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
;
886 if (test_bit(__I40E_DOWN
, &vsi
->state
) ||
887 test_bit(__I40E_CONFIG_BUSY
, &pf
->state
))
890 ns
= i40e_get_vsi_stats_struct(vsi
);
891 ons
= &vsi
->net_stats_offsets
;
892 es
= &vsi
->eth_stats
;
893 oes
= &vsi
->eth_stats_offsets
;
895 /* Gather up the netdev and vsi stats that the driver collects
896 * on the fly during packet processing
900 tx_restart
= tx_busy
= 0;
904 for (q
= 0; q
< vsi
->num_queue_pairs
; q
++) {
906 p
= ACCESS_ONCE(vsi
->tx_rings
[q
]);
909 start
= u64_stats_fetch_begin_irq(&p
->syncp
);
910 packets
= p
->stats
.packets
;
911 bytes
= p
->stats
.bytes
;
912 } while (u64_stats_fetch_retry_irq(&p
->syncp
, start
));
915 tx_restart
+= p
->tx_stats
.restart_queue
;
916 tx_busy
+= p
->tx_stats
.tx_busy
;
918 /* Rx queue is part of the same block as Tx queue */
921 start
= u64_stats_fetch_begin_irq(&p
->syncp
);
922 packets
= p
->stats
.packets
;
923 bytes
= p
->stats
.bytes
;
924 } while (u64_stats_fetch_retry_irq(&p
->syncp
, start
));
927 rx_buf
+= p
->rx_stats
.alloc_buff_failed
;
928 rx_page
+= p
->rx_stats
.alloc_page_failed
;
931 vsi
->tx_restart
= tx_restart
;
932 vsi
->tx_busy
= tx_busy
;
933 vsi
->rx_page_failed
= rx_page
;
934 vsi
->rx_buf_failed
= rx_buf
;
936 ns
->rx_packets
= rx_p
;
938 ns
->tx_packets
= tx_p
;
941 /* update netdev stats from eth stats */
942 i40e_update_eth_stats(vsi
);
943 ons
->tx_errors
= oes
->tx_errors
;
944 ns
->tx_errors
= es
->tx_errors
;
945 ons
->multicast
= oes
->rx_multicast
;
946 ns
->multicast
= es
->rx_multicast
;
947 ons
->rx_dropped
= oes
->rx_discards
;
948 ns
->rx_dropped
= es
->rx_discards
;
949 ons
->tx_dropped
= oes
->tx_discards
;
950 ns
->tx_dropped
= es
->tx_discards
;
952 /* pull in a couple PF stats if this is the main vsi */
953 if (vsi
== pf
->vsi
[pf
->lan_vsi
]) {
954 ns
->rx_crc_errors
= pf
->stats
.crc_errors
;
955 ns
->rx_errors
= pf
->stats
.crc_errors
+ pf
->stats
.illegal_bytes
;
956 ns
->rx_length_errors
= pf
->stats
.rx_length_errors
;
961 * i40e_update_pf_stats - Update the PF statistics counters.
962 * @pf: the PF to be updated
964 static void i40e_update_pf_stats(struct i40e_pf
*pf
)
966 struct i40e_hw_port_stats
*osd
= &pf
->stats_offsets
;
967 struct i40e_hw_port_stats
*nsd
= &pf
->stats
;
968 struct i40e_hw
*hw
= &pf
->hw
;
972 i40e_stat_update48(hw
, I40E_GLPRT_GORCH(hw
->port
),
973 I40E_GLPRT_GORCL(hw
->port
),
974 pf
->stat_offsets_loaded
,
975 &osd
->eth
.rx_bytes
, &nsd
->eth
.rx_bytes
);
976 i40e_stat_update48(hw
, I40E_GLPRT_GOTCH(hw
->port
),
977 I40E_GLPRT_GOTCL(hw
->port
),
978 pf
->stat_offsets_loaded
,
979 &osd
->eth
.tx_bytes
, &nsd
->eth
.tx_bytes
);
980 i40e_stat_update32(hw
, I40E_GLPRT_RDPC(hw
->port
),
981 pf
->stat_offsets_loaded
,
982 &osd
->eth
.rx_discards
,
983 &nsd
->eth
.rx_discards
);
984 i40e_stat_update48(hw
, I40E_GLPRT_UPRCH(hw
->port
),
985 I40E_GLPRT_UPRCL(hw
->port
),
986 pf
->stat_offsets_loaded
,
987 &osd
->eth
.rx_unicast
,
988 &nsd
->eth
.rx_unicast
);
989 i40e_stat_update48(hw
, I40E_GLPRT_MPRCH(hw
->port
),
990 I40E_GLPRT_MPRCL(hw
->port
),
991 pf
->stat_offsets_loaded
,
992 &osd
->eth
.rx_multicast
,
993 &nsd
->eth
.rx_multicast
);
994 i40e_stat_update48(hw
, I40E_GLPRT_BPRCH(hw
->port
),
995 I40E_GLPRT_BPRCL(hw
->port
),
996 pf
->stat_offsets_loaded
,
997 &osd
->eth
.rx_broadcast
,
998 &nsd
->eth
.rx_broadcast
);
999 i40e_stat_update48(hw
, I40E_GLPRT_UPTCH(hw
->port
),
1000 I40E_GLPRT_UPTCL(hw
->port
),
1001 pf
->stat_offsets_loaded
,
1002 &osd
->eth
.tx_unicast
,
1003 &nsd
->eth
.tx_unicast
);
1004 i40e_stat_update48(hw
, I40E_GLPRT_MPTCH(hw
->port
),
1005 I40E_GLPRT_MPTCL(hw
->port
),
1006 pf
->stat_offsets_loaded
,
1007 &osd
->eth
.tx_multicast
,
1008 &nsd
->eth
.tx_multicast
);
1009 i40e_stat_update48(hw
, I40E_GLPRT_BPTCH(hw
->port
),
1010 I40E_GLPRT_BPTCL(hw
->port
),
1011 pf
->stat_offsets_loaded
,
1012 &osd
->eth
.tx_broadcast
,
1013 &nsd
->eth
.tx_broadcast
);
1015 i40e_stat_update32(hw
, I40E_GLPRT_TDOLD(hw
->port
),
1016 pf
->stat_offsets_loaded
,
1017 &osd
->tx_dropped_link_down
,
1018 &nsd
->tx_dropped_link_down
);
1020 i40e_stat_update32(hw
, I40E_GLPRT_CRCERRS(hw
->port
),
1021 pf
->stat_offsets_loaded
,
1022 &osd
->crc_errors
, &nsd
->crc_errors
);
1024 i40e_stat_update32(hw
, I40E_GLPRT_ILLERRC(hw
->port
),
1025 pf
->stat_offsets_loaded
,
1026 &osd
->illegal_bytes
, &nsd
->illegal_bytes
);
1028 i40e_stat_update32(hw
, I40E_GLPRT_MLFC(hw
->port
),
1029 pf
->stat_offsets_loaded
,
1030 &osd
->mac_local_faults
,
1031 &nsd
->mac_local_faults
);
1032 i40e_stat_update32(hw
, I40E_GLPRT_MRFC(hw
->port
),
1033 pf
->stat_offsets_loaded
,
1034 &osd
->mac_remote_faults
,
1035 &nsd
->mac_remote_faults
);
1037 i40e_stat_update32(hw
, I40E_GLPRT_RLEC(hw
->port
),
1038 pf
->stat_offsets_loaded
,
1039 &osd
->rx_length_errors
,
1040 &nsd
->rx_length_errors
);
1042 i40e_stat_update32(hw
, I40E_GLPRT_LXONRXC(hw
->port
),
1043 pf
->stat_offsets_loaded
,
1044 &osd
->link_xon_rx
, &nsd
->link_xon_rx
);
1045 i40e_stat_update32(hw
, I40E_GLPRT_LXONTXC(hw
->port
),
1046 pf
->stat_offsets_loaded
,
1047 &osd
->link_xon_tx
, &nsd
->link_xon_tx
);
1048 i40e_update_prio_xoff_rx(pf
); /* handles I40E_GLPRT_LXOFFRXC */
1049 i40e_stat_update32(hw
, I40E_GLPRT_LXOFFTXC(hw
->port
),
1050 pf
->stat_offsets_loaded
,
1051 &osd
->link_xoff_tx
, &nsd
->link_xoff_tx
);
1053 for (i
= 0; i
< 8; i
++) {
1054 i40e_stat_update32(hw
, I40E_GLPRT_PXONRXC(hw
->port
, i
),
1055 pf
->stat_offsets_loaded
,
1056 &osd
->priority_xon_rx
[i
],
1057 &nsd
->priority_xon_rx
[i
]);
1058 i40e_stat_update32(hw
, I40E_GLPRT_PXONTXC(hw
->port
, i
),
1059 pf
->stat_offsets_loaded
,
1060 &osd
->priority_xon_tx
[i
],
1061 &nsd
->priority_xon_tx
[i
]);
1062 i40e_stat_update32(hw
, I40E_GLPRT_PXOFFTXC(hw
->port
, i
),
1063 pf
->stat_offsets_loaded
,
1064 &osd
->priority_xoff_tx
[i
],
1065 &nsd
->priority_xoff_tx
[i
]);
1066 i40e_stat_update32(hw
,
1067 I40E_GLPRT_RXON2OFFCNT(hw
->port
, i
),
1068 pf
->stat_offsets_loaded
,
1069 &osd
->priority_xon_2_xoff
[i
],
1070 &nsd
->priority_xon_2_xoff
[i
]);
1073 i40e_stat_update48(hw
, I40E_GLPRT_PRC64H(hw
->port
),
1074 I40E_GLPRT_PRC64L(hw
->port
),
1075 pf
->stat_offsets_loaded
,
1076 &osd
->rx_size_64
, &nsd
->rx_size_64
);
1077 i40e_stat_update48(hw
, I40E_GLPRT_PRC127H(hw
->port
),
1078 I40E_GLPRT_PRC127L(hw
->port
),
1079 pf
->stat_offsets_loaded
,
1080 &osd
->rx_size_127
, &nsd
->rx_size_127
);
1081 i40e_stat_update48(hw
, I40E_GLPRT_PRC255H(hw
->port
),
1082 I40E_GLPRT_PRC255L(hw
->port
),
1083 pf
->stat_offsets_loaded
,
1084 &osd
->rx_size_255
, &nsd
->rx_size_255
);
1085 i40e_stat_update48(hw
, I40E_GLPRT_PRC511H(hw
->port
),
1086 I40E_GLPRT_PRC511L(hw
->port
),
1087 pf
->stat_offsets_loaded
,
1088 &osd
->rx_size_511
, &nsd
->rx_size_511
);
1089 i40e_stat_update48(hw
, I40E_GLPRT_PRC1023H(hw
->port
),
1090 I40E_GLPRT_PRC1023L(hw
->port
),
1091 pf
->stat_offsets_loaded
,
1092 &osd
->rx_size_1023
, &nsd
->rx_size_1023
);
1093 i40e_stat_update48(hw
, I40E_GLPRT_PRC1522H(hw
->port
),
1094 I40E_GLPRT_PRC1522L(hw
->port
),
1095 pf
->stat_offsets_loaded
,
1096 &osd
->rx_size_1522
, &nsd
->rx_size_1522
);
1097 i40e_stat_update48(hw
, I40E_GLPRT_PRC9522H(hw
->port
),
1098 I40E_GLPRT_PRC9522L(hw
->port
),
1099 pf
->stat_offsets_loaded
,
1100 &osd
->rx_size_big
, &nsd
->rx_size_big
);
1102 i40e_stat_update48(hw
, I40E_GLPRT_PTC64H(hw
->port
),
1103 I40E_GLPRT_PTC64L(hw
->port
),
1104 pf
->stat_offsets_loaded
,
1105 &osd
->tx_size_64
, &nsd
->tx_size_64
);
1106 i40e_stat_update48(hw
, I40E_GLPRT_PTC127H(hw
->port
),
1107 I40E_GLPRT_PTC127L(hw
->port
),
1108 pf
->stat_offsets_loaded
,
1109 &osd
->tx_size_127
, &nsd
->tx_size_127
);
1110 i40e_stat_update48(hw
, I40E_GLPRT_PTC255H(hw
->port
),
1111 I40E_GLPRT_PTC255L(hw
->port
),
1112 pf
->stat_offsets_loaded
,
1113 &osd
->tx_size_255
, &nsd
->tx_size_255
);
1114 i40e_stat_update48(hw
, I40E_GLPRT_PTC511H(hw
->port
),
1115 I40E_GLPRT_PTC511L(hw
->port
),
1116 pf
->stat_offsets_loaded
,
1117 &osd
->tx_size_511
, &nsd
->tx_size_511
);
1118 i40e_stat_update48(hw
, I40E_GLPRT_PTC1023H(hw
->port
),
1119 I40E_GLPRT_PTC1023L(hw
->port
),
1120 pf
->stat_offsets_loaded
,
1121 &osd
->tx_size_1023
, &nsd
->tx_size_1023
);
1122 i40e_stat_update48(hw
, I40E_GLPRT_PTC1522H(hw
->port
),
1123 I40E_GLPRT_PTC1522L(hw
->port
),
1124 pf
->stat_offsets_loaded
,
1125 &osd
->tx_size_1522
, &nsd
->tx_size_1522
);
1126 i40e_stat_update48(hw
, I40E_GLPRT_PTC9522H(hw
->port
),
1127 I40E_GLPRT_PTC9522L(hw
->port
),
1128 pf
->stat_offsets_loaded
,
1129 &osd
->tx_size_big
, &nsd
->tx_size_big
);
1131 i40e_stat_update32(hw
, I40E_GLPRT_RUC(hw
->port
),
1132 pf
->stat_offsets_loaded
,
1133 &osd
->rx_undersize
, &nsd
->rx_undersize
);
1134 i40e_stat_update32(hw
, I40E_GLPRT_RFC(hw
->port
),
1135 pf
->stat_offsets_loaded
,
1136 &osd
->rx_fragments
, &nsd
->rx_fragments
);
1137 i40e_stat_update32(hw
, I40E_GLPRT_ROC(hw
->port
),
1138 pf
->stat_offsets_loaded
,
1139 &osd
->rx_oversize
, &nsd
->rx_oversize
);
1140 i40e_stat_update32(hw
, I40E_GLPRT_RJC(hw
->port
),
1141 pf
->stat_offsets_loaded
,
1142 &osd
->rx_jabber
, &nsd
->rx_jabber
);
1145 i40e_stat_update32(hw
,
1146 I40E_GLQF_PCNT(I40E_FD_ATR_STAT_IDX(pf
->hw
.pf_id
)),
1147 pf
->stat_offsets_loaded
,
1148 &osd
->fd_atr_match
, &nsd
->fd_atr_match
);
1149 i40e_stat_update32(hw
,
1150 I40E_GLQF_PCNT(I40E_FD_SB_STAT_IDX(pf
->hw
.pf_id
)),
1151 pf
->stat_offsets_loaded
,
1152 &osd
->fd_sb_match
, &nsd
->fd_sb_match
);
1153 i40e_stat_update32(hw
,
1154 I40E_GLQF_PCNT(I40E_FD_ATR_TUNNEL_STAT_IDX(pf
->hw
.pf_id
)),
1155 pf
->stat_offsets_loaded
,
1156 &osd
->fd_atr_tunnel_match
, &nsd
->fd_atr_tunnel_match
);
1158 val
= rd32(hw
, I40E_PRTPM_EEE_STAT
);
1159 nsd
->tx_lpi_status
=
1160 (val
& I40E_PRTPM_EEE_STAT_TX_LPI_STATUS_MASK
) >>
1161 I40E_PRTPM_EEE_STAT_TX_LPI_STATUS_SHIFT
;
1162 nsd
->rx_lpi_status
=
1163 (val
& I40E_PRTPM_EEE_STAT_RX_LPI_STATUS_MASK
) >>
1164 I40E_PRTPM_EEE_STAT_RX_LPI_STATUS_SHIFT
;
1165 i40e_stat_update32(hw
, I40E_PRTPM_TLPIC
,
1166 pf
->stat_offsets_loaded
,
1167 &osd
->tx_lpi_count
, &nsd
->tx_lpi_count
);
1168 i40e_stat_update32(hw
, I40E_PRTPM_RLPIC
,
1169 pf
->stat_offsets_loaded
,
1170 &osd
->rx_lpi_count
, &nsd
->rx_lpi_count
);
1172 if (pf
->flags
& I40E_FLAG_FD_SB_ENABLED
&&
1173 !(pf
->auto_disable_flags
& I40E_FLAG_FD_SB_ENABLED
))
1174 nsd
->fd_sb_status
= true;
1176 nsd
->fd_sb_status
= false;
1178 if (pf
->flags
& I40E_FLAG_FD_ATR_ENABLED
&&
1179 !(pf
->auto_disable_flags
& I40E_FLAG_FD_ATR_ENABLED
))
1180 nsd
->fd_atr_status
= true;
1182 nsd
->fd_atr_status
= false;
1184 pf
->stat_offsets_loaded
= true;
1188 * i40e_update_stats - Update the various statistics counters.
1189 * @vsi: the VSI to be updated
1191 * Update the various stats for this VSI and its related entities.
1193 void i40e_update_stats(struct i40e_vsi
*vsi
)
1195 struct i40e_pf
*pf
= vsi
->back
;
1197 if (vsi
== pf
->vsi
[pf
->lan_vsi
])
1198 i40e_update_pf_stats(pf
);
1200 i40e_update_vsi_stats(vsi
);
1202 i40e_update_fcoe_stats(vsi
);
1207 * i40e_find_filter - Search VSI filter list for specific mac/vlan filter
1208 * @vsi: the VSI to be searched
1209 * @macaddr: the MAC address
1211 * @is_vf: make sure its a VF filter, else doesn't matter
1212 * @is_netdev: make sure its a netdev filter, else doesn't matter
1214 * Returns ptr to the filter object or NULL
1216 static struct i40e_mac_filter
*i40e_find_filter(struct i40e_vsi
*vsi
,
1217 u8
*macaddr
, s16 vlan
,
1218 bool is_vf
, bool is_netdev
)
1220 struct i40e_mac_filter
*f
;
1222 if (!vsi
|| !macaddr
)
1225 list_for_each_entry(f
, &vsi
->mac_filter_list
, list
) {
1226 if ((ether_addr_equal(macaddr
, f
->macaddr
)) &&
1227 (vlan
== f
->vlan
) &&
1228 (!is_vf
|| f
->is_vf
) &&
1229 (!is_netdev
|| f
->is_netdev
))
1236 * i40e_find_mac - Find a mac addr in the macvlan filters list
1237 * @vsi: the VSI to be searched
1238 * @macaddr: the MAC address we are searching for
1239 * @is_vf: make sure its a VF filter, else doesn't matter
1240 * @is_netdev: make sure its a netdev filter, else doesn't matter
1242 * Returns the first filter with the provided MAC address or NULL if
1243 * MAC address was not found
1245 struct i40e_mac_filter
*i40e_find_mac(struct i40e_vsi
*vsi
, u8
*macaddr
,
1246 bool is_vf
, bool is_netdev
)
1248 struct i40e_mac_filter
*f
;
1250 if (!vsi
|| !macaddr
)
1253 list_for_each_entry(f
, &vsi
->mac_filter_list
, list
) {
1254 if ((ether_addr_equal(macaddr
, f
->macaddr
)) &&
1255 (!is_vf
|| f
->is_vf
) &&
1256 (!is_netdev
|| f
->is_netdev
))
1263 * i40e_is_vsi_in_vlan - Check if VSI is in vlan mode
1264 * @vsi: the VSI to be searched
1266 * Returns true if VSI is in vlan mode or false otherwise
1268 bool i40e_is_vsi_in_vlan(struct i40e_vsi
*vsi
)
1270 struct i40e_mac_filter
*f
;
1272 /* Only -1 for all the filters denotes not in vlan mode
1273 * so we have to go through all the list in order to make sure
1275 list_for_each_entry(f
, &vsi
->mac_filter_list
, list
) {
1276 if (f
->vlan
>= 0 || vsi
->info
.pvid
)
1284 * i40e_put_mac_in_vlan - Make macvlan filters from macaddrs and vlans
1285 * @vsi: the VSI to be searched
1286 * @macaddr: the mac address to be filtered
1287 * @is_vf: true if it is a VF
1288 * @is_netdev: true if it is a netdev
1290 * Goes through all the macvlan filters and adds a
1291 * macvlan filter for each unique vlan that already exists
1293 * Returns first filter found on success, else NULL
1295 struct i40e_mac_filter
*i40e_put_mac_in_vlan(struct i40e_vsi
*vsi
, u8
*macaddr
,
1296 bool is_vf
, bool is_netdev
)
1298 struct i40e_mac_filter
*f
;
1300 list_for_each_entry(f
, &vsi
->mac_filter_list
, list
) {
1302 f
->vlan
= le16_to_cpu(vsi
->info
.pvid
);
1303 if (!i40e_find_filter(vsi
, macaddr
, f
->vlan
,
1304 is_vf
, is_netdev
)) {
1305 if (!i40e_add_filter(vsi
, macaddr
, f
->vlan
,
1311 return list_first_entry_or_null(&vsi
->mac_filter_list
,
1312 struct i40e_mac_filter
, list
);
1316 * i40e_rm_default_mac_filter - Remove the default MAC filter set by NVM
1317 * @vsi: the PF Main VSI - inappropriate for any other VSI
1318 * @macaddr: the MAC address
1320 * Some older firmware configurations set up a default promiscuous VLAN
1321 * filter that needs to be removed.
1323 static int i40e_rm_default_mac_filter(struct i40e_vsi
*vsi
, u8
*macaddr
)
1325 struct i40e_aqc_remove_macvlan_element_data element
;
1326 struct i40e_pf
*pf
= vsi
->back
;
1329 /* Only appropriate for the PF main VSI */
1330 if (vsi
->type
!= I40E_VSI_MAIN
)
1333 memset(&element
, 0, sizeof(element
));
1334 ether_addr_copy(element
.mac_addr
, macaddr
);
1335 element
.vlan_tag
= 0;
1336 element
.flags
= I40E_AQC_MACVLAN_DEL_PERFECT_MATCH
|
1337 I40E_AQC_MACVLAN_DEL_IGNORE_VLAN
;
1338 ret
= i40e_aq_remove_macvlan(&pf
->hw
, vsi
->seid
, &element
, 1, NULL
);
1346 * i40e_add_filter - Add a mac/vlan filter to the VSI
1347 * @vsi: the VSI to be searched
1348 * @macaddr: the MAC address
1350 * @is_vf: make sure its a VF filter, else doesn't matter
1351 * @is_netdev: make sure its a netdev filter, else doesn't matter
1353 * Returns ptr to the filter object or NULL when no memory available.
1355 struct i40e_mac_filter
*i40e_add_filter(struct i40e_vsi
*vsi
,
1356 u8
*macaddr
, s16 vlan
,
1357 bool is_vf
, bool is_netdev
)
1359 struct i40e_mac_filter
*f
;
1361 if (!vsi
|| !macaddr
)
1364 f
= i40e_find_filter(vsi
, macaddr
, vlan
, is_vf
, is_netdev
);
1366 f
= kzalloc(sizeof(*f
), GFP_ATOMIC
);
1368 goto add_filter_out
;
1370 ether_addr_copy(f
->macaddr
, macaddr
);
1374 INIT_LIST_HEAD(&f
->list
);
1375 list_add(&f
->list
, &vsi
->mac_filter_list
);
1378 /* increment counter and add a new flag if needed */
1384 } else if (is_netdev
) {
1385 if (!f
->is_netdev
) {
1386 f
->is_netdev
= true;
1393 /* changed tells sync_filters_subtask to
1394 * push the filter down to the firmware
1397 vsi
->flags
|= I40E_VSI_FLAG_FILTER_CHANGED
;
1398 vsi
->back
->flags
|= I40E_FLAG_FILTER_SYNC
;
1406 * i40e_del_filter - Remove a mac/vlan filter from the VSI
1407 * @vsi: the VSI to be searched
1408 * @macaddr: the MAC address
1410 * @is_vf: make sure it's a VF filter, else doesn't matter
1411 * @is_netdev: make sure it's a netdev filter, else doesn't matter
1413 void i40e_del_filter(struct i40e_vsi
*vsi
,
1414 u8
*macaddr
, s16 vlan
,
1415 bool is_vf
, bool is_netdev
)
1417 struct i40e_mac_filter
*f
;
1419 if (!vsi
|| !macaddr
)
1422 f
= i40e_find_filter(vsi
, macaddr
, vlan
, is_vf
, is_netdev
);
1423 if (!f
|| f
->counter
== 0)
1431 } else if (is_netdev
) {
1433 f
->is_netdev
= false;
1437 /* make sure we don't remove a filter in use by VF or netdev */
1439 min_f
+= (f
->is_vf
? 1 : 0);
1440 min_f
+= (f
->is_netdev
? 1 : 0);
1442 if (f
->counter
> min_f
)
1446 /* counter == 0 tells sync_filters_subtask to
1447 * remove the filter from the firmware's list
1449 if (f
->counter
== 0) {
1451 vsi
->flags
|= I40E_VSI_FLAG_FILTER_CHANGED
;
1452 vsi
->back
->flags
|= I40E_FLAG_FILTER_SYNC
;
1457 * i40e_set_mac - NDO callback to set mac address
1458 * @netdev: network interface device structure
1459 * @p: pointer to an address structure
1461 * Returns 0 on success, negative on failure
1464 int i40e_set_mac(struct net_device
*netdev
, void *p
)
1466 static int i40e_set_mac(struct net_device
*netdev
, void *p
)
1469 struct i40e_netdev_priv
*np
= netdev_priv(netdev
);
1470 struct i40e_vsi
*vsi
= np
->vsi
;
1471 struct i40e_pf
*pf
= vsi
->back
;
1472 struct i40e_hw
*hw
= &pf
->hw
;
1473 struct sockaddr
*addr
= p
;
1474 struct i40e_mac_filter
*f
;
1476 if (!is_valid_ether_addr(addr
->sa_data
))
1477 return -EADDRNOTAVAIL
;
1479 if (ether_addr_equal(netdev
->dev_addr
, addr
->sa_data
)) {
1480 netdev_info(netdev
, "already using mac address %pM\n",
1485 if (test_bit(__I40E_DOWN
, &vsi
->back
->state
) ||
1486 test_bit(__I40E_RESET_RECOVERY_PENDING
, &vsi
->back
->state
))
1487 return -EADDRNOTAVAIL
;
1489 if (ether_addr_equal(hw
->mac
.addr
, addr
->sa_data
))
1490 netdev_info(netdev
, "returning to hw mac address %pM\n",
1493 netdev_info(netdev
, "set new mac address %pM\n", addr
->sa_data
);
1495 if (vsi
->type
== I40E_VSI_MAIN
) {
1497 ret
= i40e_aq_mac_address_write(&vsi
->back
->hw
,
1498 I40E_AQC_WRITE_TYPE_LAA_WOL
,
1499 addr
->sa_data
, NULL
);
1502 "Addr change for Main VSI failed: %d\n",
1504 return -EADDRNOTAVAIL
;
1508 if (ether_addr_equal(netdev
->dev_addr
, hw
->mac
.addr
)) {
1509 struct i40e_aqc_remove_macvlan_element_data element
;
1511 memset(&element
, 0, sizeof(element
));
1512 ether_addr_copy(element
.mac_addr
, netdev
->dev_addr
);
1513 element
.flags
= I40E_AQC_MACVLAN_DEL_PERFECT_MATCH
;
1514 i40e_aq_remove_macvlan(&pf
->hw
, vsi
->seid
, &element
, 1, NULL
);
1516 i40e_del_filter(vsi
, netdev
->dev_addr
, I40E_VLAN_ANY
,
1520 if (ether_addr_equal(addr
->sa_data
, hw
->mac
.addr
)) {
1521 struct i40e_aqc_add_macvlan_element_data element
;
1523 memset(&element
, 0, sizeof(element
));
1524 ether_addr_copy(element
.mac_addr
, hw
->mac
.addr
);
1525 element
.flags
= cpu_to_le16(I40E_AQC_MACVLAN_ADD_PERFECT_MATCH
);
1526 i40e_aq_add_macvlan(&pf
->hw
, vsi
->seid
, &element
, 1, NULL
);
1528 f
= i40e_add_filter(vsi
, addr
->sa_data
, I40E_VLAN_ANY
,
1534 i40e_sync_vsi_filters(vsi
, false);
1535 ether_addr_copy(netdev
->dev_addr
, addr
->sa_data
);
1541 * i40e_vsi_setup_queue_map - Setup a VSI queue map based on enabled_tc
1542 * @vsi: the VSI being setup
1543 * @ctxt: VSI context structure
1544 * @enabled_tc: Enabled TCs bitmap
1545 * @is_add: True if called before Add VSI
1547 * Setup VSI queue mapping for enabled traffic classes.
1550 void i40e_vsi_setup_queue_map(struct i40e_vsi
*vsi
,
1551 struct i40e_vsi_context
*ctxt
,
1555 static void i40e_vsi_setup_queue_map(struct i40e_vsi
*vsi
,
1556 struct i40e_vsi_context
*ctxt
,
1561 struct i40e_pf
*pf
= vsi
->back
;
1571 sections
= I40E_AQ_VSI_PROP_QUEUE_MAP_VALID
;
1574 if (enabled_tc
&& (vsi
->back
->flags
& I40E_FLAG_DCB_ENABLED
)) {
1575 /* Find numtc from enabled TC bitmap */
1576 for (i
= 0; i
< I40E_MAX_TRAFFIC_CLASS
; i
++) {
1577 if (enabled_tc
& BIT_ULL(i
)) /* TC is enabled */
1581 dev_warn(&pf
->pdev
->dev
, "DCB is enabled but no TC enabled, forcing TC0\n");
1585 /* At least TC0 is enabled in case of non-DCB case */
1589 vsi
->tc_config
.numtc
= numtc
;
1590 vsi
->tc_config
.enabled_tc
= enabled_tc
? enabled_tc
: 1;
1591 /* Number of queues per enabled TC */
1592 /* In MFP case we can have a much lower count of MSIx
1593 * vectors available and so we need to lower the used
1596 if (pf
->flags
& I40E_FLAG_MSIX_ENABLED
)
1597 qcount
= min_t(int, vsi
->alloc_queue_pairs
, pf
->num_lan_msix
);
1599 qcount
= vsi
->alloc_queue_pairs
;
1600 num_tc_qps
= qcount
/ numtc
;
1601 num_tc_qps
= min_t(int, num_tc_qps
, i40e_pf_get_max_q_per_tc(pf
));
1603 /* Setup queue offset/count for all TCs for given VSI */
1604 for (i
= 0; i
< I40E_MAX_TRAFFIC_CLASS
; i
++) {
1605 /* See if the given TC is enabled for the given VSI */
1606 if (vsi
->tc_config
.enabled_tc
& BIT_ULL(i
)) {
1610 switch (vsi
->type
) {
1612 qcount
= min_t(int, pf
->rss_size
, num_tc_qps
);
1616 qcount
= num_tc_qps
;
1620 case I40E_VSI_SRIOV
:
1621 case I40E_VSI_VMDQ2
:
1623 qcount
= num_tc_qps
;
1627 vsi
->tc_config
.tc_info
[i
].qoffset
= offset
;
1628 vsi
->tc_config
.tc_info
[i
].qcount
= qcount
;
1630 /* find the next higher power-of-2 of num queue pairs */
1633 while (num_qps
&& (BIT_ULL(pow
) < qcount
)) {
1638 vsi
->tc_config
.tc_info
[i
].netdev_tc
= netdev_tc
++;
1640 (offset
<< I40E_AQ_VSI_TC_QUE_OFFSET_SHIFT
) |
1641 (pow
<< I40E_AQ_VSI_TC_QUE_NUMBER_SHIFT
);
1645 /* TC is not enabled so set the offset to
1646 * default queue and allocate one queue
1649 vsi
->tc_config
.tc_info
[i
].qoffset
= 0;
1650 vsi
->tc_config
.tc_info
[i
].qcount
= 1;
1651 vsi
->tc_config
.tc_info
[i
].netdev_tc
= 0;
1655 ctxt
->info
.tc_mapping
[i
] = cpu_to_le16(qmap
);
1658 /* Set actual Tx/Rx queue pairs */
1659 vsi
->num_queue_pairs
= offset
;
1660 if ((vsi
->type
== I40E_VSI_MAIN
) && (numtc
== 1)) {
1661 if (vsi
->req_queue_pairs
> 0)
1662 vsi
->num_queue_pairs
= vsi
->req_queue_pairs
;
1663 else if (pf
->flags
& I40E_FLAG_MSIX_ENABLED
)
1664 vsi
->num_queue_pairs
= pf
->num_lan_msix
;
1667 /* Scheduler section valid can only be set for ADD VSI */
1669 sections
|= I40E_AQ_VSI_PROP_SCHED_VALID
;
1671 ctxt
->info
.up_enable_bits
= enabled_tc
;
1673 if (vsi
->type
== I40E_VSI_SRIOV
) {
1674 ctxt
->info
.mapping_flags
|=
1675 cpu_to_le16(I40E_AQ_VSI_QUE_MAP_NONCONTIG
);
1676 for (i
= 0; i
< vsi
->num_queue_pairs
; i
++)
1677 ctxt
->info
.queue_mapping
[i
] =
1678 cpu_to_le16(vsi
->base_queue
+ i
);
1680 ctxt
->info
.mapping_flags
|=
1681 cpu_to_le16(I40E_AQ_VSI_QUE_MAP_CONTIG
);
1682 ctxt
->info
.queue_mapping
[0] = cpu_to_le16(vsi
->base_queue
);
1684 ctxt
->info
.valid_sections
|= cpu_to_le16(sections
);
1688 * i40e_set_rx_mode - NDO callback to set the netdev filters
1689 * @netdev: network interface device structure
1692 void i40e_set_rx_mode(struct net_device
*netdev
)
1694 static void i40e_set_rx_mode(struct net_device
*netdev
)
1697 struct i40e_netdev_priv
*np
= netdev_priv(netdev
);
1698 struct i40e_mac_filter
*f
, *ftmp
;
1699 struct i40e_vsi
*vsi
= np
->vsi
;
1700 struct netdev_hw_addr
*uca
;
1701 struct netdev_hw_addr
*mca
;
1702 struct netdev_hw_addr
*ha
;
1704 /* add addr if not already in the filter list */
1705 netdev_for_each_uc_addr(uca
, netdev
) {
1706 if (!i40e_find_mac(vsi
, uca
->addr
, false, true)) {
1707 if (i40e_is_vsi_in_vlan(vsi
))
1708 i40e_put_mac_in_vlan(vsi
, uca
->addr
,
1711 i40e_add_filter(vsi
, uca
->addr
, I40E_VLAN_ANY
,
1716 netdev_for_each_mc_addr(mca
, netdev
) {
1717 if (!i40e_find_mac(vsi
, mca
->addr
, false, true)) {
1718 if (i40e_is_vsi_in_vlan(vsi
))
1719 i40e_put_mac_in_vlan(vsi
, mca
->addr
,
1722 i40e_add_filter(vsi
, mca
->addr
, I40E_VLAN_ANY
,
1727 /* remove filter if not in netdev list */
1728 list_for_each_entry_safe(f
, ftmp
, &vsi
->mac_filter_list
, list
) {
1734 if (is_multicast_ether_addr(f
->macaddr
)) {
1735 netdev_for_each_mc_addr(mca
, netdev
) {
1736 if (ether_addr_equal(mca
->addr
, f
->macaddr
)) {
1742 netdev_for_each_uc_addr(uca
, netdev
) {
1743 if (ether_addr_equal(uca
->addr
, f
->macaddr
)) {
1749 for_each_dev_addr(netdev
, ha
) {
1750 if (ether_addr_equal(ha
->addr
, f
->macaddr
)) {
1758 vsi
, f
->macaddr
, I40E_VLAN_ANY
, false, true);
1761 /* check for other flag changes */
1762 if (vsi
->current_netdev_flags
!= vsi
->netdev
->flags
) {
1763 vsi
->flags
|= I40E_VSI_FLAG_FILTER_CHANGED
;
1764 vsi
->back
->flags
|= I40E_FLAG_FILTER_SYNC
;
1769 * i40e_sync_vsi_filters - Update the VSI filter list to the HW
1770 * @vsi: ptr to the VSI
1771 * @grab_rtnl: whether RTNL needs to be grabbed
1773 * Push any outstanding VSI filter changes through the AdminQ.
1775 * Returns 0 or error value
1777 int i40e_sync_vsi_filters(struct i40e_vsi
*vsi
, bool grab_rtnl
)
1779 struct i40e_mac_filter
*f
, *ftmp
;
1780 bool promisc_forced_on
= false;
1781 bool add_happened
= false;
1782 int filter_list_len
= 0;
1783 u32 changed_flags
= 0;
1784 i40e_status ret
= 0;
1791 /* empty array typed pointers, kcalloc later */
1792 struct i40e_aqc_add_macvlan_element_data
*add_list
;
1793 struct i40e_aqc_remove_macvlan_element_data
*del_list
;
1795 while (test_and_set_bit(__I40E_CONFIG_BUSY
, &vsi
->state
))
1796 usleep_range(1000, 2000);
1800 changed_flags
= vsi
->current_netdev_flags
^ vsi
->netdev
->flags
;
1801 vsi
->current_netdev_flags
= vsi
->netdev
->flags
;
1804 if (vsi
->flags
& I40E_VSI_FLAG_FILTER_CHANGED
) {
1805 vsi
->flags
&= ~I40E_VSI_FLAG_FILTER_CHANGED
;
1807 filter_list_len
= pf
->hw
.aq
.asq_buf_size
/
1808 sizeof(struct i40e_aqc_remove_macvlan_element_data
);
1809 del_list
= kcalloc(filter_list_len
,
1810 sizeof(struct i40e_aqc_remove_macvlan_element_data
),
1815 list_for_each_entry_safe(f
, ftmp
, &vsi
->mac_filter_list
, list
) {
1819 if (f
->counter
!= 0)
1824 /* add to delete list */
1825 ether_addr_copy(del_list
[num_del
].mac_addr
, f
->macaddr
);
1826 del_list
[num_del
].vlan_tag
=
1827 cpu_to_le16((u16
)(f
->vlan
==
1828 I40E_VLAN_ANY
? 0 : f
->vlan
));
1830 cmd_flags
|= I40E_AQC_MACVLAN_DEL_PERFECT_MATCH
;
1831 del_list
[num_del
].flags
= cmd_flags
;
1834 /* unlink from filter list */
1838 /* flush a full buffer */
1839 if (num_del
== filter_list_len
) {
1840 ret
= i40e_aq_remove_macvlan(&pf
->hw
,
1841 vsi
->seid
, del_list
, num_del
,
1843 aq_err
= pf
->hw
.aq
.asq_last_status
;
1845 memset(del_list
, 0, sizeof(*del_list
));
1847 if (ret
&& aq_err
!= I40E_AQ_RC_ENOENT
)
1848 dev_info(&pf
->pdev
->dev
,
1849 "ignoring delete macvlan error, err %s, aq_err %s while flushing a full buffer\n",
1850 i40e_stat_str(&pf
->hw
, ret
),
1851 i40e_aq_str(&pf
->hw
, aq_err
));
1855 ret
= i40e_aq_remove_macvlan(&pf
->hw
, vsi
->seid
,
1856 del_list
, num_del
, NULL
);
1857 aq_err
= pf
->hw
.aq
.asq_last_status
;
1860 if (ret
&& aq_err
!= I40E_AQ_RC_ENOENT
)
1861 dev_info(&pf
->pdev
->dev
,
1862 "ignoring delete macvlan error, err %s aq_err %s\n",
1863 i40e_stat_str(&pf
->hw
, ret
),
1864 i40e_aq_str(&pf
->hw
, aq_err
));
1870 /* do all the adds now */
1871 filter_list_len
= pf
->hw
.aq
.asq_buf_size
/
1872 sizeof(struct i40e_aqc_add_macvlan_element_data
),
1873 add_list
= kcalloc(filter_list_len
,
1874 sizeof(struct i40e_aqc_add_macvlan_element_data
),
1879 list_for_each_entry_safe(f
, ftmp
, &vsi
->mac_filter_list
, list
) {
1883 if (f
->counter
== 0)
1886 add_happened
= true;
1889 /* add to add array */
1890 ether_addr_copy(add_list
[num_add
].mac_addr
, f
->macaddr
);
1891 add_list
[num_add
].vlan_tag
=
1893 (u16
)(f
->vlan
== I40E_VLAN_ANY
? 0 : f
->vlan
));
1894 add_list
[num_add
].queue_number
= 0;
1896 cmd_flags
|= I40E_AQC_MACVLAN_ADD_PERFECT_MATCH
;
1897 add_list
[num_add
].flags
= cpu_to_le16(cmd_flags
);
1900 /* flush a full buffer */
1901 if (num_add
== filter_list_len
) {
1902 ret
= i40e_aq_add_macvlan(&pf
->hw
, vsi
->seid
,
1905 aq_err
= pf
->hw
.aq
.asq_last_status
;
1910 memset(add_list
, 0, sizeof(*add_list
));
1914 ret
= i40e_aq_add_macvlan(&pf
->hw
, vsi
->seid
,
1915 add_list
, num_add
, NULL
);
1916 aq_err
= pf
->hw
.aq
.asq_last_status
;
1922 if (add_happened
&& ret
&& aq_err
!= I40E_AQ_RC_EINVAL
) {
1923 dev_info(&pf
->pdev
->dev
,
1924 "add filter failed, err %s aq_err %s\n",
1925 i40e_stat_str(&pf
->hw
, ret
),
1926 i40e_aq_str(&pf
->hw
, aq_err
));
1927 if ((pf
->hw
.aq
.asq_last_status
== I40E_AQ_RC_ENOSPC
) &&
1928 !test_bit(__I40E_FILTER_OVERFLOW_PROMISC
,
1930 promisc_forced_on
= true;
1931 set_bit(__I40E_FILTER_OVERFLOW_PROMISC
,
1933 dev_info(&pf
->pdev
->dev
, "promiscuous mode forced on\n");
1938 /* check for changes in promiscuous modes */
1939 if (changed_flags
& IFF_ALLMULTI
) {
1940 bool cur_multipromisc
;
1941 cur_multipromisc
= !!(vsi
->current_netdev_flags
& IFF_ALLMULTI
);
1942 ret
= i40e_aq_set_vsi_multicast_promiscuous(&vsi
->back
->hw
,
1947 dev_info(&pf
->pdev
->dev
,
1948 "set multi promisc failed, err %s aq_err %s\n",
1949 i40e_stat_str(&pf
->hw
, ret
),
1950 i40e_aq_str(&pf
->hw
,
1951 pf
->hw
.aq
.asq_last_status
));
1953 if ((changed_flags
& IFF_PROMISC
) || promisc_forced_on
) {
1955 cur_promisc
= (!!(vsi
->current_netdev_flags
& IFF_PROMISC
) ||
1956 test_bit(__I40E_FILTER_OVERFLOW_PROMISC
,
1958 if (vsi
->type
== I40E_VSI_MAIN
&& pf
->lan_veb
!= I40E_NO_VEB
) {
1959 /* set defport ON for Main VSI instead of true promisc
1960 * this way we will get all unicast/multicast and VLAN
1961 * promisc behavior but will not get VF or VMDq traffic
1962 * replicated on the Main VSI.
1964 if (pf
->cur_promisc
!= cur_promisc
) {
1965 pf
->cur_promisc
= cur_promisc
;
1967 i40e_do_reset_safe(pf
,
1968 BIT(__I40E_PF_RESET_REQUESTED
));
1971 BIT(__I40E_PF_RESET_REQUESTED
));
1974 ret
= i40e_aq_set_vsi_unicast_promiscuous(
1979 dev_info(&pf
->pdev
->dev
,
1980 "set unicast promisc failed, err %d, aq_err %d\n",
1981 ret
, pf
->hw
.aq
.asq_last_status
);
1982 ret
= i40e_aq_set_vsi_multicast_promiscuous(
1987 dev_info(&pf
->pdev
->dev
,
1988 "set multicast promisc failed, err %d, aq_err %d\n",
1989 ret
, pf
->hw
.aq
.asq_last_status
);
1991 ret
= i40e_aq_set_vsi_broadcast(&vsi
->back
->hw
,
1995 dev_info(&pf
->pdev
->dev
,
1996 "set brdcast promisc failed, err %s, aq_err %s\n",
1997 i40e_stat_str(&pf
->hw
, ret
),
1998 i40e_aq_str(&pf
->hw
,
1999 pf
->hw
.aq
.asq_last_status
));
2002 clear_bit(__I40E_CONFIG_BUSY
, &vsi
->state
);
2007 * i40e_sync_filters_subtask - Sync the VSI filter list with HW
2008 * @pf: board private structure
2010 static void i40e_sync_filters_subtask(struct i40e_pf
*pf
)
2014 if (!pf
|| !(pf
->flags
& I40E_FLAG_FILTER_SYNC
))
2016 pf
->flags
&= ~I40E_FLAG_FILTER_SYNC
;
2018 for (v
= 0; v
< pf
->num_alloc_vsi
; v
++) {
2020 (pf
->vsi
[v
]->flags
& I40E_VSI_FLAG_FILTER_CHANGED
))
2021 i40e_sync_vsi_filters(pf
->vsi
[v
], true);
2026 * i40e_change_mtu - NDO callback to change the Maximum Transfer Unit
2027 * @netdev: network interface device structure
2028 * @new_mtu: new value for maximum frame size
2030 * Returns 0 on success, negative on failure
2032 static int i40e_change_mtu(struct net_device
*netdev
, int new_mtu
)
2034 struct i40e_netdev_priv
*np
= netdev_priv(netdev
);
2035 int max_frame
= new_mtu
+ ETH_HLEN
+ ETH_FCS_LEN
+ VLAN_HLEN
;
2036 struct i40e_vsi
*vsi
= np
->vsi
;
2038 /* MTU < 68 is an error and causes problems on some kernels */
2039 if ((new_mtu
< 68) || (max_frame
> I40E_MAX_RXBUFFER
))
2042 netdev_info(netdev
, "changing MTU from %d to %d\n",
2043 netdev
->mtu
, new_mtu
);
2044 netdev
->mtu
= new_mtu
;
2045 if (netif_running(netdev
))
2046 i40e_vsi_reinit_locked(vsi
);
2052 * i40e_ioctl - Access the hwtstamp interface
2053 * @netdev: network interface device structure
2054 * @ifr: interface request data
2055 * @cmd: ioctl command
2057 int i40e_ioctl(struct net_device
*netdev
, struct ifreq
*ifr
, int cmd
)
2059 struct i40e_netdev_priv
*np
= netdev_priv(netdev
);
2060 struct i40e_pf
*pf
= np
->vsi
->back
;
2064 return i40e_ptp_get_ts_config(pf
, ifr
);
2066 return i40e_ptp_set_ts_config(pf
, ifr
);
2073 * i40e_vlan_stripping_enable - Turn on vlan stripping for the VSI
2074 * @vsi: the vsi being adjusted
2076 void i40e_vlan_stripping_enable(struct i40e_vsi
*vsi
)
2078 struct i40e_vsi_context ctxt
;
2081 if ((vsi
->info
.valid_sections
&
2082 cpu_to_le16(I40E_AQ_VSI_PROP_VLAN_VALID
)) &&
2083 ((vsi
->info
.port_vlan_flags
& I40E_AQ_VSI_PVLAN_MODE_MASK
) == 0))
2084 return; /* already enabled */
2086 vsi
->info
.valid_sections
= cpu_to_le16(I40E_AQ_VSI_PROP_VLAN_VALID
);
2087 vsi
->info
.port_vlan_flags
= I40E_AQ_VSI_PVLAN_MODE_ALL
|
2088 I40E_AQ_VSI_PVLAN_EMOD_STR_BOTH
;
2090 ctxt
.seid
= vsi
->seid
;
2091 ctxt
.info
= vsi
->info
;
2092 ret
= i40e_aq_update_vsi_params(&vsi
->back
->hw
, &ctxt
, NULL
);
2094 dev_info(&vsi
->back
->pdev
->dev
,
2095 "update vlan stripping failed, err %s aq_err %s\n",
2096 i40e_stat_str(&vsi
->back
->hw
, ret
),
2097 i40e_aq_str(&vsi
->back
->hw
,
2098 vsi
->back
->hw
.aq
.asq_last_status
));
2103 * i40e_vlan_stripping_disable - Turn off vlan stripping for the VSI
2104 * @vsi: the vsi being adjusted
2106 void i40e_vlan_stripping_disable(struct i40e_vsi
*vsi
)
2108 struct i40e_vsi_context ctxt
;
2111 if ((vsi
->info
.valid_sections
&
2112 cpu_to_le16(I40E_AQ_VSI_PROP_VLAN_VALID
)) &&
2113 ((vsi
->info
.port_vlan_flags
& I40E_AQ_VSI_PVLAN_EMOD_MASK
) ==
2114 I40E_AQ_VSI_PVLAN_EMOD_MASK
))
2115 return; /* already disabled */
2117 vsi
->info
.valid_sections
= cpu_to_le16(I40E_AQ_VSI_PROP_VLAN_VALID
);
2118 vsi
->info
.port_vlan_flags
= I40E_AQ_VSI_PVLAN_MODE_ALL
|
2119 I40E_AQ_VSI_PVLAN_EMOD_NOTHING
;
2121 ctxt
.seid
= vsi
->seid
;
2122 ctxt
.info
= vsi
->info
;
2123 ret
= i40e_aq_update_vsi_params(&vsi
->back
->hw
, &ctxt
, NULL
);
2125 dev_info(&vsi
->back
->pdev
->dev
,
2126 "update vlan stripping failed, err %s aq_err %s\n",
2127 i40e_stat_str(&vsi
->back
->hw
, ret
),
2128 i40e_aq_str(&vsi
->back
->hw
,
2129 vsi
->back
->hw
.aq
.asq_last_status
));
2134 * i40e_vlan_rx_register - Setup or shutdown vlan offload
2135 * @netdev: network interface to be adjusted
2136 * @features: netdev features to test if VLAN offload is enabled or not
2138 static void i40e_vlan_rx_register(struct net_device
*netdev
, u32 features
)
2140 struct i40e_netdev_priv
*np
= netdev_priv(netdev
);
2141 struct i40e_vsi
*vsi
= np
->vsi
;
2143 if (features
& NETIF_F_HW_VLAN_CTAG_RX
)
2144 i40e_vlan_stripping_enable(vsi
);
2146 i40e_vlan_stripping_disable(vsi
);
2150 * i40e_vsi_add_vlan - Add vsi membership for given vlan
2151 * @vsi: the vsi being configured
2152 * @vid: vlan id to be added (0 = untagged only , -1 = any)
2154 int i40e_vsi_add_vlan(struct i40e_vsi
*vsi
, s16 vid
)
2156 struct i40e_mac_filter
*f
, *add_f
;
2157 bool is_netdev
, is_vf
;
2159 is_vf
= (vsi
->type
== I40E_VSI_SRIOV
);
2160 is_netdev
= !!(vsi
->netdev
);
2163 add_f
= i40e_add_filter(vsi
, vsi
->netdev
->dev_addr
, vid
,
2166 dev_info(&vsi
->back
->pdev
->dev
,
2167 "Could not add vlan filter %d for %pM\n",
2168 vid
, vsi
->netdev
->dev_addr
);
2173 list_for_each_entry(f
, &vsi
->mac_filter_list
, list
) {
2174 add_f
= i40e_add_filter(vsi
, f
->macaddr
, vid
, is_vf
, is_netdev
);
2176 dev_info(&vsi
->back
->pdev
->dev
,
2177 "Could not add vlan filter %d for %pM\n",
2183 /* Now if we add a vlan tag, make sure to check if it is the first
2184 * tag (i.e. a "tag" -1 does exist) and if so replace the -1 "tag"
2185 * with 0, so we now accept untagged and specified tagged traffic
2186 * (and not any taged and untagged)
2189 if (is_netdev
&& i40e_find_filter(vsi
, vsi
->netdev
->dev_addr
,
2191 is_vf
, is_netdev
)) {
2192 i40e_del_filter(vsi
, vsi
->netdev
->dev_addr
,
2193 I40E_VLAN_ANY
, is_vf
, is_netdev
);
2194 add_f
= i40e_add_filter(vsi
, vsi
->netdev
->dev_addr
, 0,
2197 dev_info(&vsi
->back
->pdev
->dev
,
2198 "Could not add filter 0 for %pM\n",
2199 vsi
->netdev
->dev_addr
);
2205 /* Do not assume that I40E_VLAN_ANY should be reset to VLAN 0 */
2206 if (vid
> 0 && !vsi
->info
.pvid
) {
2207 list_for_each_entry(f
, &vsi
->mac_filter_list
, list
) {
2208 if (i40e_find_filter(vsi
, f
->macaddr
, I40E_VLAN_ANY
,
2209 is_vf
, is_netdev
)) {
2210 i40e_del_filter(vsi
, f
->macaddr
, I40E_VLAN_ANY
,
2212 add_f
= i40e_add_filter(vsi
, f
->macaddr
,
2213 0, is_vf
, is_netdev
);
2215 dev_info(&vsi
->back
->pdev
->dev
,
2216 "Could not add filter 0 for %pM\n",
2224 if (test_bit(__I40E_DOWN
, &vsi
->back
->state
) ||
2225 test_bit(__I40E_RESET_RECOVERY_PENDING
, &vsi
->back
->state
))
2228 return i40e_sync_vsi_filters(vsi
, false);
2232 * i40e_vsi_kill_vlan - Remove vsi membership for given vlan
2233 * @vsi: the vsi being configured
2234 * @vid: vlan id to be removed (0 = untagged only , -1 = any)
2236 * Return: 0 on success or negative otherwise
2238 int i40e_vsi_kill_vlan(struct i40e_vsi
*vsi
, s16 vid
)
2240 struct net_device
*netdev
= vsi
->netdev
;
2241 struct i40e_mac_filter
*f
, *add_f
;
2242 bool is_vf
, is_netdev
;
2243 int filter_count
= 0;
2245 is_vf
= (vsi
->type
== I40E_VSI_SRIOV
);
2246 is_netdev
= !!(netdev
);
2249 i40e_del_filter(vsi
, netdev
->dev_addr
, vid
, is_vf
, is_netdev
);
2251 list_for_each_entry(f
, &vsi
->mac_filter_list
, list
)
2252 i40e_del_filter(vsi
, f
->macaddr
, vid
, is_vf
, is_netdev
);
2254 /* go through all the filters for this VSI and if there is only
2255 * vid == 0 it means there are no other filters, so vid 0 must
2256 * be replaced with -1. This signifies that we should from now
2257 * on accept any traffic (with any tag present, or untagged)
2259 list_for_each_entry(f
, &vsi
->mac_filter_list
, list
) {
2262 ether_addr_equal(netdev
->dev_addr
, f
->macaddr
))
2270 if (!filter_count
&& is_netdev
) {
2271 i40e_del_filter(vsi
, netdev
->dev_addr
, 0, is_vf
, is_netdev
);
2272 f
= i40e_add_filter(vsi
, netdev
->dev_addr
, I40E_VLAN_ANY
,
2275 dev_info(&vsi
->back
->pdev
->dev
,
2276 "Could not add filter %d for %pM\n",
2277 I40E_VLAN_ANY
, netdev
->dev_addr
);
2282 if (!filter_count
) {
2283 list_for_each_entry(f
, &vsi
->mac_filter_list
, list
) {
2284 i40e_del_filter(vsi
, f
->macaddr
, 0, is_vf
, is_netdev
);
2285 add_f
= i40e_add_filter(vsi
, f
->macaddr
, I40E_VLAN_ANY
,
2288 dev_info(&vsi
->back
->pdev
->dev
,
2289 "Could not add filter %d for %pM\n",
2290 I40E_VLAN_ANY
, f
->macaddr
);
2296 if (test_bit(__I40E_DOWN
, &vsi
->back
->state
) ||
2297 test_bit(__I40E_RESET_RECOVERY_PENDING
, &vsi
->back
->state
))
2300 return i40e_sync_vsi_filters(vsi
, false);
2304 * i40e_vlan_rx_add_vid - Add a vlan id filter to HW offload
2305 * @netdev: network interface to be adjusted
2306 * @vid: vlan id to be added
2308 * net_device_ops implementation for adding vlan ids
2311 int i40e_vlan_rx_add_vid(struct net_device
*netdev
,
2312 __always_unused __be16 proto
, u16 vid
)
2314 static int i40e_vlan_rx_add_vid(struct net_device
*netdev
,
2315 __always_unused __be16 proto
, u16 vid
)
2318 struct i40e_netdev_priv
*np
= netdev_priv(netdev
);
2319 struct i40e_vsi
*vsi
= np
->vsi
;
2325 netdev_info(netdev
, "adding %pM vid=%d\n", netdev
->dev_addr
, vid
);
2327 /* If the network stack called us with vid = 0 then
2328 * it is asking to receive priority tagged packets with
2329 * vlan id 0. Our HW receives them by default when configured
2330 * to receive untagged packets so there is no need to add an
2331 * extra filter for vlan 0 tagged packets.
2334 ret
= i40e_vsi_add_vlan(vsi
, vid
);
2336 if (!ret
&& (vid
< VLAN_N_VID
))
2337 set_bit(vid
, vsi
->active_vlans
);
2343 * i40e_vlan_rx_kill_vid - Remove a vlan id filter from HW offload
2344 * @netdev: network interface to be adjusted
2345 * @vid: vlan id to be removed
2347 * net_device_ops implementation for removing vlan ids
2350 int i40e_vlan_rx_kill_vid(struct net_device
*netdev
,
2351 __always_unused __be16 proto
, u16 vid
)
2353 static int i40e_vlan_rx_kill_vid(struct net_device
*netdev
,
2354 __always_unused __be16 proto
, u16 vid
)
2357 struct i40e_netdev_priv
*np
= netdev_priv(netdev
);
2358 struct i40e_vsi
*vsi
= np
->vsi
;
2360 netdev_info(netdev
, "removing %pM vid=%d\n", netdev
->dev_addr
, vid
);
2362 /* return code is ignored as there is nothing a user
2363 * can do about failure to remove and a log message was
2364 * already printed from the other function
2366 i40e_vsi_kill_vlan(vsi
, vid
);
2368 clear_bit(vid
, vsi
->active_vlans
);
2374 * i40e_restore_vlan - Reinstate vlans when vsi/netdev comes back up
2375 * @vsi: the vsi being brought back up
2377 static void i40e_restore_vlan(struct i40e_vsi
*vsi
)
2384 i40e_vlan_rx_register(vsi
->netdev
, vsi
->netdev
->features
);
2386 for_each_set_bit(vid
, vsi
->active_vlans
, VLAN_N_VID
)
2387 i40e_vlan_rx_add_vid(vsi
->netdev
, htons(ETH_P_8021Q
),
2392 * i40e_vsi_add_pvid - Add pvid for the VSI
2393 * @vsi: the vsi being adjusted
2394 * @vid: the vlan id to set as a PVID
2396 int i40e_vsi_add_pvid(struct i40e_vsi
*vsi
, u16 vid
)
2398 struct i40e_vsi_context ctxt
;
2401 vsi
->info
.valid_sections
= cpu_to_le16(I40E_AQ_VSI_PROP_VLAN_VALID
);
2402 vsi
->info
.pvid
= cpu_to_le16(vid
);
2403 vsi
->info
.port_vlan_flags
= I40E_AQ_VSI_PVLAN_MODE_TAGGED
|
2404 I40E_AQ_VSI_PVLAN_INSERT_PVID
|
2405 I40E_AQ_VSI_PVLAN_EMOD_STR
;
2407 ctxt
.seid
= vsi
->seid
;
2408 ctxt
.info
= vsi
->info
;
2409 ret
= i40e_aq_update_vsi_params(&vsi
->back
->hw
, &ctxt
, NULL
);
2411 dev_info(&vsi
->back
->pdev
->dev
,
2412 "add pvid failed, err %s aq_err %s\n",
2413 i40e_stat_str(&vsi
->back
->hw
, ret
),
2414 i40e_aq_str(&vsi
->back
->hw
,
2415 vsi
->back
->hw
.aq
.asq_last_status
));
2423 * i40e_vsi_remove_pvid - Remove the pvid from the VSI
2424 * @vsi: the vsi being adjusted
2426 * Just use the vlan_rx_register() service to put it back to normal
2428 void i40e_vsi_remove_pvid(struct i40e_vsi
*vsi
)
2430 i40e_vlan_stripping_disable(vsi
);
2436 * i40e_vsi_setup_tx_resources - Allocate VSI Tx queue resources
2437 * @vsi: ptr to the VSI
2439 * If this function returns with an error, then it's possible one or
2440 * more of the rings is populated (while the rest are not). It is the
2441 * callers duty to clean those orphaned rings.
2443 * Return 0 on success, negative on failure
2445 static int i40e_vsi_setup_tx_resources(struct i40e_vsi
*vsi
)
2449 for (i
= 0; i
< vsi
->num_queue_pairs
&& !err
; i
++)
2450 err
= i40e_setup_tx_descriptors(vsi
->tx_rings
[i
]);
2456 * i40e_vsi_free_tx_resources - Free Tx resources for VSI queues
2457 * @vsi: ptr to the VSI
2459 * Free VSI's transmit software resources
2461 static void i40e_vsi_free_tx_resources(struct i40e_vsi
*vsi
)
2468 for (i
= 0; i
< vsi
->num_queue_pairs
; i
++)
2469 if (vsi
->tx_rings
[i
] && vsi
->tx_rings
[i
]->desc
)
2470 i40e_free_tx_resources(vsi
->tx_rings
[i
]);
2474 * i40e_vsi_setup_rx_resources - Allocate VSI queues Rx resources
2475 * @vsi: ptr to the VSI
2477 * If this function returns with an error, then it's possible one or
2478 * more of the rings is populated (while the rest are not). It is the
2479 * callers duty to clean those orphaned rings.
2481 * Return 0 on success, negative on failure
2483 static int i40e_vsi_setup_rx_resources(struct i40e_vsi
*vsi
)
2487 for (i
= 0; i
< vsi
->num_queue_pairs
&& !err
; i
++)
2488 err
= i40e_setup_rx_descriptors(vsi
->rx_rings
[i
]);
2490 i40e_fcoe_setup_ddp_resources(vsi
);
2496 * i40e_vsi_free_rx_resources - Free Rx Resources for VSI queues
2497 * @vsi: ptr to the VSI
2499 * Free all receive software resources
2501 static void i40e_vsi_free_rx_resources(struct i40e_vsi
*vsi
)
2508 for (i
= 0; i
< vsi
->num_queue_pairs
; i
++)
2509 if (vsi
->rx_rings
[i
] && vsi
->rx_rings
[i
]->desc
)
2510 i40e_free_rx_resources(vsi
->rx_rings
[i
]);
2512 i40e_fcoe_free_ddp_resources(vsi
);
2517 * i40e_config_xps_tx_ring - Configure XPS for a Tx ring
2518 * @ring: The Tx ring to configure
2520 * This enables/disables XPS for a given Tx descriptor ring
2521 * based on the TCs enabled for the VSI that ring belongs to.
2523 static void i40e_config_xps_tx_ring(struct i40e_ring
*ring
)
2525 struct i40e_vsi
*vsi
= ring
->vsi
;
2528 if (!ring
->q_vector
|| !ring
->netdev
)
2531 /* Single TC mode enable XPS */
2532 if (vsi
->tc_config
.numtc
<= 1) {
2533 if (!test_and_set_bit(__I40E_TX_XPS_INIT_DONE
, &ring
->state
))
2534 netif_set_xps_queue(ring
->netdev
,
2535 &ring
->q_vector
->affinity_mask
,
2537 } else if (alloc_cpumask_var(&mask
, GFP_KERNEL
)) {
2538 /* Disable XPS to allow selection based on TC */
2539 bitmap_zero(cpumask_bits(mask
), nr_cpumask_bits
);
2540 netif_set_xps_queue(ring
->netdev
, mask
, ring
->queue_index
);
2541 free_cpumask_var(mask
);
2546 * i40e_configure_tx_ring - Configure a transmit ring context and rest
2547 * @ring: The Tx ring to configure
2549 * Configure the Tx descriptor ring in the HMC context.
2551 static int i40e_configure_tx_ring(struct i40e_ring
*ring
)
2553 struct i40e_vsi
*vsi
= ring
->vsi
;
2554 u16 pf_q
= vsi
->base_queue
+ ring
->queue_index
;
2555 struct i40e_hw
*hw
= &vsi
->back
->hw
;
2556 struct i40e_hmc_obj_txq tx_ctx
;
2557 i40e_status err
= 0;
2560 /* some ATR related tx ring init */
2561 if (vsi
->back
->flags
& I40E_FLAG_FD_ATR_ENABLED
) {
2562 ring
->atr_sample_rate
= vsi
->back
->atr_sample_rate
;
2563 ring
->atr_count
= 0;
2565 ring
->atr_sample_rate
= 0;
2569 i40e_config_xps_tx_ring(ring
);
2571 /* clear the context structure first */
2572 memset(&tx_ctx
, 0, sizeof(tx_ctx
));
2574 tx_ctx
.new_context
= 1;
2575 tx_ctx
.base
= (ring
->dma
/ 128);
2576 tx_ctx
.qlen
= ring
->count
;
2577 tx_ctx
.fd_ena
= !!(vsi
->back
->flags
& (I40E_FLAG_FD_SB_ENABLED
|
2578 I40E_FLAG_FD_ATR_ENABLED
));
2580 tx_ctx
.fc_ena
= (vsi
->type
== I40E_VSI_FCOE
);
2582 tx_ctx
.timesync_ena
= !!(vsi
->back
->flags
& I40E_FLAG_PTP
);
2583 /* FDIR VSI tx ring can still use RS bit and writebacks */
2584 if (vsi
->type
!= I40E_VSI_FDIR
)
2585 tx_ctx
.head_wb_ena
= 1;
2586 tx_ctx
.head_wb_addr
= ring
->dma
+
2587 (ring
->count
* sizeof(struct i40e_tx_desc
));
2589 /* As part of VSI creation/update, FW allocates certain
2590 * Tx arbitration queue sets for each TC enabled for
2591 * the VSI. The FW returns the handles to these queue
2592 * sets as part of the response buffer to Add VSI,
2593 * Update VSI, etc. AQ commands. It is expected that
2594 * these queue set handles be associated with the Tx
2595 * queues by the driver as part of the TX queue context
2596 * initialization. This has to be done regardless of
2597 * DCB as by default everything is mapped to TC0.
2599 tx_ctx
.rdylist
= le16_to_cpu(vsi
->info
.qs_handle
[ring
->dcb_tc
]);
2600 tx_ctx
.rdylist_act
= 0;
2602 /* clear the context in the HMC */
2603 err
= i40e_clear_lan_tx_queue_context(hw
, pf_q
);
2605 dev_info(&vsi
->back
->pdev
->dev
,
2606 "Failed to clear LAN Tx queue context on Tx ring %d (pf_q %d), error: %d\n",
2607 ring
->queue_index
, pf_q
, err
);
2611 /* set the context in the HMC */
2612 err
= i40e_set_lan_tx_queue_context(hw
, pf_q
, &tx_ctx
);
2614 dev_info(&vsi
->back
->pdev
->dev
,
2615 "Failed to set LAN Tx queue context on Tx ring %d (pf_q %d, error: %d\n",
2616 ring
->queue_index
, pf_q
, err
);
2620 /* Now associate this queue with this PCI function */
2621 if (vsi
->type
== I40E_VSI_VMDQ2
) {
2622 qtx_ctl
= I40E_QTX_CTL_VM_QUEUE
;
2623 qtx_ctl
|= ((vsi
->id
) << I40E_QTX_CTL_VFVM_INDX_SHIFT
) &
2624 I40E_QTX_CTL_VFVM_INDX_MASK
;
2626 qtx_ctl
= I40E_QTX_CTL_PF_QUEUE
;
2629 qtx_ctl
|= ((hw
->pf_id
<< I40E_QTX_CTL_PF_INDX_SHIFT
) &
2630 I40E_QTX_CTL_PF_INDX_MASK
);
2631 wr32(hw
, I40E_QTX_CTL(pf_q
), qtx_ctl
);
2634 /* cache tail off for easier writes later */
2635 ring
->tail
= hw
->hw_addr
+ I40E_QTX_TAIL(pf_q
);
2641 * i40e_configure_rx_ring - Configure a receive ring context
2642 * @ring: The Rx ring to configure
2644 * Configure the Rx descriptor ring in the HMC context.
2646 static int i40e_configure_rx_ring(struct i40e_ring
*ring
)
2648 struct i40e_vsi
*vsi
= ring
->vsi
;
2649 u32 chain_len
= vsi
->back
->hw
.func_caps
.rx_buf_chain_len
;
2650 u16 pf_q
= vsi
->base_queue
+ ring
->queue_index
;
2651 struct i40e_hw
*hw
= &vsi
->back
->hw
;
2652 struct i40e_hmc_obj_rxq rx_ctx
;
2653 i40e_status err
= 0;
2657 /* clear the context structure first */
2658 memset(&rx_ctx
, 0, sizeof(rx_ctx
));
2660 ring
->rx_buf_len
= vsi
->rx_buf_len
;
2661 ring
->rx_hdr_len
= vsi
->rx_hdr_len
;
2663 rx_ctx
.dbuff
= ring
->rx_buf_len
>> I40E_RXQ_CTX_DBUFF_SHIFT
;
2664 rx_ctx
.hbuff
= ring
->rx_hdr_len
>> I40E_RXQ_CTX_HBUFF_SHIFT
;
2666 rx_ctx
.base
= (ring
->dma
/ 128);
2667 rx_ctx
.qlen
= ring
->count
;
2669 if (vsi
->back
->flags
& I40E_FLAG_16BYTE_RX_DESC_ENABLED
) {
2670 set_ring_16byte_desc_enabled(ring
);
2676 rx_ctx
.dtype
= vsi
->dtype
;
2678 set_ring_ps_enabled(ring
);
2679 rx_ctx
.hsplit_0
= I40E_RX_SPLIT_L2
|
2681 I40E_RX_SPLIT_TCP_UDP
|
2684 rx_ctx
.hsplit_0
= 0;
2687 rx_ctx
.rxmax
= min_t(u16
, vsi
->max_frame
,
2688 (chain_len
* ring
->rx_buf_len
));
2689 if (hw
->revision_id
== 0)
2690 rx_ctx
.lrxqthresh
= 0;
2692 rx_ctx
.lrxqthresh
= 2;
2693 rx_ctx
.crcstrip
= 1;
2695 /* this controls whether VLAN is stripped from inner headers */
2698 rx_ctx
.fc_ena
= (vsi
->type
== I40E_VSI_FCOE
);
2700 /* set the prefena field to 1 because the manual says to */
2703 /* clear the context in the HMC */
2704 err
= i40e_clear_lan_rx_queue_context(hw
, pf_q
);
2706 dev_info(&vsi
->back
->pdev
->dev
,
2707 "Failed to clear LAN Rx queue context on Rx ring %d (pf_q %d), error: %d\n",
2708 ring
->queue_index
, pf_q
, err
);
2712 /* set the context in the HMC */
2713 err
= i40e_set_lan_rx_queue_context(hw
, pf_q
, &rx_ctx
);
2715 dev_info(&vsi
->back
->pdev
->dev
,
2716 "Failed to set LAN Rx queue context on Rx ring %d (pf_q %d), error: %d\n",
2717 ring
->queue_index
, pf_q
, err
);
2721 /* cache tail for quicker writes, and clear the reg before use */
2722 ring
->tail
= hw
->hw_addr
+ I40E_QRX_TAIL(pf_q
);
2723 writel(0, ring
->tail
);
2725 if (ring_is_ps_enabled(ring
)) {
2726 i40e_alloc_rx_headers(ring
);
2727 i40e_alloc_rx_buffers_ps(ring
, I40E_DESC_UNUSED(ring
));
2729 i40e_alloc_rx_buffers_1buf(ring
, I40E_DESC_UNUSED(ring
));
2736 * i40e_vsi_configure_tx - Configure the VSI for Tx
2737 * @vsi: VSI structure describing this set of rings and resources
2739 * Configure the Tx VSI for operation.
2741 static int i40e_vsi_configure_tx(struct i40e_vsi
*vsi
)
2746 for (i
= 0; (i
< vsi
->num_queue_pairs
) && !err
; i
++)
2747 err
= i40e_configure_tx_ring(vsi
->tx_rings
[i
]);
2753 * i40e_vsi_configure_rx - Configure the VSI for Rx
2754 * @vsi: the VSI being configured
2756 * Configure the Rx VSI for operation.
2758 static int i40e_vsi_configure_rx(struct i40e_vsi
*vsi
)
2763 if (vsi
->netdev
&& (vsi
->netdev
->mtu
> ETH_DATA_LEN
))
2764 vsi
->max_frame
= vsi
->netdev
->mtu
+ ETH_HLEN
2765 + ETH_FCS_LEN
+ VLAN_HLEN
;
2767 vsi
->max_frame
= I40E_RXBUFFER_2048
;
2769 /* figure out correct receive buffer length */
2770 switch (vsi
->back
->flags
& (I40E_FLAG_RX_1BUF_ENABLED
|
2771 I40E_FLAG_RX_PS_ENABLED
)) {
2772 case I40E_FLAG_RX_1BUF_ENABLED
:
2773 vsi
->rx_hdr_len
= 0;
2774 vsi
->rx_buf_len
= vsi
->max_frame
;
2775 vsi
->dtype
= I40E_RX_DTYPE_NO_SPLIT
;
2777 case I40E_FLAG_RX_PS_ENABLED
:
2778 vsi
->rx_hdr_len
= I40E_RX_HDR_SIZE
;
2779 vsi
->rx_buf_len
= I40E_RXBUFFER_2048
;
2780 vsi
->dtype
= I40E_RX_DTYPE_HEADER_SPLIT
;
2783 vsi
->rx_hdr_len
= I40E_RX_HDR_SIZE
;
2784 vsi
->rx_buf_len
= I40E_RXBUFFER_2048
;
2785 vsi
->dtype
= I40E_RX_DTYPE_SPLIT_ALWAYS
;
2790 /* setup rx buffer for FCoE */
2791 if ((vsi
->type
== I40E_VSI_FCOE
) &&
2792 (vsi
->back
->flags
& I40E_FLAG_FCOE_ENABLED
)) {
2793 vsi
->rx_hdr_len
= 0;
2794 vsi
->rx_buf_len
= I40E_RXBUFFER_3072
;
2795 vsi
->max_frame
= I40E_RXBUFFER_3072
;
2796 vsi
->dtype
= I40E_RX_DTYPE_NO_SPLIT
;
2799 #endif /* I40E_FCOE */
2800 /* round up for the chip's needs */
2801 vsi
->rx_hdr_len
= ALIGN(vsi
->rx_hdr_len
,
2802 BIT_ULL(I40E_RXQ_CTX_HBUFF_SHIFT
));
2803 vsi
->rx_buf_len
= ALIGN(vsi
->rx_buf_len
,
2804 BIT_ULL(I40E_RXQ_CTX_DBUFF_SHIFT
));
2806 /* set up individual rings */
2807 for (i
= 0; i
< vsi
->num_queue_pairs
&& !err
; i
++)
2808 err
= i40e_configure_rx_ring(vsi
->rx_rings
[i
]);
2814 * i40e_vsi_config_dcb_rings - Update rings to reflect DCB TC
2815 * @vsi: ptr to the VSI
2817 static void i40e_vsi_config_dcb_rings(struct i40e_vsi
*vsi
)
2819 struct i40e_ring
*tx_ring
, *rx_ring
;
2820 u16 qoffset
, qcount
;
2823 if (!(vsi
->back
->flags
& I40E_FLAG_DCB_ENABLED
)) {
2824 /* Reset the TC information */
2825 for (i
= 0; i
< vsi
->num_queue_pairs
; i
++) {
2826 rx_ring
= vsi
->rx_rings
[i
];
2827 tx_ring
= vsi
->tx_rings
[i
];
2828 rx_ring
->dcb_tc
= 0;
2829 tx_ring
->dcb_tc
= 0;
2833 for (n
= 0; n
< I40E_MAX_TRAFFIC_CLASS
; n
++) {
2834 if (!(vsi
->tc_config
.enabled_tc
& BIT_ULL(n
)))
2837 qoffset
= vsi
->tc_config
.tc_info
[n
].qoffset
;
2838 qcount
= vsi
->tc_config
.tc_info
[n
].qcount
;
2839 for (i
= qoffset
; i
< (qoffset
+ qcount
); i
++) {
2840 rx_ring
= vsi
->rx_rings
[i
];
2841 tx_ring
= vsi
->tx_rings
[i
];
2842 rx_ring
->dcb_tc
= n
;
2843 tx_ring
->dcb_tc
= n
;
2849 * i40e_set_vsi_rx_mode - Call set_rx_mode on a VSI
2850 * @vsi: ptr to the VSI
2852 static void i40e_set_vsi_rx_mode(struct i40e_vsi
*vsi
)
2855 i40e_set_rx_mode(vsi
->netdev
);
2859 * i40e_fdir_filter_restore - Restore the Sideband Flow Director filters
2860 * @vsi: Pointer to the targeted VSI
2862 * This function replays the hlist on the hw where all the SB Flow Director
2863 * filters were saved.
2865 static void i40e_fdir_filter_restore(struct i40e_vsi
*vsi
)
2867 struct i40e_fdir_filter
*filter
;
2868 struct i40e_pf
*pf
= vsi
->back
;
2869 struct hlist_node
*node
;
2871 if (!(pf
->flags
& I40E_FLAG_FD_SB_ENABLED
))
2874 hlist_for_each_entry_safe(filter
, node
,
2875 &pf
->fdir_filter_list
, fdir_node
) {
2876 i40e_add_del_fdir(vsi
, filter
, true);
2881 * i40e_vsi_configure - Set up the VSI for action
2882 * @vsi: the VSI being configured
2884 static int i40e_vsi_configure(struct i40e_vsi
*vsi
)
2888 i40e_set_vsi_rx_mode(vsi
);
2889 i40e_restore_vlan(vsi
);
2890 i40e_vsi_config_dcb_rings(vsi
);
2891 err
= i40e_vsi_configure_tx(vsi
);
2893 err
= i40e_vsi_configure_rx(vsi
);
2899 * i40e_vsi_configure_msix - MSIX mode Interrupt Config in the HW
2900 * @vsi: the VSI being configured
2902 static void i40e_vsi_configure_msix(struct i40e_vsi
*vsi
)
2904 struct i40e_pf
*pf
= vsi
->back
;
2905 struct i40e_q_vector
*q_vector
;
2906 struct i40e_hw
*hw
= &pf
->hw
;
2912 /* The interrupt indexing is offset by 1 in the PFINT_ITRn
2913 * and PFINT_LNKLSTn registers, e.g.:
2914 * PFINT_ITRn[0..n-1] gets msix-1..msix-n (qpair interrupts)
2916 qp
= vsi
->base_queue
;
2917 vector
= vsi
->base_vector
;
2918 for (i
= 0; i
< vsi
->num_q_vectors
; i
++, vector
++) {
2919 q_vector
= vsi
->q_vectors
[i
];
2920 q_vector
->rx
.itr
= ITR_TO_REG(vsi
->rx_itr_setting
);
2921 q_vector
->rx
.latency_range
= I40E_LOW_LATENCY
;
2922 wr32(hw
, I40E_PFINT_ITRN(I40E_RX_ITR
, vector
- 1),
2924 q_vector
->tx
.itr
= ITR_TO_REG(vsi
->tx_itr_setting
);
2925 q_vector
->tx
.latency_range
= I40E_LOW_LATENCY
;
2926 wr32(hw
, I40E_PFINT_ITRN(I40E_TX_ITR
, vector
- 1),
2929 /* Linked list for the queuepairs assigned to this vector */
2930 wr32(hw
, I40E_PFINT_LNKLSTN(vector
- 1), qp
);
2931 for (q
= 0; q
< q_vector
->num_ringpairs
; q
++) {
2932 val
= I40E_QINT_RQCTL_CAUSE_ENA_MASK
|
2933 (I40E_RX_ITR
<< I40E_QINT_RQCTL_ITR_INDX_SHIFT
) |
2934 (vector
<< I40E_QINT_RQCTL_MSIX_INDX_SHIFT
) |
2935 (qp
<< I40E_QINT_RQCTL_NEXTQ_INDX_SHIFT
)|
2937 << I40E_QINT_RQCTL_NEXTQ_TYPE_SHIFT
);
2939 wr32(hw
, I40E_QINT_RQCTL(qp
), val
);
2941 val
= I40E_QINT_TQCTL_CAUSE_ENA_MASK
|
2942 (I40E_TX_ITR
<< I40E_QINT_TQCTL_ITR_INDX_SHIFT
) |
2943 (vector
<< I40E_QINT_TQCTL_MSIX_INDX_SHIFT
) |
2944 ((qp
+1) << I40E_QINT_TQCTL_NEXTQ_INDX_SHIFT
)|
2946 << I40E_QINT_TQCTL_NEXTQ_TYPE_SHIFT
);
2948 /* Terminate the linked list */
2949 if (q
== (q_vector
->num_ringpairs
- 1))
2950 val
|= (I40E_QUEUE_END_OF_LIST
2951 << I40E_QINT_TQCTL_NEXTQ_INDX_SHIFT
);
2953 wr32(hw
, I40E_QINT_TQCTL(qp
), val
);
2962 * i40e_enable_misc_int_causes - enable the non-queue interrupts
2963 * @hw: ptr to the hardware info
2965 static void i40e_enable_misc_int_causes(struct i40e_pf
*pf
)
2967 struct i40e_hw
*hw
= &pf
->hw
;
2970 /* clear things first */
2971 wr32(hw
, I40E_PFINT_ICR0_ENA
, 0); /* disable all */
2972 rd32(hw
, I40E_PFINT_ICR0
); /* read to clear */
2974 val
= I40E_PFINT_ICR0_ENA_ECC_ERR_MASK
|
2975 I40E_PFINT_ICR0_ENA_MAL_DETECT_MASK
|
2976 I40E_PFINT_ICR0_ENA_GRST_MASK
|
2977 I40E_PFINT_ICR0_ENA_PCI_EXCEPTION_MASK
|
2978 I40E_PFINT_ICR0_ENA_GPIO_MASK
|
2979 I40E_PFINT_ICR0_ENA_HMC_ERR_MASK
|
2980 I40E_PFINT_ICR0_ENA_VFLR_MASK
|
2981 I40E_PFINT_ICR0_ENA_ADMINQ_MASK
;
2983 if (pf
->flags
& I40E_FLAG_IWARP_ENABLED
)
2984 val
|= I40E_PFINT_ICR0_ENA_PE_CRITERR_MASK
;
2986 if (pf
->flags
& I40E_FLAG_PTP
)
2987 val
|= I40E_PFINT_ICR0_ENA_TIMESYNC_MASK
;
2989 wr32(hw
, I40E_PFINT_ICR0_ENA
, val
);
2991 /* SW_ITR_IDX = 0, but don't change INTENA */
2992 wr32(hw
, I40E_PFINT_DYN_CTL0
, I40E_PFINT_DYN_CTL0_SW_ITR_INDX_MASK
|
2993 I40E_PFINT_DYN_CTL0_INTENA_MSK_MASK
);
2995 /* OTHER_ITR_IDX = 0 */
2996 wr32(hw
, I40E_PFINT_STAT_CTL0
, 0);
3000 * i40e_configure_msi_and_legacy - Legacy mode interrupt config in the HW
3001 * @vsi: the VSI being configured
3003 static void i40e_configure_msi_and_legacy(struct i40e_vsi
*vsi
)
3005 struct i40e_q_vector
*q_vector
= vsi
->q_vectors
[0];
3006 struct i40e_pf
*pf
= vsi
->back
;
3007 struct i40e_hw
*hw
= &pf
->hw
;
3010 /* set the ITR configuration */
3011 q_vector
->rx
.itr
= ITR_TO_REG(vsi
->rx_itr_setting
);
3012 q_vector
->rx
.latency_range
= I40E_LOW_LATENCY
;
3013 wr32(hw
, I40E_PFINT_ITR0(I40E_RX_ITR
), q_vector
->rx
.itr
);
3014 q_vector
->tx
.itr
= ITR_TO_REG(vsi
->tx_itr_setting
);
3015 q_vector
->tx
.latency_range
= I40E_LOW_LATENCY
;
3016 wr32(hw
, I40E_PFINT_ITR0(I40E_TX_ITR
), q_vector
->tx
.itr
);
3018 i40e_enable_misc_int_causes(pf
);
3020 /* FIRSTQ_INDX = 0, FIRSTQ_TYPE = 0 (rx) */
3021 wr32(hw
, I40E_PFINT_LNKLST0
, 0);
3023 /* Associate the queue pair to the vector and enable the queue int */
3024 val
= I40E_QINT_RQCTL_CAUSE_ENA_MASK
|
3025 (I40E_RX_ITR
<< I40E_QINT_RQCTL_ITR_INDX_SHIFT
) |
3026 (I40E_QUEUE_TYPE_TX
<< I40E_QINT_TQCTL_NEXTQ_TYPE_SHIFT
);
3028 wr32(hw
, I40E_QINT_RQCTL(0), val
);
3030 val
= I40E_QINT_TQCTL_CAUSE_ENA_MASK
|
3031 (I40E_TX_ITR
<< I40E_QINT_TQCTL_ITR_INDX_SHIFT
) |
3032 (I40E_QUEUE_END_OF_LIST
<< I40E_QINT_TQCTL_NEXTQ_INDX_SHIFT
);
3034 wr32(hw
, I40E_QINT_TQCTL(0), val
);
3039 * i40e_irq_dynamic_disable_icr0 - Disable default interrupt generation for icr0
3040 * @pf: board private structure
3042 void i40e_irq_dynamic_disable_icr0(struct i40e_pf
*pf
)
3044 struct i40e_hw
*hw
= &pf
->hw
;
3046 wr32(hw
, I40E_PFINT_DYN_CTL0
,
3047 I40E_ITR_NONE
<< I40E_PFINT_DYN_CTLN_ITR_INDX_SHIFT
);
3052 * i40e_irq_dynamic_enable_icr0 - Enable default interrupt generation for icr0
3053 * @pf: board private structure
3055 void i40e_irq_dynamic_enable_icr0(struct i40e_pf
*pf
)
3057 struct i40e_hw
*hw
= &pf
->hw
;
3060 val
= I40E_PFINT_DYN_CTL0_INTENA_MASK
|
3061 I40E_PFINT_DYN_CTL0_CLEARPBA_MASK
|
3062 (I40E_ITR_NONE
<< I40E_PFINT_DYN_CTL0_ITR_INDX_SHIFT
);
3064 wr32(hw
, I40E_PFINT_DYN_CTL0
, val
);
3069 * i40e_irq_dynamic_enable - Enable default interrupt generation settings
3070 * @vsi: pointer to a vsi
3071 * @vector: enable a particular Hw Interrupt vector, without base_vector
3073 void i40e_irq_dynamic_enable(struct i40e_vsi
*vsi
, int vector
)
3075 struct i40e_pf
*pf
= vsi
->back
;
3076 struct i40e_hw
*hw
= &pf
->hw
;
3079 val
= I40E_PFINT_DYN_CTLN_INTENA_MASK
|
3080 I40E_PFINT_DYN_CTLN_CLEARPBA_MASK
|
3081 (I40E_ITR_NONE
<< I40E_PFINT_DYN_CTLN_ITR_INDX_SHIFT
);
3082 wr32(hw
, I40E_PFINT_DYN_CTLN(vector
+ vsi
->base_vector
- 1), val
);
3083 /* skip the flush */
3087 * i40e_irq_dynamic_disable - Disable default interrupt generation settings
3088 * @vsi: pointer to a vsi
3089 * @vector: disable a particular Hw Interrupt vector
3091 void i40e_irq_dynamic_disable(struct i40e_vsi
*vsi
, int vector
)
3093 struct i40e_pf
*pf
= vsi
->back
;
3094 struct i40e_hw
*hw
= &pf
->hw
;
3097 val
= I40E_ITR_NONE
<< I40E_PFINT_DYN_CTLN_ITR_INDX_SHIFT
;
3098 wr32(hw
, I40E_PFINT_DYN_CTLN(vector
- 1), val
);
3103 * i40e_msix_clean_rings - MSIX mode Interrupt Handler
3104 * @irq: interrupt number
3105 * @data: pointer to a q_vector
3107 static irqreturn_t
i40e_msix_clean_rings(int irq
, void *data
)
3109 struct i40e_q_vector
*q_vector
= data
;
3111 if (!q_vector
->tx
.ring
&& !q_vector
->rx
.ring
)
3114 napi_schedule(&q_vector
->napi
);
3120 * i40e_vsi_request_irq_msix - Initialize MSI-X interrupts
3121 * @vsi: the VSI being configured
3122 * @basename: name for the vector
3124 * Allocates MSI-X vectors and requests interrupts from the kernel.
3126 static int i40e_vsi_request_irq_msix(struct i40e_vsi
*vsi
, char *basename
)
3128 int q_vectors
= vsi
->num_q_vectors
;
3129 struct i40e_pf
*pf
= vsi
->back
;
3130 int base
= vsi
->base_vector
;
3135 for (vector
= 0; vector
< q_vectors
; vector
++) {
3136 struct i40e_q_vector
*q_vector
= vsi
->q_vectors
[vector
];
3138 if (q_vector
->tx
.ring
&& q_vector
->rx
.ring
) {
3139 snprintf(q_vector
->name
, sizeof(q_vector
->name
) - 1,
3140 "%s-%s-%d", basename
, "TxRx", rx_int_idx
++);
3142 } else if (q_vector
->rx
.ring
) {
3143 snprintf(q_vector
->name
, sizeof(q_vector
->name
) - 1,
3144 "%s-%s-%d", basename
, "rx", rx_int_idx
++);
3145 } else if (q_vector
->tx
.ring
) {
3146 snprintf(q_vector
->name
, sizeof(q_vector
->name
) - 1,
3147 "%s-%s-%d", basename
, "tx", tx_int_idx
++);
3149 /* skip this unused q_vector */
3152 err
= request_irq(pf
->msix_entries
[base
+ vector
].vector
,
3158 dev_info(&pf
->pdev
->dev
,
3159 "MSIX request_irq failed, error: %d\n", err
);
3160 goto free_queue_irqs
;
3162 /* assign the mask for this irq */
3163 irq_set_affinity_hint(pf
->msix_entries
[base
+ vector
].vector
,
3164 &q_vector
->affinity_mask
);
3167 vsi
->irqs_ready
= true;
3173 irq_set_affinity_hint(pf
->msix_entries
[base
+ vector
].vector
,
3175 free_irq(pf
->msix_entries
[base
+ vector
].vector
,
3176 &(vsi
->q_vectors
[vector
]));
3182 * i40e_vsi_disable_irq - Mask off queue interrupt generation on the VSI
3183 * @vsi: the VSI being un-configured
3185 static void i40e_vsi_disable_irq(struct i40e_vsi
*vsi
)
3187 struct i40e_pf
*pf
= vsi
->back
;
3188 struct i40e_hw
*hw
= &pf
->hw
;
3189 int base
= vsi
->base_vector
;
3192 for (i
= 0; i
< vsi
->num_queue_pairs
; i
++) {
3193 wr32(hw
, I40E_QINT_TQCTL(vsi
->tx_rings
[i
]->reg_idx
), 0);
3194 wr32(hw
, I40E_QINT_RQCTL(vsi
->rx_rings
[i
]->reg_idx
), 0);
3197 if (pf
->flags
& I40E_FLAG_MSIX_ENABLED
) {
3198 for (i
= vsi
->base_vector
;
3199 i
< (vsi
->num_q_vectors
+ vsi
->base_vector
); i
++)
3200 wr32(hw
, I40E_PFINT_DYN_CTLN(i
- 1), 0);
3203 for (i
= 0; i
< vsi
->num_q_vectors
; i
++)
3204 synchronize_irq(pf
->msix_entries
[i
+ base
].vector
);
3206 /* Legacy and MSI mode - this stops all interrupt handling */
3207 wr32(hw
, I40E_PFINT_ICR0_ENA
, 0);
3208 wr32(hw
, I40E_PFINT_DYN_CTL0
, 0);
3210 synchronize_irq(pf
->pdev
->irq
);
3215 * i40e_vsi_enable_irq - Enable IRQ for the given VSI
3216 * @vsi: the VSI being configured
3218 static int i40e_vsi_enable_irq(struct i40e_vsi
*vsi
)
3220 struct i40e_pf
*pf
= vsi
->back
;
3223 if (pf
->flags
& I40E_FLAG_MSIX_ENABLED
) {
3224 for (i
= 0; i
< vsi
->num_q_vectors
; i
++)
3225 i40e_irq_dynamic_enable(vsi
, i
);
3227 i40e_irq_dynamic_enable_icr0(pf
);
3230 i40e_flush(&pf
->hw
);
3235 * i40e_stop_misc_vector - Stop the vector that handles non-queue events
3236 * @pf: board private structure
3238 static void i40e_stop_misc_vector(struct i40e_pf
*pf
)
3241 wr32(&pf
->hw
, I40E_PFINT_ICR0_ENA
, 0);
3242 i40e_flush(&pf
->hw
);
3246 * i40e_intr - MSI/Legacy and non-queue interrupt handler
3247 * @irq: interrupt number
3248 * @data: pointer to a q_vector
3250 * This is the handler used for all MSI/Legacy interrupts, and deals
3251 * with both queue and non-queue interrupts. This is also used in
3252 * MSIX mode to handle the non-queue interrupts.
3254 static irqreturn_t
i40e_intr(int irq
, void *data
)
3256 struct i40e_pf
*pf
= (struct i40e_pf
*)data
;
3257 struct i40e_hw
*hw
= &pf
->hw
;
3258 irqreturn_t ret
= IRQ_NONE
;
3259 u32 icr0
, icr0_remaining
;
3262 icr0
= rd32(hw
, I40E_PFINT_ICR0
);
3263 ena_mask
= rd32(hw
, I40E_PFINT_ICR0_ENA
);
3265 /* if sharing a legacy IRQ, we might get called w/o an intr pending */
3266 if ((icr0
& I40E_PFINT_ICR0_INTEVENT_MASK
) == 0)
3269 /* if interrupt but no bits showing, must be SWINT */
3270 if (((icr0
& ~I40E_PFINT_ICR0_INTEVENT_MASK
) == 0) ||
3271 (icr0
& I40E_PFINT_ICR0_SWINT_MASK
))
3274 if ((pf
->flags
& I40E_FLAG_IWARP_ENABLED
) &&
3275 (ena_mask
& I40E_PFINT_ICR0_ENA_PE_CRITERR_MASK
)) {
3276 ena_mask
&= ~I40E_PFINT_ICR0_ENA_PE_CRITERR_MASK
;
3277 icr0
&= ~I40E_PFINT_ICR0_ENA_PE_CRITERR_MASK
;
3278 dev_info(&pf
->pdev
->dev
, "cleared PE_CRITERR\n");
3281 /* only q0 is used in MSI/Legacy mode, and none are used in MSIX */
3282 if (icr0
& I40E_PFINT_ICR0_QUEUE_0_MASK
) {
3284 /* temporarily disable queue cause for NAPI processing */
3285 u32 qval
= rd32(hw
, I40E_QINT_RQCTL(0));
3286 qval
&= ~I40E_QINT_RQCTL_CAUSE_ENA_MASK
;
3287 wr32(hw
, I40E_QINT_RQCTL(0), qval
);
3289 qval
= rd32(hw
, I40E_QINT_TQCTL(0));
3290 qval
&= ~I40E_QINT_TQCTL_CAUSE_ENA_MASK
;
3291 wr32(hw
, I40E_QINT_TQCTL(0), qval
);
3293 if (!test_bit(__I40E_DOWN
, &pf
->state
))
3294 napi_schedule(&pf
->vsi
[pf
->lan_vsi
]->q_vectors
[0]->napi
);
3297 if (icr0
& I40E_PFINT_ICR0_ADMINQ_MASK
) {
3298 ena_mask
&= ~I40E_PFINT_ICR0_ENA_ADMINQ_MASK
;
3299 set_bit(__I40E_ADMINQ_EVENT_PENDING
, &pf
->state
);
3302 if (icr0
& I40E_PFINT_ICR0_MAL_DETECT_MASK
) {
3303 ena_mask
&= ~I40E_PFINT_ICR0_ENA_MAL_DETECT_MASK
;
3304 set_bit(__I40E_MDD_EVENT_PENDING
, &pf
->state
);
3307 if (icr0
& I40E_PFINT_ICR0_VFLR_MASK
) {
3308 ena_mask
&= ~I40E_PFINT_ICR0_ENA_VFLR_MASK
;
3309 set_bit(__I40E_VFLR_EVENT_PENDING
, &pf
->state
);
3312 if (icr0
& I40E_PFINT_ICR0_GRST_MASK
) {
3313 if (!test_bit(__I40E_RESET_RECOVERY_PENDING
, &pf
->state
))
3314 set_bit(__I40E_RESET_INTR_RECEIVED
, &pf
->state
);
3315 ena_mask
&= ~I40E_PFINT_ICR0_ENA_GRST_MASK
;
3316 val
= rd32(hw
, I40E_GLGEN_RSTAT
);
3317 val
= (val
& I40E_GLGEN_RSTAT_RESET_TYPE_MASK
)
3318 >> I40E_GLGEN_RSTAT_RESET_TYPE_SHIFT
;
3319 if (val
== I40E_RESET_CORER
) {
3321 } else if (val
== I40E_RESET_GLOBR
) {
3323 } else if (val
== I40E_RESET_EMPR
) {
3325 set_bit(__I40E_EMP_RESET_INTR_RECEIVED
, &pf
->state
);
3329 if (icr0
& I40E_PFINT_ICR0_HMC_ERR_MASK
) {
3330 icr0
&= ~I40E_PFINT_ICR0_HMC_ERR_MASK
;
3331 dev_info(&pf
->pdev
->dev
, "HMC error interrupt\n");
3332 dev_info(&pf
->pdev
->dev
, "HMC error info 0x%x, HMC error data 0x%x\n",
3333 rd32(hw
, I40E_PFHMC_ERRORINFO
),
3334 rd32(hw
, I40E_PFHMC_ERRORDATA
));
3337 if (icr0
& I40E_PFINT_ICR0_TIMESYNC_MASK
) {
3338 u32 prttsyn_stat
= rd32(hw
, I40E_PRTTSYN_STAT_0
);
3340 if (prttsyn_stat
& I40E_PRTTSYN_STAT_0_TXTIME_MASK
) {
3341 icr0
&= ~I40E_PFINT_ICR0_ENA_TIMESYNC_MASK
;
3342 i40e_ptp_tx_hwtstamp(pf
);
3346 /* If a critical error is pending we have no choice but to reset the
3348 * Report and mask out any remaining unexpected interrupts.
3350 icr0_remaining
= icr0
& ena_mask
;
3351 if (icr0_remaining
) {
3352 dev_info(&pf
->pdev
->dev
, "unhandled interrupt icr0=0x%08x\n",
3354 if ((icr0_remaining
& I40E_PFINT_ICR0_PE_CRITERR_MASK
) ||
3355 (icr0_remaining
& I40E_PFINT_ICR0_PCI_EXCEPTION_MASK
) ||
3356 (icr0_remaining
& I40E_PFINT_ICR0_ECC_ERR_MASK
)) {
3357 dev_info(&pf
->pdev
->dev
, "device will be reset\n");
3358 set_bit(__I40E_PF_RESET_REQUESTED
, &pf
->state
);
3359 i40e_service_event_schedule(pf
);
3361 ena_mask
&= ~icr0_remaining
;
3366 /* re-enable interrupt causes */
3367 wr32(hw
, I40E_PFINT_ICR0_ENA
, ena_mask
);
3368 if (!test_bit(__I40E_DOWN
, &pf
->state
)) {
3369 i40e_service_event_schedule(pf
);
3370 i40e_irq_dynamic_enable_icr0(pf
);
3377 * i40e_clean_fdir_tx_irq - Reclaim resources after transmit completes
3378 * @tx_ring: tx ring to clean
3379 * @budget: how many cleans we're allowed
3381 * Returns true if there's any budget left (e.g. the clean is finished)
3383 static bool i40e_clean_fdir_tx_irq(struct i40e_ring
*tx_ring
, int budget
)
3385 struct i40e_vsi
*vsi
= tx_ring
->vsi
;
3386 u16 i
= tx_ring
->next_to_clean
;
3387 struct i40e_tx_buffer
*tx_buf
;
3388 struct i40e_tx_desc
*tx_desc
;
3390 tx_buf
= &tx_ring
->tx_bi
[i
];
3391 tx_desc
= I40E_TX_DESC(tx_ring
, i
);
3392 i
-= tx_ring
->count
;
3395 struct i40e_tx_desc
*eop_desc
= tx_buf
->next_to_watch
;
3397 /* if next_to_watch is not set then there is no work pending */
3401 /* prevent any other reads prior to eop_desc */
3402 read_barrier_depends();
3404 /* if the descriptor isn't done, no work yet to do */
3405 if (!(eop_desc
->cmd_type_offset_bsz
&
3406 cpu_to_le64(I40E_TX_DESC_DTYPE_DESC_DONE
)))
3409 /* clear next_to_watch to prevent false hangs */
3410 tx_buf
->next_to_watch
= NULL
;
3412 tx_desc
->buffer_addr
= 0;
3413 tx_desc
->cmd_type_offset_bsz
= 0;
3414 /* move past filter desc */
3419 i
-= tx_ring
->count
;
3420 tx_buf
= tx_ring
->tx_bi
;
3421 tx_desc
= I40E_TX_DESC(tx_ring
, 0);
3423 /* unmap skb header data */
3424 dma_unmap_single(tx_ring
->dev
,
3425 dma_unmap_addr(tx_buf
, dma
),
3426 dma_unmap_len(tx_buf
, len
),
3428 if (tx_buf
->tx_flags
& I40E_TX_FLAGS_FD_SB
)
3429 kfree(tx_buf
->raw_buf
);
3431 tx_buf
->raw_buf
= NULL
;
3432 tx_buf
->tx_flags
= 0;
3433 tx_buf
->next_to_watch
= NULL
;
3434 dma_unmap_len_set(tx_buf
, len
, 0);
3435 tx_desc
->buffer_addr
= 0;
3436 tx_desc
->cmd_type_offset_bsz
= 0;
3438 /* move us past the eop_desc for start of next FD desc */
3443 i
-= tx_ring
->count
;
3444 tx_buf
= tx_ring
->tx_bi
;
3445 tx_desc
= I40E_TX_DESC(tx_ring
, 0);
3448 /* update budget accounting */
3450 } while (likely(budget
));
3452 i
+= tx_ring
->count
;
3453 tx_ring
->next_to_clean
= i
;
3455 if (vsi
->back
->flags
& I40E_FLAG_MSIX_ENABLED
) {
3456 i40e_irq_dynamic_enable(vsi
, tx_ring
->q_vector
->v_idx
);
3462 * i40e_fdir_clean_ring - Interrupt Handler for FDIR SB ring
3463 * @irq: interrupt number
3464 * @data: pointer to a q_vector
3466 static irqreturn_t
i40e_fdir_clean_ring(int irq
, void *data
)
3468 struct i40e_q_vector
*q_vector
= data
;
3469 struct i40e_vsi
*vsi
;
3471 if (!q_vector
->tx
.ring
)
3474 vsi
= q_vector
->tx
.ring
->vsi
;
3475 i40e_clean_fdir_tx_irq(q_vector
->tx
.ring
, vsi
->work_limit
);
3481 * i40e_map_vector_to_qp - Assigns the queue pair to the vector
3482 * @vsi: the VSI being configured
3483 * @v_idx: vector index
3484 * @qp_idx: queue pair index
3486 static void i40e_map_vector_to_qp(struct i40e_vsi
*vsi
, int v_idx
, int qp_idx
)
3488 struct i40e_q_vector
*q_vector
= vsi
->q_vectors
[v_idx
];
3489 struct i40e_ring
*tx_ring
= vsi
->tx_rings
[qp_idx
];
3490 struct i40e_ring
*rx_ring
= vsi
->rx_rings
[qp_idx
];
3492 tx_ring
->q_vector
= q_vector
;
3493 tx_ring
->next
= q_vector
->tx
.ring
;
3494 q_vector
->tx
.ring
= tx_ring
;
3495 q_vector
->tx
.count
++;
3497 rx_ring
->q_vector
= q_vector
;
3498 rx_ring
->next
= q_vector
->rx
.ring
;
3499 q_vector
->rx
.ring
= rx_ring
;
3500 q_vector
->rx
.count
++;
3504 * i40e_vsi_map_rings_to_vectors - Maps descriptor rings to vectors
3505 * @vsi: the VSI being configured
3507 * This function maps descriptor rings to the queue-specific vectors
3508 * we were allotted through the MSI-X enabling code. Ideally, we'd have
3509 * one vector per queue pair, but on a constrained vector budget, we
3510 * group the queue pairs as "efficiently" as possible.
3512 static void i40e_vsi_map_rings_to_vectors(struct i40e_vsi
*vsi
)
3514 int qp_remaining
= vsi
->num_queue_pairs
;
3515 int q_vectors
= vsi
->num_q_vectors
;
3520 /* If we don't have enough vectors for a 1-to-1 mapping, we'll have to
3521 * group them so there are multiple queues per vector.
3522 * It is also important to go through all the vectors available to be
3523 * sure that if we don't use all the vectors, that the remaining vectors
3524 * are cleared. This is especially important when decreasing the
3525 * number of queues in use.
3527 for (; v_start
< q_vectors
; v_start
++) {
3528 struct i40e_q_vector
*q_vector
= vsi
->q_vectors
[v_start
];
3530 num_ringpairs
= DIV_ROUND_UP(qp_remaining
, q_vectors
- v_start
);
3532 q_vector
->num_ringpairs
= num_ringpairs
;
3534 q_vector
->rx
.count
= 0;
3535 q_vector
->tx
.count
= 0;
3536 q_vector
->rx
.ring
= NULL
;
3537 q_vector
->tx
.ring
= NULL
;
3539 while (num_ringpairs
--) {
3540 i40e_map_vector_to_qp(vsi
, v_start
, qp_idx
);
3548 * i40e_vsi_request_irq - Request IRQ from the OS
3549 * @vsi: the VSI being configured
3550 * @basename: name for the vector
3552 static int i40e_vsi_request_irq(struct i40e_vsi
*vsi
, char *basename
)
3554 struct i40e_pf
*pf
= vsi
->back
;
3557 if (pf
->flags
& I40E_FLAG_MSIX_ENABLED
)
3558 err
= i40e_vsi_request_irq_msix(vsi
, basename
);
3559 else if (pf
->flags
& I40E_FLAG_MSI_ENABLED
)
3560 err
= request_irq(pf
->pdev
->irq
, i40e_intr
, 0,
3563 err
= request_irq(pf
->pdev
->irq
, i40e_intr
, IRQF_SHARED
,
3567 dev_info(&pf
->pdev
->dev
, "request_irq failed, Error %d\n", err
);
3572 #ifdef CONFIG_NET_POLL_CONTROLLER
3574 * i40e_netpoll - A Polling 'interrupt'handler
3575 * @netdev: network interface device structure
3577 * This is used by netconsole to send skbs without having to re-enable
3578 * interrupts. It's not called while the normal interrupt routine is executing.
3581 void i40e_netpoll(struct net_device
*netdev
)
3583 static void i40e_netpoll(struct net_device
*netdev
)
3586 struct i40e_netdev_priv
*np
= netdev_priv(netdev
);
3587 struct i40e_vsi
*vsi
= np
->vsi
;
3588 struct i40e_pf
*pf
= vsi
->back
;
3591 /* if interface is down do nothing */
3592 if (test_bit(__I40E_DOWN
, &vsi
->state
))
3595 pf
->flags
|= I40E_FLAG_IN_NETPOLL
;
3596 if (pf
->flags
& I40E_FLAG_MSIX_ENABLED
) {
3597 for (i
= 0; i
< vsi
->num_q_vectors
; i
++)
3598 i40e_msix_clean_rings(0, vsi
->q_vectors
[i
]);
3600 i40e_intr(pf
->pdev
->irq
, netdev
);
3602 pf
->flags
&= ~I40E_FLAG_IN_NETPOLL
;
3607 * i40e_pf_txq_wait - Wait for a PF's Tx queue to be enabled or disabled
3608 * @pf: the PF being configured
3609 * @pf_q: the PF queue
3610 * @enable: enable or disable state of the queue
3612 * This routine will wait for the given Tx queue of the PF to reach the
3613 * enabled or disabled state.
3614 * Returns -ETIMEDOUT in case of failing to reach the requested state after
3615 * multiple retries; else will return 0 in case of success.
3617 static int i40e_pf_txq_wait(struct i40e_pf
*pf
, int pf_q
, bool enable
)
3622 for (i
= 0; i
< I40E_QUEUE_WAIT_RETRY_LIMIT
; i
++) {
3623 tx_reg
= rd32(&pf
->hw
, I40E_QTX_ENA(pf_q
));
3624 if (enable
== !!(tx_reg
& I40E_QTX_ENA_QENA_STAT_MASK
))
3627 usleep_range(10, 20);
3629 if (i
>= I40E_QUEUE_WAIT_RETRY_LIMIT
)
3636 * i40e_vsi_control_tx - Start or stop a VSI's rings
3637 * @vsi: the VSI being configured
3638 * @enable: start or stop the rings
3640 static int i40e_vsi_control_tx(struct i40e_vsi
*vsi
, bool enable
)
3642 struct i40e_pf
*pf
= vsi
->back
;
3643 struct i40e_hw
*hw
= &pf
->hw
;
3644 int i
, j
, pf_q
, ret
= 0;
3647 pf_q
= vsi
->base_queue
;
3648 for (i
= 0; i
< vsi
->num_queue_pairs
; i
++, pf_q
++) {
3650 /* warn the TX unit of coming changes */
3651 i40e_pre_tx_queue_cfg(&pf
->hw
, pf_q
, enable
);
3653 usleep_range(10, 20);
3655 for (j
= 0; j
< 50; j
++) {
3656 tx_reg
= rd32(hw
, I40E_QTX_ENA(pf_q
));
3657 if (((tx_reg
>> I40E_QTX_ENA_QENA_REQ_SHIFT
) & 1) ==
3658 ((tx_reg
>> I40E_QTX_ENA_QENA_STAT_SHIFT
) & 1))
3660 usleep_range(1000, 2000);
3662 /* Skip if the queue is already in the requested state */
3663 if (enable
== !!(tx_reg
& I40E_QTX_ENA_QENA_STAT_MASK
))
3666 /* turn on/off the queue */
3668 wr32(hw
, I40E_QTX_HEAD(pf_q
), 0);
3669 tx_reg
|= I40E_QTX_ENA_QENA_REQ_MASK
;
3671 tx_reg
&= ~I40E_QTX_ENA_QENA_REQ_MASK
;
3674 wr32(hw
, I40E_QTX_ENA(pf_q
), tx_reg
);
3675 /* No waiting for the Tx queue to disable */
3676 if (!enable
&& test_bit(__I40E_PORT_TX_SUSPENDED
, &pf
->state
))
3679 /* wait for the change to finish */
3680 ret
= i40e_pf_txq_wait(pf
, pf_q
, enable
);
3682 dev_info(&pf
->pdev
->dev
,
3683 "VSI seid %d Tx ring %d %sable timeout\n",
3684 vsi
->seid
, pf_q
, (enable
? "en" : "dis"));
3689 if (hw
->revision_id
== 0)
3695 * i40e_pf_rxq_wait - Wait for a PF's Rx queue to be enabled or disabled
3696 * @pf: the PF being configured
3697 * @pf_q: the PF queue
3698 * @enable: enable or disable state of the queue
3700 * This routine will wait for the given Rx queue of the PF to reach the
3701 * enabled or disabled state.
3702 * Returns -ETIMEDOUT in case of failing to reach the requested state after
3703 * multiple retries; else will return 0 in case of success.
3705 static int i40e_pf_rxq_wait(struct i40e_pf
*pf
, int pf_q
, bool enable
)
3710 for (i
= 0; i
< I40E_QUEUE_WAIT_RETRY_LIMIT
; i
++) {
3711 rx_reg
= rd32(&pf
->hw
, I40E_QRX_ENA(pf_q
));
3712 if (enable
== !!(rx_reg
& I40E_QRX_ENA_QENA_STAT_MASK
))
3715 usleep_range(10, 20);
3717 if (i
>= I40E_QUEUE_WAIT_RETRY_LIMIT
)
3724 * i40e_vsi_control_rx - Start or stop a VSI's rings
3725 * @vsi: the VSI being configured
3726 * @enable: start or stop the rings
3728 static int i40e_vsi_control_rx(struct i40e_vsi
*vsi
, bool enable
)
3730 struct i40e_pf
*pf
= vsi
->back
;
3731 struct i40e_hw
*hw
= &pf
->hw
;
3732 int i
, j
, pf_q
, ret
= 0;
3735 pf_q
= vsi
->base_queue
;
3736 for (i
= 0; i
< vsi
->num_queue_pairs
; i
++, pf_q
++) {
3737 for (j
= 0; j
< 50; j
++) {
3738 rx_reg
= rd32(hw
, I40E_QRX_ENA(pf_q
));
3739 if (((rx_reg
>> I40E_QRX_ENA_QENA_REQ_SHIFT
) & 1) ==
3740 ((rx_reg
>> I40E_QRX_ENA_QENA_STAT_SHIFT
) & 1))
3742 usleep_range(1000, 2000);
3745 /* Skip if the queue is already in the requested state */
3746 if (enable
== !!(rx_reg
& I40E_QRX_ENA_QENA_STAT_MASK
))
3749 /* turn on/off the queue */
3751 rx_reg
|= I40E_QRX_ENA_QENA_REQ_MASK
;
3753 rx_reg
&= ~I40E_QRX_ENA_QENA_REQ_MASK
;
3754 wr32(hw
, I40E_QRX_ENA(pf_q
), rx_reg
);
3756 /* wait for the change to finish */
3757 ret
= i40e_pf_rxq_wait(pf
, pf_q
, enable
);
3759 dev_info(&pf
->pdev
->dev
,
3760 "VSI seid %d Rx ring %d %sable timeout\n",
3761 vsi
->seid
, pf_q
, (enable
? "en" : "dis"));
3770 * i40e_vsi_control_rings - Start or stop a VSI's rings
3771 * @vsi: the VSI being configured
3772 * @enable: start or stop the rings
3774 int i40e_vsi_control_rings(struct i40e_vsi
*vsi
, bool request
)
3778 /* do rx first for enable and last for disable */
3780 ret
= i40e_vsi_control_rx(vsi
, request
);
3783 ret
= i40e_vsi_control_tx(vsi
, request
);
3785 /* Ignore return value, we need to shutdown whatever we can */
3786 i40e_vsi_control_tx(vsi
, request
);
3787 i40e_vsi_control_rx(vsi
, request
);
3794 * i40e_vsi_free_irq - Free the irq association with the OS
3795 * @vsi: the VSI being configured
3797 static void i40e_vsi_free_irq(struct i40e_vsi
*vsi
)
3799 struct i40e_pf
*pf
= vsi
->back
;
3800 struct i40e_hw
*hw
= &pf
->hw
;
3801 int base
= vsi
->base_vector
;
3805 if (pf
->flags
& I40E_FLAG_MSIX_ENABLED
) {
3806 if (!vsi
->q_vectors
)
3809 if (!vsi
->irqs_ready
)
3812 vsi
->irqs_ready
= false;
3813 for (i
= 0; i
< vsi
->num_q_vectors
; i
++) {
3814 u16 vector
= i
+ base
;
3816 /* free only the irqs that were actually requested */
3817 if (!vsi
->q_vectors
[i
] ||
3818 !vsi
->q_vectors
[i
]->num_ringpairs
)
3821 /* clear the affinity_mask in the IRQ descriptor */
3822 irq_set_affinity_hint(pf
->msix_entries
[vector
].vector
,
3824 free_irq(pf
->msix_entries
[vector
].vector
,
3827 /* Tear down the interrupt queue link list
3829 * We know that they come in pairs and always
3830 * the Rx first, then the Tx. To clear the
3831 * link list, stick the EOL value into the
3832 * next_q field of the registers.
3834 val
= rd32(hw
, I40E_PFINT_LNKLSTN(vector
- 1));
3835 qp
= (val
& I40E_PFINT_LNKLSTN_FIRSTQ_INDX_MASK
)
3836 >> I40E_PFINT_LNKLSTN_FIRSTQ_INDX_SHIFT
;
3837 val
|= I40E_QUEUE_END_OF_LIST
3838 << I40E_PFINT_LNKLSTN_FIRSTQ_INDX_SHIFT
;
3839 wr32(hw
, I40E_PFINT_LNKLSTN(vector
- 1), val
);
3841 while (qp
!= I40E_QUEUE_END_OF_LIST
) {
3844 val
= rd32(hw
, I40E_QINT_RQCTL(qp
));
3846 val
&= ~(I40E_QINT_RQCTL_MSIX_INDX_MASK
|
3847 I40E_QINT_RQCTL_MSIX0_INDX_MASK
|
3848 I40E_QINT_RQCTL_CAUSE_ENA_MASK
|
3849 I40E_QINT_RQCTL_INTEVENT_MASK
);
3851 val
|= (I40E_QINT_RQCTL_ITR_INDX_MASK
|
3852 I40E_QINT_RQCTL_NEXTQ_INDX_MASK
);
3854 wr32(hw
, I40E_QINT_RQCTL(qp
), val
);
3856 val
= rd32(hw
, I40E_QINT_TQCTL(qp
));
3858 next
= (val
& I40E_QINT_TQCTL_NEXTQ_INDX_MASK
)
3859 >> I40E_QINT_TQCTL_NEXTQ_INDX_SHIFT
;
3861 val
&= ~(I40E_QINT_TQCTL_MSIX_INDX_MASK
|
3862 I40E_QINT_TQCTL_MSIX0_INDX_MASK
|
3863 I40E_QINT_TQCTL_CAUSE_ENA_MASK
|
3864 I40E_QINT_TQCTL_INTEVENT_MASK
);
3866 val
|= (I40E_QINT_TQCTL_ITR_INDX_MASK
|
3867 I40E_QINT_TQCTL_NEXTQ_INDX_MASK
);
3869 wr32(hw
, I40E_QINT_TQCTL(qp
), val
);
3874 free_irq(pf
->pdev
->irq
, pf
);
3876 val
= rd32(hw
, I40E_PFINT_LNKLST0
);
3877 qp
= (val
& I40E_PFINT_LNKLSTN_FIRSTQ_INDX_MASK
)
3878 >> I40E_PFINT_LNKLSTN_FIRSTQ_INDX_SHIFT
;
3879 val
|= I40E_QUEUE_END_OF_LIST
3880 << I40E_PFINT_LNKLST0_FIRSTQ_INDX_SHIFT
;
3881 wr32(hw
, I40E_PFINT_LNKLST0
, val
);
3883 val
= rd32(hw
, I40E_QINT_RQCTL(qp
));
3884 val
&= ~(I40E_QINT_RQCTL_MSIX_INDX_MASK
|
3885 I40E_QINT_RQCTL_MSIX0_INDX_MASK
|
3886 I40E_QINT_RQCTL_CAUSE_ENA_MASK
|
3887 I40E_QINT_RQCTL_INTEVENT_MASK
);
3889 val
|= (I40E_QINT_RQCTL_ITR_INDX_MASK
|
3890 I40E_QINT_RQCTL_NEXTQ_INDX_MASK
);
3892 wr32(hw
, I40E_QINT_RQCTL(qp
), val
);
3894 val
= rd32(hw
, I40E_QINT_TQCTL(qp
));
3896 val
&= ~(I40E_QINT_TQCTL_MSIX_INDX_MASK
|
3897 I40E_QINT_TQCTL_MSIX0_INDX_MASK
|
3898 I40E_QINT_TQCTL_CAUSE_ENA_MASK
|
3899 I40E_QINT_TQCTL_INTEVENT_MASK
);
3901 val
|= (I40E_QINT_TQCTL_ITR_INDX_MASK
|
3902 I40E_QINT_TQCTL_NEXTQ_INDX_MASK
);
3904 wr32(hw
, I40E_QINT_TQCTL(qp
), val
);
3909 * i40e_free_q_vector - Free memory allocated for specific interrupt vector
3910 * @vsi: the VSI being configured
3911 * @v_idx: Index of vector to be freed
3913 * This function frees the memory allocated to the q_vector. In addition if
3914 * NAPI is enabled it will delete any references to the NAPI struct prior
3915 * to freeing the q_vector.
3917 static void i40e_free_q_vector(struct i40e_vsi
*vsi
, int v_idx
)
3919 struct i40e_q_vector
*q_vector
= vsi
->q_vectors
[v_idx
];
3920 struct i40e_ring
*ring
;
3925 /* disassociate q_vector from rings */
3926 i40e_for_each_ring(ring
, q_vector
->tx
)
3927 ring
->q_vector
= NULL
;
3929 i40e_for_each_ring(ring
, q_vector
->rx
)
3930 ring
->q_vector
= NULL
;
3932 /* only VSI w/ an associated netdev is set up w/ NAPI */
3934 netif_napi_del(&q_vector
->napi
);
3936 vsi
->q_vectors
[v_idx
] = NULL
;
3938 kfree_rcu(q_vector
, rcu
);
3942 * i40e_vsi_free_q_vectors - Free memory allocated for interrupt vectors
3943 * @vsi: the VSI being un-configured
3945 * This frees the memory allocated to the q_vectors and
3946 * deletes references to the NAPI struct.
3948 static void i40e_vsi_free_q_vectors(struct i40e_vsi
*vsi
)
3952 for (v_idx
= 0; v_idx
< vsi
->num_q_vectors
; v_idx
++)
3953 i40e_free_q_vector(vsi
, v_idx
);
3957 * i40e_reset_interrupt_capability - Disable interrupt setup in OS
3958 * @pf: board private structure
3960 static void i40e_reset_interrupt_capability(struct i40e_pf
*pf
)
3962 /* If we're in Legacy mode, the interrupt was cleaned in vsi_close */
3963 if (pf
->flags
& I40E_FLAG_MSIX_ENABLED
) {
3964 pci_disable_msix(pf
->pdev
);
3965 kfree(pf
->msix_entries
);
3966 pf
->msix_entries
= NULL
;
3967 kfree(pf
->irq_pile
);
3968 pf
->irq_pile
= NULL
;
3969 } else if (pf
->flags
& I40E_FLAG_MSI_ENABLED
) {
3970 pci_disable_msi(pf
->pdev
);
3972 pf
->flags
&= ~(I40E_FLAG_MSIX_ENABLED
| I40E_FLAG_MSI_ENABLED
);
3976 * i40e_clear_interrupt_scheme - Clear the current interrupt scheme settings
3977 * @pf: board private structure
3979 * We go through and clear interrupt specific resources and reset the structure
3980 * to pre-load conditions
3982 static void i40e_clear_interrupt_scheme(struct i40e_pf
*pf
)
3986 i40e_stop_misc_vector(pf
);
3987 if (pf
->flags
& I40E_FLAG_MSIX_ENABLED
) {
3988 synchronize_irq(pf
->msix_entries
[0].vector
);
3989 free_irq(pf
->msix_entries
[0].vector
, pf
);
3992 i40e_put_lump(pf
->irq_pile
, 0, I40E_PILE_VALID_BIT
-1);
3993 for (i
= 0; i
< pf
->num_alloc_vsi
; i
++)
3995 i40e_vsi_free_q_vectors(pf
->vsi
[i
]);
3996 i40e_reset_interrupt_capability(pf
);
4000 * i40e_napi_enable_all - Enable NAPI for all q_vectors in the VSI
4001 * @vsi: the VSI being configured
4003 static void i40e_napi_enable_all(struct i40e_vsi
*vsi
)
4010 for (q_idx
= 0; q_idx
< vsi
->num_q_vectors
; q_idx
++)
4011 napi_enable(&vsi
->q_vectors
[q_idx
]->napi
);
4015 * i40e_napi_disable_all - Disable NAPI for all q_vectors in the VSI
4016 * @vsi: the VSI being configured
4018 static void i40e_napi_disable_all(struct i40e_vsi
*vsi
)
4025 for (q_idx
= 0; q_idx
< vsi
->num_q_vectors
; q_idx
++)
4026 napi_disable(&vsi
->q_vectors
[q_idx
]->napi
);
4030 * i40e_vsi_close - Shut down a VSI
4031 * @vsi: the vsi to be quelled
4033 static void i40e_vsi_close(struct i40e_vsi
*vsi
)
4035 if (!test_and_set_bit(__I40E_DOWN
, &vsi
->state
))
4037 i40e_vsi_free_irq(vsi
);
4038 i40e_vsi_free_tx_resources(vsi
);
4039 i40e_vsi_free_rx_resources(vsi
);
4040 vsi
->current_netdev_flags
= 0;
4044 * i40e_quiesce_vsi - Pause a given VSI
4045 * @vsi: the VSI being paused
4047 static void i40e_quiesce_vsi(struct i40e_vsi
*vsi
)
4049 if (test_bit(__I40E_DOWN
, &vsi
->state
))
4052 /* No need to disable FCoE VSI when Tx suspended */
4053 if ((test_bit(__I40E_PORT_TX_SUSPENDED
, &vsi
->back
->state
)) &&
4054 vsi
->type
== I40E_VSI_FCOE
) {
4055 dev_dbg(&vsi
->back
->pdev
->dev
,
4056 "VSI seid %d skipping FCoE VSI disable\n", vsi
->seid
);
4060 set_bit(__I40E_NEEDS_RESTART
, &vsi
->state
);
4061 if (vsi
->netdev
&& netif_running(vsi
->netdev
)) {
4062 vsi
->netdev
->netdev_ops
->ndo_stop(vsi
->netdev
);
4064 i40e_vsi_close(vsi
);
4069 * i40e_unquiesce_vsi - Resume a given VSI
4070 * @vsi: the VSI being resumed
4072 static void i40e_unquiesce_vsi(struct i40e_vsi
*vsi
)
4074 if (!test_bit(__I40E_NEEDS_RESTART
, &vsi
->state
))
4077 clear_bit(__I40E_NEEDS_RESTART
, &vsi
->state
);
4078 if (vsi
->netdev
&& netif_running(vsi
->netdev
))
4079 vsi
->netdev
->netdev_ops
->ndo_open(vsi
->netdev
);
4081 i40e_vsi_open(vsi
); /* this clears the DOWN bit */
4085 * i40e_pf_quiesce_all_vsi - Pause all VSIs on a PF
4088 static void i40e_pf_quiesce_all_vsi(struct i40e_pf
*pf
)
4092 for (v
= 0; v
< pf
->num_alloc_vsi
; v
++) {
4094 i40e_quiesce_vsi(pf
->vsi
[v
]);
4099 * i40e_pf_unquiesce_all_vsi - Resume all VSIs on a PF
4102 static void i40e_pf_unquiesce_all_vsi(struct i40e_pf
*pf
)
4106 for (v
= 0; v
< pf
->num_alloc_vsi
; v
++) {
4108 i40e_unquiesce_vsi(pf
->vsi
[v
]);
4112 #ifdef CONFIG_I40E_DCB
4114 * i40e_vsi_wait_txq_disabled - Wait for VSI's queues to be disabled
4115 * @vsi: the VSI being configured
4117 * This function waits for the given VSI's Tx queues to be disabled.
4119 static int i40e_vsi_wait_txq_disabled(struct i40e_vsi
*vsi
)
4121 struct i40e_pf
*pf
= vsi
->back
;
4124 pf_q
= vsi
->base_queue
;
4125 for (i
= 0; i
< vsi
->num_queue_pairs
; i
++, pf_q
++) {
4126 /* Check and wait for the disable status of the queue */
4127 ret
= i40e_pf_txq_wait(pf
, pf_q
, false);
4129 dev_info(&pf
->pdev
->dev
,
4130 "VSI seid %d Tx ring %d disable timeout\n",
4140 * i40e_pf_wait_txq_disabled - Wait for all queues of PF VSIs to be disabled
4143 * This function waits for the Tx queues to be in disabled state for all the
4144 * VSIs that are managed by this PF.
4146 static int i40e_pf_wait_txq_disabled(struct i40e_pf
*pf
)
4150 for (v
= 0; v
< pf
->hw
.func_caps
.num_vsis
; v
++) {
4151 /* No need to wait for FCoE VSI queues */
4152 if (pf
->vsi
[v
] && pf
->vsi
[v
]->type
!= I40E_VSI_FCOE
) {
4153 ret
= i40e_vsi_wait_txq_disabled(pf
->vsi
[v
]);
4165 * i40e_detect_recover_hung_queue - Function to detect and recover hung_queue
4166 * @q_idx: TX queue number
4167 * @vsi: Pointer to VSI struct
4169 * This function checks specified queue for given VSI. Detects hung condition.
4170 * Sets hung bit since it is two step process. Before next run of service task
4171 * if napi_poll runs, it reset 'hung' bit for respective q_vector. If not,
4172 * hung condition remain unchanged and during subsequent run, this function
4173 * issues SW interrupt to recover from hung condition.
4175 static void i40e_detect_recover_hung_queue(int q_idx
, struct i40e_vsi
*vsi
)
4177 struct i40e_ring
*tx_ring
= NULL
;
4179 u32 head
, val
, tx_pending
;
4184 /* now that we have an index, find the tx_ring struct */
4185 for (i
= 0; i
< vsi
->num_queue_pairs
; i
++) {
4186 if (vsi
->tx_rings
[i
] && vsi
->tx_rings
[i
]->desc
) {
4187 if (q_idx
== vsi
->tx_rings
[i
]->queue_index
) {
4188 tx_ring
= vsi
->tx_rings
[i
];
4197 /* Read interrupt register */
4198 if (pf
->flags
& I40E_FLAG_MSIX_ENABLED
)
4200 I40E_PFINT_DYN_CTLN(tx_ring
->q_vector
->v_idx
+
4201 tx_ring
->vsi
->base_vector
- 1));
4203 val
= rd32(&pf
->hw
, I40E_PFINT_DYN_CTL0
);
4205 head
= i40e_get_head(tx_ring
);
4207 tx_pending
= i40e_get_tx_pending(tx_ring
);
4209 /* Interrupts are disabled and TX pending is non-zero,
4210 * trigger the SW interrupt (don't wait). Worst case
4211 * there will be one extra interrupt which may result
4212 * into not cleaning any queues because queues are cleaned.
4214 if (tx_pending
&& (!(val
& I40E_PFINT_DYN_CTLN_INTENA_MASK
)))
4215 i40e_force_wb(vsi
, tx_ring
->q_vector
);
4219 * i40e_detect_recover_hung - Function to detect and recover hung_queues
4220 * @pf: pointer to PF struct
4222 * LAN VSI has netdev and netdev has TX queues. This function is to check
4223 * each of those TX queues if they are hung, trigger recovery by issuing
4226 static void i40e_detect_recover_hung(struct i40e_pf
*pf
)
4228 struct net_device
*netdev
;
4229 struct i40e_vsi
*vsi
;
4232 /* Only for LAN VSI */
4233 vsi
= pf
->vsi
[pf
->lan_vsi
];
4238 /* Make sure, VSI state is not DOWN/RECOVERY_PENDING */
4239 if (test_bit(__I40E_DOWN
, &vsi
->back
->state
) ||
4240 test_bit(__I40E_RESET_RECOVERY_PENDING
, &vsi
->back
->state
))
4243 /* Make sure type is MAIN VSI */
4244 if (vsi
->type
!= I40E_VSI_MAIN
)
4247 netdev
= vsi
->netdev
;
4251 /* Bail out if netif_carrier is not OK */
4252 if (!netif_carrier_ok(netdev
))
4255 /* Go thru' TX queues for netdev */
4256 for (i
= 0; i
< netdev
->num_tx_queues
; i
++) {
4257 struct netdev_queue
*q
;
4259 q
= netdev_get_tx_queue(netdev
, i
);
4261 i40e_detect_recover_hung_queue(i
, vsi
);
4266 * i40e_get_iscsi_tc_map - Return TC map for iSCSI APP
4267 * @pf: pointer to PF
4269 * Get TC map for ISCSI PF type that will include iSCSI TC
4272 static u8
i40e_get_iscsi_tc_map(struct i40e_pf
*pf
)
4274 struct i40e_dcb_app_priority_table app
;
4275 struct i40e_hw
*hw
= &pf
->hw
;
4276 u8 enabled_tc
= 1; /* TC0 is always enabled */
4278 /* Get the iSCSI APP TLV */
4279 struct i40e_dcbx_config
*dcbcfg
= &hw
->local_dcbx_config
;
4281 for (i
= 0; i
< dcbcfg
->numapps
; i
++) {
4282 app
= dcbcfg
->app
[i
];
4283 if (app
.selector
== I40E_APP_SEL_TCPIP
&&
4284 app
.protocolid
== I40E_APP_PROTOID_ISCSI
) {
4285 tc
= dcbcfg
->etscfg
.prioritytable
[app
.priority
];
4286 enabled_tc
|= BIT_ULL(tc
);
4295 * i40e_dcb_get_num_tc - Get the number of TCs from DCBx config
4296 * @dcbcfg: the corresponding DCBx configuration structure
4298 * Return the number of TCs from given DCBx configuration
4300 static u8
i40e_dcb_get_num_tc(struct i40e_dcbx_config
*dcbcfg
)
4305 /* Scan the ETS Config Priority Table to find
4306 * traffic class enabled for a given priority
4307 * and use the traffic class index to get the
4308 * number of traffic classes enabled
4310 for (i
= 0; i
< I40E_MAX_USER_PRIORITY
; i
++) {
4311 if (dcbcfg
->etscfg
.prioritytable
[i
] > num_tc
)
4312 num_tc
= dcbcfg
->etscfg
.prioritytable
[i
];
4315 /* Traffic class index starts from zero so
4316 * increment to return the actual count
4322 * i40e_dcb_get_enabled_tc - Get enabled traffic classes
4323 * @dcbcfg: the corresponding DCBx configuration structure
4325 * Query the current DCB configuration and return the number of
4326 * traffic classes enabled from the given DCBX config
4328 static u8
i40e_dcb_get_enabled_tc(struct i40e_dcbx_config
*dcbcfg
)
4330 u8 num_tc
= i40e_dcb_get_num_tc(dcbcfg
);
4334 for (i
= 0; i
< num_tc
; i
++)
4335 enabled_tc
|= BIT(i
);
4341 * i40e_pf_get_num_tc - Get enabled traffic classes for PF
4342 * @pf: PF being queried
4344 * Return number of traffic classes enabled for the given PF
4346 static u8
i40e_pf_get_num_tc(struct i40e_pf
*pf
)
4348 struct i40e_hw
*hw
= &pf
->hw
;
4351 struct i40e_dcbx_config
*dcbcfg
= &hw
->local_dcbx_config
;
4353 /* If DCB is not enabled then always in single TC */
4354 if (!(pf
->flags
& I40E_FLAG_DCB_ENABLED
))
4357 /* SFP mode will be enabled for all TCs on port */
4358 if (!(pf
->flags
& I40E_FLAG_MFP_ENABLED
))
4359 return i40e_dcb_get_num_tc(dcbcfg
);
4361 /* MFP mode return count of enabled TCs for this PF */
4362 if (pf
->hw
.func_caps
.iscsi
)
4363 enabled_tc
= i40e_get_iscsi_tc_map(pf
);
4365 return 1; /* Only TC0 */
4367 /* At least have TC0 */
4368 enabled_tc
= (enabled_tc
? enabled_tc
: 0x1);
4369 for (i
= 0; i
< I40E_MAX_TRAFFIC_CLASS
; i
++) {
4370 if (enabled_tc
& BIT_ULL(i
))
4377 * i40e_pf_get_default_tc - Get bitmap for first enabled TC
4378 * @pf: PF being queried
4380 * Return a bitmap for first enabled traffic class for this PF.
4382 static u8
i40e_pf_get_default_tc(struct i40e_pf
*pf
)
4384 u8 enabled_tc
= pf
->hw
.func_caps
.enabled_tcmap
;
4388 return 0x1; /* TC0 */
4390 /* Find the first enabled TC */
4391 for (i
= 0; i
< I40E_MAX_TRAFFIC_CLASS
; i
++) {
4392 if (enabled_tc
& BIT_ULL(i
))
4400 * i40e_pf_get_pf_tc_map - Get bitmap for enabled traffic classes
4401 * @pf: PF being queried
4403 * Return a bitmap for enabled traffic classes for this PF.
4405 static u8
i40e_pf_get_tc_map(struct i40e_pf
*pf
)
4407 /* If DCB is not enabled for this PF then just return default TC */
4408 if (!(pf
->flags
& I40E_FLAG_DCB_ENABLED
))
4409 return i40e_pf_get_default_tc(pf
);
4411 /* SFP mode we want PF to be enabled for all TCs */
4412 if (!(pf
->flags
& I40E_FLAG_MFP_ENABLED
))
4413 return i40e_dcb_get_enabled_tc(&pf
->hw
.local_dcbx_config
);
4415 /* MFP enabled and iSCSI PF type */
4416 if (pf
->hw
.func_caps
.iscsi
)
4417 return i40e_get_iscsi_tc_map(pf
);
4419 return i40e_pf_get_default_tc(pf
);
4423 * i40e_vsi_get_bw_info - Query VSI BW Information
4424 * @vsi: the VSI being queried
4426 * Returns 0 on success, negative value on failure
4428 static int i40e_vsi_get_bw_info(struct i40e_vsi
*vsi
)
4430 struct i40e_aqc_query_vsi_ets_sla_config_resp bw_ets_config
= {0};
4431 struct i40e_aqc_query_vsi_bw_config_resp bw_config
= {0};
4432 struct i40e_pf
*pf
= vsi
->back
;
4433 struct i40e_hw
*hw
= &pf
->hw
;
4438 /* Get the VSI level BW configuration */
4439 ret
= i40e_aq_query_vsi_bw_config(hw
, vsi
->seid
, &bw_config
, NULL
);
4441 dev_info(&pf
->pdev
->dev
,
4442 "couldn't get PF vsi bw config, err %s aq_err %s\n",
4443 i40e_stat_str(&pf
->hw
, ret
),
4444 i40e_aq_str(&pf
->hw
, pf
->hw
.aq
.asq_last_status
));
4448 /* Get the VSI level BW configuration per TC */
4449 ret
= i40e_aq_query_vsi_ets_sla_config(hw
, vsi
->seid
, &bw_ets_config
,
4452 dev_info(&pf
->pdev
->dev
,
4453 "couldn't get PF vsi ets bw config, err %s aq_err %s\n",
4454 i40e_stat_str(&pf
->hw
, ret
),
4455 i40e_aq_str(&pf
->hw
, pf
->hw
.aq
.asq_last_status
));
4459 if (bw_config
.tc_valid_bits
!= bw_ets_config
.tc_valid_bits
) {
4460 dev_info(&pf
->pdev
->dev
,
4461 "Enabled TCs mismatch from querying VSI BW info 0x%08x 0x%08x\n",
4462 bw_config
.tc_valid_bits
,
4463 bw_ets_config
.tc_valid_bits
);
4464 /* Still continuing */
4467 vsi
->bw_limit
= le16_to_cpu(bw_config
.port_bw_limit
);
4468 vsi
->bw_max_quanta
= bw_config
.max_bw
;
4469 tc_bw_max
= le16_to_cpu(bw_ets_config
.tc_bw_max
[0]) |
4470 (le16_to_cpu(bw_ets_config
.tc_bw_max
[1]) << 16);
4471 for (i
= 0; i
< I40E_MAX_TRAFFIC_CLASS
; i
++) {
4472 vsi
->bw_ets_share_credits
[i
] = bw_ets_config
.share_credits
[i
];
4473 vsi
->bw_ets_limit_credits
[i
] =
4474 le16_to_cpu(bw_ets_config
.credits
[i
]);
4475 /* 3 bits out of 4 for each TC */
4476 vsi
->bw_ets_max_quanta
[i
] = (u8
)((tc_bw_max
>> (i
*4)) & 0x7);
4483 * i40e_vsi_configure_bw_alloc - Configure VSI BW allocation per TC
4484 * @vsi: the VSI being configured
4485 * @enabled_tc: TC bitmap
4486 * @bw_credits: BW shared credits per TC
4488 * Returns 0 on success, negative value on failure
4490 static int i40e_vsi_configure_bw_alloc(struct i40e_vsi
*vsi
, u8 enabled_tc
,
4493 struct i40e_aqc_configure_vsi_tc_bw_data bw_data
;
4497 bw_data
.tc_valid_bits
= enabled_tc
;
4498 for (i
= 0; i
< I40E_MAX_TRAFFIC_CLASS
; i
++)
4499 bw_data
.tc_bw_credits
[i
] = bw_share
[i
];
4501 ret
= i40e_aq_config_vsi_tc_bw(&vsi
->back
->hw
, vsi
->seid
, &bw_data
,
4504 dev_info(&vsi
->back
->pdev
->dev
,
4505 "AQ command Config VSI BW allocation per TC failed = %d\n",
4506 vsi
->back
->hw
.aq
.asq_last_status
);
4510 for (i
= 0; i
< I40E_MAX_TRAFFIC_CLASS
; i
++)
4511 vsi
->info
.qs_handle
[i
] = bw_data
.qs_handles
[i
];
4517 * i40e_vsi_config_netdev_tc - Setup the netdev TC configuration
4518 * @vsi: the VSI being configured
4519 * @enabled_tc: TC map to be enabled
4522 static void i40e_vsi_config_netdev_tc(struct i40e_vsi
*vsi
, u8 enabled_tc
)
4524 struct net_device
*netdev
= vsi
->netdev
;
4525 struct i40e_pf
*pf
= vsi
->back
;
4526 struct i40e_hw
*hw
= &pf
->hw
;
4529 struct i40e_dcbx_config
*dcbcfg
= &hw
->local_dcbx_config
;
4535 netdev_reset_tc(netdev
);
4539 /* Set up actual enabled TCs on the VSI */
4540 if (netdev_set_num_tc(netdev
, vsi
->tc_config
.numtc
))
4543 /* set per TC queues for the VSI */
4544 for (i
= 0; i
< I40E_MAX_TRAFFIC_CLASS
; i
++) {
4545 /* Only set TC queues for enabled tcs
4547 * e.g. For a VSI that has TC0 and TC3 enabled the
4548 * enabled_tc bitmap would be 0x00001001; the driver
4549 * will set the numtc for netdev as 2 that will be
4550 * referenced by the netdev layer as TC 0 and 1.
4552 if (vsi
->tc_config
.enabled_tc
& BIT_ULL(i
))
4553 netdev_set_tc_queue(netdev
,
4554 vsi
->tc_config
.tc_info
[i
].netdev_tc
,
4555 vsi
->tc_config
.tc_info
[i
].qcount
,
4556 vsi
->tc_config
.tc_info
[i
].qoffset
);
4559 /* Assign UP2TC map for the VSI */
4560 for (i
= 0; i
< I40E_MAX_USER_PRIORITY
; i
++) {
4561 /* Get the actual TC# for the UP */
4562 u8 ets_tc
= dcbcfg
->etscfg
.prioritytable
[i
];
4563 /* Get the mapped netdev TC# for the UP */
4564 netdev_tc
= vsi
->tc_config
.tc_info
[ets_tc
].netdev_tc
;
4565 netdev_set_prio_tc_map(netdev
, i
, netdev_tc
);
4570 * i40e_vsi_update_queue_map - Update our copy of VSi info with new queue map
4571 * @vsi: the VSI being configured
4572 * @ctxt: the ctxt buffer returned from AQ VSI update param command
4574 static void i40e_vsi_update_queue_map(struct i40e_vsi
*vsi
,
4575 struct i40e_vsi_context
*ctxt
)
4577 /* copy just the sections touched not the entire info
4578 * since not all sections are valid as returned by
4581 vsi
->info
.mapping_flags
= ctxt
->info
.mapping_flags
;
4582 memcpy(&vsi
->info
.queue_mapping
,
4583 &ctxt
->info
.queue_mapping
, sizeof(vsi
->info
.queue_mapping
));
4584 memcpy(&vsi
->info
.tc_mapping
, ctxt
->info
.tc_mapping
,
4585 sizeof(vsi
->info
.tc_mapping
));
4589 * i40e_vsi_config_tc - Configure VSI Tx Scheduler for given TC map
4590 * @vsi: VSI to be configured
4591 * @enabled_tc: TC bitmap
4593 * This configures a particular VSI for TCs that are mapped to the
4594 * given TC bitmap. It uses default bandwidth share for TCs across
4595 * VSIs to configure TC for a particular VSI.
4598 * It is expected that the VSI queues have been quisced before calling
4601 static int i40e_vsi_config_tc(struct i40e_vsi
*vsi
, u8 enabled_tc
)
4603 u8 bw_share
[I40E_MAX_TRAFFIC_CLASS
] = {0};
4604 struct i40e_vsi_context ctxt
;
4608 /* Check if enabled_tc is same as existing or new TCs */
4609 if (vsi
->tc_config
.enabled_tc
== enabled_tc
)
4612 /* Enable ETS TCs with equal BW Share for now across all VSIs */
4613 for (i
= 0; i
< I40E_MAX_TRAFFIC_CLASS
; i
++) {
4614 if (enabled_tc
& BIT_ULL(i
))
4618 ret
= i40e_vsi_configure_bw_alloc(vsi
, enabled_tc
, bw_share
);
4620 dev_info(&vsi
->back
->pdev
->dev
,
4621 "Failed configuring TC map %d for VSI %d\n",
4622 enabled_tc
, vsi
->seid
);
4626 /* Update Queue Pairs Mapping for currently enabled UPs */
4627 ctxt
.seid
= vsi
->seid
;
4628 ctxt
.pf_num
= vsi
->back
->hw
.pf_id
;
4630 ctxt
.uplink_seid
= vsi
->uplink_seid
;
4631 ctxt
.info
= vsi
->info
;
4632 i40e_vsi_setup_queue_map(vsi
, &ctxt
, enabled_tc
, false);
4634 /* Update the VSI after updating the VSI queue-mapping information */
4635 ret
= i40e_aq_update_vsi_params(&vsi
->back
->hw
, &ctxt
, NULL
);
4637 dev_info(&vsi
->back
->pdev
->dev
,
4638 "Update vsi tc config failed, err %s aq_err %s\n",
4639 i40e_stat_str(&vsi
->back
->hw
, ret
),
4640 i40e_aq_str(&vsi
->back
->hw
,
4641 vsi
->back
->hw
.aq
.asq_last_status
));
4644 /* update the local VSI info with updated queue map */
4645 i40e_vsi_update_queue_map(vsi
, &ctxt
);
4646 vsi
->info
.valid_sections
= 0;
4648 /* Update current VSI BW information */
4649 ret
= i40e_vsi_get_bw_info(vsi
);
4651 dev_info(&vsi
->back
->pdev
->dev
,
4652 "Failed updating vsi bw info, err %s aq_err %s\n",
4653 i40e_stat_str(&vsi
->back
->hw
, ret
),
4654 i40e_aq_str(&vsi
->back
->hw
,
4655 vsi
->back
->hw
.aq
.asq_last_status
));
4659 /* Update the netdev TC setup */
4660 i40e_vsi_config_netdev_tc(vsi
, enabled_tc
);
4666 * i40e_veb_config_tc - Configure TCs for given VEB
4668 * @enabled_tc: TC bitmap
4670 * Configures given TC bitmap for VEB (switching) element
4672 int i40e_veb_config_tc(struct i40e_veb
*veb
, u8 enabled_tc
)
4674 struct i40e_aqc_configure_switching_comp_bw_config_data bw_data
= {0};
4675 struct i40e_pf
*pf
= veb
->pf
;
4679 /* No TCs or already enabled TCs just return */
4680 if (!enabled_tc
|| veb
->enabled_tc
== enabled_tc
)
4683 bw_data
.tc_valid_bits
= enabled_tc
;
4684 /* bw_data.absolute_credits is not set (relative) */
4686 /* Enable ETS TCs with equal BW Share for now */
4687 for (i
= 0; i
< I40E_MAX_TRAFFIC_CLASS
; i
++) {
4688 if (enabled_tc
& BIT_ULL(i
))
4689 bw_data
.tc_bw_share_credits
[i
] = 1;
4692 ret
= i40e_aq_config_switch_comp_bw_config(&pf
->hw
, veb
->seid
,
4695 dev_info(&pf
->pdev
->dev
,
4696 "VEB bw config failed, err %s aq_err %s\n",
4697 i40e_stat_str(&pf
->hw
, ret
),
4698 i40e_aq_str(&pf
->hw
, pf
->hw
.aq
.asq_last_status
));
4702 /* Update the BW information */
4703 ret
= i40e_veb_get_bw_info(veb
);
4705 dev_info(&pf
->pdev
->dev
,
4706 "Failed getting veb bw config, err %s aq_err %s\n",
4707 i40e_stat_str(&pf
->hw
, ret
),
4708 i40e_aq_str(&pf
->hw
, pf
->hw
.aq
.asq_last_status
));
4715 #ifdef CONFIG_I40E_DCB
4717 * i40e_dcb_reconfigure - Reconfigure all VEBs and VSIs
4720 * Reconfigure VEB/VSIs on a given PF; it is assumed that
4721 * the caller would've quiesce all the VSIs before calling
4724 static void i40e_dcb_reconfigure(struct i40e_pf
*pf
)
4730 /* Enable the TCs available on PF to all VEBs */
4731 tc_map
= i40e_pf_get_tc_map(pf
);
4732 for (v
= 0; v
< I40E_MAX_VEB
; v
++) {
4735 ret
= i40e_veb_config_tc(pf
->veb
[v
], tc_map
);
4737 dev_info(&pf
->pdev
->dev
,
4738 "Failed configuring TC for VEB seid=%d\n",
4740 /* Will try to configure as many components */
4744 /* Update each VSI */
4745 for (v
= 0; v
< pf
->num_alloc_vsi
; v
++) {
4749 /* - Enable all TCs for the LAN VSI
4751 * - For FCoE VSI only enable the TC configured
4752 * as per the APP TLV
4754 * - For all others keep them at TC0 for now
4756 if (v
== pf
->lan_vsi
)
4757 tc_map
= i40e_pf_get_tc_map(pf
);
4759 tc_map
= i40e_pf_get_default_tc(pf
);
4761 if (pf
->vsi
[v
]->type
== I40E_VSI_FCOE
)
4762 tc_map
= i40e_get_fcoe_tc_map(pf
);
4763 #endif /* #ifdef I40E_FCOE */
4765 ret
= i40e_vsi_config_tc(pf
->vsi
[v
], tc_map
);
4767 dev_info(&pf
->pdev
->dev
,
4768 "Failed configuring TC for VSI seid=%d\n",
4770 /* Will try to configure as many components */
4772 /* Re-configure VSI vectors based on updated TC map */
4773 i40e_vsi_map_rings_to_vectors(pf
->vsi
[v
]);
4774 if (pf
->vsi
[v
]->netdev
)
4775 i40e_dcbnl_set_all(pf
->vsi
[v
]);
4781 * i40e_resume_port_tx - Resume port Tx
4784 * Resume a port's Tx and issue a PF reset in case of failure to
4787 static int i40e_resume_port_tx(struct i40e_pf
*pf
)
4789 struct i40e_hw
*hw
= &pf
->hw
;
4792 ret
= i40e_aq_resume_port_tx(hw
, NULL
);
4794 dev_info(&pf
->pdev
->dev
,
4795 "Resume Port Tx failed, err %s aq_err %s\n",
4796 i40e_stat_str(&pf
->hw
, ret
),
4797 i40e_aq_str(&pf
->hw
, pf
->hw
.aq
.asq_last_status
));
4798 /* Schedule PF reset to recover */
4799 set_bit(__I40E_PF_RESET_REQUESTED
, &pf
->state
);
4800 i40e_service_event_schedule(pf
);
4807 * i40e_init_pf_dcb - Initialize DCB configuration
4808 * @pf: PF being configured
4810 * Query the current DCB configuration and cache it
4811 * in the hardware structure
4813 static int i40e_init_pf_dcb(struct i40e_pf
*pf
)
4815 struct i40e_hw
*hw
= &pf
->hw
;
4818 /* Do not enable DCB for SW1 and SW2 images even if the FW is capable */
4819 if (((pf
->hw
.aq
.fw_maj_ver
== 4) && (pf
->hw
.aq
.fw_min_ver
< 33)) ||
4820 (pf
->hw
.aq
.fw_maj_ver
< 4))
4823 /* Get the initial DCB configuration */
4824 err
= i40e_init_dcb(hw
);
4826 /* Device/Function is not DCBX capable */
4827 if ((!hw
->func_caps
.dcb
) ||
4828 (hw
->dcbx_status
== I40E_DCBX_STATUS_DISABLED
)) {
4829 dev_info(&pf
->pdev
->dev
,
4830 "DCBX offload is not supported or is disabled for this PF.\n");
4832 if (pf
->flags
& I40E_FLAG_MFP_ENABLED
)
4836 /* When status is not DISABLED then DCBX in FW */
4837 pf
->dcbx_cap
= DCB_CAP_DCBX_LLD_MANAGED
|
4838 DCB_CAP_DCBX_VER_IEEE
;
4840 pf
->flags
|= I40E_FLAG_DCB_CAPABLE
;
4841 /* Enable DCB tagging only when more than one TC */
4842 if (i40e_dcb_get_num_tc(&hw
->local_dcbx_config
) > 1)
4843 pf
->flags
|= I40E_FLAG_DCB_ENABLED
;
4844 dev_dbg(&pf
->pdev
->dev
,
4845 "DCBX offload is supported for this PF.\n");
4848 dev_info(&pf
->pdev
->dev
,
4849 "Query for DCB configuration failed, err %s aq_err %s\n",
4850 i40e_stat_str(&pf
->hw
, err
),
4851 i40e_aq_str(&pf
->hw
, pf
->hw
.aq
.asq_last_status
));
4857 #endif /* CONFIG_I40E_DCB */
4858 #define SPEED_SIZE 14
4861 * i40e_print_link_message - print link up or down
4862 * @vsi: the VSI for which link needs a message
4864 static void i40e_print_link_message(struct i40e_vsi
*vsi
, bool isup
)
4866 char speed
[SPEED_SIZE
] = "Unknown";
4867 char fc
[FC_SIZE
] = "RX/TX";
4870 netdev_info(vsi
->netdev
, "NIC Link is Down\n");
4874 /* Warn user if link speed on NPAR enabled partition is not at
4877 if (vsi
->back
->hw
.func_caps
.npar_enable
&&
4878 (vsi
->back
->hw
.phy
.link_info
.link_speed
== I40E_LINK_SPEED_1GB
||
4879 vsi
->back
->hw
.phy
.link_info
.link_speed
== I40E_LINK_SPEED_100MB
))
4880 netdev_warn(vsi
->netdev
,
4881 "The partition detected link speed that is less than 10Gbps\n");
4883 switch (vsi
->back
->hw
.phy
.link_info
.link_speed
) {
4884 case I40E_LINK_SPEED_40GB
:
4885 strlcpy(speed
, "40 Gbps", SPEED_SIZE
);
4887 case I40E_LINK_SPEED_20GB
:
4888 strncpy(speed
, "20 Gbps", SPEED_SIZE
);
4890 case I40E_LINK_SPEED_10GB
:
4891 strlcpy(speed
, "10 Gbps", SPEED_SIZE
);
4893 case I40E_LINK_SPEED_1GB
:
4894 strlcpy(speed
, "1000 Mbps", SPEED_SIZE
);
4896 case I40E_LINK_SPEED_100MB
:
4897 strncpy(speed
, "100 Mbps", SPEED_SIZE
);
4903 switch (vsi
->back
->hw
.fc
.current_mode
) {
4905 strlcpy(fc
, "RX/TX", FC_SIZE
);
4907 case I40E_FC_TX_PAUSE
:
4908 strlcpy(fc
, "TX", FC_SIZE
);
4910 case I40E_FC_RX_PAUSE
:
4911 strlcpy(fc
, "RX", FC_SIZE
);
4914 strlcpy(fc
, "None", FC_SIZE
);
4918 netdev_info(vsi
->netdev
, "NIC Link is Up %s Full Duplex, Flow Control: %s\n",
4923 * i40e_up_complete - Finish the last steps of bringing up a connection
4924 * @vsi: the VSI being configured
4926 static int i40e_up_complete(struct i40e_vsi
*vsi
)
4928 struct i40e_pf
*pf
= vsi
->back
;
4931 if (pf
->flags
& I40E_FLAG_MSIX_ENABLED
)
4932 i40e_vsi_configure_msix(vsi
);
4934 i40e_configure_msi_and_legacy(vsi
);
4937 err
= i40e_vsi_control_rings(vsi
, true);
4941 clear_bit(__I40E_DOWN
, &vsi
->state
);
4942 i40e_napi_enable_all(vsi
);
4943 i40e_vsi_enable_irq(vsi
);
4945 if ((pf
->hw
.phy
.link_info
.link_info
& I40E_AQ_LINK_UP
) &&
4947 i40e_print_link_message(vsi
, true);
4948 netif_tx_start_all_queues(vsi
->netdev
);
4949 netif_carrier_on(vsi
->netdev
);
4950 } else if (vsi
->netdev
) {
4951 i40e_print_link_message(vsi
, false);
4952 /* need to check for qualified module here*/
4953 if ((pf
->hw
.phy
.link_info
.link_info
&
4954 I40E_AQ_MEDIA_AVAILABLE
) &&
4955 (!(pf
->hw
.phy
.link_info
.an_info
&
4956 I40E_AQ_QUALIFIED_MODULE
)))
4957 netdev_err(vsi
->netdev
,
4958 "the driver failed to link because an unqualified module was detected.");
4961 /* replay FDIR SB filters */
4962 if (vsi
->type
== I40E_VSI_FDIR
) {
4963 /* reset fd counters */
4964 pf
->fd_add_err
= pf
->fd_atr_cnt
= 0;
4965 if (pf
->fd_tcp_rule
> 0) {
4966 pf
->flags
&= ~I40E_FLAG_FD_ATR_ENABLED
;
4967 if (I40E_DEBUG_FD
& pf
->hw
.debug_mask
)
4968 dev_info(&pf
->pdev
->dev
, "Forcing ATR off, sideband rules for TCP/IPv4 exist\n");
4969 pf
->fd_tcp_rule
= 0;
4971 i40e_fdir_filter_restore(vsi
);
4973 i40e_service_event_schedule(pf
);
4979 * i40e_vsi_reinit_locked - Reset the VSI
4980 * @vsi: the VSI being configured
4982 * Rebuild the ring structs after some configuration
4983 * has changed, e.g. MTU size.
4985 static void i40e_vsi_reinit_locked(struct i40e_vsi
*vsi
)
4987 struct i40e_pf
*pf
= vsi
->back
;
4989 WARN_ON(in_interrupt());
4990 while (test_and_set_bit(__I40E_CONFIG_BUSY
, &pf
->state
))
4991 usleep_range(1000, 2000);
4994 /* Give a VF some time to respond to the reset. The
4995 * two second wait is based upon the watchdog cycle in
4998 if (vsi
->type
== I40E_VSI_SRIOV
)
5001 clear_bit(__I40E_CONFIG_BUSY
, &pf
->state
);
5005 * i40e_up - Bring the connection back up after being down
5006 * @vsi: the VSI being configured
5008 int i40e_up(struct i40e_vsi
*vsi
)
5012 err
= i40e_vsi_configure(vsi
);
5014 err
= i40e_up_complete(vsi
);
5020 * i40e_down - Shutdown the connection processing
5021 * @vsi: the VSI being stopped
5023 void i40e_down(struct i40e_vsi
*vsi
)
5027 /* It is assumed that the caller of this function
5028 * sets the vsi->state __I40E_DOWN bit.
5031 netif_carrier_off(vsi
->netdev
);
5032 netif_tx_disable(vsi
->netdev
);
5034 i40e_vsi_disable_irq(vsi
);
5035 i40e_vsi_control_rings(vsi
, false);
5036 i40e_napi_disable_all(vsi
);
5038 for (i
= 0; i
< vsi
->num_queue_pairs
; i
++) {
5039 i40e_clean_tx_ring(vsi
->tx_rings
[i
]);
5040 i40e_clean_rx_ring(vsi
->rx_rings
[i
]);
5045 * i40e_setup_tc - configure multiple traffic classes
5046 * @netdev: net device to configure
5047 * @tc: number of traffic classes to enable
5050 int i40e_setup_tc(struct net_device
*netdev
, u8 tc
)
5052 static int i40e_setup_tc(struct net_device
*netdev
, u8 tc
)
5055 struct i40e_netdev_priv
*np
= netdev_priv(netdev
);
5056 struct i40e_vsi
*vsi
= np
->vsi
;
5057 struct i40e_pf
*pf
= vsi
->back
;
5062 /* Check if DCB enabled to continue */
5063 if (!(pf
->flags
& I40E_FLAG_DCB_ENABLED
)) {
5064 netdev_info(netdev
, "DCB is not enabled for adapter\n");
5068 /* Check if MFP enabled */
5069 if (pf
->flags
& I40E_FLAG_MFP_ENABLED
) {
5070 netdev_info(netdev
, "Configuring TC not supported in MFP mode\n");
5074 /* Check whether tc count is within enabled limit */
5075 if (tc
> i40e_pf_get_num_tc(pf
)) {
5076 netdev_info(netdev
, "TC count greater than enabled on link for adapter\n");
5080 /* Generate TC map for number of tc requested */
5081 for (i
= 0; i
< tc
; i
++)
5082 enabled_tc
|= BIT_ULL(i
);
5084 /* Requesting same TC configuration as already enabled */
5085 if (enabled_tc
== vsi
->tc_config
.enabled_tc
)
5088 /* Quiesce VSI queues */
5089 i40e_quiesce_vsi(vsi
);
5091 /* Configure VSI for enabled TCs */
5092 ret
= i40e_vsi_config_tc(vsi
, enabled_tc
);
5094 netdev_info(netdev
, "Failed configuring TC for VSI seid=%d\n",
5100 i40e_unquiesce_vsi(vsi
);
5107 * i40e_open - Called when a network interface is made active
5108 * @netdev: network interface device structure
5110 * The open entry point is called when a network interface is made
5111 * active by the system (IFF_UP). At this point all resources needed
5112 * for transmit and receive operations are allocated, the interrupt
5113 * handler is registered with the OS, the netdev watchdog subtask is
5114 * enabled, and the stack is notified that the interface is ready.
5116 * Returns 0 on success, negative value on failure
5118 int i40e_open(struct net_device
*netdev
)
5120 struct i40e_netdev_priv
*np
= netdev_priv(netdev
);
5121 struct i40e_vsi
*vsi
= np
->vsi
;
5122 struct i40e_pf
*pf
= vsi
->back
;
5125 /* disallow open during test or if eeprom is broken */
5126 if (test_bit(__I40E_TESTING
, &pf
->state
) ||
5127 test_bit(__I40E_BAD_EEPROM
, &pf
->state
))
5130 netif_carrier_off(netdev
);
5132 err
= i40e_vsi_open(vsi
);
5136 /* configure global TSO hardware offload settings */
5137 wr32(&pf
->hw
, I40E_GLLAN_TSOMSK_F
, be32_to_cpu(TCP_FLAG_PSH
|
5138 TCP_FLAG_FIN
) >> 16);
5139 wr32(&pf
->hw
, I40E_GLLAN_TSOMSK_M
, be32_to_cpu(TCP_FLAG_PSH
|
5141 TCP_FLAG_CWR
) >> 16);
5142 wr32(&pf
->hw
, I40E_GLLAN_TSOMSK_L
, be32_to_cpu(TCP_FLAG_CWR
) >> 16);
5144 #ifdef CONFIG_I40E_VXLAN
5145 vxlan_get_rx_port(netdev
);
5153 * @vsi: the VSI to open
5155 * Finish initialization of the VSI.
5157 * Returns 0 on success, negative value on failure
5159 int i40e_vsi_open(struct i40e_vsi
*vsi
)
5161 struct i40e_pf
*pf
= vsi
->back
;
5162 char int_name
[I40E_INT_NAME_STR_LEN
];
5165 /* allocate descriptors */
5166 err
= i40e_vsi_setup_tx_resources(vsi
);
5169 err
= i40e_vsi_setup_rx_resources(vsi
);
5173 err
= i40e_vsi_configure(vsi
);
5178 snprintf(int_name
, sizeof(int_name
) - 1, "%s-%s",
5179 dev_driver_string(&pf
->pdev
->dev
), vsi
->netdev
->name
);
5180 err
= i40e_vsi_request_irq(vsi
, int_name
);
5184 /* Notify the stack of the actual queue counts. */
5185 err
= netif_set_real_num_tx_queues(vsi
->netdev
,
5186 vsi
->num_queue_pairs
);
5188 goto err_set_queues
;
5190 err
= netif_set_real_num_rx_queues(vsi
->netdev
,
5191 vsi
->num_queue_pairs
);
5193 goto err_set_queues
;
5195 } else if (vsi
->type
== I40E_VSI_FDIR
) {
5196 snprintf(int_name
, sizeof(int_name
) - 1, "%s-%s:fdir",
5197 dev_driver_string(&pf
->pdev
->dev
),
5198 dev_name(&pf
->pdev
->dev
));
5199 err
= i40e_vsi_request_irq(vsi
, int_name
);
5206 err
= i40e_up_complete(vsi
);
5208 goto err_up_complete
;
5215 i40e_vsi_free_irq(vsi
);
5217 i40e_vsi_free_rx_resources(vsi
);
5219 i40e_vsi_free_tx_resources(vsi
);
5220 if (vsi
== pf
->vsi
[pf
->lan_vsi
])
5221 i40e_do_reset(pf
, BIT_ULL(__I40E_PF_RESET_REQUESTED
));
5227 * i40e_fdir_filter_exit - Cleans up the Flow Director accounting
5228 * @pf: Pointer to PF
5230 * This function destroys the hlist where all the Flow Director
5231 * filters were saved.
5233 static void i40e_fdir_filter_exit(struct i40e_pf
*pf
)
5235 struct i40e_fdir_filter
*filter
;
5236 struct hlist_node
*node2
;
5238 hlist_for_each_entry_safe(filter
, node2
,
5239 &pf
->fdir_filter_list
, fdir_node
) {
5240 hlist_del(&filter
->fdir_node
);
5243 pf
->fdir_pf_active_filters
= 0;
5247 * i40e_close - Disables a network interface
5248 * @netdev: network interface device structure
5250 * The close entry point is called when an interface is de-activated
5251 * by the OS. The hardware is still under the driver's control, but
5252 * this netdev interface is disabled.
5254 * Returns 0, this is not allowed to fail
5257 int i40e_close(struct net_device
*netdev
)
5259 static int i40e_close(struct net_device
*netdev
)
5262 struct i40e_netdev_priv
*np
= netdev_priv(netdev
);
5263 struct i40e_vsi
*vsi
= np
->vsi
;
5265 i40e_vsi_close(vsi
);
5271 * i40e_do_reset - Start a PF or Core Reset sequence
5272 * @pf: board private structure
5273 * @reset_flags: which reset is requested
5275 * The essential difference in resets is that the PF Reset
5276 * doesn't clear the packet buffers, doesn't reset the PE
5277 * firmware, and doesn't bother the other PFs on the chip.
5279 void i40e_do_reset(struct i40e_pf
*pf
, u32 reset_flags
)
5283 WARN_ON(in_interrupt());
5285 if (i40e_check_asq_alive(&pf
->hw
))
5286 i40e_vc_notify_reset(pf
);
5288 /* do the biggest reset indicated */
5289 if (reset_flags
& BIT_ULL(__I40E_GLOBAL_RESET_REQUESTED
)) {
5291 /* Request a Global Reset
5293 * This will start the chip's countdown to the actual full
5294 * chip reset event, and a warning interrupt to be sent
5295 * to all PFs, including the requestor. Our handler
5296 * for the warning interrupt will deal with the shutdown
5297 * and recovery of the switch setup.
5299 dev_dbg(&pf
->pdev
->dev
, "GlobalR requested\n");
5300 val
= rd32(&pf
->hw
, I40E_GLGEN_RTRIG
);
5301 val
|= I40E_GLGEN_RTRIG_GLOBR_MASK
;
5302 wr32(&pf
->hw
, I40E_GLGEN_RTRIG
, val
);
5304 } else if (reset_flags
& BIT_ULL(__I40E_CORE_RESET_REQUESTED
)) {
5306 /* Request a Core Reset
5308 * Same as Global Reset, except does *not* include the MAC/PHY
5310 dev_dbg(&pf
->pdev
->dev
, "CoreR requested\n");
5311 val
= rd32(&pf
->hw
, I40E_GLGEN_RTRIG
);
5312 val
|= I40E_GLGEN_RTRIG_CORER_MASK
;
5313 wr32(&pf
->hw
, I40E_GLGEN_RTRIG
, val
);
5314 i40e_flush(&pf
->hw
);
5316 } else if (reset_flags
& BIT_ULL(__I40E_PF_RESET_REQUESTED
)) {
5318 /* Request a PF Reset
5320 * Resets only the PF-specific registers
5322 * This goes directly to the tear-down and rebuild of
5323 * the switch, since we need to do all the recovery as
5324 * for the Core Reset.
5326 dev_dbg(&pf
->pdev
->dev
, "PFR requested\n");
5327 i40e_handle_reset_warning(pf
);
5329 } else if (reset_flags
& BIT_ULL(__I40E_REINIT_REQUESTED
)) {
5332 /* Find the VSI(s) that requested a re-init */
5333 dev_info(&pf
->pdev
->dev
,
5334 "VSI reinit requested\n");
5335 for (v
= 0; v
< pf
->num_alloc_vsi
; v
++) {
5336 struct i40e_vsi
*vsi
= pf
->vsi
[v
];
5338 test_bit(__I40E_REINIT_REQUESTED
, &vsi
->state
)) {
5339 i40e_vsi_reinit_locked(pf
->vsi
[v
]);
5340 clear_bit(__I40E_REINIT_REQUESTED
, &vsi
->state
);
5344 /* no further action needed, so return now */
5346 } else if (reset_flags
& BIT_ULL(__I40E_DOWN_REQUESTED
)) {
5349 /* Find the VSI(s) that needs to be brought down */
5350 dev_info(&pf
->pdev
->dev
, "VSI down requested\n");
5351 for (v
= 0; v
< pf
->num_alloc_vsi
; v
++) {
5352 struct i40e_vsi
*vsi
= pf
->vsi
[v
];
5354 test_bit(__I40E_DOWN_REQUESTED
, &vsi
->state
)) {
5355 set_bit(__I40E_DOWN
, &vsi
->state
);
5357 clear_bit(__I40E_DOWN_REQUESTED
, &vsi
->state
);
5361 /* no further action needed, so return now */
5364 dev_info(&pf
->pdev
->dev
,
5365 "bad reset request 0x%08x\n", reset_flags
);
5370 #ifdef CONFIG_I40E_DCB
5372 * i40e_dcb_need_reconfig - Check if DCB needs reconfig
5373 * @pf: board private structure
5374 * @old_cfg: current DCB config
5375 * @new_cfg: new DCB config
5377 bool i40e_dcb_need_reconfig(struct i40e_pf
*pf
,
5378 struct i40e_dcbx_config
*old_cfg
,
5379 struct i40e_dcbx_config
*new_cfg
)
5381 bool need_reconfig
= false;
5383 /* Check if ETS configuration has changed */
5384 if (memcmp(&new_cfg
->etscfg
,
5386 sizeof(new_cfg
->etscfg
))) {
5387 /* If Priority Table has changed reconfig is needed */
5388 if (memcmp(&new_cfg
->etscfg
.prioritytable
,
5389 &old_cfg
->etscfg
.prioritytable
,
5390 sizeof(new_cfg
->etscfg
.prioritytable
))) {
5391 need_reconfig
= true;
5392 dev_dbg(&pf
->pdev
->dev
, "ETS UP2TC changed.\n");
5395 if (memcmp(&new_cfg
->etscfg
.tcbwtable
,
5396 &old_cfg
->etscfg
.tcbwtable
,
5397 sizeof(new_cfg
->etscfg
.tcbwtable
)))
5398 dev_dbg(&pf
->pdev
->dev
, "ETS TC BW Table changed.\n");
5400 if (memcmp(&new_cfg
->etscfg
.tsatable
,
5401 &old_cfg
->etscfg
.tsatable
,
5402 sizeof(new_cfg
->etscfg
.tsatable
)))
5403 dev_dbg(&pf
->pdev
->dev
, "ETS TSA Table changed.\n");
5406 /* Check if PFC configuration has changed */
5407 if (memcmp(&new_cfg
->pfc
,
5409 sizeof(new_cfg
->pfc
))) {
5410 need_reconfig
= true;
5411 dev_dbg(&pf
->pdev
->dev
, "PFC config change detected.\n");
5414 /* Check if APP Table has changed */
5415 if (memcmp(&new_cfg
->app
,
5417 sizeof(new_cfg
->app
))) {
5418 need_reconfig
= true;
5419 dev_dbg(&pf
->pdev
->dev
, "APP Table change detected.\n");
5422 dev_dbg(&pf
->pdev
->dev
, "dcb need_reconfig=%d\n", need_reconfig
);
5423 return need_reconfig
;
5427 * i40e_handle_lldp_event - Handle LLDP Change MIB event
5428 * @pf: board private structure
5429 * @e: event info posted on ARQ
5431 static int i40e_handle_lldp_event(struct i40e_pf
*pf
,
5432 struct i40e_arq_event_info
*e
)
5434 struct i40e_aqc_lldp_get_mib
*mib
=
5435 (struct i40e_aqc_lldp_get_mib
*)&e
->desc
.params
.raw
;
5436 struct i40e_hw
*hw
= &pf
->hw
;
5437 struct i40e_dcbx_config tmp_dcbx_cfg
;
5438 bool need_reconfig
= false;
5442 /* Not DCB capable or capability disabled */
5443 if (!(pf
->flags
& I40E_FLAG_DCB_CAPABLE
))
5446 /* Ignore if event is not for Nearest Bridge */
5447 type
= ((mib
->type
>> I40E_AQ_LLDP_BRIDGE_TYPE_SHIFT
)
5448 & I40E_AQ_LLDP_BRIDGE_TYPE_MASK
);
5449 dev_dbg(&pf
->pdev
->dev
, "LLDP event mib bridge type 0x%x\n", type
);
5450 if (type
!= I40E_AQ_LLDP_BRIDGE_TYPE_NEAREST_BRIDGE
)
5453 /* Check MIB Type and return if event for Remote MIB update */
5454 type
= mib
->type
& I40E_AQ_LLDP_MIB_TYPE_MASK
;
5455 dev_dbg(&pf
->pdev
->dev
,
5456 "LLDP event mib type %s\n", type
? "remote" : "local");
5457 if (type
== I40E_AQ_LLDP_MIB_REMOTE
) {
5458 /* Update the remote cached instance and return */
5459 ret
= i40e_aq_get_dcb_config(hw
, I40E_AQ_LLDP_MIB_REMOTE
,
5460 I40E_AQ_LLDP_BRIDGE_TYPE_NEAREST_BRIDGE
,
5461 &hw
->remote_dcbx_config
);
5465 /* Store the old configuration */
5466 tmp_dcbx_cfg
= hw
->local_dcbx_config
;
5468 /* Reset the old DCBx configuration data */
5469 memset(&hw
->local_dcbx_config
, 0, sizeof(hw
->local_dcbx_config
));
5470 /* Get updated DCBX data from firmware */
5471 ret
= i40e_get_dcb_config(&pf
->hw
);
5473 dev_info(&pf
->pdev
->dev
,
5474 "Failed querying DCB configuration data from firmware, err %s aq_err %s\n",
5475 i40e_stat_str(&pf
->hw
, ret
),
5476 i40e_aq_str(&pf
->hw
, pf
->hw
.aq
.asq_last_status
));
5480 /* No change detected in DCBX configs */
5481 if (!memcmp(&tmp_dcbx_cfg
, &hw
->local_dcbx_config
,
5482 sizeof(tmp_dcbx_cfg
))) {
5483 dev_dbg(&pf
->pdev
->dev
, "No change detected in DCBX configuration.\n");
5487 need_reconfig
= i40e_dcb_need_reconfig(pf
, &tmp_dcbx_cfg
,
5488 &hw
->local_dcbx_config
);
5490 i40e_dcbnl_flush_apps(pf
, &tmp_dcbx_cfg
, &hw
->local_dcbx_config
);
5495 /* Enable DCB tagging only when more than one TC */
5496 if (i40e_dcb_get_num_tc(&hw
->local_dcbx_config
) > 1)
5497 pf
->flags
|= I40E_FLAG_DCB_ENABLED
;
5499 pf
->flags
&= ~I40E_FLAG_DCB_ENABLED
;
5501 set_bit(__I40E_PORT_TX_SUSPENDED
, &pf
->state
);
5502 /* Reconfiguration needed quiesce all VSIs */
5503 i40e_pf_quiesce_all_vsi(pf
);
5505 /* Changes in configuration update VEB/VSI */
5506 i40e_dcb_reconfigure(pf
);
5508 ret
= i40e_resume_port_tx(pf
);
5510 clear_bit(__I40E_PORT_TX_SUSPENDED
, &pf
->state
);
5511 /* In case of error no point in resuming VSIs */
5515 /* Wait for the PF's Tx queues to be disabled */
5516 ret
= i40e_pf_wait_txq_disabled(pf
);
5518 /* Schedule PF reset to recover */
5519 set_bit(__I40E_PF_RESET_REQUESTED
, &pf
->state
);
5520 i40e_service_event_schedule(pf
);
5522 i40e_pf_unquiesce_all_vsi(pf
);
5528 #endif /* CONFIG_I40E_DCB */
5531 * i40e_do_reset_safe - Protected reset path for userland calls.
5532 * @pf: board private structure
5533 * @reset_flags: which reset is requested
5536 void i40e_do_reset_safe(struct i40e_pf
*pf
, u32 reset_flags
)
5539 i40e_do_reset(pf
, reset_flags
);
5544 * i40e_handle_lan_overflow_event - Handler for LAN queue overflow event
5545 * @pf: board private structure
5546 * @e: event info posted on ARQ
5548 * Handler for LAN Queue Overflow Event generated by the firmware for PF
5551 static void i40e_handle_lan_overflow_event(struct i40e_pf
*pf
,
5552 struct i40e_arq_event_info
*e
)
5554 struct i40e_aqc_lan_overflow
*data
=
5555 (struct i40e_aqc_lan_overflow
*)&e
->desc
.params
.raw
;
5556 u32 queue
= le32_to_cpu(data
->prtdcb_rupto
);
5557 u32 qtx_ctl
= le32_to_cpu(data
->otx_ctl
);
5558 struct i40e_hw
*hw
= &pf
->hw
;
5562 dev_dbg(&pf
->pdev
->dev
, "overflow Rx Queue Number = %d QTX_CTL=0x%08x\n",
5565 /* Queue belongs to VF, find the VF and issue VF reset */
5566 if (((qtx_ctl
& I40E_QTX_CTL_PFVF_Q_MASK
)
5567 >> I40E_QTX_CTL_PFVF_Q_SHIFT
) == I40E_QTX_CTL_VF_QUEUE
) {
5568 vf_id
= (u16
)((qtx_ctl
& I40E_QTX_CTL_VFVM_INDX_MASK
)
5569 >> I40E_QTX_CTL_VFVM_INDX_SHIFT
);
5570 vf_id
-= hw
->func_caps
.vf_base_id
;
5571 vf
= &pf
->vf
[vf_id
];
5572 i40e_vc_notify_vf_reset(vf
);
5573 /* Allow VF to process pending reset notification */
5575 i40e_reset_vf(vf
, false);
5580 * i40e_service_event_complete - Finish up the service event
5581 * @pf: board private structure
5583 static void i40e_service_event_complete(struct i40e_pf
*pf
)
5585 BUG_ON(!test_bit(__I40E_SERVICE_SCHED
, &pf
->state
));
5587 /* flush memory to make sure state is correct before next watchog */
5588 smp_mb__before_atomic();
5589 clear_bit(__I40E_SERVICE_SCHED
, &pf
->state
);
5593 * i40e_get_cur_guaranteed_fd_count - Get the consumed guaranteed FD filters
5594 * @pf: board private structure
5596 u32
i40e_get_cur_guaranteed_fd_count(struct i40e_pf
*pf
)
5600 val
= rd32(&pf
->hw
, I40E_PFQF_FDSTAT
);
5601 fcnt_prog
= (val
& I40E_PFQF_FDSTAT_GUARANT_CNT_MASK
);
5606 * i40e_get_current_fd_count - Get total FD filters programmed for this PF
5607 * @pf: board private structure
5609 u32
i40e_get_current_fd_count(struct i40e_pf
*pf
)
5613 val
= rd32(&pf
->hw
, I40E_PFQF_FDSTAT
);
5614 fcnt_prog
= (val
& I40E_PFQF_FDSTAT_GUARANT_CNT_MASK
) +
5615 ((val
& I40E_PFQF_FDSTAT_BEST_CNT_MASK
) >>
5616 I40E_PFQF_FDSTAT_BEST_CNT_SHIFT
);
5621 * i40e_get_global_fd_count - Get total FD filters programmed on device
5622 * @pf: board private structure
5624 u32
i40e_get_global_fd_count(struct i40e_pf
*pf
)
5628 val
= rd32(&pf
->hw
, I40E_GLQF_FDCNT_0
);
5629 fcnt_prog
= (val
& I40E_GLQF_FDCNT_0_GUARANT_CNT_MASK
) +
5630 ((val
& I40E_GLQF_FDCNT_0_BESTCNT_MASK
) >>
5631 I40E_GLQF_FDCNT_0_BESTCNT_SHIFT
);
5636 * i40e_fdir_check_and_reenable - Function to reenabe FD ATR or SB if disabled
5637 * @pf: board private structure
5639 void i40e_fdir_check_and_reenable(struct i40e_pf
*pf
)
5641 u32 fcnt_prog
, fcnt_avail
;
5643 if (test_bit(__I40E_FD_FLUSH_REQUESTED
, &pf
->state
))
5646 /* Check if, FD SB or ATR was auto disabled and if there is enough room
5649 fcnt_prog
= i40e_get_global_fd_count(pf
);
5650 fcnt_avail
= pf
->fdir_pf_filter_count
;
5651 if ((fcnt_prog
< (fcnt_avail
- I40E_FDIR_BUFFER_HEAD_ROOM
)) ||
5652 (pf
->fd_add_err
== 0) ||
5653 (i40e_get_current_atr_cnt(pf
) < pf
->fd_atr_cnt
)) {
5654 if ((pf
->flags
& I40E_FLAG_FD_SB_ENABLED
) &&
5655 (pf
->auto_disable_flags
& I40E_FLAG_FD_SB_ENABLED
)) {
5656 pf
->auto_disable_flags
&= ~I40E_FLAG_FD_SB_ENABLED
;
5657 if (I40E_DEBUG_FD
& pf
->hw
.debug_mask
)
5658 dev_info(&pf
->pdev
->dev
, "FD Sideband/ntuple is being enabled since we have space in the table now\n");
5661 /* Wait for some more space to be available to turn on ATR */
5662 if (fcnt_prog
< (fcnt_avail
- I40E_FDIR_BUFFER_HEAD_ROOM
* 2)) {
5663 if ((pf
->flags
& I40E_FLAG_FD_ATR_ENABLED
) &&
5664 (pf
->auto_disable_flags
& I40E_FLAG_FD_ATR_ENABLED
)) {
5665 pf
->auto_disable_flags
&= ~I40E_FLAG_FD_ATR_ENABLED
;
5666 if (I40E_DEBUG_FD
& pf
->hw
.debug_mask
)
5667 dev_info(&pf
->pdev
->dev
, "ATR is being enabled since we have space in the table now\n");
5672 #define I40E_MIN_FD_FLUSH_INTERVAL 10
5673 #define I40E_MIN_FD_FLUSH_SB_ATR_UNSTABLE 30
5675 * i40e_fdir_flush_and_replay - Function to flush all FD filters and replay SB
5676 * @pf: board private structure
5678 static void i40e_fdir_flush_and_replay(struct i40e_pf
*pf
)
5680 unsigned long min_flush_time
;
5681 int flush_wait_retry
= 50;
5682 bool disable_atr
= false;
5686 if (!(pf
->flags
& (I40E_FLAG_FD_SB_ENABLED
| I40E_FLAG_FD_ATR_ENABLED
)))
5689 if (time_after(jiffies
, pf
->fd_flush_timestamp
+
5690 (I40E_MIN_FD_FLUSH_INTERVAL
* HZ
))) {
5691 /* If the flush is happening too quick and we have mostly
5692 * SB rules we should not re-enable ATR for some time.
5694 min_flush_time
= pf
->fd_flush_timestamp
5695 + (I40E_MIN_FD_FLUSH_SB_ATR_UNSTABLE
* HZ
);
5696 fd_room
= pf
->fdir_pf_filter_count
- pf
->fdir_pf_active_filters
;
5698 if (!(time_after(jiffies
, min_flush_time
)) &&
5699 (fd_room
< I40E_FDIR_BUFFER_HEAD_ROOM_FOR_ATR
)) {
5700 if (I40E_DEBUG_FD
& pf
->hw
.debug_mask
)
5701 dev_info(&pf
->pdev
->dev
, "ATR disabled, not enough FD filter space.\n");
5705 pf
->fd_flush_timestamp
= jiffies
;
5706 pf
->flags
&= ~I40E_FLAG_FD_ATR_ENABLED
;
5707 /* flush all filters */
5708 wr32(&pf
->hw
, I40E_PFQF_CTL_1
,
5709 I40E_PFQF_CTL_1_CLEARFDTABLE_MASK
);
5710 i40e_flush(&pf
->hw
);
5714 /* Check FD flush status every 5-6msec */
5715 usleep_range(5000, 6000);
5716 reg
= rd32(&pf
->hw
, I40E_PFQF_CTL_1
);
5717 if (!(reg
& I40E_PFQF_CTL_1_CLEARFDTABLE_MASK
))
5719 } while (flush_wait_retry
--);
5720 if (reg
& I40E_PFQF_CTL_1_CLEARFDTABLE_MASK
) {
5721 dev_warn(&pf
->pdev
->dev
, "FD table did not flush, needs more time\n");
5723 /* replay sideband filters */
5724 i40e_fdir_filter_restore(pf
->vsi
[pf
->lan_vsi
]);
5726 pf
->flags
|= I40E_FLAG_FD_ATR_ENABLED
;
5727 clear_bit(__I40E_FD_FLUSH_REQUESTED
, &pf
->state
);
5728 if (I40E_DEBUG_FD
& pf
->hw
.debug_mask
)
5729 dev_info(&pf
->pdev
->dev
, "FD Filter table flushed and FD-SB replayed.\n");
5735 * i40e_get_current_atr_count - Get the count of total FD ATR filters programmed
5736 * @pf: board private structure
5738 u32
i40e_get_current_atr_cnt(struct i40e_pf
*pf
)
5740 return i40e_get_current_fd_count(pf
) - pf
->fdir_pf_active_filters
;
5743 /* We can see up to 256 filter programming desc in transit if the filters are
5744 * being applied really fast; before we see the first
5745 * filter miss error on Rx queue 0. Accumulating enough error messages before
5746 * reacting will make sure we don't cause flush too often.
5748 #define I40E_MAX_FD_PROGRAM_ERROR 256
5751 * i40e_fdir_reinit_subtask - Worker thread to reinit FDIR filter table
5752 * @pf: board private structure
5754 static void i40e_fdir_reinit_subtask(struct i40e_pf
*pf
)
5757 /* if interface is down do nothing */
5758 if (test_bit(__I40E_DOWN
, &pf
->state
))
5761 if (!(pf
->flags
& (I40E_FLAG_FD_SB_ENABLED
| I40E_FLAG_FD_ATR_ENABLED
)))
5764 if (test_bit(__I40E_FD_FLUSH_REQUESTED
, &pf
->state
))
5765 i40e_fdir_flush_and_replay(pf
);
5767 i40e_fdir_check_and_reenable(pf
);
5772 * i40e_vsi_link_event - notify VSI of a link event
5773 * @vsi: vsi to be notified
5774 * @link_up: link up or down
5776 static void i40e_vsi_link_event(struct i40e_vsi
*vsi
, bool link_up
)
5778 if (!vsi
|| test_bit(__I40E_DOWN
, &vsi
->state
))
5781 switch (vsi
->type
) {
5786 if (!vsi
->netdev
|| !vsi
->netdev_registered
)
5790 netif_carrier_on(vsi
->netdev
);
5791 netif_tx_wake_all_queues(vsi
->netdev
);
5793 netif_carrier_off(vsi
->netdev
);
5794 netif_tx_stop_all_queues(vsi
->netdev
);
5798 case I40E_VSI_SRIOV
:
5799 case I40E_VSI_VMDQ2
:
5801 case I40E_VSI_MIRROR
:
5803 /* there is no notification for other VSIs */
5809 * i40e_veb_link_event - notify elements on the veb of a link event
5810 * @veb: veb to be notified
5811 * @link_up: link up or down
5813 static void i40e_veb_link_event(struct i40e_veb
*veb
, bool link_up
)
5818 if (!veb
|| !veb
->pf
)
5822 /* depth first... */
5823 for (i
= 0; i
< I40E_MAX_VEB
; i
++)
5824 if (pf
->veb
[i
] && (pf
->veb
[i
]->uplink_seid
== veb
->seid
))
5825 i40e_veb_link_event(pf
->veb
[i
], link_up
);
5827 /* ... now the local VSIs */
5828 for (i
= 0; i
< pf
->num_alloc_vsi
; i
++)
5829 if (pf
->vsi
[i
] && (pf
->vsi
[i
]->uplink_seid
== veb
->seid
))
5830 i40e_vsi_link_event(pf
->vsi
[i
], link_up
);
5834 * i40e_link_event - Update netif_carrier status
5835 * @pf: board private structure
5837 static void i40e_link_event(struct i40e_pf
*pf
)
5839 bool new_link
, old_link
;
5840 struct i40e_vsi
*vsi
= pf
->vsi
[pf
->lan_vsi
];
5841 u8 new_link_speed
, old_link_speed
;
5843 /* set this to force the get_link_status call to refresh state */
5844 pf
->hw
.phy
.get_link_info
= true;
5846 old_link
= (pf
->hw
.phy
.link_info_old
.link_info
& I40E_AQ_LINK_UP
);
5847 new_link
= i40e_get_link_status(&pf
->hw
);
5848 old_link_speed
= pf
->hw
.phy
.link_info_old
.link_speed
;
5849 new_link_speed
= pf
->hw
.phy
.link_info
.link_speed
;
5851 if (new_link
== old_link
&&
5852 new_link_speed
== old_link_speed
&&
5853 (test_bit(__I40E_DOWN
, &vsi
->state
) ||
5854 new_link
== netif_carrier_ok(vsi
->netdev
)))
5857 if (!test_bit(__I40E_DOWN
, &vsi
->state
))
5858 i40e_print_link_message(vsi
, new_link
);
5860 /* Notify the base of the switch tree connected to
5861 * the link. Floating VEBs are not notified.
5863 if (pf
->lan_veb
!= I40E_NO_VEB
&& pf
->veb
[pf
->lan_veb
])
5864 i40e_veb_link_event(pf
->veb
[pf
->lan_veb
], new_link
);
5866 i40e_vsi_link_event(vsi
, new_link
);
5869 i40e_vc_notify_link_state(pf
);
5871 if (pf
->flags
& I40E_FLAG_PTP
)
5872 i40e_ptp_set_increment(pf
);
5876 * i40e_watchdog_subtask - periodic checks not using event driven response
5877 * @pf: board private structure
5879 static void i40e_watchdog_subtask(struct i40e_pf
*pf
)
5883 /* if interface is down do nothing */
5884 if (test_bit(__I40E_DOWN
, &pf
->state
) ||
5885 test_bit(__I40E_CONFIG_BUSY
, &pf
->state
))
5888 /* make sure we don't do these things too often */
5889 if (time_before(jiffies
, (pf
->service_timer_previous
+
5890 pf
->service_timer_period
)))
5892 pf
->service_timer_previous
= jiffies
;
5894 i40e_link_event(pf
);
5896 /* Update the stats for active netdevs so the network stack
5897 * can look at updated numbers whenever it cares to
5899 for (i
= 0; i
< pf
->num_alloc_vsi
; i
++)
5900 if (pf
->vsi
[i
] && pf
->vsi
[i
]->netdev
)
5901 i40e_update_stats(pf
->vsi
[i
]);
5903 if (pf
->flags
& I40E_FLAG_VEB_STATS_ENABLED
) {
5904 /* Update the stats for the active switching components */
5905 for (i
= 0; i
< I40E_MAX_VEB
; i
++)
5907 i40e_update_veb_stats(pf
->veb
[i
]);
5910 i40e_ptp_rx_hang(pf
->vsi
[pf
->lan_vsi
]);
5914 * i40e_reset_subtask - Set up for resetting the device and driver
5915 * @pf: board private structure
5917 static void i40e_reset_subtask(struct i40e_pf
*pf
)
5919 u32 reset_flags
= 0;
5922 if (test_bit(__I40E_REINIT_REQUESTED
, &pf
->state
)) {
5923 reset_flags
|= BIT_ULL(__I40E_REINIT_REQUESTED
);
5924 clear_bit(__I40E_REINIT_REQUESTED
, &pf
->state
);
5926 if (test_bit(__I40E_PF_RESET_REQUESTED
, &pf
->state
)) {
5927 reset_flags
|= BIT_ULL(__I40E_PF_RESET_REQUESTED
);
5928 clear_bit(__I40E_PF_RESET_REQUESTED
, &pf
->state
);
5930 if (test_bit(__I40E_CORE_RESET_REQUESTED
, &pf
->state
)) {
5931 reset_flags
|= BIT_ULL(__I40E_CORE_RESET_REQUESTED
);
5932 clear_bit(__I40E_CORE_RESET_REQUESTED
, &pf
->state
);
5934 if (test_bit(__I40E_GLOBAL_RESET_REQUESTED
, &pf
->state
)) {
5935 reset_flags
|= BIT_ULL(__I40E_GLOBAL_RESET_REQUESTED
);
5936 clear_bit(__I40E_GLOBAL_RESET_REQUESTED
, &pf
->state
);
5938 if (test_bit(__I40E_DOWN_REQUESTED
, &pf
->state
)) {
5939 reset_flags
|= BIT_ULL(__I40E_DOWN_REQUESTED
);
5940 clear_bit(__I40E_DOWN_REQUESTED
, &pf
->state
);
5943 /* If there's a recovery already waiting, it takes
5944 * precedence before starting a new reset sequence.
5946 if (test_bit(__I40E_RESET_INTR_RECEIVED
, &pf
->state
)) {
5947 i40e_handle_reset_warning(pf
);
5951 /* If we're already down or resetting, just bail */
5953 !test_bit(__I40E_DOWN
, &pf
->state
) &&
5954 !test_bit(__I40E_CONFIG_BUSY
, &pf
->state
))
5955 i40e_do_reset(pf
, reset_flags
);
5962 * i40e_handle_link_event - Handle link event
5963 * @pf: board private structure
5964 * @e: event info posted on ARQ
5966 static void i40e_handle_link_event(struct i40e_pf
*pf
,
5967 struct i40e_arq_event_info
*e
)
5969 struct i40e_hw
*hw
= &pf
->hw
;
5970 struct i40e_aqc_get_link_status
*status
=
5971 (struct i40e_aqc_get_link_status
*)&e
->desc
.params
.raw
;
5973 /* save off old link status information */
5974 hw
->phy
.link_info_old
= hw
->phy
.link_info
;
5976 /* Do a new status request to re-enable LSE reporting
5977 * and load new status information into the hw struct
5978 * This completely ignores any state information
5979 * in the ARQ event info, instead choosing to always
5980 * issue the AQ update link status command.
5982 i40e_link_event(pf
);
5984 /* check for unqualified module, if link is down */
5985 if ((status
->link_info
& I40E_AQ_MEDIA_AVAILABLE
) &&
5986 (!(status
->an_info
& I40E_AQ_QUALIFIED_MODULE
)) &&
5987 (!(status
->link_info
& I40E_AQ_LINK_UP
)))
5988 dev_err(&pf
->pdev
->dev
,
5989 "The driver failed to link because an unqualified module was detected.\n");
5993 * i40e_clean_adminq_subtask - Clean the AdminQ rings
5994 * @pf: board private structure
5996 static void i40e_clean_adminq_subtask(struct i40e_pf
*pf
)
5998 struct i40e_arq_event_info event
;
5999 struct i40e_hw
*hw
= &pf
->hw
;
6006 /* Do not run clean AQ when PF reset fails */
6007 if (test_bit(__I40E_RESET_FAILED
, &pf
->state
))
6010 /* check for error indications */
6011 val
= rd32(&pf
->hw
, pf
->hw
.aq
.arq
.len
);
6013 if (val
& I40E_PF_ARQLEN_ARQVFE_MASK
) {
6014 dev_info(&pf
->pdev
->dev
, "ARQ VF Error detected\n");
6015 val
&= ~I40E_PF_ARQLEN_ARQVFE_MASK
;
6017 if (val
& I40E_PF_ARQLEN_ARQOVFL_MASK
) {
6018 dev_info(&pf
->pdev
->dev
, "ARQ Overflow Error detected\n");
6019 val
&= ~I40E_PF_ARQLEN_ARQOVFL_MASK
;
6021 if (val
& I40E_PF_ARQLEN_ARQCRIT_MASK
) {
6022 dev_info(&pf
->pdev
->dev
, "ARQ Critical Error detected\n");
6023 val
&= ~I40E_PF_ARQLEN_ARQCRIT_MASK
;
6026 wr32(&pf
->hw
, pf
->hw
.aq
.arq
.len
, val
);
6028 val
= rd32(&pf
->hw
, pf
->hw
.aq
.asq
.len
);
6030 if (val
& I40E_PF_ATQLEN_ATQVFE_MASK
) {
6031 dev_info(&pf
->pdev
->dev
, "ASQ VF Error detected\n");
6032 val
&= ~I40E_PF_ATQLEN_ATQVFE_MASK
;
6034 if (val
& I40E_PF_ATQLEN_ATQOVFL_MASK
) {
6035 dev_info(&pf
->pdev
->dev
, "ASQ Overflow Error detected\n");
6036 val
&= ~I40E_PF_ATQLEN_ATQOVFL_MASK
;
6038 if (val
& I40E_PF_ATQLEN_ATQCRIT_MASK
) {
6039 dev_info(&pf
->pdev
->dev
, "ASQ Critical Error detected\n");
6040 val
&= ~I40E_PF_ATQLEN_ATQCRIT_MASK
;
6043 wr32(&pf
->hw
, pf
->hw
.aq
.asq
.len
, val
);
6045 event
.buf_len
= I40E_MAX_AQ_BUF_SIZE
;
6046 event
.msg_buf
= kzalloc(event
.buf_len
, GFP_KERNEL
);
6051 ret
= i40e_clean_arq_element(hw
, &event
, &pending
);
6052 if (ret
== I40E_ERR_ADMIN_QUEUE_NO_WORK
)
6055 dev_info(&pf
->pdev
->dev
, "ARQ event error %d\n", ret
);
6059 opcode
= le16_to_cpu(event
.desc
.opcode
);
6062 case i40e_aqc_opc_get_link_status
:
6063 i40e_handle_link_event(pf
, &event
);
6065 case i40e_aqc_opc_send_msg_to_pf
:
6066 ret
= i40e_vc_process_vf_msg(pf
,
6067 le16_to_cpu(event
.desc
.retval
),
6068 le32_to_cpu(event
.desc
.cookie_high
),
6069 le32_to_cpu(event
.desc
.cookie_low
),
6073 case i40e_aqc_opc_lldp_update_mib
:
6074 dev_dbg(&pf
->pdev
->dev
, "ARQ: Update LLDP MIB event received\n");
6075 #ifdef CONFIG_I40E_DCB
6077 ret
= i40e_handle_lldp_event(pf
, &event
);
6079 #endif /* CONFIG_I40E_DCB */
6081 case i40e_aqc_opc_event_lan_overflow
:
6082 dev_dbg(&pf
->pdev
->dev
, "ARQ LAN queue overflow event received\n");
6083 i40e_handle_lan_overflow_event(pf
, &event
);
6085 case i40e_aqc_opc_send_msg_to_peer
:
6086 dev_info(&pf
->pdev
->dev
, "ARQ: Msg from other pf\n");
6088 case i40e_aqc_opc_nvm_erase
:
6089 case i40e_aqc_opc_nvm_update
:
6090 i40e_debug(&pf
->hw
, I40E_DEBUG_NVM
, "ARQ NVM operation completed\n");
6093 dev_info(&pf
->pdev
->dev
,
6094 "ARQ Error: Unknown event 0x%04x received\n",
6098 } while (pending
&& (i
++ < pf
->adminq_work_limit
));
6100 clear_bit(__I40E_ADMINQ_EVENT_PENDING
, &pf
->state
);
6101 /* re-enable Admin queue interrupt cause */
6102 val
= rd32(hw
, I40E_PFINT_ICR0_ENA
);
6103 val
|= I40E_PFINT_ICR0_ENA_ADMINQ_MASK
;
6104 wr32(hw
, I40E_PFINT_ICR0_ENA
, val
);
6107 kfree(event
.msg_buf
);
6111 * i40e_verify_eeprom - make sure eeprom is good to use
6112 * @pf: board private structure
6114 static void i40e_verify_eeprom(struct i40e_pf
*pf
)
6118 err
= i40e_diag_eeprom_test(&pf
->hw
);
6120 /* retry in case of garbage read */
6121 err
= i40e_diag_eeprom_test(&pf
->hw
);
6123 dev_info(&pf
->pdev
->dev
, "eeprom check failed (%d), Tx/Rx traffic disabled\n",
6125 set_bit(__I40E_BAD_EEPROM
, &pf
->state
);
6129 if (!err
&& test_bit(__I40E_BAD_EEPROM
, &pf
->state
)) {
6130 dev_info(&pf
->pdev
->dev
, "eeprom check passed, Tx/Rx traffic enabled\n");
6131 clear_bit(__I40E_BAD_EEPROM
, &pf
->state
);
6136 * i40e_enable_pf_switch_lb
6137 * @pf: pointer to the PF structure
6139 * enable switch loop back or die - no point in a return value
6141 static void i40e_enable_pf_switch_lb(struct i40e_pf
*pf
)
6143 struct i40e_vsi
*vsi
= pf
->vsi
[pf
->lan_vsi
];
6144 struct i40e_vsi_context ctxt
;
6147 ctxt
.seid
= pf
->main_vsi_seid
;
6148 ctxt
.pf_num
= pf
->hw
.pf_id
;
6150 ret
= i40e_aq_get_vsi_params(&pf
->hw
, &ctxt
, NULL
);
6152 dev_info(&pf
->pdev
->dev
,
6153 "couldn't get PF vsi config, err %s aq_err %s\n",
6154 i40e_stat_str(&pf
->hw
, ret
),
6155 i40e_aq_str(&pf
->hw
, pf
->hw
.aq
.asq_last_status
));
6158 ctxt
.flags
= I40E_AQ_VSI_TYPE_PF
;
6159 ctxt
.info
.valid_sections
= cpu_to_le16(I40E_AQ_VSI_PROP_SWITCH_VALID
);
6160 ctxt
.info
.switch_id
|= cpu_to_le16(I40E_AQ_VSI_SW_ID_FLAG_ALLOW_LB
);
6162 ret
= i40e_aq_update_vsi_params(&vsi
->back
->hw
, &ctxt
, NULL
);
6164 dev_info(&pf
->pdev
->dev
,
6165 "update vsi switch failed, err %s aq_err %s\n",
6166 i40e_stat_str(&pf
->hw
, ret
),
6167 i40e_aq_str(&pf
->hw
, pf
->hw
.aq
.asq_last_status
));
6172 * i40e_disable_pf_switch_lb
6173 * @pf: pointer to the PF structure
6175 * disable switch loop back or die - no point in a return value
6177 static void i40e_disable_pf_switch_lb(struct i40e_pf
*pf
)
6179 struct i40e_vsi
*vsi
= pf
->vsi
[pf
->lan_vsi
];
6180 struct i40e_vsi_context ctxt
;
6183 ctxt
.seid
= pf
->main_vsi_seid
;
6184 ctxt
.pf_num
= pf
->hw
.pf_id
;
6186 ret
= i40e_aq_get_vsi_params(&pf
->hw
, &ctxt
, NULL
);
6188 dev_info(&pf
->pdev
->dev
,
6189 "couldn't get PF vsi config, err %s aq_err %s\n",
6190 i40e_stat_str(&pf
->hw
, ret
),
6191 i40e_aq_str(&pf
->hw
, pf
->hw
.aq
.asq_last_status
));
6194 ctxt
.flags
= I40E_AQ_VSI_TYPE_PF
;
6195 ctxt
.info
.valid_sections
= cpu_to_le16(I40E_AQ_VSI_PROP_SWITCH_VALID
);
6196 ctxt
.info
.switch_id
&= ~cpu_to_le16(I40E_AQ_VSI_SW_ID_FLAG_ALLOW_LB
);
6198 ret
= i40e_aq_update_vsi_params(&vsi
->back
->hw
, &ctxt
, NULL
);
6200 dev_info(&pf
->pdev
->dev
,
6201 "update vsi switch failed, err %s aq_err %s\n",
6202 i40e_stat_str(&pf
->hw
, ret
),
6203 i40e_aq_str(&pf
->hw
, pf
->hw
.aq
.asq_last_status
));
6208 * i40e_config_bridge_mode - Configure the HW bridge mode
6209 * @veb: pointer to the bridge instance
6211 * Configure the loop back mode for the LAN VSI that is downlink to the
6212 * specified HW bridge instance. It is expected this function is called
6213 * when a new HW bridge is instantiated.
6215 static void i40e_config_bridge_mode(struct i40e_veb
*veb
)
6217 struct i40e_pf
*pf
= veb
->pf
;
6219 dev_info(&pf
->pdev
->dev
, "enabling bridge mode: %s\n",
6220 veb
->bridge_mode
== BRIDGE_MODE_VEPA
? "VEPA" : "VEB");
6221 if (veb
->bridge_mode
& BRIDGE_MODE_VEPA
)
6222 i40e_disable_pf_switch_lb(pf
);
6224 i40e_enable_pf_switch_lb(pf
);
6228 * i40e_reconstitute_veb - rebuild the VEB and anything connected to it
6229 * @veb: pointer to the VEB instance
6231 * This is a recursive function that first builds the attached VSIs then
6232 * recurses in to build the next layer of VEB. We track the connections
6233 * through our own index numbers because the seid's from the HW could
6234 * change across the reset.
6236 static int i40e_reconstitute_veb(struct i40e_veb
*veb
)
6238 struct i40e_vsi
*ctl_vsi
= NULL
;
6239 struct i40e_pf
*pf
= veb
->pf
;
6243 /* build VSI that owns this VEB, temporarily attached to base VEB */
6244 for (v
= 0; v
< pf
->num_alloc_vsi
&& !ctl_vsi
; v
++) {
6246 pf
->vsi
[v
]->veb_idx
== veb
->idx
&&
6247 pf
->vsi
[v
]->flags
& I40E_VSI_FLAG_VEB_OWNER
) {
6248 ctl_vsi
= pf
->vsi
[v
];
6253 dev_info(&pf
->pdev
->dev
,
6254 "missing owner VSI for veb_idx %d\n", veb
->idx
);
6256 goto end_reconstitute
;
6258 if (ctl_vsi
!= pf
->vsi
[pf
->lan_vsi
])
6259 ctl_vsi
->uplink_seid
= pf
->vsi
[pf
->lan_vsi
]->uplink_seid
;
6260 ret
= i40e_add_vsi(ctl_vsi
);
6262 dev_info(&pf
->pdev
->dev
,
6263 "rebuild of veb_idx %d owner VSI failed: %d\n",
6265 goto end_reconstitute
;
6267 i40e_vsi_reset_stats(ctl_vsi
);
6269 /* create the VEB in the switch and move the VSI onto the VEB */
6270 ret
= i40e_add_veb(veb
, ctl_vsi
);
6272 goto end_reconstitute
;
6274 if (pf
->flags
& I40E_FLAG_VEB_MODE_ENABLED
)
6275 veb
->bridge_mode
= BRIDGE_MODE_VEB
;
6277 veb
->bridge_mode
= BRIDGE_MODE_VEPA
;
6278 i40e_config_bridge_mode(veb
);
6280 /* create the remaining VSIs attached to this VEB */
6281 for (v
= 0; v
< pf
->num_alloc_vsi
; v
++) {
6282 if (!pf
->vsi
[v
] || pf
->vsi
[v
] == ctl_vsi
)
6285 if (pf
->vsi
[v
]->veb_idx
== veb
->idx
) {
6286 struct i40e_vsi
*vsi
= pf
->vsi
[v
];
6287 vsi
->uplink_seid
= veb
->seid
;
6288 ret
= i40e_add_vsi(vsi
);
6290 dev_info(&pf
->pdev
->dev
,
6291 "rebuild of vsi_idx %d failed: %d\n",
6293 goto end_reconstitute
;
6295 i40e_vsi_reset_stats(vsi
);
6299 /* create any VEBs attached to this VEB - RECURSION */
6300 for (veb_idx
= 0; veb_idx
< I40E_MAX_VEB
; veb_idx
++) {
6301 if (pf
->veb
[veb_idx
] && pf
->veb
[veb_idx
]->veb_idx
== veb
->idx
) {
6302 pf
->veb
[veb_idx
]->uplink_seid
= veb
->seid
;
6303 ret
= i40e_reconstitute_veb(pf
->veb
[veb_idx
]);
6314 * i40e_get_capabilities - get info about the HW
6315 * @pf: the PF struct
6317 static int i40e_get_capabilities(struct i40e_pf
*pf
)
6319 struct i40e_aqc_list_capabilities_element_resp
*cap_buf
;
6324 buf_len
= 40 * sizeof(struct i40e_aqc_list_capabilities_element_resp
);
6326 cap_buf
= kzalloc(buf_len
, GFP_KERNEL
);
6330 /* this loads the data into the hw struct for us */
6331 err
= i40e_aq_discover_capabilities(&pf
->hw
, cap_buf
, buf_len
,
6333 i40e_aqc_opc_list_func_capabilities
,
6335 /* data loaded, buffer no longer needed */
6338 if (pf
->hw
.aq
.asq_last_status
== I40E_AQ_RC_ENOMEM
) {
6339 /* retry with a larger buffer */
6340 buf_len
= data_size
;
6341 } else if (pf
->hw
.aq
.asq_last_status
!= I40E_AQ_RC_OK
) {
6342 dev_info(&pf
->pdev
->dev
,
6343 "capability discovery failed, err %s aq_err %s\n",
6344 i40e_stat_str(&pf
->hw
, err
),
6345 i40e_aq_str(&pf
->hw
,
6346 pf
->hw
.aq
.asq_last_status
));
6351 if (((pf
->hw
.aq
.fw_maj_ver
== 2) && (pf
->hw
.aq
.fw_min_ver
< 22)) ||
6352 (pf
->hw
.aq
.fw_maj_ver
< 2)) {
6353 pf
->hw
.func_caps
.num_msix_vectors
++;
6354 pf
->hw
.func_caps
.num_msix_vectors_vf
++;
6357 if (pf
->hw
.debug_mask
& I40E_DEBUG_USER
)
6358 dev_info(&pf
->pdev
->dev
,
6359 "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",
6360 pf
->hw
.pf_id
, pf
->hw
.func_caps
.num_vfs
,
6361 pf
->hw
.func_caps
.num_msix_vectors
,
6362 pf
->hw
.func_caps
.num_msix_vectors_vf
,
6363 pf
->hw
.func_caps
.fd_filters_guaranteed
,
6364 pf
->hw
.func_caps
.fd_filters_best_effort
,
6365 pf
->hw
.func_caps
.num_tx_qp
,
6366 pf
->hw
.func_caps
.num_vsis
);
6368 #define DEF_NUM_VSI (1 + (pf->hw.func_caps.fcoe ? 1 : 0) \
6369 + pf->hw.func_caps.num_vfs)
6370 if (pf
->hw
.revision_id
== 0 && (DEF_NUM_VSI
> pf
->hw
.func_caps
.num_vsis
)) {
6371 dev_info(&pf
->pdev
->dev
,
6372 "got num_vsis %d, setting num_vsis to %d\n",
6373 pf
->hw
.func_caps
.num_vsis
, DEF_NUM_VSI
);
6374 pf
->hw
.func_caps
.num_vsis
= DEF_NUM_VSI
;
6380 static int i40e_vsi_clear(struct i40e_vsi
*vsi
);
6383 * i40e_fdir_sb_setup - initialize the Flow Director resources for Sideband
6384 * @pf: board private structure
6386 static void i40e_fdir_sb_setup(struct i40e_pf
*pf
)
6388 struct i40e_vsi
*vsi
;
6391 /* quick workaround for an NVM issue that leaves a critical register
6394 if (!rd32(&pf
->hw
, I40E_GLQF_HKEY(0))) {
6395 static const u32 hkey
[] = {
6396 0xe640d33f, 0xcdfe98ab, 0x73fa7161, 0x0d7a7d36,
6397 0xeacb7d61, 0xaa4f05b6, 0x9c5c89ed, 0xfc425ddb,
6398 0xa4654832, 0xfc7461d4, 0x8f827619, 0xf5c63c21,
6401 for (i
= 0; i
<= I40E_GLQF_HKEY_MAX_INDEX
; i
++)
6402 wr32(&pf
->hw
, I40E_GLQF_HKEY(i
), hkey
[i
]);
6405 if (!(pf
->flags
& I40E_FLAG_FD_SB_ENABLED
))
6408 /* find existing VSI and see if it needs configuring */
6410 for (i
= 0; i
< pf
->num_alloc_vsi
; i
++) {
6411 if (pf
->vsi
[i
] && pf
->vsi
[i
]->type
== I40E_VSI_FDIR
) {
6417 /* create a new VSI if none exists */
6419 vsi
= i40e_vsi_setup(pf
, I40E_VSI_FDIR
,
6420 pf
->vsi
[pf
->lan_vsi
]->seid
, 0);
6422 dev_info(&pf
->pdev
->dev
, "Couldn't create FDir VSI\n");
6423 pf
->flags
&= ~I40E_FLAG_FD_SB_ENABLED
;
6428 i40e_vsi_setup_irqhandler(vsi
, i40e_fdir_clean_ring
);
6432 * i40e_fdir_teardown - release the Flow Director resources
6433 * @pf: board private structure
6435 static void i40e_fdir_teardown(struct i40e_pf
*pf
)
6439 i40e_fdir_filter_exit(pf
);
6440 for (i
= 0; i
< pf
->num_alloc_vsi
; i
++) {
6441 if (pf
->vsi
[i
] && pf
->vsi
[i
]->type
== I40E_VSI_FDIR
) {
6442 i40e_vsi_release(pf
->vsi
[i
]);
6449 * i40e_prep_for_reset - prep for the core to reset
6450 * @pf: board private structure
6452 * Close up the VFs and other things in prep for PF Reset.
6454 static void i40e_prep_for_reset(struct i40e_pf
*pf
)
6456 struct i40e_hw
*hw
= &pf
->hw
;
6457 i40e_status ret
= 0;
6460 clear_bit(__I40E_RESET_INTR_RECEIVED
, &pf
->state
);
6461 if (test_and_set_bit(__I40E_RESET_RECOVERY_PENDING
, &pf
->state
))
6464 dev_dbg(&pf
->pdev
->dev
, "Tearing down internal switch for reset\n");
6466 /* quiesce the VSIs and their queues that are not already DOWN */
6467 i40e_pf_quiesce_all_vsi(pf
);
6469 for (v
= 0; v
< pf
->num_alloc_vsi
; v
++) {
6471 pf
->vsi
[v
]->seid
= 0;
6474 i40e_shutdown_adminq(&pf
->hw
);
6476 /* call shutdown HMC */
6477 if (hw
->hmc
.hmc_obj
) {
6478 ret
= i40e_shutdown_lan_hmc(hw
);
6480 dev_warn(&pf
->pdev
->dev
,
6481 "shutdown_lan_hmc failed: %d\n", ret
);
6486 * i40e_send_version - update firmware with driver version
6489 static void i40e_send_version(struct i40e_pf
*pf
)
6491 struct i40e_driver_version dv
;
6493 dv
.major_version
= DRV_VERSION_MAJOR
;
6494 dv
.minor_version
= DRV_VERSION_MINOR
;
6495 dv
.build_version
= DRV_VERSION_BUILD
;
6496 dv
.subbuild_version
= 0;
6497 strlcpy(dv
.driver_string
, DRV_VERSION
, sizeof(dv
.driver_string
));
6498 i40e_aq_send_driver_version(&pf
->hw
, &dv
, NULL
);
6502 * i40e_reset_and_rebuild - reset and rebuild using a saved config
6503 * @pf: board private structure
6504 * @reinit: if the Main VSI needs to re-initialized.
6506 static void i40e_reset_and_rebuild(struct i40e_pf
*pf
, bool reinit
)
6508 struct i40e_hw
*hw
= &pf
->hw
;
6509 u8 set_fc_aq_fail
= 0;
6513 /* Now we wait for GRST to settle out.
6514 * We don't have to delete the VEBs or VSIs from the hw switch
6515 * because the reset will make them disappear.
6517 ret
= i40e_pf_reset(hw
);
6519 dev_info(&pf
->pdev
->dev
, "PF reset failed, %d\n", ret
);
6520 set_bit(__I40E_RESET_FAILED
, &pf
->state
);
6521 goto clear_recovery
;
6525 if (test_bit(__I40E_DOWN
, &pf
->state
))
6526 goto clear_recovery
;
6527 dev_dbg(&pf
->pdev
->dev
, "Rebuilding internal switch\n");
6529 /* rebuild the basics for the AdminQ, HMC, and initial HW switch */
6530 ret
= i40e_init_adminq(&pf
->hw
);
6532 dev_info(&pf
->pdev
->dev
, "Rebuild AdminQ failed, err %s aq_err %s\n",
6533 i40e_stat_str(&pf
->hw
, ret
),
6534 i40e_aq_str(&pf
->hw
, pf
->hw
.aq
.asq_last_status
));
6535 goto clear_recovery
;
6538 /* re-verify the eeprom if we just had an EMP reset */
6539 if (test_and_clear_bit(__I40E_EMP_RESET_INTR_RECEIVED
, &pf
->state
))
6540 i40e_verify_eeprom(pf
);
6542 i40e_clear_pxe_mode(hw
);
6543 ret
= i40e_get_capabilities(pf
);
6545 goto end_core_reset
;
6547 ret
= i40e_init_lan_hmc(hw
, hw
->func_caps
.num_tx_qp
,
6548 hw
->func_caps
.num_rx_qp
,
6549 pf
->fcoe_hmc_cntx_num
, pf
->fcoe_hmc_filt_num
);
6551 dev_info(&pf
->pdev
->dev
, "init_lan_hmc failed: %d\n", ret
);
6552 goto end_core_reset
;
6554 ret
= i40e_configure_lan_hmc(hw
, I40E_HMC_MODEL_DIRECT_ONLY
);
6556 dev_info(&pf
->pdev
->dev
, "configure_lan_hmc failed: %d\n", ret
);
6557 goto end_core_reset
;
6560 #ifdef CONFIG_I40E_DCB
6561 ret
= i40e_init_pf_dcb(pf
);
6563 dev_info(&pf
->pdev
->dev
, "DCB init failed %d, disabled\n", ret
);
6564 pf
->flags
&= ~I40E_FLAG_DCB_CAPABLE
;
6565 /* Continue without DCB enabled */
6567 #endif /* CONFIG_I40E_DCB */
6569 i40e_init_pf_fcoe(pf
);
6572 /* do basic switch setup */
6573 ret
= i40e_setup_pf_switch(pf
, reinit
);
6575 goto end_core_reset
;
6577 /* driver is only interested in link up/down and module qualification
6578 * reports from firmware
6580 ret
= i40e_aq_set_phy_int_mask(&pf
->hw
,
6581 I40E_AQ_EVENT_LINK_UPDOWN
|
6582 I40E_AQ_EVENT_MODULE_QUAL_FAIL
, NULL
);
6584 dev_info(&pf
->pdev
->dev
, "set phy mask fail, err %s aq_err %s\n",
6585 i40e_stat_str(&pf
->hw
, ret
),
6586 i40e_aq_str(&pf
->hw
, pf
->hw
.aq
.asq_last_status
));
6588 /* make sure our flow control settings are restored */
6589 ret
= i40e_set_fc(&pf
->hw
, &set_fc_aq_fail
, true);
6591 dev_info(&pf
->pdev
->dev
, "set fc fail, err %s aq_err %s\n",
6592 i40e_stat_str(&pf
->hw
, ret
),
6593 i40e_aq_str(&pf
->hw
, pf
->hw
.aq
.asq_last_status
));
6595 /* Rebuild the VSIs and VEBs that existed before reset.
6596 * They are still in our local switch element arrays, so only
6597 * need to rebuild the switch model in the HW.
6599 * If there were VEBs but the reconstitution failed, we'll try
6600 * try to recover minimal use by getting the basic PF VSI working.
6602 if (pf
->vsi
[pf
->lan_vsi
]->uplink_seid
!= pf
->mac_seid
) {
6603 dev_dbg(&pf
->pdev
->dev
, "attempting to rebuild switch\n");
6604 /* find the one VEB connected to the MAC, and find orphans */
6605 for (v
= 0; v
< I40E_MAX_VEB
; v
++) {
6609 if (pf
->veb
[v
]->uplink_seid
== pf
->mac_seid
||
6610 pf
->veb
[v
]->uplink_seid
== 0) {
6611 ret
= i40e_reconstitute_veb(pf
->veb
[v
]);
6616 /* If Main VEB failed, we're in deep doodoo,
6617 * so give up rebuilding the switch and set up
6618 * for minimal rebuild of PF VSI.
6619 * If orphan failed, we'll report the error
6620 * but try to keep going.
6622 if (pf
->veb
[v
]->uplink_seid
== pf
->mac_seid
) {
6623 dev_info(&pf
->pdev
->dev
,
6624 "rebuild of switch failed: %d, will try to set up simple PF connection\n",
6626 pf
->vsi
[pf
->lan_vsi
]->uplink_seid
6629 } else if (pf
->veb
[v
]->uplink_seid
== 0) {
6630 dev_info(&pf
->pdev
->dev
,
6631 "rebuild of orphan VEB failed: %d\n",
6638 if (pf
->vsi
[pf
->lan_vsi
]->uplink_seid
== pf
->mac_seid
) {
6639 dev_dbg(&pf
->pdev
->dev
, "attempting to rebuild PF VSI\n");
6640 /* no VEB, so rebuild only the Main VSI */
6641 ret
= i40e_add_vsi(pf
->vsi
[pf
->lan_vsi
]);
6643 dev_info(&pf
->pdev
->dev
,
6644 "rebuild of Main VSI failed: %d\n", ret
);
6645 goto end_core_reset
;
6649 if (((pf
->hw
.aq
.fw_maj_ver
== 4) && (pf
->hw
.aq
.fw_min_ver
< 33)) ||
6650 (pf
->hw
.aq
.fw_maj_ver
< 4)) {
6652 ret
= i40e_aq_set_link_restart_an(&pf
->hw
, true, NULL
);
6654 dev_info(&pf
->pdev
->dev
, "link restart failed, err %s aq_err %s\n",
6655 i40e_stat_str(&pf
->hw
, ret
),
6656 i40e_aq_str(&pf
->hw
,
6657 pf
->hw
.aq
.asq_last_status
));
6659 /* reinit the misc interrupt */
6660 if (pf
->flags
& I40E_FLAG_MSIX_ENABLED
)
6661 ret
= i40e_setup_misc_vector(pf
);
6663 /* restart the VSIs that were rebuilt and running before the reset */
6664 i40e_pf_unquiesce_all_vsi(pf
);
6666 if (pf
->num_alloc_vfs
) {
6667 for (v
= 0; v
< pf
->num_alloc_vfs
; v
++)
6668 i40e_reset_vf(&pf
->vf
[v
], true);
6671 /* tell the firmware that we're starting */
6672 i40e_send_version(pf
);
6675 clear_bit(__I40E_RESET_FAILED
, &pf
->state
);
6677 clear_bit(__I40E_RESET_RECOVERY_PENDING
, &pf
->state
);
6681 * i40e_handle_reset_warning - prep for the PF to reset, reset and rebuild
6682 * @pf: board private structure
6684 * Close up the VFs and other things in prep for a Core Reset,
6685 * then get ready to rebuild the world.
6687 static void i40e_handle_reset_warning(struct i40e_pf
*pf
)
6689 i40e_prep_for_reset(pf
);
6690 i40e_reset_and_rebuild(pf
, false);
6694 * i40e_handle_mdd_event
6695 * @pf: pointer to the PF structure
6697 * Called from the MDD irq handler to identify possibly malicious vfs
6699 static void i40e_handle_mdd_event(struct i40e_pf
*pf
)
6701 struct i40e_hw
*hw
= &pf
->hw
;
6702 bool mdd_detected
= false;
6703 bool pf_mdd_detected
= false;
6708 if (!test_bit(__I40E_MDD_EVENT_PENDING
, &pf
->state
))
6711 /* find what triggered the MDD event */
6712 reg
= rd32(hw
, I40E_GL_MDET_TX
);
6713 if (reg
& I40E_GL_MDET_TX_VALID_MASK
) {
6714 u8 pf_num
= (reg
& I40E_GL_MDET_TX_PF_NUM_MASK
) >>
6715 I40E_GL_MDET_TX_PF_NUM_SHIFT
;
6716 u16 vf_num
= (reg
& I40E_GL_MDET_TX_VF_NUM_MASK
) >>
6717 I40E_GL_MDET_TX_VF_NUM_SHIFT
;
6718 u8 event
= (reg
& I40E_GL_MDET_TX_EVENT_MASK
) >>
6719 I40E_GL_MDET_TX_EVENT_SHIFT
;
6720 u16 queue
= ((reg
& I40E_GL_MDET_TX_QUEUE_MASK
) >>
6721 I40E_GL_MDET_TX_QUEUE_SHIFT
) -
6722 pf
->hw
.func_caps
.base_queue
;
6723 if (netif_msg_tx_err(pf
))
6724 dev_info(&pf
->pdev
->dev
, "Malicious Driver Detection event 0x%02x on TX queue %d PF number 0x%02x VF number 0x%02x\n",
6725 event
, queue
, pf_num
, vf_num
);
6726 wr32(hw
, I40E_GL_MDET_TX
, 0xffffffff);
6727 mdd_detected
= true;
6729 reg
= rd32(hw
, I40E_GL_MDET_RX
);
6730 if (reg
& I40E_GL_MDET_RX_VALID_MASK
) {
6731 u8 func
= (reg
& I40E_GL_MDET_RX_FUNCTION_MASK
) >>
6732 I40E_GL_MDET_RX_FUNCTION_SHIFT
;
6733 u8 event
= (reg
& I40E_GL_MDET_RX_EVENT_MASK
) >>
6734 I40E_GL_MDET_RX_EVENT_SHIFT
;
6735 u16 queue
= ((reg
& I40E_GL_MDET_RX_QUEUE_MASK
) >>
6736 I40E_GL_MDET_RX_QUEUE_SHIFT
) -
6737 pf
->hw
.func_caps
.base_queue
;
6738 if (netif_msg_rx_err(pf
))
6739 dev_info(&pf
->pdev
->dev
, "Malicious Driver Detection event 0x%02x on RX queue %d of function 0x%02x\n",
6740 event
, queue
, func
);
6741 wr32(hw
, I40E_GL_MDET_RX
, 0xffffffff);
6742 mdd_detected
= true;
6746 reg
= rd32(hw
, I40E_PF_MDET_TX
);
6747 if (reg
& I40E_PF_MDET_TX_VALID_MASK
) {
6748 wr32(hw
, I40E_PF_MDET_TX
, 0xFFFF);
6749 dev_info(&pf
->pdev
->dev
, "TX driver issue detected, PF reset issued\n");
6750 pf_mdd_detected
= true;
6752 reg
= rd32(hw
, I40E_PF_MDET_RX
);
6753 if (reg
& I40E_PF_MDET_RX_VALID_MASK
) {
6754 wr32(hw
, I40E_PF_MDET_RX
, 0xFFFF);
6755 dev_info(&pf
->pdev
->dev
, "RX driver issue detected, PF reset issued\n");
6756 pf_mdd_detected
= true;
6758 /* Queue belongs to the PF, initiate a reset */
6759 if (pf_mdd_detected
) {
6760 set_bit(__I40E_PF_RESET_REQUESTED
, &pf
->state
);
6761 i40e_service_event_schedule(pf
);
6765 /* see if one of the VFs needs its hand slapped */
6766 for (i
= 0; i
< pf
->num_alloc_vfs
&& mdd_detected
; i
++) {
6768 reg
= rd32(hw
, I40E_VP_MDET_TX(i
));
6769 if (reg
& I40E_VP_MDET_TX_VALID_MASK
) {
6770 wr32(hw
, I40E_VP_MDET_TX(i
), 0xFFFF);
6771 vf
->num_mdd_events
++;
6772 dev_info(&pf
->pdev
->dev
, "TX driver issue detected on VF %d\n",
6776 reg
= rd32(hw
, I40E_VP_MDET_RX(i
));
6777 if (reg
& I40E_VP_MDET_RX_VALID_MASK
) {
6778 wr32(hw
, I40E_VP_MDET_RX(i
), 0xFFFF);
6779 vf
->num_mdd_events
++;
6780 dev_info(&pf
->pdev
->dev
, "RX driver issue detected on VF %d\n",
6784 if (vf
->num_mdd_events
> I40E_DEFAULT_NUM_MDD_EVENTS_ALLOWED
) {
6785 dev_info(&pf
->pdev
->dev
,
6786 "Too many MDD events on VF %d, disabled\n", i
);
6787 dev_info(&pf
->pdev
->dev
,
6788 "Use PF Control I/F to re-enable the VF\n");
6789 set_bit(I40E_VF_STAT_DISABLED
, &vf
->vf_states
);
6793 /* re-enable mdd interrupt cause */
6794 clear_bit(__I40E_MDD_EVENT_PENDING
, &pf
->state
);
6795 reg
= rd32(hw
, I40E_PFINT_ICR0_ENA
);
6796 reg
|= I40E_PFINT_ICR0_ENA_MAL_DETECT_MASK
;
6797 wr32(hw
, I40E_PFINT_ICR0_ENA
, reg
);
6801 #ifdef CONFIG_I40E_VXLAN
6803 * i40e_sync_vxlan_filters_subtask - Sync the VSI filter list with HW
6804 * @pf: board private structure
6806 static void i40e_sync_vxlan_filters_subtask(struct i40e_pf
*pf
)
6808 struct i40e_hw
*hw
= &pf
->hw
;
6813 if (!(pf
->flags
& I40E_FLAG_VXLAN_FILTER_SYNC
))
6816 pf
->flags
&= ~I40E_FLAG_VXLAN_FILTER_SYNC
;
6818 for (i
= 0; i
< I40E_MAX_PF_UDP_OFFLOAD_PORTS
; i
++) {
6819 if (pf
->pending_vxlan_bitmap
& BIT_ULL(i
)) {
6820 pf
->pending_vxlan_bitmap
&= ~BIT_ULL(i
);
6821 port
= pf
->vxlan_ports
[i
];
6823 ret
= i40e_aq_add_udp_tunnel(hw
, ntohs(port
),
6824 I40E_AQC_TUNNEL_TYPE_VXLAN
,
6827 ret
= i40e_aq_del_udp_tunnel(hw
, i
, NULL
);
6830 dev_info(&pf
->pdev
->dev
,
6831 "%s vxlan port %d, index %d failed, err %s aq_err %s\n",
6832 port
? "add" : "delete",
6834 i40e_stat_str(&pf
->hw
, ret
),
6835 i40e_aq_str(&pf
->hw
,
6836 pf
->hw
.aq
.asq_last_status
));
6837 pf
->vxlan_ports
[i
] = 0;
6845 * i40e_service_task - Run the driver's async subtasks
6846 * @work: pointer to work_struct containing our data
6848 static void i40e_service_task(struct work_struct
*work
)
6850 struct i40e_pf
*pf
= container_of(work
,
6853 unsigned long start_time
= jiffies
;
6855 /* don't bother with service tasks if a reset is in progress */
6856 if (test_bit(__I40E_RESET_RECOVERY_PENDING
, &pf
->state
)) {
6857 i40e_service_event_complete(pf
);
6861 i40e_detect_recover_hung(pf
);
6862 i40e_reset_subtask(pf
);
6863 i40e_handle_mdd_event(pf
);
6864 i40e_vc_process_vflr_event(pf
);
6865 i40e_watchdog_subtask(pf
);
6866 i40e_fdir_reinit_subtask(pf
);
6867 i40e_sync_filters_subtask(pf
);
6868 #ifdef CONFIG_I40E_VXLAN
6869 i40e_sync_vxlan_filters_subtask(pf
);
6871 i40e_clean_adminq_subtask(pf
);
6873 i40e_service_event_complete(pf
);
6875 /* If the tasks have taken longer than one timer cycle or there
6876 * is more work to be done, reschedule the service task now
6877 * rather than wait for the timer to tick again.
6879 if (time_after(jiffies
, (start_time
+ pf
->service_timer_period
)) ||
6880 test_bit(__I40E_ADMINQ_EVENT_PENDING
, &pf
->state
) ||
6881 test_bit(__I40E_MDD_EVENT_PENDING
, &pf
->state
) ||
6882 test_bit(__I40E_VFLR_EVENT_PENDING
, &pf
->state
))
6883 i40e_service_event_schedule(pf
);
6887 * i40e_service_timer - timer callback
6888 * @data: pointer to PF struct
6890 static void i40e_service_timer(unsigned long data
)
6892 struct i40e_pf
*pf
= (struct i40e_pf
*)data
;
6894 mod_timer(&pf
->service_timer
,
6895 round_jiffies(jiffies
+ pf
->service_timer_period
));
6896 i40e_service_event_schedule(pf
);
6900 * i40e_set_num_rings_in_vsi - Determine number of rings in the VSI
6901 * @vsi: the VSI being configured
6903 static int i40e_set_num_rings_in_vsi(struct i40e_vsi
*vsi
)
6905 struct i40e_pf
*pf
= vsi
->back
;
6907 switch (vsi
->type
) {
6909 vsi
->alloc_queue_pairs
= pf
->num_lan_qps
;
6910 vsi
->num_desc
= ALIGN(I40E_DEFAULT_NUM_DESCRIPTORS
,
6911 I40E_REQ_DESCRIPTOR_MULTIPLE
);
6912 if (pf
->flags
& I40E_FLAG_MSIX_ENABLED
)
6913 vsi
->num_q_vectors
= pf
->num_lan_msix
;
6915 vsi
->num_q_vectors
= 1;
6920 vsi
->alloc_queue_pairs
= 1;
6921 vsi
->num_desc
= ALIGN(I40E_FDIR_RING_COUNT
,
6922 I40E_REQ_DESCRIPTOR_MULTIPLE
);
6923 vsi
->num_q_vectors
= 1;
6926 case I40E_VSI_VMDQ2
:
6927 vsi
->alloc_queue_pairs
= pf
->num_vmdq_qps
;
6928 vsi
->num_desc
= ALIGN(I40E_DEFAULT_NUM_DESCRIPTORS
,
6929 I40E_REQ_DESCRIPTOR_MULTIPLE
);
6930 vsi
->num_q_vectors
= pf
->num_vmdq_msix
;
6933 case I40E_VSI_SRIOV
:
6934 vsi
->alloc_queue_pairs
= pf
->num_vf_qps
;
6935 vsi
->num_desc
= ALIGN(I40E_DEFAULT_NUM_DESCRIPTORS
,
6936 I40E_REQ_DESCRIPTOR_MULTIPLE
);
6941 vsi
->alloc_queue_pairs
= pf
->num_fcoe_qps
;
6942 vsi
->num_desc
= ALIGN(I40E_DEFAULT_NUM_DESCRIPTORS
,
6943 I40E_REQ_DESCRIPTOR_MULTIPLE
);
6944 vsi
->num_q_vectors
= pf
->num_fcoe_msix
;
6947 #endif /* I40E_FCOE */
6957 * i40e_vsi_alloc_arrays - Allocate queue and vector pointer arrays for the vsi
6958 * @type: VSI pointer
6959 * @alloc_qvectors: a bool to specify if q_vectors need to be allocated.
6961 * On error: returns error code (negative)
6962 * On success: returns 0
6964 static int i40e_vsi_alloc_arrays(struct i40e_vsi
*vsi
, bool alloc_qvectors
)
6969 /* allocate memory for both Tx and Rx ring pointers */
6970 size
= sizeof(struct i40e_ring
*) * vsi
->alloc_queue_pairs
* 2;
6971 vsi
->tx_rings
= kzalloc(size
, GFP_KERNEL
);
6974 vsi
->rx_rings
= &vsi
->tx_rings
[vsi
->alloc_queue_pairs
];
6976 if (alloc_qvectors
) {
6977 /* allocate memory for q_vector pointers */
6978 size
= sizeof(struct i40e_q_vector
*) * vsi
->num_q_vectors
;
6979 vsi
->q_vectors
= kzalloc(size
, GFP_KERNEL
);
6980 if (!vsi
->q_vectors
) {
6988 kfree(vsi
->tx_rings
);
6993 * i40e_vsi_mem_alloc - Allocates the next available struct vsi in the PF
6994 * @pf: board private structure
6995 * @type: type of VSI
6997 * On error: returns error code (negative)
6998 * On success: returns vsi index in PF (positive)
7000 static int i40e_vsi_mem_alloc(struct i40e_pf
*pf
, enum i40e_vsi_type type
)
7003 struct i40e_vsi
*vsi
;
7007 /* Need to protect the allocation of the VSIs at the PF level */
7008 mutex_lock(&pf
->switch_mutex
);
7010 /* VSI list may be fragmented if VSI creation/destruction has
7011 * been happening. We can afford to do a quick scan to look
7012 * for any free VSIs in the list.
7014 * find next empty vsi slot, looping back around if necessary
7017 while (i
< pf
->num_alloc_vsi
&& pf
->vsi
[i
])
7019 if (i
>= pf
->num_alloc_vsi
) {
7021 while (i
< pf
->next_vsi
&& pf
->vsi
[i
])
7025 if (i
< pf
->num_alloc_vsi
&& !pf
->vsi
[i
]) {
7026 vsi_idx
= i
; /* Found one! */
7029 goto unlock_pf
; /* out of VSI slots! */
7033 vsi
= kzalloc(sizeof(*vsi
), GFP_KERNEL
);
7040 set_bit(__I40E_DOWN
, &vsi
->state
);
7043 vsi
->rx_itr_setting
= pf
->rx_itr_default
;
7044 vsi
->tx_itr_setting
= pf
->tx_itr_default
;
7045 vsi
->rss_table_size
= (vsi
->type
== I40E_VSI_MAIN
) ?
7046 pf
->rss_table_size
: 64;
7047 vsi
->netdev_registered
= false;
7048 vsi
->work_limit
= I40E_DEFAULT_IRQ_WORK
;
7049 INIT_LIST_HEAD(&vsi
->mac_filter_list
);
7050 vsi
->irqs_ready
= false;
7052 ret
= i40e_set_num_rings_in_vsi(vsi
);
7056 ret
= i40e_vsi_alloc_arrays(vsi
, true);
7060 /* Setup default MSIX irq handler for VSI */
7061 i40e_vsi_setup_irqhandler(vsi
, i40e_msix_clean_rings
);
7063 pf
->vsi
[vsi_idx
] = vsi
;
7068 pf
->next_vsi
= i
- 1;
7071 mutex_unlock(&pf
->switch_mutex
);
7076 * i40e_vsi_free_arrays - Free queue and vector pointer arrays for the VSI
7077 * @type: VSI pointer
7078 * @free_qvectors: a bool to specify if q_vectors need to be freed.
7080 * On error: returns error code (negative)
7081 * On success: returns 0
7083 static void i40e_vsi_free_arrays(struct i40e_vsi
*vsi
, bool free_qvectors
)
7085 /* free the ring and vector containers */
7086 if (free_qvectors
) {
7087 kfree(vsi
->q_vectors
);
7088 vsi
->q_vectors
= NULL
;
7090 kfree(vsi
->tx_rings
);
7091 vsi
->tx_rings
= NULL
;
7092 vsi
->rx_rings
= NULL
;
7096 * i40e_vsi_clear - Deallocate the VSI provided
7097 * @vsi: the VSI being un-configured
7099 static int i40e_vsi_clear(struct i40e_vsi
*vsi
)
7110 mutex_lock(&pf
->switch_mutex
);
7111 if (!pf
->vsi
[vsi
->idx
]) {
7112 dev_err(&pf
->pdev
->dev
, "pf->vsi[%d] is NULL, just free vsi[%d](%p,type %d)\n",
7113 vsi
->idx
, vsi
->idx
, vsi
, vsi
->type
);
7117 if (pf
->vsi
[vsi
->idx
] != vsi
) {
7118 dev_err(&pf
->pdev
->dev
,
7119 "pf->vsi[%d](%p, type %d) != vsi[%d](%p,type %d): no free!\n",
7120 pf
->vsi
[vsi
->idx
]->idx
,
7122 pf
->vsi
[vsi
->idx
]->type
,
7123 vsi
->idx
, vsi
, vsi
->type
);
7127 /* updates the PF for this cleared vsi */
7128 i40e_put_lump(pf
->qp_pile
, vsi
->base_queue
, vsi
->idx
);
7129 i40e_put_lump(pf
->irq_pile
, vsi
->base_vector
, vsi
->idx
);
7131 i40e_vsi_free_arrays(vsi
, true);
7133 pf
->vsi
[vsi
->idx
] = NULL
;
7134 if (vsi
->idx
< pf
->next_vsi
)
7135 pf
->next_vsi
= vsi
->idx
;
7138 mutex_unlock(&pf
->switch_mutex
);
7146 * i40e_vsi_clear_rings - Deallocates the Rx and Tx rings for the provided VSI
7147 * @vsi: the VSI being cleaned
7149 static void i40e_vsi_clear_rings(struct i40e_vsi
*vsi
)
7153 if (vsi
->tx_rings
&& vsi
->tx_rings
[0]) {
7154 for (i
= 0; i
< vsi
->alloc_queue_pairs
; i
++) {
7155 kfree_rcu(vsi
->tx_rings
[i
], rcu
);
7156 vsi
->tx_rings
[i
] = NULL
;
7157 vsi
->rx_rings
[i
] = NULL
;
7163 * i40e_alloc_rings - Allocates the Rx and Tx rings for the provided VSI
7164 * @vsi: the VSI being configured
7166 static int i40e_alloc_rings(struct i40e_vsi
*vsi
)
7168 struct i40e_ring
*tx_ring
, *rx_ring
;
7169 struct i40e_pf
*pf
= vsi
->back
;
7172 /* Set basic values in the rings to be used later during open() */
7173 for (i
= 0; i
< vsi
->alloc_queue_pairs
; i
++) {
7174 /* allocate space for both Tx and Rx in one shot */
7175 tx_ring
= kzalloc(sizeof(struct i40e_ring
) * 2, GFP_KERNEL
);
7179 tx_ring
->queue_index
= i
;
7180 tx_ring
->reg_idx
= vsi
->base_queue
+ i
;
7181 tx_ring
->ring_active
= false;
7183 tx_ring
->netdev
= vsi
->netdev
;
7184 tx_ring
->dev
= &pf
->pdev
->dev
;
7185 tx_ring
->count
= vsi
->num_desc
;
7187 tx_ring
->dcb_tc
= 0;
7188 if (vsi
->back
->flags
& I40E_FLAG_WB_ON_ITR_CAPABLE
)
7189 tx_ring
->flags
= I40E_TXR_FLAGS_WB_ON_ITR
;
7190 if (vsi
->back
->flags
& I40E_FLAG_OUTER_UDP_CSUM_CAPABLE
)
7191 tx_ring
->flags
|= I40E_TXR_FLAGS_OUTER_UDP_CSUM
;
7192 vsi
->tx_rings
[i
] = tx_ring
;
7194 rx_ring
= &tx_ring
[1];
7195 rx_ring
->queue_index
= i
;
7196 rx_ring
->reg_idx
= vsi
->base_queue
+ i
;
7197 rx_ring
->ring_active
= false;
7199 rx_ring
->netdev
= vsi
->netdev
;
7200 rx_ring
->dev
= &pf
->pdev
->dev
;
7201 rx_ring
->count
= vsi
->num_desc
;
7203 rx_ring
->dcb_tc
= 0;
7204 if (pf
->flags
& I40E_FLAG_16BYTE_RX_DESC_ENABLED
)
7205 set_ring_16byte_desc_enabled(rx_ring
);
7207 clear_ring_16byte_desc_enabled(rx_ring
);
7208 vsi
->rx_rings
[i
] = rx_ring
;
7214 i40e_vsi_clear_rings(vsi
);
7219 * i40e_reserve_msix_vectors - Reserve MSI-X vectors in the kernel
7220 * @pf: board private structure
7221 * @vectors: the number of MSI-X vectors to request
7223 * Returns the number of vectors reserved, or error
7225 static int i40e_reserve_msix_vectors(struct i40e_pf
*pf
, int vectors
)
7227 vectors
= pci_enable_msix_range(pf
->pdev
, pf
->msix_entries
,
7228 I40E_MIN_MSIX
, vectors
);
7230 dev_info(&pf
->pdev
->dev
,
7231 "MSI-X vector reservation failed: %d\n", vectors
);
7239 * i40e_init_msix - Setup the MSIX capability
7240 * @pf: board private structure
7242 * Work with the OS to set up the MSIX vectors needed.
7244 * Returns the number of vectors reserved or negative on failure
7246 static int i40e_init_msix(struct i40e_pf
*pf
)
7248 struct i40e_hw
*hw
= &pf
->hw
;
7253 if (!(pf
->flags
& I40E_FLAG_MSIX_ENABLED
))
7256 /* The number of vectors we'll request will be comprised of:
7257 * - Add 1 for "other" cause for Admin Queue events, etc.
7258 * - The number of LAN queue pairs
7259 * - Queues being used for RSS.
7260 * We don't need as many as max_rss_size vectors.
7261 * use rss_size instead in the calculation since that
7262 * is governed by number of cpus in the system.
7263 * - assumes symmetric Tx/Rx pairing
7264 * - The number of VMDq pairs
7266 * - The number of FCOE qps.
7268 * Once we count this up, try the request.
7270 * If we can't get what we want, we'll simplify to nearly nothing
7271 * and try again. If that still fails, we punt.
7273 vectors_left
= hw
->func_caps
.num_msix_vectors
;
7276 /* reserve one vector for miscellaneous handler */
7282 /* reserve vectors for the main PF traffic queues */
7283 pf
->num_lan_msix
= min_t(int, num_online_cpus(), vectors_left
);
7284 vectors_left
-= pf
->num_lan_msix
;
7285 v_budget
+= pf
->num_lan_msix
;
7287 /* reserve one vector for sideband flow director */
7288 if (pf
->flags
& I40E_FLAG_FD_SB_ENABLED
) {
7293 pf
->flags
&= ~I40E_FLAG_FD_SB_ENABLED
;
7298 /* can we reserve enough for FCoE? */
7299 if (pf
->flags
& I40E_FLAG_FCOE_ENABLED
) {
7301 pf
->num_fcoe_msix
= 0;
7302 else if (vectors_left
>= pf
->num_fcoe_qps
)
7303 pf
->num_fcoe_msix
= pf
->num_fcoe_qps
;
7305 pf
->num_fcoe_msix
= 1;
7306 v_budget
+= pf
->num_fcoe_msix
;
7307 vectors_left
-= pf
->num_fcoe_msix
;
7311 /* any vectors left over go for VMDq support */
7312 if (pf
->flags
& I40E_FLAG_VMDQ_ENABLED
) {
7313 int vmdq_vecs_wanted
= pf
->num_vmdq_vsis
* pf
->num_vmdq_qps
;
7314 int vmdq_vecs
= min_t(int, vectors_left
, vmdq_vecs_wanted
);
7316 /* if we're short on vectors for what's desired, we limit
7317 * the queues per vmdq. If this is still more than are
7318 * available, the user will need to change the number of
7319 * queues/vectors used by the PF later with the ethtool
7322 if (vmdq_vecs
< vmdq_vecs_wanted
)
7323 pf
->num_vmdq_qps
= 1;
7324 pf
->num_vmdq_msix
= pf
->num_vmdq_qps
;
7326 v_budget
+= vmdq_vecs
;
7327 vectors_left
-= vmdq_vecs
;
7330 pf
->msix_entries
= kcalloc(v_budget
, sizeof(struct msix_entry
),
7332 if (!pf
->msix_entries
)
7335 for (i
= 0; i
< v_budget
; i
++)
7336 pf
->msix_entries
[i
].entry
= i
;
7337 v_actual
= i40e_reserve_msix_vectors(pf
, v_budget
);
7339 if (v_actual
!= v_budget
) {
7340 /* If we have limited resources, we will start with no vectors
7341 * for the special features and then allocate vectors to some
7342 * of these features based on the policy and at the end disable
7343 * the features that did not get any vectors.
7346 pf
->num_fcoe_qps
= 0;
7347 pf
->num_fcoe_msix
= 0;
7349 pf
->num_vmdq_msix
= 0;
7352 if (v_actual
< I40E_MIN_MSIX
) {
7353 pf
->flags
&= ~I40E_FLAG_MSIX_ENABLED
;
7354 kfree(pf
->msix_entries
);
7355 pf
->msix_entries
= NULL
;
7358 } else if (v_actual
== I40E_MIN_MSIX
) {
7359 /* Adjust for minimal MSIX use */
7360 pf
->num_vmdq_vsis
= 0;
7361 pf
->num_vmdq_qps
= 0;
7362 pf
->num_lan_qps
= 1;
7363 pf
->num_lan_msix
= 1;
7365 } else if (v_actual
!= v_budget
) {
7368 /* reserve the misc vector */
7371 /* Scale vector usage down */
7372 pf
->num_vmdq_msix
= 1; /* force VMDqs to only one vector */
7373 pf
->num_vmdq_vsis
= 1;
7374 pf
->num_vmdq_qps
= 1;
7375 pf
->flags
&= ~I40E_FLAG_FD_SB_ENABLED
;
7377 /* partition out the remaining vectors */
7380 pf
->num_lan_msix
= 1;
7384 /* give one vector to FCoE */
7385 if (pf
->flags
& I40E_FLAG_FCOE_ENABLED
) {
7386 pf
->num_lan_msix
= 1;
7387 pf
->num_fcoe_msix
= 1;
7390 pf
->num_lan_msix
= 2;
7395 /* give one vector to FCoE */
7396 if (pf
->flags
& I40E_FLAG_FCOE_ENABLED
) {
7397 pf
->num_fcoe_msix
= 1;
7401 /* give the rest to the PF */
7402 pf
->num_lan_msix
= min_t(int, vec
, pf
->num_lan_qps
);
7407 if ((pf
->flags
& I40E_FLAG_VMDQ_ENABLED
) &&
7408 (pf
->num_vmdq_msix
== 0)) {
7409 dev_info(&pf
->pdev
->dev
, "VMDq disabled, not enough MSI-X vectors\n");
7410 pf
->flags
&= ~I40E_FLAG_VMDQ_ENABLED
;
7414 if ((pf
->flags
& I40E_FLAG_FCOE_ENABLED
) && (pf
->num_fcoe_msix
== 0)) {
7415 dev_info(&pf
->pdev
->dev
, "FCOE disabled, not enough MSI-X vectors\n");
7416 pf
->flags
&= ~I40E_FLAG_FCOE_ENABLED
;
7423 * i40e_vsi_alloc_q_vector - Allocate memory for a single interrupt vector
7424 * @vsi: the VSI being configured
7425 * @v_idx: index of the vector in the vsi struct
7427 * We allocate one q_vector. If allocation fails we return -ENOMEM.
7429 static int i40e_vsi_alloc_q_vector(struct i40e_vsi
*vsi
, int v_idx
)
7431 struct i40e_q_vector
*q_vector
;
7433 /* allocate q_vector */
7434 q_vector
= kzalloc(sizeof(struct i40e_q_vector
), GFP_KERNEL
);
7438 q_vector
->vsi
= vsi
;
7439 q_vector
->v_idx
= v_idx
;
7440 cpumask_set_cpu(v_idx
, &q_vector
->affinity_mask
);
7442 netif_napi_add(vsi
->netdev
, &q_vector
->napi
,
7443 i40e_napi_poll
, NAPI_POLL_WEIGHT
);
7445 q_vector
->rx
.latency_range
= I40E_LOW_LATENCY
;
7446 q_vector
->tx
.latency_range
= I40E_LOW_LATENCY
;
7448 /* tie q_vector and vsi together */
7449 vsi
->q_vectors
[v_idx
] = q_vector
;
7455 * i40e_vsi_alloc_q_vectors - Allocate memory for interrupt vectors
7456 * @vsi: the VSI being configured
7458 * We allocate one q_vector per queue interrupt. If allocation fails we
7461 static int i40e_vsi_alloc_q_vectors(struct i40e_vsi
*vsi
)
7463 struct i40e_pf
*pf
= vsi
->back
;
7464 int v_idx
, num_q_vectors
;
7467 /* if not MSIX, give the one vector only to the LAN VSI */
7468 if (pf
->flags
& I40E_FLAG_MSIX_ENABLED
)
7469 num_q_vectors
= vsi
->num_q_vectors
;
7470 else if (vsi
== pf
->vsi
[pf
->lan_vsi
])
7475 for (v_idx
= 0; v_idx
< num_q_vectors
; v_idx
++) {
7476 err
= i40e_vsi_alloc_q_vector(vsi
, v_idx
);
7485 i40e_free_q_vector(vsi
, v_idx
);
7491 * i40e_init_interrupt_scheme - Determine proper interrupt scheme
7492 * @pf: board private structure to initialize
7494 static int i40e_init_interrupt_scheme(struct i40e_pf
*pf
)
7499 if (pf
->flags
& I40E_FLAG_MSIX_ENABLED
) {
7500 vectors
= i40e_init_msix(pf
);
7502 pf
->flags
&= ~(I40E_FLAG_MSIX_ENABLED
|
7504 I40E_FLAG_FCOE_ENABLED
|
7506 I40E_FLAG_RSS_ENABLED
|
7507 I40E_FLAG_DCB_CAPABLE
|
7508 I40E_FLAG_SRIOV_ENABLED
|
7509 I40E_FLAG_FD_SB_ENABLED
|
7510 I40E_FLAG_FD_ATR_ENABLED
|
7511 I40E_FLAG_VMDQ_ENABLED
);
7513 /* rework the queue expectations without MSIX */
7514 i40e_determine_queue_usage(pf
);
7518 if (!(pf
->flags
& I40E_FLAG_MSIX_ENABLED
) &&
7519 (pf
->flags
& I40E_FLAG_MSI_ENABLED
)) {
7520 dev_info(&pf
->pdev
->dev
, "MSI-X not available, trying MSI\n");
7521 vectors
= pci_enable_msi(pf
->pdev
);
7523 dev_info(&pf
->pdev
->dev
, "MSI init failed - %d\n",
7525 pf
->flags
&= ~I40E_FLAG_MSI_ENABLED
;
7527 vectors
= 1; /* one MSI or Legacy vector */
7530 if (!(pf
->flags
& (I40E_FLAG_MSIX_ENABLED
| I40E_FLAG_MSI_ENABLED
)))
7531 dev_info(&pf
->pdev
->dev
, "MSI-X and MSI not available, falling back to Legacy IRQ\n");
7533 /* set up vector assignment tracking */
7534 size
= sizeof(struct i40e_lump_tracking
) + (sizeof(u16
) * vectors
);
7535 pf
->irq_pile
= kzalloc(size
, GFP_KERNEL
);
7536 if (!pf
->irq_pile
) {
7537 dev_err(&pf
->pdev
->dev
, "error allocating irq_pile memory\n");
7540 pf
->irq_pile
->num_entries
= vectors
;
7541 pf
->irq_pile
->search_hint
= 0;
7543 /* track first vector for misc interrupts, ignore return */
7544 (void)i40e_get_lump(pf
, pf
->irq_pile
, 1, I40E_PILE_VALID_BIT
- 1);
7550 * i40e_setup_misc_vector - Setup the misc vector to handle non queue events
7551 * @pf: board private structure
7553 * This sets up the handler for MSIX 0, which is used to manage the
7554 * non-queue interrupts, e.g. AdminQ and errors. This is not used
7555 * when in MSI or Legacy interrupt mode.
7557 static int i40e_setup_misc_vector(struct i40e_pf
*pf
)
7559 struct i40e_hw
*hw
= &pf
->hw
;
7562 /* Only request the irq if this is the first time through, and
7563 * not when we're rebuilding after a Reset
7565 if (!test_bit(__I40E_RESET_RECOVERY_PENDING
, &pf
->state
)) {
7566 err
= request_irq(pf
->msix_entries
[0].vector
,
7567 i40e_intr
, 0, pf
->int_name
, pf
);
7569 dev_info(&pf
->pdev
->dev
,
7570 "request_irq for %s failed: %d\n",
7576 i40e_enable_misc_int_causes(pf
);
7578 /* associate no queues to the misc vector */
7579 wr32(hw
, I40E_PFINT_LNKLST0
, I40E_QUEUE_END_OF_LIST
);
7580 wr32(hw
, I40E_PFINT_ITR0(I40E_RX_ITR
), I40E_ITR_8K
);
7584 i40e_irq_dynamic_enable_icr0(pf
);
7590 * i40e_config_rss_aq - Prepare for RSS using AQ commands
7591 * @vsi: vsi structure
7592 * @seed: RSS hash seed
7594 static int i40e_config_rss_aq(struct i40e_vsi
*vsi
, const u8
*seed
)
7596 struct i40e_aqc_get_set_rss_key_data rss_key
;
7597 struct i40e_pf
*pf
= vsi
->back
;
7598 struct i40e_hw
*hw
= &pf
->hw
;
7599 bool pf_lut
= false;
7603 memset(&rss_key
, 0, sizeof(rss_key
));
7604 memcpy(&rss_key
, seed
, sizeof(rss_key
));
7606 rss_lut
= kzalloc(pf
->rss_table_size
, GFP_KERNEL
);
7610 /* Populate the LUT with max no. of queues in round robin fashion */
7611 for (i
= 0; i
< vsi
->rss_table_size
; i
++)
7612 rss_lut
[i
] = i
% vsi
->rss_size
;
7614 ret
= i40e_aq_set_rss_key(hw
, vsi
->id
, &rss_key
);
7616 dev_info(&pf
->pdev
->dev
,
7617 "Cannot set RSS key, err %s aq_err %s\n",
7618 i40e_stat_str(&pf
->hw
, ret
),
7619 i40e_aq_str(&pf
->hw
, pf
->hw
.aq
.asq_last_status
));
7620 goto config_rss_aq_out
;
7623 if (vsi
->type
== I40E_VSI_MAIN
)
7626 ret
= i40e_aq_set_rss_lut(hw
, vsi
->id
, pf_lut
, rss_lut
,
7627 vsi
->rss_table_size
);
7629 dev_info(&pf
->pdev
->dev
,
7630 "Cannot set RSS lut, err %s aq_err %s\n",
7631 i40e_stat_str(&pf
->hw
, ret
),
7632 i40e_aq_str(&pf
->hw
, pf
->hw
.aq
.asq_last_status
));
7640 * i40e_vsi_config_rss - Prepare for VSI(VMDq) RSS if used
7641 * @vsi: VSI structure
7643 static int i40e_vsi_config_rss(struct i40e_vsi
*vsi
)
7645 u8 seed
[I40E_HKEY_ARRAY_SIZE
];
7646 struct i40e_pf
*pf
= vsi
->back
;
7648 netdev_rss_key_fill((void *)seed
, I40E_HKEY_ARRAY_SIZE
);
7649 vsi
->rss_size
= min_t(int, pf
->rss_size
, vsi
->num_queue_pairs
);
7651 if (pf
->flags
& I40E_FLAG_RSS_AQ_CAPABLE
)
7652 return i40e_config_rss_aq(vsi
, seed
);
7658 * i40e_config_rss_reg - Prepare for RSS if used
7659 * @pf: board private structure
7660 * @seed: RSS hash seed
7662 static int i40e_config_rss_reg(struct i40e_pf
*pf
, const u8
*seed
)
7664 struct i40e_vsi
*vsi
= pf
->vsi
[pf
->lan_vsi
];
7665 struct i40e_hw
*hw
= &pf
->hw
;
7666 u32
*seed_dw
= (u32
*)seed
;
7667 u32 current_queue
= 0;
7671 /* Fill out hash function seed */
7672 for (i
= 0; i
<= I40E_PFQF_HKEY_MAX_INDEX
; i
++)
7673 wr32(hw
, I40E_PFQF_HKEY(i
), seed_dw
[i
]);
7675 for (i
= 0; i
<= I40E_PFQF_HLUT_MAX_INDEX
; i
++) {
7677 for (j
= 0; j
< 4; j
++) {
7678 if (current_queue
== vsi
->rss_size
)
7680 lut
|= ((current_queue
) << (8 * j
));
7683 wr32(&pf
->hw
, I40E_PFQF_HLUT(i
), lut
);
7691 * i40e_config_rss - Prepare for RSS if used
7692 * @pf: board private structure
7694 static int i40e_config_rss(struct i40e_pf
*pf
)
7696 struct i40e_vsi
*vsi
= pf
->vsi
[pf
->lan_vsi
];
7697 u8 seed
[I40E_HKEY_ARRAY_SIZE
];
7698 struct i40e_hw
*hw
= &pf
->hw
;
7702 netdev_rss_key_fill((void *)seed
, I40E_HKEY_ARRAY_SIZE
);
7704 /* By default we enable TCP/UDP with IPv4/IPv6 ptypes */
7705 hena
= (u64
)rd32(hw
, I40E_PFQF_HENA(0)) |
7706 ((u64
)rd32(hw
, I40E_PFQF_HENA(1)) << 32);
7707 hena
|= i40e_pf_get_default_rss_hena(pf
);
7709 wr32(hw
, I40E_PFQF_HENA(0), (u32
)hena
);
7710 wr32(hw
, I40E_PFQF_HENA(1), (u32
)(hena
>> 32));
7712 vsi
->rss_size
= min_t(int, pf
->rss_size
, vsi
->num_queue_pairs
);
7714 /* Determine the RSS table size based on the hardware capabilities */
7715 reg_val
= rd32(hw
, I40E_PFQF_CTL_0
);
7716 reg_val
= (pf
->rss_table_size
== 512) ?
7717 (reg_val
| I40E_PFQF_CTL_0_HASHLUTSIZE_512
) :
7718 (reg_val
& ~I40E_PFQF_CTL_0_HASHLUTSIZE_512
);
7719 wr32(hw
, I40E_PFQF_CTL_0
, reg_val
);
7721 if (pf
->flags
& I40E_FLAG_RSS_AQ_CAPABLE
)
7722 return i40e_config_rss_aq(pf
->vsi
[pf
->lan_vsi
], seed
);
7724 return i40e_config_rss_reg(pf
, seed
);
7728 * i40e_reconfig_rss_queues - change number of queues for rss and rebuild
7729 * @pf: board private structure
7730 * @queue_count: the requested queue count for rss.
7732 * returns 0 if rss is not enabled, if enabled returns the final rss queue
7733 * count which may be different from the requested queue count.
7735 int i40e_reconfig_rss_queues(struct i40e_pf
*pf
, int queue_count
)
7737 struct i40e_vsi
*vsi
= pf
->vsi
[pf
->lan_vsi
];
7740 if (!(pf
->flags
& I40E_FLAG_RSS_ENABLED
))
7743 new_rss_size
= min_t(int, queue_count
, pf
->rss_size_max
);
7745 if (queue_count
!= vsi
->num_queue_pairs
) {
7746 vsi
->req_queue_pairs
= queue_count
;
7747 i40e_prep_for_reset(pf
);
7749 pf
->rss_size
= new_rss_size
;
7751 i40e_reset_and_rebuild(pf
, true);
7752 i40e_config_rss(pf
);
7754 dev_info(&pf
->pdev
->dev
, "RSS count: %d\n", pf
->rss_size
);
7755 return pf
->rss_size
;
7759 * i40e_get_npar_bw_setting - Retrieve BW settings for this PF partition
7760 * @pf: board private structure
7762 i40e_status
i40e_get_npar_bw_setting(struct i40e_pf
*pf
)
7765 bool min_valid
, max_valid
;
7768 status
= i40e_read_bw_from_alt_ram(&pf
->hw
, &max_bw
, &min_bw
,
7769 &min_valid
, &max_valid
);
7773 pf
->npar_min_bw
= min_bw
;
7775 pf
->npar_max_bw
= max_bw
;
7782 * i40e_set_npar_bw_setting - Set BW settings for this PF partition
7783 * @pf: board private structure
7785 i40e_status
i40e_set_npar_bw_setting(struct i40e_pf
*pf
)
7787 struct i40e_aqc_configure_partition_bw_data bw_data
;
7790 /* Set the valid bit for this PF */
7791 bw_data
.pf_valid_bits
= cpu_to_le16(BIT(pf
->hw
.pf_id
));
7792 bw_data
.max_bw
[pf
->hw
.pf_id
] = pf
->npar_max_bw
& I40E_ALT_BW_VALUE_MASK
;
7793 bw_data
.min_bw
[pf
->hw
.pf_id
] = pf
->npar_min_bw
& I40E_ALT_BW_VALUE_MASK
;
7795 /* Set the new bandwidths */
7796 status
= i40e_aq_configure_partition_bw(&pf
->hw
, &bw_data
, NULL
);
7802 * i40e_commit_npar_bw_setting - Commit BW settings for this PF partition
7803 * @pf: board private structure
7805 i40e_status
i40e_commit_npar_bw_setting(struct i40e_pf
*pf
)
7807 /* Commit temporary BW setting to permanent NVM image */
7808 enum i40e_admin_queue_err last_aq_status
;
7812 if (pf
->hw
.partition_id
!= 1) {
7813 dev_info(&pf
->pdev
->dev
,
7814 "Commit BW only works on partition 1! This is partition %d",
7815 pf
->hw
.partition_id
);
7816 ret
= I40E_NOT_SUPPORTED
;
7820 /* Acquire NVM for read access */
7821 ret
= i40e_acquire_nvm(&pf
->hw
, I40E_RESOURCE_READ
);
7822 last_aq_status
= pf
->hw
.aq
.asq_last_status
;
7824 dev_info(&pf
->pdev
->dev
,
7825 "Cannot acquire NVM for read access, err %s aq_err %s\n",
7826 i40e_stat_str(&pf
->hw
, ret
),
7827 i40e_aq_str(&pf
->hw
, last_aq_status
));
7831 /* Read word 0x10 of NVM - SW compatibility word 1 */
7832 ret
= i40e_aq_read_nvm(&pf
->hw
,
7833 I40E_SR_NVM_CONTROL_WORD
,
7834 0x10, sizeof(nvm_word
), &nvm_word
,
7836 /* Save off last admin queue command status before releasing
7839 last_aq_status
= pf
->hw
.aq
.asq_last_status
;
7840 i40e_release_nvm(&pf
->hw
);
7842 dev_info(&pf
->pdev
->dev
, "NVM read error, err %s aq_err %s\n",
7843 i40e_stat_str(&pf
->hw
, ret
),
7844 i40e_aq_str(&pf
->hw
, last_aq_status
));
7848 /* Wait a bit for NVM release to complete */
7851 /* Acquire NVM for write access */
7852 ret
= i40e_acquire_nvm(&pf
->hw
, I40E_RESOURCE_WRITE
);
7853 last_aq_status
= pf
->hw
.aq
.asq_last_status
;
7855 dev_info(&pf
->pdev
->dev
,
7856 "Cannot acquire NVM for write access, err %s aq_err %s\n",
7857 i40e_stat_str(&pf
->hw
, ret
),
7858 i40e_aq_str(&pf
->hw
, last_aq_status
));
7861 /* Write it back out unchanged to initiate update NVM,
7862 * which will force a write of the shadow (alt) RAM to
7863 * the NVM - thus storing the bandwidth values permanently.
7865 ret
= i40e_aq_update_nvm(&pf
->hw
,
7866 I40E_SR_NVM_CONTROL_WORD
,
7867 0x10, sizeof(nvm_word
),
7868 &nvm_word
, true, NULL
);
7869 /* Save off last admin queue command status before releasing
7872 last_aq_status
= pf
->hw
.aq
.asq_last_status
;
7873 i40e_release_nvm(&pf
->hw
);
7875 dev_info(&pf
->pdev
->dev
,
7876 "BW settings NOT SAVED, err %s aq_err %s\n",
7877 i40e_stat_str(&pf
->hw
, ret
),
7878 i40e_aq_str(&pf
->hw
, last_aq_status
));
7885 * i40e_sw_init - Initialize general software structures (struct i40e_pf)
7886 * @pf: board private structure to initialize
7888 * i40e_sw_init initializes the Adapter private data structure.
7889 * Fields are initialized based on PCI device information and
7890 * OS network device settings (MTU size).
7892 static int i40e_sw_init(struct i40e_pf
*pf
)
7897 pf
->msg_enable
= netif_msg_init(I40E_DEFAULT_MSG_ENABLE
,
7898 (NETIF_MSG_DRV
|NETIF_MSG_PROBE
|NETIF_MSG_LINK
));
7899 pf
->hw
.debug_mask
= pf
->msg_enable
| I40E_DEBUG_DIAG
;
7900 if (debug
!= -1 && debug
!= I40E_DEFAULT_MSG_ENABLE
) {
7901 if (I40E_DEBUG_USER
& debug
)
7902 pf
->hw
.debug_mask
= debug
;
7903 pf
->msg_enable
= netif_msg_init((debug
& ~I40E_DEBUG_USER
),
7904 I40E_DEFAULT_MSG_ENABLE
);
7907 /* Set default capability flags */
7908 pf
->flags
= I40E_FLAG_RX_CSUM_ENABLED
|
7909 I40E_FLAG_MSI_ENABLED
|
7910 I40E_FLAG_MSIX_ENABLED
;
7912 if (iommu_present(&pci_bus_type
))
7913 pf
->flags
|= I40E_FLAG_RX_PS_ENABLED
;
7915 pf
->flags
|= I40E_FLAG_RX_1BUF_ENABLED
;
7917 /* Set default ITR */
7918 pf
->rx_itr_default
= I40E_ITR_DYNAMIC
| I40E_ITR_RX_DEF
;
7919 pf
->tx_itr_default
= I40E_ITR_DYNAMIC
| I40E_ITR_TX_DEF
;
7921 /* Depending on PF configurations, it is possible that the RSS
7922 * maximum might end up larger than the available queues
7924 pf
->rss_size_max
= BIT(pf
->hw
.func_caps
.rss_table_entry_width
);
7926 pf
->rss_table_size
= pf
->hw
.func_caps
.rss_table_size
;
7927 pf
->rss_size_max
= min_t(int, pf
->rss_size_max
,
7928 pf
->hw
.func_caps
.num_tx_qp
);
7929 if (pf
->hw
.func_caps
.rss
) {
7930 pf
->flags
|= I40E_FLAG_RSS_ENABLED
;
7931 pf
->rss_size
= min_t(int, pf
->rss_size_max
, num_online_cpus());
7934 /* MFP mode enabled */
7935 if (pf
->hw
.func_caps
.npar_enable
|| pf
->hw
.func_caps
.flex10_enable
) {
7936 pf
->flags
|= I40E_FLAG_MFP_ENABLED
;
7937 dev_info(&pf
->pdev
->dev
, "MFP mode Enabled\n");
7938 if (i40e_get_npar_bw_setting(pf
))
7939 dev_warn(&pf
->pdev
->dev
,
7940 "Could not get NPAR bw settings\n");
7942 dev_info(&pf
->pdev
->dev
,
7943 "Min BW = %8.8x, Max BW = %8.8x\n",
7944 pf
->npar_min_bw
, pf
->npar_max_bw
);
7947 /* FW/NVM is not yet fixed in this regard */
7948 if ((pf
->hw
.func_caps
.fd_filters_guaranteed
> 0) ||
7949 (pf
->hw
.func_caps
.fd_filters_best_effort
> 0)) {
7950 pf
->flags
|= I40E_FLAG_FD_ATR_ENABLED
;
7951 pf
->atr_sample_rate
= I40E_DEFAULT_ATR_SAMPLE_RATE
;
7952 if (!(pf
->flags
& I40E_FLAG_MFP_ENABLED
)) {
7953 pf
->flags
|= I40E_FLAG_FD_SB_ENABLED
;
7955 dev_info(&pf
->pdev
->dev
,
7956 "Flow Director Sideband mode Disabled in MFP mode\n");
7958 pf
->fdir_pf_filter_count
=
7959 pf
->hw
.func_caps
.fd_filters_guaranteed
;
7960 pf
->hw
.fdir_shared_filter_count
=
7961 pf
->hw
.func_caps
.fd_filters_best_effort
;
7964 if (pf
->hw
.func_caps
.vmdq
) {
7965 pf
->num_vmdq_vsis
= I40E_DEFAULT_NUM_VMDQ_VSI
;
7966 pf
->flags
|= I40E_FLAG_VMDQ_ENABLED
;
7970 i40e_init_pf_fcoe(pf
);
7972 #endif /* I40E_FCOE */
7973 #ifdef CONFIG_PCI_IOV
7974 if (pf
->hw
.func_caps
.num_vfs
&& pf
->hw
.partition_id
== 1) {
7975 pf
->num_vf_qps
= I40E_DEFAULT_QUEUES_PER_VF
;
7976 pf
->flags
|= I40E_FLAG_SRIOV_ENABLED
;
7977 pf
->num_req_vfs
= min_t(int,
7978 pf
->hw
.func_caps
.num_vfs
,
7981 #endif /* CONFIG_PCI_IOV */
7982 if (pf
->hw
.mac
.type
== I40E_MAC_X722
) {
7983 pf
->flags
|= I40E_FLAG_RSS_AQ_CAPABLE
|
7984 I40E_FLAG_128_QP_RSS_CAPABLE
|
7985 I40E_FLAG_HW_ATR_EVICT_CAPABLE
|
7986 I40E_FLAG_OUTER_UDP_CSUM_CAPABLE
|
7987 I40E_FLAG_WB_ON_ITR_CAPABLE
|
7988 I40E_FLAG_MULTIPLE_TCP_UDP_RSS_PCTYPE
;
7990 pf
->eeprom_version
= 0xDEAD;
7991 pf
->lan_veb
= I40E_NO_VEB
;
7992 pf
->lan_vsi
= I40E_NO_VSI
;
7994 /* By default FW has this off for performance reasons */
7995 pf
->flags
&= ~I40E_FLAG_VEB_STATS_ENABLED
;
7997 /* set up queue assignment tracking */
7998 size
= sizeof(struct i40e_lump_tracking
)
7999 + (sizeof(u16
) * pf
->hw
.func_caps
.num_tx_qp
);
8000 pf
->qp_pile
= kzalloc(size
, GFP_KERNEL
);
8005 pf
->qp_pile
->num_entries
= pf
->hw
.func_caps
.num_tx_qp
;
8006 pf
->qp_pile
->search_hint
= 0;
8008 pf
->tx_timeout_recovery_level
= 1;
8010 mutex_init(&pf
->switch_mutex
);
8012 /* If NPAR is enabled nudge the Tx scheduler */
8013 if (pf
->hw
.func_caps
.npar_enable
&& (!i40e_get_npar_bw_setting(pf
)))
8014 i40e_set_npar_bw_setting(pf
);
8021 * i40e_set_ntuple - set the ntuple feature flag and take action
8022 * @pf: board private structure to initialize
8023 * @features: the feature set that the stack is suggesting
8025 * returns a bool to indicate if reset needs to happen
8027 bool i40e_set_ntuple(struct i40e_pf
*pf
, netdev_features_t features
)
8029 bool need_reset
= false;
8031 /* Check if Flow Director n-tuple support was enabled or disabled. If
8032 * the state changed, we need to reset.
8034 if (features
& NETIF_F_NTUPLE
) {
8035 /* Enable filters and mark for reset */
8036 if (!(pf
->flags
& I40E_FLAG_FD_SB_ENABLED
))
8038 pf
->flags
|= I40E_FLAG_FD_SB_ENABLED
;
8040 /* turn off filters, mark for reset and clear SW filter list */
8041 if (pf
->flags
& I40E_FLAG_FD_SB_ENABLED
) {
8043 i40e_fdir_filter_exit(pf
);
8045 pf
->flags
&= ~I40E_FLAG_FD_SB_ENABLED
;
8046 pf
->auto_disable_flags
&= ~I40E_FLAG_FD_SB_ENABLED
;
8047 /* reset fd counters */
8048 pf
->fd_add_err
= pf
->fd_atr_cnt
= pf
->fd_tcp_rule
= 0;
8049 pf
->fdir_pf_active_filters
= 0;
8050 pf
->flags
|= I40E_FLAG_FD_ATR_ENABLED
;
8051 if (I40E_DEBUG_FD
& pf
->hw
.debug_mask
)
8052 dev_info(&pf
->pdev
->dev
, "ATR re-enabled.\n");
8053 /* if ATR was auto disabled it can be re-enabled. */
8054 if ((pf
->flags
& I40E_FLAG_FD_ATR_ENABLED
) &&
8055 (pf
->auto_disable_flags
& I40E_FLAG_FD_ATR_ENABLED
))
8056 pf
->auto_disable_flags
&= ~I40E_FLAG_FD_ATR_ENABLED
;
8062 * i40e_set_features - set the netdev feature flags
8063 * @netdev: ptr to the netdev being adjusted
8064 * @features: the feature set that the stack is suggesting
8066 static int i40e_set_features(struct net_device
*netdev
,
8067 netdev_features_t features
)
8069 struct i40e_netdev_priv
*np
= netdev_priv(netdev
);
8070 struct i40e_vsi
*vsi
= np
->vsi
;
8071 struct i40e_pf
*pf
= vsi
->back
;
8074 if (features
& NETIF_F_HW_VLAN_CTAG_RX
)
8075 i40e_vlan_stripping_enable(vsi
);
8077 i40e_vlan_stripping_disable(vsi
);
8079 need_reset
= i40e_set_ntuple(pf
, features
);
8082 i40e_do_reset(pf
, BIT_ULL(__I40E_PF_RESET_REQUESTED
));
8087 #ifdef CONFIG_I40E_VXLAN
8089 * i40e_get_vxlan_port_idx - Lookup a possibly offloaded for Rx UDP port
8090 * @pf: board private structure
8091 * @port: The UDP port to look up
8093 * Returns the index number or I40E_MAX_PF_UDP_OFFLOAD_PORTS if port not found
8095 static u8
i40e_get_vxlan_port_idx(struct i40e_pf
*pf
, __be16 port
)
8099 for (i
= 0; i
< I40E_MAX_PF_UDP_OFFLOAD_PORTS
; i
++) {
8100 if (pf
->vxlan_ports
[i
] == port
)
8108 * i40e_add_vxlan_port - Get notifications about VXLAN ports that come up
8109 * @netdev: This physical port's netdev
8110 * @sa_family: Socket Family that VXLAN is notifying us about
8111 * @port: New UDP port number that VXLAN started listening to
8113 static void i40e_add_vxlan_port(struct net_device
*netdev
,
8114 sa_family_t sa_family
, __be16 port
)
8116 struct i40e_netdev_priv
*np
= netdev_priv(netdev
);
8117 struct i40e_vsi
*vsi
= np
->vsi
;
8118 struct i40e_pf
*pf
= vsi
->back
;
8122 if (sa_family
== AF_INET6
)
8125 idx
= i40e_get_vxlan_port_idx(pf
, port
);
8127 /* Check if port already exists */
8128 if (idx
< I40E_MAX_PF_UDP_OFFLOAD_PORTS
) {
8129 netdev_info(netdev
, "vxlan port %d already offloaded\n",
8134 /* Now check if there is space to add the new port */
8135 next_idx
= i40e_get_vxlan_port_idx(pf
, 0);
8137 if (next_idx
== I40E_MAX_PF_UDP_OFFLOAD_PORTS
) {
8138 netdev_info(netdev
, "maximum number of vxlan UDP ports reached, not adding port %d\n",
8143 /* New port: add it and mark its index in the bitmap */
8144 pf
->vxlan_ports
[next_idx
] = port
;
8145 pf
->pending_vxlan_bitmap
|= BIT_ULL(next_idx
);
8146 pf
->flags
|= I40E_FLAG_VXLAN_FILTER_SYNC
;
8150 * i40e_del_vxlan_port - Get notifications about VXLAN ports that go away
8151 * @netdev: This physical port's netdev
8152 * @sa_family: Socket Family that VXLAN is notifying us about
8153 * @port: UDP port number that VXLAN stopped listening to
8155 static void i40e_del_vxlan_port(struct net_device
*netdev
,
8156 sa_family_t sa_family
, __be16 port
)
8158 struct i40e_netdev_priv
*np
= netdev_priv(netdev
);
8159 struct i40e_vsi
*vsi
= np
->vsi
;
8160 struct i40e_pf
*pf
= vsi
->back
;
8163 if (sa_family
== AF_INET6
)
8166 idx
= i40e_get_vxlan_port_idx(pf
, port
);
8168 /* Check if port already exists */
8169 if (idx
< I40E_MAX_PF_UDP_OFFLOAD_PORTS
) {
8170 /* if port exists, set it to 0 (mark for deletion)
8171 * and make it pending
8173 pf
->vxlan_ports
[idx
] = 0;
8174 pf
->pending_vxlan_bitmap
|= BIT_ULL(idx
);
8175 pf
->flags
|= I40E_FLAG_VXLAN_FILTER_SYNC
;
8177 netdev_warn(netdev
, "vxlan port %d was not found, not deleting\n",
8183 static int i40e_get_phys_port_id(struct net_device
*netdev
,
8184 struct netdev_phys_item_id
*ppid
)
8186 struct i40e_netdev_priv
*np
= netdev_priv(netdev
);
8187 struct i40e_pf
*pf
= np
->vsi
->back
;
8188 struct i40e_hw
*hw
= &pf
->hw
;
8190 if (!(pf
->flags
& I40E_FLAG_PORT_ID_VALID
))
8193 ppid
->id_len
= min_t(int, sizeof(hw
->mac
.port_addr
), sizeof(ppid
->id
));
8194 memcpy(ppid
->id
, hw
->mac
.port_addr
, ppid
->id_len
);
8200 * i40e_ndo_fdb_add - add an entry to the hardware database
8201 * @ndm: the input from the stack
8202 * @tb: pointer to array of nladdr (unused)
8203 * @dev: the net device pointer
8204 * @addr: the MAC address entry being added
8205 * @flags: instructions from stack about fdb operation
8207 static int i40e_ndo_fdb_add(struct ndmsg
*ndm
, struct nlattr
*tb
[],
8208 struct net_device
*dev
,
8209 const unsigned char *addr
, u16 vid
,
8212 struct i40e_netdev_priv
*np
= netdev_priv(dev
);
8213 struct i40e_pf
*pf
= np
->vsi
->back
;
8216 if (!(pf
->flags
& I40E_FLAG_SRIOV_ENABLED
))
8220 pr_info("%s: vlans aren't supported yet for dev_uc|mc_add()\n", dev
->name
);
8224 /* Hardware does not support aging addresses so if a
8225 * ndm_state is given only allow permanent addresses
8227 if (ndm
->ndm_state
&& !(ndm
->ndm_state
& NUD_PERMANENT
)) {
8228 netdev_info(dev
, "FDB only supports static addresses\n");
8232 if (is_unicast_ether_addr(addr
) || is_link_local_ether_addr(addr
))
8233 err
= dev_uc_add_excl(dev
, addr
);
8234 else if (is_multicast_ether_addr(addr
))
8235 err
= dev_mc_add_excl(dev
, addr
);
8239 /* Only return duplicate errors if NLM_F_EXCL is set */
8240 if (err
== -EEXIST
&& !(flags
& NLM_F_EXCL
))
8247 * i40e_ndo_bridge_setlink - Set the hardware bridge mode
8248 * @dev: the netdev being configured
8249 * @nlh: RTNL message
8251 * Inserts a new hardware bridge if not already created and
8252 * enables the bridging mode requested (VEB or VEPA). If the
8253 * hardware bridge has already been inserted and the request
8254 * is to change the mode then that requires a PF reset to
8255 * allow rebuild of the components with required hardware
8256 * bridge mode enabled.
8258 static int i40e_ndo_bridge_setlink(struct net_device
*dev
,
8259 struct nlmsghdr
*nlh
,
8262 struct i40e_netdev_priv
*np
= netdev_priv(dev
);
8263 struct i40e_vsi
*vsi
= np
->vsi
;
8264 struct i40e_pf
*pf
= vsi
->back
;
8265 struct i40e_veb
*veb
= NULL
;
8266 struct nlattr
*attr
, *br_spec
;
8269 /* Only for PF VSI for now */
8270 if (vsi
->seid
!= pf
->vsi
[pf
->lan_vsi
]->seid
)
8273 /* Find the HW bridge for PF VSI */
8274 for (i
= 0; i
< I40E_MAX_VEB
&& !veb
; i
++) {
8275 if (pf
->veb
[i
] && pf
->veb
[i
]->seid
== vsi
->uplink_seid
)
8279 br_spec
= nlmsg_find_attr(nlh
, sizeof(struct ifinfomsg
), IFLA_AF_SPEC
);
8281 nla_for_each_nested(attr
, br_spec
, rem
) {
8284 if (nla_type(attr
) != IFLA_BRIDGE_MODE
)
8287 mode
= nla_get_u16(attr
);
8288 if ((mode
!= BRIDGE_MODE_VEPA
) &&
8289 (mode
!= BRIDGE_MODE_VEB
))
8292 /* Insert a new HW bridge */
8294 veb
= i40e_veb_setup(pf
, 0, vsi
->uplink_seid
, vsi
->seid
,
8295 vsi
->tc_config
.enabled_tc
);
8297 veb
->bridge_mode
= mode
;
8298 i40e_config_bridge_mode(veb
);
8300 /* No Bridge HW offload available */
8304 } else if (mode
!= veb
->bridge_mode
) {
8305 /* Existing HW bridge but different mode needs reset */
8306 veb
->bridge_mode
= mode
;
8307 /* TODO: If no VFs or VMDq VSIs, disallow VEB mode */
8308 if (mode
== BRIDGE_MODE_VEB
)
8309 pf
->flags
|= I40E_FLAG_VEB_MODE_ENABLED
;
8311 pf
->flags
&= ~I40E_FLAG_VEB_MODE_ENABLED
;
8312 i40e_do_reset(pf
, BIT_ULL(__I40E_PF_RESET_REQUESTED
));
8321 * i40e_ndo_bridge_getlink - Get the hardware bridge mode
8324 * @seq: RTNL message seq #
8325 * @dev: the netdev being configured
8326 * @filter_mask: unused
8328 * Return the mode in which the hardware bridge is operating in
8331 static int i40e_ndo_bridge_getlink(struct sk_buff
*skb
, u32 pid
, u32 seq
,
8332 struct net_device
*dev
,
8333 u32 filter_mask
, int nlflags
)
8335 struct i40e_netdev_priv
*np
= netdev_priv(dev
);
8336 struct i40e_vsi
*vsi
= np
->vsi
;
8337 struct i40e_pf
*pf
= vsi
->back
;
8338 struct i40e_veb
*veb
= NULL
;
8341 /* Only for PF VSI for now */
8342 if (vsi
->seid
!= pf
->vsi
[pf
->lan_vsi
]->seid
)
8345 /* Find the HW bridge for the PF VSI */
8346 for (i
= 0; i
< I40E_MAX_VEB
&& !veb
; i
++) {
8347 if (pf
->veb
[i
] && pf
->veb
[i
]->seid
== vsi
->uplink_seid
)
8354 return ndo_dflt_bridge_getlink(skb
, pid
, seq
, dev
, veb
->bridge_mode
,
8355 nlflags
, 0, 0, filter_mask
, NULL
);
8358 #define I40E_MAX_TUNNEL_HDR_LEN 80
8360 * i40e_features_check - Validate encapsulated packet conforms to limits
8362 * @netdev: This physical port's netdev
8363 * @features: Offload features that the stack believes apply
8365 static netdev_features_t
i40e_features_check(struct sk_buff
*skb
,
8366 struct net_device
*dev
,
8367 netdev_features_t features
)
8369 if (skb
->encapsulation
&&
8370 (skb_inner_mac_header(skb
) - skb_transport_header(skb
) >
8371 I40E_MAX_TUNNEL_HDR_LEN
))
8372 return features
& ~(NETIF_F_ALL_CSUM
| NETIF_F_GSO_MASK
);
8377 static const struct net_device_ops i40e_netdev_ops
= {
8378 .ndo_open
= i40e_open
,
8379 .ndo_stop
= i40e_close
,
8380 .ndo_start_xmit
= i40e_lan_xmit_frame
,
8381 .ndo_get_stats64
= i40e_get_netdev_stats_struct
,
8382 .ndo_set_rx_mode
= i40e_set_rx_mode
,
8383 .ndo_validate_addr
= eth_validate_addr
,
8384 .ndo_set_mac_address
= i40e_set_mac
,
8385 .ndo_change_mtu
= i40e_change_mtu
,
8386 .ndo_do_ioctl
= i40e_ioctl
,
8387 .ndo_tx_timeout
= i40e_tx_timeout
,
8388 .ndo_vlan_rx_add_vid
= i40e_vlan_rx_add_vid
,
8389 .ndo_vlan_rx_kill_vid
= i40e_vlan_rx_kill_vid
,
8390 #ifdef CONFIG_NET_POLL_CONTROLLER
8391 .ndo_poll_controller
= i40e_netpoll
,
8393 .ndo_setup_tc
= i40e_setup_tc
,
8395 .ndo_fcoe_enable
= i40e_fcoe_enable
,
8396 .ndo_fcoe_disable
= i40e_fcoe_disable
,
8398 .ndo_set_features
= i40e_set_features
,
8399 .ndo_set_vf_mac
= i40e_ndo_set_vf_mac
,
8400 .ndo_set_vf_vlan
= i40e_ndo_set_vf_port_vlan
,
8401 .ndo_set_vf_rate
= i40e_ndo_set_vf_bw
,
8402 .ndo_get_vf_config
= i40e_ndo_get_vf_config
,
8403 .ndo_set_vf_link_state
= i40e_ndo_set_vf_link_state
,
8404 .ndo_set_vf_spoofchk
= i40e_ndo_set_vf_spoofchk
,
8405 #ifdef CONFIG_I40E_VXLAN
8406 .ndo_add_vxlan_port
= i40e_add_vxlan_port
,
8407 .ndo_del_vxlan_port
= i40e_del_vxlan_port
,
8409 .ndo_get_phys_port_id
= i40e_get_phys_port_id
,
8410 .ndo_fdb_add
= i40e_ndo_fdb_add
,
8411 .ndo_features_check
= i40e_features_check
,
8412 .ndo_bridge_getlink
= i40e_ndo_bridge_getlink
,
8413 .ndo_bridge_setlink
= i40e_ndo_bridge_setlink
,
8417 * i40e_config_netdev - Setup the netdev flags
8418 * @vsi: the VSI being configured
8420 * Returns 0 on success, negative value on failure
8422 static int i40e_config_netdev(struct i40e_vsi
*vsi
)
8424 u8 brdcast
[ETH_ALEN
] = {0xff, 0xff, 0xff, 0xff, 0xff, 0xff};
8425 struct i40e_pf
*pf
= vsi
->back
;
8426 struct i40e_hw
*hw
= &pf
->hw
;
8427 struct i40e_netdev_priv
*np
;
8428 struct net_device
*netdev
;
8429 u8 mac_addr
[ETH_ALEN
];
8432 etherdev_size
= sizeof(struct i40e_netdev_priv
);
8433 netdev
= alloc_etherdev_mq(etherdev_size
, vsi
->alloc_queue_pairs
);
8437 vsi
->netdev
= netdev
;
8438 np
= netdev_priv(netdev
);
8441 netdev
->hw_enc_features
|= NETIF_F_IP_CSUM
|
8442 NETIF_F_GSO_UDP_TUNNEL
|
8445 netdev
->features
= NETIF_F_SG
|
8449 NETIF_F_GSO_UDP_TUNNEL
|
8450 NETIF_F_HW_VLAN_CTAG_TX
|
8451 NETIF_F_HW_VLAN_CTAG_RX
|
8452 NETIF_F_HW_VLAN_CTAG_FILTER
|
8461 if (!(pf
->flags
& I40E_FLAG_MFP_ENABLED
))
8462 netdev
->features
|= NETIF_F_NTUPLE
;
8464 /* copy netdev features into list of user selectable features */
8465 netdev
->hw_features
|= netdev
->features
;
8467 if (vsi
->type
== I40E_VSI_MAIN
) {
8468 SET_NETDEV_DEV(netdev
, &pf
->pdev
->dev
);
8469 ether_addr_copy(mac_addr
, hw
->mac
.perm_addr
);
8470 /* The following steps are necessary to prevent reception
8471 * of tagged packets - some older NVM configurations load a
8472 * default a MAC-VLAN filter that accepts any tagged packet
8473 * which must be replaced by a normal filter.
8475 if (!i40e_rm_default_mac_filter(vsi
, mac_addr
))
8476 i40e_add_filter(vsi
, mac_addr
,
8477 I40E_VLAN_ANY
, false, true);
8479 /* relate the VSI_VMDQ name to the VSI_MAIN name */
8480 snprintf(netdev
->name
, IFNAMSIZ
, "%sv%%d",
8481 pf
->vsi
[pf
->lan_vsi
]->netdev
->name
);
8482 random_ether_addr(mac_addr
);
8483 i40e_add_filter(vsi
, mac_addr
, I40E_VLAN_ANY
, false, false);
8485 i40e_add_filter(vsi
, brdcast
, I40E_VLAN_ANY
, false, false);
8487 ether_addr_copy(netdev
->dev_addr
, mac_addr
);
8488 ether_addr_copy(netdev
->perm_addr
, mac_addr
);
8489 /* vlan gets same features (except vlan offload)
8490 * after any tweaks for specific VSI types
8492 netdev
->vlan_features
= netdev
->features
& ~(NETIF_F_HW_VLAN_CTAG_TX
|
8493 NETIF_F_HW_VLAN_CTAG_RX
|
8494 NETIF_F_HW_VLAN_CTAG_FILTER
);
8495 netdev
->priv_flags
|= IFF_UNICAST_FLT
;
8496 netdev
->priv_flags
|= IFF_SUPP_NOFCS
;
8497 /* Setup netdev TC information */
8498 i40e_vsi_config_netdev_tc(vsi
, vsi
->tc_config
.enabled_tc
);
8500 netdev
->netdev_ops
= &i40e_netdev_ops
;
8501 netdev
->watchdog_timeo
= 5 * HZ
;
8502 i40e_set_ethtool_ops(netdev
);
8504 i40e_fcoe_config_netdev(netdev
, vsi
);
8511 * i40e_vsi_delete - Delete a VSI from the switch
8512 * @vsi: the VSI being removed
8514 * Returns 0 on success, negative value on failure
8516 static void i40e_vsi_delete(struct i40e_vsi
*vsi
)
8518 /* remove default VSI is not allowed */
8519 if (vsi
== vsi
->back
->vsi
[vsi
->back
->lan_vsi
])
8522 i40e_aq_delete_element(&vsi
->back
->hw
, vsi
->seid
, NULL
);
8526 * i40e_is_vsi_uplink_mode_veb - Check if the VSI's uplink bridge mode is VEB
8527 * @vsi: the VSI being queried
8529 * Returns 1 if HW bridge mode is VEB and return 0 in case of VEPA mode
8531 int i40e_is_vsi_uplink_mode_veb(struct i40e_vsi
*vsi
)
8533 struct i40e_veb
*veb
;
8534 struct i40e_pf
*pf
= vsi
->back
;
8536 /* Uplink is not a bridge so default to VEB */
8537 if (vsi
->veb_idx
== I40E_NO_VEB
)
8540 veb
= pf
->veb
[vsi
->veb_idx
];
8541 /* Uplink is a bridge in VEPA mode */
8542 if (veb
&& (veb
->bridge_mode
& BRIDGE_MODE_VEPA
))
8545 /* Uplink is a bridge in VEB mode */
8550 * i40e_add_vsi - Add a VSI to the switch
8551 * @vsi: the VSI being configured
8553 * This initializes a VSI context depending on the VSI type to be added and
8554 * passes it down to the add_vsi aq command.
8556 static int i40e_add_vsi(struct i40e_vsi
*vsi
)
8559 struct i40e_mac_filter
*f
, *ftmp
;
8560 struct i40e_pf
*pf
= vsi
->back
;
8561 struct i40e_hw
*hw
= &pf
->hw
;
8562 struct i40e_vsi_context ctxt
;
8563 u8 enabled_tc
= 0x1; /* TC0 enabled */
8566 memset(&ctxt
, 0, sizeof(ctxt
));
8567 switch (vsi
->type
) {
8569 /* The PF's main VSI is already setup as part of the
8570 * device initialization, so we'll not bother with
8571 * the add_vsi call, but we will retrieve the current
8574 ctxt
.seid
= pf
->main_vsi_seid
;
8575 ctxt
.pf_num
= pf
->hw
.pf_id
;
8577 ret
= i40e_aq_get_vsi_params(&pf
->hw
, &ctxt
, NULL
);
8578 ctxt
.flags
= I40E_AQ_VSI_TYPE_PF
;
8580 dev_info(&pf
->pdev
->dev
,
8581 "couldn't get PF vsi config, err %s aq_err %s\n",
8582 i40e_stat_str(&pf
->hw
, ret
),
8583 i40e_aq_str(&pf
->hw
,
8584 pf
->hw
.aq
.asq_last_status
));
8587 vsi
->info
= ctxt
.info
;
8588 vsi
->info
.valid_sections
= 0;
8590 vsi
->seid
= ctxt
.seid
;
8591 vsi
->id
= ctxt
.vsi_number
;
8593 enabled_tc
= i40e_pf_get_tc_map(pf
);
8595 /* MFP mode setup queue map and update VSI */
8596 if ((pf
->flags
& I40E_FLAG_MFP_ENABLED
) &&
8597 !(pf
->hw
.func_caps
.iscsi
)) { /* NIC type PF */
8598 memset(&ctxt
, 0, sizeof(ctxt
));
8599 ctxt
.seid
= pf
->main_vsi_seid
;
8600 ctxt
.pf_num
= pf
->hw
.pf_id
;
8602 i40e_vsi_setup_queue_map(vsi
, &ctxt
, enabled_tc
, false);
8603 ret
= i40e_aq_update_vsi_params(hw
, &ctxt
, NULL
);
8605 dev_info(&pf
->pdev
->dev
,
8606 "update vsi failed, err %s aq_err %s\n",
8607 i40e_stat_str(&pf
->hw
, ret
),
8608 i40e_aq_str(&pf
->hw
,
8609 pf
->hw
.aq
.asq_last_status
));
8613 /* update the local VSI info queue map */
8614 i40e_vsi_update_queue_map(vsi
, &ctxt
);
8615 vsi
->info
.valid_sections
= 0;
8617 /* Default/Main VSI is only enabled for TC0
8618 * reconfigure it to enable all TCs that are
8619 * available on the port in SFP mode.
8620 * For MFP case the iSCSI PF would use this
8621 * flow to enable LAN+iSCSI TC.
8623 ret
= i40e_vsi_config_tc(vsi
, enabled_tc
);
8625 dev_info(&pf
->pdev
->dev
,
8626 "failed to configure TCs for main VSI tc_map 0x%08x, err %s aq_err %s\n",
8628 i40e_stat_str(&pf
->hw
, ret
),
8629 i40e_aq_str(&pf
->hw
,
8630 pf
->hw
.aq
.asq_last_status
));
8637 ctxt
.pf_num
= hw
->pf_id
;
8639 ctxt
.uplink_seid
= vsi
->uplink_seid
;
8640 ctxt
.connection_type
= I40E_AQ_VSI_CONN_TYPE_NORMAL
;
8641 ctxt
.flags
= I40E_AQ_VSI_TYPE_PF
;
8642 if ((pf
->flags
& I40E_FLAG_VEB_MODE_ENABLED
) &&
8643 (i40e_is_vsi_uplink_mode_veb(vsi
))) {
8644 ctxt
.info
.valid_sections
|=
8645 cpu_to_le16(I40E_AQ_VSI_PROP_SWITCH_VALID
);
8646 ctxt
.info
.switch_id
=
8647 cpu_to_le16(I40E_AQ_VSI_SW_ID_FLAG_ALLOW_LB
);
8649 i40e_vsi_setup_queue_map(vsi
, &ctxt
, enabled_tc
, true);
8652 case I40E_VSI_VMDQ2
:
8653 ctxt
.pf_num
= hw
->pf_id
;
8655 ctxt
.uplink_seid
= vsi
->uplink_seid
;
8656 ctxt
.connection_type
= I40E_AQ_VSI_CONN_TYPE_NORMAL
;
8657 ctxt
.flags
= I40E_AQ_VSI_TYPE_VMDQ2
;
8659 /* This VSI is connected to VEB so the switch_id
8660 * should be set to zero by default.
8662 if (i40e_is_vsi_uplink_mode_veb(vsi
)) {
8663 ctxt
.info
.valid_sections
|=
8664 cpu_to_le16(I40E_AQ_VSI_PROP_SWITCH_VALID
);
8665 ctxt
.info
.switch_id
=
8666 cpu_to_le16(I40E_AQ_VSI_SW_ID_FLAG_ALLOW_LB
);
8669 /* Setup the VSI tx/rx queue map for TC0 only for now */
8670 i40e_vsi_setup_queue_map(vsi
, &ctxt
, enabled_tc
, true);
8673 case I40E_VSI_SRIOV
:
8674 ctxt
.pf_num
= hw
->pf_id
;
8675 ctxt
.vf_num
= vsi
->vf_id
+ hw
->func_caps
.vf_base_id
;
8676 ctxt
.uplink_seid
= vsi
->uplink_seid
;
8677 ctxt
.connection_type
= I40E_AQ_VSI_CONN_TYPE_NORMAL
;
8678 ctxt
.flags
= I40E_AQ_VSI_TYPE_VF
;
8680 /* This VSI is connected to VEB so the switch_id
8681 * should be set to zero by default.
8683 if (i40e_is_vsi_uplink_mode_veb(vsi
)) {
8684 ctxt
.info
.valid_sections
|=
8685 cpu_to_le16(I40E_AQ_VSI_PROP_SWITCH_VALID
);
8686 ctxt
.info
.switch_id
=
8687 cpu_to_le16(I40E_AQ_VSI_SW_ID_FLAG_ALLOW_LB
);
8690 ctxt
.info
.valid_sections
|= cpu_to_le16(I40E_AQ_VSI_PROP_VLAN_VALID
);
8691 ctxt
.info
.port_vlan_flags
|= I40E_AQ_VSI_PVLAN_MODE_ALL
;
8692 if (pf
->vf
[vsi
->vf_id
].spoofchk
) {
8693 ctxt
.info
.valid_sections
|=
8694 cpu_to_le16(I40E_AQ_VSI_PROP_SECURITY_VALID
);
8695 ctxt
.info
.sec_flags
|=
8696 (I40E_AQ_VSI_SEC_FLAG_ENABLE_VLAN_CHK
|
8697 I40E_AQ_VSI_SEC_FLAG_ENABLE_MAC_CHK
);
8699 /* Setup the VSI tx/rx queue map for TC0 only for now */
8700 i40e_vsi_setup_queue_map(vsi
, &ctxt
, enabled_tc
, true);
8705 ret
= i40e_fcoe_vsi_init(vsi
, &ctxt
);
8707 dev_info(&pf
->pdev
->dev
, "failed to initialize FCoE VSI\n");
8712 #endif /* I40E_FCOE */
8717 if (vsi
->type
!= I40E_VSI_MAIN
) {
8718 ret
= i40e_aq_add_vsi(hw
, &ctxt
, NULL
);
8720 dev_info(&vsi
->back
->pdev
->dev
,
8721 "add vsi failed, err %s aq_err %s\n",
8722 i40e_stat_str(&pf
->hw
, ret
),
8723 i40e_aq_str(&pf
->hw
,
8724 pf
->hw
.aq
.asq_last_status
));
8728 vsi
->info
= ctxt
.info
;
8729 vsi
->info
.valid_sections
= 0;
8730 vsi
->seid
= ctxt
.seid
;
8731 vsi
->id
= ctxt
.vsi_number
;
8734 /* If macvlan filters already exist, force them to get loaded */
8735 list_for_each_entry_safe(f
, ftmp
, &vsi
->mac_filter_list
, list
) {
8739 if (f
->is_laa
&& vsi
->type
== I40E_VSI_MAIN
) {
8740 struct i40e_aqc_remove_macvlan_element_data element
;
8742 memset(&element
, 0, sizeof(element
));
8743 ether_addr_copy(element
.mac_addr
, f
->macaddr
);
8744 element
.flags
= I40E_AQC_MACVLAN_DEL_PERFECT_MATCH
;
8745 ret
= i40e_aq_remove_macvlan(hw
, vsi
->seid
,
8748 /* some older FW has a different default */
8750 I40E_AQC_MACVLAN_DEL_IGNORE_VLAN
;
8751 i40e_aq_remove_macvlan(hw
, vsi
->seid
,
8755 i40e_aq_mac_address_write(hw
,
8756 I40E_AQC_WRITE_TYPE_LAA_WOL
,
8761 vsi
->flags
|= I40E_VSI_FLAG_FILTER_CHANGED
;
8762 pf
->flags
|= I40E_FLAG_FILTER_SYNC
;
8765 /* Update VSI BW information */
8766 ret
= i40e_vsi_get_bw_info(vsi
);
8768 dev_info(&pf
->pdev
->dev
,
8769 "couldn't get vsi bw info, err %s aq_err %s\n",
8770 i40e_stat_str(&pf
->hw
, ret
),
8771 i40e_aq_str(&pf
->hw
, pf
->hw
.aq
.asq_last_status
));
8772 /* VSI is already added so not tearing that up */
8781 * i40e_vsi_release - Delete a VSI and free its resources
8782 * @vsi: the VSI being removed
8784 * Returns 0 on success or < 0 on error
8786 int i40e_vsi_release(struct i40e_vsi
*vsi
)
8788 struct i40e_mac_filter
*f
, *ftmp
;
8789 struct i40e_veb
*veb
= NULL
;
8796 /* release of a VEB-owner or last VSI is not allowed */
8797 if (vsi
->flags
& I40E_VSI_FLAG_VEB_OWNER
) {
8798 dev_info(&pf
->pdev
->dev
, "VSI %d has existing VEB %d\n",
8799 vsi
->seid
, vsi
->uplink_seid
);
8802 if (vsi
== pf
->vsi
[pf
->lan_vsi
] &&
8803 !test_bit(__I40E_DOWN
, &pf
->state
)) {
8804 dev_info(&pf
->pdev
->dev
, "Can't remove PF VSI\n");
8808 uplink_seid
= vsi
->uplink_seid
;
8809 if (vsi
->type
!= I40E_VSI_SRIOV
) {
8810 if (vsi
->netdev_registered
) {
8811 vsi
->netdev_registered
= false;
8813 /* results in a call to i40e_close() */
8814 unregister_netdev(vsi
->netdev
);
8817 i40e_vsi_close(vsi
);
8819 i40e_vsi_disable_irq(vsi
);
8822 list_for_each_entry_safe(f
, ftmp
, &vsi
->mac_filter_list
, list
)
8823 i40e_del_filter(vsi
, f
->macaddr
, f
->vlan
,
8824 f
->is_vf
, f
->is_netdev
);
8825 i40e_sync_vsi_filters(vsi
, false);
8827 i40e_vsi_delete(vsi
);
8828 i40e_vsi_free_q_vectors(vsi
);
8830 free_netdev(vsi
->netdev
);
8833 i40e_vsi_clear_rings(vsi
);
8834 i40e_vsi_clear(vsi
);
8836 /* If this was the last thing on the VEB, except for the
8837 * controlling VSI, remove the VEB, which puts the controlling
8838 * VSI onto the next level down in the switch.
8840 * Well, okay, there's one more exception here: don't remove
8841 * the orphan VEBs yet. We'll wait for an explicit remove request
8842 * from up the network stack.
8844 for (n
= 0, i
= 0; i
< pf
->num_alloc_vsi
; i
++) {
8846 pf
->vsi
[i
]->uplink_seid
== uplink_seid
&&
8847 (pf
->vsi
[i
]->flags
& I40E_VSI_FLAG_VEB_OWNER
) == 0) {
8848 n
++; /* count the VSIs */
8851 for (i
= 0; i
< I40E_MAX_VEB
; i
++) {
8854 if (pf
->veb
[i
]->uplink_seid
== uplink_seid
)
8855 n
++; /* count the VEBs */
8856 if (pf
->veb
[i
]->seid
== uplink_seid
)
8859 if (n
== 0 && veb
&& veb
->uplink_seid
!= 0)
8860 i40e_veb_release(veb
);
8866 * i40e_vsi_setup_vectors - Set up the q_vectors for the given VSI
8867 * @vsi: ptr to the VSI
8869 * This should only be called after i40e_vsi_mem_alloc() which allocates the
8870 * corresponding SW VSI structure and initializes num_queue_pairs for the
8871 * newly allocated VSI.
8873 * Returns 0 on success or negative on failure
8875 static int i40e_vsi_setup_vectors(struct i40e_vsi
*vsi
)
8878 struct i40e_pf
*pf
= vsi
->back
;
8880 if (vsi
->q_vectors
[0]) {
8881 dev_info(&pf
->pdev
->dev
, "VSI %d has existing q_vectors\n",
8886 if (vsi
->base_vector
) {
8887 dev_info(&pf
->pdev
->dev
, "VSI %d has non-zero base vector %d\n",
8888 vsi
->seid
, vsi
->base_vector
);
8892 ret
= i40e_vsi_alloc_q_vectors(vsi
);
8894 dev_info(&pf
->pdev
->dev
,
8895 "failed to allocate %d q_vector for VSI %d, ret=%d\n",
8896 vsi
->num_q_vectors
, vsi
->seid
, ret
);
8897 vsi
->num_q_vectors
= 0;
8898 goto vector_setup_out
;
8901 /* In Legacy mode, we do not have to get any other vector since we
8902 * piggyback on the misc/ICR0 for queue interrupts.
8904 if (!(pf
->flags
& I40E_FLAG_MSIX_ENABLED
))
8906 if (vsi
->num_q_vectors
)
8907 vsi
->base_vector
= i40e_get_lump(pf
, pf
->irq_pile
,
8908 vsi
->num_q_vectors
, vsi
->idx
);
8909 if (vsi
->base_vector
< 0) {
8910 dev_info(&pf
->pdev
->dev
,
8911 "failed to get tracking for %d vectors for VSI %d, err=%d\n",
8912 vsi
->num_q_vectors
, vsi
->seid
, vsi
->base_vector
);
8913 i40e_vsi_free_q_vectors(vsi
);
8915 goto vector_setup_out
;
8923 * i40e_vsi_reinit_setup - return and reallocate resources for a VSI
8924 * @vsi: pointer to the vsi.
8926 * This re-allocates a vsi's queue resources.
8928 * Returns pointer to the successfully allocated and configured VSI sw struct
8929 * on success, otherwise returns NULL on failure.
8931 static struct i40e_vsi
*i40e_vsi_reinit_setup(struct i40e_vsi
*vsi
)
8933 struct i40e_pf
*pf
= vsi
->back
;
8937 i40e_put_lump(pf
->qp_pile
, vsi
->base_queue
, vsi
->idx
);
8938 i40e_vsi_clear_rings(vsi
);
8940 i40e_vsi_free_arrays(vsi
, false);
8941 i40e_set_num_rings_in_vsi(vsi
);
8942 ret
= i40e_vsi_alloc_arrays(vsi
, false);
8946 ret
= i40e_get_lump(pf
, pf
->qp_pile
, vsi
->alloc_queue_pairs
, vsi
->idx
);
8948 dev_info(&pf
->pdev
->dev
,
8949 "failed to get tracking for %d queues for VSI %d err %d\n",
8950 vsi
->alloc_queue_pairs
, vsi
->seid
, ret
);
8953 vsi
->base_queue
= ret
;
8955 /* Update the FW view of the VSI. Force a reset of TC and queue
8956 * layout configurations.
8958 enabled_tc
= pf
->vsi
[pf
->lan_vsi
]->tc_config
.enabled_tc
;
8959 pf
->vsi
[pf
->lan_vsi
]->tc_config
.enabled_tc
= 0;
8960 pf
->vsi
[pf
->lan_vsi
]->seid
= pf
->main_vsi_seid
;
8961 i40e_vsi_config_tc(pf
->vsi
[pf
->lan_vsi
], enabled_tc
);
8963 /* assign it some queues */
8964 ret
= i40e_alloc_rings(vsi
);
8968 /* map all of the rings to the q_vectors */
8969 i40e_vsi_map_rings_to_vectors(vsi
);
8973 i40e_vsi_free_q_vectors(vsi
);
8974 if (vsi
->netdev_registered
) {
8975 vsi
->netdev_registered
= false;
8976 unregister_netdev(vsi
->netdev
);
8977 free_netdev(vsi
->netdev
);
8980 i40e_aq_delete_element(&pf
->hw
, vsi
->seid
, NULL
);
8982 i40e_vsi_clear(vsi
);
8987 * i40e_vsi_setup - Set up a VSI by a given type
8988 * @pf: board private structure
8990 * @uplink_seid: the switch element to link to
8991 * @param1: usage depends upon VSI type. For VF types, indicates VF id
8993 * This allocates the sw VSI structure and its queue resources, then add a VSI
8994 * to the identified VEB.
8996 * Returns pointer to the successfully allocated and configure VSI sw struct on
8997 * success, otherwise returns NULL on failure.
8999 struct i40e_vsi
*i40e_vsi_setup(struct i40e_pf
*pf
, u8 type
,
9000 u16 uplink_seid
, u32 param1
)
9002 struct i40e_vsi
*vsi
= NULL
;
9003 struct i40e_veb
*veb
= NULL
;
9007 /* The requested uplink_seid must be either
9008 * - the PF's port seid
9009 * no VEB is needed because this is the PF
9010 * or this is a Flow Director special case VSI
9011 * - seid of an existing VEB
9012 * - seid of a VSI that owns an existing VEB
9013 * - seid of a VSI that doesn't own a VEB
9014 * a new VEB is created and the VSI becomes the owner
9015 * - seid of the PF VSI, which is what creates the first VEB
9016 * this is a special case of the previous
9018 * Find which uplink_seid we were given and create a new VEB if needed
9020 for (i
= 0; i
< I40E_MAX_VEB
; i
++) {
9021 if (pf
->veb
[i
] && pf
->veb
[i
]->seid
== uplink_seid
) {
9027 if (!veb
&& uplink_seid
!= pf
->mac_seid
) {
9029 for (i
= 0; i
< pf
->num_alloc_vsi
; i
++) {
9030 if (pf
->vsi
[i
] && pf
->vsi
[i
]->seid
== uplink_seid
) {
9036 dev_info(&pf
->pdev
->dev
, "no such uplink_seid %d\n",
9041 if (vsi
->uplink_seid
== pf
->mac_seid
)
9042 veb
= i40e_veb_setup(pf
, 0, pf
->mac_seid
, vsi
->seid
,
9043 vsi
->tc_config
.enabled_tc
);
9044 else if ((vsi
->flags
& I40E_VSI_FLAG_VEB_OWNER
) == 0)
9045 veb
= i40e_veb_setup(pf
, 0, vsi
->uplink_seid
, vsi
->seid
,
9046 vsi
->tc_config
.enabled_tc
);
9048 if (vsi
->seid
!= pf
->vsi
[pf
->lan_vsi
]->seid
) {
9049 dev_info(&vsi
->back
->pdev
->dev
,
9050 "New VSI creation error, uplink seid of LAN VSI expected.\n");
9053 /* We come up by default in VEPA mode if SRIOV is not
9054 * already enabled, in which case we can't force VEPA
9057 if (!(pf
->flags
& I40E_FLAG_VEB_MODE_ENABLED
)) {
9058 veb
->bridge_mode
= BRIDGE_MODE_VEPA
;
9059 pf
->flags
&= ~I40E_FLAG_VEB_MODE_ENABLED
;
9061 i40e_config_bridge_mode(veb
);
9063 for (i
= 0; i
< I40E_MAX_VEB
&& !veb
; i
++) {
9064 if (pf
->veb
[i
] && pf
->veb
[i
]->seid
== vsi
->uplink_seid
)
9068 dev_info(&pf
->pdev
->dev
, "couldn't add VEB\n");
9072 vsi
->flags
|= I40E_VSI_FLAG_VEB_OWNER
;
9073 uplink_seid
= veb
->seid
;
9076 /* get vsi sw struct */
9077 v_idx
= i40e_vsi_mem_alloc(pf
, type
);
9080 vsi
= pf
->vsi
[v_idx
];
9084 vsi
->veb_idx
= (veb
? veb
->idx
: I40E_NO_VEB
);
9086 if (type
== I40E_VSI_MAIN
)
9087 pf
->lan_vsi
= v_idx
;
9088 else if (type
== I40E_VSI_SRIOV
)
9089 vsi
->vf_id
= param1
;
9090 /* assign it some queues */
9091 ret
= i40e_get_lump(pf
, pf
->qp_pile
, vsi
->alloc_queue_pairs
,
9094 dev_info(&pf
->pdev
->dev
,
9095 "failed to get tracking for %d queues for VSI %d err=%d\n",
9096 vsi
->alloc_queue_pairs
, vsi
->seid
, ret
);
9099 vsi
->base_queue
= ret
;
9101 /* get a VSI from the hardware */
9102 vsi
->uplink_seid
= uplink_seid
;
9103 ret
= i40e_add_vsi(vsi
);
9107 switch (vsi
->type
) {
9108 /* setup the netdev if needed */
9110 case I40E_VSI_VMDQ2
:
9112 ret
= i40e_config_netdev(vsi
);
9115 ret
= register_netdev(vsi
->netdev
);
9118 vsi
->netdev_registered
= true;
9119 netif_carrier_off(vsi
->netdev
);
9120 #ifdef CONFIG_I40E_DCB
9121 /* Setup DCB netlink interface */
9122 i40e_dcbnl_setup(vsi
);
9123 #endif /* CONFIG_I40E_DCB */
9127 /* set up vectors and rings if needed */
9128 ret
= i40e_vsi_setup_vectors(vsi
);
9132 ret
= i40e_alloc_rings(vsi
);
9136 /* map all of the rings to the q_vectors */
9137 i40e_vsi_map_rings_to_vectors(vsi
);
9139 i40e_vsi_reset_stats(vsi
);
9143 /* no netdev or rings for the other VSI types */
9147 if ((pf
->flags
& I40E_FLAG_RSS_AQ_CAPABLE
) &&
9148 (vsi
->type
== I40E_VSI_VMDQ2
)) {
9149 ret
= i40e_vsi_config_rss(vsi
);
9154 i40e_vsi_free_q_vectors(vsi
);
9156 if (vsi
->netdev_registered
) {
9157 vsi
->netdev_registered
= false;
9158 unregister_netdev(vsi
->netdev
);
9159 free_netdev(vsi
->netdev
);
9163 i40e_aq_delete_element(&pf
->hw
, vsi
->seid
, NULL
);
9165 i40e_vsi_clear(vsi
);
9171 * i40e_veb_get_bw_info - Query VEB BW information
9172 * @veb: the veb to query
9174 * Query the Tx scheduler BW configuration data for given VEB
9176 static int i40e_veb_get_bw_info(struct i40e_veb
*veb
)
9178 struct i40e_aqc_query_switching_comp_ets_config_resp ets_data
;
9179 struct i40e_aqc_query_switching_comp_bw_config_resp bw_data
;
9180 struct i40e_pf
*pf
= veb
->pf
;
9181 struct i40e_hw
*hw
= &pf
->hw
;
9186 ret
= i40e_aq_query_switch_comp_bw_config(hw
, veb
->seid
,
9189 dev_info(&pf
->pdev
->dev
,
9190 "query veb bw config failed, err %s aq_err %s\n",
9191 i40e_stat_str(&pf
->hw
, ret
),
9192 i40e_aq_str(&pf
->hw
, hw
->aq
.asq_last_status
));
9196 ret
= i40e_aq_query_switch_comp_ets_config(hw
, veb
->seid
,
9199 dev_info(&pf
->pdev
->dev
,
9200 "query veb bw ets config failed, err %s aq_err %s\n",
9201 i40e_stat_str(&pf
->hw
, ret
),
9202 i40e_aq_str(&pf
->hw
, hw
->aq
.asq_last_status
));
9206 veb
->bw_limit
= le16_to_cpu(ets_data
.port_bw_limit
);
9207 veb
->bw_max_quanta
= ets_data
.tc_bw_max
;
9208 veb
->is_abs_credits
= bw_data
.absolute_credits_enable
;
9209 veb
->enabled_tc
= ets_data
.tc_valid_bits
;
9210 tc_bw_max
= le16_to_cpu(bw_data
.tc_bw_max
[0]) |
9211 (le16_to_cpu(bw_data
.tc_bw_max
[1]) << 16);
9212 for (i
= 0; i
< I40E_MAX_TRAFFIC_CLASS
; i
++) {
9213 veb
->bw_tc_share_credits
[i
] = bw_data
.tc_bw_share_credits
[i
];
9214 veb
->bw_tc_limit_credits
[i
] =
9215 le16_to_cpu(bw_data
.tc_bw_limits
[i
]);
9216 veb
->bw_tc_max_quanta
[i
] = ((tc_bw_max
>> (i
*4)) & 0x7);
9224 * i40e_veb_mem_alloc - Allocates the next available struct veb in the PF
9225 * @pf: board private structure
9227 * On error: returns error code (negative)
9228 * On success: returns vsi index in PF (positive)
9230 static int i40e_veb_mem_alloc(struct i40e_pf
*pf
)
9233 struct i40e_veb
*veb
;
9236 /* Need to protect the allocation of switch elements at the PF level */
9237 mutex_lock(&pf
->switch_mutex
);
9239 /* VEB list may be fragmented if VEB creation/destruction has
9240 * been happening. We can afford to do a quick scan to look
9241 * for any free slots in the list.
9243 * find next empty veb slot, looping back around if necessary
9246 while ((i
< I40E_MAX_VEB
) && (pf
->veb
[i
] != NULL
))
9248 if (i
>= I40E_MAX_VEB
) {
9250 goto err_alloc_veb
; /* out of VEB slots! */
9253 veb
= kzalloc(sizeof(*veb
), GFP_KERNEL
);
9260 veb
->enabled_tc
= 1;
9265 mutex_unlock(&pf
->switch_mutex
);
9270 * i40e_switch_branch_release - Delete a branch of the switch tree
9271 * @branch: where to start deleting
9273 * This uses recursion to find the tips of the branch to be
9274 * removed, deleting until we get back to and can delete this VEB.
9276 static void i40e_switch_branch_release(struct i40e_veb
*branch
)
9278 struct i40e_pf
*pf
= branch
->pf
;
9279 u16 branch_seid
= branch
->seid
;
9280 u16 veb_idx
= branch
->idx
;
9283 /* release any VEBs on this VEB - RECURSION */
9284 for (i
= 0; i
< I40E_MAX_VEB
; i
++) {
9287 if (pf
->veb
[i
]->uplink_seid
== branch
->seid
)
9288 i40e_switch_branch_release(pf
->veb
[i
]);
9291 /* Release the VSIs on this VEB, but not the owner VSI.
9293 * NOTE: Removing the last VSI on a VEB has the SIDE EFFECT of removing
9294 * the VEB itself, so don't use (*branch) after this loop.
9296 for (i
= 0; i
< pf
->num_alloc_vsi
; i
++) {
9299 if (pf
->vsi
[i
]->uplink_seid
== branch_seid
&&
9300 (pf
->vsi
[i
]->flags
& I40E_VSI_FLAG_VEB_OWNER
) == 0) {
9301 i40e_vsi_release(pf
->vsi
[i
]);
9305 /* There's one corner case where the VEB might not have been
9306 * removed, so double check it here and remove it if needed.
9307 * This case happens if the veb was created from the debugfs
9308 * commands and no VSIs were added to it.
9310 if (pf
->veb
[veb_idx
])
9311 i40e_veb_release(pf
->veb
[veb_idx
]);
9315 * i40e_veb_clear - remove veb struct
9316 * @veb: the veb to remove
9318 static void i40e_veb_clear(struct i40e_veb
*veb
)
9324 struct i40e_pf
*pf
= veb
->pf
;
9326 mutex_lock(&pf
->switch_mutex
);
9327 if (pf
->veb
[veb
->idx
] == veb
)
9328 pf
->veb
[veb
->idx
] = NULL
;
9329 mutex_unlock(&pf
->switch_mutex
);
9336 * i40e_veb_release - Delete a VEB and free its resources
9337 * @veb: the VEB being removed
9339 void i40e_veb_release(struct i40e_veb
*veb
)
9341 struct i40e_vsi
*vsi
= NULL
;
9347 /* find the remaining VSI and check for extras */
9348 for (i
= 0; i
< pf
->num_alloc_vsi
; i
++) {
9349 if (pf
->vsi
[i
] && pf
->vsi
[i
]->uplink_seid
== veb
->seid
) {
9355 dev_info(&pf
->pdev
->dev
,
9356 "can't remove VEB %d with %d VSIs left\n",
9361 /* move the remaining VSI to uplink veb */
9362 vsi
->flags
&= ~I40E_VSI_FLAG_VEB_OWNER
;
9363 if (veb
->uplink_seid
) {
9364 vsi
->uplink_seid
= veb
->uplink_seid
;
9365 if (veb
->uplink_seid
== pf
->mac_seid
)
9366 vsi
->veb_idx
= I40E_NO_VEB
;
9368 vsi
->veb_idx
= veb
->veb_idx
;
9371 vsi
->uplink_seid
= pf
->vsi
[pf
->lan_vsi
]->uplink_seid
;
9372 vsi
->veb_idx
= pf
->vsi
[pf
->lan_vsi
]->veb_idx
;
9375 i40e_aq_delete_element(&pf
->hw
, veb
->seid
, NULL
);
9376 i40e_veb_clear(veb
);
9380 * i40e_add_veb - create the VEB in the switch
9381 * @veb: the VEB to be instantiated
9382 * @vsi: the controlling VSI
9384 static int i40e_add_veb(struct i40e_veb
*veb
, struct i40e_vsi
*vsi
)
9386 struct i40e_pf
*pf
= veb
->pf
;
9387 bool is_default
= veb
->pf
->cur_promisc
;
9388 bool is_cloud
= false;
9391 /* get a VEB from the hardware */
9392 ret
= i40e_aq_add_veb(&pf
->hw
, veb
->uplink_seid
, vsi
->seid
,
9393 veb
->enabled_tc
, is_default
,
9394 is_cloud
, &veb
->seid
, NULL
);
9396 dev_info(&pf
->pdev
->dev
,
9397 "couldn't add VEB, err %s aq_err %s\n",
9398 i40e_stat_str(&pf
->hw
, ret
),
9399 i40e_aq_str(&pf
->hw
, pf
->hw
.aq
.asq_last_status
));
9403 /* get statistics counter */
9404 ret
= i40e_aq_get_veb_parameters(&pf
->hw
, veb
->seid
, NULL
, NULL
,
9405 &veb
->stats_idx
, NULL
, NULL
, NULL
);
9407 dev_info(&pf
->pdev
->dev
,
9408 "couldn't get VEB statistics idx, err %s aq_err %s\n",
9409 i40e_stat_str(&pf
->hw
, ret
),
9410 i40e_aq_str(&pf
->hw
, pf
->hw
.aq
.asq_last_status
));
9413 ret
= i40e_veb_get_bw_info(veb
);
9415 dev_info(&pf
->pdev
->dev
,
9416 "couldn't get VEB bw info, err %s aq_err %s\n",
9417 i40e_stat_str(&pf
->hw
, ret
),
9418 i40e_aq_str(&pf
->hw
, pf
->hw
.aq
.asq_last_status
));
9419 i40e_aq_delete_element(&pf
->hw
, veb
->seid
, NULL
);
9423 vsi
->uplink_seid
= veb
->seid
;
9424 vsi
->veb_idx
= veb
->idx
;
9425 vsi
->flags
|= I40E_VSI_FLAG_VEB_OWNER
;
9431 * i40e_veb_setup - Set up a VEB
9432 * @pf: board private structure
9433 * @flags: VEB setup flags
9434 * @uplink_seid: the switch element to link to
9435 * @vsi_seid: the initial VSI seid
9436 * @enabled_tc: Enabled TC bit-map
9438 * This allocates the sw VEB structure and links it into the switch
9439 * It is possible and legal for this to be a duplicate of an already
9440 * existing VEB. It is also possible for both uplink and vsi seids
9441 * to be zero, in order to create a floating VEB.
9443 * Returns pointer to the successfully allocated VEB sw struct on
9444 * success, otherwise returns NULL on failure.
9446 struct i40e_veb
*i40e_veb_setup(struct i40e_pf
*pf
, u16 flags
,
9447 u16 uplink_seid
, u16 vsi_seid
,
9450 struct i40e_veb
*veb
, *uplink_veb
= NULL
;
9451 int vsi_idx
, veb_idx
;
9454 /* if one seid is 0, the other must be 0 to create a floating relay */
9455 if ((uplink_seid
== 0 || vsi_seid
== 0) &&
9456 (uplink_seid
+ vsi_seid
!= 0)) {
9457 dev_info(&pf
->pdev
->dev
,
9458 "one, not both seid's are 0: uplink=%d vsi=%d\n",
9459 uplink_seid
, vsi_seid
);
9463 /* make sure there is such a vsi and uplink */
9464 for (vsi_idx
= 0; vsi_idx
< pf
->num_alloc_vsi
; vsi_idx
++)
9465 if (pf
->vsi
[vsi_idx
] && pf
->vsi
[vsi_idx
]->seid
== vsi_seid
)
9467 if (vsi_idx
>= pf
->num_alloc_vsi
&& vsi_seid
!= 0) {
9468 dev_info(&pf
->pdev
->dev
, "vsi seid %d not found\n",
9473 if (uplink_seid
&& uplink_seid
!= pf
->mac_seid
) {
9474 for (veb_idx
= 0; veb_idx
< I40E_MAX_VEB
; veb_idx
++) {
9475 if (pf
->veb
[veb_idx
] &&
9476 pf
->veb
[veb_idx
]->seid
== uplink_seid
) {
9477 uplink_veb
= pf
->veb
[veb_idx
];
9482 dev_info(&pf
->pdev
->dev
,
9483 "uplink seid %d not found\n", uplink_seid
);
9488 /* get veb sw struct */
9489 veb_idx
= i40e_veb_mem_alloc(pf
);
9492 veb
= pf
->veb
[veb_idx
];
9494 veb
->uplink_seid
= uplink_seid
;
9495 veb
->veb_idx
= (uplink_veb
? uplink_veb
->idx
: I40E_NO_VEB
);
9496 veb
->enabled_tc
= (enabled_tc
? enabled_tc
: 0x1);
9498 /* create the VEB in the switch */
9499 ret
= i40e_add_veb(veb
, pf
->vsi
[vsi_idx
]);
9502 if (vsi_idx
== pf
->lan_vsi
)
9503 pf
->lan_veb
= veb
->idx
;
9508 i40e_veb_clear(veb
);
9514 * i40e_setup_pf_switch_element - set PF vars based on switch type
9515 * @pf: board private structure
9516 * @ele: element we are building info from
9517 * @num_reported: total number of elements
9518 * @printconfig: should we print the contents
9520 * helper function to assist in extracting a few useful SEID values.
9522 static void i40e_setup_pf_switch_element(struct i40e_pf
*pf
,
9523 struct i40e_aqc_switch_config_element_resp
*ele
,
9524 u16 num_reported
, bool printconfig
)
9526 u16 downlink_seid
= le16_to_cpu(ele
->downlink_seid
);
9527 u16 uplink_seid
= le16_to_cpu(ele
->uplink_seid
);
9528 u8 element_type
= ele
->element_type
;
9529 u16 seid
= le16_to_cpu(ele
->seid
);
9532 dev_info(&pf
->pdev
->dev
,
9533 "type=%d seid=%d uplink=%d downlink=%d\n",
9534 element_type
, seid
, uplink_seid
, downlink_seid
);
9536 switch (element_type
) {
9537 case I40E_SWITCH_ELEMENT_TYPE_MAC
:
9538 pf
->mac_seid
= seid
;
9540 case I40E_SWITCH_ELEMENT_TYPE_VEB
:
9542 if (uplink_seid
!= pf
->mac_seid
)
9544 if (pf
->lan_veb
== I40E_NO_VEB
) {
9547 /* find existing or else empty VEB */
9548 for (v
= 0; v
< I40E_MAX_VEB
; v
++) {
9549 if (pf
->veb
[v
] && (pf
->veb
[v
]->seid
== seid
)) {
9554 if (pf
->lan_veb
== I40E_NO_VEB
) {
9555 v
= i40e_veb_mem_alloc(pf
);
9562 pf
->veb
[pf
->lan_veb
]->seid
= seid
;
9563 pf
->veb
[pf
->lan_veb
]->uplink_seid
= pf
->mac_seid
;
9564 pf
->veb
[pf
->lan_veb
]->pf
= pf
;
9565 pf
->veb
[pf
->lan_veb
]->veb_idx
= I40E_NO_VEB
;
9567 case I40E_SWITCH_ELEMENT_TYPE_VSI
:
9568 if (num_reported
!= 1)
9570 /* This is immediately after a reset so we can assume this is
9573 pf
->mac_seid
= uplink_seid
;
9574 pf
->pf_seid
= downlink_seid
;
9575 pf
->main_vsi_seid
= seid
;
9577 dev_info(&pf
->pdev
->dev
,
9578 "pf_seid=%d main_vsi_seid=%d\n",
9579 pf
->pf_seid
, pf
->main_vsi_seid
);
9581 case I40E_SWITCH_ELEMENT_TYPE_PF
:
9582 case I40E_SWITCH_ELEMENT_TYPE_VF
:
9583 case I40E_SWITCH_ELEMENT_TYPE_EMP
:
9584 case I40E_SWITCH_ELEMENT_TYPE_BMC
:
9585 case I40E_SWITCH_ELEMENT_TYPE_PE
:
9586 case I40E_SWITCH_ELEMENT_TYPE_PA
:
9587 /* ignore these for now */
9590 dev_info(&pf
->pdev
->dev
, "unknown element type=%d seid=%d\n",
9591 element_type
, seid
);
9597 * i40e_fetch_switch_configuration - Get switch config from firmware
9598 * @pf: board private structure
9599 * @printconfig: should we print the contents
9601 * Get the current switch configuration from the device and
9602 * extract a few useful SEID values.
9604 int i40e_fetch_switch_configuration(struct i40e_pf
*pf
, bool printconfig
)
9606 struct i40e_aqc_get_switch_config_resp
*sw_config
;
9612 aq_buf
= kzalloc(I40E_AQ_LARGE_BUF
, GFP_KERNEL
);
9616 sw_config
= (struct i40e_aqc_get_switch_config_resp
*)aq_buf
;
9618 u16 num_reported
, num_total
;
9620 ret
= i40e_aq_get_switch_config(&pf
->hw
, sw_config
,
9624 dev_info(&pf
->pdev
->dev
,
9625 "get switch config failed err %s aq_err %s\n",
9626 i40e_stat_str(&pf
->hw
, ret
),
9627 i40e_aq_str(&pf
->hw
,
9628 pf
->hw
.aq
.asq_last_status
));
9633 num_reported
= le16_to_cpu(sw_config
->header
.num_reported
);
9634 num_total
= le16_to_cpu(sw_config
->header
.num_total
);
9637 dev_info(&pf
->pdev
->dev
,
9638 "header: %d reported %d total\n",
9639 num_reported
, num_total
);
9641 for (i
= 0; i
< num_reported
; i
++) {
9642 struct i40e_aqc_switch_config_element_resp
*ele
=
9643 &sw_config
->element
[i
];
9645 i40e_setup_pf_switch_element(pf
, ele
, num_reported
,
9648 } while (next_seid
!= 0);
9655 * i40e_setup_pf_switch - Setup the HW switch on startup or after reset
9656 * @pf: board private structure
9657 * @reinit: if the Main VSI needs to re-initialized.
9659 * Returns 0 on success, negative value on failure
9661 static int i40e_setup_pf_switch(struct i40e_pf
*pf
, bool reinit
)
9665 /* find out what's out there already */
9666 ret
= i40e_fetch_switch_configuration(pf
, false);
9668 dev_info(&pf
->pdev
->dev
,
9669 "couldn't fetch switch config, err %s aq_err %s\n",
9670 i40e_stat_str(&pf
->hw
, ret
),
9671 i40e_aq_str(&pf
->hw
, pf
->hw
.aq
.asq_last_status
));
9674 i40e_pf_reset_stats(pf
);
9676 /* first time setup */
9677 if (pf
->lan_vsi
== I40E_NO_VSI
|| reinit
) {
9678 struct i40e_vsi
*vsi
= NULL
;
9681 /* Set up the PF VSI associated with the PF's main VSI
9682 * that is already in the HW switch
9684 if (pf
->lan_veb
!= I40E_NO_VEB
&& pf
->veb
[pf
->lan_veb
])
9685 uplink_seid
= pf
->veb
[pf
->lan_veb
]->seid
;
9687 uplink_seid
= pf
->mac_seid
;
9688 if (pf
->lan_vsi
== I40E_NO_VSI
)
9689 vsi
= i40e_vsi_setup(pf
, I40E_VSI_MAIN
, uplink_seid
, 0);
9691 vsi
= i40e_vsi_reinit_setup(pf
->vsi
[pf
->lan_vsi
]);
9693 dev_info(&pf
->pdev
->dev
, "setup of MAIN VSI failed\n");
9694 i40e_fdir_teardown(pf
);
9698 /* force a reset of TC and queue layout configurations */
9699 u8 enabled_tc
= pf
->vsi
[pf
->lan_vsi
]->tc_config
.enabled_tc
;
9700 pf
->vsi
[pf
->lan_vsi
]->tc_config
.enabled_tc
= 0;
9701 pf
->vsi
[pf
->lan_vsi
]->seid
= pf
->main_vsi_seid
;
9702 i40e_vsi_config_tc(pf
->vsi
[pf
->lan_vsi
], enabled_tc
);
9704 i40e_vlan_stripping_disable(pf
->vsi
[pf
->lan_vsi
]);
9706 i40e_fdir_sb_setup(pf
);
9708 /* Setup static PF queue filter control settings */
9709 ret
= i40e_setup_pf_filter_control(pf
);
9711 dev_info(&pf
->pdev
->dev
, "setup_pf_filter_control failed: %d\n",
9713 /* Failure here should not stop continuing other steps */
9716 /* enable RSS in the HW, even for only one queue, as the stack can use
9719 if ((pf
->flags
& I40E_FLAG_RSS_ENABLED
))
9720 i40e_config_rss(pf
);
9722 /* fill in link information and enable LSE reporting */
9723 i40e_aq_get_link_info(&pf
->hw
, true, NULL
, NULL
);
9724 i40e_link_event(pf
);
9726 /* Initialize user-specific link properties */
9727 pf
->fc_autoneg_status
= ((pf
->hw
.phy
.link_info
.an_info
&
9728 I40E_AQ_AN_COMPLETED
) ? true : false);
9736 * i40e_determine_queue_usage - Work out queue distribution
9737 * @pf: board private structure
9739 static void i40e_determine_queue_usage(struct i40e_pf
*pf
)
9743 pf
->num_lan_qps
= 0;
9745 pf
->num_fcoe_qps
= 0;
9748 /* Find the max queues to be put into basic use. We'll always be
9749 * using TC0, whether or not DCB is running, and TC0 will get the
9752 queues_left
= pf
->hw
.func_caps
.num_tx_qp
;
9754 if ((queues_left
== 1) ||
9755 !(pf
->flags
& I40E_FLAG_MSIX_ENABLED
)) {
9756 /* one qp for PF, no queues for anything else */
9758 pf
->rss_size
= pf
->num_lan_qps
= 1;
9760 /* make sure all the fancies are disabled */
9761 pf
->flags
&= ~(I40E_FLAG_RSS_ENABLED
|
9763 I40E_FLAG_FCOE_ENABLED
|
9765 I40E_FLAG_FD_SB_ENABLED
|
9766 I40E_FLAG_FD_ATR_ENABLED
|
9767 I40E_FLAG_DCB_CAPABLE
|
9768 I40E_FLAG_SRIOV_ENABLED
|
9769 I40E_FLAG_VMDQ_ENABLED
);
9770 } else if (!(pf
->flags
& (I40E_FLAG_RSS_ENABLED
|
9771 I40E_FLAG_FD_SB_ENABLED
|
9772 I40E_FLAG_FD_ATR_ENABLED
|
9773 I40E_FLAG_DCB_CAPABLE
))) {
9775 pf
->rss_size
= pf
->num_lan_qps
= 1;
9776 queues_left
-= pf
->num_lan_qps
;
9778 pf
->flags
&= ~(I40E_FLAG_RSS_ENABLED
|
9780 I40E_FLAG_FCOE_ENABLED
|
9782 I40E_FLAG_FD_SB_ENABLED
|
9783 I40E_FLAG_FD_ATR_ENABLED
|
9784 I40E_FLAG_DCB_ENABLED
|
9785 I40E_FLAG_VMDQ_ENABLED
);
9787 /* Not enough queues for all TCs */
9788 if ((pf
->flags
& I40E_FLAG_DCB_CAPABLE
) &&
9789 (queues_left
< I40E_MAX_TRAFFIC_CLASS
)) {
9790 pf
->flags
&= ~I40E_FLAG_DCB_CAPABLE
;
9791 dev_info(&pf
->pdev
->dev
, "not enough queues for DCB. DCB is disabled.\n");
9793 pf
->num_lan_qps
= max_t(int, pf
->rss_size_max
,
9795 pf
->num_lan_qps
= min_t(int, pf
->num_lan_qps
,
9796 pf
->hw
.func_caps
.num_tx_qp
);
9798 queues_left
-= pf
->num_lan_qps
;
9802 if (pf
->flags
& I40E_FLAG_FCOE_ENABLED
) {
9803 if (I40E_DEFAULT_FCOE
<= queues_left
) {
9804 pf
->num_fcoe_qps
= I40E_DEFAULT_FCOE
;
9805 } else if (I40E_MINIMUM_FCOE
<= queues_left
) {
9806 pf
->num_fcoe_qps
= I40E_MINIMUM_FCOE
;
9808 pf
->num_fcoe_qps
= 0;
9809 pf
->flags
&= ~I40E_FLAG_FCOE_ENABLED
;
9810 dev_info(&pf
->pdev
->dev
, "not enough queues for FCoE. FCoE feature will be disabled\n");
9813 queues_left
-= pf
->num_fcoe_qps
;
9817 if (pf
->flags
& I40E_FLAG_FD_SB_ENABLED
) {
9818 if (queues_left
> 1) {
9819 queues_left
-= 1; /* save 1 queue for FD */
9821 pf
->flags
&= ~I40E_FLAG_FD_SB_ENABLED
;
9822 dev_info(&pf
->pdev
->dev
, "not enough queues for Flow Director. Flow Director feature is disabled\n");
9826 if ((pf
->flags
& I40E_FLAG_SRIOV_ENABLED
) &&
9827 pf
->num_vf_qps
&& pf
->num_req_vfs
&& queues_left
) {
9828 pf
->num_req_vfs
= min_t(int, pf
->num_req_vfs
,
9829 (queues_left
/ pf
->num_vf_qps
));
9830 queues_left
-= (pf
->num_req_vfs
* pf
->num_vf_qps
);
9833 if ((pf
->flags
& I40E_FLAG_VMDQ_ENABLED
) &&
9834 pf
->num_vmdq_vsis
&& pf
->num_vmdq_qps
&& queues_left
) {
9835 pf
->num_vmdq_vsis
= min_t(int, pf
->num_vmdq_vsis
,
9836 (queues_left
/ pf
->num_vmdq_qps
));
9837 queues_left
-= (pf
->num_vmdq_vsis
* pf
->num_vmdq_qps
);
9840 pf
->queues_left
= queues_left
;
9842 dev_info(&pf
->pdev
->dev
, "fcoe queues = %d\n", pf
->num_fcoe_qps
);
9847 * i40e_setup_pf_filter_control - Setup PF static filter control
9848 * @pf: PF to be setup
9850 * i40e_setup_pf_filter_control sets up a PF's initial filter control
9851 * settings. If PE/FCoE are enabled then it will also set the per PF
9852 * based filter sizes required for them. It also enables Flow director,
9853 * ethertype and macvlan type filter settings for the pf.
9855 * Returns 0 on success, negative on failure
9857 static int i40e_setup_pf_filter_control(struct i40e_pf
*pf
)
9859 struct i40e_filter_control_settings
*settings
= &pf
->filter_settings
;
9861 settings
->hash_lut_size
= I40E_HASH_LUT_SIZE_128
;
9863 /* Flow Director is enabled */
9864 if (pf
->flags
& (I40E_FLAG_FD_SB_ENABLED
| I40E_FLAG_FD_ATR_ENABLED
))
9865 settings
->enable_fdir
= true;
9867 /* Ethtype and MACVLAN filters enabled for PF */
9868 settings
->enable_ethtype
= true;
9869 settings
->enable_macvlan
= true;
9871 if (i40e_set_filter_control(&pf
->hw
, settings
))
9877 #define INFO_STRING_LEN 255
9878 static void i40e_print_features(struct i40e_pf
*pf
)
9880 struct i40e_hw
*hw
= &pf
->hw
;
9883 string
= kzalloc(INFO_STRING_LEN
, GFP_KERNEL
);
9885 dev_err(&pf
->pdev
->dev
, "Features string allocation failed\n");
9891 buf
+= sprintf(string
, "Features: PF-id[%d] ", hw
->pf_id
);
9892 #ifdef CONFIG_PCI_IOV
9893 buf
+= sprintf(buf
, "VFs: %d ", pf
->num_req_vfs
);
9895 buf
+= sprintf(buf
, "VSIs: %d QP: %d RX: %s ",
9896 pf
->hw
.func_caps
.num_vsis
,
9897 pf
->vsi
[pf
->lan_vsi
]->num_queue_pairs
,
9898 pf
->flags
& I40E_FLAG_RX_PS_ENABLED
? "PS" : "1BUF");
9900 if (pf
->flags
& I40E_FLAG_RSS_ENABLED
)
9901 buf
+= sprintf(buf
, "RSS ");
9902 if (pf
->flags
& I40E_FLAG_FD_ATR_ENABLED
)
9903 buf
+= sprintf(buf
, "FD_ATR ");
9904 if (pf
->flags
& I40E_FLAG_FD_SB_ENABLED
) {
9905 buf
+= sprintf(buf
, "FD_SB ");
9906 buf
+= sprintf(buf
, "NTUPLE ");
9908 if (pf
->flags
& I40E_FLAG_DCB_CAPABLE
)
9909 buf
+= sprintf(buf
, "DCB ");
9910 if (pf
->flags
& I40E_FLAG_PTP
)
9911 buf
+= sprintf(buf
, "PTP ");
9913 if (pf
->flags
& I40E_FLAG_FCOE_ENABLED
)
9914 buf
+= sprintf(buf
, "FCOE ");
9917 BUG_ON(buf
> (string
+ INFO_STRING_LEN
));
9918 dev_info(&pf
->pdev
->dev
, "%s\n", string
);
9923 * i40e_probe - Device initialization routine
9924 * @pdev: PCI device information struct
9925 * @ent: entry in i40e_pci_tbl
9927 * i40e_probe initializes a PF identified by a pci_dev structure.
9928 * The OS initialization, configuring of the PF private structure,
9929 * and a hardware reset occur.
9931 * Returns 0 on success, negative on failure
9933 static int i40e_probe(struct pci_dev
*pdev
, const struct pci_device_id
*ent
)
9935 struct i40e_aq_get_phy_abilities_resp abilities
;
9938 static u16 pfs_found
;
9945 err
= pci_enable_device_mem(pdev
);
9949 /* set up for high or low dma */
9950 err
= dma_set_mask_and_coherent(&pdev
->dev
, DMA_BIT_MASK(64));
9952 err
= dma_set_mask_and_coherent(&pdev
->dev
, DMA_BIT_MASK(32));
9955 "DMA configuration failed: 0x%x\n", err
);
9960 /* set up pci connections */
9961 err
= pci_request_selected_regions(pdev
, pci_select_bars(pdev
,
9962 IORESOURCE_MEM
), i40e_driver_name
);
9964 dev_info(&pdev
->dev
,
9965 "pci_request_selected_regions failed %d\n", err
);
9969 pci_enable_pcie_error_reporting(pdev
);
9970 pci_set_master(pdev
);
9972 /* Now that we have a PCI connection, we need to do the
9973 * low level device setup. This is primarily setting up
9974 * the Admin Queue structures and then querying for the
9975 * device's current profile information.
9977 pf
= kzalloc(sizeof(*pf
), GFP_KERNEL
);
9984 set_bit(__I40E_DOWN
, &pf
->state
);
9989 pf
->ioremap_len
= min_t(int, pci_resource_len(pdev
, 0),
9990 I40E_MAX_CSR_SPACE
);
9992 hw
->hw_addr
= ioremap(pci_resource_start(pdev
, 0), pf
->ioremap_len
);
9995 dev_info(&pdev
->dev
, "ioremap(0x%04x, 0x%04x) failed: 0x%x\n",
9996 (unsigned int)pci_resource_start(pdev
, 0),
9997 pf
->ioremap_len
, err
);
10000 hw
->vendor_id
= pdev
->vendor
;
10001 hw
->device_id
= pdev
->device
;
10002 pci_read_config_byte(pdev
, PCI_REVISION_ID
, &hw
->revision_id
);
10003 hw
->subsystem_vendor_id
= pdev
->subsystem_vendor
;
10004 hw
->subsystem_device_id
= pdev
->subsystem_device
;
10005 hw
->bus
.device
= PCI_SLOT(pdev
->devfn
);
10006 hw
->bus
.func
= PCI_FUNC(pdev
->devfn
);
10007 pf
->instance
= pfs_found
;
10010 pf
->msg_enable
= pf
->hw
.debug_mask
;
10011 pf
->msg_enable
= debug
;
10014 /* do a special CORER for clearing PXE mode once at init */
10015 if (hw
->revision_id
== 0 &&
10016 (rd32(hw
, I40E_GLLAN_RCTL_0
) & I40E_GLLAN_RCTL_0_PXE_MODE_MASK
)) {
10017 wr32(hw
, I40E_GLGEN_RTRIG
, I40E_GLGEN_RTRIG_CORER_MASK
);
10022 i40e_clear_pxe_mode(hw
);
10025 /* Reset here to make sure all is clean and to define PF 'n' */
10027 err
= i40e_pf_reset(hw
);
10029 dev_info(&pdev
->dev
, "Initial pf_reset failed: %d\n", err
);
10034 hw
->aq
.num_arq_entries
= I40E_AQ_LEN
;
10035 hw
->aq
.num_asq_entries
= I40E_AQ_LEN
;
10036 hw
->aq
.arq_buf_size
= I40E_MAX_AQ_BUF_SIZE
;
10037 hw
->aq
.asq_buf_size
= I40E_MAX_AQ_BUF_SIZE
;
10038 pf
->adminq_work_limit
= I40E_AQ_WORK_LIMIT
;
10040 snprintf(pf
->int_name
, sizeof(pf
->int_name
) - 1,
10042 dev_driver_string(&pf
->pdev
->dev
), dev_name(&pdev
->dev
));
10044 err
= i40e_init_shared_code(hw
);
10046 dev_warn(&pdev
->dev
, "unidentified MAC or BLANK NVM: %d\n",
10051 /* set up a default setting for link flow control */
10052 pf
->hw
.fc
.requested_mode
= I40E_FC_NONE
;
10054 err
= i40e_init_adminq(hw
);
10055 dev_info(&pdev
->dev
, "%s\n", i40e_fw_version_str(hw
));
10057 dev_info(&pdev
->dev
,
10058 "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");
10062 if (hw
->aq
.api_maj_ver
== I40E_FW_API_VERSION_MAJOR
&&
10063 hw
->aq
.api_min_ver
> I40E_FW_API_VERSION_MINOR
)
10064 dev_info(&pdev
->dev
,
10065 "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");
10066 else if (hw
->aq
.api_maj_ver
< I40E_FW_API_VERSION_MAJOR
||
10067 hw
->aq
.api_min_ver
< (I40E_FW_API_VERSION_MINOR
- 1))
10068 dev_info(&pdev
->dev
,
10069 "The driver for the device detected an older version of the NVM image than expected. Please update the NVM image.\n");
10071 i40e_verify_eeprom(pf
);
10073 /* Rev 0 hardware was never productized */
10074 if (hw
->revision_id
< 1)
10075 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");
10077 i40e_clear_pxe_mode(hw
);
10078 err
= i40e_get_capabilities(pf
);
10080 goto err_adminq_setup
;
10082 err
= i40e_sw_init(pf
);
10084 dev_info(&pdev
->dev
, "sw_init failed: %d\n", err
);
10088 err
= i40e_init_lan_hmc(hw
, hw
->func_caps
.num_tx_qp
,
10089 hw
->func_caps
.num_rx_qp
,
10090 pf
->fcoe_hmc_cntx_num
, pf
->fcoe_hmc_filt_num
);
10092 dev_info(&pdev
->dev
, "init_lan_hmc failed: %d\n", err
);
10093 goto err_init_lan_hmc
;
10096 err
= i40e_configure_lan_hmc(hw
, I40E_HMC_MODEL_DIRECT_ONLY
);
10098 dev_info(&pdev
->dev
, "configure_lan_hmc failed: %d\n", err
);
10100 goto err_configure_lan_hmc
;
10103 /* Disable LLDP for NICs that have firmware versions lower than v4.3.
10104 * Ignore error return codes because if it was already disabled via
10105 * hardware settings this will fail
10107 if (((pf
->hw
.aq
.fw_maj_ver
== 4) && (pf
->hw
.aq
.fw_min_ver
< 3)) ||
10108 (pf
->hw
.aq
.fw_maj_ver
< 4)) {
10109 dev_info(&pdev
->dev
, "Stopping firmware LLDP agent.\n");
10110 i40e_aq_stop_lldp(hw
, true, NULL
);
10113 i40e_get_mac_addr(hw
, hw
->mac
.addr
);
10114 if (!is_valid_ether_addr(hw
->mac
.addr
)) {
10115 dev_info(&pdev
->dev
, "invalid MAC address %pM\n", hw
->mac
.addr
);
10119 dev_info(&pdev
->dev
, "MAC address: %pM\n", hw
->mac
.addr
);
10120 ether_addr_copy(hw
->mac
.perm_addr
, hw
->mac
.addr
);
10121 i40e_get_port_mac_addr(hw
, hw
->mac
.port_addr
);
10122 if (is_valid_ether_addr(hw
->mac
.port_addr
))
10123 pf
->flags
|= I40E_FLAG_PORT_ID_VALID
;
10125 err
= i40e_get_san_mac_addr(hw
, hw
->mac
.san_addr
);
10127 dev_info(&pdev
->dev
,
10128 "(non-fatal) SAN MAC retrieval failed: %d\n", err
);
10129 if (!is_valid_ether_addr(hw
->mac
.san_addr
)) {
10130 dev_warn(&pdev
->dev
, "invalid SAN MAC address %pM, falling back to LAN MAC\n",
10132 ether_addr_copy(hw
->mac
.san_addr
, hw
->mac
.addr
);
10134 dev_info(&pf
->pdev
->dev
, "SAN MAC: %pM\n", hw
->mac
.san_addr
);
10135 #endif /* I40E_FCOE */
10137 pci_set_drvdata(pdev
, pf
);
10138 pci_save_state(pdev
);
10139 #ifdef CONFIG_I40E_DCB
10140 err
= i40e_init_pf_dcb(pf
);
10142 dev_info(&pdev
->dev
, "DCB init failed %d, disabled\n", err
);
10143 pf
->flags
&= ~I40E_FLAG_DCB_CAPABLE
;
10144 /* Continue without DCB enabled */
10146 #endif /* CONFIG_I40E_DCB */
10148 /* set up periodic task facility */
10149 setup_timer(&pf
->service_timer
, i40e_service_timer
, (unsigned long)pf
);
10150 pf
->service_timer_period
= HZ
;
10152 INIT_WORK(&pf
->service_task
, i40e_service_task
);
10153 clear_bit(__I40E_SERVICE_SCHED
, &pf
->state
);
10154 pf
->flags
|= I40E_FLAG_NEED_LINK_UPDATE
;
10156 /* NVM bit on means WoL disabled for the port */
10157 i40e_read_nvm_word(hw
, I40E_SR_NVM_WAKE_ON_LAN
, &wol_nvm_bits
);
10158 if ((1 << hw
->port
) & wol_nvm_bits
|| hw
->partition_id
!= 1)
10159 pf
->wol_en
= false;
10162 device_set_wakeup_enable(&pf
->pdev
->dev
, pf
->wol_en
);
10164 /* set up the main switch operations */
10165 i40e_determine_queue_usage(pf
);
10166 err
= i40e_init_interrupt_scheme(pf
);
10168 goto err_switch_setup
;
10170 /* The number of VSIs reported by the FW is the minimum guaranteed
10171 * to us; HW supports far more and we share the remaining pool with
10172 * the other PFs. We allocate space for more than the guarantee with
10173 * the understanding that we might not get them all later.
10175 if (pf
->hw
.func_caps
.num_vsis
< I40E_MIN_VSI_ALLOC
)
10176 pf
->num_alloc_vsi
= I40E_MIN_VSI_ALLOC
;
10178 pf
->num_alloc_vsi
= pf
->hw
.func_caps
.num_vsis
;
10180 /* Set up the *vsi struct and our local tracking of the MAIN PF vsi. */
10181 len
= sizeof(struct i40e_vsi
*) * pf
->num_alloc_vsi
;
10182 pf
->vsi
= kzalloc(len
, GFP_KERNEL
);
10185 goto err_switch_setup
;
10188 #ifdef CONFIG_PCI_IOV
10189 /* prep for VF support */
10190 if ((pf
->flags
& I40E_FLAG_SRIOV_ENABLED
) &&
10191 (pf
->flags
& I40E_FLAG_MSIX_ENABLED
) &&
10192 !test_bit(__I40E_BAD_EEPROM
, &pf
->state
)) {
10193 if (pci_num_vf(pdev
))
10194 pf
->flags
|= I40E_FLAG_VEB_MODE_ENABLED
;
10197 err
= i40e_setup_pf_switch(pf
, false);
10199 dev_info(&pdev
->dev
, "setup_pf_switch failed: %d\n", err
);
10202 /* if FDIR VSI was set up, start it now */
10203 for (i
= 0; i
< pf
->num_alloc_vsi
; i
++) {
10204 if (pf
->vsi
[i
] && pf
->vsi
[i
]->type
== I40E_VSI_FDIR
) {
10205 i40e_vsi_open(pf
->vsi
[i
]);
10210 /* driver is only interested in link up/down and module qualification
10211 * reports from firmware
10213 err
= i40e_aq_set_phy_int_mask(&pf
->hw
,
10214 I40E_AQ_EVENT_LINK_UPDOWN
|
10215 I40E_AQ_EVENT_MODULE_QUAL_FAIL
, NULL
);
10217 dev_info(&pf
->pdev
->dev
, "set phy mask fail, err %s aq_err %s\n",
10218 i40e_stat_str(&pf
->hw
, err
),
10219 i40e_aq_str(&pf
->hw
, pf
->hw
.aq
.asq_last_status
));
10221 if (((pf
->hw
.aq
.fw_maj_ver
== 4) && (pf
->hw
.aq
.fw_min_ver
< 33)) ||
10222 (pf
->hw
.aq
.fw_maj_ver
< 4)) {
10224 err
= i40e_aq_set_link_restart_an(&pf
->hw
, true, NULL
);
10226 dev_info(&pf
->pdev
->dev
, "link restart failed, err %s aq_err %s\n",
10227 i40e_stat_str(&pf
->hw
, err
),
10228 i40e_aq_str(&pf
->hw
,
10229 pf
->hw
.aq
.asq_last_status
));
10231 /* The main driver is (mostly) up and happy. We need to set this state
10232 * before setting up the misc vector or we get a race and the vector
10233 * ends up disabled forever.
10235 clear_bit(__I40E_DOWN
, &pf
->state
);
10237 /* In case of MSIX we are going to setup the misc vector right here
10238 * to handle admin queue events etc. In case of legacy and MSI
10239 * the misc functionality and queue processing is combined in
10240 * the same vector and that gets setup at open.
10242 if (pf
->flags
& I40E_FLAG_MSIX_ENABLED
) {
10243 err
= i40e_setup_misc_vector(pf
);
10245 dev_info(&pdev
->dev
,
10246 "setup of misc vector failed: %d\n", err
);
10251 #ifdef CONFIG_PCI_IOV
10252 /* prep for VF support */
10253 if ((pf
->flags
& I40E_FLAG_SRIOV_ENABLED
) &&
10254 (pf
->flags
& I40E_FLAG_MSIX_ENABLED
) &&
10255 !test_bit(__I40E_BAD_EEPROM
, &pf
->state
)) {
10258 /* disable link interrupts for VFs */
10259 val
= rd32(hw
, I40E_PFGEN_PORTMDIO_NUM
);
10260 val
&= ~I40E_PFGEN_PORTMDIO_NUM_VFLINK_STAT_ENA_MASK
;
10261 wr32(hw
, I40E_PFGEN_PORTMDIO_NUM
, val
);
10264 if (pci_num_vf(pdev
)) {
10265 dev_info(&pdev
->dev
,
10266 "Active VFs found, allocating resources.\n");
10267 err
= i40e_alloc_vfs(pf
, pci_num_vf(pdev
));
10269 dev_info(&pdev
->dev
,
10270 "Error %d allocating resources for existing VFs\n",
10274 #endif /* CONFIG_PCI_IOV */
10278 i40e_dbg_pf_init(pf
);
10280 /* tell the firmware that we're starting */
10281 i40e_send_version(pf
);
10283 /* since everything's happy, start the service_task timer */
10284 mod_timer(&pf
->service_timer
,
10285 round_jiffies(jiffies
+ pf
->service_timer_period
));
10288 /* create FCoE interface */
10289 i40e_fcoe_vsi_setup(pf
);
10292 /* Get the negotiated link width and speed from PCI config space */
10293 pcie_capability_read_word(pf
->pdev
, PCI_EXP_LNKSTA
, &link_status
);
10295 i40e_set_pci_config_data(hw
, link_status
);
10297 dev_info(&pdev
->dev
, "PCI-Express: %s %s\n",
10298 (hw
->bus
.speed
== i40e_bus_speed_8000
? "Speed 8.0GT/s" :
10299 hw
->bus
.speed
== i40e_bus_speed_5000
? "Speed 5.0GT/s" :
10300 hw
->bus
.speed
== i40e_bus_speed_2500
? "Speed 2.5GT/s" :
10302 (hw
->bus
.width
== i40e_bus_width_pcie_x8
? "Width x8" :
10303 hw
->bus
.width
== i40e_bus_width_pcie_x4
? "Width x4" :
10304 hw
->bus
.width
== i40e_bus_width_pcie_x2
? "Width x2" :
10305 hw
->bus
.width
== i40e_bus_width_pcie_x1
? "Width x1" :
10308 if (hw
->bus
.width
< i40e_bus_width_pcie_x8
||
10309 hw
->bus
.speed
< i40e_bus_speed_8000
) {
10310 dev_warn(&pdev
->dev
, "PCI-Express bandwidth available for this device may be insufficient for optimal performance.\n");
10311 dev_warn(&pdev
->dev
, "Please move the device to a different PCI-e link with more lanes and/or higher transfer rate.\n");
10314 /* get the requested speeds from the fw */
10315 err
= i40e_aq_get_phy_capabilities(hw
, false, false, &abilities
, NULL
);
10317 dev_info(&pf
->pdev
->dev
,
10318 "get phy capabilities failed, err %s aq_err %s, advertised speed settings may not be correct\n",
10319 i40e_stat_str(&pf
->hw
, err
),
10320 i40e_aq_str(&pf
->hw
, pf
->hw
.aq
.asq_last_status
));
10321 pf
->hw
.phy
.link_info
.requested_speeds
= abilities
.link_speed
;
10323 /* print a string summarizing features */
10324 i40e_print_features(pf
);
10328 /* Unwind what we've done if something failed in the setup */
10330 set_bit(__I40E_DOWN
, &pf
->state
);
10331 i40e_clear_interrupt_scheme(pf
);
10334 i40e_reset_interrupt_capability(pf
);
10335 del_timer_sync(&pf
->service_timer
);
10337 err_configure_lan_hmc
:
10338 (void)i40e_shutdown_lan_hmc(hw
);
10340 kfree(pf
->qp_pile
);
10343 (void)i40e_shutdown_adminq(hw
);
10345 iounmap(hw
->hw_addr
);
10349 pci_disable_pcie_error_reporting(pdev
);
10350 pci_release_selected_regions(pdev
,
10351 pci_select_bars(pdev
, IORESOURCE_MEM
));
10354 pci_disable_device(pdev
);
10359 * i40e_remove - Device removal routine
10360 * @pdev: PCI device information struct
10362 * i40e_remove is called by the PCI subsystem to alert the driver
10363 * that is should release a PCI device. This could be caused by a
10364 * Hot-Plug event, or because the driver is going to be removed from
10367 static void i40e_remove(struct pci_dev
*pdev
)
10369 struct i40e_pf
*pf
= pci_get_drvdata(pdev
);
10370 i40e_status ret_code
;
10373 i40e_dbg_pf_exit(pf
);
10377 /* no more scheduling of any task */
10378 set_bit(__I40E_DOWN
, &pf
->state
);
10379 del_timer_sync(&pf
->service_timer
);
10380 cancel_work_sync(&pf
->service_task
);
10381 i40e_fdir_teardown(pf
);
10383 if (pf
->flags
& I40E_FLAG_SRIOV_ENABLED
) {
10385 pf
->flags
&= ~I40E_FLAG_SRIOV_ENABLED
;
10388 i40e_fdir_teardown(pf
);
10390 /* If there is a switch structure or any orphans, remove them.
10391 * This will leave only the PF's VSI remaining.
10393 for (i
= 0; i
< I40E_MAX_VEB
; i
++) {
10397 if (pf
->veb
[i
]->uplink_seid
== pf
->mac_seid
||
10398 pf
->veb
[i
]->uplink_seid
== 0)
10399 i40e_switch_branch_release(pf
->veb
[i
]);
10402 /* Now we can shutdown the PF's VSI, just before we kill
10405 if (pf
->vsi
[pf
->lan_vsi
])
10406 i40e_vsi_release(pf
->vsi
[pf
->lan_vsi
]);
10408 /* shutdown and destroy the HMC */
10409 if (pf
->hw
.hmc
.hmc_obj
) {
10410 ret_code
= i40e_shutdown_lan_hmc(&pf
->hw
);
10412 dev_warn(&pdev
->dev
,
10413 "Failed to destroy the HMC resources: %d\n",
10417 /* shutdown the adminq */
10418 ret_code
= i40e_shutdown_adminq(&pf
->hw
);
10420 dev_warn(&pdev
->dev
,
10421 "Failed to destroy the Admin Queue resources: %d\n",
10424 /* Clear all dynamic memory lists of rings, q_vectors, and VSIs */
10425 i40e_clear_interrupt_scheme(pf
);
10426 for (i
= 0; i
< pf
->num_alloc_vsi
; i
++) {
10428 i40e_vsi_clear_rings(pf
->vsi
[i
]);
10429 i40e_vsi_clear(pf
->vsi
[i
]);
10434 for (i
= 0; i
< I40E_MAX_VEB
; i
++) {
10439 kfree(pf
->qp_pile
);
10442 iounmap(pf
->hw
.hw_addr
);
10444 pci_release_selected_regions(pdev
,
10445 pci_select_bars(pdev
, IORESOURCE_MEM
));
10447 pci_disable_pcie_error_reporting(pdev
);
10448 pci_disable_device(pdev
);
10452 * i40e_pci_error_detected - warning that something funky happened in PCI land
10453 * @pdev: PCI device information struct
10455 * Called to warn that something happened and the error handling steps
10456 * are in progress. Allows the driver to quiesce things, be ready for
10459 static pci_ers_result_t
i40e_pci_error_detected(struct pci_dev
*pdev
,
10460 enum pci_channel_state error
)
10462 struct i40e_pf
*pf
= pci_get_drvdata(pdev
);
10464 dev_info(&pdev
->dev
, "%s: error %d\n", __func__
, error
);
10466 /* shutdown all operations */
10467 if (!test_bit(__I40E_SUSPENDED
, &pf
->state
)) {
10469 i40e_prep_for_reset(pf
);
10473 /* Request a slot reset */
10474 return PCI_ERS_RESULT_NEED_RESET
;
10478 * i40e_pci_error_slot_reset - a PCI slot reset just happened
10479 * @pdev: PCI device information struct
10481 * Called to find if the driver can work with the device now that
10482 * the pci slot has been reset. If a basic connection seems good
10483 * (registers are readable and have sane content) then return a
10484 * happy little PCI_ERS_RESULT_xxx.
10486 static pci_ers_result_t
i40e_pci_error_slot_reset(struct pci_dev
*pdev
)
10488 struct i40e_pf
*pf
= pci_get_drvdata(pdev
);
10489 pci_ers_result_t result
;
10493 dev_dbg(&pdev
->dev
, "%s\n", __func__
);
10494 if (pci_enable_device_mem(pdev
)) {
10495 dev_info(&pdev
->dev
,
10496 "Cannot re-enable PCI device after reset.\n");
10497 result
= PCI_ERS_RESULT_DISCONNECT
;
10499 pci_set_master(pdev
);
10500 pci_restore_state(pdev
);
10501 pci_save_state(pdev
);
10502 pci_wake_from_d3(pdev
, false);
10504 reg
= rd32(&pf
->hw
, I40E_GLGEN_RTRIG
);
10506 result
= PCI_ERS_RESULT_RECOVERED
;
10508 result
= PCI_ERS_RESULT_DISCONNECT
;
10511 err
= pci_cleanup_aer_uncorrect_error_status(pdev
);
10513 dev_info(&pdev
->dev
,
10514 "pci_cleanup_aer_uncorrect_error_status failed 0x%0x\n",
10516 /* non-fatal, continue */
10523 * i40e_pci_error_resume - restart operations after PCI error recovery
10524 * @pdev: PCI device information struct
10526 * Called to allow the driver to bring things back up after PCI error
10527 * and/or reset recovery has finished.
10529 static void i40e_pci_error_resume(struct pci_dev
*pdev
)
10531 struct i40e_pf
*pf
= pci_get_drvdata(pdev
);
10533 dev_dbg(&pdev
->dev
, "%s\n", __func__
);
10534 if (test_bit(__I40E_SUSPENDED
, &pf
->state
))
10538 i40e_handle_reset_warning(pf
);
10543 * i40e_shutdown - PCI callback for shutting down
10544 * @pdev: PCI device information struct
10546 static void i40e_shutdown(struct pci_dev
*pdev
)
10548 struct i40e_pf
*pf
= pci_get_drvdata(pdev
);
10549 struct i40e_hw
*hw
= &pf
->hw
;
10551 set_bit(__I40E_SUSPENDED
, &pf
->state
);
10552 set_bit(__I40E_DOWN
, &pf
->state
);
10554 i40e_prep_for_reset(pf
);
10557 wr32(hw
, I40E_PFPM_APM
, (pf
->wol_en
? I40E_PFPM_APM_APME_MASK
: 0));
10558 wr32(hw
, I40E_PFPM_WUFC
, (pf
->wol_en
? I40E_PFPM_WUFC_MAG_MASK
: 0));
10560 del_timer_sync(&pf
->service_timer
);
10561 cancel_work_sync(&pf
->service_task
);
10562 i40e_fdir_teardown(pf
);
10565 i40e_prep_for_reset(pf
);
10568 wr32(hw
, I40E_PFPM_APM
,
10569 (pf
->wol_en
? I40E_PFPM_APM_APME_MASK
: 0));
10570 wr32(hw
, I40E_PFPM_WUFC
,
10571 (pf
->wol_en
? I40E_PFPM_WUFC_MAG_MASK
: 0));
10573 i40e_clear_interrupt_scheme(pf
);
10575 if (system_state
== SYSTEM_POWER_OFF
) {
10576 pci_wake_from_d3(pdev
, pf
->wol_en
);
10577 pci_set_power_state(pdev
, PCI_D3hot
);
10583 * i40e_suspend - PCI callback for moving to D3
10584 * @pdev: PCI device information struct
10586 static int i40e_suspend(struct pci_dev
*pdev
, pm_message_t state
)
10588 struct i40e_pf
*pf
= pci_get_drvdata(pdev
);
10589 struct i40e_hw
*hw
= &pf
->hw
;
10591 set_bit(__I40E_SUSPENDED
, &pf
->state
);
10592 set_bit(__I40E_DOWN
, &pf
->state
);
10595 i40e_prep_for_reset(pf
);
10598 wr32(hw
, I40E_PFPM_APM
, (pf
->wol_en
? I40E_PFPM_APM_APME_MASK
: 0));
10599 wr32(hw
, I40E_PFPM_WUFC
, (pf
->wol_en
? I40E_PFPM_WUFC_MAG_MASK
: 0));
10601 pci_wake_from_d3(pdev
, pf
->wol_en
);
10602 pci_set_power_state(pdev
, PCI_D3hot
);
10608 * i40e_resume - PCI callback for waking up from D3
10609 * @pdev: PCI device information struct
10611 static int i40e_resume(struct pci_dev
*pdev
)
10613 struct i40e_pf
*pf
= pci_get_drvdata(pdev
);
10616 pci_set_power_state(pdev
, PCI_D0
);
10617 pci_restore_state(pdev
);
10618 /* pci_restore_state() clears dev->state_saves, so
10619 * call pci_save_state() again to restore it.
10621 pci_save_state(pdev
);
10623 err
= pci_enable_device_mem(pdev
);
10625 dev_err(&pdev
->dev
, "Cannot enable PCI device from suspend\n");
10628 pci_set_master(pdev
);
10630 /* no wakeup events while running */
10631 pci_wake_from_d3(pdev
, false);
10633 /* handling the reset will rebuild the device state */
10634 if (test_and_clear_bit(__I40E_SUSPENDED
, &pf
->state
)) {
10635 clear_bit(__I40E_DOWN
, &pf
->state
);
10637 i40e_reset_and_rebuild(pf
, false);
10645 static const struct pci_error_handlers i40e_err_handler
= {
10646 .error_detected
= i40e_pci_error_detected
,
10647 .slot_reset
= i40e_pci_error_slot_reset
,
10648 .resume
= i40e_pci_error_resume
,
10651 static struct pci_driver i40e_driver
= {
10652 .name
= i40e_driver_name
,
10653 .id_table
= i40e_pci_tbl
,
10654 .probe
= i40e_probe
,
10655 .remove
= i40e_remove
,
10657 .suspend
= i40e_suspend
,
10658 .resume
= i40e_resume
,
10660 .shutdown
= i40e_shutdown
,
10661 .err_handler
= &i40e_err_handler
,
10662 .sriov_configure
= i40e_pci_sriov_configure
,
10666 * i40e_init_module - Driver registration routine
10668 * i40e_init_module is the first routine called when the driver is
10669 * loaded. All it does is register with the PCI subsystem.
10671 static int __init
i40e_init_module(void)
10673 pr_info("%s: %s - version %s\n", i40e_driver_name
,
10674 i40e_driver_string
, i40e_driver_version_str
);
10675 pr_info("%s: %s\n", i40e_driver_name
, i40e_copyright
);
10678 return pci_register_driver(&i40e_driver
);
10680 module_init(i40e_init_module
);
10683 * i40e_exit_module - Driver exit cleanup routine
10685 * i40e_exit_module is called just before the driver is removed
10688 static void __exit
i40e_exit_module(void)
10690 pci_unregister_driver(&i40e_driver
);
10693 module_exit(i40e_exit_module
);