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 25
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_q_vector
*q_vector
;
2905 struct i40e_hw
*hw
= &pf
->hw
;
2911 /* The interrupt indexing is offset by 1 in the PFINT_ITRn
2912 * and PFINT_LNKLSTn registers, e.g.:
2913 * PFINT_ITRn[0..n-1] gets msix-1..msix-n (qpair interrupts)
2915 qp
= vsi
->base_queue
;
2916 vector
= vsi
->base_vector
;
2917 for (i
= 0; i
< vsi
->num_q_vectors
; i
++, vector
++) {
2918 q_vector
= vsi
->q_vectors
[i
];
2919 q_vector
->rx
.itr
= ITR_TO_REG(vsi
->rx_itr_setting
);
2920 q_vector
->rx
.latency_range
= I40E_LOW_LATENCY
;
2921 wr32(hw
, I40E_PFINT_ITRN(I40E_RX_ITR
, vector
- 1),
2923 q_vector
->tx
.itr
= ITR_TO_REG(vsi
->tx_itr_setting
);
2924 q_vector
->tx
.latency_range
= I40E_LOW_LATENCY
;
2925 wr32(hw
, I40E_PFINT_ITRN(I40E_TX_ITR
, vector
- 1),
2928 /* Linked list for the queuepairs assigned to this vector */
2929 wr32(hw
, I40E_PFINT_LNKLSTN(vector
- 1), qp
);
2930 for (q
= 0; q
< q_vector
->num_ringpairs
; q
++) {
2931 val
= I40E_QINT_RQCTL_CAUSE_ENA_MASK
|
2932 (I40E_RX_ITR
<< I40E_QINT_RQCTL_ITR_INDX_SHIFT
) |
2933 (vector
<< I40E_QINT_RQCTL_MSIX_INDX_SHIFT
) |
2934 (qp
<< I40E_QINT_RQCTL_NEXTQ_INDX_SHIFT
)|
2936 << I40E_QINT_RQCTL_NEXTQ_TYPE_SHIFT
);
2938 wr32(hw
, I40E_QINT_RQCTL(qp
), val
);
2940 val
= I40E_QINT_TQCTL_CAUSE_ENA_MASK
|
2941 (I40E_TX_ITR
<< I40E_QINT_TQCTL_ITR_INDX_SHIFT
) |
2942 (vector
<< I40E_QINT_TQCTL_MSIX_INDX_SHIFT
) |
2943 ((qp
+1) << I40E_QINT_TQCTL_NEXTQ_INDX_SHIFT
)|
2945 << I40E_QINT_TQCTL_NEXTQ_TYPE_SHIFT
);
2947 /* Terminate the linked list */
2948 if (q
== (q_vector
->num_ringpairs
- 1))
2949 val
|= (I40E_QUEUE_END_OF_LIST
2950 << I40E_QINT_TQCTL_NEXTQ_INDX_SHIFT
);
2952 wr32(hw
, I40E_QINT_TQCTL(qp
), val
);
2961 * i40e_enable_misc_int_causes - enable the non-queue interrupts
2962 * @hw: ptr to the hardware info
2964 static void i40e_enable_misc_int_causes(struct i40e_pf
*pf
)
2966 struct i40e_hw
*hw
= &pf
->hw
;
2969 /* clear things first */
2970 wr32(hw
, I40E_PFINT_ICR0_ENA
, 0); /* disable all */
2971 rd32(hw
, I40E_PFINT_ICR0
); /* read to clear */
2973 val
= I40E_PFINT_ICR0_ENA_ECC_ERR_MASK
|
2974 I40E_PFINT_ICR0_ENA_MAL_DETECT_MASK
|
2975 I40E_PFINT_ICR0_ENA_GRST_MASK
|
2976 I40E_PFINT_ICR0_ENA_PCI_EXCEPTION_MASK
|
2977 I40E_PFINT_ICR0_ENA_GPIO_MASK
|
2978 I40E_PFINT_ICR0_ENA_HMC_ERR_MASK
|
2979 I40E_PFINT_ICR0_ENA_VFLR_MASK
|
2980 I40E_PFINT_ICR0_ENA_ADMINQ_MASK
;
2982 if (pf
->flags
& I40E_FLAG_IWARP_ENABLED
)
2983 val
|= I40E_PFINT_ICR0_ENA_PE_CRITERR_MASK
;
2985 if (pf
->flags
& I40E_FLAG_PTP
)
2986 val
|= I40E_PFINT_ICR0_ENA_TIMESYNC_MASK
;
2988 wr32(hw
, I40E_PFINT_ICR0_ENA
, val
);
2990 /* SW_ITR_IDX = 0, but don't change INTENA */
2991 wr32(hw
, I40E_PFINT_DYN_CTL0
, I40E_PFINT_DYN_CTL0_SW_ITR_INDX_MASK
|
2992 I40E_PFINT_DYN_CTL0_INTENA_MSK_MASK
);
2994 /* OTHER_ITR_IDX = 0 */
2995 wr32(hw
, I40E_PFINT_STAT_CTL0
, 0);
2999 * i40e_configure_msi_and_legacy - Legacy mode interrupt config in the HW
3000 * @vsi: the VSI being configured
3002 static void i40e_configure_msi_and_legacy(struct i40e_vsi
*vsi
)
3004 struct i40e_q_vector
*q_vector
= vsi
->q_vectors
[0];
3005 struct i40e_pf
*pf
= vsi
->back
;
3006 struct i40e_hw
*hw
= &pf
->hw
;
3009 /* set the ITR configuration */
3010 q_vector
->rx
.itr
= ITR_TO_REG(vsi
->rx_itr_setting
);
3011 q_vector
->rx
.latency_range
= I40E_LOW_LATENCY
;
3012 wr32(hw
, I40E_PFINT_ITR0(I40E_RX_ITR
), q_vector
->rx
.itr
);
3013 q_vector
->tx
.itr
= ITR_TO_REG(vsi
->tx_itr_setting
);
3014 q_vector
->tx
.latency_range
= I40E_LOW_LATENCY
;
3015 wr32(hw
, I40E_PFINT_ITR0(I40E_TX_ITR
), q_vector
->tx
.itr
);
3017 i40e_enable_misc_int_causes(pf
);
3019 /* FIRSTQ_INDX = 0, FIRSTQ_TYPE = 0 (rx) */
3020 wr32(hw
, I40E_PFINT_LNKLST0
, 0);
3022 /* Associate the queue pair to the vector and enable the queue int */
3023 val
= I40E_QINT_RQCTL_CAUSE_ENA_MASK
|
3024 (I40E_RX_ITR
<< I40E_QINT_RQCTL_ITR_INDX_SHIFT
) |
3025 (I40E_QUEUE_TYPE_TX
<< I40E_QINT_TQCTL_NEXTQ_TYPE_SHIFT
);
3027 wr32(hw
, I40E_QINT_RQCTL(0), val
);
3029 val
= I40E_QINT_TQCTL_CAUSE_ENA_MASK
|
3030 (I40E_TX_ITR
<< I40E_QINT_TQCTL_ITR_INDX_SHIFT
) |
3031 (I40E_QUEUE_END_OF_LIST
<< I40E_QINT_TQCTL_NEXTQ_INDX_SHIFT
);
3033 wr32(hw
, I40E_QINT_TQCTL(0), val
);
3038 * i40e_irq_dynamic_disable_icr0 - Disable default interrupt generation for icr0
3039 * @pf: board private structure
3041 void i40e_irq_dynamic_disable_icr0(struct i40e_pf
*pf
)
3043 struct i40e_hw
*hw
= &pf
->hw
;
3045 wr32(hw
, I40E_PFINT_DYN_CTL0
,
3046 I40E_ITR_NONE
<< I40E_PFINT_DYN_CTLN_ITR_INDX_SHIFT
);
3051 * i40e_irq_dynamic_enable_icr0 - Enable default interrupt generation for icr0
3052 * @pf: board private structure
3054 void i40e_irq_dynamic_enable_icr0(struct i40e_pf
*pf
)
3056 struct i40e_hw
*hw
= &pf
->hw
;
3059 val
= I40E_PFINT_DYN_CTL0_INTENA_MASK
|
3060 I40E_PFINT_DYN_CTL0_CLEARPBA_MASK
|
3061 (I40E_ITR_NONE
<< I40E_PFINT_DYN_CTL0_ITR_INDX_SHIFT
);
3063 wr32(hw
, I40E_PFINT_DYN_CTL0
, val
);
3068 * i40e_irq_dynamic_disable - Disable default interrupt generation settings
3069 * @vsi: pointer to a vsi
3070 * @vector: disable a particular Hw Interrupt vector
3072 void i40e_irq_dynamic_disable(struct i40e_vsi
*vsi
, int vector
)
3074 struct i40e_pf
*pf
= vsi
->back
;
3075 struct i40e_hw
*hw
= &pf
->hw
;
3078 val
= I40E_ITR_NONE
<< I40E_PFINT_DYN_CTLN_ITR_INDX_SHIFT
;
3079 wr32(hw
, I40E_PFINT_DYN_CTLN(vector
- 1), val
);
3084 * i40e_msix_clean_rings - MSIX mode Interrupt Handler
3085 * @irq: interrupt number
3086 * @data: pointer to a q_vector
3088 static irqreturn_t
i40e_msix_clean_rings(int irq
, void *data
)
3090 struct i40e_q_vector
*q_vector
= data
;
3092 if (!q_vector
->tx
.ring
&& !q_vector
->rx
.ring
)
3095 napi_schedule(&q_vector
->napi
);
3101 * i40e_vsi_request_irq_msix - Initialize MSI-X interrupts
3102 * @vsi: the VSI being configured
3103 * @basename: name for the vector
3105 * Allocates MSI-X vectors and requests interrupts from the kernel.
3107 static int i40e_vsi_request_irq_msix(struct i40e_vsi
*vsi
, char *basename
)
3109 int q_vectors
= vsi
->num_q_vectors
;
3110 struct i40e_pf
*pf
= vsi
->back
;
3111 int base
= vsi
->base_vector
;
3116 for (vector
= 0; vector
< q_vectors
; vector
++) {
3117 struct i40e_q_vector
*q_vector
= vsi
->q_vectors
[vector
];
3119 if (q_vector
->tx
.ring
&& q_vector
->rx
.ring
) {
3120 snprintf(q_vector
->name
, sizeof(q_vector
->name
) - 1,
3121 "%s-%s-%d", basename
, "TxRx", rx_int_idx
++);
3123 } else if (q_vector
->rx
.ring
) {
3124 snprintf(q_vector
->name
, sizeof(q_vector
->name
) - 1,
3125 "%s-%s-%d", basename
, "rx", rx_int_idx
++);
3126 } else if (q_vector
->tx
.ring
) {
3127 snprintf(q_vector
->name
, sizeof(q_vector
->name
) - 1,
3128 "%s-%s-%d", basename
, "tx", tx_int_idx
++);
3130 /* skip this unused q_vector */
3133 err
= request_irq(pf
->msix_entries
[base
+ vector
].vector
,
3139 dev_info(&pf
->pdev
->dev
,
3140 "MSIX request_irq failed, error: %d\n", err
);
3141 goto free_queue_irqs
;
3143 /* assign the mask for this irq */
3144 irq_set_affinity_hint(pf
->msix_entries
[base
+ vector
].vector
,
3145 &q_vector
->affinity_mask
);
3148 vsi
->irqs_ready
= true;
3154 irq_set_affinity_hint(pf
->msix_entries
[base
+ vector
].vector
,
3156 free_irq(pf
->msix_entries
[base
+ vector
].vector
,
3157 &(vsi
->q_vectors
[vector
]));
3163 * i40e_vsi_disable_irq - Mask off queue interrupt generation on the VSI
3164 * @vsi: the VSI being un-configured
3166 static void i40e_vsi_disable_irq(struct i40e_vsi
*vsi
)
3168 struct i40e_pf
*pf
= vsi
->back
;
3169 struct i40e_hw
*hw
= &pf
->hw
;
3170 int base
= vsi
->base_vector
;
3173 for (i
= 0; i
< vsi
->num_queue_pairs
; i
++) {
3174 wr32(hw
, I40E_QINT_TQCTL(vsi
->tx_rings
[i
]->reg_idx
), 0);
3175 wr32(hw
, I40E_QINT_RQCTL(vsi
->rx_rings
[i
]->reg_idx
), 0);
3178 if (pf
->flags
& I40E_FLAG_MSIX_ENABLED
) {
3179 for (i
= vsi
->base_vector
;
3180 i
< (vsi
->num_q_vectors
+ vsi
->base_vector
); i
++)
3181 wr32(hw
, I40E_PFINT_DYN_CTLN(i
- 1), 0);
3184 for (i
= 0; i
< vsi
->num_q_vectors
; i
++)
3185 synchronize_irq(pf
->msix_entries
[i
+ base
].vector
);
3187 /* Legacy and MSI mode - this stops all interrupt handling */
3188 wr32(hw
, I40E_PFINT_ICR0_ENA
, 0);
3189 wr32(hw
, I40E_PFINT_DYN_CTL0
, 0);
3191 synchronize_irq(pf
->pdev
->irq
);
3196 * i40e_vsi_enable_irq - Enable IRQ for the given VSI
3197 * @vsi: the VSI being configured
3199 static int i40e_vsi_enable_irq(struct i40e_vsi
*vsi
)
3201 struct i40e_pf
*pf
= vsi
->back
;
3204 if (pf
->flags
& I40E_FLAG_MSIX_ENABLED
) {
3205 for (i
= 0; i
< vsi
->num_q_vectors
; i
++)
3206 i40e_irq_dynamic_enable(vsi
, i
);
3208 i40e_irq_dynamic_enable_icr0(pf
);
3211 i40e_flush(&pf
->hw
);
3216 * i40e_stop_misc_vector - Stop the vector that handles non-queue events
3217 * @pf: board private structure
3219 static void i40e_stop_misc_vector(struct i40e_pf
*pf
)
3222 wr32(&pf
->hw
, I40E_PFINT_ICR0_ENA
, 0);
3223 i40e_flush(&pf
->hw
);
3227 * i40e_intr - MSI/Legacy and non-queue interrupt handler
3228 * @irq: interrupt number
3229 * @data: pointer to a q_vector
3231 * This is the handler used for all MSI/Legacy interrupts, and deals
3232 * with both queue and non-queue interrupts. This is also used in
3233 * MSIX mode to handle the non-queue interrupts.
3235 static irqreturn_t
i40e_intr(int irq
, void *data
)
3237 struct i40e_pf
*pf
= (struct i40e_pf
*)data
;
3238 struct i40e_hw
*hw
= &pf
->hw
;
3239 irqreturn_t ret
= IRQ_NONE
;
3240 u32 icr0
, icr0_remaining
;
3243 icr0
= rd32(hw
, I40E_PFINT_ICR0
);
3244 ena_mask
= rd32(hw
, I40E_PFINT_ICR0_ENA
);
3246 /* if sharing a legacy IRQ, we might get called w/o an intr pending */
3247 if ((icr0
& I40E_PFINT_ICR0_INTEVENT_MASK
) == 0)
3250 /* if interrupt but no bits showing, must be SWINT */
3251 if (((icr0
& ~I40E_PFINT_ICR0_INTEVENT_MASK
) == 0) ||
3252 (icr0
& I40E_PFINT_ICR0_SWINT_MASK
))
3255 if ((pf
->flags
& I40E_FLAG_IWARP_ENABLED
) &&
3256 (ena_mask
& I40E_PFINT_ICR0_ENA_PE_CRITERR_MASK
)) {
3257 ena_mask
&= ~I40E_PFINT_ICR0_ENA_PE_CRITERR_MASK
;
3258 icr0
&= ~I40E_PFINT_ICR0_ENA_PE_CRITERR_MASK
;
3259 dev_info(&pf
->pdev
->dev
, "cleared PE_CRITERR\n");
3262 /* only q0 is used in MSI/Legacy mode, and none are used in MSIX */
3263 if (icr0
& I40E_PFINT_ICR0_QUEUE_0_MASK
) {
3265 /* temporarily disable queue cause for NAPI processing */
3266 u32 qval
= rd32(hw
, I40E_QINT_RQCTL(0));
3268 qval
&= ~I40E_QINT_RQCTL_CAUSE_ENA_MASK
;
3269 wr32(hw
, I40E_QINT_RQCTL(0), qval
);
3271 qval
= rd32(hw
, I40E_QINT_TQCTL(0));
3272 qval
&= ~I40E_QINT_TQCTL_CAUSE_ENA_MASK
;
3273 wr32(hw
, I40E_QINT_TQCTL(0), qval
);
3275 if (!test_bit(__I40E_DOWN
, &pf
->state
))
3276 napi_schedule(&pf
->vsi
[pf
->lan_vsi
]->q_vectors
[0]->napi
);
3279 if (icr0
& I40E_PFINT_ICR0_ADMINQ_MASK
) {
3280 ena_mask
&= ~I40E_PFINT_ICR0_ENA_ADMINQ_MASK
;
3281 set_bit(__I40E_ADMINQ_EVENT_PENDING
, &pf
->state
);
3284 if (icr0
& I40E_PFINT_ICR0_MAL_DETECT_MASK
) {
3285 ena_mask
&= ~I40E_PFINT_ICR0_ENA_MAL_DETECT_MASK
;
3286 set_bit(__I40E_MDD_EVENT_PENDING
, &pf
->state
);
3289 if (icr0
& I40E_PFINT_ICR0_VFLR_MASK
) {
3290 ena_mask
&= ~I40E_PFINT_ICR0_ENA_VFLR_MASK
;
3291 set_bit(__I40E_VFLR_EVENT_PENDING
, &pf
->state
);
3294 if (icr0
& I40E_PFINT_ICR0_GRST_MASK
) {
3295 if (!test_bit(__I40E_RESET_RECOVERY_PENDING
, &pf
->state
))
3296 set_bit(__I40E_RESET_INTR_RECEIVED
, &pf
->state
);
3297 ena_mask
&= ~I40E_PFINT_ICR0_ENA_GRST_MASK
;
3298 val
= rd32(hw
, I40E_GLGEN_RSTAT
);
3299 val
= (val
& I40E_GLGEN_RSTAT_RESET_TYPE_MASK
)
3300 >> I40E_GLGEN_RSTAT_RESET_TYPE_SHIFT
;
3301 if (val
== I40E_RESET_CORER
) {
3303 } else if (val
== I40E_RESET_GLOBR
) {
3305 } else if (val
== I40E_RESET_EMPR
) {
3307 set_bit(__I40E_EMP_RESET_INTR_RECEIVED
, &pf
->state
);
3311 if (icr0
& I40E_PFINT_ICR0_HMC_ERR_MASK
) {
3312 icr0
&= ~I40E_PFINT_ICR0_HMC_ERR_MASK
;
3313 dev_info(&pf
->pdev
->dev
, "HMC error interrupt\n");
3314 dev_info(&pf
->pdev
->dev
, "HMC error info 0x%x, HMC error data 0x%x\n",
3315 rd32(hw
, I40E_PFHMC_ERRORINFO
),
3316 rd32(hw
, I40E_PFHMC_ERRORDATA
));
3319 if (icr0
& I40E_PFINT_ICR0_TIMESYNC_MASK
) {
3320 u32 prttsyn_stat
= rd32(hw
, I40E_PRTTSYN_STAT_0
);
3322 if (prttsyn_stat
& I40E_PRTTSYN_STAT_0_TXTIME_MASK
) {
3323 icr0
&= ~I40E_PFINT_ICR0_ENA_TIMESYNC_MASK
;
3324 i40e_ptp_tx_hwtstamp(pf
);
3328 /* If a critical error is pending we have no choice but to reset the
3330 * Report and mask out any remaining unexpected interrupts.
3332 icr0_remaining
= icr0
& ena_mask
;
3333 if (icr0_remaining
) {
3334 dev_info(&pf
->pdev
->dev
, "unhandled interrupt icr0=0x%08x\n",
3336 if ((icr0_remaining
& I40E_PFINT_ICR0_PE_CRITERR_MASK
) ||
3337 (icr0_remaining
& I40E_PFINT_ICR0_PCI_EXCEPTION_MASK
) ||
3338 (icr0_remaining
& I40E_PFINT_ICR0_ECC_ERR_MASK
)) {
3339 dev_info(&pf
->pdev
->dev
, "device will be reset\n");
3340 set_bit(__I40E_PF_RESET_REQUESTED
, &pf
->state
);
3341 i40e_service_event_schedule(pf
);
3343 ena_mask
&= ~icr0_remaining
;
3348 /* re-enable interrupt causes */
3349 wr32(hw
, I40E_PFINT_ICR0_ENA
, ena_mask
);
3350 if (!test_bit(__I40E_DOWN
, &pf
->state
)) {
3351 i40e_service_event_schedule(pf
);
3352 i40e_irq_dynamic_enable_icr0(pf
);
3359 * i40e_clean_fdir_tx_irq - Reclaim resources after transmit completes
3360 * @tx_ring: tx ring to clean
3361 * @budget: how many cleans we're allowed
3363 * Returns true if there's any budget left (e.g. the clean is finished)
3365 static bool i40e_clean_fdir_tx_irq(struct i40e_ring
*tx_ring
, int budget
)
3367 struct i40e_vsi
*vsi
= tx_ring
->vsi
;
3368 u16 i
= tx_ring
->next_to_clean
;
3369 struct i40e_tx_buffer
*tx_buf
;
3370 struct i40e_tx_desc
*tx_desc
;
3372 tx_buf
= &tx_ring
->tx_bi
[i
];
3373 tx_desc
= I40E_TX_DESC(tx_ring
, i
);
3374 i
-= tx_ring
->count
;
3377 struct i40e_tx_desc
*eop_desc
= tx_buf
->next_to_watch
;
3379 /* if next_to_watch is not set then there is no work pending */
3383 /* prevent any other reads prior to eop_desc */
3384 read_barrier_depends();
3386 /* if the descriptor isn't done, no work yet to do */
3387 if (!(eop_desc
->cmd_type_offset_bsz
&
3388 cpu_to_le64(I40E_TX_DESC_DTYPE_DESC_DONE
)))
3391 /* clear next_to_watch to prevent false hangs */
3392 tx_buf
->next_to_watch
= NULL
;
3394 tx_desc
->buffer_addr
= 0;
3395 tx_desc
->cmd_type_offset_bsz
= 0;
3396 /* move past filter desc */
3401 i
-= tx_ring
->count
;
3402 tx_buf
= tx_ring
->tx_bi
;
3403 tx_desc
= I40E_TX_DESC(tx_ring
, 0);
3405 /* unmap skb header data */
3406 dma_unmap_single(tx_ring
->dev
,
3407 dma_unmap_addr(tx_buf
, dma
),
3408 dma_unmap_len(tx_buf
, len
),
3410 if (tx_buf
->tx_flags
& I40E_TX_FLAGS_FD_SB
)
3411 kfree(tx_buf
->raw_buf
);
3413 tx_buf
->raw_buf
= NULL
;
3414 tx_buf
->tx_flags
= 0;
3415 tx_buf
->next_to_watch
= NULL
;
3416 dma_unmap_len_set(tx_buf
, len
, 0);
3417 tx_desc
->buffer_addr
= 0;
3418 tx_desc
->cmd_type_offset_bsz
= 0;
3420 /* move us past the eop_desc for start of next FD desc */
3425 i
-= tx_ring
->count
;
3426 tx_buf
= tx_ring
->tx_bi
;
3427 tx_desc
= I40E_TX_DESC(tx_ring
, 0);
3430 /* update budget accounting */
3432 } while (likely(budget
));
3434 i
+= tx_ring
->count
;
3435 tx_ring
->next_to_clean
= i
;
3437 if (vsi
->back
->flags
& I40E_FLAG_MSIX_ENABLED
)
3438 i40e_irq_dynamic_enable(vsi
, tx_ring
->q_vector
->v_idx
);
3444 * i40e_fdir_clean_ring - Interrupt Handler for FDIR SB ring
3445 * @irq: interrupt number
3446 * @data: pointer to a q_vector
3448 static irqreturn_t
i40e_fdir_clean_ring(int irq
, void *data
)
3450 struct i40e_q_vector
*q_vector
= data
;
3451 struct i40e_vsi
*vsi
;
3453 if (!q_vector
->tx
.ring
)
3456 vsi
= q_vector
->tx
.ring
->vsi
;
3457 i40e_clean_fdir_tx_irq(q_vector
->tx
.ring
, vsi
->work_limit
);
3463 * i40e_map_vector_to_qp - Assigns the queue pair to the vector
3464 * @vsi: the VSI being configured
3465 * @v_idx: vector index
3466 * @qp_idx: queue pair index
3468 static void i40e_map_vector_to_qp(struct i40e_vsi
*vsi
, int v_idx
, int qp_idx
)
3470 struct i40e_q_vector
*q_vector
= vsi
->q_vectors
[v_idx
];
3471 struct i40e_ring
*tx_ring
= vsi
->tx_rings
[qp_idx
];
3472 struct i40e_ring
*rx_ring
= vsi
->rx_rings
[qp_idx
];
3474 tx_ring
->q_vector
= q_vector
;
3475 tx_ring
->next
= q_vector
->tx
.ring
;
3476 q_vector
->tx
.ring
= tx_ring
;
3477 q_vector
->tx
.count
++;
3479 rx_ring
->q_vector
= q_vector
;
3480 rx_ring
->next
= q_vector
->rx
.ring
;
3481 q_vector
->rx
.ring
= rx_ring
;
3482 q_vector
->rx
.count
++;
3486 * i40e_vsi_map_rings_to_vectors - Maps descriptor rings to vectors
3487 * @vsi: the VSI being configured
3489 * This function maps descriptor rings to the queue-specific vectors
3490 * we were allotted through the MSI-X enabling code. Ideally, we'd have
3491 * one vector per queue pair, but on a constrained vector budget, we
3492 * group the queue pairs as "efficiently" as possible.
3494 static void i40e_vsi_map_rings_to_vectors(struct i40e_vsi
*vsi
)
3496 int qp_remaining
= vsi
->num_queue_pairs
;
3497 int q_vectors
= vsi
->num_q_vectors
;
3502 /* If we don't have enough vectors for a 1-to-1 mapping, we'll have to
3503 * group them so there are multiple queues per vector.
3504 * It is also important to go through all the vectors available to be
3505 * sure that if we don't use all the vectors, that the remaining vectors
3506 * are cleared. This is especially important when decreasing the
3507 * number of queues in use.
3509 for (; v_start
< q_vectors
; v_start
++) {
3510 struct i40e_q_vector
*q_vector
= vsi
->q_vectors
[v_start
];
3512 num_ringpairs
= DIV_ROUND_UP(qp_remaining
, q_vectors
- v_start
);
3514 q_vector
->num_ringpairs
= num_ringpairs
;
3516 q_vector
->rx
.count
= 0;
3517 q_vector
->tx
.count
= 0;
3518 q_vector
->rx
.ring
= NULL
;
3519 q_vector
->tx
.ring
= NULL
;
3521 while (num_ringpairs
--) {
3522 i40e_map_vector_to_qp(vsi
, v_start
, qp_idx
);
3530 * i40e_vsi_request_irq - Request IRQ from the OS
3531 * @vsi: the VSI being configured
3532 * @basename: name for the vector
3534 static int i40e_vsi_request_irq(struct i40e_vsi
*vsi
, char *basename
)
3536 struct i40e_pf
*pf
= vsi
->back
;
3539 if (pf
->flags
& I40E_FLAG_MSIX_ENABLED
)
3540 err
= i40e_vsi_request_irq_msix(vsi
, basename
);
3541 else if (pf
->flags
& I40E_FLAG_MSI_ENABLED
)
3542 err
= request_irq(pf
->pdev
->irq
, i40e_intr
, 0,
3545 err
= request_irq(pf
->pdev
->irq
, i40e_intr
, IRQF_SHARED
,
3549 dev_info(&pf
->pdev
->dev
, "request_irq failed, Error %d\n", err
);
3554 #ifdef CONFIG_NET_POLL_CONTROLLER
3556 * i40e_netpoll - A Polling 'interrupt'handler
3557 * @netdev: network interface device structure
3559 * This is used by netconsole to send skbs without having to re-enable
3560 * interrupts. It's not called while the normal interrupt routine is executing.
3563 void i40e_netpoll(struct net_device
*netdev
)
3565 static void i40e_netpoll(struct net_device
*netdev
)
3568 struct i40e_netdev_priv
*np
= netdev_priv(netdev
);
3569 struct i40e_vsi
*vsi
= np
->vsi
;
3570 struct i40e_pf
*pf
= vsi
->back
;
3573 /* if interface is down do nothing */
3574 if (test_bit(__I40E_DOWN
, &vsi
->state
))
3577 pf
->flags
|= I40E_FLAG_IN_NETPOLL
;
3578 if (pf
->flags
& I40E_FLAG_MSIX_ENABLED
) {
3579 for (i
= 0; i
< vsi
->num_q_vectors
; i
++)
3580 i40e_msix_clean_rings(0, vsi
->q_vectors
[i
]);
3582 i40e_intr(pf
->pdev
->irq
, netdev
);
3584 pf
->flags
&= ~I40E_FLAG_IN_NETPOLL
;
3589 * i40e_pf_txq_wait - Wait for a PF's Tx queue to be enabled or disabled
3590 * @pf: the PF being configured
3591 * @pf_q: the PF queue
3592 * @enable: enable or disable state of the queue
3594 * This routine will wait for the given Tx queue of the PF to reach the
3595 * enabled or disabled state.
3596 * Returns -ETIMEDOUT in case of failing to reach the requested state after
3597 * multiple retries; else will return 0 in case of success.
3599 static int i40e_pf_txq_wait(struct i40e_pf
*pf
, int pf_q
, bool enable
)
3604 for (i
= 0; i
< I40E_QUEUE_WAIT_RETRY_LIMIT
; i
++) {
3605 tx_reg
= rd32(&pf
->hw
, I40E_QTX_ENA(pf_q
));
3606 if (enable
== !!(tx_reg
& I40E_QTX_ENA_QENA_STAT_MASK
))
3609 usleep_range(10, 20);
3611 if (i
>= I40E_QUEUE_WAIT_RETRY_LIMIT
)
3618 * i40e_vsi_control_tx - Start or stop a VSI's rings
3619 * @vsi: the VSI being configured
3620 * @enable: start or stop the rings
3622 static int i40e_vsi_control_tx(struct i40e_vsi
*vsi
, bool enable
)
3624 struct i40e_pf
*pf
= vsi
->back
;
3625 struct i40e_hw
*hw
= &pf
->hw
;
3626 int i
, j
, pf_q
, ret
= 0;
3629 pf_q
= vsi
->base_queue
;
3630 for (i
= 0; i
< vsi
->num_queue_pairs
; i
++, pf_q
++) {
3632 /* warn the TX unit of coming changes */
3633 i40e_pre_tx_queue_cfg(&pf
->hw
, pf_q
, enable
);
3635 usleep_range(10, 20);
3637 for (j
= 0; j
< 50; j
++) {
3638 tx_reg
= rd32(hw
, I40E_QTX_ENA(pf_q
));
3639 if (((tx_reg
>> I40E_QTX_ENA_QENA_REQ_SHIFT
) & 1) ==
3640 ((tx_reg
>> I40E_QTX_ENA_QENA_STAT_SHIFT
) & 1))
3642 usleep_range(1000, 2000);
3644 /* Skip if the queue is already in the requested state */
3645 if (enable
== !!(tx_reg
& I40E_QTX_ENA_QENA_STAT_MASK
))
3648 /* turn on/off the queue */
3650 wr32(hw
, I40E_QTX_HEAD(pf_q
), 0);
3651 tx_reg
|= I40E_QTX_ENA_QENA_REQ_MASK
;
3653 tx_reg
&= ~I40E_QTX_ENA_QENA_REQ_MASK
;
3656 wr32(hw
, I40E_QTX_ENA(pf_q
), tx_reg
);
3657 /* No waiting for the Tx queue to disable */
3658 if (!enable
&& test_bit(__I40E_PORT_TX_SUSPENDED
, &pf
->state
))
3661 /* wait for the change to finish */
3662 ret
= i40e_pf_txq_wait(pf
, pf_q
, enable
);
3664 dev_info(&pf
->pdev
->dev
,
3665 "VSI seid %d Tx ring %d %sable timeout\n",
3666 vsi
->seid
, pf_q
, (enable
? "en" : "dis"));
3671 if (hw
->revision_id
== 0)
3677 * i40e_pf_rxq_wait - Wait for a PF's Rx queue to be enabled or disabled
3678 * @pf: the PF being configured
3679 * @pf_q: the PF queue
3680 * @enable: enable or disable state of the queue
3682 * This routine will wait for the given Rx queue of the PF to reach the
3683 * enabled or disabled state.
3684 * Returns -ETIMEDOUT in case of failing to reach the requested state after
3685 * multiple retries; else will return 0 in case of success.
3687 static int i40e_pf_rxq_wait(struct i40e_pf
*pf
, int pf_q
, bool enable
)
3692 for (i
= 0; i
< I40E_QUEUE_WAIT_RETRY_LIMIT
; i
++) {
3693 rx_reg
= rd32(&pf
->hw
, I40E_QRX_ENA(pf_q
));
3694 if (enable
== !!(rx_reg
& I40E_QRX_ENA_QENA_STAT_MASK
))
3697 usleep_range(10, 20);
3699 if (i
>= I40E_QUEUE_WAIT_RETRY_LIMIT
)
3706 * i40e_vsi_control_rx - Start or stop a VSI's rings
3707 * @vsi: the VSI being configured
3708 * @enable: start or stop the rings
3710 static int i40e_vsi_control_rx(struct i40e_vsi
*vsi
, bool enable
)
3712 struct i40e_pf
*pf
= vsi
->back
;
3713 struct i40e_hw
*hw
= &pf
->hw
;
3714 int i
, j
, pf_q
, ret
= 0;
3717 pf_q
= vsi
->base_queue
;
3718 for (i
= 0; i
< vsi
->num_queue_pairs
; i
++, pf_q
++) {
3719 for (j
= 0; j
< 50; j
++) {
3720 rx_reg
= rd32(hw
, I40E_QRX_ENA(pf_q
));
3721 if (((rx_reg
>> I40E_QRX_ENA_QENA_REQ_SHIFT
) & 1) ==
3722 ((rx_reg
>> I40E_QRX_ENA_QENA_STAT_SHIFT
) & 1))
3724 usleep_range(1000, 2000);
3727 /* Skip if the queue is already in the requested state */
3728 if (enable
== !!(rx_reg
& I40E_QRX_ENA_QENA_STAT_MASK
))
3731 /* turn on/off the queue */
3733 rx_reg
|= I40E_QRX_ENA_QENA_REQ_MASK
;
3735 rx_reg
&= ~I40E_QRX_ENA_QENA_REQ_MASK
;
3736 wr32(hw
, I40E_QRX_ENA(pf_q
), rx_reg
);
3738 /* wait for the change to finish */
3739 ret
= i40e_pf_rxq_wait(pf
, pf_q
, enable
);
3741 dev_info(&pf
->pdev
->dev
,
3742 "VSI seid %d Rx ring %d %sable timeout\n",
3743 vsi
->seid
, pf_q
, (enable
? "en" : "dis"));
3752 * i40e_vsi_control_rings - Start or stop a VSI's rings
3753 * @vsi: the VSI being configured
3754 * @enable: start or stop the rings
3756 int i40e_vsi_control_rings(struct i40e_vsi
*vsi
, bool request
)
3760 /* do rx first for enable and last for disable */
3762 ret
= i40e_vsi_control_rx(vsi
, request
);
3765 ret
= i40e_vsi_control_tx(vsi
, request
);
3767 /* Ignore return value, we need to shutdown whatever we can */
3768 i40e_vsi_control_tx(vsi
, request
);
3769 i40e_vsi_control_rx(vsi
, request
);
3776 * i40e_vsi_free_irq - Free the irq association with the OS
3777 * @vsi: the VSI being configured
3779 static void i40e_vsi_free_irq(struct i40e_vsi
*vsi
)
3781 struct i40e_pf
*pf
= vsi
->back
;
3782 struct i40e_hw
*hw
= &pf
->hw
;
3783 int base
= vsi
->base_vector
;
3787 if (pf
->flags
& I40E_FLAG_MSIX_ENABLED
) {
3788 if (!vsi
->q_vectors
)
3791 if (!vsi
->irqs_ready
)
3794 vsi
->irqs_ready
= false;
3795 for (i
= 0; i
< vsi
->num_q_vectors
; i
++) {
3796 u16 vector
= i
+ base
;
3798 /* free only the irqs that were actually requested */
3799 if (!vsi
->q_vectors
[i
] ||
3800 !vsi
->q_vectors
[i
]->num_ringpairs
)
3803 /* clear the affinity_mask in the IRQ descriptor */
3804 irq_set_affinity_hint(pf
->msix_entries
[vector
].vector
,
3806 free_irq(pf
->msix_entries
[vector
].vector
,
3809 /* Tear down the interrupt queue link list
3811 * We know that they come in pairs and always
3812 * the Rx first, then the Tx. To clear the
3813 * link list, stick the EOL value into the
3814 * next_q field of the registers.
3816 val
= rd32(hw
, I40E_PFINT_LNKLSTN(vector
- 1));
3817 qp
= (val
& I40E_PFINT_LNKLSTN_FIRSTQ_INDX_MASK
)
3818 >> I40E_PFINT_LNKLSTN_FIRSTQ_INDX_SHIFT
;
3819 val
|= I40E_QUEUE_END_OF_LIST
3820 << I40E_PFINT_LNKLSTN_FIRSTQ_INDX_SHIFT
;
3821 wr32(hw
, I40E_PFINT_LNKLSTN(vector
- 1), val
);
3823 while (qp
!= I40E_QUEUE_END_OF_LIST
) {
3826 val
= rd32(hw
, I40E_QINT_RQCTL(qp
));
3828 val
&= ~(I40E_QINT_RQCTL_MSIX_INDX_MASK
|
3829 I40E_QINT_RQCTL_MSIX0_INDX_MASK
|
3830 I40E_QINT_RQCTL_CAUSE_ENA_MASK
|
3831 I40E_QINT_RQCTL_INTEVENT_MASK
);
3833 val
|= (I40E_QINT_RQCTL_ITR_INDX_MASK
|
3834 I40E_QINT_RQCTL_NEXTQ_INDX_MASK
);
3836 wr32(hw
, I40E_QINT_RQCTL(qp
), val
);
3838 val
= rd32(hw
, I40E_QINT_TQCTL(qp
));
3840 next
= (val
& I40E_QINT_TQCTL_NEXTQ_INDX_MASK
)
3841 >> I40E_QINT_TQCTL_NEXTQ_INDX_SHIFT
;
3843 val
&= ~(I40E_QINT_TQCTL_MSIX_INDX_MASK
|
3844 I40E_QINT_TQCTL_MSIX0_INDX_MASK
|
3845 I40E_QINT_TQCTL_CAUSE_ENA_MASK
|
3846 I40E_QINT_TQCTL_INTEVENT_MASK
);
3848 val
|= (I40E_QINT_TQCTL_ITR_INDX_MASK
|
3849 I40E_QINT_TQCTL_NEXTQ_INDX_MASK
);
3851 wr32(hw
, I40E_QINT_TQCTL(qp
), val
);
3856 free_irq(pf
->pdev
->irq
, pf
);
3858 val
= rd32(hw
, I40E_PFINT_LNKLST0
);
3859 qp
= (val
& I40E_PFINT_LNKLSTN_FIRSTQ_INDX_MASK
)
3860 >> I40E_PFINT_LNKLSTN_FIRSTQ_INDX_SHIFT
;
3861 val
|= I40E_QUEUE_END_OF_LIST
3862 << I40E_PFINT_LNKLST0_FIRSTQ_INDX_SHIFT
;
3863 wr32(hw
, I40E_PFINT_LNKLST0
, val
);
3865 val
= rd32(hw
, I40E_QINT_RQCTL(qp
));
3866 val
&= ~(I40E_QINT_RQCTL_MSIX_INDX_MASK
|
3867 I40E_QINT_RQCTL_MSIX0_INDX_MASK
|
3868 I40E_QINT_RQCTL_CAUSE_ENA_MASK
|
3869 I40E_QINT_RQCTL_INTEVENT_MASK
);
3871 val
|= (I40E_QINT_RQCTL_ITR_INDX_MASK
|
3872 I40E_QINT_RQCTL_NEXTQ_INDX_MASK
);
3874 wr32(hw
, I40E_QINT_RQCTL(qp
), val
);
3876 val
= rd32(hw
, I40E_QINT_TQCTL(qp
));
3878 val
&= ~(I40E_QINT_TQCTL_MSIX_INDX_MASK
|
3879 I40E_QINT_TQCTL_MSIX0_INDX_MASK
|
3880 I40E_QINT_TQCTL_CAUSE_ENA_MASK
|
3881 I40E_QINT_TQCTL_INTEVENT_MASK
);
3883 val
|= (I40E_QINT_TQCTL_ITR_INDX_MASK
|
3884 I40E_QINT_TQCTL_NEXTQ_INDX_MASK
);
3886 wr32(hw
, I40E_QINT_TQCTL(qp
), val
);
3891 * i40e_free_q_vector - Free memory allocated for specific interrupt vector
3892 * @vsi: the VSI being configured
3893 * @v_idx: Index of vector to be freed
3895 * This function frees the memory allocated to the q_vector. In addition if
3896 * NAPI is enabled it will delete any references to the NAPI struct prior
3897 * to freeing the q_vector.
3899 static void i40e_free_q_vector(struct i40e_vsi
*vsi
, int v_idx
)
3901 struct i40e_q_vector
*q_vector
= vsi
->q_vectors
[v_idx
];
3902 struct i40e_ring
*ring
;
3907 /* disassociate q_vector from rings */
3908 i40e_for_each_ring(ring
, q_vector
->tx
)
3909 ring
->q_vector
= NULL
;
3911 i40e_for_each_ring(ring
, q_vector
->rx
)
3912 ring
->q_vector
= NULL
;
3914 /* only VSI w/ an associated netdev is set up w/ NAPI */
3916 netif_napi_del(&q_vector
->napi
);
3918 vsi
->q_vectors
[v_idx
] = NULL
;
3920 kfree_rcu(q_vector
, rcu
);
3924 * i40e_vsi_free_q_vectors - Free memory allocated for interrupt vectors
3925 * @vsi: the VSI being un-configured
3927 * This frees the memory allocated to the q_vectors and
3928 * deletes references to the NAPI struct.
3930 static void i40e_vsi_free_q_vectors(struct i40e_vsi
*vsi
)
3934 for (v_idx
= 0; v_idx
< vsi
->num_q_vectors
; v_idx
++)
3935 i40e_free_q_vector(vsi
, v_idx
);
3939 * i40e_reset_interrupt_capability - Disable interrupt setup in OS
3940 * @pf: board private structure
3942 static void i40e_reset_interrupt_capability(struct i40e_pf
*pf
)
3944 /* If we're in Legacy mode, the interrupt was cleaned in vsi_close */
3945 if (pf
->flags
& I40E_FLAG_MSIX_ENABLED
) {
3946 pci_disable_msix(pf
->pdev
);
3947 kfree(pf
->msix_entries
);
3948 pf
->msix_entries
= NULL
;
3949 kfree(pf
->irq_pile
);
3950 pf
->irq_pile
= NULL
;
3951 } else if (pf
->flags
& I40E_FLAG_MSI_ENABLED
) {
3952 pci_disable_msi(pf
->pdev
);
3954 pf
->flags
&= ~(I40E_FLAG_MSIX_ENABLED
| I40E_FLAG_MSI_ENABLED
);
3958 * i40e_clear_interrupt_scheme - Clear the current interrupt scheme settings
3959 * @pf: board private structure
3961 * We go through and clear interrupt specific resources and reset the structure
3962 * to pre-load conditions
3964 static void i40e_clear_interrupt_scheme(struct i40e_pf
*pf
)
3968 i40e_stop_misc_vector(pf
);
3969 if (pf
->flags
& I40E_FLAG_MSIX_ENABLED
) {
3970 synchronize_irq(pf
->msix_entries
[0].vector
);
3971 free_irq(pf
->msix_entries
[0].vector
, pf
);
3974 i40e_put_lump(pf
->irq_pile
, 0, I40E_PILE_VALID_BIT
-1);
3975 for (i
= 0; i
< pf
->num_alloc_vsi
; i
++)
3977 i40e_vsi_free_q_vectors(pf
->vsi
[i
]);
3978 i40e_reset_interrupt_capability(pf
);
3982 * i40e_napi_enable_all - Enable NAPI for all q_vectors in the VSI
3983 * @vsi: the VSI being configured
3985 static void i40e_napi_enable_all(struct i40e_vsi
*vsi
)
3992 for (q_idx
= 0; q_idx
< vsi
->num_q_vectors
; q_idx
++)
3993 napi_enable(&vsi
->q_vectors
[q_idx
]->napi
);
3997 * i40e_napi_disable_all - Disable NAPI for all q_vectors in the VSI
3998 * @vsi: the VSI being configured
4000 static void i40e_napi_disable_all(struct i40e_vsi
*vsi
)
4007 for (q_idx
= 0; q_idx
< vsi
->num_q_vectors
; q_idx
++)
4008 napi_disable(&vsi
->q_vectors
[q_idx
]->napi
);
4012 * i40e_vsi_close - Shut down a VSI
4013 * @vsi: the vsi to be quelled
4015 static void i40e_vsi_close(struct i40e_vsi
*vsi
)
4017 if (!test_and_set_bit(__I40E_DOWN
, &vsi
->state
))
4019 i40e_vsi_free_irq(vsi
);
4020 i40e_vsi_free_tx_resources(vsi
);
4021 i40e_vsi_free_rx_resources(vsi
);
4022 vsi
->current_netdev_flags
= 0;
4026 * i40e_quiesce_vsi - Pause a given VSI
4027 * @vsi: the VSI being paused
4029 static void i40e_quiesce_vsi(struct i40e_vsi
*vsi
)
4031 if (test_bit(__I40E_DOWN
, &vsi
->state
))
4034 /* No need to disable FCoE VSI when Tx suspended */
4035 if ((test_bit(__I40E_PORT_TX_SUSPENDED
, &vsi
->back
->state
)) &&
4036 vsi
->type
== I40E_VSI_FCOE
) {
4037 dev_dbg(&vsi
->back
->pdev
->dev
,
4038 "VSI seid %d skipping FCoE VSI disable\n", vsi
->seid
);
4042 set_bit(__I40E_NEEDS_RESTART
, &vsi
->state
);
4043 if (vsi
->netdev
&& netif_running(vsi
->netdev
))
4044 vsi
->netdev
->netdev_ops
->ndo_stop(vsi
->netdev
);
4046 i40e_vsi_close(vsi
);
4050 * i40e_unquiesce_vsi - Resume a given VSI
4051 * @vsi: the VSI being resumed
4053 static void i40e_unquiesce_vsi(struct i40e_vsi
*vsi
)
4055 if (!test_bit(__I40E_NEEDS_RESTART
, &vsi
->state
))
4058 clear_bit(__I40E_NEEDS_RESTART
, &vsi
->state
);
4059 if (vsi
->netdev
&& netif_running(vsi
->netdev
))
4060 vsi
->netdev
->netdev_ops
->ndo_open(vsi
->netdev
);
4062 i40e_vsi_open(vsi
); /* this clears the DOWN bit */
4066 * i40e_pf_quiesce_all_vsi - Pause all VSIs on a PF
4069 static void i40e_pf_quiesce_all_vsi(struct i40e_pf
*pf
)
4073 for (v
= 0; v
< pf
->num_alloc_vsi
; v
++) {
4075 i40e_quiesce_vsi(pf
->vsi
[v
]);
4080 * i40e_pf_unquiesce_all_vsi - Resume all VSIs on a PF
4083 static void i40e_pf_unquiesce_all_vsi(struct i40e_pf
*pf
)
4087 for (v
= 0; v
< pf
->num_alloc_vsi
; v
++) {
4089 i40e_unquiesce_vsi(pf
->vsi
[v
]);
4093 #ifdef CONFIG_I40E_DCB
4095 * i40e_vsi_wait_txq_disabled - Wait for VSI's queues to be disabled
4096 * @vsi: the VSI being configured
4098 * This function waits for the given VSI's Tx queues to be disabled.
4100 static int i40e_vsi_wait_txq_disabled(struct i40e_vsi
*vsi
)
4102 struct i40e_pf
*pf
= vsi
->back
;
4105 pf_q
= vsi
->base_queue
;
4106 for (i
= 0; i
< vsi
->num_queue_pairs
; i
++, pf_q
++) {
4107 /* Check and wait for the disable status of the queue */
4108 ret
= i40e_pf_txq_wait(pf
, pf_q
, false);
4110 dev_info(&pf
->pdev
->dev
,
4111 "VSI seid %d Tx ring %d disable timeout\n",
4121 * i40e_pf_wait_txq_disabled - Wait for all queues of PF VSIs to be disabled
4124 * This function waits for the Tx queues to be in disabled state for all the
4125 * VSIs that are managed by this PF.
4127 static int i40e_pf_wait_txq_disabled(struct i40e_pf
*pf
)
4131 for (v
= 0; v
< pf
->hw
.func_caps
.num_vsis
; v
++) {
4132 /* No need to wait for FCoE VSI queues */
4133 if (pf
->vsi
[v
] && pf
->vsi
[v
]->type
!= I40E_VSI_FCOE
) {
4134 ret
= i40e_vsi_wait_txq_disabled(pf
->vsi
[v
]);
4146 * i40e_detect_recover_hung_queue - Function to detect and recover hung_queue
4147 * @q_idx: TX queue number
4148 * @vsi: Pointer to VSI struct
4150 * This function checks specified queue for given VSI. Detects hung condition.
4151 * Sets hung bit since it is two step process. Before next run of service task
4152 * if napi_poll runs, it reset 'hung' bit for respective q_vector. If not,
4153 * hung condition remain unchanged and during subsequent run, this function
4154 * issues SW interrupt to recover from hung condition.
4156 static void i40e_detect_recover_hung_queue(int q_idx
, struct i40e_vsi
*vsi
)
4158 struct i40e_ring
*tx_ring
= NULL
;
4160 u32 head
, val
, tx_pending
;
4165 /* now that we have an index, find the tx_ring struct */
4166 for (i
= 0; i
< vsi
->num_queue_pairs
; i
++) {
4167 if (vsi
->tx_rings
[i
] && vsi
->tx_rings
[i
]->desc
) {
4168 if (q_idx
== vsi
->tx_rings
[i
]->queue_index
) {
4169 tx_ring
= vsi
->tx_rings
[i
];
4178 /* Read interrupt register */
4179 if (pf
->flags
& I40E_FLAG_MSIX_ENABLED
)
4181 I40E_PFINT_DYN_CTLN(tx_ring
->q_vector
->v_idx
+
4182 tx_ring
->vsi
->base_vector
- 1));
4184 val
= rd32(&pf
->hw
, I40E_PFINT_DYN_CTL0
);
4186 head
= i40e_get_head(tx_ring
);
4188 tx_pending
= i40e_get_tx_pending(tx_ring
);
4190 /* Interrupts are disabled and TX pending is non-zero,
4191 * trigger the SW interrupt (don't wait). Worst case
4192 * there will be one extra interrupt which may result
4193 * into not cleaning any queues because queues are cleaned.
4195 if (tx_pending
&& (!(val
& I40E_PFINT_DYN_CTLN_INTENA_MASK
)))
4196 i40e_force_wb(vsi
, tx_ring
->q_vector
);
4200 * i40e_detect_recover_hung - Function to detect and recover hung_queues
4201 * @pf: pointer to PF struct
4203 * LAN VSI has netdev and netdev has TX queues. This function is to check
4204 * each of those TX queues if they are hung, trigger recovery by issuing
4207 static void i40e_detect_recover_hung(struct i40e_pf
*pf
)
4209 struct net_device
*netdev
;
4210 struct i40e_vsi
*vsi
;
4213 /* Only for LAN VSI */
4214 vsi
= pf
->vsi
[pf
->lan_vsi
];
4219 /* Make sure, VSI state is not DOWN/RECOVERY_PENDING */
4220 if (test_bit(__I40E_DOWN
, &vsi
->back
->state
) ||
4221 test_bit(__I40E_RESET_RECOVERY_PENDING
, &vsi
->back
->state
))
4224 /* Make sure type is MAIN VSI */
4225 if (vsi
->type
!= I40E_VSI_MAIN
)
4228 netdev
= vsi
->netdev
;
4232 /* Bail out if netif_carrier is not OK */
4233 if (!netif_carrier_ok(netdev
))
4236 /* Go thru' TX queues for netdev */
4237 for (i
= 0; i
< netdev
->num_tx_queues
; i
++) {
4238 struct netdev_queue
*q
;
4240 q
= netdev_get_tx_queue(netdev
, i
);
4242 i40e_detect_recover_hung_queue(i
, vsi
);
4247 * i40e_get_iscsi_tc_map - Return TC map for iSCSI APP
4248 * @pf: pointer to PF
4250 * Get TC map for ISCSI PF type that will include iSCSI TC
4253 static u8
i40e_get_iscsi_tc_map(struct i40e_pf
*pf
)
4255 struct i40e_dcb_app_priority_table app
;
4256 struct i40e_hw
*hw
= &pf
->hw
;
4257 u8 enabled_tc
= 1; /* TC0 is always enabled */
4259 /* Get the iSCSI APP TLV */
4260 struct i40e_dcbx_config
*dcbcfg
= &hw
->local_dcbx_config
;
4262 for (i
= 0; i
< dcbcfg
->numapps
; i
++) {
4263 app
= dcbcfg
->app
[i
];
4264 if (app
.selector
== I40E_APP_SEL_TCPIP
&&
4265 app
.protocolid
== I40E_APP_PROTOID_ISCSI
) {
4266 tc
= dcbcfg
->etscfg
.prioritytable
[app
.priority
];
4267 enabled_tc
|= BIT_ULL(tc
);
4276 * i40e_dcb_get_num_tc - Get the number of TCs from DCBx config
4277 * @dcbcfg: the corresponding DCBx configuration structure
4279 * Return the number of TCs from given DCBx configuration
4281 static u8
i40e_dcb_get_num_tc(struct i40e_dcbx_config
*dcbcfg
)
4286 /* Scan the ETS Config Priority Table to find
4287 * traffic class enabled for a given priority
4288 * and use the traffic class index to get the
4289 * number of traffic classes enabled
4291 for (i
= 0; i
< I40E_MAX_USER_PRIORITY
; i
++) {
4292 if (dcbcfg
->etscfg
.prioritytable
[i
] > num_tc
)
4293 num_tc
= dcbcfg
->etscfg
.prioritytable
[i
];
4296 /* Traffic class index starts from zero so
4297 * increment to return the actual count
4303 * i40e_dcb_get_enabled_tc - Get enabled traffic classes
4304 * @dcbcfg: the corresponding DCBx configuration structure
4306 * Query the current DCB configuration and return the number of
4307 * traffic classes enabled from the given DCBX config
4309 static u8
i40e_dcb_get_enabled_tc(struct i40e_dcbx_config
*dcbcfg
)
4311 u8 num_tc
= i40e_dcb_get_num_tc(dcbcfg
);
4315 for (i
= 0; i
< num_tc
; i
++)
4316 enabled_tc
|= BIT(i
);
4322 * i40e_pf_get_num_tc - Get enabled traffic classes for PF
4323 * @pf: PF being queried
4325 * Return number of traffic classes enabled for the given PF
4327 static u8
i40e_pf_get_num_tc(struct i40e_pf
*pf
)
4329 struct i40e_hw
*hw
= &pf
->hw
;
4332 struct i40e_dcbx_config
*dcbcfg
= &hw
->local_dcbx_config
;
4334 /* If DCB is not enabled then always in single TC */
4335 if (!(pf
->flags
& I40E_FLAG_DCB_ENABLED
))
4338 /* SFP mode will be enabled for all TCs on port */
4339 if (!(pf
->flags
& I40E_FLAG_MFP_ENABLED
))
4340 return i40e_dcb_get_num_tc(dcbcfg
);
4342 /* MFP mode return count of enabled TCs for this PF */
4343 if (pf
->hw
.func_caps
.iscsi
)
4344 enabled_tc
= i40e_get_iscsi_tc_map(pf
);
4346 return 1; /* Only TC0 */
4348 /* At least have TC0 */
4349 enabled_tc
= (enabled_tc
? enabled_tc
: 0x1);
4350 for (i
= 0; i
< I40E_MAX_TRAFFIC_CLASS
; i
++) {
4351 if (enabled_tc
& BIT_ULL(i
))
4358 * i40e_pf_get_default_tc - Get bitmap for first enabled TC
4359 * @pf: PF being queried
4361 * Return a bitmap for first enabled traffic class for this PF.
4363 static u8
i40e_pf_get_default_tc(struct i40e_pf
*pf
)
4365 u8 enabled_tc
= pf
->hw
.func_caps
.enabled_tcmap
;
4369 return 0x1; /* TC0 */
4371 /* Find the first enabled TC */
4372 for (i
= 0; i
< I40E_MAX_TRAFFIC_CLASS
; i
++) {
4373 if (enabled_tc
& BIT_ULL(i
))
4381 * i40e_pf_get_pf_tc_map - Get bitmap for enabled traffic classes
4382 * @pf: PF being queried
4384 * Return a bitmap for enabled traffic classes for this PF.
4386 static u8
i40e_pf_get_tc_map(struct i40e_pf
*pf
)
4388 /* If DCB is not enabled for this PF then just return default TC */
4389 if (!(pf
->flags
& I40E_FLAG_DCB_ENABLED
))
4390 return i40e_pf_get_default_tc(pf
);
4392 /* SFP mode we want PF to be enabled for all TCs */
4393 if (!(pf
->flags
& I40E_FLAG_MFP_ENABLED
))
4394 return i40e_dcb_get_enabled_tc(&pf
->hw
.local_dcbx_config
);
4396 /* MFP enabled and iSCSI PF type */
4397 if (pf
->hw
.func_caps
.iscsi
)
4398 return i40e_get_iscsi_tc_map(pf
);
4400 return i40e_pf_get_default_tc(pf
);
4404 * i40e_vsi_get_bw_info - Query VSI BW Information
4405 * @vsi: the VSI being queried
4407 * Returns 0 on success, negative value on failure
4409 static int i40e_vsi_get_bw_info(struct i40e_vsi
*vsi
)
4411 struct i40e_aqc_query_vsi_ets_sla_config_resp bw_ets_config
= {0};
4412 struct i40e_aqc_query_vsi_bw_config_resp bw_config
= {0};
4413 struct i40e_pf
*pf
= vsi
->back
;
4414 struct i40e_hw
*hw
= &pf
->hw
;
4419 /* Get the VSI level BW configuration */
4420 ret
= i40e_aq_query_vsi_bw_config(hw
, vsi
->seid
, &bw_config
, NULL
);
4422 dev_info(&pf
->pdev
->dev
,
4423 "couldn't get PF vsi bw config, err %s aq_err %s\n",
4424 i40e_stat_str(&pf
->hw
, ret
),
4425 i40e_aq_str(&pf
->hw
, pf
->hw
.aq
.asq_last_status
));
4429 /* Get the VSI level BW configuration per TC */
4430 ret
= i40e_aq_query_vsi_ets_sla_config(hw
, vsi
->seid
, &bw_ets_config
,
4433 dev_info(&pf
->pdev
->dev
,
4434 "couldn't get PF vsi ets bw config, err %s aq_err %s\n",
4435 i40e_stat_str(&pf
->hw
, ret
),
4436 i40e_aq_str(&pf
->hw
, pf
->hw
.aq
.asq_last_status
));
4440 if (bw_config
.tc_valid_bits
!= bw_ets_config
.tc_valid_bits
) {
4441 dev_info(&pf
->pdev
->dev
,
4442 "Enabled TCs mismatch from querying VSI BW info 0x%08x 0x%08x\n",
4443 bw_config
.tc_valid_bits
,
4444 bw_ets_config
.tc_valid_bits
);
4445 /* Still continuing */
4448 vsi
->bw_limit
= le16_to_cpu(bw_config
.port_bw_limit
);
4449 vsi
->bw_max_quanta
= bw_config
.max_bw
;
4450 tc_bw_max
= le16_to_cpu(bw_ets_config
.tc_bw_max
[0]) |
4451 (le16_to_cpu(bw_ets_config
.tc_bw_max
[1]) << 16);
4452 for (i
= 0; i
< I40E_MAX_TRAFFIC_CLASS
; i
++) {
4453 vsi
->bw_ets_share_credits
[i
] = bw_ets_config
.share_credits
[i
];
4454 vsi
->bw_ets_limit_credits
[i
] =
4455 le16_to_cpu(bw_ets_config
.credits
[i
]);
4456 /* 3 bits out of 4 for each TC */
4457 vsi
->bw_ets_max_quanta
[i
] = (u8
)((tc_bw_max
>> (i
*4)) & 0x7);
4464 * i40e_vsi_configure_bw_alloc - Configure VSI BW allocation per TC
4465 * @vsi: the VSI being configured
4466 * @enabled_tc: TC bitmap
4467 * @bw_credits: BW shared credits per TC
4469 * Returns 0 on success, negative value on failure
4471 static int i40e_vsi_configure_bw_alloc(struct i40e_vsi
*vsi
, u8 enabled_tc
,
4474 struct i40e_aqc_configure_vsi_tc_bw_data bw_data
;
4478 bw_data
.tc_valid_bits
= enabled_tc
;
4479 for (i
= 0; i
< I40E_MAX_TRAFFIC_CLASS
; i
++)
4480 bw_data
.tc_bw_credits
[i
] = bw_share
[i
];
4482 ret
= i40e_aq_config_vsi_tc_bw(&vsi
->back
->hw
, vsi
->seid
, &bw_data
,
4485 dev_info(&vsi
->back
->pdev
->dev
,
4486 "AQ command Config VSI BW allocation per TC failed = %d\n",
4487 vsi
->back
->hw
.aq
.asq_last_status
);
4491 for (i
= 0; i
< I40E_MAX_TRAFFIC_CLASS
; i
++)
4492 vsi
->info
.qs_handle
[i
] = bw_data
.qs_handles
[i
];
4498 * i40e_vsi_config_netdev_tc - Setup the netdev TC configuration
4499 * @vsi: the VSI being configured
4500 * @enabled_tc: TC map to be enabled
4503 static void i40e_vsi_config_netdev_tc(struct i40e_vsi
*vsi
, u8 enabled_tc
)
4505 struct net_device
*netdev
= vsi
->netdev
;
4506 struct i40e_pf
*pf
= vsi
->back
;
4507 struct i40e_hw
*hw
= &pf
->hw
;
4510 struct i40e_dcbx_config
*dcbcfg
= &hw
->local_dcbx_config
;
4516 netdev_reset_tc(netdev
);
4520 /* Set up actual enabled TCs on the VSI */
4521 if (netdev_set_num_tc(netdev
, vsi
->tc_config
.numtc
))
4524 /* set per TC queues for the VSI */
4525 for (i
= 0; i
< I40E_MAX_TRAFFIC_CLASS
; i
++) {
4526 /* Only set TC queues for enabled tcs
4528 * e.g. For a VSI that has TC0 and TC3 enabled the
4529 * enabled_tc bitmap would be 0x00001001; the driver
4530 * will set the numtc for netdev as 2 that will be
4531 * referenced by the netdev layer as TC 0 and 1.
4533 if (vsi
->tc_config
.enabled_tc
& BIT_ULL(i
))
4534 netdev_set_tc_queue(netdev
,
4535 vsi
->tc_config
.tc_info
[i
].netdev_tc
,
4536 vsi
->tc_config
.tc_info
[i
].qcount
,
4537 vsi
->tc_config
.tc_info
[i
].qoffset
);
4540 /* Assign UP2TC map for the VSI */
4541 for (i
= 0; i
< I40E_MAX_USER_PRIORITY
; i
++) {
4542 /* Get the actual TC# for the UP */
4543 u8 ets_tc
= dcbcfg
->etscfg
.prioritytable
[i
];
4544 /* Get the mapped netdev TC# for the UP */
4545 netdev_tc
= vsi
->tc_config
.tc_info
[ets_tc
].netdev_tc
;
4546 netdev_set_prio_tc_map(netdev
, i
, netdev_tc
);
4551 * i40e_vsi_update_queue_map - Update our copy of VSi info with new queue map
4552 * @vsi: the VSI being configured
4553 * @ctxt: the ctxt buffer returned from AQ VSI update param command
4555 static void i40e_vsi_update_queue_map(struct i40e_vsi
*vsi
,
4556 struct i40e_vsi_context
*ctxt
)
4558 /* copy just the sections touched not the entire info
4559 * since not all sections are valid as returned by
4562 vsi
->info
.mapping_flags
= ctxt
->info
.mapping_flags
;
4563 memcpy(&vsi
->info
.queue_mapping
,
4564 &ctxt
->info
.queue_mapping
, sizeof(vsi
->info
.queue_mapping
));
4565 memcpy(&vsi
->info
.tc_mapping
, ctxt
->info
.tc_mapping
,
4566 sizeof(vsi
->info
.tc_mapping
));
4570 * i40e_vsi_config_tc - Configure VSI Tx Scheduler for given TC map
4571 * @vsi: VSI to be configured
4572 * @enabled_tc: TC bitmap
4574 * This configures a particular VSI for TCs that are mapped to the
4575 * given TC bitmap. It uses default bandwidth share for TCs across
4576 * VSIs to configure TC for a particular VSI.
4579 * It is expected that the VSI queues have been quisced before calling
4582 static int i40e_vsi_config_tc(struct i40e_vsi
*vsi
, u8 enabled_tc
)
4584 u8 bw_share
[I40E_MAX_TRAFFIC_CLASS
] = {0};
4585 struct i40e_vsi_context ctxt
;
4589 /* Check if enabled_tc is same as existing or new TCs */
4590 if (vsi
->tc_config
.enabled_tc
== enabled_tc
)
4593 /* Enable ETS TCs with equal BW Share for now across all VSIs */
4594 for (i
= 0; i
< I40E_MAX_TRAFFIC_CLASS
; i
++) {
4595 if (enabled_tc
& BIT_ULL(i
))
4599 ret
= i40e_vsi_configure_bw_alloc(vsi
, enabled_tc
, bw_share
);
4601 dev_info(&vsi
->back
->pdev
->dev
,
4602 "Failed configuring TC map %d for VSI %d\n",
4603 enabled_tc
, vsi
->seid
);
4607 /* Update Queue Pairs Mapping for currently enabled UPs */
4608 ctxt
.seid
= vsi
->seid
;
4609 ctxt
.pf_num
= vsi
->back
->hw
.pf_id
;
4611 ctxt
.uplink_seid
= vsi
->uplink_seid
;
4612 ctxt
.info
= vsi
->info
;
4613 i40e_vsi_setup_queue_map(vsi
, &ctxt
, enabled_tc
, false);
4615 /* Update the VSI after updating the VSI queue-mapping information */
4616 ret
= i40e_aq_update_vsi_params(&vsi
->back
->hw
, &ctxt
, NULL
);
4618 dev_info(&vsi
->back
->pdev
->dev
,
4619 "Update vsi tc config failed, err %s aq_err %s\n",
4620 i40e_stat_str(&vsi
->back
->hw
, ret
),
4621 i40e_aq_str(&vsi
->back
->hw
,
4622 vsi
->back
->hw
.aq
.asq_last_status
));
4625 /* update the local VSI info with updated queue map */
4626 i40e_vsi_update_queue_map(vsi
, &ctxt
);
4627 vsi
->info
.valid_sections
= 0;
4629 /* Update current VSI BW information */
4630 ret
= i40e_vsi_get_bw_info(vsi
);
4632 dev_info(&vsi
->back
->pdev
->dev
,
4633 "Failed updating vsi bw info, err %s aq_err %s\n",
4634 i40e_stat_str(&vsi
->back
->hw
, ret
),
4635 i40e_aq_str(&vsi
->back
->hw
,
4636 vsi
->back
->hw
.aq
.asq_last_status
));
4640 /* Update the netdev TC setup */
4641 i40e_vsi_config_netdev_tc(vsi
, enabled_tc
);
4647 * i40e_veb_config_tc - Configure TCs for given VEB
4649 * @enabled_tc: TC bitmap
4651 * Configures given TC bitmap for VEB (switching) element
4653 int i40e_veb_config_tc(struct i40e_veb
*veb
, u8 enabled_tc
)
4655 struct i40e_aqc_configure_switching_comp_bw_config_data bw_data
= {0};
4656 struct i40e_pf
*pf
= veb
->pf
;
4660 /* No TCs or already enabled TCs just return */
4661 if (!enabled_tc
|| veb
->enabled_tc
== enabled_tc
)
4664 bw_data
.tc_valid_bits
= enabled_tc
;
4665 /* bw_data.absolute_credits is not set (relative) */
4667 /* Enable ETS TCs with equal BW Share for now */
4668 for (i
= 0; i
< I40E_MAX_TRAFFIC_CLASS
; i
++) {
4669 if (enabled_tc
& BIT_ULL(i
))
4670 bw_data
.tc_bw_share_credits
[i
] = 1;
4673 ret
= i40e_aq_config_switch_comp_bw_config(&pf
->hw
, veb
->seid
,
4676 dev_info(&pf
->pdev
->dev
,
4677 "VEB bw config failed, err %s aq_err %s\n",
4678 i40e_stat_str(&pf
->hw
, ret
),
4679 i40e_aq_str(&pf
->hw
, pf
->hw
.aq
.asq_last_status
));
4683 /* Update the BW information */
4684 ret
= i40e_veb_get_bw_info(veb
);
4686 dev_info(&pf
->pdev
->dev
,
4687 "Failed getting veb bw config, err %s aq_err %s\n",
4688 i40e_stat_str(&pf
->hw
, ret
),
4689 i40e_aq_str(&pf
->hw
, pf
->hw
.aq
.asq_last_status
));
4696 #ifdef CONFIG_I40E_DCB
4698 * i40e_dcb_reconfigure - Reconfigure all VEBs and VSIs
4701 * Reconfigure VEB/VSIs on a given PF; it is assumed that
4702 * the caller would've quiesce all the VSIs before calling
4705 static void i40e_dcb_reconfigure(struct i40e_pf
*pf
)
4711 /* Enable the TCs available on PF to all VEBs */
4712 tc_map
= i40e_pf_get_tc_map(pf
);
4713 for (v
= 0; v
< I40E_MAX_VEB
; v
++) {
4716 ret
= i40e_veb_config_tc(pf
->veb
[v
], tc_map
);
4718 dev_info(&pf
->pdev
->dev
,
4719 "Failed configuring TC for VEB seid=%d\n",
4721 /* Will try to configure as many components */
4725 /* Update each VSI */
4726 for (v
= 0; v
< pf
->num_alloc_vsi
; v
++) {
4730 /* - Enable all TCs for the LAN VSI
4732 * - For FCoE VSI only enable the TC configured
4733 * as per the APP TLV
4735 * - For all others keep them at TC0 for now
4737 if (v
== pf
->lan_vsi
)
4738 tc_map
= i40e_pf_get_tc_map(pf
);
4740 tc_map
= i40e_pf_get_default_tc(pf
);
4742 if (pf
->vsi
[v
]->type
== I40E_VSI_FCOE
)
4743 tc_map
= i40e_get_fcoe_tc_map(pf
);
4744 #endif /* #ifdef I40E_FCOE */
4746 ret
= i40e_vsi_config_tc(pf
->vsi
[v
], tc_map
);
4748 dev_info(&pf
->pdev
->dev
,
4749 "Failed configuring TC for VSI seid=%d\n",
4751 /* Will try to configure as many components */
4753 /* Re-configure VSI vectors based on updated TC map */
4754 i40e_vsi_map_rings_to_vectors(pf
->vsi
[v
]);
4755 if (pf
->vsi
[v
]->netdev
)
4756 i40e_dcbnl_set_all(pf
->vsi
[v
]);
4762 * i40e_resume_port_tx - Resume port Tx
4765 * Resume a port's Tx and issue a PF reset in case of failure to
4768 static int i40e_resume_port_tx(struct i40e_pf
*pf
)
4770 struct i40e_hw
*hw
= &pf
->hw
;
4773 ret
= i40e_aq_resume_port_tx(hw
, NULL
);
4775 dev_info(&pf
->pdev
->dev
,
4776 "Resume Port Tx failed, err %s aq_err %s\n",
4777 i40e_stat_str(&pf
->hw
, ret
),
4778 i40e_aq_str(&pf
->hw
, pf
->hw
.aq
.asq_last_status
));
4779 /* Schedule PF reset to recover */
4780 set_bit(__I40E_PF_RESET_REQUESTED
, &pf
->state
);
4781 i40e_service_event_schedule(pf
);
4788 * i40e_init_pf_dcb - Initialize DCB configuration
4789 * @pf: PF being configured
4791 * Query the current DCB configuration and cache it
4792 * in the hardware structure
4794 static int i40e_init_pf_dcb(struct i40e_pf
*pf
)
4796 struct i40e_hw
*hw
= &pf
->hw
;
4799 /* Do not enable DCB for SW1 and SW2 images even if the FW is capable */
4800 if (((pf
->hw
.aq
.fw_maj_ver
== 4) && (pf
->hw
.aq
.fw_min_ver
< 33)) ||
4801 (pf
->hw
.aq
.fw_maj_ver
< 4))
4804 /* Get the initial DCB configuration */
4805 err
= i40e_init_dcb(hw
);
4807 /* Device/Function is not DCBX capable */
4808 if ((!hw
->func_caps
.dcb
) ||
4809 (hw
->dcbx_status
== I40E_DCBX_STATUS_DISABLED
)) {
4810 dev_info(&pf
->pdev
->dev
,
4811 "DCBX offload is not supported or is disabled for this PF.\n");
4813 if (pf
->flags
& I40E_FLAG_MFP_ENABLED
)
4817 /* When status is not DISABLED then DCBX in FW */
4818 pf
->dcbx_cap
= DCB_CAP_DCBX_LLD_MANAGED
|
4819 DCB_CAP_DCBX_VER_IEEE
;
4821 pf
->flags
|= I40E_FLAG_DCB_CAPABLE
;
4822 /* Enable DCB tagging only when more than one TC */
4823 if (i40e_dcb_get_num_tc(&hw
->local_dcbx_config
) > 1)
4824 pf
->flags
|= I40E_FLAG_DCB_ENABLED
;
4825 dev_dbg(&pf
->pdev
->dev
,
4826 "DCBX offload is supported for this PF.\n");
4829 dev_info(&pf
->pdev
->dev
,
4830 "Query for DCB configuration failed, err %s aq_err %s\n",
4831 i40e_stat_str(&pf
->hw
, err
),
4832 i40e_aq_str(&pf
->hw
, pf
->hw
.aq
.asq_last_status
));
4838 #endif /* CONFIG_I40E_DCB */
4839 #define SPEED_SIZE 14
4842 * i40e_print_link_message - print link up or down
4843 * @vsi: the VSI for which link needs a message
4845 void i40e_print_link_message(struct i40e_vsi
*vsi
, bool isup
)
4847 char *speed
= "Unknown";
4848 char *fc
= "Unknown";
4850 if (vsi
->current_isup
== isup
)
4852 vsi
->current_isup
= isup
;
4854 netdev_info(vsi
->netdev
, "NIC Link is Down\n");
4858 /* Warn user if link speed on NPAR enabled partition is not at
4861 if (vsi
->back
->hw
.func_caps
.npar_enable
&&
4862 (vsi
->back
->hw
.phy
.link_info
.link_speed
== I40E_LINK_SPEED_1GB
||
4863 vsi
->back
->hw
.phy
.link_info
.link_speed
== I40E_LINK_SPEED_100MB
))
4864 netdev_warn(vsi
->netdev
,
4865 "The partition detected link speed that is less than 10Gbps\n");
4867 switch (vsi
->back
->hw
.phy
.link_info
.link_speed
) {
4868 case I40E_LINK_SPEED_40GB
:
4871 case I40E_LINK_SPEED_20GB
:
4874 case I40E_LINK_SPEED_10GB
:
4877 case I40E_LINK_SPEED_1GB
:
4880 case I40E_LINK_SPEED_100MB
:
4887 switch (vsi
->back
->hw
.fc
.current_mode
) {
4891 case I40E_FC_TX_PAUSE
:
4894 case I40E_FC_RX_PAUSE
:
4902 netdev_info(vsi
->netdev
, "NIC Link is Up %sbps Full Duplex, Flow Control: %s\n",
4907 * i40e_up_complete - Finish the last steps of bringing up a connection
4908 * @vsi: the VSI being configured
4910 static int i40e_up_complete(struct i40e_vsi
*vsi
)
4912 struct i40e_pf
*pf
= vsi
->back
;
4915 if (pf
->flags
& I40E_FLAG_MSIX_ENABLED
)
4916 i40e_vsi_configure_msix(vsi
);
4918 i40e_configure_msi_and_legacy(vsi
);
4921 err
= i40e_vsi_control_rings(vsi
, true);
4925 clear_bit(__I40E_DOWN
, &vsi
->state
);
4926 i40e_napi_enable_all(vsi
);
4927 i40e_vsi_enable_irq(vsi
);
4929 if ((pf
->hw
.phy
.link_info
.link_info
& I40E_AQ_LINK_UP
) &&
4931 i40e_print_link_message(vsi
, true);
4932 netif_tx_start_all_queues(vsi
->netdev
);
4933 netif_carrier_on(vsi
->netdev
);
4934 } else if (vsi
->netdev
) {
4935 i40e_print_link_message(vsi
, false);
4936 /* need to check for qualified module here*/
4937 if ((pf
->hw
.phy
.link_info
.link_info
&
4938 I40E_AQ_MEDIA_AVAILABLE
) &&
4939 (!(pf
->hw
.phy
.link_info
.an_info
&
4940 I40E_AQ_QUALIFIED_MODULE
)))
4941 netdev_err(vsi
->netdev
,
4942 "the driver failed to link because an unqualified module was detected.");
4945 /* replay FDIR SB filters */
4946 if (vsi
->type
== I40E_VSI_FDIR
) {
4947 /* reset fd counters */
4948 pf
->fd_add_err
= pf
->fd_atr_cnt
= 0;
4949 if (pf
->fd_tcp_rule
> 0) {
4950 pf
->flags
&= ~I40E_FLAG_FD_ATR_ENABLED
;
4951 if (I40E_DEBUG_FD
& pf
->hw
.debug_mask
)
4952 dev_info(&pf
->pdev
->dev
, "Forcing ATR off, sideband rules for TCP/IPv4 exist\n");
4953 pf
->fd_tcp_rule
= 0;
4955 i40e_fdir_filter_restore(vsi
);
4957 i40e_service_event_schedule(pf
);
4963 * i40e_vsi_reinit_locked - Reset the VSI
4964 * @vsi: the VSI being configured
4966 * Rebuild the ring structs after some configuration
4967 * has changed, e.g. MTU size.
4969 static void i40e_vsi_reinit_locked(struct i40e_vsi
*vsi
)
4971 struct i40e_pf
*pf
= vsi
->back
;
4973 WARN_ON(in_interrupt());
4974 while (test_and_set_bit(__I40E_CONFIG_BUSY
, &pf
->state
))
4975 usleep_range(1000, 2000);
4978 /* Give a VF some time to respond to the reset. The
4979 * two second wait is based upon the watchdog cycle in
4982 if (vsi
->type
== I40E_VSI_SRIOV
)
4985 clear_bit(__I40E_CONFIG_BUSY
, &pf
->state
);
4989 * i40e_up - Bring the connection back up after being down
4990 * @vsi: the VSI being configured
4992 int i40e_up(struct i40e_vsi
*vsi
)
4996 err
= i40e_vsi_configure(vsi
);
4998 err
= i40e_up_complete(vsi
);
5004 * i40e_down - Shutdown the connection processing
5005 * @vsi: the VSI being stopped
5007 void i40e_down(struct i40e_vsi
*vsi
)
5011 /* It is assumed that the caller of this function
5012 * sets the vsi->state __I40E_DOWN bit.
5015 netif_carrier_off(vsi
->netdev
);
5016 netif_tx_disable(vsi
->netdev
);
5018 i40e_vsi_disable_irq(vsi
);
5019 i40e_vsi_control_rings(vsi
, false);
5020 i40e_napi_disable_all(vsi
);
5022 for (i
= 0; i
< vsi
->num_queue_pairs
; i
++) {
5023 i40e_clean_tx_ring(vsi
->tx_rings
[i
]);
5024 i40e_clean_rx_ring(vsi
->rx_rings
[i
]);
5029 * i40e_setup_tc - configure multiple traffic classes
5030 * @netdev: net device to configure
5031 * @tc: number of traffic classes to enable
5034 int i40e_setup_tc(struct net_device
*netdev
, u8 tc
)
5036 static int i40e_setup_tc(struct net_device
*netdev
, u8 tc
)
5039 struct i40e_netdev_priv
*np
= netdev_priv(netdev
);
5040 struct i40e_vsi
*vsi
= np
->vsi
;
5041 struct i40e_pf
*pf
= vsi
->back
;
5046 /* Check if DCB enabled to continue */
5047 if (!(pf
->flags
& I40E_FLAG_DCB_ENABLED
)) {
5048 netdev_info(netdev
, "DCB is not enabled for adapter\n");
5052 /* Check if MFP enabled */
5053 if (pf
->flags
& I40E_FLAG_MFP_ENABLED
) {
5054 netdev_info(netdev
, "Configuring TC not supported in MFP mode\n");
5058 /* Check whether tc count is within enabled limit */
5059 if (tc
> i40e_pf_get_num_tc(pf
)) {
5060 netdev_info(netdev
, "TC count greater than enabled on link for adapter\n");
5064 /* Generate TC map for number of tc requested */
5065 for (i
= 0; i
< tc
; i
++)
5066 enabled_tc
|= BIT_ULL(i
);
5068 /* Requesting same TC configuration as already enabled */
5069 if (enabled_tc
== vsi
->tc_config
.enabled_tc
)
5072 /* Quiesce VSI queues */
5073 i40e_quiesce_vsi(vsi
);
5075 /* Configure VSI for enabled TCs */
5076 ret
= i40e_vsi_config_tc(vsi
, enabled_tc
);
5078 netdev_info(netdev
, "Failed configuring TC for VSI seid=%d\n",
5084 i40e_unquiesce_vsi(vsi
);
5091 * i40e_open - Called when a network interface is made active
5092 * @netdev: network interface device structure
5094 * The open entry point is called when a network interface is made
5095 * active by the system (IFF_UP). At this point all resources needed
5096 * for transmit and receive operations are allocated, the interrupt
5097 * handler is registered with the OS, the netdev watchdog subtask is
5098 * enabled, and the stack is notified that the interface is ready.
5100 * Returns 0 on success, negative value on failure
5102 int i40e_open(struct net_device
*netdev
)
5104 struct i40e_netdev_priv
*np
= netdev_priv(netdev
);
5105 struct i40e_vsi
*vsi
= np
->vsi
;
5106 struct i40e_pf
*pf
= vsi
->back
;
5109 /* disallow open during test or if eeprom is broken */
5110 if (test_bit(__I40E_TESTING
, &pf
->state
) ||
5111 test_bit(__I40E_BAD_EEPROM
, &pf
->state
))
5114 netif_carrier_off(netdev
);
5116 err
= i40e_vsi_open(vsi
);
5120 /* configure global TSO hardware offload settings */
5121 wr32(&pf
->hw
, I40E_GLLAN_TSOMSK_F
, be32_to_cpu(TCP_FLAG_PSH
|
5122 TCP_FLAG_FIN
) >> 16);
5123 wr32(&pf
->hw
, I40E_GLLAN_TSOMSK_M
, be32_to_cpu(TCP_FLAG_PSH
|
5125 TCP_FLAG_CWR
) >> 16);
5126 wr32(&pf
->hw
, I40E_GLLAN_TSOMSK_L
, be32_to_cpu(TCP_FLAG_CWR
) >> 16);
5128 #ifdef CONFIG_I40E_VXLAN
5129 vxlan_get_rx_port(netdev
);
5137 * @vsi: the VSI to open
5139 * Finish initialization of the VSI.
5141 * Returns 0 on success, negative value on failure
5143 int i40e_vsi_open(struct i40e_vsi
*vsi
)
5145 struct i40e_pf
*pf
= vsi
->back
;
5146 char int_name
[I40E_INT_NAME_STR_LEN
];
5149 /* allocate descriptors */
5150 err
= i40e_vsi_setup_tx_resources(vsi
);
5153 err
= i40e_vsi_setup_rx_resources(vsi
);
5157 err
= i40e_vsi_configure(vsi
);
5162 snprintf(int_name
, sizeof(int_name
) - 1, "%s-%s",
5163 dev_driver_string(&pf
->pdev
->dev
), vsi
->netdev
->name
);
5164 err
= i40e_vsi_request_irq(vsi
, int_name
);
5168 /* Notify the stack of the actual queue counts. */
5169 err
= netif_set_real_num_tx_queues(vsi
->netdev
,
5170 vsi
->num_queue_pairs
);
5172 goto err_set_queues
;
5174 err
= netif_set_real_num_rx_queues(vsi
->netdev
,
5175 vsi
->num_queue_pairs
);
5177 goto err_set_queues
;
5179 } else if (vsi
->type
== I40E_VSI_FDIR
) {
5180 snprintf(int_name
, sizeof(int_name
) - 1, "%s-%s:fdir",
5181 dev_driver_string(&pf
->pdev
->dev
),
5182 dev_name(&pf
->pdev
->dev
));
5183 err
= i40e_vsi_request_irq(vsi
, int_name
);
5190 err
= i40e_up_complete(vsi
);
5192 goto err_up_complete
;
5199 i40e_vsi_free_irq(vsi
);
5201 i40e_vsi_free_rx_resources(vsi
);
5203 i40e_vsi_free_tx_resources(vsi
);
5204 if (vsi
== pf
->vsi
[pf
->lan_vsi
])
5205 i40e_do_reset(pf
, BIT_ULL(__I40E_PF_RESET_REQUESTED
));
5211 * i40e_fdir_filter_exit - Cleans up the Flow Director accounting
5212 * @pf: Pointer to PF
5214 * This function destroys the hlist where all the Flow Director
5215 * filters were saved.
5217 static void i40e_fdir_filter_exit(struct i40e_pf
*pf
)
5219 struct i40e_fdir_filter
*filter
;
5220 struct hlist_node
*node2
;
5222 hlist_for_each_entry_safe(filter
, node2
,
5223 &pf
->fdir_filter_list
, fdir_node
) {
5224 hlist_del(&filter
->fdir_node
);
5227 pf
->fdir_pf_active_filters
= 0;
5231 * i40e_close - Disables a network interface
5232 * @netdev: network interface device structure
5234 * The close entry point is called when an interface is de-activated
5235 * by the OS. The hardware is still under the driver's control, but
5236 * this netdev interface is disabled.
5238 * Returns 0, this is not allowed to fail
5241 int i40e_close(struct net_device
*netdev
)
5243 static int i40e_close(struct net_device
*netdev
)
5246 struct i40e_netdev_priv
*np
= netdev_priv(netdev
);
5247 struct i40e_vsi
*vsi
= np
->vsi
;
5249 i40e_vsi_close(vsi
);
5255 * i40e_do_reset - Start a PF or Core Reset sequence
5256 * @pf: board private structure
5257 * @reset_flags: which reset is requested
5259 * The essential difference in resets is that the PF Reset
5260 * doesn't clear the packet buffers, doesn't reset the PE
5261 * firmware, and doesn't bother the other PFs on the chip.
5263 void i40e_do_reset(struct i40e_pf
*pf
, u32 reset_flags
)
5267 WARN_ON(in_interrupt());
5269 if (i40e_check_asq_alive(&pf
->hw
))
5270 i40e_vc_notify_reset(pf
);
5272 /* do the biggest reset indicated */
5273 if (reset_flags
& BIT_ULL(__I40E_GLOBAL_RESET_REQUESTED
)) {
5275 /* Request a Global Reset
5277 * This will start the chip's countdown to the actual full
5278 * chip reset event, and a warning interrupt to be sent
5279 * to all PFs, including the requestor. Our handler
5280 * for the warning interrupt will deal with the shutdown
5281 * and recovery of the switch setup.
5283 dev_dbg(&pf
->pdev
->dev
, "GlobalR requested\n");
5284 val
= rd32(&pf
->hw
, I40E_GLGEN_RTRIG
);
5285 val
|= I40E_GLGEN_RTRIG_GLOBR_MASK
;
5286 wr32(&pf
->hw
, I40E_GLGEN_RTRIG
, val
);
5288 } else if (reset_flags
& BIT_ULL(__I40E_CORE_RESET_REQUESTED
)) {
5290 /* Request a Core Reset
5292 * Same as Global Reset, except does *not* include the MAC/PHY
5294 dev_dbg(&pf
->pdev
->dev
, "CoreR requested\n");
5295 val
= rd32(&pf
->hw
, I40E_GLGEN_RTRIG
);
5296 val
|= I40E_GLGEN_RTRIG_CORER_MASK
;
5297 wr32(&pf
->hw
, I40E_GLGEN_RTRIG
, val
);
5298 i40e_flush(&pf
->hw
);
5300 } else if (reset_flags
& BIT_ULL(__I40E_PF_RESET_REQUESTED
)) {
5302 /* Request a PF Reset
5304 * Resets only the PF-specific registers
5306 * This goes directly to the tear-down and rebuild of
5307 * the switch, since we need to do all the recovery as
5308 * for the Core Reset.
5310 dev_dbg(&pf
->pdev
->dev
, "PFR requested\n");
5311 i40e_handle_reset_warning(pf
);
5313 } else if (reset_flags
& BIT_ULL(__I40E_REINIT_REQUESTED
)) {
5316 /* Find the VSI(s) that requested a re-init */
5317 dev_info(&pf
->pdev
->dev
,
5318 "VSI reinit requested\n");
5319 for (v
= 0; v
< pf
->num_alloc_vsi
; v
++) {
5320 struct i40e_vsi
*vsi
= pf
->vsi
[v
];
5323 test_bit(__I40E_REINIT_REQUESTED
, &vsi
->state
)) {
5324 i40e_vsi_reinit_locked(pf
->vsi
[v
]);
5325 clear_bit(__I40E_REINIT_REQUESTED
, &vsi
->state
);
5328 } else if (reset_flags
& BIT_ULL(__I40E_DOWN_REQUESTED
)) {
5331 /* Find the VSI(s) that needs to be brought down */
5332 dev_info(&pf
->pdev
->dev
, "VSI down requested\n");
5333 for (v
= 0; v
< pf
->num_alloc_vsi
; v
++) {
5334 struct i40e_vsi
*vsi
= pf
->vsi
[v
];
5337 test_bit(__I40E_DOWN_REQUESTED
, &vsi
->state
)) {
5338 set_bit(__I40E_DOWN
, &vsi
->state
);
5340 clear_bit(__I40E_DOWN_REQUESTED
, &vsi
->state
);
5344 dev_info(&pf
->pdev
->dev
,
5345 "bad reset request 0x%08x\n", reset_flags
);
5349 #ifdef CONFIG_I40E_DCB
5351 * i40e_dcb_need_reconfig - Check if DCB needs reconfig
5352 * @pf: board private structure
5353 * @old_cfg: current DCB config
5354 * @new_cfg: new DCB config
5356 bool i40e_dcb_need_reconfig(struct i40e_pf
*pf
,
5357 struct i40e_dcbx_config
*old_cfg
,
5358 struct i40e_dcbx_config
*new_cfg
)
5360 bool need_reconfig
= false;
5362 /* Check if ETS configuration has changed */
5363 if (memcmp(&new_cfg
->etscfg
,
5365 sizeof(new_cfg
->etscfg
))) {
5366 /* If Priority Table has changed reconfig is needed */
5367 if (memcmp(&new_cfg
->etscfg
.prioritytable
,
5368 &old_cfg
->etscfg
.prioritytable
,
5369 sizeof(new_cfg
->etscfg
.prioritytable
))) {
5370 need_reconfig
= true;
5371 dev_dbg(&pf
->pdev
->dev
, "ETS UP2TC changed.\n");
5374 if (memcmp(&new_cfg
->etscfg
.tcbwtable
,
5375 &old_cfg
->etscfg
.tcbwtable
,
5376 sizeof(new_cfg
->etscfg
.tcbwtable
)))
5377 dev_dbg(&pf
->pdev
->dev
, "ETS TC BW Table changed.\n");
5379 if (memcmp(&new_cfg
->etscfg
.tsatable
,
5380 &old_cfg
->etscfg
.tsatable
,
5381 sizeof(new_cfg
->etscfg
.tsatable
)))
5382 dev_dbg(&pf
->pdev
->dev
, "ETS TSA Table changed.\n");
5385 /* Check if PFC configuration has changed */
5386 if (memcmp(&new_cfg
->pfc
,
5388 sizeof(new_cfg
->pfc
))) {
5389 need_reconfig
= true;
5390 dev_dbg(&pf
->pdev
->dev
, "PFC config change detected.\n");
5393 /* Check if APP Table has changed */
5394 if (memcmp(&new_cfg
->app
,
5396 sizeof(new_cfg
->app
))) {
5397 need_reconfig
= true;
5398 dev_dbg(&pf
->pdev
->dev
, "APP Table change detected.\n");
5401 dev_dbg(&pf
->pdev
->dev
, "dcb need_reconfig=%d\n", need_reconfig
);
5402 return need_reconfig
;
5406 * i40e_handle_lldp_event - Handle LLDP Change MIB event
5407 * @pf: board private structure
5408 * @e: event info posted on ARQ
5410 static int i40e_handle_lldp_event(struct i40e_pf
*pf
,
5411 struct i40e_arq_event_info
*e
)
5413 struct i40e_aqc_lldp_get_mib
*mib
=
5414 (struct i40e_aqc_lldp_get_mib
*)&e
->desc
.params
.raw
;
5415 struct i40e_hw
*hw
= &pf
->hw
;
5416 struct i40e_dcbx_config tmp_dcbx_cfg
;
5417 bool need_reconfig
= false;
5421 /* Not DCB capable or capability disabled */
5422 if (!(pf
->flags
& I40E_FLAG_DCB_CAPABLE
))
5425 /* Ignore if event is not for Nearest Bridge */
5426 type
= ((mib
->type
>> I40E_AQ_LLDP_BRIDGE_TYPE_SHIFT
)
5427 & I40E_AQ_LLDP_BRIDGE_TYPE_MASK
);
5428 dev_dbg(&pf
->pdev
->dev
, "LLDP event mib bridge type 0x%x\n", type
);
5429 if (type
!= I40E_AQ_LLDP_BRIDGE_TYPE_NEAREST_BRIDGE
)
5432 /* Check MIB Type and return if event for Remote MIB update */
5433 type
= mib
->type
& I40E_AQ_LLDP_MIB_TYPE_MASK
;
5434 dev_dbg(&pf
->pdev
->dev
,
5435 "LLDP event mib type %s\n", type
? "remote" : "local");
5436 if (type
== I40E_AQ_LLDP_MIB_REMOTE
) {
5437 /* Update the remote cached instance and return */
5438 ret
= i40e_aq_get_dcb_config(hw
, I40E_AQ_LLDP_MIB_REMOTE
,
5439 I40E_AQ_LLDP_BRIDGE_TYPE_NEAREST_BRIDGE
,
5440 &hw
->remote_dcbx_config
);
5444 /* Store the old configuration */
5445 tmp_dcbx_cfg
= hw
->local_dcbx_config
;
5447 /* Reset the old DCBx configuration data */
5448 memset(&hw
->local_dcbx_config
, 0, sizeof(hw
->local_dcbx_config
));
5449 /* Get updated DCBX data from firmware */
5450 ret
= i40e_get_dcb_config(&pf
->hw
);
5452 dev_info(&pf
->pdev
->dev
,
5453 "Failed querying DCB configuration data from firmware, err %s aq_err %s\n",
5454 i40e_stat_str(&pf
->hw
, ret
),
5455 i40e_aq_str(&pf
->hw
, pf
->hw
.aq
.asq_last_status
));
5459 /* No change detected in DCBX configs */
5460 if (!memcmp(&tmp_dcbx_cfg
, &hw
->local_dcbx_config
,
5461 sizeof(tmp_dcbx_cfg
))) {
5462 dev_dbg(&pf
->pdev
->dev
, "No change detected in DCBX configuration.\n");
5466 need_reconfig
= i40e_dcb_need_reconfig(pf
, &tmp_dcbx_cfg
,
5467 &hw
->local_dcbx_config
);
5469 i40e_dcbnl_flush_apps(pf
, &tmp_dcbx_cfg
, &hw
->local_dcbx_config
);
5474 /* Enable DCB tagging only when more than one TC */
5475 if (i40e_dcb_get_num_tc(&hw
->local_dcbx_config
) > 1)
5476 pf
->flags
|= I40E_FLAG_DCB_ENABLED
;
5478 pf
->flags
&= ~I40E_FLAG_DCB_ENABLED
;
5480 set_bit(__I40E_PORT_TX_SUSPENDED
, &pf
->state
);
5481 /* Reconfiguration needed quiesce all VSIs */
5482 i40e_pf_quiesce_all_vsi(pf
);
5484 /* Changes in configuration update VEB/VSI */
5485 i40e_dcb_reconfigure(pf
);
5487 ret
= i40e_resume_port_tx(pf
);
5489 clear_bit(__I40E_PORT_TX_SUSPENDED
, &pf
->state
);
5490 /* In case of error no point in resuming VSIs */
5494 /* Wait for the PF's Tx queues to be disabled */
5495 ret
= i40e_pf_wait_txq_disabled(pf
);
5497 /* Schedule PF reset to recover */
5498 set_bit(__I40E_PF_RESET_REQUESTED
, &pf
->state
);
5499 i40e_service_event_schedule(pf
);
5501 i40e_pf_unquiesce_all_vsi(pf
);
5507 #endif /* CONFIG_I40E_DCB */
5510 * i40e_do_reset_safe - Protected reset path for userland calls.
5511 * @pf: board private structure
5512 * @reset_flags: which reset is requested
5515 void i40e_do_reset_safe(struct i40e_pf
*pf
, u32 reset_flags
)
5518 i40e_do_reset(pf
, reset_flags
);
5523 * i40e_handle_lan_overflow_event - Handler for LAN queue overflow event
5524 * @pf: board private structure
5525 * @e: event info posted on ARQ
5527 * Handler for LAN Queue Overflow Event generated by the firmware for PF
5530 static void i40e_handle_lan_overflow_event(struct i40e_pf
*pf
,
5531 struct i40e_arq_event_info
*e
)
5533 struct i40e_aqc_lan_overflow
*data
=
5534 (struct i40e_aqc_lan_overflow
*)&e
->desc
.params
.raw
;
5535 u32 queue
= le32_to_cpu(data
->prtdcb_rupto
);
5536 u32 qtx_ctl
= le32_to_cpu(data
->otx_ctl
);
5537 struct i40e_hw
*hw
= &pf
->hw
;
5541 dev_dbg(&pf
->pdev
->dev
, "overflow Rx Queue Number = %d QTX_CTL=0x%08x\n",
5544 /* Queue belongs to VF, find the VF and issue VF reset */
5545 if (((qtx_ctl
& I40E_QTX_CTL_PFVF_Q_MASK
)
5546 >> I40E_QTX_CTL_PFVF_Q_SHIFT
) == I40E_QTX_CTL_VF_QUEUE
) {
5547 vf_id
= (u16
)((qtx_ctl
& I40E_QTX_CTL_VFVM_INDX_MASK
)
5548 >> I40E_QTX_CTL_VFVM_INDX_SHIFT
);
5549 vf_id
-= hw
->func_caps
.vf_base_id
;
5550 vf
= &pf
->vf
[vf_id
];
5551 i40e_vc_notify_vf_reset(vf
);
5552 /* Allow VF to process pending reset notification */
5554 i40e_reset_vf(vf
, false);
5559 * i40e_service_event_complete - Finish up the service event
5560 * @pf: board private structure
5562 static void i40e_service_event_complete(struct i40e_pf
*pf
)
5564 BUG_ON(!test_bit(__I40E_SERVICE_SCHED
, &pf
->state
));
5566 /* flush memory to make sure state is correct before next watchog */
5567 smp_mb__before_atomic();
5568 clear_bit(__I40E_SERVICE_SCHED
, &pf
->state
);
5572 * i40e_get_cur_guaranteed_fd_count - Get the consumed guaranteed FD filters
5573 * @pf: board private structure
5575 u32
i40e_get_cur_guaranteed_fd_count(struct i40e_pf
*pf
)
5579 val
= rd32(&pf
->hw
, I40E_PFQF_FDSTAT
);
5580 fcnt_prog
= (val
& I40E_PFQF_FDSTAT_GUARANT_CNT_MASK
);
5585 * i40e_get_current_fd_count - Get total FD filters programmed for this PF
5586 * @pf: board private structure
5588 u32
i40e_get_current_fd_count(struct i40e_pf
*pf
)
5592 val
= rd32(&pf
->hw
, I40E_PFQF_FDSTAT
);
5593 fcnt_prog
= (val
& I40E_PFQF_FDSTAT_GUARANT_CNT_MASK
) +
5594 ((val
& I40E_PFQF_FDSTAT_BEST_CNT_MASK
) >>
5595 I40E_PFQF_FDSTAT_BEST_CNT_SHIFT
);
5600 * i40e_get_global_fd_count - Get total FD filters programmed on device
5601 * @pf: board private structure
5603 u32
i40e_get_global_fd_count(struct i40e_pf
*pf
)
5607 val
= rd32(&pf
->hw
, I40E_GLQF_FDCNT_0
);
5608 fcnt_prog
= (val
& I40E_GLQF_FDCNT_0_GUARANT_CNT_MASK
) +
5609 ((val
& I40E_GLQF_FDCNT_0_BESTCNT_MASK
) >>
5610 I40E_GLQF_FDCNT_0_BESTCNT_SHIFT
);
5615 * i40e_fdir_check_and_reenable - Function to reenabe FD ATR or SB if disabled
5616 * @pf: board private structure
5618 void i40e_fdir_check_and_reenable(struct i40e_pf
*pf
)
5620 struct i40e_fdir_filter
*filter
;
5621 u32 fcnt_prog
, fcnt_avail
;
5622 struct hlist_node
*node
;
5624 if (test_bit(__I40E_FD_FLUSH_REQUESTED
, &pf
->state
))
5627 /* Check if, FD SB or ATR was auto disabled and if there is enough room
5630 fcnt_prog
= i40e_get_global_fd_count(pf
);
5631 fcnt_avail
= pf
->fdir_pf_filter_count
;
5632 if ((fcnt_prog
< (fcnt_avail
- I40E_FDIR_BUFFER_HEAD_ROOM
)) ||
5633 (pf
->fd_add_err
== 0) ||
5634 (i40e_get_current_atr_cnt(pf
) < pf
->fd_atr_cnt
)) {
5635 if ((pf
->flags
& I40E_FLAG_FD_SB_ENABLED
) &&
5636 (pf
->auto_disable_flags
& I40E_FLAG_FD_SB_ENABLED
)) {
5637 pf
->auto_disable_flags
&= ~I40E_FLAG_FD_SB_ENABLED
;
5638 if (I40E_DEBUG_FD
& pf
->hw
.debug_mask
)
5639 dev_info(&pf
->pdev
->dev
, "FD Sideband/ntuple is being enabled since we have space in the table now\n");
5642 /* Wait for some more space to be available to turn on ATR */
5643 if (fcnt_prog
< (fcnt_avail
- I40E_FDIR_BUFFER_HEAD_ROOM
* 2)) {
5644 if ((pf
->flags
& I40E_FLAG_FD_ATR_ENABLED
) &&
5645 (pf
->auto_disable_flags
& I40E_FLAG_FD_ATR_ENABLED
)) {
5646 pf
->auto_disable_flags
&= ~I40E_FLAG_FD_ATR_ENABLED
;
5647 if (I40E_DEBUG_FD
& pf
->hw
.debug_mask
)
5648 dev_info(&pf
->pdev
->dev
, "ATR is being enabled since we have space in the table now\n");
5652 /* if hw had a problem adding a filter, delete it */
5653 if (pf
->fd_inv
> 0) {
5654 hlist_for_each_entry_safe(filter
, node
,
5655 &pf
->fdir_filter_list
, fdir_node
) {
5656 if (filter
->fd_id
== pf
->fd_inv
) {
5657 hlist_del(&filter
->fdir_node
);
5659 pf
->fdir_pf_active_filters
--;
5665 #define I40E_MIN_FD_FLUSH_INTERVAL 10
5666 #define I40E_MIN_FD_FLUSH_SB_ATR_UNSTABLE 30
5668 * i40e_fdir_flush_and_replay - Function to flush all FD filters and replay SB
5669 * @pf: board private structure
5671 static void i40e_fdir_flush_and_replay(struct i40e_pf
*pf
)
5673 unsigned long min_flush_time
;
5674 int flush_wait_retry
= 50;
5675 bool disable_atr
= false;
5679 if (!(pf
->flags
& (I40E_FLAG_FD_SB_ENABLED
| I40E_FLAG_FD_ATR_ENABLED
)))
5682 if (!time_after(jiffies
, pf
->fd_flush_timestamp
+
5683 (I40E_MIN_FD_FLUSH_INTERVAL
* HZ
)))
5686 /* If the flush is happening too quick and we have mostly SB rules we
5687 * should not re-enable ATR for some time.
5689 min_flush_time
= pf
->fd_flush_timestamp
+
5690 (I40E_MIN_FD_FLUSH_SB_ATR_UNSTABLE
* HZ
);
5691 fd_room
= pf
->fdir_pf_filter_count
- pf
->fdir_pf_active_filters
;
5693 if (!(time_after(jiffies
, min_flush_time
)) &&
5694 (fd_room
< I40E_FDIR_BUFFER_HEAD_ROOM_FOR_ATR
)) {
5695 if (I40E_DEBUG_FD
& pf
->hw
.debug_mask
)
5696 dev_info(&pf
->pdev
->dev
, "ATR disabled, not enough FD filter space.\n");
5700 pf
->fd_flush_timestamp
= jiffies
;
5701 pf
->flags
&= ~I40E_FLAG_FD_ATR_ENABLED
;
5702 /* flush all filters */
5703 wr32(&pf
->hw
, I40E_PFQF_CTL_1
,
5704 I40E_PFQF_CTL_1_CLEARFDTABLE_MASK
);
5705 i40e_flush(&pf
->hw
);
5709 /* Check FD flush status every 5-6msec */
5710 usleep_range(5000, 6000);
5711 reg
= rd32(&pf
->hw
, I40E_PFQF_CTL_1
);
5712 if (!(reg
& I40E_PFQF_CTL_1_CLEARFDTABLE_MASK
))
5714 } while (flush_wait_retry
--);
5715 if (reg
& I40E_PFQF_CTL_1_CLEARFDTABLE_MASK
) {
5716 dev_warn(&pf
->pdev
->dev
, "FD table did not flush, needs more time\n");
5718 /* replay sideband filters */
5719 i40e_fdir_filter_restore(pf
->vsi
[pf
->lan_vsi
]);
5721 pf
->flags
|= I40E_FLAG_FD_ATR_ENABLED
;
5722 clear_bit(__I40E_FD_FLUSH_REQUESTED
, &pf
->state
);
5723 if (I40E_DEBUG_FD
& pf
->hw
.debug_mask
)
5724 dev_info(&pf
->pdev
->dev
, "FD Filter table flushed and FD-SB replayed.\n");
5730 * i40e_get_current_atr_count - Get the count of total FD ATR filters programmed
5731 * @pf: board private structure
5733 u32
i40e_get_current_atr_cnt(struct i40e_pf
*pf
)
5735 return i40e_get_current_fd_count(pf
) - pf
->fdir_pf_active_filters
;
5738 /* We can see up to 256 filter programming desc in transit if the filters are
5739 * being applied really fast; before we see the first
5740 * filter miss error on Rx queue 0. Accumulating enough error messages before
5741 * reacting will make sure we don't cause flush too often.
5743 #define I40E_MAX_FD_PROGRAM_ERROR 256
5746 * i40e_fdir_reinit_subtask - Worker thread to reinit FDIR filter table
5747 * @pf: board private structure
5749 static void i40e_fdir_reinit_subtask(struct i40e_pf
*pf
)
5752 /* if interface is down do nothing */
5753 if (test_bit(__I40E_DOWN
, &pf
->state
))
5756 if (!(pf
->flags
& (I40E_FLAG_FD_SB_ENABLED
| I40E_FLAG_FD_ATR_ENABLED
)))
5759 if (test_bit(__I40E_FD_FLUSH_REQUESTED
, &pf
->state
))
5760 i40e_fdir_flush_and_replay(pf
);
5762 i40e_fdir_check_and_reenable(pf
);
5767 * i40e_vsi_link_event - notify VSI of a link event
5768 * @vsi: vsi to be notified
5769 * @link_up: link up or down
5771 static void i40e_vsi_link_event(struct i40e_vsi
*vsi
, bool link_up
)
5773 if (!vsi
|| test_bit(__I40E_DOWN
, &vsi
->state
))
5776 switch (vsi
->type
) {
5781 if (!vsi
->netdev
|| !vsi
->netdev_registered
)
5785 netif_carrier_on(vsi
->netdev
);
5786 netif_tx_wake_all_queues(vsi
->netdev
);
5788 netif_carrier_off(vsi
->netdev
);
5789 netif_tx_stop_all_queues(vsi
->netdev
);
5793 case I40E_VSI_SRIOV
:
5794 case I40E_VSI_VMDQ2
:
5796 case I40E_VSI_MIRROR
:
5798 /* there is no notification for other VSIs */
5804 * i40e_veb_link_event - notify elements on the veb of a link event
5805 * @veb: veb to be notified
5806 * @link_up: link up or down
5808 static void i40e_veb_link_event(struct i40e_veb
*veb
, bool link_up
)
5813 if (!veb
|| !veb
->pf
)
5817 /* depth first... */
5818 for (i
= 0; i
< I40E_MAX_VEB
; i
++)
5819 if (pf
->veb
[i
] && (pf
->veb
[i
]->uplink_seid
== veb
->seid
))
5820 i40e_veb_link_event(pf
->veb
[i
], link_up
);
5822 /* ... now the local VSIs */
5823 for (i
= 0; i
< pf
->num_alloc_vsi
; i
++)
5824 if (pf
->vsi
[i
] && (pf
->vsi
[i
]->uplink_seid
== veb
->seid
))
5825 i40e_vsi_link_event(pf
->vsi
[i
], link_up
);
5829 * i40e_link_event - Update netif_carrier status
5830 * @pf: board private structure
5832 static void i40e_link_event(struct i40e_pf
*pf
)
5834 struct i40e_vsi
*vsi
= pf
->vsi
[pf
->lan_vsi
];
5835 u8 new_link_speed
, old_link_speed
;
5837 bool new_link
, old_link
;
5839 /* set this to force the get_link_status call to refresh state */
5840 pf
->hw
.phy
.get_link_info
= true;
5842 old_link
= (pf
->hw
.phy
.link_info_old
.link_info
& I40E_AQ_LINK_UP
);
5844 status
= i40e_get_link_status(&pf
->hw
, &new_link
);
5846 dev_dbg(&pf
->pdev
->dev
, "couldn't get link state, status: %d\n",
5851 old_link_speed
= pf
->hw
.phy
.link_info_old
.link_speed
;
5852 new_link_speed
= pf
->hw
.phy
.link_info
.link_speed
;
5854 if (new_link
== old_link
&&
5855 new_link_speed
== old_link_speed
&&
5856 (test_bit(__I40E_DOWN
, &vsi
->state
) ||
5857 new_link
== netif_carrier_ok(vsi
->netdev
)))
5860 if (!test_bit(__I40E_DOWN
, &vsi
->state
))
5861 i40e_print_link_message(vsi
, new_link
);
5863 /* Notify the base of the switch tree connected to
5864 * the link. Floating VEBs are not notified.
5866 if (pf
->lan_veb
!= I40E_NO_VEB
&& pf
->veb
[pf
->lan_veb
])
5867 i40e_veb_link_event(pf
->veb
[pf
->lan_veb
], new_link
);
5869 i40e_vsi_link_event(vsi
, new_link
);
5872 i40e_vc_notify_link_state(pf
);
5874 if (pf
->flags
& I40E_FLAG_PTP
)
5875 i40e_ptp_set_increment(pf
);
5879 * i40e_watchdog_subtask - periodic checks not using event driven response
5880 * @pf: board private structure
5882 static void i40e_watchdog_subtask(struct i40e_pf
*pf
)
5886 /* if interface is down do nothing */
5887 if (test_bit(__I40E_DOWN
, &pf
->state
) ||
5888 test_bit(__I40E_CONFIG_BUSY
, &pf
->state
))
5891 /* make sure we don't do these things too often */
5892 if (time_before(jiffies
, (pf
->service_timer_previous
+
5893 pf
->service_timer_period
)))
5895 pf
->service_timer_previous
= jiffies
;
5897 if (pf
->flags
& I40E_FLAG_LINK_POLLING_ENABLED
)
5898 i40e_link_event(pf
);
5900 /* Update the stats for active netdevs so the network stack
5901 * can look at updated numbers whenever it cares to
5903 for (i
= 0; i
< pf
->num_alloc_vsi
; i
++)
5904 if (pf
->vsi
[i
] && pf
->vsi
[i
]->netdev
)
5905 i40e_update_stats(pf
->vsi
[i
]);
5907 if (pf
->flags
& I40E_FLAG_VEB_STATS_ENABLED
) {
5908 /* Update the stats for the active switching components */
5909 for (i
= 0; i
< I40E_MAX_VEB
; i
++)
5911 i40e_update_veb_stats(pf
->veb
[i
]);
5914 i40e_ptp_rx_hang(pf
->vsi
[pf
->lan_vsi
]);
5918 * i40e_reset_subtask - Set up for resetting the device and driver
5919 * @pf: board private structure
5921 static void i40e_reset_subtask(struct i40e_pf
*pf
)
5923 u32 reset_flags
= 0;
5926 if (test_bit(__I40E_REINIT_REQUESTED
, &pf
->state
)) {
5927 reset_flags
|= BIT_ULL(__I40E_REINIT_REQUESTED
);
5928 clear_bit(__I40E_REINIT_REQUESTED
, &pf
->state
);
5930 if (test_bit(__I40E_PF_RESET_REQUESTED
, &pf
->state
)) {
5931 reset_flags
|= BIT_ULL(__I40E_PF_RESET_REQUESTED
);
5932 clear_bit(__I40E_PF_RESET_REQUESTED
, &pf
->state
);
5934 if (test_bit(__I40E_CORE_RESET_REQUESTED
, &pf
->state
)) {
5935 reset_flags
|= BIT_ULL(__I40E_CORE_RESET_REQUESTED
);
5936 clear_bit(__I40E_CORE_RESET_REQUESTED
, &pf
->state
);
5938 if (test_bit(__I40E_GLOBAL_RESET_REQUESTED
, &pf
->state
)) {
5939 reset_flags
|= BIT_ULL(__I40E_GLOBAL_RESET_REQUESTED
);
5940 clear_bit(__I40E_GLOBAL_RESET_REQUESTED
, &pf
->state
);
5942 if (test_bit(__I40E_DOWN_REQUESTED
, &pf
->state
)) {
5943 reset_flags
|= BIT_ULL(__I40E_DOWN_REQUESTED
);
5944 clear_bit(__I40E_DOWN_REQUESTED
, &pf
->state
);
5947 /* If there's a recovery already waiting, it takes
5948 * precedence before starting a new reset sequence.
5950 if (test_bit(__I40E_RESET_INTR_RECEIVED
, &pf
->state
)) {
5951 i40e_handle_reset_warning(pf
);
5955 /* If we're already down or resetting, just bail */
5957 !test_bit(__I40E_DOWN
, &pf
->state
) &&
5958 !test_bit(__I40E_CONFIG_BUSY
, &pf
->state
))
5959 i40e_do_reset(pf
, reset_flags
);
5966 * i40e_handle_link_event - Handle link event
5967 * @pf: board private structure
5968 * @e: event info posted on ARQ
5970 static void i40e_handle_link_event(struct i40e_pf
*pf
,
5971 struct i40e_arq_event_info
*e
)
5973 struct i40e_hw
*hw
= &pf
->hw
;
5974 struct i40e_aqc_get_link_status
*status
=
5975 (struct i40e_aqc_get_link_status
*)&e
->desc
.params
.raw
;
5977 /* save off old link status information */
5978 hw
->phy
.link_info_old
= hw
->phy
.link_info
;
5980 /* Do a new status request to re-enable LSE reporting
5981 * and load new status information into the hw struct
5982 * This completely ignores any state information
5983 * in the ARQ event info, instead choosing to always
5984 * issue the AQ update link status command.
5986 i40e_link_event(pf
);
5988 /* check for unqualified module, if link is down */
5989 if ((status
->link_info
& I40E_AQ_MEDIA_AVAILABLE
) &&
5990 (!(status
->an_info
& I40E_AQ_QUALIFIED_MODULE
)) &&
5991 (!(status
->link_info
& I40E_AQ_LINK_UP
)))
5992 dev_err(&pf
->pdev
->dev
,
5993 "The driver failed to link because an unqualified module was detected.\n");
5997 * i40e_clean_adminq_subtask - Clean the AdminQ rings
5998 * @pf: board private structure
6000 static void i40e_clean_adminq_subtask(struct i40e_pf
*pf
)
6002 struct i40e_arq_event_info event
;
6003 struct i40e_hw
*hw
= &pf
->hw
;
6010 /* Do not run clean AQ when PF reset fails */
6011 if (test_bit(__I40E_RESET_FAILED
, &pf
->state
))
6014 /* check for error indications */
6015 val
= rd32(&pf
->hw
, pf
->hw
.aq
.arq
.len
);
6017 if (val
& I40E_PF_ARQLEN_ARQVFE_MASK
) {
6018 dev_info(&pf
->pdev
->dev
, "ARQ VF Error detected\n");
6019 val
&= ~I40E_PF_ARQLEN_ARQVFE_MASK
;
6021 if (val
& I40E_PF_ARQLEN_ARQOVFL_MASK
) {
6022 dev_info(&pf
->pdev
->dev
, "ARQ Overflow Error detected\n");
6023 val
&= ~I40E_PF_ARQLEN_ARQOVFL_MASK
;
6025 if (val
& I40E_PF_ARQLEN_ARQCRIT_MASK
) {
6026 dev_info(&pf
->pdev
->dev
, "ARQ Critical Error detected\n");
6027 val
&= ~I40E_PF_ARQLEN_ARQCRIT_MASK
;
6030 wr32(&pf
->hw
, pf
->hw
.aq
.arq
.len
, val
);
6032 val
= rd32(&pf
->hw
, pf
->hw
.aq
.asq
.len
);
6034 if (val
& I40E_PF_ATQLEN_ATQVFE_MASK
) {
6035 dev_info(&pf
->pdev
->dev
, "ASQ VF Error detected\n");
6036 val
&= ~I40E_PF_ATQLEN_ATQVFE_MASK
;
6038 if (val
& I40E_PF_ATQLEN_ATQOVFL_MASK
) {
6039 dev_info(&pf
->pdev
->dev
, "ASQ Overflow Error detected\n");
6040 val
&= ~I40E_PF_ATQLEN_ATQOVFL_MASK
;
6042 if (val
& I40E_PF_ATQLEN_ATQCRIT_MASK
) {
6043 dev_info(&pf
->pdev
->dev
, "ASQ Critical Error detected\n");
6044 val
&= ~I40E_PF_ATQLEN_ATQCRIT_MASK
;
6047 wr32(&pf
->hw
, pf
->hw
.aq
.asq
.len
, val
);
6049 event
.buf_len
= I40E_MAX_AQ_BUF_SIZE
;
6050 event
.msg_buf
= kzalloc(event
.buf_len
, GFP_KERNEL
);
6055 ret
= i40e_clean_arq_element(hw
, &event
, &pending
);
6056 if (ret
== I40E_ERR_ADMIN_QUEUE_NO_WORK
)
6059 dev_info(&pf
->pdev
->dev
, "ARQ event error %d\n", ret
);
6063 opcode
= le16_to_cpu(event
.desc
.opcode
);
6066 case i40e_aqc_opc_get_link_status
:
6067 i40e_handle_link_event(pf
, &event
);
6069 case i40e_aqc_opc_send_msg_to_pf
:
6070 ret
= i40e_vc_process_vf_msg(pf
,
6071 le16_to_cpu(event
.desc
.retval
),
6072 le32_to_cpu(event
.desc
.cookie_high
),
6073 le32_to_cpu(event
.desc
.cookie_low
),
6077 case i40e_aqc_opc_lldp_update_mib
:
6078 dev_dbg(&pf
->pdev
->dev
, "ARQ: Update LLDP MIB event received\n");
6079 #ifdef CONFIG_I40E_DCB
6081 ret
= i40e_handle_lldp_event(pf
, &event
);
6083 #endif /* CONFIG_I40E_DCB */
6085 case i40e_aqc_opc_event_lan_overflow
:
6086 dev_dbg(&pf
->pdev
->dev
, "ARQ LAN queue overflow event received\n");
6087 i40e_handle_lan_overflow_event(pf
, &event
);
6089 case i40e_aqc_opc_send_msg_to_peer
:
6090 dev_info(&pf
->pdev
->dev
, "ARQ: Msg from other pf\n");
6092 case i40e_aqc_opc_nvm_erase
:
6093 case i40e_aqc_opc_nvm_update
:
6094 i40e_debug(&pf
->hw
, I40E_DEBUG_NVM
, "ARQ NVM operation completed\n");
6097 dev_info(&pf
->pdev
->dev
,
6098 "ARQ Error: Unknown event 0x%04x received\n",
6102 } while (pending
&& (i
++ < pf
->adminq_work_limit
));
6104 clear_bit(__I40E_ADMINQ_EVENT_PENDING
, &pf
->state
);
6105 /* re-enable Admin queue interrupt cause */
6106 val
= rd32(hw
, I40E_PFINT_ICR0_ENA
);
6107 val
|= I40E_PFINT_ICR0_ENA_ADMINQ_MASK
;
6108 wr32(hw
, I40E_PFINT_ICR0_ENA
, val
);
6111 kfree(event
.msg_buf
);
6115 * i40e_verify_eeprom - make sure eeprom is good to use
6116 * @pf: board private structure
6118 static void i40e_verify_eeprom(struct i40e_pf
*pf
)
6122 err
= i40e_diag_eeprom_test(&pf
->hw
);
6124 /* retry in case of garbage read */
6125 err
= i40e_diag_eeprom_test(&pf
->hw
);
6127 dev_info(&pf
->pdev
->dev
, "eeprom check failed (%d), Tx/Rx traffic disabled\n",
6129 set_bit(__I40E_BAD_EEPROM
, &pf
->state
);
6133 if (!err
&& test_bit(__I40E_BAD_EEPROM
, &pf
->state
)) {
6134 dev_info(&pf
->pdev
->dev
, "eeprom check passed, Tx/Rx traffic enabled\n");
6135 clear_bit(__I40E_BAD_EEPROM
, &pf
->state
);
6140 * i40e_enable_pf_switch_lb
6141 * @pf: pointer to the PF structure
6143 * enable switch loop back or die - no point in a return value
6145 static void i40e_enable_pf_switch_lb(struct i40e_pf
*pf
)
6147 struct i40e_vsi
*vsi
= pf
->vsi
[pf
->lan_vsi
];
6148 struct i40e_vsi_context ctxt
;
6151 ctxt
.seid
= pf
->main_vsi_seid
;
6152 ctxt
.pf_num
= pf
->hw
.pf_id
;
6154 ret
= i40e_aq_get_vsi_params(&pf
->hw
, &ctxt
, NULL
);
6156 dev_info(&pf
->pdev
->dev
,
6157 "couldn't get PF vsi config, err %s aq_err %s\n",
6158 i40e_stat_str(&pf
->hw
, ret
),
6159 i40e_aq_str(&pf
->hw
, pf
->hw
.aq
.asq_last_status
));
6162 ctxt
.flags
= I40E_AQ_VSI_TYPE_PF
;
6163 ctxt
.info
.valid_sections
= cpu_to_le16(I40E_AQ_VSI_PROP_SWITCH_VALID
);
6164 ctxt
.info
.switch_id
|= cpu_to_le16(I40E_AQ_VSI_SW_ID_FLAG_ALLOW_LB
);
6166 ret
= i40e_aq_update_vsi_params(&vsi
->back
->hw
, &ctxt
, NULL
);
6168 dev_info(&pf
->pdev
->dev
,
6169 "update vsi switch failed, err %s aq_err %s\n",
6170 i40e_stat_str(&pf
->hw
, ret
),
6171 i40e_aq_str(&pf
->hw
, pf
->hw
.aq
.asq_last_status
));
6176 * i40e_disable_pf_switch_lb
6177 * @pf: pointer to the PF structure
6179 * disable switch loop back or die - no point in a return value
6181 static void i40e_disable_pf_switch_lb(struct i40e_pf
*pf
)
6183 struct i40e_vsi
*vsi
= pf
->vsi
[pf
->lan_vsi
];
6184 struct i40e_vsi_context ctxt
;
6187 ctxt
.seid
= pf
->main_vsi_seid
;
6188 ctxt
.pf_num
= pf
->hw
.pf_id
;
6190 ret
= i40e_aq_get_vsi_params(&pf
->hw
, &ctxt
, NULL
);
6192 dev_info(&pf
->pdev
->dev
,
6193 "couldn't get PF vsi config, err %s aq_err %s\n",
6194 i40e_stat_str(&pf
->hw
, ret
),
6195 i40e_aq_str(&pf
->hw
, pf
->hw
.aq
.asq_last_status
));
6198 ctxt
.flags
= I40E_AQ_VSI_TYPE_PF
;
6199 ctxt
.info
.valid_sections
= cpu_to_le16(I40E_AQ_VSI_PROP_SWITCH_VALID
);
6200 ctxt
.info
.switch_id
&= ~cpu_to_le16(I40E_AQ_VSI_SW_ID_FLAG_ALLOW_LB
);
6202 ret
= i40e_aq_update_vsi_params(&vsi
->back
->hw
, &ctxt
, NULL
);
6204 dev_info(&pf
->pdev
->dev
,
6205 "update vsi switch failed, err %s aq_err %s\n",
6206 i40e_stat_str(&pf
->hw
, ret
),
6207 i40e_aq_str(&pf
->hw
, pf
->hw
.aq
.asq_last_status
));
6212 * i40e_config_bridge_mode - Configure the HW bridge mode
6213 * @veb: pointer to the bridge instance
6215 * Configure the loop back mode for the LAN VSI that is downlink to the
6216 * specified HW bridge instance. It is expected this function is called
6217 * when a new HW bridge is instantiated.
6219 static void i40e_config_bridge_mode(struct i40e_veb
*veb
)
6221 struct i40e_pf
*pf
= veb
->pf
;
6223 dev_info(&pf
->pdev
->dev
, "enabling bridge mode: %s\n",
6224 veb
->bridge_mode
== BRIDGE_MODE_VEPA
? "VEPA" : "VEB");
6225 if (veb
->bridge_mode
& BRIDGE_MODE_VEPA
)
6226 i40e_disable_pf_switch_lb(pf
);
6228 i40e_enable_pf_switch_lb(pf
);
6232 * i40e_reconstitute_veb - rebuild the VEB and anything connected to it
6233 * @veb: pointer to the VEB instance
6235 * This is a recursive function that first builds the attached VSIs then
6236 * recurses in to build the next layer of VEB. We track the connections
6237 * through our own index numbers because the seid's from the HW could
6238 * change across the reset.
6240 static int i40e_reconstitute_veb(struct i40e_veb
*veb
)
6242 struct i40e_vsi
*ctl_vsi
= NULL
;
6243 struct i40e_pf
*pf
= veb
->pf
;
6247 /* build VSI that owns this VEB, temporarily attached to base VEB */
6248 for (v
= 0; v
< pf
->num_alloc_vsi
&& !ctl_vsi
; v
++) {
6250 pf
->vsi
[v
]->veb_idx
== veb
->idx
&&
6251 pf
->vsi
[v
]->flags
& I40E_VSI_FLAG_VEB_OWNER
) {
6252 ctl_vsi
= pf
->vsi
[v
];
6257 dev_info(&pf
->pdev
->dev
,
6258 "missing owner VSI for veb_idx %d\n", veb
->idx
);
6260 goto end_reconstitute
;
6262 if (ctl_vsi
!= pf
->vsi
[pf
->lan_vsi
])
6263 ctl_vsi
->uplink_seid
= pf
->vsi
[pf
->lan_vsi
]->uplink_seid
;
6264 ret
= i40e_add_vsi(ctl_vsi
);
6266 dev_info(&pf
->pdev
->dev
,
6267 "rebuild of veb_idx %d owner VSI failed: %d\n",
6269 goto end_reconstitute
;
6271 i40e_vsi_reset_stats(ctl_vsi
);
6273 /* create the VEB in the switch and move the VSI onto the VEB */
6274 ret
= i40e_add_veb(veb
, ctl_vsi
);
6276 goto end_reconstitute
;
6278 if (pf
->flags
& I40E_FLAG_VEB_MODE_ENABLED
)
6279 veb
->bridge_mode
= BRIDGE_MODE_VEB
;
6281 veb
->bridge_mode
= BRIDGE_MODE_VEPA
;
6282 i40e_config_bridge_mode(veb
);
6284 /* create the remaining VSIs attached to this VEB */
6285 for (v
= 0; v
< pf
->num_alloc_vsi
; v
++) {
6286 if (!pf
->vsi
[v
] || pf
->vsi
[v
] == ctl_vsi
)
6289 if (pf
->vsi
[v
]->veb_idx
== veb
->idx
) {
6290 struct i40e_vsi
*vsi
= pf
->vsi
[v
];
6292 vsi
->uplink_seid
= veb
->seid
;
6293 ret
= i40e_add_vsi(vsi
);
6295 dev_info(&pf
->pdev
->dev
,
6296 "rebuild of vsi_idx %d failed: %d\n",
6298 goto end_reconstitute
;
6300 i40e_vsi_reset_stats(vsi
);
6304 /* create any VEBs attached to this VEB - RECURSION */
6305 for (veb_idx
= 0; veb_idx
< I40E_MAX_VEB
; veb_idx
++) {
6306 if (pf
->veb
[veb_idx
] && pf
->veb
[veb_idx
]->veb_idx
== veb
->idx
) {
6307 pf
->veb
[veb_idx
]->uplink_seid
= veb
->seid
;
6308 ret
= i40e_reconstitute_veb(pf
->veb
[veb_idx
]);
6319 * i40e_get_capabilities - get info about the HW
6320 * @pf: the PF struct
6322 static int i40e_get_capabilities(struct i40e_pf
*pf
)
6324 struct i40e_aqc_list_capabilities_element_resp
*cap_buf
;
6329 buf_len
= 40 * sizeof(struct i40e_aqc_list_capabilities_element_resp
);
6331 cap_buf
= kzalloc(buf_len
, GFP_KERNEL
);
6335 /* this loads the data into the hw struct for us */
6336 err
= i40e_aq_discover_capabilities(&pf
->hw
, cap_buf
, buf_len
,
6338 i40e_aqc_opc_list_func_capabilities
,
6340 /* data loaded, buffer no longer needed */
6343 if (pf
->hw
.aq
.asq_last_status
== I40E_AQ_RC_ENOMEM
) {
6344 /* retry with a larger buffer */
6345 buf_len
= data_size
;
6346 } else if (pf
->hw
.aq
.asq_last_status
!= I40E_AQ_RC_OK
) {
6347 dev_info(&pf
->pdev
->dev
,
6348 "capability discovery failed, err %s aq_err %s\n",
6349 i40e_stat_str(&pf
->hw
, err
),
6350 i40e_aq_str(&pf
->hw
,
6351 pf
->hw
.aq
.asq_last_status
));
6356 if (pf
->hw
.debug_mask
& I40E_DEBUG_USER
)
6357 dev_info(&pf
->pdev
->dev
,
6358 "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",
6359 pf
->hw
.pf_id
, pf
->hw
.func_caps
.num_vfs
,
6360 pf
->hw
.func_caps
.num_msix_vectors
,
6361 pf
->hw
.func_caps
.num_msix_vectors_vf
,
6362 pf
->hw
.func_caps
.fd_filters_guaranteed
,
6363 pf
->hw
.func_caps
.fd_filters_best_effort
,
6364 pf
->hw
.func_caps
.num_tx_qp
,
6365 pf
->hw
.func_caps
.num_vsis
);
6367 #define DEF_NUM_VSI (1 + (pf->hw.func_caps.fcoe ? 1 : 0) \
6368 + pf->hw.func_caps.num_vfs)
6369 if (pf
->hw
.revision_id
== 0 && (DEF_NUM_VSI
> pf
->hw
.func_caps
.num_vsis
)) {
6370 dev_info(&pf
->pdev
->dev
,
6371 "got num_vsis %d, setting num_vsis to %d\n",
6372 pf
->hw
.func_caps
.num_vsis
, DEF_NUM_VSI
);
6373 pf
->hw
.func_caps
.num_vsis
= DEF_NUM_VSI
;
6379 static int i40e_vsi_clear(struct i40e_vsi
*vsi
);
6382 * i40e_fdir_sb_setup - initialize the Flow Director resources for Sideband
6383 * @pf: board private structure
6385 static void i40e_fdir_sb_setup(struct i40e_pf
*pf
)
6387 struct i40e_vsi
*vsi
;
6390 /* quick workaround for an NVM issue that leaves a critical register
6393 if (!rd32(&pf
->hw
, I40E_GLQF_HKEY(0))) {
6394 static const u32 hkey
[] = {
6395 0xe640d33f, 0xcdfe98ab, 0x73fa7161, 0x0d7a7d36,
6396 0xeacb7d61, 0xaa4f05b6, 0x9c5c89ed, 0xfc425ddb,
6397 0xa4654832, 0xfc7461d4, 0x8f827619, 0xf5c63c21,
6400 for (i
= 0; i
<= I40E_GLQF_HKEY_MAX_INDEX
; i
++)
6401 wr32(&pf
->hw
, I40E_GLQF_HKEY(i
), hkey
[i
]);
6404 if (!(pf
->flags
& I40E_FLAG_FD_SB_ENABLED
))
6407 /* find existing VSI and see if it needs configuring */
6409 for (i
= 0; i
< pf
->num_alloc_vsi
; i
++) {
6410 if (pf
->vsi
[i
] && pf
->vsi
[i
]->type
== I40E_VSI_FDIR
) {
6416 /* create a new VSI if none exists */
6418 vsi
= i40e_vsi_setup(pf
, I40E_VSI_FDIR
,
6419 pf
->vsi
[pf
->lan_vsi
]->seid
, 0);
6421 dev_info(&pf
->pdev
->dev
, "Couldn't create FDir VSI\n");
6422 pf
->flags
&= ~I40E_FLAG_FD_SB_ENABLED
;
6427 i40e_vsi_setup_irqhandler(vsi
, i40e_fdir_clean_ring
);
6431 * i40e_fdir_teardown - release the Flow Director resources
6432 * @pf: board private structure
6434 static void i40e_fdir_teardown(struct i40e_pf
*pf
)
6438 i40e_fdir_filter_exit(pf
);
6439 for (i
= 0; i
< pf
->num_alloc_vsi
; i
++) {
6440 if (pf
->vsi
[i
] && pf
->vsi
[i
]->type
== I40E_VSI_FDIR
) {
6441 i40e_vsi_release(pf
->vsi
[i
]);
6448 * i40e_prep_for_reset - prep for the core to reset
6449 * @pf: board private structure
6451 * Close up the VFs and other things in prep for PF Reset.
6453 static void i40e_prep_for_reset(struct i40e_pf
*pf
)
6455 struct i40e_hw
*hw
= &pf
->hw
;
6456 i40e_status ret
= 0;
6459 clear_bit(__I40E_RESET_INTR_RECEIVED
, &pf
->state
);
6460 if (test_and_set_bit(__I40E_RESET_RECOVERY_PENDING
, &pf
->state
))
6463 dev_dbg(&pf
->pdev
->dev
, "Tearing down internal switch for reset\n");
6465 /* quiesce the VSIs and their queues that are not already DOWN */
6466 i40e_pf_quiesce_all_vsi(pf
);
6468 for (v
= 0; v
< pf
->num_alloc_vsi
; v
++) {
6470 pf
->vsi
[v
]->seid
= 0;
6473 i40e_shutdown_adminq(&pf
->hw
);
6475 /* call shutdown HMC */
6476 if (hw
->hmc
.hmc_obj
) {
6477 ret
= i40e_shutdown_lan_hmc(hw
);
6479 dev_warn(&pf
->pdev
->dev
,
6480 "shutdown_lan_hmc failed: %d\n", ret
);
6485 * i40e_send_version - update firmware with driver version
6488 static void i40e_send_version(struct i40e_pf
*pf
)
6490 struct i40e_driver_version dv
;
6492 dv
.major_version
= DRV_VERSION_MAJOR
;
6493 dv
.minor_version
= DRV_VERSION_MINOR
;
6494 dv
.build_version
= DRV_VERSION_BUILD
;
6495 dv
.subbuild_version
= 0;
6496 strlcpy(dv
.driver_string
, DRV_VERSION
, sizeof(dv
.driver_string
));
6497 i40e_aq_send_driver_version(&pf
->hw
, &dv
, NULL
);
6501 * i40e_reset_and_rebuild - reset and rebuild using a saved config
6502 * @pf: board private structure
6503 * @reinit: if the Main VSI needs to re-initialized.
6505 static void i40e_reset_and_rebuild(struct i40e_pf
*pf
, bool reinit
)
6507 struct i40e_hw
*hw
= &pf
->hw
;
6508 u8 set_fc_aq_fail
= 0;
6512 /* Now we wait for GRST to settle out.
6513 * We don't have to delete the VEBs or VSIs from the hw switch
6514 * because the reset will make them disappear.
6516 ret
= i40e_pf_reset(hw
);
6518 dev_info(&pf
->pdev
->dev
, "PF reset failed, %d\n", ret
);
6519 set_bit(__I40E_RESET_FAILED
, &pf
->state
);
6520 goto clear_recovery
;
6524 if (test_bit(__I40E_DOWN
, &pf
->state
))
6525 goto clear_recovery
;
6526 dev_dbg(&pf
->pdev
->dev
, "Rebuilding internal switch\n");
6528 /* rebuild the basics for the AdminQ, HMC, and initial HW switch */
6529 ret
= i40e_init_adminq(&pf
->hw
);
6531 dev_info(&pf
->pdev
->dev
, "Rebuild AdminQ failed, err %s aq_err %s\n",
6532 i40e_stat_str(&pf
->hw
, ret
),
6533 i40e_aq_str(&pf
->hw
, pf
->hw
.aq
.asq_last_status
));
6534 goto clear_recovery
;
6537 /* re-verify the eeprom if we just had an EMP reset */
6538 if (test_and_clear_bit(__I40E_EMP_RESET_INTR_RECEIVED
, &pf
->state
))
6539 i40e_verify_eeprom(pf
);
6541 i40e_clear_pxe_mode(hw
);
6542 ret
= i40e_get_capabilities(pf
);
6544 goto end_core_reset
;
6546 ret
= i40e_init_lan_hmc(hw
, hw
->func_caps
.num_tx_qp
,
6547 hw
->func_caps
.num_rx_qp
,
6548 pf
->fcoe_hmc_cntx_num
, pf
->fcoe_hmc_filt_num
);
6550 dev_info(&pf
->pdev
->dev
, "init_lan_hmc failed: %d\n", ret
);
6551 goto end_core_reset
;
6553 ret
= i40e_configure_lan_hmc(hw
, I40E_HMC_MODEL_DIRECT_ONLY
);
6555 dev_info(&pf
->pdev
->dev
, "configure_lan_hmc failed: %d\n", ret
);
6556 goto end_core_reset
;
6559 #ifdef CONFIG_I40E_DCB
6560 ret
= i40e_init_pf_dcb(pf
);
6562 dev_info(&pf
->pdev
->dev
, "DCB init failed %d, disabled\n", ret
);
6563 pf
->flags
&= ~I40E_FLAG_DCB_CAPABLE
;
6564 /* Continue without DCB enabled */
6566 #endif /* CONFIG_I40E_DCB */
6568 i40e_init_pf_fcoe(pf
);
6571 /* do basic switch setup */
6572 ret
= i40e_setup_pf_switch(pf
, reinit
);
6574 goto end_core_reset
;
6576 /* driver is only interested in link up/down and module qualification
6577 * reports from firmware
6579 ret
= i40e_aq_set_phy_int_mask(&pf
->hw
,
6580 I40E_AQ_EVENT_LINK_UPDOWN
|
6581 I40E_AQ_EVENT_MODULE_QUAL_FAIL
, NULL
);
6583 dev_info(&pf
->pdev
->dev
, "set phy mask fail, err %s aq_err %s\n",
6584 i40e_stat_str(&pf
->hw
, ret
),
6585 i40e_aq_str(&pf
->hw
, pf
->hw
.aq
.asq_last_status
));
6587 /* make sure our flow control settings are restored */
6588 ret
= i40e_set_fc(&pf
->hw
, &set_fc_aq_fail
, true);
6590 dev_dbg(&pf
->pdev
->dev
, "setting flow control: ret = %s last_status = %s\n",
6591 i40e_stat_str(&pf
->hw
, ret
),
6592 i40e_aq_str(&pf
->hw
, pf
->hw
.aq
.asq_last_status
));
6594 /* Rebuild the VSIs and VEBs that existed before reset.
6595 * They are still in our local switch element arrays, so only
6596 * need to rebuild the switch model in the HW.
6598 * If there were VEBs but the reconstitution failed, we'll try
6599 * try to recover minimal use by getting the basic PF VSI working.
6601 if (pf
->vsi
[pf
->lan_vsi
]->uplink_seid
!= pf
->mac_seid
) {
6602 dev_dbg(&pf
->pdev
->dev
, "attempting to rebuild switch\n");
6603 /* find the one VEB connected to the MAC, and find orphans */
6604 for (v
= 0; v
< I40E_MAX_VEB
; v
++) {
6608 if (pf
->veb
[v
]->uplink_seid
== pf
->mac_seid
||
6609 pf
->veb
[v
]->uplink_seid
== 0) {
6610 ret
= i40e_reconstitute_veb(pf
->veb
[v
]);
6615 /* If Main VEB failed, we're in deep doodoo,
6616 * so give up rebuilding the switch and set up
6617 * for minimal rebuild of PF VSI.
6618 * If orphan failed, we'll report the error
6619 * but try to keep going.
6621 if (pf
->veb
[v
]->uplink_seid
== pf
->mac_seid
) {
6622 dev_info(&pf
->pdev
->dev
,
6623 "rebuild of switch failed: %d, will try to set up simple PF connection\n",
6625 pf
->vsi
[pf
->lan_vsi
]->uplink_seid
6628 } else if (pf
->veb
[v
]->uplink_seid
== 0) {
6629 dev_info(&pf
->pdev
->dev
,
6630 "rebuild of orphan VEB failed: %d\n",
6637 if (pf
->vsi
[pf
->lan_vsi
]->uplink_seid
== pf
->mac_seid
) {
6638 dev_dbg(&pf
->pdev
->dev
, "attempting to rebuild PF VSI\n");
6639 /* no VEB, so rebuild only the Main VSI */
6640 ret
= i40e_add_vsi(pf
->vsi
[pf
->lan_vsi
]);
6642 dev_info(&pf
->pdev
->dev
,
6643 "rebuild of Main VSI failed: %d\n", ret
);
6644 goto end_core_reset
;
6648 if (((pf
->hw
.aq
.fw_maj_ver
== 4) && (pf
->hw
.aq
.fw_min_ver
< 33)) ||
6649 (pf
->hw
.aq
.fw_maj_ver
< 4)) {
6651 ret
= i40e_aq_set_link_restart_an(&pf
->hw
, true, NULL
);
6653 dev_info(&pf
->pdev
->dev
, "link restart failed, err %s aq_err %s\n",
6654 i40e_stat_str(&pf
->hw
, ret
),
6655 i40e_aq_str(&pf
->hw
,
6656 pf
->hw
.aq
.asq_last_status
));
6658 /* reinit the misc interrupt */
6659 if (pf
->flags
& I40E_FLAG_MSIX_ENABLED
)
6660 ret
= i40e_setup_misc_vector(pf
);
6662 /* restart the VSIs that were rebuilt and running before the reset */
6663 i40e_pf_unquiesce_all_vsi(pf
);
6665 if (pf
->num_alloc_vfs
) {
6666 for (v
= 0; v
< pf
->num_alloc_vfs
; v
++)
6667 i40e_reset_vf(&pf
->vf
[v
], true);
6670 /* tell the firmware that we're starting */
6671 i40e_send_version(pf
);
6674 clear_bit(__I40E_RESET_FAILED
, &pf
->state
);
6676 clear_bit(__I40E_RESET_RECOVERY_PENDING
, &pf
->state
);
6680 * i40e_handle_reset_warning - prep for the PF to reset, reset and rebuild
6681 * @pf: board private structure
6683 * Close up the VFs and other things in prep for a Core Reset,
6684 * then get ready to rebuild the world.
6686 static void i40e_handle_reset_warning(struct i40e_pf
*pf
)
6688 i40e_prep_for_reset(pf
);
6689 i40e_reset_and_rebuild(pf
, false);
6693 * i40e_handle_mdd_event
6694 * @pf: pointer to the PF structure
6696 * Called from the MDD irq handler to identify possibly malicious vfs
6698 static void i40e_handle_mdd_event(struct i40e_pf
*pf
)
6700 struct i40e_hw
*hw
= &pf
->hw
;
6701 bool mdd_detected
= false;
6702 bool pf_mdd_detected
= false;
6707 if (!test_bit(__I40E_MDD_EVENT_PENDING
, &pf
->state
))
6710 /* find what triggered the MDD event */
6711 reg
= rd32(hw
, I40E_GL_MDET_TX
);
6712 if (reg
& I40E_GL_MDET_TX_VALID_MASK
) {
6713 u8 pf_num
= (reg
& I40E_GL_MDET_TX_PF_NUM_MASK
) >>
6714 I40E_GL_MDET_TX_PF_NUM_SHIFT
;
6715 u16 vf_num
= (reg
& I40E_GL_MDET_TX_VF_NUM_MASK
) >>
6716 I40E_GL_MDET_TX_VF_NUM_SHIFT
;
6717 u8 event
= (reg
& I40E_GL_MDET_TX_EVENT_MASK
) >>
6718 I40E_GL_MDET_TX_EVENT_SHIFT
;
6719 u16 queue
= ((reg
& I40E_GL_MDET_TX_QUEUE_MASK
) >>
6720 I40E_GL_MDET_TX_QUEUE_SHIFT
) -
6721 pf
->hw
.func_caps
.base_queue
;
6722 if (netif_msg_tx_err(pf
))
6723 dev_info(&pf
->pdev
->dev
, "Malicious Driver Detection event 0x%02x on TX queue %d PF number 0x%02x VF number 0x%02x\n",
6724 event
, queue
, pf_num
, vf_num
);
6725 wr32(hw
, I40E_GL_MDET_TX
, 0xffffffff);
6726 mdd_detected
= true;
6728 reg
= rd32(hw
, I40E_GL_MDET_RX
);
6729 if (reg
& I40E_GL_MDET_RX_VALID_MASK
) {
6730 u8 func
= (reg
& I40E_GL_MDET_RX_FUNCTION_MASK
) >>
6731 I40E_GL_MDET_RX_FUNCTION_SHIFT
;
6732 u8 event
= (reg
& I40E_GL_MDET_RX_EVENT_MASK
) >>
6733 I40E_GL_MDET_RX_EVENT_SHIFT
;
6734 u16 queue
= ((reg
& I40E_GL_MDET_RX_QUEUE_MASK
) >>
6735 I40E_GL_MDET_RX_QUEUE_SHIFT
) -
6736 pf
->hw
.func_caps
.base_queue
;
6737 if (netif_msg_rx_err(pf
))
6738 dev_info(&pf
->pdev
->dev
, "Malicious Driver Detection event 0x%02x on RX queue %d of function 0x%02x\n",
6739 event
, queue
, func
);
6740 wr32(hw
, I40E_GL_MDET_RX
, 0xffffffff);
6741 mdd_detected
= true;
6745 reg
= rd32(hw
, I40E_PF_MDET_TX
);
6746 if (reg
& I40E_PF_MDET_TX_VALID_MASK
) {
6747 wr32(hw
, I40E_PF_MDET_TX
, 0xFFFF);
6748 dev_info(&pf
->pdev
->dev
, "TX driver issue detected, PF reset issued\n");
6749 pf_mdd_detected
= true;
6751 reg
= rd32(hw
, I40E_PF_MDET_RX
);
6752 if (reg
& I40E_PF_MDET_RX_VALID_MASK
) {
6753 wr32(hw
, I40E_PF_MDET_RX
, 0xFFFF);
6754 dev_info(&pf
->pdev
->dev
, "RX driver issue detected, PF reset issued\n");
6755 pf_mdd_detected
= true;
6757 /* Queue belongs to the PF, initiate a reset */
6758 if (pf_mdd_detected
) {
6759 set_bit(__I40E_PF_RESET_REQUESTED
, &pf
->state
);
6760 i40e_service_event_schedule(pf
);
6764 /* see if one of the VFs needs its hand slapped */
6765 for (i
= 0; i
< pf
->num_alloc_vfs
&& mdd_detected
; i
++) {
6767 reg
= rd32(hw
, I40E_VP_MDET_TX(i
));
6768 if (reg
& I40E_VP_MDET_TX_VALID_MASK
) {
6769 wr32(hw
, I40E_VP_MDET_TX(i
), 0xFFFF);
6770 vf
->num_mdd_events
++;
6771 dev_info(&pf
->pdev
->dev
, "TX driver issue detected on VF %d\n",
6775 reg
= rd32(hw
, I40E_VP_MDET_RX(i
));
6776 if (reg
& I40E_VP_MDET_RX_VALID_MASK
) {
6777 wr32(hw
, I40E_VP_MDET_RX(i
), 0xFFFF);
6778 vf
->num_mdd_events
++;
6779 dev_info(&pf
->pdev
->dev
, "RX driver issue detected on VF %d\n",
6783 if (vf
->num_mdd_events
> I40E_DEFAULT_NUM_MDD_EVENTS_ALLOWED
) {
6784 dev_info(&pf
->pdev
->dev
,
6785 "Too many MDD events on VF %d, disabled\n", i
);
6786 dev_info(&pf
->pdev
->dev
,
6787 "Use PF Control I/F to re-enable the VF\n");
6788 set_bit(I40E_VF_STAT_DISABLED
, &vf
->vf_states
);
6792 /* re-enable mdd interrupt cause */
6793 clear_bit(__I40E_MDD_EVENT_PENDING
, &pf
->state
);
6794 reg
= rd32(hw
, I40E_PFINT_ICR0_ENA
);
6795 reg
|= I40E_PFINT_ICR0_ENA_MAL_DETECT_MASK
;
6796 wr32(hw
, I40E_PFINT_ICR0_ENA
, reg
);
6800 #ifdef CONFIG_I40E_VXLAN
6802 * i40e_sync_vxlan_filters_subtask - Sync the VSI filter list with HW
6803 * @pf: board private structure
6805 static void i40e_sync_vxlan_filters_subtask(struct i40e_pf
*pf
)
6807 struct i40e_hw
*hw
= &pf
->hw
;
6812 if (!(pf
->flags
& I40E_FLAG_VXLAN_FILTER_SYNC
))
6815 pf
->flags
&= ~I40E_FLAG_VXLAN_FILTER_SYNC
;
6817 for (i
= 0; i
< I40E_MAX_PF_UDP_OFFLOAD_PORTS
; i
++) {
6818 if (pf
->pending_vxlan_bitmap
& BIT_ULL(i
)) {
6819 pf
->pending_vxlan_bitmap
&= ~BIT_ULL(i
);
6820 port
= pf
->vxlan_ports
[i
];
6822 ret
= i40e_aq_add_udp_tunnel(hw
, ntohs(port
),
6823 I40E_AQC_TUNNEL_TYPE_VXLAN
,
6826 ret
= i40e_aq_del_udp_tunnel(hw
, i
, NULL
);
6829 dev_info(&pf
->pdev
->dev
,
6830 "%s vxlan port %d, index %d failed, err %s aq_err %s\n",
6831 port
? "add" : "delete",
6833 i40e_stat_str(&pf
->hw
, ret
),
6834 i40e_aq_str(&pf
->hw
,
6835 pf
->hw
.aq
.asq_last_status
));
6836 pf
->vxlan_ports
[i
] = 0;
6844 * i40e_service_task - Run the driver's async subtasks
6845 * @work: pointer to work_struct containing our data
6847 static void i40e_service_task(struct work_struct
*work
)
6849 struct i40e_pf
*pf
= container_of(work
,
6852 unsigned long start_time
= jiffies
;
6854 /* don't bother with service tasks if a reset is in progress */
6855 if (test_bit(__I40E_RESET_RECOVERY_PENDING
, &pf
->state
)) {
6856 i40e_service_event_complete(pf
);
6860 i40e_detect_recover_hung(pf
);
6861 i40e_reset_subtask(pf
);
6862 i40e_handle_mdd_event(pf
);
6863 i40e_vc_process_vflr_event(pf
);
6864 i40e_watchdog_subtask(pf
);
6865 i40e_fdir_reinit_subtask(pf
);
6866 i40e_sync_filters_subtask(pf
);
6867 #ifdef CONFIG_I40E_VXLAN
6868 i40e_sync_vxlan_filters_subtask(pf
);
6870 i40e_clean_adminq_subtask(pf
);
6872 i40e_service_event_complete(pf
);
6874 /* If the tasks have taken longer than one timer cycle or there
6875 * is more work to be done, reschedule the service task now
6876 * rather than wait for the timer to tick again.
6878 if (time_after(jiffies
, (start_time
+ pf
->service_timer_period
)) ||
6879 test_bit(__I40E_ADMINQ_EVENT_PENDING
, &pf
->state
) ||
6880 test_bit(__I40E_MDD_EVENT_PENDING
, &pf
->state
) ||
6881 test_bit(__I40E_VFLR_EVENT_PENDING
, &pf
->state
))
6882 i40e_service_event_schedule(pf
);
6886 * i40e_service_timer - timer callback
6887 * @data: pointer to PF struct
6889 static void i40e_service_timer(unsigned long data
)
6891 struct i40e_pf
*pf
= (struct i40e_pf
*)data
;
6893 mod_timer(&pf
->service_timer
,
6894 round_jiffies(jiffies
+ pf
->service_timer_period
));
6895 i40e_service_event_schedule(pf
);
6899 * i40e_set_num_rings_in_vsi - Determine number of rings in the VSI
6900 * @vsi: the VSI being configured
6902 static int i40e_set_num_rings_in_vsi(struct i40e_vsi
*vsi
)
6904 struct i40e_pf
*pf
= vsi
->back
;
6906 switch (vsi
->type
) {
6908 vsi
->alloc_queue_pairs
= pf
->num_lan_qps
;
6909 vsi
->num_desc
= ALIGN(I40E_DEFAULT_NUM_DESCRIPTORS
,
6910 I40E_REQ_DESCRIPTOR_MULTIPLE
);
6911 if (pf
->flags
& I40E_FLAG_MSIX_ENABLED
)
6912 vsi
->num_q_vectors
= pf
->num_lan_msix
;
6914 vsi
->num_q_vectors
= 1;
6919 vsi
->alloc_queue_pairs
= 1;
6920 vsi
->num_desc
= ALIGN(I40E_FDIR_RING_COUNT
,
6921 I40E_REQ_DESCRIPTOR_MULTIPLE
);
6922 vsi
->num_q_vectors
= 1;
6925 case I40E_VSI_VMDQ2
:
6926 vsi
->alloc_queue_pairs
= pf
->num_vmdq_qps
;
6927 vsi
->num_desc
= ALIGN(I40E_DEFAULT_NUM_DESCRIPTORS
,
6928 I40E_REQ_DESCRIPTOR_MULTIPLE
);
6929 vsi
->num_q_vectors
= pf
->num_vmdq_msix
;
6932 case I40E_VSI_SRIOV
:
6933 vsi
->alloc_queue_pairs
= pf
->num_vf_qps
;
6934 vsi
->num_desc
= ALIGN(I40E_DEFAULT_NUM_DESCRIPTORS
,
6935 I40E_REQ_DESCRIPTOR_MULTIPLE
);
6940 vsi
->alloc_queue_pairs
= pf
->num_fcoe_qps
;
6941 vsi
->num_desc
= ALIGN(I40E_DEFAULT_NUM_DESCRIPTORS
,
6942 I40E_REQ_DESCRIPTOR_MULTIPLE
);
6943 vsi
->num_q_vectors
= pf
->num_fcoe_msix
;
6946 #endif /* I40E_FCOE */
6956 * i40e_vsi_alloc_arrays - Allocate queue and vector pointer arrays for the vsi
6957 * @type: VSI pointer
6958 * @alloc_qvectors: a bool to specify if q_vectors need to be allocated.
6960 * On error: returns error code (negative)
6961 * On success: returns 0
6963 static int i40e_vsi_alloc_arrays(struct i40e_vsi
*vsi
, bool alloc_qvectors
)
6968 /* allocate memory for both Tx and Rx ring pointers */
6969 size
= sizeof(struct i40e_ring
*) * vsi
->alloc_queue_pairs
* 2;
6970 vsi
->tx_rings
= kzalloc(size
, GFP_KERNEL
);
6973 vsi
->rx_rings
= &vsi
->tx_rings
[vsi
->alloc_queue_pairs
];
6975 if (alloc_qvectors
) {
6976 /* allocate memory for q_vector pointers */
6977 size
= sizeof(struct i40e_q_vector
*) * vsi
->num_q_vectors
;
6978 vsi
->q_vectors
= kzalloc(size
, GFP_KERNEL
);
6979 if (!vsi
->q_vectors
) {
6987 kfree(vsi
->tx_rings
);
6992 * i40e_vsi_mem_alloc - Allocates the next available struct vsi in the PF
6993 * @pf: board private structure
6994 * @type: type of VSI
6996 * On error: returns error code (negative)
6997 * On success: returns vsi index in PF (positive)
6999 static int i40e_vsi_mem_alloc(struct i40e_pf
*pf
, enum i40e_vsi_type type
)
7002 struct i40e_vsi
*vsi
;
7006 /* Need to protect the allocation of the VSIs at the PF level */
7007 mutex_lock(&pf
->switch_mutex
);
7009 /* VSI list may be fragmented if VSI creation/destruction has
7010 * been happening. We can afford to do a quick scan to look
7011 * for any free VSIs in the list.
7013 * find next empty vsi slot, looping back around if necessary
7016 while (i
< pf
->num_alloc_vsi
&& pf
->vsi
[i
])
7018 if (i
>= pf
->num_alloc_vsi
) {
7020 while (i
< pf
->next_vsi
&& pf
->vsi
[i
])
7024 if (i
< pf
->num_alloc_vsi
&& !pf
->vsi
[i
]) {
7025 vsi_idx
= i
; /* Found one! */
7028 goto unlock_pf
; /* out of VSI slots! */
7032 vsi
= kzalloc(sizeof(*vsi
), GFP_KERNEL
);
7039 set_bit(__I40E_DOWN
, &vsi
->state
);
7042 vsi
->rx_itr_setting
= pf
->rx_itr_default
;
7043 vsi
->tx_itr_setting
= pf
->tx_itr_default
;
7044 vsi
->rss_table_size
= (vsi
->type
== I40E_VSI_MAIN
) ?
7045 pf
->rss_table_size
: 64;
7046 vsi
->netdev_registered
= false;
7047 vsi
->work_limit
= I40E_DEFAULT_IRQ_WORK
;
7048 INIT_LIST_HEAD(&vsi
->mac_filter_list
);
7049 vsi
->irqs_ready
= false;
7051 ret
= i40e_set_num_rings_in_vsi(vsi
);
7055 ret
= i40e_vsi_alloc_arrays(vsi
, true);
7059 /* Setup default MSIX irq handler for VSI */
7060 i40e_vsi_setup_irqhandler(vsi
, i40e_msix_clean_rings
);
7062 pf
->vsi
[vsi_idx
] = vsi
;
7067 pf
->next_vsi
= i
- 1;
7070 mutex_unlock(&pf
->switch_mutex
);
7075 * i40e_vsi_free_arrays - Free queue and vector pointer arrays for the VSI
7076 * @type: VSI pointer
7077 * @free_qvectors: a bool to specify if q_vectors need to be freed.
7079 * On error: returns error code (negative)
7080 * On success: returns 0
7082 static void i40e_vsi_free_arrays(struct i40e_vsi
*vsi
, bool free_qvectors
)
7084 /* free the ring and vector containers */
7085 if (free_qvectors
) {
7086 kfree(vsi
->q_vectors
);
7087 vsi
->q_vectors
= NULL
;
7089 kfree(vsi
->tx_rings
);
7090 vsi
->tx_rings
= NULL
;
7091 vsi
->rx_rings
= NULL
;
7095 * i40e_vsi_clear - Deallocate the VSI provided
7096 * @vsi: the VSI being un-configured
7098 static int i40e_vsi_clear(struct i40e_vsi
*vsi
)
7109 mutex_lock(&pf
->switch_mutex
);
7110 if (!pf
->vsi
[vsi
->idx
]) {
7111 dev_err(&pf
->pdev
->dev
, "pf->vsi[%d] is NULL, just free vsi[%d](%p,type %d)\n",
7112 vsi
->idx
, vsi
->idx
, vsi
, vsi
->type
);
7116 if (pf
->vsi
[vsi
->idx
] != vsi
) {
7117 dev_err(&pf
->pdev
->dev
,
7118 "pf->vsi[%d](%p, type %d) != vsi[%d](%p,type %d): no free!\n",
7119 pf
->vsi
[vsi
->idx
]->idx
,
7121 pf
->vsi
[vsi
->idx
]->type
,
7122 vsi
->idx
, vsi
, vsi
->type
);
7126 /* updates the PF for this cleared vsi */
7127 i40e_put_lump(pf
->qp_pile
, vsi
->base_queue
, vsi
->idx
);
7128 i40e_put_lump(pf
->irq_pile
, vsi
->base_vector
, vsi
->idx
);
7130 i40e_vsi_free_arrays(vsi
, true);
7132 pf
->vsi
[vsi
->idx
] = NULL
;
7133 if (vsi
->idx
< pf
->next_vsi
)
7134 pf
->next_vsi
= vsi
->idx
;
7137 mutex_unlock(&pf
->switch_mutex
);
7145 * i40e_vsi_clear_rings - Deallocates the Rx and Tx rings for the provided VSI
7146 * @vsi: the VSI being cleaned
7148 static void i40e_vsi_clear_rings(struct i40e_vsi
*vsi
)
7152 if (vsi
->tx_rings
&& vsi
->tx_rings
[0]) {
7153 for (i
= 0; i
< vsi
->alloc_queue_pairs
; i
++) {
7154 kfree_rcu(vsi
->tx_rings
[i
], rcu
);
7155 vsi
->tx_rings
[i
] = NULL
;
7156 vsi
->rx_rings
[i
] = NULL
;
7162 * i40e_alloc_rings - Allocates the Rx and Tx rings for the provided VSI
7163 * @vsi: the VSI being configured
7165 static int i40e_alloc_rings(struct i40e_vsi
*vsi
)
7167 struct i40e_ring
*tx_ring
, *rx_ring
;
7168 struct i40e_pf
*pf
= vsi
->back
;
7171 /* Set basic values in the rings to be used later during open() */
7172 for (i
= 0; i
< vsi
->alloc_queue_pairs
; i
++) {
7173 /* allocate space for both Tx and Rx in one shot */
7174 tx_ring
= kzalloc(sizeof(struct i40e_ring
) * 2, GFP_KERNEL
);
7178 tx_ring
->queue_index
= i
;
7179 tx_ring
->reg_idx
= vsi
->base_queue
+ i
;
7180 tx_ring
->ring_active
= false;
7182 tx_ring
->netdev
= vsi
->netdev
;
7183 tx_ring
->dev
= &pf
->pdev
->dev
;
7184 tx_ring
->count
= vsi
->num_desc
;
7186 tx_ring
->dcb_tc
= 0;
7187 if (vsi
->back
->flags
& I40E_FLAG_WB_ON_ITR_CAPABLE
)
7188 tx_ring
->flags
= I40E_TXR_FLAGS_WB_ON_ITR
;
7189 if (vsi
->back
->flags
& I40E_FLAG_OUTER_UDP_CSUM_CAPABLE
)
7190 tx_ring
->flags
|= I40E_TXR_FLAGS_OUTER_UDP_CSUM
;
7191 vsi
->tx_rings
[i
] = tx_ring
;
7193 rx_ring
= &tx_ring
[1];
7194 rx_ring
->queue_index
= i
;
7195 rx_ring
->reg_idx
= vsi
->base_queue
+ i
;
7196 rx_ring
->ring_active
= false;
7198 rx_ring
->netdev
= vsi
->netdev
;
7199 rx_ring
->dev
= &pf
->pdev
->dev
;
7200 rx_ring
->count
= vsi
->num_desc
;
7202 rx_ring
->dcb_tc
= 0;
7203 if (pf
->flags
& I40E_FLAG_16BYTE_RX_DESC_ENABLED
)
7204 set_ring_16byte_desc_enabled(rx_ring
);
7206 clear_ring_16byte_desc_enabled(rx_ring
);
7207 vsi
->rx_rings
[i
] = rx_ring
;
7213 i40e_vsi_clear_rings(vsi
);
7218 * i40e_reserve_msix_vectors - Reserve MSI-X vectors in the kernel
7219 * @pf: board private structure
7220 * @vectors: the number of MSI-X vectors to request
7222 * Returns the number of vectors reserved, or error
7224 static int i40e_reserve_msix_vectors(struct i40e_pf
*pf
, int vectors
)
7226 vectors
= pci_enable_msix_range(pf
->pdev
, pf
->msix_entries
,
7227 I40E_MIN_MSIX
, vectors
);
7229 dev_info(&pf
->pdev
->dev
,
7230 "MSI-X vector reservation failed: %d\n", vectors
);
7238 * i40e_init_msix - Setup the MSIX capability
7239 * @pf: board private structure
7241 * Work with the OS to set up the MSIX vectors needed.
7243 * Returns the number of vectors reserved or negative on failure
7245 static int i40e_init_msix(struct i40e_pf
*pf
)
7247 struct i40e_hw
*hw
= &pf
->hw
;
7252 if (!(pf
->flags
& I40E_FLAG_MSIX_ENABLED
))
7255 /* The number of vectors we'll request will be comprised of:
7256 * - Add 1 for "other" cause for Admin Queue events, etc.
7257 * - The number of LAN queue pairs
7258 * - Queues being used for RSS.
7259 * We don't need as many as max_rss_size vectors.
7260 * use rss_size instead in the calculation since that
7261 * is governed by number of cpus in the system.
7262 * - assumes symmetric Tx/Rx pairing
7263 * - The number of VMDq pairs
7265 * - The number of FCOE qps.
7267 * Once we count this up, try the request.
7269 * If we can't get what we want, we'll simplify to nearly nothing
7270 * and try again. If that still fails, we punt.
7272 vectors_left
= hw
->func_caps
.num_msix_vectors
;
7275 /* reserve one vector for miscellaneous handler */
7281 /* reserve vectors for the main PF traffic queues */
7282 pf
->num_lan_msix
= min_t(int, num_online_cpus(), vectors_left
);
7283 vectors_left
-= pf
->num_lan_msix
;
7284 v_budget
+= pf
->num_lan_msix
;
7286 /* reserve one vector for sideband flow director */
7287 if (pf
->flags
& I40E_FLAG_FD_SB_ENABLED
) {
7292 pf
->flags
&= ~I40E_FLAG_FD_SB_ENABLED
;
7297 /* can we reserve enough for FCoE? */
7298 if (pf
->flags
& I40E_FLAG_FCOE_ENABLED
) {
7300 pf
->num_fcoe_msix
= 0;
7301 else if (vectors_left
>= pf
->num_fcoe_qps
)
7302 pf
->num_fcoe_msix
= pf
->num_fcoe_qps
;
7304 pf
->num_fcoe_msix
= 1;
7305 v_budget
+= pf
->num_fcoe_msix
;
7306 vectors_left
-= pf
->num_fcoe_msix
;
7310 /* any vectors left over go for VMDq support */
7311 if (pf
->flags
& I40E_FLAG_VMDQ_ENABLED
) {
7312 int vmdq_vecs_wanted
= pf
->num_vmdq_vsis
* pf
->num_vmdq_qps
;
7313 int vmdq_vecs
= min_t(int, vectors_left
, vmdq_vecs_wanted
);
7315 /* if we're short on vectors for what's desired, we limit
7316 * the queues per vmdq. If this is still more than are
7317 * available, the user will need to change the number of
7318 * queues/vectors used by the PF later with the ethtool
7321 if (vmdq_vecs
< vmdq_vecs_wanted
)
7322 pf
->num_vmdq_qps
= 1;
7323 pf
->num_vmdq_msix
= pf
->num_vmdq_qps
;
7325 v_budget
+= vmdq_vecs
;
7326 vectors_left
-= vmdq_vecs
;
7329 pf
->msix_entries
= kcalloc(v_budget
, sizeof(struct msix_entry
),
7331 if (!pf
->msix_entries
)
7334 for (i
= 0; i
< v_budget
; i
++)
7335 pf
->msix_entries
[i
].entry
= i
;
7336 v_actual
= i40e_reserve_msix_vectors(pf
, v_budget
);
7338 if (v_actual
!= v_budget
) {
7339 /* If we have limited resources, we will start with no vectors
7340 * for the special features and then allocate vectors to some
7341 * of these features based on the policy and at the end disable
7342 * the features that did not get any vectors.
7345 pf
->num_fcoe_qps
= 0;
7346 pf
->num_fcoe_msix
= 0;
7348 pf
->num_vmdq_msix
= 0;
7351 if (v_actual
< I40E_MIN_MSIX
) {
7352 pf
->flags
&= ~I40E_FLAG_MSIX_ENABLED
;
7353 kfree(pf
->msix_entries
);
7354 pf
->msix_entries
= NULL
;
7357 } else if (v_actual
== I40E_MIN_MSIX
) {
7358 /* Adjust for minimal MSIX use */
7359 pf
->num_vmdq_vsis
= 0;
7360 pf
->num_vmdq_qps
= 0;
7361 pf
->num_lan_qps
= 1;
7362 pf
->num_lan_msix
= 1;
7364 } else if (v_actual
!= v_budget
) {
7367 /* reserve the misc vector */
7370 /* Scale vector usage down */
7371 pf
->num_vmdq_msix
= 1; /* force VMDqs to only one vector */
7372 pf
->num_vmdq_vsis
= 1;
7373 pf
->num_vmdq_qps
= 1;
7374 pf
->flags
&= ~I40E_FLAG_FD_SB_ENABLED
;
7376 /* partition out the remaining vectors */
7379 pf
->num_lan_msix
= 1;
7383 /* give one vector to FCoE */
7384 if (pf
->flags
& I40E_FLAG_FCOE_ENABLED
) {
7385 pf
->num_lan_msix
= 1;
7386 pf
->num_fcoe_msix
= 1;
7389 pf
->num_lan_msix
= 2;
7394 /* give one vector to FCoE */
7395 if (pf
->flags
& I40E_FLAG_FCOE_ENABLED
) {
7396 pf
->num_fcoe_msix
= 1;
7400 /* give the rest to the PF */
7401 pf
->num_lan_msix
= min_t(int, vec
, pf
->num_lan_qps
);
7406 if ((pf
->flags
& I40E_FLAG_VMDQ_ENABLED
) &&
7407 (pf
->num_vmdq_msix
== 0)) {
7408 dev_info(&pf
->pdev
->dev
, "VMDq disabled, not enough MSI-X vectors\n");
7409 pf
->flags
&= ~I40E_FLAG_VMDQ_ENABLED
;
7413 if ((pf
->flags
& I40E_FLAG_FCOE_ENABLED
) && (pf
->num_fcoe_msix
== 0)) {
7414 dev_info(&pf
->pdev
->dev
, "FCOE disabled, not enough MSI-X vectors\n");
7415 pf
->flags
&= ~I40E_FLAG_FCOE_ENABLED
;
7422 * i40e_vsi_alloc_q_vector - Allocate memory for a single interrupt vector
7423 * @vsi: the VSI being configured
7424 * @v_idx: index of the vector in the vsi struct
7426 * We allocate one q_vector. If allocation fails we return -ENOMEM.
7428 static int i40e_vsi_alloc_q_vector(struct i40e_vsi
*vsi
, int v_idx
)
7430 struct i40e_q_vector
*q_vector
;
7432 /* allocate q_vector */
7433 q_vector
= kzalloc(sizeof(struct i40e_q_vector
), GFP_KERNEL
);
7437 q_vector
->vsi
= vsi
;
7438 q_vector
->v_idx
= v_idx
;
7439 cpumask_set_cpu(v_idx
, &q_vector
->affinity_mask
);
7441 netif_napi_add(vsi
->netdev
, &q_vector
->napi
,
7442 i40e_napi_poll
, NAPI_POLL_WEIGHT
);
7444 q_vector
->rx
.latency_range
= I40E_LOW_LATENCY
;
7445 q_vector
->tx
.latency_range
= I40E_LOW_LATENCY
;
7447 /* tie q_vector and vsi together */
7448 vsi
->q_vectors
[v_idx
] = q_vector
;
7454 * i40e_vsi_alloc_q_vectors - Allocate memory for interrupt vectors
7455 * @vsi: the VSI being configured
7457 * We allocate one q_vector per queue interrupt. If allocation fails we
7460 static int i40e_vsi_alloc_q_vectors(struct i40e_vsi
*vsi
)
7462 struct i40e_pf
*pf
= vsi
->back
;
7463 int v_idx
, num_q_vectors
;
7466 /* if not MSIX, give the one vector only to the LAN VSI */
7467 if (pf
->flags
& I40E_FLAG_MSIX_ENABLED
)
7468 num_q_vectors
= vsi
->num_q_vectors
;
7469 else if (vsi
== pf
->vsi
[pf
->lan_vsi
])
7474 for (v_idx
= 0; v_idx
< num_q_vectors
; v_idx
++) {
7475 err
= i40e_vsi_alloc_q_vector(vsi
, v_idx
);
7484 i40e_free_q_vector(vsi
, v_idx
);
7490 * i40e_init_interrupt_scheme - Determine proper interrupt scheme
7491 * @pf: board private structure to initialize
7493 static int i40e_init_interrupt_scheme(struct i40e_pf
*pf
)
7498 if (pf
->flags
& I40E_FLAG_MSIX_ENABLED
) {
7499 vectors
= i40e_init_msix(pf
);
7501 pf
->flags
&= ~(I40E_FLAG_MSIX_ENABLED
|
7503 I40E_FLAG_FCOE_ENABLED
|
7505 I40E_FLAG_RSS_ENABLED
|
7506 I40E_FLAG_DCB_CAPABLE
|
7507 I40E_FLAG_SRIOV_ENABLED
|
7508 I40E_FLAG_FD_SB_ENABLED
|
7509 I40E_FLAG_FD_ATR_ENABLED
|
7510 I40E_FLAG_VMDQ_ENABLED
);
7512 /* rework the queue expectations without MSIX */
7513 i40e_determine_queue_usage(pf
);
7517 if (!(pf
->flags
& I40E_FLAG_MSIX_ENABLED
) &&
7518 (pf
->flags
& I40E_FLAG_MSI_ENABLED
)) {
7519 dev_info(&pf
->pdev
->dev
, "MSI-X not available, trying MSI\n");
7520 vectors
= pci_enable_msi(pf
->pdev
);
7522 dev_info(&pf
->pdev
->dev
, "MSI init failed - %d\n",
7524 pf
->flags
&= ~I40E_FLAG_MSI_ENABLED
;
7526 vectors
= 1; /* one MSI or Legacy vector */
7529 if (!(pf
->flags
& (I40E_FLAG_MSIX_ENABLED
| I40E_FLAG_MSI_ENABLED
)))
7530 dev_info(&pf
->pdev
->dev
, "MSI-X and MSI not available, falling back to Legacy IRQ\n");
7532 /* set up vector assignment tracking */
7533 size
= sizeof(struct i40e_lump_tracking
) + (sizeof(u16
) * vectors
);
7534 pf
->irq_pile
= kzalloc(size
, GFP_KERNEL
);
7535 if (!pf
->irq_pile
) {
7536 dev_err(&pf
->pdev
->dev
, "error allocating irq_pile memory\n");
7539 pf
->irq_pile
->num_entries
= vectors
;
7540 pf
->irq_pile
->search_hint
= 0;
7542 /* track first vector for misc interrupts, ignore return */
7543 (void)i40e_get_lump(pf
, pf
->irq_pile
, 1, I40E_PILE_VALID_BIT
- 1);
7549 * i40e_setup_misc_vector - Setup the misc vector to handle non queue events
7550 * @pf: board private structure
7552 * This sets up the handler for MSIX 0, which is used to manage the
7553 * non-queue interrupts, e.g. AdminQ and errors. This is not used
7554 * when in MSI or Legacy interrupt mode.
7556 static int i40e_setup_misc_vector(struct i40e_pf
*pf
)
7558 struct i40e_hw
*hw
= &pf
->hw
;
7561 /* Only request the irq if this is the first time through, and
7562 * not when we're rebuilding after a Reset
7564 if (!test_bit(__I40E_RESET_RECOVERY_PENDING
, &pf
->state
)) {
7565 err
= request_irq(pf
->msix_entries
[0].vector
,
7566 i40e_intr
, 0, pf
->int_name
, pf
);
7568 dev_info(&pf
->pdev
->dev
,
7569 "request_irq for %s failed: %d\n",
7575 i40e_enable_misc_int_causes(pf
);
7577 /* associate no queues to the misc vector */
7578 wr32(hw
, I40E_PFINT_LNKLST0
, I40E_QUEUE_END_OF_LIST
);
7579 wr32(hw
, I40E_PFINT_ITR0(I40E_RX_ITR
), I40E_ITR_8K
);
7583 i40e_irq_dynamic_enable_icr0(pf
);
7589 * i40e_config_rss_aq - Prepare for RSS using AQ commands
7590 * @vsi: vsi structure
7591 * @seed: RSS hash seed
7593 static int i40e_config_rss_aq(struct i40e_vsi
*vsi
, const u8
*seed
)
7595 struct i40e_aqc_get_set_rss_key_data rss_key
;
7596 struct i40e_pf
*pf
= vsi
->back
;
7597 struct i40e_hw
*hw
= &pf
->hw
;
7598 bool pf_lut
= false;
7602 memset(&rss_key
, 0, sizeof(rss_key
));
7603 memcpy(&rss_key
, seed
, sizeof(rss_key
));
7605 rss_lut
= kzalloc(pf
->rss_table_size
, GFP_KERNEL
);
7609 /* Populate the LUT with max no. of queues in round robin fashion */
7610 for (i
= 0; i
< vsi
->rss_table_size
; i
++)
7611 rss_lut
[i
] = i
% vsi
->rss_size
;
7613 ret
= i40e_aq_set_rss_key(hw
, vsi
->id
, &rss_key
);
7615 dev_info(&pf
->pdev
->dev
,
7616 "Cannot set RSS key, err %s aq_err %s\n",
7617 i40e_stat_str(&pf
->hw
, ret
),
7618 i40e_aq_str(&pf
->hw
, pf
->hw
.aq
.asq_last_status
));
7619 goto config_rss_aq_out
;
7622 if (vsi
->type
== I40E_VSI_MAIN
)
7625 ret
= i40e_aq_set_rss_lut(hw
, vsi
->id
, pf_lut
, rss_lut
,
7626 vsi
->rss_table_size
);
7628 dev_info(&pf
->pdev
->dev
,
7629 "Cannot set RSS lut, err %s aq_err %s\n",
7630 i40e_stat_str(&pf
->hw
, ret
),
7631 i40e_aq_str(&pf
->hw
, pf
->hw
.aq
.asq_last_status
));
7639 * i40e_vsi_config_rss - Prepare for VSI(VMDq) RSS if used
7640 * @vsi: VSI structure
7642 static int i40e_vsi_config_rss(struct i40e_vsi
*vsi
)
7644 u8 seed
[I40E_HKEY_ARRAY_SIZE
];
7645 struct i40e_pf
*pf
= vsi
->back
;
7647 netdev_rss_key_fill((void *)seed
, I40E_HKEY_ARRAY_SIZE
);
7648 vsi
->rss_size
= min_t(int, pf
->rss_size
, vsi
->num_queue_pairs
);
7650 if (pf
->flags
& I40E_FLAG_RSS_AQ_CAPABLE
)
7651 return i40e_config_rss_aq(vsi
, seed
);
7657 * i40e_config_rss_reg - Prepare for RSS if used
7658 * @pf: board private structure
7659 * @seed: RSS hash seed
7661 static int i40e_config_rss_reg(struct i40e_pf
*pf
, const u8
*seed
)
7663 struct i40e_vsi
*vsi
= pf
->vsi
[pf
->lan_vsi
];
7664 struct i40e_hw
*hw
= &pf
->hw
;
7665 u32
*seed_dw
= (u32
*)seed
;
7666 u32 current_queue
= 0;
7670 /* Fill out hash function seed */
7671 for (i
= 0; i
<= I40E_PFQF_HKEY_MAX_INDEX
; i
++)
7672 wr32(hw
, I40E_PFQF_HKEY(i
), seed_dw
[i
]);
7674 for (i
= 0; i
<= I40E_PFQF_HLUT_MAX_INDEX
; i
++) {
7676 for (j
= 0; j
< 4; j
++) {
7677 if (current_queue
== vsi
->rss_size
)
7679 lut
|= ((current_queue
) << (8 * j
));
7682 wr32(&pf
->hw
, I40E_PFQF_HLUT(i
), lut
);
7690 * i40e_config_rss - Prepare for RSS if used
7691 * @pf: board private structure
7693 static int i40e_config_rss(struct i40e_pf
*pf
)
7695 struct i40e_vsi
*vsi
= pf
->vsi
[pf
->lan_vsi
];
7696 u8 seed
[I40E_HKEY_ARRAY_SIZE
];
7697 struct i40e_hw
*hw
= &pf
->hw
;
7701 netdev_rss_key_fill((void *)seed
, I40E_HKEY_ARRAY_SIZE
);
7703 /* By default we enable TCP/UDP with IPv4/IPv6 ptypes */
7704 hena
= (u64
)rd32(hw
, I40E_PFQF_HENA(0)) |
7705 ((u64
)rd32(hw
, I40E_PFQF_HENA(1)) << 32);
7706 hena
|= i40e_pf_get_default_rss_hena(pf
);
7708 wr32(hw
, I40E_PFQF_HENA(0), (u32
)hena
);
7709 wr32(hw
, I40E_PFQF_HENA(1), (u32
)(hena
>> 32));
7711 vsi
->rss_size
= min_t(int, pf
->rss_size
, vsi
->num_queue_pairs
);
7713 /* Determine the RSS table size based on the hardware capabilities */
7714 reg_val
= rd32(hw
, I40E_PFQF_CTL_0
);
7715 reg_val
= (pf
->rss_table_size
== 512) ?
7716 (reg_val
| I40E_PFQF_CTL_0_HASHLUTSIZE_512
) :
7717 (reg_val
& ~I40E_PFQF_CTL_0_HASHLUTSIZE_512
);
7718 wr32(hw
, I40E_PFQF_CTL_0
, reg_val
);
7720 if (pf
->flags
& I40E_FLAG_RSS_AQ_CAPABLE
)
7721 return i40e_config_rss_aq(pf
->vsi
[pf
->lan_vsi
], seed
);
7723 return i40e_config_rss_reg(pf
, seed
);
7727 * i40e_reconfig_rss_queues - change number of queues for rss and rebuild
7728 * @pf: board private structure
7729 * @queue_count: the requested queue count for rss.
7731 * returns 0 if rss is not enabled, if enabled returns the final rss queue
7732 * count which may be different from the requested queue count.
7734 int i40e_reconfig_rss_queues(struct i40e_pf
*pf
, int queue_count
)
7736 struct i40e_vsi
*vsi
= pf
->vsi
[pf
->lan_vsi
];
7739 if (!(pf
->flags
& I40E_FLAG_RSS_ENABLED
))
7742 new_rss_size
= min_t(int, queue_count
, pf
->rss_size_max
);
7744 if (queue_count
!= vsi
->num_queue_pairs
) {
7745 vsi
->req_queue_pairs
= queue_count
;
7746 i40e_prep_for_reset(pf
);
7748 pf
->rss_size
= new_rss_size
;
7750 i40e_reset_and_rebuild(pf
, true);
7751 i40e_config_rss(pf
);
7753 dev_info(&pf
->pdev
->dev
, "RSS count: %d\n", pf
->rss_size
);
7754 return pf
->rss_size
;
7758 * i40e_get_npar_bw_setting - Retrieve BW settings for this PF partition
7759 * @pf: board private structure
7761 i40e_status
i40e_get_npar_bw_setting(struct i40e_pf
*pf
)
7764 bool min_valid
, max_valid
;
7767 status
= i40e_read_bw_from_alt_ram(&pf
->hw
, &max_bw
, &min_bw
,
7768 &min_valid
, &max_valid
);
7772 pf
->npar_min_bw
= min_bw
;
7774 pf
->npar_max_bw
= max_bw
;
7781 * i40e_set_npar_bw_setting - Set BW settings for this PF partition
7782 * @pf: board private structure
7784 i40e_status
i40e_set_npar_bw_setting(struct i40e_pf
*pf
)
7786 struct i40e_aqc_configure_partition_bw_data bw_data
;
7789 /* Set the valid bit for this PF */
7790 bw_data
.pf_valid_bits
= cpu_to_le16(BIT(pf
->hw
.pf_id
));
7791 bw_data
.max_bw
[pf
->hw
.pf_id
] = pf
->npar_max_bw
& I40E_ALT_BW_VALUE_MASK
;
7792 bw_data
.min_bw
[pf
->hw
.pf_id
] = pf
->npar_min_bw
& I40E_ALT_BW_VALUE_MASK
;
7794 /* Set the new bandwidths */
7795 status
= i40e_aq_configure_partition_bw(&pf
->hw
, &bw_data
, NULL
);
7801 * i40e_commit_npar_bw_setting - Commit BW settings for this PF partition
7802 * @pf: board private structure
7804 i40e_status
i40e_commit_npar_bw_setting(struct i40e_pf
*pf
)
7806 /* Commit temporary BW setting to permanent NVM image */
7807 enum i40e_admin_queue_err last_aq_status
;
7811 if (pf
->hw
.partition_id
!= 1) {
7812 dev_info(&pf
->pdev
->dev
,
7813 "Commit BW only works on partition 1! This is partition %d",
7814 pf
->hw
.partition_id
);
7815 ret
= I40E_NOT_SUPPORTED
;
7819 /* Acquire NVM for read access */
7820 ret
= i40e_acquire_nvm(&pf
->hw
, I40E_RESOURCE_READ
);
7821 last_aq_status
= pf
->hw
.aq
.asq_last_status
;
7823 dev_info(&pf
->pdev
->dev
,
7824 "Cannot acquire NVM for read access, err %s aq_err %s\n",
7825 i40e_stat_str(&pf
->hw
, ret
),
7826 i40e_aq_str(&pf
->hw
, last_aq_status
));
7830 /* Read word 0x10 of NVM - SW compatibility word 1 */
7831 ret
= i40e_aq_read_nvm(&pf
->hw
,
7832 I40E_SR_NVM_CONTROL_WORD
,
7833 0x10, sizeof(nvm_word
), &nvm_word
,
7835 /* Save off last admin queue command status before releasing
7838 last_aq_status
= pf
->hw
.aq
.asq_last_status
;
7839 i40e_release_nvm(&pf
->hw
);
7841 dev_info(&pf
->pdev
->dev
, "NVM read error, err %s aq_err %s\n",
7842 i40e_stat_str(&pf
->hw
, ret
),
7843 i40e_aq_str(&pf
->hw
, last_aq_status
));
7847 /* Wait a bit for NVM release to complete */
7850 /* Acquire NVM for write access */
7851 ret
= i40e_acquire_nvm(&pf
->hw
, I40E_RESOURCE_WRITE
);
7852 last_aq_status
= pf
->hw
.aq
.asq_last_status
;
7854 dev_info(&pf
->pdev
->dev
,
7855 "Cannot acquire NVM for write access, err %s aq_err %s\n",
7856 i40e_stat_str(&pf
->hw
, ret
),
7857 i40e_aq_str(&pf
->hw
, last_aq_status
));
7860 /* Write it back out unchanged to initiate update NVM,
7861 * which will force a write of the shadow (alt) RAM to
7862 * the NVM - thus storing the bandwidth values permanently.
7864 ret
= i40e_aq_update_nvm(&pf
->hw
,
7865 I40E_SR_NVM_CONTROL_WORD
,
7866 0x10, sizeof(nvm_word
),
7867 &nvm_word
, true, NULL
);
7868 /* Save off last admin queue command status before releasing
7871 last_aq_status
= pf
->hw
.aq
.asq_last_status
;
7872 i40e_release_nvm(&pf
->hw
);
7874 dev_info(&pf
->pdev
->dev
,
7875 "BW settings NOT SAVED, err %s aq_err %s\n",
7876 i40e_stat_str(&pf
->hw
, ret
),
7877 i40e_aq_str(&pf
->hw
, last_aq_status
));
7884 * i40e_sw_init - Initialize general software structures (struct i40e_pf)
7885 * @pf: board private structure to initialize
7887 * i40e_sw_init initializes the Adapter private data structure.
7888 * Fields are initialized based on PCI device information and
7889 * OS network device settings (MTU size).
7891 static int i40e_sw_init(struct i40e_pf
*pf
)
7896 pf
->msg_enable
= netif_msg_init(I40E_DEFAULT_MSG_ENABLE
,
7897 (NETIF_MSG_DRV
|NETIF_MSG_PROBE
|NETIF_MSG_LINK
));
7898 pf
->hw
.debug_mask
= pf
->msg_enable
| I40E_DEBUG_DIAG
;
7899 if (debug
!= -1 && debug
!= I40E_DEFAULT_MSG_ENABLE
) {
7900 if (I40E_DEBUG_USER
& debug
)
7901 pf
->hw
.debug_mask
= debug
;
7902 pf
->msg_enable
= netif_msg_init((debug
& ~I40E_DEBUG_USER
),
7903 I40E_DEFAULT_MSG_ENABLE
);
7906 /* Set default capability flags */
7907 pf
->flags
= I40E_FLAG_RX_CSUM_ENABLED
|
7908 I40E_FLAG_MSI_ENABLED
|
7909 I40E_FLAG_LINK_POLLING_ENABLED
|
7910 I40E_FLAG_MSIX_ENABLED
;
7912 if (iommu_present(&pci_bus_type
))
7913 pf
->flags
|= I40E_FLAG_RX_PS_ENABLED
;
7915 pf
->flags
|= I40E_FLAG_RX_1BUF_ENABLED
;
7917 /* Set default ITR */
7918 pf
->rx_itr_default
= I40E_ITR_DYNAMIC
| I40E_ITR_RX_DEF
;
7919 pf
->tx_itr_default
= I40E_ITR_DYNAMIC
| I40E_ITR_TX_DEF
;
7921 /* Depending on PF configurations, it is possible that the RSS
7922 * maximum might end up larger than the available queues
7924 pf
->rss_size_max
= BIT(pf
->hw
.func_caps
.rss_table_entry_width
);
7926 pf
->rss_table_size
= pf
->hw
.func_caps
.rss_table_size
;
7927 pf
->rss_size_max
= min_t(int, pf
->rss_size_max
,
7928 pf
->hw
.func_caps
.num_tx_qp
);
7929 if (pf
->hw
.func_caps
.rss
) {
7930 pf
->flags
|= I40E_FLAG_RSS_ENABLED
;
7931 pf
->rss_size
= min_t(int, pf
->rss_size_max
, num_online_cpus());
7934 /* MFP mode enabled */
7935 if (pf
->hw
.func_caps
.npar_enable
|| pf
->hw
.func_caps
.flex10_enable
) {
7936 pf
->flags
|= I40E_FLAG_MFP_ENABLED
;
7937 dev_info(&pf
->pdev
->dev
, "MFP mode Enabled\n");
7938 if (i40e_get_npar_bw_setting(pf
))
7939 dev_warn(&pf
->pdev
->dev
,
7940 "Could not get NPAR bw settings\n");
7942 dev_info(&pf
->pdev
->dev
,
7943 "Min BW = %8.8x, Max BW = %8.8x\n",
7944 pf
->npar_min_bw
, pf
->npar_max_bw
);
7947 /* FW/NVM is not yet fixed in this regard */
7948 if ((pf
->hw
.func_caps
.fd_filters_guaranteed
> 0) ||
7949 (pf
->hw
.func_caps
.fd_filters_best_effort
> 0)) {
7950 pf
->flags
|= I40E_FLAG_FD_ATR_ENABLED
;
7951 pf
->atr_sample_rate
= I40E_DEFAULT_ATR_SAMPLE_RATE
;
7952 if (pf
->flags
& I40E_FLAG_MFP_ENABLED
&&
7953 pf
->hw
.num_partitions
> 1)
7954 dev_info(&pf
->pdev
->dev
,
7955 "Flow Director Sideband mode Disabled in MFP mode\n");
7957 pf
->flags
|= I40E_FLAG_FD_SB_ENABLED
;
7958 pf
->fdir_pf_filter_count
=
7959 pf
->hw
.func_caps
.fd_filters_guaranteed
;
7960 pf
->hw
.fdir_shared_filter_count
=
7961 pf
->hw
.func_caps
.fd_filters_best_effort
;
7964 if (pf
->hw
.func_caps
.vmdq
) {
7965 pf
->num_vmdq_vsis
= I40E_DEFAULT_NUM_VMDQ_VSI
;
7966 pf
->flags
|= I40E_FLAG_VMDQ_ENABLED
;
7970 i40e_init_pf_fcoe(pf
);
7972 #endif /* I40E_FCOE */
7973 #ifdef CONFIG_PCI_IOV
7974 if (pf
->hw
.func_caps
.num_vfs
&& pf
->hw
.partition_id
== 1) {
7975 pf
->num_vf_qps
= I40E_DEFAULT_QUEUES_PER_VF
;
7976 pf
->flags
|= I40E_FLAG_SRIOV_ENABLED
;
7977 pf
->num_req_vfs
= min_t(int,
7978 pf
->hw
.func_caps
.num_vfs
,
7981 #endif /* CONFIG_PCI_IOV */
7982 if (pf
->hw
.mac
.type
== I40E_MAC_X722
) {
7983 pf
->flags
|= I40E_FLAG_RSS_AQ_CAPABLE
|
7984 I40E_FLAG_128_QP_RSS_CAPABLE
|
7985 I40E_FLAG_HW_ATR_EVICT_CAPABLE
|
7986 I40E_FLAG_OUTER_UDP_CSUM_CAPABLE
|
7987 I40E_FLAG_WB_ON_ITR_CAPABLE
|
7988 I40E_FLAG_MULTIPLE_TCP_UDP_RSS_PCTYPE
;
7990 pf
->eeprom_version
= 0xDEAD;
7991 pf
->lan_veb
= I40E_NO_VEB
;
7992 pf
->lan_vsi
= I40E_NO_VSI
;
7994 /* By default FW has this off for performance reasons */
7995 pf
->flags
&= ~I40E_FLAG_VEB_STATS_ENABLED
;
7997 /* set up queue assignment tracking */
7998 size
= sizeof(struct i40e_lump_tracking
)
7999 + (sizeof(u16
) * pf
->hw
.func_caps
.num_tx_qp
);
8000 pf
->qp_pile
= kzalloc(size
, GFP_KERNEL
);
8005 pf
->qp_pile
->num_entries
= pf
->hw
.func_caps
.num_tx_qp
;
8006 pf
->qp_pile
->search_hint
= 0;
8008 pf
->tx_timeout_recovery_level
= 1;
8010 mutex_init(&pf
->switch_mutex
);
8012 /* If NPAR is enabled nudge the Tx scheduler */
8013 if (pf
->hw
.func_caps
.npar_enable
&& (!i40e_get_npar_bw_setting(pf
)))
8014 i40e_set_npar_bw_setting(pf
);
8021 * i40e_set_ntuple - set the ntuple feature flag and take action
8022 * @pf: board private structure to initialize
8023 * @features: the feature set that the stack is suggesting
8025 * returns a bool to indicate if reset needs to happen
8027 bool i40e_set_ntuple(struct i40e_pf
*pf
, netdev_features_t features
)
8029 bool need_reset
= false;
8031 /* Check if Flow Director n-tuple support was enabled or disabled. If
8032 * the state changed, we need to reset.
8034 if (features
& NETIF_F_NTUPLE
) {
8035 /* Enable filters and mark for reset */
8036 if (!(pf
->flags
& I40E_FLAG_FD_SB_ENABLED
))
8038 pf
->flags
|= I40E_FLAG_FD_SB_ENABLED
;
8040 /* turn off filters, mark for reset and clear SW filter list */
8041 if (pf
->flags
& I40E_FLAG_FD_SB_ENABLED
) {
8043 i40e_fdir_filter_exit(pf
);
8045 pf
->flags
&= ~I40E_FLAG_FD_SB_ENABLED
;
8046 pf
->auto_disable_flags
&= ~I40E_FLAG_FD_SB_ENABLED
;
8047 /* reset fd counters */
8048 pf
->fd_add_err
= pf
->fd_atr_cnt
= pf
->fd_tcp_rule
= 0;
8049 pf
->fdir_pf_active_filters
= 0;
8050 pf
->flags
|= I40E_FLAG_FD_ATR_ENABLED
;
8051 if (I40E_DEBUG_FD
& pf
->hw
.debug_mask
)
8052 dev_info(&pf
->pdev
->dev
, "ATR re-enabled.\n");
8053 /* if ATR was auto disabled it can be re-enabled. */
8054 if ((pf
->flags
& I40E_FLAG_FD_ATR_ENABLED
) &&
8055 (pf
->auto_disable_flags
& I40E_FLAG_FD_ATR_ENABLED
))
8056 pf
->auto_disable_flags
&= ~I40E_FLAG_FD_ATR_ENABLED
;
8062 * i40e_set_features - set the netdev feature flags
8063 * @netdev: ptr to the netdev being adjusted
8064 * @features: the feature set that the stack is suggesting
8066 static int i40e_set_features(struct net_device
*netdev
,
8067 netdev_features_t features
)
8069 struct i40e_netdev_priv
*np
= netdev_priv(netdev
);
8070 struct i40e_vsi
*vsi
= np
->vsi
;
8071 struct i40e_pf
*pf
= vsi
->back
;
8074 if (features
& NETIF_F_HW_VLAN_CTAG_RX
)
8075 i40e_vlan_stripping_enable(vsi
);
8077 i40e_vlan_stripping_disable(vsi
);
8079 need_reset
= i40e_set_ntuple(pf
, features
);
8082 i40e_do_reset(pf
, BIT_ULL(__I40E_PF_RESET_REQUESTED
));
8087 #ifdef CONFIG_I40E_VXLAN
8089 * i40e_get_vxlan_port_idx - Lookup a possibly offloaded for Rx UDP port
8090 * @pf: board private structure
8091 * @port: The UDP port to look up
8093 * Returns the index number or I40E_MAX_PF_UDP_OFFLOAD_PORTS if port not found
8095 static u8
i40e_get_vxlan_port_idx(struct i40e_pf
*pf
, __be16 port
)
8099 for (i
= 0; i
< I40E_MAX_PF_UDP_OFFLOAD_PORTS
; i
++) {
8100 if (pf
->vxlan_ports
[i
] == port
)
8108 * i40e_add_vxlan_port - Get notifications about VXLAN ports that come up
8109 * @netdev: This physical port's netdev
8110 * @sa_family: Socket Family that VXLAN is notifying us about
8111 * @port: New UDP port number that VXLAN started listening to
8113 static void i40e_add_vxlan_port(struct net_device
*netdev
,
8114 sa_family_t sa_family
, __be16 port
)
8116 struct i40e_netdev_priv
*np
= netdev_priv(netdev
);
8117 struct i40e_vsi
*vsi
= np
->vsi
;
8118 struct i40e_pf
*pf
= vsi
->back
;
8122 if (sa_family
== AF_INET6
)
8125 idx
= i40e_get_vxlan_port_idx(pf
, port
);
8127 /* Check if port already exists */
8128 if (idx
< I40E_MAX_PF_UDP_OFFLOAD_PORTS
) {
8129 netdev_info(netdev
, "vxlan port %d already offloaded\n",
8134 /* Now check if there is space to add the new port */
8135 next_idx
= i40e_get_vxlan_port_idx(pf
, 0);
8137 if (next_idx
== I40E_MAX_PF_UDP_OFFLOAD_PORTS
) {
8138 netdev_info(netdev
, "maximum number of vxlan UDP ports reached, not adding port %d\n",
8143 /* New port: add it and mark its index in the bitmap */
8144 pf
->vxlan_ports
[next_idx
] = port
;
8145 pf
->pending_vxlan_bitmap
|= BIT_ULL(next_idx
);
8146 pf
->flags
|= I40E_FLAG_VXLAN_FILTER_SYNC
;
8150 * i40e_del_vxlan_port - Get notifications about VXLAN ports that go away
8151 * @netdev: This physical port's netdev
8152 * @sa_family: Socket Family that VXLAN is notifying us about
8153 * @port: UDP port number that VXLAN stopped listening to
8155 static void i40e_del_vxlan_port(struct net_device
*netdev
,
8156 sa_family_t sa_family
, __be16 port
)
8158 struct i40e_netdev_priv
*np
= netdev_priv(netdev
);
8159 struct i40e_vsi
*vsi
= np
->vsi
;
8160 struct i40e_pf
*pf
= vsi
->back
;
8163 if (sa_family
== AF_INET6
)
8166 idx
= i40e_get_vxlan_port_idx(pf
, port
);
8168 /* Check if port already exists */
8169 if (idx
< I40E_MAX_PF_UDP_OFFLOAD_PORTS
) {
8170 /* if port exists, set it to 0 (mark for deletion)
8171 * and make it pending
8173 pf
->vxlan_ports
[idx
] = 0;
8174 pf
->pending_vxlan_bitmap
|= BIT_ULL(idx
);
8175 pf
->flags
|= I40E_FLAG_VXLAN_FILTER_SYNC
;
8177 netdev_warn(netdev
, "vxlan port %d was not found, not deleting\n",
8183 static int i40e_get_phys_port_id(struct net_device
*netdev
,
8184 struct netdev_phys_item_id
*ppid
)
8186 struct i40e_netdev_priv
*np
= netdev_priv(netdev
);
8187 struct i40e_pf
*pf
= np
->vsi
->back
;
8188 struct i40e_hw
*hw
= &pf
->hw
;
8190 if (!(pf
->flags
& I40E_FLAG_PORT_ID_VALID
))
8193 ppid
->id_len
= min_t(int, sizeof(hw
->mac
.port_addr
), sizeof(ppid
->id
));
8194 memcpy(ppid
->id
, hw
->mac
.port_addr
, ppid
->id_len
);
8200 * i40e_ndo_fdb_add - add an entry to the hardware database
8201 * @ndm: the input from the stack
8202 * @tb: pointer to array of nladdr (unused)
8203 * @dev: the net device pointer
8204 * @addr: the MAC address entry being added
8205 * @flags: instructions from stack about fdb operation
8207 static int i40e_ndo_fdb_add(struct ndmsg
*ndm
, struct nlattr
*tb
[],
8208 struct net_device
*dev
,
8209 const unsigned char *addr
, u16 vid
,
8212 struct i40e_netdev_priv
*np
= netdev_priv(dev
);
8213 struct i40e_pf
*pf
= np
->vsi
->back
;
8216 if (!(pf
->flags
& I40E_FLAG_SRIOV_ENABLED
))
8220 pr_info("%s: vlans aren't supported yet for dev_uc|mc_add()\n", dev
->name
);
8224 /* Hardware does not support aging addresses so if a
8225 * ndm_state is given only allow permanent addresses
8227 if (ndm
->ndm_state
&& !(ndm
->ndm_state
& NUD_PERMANENT
)) {
8228 netdev_info(dev
, "FDB only supports static addresses\n");
8232 if (is_unicast_ether_addr(addr
) || is_link_local_ether_addr(addr
))
8233 err
= dev_uc_add_excl(dev
, addr
);
8234 else if (is_multicast_ether_addr(addr
))
8235 err
= dev_mc_add_excl(dev
, addr
);
8239 /* Only return duplicate errors if NLM_F_EXCL is set */
8240 if (err
== -EEXIST
&& !(flags
& NLM_F_EXCL
))
8247 * i40e_ndo_bridge_setlink - Set the hardware bridge mode
8248 * @dev: the netdev being configured
8249 * @nlh: RTNL message
8251 * Inserts a new hardware bridge if not already created and
8252 * enables the bridging mode requested (VEB or VEPA). If the
8253 * hardware bridge has already been inserted and the request
8254 * is to change the mode then that requires a PF reset to
8255 * allow rebuild of the components with required hardware
8256 * bridge mode enabled.
8258 static int i40e_ndo_bridge_setlink(struct net_device
*dev
,
8259 struct nlmsghdr
*nlh
,
8262 struct i40e_netdev_priv
*np
= netdev_priv(dev
);
8263 struct i40e_vsi
*vsi
= np
->vsi
;
8264 struct i40e_pf
*pf
= vsi
->back
;
8265 struct i40e_veb
*veb
= NULL
;
8266 struct nlattr
*attr
, *br_spec
;
8269 /* Only for PF VSI for now */
8270 if (vsi
->seid
!= pf
->vsi
[pf
->lan_vsi
]->seid
)
8273 /* Find the HW bridge for PF VSI */
8274 for (i
= 0; i
< I40E_MAX_VEB
&& !veb
; i
++) {
8275 if (pf
->veb
[i
] && pf
->veb
[i
]->seid
== vsi
->uplink_seid
)
8279 br_spec
= nlmsg_find_attr(nlh
, sizeof(struct ifinfomsg
), IFLA_AF_SPEC
);
8281 nla_for_each_nested(attr
, br_spec
, rem
) {
8284 if (nla_type(attr
) != IFLA_BRIDGE_MODE
)
8287 mode
= nla_get_u16(attr
);
8288 if ((mode
!= BRIDGE_MODE_VEPA
) &&
8289 (mode
!= BRIDGE_MODE_VEB
))
8292 /* Insert a new HW bridge */
8294 veb
= i40e_veb_setup(pf
, 0, vsi
->uplink_seid
, vsi
->seid
,
8295 vsi
->tc_config
.enabled_tc
);
8297 veb
->bridge_mode
= mode
;
8298 i40e_config_bridge_mode(veb
);
8300 /* No Bridge HW offload available */
8304 } else if (mode
!= veb
->bridge_mode
) {
8305 /* Existing HW bridge but different mode needs reset */
8306 veb
->bridge_mode
= mode
;
8307 /* TODO: If no VFs or VMDq VSIs, disallow VEB mode */
8308 if (mode
== BRIDGE_MODE_VEB
)
8309 pf
->flags
|= I40E_FLAG_VEB_MODE_ENABLED
;
8311 pf
->flags
&= ~I40E_FLAG_VEB_MODE_ENABLED
;
8312 i40e_do_reset(pf
, BIT_ULL(__I40E_PF_RESET_REQUESTED
));
8321 * i40e_ndo_bridge_getlink - Get the hardware bridge mode
8324 * @seq: RTNL message seq #
8325 * @dev: the netdev being configured
8326 * @filter_mask: unused
8327 * @nlflags: netlink flags passed in
8329 * Return the mode in which the hardware bridge is operating in
8332 static int i40e_ndo_bridge_getlink(struct sk_buff
*skb
, u32 pid
, u32 seq
,
8333 struct net_device
*dev
,
8334 u32 __always_unused filter_mask
,
8337 struct i40e_netdev_priv
*np
= netdev_priv(dev
);
8338 struct i40e_vsi
*vsi
= np
->vsi
;
8339 struct i40e_pf
*pf
= vsi
->back
;
8340 struct i40e_veb
*veb
= NULL
;
8343 /* Only for PF VSI for now */
8344 if (vsi
->seid
!= pf
->vsi
[pf
->lan_vsi
]->seid
)
8347 /* Find the HW bridge for the PF VSI */
8348 for (i
= 0; i
< I40E_MAX_VEB
&& !veb
; i
++) {
8349 if (pf
->veb
[i
] && pf
->veb
[i
]->seid
== vsi
->uplink_seid
)
8356 return ndo_dflt_bridge_getlink(skb
, pid
, seq
, dev
, veb
->bridge_mode
,
8357 nlflags
, 0, 0, filter_mask
, NULL
);
8360 #define I40E_MAX_TUNNEL_HDR_LEN 80
8362 * i40e_features_check - Validate encapsulated packet conforms to limits
8364 * @netdev: This physical port's netdev
8365 * @features: Offload features that the stack believes apply
8367 static netdev_features_t
i40e_features_check(struct sk_buff
*skb
,
8368 struct net_device
*dev
,
8369 netdev_features_t features
)
8371 if (skb
->encapsulation
&&
8372 (skb_inner_mac_header(skb
) - skb_transport_header(skb
) >
8373 I40E_MAX_TUNNEL_HDR_LEN
))
8374 return features
& ~(NETIF_F_ALL_CSUM
| NETIF_F_GSO_MASK
);
8379 static const struct net_device_ops i40e_netdev_ops
= {
8380 .ndo_open
= i40e_open
,
8381 .ndo_stop
= i40e_close
,
8382 .ndo_start_xmit
= i40e_lan_xmit_frame
,
8383 .ndo_get_stats64
= i40e_get_netdev_stats_struct
,
8384 .ndo_set_rx_mode
= i40e_set_rx_mode
,
8385 .ndo_validate_addr
= eth_validate_addr
,
8386 .ndo_set_mac_address
= i40e_set_mac
,
8387 .ndo_change_mtu
= i40e_change_mtu
,
8388 .ndo_do_ioctl
= i40e_ioctl
,
8389 .ndo_tx_timeout
= i40e_tx_timeout
,
8390 .ndo_vlan_rx_add_vid
= i40e_vlan_rx_add_vid
,
8391 .ndo_vlan_rx_kill_vid
= i40e_vlan_rx_kill_vid
,
8392 #ifdef CONFIG_NET_POLL_CONTROLLER
8393 .ndo_poll_controller
= i40e_netpoll
,
8395 .ndo_setup_tc
= i40e_setup_tc
,
8397 .ndo_fcoe_enable
= i40e_fcoe_enable
,
8398 .ndo_fcoe_disable
= i40e_fcoe_disable
,
8400 .ndo_set_features
= i40e_set_features
,
8401 .ndo_set_vf_mac
= i40e_ndo_set_vf_mac
,
8402 .ndo_set_vf_vlan
= i40e_ndo_set_vf_port_vlan
,
8403 .ndo_set_vf_rate
= i40e_ndo_set_vf_bw
,
8404 .ndo_get_vf_config
= i40e_ndo_get_vf_config
,
8405 .ndo_set_vf_link_state
= i40e_ndo_set_vf_link_state
,
8406 .ndo_set_vf_spoofchk
= i40e_ndo_set_vf_spoofchk
,
8407 #ifdef CONFIG_I40E_VXLAN
8408 .ndo_add_vxlan_port
= i40e_add_vxlan_port
,
8409 .ndo_del_vxlan_port
= i40e_del_vxlan_port
,
8411 .ndo_get_phys_port_id
= i40e_get_phys_port_id
,
8412 .ndo_fdb_add
= i40e_ndo_fdb_add
,
8413 .ndo_features_check
= i40e_features_check
,
8414 .ndo_bridge_getlink
= i40e_ndo_bridge_getlink
,
8415 .ndo_bridge_setlink
= i40e_ndo_bridge_setlink
,
8419 * i40e_config_netdev - Setup the netdev flags
8420 * @vsi: the VSI being configured
8422 * Returns 0 on success, negative value on failure
8424 static int i40e_config_netdev(struct i40e_vsi
*vsi
)
8426 u8 brdcast
[ETH_ALEN
] = {0xff, 0xff, 0xff, 0xff, 0xff, 0xff};
8427 struct i40e_pf
*pf
= vsi
->back
;
8428 struct i40e_hw
*hw
= &pf
->hw
;
8429 struct i40e_netdev_priv
*np
;
8430 struct net_device
*netdev
;
8431 u8 mac_addr
[ETH_ALEN
];
8434 etherdev_size
= sizeof(struct i40e_netdev_priv
);
8435 netdev
= alloc_etherdev_mq(etherdev_size
, vsi
->alloc_queue_pairs
);
8439 vsi
->netdev
= netdev
;
8440 np
= netdev_priv(netdev
);
8443 netdev
->hw_enc_features
|= NETIF_F_IP_CSUM
|
8444 NETIF_F_GSO_UDP_TUNNEL
|
8447 netdev
->features
= NETIF_F_SG
|
8451 NETIF_F_GSO_UDP_TUNNEL
|
8452 NETIF_F_HW_VLAN_CTAG_TX
|
8453 NETIF_F_HW_VLAN_CTAG_RX
|
8454 NETIF_F_HW_VLAN_CTAG_FILTER
|
8463 if (!(pf
->flags
& I40E_FLAG_MFP_ENABLED
))
8464 netdev
->features
|= NETIF_F_NTUPLE
;
8466 /* copy netdev features into list of user selectable features */
8467 netdev
->hw_features
|= netdev
->features
;
8469 if (vsi
->type
== I40E_VSI_MAIN
) {
8470 SET_NETDEV_DEV(netdev
, &pf
->pdev
->dev
);
8471 ether_addr_copy(mac_addr
, hw
->mac
.perm_addr
);
8472 /* The following steps are necessary to prevent reception
8473 * of tagged packets - some older NVM configurations load a
8474 * default a MAC-VLAN filter that accepts any tagged packet
8475 * which must be replaced by a normal filter.
8477 if (!i40e_rm_default_mac_filter(vsi
, mac_addr
))
8478 i40e_add_filter(vsi
, mac_addr
,
8479 I40E_VLAN_ANY
, false, true);
8481 /* relate the VSI_VMDQ name to the VSI_MAIN name */
8482 snprintf(netdev
->name
, IFNAMSIZ
, "%sv%%d",
8483 pf
->vsi
[pf
->lan_vsi
]->netdev
->name
);
8484 random_ether_addr(mac_addr
);
8485 i40e_add_filter(vsi
, mac_addr
, I40E_VLAN_ANY
, false, false);
8487 i40e_add_filter(vsi
, brdcast
, I40E_VLAN_ANY
, false, false);
8489 ether_addr_copy(netdev
->dev_addr
, mac_addr
);
8490 ether_addr_copy(netdev
->perm_addr
, mac_addr
);
8491 /* vlan gets same features (except vlan offload)
8492 * after any tweaks for specific VSI types
8494 netdev
->vlan_features
= netdev
->features
& ~(NETIF_F_HW_VLAN_CTAG_TX
|
8495 NETIF_F_HW_VLAN_CTAG_RX
|
8496 NETIF_F_HW_VLAN_CTAG_FILTER
);
8497 netdev
->priv_flags
|= IFF_UNICAST_FLT
;
8498 netdev
->priv_flags
|= IFF_SUPP_NOFCS
;
8499 /* Setup netdev TC information */
8500 i40e_vsi_config_netdev_tc(vsi
, vsi
->tc_config
.enabled_tc
);
8502 netdev
->netdev_ops
= &i40e_netdev_ops
;
8503 netdev
->watchdog_timeo
= 5 * HZ
;
8504 i40e_set_ethtool_ops(netdev
);
8506 i40e_fcoe_config_netdev(netdev
, vsi
);
8513 * i40e_vsi_delete - Delete a VSI from the switch
8514 * @vsi: the VSI being removed
8516 * Returns 0 on success, negative value on failure
8518 static void i40e_vsi_delete(struct i40e_vsi
*vsi
)
8520 /* remove default VSI is not allowed */
8521 if (vsi
== vsi
->back
->vsi
[vsi
->back
->lan_vsi
])
8524 i40e_aq_delete_element(&vsi
->back
->hw
, vsi
->seid
, NULL
);
8528 * i40e_is_vsi_uplink_mode_veb - Check if the VSI's uplink bridge mode is VEB
8529 * @vsi: the VSI being queried
8531 * Returns 1 if HW bridge mode is VEB and return 0 in case of VEPA mode
8533 int i40e_is_vsi_uplink_mode_veb(struct i40e_vsi
*vsi
)
8535 struct i40e_veb
*veb
;
8536 struct i40e_pf
*pf
= vsi
->back
;
8538 /* Uplink is not a bridge so default to VEB */
8539 if (vsi
->veb_idx
== I40E_NO_VEB
)
8542 veb
= pf
->veb
[vsi
->veb_idx
];
8543 /* Uplink is a bridge in VEPA mode */
8544 if (veb
&& (veb
->bridge_mode
& BRIDGE_MODE_VEPA
))
8547 /* Uplink is a bridge in VEB mode */
8552 * i40e_add_vsi - Add a VSI to the switch
8553 * @vsi: the VSI being configured
8555 * This initializes a VSI context depending on the VSI type to be added and
8556 * passes it down to the add_vsi aq command.
8558 static int i40e_add_vsi(struct i40e_vsi
*vsi
)
8561 struct i40e_mac_filter
*f
, *ftmp
;
8562 struct i40e_pf
*pf
= vsi
->back
;
8563 struct i40e_hw
*hw
= &pf
->hw
;
8564 struct i40e_vsi_context ctxt
;
8565 u8 enabled_tc
= 0x1; /* TC0 enabled */
8568 memset(&ctxt
, 0, sizeof(ctxt
));
8569 switch (vsi
->type
) {
8571 /* The PF's main VSI is already setup as part of the
8572 * device initialization, so we'll not bother with
8573 * the add_vsi call, but we will retrieve the current
8576 ctxt
.seid
= pf
->main_vsi_seid
;
8577 ctxt
.pf_num
= pf
->hw
.pf_id
;
8579 ret
= i40e_aq_get_vsi_params(&pf
->hw
, &ctxt
, NULL
);
8580 ctxt
.flags
= I40E_AQ_VSI_TYPE_PF
;
8582 dev_info(&pf
->pdev
->dev
,
8583 "couldn't get PF vsi config, err %s aq_err %s\n",
8584 i40e_stat_str(&pf
->hw
, ret
),
8585 i40e_aq_str(&pf
->hw
,
8586 pf
->hw
.aq
.asq_last_status
));
8589 vsi
->info
= ctxt
.info
;
8590 vsi
->info
.valid_sections
= 0;
8592 vsi
->seid
= ctxt
.seid
;
8593 vsi
->id
= ctxt
.vsi_number
;
8595 enabled_tc
= i40e_pf_get_tc_map(pf
);
8597 /* MFP mode setup queue map and update VSI */
8598 if ((pf
->flags
& I40E_FLAG_MFP_ENABLED
) &&
8599 !(pf
->hw
.func_caps
.iscsi
)) { /* NIC type PF */
8600 memset(&ctxt
, 0, sizeof(ctxt
));
8601 ctxt
.seid
= pf
->main_vsi_seid
;
8602 ctxt
.pf_num
= pf
->hw
.pf_id
;
8604 i40e_vsi_setup_queue_map(vsi
, &ctxt
, enabled_tc
, false);
8605 ret
= i40e_aq_update_vsi_params(hw
, &ctxt
, NULL
);
8607 dev_info(&pf
->pdev
->dev
,
8608 "update vsi failed, err %s aq_err %s\n",
8609 i40e_stat_str(&pf
->hw
, ret
),
8610 i40e_aq_str(&pf
->hw
,
8611 pf
->hw
.aq
.asq_last_status
));
8615 /* update the local VSI info queue map */
8616 i40e_vsi_update_queue_map(vsi
, &ctxt
);
8617 vsi
->info
.valid_sections
= 0;
8619 /* Default/Main VSI is only enabled for TC0
8620 * reconfigure it to enable all TCs that are
8621 * available on the port in SFP mode.
8622 * For MFP case the iSCSI PF would use this
8623 * flow to enable LAN+iSCSI TC.
8625 ret
= i40e_vsi_config_tc(vsi
, enabled_tc
);
8627 dev_info(&pf
->pdev
->dev
,
8628 "failed to configure TCs for main VSI tc_map 0x%08x, err %s aq_err %s\n",
8630 i40e_stat_str(&pf
->hw
, ret
),
8631 i40e_aq_str(&pf
->hw
,
8632 pf
->hw
.aq
.asq_last_status
));
8639 ctxt
.pf_num
= hw
->pf_id
;
8641 ctxt
.uplink_seid
= vsi
->uplink_seid
;
8642 ctxt
.connection_type
= I40E_AQ_VSI_CONN_TYPE_NORMAL
;
8643 ctxt
.flags
= I40E_AQ_VSI_TYPE_PF
;
8644 if ((pf
->flags
& I40E_FLAG_VEB_MODE_ENABLED
) &&
8645 (i40e_is_vsi_uplink_mode_veb(vsi
))) {
8646 ctxt
.info
.valid_sections
|=
8647 cpu_to_le16(I40E_AQ_VSI_PROP_SWITCH_VALID
);
8648 ctxt
.info
.switch_id
=
8649 cpu_to_le16(I40E_AQ_VSI_SW_ID_FLAG_ALLOW_LB
);
8651 i40e_vsi_setup_queue_map(vsi
, &ctxt
, enabled_tc
, true);
8654 case I40E_VSI_VMDQ2
:
8655 ctxt
.pf_num
= hw
->pf_id
;
8657 ctxt
.uplink_seid
= vsi
->uplink_seid
;
8658 ctxt
.connection_type
= I40E_AQ_VSI_CONN_TYPE_NORMAL
;
8659 ctxt
.flags
= I40E_AQ_VSI_TYPE_VMDQ2
;
8661 /* This VSI is connected to VEB so the switch_id
8662 * should be set to zero by default.
8664 if (i40e_is_vsi_uplink_mode_veb(vsi
)) {
8665 ctxt
.info
.valid_sections
|=
8666 cpu_to_le16(I40E_AQ_VSI_PROP_SWITCH_VALID
);
8667 ctxt
.info
.switch_id
=
8668 cpu_to_le16(I40E_AQ_VSI_SW_ID_FLAG_ALLOW_LB
);
8671 /* Setup the VSI tx/rx queue map for TC0 only for now */
8672 i40e_vsi_setup_queue_map(vsi
, &ctxt
, enabled_tc
, true);
8675 case I40E_VSI_SRIOV
:
8676 ctxt
.pf_num
= hw
->pf_id
;
8677 ctxt
.vf_num
= vsi
->vf_id
+ hw
->func_caps
.vf_base_id
;
8678 ctxt
.uplink_seid
= vsi
->uplink_seid
;
8679 ctxt
.connection_type
= I40E_AQ_VSI_CONN_TYPE_NORMAL
;
8680 ctxt
.flags
= I40E_AQ_VSI_TYPE_VF
;
8682 /* This VSI is connected to VEB so the switch_id
8683 * should be set to zero by default.
8685 if (i40e_is_vsi_uplink_mode_veb(vsi
)) {
8686 ctxt
.info
.valid_sections
|=
8687 cpu_to_le16(I40E_AQ_VSI_PROP_SWITCH_VALID
);
8688 ctxt
.info
.switch_id
=
8689 cpu_to_le16(I40E_AQ_VSI_SW_ID_FLAG_ALLOW_LB
);
8692 ctxt
.info
.valid_sections
|= cpu_to_le16(I40E_AQ_VSI_PROP_VLAN_VALID
);
8693 ctxt
.info
.port_vlan_flags
|= I40E_AQ_VSI_PVLAN_MODE_ALL
;
8694 if (pf
->vf
[vsi
->vf_id
].spoofchk
) {
8695 ctxt
.info
.valid_sections
|=
8696 cpu_to_le16(I40E_AQ_VSI_PROP_SECURITY_VALID
);
8697 ctxt
.info
.sec_flags
|=
8698 (I40E_AQ_VSI_SEC_FLAG_ENABLE_VLAN_CHK
|
8699 I40E_AQ_VSI_SEC_FLAG_ENABLE_MAC_CHK
);
8701 /* Setup the VSI tx/rx queue map for TC0 only for now */
8702 i40e_vsi_setup_queue_map(vsi
, &ctxt
, enabled_tc
, true);
8707 ret
= i40e_fcoe_vsi_init(vsi
, &ctxt
);
8709 dev_info(&pf
->pdev
->dev
, "failed to initialize FCoE VSI\n");
8714 #endif /* I40E_FCOE */
8719 if (vsi
->type
!= I40E_VSI_MAIN
) {
8720 ret
= i40e_aq_add_vsi(hw
, &ctxt
, NULL
);
8722 dev_info(&vsi
->back
->pdev
->dev
,
8723 "add vsi failed, err %s aq_err %s\n",
8724 i40e_stat_str(&pf
->hw
, ret
),
8725 i40e_aq_str(&pf
->hw
,
8726 pf
->hw
.aq
.asq_last_status
));
8730 vsi
->info
= ctxt
.info
;
8731 vsi
->info
.valid_sections
= 0;
8732 vsi
->seid
= ctxt
.seid
;
8733 vsi
->id
= ctxt
.vsi_number
;
8736 /* If macvlan filters already exist, force them to get loaded */
8737 list_for_each_entry_safe(f
, ftmp
, &vsi
->mac_filter_list
, list
) {
8741 if (f
->is_laa
&& vsi
->type
== I40E_VSI_MAIN
) {
8742 struct i40e_aqc_remove_macvlan_element_data element
;
8744 memset(&element
, 0, sizeof(element
));
8745 ether_addr_copy(element
.mac_addr
, f
->macaddr
);
8746 element
.flags
= I40E_AQC_MACVLAN_DEL_PERFECT_MATCH
;
8747 ret
= i40e_aq_remove_macvlan(hw
, vsi
->seid
,
8750 /* some older FW has a different default */
8752 I40E_AQC_MACVLAN_DEL_IGNORE_VLAN
;
8753 i40e_aq_remove_macvlan(hw
, vsi
->seid
,
8757 i40e_aq_mac_address_write(hw
,
8758 I40E_AQC_WRITE_TYPE_LAA_WOL
,
8763 vsi
->flags
|= I40E_VSI_FLAG_FILTER_CHANGED
;
8764 pf
->flags
|= I40E_FLAG_FILTER_SYNC
;
8767 /* Update VSI BW information */
8768 ret
= i40e_vsi_get_bw_info(vsi
);
8770 dev_info(&pf
->pdev
->dev
,
8771 "couldn't get vsi bw info, err %s aq_err %s\n",
8772 i40e_stat_str(&pf
->hw
, ret
),
8773 i40e_aq_str(&pf
->hw
, pf
->hw
.aq
.asq_last_status
));
8774 /* VSI is already added so not tearing that up */
8783 * i40e_vsi_release - Delete a VSI and free its resources
8784 * @vsi: the VSI being removed
8786 * Returns 0 on success or < 0 on error
8788 int i40e_vsi_release(struct i40e_vsi
*vsi
)
8790 struct i40e_mac_filter
*f
, *ftmp
;
8791 struct i40e_veb
*veb
= NULL
;
8798 /* release of a VEB-owner or last VSI is not allowed */
8799 if (vsi
->flags
& I40E_VSI_FLAG_VEB_OWNER
) {
8800 dev_info(&pf
->pdev
->dev
, "VSI %d has existing VEB %d\n",
8801 vsi
->seid
, vsi
->uplink_seid
);
8804 if (vsi
== pf
->vsi
[pf
->lan_vsi
] &&
8805 !test_bit(__I40E_DOWN
, &pf
->state
)) {
8806 dev_info(&pf
->pdev
->dev
, "Can't remove PF VSI\n");
8810 uplink_seid
= vsi
->uplink_seid
;
8811 if (vsi
->type
!= I40E_VSI_SRIOV
) {
8812 if (vsi
->netdev_registered
) {
8813 vsi
->netdev_registered
= false;
8815 /* results in a call to i40e_close() */
8816 unregister_netdev(vsi
->netdev
);
8819 i40e_vsi_close(vsi
);
8821 i40e_vsi_disable_irq(vsi
);
8824 list_for_each_entry_safe(f
, ftmp
, &vsi
->mac_filter_list
, list
)
8825 i40e_del_filter(vsi
, f
->macaddr
, f
->vlan
,
8826 f
->is_vf
, f
->is_netdev
);
8827 i40e_sync_vsi_filters(vsi
, false);
8829 i40e_vsi_delete(vsi
);
8830 i40e_vsi_free_q_vectors(vsi
);
8832 free_netdev(vsi
->netdev
);
8835 i40e_vsi_clear_rings(vsi
);
8836 i40e_vsi_clear(vsi
);
8838 /* If this was the last thing on the VEB, except for the
8839 * controlling VSI, remove the VEB, which puts the controlling
8840 * VSI onto the next level down in the switch.
8842 * Well, okay, there's one more exception here: don't remove
8843 * the orphan VEBs yet. We'll wait for an explicit remove request
8844 * from up the network stack.
8846 for (n
= 0, i
= 0; i
< pf
->num_alloc_vsi
; i
++) {
8848 pf
->vsi
[i
]->uplink_seid
== uplink_seid
&&
8849 (pf
->vsi
[i
]->flags
& I40E_VSI_FLAG_VEB_OWNER
) == 0) {
8850 n
++; /* count the VSIs */
8853 for (i
= 0; i
< I40E_MAX_VEB
; i
++) {
8856 if (pf
->veb
[i
]->uplink_seid
== uplink_seid
)
8857 n
++; /* count the VEBs */
8858 if (pf
->veb
[i
]->seid
== uplink_seid
)
8861 if (n
== 0 && veb
&& veb
->uplink_seid
!= 0)
8862 i40e_veb_release(veb
);
8868 * i40e_vsi_setup_vectors - Set up the q_vectors for the given VSI
8869 * @vsi: ptr to the VSI
8871 * This should only be called after i40e_vsi_mem_alloc() which allocates the
8872 * corresponding SW VSI structure and initializes num_queue_pairs for the
8873 * newly allocated VSI.
8875 * Returns 0 on success or negative on failure
8877 static int i40e_vsi_setup_vectors(struct i40e_vsi
*vsi
)
8880 struct i40e_pf
*pf
= vsi
->back
;
8882 if (vsi
->q_vectors
[0]) {
8883 dev_info(&pf
->pdev
->dev
, "VSI %d has existing q_vectors\n",
8888 if (vsi
->base_vector
) {
8889 dev_info(&pf
->pdev
->dev
, "VSI %d has non-zero base vector %d\n",
8890 vsi
->seid
, vsi
->base_vector
);
8894 ret
= i40e_vsi_alloc_q_vectors(vsi
);
8896 dev_info(&pf
->pdev
->dev
,
8897 "failed to allocate %d q_vector for VSI %d, ret=%d\n",
8898 vsi
->num_q_vectors
, vsi
->seid
, ret
);
8899 vsi
->num_q_vectors
= 0;
8900 goto vector_setup_out
;
8903 /* In Legacy mode, we do not have to get any other vector since we
8904 * piggyback on the misc/ICR0 for queue interrupts.
8906 if (!(pf
->flags
& I40E_FLAG_MSIX_ENABLED
))
8908 if (vsi
->num_q_vectors
)
8909 vsi
->base_vector
= i40e_get_lump(pf
, pf
->irq_pile
,
8910 vsi
->num_q_vectors
, vsi
->idx
);
8911 if (vsi
->base_vector
< 0) {
8912 dev_info(&pf
->pdev
->dev
,
8913 "failed to get tracking for %d vectors for VSI %d, err=%d\n",
8914 vsi
->num_q_vectors
, vsi
->seid
, vsi
->base_vector
);
8915 i40e_vsi_free_q_vectors(vsi
);
8917 goto vector_setup_out
;
8925 * i40e_vsi_reinit_setup - return and reallocate resources for a VSI
8926 * @vsi: pointer to the vsi.
8928 * This re-allocates a vsi's queue resources.
8930 * Returns pointer to the successfully allocated and configured VSI sw struct
8931 * on success, otherwise returns NULL on failure.
8933 static struct i40e_vsi
*i40e_vsi_reinit_setup(struct i40e_vsi
*vsi
)
8935 struct i40e_pf
*pf
= vsi
->back
;
8939 i40e_put_lump(pf
->qp_pile
, vsi
->base_queue
, vsi
->idx
);
8940 i40e_vsi_clear_rings(vsi
);
8942 i40e_vsi_free_arrays(vsi
, false);
8943 i40e_set_num_rings_in_vsi(vsi
);
8944 ret
= i40e_vsi_alloc_arrays(vsi
, false);
8948 ret
= i40e_get_lump(pf
, pf
->qp_pile
, vsi
->alloc_queue_pairs
, vsi
->idx
);
8950 dev_info(&pf
->pdev
->dev
,
8951 "failed to get tracking for %d queues for VSI %d err %d\n",
8952 vsi
->alloc_queue_pairs
, vsi
->seid
, ret
);
8955 vsi
->base_queue
= ret
;
8957 /* Update the FW view of the VSI. Force a reset of TC and queue
8958 * layout configurations.
8960 enabled_tc
= pf
->vsi
[pf
->lan_vsi
]->tc_config
.enabled_tc
;
8961 pf
->vsi
[pf
->lan_vsi
]->tc_config
.enabled_tc
= 0;
8962 pf
->vsi
[pf
->lan_vsi
]->seid
= pf
->main_vsi_seid
;
8963 i40e_vsi_config_tc(pf
->vsi
[pf
->lan_vsi
], enabled_tc
);
8965 /* assign it some queues */
8966 ret
= i40e_alloc_rings(vsi
);
8970 /* map all of the rings to the q_vectors */
8971 i40e_vsi_map_rings_to_vectors(vsi
);
8975 i40e_vsi_free_q_vectors(vsi
);
8976 if (vsi
->netdev_registered
) {
8977 vsi
->netdev_registered
= false;
8978 unregister_netdev(vsi
->netdev
);
8979 free_netdev(vsi
->netdev
);
8982 i40e_aq_delete_element(&pf
->hw
, vsi
->seid
, NULL
);
8984 i40e_vsi_clear(vsi
);
8989 * i40e_vsi_setup - Set up a VSI by a given type
8990 * @pf: board private structure
8992 * @uplink_seid: the switch element to link to
8993 * @param1: usage depends upon VSI type. For VF types, indicates VF id
8995 * This allocates the sw VSI structure and its queue resources, then add a VSI
8996 * to the identified VEB.
8998 * Returns pointer to the successfully allocated and configure VSI sw struct on
8999 * success, otherwise returns NULL on failure.
9001 struct i40e_vsi
*i40e_vsi_setup(struct i40e_pf
*pf
, u8 type
,
9002 u16 uplink_seid
, u32 param1
)
9004 struct i40e_vsi
*vsi
= NULL
;
9005 struct i40e_veb
*veb
= NULL
;
9009 /* The requested uplink_seid must be either
9010 * - the PF's port seid
9011 * no VEB is needed because this is the PF
9012 * or this is a Flow Director special case VSI
9013 * - seid of an existing VEB
9014 * - seid of a VSI that owns an existing VEB
9015 * - seid of a VSI that doesn't own a VEB
9016 * a new VEB is created and the VSI becomes the owner
9017 * - seid of the PF VSI, which is what creates the first VEB
9018 * this is a special case of the previous
9020 * Find which uplink_seid we were given and create a new VEB if needed
9022 for (i
= 0; i
< I40E_MAX_VEB
; i
++) {
9023 if (pf
->veb
[i
] && pf
->veb
[i
]->seid
== uplink_seid
) {
9029 if (!veb
&& uplink_seid
!= pf
->mac_seid
) {
9031 for (i
= 0; i
< pf
->num_alloc_vsi
; i
++) {
9032 if (pf
->vsi
[i
] && pf
->vsi
[i
]->seid
== uplink_seid
) {
9038 dev_info(&pf
->pdev
->dev
, "no such uplink_seid %d\n",
9043 if (vsi
->uplink_seid
== pf
->mac_seid
)
9044 veb
= i40e_veb_setup(pf
, 0, pf
->mac_seid
, vsi
->seid
,
9045 vsi
->tc_config
.enabled_tc
);
9046 else if ((vsi
->flags
& I40E_VSI_FLAG_VEB_OWNER
) == 0)
9047 veb
= i40e_veb_setup(pf
, 0, vsi
->uplink_seid
, vsi
->seid
,
9048 vsi
->tc_config
.enabled_tc
);
9050 if (vsi
->seid
!= pf
->vsi
[pf
->lan_vsi
]->seid
) {
9051 dev_info(&vsi
->back
->pdev
->dev
,
9052 "New VSI creation error, uplink seid of LAN VSI expected.\n");
9055 /* We come up by default in VEPA mode if SRIOV is not
9056 * already enabled, in which case we can't force VEPA
9059 if (!(pf
->flags
& I40E_FLAG_VEB_MODE_ENABLED
)) {
9060 veb
->bridge_mode
= BRIDGE_MODE_VEPA
;
9061 pf
->flags
&= ~I40E_FLAG_VEB_MODE_ENABLED
;
9063 i40e_config_bridge_mode(veb
);
9065 for (i
= 0; i
< I40E_MAX_VEB
&& !veb
; i
++) {
9066 if (pf
->veb
[i
] && pf
->veb
[i
]->seid
== vsi
->uplink_seid
)
9070 dev_info(&pf
->pdev
->dev
, "couldn't add VEB\n");
9074 vsi
->flags
|= I40E_VSI_FLAG_VEB_OWNER
;
9075 uplink_seid
= veb
->seid
;
9078 /* get vsi sw struct */
9079 v_idx
= i40e_vsi_mem_alloc(pf
, type
);
9082 vsi
= pf
->vsi
[v_idx
];
9086 vsi
->veb_idx
= (veb
? veb
->idx
: I40E_NO_VEB
);
9088 if (type
== I40E_VSI_MAIN
)
9089 pf
->lan_vsi
= v_idx
;
9090 else if (type
== I40E_VSI_SRIOV
)
9091 vsi
->vf_id
= param1
;
9092 /* assign it some queues */
9093 ret
= i40e_get_lump(pf
, pf
->qp_pile
, vsi
->alloc_queue_pairs
,
9096 dev_info(&pf
->pdev
->dev
,
9097 "failed to get tracking for %d queues for VSI %d err=%d\n",
9098 vsi
->alloc_queue_pairs
, vsi
->seid
, ret
);
9101 vsi
->base_queue
= ret
;
9103 /* get a VSI from the hardware */
9104 vsi
->uplink_seid
= uplink_seid
;
9105 ret
= i40e_add_vsi(vsi
);
9109 switch (vsi
->type
) {
9110 /* setup the netdev if needed */
9112 case I40E_VSI_VMDQ2
:
9114 ret
= i40e_config_netdev(vsi
);
9117 ret
= register_netdev(vsi
->netdev
);
9120 vsi
->netdev_registered
= true;
9121 netif_carrier_off(vsi
->netdev
);
9122 #ifdef CONFIG_I40E_DCB
9123 /* Setup DCB netlink interface */
9124 i40e_dcbnl_setup(vsi
);
9125 #endif /* CONFIG_I40E_DCB */
9129 /* set up vectors and rings if needed */
9130 ret
= i40e_vsi_setup_vectors(vsi
);
9134 ret
= i40e_alloc_rings(vsi
);
9138 /* map all of the rings to the q_vectors */
9139 i40e_vsi_map_rings_to_vectors(vsi
);
9141 i40e_vsi_reset_stats(vsi
);
9145 /* no netdev or rings for the other VSI types */
9149 if ((pf
->flags
& I40E_FLAG_RSS_AQ_CAPABLE
) &&
9150 (vsi
->type
== I40E_VSI_VMDQ2
)) {
9151 ret
= i40e_vsi_config_rss(vsi
);
9156 i40e_vsi_free_q_vectors(vsi
);
9158 if (vsi
->netdev_registered
) {
9159 vsi
->netdev_registered
= false;
9160 unregister_netdev(vsi
->netdev
);
9161 free_netdev(vsi
->netdev
);
9165 i40e_aq_delete_element(&pf
->hw
, vsi
->seid
, NULL
);
9167 i40e_vsi_clear(vsi
);
9173 * i40e_veb_get_bw_info - Query VEB BW information
9174 * @veb: the veb to query
9176 * Query the Tx scheduler BW configuration data for given VEB
9178 static int i40e_veb_get_bw_info(struct i40e_veb
*veb
)
9180 struct i40e_aqc_query_switching_comp_ets_config_resp ets_data
;
9181 struct i40e_aqc_query_switching_comp_bw_config_resp bw_data
;
9182 struct i40e_pf
*pf
= veb
->pf
;
9183 struct i40e_hw
*hw
= &pf
->hw
;
9188 ret
= i40e_aq_query_switch_comp_bw_config(hw
, veb
->seid
,
9191 dev_info(&pf
->pdev
->dev
,
9192 "query veb bw config failed, err %s aq_err %s\n",
9193 i40e_stat_str(&pf
->hw
, ret
),
9194 i40e_aq_str(&pf
->hw
, hw
->aq
.asq_last_status
));
9198 ret
= i40e_aq_query_switch_comp_ets_config(hw
, veb
->seid
,
9201 dev_info(&pf
->pdev
->dev
,
9202 "query veb bw ets config failed, err %s aq_err %s\n",
9203 i40e_stat_str(&pf
->hw
, ret
),
9204 i40e_aq_str(&pf
->hw
, hw
->aq
.asq_last_status
));
9208 veb
->bw_limit
= le16_to_cpu(ets_data
.port_bw_limit
);
9209 veb
->bw_max_quanta
= ets_data
.tc_bw_max
;
9210 veb
->is_abs_credits
= bw_data
.absolute_credits_enable
;
9211 veb
->enabled_tc
= ets_data
.tc_valid_bits
;
9212 tc_bw_max
= le16_to_cpu(bw_data
.tc_bw_max
[0]) |
9213 (le16_to_cpu(bw_data
.tc_bw_max
[1]) << 16);
9214 for (i
= 0; i
< I40E_MAX_TRAFFIC_CLASS
; i
++) {
9215 veb
->bw_tc_share_credits
[i
] = bw_data
.tc_bw_share_credits
[i
];
9216 veb
->bw_tc_limit_credits
[i
] =
9217 le16_to_cpu(bw_data
.tc_bw_limits
[i
]);
9218 veb
->bw_tc_max_quanta
[i
] = ((tc_bw_max
>> (i
*4)) & 0x7);
9226 * i40e_veb_mem_alloc - Allocates the next available struct veb in the PF
9227 * @pf: board private structure
9229 * On error: returns error code (negative)
9230 * On success: returns vsi index in PF (positive)
9232 static int i40e_veb_mem_alloc(struct i40e_pf
*pf
)
9235 struct i40e_veb
*veb
;
9238 /* Need to protect the allocation of switch elements at the PF level */
9239 mutex_lock(&pf
->switch_mutex
);
9241 /* VEB list may be fragmented if VEB creation/destruction has
9242 * been happening. We can afford to do a quick scan to look
9243 * for any free slots in the list.
9245 * find next empty veb slot, looping back around if necessary
9248 while ((i
< I40E_MAX_VEB
) && (pf
->veb
[i
] != NULL
))
9250 if (i
>= I40E_MAX_VEB
) {
9252 goto err_alloc_veb
; /* out of VEB slots! */
9255 veb
= kzalloc(sizeof(*veb
), GFP_KERNEL
);
9262 veb
->enabled_tc
= 1;
9267 mutex_unlock(&pf
->switch_mutex
);
9272 * i40e_switch_branch_release - Delete a branch of the switch tree
9273 * @branch: where to start deleting
9275 * This uses recursion to find the tips of the branch to be
9276 * removed, deleting until we get back to and can delete this VEB.
9278 static void i40e_switch_branch_release(struct i40e_veb
*branch
)
9280 struct i40e_pf
*pf
= branch
->pf
;
9281 u16 branch_seid
= branch
->seid
;
9282 u16 veb_idx
= branch
->idx
;
9285 /* release any VEBs on this VEB - RECURSION */
9286 for (i
= 0; i
< I40E_MAX_VEB
; i
++) {
9289 if (pf
->veb
[i
]->uplink_seid
== branch
->seid
)
9290 i40e_switch_branch_release(pf
->veb
[i
]);
9293 /* Release the VSIs on this VEB, but not the owner VSI.
9295 * NOTE: Removing the last VSI on a VEB has the SIDE EFFECT of removing
9296 * the VEB itself, so don't use (*branch) after this loop.
9298 for (i
= 0; i
< pf
->num_alloc_vsi
; i
++) {
9301 if (pf
->vsi
[i
]->uplink_seid
== branch_seid
&&
9302 (pf
->vsi
[i
]->flags
& I40E_VSI_FLAG_VEB_OWNER
) == 0) {
9303 i40e_vsi_release(pf
->vsi
[i
]);
9307 /* There's one corner case where the VEB might not have been
9308 * removed, so double check it here and remove it if needed.
9309 * This case happens if the veb was created from the debugfs
9310 * commands and no VSIs were added to it.
9312 if (pf
->veb
[veb_idx
])
9313 i40e_veb_release(pf
->veb
[veb_idx
]);
9317 * i40e_veb_clear - remove veb struct
9318 * @veb: the veb to remove
9320 static void i40e_veb_clear(struct i40e_veb
*veb
)
9326 struct i40e_pf
*pf
= veb
->pf
;
9328 mutex_lock(&pf
->switch_mutex
);
9329 if (pf
->veb
[veb
->idx
] == veb
)
9330 pf
->veb
[veb
->idx
] = NULL
;
9331 mutex_unlock(&pf
->switch_mutex
);
9338 * i40e_veb_release - Delete a VEB and free its resources
9339 * @veb: the VEB being removed
9341 void i40e_veb_release(struct i40e_veb
*veb
)
9343 struct i40e_vsi
*vsi
= NULL
;
9349 /* find the remaining VSI and check for extras */
9350 for (i
= 0; i
< pf
->num_alloc_vsi
; i
++) {
9351 if (pf
->vsi
[i
] && pf
->vsi
[i
]->uplink_seid
== veb
->seid
) {
9357 dev_info(&pf
->pdev
->dev
,
9358 "can't remove VEB %d with %d VSIs left\n",
9363 /* move the remaining VSI to uplink veb */
9364 vsi
->flags
&= ~I40E_VSI_FLAG_VEB_OWNER
;
9365 if (veb
->uplink_seid
) {
9366 vsi
->uplink_seid
= veb
->uplink_seid
;
9367 if (veb
->uplink_seid
== pf
->mac_seid
)
9368 vsi
->veb_idx
= I40E_NO_VEB
;
9370 vsi
->veb_idx
= veb
->veb_idx
;
9373 vsi
->uplink_seid
= pf
->vsi
[pf
->lan_vsi
]->uplink_seid
;
9374 vsi
->veb_idx
= pf
->vsi
[pf
->lan_vsi
]->veb_idx
;
9377 i40e_aq_delete_element(&pf
->hw
, veb
->seid
, NULL
);
9378 i40e_veb_clear(veb
);
9382 * i40e_add_veb - create the VEB in the switch
9383 * @veb: the VEB to be instantiated
9384 * @vsi: the controlling VSI
9386 static int i40e_add_veb(struct i40e_veb
*veb
, struct i40e_vsi
*vsi
)
9388 struct i40e_pf
*pf
= veb
->pf
;
9389 bool is_default
= veb
->pf
->cur_promisc
;
9390 bool is_cloud
= false;
9393 /* get a VEB from the hardware */
9394 ret
= i40e_aq_add_veb(&pf
->hw
, veb
->uplink_seid
, vsi
->seid
,
9395 veb
->enabled_tc
, is_default
,
9396 is_cloud
, &veb
->seid
, NULL
);
9398 dev_info(&pf
->pdev
->dev
,
9399 "couldn't add VEB, err %s aq_err %s\n",
9400 i40e_stat_str(&pf
->hw
, ret
),
9401 i40e_aq_str(&pf
->hw
, pf
->hw
.aq
.asq_last_status
));
9405 /* get statistics counter */
9406 ret
= i40e_aq_get_veb_parameters(&pf
->hw
, veb
->seid
, NULL
, NULL
,
9407 &veb
->stats_idx
, NULL
, NULL
, NULL
);
9409 dev_info(&pf
->pdev
->dev
,
9410 "couldn't get VEB statistics idx, err %s aq_err %s\n",
9411 i40e_stat_str(&pf
->hw
, ret
),
9412 i40e_aq_str(&pf
->hw
, pf
->hw
.aq
.asq_last_status
));
9415 ret
= i40e_veb_get_bw_info(veb
);
9417 dev_info(&pf
->pdev
->dev
,
9418 "couldn't get VEB bw info, err %s aq_err %s\n",
9419 i40e_stat_str(&pf
->hw
, ret
),
9420 i40e_aq_str(&pf
->hw
, pf
->hw
.aq
.asq_last_status
));
9421 i40e_aq_delete_element(&pf
->hw
, veb
->seid
, NULL
);
9425 vsi
->uplink_seid
= veb
->seid
;
9426 vsi
->veb_idx
= veb
->idx
;
9427 vsi
->flags
|= I40E_VSI_FLAG_VEB_OWNER
;
9433 * i40e_veb_setup - Set up a VEB
9434 * @pf: board private structure
9435 * @flags: VEB setup flags
9436 * @uplink_seid: the switch element to link to
9437 * @vsi_seid: the initial VSI seid
9438 * @enabled_tc: Enabled TC bit-map
9440 * This allocates the sw VEB structure and links it into the switch
9441 * It is possible and legal for this to be a duplicate of an already
9442 * existing VEB. It is also possible for both uplink and vsi seids
9443 * to be zero, in order to create a floating VEB.
9445 * Returns pointer to the successfully allocated VEB sw struct on
9446 * success, otherwise returns NULL on failure.
9448 struct i40e_veb
*i40e_veb_setup(struct i40e_pf
*pf
, u16 flags
,
9449 u16 uplink_seid
, u16 vsi_seid
,
9452 struct i40e_veb
*veb
, *uplink_veb
= NULL
;
9453 int vsi_idx
, veb_idx
;
9456 /* if one seid is 0, the other must be 0 to create a floating relay */
9457 if ((uplink_seid
== 0 || vsi_seid
== 0) &&
9458 (uplink_seid
+ vsi_seid
!= 0)) {
9459 dev_info(&pf
->pdev
->dev
,
9460 "one, not both seid's are 0: uplink=%d vsi=%d\n",
9461 uplink_seid
, vsi_seid
);
9465 /* make sure there is such a vsi and uplink */
9466 for (vsi_idx
= 0; vsi_idx
< pf
->num_alloc_vsi
; vsi_idx
++)
9467 if (pf
->vsi
[vsi_idx
] && pf
->vsi
[vsi_idx
]->seid
== vsi_seid
)
9469 if (vsi_idx
>= pf
->num_alloc_vsi
&& vsi_seid
!= 0) {
9470 dev_info(&pf
->pdev
->dev
, "vsi seid %d not found\n",
9475 if (uplink_seid
&& uplink_seid
!= pf
->mac_seid
) {
9476 for (veb_idx
= 0; veb_idx
< I40E_MAX_VEB
; veb_idx
++) {
9477 if (pf
->veb
[veb_idx
] &&
9478 pf
->veb
[veb_idx
]->seid
== uplink_seid
) {
9479 uplink_veb
= pf
->veb
[veb_idx
];
9484 dev_info(&pf
->pdev
->dev
,
9485 "uplink seid %d not found\n", uplink_seid
);
9490 /* get veb sw struct */
9491 veb_idx
= i40e_veb_mem_alloc(pf
);
9494 veb
= pf
->veb
[veb_idx
];
9496 veb
->uplink_seid
= uplink_seid
;
9497 veb
->veb_idx
= (uplink_veb
? uplink_veb
->idx
: I40E_NO_VEB
);
9498 veb
->enabled_tc
= (enabled_tc
? enabled_tc
: 0x1);
9500 /* create the VEB in the switch */
9501 ret
= i40e_add_veb(veb
, pf
->vsi
[vsi_idx
]);
9504 if (vsi_idx
== pf
->lan_vsi
)
9505 pf
->lan_veb
= veb
->idx
;
9510 i40e_veb_clear(veb
);
9516 * i40e_setup_pf_switch_element - set PF vars based on switch type
9517 * @pf: board private structure
9518 * @ele: element we are building info from
9519 * @num_reported: total number of elements
9520 * @printconfig: should we print the contents
9522 * helper function to assist in extracting a few useful SEID values.
9524 static void i40e_setup_pf_switch_element(struct i40e_pf
*pf
,
9525 struct i40e_aqc_switch_config_element_resp
*ele
,
9526 u16 num_reported
, bool printconfig
)
9528 u16 downlink_seid
= le16_to_cpu(ele
->downlink_seid
);
9529 u16 uplink_seid
= le16_to_cpu(ele
->uplink_seid
);
9530 u8 element_type
= ele
->element_type
;
9531 u16 seid
= le16_to_cpu(ele
->seid
);
9534 dev_info(&pf
->pdev
->dev
,
9535 "type=%d seid=%d uplink=%d downlink=%d\n",
9536 element_type
, seid
, uplink_seid
, downlink_seid
);
9538 switch (element_type
) {
9539 case I40E_SWITCH_ELEMENT_TYPE_MAC
:
9540 pf
->mac_seid
= seid
;
9542 case I40E_SWITCH_ELEMENT_TYPE_VEB
:
9544 if (uplink_seid
!= pf
->mac_seid
)
9546 if (pf
->lan_veb
== I40E_NO_VEB
) {
9549 /* find existing or else empty VEB */
9550 for (v
= 0; v
< I40E_MAX_VEB
; v
++) {
9551 if (pf
->veb
[v
] && (pf
->veb
[v
]->seid
== seid
)) {
9556 if (pf
->lan_veb
== I40E_NO_VEB
) {
9557 v
= i40e_veb_mem_alloc(pf
);
9564 pf
->veb
[pf
->lan_veb
]->seid
= seid
;
9565 pf
->veb
[pf
->lan_veb
]->uplink_seid
= pf
->mac_seid
;
9566 pf
->veb
[pf
->lan_veb
]->pf
= pf
;
9567 pf
->veb
[pf
->lan_veb
]->veb_idx
= I40E_NO_VEB
;
9569 case I40E_SWITCH_ELEMENT_TYPE_VSI
:
9570 if (num_reported
!= 1)
9572 /* This is immediately after a reset so we can assume this is
9575 pf
->mac_seid
= uplink_seid
;
9576 pf
->pf_seid
= downlink_seid
;
9577 pf
->main_vsi_seid
= seid
;
9579 dev_info(&pf
->pdev
->dev
,
9580 "pf_seid=%d main_vsi_seid=%d\n",
9581 pf
->pf_seid
, pf
->main_vsi_seid
);
9583 case I40E_SWITCH_ELEMENT_TYPE_PF
:
9584 case I40E_SWITCH_ELEMENT_TYPE_VF
:
9585 case I40E_SWITCH_ELEMENT_TYPE_EMP
:
9586 case I40E_SWITCH_ELEMENT_TYPE_BMC
:
9587 case I40E_SWITCH_ELEMENT_TYPE_PE
:
9588 case I40E_SWITCH_ELEMENT_TYPE_PA
:
9589 /* ignore these for now */
9592 dev_info(&pf
->pdev
->dev
, "unknown element type=%d seid=%d\n",
9593 element_type
, seid
);
9599 * i40e_fetch_switch_configuration - Get switch config from firmware
9600 * @pf: board private structure
9601 * @printconfig: should we print the contents
9603 * Get the current switch configuration from the device and
9604 * extract a few useful SEID values.
9606 int i40e_fetch_switch_configuration(struct i40e_pf
*pf
, bool printconfig
)
9608 struct i40e_aqc_get_switch_config_resp
*sw_config
;
9614 aq_buf
= kzalloc(I40E_AQ_LARGE_BUF
, GFP_KERNEL
);
9618 sw_config
= (struct i40e_aqc_get_switch_config_resp
*)aq_buf
;
9620 u16 num_reported
, num_total
;
9622 ret
= i40e_aq_get_switch_config(&pf
->hw
, sw_config
,
9626 dev_info(&pf
->pdev
->dev
,
9627 "get switch config failed err %s aq_err %s\n",
9628 i40e_stat_str(&pf
->hw
, ret
),
9629 i40e_aq_str(&pf
->hw
,
9630 pf
->hw
.aq
.asq_last_status
));
9635 num_reported
= le16_to_cpu(sw_config
->header
.num_reported
);
9636 num_total
= le16_to_cpu(sw_config
->header
.num_total
);
9639 dev_info(&pf
->pdev
->dev
,
9640 "header: %d reported %d total\n",
9641 num_reported
, num_total
);
9643 for (i
= 0; i
< num_reported
; i
++) {
9644 struct i40e_aqc_switch_config_element_resp
*ele
=
9645 &sw_config
->element
[i
];
9647 i40e_setup_pf_switch_element(pf
, ele
, num_reported
,
9650 } while (next_seid
!= 0);
9657 * i40e_setup_pf_switch - Setup the HW switch on startup or after reset
9658 * @pf: board private structure
9659 * @reinit: if the Main VSI needs to re-initialized.
9661 * Returns 0 on success, negative value on failure
9663 static int i40e_setup_pf_switch(struct i40e_pf
*pf
, bool reinit
)
9667 /* find out what's out there already */
9668 ret
= i40e_fetch_switch_configuration(pf
, false);
9670 dev_info(&pf
->pdev
->dev
,
9671 "couldn't fetch switch config, err %s aq_err %s\n",
9672 i40e_stat_str(&pf
->hw
, ret
),
9673 i40e_aq_str(&pf
->hw
, pf
->hw
.aq
.asq_last_status
));
9676 i40e_pf_reset_stats(pf
);
9678 /* first time setup */
9679 if (pf
->lan_vsi
== I40E_NO_VSI
|| reinit
) {
9680 struct i40e_vsi
*vsi
= NULL
;
9683 /* Set up the PF VSI associated with the PF's main VSI
9684 * that is already in the HW switch
9686 if (pf
->lan_veb
!= I40E_NO_VEB
&& pf
->veb
[pf
->lan_veb
])
9687 uplink_seid
= pf
->veb
[pf
->lan_veb
]->seid
;
9689 uplink_seid
= pf
->mac_seid
;
9690 if (pf
->lan_vsi
== I40E_NO_VSI
)
9691 vsi
= i40e_vsi_setup(pf
, I40E_VSI_MAIN
, uplink_seid
, 0);
9693 vsi
= i40e_vsi_reinit_setup(pf
->vsi
[pf
->lan_vsi
]);
9695 dev_info(&pf
->pdev
->dev
, "setup of MAIN VSI failed\n");
9696 i40e_fdir_teardown(pf
);
9700 /* force a reset of TC and queue layout configurations */
9701 u8 enabled_tc
= pf
->vsi
[pf
->lan_vsi
]->tc_config
.enabled_tc
;
9703 pf
->vsi
[pf
->lan_vsi
]->tc_config
.enabled_tc
= 0;
9704 pf
->vsi
[pf
->lan_vsi
]->seid
= pf
->main_vsi_seid
;
9705 i40e_vsi_config_tc(pf
->vsi
[pf
->lan_vsi
], enabled_tc
);
9707 i40e_vlan_stripping_disable(pf
->vsi
[pf
->lan_vsi
]);
9709 i40e_fdir_sb_setup(pf
);
9711 /* Setup static PF queue filter control settings */
9712 ret
= i40e_setup_pf_filter_control(pf
);
9714 dev_info(&pf
->pdev
->dev
, "setup_pf_filter_control failed: %d\n",
9716 /* Failure here should not stop continuing other steps */
9719 /* enable RSS in the HW, even for only one queue, as the stack can use
9722 if ((pf
->flags
& I40E_FLAG_RSS_ENABLED
))
9723 i40e_config_rss(pf
);
9725 /* fill in link information and enable LSE reporting */
9726 i40e_update_link_info(&pf
->hw
);
9727 i40e_link_event(pf
);
9729 /* Initialize user-specific link properties */
9730 pf
->fc_autoneg_status
= ((pf
->hw
.phy
.link_info
.an_info
&
9731 I40E_AQ_AN_COMPLETED
) ? true : false);
9739 * i40e_determine_queue_usage - Work out queue distribution
9740 * @pf: board private structure
9742 static void i40e_determine_queue_usage(struct i40e_pf
*pf
)
9746 pf
->num_lan_qps
= 0;
9748 pf
->num_fcoe_qps
= 0;
9751 /* Find the max queues to be put into basic use. We'll always be
9752 * using TC0, whether or not DCB is running, and TC0 will get the
9755 queues_left
= pf
->hw
.func_caps
.num_tx_qp
;
9757 if ((queues_left
== 1) ||
9758 !(pf
->flags
& I40E_FLAG_MSIX_ENABLED
)) {
9759 /* one qp for PF, no queues for anything else */
9761 pf
->rss_size
= pf
->num_lan_qps
= 1;
9763 /* make sure all the fancies are disabled */
9764 pf
->flags
&= ~(I40E_FLAG_RSS_ENABLED
|
9766 I40E_FLAG_FCOE_ENABLED
|
9768 I40E_FLAG_FD_SB_ENABLED
|
9769 I40E_FLAG_FD_ATR_ENABLED
|
9770 I40E_FLAG_DCB_CAPABLE
|
9771 I40E_FLAG_SRIOV_ENABLED
|
9772 I40E_FLAG_VMDQ_ENABLED
);
9773 } else if (!(pf
->flags
& (I40E_FLAG_RSS_ENABLED
|
9774 I40E_FLAG_FD_SB_ENABLED
|
9775 I40E_FLAG_FD_ATR_ENABLED
|
9776 I40E_FLAG_DCB_CAPABLE
))) {
9778 pf
->rss_size
= pf
->num_lan_qps
= 1;
9779 queues_left
-= pf
->num_lan_qps
;
9781 pf
->flags
&= ~(I40E_FLAG_RSS_ENABLED
|
9783 I40E_FLAG_FCOE_ENABLED
|
9785 I40E_FLAG_FD_SB_ENABLED
|
9786 I40E_FLAG_FD_ATR_ENABLED
|
9787 I40E_FLAG_DCB_ENABLED
|
9788 I40E_FLAG_VMDQ_ENABLED
);
9790 /* Not enough queues for all TCs */
9791 if ((pf
->flags
& I40E_FLAG_DCB_CAPABLE
) &&
9792 (queues_left
< I40E_MAX_TRAFFIC_CLASS
)) {
9793 pf
->flags
&= ~I40E_FLAG_DCB_CAPABLE
;
9794 dev_info(&pf
->pdev
->dev
, "not enough queues for DCB. DCB is disabled.\n");
9796 pf
->num_lan_qps
= max_t(int, pf
->rss_size_max
,
9798 pf
->num_lan_qps
= min_t(int, pf
->num_lan_qps
,
9799 pf
->hw
.func_caps
.num_tx_qp
);
9801 queues_left
-= pf
->num_lan_qps
;
9805 if (pf
->flags
& I40E_FLAG_FCOE_ENABLED
) {
9806 if (I40E_DEFAULT_FCOE
<= queues_left
) {
9807 pf
->num_fcoe_qps
= I40E_DEFAULT_FCOE
;
9808 } else if (I40E_MINIMUM_FCOE
<= queues_left
) {
9809 pf
->num_fcoe_qps
= I40E_MINIMUM_FCOE
;
9811 pf
->num_fcoe_qps
= 0;
9812 pf
->flags
&= ~I40E_FLAG_FCOE_ENABLED
;
9813 dev_info(&pf
->pdev
->dev
, "not enough queues for FCoE. FCoE feature will be disabled\n");
9816 queues_left
-= pf
->num_fcoe_qps
;
9820 if (pf
->flags
& I40E_FLAG_FD_SB_ENABLED
) {
9821 if (queues_left
> 1) {
9822 queues_left
-= 1; /* save 1 queue for FD */
9824 pf
->flags
&= ~I40E_FLAG_FD_SB_ENABLED
;
9825 dev_info(&pf
->pdev
->dev
, "not enough queues for Flow Director. Flow Director feature is disabled\n");
9829 if ((pf
->flags
& I40E_FLAG_SRIOV_ENABLED
) &&
9830 pf
->num_vf_qps
&& pf
->num_req_vfs
&& queues_left
) {
9831 pf
->num_req_vfs
= min_t(int, pf
->num_req_vfs
,
9832 (queues_left
/ pf
->num_vf_qps
));
9833 queues_left
-= (pf
->num_req_vfs
* pf
->num_vf_qps
);
9836 if ((pf
->flags
& I40E_FLAG_VMDQ_ENABLED
) &&
9837 pf
->num_vmdq_vsis
&& pf
->num_vmdq_qps
&& queues_left
) {
9838 pf
->num_vmdq_vsis
= min_t(int, pf
->num_vmdq_vsis
,
9839 (queues_left
/ pf
->num_vmdq_qps
));
9840 queues_left
-= (pf
->num_vmdq_vsis
* pf
->num_vmdq_qps
);
9843 pf
->queues_left
= queues_left
;
9844 dev_dbg(&pf
->pdev
->dev
,
9845 "qs_avail=%d FD SB=%d lan_qs=%d lan_tc0=%d vf=%d*%d vmdq=%d*%d, remaining=%d\n",
9846 pf
->hw
.func_caps
.num_tx_qp
,
9847 !!(pf
->flags
& I40E_FLAG_FD_SB_ENABLED
),
9848 pf
->num_lan_qps
, pf
->rss_size
, pf
->num_req_vfs
, pf
->num_vf_qps
,
9849 pf
->num_vmdq_vsis
, pf
->num_vmdq_qps
, queues_left
);
9851 dev_dbg(&pf
->pdev
->dev
, "fcoe queues = %d\n", pf
->num_fcoe_qps
);
9856 * i40e_setup_pf_filter_control - Setup PF static filter control
9857 * @pf: PF to be setup
9859 * i40e_setup_pf_filter_control sets up a PF's initial filter control
9860 * settings. If PE/FCoE are enabled then it will also set the per PF
9861 * based filter sizes required for them. It also enables Flow director,
9862 * ethertype and macvlan type filter settings for the pf.
9864 * Returns 0 on success, negative on failure
9866 static int i40e_setup_pf_filter_control(struct i40e_pf
*pf
)
9868 struct i40e_filter_control_settings
*settings
= &pf
->filter_settings
;
9870 settings
->hash_lut_size
= I40E_HASH_LUT_SIZE_128
;
9872 /* Flow Director is enabled */
9873 if (pf
->flags
& (I40E_FLAG_FD_SB_ENABLED
| I40E_FLAG_FD_ATR_ENABLED
))
9874 settings
->enable_fdir
= true;
9876 /* Ethtype and MACVLAN filters enabled for PF */
9877 settings
->enable_ethtype
= true;
9878 settings
->enable_macvlan
= true;
9880 if (i40e_set_filter_control(&pf
->hw
, settings
))
9886 #define INFO_STRING_LEN 255
9887 static void i40e_print_features(struct i40e_pf
*pf
)
9889 struct i40e_hw
*hw
= &pf
->hw
;
9892 string
= kzalloc(INFO_STRING_LEN
, GFP_KERNEL
);
9894 dev_err(&pf
->pdev
->dev
, "Features string allocation failed\n");
9900 buf
+= sprintf(string
, "Features: PF-id[%d] ", hw
->pf_id
);
9901 #ifdef CONFIG_PCI_IOV
9902 buf
+= sprintf(buf
, "VFs: %d ", pf
->num_req_vfs
);
9904 buf
+= sprintf(buf
, "VSIs: %d QP: %d RX: %s ",
9905 pf
->hw
.func_caps
.num_vsis
,
9906 pf
->vsi
[pf
->lan_vsi
]->num_queue_pairs
,
9907 pf
->flags
& I40E_FLAG_RX_PS_ENABLED
? "PS" : "1BUF");
9909 if (pf
->flags
& I40E_FLAG_RSS_ENABLED
)
9910 buf
+= sprintf(buf
, "RSS ");
9911 if (pf
->flags
& I40E_FLAG_FD_ATR_ENABLED
)
9912 buf
+= sprintf(buf
, "FD_ATR ");
9913 if (pf
->flags
& I40E_FLAG_FD_SB_ENABLED
) {
9914 buf
+= sprintf(buf
, "FD_SB ");
9915 buf
+= sprintf(buf
, "NTUPLE ");
9917 if (pf
->flags
& I40E_FLAG_DCB_CAPABLE
)
9918 buf
+= sprintf(buf
, "DCB ");
9919 #if IS_ENABLED(CONFIG_VXLAN)
9920 buf
+= sprintf(buf
, "VxLAN ");
9922 if (pf
->flags
& I40E_FLAG_PTP
)
9923 buf
+= sprintf(buf
, "PTP ");
9925 if (pf
->flags
& I40E_FLAG_FCOE_ENABLED
)
9926 buf
+= sprintf(buf
, "FCOE ");
9929 BUG_ON(buf
> (string
+ INFO_STRING_LEN
));
9930 dev_info(&pf
->pdev
->dev
, "%s\n", string
);
9935 * i40e_probe - Device initialization routine
9936 * @pdev: PCI device information struct
9937 * @ent: entry in i40e_pci_tbl
9939 * i40e_probe initializes a PF identified by a pci_dev structure.
9940 * The OS initialization, configuring of the PF private structure,
9941 * and a hardware reset occur.
9943 * Returns 0 on success, negative on failure
9945 static int i40e_probe(struct pci_dev
*pdev
, const struct pci_device_id
*ent
)
9947 struct i40e_aq_get_phy_abilities_resp abilities
;
9950 static u16 pfs_found
;
9957 err
= pci_enable_device_mem(pdev
);
9961 /* set up for high or low dma */
9962 err
= dma_set_mask_and_coherent(&pdev
->dev
, DMA_BIT_MASK(64));
9964 err
= dma_set_mask_and_coherent(&pdev
->dev
, DMA_BIT_MASK(32));
9967 "DMA configuration failed: 0x%x\n", err
);
9972 /* set up pci connections */
9973 err
= pci_request_selected_regions(pdev
, pci_select_bars(pdev
,
9974 IORESOURCE_MEM
), i40e_driver_name
);
9976 dev_info(&pdev
->dev
,
9977 "pci_request_selected_regions failed %d\n", err
);
9981 pci_enable_pcie_error_reporting(pdev
);
9982 pci_set_master(pdev
);
9984 /* Now that we have a PCI connection, we need to do the
9985 * low level device setup. This is primarily setting up
9986 * the Admin Queue structures and then querying for the
9987 * device's current profile information.
9989 pf
= kzalloc(sizeof(*pf
), GFP_KERNEL
);
9996 set_bit(__I40E_DOWN
, &pf
->state
);
10001 pf
->ioremap_len
= min_t(int, pci_resource_len(pdev
, 0),
10002 I40E_MAX_CSR_SPACE
);
10004 hw
->hw_addr
= ioremap(pci_resource_start(pdev
, 0), pf
->ioremap_len
);
10005 if (!hw
->hw_addr
) {
10007 dev_info(&pdev
->dev
, "ioremap(0x%04x, 0x%04x) failed: 0x%x\n",
10008 (unsigned int)pci_resource_start(pdev
, 0),
10009 pf
->ioremap_len
, err
);
10012 hw
->vendor_id
= pdev
->vendor
;
10013 hw
->device_id
= pdev
->device
;
10014 pci_read_config_byte(pdev
, PCI_REVISION_ID
, &hw
->revision_id
);
10015 hw
->subsystem_vendor_id
= pdev
->subsystem_vendor
;
10016 hw
->subsystem_device_id
= pdev
->subsystem_device
;
10017 hw
->bus
.device
= PCI_SLOT(pdev
->devfn
);
10018 hw
->bus
.func
= PCI_FUNC(pdev
->devfn
);
10019 pf
->instance
= pfs_found
;
10022 pf
->msg_enable
= pf
->hw
.debug_mask
;
10023 pf
->msg_enable
= debug
;
10026 /* do a special CORER for clearing PXE mode once at init */
10027 if (hw
->revision_id
== 0 &&
10028 (rd32(hw
, I40E_GLLAN_RCTL_0
) & I40E_GLLAN_RCTL_0_PXE_MODE_MASK
)) {
10029 wr32(hw
, I40E_GLGEN_RTRIG
, I40E_GLGEN_RTRIG_CORER_MASK
);
10034 i40e_clear_pxe_mode(hw
);
10037 /* Reset here to make sure all is clean and to define PF 'n' */
10039 err
= i40e_pf_reset(hw
);
10041 dev_info(&pdev
->dev
, "Initial pf_reset failed: %d\n", err
);
10046 hw
->aq
.num_arq_entries
= I40E_AQ_LEN
;
10047 hw
->aq
.num_asq_entries
= I40E_AQ_LEN
;
10048 hw
->aq
.arq_buf_size
= I40E_MAX_AQ_BUF_SIZE
;
10049 hw
->aq
.asq_buf_size
= I40E_MAX_AQ_BUF_SIZE
;
10050 pf
->adminq_work_limit
= I40E_AQ_WORK_LIMIT
;
10052 snprintf(pf
->int_name
, sizeof(pf
->int_name
) - 1,
10054 dev_driver_string(&pf
->pdev
->dev
), dev_name(&pdev
->dev
));
10056 err
= i40e_init_shared_code(hw
);
10058 dev_warn(&pdev
->dev
, "unidentified MAC or BLANK NVM: %d\n",
10063 /* set up a default setting for link flow control */
10064 pf
->hw
.fc
.requested_mode
= I40E_FC_NONE
;
10066 err
= i40e_init_adminq(hw
);
10067 dev_info(&pdev
->dev
, "%s\n", i40e_fw_version_str(hw
));
10069 /* provide additional fw info, like api and ver */
10070 dev_info(&pdev
->dev
, "fw_version:%d.%d.%05d\n",
10071 hw
->aq
.fw_maj_ver
, hw
->aq
.fw_min_ver
, hw
->aq
.fw_build
);
10072 dev_info(&pdev
->dev
, "fw api version:%d.%d\n",
10073 hw
->aq
.api_maj_ver
, hw
->aq
.api_min_ver
);
10076 dev_info(&pdev
->dev
,
10077 "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");
10081 if (hw
->aq
.api_maj_ver
== I40E_FW_API_VERSION_MAJOR
&&
10082 hw
->aq
.api_min_ver
> I40E_FW_API_VERSION_MINOR
)
10083 dev_info(&pdev
->dev
,
10084 "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");
10085 else if (hw
->aq
.api_maj_ver
< I40E_FW_API_VERSION_MAJOR
||
10086 hw
->aq
.api_min_ver
< (I40E_FW_API_VERSION_MINOR
- 1))
10087 dev_info(&pdev
->dev
,
10088 "The driver for the device detected an older version of the NVM image than expected. Please update the NVM image.\n");
10090 i40e_verify_eeprom(pf
);
10092 /* Rev 0 hardware was never productized */
10093 if (hw
->revision_id
< 1)
10094 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");
10096 i40e_clear_pxe_mode(hw
);
10097 err
= i40e_get_capabilities(pf
);
10099 goto err_adminq_setup
;
10101 err
= i40e_sw_init(pf
);
10103 dev_info(&pdev
->dev
, "sw_init failed: %d\n", err
);
10107 err
= i40e_init_lan_hmc(hw
, hw
->func_caps
.num_tx_qp
,
10108 hw
->func_caps
.num_rx_qp
,
10109 pf
->fcoe_hmc_cntx_num
, pf
->fcoe_hmc_filt_num
);
10111 dev_info(&pdev
->dev
, "init_lan_hmc failed: %d\n", err
);
10112 goto err_init_lan_hmc
;
10115 err
= i40e_configure_lan_hmc(hw
, I40E_HMC_MODEL_DIRECT_ONLY
);
10117 dev_info(&pdev
->dev
, "configure_lan_hmc failed: %d\n", err
);
10119 goto err_configure_lan_hmc
;
10122 /* Disable LLDP for NICs that have firmware versions lower than v4.3.
10123 * Ignore error return codes because if it was already disabled via
10124 * hardware settings this will fail
10126 if (((pf
->hw
.aq
.fw_maj_ver
== 4) && (pf
->hw
.aq
.fw_min_ver
< 3)) ||
10127 (pf
->hw
.aq
.fw_maj_ver
< 4)) {
10128 dev_info(&pdev
->dev
, "Stopping firmware LLDP agent.\n");
10129 i40e_aq_stop_lldp(hw
, true, NULL
);
10132 i40e_get_mac_addr(hw
, hw
->mac
.addr
);
10133 if (!is_valid_ether_addr(hw
->mac
.addr
)) {
10134 dev_info(&pdev
->dev
, "invalid MAC address %pM\n", hw
->mac
.addr
);
10138 dev_info(&pdev
->dev
, "MAC address: %pM\n", hw
->mac
.addr
);
10139 ether_addr_copy(hw
->mac
.perm_addr
, hw
->mac
.addr
);
10140 i40e_get_port_mac_addr(hw
, hw
->mac
.port_addr
);
10141 if (is_valid_ether_addr(hw
->mac
.port_addr
))
10142 pf
->flags
|= I40E_FLAG_PORT_ID_VALID
;
10144 err
= i40e_get_san_mac_addr(hw
, hw
->mac
.san_addr
);
10146 dev_info(&pdev
->dev
,
10147 "(non-fatal) SAN MAC retrieval failed: %d\n", err
);
10148 if (!is_valid_ether_addr(hw
->mac
.san_addr
)) {
10149 dev_warn(&pdev
->dev
, "invalid SAN MAC address %pM, falling back to LAN MAC\n",
10151 ether_addr_copy(hw
->mac
.san_addr
, hw
->mac
.addr
);
10153 dev_info(&pf
->pdev
->dev
, "SAN MAC: %pM\n", hw
->mac
.san_addr
);
10154 #endif /* I40E_FCOE */
10156 pci_set_drvdata(pdev
, pf
);
10157 pci_save_state(pdev
);
10158 #ifdef CONFIG_I40E_DCB
10159 err
= i40e_init_pf_dcb(pf
);
10161 dev_info(&pdev
->dev
, "DCB init failed %d, disabled\n", err
);
10162 pf
->flags
&= ~I40E_FLAG_DCB_CAPABLE
;
10163 /* Continue without DCB enabled */
10165 #endif /* CONFIG_I40E_DCB */
10167 /* set up periodic task facility */
10168 setup_timer(&pf
->service_timer
, i40e_service_timer
, (unsigned long)pf
);
10169 pf
->service_timer_period
= HZ
;
10171 INIT_WORK(&pf
->service_task
, i40e_service_task
);
10172 clear_bit(__I40E_SERVICE_SCHED
, &pf
->state
);
10173 pf
->flags
|= I40E_FLAG_NEED_LINK_UPDATE
;
10175 /* NVM bit on means WoL disabled for the port */
10176 i40e_read_nvm_word(hw
, I40E_SR_NVM_WAKE_ON_LAN
, &wol_nvm_bits
);
10177 if ((1 << hw
->port
) & wol_nvm_bits
|| hw
->partition_id
!= 1)
10178 pf
->wol_en
= false;
10181 device_set_wakeup_enable(&pf
->pdev
->dev
, pf
->wol_en
);
10183 /* set up the main switch operations */
10184 i40e_determine_queue_usage(pf
);
10185 err
= i40e_init_interrupt_scheme(pf
);
10187 goto err_switch_setup
;
10189 /* The number of VSIs reported by the FW is the minimum guaranteed
10190 * to us; HW supports far more and we share the remaining pool with
10191 * the other PFs. We allocate space for more than the guarantee with
10192 * the understanding that we might not get them all later.
10194 if (pf
->hw
.func_caps
.num_vsis
< I40E_MIN_VSI_ALLOC
)
10195 pf
->num_alloc_vsi
= I40E_MIN_VSI_ALLOC
;
10197 pf
->num_alloc_vsi
= pf
->hw
.func_caps
.num_vsis
;
10199 /* Set up the *vsi struct and our local tracking of the MAIN PF vsi. */
10200 len
= sizeof(struct i40e_vsi
*) * pf
->num_alloc_vsi
;
10201 pf
->vsi
= kzalloc(len
, GFP_KERNEL
);
10204 goto err_switch_setup
;
10207 #ifdef CONFIG_PCI_IOV
10208 /* prep for VF support */
10209 if ((pf
->flags
& I40E_FLAG_SRIOV_ENABLED
) &&
10210 (pf
->flags
& I40E_FLAG_MSIX_ENABLED
) &&
10211 !test_bit(__I40E_BAD_EEPROM
, &pf
->state
)) {
10212 if (pci_num_vf(pdev
))
10213 pf
->flags
|= I40E_FLAG_VEB_MODE_ENABLED
;
10216 err
= i40e_setup_pf_switch(pf
, false);
10218 dev_info(&pdev
->dev
, "setup_pf_switch failed: %d\n", err
);
10221 /* if FDIR VSI was set up, start it now */
10222 for (i
= 0; i
< pf
->num_alloc_vsi
; i
++) {
10223 if (pf
->vsi
[i
] && pf
->vsi
[i
]->type
== I40E_VSI_FDIR
) {
10224 i40e_vsi_open(pf
->vsi
[i
]);
10229 /* driver is only interested in link up/down and module qualification
10230 * reports from firmware
10232 err
= i40e_aq_set_phy_int_mask(&pf
->hw
,
10233 I40E_AQ_EVENT_LINK_UPDOWN
|
10234 I40E_AQ_EVENT_MODULE_QUAL_FAIL
, NULL
);
10236 dev_info(&pf
->pdev
->dev
, "set phy mask fail, err %s aq_err %s\n",
10237 i40e_stat_str(&pf
->hw
, err
),
10238 i40e_aq_str(&pf
->hw
, pf
->hw
.aq
.asq_last_status
));
10240 if (((pf
->hw
.aq
.fw_maj_ver
== 4) && (pf
->hw
.aq
.fw_min_ver
< 33)) ||
10241 (pf
->hw
.aq
.fw_maj_ver
< 4)) {
10243 err
= i40e_aq_set_link_restart_an(&pf
->hw
, true, NULL
);
10245 dev_info(&pf
->pdev
->dev
, "link restart failed, err %s aq_err %s\n",
10246 i40e_stat_str(&pf
->hw
, err
),
10247 i40e_aq_str(&pf
->hw
,
10248 pf
->hw
.aq
.asq_last_status
));
10250 /* The main driver is (mostly) up and happy. We need to set this state
10251 * before setting up the misc vector or we get a race and the vector
10252 * ends up disabled forever.
10254 clear_bit(__I40E_DOWN
, &pf
->state
);
10256 /* In case of MSIX we are going to setup the misc vector right here
10257 * to handle admin queue events etc. In case of legacy and MSI
10258 * the misc functionality and queue processing is combined in
10259 * the same vector and that gets setup at open.
10261 if (pf
->flags
& I40E_FLAG_MSIX_ENABLED
) {
10262 err
= i40e_setup_misc_vector(pf
);
10264 dev_info(&pdev
->dev
,
10265 "setup of misc vector failed: %d\n", err
);
10270 #ifdef CONFIG_PCI_IOV
10271 /* prep for VF support */
10272 if ((pf
->flags
& I40E_FLAG_SRIOV_ENABLED
) &&
10273 (pf
->flags
& I40E_FLAG_MSIX_ENABLED
) &&
10274 !test_bit(__I40E_BAD_EEPROM
, &pf
->state
)) {
10277 /* disable link interrupts for VFs */
10278 val
= rd32(hw
, I40E_PFGEN_PORTMDIO_NUM
);
10279 val
&= ~I40E_PFGEN_PORTMDIO_NUM_VFLINK_STAT_ENA_MASK
;
10280 wr32(hw
, I40E_PFGEN_PORTMDIO_NUM
, val
);
10283 if (pci_num_vf(pdev
)) {
10284 dev_info(&pdev
->dev
,
10285 "Active VFs found, allocating resources.\n");
10286 err
= i40e_alloc_vfs(pf
, pci_num_vf(pdev
));
10288 dev_info(&pdev
->dev
,
10289 "Error %d allocating resources for existing VFs\n",
10293 #endif /* CONFIG_PCI_IOV */
10297 i40e_dbg_pf_init(pf
);
10299 /* tell the firmware that we're starting */
10300 i40e_send_version(pf
);
10302 /* since everything's happy, start the service_task timer */
10303 mod_timer(&pf
->service_timer
,
10304 round_jiffies(jiffies
+ pf
->service_timer_period
));
10307 /* create FCoE interface */
10308 i40e_fcoe_vsi_setup(pf
);
10311 #define PCI_SPEED_SIZE 8
10312 #define PCI_WIDTH_SIZE 8
10313 /* Devices on the IOSF bus do not have this information
10314 * and will report PCI Gen 1 x 1 by default so don't bother
10317 if (!(pf
->flags
& I40E_FLAG_NO_PCI_LINK_CHECK
)) {
10318 char speed
[PCI_SPEED_SIZE
] = "Unknown";
10319 char width
[PCI_WIDTH_SIZE
] = "Unknown";
10321 /* Get the negotiated link width and speed from PCI config
10324 pcie_capability_read_word(pf
->pdev
, PCI_EXP_LNKSTA
,
10327 i40e_set_pci_config_data(hw
, link_status
);
10329 switch (hw
->bus
.speed
) {
10330 case i40e_bus_speed_8000
:
10331 strncpy(speed
, "8.0", PCI_SPEED_SIZE
); break;
10332 case i40e_bus_speed_5000
:
10333 strncpy(speed
, "5.0", PCI_SPEED_SIZE
); break;
10334 case i40e_bus_speed_2500
:
10335 strncpy(speed
, "2.5", PCI_SPEED_SIZE
); break;
10339 switch (hw
->bus
.width
) {
10340 case i40e_bus_width_pcie_x8
:
10341 strncpy(width
, "8", PCI_WIDTH_SIZE
); break;
10342 case i40e_bus_width_pcie_x4
:
10343 strncpy(width
, "4", PCI_WIDTH_SIZE
); break;
10344 case i40e_bus_width_pcie_x2
:
10345 strncpy(width
, "2", PCI_WIDTH_SIZE
); break;
10346 case i40e_bus_width_pcie_x1
:
10347 strncpy(width
, "1", PCI_WIDTH_SIZE
); break;
10352 dev_info(&pdev
->dev
, "PCI-Express: Speed %sGT/s Width x%s\n",
10355 if (hw
->bus
.width
< i40e_bus_width_pcie_x8
||
10356 hw
->bus
.speed
< i40e_bus_speed_8000
) {
10357 dev_warn(&pdev
->dev
, "PCI-Express bandwidth available for this device may be insufficient for optimal performance.\n");
10358 dev_warn(&pdev
->dev
, "Please move the device to a different PCI-e link with more lanes and/or higher transfer rate.\n");
10362 /* get the requested speeds from the fw */
10363 err
= i40e_aq_get_phy_capabilities(hw
, false, false, &abilities
, NULL
);
10365 dev_dbg(&pf
->pdev
->dev
, "get requested speeds ret = %s last_status = %s\n",
10366 i40e_stat_str(&pf
->hw
, err
),
10367 i40e_aq_str(&pf
->hw
, pf
->hw
.aq
.asq_last_status
));
10368 pf
->hw
.phy
.link_info
.requested_speeds
= abilities
.link_speed
;
10370 /* get the supported phy types from the fw */
10371 err
= i40e_aq_get_phy_capabilities(hw
, false, true, &abilities
, NULL
);
10373 dev_dbg(&pf
->pdev
->dev
, "get supported phy types ret = %s last_status = %s\n",
10374 i40e_stat_str(&pf
->hw
, err
),
10375 i40e_aq_str(&pf
->hw
, pf
->hw
.aq
.asq_last_status
));
10376 pf
->hw
.phy
.phy_types
= le32_to_cpu(abilities
.phy_type
);
10378 /* print a string summarizing features */
10379 i40e_print_features(pf
);
10383 /* Unwind what we've done if something failed in the setup */
10385 set_bit(__I40E_DOWN
, &pf
->state
);
10386 i40e_clear_interrupt_scheme(pf
);
10389 i40e_reset_interrupt_capability(pf
);
10390 del_timer_sync(&pf
->service_timer
);
10392 err_configure_lan_hmc
:
10393 (void)i40e_shutdown_lan_hmc(hw
);
10395 kfree(pf
->qp_pile
);
10398 (void)i40e_shutdown_adminq(hw
);
10400 iounmap(hw
->hw_addr
);
10404 pci_disable_pcie_error_reporting(pdev
);
10405 pci_release_selected_regions(pdev
,
10406 pci_select_bars(pdev
, IORESOURCE_MEM
));
10409 pci_disable_device(pdev
);
10414 * i40e_remove - Device removal routine
10415 * @pdev: PCI device information struct
10417 * i40e_remove is called by the PCI subsystem to alert the driver
10418 * that is should release a PCI device. This could be caused by a
10419 * Hot-Plug event, or because the driver is going to be removed from
10422 static void i40e_remove(struct pci_dev
*pdev
)
10424 struct i40e_pf
*pf
= pci_get_drvdata(pdev
);
10425 i40e_status ret_code
;
10428 i40e_dbg_pf_exit(pf
);
10432 /* no more scheduling of any task */
10433 set_bit(__I40E_DOWN
, &pf
->state
);
10434 del_timer_sync(&pf
->service_timer
);
10435 cancel_work_sync(&pf
->service_task
);
10436 i40e_fdir_teardown(pf
);
10438 if (pf
->flags
& I40E_FLAG_SRIOV_ENABLED
) {
10440 pf
->flags
&= ~I40E_FLAG_SRIOV_ENABLED
;
10443 i40e_fdir_teardown(pf
);
10445 /* If there is a switch structure or any orphans, remove them.
10446 * This will leave only the PF's VSI remaining.
10448 for (i
= 0; i
< I40E_MAX_VEB
; i
++) {
10452 if (pf
->veb
[i
]->uplink_seid
== pf
->mac_seid
||
10453 pf
->veb
[i
]->uplink_seid
== 0)
10454 i40e_switch_branch_release(pf
->veb
[i
]);
10457 /* Now we can shutdown the PF's VSI, just before we kill
10460 if (pf
->vsi
[pf
->lan_vsi
])
10461 i40e_vsi_release(pf
->vsi
[pf
->lan_vsi
]);
10463 /* shutdown and destroy the HMC */
10464 if (pf
->hw
.hmc
.hmc_obj
) {
10465 ret_code
= i40e_shutdown_lan_hmc(&pf
->hw
);
10467 dev_warn(&pdev
->dev
,
10468 "Failed to destroy the HMC resources: %d\n",
10472 /* shutdown the adminq */
10473 ret_code
= i40e_shutdown_adminq(&pf
->hw
);
10475 dev_warn(&pdev
->dev
,
10476 "Failed to destroy the Admin Queue resources: %d\n",
10479 /* Clear all dynamic memory lists of rings, q_vectors, and VSIs */
10480 i40e_clear_interrupt_scheme(pf
);
10481 for (i
= 0; i
< pf
->num_alloc_vsi
; i
++) {
10483 i40e_vsi_clear_rings(pf
->vsi
[i
]);
10484 i40e_vsi_clear(pf
->vsi
[i
]);
10489 for (i
= 0; i
< I40E_MAX_VEB
; i
++) {
10494 kfree(pf
->qp_pile
);
10497 iounmap(pf
->hw
.hw_addr
);
10499 pci_release_selected_regions(pdev
,
10500 pci_select_bars(pdev
, IORESOURCE_MEM
));
10502 pci_disable_pcie_error_reporting(pdev
);
10503 pci_disable_device(pdev
);
10507 * i40e_pci_error_detected - warning that something funky happened in PCI land
10508 * @pdev: PCI device information struct
10510 * Called to warn that something happened and the error handling steps
10511 * are in progress. Allows the driver to quiesce things, be ready for
10514 static pci_ers_result_t
i40e_pci_error_detected(struct pci_dev
*pdev
,
10515 enum pci_channel_state error
)
10517 struct i40e_pf
*pf
= pci_get_drvdata(pdev
);
10519 dev_info(&pdev
->dev
, "%s: error %d\n", __func__
, error
);
10521 /* shutdown all operations */
10522 if (!test_bit(__I40E_SUSPENDED
, &pf
->state
)) {
10524 i40e_prep_for_reset(pf
);
10528 /* Request a slot reset */
10529 return PCI_ERS_RESULT_NEED_RESET
;
10533 * i40e_pci_error_slot_reset - a PCI slot reset just happened
10534 * @pdev: PCI device information struct
10536 * Called to find if the driver can work with the device now that
10537 * the pci slot has been reset. If a basic connection seems good
10538 * (registers are readable and have sane content) then return a
10539 * happy little PCI_ERS_RESULT_xxx.
10541 static pci_ers_result_t
i40e_pci_error_slot_reset(struct pci_dev
*pdev
)
10543 struct i40e_pf
*pf
= pci_get_drvdata(pdev
);
10544 pci_ers_result_t result
;
10548 dev_dbg(&pdev
->dev
, "%s\n", __func__
);
10549 if (pci_enable_device_mem(pdev
)) {
10550 dev_info(&pdev
->dev
,
10551 "Cannot re-enable PCI device after reset.\n");
10552 result
= PCI_ERS_RESULT_DISCONNECT
;
10554 pci_set_master(pdev
);
10555 pci_restore_state(pdev
);
10556 pci_save_state(pdev
);
10557 pci_wake_from_d3(pdev
, false);
10559 reg
= rd32(&pf
->hw
, I40E_GLGEN_RTRIG
);
10561 result
= PCI_ERS_RESULT_RECOVERED
;
10563 result
= PCI_ERS_RESULT_DISCONNECT
;
10566 err
= pci_cleanup_aer_uncorrect_error_status(pdev
);
10568 dev_info(&pdev
->dev
,
10569 "pci_cleanup_aer_uncorrect_error_status failed 0x%0x\n",
10571 /* non-fatal, continue */
10578 * i40e_pci_error_resume - restart operations after PCI error recovery
10579 * @pdev: PCI device information struct
10581 * Called to allow the driver to bring things back up after PCI error
10582 * and/or reset recovery has finished.
10584 static void i40e_pci_error_resume(struct pci_dev
*pdev
)
10586 struct i40e_pf
*pf
= pci_get_drvdata(pdev
);
10588 dev_dbg(&pdev
->dev
, "%s\n", __func__
);
10589 if (test_bit(__I40E_SUSPENDED
, &pf
->state
))
10593 i40e_handle_reset_warning(pf
);
10598 * i40e_shutdown - PCI callback for shutting down
10599 * @pdev: PCI device information struct
10601 static void i40e_shutdown(struct pci_dev
*pdev
)
10603 struct i40e_pf
*pf
= pci_get_drvdata(pdev
);
10604 struct i40e_hw
*hw
= &pf
->hw
;
10606 set_bit(__I40E_SUSPENDED
, &pf
->state
);
10607 set_bit(__I40E_DOWN
, &pf
->state
);
10609 i40e_prep_for_reset(pf
);
10612 wr32(hw
, I40E_PFPM_APM
, (pf
->wol_en
? I40E_PFPM_APM_APME_MASK
: 0));
10613 wr32(hw
, I40E_PFPM_WUFC
, (pf
->wol_en
? I40E_PFPM_WUFC_MAG_MASK
: 0));
10615 del_timer_sync(&pf
->service_timer
);
10616 cancel_work_sync(&pf
->service_task
);
10617 i40e_fdir_teardown(pf
);
10620 i40e_prep_for_reset(pf
);
10623 wr32(hw
, I40E_PFPM_APM
,
10624 (pf
->wol_en
? I40E_PFPM_APM_APME_MASK
: 0));
10625 wr32(hw
, I40E_PFPM_WUFC
,
10626 (pf
->wol_en
? I40E_PFPM_WUFC_MAG_MASK
: 0));
10628 i40e_clear_interrupt_scheme(pf
);
10630 if (system_state
== SYSTEM_POWER_OFF
) {
10631 pci_wake_from_d3(pdev
, pf
->wol_en
);
10632 pci_set_power_state(pdev
, PCI_D3hot
);
10638 * i40e_suspend - PCI callback for moving to D3
10639 * @pdev: PCI device information struct
10641 static int i40e_suspend(struct pci_dev
*pdev
, pm_message_t state
)
10643 struct i40e_pf
*pf
= pci_get_drvdata(pdev
);
10644 struct i40e_hw
*hw
= &pf
->hw
;
10646 set_bit(__I40E_SUSPENDED
, &pf
->state
);
10647 set_bit(__I40E_DOWN
, &pf
->state
);
10650 i40e_prep_for_reset(pf
);
10653 wr32(hw
, I40E_PFPM_APM
, (pf
->wol_en
? I40E_PFPM_APM_APME_MASK
: 0));
10654 wr32(hw
, I40E_PFPM_WUFC
, (pf
->wol_en
? I40E_PFPM_WUFC_MAG_MASK
: 0));
10656 pci_wake_from_d3(pdev
, pf
->wol_en
);
10657 pci_set_power_state(pdev
, PCI_D3hot
);
10663 * i40e_resume - PCI callback for waking up from D3
10664 * @pdev: PCI device information struct
10666 static int i40e_resume(struct pci_dev
*pdev
)
10668 struct i40e_pf
*pf
= pci_get_drvdata(pdev
);
10671 pci_set_power_state(pdev
, PCI_D0
);
10672 pci_restore_state(pdev
);
10673 /* pci_restore_state() clears dev->state_saves, so
10674 * call pci_save_state() again to restore it.
10676 pci_save_state(pdev
);
10678 err
= pci_enable_device_mem(pdev
);
10680 dev_err(&pdev
->dev
, "Cannot enable PCI device from suspend\n");
10683 pci_set_master(pdev
);
10685 /* no wakeup events while running */
10686 pci_wake_from_d3(pdev
, false);
10688 /* handling the reset will rebuild the device state */
10689 if (test_and_clear_bit(__I40E_SUSPENDED
, &pf
->state
)) {
10690 clear_bit(__I40E_DOWN
, &pf
->state
);
10692 i40e_reset_and_rebuild(pf
, false);
10700 static const struct pci_error_handlers i40e_err_handler
= {
10701 .error_detected
= i40e_pci_error_detected
,
10702 .slot_reset
= i40e_pci_error_slot_reset
,
10703 .resume
= i40e_pci_error_resume
,
10706 static struct pci_driver i40e_driver
= {
10707 .name
= i40e_driver_name
,
10708 .id_table
= i40e_pci_tbl
,
10709 .probe
= i40e_probe
,
10710 .remove
= i40e_remove
,
10712 .suspend
= i40e_suspend
,
10713 .resume
= i40e_resume
,
10715 .shutdown
= i40e_shutdown
,
10716 .err_handler
= &i40e_err_handler
,
10717 .sriov_configure
= i40e_pci_sriov_configure
,
10721 * i40e_init_module - Driver registration routine
10723 * i40e_init_module is the first routine called when the driver is
10724 * loaded. All it does is register with the PCI subsystem.
10726 static int __init
i40e_init_module(void)
10728 pr_info("%s: %s - version %s\n", i40e_driver_name
,
10729 i40e_driver_string
, i40e_driver_version_str
);
10730 pr_info("%s: %s\n", i40e_driver_name
, i40e_copyright
);
10733 return pci_register_driver(&i40e_driver
);
10735 module_init(i40e_init_module
);
10738 * i40e_exit_module - Driver exit cleanup routine
10740 * i40e_exit_module is called just before the driver is removed
10743 static void __exit
i40e_exit_module(void)
10745 pci_unregister_driver(&i40e_driver
);
10748 module_exit(i40e_exit_module
);