1 /*******************************************************************************
3 * Intel Ethernet Controller XL710 Family Linux Driver
4 * Copyright(c) 2013 - 2015 Intel Corporation.
6 * This program is free software; you can redistribute it and/or modify it
7 * under the terms and conditions of the GNU General Public License,
8 * version 2, as published by the Free Software Foundation.
10 * This program is distributed in the hope it will be useful, but WITHOUT
11 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
12 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
15 * You should have received a copy of the GNU General Public License along
16 * with this program. If not, see <http://www.gnu.org/licenses/>.
18 * The full GNU General Public License is included in this distribution in
19 * the file called "COPYING".
21 * Contact Information:
22 * e1000-devel Mailing List <e1000-devel@lists.sourceforge.net>
23 * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
25 ******************************************************************************/
29 #include "i40e_diag.h"
30 #ifdef CONFIG_I40E_VXLAN
31 #include <net/vxlan.h>
34 const char i40e_driver_name
[] = "i40e";
35 static const char i40e_driver_string
[] =
36 "Intel(R) Ethernet Connection XL710 Network Driver";
40 #define DRV_VERSION_MAJOR 1
41 #define DRV_VERSION_MINOR 3
42 #define DRV_VERSION_BUILD 21
43 #define DRV_VERSION __stringify(DRV_VERSION_MAJOR) "." \
44 __stringify(DRV_VERSION_MINOR) "." \
45 __stringify(DRV_VERSION_BUILD) DRV_KERN
46 const char i40e_driver_version_str
[] = DRV_VERSION
;
47 static const char i40e_copyright
[] = "Copyright (c) 2013 - 2014 Intel Corporation.";
49 /* a bit of forward declarations */
50 static void i40e_vsi_reinit_locked(struct i40e_vsi
*vsi
);
51 static void i40e_handle_reset_warning(struct i40e_pf
*pf
);
52 static int i40e_add_vsi(struct i40e_vsi
*vsi
);
53 static int i40e_add_veb(struct i40e_veb
*veb
, struct i40e_vsi
*vsi
);
54 static int i40e_setup_pf_switch(struct i40e_pf
*pf
, bool reinit
);
55 static int i40e_setup_misc_vector(struct i40e_pf
*pf
);
56 static void i40e_determine_queue_usage(struct i40e_pf
*pf
);
57 static int i40e_setup_pf_filter_control(struct i40e_pf
*pf
);
58 static void i40e_fdir_sb_setup(struct i40e_pf
*pf
);
59 static int i40e_veb_get_bw_info(struct i40e_veb
*veb
);
61 /* i40e_pci_tbl - PCI Device ID Table
63 * Last entry must be all 0s
65 * { Vendor ID, Device ID, SubVendor ID, SubDevice ID,
66 * Class, Class Mask, private data (not used) }
68 static const struct pci_device_id i40e_pci_tbl
[] = {
69 {PCI_VDEVICE(INTEL
, I40E_DEV_ID_SFP_XL710
), 0},
70 {PCI_VDEVICE(INTEL
, I40E_DEV_ID_QEMU
), 0},
71 {PCI_VDEVICE(INTEL
, I40E_DEV_ID_KX_A
), 0},
72 {PCI_VDEVICE(INTEL
, I40E_DEV_ID_KX_B
), 0},
73 {PCI_VDEVICE(INTEL
, I40E_DEV_ID_KX_C
), 0},
74 {PCI_VDEVICE(INTEL
, I40E_DEV_ID_QSFP_A
), 0},
75 {PCI_VDEVICE(INTEL
, I40E_DEV_ID_QSFP_B
), 0},
76 {PCI_VDEVICE(INTEL
, I40E_DEV_ID_QSFP_C
), 0},
77 {PCI_VDEVICE(INTEL
, I40E_DEV_ID_10G_BASE_T
), 0},
78 {PCI_VDEVICE(INTEL
, I40E_DEV_ID_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
;
220 /* 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
];
846 i40e_stat_update32(hw
, I40E_GLPRT_PXOFFRXC(hw
->port
, i
),
847 pf
->stat_offsets_loaded
,
848 &osd
->priority_xoff_rx
[i
],
849 &nsd
->priority_xoff_rx
[i
]);
851 /* No new PFC xoff rx */
852 if (!(nsd
->priority_xoff_rx
[i
] - prio_xoff
))
854 /* Get the TC for given priority */
855 tc
= dcb_cfg
->etscfg
.prioritytable
[i
];
861 * i40e_update_vsi_stats - Update the vsi statistics counters.
862 * @vsi: the VSI to be updated
864 * There are a few instances where we store the same stat in a
865 * couple of different structs. This is partly because we have
866 * the netdev stats that need to be filled out, which is slightly
867 * different from the "eth_stats" defined by the chip and used in
868 * VF communications. We sort it out here.
870 static void i40e_update_vsi_stats(struct i40e_vsi
*vsi
)
872 struct i40e_pf
*pf
= vsi
->back
;
873 struct rtnl_link_stats64
*ons
;
874 struct rtnl_link_stats64
*ns
; /* netdev stats */
875 struct i40e_eth_stats
*oes
;
876 struct i40e_eth_stats
*es
; /* device's eth stats */
877 u32 tx_restart
, tx_busy
;
887 if (test_bit(__I40E_DOWN
, &vsi
->state
) ||
888 test_bit(__I40E_CONFIG_BUSY
, &pf
->state
))
891 ns
= i40e_get_vsi_stats_struct(vsi
);
892 ons
= &vsi
->net_stats_offsets
;
893 es
= &vsi
->eth_stats
;
894 oes
= &vsi
->eth_stats_offsets
;
896 /* Gather up the netdev and vsi stats that the driver collects
897 * on the fly during packet processing
901 tx_restart
= tx_busy
= tx_linearize
= 0;
905 for (q
= 0; q
< vsi
->num_queue_pairs
; q
++) {
907 p
= ACCESS_ONCE(vsi
->tx_rings
[q
]);
910 start
= u64_stats_fetch_begin_irq(&p
->syncp
);
911 packets
= p
->stats
.packets
;
912 bytes
= p
->stats
.bytes
;
913 } while (u64_stats_fetch_retry_irq(&p
->syncp
, start
));
916 tx_restart
+= p
->tx_stats
.restart_queue
;
917 tx_busy
+= p
->tx_stats
.tx_busy
;
918 tx_linearize
+= p
->tx_stats
.tx_linearize
;
920 /* Rx queue is part of the same block as Tx queue */
923 start
= u64_stats_fetch_begin_irq(&p
->syncp
);
924 packets
= p
->stats
.packets
;
925 bytes
= p
->stats
.bytes
;
926 } while (u64_stats_fetch_retry_irq(&p
->syncp
, start
));
929 rx_buf
+= p
->rx_stats
.alloc_buff_failed
;
930 rx_page
+= p
->rx_stats
.alloc_page_failed
;
933 vsi
->tx_restart
= tx_restart
;
934 vsi
->tx_busy
= tx_busy
;
935 vsi
->tx_linearize
= tx_linearize
;
936 vsi
->rx_page_failed
= rx_page
;
937 vsi
->rx_buf_failed
= rx_buf
;
939 ns
->rx_packets
= rx_p
;
941 ns
->tx_packets
= tx_p
;
944 /* update netdev stats from eth stats */
945 i40e_update_eth_stats(vsi
);
946 ons
->tx_errors
= oes
->tx_errors
;
947 ns
->tx_errors
= es
->tx_errors
;
948 ons
->multicast
= oes
->rx_multicast
;
949 ns
->multicast
= es
->rx_multicast
;
950 ons
->rx_dropped
= oes
->rx_discards
;
951 ns
->rx_dropped
= es
->rx_discards
;
952 ons
->tx_dropped
= oes
->tx_discards
;
953 ns
->tx_dropped
= es
->tx_discards
;
955 /* pull in a couple PF stats if this is the main vsi */
956 if (vsi
== pf
->vsi
[pf
->lan_vsi
]) {
957 ns
->rx_crc_errors
= pf
->stats
.crc_errors
;
958 ns
->rx_errors
= pf
->stats
.crc_errors
+ pf
->stats
.illegal_bytes
;
959 ns
->rx_length_errors
= pf
->stats
.rx_length_errors
;
964 * i40e_update_pf_stats - Update the PF statistics counters.
965 * @pf: the PF to be updated
967 static void i40e_update_pf_stats(struct i40e_pf
*pf
)
969 struct i40e_hw_port_stats
*osd
= &pf
->stats_offsets
;
970 struct i40e_hw_port_stats
*nsd
= &pf
->stats
;
971 struct i40e_hw
*hw
= &pf
->hw
;
975 i40e_stat_update48(hw
, I40E_GLPRT_GORCH(hw
->port
),
976 I40E_GLPRT_GORCL(hw
->port
),
977 pf
->stat_offsets_loaded
,
978 &osd
->eth
.rx_bytes
, &nsd
->eth
.rx_bytes
);
979 i40e_stat_update48(hw
, I40E_GLPRT_GOTCH(hw
->port
),
980 I40E_GLPRT_GOTCL(hw
->port
),
981 pf
->stat_offsets_loaded
,
982 &osd
->eth
.tx_bytes
, &nsd
->eth
.tx_bytes
);
983 i40e_stat_update32(hw
, I40E_GLPRT_RDPC(hw
->port
),
984 pf
->stat_offsets_loaded
,
985 &osd
->eth
.rx_discards
,
986 &nsd
->eth
.rx_discards
);
987 i40e_stat_update48(hw
, I40E_GLPRT_UPRCH(hw
->port
),
988 I40E_GLPRT_UPRCL(hw
->port
),
989 pf
->stat_offsets_loaded
,
990 &osd
->eth
.rx_unicast
,
991 &nsd
->eth
.rx_unicast
);
992 i40e_stat_update48(hw
, I40E_GLPRT_MPRCH(hw
->port
),
993 I40E_GLPRT_MPRCL(hw
->port
),
994 pf
->stat_offsets_loaded
,
995 &osd
->eth
.rx_multicast
,
996 &nsd
->eth
.rx_multicast
);
997 i40e_stat_update48(hw
, I40E_GLPRT_BPRCH(hw
->port
),
998 I40E_GLPRT_BPRCL(hw
->port
),
999 pf
->stat_offsets_loaded
,
1000 &osd
->eth
.rx_broadcast
,
1001 &nsd
->eth
.rx_broadcast
);
1002 i40e_stat_update48(hw
, I40E_GLPRT_UPTCH(hw
->port
),
1003 I40E_GLPRT_UPTCL(hw
->port
),
1004 pf
->stat_offsets_loaded
,
1005 &osd
->eth
.tx_unicast
,
1006 &nsd
->eth
.tx_unicast
);
1007 i40e_stat_update48(hw
, I40E_GLPRT_MPTCH(hw
->port
),
1008 I40E_GLPRT_MPTCL(hw
->port
),
1009 pf
->stat_offsets_loaded
,
1010 &osd
->eth
.tx_multicast
,
1011 &nsd
->eth
.tx_multicast
);
1012 i40e_stat_update48(hw
, I40E_GLPRT_BPTCH(hw
->port
),
1013 I40E_GLPRT_BPTCL(hw
->port
),
1014 pf
->stat_offsets_loaded
,
1015 &osd
->eth
.tx_broadcast
,
1016 &nsd
->eth
.tx_broadcast
);
1018 i40e_stat_update32(hw
, I40E_GLPRT_TDOLD(hw
->port
),
1019 pf
->stat_offsets_loaded
,
1020 &osd
->tx_dropped_link_down
,
1021 &nsd
->tx_dropped_link_down
);
1023 i40e_stat_update32(hw
, I40E_GLPRT_CRCERRS(hw
->port
),
1024 pf
->stat_offsets_loaded
,
1025 &osd
->crc_errors
, &nsd
->crc_errors
);
1027 i40e_stat_update32(hw
, I40E_GLPRT_ILLERRC(hw
->port
),
1028 pf
->stat_offsets_loaded
,
1029 &osd
->illegal_bytes
, &nsd
->illegal_bytes
);
1031 i40e_stat_update32(hw
, I40E_GLPRT_MLFC(hw
->port
),
1032 pf
->stat_offsets_loaded
,
1033 &osd
->mac_local_faults
,
1034 &nsd
->mac_local_faults
);
1035 i40e_stat_update32(hw
, I40E_GLPRT_MRFC(hw
->port
),
1036 pf
->stat_offsets_loaded
,
1037 &osd
->mac_remote_faults
,
1038 &nsd
->mac_remote_faults
);
1040 i40e_stat_update32(hw
, I40E_GLPRT_RLEC(hw
->port
),
1041 pf
->stat_offsets_loaded
,
1042 &osd
->rx_length_errors
,
1043 &nsd
->rx_length_errors
);
1045 i40e_stat_update32(hw
, I40E_GLPRT_LXONRXC(hw
->port
),
1046 pf
->stat_offsets_loaded
,
1047 &osd
->link_xon_rx
, &nsd
->link_xon_rx
);
1048 i40e_stat_update32(hw
, I40E_GLPRT_LXONTXC(hw
->port
),
1049 pf
->stat_offsets_loaded
,
1050 &osd
->link_xon_tx
, &nsd
->link_xon_tx
);
1051 i40e_update_prio_xoff_rx(pf
); /* handles I40E_GLPRT_LXOFFRXC */
1052 i40e_stat_update32(hw
, I40E_GLPRT_LXOFFTXC(hw
->port
),
1053 pf
->stat_offsets_loaded
,
1054 &osd
->link_xoff_tx
, &nsd
->link_xoff_tx
);
1056 for (i
= 0; i
< 8; i
++) {
1057 i40e_stat_update32(hw
, I40E_GLPRT_PXONRXC(hw
->port
, i
),
1058 pf
->stat_offsets_loaded
,
1059 &osd
->priority_xon_rx
[i
],
1060 &nsd
->priority_xon_rx
[i
]);
1061 i40e_stat_update32(hw
, I40E_GLPRT_PXONTXC(hw
->port
, i
),
1062 pf
->stat_offsets_loaded
,
1063 &osd
->priority_xon_tx
[i
],
1064 &nsd
->priority_xon_tx
[i
]);
1065 i40e_stat_update32(hw
, I40E_GLPRT_PXOFFTXC(hw
->port
, i
),
1066 pf
->stat_offsets_loaded
,
1067 &osd
->priority_xoff_tx
[i
],
1068 &nsd
->priority_xoff_tx
[i
]);
1069 i40e_stat_update32(hw
,
1070 I40E_GLPRT_RXON2OFFCNT(hw
->port
, i
),
1071 pf
->stat_offsets_loaded
,
1072 &osd
->priority_xon_2_xoff
[i
],
1073 &nsd
->priority_xon_2_xoff
[i
]);
1076 i40e_stat_update48(hw
, I40E_GLPRT_PRC64H(hw
->port
),
1077 I40E_GLPRT_PRC64L(hw
->port
),
1078 pf
->stat_offsets_loaded
,
1079 &osd
->rx_size_64
, &nsd
->rx_size_64
);
1080 i40e_stat_update48(hw
, I40E_GLPRT_PRC127H(hw
->port
),
1081 I40E_GLPRT_PRC127L(hw
->port
),
1082 pf
->stat_offsets_loaded
,
1083 &osd
->rx_size_127
, &nsd
->rx_size_127
);
1084 i40e_stat_update48(hw
, I40E_GLPRT_PRC255H(hw
->port
),
1085 I40E_GLPRT_PRC255L(hw
->port
),
1086 pf
->stat_offsets_loaded
,
1087 &osd
->rx_size_255
, &nsd
->rx_size_255
);
1088 i40e_stat_update48(hw
, I40E_GLPRT_PRC511H(hw
->port
),
1089 I40E_GLPRT_PRC511L(hw
->port
),
1090 pf
->stat_offsets_loaded
,
1091 &osd
->rx_size_511
, &nsd
->rx_size_511
);
1092 i40e_stat_update48(hw
, I40E_GLPRT_PRC1023H(hw
->port
),
1093 I40E_GLPRT_PRC1023L(hw
->port
),
1094 pf
->stat_offsets_loaded
,
1095 &osd
->rx_size_1023
, &nsd
->rx_size_1023
);
1096 i40e_stat_update48(hw
, I40E_GLPRT_PRC1522H(hw
->port
),
1097 I40E_GLPRT_PRC1522L(hw
->port
),
1098 pf
->stat_offsets_loaded
,
1099 &osd
->rx_size_1522
, &nsd
->rx_size_1522
);
1100 i40e_stat_update48(hw
, I40E_GLPRT_PRC9522H(hw
->port
),
1101 I40E_GLPRT_PRC9522L(hw
->port
),
1102 pf
->stat_offsets_loaded
,
1103 &osd
->rx_size_big
, &nsd
->rx_size_big
);
1105 i40e_stat_update48(hw
, I40E_GLPRT_PTC64H(hw
->port
),
1106 I40E_GLPRT_PTC64L(hw
->port
),
1107 pf
->stat_offsets_loaded
,
1108 &osd
->tx_size_64
, &nsd
->tx_size_64
);
1109 i40e_stat_update48(hw
, I40E_GLPRT_PTC127H(hw
->port
),
1110 I40E_GLPRT_PTC127L(hw
->port
),
1111 pf
->stat_offsets_loaded
,
1112 &osd
->tx_size_127
, &nsd
->tx_size_127
);
1113 i40e_stat_update48(hw
, I40E_GLPRT_PTC255H(hw
->port
),
1114 I40E_GLPRT_PTC255L(hw
->port
),
1115 pf
->stat_offsets_loaded
,
1116 &osd
->tx_size_255
, &nsd
->tx_size_255
);
1117 i40e_stat_update48(hw
, I40E_GLPRT_PTC511H(hw
->port
),
1118 I40E_GLPRT_PTC511L(hw
->port
),
1119 pf
->stat_offsets_loaded
,
1120 &osd
->tx_size_511
, &nsd
->tx_size_511
);
1121 i40e_stat_update48(hw
, I40E_GLPRT_PTC1023H(hw
->port
),
1122 I40E_GLPRT_PTC1023L(hw
->port
),
1123 pf
->stat_offsets_loaded
,
1124 &osd
->tx_size_1023
, &nsd
->tx_size_1023
);
1125 i40e_stat_update48(hw
, I40E_GLPRT_PTC1522H(hw
->port
),
1126 I40E_GLPRT_PTC1522L(hw
->port
),
1127 pf
->stat_offsets_loaded
,
1128 &osd
->tx_size_1522
, &nsd
->tx_size_1522
);
1129 i40e_stat_update48(hw
, I40E_GLPRT_PTC9522H(hw
->port
),
1130 I40E_GLPRT_PTC9522L(hw
->port
),
1131 pf
->stat_offsets_loaded
,
1132 &osd
->tx_size_big
, &nsd
->tx_size_big
);
1134 i40e_stat_update32(hw
, I40E_GLPRT_RUC(hw
->port
),
1135 pf
->stat_offsets_loaded
,
1136 &osd
->rx_undersize
, &nsd
->rx_undersize
);
1137 i40e_stat_update32(hw
, I40E_GLPRT_RFC(hw
->port
),
1138 pf
->stat_offsets_loaded
,
1139 &osd
->rx_fragments
, &nsd
->rx_fragments
);
1140 i40e_stat_update32(hw
, I40E_GLPRT_ROC(hw
->port
),
1141 pf
->stat_offsets_loaded
,
1142 &osd
->rx_oversize
, &nsd
->rx_oversize
);
1143 i40e_stat_update32(hw
, I40E_GLPRT_RJC(hw
->port
),
1144 pf
->stat_offsets_loaded
,
1145 &osd
->rx_jabber
, &nsd
->rx_jabber
);
1148 i40e_stat_update32(hw
,
1149 I40E_GLQF_PCNT(I40E_FD_ATR_STAT_IDX(pf
->hw
.pf_id
)),
1150 pf
->stat_offsets_loaded
,
1151 &osd
->fd_atr_match
, &nsd
->fd_atr_match
);
1152 i40e_stat_update32(hw
,
1153 I40E_GLQF_PCNT(I40E_FD_SB_STAT_IDX(pf
->hw
.pf_id
)),
1154 pf
->stat_offsets_loaded
,
1155 &osd
->fd_sb_match
, &nsd
->fd_sb_match
);
1156 i40e_stat_update32(hw
,
1157 I40E_GLQF_PCNT(I40E_FD_ATR_TUNNEL_STAT_IDX(pf
->hw
.pf_id
)),
1158 pf
->stat_offsets_loaded
,
1159 &osd
->fd_atr_tunnel_match
, &nsd
->fd_atr_tunnel_match
);
1161 val
= rd32(hw
, I40E_PRTPM_EEE_STAT
);
1162 nsd
->tx_lpi_status
=
1163 (val
& I40E_PRTPM_EEE_STAT_TX_LPI_STATUS_MASK
) >>
1164 I40E_PRTPM_EEE_STAT_TX_LPI_STATUS_SHIFT
;
1165 nsd
->rx_lpi_status
=
1166 (val
& I40E_PRTPM_EEE_STAT_RX_LPI_STATUS_MASK
) >>
1167 I40E_PRTPM_EEE_STAT_RX_LPI_STATUS_SHIFT
;
1168 i40e_stat_update32(hw
, I40E_PRTPM_TLPIC
,
1169 pf
->stat_offsets_loaded
,
1170 &osd
->tx_lpi_count
, &nsd
->tx_lpi_count
);
1171 i40e_stat_update32(hw
, I40E_PRTPM_RLPIC
,
1172 pf
->stat_offsets_loaded
,
1173 &osd
->rx_lpi_count
, &nsd
->rx_lpi_count
);
1175 if (pf
->flags
& I40E_FLAG_FD_SB_ENABLED
&&
1176 !(pf
->auto_disable_flags
& I40E_FLAG_FD_SB_ENABLED
))
1177 nsd
->fd_sb_status
= true;
1179 nsd
->fd_sb_status
= false;
1181 if (pf
->flags
& I40E_FLAG_FD_ATR_ENABLED
&&
1182 !(pf
->auto_disable_flags
& I40E_FLAG_FD_ATR_ENABLED
))
1183 nsd
->fd_atr_status
= true;
1185 nsd
->fd_atr_status
= false;
1187 pf
->stat_offsets_loaded
= true;
1191 * i40e_update_stats - Update the various statistics counters.
1192 * @vsi: the VSI to be updated
1194 * Update the various stats for this VSI and its related entities.
1196 void i40e_update_stats(struct i40e_vsi
*vsi
)
1198 struct i40e_pf
*pf
= vsi
->back
;
1200 if (vsi
== pf
->vsi
[pf
->lan_vsi
])
1201 i40e_update_pf_stats(pf
);
1203 i40e_update_vsi_stats(vsi
);
1205 i40e_update_fcoe_stats(vsi
);
1210 * i40e_find_filter - Search VSI filter list for specific mac/vlan filter
1211 * @vsi: the VSI to be searched
1212 * @macaddr: the MAC address
1214 * @is_vf: make sure its a VF filter, else doesn't matter
1215 * @is_netdev: make sure its a netdev filter, else doesn't matter
1217 * Returns ptr to the filter object or NULL
1219 static struct i40e_mac_filter
*i40e_find_filter(struct i40e_vsi
*vsi
,
1220 u8
*macaddr
, s16 vlan
,
1221 bool is_vf
, bool is_netdev
)
1223 struct i40e_mac_filter
*f
;
1225 if (!vsi
|| !macaddr
)
1228 list_for_each_entry(f
, &vsi
->mac_filter_list
, list
) {
1229 if ((ether_addr_equal(macaddr
, f
->macaddr
)) &&
1230 (vlan
== f
->vlan
) &&
1231 (!is_vf
|| f
->is_vf
) &&
1232 (!is_netdev
|| f
->is_netdev
))
1239 * i40e_find_mac - Find a mac addr in the macvlan filters list
1240 * @vsi: the VSI to be searched
1241 * @macaddr: the MAC address we are searching for
1242 * @is_vf: make sure its a VF filter, else doesn't matter
1243 * @is_netdev: make sure its a netdev filter, else doesn't matter
1245 * Returns the first filter with the provided MAC address or NULL if
1246 * MAC address was not found
1248 struct i40e_mac_filter
*i40e_find_mac(struct i40e_vsi
*vsi
, u8
*macaddr
,
1249 bool is_vf
, bool is_netdev
)
1251 struct i40e_mac_filter
*f
;
1253 if (!vsi
|| !macaddr
)
1256 list_for_each_entry(f
, &vsi
->mac_filter_list
, list
) {
1257 if ((ether_addr_equal(macaddr
, f
->macaddr
)) &&
1258 (!is_vf
|| f
->is_vf
) &&
1259 (!is_netdev
|| f
->is_netdev
))
1266 * i40e_is_vsi_in_vlan - Check if VSI is in vlan mode
1267 * @vsi: the VSI to be searched
1269 * Returns true if VSI is in vlan mode or false otherwise
1271 bool i40e_is_vsi_in_vlan(struct i40e_vsi
*vsi
)
1273 struct i40e_mac_filter
*f
;
1275 /* Only -1 for all the filters denotes not in vlan mode
1276 * so we have to go through all the list in order to make sure
1278 list_for_each_entry(f
, &vsi
->mac_filter_list
, list
) {
1279 if (f
->vlan
>= 0 || vsi
->info
.pvid
)
1287 * i40e_put_mac_in_vlan - Make macvlan filters from macaddrs and vlans
1288 * @vsi: the VSI to be searched
1289 * @macaddr: the mac address to be filtered
1290 * @is_vf: true if it is a VF
1291 * @is_netdev: true if it is a netdev
1293 * Goes through all the macvlan filters and adds a
1294 * macvlan filter for each unique vlan that already exists
1296 * Returns first filter found on success, else NULL
1298 struct i40e_mac_filter
*i40e_put_mac_in_vlan(struct i40e_vsi
*vsi
, u8
*macaddr
,
1299 bool is_vf
, bool is_netdev
)
1301 struct i40e_mac_filter
*f
;
1303 list_for_each_entry(f
, &vsi
->mac_filter_list
, list
) {
1305 f
->vlan
= le16_to_cpu(vsi
->info
.pvid
);
1306 if (!i40e_find_filter(vsi
, macaddr
, f
->vlan
,
1307 is_vf
, is_netdev
)) {
1308 if (!i40e_add_filter(vsi
, macaddr
, f
->vlan
,
1314 return list_first_entry_or_null(&vsi
->mac_filter_list
,
1315 struct i40e_mac_filter
, list
);
1319 * i40e_rm_default_mac_filter - Remove the default MAC filter set by NVM
1320 * @vsi: the PF Main VSI - inappropriate for any other VSI
1321 * @macaddr: the MAC address
1323 * Some older firmware configurations set up a default promiscuous VLAN
1324 * filter that needs to be removed.
1326 static int i40e_rm_default_mac_filter(struct i40e_vsi
*vsi
, u8
*macaddr
)
1328 struct i40e_aqc_remove_macvlan_element_data element
;
1329 struct i40e_pf
*pf
= vsi
->back
;
1332 /* Only appropriate for the PF main VSI */
1333 if (vsi
->type
!= I40E_VSI_MAIN
)
1336 memset(&element
, 0, sizeof(element
));
1337 ether_addr_copy(element
.mac_addr
, macaddr
);
1338 element
.vlan_tag
= 0;
1339 element
.flags
= I40E_AQC_MACVLAN_DEL_PERFECT_MATCH
|
1340 I40E_AQC_MACVLAN_DEL_IGNORE_VLAN
;
1341 ret
= i40e_aq_remove_macvlan(&pf
->hw
, vsi
->seid
, &element
, 1, NULL
);
1349 * i40e_add_filter - Add a mac/vlan filter to the VSI
1350 * @vsi: the VSI to be searched
1351 * @macaddr: the MAC address
1353 * @is_vf: make sure its a VF filter, else doesn't matter
1354 * @is_netdev: make sure its a netdev filter, else doesn't matter
1356 * Returns ptr to the filter object or NULL when no memory available.
1358 struct i40e_mac_filter
*i40e_add_filter(struct i40e_vsi
*vsi
,
1359 u8
*macaddr
, s16 vlan
,
1360 bool is_vf
, bool is_netdev
)
1362 struct i40e_mac_filter
*f
;
1364 if (!vsi
|| !macaddr
)
1367 f
= i40e_find_filter(vsi
, macaddr
, vlan
, is_vf
, is_netdev
);
1369 f
= kzalloc(sizeof(*f
), GFP_ATOMIC
);
1371 goto add_filter_out
;
1373 ether_addr_copy(f
->macaddr
, macaddr
);
1377 INIT_LIST_HEAD(&f
->list
);
1378 list_add(&f
->list
, &vsi
->mac_filter_list
);
1381 /* increment counter and add a new flag if needed */
1387 } else if (is_netdev
) {
1388 if (!f
->is_netdev
) {
1389 f
->is_netdev
= true;
1396 /* changed tells sync_filters_subtask to
1397 * push the filter down to the firmware
1400 vsi
->flags
|= I40E_VSI_FLAG_FILTER_CHANGED
;
1401 vsi
->back
->flags
|= I40E_FLAG_FILTER_SYNC
;
1409 * i40e_del_filter - Remove a mac/vlan filter from the VSI
1410 * @vsi: the VSI to be searched
1411 * @macaddr: the MAC address
1413 * @is_vf: make sure it's a VF filter, else doesn't matter
1414 * @is_netdev: make sure it's a netdev filter, else doesn't matter
1416 void i40e_del_filter(struct i40e_vsi
*vsi
,
1417 u8
*macaddr
, s16 vlan
,
1418 bool is_vf
, bool is_netdev
)
1420 struct i40e_mac_filter
*f
;
1422 if (!vsi
|| !macaddr
)
1425 f
= i40e_find_filter(vsi
, macaddr
, vlan
, is_vf
, is_netdev
);
1426 if (!f
|| f
->counter
== 0)
1434 } else if (is_netdev
) {
1436 f
->is_netdev
= false;
1440 /* make sure we don't remove a filter in use by VF or netdev */
1442 min_f
+= (f
->is_vf
? 1 : 0);
1443 min_f
+= (f
->is_netdev
? 1 : 0);
1445 if (f
->counter
> min_f
)
1449 /* counter == 0 tells sync_filters_subtask to
1450 * remove the filter from the firmware's list
1452 if (f
->counter
== 0) {
1454 vsi
->flags
|= I40E_VSI_FLAG_FILTER_CHANGED
;
1455 vsi
->back
->flags
|= I40E_FLAG_FILTER_SYNC
;
1460 * i40e_set_mac - NDO callback to set mac address
1461 * @netdev: network interface device structure
1462 * @p: pointer to an address structure
1464 * Returns 0 on success, negative on failure
1467 int i40e_set_mac(struct net_device
*netdev
, void *p
)
1469 static int i40e_set_mac(struct net_device
*netdev
, void *p
)
1472 struct i40e_netdev_priv
*np
= netdev_priv(netdev
);
1473 struct i40e_vsi
*vsi
= np
->vsi
;
1474 struct i40e_pf
*pf
= vsi
->back
;
1475 struct i40e_hw
*hw
= &pf
->hw
;
1476 struct sockaddr
*addr
= p
;
1477 struct i40e_mac_filter
*f
;
1479 if (!is_valid_ether_addr(addr
->sa_data
))
1480 return -EADDRNOTAVAIL
;
1482 if (ether_addr_equal(netdev
->dev_addr
, addr
->sa_data
)) {
1483 netdev_info(netdev
, "already using mac address %pM\n",
1488 if (test_bit(__I40E_DOWN
, &vsi
->back
->state
) ||
1489 test_bit(__I40E_RESET_RECOVERY_PENDING
, &vsi
->back
->state
))
1490 return -EADDRNOTAVAIL
;
1492 if (ether_addr_equal(hw
->mac
.addr
, addr
->sa_data
))
1493 netdev_info(netdev
, "returning to hw mac address %pM\n",
1496 netdev_info(netdev
, "set new mac address %pM\n", addr
->sa_data
);
1498 if (vsi
->type
== I40E_VSI_MAIN
) {
1500 ret
= i40e_aq_mac_address_write(&vsi
->back
->hw
,
1501 I40E_AQC_WRITE_TYPE_LAA_WOL
,
1502 addr
->sa_data
, NULL
);
1505 "Addr change for Main VSI failed: %d\n",
1507 return -EADDRNOTAVAIL
;
1511 if (ether_addr_equal(netdev
->dev_addr
, hw
->mac
.addr
)) {
1512 struct i40e_aqc_remove_macvlan_element_data element
;
1514 memset(&element
, 0, sizeof(element
));
1515 ether_addr_copy(element
.mac_addr
, netdev
->dev_addr
);
1516 element
.flags
= I40E_AQC_MACVLAN_DEL_PERFECT_MATCH
;
1517 i40e_aq_remove_macvlan(&pf
->hw
, vsi
->seid
, &element
, 1, NULL
);
1519 i40e_del_filter(vsi
, netdev
->dev_addr
, I40E_VLAN_ANY
,
1523 if (ether_addr_equal(addr
->sa_data
, hw
->mac
.addr
)) {
1524 struct i40e_aqc_add_macvlan_element_data element
;
1526 memset(&element
, 0, sizeof(element
));
1527 ether_addr_copy(element
.mac_addr
, hw
->mac
.addr
);
1528 element
.flags
= cpu_to_le16(I40E_AQC_MACVLAN_ADD_PERFECT_MATCH
);
1529 i40e_aq_add_macvlan(&pf
->hw
, vsi
->seid
, &element
, 1, NULL
);
1531 f
= i40e_add_filter(vsi
, addr
->sa_data
, I40E_VLAN_ANY
,
1537 i40e_sync_vsi_filters(vsi
, false);
1538 ether_addr_copy(netdev
->dev_addr
, addr
->sa_data
);
1544 * i40e_vsi_setup_queue_map - Setup a VSI queue map based on enabled_tc
1545 * @vsi: the VSI being setup
1546 * @ctxt: VSI context structure
1547 * @enabled_tc: Enabled TCs bitmap
1548 * @is_add: True if called before Add VSI
1550 * Setup VSI queue mapping for enabled traffic classes.
1553 void i40e_vsi_setup_queue_map(struct i40e_vsi
*vsi
,
1554 struct i40e_vsi_context
*ctxt
,
1558 static void i40e_vsi_setup_queue_map(struct i40e_vsi
*vsi
,
1559 struct i40e_vsi_context
*ctxt
,
1564 struct i40e_pf
*pf
= vsi
->back
;
1574 sections
= I40E_AQ_VSI_PROP_QUEUE_MAP_VALID
;
1577 if (enabled_tc
&& (vsi
->back
->flags
& I40E_FLAG_DCB_ENABLED
)) {
1578 /* Find numtc from enabled TC bitmap */
1579 for (i
= 0; i
< I40E_MAX_TRAFFIC_CLASS
; i
++) {
1580 if (enabled_tc
& BIT_ULL(i
)) /* TC is enabled */
1584 dev_warn(&pf
->pdev
->dev
, "DCB is enabled but no TC enabled, forcing TC0\n");
1588 /* At least TC0 is enabled in case of non-DCB case */
1592 vsi
->tc_config
.numtc
= numtc
;
1593 vsi
->tc_config
.enabled_tc
= enabled_tc
? enabled_tc
: 1;
1594 /* Number of queues per enabled TC */
1595 /* In MFP case we can have a much lower count of MSIx
1596 * vectors available and so we need to lower the used
1599 if (pf
->flags
& I40E_FLAG_MSIX_ENABLED
)
1600 qcount
= min_t(int, vsi
->alloc_queue_pairs
, pf
->num_lan_msix
);
1602 qcount
= vsi
->alloc_queue_pairs
;
1603 num_tc_qps
= qcount
/ numtc
;
1604 num_tc_qps
= min_t(int, num_tc_qps
, i40e_pf_get_max_q_per_tc(pf
));
1606 /* Setup queue offset/count for all TCs for given VSI */
1607 for (i
= 0; i
< I40E_MAX_TRAFFIC_CLASS
; i
++) {
1608 /* See if the given TC is enabled for the given VSI */
1609 if (vsi
->tc_config
.enabled_tc
& BIT_ULL(i
)) {
1613 switch (vsi
->type
) {
1615 qcount
= min_t(int, pf
->rss_size
, num_tc_qps
);
1619 qcount
= num_tc_qps
;
1623 case I40E_VSI_SRIOV
:
1624 case I40E_VSI_VMDQ2
:
1626 qcount
= num_tc_qps
;
1630 vsi
->tc_config
.tc_info
[i
].qoffset
= offset
;
1631 vsi
->tc_config
.tc_info
[i
].qcount
= qcount
;
1633 /* find the next higher power-of-2 of num queue pairs */
1636 while (num_qps
&& (BIT_ULL(pow
) < qcount
)) {
1641 vsi
->tc_config
.tc_info
[i
].netdev_tc
= netdev_tc
++;
1643 (offset
<< I40E_AQ_VSI_TC_QUE_OFFSET_SHIFT
) |
1644 (pow
<< I40E_AQ_VSI_TC_QUE_NUMBER_SHIFT
);
1648 /* TC is not enabled so set the offset to
1649 * default queue and allocate one queue
1652 vsi
->tc_config
.tc_info
[i
].qoffset
= 0;
1653 vsi
->tc_config
.tc_info
[i
].qcount
= 1;
1654 vsi
->tc_config
.tc_info
[i
].netdev_tc
= 0;
1658 ctxt
->info
.tc_mapping
[i
] = cpu_to_le16(qmap
);
1661 /* Set actual Tx/Rx queue pairs */
1662 vsi
->num_queue_pairs
= offset
;
1663 if ((vsi
->type
== I40E_VSI_MAIN
) && (numtc
== 1)) {
1664 if (vsi
->req_queue_pairs
> 0)
1665 vsi
->num_queue_pairs
= vsi
->req_queue_pairs
;
1666 else if (pf
->flags
& I40E_FLAG_MSIX_ENABLED
)
1667 vsi
->num_queue_pairs
= pf
->num_lan_msix
;
1670 /* Scheduler section valid can only be set for ADD VSI */
1672 sections
|= I40E_AQ_VSI_PROP_SCHED_VALID
;
1674 ctxt
->info
.up_enable_bits
= enabled_tc
;
1676 if (vsi
->type
== I40E_VSI_SRIOV
) {
1677 ctxt
->info
.mapping_flags
|=
1678 cpu_to_le16(I40E_AQ_VSI_QUE_MAP_NONCONTIG
);
1679 for (i
= 0; i
< vsi
->num_queue_pairs
; i
++)
1680 ctxt
->info
.queue_mapping
[i
] =
1681 cpu_to_le16(vsi
->base_queue
+ i
);
1683 ctxt
->info
.mapping_flags
|=
1684 cpu_to_le16(I40E_AQ_VSI_QUE_MAP_CONTIG
);
1685 ctxt
->info
.queue_mapping
[0] = cpu_to_le16(vsi
->base_queue
);
1687 ctxt
->info
.valid_sections
|= cpu_to_le16(sections
);
1691 * i40e_set_rx_mode - NDO callback to set the netdev filters
1692 * @netdev: network interface device structure
1695 void i40e_set_rx_mode(struct net_device
*netdev
)
1697 static void i40e_set_rx_mode(struct net_device
*netdev
)
1700 struct i40e_netdev_priv
*np
= netdev_priv(netdev
);
1701 struct i40e_mac_filter
*f
, *ftmp
;
1702 struct i40e_vsi
*vsi
= np
->vsi
;
1703 struct netdev_hw_addr
*uca
;
1704 struct netdev_hw_addr
*mca
;
1705 struct netdev_hw_addr
*ha
;
1707 /* add addr if not already in the filter list */
1708 netdev_for_each_uc_addr(uca
, netdev
) {
1709 if (!i40e_find_mac(vsi
, uca
->addr
, false, true)) {
1710 if (i40e_is_vsi_in_vlan(vsi
))
1711 i40e_put_mac_in_vlan(vsi
, uca
->addr
,
1714 i40e_add_filter(vsi
, uca
->addr
, I40E_VLAN_ANY
,
1719 netdev_for_each_mc_addr(mca
, netdev
) {
1720 if (!i40e_find_mac(vsi
, mca
->addr
, false, true)) {
1721 if (i40e_is_vsi_in_vlan(vsi
))
1722 i40e_put_mac_in_vlan(vsi
, mca
->addr
,
1725 i40e_add_filter(vsi
, mca
->addr
, I40E_VLAN_ANY
,
1730 /* remove filter if not in netdev list */
1731 list_for_each_entry_safe(f
, ftmp
, &vsi
->mac_filter_list
, list
) {
1736 netdev_for_each_mc_addr(mca
, netdev
)
1737 if (ether_addr_equal(mca
->addr
, f
->macaddr
))
1738 goto bottom_of_search_loop
;
1740 netdev_for_each_uc_addr(uca
, netdev
)
1741 if (ether_addr_equal(uca
->addr
, f
->macaddr
))
1742 goto bottom_of_search_loop
;
1744 for_each_dev_addr(netdev
, ha
)
1745 if (ether_addr_equal(ha
->addr
, f
->macaddr
))
1746 goto bottom_of_search_loop
;
1748 /* f->macaddr wasn't found in uc, mc, or ha list so delete it */
1749 i40e_del_filter(vsi
, f
->macaddr
, I40E_VLAN_ANY
, false, true);
1751 bottom_of_search_loop
:
1755 /* check for other flag changes */
1756 if (vsi
->current_netdev_flags
!= vsi
->netdev
->flags
) {
1757 vsi
->flags
|= I40E_VSI_FLAG_FILTER_CHANGED
;
1758 vsi
->back
->flags
|= I40E_FLAG_FILTER_SYNC
;
1763 * i40e_sync_vsi_filters - Update the VSI filter list to the HW
1764 * @vsi: ptr to the VSI
1765 * @grab_rtnl: whether RTNL needs to be grabbed
1767 * Push any outstanding VSI filter changes through the AdminQ.
1769 * Returns 0 or error value
1771 int i40e_sync_vsi_filters(struct i40e_vsi
*vsi
, bool grab_rtnl
)
1773 struct i40e_mac_filter
*f
, *ftmp
;
1774 bool promisc_forced_on
= false;
1775 bool add_happened
= false;
1776 int filter_list_len
= 0;
1777 u32 changed_flags
= 0;
1778 i40e_status ret
= 0;
1785 /* empty array typed pointers, kcalloc later */
1786 struct i40e_aqc_add_macvlan_element_data
*add_list
;
1787 struct i40e_aqc_remove_macvlan_element_data
*del_list
;
1789 while (test_and_set_bit(__I40E_CONFIG_BUSY
, &vsi
->state
))
1790 usleep_range(1000, 2000);
1794 changed_flags
= vsi
->current_netdev_flags
^ vsi
->netdev
->flags
;
1795 vsi
->current_netdev_flags
= vsi
->netdev
->flags
;
1798 if (vsi
->flags
& I40E_VSI_FLAG_FILTER_CHANGED
) {
1799 vsi
->flags
&= ~I40E_VSI_FLAG_FILTER_CHANGED
;
1801 filter_list_len
= pf
->hw
.aq
.asq_buf_size
/
1802 sizeof(struct i40e_aqc_remove_macvlan_element_data
);
1803 del_list
= kcalloc(filter_list_len
,
1804 sizeof(struct i40e_aqc_remove_macvlan_element_data
),
1809 list_for_each_entry_safe(f
, ftmp
, &vsi
->mac_filter_list
, list
) {
1813 if (f
->counter
!= 0)
1818 /* add to delete list */
1819 ether_addr_copy(del_list
[num_del
].mac_addr
, f
->macaddr
);
1820 del_list
[num_del
].vlan_tag
=
1821 cpu_to_le16((u16
)(f
->vlan
==
1822 I40E_VLAN_ANY
? 0 : f
->vlan
));
1824 cmd_flags
|= I40E_AQC_MACVLAN_DEL_PERFECT_MATCH
;
1825 del_list
[num_del
].flags
= cmd_flags
;
1828 /* unlink from filter list */
1832 /* flush a full buffer */
1833 if (num_del
== filter_list_len
) {
1834 ret
= i40e_aq_remove_macvlan(&pf
->hw
,
1835 vsi
->seid
, del_list
, num_del
,
1837 aq_err
= pf
->hw
.aq
.asq_last_status
;
1839 memset(del_list
, 0, sizeof(*del_list
));
1841 if (ret
&& aq_err
!= I40E_AQ_RC_ENOENT
)
1842 dev_info(&pf
->pdev
->dev
,
1843 "ignoring delete macvlan error, err %s, aq_err %s while flushing a full buffer\n",
1844 i40e_stat_str(&pf
->hw
, ret
),
1845 i40e_aq_str(&pf
->hw
, aq_err
));
1849 ret
= i40e_aq_remove_macvlan(&pf
->hw
, vsi
->seid
,
1850 del_list
, num_del
, NULL
);
1851 aq_err
= pf
->hw
.aq
.asq_last_status
;
1854 if (ret
&& aq_err
!= I40E_AQ_RC_ENOENT
)
1855 dev_info(&pf
->pdev
->dev
,
1856 "ignoring delete macvlan error, err %s aq_err %s\n",
1857 i40e_stat_str(&pf
->hw
, ret
),
1858 i40e_aq_str(&pf
->hw
, aq_err
));
1864 /* do all the adds now */
1865 filter_list_len
= pf
->hw
.aq
.asq_buf_size
/
1866 sizeof(struct i40e_aqc_add_macvlan_element_data
),
1867 add_list
= kcalloc(filter_list_len
,
1868 sizeof(struct i40e_aqc_add_macvlan_element_data
),
1873 list_for_each_entry_safe(f
, ftmp
, &vsi
->mac_filter_list
, list
) {
1877 if (f
->counter
== 0)
1880 add_happened
= true;
1883 /* add to add array */
1884 ether_addr_copy(add_list
[num_add
].mac_addr
, f
->macaddr
);
1885 add_list
[num_add
].vlan_tag
=
1887 (u16
)(f
->vlan
== I40E_VLAN_ANY
? 0 : f
->vlan
));
1888 add_list
[num_add
].queue_number
= 0;
1890 cmd_flags
|= I40E_AQC_MACVLAN_ADD_PERFECT_MATCH
;
1891 add_list
[num_add
].flags
= cpu_to_le16(cmd_flags
);
1894 /* flush a full buffer */
1895 if (num_add
== filter_list_len
) {
1896 ret
= i40e_aq_add_macvlan(&pf
->hw
, vsi
->seid
,
1899 aq_err
= pf
->hw
.aq
.asq_last_status
;
1904 memset(add_list
, 0, sizeof(*add_list
));
1908 ret
= i40e_aq_add_macvlan(&pf
->hw
, vsi
->seid
,
1909 add_list
, num_add
, NULL
);
1910 aq_err
= pf
->hw
.aq
.asq_last_status
;
1916 if (add_happened
&& ret
&& aq_err
!= I40E_AQ_RC_EINVAL
) {
1917 dev_info(&pf
->pdev
->dev
,
1918 "add filter failed, err %s aq_err %s\n",
1919 i40e_stat_str(&pf
->hw
, ret
),
1920 i40e_aq_str(&pf
->hw
, aq_err
));
1921 if ((pf
->hw
.aq
.asq_last_status
== I40E_AQ_RC_ENOSPC
) &&
1922 !test_bit(__I40E_FILTER_OVERFLOW_PROMISC
,
1924 promisc_forced_on
= true;
1925 set_bit(__I40E_FILTER_OVERFLOW_PROMISC
,
1927 dev_info(&pf
->pdev
->dev
, "promiscuous mode forced on\n");
1932 /* check for changes in promiscuous modes */
1933 if (changed_flags
& IFF_ALLMULTI
) {
1934 bool cur_multipromisc
;
1935 cur_multipromisc
= !!(vsi
->current_netdev_flags
& IFF_ALLMULTI
);
1936 ret
= i40e_aq_set_vsi_multicast_promiscuous(&vsi
->back
->hw
,
1941 dev_info(&pf
->pdev
->dev
,
1942 "set multi promisc failed, err %s aq_err %s\n",
1943 i40e_stat_str(&pf
->hw
, ret
),
1944 i40e_aq_str(&pf
->hw
,
1945 pf
->hw
.aq
.asq_last_status
));
1947 if ((changed_flags
& IFF_PROMISC
) || promisc_forced_on
) {
1949 cur_promisc
= (!!(vsi
->current_netdev_flags
& IFF_PROMISC
) ||
1950 test_bit(__I40E_FILTER_OVERFLOW_PROMISC
,
1952 if (vsi
->type
== I40E_VSI_MAIN
&& pf
->lan_veb
!= I40E_NO_VEB
) {
1953 /* set defport ON for Main VSI instead of true promisc
1954 * this way we will get all unicast/multicast and VLAN
1955 * promisc behavior but will not get VF or VMDq traffic
1956 * replicated on the Main VSI.
1958 if (pf
->cur_promisc
!= cur_promisc
) {
1959 pf
->cur_promisc
= cur_promisc
;
1961 i40e_do_reset_safe(pf
,
1962 BIT(__I40E_PF_RESET_REQUESTED
));
1965 BIT(__I40E_PF_RESET_REQUESTED
));
1968 ret
= i40e_aq_set_vsi_unicast_promiscuous(
1973 dev_info(&pf
->pdev
->dev
,
1974 "set unicast promisc failed, err %d, aq_err %d\n",
1975 ret
, pf
->hw
.aq
.asq_last_status
);
1976 ret
= i40e_aq_set_vsi_multicast_promiscuous(
1981 dev_info(&pf
->pdev
->dev
,
1982 "set multicast promisc failed, err %d, aq_err %d\n",
1983 ret
, pf
->hw
.aq
.asq_last_status
);
1985 ret
= i40e_aq_set_vsi_broadcast(&vsi
->back
->hw
,
1989 dev_info(&pf
->pdev
->dev
,
1990 "set brdcast promisc failed, err %s, aq_err %s\n",
1991 i40e_stat_str(&pf
->hw
, ret
),
1992 i40e_aq_str(&pf
->hw
,
1993 pf
->hw
.aq
.asq_last_status
));
1996 clear_bit(__I40E_CONFIG_BUSY
, &vsi
->state
);
2001 * i40e_sync_filters_subtask - Sync the VSI filter list with HW
2002 * @pf: board private structure
2004 static void i40e_sync_filters_subtask(struct i40e_pf
*pf
)
2008 if (!pf
|| !(pf
->flags
& I40E_FLAG_FILTER_SYNC
))
2010 pf
->flags
&= ~I40E_FLAG_FILTER_SYNC
;
2012 for (v
= 0; v
< pf
->num_alloc_vsi
; v
++) {
2014 (pf
->vsi
[v
]->flags
& I40E_VSI_FLAG_FILTER_CHANGED
))
2015 i40e_sync_vsi_filters(pf
->vsi
[v
], true);
2020 * i40e_change_mtu - NDO callback to change the Maximum Transfer Unit
2021 * @netdev: network interface device structure
2022 * @new_mtu: new value for maximum frame size
2024 * Returns 0 on success, negative on failure
2026 static int i40e_change_mtu(struct net_device
*netdev
, int new_mtu
)
2028 struct i40e_netdev_priv
*np
= netdev_priv(netdev
);
2029 int max_frame
= new_mtu
+ ETH_HLEN
+ ETH_FCS_LEN
+ VLAN_HLEN
;
2030 struct i40e_vsi
*vsi
= np
->vsi
;
2032 /* MTU < 68 is an error and causes problems on some kernels */
2033 if ((new_mtu
< 68) || (max_frame
> I40E_MAX_RXBUFFER
))
2036 netdev_info(netdev
, "changing MTU from %d to %d\n",
2037 netdev
->mtu
, new_mtu
);
2038 netdev
->mtu
= new_mtu
;
2039 if (netif_running(netdev
))
2040 i40e_vsi_reinit_locked(vsi
);
2046 * i40e_ioctl - Access the hwtstamp interface
2047 * @netdev: network interface device structure
2048 * @ifr: interface request data
2049 * @cmd: ioctl command
2051 int i40e_ioctl(struct net_device
*netdev
, struct ifreq
*ifr
, int cmd
)
2053 struct i40e_netdev_priv
*np
= netdev_priv(netdev
);
2054 struct i40e_pf
*pf
= np
->vsi
->back
;
2058 return i40e_ptp_get_ts_config(pf
, ifr
);
2060 return i40e_ptp_set_ts_config(pf
, ifr
);
2067 * i40e_vlan_stripping_enable - Turn on vlan stripping for the VSI
2068 * @vsi: the vsi being adjusted
2070 void i40e_vlan_stripping_enable(struct i40e_vsi
*vsi
)
2072 struct i40e_vsi_context ctxt
;
2075 if ((vsi
->info
.valid_sections
&
2076 cpu_to_le16(I40E_AQ_VSI_PROP_VLAN_VALID
)) &&
2077 ((vsi
->info
.port_vlan_flags
& I40E_AQ_VSI_PVLAN_MODE_MASK
) == 0))
2078 return; /* already enabled */
2080 vsi
->info
.valid_sections
= cpu_to_le16(I40E_AQ_VSI_PROP_VLAN_VALID
);
2081 vsi
->info
.port_vlan_flags
= I40E_AQ_VSI_PVLAN_MODE_ALL
|
2082 I40E_AQ_VSI_PVLAN_EMOD_STR_BOTH
;
2084 ctxt
.seid
= vsi
->seid
;
2085 ctxt
.info
= vsi
->info
;
2086 ret
= i40e_aq_update_vsi_params(&vsi
->back
->hw
, &ctxt
, NULL
);
2088 dev_info(&vsi
->back
->pdev
->dev
,
2089 "update vlan stripping failed, err %s aq_err %s\n",
2090 i40e_stat_str(&vsi
->back
->hw
, ret
),
2091 i40e_aq_str(&vsi
->back
->hw
,
2092 vsi
->back
->hw
.aq
.asq_last_status
));
2097 * i40e_vlan_stripping_disable - Turn off vlan stripping for the VSI
2098 * @vsi: the vsi being adjusted
2100 void i40e_vlan_stripping_disable(struct i40e_vsi
*vsi
)
2102 struct i40e_vsi_context ctxt
;
2105 if ((vsi
->info
.valid_sections
&
2106 cpu_to_le16(I40E_AQ_VSI_PROP_VLAN_VALID
)) &&
2107 ((vsi
->info
.port_vlan_flags
& I40E_AQ_VSI_PVLAN_EMOD_MASK
) ==
2108 I40E_AQ_VSI_PVLAN_EMOD_MASK
))
2109 return; /* already disabled */
2111 vsi
->info
.valid_sections
= cpu_to_le16(I40E_AQ_VSI_PROP_VLAN_VALID
);
2112 vsi
->info
.port_vlan_flags
= I40E_AQ_VSI_PVLAN_MODE_ALL
|
2113 I40E_AQ_VSI_PVLAN_EMOD_NOTHING
;
2115 ctxt
.seid
= vsi
->seid
;
2116 ctxt
.info
= vsi
->info
;
2117 ret
= i40e_aq_update_vsi_params(&vsi
->back
->hw
, &ctxt
, NULL
);
2119 dev_info(&vsi
->back
->pdev
->dev
,
2120 "update vlan stripping failed, err %s aq_err %s\n",
2121 i40e_stat_str(&vsi
->back
->hw
, ret
),
2122 i40e_aq_str(&vsi
->back
->hw
,
2123 vsi
->back
->hw
.aq
.asq_last_status
));
2128 * i40e_vlan_rx_register - Setup or shutdown vlan offload
2129 * @netdev: network interface to be adjusted
2130 * @features: netdev features to test if VLAN offload is enabled or not
2132 static void i40e_vlan_rx_register(struct net_device
*netdev
, u32 features
)
2134 struct i40e_netdev_priv
*np
= netdev_priv(netdev
);
2135 struct i40e_vsi
*vsi
= np
->vsi
;
2137 if (features
& NETIF_F_HW_VLAN_CTAG_RX
)
2138 i40e_vlan_stripping_enable(vsi
);
2140 i40e_vlan_stripping_disable(vsi
);
2144 * i40e_vsi_add_vlan - Add vsi membership for given vlan
2145 * @vsi: the vsi being configured
2146 * @vid: vlan id to be added (0 = untagged only , -1 = any)
2148 int i40e_vsi_add_vlan(struct i40e_vsi
*vsi
, s16 vid
)
2150 struct i40e_mac_filter
*f
, *add_f
;
2151 bool is_netdev
, is_vf
;
2153 is_vf
= (vsi
->type
== I40E_VSI_SRIOV
);
2154 is_netdev
= !!(vsi
->netdev
);
2157 add_f
= i40e_add_filter(vsi
, vsi
->netdev
->dev_addr
, vid
,
2160 dev_info(&vsi
->back
->pdev
->dev
,
2161 "Could not add vlan filter %d for %pM\n",
2162 vid
, vsi
->netdev
->dev_addr
);
2167 list_for_each_entry(f
, &vsi
->mac_filter_list
, list
) {
2168 add_f
= i40e_add_filter(vsi
, f
->macaddr
, vid
, is_vf
, is_netdev
);
2170 dev_info(&vsi
->back
->pdev
->dev
,
2171 "Could not add vlan filter %d for %pM\n",
2177 /* Now if we add a vlan tag, make sure to check if it is the first
2178 * tag (i.e. a "tag" -1 does exist) and if so replace the -1 "tag"
2179 * with 0, so we now accept untagged and specified tagged traffic
2180 * (and not any taged and untagged)
2183 if (is_netdev
&& i40e_find_filter(vsi
, vsi
->netdev
->dev_addr
,
2185 is_vf
, is_netdev
)) {
2186 i40e_del_filter(vsi
, vsi
->netdev
->dev_addr
,
2187 I40E_VLAN_ANY
, is_vf
, is_netdev
);
2188 add_f
= i40e_add_filter(vsi
, vsi
->netdev
->dev_addr
, 0,
2191 dev_info(&vsi
->back
->pdev
->dev
,
2192 "Could not add filter 0 for %pM\n",
2193 vsi
->netdev
->dev_addr
);
2199 /* Do not assume that I40E_VLAN_ANY should be reset to VLAN 0 */
2200 if (vid
> 0 && !vsi
->info
.pvid
) {
2201 list_for_each_entry(f
, &vsi
->mac_filter_list
, list
) {
2202 if (i40e_find_filter(vsi
, f
->macaddr
, I40E_VLAN_ANY
,
2203 is_vf
, is_netdev
)) {
2204 i40e_del_filter(vsi
, f
->macaddr
, I40E_VLAN_ANY
,
2206 add_f
= i40e_add_filter(vsi
, f
->macaddr
,
2207 0, is_vf
, is_netdev
);
2209 dev_info(&vsi
->back
->pdev
->dev
,
2210 "Could not add filter 0 for %pM\n",
2218 if (test_bit(__I40E_DOWN
, &vsi
->back
->state
) ||
2219 test_bit(__I40E_RESET_RECOVERY_PENDING
, &vsi
->back
->state
))
2222 return i40e_sync_vsi_filters(vsi
, false);
2226 * i40e_vsi_kill_vlan - Remove vsi membership for given vlan
2227 * @vsi: the vsi being configured
2228 * @vid: vlan id to be removed (0 = untagged only , -1 = any)
2230 * Return: 0 on success or negative otherwise
2232 int i40e_vsi_kill_vlan(struct i40e_vsi
*vsi
, s16 vid
)
2234 struct net_device
*netdev
= vsi
->netdev
;
2235 struct i40e_mac_filter
*f
, *add_f
;
2236 bool is_vf
, is_netdev
;
2237 int filter_count
= 0;
2239 is_vf
= (vsi
->type
== I40E_VSI_SRIOV
);
2240 is_netdev
= !!(netdev
);
2243 i40e_del_filter(vsi
, netdev
->dev_addr
, vid
, is_vf
, is_netdev
);
2245 list_for_each_entry(f
, &vsi
->mac_filter_list
, list
)
2246 i40e_del_filter(vsi
, f
->macaddr
, vid
, is_vf
, is_netdev
);
2248 /* go through all the filters for this VSI and if there is only
2249 * vid == 0 it means there are no other filters, so vid 0 must
2250 * be replaced with -1. This signifies that we should from now
2251 * on accept any traffic (with any tag present, or untagged)
2253 list_for_each_entry(f
, &vsi
->mac_filter_list
, list
) {
2256 ether_addr_equal(netdev
->dev_addr
, f
->macaddr
))
2264 if (!filter_count
&& is_netdev
) {
2265 i40e_del_filter(vsi
, netdev
->dev_addr
, 0, is_vf
, is_netdev
);
2266 f
= i40e_add_filter(vsi
, netdev
->dev_addr
, I40E_VLAN_ANY
,
2269 dev_info(&vsi
->back
->pdev
->dev
,
2270 "Could not add filter %d for %pM\n",
2271 I40E_VLAN_ANY
, netdev
->dev_addr
);
2276 if (!filter_count
) {
2277 list_for_each_entry(f
, &vsi
->mac_filter_list
, list
) {
2278 i40e_del_filter(vsi
, f
->macaddr
, 0, is_vf
, is_netdev
);
2279 add_f
= i40e_add_filter(vsi
, f
->macaddr
, I40E_VLAN_ANY
,
2282 dev_info(&vsi
->back
->pdev
->dev
,
2283 "Could not add filter %d for %pM\n",
2284 I40E_VLAN_ANY
, f
->macaddr
);
2290 if (test_bit(__I40E_DOWN
, &vsi
->back
->state
) ||
2291 test_bit(__I40E_RESET_RECOVERY_PENDING
, &vsi
->back
->state
))
2294 return i40e_sync_vsi_filters(vsi
, false);
2298 * i40e_vlan_rx_add_vid - Add a vlan id filter to HW offload
2299 * @netdev: network interface to be adjusted
2300 * @vid: vlan id to be added
2302 * net_device_ops implementation for adding vlan ids
2305 int i40e_vlan_rx_add_vid(struct net_device
*netdev
,
2306 __always_unused __be16 proto
, u16 vid
)
2308 static int i40e_vlan_rx_add_vid(struct net_device
*netdev
,
2309 __always_unused __be16 proto
, u16 vid
)
2312 struct i40e_netdev_priv
*np
= netdev_priv(netdev
);
2313 struct i40e_vsi
*vsi
= np
->vsi
;
2319 netdev_info(netdev
, "adding %pM vid=%d\n", netdev
->dev_addr
, vid
);
2321 /* If the network stack called us with vid = 0 then
2322 * it is asking to receive priority tagged packets with
2323 * vlan id 0. Our HW receives them by default when configured
2324 * to receive untagged packets so there is no need to add an
2325 * extra filter for vlan 0 tagged packets.
2328 ret
= i40e_vsi_add_vlan(vsi
, vid
);
2330 if (!ret
&& (vid
< VLAN_N_VID
))
2331 set_bit(vid
, vsi
->active_vlans
);
2337 * i40e_vlan_rx_kill_vid - Remove a vlan id filter from HW offload
2338 * @netdev: network interface to be adjusted
2339 * @vid: vlan id to be removed
2341 * net_device_ops implementation for removing vlan ids
2344 int i40e_vlan_rx_kill_vid(struct net_device
*netdev
,
2345 __always_unused __be16 proto
, u16 vid
)
2347 static int i40e_vlan_rx_kill_vid(struct net_device
*netdev
,
2348 __always_unused __be16 proto
, u16 vid
)
2351 struct i40e_netdev_priv
*np
= netdev_priv(netdev
);
2352 struct i40e_vsi
*vsi
= np
->vsi
;
2354 netdev_info(netdev
, "removing %pM vid=%d\n", netdev
->dev_addr
, vid
);
2356 /* return code is ignored as there is nothing a user
2357 * can do about failure to remove and a log message was
2358 * already printed from the other function
2360 i40e_vsi_kill_vlan(vsi
, vid
);
2362 clear_bit(vid
, vsi
->active_vlans
);
2368 * i40e_restore_vlan - Reinstate vlans when vsi/netdev comes back up
2369 * @vsi: the vsi being brought back up
2371 static void i40e_restore_vlan(struct i40e_vsi
*vsi
)
2378 i40e_vlan_rx_register(vsi
->netdev
, vsi
->netdev
->features
);
2380 for_each_set_bit(vid
, vsi
->active_vlans
, VLAN_N_VID
)
2381 i40e_vlan_rx_add_vid(vsi
->netdev
, htons(ETH_P_8021Q
),
2386 * i40e_vsi_add_pvid - Add pvid for the VSI
2387 * @vsi: the vsi being adjusted
2388 * @vid: the vlan id to set as a PVID
2390 int i40e_vsi_add_pvid(struct i40e_vsi
*vsi
, u16 vid
)
2392 struct i40e_vsi_context ctxt
;
2395 vsi
->info
.valid_sections
= cpu_to_le16(I40E_AQ_VSI_PROP_VLAN_VALID
);
2396 vsi
->info
.pvid
= cpu_to_le16(vid
);
2397 vsi
->info
.port_vlan_flags
= I40E_AQ_VSI_PVLAN_MODE_TAGGED
|
2398 I40E_AQ_VSI_PVLAN_INSERT_PVID
|
2399 I40E_AQ_VSI_PVLAN_EMOD_STR
;
2401 ctxt
.seid
= vsi
->seid
;
2402 ctxt
.info
= vsi
->info
;
2403 ret
= i40e_aq_update_vsi_params(&vsi
->back
->hw
, &ctxt
, NULL
);
2405 dev_info(&vsi
->back
->pdev
->dev
,
2406 "add pvid failed, err %s aq_err %s\n",
2407 i40e_stat_str(&vsi
->back
->hw
, ret
),
2408 i40e_aq_str(&vsi
->back
->hw
,
2409 vsi
->back
->hw
.aq
.asq_last_status
));
2417 * i40e_vsi_remove_pvid - Remove the pvid from the VSI
2418 * @vsi: the vsi being adjusted
2420 * Just use the vlan_rx_register() service to put it back to normal
2422 void i40e_vsi_remove_pvid(struct i40e_vsi
*vsi
)
2424 i40e_vlan_stripping_disable(vsi
);
2430 * i40e_vsi_setup_tx_resources - Allocate VSI Tx queue resources
2431 * @vsi: ptr to the VSI
2433 * If this function returns with an error, then it's possible one or
2434 * more of the rings is populated (while the rest are not). It is the
2435 * callers duty to clean those orphaned rings.
2437 * Return 0 on success, negative on failure
2439 static int i40e_vsi_setup_tx_resources(struct i40e_vsi
*vsi
)
2443 for (i
= 0; i
< vsi
->num_queue_pairs
&& !err
; i
++)
2444 err
= i40e_setup_tx_descriptors(vsi
->tx_rings
[i
]);
2450 * i40e_vsi_free_tx_resources - Free Tx resources for VSI queues
2451 * @vsi: ptr to the VSI
2453 * Free VSI's transmit software resources
2455 static void i40e_vsi_free_tx_resources(struct i40e_vsi
*vsi
)
2462 for (i
= 0; i
< vsi
->num_queue_pairs
; i
++)
2463 if (vsi
->tx_rings
[i
] && vsi
->tx_rings
[i
]->desc
)
2464 i40e_free_tx_resources(vsi
->tx_rings
[i
]);
2468 * i40e_vsi_setup_rx_resources - Allocate VSI queues Rx resources
2469 * @vsi: ptr to the VSI
2471 * If this function returns with an error, then it's possible one or
2472 * more of the rings is populated (while the rest are not). It is the
2473 * callers duty to clean those orphaned rings.
2475 * Return 0 on success, negative on failure
2477 static int i40e_vsi_setup_rx_resources(struct i40e_vsi
*vsi
)
2481 for (i
= 0; i
< vsi
->num_queue_pairs
&& !err
; i
++)
2482 err
= i40e_setup_rx_descriptors(vsi
->rx_rings
[i
]);
2484 i40e_fcoe_setup_ddp_resources(vsi
);
2490 * i40e_vsi_free_rx_resources - Free Rx Resources for VSI queues
2491 * @vsi: ptr to the VSI
2493 * Free all receive software resources
2495 static void i40e_vsi_free_rx_resources(struct i40e_vsi
*vsi
)
2502 for (i
= 0; i
< vsi
->num_queue_pairs
; i
++)
2503 if (vsi
->rx_rings
[i
] && vsi
->rx_rings
[i
]->desc
)
2504 i40e_free_rx_resources(vsi
->rx_rings
[i
]);
2506 i40e_fcoe_free_ddp_resources(vsi
);
2511 * i40e_config_xps_tx_ring - Configure XPS for a Tx ring
2512 * @ring: The Tx ring to configure
2514 * This enables/disables XPS for a given Tx descriptor ring
2515 * based on the TCs enabled for the VSI that ring belongs to.
2517 static void i40e_config_xps_tx_ring(struct i40e_ring
*ring
)
2519 struct i40e_vsi
*vsi
= ring
->vsi
;
2522 if (!ring
->q_vector
|| !ring
->netdev
)
2525 /* Single TC mode enable XPS */
2526 if (vsi
->tc_config
.numtc
<= 1) {
2527 if (!test_and_set_bit(__I40E_TX_XPS_INIT_DONE
, &ring
->state
))
2528 netif_set_xps_queue(ring
->netdev
,
2529 &ring
->q_vector
->affinity_mask
,
2531 } else if (alloc_cpumask_var(&mask
, GFP_KERNEL
)) {
2532 /* Disable XPS to allow selection based on TC */
2533 bitmap_zero(cpumask_bits(mask
), nr_cpumask_bits
);
2534 netif_set_xps_queue(ring
->netdev
, mask
, ring
->queue_index
);
2535 free_cpumask_var(mask
);
2540 * i40e_configure_tx_ring - Configure a transmit ring context and rest
2541 * @ring: The Tx ring to configure
2543 * Configure the Tx descriptor ring in the HMC context.
2545 static int i40e_configure_tx_ring(struct i40e_ring
*ring
)
2547 struct i40e_vsi
*vsi
= ring
->vsi
;
2548 u16 pf_q
= vsi
->base_queue
+ ring
->queue_index
;
2549 struct i40e_hw
*hw
= &vsi
->back
->hw
;
2550 struct i40e_hmc_obj_txq tx_ctx
;
2551 i40e_status err
= 0;
2554 /* some ATR related tx ring init */
2555 if (vsi
->back
->flags
& I40E_FLAG_FD_ATR_ENABLED
) {
2556 ring
->atr_sample_rate
= vsi
->back
->atr_sample_rate
;
2557 ring
->atr_count
= 0;
2559 ring
->atr_sample_rate
= 0;
2563 i40e_config_xps_tx_ring(ring
);
2565 /* clear the context structure first */
2566 memset(&tx_ctx
, 0, sizeof(tx_ctx
));
2568 tx_ctx
.new_context
= 1;
2569 tx_ctx
.base
= (ring
->dma
/ 128);
2570 tx_ctx
.qlen
= ring
->count
;
2571 tx_ctx
.fd_ena
= !!(vsi
->back
->flags
& (I40E_FLAG_FD_SB_ENABLED
|
2572 I40E_FLAG_FD_ATR_ENABLED
));
2574 tx_ctx
.fc_ena
= (vsi
->type
== I40E_VSI_FCOE
);
2576 tx_ctx
.timesync_ena
= !!(vsi
->back
->flags
& I40E_FLAG_PTP
);
2577 /* FDIR VSI tx ring can still use RS bit and writebacks */
2578 if (vsi
->type
!= I40E_VSI_FDIR
)
2579 tx_ctx
.head_wb_ena
= 1;
2580 tx_ctx
.head_wb_addr
= ring
->dma
+
2581 (ring
->count
* sizeof(struct i40e_tx_desc
));
2583 /* As part of VSI creation/update, FW allocates certain
2584 * Tx arbitration queue sets for each TC enabled for
2585 * the VSI. The FW returns the handles to these queue
2586 * sets as part of the response buffer to Add VSI,
2587 * Update VSI, etc. AQ commands. It is expected that
2588 * these queue set handles be associated with the Tx
2589 * queues by the driver as part of the TX queue context
2590 * initialization. This has to be done regardless of
2591 * DCB as by default everything is mapped to TC0.
2593 tx_ctx
.rdylist
= le16_to_cpu(vsi
->info
.qs_handle
[ring
->dcb_tc
]);
2594 tx_ctx
.rdylist_act
= 0;
2596 /* clear the context in the HMC */
2597 err
= i40e_clear_lan_tx_queue_context(hw
, pf_q
);
2599 dev_info(&vsi
->back
->pdev
->dev
,
2600 "Failed to clear LAN Tx queue context on Tx ring %d (pf_q %d), error: %d\n",
2601 ring
->queue_index
, pf_q
, err
);
2605 /* set the context in the HMC */
2606 err
= i40e_set_lan_tx_queue_context(hw
, pf_q
, &tx_ctx
);
2608 dev_info(&vsi
->back
->pdev
->dev
,
2609 "Failed to set LAN Tx queue context on Tx ring %d (pf_q %d, error: %d\n",
2610 ring
->queue_index
, pf_q
, err
);
2614 /* Now associate this queue with this PCI function */
2615 if (vsi
->type
== I40E_VSI_VMDQ2
) {
2616 qtx_ctl
= I40E_QTX_CTL_VM_QUEUE
;
2617 qtx_ctl
|= ((vsi
->id
) << I40E_QTX_CTL_VFVM_INDX_SHIFT
) &
2618 I40E_QTX_CTL_VFVM_INDX_MASK
;
2620 qtx_ctl
= I40E_QTX_CTL_PF_QUEUE
;
2623 qtx_ctl
|= ((hw
->pf_id
<< I40E_QTX_CTL_PF_INDX_SHIFT
) &
2624 I40E_QTX_CTL_PF_INDX_MASK
);
2625 wr32(hw
, I40E_QTX_CTL(pf_q
), qtx_ctl
);
2628 /* cache tail off for easier writes later */
2629 ring
->tail
= hw
->hw_addr
+ I40E_QTX_TAIL(pf_q
);
2635 * i40e_configure_rx_ring - Configure a receive ring context
2636 * @ring: The Rx ring to configure
2638 * Configure the Rx descriptor ring in the HMC context.
2640 static int i40e_configure_rx_ring(struct i40e_ring
*ring
)
2642 struct i40e_vsi
*vsi
= ring
->vsi
;
2643 u32 chain_len
= vsi
->back
->hw
.func_caps
.rx_buf_chain_len
;
2644 u16 pf_q
= vsi
->base_queue
+ ring
->queue_index
;
2645 struct i40e_hw
*hw
= &vsi
->back
->hw
;
2646 struct i40e_hmc_obj_rxq rx_ctx
;
2647 i40e_status err
= 0;
2651 /* clear the context structure first */
2652 memset(&rx_ctx
, 0, sizeof(rx_ctx
));
2654 ring
->rx_buf_len
= vsi
->rx_buf_len
;
2655 ring
->rx_hdr_len
= vsi
->rx_hdr_len
;
2657 rx_ctx
.dbuff
= ring
->rx_buf_len
>> I40E_RXQ_CTX_DBUFF_SHIFT
;
2658 rx_ctx
.hbuff
= ring
->rx_hdr_len
>> I40E_RXQ_CTX_HBUFF_SHIFT
;
2660 rx_ctx
.base
= (ring
->dma
/ 128);
2661 rx_ctx
.qlen
= ring
->count
;
2663 if (vsi
->back
->flags
& I40E_FLAG_16BYTE_RX_DESC_ENABLED
) {
2664 set_ring_16byte_desc_enabled(ring
);
2670 rx_ctx
.dtype
= vsi
->dtype
;
2672 set_ring_ps_enabled(ring
);
2673 rx_ctx
.hsplit_0
= I40E_RX_SPLIT_L2
|
2675 I40E_RX_SPLIT_TCP_UDP
|
2678 rx_ctx
.hsplit_0
= 0;
2681 rx_ctx
.rxmax
= min_t(u16
, vsi
->max_frame
,
2682 (chain_len
* ring
->rx_buf_len
));
2683 if (hw
->revision_id
== 0)
2684 rx_ctx
.lrxqthresh
= 0;
2686 rx_ctx
.lrxqthresh
= 2;
2687 rx_ctx
.crcstrip
= 1;
2689 /* this controls whether VLAN is stripped from inner headers */
2692 rx_ctx
.fc_ena
= (vsi
->type
== I40E_VSI_FCOE
);
2694 /* set the prefena field to 1 because the manual says to */
2697 /* clear the context in the HMC */
2698 err
= i40e_clear_lan_rx_queue_context(hw
, pf_q
);
2700 dev_info(&vsi
->back
->pdev
->dev
,
2701 "Failed to clear LAN Rx queue context on Rx ring %d (pf_q %d), error: %d\n",
2702 ring
->queue_index
, pf_q
, err
);
2706 /* set the context in the HMC */
2707 err
= i40e_set_lan_rx_queue_context(hw
, pf_q
, &rx_ctx
);
2709 dev_info(&vsi
->back
->pdev
->dev
,
2710 "Failed to set LAN Rx queue context on Rx ring %d (pf_q %d), error: %d\n",
2711 ring
->queue_index
, pf_q
, err
);
2715 /* cache tail for quicker writes, and clear the reg before use */
2716 ring
->tail
= hw
->hw_addr
+ I40E_QRX_TAIL(pf_q
);
2717 writel(0, ring
->tail
);
2719 if (ring_is_ps_enabled(ring
)) {
2720 i40e_alloc_rx_headers(ring
);
2721 i40e_alloc_rx_buffers_ps(ring
, I40E_DESC_UNUSED(ring
));
2723 i40e_alloc_rx_buffers_1buf(ring
, I40E_DESC_UNUSED(ring
));
2730 * i40e_vsi_configure_tx - Configure the VSI for Tx
2731 * @vsi: VSI structure describing this set of rings and resources
2733 * Configure the Tx VSI for operation.
2735 static int i40e_vsi_configure_tx(struct i40e_vsi
*vsi
)
2740 for (i
= 0; (i
< vsi
->num_queue_pairs
) && !err
; i
++)
2741 err
= i40e_configure_tx_ring(vsi
->tx_rings
[i
]);
2747 * i40e_vsi_configure_rx - Configure the VSI for Rx
2748 * @vsi: the VSI being configured
2750 * Configure the Rx VSI for operation.
2752 static int i40e_vsi_configure_rx(struct i40e_vsi
*vsi
)
2757 if (vsi
->netdev
&& (vsi
->netdev
->mtu
> ETH_DATA_LEN
))
2758 vsi
->max_frame
= vsi
->netdev
->mtu
+ ETH_HLEN
2759 + ETH_FCS_LEN
+ VLAN_HLEN
;
2761 vsi
->max_frame
= I40E_RXBUFFER_2048
;
2763 /* figure out correct receive buffer length */
2764 switch (vsi
->back
->flags
& (I40E_FLAG_RX_1BUF_ENABLED
|
2765 I40E_FLAG_RX_PS_ENABLED
)) {
2766 case I40E_FLAG_RX_1BUF_ENABLED
:
2767 vsi
->rx_hdr_len
= 0;
2768 vsi
->rx_buf_len
= vsi
->max_frame
;
2769 vsi
->dtype
= I40E_RX_DTYPE_NO_SPLIT
;
2771 case I40E_FLAG_RX_PS_ENABLED
:
2772 vsi
->rx_hdr_len
= I40E_RX_HDR_SIZE
;
2773 vsi
->rx_buf_len
= I40E_RXBUFFER_2048
;
2774 vsi
->dtype
= I40E_RX_DTYPE_HEADER_SPLIT
;
2777 vsi
->rx_hdr_len
= I40E_RX_HDR_SIZE
;
2778 vsi
->rx_buf_len
= I40E_RXBUFFER_2048
;
2779 vsi
->dtype
= I40E_RX_DTYPE_SPLIT_ALWAYS
;
2784 /* setup rx buffer for FCoE */
2785 if ((vsi
->type
== I40E_VSI_FCOE
) &&
2786 (vsi
->back
->flags
& I40E_FLAG_FCOE_ENABLED
)) {
2787 vsi
->rx_hdr_len
= 0;
2788 vsi
->rx_buf_len
= I40E_RXBUFFER_3072
;
2789 vsi
->max_frame
= I40E_RXBUFFER_3072
;
2790 vsi
->dtype
= I40E_RX_DTYPE_NO_SPLIT
;
2793 #endif /* I40E_FCOE */
2794 /* round up for the chip's needs */
2795 vsi
->rx_hdr_len
= ALIGN(vsi
->rx_hdr_len
,
2796 BIT_ULL(I40E_RXQ_CTX_HBUFF_SHIFT
));
2797 vsi
->rx_buf_len
= ALIGN(vsi
->rx_buf_len
,
2798 BIT_ULL(I40E_RXQ_CTX_DBUFF_SHIFT
));
2800 /* set up individual rings */
2801 for (i
= 0; i
< vsi
->num_queue_pairs
&& !err
; i
++)
2802 err
= i40e_configure_rx_ring(vsi
->rx_rings
[i
]);
2808 * i40e_vsi_config_dcb_rings - Update rings to reflect DCB TC
2809 * @vsi: ptr to the VSI
2811 static void i40e_vsi_config_dcb_rings(struct i40e_vsi
*vsi
)
2813 struct i40e_ring
*tx_ring
, *rx_ring
;
2814 u16 qoffset
, qcount
;
2817 if (!(vsi
->back
->flags
& I40E_FLAG_DCB_ENABLED
)) {
2818 /* Reset the TC information */
2819 for (i
= 0; i
< vsi
->num_queue_pairs
; i
++) {
2820 rx_ring
= vsi
->rx_rings
[i
];
2821 tx_ring
= vsi
->tx_rings
[i
];
2822 rx_ring
->dcb_tc
= 0;
2823 tx_ring
->dcb_tc
= 0;
2827 for (n
= 0; n
< I40E_MAX_TRAFFIC_CLASS
; n
++) {
2828 if (!(vsi
->tc_config
.enabled_tc
& BIT_ULL(n
)))
2831 qoffset
= vsi
->tc_config
.tc_info
[n
].qoffset
;
2832 qcount
= vsi
->tc_config
.tc_info
[n
].qcount
;
2833 for (i
= qoffset
; i
< (qoffset
+ qcount
); i
++) {
2834 rx_ring
= vsi
->rx_rings
[i
];
2835 tx_ring
= vsi
->tx_rings
[i
];
2836 rx_ring
->dcb_tc
= n
;
2837 tx_ring
->dcb_tc
= n
;
2843 * i40e_set_vsi_rx_mode - Call set_rx_mode on a VSI
2844 * @vsi: ptr to the VSI
2846 static void i40e_set_vsi_rx_mode(struct i40e_vsi
*vsi
)
2849 i40e_set_rx_mode(vsi
->netdev
);
2853 * i40e_fdir_filter_restore - Restore the Sideband Flow Director filters
2854 * @vsi: Pointer to the targeted VSI
2856 * This function replays the hlist on the hw where all the SB Flow Director
2857 * filters were saved.
2859 static void i40e_fdir_filter_restore(struct i40e_vsi
*vsi
)
2861 struct i40e_fdir_filter
*filter
;
2862 struct i40e_pf
*pf
= vsi
->back
;
2863 struct hlist_node
*node
;
2865 if (!(pf
->flags
& I40E_FLAG_FD_SB_ENABLED
))
2868 hlist_for_each_entry_safe(filter
, node
,
2869 &pf
->fdir_filter_list
, fdir_node
) {
2870 i40e_add_del_fdir(vsi
, filter
, true);
2875 * i40e_vsi_configure - Set up the VSI for action
2876 * @vsi: the VSI being configured
2878 static int i40e_vsi_configure(struct i40e_vsi
*vsi
)
2882 i40e_set_vsi_rx_mode(vsi
);
2883 i40e_restore_vlan(vsi
);
2884 i40e_vsi_config_dcb_rings(vsi
);
2885 err
= i40e_vsi_configure_tx(vsi
);
2887 err
= i40e_vsi_configure_rx(vsi
);
2893 * i40e_vsi_configure_msix - MSIX mode Interrupt Config in the HW
2894 * @vsi: the VSI being configured
2896 static void i40e_vsi_configure_msix(struct i40e_vsi
*vsi
)
2898 struct i40e_pf
*pf
= vsi
->back
;
2899 struct i40e_q_vector
*q_vector
;
2900 struct i40e_hw
*hw
= &pf
->hw
;
2906 /* The interrupt indexing is offset by 1 in the PFINT_ITRn
2907 * and PFINT_LNKLSTn registers, e.g.:
2908 * PFINT_ITRn[0..n-1] gets msix-1..msix-n (qpair interrupts)
2910 qp
= vsi
->base_queue
;
2911 vector
= vsi
->base_vector
;
2912 for (i
= 0; i
< vsi
->num_q_vectors
; i
++, vector
++) {
2913 q_vector
= vsi
->q_vectors
[i
];
2914 q_vector
->rx
.itr
= ITR_TO_REG(vsi
->rx_itr_setting
);
2915 q_vector
->rx
.latency_range
= I40E_LOW_LATENCY
;
2916 wr32(hw
, I40E_PFINT_ITRN(I40E_RX_ITR
, vector
- 1),
2918 q_vector
->tx
.itr
= ITR_TO_REG(vsi
->tx_itr_setting
);
2919 q_vector
->tx
.latency_range
= I40E_LOW_LATENCY
;
2920 wr32(hw
, I40E_PFINT_ITRN(I40E_TX_ITR
, vector
- 1),
2923 /* Linked list for the queuepairs assigned to this vector */
2924 wr32(hw
, I40E_PFINT_LNKLSTN(vector
- 1), qp
);
2925 for (q
= 0; q
< q_vector
->num_ringpairs
; q
++) {
2926 val
= I40E_QINT_RQCTL_CAUSE_ENA_MASK
|
2927 (I40E_RX_ITR
<< I40E_QINT_RQCTL_ITR_INDX_SHIFT
) |
2928 (vector
<< I40E_QINT_RQCTL_MSIX_INDX_SHIFT
) |
2929 (qp
<< I40E_QINT_RQCTL_NEXTQ_INDX_SHIFT
)|
2931 << I40E_QINT_RQCTL_NEXTQ_TYPE_SHIFT
);
2933 wr32(hw
, I40E_QINT_RQCTL(qp
), val
);
2935 val
= I40E_QINT_TQCTL_CAUSE_ENA_MASK
|
2936 (I40E_TX_ITR
<< I40E_QINT_TQCTL_ITR_INDX_SHIFT
) |
2937 (vector
<< I40E_QINT_TQCTL_MSIX_INDX_SHIFT
) |
2938 ((qp
+1) << I40E_QINT_TQCTL_NEXTQ_INDX_SHIFT
)|
2940 << I40E_QINT_TQCTL_NEXTQ_TYPE_SHIFT
);
2942 /* Terminate the linked list */
2943 if (q
== (q_vector
->num_ringpairs
- 1))
2944 val
|= (I40E_QUEUE_END_OF_LIST
2945 << I40E_QINT_TQCTL_NEXTQ_INDX_SHIFT
);
2947 wr32(hw
, I40E_QINT_TQCTL(qp
), val
);
2956 * i40e_enable_misc_int_causes - enable the non-queue interrupts
2957 * @hw: ptr to the hardware info
2959 static void i40e_enable_misc_int_causes(struct i40e_pf
*pf
)
2961 struct i40e_hw
*hw
= &pf
->hw
;
2964 /* clear things first */
2965 wr32(hw
, I40E_PFINT_ICR0_ENA
, 0); /* disable all */
2966 rd32(hw
, I40E_PFINT_ICR0
); /* read to clear */
2968 val
= I40E_PFINT_ICR0_ENA_ECC_ERR_MASK
|
2969 I40E_PFINT_ICR0_ENA_MAL_DETECT_MASK
|
2970 I40E_PFINT_ICR0_ENA_GRST_MASK
|
2971 I40E_PFINT_ICR0_ENA_PCI_EXCEPTION_MASK
|
2972 I40E_PFINT_ICR0_ENA_GPIO_MASK
|
2973 I40E_PFINT_ICR0_ENA_HMC_ERR_MASK
|
2974 I40E_PFINT_ICR0_ENA_VFLR_MASK
|
2975 I40E_PFINT_ICR0_ENA_ADMINQ_MASK
;
2977 if (pf
->flags
& I40E_FLAG_IWARP_ENABLED
)
2978 val
|= I40E_PFINT_ICR0_ENA_PE_CRITERR_MASK
;
2980 if (pf
->flags
& I40E_FLAG_PTP
)
2981 val
|= I40E_PFINT_ICR0_ENA_TIMESYNC_MASK
;
2983 wr32(hw
, I40E_PFINT_ICR0_ENA
, val
);
2985 /* SW_ITR_IDX = 0, but don't change INTENA */
2986 wr32(hw
, I40E_PFINT_DYN_CTL0
, I40E_PFINT_DYN_CTL0_SW_ITR_INDX_MASK
|
2987 I40E_PFINT_DYN_CTL0_INTENA_MSK_MASK
);
2989 /* OTHER_ITR_IDX = 0 */
2990 wr32(hw
, I40E_PFINT_STAT_CTL0
, 0);
2994 * i40e_configure_msi_and_legacy - Legacy mode interrupt config in the HW
2995 * @vsi: the VSI being configured
2997 static void i40e_configure_msi_and_legacy(struct i40e_vsi
*vsi
)
2999 struct i40e_q_vector
*q_vector
= vsi
->q_vectors
[0];
3000 struct i40e_pf
*pf
= vsi
->back
;
3001 struct i40e_hw
*hw
= &pf
->hw
;
3004 /* set the ITR configuration */
3005 q_vector
->rx
.itr
= ITR_TO_REG(vsi
->rx_itr_setting
);
3006 q_vector
->rx
.latency_range
= I40E_LOW_LATENCY
;
3007 wr32(hw
, I40E_PFINT_ITR0(I40E_RX_ITR
), q_vector
->rx
.itr
);
3008 q_vector
->tx
.itr
= ITR_TO_REG(vsi
->tx_itr_setting
);
3009 q_vector
->tx
.latency_range
= I40E_LOW_LATENCY
;
3010 wr32(hw
, I40E_PFINT_ITR0(I40E_TX_ITR
), q_vector
->tx
.itr
);
3012 i40e_enable_misc_int_causes(pf
);
3014 /* FIRSTQ_INDX = 0, FIRSTQ_TYPE = 0 (rx) */
3015 wr32(hw
, I40E_PFINT_LNKLST0
, 0);
3017 /* Associate the queue pair to the vector and enable the queue int */
3018 val
= I40E_QINT_RQCTL_CAUSE_ENA_MASK
|
3019 (I40E_RX_ITR
<< I40E_QINT_RQCTL_ITR_INDX_SHIFT
) |
3020 (I40E_QUEUE_TYPE_TX
<< I40E_QINT_TQCTL_NEXTQ_TYPE_SHIFT
);
3022 wr32(hw
, I40E_QINT_RQCTL(0), val
);
3024 val
= I40E_QINT_TQCTL_CAUSE_ENA_MASK
|
3025 (I40E_TX_ITR
<< I40E_QINT_TQCTL_ITR_INDX_SHIFT
) |
3026 (I40E_QUEUE_END_OF_LIST
<< I40E_QINT_TQCTL_NEXTQ_INDX_SHIFT
);
3028 wr32(hw
, I40E_QINT_TQCTL(0), val
);
3033 * i40e_irq_dynamic_disable_icr0 - Disable default interrupt generation for icr0
3034 * @pf: board private structure
3036 void i40e_irq_dynamic_disable_icr0(struct i40e_pf
*pf
)
3038 struct i40e_hw
*hw
= &pf
->hw
;
3040 wr32(hw
, I40E_PFINT_DYN_CTL0
,
3041 I40E_ITR_NONE
<< I40E_PFINT_DYN_CTLN_ITR_INDX_SHIFT
);
3046 * i40e_irq_dynamic_enable_icr0 - Enable default interrupt generation for icr0
3047 * @pf: board private structure
3049 void i40e_irq_dynamic_enable_icr0(struct i40e_pf
*pf
)
3051 struct i40e_hw
*hw
= &pf
->hw
;
3054 val
= I40E_PFINT_DYN_CTL0_INTENA_MASK
|
3055 I40E_PFINT_DYN_CTL0_CLEARPBA_MASK
|
3056 (I40E_ITR_NONE
<< I40E_PFINT_DYN_CTL0_ITR_INDX_SHIFT
);
3058 wr32(hw
, I40E_PFINT_DYN_CTL0
, val
);
3063 * i40e_irq_dynamic_enable - Enable default interrupt generation settings
3064 * @vsi: pointer to a vsi
3065 * @vector: enable a particular Hw Interrupt vector, without base_vector
3067 void i40e_irq_dynamic_enable(struct i40e_vsi
*vsi
, int vector
)
3069 struct i40e_pf
*pf
= vsi
->back
;
3070 struct i40e_hw
*hw
= &pf
->hw
;
3073 val
= I40E_PFINT_DYN_CTLN_INTENA_MASK
|
3074 I40E_PFINT_DYN_CTLN_CLEARPBA_MASK
|
3075 (I40E_ITR_NONE
<< I40E_PFINT_DYN_CTLN_ITR_INDX_SHIFT
);
3076 wr32(hw
, I40E_PFINT_DYN_CTLN(vector
+ vsi
->base_vector
- 1), val
);
3077 /* skip the flush */
3081 * i40e_irq_dynamic_disable - Disable default interrupt generation settings
3082 * @vsi: pointer to a vsi
3083 * @vector: disable a particular Hw Interrupt vector
3085 void i40e_irq_dynamic_disable(struct i40e_vsi
*vsi
, int vector
)
3087 struct i40e_pf
*pf
= vsi
->back
;
3088 struct i40e_hw
*hw
= &pf
->hw
;
3091 val
= I40E_ITR_NONE
<< I40E_PFINT_DYN_CTLN_ITR_INDX_SHIFT
;
3092 wr32(hw
, I40E_PFINT_DYN_CTLN(vector
- 1), val
);
3097 * i40e_msix_clean_rings - MSIX mode Interrupt Handler
3098 * @irq: interrupt number
3099 * @data: pointer to a q_vector
3101 static irqreturn_t
i40e_msix_clean_rings(int irq
, void *data
)
3103 struct i40e_q_vector
*q_vector
= data
;
3105 if (!q_vector
->tx
.ring
&& !q_vector
->rx
.ring
)
3108 napi_schedule(&q_vector
->napi
);
3114 * i40e_vsi_request_irq_msix - Initialize MSI-X interrupts
3115 * @vsi: the VSI being configured
3116 * @basename: name for the vector
3118 * Allocates MSI-X vectors and requests interrupts from the kernel.
3120 static int i40e_vsi_request_irq_msix(struct i40e_vsi
*vsi
, char *basename
)
3122 int q_vectors
= vsi
->num_q_vectors
;
3123 struct i40e_pf
*pf
= vsi
->back
;
3124 int base
= vsi
->base_vector
;
3129 for (vector
= 0; vector
< q_vectors
; vector
++) {
3130 struct i40e_q_vector
*q_vector
= vsi
->q_vectors
[vector
];
3132 if (q_vector
->tx
.ring
&& q_vector
->rx
.ring
) {
3133 snprintf(q_vector
->name
, sizeof(q_vector
->name
) - 1,
3134 "%s-%s-%d", basename
, "TxRx", rx_int_idx
++);
3136 } else if (q_vector
->rx
.ring
) {
3137 snprintf(q_vector
->name
, sizeof(q_vector
->name
) - 1,
3138 "%s-%s-%d", basename
, "rx", rx_int_idx
++);
3139 } else if (q_vector
->tx
.ring
) {
3140 snprintf(q_vector
->name
, sizeof(q_vector
->name
) - 1,
3141 "%s-%s-%d", basename
, "tx", tx_int_idx
++);
3143 /* skip this unused q_vector */
3146 err
= request_irq(pf
->msix_entries
[base
+ vector
].vector
,
3152 dev_info(&pf
->pdev
->dev
,
3153 "MSIX request_irq failed, error: %d\n", err
);
3154 goto free_queue_irqs
;
3156 /* assign the mask for this irq */
3157 irq_set_affinity_hint(pf
->msix_entries
[base
+ vector
].vector
,
3158 &q_vector
->affinity_mask
);
3161 vsi
->irqs_ready
= true;
3167 irq_set_affinity_hint(pf
->msix_entries
[base
+ vector
].vector
,
3169 free_irq(pf
->msix_entries
[base
+ vector
].vector
,
3170 &(vsi
->q_vectors
[vector
]));
3176 * i40e_vsi_disable_irq - Mask off queue interrupt generation on the VSI
3177 * @vsi: the VSI being un-configured
3179 static void i40e_vsi_disable_irq(struct i40e_vsi
*vsi
)
3181 struct i40e_pf
*pf
= vsi
->back
;
3182 struct i40e_hw
*hw
= &pf
->hw
;
3183 int base
= vsi
->base_vector
;
3186 for (i
= 0; i
< vsi
->num_queue_pairs
; i
++) {
3187 wr32(hw
, I40E_QINT_TQCTL(vsi
->tx_rings
[i
]->reg_idx
), 0);
3188 wr32(hw
, I40E_QINT_RQCTL(vsi
->rx_rings
[i
]->reg_idx
), 0);
3191 if (pf
->flags
& I40E_FLAG_MSIX_ENABLED
) {
3192 for (i
= vsi
->base_vector
;
3193 i
< (vsi
->num_q_vectors
+ vsi
->base_vector
); i
++)
3194 wr32(hw
, I40E_PFINT_DYN_CTLN(i
- 1), 0);
3197 for (i
= 0; i
< vsi
->num_q_vectors
; i
++)
3198 synchronize_irq(pf
->msix_entries
[i
+ base
].vector
);
3200 /* Legacy and MSI mode - this stops all interrupt handling */
3201 wr32(hw
, I40E_PFINT_ICR0_ENA
, 0);
3202 wr32(hw
, I40E_PFINT_DYN_CTL0
, 0);
3204 synchronize_irq(pf
->pdev
->irq
);
3209 * i40e_vsi_enable_irq - Enable IRQ for the given VSI
3210 * @vsi: the VSI being configured
3212 static int i40e_vsi_enable_irq(struct i40e_vsi
*vsi
)
3214 struct i40e_pf
*pf
= vsi
->back
;
3217 if (pf
->flags
& I40E_FLAG_MSIX_ENABLED
) {
3218 for (i
= 0; i
< vsi
->num_q_vectors
; i
++)
3219 i40e_irq_dynamic_enable(vsi
, i
);
3221 i40e_irq_dynamic_enable_icr0(pf
);
3224 i40e_flush(&pf
->hw
);
3229 * i40e_stop_misc_vector - Stop the vector that handles non-queue events
3230 * @pf: board private structure
3232 static void i40e_stop_misc_vector(struct i40e_pf
*pf
)
3235 wr32(&pf
->hw
, I40E_PFINT_ICR0_ENA
, 0);
3236 i40e_flush(&pf
->hw
);
3240 * i40e_intr - MSI/Legacy and non-queue interrupt handler
3241 * @irq: interrupt number
3242 * @data: pointer to a q_vector
3244 * This is the handler used for all MSI/Legacy interrupts, and deals
3245 * with both queue and non-queue interrupts. This is also used in
3246 * MSIX mode to handle the non-queue interrupts.
3248 static irqreturn_t
i40e_intr(int irq
, void *data
)
3250 struct i40e_pf
*pf
= (struct i40e_pf
*)data
;
3251 struct i40e_hw
*hw
= &pf
->hw
;
3252 irqreturn_t ret
= IRQ_NONE
;
3253 u32 icr0
, icr0_remaining
;
3256 icr0
= rd32(hw
, I40E_PFINT_ICR0
);
3257 ena_mask
= rd32(hw
, I40E_PFINT_ICR0_ENA
);
3259 /* if sharing a legacy IRQ, we might get called w/o an intr pending */
3260 if ((icr0
& I40E_PFINT_ICR0_INTEVENT_MASK
) == 0)
3263 /* if interrupt but no bits showing, must be SWINT */
3264 if (((icr0
& ~I40E_PFINT_ICR0_INTEVENT_MASK
) == 0) ||
3265 (icr0
& I40E_PFINT_ICR0_SWINT_MASK
))
3268 if ((pf
->flags
& I40E_FLAG_IWARP_ENABLED
) &&
3269 (ena_mask
& I40E_PFINT_ICR0_ENA_PE_CRITERR_MASK
)) {
3270 ena_mask
&= ~I40E_PFINT_ICR0_ENA_PE_CRITERR_MASK
;
3271 icr0
&= ~I40E_PFINT_ICR0_ENA_PE_CRITERR_MASK
;
3272 dev_info(&pf
->pdev
->dev
, "cleared PE_CRITERR\n");
3275 /* only q0 is used in MSI/Legacy mode, and none are used in MSIX */
3276 if (icr0
& I40E_PFINT_ICR0_QUEUE_0_MASK
) {
3278 /* temporarily disable queue cause for NAPI processing */
3279 u32 qval
= rd32(hw
, I40E_QINT_RQCTL(0));
3280 qval
&= ~I40E_QINT_RQCTL_CAUSE_ENA_MASK
;
3281 wr32(hw
, I40E_QINT_RQCTL(0), qval
);
3283 qval
= rd32(hw
, I40E_QINT_TQCTL(0));
3284 qval
&= ~I40E_QINT_TQCTL_CAUSE_ENA_MASK
;
3285 wr32(hw
, I40E_QINT_TQCTL(0), qval
);
3287 if (!test_bit(__I40E_DOWN
, &pf
->state
))
3288 napi_schedule(&pf
->vsi
[pf
->lan_vsi
]->q_vectors
[0]->napi
);
3291 if (icr0
& I40E_PFINT_ICR0_ADMINQ_MASK
) {
3292 ena_mask
&= ~I40E_PFINT_ICR0_ENA_ADMINQ_MASK
;
3293 set_bit(__I40E_ADMINQ_EVENT_PENDING
, &pf
->state
);
3296 if (icr0
& I40E_PFINT_ICR0_MAL_DETECT_MASK
) {
3297 ena_mask
&= ~I40E_PFINT_ICR0_ENA_MAL_DETECT_MASK
;
3298 set_bit(__I40E_MDD_EVENT_PENDING
, &pf
->state
);
3301 if (icr0
& I40E_PFINT_ICR0_VFLR_MASK
) {
3302 ena_mask
&= ~I40E_PFINT_ICR0_ENA_VFLR_MASK
;
3303 set_bit(__I40E_VFLR_EVENT_PENDING
, &pf
->state
);
3306 if (icr0
& I40E_PFINT_ICR0_GRST_MASK
) {
3307 if (!test_bit(__I40E_RESET_RECOVERY_PENDING
, &pf
->state
))
3308 set_bit(__I40E_RESET_INTR_RECEIVED
, &pf
->state
);
3309 ena_mask
&= ~I40E_PFINT_ICR0_ENA_GRST_MASK
;
3310 val
= rd32(hw
, I40E_GLGEN_RSTAT
);
3311 val
= (val
& I40E_GLGEN_RSTAT_RESET_TYPE_MASK
)
3312 >> I40E_GLGEN_RSTAT_RESET_TYPE_SHIFT
;
3313 if (val
== I40E_RESET_CORER
) {
3315 } else if (val
== I40E_RESET_GLOBR
) {
3317 } else if (val
== I40E_RESET_EMPR
) {
3319 set_bit(__I40E_EMP_RESET_INTR_RECEIVED
, &pf
->state
);
3323 if (icr0
& I40E_PFINT_ICR0_HMC_ERR_MASK
) {
3324 icr0
&= ~I40E_PFINT_ICR0_HMC_ERR_MASK
;
3325 dev_info(&pf
->pdev
->dev
, "HMC error interrupt\n");
3326 dev_info(&pf
->pdev
->dev
, "HMC error info 0x%x, HMC error data 0x%x\n",
3327 rd32(hw
, I40E_PFHMC_ERRORINFO
),
3328 rd32(hw
, I40E_PFHMC_ERRORDATA
));
3331 if (icr0
& I40E_PFINT_ICR0_TIMESYNC_MASK
) {
3332 u32 prttsyn_stat
= rd32(hw
, I40E_PRTTSYN_STAT_0
);
3334 if (prttsyn_stat
& I40E_PRTTSYN_STAT_0_TXTIME_MASK
) {
3335 icr0
&= ~I40E_PFINT_ICR0_ENA_TIMESYNC_MASK
;
3336 i40e_ptp_tx_hwtstamp(pf
);
3340 /* If a critical error is pending we have no choice but to reset the
3342 * Report and mask out any remaining unexpected interrupts.
3344 icr0_remaining
= icr0
& ena_mask
;
3345 if (icr0_remaining
) {
3346 dev_info(&pf
->pdev
->dev
, "unhandled interrupt icr0=0x%08x\n",
3348 if ((icr0_remaining
& I40E_PFINT_ICR0_PE_CRITERR_MASK
) ||
3349 (icr0_remaining
& I40E_PFINT_ICR0_PCI_EXCEPTION_MASK
) ||
3350 (icr0_remaining
& I40E_PFINT_ICR0_ECC_ERR_MASK
)) {
3351 dev_info(&pf
->pdev
->dev
, "device will be reset\n");
3352 set_bit(__I40E_PF_RESET_REQUESTED
, &pf
->state
);
3353 i40e_service_event_schedule(pf
);
3355 ena_mask
&= ~icr0_remaining
;
3360 /* re-enable interrupt causes */
3361 wr32(hw
, I40E_PFINT_ICR0_ENA
, ena_mask
);
3362 if (!test_bit(__I40E_DOWN
, &pf
->state
)) {
3363 i40e_service_event_schedule(pf
);
3364 i40e_irq_dynamic_enable_icr0(pf
);
3371 * i40e_clean_fdir_tx_irq - Reclaim resources after transmit completes
3372 * @tx_ring: tx ring to clean
3373 * @budget: how many cleans we're allowed
3375 * Returns true if there's any budget left (e.g. the clean is finished)
3377 static bool i40e_clean_fdir_tx_irq(struct i40e_ring
*tx_ring
, int budget
)
3379 struct i40e_vsi
*vsi
= tx_ring
->vsi
;
3380 u16 i
= tx_ring
->next_to_clean
;
3381 struct i40e_tx_buffer
*tx_buf
;
3382 struct i40e_tx_desc
*tx_desc
;
3384 tx_buf
= &tx_ring
->tx_bi
[i
];
3385 tx_desc
= I40E_TX_DESC(tx_ring
, i
);
3386 i
-= tx_ring
->count
;
3389 struct i40e_tx_desc
*eop_desc
= tx_buf
->next_to_watch
;
3391 /* if next_to_watch is not set then there is no work pending */
3395 /* prevent any other reads prior to eop_desc */
3396 read_barrier_depends();
3398 /* if the descriptor isn't done, no work yet to do */
3399 if (!(eop_desc
->cmd_type_offset_bsz
&
3400 cpu_to_le64(I40E_TX_DESC_DTYPE_DESC_DONE
)))
3403 /* clear next_to_watch to prevent false hangs */
3404 tx_buf
->next_to_watch
= NULL
;
3406 tx_desc
->buffer_addr
= 0;
3407 tx_desc
->cmd_type_offset_bsz
= 0;
3408 /* move past filter desc */
3413 i
-= tx_ring
->count
;
3414 tx_buf
= tx_ring
->tx_bi
;
3415 tx_desc
= I40E_TX_DESC(tx_ring
, 0);
3417 /* unmap skb header data */
3418 dma_unmap_single(tx_ring
->dev
,
3419 dma_unmap_addr(tx_buf
, dma
),
3420 dma_unmap_len(tx_buf
, len
),
3422 if (tx_buf
->tx_flags
& I40E_TX_FLAGS_FD_SB
)
3423 kfree(tx_buf
->raw_buf
);
3425 tx_buf
->raw_buf
= NULL
;
3426 tx_buf
->tx_flags
= 0;
3427 tx_buf
->next_to_watch
= NULL
;
3428 dma_unmap_len_set(tx_buf
, len
, 0);
3429 tx_desc
->buffer_addr
= 0;
3430 tx_desc
->cmd_type_offset_bsz
= 0;
3432 /* move us past the eop_desc for start of next FD desc */
3437 i
-= tx_ring
->count
;
3438 tx_buf
= tx_ring
->tx_bi
;
3439 tx_desc
= I40E_TX_DESC(tx_ring
, 0);
3442 /* update budget accounting */
3444 } while (likely(budget
));
3446 i
+= tx_ring
->count
;
3447 tx_ring
->next_to_clean
= i
;
3449 if (vsi
->back
->flags
& I40E_FLAG_MSIX_ENABLED
) {
3450 i40e_irq_dynamic_enable(vsi
, tx_ring
->q_vector
->v_idx
);
3456 * i40e_fdir_clean_ring - Interrupt Handler for FDIR SB ring
3457 * @irq: interrupt number
3458 * @data: pointer to a q_vector
3460 static irqreturn_t
i40e_fdir_clean_ring(int irq
, void *data
)
3462 struct i40e_q_vector
*q_vector
= data
;
3463 struct i40e_vsi
*vsi
;
3465 if (!q_vector
->tx
.ring
)
3468 vsi
= q_vector
->tx
.ring
->vsi
;
3469 i40e_clean_fdir_tx_irq(q_vector
->tx
.ring
, vsi
->work_limit
);
3475 * i40e_map_vector_to_qp - Assigns the queue pair to the vector
3476 * @vsi: the VSI being configured
3477 * @v_idx: vector index
3478 * @qp_idx: queue pair index
3480 static void i40e_map_vector_to_qp(struct i40e_vsi
*vsi
, int v_idx
, int qp_idx
)
3482 struct i40e_q_vector
*q_vector
= vsi
->q_vectors
[v_idx
];
3483 struct i40e_ring
*tx_ring
= vsi
->tx_rings
[qp_idx
];
3484 struct i40e_ring
*rx_ring
= vsi
->rx_rings
[qp_idx
];
3486 tx_ring
->q_vector
= q_vector
;
3487 tx_ring
->next
= q_vector
->tx
.ring
;
3488 q_vector
->tx
.ring
= tx_ring
;
3489 q_vector
->tx
.count
++;
3491 rx_ring
->q_vector
= q_vector
;
3492 rx_ring
->next
= q_vector
->rx
.ring
;
3493 q_vector
->rx
.ring
= rx_ring
;
3494 q_vector
->rx
.count
++;
3498 * i40e_vsi_map_rings_to_vectors - Maps descriptor rings to vectors
3499 * @vsi: the VSI being configured
3501 * This function maps descriptor rings to the queue-specific vectors
3502 * we were allotted through the MSI-X enabling code. Ideally, we'd have
3503 * one vector per queue pair, but on a constrained vector budget, we
3504 * group the queue pairs as "efficiently" as possible.
3506 static void i40e_vsi_map_rings_to_vectors(struct i40e_vsi
*vsi
)
3508 int qp_remaining
= vsi
->num_queue_pairs
;
3509 int q_vectors
= vsi
->num_q_vectors
;
3514 /* If we don't have enough vectors for a 1-to-1 mapping, we'll have to
3515 * group them so there are multiple queues per vector.
3516 * It is also important to go through all the vectors available to be
3517 * sure that if we don't use all the vectors, that the remaining vectors
3518 * are cleared. This is especially important when decreasing the
3519 * number of queues in use.
3521 for (; v_start
< q_vectors
; v_start
++) {
3522 struct i40e_q_vector
*q_vector
= vsi
->q_vectors
[v_start
];
3524 num_ringpairs
= DIV_ROUND_UP(qp_remaining
, q_vectors
- v_start
);
3526 q_vector
->num_ringpairs
= num_ringpairs
;
3528 q_vector
->rx
.count
= 0;
3529 q_vector
->tx
.count
= 0;
3530 q_vector
->rx
.ring
= NULL
;
3531 q_vector
->tx
.ring
= NULL
;
3533 while (num_ringpairs
--) {
3534 i40e_map_vector_to_qp(vsi
, v_start
, qp_idx
);
3542 * i40e_vsi_request_irq - Request IRQ from the OS
3543 * @vsi: the VSI being configured
3544 * @basename: name for the vector
3546 static int i40e_vsi_request_irq(struct i40e_vsi
*vsi
, char *basename
)
3548 struct i40e_pf
*pf
= vsi
->back
;
3551 if (pf
->flags
& I40E_FLAG_MSIX_ENABLED
)
3552 err
= i40e_vsi_request_irq_msix(vsi
, basename
);
3553 else if (pf
->flags
& I40E_FLAG_MSI_ENABLED
)
3554 err
= request_irq(pf
->pdev
->irq
, i40e_intr
, 0,
3557 err
= request_irq(pf
->pdev
->irq
, i40e_intr
, IRQF_SHARED
,
3561 dev_info(&pf
->pdev
->dev
, "request_irq failed, Error %d\n", err
);
3566 #ifdef CONFIG_NET_POLL_CONTROLLER
3568 * i40e_netpoll - A Polling 'interrupt'handler
3569 * @netdev: network interface device structure
3571 * This is used by netconsole to send skbs without having to re-enable
3572 * interrupts. It's not called while the normal interrupt routine is executing.
3575 void i40e_netpoll(struct net_device
*netdev
)
3577 static void i40e_netpoll(struct net_device
*netdev
)
3580 struct i40e_netdev_priv
*np
= netdev_priv(netdev
);
3581 struct i40e_vsi
*vsi
= np
->vsi
;
3582 struct i40e_pf
*pf
= vsi
->back
;
3585 /* if interface is down do nothing */
3586 if (test_bit(__I40E_DOWN
, &vsi
->state
))
3589 pf
->flags
|= I40E_FLAG_IN_NETPOLL
;
3590 if (pf
->flags
& I40E_FLAG_MSIX_ENABLED
) {
3591 for (i
= 0; i
< vsi
->num_q_vectors
; i
++)
3592 i40e_msix_clean_rings(0, vsi
->q_vectors
[i
]);
3594 i40e_intr(pf
->pdev
->irq
, netdev
);
3596 pf
->flags
&= ~I40E_FLAG_IN_NETPOLL
;
3601 * i40e_pf_txq_wait - Wait for a PF's Tx queue to be enabled or disabled
3602 * @pf: the PF being configured
3603 * @pf_q: the PF queue
3604 * @enable: enable or disable state of the queue
3606 * This routine will wait for the given Tx queue of the PF to reach the
3607 * enabled or disabled state.
3608 * Returns -ETIMEDOUT in case of failing to reach the requested state after
3609 * multiple retries; else will return 0 in case of success.
3611 static int i40e_pf_txq_wait(struct i40e_pf
*pf
, int pf_q
, bool enable
)
3616 for (i
= 0; i
< I40E_QUEUE_WAIT_RETRY_LIMIT
; i
++) {
3617 tx_reg
= rd32(&pf
->hw
, I40E_QTX_ENA(pf_q
));
3618 if (enable
== !!(tx_reg
& I40E_QTX_ENA_QENA_STAT_MASK
))
3621 usleep_range(10, 20);
3623 if (i
>= I40E_QUEUE_WAIT_RETRY_LIMIT
)
3630 * i40e_vsi_control_tx - Start or stop a VSI's rings
3631 * @vsi: the VSI being configured
3632 * @enable: start or stop the rings
3634 static int i40e_vsi_control_tx(struct i40e_vsi
*vsi
, bool enable
)
3636 struct i40e_pf
*pf
= vsi
->back
;
3637 struct i40e_hw
*hw
= &pf
->hw
;
3638 int i
, j
, pf_q
, ret
= 0;
3641 pf_q
= vsi
->base_queue
;
3642 for (i
= 0; i
< vsi
->num_queue_pairs
; i
++, pf_q
++) {
3644 /* warn the TX unit of coming changes */
3645 i40e_pre_tx_queue_cfg(&pf
->hw
, pf_q
, enable
);
3647 usleep_range(10, 20);
3649 for (j
= 0; j
< 50; j
++) {
3650 tx_reg
= rd32(hw
, I40E_QTX_ENA(pf_q
));
3651 if (((tx_reg
>> I40E_QTX_ENA_QENA_REQ_SHIFT
) & 1) ==
3652 ((tx_reg
>> I40E_QTX_ENA_QENA_STAT_SHIFT
) & 1))
3654 usleep_range(1000, 2000);
3656 /* Skip if the queue is already in the requested state */
3657 if (enable
== !!(tx_reg
& I40E_QTX_ENA_QENA_STAT_MASK
))
3660 /* turn on/off the queue */
3662 wr32(hw
, I40E_QTX_HEAD(pf_q
), 0);
3663 tx_reg
|= I40E_QTX_ENA_QENA_REQ_MASK
;
3665 tx_reg
&= ~I40E_QTX_ENA_QENA_REQ_MASK
;
3668 wr32(hw
, I40E_QTX_ENA(pf_q
), tx_reg
);
3669 /* No waiting for the Tx queue to disable */
3670 if (!enable
&& test_bit(__I40E_PORT_TX_SUSPENDED
, &pf
->state
))
3673 /* wait for the change to finish */
3674 ret
= i40e_pf_txq_wait(pf
, pf_q
, enable
);
3676 dev_info(&pf
->pdev
->dev
,
3677 "VSI seid %d Tx ring %d %sable timeout\n",
3678 vsi
->seid
, pf_q
, (enable
? "en" : "dis"));
3683 if (hw
->revision_id
== 0)
3689 * i40e_pf_rxq_wait - Wait for a PF's Rx queue to be enabled or disabled
3690 * @pf: the PF being configured
3691 * @pf_q: the PF queue
3692 * @enable: enable or disable state of the queue
3694 * This routine will wait for the given Rx queue of the PF to reach the
3695 * enabled or disabled state.
3696 * Returns -ETIMEDOUT in case of failing to reach the requested state after
3697 * multiple retries; else will return 0 in case of success.
3699 static int i40e_pf_rxq_wait(struct i40e_pf
*pf
, int pf_q
, bool enable
)
3704 for (i
= 0; i
< I40E_QUEUE_WAIT_RETRY_LIMIT
; i
++) {
3705 rx_reg
= rd32(&pf
->hw
, I40E_QRX_ENA(pf_q
));
3706 if (enable
== !!(rx_reg
& I40E_QRX_ENA_QENA_STAT_MASK
))
3709 usleep_range(10, 20);
3711 if (i
>= I40E_QUEUE_WAIT_RETRY_LIMIT
)
3718 * i40e_vsi_control_rx - Start or stop a VSI's rings
3719 * @vsi: the VSI being configured
3720 * @enable: start or stop the rings
3722 static int i40e_vsi_control_rx(struct i40e_vsi
*vsi
, bool enable
)
3724 struct i40e_pf
*pf
= vsi
->back
;
3725 struct i40e_hw
*hw
= &pf
->hw
;
3726 int i
, j
, pf_q
, ret
= 0;
3729 pf_q
= vsi
->base_queue
;
3730 for (i
= 0; i
< vsi
->num_queue_pairs
; i
++, pf_q
++) {
3731 for (j
= 0; j
< 50; j
++) {
3732 rx_reg
= rd32(hw
, I40E_QRX_ENA(pf_q
));
3733 if (((rx_reg
>> I40E_QRX_ENA_QENA_REQ_SHIFT
) & 1) ==
3734 ((rx_reg
>> I40E_QRX_ENA_QENA_STAT_SHIFT
) & 1))
3736 usleep_range(1000, 2000);
3739 /* Skip if the queue is already in the requested state */
3740 if (enable
== !!(rx_reg
& I40E_QRX_ENA_QENA_STAT_MASK
))
3743 /* turn on/off the queue */
3745 rx_reg
|= I40E_QRX_ENA_QENA_REQ_MASK
;
3747 rx_reg
&= ~I40E_QRX_ENA_QENA_REQ_MASK
;
3748 wr32(hw
, I40E_QRX_ENA(pf_q
), rx_reg
);
3750 /* wait for the change to finish */
3751 ret
= i40e_pf_rxq_wait(pf
, pf_q
, enable
);
3753 dev_info(&pf
->pdev
->dev
,
3754 "VSI seid %d Rx ring %d %sable timeout\n",
3755 vsi
->seid
, pf_q
, (enable
? "en" : "dis"));
3764 * i40e_vsi_control_rings - Start or stop a VSI's rings
3765 * @vsi: the VSI being configured
3766 * @enable: start or stop the rings
3768 int i40e_vsi_control_rings(struct i40e_vsi
*vsi
, bool request
)
3772 /* do rx first for enable and last for disable */
3774 ret
= i40e_vsi_control_rx(vsi
, request
);
3777 ret
= i40e_vsi_control_tx(vsi
, request
);
3779 /* Ignore return value, we need to shutdown whatever we can */
3780 i40e_vsi_control_tx(vsi
, request
);
3781 i40e_vsi_control_rx(vsi
, request
);
3788 * i40e_vsi_free_irq - Free the irq association with the OS
3789 * @vsi: the VSI being configured
3791 static void i40e_vsi_free_irq(struct i40e_vsi
*vsi
)
3793 struct i40e_pf
*pf
= vsi
->back
;
3794 struct i40e_hw
*hw
= &pf
->hw
;
3795 int base
= vsi
->base_vector
;
3799 if (pf
->flags
& I40E_FLAG_MSIX_ENABLED
) {
3800 if (!vsi
->q_vectors
)
3803 if (!vsi
->irqs_ready
)
3806 vsi
->irqs_ready
= false;
3807 for (i
= 0; i
< vsi
->num_q_vectors
; i
++) {
3808 u16 vector
= i
+ base
;
3810 /* free only the irqs that were actually requested */
3811 if (!vsi
->q_vectors
[i
] ||
3812 !vsi
->q_vectors
[i
]->num_ringpairs
)
3815 /* clear the affinity_mask in the IRQ descriptor */
3816 irq_set_affinity_hint(pf
->msix_entries
[vector
].vector
,
3818 free_irq(pf
->msix_entries
[vector
].vector
,
3821 /* Tear down the interrupt queue link list
3823 * We know that they come in pairs and always
3824 * the Rx first, then the Tx. To clear the
3825 * link list, stick the EOL value into the
3826 * next_q field of the registers.
3828 val
= rd32(hw
, I40E_PFINT_LNKLSTN(vector
- 1));
3829 qp
= (val
& I40E_PFINT_LNKLSTN_FIRSTQ_INDX_MASK
)
3830 >> I40E_PFINT_LNKLSTN_FIRSTQ_INDX_SHIFT
;
3831 val
|= I40E_QUEUE_END_OF_LIST
3832 << I40E_PFINT_LNKLSTN_FIRSTQ_INDX_SHIFT
;
3833 wr32(hw
, I40E_PFINT_LNKLSTN(vector
- 1), val
);
3835 while (qp
!= I40E_QUEUE_END_OF_LIST
) {
3838 val
= rd32(hw
, I40E_QINT_RQCTL(qp
));
3840 val
&= ~(I40E_QINT_RQCTL_MSIX_INDX_MASK
|
3841 I40E_QINT_RQCTL_MSIX0_INDX_MASK
|
3842 I40E_QINT_RQCTL_CAUSE_ENA_MASK
|
3843 I40E_QINT_RQCTL_INTEVENT_MASK
);
3845 val
|= (I40E_QINT_RQCTL_ITR_INDX_MASK
|
3846 I40E_QINT_RQCTL_NEXTQ_INDX_MASK
);
3848 wr32(hw
, I40E_QINT_RQCTL(qp
), val
);
3850 val
= rd32(hw
, I40E_QINT_TQCTL(qp
));
3852 next
= (val
& I40E_QINT_TQCTL_NEXTQ_INDX_MASK
)
3853 >> I40E_QINT_TQCTL_NEXTQ_INDX_SHIFT
;
3855 val
&= ~(I40E_QINT_TQCTL_MSIX_INDX_MASK
|
3856 I40E_QINT_TQCTL_MSIX0_INDX_MASK
|
3857 I40E_QINT_TQCTL_CAUSE_ENA_MASK
|
3858 I40E_QINT_TQCTL_INTEVENT_MASK
);
3860 val
|= (I40E_QINT_TQCTL_ITR_INDX_MASK
|
3861 I40E_QINT_TQCTL_NEXTQ_INDX_MASK
);
3863 wr32(hw
, I40E_QINT_TQCTL(qp
), val
);
3868 free_irq(pf
->pdev
->irq
, pf
);
3870 val
= rd32(hw
, I40E_PFINT_LNKLST0
);
3871 qp
= (val
& I40E_PFINT_LNKLSTN_FIRSTQ_INDX_MASK
)
3872 >> I40E_PFINT_LNKLSTN_FIRSTQ_INDX_SHIFT
;
3873 val
|= I40E_QUEUE_END_OF_LIST
3874 << I40E_PFINT_LNKLST0_FIRSTQ_INDX_SHIFT
;
3875 wr32(hw
, I40E_PFINT_LNKLST0
, val
);
3877 val
= rd32(hw
, I40E_QINT_RQCTL(qp
));
3878 val
&= ~(I40E_QINT_RQCTL_MSIX_INDX_MASK
|
3879 I40E_QINT_RQCTL_MSIX0_INDX_MASK
|
3880 I40E_QINT_RQCTL_CAUSE_ENA_MASK
|
3881 I40E_QINT_RQCTL_INTEVENT_MASK
);
3883 val
|= (I40E_QINT_RQCTL_ITR_INDX_MASK
|
3884 I40E_QINT_RQCTL_NEXTQ_INDX_MASK
);
3886 wr32(hw
, I40E_QINT_RQCTL(qp
), val
);
3888 val
= rd32(hw
, I40E_QINT_TQCTL(qp
));
3890 val
&= ~(I40E_QINT_TQCTL_MSIX_INDX_MASK
|
3891 I40E_QINT_TQCTL_MSIX0_INDX_MASK
|
3892 I40E_QINT_TQCTL_CAUSE_ENA_MASK
|
3893 I40E_QINT_TQCTL_INTEVENT_MASK
);
3895 val
|= (I40E_QINT_TQCTL_ITR_INDX_MASK
|
3896 I40E_QINT_TQCTL_NEXTQ_INDX_MASK
);
3898 wr32(hw
, I40E_QINT_TQCTL(qp
), val
);
3903 * i40e_free_q_vector - Free memory allocated for specific interrupt vector
3904 * @vsi: the VSI being configured
3905 * @v_idx: Index of vector to be freed
3907 * This function frees the memory allocated to the q_vector. In addition if
3908 * NAPI is enabled it will delete any references to the NAPI struct prior
3909 * to freeing the q_vector.
3911 static void i40e_free_q_vector(struct i40e_vsi
*vsi
, int v_idx
)
3913 struct i40e_q_vector
*q_vector
= vsi
->q_vectors
[v_idx
];
3914 struct i40e_ring
*ring
;
3919 /* disassociate q_vector from rings */
3920 i40e_for_each_ring(ring
, q_vector
->tx
)
3921 ring
->q_vector
= NULL
;
3923 i40e_for_each_ring(ring
, q_vector
->rx
)
3924 ring
->q_vector
= NULL
;
3926 /* only VSI w/ an associated netdev is set up w/ NAPI */
3928 netif_napi_del(&q_vector
->napi
);
3930 vsi
->q_vectors
[v_idx
] = NULL
;
3932 kfree_rcu(q_vector
, rcu
);
3936 * i40e_vsi_free_q_vectors - Free memory allocated for interrupt vectors
3937 * @vsi: the VSI being un-configured
3939 * This frees the memory allocated to the q_vectors and
3940 * deletes references to the NAPI struct.
3942 static void i40e_vsi_free_q_vectors(struct i40e_vsi
*vsi
)
3946 for (v_idx
= 0; v_idx
< vsi
->num_q_vectors
; v_idx
++)
3947 i40e_free_q_vector(vsi
, v_idx
);
3951 * i40e_reset_interrupt_capability - Disable interrupt setup in OS
3952 * @pf: board private structure
3954 static void i40e_reset_interrupt_capability(struct i40e_pf
*pf
)
3956 /* If we're in Legacy mode, the interrupt was cleaned in vsi_close */
3957 if (pf
->flags
& I40E_FLAG_MSIX_ENABLED
) {
3958 pci_disable_msix(pf
->pdev
);
3959 kfree(pf
->msix_entries
);
3960 pf
->msix_entries
= NULL
;
3961 kfree(pf
->irq_pile
);
3962 pf
->irq_pile
= NULL
;
3963 } else if (pf
->flags
& I40E_FLAG_MSI_ENABLED
) {
3964 pci_disable_msi(pf
->pdev
);
3966 pf
->flags
&= ~(I40E_FLAG_MSIX_ENABLED
| I40E_FLAG_MSI_ENABLED
);
3970 * i40e_clear_interrupt_scheme - Clear the current interrupt scheme settings
3971 * @pf: board private structure
3973 * We go through and clear interrupt specific resources and reset the structure
3974 * to pre-load conditions
3976 static void i40e_clear_interrupt_scheme(struct i40e_pf
*pf
)
3980 i40e_stop_misc_vector(pf
);
3981 if (pf
->flags
& I40E_FLAG_MSIX_ENABLED
) {
3982 synchronize_irq(pf
->msix_entries
[0].vector
);
3983 free_irq(pf
->msix_entries
[0].vector
, pf
);
3986 i40e_put_lump(pf
->irq_pile
, 0, I40E_PILE_VALID_BIT
-1);
3987 for (i
= 0; i
< pf
->num_alloc_vsi
; i
++)
3989 i40e_vsi_free_q_vectors(pf
->vsi
[i
]);
3990 i40e_reset_interrupt_capability(pf
);
3994 * i40e_napi_enable_all - Enable NAPI for all q_vectors in the VSI
3995 * @vsi: the VSI being configured
3997 static void i40e_napi_enable_all(struct i40e_vsi
*vsi
)
4004 for (q_idx
= 0; q_idx
< vsi
->num_q_vectors
; q_idx
++)
4005 napi_enable(&vsi
->q_vectors
[q_idx
]->napi
);
4009 * i40e_napi_disable_all - Disable NAPI for all q_vectors in the VSI
4010 * @vsi: the VSI being configured
4012 static void i40e_napi_disable_all(struct i40e_vsi
*vsi
)
4019 for (q_idx
= 0; q_idx
< vsi
->num_q_vectors
; q_idx
++)
4020 napi_disable(&vsi
->q_vectors
[q_idx
]->napi
);
4024 * i40e_vsi_close - Shut down a VSI
4025 * @vsi: the vsi to be quelled
4027 static void i40e_vsi_close(struct i40e_vsi
*vsi
)
4029 if (!test_and_set_bit(__I40E_DOWN
, &vsi
->state
))
4031 i40e_vsi_free_irq(vsi
);
4032 i40e_vsi_free_tx_resources(vsi
);
4033 i40e_vsi_free_rx_resources(vsi
);
4034 vsi
->current_netdev_flags
= 0;
4038 * i40e_quiesce_vsi - Pause a given VSI
4039 * @vsi: the VSI being paused
4041 static void i40e_quiesce_vsi(struct i40e_vsi
*vsi
)
4043 if (test_bit(__I40E_DOWN
, &vsi
->state
))
4046 /* No need to disable FCoE VSI when Tx suspended */
4047 if ((test_bit(__I40E_PORT_TX_SUSPENDED
, &vsi
->back
->state
)) &&
4048 vsi
->type
== I40E_VSI_FCOE
) {
4049 dev_dbg(&vsi
->back
->pdev
->dev
,
4050 "VSI seid %d skipping FCoE VSI disable\n", vsi
->seid
);
4054 set_bit(__I40E_NEEDS_RESTART
, &vsi
->state
);
4055 if (vsi
->netdev
&& netif_running(vsi
->netdev
)) {
4056 vsi
->netdev
->netdev_ops
->ndo_stop(vsi
->netdev
);
4058 i40e_vsi_close(vsi
);
4063 * i40e_unquiesce_vsi - Resume a given VSI
4064 * @vsi: the VSI being resumed
4066 static void i40e_unquiesce_vsi(struct i40e_vsi
*vsi
)
4068 if (!test_bit(__I40E_NEEDS_RESTART
, &vsi
->state
))
4071 clear_bit(__I40E_NEEDS_RESTART
, &vsi
->state
);
4072 if (vsi
->netdev
&& netif_running(vsi
->netdev
))
4073 vsi
->netdev
->netdev_ops
->ndo_open(vsi
->netdev
);
4075 i40e_vsi_open(vsi
); /* this clears the DOWN bit */
4079 * i40e_pf_quiesce_all_vsi - Pause all VSIs on a PF
4082 static void i40e_pf_quiesce_all_vsi(struct i40e_pf
*pf
)
4086 for (v
= 0; v
< pf
->num_alloc_vsi
; v
++) {
4088 i40e_quiesce_vsi(pf
->vsi
[v
]);
4093 * i40e_pf_unquiesce_all_vsi - Resume all VSIs on a PF
4096 static void i40e_pf_unquiesce_all_vsi(struct i40e_pf
*pf
)
4100 for (v
= 0; v
< pf
->num_alloc_vsi
; v
++) {
4102 i40e_unquiesce_vsi(pf
->vsi
[v
]);
4106 #ifdef CONFIG_I40E_DCB
4108 * i40e_vsi_wait_txq_disabled - Wait for VSI's queues to be disabled
4109 * @vsi: the VSI being configured
4111 * This function waits for the given VSI's Tx queues to be disabled.
4113 static int i40e_vsi_wait_txq_disabled(struct i40e_vsi
*vsi
)
4115 struct i40e_pf
*pf
= vsi
->back
;
4118 pf_q
= vsi
->base_queue
;
4119 for (i
= 0; i
< vsi
->num_queue_pairs
; i
++, pf_q
++) {
4120 /* Check and wait for the disable status of the queue */
4121 ret
= i40e_pf_txq_wait(pf
, pf_q
, false);
4123 dev_info(&pf
->pdev
->dev
,
4124 "VSI seid %d Tx ring %d disable timeout\n",
4134 * i40e_pf_wait_txq_disabled - Wait for all queues of PF VSIs to be disabled
4137 * This function waits for the Tx queues to be in disabled state for all the
4138 * VSIs that are managed by this PF.
4140 static int i40e_pf_wait_txq_disabled(struct i40e_pf
*pf
)
4144 for (v
= 0; v
< pf
->hw
.func_caps
.num_vsis
; v
++) {
4145 /* No need to wait for FCoE VSI queues */
4146 if (pf
->vsi
[v
] && pf
->vsi
[v
]->type
!= I40E_VSI_FCOE
) {
4147 ret
= i40e_vsi_wait_txq_disabled(pf
->vsi
[v
]);
4159 * i40e_detect_recover_hung_queue - Function to detect and recover hung_queue
4160 * @q_idx: TX queue number
4161 * @vsi: Pointer to VSI struct
4163 * This function checks specified queue for given VSI. Detects hung condition.
4164 * Sets hung bit since it is two step process. Before next run of service task
4165 * if napi_poll runs, it reset 'hung' bit for respective q_vector. If not,
4166 * hung condition remain unchanged and during subsequent run, this function
4167 * issues SW interrupt to recover from hung condition.
4169 static void i40e_detect_recover_hung_queue(int q_idx
, struct i40e_vsi
*vsi
)
4171 struct i40e_ring
*tx_ring
= NULL
;
4173 u32 head
, val
, tx_pending
;
4178 /* now that we have an index, find the tx_ring struct */
4179 for (i
= 0; i
< vsi
->num_queue_pairs
; i
++) {
4180 if (vsi
->tx_rings
[i
] && vsi
->tx_rings
[i
]->desc
) {
4181 if (q_idx
== vsi
->tx_rings
[i
]->queue_index
) {
4182 tx_ring
= vsi
->tx_rings
[i
];
4191 /* Read interrupt register */
4192 if (pf
->flags
& I40E_FLAG_MSIX_ENABLED
)
4194 I40E_PFINT_DYN_CTLN(tx_ring
->q_vector
->v_idx
+
4195 tx_ring
->vsi
->base_vector
- 1));
4197 val
= rd32(&pf
->hw
, I40E_PFINT_DYN_CTL0
);
4199 head
= i40e_get_head(tx_ring
);
4201 tx_pending
= i40e_get_tx_pending(tx_ring
);
4203 /* Interrupts are disabled and TX pending is non-zero,
4204 * trigger the SW interrupt (don't wait). Worst case
4205 * there will be one extra interrupt which may result
4206 * into not cleaning any queues because queues are cleaned.
4208 if (tx_pending
&& (!(val
& I40E_PFINT_DYN_CTLN_INTENA_MASK
)))
4209 i40e_force_wb(vsi
, tx_ring
->q_vector
);
4213 * i40e_detect_recover_hung - Function to detect and recover hung_queues
4214 * @pf: pointer to PF struct
4216 * LAN VSI has netdev and netdev has TX queues. This function is to check
4217 * each of those TX queues if they are hung, trigger recovery by issuing
4220 static void i40e_detect_recover_hung(struct i40e_pf
*pf
)
4222 struct net_device
*netdev
;
4223 struct i40e_vsi
*vsi
;
4226 /* Only for LAN VSI */
4227 vsi
= pf
->vsi
[pf
->lan_vsi
];
4232 /* Make sure, VSI state is not DOWN/RECOVERY_PENDING */
4233 if (test_bit(__I40E_DOWN
, &vsi
->back
->state
) ||
4234 test_bit(__I40E_RESET_RECOVERY_PENDING
, &vsi
->back
->state
))
4237 /* Make sure type is MAIN VSI */
4238 if (vsi
->type
!= I40E_VSI_MAIN
)
4241 netdev
= vsi
->netdev
;
4245 /* Bail out if netif_carrier is not OK */
4246 if (!netif_carrier_ok(netdev
))
4249 /* Go thru' TX queues for netdev */
4250 for (i
= 0; i
< netdev
->num_tx_queues
; i
++) {
4251 struct netdev_queue
*q
;
4253 q
= netdev_get_tx_queue(netdev
, i
);
4255 i40e_detect_recover_hung_queue(i
, vsi
);
4260 * i40e_get_iscsi_tc_map - Return TC map for iSCSI APP
4261 * @pf: pointer to PF
4263 * Get TC map for ISCSI PF type that will include iSCSI TC
4266 static u8
i40e_get_iscsi_tc_map(struct i40e_pf
*pf
)
4268 struct i40e_dcb_app_priority_table app
;
4269 struct i40e_hw
*hw
= &pf
->hw
;
4270 u8 enabled_tc
= 1; /* TC0 is always enabled */
4272 /* Get the iSCSI APP TLV */
4273 struct i40e_dcbx_config
*dcbcfg
= &hw
->local_dcbx_config
;
4275 for (i
= 0; i
< dcbcfg
->numapps
; i
++) {
4276 app
= dcbcfg
->app
[i
];
4277 if (app
.selector
== I40E_APP_SEL_TCPIP
&&
4278 app
.protocolid
== I40E_APP_PROTOID_ISCSI
) {
4279 tc
= dcbcfg
->etscfg
.prioritytable
[app
.priority
];
4280 enabled_tc
|= BIT_ULL(tc
);
4289 * i40e_dcb_get_num_tc - Get the number of TCs from DCBx config
4290 * @dcbcfg: the corresponding DCBx configuration structure
4292 * Return the number of TCs from given DCBx configuration
4294 static u8
i40e_dcb_get_num_tc(struct i40e_dcbx_config
*dcbcfg
)
4299 /* Scan the ETS Config Priority Table to find
4300 * traffic class enabled for a given priority
4301 * and use the traffic class index to get the
4302 * number of traffic classes enabled
4304 for (i
= 0; i
< I40E_MAX_USER_PRIORITY
; i
++) {
4305 if (dcbcfg
->etscfg
.prioritytable
[i
] > num_tc
)
4306 num_tc
= dcbcfg
->etscfg
.prioritytable
[i
];
4309 /* Traffic class index starts from zero so
4310 * increment to return the actual count
4316 * i40e_dcb_get_enabled_tc - Get enabled traffic classes
4317 * @dcbcfg: the corresponding DCBx configuration structure
4319 * Query the current DCB configuration and return the number of
4320 * traffic classes enabled from the given DCBX config
4322 static u8
i40e_dcb_get_enabled_tc(struct i40e_dcbx_config
*dcbcfg
)
4324 u8 num_tc
= i40e_dcb_get_num_tc(dcbcfg
);
4328 for (i
= 0; i
< num_tc
; i
++)
4329 enabled_tc
|= BIT(i
);
4335 * i40e_pf_get_num_tc - Get enabled traffic classes for PF
4336 * @pf: PF being queried
4338 * Return number of traffic classes enabled for the given PF
4340 static u8
i40e_pf_get_num_tc(struct i40e_pf
*pf
)
4342 struct i40e_hw
*hw
= &pf
->hw
;
4345 struct i40e_dcbx_config
*dcbcfg
= &hw
->local_dcbx_config
;
4347 /* If DCB is not enabled then always in single TC */
4348 if (!(pf
->flags
& I40E_FLAG_DCB_ENABLED
))
4351 /* SFP mode will be enabled for all TCs on port */
4352 if (!(pf
->flags
& I40E_FLAG_MFP_ENABLED
))
4353 return i40e_dcb_get_num_tc(dcbcfg
);
4355 /* MFP mode return count of enabled TCs for this PF */
4356 if (pf
->hw
.func_caps
.iscsi
)
4357 enabled_tc
= i40e_get_iscsi_tc_map(pf
);
4359 return 1; /* Only TC0 */
4361 /* At least have TC0 */
4362 enabled_tc
= (enabled_tc
? enabled_tc
: 0x1);
4363 for (i
= 0; i
< I40E_MAX_TRAFFIC_CLASS
; i
++) {
4364 if (enabled_tc
& BIT_ULL(i
))
4371 * i40e_pf_get_default_tc - Get bitmap for first enabled TC
4372 * @pf: PF being queried
4374 * Return a bitmap for first enabled traffic class for this PF.
4376 static u8
i40e_pf_get_default_tc(struct i40e_pf
*pf
)
4378 u8 enabled_tc
= pf
->hw
.func_caps
.enabled_tcmap
;
4382 return 0x1; /* TC0 */
4384 /* Find the first enabled TC */
4385 for (i
= 0; i
< I40E_MAX_TRAFFIC_CLASS
; i
++) {
4386 if (enabled_tc
& BIT_ULL(i
))
4394 * i40e_pf_get_pf_tc_map - Get bitmap for enabled traffic classes
4395 * @pf: PF being queried
4397 * Return a bitmap for enabled traffic classes for this PF.
4399 static u8
i40e_pf_get_tc_map(struct i40e_pf
*pf
)
4401 /* If DCB is not enabled for this PF then just return default TC */
4402 if (!(pf
->flags
& I40E_FLAG_DCB_ENABLED
))
4403 return i40e_pf_get_default_tc(pf
);
4405 /* SFP mode we want PF to be enabled for all TCs */
4406 if (!(pf
->flags
& I40E_FLAG_MFP_ENABLED
))
4407 return i40e_dcb_get_enabled_tc(&pf
->hw
.local_dcbx_config
);
4409 /* MFP enabled and iSCSI PF type */
4410 if (pf
->hw
.func_caps
.iscsi
)
4411 return i40e_get_iscsi_tc_map(pf
);
4413 return i40e_pf_get_default_tc(pf
);
4417 * i40e_vsi_get_bw_info - Query VSI BW Information
4418 * @vsi: the VSI being queried
4420 * Returns 0 on success, negative value on failure
4422 static int i40e_vsi_get_bw_info(struct i40e_vsi
*vsi
)
4424 struct i40e_aqc_query_vsi_ets_sla_config_resp bw_ets_config
= {0};
4425 struct i40e_aqc_query_vsi_bw_config_resp bw_config
= {0};
4426 struct i40e_pf
*pf
= vsi
->back
;
4427 struct i40e_hw
*hw
= &pf
->hw
;
4432 /* Get the VSI level BW configuration */
4433 ret
= i40e_aq_query_vsi_bw_config(hw
, vsi
->seid
, &bw_config
, NULL
);
4435 dev_info(&pf
->pdev
->dev
,
4436 "couldn't get PF vsi bw config, err %s aq_err %s\n",
4437 i40e_stat_str(&pf
->hw
, ret
),
4438 i40e_aq_str(&pf
->hw
, pf
->hw
.aq
.asq_last_status
));
4442 /* Get the VSI level BW configuration per TC */
4443 ret
= i40e_aq_query_vsi_ets_sla_config(hw
, vsi
->seid
, &bw_ets_config
,
4446 dev_info(&pf
->pdev
->dev
,
4447 "couldn't get PF vsi ets bw config, err %s aq_err %s\n",
4448 i40e_stat_str(&pf
->hw
, ret
),
4449 i40e_aq_str(&pf
->hw
, pf
->hw
.aq
.asq_last_status
));
4453 if (bw_config
.tc_valid_bits
!= bw_ets_config
.tc_valid_bits
) {
4454 dev_info(&pf
->pdev
->dev
,
4455 "Enabled TCs mismatch from querying VSI BW info 0x%08x 0x%08x\n",
4456 bw_config
.tc_valid_bits
,
4457 bw_ets_config
.tc_valid_bits
);
4458 /* Still continuing */
4461 vsi
->bw_limit
= le16_to_cpu(bw_config
.port_bw_limit
);
4462 vsi
->bw_max_quanta
= bw_config
.max_bw
;
4463 tc_bw_max
= le16_to_cpu(bw_ets_config
.tc_bw_max
[0]) |
4464 (le16_to_cpu(bw_ets_config
.tc_bw_max
[1]) << 16);
4465 for (i
= 0; i
< I40E_MAX_TRAFFIC_CLASS
; i
++) {
4466 vsi
->bw_ets_share_credits
[i
] = bw_ets_config
.share_credits
[i
];
4467 vsi
->bw_ets_limit_credits
[i
] =
4468 le16_to_cpu(bw_ets_config
.credits
[i
]);
4469 /* 3 bits out of 4 for each TC */
4470 vsi
->bw_ets_max_quanta
[i
] = (u8
)((tc_bw_max
>> (i
*4)) & 0x7);
4477 * i40e_vsi_configure_bw_alloc - Configure VSI BW allocation per TC
4478 * @vsi: the VSI being configured
4479 * @enabled_tc: TC bitmap
4480 * @bw_credits: BW shared credits per TC
4482 * Returns 0 on success, negative value on failure
4484 static int i40e_vsi_configure_bw_alloc(struct i40e_vsi
*vsi
, u8 enabled_tc
,
4487 struct i40e_aqc_configure_vsi_tc_bw_data bw_data
;
4491 bw_data
.tc_valid_bits
= enabled_tc
;
4492 for (i
= 0; i
< I40E_MAX_TRAFFIC_CLASS
; i
++)
4493 bw_data
.tc_bw_credits
[i
] = bw_share
[i
];
4495 ret
= i40e_aq_config_vsi_tc_bw(&vsi
->back
->hw
, vsi
->seid
, &bw_data
,
4498 dev_info(&vsi
->back
->pdev
->dev
,
4499 "AQ command Config VSI BW allocation per TC failed = %d\n",
4500 vsi
->back
->hw
.aq
.asq_last_status
);
4504 for (i
= 0; i
< I40E_MAX_TRAFFIC_CLASS
; i
++)
4505 vsi
->info
.qs_handle
[i
] = bw_data
.qs_handles
[i
];
4511 * i40e_vsi_config_netdev_tc - Setup the netdev TC configuration
4512 * @vsi: the VSI being configured
4513 * @enabled_tc: TC map to be enabled
4516 static void i40e_vsi_config_netdev_tc(struct i40e_vsi
*vsi
, u8 enabled_tc
)
4518 struct net_device
*netdev
= vsi
->netdev
;
4519 struct i40e_pf
*pf
= vsi
->back
;
4520 struct i40e_hw
*hw
= &pf
->hw
;
4523 struct i40e_dcbx_config
*dcbcfg
= &hw
->local_dcbx_config
;
4529 netdev_reset_tc(netdev
);
4533 /* Set up actual enabled TCs on the VSI */
4534 if (netdev_set_num_tc(netdev
, vsi
->tc_config
.numtc
))
4537 /* set per TC queues for the VSI */
4538 for (i
= 0; i
< I40E_MAX_TRAFFIC_CLASS
; i
++) {
4539 /* Only set TC queues for enabled tcs
4541 * e.g. For a VSI that has TC0 and TC3 enabled the
4542 * enabled_tc bitmap would be 0x00001001; the driver
4543 * will set the numtc for netdev as 2 that will be
4544 * referenced by the netdev layer as TC 0 and 1.
4546 if (vsi
->tc_config
.enabled_tc
& BIT_ULL(i
))
4547 netdev_set_tc_queue(netdev
,
4548 vsi
->tc_config
.tc_info
[i
].netdev_tc
,
4549 vsi
->tc_config
.tc_info
[i
].qcount
,
4550 vsi
->tc_config
.tc_info
[i
].qoffset
);
4553 /* Assign UP2TC map for the VSI */
4554 for (i
= 0; i
< I40E_MAX_USER_PRIORITY
; i
++) {
4555 /* Get the actual TC# for the UP */
4556 u8 ets_tc
= dcbcfg
->etscfg
.prioritytable
[i
];
4557 /* Get the mapped netdev TC# for the UP */
4558 netdev_tc
= vsi
->tc_config
.tc_info
[ets_tc
].netdev_tc
;
4559 netdev_set_prio_tc_map(netdev
, i
, netdev_tc
);
4564 * i40e_vsi_update_queue_map - Update our copy of VSi info with new queue map
4565 * @vsi: the VSI being configured
4566 * @ctxt: the ctxt buffer returned from AQ VSI update param command
4568 static void i40e_vsi_update_queue_map(struct i40e_vsi
*vsi
,
4569 struct i40e_vsi_context
*ctxt
)
4571 /* copy just the sections touched not the entire info
4572 * since not all sections are valid as returned by
4575 vsi
->info
.mapping_flags
= ctxt
->info
.mapping_flags
;
4576 memcpy(&vsi
->info
.queue_mapping
,
4577 &ctxt
->info
.queue_mapping
, sizeof(vsi
->info
.queue_mapping
));
4578 memcpy(&vsi
->info
.tc_mapping
, ctxt
->info
.tc_mapping
,
4579 sizeof(vsi
->info
.tc_mapping
));
4583 * i40e_vsi_config_tc - Configure VSI Tx Scheduler for given TC map
4584 * @vsi: VSI to be configured
4585 * @enabled_tc: TC bitmap
4587 * This configures a particular VSI for TCs that are mapped to the
4588 * given TC bitmap. It uses default bandwidth share for TCs across
4589 * VSIs to configure TC for a particular VSI.
4592 * It is expected that the VSI queues have been quisced before calling
4595 static int i40e_vsi_config_tc(struct i40e_vsi
*vsi
, u8 enabled_tc
)
4597 u8 bw_share
[I40E_MAX_TRAFFIC_CLASS
] = {0};
4598 struct i40e_vsi_context ctxt
;
4602 /* Check if enabled_tc is same as existing or new TCs */
4603 if (vsi
->tc_config
.enabled_tc
== enabled_tc
)
4606 /* Enable ETS TCs with equal BW Share for now across all VSIs */
4607 for (i
= 0; i
< I40E_MAX_TRAFFIC_CLASS
; i
++) {
4608 if (enabled_tc
& BIT_ULL(i
))
4612 ret
= i40e_vsi_configure_bw_alloc(vsi
, enabled_tc
, bw_share
);
4614 dev_info(&vsi
->back
->pdev
->dev
,
4615 "Failed configuring TC map %d for VSI %d\n",
4616 enabled_tc
, vsi
->seid
);
4620 /* Update Queue Pairs Mapping for currently enabled UPs */
4621 ctxt
.seid
= vsi
->seid
;
4622 ctxt
.pf_num
= vsi
->back
->hw
.pf_id
;
4624 ctxt
.uplink_seid
= vsi
->uplink_seid
;
4625 ctxt
.info
= vsi
->info
;
4626 i40e_vsi_setup_queue_map(vsi
, &ctxt
, enabled_tc
, false);
4628 /* Update the VSI after updating the VSI queue-mapping information */
4629 ret
= i40e_aq_update_vsi_params(&vsi
->back
->hw
, &ctxt
, NULL
);
4631 dev_info(&vsi
->back
->pdev
->dev
,
4632 "Update vsi tc config failed, err %s aq_err %s\n",
4633 i40e_stat_str(&vsi
->back
->hw
, ret
),
4634 i40e_aq_str(&vsi
->back
->hw
,
4635 vsi
->back
->hw
.aq
.asq_last_status
));
4638 /* update the local VSI info with updated queue map */
4639 i40e_vsi_update_queue_map(vsi
, &ctxt
);
4640 vsi
->info
.valid_sections
= 0;
4642 /* Update current VSI BW information */
4643 ret
= i40e_vsi_get_bw_info(vsi
);
4645 dev_info(&vsi
->back
->pdev
->dev
,
4646 "Failed updating vsi bw info, err %s aq_err %s\n",
4647 i40e_stat_str(&vsi
->back
->hw
, ret
),
4648 i40e_aq_str(&vsi
->back
->hw
,
4649 vsi
->back
->hw
.aq
.asq_last_status
));
4653 /* Update the netdev TC setup */
4654 i40e_vsi_config_netdev_tc(vsi
, enabled_tc
);
4660 * i40e_veb_config_tc - Configure TCs for given VEB
4662 * @enabled_tc: TC bitmap
4664 * Configures given TC bitmap for VEB (switching) element
4666 int i40e_veb_config_tc(struct i40e_veb
*veb
, u8 enabled_tc
)
4668 struct i40e_aqc_configure_switching_comp_bw_config_data bw_data
= {0};
4669 struct i40e_pf
*pf
= veb
->pf
;
4673 /* No TCs or already enabled TCs just return */
4674 if (!enabled_tc
|| veb
->enabled_tc
== enabled_tc
)
4677 bw_data
.tc_valid_bits
= enabled_tc
;
4678 /* bw_data.absolute_credits is not set (relative) */
4680 /* Enable ETS TCs with equal BW Share for now */
4681 for (i
= 0; i
< I40E_MAX_TRAFFIC_CLASS
; i
++) {
4682 if (enabled_tc
& BIT_ULL(i
))
4683 bw_data
.tc_bw_share_credits
[i
] = 1;
4686 ret
= i40e_aq_config_switch_comp_bw_config(&pf
->hw
, veb
->seid
,
4689 dev_info(&pf
->pdev
->dev
,
4690 "VEB bw config failed, err %s aq_err %s\n",
4691 i40e_stat_str(&pf
->hw
, ret
),
4692 i40e_aq_str(&pf
->hw
, pf
->hw
.aq
.asq_last_status
));
4696 /* Update the BW information */
4697 ret
= i40e_veb_get_bw_info(veb
);
4699 dev_info(&pf
->pdev
->dev
,
4700 "Failed getting veb bw config, err %s aq_err %s\n",
4701 i40e_stat_str(&pf
->hw
, ret
),
4702 i40e_aq_str(&pf
->hw
, pf
->hw
.aq
.asq_last_status
));
4709 #ifdef CONFIG_I40E_DCB
4711 * i40e_dcb_reconfigure - Reconfigure all VEBs and VSIs
4714 * Reconfigure VEB/VSIs on a given PF; it is assumed that
4715 * the caller would've quiesce all the VSIs before calling
4718 static void i40e_dcb_reconfigure(struct i40e_pf
*pf
)
4724 /* Enable the TCs available on PF to all VEBs */
4725 tc_map
= i40e_pf_get_tc_map(pf
);
4726 for (v
= 0; v
< I40E_MAX_VEB
; v
++) {
4729 ret
= i40e_veb_config_tc(pf
->veb
[v
], tc_map
);
4731 dev_info(&pf
->pdev
->dev
,
4732 "Failed configuring TC for VEB seid=%d\n",
4734 /* Will try to configure as many components */
4738 /* Update each VSI */
4739 for (v
= 0; v
< pf
->num_alloc_vsi
; v
++) {
4743 /* - Enable all TCs for the LAN VSI
4745 * - For FCoE VSI only enable the TC configured
4746 * as per the APP TLV
4748 * - For all others keep them at TC0 for now
4750 if (v
== pf
->lan_vsi
)
4751 tc_map
= i40e_pf_get_tc_map(pf
);
4753 tc_map
= i40e_pf_get_default_tc(pf
);
4755 if (pf
->vsi
[v
]->type
== I40E_VSI_FCOE
)
4756 tc_map
= i40e_get_fcoe_tc_map(pf
);
4757 #endif /* #ifdef I40E_FCOE */
4759 ret
= i40e_vsi_config_tc(pf
->vsi
[v
], tc_map
);
4761 dev_info(&pf
->pdev
->dev
,
4762 "Failed configuring TC for VSI seid=%d\n",
4764 /* Will try to configure as many components */
4766 /* Re-configure VSI vectors based on updated TC map */
4767 i40e_vsi_map_rings_to_vectors(pf
->vsi
[v
]);
4768 if (pf
->vsi
[v
]->netdev
)
4769 i40e_dcbnl_set_all(pf
->vsi
[v
]);
4775 * i40e_resume_port_tx - Resume port Tx
4778 * Resume a port's Tx and issue a PF reset in case of failure to
4781 static int i40e_resume_port_tx(struct i40e_pf
*pf
)
4783 struct i40e_hw
*hw
= &pf
->hw
;
4786 ret
= i40e_aq_resume_port_tx(hw
, NULL
);
4788 dev_info(&pf
->pdev
->dev
,
4789 "Resume Port Tx failed, err %s aq_err %s\n",
4790 i40e_stat_str(&pf
->hw
, ret
),
4791 i40e_aq_str(&pf
->hw
, pf
->hw
.aq
.asq_last_status
));
4792 /* Schedule PF reset to recover */
4793 set_bit(__I40E_PF_RESET_REQUESTED
, &pf
->state
);
4794 i40e_service_event_schedule(pf
);
4801 * i40e_init_pf_dcb - Initialize DCB configuration
4802 * @pf: PF being configured
4804 * Query the current DCB configuration and cache it
4805 * in the hardware structure
4807 static int i40e_init_pf_dcb(struct i40e_pf
*pf
)
4809 struct i40e_hw
*hw
= &pf
->hw
;
4812 /* Do not enable DCB for SW1 and SW2 images even if the FW is capable */
4813 if (((pf
->hw
.aq
.fw_maj_ver
== 4) && (pf
->hw
.aq
.fw_min_ver
< 33)) ||
4814 (pf
->hw
.aq
.fw_maj_ver
< 4))
4817 /* Get the initial DCB configuration */
4818 err
= i40e_init_dcb(hw
);
4820 /* Device/Function is not DCBX capable */
4821 if ((!hw
->func_caps
.dcb
) ||
4822 (hw
->dcbx_status
== I40E_DCBX_STATUS_DISABLED
)) {
4823 dev_info(&pf
->pdev
->dev
,
4824 "DCBX offload is not supported or is disabled for this PF.\n");
4826 if (pf
->flags
& I40E_FLAG_MFP_ENABLED
)
4830 /* When status is not DISABLED then DCBX in FW */
4831 pf
->dcbx_cap
= DCB_CAP_DCBX_LLD_MANAGED
|
4832 DCB_CAP_DCBX_VER_IEEE
;
4834 pf
->flags
|= I40E_FLAG_DCB_CAPABLE
;
4835 /* Enable DCB tagging only when more than one TC */
4836 if (i40e_dcb_get_num_tc(&hw
->local_dcbx_config
) > 1)
4837 pf
->flags
|= I40E_FLAG_DCB_ENABLED
;
4838 dev_dbg(&pf
->pdev
->dev
,
4839 "DCBX offload is supported for this PF.\n");
4842 dev_info(&pf
->pdev
->dev
,
4843 "Query for DCB configuration failed, err %s aq_err %s\n",
4844 i40e_stat_str(&pf
->hw
, err
),
4845 i40e_aq_str(&pf
->hw
, pf
->hw
.aq
.asq_last_status
));
4851 #endif /* CONFIG_I40E_DCB */
4852 #define SPEED_SIZE 14
4855 * i40e_print_link_message - print link up or down
4856 * @vsi: the VSI for which link needs a message
4858 static void i40e_print_link_message(struct i40e_vsi
*vsi
, bool isup
)
4860 char speed
[SPEED_SIZE
] = "Unknown";
4861 char fc
[FC_SIZE
] = "RX/TX";
4864 netdev_info(vsi
->netdev
, "NIC Link is Down\n");
4868 /* Warn user if link speed on NPAR enabled partition is not at
4871 if (vsi
->back
->hw
.func_caps
.npar_enable
&&
4872 (vsi
->back
->hw
.phy
.link_info
.link_speed
== I40E_LINK_SPEED_1GB
||
4873 vsi
->back
->hw
.phy
.link_info
.link_speed
== I40E_LINK_SPEED_100MB
))
4874 netdev_warn(vsi
->netdev
,
4875 "The partition detected link speed that is less than 10Gbps\n");
4877 switch (vsi
->back
->hw
.phy
.link_info
.link_speed
) {
4878 case I40E_LINK_SPEED_40GB
:
4879 strlcpy(speed
, "40 Gbps", SPEED_SIZE
);
4881 case I40E_LINK_SPEED_20GB
:
4882 strncpy(speed
, "20 Gbps", SPEED_SIZE
);
4884 case I40E_LINK_SPEED_10GB
:
4885 strlcpy(speed
, "10 Gbps", SPEED_SIZE
);
4887 case I40E_LINK_SPEED_1GB
:
4888 strlcpy(speed
, "1000 Mbps", SPEED_SIZE
);
4890 case I40E_LINK_SPEED_100MB
:
4891 strncpy(speed
, "100 Mbps", SPEED_SIZE
);
4897 switch (vsi
->back
->hw
.fc
.current_mode
) {
4899 strlcpy(fc
, "RX/TX", FC_SIZE
);
4901 case I40E_FC_TX_PAUSE
:
4902 strlcpy(fc
, "TX", FC_SIZE
);
4904 case I40E_FC_RX_PAUSE
:
4905 strlcpy(fc
, "RX", FC_SIZE
);
4908 strlcpy(fc
, "None", FC_SIZE
);
4912 netdev_info(vsi
->netdev
, "NIC Link is Up %s Full Duplex, Flow Control: %s\n",
4917 * i40e_up_complete - Finish the last steps of bringing up a connection
4918 * @vsi: the VSI being configured
4920 static int i40e_up_complete(struct i40e_vsi
*vsi
)
4922 struct i40e_pf
*pf
= vsi
->back
;
4925 if (pf
->flags
& I40E_FLAG_MSIX_ENABLED
)
4926 i40e_vsi_configure_msix(vsi
);
4928 i40e_configure_msi_and_legacy(vsi
);
4931 err
= i40e_vsi_control_rings(vsi
, true);
4935 clear_bit(__I40E_DOWN
, &vsi
->state
);
4936 i40e_napi_enable_all(vsi
);
4937 i40e_vsi_enable_irq(vsi
);
4939 if ((pf
->hw
.phy
.link_info
.link_info
& I40E_AQ_LINK_UP
) &&
4941 i40e_print_link_message(vsi
, true);
4942 netif_tx_start_all_queues(vsi
->netdev
);
4943 netif_carrier_on(vsi
->netdev
);
4944 } else if (vsi
->netdev
) {
4945 i40e_print_link_message(vsi
, false);
4946 /* need to check for qualified module here*/
4947 if ((pf
->hw
.phy
.link_info
.link_info
&
4948 I40E_AQ_MEDIA_AVAILABLE
) &&
4949 (!(pf
->hw
.phy
.link_info
.an_info
&
4950 I40E_AQ_QUALIFIED_MODULE
)))
4951 netdev_err(vsi
->netdev
,
4952 "the driver failed to link because an unqualified module was detected.");
4955 /* replay FDIR SB filters */
4956 if (vsi
->type
== I40E_VSI_FDIR
) {
4957 /* reset fd counters */
4958 pf
->fd_add_err
= pf
->fd_atr_cnt
= 0;
4959 if (pf
->fd_tcp_rule
> 0) {
4960 pf
->flags
&= ~I40E_FLAG_FD_ATR_ENABLED
;
4961 if (I40E_DEBUG_FD
& pf
->hw
.debug_mask
)
4962 dev_info(&pf
->pdev
->dev
, "Forcing ATR off, sideband rules for TCP/IPv4 exist\n");
4963 pf
->fd_tcp_rule
= 0;
4965 i40e_fdir_filter_restore(vsi
);
4967 i40e_service_event_schedule(pf
);
4973 * i40e_vsi_reinit_locked - Reset the VSI
4974 * @vsi: the VSI being configured
4976 * Rebuild the ring structs after some configuration
4977 * has changed, e.g. MTU size.
4979 static void i40e_vsi_reinit_locked(struct i40e_vsi
*vsi
)
4981 struct i40e_pf
*pf
= vsi
->back
;
4983 WARN_ON(in_interrupt());
4984 while (test_and_set_bit(__I40E_CONFIG_BUSY
, &pf
->state
))
4985 usleep_range(1000, 2000);
4988 /* Give a VF some time to respond to the reset. The
4989 * two second wait is based upon the watchdog cycle in
4992 if (vsi
->type
== I40E_VSI_SRIOV
)
4995 clear_bit(__I40E_CONFIG_BUSY
, &pf
->state
);
4999 * i40e_up - Bring the connection back up after being down
5000 * @vsi: the VSI being configured
5002 int i40e_up(struct i40e_vsi
*vsi
)
5006 err
= i40e_vsi_configure(vsi
);
5008 err
= i40e_up_complete(vsi
);
5014 * i40e_down - Shutdown the connection processing
5015 * @vsi: the VSI being stopped
5017 void i40e_down(struct i40e_vsi
*vsi
)
5021 /* It is assumed that the caller of this function
5022 * sets the vsi->state __I40E_DOWN bit.
5025 netif_carrier_off(vsi
->netdev
);
5026 netif_tx_disable(vsi
->netdev
);
5028 i40e_vsi_disable_irq(vsi
);
5029 i40e_vsi_control_rings(vsi
, false);
5030 i40e_napi_disable_all(vsi
);
5032 for (i
= 0; i
< vsi
->num_queue_pairs
; i
++) {
5033 i40e_clean_tx_ring(vsi
->tx_rings
[i
]);
5034 i40e_clean_rx_ring(vsi
->rx_rings
[i
]);
5039 * i40e_setup_tc - configure multiple traffic classes
5040 * @netdev: net device to configure
5041 * @tc: number of traffic classes to enable
5044 int i40e_setup_tc(struct net_device
*netdev
, u8 tc
)
5046 static int i40e_setup_tc(struct net_device
*netdev
, u8 tc
)
5049 struct i40e_netdev_priv
*np
= netdev_priv(netdev
);
5050 struct i40e_vsi
*vsi
= np
->vsi
;
5051 struct i40e_pf
*pf
= vsi
->back
;
5056 /* Check if DCB enabled to continue */
5057 if (!(pf
->flags
& I40E_FLAG_DCB_ENABLED
)) {
5058 netdev_info(netdev
, "DCB is not enabled for adapter\n");
5062 /* Check if MFP enabled */
5063 if (pf
->flags
& I40E_FLAG_MFP_ENABLED
) {
5064 netdev_info(netdev
, "Configuring TC not supported in MFP mode\n");
5068 /* Check whether tc count is within enabled limit */
5069 if (tc
> i40e_pf_get_num_tc(pf
)) {
5070 netdev_info(netdev
, "TC count greater than enabled on link for adapter\n");
5074 /* Generate TC map for number of tc requested */
5075 for (i
= 0; i
< tc
; i
++)
5076 enabled_tc
|= BIT_ULL(i
);
5078 /* Requesting same TC configuration as already enabled */
5079 if (enabled_tc
== vsi
->tc_config
.enabled_tc
)
5082 /* Quiesce VSI queues */
5083 i40e_quiesce_vsi(vsi
);
5085 /* Configure VSI for enabled TCs */
5086 ret
= i40e_vsi_config_tc(vsi
, enabled_tc
);
5088 netdev_info(netdev
, "Failed configuring TC for VSI seid=%d\n",
5094 i40e_unquiesce_vsi(vsi
);
5101 * i40e_open - Called when a network interface is made active
5102 * @netdev: network interface device structure
5104 * The open entry point is called when a network interface is made
5105 * active by the system (IFF_UP). At this point all resources needed
5106 * for transmit and receive operations are allocated, the interrupt
5107 * handler is registered with the OS, the netdev watchdog subtask is
5108 * enabled, and the stack is notified that the interface is ready.
5110 * Returns 0 on success, negative value on failure
5112 int i40e_open(struct net_device
*netdev
)
5114 struct i40e_netdev_priv
*np
= netdev_priv(netdev
);
5115 struct i40e_vsi
*vsi
= np
->vsi
;
5116 struct i40e_pf
*pf
= vsi
->back
;
5119 /* disallow open during test or if eeprom is broken */
5120 if (test_bit(__I40E_TESTING
, &pf
->state
) ||
5121 test_bit(__I40E_BAD_EEPROM
, &pf
->state
))
5124 netif_carrier_off(netdev
);
5126 err
= i40e_vsi_open(vsi
);
5130 /* configure global TSO hardware offload settings */
5131 wr32(&pf
->hw
, I40E_GLLAN_TSOMSK_F
, be32_to_cpu(TCP_FLAG_PSH
|
5132 TCP_FLAG_FIN
) >> 16);
5133 wr32(&pf
->hw
, I40E_GLLAN_TSOMSK_M
, be32_to_cpu(TCP_FLAG_PSH
|
5135 TCP_FLAG_CWR
) >> 16);
5136 wr32(&pf
->hw
, I40E_GLLAN_TSOMSK_L
, be32_to_cpu(TCP_FLAG_CWR
) >> 16);
5138 #ifdef CONFIG_I40E_VXLAN
5139 vxlan_get_rx_port(netdev
);
5147 * @vsi: the VSI to open
5149 * Finish initialization of the VSI.
5151 * Returns 0 on success, negative value on failure
5153 int i40e_vsi_open(struct i40e_vsi
*vsi
)
5155 struct i40e_pf
*pf
= vsi
->back
;
5156 char int_name
[I40E_INT_NAME_STR_LEN
];
5159 /* allocate descriptors */
5160 err
= i40e_vsi_setup_tx_resources(vsi
);
5163 err
= i40e_vsi_setup_rx_resources(vsi
);
5167 err
= i40e_vsi_configure(vsi
);
5172 snprintf(int_name
, sizeof(int_name
) - 1, "%s-%s",
5173 dev_driver_string(&pf
->pdev
->dev
), vsi
->netdev
->name
);
5174 err
= i40e_vsi_request_irq(vsi
, int_name
);
5178 /* Notify the stack of the actual queue counts. */
5179 err
= netif_set_real_num_tx_queues(vsi
->netdev
,
5180 vsi
->num_queue_pairs
);
5182 goto err_set_queues
;
5184 err
= netif_set_real_num_rx_queues(vsi
->netdev
,
5185 vsi
->num_queue_pairs
);
5187 goto err_set_queues
;
5189 } else if (vsi
->type
== I40E_VSI_FDIR
) {
5190 snprintf(int_name
, sizeof(int_name
) - 1, "%s-%s:fdir",
5191 dev_driver_string(&pf
->pdev
->dev
),
5192 dev_name(&pf
->pdev
->dev
));
5193 err
= i40e_vsi_request_irq(vsi
, int_name
);
5200 err
= i40e_up_complete(vsi
);
5202 goto err_up_complete
;
5209 i40e_vsi_free_irq(vsi
);
5211 i40e_vsi_free_rx_resources(vsi
);
5213 i40e_vsi_free_tx_resources(vsi
);
5214 if (vsi
== pf
->vsi
[pf
->lan_vsi
])
5215 i40e_do_reset(pf
, BIT_ULL(__I40E_PF_RESET_REQUESTED
));
5221 * i40e_fdir_filter_exit - Cleans up the Flow Director accounting
5222 * @pf: Pointer to PF
5224 * This function destroys the hlist where all the Flow Director
5225 * filters were saved.
5227 static void i40e_fdir_filter_exit(struct i40e_pf
*pf
)
5229 struct i40e_fdir_filter
*filter
;
5230 struct hlist_node
*node2
;
5232 hlist_for_each_entry_safe(filter
, node2
,
5233 &pf
->fdir_filter_list
, fdir_node
) {
5234 hlist_del(&filter
->fdir_node
);
5237 pf
->fdir_pf_active_filters
= 0;
5241 * i40e_close - Disables a network interface
5242 * @netdev: network interface device structure
5244 * The close entry point is called when an interface is de-activated
5245 * by the OS. The hardware is still under the driver's control, but
5246 * this netdev interface is disabled.
5248 * Returns 0, this is not allowed to fail
5251 int i40e_close(struct net_device
*netdev
)
5253 static int i40e_close(struct net_device
*netdev
)
5256 struct i40e_netdev_priv
*np
= netdev_priv(netdev
);
5257 struct i40e_vsi
*vsi
= np
->vsi
;
5259 i40e_vsi_close(vsi
);
5265 * i40e_do_reset - Start a PF or Core Reset sequence
5266 * @pf: board private structure
5267 * @reset_flags: which reset is requested
5269 * The essential difference in resets is that the PF Reset
5270 * doesn't clear the packet buffers, doesn't reset the PE
5271 * firmware, and doesn't bother the other PFs on the chip.
5273 void i40e_do_reset(struct i40e_pf
*pf
, u32 reset_flags
)
5277 WARN_ON(in_interrupt());
5279 if (i40e_check_asq_alive(&pf
->hw
))
5280 i40e_vc_notify_reset(pf
);
5282 /* do the biggest reset indicated */
5283 if (reset_flags
& BIT_ULL(__I40E_GLOBAL_RESET_REQUESTED
)) {
5285 /* Request a Global Reset
5287 * This will start the chip's countdown to the actual full
5288 * chip reset event, and a warning interrupt to be sent
5289 * to all PFs, including the requestor. Our handler
5290 * for the warning interrupt will deal with the shutdown
5291 * and recovery of the switch setup.
5293 dev_dbg(&pf
->pdev
->dev
, "GlobalR requested\n");
5294 val
= rd32(&pf
->hw
, I40E_GLGEN_RTRIG
);
5295 val
|= I40E_GLGEN_RTRIG_GLOBR_MASK
;
5296 wr32(&pf
->hw
, I40E_GLGEN_RTRIG
, val
);
5298 } else if (reset_flags
& BIT_ULL(__I40E_CORE_RESET_REQUESTED
)) {
5300 /* Request a Core Reset
5302 * Same as Global Reset, except does *not* include the MAC/PHY
5304 dev_dbg(&pf
->pdev
->dev
, "CoreR requested\n");
5305 val
= rd32(&pf
->hw
, I40E_GLGEN_RTRIG
);
5306 val
|= I40E_GLGEN_RTRIG_CORER_MASK
;
5307 wr32(&pf
->hw
, I40E_GLGEN_RTRIG
, val
);
5308 i40e_flush(&pf
->hw
);
5310 } else if (reset_flags
& BIT_ULL(__I40E_PF_RESET_REQUESTED
)) {
5312 /* Request a PF Reset
5314 * Resets only the PF-specific registers
5316 * This goes directly to the tear-down and rebuild of
5317 * the switch, since we need to do all the recovery as
5318 * for the Core Reset.
5320 dev_dbg(&pf
->pdev
->dev
, "PFR requested\n");
5321 i40e_handle_reset_warning(pf
);
5323 } else if (reset_flags
& BIT_ULL(__I40E_REINIT_REQUESTED
)) {
5326 /* Find the VSI(s) that requested a re-init */
5327 dev_info(&pf
->pdev
->dev
,
5328 "VSI reinit requested\n");
5329 for (v
= 0; v
< pf
->num_alloc_vsi
; v
++) {
5330 struct i40e_vsi
*vsi
= pf
->vsi
[v
];
5332 test_bit(__I40E_REINIT_REQUESTED
, &vsi
->state
)) {
5333 i40e_vsi_reinit_locked(pf
->vsi
[v
]);
5334 clear_bit(__I40E_REINIT_REQUESTED
, &vsi
->state
);
5338 /* no further action needed, so return now */
5340 } else if (reset_flags
& BIT_ULL(__I40E_DOWN_REQUESTED
)) {
5343 /* Find the VSI(s) that needs to be brought down */
5344 dev_info(&pf
->pdev
->dev
, "VSI down requested\n");
5345 for (v
= 0; v
< pf
->num_alloc_vsi
; v
++) {
5346 struct i40e_vsi
*vsi
= pf
->vsi
[v
];
5348 test_bit(__I40E_DOWN_REQUESTED
, &vsi
->state
)) {
5349 set_bit(__I40E_DOWN
, &vsi
->state
);
5351 clear_bit(__I40E_DOWN_REQUESTED
, &vsi
->state
);
5355 /* no further action needed, so return now */
5358 dev_info(&pf
->pdev
->dev
,
5359 "bad reset request 0x%08x\n", reset_flags
);
5364 #ifdef CONFIG_I40E_DCB
5366 * i40e_dcb_need_reconfig - Check if DCB needs reconfig
5367 * @pf: board private structure
5368 * @old_cfg: current DCB config
5369 * @new_cfg: new DCB config
5371 bool i40e_dcb_need_reconfig(struct i40e_pf
*pf
,
5372 struct i40e_dcbx_config
*old_cfg
,
5373 struct i40e_dcbx_config
*new_cfg
)
5375 bool need_reconfig
= false;
5377 /* Check if ETS configuration has changed */
5378 if (memcmp(&new_cfg
->etscfg
,
5380 sizeof(new_cfg
->etscfg
))) {
5381 /* If Priority Table has changed reconfig is needed */
5382 if (memcmp(&new_cfg
->etscfg
.prioritytable
,
5383 &old_cfg
->etscfg
.prioritytable
,
5384 sizeof(new_cfg
->etscfg
.prioritytable
))) {
5385 need_reconfig
= true;
5386 dev_dbg(&pf
->pdev
->dev
, "ETS UP2TC changed.\n");
5389 if (memcmp(&new_cfg
->etscfg
.tcbwtable
,
5390 &old_cfg
->etscfg
.tcbwtable
,
5391 sizeof(new_cfg
->etscfg
.tcbwtable
)))
5392 dev_dbg(&pf
->pdev
->dev
, "ETS TC BW Table changed.\n");
5394 if (memcmp(&new_cfg
->etscfg
.tsatable
,
5395 &old_cfg
->etscfg
.tsatable
,
5396 sizeof(new_cfg
->etscfg
.tsatable
)))
5397 dev_dbg(&pf
->pdev
->dev
, "ETS TSA Table changed.\n");
5400 /* Check if PFC configuration has changed */
5401 if (memcmp(&new_cfg
->pfc
,
5403 sizeof(new_cfg
->pfc
))) {
5404 need_reconfig
= true;
5405 dev_dbg(&pf
->pdev
->dev
, "PFC config change detected.\n");
5408 /* Check if APP Table has changed */
5409 if (memcmp(&new_cfg
->app
,
5411 sizeof(new_cfg
->app
))) {
5412 need_reconfig
= true;
5413 dev_dbg(&pf
->pdev
->dev
, "APP Table change detected.\n");
5416 dev_dbg(&pf
->pdev
->dev
, "dcb need_reconfig=%d\n", need_reconfig
);
5417 return need_reconfig
;
5421 * i40e_handle_lldp_event - Handle LLDP Change MIB event
5422 * @pf: board private structure
5423 * @e: event info posted on ARQ
5425 static int i40e_handle_lldp_event(struct i40e_pf
*pf
,
5426 struct i40e_arq_event_info
*e
)
5428 struct i40e_aqc_lldp_get_mib
*mib
=
5429 (struct i40e_aqc_lldp_get_mib
*)&e
->desc
.params
.raw
;
5430 struct i40e_hw
*hw
= &pf
->hw
;
5431 struct i40e_dcbx_config tmp_dcbx_cfg
;
5432 bool need_reconfig
= false;
5436 /* Not DCB capable or capability disabled */
5437 if (!(pf
->flags
& I40E_FLAG_DCB_CAPABLE
))
5440 /* Ignore if event is not for Nearest Bridge */
5441 type
= ((mib
->type
>> I40E_AQ_LLDP_BRIDGE_TYPE_SHIFT
)
5442 & I40E_AQ_LLDP_BRIDGE_TYPE_MASK
);
5443 dev_dbg(&pf
->pdev
->dev
, "LLDP event mib bridge type 0x%x\n", type
);
5444 if (type
!= I40E_AQ_LLDP_BRIDGE_TYPE_NEAREST_BRIDGE
)
5447 /* Check MIB Type and return if event for Remote MIB update */
5448 type
= mib
->type
& I40E_AQ_LLDP_MIB_TYPE_MASK
;
5449 dev_dbg(&pf
->pdev
->dev
,
5450 "LLDP event mib type %s\n", type
? "remote" : "local");
5451 if (type
== I40E_AQ_LLDP_MIB_REMOTE
) {
5452 /* Update the remote cached instance and return */
5453 ret
= i40e_aq_get_dcb_config(hw
, I40E_AQ_LLDP_MIB_REMOTE
,
5454 I40E_AQ_LLDP_BRIDGE_TYPE_NEAREST_BRIDGE
,
5455 &hw
->remote_dcbx_config
);
5459 /* Store the old configuration */
5460 tmp_dcbx_cfg
= hw
->local_dcbx_config
;
5462 /* Reset the old DCBx configuration data */
5463 memset(&hw
->local_dcbx_config
, 0, sizeof(hw
->local_dcbx_config
));
5464 /* Get updated DCBX data from firmware */
5465 ret
= i40e_get_dcb_config(&pf
->hw
);
5467 dev_info(&pf
->pdev
->dev
,
5468 "Failed querying DCB configuration data from firmware, err %s aq_err %s\n",
5469 i40e_stat_str(&pf
->hw
, ret
),
5470 i40e_aq_str(&pf
->hw
, pf
->hw
.aq
.asq_last_status
));
5474 /* No change detected in DCBX configs */
5475 if (!memcmp(&tmp_dcbx_cfg
, &hw
->local_dcbx_config
,
5476 sizeof(tmp_dcbx_cfg
))) {
5477 dev_dbg(&pf
->pdev
->dev
, "No change detected in DCBX configuration.\n");
5481 need_reconfig
= i40e_dcb_need_reconfig(pf
, &tmp_dcbx_cfg
,
5482 &hw
->local_dcbx_config
);
5484 i40e_dcbnl_flush_apps(pf
, &tmp_dcbx_cfg
, &hw
->local_dcbx_config
);
5489 /* Enable DCB tagging only when more than one TC */
5490 if (i40e_dcb_get_num_tc(&hw
->local_dcbx_config
) > 1)
5491 pf
->flags
|= I40E_FLAG_DCB_ENABLED
;
5493 pf
->flags
&= ~I40E_FLAG_DCB_ENABLED
;
5495 set_bit(__I40E_PORT_TX_SUSPENDED
, &pf
->state
);
5496 /* Reconfiguration needed quiesce all VSIs */
5497 i40e_pf_quiesce_all_vsi(pf
);
5499 /* Changes in configuration update VEB/VSI */
5500 i40e_dcb_reconfigure(pf
);
5502 ret
= i40e_resume_port_tx(pf
);
5504 clear_bit(__I40E_PORT_TX_SUSPENDED
, &pf
->state
);
5505 /* In case of error no point in resuming VSIs */
5509 /* Wait for the PF's Tx queues to be disabled */
5510 ret
= i40e_pf_wait_txq_disabled(pf
);
5512 /* Schedule PF reset to recover */
5513 set_bit(__I40E_PF_RESET_REQUESTED
, &pf
->state
);
5514 i40e_service_event_schedule(pf
);
5516 i40e_pf_unquiesce_all_vsi(pf
);
5522 #endif /* CONFIG_I40E_DCB */
5525 * i40e_do_reset_safe - Protected reset path for userland calls.
5526 * @pf: board private structure
5527 * @reset_flags: which reset is requested
5530 void i40e_do_reset_safe(struct i40e_pf
*pf
, u32 reset_flags
)
5533 i40e_do_reset(pf
, reset_flags
);
5538 * i40e_handle_lan_overflow_event - Handler for LAN queue overflow event
5539 * @pf: board private structure
5540 * @e: event info posted on ARQ
5542 * Handler for LAN Queue Overflow Event generated by the firmware for PF
5545 static void i40e_handle_lan_overflow_event(struct i40e_pf
*pf
,
5546 struct i40e_arq_event_info
*e
)
5548 struct i40e_aqc_lan_overflow
*data
=
5549 (struct i40e_aqc_lan_overflow
*)&e
->desc
.params
.raw
;
5550 u32 queue
= le32_to_cpu(data
->prtdcb_rupto
);
5551 u32 qtx_ctl
= le32_to_cpu(data
->otx_ctl
);
5552 struct i40e_hw
*hw
= &pf
->hw
;
5556 dev_dbg(&pf
->pdev
->dev
, "overflow Rx Queue Number = %d QTX_CTL=0x%08x\n",
5559 /* Queue belongs to VF, find the VF and issue VF reset */
5560 if (((qtx_ctl
& I40E_QTX_CTL_PFVF_Q_MASK
)
5561 >> I40E_QTX_CTL_PFVF_Q_SHIFT
) == I40E_QTX_CTL_VF_QUEUE
) {
5562 vf_id
= (u16
)((qtx_ctl
& I40E_QTX_CTL_VFVM_INDX_MASK
)
5563 >> I40E_QTX_CTL_VFVM_INDX_SHIFT
);
5564 vf_id
-= hw
->func_caps
.vf_base_id
;
5565 vf
= &pf
->vf
[vf_id
];
5566 i40e_vc_notify_vf_reset(vf
);
5567 /* Allow VF to process pending reset notification */
5569 i40e_reset_vf(vf
, false);
5574 * i40e_service_event_complete - Finish up the service event
5575 * @pf: board private structure
5577 static void i40e_service_event_complete(struct i40e_pf
*pf
)
5579 BUG_ON(!test_bit(__I40E_SERVICE_SCHED
, &pf
->state
));
5581 /* flush memory to make sure state is correct before next watchog */
5582 smp_mb__before_atomic();
5583 clear_bit(__I40E_SERVICE_SCHED
, &pf
->state
);
5587 * i40e_get_cur_guaranteed_fd_count - Get the consumed guaranteed FD filters
5588 * @pf: board private structure
5590 u32
i40e_get_cur_guaranteed_fd_count(struct i40e_pf
*pf
)
5594 val
= rd32(&pf
->hw
, I40E_PFQF_FDSTAT
);
5595 fcnt_prog
= (val
& I40E_PFQF_FDSTAT_GUARANT_CNT_MASK
);
5600 * i40e_get_current_fd_count - Get total FD filters programmed for this PF
5601 * @pf: board private structure
5603 u32
i40e_get_current_fd_count(struct i40e_pf
*pf
)
5607 val
= rd32(&pf
->hw
, I40E_PFQF_FDSTAT
);
5608 fcnt_prog
= (val
& I40E_PFQF_FDSTAT_GUARANT_CNT_MASK
) +
5609 ((val
& I40E_PFQF_FDSTAT_BEST_CNT_MASK
) >>
5610 I40E_PFQF_FDSTAT_BEST_CNT_SHIFT
);
5615 * i40e_get_global_fd_count - Get total FD filters programmed on device
5616 * @pf: board private structure
5618 u32
i40e_get_global_fd_count(struct i40e_pf
*pf
)
5622 val
= rd32(&pf
->hw
, I40E_GLQF_FDCNT_0
);
5623 fcnt_prog
= (val
& I40E_GLQF_FDCNT_0_GUARANT_CNT_MASK
) +
5624 ((val
& I40E_GLQF_FDCNT_0_BESTCNT_MASK
) >>
5625 I40E_GLQF_FDCNT_0_BESTCNT_SHIFT
);
5630 * i40e_fdir_check_and_reenable - Function to reenabe FD ATR or SB if disabled
5631 * @pf: board private structure
5633 void i40e_fdir_check_and_reenable(struct i40e_pf
*pf
)
5635 u32 fcnt_prog
, fcnt_avail
;
5637 if (test_bit(__I40E_FD_FLUSH_REQUESTED
, &pf
->state
))
5640 /* Check if, FD SB or ATR was auto disabled and if there is enough room
5643 fcnt_prog
= i40e_get_global_fd_count(pf
);
5644 fcnt_avail
= pf
->fdir_pf_filter_count
;
5645 if ((fcnt_prog
< (fcnt_avail
- I40E_FDIR_BUFFER_HEAD_ROOM
)) ||
5646 (pf
->fd_add_err
== 0) ||
5647 (i40e_get_current_atr_cnt(pf
) < pf
->fd_atr_cnt
)) {
5648 if ((pf
->flags
& I40E_FLAG_FD_SB_ENABLED
) &&
5649 (pf
->auto_disable_flags
& I40E_FLAG_FD_SB_ENABLED
)) {
5650 pf
->auto_disable_flags
&= ~I40E_FLAG_FD_SB_ENABLED
;
5651 if (I40E_DEBUG_FD
& pf
->hw
.debug_mask
)
5652 dev_info(&pf
->pdev
->dev
, "FD Sideband/ntuple is being enabled since we have space in the table now\n");
5655 /* Wait for some more space to be available to turn on ATR */
5656 if (fcnt_prog
< (fcnt_avail
- I40E_FDIR_BUFFER_HEAD_ROOM
* 2)) {
5657 if ((pf
->flags
& I40E_FLAG_FD_ATR_ENABLED
) &&
5658 (pf
->auto_disable_flags
& I40E_FLAG_FD_ATR_ENABLED
)) {
5659 pf
->auto_disable_flags
&= ~I40E_FLAG_FD_ATR_ENABLED
;
5660 if (I40E_DEBUG_FD
& pf
->hw
.debug_mask
)
5661 dev_info(&pf
->pdev
->dev
, "ATR is being enabled since we have space in the table now\n");
5666 #define I40E_MIN_FD_FLUSH_INTERVAL 10
5667 #define I40E_MIN_FD_FLUSH_SB_ATR_UNSTABLE 30
5669 * i40e_fdir_flush_and_replay - Function to flush all FD filters and replay SB
5670 * @pf: board private structure
5672 static void i40e_fdir_flush_and_replay(struct i40e_pf
*pf
)
5674 unsigned long min_flush_time
;
5675 int flush_wait_retry
= 50;
5676 bool disable_atr
= false;
5680 if (!(pf
->flags
& (I40E_FLAG_FD_SB_ENABLED
| I40E_FLAG_FD_ATR_ENABLED
)))
5683 if (time_after(jiffies
, pf
->fd_flush_timestamp
+
5684 (I40E_MIN_FD_FLUSH_INTERVAL
* HZ
))) {
5685 /* If the flush is happening too quick and we have mostly
5686 * SB rules we should not re-enable ATR for some time.
5688 min_flush_time
= pf
->fd_flush_timestamp
5689 + (I40E_MIN_FD_FLUSH_SB_ATR_UNSTABLE
* HZ
);
5690 fd_room
= pf
->fdir_pf_filter_count
- pf
->fdir_pf_active_filters
;
5692 if (!(time_after(jiffies
, min_flush_time
)) &&
5693 (fd_room
< I40E_FDIR_BUFFER_HEAD_ROOM_FOR_ATR
)) {
5694 if (I40E_DEBUG_FD
& pf
->hw
.debug_mask
)
5695 dev_info(&pf
->pdev
->dev
, "ATR disabled, not enough FD filter space.\n");
5699 pf
->fd_flush_timestamp
= jiffies
;
5700 pf
->flags
&= ~I40E_FLAG_FD_ATR_ENABLED
;
5701 /* flush all filters */
5702 wr32(&pf
->hw
, I40E_PFQF_CTL_1
,
5703 I40E_PFQF_CTL_1_CLEARFDTABLE_MASK
);
5704 i40e_flush(&pf
->hw
);
5708 /* Check FD flush status every 5-6msec */
5709 usleep_range(5000, 6000);
5710 reg
= rd32(&pf
->hw
, I40E_PFQF_CTL_1
);
5711 if (!(reg
& I40E_PFQF_CTL_1_CLEARFDTABLE_MASK
))
5713 } while (flush_wait_retry
--);
5714 if (reg
& I40E_PFQF_CTL_1_CLEARFDTABLE_MASK
) {
5715 dev_warn(&pf
->pdev
->dev
, "FD table did not flush, needs more time\n");
5717 /* replay sideband filters */
5718 i40e_fdir_filter_restore(pf
->vsi
[pf
->lan_vsi
]);
5720 pf
->flags
|= I40E_FLAG_FD_ATR_ENABLED
;
5721 clear_bit(__I40E_FD_FLUSH_REQUESTED
, &pf
->state
);
5722 if (I40E_DEBUG_FD
& pf
->hw
.debug_mask
)
5723 dev_info(&pf
->pdev
->dev
, "FD Filter table flushed and FD-SB replayed.\n");
5729 * i40e_get_current_atr_count - Get the count of total FD ATR filters programmed
5730 * @pf: board private structure
5732 u32
i40e_get_current_atr_cnt(struct i40e_pf
*pf
)
5734 return i40e_get_current_fd_count(pf
) - pf
->fdir_pf_active_filters
;
5737 /* We can see up to 256 filter programming desc in transit if the filters are
5738 * being applied really fast; before we see the first
5739 * filter miss error on Rx queue 0. Accumulating enough error messages before
5740 * reacting will make sure we don't cause flush too often.
5742 #define I40E_MAX_FD_PROGRAM_ERROR 256
5745 * i40e_fdir_reinit_subtask - Worker thread to reinit FDIR filter table
5746 * @pf: board private structure
5748 static void i40e_fdir_reinit_subtask(struct i40e_pf
*pf
)
5751 /* if interface is down do nothing */
5752 if (test_bit(__I40E_DOWN
, &pf
->state
))
5755 if (!(pf
->flags
& (I40E_FLAG_FD_SB_ENABLED
| I40E_FLAG_FD_ATR_ENABLED
)))
5758 if (test_bit(__I40E_FD_FLUSH_REQUESTED
, &pf
->state
))
5759 i40e_fdir_flush_and_replay(pf
);
5761 i40e_fdir_check_and_reenable(pf
);
5766 * i40e_vsi_link_event - notify VSI of a link event
5767 * @vsi: vsi to be notified
5768 * @link_up: link up or down
5770 static void i40e_vsi_link_event(struct i40e_vsi
*vsi
, bool link_up
)
5772 if (!vsi
|| test_bit(__I40E_DOWN
, &vsi
->state
))
5775 switch (vsi
->type
) {
5780 if (!vsi
->netdev
|| !vsi
->netdev_registered
)
5784 netif_carrier_on(vsi
->netdev
);
5785 netif_tx_wake_all_queues(vsi
->netdev
);
5787 netif_carrier_off(vsi
->netdev
);
5788 netif_tx_stop_all_queues(vsi
->netdev
);
5792 case I40E_VSI_SRIOV
:
5793 case I40E_VSI_VMDQ2
:
5795 case I40E_VSI_MIRROR
:
5797 /* there is no notification for other VSIs */
5803 * i40e_veb_link_event - notify elements on the veb of a link event
5804 * @veb: veb to be notified
5805 * @link_up: link up or down
5807 static void i40e_veb_link_event(struct i40e_veb
*veb
, bool link_up
)
5812 if (!veb
|| !veb
->pf
)
5816 /* depth first... */
5817 for (i
= 0; i
< I40E_MAX_VEB
; i
++)
5818 if (pf
->veb
[i
] && (pf
->veb
[i
]->uplink_seid
== veb
->seid
))
5819 i40e_veb_link_event(pf
->veb
[i
], link_up
);
5821 /* ... now the local VSIs */
5822 for (i
= 0; i
< pf
->num_alloc_vsi
; i
++)
5823 if (pf
->vsi
[i
] && (pf
->vsi
[i
]->uplink_seid
== veb
->seid
))
5824 i40e_vsi_link_event(pf
->vsi
[i
], link_up
);
5828 * i40e_link_event - Update netif_carrier status
5829 * @pf: board private structure
5831 static void i40e_link_event(struct i40e_pf
*pf
)
5833 struct i40e_vsi
*vsi
= pf
->vsi
[pf
->lan_vsi
];
5834 u8 new_link_speed
, old_link_speed
;
5836 bool new_link
, old_link
;
5838 /* set this to force the get_link_status call to refresh state */
5839 pf
->hw
.phy
.get_link_info
= true;
5841 old_link
= (pf
->hw
.phy
.link_info_old
.link_info
& I40E_AQ_LINK_UP
);
5843 status
= i40e_get_link_status(&pf
->hw
, &new_link
);
5845 dev_dbg(&pf
->pdev
->dev
, "couldn't get link state, status: %d\n",
5850 old_link_speed
= pf
->hw
.phy
.link_info_old
.link_speed
;
5851 new_link_speed
= pf
->hw
.phy
.link_info
.link_speed
;
5853 if (new_link
== old_link
&&
5854 new_link_speed
== old_link_speed
&&
5855 (test_bit(__I40E_DOWN
, &vsi
->state
) ||
5856 new_link
== netif_carrier_ok(vsi
->netdev
)))
5859 if (!test_bit(__I40E_DOWN
, &vsi
->state
))
5860 i40e_print_link_message(vsi
, new_link
);
5862 /* Notify the base of the switch tree connected to
5863 * the link. Floating VEBs are not notified.
5865 if (pf
->lan_veb
!= I40E_NO_VEB
&& pf
->veb
[pf
->lan_veb
])
5866 i40e_veb_link_event(pf
->veb
[pf
->lan_veb
], new_link
);
5868 i40e_vsi_link_event(vsi
, new_link
);
5871 i40e_vc_notify_link_state(pf
);
5873 if (pf
->flags
& I40E_FLAG_PTP
)
5874 i40e_ptp_set_increment(pf
);
5878 * i40e_watchdog_subtask - periodic checks not using event driven response
5879 * @pf: board private structure
5881 static void i40e_watchdog_subtask(struct i40e_pf
*pf
)
5885 /* if interface is down do nothing */
5886 if (test_bit(__I40E_DOWN
, &pf
->state
) ||
5887 test_bit(__I40E_CONFIG_BUSY
, &pf
->state
))
5890 /* make sure we don't do these things too often */
5891 if (time_before(jiffies
, (pf
->service_timer_previous
+
5892 pf
->service_timer_period
)))
5894 pf
->service_timer_previous
= jiffies
;
5896 i40e_link_event(pf
);
5898 /* Update the stats for active netdevs so the network stack
5899 * can look at updated numbers whenever it cares to
5901 for (i
= 0; i
< pf
->num_alloc_vsi
; i
++)
5902 if (pf
->vsi
[i
] && pf
->vsi
[i
]->netdev
)
5903 i40e_update_stats(pf
->vsi
[i
]);
5905 if (pf
->flags
& I40E_FLAG_VEB_STATS_ENABLED
) {
5906 /* Update the stats for the active switching components */
5907 for (i
= 0; i
< I40E_MAX_VEB
; i
++)
5909 i40e_update_veb_stats(pf
->veb
[i
]);
5912 i40e_ptp_rx_hang(pf
->vsi
[pf
->lan_vsi
]);
5916 * i40e_reset_subtask - Set up for resetting the device and driver
5917 * @pf: board private structure
5919 static void i40e_reset_subtask(struct i40e_pf
*pf
)
5921 u32 reset_flags
= 0;
5924 if (test_bit(__I40E_REINIT_REQUESTED
, &pf
->state
)) {
5925 reset_flags
|= BIT_ULL(__I40E_REINIT_REQUESTED
);
5926 clear_bit(__I40E_REINIT_REQUESTED
, &pf
->state
);
5928 if (test_bit(__I40E_PF_RESET_REQUESTED
, &pf
->state
)) {
5929 reset_flags
|= BIT_ULL(__I40E_PF_RESET_REQUESTED
);
5930 clear_bit(__I40E_PF_RESET_REQUESTED
, &pf
->state
);
5932 if (test_bit(__I40E_CORE_RESET_REQUESTED
, &pf
->state
)) {
5933 reset_flags
|= BIT_ULL(__I40E_CORE_RESET_REQUESTED
);
5934 clear_bit(__I40E_CORE_RESET_REQUESTED
, &pf
->state
);
5936 if (test_bit(__I40E_GLOBAL_RESET_REQUESTED
, &pf
->state
)) {
5937 reset_flags
|= BIT_ULL(__I40E_GLOBAL_RESET_REQUESTED
);
5938 clear_bit(__I40E_GLOBAL_RESET_REQUESTED
, &pf
->state
);
5940 if (test_bit(__I40E_DOWN_REQUESTED
, &pf
->state
)) {
5941 reset_flags
|= BIT_ULL(__I40E_DOWN_REQUESTED
);
5942 clear_bit(__I40E_DOWN_REQUESTED
, &pf
->state
);
5945 /* If there's a recovery already waiting, it takes
5946 * precedence before starting a new reset sequence.
5948 if (test_bit(__I40E_RESET_INTR_RECEIVED
, &pf
->state
)) {
5949 i40e_handle_reset_warning(pf
);
5953 /* If we're already down or resetting, just bail */
5955 !test_bit(__I40E_DOWN
, &pf
->state
) &&
5956 !test_bit(__I40E_CONFIG_BUSY
, &pf
->state
))
5957 i40e_do_reset(pf
, reset_flags
);
5964 * i40e_handle_link_event - Handle link event
5965 * @pf: board private structure
5966 * @e: event info posted on ARQ
5968 static void i40e_handle_link_event(struct i40e_pf
*pf
,
5969 struct i40e_arq_event_info
*e
)
5971 struct i40e_hw
*hw
= &pf
->hw
;
5972 struct i40e_aqc_get_link_status
*status
=
5973 (struct i40e_aqc_get_link_status
*)&e
->desc
.params
.raw
;
5975 /* save off old link status information */
5976 hw
->phy
.link_info_old
= hw
->phy
.link_info
;
5978 /* Do a new status request to re-enable LSE reporting
5979 * and load new status information into the hw struct
5980 * This completely ignores any state information
5981 * in the ARQ event info, instead choosing to always
5982 * issue the AQ update link status command.
5984 i40e_link_event(pf
);
5986 /* check for unqualified module, if link is down */
5987 if ((status
->link_info
& I40E_AQ_MEDIA_AVAILABLE
) &&
5988 (!(status
->an_info
& I40E_AQ_QUALIFIED_MODULE
)) &&
5989 (!(status
->link_info
& I40E_AQ_LINK_UP
)))
5990 dev_err(&pf
->pdev
->dev
,
5991 "The driver failed to link because an unqualified module was detected.\n");
5995 * i40e_clean_adminq_subtask - Clean the AdminQ rings
5996 * @pf: board private structure
5998 static void i40e_clean_adminq_subtask(struct i40e_pf
*pf
)
6000 struct i40e_arq_event_info event
;
6001 struct i40e_hw
*hw
= &pf
->hw
;
6008 /* Do not run clean AQ when PF reset fails */
6009 if (test_bit(__I40E_RESET_FAILED
, &pf
->state
))
6012 /* check for error indications */
6013 val
= rd32(&pf
->hw
, pf
->hw
.aq
.arq
.len
);
6015 if (val
& I40E_PF_ARQLEN_ARQVFE_MASK
) {
6016 dev_info(&pf
->pdev
->dev
, "ARQ VF Error detected\n");
6017 val
&= ~I40E_PF_ARQLEN_ARQVFE_MASK
;
6019 if (val
& I40E_PF_ARQLEN_ARQOVFL_MASK
) {
6020 dev_info(&pf
->pdev
->dev
, "ARQ Overflow Error detected\n");
6021 val
&= ~I40E_PF_ARQLEN_ARQOVFL_MASK
;
6023 if (val
& I40E_PF_ARQLEN_ARQCRIT_MASK
) {
6024 dev_info(&pf
->pdev
->dev
, "ARQ Critical Error detected\n");
6025 val
&= ~I40E_PF_ARQLEN_ARQCRIT_MASK
;
6028 wr32(&pf
->hw
, pf
->hw
.aq
.arq
.len
, val
);
6030 val
= rd32(&pf
->hw
, pf
->hw
.aq
.asq
.len
);
6032 if (val
& I40E_PF_ATQLEN_ATQVFE_MASK
) {
6033 dev_info(&pf
->pdev
->dev
, "ASQ VF Error detected\n");
6034 val
&= ~I40E_PF_ATQLEN_ATQVFE_MASK
;
6036 if (val
& I40E_PF_ATQLEN_ATQOVFL_MASK
) {
6037 dev_info(&pf
->pdev
->dev
, "ASQ Overflow Error detected\n");
6038 val
&= ~I40E_PF_ATQLEN_ATQOVFL_MASK
;
6040 if (val
& I40E_PF_ATQLEN_ATQCRIT_MASK
) {
6041 dev_info(&pf
->pdev
->dev
, "ASQ Critical Error detected\n");
6042 val
&= ~I40E_PF_ATQLEN_ATQCRIT_MASK
;
6045 wr32(&pf
->hw
, pf
->hw
.aq
.asq
.len
, val
);
6047 event
.buf_len
= I40E_MAX_AQ_BUF_SIZE
;
6048 event
.msg_buf
= kzalloc(event
.buf_len
, GFP_KERNEL
);
6053 ret
= i40e_clean_arq_element(hw
, &event
, &pending
);
6054 if (ret
== I40E_ERR_ADMIN_QUEUE_NO_WORK
)
6057 dev_info(&pf
->pdev
->dev
, "ARQ event error %d\n", ret
);
6061 opcode
= le16_to_cpu(event
.desc
.opcode
);
6064 case i40e_aqc_opc_get_link_status
:
6065 i40e_handle_link_event(pf
, &event
);
6067 case i40e_aqc_opc_send_msg_to_pf
:
6068 ret
= i40e_vc_process_vf_msg(pf
,
6069 le16_to_cpu(event
.desc
.retval
),
6070 le32_to_cpu(event
.desc
.cookie_high
),
6071 le32_to_cpu(event
.desc
.cookie_low
),
6075 case i40e_aqc_opc_lldp_update_mib
:
6076 dev_dbg(&pf
->pdev
->dev
, "ARQ: Update LLDP MIB event received\n");
6077 #ifdef CONFIG_I40E_DCB
6079 ret
= i40e_handle_lldp_event(pf
, &event
);
6081 #endif /* CONFIG_I40E_DCB */
6083 case i40e_aqc_opc_event_lan_overflow
:
6084 dev_dbg(&pf
->pdev
->dev
, "ARQ LAN queue overflow event received\n");
6085 i40e_handle_lan_overflow_event(pf
, &event
);
6087 case i40e_aqc_opc_send_msg_to_peer
:
6088 dev_info(&pf
->pdev
->dev
, "ARQ: Msg from other pf\n");
6090 case i40e_aqc_opc_nvm_erase
:
6091 case i40e_aqc_opc_nvm_update
:
6092 i40e_debug(&pf
->hw
, I40E_DEBUG_NVM
, "ARQ NVM operation completed\n");
6095 dev_info(&pf
->pdev
->dev
,
6096 "ARQ Error: Unknown event 0x%04x received\n",
6100 } while (pending
&& (i
++ < pf
->adminq_work_limit
));
6102 clear_bit(__I40E_ADMINQ_EVENT_PENDING
, &pf
->state
);
6103 /* re-enable Admin queue interrupt cause */
6104 val
= rd32(hw
, I40E_PFINT_ICR0_ENA
);
6105 val
|= I40E_PFINT_ICR0_ENA_ADMINQ_MASK
;
6106 wr32(hw
, I40E_PFINT_ICR0_ENA
, val
);
6109 kfree(event
.msg_buf
);
6113 * i40e_verify_eeprom - make sure eeprom is good to use
6114 * @pf: board private structure
6116 static void i40e_verify_eeprom(struct i40e_pf
*pf
)
6120 err
= i40e_diag_eeprom_test(&pf
->hw
);
6122 /* retry in case of garbage read */
6123 err
= i40e_diag_eeprom_test(&pf
->hw
);
6125 dev_info(&pf
->pdev
->dev
, "eeprom check failed (%d), Tx/Rx traffic disabled\n",
6127 set_bit(__I40E_BAD_EEPROM
, &pf
->state
);
6131 if (!err
&& test_bit(__I40E_BAD_EEPROM
, &pf
->state
)) {
6132 dev_info(&pf
->pdev
->dev
, "eeprom check passed, Tx/Rx traffic enabled\n");
6133 clear_bit(__I40E_BAD_EEPROM
, &pf
->state
);
6138 * i40e_enable_pf_switch_lb
6139 * @pf: pointer to the PF structure
6141 * enable switch loop back or die - no point in a return value
6143 static void i40e_enable_pf_switch_lb(struct i40e_pf
*pf
)
6145 struct i40e_vsi
*vsi
= pf
->vsi
[pf
->lan_vsi
];
6146 struct i40e_vsi_context ctxt
;
6149 ctxt
.seid
= pf
->main_vsi_seid
;
6150 ctxt
.pf_num
= pf
->hw
.pf_id
;
6152 ret
= i40e_aq_get_vsi_params(&pf
->hw
, &ctxt
, NULL
);
6154 dev_info(&pf
->pdev
->dev
,
6155 "couldn't get PF vsi config, err %s aq_err %s\n",
6156 i40e_stat_str(&pf
->hw
, ret
),
6157 i40e_aq_str(&pf
->hw
, pf
->hw
.aq
.asq_last_status
));
6160 ctxt
.flags
= I40E_AQ_VSI_TYPE_PF
;
6161 ctxt
.info
.valid_sections
= cpu_to_le16(I40E_AQ_VSI_PROP_SWITCH_VALID
);
6162 ctxt
.info
.switch_id
|= cpu_to_le16(I40E_AQ_VSI_SW_ID_FLAG_ALLOW_LB
);
6164 ret
= i40e_aq_update_vsi_params(&vsi
->back
->hw
, &ctxt
, NULL
);
6166 dev_info(&pf
->pdev
->dev
,
6167 "update vsi switch failed, err %s aq_err %s\n",
6168 i40e_stat_str(&pf
->hw
, ret
),
6169 i40e_aq_str(&pf
->hw
, pf
->hw
.aq
.asq_last_status
));
6174 * i40e_disable_pf_switch_lb
6175 * @pf: pointer to the PF structure
6177 * disable switch loop back or die - no point in a return value
6179 static void i40e_disable_pf_switch_lb(struct i40e_pf
*pf
)
6181 struct i40e_vsi
*vsi
= pf
->vsi
[pf
->lan_vsi
];
6182 struct i40e_vsi_context ctxt
;
6185 ctxt
.seid
= pf
->main_vsi_seid
;
6186 ctxt
.pf_num
= pf
->hw
.pf_id
;
6188 ret
= i40e_aq_get_vsi_params(&pf
->hw
, &ctxt
, NULL
);
6190 dev_info(&pf
->pdev
->dev
,
6191 "couldn't get PF vsi config, err %s aq_err %s\n",
6192 i40e_stat_str(&pf
->hw
, ret
),
6193 i40e_aq_str(&pf
->hw
, pf
->hw
.aq
.asq_last_status
));
6196 ctxt
.flags
= I40E_AQ_VSI_TYPE_PF
;
6197 ctxt
.info
.valid_sections
= cpu_to_le16(I40E_AQ_VSI_PROP_SWITCH_VALID
);
6198 ctxt
.info
.switch_id
&= ~cpu_to_le16(I40E_AQ_VSI_SW_ID_FLAG_ALLOW_LB
);
6200 ret
= i40e_aq_update_vsi_params(&vsi
->back
->hw
, &ctxt
, NULL
);
6202 dev_info(&pf
->pdev
->dev
,
6203 "update vsi switch failed, err %s aq_err %s\n",
6204 i40e_stat_str(&pf
->hw
, ret
),
6205 i40e_aq_str(&pf
->hw
, pf
->hw
.aq
.asq_last_status
));
6210 * i40e_config_bridge_mode - Configure the HW bridge mode
6211 * @veb: pointer to the bridge instance
6213 * Configure the loop back mode for the LAN VSI that is downlink to the
6214 * specified HW bridge instance. It is expected this function is called
6215 * when a new HW bridge is instantiated.
6217 static void i40e_config_bridge_mode(struct i40e_veb
*veb
)
6219 struct i40e_pf
*pf
= veb
->pf
;
6221 dev_info(&pf
->pdev
->dev
, "enabling bridge mode: %s\n",
6222 veb
->bridge_mode
== BRIDGE_MODE_VEPA
? "VEPA" : "VEB");
6223 if (veb
->bridge_mode
& BRIDGE_MODE_VEPA
)
6224 i40e_disable_pf_switch_lb(pf
);
6226 i40e_enable_pf_switch_lb(pf
);
6230 * i40e_reconstitute_veb - rebuild the VEB and anything connected to it
6231 * @veb: pointer to the VEB instance
6233 * This is a recursive function that first builds the attached VSIs then
6234 * recurses in to build the next layer of VEB. We track the connections
6235 * through our own index numbers because the seid's from the HW could
6236 * change across the reset.
6238 static int i40e_reconstitute_veb(struct i40e_veb
*veb
)
6240 struct i40e_vsi
*ctl_vsi
= NULL
;
6241 struct i40e_pf
*pf
= veb
->pf
;
6245 /* build VSI that owns this VEB, temporarily attached to base VEB */
6246 for (v
= 0; v
< pf
->num_alloc_vsi
&& !ctl_vsi
; v
++) {
6248 pf
->vsi
[v
]->veb_idx
== veb
->idx
&&
6249 pf
->vsi
[v
]->flags
& I40E_VSI_FLAG_VEB_OWNER
) {
6250 ctl_vsi
= pf
->vsi
[v
];
6255 dev_info(&pf
->pdev
->dev
,
6256 "missing owner VSI for veb_idx %d\n", veb
->idx
);
6258 goto end_reconstitute
;
6260 if (ctl_vsi
!= pf
->vsi
[pf
->lan_vsi
])
6261 ctl_vsi
->uplink_seid
= pf
->vsi
[pf
->lan_vsi
]->uplink_seid
;
6262 ret
= i40e_add_vsi(ctl_vsi
);
6264 dev_info(&pf
->pdev
->dev
,
6265 "rebuild of veb_idx %d owner VSI failed: %d\n",
6267 goto end_reconstitute
;
6269 i40e_vsi_reset_stats(ctl_vsi
);
6271 /* create the VEB in the switch and move the VSI onto the VEB */
6272 ret
= i40e_add_veb(veb
, ctl_vsi
);
6274 goto end_reconstitute
;
6276 if (pf
->flags
& I40E_FLAG_VEB_MODE_ENABLED
)
6277 veb
->bridge_mode
= BRIDGE_MODE_VEB
;
6279 veb
->bridge_mode
= BRIDGE_MODE_VEPA
;
6280 i40e_config_bridge_mode(veb
);
6282 /* create the remaining VSIs attached to this VEB */
6283 for (v
= 0; v
< pf
->num_alloc_vsi
; v
++) {
6284 if (!pf
->vsi
[v
] || pf
->vsi
[v
] == ctl_vsi
)
6287 if (pf
->vsi
[v
]->veb_idx
== veb
->idx
) {
6288 struct i40e_vsi
*vsi
= pf
->vsi
[v
];
6289 vsi
->uplink_seid
= veb
->seid
;
6290 ret
= i40e_add_vsi(vsi
);
6292 dev_info(&pf
->pdev
->dev
,
6293 "rebuild of vsi_idx %d failed: %d\n",
6295 goto end_reconstitute
;
6297 i40e_vsi_reset_stats(vsi
);
6301 /* create any VEBs attached to this VEB - RECURSION */
6302 for (veb_idx
= 0; veb_idx
< I40E_MAX_VEB
; veb_idx
++) {
6303 if (pf
->veb
[veb_idx
] && pf
->veb
[veb_idx
]->veb_idx
== veb
->idx
) {
6304 pf
->veb
[veb_idx
]->uplink_seid
= veb
->seid
;
6305 ret
= i40e_reconstitute_veb(pf
->veb
[veb_idx
]);
6316 * i40e_get_capabilities - get info about the HW
6317 * @pf: the PF struct
6319 static int i40e_get_capabilities(struct i40e_pf
*pf
)
6321 struct i40e_aqc_list_capabilities_element_resp
*cap_buf
;
6326 buf_len
= 40 * sizeof(struct i40e_aqc_list_capabilities_element_resp
);
6328 cap_buf
= kzalloc(buf_len
, GFP_KERNEL
);
6332 /* this loads the data into the hw struct for us */
6333 err
= i40e_aq_discover_capabilities(&pf
->hw
, cap_buf
, buf_len
,
6335 i40e_aqc_opc_list_func_capabilities
,
6337 /* data loaded, buffer no longer needed */
6340 if (pf
->hw
.aq
.asq_last_status
== I40E_AQ_RC_ENOMEM
) {
6341 /* retry with a larger buffer */
6342 buf_len
= data_size
;
6343 } else if (pf
->hw
.aq
.asq_last_status
!= I40E_AQ_RC_OK
) {
6344 dev_info(&pf
->pdev
->dev
,
6345 "capability discovery failed, err %s aq_err %s\n",
6346 i40e_stat_str(&pf
->hw
, err
),
6347 i40e_aq_str(&pf
->hw
,
6348 pf
->hw
.aq
.asq_last_status
));
6353 if (((pf
->hw
.aq
.fw_maj_ver
== 2) && (pf
->hw
.aq
.fw_min_ver
< 22)) ||
6354 (pf
->hw
.aq
.fw_maj_ver
< 2)) {
6355 pf
->hw
.func_caps
.num_msix_vectors
++;
6356 pf
->hw
.func_caps
.num_msix_vectors_vf
++;
6359 if (pf
->hw
.debug_mask
& I40E_DEBUG_USER
)
6360 dev_info(&pf
->pdev
->dev
,
6361 "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",
6362 pf
->hw
.pf_id
, pf
->hw
.func_caps
.num_vfs
,
6363 pf
->hw
.func_caps
.num_msix_vectors
,
6364 pf
->hw
.func_caps
.num_msix_vectors_vf
,
6365 pf
->hw
.func_caps
.fd_filters_guaranteed
,
6366 pf
->hw
.func_caps
.fd_filters_best_effort
,
6367 pf
->hw
.func_caps
.num_tx_qp
,
6368 pf
->hw
.func_caps
.num_vsis
);
6370 #define DEF_NUM_VSI (1 + (pf->hw.func_caps.fcoe ? 1 : 0) \
6371 + pf->hw.func_caps.num_vfs)
6372 if (pf
->hw
.revision_id
== 0 && (DEF_NUM_VSI
> pf
->hw
.func_caps
.num_vsis
)) {
6373 dev_info(&pf
->pdev
->dev
,
6374 "got num_vsis %d, setting num_vsis to %d\n",
6375 pf
->hw
.func_caps
.num_vsis
, DEF_NUM_VSI
);
6376 pf
->hw
.func_caps
.num_vsis
= DEF_NUM_VSI
;
6382 static int i40e_vsi_clear(struct i40e_vsi
*vsi
);
6385 * i40e_fdir_sb_setup - initialize the Flow Director resources for Sideband
6386 * @pf: board private structure
6388 static void i40e_fdir_sb_setup(struct i40e_pf
*pf
)
6390 struct i40e_vsi
*vsi
;
6393 /* quick workaround for an NVM issue that leaves a critical register
6396 if (!rd32(&pf
->hw
, I40E_GLQF_HKEY(0))) {
6397 static const u32 hkey
[] = {
6398 0xe640d33f, 0xcdfe98ab, 0x73fa7161, 0x0d7a7d36,
6399 0xeacb7d61, 0xaa4f05b6, 0x9c5c89ed, 0xfc425ddb,
6400 0xa4654832, 0xfc7461d4, 0x8f827619, 0xf5c63c21,
6403 for (i
= 0; i
<= I40E_GLQF_HKEY_MAX_INDEX
; i
++)
6404 wr32(&pf
->hw
, I40E_GLQF_HKEY(i
), hkey
[i
]);
6407 if (!(pf
->flags
& I40E_FLAG_FD_SB_ENABLED
))
6410 /* find existing VSI and see if it needs configuring */
6412 for (i
= 0; i
< pf
->num_alloc_vsi
; i
++) {
6413 if (pf
->vsi
[i
] && pf
->vsi
[i
]->type
== I40E_VSI_FDIR
) {
6419 /* create a new VSI if none exists */
6421 vsi
= i40e_vsi_setup(pf
, I40E_VSI_FDIR
,
6422 pf
->vsi
[pf
->lan_vsi
]->seid
, 0);
6424 dev_info(&pf
->pdev
->dev
, "Couldn't create FDir VSI\n");
6425 pf
->flags
&= ~I40E_FLAG_FD_SB_ENABLED
;
6430 i40e_vsi_setup_irqhandler(vsi
, i40e_fdir_clean_ring
);
6434 * i40e_fdir_teardown - release the Flow Director resources
6435 * @pf: board private structure
6437 static void i40e_fdir_teardown(struct i40e_pf
*pf
)
6441 i40e_fdir_filter_exit(pf
);
6442 for (i
= 0; i
< pf
->num_alloc_vsi
; i
++) {
6443 if (pf
->vsi
[i
] && pf
->vsi
[i
]->type
== I40E_VSI_FDIR
) {
6444 i40e_vsi_release(pf
->vsi
[i
]);
6451 * i40e_prep_for_reset - prep for the core to reset
6452 * @pf: board private structure
6454 * Close up the VFs and other things in prep for PF Reset.
6456 static void i40e_prep_for_reset(struct i40e_pf
*pf
)
6458 struct i40e_hw
*hw
= &pf
->hw
;
6459 i40e_status ret
= 0;
6462 clear_bit(__I40E_RESET_INTR_RECEIVED
, &pf
->state
);
6463 if (test_and_set_bit(__I40E_RESET_RECOVERY_PENDING
, &pf
->state
))
6466 dev_dbg(&pf
->pdev
->dev
, "Tearing down internal switch for reset\n");
6468 /* quiesce the VSIs and their queues that are not already DOWN */
6469 i40e_pf_quiesce_all_vsi(pf
);
6471 for (v
= 0; v
< pf
->num_alloc_vsi
; v
++) {
6473 pf
->vsi
[v
]->seid
= 0;
6476 i40e_shutdown_adminq(&pf
->hw
);
6478 /* call shutdown HMC */
6479 if (hw
->hmc
.hmc_obj
) {
6480 ret
= i40e_shutdown_lan_hmc(hw
);
6482 dev_warn(&pf
->pdev
->dev
,
6483 "shutdown_lan_hmc failed: %d\n", ret
);
6488 * i40e_send_version - update firmware with driver version
6491 static void i40e_send_version(struct i40e_pf
*pf
)
6493 struct i40e_driver_version dv
;
6495 dv
.major_version
= DRV_VERSION_MAJOR
;
6496 dv
.minor_version
= DRV_VERSION_MINOR
;
6497 dv
.build_version
= DRV_VERSION_BUILD
;
6498 dv
.subbuild_version
= 0;
6499 strlcpy(dv
.driver_string
, DRV_VERSION
, sizeof(dv
.driver_string
));
6500 i40e_aq_send_driver_version(&pf
->hw
, &dv
, NULL
);
6504 * i40e_reset_and_rebuild - reset and rebuild using a saved config
6505 * @pf: board private structure
6506 * @reinit: if the Main VSI needs to re-initialized.
6508 static void i40e_reset_and_rebuild(struct i40e_pf
*pf
, bool reinit
)
6510 struct i40e_hw
*hw
= &pf
->hw
;
6511 u8 set_fc_aq_fail
= 0;
6515 /* Now we wait for GRST to settle out.
6516 * We don't have to delete the VEBs or VSIs from the hw switch
6517 * because the reset will make them disappear.
6519 ret
= i40e_pf_reset(hw
);
6521 dev_info(&pf
->pdev
->dev
, "PF reset failed, %d\n", ret
);
6522 set_bit(__I40E_RESET_FAILED
, &pf
->state
);
6523 goto clear_recovery
;
6527 if (test_bit(__I40E_DOWN
, &pf
->state
))
6528 goto clear_recovery
;
6529 dev_dbg(&pf
->pdev
->dev
, "Rebuilding internal switch\n");
6531 /* rebuild the basics for the AdminQ, HMC, and initial HW switch */
6532 ret
= i40e_init_adminq(&pf
->hw
);
6534 dev_info(&pf
->pdev
->dev
, "Rebuild AdminQ failed, err %s aq_err %s\n",
6535 i40e_stat_str(&pf
->hw
, ret
),
6536 i40e_aq_str(&pf
->hw
, pf
->hw
.aq
.asq_last_status
));
6537 goto clear_recovery
;
6540 /* re-verify the eeprom if we just had an EMP reset */
6541 if (test_and_clear_bit(__I40E_EMP_RESET_INTR_RECEIVED
, &pf
->state
))
6542 i40e_verify_eeprom(pf
);
6544 i40e_clear_pxe_mode(hw
);
6545 ret
= i40e_get_capabilities(pf
);
6547 goto end_core_reset
;
6549 ret
= i40e_init_lan_hmc(hw
, hw
->func_caps
.num_tx_qp
,
6550 hw
->func_caps
.num_rx_qp
,
6551 pf
->fcoe_hmc_cntx_num
, pf
->fcoe_hmc_filt_num
);
6553 dev_info(&pf
->pdev
->dev
, "init_lan_hmc failed: %d\n", ret
);
6554 goto end_core_reset
;
6556 ret
= i40e_configure_lan_hmc(hw
, I40E_HMC_MODEL_DIRECT_ONLY
);
6558 dev_info(&pf
->pdev
->dev
, "configure_lan_hmc failed: %d\n", ret
);
6559 goto end_core_reset
;
6562 #ifdef CONFIG_I40E_DCB
6563 ret
= i40e_init_pf_dcb(pf
);
6565 dev_info(&pf
->pdev
->dev
, "DCB init failed %d, disabled\n", ret
);
6566 pf
->flags
&= ~I40E_FLAG_DCB_CAPABLE
;
6567 /* Continue without DCB enabled */
6569 #endif /* CONFIG_I40E_DCB */
6571 i40e_init_pf_fcoe(pf
);
6574 /* do basic switch setup */
6575 ret
= i40e_setup_pf_switch(pf
, reinit
);
6577 goto end_core_reset
;
6579 /* driver is only interested in link up/down and module qualification
6580 * reports from firmware
6582 ret
= i40e_aq_set_phy_int_mask(&pf
->hw
,
6583 I40E_AQ_EVENT_LINK_UPDOWN
|
6584 I40E_AQ_EVENT_MODULE_QUAL_FAIL
, NULL
);
6586 dev_info(&pf
->pdev
->dev
, "set phy mask fail, err %s aq_err %s\n",
6587 i40e_stat_str(&pf
->hw
, ret
),
6588 i40e_aq_str(&pf
->hw
, pf
->hw
.aq
.asq_last_status
));
6590 /* make sure our flow control settings are restored */
6591 ret
= i40e_set_fc(&pf
->hw
, &set_fc_aq_fail
, true);
6593 dev_info(&pf
->pdev
->dev
, "set fc fail, err %s aq_err %s\n",
6594 i40e_stat_str(&pf
->hw
, ret
),
6595 i40e_aq_str(&pf
->hw
, pf
->hw
.aq
.asq_last_status
));
6597 /* Rebuild the VSIs and VEBs that existed before reset.
6598 * They are still in our local switch element arrays, so only
6599 * need to rebuild the switch model in the HW.
6601 * If there were VEBs but the reconstitution failed, we'll try
6602 * try to recover minimal use by getting the basic PF VSI working.
6604 if (pf
->vsi
[pf
->lan_vsi
]->uplink_seid
!= pf
->mac_seid
) {
6605 dev_dbg(&pf
->pdev
->dev
, "attempting to rebuild switch\n");
6606 /* find the one VEB connected to the MAC, and find orphans */
6607 for (v
= 0; v
< I40E_MAX_VEB
; v
++) {
6611 if (pf
->veb
[v
]->uplink_seid
== pf
->mac_seid
||
6612 pf
->veb
[v
]->uplink_seid
== 0) {
6613 ret
= i40e_reconstitute_veb(pf
->veb
[v
]);
6618 /* If Main VEB failed, we're in deep doodoo,
6619 * so give up rebuilding the switch and set up
6620 * for minimal rebuild of PF VSI.
6621 * If orphan failed, we'll report the error
6622 * but try to keep going.
6624 if (pf
->veb
[v
]->uplink_seid
== pf
->mac_seid
) {
6625 dev_info(&pf
->pdev
->dev
,
6626 "rebuild of switch failed: %d, will try to set up simple PF connection\n",
6628 pf
->vsi
[pf
->lan_vsi
]->uplink_seid
6631 } else if (pf
->veb
[v
]->uplink_seid
== 0) {
6632 dev_info(&pf
->pdev
->dev
,
6633 "rebuild of orphan VEB failed: %d\n",
6640 if (pf
->vsi
[pf
->lan_vsi
]->uplink_seid
== pf
->mac_seid
) {
6641 dev_dbg(&pf
->pdev
->dev
, "attempting to rebuild PF VSI\n");
6642 /* no VEB, so rebuild only the Main VSI */
6643 ret
= i40e_add_vsi(pf
->vsi
[pf
->lan_vsi
]);
6645 dev_info(&pf
->pdev
->dev
,
6646 "rebuild of Main VSI failed: %d\n", ret
);
6647 goto end_core_reset
;
6651 if (((pf
->hw
.aq
.fw_maj_ver
== 4) && (pf
->hw
.aq
.fw_min_ver
< 33)) ||
6652 (pf
->hw
.aq
.fw_maj_ver
< 4)) {
6654 ret
= i40e_aq_set_link_restart_an(&pf
->hw
, true, NULL
);
6656 dev_info(&pf
->pdev
->dev
, "link restart failed, err %s aq_err %s\n",
6657 i40e_stat_str(&pf
->hw
, ret
),
6658 i40e_aq_str(&pf
->hw
,
6659 pf
->hw
.aq
.asq_last_status
));
6661 /* reinit the misc interrupt */
6662 if (pf
->flags
& I40E_FLAG_MSIX_ENABLED
)
6663 ret
= i40e_setup_misc_vector(pf
);
6665 /* restart the VSIs that were rebuilt and running before the reset */
6666 i40e_pf_unquiesce_all_vsi(pf
);
6668 if (pf
->num_alloc_vfs
) {
6669 for (v
= 0; v
< pf
->num_alloc_vfs
; v
++)
6670 i40e_reset_vf(&pf
->vf
[v
], true);
6673 /* tell the firmware that we're starting */
6674 i40e_send_version(pf
);
6677 clear_bit(__I40E_RESET_FAILED
, &pf
->state
);
6679 clear_bit(__I40E_RESET_RECOVERY_PENDING
, &pf
->state
);
6683 * i40e_handle_reset_warning - prep for the PF to reset, reset and rebuild
6684 * @pf: board private structure
6686 * Close up the VFs and other things in prep for a Core Reset,
6687 * then get ready to rebuild the world.
6689 static void i40e_handle_reset_warning(struct i40e_pf
*pf
)
6691 i40e_prep_for_reset(pf
);
6692 i40e_reset_and_rebuild(pf
, false);
6696 * i40e_handle_mdd_event
6697 * @pf: pointer to the PF structure
6699 * Called from the MDD irq handler to identify possibly malicious vfs
6701 static void i40e_handle_mdd_event(struct i40e_pf
*pf
)
6703 struct i40e_hw
*hw
= &pf
->hw
;
6704 bool mdd_detected
= false;
6705 bool pf_mdd_detected
= false;
6710 if (!test_bit(__I40E_MDD_EVENT_PENDING
, &pf
->state
))
6713 /* find what triggered the MDD event */
6714 reg
= rd32(hw
, I40E_GL_MDET_TX
);
6715 if (reg
& I40E_GL_MDET_TX_VALID_MASK
) {
6716 u8 pf_num
= (reg
& I40E_GL_MDET_TX_PF_NUM_MASK
) >>
6717 I40E_GL_MDET_TX_PF_NUM_SHIFT
;
6718 u16 vf_num
= (reg
& I40E_GL_MDET_TX_VF_NUM_MASK
) >>
6719 I40E_GL_MDET_TX_VF_NUM_SHIFT
;
6720 u8 event
= (reg
& I40E_GL_MDET_TX_EVENT_MASK
) >>
6721 I40E_GL_MDET_TX_EVENT_SHIFT
;
6722 u16 queue
= ((reg
& I40E_GL_MDET_TX_QUEUE_MASK
) >>
6723 I40E_GL_MDET_TX_QUEUE_SHIFT
) -
6724 pf
->hw
.func_caps
.base_queue
;
6725 if (netif_msg_tx_err(pf
))
6726 dev_info(&pf
->pdev
->dev
, "Malicious Driver Detection event 0x%02x on TX queue %d PF number 0x%02x VF number 0x%02x\n",
6727 event
, queue
, pf_num
, vf_num
);
6728 wr32(hw
, I40E_GL_MDET_TX
, 0xffffffff);
6729 mdd_detected
= true;
6731 reg
= rd32(hw
, I40E_GL_MDET_RX
);
6732 if (reg
& I40E_GL_MDET_RX_VALID_MASK
) {
6733 u8 func
= (reg
& I40E_GL_MDET_RX_FUNCTION_MASK
) >>
6734 I40E_GL_MDET_RX_FUNCTION_SHIFT
;
6735 u8 event
= (reg
& I40E_GL_MDET_RX_EVENT_MASK
) >>
6736 I40E_GL_MDET_RX_EVENT_SHIFT
;
6737 u16 queue
= ((reg
& I40E_GL_MDET_RX_QUEUE_MASK
) >>
6738 I40E_GL_MDET_RX_QUEUE_SHIFT
) -
6739 pf
->hw
.func_caps
.base_queue
;
6740 if (netif_msg_rx_err(pf
))
6741 dev_info(&pf
->pdev
->dev
, "Malicious Driver Detection event 0x%02x on RX queue %d of function 0x%02x\n",
6742 event
, queue
, func
);
6743 wr32(hw
, I40E_GL_MDET_RX
, 0xffffffff);
6744 mdd_detected
= true;
6748 reg
= rd32(hw
, I40E_PF_MDET_TX
);
6749 if (reg
& I40E_PF_MDET_TX_VALID_MASK
) {
6750 wr32(hw
, I40E_PF_MDET_TX
, 0xFFFF);
6751 dev_info(&pf
->pdev
->dev
, "TX driver issue detected, PF reset issued\n");
6752 pf_mdd_detected
= true;
6754 reg
= rd32(hw
, I40E_PF_MDET_RX
);
6755 if (reg
& I40E_PF_MDET_RX_VALID_MASK
) {
6756 wr32(hw
, I40E_PF_MDET_RX
, 0xFFFF);
6757 dev_info(&pf
->pdev
->dev
, "RX driver issue detected, PF reset issued\n");
6758 pf_mdd_detected
= true;
6760 /* Queue belongs to the PF, initiate a reset */
6761 if (pf_mdd_detected
) {
6762 set_bit(__I40E_PF_RESET_REQUESTED
, &pf
->state
);
6763 i40e_service_event_schedule(pf
);
6767 /* see if one of the VFs needs its hand slapped */
6768 for (i
= 0; i
< pf
->num_alloc_vfs
&& mdd_detected
; i
++) {
6770 reg
= rd32(hw
, I40E_VP_MDET_TX(i
));
6771 if (reg
& I40E_VP_MDET_TX_VALID_MASK
) {
6772 wr32(hw
, I40E_VP_MDET_TX(i
), 0xFFFF);
6773 vf
->num_mdd_events
++;
6774 dev_info(&pf
->pdev
->dev
, "TX driver issue detected on VF %d\n",
6778 reg
= rd32(hw
, I40E_VP_MDET_RX(i
));
6779 if (reg
& I40E_VP_MDET_RX_VALID_MASK
) {
6780 wr32(hw
, I40E_VP_MDET_RX(i
), 0xFFFF);
6781 vf
->num_mdd_events
++;
6782 dev_info(&pf
->pdev
->dev
, "RX driver issue detected on VF %d\n",
6786 if (vf
->num_mdd_events
> I40E_DEFAULT_NUM_MDD_EVENTS_ALLOWED
) {
6787 dev_info(&pf
->pdev
->dev
,
6788 "Too many MDD events on VF %d, disabled\n", i
);
6789 dev_info(&pf
->pdev
->dev
,
6790 "Use PF Control I/F to re-enable the VF\n");
6791 set_bit(I40E_VF_STAT_DISABLED
, &vf
->vf_states
);
6795 /* re-enable mdd interrupt cause */
6796 clear_bit(__I40E_MDD_EVENT_PENDING
, &pf
->state
);
6797 reg
= rd32(hw
, I40E_PFINT_ICR0_ENA
);
6798 reg
|= I40E_PFINT_ICR0_ENA_MAL_DETECT_MASK
;
6799 wr32(hw
, I40E_PFINT_ICR0_ENA
, reg
);
6803 #ifdef CONFIG_I40E_VXLAN
6805 * i40e_sync_vxlan_filters_subtask - Sync the VSI filter list with HW
6806 * @pf: board private structure
6808 static void i40e_sync_vxlan_filters_subtask(struct i40e_pf
*pf
)
6810 struct i40e_hw
*hw
= &pf
->hw
;
6815 if (!(pf
->flags
& I40E_FLAG_VXLAN_FILTER_SYNC
))
6818 pf
->flags
&= ~I40E_FLAG_VXLAN_FILTER_SYNC
;
6820 for (i
= 0; i
< I40E_MAX_PF_UDP_OFFLOAD_PORTS
; i
++) {
6821 if (pf
->pending_vxlan_bitmap
& BIT_ULL(i
)) {
6822 pf
->pending_vxlan_bitmap
&= ~BIT_ULL(i
);
6823 port
= pf
->vxlan_ports
[i
];
6825 ret
= i40e_aq_add_udp_tunnel(hw
, ntohs(port
),
6826 I40E_AQC_TUNNEL_TYPE_VXLAN
,
6829 ret
= i40e_aq_del_udp_tunnel(hw
, i
, NULL
);
6832 dev_info(&pf
->pdev
->dev
,
6833 "%s vxlan port %d, index %d failed, err %s aq_err %s\n",
6834 port
? "add" : "delete",
6836 i40e_stat_str(&pf
->hw
, ret
),
6837 i40e_aq_str(&pf
->hw
,
6838 pf
->hw
.aq
.asq_last_status
));
6839 pf
->vxlan_ports
[i
] = 0;
6847 * i40e_service_task - Run the driver's async subtasks
6848 * @work: pointer to work_struct containing our data
6850 static void i40e_service_task(struct work_struct
*work
)
6852 struct i40e_pf
*pf
= container_of(work
,
6855 unsigned long start_time
= jiffies
;
6857 /* don't bother with service tasks if a reset is in progress */
6858 if (test_bit(__I40E_RESET_RECOVERY_PENDING
, &pf
->state
)) {
6859 i40e_service_event_complete(pf
);
6863 i40e_detect_recover_hung(pf
);
6864 i40e_reset_subtask(pf
);
6865 i40e_handle_mdd_event(pf
);
6866 i40e_vc_process_vflr_event(pf
);
6867 i40e_watchdog_subtask(pf
);
6868 i40e_fdir_reinit_subtask(pf
);
6869 i40e_sync_filters_subtask(pf
);
6870 #ifdef CONFIG_I40E_VXLAN
6871 i40e_sync_vxlan_filters_subtask(pf
);
6873 i40e_clean_adminq_subtask(pf
);
6875 i40e_service_event_complete(pf
);
6877 /* If the tasks have taken longer than one timer cycle or there
6878 * is more work to be done, reschedule the service task now
6879 * rather than wait for the timer to tick again.
6881 if (time_after(jiffies
, (start_time
+ pf
->service_timer_period
)) ||
6882 test_bit(__I40E_ADMINQ_EVENT_PENDING
, &pf
->state
) ||
6883 test_bit(__I40E_MDD_EVENT_PENDING
, &pf
->state
) ||
6884 test_bit(__I40E_VFLR_EVENT_PENDING
, &pf
->state
))
6885 i40e_service_event_schedule(pf
);
6889 * i40e_service_timer - timer callback
6890 * @data: pointer to PF struct
6892 static void i40e_service_timer(unsigned long data
)
6894 struct i40e_pf
*pf
= (struct i40e_pf
*)data
;
6896 mod_timer(&pf
->service_timer
,
6897 round_jiffies(jiffies
+ pf
->service_timer_period
));
6898 i40e_service_event_schedule(pf
);
6902 * i40e_set_num_rings_in_vsi - Determine number of rings in the VSI
6903 * @vsi: the VSI being configured
6905 static int i40e_set_num_rings_in_vsi(struct i40e_vsi
*vsi
)
6907 struct i40e_pf
*pf
= vsi
->back
;
6909 switch (vsi
->type
) {
6911 vsi
->alloc_queue_pairs
= pf
->num_lan_qps
;
6912 vsi
->num_desc
= ALIGN(I40E_DEFAULT_NUM_DESCRIPTORS
,
6913 I40E_REQ_DESCRIPTOR_MULTIPLE
);
6914 if (pf
->flags
& I40E_FLAG_MSIX_ENABLED
)
6915 vsi
->num_q_vectors
= pf
->num_lan_msix
;
6917 vsi
->num_q_vectors
= 1;
6922 vsi
->alloc_queue_pairs
= 1;
6923 vsi
->num_desc
= ALIGN(I40E_FDIR_RING_COUNT
,
6924 I40E_REQ_DESCRIPTOR_MULTIPLE
);
6925 vsi
->num_q_vectors
= 1;
6928 case I40E_VSI_VMDQ2
:
6929 vsi
->alloc_queue_pairs
= pf
->num_vmdq_qps
;
6930 vsi
->num_desc
= ALIGN(I40E_DEFAULT_NUM_DESCRIPTORS
,
6931 I40E_REQ_DESCRIPTOR_MULTIPLE
);
6932 vsi
->num_q_vectors
= pf
->num_vmdq_msix
;
6935 case I40E_VSI_SRIOV
:
6936 vsi
->alloc_queue_pairs
= pf
->num_vf_qps
;
6937 vsi
->num_desc
= ALIGN(I40E_DEFAULT_NUM_DESCRIPTORS
,
6938 I40E_REQ_DESCRIPTOR_MULTIPLE
);
6943 vsi
->alloc_queue_pairs
= pf
->num_fcoe_qps
;
6944 vsi
->num_desc
= ALIGN(I40E_DEFAULT_NUM_DESCRIPTORS
,
6945 I40E_REQ_DESCRIPTOR_MULTIPLE
);
6946 vsi
->num_q_vectors
= pf
->num_fcoe_msix
;
6949 #endif /* I40E_FCOE */
6959 * i40e_vsi_alloc_arrays - Allocate queue and vector pointer arrays for the vsi
6960 * @type: VSI pointer
6961 * @alloc_qvectors: a bool to specify if q_vectors need to be allocated.
6963 * On error: returns error code (negative)
6964 * On success: returns 0
6966 static int i40e_vsi_alloc_arrays(struct i40e_vsi
*vsi
, bool alloc_qvectors
)
6971 /* allocate memory for both Tx and Rx ring pointers */
6972 size
= sizeof(struct i40e_ring
*) * vsi
->alloc_queue_pairs
* 2;
6973 vsi
->tx_rings
= kzalloc(size
, GFP_KERNEL
);
6976 vsi
->rx_rings
= &vsi
->tx_rings
[vsi
->alloc_queue_pairs
];
6978 if (alloc_qvectors
) {
6979 /* allocate memory for q_vector pointers */
6980 size
= sizeof(struct i40e_q_vector
*) * vsi
->num_q_vectors
;
6981 vsi
->q_vectors
= kzalloc(size
, GFP_KERNEL
);
6982 if (!vsi
->q_vectors
) {
6990 kfree(vsi
->tx_rings
);
6995 * i40e_vsi_mem_alloc - Allocates the next available struct vsi in the PF
6996 * @pf: board private structure
6997 * @type: type of VSI
6999 * On error: returns error code (negative)
7000 * On success: returns vsi index in PF (positive)
7002 static int i40e_vsi_mem_alloc(struct i40e_pf
*pf
, enum i40e_vsi_type type
)
7005 struct i40e_vsi
*vsi
;
7009 /* Need to protect the allocation of the VSIs at the PF level */
7010 mutex_lock(&pf
->switch_mutex
);
7012 /* VSI list may be fragmented if VSI creation/destruction has
7013 * been happening. We can afford to do a quick scan to look
7014 * for any free VSIs in the list.
7016 * find next empty vsi slot, looping back around if necessary
7019 while (i
< pf
->num_alloc_vsi
&& pf
->vsi
[i
])
7021 if (i
>= pf
->num_alloc_vsi
) {
7023 while (i
< pf
->next_vsi
&& pf
->vsi
[i
])
7027 if (i
< pf
->num_alloc_vsi
&& !pf
->vsi
[i
]) {
7028 vsi_idx
= i
; /* Found one! */
7031 goto unlock_pf
; /* out of VSI slots! */
7035 vsi
= kzalloc(sizeof(*vsi
), GFP_KERNEL
);
7042 set_bit(__I40E_DOWN
, &vsi
->state
);
7045 vsi
->rx_itr_setting
= pf
->rx_itr_default
;
7046 vsi
->tx_itr_setting
= pf
->tx_itr_default
;
7047 vsi
->rss_table_size
= (vsi
->type
== I40E_VSI_MAIN
) ?
7048 pf
->rss_table_size
: 64;
7049 vsi
->netdev_registered
= false;
7050 vsi
->work_limit
= I40E_DEFAULT_IRQ_WORK
;
7051 INIT_LIST_HEAD(&vsi
->mac_filter_list
);
7052 vsi
->irqs_ready
= false;
7054 ret
= i40e_set_num_rings_in_vsi(vsi
);
7058 ret
= i40e_vsi_alloc_arrays(vsi
, true);
7062 /* Setup default MSIX irq handler for VSI */
7063 i40e_vsi_setup_irqhandler(vsi
, i40e_msix_clean_rings
);
7065 pf
->vsi
[vsi_idx
] = vsi
;
7070 pf
->next_vsi
= i
- 1;
7073 mutex_unlock(&pf
->switch_mutex
);
7078 * i40e_vsi_free_arrays - Free queue and vector pointer arrays for the VSI
7079 * @type: VSI pointer
7080 * @free_qvectors: a bool to specify if q_vectors need to be freed.
7082 * On error: returns error code (negative)
7083 * On success: returns 0
7085 static void i40e_vsi_free_arrays(struct i40e_vsi
*vsi
, bool free_qvectors
)
7087 /* free the ring and vector containers */
7088 if (free_qvectors
) {
7089 kfree(vsi
->q_vectors
);
7090 vsi
->q_vectors
= NULL
;
7092 kfree(vsi
->tx_rings
);
7093 vsi
->tx_rings
= NULL
;
7094 vsi
->rx_rings
= NULL
;
7098 * i40e_vsi_clear - Deallocate the VSI provided
7099 * @vsi: the VSI being un-configured
7101 static int i40e_vsi_clear(struct i40e_vsi
*vsi
)
7112 mutex_lock(&pf
->switch_mutex
);
7113 if (!pf
->vsi
[vsi
->idx
]) {
7114 dev_err(&pf
->pdev
->dev
, "pf->vsi[%d] is NULL, just free vsi[%d](%p,type %d)\n",
7115 vsi
->idx
, vsi
->idx
, vsi
, vsi
->type
);
7119 if (pf
->vsi
[vsi
->idx
] != vsi
) {
7120 dev_err(&pf
->pdev
->dev
,
7121 "pf->vsi[%d](%p, type %d) != vsi[%d](%p,type %d): no free!\n",
7122 pf
->vsi
[vsi
->idx
]->idx
,
7124 pf
->vsi
[vsi
->idx
]->type
,
7125 vsi
->idx
, vsi
, vsi
->type
);
7129 /* updates the PF for this cleared vsi */
7130 i40e_put_lump(pf
->qp_pile
, vsi
->base_queue
, vsi
->idx
);
7131 i40e_put_lump(pf
->irq_pile
, vsi
->base_vector
, vsi
->idx
);
7133 i40e_vsi_free_arrays(vsi
, true);
7135 pf
->vsi
[vsi
->idx
] = NULL
;
7136 if (vsi
->idx
< pf
->next_vsi
)
7137 pf
->next_vsi
= vsi
->idx
;
7140 mutex_unlock(&pf
->switch_mutex
);
7148 * i40e_vsi_clear_rings - Deallocates the Rx and Tx rings for the provided VSI
7149 * @vsi: the VSI being cleaned
7151 static void i40e_vsi_clear_rings(struct i40e_vsi
*vsi
)
7155 if (vsi
->tx_rings
&& vsi
->tx_rings
[0]) {
7156 for (i
= 0; i
< vsi
->alloc_queue_pairs
; i
++) {
7157 kfree_rcu(vsi
->tx_rings
[i
], rcu
);
7158 vsi
->tx_rings
[i
] = NULL
;
7159 vsi
->rx_rings
[i
] = NULL
;
7165 * i40e_alloc_rings - Allocates the Rx and Tx rings for the provided VSI
7166 * @vsi: the VSI being configured
7168 static int i40e_alloc_rings(struct i40e_vsi
*vsi
)
7170 struct i40e_ring
*tx_ring
, *rx_ring
;
7171 struct i40e_pf
*pf
= vsi
->back
;
7174 /* Set basic values in the rings to be used later during open() */
7175 for (i
= 0; i
< vsi
->alloc_queue_pairs
; i
++) {
7176 /* allocate space for both Tx and Rx in one shot */
7177 tx_ring
= kzalloc(sizeof(struct i40e_ring
) * 2, GFP_KERNEL
);
7181 tx_ring
->queue_index
= i
;
7182 tx_ring
->reg_idx
= vsi
->base_queue
+ i
;
7183 tx_ring
->ring_active
= false;
7185 tx_ring
->netdev
= vsi
->netdev
;
7186 tx_ring
->dev
= &pf
->pdev
->dev
;
7187 tx_ring
->count
= vsi
->num_desc
;
7189 tx_ring
->dcb_tc
= 0;
7190 if (vsi
->back
->flags
& I40E_FLAG_WB_ON_ITR_CAPABLE
)
7191 tx_ring
->flags
= I40E_TXR_FLAGS_WB_ON_ITR
;
7192 if (vsi
->back
->flags
& I40E_FLAG_OUTER_UDP_CSUM_CAPABLE
)
7193 tx_ring
->flags
|= I40E_TXR_FLAGS_OUTER_UDP_CSUM
;
7194 vsi
->tx_rings
[i
] = tx_ring
;
7196 rx_ring
= &tx_ring
[1];
7197 rx_ring
->queue_index
= i
;
7198 rx_ring
->reg_idx
= vsi
->base_queue
+ i
;
7199 rx_ring
->ring_active
= false;
7201 rx_ring
->netdev
= vsi
->netdev
;
7202 rx_ring
->dev
= &pf
->pdev
->dev
;
7203 rx_ring
->count
= vsi
->num_desc
;
7205 rx_ring
->dcb_tc
= 0;
7206 if (pf
->flags
& I40E_FLAG_16BYTE_RX_DESC_ENABLED
)
7207 set_ring_16byte_desc_enabled(rx_ring
);
7209 clear_ring_16byte_desc_enabled(rx_ring
);
7210 vsi
->rx_rings
[i
] = rx_ring
;
7216 i40e_vsi_clear_rings(vsi
);
7221 * i40e_reserve_msix_vectors - Reserve MSI-X vectors in the kernel
7222 * @pf: board private structure
7223 * @vectors: the number of MSI-X vectors to request
7225 * Returns the number of vectors reserved, or error
7227 static int i40e_reserve_msix_vectors(struct i40e_pf
*pf
, int vectors
)
7229 vectors
= pci_enable_msix_range(pf
->pdev
, pf
->msix_entries
,
7230 I40E_MIN_MSIX
, vectors
);
7232 dev_info(&pf
->pdev
->dev
,
7233 "MSI-X vector reservation failed: %d\n", vectors
);
7241 * i40e_init_msix - Setup the MSIX capability
7242 * @pf: board private structure
7244 * Work with the OS to set up the MSIX vectors needed.
7246 * Returns the number of vectors reserved or negative on failure
7248 static int i40e_init_msix(struct i40e_pf
*pf
)
7250 struct i40e_hw
*hw
= &pf
->hw
;
7255 if (!(pf
->flags
& I40E_FLAG_MSIX_ENABLED
))
7258 /* The number of vectors we'll request will be comprised of:
7259 * - Add 1 for "other" cause for Admin Queue events, etc.
7260 * - The number of LAN queue pairs
7261 * - Queues being used for RSS.
7262 * We don't need as many as max_rss_size vectors.
7263 * use rss_size instead in the calculation since that
7264 * is governed by number of cpus in the system.
7265 * - assumes symmetric Tx/Rx pairing
7266 * - The number of VMDq pairs
7268 * - The number of FCOE qps.
7270 * Once we count this up, try the request.
7272 * If we can't get what we want, we'll simplify to nearly nothing
7273 * and try again. If that still fails, we punt.
7275 vectors_left
= hw
->func_caps
.num_msix_vectors
;
7278 /* reserve one vector for miscellaneous handler */
7284 /* reserve vectors for the main PF traffic queues */
7285 pf
->num_lan_msix
= min_t(int, num_online_cpus(), vectors_left
);
7286 vectors_left
-= pf
->num_lan_msix
;
7287 v_budget
+= pf
->num_lan_msix
;
7289 /* reserve one vector for sideband flow director */
7290 if (pf
->flags
& I40E_FLAG_FD_SB_ENABLED
) {
7295 pf
->flags
&= ~I40E_FLAG_FD_SB_ENABLED
;
7300 /* can we reserve enough for FCoE? */
7301 if (pf
->flags
& I40E_FLAG_FCOE_ENABLED
) {
7303 pf
->num_fcoe_msix
= 0;
7304 else if (vectors_left
>= pf
->num_fcoe_qps
)
7305 pf
->num_fcoe_msix
= pf
->num_fcoe_qps
;
7307 pf
->num_fcoe_msix
= 1;
7308 v_budget
+= pf
->num_fcoe_msix
;
7309 vectors_left
-= pf
->num_fcoe_msix
;
7313 /* any vectors left over go for VMDq support */
7314 if (pf
->flags
& I40E_FLAG_VMDQ_ENABLED
) {
7315 int vmdq_vecs_wanted
= pf
->num_vmdq_vsis
* pf
->num_vmdq_qps
;
7316 int vmdq_vecs
= min_t(int, vectors_left
, vmdq_vecs_wanted
);
7318 /* if we're short on vectors for what's desired, we limit
7319 * the queues per vmdq. If this is still more than are
7320 * available, the user will need to change the number of
7321 * queues/vectors used by the PF later with the ethtool
7324 if (vmdq_vecs
< vmdq_vecs_wanted
)
7325 pf
->num_vmdq_qps
= 1;
7326 pf
->num_vmdq_msix
= pf
->num_vmdq_qps
;
7328 v_budget
+= vmdq_vecs
;
7329 vectors_left
-= vmdq_vecs
;
7332 pf
->msix_entries
= kcalloc(v_budget
, sizeof(struct msix_entry
),
7334 if (!pf
->msix_entries
)
7337 for (i
= 0; i
< v_budget
; i
++)
7338 pf
->msix_entries
[i
].entry
= i
;
7339 v_actual
= i40e_reserve_msix_vectors(pf
, v_budget
);
7341 if (v_actual
!= v_budget
) {
7342 /* If we have limited resources, we will start with no vectors
7343 * for the special features and then allocate vectors to some
7344 * of these features based on the policy and at the end disable
7345 * the features that did not get any vectors.
7348 pf
->num_fcoe_qps
= 0;
7349 pf
->num_fcoe_msix
= 0;
7351 pf
->num_vmdq_msix
= 0;
7354 if (v_actual
< I40E_MIN_MSIX
) {
7355 pf
->flags
&= ~I40E_FLAG_MSIX_ENABLED
;
7356 kfree(pf
->msix_entries
);
7357 pf
->msix_entries
= NULL
;
7360 } else if (v_actual
== I40E_MIN_MSIX
) {
7361 /* Adjust for minimal MSIX use */
7362 pf
->num_vmdq_vsis
= 0;
7363 pf
->num_vmdq_qps
= 0;
7364 pf
->num_lan_qps
= 1;
7365 pf
->num_lan_msix
= 1;
7367 } else if (v_actual
!= v_budget
) {
7370 /* reserve the misc vector */
7373 /* Scale vector usage down */
7374 pf
->num_vmdq_msix
= 1; /* force VMDqs to only one vector */
7375 pf
->num_vmdq_vsis
= 1;
7376 pf
->num_vmdq_qps
= 1;
7377 pf
->flags
&= ~I40E_FLAG_FD_SB_ENABLED
;
7379 /* partition out the remaining vectors */
7382 pf
->num_lan_msix
= 1;
7386 /* give one vector to FCoE */
7387 if (pf
->flags
& I40E_FLAG_FCOE_ENABLED
) {
7388 pf
->num_lan_msix
= 1;
7389 pf
->num_fcoe_msix
= 1;
7392 pf
->num_lan_msix
= 2;
7397 /* give one vector to FCoE */
7398 if (pf
->flags
& I40E_FLAG_FCOE_ENABLED
) {
7399 pf
->num_fcoe_msix
= 1;
7403 /* give the rest to the PF */
7404 pf
->num_lan_msix
= min_t(int, vec
, pf
->num_lan_qps
);
7409 if ((pf
->flags
& I40E_FLAG_VMDQ_ENABLED
) &&
7410 (pf
->num_vmdq_msix
== 0)) {
7411 dev_info(&pf
->pdev
->dev
, "VMDq disabled, not enough MSI-X vectors\n");
7412 pf
->flags
&= ~I40E_FLAG_VMDQ_ENABLED
;
7416 if ((pf
->flags
& I40E_FLAG_FCOE_ENABLED
) && (pf
->num_fcoe_msix
== 0)) {
7417 dev_info(&pf
->pdev
->dev
, "FCOE disabled, not enough MSI-X vectors\n");
7418 pf
->flags
&= ~I40E_FLAG_FCOE_ENABLED
;
7425 * i40e_vsi_alloc_q_vector - Allocate memory for a single interrupt vector
7426 * @vsi: the VSI being configured
7427 * @v_idx: index of the vector in the vsi struct
7429 * We allocate one q_vector. If allocation fails we return -ENOMEM.
7431 static int i40e_vsi_alloc_q_vector(struct i40e_vsi
*vsi
, int v_idx
)
7433 struct i40e_q_vector
*q_vector
;
7435 /* allocate q_vector */
7436 q_vector
= kzalloc(sizeof(struct i40e_q_vector
), GFP_KERNEL
);
7440 q_vector
->vsi
= vsi
;
7441 q_vector
->v_idx
= v_idx
;
7442 cpumask_set_cpu(v_idx
, &q_vector
->affinity_mask
);
7444 netif_napi_add(vsi
->netdev
, &q_vector
->napi
,
7445 i40e_napi_poll
, NAPI_POLL_WEIGHT
);
7447 q_vector
->rx
.latency_range
= I40E_LOW_LATENCY
;
7448 q_vector
->tx
.latency_range
= I40E_LOW_LATENCY
;
7450 /* tie q_vector and vsi together */
7451 vsi
->q_vectors
[v_idx
] = q_vector
;
7457 * i40e_vsi_alloc_q_vectors - Allocate memory for interrupt vectors
7458 * @vsi: the VSI being configured
7460 * We allocate one q_vector per queue interrupt. If allocation fails we
7463 static int i40e_vsi_alloc_q_vectors(struct i40e_vsi
*vsi
)
7465 struct i40e_pf
*pf
= vsi
->back
;
7466 int v_idx
, num_q_vectors
;
7469 /* if not MSIX, give the one vector only to the LAN VSI */
7470 if (pf
->flags
& I40E_FLAG_MSIX_ENABLED
)
7471 num_q_vectors
= vsi
->num_q_vectors
;
7472 else if (vsi
== pf
->vsi
[pf
->lan_vsi
])
7477 for (v_idx
= 0; v_idx
< num_q_vectors
; v_idx
++) {
7478 err
= i40e_vsi_alloc_q_vector(vsi
, v_idx
);
7487 i40e_free_q_vector(vsi
, v_idx
);
7493 * i40e_init_interrupt_scheme - Determine proper interrupt scheme
7494 * @pf: board private structure to initialize
7496 static int i40e_init_interrupt_scheme(struct i40e_pf
*pf
)
7501 if (pf
->flags
& I40E_FLAG_MSIX_ENABLED
) {
7502 vectors
= i40e_init_msix(pf
);
7504 pf
->flags
&= ~(I40E_FLAG_MSIX_ENABLED
|
7506 I40E_FLAG_FCOE_ENABLED
|
7508 I40E_FLAG_RSS_ENABLED
|
7509 I40E_FLAG_DCB_CAPABLE
|
7510 I40E_FLAG_SRIOV_ENABLED
|
7511 I40E_FLAG_FD_SB_ENABLED
|
7512 I40E_FLAG_FD_ATR_ENABLED
|
7513 I40E_FLAG_VMDQ_ENABLED
);
7515 /* rework the queue expectations without MSIX */
7516 i40e_determine_queue_usage(pf
);
7520 if (!(pf
->flags
& I40E_FLAG_MSIX_ENABLED
) &&
7521 (pf
->flags
& I40E_FLAG_MSI_ENABLED
)) {
7522 dev_info(&pf
->pdev
->dev
, "MSI-X not available, trying MSI\n");
7523 vectors
= pci_enable_msi(pf
->pdev
);
7525 dev_info(&pf
->pdev
->dev
, "MSI init failed - %d\n",
7527 pf
->flags
&= ~I40E_FLAG_MSI_ENABLED
;
7529 vectors
= 1; /* one MSI or Legacy vector */
7532 if (!(pf
->flags
& (I40E_FLAG_MSIX_ENABLED
| I40E_FLAG_MSI_ENABLED
)))
7533 dev_info(&pf
->pdev
->dev
, "MSI-X and MSI not available, falling back to Legacy IRQ\n");
7535 /* set up vector assignment tracking */
7536 size
= sizeof(struct i40e_lump_tracking
) + (sizeof(u16
) * vectors
);
7537 pf
->irq_pile
= kzalloc(size
, GFP_KERNEL
);
7538 if (!pf
->irq_pile
) {
7539 dev_err(&pf
->pdev
->dev
, "error allocating irq_pile memory\n");
7542 pf
->irq_pile
->num_entries
= vectors
;
7543 pf
->irq_pile
->search_hint
= 0;
7545 /* track first vector for misc interrupts, ignore return */
7546 (void)i40e_get_lump(pf
, pf
->irq_pile
, 1, I40E_PILE_VALID_BIT
- 1);
7552 * i40e_setup_misc_vector - Setup the misc vector to handle non queue events
7553 * @pf: board private structure
7555 * This sets up the handler for MSIX 0, which is used to manage the
7556 * non-queue interrupts, e.g. AdminQ and errors. This is not used
7557 * when in MSI or Legacy interrupt mode.
7559 static int i40e_setup_misc_vector(struct i40e_pf
*pf
)
7561 struct i40e_hw
*hw
= &pf
->hw
;
7564 /* Only request the irq if this is the first time through, and
7565 * not when we're rebuilding after a Reset
7567 if (!test_bit(__I40E_RESET_RECOVERY_PENDING
, &pf
->state
)) {
7568 err
= request_irq(pf
->msix_entries
[0].vector
,
7569 i40e_intr
, 0, pf
->int_name
, pf
);
7571 dev_info(&pf
->pdev
->dev
,
7572 "request_irq for %s failed: %d\n",
7578 i40e_enable_misc_int_causes(pf
);
7580 /* associate no queues to the misc vector */
7581 wr32(hw
, I40E_PFINT_LNKLST0
, I40E_QUEUE_END_OF_LIST
);
7582 wr32(hw
, I40E_PFINT_ITR0(I40E_RX_ITR
), I40E_ITR_8K
);
7586 i40e_irq_dynamic_enable_icr0(pf
);
7592 * i40e_config_rss_aq - Prepare for RSS using AQ commands
7593 * @vsi: vsi structure
7594 * @seed: RSS hash seed
7596 static int i40e_config_rss_aq(struct i40e_vsi
*vsi
, const u8
*seed
)
7598 struct i40e_aqc_get_set_rss_key_data rss_key
;
7599 struct i40e_pf
*pf
= vsi
->back
;
7600 struct i40e_hw
*hw
= &pf
->hw
;
7601 bool pf_lut
= false;
7605 memset(&rss_key
, 0, sizeof(rss_key
));
7606 memcpy(&rss_key
, seed
, sizeof(rss_key
));
7608 rss_lut
= kzalloc(pf
->rss_table_size
, GFP_KERNEL
);
7612 /* Populate the LUT with max no. of queues in round robin fashion */
7613 for (i
= 0; i
< vsi
->rss_table_size
; i
++)
7614 rss_lut
[i
] = i
% vsi
->rss_size
;
7616 ret
= i40e_aq_set_rss_key(hw
, vsi
->id
, &rss_key
);
7618 dev_info(&pf
->pdev
->dev
,
7619 "Cannot set RSS key, err %s aq_err %s\n",
7620 i40e_stat_str(&pf
->hw
, ret
),
7621 i40e_aq_str(&pf
->hw
, pf
->hw
.aq
.asq_last_status
));
7622 goto config_rss_aq_out
;
7625 if (vsi
->type
== I40E_VSI_MAIN
)
7628 ret
= i40e_aq_set_rss_lut(hw
, vsi
->id
, pf_lut
, rss_lut
,
7629 vsi
->rss_table_size
);
7631 dev_info(&pf
->pdev
->dev
,
7632 "Cannot set RSS lut, err %s aq_err %s\n",
7633 i40e_stat_str(&pf
->hw
, ret
),
7634 i40e_aq_str(&pf
->hw
, pf
->hw
.aq
.asq_last_status
));
7642 * i40e_vsi_config_rss - Prepare for VSI(VMDq) RSS if used
7643 * @vsi: VSI structure
7645 static int i40e_vsi_config_rss(struct i40e_vsi
*vsi
)
7647 u8 seed
[I40E_HKEY_ARRAY_SIZE
];
7648 struct i40e_pf
*pf
= vsi
->back
;
7650 netdev_rss_key_fill((void *)seed
, I40E_HKEY_ARRAY_SIZE
);
7651 vsi
->rss_size
= min_t(int, pf
->rss_size
, vsi
->num_queue_pairs
);
7653 if (pf
->flags
& I40E_FLAG_RSS_AQ_CAPABLE
)
7654 return i40e_config_rss_aq(vsi
, seed
);
7660 * i40e_config_rss_reg - Prepare for RSS if used
7661 * @pf: board private structure
7662 * @seed: RSS hash seed
7664 static int i40e_config_rss_reg(struct i40e_pf
*pf
, const u8
*seed
)
7666 struct i40e_vsi
*vsi
= pf
->vsi
[pf
->lan_vsi
];
7667 struct i40e_hw
*hw
= &pf
->hw
;
7668 u32
*seed_dw
= (u32
*)seed
;
7669 u32 current_queue
= 0;
7673 /* Fill out hash function seed */
7674 for (i
= 0; i
<= I40E_PFQF_HKEY_MAX_INDEX
; i
++)
7675 wr32(hw
, I40E_PFQF_HKEY(i
), seed_dw
[i
]);
7677 for (i
= 0; i
<= I40E_PFQF_HLUT_MAX_INDEX
; i
++) {
7679 for (j
= 0; j
< 4; j
++) {
7680 if (current_queue
== vsi
->rss_size
)
7682 lut
|= ((current_queue
) << (8 * j
));
7685 wr32(&pf
->hw
, I40E_PFQF_HLUT(i
), lut
);
7693 * i40e_config_rss - Prepare for RSS if used
7694 * @pf: board private structure
7696 static int i40e_config_rss(struct i40e_pf
*pf
)
7698 struct i40e_vsi
*vsi
= pf
->vsi
[pf
->lan_vsi
];
7699 u8 seed
[I40E_HKEY_ARRAY_SIZE
];
7700 struct i40e_hw
*hw
= &pf
->hw
;
7704 netdev_rss_key_fill((void *)seed
, I40E_HKEY_ARRAY_SIZE
);
7706 /* By default we enable TCP/UDP with IPv4/IPv6 ptypes */
7707 hena
= (u64
)rd32(hw
, I40E_PFQF_HENA(0)) |
7708 ((u64
)rd32(hw
, I40E_PFQF_HENA(1)) << 32);
7709 hena
|= i40e_pf_get_default_rss_hena(pf
);
7711 wr32(hw
, I40E_PFQF_HENA(0), (u32
)hena
);
7712 wr32(hw
, I40E_PFQF_HENA(1), (u32
)(hena
>> 32));
7714 vsi
->rss_size
= min_t(int, pf
->rss_size
, vsi
->num_queue_pairs
);
7716 /* Determine the RSS table size based on the hardware capabilities */
7717 reg_val
= rd32(hw
, I40E_PFQF_CTL_0
);
7718 reg_val
= (pf
->rss_table_size
== 512) ?
7719 (reg_val
| I40E_PFQF_CTL_0_HASHLUTSIZE_512
) :
7720 (reg_val
& ~I40E_PFQF_CTL_0_HASHLUTSIZE_512
);
7721 wr32(hw
, I40E_PFQF_CTL_0
, reg_val
);
7723 if (pf
->flags
& I40E_FLAG_RSS_AQ_CAPABLE
)
7724 return i40e_config_rss_aq(pf
->vsi
[pf
->lan_vsi
], seed
);
7726 return i40e_config_rss_reg(pf
, seed
);
7730 * i40e_reconfig_rss_queues - change number of queues for rss and rebuild
7731 * @pf: board private structure
7732 * @queue_count: the requested queue count for rss.
7734 * returns 0 if rss is not enabled, if enabled returns the final rss queue
7735 * count which may be different from the requested queue count.
7737 int i40e_reconfig_rss_queues(struct i40e_pf
*pf
, int queue_count
)
7739 struct i40e_vsi
*vsi
= pf
->vsi
[pf
->lan_vsi
];
7742 if (!(pf
->flags
& I40E_FLAG_RSS_ENABLED
))
7745 new_rss_size
= min_t(int, queue_count
, pf
->rss_size_max
);
7747 if (queue_count
!= vsi
->num_queue_pairs
) {
7748 vsi
->req_queue_pairs
= queue_count
;
7749 i40e_prep_for_reset(pf
);
7751 pf
->rss_size
= new_rss_size
;
7753 i40e_reset_and_rebuild(pf
, true);
7754 i40e_config_rss(pf
);
7756 dev_info(&pf
->pdev
->dev
, "RSS count: %d\n", pf
->rss_size
);
7757 return pf
->rss_size
;
7761 * i40e_get_npar_bw_setting - Retrieve BW settings for this PF partition
7762 * @pf: board private structure
7764 i40e_status
i40e_get_npar_bw_setting(struct i40e_pf
*pf
)
7767 bool min_valid
, max_valid
;
7770 status
= i40e_read_bw_from_alt_ram(&pf
->hw
, &max_bw
, &min_bw
,
7771 &min_valid
, &max_valid
);
7775 pf
->npar_min_bw
= min_bw
;
7777 pf
->npar_max_bw
= max_bw
;
7784 * i40e_set_npar_bw_setting - Set BW settings for this PF partition
7785 * @pf: board private structure
7787 i40e_status
i40e_set_npar_bw_setting(struct i40e_pf
*pf
)
7789 struct i40e_aqc_configure_partition_bw_data bw_data
;
7792 /* Set the valid bit for this PF */
7793 bw_data
.pf_valid_bits
= cpu_to_le16(BIT(pf
->hw
.pf_id
));
7794 bw_data
.max_bw
[pf
->hw
.pf_id
] = pf
->npar_max_bw
& I40E_ALT_BW_VALUE_MASK
;
7795 bw_data
.min_bw
[pf
->hw
.pf_id
] = pf
->npar_min_bw
& I40E_ALT_BW_VALUE_MASK
;
7797 /* Set the new bandwidths */
7798 status
= i40e_aq_configure_partition_bw(&pf
->hw
, &bw_data
, NULL
);
7804 * i40e_commit_npar_bw_setting - Commit BW settings for this PF partition
7805 * @pf: board private structure
7807 i40e_status
i40e_commit_npar_bw_setting(struct i40e_pf
*pf
)
7809 /* Commit temporary BW setting to permanent NVM image */
7810 enum i40e_admin_queue_err last_aq_status
;
7814 if (pf
->hw
.partition_id
!= 1) {
7815 dev_info(&pf
->pdev
->dev
,
7816 "Commit BW only works on partition 1! This is partition %d",
7817 pf
->hw
.partition_id
);
7818 ret
= I40E_NOT_SUPPORTED
;
7822 /* Acquire NVM for read access */
7823 ret
= i40e_acquire_nvm(&pf
->hw
, I40E_RESOURCE_READ
);
7824 last_aq_status
= pf
->hw
.aq
.asq_last_status
;
7826 dev_info(&pf
->pdev
->dev
,
7827 "Cannot acquire NVM for read access, err %s aq_err %s\n",
7828 i40e_stat_str(&pf
->hw
, ret
),
7829 i40e_aq_str(&pf
->hw
, last_aq_status
));
7833 /* Read word 0x10 of NVM - SW compatibility word 1 */
7834 ret
= i40e_aq_read_nvm(&pf
->hw
,
7835 I40E_SR_NVM_CONTROL_WORD
,
7836 0x10, sizeof(nvm_word
), &nvm_word
,
7838 /* Save off last admin queue command status before releasing
7841 last_aq_status
= pf
->hw
.aq
.asq_last_status
;
7842 i40e_release_nvm(&pf
->hw
);
7844 dev_info(&pf
->pdev
->dev
, "NVM read error, err %s aq_err %s\n",
7845 i40e_stat_str(&pf
->hw
, ret
),
7846 i40e_aq_str(&pf
->hw
, last_aq_status
));
7850 /* Wait a bit for NVM release to complete */
7853 /* Acquire NVM for write access */
7854 ret
= i40e_acquire_nvm(&pf
->hw
, I40E_RESOURCE_WRITE
);
7855 last_aq_status
= pf
->hw
.aq
.asq_last_status
;
7857 dev_info(&pf
->pdev
->dev
,
7858 "Cannot acquire NVM for write access, err %s aq_err %s\n",
7859 i40e_stat_str(&pf
->hw
, ret
),
7860 i40e_aq_str(&pf
->hw
, last_aq_status
));
7863 /* Write it back out unchanged to initiate update NVM,
7864 * which will force a write of the shadow (alt) RAM to
7865 * the NVM - thus storing the bandwidth values permanently.
7867 ret
= i40e_aq_update_nvm(&pf
->hw
,
7868 I40E_SR_NVM_CONTROL_WORD
,
7869 0x10, sizeof(nvm_word
),
7870 &nvm_word
, true, NULL
);
7871 /* Save off last admin queue command status before releasing
7874 last_aq_status
= pf
->hw
.aq
.asq_last_status
;
7875 i40e_release_nvm(&pf
->hw
);
7877 dev_info(&pf
->pdev
->dev
,
7878 "BW settings NOT SAVED, err %s aq_err %s\n",
7879 i40e_stat_str(&pf
->hw
, ret
),
7880 i40e_aq_str(&pf
->hw
, last_aq_status
));
7887 * i40e_sw_init - Initialize general software structures (struct i40e_pf)
7888 * @pf: board private structure to initialize
7890 * i40e_sw_init initializes the Adapter private data structure.
7891 * Fields are initialized based on PCI device information and
7892 * OS network device settings (MTU size).
7894 static int i40e_sw_init(struct i40e_pf
*pf
)
7899 pf
->msg_enable
= netif_msg_init(I40E_DEFAULT_MSG_ENABLE
,
7900 (NETIF_MSG_DRV
|NETIF_MSG_PROBE
|NETIF_MSG_LINK
));
7901 pf
->hw
.debug_mask
= pf
->msg_enable
| I40E_DEBUG_DIAG
;
7902 if (debug
!= -1 && debug
!= I40E_DEFAULT_MSG_ENABLE
) {
7903 if (I40E_DEBUG_USER
& debug
)
7904 pf
->hw
.debug_mask
= debug
;
7905 pf
->msg_enable
= netif_msg_init((debug
& ~I40E_DEBUG_USER
),
7906 I40E_DEFAULT_MSG_ENABLE
);
7909 /* Set default capability flags */
7910 pf
->flags
= I40E_FLAG_RX_CSUM_ENABLED
|
7911 I40E_FLAG_MSI_ENABLED
|
7912 I40E_FLAG_MSIX_ENABLED
;
7914 if (iommu_present(&pci_bus_type
))
7915 pf
->flags
|= I40E_FLAG_RX_PS_ENABLED
;
7917 pf
->flags
|= I40E_FLAG_RX_1BUF_ENABLED
;
7919 /* Set default ITR */
7920 pf
->rx_itr_default
= I40E_ITR_DYNAMIC
| I40E_ITR_RX_DEF
;
7921 pf
->tx_itr_default
= I40E_ITR_DYNAMIC
| I40E_ITR_TX_DEF
;
7923 /* Depending on PF configurations, it is possible that the RSS
7924 * maximum might end up larger than the available queues
7926 pf
->rss_size_max
= BIT(pf
->hw
.func_caps
.rss_table_entry_width
);
7928 pf
->rss_table_size
= pf
->hw
.func_caps
.rss_table_size
;
7929 pf
->rss_size_max
= min_t(int, pf
->rss_size_max
,
7930 pf
->hw
.func_caps
.num_tx_qp
);
7931 if (pf
->hw
.func_caps
.rss
) {
7932 pf
->flags
|= I40E_FLAG_RSS_ENABLED
;
7933 pf
->rss_size
= min_t(int, pf
->rss_size_max
, num_online_cpus());
7936 /* MFP mode enabled */
7937 if (pf
->hw
.func_caps
.npar_enable
|| pf
->hw
.func_caps
.flex10_enable
) {
7938 pf
->flags
|= I40E_FLAG_MFP_ENABLED
;
7939 dev_info(&pf
->pdev
->dev
, "MFP mode Enabled\n");
7940 if (i40e_get_npar_bw_setting(pf
))
7941 dev_warn(&pf
->pdev
->dev
,
7942 "Could not get NPAR bw settings\n");
7944 dev_info(&pf
->pdev
->dev
,
7945 "Min BW = %8.8x, Max BW = %8.8x\n",
7946 pf
->npar_min_bw
, pf
->npar_max_bw
);
7949 /* FW/NVM is not yet fixed in this regard */
7950 if ((pf
->hw
.func_caps
.fd_filters_guaranteed
> 0) ||
7951 (pf
->hw
.func_caps
.fd_filters_best_effort
> 0)) {
7952 pf
->flags
|= I40E_FLAG_FD_ATR_ENABLED
;
7953 pf
->atr_sample_rate
= I40E_DEFAULT_ATR_SAMPLE_RATE
;
7954 if (!(pf
->flags
& I40E_FLAG_MFP_ENABLED
)) {
7955 pf
->flags
|= I40E_FLAG_FD_SB_ENABLED
;
7957 dev_info(&pf
->pdev
->dev
,
7958 "Flow Director Sideband mode Disabled in MFP mode\n");
7960 pf
->fdir_pf_filter_count
=
7961 pf
->hw
.func_caps
.fd_filters_guaranteed
;
7962 pf
->hw
.fdir_shared_filter_count
=
7963 pf
->hw
.func_caps
.fd_filters_best_effort
;
7966 if (pf
->hw
.func_caps
.vmdq
) {
7967 pf
->num_vmdq_vsis
= I40E_DEFAULT_NUM_VMDQ_VSI
;
7968 pf
->flags
|= I40E_FLAG_VMDQ_ENABLED
;
7972 i40e_init_pf_fcoe(pf
);
7974 #endif /* I40E_FCOE */
7975 #ifdef CONFIG_PCI_IOV
7976 if (pf
->hw
.func_caps
.num_vfs
&& pf
->hw
.partition_id
== 1) {
7977 pf
->num_vf_qps
= I40E_DEFAULT_QUEUES_PER_VF
;
7978 pf
->flags
|= I40E_FLAG_SRIOV_ENABLED
;
7979 pf
->num_req_vfs
= min_t(int,
7980 pf
->hw
.func_caps
.num_vfs
,
7983 #endif /* CONFIG_PCI_IOV */
7984 if (pf
->hw
.mac
.type
== I40E_MAC_X722
) {
7985 pf
->flags
|= I40E_FLAG_RSS_AQ_CAPABLE
|
7986 I40E_FLAG_128_QP_RSS_CAPABLE
|
7987 I40E_FLAG_HW_ATR_EVICT_CAPABLE
|
7988 I40E_FLAG_OUTER_UDP_CSUM_CAPABLE
|
7989 I40E_FLAG_WB_ON_ITR_CAPABLE
|
7990 I40E_FLAG_MULTIPLE_TCP_UDP_RSS_PCTYPE
;
7992 pf
->eeprom_version
= 0xDEAD;
7993 pf
->lan_veb
= I40E_NO_VEB
;
7994 pf
->lan_vsi
= I40E_NO_VSI
;
7996 /* By default FW has this off for performance reasons */
7997 pf
->flags
&= ~I40E_FLAG_VEB_STATS_ENABLED
;
7999 /* set up queue assignment tracking */
8000 size
= sizeof(struct i40e_lump_tracking
)
8001 + (sizeof(u16
) * pf
->hw
.func_caps
.num_tx_qp
);
8002 pf
->qp_pile
= kzalloc(size
, GFP_KERNEL
);
8007 pf
->qp_pile
->num_entries
= pf
->hw
.func_caps
.num_tx_qp
;
8008 pf
->qp_pile
->search_hint
= 0;
8010 pf
->tx_timeout_recovery_level
= 1;
8012 mutex_init(&pf
->switch_mutex
);
8014 /* If NPAR is enabled nudge the Tx scheduler */
8015 if (pf
->hw
.func_caps
.npar_enable
&& (!i40e_get_npar_bw_setting(pf
)))
8016 i40e_set_npar_bw_setting(pf
);
8023 * i40e_set_ntuple - set the ntuple feature flag and take action
8024 * @pf: board private structure to initialize
8025 * @features: the feature set that the stack is suggesting
8027 * returns a bool to indicate if reset needs to happen
8029 bool i40e_set_ntuple(struct i40e_pf
*pf
, netdev_features_t features
)
8031 bool need_reset
= false;
8033 /* Check if Flow Director n-tuple support was enabled or disabled. If
8034 * the state changed, we need to reset.
8036 if (features
& NETIF_F_NTUPLE
) {
8037 /* Enable filters and mark for reset */
8038 if (!(pf
->flags
& I40E_FLAG_FD_SB_ENABLED
))
8040 pf
->flags
|= I40E_FLAG_FD_SB_ENABLED
;
8042 /* turn off filters, mark for reset and clear SW filter list */
8043 if (pf
->flags
& I40E_FLAG_FD_SB_ENABLED
) {
8045 i40e_fdir_filter_exit(pf
);
8047 pf
->flags
&= ~I40E_FLAG_FD_SB_ENABLED
;
8048 pf
->auto_disable_flags
&= ~I40E_FLAG_FD_SB_ENABLED
;
8049 /* reset fd counters */
8050 pf
->fd_add_err
= pf
->fd_atr_cnt
= pf
->fd_tcp_rule
= 0;
8051 pf
->fdir_pf_active_filters
= 0;
8052 pf
->flags
|= I40E_FLAG_FD_ATR_ENABLED
;
8053 if (I40E_DEBUG_FD
& pf
->hw
.debug_mask
)
8054 dev_info(&pf
->pdev
->dev
, "ATR re-enabled.\n");
8055 /* if ATR was auto disabled it can be re-enabled. */
8056 if ((pf
->flags
& I40E_FLAG_FD_ATR_ENABLED
) &&
8057 (pf
->auto_disable_flags
& I40E_FLAG_FD_ATR_ENABLED
))
8058 pf
->auto_disable_flags
&= ~I40E_FLAG_FD_ATR_ENABLED
;
8064 * i40e_set_features - set the netdev feature flags
8065 * @netdev: ptr to the netdev being adjusted
8066 * @features: the feature set that the stack is suggesting
8068 static int i40e_set_features(struct net_device
*netdev
,
8069 netdev_features_t features
)
8071 struct i40e_netdev_priv
*np
= netdev_priv(netdev
);
8072 struct i40e_vsi
*vsi
= np
->vsi
;
8073 struct i40e_pf
*pf
= vsi
->back
;
8076 if (features
& NETIF_F_HW_VLAN_CTAG_RX
)
8077 i40e_vlan_stripping_enable(vsi
);
8079 i40e_vlan_stripping_disable(vsi
);
8081 need_reset
= i40e_set_ntuple(pf
, features
);
8084 i40e_do_reset(pf
, BIT_ULL(__I40E_PF_RESET_REQUESTED
));
8089 #ifdef CONFIG_I40E_VXLAN
8091 * i40e_get_vxlan_port_idx - Lookup a possibly offloaded for Rx UDP port
8092 * @pf: board private structure
8093 * @port: The UDP port to look up
8095 * Returns the index number or I40E_MAX_PF_UDP_OFFLOAD_PORTS if port not found
8097 static u8
i40e_get_vxlan_port_idx(struct i40e_pf
*pf
, __be16 port
)
8101 for (i
= 0; i
< I40E_MAX_PF_UDP_OFFLOAD_PORTS
; i
++) {
8102 if (pf
->vxlan_ports
[i
] == port
)
8110 * i40e_add_vxlan_port - Get notifications about VXLAN ports that come up
8111 * @netdev: This physical port's netdev
8112 * @sa_family: Socket Family that VXLAN is notifying us about
8113 * @port: New UDP port number that VXLAN started listening to
8115 static void i40e_add_vxlan_port(struct net_device
*netdev
,
8116 sa_family_t sa_family
, __be16 port
)
8118 struct i40e_netdev_priv
*np
= netdev_priv(netdev
);
8119 struct i40e_vsi
*vsi
= np
->vsi
;
8120 struct i40e_pf
*pf
= vsi
->back
;
8124 if (sa_family
== AF_INET6
)
8127 idx
= i40e_get_vxlan_port_idx(pf
, port
);
8129 /* Check if port already exists */
8130 if (idx
< I40E_MAX_PF_UDP_OFFLOAD_PORTS
) {
8131 netdev_info(netdev
, "vxlan port %d already offloaded\n",
8136 /* Now check if there is space to add the new port */
8137 next_idx
= i40e_get_vxlan_port_idx(pf
, 0);
8139 if (next_idx
== I40E_MAX_PF_UDP_OFFLOAD_PORTS
) {
8140 netdev_info(netdev
, "maximum number of vxlan UDP ports reached, not adding port %d\n",
8145 /* New port: add it and mark its index in the bitmap */
8146 pf
->vxlan_ports
[next_idx
] = port
;
8147 pf
->pending_vxlan_bitmap
|= BIT_ULL(next_idx
);
8148 pf
->flags
|= I40E_FLAG_VXLAN_FILTER_SYNC
;
8152 * i40e_del_vxlan_port - Get notifications about VXLAN ports that go away
8153 * @netdev: This physical port's netdev
8154 * @sa_family: Socket Family that VXLAN is notifying us about
8155 * @port: UDP port number that VXLAN stopped listening to
8157 static void i40e_del_vxlan_port(struct net_device
*netdev
,
8158 sa_family_t sa_family
, __be16 port
)
8160 struct i40e_netdev_priv
*np
= netdev_priv(netdev
);
8161 struct i40e_vsi
*vsi
= np
->vsi
;
8162 struct i40e_pf
*pf
= vsi
->back
;
8165 if (sa_family
== AF_INET6
)
8168 idx
= i40e_get_vxlan_port_idx(pf
, port
);
8170 /* Check if port already exists */
8171 if (idx
< I40E_MAX_PF_UDP_OFFLOAD_PORTS
) {
8172 /* if port exists, set it to 0 (mark for deletion)
8173 * and make it pending
8175 pf
->vxlan_ports
[idx
] = 0;
8176 pf
->pending_vxlan_bitmap
|= BIT_ULL(idx
);
8177 pf
->flags
|= I40E_FLAG_VXLAN_FILTER_SYNC
;
8179 netdev_warn(netdev
, "vxlan port %d was not found, not deleting\n",
8185 static int i40e_get_phys_port_id(struct net_device
*netdev
,
8186 struct netdev_phys_item_id
*ppid
)
8188 struct i40e_netdev_priv
*np
= netdev_priv(netdev
);
8189 struct i40e_pf
*pf
= np
->vsi
->back
;
8190 struct i40e_hw
*hw
= &pf
->hw
;
8192 if (!(pf
->flags
& I40E_FLAG_PORT_ID_VALID
))
8195 ppid
->id_len
= min_t(int, sizeof(hw
->mac
.port_addr
), sizeof(ppid
->id
));
8196 memcpy(ppid
->id
, hw
->mac
.port_addr
, ppid
->id_len
);
8202 * i40e_ndo_fdb_add - add an entry to the hardware database
8203 * @ndm: the input from the stack
8204 * @tb: pointer to array of nladdr (unused)
8205 * @dev: the net device pointer
8206 * @addr: the MAC address entry being added
8207 * @flags: instructions from stack about fdb operation
8209 static int i40e_ndo_fdb_add(struct ndmsg
*ndm
, struct nlattr
*tb
[],
8210 struct net_device
*dev
,
8211 const unsigned char *addr
, u16 vid
,
8214 struct i40e_netdev_priv
*np
= netdev_priv(dev
);
8215 struct i40e_pf
*pf
= np
->vsi
->back
;
8218 if (!(pf
->flags
& I40E_FLAG_SRIOV_ENABLED
))
8222 pr_info("%s: vlans aren't supported yet for dev_uc|mc_add()\n", dev
->name
);
8226 /* Hardware does not support aging addresses so if a
8227 * ndm_state is given only allow permanent addresses
8229 if (ndm
->ndm_state
&& !(ndm
->ndm_state
& NUD_PERMANENT
)) {
8230 netdev_info(dev
, "FDB only supports static addresses\n");
8234 if (is_unicast_ether_addr(addr
) || is_link_local_ether_addr(addr
))
8235 err
= dev_uc_add_excl(dev
, addr
);
8236 else if (is_multicast_ether_addr(addr
))
8237 err
= dev_mc_add_excl(dev
, addr
);
8241 /* Only return duplicate errors if NLM_F_EXCL is set */
8242 if (err
== -EEXIST
&& !(flags
& NLM_F_EXCL
))
8249 * i40e_ndo_bridge_setlink - Set the hardware bridge mode
8250 * @dev: the netdev being configured
8251 * @nlh: RTNL message
8253 * Inserts a new hardware bridge if not already created and
8254 * enables the bridging mode requested (VEB or VEPA). If the
8255 * hardware bridge has already been inserted and the request
8256 * is to change the mode then that requires a PF reset to
8257 * allow rebuild of the components with required hardware
8258 * bridge mode enabled.
8260 static int i40e_ndo_bridge_setlink(struct net_device
*dev
,
8261 struct nlmsghdr
*nlh
,
8264 struct i40e_netdev_priv
*np
= netdev_priv(dev
);
8265 struct i40e_vsi
*vsi
= np
->vsi
;
8266 struct i40e_pf
*pf
= vsi
->back
;
8267 struct i40e_veb
*veb
= NULL
;
8268 struct nlattr
*attr
, *br_spec
;
8271 /* Only for PF VSI for now */
8272 if (vsi
->seid
!= pf
->vsi
[pf
->lan_vsi
]->seid
)
8275 /* Find the HW bridge for PF VSI */
8276 for (i
= 0; i
< I40E_MAX_VEB
&& !veb
; i
++) {
8277 if (pf
->veb
[i
] && pf
->veb
[i
]->seid
== vsi
->uplink_seid
)
8281 br_spec
= nlmsg_find_attr(nlh
, sizeof(struct ifinfomsg
), IFLA_AF_SPEC
);
8283 nla_for_each_nested(attr
, br_spec
, rem
) {
8286 if (nla_type(attr
) != IFLA_BRIDGE_MODE
)
8289 mode
= nla_get_u16(attr
);
8290 if ((mode
!= BRIDGE_MODE_VEPA
) &&
8291 (mode
!= BRIDGE_MODE_VEB
))
8294 /* Insert a new HW bridge */
8296 veb
= i40e_veb_setup(pf
, 0, vsi
->uplink_seid
, vsi
->seid
,
8297 vsi
->tc_config
.enabled_tc
);
8299 veb
->bridge_mode
= mode
;
8300 i40e_config_bridge_mode(veb
);
8302 /* No Bridge HW offload available */
8306 } else if (mode
!= veb
->bridge_mode
) {
8307 /* Existing HW bridge but different mode needs reset */
8308 veb
->bridge_mode
= mode
;
8309 /* TODO: If no VFs or VMDq VSIs, disallow VEB mode */
8310 if (mode
== BRIDGE_MODE_VEB
)
8311 pf
->flags
|= I40E_FLAG_VEB_MODE_ENABLED
;
8313 pf
->flags
&= ~I40E_FLAG_VEB_MODE_ENABLED
;
8314 i40e_do_reset(pf
, BIT_ULL(__I40E_PF_RESET_REQUESTED
));
8323 * i40e_ndo_bridge_getlink - Get the hardware bridge mode
8326 * @seq: RTNL message seq #
8327 * @dev: the netdev being configured
8328 * @filter_mask: unused
8330 * Return the mode in which the hardware bridge is operating in
8333 static int i40e_ndo_bridge_getlink(struct sk_buff
*skb
, u32 pid
, u32 seq
,
8334 struct net_device
*dev
,
8335 u32 filter_mask
, int nlflags
)
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
;
9702 pf
->vsi
[pf
->lan_vsi
]->tc_config
.enabled_tc
= 0;
9703 pf
->vsi
[pf
->lan_vsi
]->seid
= pf
->main_vsi_seid
;
9704 i40e_vsi_config_tc(pf
->vsi
[pf
->lan_vsi
], enabled_tc
);
9706 i40e_vlan_stripping_disable(pf
->vsi
[pf
->lan_vsi
]);
9708 i40e_fdir_sb_setup(pf
);
9710 /* Setup static PF queue filter control settings */
9711 ret
= i40e_setup_pf_filter_control(pf
);
9713 dev_info(&pf
->pdev
->dev
, "setup_pf_filter_control failed: %d\n",
9715 /* Failure here should not stop continuing other steps */
9718 /* enable RSS in the HW, even for only one queue, as the stack can use
9721 if ((pf
->flags
& I40E_FLAG_RSS_ENABLED
))
9722 i40e_config_rss(pf
);
9724 /* fill in link information and enable LSE reporting */
9725 i40e_aq_get_link_info(&pf
->hw
, true, NULL
, NULL
);
9726 i40e_link_event(pf
);
9728 /* Initialize user-specific link properties */
9729 pf
->fc_autoneg_status
= ((pf
->hw
.phy
.link_info
.an_info
&
9730 I40E_AQ_AN_COMPLETED
) ? true : false);
9738 * i40e_determine_queue_usage - Work out queue distribution
9739 * @pf: board private structure
9741 static void i40e_determine_queue_usage(struct i40e_pf
*pf
)
9745 pf
->num_lan_qps
= 0;
9747 pf
->num_fcoe_qps
= 0;
9750 /* Find the max queues to be put into basic use. We'll always be
9751 * using TC0, whether or not DCB is running, and TC0 will get the
9754 queues_left
= pf
->hw
.func_caps
.num_tx_qp
;
9756 if ((queues_left
== 1) ||
9757 !(pf
->flags
& I40E_FLAG_MSIX_ENABLED
)) {
9758 /* one qp for PF, no queues for anything else */
9760 pf
->rss_size
= pf
->num_lan_qps
= 1;
9762 /* make sure all the fancies are disabled */
9763 pf
->flags
&= ~(I40E_FLAG_RSS_ENABLED
|
9765 I40E_FLAG_FCOE_ENABLED
|
9767 I40E_FLAG_FD_SB_ENABLED
|
9768 I40E_FLAG_FD_ATR_ENABLED
|
9769 I40E_FLAG_DCB_CAPABLE
|
9770 I40E_FLAG_SRIOV_ENABLED
|
9771 I40E_FLAG_VMDQ_ENABLED
);
9772 } else if (!(pf
->flags
& (I40E_FLAG_RSS_ENABLED
|
9773 I40E_FLAG_FD_SB_ENABLED
|
9774 I40E_FLAG_FD_ATR_ENABLED
|
9775 I40E_FLAG_DCB_CAPABLE
))) {
9777 pf
->rss_size
= pf
->num_lan_qps
= 1;
9778 queues_left
-= pf
->num_lan_qps
;
9780 pf
->flags
&= ~(I40E_FLAG_RSS_ENABLED
|
9782 I40E_FLAG_FCOE_ENABLED
|
9784 I40E_FLAG_FD_SB_ENABLED
|
9785 I40E_FLAG_FD_ATR_ENABLED
|
9786 I40E_FLAG_DCB_ENABLED
|
9787 I40E_FLAG_VMDQ_ENABLED
);
9789 /* Not enough queues for all TCs */
9790 if ((pf
->flags
& I40E_FLAG_DCB_CAPABLE
) &&
9791 (queues_left
< I40E_MAX_TRAFFIC_CLASS
)) {
9792 pf
->flags
&= ~I40E_FLAG_DCB_CAPABLE
;
9793 dev_info(&pf
->pdev
->dev
, "not enough queues for DCB. DCB is disabled.\n");
9795 pf
->num_lan_qps
= max_t(int, pf
->rss_size_max
,
9797 pf
->num_lan_qps
= min_t(int, pf
->num_lan_qps
,
9798 pf
->hw
.func_caps
.num_tx_qp
);
9800 queues_left
-= pf
->num_lan_qps
;
9804 if (pf
->flags
& I40E_FLAG_FCOE_ENABLED
) {
9805 if (I40E_DEFAULT_FCOE
<= queues_left
) {
9806 pf
->num_fcoe_qps
= I40E_DEFAULT_FCOE
;
9807 } else if (I40E_MINIMUM_FCOE
<= queues_left
) {
9808 pf
->num_fcoe_qps
= I40E_MINIMUM_FCOE
;
9810 pf
->num_fcoe_qps
= 0;
9811 pf
->flags
&= ~I40E_FLAG_FCOE_ENABLED
;
9812 dev_info(&pf
->pdev
->dev
, "not enough queues for FCoE. FCoE feature will be disabled\n");
9815 queues_left
-= pf
->num_fcoe_qps
;
9819 if (pf
->flags
& I40E_FLAG_FD_SB_ENABLED
) {
9820 if (queues_left
> 1) {
9821 queues_left
-= 1; /* save 1 queue for FD */
9823 pf
->flags
&= ~I40E_FLAG_FD_SB_ENABLED
;
9824 dev_info(&pf
->pdev
->dev
, "not enough queues for Flow Director. Flow Director feature is disabled\n");
9828 if ((pf
->flags
& I40E_FLAG_SRIOV_ENABLED
) &&
9829 pf
->num_vf_qps
&& pf
->num_req_vfs
&& queues_left
) {
9830 pf
->num_req_vfs
= min_t(int, pf
->num_req_vfs
,
9831 (queues_left
/ pf
->num_vf_qps
));
9832 queues_left
-= (pf
->num_req_vfs
* pf
->num_vf_qps
);
9835 if ((pf
->flags
& I40E_FLAG_VMDQ_ENABLED
) &&
9836 pf
->num_vmdq_vsis
&& pf
->num_vmdq_qps
&& queues_left
) {
9837 pf
->num_vmdq_vsis
= min_t(int, pf
->num_vmdq_vsis
,
9838 (queues_left
/ pf
->num_vmdq_qps
));
9839 queues_left
-= (pf
->num_vmdq_vsis
* pf
->num_vmdq_qps
);
9842 pf
->queues_left
= queues_left
;
9844 dev_info(&pf
->pdev
->dev
, "fcoe queues = %d\n", pf
->num_fcoe_qps
);
9849 * i40e_setup_pf_filter_control - Setup PF static filter control
9850 * @pf: PF to be setup
9852 * i40e_setup_pf_filter_control sets up a PF's initial filter control
9853 * settings. If PE/FCoE are enabled then it will also set the per PF
9854 * based filter sizes required for them. It also enables Flow director,
9855 * ethertype and macvlan type filter settings for the pf.
9857 * Returns 0 on success, negative on failure
9859 static int i40e_setup_pf_filter_control(struct i40e_pf
*pf
)
9861 struct i40e_filter_control_settings
*settings
= &pf
->filter_settings
;
9863 settings
->hash_lut_size
= I40E_HASH_LUT_SIZE_128
;
9865 /* Flow Director is enabled */
9866 if (pf
->flags
& (I40E_FLAG_FD_SB_ENABLED
| I40E_FLAG_FD_ATR_ENABLED
))
9867 settings
->enable_fdir
= true;
9869 /* Ethtype and MACVLAN filters enabled for PF */
9870 settings
->enable_ethtype
= true;
9871 settings
->enable_macvlan
= true;
9873 if (i40e_set_filter_control(&pf
->hw
, settings
))
9879 #define INFO_STRING_LEN 255
9880 static void i40e_print_features(struct i40e_pf
*pf
)
9882 struct i40e_hw
*hw
= &pf
->hw
;
9885 string
= kzalloc(INFO_STRING_LEN
, GFP_KERNEL
);
9887 dev_err(&pf
->pdev
->dev
, "Features string allocation failed\n");
9893 buf
+= sprintf(string
, "Features: PF-id[%d] ", hw
->pf_id
);
9894 #ifdef CONFIG_PCI_IOV
9895 buf
+= sprintf(buf
, "VFs: %d ", pf
->num_req_vfs
);
9897 buf
+= sprintf(buf
, "VSIs: %d QP: %d RX: %s ",
9898 pf
->hw
.func_caps
.num_vsis
,
9899 pf
->vsi
[pf
->lan_vsi
]->num_queue_pairs
,
9900 pf
->flags
& I40E_FLAG_RX_PS_ENABLED
? "PS" : "1BUF");
9902 if (pf
->flags
& I40E_FLAG_RSS_ENABLED
)
9903 buf
+= sprintf(buf
, "RSS ");
9904 if (pf
->flags
& I40E_FLAG_FD_ATR_ENABLED
)
9905 buf
+= sprintf(buf
, "FD_ATR ");
9906 if (pf
->flags
& I40E_FLAG_FD_SB_ENABLED
) {
9907 buf
+= sprintf(buf
, "FD_SB ");
9908 buf
+= sprintf(buf
, "NTUPLE ");
9910 if (pf
->flags
& I40E_FLAG_DCB_CAPABLE
)
9911 buf
+= sprintf(buf
, "DCB ");
9912 if (pf
->flags
& I40E_FLAG_PTP
)
9913 buf
+= sprintf(buf
, "PTP ");
9915 if (pf
->flags
& I40E_FLAG_FCOE_ENABLED
)
9916 buf
+= sprintf(buf
, "FCOE ");
9919 BUG_ON(buf
> (string
+ INFO_STRING_LEN
));
9920 dev_info(&pf
->pdev
->dev
, "%s\n", string
);
9925 * i40e_probe - Device initialization routine
9926 * @pdev: PCI device information struct
9927 * @ent: entry in i40e_pci_tbl
9929 * i40e_probe initializes a PF identified by a pci_dev structure.
9930 * The OS initialization, configuring of the PF private structure,
9931 * and a hardware reset occur.
9933 * Returns 0 on success, negative on failure
9935 static int i40e_probe(struct pci_dev
*pdev
, const struct pci_device_id
*ent
)
9937 struct i40e_aq_get_phy_abilities_resp abilities
;
9940 static u16 pfs_found
;
9947 err
= pci_enable_device_mem(pdev
);
9951 /* set up for high or low dma */
9952 err
= dma_set_mask_and_coherent(&pdev
->dev
, DMA_BIT_MASK(64));
9954 err
= dma_set_mask_and_coherent(&pdev
->dev
, DMA_BIT_MASK(32));
9957 "DMA configuration failed: 0x%x\n", err
);
9962 /* set up pci connections */
9963 err
= pci_request_selected_regions(pdev
, pci_select_bars(pdev
,
9964 IORESOURCE_MEM
), i40e_driver_name
);
9966 dev_info(&pdev
->dev
,
9967 "pci_request_selected_regions failed %d\n", err
);
9971 pci_enable_pcie_error_reporting(pdev
);
9972 pci_set_master(pdev
);
9974 /* Now that we have a PCI connection, we need to do the
9975 * low level device setup. This is primarily setting up
9976 * the Admin Queue structures and then querying for the
9977 * device's current profile information.
9979 pf
= kzalloc(sizeof(*pf
), GFP_KERNEL
);
9986 set_bit(__I40E_DOWN
, &pf
->state
);
9991 pf
->ioremap_len
= min_t(int, pci_resource_len(pdev
, 0),
9992 I40E_MAX_CSR_SPACE
);
9994 hw
->hw_addr
= ioremap(pci_resource_start(pdev
, 0), pf
->ioremap_len
);
9997 dev_info(&pdev
->dev
, "ioremap(0x%04x, 0x%04x) failed: 0x%x\n",
9998 (unsigned int)pci_resource_start(pdev
, 0),
9999 pf
->ioremap_len
, err
);
10002 hw
->vendor_id
= pdev
->vendor
;
10003 hw
->device_id
= pdev
->device
;
10004 pci_read_config_byte(pdev
, PCI_REVISION_ID
, &hw
->revision_id
);
10005 hw
->subsystem_vendor_id
= pdev
->subsystem_vendor
;
10006 hw
->subsystem_device_id
= pdev
->subsystem_device
;
10007 hw
->bus
.device
= PCI_SLOT(pdev
->devfn
);
10008 hw
->bus
.func
= PCI_FUNC(pdev
->devfn
);
10009 pf
->instance
= pfs_found
;
10012 pf
->msg_enable
= pf
->hw
.debug_mask
;
10013 pf
->msg_enable
= debug
;
10016 /* do a special CORER for clearing PXE mode once at init */
10017 if (hw
->revision_id
== 0 &&
10018 (rd32(hw
, I40E_GLLAN_RCTL_0
) & I40E_GLLAN_RCTL_0_PXE_MODE_MASK
)) {
10019 wr32(hw
, I40E_GLGEN_RTRIG
, I40E_GLGEN_RTRIG_CORER_MASK
);
10024 i40e_clear_pxe_mode(hw
);
10027 /* Reset here to make sure all is clean and to define PF 'n' */
10029 err
= i40e_pf_reset(hw
);
10031 dev_info(&pdev
->dev
, "Initial pf_reset failed: %d\n", err
);
10036 hw
->aq
.num_arq_entries
= I40E_AQ_LEN
;
10037 hw
->aq
.num_asq_entries
= I40E_AQ_LEN
;
10038 hw
->aq
.arq_buf_size
= I40E_MAX_AQ_BUF_SIZE
;
10039 hw
->aq
.asq_buf_size
= I40E_MAX_AQ_BUF_SIZE
;
10040 pf
->adminq_work_limit
= I40E_AQ_WORK_LIMIT
;
10042 snprintf(pf
->int_name
, sizeof(pf
->int_name
) - 1,
10044 dev_driver_string(&pf
->pdev
->dev
), dev_name(&pdev
->dev
));
10046 err
= i40e_init_shared_code(hw
);
10048 dev_warn(&pdev
->dev
, "unidentified MAC or BLANK NVM: %d\n",
10053 /* set up a default setting for link flow control */
10054 pf
->hw
.fc
.requested_mode
= I40E_FC_NONE
;
10056 err
= i40e_init_adminq(hw
);
10057 dev_info(&pdev
->dev
, "%s\n", i40e_fw_version_str(hw
));
10059 dev_info(&pdev
->dev
,
10060 "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");
10064 if (hw
->aq
.api_maj_ver
== I40E_FW_API_VERSION_MAJOR
&&
10065 hw
->aq
.api_min_ver
> I40E_FW_API_VERSION_MINOR
)
10066 dev_info(&pdev
->dev
,
10067 "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");
10068 else if (hw
->aq
.api_maj_ver
< I40E_FW_API_VERSION_MAJOR
||
10069 hw
->aq
.api_min_ver
< (I40E_FW_API_VERSION_MINOR
- 1))
10070 dev_info(&pdev
->dev
,
10071 "The driver for the device detected an older version of the NVM image than expected. Please update the NVM image.\n");
10073 i40e_verify_eeprom(pf
);
10075 /* Rev 0 hardware was never productized */
10076 if (hw
->revision_id
< 1)
10077 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");
10079 i40e_clear_pxe_mode(hw
);
10080 err
= i40e_get_capabilities(pf
);
10082 goto err_adminq_setup
;
10084 err
= i40e_sw_init(pf
);
10086 dev_info(&pdev
->dev
, "sw_init failed: %d\n", err
);
10090 err
= i40e_init_lan_hmc(hw
, hw
->func_caps
.num_tx_qp
,
10091 hw
->func_caps
.num_rx_qp
,
10092 pf
->fcoe_hmc_cntx_num
, pf
->fcoe_hmc_filt_num
);
10094 dev_info(&pdev
->dev
, "init_lan_hmc failed: %d\n", err
);
10095 goto err_init_lan_hmc
;
10098 err
= i40e_configure_lan_hmc(hw
, I40E_HMC_MODEL_DIRECT_ONLY
);
10100 dev_info(&pdev
->dev
, "configure_lan_hmc failed: %d\n", err
);
10102 goto err_configure_lan_hmc
;
10105 /* Disable LLDP for NICs that have firmware versions lower than v4.3.
10106 * Ignore error return codes because if it was already disabled via
10107 * hardware settings this will fail
10109 if (((pf
->hw
.aq
.fw_maj_ver
== 4) && (pf
->hw
.aq
.fw_min_ver
< 3)) ||
10110 (pf
->hw
.aq
.fw_maj_ver
< 4)) {
10111 dev_info(&pdev
->dev
, "Stopping firmware LLDP agent.\n");
10112 i40e_aq_stop_lldp(hw
, true, NULL
);
10115 i40e_get_mac_addr(hw
, hw
->mac
.addr
);
10116 if (!is_valid_ether_addr(hw
->mac
.addr
)) {
10117 dev_info(&pdev
->dev
, "invalid MAC address %pM\n", hw
->mac
.addr
);
10121 dev_info(&pdev
->dev
, "MAC address: %pM\n", hw
->mac
.addr
);
10122 ether_addr_copy(hw
->mac
.perm_addr
, hw
->mac
.addr
);
10123 i40e_get_port_mac_addr(hw
, hw
->mac
.port_addr
);
10124 if (is_valid_ether_addr(hw
->mac
.port_addr
))
10125 pf
->flags
|= I40E_FLAG_PORT_ID_VALID
;
10127 err
= i40e_get_san_mac_addr(hw
, hw
->mac
.san_addr
);
10129 dev_info(&pdev
->dev
,
10130 "(non-fatal) SAN MAC retrieval failed: %d\n", err
);
10131 if (!is_valid_ether_addr(hw
->mac
.san_addr
)) {
10132 dev_warn(&pdev
->dev
, "invalid SAN MAC address %pM, falling back to LAN MAC\n",
10134 ether_addr_copy(hw
->mac
.san_addr
, hw
->mac
.addr
);
10136 dev_info(&pf
->pdev
->dev
, "SAN MAC: %pM\n", hw
->mac
.san_addr
);
10137 #endif /* I40E_FCOE */
10139 pci_set_drvdata(pdev
, pf
);
10140 pci_save_state(pdev
);
10141 #ifdef CONFIG_I40E_DCB
10142 err
= i40e_init_pf_dcb(pf
);
10144 dev_info(&pdev
->dev
, "DCB init failed %d, disabled\n", err
);
10145 pf
->flags
&= ~I40E_FLAG_DCB_CAPABLE
;
10146 /* Continue without DCB enabled */
10148 #endif /* CONFIG_I40E_DCB */
10150 /* set up periodic task facility */
10151 setup_timer(&pf
->service_timer
, i40e_service_timer
, (unsigned long)pf
);
10152 pf
->service_timer_period
= HZ
;
10154 INIT_WORK(&pf
->service_task
, i40e_service_task
);
10155 clear_bit(__I40E_SERVICE_SCHED
, &pf
->state
);
10156 pf
->flags
|= I40E_FLAG_NEED_LINK_UPDATE
;
10158 /* NVM bit on means WoL disabled for the port */
10159 i40e_read_nvm_word(hw
, I40E_SR_NVM_WAKE_ON_LAN
, &wol_nvm_bits
);
10160 if ((1 << hw
->port
) & wol_nvm_bits
|| hw
->partition_id
!= 1)
10161 pf
->wol_en
= false;
10164 device_set_wakeup_enable(&pf
->pdev
->dev
, pf
->wol_en
);
10166 /* set up the main switch operations */
10167 i40e_determine_queue_usage(pf
);
10168 err
= i40e_init_interrupt_scheme(pf
);
10170 goto err_switch_setup
;
10172 /* The number of VSIs reported by the FW is the minimum guaranteed
10173 * to us; HW supports far more and we share the remaining pool with
10174 * the other PFs. We allocate space for more than the guarantee with
10175 * the understanding that we might not get them all later.
10177 if (pf
->hw
.func_caps
.num_vsis
< I40E_MIN_VSI_ALLOC
)
10178 pf
->num_alloc_vsi
= I40E_MIN_VSI_ALLOC
;
10180 pf
->num_alloc_vsi
= pf
->hw
.func_caps
.num_vsis
;
10182 /* Set up the *vsi struct and our local tracking of the MAIN PF vsi. */
10183 len
= sizeof(struct i40e_vsi
*) * pf
->num_alloc_vsi
;
10184 pf
->vsi
= kzalloc(len
, GFP_KERNEL
);
10187 goto err_switch_setup
;
10190 #ifdef CONFIG_PCI_IOV
10191 /* prep for VF support */
10192 if ((pf
->flags
& I40E_FLAG_SRIOV_ENABLED
) &&
10193 (pf
->flags
& I40E_FLAG_MSIX_ENABLED
) &&
10194 !test_bit(__I40E_BAD_EEPROM
, &pf
->state
)) {
10195 if (pci_num_vf(pdev
))
10196 pf
->flags
|= I40E_FLAG_VEB_MODE_ENABLED
;
10199 err
= i40e_setup_pf_switch(pf
, false);
10201 dev_info(&pdev
->dev
, "setup_pf_switch failed: %d\n", err
);
10204 /* if FDIR VSI was set up, start it now */
10205 for (i
= 0; i
< pf
->num_alloc_vsi
; i
++) {
10206 if (pf
->vsi
[i
] && pf
->vsi
[i
]->type
== I40E_VSI_FDIR
) {
10207 i40e_vsi_open(pf
->vsi
[i
]);
10212 /* driver is only interested in link up/down and module qualification
10213 * reports from firmware
10215 err
= i40e_aq_set_phy_int_mask(&pf
->hw
,
10216 I40E_AQ_EVENT_LINK_UPDOWN
|
10217 I40E_AQ_EVENT_MODULE_QUAL_FAIL
, NULL
);
10219 dev_info(&pf
->pdev
->dev
, "set phy mask fail, err %s aq_err %s\n",
10220 i40e_stat_str(&pf
->hw
, err
),
10221 i40e_aq_str(&pf
->hw
, pf
->hw
.aq
.asq_last_status
));
10223 if (((pf
->hw
.aq
.fw_maj_ver
== 4) && (pf
->hw
.aq
.fw_min_ver
< 33)) ||
10224 (pf
->hw
.aq
.fw_maj_ver
< 4)) {
10226 err
= i40e_aq_set_link_restart_an(&pf
->hw
, true, NULL
);
10228 dev_info(&pf
->pdev
->dev
, "link restart failed, err %s aq_err %s\n",
10229 i40e_stat_str(&pf
->hw
, err
),
10230 i40e_aq_str(&pf
->hw
,
10231 pf
->hw
.aq
.asq_last_status
));
10233 /* The main driver is (mostly) up and happy. We need to set this state
10234 * before setting up the misc vector or we get a race and the vector
10235 * ends up disabled forever.
10237 clear_bit(__I40E_DOWN
, &pf
->state
);
10239 /* In case of MSIX we are going to setup the misc vector right here
10240 * to handle admin queue events etc. In case of legacy and MSI
10241 * the misc functionality and queue processing is combined in
10242 * the same vector and that gets setup at open.
10244 if (pf
->flags
& I40E_FLAG_MSIX_ENABLED
) {
10245 err
= i40e_setup_misc_vector(pf
);
10247 dev_info(&pdev
->dev
,
10248 "setup of misc vector failed: %d\n", err
);
10253 #ifdef CONFIG_PCI_IOV
10254 /* prep for VF support */
10255 if ((pf
->flags
& I40E_FLAG_SRIOV_ENABLED
) &&
10256 (pf
->flags
& I40E_FLAG_MSIX_ENABLED
) &&
10257 !test_bit(__I40E_BAD_EEPROM
, &pf
->state
)) {
10260 /* disable link interrupts for VFs */
10261 val
= rd32(hw
, I40E_PFGEN_PORTMDIO_NUM
);
10262 val
&= ~I40E_PFGEN_PORTMDIO_NUM_VFLINK_STAT_ENA_MASK
;
10263 wr32(hw
, I40E_PFGEN_PORTMDIO_NUM
, val
);
10266 if (pci_num_vf(pdev
)) {
10267 dev_info(&pdev
->dev
,
10268 "Active VFs found, allocating resources.\n");
10269 err
= i40e_alloc_vfs(pf
, pci_num_vf(pdev
));
10271 dev_info(&pdev
->dev
,
10272 "Error %d allocating resources for existing VFs\n",
10276 #endif /* CONFIG_PCI_IOV */
10280 i40e_dbg_pf_init(pf
);
10282 /* tell the firmware that we're starting */
10283 i40e_send_version(pf
);
10285 /* since everything's happy, start the service_task timer */
10286 mod_timer(&pf
->service_timer
,
10287 round_jiffies(jiffies
+ pf
->service_timer_period
));
10290 /* create FCoE interface */
10291 i40e_fcoe_vsi_setup(pf
);
10294 /* Get the negotiated link width and speed from PCI config space */
10295 pcie_capability_read_word(pf
->pdev
, PCI_EXP_LNKSTA
, &link_status
);
10297 i40e_set_pci_config_data(hw
, link_status
);
10299 dev_info(&pdev
->dev
, "PCI-Express: %s %s\n",
10300 (hw
->bus
.speed
== i40e_bus_speed_8000
? "Speed 8.0GT/s" :
10301 hw
->bus
.speed
== i40e_bus_speed_5000
? "Speed 5.0GT/s" :
10302 hw
->bus
.speed
== i40e_bus_speed_2500
? "Speed 2.5GT/s" :
10304 (hw
->bus
.width
== i40e_bus_width_pcie_x8
? "Width x8" :
10305 hw
->bus
.width
== i40e_bus_width_pcie_x4
? "Width x4" :
10306 hw
->bus
.width
== i40e_bus_width_pcie_x2
? "Width x2" :
10307 hw
->bus
.width
== i40e_bus_width_pcie_x1
? "Width x1" :
10310 if (hw
->bus
.width
< i40e_bus_width_pcie_x8
||
10311 hw
->bus
.speed
< i40e_bus_speed_8000
) {
10312 dev_warn(&pdev
->dev
, "PCI-Express bandwidth available for this device may be insufficient for optimal performance.\n");
10313 dev_warn(&pdev
->dev
, "Please move the device to a different PCI-e link with more lanes and/or higher transfer rate.\n");
10316 /* get the requested speeds from the fw */
10317 err
= i40e_aq_get_phy_capabilities(hw
, false, false, &abilities
, NULL
);
10319 dev_info(&pf
->pdev
->dev
,
10320 "get phy capabilities failed, err %s aq_err %s, advertised speed settings may not be correct\n",
10321 i40e_stat_str(&pf
->hw
, err
),
10322 i40e_aq_str(&pf
->hw
, pf
->hw
.aq
.asq_last_status
));
10323 pf
->hw
.phy
.link_info
.requested_speeds
= abilities
.link_speed
;
10325 /* print a string summarizing features */
10326 i40e_print_features(pf
);
10330 /* Unwind what we've done if something failed in the setup */
10332 set_bit(__I40E_DOWN
, &pf
->state
);
10333 i40e_clear_interrupt_scheme(pf
);
10336 i40e_reset_interrupt_capability(pf
);
10337 del_timer_sync(&pf
->service_timer
);
10339 err_configure_lan_hmc
:
10340 (void)i40e_shutdown_lan_hmc(hw
);
10342 kfree(pf
->qp_pile
);
10345 (void)i40e_shutdown_adminq(hw
);
10347 iounmap(hw
->hw_addr
);
10351 pci_disable_pcie_error_reporting(pdev
);
10352 pci_release_selected_regions(pdev
,
10353 pci_select_bars(pdev
, IORESOURCE_MEM
));
10356 pci_disable_device(pdev
);
10361 * i40e_remove - Device removal routine
10362 * @pdev: PCI device information struct
10364 * i40e_remove is called by the PCI subsystem to alert the driver
10365 * that is should release a PCI device. This could be caused by a
10366 * Hot-Plug event, or because the driver is going to be removed from
10369 static void i40e_remove(struct pci_dev
*pdev
)
10371 struct i40e_pf
*pf
= pci_get_drvdata(pdev
);
10372 i40e_status ret_code
;
10375 i40e_dbg_pf_exit(pf
);
10379 /* no more scheduling of any task */
10380 set_bit(__I40E_DOWN
, &pf
->state
);
10381 del_timer_sync(&pf
->service_timer
);
10382 cancel_work_sync(&pf
->service_task
);
10383 i40e_fdir_teardown(pf
);
10385 if (pf
->flags
& I40E_FLAG_SRIOV_ENABLED
) {
10387 pf
->flags
&= ~I40E_FLAG_SRIOV_ENABLED
;
10390 i40e_fdir_teardown(pf
);
10392 /* If there is a switch structure or any orphans, remove them.
10393 * This will leave only the PF's VSI remaining.
10395 for (i
= 0; i
< I40E_MAX_VEB
; i
++) {
10399 if (pf
->veb
[i
]->uplink_seid
== pf
->mac_seid
||
10400 pf
->veb
[i
]->uplink_seid
== 0)
10401 i40e_switch_branch_release(pf
->veb
[i
]);
10404 /* Now we can shutdown the PF's VSI, just before we kill
10407 if (pf
->vsi
[pf
->lan_vsi
])
10408 i40e_vsi_release(pf
->vsi
[pf
->lan_vsi
]);
10410 /* shutdown and destroy the HMC */
10411 if (pf
->hw
.hmc
.hmc_obj
) {
10412 ret_code
= i40e_shutdown_lan_hmc(&pf
->hw
);
10414 dev_warn(&pdev
->dev
,
10415 "Failed to destroy the HMC resources: %d\n",
10419 /* shutdown the adminq */
10420 ret_code
= i40e_shutdown_adminq(&pf
->hw
);
10422 dev_warn(&pdev
->dev
,
10423 "Failed to destroy the Admin Queue resources: %d\n",
10426 /* Clear all dynamic memory lists of rings, q_vectors, and VSIs */
10427 i40e_clear_interrupt_scheme(pf
);
10428 for (i
= 0; i
< pf
->num_alloc_vsi
; i
++) {
10430 i40e_vsi_clear_rings(pf
->vsi
[i
]);
10431 i40e_vsi_clear(pf
->vsi
[i
]);
10436 for (i
= 0; i
< I40E_MAX_VEB
; i
++) {
10441 kfree(pf
->qp_pile
);
10444 iounmap(pf
->hw
.hw_addr
);
10446 pci_release_selected_regions(pdev
,
10447 pci_select_bars(pdev
, IORESOURCE_MEM
));
10449 pci_disable_pcie_error_reporting(pdev
);
10450 pci_disable_device(pdev
);
10454 * i40e_pci_error_detected - warning that something funky happened in PCI land
10455 * @pdev: PCI device information struct
10457 * Called to warn that something happened and the error handling steps
10458 * are in progress. Allows the driver to quiesce things, be ready for
10461 static pci_ers_result_t
i40e_pci_error_detected(struct pci_dev
*pdev
,
10462 enum pci_channel_state error
)
10464 struct i40e_pf
*pf
= pci_get_drvdata(pdev
);
10466 dev_info(&pdev
->dev
, "%s: error %d\n", __func__
, error
);
10468 /* shutdown all operations */
10469 if (!test_bit(__I40E_SUSPENDED
, &pf
->state
)) {
10471 i40e_prep_for_reset(pf
);
10475 /* Request a slot reset */
10476 return PCI_ERS_RESULT_NEED_RESET
;
10480 * i40e_pci_error_slot_reset - a PCI slot reset just happened
10481 * @pdev: PCI device information struct
10483 * Called to find if the driver can work with the device now that
10484 * the pci slot has been reset. If a basic connection seems good
10485 * (registers are readable and have sane content) then return a
10486 * happy little PCI_ERS_RESULT_xxx.
10488 static pci_ers_result_t
i40e_pci_error_slot_reset(struct pci_dev
*pdev
)
10490 struct i40e_pf
*pf
= pci_get_drvdata(pdev
);
10491 pci_ers_result_t result
;
10495 dev_dbg(&pdev
->dev
, "%s\n", __func__
);
10496 if (pci_enable_device_mem(pdev
)) {
10497 dev_info(&pdev
->dev
,
10498 "Cannot re-enable PCI device after reset.\n");
10499 result
= PCI_ERS_RESULT_DISCONNECT
;
10501 pci_set_master(pdev
);
10502 pci_restore_state(pdev
);
10503 pci_save_state(pdev
);
10504 pci_wake_from_d3(pdev
, false);
10506 reg
= rd32(&pf
->hw
, I40E_GLGEN_RTRIG
);
10508 result
= PCI_ERS_RESULT_RECOVERED
;
10510 result
= PCI_ERS_RESULT_DISCONNECT
;
10513 err
= pci_cleanup_aer_uncorrect_error_status(pdev
);
10515 dev_info(&pdev
->dev
,
10516 "pci_cleanup_aer_uncorrect_error_status failed 0x%0x\n",
10518 /* non-fatal, continue */
10525 * i40e_pci_error_resume - restart operations after PCI error recovery
10526 * @pdev: PCI device information struct
10528 * Called to allow the driver to bring things back up after PCI error
10529 * and/or reset recovery has finished.
10531 static void i40e_pci_error_resume(struct pci_dev
*pdev
)
10533 struct i40e_pf
*pf
= pci_get_drvdata(pdev
);
10535 dev_dbg(&pdev
->dev
, "%s\n", __func__
);
10536 if (test_bit(__I40E_SUSPENDED
, &pf
->state
))
10540 i40e_handle_reset_warning(pf
);
10545 * i40e_shutdown - PCI callback for shutting down
10546 * @pdev: PCI device information struct
10548 static void i40e_shutdown(struct pci_dev
*pdev
)
10550 struct i40e_pf
*pf
= pci_get_drvdata(pdev
);
10551 struct i40e_hw
*hw
= &pf
->hw
;
10553 set_bit(__I40E_SUSPENDED
, &pf
->state
);
10554 set_bit(__I40E_DOWN
, &pf
->state
);
10556 i40e_prep_for_reset(pf
);
10559 wr32(hw
, I40E_PFPM_APM
, (pf
->wol_en
? I40E_PFPM_APM_APME_MASK
: 0));
10560 wr32(hw
, I40E_PFPM_WUFC
, (pf
->wol_en
? I40E_PFPM_WUFC_MAG_MASK
: 0));
10562 del_timer_sync(&pf
->service_timer
);
10563 cancel_work_sync(&pf
->service_task
);
10564 i40e_fdir_teardown(pf
);
10567 i40e_prep_for_reset(pf
);
10570 wr32(hw
, I40E_PFPM_APM
,
10571 (pf
->wol_en
? I40E_PFPM_APM_APME_MASK
: 0));
10572 wr32(hw
, I40E_PFPM_WUFC
,
10573 (pf
->wol_en
? I40E_PFPM_WUFC_MAG_MASK
: 0));
10575 i40e_clear_interrupt_scheme(pf
);
10577 if (system_state
== SYSTEM_POWER_OFF
) {
10578 pci_wake_from_d3(pdev
, pf
->wol_en
);
10579 pci_set_power_state(pdev
, PCI_D3hot
);
10585 * i40e_suspend - PCI callback for moving to D3
10586 * @pdev: PCI device information struct
10588 static int i40e_suspend(struct pci_dev
*pdev
, pm_message_t state
)
10590 struct i40e_pf
*pf
= pci_get_drvdata(pdev
);
10591 struct i40e_hw
*hw
= &pf
->hw
;
10593 set_bit(__I40E_SUSPENDED
, &pf
->state
);
10594 set_bit(__I40E_DOWN
, &pf
->state
);
10597 i40e_prep_for_reset(pf
);
10600 wr32(hw
, I40E_PFPM_APM
, (pf
->wol_en
? I40E_PFPM_APM_APME_MASK
: 0));
10601 wr32(hw
, I40E_PFPM_WUFC
, (pf
->wol_en
? I40E_PFPM_WUFC_MAG_MASK
: 0));
10603 pci_wake_from_d3(pdev
, pf
->wol_en
);
10604 pci_set_power_state(pdev
, PCI_D3hot
);
10610 * i40e_resume - PCI callback for waking up from D3
10611 * @pdev: PCI device information struct
10613 static int i40e_resume(struct pci_dev
*pdev
)
10615 struct i40e_pf
*pf
= pci_get_drvdata(pdev
);
10618 pci_set_power_state(pdev
, PCI_D0
);
10619 pci_restore_state(pdev
);
10620 /* pci_restore_state() clears dev->state_saves, so
10621 * call pci_save_state() again to restore it.
10623 pci_save_state(pdev
);
10625 err
= pci_enable_device_mem(pdev
);
10627 dev_err(&pdev
->dev
, "Cannot enable PCI device from suspend\n");
10630 pci_set_master(pdev
);
10632 /* no wakeup events while running */
10633 pci_wake_from_d3(pdev
, false);
10635 /* handling the reset will rebuild the device state */
10636 if (test_and_clear_bit(__I40E_SUSPENDED
, &pf
->state
)) {
10637 clear_bit(__I40E_DOWN
, &pf
->state
);
10639 i40e_reset_and_rebuild(pf
, false);
10647 static const struct pci_error_handlers i40e_err_handler
= {
10648 .error_detected
= i40e_pci_error_detected
,
10649 .slot_reset
= i40e_pci_error_slot_reset
,
10650 .resume
= i40e_pci_error_resume
,
10653 static struct pci_driver i40e_driver
= {
10654 .name
= i40e_driver_name
,
10655 .id_table
= i40e_pci_tbl
,
10656 .probe
= i40e_probe
,
10657 .remove
= i40e_remove
,
10659 .suspend
= i40e_suspend
,
10660 .resume
= i40e_resume
,
10662 .shutdown
= i40e_shutdown
,
10663 .err_handler
= &i40e_err_handler
,
10664 .sriov_configure
= i40e_pci_sriov_configure
,
10668 * i40e_init_module - Driver registration routine
10670 * i40e_init_module is the first routine called when the driver is
10671 * loaded. All it does is register with the PCI subsystem.
10673 static int __init
i40e_init_module(void)
10675 pr_info("%s: %s - version %s\n", i40e_driver_name
,
10676 i40e_driver_string
, i40e_driver_version_str
);
10677 pr_info("%s: %s\n", i40e_driver_name
, i40e_copyright
);
10680 return pci_register_driver(&i40e_driver
);
10682 module_init(i40e_init_module
);
10685 * i40e_exit_module - Driver exit cleanup routine
10687 * i40e_exit_module is called just before the driver is removed
10690 static void __exit
i40e_exit_module(void)
10692 pci_unregister_driver(&i40e_driver
);
10695 module_exit(i40e_exit_module
);