_credits: BW shared credits per TC
4491 * Returns 0 on success, negative value on failure
4493 static int i40e_vsi_configure_bw_alloc(struct i40e_vsi
*vsi
, u8 enabled_tc
,
4496 struct i40e_aqc_configure_vsi_tc_bw_data bw_data
;
4500 bw_data
.tc_valid_bits
= enabled_tc
;
4501 for (i
= 0; i
< I40E_MAX_TRAFFIC_CLASS
; i
++)
4502 bw_data
.tc_bw_credits
[i
] = bw_share
[i
];
4504 ret
= i40e_aq_config_vsi_tc_bw(&vsi
->back
->hw
, vsi
->seid
, &bw_data
,
4507 dev_info(&vsi
->back
->pdev
->dev
,
4508 "AQ command Config VSI BW allocation per TC failed = %d\n",
4509 vsi
->back
->hw
.aq
.asq_last_status
);
4513 for (i
= 0; i
< I40E_MAX_TRAFFIC_CLASS
; i
++)
4514 vsi
->info
.qs_handle
[i
] = bw_data
.qs_handles
[i
];
4520 * i40e_vsi_config_netdev_tc - Setup the netdev TC configuration
4521 * @vsi: the VSI being configured
4522 * @enabled_tc: TC map to be enabled
4525 static void i40e_vsi_config_netdev_tc(struct i40e_vsi
*vsi
, u8 enabled_tc
)
4527 struct net_device
*netdev
= vsi
->netdev
;
4528 struct i40e_pf
*pf
= vsi
->back
;
4529 struct i40e_hw
*hw
= &pf
->hw
;
4532 struct i40e_dcbx_config
*dcbcfg
= &hw
->local_dcbx_config
;
4538 netdev_reset_tc(netdev
);
4542 /* Set up actual enabled TCs on the VSI */
4543 if (netdev_set_num_tc(netdev
, vsi
->tc_config
.numtc
))
4546 /* set per TC queues for the VSI */
4547 for (i
= 0; i
< I40E_MAX_TRAFFIC_CLASS
; i
++) {
4548 /* Only set TC queues for enabled tcs
4550 * e.g. For a VSI that has TC0 and TC3 enabled the
4551 * enabled_tc bitmap would be 0x00001001; the driver
4552 * will set the numtc for netdev as 2 that will be
4553 * referenced by the netdev layer as TC 0 and 1.
4555 if (vsi
->tc_config
.enabled_tc
& BIT_ULL(i
))
4556 netdev_set_tc_queue(netdev
,
4557 vsi
->tc_config
.tc_info
[i
].netdev_tc
,
4558 vsi
->tc_config
.tc_info
[i
].qcount
,
4559 vsi
->tc_config
.tc_info
[i
].qoffset
);
4562 /* Assign UP2TC map for the VSI */
4563 for (i
= 0; i
< I40E_MAX_USER_PRIORITY
; i
++) {
4564 /* Get the actual TC# for the UP */
4565 u8 ets_tc
= dcbcfg
->etscfg
.prioritytable
[i
];
4566 /* Get the mapped netdev TC# for the UP */
4567 netdev_tc
= vsi
->tc_config
.tc_info
[ets_tc
].netdev_tc
;
4568 netdev_set_prio_tc_map(netdev
, i
, netdev_tc
);
4573 * i40e_vsi_update_queue_map - Update our copy of VSi info with new queue map
4574 * @vsi: the VSI being configured
4575 * @ctxt: the ctxt buffer returned from AQ VSI update param command
4577 static void i40e_vsi_update_queue_map(struct i40e_vsi
*vsi
,
4578 struct i40e_vsi_context
*ctxt
)
4580 /* copy just the sections touched not the entire info
4581 * since not all sections are valid as returned by
4584 vsi
->info
.mapping_flags
= ctxt
->info
.mapping_flags
;
4585 memcpy(&vsi
->info
.queue_mapping
,
4586 &ctxt
->info
.queue_mapping
, sizeof(vsi
->info
.queue_mapping
));
4587 memcpy(&vsi
->info
.tc_mapping
, ctxt
->info
.tc_mapping
,
4588 sizeof(vsi
->info
.tc_mapping
));
4592 * i40e_vsi_config_tc - Configure VSI Tx Scheduler for given TC map
4593 * @vsi: VSI to be configured
4594 * @enabled_tc: TC bitmap
4596 * This configures a particular VSI for TCs that are mapped to the
4597 * given TC bitmap. It uses default bandwidth share for TCs across
4598 * VSIs to configure TC for a particular VSI.
4601 * It is expected that the VSI queues have been quisced before calling
4604 static int i40e_vsi_config_tc(struct i40e_vsi
*vsi
, u8 enabled_tc
)
4606 u8 bw_share
[I40E_MAX_TRAFFIC_CLASS
] = {0};
4607 struct i40e_vsi_context ctxt
;
4611 /* Check if enabled_tc is same as existing or new TCs */
4612 if (vsi
->tc_config
.enabled_tc
== enabled_tc
)
4615 /* Enable ETS TCs with equal BW Share for now across all VSIs */
4616 for (i
= 0; i
< I40E_MAX_TRAFFIC_CLASS
; i
++) {
4617 if (enabled_tc
& BIT_ULL(i
))
4621 ret
= i40e_vsi_configure_bw_alloc(vsi
, enabled_tc
, bw_share
);
4623 dev_info(&vsi
->back
->pdev
->dev
,
4624 "Failed configuring TC map %d for VSI %d\n",
4625 enabled_tc
, vsi
->seid
);
4629 /* Update Queue Pairs Mapping for currently enabled UPs */
4630 ctxt
.seid
= vsi
->seid
;
4631 ctxt
.pf_num
= vsi
->back
->hw
.pf_id
;
4633 ctxt
.uplink_seid
= vsi
->uplink_seid
;
4634 ctxt
.info
= vsi
->info
;
4635 i40e_vsi_setup_queue_map(vsi
, &ctxt
, enabled_tc
, false);
4637 /* Update the VSI after updating the VSI queue-mapping information */
4638 ret
= i40e_aq_update_vsi_params(&vsi
->back
->hw
, &ctxt
, NULL
);
4640 dev_info(&vsi
->back
->pdev
->dev
,
4641 "Update vsi tc config failed, err %s aq_err %s\n",
4642 i40e_stat_str(&vsi
->back
->hw
, ret
),
4643 i40e_aq_str(&vsi
->back
->hw
,
4644 vsi
->back
->hw
.aq
.asq_last_status
));
4647 /* update the local VSI info with updated queue map */
4648 i40e_vsi_update_queue_map(vsi
, &ctxt
);
4649 vsi
->info
.valid_sections
= 0;
4651 /* Update current VSI BW information */
4652 ret
= i40e_vsi_get_bw_info(vsi
);
4654 dev_info(&vsi
->back
->pdev
->dev
,
4655 "Failed updating vsi bw info, err %s aq_err %s\n",
4656 i40e_stat_str(&vsi
->back
->hw
, ret
),
4657 i40e_aq_str(&vsi
->back
->hw
,
4658 vsi
->back
->hw
.aq
.asq_last_status
));
4662 /* Update the netdev TC setup */
4663 i40e_vsi_config_netdev_tc(vsi
, enabled_tc
);
4669 * i40e_veb_config_tc - Configure TCs for given VEB
4671 * @enabled_tc: TC bitmap
4673 * Configures given TC bitmap for VEB (switching) element
4675 int i40e_veb_config_tc(struct i40e_veb
*veb
, u8 enabled_tc
)
4677 struct i40e_aqc_configure_switching_comp_bw_config_data bw_data
= {0};
4678 struct i40e_pf
*pf
= veb
->pf
;
4682 /* No TCs or already enabled TCs just return */
4683 if (!enabled_tc
|| veb
->enabled_tc
== enabled_tc
)
4686 bw_data
.tc_valid_bits
= enabled_tc
;
4687 /* bw_data.absolute_credits is not set (relative) */
4689 /* Enable ETS TCs with equal BW Share for now */
4690 for (i
= 0; i
< I40E_MAX_TRAFFIC_CLASS
; i
++) {
4691 if (enabled_tc
& BIT_ULL(i
))
4692 bw_data
.tc_bw_share_credits
[i
] = 1;
4695 ret
= i40e_aq_config_switch_comp_bw_config(&pf
->hw
, veb
->seid
,
4698 dev_info(&pf
->pdev
->dev
,
4699 "VEB bw config failed, err %s aq_err %s\n",
4700 i40e_stat_str(&pf
->hw
, ret
),
4701 i40e_aq_str(&pf
->hw
, pf
->hw
.aq
.asq_last_status
));
4705 /* Update the BW information */
4706 ret
= i40e_veb_get_bw_info(veb
);
4708 dev_info(&pf
->pdev
->dev
,
4709 "Failed getting veb bw config, err %s aq_err %s\n",
4710 i40e_stat_str(&pf
->hw
, ret
),
4711 i40e_aq_str(&pf
->hw
, pf
->hw
.aq
.asq_last_status
));
4718 #ifdef CONFIG_I40E_DCB
4720 * i40e_dcb_reconfigure - Reconfigure all VEBs and VSIs
4723 * Reconfigure VEB/VSIs on a given PF; it is assumed that
4724 * the caller would've quiesce all the VSIs before calling
4727 static void i40e_dcb_reconfigure(struct i40e_pf
*pf
)
4733 /* Enable the TCs available on PF to all VEBs */
4734 tc_map
= i40e_pf_get_tc_map(pf
);
4735 for (v
= 0; v
< I40E_MAX_VEB
; v
++) {
4738 ret
= i40e_veb_config_tc(pf
->veb
[v
], tc_map
);
4740 dev_info(&pf
->pdev
->dev
,
4741 "Failed configuring TC for VEB seid=%d\n",
4743 /* Will try to configure as many components */
4747 /* Update each VSI */
4748 for (v
= 0; v
< pf
->num_alloc_vsi
; v
++) {
4752 /* - Enable all TCs for the LAN VSI
4754 * - For FCoE VSI only enable the TC configured
4755 * as per the APP TLV
4757 * - For all others keep them at TC0 for now
4759 if (v
== pf
->lan_vsi
)
4760 tc_map
= i40e_pf_get_tc_map(pf
);
4762 tc_map
= i40e_pf_get_default_tc(pf
);
4764 if (pf
->vsi
[v
]->type
== I40E_VSI_FCOE
)
4765 tc_map
= i40e_get_fcoe_tc_map(pf
);
4766 #endif /* #ifdef I40E_FCOE */
4768 ret
= i40e_vsi_config_tc(pf
->vsi
[v
], tc_map
);
4770 dev_info(&pf
->pdev
->dev
,
4771 "Failed configuring TC for VSI seid=%d\n",
4773 /* Will try to configure as many components */
4775 /* Re-configure VSI vectors based on updated TC map */
4776 i40e_vsi_map_rings_to_vectors(pf
->vsi
[v
]);
4777 if (pf
->vsi
[v
]->netdev
)
4778 i40e_dcbnl_set_all(pf
->vsi
[v
]);
4784 * i40e_resume_port_tx - Resume port Tx
4787 * Resume a port's Tx and issue a PF reset in case of failure to
4790 static int i40e_resume_port_tx(struct i40e_pf
*pf
)
4792 struct i40e_hw
*hw
= &pf
->hw
;
4795 ret
= i40e_aq_resume_port_tx(hw
, NULL
);
4797 dev_info(&pf
->pdev
->dev
,
4798 "Resume Port Tx failed, err %s aq_err %s\n",
4799 i40e_stat_str(&pf
->hw
, ret
),
4800 i40e_aq_str(&pf
->hw
, pf
->hw
.aq
.asq_last_status
));
4801 /* Schedule PF reset to recover */
4802 set_bit(__I40E_PF_RESET_REQUESTED
, &pf
->state
);
4803 i40e_service_event_schedule(pf
);
4810 * i40e_init_pf_dcb - Initialize DCB configuration
4811 * @pf: PF being configured
4813 * Query the current DCB configuration and cache it
4814 * in the hardware structure
4816 static int i40e_init_pf_dcb(struct i40e_pf
*pf
)
4818 struct i40e_hw
*hw
= &pf
->hw
;
4821 /* Do not enable DCB for SW1 and SW2 images even if the FW is capable */
4822 if (((pf
->hw
.aq
.fw_maj_ver
== 4) && (pf
->hw
.aq
.fw_min_ver
< 33)) ||
4823 (pf
->hw
.aq
.fw_maj_ver
< 4))
4826 /* Get the initial DCB configuration */
4827 err
= i40e_init_dcb(hw
);
4829 /* Device/Function is not DCBX capable */
4830 if ((!hw
->func_caps
.dcb
) ||
4831 (hw
->dcbx_status
== I40E_DCBX_STATUS_DISABLED
)) {
4832 dev_info(&pf
->pdev
->dev
,
4833 "DCBX offload is not supported or is disabled for this PF.\n");
4835 if (pf
->flags
& I40E_FLAG_MFP_ENABLED
)
4839 /* When status is not DISABLED then DCBX in FW */
4840 pf
->dcbx_cap
= DCB_CAP_DCBX_LLD_MANAGED
|
4841 DCB_CAP_DCBX_VER_IEEE
;
4843 pf
->flags
|= I40E_FLAG_DCB_CAPABLE
;
4844 /* Enable DCB tagging only when more than one TC */
4845 if (i40e_dcb_get_num_tc(&hw
->local_dcbx_config
) > 1)
4846 pf
->flags
|= I40E_FLAG_DCB_ENABLED
;
4847 dev_dbg(&pf
->pdev
->dev
,
4848 "DCBX offload is supported for this PF.\n");
4851 dev_info(&pf
->pdev
->dev
,
4852 "Query for DCB configuration failed, err %s aq_err %s\n",
4853 i40e_stat_str(&pf
->hw
, err
),
4854 i40e_aq_str(&pf
->hw
, pf
->hw
.aq
.asq_last_status
));
4860 #endif /* CONFIG_I40E_DCB */
4861 #define SPEED_SIZE 14
4864 * i40e_print_link_message - print link up or down
4865 * @vsi: the VSI for which link needs a message
4867 static void i40e_print_link_message(struct i40e_vsi
*vsi
, bool isup
)
4869 char speed
[SPEED_SIZE
] = "Unknown";
4870 char fc
[FC_SIZE
] = "RX/TX";
4873 netdev_info(vsi
->netdev
, "NIC Link is Down\n");
4877 /* Warn user if link speed on NPAR enabled partition is not at
4880 if (vsi
->back
->hw
.func_caps
.npar_enable
&&
4881 (vsi
->back
->hw
.phy
.link_info
.link_speed
== I40E_LINK_SPEED_1GB
||
4882 vsi
->back
->hw
.phy
.link_info
.link_speed
== I40E_LINK_SPEED_100MB
))
4883 netdev_warn(vsi
->netdev
,
4884 "The partition detected link speed that is less than 10Gbps\n");
4886 switch (vsi
->back
->hw
.phy
.link_info
.link_speed
) {
4887 case I40E_LINK_SPEED_40GB
:
4888 strlcpy(speed
, "40 Gbps", SPEED_SIZE
);
4890 case I40E_LINK_SPEED_20GB
:
4891 strncpy(speed
, "20 Gbps", SPEED_SIZE
);
4893 case I40E_LINK_SPEED_10GB
:
4894 strlcpy(speed
, "10 Gbps", SPEED_SIZE
);
4896 case I40E_LINK_SPEED_1GB
:
4897 strlcpy(speed
, "1000 Mbps", SPEED_SIZE
);
4899 case I40E_LINK_SPEED_100MB
:
4900 strncpy(speed
, "100 Mbps", SPEED_SIZE
);
4906 switch (vsi
->back
->hw
.fc
.current_mode
) {
4908 strlcpy(fc
, "RX/TX", FC_SIZE
);
4910 case I40E_FC_TX_PAUSE
:
4911 strlcpy(fc
, "TX", FC_SIZE
);
4913 case I40E_FC_RX_PAUSE
:
4914 strlcpy(fc
, "RX", FC_SIZE
);
4917 strlcpy(fc
, "None", FC_SIZE
);
4921 netdev_info(vsi
->netdev
, "NIC Link is Up %s Full Duplex, Flow Control: %s\n",
4926 * i40e_up_complete - Finish the last steps of bringing up a connection
4927 * @vsi: the VSI being configured
4929 static int i40e_up_complete(struct i40e_vsi
*vsi
)
4931 struct i40e_pf
*pf
= vsi
->back
;
4934 if (pf
->flags
& I40E_FLAG_MSIX_ENABLED
)
4935 i40e_vsi_configure_msix(vsi
);
4937 i40e_configure_msi_and_legacy(vsi
);
4940 err
= i40e_vsi_control_rings(vsi
, true);
4944 clear_bit(__I40E_DOWN
, &vsi
->state
);
4945 i40e_napi_enable_all(vsi
);
4946 i40e_vsi_enable_irq(vsi
);
4948 if ((pf
->hw
.phy
.link_info
.link_info
& I40E_AQ_LINK_UP
) &&
4950 i40e_print_link_message(vsi
, true);
4951 netif_tx_start_all_queues(vsi
->netdev
);
4952 netif_carrier_on(vsi
->netdev
);
4953 } else if (vsi
->netdev
) {
4954 i40e_print_link_message(vsi
, false);
4955 /* need to check for qualified module here*/
4956 if ((pf
->hw
.phy
.link_info
.link_info
&
4957 I40E_AQ_MEDIA_AVAILABLE
) &&
4958 (!(pf
->hw
.phy
.link_info
.an_info
&
4959 I40E_AQ_QUALIFIED_MODULE
)))
4960 netdev_err(vsi
->netdev
,
4961 "the driver failed to link because an unqualified module was detected.");
4964 /* replay FDIR SB filters */
4965 if (vsi
->type
== I40E_VSI_FDIR
) {
4966 /* reset fd counters */
4967 pf
->fd_add_err
= pf
->fd_atr_cnt
= 0;
4968 if (pf
->fd_tcp_rule
> 0) {
4969 pf
->flags
&= ~I40E_FLAG_FD_ATR_ENABLED
;
4970 if (I40E_DEBUG_FD
& pf
->hw
.debug_mask
)
4971 dev_info(&pf
->pdev
->dev
, "Forcing ATR off, sideband rules for TCP/IPv4 exist\n");
4972 pf
->fd_tcp_rule
= 0;
4974 i40e_fdir_filter_restore(vsi
);
4976 i40e_service_event_schedule(pf
);
4982 * i40e_vsi_reinit_locked - Reset the VSI
4983 * @vsi: the VSI being configured
4985 * Rebuild the ring structs after some configuration
4986 * has changed, e.g. MTU size.
4988 static void i40e_vsi_reinit_locked(struct i40e_vsi
*vsi
)
4990 struct i40e_pf
*pf
= vsi
->back
;
4992 WARN_ON(in_interrupt());
4993 while (test_and_set_bit(__I40E_CONFIG_BUSY
, &pf
->state
))
4994 usleep_range(1000, 2000);
4997 /* Give a VF some time to respond to the reset. The
4998 * two second wait is based upon the watchdog cycle in
5001 if (vsi
->type
== I40E_VSI_SRIOV
)
5004 clear_bit(__I40E_CONFIG_BUSY
, &pf
->state
);
5008 * i40e_up - Bring the connection back up after being down
5009 * @vsi: the VSI being configured
5011 int i40e_up(struct i40e_vsi
*vsi
)
5015 err
= i40e_vsi_configure(vsi
);
5017 err
= i40e_up_complete(vsi
);
5023 * i40e_down - Shutdown the connection processing
5024 * @vsi: the VSI being stopped
5026 void i40e_down(struct i40e_vsi
*vsi
)
5030 /* It is assumed that the caller of this function
5031 * sets the vsi->state __I40E_DOWN bit.
5034 netif_carrier_off(vsi
->netdev
);
5035 netif_tx_disable(vsi
->netdev
);
5037 i40e_vsi_disable_irq(vsi
);
5038 i40e_vsi_control_rings(vsi
, false);
5039 i40e_napi_disable_all(vsi
);
5041 for (i
= 0; i
< vsi
->num_queue_pairs
; i
++) {
5042 i40e_clean_tx_ring(vsi
->tx_rings
[i
]);
5043 i40e_clean_rx_ring(vsi
->rx_rings
[i
]);
5048 * i40e_setup_tc - configure multiple traffic classes
5049 * @netdev: net device to configure
5050 * @tc: number of traffic classes to enable
5053 int i40e_setup_tc(struct net_device
*netdev
, u8 tc
)
5055 static int i40e_setup_tc(struct net_device
*netdev
, u8 tc
)
5058 struct i40e_netdev_priv
*np
= netdev_priv(netdev
);
5059 struct i40e_vsi
*vsi
= np
->vsi
;
5060 struct i40e_pf
*pf
= vsi
->back
;
5065 /* Check if DCB enabled to continue */
5066 if (!(pf
->flags
& I40E_FLAG_DCB_ENABLED
)) {
5067 netdev_info(netdev
, "DCB is not enabled for adapter\n");
5071 /* Check if MFP enabled */
5072 if (pf
->flags
& I40E_FLAG_MFP_ENABLED
) {
5073 netdev_info(netdev
, "Configuring TC not supported in MFP mode\n");
5077 /* Check whether tc count is within enabled limit */
5078 if (tc
> i40e_pf_get_num_tc(pf
)) {
5079 netdev_info(netdev
, "TC count greater than enabled on link for adapter\n");
5083 /* Generate TC map for number of tc requested */
5084 for (i
= 0; i
< tc
; i
++)
5085 enabled_tc
|= BIT_ULL(i
);
5087 /* Requesting same TC configuration as already enabled */
5088 if (enabled_tc
== vsi
->tc_config
.enabled_tc
)
5091 /* Quiesce VSI queues */
5092 i40e_quiesce_vsi(vsi
);
5094 /* Configure VSI for enabled TCs */
5095 ret
= i40e_vsi_config_tc(vsi
, enabled_tc
);
5097 netdev_info(netdev
, "Failed configuring TC for VSI seid=%d\n",
5103 i40e_unquiesce_vsi(vsi
);
5110 * i40e_open - Called when a network interface is made active
5111 * @netdev: network interface device structure
5113 * The open entry point is called when a network interface is made
5114 * active by the system (IFF_UP). At this point all resources needed
5115 * for transmit and receive operations are allocated, the interrupt
5116 * handler is registered with the OS, the netdev watchdog subtask is
5117 * enabled, and the stack is notified that the interface is ready.
5119 * Returns 0 on success, negative value on failure
5121 int i40e_open(struct net_device
*netdev
)
5123 struct i40e_netdev_priv
*np
= netdev_priv(netdev
);
5124 struct i40e_vsi
*vsi
= np
->vsi
;
5125 struct i40e_pf
*pf
= vsi
->back
;
5128 /* disallow open during test or if eeprom is broken */
5129 if (test_bit(__I40E_TESTING
, &pf
->state
) ||
5130 test_bit(__I40E_BAD_EEPROM
, &pf
->state
))
5133 netif_carrier_off(netdev
);
5135 err
= i40e_vsi_open(vsi
);
5139 /* configure global TSO hardware offload settings */
5140 wr32(&pf
->hw
, I40E_GLLAN_TSOMSK_F
, be32_to_cpu(TCP_FLAG_PSH
|
5141 TCP_FLAG_FIN
) >> 16);
5142 wr32(&pf
->hw
, I40E_GLLAN_TSOMSK_M
, be32_to_cpu(TCP_FLAG_PSH
|
5144 TCP_FLAG_CWR
) >> 16);
5145 wr32(&pf
->hw
, I40E_GLLAN_TSOMSK_L
, be32_to_cpu(TCP_FLAG_CWR
) >> 16);
5147 #ifdef CONFIG_I40E_VXLAN
5148 vxlan_get_rx_port(netdev
);
5156 * @vsi: the VSI to open
5158 * Finish initialization of the VSI.
5160 * Returns 0 on success, negative value on failure
5162 int i40e_vsi_open(struct i40e_vsi
*vsi
)
5164 struct i40e_pf
*pf
= vsi
->back
;
5165 char int_name
[I40E_INT_NAME_STR_LEN
];
5168 /* allocate descriptors */
5169 err
= i40e_vsi_setup_tx_resources(vsi
);
5172 err
= i40e_vsi_setup_rx_resources(vsi
);
5176 err
= i40e_vsi_configure(vsi
);
5181 snprintf(int_name
, sizeof(int_name
) - 1, "%s-%s",
5182 dev_driver_string(&pf
->pdev
->dev
), vsi
->netdev
->name
);
5183 err
= i40e_vsi_request_irq(vsi
, int_name
);
5187 /* Notify the stack of the actual queue counts. */
5188 err
= netif_set_real_num_tx_queues(vsi
->netdev
,
5189 vsi
->num_queue_pairs
);
5191 goto err_set_queues
;
5193 err
= netif_set_real_num_rx_queues(vsi
->netdev
,
5194 vsi
->num_queue_pairs
);
5196 goto err_set_queues
;
5198 } else if (vsi
->type
== I40E_VSI_FDIR
) {
5199 snprintf(int_name
, sizeof(int_name
) - 1, "%s-%s:fdir",
5200 dev_driver_string(&pf
->pdev
->dev
),
5201 dev_name(&pf
->pdev
->dev
));
5202 err
= i40e_vsi_request_irq(vsi
, int_name
);
5209 err
= i40e_up_complete(vsi
);
5211 goto err_up_complete
;
5218 i40e_vsi_free_irq(vsi
);
5220 i40e_vsi_free_rx_resources(vsi
);
5222 i40e_vsi_free_tx_resources(vsi
);
5223 if (vsi
== pf
->vsi
[pf
->lan_vsi
])
5224 i40e_do_reset(pf
, BIT_ULL(__I40E_PF_RESET_REQUESTED
));
5230 * i40e_fdir_filter_exit - Cleans up the Flow Director accounting
5231 * @pf: Pointer to PF
5233 * This function destroys the hlist where all the Flow Director
5234 * filters were saved.
5236 static void i40e_fdir_filter_exit(struct i40e_pf
*pf
)
5238 struct i40e_fdir_filter
*filter
;
5239 struct hlist_node
*node2
;
5241 hlist_for_each_entry_safe(filter
, node2
,
5242 &pf
->fdir_filter_list
, fdir_node
) {
5243 hlist_del(&filter
->fdir_node
);
5246 pf
->fdir_pf_active_filters
= 0;
5250 * i40e_close - Disables a network interface
5251 * @netdev: network interface device structure
5253 * The close entry point is called when an interface is de-activated
5254 * by the OS. The hardware is still under the driver's control, but
5255 * this netdev interface is disabled.
5257 * Returns 0, this is not allowed to fail
5260 int i40e_close(struct net_device
*netdev
)
5262 static int i40e_close(struct net_device
*netdev
)
5265 struct i40e_netdev_priv
*np
= netdev_priv(netdev
);
5266 struct i40e_vsi
*vsi
= np
->vsi
;
5268 i40e_vsi_close(vsi
);
5274 * i40e_do_reset - Start a PF or Core Reset sequence
5275 * @pf: board private structure
5276 * @reset_flags: which reset is requested
5278 * The essential difference in resets is that the PF Reset
5279 * doesn't clear the packet buffers, doesn't reset the PE
5280 * firmware, and doesn't bother the other PFs on the chip.
5282 void i40e_do_reset(struct i40e_pf
*pf
, u32 reset_flags
)
5286 WARN_ON(in_interrupt());
5288 if (i40e_check_asq_alive(&pf
->hw
))
5289 i40e_vc_notify_reset(pf
);
5291 /* do the biggest reset indicated */
5292 if (reset_flags
& BIT_ULL(__I40E_GLOBAL_RESET_REQUESTED
)) {
5294 /* Request a Global Reset
5296 * This will start the chip's countdown to the actual full
5297 * chip reset event, and a warning interrupt to be sent
5298 * to all PFs, including the requestor. Our handler
5299 * for the warning interrupt will deal with the shutdown
5300 * and recovery of the switch setup.
5302 dev_dbg(&pf
->pdev
->dev
, "GlobalR requested\n");
5303 val
= rd32(&pf
->hw
, I40E_GLGEN_RTRIG
);
5304 val
|= I40E_GLGEN_RTRIG_GLOBR_MASK
;
5305 wr32(&pf
->hw
, I40E_GLGEN_RTRIG
, val
);
5307 } else if (reset_flags
& BIT_ULL(__I40E_CORE_RESET_REQUESTED
)) {
5309 /* Request a Core Reset
5311 * Same as Global Reset, except does *not* include the MAC/PHY
5313 dev_dbg(&pf
->pdev
->dev
, "CoreR requested\n");
5314 val
= rd32(&pf
->hw
, I40E_GLGEN_RTRIG
);
5315 val
|= I40E_GLGEN_RTRIG_CORER_MASK
;
5316 wr32(&pf
->hw
, I40E_GLGEN_RTRIG
, val
);
5317 i40e_flush(&pf
->hw
);
5319 } else if (reset_flags
& BIT_ULL(__I40E_PF_RESET_REQUESTED
)) {
5321 /* Request a PF Reset
5323 * Resets only the PF-specific registers
5325 * This goes directly to the tear-down and rebuild of
5326 * the switch, since we need to do all the recovery as
5327 * for the Core Reset.
5329 dev_dbg(&pf
->pdev
->dev
, "PFR requested\n");
5330 i40e_handle_reset_warning(pf
);
5332 } else if (reset_flags
& BIT_ULL(__I40E_REINIT_REQUESTED
)) {
5335 /* Find the VSI(s) that requested a re-init */
5336 dev_info(&pf
->pdev
->dev
,
5337 "VSI reinit requested\n");
5338 for (v
= 0; v
< pf
->num_alloc_vsi
; v
++) {
5339 struct i40e_vsi
*vsi
= pf
->vsi
[v
];
5341 test_bit(__I40E_REINIT_REQUESTED
, &vsi
->state
)) {
5342 i40e_vsi_reinit_locked(pf
->vsi
[v
]);
5343 clear_bit(__I40E_REINIT_REQUESTED
, &vsi
->state
);
5347 /* no further action needed, so return now */
5349 } else if (reset_flags
& BIT_ULL(__I40E_DOWN_REQUESTED
)) {
5352 /* Find the VSI(s) that needs to be brought down */
5353 dev_info(&pf
->pdev
->dev
, "VSI down requested\n");
5354 for (v
= 0; v
< pf
->num_alloc_vsi
; v
++) {
5355 struct i40e_vsi
*vsi
= pf
->vsi
[v
];
5357 test_bit(__I40E_DOWN_REQUESTED
, &vsi
->state
)) {
5358 set_bit(__I40E_DOWN
, &vsi
->state
);
5360 clear_bit(__I40E_DOWN_REQUESTED
, &vsi
->state
);
5364 /* no further action needed, so return now */
5367 dev_info(&pf
->pdev
->dev
,
5368 "bad reset request 0x%08x\n", reset_flags
);
5373 #ifdef CONFIG_I40E_DCB
5375 * i40e_dcb_need_reconfig - Check if DCB needs reconfig
5376 * @pf: board private structure
5377 * @old_cfg: current DCB config
5378 * @new_cfg: new DCB config
5380 bool i40e_dcb_need_reconfig(struct i40e_pf
*pf
,
5381 struct i40e_dcbx_config
*old_cfg
,
5382 struct i40e_dcbx_config
*new_cfg
)
5384 bool need_reconfig
= false;
5386 /* Check if ETS configuration has changed */
5387 if (memcmp(&new_cfg
->etscfg
,
5389 sizeof(new_cfg
->etscfg
))) {
5390 /* If Priority Table has changed reconfig is needed */
5391 if (memcmp(&new_cfg
->etscfg
.prioritytable
,
5392 &old_cfg
->etscfg
.prioritytable
,
5393 sizeof(new_cfg
->etscfg
.prioritytable
))) {
5394 need_reconfig
= true;
5395 dev_dbg(&pf
->pdev
->dev
, "ETS UP2TC changed.\n");
5398 if (memcmp(&new_cfg
->etscfg
.tcbwtable
,
5399 &old_cfg
->etscfg
.tcbwtable
,
5400 sizeof(new_cfg
->etscfg
.tcbwtable
)))
5401 dev_dbg(&pf
->pdev
->dev
, "ETS TC BW Table changed.\n");
5403 if (memcmp(&new_cfg
->etscfg
.tsatable
,
5404 &old_cfg
->etscfg
.tsatable
,
5405 sizeof(new_cfg
->etscfg
.tsatable
)))
5406 dev_dbg(&pf
->pdev
->dev
, "ETS TSA Table changed.\n");
5409 /* Check if PFC configuration has changed */
5410 if (memcmp(&new_cfg
->pfc
,
5412 sizeof(new_cfg
->pfc
))) {
5413 need_reconfig
= true;
5414 dev_dbg(&pf
->pdev
->dev
, "PFC config change detected.\n");
5417 /* Check if APP Table has changed */
5418 if (memcmp(&new_cfg
->app
,
5420 sizeof(new_cfg
->app
))) {
5421 need_reconfig
= true;
5422 dev_dbg(&pf
->pdev
->dev
, "APP Table change detected.\n");
5425 dev_dbg(&pf
->pdev
->dev
, "%s: need_reconfig=%d\n", __func__
,
5427 return need_reconfig
;
5431 * i40e_handle_lldp_event - Handle LLDP Change MIB event
5432 * @pf: board private structure
5433 * @e: event info posted on ARQ
5435 static int i40e_handle_lldp_event(struct i40e_pf
*pf
,
5436 struct i40e_arq_event_info
*e
)
5438 struct i40e_aqc_lldp_get_mib
*mib
=
5439 (struct i40e_aqc_lldp_get_mib
*)&e
->desc
.params
.raw
;
5440 struct i40e_hw
*hw
= &pf
->hw
;
5441 struct i40e_dcbx_config tmp_dcbx_cfg
;
5442 bool need_reconfig
= false;
5446 /* Not DCB capable or capability disabled */
5447 if (!(pf
->flags
& I40E_FLAG_DCB_CAPABLE
))
5450 /* Ignore if event is not for Nearest Bridge */
5451 type
= ((mib
->type
>> I40E_AQ_LLDP_BRIDGE_TYPE_SHIFT
)
5452 & I40E_AQ_LLDP_BRIDGE_TYPE_MASK
);
5453 dev_dbg(&pf
->pdev
->dev
,
5454 "%s: LLDP event mib bridge type 0x%x\n", __func__
, type
);
5455 if (type
!= I40E_AQ_LLDP_BRIDGE_TYPE_NEAREST_BRIDGE
)
5458 /* Check MIB Type and return if event for Remote MIB update */
5459 type
= mib
->type
& I40E_AQ_LLDP_MIB_TYPE_MASK
;
5460 dev_dbg(&pf
->pdev
->dev
,
5461 "%s: LLDP event mib type %s\n", __func__
,
5462 type
? "remote" : "local");
5463 if (type
== I40E_AQ_LLDP_MIB_REMOTE
) {
5464 /* Update the remote cached instance and return */
5465 ret
= i40e_aq_get_dcb_config(hw
, I40E_AQ_LLDP_MIB_REMOTE
,
5466 I40E_AQ_LLDP_BRIDGE_TYPE_NEAREST_BRIDGE
,
5467 &hw
->remote_dcbx_config
);
5471 /* Store the old configuration */
5472 tmp_dcbx_cfg
= hw
->local_dcbx_config
;
5474 /* Reset the old DCBx configuration data */
5475 memset(&hw
->local_dcbx_config
, 0, sizeof(hw
->local_dcbx_config
));
5476 /* Get updated DCBX data from firmware */
5477 ret
= i40e_get_dcb_config(&pf
->hw
);
5479 dev_info(&pf
->pdev
->dev
,
5480 "Failed querying DCB configuration data from firmware, err %s aq_err %s\n",
5481 i40e_stat_str(&pf
->hw
, ret
),
5482 i40e_aq_str(&pf
->hw
, pf
->hw
.aq
.asq_last_status
));
5486 /* No change detected in DCBX configs */
5487 if (!memcmp(&tmp_dcbx_cfg
, &hw
->local_dcbx_config
,
5488 sizeof(tmp_dcbx_cfg
))) {
5489 dev_dbg(&pf
->pdev
->dev
, "No change detected in DCBX configuration.\n");
5493 need_reconfig
= i40e_dcb_need_reconfig(pf
, &tmp_dcbx_cfg
,
5494 &hw
->local_dcbx_config
);
5496 i40e_dcbnl_flush_apps(pf
, &tmp_dcbx_cfg
, &hw
->local_dcbx_config
);
5501 /* Enable DCB tagging only when more than one TC */
5502 if (i40e_dcb_get_num_tc(&hw
->local_dcbx_config
) > 1)
5503 pf
->flags
|= I40E_FLAG_DCB_ENABLED
;
5505 pf
->flags
&= ~I40E_FLAG_DCB_ENABLED
;
5507 set_bit(__I40E_PORT_TX_SUSPENDED
, &pf
->state
);
5508 /* Reconfiguration needed quiesce all VSIs */
5509 i40e_pf_quiesce_all_vsi(pf
);
5511 /* Changes in configuration update VEB/VSI */
5512 i40e_dcb_reconfigure(pf
);
5514 ret
= i40e_resume_port_tx(pf
);
5516 clear_bit(__I40E_PORT_TX_SUSPENDED
, &pf
->state
);
5517 /* In case of error no point in resuming VSIs */
5521 /* Wait for the PF's Tx queues to be disabled */
5522 ret
= i40e_pf_wait_txq_disabled(pf
);
5524 /* Schedule PF reset to recover */
5525 set_bit(__I40E_PF_RESET_REQUESTED
, &pf
->state
);
5526 i40e_service_event_schedule(pf
);
5528 i40e_pf_unquiesce_all_vsi(pf
);
5534 #endif /* CONFIG_I40E_DCB */
5537 * i40e_do_reset_safe - Protected reset path for userland calls.
5538 * @pf: board private structure
5539 * @reset_flags: which reset is requested
5542 void i40e_do_reset_safe(struct i40e_pf
*pf
, u32 reset_flags
)
5545 i40e_do_reset(pf
, reset_flags
);
5550 * i40e_handle_lan_overflow_event - Handler for LAN queue overflow event
5551 * @pf: board private structure
5552 * @e: event info posted on ARQ
5554 * Handler for LAN Queue Overflow Event generated by the firmware for PF
5557 static void i40e_handle_lan_overflow_event(struct i40e_pf
*pf
,
5558 struct i40e_arq_event_info
*e
)
5560 struct i40e_aqc_lan_overflow
*data
=
5561 (struct i40e_aqc_lan_overflow
*)&e
->desc
.params
.raw
;
5562 u32 queue
= le32_to_cpu(data
->prtdcb_rupto
);
5563 u32 qtx_ctl
= le32_to_cpu(data
->otx_ctl
);
5564 struct i40e_hw
*hw
= &pf
->hw
;
5568 dev_dbg(&pf
->pdev
->dev
, "overflow Rx Queue Number = %d QTX_CTL=0x%08x\n",
5571 /* Queue belongs to VF, find the VF and issue VF reset */
5572 if (((qtx_ctl
& I40E_QTX_CTL_PFVF_Q_MASK
)
5573 >> I40E_QTX_CTL_PFVF_Q_SHIFT
) == I40E_QTX_CTL_VF_QUEUE
) {
5574 vf_id
= (u16
)((qtx_ctl
& I40E_QTX_CTL_VFVM_INDX_MASK
)
5575 >> I40E_QTX_CTL_VFVM_INDX_SHIFT
);
5576 vf_id
-= hw
->func_caps
.vf_base_id
;
5577 vf
= &pf
->vf
[vf_id
];
5578 i40e_vc_notify_vf_reset(vf
);
5579 /* Allow VF to process pending reset notification */
5581 i40e_reset_vf(vf
, false);
5586 * i40e_service_event_complete - Finish up the service event
5587 * @pf: board private structure
5589 static void i40e_service_event_complete(struct i40e_pf
*pf
)
5591 BUG_ON(!test_bit(__I40E_SERVICE_SCHED
, &pf
->state
));
5593 /* flush memory to make sure state is correct before next watchog */
5594 smp_mb__before_atomic();
5595 clear_bit(__I40E_SERVICE_SCHED
, &pf
->state
);
5599 * i40e_get_cur_guaranteed_fd_count - Get the consumed guaranteed FD filters
5600 * @pf: board private structure
5602 u32
i40e_get_cur_guaranteed_fd_count(struct i40e_pf
*pf
)
5606 val
= rd32(&pf
->hw
, I40E_PFQF_FDSTAT
);
5607 fcnt_prog
= (val
& I40E_PFQF_FDSTAT_GUARANT_CNT_MASK
);
5612 * i40e_get_current_fd_count - Get total FD filters programmed for this PF
5613 * @pf: board private structure
5615 u32
i40e_get_current_fd_count(struct i40e_pf
*pf
)
5619 val
= rd32(&pf
->hw
, I40E_PFQF_FDSTAT
);
5620 fcnt_prog
= (val
& I40E_PFQF_FDSTAT_GUARANT_CNT_MASK
) +
5621 ((val
& I40E_PFQF_FDSTAT_BEST_CNT_MASK
) >>
5622 I40E_PFQF_FDSTAT_BEST_CNT_SHIFT
);
5627 * i40e_get_global_fd_count - Get total FD filters programmed on device
5628 * @pf: board private structure
5630 u32
i40e_get_global_fd_count(struct i40e_pf
*pf
)
5634 val
= rd32(&pf
->hw
, I40E_GLQF_FDCNT_0
);
5635 fcnt_prog
= (val
& I40E_GLQF_FDCNT_0_GUARANT_CNT_MASK
) +
5636 ((val
& I40E_GLQF_FDCNT_0_BESTCNT_MASK
) >>
5637 I40E_GLQF_FDCNT_0_BESTCNT_SHIFT
);
5642 * i40e_fdir_check_and_reenable - Function to reenabe FD ATR or SB if disabled
5643 * @pf: board private structure
5645 void i40e_fdir_check_and_reenable(struct i40e_pf
*pf
)
5647 u32 fcnt_prog
, fcnt_avail
;
5649 if (test_bit(__I40E_FD_FLUSH_REQUESTED
, &pf
->state
))
5652 /* Check if, FD SB or ATR was auto disabled and if there is enough room
5655 fcnt_prog
= i40e_get_global_fd_count(pf
);
5656 fcnt_avail
= pf
->fdir_pf_filter_count
;
5657 if ((fcnt_prog
< (fcnt_avail
- I40E_FDIR_BUFFER_HEAD_ROOM
)) ||
5658 (pf
->fd_add_err
== 0) ||
5659 (i40e_get_current_atr_cnt(pf
) < pf
->fd_atr_cnt
)) {
5660 if ((pf
->flags
& I40E_FLAG_FD_SB_ENABLED
) &&
5661 (pf
->auto_disable_flags
& I40E_FLAG_FD_SB_ENABLED
)) {
5662 pf
->auto_disable_flags
&= ~I40E_FLAG_FD_SB_ENABLED
;
5663 if (I40E_DEBUG_FD
& pf
->hw
.debug_mask
)
5664 dev_info(&pf
->pdev
->dev
, "FD Sideband/ntuple is being enabled since we have space in the table now\n");
5667 /* Wait for some more space to be available to turn on ATR */
5668 if (fcnt_prog
< (fcnt_avail
- I40E_FDIR_BUFFER_HEAD_ROOM
* 2)) {
5669 if ((pf
->flags
& I40E_FLAG_FD_ATR_ENABLED
) &&
5670 (pf
->auto_disable_flags
& I40E_FLAG_FD_ATR_ENABLED
)) {
5671 pf
->auto_disable_flags
&= ~I40E_FLAG_FD_ATR_ENABLED
;
5672 if (I40E_DEBUG_FD
& pf
->hw
.debug_mask
)
5673 dev_info(&pf
->pdev
->dev
, "ATR is being enabled since we have space in the table now\n");
5678 #define I40E_MIN_FD_FLUSH_INTERVAL 10
5679 #define I40E_MIN_FD_FLUSH_SB_ATR_UNSTABLE 30
5681 * i40e_fdir_flush_and_replay - Function to flush all FD filters and replay SB
5682 * @pf: board private structure
5684 static void i40e_fdir_flush_and_replay(struct i40e_pf
*pf
)
5686 unsigned long min_flush_time
;
5687 int flush_wait_retry
= 50;
5688 bool disable_atr
= false;
5692 if (!(pf
->flags
& (I40E_FLAG_FD_SB_ENABLED
| I40E_FLAG_FD_ATR_ENABLED
)))
5695 if (time_after(jiffies
, pf
->fd_flush_timestamp
+
5696 (I40E_MIN_FD_FLUSH_INTERVAL
* HZ
))) {
5697 /* If the flush is happening too quick and we have mostly
5698 * SB rules we should not re-enable ATR for some time.
5700 min_flush_time
= pf
->fd_flush_timestamp
5701 + (I40E_MIN_FD_FLUSH_SB_ATR_UNSTABLE
* HZ
);
5702 fd_room
= pf
->fdir_pf_filter_count
- pf
->fdir_pf_active_filters
;
5704 if (!(time_after(jiffies
, min_flush_time
)) &&
5705 (fd_room
< I40E_FDIR_BUFFER_HEAD_ROOM_FOR_ATR
)) {
5706 if (I40E_DEBUG_FD
& pf
->hw
.debug_mask
)
5707 dev_info(&pf
->pdev
->dev
, "ATR disabled, not enough FD filter space.\n");
5711 pf
->fd_flush_timestamp
= jiffies
;
5712 pf
->flags
&= ~I40E_FLAG_FD_ATR_ENABLED
;
5713 /* flush all filters */
5714 wr32(&pf
->hw
, I40E_PFQF_CTL_1
,
5715 I40E_PFQF_CTL_1_CLEARFDTABLE_MASK
);
5716 i40e_flush(&pf
->hw
);
5720 /* Check FD flush status every 5-6msec */
5721 usleep_range(5000, 6000);
5722 reg
= rd32(&pf
->hw
, I40E_PFQF_CTL_1
);
5723 if (!(reg
& I40E_PFQF_CTL_1_CLEARFDTABLE_MASK
))
5725 } while (flush_wait_retry
--);
5726 if (reg
& I40E_PFQF_CTL_1_CLEARFDTABLE_MASK
) {
5727 dev_warn(&pf
->pdev
->dev
, "FD table did not flush, needs more time\n");
5729 /* replay sideband filters */
5730 i40e_fdir_filter_restore(pf
->vsi
[pf
->lan_vsi
]);
5732 pf
->flags
|= I40E_FLAG_FD_ATR_ENABLED
;
5733 clear_bit(__I40E_FD_FLUSH_REQUESTED
, &pf
->state
);
5734 if (I40E_DEBUG_FD
& pf
->hw
.debug_mask
)
5735 dev_info(&pf
->pdev
->dev
, "FD Filter table flushed and FD-SB replayed.\n");
5741 * i40e_get_current_atr_count - Get the count of total FD ATR filters programmed
5742 * @pf: board private structure
5744 u32
i40e_get_current_atr_cnt(struct i40e_pf
*pf
)
5746 return i40e_get_current_fd_count(pf
) - pf
->fdir_pf_active_filters
;
5749 /* We can see up to 256 filter programming desc in transit if the filters are
5750 * being applied really fast; before we see the first
5751 * filter miss error on Rx queue 0. Accumulating enough error messages before
5752 * reacting will make sure we don't cause flush too often.
5754 #define I40E_MAX_FD_PROGRAM_ERROR 256
5757 * i40e_fdir_reinit_subtask - Worker thread to reinit FDIR filter table
5758 * @pf: board private structure
5760 static void i40e_fdir_reinit_subtask(struct i40e_pf
*pf
)
5763 /* if interface is down do nothing */
5764 if (test_bit(__I40E_DOWN
, &pf
->state
))
5767 if (!(pf
->flags
& (I40E_FLAG_FD_SB_ENABLED
| I40E_FLAG_FD_ATR_ENABLED
)))
5770 if (test_bit(__I40E_FD_FLUSH_REQUESTED
, &pf
->state
))
5771 i40e_fdir_flush_and_replay(pf
);
5773 i40e_fdir_check_and_reenable(pf
);
5778 * i40e_vsi_link_event - notify VSI of a link event
5779 * @vsi: vsi to be notified
5780 * @link_up: link up or down
5782 static void i40e_vsi_link_event(struct i40e_vsi
*vsi
, bool link_up
)
5784 if (!vsi
|| test_bit(__I40E_DOWN
, &vsi
->state
))
5787 switch (vsi
->type
) {
5792 if (!vsi
->netdev
|| !vsi
->netdev_registered
)
5796 netif_carrier_on(vsi
->netdev
);
5797 netif_tx_wake_all_queues(vsi
->netdev
);
5799 netif_carrier_off(vsi
->netdev
);
5800 netif_tx_stop_all_queues(vsi
->netdev
);
5804 case I40E_VSI_SRIOV
:
5805 case I40E_VSI_VMDQ2
:
5807 case I40E_VSI_MIRROR
:
5809 /* there is no notification for other VSIs */
5815 * i40e_veb_link_event - notify elements on the veb of a link event
5816 * @veb: veb to be notified
5817 * @link_up: link up or down
5819 static void i40e_veb_link_event(struct i40e_veb
*veb
, bool link_up
)
5824 if (!veb
|| !veb
->pf
)
5828 /* depth first... */
5829 for (i
= 0; i
< I40E_MAX_VEB
; i
++)
5830 if (pf
->veb
[i
] && (pf
->veb
[i
]->uplink_seid
== veb
->seid
))
5831 i40e_veb_link_event(pf
->veb
[i
], link_up
);
5833 /* ... now the local VSIs */
5834 for (i
= 0; i
< pf
->num_alloc_vsi
; i
++)
5835 if (pf
->vsi
[i
] && (pf
->vsi
[i
]->uplink_seid
== veb
->seid
))
5836 i40e_vsi_link_event(pf
->vsi
[i
], link_up
);
5840 * i40e_link_event - Update netif_carrier status
5841 * @pf: board private structure
5843 static void i40e_link_event(struct i40e_pf
*pf
)
5845 bool new_link
, old_link
;
5846 struct i40e_vsi
*vsi
= pf
->vsi
[pf
->lan_vsi
];
5847 u8 new_link_speed
, old_link_speed
;
5849 /* set this to force the get_link_status call to refresh state */
5850 pf
->hw
.phy
.get_link_info
= true;
5852 old_link
= (pf
->hw
.phy
.link_info_old
.link_info
& I40E_AQ_LINK_UP
);
5853 new_link
= i40e_get_link_status(&pf
->hw
);
5854 old_link_speed
= pf
->hw
.phy
.link_info_old
.link_speed
;
5855 new_link_speed
= pf
->hw
.phy
.link_info
.link_speed
;
5857 if (new_link
== old_link
&&
5858 new_link_speed
== old_link_speed
&&
5859 (test_bit(__I40E_DOWN
, &vsi
->state
) ||
5860 new_link
== netif_carrier_ok(vsi
->netdev
)))
5863 if (!test_bit(__I40E_DOWN
, &vsi
->state
))
5864 i40e_print_link_message(vsi
, new_link
);
5866 /* Notify the base of the switch tree connected to
5867 * the link. Floating VEBs are not notified.
5869 if (pf
->lan_veb
!= I40E_NO_VEB
&& pf
->veb
[pf
->lan_veb
])
5870 i40e_veb_link_event(pf
->veb
[pf
->lan_veb
], new_link
);
5872 i40e_vsi_link_event(vsi
, new_link
);
5875 i40e_vc_notify_link_state(pf
);
5877 if (pf
->flags
& I40E_FLAG_PTP
)
5878 i40e_ptp_set_increment(pf
);
5882 * i40e_watchdog_subtask - periodic checks not using event driven response
5883 * @pf: board private structure
5885 static void i40e_watchdog_subtask(struct i40e_pf
*pf
)
5889 /* if interface is down do nothing */
5890 if (test_bit(__I40E_DOWN
, &pf
->state
) ||
5891 test_bit(__I40E_CONFIG_BUSY
, &pf
->state
))
5894 /* make sure we don't do these things too often */
5895 if (time_before(jiffies
, (pf
->service_timer_previous
+
5896 pf
->service_timer_period
)))
5898 pf
->service_timer_previous
= jiffies
;
5900 i40e_link_event(pf
);
5902 /* Update the stats for active netdevs so the network stack
5903 * can look at updated numbers whenever it cares to
5905 for (i
= 0; i
< pf
->num_alloc_vsi
; i
++)
5906 if (pf
->vsi
[i
] && pf
->vsi
[i
]->netdev
)
5907 i40e_update_stats(pf
->vsi
[i
]);
5909 if (pf
->flags
& I40E_FLAG_VEB_STATS_ENABLED
) {
5910 /* Update the stats for the active switching components */
5911 for (i
= 0; i
< I40E_MAX_VEB
; i
++)
5913 i40e_update_veb_stats(pf
->veb
[i
]);
5916 i40e_ptp_rx_hang(pf
->vsi
[pf
->lan_vsi
]);
5920 * i40e_reset_subtask - Set up for resetting the device and driver
5921 * @pf: board private structure
5923 static void i40e_reset_subtask(struct i40e_pf
*pf
)
5925 u32 reset_flags
= 0;
5928 if (test_bit(__I40E_REINIT_REQUESTED
, &pf
->state
)) {
5929 reset_flags
|= BIT_ULL(__I40E_REINIT_REQUESTED
);
5930 clear_bit(__I40E_REINIT_REQUESTED
, &pf
->state
);
5932 if (test_bit(__I40E_PF_RESET_REQUESTED
, &pf
->state
)) {
5933 reset_flags
|= BIT_ULL(__I40E_PF_RESET_REQUESTED
);
5934 clear_bit(__I40E_PF_RESET_REQUESTED
, &pf
->state
);
5936 if (test_bit(__I40E_CORE_RESET_REQUESTED
, &pf
->state
)) {
5937 reset_flags
|= BIT_ULL(__I40E_CORE_RESET_REQUESTED
);
5938 clear_bit(__I40E_CORE_RESET_REQUESTED
, &pf
->state
);
5940 if (test_bit(__I40E_GLOBAL_RESET_REQUESTED
, &pf
->state
)) {
5941 reset_flags
|= BIT_ULL(__I40E_GLOBAL_RESET_REQUESTED
);
5942 clear_bit(__I40E_GLOBAL_RESET_REQUESTED
, &pf
->state
);
5944 if (test_bit(__I40E_DOWN_REQUESTED
, &pf
->state
)) {
5945 reset_flags
|= BIT_ULL(__I40E_DOWN_REQUESTED
);
5946 clear_bit(__I40E_DOWN_REQUESTED
, &pf
->state
);
5949 /* If there's a recovery already waiting, it takes
5950 * precedence before starting a new reset sequence.
5952 if (test_bit(__I40E_RESET_INTR_RECEIVED
, &pf
->state
)) {
5953 i40e_handle_reset_warning(pf
);
5957 /* If we're already down or resetting, just bail */
5959 !test_bit(__I40E_DOWN
, &pf
->state
) &&
5960 !test_bit(__I40E_CONFIG_BUSY
, &pf
->state
))
5961 i40e_do_reset(pf
, reset_flags
);
5968 * i40e_handle_link_event - Handle link event
5969 * @pf: board private structure
5970 * @e: event info posted on ARQ
5972 static void i40e_handle_link_event(struct i40e_pf
*pf
,
5973 struct i40e_arq_event_info
*e
)
5975 struct i40e_hw
*hw
= &pf
->hw
;
5976 struct i40e_aqc_get_link_status
*status
=
5977 (struct i40e_aqc_get_link_status
*)&e
->desc
.params
.raw
;
5979 /* save off old link status information */
5980 hw
->phy
.link_info_old
= hw
->phy
.link_info
;
5982 /* Do a new status request to re-enable LSE reporting
5983 * and load new status information into the hw struct
5984 * This completely ignores any state information
5985 * in the ARQ event info, instead choosing to always
5986 * issue the AQ update link status command.
5988 i40e_link_event(pf
);
5990 /* check for unqualified module, if link is down */
5991 if ((status
->link_info
& I40E_AQ_MEDIA_AVAILABLE
) &&
5992 (!(status
->an_info
& I40E_AQ_QUALIFIED_MODULE
)) &&
5993 (!(status
->link_info
& I40E_AQ_LINK_UP
)))
5994 dev_err(&pf
->pdev
->dev
,
5995 "The driver failed to link because an unqualified module was detected.\n");
5999 * i40e_clean_adminq_subtask - Clean the AdminQ rings
6000 * @pf: board private structure
6002 static void i40e_clean_adminq_subtask(struct i40e_pf
*pf
)
6004 struct i40e_arq_event_info event
;
6005 struct i40e_hw
*hw
= &pf
->hw
;
6012 /* Do not run clean AQ when PF reset fails */
6013 if (test_bit(__I40E_RESET_FAILED
, &pf
->state
))
6016 /* check for error indications */
6017 val
= rd32(&pf
->hw
, pf
->hw
.aq
.arq
.len
);
6019 if (val
& I40E_PF_ARQLEN_ARQVFE_MASK
) {
6020 dev_info(&pf
->pdev
->dev
, "ARQ VF Error detected\n");
6021 val
&= ~I40E_PF_ARQLEN_ARQVFE_MASK
;
6023 if (val
& I40E_PF_ARQLEN_ARQOVFL_MASK
) {
6024 dev_info(&pf
->pdev
->dev
, "ARQ Overflow Error detected\n");
6025 val
&= ~I40E_PF_ARQLEN_ARQOVFL_MASK
;
6027 if (val
& I40E_PF_ARQLEN_ARQCRIT_MASK
) {
6028 dev_info(&pf
->pdev
->dev
, "ARQ Critical Error detected\n");
6029 val
&= ~I40E_PF_ARQLEN_ARQCRIT_MASK
;
6032 wr32(&pf
->hw
, pf
->hw
.aq
.arq
.len
, val
);
6034 val
= rd32(&pf
->hw
, pf
->hw
.aq
.asq
.len
);
6036 if (val
& I40E_PF_ATQLEN_ATQVFE_MASK
) {
6037 dev_info(&pf
->pdev
->dev
, "ASQ VF Error detected\n");
6038 val
&= ~I40E_PF_ATQLEN_ATQVFE_MASK
;
6040 if (val
& I40E_PF_ATQLEN_ATQOVFL_MASK
) {
6041 dev_info(&pf
->pdev
->dev
, "ASQ Overflow Error detected\n");
6042 val
&= ~I40E_PF_ATQLEN_ATQOVFL_MASK
;
6044 if (val
& I40E_PF_ATQLEN_ATQCRIT_MASK
) {
6045 dev_info(&pf
->pdev
->dev
, "ASQ Critical Error detected\n");
6046 val
&= ~I40E_PF_ATQLEN_ATQCRIT_MASK
;
6049 wr32(&pf
->hw
, pf
->hw
.aq
.asq
.len
, val
);
6051 event
.buf_len
= I40E_MAX_AQ_BUF_SIZE
;
6052 event
.msg_buf
= kzalloc(event
.buf_len
, GFP_KERNEL
);
6057 ret
= i40e_clean_arq_element(hw
, &event
, &pending
);
6058 if (ret
== I40E_ERR_ADMIN_QUEUE_NO_WORK
)
6061 dev_info(&pf
->pdev
->dev
, "ARQ event error %d\n", ret
);
6065 opcode
= le16_to_cpu(event
.desc
.opcode
);
6068 case i40e_aqc_opc_get_link_status
:
6069 i40e_handle_link_event(pf
, &event
);
6071 case i40e_aqc_opc_send_msg_to_pf
:
6072 ret
= i40e_vc_process_vf_msg(pf
,
6073 le16_to_cpu(event
.desc
.retval
),
6074 le32_to_cpu(event
.desc
.cookie_high
),
6075 le32_to_cpu(event
.desc
.cookie_low
),
6079 case i40e_aqc_opc_lldp_update_mib
:
6080 dev_dbg(&pf
->pdev
->dev
, "ARQ: Update LLDP MIB event received\n");
6081 #ifdef CONFIG_I40E_DCB
6083 ret
= i40e_handle_lldp_event(pf
, &event
);
6085 #endif /* CONFIG_I40E_DCB */
6087 case i40e_aqc_opc_event_lan_overflow
:
6088 dev_dbg(&pf
->pdev
->dev
, "ARQ LAN queue overflow event received\n");
6089 i40e_handle_lan_overflow_event(pf
, &event
);
6091 case i40e_aqc_opc_send_msg_to_peer
:
6092 dev_info(&pf
->pdev
->dev
, "ARQ: Msg from other pf\n");
6094 case i40e_aqc_opc_nvm_erase
:
6095 case i40e_aqc_opc_nvm_update
:
6096 i40e_debug(&pf
->hw
, I40E_DEBUG_NVM
, "ARQ NVM operation completed\n");
6099 dev_info(&pf
->pdev
->dev
,
6100 "ARQ Error: Unknown event 0x%04x received\n",
6104 } while (pending
&& (i
++ < pf
->adminq_work_limit
));
6106 clear_bit(__I40E_ADMINQ_EVENT_PENDING
, &pf
->state
);
6107 /* re-enable Admin queue interrupt cause */
6108 val
= rd32(hw
, I40E_PFINT_ICR0_ENA
);
6109 val
|= I40E_PFINT_ICR0_ENA_ADMINQ_MASK
;
6110 wr32(hw
, I40E_PFINT_ICR0_ENA
, val
);
6113 kfree(event
.msg_buf
);
6117 * i40e_verify_eeprom - make sure eeprom is good to use
6118 * @pf: board private structure
6120 static void i40e_verify_eeprom(struct i40e_pf
*pf
)
6124 err
= i40e_diag_eeprom_test(&pf
->hw
);
6126 /* retry in case of garbage read */
6127 err
= i40e_diag_eeprom_test(&pf
->hw
);
6129 dev_info(&pf
->pdev
->dev
, "eeprom check failed (%d), Tx/Rx traffic disabled\n",
6131 set_bit(__I40E_BAD_EEPROM
, &pf
->state
);
6135 if (!err
&& test_bit(__I40E_BAD_EEPROM
, &pf
->state
)) {
6136 dev_info(&pf
->pdev
->dev
, "eeprom check passed, Tx/Rx traffic enabled\n");
6137 clear_bit(__I40E_BAD_EEPROM
, &pf
->state
);
6142 * i40e_enable_pf_switch_lb
6143 * @pf: pointer to the PF structure
6145 * enable switch loop back or die - no point in a return value
6147 static void i40e_enable_pf_switch_lb(struct i40e_pf
*pf
)
6149 struct i40e_vsi
*vsi
= pf
->vsi
[pf
->lan_vsi
];
6150 struct i40e_vsi_context ctxt
;
6153 ctxt
.seid
= pf
->main_vsi_seid
;
6154 ctxt
.pf_num
= pf
->hw
.pf_id
;
6156 ret
= i40e_aq_get_vsi_params(&pf
->hw
, &ctxt
, NULL
);
6158 dev_info(&pf
->pdev
->dev
,
6159 "couldn't get PF vsi config, err %s aq_err %s\n",
6160 i40e_stat_str(&pf
->hw
, ret
),
6161 i40e_aq_str(&pf
->hw
, pf
->hw
.aq
.asq_last_status
));
6164 ctxt
.flags
= I40E_AQ_VSI_TYPE_PF
;
6165 ctxt
.info
.valid_sections
= cpu_to_le16(I40E_AQ_VSI_PROP_SWITCH_VALID
);
6166 ctxt
.info
.switch_id
|= cpu_to_le16(I40E_AQ_VSI_SW_ID_FLAG_ALLOW_LB
);
6168 ret
= i40e_aq_update_vsi_params(&vsi
->back
->hw
, &ctxt
, NULL
);
6170 dev_info(&pf
->pdev
->dev
,
6171 "update vsi switch failed, err %s aq_err %s\n",
6172 i40e_stat_str(&pf
->hw
, ret
),
6173 i40e_aq_str(&pf
->hw
, pf
->hw
.aq
.asq_last_status
));
6178 * i40e_disable_pf_switch_lb
6179 * @pf: pointer to the PF structure
6181 * disable switch loop back or die - no point in a return value
6183 static void i40e_disable_pf_switch_lb(struct i40e_pf
*pf
)
6185 struct i40e_vsi
*vsi
= pf
->vsi
[pf
->lan_vsi
];
6186 struct i40e_vsi_context ctxt
;
6189 ctxt
.seid
= pf
->main_vsi_seid
;
6190 ctxt
.pf_num
= pf
->hw
.pf_id
;
6192 ret
= i40e_aq_get_vsi_params(&pf
->hw
, &ctxt
, NULL
);
6194 dev_info(&pf
->pdev
->dev
,
6195 "couldn't get PF vsi config, err %s aq_err %s\n",
6196 i40e_stat_str(&pf
->hw
, ret
),
6197 i40e_aq_str(&pf
->hw
, pf
->hw
.aq
.asq_last_status
));
6200 ctxt
.flags
= I40E_AQ_VSI_TYPE_PF
;
6201 ctxt
.info
.valid_sections
= cpu_to_le16(I40E_AQ_VSI_PROP_SWITCH_VALID
);
6202 ctxt
.info
.switch_id
&= ~cpu_to_le16(I40E_AQ_VSI_SW_ID_FLAG_ALLOW_LB
);
6204 ret
= i40e_aq_update_vsi_params(&vsi
->back
->hw
, &ctxt
, NULL
);
6206 dev_info(&pf
->pdev
->dev
,
6207 "update vsi switch failed, err %s aq_err %s\n",
6208 i40e_stat_str(&pf
->hw
, ret
),
6209 i40e_aq_str(&pf
->hw
, pf
->hw
.aq
.asq_last_status
));
6214 * i40e_config_bridge_mode - Configure the HW bridge mode
6215 * @veb: pointer to the bridge instance
6217 * Configure the loop back mode for the LAN VSI that is downlink to the
6218 * specified HW bridge instance. It is expected this function is called
6219 * when a new HW bridge is instantiated.
6221 static void i40e_config_bridge_mode(struct i40e_veb
*veb
)
6223 struct i40e_pf
*pf
= veb
->pf
;
6225 dev_info(&pf
->pdev
->dev
, "enabling bridge mode: %s\n",
6226 veb
->bridge_mode
== BRIDGE_MODE_VEPA
? "VEPA" : "VEB");
6227 if (veb
->bridge_mode
& BRIDGE_MODE_VEPA
)
6228 i40e_disable_pf_switch_lb(pf
);
6230 i40e_enable_pf_switch_lb(pf
);
6234 * i40e_reconstitute_veb - rebuild the VEB and anything connected to it
6235 * @veb: pointer to the VEB instance
6237 * This is a recursive function that first builds the attached VSIs then
6238 * recurses in to build the next layer of VEB. We track the connections
6239 * through our own index numbers because the seid's from the HW could
6240 * change across the reset.
6242 static int i40e_reconstitute_veb(struct i40e_veb
*veb
)
6244 struct i40e_vsi
*ctl_vsi
= NULL
;
6245 struct i40e_pf
*pf
= veb
->pf
;
6249 /* build VSI that owns this VEB, temporarily attached to base VEB */
6250 for (v
= 0; v
< pf
->num_alloc_vsi
&& !ctl_vsi
; v
++) {
6252 pf
->vsi
[v
]->veb_idx
== veb
->idx
&&
6253 pf
->vsi
[v
]->flags
& I40E_VSI_FLAG_VEB_OWNER
) {
6254 ctl_vsi
= pf
->vsi
[v
];
6259 dev_info(&pf
->pdev
->dev
,
6260 "missing owner VSI for veb_idx %d\n", veb
->idx
);
6262 goto end_reconstitute
;
6264 if (ctl_vsi
!= pf
->vsi
[pf
->lan_vsi
])
6265 ctl_vsi
->uplink_seid
= pf
->vsi
[pf
->lan_vsi
]->uplink_seid
;
6266 ret
= i40e_add_vsi(ctl_vsi
);
6268 dev_info(&pf
->pdev
->dev
,
6269 "rebuild of veb_idx %d owner VSI failed: %d\n",
6271 goto end_reconstitute
;
6273 i40e_vsi_reset_stats(ctl_vsi
);
6275 /* create the VEB in the switch and move the VSI onto the VEB */
6276 ret
= i40e_add_veb(veb
, ctl_vsi
);
6278 goto end_reconstitute
;
6280 if (pf
->flags
& I40E_FLAG_VEB_MODE_ENABLED
)
6281 veb
->bridge_mode
= BRIDGE_MODE_VEB
;
6283 veb
->bridge_mode
= BRIDGE_MODE_VEPA
;
6284 i40e_config_bridge_mode(veb
);
6286 /* create the remaining VSIs attached to this VEB */
6287 for (v
= 0; v
< pf
->num_alloc_vsi
; v
++) {
6288 if (!pf
->vsi
[v
] || pf
->vsi
[v
] == ctl_vsi
)
6291 if (pf
->vsi
[v
]->veb_idx
== veb
->idx
) {
6292 struct i40e_vsi
*vsi
= pf
->vsi
[v
];
6293 vsi
->uplink_seid
= veb
->seid
;
6294 ret
= i40e_add_vsi(vsi
);
6296 dev_info(&pf
->pdev
->dev
,
6297 "rebuild of vsi_idx %d failed: %d\n",
6299 goto end_reconstitute
;
6301 i40e_vsi_reset_stats(vsi
);
6305 /* create any VEBs attached to this VEB - RECURSION */
6306 for (veb_idx
= 0; veb_idx
< I40E_MAX_VEB
; veb_idx
++) {
6307 if (pf
->veb
[veb_idx
] && pf
->veb
[veb_idx
]->veb_idx
== veb
->idx
) {
6308 pf
->veb
[veb_idx
]->uplink_seid
= veb
->seid
;
6309 ret
= i40e_reconstitute_veb(pf
->veb
[veb_idx
]);
6320 * i40e_get_capabilities - get info about the HW
6321 * @pf: the PF struct
6323 static int i40e_get_capabilities(struct i40e_pf
*pf
)
6325 struct i40e_aqc_list_capabilities_element_resp
*cap_buf
;
6330 buf_len
= 40 * sizeof(struct i40e_aqc_list_capabilities_element_resp
);
6332 cap_buf
= kzalloc(buf_len
, GFP_KERNEL
);
6336 /* this loads the data into the hw struct for us */
6337 err
= i40e_aq_discover_capabilities(&pf
->hw
, cap_buf
, buf_len
,
6339 i40e_aqc_opc_list_func_capabilities
,
6341 /* data loaded, buffer no longer needed */
6344 if (pf
->hw
.aq
.asq_last_status
== I40E_AQ_RC_ENOMEM
) {
6345 /* retry with a larger buffer */
6346 buf_len
= data_size
;
6347 } else if (pf
->hw
.aq
.asq_last_status
!= I40E_AQ_RC_OK
) {
6348 dev_info(&pf
->pdev
->dev
,
6349 "capability discovery failed, err %s aq_err %s\n",
6350 i40e_stat_str(&pf
->hw
, err
),
6351 i40e_aq_str(&pf
->hw
,
6352 pf
->hw
.aq
.asq_last_status
));
6357 if (((pf
->hw
.aq
.fw_maj_ver
== 2) && (pf
->hw
.aq
.fw_min_ver
< 22)) ||
6358 (pf
->hw
.aq
.fw_maj_ver
< 2)) {
6359 pf
->hw
.func_caps
.num_msix_vectors
++;
6360 pf
->hw
.func_caps
.num_msix_vectors_vf
++;
6363 if (pf
->hw
.debug_mask
& I40E_DEBUG_USER
)
6364 dev_info(&pf
->pdev
->dev
,
6365 "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",
6366 pf
->hw
.pf_id
, pf
->hw
.func_caps
.num_vfs
,
6367 pf
->hw
.func_caps
.num_msix_vectors
,
6368 pf
->hw
.func_caps
.num_msix_vectors_vf
,
6369 pf
->hw
.func_caps
.fd_filters_guaranteed
,
6370 pf
->hw
.func_caps
.fd_filters_best_effort
,
6371 pf
->hw
.func_caps
.num_tx_qp
,
6372 pf
->hw
.func_caps
.num_vsis
);
6374 #define DEF_NUM_VSI (1 + (pf->hw.func_caps.fcoe ? 1 : 0) \
6375 + pf->hw.func_caps.num_vfs)
6376 if (pf
->hw
.revision_id
== 0 && (DEF_NUM_VSI
> pf
->hw
.func_caps
.num_vsis
)) {
6377 dev_info(&pf
->pdev
->dev
,
6378 "got num_vsis %d, setting num_vsis to %d\n",
6379 pf
->hw
.func_caps
.num_vsis
, DEF_NUM_VSI
);
6380 pf
->hw
.func_caps
.num_vsis
= DEF_NUM_VSI
;
6386 static int i40e_vsi_clear(struct i40e_vsi
*vsi
);
6389 * i40e_fdir_sb_setup - initialize the Flow Director resources for Sideband
6390 * @pf: board private structure
6392 static void i40e_fdir_sb_setup(struct i40e_pf
*pf
)
6394 struct i40e_vsi
*vsi
;
6397 /* quick workaround for an NVM issue that leaves a critical register
6400 if (!rd32(&pf
->hw
, I40E_GLQF_HKEY(0))) {
6401 static const u32 hkey
[] = {
6402 0xe640d33f, 0xcdfe98ab, 0x73fa7161, 0x0d7a7d36,
6403 0xeacb7d61, 0xaa4f05b6, 0x9c5c89ed, 0xfc425ddb,
6404 0xa4654832, 0xfc7461d4, 0x8f827619, 0xf5c63c21,
6407 for (i
= 0; i
<= I40E_GLQF_HKEY_MAX_INDEX
; i
++)
6408 wr32(&pf
->hw
, I40E_GLQF_HKEY(i
), hkey
[i
]);
6411 if (!(pf
->flags
& I40E_FLAG_FD_SB_ENABLED
))
6414 /* find existing VSI and see if it needs configuring */
6416 for (i
= 0; i
< pf
->num_alloc_vsi
; i
++) {
6417 if (pf
->vsi
[i
] && pf
->vsi
[i
]->type
== I40E_VSI_FDIR
) {
6423 /* create a new VSI if none exists */
6425 vsi
= i40e_vsi_setup(pf
, I40E_VSI_FDIR
,
6426 pf
->vsi
[pf
->lan_vsi
]->seid
, 0);
6428 dev_info(&pf
->pdev
->dev
, "Couldn't create FDir VSI\n");
6429 pf
->flags
&= ~I40E_FLAG_FD_SB_ENABLED
;
6434 i40e_vsi_setup_irqhandler(vsi
, i40e_fdir_clean_ring
);
6438 * i40e_fdir_teardown - release the Flow Director resources
6439 * @pf: board private structure
6441 static void i40e_fdir_teardown(struct i40e_pf
*pf
)
6445 i40e_fdir_filter_exit(pf
);
6446 for (i
= 0; i
< pf
->num_alloc_vsi
; i
++) {
6447 if (pf
->vsi
[i
] && pf
->vsi
[i
]->type
== I40E_VSI_FDIR
) {
6448 i40e_vsi_release(pf
->vsi
[i
]);
6455 * i40e_prep_for_reset - prep for the core to reset
6456 * @pf: board private structure
6458 * Close up the VFs and other things in prep for PF Reset.
6460 static void i40e_prep_for_reset(struct i40e_pf
*pf
)
6462 struct i40e_hw
*hw
= &pf
->hw
;
6463 i40e_status ret
= 0;
6466 clear_bit(__I40E_RESET_INTR_RECEIVED
, &pf
->state
);
6467 if (test_and_set_bit(__I40E_RESET_RECOVERY_PENDING
, &pf
->state
))
6470 dev_dbg(&pf
->pdev
->dev
, "Tearing down internal switch for reset\n");
6472 /* quiesce the VSIs and their queues that are not already DOWN */
6473 i40e_pf_quiesce_all_vsi(pf
);
6475 for (v
= 0; v
< pf
->num_alloc_vsi
; v
++) {
6477 pf
->vsi
[v
]->seid
= 0;
6480 i40e_shutdown_adminq(&pf
->hw
);
6482 /* call shutdown HMC */
6483 if (hw
->hmc
.hmc_obj
) {
6484 ret
= i40e_shutdown_lan_hmc(hw
);
6486 dev_warn(&pf
->pdev
->dev
,
6487 "shutdown_lan_hmc failed: %d\n", ret
);
6492 * i40e_send_version - update firmware with driver version
6495 static void i40e_send_version(struct i40e_pf
*pf
)
6497 struct i40e_driver_version dv
;
6499 dv
.major_version
= DRV_VERSION_MAJOR
;
6500 dv
.minor_version
= DRV_VERSION_MINOR
;
6501 dv
.build_version
= DRV_VERSION_BUILD
;
6502 dv
.subbuild_version
= 0;
6503 strlcpy(dv
.driver_string
, DRV_VERSION
, sizeof(dv
.driver_string
));
6504 i40e_aq_send_driver_version(&pf
->hw
, &dv
, NULL
);
6508 * i40e_reset_and_rebuild - reset and rebuild using a saved config
6509 * @pf: board private structure
6510 * @reinit: if the Main VSI needs to re-initialized.
6512 static void i40e_reset_and_rebuild(struct i40e_pf
*pf
, bool reinit
)
6514 struct i40e_hw
*hw
= &pf
->hw
;
6515 u8 set_fc_aq_fail
= 0;
6519 /* Now we wait for GRST to settle out.
6520 * We don't have to delete the VEBs or VSIs from the hw switch
6521 * because the reset will make them disappear.
6523 ret
= i40e_pf_reset(hw
);
6525 dev_info(&pf
->pdev
->dev
, "PF reset failed, %d\n", ret
);
6526 set_bit(__I40E_RESET_FAILED
, &pf
->state
);
6527 goto clear_recovery
;
6531 if (test_bit(__I40E_DOWN
, &pf
->state
))
6532 goto clear_recovery
;
6533 dev_dbg(&pf
->pdev
->dev
, "Rebuilding internal switch\n");
6535 /* rebuild the basics for the AdminQ, HMC, and initial HW switch */
6536 ret
= i40e_init_adminq(&pf
->hw
);
6538 dev_info(&pf
->pdev
->dev
, "Rebuild AdminQ failed, err %s aq_err %s\n",
6539 i40e_stat_str(&pf
->hw
, ret
),
6540 i40e_aq_str(&pf
->hw
, pf
->hw
.aq
.asq_last_status
));
6541 goto clear_recovery
;
6544 /* re-verify the eeprom if we just had an EMP reset */
6545 if (test_and_clear_bit(__I40E_EMP_RESET_INTR_RECEIVED
, &pf
->state
))
6546 i40e_verify_eeprom(pf
);
6548 i40e_clear_pxe_mode(hw
);
6549 ret
= i40e_get_capabilities(pf
);
6551 goto end_core_reset
;
6553 ret
= i40e_init_lan_hmc(hw
, hw
->func_caps
.num_tx_qp
,
6554 hw
->func_caps
.num_rx_qp
,
6555 pf
->fcoe_hmc_cntx_num
, pf
->fcoe_hmc_filt_num
);
6557 dev_info(&pf
->pdev
->dev
, "init_lan_hmc failed: %d\n", ret
);
6558 goto end_core_reset
;
6560 ret
= i40e_configure_lan_hmc(hw
, I40E_HMC_MODEL_DIRECT_ONLY
);
6562 dev_info(&pf
->pdev
->dev
, "configure_lan_hmc failed: %d\n", ret
);
6563 goto end_core_reset
;
6566 #ifdef CONFIG_I40E_DCB
6567 ret
= i40e_init_pf_dcb(pf
);
6569 dev_info(&pf
->pdev
->dev
, "DCB init failed %d, disabled\n", ret
);
6570 pf
->flags
&= ~I40E_FLAG_DCB_CAPABLE
;
6571 /* Continue without DCB enabled */
6573 #endif /* CONFIG_I40E_DCB */
6575 ret
= i40e_init_pf_fcoe(pf
);
6577 dev_info(&pf
->pdev
->dev
, "init_pf_fcoe failed: %d\n", ret
);
6580 /* do basic switch setup */
6581 ret
= i40e_setup_pf_switch(pf
, reinit
);
6583 goto end_core_reset
;
6585 /* driver is only interested in link up/down and module qualification
6586 * reports from firmware
6588 ret
= i40e_aq_set_phy_int_mask(&pf
->hw
,
6589 I40E_AQ_EVENT_LINK_UPDOWN
|
6590 I40E_AQ_EVENT_MODULE_QUAL_FAIL
, NULL
);
6592 dev_info(&pf
->pdev
->dev
, "set phy mask fail, err %s aq_err %s\n",
6593 i40e_stat_str(&pf
->hw
, ret
),
6594 i40e_aq_str(&pf
->hw
, pf
->hw
.aq
.asq_last_status
));
6596 /* make sure our flow control settings are restored */
6597 ret
= i40e_set_fc(&pf
->hw
, &set_fc_aq_fail
, true);
6599 dev_info(&pf
->pdev
->dev
, "set fc fail, err %s aq_err %s\n",
6600 i40e_stat_str(&pf
->hw
, ret
),
6601 i40e_aq_str(&pf
->hw
, pf
->hw
.aq
.asq_last_status
));
6603 /* Rebuild the VSIs and VEBs that existed before reset.
6604 * They are still in our local switch element arrays, so only
6605 * need to rebuild the switch model in the HW.
6607 * If there were VEBs but the reconstitution failed, we'll try
6608 * try to recover minimal use by getting the basic PF VSI working.
6610 if (pf
->vsi
[pf
->lan_vsi
]->uplink_seid
!= pf
->mac_seid
) {
6611 dev_dbg(&pf
->pdev
->dev
, "attempting to rebuild switch\n");
6612 /* find the one VEB connected to the MAC, and find orphans */
6613 for (v
= 0; v
< I40E_MAX_VEB
; v
++) {
6617 if (pf
->veb
[v
]->uplink_seid
== pf
->mac_seid
||
6618 pf
->veb
[v
]->uplink_seid
== 0) {
6619 ret
= i40e_reconstitute_veb(pf
->veb
[v
]);
6624 /* If Main VEB failed, we're in deep doodoo,
6625 * so give up rebuilding the switch and set up
6626 * for minimal rebuild of PF VSI.
6627 * If orphan failed, we'll report the error
6628 * but try to keep going.
6630 if (pf
->veb
[v
]->uplink_seid
== pf
->mac_seid
) {
6631 dev_info(&pf
->pdev
->dev
,
6632 "rebuild of switch failed: %d, will try to set up simple PF connection\n",
6634 pf
->vsi
[pf
->lan_vsi
]->uplink_seid
6637 } else if (pf
->veb
[v
]->uplink_seid
== 0) {
6638 dev_info(&pf
->pdev
->dev
,
6639 "rebuild of orphan VEB failed: %d\n",
6646 if (pf
->vsi
[pf
->lan_vsi
]->uplink_seid
== pf
->mac_seid
) {
6647 dev_dbg(&pf
->pdev
->dev
, "attempting to rebuild PF VSI\n");
6648 /* no VEB, so rebuild only the Main VSI */
6649 ret
= i40e_add_vsi(pf
->vsi
[pf
->lan_vsi
]);
6651 dev_info(&pf
->pdev
->dev
,
6652 "rebuild of Main VSI failed: %d\n", ret
);
6653 goto end_core_reset
;
6657 if (((pf
->hw
.aq
.fw_maj_ver
== 4) && (pf
->hw
.aq
.fw_min_ver
< 33)) ||
6658 (pf
->hw
.aq
.fw_maj_ver
< 4)) {
6660 ret
= i40e_aq_set_link_restart_an(&pf
->hw
, true, NULL
);
6662 dev_info(&pf
->pdev
->dev
, "link restart failed, err %s aq_err %s\n",
6663 i40e_stat_str(&pf
->hw
, ret
),
6664 i40e_aq_str(&pf
->hw
,
6665 pf
->hw
.aq
.asq_last_status
));
6667 /* reinit the misc interrupt */
6668 if (pf
->flags
& I40E_FLAG_MSIX_ENABLED
)
6669 ret
= i40e_setup_misc_vector(pf
);
6671 /* restart the VSIs that were rebuilt and running before the reset */
6672 i40e_pf_unquiesce_all_vsi(pf
);
6674 if (pf
->num_alloc_vfs
) {
6675 for (v
= 0; v
< pf
->num_alloc_vfs
; v
++)
6676 i40e_reset_vf(&pf
->vf
[v
], true);
6679 /* tell the firmware that we're starting */
6680 i40e_send_version(pf
);
6683 clear_bit(__I40E_RESET_FAILED
, &pf
->state
);
6685 clear_bit(__I40E_RESET_RECOVERY_PENDING
, &pf
->state
);
6689 * i40e_handle_reset_warning - prep for the PF to reset, reset and rebuild
6690 * @pf: board private structure
6692 * Close up the VFs and other things in prep for a Core Reset,
6693 * then get ready to rebuild the world.
6695 static void i40e_handle_reset_warning(struct i40e_pf
*pf
)
6697 i40e_prep_for_reset(pf
);
6698 i40e_reset_and_rebuild(pf
, false);
6702 * i40e_handle_mdd_event
6703 * @pf: pointer to the PF structure
6705 * Called from the MDD irq handler to identify possibly malicious vfs
6707 static void i40e_handle_mdd_event(struct i40e_pf
*pf
)
6709 struct i40e_hw
*hw
= &pf
->hw
;
6710 bool mdd_detected
= false;
6711 bool pf_mdd_detected
= false;
6716 if (!test_bit(__I40E_MDD_EVENT_PENDING
, &pf
->state
))
6719 /* find what triggered the MDD event */
6720 reg
= rd32(hw
, I40E_GL_MDET_TX
);
6721 if (reg
& I40E_GL_MDET_TX_VALID_MASK
) {
6722 u8 pf_num
= (reg
& I40E_GL_MDET_TX_PF_NUM_MASK
) >>
6723 I40E_GL_MDET_TX_PF_NUM_SHIFT
;
6724 u16 vf_num
= (reg
& I40E_GL_MDET_TX_VF_NUM_MASK
) >>
6725 I40E_GL_MDET_TX_VF_NUM_SHIFT
;
6726 u8 event
= (reg
& I40E_GL_MDET_TX_EVENT_MASK
) >>
6727 I40E_GL_MDET_TX_EVENT_SHIFT
;
6728 u16 queue
= ((reg
& I40E_GL_MDET_TX_QUEUE_MASK
) >>
6729 I40E_GL_MDET_TX_QUEUE_SHIFT
) -
6730 pf
->hw
.func_caps
.base_queue
;
6731 if (netif_msg_tx_err(pf
))
6732 dev_info(&pf
->pdev
->dev
, "Malicious Driver Detection event 0x%02x on TX queue %d PF number 0x%02x VF number 0x%02x\n",
6733 event
, queue
, pf_num
, vf_num
);
6734 wr32(hw
, I40E_GL_MDET_TX
, 0xffffffff);
6735 mdd_detected
= true;
6737 reg
= rd32(hw
, I40E_GL_MDET_RX
);
6738 if (reg
& I40E_GL_MDET_RX_VALID_MASK
) {
6739 u8 func
= (reg
& I40E_GL_MDET_RX_FUNCTION_MASK
) >>
6740 I40E_GL_MDET_RX_FUNCTION_SHIFT
;
6741 u8 event
= (reg
& I40E_GL_MDET_RX_EVENT_MASK
) >>
6742 I40E_GL_MDET_RX_EVENT_SHIFT
;
6743 u16 queue
= ((reg
& I40E_GL_MDET_RX_QUEUE_MASK
) >>
6744 I40E_GL_MDET_RX_QUEUE_SHIFT
) -
6745 pf
->hw
.func_caps
.base_queue
;
6746 if (netif_msg_rx_err(pf
))
6747 dev_info(&pf
->pdev
->dev
, "Malicious Driver Detection event 0x%02x on RX queue %d of function 0x%02x\n",
6748 event
, queue
, func
);
6749 wr32(hw
, I40E_GL_MDET_RX
, 0xffffffff);
6750 mdd_detected
= true;
6754 reg
= rd32(hw
, I40E_PF_MDET_TX
);
6755 if (reg
& I40E_PF_MDET_TX_VALID_MASK
) {
6756 wr32(hw
, I40E_PF_MDET_TX
, 0xFFFF);
6757 dev_info(&pf
->pdev
->dev
, "TX driver issue detected, PF reset issued\n");
6758 pf_mdd_detected
= true;
6760 reg
= rd32(hw
, I40E_PF_MDET_RX
);
6761 if (reg
& I40E_PF_MDET_RX_VALID_MASK
) {
6762 wr32(hw
, I40E_PF_MDET_RX
, 0xFFFF);
6763 dev_info(&pf
->pdev
->dev
, "RX driver issue detected, PF reset issued\n");
6764 pf_mdd_detected
= true;
6766 /* Queue belongs to the PF, initiate a reset */
6767 if (pf_mdd_detected
) {
6768 set_bit(__I40E_PF_RESET_REQUESTED
, &pf
->state
);
6769 i40e_service_event_schedule(pf
);
6773 /* see if one of the VFs needs its hand slapped */
6774 for (i
= 0; i
< pf
->num_alloc_vfs
&& mdd_detected
; i
++) {
6776 reg
= rd32(hw
, I40E_VP_MDET_TX(i
));
6777 if (reg
& I40E_VP_MDET_TX_VALID_MASK
) {
6778 wr32(hw
, I40E_VP_MDET_TX(i
), 0xFFFF);
6779 vf
->num_mdd_events
++;
6780 dev_info(&pf
->pdev
->dev
, "TX driver issue detected on VF %d\n",
6784 reg
= rd32(hw
, I40E_VP_MDET_RX(i
));
6785 if (reg
& I40E_VP_MDET_RX_VALID_MASK
) {
6786 wr32(hw
, I40E_VP_MDET_RX(i
), 0xFFFF);
6787 vf
->num_mdd_events
++;
6788 dev_info(&pf
->pdev
->dev
, "RX driver issue detected on VF %d\n",
6792 if (vf
->num_mdd_events
> I40E_DEFAULT_NUM_MDD_EVENTS_ALLOWED
) {
6793 dev_info(&pf
->pdev
->dev
,
6794 "Too many MDD events on VF %d, disabled\n", i
);
6795 dev_info(&pf
->pdev
->dev
,
6796 "Use PF Control I/F to re-enable the VF\n");
6797 set_bit(I40E_VF_STAT_DISABLED
, &vf
->vf_states
);
6801 /* re-enable mdd interrupt cause */
6802 clear_bit(__I40E_MDD_EVENT_PENDING
, &pf
->state
);
6803 reg
= rd32(hw
, I40E_PFINT_ICR0_ENA
);
6804 reg
|= I40E_PFINT_ICR0_ENA_MAL_DETECT_MASK
;
6805 wr32(hw
, I40E_PFINT_ICR0_ENA
, reg
);
6809 #ifdef CONFIG_I40E_VXLAN
6811 * i40e_sync_vxlan_filters_subtask - Sync the VSI filter list with HW
6812 * @pf: board private structure
6814 static void i40e_sync_vxlan_filters_subtask(struct i40e_pf
*pf
)
6816 struct i40e_hw
*hw
= &pf
->hw
;
6821 if (!(pf
->flags
& I40E_FLAG_VXLAN_FILTER_SYNC
))
6824 pf
->flags
&= ~I40E_FLAG_VXLAN_FILTER_SYNC
;
6826 for (i
= 0; i
< I40E_MAX_PF_UDP_OFFLOAD_PORTS
; i
++) {
6827 if (pf
->pending_vxlan_bitmap
& BIT_ULL(i
)) {
6828 pf
->pending_vxlan_bitmap
&= ~BIT_ULL(i
);
6829 port
= pf
->vxlan_ports
[i
];
6831 ret
= i40e_aq_add_udp_tunnel(hw
, ntohs(port
),
6832 I40E_AQC_TUNNEL_TYPE_VXLAN
,
6835 ret
= i40e_aq_del_udp_tunnel(hw
, i
, NULL
);
6838 dev_info(&pf
->pdev
->dev
,
6839 "%s vxlan port %d, index %d failed, err %s aq_err %s\n",
6840 port
? "add" : "delete",
6842 i40e_stat_str(&pf
->hw
, ret
),
6843 i40e_aq_str(&pf
->hw
,
6844 pf
->hw
.aq
.asq_last_status
));
6845 pf
->vxlan_ports
[i
] = 0;
6853 * i40e_service_task - Run the driver's async subtasks
6854 * @work: pointer to work_struct containing our data
6856 static void i40e_service_task(struct work_struct
*work
)
6858 struct i40e_pf
*pf
= container_of(work
,
6861 unsigned long start_time
= jiffies
;
6863 /* don't bother with service tasks if a reset is in progress */
6864 if (test_bit(__I40E_RESET_RECOVERY_PENDING
, &pf
->state
)) {
6865 i40e_service_event_complete(pf
);
6869 i40e_detect_recover_hung(pf
);
6870 i40e_reset_subtask(pf
);
6871 i40e_handle_mdd_event(pf
);
6872 i40e_vc_process_vflr_event(pf
);
6873 i40e_watchdog_subtask(pf
);
6874 i40e_fdir_reinit_subtask(pf
);
6875 i40e_sync_filters_subtask(pf
);
6876 #ifdef CONFIG_I40E_VXLAN
6877 i40e_sync_vxlan_filters_subtask(pf
);
6879 i40e_clean_adminq_subtask(pf
);
6881 i40e_service_event_complete(pf
);
6883 /* If the tasks have taken longer than one timer cycle or there
6884 * is more work to be done, reschedule the service task now
6885 * rather than wait for the timer to tick again.
6887 if (time_after(jiffies
, (start_time
+ pf
->service_timer_period
)) ||
6888 test_bit(__I40E_ADMINQ_EVENT_PENDING
, &pf
->state
) ||
6889 test_bit(__I40E_MDD_EVENT_PENDING
, &pf
->state
) ||
6890 test_bit(__I40E_VFLR_EVENT_PENDING
, &pf
->state
))
6891 i40e_service_event_schedule(pf
);
6895 * i40e_service_timer - timer callback
6896 * @data: pointer to PF struct
6898 static void i40e_service_timer(unsigned long data
)
6900 struct i40e_pf
*pf
= (struct i40e_pf
*)data
;
6902 mod_timer(&pf
->service_timer
,
6903 round_jiffies(jiffies
+ pf
->service_timer_period
));
6904 i40e_service_event_schedule(pf
);
6908 * i40e_set_num_rings_in_vsi - Determine number of rings in the VSI
6909 * @vsi: the VSI being configured
6911 static int i40e_set_num_rings_in_vsi(struct i40e_vsi
*vsi
)
6913 struct i40e_pf
*pf
= vsi
->back
;
6915 switch (vsi
->type
) {
6917 vsi
->alloc_queue_pairs
= pf
->num_lan_qps
;
6918 vsi
->num_desc
= ALIGN(I40E_DEFAULT_NUM_DESCRIPTORS
,
6919 I40E_REQ_DESCRIPTOR_MULTIPLE
);
6920 if (pf
->flags
& I40E_FLAG_MSIX_ENABLED
)
6921 vsi
->num_q_vectors
= pf
->num_lan_msix
;
6923 vsi
->num_q_vectors
= 1;
6928 vsi
->alloc_queue_pairs
= 1;
6929 vsi
->num_desc
= ALIGN(I40E_FDIR_RING_COUNT
,
6930 I40E_REQ_DESCRIPTOR_MULTIPLE
);
6931 vsi
->num_q_vectors
= 1;
6934 case I40E_VSI_VMDQ2
:
6935 vsi
->alloc_queue_pairs
= pf
->num_vmdq_qps
;
6936 vsi
->num_desc
= ALIGN(I40E_DEFAULT_NUM_DESCRIPTORS
,
6937 I40E_REQ_DESCRIPTOR_MULTIPLE
);
6938 vsi
->num_q_vectors
= pf
->num_vmdq_msix
;
6941 case I40E_VSI_SRIOV
:
6942 vsi
->alloc_queue_pairs
= pf
->num_vf_qps
;
6943 vsi
->num_desc
= ALIGN(I40E_DEFAULT_NUM_DESCRIPTORS
,
6944 I40E_REQ_DESCRIPTOR_MULTIPLE
);
6949 vsi
->alloc_queue_pairs
= pf
->num_fcoe_qps
;
6950 vsi
->num_desc
= ALIGN(I40E_DEFAULT_NUM_DESCRIPTORS
,
6951 I40E_REQ_DESCRIPTOR_MULTIPLE
);
6952 vsi
->num_q_vectors
= pf
->num_fcoe_msix
;
6955 #endif /* I40E_FCOE */
6965 * i40e_vsi_alloc_arrays - Allocate queue and vector pointer arrays for the vsi
6966 * @type: VSI pointer
6967 * @alloc_qvectors: a bool to specify if q_vectors need to be allocated.
6969 * On error: returns error code (negative)
6970 * On success: returns 0
6972 static int i40e_vsi_alloc_arrays(struct i40e_vsi
*vsi
, bool alloc_qvectors
)
6977 /* allocate memory for both Tx and Rx ring pointers */
6978 size
= sizeof(struct i40e_ring
*) * vsi
->alloc_queue_pairs
* 2;
6979 vsi
->tx_rings
= kzalloc(size
, GFP_KERNEL
);
6982 vsi
->rx_rings
= &vsi
->tx_rings
[vsi
->alloc_queue_pairs
];
6984 if (alloc_qvectors
) {
6985 /* allocate memory for q_vector pointers */
6986 size
= sizeof(struct i40e_q_vector
*) * vsi
->num_q_vectors
;
6987 vsi
->q_vectors
= kzalloc(size
, GFP_KERNEL
);
6988 if (!vsi
->q_vectors
) {
6996 kfree(vsi
->tx_rings
);
7001 * i40e_vsi_mem_alloc - Allocates the next available struct vsi in the PF
7002 * @pf: board private structure
7003 * @type: type of VSI
7005 * On error: returns error code (negative)
7006 * On success: returns vsi index in PF (positive)
7008 static int i40e_vsi_mem_alloc(struct i40e_pf
*pf
, enum i40e_vsi_type type
)
7011 struct i40e_vsi
*vsi
;
7015 /* Need to protect the allocation of the VSIs at the PF level */
7016 mutex_lock(&pf
->switch_mutex
);
7018 /* VSI list may be fragmented if VSI creation/destruction has
7019 * been happening. We can afford to do a quick scan to look
7020 * for any free VSIs in the list.
7022 * find next empty vsi slot, looping back around if necessary
7025 while (i
< pf
->num_alloc_vsi
&& pf
->vsi
[i
])
7027 if (i
>= pf
->num_alloc_vsi
) {
7029 while (i
< pf
->next_vsi
&& pf
->vsi
[i
])
7033 if (i
< pf
->num_alloc_vsi
&& !pf
->vsi
[i
]) {
7034 vsi_idx
= i
; /* Found one! */
7037 goto unlock_pf
; /* out of VSI slots! */
7041 vsi
= kzalloc(sizeof(*vsi
), GFP_KERNEL
);
7048 set_bit(__I40E_DOWN
, &vsi
->state
);
7051 vsi
->rx_itr_setting
= pf
->rx_itr_default
;
7052 vsi
->tx_itr_setting
= pf
->tx_itr_default
;
7053 vsi
->rss_table_size
= (vsi
->type
== I40E_VSI_MAIN
) ?
7054 pf
->rss_table_size
: 64;
7055 vsi
->netdev_registered
= false;
7056 vsi
->work_limit
= I40E_DEFAULT_IRQ_WORK
;
7057 INIT_LIST_HEAD(&vsi
->mac_filter_list
);
7058 vsi
->irqs_ready
= false;
7060 ret
= i40e_set_num_rings_in_vsi(vsi
);
7064 ret
= i40e_vsi_alloc_arrays(vsi
, true);
7068 /* Setup default MSIX irq handler for VSI */
7069 i40e_vsi_setup_irqhandler(vsi
, i40e_msix_clean_rings
);
7071 pf
->vsi
[vsi_idx
] = vsi
;
7076 pf
->next_vsi
= i
- 1;
7079 mutex_unlock(&pf
->switch_mutex
);
7084 * i40e_vsi_free_arrays - Free queue and vector pointer arrays for the VSI
7085 * @type: VSI pointer
7086 * @free_qvectors: a bool to specify if q_vectors need to be freed.
7088 * On error: returns error code (negative)
7089 * On success: returns 0
7091 static void i40e_vsi_free_arrays(struct i40e_vsi
*vsi
, bool free_qvectors
)
7093 /* free the ring and vector containers */
7094 if (free_qvectors
) {
7095 kfree(vsi
->q_vectors
);
7096 vsi
->q_vectors
= NULL
;
7098 kfree(vsi
->tx_rings
);
7099 vsi
->tx_rings
= NULL
;
7100 vsi
->rx_rings
= NULL
;
7104 * i40e_vsi_clear - Deallocate the VSI provided
7105 * @vsi: the VSI being un-configured
7107 static int i40e_vsi_clear(struct i40e_vsi
*vsi
)
7118 mutex_lock(&pf
->switch_mutex
);
7119 if (!pf
->vsi
[vsi
->idx
]) {
7120 dev_err(&pf
->pdev
->dev
, "pf->vsi[%d] is NULL, just free vsi[%d](%p,type %d)\n",
7121 vsi
->idx
, vsi
->idx
, vsi
, vsi
->type
);
7125 if (pf
->vsi
[vsi
->idx
] != vsi
) {
7126 dev_err(&pf
->pdev
->dev
,
7127 "pf->vsi[%d](%p, type %d) != vsi[%d](%p,type %d): no free!\n",
7128 pf
->vsi
[vsi
->idx
]->idx
,
7130 pf
->vsi
[vsi
->idx
]->type
,
7131 vsi
->idx
, vsi
, vsi
->type
);
7135 /* updates the PF for this cleared vsi */
7136 i40e_put_lump(pf
->qp_pile
, vsi
->base_queue
, vsi
->idx
);
7137 i40e_put_lump(pf
->irq_pile
, vsi
->base_vector
, vsi
->idx
);
7139 i40e_vsi_free_arrays(vsi
, true);
7141 pf
->vsi
[vsi
->idx
] = NULL
;
7142 if (vsi
->idx
< pf
->next_vsi
)
7143 pf
->next_vsi
= vsi
->idx
;
7146 mutex_unlock(&pf
->switch_mutex
);
7154 * i40e_vsi_clear_rings - Deallocates the Rx and Tx rings for the provided VSI
7155 * @vsi: the VSI being cleaned
7157 static void i40e_vsi_clear_rings(struct i40e_vsi
*vsi
)
7161 if (vsi
->tx_rings
&& vsi
->tx_rings
[0]) {
7162 for (i
= 0; i
< vsi
->alloc_queue_pairs
; i
++) {
7163 kfree_rcu(vsi
->tx_rings
[i
], rcu
);
7164 vsi
->tx_rings
[i
] = NULL
;
7165 vsi
->rx_rings
[i
] = NULL
;
7171 * i40e_alloc_rings - Allocates the Rx and Tx rings for the provided VSI
7172 * @vsi: the VSI being configured
7174 static int i40e_alloc_rings(struct i40e_vsi
*vsi
)
7176 struct i40e_ring
*tx_ring
, *rx_ring
;
7177 struct i40e_pf
*pf
= vsi
->back
;
7180 /* Set basic values in the rings to be used later during open() */
7181 for (i
= 0; i
< vsi
->alloc_queue_pairs
; i
++) {
7182 /* allocate space for both Tx and Rx in one shot */
7183 tx_ring
= kzalloc(sizeof(struct i40e_ring
) * 2, GFP_KERNEL
);
7187 tx_ring
->queue_index
= i
;
7188 tx_ring
->reg_idx
= vsi
->base_queue
+ i
;
7189 tx_ring
->ring_active
= false;
7191 tx_ring
->netdev
= vsi
->netdev
;
7192 tx_ring
->dev
= &pf
->pdev
->dev
;
7193 tx_ring
->count
= vsi
->num_desc
;
7195 tx_ring
->dcb_tc
= 0;
7196 if (vsi
->back
->flags
& I40E_FLAG_WB_ON_ITR_CAPABLE
)
7197 tx_ring
->flags
= I40E_TXR_FLAGS_WB_ON_ITR
;
7198 if (vsi
->back
->flags
& I40E_FLAG_OUTER_UDP_CSUM_CAPABLE
)
7199 tx_ring
->flags
|= I40E_TXR_FLAGS_OUTER_UDP_CSUM
;
7200 vsi
->tx_rings
[i
] = tx_ring
;
7202 rx_ring
= &tx_ring
[1];
7203 rx_ring
->queue_index
= i
;
7204 rx_ring
->reg_idx
= vsi
->base_queue
+ i
;
7205 rx_ring
->ring_active
= false;
7207 rx_ring
->netdev
= vsi
->netdev
;
7208 rx_ring
->dev
= &pf
->pdev
->dev
;
7209 rx_ring
->count
= vsi
->num_desc
;
7211 rx_ring
->dcb_tc
= 0;
7212 if (pf
->flags
& I40E_FLAG_16BYTE_RX_DESC_ENABLED
)
7213 set_ring_16byte_desc_enabled(rx_ring
);
7215 clear_ring_16byte_desc_enabled(rx_ring
);
7216 vsi
->rx_rings
[i
] = rx_ring
;
7222 i40e_vsi_clear_rings(vsi
);
7227 * i40e_reserve_msix_vectors - Reserve MSI-X vectors in the kernel
7228 * @pf: board private structure
7229 * @vectors: the number of MSI-X vectors to request
7231 * Returns the number of vectors reserved, or error
7233 static int i40e_reserve_msix_vectors(struct i40e_pf
*pf
, int vectors
)
7235 vectors
= pci_enable_msix_range(pf
->pdev
, pf
->msix_entries
,
7236 I40E_MIN_MSIX
, vectors
);
7238 dev_info(&pf
->pdev
->dev
,
7239 "MSI-X vector reservation failed: %d\n", vectors
);
7247 * i40e_init_msix - Setup the MSIX capability
7248 * @pf: board private structure
7250 * Work with the OS to set up the MSIX vectors needed.
7252 * Returns the number of vectors reserved or negative on failure
7254 static int i40e_init_msix(struct i40e_pf
*pf
)
7256 struct i40e_hw
*hw
= &pf
->hw
;
7261 if (!(pf
->flags
& I40E_FLAG_MSIX_ENABLED
))
7264 /* The number of vectors we'll request will be comprised of:
7265 * - Add 1 for "other" cause for Admin Queue events, etc.
7266 * - The number of LAN queue pairs
7267 * - Queues being used for RSS.
7268 * We don't need as many as max_rss_size vectors.
7269 * use rss_size instead in the calculation since that
7270 * is governed by number of cpus in the system.
7271 * - assumes symmetric Tx/Rx pairing
7272 * - The number of VMDq pairs
7274 * - The number of FCOE qps.
7276 * Once we count this up, try the request.
7278 * If we can't get what we want, we'll simplify to nearly nothing
7279 * and try again. If that still fails, we punt.
7281 vectors_left
= hw
->func_caps
.num_msix_vectors
;
7284 /* reserve one vector for miscellaneous handler */
7290 /* reserve vectors for the main PF traffic queues */
7291 pf
->num_lan_msix
= min_t(int, num_online_cpus(), vectors_left
);
7292 vectors_left
-= pf
->num_lan_msix
;
7293 v_budget
+= pf
->num_lan_msix
;
7295 /* reserve one vector for sideband flow director */
7296 if (pf
->flags
& I40E_FLAG_FD_SB_ENABLED
) {
7301 pf
->flags
&= ~I40E_FLAG_FD_SB_ENABLED
;
7306 /* can we reserve enough for FCoE? */
7307 if (pf
->flags
& I40E_FLAG_FCOE_ENABLED
) {
7309 pf
->num_fcoe_msix
= 0;
7310 else if (vectors_left
>= pf
->num_fcoe_qps
)
7311 pf
->num_fcoe_msix
= pf
->num_fcoe_qps
;
7313 pf
->num_fcoe_msix
= 1;
7314 v_budget
+= pf
->num_fcoe_msix
;
7315 vectors_left
-= pf
->num_fcoe_msix
;
7319 /* any vectors left over go for VMDq support */
7320 if (pf
->flags
& I40E_FLAG_VMDQ_ENABLED
) {
7321 int vmdq_vecs_wanted
= pf
->num_vmdq_vsis
* pf
->num_vmdq_qps
;
7322 int vmdq_vecs
= min_t(int, vectors_left
, vmdq_vecs_wanted
);
7324 /* if we're short on vectors for what's desired, we limit
7325 * the queues per vmdq. If this is still more than are
7326 * available, the user will need to change the number of
7327 * queues/vectors used by the PF later with the ethtool
7330 if (vmdq_vecs
< vmdq_vecs_wanted
)
7331 pf
->num_vmdq_qps
= 1;
7332 pf
->num_vmdq_msix
= pf
->num_vmdq_qps
;
7334 v_budget
+= vmdq_vecs
;
7335 vectors_left
-= vmdq_vecs
;
7338 pf
->msix_entries
= kcalloc(v_budget
, sizeof(struct msix_entry
),
7340 if (!pf
->msix_entries
)
7343 for (i
= 0; i
< v_budget
; i
++)
7344 pf
->msix_entries
[i
].entry
= i
;
7345 v_actual
= i40e_reserve_msix_vectors(pf
, v_budget
);
7347 if (v_actual
!= v_budget
) {
7348 /* If we have limited resources, we will start with no vectors
7349 * for the special features and then allocate vectors to some
7350 * of these features based on the policy and at the end disable
7351 * the features that did not get any vectors.
7354 pf
->num_fcoe_qps
= 0;
7355 pf
->num_fcoe_msix
= 0;
7357 pf
->num_vmdq_msix
= 0;
7360 if (v_actual
< I40E_MIN_MSIX
) {
7361 pf
->flags
&= ~I40E_FLAG_MSIX_ENABLED
;
7362 kfree(pf
->msix_entries
);
7363 pf
->msix_entries
= NULL
;
7366 } else if (v_actual
== I40E_MIN_MSIX
) {
7367 /* Adjust for minimal MSIX use */
7368 pf
->num_vmdq_vsis
= 0;
7369 pf
->num_vmdq_qps
= 0;
7370 pf
->num_lan_qps
= 1;
7371 pf
->num_lan_msix
= 1;
7373 } else if (v_actual
!= v_budget
) {
7376 /* reserve the misc vector */
7379 /* Scale vector usage down */
7380 pf
->num_vmdq_msix
= 1; /* force VMDqs to only one vector */
7381 pf
->num_vmdq_vsis
= 1;
7382 pf
->num_vmdq_qps
= 1;
7383 pf
->flags
&= ~I40E_FLAG_FD_SB_ENABLED
;
7385 /* partition out the remaining vectors */
7388 pf
->num_lan_msix
= 1;
7392 /* give one vector to FCoE */
7393 if (pf
->flags
& I40E_FLAG_FCOE_ENABLED
) {
7394 pf
->num_lan_msix
= 1;
7395 pf
->num_fcoe_msix
= 1;
7398 pf
->num_lan_msix
= 2;
7403 /* give one vector to FCoE */
7404 if (pf
->flags
& I40E_FLAG_FCOE_ENABLED
) {
7405 pf
->num_fcoe_msix
= 1;
7409 /* give the rest to the PF */
7410 pf
->num_lan_msix
= min_t(int, vec
, pf
->num_lan_qps
);
7415 if ((pf
->flags
& I40E_FLAG_VMDQ_ENABLED
) &&
7416 (pf
->num_vmdq_msix
== 0)) {
7417 dev_info(&pf
->pdev
->dev
, "VMDq disabled, not enough MSI-X vectors\n");
7418 pf
->flags
&= ~I40E_FLAG_VMDQ_ENABLED
;
7422 if ((pf
->flags
& I40E_FLAG_FCOE_ENABLED
) && (pf
->num_fcoe_msix
== 0)) {
7423 dev_info(&pf
->pdev
->dev
, "FCOE disabled, not enough MSI-X vectors\n");
7424 pf
->flags
&= ~I40E_FLAG_FCOE_ENABLED
;
7431 * i40e_vsi_alloc_q_vector - Allocate memory for a single interrupt vector
7432 * @vsi: the VSI being configured
7433 * @v_idx: index of the vector in the vsi struct
7435 * We allocate one q_vector. If allocation fails we return -ENOMEM.
7437 static int i40e_vsi_alloc_q_vector(struct i40e_vsi
*vsi
, int v_idx
)
7439 struct i40e_q_vector
*q_vector
;
7441 /* allocate q_vector */
7442 q_vector
= kzalloc(sizeof(struct i40e_q_vector
), GFP_KERNEL
);
7446 q_vector
->vsi
= vsi
;
7447 q_vector
->v_idx
= v_idx
;
7448 cpumask_set_cpu(v_idx
, &q_vector
->affinity_mask
);
7450 netif_napi_add(vsi
->netdev
, &q_vector
->napi
,
7451 i40e_napi_poll
, NAPI_POLL_WEIGHT
);
7453 q_vector
->rx
.latency_range
= I40E_LOW_LATENCY
;
7454 q_vector
->tx
.latency_range
= I40E_LOW_LATENCY
;
7456 /* tie q_vector and vsi together */
7457 vsi
->q_vectors
[v_idx
] = q_vector
;
7463 * i40e_vsi_alloc_q_vectors - Allocate memory for interrupt vectors
7464 * @vsi: the VSI being configured
7466 * We allocate one q_vector per queue interrupt. If allocation fails we
7469 static int i40e_vsi_alloc_q_vectors(struct i40e_vsi
*vsi
)
7471 struct i40e_pf
*pf
= vsi
->back
;
7472 int v_idx
, num_q_vectors
;
7475 /* if not MSIX, give the one vector only to the LAN VSI */
7476 if (pf
->flags
& I40E_FLAG_MSIX_ENABLED
)
7477 num_q_vectors
= vsi
->num_q_vectors
;
7478 else if (vsi
== pf
->vsi
[pf
->lan_vsi
])
7483 for (v_idx
= 0; v_idx
< num_q_vectors
; v_idx
++) {
7484 err
= i40e_vsi_alloc_q_vector(vsi
, v_idx
);
7493 i40e_free_q_vector(vsi
, v_idx
);
7499 * i40e_init_interrupt_scheme - Determine proper interrupt scheme
7500 * @pf: board private structure to initialize
7502 static int i40e_init_interrupt_scheme(struct i40e_pf
*pf
)
7507 if (pf
->flags
& I40E_FLAG_MSIX_ENABLED
) {
7508 vectors
= i40e_init_msix(pf
);
7510 pf
->flags
&= ~(I40E_FLAG_MSIX_ENABLED
|
7512 I40E_FLAG_FCOE_ENABLED
|
7514 I40E_FLAG_RSS_ENABLED
|
7515 I40E_FLAG_DCB_CAPABLE
|
7516 I40E_FLAG_SRIOV_ENABLED
|
7517 I40E_FLAG_FD_SB_ENABLED
|
7518 I40E_FLAG_FD_ATR_ENABLED
|
7519 I40E_FLAG_VMDQ_ENABLED
);
7521 /* rework the queue expectations without MSIX */
7522 i40e_determine_queue_usage(pf
);
7526 if (!(pf
->flags
& I40E_FLAG_MSIX_ENABLED
) &&
7527 (pf
->flags
& I40E_FLAG_MSI_ENABLED
)) {
7528 dev_info(&pf
->pdev
->dev
, "MSI-X not available, trying MSI\n");
7529 vectors
= pci_enable_msi(pf
->pdev
);
7531 dev_info(&pf
->pdev
->dev
, "MSI init failed - %d\n",
7533 pf
->flags
&= ~I40E_FLAG_MSI_ENABLED
;
7535 vectors
= 1; /* one MSI or Legacy vector */
7538 if (!(pf
->flags
& (I40E_FLAG_MSIX_ENABLED
| I40E_FLAG_MSI_ENABLED
)))
7539 dev_info(&pf
->pdev
->dev
, "MSI-X and MSI not available, falling back to Legacy IRQ\n");
7541 /* set up vector assignment tracking */
7542 size
= sizeof(struct i40e_lump_tracking
) + (sizeof(u16
) * vectors
);
7543 pf
->irq_pile
= kzalloc(size
, GFP_KERNEL
);
7544 if (!pf
->irq_pile
) {
7545 dev_err(&pf
->pdev
->dev
, "error allocating irq_pile memory\n");
7548 pf
->irq_pile
->num_entries
= vectors
;
7549 pf
->irq_pile
->search_hint
= 0;
7551 /* track first vector for misc interrupts, ignore return */
7552 (void)i40e_get_lump(pf
, pf
->irq_pile
, 1, I40E_PILE_VALID_BIT
- 1);
7558 * i40e_setup_misc_vector - Setup the misc vector to handle non queue events
7559 * @pf: board private structure
7561 * This sets up the handler for MSIX 0, which is used to manage the
7562 * non-queue interrupts, e.g. AdminQ and errors. This is not used
7563 * when in MSI or Legacy interrupt mode.
7565 static int i40e_setup_misc_vector(struct i40e_pf
*pf
)
7567 struct i40e_hw
*hw
= &pf
->hw
;
7570 /* Only request the irq if this is the first time through, and
7571 * not when we're rebuilding after a Reset
7573 if (!test_bit(__I40E_RESET_RECOVERY_PENDING
, &pf
->state
)) {
7574 err
= request_irq(pf
->msix_entries
[0].vector
,
7575 i40e_intr
, 0, pf
->int_name
, pf
);
7577 dev_info(&pf
->pdev
->dev
,
7578 "request_irq for %s failed: %d\n",
7584 i40e_enable_misc_int_causes(pf
);
7586 /* associate no queues to the misc vector */
7587 wr32(hw
, I40E_PFINT_LNKLST0
, I40E_QUEUE_END_OF_LIST
);
7588 wr32(hw
, I40E_PFINT_ITR0(I40E_RX_ITR
), I40E_ITR_8K
);
7592 i40e_irq_dynamic_enable_icr0(pf
);
7598 * i40e_config_rss_aq - Prepare for RSS using AQ commands
7599 * @vsi: vsi structure
7600 * @seed: RSS hash seed
7602 static int i40e_config_rss_aq(struct i40e_vsi
*vsi
, const u8
*seed
)
7604 struct i40e_aqc_get_set_rss_key_data rss_key
;
7605 struct i40e_pf
*pf
= vsi
->back
;
7606 struct i40e_hw
*hw
= &pf
->hw
;
7607 bool pf_lut
= false;
7611 memset(&rss_key
, 0, sizeof(rss_key
));
7612 memcpy(&rss_key
, seed
, sizeof(rss_key
));
7614 rss_lut
= kzalloc(pf
->rss_table_size
, GFP_KERNEL
);
7618 /* Populate the LUT with max no. of queues in round robin fashion */
7619 for (i
= 0; i
< vsi
->rss_table_size
; i
++)
7620 rss_lut
[i
] = i
% vsi
->rss_size
;
7622 ret
= i40e_aq_set_rss_key(hw
, vsi
->id
, &rss_key
);
7624 dev_info(&pf
->pdev
->dev
,
7625 "Cannot set RSS key, err %s aq_err %s\n",
7626 i40e_stat_str(&pf
->hw
, ret
),
7627 i40e_aq_str(&pf
->hw
, pf
->hw
.aq
.asq_last_status
));
7628 goto config_rss_aq_out
;
7631 if (vsi
->type
== I40E_VSI_MAIN
)
7634 ret
= i40e_aq_set_rss_lut(hw
, vsi
->id
, pf_lut
, rss_lut
,
7635 vsi
->rss_table_size
);
7637 dev_info(&pf
->pdev
->dev
,
7638 "Cannot set RSS lut, err %s aq_err %s\n",
7639 i40e_stat_str(&pf
->hw
, ret
),
7640 i40e_aq_str(&pf
->hw
, pf
->hw
.aq
.asq_last_status
));
7648 * i40e_vsi_config_rss - Prepare for VSI(VMDq) RSS if used
7649 * @vsi: VSI structure
7651 static int i40e_vsi_config_rss(struct i40e_vsi
*vsi
)
7653 u8 seed
[I40E_HKEY_ARRAY_SIZE
];
7654 struct i40e_pf
*pf
= vsi
->back
;
7656 netdev_rss_key_fill((void *)seed
, I40E_HKEY_ARRAY_SIZE
);
7657 vsi
->rss_size
= min_t(int, pf
->rss_size
, vsi
->num_queue_pairs
);
7659 if (pf
->flags
& I40E_FLAG_RSS_AQ_CAPABLE
)
7660 return i40e_config_rss_aq(vsi
, seed
);
7666 * i40e_config_rss_reg - Prepare for RSS if used
7667 * @pf: board private structure
7668 * @seed: RSS hash seed
7670 static int i40e_config_rss_reg(struct i40e_pf
*pf
, const u8
*seed
)
7672 struct i40e_vsi
*vsi
= pf
->vsi
[pf
->lan_vsi
];
7673 struct i40e_hw
*hw
= &pf
->hw
;
7674 u32
*seed_dw
= (u32
*)seed
;
7675 u32 current_queue
= 0;
7679 /* Fill out hash function seed */
7680 for (i
= 0; i
<= I40E_PFQF_HKEY_MAX_INDEX
; i
++)
7681 wr32(hw
, I40E_PFQF_HKEY(i
), seed_dw
[i
]);
7683 for (i
= 0; i
<= I40E_PFQF_HLUT_MAX_INDEX
; i
++) {
7685 for (j
= 0; j
< 4; j
++) {
7686 if (current_queue
== vsi
->rss_size
)
7688 lut
|= ((current_queue
) << (8 * j
));
7691 wr32(&pf
->hw
, I40E_PFQF_HLUT(i
), lut
);
7699 * i40e_config_rss - Prepare for RSS if used
7700 * @pf: board private structure
7702 static int i40e_config_rss(struct i40e_pf
*pf
)
7704 struct i40e_vsi
*vsi
= pf
->vsi
[pf
->lan_vsi
];
7705 u8 seed
[I40E_HKEY_ARRAY_SIZE
];
7706 struct i40e_hw
*hw
= &pf
->hw
;
7710 netdev_rss_key_fill((void *)seed
, I40E_HKEY_ARRAY_SIZE
);
7712 /* By default we enable TCP/UDP with IPv4/IPv6 ptypes */
7713 hena
= (u64
)rd32(hw
, I40E_PFQF_HENA(0)) |
7714 ((u64
)rd32(hw
, I40E_PFQF_HENA(1)) << 32);
7715 hena
|= i40e_pf_get_default_rss_hena(pf
);
7717 wr32(hw
, I40E_PFQF_HENA(0), (u32
)hena
);
7718 wr32(hw
, I40E_PFQF_HENA(1), (u32
)(hena
>> 32));
7720 vsi
->rss_size
= min_t(int, pf
->rss_size
, vsi
->num_queue_pairs
);
7722 /* Determine the RSS table size based on the hardware capabilities */
7723 reg_val
= rd32(hw
, I40E_PFQF_CTL_0
);
7724 reg_val
= (pf
->rss_table_size
== 512) ?
7725 (reg_val
| I40E_PFQF_CTL_0_HASHLUTSIZE_512
) :
7726 (reg_val
& ~I40E_PFQF_CTL_0_HASHLUTSIZE_512
);
7727 wr32(hw
, I40E_PFQF_CTL_0
, reg_val
);
7729 if (pf
->flags
& I40E_FLAG_RSS_AQ_CAPABLE
)
7730 return i40e_config_rss_aq(pf
->vsi
[pf
->lan_vsi
], seed
);
7732 return i40e_config_rss_reg(pf
, seed
);
7736 * i40e_reconfig_rss_queues - change number of queues for rss and rebuild
7737 * @pf: board private structure
7738 * @queue_count: the requested queue count for rss.
7740 * returns 0 if rss is not enabled, if enabled returns the final rss queue
7741 * count which may be different from the requested queue count.
7743 int i40e_reconfig_rss_queues(struct i40e_pf
*pf
, int queue_count
)
7745 struct i40e_vsi
*vsi
= pf
->vsi
[pf
->lan_vsi
];
7748 if (!(pf
->flags
& I40E_FLAG_RSS_ENABLED
))
7751 new_rss_size
= min_t(int, queue_count
, pf
->rss_size_max
);
7753 if (queue_count
!= vsi
->num_queue_pairs
) {
7754 vsi
->req_queue_pairs
= queue_count
;
7755 i40e_prep_for_reset(pf
);
7757 pf
->rss_size
= new_rss_size
;
7759 i40e_reset_and_rebuild(pf
, true);
7760 i40e_config_rss(pf
);
7762 dev_info(&pf
->pdev
->dev
, "RSS count: %d\n", pf
->rss_size
);
7763 return pf
->rss_size
;
7767 * i40e_get_npar_bw_setting - Retrieve BW settings for this PF partition
7768 * @pf: board private structure
7770 i40e_status
i40e_get_npar_bw_setting(struct i40e_pf
*pf
)
7773 bool min_valid
, max_valid
;
7776 status
= i40e_read_bw_from_alt_ram(&pf
->hw
, &max_bw
, &min_bw
,
7777 &min_valid
, &max_valid
);
7781 pf
->npar_min_bw
= min_bw
;
7783 pf
->npar_max_bw
= max_bw
;
7790 * i40e_set_npar_bw_setting - Set BW settings for this PF partition
7791 * @pf: board private structure
7793 i40e_status
i40e_set_npar_bw_setting(struct i40e_pf
*pf
)
7795 struct i40e_aqc_configure_partition_bw_data bw_data
;
7798 /* Set the valid bit for this PF */
7799 bw_data
.pf_valid_bits
= cpu_to_le16(BIT(pf
->hw
.pf_id
));
7800 bw_data
.max_bw
[pf
->hw
.pf_id
] = pf
->npar_max_bw
& I40E_ALT_BW_VALUE_MASK
;
7801 bw_data
.min_bw
[pf
->hw
.pf_id
] = pf
->npar_min_bw
& I40E_ALT_BW_VALUE_MASK
;
7803 /* Set the new bandwidths */
7804 status
= i40e_aq_configure_partition_bw(&pf
->hw
, &bw_data
, NULL
);
7810 * i40e_commit_npar_bw_setting - Commit BW settings for this PF partition
7811 * @pf: board private structure
7813 i40e_status
i40e_commit_npar_bw_setting(struct i40e_pf
*pf
)
7815 /* Commit temporary BW setting to permanent NVM image */
7816 enum i40e_admin_queue_err last_aq_status
;
7820 if (pf
->hw
.partition_id
!= 1) {
7821 dev_info(&pf
->pdev
->dev
,
7822 "Commit BW only works on partition 1! This is partition %d",
7823 pf
->hw
.partition_id
);
7824 ret
= I40E_NOT_SUPPORTED
;
7828 /* Acquire NVM for read access */
7829 ret
= i40e_acquire_nvm(&pf
->hw
, I40E_RESOURCE_READ
);
7830 last_aq_status
= pf
->hw
.aq
.asq_last_status
;
7832 dev_info(&pf
->pdev
->dev
,
7833 "Cannot acquire NVM for read access, err %s aq_err %s\n",
7834 i40e_stat_str(&pf
->hw
, ret
),
7835 i40e_aq_str(&pf
->hw
, last_aq_status
));
7839 /* Read word 0x10 of NVM - SW compatibility word 1 */
7840 ret
= i40e_aq_read_nvm(&pf
->hw
,
7841 I40E_SR_NVM_CONTROL_WORD
,
7842 0x10, sizeof(nvm_word
), &nvm_word
,
7844 /* Save off last admin queue command status before releasing
7847 last_aq_status
= pf
->hw
.aq
.asq_last_status
;
7848 i40e_release_nvm(&pf
->hw
);
7850 dev_info(&pf
->pdev
->dev
, "NVM read error, err %s aq_err %s\n",
7851 i40e_stat_str(&pf
->hw
, ret
),
7852 i40e_aq_str(&pf
->hw
, last_aq_status
));
7856 /* Wait a bit for NVM release to complete */
7859 /* Acquire NVM for write access */
7860 ret
= i40e_acquire_nvm(&pf
->hw
, I40E_RESOURCE_WRITE
);
7861 last_aq_status
= pf
->hw
.aq
.asq_last_status
;
7863 dev_info(&pf
->pdev
->dev
,
7864 "Cannot acquire NVM for write access, err %s aq_err %s\n",
7865 i40e_stat_str(&pf
->hw
, ret
),
7866 i40e_aq_str(&pf
->hw
, last_aq_status
));
7869 /* Write it back out unchanged to initiate update NVM,
7870 * which will force a write of the shadow (alt) RAM to
7871 * the NVM - thus storing the bandwidth values permanently.
7873 ret
= i40e_aq_update_nvm(&pf
->hw
,
7874 I40E_SR_NVM_CONTROL_WORD
,
7875 0x10, sizeof(nvm_word
),
7876 &nvm_word
, true, NULL
);
7877 /* Save off last admin queue command status before releasing
7880 last_aq_status
= pf
->hw
.aq
.asq_last_status
;
7881 i40e_release_nvm(&pf
->hw
);
7883 dev_info(&pf
->pdev
->dev
,
7884 "BW settings NOT SAVED, err %s aq_err %s\n",
7885 i40e_stat_str(&pf
->hw
, ret
),
7886 i40e_aq_str(&pf
->hw
, last_aq_status
));
7893 * i40e_sw_init - Initialize general software structures (struct i40e_pf)
7894 * @pf: board private structure to initialize
7896 * i40e_sw_init initializes the Adapter private data structure.
7897 * Fields are initialized based on PCI device information and
7898 * OS network device settings (MTU size).
7900 static int i40e_sw_init(struct i40e_pf
*pf
)
7905 pf
->msg_enable
= netif_msg_init(I40E_DEFAULT_MSG_ENABLE
,
7906 (NETIF_MSG_DRV
|NETIF_MSG_PROBE
|NETIF_MSG_LINK
));
7907 pf
->hw
.debug_mask
= pf
->msg_enable
| I40E_DEBUG_DIAG
;
7908 if (debug
!= -1 && debug
!= I40E_DEFAULT_MSG_ENABLE
) {
7909 if (I40E_DEBUG_USER
& debug
)
7910 pf
->hw
.debug_mask
= debug
;
7911 pf
->msg_enable
= netif_msg_init((debug
& ~I40E_DEBUG_USER
),
7912 I40E_DEFAULT_MSG_ENABLE
);
7915 /* Set default capability flags */
7916 pf
->flags
= I40E_FLAG_RX_CSUM_ENABLED
|
7917 I40E_FLAG_MSI_ENABLED
|
7918 I40E_FLAG_MSIX_ENABLED
;
7920 if (iommu_present(&pci_bus_type
))
7921 pf
->flags
|= I40E_FLAG_RX_PS_ENABLED
;
7923 pf
->flags
|= I40E_FLAG_RX_1BUF_ENABLED
;
7925 /* Set default ITR */
7926 pf
->rx_itr_default
= I40E_ITR_DYNAMIC
| I40E_ITR_RX_DEF
;
7927 pf
->tx_itr_default
= I40E_ITR_DYNAMIC
| I40E_ITR_TX_DEF
;
7929 /* Depending on PF configurations, it is possible that the RSS
7930 * maximum might end up larger than the available queues
7932 pf
->rss_size_max
= BIT(pf
->hw
.func_caps
.rss_table_entry_width
);
7934 pf
->rss_table_size
= pf
->hw
.func_caps
.rss_table_size
;
7935 pf
->rss_size_max
= min_t(int, pf
->rss_size_max
,
7936 pf
->hw
.func_caps
.num_tx_qp
);
7937 if (pf
->hw
.func_caps
.rss
) {
7938 pf
->flags
|= I40E_FLAG_RSS_ENABLED
;
7939 pf
->rss_size
= min_t(int, pf
->rss_size_max
, num_online_cpus());
7942 /* MFP mode enabled */
7943 if (pf
->hw
.func_caps
.npar_enable
|| pf
->hw
.func_caps
.flex10_enable
) {
7944 pf
->flags
|= I40E_FLAG_MFP_ENABLED
;
7945 dev_info(&pf
->pdev
->dev
, "MFP mode Enabled\n");
7946 if (i40e_get_npar_bw_setting(pf
))
7947 dev_warn(&pf
->pdev
->dev
,
7948 "Could not get NPAR bw settings\n");
7950 dev_info(&pf
->pdev
->dev
,
7951 "Min BW = %8.8x, Max BW = %8.8x\n",
7952 pf
->npar_min_bw
, pf
->npar_max_bw
);
7955 /* FW/NVM is not yet fixed in this regard */
7956 if ((pf
->hw
.func_caps
.fd_filters_guaranteed
> 0) ||
7957 (pf
->hw
.func_caps
.fd_filters_best_effort
> 0)) {
7958 pf
->flags
|= I40E_FLAG_FD_ATR_ENABLED
;
7959 pf
->atr_sample_rate
= I40E_DEFAULT_ATR_SAMPLE_RATE
;
7960 if (!(pf
->flags
& I40E_FLAG_MFP_ENABLED
)) {
7961 pf
->flags
|= I40E_FLAG_FD_SB_ENABLED
;
7963 dev_info(&pf
->pdev
->dev
,
7964 "Flow Director Sideband mode Disabled in MFP mode\n");
7966 pf
->fdir_pf_filter_count
=
7967 pf
->hw
.func_caps
.fd_filters_guaranteed
;
7968 pf
->hw
.fdir_shared_filter_count
=
7969 pf
->hw
.func_caps
.fd_filters_best_effort
;
7972 if (pf
->hw
.func_caps
.vmdq
) {
7973 pf
->num_vmdq_vsis
= I40E_DEFAULT_NUM_VMDQ_VSI
;
7974 pf
->flags
|= I40E_FLAG_VMDQ_ENABLED
;
7978 err
= i40e_init_pf_fcoe(pf
);
7980 dev_info(&pf
->pdev
->dev
, "init_pf_fcoe failed: %d\n", err
);
7982 #endif /* I40E_FCOE */
7983 #ifdef CONFIG_PCI_IOV
7984 if (pf
->hw
.func_caps
.num_vfs
&& pf
->hw
.partition_id
== 1) {
7985 pf
->num_vf_qps
= I40E_DEFAULT_QUEUES_PER_VF
;
7986 pf
->flags
|= I40E_FLAG_SRIOV_ENABLED
;
7987 pf
->num_req_vfs
= min_t(int,
7988 pf
->hw
.func_caps
.num_vfs
,
7991 #endif /* CONFIG_PCI_IOV */
7992 if (pf
->hw
.mac
.type
== I40E_MAC_X722
) {
7993 pf
->flags
|= I40E_FLAG_RSS_AQ_CAPABLE
|
7994 I40E_FLAG_128_QP_RSS_CAPABLE
|
7995 I40E_FLAG_HW_ATR_EVICT_CAPABLE
|
7996 I40E_FLAG_OUTER_UDP_CSUM_CAPABLE
|
7997 I40E_FLAG_WB_ON_ITR_CAPABLE
|
7998 I40E_FLAG_MULTIPLE_TCP_UDP_RSS_PCTYPE
;
8000 pf
->eeprom_version
= 0xDEAD;
8001 pf
->lan_veb
= I40E_NO_VEB
;
8002 pf
->lan_vsi
= I40E_NO_VSI
;
8004 /* By default FW has this off for performance reasons */
8005 pf
->flags
&= ~I40E_FLAG_VEB_STATS_ENABLED
;
8007 /* set up queue assignment tracking */
8008 size
= sizeof(struct i40e_lump_tracking
)
8009 + (sizeof(u16
) * pf
->hw
.func_caps
.num_tx_qp
);
8010 pf
->qp_pile
= kzalloc(size
, GFP_KERNEL
);
8015 pf
->qp_pile
->num_entries
= pf
->hw
.func_caps
.num_tx_qp
;
8016 pf
->qp_pile
->search_hint
= 0;
8018 pf
->tx_timeout_recovery_level
= 1;
8020 mutex_init(&pf
->switch_mutex
);
8022 /* If NPAR is enabled nudge the Tx scheduler */
8023 if (pf
->hw
.func_caps
.npar_enable
&& (!i40e_get_npar_bw_setting(pf
)))
8024 i40e_set_npar_bw_setting(pf
);
8031 * i40e_set_ntuple - set the ntuple feature flag and take action
8032 * @pf: board private structure to initialize
8033 * @features: the feature set that the stack is suggesting
8035 * returns a bool to indicate if reset needs to happen
8037 bool i40e_set_ntuple(struct i40e_pf
*pf
, netdev_features_t features
)
8039 bool need_reset
= false;
8041 /* Check if Flow Director n-tuple support was enabled or disabled. If
8042 * the state changed, we need to reset.
8044 if (features
& NETIF_F_NTUPLE
) {
8045 /* Enable filters and mark for reset */
8046 if (!(pf
->flags
& I40E_FLAG_FD_SB_ENABLED
))
8048 pf
->flags
|= I40E_FLAG_FD_SB_ENABLED
;
8050 /* turn off filters, mark for reset and clear SW filter list */
8051 if (pf
->flags
& I40E_FLAG_FD_SB_ENABLED
) {
8053 i40e_fdir_filter_exit(pf
);
8055 pf
->flags
&= ~I40E_FLAG_FD_SB_ENABLED
;
8056 pf
->auto_disable_flags
&= ~I40E_FLAG_FD_SB_ENABLED
;
8057 /* reset fd counters */
8058 pf
->fd_add_err
= pf
->fd_atr_cnt
= pf
->fd_tcp_rule
= 0;
8059 pf
->fdir_pf_active_filters
= 0;
8060 pf
->flags
|= I40E_FLAG_FD_ATR_ENABLED
;
8061 if (I40E_DEBUG_FD
& pf
->hw
.debug_mask
)
8062 dev_info(&pf
->pdev
->dev
, "ATR re-enabled.\n");
8063 /* if ATR was auto disabled it can be re-enabled. */
8064 if ((pf
->flags
& I40E_FLAG_FD_ATR_ENABLED
) &&
8065 (pf
->auto_disable_flags
& I40E_FLAG_FD_ATR_ENABLED
))
8066 pf
->auto_disable_flags
&= ~I40E_FLAG_FD_ATR_ENABLED
;
8072 * i40e_set_features - set the netdev feature flags
8073 * @netdev: ptr to the netdev being adjusted
8074 * @features: the feature set that the stack is suggesting
8076 static int i40e_set_features(struct net_device
*netdev
,
8077 netdev_features_t features
)
8079 struct i40e_netdev_priv
*np
= netdev_priv(netdev
);
8080 struct i40e_vsi
*vsi
= np
->vsi
;
8081 struct i40e_pf
*pf
= vsi
->back
;
8084 if (features
& NETIF_F_HW_VLAN_CTAG_RX
)
8085 i40e_vlan_stripping_enable(vsi
);
8087 i40e_vlan_stripping_disable(vsi
);
8089 need_reset
= i40e_set_ntuple(pf
, features
);
8092 i40e_do_reset(pf
, BIT_ULL(__I40E_PF_RESET_REQUESTED
));
8097 #ifdef CONFIG_I40E_VXLAN
8099 * i40e_get_vxlan_port_idx - Lookup a possibly offloaded for Rx UDP port
8100 * @pf: board private structure
8101 * @port: The UDP port to look up
8103 * Returns the index number or I40E_MAX_PF_UDP_OFFLOAD_PORTS if port not found
8105 static u8
i40e_get_vxlan_port_idx(struct i40e_pf
*pf
, __be16 port
)
8109 for (i
= 0; i
< I40E_MAX_PF_UDP_OFFLOAD_PORTS
; i
++) {
8110 if (pf
->vxlan_ports
[i
] == port
)
8118 * i40e_add_vxlan_port - Get notifications about VXLAN ports that come up
8119 * @netdev: This physical port's netdev
8120 * @sa_family: Socket Family that VXLAN is notifying us about
8121 * @port: New UDP port number that VXLAN started listening to
8123 static void i40e_add_vxlan_port(struct net_device
*netdev
,
8124 sa_family_t sa_family
, __be16 port
)
8126 struct i40e_netdev_priv
*np
= netdev_priv(netdev
);
8127 struct i40e_vsi
*vsi
= np
->vsi
;
8128 struct i40e_pf
*pf
= vsi
->back
;
8132 if (sa_family
== AF_INET6
)
8135 idx
= i40e_get_vxlan_port_idx(pf
, port
);
8137 /* Check if port already exists */
8138 if (idx
< I40E_MAX_PF_UDP_OFFLOAD_PORTS
) {
8139 netdev_info(netdev
, "vxlan port %d already offloaded\n",
8144 /* Now check if there is space to add the new port */
8145 next_idx
= i40e_get_vxlan_port_idx(pf
, 0);
8147 if (next_idx
== I40E_MAX_PF_UDP_OFFLOAD_PORTS
) {
8148 netdev_info(netdev
, "maximum number of vxlan UDP ports reached, not adding port %d\n",
8153 /* New port: add it and mark its index in the bitmap */
8154 pf
->vxlan_ports
[next_idx
] = port
;
8155 pf
->pending_vxlan_bitmap
|= BIT_ULL(next_idx
);
8156 pf
->flags
|= I40E_FLAG_VXLAN_FILTER_SYNC
;
8160 * i40e_del_vxlan_port - Get notifications about VXLAN ports that go away
8161 * @netdev: This physical port's netdev
8162 * @sa_family: Socket Family that VXLAN is notifying us about
8163 * @port: UDP port number that VXLAN stopped listening to
8165 static void i40e_del_vxlan_port(struct net_device
*netdev
,
8166 sa_family_t sa_family
, __be16 port
)
8168 struct i40e_netdev_priv
*np
= netdev_priv(netdev
);
8169 struct i40e_vsi
*vsi
= np
->vsi
;
8170 struct i40e_pf
*pf
= vsi
->back
;
8173 if (sa_family
== AF_INET6
)
8176 idx
= i40e_get_vxlan_port_idx(pf
, port
);
8178 /* Check if port already exists */
8179 if (idx
< I40E_MAX_PF_UDP_OFFLOAD_PORTS
) {
8180 /* if port exists, set it to 0 (mark for deletion)
8181 * and make it pending
8183 pf
->vxlan_ports
[idx
] = 0;
8184 pf
->pending_vxlan_bitmap
|= BIT_ULL(idx
);
8185 pf
->flags
|= I40E_FLAG_VXLAN_FILTER_SYNC
;
8187 netdev_warn(netdev
, "vxlan port %d was not found, not deleting\n",
8193 static int i40e_get_phys_port_id(struct net_device
*netdev
,
8194 struct netdev_phys_item_id
*ppid
)
8196 struct i40e_netdev_priv
*np
= netdev_priv(netdev
);
8197 struct i40e_pf
*pf
= np
->vsi
->back
;
8198 struct i40e_hw
*hw
= &pf
->hw
;
8200 if (!(pf
->flags
& I40E_FLAG_PORT_ID_VALID
))
8203 ppid
->id_len
= min_t(int, sizeof(hw
->mac
.port_addr
), sizeof(ppid
->id
));
8204 memcpy(ppid
->id
, hw
->mac
.port_addr
, ppid
->id_len
);
8210 * i40e_ndo_fdb_add - add an entry to the hardware database
8211 * @ndm: the input from the stack
8212 * @tb: pointer to array of nladdr (unused)
8213 * @dev: the net device pointer
8214 * @addr: the MAC address entry being added
8215 * @flags: instructions from stack about fdb operation
8217 static int i40e_ndo_fdb_add(struct ndmsg
*ndm
, struct nlattr
*tb
[],
8218 struct net_device
*dev
,
8219 const unsigned char *addr
, u16 vid
,
8222 struct i40e_netdev_priv
*np
= netdev_priv(dev
);
8223 struct i40e_pf
*pf
= np
->vsi
->back
;
8226 if (!(pf
->flags
& I40E_FLAG_SRIOV_ENABLED
))
8230 pr_info("%s: vlans aren't supported yet for dev_uc|mc_add()\n", dev
->name
);
8234 /* Hardware does not support aging addresses so if a
8235 * ndm_state is given only allow permanent addresses
8237 if (ndm
->ndm_state
&& !(ndm
->ndm_state
& NUD_PERMANENT
)) {
8238 netdev_info(dev
, "FDB only supports static addresses\n");
8242 if (is_unicast_ether_addr(addr
) || is_link_local_ether_addr(addr
))
8243 err
= dev_uc_add_excl(dev
, addr
);
8244 else if (is_multicast_ether_addr(addr
))
8245 err
= dev_mc_add_excl(dev
, addr
);
8249 /* Only return duplicate errors if NLM_F_EXCL is set */
8250 if (err
== -EEXIST
&& !(flags
& NLM_F_EXCL
))
8257 * i40e_ndo_bridge_setlink - Set the hardware bridge mode
8258 * @dev: the netdev being configured
8259 * @nlh: RTNL message
8261 * Inserts a new hardware bridge if not already created and
8262 * enables the bridging mode requested (VEB or VEPA). If the
8263 * hardware bridge has already been inserted and the request
8264 * is to change the mode then that requires a PF reset to
8265 * allow rebuild of the components with required hardware
8266 * bridge mode enabled.
8268 static int i40e_ndo_bridge_setlink(struct net_device
*dev
,
8269 struct nlmsghdr
*nlh
,
8272 struct i40e_netdev_priv
*np
= netdev_priv(dev
);
8273 struct i40e_vsi
*vsi
= np
->vsi
;
8274 struct i40e_pf
*pf
= vsi
->back
;
8275 struct i40e_veb
*veb
= NULL
;
8276 struct nlattr
*attr
, *br_spec
;
8279 /* Only for PF VSI for now */
8280 if (vsi
->seid
!= pf
->vsi
[pf
->lan_vsi
]->seid
)
8283 /* Find the HW bridge for PF VSI */
8284 for (i
= 0; i
< I40E_MAX_VEB
&& !veb
; i
++) {
8285 if (pf
->veb
[i
] && pf
->veb
[i
]->seid
== vsi
->uplink_seid
)
8289 br_spec
= nlmsg_find_attr(nlh
, sizeof(struct ifinfomsg
), IFLA_AF_SPEC
);
8291 nla_for_each_nested(attr
, br_spec
, rem
) {
8294 if (nla_type(attr
) != IFLA_BRIDGE_MODE
)
8297 mode
= nla_get_u16(attr
);
8298 if ((mode
!= BRIDGE_MODE_VEPA
) &&
8299 (mode
!= BRIDGE_MODE_VEB
))
8302 /* Insert a new HW bridge */
8304 veb
= i40e_veb_setup(pf
, 0, vsi
->uplink_seid
, vsi
->seid
,
8305 vsi
->tc_config
.enabled_tc
);
8307 veb
->bridge_mode
= mode
;
8308 i40e_config_bridge_mode(veb
);
8310 /* No Bridge HW offload available */
8314 } else if (mode
!= veb
->bridge_mode
) {
8315 /* Existing HW bridge but different mode needs reset */
8316 veb
->bridge_mode
= mode
;
8317 /* TODO: If no VFs or VMDq VSIs, disallow VEB mode */
8318 if (mode
== BRIDGE_MODE_VEB
)
8319 pf
->flags
|= I40E_FLAG_VEB_MODE_ENABLED
;
8321 pf
->flags
&= ~I40E_FLAG_VEB_MODE_ENABLED
;
8322 i40e_do_reset(pf
, BIT_ULL(__I40E_PF_RESET_REQUESTED
));
8331 * i40e_ndo_bridge_getlink - Get the hardware bridge mode
8334 * @seq: RTNL message seq #
8335 * @dev: the netdev being configured
8336 * @filter_mask: unused
8338 * Return the mode in which the hardware bridge is operating in
8341 static int i40e_ndo_bridge_getlink(struct sk_buff
*skb
, u32 pid
, u32 seq
,
8342 struct net_device
*dev
,
8343 u32 filter_mask
, int nlflags
)
8345 struct i40e_netdev_priv
*np
= netdev_priv(dev
);
8346 struct i40e_vsi
*vsi
= np
->vsi
;
8347 struct i40e_pf
*pf
= vsi
->back
;
8348 struct i40e_veb
*veb
= NULL
;
8351 /* Only for PF VSI for now */
8352 if (vsi
->seid
!= pf
->vsi
[pf
->lan_vsi
]->seid
)
8355 /* Find the HW bridge for the PF VSI */
8356 for (i
= 0; i
< I40E_MAX_VEB
&& !veb
; i
++) {
8357 if (pf
->veb
[i
] && pf
->veb
[i
]->seid
== vsi
->uplink_seid
)
8364 return ndo_dflt_bridge_getlink(skb
, pid
, seq
, dev
, veb
->bridge_mode
,
8365 nlflags
, 0, 0, filter_mask
, NULL
);
8368 #define I40E_MAX_TUNNEL_HDR_LEN 80
8370 * i40e_features_check - Validate encapsulated packet conforms to limits
8372 * @netdev: This physical port's netdev
8373 * @features: Offload features that the stack believes apply
8375 static netdev_features_t
i40e_features_check(struct sk_buff
*skb
,
8376 struct net_device
*dev
,
8377 netdev_features_t features
)
8379 if (skb
->encapsulation
&&
8380 (skb_inner_mac_header(skb
) - skb_transport_header(skb
) >
8381 I40E_MAX_TUNNEL_HDR_LEN
))
8382 return features
& ~(NETIF_F_ALL_CSUM
| NETIF_F_GSO_MASK
);
8387 static const struct net_device_ops i40e_netdev_ops
= {
8388 .ndo_open
= i40e_open
,
8389 .ndo_stop
= i40e_close
,
8390 .ndo_start_xmit
= i40e_lan_xmit_frame
,
8391 .ndo_get_stats64
= i40e_get_netdev_stats_struct
,
8392 .ndo_set_rx_mode
= i40e_set_rx_mode
,
8393 .ndo_validate_addr
= eth_validate_addr
,
8394 .ndo_set_mac_address
= i40e_set_mac
,
8395 .ndo_change_mtu
= i40e_change_mtu
,
8396 .ndo_do_ioctl
= i40e_ioctl
,
8397 .ndo_tx_timeout
= i40e_tx_timeout
,
8398 .ndo_vlan_rx_add_vid
= i40e_vlan_rx_add_vid
,
8399 .ndo_vlan_rx_kill_vid
= i40e_vlan_rx_kill_vid
,
8400 #ifdef CONFIG_NET_POLL_CONTROLLER
8401 .ndo_poll_controller
= i40e_netpoll
,
8403 .ndo_setup_tc
= i40e_setup_tc
,
8405 .ndo_fcoe_enable
= i40e_fcoe_enable
,
8406 .ndo_fcoe_disable
= i40e_fcoe_disable
,
8408 .ndo_set_features
= i40e_set_features
,
8409 .ndo_set_vf_mac
= i40e_ndo_set_vf_mac
,
8410 .ndo_set_vf_vlan
= i40e_ndo_set_vf_port_vlan
,
8411 .ndo_set_vf_rate
= i40e_ndo_set_vf_bw
,
8412 .ndo_get_vf_config
= i40e_ndo_get_vf_config
,
8413 .ndo_set_vf_link_state
= i40e_ndo_set_vf_link_state
,
8414 .ndo_set_vf_spoofchk
= i40e_ndo_set_vf_spoofchk
,
8415 #ifdef CONFIG_I40E_VXLAN
8416 .ndo_add_vxlan_port
= i40e_add_vxlan_port
,
8417 .ndo_del_vxlan_port
= i40e_del_vxlan_port
,
8419 .ndo_get_phys_port_id
= i40e_get_phys_port_id
,
8420 .ndo_fdb_add
= i40e_ndo_fdb_add
,
8421 .ndo_features_check
= i40e_features_check
,
8422 .ndo_bridge_getlink
= i40e_ndo_bridge_getlink
,
8423 .ndo_bridge_setlink
= i40e_ndo_bridge_setlink
,
8427 * i40e_config_netdev - Setup the netdev flags
8428 * @vsi: the VSI being configured
8430 * Returns 0 on success, negative value on failure
8432 static int i40e_config_netdev(struct i40e_vsi
*vsi
)
8434 u8 brdcast
[ETH_ALEN
] = {0xff, 0xff, 0xff, 0xff, 0xff, 0xff};
8435 struct i40e_pf
*pf
= vsi
->back
;
8436 struct i40e_hw
*hw
= &pf
->hw
;
8437 struct i40e_netdev_priv
*np
;
8438 struct net_device
*netdev
;
8439 u8 mac_addr
[ETH_ALEN
];
8442 etherdev_size
= sizeof(struct i40e_netdev_priv
);
8443 netdev
= alloc_etherdev_mq(etherdev_size
, vsi
->alloc_queue_pairs
);
8447 vsi
->netdev
= netdev
;
8448 np
= netdev_priv(netdev
);
8451 netdev
->hw_enc_features
|= NETIF_F_IP_CSUM
|
8452 NETIF_F_GSO_UDP_TUNNEL
|
8455 netdev
->features
= NETIF_F_SG
|
8459 NETIF_F_GSO_UDP_TUNNEL
|
8460 NETIF_F_HW_VLAN_CTAG_TX
|
8461 NETIF_F_HW_VLAN_CTAG_RX
|
8462 NETIF_F_HW_VLAN_CTAG_FILTER
|
8471 if (!(pf
->flags
& I40E_FLAG_MFP_ENABLED
))
8472 netdev
->features
|= NETIF_F_NTUPLE
;
8474 /* copy netdev features into list of user selectable features */
8475 netdev
->hw_features
|= netdev
->features
;
8477 if (vsi
->type
== I40E_VSI_MAIN
) {
8478 SET_NETDEV_DEV(netdev
, &pf
->pdev
->dev
);
8479 ether_addr_copy(mac_addr
, hw
->mac
.perm_addr
);
8480 /* The following steps are necessary to prevent reception
8481 * of tagged packets - some older NVM configurations load a
8482 * default a MAC-VLAN filter that accepts any tagged packet
8483 * which must be replaced by a normal filter.
8485 if (!i40e_rm_default_mac_filter(vsi
, mac_addr
))
8486 i40e_add_filter(vsi
, mac_addr
,
8487 I40E_VLAN_ANY
, false, true);
8489 /* relate the VSI_VMDQ name to the VSI_MAIN name */
8490 snprintf(netdev
->name
, IFNAMSIZ
, "%sv%%d",
8491 pf
->vsi
[pf
->lan_vsi
]->netdev
->name
);
8492 random_ether_addr(mac_addr
);
8493 i40e_add_filter(vsi
, mac_addr
, I40E_VLAN_ANY
, false, false);
8495 i40e_add_filter(vsi
, brdcast
, I40E_VLAN_ANY
, false, false);
8497 ether_addr_copy(netdev
->dev_addr
, mac_addr
);
8498 ether_addr_copy(netdev
->perm_addr
, mac_addr
);
8499 /* vlan gets same features (except vlan offload)
8500 * after any tweaks for specific VSI types
8502 netdev
->vlan_features
= netdev
->features
& ~(NETIF_F_HW_VLAN_CTAG_TX
|
8503 NETIF_F_HW_VLAN_CTAG_RX
|
8504 NETIF_F_HW_VLAN_CTAG_FILTER
);
8505 netdev
->priv_flags
|= IFF_UNICAST_FLT
;
8506 netdev
->priv_flags
|= IFF_SUPP_NOFCS
;
8507 /* Setup netdev TC information */
8508 i40e_vsi_config_netdev_tc(vsi
, vsi
->tc_config
.enabled_tc
);
8510 netdev
->netdev_ops
= &i40e_netdev_ops
;
8511 netdev
->watchdog_timeo
= 5 * HZ
;
8512 i40e_set_ethtool_ops(netdev
);
8514 i40e_fcoe_config_netdev(netdev
, vsi
);
8521 * i40e_vsi_delete - Delete a VSI from the switch
8522 * @vsi: the VSI being removed
8524 * Returns 0 on success, negative value on failure
8526 static void i40e_vsi_delete(struct i40e_vsi
*vsi
)
8528 /* remove default VSI is not allowed */
8529 if (vsi
== vsi
->back
->vsi
[vsi
->back
->lan_vsi
])
8532 i40e_aq_delete_element(&vsi
->back
->hw
, vsi
->seid
, NULL
);
8536 * i40e_is_vsi_uplink_mode_veb - Check if the VSI's uplink bridge mode is VEB
8537 * @vsi: the VSI being queried
8539 * Returns 1 if HW bridge mode is VEB and return 0 in case of VEPA mode
8541 int i40e_is_vsi_uplink_mode_veb(struct i40e_vsi
*vsi
)
8543 struct i40e_veb
*veb
;
8544 struct i40e_pf
*pf
= vsi
->back
;
8546 /* Uplink is not a bridge so default to VEB */
8547 if (vsi
->veb_idx
== I40E_NO_VEB
)
8550 veb
= pf
->veb
[vsi
->veb_idx
];
8551 /* Uplink is a bridge in VEPA mode */
8552 if (veb
&& (veb
->bridge_mode
& BRIDGE_MODE_VEPA
))
8555 /* Uplink is a bridge in VEB mode */
8560 * i40e_add_vsi - Add a VSI to the switch
8561 * @vsi: the VSI being configured
8563 * This initializes a VSI context depending on the VSI type to be added and
8564 * passes it down to the add_vsi aq command.
8566 static int i40e_add_vsi(struct i40e_vsi
*vsi
)
8569 struct i40e_mac_filter
*f
, *ftmp
;
8570 struct i40e_pf
*pf
= vsi
->back
;
8571 struct i40e_hw
*hw
= &pf
->hw
;
8572 struct i40e_vsi_context ctxt
;
8573 u8 enabled_tc
= 0x1; /* TC0 enabled */
8576 memset(&ctxt
, 0, sizeof(ctxt
));
8577 switch (vsi
->type
) {
8579 /* The PF's main VSI is already setup as part of the
8580 * device initialization, so we'll not bother with
8581 * the add_vsi call, but we will retrieve the current
8584 ctxt
.seid
= pf
->main_vsi_seid
;
8585 ctxt
.pf_num
= pf
->hw
.pf_id
;
8587 ret
= i40e_aq_get_vsi_params(&pf
->hw
, &ctxt
, NULL
);
8588 ctxt
.flags
= I40E_AQ_VSI_TYPE_PF
;
8590 dev_info(&pf
->pdev
->dev
,
8591 "couldn't get PF vsi config, err %s aq_err %s\n",
8592 i40e_stat_str(&pf
->hw
, ret
),
8593 i40e_aq_str(&pf
->hw
,
8594 pf
->hw
.aq
.asq_last_status
));
8597 vsi
->info
= ctxt
.info
;
8598 vsi
->info
.valid_sections
= 0;
8600 vsi
->seid
= ctxt
.seid
;
8601 vsi
->id
= ctxt
.vsi_number
;
8603 enabled_tc
= i40e_pf_get_tc_map(pf
);
8605 /* MFP mode setup queue map and update VSI */
8606 if ((pf
->flags
& I40E_FLAG_MFP_ENABLED
) &&
8607 !(pf
->hw
.func_caps
.iscsi
)) { /* NIC type PF */
8608 memset(&ctxt
, 0, sizeof(ctxt
));
8609 ctxt
.seid
= pf
->main_vsi_seid
;
8610 ctxt
.pf_num
= pf
->hw
.pf_id
;
8612 i40e_vsi_setup_queue_map(vsi
, &ctxt
, enabled_tc
, false);
8613 ret
= i40e_aq_update_vsi_params(hw
, &ctxt
, NULL
);
8615 dev_info(&pf
->pdev
->dev
,
8616 "update vsi failed, err %s aq_err %s\n",
8617 i40e_stat_str(&pf
->hw
, ret
),
8618 i40e_aq_str(&pf
->hw
,
8619 pf
->hw
.aq
.asq_last_status
));
8623 /* update the local VSI info queue map */
8624 i40e_vsi_update_queue_map(vsi
, &ctxt
);
8625 vsi
->info
.valid_sections
= 0;
8627 /* Default/Main VSI is only enabled for TC0
8628 * reconfigure it to enable all TCs that are
8629 * available on the port in SFP mode.
8630 * For MFP case the iSCSI PF would use this
8631 * flow to enable LAN+iSCSI TC.
8633 ret
= i40e_vsi_config_tc(vsi
, enabled_tc
);
8635 dev_info(&pf
->pdev
->dev
,
8636 "failed to configure TCs for main VSI tc_map 0x%08x, err %s aq_err %s\n",
8638 i40e_stat_str(&pf
->hw
, ret
),
8639 i40e_aq_str(&pf
->hw
,
8640 pf
->hw
.aq
.asq_last_status
));
8647 ctxt
.pf_num
= hw
->pf_id
;
8649 ctxt
.uplink_seid
= vsi
->uplink_seid
;
8650 ctxt
.connection_type
= I40E_AQ_VSI_CONN_TYPE_NORMAL
;
8651 ctxt
.flags
= I40E_AQ_VSI_TYPE_PF
;
8652 if ((pf
->flags
& I40E_FLAG_VEB_MODE_ENABLED
) &&
8653 (i40e_is_vsi_uplink_mode_veb(vsi
))) {
8654 ctxt
.info
.valid_sections
|=
8655 cpu_to_le16(I40E_AQ_VSI_PROP_SWITCH_VALID
);
8656 ctxt
.info
.switch_id
=
8657 cpu_to_le16(I40E_AQ_VSI_SW_ID_FLAG_ALLOW_LB
);
8659 i40e_vsi_setup_queue_map(vsi
, &ctxt
, enabled_tc
, true);
8662 case I40E_VSI_VMDQ2
:
8663 ctxt
.pf_num
= hw
->pf_id
;
8665 ctxt
.uplink_seid
= vsi
->uplink_seid
;
8666 ctxt
.connection_type
= I40E_AQ_VSI_CONN_TYPE_NORMAL
;
8667 ctxt
.flags
= I40E_AQ_VSI_TYPE_VMDQ2
;
8669 /* This VSI is connected to VEB so the switch_id
8670 * should be set to zero by default.
8672 if (i40e_is_vsi_uplink_mode_veb(vsi
)) {
8673 ctxt
.info
.valid_sections
|=
8674 cpu_to_le16(I40E_AQ_VSI_PROP_SWITCH_VALID
);
8675 ctxt
.info
.switch_id
=
8676 cpu_to_le16(I40E_AQ_VSI_SW_ID_FLAG_ALLOW_LB
);
8679 /* Setup the VSI tx/rx queue map for TC0 only for now */
8680 i40e_vsi_setup_queue_map(vsi
, &ctxt
, enabled_tc
, true);
8683 case I40E_VSI_SRIOV
:
8684 ctxt
.pf_num
= hw
->pf_id
;
8685 ctxt
.vf_num
= vsi
->vf_id
+ hw
->func_caps
.vf_base_id
;
8686 ctxt
.uplink_seid
= vsi
->uplink_seid
;
8687 ctxt
.connection_type
= I40E_AQ_VSI_CONN_TYPE_NORMAL
;
8688 ctxt
.flags
= I40E_AQ_VSI_TYPE_VF
;
8690 /* This VSI is connected to VEB so the switch_id
8691 * should be set to zero by default.
8693 if (i40e_is_vsi_uplink_mode_veb(vsi
)) {
8694 ctxt
.info
.valid_sections
|=
8695 cpu_to_le16(I40E_AQ_VSI_PROP_SWITCH_VALID
);
8696 ctxt
.info
.switch_id
=
8697 cpu_to_le16(I40E_AQ_VSI_SW_ID_FLAG_ALLOW_LB
);
8700 ctxt
.info
.valid_sections
|= cpu_to_le16(I40E_AQ_VSI_PROP_VLAN_VALID
);
8701 ctxt
.info
.port_vlan_flags
|= I40E_AQ_VSI_PVLAN_MODE_ALL
;
8702 if (pf
->vf
[vsi
->vf_id
].spoofchk
) {
8703 ctxt
.info
.valid_sections
|=
8704 cpu_to_le16(I40E_AQ_VSI_PROP_SECURITY_VALID
);
8705 ctxt
.info
.sec_flags
|=
8706 (I40E_AQ_VSI_SEC_FLAG_ENABLE_VLAN_CHK
|
8707 I40E_AQ_VSI_SEC_FLAG_ENABLE_MAC_CHK
);
8709 /* Setup the VSI tx/rx queue map for TC0 only for now */
8710 i40e_vsi_setup_queue_map(vsi
, &ctxt
, enabled_tc
, true);
8715 ret
= i40e_fcoe_vsi_init(vsi
, &ctxt
);
8717 dev_info(&pf
->pdev
->dev
, "failed to initialize FCoE VSI\n");
8722 #endif /* I40E_FCOE */
8727 if (vsi
->type
!= I40E_VSI_MAIN
) {
8728 ret
= i40e_aq_add_vsi(hw
, &ctxt
, NULL
);
8730 dev_info(&vsi
->back
->pdev
->dev
,
8731 "add vsi failed, err %s aq_err %s\n",
8732 i40e_stat_str(&pf
->hw
, ret
),
8733 i40e_aq_str(&pf
->hw
,
8734 pf
->hw
.aq
.asq_last_status
));
8738 vsi
->info
= ctxt
.info
;
8739 vsi
->info
.valid_sections
= 0;
8740 vsi
->seid
= ctxt
.seid
;
8741 vsi
->id
= ctxt
.vsi_number
;
8744 /* If macvlan filters already exist, force them to get loaded */
8745 list_for_each_entry_safe(f
, ftmp
, &vsi
->mac_filter_list
, list
) {
8749 if (f
->is_laa
&& vsi
->type
== I40E_VSI_MAIN
) {
8750 struct i40e_aqc_remove_macvlan_element_data element
;
8752 memset(&element
, 0, sizeof(element
));
8753 ether_addr_copy(element
.mac_addr
, f
->macaddr
);
8754 element
.flags
= I40E_AQC_MACVLAN_DEL_PERFECT_MATCH
;
8755 ret
= i40e_aq_remove_macvlan(hw
, vsi
->seid
,
8758 /* some older FW has a different default */
8760 I40E_AQC_MACVLAN_DEL_IGNORE_VLAN
;
8761 i40e_aq_remove_macvlan(hw
, vsi
->seid
,
8765 i40e_aq_mac_address_write(hw
,
8766 I40E_AQC_WRITE_TYPE_LAA_WOL
,
8771 vsi
->flags
|= I40E_VSI_FLAG_FILTER_CHANGED
;
8772 pf
->flags
|= I40E_FLAG_FILTER_SYNC
;
8775 /* Update VSI BW information */
8776 ret
= i40e_vsi_get_bw_info(vsi
);
8778 dev_info(&pf
->pdev
->dev
,
8779 "couldn't get vsi bw info, err %s aq_err %s\n",
8780 i40e_stat_str(&pf
->hw
, ret
),
8781 i40e_aq_str(&pf
->hw
, pf
->hw
.aq
.asq_last_status
));
8782 /* VSI is already added so not tearing that up */
8791 * i40e_vsi_release - Delete a VSI and free its resources
8792 * @vsi: the VSI being removed
8794 * Returns 0 on success or < 0 on error
8796 int i40e_vsi_release(struct i40e_vsi
*vsi
)
8798 struct i40e_mac_filter
*f
, *ftmp
;
8799 struct i40e_veb
*veb
= NULL
;
8806 /* release of a VEB-owner or last VSI is not allowed */
8807 if (vsi
->flags
& I40E_VSI_FLAG_VEB_OWNER
) {
8808 dev_info(&pf
->pdev
->dev
, "VSI %d has existing VEB %d\n",
8809 vsi
->seid
, vsi
->uplink_seid
);
8812 if (vsi
== pf
->vsi
[pf
->lan_vsi
] &&
8813 !test_bit(__I40E_DOWN
, &pf
->state
)) {
8814 dev_info(&pf
->pdev
->dev
, "Can't remove PF VSI\n");
8818 uplink_seid
= vsi
->uplink_seid
;
8819 if (vsi
->type
!= I40E_VSI_SRIOV
) {
8820 if (vsi
->netdev_registered
) {
8821 vsi
->netdev_registered
= false;
8823 /* results in a call to i40e_close() */
8824 unregister_netdev(vsi
->netdev
);
8827 i40e_vsi_close(vsi
);
8829 i40e_vsi_disable_irq(vsi
);
8832 list_for_each_entry_safe(f
, ftmp
, &vsi
->mac_filter_list
, list
)
8833 i40e_del_filter(vsi
, f
->macaddr
, f
->vlan
,
8834 f
->is_vf
, f
->is_netdev
);
8835 i40e_sync_vsi_filters(vsi
, false);
8837 i40e_vsi_delete(vsi
);
8838 i40e_vsi_free_q_vectors(vsi
);
8840 free_netdev(vsi
->netdev
);
8843 i40e_vsi_clear_rings(vsi
);
8844 i40e_vsi_clear(vsi
);
8846 /* If this was the last thing on the VEB, except for the
8847 * controlling VSI, remove the VEB, which puts the controlling
8848 * VSI onto the next level down in the switch.
8850 * Well, okay, there's one more exception here: don't remove
8851 * the orphan VEBs yet. We'll wait for an explicit remove request
8852 * from up the network stack.
8854 for (n
= 0, i
= 0; i
< pf
->num_alloc_vsi
; i
++) {
8856 pf
->vsi
[i
]->uplink_seid
== uplink_seid
&&
8857 (pf
->vsi
[i
]->flags
& I40E_VSI_FLAG_VEB_OWNER
) == 0) {
8858 n
++; /* count the VSIs */
8861 for (i
= 0; i
< I40E_MAX_VEB
; i
++) {
8864 if (pf
->veb
[i
]->uplink_seid
== uplink_seid
)
8865 n
++; /* count the VEBs */
8866 if (pf
->veb
[i
]->seid
== uplink_seid
)
8869 if (n
== 0 && veb
&& veb
->uplink_seid
!= 0)
8870 i40e_veb_release(veb
);
8876 * i40e_vsi_setup_vectors - Set up the q_vectors for the given VSI
8877 * @vsi: ptr to the VSI
8879 * This should only be called after i40e_vsi_mem_alloc() which allocates the
8880 * corresponding SW VSI structure and initializes num_queue_pairs for the
8881 * newly allocated VSI.
8883 * Returns 0 on success or negative on failure
8885 static int i40e_vsi_setup_vectors(struct i40e_vsi
*vsi
)
8888 struct i40e_pf
*pf
= vsi
->back
;
8890 if (vsi
->q_vectors
[0]) {
8891 dev_info(&pf
->pdev
->dev
, "VSI %d has existing q_vectors\n",
8896 if (vsi
->base_vector
) {
8897 dev_info(&pf
->pdev
->dev
, "VSI %d has non-zero base vector %d\n",
8898 vsi
->seid
, vsi
->base_vector
);
8902 ret
= i40e_vsi_alloc_q_vectors(vsi
);
8904 dev_info(&pf
->pdev
->dev
,
8905 "failed to allocate %d q_vector for VSI %d, ret=%d\n",
8906 vsi
->num_q_vectors
, vsi
->seid
, ret
);
8907 vsi
->num_q_vectors
= 0;
8908 goto vector_setup_out
;
8911 /* In Legacy mode, we do not have to get any other vector since we
8912 * piggyback on the misc/ICR0 for queue interrupts.
8914 if (!(pf
->flags
& I40E_FLAG_MSIX_ENABLED
))
8916 if (vsi
->num_q_vectors
)
8917 vsi
->base_vector
= i40e_get_lump(pf
, pf
->irq_pile
,
8918 vsi
->num_q_vectors
, vsi
->idx
);
8919 if (vsi
->base_vector
< 0) {
8920 dev_info(&pf
->pdev
->dev
,
8921 "failed to get tracking for %d vectors for VSI %d, err=%d\n",
8922 vsi
->num_q_vectors
, vsi
->seid
, vsi
->base_vector
);
8923 i40e_vsi_free_q_vectors(vsi
);
8925 goto vector_setup_out
;
8933 * i40e_vsi_reinit_setup - return and reallocate resources for a VSI
8934 * @vsi: pointer to the vsi.
8936 * This re-allocates a vsi's queue resources.
8938 * Returns pointer to the successfully allocated and configured VSI sw struct
8939 * on success, otherwise returns NULL on failure.
8941 static struct i40e_vsi
*i40e_vsi_reinit_setup(struct i40e_vsi
*vsi
)
8943 struct i40e_pf
*pf
= vsi
->back
;
8947 i40e_put_lump(pf
->qp_pile
, vsi
->base_queue
, vsi
->idx
);
8948 i40e_vsi_clear_rings(vsi
);
8950 i40e_vsi_free_arrays(vsi
, false);
8951 i40e_set_num_rings_in_vsi(vsi
);
8952 ret
= i40e_vsi_alloc_arrays(vsi
, false);
8956 ret
= i40e_get_lump(pf
, pf
->qp_pile
, vsi
->alloc_queue_pairs
, vsi
->idx
);
8958 dev_info(&pf
->pdev
->dev
,
8959 "failed to get tracking for %d queues for VSI %d err %d\n",
8960 vsi
->alloc_queue_pairs
, vsi
->seid
, ret
);
8963 vsi
->base_queue
= ret
;
8965 /* Update the FW view of the VSI. Force a reset of TC and queue
8966 * layout configurations.
8968 enabled_tc
= pf
->vsi
[pf
->lan_vsi
]->tc_config
.enabled_tc
;
8969 pf
->vsi
[pf
->lan_vsi
]->tc_config
.enabled_tc
= 0;
8970 pf
->vsi
[pf
->lan_vsi
]->seid
= pf
->main_vsi_seid
;
8971 i40e_vsi_config_tc(pf
->vsi
[pf
->lan_vsi
], enabled_tc
);
8973 /* assign it some queues */
8974 ret
= i40e_alloc_rings(vsi
);
8978 /* map all of the rings to the q_vectors */
8979 i40e_vsi_map_rings_to_vectors(vsi
);
8983 i40e_vsi_free_q_vectors(vsi
);
8984 if (vsi
->netdev_registered
) {
8985 vsi
->netdev_registered
= false;
8986 unregister_netdev(vsi
->netdev
);
8987 free_netdev(vsi
->netdev
);
8990 i40e_aq_delete_element(&pf
->hw
, vsi
->seid
, NULL
);
8992 i40e_vsi_clear(vsi
);
8997 * i40e_vsi_setup - Set up a VSI by a given type
8998 * @pf: board private structure
9000 * @uplink_seid: the switch element to link to
9001 * @param1: usage depends upon VSI type. For VF types, indicates VF id
9003 * This allocates the sw VSI structure and its queue resources, then add a VSI
9004 * to the identified VEB.
9006 * Returns pointer to the successfully allocated and configure VSI sw struct on
9007 * success, otherwise returns NULL on failure.
9009 struct i40e_vsi
*i40e_vsi_setup(struct i40e_pf
*pf
, u8 type
,
9010 u16 uplink_seid
, u32 param1
)
9012 struct i40e_vsi
*vsi
= NULL
;
9013 struct i40e_veb
*veb
= NULL
;
9017 /* The requested uplink_seid must be either
9018 * - the PF's port seid
9019 * no VEB is needed because this is the PF
9020 * or this is a Flow Director special case VSI
9021 * - seid of an existing VEB
9022 * - seid of a VSI that owns an existing VEB
9023 * - seid of a VSI that doesn't own a VEB
9024 * a new VEB is created and the VSI becomes the owner
9025 * - seid of the PF VSI, which is what creates the first VEB
9026 * this is a special case of the previous
9028 * Find which uplink_seid we were given and create a new VEB if needed
9030 for (i
= 0; i
< I40E_MAX_VEB
; i
++) {
9031 if (pf
->veb
[i
] && pf
->veb
[i
]->seid
== uplink_seid
) {
9037 if (!veb
&& uplink_seid
!= pf
->mac_seid
) {
9039 for (i
= 0; i
< pf
->num_alloc_vsi
; i
++) {
9040 if (pf
->vsi
[i
] && pf
->vsi
[i
]->seid
== uplink_seid
) {
9046 dev_info(&pf
->pdev
->dev
, "no such uplink_seid %d\n",
9051 if (vsi
->uplink_seid
== pf
->mac_seid
)
9052 veb
= i40e_veb_setup(pf
, 0, pf
->mac_seid
, vsi
->seid
,
9053 vsi
->tc_config
.enabled_tc
);
9054 else if ((vsi
->flags
& I40E_VSI_FLAG_VEB_OWNER
) == 0)
9055 veb
= i40e_veb_setup(pf
, 0, vsi
->uplink_seid
, vsi
->seid
,
9056 vsi
->tc_config
.enabled_tc
);
9058 if (vsi
->seid
!= pf
->vsi
[pf
->lan_vsi
]->seid
) {
9059 dev_info(&vsi
->back
->pdev
->dev
,
9060 "%s: New VSI creation error, uplink seid of LAN VSI expected.\n",
9064 /* We come up by default in VEPA mode if SRIOV is not
9065 * already enabled, in which case we can't force VEPA
9068 if (!(pf
->flags
& I40E_FLAG_VEB_MODE_ENABLED
)) {
9069 veb
->bridge_mode
= BRIDGE_MODE_VEPA
;
9070 pf
->flags
&= ~I40E_FLAG_VEB_MODE_ENABLED
;
9072 i40e_config_bridge_mode(veb
);
9074 for (i
= 0; i
< I40E_MAX_VEB
&& !veb
; i
++) {
9075 if (pf
->veb
[i
] && pf
->veb
[i
]->seid
== vsi
->uplink_seid
)
9079 dev_info(&pf
->pdev
->dev
, "couldn't add VEB\n");
9083 vsi
->flags
|= I40E_VSI_FLAG_VEB_OWNER
;
9084 uplink_seid
= veb
->seid
;
9087 /* get vsi sw struct */
9088 v_idx
= i40e_vsi_mem_alloc(pf
, type
);
9091 vsi
= pf
->vsi
[v_idx
];
9095 vsi
->veb_idx
= (veb
? veb
->idx
: I40E_NO_VEB
);
9097 if (type
== I40E_VSI_MAIN
)
9098 pf
->lan_vsi
= v_idx
;
9099 else if (type
== I40E_VSI_SRIOV
)
9100 vsi
->vf_id
= param1
;
9101 /* assign it some queues */
9102 ret
= i40e_get_lump(pf
, pf
->qp_pile
, vsi
->alloc_queue_pairs
,
9105 dev_info(&pf
->pdev
->dev
,
9106 "failed to get tracking for %d queues for VSI %d err=%d\n",
9107 vsi
->alloc_queue_pairs
, vsi
->seid
, ret
);
9110 vsi
->base_queue
= ret
;
9112 /* get a VSI from the hardware */
9113 vsi
->uplink_seid
= uplink_seid
;
9114 ret
= i40e_add_vsi(vsi
);
9118 switch (vsi
->type
) {
9119 /* setup the netdev if needed */
9121 case I40E_VSI_VMDQ2
:
9123 ret
= i40e_config_netdev(vsi
);
9126 ret
= register_netdev(vsi
->netdev
);
9129 vsi
->netdev_registered
= true;
9130 netif_carrier_off(vsi
->netdev
);
9131 #ifdef CONFIG_I40E_DCB
9132 /* Setup DCB netlink interface */
9133 i40e_dcbnl_setup(vsi
);
9134 #endif /* CONFIG_I40E_DCB */
9138 /* set up vectors and rings if needed */
9139 ret
= i40e_vsi_setup_vectors(vsi
);
9143 ret
= i40e_alloc_rings(vsi
);
9147 /* map all of the rings to the q_vectors */
9148 i40e_vsi_map_rings_to_vectors(vsi
);
9150 i40e_vsi_reset_stats(vsi
);
9154 /* no netdev or rings for the other VSI types */
9158 if ((pf
->flags
& I40E_FLAG_RSS_AQ_CAPABLE
) &&
9159 (vsi
->type
== I40E_VSI_VMDQ2
)) {
9160 ret
= i40e_vsi_config_rss(vsi
);
9165 i40e_vsi_free_q_vectors(vsi
);
9167 if (vsi
->netdev_registered
) {
9168 vsi
->netdev_registered
= false;
9169 unregister_netdev(vsi
->netdev
);
9170 free_netdev(vsi
->netdev
);
9174 i40e_aq_delete_element(&pf
->hw
, vsi
->seid
, NULL
);
9176 i40e_vsi_clear(vsi
);
9182 * i40e_veb_get_bw_info - Query VEB BW information
9183 * @veb: the veb to query
9185 * Query the Tx scheduler BW configuration data for given VEB
9187 static int i40e_veb_get_bw_info(struct i40e_veb
*veb
)
9189 struct i40e_aqc_query_switching_comp_ets_config_resp ets_data
;
9190 struct i40e_aqc_query_switching_comp_bw_config_resp bw_data
;
9191 struct i40e_pf
*pf
= veb
->pf
;
9192 struct i40e_hw
*hw
= &pf
->hw
;
9197 ret
= i40e_aq_query_switch_comp_bw_config(hw
, veb
->seid
,
9200 dev_info(&pf
->pdev
->dev
,
9201 "query veb bw config failed, err %s aq_err %s\n",
9202 i40e_stat_str(&pf
->hw
, ret
),
9203 i40e_aq_str(&pf
->hw
, hw
->aq
.asq_last_status
));
9207 ret
= i40e_aq_query_switch_comp_ets_config(hw
, veb
->seid
,
9210 dev_info(&pf
->pdev
->dev
,
9211 "query veb bw ets config failed, err %s aq_err %s\n",
9212 i40e_stat_str(&pf
->hw
, ret
),
9213 i40e_aq_str(&pf
->hw
, hw
->aq
.asq_last_status
));
9217 veb
->bw_limit
= le16_to_cpu(ets_data
.port_bw_limit
);
9218 veb
->bw_max_quanta
= ets_data
.tc_bw_max
;
9219 veb
->is_abs_credits
= bw_data
.absolute_credits_enable
;
9220 veb
->enabled_tc
= ets_data
.tc_valid_bits
;
9221 tc_bw_max
= le16_to_cpu(bw_data
.tc_bw_max
[0]) |
9222 (le16_to_cpu(bw_data
.tc_bw_max
[1]) << 16);
9223 for (i
= 0; i
< I40E_MAX_TRAFFIC_CLASS
; i
++) {
9224 veb
->bw_tc_share_credits
[i
] = bw_data
.tc_bw_share_credits
[i
];
9225 veb
->bw_tc_limit_credits
[i
] =
9226 le16_to_cpu(bw_data
.tc_bw_limits
[i
]);
9227 veb
->bw_tc_max_quanta
[i
] = ((tc_bw_max
>> (i
*4)) & 0x7);
9235 * i40e_veb_mem_alloc - Allocates the next available struct veb in the PF
9236 * @pf: board private structure
9238 * On error: returns error code (negative)
9239 * On success: returns vsi index in PF (positive)
9241 static int i40e_veb_mem_alloc(struct i40e_pf
*pf
)
9244 struct i40e_veb
*veb
;
9247 /* Need to protect the allocation of switch elements at the PF level */
9248 mutex_lock(&pf
->switch_mutex
);
9250 /* VEB list may be fragmented if VEB creation/destruction has
9251 * been happening. We can afford to do a quick scan to look
9252 * for any free slots in the list.
9254 * find next empty veb slot, looping back around if necessary
9257 while ((i
< I40E_MAX_VEB
) && (pf
->veb
[i
] != NULL
))
9259 if (i
>= I40E_MAX_VEB
) {
9261 goto err_alloc_veb
; /* out of VEB slots! */
9264 veb
= kzalloc(sizeof(*veb
), GFP_KERNEL
);
9271 veb
->enabled_tc
= 1;
9276 mutex_unlock(&pf
->switch_mutex
);
9281 * i40e_switch_branch_release - Delete a branch of the switch tree
9282 * @branch: where to start deleting
9284 * This uses recursion to find the tips of the branch to be
9285 * removed, deleting until we get back to and can delete this VEB.
9287 static void i40e_switch_branch_release(struct i40e_veb
*branch
)
9289 struct i40e_pf
*pf
= branch
->pf
;
9290 u16 branch_seid
= branch
->seid
;
9291 u16 veb_idx
= branch
->idx
;
9294 /* release any VEBs on this VEB - RECURSION */
9295 for (i
= 0; i
< I40E_MAX_VEB
; i
++) {
9298 if (pf
->veb
[i
]->uplink_seid
== branch
->seid
)
9299 i40e_switch_branch_release(pf
->veb
[i
]);
9302 /* Release the VSIs on this VEB, but not the owner VSI.
9304 * NOTE: Removing the last VSI on a VEB has the SIDE EFFECT of removing
9305 * the VEB itself, so don't use (*branch) after this loop.
9307 for (i
= 0; i
< pf
->num_alloc_vsi
; i
++) {
9310 if (pf
->vsi
[i
]->uplink_seid
== branch_seid
&&
9311 (pf
->vsi
[i
]->flags
& I40E_VSI_FLAG_VEB_OWNER
) == 0) {
9312 i40e_vsi_release(pf
->vsi
[i
]);
9316 /* There's one corner case where the VEB might not have been
9317 * removed, so double check it here and remove it if needed.
9318 * This case happens if the veb was created from the debugfs
9319 * commands and no VSIs were added to it.
9321 if (pf
->veb
[veb_idx
])
9322 i40e_veb_release(pf
->veb
[veb_idx
]);
9326 * i40e_veb_clear - remove veb struct
9327 * @veb: the veb to remove
9329 static void i40e_veb_clear(struct i40e_veb
*veb
)
9335 struct i40e_pf
*pf
= veb
->pf
;
9337 mutex_lock(&pf
->switch_mutex
);
9338 if (pf
->veb
[veb
->idx
] == veb
)
9339 pf
->veb
[veb
->idx
] = NULL
;
9340 mutex_unlock(&pf
->switch_mutex
);
9347 * i40e_veb_release - Delete a VEB and free its resources
9348 * @veb: the VEB being removed
9350 void i40e_veb_release(struct i40e_veb
*veb
)
9352 struct i40e_vsi
*vsi
= NULL
;
9358 /* find the remaining VSI and check for extras */
9359 for (i
= 0; i
< pf
->num_alloc_vsi
; i
++) {
9360 if (pf
->vsi
[i
] && pf
->vsi
[i
]->uplink_seid
== veb
->seid
) {
9366 dev_info(&pf
->pdev
->dev
,
9367 "can't remove VEB %d with %d VSIs left\n",
9372 /* move the remaining VSI to uplink veb */
9373 vsi
->flags
&= ~I40E_VSI_FLAG_VEB_OWNER
;
9374 if (veb
->uplink_seid
) {
9375 vsi
->uplink_seid
= veb
->uplink_seid
;
9376 if (veb
->uplink_seid
== pf
->mac_seid
)
9377 vsi
->veb_idx
= I40E_NO_VEB
;
9379 vsi
->veb_idx
= veb
->veb_idx
;
9382 vsi
->uplink_seid
= pf
->vsi
[pf
->lan_vsi
]->uplink_seid
;
9383 vsi
->veb_idx
= pf
->vsi
[pf
->lan_vsi
]->veb_idx
;
9386 i40e_aq_delete_element(&pf
->hw
, veb
->seid
, NULL
);
9387 i40e_veb_clear(veb
);
9391 * i40e_add_veb - create the VEB in the switch
9392 * @veb: the VEB to be instantiated
9393 * @vsi: the controlling VSI
9395 static int i40e_add_veb(struct i40e_veb
*veb
, struct i40e_vsi
*vsi
)
9397 struct i40e_pf
*pf
= veb
->pf
;
9398 bool is_default
= veb
->pf
->cur_promisc
;
9399 bool is_cloud
= false;
9402 /* get a VEB from the hardware */
9403 ret
= i40e_aq_add_veb(&pf
->hw
, veb
->uplink_seid
, vsi
->seid
,
9404 veb
->enabled_tc
, is_default
,
9405 is_cloud
, &veb
->seid
, NULL
);
9407 dev_info(&pf
->pdev
->dev
,
9408 "couldn't add VEB, err %s aq_err %s\n",
9409 i40e_stat_str(&pf
->hw
, ret
),
9410 i40e_aq_str(&pf
->hw
, pf
->hw
.aq
.asq_last_status
));
9414 /* get statistics counter */
9415 ret
= i40e_aq_get_veb_parameters(&pf
->hw
, veb
->seid
, NULL
, NULL
,
9416 &veb
->stats_idx
, NULL
, NULL
, NULL
);
9418 dev_info(&pf
->pdev
->dev
,
9419 "couldn't get VEB statistics idx, err %s aq_err %s\n",
9420 i40e_stat_str(&pf
->hw
, ret
),
9421 i40e_aq_str(&pf
->hw
, pf
->hw
.aq
.asq_last_status
));
9424 ret
= i40e_veb_get_bw_info(veb
);
9426 dev_info(&pf
->pdev
->dev
,
9427 "couldn't get VEB bw info, err %s aq_err %s\n",
9428 i40e_stat_str(&pf
->hw
, ret
),
9429 i40e_aq_str(&pf
->hw
, pf
->hw
.aq
.asq_last_status
));
9430 i40e_aq_delete_element(&pf
->hw
, veb
->seid
, NULL
);
9434 vsi
->uplink_seid
= veb
->seid
;
9435 vsi
->veb_idx
= veb
->idx
;
9436 vsi
->flags
|= I40E_VSI_FLAG_VEB_OWNER
;
9442 * i40e_veb_setup - Set up a VEB
9443 * @pf: board private structure
9444 * @flags: VEB setup flags
9445 * @uplink_seid: the switch element to link to
9446 * @vsi_seid: the initial VSI seid
9447 * @enabled_tc: Enabled TC bit-map
9449 * This allocates the sw VEB structure and links it into the switch
9450 * It is possible and legal for this to be a duplicate of an already
9451 * existing VEB. It is also possible for both uplink and vsi seids
9452 * to be zero, in order to create a floating VEB.
9454 * Returns pointer to the successfully allocated VEB sw struct on
9455 * success, otherwise returns NULL on failure.
9457 struct i40e_veb
*i40e_veb_setup(struct i40e_pf
*pf
, u16 flags
,
9458 u16 uplink_seid
, u16 vsi_seid
,
9461 struct i40e_veb
*veb
, *uplink_veb
= NULL
;
9462 int vsi_idx
, veb_idx
;
9465 /* if one seid is 0, the other must be 0 to create a floating relay */
9466 if ((uplink_seid
== 0 || vsi_seid
== 0) &&
9467 (uplink_seid
+ vsi_seid
!= 0)) {
9468 dev_info(&pf
->pdev
->dev
,
9469 "one, not both seid's are 0: uplink=%d vsi=%d\n",
9470 uplink_seid
, vsi_seid
);
9474 /* make sure there is such a vsi and uplink */
9475 for (vsi_idx
= 0; vsi_idx
< pf
->num_alloc_vsi
; vsi_idx
++)
9476 if (pf
->vsi
[vsi_idx
] && pf
->vsi
[vsi_idx
]->seid
== vsi_seid
)
9478 if (vsi_idx
>= pf
->num_alloc_vsi
&& vsi_seid
!= 0) {
9479 dev_info(&pf
->pdev
->dev
, "vsi seid %d not found\n",
9484 if (uplink_seid
&& uplink_seid
!= pf
->mac_seid
) {
9485 for (veb_idx
= 0; veb_idx
< I40E_MAX_VEB
; veb_idx
++) {
9486 if (pf
->veb
[veb_idx
] &&
9487 pf
->veb
[veb_idx
]->seid
== uplink_seid
) {
9488 uplink_veb
= pf
->veb
[veb_idx
];
9493 dev_info(&pf
->pdev
->dev
,
9494 "uplink seid %d not found\n", uplink_seid
);
9499 /* get veb sw struct */
9500 veb_idx
= i40e_veb_mem_alloc(pf
);
9503 veb
= pf
->veb
[veb_idx
];
9505 veb
->uplink_seid
= uplink_seid
;
9506 veb
->veb_idx
= (uplink_veb
? uplink_veb
->idx
: I40E_NO_VEB
);
9507 veb
->enabled_tc
= (enabled_tc
? enabled_tc
: 0x1);
9509 /* create the VEB in the switch */
9510 ret
= i40e_add_veb(veb
, pf
->vsi
[vsi_idx
]);
9513 if (vsi_idx
== pf
->lan_vsi
)
9514 pf
->lan_veb
= veb
->idx
;
9519 i40e_veb_clear(veb
);
9525 * i40e_setup_pf_switch_element - set PF vars based on switch type
9526 * @pf: board private structure
9527 * @ele: element we are building info from
9528 * @num_reported: total number of elements
9529 * @printconfig: should we print the contents
9531 * helper function to assist in extracting a few useful SEID values.
9533 static void i40e_setup_pf_switch_element(struct i40e_pf
*pf
,
9534 struct i40e_aqc_switch_config_element_resp
*ele
,
9535 u16 num_reported
, bool printconfig
)
9537 u16 downlink_seid
= le16_to_cpu(ele
->downlink_seid
);
9538 u16 uplink_seid
= le16_to_cpu(ele
->uplink_seid
);
9539 u8 element_type
= ele
->element_type
;
9540 u16 seid
= le16_to_cpu(ele
->seid
);
9543 dev_info(&pf
->pdev
->dev
,
9544 "type=%d seid=%d uplink=%d downlink=%d\n",
9545 element_type
, seid
, uplink_seid
, downlink_seid
);
9547 switch (element_type
) {
9548 case I40E_SWITCH_ELEMENT_TYPE_MAC
:
9549 pf
->mac_seid
= seid
;
9551 case I40E_SWITCH_ELEMENT_TYPE_VEB
:
9553 if (uplink_seid
!= pf
->mac_seid
)
9555 if (pf
->lan_veb
== I40E_NO_VEB
) {
9558 /* find existing or else empty VEB */
9559 for (v
= 0; v
< I40E_MAX_VEB
; v
++) {
9560 if (pf
->veb
[v
] && (pf
->veb
[v
]->seid
== seid
)) {
9565 if (pf
->lan_veb
== I40E_NO_VEB
) {
9566 v
= i40e_veb_mem_alloc(pf
);
9573 pf
->veb
[pf
->lan_veb
]->seid
= seid
;
9574 pf
->veb
[pf
->lan_veb
]->uplink_seid
= pf
->mac_seid
;
9575 pf
->veb
[pf
->lan_veb
]->pf
= pf
;
9576 pf
->veb
[pf
->lan_veb
]->veb_idx
= I40E_NO_VEB
;
9578 case I40E_SWITCH_ELEMENT_TYPE_VSI
:
9579 if (num_reported
!= 1)
9581 /* This is immediately after a reset so we can assume this is
9584 pf
->mac_seid
= uplink_seid
;
9585 pf
->pf_seid
= downlink_seid
;
9586 pf
->main_vsi_seid
= seid
;
9588 dev_info(&pf
->pdev
->dev
,
9589 "pf_seid=%d main_vsi_seid=%d\n",
9590 pf
->pf_seid
, pf
->main_vsi_seid
);
9592 case I40E_SWITCH_ELEMENT_TYPE_PF
:
9593 case I40E_SWITCH_ELEMENT_TYPE_VF
:
9594 case I40E_SWITCH_ELEMENT_TYPE_EMP
:
9595 case I40E_SWITCH_ELEMENT_TYPE_BMC
:
9596 case I40E_SWITCH_ELEMENT_TYPE_PE
:
9597 case I40E_SWITCH_ELEMENT_TYPE_PA
:
9598 /* ignore these for now */
9601 dev_info(&pf
->pdev
->dev
, "unknown element type=%d seid=%d\n",
9602 element_type
, seid
);
9608 * i40e_fetch_switch_configuration - Get switch config from firmware
9609 * @pf: board private structure
9610 * @printconfig: should we print the contents
9612 * Get the current switch configuration from the device and
9613 * extract a few useful SEID values.
9615 int i40e_fetch_switch_configuration(struct i40e_pf
*pf
, bool printconfig
)
9617 struct i40e_aqc_get_switch_config_resp
*sw_config
;
9623 aq_buf
= kzalloc(I40E_AQ_LARGE_BUF
, GFP_KERNEL
);
9627 sw_config
= (struct i40e_aqc_get_switch_config_resp
*)aq_buf
;
9629 u16 num_reported
, num_total
;
9631 ret
= i40e_aq_get_switch_config(&pf
->hw
, sw_config
,
9635 dev_info(&pf
->pdev
->dev
,
9636 "get switch config failed err %s aq_err %s\n",
9637 i40e_stat_str(&pf
->hw
, ret
),
9638 i40e_aq_str(&pf
->hw
,
9639 pf
->hw
.aq
.asq_last_status
));
9644 num_reported
= le16_to_cpu(sw_config
->header
.num_reported
);
9645 num_total
= le16_to_cpu(sw_config
->header
.num_total
);
9648 dev_info(&pf
->pdev
->dev
,
9649 "header: %d reported %d total\n",
9650 num_reported
, num_total
);
9652 for (i
= 0; i
< num_reported
; i
++) {
9653 struct i40e_aqc_switch_config_element_resp
*ele
=
9654 &sw_config
->element
[i
];
9656 i40e_setup_pf_switch_element(pf
, ele
, num_reported
,
9659 } while (next_seid
!= 0);
9666 * i40e_setup_pf_switch - Setup the HW switch on startup or after reset
9667 * @pf: board private structure
9668 * @reinit: if the Main VSI needs to re-initialized.
9670 * Returns 0 on success, negative value on failure
9672 static int i40e_setup_pf_switch(struct i40e_pf
*pf
, bool reinit
)
9676 /* find out what's out there already */
9677 ret
= i40e_fetch_switch_configuration(pf
, false);
9679 dev_info(&pf
->pdev
->dev
,
9680 "couldn't fetch switch config, err %s aq_err %s\n",
9681 i40e_stat_str(&pf
->hw
, ret
),
9682 i40e_aq_str(&pf
->hw
, pf
->hw
.aq
.asq_last_status
));
9685 i40e_pf_reset_stats(pf
);
9687 /* first time setup */
9688 if (pf
->lan_vsi
== I40E_NO_VSI
|| reinit
) {
9689 struct i40e_vsi
*vsi
= NULL
;
9692 /* Set up the PF VSI associated with the PF's main VSI
9693 * that is already in the HW switch
9695 if (pf
->lan_veb
!= I40E_NO_VEB
&& pf
->veb
[pf
->lan_veb
])
9696 uplink_seid
= pf
->veb
[pf
->lan_veb
]->seid
;
9698 uplink_seid
= pf
->mac_seid
;
9699 if (pf
->lan_vsi
== I40E_NO_VSI
)
9700 vsi
= i40e_vsi_setup(pf
, I40E_VSI_MAIN
, uplink_seid
, 0);
9702 vsi
= i40e_vsi_reinit_setup(pf
->vsi
[pf
->lan_vsi
]);
9704 dev_info(&pf
->pdev
->dev
, "setup of MAIN VSI failed\n");
9705 i40e_fdir_teardown(pf
);
9709 /* force a reset of TC and queue layout configurations */
9710 u8 enabled_tc
= pf
->vsi
[pf
->lan_vsi
]->tc_config
.enabled_tc
;
9711 pf
->vsi
[pf
->lan_vsi
]->tc_config
.enabled_tc
= 0;
9712 pf
->vsi
[pf
->lan_vsi
]->seid
= pf
->main_vsi_seid
;
9713 i40e_vsi_config_tc(pf
->vsi
[pf
->lan_vsi
], enabled_tc
);
9715 i40e_vlan_stripping_disable(pf
->vsi
[pf
->lan_vsi
]);
9717 i40e_fdir_sb_setup(pf
);
9719 /* Setup static PF queue filter control settings */
9720 ret
= i40e_setup_pf_filter_control(pf
);
9722 dev_info(&pf
->pdev
->dev
, "setup_pf_filter_control failed: %d\n",
9724 /* Failure here should not stop continuing other steps */
9727 /* enable RSS in the HW, even for only one queue, as the stack can use
9730 if ((pf
->flags
& I40E_FLAG_RSS_ENABLED
))
9731 i40e_config_rss(pf
);
9733 /* fill in link information and enable LSE reporting */
9734 i40e_aq_get_link_info(&pf
->hw
, true, NULL
, NULL
);
9735 i40e_link_event(pf
);
9737 /* Initialize user-specific link properties */
9738 pf
->fc_autoneg_status
= ((pf
->hw
.phy
.link_info
.an_info
&
9739 I40E_AQ_AN_COMPLETED
) ? true : false);
9747 * i40e_determine_queue_usage - Work out queue distribution
9748 * @pf: board private structure
9750 static void i40e_determine_queue_usage(struct i40e_pf
*pf
)
9754 pf
->num_lan_qps
= 0;
9756 pf
->num_fcoe_qps
= 0;
9759 /* Find the max queues to be put into basic use. We'll always be
9760 * using TC0, whether or not DCB is running, and TC0 will get the
9763 queues_left
= pf
->hw
.func_caps
.num_tx_qp
;
9765 if ((queues_left
== 1) ||
9766 !(pf
->flags
& I40E_FLAG_MSIX_ENABLED
)) {
9767 /* one qp for PF, no queues for anything else */
9769 pf
->rss_size
= pf
->num_lan_qps
= 1;
9771 /* make sure all the fancies are disabled */
9772 pf
->flags
&= ~(I40E_FLAG_RSS_ENABLED
|
9774 I40E_FLAG_FCOE_ENABLED
|
9776 I40E_FLAG_FD_SB_ENABLED
|
9777 I40E_FLAG_FD_ATR_ENABLED
|
9778 I40E_FLAG_DCB_CAPABLE
|
9779 I40E_FLAG_SRIOV_ENABLED
|
9780 I40E_FLAG_VMDQ_ENABLED
);
9781 } else if (!(pf
->flags
& (I40E_FLAG_RSS_ENABLED
|
9782 I40E_FLAG_FD_SB_ENABLED
|
9783 I40E_FLAG_FD_ATR_ENABLED
|
9784 I40E_FLAG_DCB_CAPABLE
))) {
9786 pf
->rss_size
= pf
->num_lan_qps
= 1;
9787 queues_left
-= pf
->num_lan_qps
;
9789 pf
->flags
&= ~(I40E_FLAG_RSS_ENABLED
|
9791 I40E_FLAG_FCOE_ENABLED
|
9793 I40E_FLAG_FD_SB_ENABLED
|
9794 I40E_FLAG_FD_ATR_ENABLED
|
9795 I40E_FLAG_DCB_ENABLED
|
9796 I40E_FLAG_VMDQ_ENABLED
);
9798 /* Not enough queues for all TCs */
9799 if ((pf
->flags
& I40E_FLAG_DCB_CAPABLE
) &&
9800 (queues_left
< I40E_MAX_TRAFFIC_CLASS
)) {
9801 pf
->flags
&= ~I40E_FLAG_DCB_CAPABLE
;
9802 dev_info(&pf
->pdev
->dev
, "not enough queues for DCB. DCB is disabled.\n");
9804 pf
->num_lan_qps
= max_t(int, pf
->rss_size_max
,
9806 pf
->num_lan_qps
= min_t(int, pf
->num_lan_qps
,
9807 pf
->hw
.func_caps
.num_tx_qp
);
9809 queues_left
-= pf
->num_lan_qps
;
9813 if (pf
->flags
& I40E_FLAG_FCOE_ENABLED
) {
9814 if (I40E_DEFAULT_FCOE
<= queues_left
) {
9815 pf
->num_fcoe_qps
= I40E_DEFAULT_FCOE
;
9816 } else if (I40E_MINIMUM_FCOE
<= queues_left
) {
9817 pf
->num_fcoe_qps
= I40E_MINIMUM_FCOE
;
9819 pf
->num_fcoe_qps
= 0;
9820 pf
->flags
&= ~I40E_FLAG_FCOE_ENABLED
;
9821 dev_info(&pf
->pdev
->dev
, "not enough queues for FCoE. FCoE feature will be disabled\n");
9824 queues_left
-= pf
->num_fcoe_qps
;
9828 if (pf
->flags
& I40E_FLAG_FD_SB_ENABLED
) {
9829 if (queues_left
> 1) {
9830 queues_left
-= 1; /* save 1 queue for FD */
9832 pf
->flags
&= ~I40E_FLAG_FD_SB_ENABLED
;
9833 dev_info(&pf
->pdev
->dev
, "not enough queues for Flow Director. Flow Director feature is disabled\n");
9837 if ((pf
->flags
& I40E_FLAG_SRIOV_ENABLED
) &&
9838 pf
->num_vf_qps
&& pf
->num_req_vfs
&& queues_left
) {
9839 pf
->num_req_vfs
= min_t(int, pf
->num_req_vfs
,
9840 (queues_left
/ pf
->num_vf_qps
));
9841 queues_left
-= (pf
->num_req_vfs
* pf
->num_vf_qps
);
9844 if ((pf
->flags
& I40E_FLAG_VMDQ_ENABLED
) &&
9845 pf
->num_vmdq_vsis
&& pf
->num_vmdq_qps
&& queues_left
) {
9846 pf
->num_vmdq_vsis
= min_t(int, pf
->num_vmdq_vsis
,
9847 (queues_left
/ pf
->num_vmdq_qps
));
9848 queues_left
-= (pf
->num_vmdq_vsis
* pf
->num_vmdq_qps
);
9851 pf
->queues_left
= queues_left
;
9853 dev_info(&pf
->pdev
->dev
, "fcoe queues = %d\n", pf
->num_fcoe_qps
);
9858 * i40e_setup_pf_filter_control - Setup PF static filter control
9859 * @pf: PF to be setup
9861 * i40e_setup_pf_filter_control sets up a PF's initial filter control
9862 * settings. If PE/FCoE are enabled then it will also set the per PF
9863 * based filter sizes required for them. It also enables Flow director,
9864 * ethertype and macvlan type filter settings for the pf.
9866 * Returns 0 on success, negative on failure
9868 static int i40e_setup_pf_filter_control(struct i40e_pf
*pf
)
9870 struct i40e_filter_control_settings
*settings
= &pf
->filter_settings
;
9872 settings
->hash_lut_size
= I40E_HASH_LUT_SIZE_128
;
9874 /* Flow Director is enabled */
9875 if (pf
->flags
& (I40E_FLAG_FD_SB_ENABLED
| I40E_FLAG_FD_ATR_ENABLED
))
9876 settings
->enable_fdir
= true;
9878 /* Ethtype and MACVLAN filters enabled for PF */
9879 settings
->enable_ethtype
= true;
9880 settings
->enable_macvlan
= true;
9882 if (i40e_set_filter_control(&pf
->hw
, settings
))
9888 #define INFO_STRING_LEN 255
9889 static void i40e_print_features(struct i40e_pf
*pf
)
9891 struct i40e_hw
*hw
= &pf
->hw
;
9894 string
= kzalloc(INFO_STRING_LEN
, GFP_KERNEL
);
9896 dev_err(&pf
->pdev
->dev
, "Features string allocation failed\n");
9902 buf
+= sprintf(string
, "Features: PF-id[%d] ", hw
->pf_id
);
9903 #ifdef CONFIG_PCI_IOV
9904 buf
+= sprintf(buf
, "VFs: %d ", pf
->num_req_vfs
);
9906 buf
+= sprintf(buf
, "VSIs: %d QP: %d RX: %s ",
9907 pf
->hw
.func_caps
.num_vsis
,
9908 pf
->vsi
[pf
->lan_vsi
]->num_queue_pairs
,
9909 pf
->flags
& I40E_FLAG_RX_PS_ENABLED
? "PS" : "1BUF");
9911 if (pf
->flags
& I40E_FLAG_RSS_ENABLED
)
9912 buf
+= sprintf(buf
, "RSS ");
9913 if (pf
->flags
& I40E_FLAG_FD_ATR_ENABLED
)
9914 buf
+= sprintf(buf
, "FD_ATR ");
9915 if (pf
->flags
& I40E_FLAG_FD_SB_ENABLED
) {
9916 buf
+= sprintf(buf
, "FD_SB ");
9917 buf
+= sprintf(buf
, "NTUPLE ");
9919 if (pf
->flags
& I40E_FLAG_DCB_CAPABLE
)
9920 buf
+= sprintf(buf
, "DCB ");
9921 if (pf
->flags
& I40E_FLAG_PTP
)
9922 buf
+= sprintf(buf
, "PTP ");
9924 if (pf
->flags
& I40E_FLAG_FCOE_ENABLED
)
9925 buf
+= sprintf(buf
, "FCOE ");
9928 BUG_ON(buf
> (string
+ INFO_STRING_LEN
));
9929 dev_info(&pf
->pdev
->dev
, "%s\n", string
);
9934 * i40e_probe - Device initialization routine
9935 * @pdev: PCI device information struct
9936 * @ent: entry in i40e_pci_tbl
9938 * i40e_probe initializes a PF identified by a pci_dev structure.
9939 * The OS initialization, configuring of the PF private structure,
9940 * and a hardware reset occur.
9942 * Returns 0 on success, negative on failure
9944 static int i40e_probe(struct pci_dev
*pdev
, const struct pci_device_id
*ent
)
9946 struct i40e_aq_get_phy_abilities_resp abilities
;
9949 static u16 pfs_found
;
9955 err
= pci_enable_device_mem(pdev
);
9959 /* set up for high or low dma */
9960 err
= dma_set_mask_and_coherent(&pdev
->dev
, DMA_BIT_MASK(64));
9962 err
= dma_set_mask_and_coherent(&pdev
->dev
, DMA_BIT_MASK(32));
9965 "DMA configuration failed: 0x%x\n", err
);
9970 /* set up pci connections */
9971 err
= pci_request_selected_regions(pdev
, pci_select_bars(pdev
,
9972 IORESOURCE_MEM
), i40e_driver_name
);
9974 dev_info(&pdev
->dev
,
9975 "pci_request_selected_regions failed %d\n", err
);
9979 pci_enable_pcie_error_reporting(pdev
);
9980 pci_set_master(pdev
);
9982 /* Now that we have a PCI connection, we need to do the
9983 * low level device setup. This is primarily setting up
9984 * the Admin Queue structures and then querying for the
9985 * device's current profile information.
9987 pf
= kzalloc(sizeof(*pf
), GFP_KERNEL
);
9994 set_bit(__I40E_DOWN
, &pf
->state
);
9999 pf
->ioremap_len
= min_t(int, pci_resource_len(pdev
, 0),
10000 I40E_MAX_CSR_SPACE
);
10002 hw
->hw_addr
= ioremap(pci_resource_start(pdev
, 0), pf
->ioremap_len
);
10003 if (!hw
->hw_addr
) {
10005 dev_info(&pdev
->dev
, "ioremap(0x%04x, 0x%04x) failed: 0x%x\n",
10006 (unsigned int)pci_resource_start(pdev
, 0),
10007 pf
->ioremap_len
, err
);
10010 hw
->vendor_id
= pdev
->vendor
;
10011 hw
->device_id
= pdev
->device
;
10012 pci_read_config_byte(pdev
, PCI_REVISION_ID
, &hw
->revision_id
);
10013 hw
->subsystem_vendor_id
= pdev
->subsystem_vendor
;
10014 hw
->subsystem_device_id
= pdev
->subsystem_device
;
10015 hw
->bus
.device
= PCI_SLOT(pdev
->devfn
);
10016 hw
->bus
.func
= PCI_FUNC(pdev
->devfn
);
10017 pf
->instance
= pfs_found
;
10020 pf
->msg_enable
= pf
->hw
.debug_mask
;
10021 pf
->msg_enable
= debug
;
10024 /* do a special CORER for clearing PXE mode once at init */
10025 if (hw
->revision_id
== 0 &&
10026 (rd32(hw
, I40E_GLLAN_RCTL_0
) & I40E_GLLAN_RCTL_0_PXE_MODE_MASK
)) {
10027 wr32(hw
, I40E_GLGEN_RTRIG
, I40E_GLGEN_RTRIG_CORER_MASK
);
10032 i40e_clear_pxe_mode(hw
);
10035 /* Reset here to make sure all is clean and to define PF 'n' */
10037 err
= i40e_pf_reset(hw
);
10039 dev_info(&pdev
->dev
, "Initial pf_reset failed: %d\n", err
);
10044 hw
->aq
.num_arq_entries
= I40E_AQ_LEN
;
10045 hw
->aq
.num_asq_entries
= I40E_AQ_LEN
;
10046 hw
->aq
.arq_buf_size
= I40E_MAX_AQ_BUF_SIZE
;
10047 hw
->aq
.asq_buf_size
= I40E_MAX_AQ_BUF_SIZE
;
10048 pf
->adminq_work_limit
= I40E_AQ_WORK_LIMIT
;
10050 snprintf(pf
->int_name
, sizeof(pf
->int_name
) - 1,
10052 dev_driver_string(&pf
->pdev
->dev
), dev_name(&pdev
->dev
));
10054 err
= i40e_init_shared_code(hw
);
10056 dev_warn(&pdev
->dev
, "unidentified MAC or BLANK NVM: %d\n",
10061 /* set up a default setting for link flow control */
10062 pf
->hw
.fc
.requested_mode
= I40E_FC_NONE
;
10064 err
= i40e_init_adminq(hw
);
10065 dev_info(&pdev
->dev
, "%s\n", i40e_fw_version_str(hw
));
10067 dev_info(&pdev
->dev
,
10068 "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");
10072 if (hw
->aq
.api_maj_ver
== I40E_FW_API_VERSION_MAJOR
&&
10073 hw
->aq
.api_min_ver
> I40E_FW_API_VERSION_MINOR
)
10074 dev_info(&pdev
->dev
,
10075 "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");
10076 else if (hw
->aq
.api_maj_ver
< I40E_FW_API_VERSION_MAJOR
||
10077 hw
->aq
.api_min_ver
< (I40E_FW_API_VERSION_MINOR
- 1))
10078 dev_info(&pdev
->dev
,
10079 "The driver for the device detected an older version of the NVM image than expected. Please update the NVM image.\n");
10081 i40e_verify_eeprom(pf
);
10083 /* Rev 0 hardware was never productized */
10084 if (hw
->revision_id
< 1)
10085 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");
10087 i40e_clear_pxe_mode(hw
);
10088 err
= i40e_get_capabilities(pf
);
10090 goto err_adminq_setup
;
10092 err
= i40e_sw_init(pf
);
10094 dev_info(&pdev
->dev
, "sw_init failed: %d\n", err
);
10098 err
= i40e_init_lan_hmc(hw
, hw
->func_caps
.num_tx_qp
,
10099 hw
->func_caps
.num_rx_qp
,
10100 pf
->fcoe_hmc_cntx_num
, pf
->fcoe_hmc_filt_num
);
10102 dev_info(&pdev
->dev
, "init_lan_hmc failed: %d\n", err
);
10103 goto err_init_lan_hmc
;
10106 err
= i40e_configure_lan_hmc(hw
, I40E_HMC_MODEL_DIRECT_ONLY
);
10108 dev_info(&pdev
->dev
, "configure_lan_hmc failed: %d\n", err
);
10110 goto err_configure_lan_hmc
;
10113 /* Disable LLDP for NICs that have firmware versions lower than v4.3.
10114 * Ignore error return codes because if it was already disabled via
10115 * hardware settings this will fail
10117 if (((pf
->hw
.aq
.fw_maj_ver
== 4) && (pf
->hw
.aq
.fw_min_ver
< 3)) ||
10118 (pf
->hw
.aq
.fw_maj_ver
< 4)) {
10119 dev_info(&pdev
->dev
, "Stopping firmware LLDP agent.\n");
10120 i40e_aq_stop_lldp(hw
, true, NULL
);
10123 i40e_get_mac_addr(hw
, hw
->mac
.addr
);
10124 if (!is_valid_ether_addr(hw
->mac
.addr
)) {
10125 dev_info(&pdev
->dev
, "invalid MAC address %pM\n", hw
->mac
.addr
);
10129 dev_info(&pdev
->dev
, "MAC address: %pM\n", hw
->mac
.addr
);
10130 ether_addr_copy(hw
->mac
.perm_addr
, hw
->mac
.addr
);
10131 i40e_get_port_mac_addr(hw
, hw
->mac
.port_addr
);
10132 if (is_valid_ether_addr(hw
->mac
.port_addr
))
10133 pf
->flags
|= I40E_FLAG_PORT_ID_VALID
;
10135 err
= i40e_get_san_mac_addr(hw
, hw
->mac
.san_addr
);
10137 dev_info(&pdev
->dev
,
10138 "(non-fatal) SAN MAC retrieval failed: %d\n", err
);
10139 if (!is_valid_ether_addr(hw
->mac
.san_addr
)) {
10140 dev_warn(&pdev
->dev
, "invalid SAN MAC address %pM, falling back to LAN MAC\n",
10142 ether_addr_copy(hw
->mac
.san_addr
, hw
->mac
.addr
);
10144 dev_info(&pf
->pdev
->dev
, "SAN MAC: %pM\n", hw
->mac
.san_addr
);
10145 #endif /* I40E_FCOE */
10147 pci_set_drvdata(pdev
, pf
);
10148 pci_save_state(pdev
);
10149 #ifdef CONFIG_I40E_DCB
10150 err
= i40e_init_pf_dcb(pf
);
10152 dev_info(&pdev
->dev
, "DCB init failed %d, disabled\n", err
);
10153 pf
->flags
&= ~I40E_FLAG_DCB_CAPABLE
;
10154 /* Continue without DCB enabled */
10156 #endif /* CONFIG_I40E_DCB */
10158 /* set up periodic task facility */
10159 setup_timer(&pf
->service_timer
, i40e_service_timer
, (unsigned long)pf
);
10160 pf
->service_timer_period
= HZ
;
10162 INIT_WORK(&pf
->service_task
, i40e_service_task
);
10163 clear_bit(__I40E_SERVICE_SCHED
, &pf
->state
);
10164 pf
->flags
|= I40E_FLAG_NEED_LINK_UPDATE
;
10166 /* WoL defaults to disabled */
10167 pf
->wol_en
= false;
10168 device_set_wakeup_enable(&pf
->pdev
->dev
, pf
->wol_en
);
10170 /* set up the main switch operations */
10171 i40e_determine_queue_usage(pf
);
10172 err
= i40e_init_interrupt_scheme(pf
);
10174 goto err_switch_setup
;
10176 /* The number of VSIs reported by the FW is the minimum guaranteed
10177 * to us; HW supports far more and we share the remaining pool with
10178 * the other PFs. We allocate space for more than the guarantee with
10179 * the understanding that we might not get them all later.
10181 if (pf
->hw
.func_caps
.num_vsis
< I40E_MIN_VSI_ALLOC
)
10182 pf
->num_alloc_vsi
= I40E_MIN_VSI_ALLOC
;
10184 pf
->num_alloc_vsi
= pf
->hw
.func_caps
.num_vsis
;
10186 /* Set up the *vsi struct and our local tracking of the MAIN PF vsi. */
10187 len
= sizeof(struct i40e_vsi
*) * pf
->num_alloc_vsi
;
10188 pf
->vsi
= kzalloc(len
, GFP_KERNEL
);
10191 goto err_switch_setup
;
10194 #ifdef CONFIG_PCI_IOV
10195 /* prep for VF support */
10196 if ((pf
->flags
& I40E_FLAG_SRIOV_ENABLED
) &&
10197 (pf
->flags
& I40E_FLAG_MSIX_ENABLED
) &&
10198 !test_bit(__I40E_BAD_EEPROM
, &pf
->state
)) {
10199 if (pci_num_vf(pdev
))
10200 pf
->flags
|= I40E_FLAG_VEB_MODE_ENABLED
;
10203 err
= i40e_setup_pf_switch(pf
, false);
10205 dev_info(&pdev
->dev
, "setup_pf_switch failed: %d\n", err
);
10208 /* if FDIR VSI was set up, start it now */
10209 for (i
= 0; i
< pf
->num_alloc_vsi
; i
++) {
10210 if (pf
->vsi
[i
] && pf
->vsi
[i
]->type
== I40E_VSI_FDIR
) {
10211 i40e_vsi_open(pf
->vsi
[i
]);
10216 /* driver is only interested in link up/down and module qualification
10217 * reports from firmware
10219 err
= i40e_aq_set_phy_int_mask(&pf
->hw
,
10220 I40E_AQ_EVENT_LINK_UPDOWN
|
10221 I40E_AQ_EVENT_MODULE_QUAL_FAIL
, NULL
);
10223 dev_info(&pf
->pdev
->dev
, "set phy mask fail, err %s aq_err %s\n",
10224 i40e_stat_str(&pf
->hw
, err
),
10225 i40e_aq_str(&pf
->hw
, pf
->hw
.aq
.asq_last_status
));
10227 if (((pf
->hw
.aq
.fw_maj_ver
== 4) && (pf
->hw
.aq
.fw_min_ver
< 33)) ||
10228 (pf
->hw
.aq
.fw_maj_ver
< 4)) {
10230 err
= i40e_aq_set_link_restart_an(&pf
->hw
, true, NULL
);
10232 dev_info(&pf
->pdev
->dev
, "link restart failed, err %s aq_err %s\n",
10233 i40e_stat_str(&pf
->hw
, err
),
10234 i40e_aq_str(&pf
->hw
,
10235 pf
->hw
.aq
.asq_last_status
));
10237 /* The main driver is (mostly) up and happy. We need to set this state
10238 * before setting up the misc vector or we get a race and the vector
10239 * ends up disabled forever.
10241 clear_bit(__I40E_DOWN
, &pf
->state
);
10243 /* In case of MSIX we are going to setup the misc vector right here
10244 * to handle admin queue events etc. In case of legacy and MSI
10245 * the misc functionality and queue processing is combined in
10246 * the same vector and that gets setup at open.
10248 if (pf
->flags
& I40E_FLAG_MSIX_ENABLED
) {
10249 err
= i40e_setup_misc_vector(pf
);
10251 dev_info(&pdev
->dev
,
10252 "setup of misc vector failed: %d\n", err
);
10257 #ifdef CONFIG_PCI_IOV
10258 /* prep for VF support */
10259 if ((pf
->flags
& I40E_FLAG_SRIOV_ENABLED
) &&
10260 (pf
->flags
& I40E_FLAG_MSIX_ENABLED
) &&
10261 !test_bit(__I40E_BAD_EEPROM
, &pf
->state
)) {
10264 /* disable link interrupts for VFs */
10265 val
= rd32(hw
, I40E_PFGEN_PORTMDIO_NUM
);
10266 val
&= ~I40E_PFGEN_PORTMDIO_NUM_VFLINK_STAT_ENA_MASK
;
10267 wr32(hw
, I40E_PFGEN_PORTMDIO_NUM
, val
);
10270 if (pci_num_vf(pdev
)) {
10271 dev_info(&pdev
->dev
,
10272 "Active VFs found, allocating resources.\n");
10273 err
= i40e_alloc_vfs(pf
, pci_num_vf(pdev
));
10275 dev_info(&pdev
->dev
,
10276 "Error %d allocating resources for existing VFs\n",
10280 #endif /* CONFIG_PCI_IOV */
10284 i40e_dbg_pf_init(pf
);
10286 /* tell the firmware that we're starting */
10287 i40e_send_version(pf
);
10289 /* since everything's happy, start the service_task timer */
10290 mod_timer(&pf
->service_timer
,
10291 round_jiffies(jiffies
+ pf
->service_timer_period
));
10294 /* create FCoE interface */
10295 i40e_fcoe_vsi_setup(pf
);
10298 /* Get the negotiated link width and speed from PCI config space */
10299 pcie_capability_read_word(pf
->pdev
, PCI_EXP_LNKSTA
, &link_status
);
10301 i40e_set_pci_config_data(hw
, link_status
);
10303 dev_info(&pdev
->dev
, "PCI-Express: %s %s\n",
10304 (hw
->bus
.speed
== i40e_bus_speed_8000
? "Speed 8.0GT/s" :
10305 hw
->bus
.speed
== i40e_bus_speed_5000
? "Speed 5.0GT/s" :
10306 hw
->bus
.speed
== i40e_bus_speed_2500
? "Speed 2.5GT/s" :
10308 (hw
->bus
.width
== i40e_bus_width_pcie_x8
? "Width x8" :
10309 hw
->bus
.width
== i40e_bus_width_pcie_x4
? "Width x4" :
10310 hw
->bus
.width
== i40e_bus_width_pcie_x2
? "Width x2" :
10311 hw
->bus
.width
== i40e_bus_width_pcie_x1
? "Width x1" :
10314 if (hw
->bus
.width
< i40e_bus_width_pcie_x8
||
10315 hw
->bus
.speed
< i40e_bus_speed_8000
) {
10316 dev_warn(&pdev
->dev
, "PCI-Express bandwidth available for this device may be insufficient for optimal performance.\n");
10317 dev_warn(&pdev
->dev
, "Please move the device to a different PCI-e link with more lanes and/or higher transfer rate.\n");
10320 /* get the requested speeds from the fw */
10321 err
= i40e_aq_get_phy_capabilities(hw
, false, false, &abilities
, NULL
);
10323 dev_info(&pf
->pdev
->dev
,
10324 "get phy capabilities failed, err %s aq_err %s, advertised speed settings may not be correct\n",
10325 i40e_stat_str(&pf
->hw
, err
),
10326 i40e_aq_str(&pf
->hw
, pf
->hw
.aq
.asq_last_status
));
10327 pf
->hw
.phy
.link_info
.requested_speeds
= abilities
.link_speed
;
10329 /* print a string summarizing features */
10330 i40e_print_features(pf
);
10334 /* Unwind what we've done if something failed in the setup */
10336 set_bit(__I40E_DOWN
, &pf
->state
);
10337 i40e_clear_interrupt_scheme(pf
);
10340 i40e_reset_interrupt_capability(pf
);
10341 del_timer_sync(&pf
->service_timer
);
10343 err_configure_lan_hmc
:
10344 (void)i40e_shutdown_lan_hmc(hw
);
10346 kfree(pf
->qp_pile
);
10349 (void)i40e_shutdown_adminq(hw
);
10351 iounmap(hw
->hw_addr
);
10355 pci_disable_pcie_error_reporting(pdev
);
10356 pci_release_selected_regions(pdev
,
10357 pci_select_bars(pdev
, IORESOURCE_MEM
));
10360 pci_disable_device(pdev
);
10365 * i40e_remove - Device removal routine
10366 * @pdev: PCI device information struct
10368 * i40e_remove is called by the PCI subsystem to alert the driver
10369 * that is should release a PCI device. This could be caused by a
10370 * Hot-Plug event, or because the driver is going to be removed from
10373 static void i40e_remove(struct pci_dev
*pdev
)
10375 struct i40e_pf
*pf
= pci_get_drvdata(pdev
);
10376 i40e_status ret_code
;
10379 i40e_dbg_pf_exit(pf
);
10383 /* no more scheduling of any task */
10384 set_bit(__I40E_DOWN
, &pf
->state
);
10385 del_timer_sync(&pf
->service_timer
);
10386 cancel_work_sync(&pf
->service_task
);
10387 i40e_fdir_teardown(pf
);
10389 if (pf
->flags
& I40E_FLAG_SRIOV_ENABLED
) {
10391 pf
->flags
&= ~I40E_FLAG_SRIOV_ENABLED
;
10394 i40e_fdir_teardown(pf
);
10396 /* If there is a switch structure or any orphans, remove them.
10397 * This will leave only the PF's VSI remaining.
10399 for (i
= 0; i
< I40E_MAX_VEB
; i
++) {
10403 if (pf
->veb
[i
]->uplink_seid
== pf
->mac_seid
||
10404 pf
->veb
[i
]->uplink_seid
== 0)
10405 i40e_switch_branch_release(pf
->veb
[i
]);
10408 /* Now we can shutdown the PF's VSI, just before we kill
10411 if (pf
->vsi
[pf
->lan_vsi
])
10412 i40e_vsi_release(pf
->vsi
[pf
->lan_vsi
]);
10414 /* shutdown and destroy the HMC */
10415 if (pf
->hw
.hmc
.hmc_obj
) {
10416 ret_code
= i40e_shutdown_lan_hmc(&pf
->hw
);
10418 dev_warn(&pdev
->dev
,
10419 "Failed to destroy the HMC resources: %d\n",
10423 /* shutdown the adminq */
10424 ret_code
= i40e_shutdown_adminq(&pf
->hw
);
10426 dev_warn(&pdev
->dev
,
10427 "Failed to destroy the Admin Queue resources: %d\n",
10430 /* Clear all dynamic memory lists of rings, q_vectors, and VSIs */
10431 i40e_clear_interrupt_scheme(pf
);
10432 for (i
= 0; i
< pf
->num_alloc_vsi
; i
++) {
10434 i40e_vsi_clear_rings(pf
->vsi
[i
]);
10435 i40e_vsi_clear(pf
->vsi
[i
]);
10440 for (i
= 0; i
< I40E_MAX_VEB
; i
++) {
10445 kfree(pf
->qp_pile
);
10448 iounmap(pf
->hw
.hw_addr
);
10450 pci_release_selected_regions(pdev
,
10451 pci_select_bars(pdev
, IORESOURCE_MEM
));
10453 pci_disable_pcie_error_reporting(pdev
);
10454 pci_disable_device(pdev
);
10458 * i40e_pci_error_detected - warning that something funky happened in PCI land
10459 * @pdev: PCI device information struct
10461 * Called to warn that something happened and the error handling steps
10462 * are in progress. Allows the driver to quiesce things, be ready for
10465 static pci_ers_result_t
i40e_pci_error_detected(struct pci_dev
*pdev
,
10466 enum pci_channel_state error
)
10468 struct i40e_pf
*pf
= pci_get_drvdata(pdev
);
10470 dev_info(&pdev
->dev
, "%s: error %d\n", __func__
, error
);
10472 /* shutdown all operations */
10473 if (!test_bit(__I40E_SUSPENDED
, &pf
->state
)) {
10475 i40e_prep_for_reset(pf
);
10479 /* Request a slot reset */
10480 return PCI_ERS_RESULT_NEED_RESET
;
10484 * i40e_pci_error_slot_reset - a PCI slot reset just happened
10485 * @pdev: PCI device information struct
10487 * Called to find if the driver can work with the device now that
10488 * the pci slot has been reset. If a basic connection seems good
10489 * (registers are readable and have sane content) then return a
10490 * happy little PCI_ERS_RESULT_xxx.
10492 static pci_ers_result_t
i40e_pci_error_slot_reset(struct pci_dev
*pdev
)
10494 struct i40e_pf
*pf
= pci_get_drvdata(pdev
);
10495 pci_ers_result_t result
;
10499 dev_info(&pdev
->dev
, "%s\n", __func__
);
10500 if (pci_enable_device_mem(pdev
)) {
10501 dev_info(&pdev
->dev
,
10502 "Cannot re-enable PCI device after reset.\n");
10503 result
= PCI_ERS_RESULT_DISCONNECT
;
10505 pci_set_master(pdev
);
10506 pci_restore_state(pdev
);
10507 pci_save_state(pdev
);
10508 pci_wake_from_d3(pdev
, false);
10510 reg
= rd32(&pf
->hw
, I40E_GLGEN_RTRIG
);
10512 result
= PCI_ERS_RESULT_RECOVERED
;
10514 result
= PCI_ERS_RESULT_DISCONNECT
;
10517 err
= pci_cleanup_aer_uncorrect_error_status(pdev
);
10519 dev_info(&pdev
->dev
,
10520 "pci_cleanup_aer_uncorrect_error_status failed 0x%0x\n",
10522 /* non-fatal, continue */
10529 * i40e_pci_error_resume - restart operations after PCI error recovery
10530 * @pdev: PCI device information struct
10532 * Called to allow the driver to bring things back up after PCI error
10533 * and/or reset recovery has finished.
10535 static void i40e_pci_error_resume(struct pci_dev
*pdev
)
10537 struct i40e_pf
*pf
= pci_get_drvdata(pdev
);
10539 dev_info(&pdev
->dev
, "%s\n", __func__
);
10540 if (test_bit(__I40E_SUSPENDED
, &pf
->state
))
10544 i40e_handle_reset_warning(pf
);
10549 * i40e_shutdown - PCI callback for shutting down
10550 * @pdev: PCI device information struct
10552 static void i40e_shutdown(struct pci_dev
*pdev
)
10554 struct i40e_pf
*pf
= pci_get_drvdata(pdev
);
10555 struct i40e_hw
*hw
= &pf
->hw
;
10557 set_bit(__I40E_SUSPENDED
, &pf
->state
);
10558 set_bit(__I40E_DOWN
, &pf
->state
);
10560 i40e_prep_for_reset(pf
);
10563 wr32(hw
, I40E_PFPM_APM
, (pf
->wol_en
? I40E_PFPM_APM_APME_MASK
: 0));
10564 wr32(hw
, I40E_PFPM_WUFC
, (pf
->wol_en
? I40E_PFPM_WUFC_MAG_MASK
: 0));
10566 del_timer_sync(&pf
->service_timer
);
10567 cancel_work_sync(&pf
->service_task
);
10568 i40e_fdir_teardown(pf
);
10571 i40e_prep_for_reset(pf
);
10574 wr32(hw
, I40E_PFPM_APM
,
10575 (pf
->wol_en
? I40E_PFPM_APM_APME_MASK
: 0));
10576 wr32(hw
, I40E_PFPM_WUFC
,
10577 (pf
->wol_en
? I40E_PFPM_WUFC_MAG_MASK
: 0));
10579 i40e_clear_interrupt_scheme(pf
);
10581 if (system_state
== SYSTEM_POWER_OFF
) {
10582 pci_wake_from_d3(pdev
, pf
->wol_en
);
10583 pci_set_power_state(pdev
, PCI_D3hot
);
10589 * i40e_suspend - PCI callback for moving to D3
10590 * @pdev: PCI device information struct
10592 static int i40e_suspend(struct pci_dev
*pdev
, pm_message_t state
)
10594 struct i40e_pf
*pf
= pci_get_drvdata(pdev
);
10595 struct i40e_hw
*hw
= &pf
->hw
;
10597 set_bit(__I40E_SUSPENDED
, &pf
->state
);
10598 set_bit(__I40E_DOWN
, &pf
->state
);
10601 i40e_prep_for_reset(pf
);
10604 wr32(hw
, I40E_PFPM_APM
, (pf
->wol_en
? I40E_PFPM_APM_APME_MASK
: 0));
10605 wr32(hw
, I40E_PFPM_WUFC
, (pf
->wol_en
? I40E_PFPM_WUFC_MAG_MASK
: 0));
10607 pci_wake_from_d3(pdev
, pf
->wol_en
);
10608 pci_set_power_state(pdev
, PCI_D3hot
);
10614 * i40e_resume - PCI callback for waking up from D3
10615 * @pdev: PCI device information struct
10617 static int i40e_resume(struct pci_dev
*pdev
)
10619 struct i40e_pf
*pf
= pci_get_drvdata(pdev
);
10622 pci_set_power_state(pdev
, PCI_D0
);
10623 pci_restore_state(pdev
);
10624 /* pci_restore_state() clears dev->state_saves, so
10625 * call pci_save_state() again to restore it.
10627 pci_save_state(pdev
);
10629 err
= pci_enable_device_mem(pdev
);
10631 dev_err(&pdev
->dev
,
10632 "%s: Cannot enable PCI device from suspend\n",
10636 pci_set_master(pdev
);
10638 /* no wakeup events while running */
10639 pci_wake_from_d3(pdev
, false);
10641 /* handling the reset will rebuild the device state */
10642 if (test_and_clear_bit(__I40E_SUSPENDED
, &pf
->state
)) {
10643 clear_bit(__I40E_DOWN
, &pf
->state
);
10645 i40e_reset_and_rebuild(pf
, false);
10653 static const struct pci_error_handlers i40e_err_handler
= {
10654 .error_detected
= i40e_pci_error_detected
,
10655 .slot_reset
= i40e_pci_error_slot_reset
,
10656 .resume
= i40e_pci_error_resume
,
10659 static struct pci_driver i40e_driver
= {
10660 .name
= i40e_driver_name
,
10661 .id_table
= i40e_pci_tbl
,
10662 .probe
= i40e_probe
,
10663 .remove
= i40e_remove
,
10665 .suspend
= i40e_suspend
,
10666 .resume
= i40e_resume
,
10668 .shutdown
= i40e_shutdown
,
10669 .err_handler
= &i40e_err_handler
,
10670 .sriov_configure
= i40e_pci_sriov_configure
,
10674 * i40e_init_module - Driver registration routine
10676 * i40e_init_module is the first routine called when the driver is
10677 * loaded. All it does is register with the PCI subsystem.
10679 static int __init
i40e_init_module(void)
10681 pr_info("%s: %s - version %s\n", i40e_driver_name
,
10682 i40e_driver_string
, i40e_driver_version_str
);
10683 pr_info("%s: %s\n", i40e_driver_name
, i40e_copyright
);
10686 return pci_register_driver(&i40e_driver
);
10688 module_init(i40e_init_module
);
10691 * i40e_exit_module - Driver exit cleanup routine
10693 * i40e_exit_module is called just before the driver is removed
10696 static void __exit
i40e_exit_module(void)
10698 pci_unregister_driver(&i40e_driver
);
10701 module_exit(i40e_exit_module
);