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 34
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_10G_BASE_T4
), 0},
79 {PCI_VDEVICE(INTEL
, I40E_DEV_ID_20G_KR2
), 0},
80 {PCI_VDEVICE(INTEL
, I40E_DEV_ID_SFP_X722
), 0},
81 {PCI_VDEVICE(INTEL
, I40E_DEV_ID_1G_BASE_T_X722
), 0},
82 {PCI_VDEVICE(INTEL
, I40E_DEV_ID_10G_BASE_T_X722
), 0},
83 {PCI_VDEVICE(INTEL
, I40E_DEV_ID_20G_KR2
), 0},
84 {PCI_VDEVICE(INTEL
, I40E_DEV_ID_20G_KR2_A
), 0},
85 /* required last entry */
88 MODULE_DEVICE_TABLE(pci
, i40e_pci_tbl
);
90 #define I40E_MAX_VF_COUNT 128
91 static int debug
= -1;
92 module_param(debug
, int, 0);
93 MODULE_PARM_DESC(debug
, "Debug level (0=none,...,16=all)");
95 MODULE_AUTHOR("Intel Corporation, <e1000-devel@lists.sourceforge.net>");
96 MODULE_DESCRIPTION("Intel(R) Ethernet Connection XL710 Network Driver");
97 MODULE_LICENSE("GPL");
98 MODULE_VERSION(DRV_VERSION
);
101 * i40e_allocate_dma_mem_d - OS specific memory alloc for shared code
102 * @hw: pointer to the HW structure
103 * @mem: ptr to mem struct to fill out
104 * @size: size of memory requested
105 * @alignment: what to align the allocation to
107 int i40e_allocate_dma_mem_d(struct i40e_hw
*hw
, struct i40e_dma_mem
*mem
,
108 u64 size
, u32 alignment
)
110 struct i40e_pf
*pf
= (struct i40e_pf
*)hw
->back
;
112 mem
->size
= ALIGN(size
, alignment
);
113 mem
->va
= dma_zalloc_coherent(&pf
->pdev
->dev
, mem
->size
,
114 &mem
->pa
, GFP_KERNEL
);
122 * i40e_free_dma_mem_d - OS specific memory free for shared code
123 * @hw: pointer to the HW structure
124 * @mem: ptr to mem struct to free
126 int i40e_free_dma_mem_d(struct i40e_hw
*hw
, struct i40e_dma_mem
*mem
)
128 struct i40e_pf
*pf
= (struct i40e_pf
*)hw
->back
;
130 dma_free_coherent(&pf
->pdev
->dev
, mem
->size
, mem
->va
, mem
->pa
);
139 * i40e_allocate_virt_mem_d - OS specific memory alloc for shared code
140 * @hw: pointer to the HW structure
141 * @mem: ptr to mem struct to fill out
142 * @size: size of memory requested
144 int i40e_allocate_virt_mem_d(struct i40e_hw
*hw
, struct i40e_virt_mem
*mem
,
148 mem
->va
= kzalloc(size
, GFP_KERNEL
);
157 * i40e_free_virt_mem_d - OS specific memory free for shared code
158 * @hw: pointer to the HW structure
159 * @mem: ptr to mem struct to free
161 int i40e_free_virt_mem_d(struct i40e_hw
*hw
, struct i40e_virt_mem
*mem
)
163 /* it's ok to kfree a NULL pointer */
172 * i40e_get_lump - find a lump of free generic resource
173 * @pf: board private structure
174 * @pile: the pile of resource to search
175 * @needed: the number of items needed
176 * @id: an owner id to stick on the items assigned
178 * Returns the base item index of the lump, or negative for error
180 * The search_hint trick and lack of advanced fit-finding only work
181 * because we're highly likely to have all the same size lump requests.
182 * Linear search time and any fragmentation should be minimal.
184 static int i40e_get_lump(struct i40e_pf
*pf
, struct i40e_lump_tracking
*pile
,
190 if (!pile
|| needed
== 0 || id
>= I40E_PILE_VALID_BIT
) {
191 dev_info(&pf
->pdev
->dev
,
192 "param err: pile=%p needed=%d id=0x%04x\n",
197 /* start the linear search with an imperfect hint */
198 i
= pile
->search_hint
;
199 while (i
< pile
->num_entries
) {
200 /* skip already allocated entries */
201 if (pile
->list
[i
] & I40E_PILE_VALID_BIT
) {
206 /* do we have enough in this lump? */
207 for (j
= 0; (j
< needed
) && ((i
+j
) < pile
->num_entries
); j
++) {
208 if (pile
->list
[i
+j
] & I40E_PILE_VALID_BIT
)
213 /* there was enough, so assign it to the requestor */
214 for (j
= 0; j
< needed
; j
++)
215 pile
->list
[i
+j
] = id
| I40E_PILE_VALID_BIT
;
217 pile
->search_hint
= i
+ j
;
221 /* not enough, so skip over it and continue looking */
229 * i40e_put_lump - return a lump of generic resource
230 * @pile: the pile of resource to search
231 * @index: the base item index
232 * @id: the owner id of the items assigned
234 * Returns the count of items in the lump
236 static int i40e_put_lump(struct i40e_lump_tracking
*pile
, u16 index
, u16 id
)
238 int valid_id
= (id
| I40E_PILE_VALID_BIT
);
242 if (!pile
|| index
>= pile
->num_entries
)
246 i
< pile
->num_entries
&& pile
->list
[i
] == valid_id
;
252 if (count
&& index
< pile
->search_hint
)
253 pile
->search_hint
= index
;
259 * i40e_find_vsi_from_id - searches for the vsi with the given id
260 * @pf - the pf structure to search for the vsi
261 * @id - id of the vsi it is searching for
263 struct i40e_vsi
*i40e_find_vsi_from_id(struct i40e_pf
*pf
, u16 id
)
267 for (i
= 0; i
< pf
->num_alloc_vsi
; i
++)
268 if (pf
->vsi
[i
] && (pf
->vsi
[i
]->id
== id
))
275 * i40e_service_event_schedule - Schedule the service task to wake up
276 * @pf: board private structure
278 * If not already scheduled, this puts the task into the work queue
280 static void i40e_service_event_schedule(struct i40e_pf
*pf
)
282 if (!test_bit(__I40E_DOWN
, &pf
->state
) &&
283 !test_bit(__I40E_RESET_RECOVERY_PENDING
, &pf
->state
) &&
284 !test_and_set_bit(__I40E_SERVICE_SCHED
, &pf
->state
))
285 schedule_work(&pf
->service_task
);
289 * i40e_tx_timeout - Respond to a Tx Hang
290 * @netdev: network interface device structure
292 * If any port has noticed a Tx timeout, it is likely that the whole
293 * device is munged, not just the one netdev port, so go for the full
297 void i40e_tx_timeout(struct net_device
*netdev
)
299 static void i40e_tx_timeout(struct net_device
*netdev
)
302 struct i40e_netdev_priv
*np
= netdev_priv(netdev
);
303 struct i40e_vsi
*vsi
= np
->vsi
;
304 struct i40e_pf
*pf
= vsi
->back
;
305 struct i40e_ring
*tx_ring
= NULL
;
306 unsigned int i
, hung_queue
= 0;
309 pf
->tx_timeout_count
++;
311 /* find the stopped queue the same way the stack does */
312 for (i
= 0; i
< netdev
->num_tx_queues
; i
++) {
313 struct netdev_queue
*q
;
314 unsigned long trans_start
;
316 q
= netdev_get_tx_queue(netdev
, i
);
317 trans_start
= q
->trans_start
? : netdev
->trans_start
;
318 if (netif_xmit_stopped(q
) &&
320 (trans_start
+ netdev
->watchdog_timeo
))) {
326 if (i
== netdev
->num_tx_queues
) {
327 netdev_info(netdev
, "tx_timeout: no netdev hung queue found\n");
329 /* now that we have an index, find the tx_ring struct */
330 for (i
= 0; i
< vsi
->num_queue_pairs
; i
++) {
331 if (vsi
->tx_rings
[i
] && vsi
->tx_rings
[i
]->desc
) {
333 vsi
->tx_rings
[i
]->queue_index
) {
334 tx_ring
= vsi
->tx_rings
[i
];
341 if (time_after(jiffies
, (pf
->tx_timeout_last_recovery
+ HZ
*20)))
342 pf
->tx_timeout_recovery_level
= 1; /* reset after some time */
343 else if (time_before(jiffies
,
344 (pf
->tx_timeout_last_recovery
+ netdev
->watchdog_timeo
)))
345 return; /* don't do any new action before the next timeout */
348 head
= i40e_get_head(tx_ring
);
349 /* Read interrupt register */
350 if (pf
->flags
& I40E_FLAG_MSIX_ENABLED
)
352 I40E_PFINT_DYN_CTLN(tx_ring
->q_vector
->v_idx
+
353 tx_ring
->vsi
->base_vector
- 1));
355 val
= rd32(&pf
->hw
, I40E_PFINT_DYN_CTL0
);
357 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",
358 vsi
->seid
, hung_queue
, tx_ring
->next_to_clean
,
359 head
, tx_ring
->next_to_use
,
360 readl(tx_ring
->tail
), val
);
363 pf
->tx_timeout_last_recovery
= jiffies
;
364 netdev_info(netdev
, "tx_timeout recovery level %d, hung_queue %d\n",
365 pf
->tx_timeout_recovery_level
, hung_queue
);
367 switch (pf
->tx_timeout_recovery_level
) {
369 set_bit(__I40E_PF_RESET_REQUESTED
, &pf
->state
);
372 set_bit(__I40E_CORE_RESET_REQUESTED
, &pf
->state
);
375 set_bit(__I40E_GLOBAL_RESET_REQUESTED
, &pf
->state
);
378 netdev_err(netdev
, "tx_timeout recovery unsuccessful\n");
382 i40e_service_event_schedule(pf
);
383 pf
->tx_timeout_recovery_level
++;
387 * i40e_release_rx_desc - Store the new tail and head values
388 * @rx_ring: ring to bump
389 * @val: new head index
391 static inline void i40e_release_rx_desc(struct i40e_ring
*rx_ring
, u32 val
)
393 rx_ring
->next_to_use
= val
;
395 /* Force memory writes to complete before letting h/w
396 * know there are new descriptors to fetch. (Only
397 * applicable for weak-ordered memory model archs,
401 writel(val
, rx_ring
->tail
);
405 * i40e_get_vsi_stats_struct - Get System Network Statistics
406 * @vsi: the VSI we care about
408 * Returns the address of the device statistics structure.
409 * The statistics are actually updated from the service task.
411 struct rtnl_link_stats64
*i40e_get_vsi_stats_struct(struct i40e_vsi
*vsi
)
413 return &vsi
->net_stats
;
417 * i40e_get_netdev_stats_struct - Get statistics for netdev interface
418 * @netdev: network interface device structure
420 * Returns the address of the device statistics structure.
421 * The statistics are actually updated from the service task.
424 struct rtnl_link_stats64
*i40e_get_netdev_stats_struct(
425 struct net_device
*netdev
,
426 struct rtnl_link_stats64
*stats
)
428 static struct rtnl_link_stats64
*i40e_get_netdev_stats_struct(
429 struct net_device
*netdev
,
430 struct rtnl_link_stats64
*stats
)
433 struct i40e_netdev_priv
*np
= netdev_priv(netdev
);
434 struct i40e_ring
*tx_ring
, *rx_ring
;
435 struct i40e_vsi
*vsi
= np
->vsi
;
436 struct rtnl_link_stats64
*vsi_stats
= i40e_get_vsi_stats_struct(vsi
);
439 if (test_bit(__I40E_DOWN
, &vsi
->state
))
446 for (i
= 0; i
< vsi
->num_queue_pairs
; i
++) {
450 tx_ring
= ACCESS_ONCE(vsi
->tx_rings
[i
]);
455 start
= u64_stats_fetch_begin_irq(&tx_ring
->syncp
);
456 packets
= tx_ring
->stats
.packets
;
457 bytes
= tx_ring
->stats
.bytes
;
458 } while (u64_stats_fetch_retry_irq(&tx_ring
->syncp
, start
));
460 stats
->tx_packets
+= packets
;
461 stats
->tx_bytes
+= bytes
;
462 rx_ring
= &tx_ring
[1];
465 start
= u64_stats_fetch_begin_irq(&rx_ring
->syncp
);
466 packets
= rx_ring
->stats
.packets
;
467 bytes
= rx_ring
->stats
.bytes
;
468 } while (u64_stats_fetch_retry_irq(&rx_ring
->syncp
, start
));
470 stats
->rx_packets
+= packets
;
471 stats
->rx_bytes
+= bytes
;
475 /* following stats updated by i40e_watchdog_subtask() */
476 stats
->multicast
= vsi_stats
->multicast
;
477 stats
->tx_errors
= vsi_stats
->tx_errors
;
478 stats
->tx_dropped
= vsi_stats
->tx_dropped
;
479 stats
->rx_errors
= vsi_stats
->rx_errors
;
480 stats
->rx_dropped
= vsi_stats
->rx_dropped
;
481 stats
->rx_crc_errors
= vsi_stats
->rx_crc_errors
;
482 stats
->rx_length_errors
= vsi_stats
->rx_length_errors
;
488 * i40e_vsi_reset_stats - Resets all stats of the given vsi
489 * @vsi: the VSI to have its stats reset
491 void i40e_vsi_reset_stats(struct i40e_vsi
*vsi
)
493 struct rtnl_link_stats64
*ns
;
499 ns
= i40e_get_vsi_stats_struct(vsi
);
500 memset(ns
, 0, sizeof(*ns
));
501 memset(&vsi
->net_stats_offsets
, 0, sizeof(vsi
->net_stats_offsets
));
502 memset(&vsi
->eth_stats
, 0, sizeof(vsi
->eth_stats
));
503 memset(&vsi
->eth_stats_offsets
, 0, sizeof(vsi
->eth_stats_offsets
));
504 if (vsi
->rx_rings
&& vsi
->rx_rings
[0]) {
505 for (i
= 0; i
< vsi
->num_queue_pairs
; i
++) {
506 memset(&vsi
->rx_rings
[i
]->stats
, 0,
507 sizeof(vsi
->rx_rings
[i
]->stats
));
508 memset(&vsi
->rx_rings
[i
]->rx_stats
, 0,
509 sizeof(vsi
->rx_rings
[i
]->rx_stats
));
510 memset(&vsi
->tx_rings
[i
]->stats
, 0,
511 sizeof(vsi
->tx_rings
[i
]->stats
));
512 memset(&vsi
->tx_rings
[i
]->tx_stats
, 0,
513 sizeof(vsi
->tx_rings
[i
]->tx_stats
));
516 vsi
->stat_offsets_loaded
= false;
520 * i40e_pf_reset_stats - Reset all of the stats for the given PF
521 * @pf: the PF to be reset
523 void i40e_pf_reset_stats(struct i40e_pf
*pf
)
527 memset(&pf
->stats
, 0, sizeof(pf
->stats
));
528 memset(&pf
->stats_offsets
, 0, sizeof(pf
->stats_offsets
));
529 pf
->stat_offsets_loaded
= false;
531 for (i
= 0; i
< I40E_MAX_VEB
; i
++) {
533 memset(&pf
->veb
[i
]->stats
, 0,
534 sizeof(pf
->veb
[i
]->stats
));
535 memset(&pf
->veb
[i
]->stats_offsets
, 0,
536 sizeof(pf
->veb
[i
]->stats_offsets
));
537 pf
->veb
[i
]->stat_offsets_loaded
= false;
543 * i40e_stat_update48 - read and update a 48 bit stat from the chip
544 * @hw: ptr to the hardware info
545 * @hireg: the high 32 bit reg to read
546 * @loreg: the low 32 bit reg to read
547 * @offset_loaded: has the initial offset been loaded yet
548 * @offset: ptr to current offset value
549 * @stat: ptr to the stat
551 * Since the device stats are not reset at PFReset, they likely will not
552 * be zeroed when the driver starts. We'll save the first values read
553 * and use them as offsets to be subtracted from the raw values in order
554 * to report stats that count from zero. In the process, we also manage
555 * the potential roll-over.
557 static void i40e_stat_update48(struct i40e_hw
*hw
, u32 hireg
, u32 loreg
,
558 bool offset_loaded
, u64
*offset
, u64
*stat
)
562 if (hw
->device_id
== I40E_DEV_ID_QEMU
) {
563 new_data
= rd32(hw
, loreg
);
564 new_data
|= ((u64
)(rd32(hw
, hireg
) & 0xFFFF)) << 32;
566 new_data
= rd64(hw
, loreg
);
570 if (likely(new_data
>= *offset
))
571 *stat
= new_data
- *offset
;
573 *stat
= (new_data
+ BIT_ULL(48)) - *offset
;
574 *stat
&= 0xFFFFFFFFFFFFULL
;
578 * i40e_stat_update32 - read and update a 32 bit stat from the chip
579 * @hw: ptr to the hardware info
580 * @reg: the hw reg to read
581 * @offset_loaded: has the initial offset been loaded yet
582 * @offset: ptr to current offset value
583 * @stat: ptr to the stat
585 static void i40e_stat_update32(struct i40e_hw
*hw
, u32 reg
,
586 bool offset_loaded
, u64
*offset
, u64
*stat
)
590 new_data
= rd32(hw
, reg
);
593 if (likely(new_data
>= *offset
))
594 *stat
= (u32
)(new_data
- *offset
);
596 *stat
= (u32
)((new_data
+ BIT_ULL(32)) - *offset
);
600 * i40e_update_eth_stats - Update VSI-specific ethernet statistics counters.
601 * @vsi: the VSI to be updated
603 void i40e_update_eth_stats(struct i40e_vsi
*vsi
)
605 int stat_idx
= le16_to_cpu(vsi
->info
.stat_counter_idx
);
606 struct i40e_pf
*pf
= vsi
->back
;
607 struct i40e_hw
*hw
= &pf
->hw
;
608 struct i40e_eth_stats
*oes
;
609 struct i40e_eth_stats
*es
; /* device's eth stats */
611 es
= &vsi
->eth_stats
;
612 oes
= &vsi
->eth_stats_offsets
;
614 /* Gather up the stats that the hw collects */
615 i40e_stat_update32(hw
, I40E_GLV_TEPC(stat_idx
),
616 vsi
->stat_offsets_loaded
,
617 &oes
->tx_errors
, &es
->tx_errors
);
618 i40e_stat_update32(hw
, I40E_GLV_RDPC(stat_idx
),
619 vsi
->stat_offsets_loaded
,
620 &oes
->rx_discards
, &es
->rx_discards
);
621 i40e_stat_update32(hw
, I40E_GLV_RUPP(stat_idx
),
622 vsi
->stat_offsets_loaded
,
623 &oes
->rx_unknown_protocol
, &es
->rx_unknown_protocol
);
624 i40e_stat_update32(hw
, I40E_GLV_TEPC(stat_idx
),
625 vsi
->stat_offsets_loaded
,
626 &oes
->tx_errors
, &es
->tx_errors
);
628 i40e_stat_update48(hw
, I40E_GLV_GORCH(stat_idx
),
629 I40E_GLV_GORCL(stat_idx
),
630 vsi
->stat_offsets_loaded
,
631 &oes
->rx_bytes
, &es
->rx_bytes
);
632 i40e_stat_update48(hw
, I40E_GLV_UPRCH(stat_idx
),
633 I40E_GLV_UPRCL(stat_idx
),
634 vsi
->stat_offsets_loaded
,
635 &oes
->rx_unicast
, &es
->rx_unicast
);
636 i40e_stat_update48(hw
, I40E_GLV_MPRCH(stat_idx
),
637 I40E_GLV_MPRCL(stat_idx
),
638 vsi
->stat_offsets_loaded
,
639 &oes
->rx_multicast
, &es
->rx_multicast
);
640 i40e_stat_update48(hw
, I40E_GLV_BPRCH(stat_idx
),
641 I40E_GLV_BPRCL(stat_idx
),
642 vsi
->stat_offsets_loaded
,
643 &oes
->rx_broadcast
, &es
->rx_broadcast
);
645 i40e_stat_update48(hw
, I40E_GLV_GOTCH(stat_idx
),
646 I40E_GLV_GOTCL(stat_idx
),
647 vsi
->stat_offsets_loaded
,
648 &oes
->tx_bytes
, &es
->tx_bytes
);
649 i40e_stat_update48(hw
, I40E_GLV_UPTCH(stat_idx
),
650 I40E_GLV_UPTCL(stat_idx
),
651 vsi
->stat_offsets_loaded
,
652 &oes
->tx_unicast
, &es
->tx_unicast
);
653 i40e_stat_update48(hw
, I40E_GLV_MPTCH(stat_idx
),
654 I40E_GLV_MPTCL(stat_idx
),
655 vsi
->stat_offsets_loaded
,
656 &oes
->tx_multicast
, &es
->tx_multicast
);
657 i40e_stat_update48(hw
, I40E_GLV_BPTCH(stat_idx
),
658 I40E_GLV_BPTCL(stat_idx
),
659 vsi
->stat_offsets_loaded
,
660 &oes
->tx_broadcast
, &es
->tx_broadcast
);
661 vsi
->stat_offsets_loaded
= true;
665 * i40e_update_veb_stats - Update Switch component statistics
666 * @veb: the VEB being updated
668 static void i40e_update_veb_stats(struct i40e_veb
*veb
)
670 struct i40e_pf
*pf
= veb
->pf
;
671 struct i40e_hw
*hw
= &pf
->hw
;
672 struct i40e_eth_stats
*oes
;
673 struct i40e_eth_stats
*es
; /* device's eth stats */
674 struct i40e_veb_tc_stats
*veb_oes
;
675 struct i40e_veb_tc_stats
*veb_es
;
678 idx
= veb
->stats_idx
;
680 oes
= &veb
->stats_offsets
;
681 veb_es
= &veb
->tc_stats
;
682 veb_oes
= &veb
->tc_stats_offsets
;
684 /* Gather up the stats that the hw collects */
685 i40e_stat_update32(hw
, I40E_GLSW_TDPC(idx
),
686 veb
->stat_offsets_loaded
,
687 &oes
->tx_discards
, &es
->tx_discards
);
688 if (hw
->revision_id
> 0)
689 i40e_stat_update32(hw
, I40E_GLSW_RUPP(idx
),
690 veb
->stat_offsets_loaded
,
691 &oes
->rx_unknown_protocol
,
692 &es
->rx_unknown_protocol
);
693 i40e_stat_update48(hw
, I40E_GLSW_GORCH(idx
), I40E_GLSW_GORCL(idx
),
694 veb
->stat_offsets_loaded
,
695 &oes
->rx_bytes
, &es
->rx_bytes
);
696 i40e_stat_update48(hw
, I40E_GLSW_UPRCH(idx
), I40E_GLSW_UPRCL(idx
),
697 veb
->stat_offsets_loaded
,
698 &oes
->rx_unicast
, &es
->rx_unicast
);
699 i40e_stat_update48(hw
, I40E_GLSW_MPRCH(idx
), I40E_GLSW_MPRCL(idx
),
700 veb
->stat_offsets_loaded
,
701 &oes
->rx_multicast
, &es
->rx_multicast
);
702 i40e_stat_update48(hw
, I40E_GLSW_BPRCH(idx
), I40E_GLSW_BPRCL(idx
),
703 veb
->stat_offsets_loaded
,
704 &oes
->rx_broadcast
, &es
->rx_broadcast
);
706 i40e_stat_update48(hw
, I40E_GLSW_GOTCH(idx
), I40E_GLSW_GOTCL(idx
),
707 veb
->stat_offsets_loaded
,
708 &oes
->tx_bytes
, &es
->tx_bytes
);
709 i40e_stat_update48(hw
, I40E_GLSW_UPTCH(idx
), I40E_GLSW_UPTCL(idx
),
710 veb
->stat_offsets_loaded
,
711 &oes
->tx_unicast
, &es
->tx_unicast
);
712 i40e_stat_update48(hw
, I40E_GLSW_MPTCH(idx
), I40E_GLSW_MPTCL(idx
),
713 veb
->stat_offsets_loaded
,
714 &oes
->tx_multicast
, &es
->tx_multicast
);
715 i40e_stat_update48(hw
, I40E_GLSW_BPTCH(idx
), I40E_GLSW_BPTCL(idx
),
716 veb
->stat_offsets_loaded
,
717 &oes
->tx_broadcast
, &es
->tx_broadcast
);
718 for (i
= 0; i
< I40E_MAX_TRAFFIC_CLASS
; i
++) {
719 i40e_stat_update48(hw
, I40E_GLVEBTC_RPCH(i
, idx
),
720 I40E_GLVEBTC_RPCL(i
, idx
),
721 veb
->stat_offsets_loaded
,
722 &veb_oes
->tc_rx_packets
[i
],
723 &veb_es
->tc_rx_packets
[i
]);
724 i40e_stat_update48(hw
, I40E_GLVEBTC_RBCH(i
, idx
),
725 I40E_GLVEBTC_RBCL(i
, idx
),
726 veb
->stat_offsets_loaded
,
727 &veb_oes
->tc_rx_bytes
[i
],
728 &veb_es
->tc_rx_bytes
[i
]);
729 i40e_stat_update48(hw
, I40E_GLVEBTC_TPCH(i
, idx
),
730 I40E_GLVEBTC_TPCL(i
, idx
),
731 veb
->stat_offsets_loaded
,
732 &veb_oes
->tc_tx_packets
[i
],
733 &veb_es
->tc_tx_packets
[i
]);
734 i40e_stat_update48(hw
, I40E_GLVEBTC_TBCH(i
, idx
),
735 I40E_GLVEBTC_TBCL(i
, idx
),
736 veb
->stat_offsets_loaded
,
737 &veb_oes
->tc_tx_bytes
[i
],
738 &veb_es
->tc_tx_bytes
[i
]);
740 veb
->stat_offsets_loaded
= true;
745 * i40e_update_fcoe_stats - Update FCoE-specific ethernet statistics counters.
746 * @vsi: the VSI that is capable of doing FCoE
748 static void i40e_update_fcoe_stats(struct i40e_vsi
*vsi
)
750 struct i40e_pf
*pf
= vsi
->back
;
751 struct i40e_hw
*hw
= &pf
->hw
;
752 struct i40e_fcoe_stats
*ofs
;
753 struct i40e_fcoe_stats
*fs
; /* device's eth stats */
756 if (vsi
->type
!= I40E_VSI_FCOE
)
759 idx
= (pf
->pf_seid
- I40E_BASE_PF_SEID
) + I40E_FCOE_PF_STAT_OFFSET
;
760 fs
= &vsi
->fcoe_stats
;
761 ofs
= &vsi
->fcoe_stats_offsets
;
763 i40e_stat_update32(hw
, I40E_GL_FCOEPRC(idx
),
764 vsi
->fcoe_stat_offsets_loaded
,
765 &ofs
->rx_fcoe_packets
, &fs
->rx_fcoe_packets
);
766 i40e_stat_update48(hw
, I40E_GL_FCOEDWRCH(idx
), I40E_GL_FCOEDWRCL(idx
),
767 vsi
->fcoe_stat_offsets_loaded
,
768 &ofs
->rx_fcoe_dwords
, &fs
->rx_fcoe_dwords
);
769 i40e_stat_update32(hw
, I40E_GL_FCOERPDC(idx
),
770 vsi
->fcoe_stat_offsets_loaded
,
771 &ofs
->rx_fcoe_dropped
, &fs
->rx_fcoe_dropped
);
772 i40e_stat_update32(hw
, I40E_GL_FCOEPTC(idx
),
773 vsi
->fcoe_stat_offsets_loaded
,
774 &ofs
->tx_fcoe_packets
, &fs
->tx_fcoe_packets
);
775 i40e_stat_update48(hw
, I40E_GL_FCOEDWTCH(idx
), I40E_GL_FCOEDWTCL(idx
),
776 vsi
->fcoe_stat_offsets_loaded
,
777 &ofs
->tx_fcoe_dwords
, &fs
->tx_fcoe_dwords
);
778 i40e_stat_update32(hw
, I40E_GL_FCOECRC(idx
),
779 vsi
->fcoe_stat_offsets_loaded
,
780 &ofs
->fcoe_bad_fccrc
, &fs
->fcoe_bad_fccrc
);
781 i40e_stat_update32(hw
, I40E_GL_FCOELAST(idx
),
782 vsi
->fcoe_stat_offsets_loaded
,
783 &ofs
->fcoe_last_error
, &fs
->fcoe_last_error
);
784 i40e_stat_update32(hw
, I40E_GL_FCOEDDPC(idx
),
785 vsi
->fcoe_stat_offsets_loaded
,
786 &ofs
->fcoe_ddp_count
, &fs
->fcoe_ddp_count
);
788 vsi
->fcoe_stat_offsets_loaded
= true;
793 * i40e_update_link_xoff_rx - Update XOFF received in link flow control mode
794 * @pf: the corresponding PF
796 * Update the Rx XOFF counter (PAUSE frames) in link flow control mode
798 static void i40e_update_link_xoff_rx(struct i40e_pf
*pf
)
800 struct i40e_hw_port_stats
*osd
= &pf
->stats_offsets
;
801 struct i40e_hw_port_stats
*nsd
= &pf
->stats
;
802 struct i40e_hw
*hw
= &pf
->hw
;
805 if ((hw
->fc
.current_mode
!= I40E_FC_FULL
) &&
806 (hw
->fc
.current_mode
!= I40E_FC_RX_PAUSE
))
809 xoff
= nsd
->link_xoff_rx
;
810 i40e_stat_update32(hw
, I40E_GLPRT_LXOFFRXC(hw
->port
),
811 pf
->stat_offsets_loaded
,
812 &osd
->link_xoff_rx
, &nsd
->link_xoff_rx
);
814 /* No new LFC xoff rx */
815 if (!(nsd
->link_xoff_rx
- xoff
))
821 * i40e_update_prio_xoff_rx - Update XOFF received in PFC mode
822 * @pf: the corresponding PF
824 * Update the Rx XOFF counter (PAUSE frames) in PFC mode
826 static void i40e_update_prio_xoff_rx(struct i40e_pf
*pf
)
828 struct i40e_hw_port_stats
*osd
= &pf
->stats_offsets
;
829 struct i40e_hw_port_stats
*nsd
= &pf
->stats
;
830 bool xoff
[I40E_MAX_TRAFFIC_CLASS
] = {false};
831 struct i40e_dcbx_config
*dcb_cfg
;
832 struct i40e_hw
*hw
= &pf
->hw
;
836 dcb_cfg
= &hw
->local_dcbx_config
;
838 /* Collect Link XOFF stats when PFC is disabled */
839 if (!dcb_cfg
->pfc
.pfcenable
) {
840 i40e_update_link_xoff_rx(pf
);
844 for (i
= 0; i
< I40E_MAX_USER_PRIORITY
; i
++) {
845 u64 prio_xoff
= nsd
->priority_xoff_rx
[i
];
847 i40e_stat_update32(hw
, I40E_GLPRT_PXOFFRXC(hw
->port
, i
),
848 pf
->stat_offsets_loaded
,
849 &osd
->priority_xoff_rx
[i
],
850 &nsd
->priority_xoff_rx
[i
]);
852 /* No new PFC xoff rx */
853 if (!(nsd
->priority_xoff_rx
[i
] - prio_xoff
))
855 /* Get the TC for given priority */
856 tc
= dcb_cfg
->etscfg
.prioritytable
[i
];
862 * i40e_update_vsi_stats - Update the vsi statistics counters.
863 * @vsi: the VSI to be updated
865 * There are a few instances where we store the same stat in a
866 * couple of different structs. This is partly because we have
867 * the netdev stats that need to be filled out, which is slightly
868 * different from the "eth_stats" defined by the chip and used in
869 * VF communications. We sort it out here.
871 static void i40e_update_vsi_stats(struct i40e_vsi
*vsi
)
873 struct i40e_pf
*pf
= vsi
->back
;
874 struct rtnl_link_stats64
*ons
;
875 struct rtnl_link_stats64
*ns
; /* netdev stats */
876 struct i40e_eth_stats
*oes
;
877 struct i40e_eth_stats
*es
; /* device's eth stats */
878 u32 tx_restart
, tx_busy
;
888 if (test_bit(__I40E_DOWN
, &vsi
->state
) ||
889 test_bit(__I40E_CONFIG_BUSY
, &pf
->state
))
892 ns
= i40e_get_vsi_stats_struct(vsi
);
893 ons
= &vsi
->net_stats_offsets
;
894 es
= &vsi
->eth_stats
;
895 oes
= &vsi
->eth_stats_offsets
;
897 /* Gather up the netdev and vsi stats that the driver collects
898 * on the fly during packet processing
902 tx_restart
= tx_busy
= tx_linearize
= 0;
906 for (q
= 0; q
< vsi
->num_queue_pairs
; q
++) {
908 p
= ACCESS_ONCE(vsi
->tx_rings
[q
]);
911 start
= u64_stats_fetch_begin_irq(&p
->syncp
);
912 packets
= p
->stats
.packets
;
913 bytes
= p
->stats
.bytes
;
914 } while (u64_stats_fetch_retry_irq(&p
->syncp
, start
));
917 tx_restart
+= p
->tx_stats
.restart_queue
;
918 tx_busy
+= p
->tx_stats
.tx_busy
;
919 tx_linearize
+= p
->tx_stats
.tx_linearize
;
921 /* Rx queue is part of the same block as Tx queue */
924 start
= u64_stats_fetch_begin_irq(&p
->syncp
);
925 packets
= p
->stats
.packets
;
926 bytes
= p
->stats
.bytes
;
927 } while (u64_stats_fetch_retry_irq(&p
->syncp
, start
));
930 rx_buf
+= p
->rx_stats
.alloc_buff_failed
;
931 rx_page
+= p
->rx_stats
.alloc_page_failed
;
934 vsi
->tx_restart
= tx_restart
;
935 vsi
->tx_busy
= tx_busy
;
936 vsi
->tx_linearize
= tx_linearize
;
937 vsi
->rx_page_failed
= rx_page
;
938 vsi
->rx_buf_failed
= rx_buf
;
940 ns
->rx_packets
= rx_p
;
942 ns
->tx_packets
= tx_p
;
945 /* update netdev stats from eth stats */
946 i40e_update_eth_stats(vsi
);
947 ons
->tx_errors
= oes
->tx_errors
;
948 ns
->tx_errors
= es
->tx_errors
;
949 ons
->multicast
= oes
->rx_multicast
;
950 ns
->multicast
= es
->rx_multicast
;
951 ons
->rx_dropped
= oes
->rx_discards
;
952 ns
->rx_dropped
= es
->rx_discards
;
953 ons
->tx_dropped
= oes
->tx_discards
;
954 ns
->tx_dropped
= es
->tx_discards
;
956 /* pull in a couple PF stats if this is the main vsi */
957 if (vsi
== pf
->vsi
[pf
->lan_vsi
]) {
958 ns
->rx_crc_errors
= pf
->stats
.crc_errors
;
959 ns
->rx_errors
= pf
->stats
.crc_errors
+ pf
->stats
.illegal_bytes
;
960 ns
->rx_length_errors
= pf
->stats
.rx_length_errors
;
965 * i40e_update_pf_stats - Update the PF statistics counters.
966 * @pf: the PF to be updated
968 static void i40e_update_pf_stats(struct i40e_pf
*pf
)
970 struct i40e_hw_port_stats
*osd
= &pf
->stats_offsets
;
971 struct i40e_hw_port_stats
*nsd
= &pf
->stats
;
972 struct i40e_hw
*hw
= &pf
->hw
;
976 i40e_stat_update48(hw
, I40E_GLPRT_GORCH(hw
->port
),
977 I40E_GLPRT_GORCL(hw
->port
),
978 pf
->stat_offsets_loaded
,
979 &osd
->eth
.rx_bytes
, &nsd
->eth
.rx_bytes
);
980 i40e_stat_update48(hw
, I40E_GLPRT_GOTCH(hw
->port
),
981 I40E_GLPRT_GOTCL(hw
->port
),
982 pf
->stat_offsets_loaded
,
983 &osd
->eth
.tx_bytes
, &nsd
->eth
.tx_bytes
);
984 i40e_stat_update32(hw
, I40E_GLPRT_RDPC(hw
->port
),
985 pf
->stat_offsets_loaded
,
986 &osd
->eth
.rx_discards
,
987 &nsd
->eth
.rx_discards
);
988 i40e_stat_update48(hw
, I40E_GLPRT_UPRCH(hw
->port
),
989 I40E_GLPRT_UPRCL(hw
->port
),
990 pf
->stat_offsets_loaded
,
991 &osd
->eth
.rx_unicast
,
992 &nsd
->eth
.rx_unicast
);
993 i40e_stat_update48(hw
, I40E_GLPRT_MPRCH(hw
->port
),
994 I40E_GLPRT_MPRCL(hw
->port
),
995 pf
->stat_offsets_loaded
,
996 &osd
->eth
.rx_multicast
,
997 &nsd
->eth
.rx_multicast
);
998 i40e_stat_update48(hw
, I40E_GLPRT_BPRCH(hw
->port
),
999 I40E_GLPRT_BPRCL(hw
->port
),
1000 pf
->stat_offsets_loaded
,
1001 &osd
->eth
.rx_broadcast
,
1002 &nsd
->eth
.rx_broadcast
);
1003 i40e_stat_update48(hw
, I40E_GLPRT_UPTCH(hw
->port
),
1004 I40E_GLPRT_UPTCL(hw
->port
),
1005 pf
->stat_offsets_loaded
,
1006 &osd
->eth
.tx_unicast
,
1007 &nsd
->eth
.tx_unicast
);
1008 i40e_stat_update48(hw
, I40E_GLPRT_MPTCH(hw
->port
),
1009 I40E_GLPRT_MPTCL(hw
->port
),
1010 pf
->stat_offsets_loaded
,
1011 &osd
->eth
.tx_multicast
,
1012 &nsd
->eth
.tx_multicast
);
1013 i40e_stat_update48(hw
, I40E_GLPRT_BPTCH(hw
->port
),
1014 I40E_GLPRT_BPTCL(hw
->port
),
1015 pf
->stat_offsets_loaded
,
1016 &osd
->eth
.tx_broadcast
,
1017 &nsd
->eth
.tx_broadcast
);
1019 i40e_stat_update32(hw
, I40E_GLPRT_TDOLD(hw
->port
),
1020 pf
->stat_offsets_loaded
,
1021 &osd
->tx_dropped_link_down
,
1022 &nsd
->tx_dropped_link_down
);
1024 i40e_stat_update32(hw
, I40E_GLPRT_CRCERRS(hw
->port
),
1025 pf
->stat_offsets_loaded
,
1026 &osd
->crc_errors
, &nsd
->crc_errors
);
1028 i40e_stat_update32(hw
, I40E_GLPRT_ILLERRC(hw
->port
),
1029 pf
->stat_offsets_loaded
,
1030 &osd
->illegal_bytes
, &nsd
->illegal_bytes
);
1032 i40e_stat_update32(hw
, I40E_GLPRT_MLFC(hw
->port
),
1033 pf
->stat_offsets_loaded
,
1034 &osd
->mac_local_faults
,
1035 &nsd
->mac_local_faults
);
1036 i40e_stat_update32(hw
, I40E_GLPRT_MRFC(hw
->port
),
1037 pf
->stat_offsets_loaded
,
1038 &osd
->mac_remote_faults
,
1039 &nsd
->mac_remote_faults
);
1041 i40e_stat_update32(hw
, I40E_GLPRT_RLEC(hw
->port
),
1042 pf
->stat_offsets_loaded
,
1043 &osd
->rx_length_errors
,
1044 &nsd
->rx_length_errors
);
1046 i40e_stat_update32(hw
, I40E_GLPRT_LXONRXC(hw
->port
),
1047 pf
->stat_offsets_loaded
,
1048 &osd
->link_xon_rx
, &nsd
->link_xon_rx
);
1049 i40e_stat_update32(hw
, I40E_GLPRT_LXONTXC(hw
->port
),
1050 pf
->stat_offsets_loaded
,
1051 &osd
->link_xon_tx
, &nsd
->link_xon_tx
);
1052 i40e_update_prio_xoff_rx(pf
); /* handles I40E_GLPRT_LXOFFRXC */
1053 i40e_stat_update32(hw
, I40E_GLPRT_LXOFFTXC(hw
->port
),
1054 pf
->stat_offsets_loaded
,
1055 &osd
->link_xoff_tx
, &nsd
->link_xoff_tx
);
1057 for (i
= 0; i
< 8; i
++) {
1058 i40e_stat_update32(hw
, I40E_GLPRT_PXONRXC(hw
->port
, i
),
1059 pf
->stat_offsets_loaded
,
1060 &osd
->priority_xon_rx
[i
],
1061 &nsd
->priority_xon_rx
[i
]);
1062 i40e_stat_update32(hw
, I40E_GLPRT_PXONTXC(hw
->port
, i
),
1063 pf
->stat_offsets_loaded
,
1064 &osd
->priority_xon_tx
[i
],
1065 &nsd
->priority_xon_tx
[i
]);
1066 i40e_stat_update32(hw
, I40E_GLPRT_PXOFFTXC(hw
->port
, i
),
1067 pf
->stat_offsets_loaded
,
1068 &osd
->priority_xoff_tx
[i
],
1069 &nsd
->priority_xoff_tx
[i
]);
1070 i40e_stat_update32(hw
,
1071 I40E_GLPRT_RXON2OFFCNT(hw
->port
, i
),
1072 pf
->stat_offsets_loaded
,
1073 &osd
->priority_xon_2_xoff
[i
],
1074 &nsd
->priority_xon_2_xoff
[i
]);
1077 i40e_stat_update48(hw
, I40E_GLPRT_PRC64H(hw
->port
),
1078 I40E_GLPRT_PRC64L(hw
->port
),
1079 pf
->stat_offsets_loaded
,
1080 &osd
->rx_size_64
, &nsd
->rx_size_64
);
1081 i40e_stat_update48(hw
, I40E_GLPRT_PRC127H(hw
->port
),
1082 I40E_GLPRT_PRC127L(hw
->port
),
1083 pf
->stat_offsets_loaded
,
1084 &osd
->rx_size_127
, &nsd
->rx_size_127
);
1085 i40e_stat_update48(hw
, I40E_GLPRT_PRC255H(hw
->port
),
1086 I40E_GLPRT_PRC255L(hw
->port
),
1087 pf
->stat_offsets_loaded
,
1088 &osd
->rx_size_255
, &nsd
->rx_size_255
);
1089 i40e_stat_update48(hw
, I40E_GLPRT_PRC511H(hw
->port
),
1090 I40E_GLPRT_PRC511L(hw
->port
),
1091 pf
->stat_offsets_loaded
,
1092 &osd
->rx_size_511
, &nsd
->rx_size_511
);
1093 i40e_stat_update48(hw
, I40E_GLPRT_PRC1023H(hw
->port
),
1094 I40E_GLPRT_PRC1023L(hw
->port
),
1095 pf
->stat_offsets_loaded
,
1096 &osd
->rx_size_1023
, &nsd
->rx_size_1023
);
1097 i40e_stat_update48(hw
, I40E_GLPRT_PRC1522H(hw
->port
),
1098 I40E_GLPRT_PRC1522L(hw
->port
),
1099 pf
->stat_offsets_loaded
,
1100 &osd
->rx_size_1522
, &nsd
->rx_size_1522
);
1101 i40e_stat_update48(hw
, I40E_GLPRT_PRC9522H(hw
->port
),
1102 I40E_GLPRT_PRC9522L(hw
->port
),
1103 pf
->stat_offsets_loaded
,
1104 &osd
->rx_size_big
, &nsd
->rx_size_big
);
1106 i40e_stat_update48(hw
, I40E_GLPRT_PTC64H(hw
->port
),
1107 I40E_GLPRT_PTC64L(hw
->port
),
1108 pf
->stat_offsets_loaded
,
1109 &osd
->tx_size_64
, &nsd
->tx_size_64
);
1110 i40e_stat_update48(hw
, I40E_GLPRT_PTC127H(hw
->port
),
1111 I40E_GLPRT_PTC127L(hw
->port
),
1112 pf
->stat_offsets_loaded
,
1113 &osd
->tx_size_127
, &nsd
->tx_size_127
);
1114 i40e_stat_update48(hw
, I40E_GLPRT_PTC255H(hw
->port
),
1115 I40E_GLPRT_PTC255L(hw
->port
),
1116 pf
->stat_offsets_loaded
,
1117 &osd
->tx_size_255
, &nsd
->tx_size_255
);
1118 i40e_stat_update48(hw
, I40E_GLPRT_PTC511H(hw
->port
),
1119 I40E_GLPRT_PTC511L(hw
->port
),
1120 pf
->stat_offsets_loaded
,
1121 &osd
->tx_size_511
, &nsd
->tx_size_511
);
1122 i40e_stat_update48(hw
, I40E_GLPRT_PTC1023H(hw
->port
),
1123 I40E_GLPRT_PTC1023L(hw
->port
),
1124 pf
->stat_offsets_loaded
,
1125 &osd
->tx_size_1023
, &nsd
->tx_size_1023
);
1126 i40e_stat_update48(hw
, I40E_GLPRT_PTC1522H(hw
->port
),
1127 I40E_GLPRT_PTC1522L(hw
->port
),
1128 pf
->stat_offsets_loaded
,
1129 &osd
->tx_size_1522
, &nsd
->tx_size_1522
);
1130 i40e_stat_update48(hw
, I40E_GLPRT_PTC9522H(hw
->port
),
1131 I40E_GLPRT_PTC9522L(hw
->port
),
1132 pf
->stat_offsets_loaded
,
1133 &osd
->tx_size_big
, &nsd
->tx_size_big
);
1135 i40e_stat_update32(hw
, I40E_GLPRT_RUC(hw
->port
),
1136 pf
->stat_offsets_loaded
,
1137 &osd
->rx_undersize
, &nsd
->rx_undersize
);
1138 i40e_stat_update32(hw
, I40E_GLPRT_RFC(hw
->port
),
1139 pf
->stat_offsets_loaded
,
1140 &osd
->rx_fragments
, &nsd
->rx_fragments
);
1141 i40e_stat_update32(hw
, I40E_GLPRT_ROC(hw
->port
),
1142 pf
->stat_offsets_loaded
,
1143 &osd
->rx_oversize
, &nsd
->rx_oversize
);
1144 i40e_stat_update32(hw
, I40E_GLPRT_RJC(hw
->port
),
1145 pf
->stat_offsets_loaded
,
1146 &osd
->rx_jabber
, &nsd
->rx_jabber
);
1149 i40e_stat_update32(hw
,
1150 I40E_GLQF_PCNT(I40E_FD_ATR_STAT_IDX(pf
->hw
.pf_id
)),
1151 pf
->stat_offsets_loaded
,
1152 &osd
->fd_atr_match
, &nsd
->fd_atr_match
);
1153 i40e_stat_update32(hw
,
1154 I40E_GLQF_PCNT(I40E_FD_SB_STAT_IDX(pf
->hw
.pf_id
)),
1155 pf
->stat_offsets_loaded
,
1156 &osd
->fd_sb_match
, &nsd
->fd_sb_match
);
1157 i40e_stat_update32(hw
,
1158 I40E_GLQF_PCNT(I40E_FD_ATR_TUNNEL_STAT_IDX(pf
->hw
.pf_id
)),
1159 pf
->stat_offsets_loaded
,
1160 &osd
->fd_atr_tunnel_match
, &nsd
->fd_atr_tunnel_match
);
1162 val
= rd32(hw
, I40E_PRTPM_EEE_STAT
);
1163 nsd
->tx_lpi_status
=
1164 (val
& I40E_PRTPM_EEE_STAT_TX_LPI_STATUS_MASK
) >>
1165 I40E_PRTPM_EEE_STAT_TX_LPI_STATUS_SHIFT
;
1166 nsd
->rx_lpi_status
=
1167 (val
& I40E_PRTPM_EEE_STAT_RX_LPI_STATUS_MASK
) >>
1168 I40E_PRTPM_EEE_STAT_RX_LPI_STATUS_SHIFT
;
1169 i40e_stat_update32(hw
, I40E_PRTPM_TLPIC
,
1170 pf
->stat_offsets_loaded
,
1171 &osd
->tx_lpi_count
, &nsd
->tx_lpi_count
);
1172 i40e_stat_update32(hw
, I40E_PRTPM_RLPIC
,
1173 pf
->stat_offsets_loaded
,
1174 &osd
->rx_lpi_count
, &nsd
->rx_lpi_count
);
1176 if (pf
->flags
& I40E_FLAG_FD_SB_ENABLED
&&
1177 !(pf
->auto_disable_flags
& I40E_FLAG_FD_SB_ENABLED
))
1178 nsd
->fd_sb_status
= true;
1180 nsd
->fd_sb_status
= false;
1182 if (pf
->flags
& I40E_FLAG_FD_ATR_ENABLED
&&
1183 !(pf
->auto_disable_flags
& I40E_FLAG_FD_ATR_ENABLED
))
1184 nsd
->fd_atr_status
= true;
1186 nsd
->fd_atr_status
= false;
1188 pf
->stat_offsets_loaded
= true;
1192 * i40e_update_stats - Update the various statistics counters.
1193 * @vsi: the VSI to be updated
1195 * Update the various stats for this VSI and its related entities.
1197 void i40e_update_stats(struct i40e_vsi
*vsi
)
1199 struct i40e_pf
*pf
= vsi
->back
;
1201 if (vsi
== pf
->vsi
[pf
->lan_vsi
])
1202 i40e_update_pf_stats(pf
);
1204 i40e_update_vsi_stats(vsi
);
1206 i40e_update_fcoe_stats(vsi
);
1211 * i40e_find_filter - Search VSI filter list for specific mac/vlan filter
1212 * @vsi: the VSI to be searched
1213 * @macaddr: the MAC address
1215 * @is_vf: make sure its a VF filter, else doesn't matter
1216 * @is_netdev: make sure its a netdev filter, else doesn't matter
1218 * Returns ptr to the filter object or NULL
1220 static struct i40e_mac_filter
*i40e_find_filter(struct i40e_vsi
*vsi
,
1221 u8
*macaddr
, s16 vlan
,
1222 bool is_vf
, bool is_netdev
)
1224 struct i40e_mac_filter
*f
;
1226 if (!vsi
|| !macaddr
)
1229 list_for_each_entry(f
, &vsi
->mac_filter_list
, list
) {
1230 if ((ether_addr_equal(macaddr
, f
->macaddr
)) &&
1231 (vlan
== f
->vlan
) &&
1232 (!is_vf
|| f
->is_vf
) &&
1233 (!is_netdev
|| f
->is_netdev
))
1240 * i40e_find_mac - Find a mac addr in the macvlan filters list
1241 * @vsi: the VSI to be searched
1242 * @macaddr: the MAC address we are searching for
1243 * @is_vf: make sure its a VF filter, else doesn't matter
1244 * @is_netdev: make sure its a netdev filter, else doesn't matter
1246 * Returns the first filter with the provided MAC address or NULL if
1247 * MAC address was not found
1249 struct i40e_mac_filter
*i40e_find_mac(struct i40e_vsi
*vsi
, u8
*macaddr
,
1250 bool is_vf
, bool is_netdev
)
1252 struct i40e_mac_filter
*f
;
1254 if (!vsi
|| !macaddr
)
1257 list_for_each_entry(f
, &vsi
->mac_filter_list
, list
) {
1258 if ((ether_addr_equal(macaddr
, f
->macaddr
)) &&
1259 (!is_vf
|| f
->is_vf
) &&
1260 (!is_netdev
|| f
->is_netdev
))
1267 * i40e_is_vsi_in_vlan - Check if VSI is in vlan mode
1268 * @vsi: the VSI to be searched
1270 * Returns true if VSI is in vlan mode or false otherwise
1272 bool i40e_is_vsi_in_vlan(struct i40e_vsi
*vsi
)
1274 struct i40e_mac_filter
*f
;
1276 /* Only -1 for all the filters denotes not in vlan mode
1277 * so we have to go through all the list in order to make sure
1279 list_for_each_entry(f
, &vsi
->mac_filter_list
, list
) {
1280 if (f
->vlan
>= 0 || vsi
->info
.pvid
)
1288 * i40e_put_mac_in_vlan - Make macvlan filters from macaddrs and vlans
1289 * @vsi: the VSI to be searched
1290 * @macaddr: the mac address to be filtered
1291 * @is_vf: true if it is a VF
1292 * @is_netdev: true if it is a netdev
1294 * Goes through all the macvlan filters and adds a
1295 * macvlan filter for each unique vlan that already exists
1297 * Returns first filter found on success, else NULL
1299 struct i40e_mac_filter
*i40e_put_mac_in_vlan(struct i40e_vsi
*vsi
, u8
*macaddr
,
1300 bool is_vf
, bool is_netdev
)
1302 struct i40e_mac_filter
*f
;
1304 list_for_each_entry(f
, &vsi
->mac_filter_list
, list
) {
1306 f
->vlan
= le16_to_cpu(vsi
->info
.pvid
);
1307 if (!i40e_find_filter(vsi
, macaddr
, f
->vlan
,
1308 is_vf
, is_netdev
)) {
1309 if (!i40e_add_filter(vsi
, macaddr
, f
->vlan
,
1315 return list_first_entry_or_null(&vsi
->mac_filter_list
,
1316 struct i40e_mac_filter
, list
);
1320 * i40e_rm_default_mac_filter - Remove the default MAC filter set by NVM
1321 * @vsi: the PF Main VSI - inappropriate for any other VSI
1322 * @macaddr: the MAC address
1324 * Some older firmware configurations set up a default promiscuous VLAN
1325 * filter that needs to be removed.
1327 static int i40e_rm_default_mac_filter(struct i40e_vsi
*vsi
, u8
*macaddr
)
1329 struct i40e_aqc_remove_macvlan_element_data element
;
1330 struct i40e_pf
*pf
= vsi
->back
;
1333 /* Only appropriate for the PF main VSI */
1334 if (vsi
->type
!= I40E_VSI_MAIN
)
1337 memset(&element
, 0, sizeof(element
));
1338 ether_addr_copy(element
.mac_addr
, macaddr
);
1339 element
.vlan_tag
= 0;
1340 element
.flags
= I40E_AQC_MACVLAN_DEL_PERFECT_MATCH
|
1341 I40E_AQC_MACVLAN_DEL_IGNORE_VLAN
;
1342 ret
= i40e_aq_remove_macvlan(&pf
->hw
, vsi
->seid
, &element
, 1, NULL
);
1350 * i40e_add_filter - Add a mac/vlan filter to the VSI
1351 * @vsi: the VSI to be searched
1352 * @macaddr: the MAC address
1354 * @is_vf: make sure its a VF filter, else doesn't matter
1355 * @is_netdev: make sure its a netdev filter, else doesn't matter
1357 * Returns ptr to the filter object or NULL when no memory available.
1359 struct i40e_mac_filter
*i40e_add_filter(struct i40e_vsi
*vsi
,
1360 u8
*macaddr
, s16 vlan
,
1361 bool is_vf
, bool is_netdev
)
1363 struct i40e_mac_filter
*f
;
1365 if (!vsi
|| !macaddr
)
1368 f
= i40e_find_filter(vsi
, macaddr
, vlan
, is_vf
, is_netdev
);
1370 f
= kzalloc(sizeof(*f
), GFP_ATOMIC
);
1372 goto add_filter_out
;
1374 ether_addr_copy(f
->macaddr
, macaddr
);
1378 INIT_LIST_HEAD(&f
->list
);
1379 list_add(&f
->list
, &vsi
->mac_filter_list
);
1382 /* increment counter and add a new flag if needed */
1388 } else if (is_netdev
) {
1389 if (!f
->is_netdev
) {
1390 f
->is_netdev
= true;
1397 /* changed tells sync_filters_subtask to
1398 * push the filter down to the firmware
1401 vsi
->flags
|= I40E_VSI_FLAG_FILTER_CHANGED
;
1402 vsi
->back
->flags
|= I40E_FLAG_FILTER_SYNC
;
1410 * i40e_del_filter - Remove a mac/vlan filter from the VSI
1411 * @vsi: the VSI to be searched
1412 * @macaddr: the MAC address
1414 * @is_vf: make sure it's a VF filter, else doesn't matter
1415 * @is_netdev: make sure it's a netdev filter, else doesn't matter
1417 void i40e_del_filter(struct i40e_vsi
*vsi
,
1418 u8
*macaddr
, s16 vlan
,
1419 bool is_vf
, bool is_netdev
)
1421 struct i40e_mac_filter
*f
;
1423 if (!vsi
|| !macaddr
)
1426 f
= i40e_find_filter(vsi
, macaddr
, vlan
, is_vf
, is_netdev
);
1427 if (!f
|| f
->counter
== 0)
1435 } else if (is_netdev
) {
1437 f
->is_netdev
= false;
1441 /* make sure we don't remove a filter in use by VF or netdev */
1444 min_f
+= (f
->is_vf
? 1 : 0);
1445 min_f
+= (f
->is_netdev
? 1 : 0);
1447 if (f
->counter
> min_f
)
1451 /* counter == 0 tells sync_filters_subtask to
1452 * remove the filter from the firmware's list
1454 if (f
->counter
== 0) {
1456 vsi
->flags
|= I40E_VSI_FLAG_FILTER_CHANGED
;
1457 vsi
->back
->flags
|= I40E_FLAG_FILTER_SYNC
;
1462 * i40e_set_mac - NDO callback to set mac address
1463 * @netdev: network interface device structure
1464 * @p: pointer to an address structure
1466 * Returns 0 on success, negative on failure
1469 int i40e_set_mac(struct net_device
*netdev
, void *p
)
1471 static int i40e_set_mac(struct net_device
*netdev
, void *p
)
1474 struct i40e_netdev_priv
*np
= netdev_priv(netdev
);
1475 struct i40e_vsi
*vsi
= np
->vsi
;
1476 struct i40e_pf
*pf
= vsi
->back
;
1477 struct i40e_hw
*hw
= &pf
->hw
;
1478 struct sockaddr
*addr
= p
;
1479 struct i40e_mac_filter
*f
;
1481 if (!is_valid_ether_addr(addr
->sa_data
))
1482 return -EADDRNOTAVAIL
;
1484 if (ether_addr_equal(netdev
->dev_addr
, addr
->sa_data
)) {
1485 netdev_info(netdev
, "already using mac address %pM\n",
1490 if (test_bit(__I40E_DOWN
, &vsi
->back
->state
) ||
1491 test_bit(__I40E_RESET_RECOVERY_PENDING
, &vsi
->back
->state
))
1492 return -EADDRNOTAVAIL
;
1494 if (ether_addr_equal(hw
->mac
.addr
, addr
->sa_data
))
1495 netdev_info(netdev
, "returning to hw mac address %pM\n",
1498 netdev_info(netdev
, "set new mac address %pM\n", addr
->sa_data
);
1500 if (vsi
->type
== I40E_VSI_MAIN
) {
1503 ret
= i40e_aq_mac_address_write(&vsi
->back
->hw
,
1504 I40E_AQC_WRITE_TYPE_LAA_WOL
,
1505 addr
->sa_data
, NULL
);
1508 "Addr change for Main VSI failed: %d\n",
1510 return -EADDRNOTAVAIL
;
1514 if (ether_addr_equal(netdev
->dev_addr
, hw
->mac
.addr
)) {
1515 struct i40e_aqc_remove_macvlan_element_data element
;
1517 memset(&element
, 0, sizeof(element
));
1518 ether_addr_copy(element
.mac_addr
, netdev
->dev_addr
);
1519 element
.flags
= I40E_AQC_MACVLAN_DEL_PERFECT_MATCH
;
1520 i40e_aq_remove_macvlan(&pf
->hw
, vsi
->seid
, &element
, 1, NULL
);
1522 i40e_del_filter(vsi
, netdev
->dev_addr
, I40E_VLAN_ANY
,
1526 if (ether_addr_equal(addr
->sa_data
, hw
->mac
.addr
)) {
1527 struct i40e_aqc_add_macvlan_element_data element
;
1529 memset(&element
, 0, sizeof(element
));
1530 ether_addr_copy(element
.mac_addr
, hw
->mac
.addr
);
1531 element
.flags
= cpu_to_le16(I40E_AQC_MACVLAN_ADD_PERFECT_MATCH
);
1532 i40e_aq_add_macvlan(&pf
->hw
, vsi
->seid
, &element
, 1, NULL
);
1534 f
= i40e_add_filter(vsi
, addr
->sa_data
, I40E_VLAN_ANY
,
1540 i40e_sync_vsi_filters(vsi
, false);
1541 ether_addr_copy(netdev
->dev_addr
, addr
->sa_data
);
1547 * i40e_vsi_setup_queue_map - Setup a VSI queue map based on enabled_tc
1548 * @vsi: the VSI being setup
1549 * @ctxt: VSI context structure
1550 * @enabled_tc: Enabled TCs bitmap
1551 * @is_add: True if called before Add VSI
1553 * Setup VSI queue mapping for enabled traffic classes.
1556 void i40e_vsi_setup_queue_map(struct i40e_vsi
*vsi
,
1557 struct i40e_vsi_context
*ctxt
,
1561 static void i40e_vsi_setup_queue_map(struct i40e_vsi
*vsi
,
1562 struct i40e_vsi_context
*ctxt
,
1567 struct i40e_pf
*pf
= vsi
->back
;
1577 sections
= I40E_AQ_VSI_PROP_QUEUE_MAP_VALID
;
1580 if (enabled_tc
&& (vsi
->back
->flags
& I40E_FLAG_DCB_ENABLED
)) {
1581 /* Find numtc from enabled TC bitmap */
1582 for (i
= 0; i
< I40E_MAX_TRAFFIC_CLASS
; i
++) {
1583 if (enabled_tc
& BIT_ULL(i
)) /* TC is enabled */
1587 dev_warn(&pf
->pdev
->dev
, "DCB is enabled but no TC enabled, forcing TC0\n");
1591 /* At least TC0 is enabled in case of non-DCB case */
1595 vsi
->tc_config
.numtc
= numtc
;
1596 vsi
->tc_config
.enabled_tc
= enabled_tc
? enabled_tc
: 1;
1597 /* Number of queues per enabled TC */
1598 /* In MFP case we can have a much lower count of MSIx
1599 * vectors available and so we need to lower the used
1602 if (pf
->flags
& I40E_FLAG_MSIX_ENABLED
)
1603 qcount
= min_t(int, vsi
->alloc_queue_pairs
, pf
->num_lan_msix
);
1605 qcount
= vsi
->alloc_queue_pairs
;
1606 num_tc_qps
= qcount
/ numtc
;
1607 num_tc_qps
= min_t(int, num_tc_qps
, i40e_pf_get_max_q_per_tc(pf
));
1609 /* Setup queue offset/count for all TCs for given VSI */
1610 for (i
= 0; i
< I40E_MAX_TRAFFIC_CLASS
; i
++) {
1611 /* See if the given TC is enabled for the given VSI */
1612 if (vsi
->tc_config
.enabled_tc
& BIT_ULL(i
)) {
1616 switch (vsi
->type
) {
1618 qcount
= min_t(int, pf
->rss_size
, num_tc_qps
);
1622 qcount
= num_tc_qps
;
1626 case I40E_VSI_SRIOV
:
1627 case I40E_VSI_VMDQ2
:
1629 qcount
= num_tc_qps
;
1633 vsi
->tc_config
.tc_info
[i
].qoffset
= offset
;
1634 vsi
->tc_config
.tc_info
[i
].qcount
= qcount
;
1636 /* find the next higher power-of-2 of num queue pairs */
1639 while (num_qps
&& (BIT_ULL(pow
) < qcount
)) {
1644 vsi
->tc_config
.tc_info
[i
].netdev_tc
= netdev_tc
++;
1646 (offset
<< I40E_AQ_VSI_TC_QUE_OFFSET_SHIFT
) |
1647 (pow
<< I40E_AQ_VSI_TC_QUE_NUMBER_SHIFT
);
1651 /* TC is not enabled so set the offset to
1652 * default queue and allocate one queue
1655 vsi
->tc_config
.tc_info
[i
].qoffset
= 0;
1656 vsi
->tc_config
.tc_info
[i
].qcount
= 1;
1657 vsi
->tc_config
.tc_info
[i
].netdev_tc
= 0;
1661 ctxt
->info
.tc_mapping
[i
] = cpu_to_le16(qmap
);
1664 /* Set actual Tx/Rx queue pairs */
1665 vsi
->num_queue_pairs
= offset
;
1666 if ((vsi
->type
== I40E_VSI_MAIN
) && (numtc
== 1)) {
1667 if (vsi
->req_queue_pairs
> 0)
1668 vsi
->num_queue_pairs
= vsi
->req_queue_pairs
;
1669 else if (pf
->flags
& I40E_FLAG_MSIX_ENABLED
)
1670 vsi
->num_queue_pairs
= pf
->num_lan_msix
;
1673 /* Scheduler section valid can only be set for ADD VSI */
1675 sections
|= I40E_AQ_VSI_PROP_SCHED_VALID
;
1677 ctxt
->info
.up_enable_bits
= enabled_tc
;
1679 if (vsi
->type
== I40E_VSI_SRIOV
) {
1680 ctxt
->info
.mapping_flags
|=
1681 cpu_to_le16(I40E_AQ_VSI_QUE_MAP_NONCONTIG
);
1682 for (i
= 0; i
< vsi
->num_queue_pairs
; i
++)
1683 ctxt
->info
.queue_mapping
[i
] =
1684 cpu_to_le16(vsi
->base_queue
+ i
);
1686 ctxt
->info
.mapping_flags
|=
1687 cpu_to_le16(I40E_AQ_VSI_QUE_MAP_CONTIG
);
1688 ctxt
->info
.queue_mapping
[0] = cpu_to_le16(vsi
->base_queue
);
1690 ctxt
->info
.valid_sections
|= cpu_to_le16(sections
);
1694 * i40e_set_rx_mode - NDO callback to set the netdev filters
1695 * @netdev: network interface device structure
1698 void i40e_set_rx_mode(struct net_device
*netdev
)
1700 static void i40e_set_rx_mode(struct net_device
*netdev
)
1703 struct i40e_netdev_priv
*np
= netdev_priv(netdev
);
1704 struct i40e_mac_filter
*f
, *ftmp
;
1705 struct i40e_vsi
*vsi
= np
->vsi
;
1706 struct netdev_hw_addr
*uca
;
1707 struct netdev_hw_addr
*mca
;
1708 struct netdev_hw_addr
*ha
;
1710 /* add addr if not already in the filter list */
1711 netdev_for_each_uc_addr(uca
, netdev
) {
1712 if (!i40e_find_mac(vsi
, uca
->addr
, false, true)) {
1713 if (i40e_is_vsi_in_vlan(vsi
))
1714 i40e_put_mac_in_vlan(vsi
, uca
->addr
,
1717 i40e_add_filter(vsi
, uca
->addr
, I40E_VLAN_ANY
,
1722 netdev_for_each_mc_addr(mca
, netdev
) {
1723 if (!i40e_find_mac(vsi
, mca
->addr
, false, true)) {
1724 if (i40e_is_vsi_in_vlan(vsi
))
1725 i40e_put_mac_in_vlan(vsi
, mca
->addr
,
1728 i40e_add_filter(vsi
, mca
->addr
, I40E_VLAN_ANY
,
1733 /* remove filter if not in netdev list */
1734 list_for_each_entry_safe(f
, ftmp
, &vsi
->mac_filter_list
, list
) {
1739 netdev_for_each_mc_addr(mca
, netdev
)
1740 if (ether_addr_equal(mca
->addr
, f
->macaddr
))
1741 goto bottom_of_search_loop
;
1743 netdev_for_each_uc_addr(uca
, netdev
)
1744 if (ether_addr_equal(uca
->addr
, f
->macaddr
))
1745 goto bottom_of_search_loop
;
1747 for_each_dev_addr(netdev
, ha
)
1748 if (ether_addr_equal(ha
->addr
, f
->macaddr
))
1749 goto bottom_of_search_loop
;
1751 /* f->macaddr wasn't found in uc, mc, or ha list so delete it */
1752 i40e_del_filter(vsi
, f
->macaddr
, I40E_VLAN_ANY
, false, true);
1754 bottom_of_search_loop
:
1758 /* check for other flag changes */
1759 if (vsi
->current_netdev_flags
!= vsi
->netdev
->flags
) {
1760 vsi
->flags
|= I40E_VSI_FLAG_FILTER_CHANGED
;
1761 vsi
->back
->flags
|= I40E_FLAG_FILTER_SYNC
;
1766 * i40e_sync_vsi_filters - Update the VSI filter list to the HW
1767 * @vsi: ptr to the VSI
1768 * @grab_rtnl: whether RTNL needs to be grabbed
1770 * Push any outstanding VSI filter changes through the AdminQ.
1772 * Returns 0 or error value
1774 int i40e_sync_vsi_filters(struct i40e_vsi
*vsi
, bool grab_rtnl
)
1776 struct i40e_mac_filter
*f
, *ftmp
;
1777 bool promisc_forced_on
= false;
1778 bool add_happened
= false;
1779 int filter_list_len
= 0;
1780 u32 changed_flags
= 0;
1781 i40e_status ret
= 0;
1788 /* empty array typed pointers, kcalloc later */
1789 struct i40e_aqc_add_macvlan_element_data
*add_list
;
1790 struct i40e_aqc_remove_macvlan_element_data
*del_list
;
1792 while (test_and_set_bit(__I40E_CONFIG_BUSY
, &vsi
->state
))
1793 usleep_range(1000, 2000);
1797 changed_flags
= vsi
->current_netdev_flags
^ vsi
->netdev
->flags
;
1798 vsi
->current_netdev_flags
= vsi
->netdev
->flags
;
1801 if (vsi
->flags
& I40E_VSI_FLAG_FILTER_CHANGED
) {
1802 vsi
->flags
&= ~I40E_VSI_FLAG_FILTER_CHANGED
;
1804 filter_list_len
= pf
->hw
.aq
.asq_buf_size
/
1805 sizeof(struct i40e_aqc_remove_macvlan_element_data
);
1806 del_list
= kcalloc(filter_list_len
,
1807 sizeof(struct i40e_aqc_remove_macvlan_element_data
),
1812 list_for_each_entry_safe(f
, ftmp
, &vsi
->mac_filter_list
, list
) {
1816 if (f
->counter
!= 0)
1821 /* add to delete list */
1822 ether_addr_copy(del_list
[num_del
].mac_addr
, f
->macaddr
);
1823 del_list
[num_del
].vlan_tag
=
1824 cpu_to_le16((u16
)(f
->vlan
==
1825 I40E_VLAN_ANY
? 0 : f
->vlan
));
1827 cmd_flags
|= I40E_AQC_MACVLAN_DEL_PERFECT_MATCH
;
1828 del_list
[num_del
].flags
= cmd_flags
;
1831 /* unlink from filter list */
1835 /* flush a full buffer */
1836 if (num_del
== filter_list_len
) {
1837 ret
= i40e_aq_remove_macvlan(&pf
->hw
,
1838 vsi
->seid
, del_list
, num_del
,
1840 aq_err
= pf
->hw
.aq
.asq_last_status
;
1842 memset(del_list
, 0, sizeof(*del_list
));
1844 if (ret
&& aq_err
!= I40E_AQ_RC_ENOENT
)
1845 dev_info(&pf
->pdev
->dev
,
1846 "ignoring delete macvlan error, err %s, aq_err %s while flushing a full buffer\n",
1847 i40e_stat_str(&pf
->hw
, ret
),
1848 i40e_aq_str(&pf
->hw
, aq_err
));
1852 ret
= i40e_aq_remove_macvlan(&pf
->hw
, vsi
->seid
,
1853 del_list
, num_del
, NULL
);
1854 aq_err
= pf
->hw
.aq
.asq_last_status
;
1857 if (ret
&& aq_err
!= I40E_AQ_RC_ENOENT
)
1858 dev_info(&pf
->pdev
->dev
,
1859 "ignoring delete macvlan error, err %s aq_err %s\n",
1860 i40e_stat_str(&pf
->hw
, ret
),
1861 i40e_aq_str(&pf
->hw
, aq_err
));
1867 /* do all the adds now */
1868 filter_list_len
= pf
->hw
.aq
.asq_buf_size
/
1869 sizeof(struct i40e_aqc_add_macvlan_element_data
),
1870 add_list
= kcalloc(filter_list_len
,
1871 sizeof(struct i40e_aqc_add_macvlan_element_data
),
1876 list_for_each_entry_safe(f
, ftmp
, &vsi
->mac_filter_list
, list
) {
1880 if (f
->counter
== 0)
1883 add_happened
= true;
1886 /* add to add array */
1887 ether_addr_copy(add_list
[num_add
].mac_addr
, f
->macaddr
);
1888 add_list
[num_add
].vlan_tag
=
1890 (u16
)(f
->vlan
== I40E_VLAN_ANY
? 0 : f
->vlan
));
1891 add_list
[num_add
].queue_number
= 0;
1893 cmd_flags
|= I40E_AQC_MACVLAN_ADD_PERFECT_MATCH
;
1894 add_list
[num_add
].flags
= cpu_to_le16(cmd_flags
);
1897 /* flush a full buffer */
1898 if (num_add
== filter_list_len
) {
1899 ret
= i40e_aq_add_macvlan(&pf
->hw
, vsi
->seid
,
1902 aq_err
= pf
->hw
.aq
.asq_last_status
;
1907 memset(add_list
, 0, sizeof(*add_list
));
1911 ret
= i40e_aq_add_macvlan(&pf
->hw
, vsi
->seid
,
1912 add_list
, num_add
, NULL
);
1913 aq_err
= pf
->hw
.aq
.asq_last_status
;
1919 if (add_happened
&& ret
&& aq_err
!= I40E_AQ_RC_EINVAL
) {
1920 dev_info(&pf
->pdev
->dev
,
1921 "add filter failed, err %s aq_err %s\n",
1922 i40e_stat_str(&pf
->hw
, ret
),
1923 i40e_aq_str(&pf
->hw
, aq_err
));
1924 if ((pf
->hw
.aq
.asq_last_status
== I40E_AQ_RC_ENOSPC
) &&
1925 !test_bit(__I40E_FILTER_OVERFLOW_PROMISC
,
1927 promisc_forced_on
= true;
1928 set_bit(__I40E_FILTER_OVERFLOW_PROMISC
,
1930 dev_info(&pf
->pdev
->dev
, "promiscuous mode forced on\n");
1935 /* check for changes in promiscuous modes */
1936 if (changed_flags
& IFF_ALLMULTI
) {
1937 bool cur_multipromisc
;
1939 cur_multipromisc
= !!(vsi
->current_netdev_flags
& IFF_ALLMULTI
);
1940 ret
= i40e_aq_set_vsi_multicast_promiscuous(&vsi
->back
->hw
,
1945 dev_info(&pf
->pdev
->dev
,
1946 "set multi promisc failed, err %s aq_err %s\n",
1947 i40e_stat_str(&pf
->hw
, ret
),
1948 i40e_aq_str(&pf
->hw
,
1949 pf
->hw
.aq
.asq_last_status
));
1951 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_hw
*hw
= &pf
->hw
;
2909 /* The interrupt indexing is offset by 1 in the PFINT_ITRn
2910 * and PFINT_LNKLSTn registers, e.g.:
2911 * PFINT_ITRn[0..n-1] gets msix-1..msix-n (qpair interrupts)
2913 qp
= vsi
->base_queue
;
2914 vector
= vsi
->base_vector
;
2915 for (i
= 0; i
< vsi
->num_q_vectors
; i
++, vector
++) {
2916 struct i40e_q_vector
*q_vector
= vsi
->q_vectors
[i
];
2918 q_vector
->rx
.itr
= ITR_TO_REG(vsi
->rx_itr_setting
);
2919 q_vector
->rx
.latency_range
= I40E_LOW_LATENCY
;
2920 wr32(hw
, I40E_PFINT_ITRN(I40E_RX_ITR
, vector
- 1),
2922 q_vector
->tx
.itr
= ITR_TO_REG(vsi
->tx_itr_setting
);
2923 q_vector
->tx
.latency_range
= I40E_LOW_LATENCY
;
2924 wr32(hw
, I40E_PFINT_ITRN(I40E_TX_ITR
, vector
- 1),
2926 wr32(hw
, I40E_PFINT_RATEN(vector
- 1),
2927 INTRL_USEC_TO_REG(vsi
->int_rate_limit
));
2929 /* Linked list for the queuepairs assigned to this vector */
2930 wr32(hw
, I40E_PFINT_LNKLSTN(vector
- 1), qp
);
2931 for (q
= 0; q
< q_vector
->num_ringpairs
; q
++) {
2934 val
= I40E_QINT_RQCTL_CAUSE_ENA_MASK
|
2935 (I40E_RX_ITR
<< I40E_QINT_RQCTL_ITR_INDX_SHIFT
) |
2936 (vector
<< I40E_QINT_RQCTL_MSIX_INDX_SHIFT
) |
2937 (qp
<< I40E_QINT_RQCTL_NEXTQ_INDX_SHIFT
)|
2939 << I40E_QINT_RQCTL_NEXTQ_TYPE_SHIFT
);
2941 wr32(hw
, I40E_QINT_RQCTL(qp
), val
);
2943 val
= I40E_QINT_TQCTL_CAUSE_ENA_MASK
|
2944 (I40E_TX_ITR
<< I40E_QINT_TQCTL_ITR_INDX_SHIFT
) |
2945 (vector
<< I40E_QINT_TQCTL_MSIX_INDX_SHIFT
) |
2946 ((qp
+1) << I40E_QINT_TQCTL_NEXTQ_INDX_SHIFT
)|
2948 << I40E_QINT_TQCTL_NEXTQ_TYPE_SHIFT
);
2950 /* Terminate the linked list */
2951 if (q
== (q_vector
->num_ringpairs
- 1))
2952 val
|= (I40E_QUEUE_END_OF_LIST
2953 << I40E_QINT_TQCTL_NEXTQ_INDX_SHIFT
);
2955 wr32(hw
, I40E_QINT_TQCTL(qp
), val
);
2964 * i40e_enable_misc_int_causes - enable the non-queue interrupts
2965 * @hw: ptr to the hardware info
2967 static void i40e_enable_misc_int_causes(struct i40e_pf
*pf
)
2969 struct i40e_hw
*hw
= &pf
->hw
;
2972 /* clear things first */
2973 wr32(hw
, I40E_PFINT_ICR0_ENA
, 0); /* disable all */
2974 rd32(hw
, I40E_PFINT_ICR0
); /* read to clear */
2976 val
= I40E_PFINT_ICR0_ENA_ECC_ERR_MASK
|
2977 I40E_PFINT_ICR0_ENA_MAL_DETECT_MASK
|
2978 I40E_PFINT_ICR0_ENA_GRST_MASK
|
2979 I40E_PFINT_ICR0_ENA_PCI_EXCEPTION_MASK
|
2980 I40E_PFINT_ICR0_ENA_GPIO_MASK
|
2981 I40E_PFINT_ICR0_ENA_HMC_ERR_MASK
|
2982 I40E_PFINT_ICR0_ENA_VFLR_MASK
|
2983 I40E_PFINT_ICR0_ENA_ADMINQ_MASK
;
2985 if (pf
->flags
& I40E_FLAG_IWARP_ENABLED
)
2986 val
|= I40E_PFINT_ICR0_ENA_PE_CRITERR_MASK
;
2988 if (pf
->flags
& I40E_FLAG_PTP
)
2989 val
|= I40E_PFINT_ICR0_ENA_TIMESYNC_MASK
;
2991 wr32(hw
, I40E_PFINT_ICR0_ENA
, val
);
2993 /* SW_ITR_IDX = 0, but don't change INTENA */
2994 wr32(hw
, I40E_PFINT_DYN_CTL0
, I40E_PFINT_DYN_CTL0_SW_ITR_INDX_MASK
|
2995 I40E_PFINT_DYN_CTL0_INTENA_MSK_MASK
);
2997 /* OTHER_ITR_IDX = 0 */
2998 wr32(hw
, I40E_PFINT_STAT_CTL0
, 0);
3002 * i40e_configure_msi_and_legacy - Legacy mode interrupt config in the HW
3003 * @vsi: the VSI being configured
3005 static void i40e_configure_msi_and_legacy(struct i40e_vsi
*vsi
)
3007 struct i40e_q_vector
*q_vector
= vsi
->q_vectors
[0];
3008 struct i40e_pf
*pf
= vsi
->back
;
3009 struct i40e_hw
*hw
= &pf
->hw
;
3012 /* set the ITR configuration */
3013 q_vector
->rx
.itr
= ITR_TO_REG(vsi
->rx_itr_setting
);
3014 q_vector
->rx
.latency_range
= I40E_LOW_LATENCY
;
3015 wr32(hw
, I40E_PFINT_ITR0(I40E_RX_ITR
), q_vector
->rx
.itr
);
3016 q_vector
->tx
.itr
= ITR_TO_REG(vsi
->tx_itr_setting
);
3017 q_vector
->tx
.latency_range
= I40E_LOW_LATENCY
;
3018 wr32(hw
, I40E_PFINT_ITR0(I40E_TX_ITR
), q_vector
->tx
.itr
);
3020 i40e_enable_misc_int_causes(pf
);
3022 /* FIRSTQ_INDX = 0, FIRSTQ_TYPE = 0 (rx) */
3023 wr32(hw
, I40E_PFINT_LNKLST0
, 0);
3025 /* Associate the queue pair to the vector and enable the queue int */
3026 val
= I40E_QINT_RQCTL_CAUSE_ENA_MASK
|
3027 (I40E_RX_ITR
<< I40E_QINT_RQCTL_ITR_INDX_SHIFT
) |
3028 (I40E_QUEUE_TYPE_TX
<< I40E_QINT_TQCTL_NEXTQ_TYPE_SHIFT
);
3030 wr32(hw
, I40E_QINT_RQCTL(0), val
);
3032 val
= I40E_QINT_TQCTL_CAUSE_ENA_MASK
|
3033 (I40E_TX_ITR
<< I40E_QINT_TQCTL_ITR_INDX_SHIFT
) |
3034 (I40E_QUEUE_END_OF_LIST
<< I40E_QINT_TQCTL_NEXTQ_INDX_SHIFT
);
3036 wr32(hw
, I40E_QINT_TQCTL(0), val
);
3041 * i40e_irq_dynamic_disable_icr0 - Disable default interrupt generation for icr0
3042 * @pf: board private structure
3044 void i40e_irq_dynamic_disable_icr0(struct i40e_pf
*pf
)
3046 struct i40e_hw
*hw
= &pf
->hw
;
3048 wr32(hw
, I40E_PFINT_DYN_CTL0
,
3049 I40E_ITR_NONE
<< I40E_PFINT_DYN_CTLN_ITR_INDX_SHIFT
);
3054 * i40e_irq_dynamic_enable_icr0 - Enable default interrupt generation for icr0
3055 * @pf: board private structure
3057 void i40e_irq_dynamic_enable_icr0(struct i40e_pf
*pf
)
3059 struct i40e_hw
*hw
= &pf
->hw
;
3062 val
= I40E_PFINT_DYN_CTL0_INTENA_MASK
|
3063 I40E_PFINT_DYN_CTL0_CLEARPBA_MASK
|
3064 (I40E_ITR_NONE
<< I40E_PFINT_DYN_CTL0_ITR_INDX_SHIFT
);
3066 wr32(hw
, I40E_PFINT_DYN_CTL0
, val
);
3071 * i40e_irq_dynamic_disable - Disable default interrupt generation settings
3072 * @vsi: pointer to a vsi
3073 * @vector: disable a particular Hw Interrupt vector
3075 void i40e_irq_dynamic_disable(struct i40e_vsi
*vsi
, int vector
)
3077 struct i40e_pf
*pf
= vsi
->back
;
3078 struct i40e_hw
*hw
= &pf
->hw
;
3081 val
= I40E_ITR_NONE
<< I40E_PFINT_DYN_CTLN_ITR_INDX_SHIFT
;
3082 wr32(hw
, I40E_PFINT_DYN_CTLN(vector
- 1), val
);
3087 * i40e_msix_clean_rings - MSIX mode Interrupt Handler
3088 * @irq: interrupt number
3089 * @data: pointer to a q_vector
3091 static irqreturn_t
i40e_msix_clean_rings(int irq
, void *data
)
3093 struct i40e_q_vector
*q_vector
= data
;
3095 if (!q_vector
->tx
.ring
&& !q_vector
->rx
.ring
)
3098 napi_schedule(&q_vector
->napi
);
3104 * i40e_vsi_request_irq_msix - Initialize MSI-X interrupts
3105 * @vsi: the VSI being configured
3106 * @basename: name for the vector
3108 * Allocates MSI-X vectors and requests interrupts from the kernel.
3110 static int i40e_vsi_request_irq_msix(struct i40e_vsi
*vsi
, char *basename
)
3112 int q_vectors
= vsi
->num_q_vectors
;
3113 struct i40e_pf
*pf
= vsi
->back
;
3114 int base
= vsi
->base_vector
;
3119 for (vector
= 0; vector
< q_vectors
; vector
++) {
3120 struct i40e_q_vector
*q_vector
= vsi
->q_vectors
[vector
];
3122 if (q_vector
->tx
.ring
&& q_vector
->rx
.ring
) {
3123 snprintf(q_vector
->name
, sizeof(q_vector
->name
) - 1,
3124 "%s-%s-%d", basename
, "TxRx", rx_int_idx
++);
3126 } else if (q_vector
->rx
.ring
) {
3127 snprintf(q_vector
->name
, sizeof(q_vector
->name
) - 1,
3128 "%s-%s-%d", basename
, "rx", rx_int_idx
++);
3129 } else if (q_vector
->tx
.ring
) {
3130 snprintf(q_vector
->name
, sizeof(q_vector
->name
) - 1,
3131 "%s-%s-%d", basename
, "tx", tx_int_idx
++);
3133 /* skip this unused q_vector */
3136 err
= request_irq(pf
->msix_entries
[base
+ vector
].vector
,
3142 dev_info(&pf
->pdev
->dev
,
3143 "MSIX request_irq failed, error: %d\n", err
);
3144 goto free_queue_irqs
;
3146 /* assign the mask for this irq */
3147 irq_set_affinity_hint(pf
->msix_entries
[base
+ vector
].vector
,
3148 &q_vector
->affinity_mask
);
3151 vsi
->irqs_ready
= true;
3157 irq_set_affinity_hint(pf
->msix_entries
[base
+ vector
].vector
,
3159 free_irq(pf
->msix_entries
[base
+ vector
].vector
,
3160 &(vsi
->q_vectors
[vector
]));
3166 * i40e_vsi_disable_irq - Mask off queue interrupt generation on the VSI
3167 * @vsi: the VSI being un-configured
3169 static void i40e_vsi_disable_irq(struct i40e_vsi
*vsi
)
3171 struct i40e_pf
*pf
= vsi
->back
;
3172 struct i40e_hw
*hw
= &pf
->hw
;
3173 int base
= vsi
->base_vector
;
3176 for (i
= 0; i
< vsi
->num_queue_pairs
; i
++) {
3177 wr32(hw
, I40E_QINT_TQCTL(vsi
->tx_rings
[i
]->reg_idx
), 0);
3178 wr32(hw
, I40E_QINT_RQCTL(vsi
->rx_rings
[i
]->reg_idx
), 0);
3181 if (pf
->flags
& I40E_FLAG_MSIX_ENABLED
) {
3182 for (i
= vsi
->base_vector
;
3183 i
< (vsi
->num_q_vectors
+ vsi
->base_vector
); i
++)
3184 wr32(hw
, I40E_PFINT_DYN_CTLN(i
- 1), 0);
3187 for (i
= 0; i
< vsi
->num_q_vectors
; i
++)
3188 synchronize_irq(pf
->msix_entries
[i
+ base
].vector
);
3190 /* Legacy and MSI mode - this stops all interrupt handling */
3191 wr32(hw
, I40E_PFINT_ICR0_ENA
, 0);
3192 wr32(hw
, I40E_PFINT_DYN_CTL0
, 0);
3194 synchronize_irq(pf
->pdev
->irq
);
3199 * i40e_vsi_enable_irq - Enable IRQ for the given VSI
3200 * @vsi: the VSI being configured
3202 static int i40e_vsi_enable_irq(struct i40e_vsi
*vsi
)
3204 struct i40e_pf
*pf
= vsi
->back
;
3207 if (pf
->flags
& I40E_FLAG_MSIX_ENABLED
) {
3208 for (i
= 0; i
< vsi
->num_q_vectors
; i
++)
3209 i40e_irq_dynamic_enable(vsi
, i
);
3211 i40e_irq_dynamic_enable_icr0(pf
);
3214 i40e_flush(&pf
->hw
);
3219 * i40e_stop_misc_vector - Stop the vector that handles non-queue events
3220 * @pf: board private structure
3222 static void i40e_stop_misc_vector(struct i40e_pf
*pf
)
3225 wr32(&pf
->hw
, I40E_PFINT_ICR0_ENA
, 0);
3226 i40e_flush(&pf
->hw
);
3230 * i40e_intr - MSI/Legacy and non-queue interrupt handler
3231 * @irq: interrupt number
3232 * @data: pointer to a q_vector
3234 * This is the handler used for all MSI/Legacy interrupts, and deals
3235 * with both queue and non-queue interrupts. This is also used in
3236 * MSIX mode to handle the non-queue interrupts.
3238 static irqreturn_t
i40e_intr(int irq
, void *data
)
3240 struct i40e_pf
*pf
= (struct i40e_pf
*)data
;
3241 struct i40e_hw
*hw
= &pf
->hw
;
3242 irqreturn_t ret
= IRQ_NONE
;
3243 u32 icr0
, icr0_remaining
;
3246 icr0
= rd32(hw
, I40E_PFINT_ICR0
);
3247 ena_mask
= rd32(hw
, I40E_PFINT_ICR0_ENA
);
3249 /* if sharing a legacy IRQ, we might get called w/o an intr pending */
3250 if ((icr0
& I40E_PFINT_ICR0_INTEVENT_MASK
) == 0)
3253 /* if interrupt but no bits showing, must be SWINT */
3254 if (((icr0
& ~I40E_PFINT_ICR0_INTEVENT_MASK
) == 0) ||
3255 (icr0
& I40E_PFINT_ICR0_SWINT_MASK
))
3258 if ((pf
->flags
& I40E_FLAG_IWARP_ENABLED
) &&
3259 (ena_mask
& I40E_PFINT_ICR0_ENA_PE_CRITERR_MASK
)) {
3260 ena_mask
&= ~I40E_PFINT_ICR0_ENA_PE_CRITERR_MASK
;
3261 icr0
&= ~I40E_PFINT_ICR0_ENA_PE_CRITERR_MASK
;
3262 dev_info(&pf
->pdev
->dev
, "cleared PE_CRITERR\n");
3265 /* only q0 is used in MSI/Legacy mode, and none are used in MSIX */
3266 if (icr0
& I40E_PFINT_ICR0_QUEUE_0_MASK
) {
3268 /* temporarily disable queue cause for NAPI processing */
3269 u32 qval
= rd32(hw
, I40E_QINT_RQCTL(0));
3271 qval
&= ~I40E_QINT_RQCTL_CAUSE_ENA_MASK
;
3272 wr32(hw
, I40E_QINT_RQCTL(0), qval
);
3274 qval
= rd32(hw
, I40E_QINT_TQCTL(0));
3275 qval
&= ~I40E_QINT_TQCTL_CAUSE_ENA_MASK
;
3276 wr32(hw
, I40E_QINT_TQCTL(0), qval
);
3278 if (!test_bit(__I40E_DOWN
, &pf
->state
))
3279 napi_schedule(&pf
->vsi
[pf
->lan_vsi
]->q_vectors
[0]->napi
);
3282 if (icr0
& I40E_PFINT_ICR0_ADMINQ_MASK
) {
3283 ena_mask
&= ~I40E_PFINT_ICR0_ENA_ADMINQ_MASK
;
3284 set_bit(__I40E_ADMINQ_EVENT_PENDING
, &pf
->state
);
3287 if (icr0
& I40E_PFINT_ICR0_MAL_DETECT_MASK
) {
3288 ena_mask
&= ~I40E_PFINT_ICR0_ENA_MAL_DETECT_MASK
;
3289 set_bit(__I40E_MDD_EVENT_PENDING
, &pf
->state
);
3292 if (icr0
& I40E_PFINT_ICR0_VFLR_MASK
) {
3293 ena_mask
&= ~I40E_PFINT_ICR0_ENA_VFLR_MASK
;
3294 set_bit(__I40E_VFLR_EVENT_PENDING
, &pf
->state
);
3297 if (icr0
& I40E_PFINT_ICR0_GRST_MASK
) {
3298 if (!test_bit(__I40E_RESET_RECOVERY_PENDING
, &pf
->state
))
3299 set_bit(__I40E_RESET_INTR_RECEIVED
, &pf
->state
);
3300 ena_mask
&= ~I40E_PFINT_ICR0_ENA_GRST_MASK
;
3301 val
= rd32(hw
, I40E_GLGEN_RSTAT
);
3302 val
= (val
& I40E_GLGEN_RSTAT_RESET_TYPE_MASK
)
3303 >> I40E_GLGEN_RSTAT_RESET_TYPE_SHIFT
;
3304 if (val
== I40E_RESET_CORER
) {
3306 } else if (val
== I40E_RESET_GLOBR
) {
3308 } else if (val
== I40E_RESET_EMPR
) {
3310 set_bit(__I40E_EMP_RESET_INTR_RECEIVED
, &pf
->state
);
3314 if (icr0
& I40E_PFINT_ICR0_HMC_ERR_MASK
) {
3315 icr0
&= ~I40E_PFINT_ICR0_HMC_ERR_MASK
;
3316 dev_info(&pf
->pdev
->dev
, "HMC error interrupt\n");
3317 dev_info(&pf
->pdev
->dev
, "HMC error info 0x%x, HMC error data 0x%x\n",
3318 rd32(hw
, I40E_PFHMC_ERRORINFO
),
3319 rd32(hw
, I40E_PFHMC_ERRORDATA
));
3322 if (icr0
& I40E_PFINT_ICR0_TIMESYNC_MASK
) {
3323 u32 prttsyn_stat
= rd32(hw
, I40E_PRTTSYN_STAT_0
);
3325 if (prttsyn_stat
& I40E_PRTTSYN_STAT_0_TXTIME_MASK
) {
3326 icr0
&= ~I40E_PFINT_ICR0_ENA_TIMESYNC_MASK
;
3327 i40e_ptp_tx_hwtstamp(pf
);
3331 /* If a critical error is pending we have no choice but to reset the
3333 * Report and mask out any remaining unexpected interrupts.
3335 icr0_remaining
= icr0
& ena_mask
;
3336 if (icr0_remaining
) {
3337 dev_info(&pf
->pdev
->dev
, "unhandled interrupt icr0=0x%08x\n",
3339 if ((icr0_remaining
& I40E_PFINT_ICR0_PE_CRITERR_MASK
) ||
3340 (icr0_remaining
& I40E_PFINT_ICR0_PCI_EXCEPTION_MASK
) ||
3341 (icr0_remaining
& I40E_PFINT_ICR0_ECC_ERR_MASK
)) {
3342 dev_info(&pf
->pdev
->dev
, "device will be reset\n");
3343 set_bit(__I40E_PF_RESET_REQUESTED
, &pf
->state
);
3344 i40e_service_event_schedule(pf
);
3346 ena_mask
&= ~icr0_remaining
;
3351 /* re-enable interrupt causes */
3352 wr32(hw
, I40E_PFINT_ICR0_ENA
, ena_mask
);
3353 if (!test_bit(__I40E_DOWN
, &pf
->state
)) {
3354 i40e_service_event_schedule(pf
);
3355 i40e_irq_dynamic_enable_icr0(pf
);
3362 * i40e_clean_fdir_tx_irq - Reclaim resources after transmit completes
3363 * @tx_ring: tx ring to clean
3364 * @budget: how many cleans we're allowed
3366 * Returns true if there's any budget left (e.g. the clean is finished)
3368 static bool i40e_clean_fdir_tx_irq(struct i40e_ring
*tx_ring
, int budget
)
3370 struct i40e_vsi
*vsi
= tx_ring
->vsi
;
3371 u16 i
= tx_ring
->next_to_clean
;
3372 struct i40e_tx_buffer
*tx_buf
;
3373 struct i40e_tx_desc
*tx_desc
;
3375 tx_buf
= &tx_ring
->tx_bi
[i
];
3376 tx_desc
= I40E_TX_DESC(tx_ring
, i
);
3377 i
-= tx_ring
->count
;
3380 struct i40e_tx_desc
*eop_desc
= tx_buf
->next_to_watch
;
3382 /* if next_to_watch is not set then there is no work pending */
3386 /* prevent any other reads prior to eop_desc */
3387 read_barrier_depends();
3389 /* if the descriptor isn't done, no work yet to do */
3390 if (!(eop_desc
->cmd_type_offset_bsz
&
3391 cpu_to_le64(I40E_TX_DESC_DTYPE_DESC_DONE
)))
3394 /* clear next_to_watch to prevent false hangs */
3395 tx_buf
->next_to_watch
= NULL
;
3397 tx_desc
->buffer_addr
= 0;
3398 tx_desc
->cmd_type_offset_bsz
= 0;
3399 /* move past filter desc */
3404 i
-= tx_ring
->count
;
3405 tx_buf
= tx_ring
->tx_bi
;
3406 tx_desc
= I40E_TX_DESC(tx_ring
, 0);
3408 /* unmap skb header data */
3409 dma_unmap_single(tx_ring
->dev
,
3410 dma_unmap_addr(tx_buf
, dma
),
3411 dma_unmap_len(tx_buf
, len
),
3413 if (tx_buf
->tx_flags
& I40E_TX_FLAGS_FD_SB
)
3414 kfree(tx_buf
->raw_buf
);
3416 tx_buf
->raw_buf
= NULL
;
3417 tx_buf
->tx_flags
= 0;
3418 tx_buf
->next_to_watch
= NULL
;
3419 dma_unmap_len_set(tx_buf
, len
, 0);
3420 tx_desc
->buffer_addr
= 0;
3421 tx_desc
->cmd_type_offset_bsz
= 0;
3423 /* move us past the eop_desc for start of next FD desc */
3428 i
-= tx_ring
->count
;
3429 tx_buf
= tx_ring
->tx_bi
;
3430 tx_desc
= I40E_TX_DESC(tx_ring
, 0);
3433 /* update budget accounting */
3435 } while (likely(budget
));
3437 i
+= tx_ring
->count
;
3438 tx_ring
->next_to_clean
= i
;
3440 if (vsi
->back
->flags
& I40E_FLAG_MSIX_ENABLED
)
3441 i40e_irq_dynamic_enable(vsi
, tx_ring
->q_vector
->v_idx
);
3447 * i40e_fdir_clean_ring - Interrupt Handler for FDIR SB ring
3448 * @irq: interrupt number
3449 * @data: pointer to a q_vector
3451 static irqreturn_t
i40e_fdir_clean_ring(int irq
, void *data
)
3453 struct i40e_q_vector
*q_vector
= data
;
3454 struct i40e_vsi
*vsi
;
3456 if (!q_vector
->tx
.ring
)
3459 vsi
= q_vector
->tx
.ring
->vsi
;
3460 i40e_clean_fdir_tx_irq(q_vector
->tx
.ring
, vsi
->work_limit
);
3466 * i40e_map_vector_to_qp - Assigns the queue pair to the vector
3467 * @vsi: the VSI being configured
3468 * @v_idx: vector index
3469 * @qp_idx: queue pair index
3471 static void i40e_map_vector_to_qp(struct i40e_vsi
*vsi
, int v_idx
, int qp_idx
)
3473 struct i40e_q_vector
*q_vector
= vsi
->q_vectors
[v_idx
];
3474 struct i40e_ring
*tx_ring
= vsi
->tx_rings
[qp_idx
];
3475 struct i40e_ring
*rx_ring
= vsi
->rx_rings
[qp_idx
];
3477 tx_ring
->q_vector
= q_vector
;
3478 tx_ring
->next
= q_vector
->tx
.ring
;
3479 q_vector
->tx
.ring
= tx_ring
;
3480 q_vector
->tx
.count
++;
3482 rx_ring
->q_vector
= q_vector
;
3483 rx_ring
->next
= q_vector
->rx
.ring
;
3484 q_vector
->rx
.ring
= rx_ring
;
3485 q_vector
->rx
.count
++;
3489 * i40e_vsi_map_rings_to_vectors - Maps descriptor rings to vectors
3490 * @vsi: the VSI being configured
3492 * This function maps descriptor rings to the queue-specific vectors
3493 * we were allotted through the MSI-X enabling code. Ideally, we'd have
3494 * one vector per queue pair, but on a constrained vector budget, we
3495 * group the queue pairs as "efficiently" as possible.
3497 static void i40e_vsi_map_rings_to_vectors(struct i40e_vsi
*vsi
)
3499 int qp_remaining
= vsi
->num_queue_pairs
;
3500 int q_vectors
= vsi
->num_q_vectors
;
3505 /* If we don't have enough vectors for a 1-to-1 mapping, we'll have to
3506 * group them so there are multiple queues per vector.
3507 * It is also important to go through all the vectors available to be
3508 * sure that if we don't use all the vectors, that the remaining vectors
3509 * are cleared. This is especially important when decreasing the
3510 * number of queues in use.
3512 for (; v_start
< q_vectors
; v_start
++) {
3513 struct i40e_q_vector
*q_vector
= vsi
->q_vectors
[v_start
];
3515 num_ringpairs
= DIV_ROUND_UP(qp_remaining
, q_vectors
- v_start
);
3517 q_vector
->num_ringpairs
= num_ringpairs
;
3519 q_vector
->rx
.count
= 0;
3520 q_vector
->tx
.count
= 0;
3521 q_vector
->rx
.ring
= NULL
;
3522 q_vector
->tx
.ring
= NULL
;
3524 while (num_ringpairs
--) {
3525 i40e_map_vector_to_qp(vsi
, v_start
, qp_idx
);
3533 * i40e_vsi_request_irq - Request IRQ from the OS
3534 * @vsi: the VSI being configured
3535 * @basename: name for the vector
3537 static int i40e_vsi_request_irq(struct i40e_vsi
*vsi
, char *basename
)
3539 struct i40e_pf
*pf
= vsi
->back
;
3542 if (pf
->flags
& I40E_FLAG_MSIX_ENABLED
)
3543 err
= i40e_vsi_request_irq_msix(vsi
, basename
);
3544 else if (pf
->flags
& I40E_FLAG_MSI_ENABLED
)
3545 err
= request_irq(pf
->pdev
->irq
, i40e_intr
, 0,
3548 err
= request_irq(pf
->pdev
->irq
, i40e_intr
, IRQF_SHARED
,
3552 dev_info(&pf
->pdev
->dev
, "request_irq failed, Error %d\n", err
);
3557 #ifdef CONFIG_NET_POLL_CONTROLLER
3559 * i40e_netpoll - A Polling 'interrupt'handler
3560 * @netdev: network interface device structure
3562 * This is used by netconsole to send skbs without having to re-enable
3563 * interrupts. It's not called while the normal interrupt routine is executing.
3566 void i40e_netpoll(struct net_device
*netdev
)
3568 static void i40e_netpoll(struct net_device
*netdev
)
3571 struct i40e_netdev_priv
*np
= netdev_priv(netdev
);
3572 struct i40e_vsi
*vsi
= np
->vsi
;
3573 struct i40e_pf
*pf
= vsi
->back
;
3576 /* if interface is down do nothing */
3577 if (test_bit(__I40E_DOWN
, &vsi
->state
))
3580 if (pf
->flags
& I40E_FLAG_MSIX_ENABLED
) {
3581 for (i
= 0; i
< vsi
->num_q_vectors
; i
++)
3582 i40e_msix_clean_rings(0, vsi
->q_vectors
[i
]);
3584 i40e_intr(pf
->pdev
->irq
, netdev
);
3590 * i40e_pf_txq_wait - Wait for a PF's Tx queue to be enabled or disabled
3591 * @pf: the PF being configured
3592 * @pf_q: the PF queue
3593 * @enable: enable or disable state of the queue
3595 * This routine will wait for the given Tx queue of the PF to reach the
3596 * enabled or disabled state.
3597 * Returns -ETIMEDOUT in case of failing to reach the requested state after
3598 * multiple retries; else will return 0 in case of success.
3600 static int i40e_pf_txq_wait(struct i40e_pf
*pf
, int pf_q
, bool enable
)
3605 for (i
= 0; i
< I40E_QUEUE_WAIT_RETRY_LIMIT
; i
++) {
3606 tx_reg
= rd32(&pf
->hw
, I40E_QTX_ENA(pf_q
));
3607 if (enable
== !!(tx_reg
& I40E_QTX_ENA_QENA_STAT_MASK
))
3610 usleep_range(10, 20);
3612 if (i
>= I40E_QUEUE_WAIT_RETRY_LIMIT
)
3619 * i40e_vsi_control_tx - Start or stop a VSI's rings
3620 * @vsi: the VSI being configured
3621 * @enable: start or stop the rings
3623 static int i40e_vsi_control_tx(struct i40e_vsi
*vsi
, bool enable
)
3625 struct i40e_pf
*pf
= vsi
->back
;
3626 struct i40e_hw
*hw
= &pf
->hw
;
3627 int i
, j
, pf_q
, ret
= 0;
3630 pf_q
= vsi
->base_queue
;
3631 for (i
= 0; i
< vsi
->num_queue_pairs
; i
++, pf_q
++) {
3633 /* warn the TX unit of coming changes */
3634 i40e_pre_tx_queue_cfg(&pf
->hw
, pf_q
, enable
);
3636 usleep_range(10, 20);
3638 for (j
= 0; j
< 50; j
++) {
3639 tx_reg
= rd32(hw
, I40E_QTX_ENA(pf_q
));
3640 if (((tx_reg
>> I40E_QTX_ENA_QENA_REQ_SHIFT
) & 1) ==
3641 ((tx_reg
>> I40E_QTX_ENA_QENA_STAT_SHIFT
) & 1))
3643 usleep_range(1000, 2000);
3645 /* Skip if the queue is already in the requested state */
3646 if (enable
== !!(tx_reg
& I40E_QTX_ENA_QENA_STAT_MASK
))
3649 /* turn on/off the queue */
3651 wr32(hw
, I40E_QTX_HEAD(pf_q
), 0);
3652 tx_reg
|= I40E_QTX_ENA_QENA_REQ_MASK
;
3654 tx_reg
&= ~I40E_QTX_ENA_QENA_REQ_MASK
;
3657 wr32(hw
, I40E_QTX_ENA(pf_q
), tx_reg
);
3658 /* No waiting for the Tx queue to disable */
3659 if (!enable
&& test_bit(__I40E_PORT_TX_SUSPENDED
, &pf
->state
))
3662 /* wait for the change to finish */
3663 ret
= i40e_pf_txq_wait(pf
, pf_q
, enable
);
3665 dev_info(&pf
->pdev
->dev
,
3666 "VSI seid %d Tx ring %d %sable timeout\n",
3667 vsi
->seid
, pf_q
, (enable
? "en" : "dis"));
3672 if (hw
->revision_id
== 0)
3678 * i40e_pf_rxq_wait - Wait for a PF's Rx queue to be enabled or disabled
3679 * @pf: the PF being configured
3680 * @pf_q: the PF queue
3681 * @enable: enable or disable state of the queue
3683 * This routine will wait for the given Rx queue of the PF to reach the
3684 * enabled or disabled state.
3685 * Returns -ETIMEDOUT in case of failing to reach the requested state after
3686 * multiple retries; else will return 0 in case of success.
3688 static int i40e_pf_rxq_wait(struct i40e_pf
*pf
, int pf_q
, bool enable
)
3693 for (i
= 0; i
< I40E_QUEUE_WAIT_RETRY_LIMIT
; i
++) {
3694 rx_reg
= rd32(&pf
->hw
, I40E_QRX_ENA(pf_q
));
3695 if (enable
== !!(rx_reg
& I40E_QRX_ENA_QENA_STAT_MASK
))
3698 usleep_range(10, 20);
3700 if (i
>= I40E_QUEUE_WAIT_RETRY_LIMIT
)
3707 * i40e_vsi_control_rx - Start or stop a VSI's rings
3708 * @vsi: the VSI being configured
3709 * @enable: start or stop the rings
3711 static int i40e_vsi_control_rx(struct i40e_vsi
*vsi
, bool enable
)
3713 struct i40e_pf
*pf
= vsi
->back
;
3714 struct i40e_hw
*hw
= &pf
->hw
;
3715 int i
, j
, pf_q
, ret
= 0;
3718 pf_q
= vsi
->base_queue
;
3719 for (i
= 0; i
< vsi
->num_queue_pairs
; i
++, pf_q
++) {
3720 for (j
= 0; j
< 50; j
++) {
3721 rx_reg
= rd32(hw
, I40E_QRX_ENA(pf_q
));
3722 if (((rx_reg
>> I40E_QRX_ENA_QENA_REQ_SHIFT
) & 1) ==
3723 ((rx_reg
>> I40E_QRX_ENA_QENA_STAT_SHIFT
) & 1))
3725 usleep_range(1000, 2000);
3728 /* Skip if the queue is already in the requested state */
3729 if (enable
== !!(rx_reg
& I40E_QRX_ENA_QENA_STAT_MASK
))
3732 /* turn on/off the queue */
3734 rx_reg
|= I40E_QRX_ENA_QENA_REQ_MASK
;
3736 rx_reg
&= ~I40E_QRX_ENA_QENA_REQ_MASK
;
3737 wr32(hw
, I40E_QRX_ENA(pf_q
), rx_reg
);
3739 /* wait for the change to finish */
3740 ret
= i40e_pf_rxq_wait(pf
, pf_q
, enable
);
3742 dev_info(&pf
->pdev
->dev
,
3743 "VSI seid %d Rx ring %d %sable timeout\n",
3744 vsi
->seid
, pf_q
, (enable
? "en" : "dis"));
3753 * i40e_vsi_control_rings - Start or stop a VSI's rings
3754 * @vsi: the VSI being configured
3755 * @enable: start or stop the rings
3757 int i40e_vsi_control_rings(struct i40e_vsi
*vsi
, bool request
)
3761 /* do rx first for enable and last for disable */
3763 ret
= i40e_vsi_control_rx(vsi
, request
);
3766 ret
= i40e_vsi_control_tx(vsi
, request
);
3768 /* Ignore return value, we need to shutdown whatever we can */
3769 i40e_vsi_control_tx(vsi
, request
);
3770 i40e_vsi_control_rx(vsi
, request
);
3777 * i40e_vsi_free_irq - Free the irq association with the OS
3778 * @vsi: the VSI being configured
3780 static void i40e_vsi_free_irq(struct i40e_vsi
*vsi
)
3782 struct i40e_pf
*pf
= vsi
->back
;
3783 struct i40e_hw
*hw
= &pf
->hw
;
3784 int base
= vsi
->base_vector
;
3788 if (pf
->flags
& I40E_FLAG_MSIX_ENABLED
) {
3789 if (!vsi
->q_vectors
)
3792 if (!vsi
->irqs_ready
)
3795 vsi
->irqs_ready
= false;
3796 for (i
= 0; i
< vsi
->num_q_vectors
; i
++) {
3797 u16 vector
= i
+ base
;
3799 /* free only the irqs that were actually requested */
3800 if (!vsi
->q_vectors
[i
] ||
3801 !vsi
->q_vectors
[i
]->num_ringpairs
)
3804 /* clear the affinity_mask in the IRQ descriptor */
3805 irq_set_affinity_hint(pf
->msix_entries
[vector
].vector
,
3807 free_irq(pf
->msix_entries
[vector
].vector
,
3810 /* Tear down the interrupt queue link list
3812 * We know that they come in pairs and always
3813 * the Rx first, then the Tx. To clear the
3814 * link list, stick the EOL value into the
3815 * next_q field of the registers.
3817 val
= rd32(hw
, I40E_PFINT_LNKLSTN(vector
- 1));
3818 qp
= (val
& I40E_PFINT_LNKLSTN_FIRSTQ_INDX_MASK
)
3819 >> I40E_PFINT_LNKLSTN_FIRSTQ_INDX_SHIFT
;
3820 val
|= I40E_QUEUE_END_OF_LIST
3821 << I40E_PFINT_LNKLSTN_FIRSTQ_INDX_SHIFT
;
3822 wr32(hw
, I40E_PFINT_LNKLSTN(vector
- 1), val
);
3824 while (qp
!= I40E_QUEUE_END_OF_LIST
) {
3827 val
= rd32(hw
, I40E_QINT_RQCTL(qp
));
3829 val
&= ~(I40E_QINT_RQCTL_MSIX_INDX_MASK
|
3830 I40E_QINT_RQCTL_MSIX0_INDX_MASK
|
3831 I40E_QINT_RQCTL_CAUSE_ENA_MASK
|
3832 I40E_QINT_RQCTL_INTEVENT_MASK
);
3834 val
|= (I40E_QINT_RQCTL_ITR_INDX_MASK
|
3835 I40E_QINT_RQCTL_NEXTQ_INDX_MASK
);
3837 wr32(hw
, I40E_QINT_RQCTL(qp
), val
);
3839 val
= rd32(hw
, I40E_QINT_TQCTL(qp
));
3841 next
= (val
& I40E_QINT_TQCTL_NEXTQ_INDX_MASK
)
3842 >> I40E_QINT_TQCTL_NEXTQ_INDX_SHIFT
;
3844 val
&= ~(I40E_QINT_TQCTL_MSIX_INDX_MASK
|
3845 I40E_QINT_TQCTL_MSIX0_INDX_MASK
|
3846 I40E_QINT_TQCTL_CAUSE_ENA_MASK
|
3847 I40E_QINT_TQCTL_INTEVENT_MASK
);
3849 val
|= (I40E_QINT_TQCTL_ITR_INDX_MASK
|
3850 I40E_QINT_TQCTL_NEXTQ_INDX_MASK
);
3852 wr32(hw
, I40E_QINT_TQCTL(qp
), val
);
3857 free_irq(pf
->pdev
->irq
, pf
);
3859 val
= rd32(hw
, I40E_PFINT_LNKLST0
);
3860 qp
= (val
& I40E_PFINT_LNKLSTN_FIRSTQ_INDX_MASK
)
3861 >> I40E_PFINT_LNKLSTN_FIRSTQ_INDX_SHIFT
;
3862 val
|= I40E_QUEUE_END_OF_LIST
3863 << I40E_PFINT_LNKLST0_FIRSTQ_INDX_SHIFT
;
3864 wr32(hw
, I40E_PFINT_LNKLST0
, val
);
3866 val
= rd32(hw
, I40E_QINT_RQCTL(qp
));
3867 val
&= ~(I40E_QINT_RQCTL_MSIX_INDX_MASK
|
3868 I40E_QINT_RQCTL_MSIX0_INDX_MASK
|
3869 I40E_QINT_RQCTL_CAUSE_ENA_MASK
|
3870 I40E_QINT_RQCTL_INTEVENT_MASK
);
3872 val
|= (I40E_QINT_RQCTL_ITR_INDX_MASK
|
3873 I40E_QINT_RQCTL_NEXTQ_INDX_MASK
);
3875 wr32(hw
, I40E_QINT_RQCTL(qp
), val
);
3877 val
= rd32(hw
, I40E_QINT_TQCTL(qp
));
3879 val
&= ~(I40E_QINT_TQCTL_MSIX_INDX_MASK
|
3880 I40E_QINT_TQCTL_MSIX0_INDX_MASK
|
3881 I40E_QINT_TQCTL_CAUSE_ENA_MASK
|
3882 I40E_QINT_TQCTL_INTEVENT_MASK
);
3884 val
|= (I40E_QINT_TQCTL_ITR_INDX_MASK
|
3885 I40E_QINT_TQCTL_NEXTQ_INDX_MASK
);
3887 wr32(hw
, I40E_QINT_TQCTL(qp
), val
);
3892 * i40e_free_q_vector - Free memory allocated for specific interrupt vector
3893 * @vsi: the VSI being configured
3894 * @v_idx: Index of vector to be freed
3896 * This function frees the memory allocated to the q_vector. In addition if
3897 * NAPI is enabled it will delete any references to the NAPI struct prior
3898 * to freeing the q_vector.
3900 static void i40e_free_q_vector(struct i40e_vsi
*vsi
, int v_idx
)
3902 struct i40e_q_vector
*q_vector
= vsi
->q_vectors
[v_idx
];
3903 struct i40e_ring
*ring
;
3908 /* disassociate q_vector from rings */
3909 i40e_for_each_ring(ring
, q_vector
->tx
)
3910 ring
->q_vector
= NULL
;
3912 i40e_for_each_ring(ring
, q_vector
->rx
)
3913 ring
->q_vector
= NULL
;
3915 /* only VSI w/ an associated netdev is set up w/ NAPI */
3917 netif_napi_del(&q_vector
->napi
);
3919 vsi
->q_vectors
[v_idx
] = NULL
;
3921 kfree_rcu(q_vector
, rcu
);
3925 * i40e_vsi_free_q_vectors - Free memory allocated for interrupt vectors
3926 * @vsi: the VSI being un-configured
3928 * This frees the memory allocated to the q_vectors and
3929 * deletes references to the NAPI struct.
3931 static void i40e_vsi_free_q_vectors(struct i40e_vsi
*vsi
)
3935 for (v_idx
= 0; v_idx
< vsi
->num_q_vectors
; v_idx
++)
3936 i40e_free_q_vector(vsi
, v_idx
);
3940 * i40e_reset_interrupt_capability - Disable interrupt setup in OS
3941 * @pf: board private structure
3943 static void i40e_reset_interrupt_capability(struct i40e_pf
*pf
)
3945 /* If we're in Legacy mode, the interrupt was cleaned in vsi_close */
3946 if (pf
->flags
& I40E_FLAG_MSIX_ENABLED
) {
3947 pci_disable_msix(pf
->pdev
);
3948 kfree(pf
->msix_entries
);
3949 pf
->msix_entries
= NULL
;
3950 kfree(pf
->irq_pile
);
3951 pf
->irq_pile
= NULL
;
3952 } else if (pf
->flags
& I40E_FLAG_MSI_ENABLED
) {
3953 pci_disable_msi(pf
->pdev
);
3955 pf
->flags
&= ~(I40E_FLAG_MSIX_ENABLED
| I40E_FLAG_MSI_ENABLED
);
3959 * i40e_clear_interrupt_scheme - Clear the current interrupt scheme settings
3960 * @pf: board private structure
3962 * We go through and clear interrupt specific resources and reset the structure
3963 * to pre-load conditions
3965 static void i40e_clear_interrupt_scheme(struct i40e_pf
*pf
)
3969 i40e_stop_misc_vector(pf
);
3970 if (pf
->flags
& I40E_FLAG_MSIX_ENABLED
) {
3971 synchronize_irq(pf
->msix_entries
[0].vector
);
3972 free_irq(pf
->msix_entries
[0].vector
, pf
);
3975 i40e_put_lump(pf
->irq_pile
, 0, I40E_PILE_VALID_BIT
-1);
3976 for (i
= 0; i
< pf
->num_alloc_vsi
; i
++)
3978 i40e_vsi_free_q_vectors(pf
->vsi
[i
]);
3979 i40e_reset_interrupt_capability(pf
);
3983 * i40e_napi_enable_all - Enable NAPI for all q_vectors in the VSI
3984 * @vsi: the VSI being configured
3986 static void i40e_napi_enable_all(struct i40e_vsi
*vsi
)
3993 for (q_idx
= 0; q_idx
< vsi
->num_q_vectors
; q_idx
++)
3994 napi_enable(&vsi
->q_vectors
[q_idx
]->napi
);
3998 * i40e_napi_disable_all - Disable NAPI for all q_vectors in the VSI
3999 * @vsi: the VSI being configured
4001 static void i40e_napi_disable_all(struct i40e_vsi
*vsi
)
4008 for (q_idx
= 0; q_idx
< vsi
->num_q_vectors
; q_idx
++)
4009 napi_disable(&vsi
->q_vectors
[q_idx
]->napi
);
4013 * i40e_vsi_close - Shut down a VSI
4014 * @vsi: the vsi to be quelled
4016 static void i40e_vsi_close(struct i40e_vsi
*vsi
)
4018 if (!test_and_set_bit(__I40E_DOWN
, &vsi
->state
))
4020 i40e_vsi_free_irq(vsi
);
4021 i40e_vsi_free_tx_resources(vsi
);
4022 i40e_vsi_free_rx_resources(vsi
);
4023 vsi
->current_netdev_flags
= 0;
4027 * i40e_quiesce_vsi - Pause a given VSI
4028 * @vsi: the VSI being paused
4030 static void i40e_quiesce_vsi(struct i40e_vsi
*vsi
)
4032 if (test_bit(__I40E_DOWN
, &vsi
->state
))
4035 /* No need to disable FCoE VSI when Tx suspended */
4036 if ((test_bit(__I40E_PORT_TX_SUSPENDED
, &vsi
->back
->state
)) &&
4037 vsi
->type
== I40E_VSI_FCOE
) {
4038 dev_dbg(&vsi
->back
->pdev
->dev
,
4039 "VSI seid %d skipping FCoE VSI disable\n", vsi
->seid
);
4043 set_bit(__I40E_NEEDS_RESTART
, &vsi
->state
);
4044 if (vsi
->netdev
&& netif_running(vsi
->netdev
))
4045 vsi
->netdev
->netdev_ops
->ndo_stop(vsi
->netdev
);
4047 i40e_vsi_close(vsi
);
4051 * i40e_unquiesce_vsi - Resume a given VSI
4052 * @vsi: the VSI being resumed
4054 static void i40e_unquiesce_vsi(struct i40e_vsi
*vsi
)
4056 if (!test_bit(__I40E_NEEDS_RESTART
, &vsi
->state
))
4059 clear_bit(__I40E_NEEDS_RESTART
, &vsi
->state
);
4060 if (vsi
->netdev
&& netif_running(vsi
->netdev
))
4061 vsi
->netdev
->netdev_ops
->ndo_open(vsi
->netdev
);
4063 i40e_vsi_open(vsi
); /* this clears the DOWN bit */
4067 * i40e_pf_quiesce_all_vsi - Pause all VSIs on a PF
4070 static void i40e_pf_quiesce_all_vsi(struct i40e_pf
*pf
)
4074 for (v
= 0; v
< pf
->num_alloc_vsi
; v
++) {
4076 i40e_quiesce_vsi(pf
->vsi
[v
]);
4081 * i40e_pf_unquiesce_all_vsi - Resume all VSIs on a PF
4084 static void i40e_pf_unquiesce_all_vsi(struct i40e_pf
*pf
)
4088 for (v
= 0; v
< pf
->num_alloc_vsi
; v
++) {
4090 i40e_unquiesce_vsi(pf
->vsi
[v
]);
4094 #ifdef CONFIG_I40E_DCB
4096 * i40e_vsi_wait_txq_disabled - Wait for VSI's queues to be disabled
4097 * @vsi: the VSI being configured
4099 * This function waits for the given VSI's Tx queues to be disabled.
4101 static int i40e_vsi_wait_txq_disabled(struct i40e_vsi
*vsi
)
4103 struct i40e_pf
*pf
= vsi
->back
;
4106 pf_q
= vsi
->base_queue
;
4107 for (i
= 0; i
< vsi
->num_queue_pairs
; i
++, pf_q
++) {
4108 /* Check and wait for the disable status of the queue */
4109 ret
= i40e_pf_txq_wait(pf
, pf_q
, false);
4111 dev_info(&pf
->pdev
->dev
,
4112 "VSI seid %d Tx ring %d disable timeout\n",
4122 * i40e_pf_wait_txq_disabled - Wait for all queues of PF VSIs to be disabled
4125 * This function waits for the Tx queues to be in disabled state for all the
4126 * VSIs that are managed by this PF.
4128 static int i40e_pf_wait_txq_disabled(struct i40e_pf
*pf
)
4132 for (v
= 0; v
< pf
->hw
.func_caps
.num_vsis
; v
++) {
4133 /* No need to wait for FCoE VSI queues */
4134 if (pf
->vsi
[v
] && pf
->vsi
[v
]->type
!= I40E_VSI_FCOE
) {
4135 ret
= i40e_vsi_wait_txq_disabled(pf
->vsi
[v
]);
4147 * i40e_detect_recover_hung_queue - Function to detect and recover hung_queue
4148 * @q_idx: TX queue number
4149 * @vsi: Pointer to VSI struct
4151 * This function checks specified queue for given VSI. Detects hung condition.
4152 * Sets hung bit since it is two step process. Before next run of service task
4153 * if napi_poll runs, it reset 'hung' bit for respective q_vector. If not,
4154 * hung condition remain unchanged and during subsequent run, this function
4155 * issues SW interrupt to recover from hung condition.
4157 static void i40e_detect_recover_hung_queue(int q_idx
, struct i40e_vsi
*vsi
)
4159 struct i40e_ring
*tx_ring
= NULL
;
4161 u32 head
, val
, tx_pending
;
4166 /* now that we have an index, find the tx_ring struct */
4167 for (i
= 0; i
< vsi
->num_queue_pairs
; i
++) {
4168 if (vsi
->tx_rings
[i
] && vsi
->tx_rings
[i
]->desc
) {
4169 if (q_idx
== vsi
->tx_rings
[i
]->queue_index
) {
4170 tx_ring
= vsi
->tx_rings
[i
];
4179 /* Read interrupt register */
4180 if (pf
->flags
& I40E_FLAG_MSIX_ENABLED
)
4182 I40E_PFINT_DYN_CTLN(tx_ring
->q_vector
->v_idx
+
4183 tx_ring
->vsi
->base_vector
- 1));
4185 val
= rd32(&pf
->hw
, I40E_PFINT_DYN_CTL0
);
4187 head
= i40e_get_head(tx_ring
);
4189 tx_pending
= i40e_get_tx_pending(tx_ring
);
4191 /* Interrupts are disabled and TX pending is non-zero,
4192 * trigger the SW interrupt (don't wait). Worst case
4193 * there will be one extra interrupt which may result
4194 * into not cleaning any queues because queues are cleaned.
4196 if (tx_pending
&& (!(val
& I40E_PFINT_DYN_CTLN_INTENA_MASK
)))
4197 i40e_force_wb(vsi
, tx_ring
->q_vector
);
4201 * i40e_detect_recover_hung - Function to detect and recover hung_queues
4202 * @pf: pointer to PF struct
4204 * LAN VSI has netdev and netdev has TX queues. This function is to check
4205 * each of those TX queues if they are hung, trigger recovery by issuing
4208 static void i40e_detect_recover_hung(struct i40e_pf
*pf
)
4210 struct net_device
*netdev
;
4211 struct i40e_vsi
*vsi
;
4214 /* Only for LAN VSI */
4215 vsi
= pf
->vsi
[pf
->lan_vsi
];
4220 /* Make sure, VSI state is not DOWN/RECOVERY_PENDING */
4221 if (test_bit(__I40E_DOWN
, &vsi
->back
->state
) ||
4222 test_bit(__I40E_RESET_RECOVERY_PENDING
, &vsi
->back
->state
))
4225 /* Make sure type is MAIN VSI */
4226 if (vsi
->type
!= I40E_VSI_MAIN
)
4229 netdev
= vsi
->netdev
;
4233 /* Bail out if netif_carrier is not OK */
4234 if (!netif_carrier_ok(netdev
))
4237 /* Go thru' TX queues for netdev */
4238 for (i
= 0; i
< netdev
->num_tx_queues
; i
++) {
4239 struct netdev_queue
*q
;
4241 q
= netdev_get_tx_queue(netdev
, i
);
4243 i40e_detect_recover_hung_queue(i
, vsi
);
4248 * i40e_get_iscsi_tc_map - Return TC map for iSCSI APP
4249 * @pf: pointer to PF
4251 * Get TC map for ISCSI PF type that will include iSCSI TC
4254 static u8
i40e_get_iscsi_tc_map(struct i40e_pf
*pf
)
4256 struct i40e_dcb_app_priority_table app
;
4257 struct i40e_hw
*hw
= &pf
->hw
;
4258 u8 enabled_tc
= 1; /* TC0 is always enabled */
4260 /* Get the iSCSI APP TLV */
4261 struct i40e_dcbx_config
*dcbcfg
= &hw
->local_dcbx_config
;
4263 for (i
= 0; i
< dcbcfg
->numapps
; i
++) {
4264 app
= dcbcfg
->app
[i
];
4265 if (app
.selector
== I40E_APP_SEL_TCPIP
&&
4266 app
.protocolid
== I40E_APP_PROTOID_ISCSI
) {
4267 tc
= dcbcfg
->etscfg
.prioritytable
[app
.priority
];
4268 enabled_tc
|= BIT_ULL(tc
);
4277 * i40e_dcb_get_num_tc - Get the number of TCs from DCBx config
4278 * @dcbcfg: the corresponding DCBx configuration structure
4280 * Return the number of TCs from given DCBx configuration
4282 static u8
i40e_dcb_get_num_tc(struct i40e_dcbx_config
*dcbcfg
)
4287 /* Scan the ETS Config Priority Table to find
4288 * traffic class enabled for a given priority
4289 * and use the traffic class index to get the
4290 * number of traffic classes enabled
4292 for (i
= 0; i
< I40E_MAX_USER_PRIORITY
; i
++) {
4293 if (dcbcfg
->etscfg
.prioritytable
[i
] > num_tc
)
4294 num_tc
= dcbcfg
->etscfg
.prioritytable
[i
];
4297 /* Traffic class index starts from zero so
4298 * increment to return the actual count
4304 * i40e_dcb_get_enabled_tc - Get enabled traffic classes
4305 * @dcbcfg: the corresponding DCBx configuration structure
4307 * Query the current DCB configuration and return the number of
4308 * traffic classes enabled from the given DCBX config
4310 static u8
i40e_dcb_get_enabled_tc(struct i40e_dcbx_config
*dcbcfg
)
4312 u8 num_tc
= i40e_dcb_get_num_tc(dcbcfg
);
4316 for (i
= 0; i
< num_tc
; i
++)
4317 enabled_tc
|= BIT(i
);
4323 * i40e_pf_get_num_tc - Get enabled traffic classes for PF
4324 * @pf: PF being queried
4326 * Return number of traffic classes enabled for the given PF
4328 static u8
i40e_pf_get_num_tc(struct i40e_pf
*pf
)
4330 struct i40e_hw
*hw
= &pf
->hw
;
4333 struct i40e_dcbx_config
*dcbcfg
= &hw
->local_dcbx_config
;
4335 /* If DCB is not enabled then always in single TC */
4336 if (!(pf
->flags
& I40E_FLAG_DCB_ENABLED
))
4339 /* SFP mode will be enabled for all TCs on port */
4340 if (!(pf
->flags
& I40E_FLAG_MFP_ENABLED
))
4341 return i40e_dcb_get_num_tc(dcbcfg
);
4343 /* MFP mode return count of enabled TCs for this PF */
4344 if (pf
->hw
.func_caps
.iscsi
)
4345 enabled_tc
= i40e_get_iscsi_tc_map(pf
);
4347 return 1; /* Only TC0 */
4349 /* At least have TC0 */
4350 enabled_tc
= (enabled_tc
? enabled_tc
: 0x1);
4351 for (i
= 0; i
< I40E_MAX_TRAFFIC_CLASS
; i
++) {
4352 if (enabled_tc
& BIT_ULL(i
))
4359 * i40e_pf_get_default_tc - Get bitmap for first enabled TC
4360 * @pf: PF being queried
4362 * Return a bitmap for first enabled traffic class for this PF.
4364 static u8
i40e_pf_get_default_tc(struct i40e_pf
*pf
)
4366 u8 enabled_tc
= pf
->hw
.func_caps
.enabled_tcmap
;
4370 return 0x1; /* TC0 */
4372 /* Find the first enabled TC */
4373 for (i
= 0; i
< I40E_MAX_TRAFFIC_CLASS
; i
++) {
4374 if (enabled_tc
& BIT_ULL(i
))
4382 * i40e_pf_get_pf_tc_map - Get bitmap for enabled traffic classes
4383 * @pf: PF being queried
4385 * Return a bitmap for enabled traffic classes for this PF.
4387 static u8
i40e_pf_get_tc_map(struct i40e_pf
*pf
)
4389 /* If DCB is not enabled for this PF then just return default TC */
4390 if (!(pf
->flags
& I40E_FLAG_DCB_ENABLED
))
4391 return i40e_pf_get_default_tc(pf
);
4393 /* SFP mode we want PF to be enabled for all TCs */
4394 if (!(pf
->flags
& I40E_FLAG_MFP_ENABLED
))
4395 return i40e_dcb_get_enabled_tc(&pf
->hw
.local_dcbx_config
);
4397 /* MFP enabled and iSCSI PF type */
4398 if (pf
->hw
.func_caps
.iscsi
)
4399 return i40e_get_iscsi_tc_map(pf
);
4401 return i40e_pf_get_default_tc(pf
);
4405 * i40e_vsi_get_bw_info - Query VSI BW Information
4406 * @vsi: the VSI being queried
4408 * Returns 0 on success, negative value on failure
4410 static int i40e_vsi_get_bw_info(struct i40e_vsi
*vsi
)
4412 struct i40e_aqc_query_vsi_ets_sla_config_resp bw_ets_config
= {0};
4413 struct i40e_aqc_query_vsi_bw_config_resp bw_config
= {0};
4414 struct i40e_pf
*pf
= vsi
->back
;
4415 struct i40e_hw
*hw
= &pf
->hw
;
4420 /* Get the VSI level BW configuration */
4421 ret
= i40e_aq_query_vsi_bw_config(hw
, vsi
->seid
, &bw_config
, NULL
);
4423 dev_info(&pf
->pdev
->dev
,
4424 "couldn't get PF vsi bw config, err %s aq_err %s\n",
4425 i40e_stat_str(&pf
->hw
, ret
),
4426 i40e_aq_str(&pf
->hw
, pf
->hw
.aq
.asq_last_status
));
4430 /* Get the VSI level BW configuration per TC */
4431 ret
= i40e_aq_query_vsi_ets_sla_config(hw
, vsi
->seid
, &bw_ets_config
,
4434 dev_info(&pf
->pdev
->dev
,
4435 "couldn't get PF vsi ets bw config, err %s aq_err %s\n",
4436 i40e_stat_str(&pf
->hw
, ret
),
4437 i40e_aq_str(&pf
->hw
, pf
->hw
.aq
.asq_last_status
));
4441 if (bw_config
.tc_valid_bits
!= bw_ets_config
.tc_valid_bits
) {
4442 dev_info(&pf
->pdev
->dev
,
4443 "Enabled TCs mismatch from querying VSI BW info 0x%08x 0x%08x\n",
4444 bw_config
.tc_valid_bits
,
4445 bw_ets_config
.tc_valid_bits
);
4446 /* Still continuing */
4449 vsi
->bw_limit
= le16_to_cpu(bw_config
.port_bw_limit
);
4450 vsi
->bw_max_quanta
= bw_config
.max_bw
;
4451 tc_bw_max
= le16_to_cpu(bw_ets_config
.tc_bw_max
[0]) |
4452 (le16_to_cpu(bw_ets_config
.tc_bw_max
[1]) << 16);
4453 for (i
= 0; i
< I40E_MAX_TRAFFIC_CLASS
; i
++) {
4454 vsi
->bw_ets_share_credits
[i
] = bw_ets_config
.share_credits
[i
];
4455 vsi
->bw_ets_limit_credits
[i
] =
4456 le16_to_cpu(bw_ets_config
.credits
[i
]);
4457 /* 3 bits out of 4 for each TC */
4458 vsi
->bw_ets_max_quanta
[i
] = (u8
)((tc_bw_max
>> (i
*4)) & 0x7);
4465 * i40e_vsi_configure_bw_alloc - Configure VSI BW allocation per TC
4466 * @vsi: the VSI being configured
4467 * @enabled_tc: TC bitmap
4468 * @bw_credits: BW shared credits per TC
4470 * Returns 0 on success, negative value on failure
4472 static int i40e_vsi_configure_bw_alloc(struct i40e_vsi
*vsi
, u8 enabled_tc
,
4475 struct i40e_aqc_configure_vsi_tc_bw_data bw_data
;
4479 bw_data
.tc_valid_bits
= enabled_tc
;
4480 for (i
= 0; i
< I40E_MAX_TRAFFIC_CLASS
; i
++)
4481 bw_data
.tc_bw_credits
[i
] = bw_share
[i
];
4483 ret
= i40e_aq_config_vsi_tc_bw(&vsi
->back
->hw
, vsi
->seid
, &bw_data
,
4486 dev_info(&vsi
->back
->pdev
->dev
,
4487 "AQ command Config VSI BW allocation per TC failed = %d\n",
4488 vsi
->back
->hw
.aq
.asq_last_status
);
4492 for (i
= 0; i
< I40E_MAX_TRAFFIC_CLASS
; i
++)
4493 vsi
->info
.qs_handle
[i
] = bw_data
.qs_handles
[i
];
4499 * i40e_vsi_config_netdev_tc - Setup the netdev TC configuration
4500 * @vsi: the VSI being configured
4501 * @enabled_tc: TC map to be enabled
4504 static void i40e_vsi_config_netdev_tc(struct i40e_vsi
*vsi
, u8 enabled_tc
)
4506 struct net_device
*netdev
= vsi
->netdev
;
4507 struct i40e_pf
*pf
= vsi
->back
;
4508 struct i40e_hw
*hw
= &pf
->hw
;
4511 struct i40e_dcbx_config
*dcbcfg
= &hw
->local_dcbx_config
;
4517 netdev_reset_tc(netdev
);
4521 /* Set up actual enabled TCs on the VSI */
4522 if (netdev_set_num_tc(netdev
, vsi
->tc_config
.numtc
))
4525 /* set per TC queues for the VSI */
4526 for (i
= 0; i
< I40E_MAX_TRAFFIC_CLASS
; i
++) {
4527 /* Only set TC queues for enabled tcs
4529 * e.g. For a VSI that has TC0 and TC3 enabled the
4530 * enabled_tc bitmap would be 0x00001001; the driver
4531 * will set the numtc for netdev as 2 that will be
4532 * referenced by the netdev layer as TC 0 and 1.
4534 if (vsi
->tc_config
.enabled_tc
& BIT_ULL(i
))
4535 netdev_set_tc_queue(netdev
,
4536 vsi
->tc_config
.tc_info
[i
].netdev_tc
,
4537 vsi
->tc_config
.tc_info
[i
].qcount
,
4538 vsi
->tc_config
.tc_info
[i
].qoffset
);
4541 /* Assign UP2TC map for the VSI */
4542 for (i
= 0; i
< I40E_MAX_USER_PRIORITY
; i
++) {
4543 /* Get the actual TC# for the UP */
4544 u8 ets_tc
= dcbcfg
->etscfg
.prioritytable
[i
];
4545 /* Get the mapped netdev TC# for the UP */
4546 netdev_tc
= vsi
->tc_config
.tc_info
[ets_tc
].netdev_tc
;
4547 netdev_set_prio_tc_map(netdev
, i
, netdev_tc
);
4552 * i40e_vsi_update_queue_map - Update our copy of VSi info with new queue map
4553 * @vsi: the VSI being configured
4554 * @ctxt: the ctxt buffer returned from AQ VSI update param command
4556 static void i40e_vsi_update_queue_map(struct i40e_vsi
*vsi
,
4557 struct i40e_vsi_context
*ctxt
)
4559 /* copy just the sections touched not the entire info
4560 * since not all sections are valid as returned by
4563 vsi
->info
.mapping_flags
= ctxt
->info
.mapping_flags
;
4564 memcpy(&vsi
->info
.queue_mapping
,
4565 &ctxt
->info
.queue_mapping
, sizeof(vsi
->info
.queue_mapping
));
4566 memcpy(&vsi
->info
.tc_mapping
, ctxt
->info
.tc_mapping
,
4567 sizeof(vsi
->info
.tc_mapping
));
4571 * i40e_vsi_config_tc - Configure VSI Tx Scheduler for given TC map
4572 * @vsi: VSI to be configured
4573 * @enabled_tc: TC bitmap
4575 * This configures a particular VSI for TCs that are mapped to the
4576 * given TC bitmap. It uses default bandwidth share for TCs across
4577 * VSIs to configure TC for a particular VSI.
4580 * It is expected that the VSI queues have been quisced before calling
4583 static int i40e_vsi_config_tc(struct i40e_vsi
*vsi
, u8 enabled_tc
)
4585 u8 bw_share
[I40E_MAX_TRAFFIC_CLASS
] = {0};
4586 struct i40e_vsi_context ctxt
;
4590 /* Check if enabled_tc is same as existing or new TCs */
4591 if (vsi
->tc_config
.enabled_tc
== enabled_tc
)
4594 /* Enable ETS TCs with equal BW Share for now across all VSIs */
4595 for (i
= 0; i
< I40E_MAX_TRAFFIC_CLASS
; i
++) {
4596 if (enabled_tc
& BIT_ULL(i
))
4600 ret
= i40e_vsi_configure_bw_alloc(vsi
, enabled_tc
, bw_share
);
4602 dev_info(&vsi
->back
->pdev
->dev
,
4603 "Failed configuring TC map %d for VSI %d\n",
4604 enabled_tc
, vsi
->seid
);
4608 /* Update Queue Pairs Mapping for currently enabled UPs */
4609 ctxt
.seid
= vsi
->seid
;
4610 ctxt
.pf_num
= vsi
->back
->hw
.pf_id
;
4612 ctxt
.uplink_seid
= vsi
->uplink_seid
;
4613 ctxt
.info
= vsi
->info
;
4614 i40e_vsi_setup_queue_map(vsi
, &ctxt
, enabled_tc
, false);
4616 /* Update the VSI after updating the VSI queue-mapping information */
4617 ret
= i40e_aq_update_vsi_params(&vsi
->back
->hw
, &ctxt
, NULL
);
4619 dev_info(&vsi
->back
->pdev
->dev
,
4620 "Update vsi tc config failed, err %s aq_err %s\n",
4621 i40e_stat_str(&vsi
->back
->hw
, ret
),
4622 i40e_aq_str(&vsi
->back
->hw
,
4623 vsi
->back
->hw
.aq
.asq_last_status
));
4626 /* update the local VSI info with updated queue map */
4627 i40e_vsi_update_queue_map(vsi
, &ctxt
);
4628 vsi
->info
.valid_sections
= 0;
4630 /* Update current VSI BW information */
4631 ret
= i40e_vsi_get_bw_info(vsi
);
4633 dev_info(&vsi
->back
->pdev
->dev
,
4634 "Failed updating vsi bw info, err %s aq_err %s\n",
4635 i40e_stat_str(&vsi
->back
->hw
, ret
),
4636 i40e_aq_str(&vsi
->back
->hw
,
4637 vsi
->back
->hw
.aq
.asq_last_status
));
4641 /* Update the netdev TC setup */
4642 i40e_vsi_config_netdev_tc(vsi
, enabled_tc
);
4648 * i40e_veb_config_tc - Configure TCs for given VEB
4650 * @enabled_tc: TC bitmap
4652 * Configures given TC bitmap for VEB (switching) element
4654 int i40e_veb_config_tc(struct i40e_veb
*veb
, u8 enabled_tc
)
4656 struct i40e_aqc_configure_switching_comp_bw_config_data bw_data
= {0};
4657 struct i40e_pf
*pf
= veb
->pf
;
4661 /* No TCs or already enabled TCs just return */
4662 if (!enabled_tc
|| veb
->enabled_tc
== enabled_tc
)
4665 bw_data
.tc_valid_bits
= enabled_tc
;
4666 /* bw_data.absolute_credits is not set (relative) */
4668 /* Enable ETS TCs with equal BW Share for now */
4669 for (i
= 0; i
< I40E_MAX_TRAFFIC_CLASS
; i
++) {
4670 if (enabled_tc
& BIT_ULL(i
))
4671 bw_data
.tc_bw_share_credits
[i
] = 1;
4674 ret
= i40e_aq_config_switch_comp_bw_config(&pf
->hw
, veb
->seid
,
4677 dev_info(&pf
->pdev
->dev
,
4678 "VEB bw config failed, err %s aq_err %s\n",
4679 i40e_stat_str(&pf
->hw
, ret
),
4680 i40e_aq_str(&pf
->hw
, pf
->hw
.aq
.asq_last_status
));
4684 /* Update the BW information */
4685 ret
= i40e_veb_get_bw_info(veb
);
4687 dev_info(&pf
->pdev
->dev
,
4688 "Failed getting veb bw config, err %s aq_err %s\n",
4689 i40e_stat_str(&pf
->hw
, ret
),
4690 i40e_aq_str(&pf
->hw
, pf
->hw
.aq
.asq_last_status
));
4697 #ifdef CONFIG_I40E_DCB
4699 * i40e_dcb_reconfigure - Reconfigure all VEBs and VSIs
4702 * Reconfigure VEB/VSIs on a given PF; it is assumed that
4703 * the caller would've quiesce all the VSIs before calling
4706 static void i40e_dcb_reconfigure(struct i40e_pf
*pf
)
4712 /* Enable the TCs available on PF to all VEBs */
4713 tc_map
= i40e_pf_get_tc_map(pf
);
4714 for (v
= 0; v
< I40E_MAX_VEB
; v
++) {
4717 ret
= i40e_veb_config_tc(pf
->veb
[v
], tc_map
);
4719 dev_info(&pf
->pdev
->dev
,
4720 "Failed configuring TC for VEB seid=%d\n",
4722 /* Will try to configure as many components */
4726 /* Update each VSI */
4727 for (v
= 0; v
< pf
->num_alloc_vsi
; v
++) {
4731 /* - Enable all TCs for the LAN VSI
4733 * - For FCoE VSI only enable the TC configured
4734 * as per the APP TLV
4736 * - For all others keep them at TC0 for now
4738 if (v
== pf
->lan_vsi
)
4739 tc_map
= i40e_pf_get_tc_map(pf
);
4741 tc_map
= i40e_pf_get_default_tc(pf
);
4743 if (pf
->vsi
[v
]->type
== I40E_VSI_FCOE
)
4744 tc_map
= i40e_get_fcoe_tc_map(pf
);
4745 #endif /* #ifdef I40E_FCOE */
4747 ret
= i40e_vsi_config_tc(pf
->vsi
[v
], tc_map
);
4749 dev_info(&pf
->pdev
->dev
,
4750 "Failed configuring TC for VSI seid=%d\n",
4752 /* Will try to configure as many components */
4754 /* Re-configure VSI vectors based on updated TC map */
4755 i40e_vsi_map_rings_to_vectors(pf
->vsi
[v
]);
4756 if (pf
->vsi
[v
]->netdev
)
4757 i40e_dcbnl_set_all(pf
->vsi
[v
]);
4763 * i40e_resume_port_tx - Resume port Tx
4766 * Resume a port's Tx and issue a PF reset in case of failure to
4769 static int i40e_resume_port_tx(struct i40e_pf
*pf
)
4771 struct i40e_hw
*hw
= &pf
->hw
;
4774 ret
= i40e_aq_resume_port_tx(hw
, NULL
);
4776 dev_info(&pf
->pdev
->dev
,
4777 "Resume Port Tx failed, err %s aq_err %s\n",
4778 i40e_stat_str(&pf
->hw
, ret
),
4779 i40e_aq_str(&pf
->hw
, pf
->hw
.aq
.asq_last_status
));
4780 /* Schedule PF reset to recover */
4781 set_bit(__I40E_PF_RESET_REQUESTED
, &pf
->state
);
4782 i40e_service_event_schedule(pf
);
4789 * i40e_init_pf_dcb - Initialize DCB configuration
4790 * @pf: PF being configured
4792 * Query the current DCB configuration and cache it
4793 * in the hardware structure
4795 static int i40e_init_pf_dcb(struct i40e_pf
*pf
)
4797 struct i40e_hw
*hw
= &pf
->hw
;
4800 /* Do not enable DCB for SW1 and SW2 images even if the FW is capable */
4801 if (((pf
->hw
.aq
.fw_maj_ver
== 4) && (pf
->hw
.aq
.fw_min_ver
< 33)) ||
4802 (pf
->hw
.aq
.fw_maj_ver
< 4))
4805 /* Get the initial DCB configuration */
4806 err
= i40e_init_dcb(hw
);
4808 /* Device/Function is not DCBX capable */
4809 if ((!hw
->func_caps
.dcb
) ||
4810 (hw
->dcbx_status
== I40E_DCBX_STATUS_DISABLED
)) {
4811 dev_info(&pf
->pdev
->dev
,
4812 "DCBX offload is not supported or is disabled for this PF.\n");
4814 if (pf
->flags
& I40E_FLAG_MFP_ENABLED
)
4818 /* When status is not DISABLED then DCBX in FW */
4819 pf
->dcbx_cap
= DCB_CAP_DCBX_LLD_MANAGED
|
4820 DCB_CAP_DCBX_VER_IEEE
;
4822 pf
->flags
|= I40E_FLAG_DCB_CAPABLE
;
4823 /* Enable DCB tagging only when more than one TC */
4824 if (i40e_dcb_get_num_tc(&hw
->local_dcbx_config
) > 1)
4825 pf
->flags
|= I40E_FLAG_DCB_ENABLED
;
4826 dev_dbg(&pf
->pdev
->dev
,
4827 "DCBX offload is supported for this PF.\n");
4830 dev_info(&pf
->pdev
->dev
,
4831 "Query for DCB configuration failed, err %s aq_err %s\n",
4832 i40e_stat_str(&pf
->hw
, err
),
4833 i40e_aq_str(&pf
->hw
, pf
->hw
.aq
.asq_last_status
));
4839 #endif /* CONFIG_I40E_DCB */
4840 #define SPEED_SIZE 14
4843 * i40e_print_link_message - print link up or down
4844 * @vsi: the VSI for which link needs a message
4846 void i40e_print_link_message(struct i40e_vsi
*vsi
, bool isup
)
4848 char *speed
= "Unknown";
4849 char *fc
= "Unknown";
4851 if (vsi
->current_isup
== isup
)
4853 vsi
->current_isup
= isup
;
4855 netdev_info(vsi
->netdev
, "NIC Link is Down\n");
4859 /* Warn user if link speed on NPAR enabled partition is not at
4862 if (vsi
->back
->hw
.func_caps
.npar_enable
&&
4863 (vsi
->back
->hw
.phy
.link_info
.link_speed
== I40E_LINK_SPEED_1GB
||
4864 vsi
->back
->hw
.phy
.link_info
.link_speed
== I40E_LINK_SPEED_100MB
))
4865 netdev_warn(vsi
->netdev
,
4866 "The partition detected link speed that is less than 10Gbps\n");
4868 switch (vsi
->back
->hw
.phy
.link_info
.link_speed
) {
4869 case I40E_LINK_SPEED_40GB
:
4872 case I40E_LINK_SPEED_20GB
:
4875 case I40E_LINK_SPEED_10GB
:
4878 case I40E_LINK_SPEED_1GB
:
4881 case I40E_LINK_SPEED_100MB
:
4888 switch (vsi
->back
->hw
.fc
.current_mode
) {
4892 case I40E_FC_TX_PAUSE
:
4895 case I40E_FC_RX_PAUSE
:
4903 netdev_info(vsi
->netdev
, "NIC Link is Up %sbps Full Duplex, Flow Control: %s\n",
4908 * i40e_up_complete - Finish the last steps of bringing up a connection
4909 * @vsi: the VSI being configured
4911 static int i40e_up_complete(struct i40e_vsi
*vsi
)
4913 struct i40e_pf
*pf
= vsi
->back
;
4916 if (pf
->flags
& I40E_FLAG_MSIX_ENABLED
)
4917 i40e_vsi_configure_msix(vsi
);
4919 i40e_configure_msi_and_legacy(vsi
);
4922 err
= i40e_vsi_control_rings(vsi
, true);
4926 clear_bit(__I40E_DOWN
, &vsi
->state
);
4927 i40e_napi_enable_all(vsi
);
4928 i40e_vsi_enable_irq(vsi
);
4930 if ((pf
->hw
.phy
.link_info
.link_info
& I40E_AQ_LINK_UP
) &&
4932 i40e_print_link_message(vsi
, true);
4933 netif_tx_start_all_queues(vsi
->netdev
);
4934 netif_carrier_on(vsi
->netdev
);
4935 } else if (vsi
->netdev
) {
4936 i40e_print_link_message(vsi
, false);
4937 /* need to check for qualified module here*/
4938 if ((pf
->hw
.phy
.link_info
.link_info
&
4939 I40E_AQ_MEDIA_AVAILABLE
) &&
4940 (!(pf
->hw
.phy
.link_info
.an_info
&
4941 I40E_AQ_QUALIFIED_MODULE
)))
4942 netdev_err(vsi
->netdev
,
4943 "the driver failed to link because an unqualified module was detected.");
4946 /* replay FDIR SB filters */
4947 if (vsi
->type
== I40E_VSI_FDIR
) {
4948 /* reset fd counters */
4949 pf
->fd_add_err
= pf
->fd_atr_cnt
= 0;
4950 if (pf
->fd_tcp_rule
> 0) {
4951 pf
->flags
&= ~I40E_FLAG_FD_ATR_ENABLED
;
4952 if (I40E_DEBUG_FD
& pf
->hw
.debug_mask
)
4953 dev_info(&pf
->pdev
->dev
, "Forcing ATR off, sideband rules for TCP/IPv4 exist\n");
4954 pf
->fd_tcp_rule
= 0;
4956 i40e_fdir_filter_restore(vsi
);
4958 i40e_service_event_schedule(pf
);
4964 * i40e_vsi_reinit_locked - Reset the VSI
4965 * @vsi: the VSI being configured
4967 * Rebuild the ring structs after some configuration
4968 * has changed, e.g. MTU size.
4970 static void i40e_vsi_reinit_locked(struct i40e_vsi
*vsi
)
4972 struct i40e_pf
*pf
= vsi
->back
;
4974 WARN_ON(in_interrupt());
4975 while (test_and_set_bit(__I40E_CONFIG_BUSY
, &pf
->state
))
4976 usleep_range(1000, 2000);
4979 /* Give a VF some time to respond to the reset. The
4980 * two second wait is based upon the watchdog cycle in
4983 if (vsi
->type
== I40E_VSI_SRIOV
)
4986 clear_bit(__I40E_CONFIG_BUSY
, &pf
->state
);
4990 * i40e_up - Bring the connection back up after being down
4991 * @vsi: the VSI being configured
4993 int i40e_up(struct i40e_vsi
*vsi
)
4997 err
= i40e_vsi_configure(vsi
);
4999 err
= i40e_up_complete(vsi
);
5005 * i40e_down - Shutdown the connection processing
5006 * @vsi: the VSI being stopped
5008 void i40e_down(struct i40e_vsi
*vsi
)
5012 /* It is assumed that the caller of this function
5013 * sets the vsi->state __I40E_DOWN bit.
5016 netif_carrier_off(vsi
->netdev
);
5017 netif_tx_disable(vsi
->netdev
);
5019 i40e_vsi_disable_irq(vsi
);
5020 i40e_vsi_control_rings(vsi
, false);
5021 i40e_napi_disable_all(vsi
);
5023 for (i
= 0; i
< vsi
->num_queue_pairs
; i
++) {
5024 i40e_clean_tx_ring(vsi
->tx_rings
[i
]);
5025 i40e_clean_rx_ring(vsi
->rx_rings
[i
]);
5030 * i40e_setup_tc - configure multiple traffic classes
5031 * @netdev: net device to configure
5032 * @tc: number of traffic classes to enable
5035 int i40e_setup_tc(struct net_device
*netdev
, u8 tc
)
5037 static int i40e_setup_tc(struct net_device
*netdev
, u8 tc
)
5040 struct i40e_netdev_priv
*np
= netdev_priv(netdev
);
5041 struct i40e_vsi
*vsi
= np
->vsi
;
5042 struct i40e_pf
*pf
= vsi
->back
;
5047 /* Check if DCB enabled to continue */
5048 if (!(pf
->flags
& I40E_FLAG_DCB_ENABLED
)) {
5049 netdev_info(netdev
, "DCB is not enabled for adapter\n");
5053 /* Check if MFP enabled */
5054 if (pf
->flags
& I40E_FLAG_MFP_ENABLED
) {
5055 netdev_info(netdev
, "Configuring TC not supported in MFP mode\n");
5059 /* Check whether tc count is within enabled limit */
5060 if (tc
> i40e_pf_get_num_tc(pf
)) {
5061 netdev_info(netdev
, "TC count greater than enabled on link for adapter\n");
5065 /* Generate TC map for number of tc requested */
5066 for (i
= 0; i
< tc
; i
++)
5067 enabled_tc
|= BIT_ULL(i
);
5069 /* Requesting same TC configuration as already enabled */
5070 if (enabled_tc
== vsi
->tc_config
.enabled_tc
)
5073 /* Quiesce VSI queues */
5074 i40e_quiesce_vsi(vsi
);
5076 /* Configure VSI for enabled TCs */
5077 ret
= i40e_vsi_config_tc(vsi
, enabled_tc
);
5079 netdev_info(netdev
, "Failed configuring TC for VSI seid=%d\n",
5085 i40e_unquiesce_vsi(vsi
);
5092 * i40e_open - Called when a network interface is made active
5093 * @netdev: network interface device structure
5095 * The open entry point is called when a network interface is made
5096 * active by the system (IFF_UP). At this point all resources needed
5097 * for transmit and receive operations are allocated, the interrupt
5098 * handler is registered with the OS, the netdev watchdog subtask is
5099 * enabled, and the stack is notified that the interface is ready.
5101 * Returns 0 on success, negative value on failure
5103 int i40e_open(struct net_device
*netdev
)
5105 struct i40e_netdev_priv
*np
= netdev_priv(netdev
);
5106 struct i40e_vsi
*vsi
= np
->vsi
;
5107 struct i40e_pf
*pf
= vsi
->back
;
5110 /* disallow open during test or if eeprom is broken */
5111 if (test_bit(__I40E_TESTING
, &pf
->state
) ||
5112 test_bit(__I40E_BAD_EEPROM
, &pf
->state
))
5115 netif_carrier_off(netdev
);
5117 err
= i40e_vsi_open(vsi
);
5121 /* configure global TSO hardware offload settings */
5122 wr32(&pf
->hw
, I40E_GLLAN_TSOMSK_F
, be32_to_cpu(TCP_FLAG_PSH
|
5123 TCP_FLAG_FIN
) >> 16);
5124 wr32(&pf
->hw
, I40E_GLLAN_TSOMSK_M
, be32_to_cpu(TCP_FLAG_PSH
|
5126 TCP_FLAG_CWR
) >> 16);
5127 wr32(&pf
->hw
, I40E_GLLAN_TSOMSK_L
, be32_to_cpu(TCP_FLAG_CWR
) >> 16);
5129 #ifdef CONFIG_I40E_VXLAN
5130 vxlan_get_rx_port(netdev
);
5138 * @vsi: the VSI to open
5140 * Finish initialization of the VSI.
5142 * Returns 0 on success, negative value on failure
5144 int i40e_vsi_open(struct i40e_vsi
*vsi
)
5146 struct i40e_pf
*pf
= vsi
->back
;
5147 char int_name
[I40E_INT_NAME_STR_LEN
];
5150 /* allocate descriptors */
5151 err
= i40e_vsi_setup_tx_resources(vsi
);
5154 err
= i40e_vsi_setup_rx_resources(vsi
);
5158 err
= i40e_vsi_configure(vsi
);
5163 snprintf(int_name
, sizeof(int_name
) - 1, "%s-%s",
5164 dev_driver_string(&pf
->pdev
->dev
), vsi
->netdev
->name
);
5165 err
= i40e_vsi_request_irq(vsi
, int_name
);
5169 /* Notify the stack of the actual queue counts. */
5170 err
= netif_set_real_num_tx_queues(vsi
->netdev
,
5171 vsi
->num_queue_pairs
);
5173 goto err_set_queues
;
5175 err
= netif_set_real_num_rx_queues(vsi
->netdev
,
5176 vsi
->num_queue_pairs
);
5178 goto err_set_queues
;
5180 } else if (vsi
->type
== I40E_VSI_FDIR
) {
5181 snprintf(int_name
, sizeof(int_name
) - 1, "%s-%s:fdir",
5182 dev_driver_string(&pf
->pdev
->dev
),
5183 dev_name(&pf
->pdev
->dev
));
5184 err
= i40e_vsi_request_irq(vsi
, int_name
);
5191 err
= i40e_up_complete(vsi
);
5193 goto err_up_complete
;
5200 i40e_vsi_free_irq(vsi
);
5202 i40e_vsi_free_rx_resources(vsi
);
5204 i40e_vsi_free_tx_resources(vsi
);
5205 if (vsi
== pf
->vsi
[pf
->lan_vsi
])
5206 i40e_do_reset(pf
, BIT_ULL(__I40E_PF_RESET_REQUESTED
));
5212 * i40e_fdir_filter_exit - Cleans up the Flow Director accounting
5213 * @pf: Pointer to PF
5215 * This function destroys the hlist where all the Flow Director
5216 * filters were saved.
5218 static void i40e_fdir_filter_exit(struct i40e_pf
*pf
)
5220 struct i40e_fdir_filter
*filter
;
5221 struct hlist_node
*node2
;
5223 hlist_for_each_entry_safe(filter
, node2
,
5224 &pf
->fdir_filter_list
, fdir_node
) {
5225 hlist_del(&filter
->fdir_node
);
5228 pf
->fdir_pf_active_filters
= 0;
5232 * i40e_close - Disables a network interface
5233 * @netdev: network interface device structure
5235 * The close entry point is called when an interface is de-activated
5236 * by the OS. The hardware is still under the driver's control, but
5237 * this netdev interface is disabled.
5239 * Returns 0, this is not allowed to fail
5242 int i40e_close(struct net_device
*netdev
)
5244 static int i40e_close(struct net_device
*netdev
)
5247 struct i40e_netdev_priv
*np
= netdev_priv(netdev
);
5248 struct i40e_vsi
*vsi
= np
->vsi
;
5250 i40e_vsi_close(vsi
);
5256 * i40e_do_reset - Start a PF or Core Reset sequence
5257 * @pf: board private structure
5258 * @reset_flags: which reset is requested
5260 * The essential difference in resets is that the PF Reset
5261 * doesn't clear the packet buffers, doesn't reset the PE
5262 * firmware, and doesn't bother the other PFs on the chip.
5264 void i40e_do_reset(struct i40e_pf
*pf
, u32 reset_flags
)
5268 WARN_ON(in_interrupt());
5270 if (i40e_check_asq_alive(&pf
->hw
))
5271 i40e_vc_notify_reset(pf
);
5273 /* do the biggest reset indicated */
5274 if (reset_flags
& BIT_ULL(__I40E_GLOBAL_RESET_REQUESTED
)) {
5276 /* Request a Global Reset
5278 * This will start the chip's countdown to the actual full
5279 * chip reset event, and a warning interrupt to be sent
5280 * to all PFs, including the requestor. Our handler
5281 * for the warning interrupt will deal with the shutdown
5282 * and recovery of the switch setup.
5284 dev_dbg(&pf
->pdev
->dev
, "GlobalR requested\n");
5285 val
= rd32(&pf
->hw
, I40E_GLGEN_RTRIG
);
5286 val
|= I40E_GLGEN_RTRIG_GLOBR_MASK
;
5287 wr32(&pf
->hw
, I40E_GLGEN_RTRIG
, val
);
5289 } else if (reset_flags
& BIT_ULL(__I40E_CORE_RESET_REQUESTED
)) {
5291 /* Request a Core Reset
5293 * Same as Global Reset, except does *not* include the MAC/PHY
5295 dev_dbg(&pf
->pdev
->dev
, "CoreR requested\n");
5296 val
= rd32(&pf
->hw
, I40E_GLGEN_RTRIG
);
5297 val
|= I40E_GLGEN_RTRIG_CORER_MASK
;
5298 wr32(&pf
->hw
, I40E_GLGEN_RTRIG
, val
);
5299 i40e_flush(&pf
->hw
);
5301 } else if (reset_flags
& BIT_ULL(__I40E_PF_RESET_REQUESTED
)) {
5303 /* Request a PF Reset
5305 * Resets only the PF-specific registers
5307 * This goes directly to the tear-down and rebuild of
5308 * the switch, since we need to do all the recovery as
5309 * for the Core Reset.
5311 dev_dbg(&pf
->pdev
->dev
, "PFR requested\n");
5312 i40e_handle_reset_warning(pf
);
5314 } else if (reset_flags
& BIT_ULL(__I40E_REINIT_REQUESTED
)) {
5317 /* Find the VSI(s) that requested a re-init */
5318 dev_info(&pf
->pdev
->dev
,
5319 "VSI reinit requested\n");
5320 for (v
= 0; v
< pf
->num_alloc_vsi
; v
++) {
5321 struct i40e_vsi
*vsi
= pf
->vsi
[v
];
5324 test_bit(__I40E_REINIT_REQUESTED
, &vsi
->state
)) {
5325 i40e_vsi_reinit_locked(pf
->vsi
[v
]);
5326 clear_bit(__I40E_REINIT_REQUESTED
, &vsi
->state
);
5329 } else if (reset_flags
& BIT_ULL(__I40E_DOWN_REQUESTED
)) {
5332 /* Find the VSI(s) that needs to be brought down */
5333 dev_info(&pf
->pdev
->dev
, "VSI down requested\n");
5334 for (v
= 0; v
< pf
->num_alloc_vsi
; v
++) {
5335 struct i40e_vsi
*vsi
= pf
->vsi
[v
];
5338 test_bit(__I40E_DOWN_REQUESTED
, &vsi
->state
)) {
5339 set_bit(__I40E_DOWN
, &vsi
->state
);
5341 clear_bit(__I40E_DOWN_REQUESTED
, &vsi
->state
);
5345 dev_info(&pf
->pdev
->dev
,
5346 "bad reset request 0x%08x\n", reset_flags
);
5350 #ifdef CONFIG_I40E_DCB
5352 * i40e_dcb_need_reconfig - Check if DCB needs reconfig
5353 * @pf: board private structure
5354 * @old_cfg: current DCB config
5355 * @new_cfg: new DCB config
5357 bool i40e_dcb_need_reconfig(struct i40e_pf
*pf
,
5358 struct i40e_dcbx_config
*old_cfg
,
5359 struct i40e_dcbx_config
*new_cfg
)
5361 bool need_reconfig
= false;
5363 /* Check if ETS configuration has changed */
5364 if (memcmp(&new_cfg
->etscfg
,
5366 sizeof(new_cfg
->etscfg
))) {
5367 /* If Priority Table has changed reconfig is needed */
5368 if (memcmp(&new_cfg
->etscfg
.prioritytable
,
5369 &old_cfg
->etscfg
.prioritytable
,
5370 sizeof(new_cfg
->etscfg
.prioritytable
))) {
5371 need_reconfig
= true;
5372 dev_dbg(&pf
->pdev
->dev
, "ETS UP2TC changed.\n");
5375 if (memcmp(&new_cfg
->etscfg
.tcbwtable
,
5376 &old_cfg
->etscfg
.tcbwtable
,
5377 sizeof(new_cfg
->etscfg
.tcbwtable
)))
5378 dev_dbg(&pf
->pdev
->dev
, "ETS TC BW Table changed.\n");
5380 if (memcmp(&new_cfg
->etscfg
.tsatable
,
5381 &old_cfg
->etscfg
.tsatable
,
5382 sizeof(new_cfg
->etscfg
.tsatable
)))
5383 dev_dbg(&pf
->pdev
->dev
, "ETS TSA Table changed.\n");
5386 /* Check if PFC configuration has changed */
5387 if (memcmp(&new_cfg
->pfc
,
5389 sizeof(new_cfg
->pfc
))) {
5390 need_reconfig
= true;
5391 dev_dbg(&pf
->pdev
->dev
, "PFC config change detected.\n");
5394 /* Check if APP Table has changed */
5395 if (memcmp(&new_cfg
->app
,
5397 sizeof(new_cfg
->app
))) {
5398 need_reconfig
= true;
5399 dev_dbg(&pf
->pdev
->dev
, "APP Table change detected.\n");
5402 dev_dbg(&pf
->pdev
->dev
, "dcb need_reconfig=%d\n", need_reconfig
);
5403 return need_reconfig
;
5407 * i40e_handle_lldp_event - Handle LLDP Change MIB event
5408 * @pf: board private structure
5409 * @e: event info posted on ARQ
5411 static int i40e_handle_lldp_event(struct i40e_pf
*pf
,
5412 struct i40e_arq_event_info
*e
)
5414 struct i40e_aqc_lldp_get_mib
*mib
=
5415 (struct i40e_aqc_lldp_get_mib
*)&e
->desc
.params
.raw
;
5416 struct i40e_hw
*hw
= &pf
->hw
;
5417 struct i40e_dcbx_config tmp_dcbx_cfg
;
5418 bool need_reconfig
= false;
5422 /* Not DCB capable or capability disabled */
5423 if (!(pf
->flags
& I40E_FLAG_DCB_CAPABLE
))
5426 /* Ignore if event is not for Nearest Bridge */
5427 type
= ((mib
->type
>> I40E_AQ_LLDP_BRIDGE_TYPE_SHIFT
)
5428 & I40E_AQ_LLDP_BRIDGE_TYPE_MASK
);
5429 dev_dbg(&pf
->pdev
->dev
, "LLDP event mib bridge type 0x%x\n", type
);
5430 if (type
!= I40E_AQ_LLDP_BRIDGE_TYPE_NEAREST_BRIDGE
)
5433 /* Check MIB Type and return if event for Remote MIB update */
5434 type
= mib
->type
& I40E_AQ_LLDP_MIB_TYPE_MASK
;
5435 dev_dbg(&pf
->pdev
->dev
,
5436 "LLDP event mib type %s\n", type
? "remote" : "local");
5437 if (type
== I40E_AQ_LLDP_MIB_REMOTE
) {
5438 /* Update the remote cached instance and return */
5439 ret
= i40e_aq_get_dcb_config(hw
, I40E_AQ_LLDP_MIB_REMOTE
,
5440 I40E_AQ_LLDP_BRIDGE_TYPE_NEAREST_BRIDGE
,
5441 &hw
->remote_dcbx_config
);
5445 /* Store the old configuration */
5446 tmp_dcbx_cfg
= hw
->local_dcbx_config
;
5448 /* Reset the old DCBx configuration data */
5449 memset(&hw
->local_dcbx_config
, 0, sizeof(hw
->local_dcbx_config
));
5450 /* Get updated DCBX data from firmware */
5451 ret
= i40e_get_dcb_config(&pf
->hw
);
5453 dev_info(&pf
->pdev
->dev
,
5454 "Failed querying DCB configuration data from firmware, err %s aq_err %s\n",
5455 i40e_stat_str(&pf
->hw
, ret
),
5456 i40e_aq_str(&pf
->hw
, pf
->hw
.aq
.asq_last_status
));
5460 /* No change detected in DCBX configs */
5461 if (!memcmp(&tmp_dcbx_cfg
, &hw
->local_dcbx_config
,
5462 sizeof(tmp_dcbx_cfg
))) {
5463 dev_dbg(&pf
->pdev
->dev
, "No change detected in DCBX configuration.\n");
5467 need_reconfig
= i40e_dcb_need_reconfig(pf
, &tmp_dcbx_cfg
,
5468 &hw
->local_dcbx_config
);
5470 i40e_dcbnl_flush_apps(pf
, &tmp_dcbx_cfg
, &hw
->local_dcbx_config
);
5475 /* Enable DCB tagging only when more than one TC */
5476 if (i40e_dcb_get_num_tc(&hw
->local_dcbx_config
) > 1)
5477 pf
->flags
|= I40E_FLAG_DCB_ENABLED
;
5479 pf
->flags
&= ~I40E_FLAG_DCB_ENABLED
;
5481 set_bit(__I40E_PORT_TX_SUSPENDED
, &pf
->state
);
5482 /* Reconfiguration needed quiesce all VSIs */
5483 i40e_pf_quiesce_all_vsi(pf
);
5485 /* Changes in configuration update VEB/VSI */
5486 i40e_dcb_reconfigure(pf
);
5488 ret
= i40e_resume_port_tx(pf
);
5490 clear_bit(__I40E_PORT_TX_SUSPENDED
, &pf
->state
);
5491 /* In case of error no point in resuming VSIs */
5495 /* Wait for the PF's Tx queues to be disabled */
5496 ret
= i40e_pf_wait_txq_disabled(pf
);
5498 /* Schedule PF reset to recover */
5499 set_bit(__I40E_PF_RESET_REQUESTED
, &pf
->state
);
5500 i40e_service_event_schedule(pf
);
5502 i40e_pf_unquiesce_all_vsi(pf
);
5508 #endif /* CONFIG_I40E_DCB */
5511 * i40e_do_reset_safe - Protected reset path for userland calls.
5512 * @pf: board private structure
5513 * @reset_flags: which reset is requested
5516 void i40e_do_reset_safe(struct i40e_pf
*pf
, u32 reset_flags
)
5519 i40e_do_reset(pf
, reset_flags
);
5524 * i40e_handle_lan_overflow_event - Handler for LAN queue overflow event
5525 * @pf: board private structure
5526 * @e: event info posted on ARQ
5528 * Handler for LAN Queue Overflow Event generated by the firmware for PF
5531 static void i40e_handle_lan_overflow_event(struct i40e_pf
*pf
,
5532 struct i40e_arq_event_info
*e
)
5534 struct i40e_aqc_lan_overflow
*data
=
5535 (struct i40e_aqc_lan_overflow
*)&e
->desc
.params
.raw
;
5536 u32 queue
= le32_to_cpu(data
->prtdcb_rupto
);
5537 u32 qtx_ctl
= le32_to_cpu(data
->otx_ctl
);
5538 struct i40e_hw
*hw
= &pf
->hw
;
5542 dev_dbg(&pf
->pdev
->dev
, "overflow Rx Queue Number = %d QTX_CTL=0x%08x\n",
5545 /* Queue belongs to VF, find the VF and issue VF reset */
5546 if (((qtx_ctl
& I40E_QTX_CTL_PFVF_Q_MASK
)
5547 >> I40E_QTX_CTL_PFVF_Q_SHIFT
) == I40E_QTX_CTL_VF_QUEUE
) {
5548 vf_id
= (u16
)((qtx_ctl
& I40E_QTX_CTL_VFVM_INDX_MASK
)
5549 >> I40E_QTX_CTL_VFVM_INDX_SHIFT
);
5550 vf_id
-= hw
->func_caps
.vf_base_id
;
5551 vf
= &pf
->vf
[vf_id
];
5552 i40e_vc_notify_vf_reset(vf
);
5553 /* Allow VF to process pending reset notification */
5555 i40e_reset_vf(vf
, false);
5560 * i40e_service_event_complete - Finish up the service event
5561 * @pf: board private structure
5563 static void i40e_service_event_complete(struct i40e_pf
*pf
)
5565 BUG_ON(!test_bit(__I40E_SERVICE_SCHED
, &pf
->state
));
5567 /* flush memory to make sure state is correct before next watchog */
5568 smp_mb__before_atomic();
5569 clear_bit(__I40E_SERVICE_SCHED
, &pf
->state
);
5573 * i40e_get_cur_guaranteed_fd_count - Get the consumed guaranteed FD filters
5574 * @pf: board private structure
5576 u32
i40e_get_cur_guaranteed_fd_count(struct i40e_pf
*pf
)
5580 val
= rd32(&pf
->hw
, I40E_PFQF_FDSTAT
);
5581 fcnt_prog
= (val
& I40E_PFQF_FDSTAT_GUARANT_CNT_MASK
);
5586 * i40e_get_current_fd_count - Get total FD filters programmed for this PF
5587 * @pf: board private structure
5589 u32
i40e_get_current_fd_count(struct i40e_pf
*pf
)
5593 val
= rd32(&pf
->hw
, I40E_PFQF_FDSTAT
);
5594 fcnt_prog
= (val
& I40E_PFQF_FDSTAT_GUARANT_CNT_MASK
) +
5595 ((val
& I40E_PFQF_FDSTAT_BEST_CNT_MASK
) >>
5596 I40E_PFQF_FDSTAT_BEST_CNT_SHIFT
);
5601 * i40e_get_global_fd_count - Get total FD filters programmed on device
5602 * @pf: board private structure
5604 u32
i40e_get_global_fd_count(struct i40e_pf
*pf
)
5608 val
= rd32(&pf
->hw
, I40E_GLQF_FDCNT_0
);
5609 fcnt_prog
= (val
& I40E_GLQF_FDCNT_0_GUARANT_CNT_MASK
) +
5610 ((val
& I40E_GLQF_FDCNT_0_BESTCNT_MASK
) >>
5611 I40E_GLQF_FDCNT_0_BESTCNT_SHIFT
);
5616 * i40e_fdir_check_and_reenable - Function to reenabe FD ATR or SB if disabled
5617 * @pf: board private structure
5619 void i40e_fdir_check_and_reenable(struct i40e_pf
*pf
)
5621 struct i40e_fdir_filter
*filter
;
5622 u32 fcnt_prog
, fcnt_avail
;
5623 struct hlist_node
*node
;
5625 if (test_bit(__I40E_FD_FLUSH_REQUESTED
, &pf
->state
))
5628 /* Check if, FD SB or ATR was auto disabled and if there is enough room
5631 fcnt_prog
= i40e_get_global_fd_count(pf
);
5632 fcnt_avail
= pf
->fdir_pf_filter_count
;
5633 if ((fcnt_prog
< (fcnt_avail
- I40E_FDIR_BUFFER_HEAD_ROOM
)) ||
5634 (pf
->fd_add_err
== 0) ||
5635 (i40e_get_current_atr_cnt(pf
) < pf
->fd_atr_cnt
)) {
5636 if ((pf
->flags
& I40E_FLAG_FD_SB_ENABLED
) &&
5637 (pf
->auto_disable_flags
& I40E_FLAG_FD_SB_ENABLED
)) {
5638 pf
->auto_disable_flags
&= ~I40E_FLAG_FD_SB_ENABLED
;
5639 if (I40E_DEBUG_FD
& pf
->hw
.debug_mask
)
5640 dev_info(&pf
->pdev
->dev
, "FD Sideband/ntuple is being enabled since we have space in the table now\n");
5643 /* Wait for some more space to be available to turn on ATR */
5644 if (fcnt_prog
< (fcnt_avail
- I40E_FDIR_BUFFER_HEAD_ROOM
* 2)) {
5645 if ((pf
->flags
& I40E_FLAG_FD_ATR_ENABLED
) &&
5646 (pf
->auto_disable_flags
& I40E_FLAG_FD_ATR_ENABLED
)) {
5647 pf
->auto_disable_flags
&= ~I40E_FLAG_FD_ATR_ENABLED
;
5648 if (I40E_DEBUG_FD
& pf
->hw
.debug_mask
)
5649 dev_info(&pf
->pdev
->dev
, "ATR is being enabled since we have space in the table now\n");
5653 /* if hw had a problem adding a filter, delete it */
5654 if (pf
->fd_inv
> 0) {
5655 hlist_for_each_entry_safe(filter
, node
,
5656 &pf
->fdir_filter_list
, fdir_node
) {
5657 if (filter
->fd_id
== pf
->fd_inv
) {
5658 hlist_del(&filter
->fdir_node
);
5660 pf
->fdir_pf_active_filters
--;
5666 #define I40E_MIN_FD_FLUSH_INTERVAL 10
5667 #define I40E_MIN_FD_FLUSH_SB_ATR_UNSTABLE 30
5669 * i40e_fdir_flush_and_replay - Function to flush all FD filters and replay SB
5670 * @pf: board private structure
5672 static void i40e_fdir_flush_and_replay(struct i40e_pf
*pf
)
5674 unsigned long min_flush_time
;
5675 int flush_wait_retry
= 50;
5676 bool disable_atr
= false;
5680 if (!(pf
->flags
& (I40E_FLAG_FD_SB_ENABLED
| I40E_FLAG_FD_ATR_ENABLED
)))
5683 if (!time_after(jiffies
, pf
->fd_flush_timestamp
+
5684 (I40E_MIN_FD_FLUSH_INTERVAL
* HZ
)))
5687 /* If the flush is happening too quick and we have mostly SB rules we
5688 * should not re-enable ATR for some time.
5690 min_flush_time
= pf
->fd_flush_timestamp
+
5691 (I40E_MIN_FD_FLUSH_SB_ATR_UNSTABLE
* HZ
);
5692 fd_room
= pf
->fdir_pf_filter_count
- pf
->fdir_pf_active_filters
;
5694 if (!(time_after(jiffies
, min_flush_time
)) &&
5695 (fd_room
< I40E_FDIR_BUFFER_HEAD_ROOM_FOR_ATR
)) {
5696 if (I40E_DEBUG_FD
& pf
->hw
.debug_mask
)
5697 dev_info(&pf
->pdev
->dev
, "ATR disabled, not enough FD filter space.\n");
5701 pf
->fd_flush_timestamp
= jiffies
;
5702 pf
->flags
&= ~I40E_FLAG_FD_ATR_ENABLED
;
5703 /* flush all filters */
5704 wr32(&pf
->hw
, I40E_PFQF_CTL_1
,
5705 I40E_PFQF_CTL_1_CLEARFDTABLE_MASK
);
5706 i40e_flush(&pf
->hw
);
5710 /* Check FD flush status every 5-6msec */
5711 usleep_range(5000, 6000);
5712 reg
= rd32(&pf
->hw
, I40E_PFQF_CTL_1
);
5713 if (!(reg
& I40E_PFQF_CTL_1_CLEARFDTABLE_MASK
))
5715 } while (flush_wait_retry
--);
5716 if (reg
& I40E_PFQF_CTL_1_CLEARFDTABLE_MASK
) {
5717 dev_warn(&pf
->pdev
->dev
, "FD table did not flush, needs more time\n");
5719 /* replay sideband filters */
5720 i40e_fdir_filter_restore(pf
->vsi
[pf
->lan_vsi
]);
5722 pf
->flags
|= I40E_FLAG_FD_ATR_ENABLED
;
5723 clear_bit(__I40E_FD_FLUSH_REQUESTED
, &pf
->state
);
5724 if (I40E_DEBUG_FD
& pf
->hw
.debug_mask
)
5725 dev_info(&pf
->pdev
->dev
, "FD Filter table flushed and FD-SB replayed.\n");
5731 * i40e_get_current_atr_count - Get the count of total FD ATR filters programmed
5732 * @pf: board private structure
5734 u32
i40e_get_current_atr_cnt(struct i40e_pf
*pf
)
5736 return i40e_get_current_fd_count(pf
) - pf
->fdir_pf_active_filters
;
5739 /* We can see up to 256 filter programming desc in transit if the filters are
5740 * being applied really fast; before we see the first
5741 * filter miss error on Rx queue 0. Accumulating enough error messages before
5742 * reacting will make sure we don't cause flush too often.
5744 #define I40E_MAX_FD_PROGRAM_ERROR 256
5747 * i40e_fdir_reinit_subtask - Worker thread to reinit FDIR filter table
5748 * @pf: board private structure
5750 static void i40e_fdir_reinit_subtask(struct i40e_pf
*pf
)
5753 /* if interface is down do nothing */
5754 if (test_bit(__I40E_DOWN
, &pf
->state
))
5757 if (!(pf
->flags
& (I40E_FLAG_FD_SB_ENABLED
| I40E_FLAG_FD_ATR_ENABLED
)))
5760 if (test_bit(__I40E_FD_FLUSH_REQUESTED
, &pf
->state
))
5761 i40e_fdir_flush_and_replay(pf
);
5763 i40e_fdir_check_and_reenable(pf
);
5768 * i40e_vsi_link_event - notify VSI of a link event
5769 * @vsi: vsi to be notified
5770 * @link_up: link up or down
5772 static void i40e_vsi_link_event(struct i40e_vsi
*vsi
, bool link_up
)
5774 if (!vsi
|| test_bit(__I40E_DOWN
, &vsi
->state
))
5777 switch (vsi
->type
) {
5782 if (!vsi
->netdev
|| !vsi
->netdev_registered
)
5786 netif_carrier_on(vsi
->netdev
);
5787 netif_tx_wake_all_queues(vsi
->netdev
);
5789 netif_carrier_off(vsi
->netdev
);
5790 netif_tx_stop_all_queues(vsi
->netdev
);
5794 case I40E_VSI_SRIOV
:
5795 case I40E_VSI_VMDQ2
:
5797 case I40E_VSI_MIRROR
:
5799 /* there is no notification for other VSIs */
5805 * i40e_veb_link_event - notify elements on the veb of a link event
5806 * @veb: veb to be notified
5807 * @link_up: link up or down
5809 static void i40e_veb_link_event(struct i40e_veb
*veb
, bool link_up
)
5814 if (!veb
|| !veb
->pf
)
5818 /* depth first... */
5819 for (i
= 0; i
< I40E_MAX_VEB
; i
++)
5820 if (pf
->veb
[i
] && (pf
->veb
[i
]->uplink_seid
== veb
->seid
))
5821 i40e_veb_link_event(pf
->veb
[i
], link_up
);
5823 /* ... now the local VSIs */
5824 for (i
= 0; i
< pf
->num_alloc_vsi
; i
++)
5825 if (pf
->vsi
[i
] && (pf
->vsi
[i
]->uplink_seid
== veb
->seid
))
5826 i40e_vsi_link_event(pf
->vsi
[i
], link_up
);
5830 * i40e_link_event - Update netif_carrier status
5831 * @pf: board private structure
5833 static void i40e_link_event(struct i40e_pf
*pf
)
5835 struct i40e_vsi
*vsi
= pf
->vsi
[pf
->lan_vsi
];
5836 u8 new_link_speed
, old_link_speed
;
5838 bool new_link
, old_link
;
5840 /* set this to force the get_link_status call to refresh state */
5841 pf
->hw
.phy
.get_link_info
= true;
5843 old_link
= (pf
->hw
.phy
.link_info_old
.link_info
& I40E_AQ_LINK_UP
);
5845 status
= i40e_get_link_status(&pf
->hw
, &new_link
);
5847 dev_dbg(&pf
->pdev
->dev
, "couldn't get link state, status: %d\n",
5852 old_link_speed
= pf
->hw
.phy
.link_info_old
.link_speed
;
5853 new_link_speed
= pf
->hw
.phy
.link_info
.link_speed
;
5855 if (new_link
== old_link
&&
5856 new_link_speed
== old_link_speed
&&
5857 (test_bit(__I40E_DOWN
, &vsi
->state
) ||
5858 new_link
== netif_carrier_ok(vsi
->netdev
)))
5861 if (!test_bit(__I40E_DOWN
, &vsi
->state
))
5862 i40e_print_link_message(vsi
, new_link
);
5864 /* Notify the base of the switch tree connected to
5865 * the link. Floating VEBs are not notified.
5867 if (pf
->lan_veb
!= I40E_NO_VEB
&& pf
->veb
[pf
->lan_veb
])
5868 i40e_veb_link_event(pf
->veb
[pf
->lan_veb
], new_link
);
5870 i40e_vsi_link_event(vsi
, new_link
);
5873 i40e_vc_notify_link_state(pf
);
5875 if (pf
->flags
& I40E_FLAG_PTP
)
5876 i40e_ptp_set_increment(pf
);
5880 * i40e_watchdog_subtask - periodic checks not using event driven response
5881 * @pf: board private structure
5883 static void i40e_watchdog_subtask(struct i40e_pf
*pf
)
5887 /* if interface is down do nothing */
5888 if (test_bit(__I40E_DOWN
, &pf
->state
) ||
5889 test_bit(__I40E_CONFIG_BUSY
, &pf
->state
))
5892 /* make sure we don't do these things too often */
5893 if (time_before(jiffies
, (pf
->service_timer_previous
+
5894 pf
->service_timer_period
)))
5896 pf
->service_timer_previous
= jiffies
;
5898 if (pf
->flags
& I40E_FLAG_LINK_POLLING_ENABLED
)
5899 i40e_link_event(pf
);
5901 /* Update the stats for active netdevs so the network stack
5902 * can look at updated numbers whenever it cares to
5904 for (i
= 0; i
< pf
->num_alloc_vsi
; i
++)
5905 if (pf
->vsi
[i
] && pf
->vsi
[i
]->netdev
)
5906 i40e_update_stats(pf
->vsi
[i
]);
5908 if (pf
->flags
& I40E_FLAG_VEB_STATS_ENABLED
) {
5909 /* Update the stats for the active switching components */
5910 for (i
= 0; i
< I40E_MAX_VEB
; i
++)
5912 i40e_update_veb_stats(pf
->veb
[i
]);
5915 i40e_ptp_rx_hang(pf
->vsi
[pf
->lan_vsi
]);
5919 * i40e_reset_subtask - Set up for resetting the device and driver
5920 * @pf: board private structure
5922 static void i40e_reset_subtask(struct i40e_pf
*pf
)
5924 u32 reset_flags
= 0;
5927 if (test_bit(__I40E_REINIT_REQUESTED
, &pf
->state
)) {
5928 reset_flags
|= BIT_ULL(__I40E_REINIT_REQUESTED
);
5929 clear_bit(__I40E_REINIT_REQUESTED
, &pf
->state
);
5931 if (test_bit(__I40E_PF_RESET_REQUESTED
, &pf
->state
)) {
5932 reset_flags
|= BIT_ULL(__I40E_PF_RESET_REQUESTED
);
5933 clear_bit(__I40E_PF_RESET_REQUESTED
, &pf
->state
);
5935 if (test_bit(__I40E_CORE_RESET_REQUESTED
, &pf
->state
)) {
5936 reset_flags
|= BIT_ULL(__I40E_CORE_RESET_REQUESTED
);
5937 clear_bit(__I40E_CORE_RESET_REQUESTED
, &pf
->state
);
5939 if (test_bit(__I40E_GLOBAL_RESET_REQUESTED
, &pf
->state
)) {
5940 reset_flags
|= BIT_ULL(__I40E_GLOBAL_RESET_REQUESTED
);
5941 clear_bit(__I40E_GLOBAL_RESET_REQUESTED
, &pf
->state
);
5943 if (test_bit(__I40E_DOWN_REQUESTED
, &pf
->state
)) {
5944 reset_flags
|= BIT_ULL(__I40E_DOWN_REQUESTED
);
5945 clear_bit(__I40E_DOWN_REQUESTED
, &pf
->state
);
5948 /* If there's a recovery already waiting, it takes
5949 * precedence before starting a new reset sequence.
5951 if (test_bit(__I40E_RESET_INTR_RECEIVED
, &pf
->state
)) {
5952 i40e_handle_reset_warning(pf
);
5956 /* If we're already down or resetting, just bail */
5958 !test_bit(__I40E_DOWN
, &pf
->state
) &&
5959 !test_bit(__I40E_CONFIG_BUSY
, &pf
->state
))
5960 i40e_do_reset(pf
, reset_flags
);
5967 * i40e_handle_link_event - Handle link event
5968 * @pf: board private structure
5969 * @e: event info posted on ARQ
5971 static void i40e_handle_link_event(struct i40e_pf
*pf
,
5972 struct i40e_arq_event_info
*e
)
5974 struct i40e_hw
*hw
= &pf
->hw
;
5975 struct i40e_aqc_get_link_status
*status
=
5976 (struct i40e_aqc_get_link_status
*)&e
->desc
.params
.raw
;
5978 /* save off old link status information */
5979 hw
->phy
.link_info_old
= hw
->phy
.link_info
;
5981 /* Do a new status request to re-enable LSE reporting
5982 * and load new status information into the hw struct
5983 * This completely ignores any state information
5984 * in the ARQ event info, instead choosing to always
5985 * issue the AQ update link status command.
5987 i40e_link_event(pf
);
5989 /* check for unqualified module, if link is down */
5990 if ((status
->link_info
& I40E_AQ_MEDIA_AVAILABLE
) &&
5991 (!(status
->an_info
& I40E_AQ_QUALIFIED_MODULE
)) &&
5992 (!(status
->link_info
& I40E_AQ_LINK_UP
)))
5993 dev_err(&pf
->pdev
->dev
,
5994 "The driver failed to link because an unqualified module was detected.\n");
5998 * i40e_clean_adminq_subtask - Clean the AdminQ rings
5999 * @pf: board private structure
6001 static void i40e_clean_adminq_subtask(struct i40e_pf
*pf
)
6003 struct i40e_arq_event_info event
;
6004 struct i40e_hw
*hw
= &pf
->hw
;
6011 /* Do not run clean AQ when PF reset fails */
6012 if (test_bit(__I40E_RESET_FAILED
, &pf
->state
))
6015 /* check for error indications */
6016 val
= rd32(&pf
->hw
, pf
->hw
.aq
.arq
.len
);
6018 if (val
& I40E_PF_ARQLEN_ARQVFE_MASK
) {
6019 dev_info(&pf
->pdev
->dev
, "ARQ VF Error detected\n");
6020 val
&= ~I40E_PF_ARQLEN_ARQVFE_MASK
;
6022 if (val
& I40E_PF_ARQLEN_ARQOVFL_MASK
) {
6023 dev_info(&pf
->pdev
->dev
, "ARQ Overflow Error detected\n");
6024 val
&= ~I40E_PF_ARQLEN_ARQOVFL_MASK
;
6026 if (val
& I40E_PF_ARQLEN_ARQCRIT_MASK
) {
6027 dev_info(&pf
->pdev
->dev
, "ARQ Critical Error detected\n");
6028 val
&= ~I40E_PF_ARQLEN_ARQCRIT_MASK
;
6031 wr32(&pf
->hw
, pf
->hw
.aq
.arq
.len
, val
);
6033 val
= rd32(&pf
->hw
, pf
->hw
.aq
.asq
.len
);
6035 if (val
& I40E_PF_ATQLEN_ATQVFE_MASK
) {
6036 dev_info(&pf
->pdev
->dev
, "ASQ VF Error detected\n");
6037 val
&= ~I40E_PF_ATQLEN_ATQVFE_MASK
;
6039 if (val
& I40E_PF_ATQLEN_ATQOVFL_MASK
) {
6040 dev_info(&pf
->pdev
->dev
, "ASQ Overflow Error detected\n");
6041 val
&= ~I40E_PF_ATQLEN_ATQOVFL_MASK
;
6043 if (val
& I40E_PF_ATQLEN_ATQCRIT_MASK
) {
6044 dev_info(&pf
->pdev
->dev
, "ASQ Critical Error detected\n");
6045 val
&= ~I40E_PF_ATQLEN_ATQCRIT_MASK
;
6048 wr32(&pf
->hw
, pf
->hw
.aq
.asq
.len
, val
);
6050 event
.buf_len
= I40E_MAX_AQ_BUF_SIZE
;
6051 event
.msg_buf
= kzalloc(event
.buf_len
, GFP_KERNEL
);
6056 ret
= i40e_clean_arq_element(hw
, &event
, &pending
);
6057 if (ret
== I40E_ERR_ADMIN_QUEUE_NO_WORK
)
6060 dev_info(&pf
->pdev
->dev
, "ARQ event error %d\n", ret
);
6064 opcode
= le16_to_cpu(event
.desc
.opcode
);
6067 case i40e_aqc_opc_get_link_status
:
6068 i40e_handle_link_event(pf
, &event
);
6070 case i40e_aqc_opc_send_msg_to_pf
:
6071 ret
= i40e_vc_process_vf_msg(pf
,
6072 le16_to_cpu(event
.desc
.retval
),
6073 le32_to_cpu(event
.desc
.cookie_high
),
6074 le32_to_cpu(event
.desc
.cookie_low
),
6078 case i40e_aqc_opc_lldp_update_mib
:
6079 dev_dbg(&pf
->pdev
->dev
, "ARQ: Update LLDP MIB event received\n");
6080 #ifdef CONFIG_I40E_DCB
6082 ret
= i40e_handle_lldp_event(pf
, &event
);
6084 #endif /* CONFIG_I40E_DCB */
6086 case i40e_aqc_opc_event_lan_overflow
:
6087 dev_dbg(&pf
->pdev
->dev
, "ARQ LAN queue overflow event received\n");
6088 i40e_handle_lan_overflow_event(pf
, &event
);
6090 case i40e_aqc_opc_send_msg_to_peer
:
6091 dev_info(&pf
->pdev
->dev
, "ARQ: Msg from other pf\n");
6093 case i40e_aqc_opc_nvm_erase
:
6094 case i40e_aqc_opc_nvm_update
:
6095 i40e_debug(&pf
->hw
, I40E_DEBUG_NVM
, "ARQ NVM operation completed\n");
6098 dev_info(&pf
->pdev
->dev
,
6099 "ARQ Error: Unknown event 0x%04x received\n",
6103 } while (pending
&& (i
++ < pf
->adminq_work_limit
));
6105 clear_bit(__I40E_ADMINQ_EVENT_PENDING
, &pf
->state
);
6106 /* re-enable Admin queue interrupt cause */
6107 val
= rd32(hw
, I40E_PFINT_ICR0_ENA
);
6108 val
|= I40E_PFINT_ICR0_ENA_ADMINQ_MASK
;
6109 wr32(hw
, I40E_PFINT_ICR0_ENA
, val
);
6112 kfree(event
.msg_buf
);
6116 * i40e_verify_eeprom - make sure eeprom is good to use
6117 * @pf: board private structure
6119 static void i40e_verify_eeprom(struct i40e_pf
*pf
)
6123 err
= i40e_diag_eeprom_test(&pf
->hw
);
6125 /* retry in case of garbage read */
6126 err
= i40e_diag_eeprom_test(&pf
->hw
);
6128 dev_info(&pf
->pdev
->dev
, "eeprom check failed (%d), Tx/Rx traffic disabled\n",
6130 set_bit(__I40E_BAD_EEPROM
, &pf
->state
);
6134 if (!err
&& test_bit(__I40E_BAD_EEPROM
, &pf
->state
)) {
6135 dev_info(&pf
->pdev
->dev
, "eeprom check passed, Tx/Rx traffic enabled\n");
6136 clear_bit(__I40E_BAD_EEPROM
, &pf
->state
);
6141 * i40e_enable_pf_switch_lb
6142 * @pf: pointer to the PF structure
6144 * enable switch loop back or die - no point in a return value
6146 static void i40e_enable_pf_switch_lb(struct i40e_pf
*pf
)
6148 struct i40e_vsi
*vsi
= pf
->vsi
[pf
->lan_vsi
];
6149 struct i40e_vsi_context ctxt
;
6152 ctxt
.seid
= pf
->main_vsi_seid
;
6153 ctxt
.pf_num
= pf
->hw
.pf_id
;
6155 ret
= i40e_aq_get_vsi_params(&pf
->hw
, &ctxt
, NULL
);
6157 dev_info(&pf
->pdev
->dev
,
6158 "couldn't get PF vsi config, err %s aq_err %s\n",
6159 i40e_stat_str(&pf
->hw
, ret
),
6160 i40e_aq_str(&pf
->hw
, pf
->hw
.aq
.asq_last_status
));
6163 ctxt
.flags
= I40E_AQ_VSI_TYPE_PF
;
6164 ctxt
.info
.valid_sections
= cpu_to_le16(I40E_AQ_VSI_PROP_SWITCH_VALID
);
6165 ctxt
.info
.switch_id
|= cpu_to_le16(I40E_AQ_VSI_SW_ID_FLAG_ALLOW_LB
);
6167 ret
= i40e_aq_update_vsi_params(&vsi
->back
->hw
, &ctxt
, NULL
);
6169 dev_info(&pf
->pdev
->dev
,
6170 "update vsi switch failed, err %s aq_err %s\n",
6171 i40e_stat_str(&pf
->hw
, ret
),
6172 i40e_aq_str(&pf
->hw
, pf
->hw
.aq
.asq_last_status
));
6177 * i40e_disable_pf_switch_lb
6178 * @pf: pointer to the PF structure
6180 * disable switch loop back or die - no point in a return value
6182 static void i40e_disable_pf_switch_lb(struct i40e_pf
*pf
)
6184 struct i40e_vsi
*vsi
= pf
->vsi
[pf
->lan_vsi
];
6185 struct i40e_vsi_context ctxt
;
6188 ctxt
.seid
= pf
->main_vsi_seid
;
6189 ctxt
.pf_num
= pf
->hw
.pf_id
;
6191 ret
= i40e_aq_get_vsi_params(&pf
->hw
, &ctxt
, NULL
);
6193 dev_info(&pf
->pdev
->dev
,
6194 "couldn't get PF vsi config, err %s aq_err %s\n",
6195 i40e_stat_str(&pf
->hw
, ret
),
6196 i40e_aq_str(&pf
->hw
, pf
->hw
.aq
.asq_last_status
));
6199 ctxt
.flags
= I40E_AQ_VSI_TYPE_PF
;
6200 ctxt
.info
.valid_sections
= cpu_to_le16(I40E_AQ_VSI_PROP_SWITCH_VALID
);
6201 ctxt
.info
.switch_id
&= ~cpu_to_le16(I40E_AQ_VSI_SW_ID_FLAG_ALLOW_LB
);
6203 ret
= i40e_aq_update_vsi_params(&vsi
->back
->hw
, &ctxt
, NULL
);
6205 dev_info(&pf
->pdev
->dev
,
6206 "update vsi switch failed, err %s aq_err %s\n",
6207 i40e_stat_str(&pf
->hw
, ret
),
6208 i40e_aq_str(&pf
->hw
, pf
->hw
.aq
.asq_last_status
));
6213 * i40e_config_bridge_mode - Configure the HW bridge mode
6214 * @veb: pointer to the bridge instance
6216 * Configure the loop back mode for the LAN VSI that is downlink to the
6217 * specified HW bridge instance. It is expected this function is called
6218 * when a new HW bridge is instantiated.
6220 static void i40e_config_bridge_mode(struct i40e_veb
*veb
)
6222 struct i40e_pf
*pf
= veb
->pf
;
6224 if (pf
->hw
.debug_mask
& I40E_DEBUG_LAN
)
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
];
6294 vsi
->uplink_seid
= veb
->seid
;
6295 ret
= i40e_add_vsi(vsi
);
6297 dev_info(&pf
->pdev
->dev
,
6298 "rebuild of vsi_idx %d failed: %d\n",
6300 goto end_reconstitute
;
6302 i40e_vsi_reset_stats(vsi
);
6306 /* create any VEBs attached to this VEB - RECURSION */
6307 for (veb_idx
= 0; veb_idx
< I40E_MAX_VEB
; veb_idx
++) {
6308 if (pf
->veb
[veb_idx
] && pf
->veb
[veb_idx
]->veb_idx
== veb
->idx
) {
6309 pf
->veb
[veb_idx
]->uplink_seid
= veb
->seid
;
6310 ret
= i40e_reconstitute_veb(pf
->veb
[veb_idx
]);
6321 * i40e_get_capabilities - get info about the HW
6322 * @pf: the PF struct
6324 static int i40e_get_capabilities(struct i40e_pf
*pf
)
6326 struct i40e_aqc_list_capabilities_element_resp
*cap_buf
;
6331 buf_len
= 40 * sizeof(struct i40e_aqc_list_capabilities_element_resp
);
6333 cap_buf
= kzalloc(buf_len
, GFP_KERNEL
);
6337 /* this loads the data into the hw struct for us */
6338 err
= i40e_aq_discover_capabilities(&pf
->hw
, cap_buf
, buf_len
,
6340 i40e_aqc_opc_list_func_capabilities
,
6342 /* data loaded, buffer no longer needed */
6345 if (pf
->hw
.aq
.asq_last_status
== I40E_AQ_RC_ENOMEM
) {
6346 /* retry with a larger buffer */
6347 buf_len
= data_size
;
6348 } else if (pf
->hw
.aq
.asq_last_status
!= I40E_AQ_RC_OK
) {
6349 dev_info(&pf
->pdev
->dev
,
6350 "capability discovery failed, err %s aq_err %s\n",
6351 i40e_stat_str(&pf
->hw
, err
),
6352 i40e_aq_str(&pf
->hw
,
6353 pf
->hw
.aq
.asq_last_status
));
6358 if (pf
->hw
.debug_mask
& I40E_DEBUG_USER
)
6359 dev_info(&pf
->pdev
->dev
,
6360 "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",
6361 pf
->hw
.pf_id
, pf
->hw
.func_caps
.num_vfs
,
6362 pf
->hw
.func_caps
.num_msix_vectors
,
6363 pf
->hw
.func_caps
.num_msix_vectors_vf
,
6364 pf
->hw
.func_caps
.fd_filters_guaranteed
,
6365 pf
->hw
.func_caps
.fd_filters_best_effort
,
6366 pf
->hw
.func_caps
.num_tx_qp
,
6367 pf
->hw
.func_caps
.num_vsis
);
6369 #define DEF_NUM_VSI (1 + (pf->hw.func_caps.fcoe ? 1 : 0) \
6370 + pf->hw.func_caps.num_vfs)
6371 if (pf
->hw
.revision_id
== 0 && (DEF_NUM_VSI
> pf
->hw
.func_caps
.num_vsis
)) {
6372 dev_info(&pf
->pdev
->dev
,
6373 "got num_vsis %d, setting num_vsis to %d\n",
6374 pf
->hw
.func_caps
.num_vsis
, DEF_NUM_VSI
);
6375 pf
->hw
.func_caps
.num_vsis
= DEF_NUM_VSI
;
6381 static int i40e_vsi_clear(struct i40e_vsi
*vsi
);
6384 * i40e_fdir_sb_setup - initialize the Flow Director resources for Sideband
6385 * @pf: board private structure
6387 static void i40e_fdir_sb_setup(struct i40e_pf
*pf
)
6389 struct i40e_vsi
*vsi
;
6392 /* quick workaround for an NVM issue that leaves a critical register
6395 if (!rd32(&pf
->hw
, I40E_GLQF_HKEY(0))) {
6396 static const u32 hkey
[] = {
6397 0xe640d33f, 0xcdfe98ab, 0x73fa7161, 0x0d7a7d36,
6398 0xeacb7d61, 0xaa4f05b6, 0x9c5c89ed, 0xfc425ddb,
6399 0xa4654832, 0xfc7461d4, 0x8f827619, 0xf5c63c21,
6402 for (i
= 0; i
<= I40E_GLQF_HKEY_MAX_INDEX
; i
++)
6403 wr32(&pf
->hw
, I40E_GLQF_HKEY(i
), hkey
[i
]);
6406 if (!(pf
->flags
& I40E_FLAG_FD_SB_ENABLED
))
6409 /* find existing VSI and see if it needs configuring */
6411 for (i
= 0; i
< pf
->num_alloc_vsi
; i
++) {
6412 if (pf
->vsi
[i
] && pf
->vsi
[i
]->type
== I40E_VSI_FDIR
) {
6418 /* create a new VSI if none exists */
6420 vsi
= i40e_vsi_setup(pf
, I40E_VSI_FDIR
,
6421 pf
->vsi
[pf
->lan_vsi
]->seid
, 0);
6423 dev_info(&pf
->pdev
->dev
, "Couldn't create FDir VSI\n");
6424 pf
->flags
&= ~I40E_FLAG_FD_SB_ENABLED
;
6429 i40e_vsi_setup_irqhandler(vsi
, i40e_fdir_clean_ring
);
6433 * i40e_fdir_teardown - release the Flow Director resources
6434 * @pf: board private structure
6436 static void i40e_fdir_teardown(struct i40e_pf
*pf
)
6440 i40e_fdir_filter_exit(pf
);
6441 for (i
= 0; i
< pf
->num_alloc_vsi
; i
++) {
6442 if (pf
->vsi
[i
] && pf
->vsi
[i
]->type
== I40E_VSI_FDIR
) {
6443 i40e_vsi_release(pf
->vsi
[i
]);
6450 * i40e_prep_for_reset - prep for the core to reset
6451 * @pf: board private structure
6453 * Close up the VFs and other things in prep for PF Reset.
6455 static void i40e_prep_for_reset(struct i40e_pf
*pf
)
6457 struct i40e_hw
*hw
= &pf
->hw
;
6458 i40e_status ret
= 0;
6461 clear_bit(__I40E_RESET_INTR_RECEIVED
, &pf
->state
);
6462 if (test_and_set_bit(__I40E_RESET_RECOVERY_PENDING
, &pf
->state
))
6465 dev_dbg(&pf
->pdev
->dev
, "Tearing down internal switch for reset\n");
6467 /* quiesce the VSIs and their queues that are not already DOWN */
6468 i40e_pf_quiesce_all_vsi(pf
);
6470 for (v
= 0; v
< pf
->num_alloc_vsi
; v
++) {
6472 pf
->vsi
[v
]->seid
= 0;
6475 i40e_shutdown_adminq(&pf
->hw
);
6477 /* call shutdown HMC */
6478 if (hw
->hmc
.hmc_obj
) {
6479 ret
= i40e_shutdown_lan_hmc(hw
);
6481 dev_warn(&pf
->pdev
->dev
,
6482 "shutdown_lan_hmc failed: %d\n", ret
);
6487 * i40e_send_version - update firmware with driver version
6490 static void i40e_send_version(struct i40e_pf
*pf
)
6492 struct i40e_driver_version dv
;
6494 dv
.major_version
= DRV_VERSION_MAJOR
;
6495 dv
.minor_version
= DRV_VERSION_MINOR
;
6496 dv
.build_version
= DRV_VERSION_BUILD
;
6497 dv
.subbuild_version
= 0;
6498 strlcpy(dv
.driver_string
, DRV_VERSION
, sizeof(dv
.driver_string
));
6499 i40e_aq_send_driver_version(&pf
->hw
, &dv
, NULL
);
6503 * i40e_reset_and_rebuild - reset and rebuild using a saved config
6504 * @pf: board private structure
6505 * @reinit: if the Main VSI needs to re-initialized.
6507 static void i40e_reset_and_rebuild(struct i40e_pf
*pf
, bool reinit
)
6509 struct i40e_hw
*hw
= &pf
->hw
;
6510 u8 set_fc_aq_fail
= 0;
6514 /* Now we wait for GRST to settle out.
6515 * We don't have to delete the VEBs or VSIs from the hw switch
6516 * because the reset will make them disappear.
6518 ret
= i40e_pf_reset(hw
);
6520 dev_info(&pf
->pdev
->dev
, "PF reset failed, %d\n", ret
);
6521 set_bit(__I40E_RESET_FAILED
, &pf
->state
);
6522 goto clear_recovery
;
6526 if (test_bit(__I40E_DOWN
, &pf
->state
))
6527 goto clear_recovery
;
6528 dev_dbg(&pf
->pdev
->dev
, "Rebuilding internal switch\n");
6530 /* rebuild the basics for the AdminQ, HMC, and initial HW switch */
6531 ret
= i40e_init_adminq(&pf
->hw
);
6533 dev_info(&pf
->pdev
->dev
, "Rebuild AdminQ failed, err %s aq_err %s\n",
6534 i40e_stat_str(&pf
->hw
, ret
),
6535 i40e_aq_str(&pf
->hw
, pf
->hw
.aq
.asq_last_status
));
6536 goto clear_recovery
;
6539 /* re-verify the eeprom if we just had an EMP reset */
6540 if (test_and_clear_bit(__I40E_EMP_RESET_INTR_RECEIVED
, &pf
->state
))
6541 i40e_verify_eeprom(pf
);
6543 i40e_clear_pxe_mode(hw
);
6544 ret
= i40e_get_capabilities(pf
);
6546 goto end_core_reset
;
6548 ret
= i40e_init_lan_hmc(hw
, hw
->func_caps
.num_tx_qp
,
6549 hw
->func_caps
.num_rx_qp
,
6550 pf
->fcoe_hmc_cntx_num
, pf
->fcoe_hmc_filt_num
);
6552 dev_info(&pf
->pdev
->dev
, "init_lan_hmc failed: %d\n", ret
);
6553 goto end_core_reset
;
6555 ret
= i40e_configure_lan_hmc(hw
, I40E_HMC_MODEL_DIRECT_ONLY
);
6557 dev_info(&pf
->pdev
->dev
, "configure_lan_hmc failed: %d\n", ret
);
6558 goto end_core_reset
;
6561 #ifdef CONFIG_I40E_DCB
6562 ret
= i40e_init_pf_dcb(pf
);
6564 dev_info(&pf
->pdev
->dev
, "DCB init failed %d, disabled\n", ret
);
6565 pf
->flags
&= ~I40E_FLAG_DCB_CAPABLE
;
6566 /* Continue without DCB enabled */
6568 #endif /* CONFIG_I40E_DCB */
6570 i40e_init_pf_fcoe(pf
);
6573 /* do basic switch setup */
6574 ret
= i40e_setup_pf_switch(pf
, reinit
);
6576 goto end_core_reset
;
6578 /* driver is only interested in link up/down and module qualification
6579 * reports from firmware
6581 ret
= i40e_aq_set_phy_int_mask(&pf
->hw
,
6582 I40E_AQ_EVENT_LINK_UPDOWN
|
6583 I40E_AQ_EVENT_MODULE_QUAL_FAIL
, NULL
);
6585 dev_info(&pf
->pdev
->dev
, "set phy mask fail, err %s aq_err %s\n",
6586 i40e_stat_str(&pf
->hw
, ret
),
6587 i40e_aq_str(&pf
->hw
, pf
->hw
.aq
.asq_last_status
));
6589 /* make sure our flow control settings are restored */
6590 ret
= i40e_set_fc(&pf
->hw
, &set_fc_aq_fail
, true);
6592 dev_dbg(&pf
->pdev
->dev
, "setting flow control: ret = %s last_status = %s\n",
6593 i40e_stat_str(&pf
->hw
, ret
),
6594 i40e_aq_str(&pf
->hw
, pf
->hw
.aq
.asq_last_status
));
6596 /* Rebuild the VSIs and VEBs that existed before reset.
6597 * They are still in our local switch element arrays, so only
6598 * need to rebuild the switch model in the HW.
6600 * If there were VEBs but the reconstitution failed, we'll try
6601 * try to recover minimal use by getting the basic PF VSI working.
6603 if (pf
->vsi
[pf
->lan_vsi
]->uplink_seid
!= pf
->mac_seid
) {
6604 dev_dbg(&pf
->pdev
->dev
, "attempting to rebuild switch\n");
6605 /* find the one VEB connected to the MAC, and find orphans */
6606 for (v
= 0; v
< I40E_MAX_VEB
; v
++) {
6610 if (pf
->veb
[v
]->uplink_seid
== pf
->mac_seid
||
6611 pf
->veb
[v
]->uplink_seid
== 0) {
6612 ret
= i40e_reconstitute_veb(pf
->veb
[v
]);
6617 /* If Main VEB failed, we're in deep doodoo,
6618 * so give up rebuilding the switch and set up
6619 * for minimal rebuild of PF VSI.
6620 * If orphan failed, we'll report the error
6621 * but try to keep going.
6623 if (pf
->veb
[v
]->uplink_seid
== pf
->mac_seid
) {
6624 dev_info(&pf
->pdev
->dev
,
6625 "rebuild of switch failed: %d, will try to set up simple PF connection\n",
6627 pf
->vsi
[pf
->lan_vsi
]->uplink_seid
6630 } else if (pf
->veb
[v
]->uplink_seid
== 0) {
6631 dev_info(&pf
->pdev
->dev
,
6632 "rebuild of orphan VEB failed: %d\n",
6639 if (pf
->vsi
[pf
->lan_vsi
]->uplink_seid
== pf
->mac_seid
) {
6640 dev_dbg(&pf
->pdev
->dev
, "attempting to rebuild PF VSI\n");
6641 /* no VEB, so rebuild only the Main VSI */
6642 ret
= i40e_add_vsi(pf
->vsi
[pf
->lan_vsi
]);
6644 dev_info(&pf
->pdev
->dev
,
6645 "rebuild of Main VSI failed: %d\n", ret
);
6646 goto end_core_reset
;
6650 if (((pf
->hw
.aq
.fw_maj_ver
== 4) && (pf
->hw
.aq
.fw_min_ver
< 33)) ||
6651 (pf
->hw
.aq
.fw_maj_ver
< 4)) {
6653 ret
= i40e_aq_set_link_restart_an(&pf
->hw
, true, NULL
);
6655 dev_info(&pf
->pdev
->dev
, "link restart failed, err %s aq_err %s\n",
6656 i40e_stat_str(&pf
->hw
, ret
),
6657 i40e_aq_str(&pf
->hw
,
6658 pf
->hw
.aq
.asq_last_status
));
6660 /* reinit the misc interrupt */
6661 if (pf
->flags
& I40E_FLAG_MSIX_ENABLED
)
6662 ret
= i40e_setup_misc_vector(pf
);
6664 /* restart the VSIs that were rebuilt and running before the reset */
6665 i40e_pf_unquiesce_all_vsi(pf
);
6667 if (pf
->num_alloc_vfs
) {
6668 for (v
= 0; v
< pf
->num_alloc_vfs
; v
++)
6669 i40e_reset_vf(&pf
->vf
[v
], true);
6672 /* tell the firmware that we're starting */
6673 i40e_send_version(pf
);
6676 clear_bit(__I40E_RESET_FAILED
, &pf
->state
);
6678 clear_bit(__I40E_RESET_RECOVERY_PENDING
, &pf
->state
);
6682 * i40e_handle_reset_warning - prep for the PF to reset, reset and rebuild
6683 * @pf: board private structure
6685 * Close up the VFs and other things in prep for a Core Reset,
6686 * then get ready to rebuild the world.
6688 static void i40e_handle_reset_warning(struct i40e_pf
*pf
)
6690 i40e_prep_for_reset(pf
);
6691 i40e_reset_and_rebuild(pf
, false);
6695 * i40e_handle_mdd_event
6696 * @pf: pointer to the PF structure
6698 * Called from the MDD irq handler to identify possibly malicious vfs
6700 static void i40e_handle_mdd_event(struct i40e_pf
*pf
)
6702 struct i40e_hw
*hw
= &pf
->hw
;
6703 bool mdd_detected
= false;
6704 bool pf_mdd_detected
= false;
6709 if (!test_bit(__I40E_MDD_EVENT_PENDING
, &pf
->state
))
6712 /* find what triggered the MDD event */
6713 reg
= rd32(hw
, I40E_GL_MDET_TX
);
6714 if (reg
& I40E_GL_MDET_TX_VALID_MASK
) {
6715 u8 pf_num
= (reg
& I40E_GL_MDET_TX_PF_NUM_MASK
) >>
6716 I40E_GL_MDET_TX_PF_NUM_SHIFT
;
6717 u16 vf_num
= (reg
& I40E_GL_MDET_TX_VF_NUM_MASK
) >>
6718 I40E_GL_MDET_TX_VF_NUM_SHIFT
;
6719 u8 event
= (reg
& I40E_GL_MDET_TX_EVENT_MASK
) >>
6720 I40E_GL_MDET_TX_EVENT_SHIFT
;
6721 u16 queue
= ((reg
& I40E_GL_MDET_TX_QUEUE_MASK
) >>
6722 I40E_GL_MDET_TX_QUEUE_SHIFT
) -
6723 pf
->hw
.func_caps
.base_queue
;
6724 if (netif_msg_tx_err(pf
))
6725 dev_info(&pf
->pdev
->dev
, "Malicious Driver Detection event 0x%02x on TX queue %d PF number 0x%02x VF number 0x%02x\n",
6726 event
, queue
, pf_num
, vf_num
);
6727 wr32(hw
, I40E_GL_MDET_TX
, 0xffffffff);
6728 mdd_detected
= true;
6730 reg
= rd32(hw
, I40E_GL_MDET_RX
);
6731 if (reg
& I40E_GL_MDET_RX_VALID_MASK
) {
6732 u8 func
= (reg
& I40E_GL_MDET_RX_FUNCTION_MASK
) >>
6733 I40E_GL_MDET_RX_FUNCTION_SHIFT
;
6734 u8 event
= (reg
& I40E_GL_MDET_RX_EVENT_MASK
) >>
6735 I40E_GL_MDET_RX_EVENT_SHIFT
;
6736 u16 queue
= ((reg
& I40E_GL_MDET_RX_QUEUE_MASK
) >>
6737 I40E_GL_MDET_RX_QUEUE_SHIFT
) -
6738 pf
->hw
.func_caps
.base_queue
;
6739 if (netif_msg_rx_err(pf
))
6740 dev_info(&pf
->pdev
->dev
, "Malicious Driver Detection event 0x%02x on RX queue %d of function 0x%02x\n",
6741 event
, queue
, func
);
6742 wr32(hw
, I40E_GL_MDET_RX
, 0xffffffff);
6743 mdd_detected
= true;
6747 reg
= rd32(hw
, I40E_PF_MDET_TX
);
6748 if (reg
& I40E_PF_MDET_TX_VALID_MASK
) {
6749 wr32(hw
, I40E_PF_MDET_TX
, 0xFFFF);
6750 dev_info(&pf
->pdev
->dev
, "TX driver issue detected, PF reset issued\n");
6751 pf_mdd_detected
= true;
6753 reg
= rd32(hw
, I40E_PF_MDET_RX
);
6754 if (reg
& I40E_PF_MDET_RX_VALID_MASK
) {
6755 wr32(hw
, I40E_PF_MDET_RX
, 0xFFFF);
6756 dev_info(&pf
->pdev
->dev
, "RX driver issue detected, PF reset issued\n");
6757 pf_mdd_detected
= true;
6759 /* Queue belongs to the PF, initiate a reset */
6760 if (pf_mdd_detected
) {
6761 set_bit(__I40E_PF_RESET_REQUESTED
, &pf
->state
);
6762 i40e_service_event_schedule(pf
);
6766 /* see if one of the VFs needs its hand slapped */
6767 for (i
= 0; i
< pf
->num_alloc_vfs
&& mdd_detected
; i
++) {
6769 reg
= rd32(hw
, I40E_VP_MDET_TX(i
));
6770 if (reg
& I40E_VP_MDET_TX_VALID_MASK
) {
6771 wr32(hw
, I40E_VP_MDET_TX(i
), 0xFFFF);
6772 vf
->num_mdd_events
++;
6773 dev_info(&pf
->pdev
->dev
, "TX driver issue detected on VF %d\n",
6777 reg
= rd32(hw
, I40E_VP_MDET_RX(i
));
6778 if (reg
& I40E_VP_MDET_RX_VALID_MASK
) {
6779 wr32(hw
, I40E_VP_MDET_RX(i
), 0xFFFF);
6780 vf
->num_mdd_events
++;
6781 dev_info(&pf
->pdev
->dev
, "RX driver issue detected on VF %d\n",
6785 if (vf
->num_mdd_events
> I40E_DEFAULT_NUM_MDD_EVENTS_ALLOWED
) {
6786 dev_info(&pf
->pdev
->dev
,
6787 "Too many MDD events on VF %d, disabled\n", i
);
6788 dev_info(&pf
->pdev
->dev
,
6789 "Use PF Control I/F to re-enable the VF\n");
6790 set_bit(I40E_VF_STAT_DISABLED
, &vf
->vf_states
);
6794 /* re-enable mdd interrupt cause */
6795 clear_bit(__I40E_MDD_EVENT_PENDING
, &pf
->state
);
6796 reg
= rd32(hw
, I40E_PFINT_ICR0_ENA
);
6797 reg
|= I40E_PFINT_ICR0_ENA_MAL_DETECT_MASK
;
6798 wr32(hw
, I40E_PFINT_ICR0_ENA
, reg
);
6802 #ifdef CONFIG_I40E_VXLAN
6804 * i40e_sync_vxlan_filters_subtask - Sync the VSI filter list with HW
6805 * @pf: board private structure
6807 static void i40e_sync_vxlan_filters_subtask(struct i40e_pf
*pf
)
6809 struct i40e_hw
*hw
= &pf
->hw
;
6814 if (!(pf
->flags
& I40E_FLAG_VXLAN_FILTER_SYNC
))
6817 pf
->flags
&= ~I40E_FLAG_VXLAN_FILTER_SYNC
;
6819 for (i
= 0; i
< I40E_MAX_PF_UDP_OFFLOAD_PORTS
; i
++) {
6820 if (pf
->pending_vxlan_bitmap
& BIT_ULL(i
)) {
6821 pf
->pending_vxlan_bitmap
&= ~BIT_ULL(i
);
6822 port
= pf
->vxlan_ports
[i
];
6824 ret
= i40e_aq_add_udp_tunnel(hw
, ntohs(port
),
6825 I40E_AQC_TUNNEL_TYPE_VXLAN
,
6828 ret
= i40e_aq_del_udp_tunnel(hw
, i
, NULL
);
6831 dev_info(&pf
->pdev
->dev
,
6832 "%s vxlan port %d, index %d failed, err %s aq_err %s\n",
6833 port
? "add" : "delete",
6835 i40e_stat_str(&pf
->hw
, ret
),
6836 i40e_aq_str(&pf
->hw
,
6837 pf
->hw
.aq
.asq_last_status
));
6838 pf
->vxlan_ports
[i
] = 0;
6846 * i40e_service_task - Run the driver's async subtasks
6847 * @work: pointer to work_struct containing our data
6849 static void i40e_service_task(struct work_struct
*work
)
6851 struct i40e_pf
*pf
= container_of(work
,
6854 unsigned long start_time
= jiffies
;
6856 /* don't bother with service tasks if a reset is in progress */
6857 if (test_bit(__I40E_RESET_RECOVERY_PENDING
, &pf
->state
)) {
6858 i40e_service_event_complete(pf
);
6862 i40e_detect_recover_hung(pf
);
6863 i40e_reset_subtask(pf
);
6864 i40e_handle_mdd_event(pf
);
6865 i40e_vc_process_vflr_event(pf
);
6866 i40e_watchdog_subtask(pf
);
6867 i40e_fdir_reinit_subtask(pf
);
6868 i40e_sync_filters_subtask(pf
);
6869 #ifdef CONFIG_I40E_VXLAN
6870 i40e_sync_vxlan_filters_subtask(pf
);
6872 i40e_clean_adminq_subtask(pf
);
6874 i40e_service_event_complete(pf
);
6876 /* If the tasks have taken longer than one timer cycle or there
6877 * is more work to be done, reschedule the service task now
6878 * rather than wait for the timer to tick again.
6880 if (time_after(jiffies
, (start_time
+ pf
->service_timer_period
)) ||
6881 test_bit(__I40E_ADMINQ_EVENT_PENDING
, &pf
->state
) ||
6882 test_bit(__I40E_MDD_EVENT_PENDING
, &pf
->state
) ||
6883 test_bit(__I40E_VFLR_EVENT_PENDING
, &pf
->state
))
6884 i40e_service_event_schedule(pf
);
6888 * i40e_service_timer - timer callback
6889 * @data: pointer to PF struct
6891 static void i40e_service_timer(unsigned long data
)
6893 struct i40e_pf
*pf
= (struct i40e_pf
*)data
;
6895 mod_timer(&pf
->service_timer
,
6896 round_jiffies(jiffies
+ pf
->service_timer_period
));
6897 i40e_service_event_schedule(pf
);
6901 * i40e_set_num_rings_in_vsi - Determine number of rings in the VSI
6902 * @vsi: the VSI being configured
6904 static int i40e_set_num_rings_in_vsi(struct i40e_vsi
*vsi
)
6906 struct i40e_pf
*pf
= vsi
->back
;
6908 switch (vsi
->type
) {
6910 vsi
->alloc_queue_pairs
= pf
->num_lan_qps
;
6911 vsi
->num_desc
= ALIGN(I40E_DEFAULT_NUM_DESCRIPTORS
,
6912 I40E_REQ_DESCRIPTOR_MULTIPLE
);
6913 if (pf
->flags
& I40E_FLAG_MSIX_ENABLED
)
6914 vsi
->num_q_vectors
= pf
->num_lan_msix
;
6916 vsi
->num_q_vectors
= 1;
6921 vsi
->alloc_queue_pairs
= 1;
6922 vsi
->num_desc
= ALIGN(I40E_FDIR_RING_COUNT
,
6923 I40E_REQ_DESCRIPTOR_MULTIPLE
);
6924 vsi
->num_q_vectors
= 1;
6927 case I40E_VSI_VMDQ2
:
6928 vsi
->alloc_queue_pairs
= pf
->num_vmdq_qps
;
6929 vsi
->num_desc
= ALIGN(I40E_DEFAULT_NUM_DESCRIPTORS
,
6930 I40E_REQ_DESCRIPTOR_MULTIPLE
);
6931 vsi
->num_q_vectors
= pf
->num_vmdq_msix
;
6934 case I40E_VSI_SRIOV
:
6935 vsi
->alloc_queue_pairs
= pf
->num_vf_qps
;
6936 vsi
->num_desc
= ALIGN(I40E_DEFAULT_NUM_DESCRIPTORS
,
6937 I40E_REQ_DESCRIPTOR_MULTIPLE
);
6942 vsi
->alloc_queue_pairs
= pf
->num_fcoe_qps
;
6943 vsi
->num_desc
= ALIGN(I40E_DEFAULT_NUM_DESCRIPTORS
,
6944 I40E_REQ_DESCRIPTOR_MULTIPLE
);
6945 vsi
->num_q_vectors
= pf
->num_fcoe_msix
;
6948 #endif /* I40E_FCOE */
6958 * i40e_vsi_alloc_arrays - Allocate queue and vector pointer arrays for the vsi
6959 * @type: VSI pointer
6960 * @alloc_qvectors: a bool to specify if q_vectors need to be allocated.
6962 * On error: returns error code (negative)
6963 * On success: returns 0
6965 static int i40e_vsi_alloc_arrays(struct i40e_vsi
*vsi
, bool alloc_qvectors
)
6970 /* allocate memory for both Tx and Rx ring pointers */
6971 size
= sizeof(struct i40e_ring
*) * vsi
->alloc_queue_pairs
* 2;
6972 vsi
->tx_rings
= kzalloc(size
, GFP_KERNEL
);
6975 vsi
->rx_rings
= &vsi
->tx_rings
[vsi
->alloc_queue_pairs
];
6977 if (alloc_qvectors
) {
6978 /* allocate memory for q_vector pointers */
6979 size
= sizeof(struct i40e_q_vector
*) * vsi
->num_q_vectors
;
6980 vsi
->q_vectors
= kzalloc(size
, GFP_KERNEL
);
6981 if (!vsi
->q_vectors
) {
6989 kfree(vsi
->tx_rings
);
6994 * i40e_vsi_mem_alloc - Allocates the next available struct vsi in the PF
6995 * @pf: board private structure
6996 * @type: type of VSI
6998 * On error: returns error code (negative)
6999 * On success: returns vsi index in PF (positive)
7001 static int i40e_vsi_mem_alloc(struct i40e_pf
*pf
, enum i40e_vsi_type type
)
7004 struct i40e_vsi
*vsi
;
7008 /* Need to protect the allocation of the VSIs at the PF level */
7009 mutex_lock(&pf
->switch_mutex
);
7011 /* VSI list may be fragmented if VSI creation/destruction has
7012 * been happening. We can afford to do a quick scan to look
7013 * for any free VSIs in the list.
7015 * find next empty vsi slot, looping back around if necessary
7018 while (i
< pf
->num_alloc_vsi
&& pf
->vsi
[i
])
7020 if (i
>= pf
->num_alloc_vsi
) {
7022 while (i
< pf
->next_vsi
&& pf
->vsi
[i
])
7026 if (i
< pf
->num_alloc_vsi
&& !pf
->vsi
[i
]) {
7027 vsi_idx
= i
; /* Found one! */
7030 goto unlock_pf
; /* out of VSI slots! */
7034 vsi
= kzalloc(sizeof(*vsi
), GFP_KERNEL
);
7041 set_bit(__I40E_DOWN
, &vsi
->state
);
7044 vsi
->rx_itr_setting
= pf
->rx_itr_default
;
7045 vsi
->tx_itr_setting
= pf
->tx_itr_default
;
7046 vsi
->int_rate_limit
= 0;
7047 vsi
->rss_table_size
= (vsi
->type
== I40E_VSI_MAIN
) ?
7048 pf
->rss_table_size
: 64;
7049 vsi
->netdev_registered
= false;
7050 vsi
->work_limit
= I40E_DEFAULT_IRQ_WORK
;
7051 INIT_LIST_HEAD(&vsi
->mac_filter_list
);
7052 vsi
->irqs_ready
= false;
7054 ret
= i40e_set_num_rings_in_vsi(vsi
);
7058 ret
= i40e_vsi_alloc_arrays(vsi
, true);
7062 /* Setup default MSIX irq handler for VSI */
7063 i40e_vsi_setup_irqhandler(vsi
, i40e_msix_clean_rings
);
7065 pf
->vsi
[vsi_idx
] = vsi
;
7070 pf
->next_vsi
= i
- 1;
7073 mutex_unlock(&pf
->switch_mutex
);
7078 * i40e_vsi_free_arrays - Free queue and vector pointer arrays for the VSI
7079 * @type: VSI pointer
7080 * @free_qvectors: a bool to specify if q_vectors need to be freed.
7082 * On error: returns error code (negative)
7083 * On success: returns 0
7085 static void i40e_vsi_free_arrays(struct i40e_vsi
*vsi
, bool free_qvectors
)
7087 /* free the ring and vector containers */
7088 if (free_qvectors
) {
7089 kfree(vsi
->q_vectors
);
7090 vsi
->q_vectors
= NULL
;
7092 kfree(vsi
->tx_rings
);
7093 vsi
->tx_rings
= NULL
;
7094 vsi
->rx_rings
= NULL
;
7098 * i40e_vsi_clear - Deallocate the VSI provided
7099 * @vsi: the VSI being un-configured
7101 static int i40e_vsi_clear(struct i40e_vsi
*vsi
)
7112 mutex_lock(&pf
->switch_mutex
);
7113 if (!pf
->vsi
[vsi
->idx
]) {
7114 dev_err(&pf
->pdev
->dev
, "pf->vsi[%d] is NULL, just free vsi[%d](%p,type %d)\n",
7115 vsi
->idx
, vsi
->idx
, vsi
, vsi
->type
);
7119 if (pf
->vsi
[vsi
->idx
] != vsi
) {
7120 dev_err(&pf
->pdev
->dev
,
7121 "pf->vsi[%d](%p, type %d) != vsi[%d](%p,type %d): no free!\n",
7122 pf
->vsi
[vsi
->idx
]->idx
,
7124 pf
->vsi
[vsi
->idx
]->type
,
7125 vsi
->idx
, vsi
, vsi
->type
);
7129 /* updates the PF for this cleared vsi */
7130 i40e_put_lump(pf
->qp_pile
, vsi
->base_queue
, vsi
->idx
);
7131 i40e_put_lump(pf
->irq_pile
, vsi
->base_vector
, vsi
->idx
);
7133 i40e_vsi_free_arrays(vsi
, true);
7135 pf
->vsi
[vsi
->idx
] = NULL
;
7136 if (vsi
->idx
< pf
->next_vsi
)
7137 pf
->next_vsi
= vsi
->idx
;
7140 mutex_unlock(&pf
->switch_mutex
);
7148 * i40e_vsi_clear_rings - Deallocates the Rx and Tx rings for the provided VSI
7149 * @vsi: the VSI being cleaned
7151 static void i40e_vsi_clear_rings(struct i40e_vsi
*vsi
)
7155 if (vsi
->tx_rings
&& vsi
->tx_rings
[0]) {
7156 for (i
= 0; i
< vsi
->alloc_queue_pairs
; i
++) {
7157 kfree_rcu(vsi
->tx_rings
[i
], rcu
);
7158 vsi
->tx_rings
[i
] = NULL
;
7159 vsi
->rx_rings
[i
] = NULL
;
7165 * i40e_alloc_rings - Allocates the Rx and Tx rings for the provided VSI
7166 * @vsi: the VSI being configured
7168 static int i40e_alloc_rings(struct i40e_vsi
*vsi
)
7170 struct i40e_ring
*tx_ring
, *rx_ring
;
7171 struct i40e_pf
*pf
= vsi
->back
;
7174 /* Set basic values in the rings to be used later during open() */
7175 for (i
= 0; i
< vsi
->alloc_queue_pairs
; i
++) {
7176 /* allocate space for both Tx and Rx in one shot */
7177 tx_ring
= kzalloc(sizeof(struct i40e_ring
) * 2, GFP_KERNEL
);
7181 tx_ring
->queue_index
= i
;
7182 tx_ring
->reg_idx
= vsi
->base_queue
+ i
;
7183 tx_ring
->ring_active
= false;
7185 tx_ring
->netdev
= vsi
->netdev
;
7186 tx_ring
->dev
= &pf
->pdev
->dev
;
7187 tx_ring
->count
= vsi
->num_desc
;
7189 tx_ring
->dcb_tc
= 0;
7190 if (vsi
->back
->flags
& I40E_FLAG_WB_ON_ITR_CAPABLE
)
7191 tx_ring
->flags
= I40E_TXR_FLAGS_WB_ON_ITR
;
7192 if (vsi
->back
->flags
& I40E_FLAG_OUTER_UDP_CSUM_CAPABLE
)
7193 tx_ring
->flags
|= I40E_TXR_FLAGS_OUTER_UDP_CSUM
;
7194 vsi
->tx_rings
[i
] = tx_ring
;
7196 rx_ring
= &tx_ring
[1];
7197 rx_ring
->queue_index
= i
;
7198 rx_ring
->reg_idx
= vsi
->base_queue
+ i
;
7199 rx_ring
->ring_active
= false;
7201 rx_ring
->netdev
= vsi
->netdev
;
7202 rx_ring
->dev
= &pf
->pdev
->dev
;
7203 rx_ring
->count
= vsi
->num_desc
;
7205 rx_ring
->dcb_tc
= 0;
7206 if (pf
->flags
& I40E_FLAG_16BYTE_RX_DESC_ENABLED
)
7207 set_ring_16byte_desc_enabled(rx_ring
);
7209 clear_ring_16byte_desc_enabled(rx_ring
);
7210 vsi
->rx_rings
[i
] = rx_ring
;
7216 i40e_vsi_clear_rings(vsi
);
7221 * i40e_reserve_msix_vectors - Reserve MSI-X vectors in the kernel
7222 * @pf: board private structure
7223 * @vectors: the number of MSI-X vectors to request
7225 * Returns the number of vectors reserved, or error
7227 static int i40e_reserve_msix_vectors(struct i40e_pf
*pf
, int vectors
)
7229 vectors
= pci_enable_msix_range(pf
->pdev
, pf
->msix_entries
,
7230 I40E_MIN_MSIX
, vectors
);
7232 dev_info(&pf
->pdev
->dev
,
7233 "MSI-X vector reservation failed: %d\n", vectors
);
7241 * i40e_init_msix - Setup the MSIX capability
7242 * @pf: board private structure
7244 * Work with the OS to set up the MSIX vectors needed.
7246 * Returns the number of vectors reserved or negative on failure
7248 static int i40e_init_msix(struct i40e_pf
*pf
)
7250 struct i40e_hw
*hw
= &pf
->hw
;
7255 if (!(pf
->flags
& I40E_FLAG_MSIX_ENABLED
))
7258 /* The number of vectors we'll request will be comprised of:
7259 * - Add 1 for "other" cause for Admin Queue events, etc.
7260 * - The number of LAN queue pairs
7261 * - Queues being used for RSS.
7262 * We don't need as many as max_rss_size vectors.
7263 * use rss_size instead in the calculation since that
7264 * is governed by number of cpus in the system.
7265 * - assumes symmetric Tx/Rx pairing
7266 * - The number of VMDq pairs
7268 * - The number of FCOE qps.
7270 * Once we count this up, try the request.
7272 * If we can't get what we want, we'll simplify to nearly nothing
7273 * and try again. If that still fails, we punt.
7275 vectors_left
= hw
->func_caps
.num_msix_vectors
;
7278 /* reserve one vector for miscellaneous handler */
7284 /* reserve vectors for the main PF traffic queues */
7285 pf
->num_lan_msix
= min_t(int, num_online_cpus(), vectors_left
);
7286 vectors_left
-= pf
->num_lan_msix
;
7287 v_budget
+= pf
->num_lan_msix
;
7289 /* reserve one vector for sideband flow director */
7290 if (pf
->flags
& I40E_FLAG_FD_SB_ENABLED
) {
7295 pf
->flags
&= ~I40E_FLAG_FD_SB_ENABLED
;
7300 /* can we reserve enough for FCoE? */
7301 if (pf
->flags
& I40E_FLAG_FCOE_ENABLED
) {
7303 pf
->num_fcoe_msix
= 0;
7304 else if (vectors_left
>= pf
->num_fcoe_qps
)
7305 pf
->num_fcoe_msix
= pf
->num_fcoe_qps
;
7307 pf
->num_fcoe_msix
= 1;
7308 v_budget
+= pf
->num_fcoe_msix
;
7309 vectors_left
-= pf
->num_fcoe_msix
;
7313 /* any vectors left over go for VMDq support */
7314 if (pf
->flags
& I40E_FLAG_VMDQ_ENABLED
) {
7315 int vmdq_vecs_wanted
= pf
->num_vmdq_vsis
* pf
->num_vmdq_qps
;
7316 int vmdq_vecs
= min_t(int, vectors_left
, vmdq_vecs_wanted
);
7318 /* if we're short on vectors for what's desired, we limit
7319 * the queues per vmdq. If this is still more than are
7320 * available, the user will need to change the number of
7321 * queues/vectors used by the PF later with the ethtool
7324 if (vmdq_vecs
< vmdq_vecs_wanted
)
7325 pf
->num_vmdq_qps
= 1;
7326 pf
->num_vmdq_msix
= pf
->num_vmdq_qps
;
7328 v_budget
+= vmdq_vecs
;
7329 vectors_left
-= vmdq_vecs
;
7332 pf
->msix_entries
= kcalloc(v_budget
, sizeof(struct msix_entry
),
7334 if (!pf
->msix_entries
)
7337 for (i
= 0; i
< v_budget
; i
++)
7338 pf
->msix_entries
[i
].entry
= i
;
7339 v_actual
= i40e_reserve_msix_vectors(pf
, v_budget
);
7341 if (v_actual
!= v_budget
) {
7342 /* If we have limited resources, we will start with no vectors
7343 * for the special features and then allocate vectors to some
7344 * of these features based on the policy and at the end disable
7345 * the features that did not get any vectors.
7348 pf
->num_fcoe_qps
= 0;
7349 pf
->num_fcoe_msix
= 0;
7351 pf
->num_vmdq_msix
= 0;
7354 if (v_actual
< I40E_MIN_MSIX
) {
7355 pf
->flags
&= ~I40E_FLAG_MSIX_ENABLED
;
7356 kfree(pf
->msix_entries
);
7357 pf
->msix_entries
= NULL
;
7360 } else if (v_actual
== I40E_MIN_MSIX
) {
7361 /* Adjust for minimal MSIX use */
7362 pf
->num_vmdq_vsis
= 0;
7363 pf
->num_vmdq_qps
= 0;
7364 pf
->num_lan_qps
= 1;
7365 pf
->num_lan_msix
= 1;
7367 } else if (v_actual
!= v_budget
) {
7370 /* reserve the misc vector */
7373 /* Scale vector usage down */
7374 pf
->num_vmdq_msix
= 1; /* force VMDqs to only one vector */
7375 pf
->num_vmdq_vsis
= 1;
7376 pf
->num_vmdq_qps
= 1;
7377 pf
->flags
&= ~I40E_FLAG_FD_SB_ENABLED
;
7379 /* partition out the remaining vectors */
7382 pf
->num_lan_msix
= 1;
7386 /* give one vector to FCoE */
7387 if (pf
->flags
& I40E_FLAG_FCOE_ENABLED
) {
7388 pf
->num_lan_msix
= 1;
7389 pf
->num_fcoe_msix
= 1;
7392 pf
->num_lan_msix
= 2;
7397 /* give one vector to FCoE */
7398 if (pf
->flags
& I40E_FLAG_FCOE_ENABLED
) {
7399 pf
->num_fcoe_msix
= 1;
7403 /* give the rest to the PF */
7404 pf
->num_lan_msix
= min_t(int, vec
, pf
->num_lan_qps
);
7409 if ((pf
->flags
& I40E_FLAG_VMDQ_ENABLED
) &&
7410 (pf
->num_vmdq_msix
== 0)) {
7411 dev_info(&pf
->pdev
->dev
, "VMDq disabled, not enough MSI-X vectors\n");
7412 pf
->flags
&= ~I40E_FLAG_VMDQ_ENABLED
;
7416 if ((pf
->flags
& I40E_FLAG_FCOE_ENABLED
) && (pf
->num_fcoe_msix
== 0)) {
7417 dev_info(&pf
->pdev
->dev
, "FCOE disabled, not enough MSI-X vectors\n");
7418 pf
->flags
&= ~I40E_FLAG_FCOE_ENABLED
;
7425 * i40e_vsi_alloc_q_vector - Allocate memory for a single interrupt vector
7426 * @vsi: the VSI being configured
7427 * @v_idx: index of the vector in the vsi struct
7429 * We allocate one q_vector. If allocation fails we return -ENOMEM.
7431 static int i40e_vsi_alloc_q_vector(struct i40e_vsi
*vsi
, int v_idx
)
7433 struct i40e_q_vector
*q_vector
;
7435 /* allocate q_vector */
7436 q_vector
= kzalloc(sizeof(struct i40e_q_vector
), GFP_KERNEL
);
7440 q_vector
->vsi
= vsi
;
7441 q_vector
->v_idx
= v_idx
;
7442 cpumask_set_cpu(v_idx
, &q_vector
->affinity_mask
);
7444 netif_napi_add(vsi
->netdev
, &q_vector
->napi
,
7445 i40e_napi_poll
, NAPI_POLL_WEIGHT
);
7447 q_vector
->rx
.latency_range
= I40E_LOW_LATENCY
;
7448 q_vector
->tx
.latency_range
= I40E_LOW_LATENCY
;
7450 /* tie q_vector and vsi together */
7451 vsi
->q_vectors
[v_idx
] = q_vector
;
7457 * i40e_vsi_alloc_q_vectors - Allocate memory for interrupt vectors
7458 * @vsi: the VSI being configured
7460 * We allocate one q_vector per queue interrupt. If allocation fails we
7463 static int i40e_vsi_alloc_q_vectors(struct i40e_vsi
*vsi
)
7465 struct i40e_pf
*pf
= vsi
->back
;
7466 int v_idx
, num_q_vectors
;
7469 /* if not MSIX, give the one vector only to the LAN VSI */
7470 if (pf
->flags
& I40E_FLAG_MSIX_ENABLED
)
7471 num_q_vectors
= vsi
->num_q_vectors
;
7472 else if (vsi
== pf
->vsi
[pf
->lan_vsi
])
7477 for (v_idx
= 0; v_idx
< num_q_vectors
; v_idx
++) {
7478 err
= i40e_vsi_alloc_q_vector(vsi
, v_idx
);
7487 i40e_free_q_vector(vsi
, v_idx
);
7493 * i40e_init_interrupt_scheme - Determine proper interrupt scheme
7494 * @pf: board private structure to initialize
7496 static int i40e_init_interrupt_scheme(struct i40e_pf
*pf
)
7501 if (pf
->flags
& I40E_FLAG_MSIX_ENABLED
) {
7502 vectors
= i40e_init_msix(pf
);
7504 pf
->flags
&= ~(I40E_FLAG_MSIX_ENABLED
|
7506 I40E_FLAG_FCOE_ENABLED
|
7508 I40E_FLAG_RSS_ENABLED
|
7509 I40E_FLAG_DCB_CAPABLE
|
7510 I40E_FLAG_SRIOV_ENABLED
|
7511 I40E_FLAG_FD_SB_ENABLED
|
7512 I40E_FLAG_FD_ATR_ENABLED
|
7513 I40E_FLAG_VMDQ_ENABLED
);
7515 /* rework the queue expectations without MSIX */
7516 i40e_determine_queue_usage(pf
);
7520 if (!(pf
->flags
& I40E_FLAG_MSIX_ENABLED
) &&
7521 (pf
->flags
& I40E_FLAG_MSI_ENABLED
)) {
7522 dev_info(&pf
->pdev
->dev
, "MSI-X not available, trying MSI\n");
7523 vectors
= pci_enable_msi(pf
->pdev
);
7525 dev_info(&pf
->pdev
->dev
, "MSI init failed - %d\n",
7527 pf
->flags
&= ~I40E_FLAG_MSI_ENABLED
;
7529 vectors
= 1; /* one MSI or Legacy vector */
7532 if (!(pf
->flags
& (I40E_FLAG_MSIX_ENABLED
| I40E_FLAG_MSI_ENABLED
)))
7533 dev_info(&pf
->pdev
->dev
, "MSI-X and MSI not available, falling back to Legacy IRQ\n");
7535 /* set up vector assignment tracking */
7536 size
= sizeof(struct i40e_lump_tracking
) + (sizeof(u16
) * vectors
);
7537 pf
->irq_pile
= kzalloc(size
, GFP_KERNEL
);
7538 if (!pf
->irq_pile
) {
7539 dev_err(&pf
->pdev
->dev
, "error allocating irq_pile memory\n");
7542 pf
->irq_pile
->num_entries
= vectors
;
7543 pf
->irq_pile
->search_hint
= 0;
7545 /* track first vector for misc interrupts, ignore return */
7546 (void)i40e_get_lump(pf
, pf
->irq_pile
, 1, I40E_PILE_VALID_BIT
- 1);
7552 * i40e_setup_misc_vector - Setup the misc vector to handle non queue events
7553 * @pf: board private structure
7555 * This sets up the handler for MSIX 0, which is used to manage the
7556 * non-queue interrupts, e.g. AdminQ and errors. This is not used
7557 * when in MSI or Legacy interrupt mode.
7559 static int i40e_setup_misc_vector(struct i40e_pf
*pf
)
7561 struct i40e_hw
*hw
= &pf
->hw
;
7564 /* Only request the irq if this is the first time through, and
7565 * not when we're rebuilding after a Reset
7567 if (!test_bit(__I40E_RESET_RECOVERY_PENDING
, &pf
->state
)) {
7568 err
= request_irq(pf
->msix_entries
[0].vector
,
7569 i40e_intr
, 0, pf
->int_name
, pf
);
7571 dev_info(&pf
->pdev
->dev
,
7572 "request_irq for %s failed: %d\n",
7578 i40e_enable_misc_int_causes(pf
);
7580 /* associate no queues to the misc vector */
7581 wr32(hw
, I40E_PFINT_LNKLST0
, I40E_QUEUE_END_OF_LIST
);
7582 wr32(hw
, I40E_PFINT_ITR0(I40E_RX_ITR
), I40E_ITR_8K
);
7586 i40e_irq_dynamic_enable_icr0(pf
);
7592 * i40e_config_rss_aq - Prepare for RSS using AQ commands
7593 * @vsi: vsi structure
7594 * @seed: RSS hash seed
7596 static int i40e_config_rss_aq(struct i40e_vsi
*vsi
, const u8
*seed
)
7598 struct i40e_aqc_get_set_rss_key_data rss_key
;
7599 struct i40e_pf
*pf
= vsi
->back
;
7600 struct i40e_hw
*hw
= &pf
->hw
;
7601 bool pf_lut
= false;
7605 memset(&rss_key
, 0, sizeof(rss_key
));
7606 memcpy(&rss_key
, seed
, sizeof(rss_key
));
7608 rss_lut
= kzalloc(pf
->rss_table_size
, GFP_KERNEL
);
7612 /* Populate the LUT with max no. of queues in round robin fashion */
7613 for (i
= 0; i
< vsi
->rss_table_size
; i
++)
7614 rss_lut
[i
] = i
% vsi
->rss_size
;
7616 ret
= i40e_aq_set_rss_key(hw
, vsi
->id
, &rss_key
);
7618 dev_info(&pf
->pdev
->dev
,
7619 "Cannot set RSS key, err %s aq_err %s\n",
7620 i40e_stat_str(&pf
->hw
, ret
),
7621 i40e_aq_str(&pf
->hw
, pf
->hw
.aq
.asq_last_status
));
7622 goto config_rss_aq_out
;
7625 if (vsi
->type
== I40E_VSI_MAIN
)
7628 ret
= i40e_aq_set_rss_lut(hw
, vsi
->id
, pf_lut
, rss_lut
,
7629 vsi
->rss_table_size
);
7631 dev_info(&pf
->pdev
->dev
,
7632 "Cannot set RSS lut, err %s aq_err %s\n",
7633 i40e_stat_str(&pf
->hw
, ret
),
7634 i40e_aq_str(&pf
->hw
, pf
->hw
.aq
.asq_last_status
));
7642 * i40e_vsi_config_rss - Prepare for VSI(VMDq) RSS if used
7643 * @vsi: VSI structure
7645 static int i40e_vsi_config_rss(struct i40e_vsi
*vsi
)
7647 u8 seed
[I40E_HKEY_ARRAY_SIZE
];
7648 struct i40e_pf
*pf
= vsi
->back
;
7650 netdev_rss_key_fill((void *)seed
, I40E_HKEY_ARRAY_SIZE
);
7651 vsi
->rss_size
= min_t(int, pf
->rss_size
, vsi
->num_queue_pairs
);
7653 if (pf
->flags
& I40E_FLAG_RSS_AQ_CAPABLE
)
7654 return i40e_config_rss_aq(vsi
, seed
);
7660 * i40e_config_rss_reg - Prepare for RSS if used
7661 * @pf: board private structure
7662 * @seed: RSS hash seed
7664 static int i40e_config_rss_reg(struct i40e_pf
*pf
, const u8
*seed
)
7666 struct i40e_vsi
*vsi
= pf
->vsi
[pf
->lan_vsi
];
7667 struct i40e_hw
*hw
= &pf
->hw
;
7668 u32
*seed_dw
= (u32
*)seed
;
7669 u32 current_queue
= 0;
7673 /* Fill out hash function seed */
7674 for (i
= 0; i
<= I40E_PFQF_HKEY_MAX_INDEX
; i
++)
7675 wr32(hw
, I40E_PFQF_HKEY(i
), seed_dw
[i
]);
7677 for (i
= 0; i
<= I40E_PFQF_HLUT_MAX_INDEX
; i
++) {
7679 for (j
= 0; j
< 4; j
++) {
7680 if (current_queue
== vsi
->rss_size
)
7682 lut
|= ((current_queue
) << (8 * j
));
7685 wr32(&pf
->hw
, I40E_PFQF_HLUT(i
), lut
);
7693 * i40e_config_rss - Prepare for RSS if used
7694 * @pf: board private structure
7696 static int i40e_config_rss(struct i40e_pf
*pf
)
7698 struct i40e_vsi
*vsi
= pf
->vsi
[pf
->lan_vsi
];
7699 u8 seed
[I40E_HKEY_ARRAY_SIZE
];
7700 struct i40e_hw
*hw
= &pf
->hw
;
7704 netdev_rss_key_fill((void *)seed
, I40E_HKEY_ARRAY_SIZE
);
7706 /* By default we enable TCP/UDP with IPv4/IPv6 ptypes */
7707 hena
= (u64
)rd32(hw
, I40E_PFQF_HENA(0)) |
7708 ((u64
)rd32(hw
, I40E_PFQF_HENA(1)) << 32);
7709 hena
|= i40e_pf_get_default_rss_hena(pf
);
7711 wr32(hw
, I40E_PFQF_HENA(0), (u32
)hena
);
7712 wr32(hw
, I40E_PFQF_HENA(1), (u32
)(hena
>> 32));
7714 vsi
->rss_size
= min_t(int, pf
->rss_size
, vsi
->num_queue_pairs
);
7716 /* Determine the RSS table size based on the hardware capabilities */
7717 reg_val
= rd32(hw
, I40E_PFQF_CTL_0
);
7718 reg_val
= (pf
->rss_table_size
== 512) ?
7719 (reg_val
| I40E_PFQF_CTL_0_HASHLUTSIZE_512
) :
7720 (reg_val
& ~I40E_PFQF_CTL_0_HASHLUTSIZE_512
);
7721 wr32(hw
, I40E_PFQF_CTL_0
, reg_val
);
7723 if (pf
->flags
& I40E_FLAG_RSS_AQ_CAPABLE
)
7724 return i40e_config_rss_aq(pf
->vsi
[pf
->lan_vsi
], seed
);
7726 return i40e_config_rss_reg(pf
, seed
);
7730 * i40e_reconfig_rss_queues - change number of queues for rss and rebuild
7731 * @pf: board private structure
7732 * @queue_count: the requested queue count for rss.
7734 * returns 0 if rss is not enabled, if enabled returns the final rss queue
7735 * count which may be different from the requested queue count.
7737 int i40e_reconfig_rss_queues(struct i40e_pf
*pf
, int queue_count
)
7739 struct i40e_vsi
*vsi
= pf
->vsi
[pf
->lan_vsi
];
7742 if (!(pf
->flags
& I40E_FLAG_RSS_ENABLED
))
7745 new_rss_size
= min_t(int, queue_count
, pf
->rss_size_max
);
7747 if (queue_count
!= vsi
->num_queue_pairs
) {
7748 vsi
->req_queue_pairs
= queue_count
;
7749 i40e_prep_for_reset(pf
);
7751 pf
->rss_size
= new_rss_size
;
7753 i40e_reset_and_rebuild(pf
, true);
7754 i40e_config_rss(pf
);
7756 dev_info(&pf
->pdev
->dev
, "RSS count: %d\n", pf
->rss_size
);
7757 return pf
->rss_size
;
7761 * i40e_get_npar_bw_setting - Retrieve BW settings for this PF partition
7762 * @pf: board private structure
7764 i40e_status
i40e_get_npar_bw_setting(struct i40e_pf
*pf
)
7767 bool min_valid
, max_valid
;
7770 status
= i40e_read_bw_from_alt_ram(&pf
->hw
, &max_bw
, &min_bw
,
7771 &min_valid
, &max_valid
);
7775 pf
->npar_min_bw
= min_bw
;
7777 pf
->npar_max_bw
= max_bw
;
7784 * i40e_set_npar_bw_setting - Set BW settings for this PF partition
7785 * @pf: board private structure
7787 i40e_status
i40e_set_npar_bw_setting(struct i40e_pf
*pf
)
7789 struct i40e_aqc_configure_partition_bw_data bw_data
;
7792 /* Set the valid bit for this PF */
7793 bw_data
.pf_valid_bits
= cpu_to_le16(BIT(pf
->hw
.pf_id
));
7794 bw_data
.max_bw
[pf
->hw
.pf_id
] = pf
->npar_max_bw
& I40E_ALT_BW_VALUE_MASK
;
7795 bw_data
.min_bw
[pf
->hw
.pf_id
] = pf
->npar_min_bw
& I40E_ALT_BW_VALUE_MASK
;
7797 /* Set the new bandwidths */
7798 status
= i40e_aq_configure_partition_bw(&pf
->hw
, &bw_data
, NULL
);
7804 * i40e_commit_npar_bw_setting - Commit BW settings for this PF partition
7805 * @pf: board private structure
7807 i40e_status
i40e_commit_npar_bw_setting(struct i40e_pf
*pf
)
7809 /* Commit temporary BW setting to permanent NVM image */
7810 enum i40e_admin_queue_err last_aq_status
;
7814 if (pf
->hw
.partition_id
!= 1) {
7815 dev_info(&pf
->pdev
->dev
,
7816 "Commit BW only works on partition 1! This is partition %d",
7817 pf
->hw
.partition_id
);
7818 ret
= I40E_NOT_SUPPORTED
;
7822 /* Acquire NVM for read access */
7823 ret
= i40e_acquire_nvm(&pf
->hw
, I40E_RESOURCE_READ
);
7824 last_aq_status
= pf
->hw
.aq
.asq_last_status
;
7826 dev_info(&pf
->pdev
->dev
,
7827 "Cannot acquire NVM for read access, err %s aq_err %s\n",
7828 i40e_stat_str(&pf
->hw
, ret
),
7829 i40e_aq_str(&pf
->hw
, last_aq_status
));
7833 /* Read word 0x10 of NVM - SW compatibility word 1 */
7834 ret
= i40e_aq_read_nvm(&pf
->hw
,
7835 I40E_SR_NVM_CONTROL_WORD
,
7836 0x10, sizeof(nvm_word
), &nvm_word
,
7838 /* Save off last admin queue command status before releasing
7841 last_aq_status
= pf
->hw
.aq
.asq_last_status
;
7842 i40e_release_nvm(&pf
->hw
);
7844 dev_info(&pf
->pdev
->dev
, "NVM read error, err %s aq_err %s\n",
7845 i40e_stat_str(&pf
->hw
, ret
),
7846 i40e_aq_str(&pf
->hw
, last_aq_status
));
7850 /* Wait a bit for NVM release to complete */
7853 /* Acquire NVM for write access */
7854 ret
= i40e_acquire_nvm(&pf
->hw
, I40E_RESOURCE_WRITE
);
7855 last_aq_status
= pf
->hw
.aq
.asq_last_status
;
7857 dev_info(&pf
->pdev
->dev
,
7858 "Cannot acquire NVM for write access, err %s aq_err %s\n",
7859 i40e_stat_str(&pf
->hw
, ret
),
7860 i40e_aq_str(&pf
->hw
, last_aq_status
));
7863 /* Write it back out unchanged to initiate update NVM,
7864 * which will force a write of the shadow (alt) RAM to
7865 * the NVM - thus storing the bandwidth values permanently.
7867 ret
= i40e_aq_update_nvm(&pf
->hw
,
7868 I40E_SR_NVM_CONTROL_WORD
,
7869 0x10, sizeof(nvm_word
),
7870 &nvm_word
, true, NULL
);
7871 /* Save off last admin queue command status before releasing
7874 last_aq_status
= pf
->hw
.aq
.asq_last_status
;
7875 i40e_release_nvm(&pf
->hw
);
7877 dev_info(&pf
->pdev
->dev
,
7878 "BW settings NOT SAVED, err %s aq_err %s\n",
7879 i40e_stat_str(&pf
->hw
, ret
),
7880 i40e_aq_str(&pf
->hw
, last_aq_status
));
7887 * i40e_sw_init - Initialize general software structures (struct i40e_pf)
7888 * @pf: board private structure to initialize
7890 * i40e_sw_init initializes the Adapter private data structure.
7891 * Fields are initialized based on PCI device information and
7892 * OS network device settings (MTU size).
7894 static int i40e_sw_init(struct i40e_pf
*pf
)
7899 pf
->msg_enable
= netif_msg_init(I40E_DEFAULT_MSG_ENABLE
,
7900 (NETIF_MSG_DRV
|NETIF_MSG_PROBE
|NETIF_MSG_LINK
));
7901 pf
->hw
.debug_mask
= pf
->msg_enable
| I40E_DEBUG_DIAG
;
7902 if (debug
!= -1 && debug
!= I40E_DEFAULT_MSG_ENABLE
) {
7903 if (I40E_DEBUG_USER
& debug
)
7904 pf
->hw
.debug_mask
= debug
;
7905 pf
->msg_enable
= netif_msg_init((debug
& ~I40E_DEBUG_USER
),
7906 I40E_DEFAULT_MSG_ENABLE
);
7909 /* Set default capability flags */
7910 pf
->flags
= I40E_FLAG_RX_CSUM_ENABLED
|
7911 I40E_FLAG_MSI_ENABLED
|
7912 I40E_FLAG_LINK_POLLING_ENABLED
|
7913 I40E_FLAG_MSIX_ENABLED
;
7915 if (iommu_present(&pci_bus_type
))
7916 pf
->flags
|= I40E_FLAG_RX_PS_ENABLED
;
7918 pf
->flags
|= I40E_FLAG_RX_1BUF_ENABLED
;
7920 /* Set default ITR */
7921 pf
->rx_itr_default
= I40E_ITR_DYNAMIC
| I40E_ITR_RX_DEF
;
7922 pf
->tx_itr_default
= I40E_ITR_DYNAMIC
| I40E_ITR_TX_DEF
;
7924 /* Depending on PF configurations, it is possible that the RSS
7925 * maximum might end up larger than the available queues
7927 pf
->rss_size_max
= BIT(pf
->hw
.func_caps
.rss_table_entry_width
);
7929 pf
->rss_table_size
= pf
->hw
.func_caps
.rss_table_size
;
7930 pf
->rss_size_max
= min_t(int, pf
->rss_size_max
,
7931 pf
->hw
.func_caps
.num_tx_qp
);
7932 if (pf
->hw
.func_caps
.rss
) {
7933 pf
->flags
|= I40E_FLAG_RSS_ENABLED
;
7934 pf
->rss_size
= min_t(int, pf
->rss_size_max
, num_online_cpus());
7937 /* MFP mode enabled */
7938 if (pf
->hw
.func_caps
.npar_enable
|| pf
->hw
.func_caps
.flex10_enable
) {
7939 pf
->flags
|= I40E_FLAG_MFP_ENABLED
;
7940 dev_info(&pf
->pdev
->dev
, "MFP mode Enabled\n");
7941 if (i40e_get_npar_bw_setting(pf
))
7942 dev_warn(&pf
->pdev
->dev
,
7943 "Could not get NPAR bw settings\n");
7945 dev_info(&pf
->pdev
->dev
,
7946 "Min BW = %8.8x, Max BW = %8.8x\n",
7947 pf
->npar_min_bw
, pf
->npar_max_bw
);
7950 /* FW/NVM is not yet fixed in this regard */
7951 if ((pf
->hw
.func_caps
.fd_filters_guaranteed
> 0) ||
7952 (pf
->hw
.func_caps
.fd_filters_best_effort
> 0)) {
7953 pf
->flags
|= I40E_FLAG_FD_ATR_ENABLED
;
7954 pf
->atr_sample_rate
= I40E_DEFAULT_ATR_SAMPLE_RATE
;
7955 if (pf
->flags
& I40E_FLAG_MFP_ENABLED
&&
7956 pf
->hw
.num_partitions
> 1)
7957 dev_info(&pf
->pdev
->dev
,
7958 "Flow Director Sideband mode Disabled in MFP mode\n");
7960 pf
->flags
|= I40E_FLAG_FD_SB_ENABLED
;
7961 pf
->fdir_pf_filter_count
=
7962 pf
->hw
.func_caps
.fd_filters_guaranteed
;
7963 pf
->hw
.fdir_shared_filter_count
=
7964 pf
->hw
.func_caps
.fd_filters_best_effort
;
7967 if (pf
->hw
.func_caps
.vmdq
) {
7968 pf
->num_vmdq_vsis
= I40E_DEFAULT_NUM_VMDQ_VSI
;
7969 pf
->flags
|= I40E_FLAG_VMDQ_ENABLED
;
7973 i40e_init_pf_fcoe(pf
);
7975 #endif /* I40E_FCOE */
7976 #ifdef CONFIG_PCI_IOV
7977 if (pf
->hw
.func_caps
.num_vfs
&& pf
->hw
.partition_id
== 1) {
7978 pf
->num_vf_qps
= I40E_DEFAULT_QUEUES_PER_VF
;
7979 pf
->flags
|= I40E_FLAG_SRIOV_ENABLED
;
7980 pf
->num_req_vfs
= min_t(int,
7981 pf
->hw
.func_caps
.num_vfs
,
7984 #endif /* CONFIG_PCI_IOV */
7985 if (pf
->hw
.mac
.type
== I40E_MAC_X722
) {
7986 pf
->flags
|= I40E_FLAG_RSS_AQ_CAPABLE
|
7987 I40E_FLAG_128_QP_RSS_CAPABLE
|
7988 I40E_FLAG_HW_ATR_EVICT_CAPABLE
|
7989 I40E_FLAG_OUTER_UDP_CSUM_CAPABLE
|
7990 I40E_FLAG_WB_ON_ITR_CAPABLE
|
7991 I40E_FLAG_MULTIPLE_TCP_UDP_RSS_PCTYPE
;
7993 pf
->eeprom_version
= 0xDEAD;
7994 pf
->lan_veb
= I40E_NO_VEB
;
7995 pf
->lan_vsi
= I40E_NO_VSI
;
7997 /* By default FW has this off for performance reasons */
7998 pf
->flags
&= ~I40E_FLAG_VEB_STATS_ENABLED
;
8000 /* set up queue assignment tracking */
8001 size
= sizeof(struct i40e_lump_tracking
)
8002 + (sizeof(u16
) * pf
->hw
.func_caps
.num_tx_qp
);
8003 pf
->qp_pile
= kzalloc(size
, GFP_KERNEL
);
8008 pf
->qp_pile
->num_entries
= pf
->hw
.func_caps
.num_tx_qp
;
8009 pf
->qp_pile
->search_hint
= 0;
8011 pf
->tx_timeout_recovery_level
= 1;
8013 mutex_init(&pf
->switch_mutex
);
8015 /* If NPAR is enabled nudge the Tx scheduler */
8016 if (pf
->hw
.func_caps
.npar_enable
&& (!i40e_get_npar_bw_setting(pf
)))
8017 i40e_set_npar_bw_setting(pf
);
8024 * i40e_set_ntuple - set the ntuple feature flag and take action
8025 * @pf: board private structure to initialize
8026 * @features: the feature set that the stack is suggesting
8028 * returns a bool to indicate if reset needs to happen
8030 bool i40e_set_ntuple(struct i40e_pf
*pf
, netdev_features_t features
)
8032 bool need_reset
= false;
8034 /* Check if Flow Director n-tuple support was enabled or disabled. If
8035 * the state changed, we need to reset.
8037 if (features
& NETIF_F_NTUPLE
) {
8038 /* Enable filters and mark for reset */
8039 if (!(pf
->flags
& I40E_FLAG_FD_SB_ENABLED
))
8041 pf
->flags
|= I40E_FLAG_FD_SB_ENABLED
;
8043 /* turn off filters, mark for reset and clear SW filter list */
8044 if (pf
->flags
& I40E_FLAG_FD_SB_ENABLED
) {
8046 i40e_fdir_filter_exit(pf
);
8048 pf
->flags
&= ~I40E_FLAG_FD_SB_ENABLED
;
8049 pf
->auto_disable_flags
&= ~I40E_FLAG_FD_SB_ENABLED
;
8050 /* reset fd counters */
8051 pf
->fd_add_err
= pf
->fd_atr_cnt
= pf
->fd_tcp_rule
= 0;
8052 pf
->fdir_pf_active_filters
= 0;
8053 pf
->flags
|= I40E_FLAG_FD_ATR_ENABLED
;
8054 if (I40E_DEBUG_FD
& pf
->hw
.debug_mask
)
8055 dev_info(&pf
->pdev
->dev
, "ATR re-enabled.\n");
8056 /* if ATR was auto disabled it can be re-enabled. */
8057 if ((pf
->flags
& I40E_FLAG_FD_ATR_ENABLED
) &&
8058 (pf
->auto_disable_flags
& I40E_FLAG_FD_ATR_ENABLED
))
8059 pf
->auto_disable_flags
&= ~I40E_FLAG_FD_ATR_ENABLED
;
8065 * i40e_set_features - set the netdev feature flags
8066 * @netdev: ptr to the netdev being adjusted
8067 * @features: the feature set that the stack is suggesting
8069 static int i40e_set_features(struct net_device
*netdev
,
8070 netdev_features_t features
)
8072 struct i40e_netdev_priv
*np
= netdev_priv(netdev
);
8073 struct i40e_vsi
*vsi
= np
->vsi
;
8074 struct i40e_pf
*pf
= vsi
->back
;
8077 if (features
& NETIF_F_HW_VLAN_CTAG_RX
)
8078 i40e_vlan_stripping_enable(vsi
);
8080 i40e_vlan_stripping_disable(vsi
);
8082 need_reset
= i40e_set_ntuple(pf
, features
);
8085 i40e_do_reset(pf
, BIT_ULL(__I40E_PF_RESET_REQUESTED
));
8090 #ifdef CONFIG_I40E_VXLAN
8092 * i40e_get_vxlan_port_idx - Lookup a possibly offloaded for Rx UDP port
8093 * @pf: board private structure
8094 * @port: The UDP port to look up
8096 * Returns the index number or I40E_MAX_PF_UDP_OFFLOAD_PORTS if port not found
8098 static u8
i40e_get_vxlan_port_idx(struct i40e_pf
*pf
, __be16 port
)
8102 for (i
= 0; i
< I40E_MAX_PF_UDP_OFFLOAD_PORTS
; i
++) {
8103 if (pf
->vxlan_ports
[i
] == port
)
8111 * i40e_add_vxlan_port - Get notifications about VXLAN ports that come up
8112 * @netdev: This physical port's netdev
8113 * @sa_family: Socket Family that VXLAN is notifying us about
8114 * @port: New UDP port number that VXLAN started listening to
8116 static void i40e_add_vxlan_port(struct net_device
*netdev
,
8117 sa_family_t sa_family
, __be16 port
)
8119 struct i40e_netdev_priv
*np
= netdev_priv(netdev
);
8120 struct i40e_vsi
*vsi
= np
->vsi
;
8121 struct i40e_pf
*pf
= vsi
->back
;
8125 if (sa_family
== AF_INET6
)
8128 idx
= i40e_get_vxlan_port_idx(pf
, port
);
8130 /* Check if port already exists */
8131 if (idx
< I40E_MAX_PF_UDP_OFFLOAD_PORTS
) {
8132 netdev_info(netdev
, "vxlan port %d already offloaded\n",
8137 /* Now check if there is space to add the new port */
8138 next_idx
= i40e_get_vxlan_port_idx(pf
, 0);
8140 if (next_idx
== I40E_MAX_PF_UDP_OFFLOAD_PORTS
) {
8141 netdev_info(netdev
, "maximum number of vxlan UDP ports reached, not adding port %d\n",
8146 /* New port: add it and mark its index in the bitmap */
8147 pf
->vxlan_ports
[next_idx
] = port
;
8148 pf
->pending_vxlan_bitmap
|= BIT_ULL(next_idx
);
8149 pf
->flags
|= I40E_FLAG_VXLAN_FILTER_SYNC
;
8153 * i40e_del_vxlan_port - Get notifications about VXLAN ports that go away
8154 * @netdev: This physical port's netdev
8155 * @sa_family: Socket Family that VXLAN is notifying us about
8156 * @port: UDP port number that VXLAN stopped listening to
8158 static void i40e_del_vxlan_port(struct net_device
*netdev
,
8159 sa_family_t sa_family
, __be16 port
)
8161 struct i40e_netdev_priv
*np
= netdev_priv(netdev
);
8162 struct i40e_vsi
*vsi
= np
->vsi
;
8163 struct i40e_pf
*pf
= vsi
->back
;
8166 if (sa_family
== AF_INET6
)
8169 idx
= i40e_get_vxlan_port_idx(pf
, port
);
8171 /* Check if port already exists */
8172 if (idx
< I40E_MAX_PF_UDP_OFFLOAD_PORTS
) {
8173 /* if port exists, set it to 0 (mark for deletion)
8174 * and make it pending
8176 pf
->vxlan_ports
[idx
] = 0;
8177 pf
->pending_vxlan_bitmap
|= BIT_ULL(idx
);
8178 pf
->flags
|= I40E_FLAG_VXLAN_FILTER_SYNC
;
8180 netdev_warn(netdev
, "vxlan port %d was not found, not deleting\n",
8186 static int i40e_get_phys_port_id(struct net_device
*netdev
,
8187 struct netdev_phys_item_id
*ppid
)
8189 struct i40e_netdev_priv
*np
= netdev_priv(netdev
);
8190 struct i40e_pf
*pf
= np
->vsi
->back
;
8191 struct i40e_hw
*hw
= &pf
->hw
;
8193 if (!(pf
->flags
& I40E_FLAG_PORT_ID_VALID
))
8196 ppid
->id_len
= min_t(int, sizeof(hw
->mac
.port_addr
), sizeof(ppid
->id
));
8197 memcpy(ppid
->id
, hw
->mac
.port_addr
, ppid
->id_len
);
8203 * i40e_ndo_fdb_add - add an entry to the hardware database
8204 * @ndm: the input from the stack
8205 * @tb: pointer to array of nladdr (unused)
8206 * @dev: the net device pointer
8207 * @addr: the MAC address entry being added
8208 * @flags: instructions from stack about fdb operation
8210 static int i40e_ndo_fdb_add(struct ndmsg
*ndm
, struct nlattr
*tb
[],
8211 struct net_device
*dev
,
8212 const unsigned char *addr
, u16 vid
,
8215 struct i40e_netdev_priv
*np
= netdev_priv(dev
);
8216 struct i40e_pf
*pf
= np
->vsi
->back
;
8219 if (!(pf
->flags
& I40E_FLAG_SRIOV_ENABLED
))
8223 pr_info("%s: vlans aren't supported yet for dev_uc|mc_add()\n", dev
->name
);
8227 /* Hardware does not support aging addresses so if a
8228 * ndm_state is given only allow permanent addresses
8230 if (ndm
->ndm_state
&& !(ndm
->ndm_state
& NUD_PERMANENT
)) {
8231 netdev_info(dev
, "FDB only supports static addresses\n");
8235 if (is_unicast_ether_addr(addr
) || is_link_local_ether_addr(addr
))
8236 err
= dev_uc_add_excl(dev
, addr
);
8237 else if (is_multicast_ether_addr(addr
))
8238 err
= dev_mc_add_excl(dev
, addr
);
8242 /* Only return duplicate errors if NLM_F_EXCL is set */
8243 if (err
== -EEXIST
&& !(flags
& NLM_F_EXCL
))
8250 * i40e_ndo_bridge_setlink - Set the hardware bridge mode
8251 * @dev: the netdev being configured
8252 * @nlh: RTNL message
8254 * Inserts a new hardware bridge if not already created and
8255 * enables the bridging mode requested (VEB or VEPA). If the
8256 * hardware bridge has already been inserted and the request
8257 * is to change the mode then that requires a PF reset to
8258 * allow rebuild of the components with required hardware
8259 * bridge mode enabled.
8261 static int i40e_ndo_bridge_setlink(struct net_device
*dev
,
8262 struct nlmsghdr
*nlh
,
8265 struct i40e_netdev_priv
*np
= netdev_priv(dev
);
8266 struct i40e_vsi
*vsi
= np
->vsi
;
8267 struct i40e_pf
*pf
= vsi
->back
;
8268 struct i40e_veb
*veb
= NULL
;
8269 struct nlattr
*attr
, *br_spec
;
8272 /* Only for PF VSI for now */
8273 if (vsi
->seid
!= pf
->vsi
[pf
->lan_vsi
]->seid
)
8276 /* Find the HW bridge for PF VSI */
8277 for (i
= 0; i
< I40E_MAX_VEB
&& !veb
; i
++) {
8278 if (pf
->veb
[i
] && pf
->veb
[i
]->seid
== vsi
->uplink_seid
)
8282 br_spec
= nlmsg_find_attr(nlh
, sizeof(struct ifinfomsg
), IFLA_AF_SPEC
);
8284 nla_for_each_nested(attr
, br_spec
, rem
) {
8287 if (nla_type(attr
) != IFLA_BRIDGE_MODE
)
8290 mode
= nla_get_u16(attr
);
8291 if ((mode
!= BRIDGE_MODE_VEPA
) &&
8292 (mode
!= BRIDGE_MODE_VEB
))
8295 /* Insert a new HW bridge */
8297 veb
= i40e_veb_setup(pf
, 0, vsi
->uplink_seid
, vsi
->seid
,
8298 vsi
->tc_config
.enabled_tc
);
8300 veb
->bridge_mode
= mode
;
8301 i40e_config_bridge_mode(veb
);
8303 /* No Bridge HW offload available */
8307 } else if (mode
!= veb
->bridge_mode
) {
8308 /* Existing HW bridge but different mode needs reset */
8309 veb
->bridge_mode
= mode
;
8310 /* TODO: If no VFs or VMDq VSIs, disallow VEB mode */
8311 if (mode
== BRIDGE_MODE_VEB
)
8312 pf
->flags
|= I40E_FLAG_VEB_MODE_ENABLED
;
8314 pf
->flags
&= ~I40E_FLAG_VEB_MODE_ENABLED
;
8315 i40e_do_reset(pf
, BIT_ULL(__I40E_PF_RESET_REQUESTED
));
8324 * i40e_ndo_bridge_getlink - Get the hardware bridge mode
8327 * @seq: RTNL message seq #
8328 * @dev: the netdev being configured
8329 * @filter_mask: unused
8330 * @nlflags: netlink flags passed in
8332 * Return the mode in which the hardware bridge is operating in
8335 static int i40e_ndo_bridge_getlink(struct sk_buff
*skb
, u32 pid
, u32 seq
,
8336 struct net_device
*dev
,
8337 u32 __always_unused filter_mask
,
8340 struct i40e_netdev_priv
*np
= netdev_priv(dev
);
8341 struct i40e_vsi
*vsi
= np
->vsi
;
8342 struct i40e_pf
*pf
= vsi
->back
;
8343 struct i40e_veb
*veb
= NULL
;
8346 /* Only for PF VSI for now */
8347 if (vsi
->seid
!= pf
->vsi
[pf
->lan_vsi
]->seid
)
8350 /* Find the HW bridge for the PF VSI */
8351 for (i
= 0; i
< I40E_MAX_VEB
&& !veb
; i
++) {
8352 if (pf
->veb
[i
] && pf
->veb
[i
]->seid
== vsi
->uplink_seid
)
8359 return ndo_dflt_bridge_getlink(skb
, pid
, seq
, dev
, veb
->bridge_mode
,
8360 nlflags
, 0, 0, filter_mask
, NULL
);
8363 #define I40E_MAX_TUNNEL_HDR_LEN 80
8365 * i40e_features_check - Validate encapsulated packet conforms to limits
8367 * @netdev: This physical port's netdev
8368 * @features: Offload features that the stack believes apply
8370 static netdev_features_t
i40e_features_check(struct sk_buff
*skb
,
8371 struct net_device
*dev
,
8372 netdev_features_t features
)
8374 if (skb
->encapsulation
&&
8375 (skb_inner_mac_header(skb
) - skb_transport_header(skb
) >
8376 I40E_MAX_TUNNEL_HDR_LEN
))
8377 return features
& ~(NETIF_F_ALL_CSUM
| NETIF_F_GSO_MASK
);
8382 static const struct net_device_ops i40e_netdev_ops
= {
8383 .ndo_open
= i40e_open
,
8384 .ndo_stop
= i40e_close
,
8385 .ndo_start_xmit
= i40e_lan_xmit_frame
,
8386 .ndo_get_stats64
= i40e_get_netdev_stats_struct
,
8387 .ndo_set_rx_mode
= i40e_set_rx_mode
,
8388 .ndo_validate_addr
= eth_validate_addr
,
8389 .ndo_set_mac_address
= i40e_set_mac
,
8390 .ndo_change_mtu
= i40e_change_mtu
,
8391 .ndo_do_ioctl
= i40e_ioctl
,
8392 .ndo_tx_timeout
= i40e_tx_timeout
,
8393 .ndo_vlan_rx_add_vid
= i40e_vlan_rx_add_vid
,
8394 .ndo_vlan_rx_kill_vid
= i40e_vlan_rx_kill_vid
,
8395 #ifdef CONFIG_NET_POLL_CONTROLLER
8396 .ndo_poll_controller
= i40e_netpoll
,
8398 .ndo_setup_tc
= i40e_setup_tc
,
8400 .ndo_fcoe_enable
= i40e_fcoe_enable
,
8401 .ndo_fcoe_disable
= i40e_fcoe_disable
,
8403 .ndo_set_features
= i40e_set_features
,
8404 .ndo_set_vf_mac
= i40e_ndo_set_vf_mac
,
8405 .ndo_set_vf_vlan
= i40e_ndo_set_vf_port_vlan
,
8406 .ndo_set_vf_rate
= i40e_ndo_set_vf_bw
,
8407 .ndo_get_vf_config
= i40e_ndo_get_vf_config
,
8408 .ndo_set_vf_link_state
= i40e_ndo_set_vf_link_state
,
8409 .ndo_set_vf_spoofchk
= i40e_ndo_set_vf_spoofchk
,
8410 #ifdef CONFIG_I40E_VXLAN
8411 .ndo_add_vxlan_port
= i40e_add_vxlan_port
,
8412 .ndo_del_vxlan_port
= i40e_del_vxlan_port
,
8414 .ndo_get_phys_port_id
= i40e_get_phys_port_id
,
8415 .ndo_fdb_add
= i40e_ndo_fdb_add
,
8416 .ndo_features_check
= i40e_features_check
,
8417 .ndo_bridge_getlink
= i40e_ndo_bridge_getlink
,
8418 .ndo_bridge_setlink
= i40e_ndo_bridge_setlink
,
8422 * i40e_config_netdev - Setup the netdev flags
8423 * @vsi: the VSI being configured
8425 * Returns 0 on success, negative value on failure
8427 static int i40e_config_netdev(struct i40e_vsi
*vsi
)
8429 u8 brdcast
[ETH_ALEN
] = {0xff, 0xff, 0xff, 0xff, 0xff, 0xff};
8430 struct i40e_pf
*pf
= vsi
->back
;
8431 struct i40e_hw
*hw
= &pf
->hw
;
8432 struct i40e_netdev_priv
*np
;
8433 struct net_device
*netdev
;
8434 u8 mac_addr
[ETH_ALEN
];
8437 etherdev_size
= sizeof(struct i40e_netdev_priv
);
8438 netdev
= alloc_etherdev_mq(etherdev_size
, vsi
->alloc_queue_pairs
);
8442 vsi
->netdev
= netdev
;
8443 np
= netdev_priv(netdev
);
8446 netdev
->hw_enc_features
|= NETIF_F_IP_CSUM
|
8447 NETIF_F_GSO_UDP_TUNNEL
|
8450 netdev
->features
= NETIF_F_SG
|
8454 NETIF_F_GSO_UDP_TUNNEL
|
8455 NETIF_F_HW_VLAN_CTAG_TX
|
8456 NETIF_F_HW_VLAN_CTAG_RX
|
8457 NETIF_F_HW_VLAN_CTAG_FILTER
|
8466 if (!(pf
->flags
& I40E_FLAG_MFP_ENABLED
))
8467 netdev
->features
|= NETIF_F_NTUPLE
;
8469 /* copy netdev features into list of user selectable features */
8470 netdev
->hw_features
|= netdev
->features
;
8472 if (vsi
->type
== I40E_VSI_MAIN
) {
8473 SET_NETDEV_DEV(netdev
, &pf
->pdev
->dev
);
8474 ether_addr_copy(mac_addr
, hw
->mac
.perm_addr
);
8475 /* The following steps are necessary to prevent reception
8476 * of tagged packets - some older NVM configurations load a
8477 * default a MAC-VLAN filter that accepts any tagged packet
8478 * which must be replaced by a normal filter.
8480 if (!i40e_rm_default_mac_filter(vsi
, mac_addr
))
8481 i40e_add_filter(vsi
, mac_addr
,
8482 I40E_VLAN_ANY
, false, true);
8484 /* relate the VSI_VMDQ name to the VSI_MAIN name */
8485 snprintf(netdev
->name
, IFNAMSIZ
, "%sv%%d",
8486 pf
->vsi
[pf
->lan_vsi
]->netdev
->name
);
8487 random_ether_addr(mac_addr
);
8488 i40e_add_filter(vsi
, mac_addr
, I40E_VLAN_ANY
, false, false);
8490 i40e_add_filter(vsi
, brdcast
, I40E_VLAN_ANY
, false, false);
8492 ether_addr_copy(netdev
->dev_addr
, mac_addr
);
8493 ether_addr_copy(netdev
->perm_addr
, mac_addr
);
8494 /* vlan gets same features (except vlan offload)
8495 * after any tweaks for specific VSI types
8497 netdev
->vlan_features
= netdev
->features
& ~(NETIF_F_HW_VLAN_CTAG_TX
|
8498 NETIF_F_HW_VLAN_CTAG_RX
|
8499 NETIF_F_HW_VLAN_CTAG_FILTER
);
8500 netdev
->priv_flags
|= IFF_UNICAST_FLT
;
8501 netdev
->priv_flags
|= IFF_SUPP_NOFCS
;
8502 /* Setup netdev TC information */
8503 i40e_vsi_config_netdev_tc(vsi
, vsi
->tc_config
.enabled_tc
);
8505 netdev
->netdev_ops
= &i40e_netdev_ops
;
8506 netdev
->watchdog_timeo
= 5 * HZ
;
8507 i40e_set_ethtool_ops(netdev
);
8509 i40e_fcoe_config_netdev(netdev
, vsi
);
8516 * i40e_vsi_delete - Delete a VSI from the switch
8517 * @vsi: the VSI being removed
8519 * Returns 0 on success, negative value on failure
8521 static void i40e_vsi_delete(struct i40e_vsi
*vsi
)
8523 /* remove default VSI is not allowed */
8524 if (vsi
== vsi
->back
->vsi
[vsi
->back
->lan_vsi
])
8527 i40e_aq_delete_element(&vsi
->back
->hw
, vsi
->seid
, NULL
);
8531 * i40e_is_vsi_uplink_mode_veb - Check if the VSI's uplink bridge mode is VEB
8532 * @vsi: the VSI being queried
8534 * Returns 1 if HW bridge mode is VEB and return 0 in case of VEPA mode
8536 int i40e_is_vsi_uplink_mode_veb(struct i40e_vsi
*vsi
)
8538 struct i40e_veb
*veb
;
8539 struct i40e_pf
*pf
= vsi
->back
;
8541 /* Uplink is not a bridge so default to VEB */
8542 if (vsi
->veb_idx
== I40E_NO_VEB
)
8545 veb
= pf
->veb
[vsi
->veb_idx
];
8546 /* Uplink is a bridge in VEPA mode */
8547 if (veb
&& (veb
->bridge_mode
& BRIDGE_MODE_VEPA
))
8550 /* Uplink is a bridge in VEB mode */
8555 * i40e_add_vsi - Add a VSI to the switch
8556 * @vsi: the VSI being configured
8558 * This initializes a VSI context depending on the VSI type to be added and
8559 * passes it down to the add_vsi aq command.
8561 static int i40e_add_vsi(struct i40e_vsi
*vsi
)
8564 struct i40e_mac_filter
*f
, *ftmp
;
8565 struct i40e_pf
*pf
= vsi
->back
;
8566 struct i40e_hw
*hw
= &pf
->hw
;
8567 struct i40e_vsi_context ctxt
;
8568 u8 enabled_tc
= 0x1; /* TC0 enabled */
8571 memset(&ctxt
, 0, sizeof(ctxt
));
8572 switch (vsi
->type
) {
8574 /* The PF's main VSI is already setup as part of the
8575 * device initialization, so we'll not bother with
8576 * the add_vsi call, but we will retrieve the current
8579 ctxt
.seid
= pf
->main_vsi_seid
;
8580 ctxt
.pf_num
= pf
->hw
.pf_id
;
8582 ret
= i40e_aq_get_vsi_params(&pf
->hw
, &ctxt
, NULL
);
8583 ctxt
.flags
= I40E_AQ_VSI_TYPE_PF
;
8585 dev_info(&pf
->pdev
->dev
,
8586 "couldn't get PF vsi config, err %s aq_err %s\n",
8587 i40e_stat_str(&pf
->hw
, ret
),
8588 i40e_aq_str(&pf
->hw
,
8589 pf
->hw
.aq
.asq_last_status
));
8592 vsi
->info
= ctxt
.info
;
8593 vsi
->info
.valid_sections
= 0;
8595 vsi
->seid
= ctxt
.seid
;
8596 vsi
->id
= ctxt
.vsi_number
;
8598 enabled_tc
= i40e_pf_get_tc_map(pf
);
8600 /* MFP mode setup queue map and update VSI */
8601 if ((pf
->flags
& I40E_FLAG_MFP_ENABLED
) &&
8602 !(pf
->hw
.func_caps
.iscsi
)) { /* NIC type PF */
8603 memset(&ctxt
, 0, sizeof(ctxt
));
8604 ctxt
.seid
= pf
->main_vsi_seid
;
8605 ctxt
.pf_num
= pf
->hw
.pf_id
;
8607 i40e_vsi_setup_queue_map(vsi
, &ctxt
, enabled_tc
, false);
8608 ret
= i40e_aq_update_vsi_params(hw
, &ctxt
, NULL
);
8610 dev_info(&pf
->pdev
->dev
,
8611 "update vsi failed, err %s aq_err %s\n",
8612 i40e_stat_str(&pf
->hw
, ret
),
8613 i40e_aq_str(&pf
->hw
,
8614 pf
->hw
.aq
.asq_last_status
));
8618 /* update the local VSI info queue map */
8619 i40e_vsi_update_queue_map(vsi
, &ctxt
);
8620 vsi
->info
.valid_sections
= 0;
8622 /* Default/Main VSI is only enabled for TC0
8623 * reconfigure it to enable all TCs that are
8624 * available on the port in SFP mode.
8625 * For MFP case the iSCSI PF would use this
8626 * flow to enable LAN+iSCSI TC.
8628 ret
= i40e_vsi_config_tc(vsi
, enabled_tc
);
8630 dev_info(&pf
->pdev
->dev
,
8631 "failed to configure TCs for main VSI tc_map 0x%08x, err %s aq_err %s\n",
8633 i40e_stat_str(&pf
->hw
, ret
),
8634 i40e_aq_str(&pf
->hw
,
8635 pf
->hw
.aq
.asq_last_status
));
8642 ctxt
.pf_num
= hw
->pf_id
;
8644 ctxt
.uplink_seid
= vsi
->uplink_seid
;
8645 ctxt
.connection_type
= I40E_AQ_VSI_CONN_TYPE_NORMAL
;
8646 ctxt
.flags
= I40E_AQ_VSI_TYPE_PF
;
8647 if ((pf
->flags
& I40E_FLAG_VEB_MODE_ENABLED
) &&
8648 (i40e_is_vsi_uplink_mode_veb(vsi
))) {
8649 ctxt
.info
.valid_sections
|=
8650 cpu_to_le16(I40E_AQ_VSI_PROP_SWITCH_VALID
);
8651 ctxt
.info
.switch_id
=
8652 cpu_to_le16(I40E_AQ_VSI_SW_ID_FLAG_ALLOW_LB
);
8654 i40e_vsi_setup_queue_map(vsi
, &ctxt
, enabled_tc
, true);
8657 case I40E_VSI_VMDQ2
:
8658 ctxt
.pf_num
= hw
->pf_id
;
8660 ctxt
.uplink_seid
= vsi
->uplink_seid
;
8661 ctxt
.connection_type
= I40E_AQ_VSI_CONN_TYPE_NORMAL
;
8662 ctxt
.flags
= I40E_AQ_VSI_TYPE_VMDQ2
;
8664 /* This VSI is connected to VEB so the switch_id
8665 * should be set to zero by default.
8667 if (i40e_is_vsi_uplink_mode_veb(vsi
)) {
8668 ctxt
.info
.valid_sections
|=
8669 cpu_to_le16(I40E_AQ_VSI_PROP_SWITCH_VALID
);
8670 ctxt
.info
.switch_id
=
8671 cpu_to_le16(I40E_AQ_VSI_SW_ID_FLAG_ALLOW_LB
);
8674 /* Setup the VSI tx/rx queue map for TC0 only for now */
8675 i40e_vsi_setup_queue_map(vsi
, &ctxt
, enabled_tc
, true);
8678 case I40E_VSI_SRIOV
:
8679 ctxt
.pf_num
= hw
->pf_id
;
8680 ctxt
.vf_num
= vsi
->vf_id
+ hw
->func_caps
.vf_base_id
;
8681 ctxt
.uplink_seid
= vsi
->uplink_seid
;
8682 ctxt
.connection_type
= I40E_AQ_VSI_CONN_TYPE_NORMAL
;
8683 ctxt
.flags
= I40E_AQ_VSI_TYPE_VF
;
8685 /* This VSI is connected to VEB so the switch_id
8686 * should be set to zero by default.
8688 if (i40e_is_vsi_uplink_mode_veb(vsi
)) {
8689 ctxt
.info
.valid_sections
|=
8690 cpu_to_le16(I40E_AQ_VSI_PROP_SWITCH_VALID
);
8691 ctxt
.info
.switch_id
=
8692 cpu_to_le16(I40E_AQ_VSI_SW_ID_FLAG_ALLOW_LB
);
8695 ctxt
.info
.valid_sections
|= cpu_to_le16(I40E_AQ_VSI_PROP_VLAN_VALID
);
8696 ctxt
.info
.port_vlan_flags
|= I40E_AQ_VSI_PVLAN_MODE_ALL
;
8697 if (pf
->vf
[vsi
->vf_id
].spoofchk
) {
8698 ctxt
.info
.valid_sections
|=
8699 cpu_to_le16(I40E_AQ_VSI_PROP_SECURITY_VALID
);
8700 ctxt
.info
.sec_flags
|=
8701 (I40E_AQ_VSI_SEC_FLAG_ENABLE_VLAN_CHK
|
8702 I40E_AQ_VSI_SEC_FLAG_ENABLE_MAC_CHK
);
8704 /* Setup the VSI tx/rx queue map for TC0 only for now */
8705 i40e_vsi_setup_queue_map(vsi
, &ctxt
, enabled_tc
, true);
8710 ret
= i40e_fcoe_vsi_init(vsi
, &ctxt
);
8712 dev_info(&pf
->pdev
->dev
, "failed to initialize FCoE VSI\n");
8717 #endif /* I40E_FCOE */
8722 if (vsi
->type
!= I40E_VSI_MAIN
) {
8723 ret
= i40e_aq_add_vsi(hw
, &ctxt
, NULL
);
8725 dev_info(&vsi
->back
->pdev
->dev
,
8726 "add vsi failed, err %s aq_err %s\n",
8727 i40e_stat_str(&pf
->hw
, ret
),
8728 i40e_aq_str(&pf
->hw
,
8729 pf
->hw
.aq
.asq_last_status
));
8733 vsi
->info
= ctxt
.info
;
8734 vsi
->info
.valid_sections
= 0;
8735 vsi
->seid
= ctxt
.seid
;
8736 vsi
->id
= ctxt
.vsi_number
;
8739 /* If macvlan filters already exist, force them to get loaded */
8740 list_for_each_entry_safe(f
, ftmp
, &vsi
->mac_filter_list
, list
) {
8744 if (f
->is_laa
&& vsi
->type
== I40E_VSI_MAIN
) {
8745 struct i40e_aqc_remove_macvlan_element_data element
;
8747 memset(&element
, 0, sizeof(element
));
8748 ether_addr_copy(element
.mac_addr
, f
->macaddr
);
8749 element
.flags
= I40E_AQC_MACVLAN_DEL_PERFECT_MATCH
;
8750 ret
= i40e_aq_remove_macvlan(hw
, vsi
->seid
,
8753 /* some older FW has a different default */
8755 I40E_AQC_MACVLAN_DEL_IGNORE_VLAN
;
8756 i40e_aq_remove_macvlan(hw
, vsi
->seid
,
8760 i40e_aq_mac_address_write(hw
,
8761 I40E_AQC_WRITE_TYPE_LAA_WOL
,
8766 vsi
->flags
|= I40E_VSI_FLAG_FILTER_CHANGED
;
8767 pf
->flags
|= I40E_FLAG_FILTER_SYNC
;
8770 /* Update VSI BW information */
8771 ret
= i40e_vsi_get_bw_info(vsi
);
8773 dev_info(&pf
->pdev
->dev
,
8774 "couldn't get vsi bw info, err %s aq_err %s\n",
8775 i40e_stat_str(&pf
->hw
, ret
),
8776 i40e_aq_str(&pf
->hw
, pf
->hw
.aq
.asq_last_status
));
8777 /* VSI is already added so not tearing that up */
8786 * i40e_vsi_release - Delete a VSI and free its resources
8787 * @vsi: the VSI being removed
8789 * Returns 0 on success or < 0 on error
8791 int i40e_vsi_release(struct i40e_vsi
*vsi
)
8793 struct i40e_mac_filter
*f
, *ftmp
;
8794 struct i40e_veb
*veb
= NULL
;
8801 /* release of a VEB-owner or last VSI is not allowed */
8802 if (vsi
->flags
& I40E_VSI_FLAG_VEB_OWNER
) {
8803 dev_info(&pf
->pdev
->dev
, "VSI %d has existing VEB %d\n",
8804 vsi
->seid
, vsi
->uplink_seid
);
8807 if (vsi
== pf
->vsi
[pf
->lan_vsi
] &&
8808 !test_bit(__I40E_DOWN
, &pf
->state
)) {
8809 dev_info(&pf
->pdev
->dev
, "Can't remove PF VSI\n");
8813 uplink_seid
= vsi
->uplink_seid
;
8814 if (vsi
->type
!= I40E_VSI_SRIOV
) {
8815 if (vsi
->netdev_registered
) {
8816 vsi
->netdev_registered
= false;
8818 /* results in a call to i40e_close() */
8819 unregister_netdev(vsi
->netdev
);
8822 i40e_vsi_close(vsi
);
8824 i40e_vsi_disable_irq(vsi
);
8827 list_for_each_entry_safe(f
, ftmp
, &vsi
->mac_filter_list
, list
)
8828 i40e_del_filter(vsi
, f
->macaddr
, f
->vlan
,
8829 f
->is_vf
, f
->is_netdev
);
8830 i40e_sync_vsi_filters(vsi
, false);
8832 i40e_vsi_delete(vsi
);
8833 i40e_vsi_free_q_vectors(vsi
);
8835 free_netdev(vsi
->netdev
);
8838 i40e_vsi_clear_rings(vsi
);
8839 i40e_vsi_clear(vsi
);
8841 /* If this was the last thing on the VEB, except for the
8842 * controlling VSI, remove the VEB, which puts the controlling
8843 * VSI onto the next level down in the switch.
8845 * Well, okay, there's one more exception here: don't remove
8846 * the orphan VEBs yet. We'll wait for an explicit remove request
8847 * from up the network stack.
8849 for (n
= 0, i
= 0; i
< pf
->num_alloc_vsi
; i
++) {
8851 pf
->vsi
[i
]->uplink_seid
== uplink_seid
&&
8852 (pf
->vsi
[i
]->flags
& I40E_VSI_FLAG_VEB_OWNER
) == 0) {
8853 n
++; /* count the VSIs */
8856 for (i
= 0; i
< I40E_MAX_VEB
; i
++) {
8859 if (pf
->veb
[i
]->uplink_seid
== uplink_seid
)
8860 n
++; /* count the VEBs */
8861 if (pf
->veb
[i
]->seid
== uplink_seid
)
8864 if (n
== 0 && veb
&& veb
->uplink_seid
!= 0)
8865 i40e_veb_release(veb
);
8871 * i40e_vsi_setup_vectors - Set up the q_vectors for the given VSI
8872 * @vsi: ptr to the VSI
8874 * This should only be called after i40e_vsi_mem_alloc() which allocates the
8875 * corresponding SW VSI structure and initializes num_queue_pairs for the
8876 * newly allocated VSI.
8878 * Returns 0 on success or negative on failure
8880 static int i40e_vsi_setup_vectors(struct i40e_vsi
*vsi
)
8883 struct i40e_pf
*pf
= vsi
->back
;
8885 if (vsi
->q_vectors
[0]) {
8886 dev_info(&pf
->pdev
->dev
, "VSI %d has existing q_vectors\n",
8891 if (vsi
->base_vector
) {
8892 dev_info(&pf
->pdev
->dev
, "VSI %d has non-zero base vector %d\n",
8893 vsi
->seid
, vsi
->base_vector
);
8897 ret
= i40e_vsi_alloc_q_vectors(vsi
);
8899 dev_info(&pf
->pdev
->dev
,
8900 "failed to allocate %d q_vector for VSI %d, ret=%d\n",
8901 vsi
->num_q_vectors
, vsi
->seid
, ret
);
8902 vsi
->num_q_vectors
= 0;
8903 goto vector_setup_out
;
8906 /* In Legacy mode, we do not have to get any other vector since we
8907 * piggyback on the misc/ICR0 for queue interrupts.
8909 if (!(pf
->flags
& I40E_FLAG_MSIX_ENABLED
))
8911 if (vsi
->num_q_vectors
)
8912 vsi
->base_vector
= i40e_get_lump(pf
, pf
->irq_pile
,
8913 vsi
->num_q_vectors
, vsi
->idx
);
8914 if (vsi
->base_vector
< 0) {
8915 dev_info(&pf
->pdev
->dev
,
8916 "failed to get tracking for %d vectors for VSI %d, err=%d\n",
8917 vsi
->num_q_vectors
, vsi
->seid
, vsi
->base_vector
);
8918 i40e_vsi_free_q_vectors(vsi
);
8920 goto vector_setup_out
;
8928 * i40e_vsi_reinit_setup - return and reallocate resources for a VSI
8929 * @vsi: pointer to the vsi.
8931 * This re-allocates a vsi's queue resources.
8933 * Returns pointer to the successfully allocated and configured VSI sw struct
8934 * on success, otherwise returns NULL on failure.
8936 static struct i40e_vsi
*i40e_vsi_reinit_setup(struct i40e_vsi
*vsi
)
8938 struct i40e_pf
*pf
= vsi
->back
;
8942 i40e_put_lump(pf
->qp_pile
, vsi
->base_queue
, vsi
->idx
);
8943 i40e_vsi_clear_rings(vsi
);
8945 i40e_vsi_free_arrays(vsi
, false);
8946 i40e_set_num_rings_in_vsi(vsi
);
8947 ret
= i40e_vsi_alloc_arrays(vsi
, false);
8951 ret
= i40e_get_lump(pf
, pf
->qp_pile
, vsi
->alloc_queue_pairs
, vsi
->idx
);
8953 dev_info(&pf
->pdev
->dev
,
8954 "failed to get tracking for %d queues for VSI %d err %d\n",
8955 vsi
->alloc_queue_pairs
, vsi
->seid
, ret
);
8958 vsi
->base_queue
= ret
;
8960 /* Update the FW view of the VSI. Force a reset of TC and queue
8961 * layout configurations.
8963 enabled_tc
= pf
->vsi
[pf
->lan_vsi
]->tc_config
.enabled_tc
;
8964 pf
->vsi
[pf
->lan_vsi
]->tc_config
.enabled_tc
= 0;
8965 pf
->vsi
[pf
->lan_vsi
]->seid
= pf
->main_vsi_seid
;
8966 i40e_vsi_config_tc(pf
->vsi
[pf
->lan_vsi
], enabled_tc
);
8968 /* assign it some queues */
8969 ret
= i40e_alloc_rings(vsi
);
8973 /* map all of the rings to the q_vectors */
8974 i40e_vsi_map_rings_to_vectors(vsi
);
8978 i40e_vsi_free_q_vectors(vsi
);
8979 if (vsi
->netdev_registered
) {
8980 vsi
->netdev_registered
= false;
8981 unregister_netdev(vsi
->netdev
);
8982 free_netdev(vsi
->netdev
);
8985 i40e_aq_delete_element(&pf
->hw
, vsi
->seid
, NULL
);
8987 i40e_vsi_clear(vsi
);
8992 * i40e_vsi_setup - Set up a VSI by a given type
8993 * @pf: board private structure
8995 * @uplink_seid: the switch element to link to
8996 * @param1: usage depends upon VSI type. For VF types, indicates VF id
8998 * This allocates the sw VSI structure and its queue resources, then add a VSI
8999 * to the identified VEB.
9001 * Returns pointer to the successfully allocated and configure VSI sw struct on
9002 * success, otherwise returns NULL on failure.
9004 struct i40e_vsi
*i40e_vsi_setup(struct i40e_pf
*pf
, u8 type
,
9005 u16 uplink_seid
, u32 param1
)
9007 struct i40e_vsi
*vsi
= NULL
;
9008 struct i40e_veb
*veb
= NULL
;
9012 /* The requested uplink_seid must be either
9013 * - the PF's port seid
9014 * no VEB is needed because this is the PF
9015 * or this is a Flow Director special case VSI
9016 * - seid of an existing VEB
9017 * - seid of a VSI that owns an existing VEB
9018 * - seid of a VSI that doesn't own a VEB
9019 * a new VEB is created and the VSI becomes the owner
9020 * - seid of the PF VSI, which is what creates the first VEB
9021 * this is a special case of the previous
9023 * Find which uplink_seid we were given and create a new VEB if needed
9025 for (i
= 0; i
< I40E_MAX_VEB
; i
++) {
9026 if (pf
->veb
[i
] && pf
->veb
[i
]->seid
== uplink_seid
) {
9032 if (!veb
&& uplink_seid
!= pf
->mac_seid
) {
9034 for (i
= 0; i
< pf
->num_alloc_vsi
; i
++) {
9035 if (pf
->vsi
[i
] && pf
->vsi
[i
]->seid
== uplink_seid
) {
9041 dev_info(&pf
->pdev
->dev
, "no such uplink_seid %d\n",
9046 if (vsi
->uplink_seid
== pf
->mac_seid
)
9047 veb
= i40e_veb_setup(pf
, 0, pf
->mac_seid
, vsi
->seid
,
9048 vsi
->tc_config
.enabled_tc
);
9049 else if ((vsi
->flags
& I40E_VSI_FLAG_VEB_OWNER
) == 0)
9050 veb
= i40e_veb_setup(pf
, 0, vsi
->uplink_seid
, vsi
->seid
,
9051 vsi
->tc_config
.enabled_tc
);
9053 if (vsi
->seid
!= pf
->vsi
[pf
->lan_vsi
]->seid
) {
9054 dev_info(&vsi
->back
->pdev
->dev
,
9055 "New VSI creation error, uplink seid of LAN VSI expected.\n");
9058 /* We come up by default in VEPA mode if SRIOV is not
9059 * already enabled, in which case we can't force VEPA
9062 if (!(pf
->flags
& I40E_FLAG_VEB_MODE_ENABLED
)) {
9063 veb
->bridge_mode
= BRIDGE_MODE_VEPA
;
9064 pf
->flags
&= ~I40E_FLAG_VEB_MODE_ENABLED
;
9066 i40e_config_bridge_mode(veb
);
9068 for (i
= 0; i
< I40E_MAX_VEB
&& !veb
; i
++) {
9069 if (pf
->veb
[i
] && pf
->veb
[i
]->seid
== vsi
->uplink_seid
)
9073 dev_info(&pf
->pdev
->dev
, "couldn't add VEB\n");
9077 vsi
->flags
|= I40E_VSI_FLAG_VEB_OWNER
;
9078 uplink_seid
= veb
->seid
;
9081 /* get vsi sw struct */
9082 v_idx
= i40e_vsi_mem_alloc(pf
, type
);
9085 vsi
= pf
->vsi
[v_idx
];
9089 vsi
->veb_idx
= (veb
? veb
->idx
: I40E_NO_VEB
);
9091 if (type
== I40E_VSI_MAIN
)
9092 pf
->lan_vsi
= v_idx
;
9093 else if (type
== I40E_VSI_SRIOV
)
9094 vsi
->vf_id
= param1
;
9095 /* assign it some queues */
9096 ret
= i40e_get_lump(pf
, pf
->qp_pile
, vsi
->alloc_queue_pairs
,
9099 dev_info(&pf
->pdev
->dev
,
9100 "failed to get tracking for %d queues for VSI %d err=%d\n",
9101 vsi
->alloc_queue_pairs
, vsi
->seid
, ret
);
9104 vsi
->base_queue
= ret
;
9106 /* get a VSI from the hardware */
9107 vsi
->uplink_seid
= uplink_seid
;
9108 ret
= i40e_add_vsi(vsi
);
9112 switch (vsi
->type
) {
9113 /* setup the netdev if needed */
9115 case I40E_VSI_VMDQ2
:
9117 ret
= i40e_config_netdev(vsi
);
9120 ret
= register_netdev(vsi
->netdev
);
9123 vsi
->netdev_registered
= true;
9124 netif_carrier_off(vsi
->netdev
);
9125 #ifdef CONFIG_I40E_DCB
9126 /* Setup DCB netlink interface */
9127 i40e_dcbnl_setup(vsi
);
9128 #endif /* CONFIG_I40E_DCB */
9132 /* set up vectors and rings if needed */
9133 ret
= i40e_vsi_setup_vectors(vsi
);
9137 ret
= i40e_alloc_rings(vsi
);
9141 /* map all of the rings to the q_vectors */
9142 i40e_vsi_map_rings_to_vectors(vsi
);
9144 i40e_vsi_reset_stats(vsi
);
9148 /* no netdev or rings for the other VSI types */
9152 if ((pf
->flags
& I40E_FLAG_RSS_AQ_CAPABLE
) &&
9153 (vsi
->type
== I40E_VSI_VMDQ2
)) {
9154 ret
= i40e_vsi_config_rss(vsi
);
9159 i40e_vsi_free_q_vectors(vsi
);
9161 if (vsi
->netdev_registered
) {
9162 vsi
->netdev_registered
= false;
9163 unregister_netdev(vsi
->netdev
);
9164 free_netdev(vsi
->netdev
);
9168 i40e_aq_delete_element(&pf
->hw
, vsi
->seid
, NULL
);
9170 i40e_vsi_clear(vsi
);
9176 * i40e_veb_get_bw_info - Query VEB BW information
9177 * @veb: the veb to query
9179 * Query the Tx scheduler BW configuration data for given VEB
9181 static int i40e_veb_get_bw_info(struct i40e_veb
*veb
)
9183 struct i40e_aqc_query_switching_comp_ets_config_resp ets_data
;
9184 struct i40e_aqc_query_switching_comp_bw_config_resp bw_data
;
9185 struct i40e_pf
*pf
= veb
->pf
;
9186 struct i40e_hw
*hw
= &pf
->hw
;
9191 ret
= i40e_aq_query_switch_comp_bw_config(hw
, veb
->seid
,
9194 dev_info(&pf
->pdev
->dev
,
9195 "query veb bw config failed, err %s aq_err %s\n",
9196 i40e_stat_str(&pf
->hw
, ret
),
9197 i40e_aq_str(&pf
->hw
, hw
->aq
.asq_last_status
));
9201 ret
= i40e_aq_query_switch_comp_ets_config(hw
, veb
->seid
,
9204 dev_info(&pf
->pdev
->dev
,
9205 "query veb bw ets config failed, err %s aq_err %s\n",
9206 i40e_stat_str(&pf
->hw
, ret
),
9207 i40e_aq_str(&pf
->hw
, hw
->aq
.asq_last_status
));
9211 veb
->bw_limit
= le16_to_cpu(ets_data
.port_bw_limit
);
9212 veb
->bw_max_quanta
= ets_data
.tc_bw_max
;
9213 veb
->is_abs_credits
= bw_data
.absolute_credits_enable
;
9214 veb
->enabled_tc
= ets_data
.tc_valid_bits
;
9215 tc_bw_max
= le16_to_cpu(bw_data
.tc_bw_max
[0]) |
9216 (le16_to_cpu(bw_data
.tc_bw_max
[1]) << 16);
9217 for (i
= 0; i
< I40E_MAX_TRAFFIC_CLASS
; i
++) {
9218 veb
->bw_tc_share_credits
[i
] = bw_data
.tc_bw_share_credits
[i
];
9219 veb
->bw_tc_limit_credits
[i
] =
9220 le16_to_cpu(bw_data
.tc_bw_limits
[i
]);
9221 veb
->bw_tc_max_quanta
[i
] = ((tc_bw_max
>> (i
*4)) & 0x7);
9229 * i40e_veb_mem_alloc - Allocates the next available struct veb in the PF
9230 * @pf: board private structure
9232 * On error: returns error code (negative)
9233 * On success: returns vsi index in PF (positive)
9235 static int i40e_veb_mem_alloc(struct i40e_pf
*pf
)
9238 struct i40e_veb
*veb
;
9241 /* Need to protect the allocation of switch elements at the PF level */
9242 mutex_lock(&pf
->switch_mutex
);
9244 /* VEB list may be fragmented if VEB creation/destruction has
9245 * been happening. We can afford to do a quick scan to look
9246 * for any free slots in the list.
9248 * find next empty veb slot, looping back around if necessary
9251 while ((i
< I40E_MAX_VEB
) && (pf
->veb
[i
] != NULL
))
9253 if (i
>= I40E_MAX_VEB
) {
9255 goto err_alloc_veb
; /* out of VEB slots! */
9258 veb
= kzalloc(sizeof(*veb
), GFP_KERNEL
);
9265 veb
->enabled_tc
= 1;
9270 mutex_unlock(&pf
->switch_mutex
);
9275 * i40e_switch_branch_release - Delete a branch of the switch tree
9276 * @branch: where to start deleting
9278 * This uses recursion to find the tips of the branch to be
9279 * removed, deleting until we get back to and can delete this VEB.
9281 static void i40e_switch_branch_release(struct i40e_veb
*branch
)
9283 struct i40e_pf
*pf
= branch
->pf
;
9284 u16 branch_seid
= branch
->seid
;
9285 u16 veb_idx
= branch
->idx
;
9288 /* release any VEBs on this VEB - RECURSION */
9289 for (i
= 0; i
< I40E_MAX_VEB
; i
++) {
9292 if (pf
->veb
[i
]->uplink_seid
== branch
->seid
)
9293 i40e_switch_branch_release(pf
->veb
[i
]);
9296 /* Release the VSIs on this VEB, but not the owner VSI.
9298 * NOTE: Removing the last VSI on a VEB has the SIDE EFFECT of removing
9299 * the VEB itself, so don't use (*branch) after this loop.
9301 for (i
= 0; i
< pf
->num_alloc_vsi
; i
++) {
9304 if (pf
->vsi
[i
]->uplink_seid
== branch_seid
&&
9305 (pf
->vsi
[i
]->flags
& I40E_VSI_FLAG_VEB_OWNER
) == 0) {
9306 i40e_vsi_release(pf
->vsi
[i
]);
9310 /* There's one corner case where the VEB might not have been
9311 * removed, so double check it here and remove it if needed.
9312 * This case happens if the veb was created from the debugfs
9313 * commands and no VSIs were added to it.
9315 if (pf
->veb
[veb_idx
])
9316 i40e_veb_release(pf
->veb
[veb_idx
]);
9320 * i40e_veb_clear - remove veb struct
9321 * @veb: the veb to remove
9323 static void i40e_veb_clear(struct i40e_veb
*veb
)
9329 struct i40e_pf
*pf
= veb
->pf
;
9331 mutex_lock(&pf
->switch_mutex
);
9332 if (pf
->veb
[veb
->idx
] == veb
)
9333 pf
->veb
[veb
->idx
] = NULL
;
9334 mutex_unlock(&pf
->switch_mutex
);
9341 * i40e_veb_release - Delete a VEB and free its resources
9342 * @veb: the VEB being removed
9344 void i40e_veb_release(struct i40e_veb
*veb
)
9346 struct i40e_vsi
*vsi
= NULL
;
9352 /* find the remaining VSI and check for extras */
9353 for (i
= 0; i
< pf
->num_alloc_vsi
; i
++) {
9354 if (pf
->vsi
[i
] && pf
->vsi
[i
]->uplink_seid
== veb
->seid
) {
9360 dev_info(&pf
->pdev
->dev
,
9361 "can't remove VEB %d with %d VSIs left\n",
9366 /* move the remaining VSI to uplink veb */
9367 vsi
->flags
&= ~I40E_VSI_FLAG_VEB_OWNER
;
9368 if (veb
->uplink_seid
) {
9369 vsi
->uplink_seid
= veb
->uplink_seid
;
9370 if (veb
->uplink_seid
== pf
->mac_seid
)
9371 vsi
->veb_idx
= I40E_NO_VEB
;
9373 vsi
->veb_idx
= veb
->veb_idx
;
9376 vsi
->uplink_seid
= pf
->vsi
[pf
->lan_vsi
]->uplink_seid
;
9377 vsi
->veb_idx
= pf
->vsi
[pf
->lan_vsi
]->veb_idx
;
9380 i40e_aq_delete_element(&pf
->hw
, veb
->seid
, NULL
);
9381 i40e_veb_clear(veb
);
9385 * i40e_add_veb - create the VEB in the switch
9386 * @veb: the VEB to be instantiated
9387 * @vsi: the controlling VSI
9389 static int i40e_add_veb(struct i40e_veb
*veb
, struct i40e_vsi
*vsi
)
9391 struct i40e_pf
*pf
= veb
->pf
;
9392 bool is_default
= veb
->pf
->cur_promisc
;
9393 bool is_cloud
= false;
9396 /* get a VEB from the hardware */
9397 ret
= i40e_aq_add_veb(&pf
->hw
, veb
->uplink_seid
, vsi
->seid
,
9398 veb
->enabled_tc
, is_default
,
9399 is_cloud
, &veb
->seid
, NULL
);
9401 dev_info(&pf
->pdev
->dev
,
9402 "couldn't add VEB, err %s aq_err %s\n",
9403 i40e_stat_str(&pf
->hw
, ret
),
9404 i40e_aq_str(&pf
->hw
, pf
->hw
.aq
.asq_last_status
));
9408 /* get statistics counter */
9409 ret
= i40e_aq_get_veb_parameters(&pf
->hw
, veb
->seid
, NULL
, NULL
,
9410 &veb
->stats_idx
, NULL
, NULL
, NULL
);
9412 dev_info(&pf
->pdev
->dev
,
9413 "couldn't get VEB statistics idx, err %s aq_err %s\n",
9414 i40e_stat_str(&pf
->hw
, ret
),
9415 i40e_aq_str(&pf
->hw
, pf
->hw
.aq
.asq_last_status
));
9418 ret
= i40e_veb_get_bw_info(veb
);
9420 dev_info(&pf
->pdev
->dev
,
9421 "couldn't get VEB bw info, err %s aq_err %s\n",
9422 i40e_stat_str(&pf
->hw
, ret
),
9423 i40e_aq_str(&pf
->hw
, pf
->hw
.aq
.asq_last_status
));
9424 i40e_aq_delete_element(&pf
->hw
, veb
->seid
, NULL
);
9428 vsi
->uplink_seid
= veb
->seid
;
9429 vsi
->veb_idx
= veb
->idx
;
9430 vsi
->flags
|= I40E_VSI_FLAG_VEB_OWNER
;
9436 * i40e_veb_setup - Set up a VEB
9437 * @pf: board private structure
9438 * @flags: VEB setup flags
9439 * @uplink_seid: the switch element to link to
9440 * @vsi_seid: the initial VSI seid
9441 * @enabled_tc: Enabled TC bit-map
9443 * This allocates the sw VEB structure and links it into the switch
9444 * It is possible and legal for this to be a duplicate of an already
9445 * existing VEB. It is also possible for both uplink and vsi seids
9446 * to be zero, in order to create a floating VEB.
9448 * Returns pointer to the successfully allocated VEB sw struct on
9449 * success, otherwise returns NULL on failure.
9451 struct i40e_veb
*i40e_veb_setup(struct i40e_pf
*pf
, u16 flags
,
9452 u16 uplink_seid
, u16 vsi_seid
,
9455 struct i40e_veb
*veb
, *uplink_veb
= NULL
;
9456 int vsi_idx
, veb_idx
;
9459 /* if one seid is 0, the other must be 0 to create a floating relay */
9460 if ((uplink_seid
== 0 || vsi_seid
== 0) &&
9461 (uplink_seid
+ vsi_seid
!= 0)) {
9462 dev_info(&pf
->pdev
->dev
,
9463 "one, not both seid's are 0: uplink=%d vsi=%d\n",
9464 uplink_seid
, vsi_seid
);
9468 /* make sure there is such a vsi and uplink */
9469 for (vsi_idx
= 0; vsi_idx
< pf
->num_alloc_vsi
; vsi_idx
++)
9470 if (pf
->vsi
[vsi_idx
] && pf
->vsi
[vsi_idx
]->seid
== vsi_seid
)
9472 if (vsi_idx
>= pf
->num_alloc_vsi
&& vsi_seid
!= 0) {
9473 dev_info(&pf
->pdev
->dev
, "vsi seid %d not found\n",
9478 if (uplink_seid
&& uplink_seid
!= pf
->mac_seid
) {
9479 for (veb_idx
= 0; veb_idx
< I40E_MAX_VEB
; veb_idx
++) {
9480 if (pf
->veb
[veb_idx
] &&
9481 pf
->veb
[veb_idx
]->seid
== uplink_seid
) {
9482 uplink_veb
= pf
->veb
[veb_idx
];
9487 dev_info(&pf
->pdev
->dev
,
9488 "uplink seid %d not found\n", uplink_seid
);
9493 /* get veb sw struct */
9494 veb_idx
= i40e_veb_mem_alloc(pf
);
9497 veb
= pf
->veb
[veb_idx
];
9499 veb
->uplink_seid
= uplink_seid
;
9500 veb
->veb_idx
= (uplink_veb
? uplink_veb
->idx
: I40E_NO_VEB
);
9501 veb
->enabled_tc
= (enabled_tc
? enabled_tc
: 0x1);
9503 /* create the VEB in the switch */
9504 ret
= i40e_add_veb(veb
, pf
->vsi
[vsi_idx
]);
9507 if (vsi_idx
== pf
->lan_vsi
)
9508 pf
->lan_veb
= veb
->idx
;
9513 i40e_veb_clear(veb
);
9519 * i40e_setup_pf_switch_element - set PF vars based on switch type
9520 * @pf: board private structure
9521 * @ele: element we are building info from
9522 * @num_reported: total number of elements
9523 * @printconfig: should we print the contents
9525 * helper function to assist in extracting a few useful SEID values.
9527 static void i40e_setup_pf_switch_element(struct i40e_pf
*pf
,
9528 struct i40e_aqc_switch_config_element_resp
*ele
,
9529 u16 num_reported
, bool printconfig
)
9531 u16 downlink_seid
= le16_to_cpu(ele
->downlink_seid
);
9532 u16 uplink_seid
= le16_to_cpu(ele
->uplink_seid
);
9533 u8 element_type
= ele
->element_type
;
9534 u16 seid
= le16_to_cpu(ele
->seid
);
9537 dev_info(&pf
->pdev
->dev
,
9538 "type=%d seid=%d uplink=%d downlink=%d\n",
9539 element_type
, seid
, uplink_seid
, downlink_seid
);
9541 switch (element_type
) {
9542 case I40E_SWITCH_ELEMENT_TYPE_MAC
:
9543 pf
->mac_seid
= seid
;
9545 case I40E_SWITCH_ELEMENT_TYPE_VEB
:
9547 if (uplink_seid
!= pf
->mac_seid
)
9549 if (pf
->lan_veb
== I40E_NO_VEB
) {
9552 /* find existing or else empty VEB */
9553 for (v
= 0; v
< I40E_MAX_VEB
; v
++) {
9554 if (pf
->veb
[v
] && (pf
->veb
[v
]->seid
== seid
)) {
9559 if (pf
->lan_veb
== I40E_NO_VEB
) {
9560 v
= i40e_veb_mem_alloc(pf
);
9567 pf
->veb
[pf
->lan_veb
]->seid
= seid
;
9568 pf
->veb
[pf
->lan_veb
]->uplink_seid
= pf
->mac_seid
;
9569 pf
->veb
[pf
->lan_veb
]->pf
= pf
;
9570 pf
->veb
[pf
->lan_veb
]->veb_idx
= I40E_NO_VEB
;
9572 case I40E_SWITCH_ELEMENT_TYPE_VSI
:
9573 if (num_reported
!= 1)
9575 /* This is immediately after a reset so we can assume this is
9578 pf
->mac_seid
= uplink_seid
;
9579 pf
->pf_seid
= downlink_seid
;
9580 pf
->main_vsi_seid
= seid
;
9582 dev_info(&pf
->pdev
->dev
,
9583 "pf_seid=%d main_vsi_seid=%d\n",
9584 pf
->pf_seid
, pf
->main_vsi_seid
);
9586 case I40E_SWITCH_ELEMENT_TYPE_PF
:
9587 case I40E_SWITCH_ELEMENT_TYPE_VF
:
9588 case I40E_SWITCH_ELEMENT_TYPE_EMP
:
9589 case I40E_SWITCH_ELEMENT_TYPE_BMC
:
9590 case I40E_SWITCH_ELEMENT_TYPE_PE
:
9591 case I40E_SWITCH_ELEMENT_TYPE_PA
:
9592 /* ignore these for now */
9595 dev_info(&pf
->pdev
->dev
, "unknown element type=%d seid=%d\n",
9596 element_type
, seid
);
9602 * i40e_fetch_switch_configuration - Get switch config from firmware
9603 * @pf: board private structure
9604 * @printconfig: should we print the contents
9606 * Get the current switch configuration from the device and
9607 * extract a few useful SEID values.
9609 int i40e_fetch_switch_configuration(struct i40e_pf
*pf
, bool printconfig
)
9611 struct i40e_aqc_get_switch_config_resp
*sw_config
;
9617 aq_buf
= kzalloc(I40E_AQ_LARGE_BUF
, GFP_KERNEL
);
9621 sw_config
= (struct i40e_aqc_get_switch_config_resp
*)aq_buf
;
9623 u16 num_reported
, num_total
;
9625 ret
= i40e_aq_get_switch_config(&pf
->hw
, sw_config
,
9629 dev_info(&pf
->pdev
->dev
,
9630 "get switch config failed err %s aq_err %s\n",
9631 i40e_stat_str(&pf
->hw
, ret
),
9632 i40e_aq_str(&pf
->hw
,
9633 pf
->hw
.aq
.asq_last_status
));
9638 num_reported
= le16_to_cpu(sw_config
->header
.num_reported
);
9639 num_total
= le16_to_cpu(sw_config
->header
.num_total
);
9642 dev_info(&pf
->pdev
->dev
,
9643 "header: %d reported %d total\n",
9644 num_reported
, num_total
);
9646 for (i
= 0; i
< num_reported
; i
++) {
9647 struct i40e_aqc_switch_config_element_resp
*ele
=
9648 &sw_config
->element
[i
];
9650 i40e_setup_pf_switch_element(pf
, ele
, num_reported
,
9653 } while (next_seid
!= 0);
9660 * i40e_setup_pf_switch - Setup the HW switch on startup or after reset
9661 * @pf: board private structure
9662 * @reinit: if the Main VSI needs to re-initialized.
9664 * Returns 0 on success, negative value on failure
9666 static int i40e_setup_pf_switch(struct i40e_pf
*pf
, bool reinit
)
9670 /* find out what's out there already */
9671 ret
= i40e_fetch_switch_configuration(pf
, false);
9673 dev_info(&pf
->pdev
->dev
,
9674 "couldn't fetch switch config, err %s aq_err %s\n",
9675 i40e_stat_str(&pf
->hw
, ret
),
9676 i40e_aq_str(&pf
->hw
, pf
->hw
.aq
.asq_last_status
));
9679 i40e_pf_reset_stats(pf
);
9681 /* first time setup */
9682 if (pf
->lan_vsi
== I40E_NO_VSI
|| reinit
) {
9683 struct i40e_vsi
*vsi
= NULL
;
9686 /* Set up the PF VSI associated with the PF's main VSI
9687 * that is already in the HW switch
9689 if (pf
->lan_veb
!= I40E_NO_VEB
&& pf
->veb
[pf
->lan_veb
])
9690 uplink_seid
= pf
->veb
[pf
->lan_veb
]->seid
;
9692 uplink_seid
= pf
->mac_seid
;
9693 if (pf
->lan_vsi
== I40E_NO_VSI
)
9694 vsi
= i40e_vsi_setup(pf
, I40E_VSI_MAIN
, uplink_seid
, 0);
9696 vsi
= i40e_vsi_reinit_setup(pf
->vsi
[pf
->lan_vsi
]);
9698 dev_info(&pf
->pdev
->dev
, "setup of MAIN VSI failed\n");
9699 i40e_fdir_teardown(pf
);
9703 /* force a reset of TC and queue layout configurations */
9704 u8 enabled_tc
= pf
->vsi
[pf
->lan_vsi
]->tc_config
.enabled_tc
;
9706 pf
->vsi
[pf
->lan_vsi
]->tc_config
.enabled_tc
= 0;
9707 pf
->vsi
[pf
->lan_vsi
]->seid
= pf
->main_vsi_seid
;
9708 i40e_vsi_config_tc(pf
->vsi
[pf
->lan_vsi
], enabled_tc
);
9710 i40e_vlan_stripping_disable(pf
->vsi
[pf
->lan_vsi
]);
9712 i40e_fdir_sb_setup(pf
);
9714 /* Setup static PF queue filter control settings */
9715 ret
= i40e_setup_pf_filter_control(pf
);
9717 dev_info(&pf
->pdev
->dev
, "setup_pf_filter_control failed: %d\n",
9719 /* Failure here should not stop continuing other steps */
9722 /* enable RSS in the HW, even for only one queue, as the stack can use
9725 if ((pf
->flags
& I40E_FLAG_RSS_ENABLED
))
9726 i40e_config_rss(pf
);
9728 /* fill in link information and enable LSE reporting */
9729 i40e_update_link_info(&pf
->hw
);
9730 i40e_link_event(pf
);
9732 /* Initialize user-specific link properties */
9733 pf
->fc_autoneg_status
= ((pf
->hw
.phy
.link_info
.an_info
&
9734 I40E_AQ_AN_COMPLETED
) ? true : false);
9742 * i40e_determine_queue_usage - Work out queue distribution
9743 * @pf: board private structure
9745 static void i40e_determine_queue_usage(struct i40e_pf
*pf
)
9749 pf
->num_lan_qps
= 0;
9751 pf
->num_fcoe_qps
= 0;
9754 /* Find the max queues to be put into basic use. We'll always be
9755 * using TC0, whether or not DCB is running, and TC0 will get the
9758 queues_left
= pf
->hw
.func_caps
.num_tx_qp
;
9760 if ((queues_left
== 1) ||
9761 !(pf
->flags
& I40E_FLAG_MSIX_ENABLED
)) {
9762 /* one qp for PF, no queues for anything else */
9764 pf
->rss_size
= pf
->num_lan_qps
= 1;
9766 /* make sure all the fancies are disabled */
9767 pf
->flags
&= ~(I40E_FLAG_RSS_ENABLED
|
9769 I40E_FLAG_FCOE_ENABLED
|
9771 I40E_FLAG_FD_SB_ENABLED
|
9772 I40E_FLAG_FD_ATR_ENABLED
|
9773 I40E_FLAG_DCB_CAPABLE
|
9774 I40E_FLAG_SRIOV_ENABLED
|
9775 I40E_FLAG_VMDQ_ENABLED
);
9776 } else if (!(pf
->flags
& (I40E_FLAG_RSS_ENABLED
|
9777 I40E_FLAG_FD_SB_ENABLED
|
9778 I40E_FLAG_FD_ATR_ENABLED
|
9779 I40E_FLAG_DCB_CAPABLE
))) {
9781 pf
->rss_size
= pf
->num_lan_qps
= 1;
9782 queues_left
-= pf
->num_lan_qps
;
9784 pf
->flags
&= ~(I40E_FLAG_RSS_ENABLED
|
9786 I40E_FLAG_FCOE_ENABLED
|
9788 I40E_FLAG_FD_SB_ENABLED
|
9789 I40E_FLAG_FD_ATR_ENABLED
|
9790 I40E_FLAG_DCB_ENABLED
|
9791 I40E_FLAG_VMDQ_ENABLED
);
9793 /* Not enough queues for all TCs */
9794 if ((pf
->flags
& I40E_FLAG_DCB_CAPABLE
) &&
9795 (queues_left
< I40E_MAX_TRAFFIC_CLASS
)) {
9796 pf
->flags
&= ~I40E_FLAG_DCB_CAPABLE
;
9797 dev_info(&pf
->pdev
->dev
, "not enough queues for DCB. DCB is disabled.\n");
9799 pf
->num_lan_qps
= max_t(int, pf
->rss_size_max
,
9801 pf
->num_lan_qps
= min_t(int, pf
->num_lan_qps
,
9802 pf
->hw
.func_caps
.num_tx_qp
);
9804 queues_left
-= pf
->num_lan_qps
;
9808 if (pf
->flags
& I40E_FLAG_FCOE_ENABLED
) {
9809 if (I40E_DEFAULT_FCOE
<= queues_left
) {
9810 pf
->num_fcoe_qps
= I40E_DEFAULT_FCOE
;
9811 } else if (I40E_MINIMUM_FCOE
<= queues_left
) {
9812 pf
->num_fcoe_qps
= I40E_MINIMUM_FCOE
;
9814 pf
->num_fcoe_qps
= 0;
9815 pf
->flags
&= ~I40E_FLAG_FCOE_ENABLED
;
9816 dev_info(&pf
->pdev
->dev
, "not enough queues for FCoE. FCoE feature will be disabled\n");
9819 queues_left
-= pf
->num_fcoe_qps
;
9823 if (pf
->flags
& I40E_FLAG_FD_SB_ENABLED
) {
9824 if (queues_left
> 1) {
9825 queues_left
-= 1; /* save 1 queue for FD */
9827 pf
->flags
&= ~I40E_FLAG_FD_SB_ENABLED
;
9828 dev_info(&pf
->pdev
->dev
, "not enough queues for Flow Director. Flow Director feature is disabled\n");
9832 if ((pf
->flags
& I40E_FLAG_SRIOV_ENABLED
) &&
9833 pf
->num_vf_qps
&& pf
->num_req_vfs
&& queues_left
) {
9834 pf
->num_req_vfs
= min_t(int, pf
->num_req_vfs
,
9835 (queues_left
/ pf
->num_vf_qps
));
9836 queues_left
-= (pf
->num_req_vfs
* pf
->num_vf_qps
);
9839 if ((pf
->flags
& I40E_FLAG_VMDQ_ENABLED
) &&
9840 pf
->num_vmdq_vsis
&& pf
->num_vmdq_qps
&& queues_left
) {
9841 pf
->num_vmdq_vsis
= min_t(int, pf
->num_vmdq_vsis
,
9842 (queues_left
/ pf
->num_vmdq_qps
));
9843 queues_left
-= (pf
->num_vmdq_vsis
* pf
->num_vmdq_qps
);
9846 pf
->queues_left
= queues_left
;
9847 dev_dbg(&pf
->pdev
->dev
,
9848 "qs_avail=%d FD SB=%d lan_qs=%d lan_tc0=%d vf=%d*%d vmdq=%d*%d, remaining=%d\n",
9849 pf
->hw
.func_caps
.num_tx_qp
,
9850 !!(pf
->flags
& I40E_FLAG_FD_SB_ENABLED
),
9851 pf
->num_lan_qps
, pf
->rss_size
, pf
->num_req_vfs
, pf
->num_vf_qps
,
9852 pf
->num_vmdq_vsis
, pf
->num_vmdq_qps
, queues_left
);
9854 dev_dbg(&pf
->pdev
->dev
, "fcoe queues = %d\n", pf
->num_fcoe_qps
);
9859 * i40e_setup_pf_filter_control - Setup PF static filter control
9860 * @pf: PF to be setup
9862 * i40e_setup_pf_filter_control sets up a PF's initial filter control
9863 * settings. If PE/FCoE are enabled then it will also set the per PF
9864 * based filter sizes required for them. It also enables Flow director,
9865 * ethertype and macvlan type filter settings for the pf.
9867 * Returns 0 on success, negative on failure
9869 static int i40e_setup_pf_filter_control(struct i40e_pf
*pf
)
9871 struct i40e_filter_control_settings
*settings
= &pf
->filter_settings
;
9873 settings
->hash_lut_size
= I40E_HASH_LUT_SIZE_128
;
9875 /* Flow Director is enabled */
9876 if (pf
->flags
& (I40E_FLAG_FD_SB_ENABLED
| I40E_FLAG_FD_ATR_ENABLED
))
9877 settings
->enable_fdir
= true;
9879 /* Ethtype and MACVLAN filters enabled for PF */
9880 settings
->enable_ethtype
= true;
9881 settings
->enable_macvlan
= true;
9883 if (i40e_set_filter_control(&pf
->hw
, settings
))
9889 #define INFO_STRING_LEN 255
9890 static void i40e_print_features(struct i40e_pf
*pf
)
9892 struct i40e_hw
*hw
= &pf
->hw
;
9895 string
= kzalloc(INFO_STRING_LEN
, GFP_KERNEL
);
9897 dev_err(&pf
->pdev
->dev
, "Features string allocation failed\n");
9903 buf
+= sprintf(string
, "Features: PF-id[%d] ", hw
->pf_id
);
9904 #ifdef CONFIG_PCI_IOV
9905 buf
+= sprintf(buf
, "VFs: %d ", pf
->num_req_vfs
);
9907 buf
+= sprintf(buf
, "VSIs: %d QP: %d RX: %s ",
9908 pf
->hw
.func_caps
.num_vsis
,
9909 pf
->vsi
[pf
->lan_vsi
]->num_queue_pairs
,
9910 pf
->flags
& I40E_FLAG_RX_PS_ENABLED
? "PS" : "1BUF");
9912 if (pf
->flags
& I40E_FLAG_RSS_ENABLED
)
9913 buf
+= sprintf(buf
, "RSS ");
9914 if (pf
->flags
& I40E_FLAG_FD_ATR_ENABLED
)
9915 buf
+= sprintf(buf
, "FD_ATR ");
9916 if (pf
->flags
& I40E_FLAG_FD_SB_ENABLED
) {
9917 buf
+= sprintf(buf
, "FD_SB ");
9918 buf
+= sprintf(buf
, "NTUPLE ");
9920 if (pf
->flags
& I40E_FLAG_DCB_CAPABLE
)
9921 buf
+= sprintf(buf
, "DCB ");
9922 #if IS_ENABLED(CONFIG_VXLAN)
9923 buf
+= sprintf(buf
, "VxLAN ");
9925 if (pf
->flags
& I40E_FLAG_PTP
)
9926 buf
+= sprintf(buf
, "PTP ");
9928 if (pf
->flags
& I40E_FLAG_FCOE_ENABLED
)
9929 buf
+= sprintf(buf
, "FCOE ");
9931 if (pf
->flags
& I40E_FLAG_VEB_MODE_ENABLED
)
9932 buf
+= sprintf(buf
, "VEB ");
9934 buf
+= sprintf(buf
, "VEPA ");
9936 BUG_ON(buf
> (string
+ INFO_STRING_LEN
));
9937 dev_info(&pf
->pdev
->dev
, "%s\n", string
);
9942 * i40e_probe - Device initialization routine
9943 * @pdev: PCI device information struct
9944 * @ent: entry in i40e_pci_tbl
9946 * i40e_probe initializes a PF identified by a pci_dev structure.
9947 * The OS initialization, configuring of the PF private structure,
9948 * and a hardware reset occur.
9950 * Returns 0 on success, negative on failure
9952 static int i40e_probe(struct pci_dev
*pdev
, const struct pci_device_id
*ent
)
9954 struct i40e_aq_get_phy_abilities_resp abilities
;
9957 static u16 pfs_found
;
9964 err
= pci_enable_device_mem(pdev
);
9968 /* set up for high or low dma */
9969 err
= dma_set_mask_and_coherent(&pdev
->dev
, DMA_BIT_MASK(64));
9971 err
= dma_set_mask_and_coherent(&pdev
->dev
, DMA_BIT_MASK(32));
9974 "DMA configuration failed: 0x%x\n", err
);
9979 /* set up pci connections */
9980 err
= pci_request_selected_regions(pdev
, pci_select_bars(pdev
,
9981 IORESOURCE_MEM
), i40e_driver_name
);
9983 dev_info(&pdev
->dev
,
9984 "pci_request_selected_regions failed %d\n", err
);
9988 pci_enable_pcie_error_reporting(pdev
);
9989 pci_set_master(pdev
);
9991 /* Now that we have a PCI connection, we need to do the
9992 * low level device setup. This is primarily setting up
9993 * the Admin Queue structures and then querying for the
9994 * device's current profile information.
9996 pf
= kzalloc(sizeof(*pf
), GFP_KERNEL
);
10003 set_bit(__I40E_DOWN
, &pf
->state
);
10008 pf
->ioremap_len
= min_t(int, pci_resource_len(pdev
, 0),
10009 I40E_MAX_CSR_SPACE
);
10011 hw
->hw_addr
= ioremap(pci_resource_start(pdev
, 0), pf
->ioremap_len
);
10012 if (!hw
->hw_addr
) {
10014 dev_info(&pdev
->dev
, "ioremap(0x%04x, 0x%04x) failed: 0x%x\n",
10015 (unsigned int)pci_resource_start(pdev
, 0),
10016 pf
->ioremap_len
, err
);
10019 hw
->vendor_id
= pdev
->vendor
;
10020 hw
->device_id
= pdev
->device
;
10021 pci_read_config_byte(pdev
, PCI_REVISION_ID
, &hw
->revision_id
);
10022 hw
->subsystem_vendor_id
= pdev
->subsystem_vendor
;
10023 hw
->subsystem_device_id
= pdev
->subsystem_device
;
10024 hw
->bus
.device
= PCI_SLOT(pdev
->devfn
);
10025 hw
->bus
.func
= PCI_FUNC(pdev
->devfn
);
10026 pf
->instance
= pfs_found
;
10029 pf
->msg_enable
= pf
->hw
.debug_mask
;
10030 pf
->msg_enable
= debug
;
10033 /* do a special CORER for clearing PXE mode once at init */
10034 if (hw
->revision_id
== 0 &&
10035 (rd32(hw
, I40E_GLLAN_RCTL_0
) & I40E_GLLAN_RCTL_0_PXE_MODE_MASK
)) {
10036 wr32(hw
, I40E_GLGEN_RTRIG
, I40E_GLGEN_RTRIG_CORER_MASK
);
10041 i40e_clear_pxe_mode(hw
);
10044 /* Reset here to make sure all is clean and to define PF 'n' */
10046 err
= i40e_pf_reset(hw
);
10048 dev_info(&pdev
->dev
, "Initial pf_reset failed: %d\n", err
);
10053 hw
->aq
.num_arq_entries
= I40E_AQ_LEN
;
10054 hw
->aq
.num_asq_entries
= I40E_AQ_LEN
;
10055 hw
->aq
.arq_buf_size
= I40E_MAX_AQ_BUF_SIZE
;
10056 hw
->aq
.asq_buf_size
= I40E_MAX_AQ_BUF_SIZE
;
10057 pf
->adminq_work_limit
= I40E_AQ_WORK_LIMIT
;
10059 snprintf(pf
->int_name
, sizeof(pf
->int_name
) - 1,
10061 dev_driver_string(&pf
->pdev
->dev
), dev_name(&pdev
->dev
));
10063 err
= i40e_init_shared_code(hw
);
10065 dev_warn(&pdev
->dev
, "unidentified MAC or BLANK NVM: %d\n",
10070 /* set up a default setting for link flow control */
10071 pf
->hw
.fc
.requested_mode
= I40E_FC_NONE
;
10073 err
= i40e_init_adminq(hw
);
10075 /* provide nvm, fw, api versions */
10076 dev_info(&pdev
->dev
, "fw %d.%d.%05d api %d.%d nvm %s\n",
10077 hw
->aq
.fw_maj_ver
, hw
->aq
.fw_min_ver
, hw
->aq
.fw_build
,
10078 hw
->aq
.api_maj_ver
, hw
->aq
.api_min_ver
,
10079 i40e_nvm_version_str(hw
));
10082 dev_info(&pdev
->dev
,
10083 "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");
10087 if (hw
->aq
.api_maj_ver
== I40E_FW_API_VERSION_MAJOR
&&
10088 hw
->aq
.api_min_ver
> I40E_FW_API_VERSION_MINOR
)
10089 dev_info(&pdev
->dev
,
10090 "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");
10091 else if (hw
->aq
.api_maj_ver
< I40E_FW_API_VERSION_MAJOR
||
10092 hw
->aq
.api_min_ver
< (I40E_FW_API_VERSION_MINOR
- 1))
10093 dev_info(&pdev
->dev
,
10094 "The driver for the device detected an older version of the NVM image than expected. Please update the NVM image.\n");
10096 i40e_verify_eeprom(pf
);
10098 /* Rev 0 hardware was never productized */
10099 if (hw
->revision_id
< 1)
10100 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");
10102 i40e_clear_pxe_mode(hw
);
10103 err
= i40e_get_capabilities(pf
);
10105 goto err_adminq_setup
;
10107 err
= i40e_sw_init(pf
);
10109 dev_info(&pdev
->dev
, "sw_init failed: %d\n", err
);
10113 err
= i40e_init_lan_hmc(hw
, hw
->func_caps
.num_tx_qp
,
10114 hw
->func_caps
.num_rx_qp
,
10115 pf
->fcoe_hmc_cntx_num
, pf
->fcoe_hmc_filt_num
);
10117 dev_info(&pdev
->dev
, "init_lan_hmc failed: %d\n", err
);
10118 goto err_init_lan_hmc
;
10121 err
= i40e_configure_lan_hmc(hw
, I40E_HMC_MODEL_DIRECT_ONLY
);
10123 dev_info(&pdev
->dev
, "configure_lan_hmc failed: %d\n", err
);
10125 goto err_configure_lan_hmc
;
10128 /* Disable LLDP for NICs that have firmware versions lower than v4.3.
10129 * Ignore error return codes because if it was already disabled via
10130 * hardware settings this will fail
10132 if (((pf
->hw
.aq
.fw_maj_ver
== 4) && (pf
->hw
.aq
.fw_min_ver
< 3)) ||
10133 (pf
->hw
.aq
.fw_maj_ver
< 4)) {
10134 dev_info(&pdev
->dev
, "Stopping firmware LLDP agent.\n");
10135 i40e_aq_stop_lldp(hw
, true, NULL
);
10138 i40e_get_mac_addr(hw
, hw
->mac
.addr
);
10139 if (!is_valid_ether_addr(hw
->mac
.addr
)) {
10140 dev_info(&pdev
->dev
, "invalid MAC address %pM\n", hw
->mac
.addr
);
10144 dev_info(&pdev
->dev
, "MAC address: %pM\n", hw
->mac
.addr
);
10145 ether_addr_copy(hw
->mac
.perm_addr
, hw
->mac
.addr
);
10146 i40e_get_port_mac_addr(hw
, hw
->mac
.port_addr
);
10147 if (is_valid_ether_addr(hw
->mac
.port_addr
))
10148 pf
->flags
|= I40E_FLAG_PORT_ID_VALID
;
10150 err
= i40e_get_san_mac_addr(hw
, hw
->mac
.san_addr
);
10152 dev_info(&pdev
->dev
,
10153 "(non-fatal) SAN MAC retrieval failed: %d\n", err
);
10154 if (!is_valid_ether_addr(hw
->mac
.san_addr
)) {
10155 dev_warn(&pdev
->dev
, "invalid SAN MAC address %pM, falling back to LAN MAC\n",
10157 ether_addr_copy(hw
->mac
.san_addr
, hw
->mac
.addr
);
10159 dev_info(&pf
->pdev
->dev
, "SAN MAC: %pM\n", hw
->mac
.san_addr
);
10160 #endif /* I40E_FCOE */
10162 pci_set_drvdata(pdev
, pf
);
10163 pci_save_state(pdev
);
10164 #ifdef CONFIG_I40E_DCB
10165 err
= i40e_init_pf_dcb(pf
);
10167 dev_info(&pdev
->dev
, "DCB init failed %d, disabled\n", err
);
10168 pf
->flags
&= ~I40E_FLAG_DCB_CAPABLE
;
10169 /* Continue without DCB enabled */
10171 #endif /* CONFIG_I40E_DCB */
10173 /* set up periodic task facility */
10174 setup_timer(&pf
->service_timer
, i40e_service_timer
, (unsigned long)pf
);
10175 pf
->service_timer_period
= HZ
;
10177 INIT_WORK(&pf
->service_task
, i40e_service_task
);
10178 clear_bit(__I40E_SERVICE_SCHED
, &pf
->state
);
10179 pf
->flags
|= I40E_FLAG_NEED_LINK_UPDATE
;
10181 /* NVM bit on means WoL disabled for the port */
10182 i40e_read_nvm_word(hw
, I40E_SR_NVM_WAKE_ON_LAN
, &wol_nvm_bits
);
10183 if ((1 << hw
->port
) & wol_nvm_bits
|| hw
->partition_id
!= 1)
10184 pf
->wol_en
= false;
10187 device_set_wakeup_enable(&pf
->pdev
->dev
, pf
->wol_en
);
10189 /* set up the main switch operations */
10190 i40e_determine_queue_usage(pf
);
10191 err
= i40e_init_interrupt_scheme(pf
);
10193 goto err_switch_setup
;
10195 /* The number of VSIs reported by the FW is the minimum guaranteed
10196 * to us; HW supports far more and we share the remaining pool with
10197 * the other PFs. We allocate space for more than the guarantee with
10198 * the understanding that we might not get them all later.
10200 if (pf
->hw
.func_caps
.num_vsis
< I40E_MIN_VSI_ALLOC
)
10201 pf
->num_alloc_vsi
= I40E_MIN_VSI_ALLOC
;
10203 pf
->num_alloc_vsi
= pf
->hw
.func_caps
.num_vsis
;
10205 /* Set up the *vsi struct and our local tracking of the MAIN PF vsi. */
10206 len
= sizeof(struct i40e_vsi
*) * pf
->num_alloc_vsi
;
10207 pf
->vsi
= kzalloc(len
, GFP_KERNEL
);
10210 goto err_switch_setup
;
10213 #ifdef CONFIG_PCI_IOV
10214 /* prep for VF support */
10215 if ((pf
->flags
& I40E_FLAG_SRIOV_ENABLED
) &&
10216 (pf
->flags
& I40E_FLAG_MSIX_ENABLED
) &&
10217 !test_bit(__I40E_BAD_EEPROM
, &pf
->state
)) {
10218 if (pci_num_vf(pdev
))
10219 pf
->flags
|= I40E_FLAG_VEB_MODE_ENABLED
;
10222 err
= i40e_setup_pf_switch(pf
, false);
10224 dev_info(&pdev
->dev
, "setup_pf_switch failed: %d\n", err
);
10227 /* if FDIR VSI was set up, start it now */
10228 for (i
= 0; i
< pf
->num_alloc_vsi
; i
++) {
10229 if (pf
->vsi
[i
] && pf
->vsi
[i
]->type
== I40E_VSI_FDIR
) {
10230 i40e_vsi_open(pf
->vsi
[i
]);
10235 /* driver is only interested in link up/down and module qualification
10236 * reports from firmware
10238 err
= i40e_aq_set_phy_int_mask(&pf
->hw
,
10239 I40E_AQ_EVENT_LINK_UPDOWN
|
10240 I40E_AQ_EVENT_MODULE_QUAL_FAIL
, NULL
);
10242 dev_info(&pf
->pdev
->dev
, "set phy mask fail, err %s aq_err %s\n",
10243 i40e_stat_str(&pf
->hw
, err
),
10244 i40e_aq_str(&pf
->hw
, pf
->hw
.aq
.asq_last_status
));
10246 if (((pf
->hw
.aq
.fw_maj_ver
== 4) && (pf
->hw
.aq
.fw_min_ver
< 33)) ||
10247 (pf
->hw
.aq
.fw_maj_ver
< 4)) {
10249 err
= i40e_aq_set_link_restart_an(&pf
->hw
, true, NULL
);
10251 dev_info(&pf
->pdev
->dev
, "link restart failed, err %s aq_err %s\n",
10252 i40e_stat_str(&pf
->hw
, err
),
10253 i40e_aq_str(&pf
->hw
,
10254 pf
->hw
.aq
.asq_last_status
));
10256 /* The main driver is (mostly) up and happy. We need to set this state
10257 * before setting up the misc vector or we get a race and the vector
10258 * ends up disabled forever.
10260 clear_bit(__I40E_DOWN
, &pf
->state
);
10262 /* In case of MSIX we are going to setup the misc vector right here
10263 * to handle admin queue events etc. In case of legacy and MSI
10264 * the misc functionality and queue processing is combined in
10265 * the same vector and that gets setup at open.
10267 if (pf
->flags
& I40E_FLAG_MSIX_ENABLED
) {
10268 err
= i40e_setup_misc_vector(pf
);
10270 dev_info(&pdev
->dev
,
10271 "setup of misc vector failed: %d\n", err
);
10276 #ifdef CONFIG_PCI_IOV
10277 /* prep for VF support */
10278 if ((pf
->flags
& I40E_FLAG_SRIOV_ENABLED
) &&
10279 (pf
->flags
& I40E_FLAG_MSIX_ENABLED
) &&
10280 !test_bit(__I40E_BAD_EEPROM
, &pf
->state
)) {
10283 /* disable link interrupts for VFs */
10284 val
= rd32(hw
, I40E_PFGEN_PORTMDIO_NUM
);
10285 val
&= ~I40E_PFGEN_PORTMDIO_NUM_VFLINK_STAT_ENA_MASK
;
10286 wr32(hw
, I40E_PFGEN_PORTMDIO_NUM
, val
);
10289 if (pci_num_vf(pdev
)) {
10290 dev_info(&pdev
->dev
,
10291 "Active VFs found, allocating resources.\n");
10292 err
= i40e_alloc_vfs(pf
, pci_num_vf(pdev
));
10294 dev_info(&pdev
->dev
,
10295 "Error %d allocating resources for existing VFs\n",
10299 #endif /* CONFIG_PCI_IOV */
10303 i40e_dbg_pf_init(pf
);
10305 /* tell the firmware that we're starting */
10306 i40e_send_version(pf
);
10308 /* since everything's happy, start the service_task timer */
10309 mod_timer(&pf
->service_timer
,
10310 round_jiffies(jiffies
+ pf
->service_timer_period
));
10313 /* create FCoE interface */
10314 i40e_fcoe_vsi_setup(pf
);
10317 #define PCI_SPEED_SIZE 8
10318 #define PCI_WIDTH_SIZE 8
10319 /* Devices on the IOSF bus do not have this information
10320 * and will report PCI Gen 1 x 1 by default so don't bother
10323 if (!(pf
->flags
& I40E_FLAG_NO_PCI_LINK_CHECK
)) {
10324 char speed
[PCI_SPEED_SIZE
] = "Unknown";
10325 char width
[PCI_WIDTH_SIZE
] = "Unknown";
10327 /* Get the negotiated link width and speed from PCI config
10330 pcie_capability_read_word(pf
->pdev
, PCI_EXP_LNKSTA
,
10333 i40e_set_pci_config_data(hw
, link_status
);
10335 switch (hw
->bus
.speed
) {
10336 case i40e_bus_speed_8000
:
10337 strncpy(speed
, "8.0", PCI_SPEED_SIZE
); break;
10338 case i40e_bus_speed_5000
:
10339 strncpy(speed
, "5.0", PCI_SPEED_SIZE
); break;
10340 case i40e_bus_speed_2500
:
10341 strncpy(speed
, "2.5", PCI_SPEED_SIZE
); break;
10345 switch (hw
->bus
.width
) {
10346 case i40e_bus_width_pcie_x8
:
10347 strncpy(width
, "8", PCI_WIDTH_SIZE
); break;
10348 case i40e_bus_width_pcie_x4
:
10349 strncpy(width
, "4", PCI_WIDTH_SIZE
); break;
10350 case i40e_bus_width_pcie_x2
:
10351 strncpy(width
, "2", PCI_WIDTH_SIZE
); break;
10352 case i40e_bus_width_pcie_x1
:
10353 strncpy(width
, "1", PCI_WIDTH_SIZE
); break;
10358 dev_info(&pdev
->dev
, "PCI-Express: Speed %sGT/s Width x%s\n",
10361 if (hw
->bus
.width
< i40e_bus_width_pcie_x8
||
10362 hw
->bus
.speed
< i40e_bus_speed_8000
) {
10363 dev_warn(&pdev
->dev
, "PCI-Express bandwidth available for this device may be insufficient for optimal performance.\n");
10364 dev_warn(&pdev
->dev
, "Please move the device to a different PCI-e link with more lanes and/or higher transfer rate.\n");
10368 /* get the requested speeds from the fw */
10369 err
= i40e_aq_get_phy_capabilities(hw
, false, false, &abilities
, NULL
);
10371 dev_dbg(&pf
->pdev
->dev
, "get requested speeds ret = %s last_status = %s\n",
10372 i40e_stat_str(&pf
->hw
, err
),
10373 i40e_aq_str(&pf
->hw
, pf
->hw
.aq
.asq_last_status
));
10374 pf
->hw
.phy
.link_info
.requested_speeds
= abilities
.link_speed
;
10376 /* get the supported phy types from the fw */
10377 err
= i40e_aq_get_phy_capabilities(hw
, false, true, &abilities
, NULL
);
10379 dev_dbg(&pf
->pdev
->dev
, "get supported phy types ret = %s last_status = %s\n",
10380 i40e_stat_str(&pf
->hw
, err
),
10381 i40e_aq_str(&pf
->hw
, pf
->hw
.aq
.asq_last_status
));
10382 pf
->hw
.phy
.phy_types
= le32_to_cpu(abilities
.phy_type
);
10384 /* print a string summarizing features */
10385 i40e_print_features(pf
);
10389 /* Unwind what we've done if something failed in the setup */
10391 set_bit(__I40E_DOWN
, &pf
->state
);
10392 i40e_clear_interrupt_scheme(pf
);
10395 i40e_reset_interrupt_capability(pf
);
10396 del_timer_sync(&pf
->service_timer
);
10398 err_configure_lan_hmc
:
10399 (void)i40e_shutdown_lan_hmc(hw
);
10401 kfree(pf
->qp_pile
);
10404 (void)i40e_shutdown_adminq(hw
);
10406 iounmap(hw
->hw_addr
);
10410 pci_disable_pcie_error_reporting(pdev
);
10411 pci_release_selected_regions(pdev
,
10412 pci_select_bars(pdev
, IORESOURCE_MEM
));
10415 pci_disable_device(pdev
);
10420 * i40e_remove - Device removal routine
10421 * @pdev: PCI device information struct
10423 * i40e_remove is called by the PCI subsystem to alert the driver
10424 * that is should release a PCI device. This could be caused by a
10425 * Hot-Plug event, or because the driver is going to be removed from
10428 static void i40e_remove(struct pci_dev
*pdev
)
10430 struct i40e_pf
*pf
= pci_get_drvdata(pdev
);
10431 i40e_status ret_code
;
10434 i40e_dbg_pf_exit(pf
);
10438 /* no more scheduling of any task */
10439 set_bit(__I40E_DOWN
, &pf
->state
);
10440 del_timer_sync(&pf
->service_timer
);
10441 cancel_work_sync(&pf
->service_task
);
10442 i40e_fdir_teardown(pf
);
10444 if (pf
->flags
& I40E_FLAG_SRIOV_ENABLED
) {
10446 pf
->flags
&= ~I40E_FLAG_SRIOV_ENABLED
;
10449 i40e_fdir_teardown(pf
);
10451 /* If there is a switch structure or any orphans, remove them.
10452 * This will leave only the PF's VSI remaining.
10454 for (i
= 0; i
< I40E_MAX_VEB
; i
++) {
10458 if (pf
->veb
[i
]->uplink_seid
== pf
->mac_seid
||
10459 pf
->veb
[i
]->uplink_seid
== 0)
10460 i40e_switch_branch_release(pf
->veb
[i
]);
10463 /* Now we can shutdown the PF's VSI, just before we kill
10466 if (pf
->vsi
[pf
->lan_vsi
])
10467 i40e_vsi_release(pf
->vsi
[pf
->lan_vsi
]);
10469 /* shutdown and destroy the HMC */
10470 if (pf
->hw
.hmc
.hmc_obj
) {
10471 ret_code
= i40e_shutdown_lan_hmc(&pf
->hw
);
10473 dev_warn(&pdev
->dev
,
10474 "Failed to destroy the HMC resources: %d\n",
10478 /* shutdown the adminq */
10479 ret_code
= i40e_shutdown_adminq(&pf
->hw
);
10481 dev_warn(&pdev
->dev
,
10482 "Failed to destroy the Admin Queue resources: %d\n",
10485 /* Clear all dynamic memory lists of rings, q_vectors, and VSIs */
10486 i40e_clear_interrupt_scheme(pf
);
10487 for (i
= 0; i
< pf
->num_alloc_vsi
; i
++) {
10489 i40e_vsi_clear_rings(pf
->vsi
[i
]);
10490 i40e_vsi_clear(pf
->vsi
[i
]);
10495 for (i
= 0; i
< I40E_MAX_VEB
; i
++) {
10500 kfree(pf
->qp_pile
);
10503 iounmap(pf
->hw
.hw_addr
);
10505 pci_release_selected_regions(pdev
,
10506 pci_select_bars(pdev
, IORESOURCE_MEM
));
10508 pci_disable_pcie_error_reporting(pdev
);
10509 pci_disable_device(pdev
);
10513 * i40e_pci_error_detected - warning that something funky happened in PCI land
10514 * @pdev: PCI device information struct
10516 * Called to warn that something happened and the error handling steps
10517 * are in progress. Allows the driver to quiesce things, be ready for
10520 static pci_ers_result_t
i40e_pci_error_detected(struct pci_dev
*pdev
,
10521 enum pci_channel_state error
)
10523 struct i40e_pf
*pf
= pci_get_drvdata(pdev
);
10525 dev_info(&pdev
->dev
, "%s: error %d\n", __func__
, error
);
10527 /* shutdown all operations */
10528 if (!test_bit(__I40E_SUSPENDED
, &pf
->state
)) {
10530 i40e_prep_for_reset(pf
);
10534 /* Request a slot reset */
10535 return PCI_ERS_RESULT_NEED_RESET
;
10539 * i40e_pci_error_slot_reset - a PCI slot reset just happened
10540 * @pdev: PCI device information struct
10542 * Called to find if the driver can work with the device now that
10543 * the pci slot has been reset. If a basic connection seems good
10544 * (registers are readable and have sane content) then return a
10545 * happy little PCI_ERS_RESULT_xxx.
10547 static pci_ers_result_t
i40e_pci_error_slot_reset(struct pci_dev
*pdev
)
10549 struct i40e_pf
*pf
= pci_get_drvdata(pdev
);
10550 pci_ers_result_t result
;
10554 dev_dbg(&pdev
->dev
, "%s\n", __func__
);
10555 if (pci_enable_device_mem(pdev
)) {
10556 dev_info(&pdev
->dev
,
10557 "Cannot re-enable PCI device after reset.\n");
10558 result
= PCI_ERS_RESULT_DISCONNECT
;
10560 pci_set_master(pdev
);
10561 pci_restore_state(pdev
);
10562 pci_save_state(pdev
);
10563 pci_wake_from_d3(pdev
, false);
10565 reg
= rd32(&pf
->hw
, I40E_GLGEN_RTRIG
);
10567 result
= PCI_ERS_RESULT_RECOVERED
;
10569 result
= PCI_ERS_RESULT_DISCONNECT
;
10572 err
= pci_cleanup_aer_uncorrect_error_status(pdev
);
10574 dev_info(&pdev
->dev
,
10575 "pci_cleanup_aer_uncorrect_error_status failed 0x%0x\n",
10577 /* non-fatal, continue */
10584 * i40e_pci_error_resume - restart operations after PCI error recovery
10585 * @pdev: PCI device information struct
10587 * Called to allow the driver to bring things back up after PCI error
10588 * and/or reset recovery has finished.
10590 static void i40e_pci_error_resume(struct pci_dev
*pdev
)
10592 struct i40e_pf
*pf
= pci_get_drvdata(pdev
);
10594 dev_dbg(&pdev
->dev
, "%s\n", __func__
);
10595 if (test_bit(__I40E_SUSPENDED
, &pf
->state
))
10599 i40e_handle_reset_warning(pf
);
10604 * i40e_shutdown - PCI callback for shutting down
10605 * @pdev: PCI device information struct
10607 static void i40e_shutdown(struct pci_dev
*pdev
)
10609 struct i40e_pf
*pf
= pci_get_drvdata(pdev
);
10610 struct i40e_hw
*hw
= &pf
->hw
;
10612 set_bit(__I40E_SUSPENDED
, &pf
->state
);
10613 set_bit(__I40E_DOWN
, &pf
->state
);
10615 i40e_prep_for_reset(pf
);
10618 wr32(hw
, I40E_PFPM_APM
, (pf
->wol_en
? I40E_PFPM_APM_APME_MASK
: 0));
10619 wr32(hw
, I40E_PFPM_WUFC
, (pf
->wol_en
? I40E_PFPM_WUFC_MAG_MASK
: 0));
10621 del_timer_sync(&pf
->service_timer
);
10622 cancel_work_sync(&pf
->service_task
);
10623 i40e_fdir_teardown(pf
);
10626 i40e_prep_for_reset(pf
);
10629 wr32(hw
, I40E_PFPM_APM
,
10630 (pf
->wol_en
? I40E_PFPM_APM_APME_MASK
: 0));
10631 wr32(hw
, I40E_PFPM_WUFC
,
10632 (pf
->wol_en
? I40E_PFPM_WUFC_MAG_MASK
: 0));
10634 i40e_clear_interrupt_scheme(pf
);
10636 if (system_state
== SYSTEM_POWER_OFF
) {
10637 pci_wake_from_d3(pdev
, pf
->wol_en
);
10638 pci_set_power_state(pdev
, PCI_D3hot
);
10644 * i40e_suspend - PCI callback for moving to D3
10645 * @pdev: PCI device information struct
10647 static int i40e_suspend(struct pci_dev
*pdev
, pm_message_t state
)
10649 struct i40e_pf
*pf
= pci_get_drvdata(pdev
);
10650 struct i40e_hw
*hw
= &pf
->hw
;
10652 set_bit(__I40E_SUSPENDED
, &pf
->state
);
10653 set_bit(__I40E_DOWN
, &pf
->state
);
10656 i40e_prep_for_reset(pf
);
10659 wr32(hw
, I40E_PFPM_APM
, (pf
->wol_en
? I40E_PFPM_APM_APME_MASK
: 0));
10660 wr32(hw
, I40E_PFPM_WUFC
, (pf
->wol_en
? I40E_PFPM_WUFC_MAG_MASK
: 0));
10662 pci_wake_from_d3(pdev
, pf
->wol_en
);
10663 pci_set_power_state(pdev
, PCI_D3hot
);
10669 * i40e_resume - PCI callback for waking up from D3
10670 * @pdev: PCI device information struct
10672 static int i40e_resume(struct pci_dev
*pdev
)
10674 struct i40e_pf
*pf
= pci_get_drvdata(pdev
);
10677 pci_set_power_state(pdev
, PCI_D0
);
10678 pci_restore_state(pdev
);
10679 /* pci_restore_state() clears dev->state_saves, so
10680 * call pci_save_state() again to restore it.
10682 pci_save_state(pdev
);
10684 err
= pci_enable_device_mem(pdev
);
10686 dev_err(&pdev
->dev
, "Cannot enable PCI device from suspend\n");
10689 pci_set_master(pdev
);
10691 /* no wakeup events while running */
10692 pci_wake_from_d3(pdev
, false);
10694 /* handling the reset will rebuild the device state */
10695 if (test_and_clear_bit(__I40E_SUSPENDED
, &pf
->state
)) {
10696 clear_bit(__I40E_DOWN
, &pf
->state
);
10698 i40e_reset_and_rebuild(pf
, false);
10706 static const struct pci_error_handlers i40e_err_handler
= {
10707 .error_detected
= i40e_pci_error_detected
,
10708 .slot_reset
= i40e_pci_error_slot_reset
,
10709 .resume
= i40e_pci_error_resume
,
10712 static struct pci_driver i40e_driver
= {
10713 .name
= i40e_driver_name
,
10714 .id_table
= i40e_pci_tbl
,
10715 .probe
= i40e_probe
,
10716 .remove
= i40e_remove
,
10718 .suspend
= i40e_suspend
,
10719 .resume
= i40e_resume
,
10721 .shutdown
= i40e_shutdown
,
10722 .err_handler
= &i40e_err_handler
,
10723 .sriov_configure
= i40e_pci_sriov_configure
,
10727 * i40e_init_module - Driver registration routine
10729 * i40e_init_module is the first routine called when the driver is
10730 * loaded. All it does is register with the PCI subsystem.
10732 static int __init
i40e_init_module(void)
10734 pr_info("%s: %s - version %s\n", i40e_driver_name
,
10735 i40e_driver_string
, i40e_driver_version_str
);
10736 pr_info("%s: %s\n", i40e_driver_name
, i40e_copyright
);
10739 return pci_register_driver(&i40e_driver
);
10741 module_init(i40e_init_module
);
10744 * i40e_exit_module - Driver exit cleanup routine
10746 * i40e_exit_module is called just before the driver is removed
10749 static void __exit
i40e_exit_module(void)
10751 pci_unregister_driver(&i40e_driver
);
10754 module_exit(i40e_exit_module
);