1 /*******************************************************************************
3 * Intel Ethernet Controller XL710 Family Linux Driver
4 * Copyright(c) 2013 - 2016 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 ******************************************************************************/
27 #include <linux/etherdevice.h>
28 #include <linux/of_net.h>
29 #include <linux/pci.h>
33 #include "i40e_diag.h"
34 #if IS_ENABLED(CONFIG_VXLAN)
35 #include <net/vxlan.h>
37 #if IS_ENABLED(CONFIG_GENEVE)
38 #include <net/geneve.h>
41 const char i40e_driver_name
[] = "i40e";
42 static const char i40e_driver_string
[] =
43 "Intel(R) Ethernet Connection XL710 Network Driver";
47 #define DRV_VERSION_MAJOR 1
48 #define DRV_VERSION_MINOR 4
49 #define DRV_VERSION_BUILD 12
50 #define DRV_VERSION __stringify(DRV_VERSION_MAJOR) "." \
51 __stringify(DRV_VERSION_MINOR) "." \
52 __stringify(DRV_VERSION_BUILD) DRV_KERN
53 const char i40e_driver_version_str
[] = DRV_VERSION
;
54 static const char i40e_copyright
[] = "Copyright (c) 2013 - 2014 Intel Corporation.";
56 /* a bit of forward declarations */
57 static void i40e_vsi_reinit_locked(struct i40e_vsi
*vsi
);
58 static void i40e_handle_reset_warning(struct i40e_pf
*pf
);
59 static int i40e_add_vsi(struct i40e_vsi
*vsi
);
60 static int i40e_add_veb(struct i40e_veb
*veb
, struct i40e_vsi
*vsi
);
61 static int i40e_setup_pf_switch(struct i40e_pf
*pf
, bool reinit
);
62 static int i40e_setup_misc_vector(struct i40e_pf
*pf
);
63 static void i40e_determine_queue_usage(struct i40e_pf
*pf
);
64 static int i40e_setup_pf_filter_control(struct i40e_pf
*pf
);
65 static void i40e_fill_rss_lut(struct i40e_pf
*pf
, u8
*lut
,
66 u16 rss_table_size
, u16 rss_size
);
67 static void i40e_fdir_sb_setup(struct i40e_pf
*pf
);
68 static int i40e_veb_get_bw_info(struct i40e_veb
*veb
);
70 /* i40e_pci_tbl - PCI Device ID Table
72 * Last entry must be all 0s
74 * { Vendor ID, Device ID, SubVendor ID, SubDevice ID,
75 * Class, Class Mask, private data (not used) }
77 static const struct pci_device_id i40e_pci_tbl
[] = {
78 {PCI_VDEVICE(INTEL
, I40E_DEV_ID_SFP_XL710
), 0},
79 {PCI_VDEVICE(INTEL
, I40E_DEV_ID_QEMU
), 0},
80 {PCI_VDEVICE(INTEL
, I40E_DEV_ID_KX_B
), 0},
81 {PCI_VDEVICE(INTEL
, I40E_DEV_ID_KX_C
), 0},
82 {PCI_VDEVICE(INTEL
, I40E_DEV_ID_QSFP_A
), 0},
83 {PCI_VDEVICE(INTEL
, I40E_DEV_ID_QSFP_B
), 0},
84 {PCI_VDEVICE(INTEL
, I40E_DEV_ID_QSFP_C
), 0},
85 {PCI_VDEVICE(INTEL
, I40E_DEV_ID_10G_BASE_T
), 0},
86 {PCI_VDEVICE(INTEL
, I40E_DEV_ID_10G_BASE_T4
), 0},
87 {PCI_VDEVICE(INTEL
, I40E_DEV_ID_20G_KR2
), 0},
88 {PCI_VDEVICE(INTEL
, I40E_DEV_ID_KX_X722
), 0},
89 {PCI_VDEVICE(INTEL
, I40E_DEV_ID_QSFP_X722
), 0},
90 {PCI_VDEVICE(INTEL
, I40E_DEV_ID_SFP_X722
), 0},
91 {PCI_VDEVICE(INTEL
, I40E_DEV_ID_1G_BASE_T_X722
), 0},
92 {PCI_VDEVICE(INTEL
, I40E_DEV_ID_10G_BASE_T_X722
), 0},
93 {PCI_VDEVICE(INTEL
, I40E_DEV_ID_20G_KR2
), 0},
94 {PCI_VDEVICE(INTEL
, I40E_DEV_ID_20G_KR2_A
), 0},
95 /* required last entry */
98 MODULE_DEVICE_TABLE(pci
, i40e_pci_tbl
);
100 #define I40E_MAX_VF_COUNT 128
101 static int debug
= -1;
102 module_param(debug
, int, 0);
103 MODULE_PARM_DESC(debug
, "Debug level (0=none,...,16=all)");
105 MODULE_AUTHOR("Intel Corporation, <e1000-devel@lists.sourceforge.net>");
106 MODULE_DESCRIPTION("Intel(R) Ethernet Connection XL710 Network Driver");
107 MODULE_LICENSE("GPL");
108 MODULE_VERSION(DRV_VERSION
);
110 static struct workqueue_struct
*i40e_wq
;
113 * i40e_allocate_dma_mem_d - OS specific memory alloc for shared code
114 * @hw: pointer to the HW structure
115 * @mem: ptr to mem struct to fill out
116 * @size: size of memory requested
117 * @alignment: what to align the allocation to
119 int i40e_allocate_dma_mem_d(struct i40e_hw
*hw
, struct i40e_dma_mem
*mem
,
120 u64 size
, u32 alignment
)
122 struct i40e_pf
*pf
= (struct i40e_pf
*)hw
->back
;
124 mem
->size
= ALIGN(size
, alignment
);
125 mem
->va
= dma_zalloc_coherent(&pf
->pdev
->dev
, mem
->size
,
126 &mem
->pa
, GFP_KERNEL
);
134 * i40e_free_dma_mem_d - OS specific memory free for shared code
135 * @hw: pointer to the HW structure
136 * @mem: ptr to mem struct to free
138 int i40e_free_dma_mem_d(struct i40e_hw
*hw
, struct i40e_dma_mem
*mem
)
140 struct i40e_pf
*pf
= (struct i40e_pf
*)hw
->back
;
142 dma_free_coherent(&pf
->pdev
->dev
, mem
->size
, mem
->va
, mem
->pa
);
151 * i40e_allocate_virt_mem_d - OS specific memory alloc for shared code
152 * @hw: pointer to the HW structure
153 * @mem: ptr to mem struct to fill out
154 * @size: size of memory requested
156 int i40e_allocate_virt_mem_d(struct i40e_hw
*hw
, struct i40e_virt_mem
*mem
,
160 mem
->va
= kzalloc(size
, GFP_KERNEL
);
169 * i40e_free_virt_mem_d - OS specific memory free for shared code
170 * @hw: pointer to the HW structure
171 * @mem: ptr to mem struct to free
173 int i40e_free_virt_mem_d(struct i40e_hw
*hw
, struct i40e_virt_mem
*mem
)
175 /* it's ok to kfree a NULL pointer */
184 * i40e_get_lump - find a lump of free generic resource
185 * @pf: board private structure
186 * @pile: the pile of resource to search
187 * @needed: the number of items needed
188 * @id: an owner id to stick on the items assigned
190 * Returns the base item index of the lump, or negative for error
192 * The search_hint trick and lack of advanced fit-finding only work
193 * because we're highly likely to have all the same size lump requests.
194 * Linear search time and any fragmentation should be minimal.
196 static int i40e_get_lump(struct i40e_pf
*pf
, struct i40e_lump_tracking
*pile
,
202 if (!pile
|| needed
== 0 || id
>= I40E_PILE_VALID_BIT
) {
203 dev_info(&pf
->pdev
->dev
,
204 "param err: pile=%p needed=%d id=0x%04x\n",
209 /* start the linear search with an imperfect hint */
210 i
= pile
->search_hint
;
211 while (i
< pile
->num_entries
) {
212 /* skip already allocated entries */
213 if (pile
->list
[i
] & I40E_PILE_VALID_BIT
) {
218 /* do we have enough in this lump? */
219 for (j
= 0; (j
< needed
) && ((i
+j
) < pile
->num_entries
); j
++) {
220 if (pile
->list
[i
+j
] & I40E_PILE_VALID_BIT
)
225 /* there was enough, so assign it to the requestor */
226 for (j
= 0; j
< needed
; j
++)
227 pile
->list
[i
+j
] = id
| I40E_PILE_VALID_BIT
;
229 pile
->search_hint
= i
+ j
;
233 /* not enough, so skip over it and continue looking */
241 * i40e_put_lump - return a lump of generic resource
242 * @pile: the pile of resource to search
243 * @index: the base item index
244 * @id: the owner id of the items assigned
246 * Returns the count of items in the lump
248 static int i40e_put_lump(struct i40e_lump_tracking
*pile
, u16 index
, u16 id
)
250 int valid_id
= (id
| I40E_PILE_VALID_BIT
);
254 if (!pile
|| index
>= pile
->num_entries
)
258 i
< pile
->num_entries
&& pile
->list
[i
] == valid_id
;
264 if (count
&& index
< pile
->search_hint
)
265 pile
->search_hint
= index
;
271 * i40e_find_vsi_from_id - searches for the vsi with the given id
272 * @pf - the pf structure to search for the vsi
273 * @id - id of the vsi it is searching for
275 struct i40e_vsi
*i40e_find_vsi_from_id(struct i40e_pf
*pf
, u16 id
)
279 for (i
= 0; i
< pf
->num_alloc_vsi
; i
++)
280 if (pf
->vsi
[i
] && (pf
->vsi
[i
]->id
== id
))
287 * i40e_service_event_schedule - Schedule the service task to wake up
288 * @pf: board private structure
290 * If not already scheduled, this puts the task into the work queue
292 static void i40e_service_event_schedule(struct i40e_pf
*pf
)
294 if (!test_bit(__I40E_DOWN
, &pf
->state
) &&
295 !test_bit(__I40E_RESET_RECOVERY_PENDING
, &pf
->state
) &&
296 !test_and_set_bit(__I40E_SERVICE_SCHED
, &pf
->state
))
297 queue_work(i40e_wq
, &pf
->service_task
);
301 * i40e_tx_timeout - Respond to a Tx Hang
302 * @netdev: network interface device structure
304 * If any port has noticed a Tx timeout, it is likely that the whole
305 * device is munged, not just the one netdev port, so go for the full
309 void i40e_tx_timeout(struct net_device
*netdev
)
311 static void i40e_tx_timeout(struct net_device
*netdev
)
314 struct i40e_netdev_priv
*np
= netdev_priv(netdev
);
315 struct i40e_vsi
*vsi
= np
->vsi
;
316 struct i40e_pf
*pf
= vsi
->back
;
317 struct i40e_ring
*tx_ring
= NULL
;
318 unsigned int i
, hung_queue
= 0;
321 pf
->tx_timeout_count
++;
323 /* find the stopped queue the same way the stack does */
324 for (i
= 0; i
< netdev
->num_tx_queues
; i
++) {
325 struct netdev_queue
*q
;
326 unsigned long trans_start
;
328 q
= netdev_get_tx_queue(netdev
, i
);
329 trans_start
= q
->trans_start
? : netdev
->trans_start
;
330 if (netif_xmit_stopped(q
) &&
332 (trans_start
+ netdev
->watchdog_timeo
))) {
338 if (i
== netdev
->num_tx_queues
) {
339 netdev_info(netdev
, "tx_timeout: no netdev hung queue found\n");
341 /* now that we have an index, find the tx_ring struct */
342 for (i
= 0; i
< vsi
->num_queue_pairs
; i
++) {
343 if (vsi
->tx_rings
[i
] && vsi
->tx_rings
[i
]->desc
) {
345 vsi
->tx_rings
[i
]->queue_index
) {
346 tx_ring
= vsi
->tx_rings
[i
];
353 if (time_after(jiffies
, (pf
->tx_timeout_last_recovery
+ HZ
*20)))
354 pf
->tx_timeout_recovery_level
= 1; /* reset after some time */
355 else if (time_before(jiffies
,
356 (pf
->tx_timeout_last_recovery
+ netdev
->watchdog_timeo
)))
357 return; /* don't do any new action before the next timeout */
360 head
= i40e_get_head(tx_ring
);
361 /* Read interrupt register */
362 if (pf
->flags
& I40E_FLAG_MSIX_ENABLED
)
364 I40E_PFINT_DYN_CTLN(tx_ring
->q_vector
->v_idx
+
365 tx_ring
->vsi
->base_vector
- 1));
367 val
= rd32(&pf
->hw
, I40E_PFINT_DYN_CTL0
);
369 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",
370 vsi
->seid
, hung_queue
, tx_ring
->next_to_clean
,
371 head
, tx_ring
->next_to_use
,
372 readl(tx_ring
->tail
), val
);
375 pf
->tx_timeout_last_recovery
= jiffies
;
376 netdev_info(netdev
, "tx_timeout recovery level %d, hung_queue %d\n",
377 pf
->tx_timeout_recovery_level
, hung_queue
);
379 switch (pf
->tx_timeout_recovery_level
) {
381 set_bit(__I40E_PF_RESET_REQUESTED
, &pf
->state
);
384 set_bit(__I40E_CORE_RESET_REQUESTED
, &pf
->state
);
387 set_bit(__I40E_GLOBAL_RESET_REQUESTED
, &pf
->state
);
390 netdev_err(netdev
, "tx_timeout recovery unsuccessful\n");
394 i40e_service_event_schedule(pf
);
395 pf
->tx_timeout_recovery_level
++;
399 * i40e_release_rx_desc - Store the new tail and head values
400 * @rx_ring: ring to bump
401 * @val: new head index
403 static inline void i40e_release_rx_desc(struct i40e_ring
*rx_ring
, u32 val
)
405 rx_ring
->next_to_use
= val
;
407 /* Force memory writes to complete before letting h/w
408 * know there are new descriptors to fetch. (Only
409 * applicable for weak-ordered memory model archs,
413 writel(val
, rx_ring
->tail
);
417 * i40e_get_vsi_stats_struct - Get System Network Statistics
418 * @vsi: the VSI we care about
420 * Returns the address of the device statistics structure.
421 * The statistics are actually updated from the service task.
423 struct rtnl_link_stats64
*i40e_get_vsi_stats_struct(struct i40e_vsi
*vsi
)
425 return &vsi
->net_stats
;
429 * i40e_get_netdev_stats_struct - Get statistics for netdev interface
430 * @netdev: network interface device structure
432 * Returns the address of the device statistics structure.
433 * The statistics are actually updated from the service task.
436 struct rtnl_link_stats64
*i40e_get_netdev_stats_struct(
437 struct net_device
*netdev
,
438 struct rtnl_link_stats64
*stats
)
440 static struct rtnl_link_stats64
*i40e_get_netdev_stats_struct(
441 struct net_device
*netdev
,
442 struct rtnl_link_stats64
*stats
)
445 struct i40e_netdev_priv
*np
= netdev_priv(netdev
);
446 struct i40e_ring
*tx_ring
, *rx_ring
;
447 struct i40e_vsi
*vsi
= np
->vsi
;
448 struct rtnl_link_stats64
*vsi_stats
= i40e_get_vsi_stats_struct(vsi
);
451 if (test_bit(__I40E_DOWN
, &vsi
->state
))
458 for (i
= 0; i
< vsi
->num_queue_pairs
; i
++) {
462 tx_ring
= ACCESS_ONCE(vsi
->tx_rings
[i
]);
467 start
= u64_stats_fetch_begin_irq(&tx_ring
->syncp
);
468 packets
= tx_ring
->stats
.packets
;
469 bytes
= tx_ring
->stats
.bytes
;
470 } while (u64_stats_fetch_retry_irq(&tx_ring
->syncp
, start
));
472 stats
->tx_packets
+= packets
;
473 stats
->tx_bytes
+= bytes
;
474 rx_ring
= &tx_ring
[1];
477 start
= u64_stats_fetch_begin_irq(&rx_ring
->syncp
);
478 packets
= rx_ring
->stats
.packets
;
479 bytes
= rx_ring
->stats
.bytes
;
480 } while (u64_stats_fetch_retry_irq(&rx_ring
->syncp
, start
));
482 stats
->rx_packets
+= packets
;
483 stats
->rx_bytes
+= bytes
;
487 /* following stats updated by i40e_watchdog_subtask() */
488 stats
->multicast
= vsi_stats
->multicast
;
489 stats
->tx_errors
= vsi_stats
->tx_errors
;
490 stats
->tx_dropped
= vsi_stats
->tx_dropped
;
491 stats
->rx_errors
= vsi_stats
->rx_errors
;
492 stats
->rx_dropped
= vsi_stats
->rx_dropped
;
493 stats
->rx_crc_errors
= vsi_stats
->rx_crc_errors
;
494 stats
->rx_length_errors
= vsi_stats
->rx_length_errors
;
500 * i40e_vsi_reset_stats - Resets all stats of the given vsi
501 * @vsi: the VSI to have its stats reset
503 void i40e_vsi_reset_stats(struct i40e_vsi
*vsi
)
505 struct rtnl_link_stats64
*ns
;
511 ns
= i40e_get_vsi_stats_struct(vsi
);
512 memset(ns
, 0, sizeof(*ns
));
513 memset(&vsi
->net_stats_offsets
, 0, sizeof(vsi
->net_stats_offsets
));
514 memset(&vsi
->eth_stats
, 0, sizeof(vsi
->eth_stats
));
515 memset(&vsi
->eth_stats_offsets
, 0, sizeof(vsi
->eth_stats_offsets
));
516 if (vsi
->rx_rings
&& vsi
->rx_rings
[0]) {
517 for (i
= 0; i
< vsi
->num_queue_pairs
; i
++) {
518 memset(&vsi
->rx_rings
[i
]->stats
, 0,
519 sizeof(vsi
->rx_rings
[i
]->stats
));
520 memset(&vsi
->rx_rings
[i
]->rx_stats
, 0,
521 sizeof(vsi
->rx_rings
[i
]->rx_stats
));
522 memset(&vsi
->tx_rings
[i
]->stats
, 0,
523 sizeof(vsi
->tx_rings
[i
]->stats
));
524 memset(&vsi
->tx_rings
[i
]->tx_stats
, 0,
525 sizeof(vsi
->tx_rings
[i
]->tx_stats
));
528 vsi
->stat_offsets_loaded
= false;
532 * i40e_pf_reset_stats - Reset all of the stats for the given PF
533 * @pf: the PF to be reset
535 void i40e_pf_reset_stats(struct i40e_pf
*pf
)
539 memset(&pf
->stats
, 0, sizeof(pf
->stats
));
540 memset(&pf
->stats_offsets
, 0, sizeof(pf
->stats_offsets
));
541 pf
->stat_offsets_loaded
= false;
543 for (i
= 0; i
< I40E_MAX_VEB
; i
++) {
545 memset(&pf
->veb
[i
]->stats
, 0,
546 sizeof(pf
->veb
[i
]->stats
));
547 memset(&pf
->veb
[i
]->stats_offsets
, 0,
548 sizeof(pf
->veb
[i
]->stats_offsets
));
549 pf
->veb
[i
]->stat_offsets_loaded
= false;
555 * i40e_stat_update48 - read and update a 48 bit stat from the chip
556 * @hw: ptr to the hardware info
557 * @hireg: the high 32 bit reg to read
558 * @loreg: the low 32 bit reg to read
559 * @offset_loaded: has the initial offset been loaded yet
560 * @offset: ptr to current offset value
561 * @stat: ptr to the stat
563 * Since the device stats are not reset at PFReset, they likely will not
564 * be zeroed when the driver starts. We'll save the first values read
565 * and use them as offsets to be subtracted from the raw values in order
566 * to report stats that count from zero. In the process, we also manage
567 * the potential roll-over.
569 static void i40e_stat_update48(struct i40e_hw
*hw
, u32 hireg
, u32 loreg
,
570 bool offset_loaded
, u64
*offset
, u64
*stat
)
574 if (hw
->device_id
== I40E_DEV_ID_QEMU
) {
575 new_data
= rd32(hw
, loreg
);
576 new_data
|= ((u64
)(rd32(hw
, hireg
) & 0xFFFF)) << 32;
578 new_data
= rd64(hw
, loreg
);
582 if (likely(new_data
>= *offset
))
583 *stat
= new_data
- *offset
;
585 *stat
= (new_data
+ BIT_ULL(48)) - *offset
;
586 *stat
&= 0xFFFFFFFFFFFFULL
;
590 * i40e_stat_update32 - read and update a 32 bit stat from the chip
591 * @hw: ptr to the hardware info
592 * @reg: the hw reg to read
593 * @offset_loaded: has the initial offset been loaded yet
594 * @offset: ptr to current offset value
595 * @stat: ptr to the stat
597 static void i40e_stat_update32(struct i40e_hw
*hw
, u32 reg
,
598 bool offset_loaded
, u64
*offset
, u64
*stat
)
602 new_data
= rd32(hw
, reg
);
605 if (likely(new_data
>= *offset
))
606 *stat
= (u32
)(new_data
- *offset
);
608 *stat
= (u32
)((new_data
+ BIT_ULL(32)) - *offset
);
612 * i40e_update_eth_stats - Update VSI-specific ethernet statistics counters.
613 * @vsi: the VSI to be updated
615 void i40e_update_eth_stats(struct i40e_vsi
*vsi
)
617 int stat_idx
= le16_to_cpu(vsi
->info
.stat_counter_idx
);
618 struct i40e_pf
*pf
= vsi
->back
;
619 struct i40e_hw
*hw
= &pf
->hw
;
620 struct i40e_eth_stats
*oes
;
621 struct i40e_eth_stats
*es
; /* device's eth stats */
623 es
= &vsi
->eth_stats
;
624 oes
= &vsi
->eth_stats_offsets
;
626 /* Gather up the stats that the hw collects */
627 i40e_stat_update32(hw
, I40E_GLV_TEPC(stat_idx
),
628 vsi
->stat_offsets_loaded
,
629 &oes
->tx_errors
, &es
->tx_errors
);
630 i40e_stat_update32(hw
, I40E_GLV_RDPC(stat_idx
),
631 vsi
->stat_offsets_loaded
,
632 &oes
->rx_discards
, &es
->rx_discards
);
633 i40e_stat_update32(hw
, I40E_GLV_RUPP(stat_idx
),
634 vsi
->stat_offsets_loaded
,
635 &oes
->rx_unknown_protocol
, &es
->rx_unknown_protocol
);
636 i40e_stat_update32(hw
, I40E_GLV_TEPC(stat_idx
),
637 vsi
->stat_offsets_loaded
,
638 &oes
->tx_errors
, &es
->tx_errors
);
640 i40e_stat_update48(hw
, I40E_GLV_GORCH(stat_idx
),
641 I40E_GLV_GORCL(stat_idx
),
642 vsi
->stat_offsets_loaded
,
643 &oes
->rx_bytes
, &es
->rx_bytes
);
644 i40e_stat_update48(hw
, I40E_GLV_UPRCH(stat_idx
),
645 I40E_GLV_UPRCL(stat_idx
),
646 vsi
->stat_offsets_loaded
,
647 &oes
->rx_unicast
, &es
->rx_unicast
);
648 i40e_stat_update48(hw
, I40E_GLV_MPRCH(stat_idx
),
649 I40E_GLV_MPRCL(stat_idx
),
650 vsi
->stat_offsets_loaded
,
651 &oes
->rx_multicast
, &es
->rx_multicast
);
652 i40e_stat_update48(hw
, I40E_GLV_BPRCH(stat_idx
),
653 I40E_GLV_BPRCL(stat_idx
),
654 vsi
->stat_offsets_loaded
,
655 &oes
->rx_broadcast
, &es
->rx_broadcast
);
657 i40e_stat_update48(hw
, I40E_GLV_GOTCH(stat_idx
),
658 I40E_GLV_GOTCL(stat_idx
),
659 vsi
->stat_offsets_loaded
,
660 &oes
->tx_bytes
, &es
->tx_bytes
);
661 i40e_stat_update48(hw
, I40E_GLV_UPTCH(stat_idx
),
662 I40E_GLV_UPTCL(stat_idx
),
663 vsi
->stat_offsets_loaded
,
664 &oes
->tx_unicast
, &es
->tx_unicast
);
665 i40e_stat_update48(hw
, I40E_GLV_MPTCH(stat_idx
),
666 I40E_GLV_MPTCL(stat_idx
),
667 vsi
->stat_offsets_loaded
,
668 &oes
->tx_multicast
, &es
->tx_multicast
);
669 i40e_stat_update48(hw
, I40E_GLV_BPTCH(stat_idx
),
670 I40E_GLV_BPTCL(stat_idx
),
671 vsi
->stat_offsets_loaded
,
672 &oes
->tx_broadcast
, &es
->tx_broadcast
);
673 vsi
->stat_offsets_loaded
= true;
677 * i40e_update_veb_stats - Update Switch component statistics
678 * @veb: the VEB being updated
680 static void i40e_update_veb_stats(struct i40e_veb
*veb
)
682 struct i40e_pf
*pf
= veb
->pf
;
683 struct i40e_hw
*hw
= &pf
->hw
;
684 struct i40e_eth_stats
*oes
;
685 struct i40e_eth_stats
*es
; /* device's eth stats */
686 struct i40e_veb_tc_stats
*veb_oes
;
687 struct i40e_veb_tc_stats
*veb_es
;
690 idx
= veb
->stats_idx
;
692 oes
= &veb
->stats_offsets
;
693 veb_es
= &veb
->tc_stats
;
694 veb_oes
= &veb
->tc_stats_offsets
;
696 /* Gather up the stats that the hw collects */
697 i40e_stat_update32(hw
, I40E_GLSW_TDPC(idx
),
698 veb
->stat_offsets_loaded
,
699 &oes
->tx_discards
, &es
->tx_discards
);
700 if (hw
->revision_id
> 0)
701 i40e_stat_update32(hw
, I40E_GLSW_RUPP(idx
),
702 veb
->stat_offsets_loaded
,
703 &oes
->rx_unknown_protocol
,
704 &es
->rx_unknown_protocol
);
705 i40e_stat_update48(hw
, I40E_GLSW_GORCH(idx
), I40E_GLSW_GORCL(idx
),
706 veb
->stat_offsets_loaded
,
707 &oes
->rx_bytes
, &es
->rx_bytes
);
708 i40e_stat_update48(hw
, I40E_GLSW_UPRCH(idx
), I40E_GLSW_UPRCL(idx
),
709 veb
->stat_offsets_loaded
,
710 &oes
->rx_unicast
, &es
->rx_unicast
);
711 i40e_stat_update48(hw
, I40E_GLSW_MPRCH(idx
), I40E_GLSW_MPRCL(idx
),
712 veb
->stat_offsets_loaded
,
713 &oes
->rx_multicast
, &es
->rx_multicast
);
714 i40e_stat_update48(hw
, I40E_GLSW_BPRCH(idx
), I40E_GLSW_BPRCL(idx
),
715 veb
->stat_offsets_loaded
,
716 &oes
->rx_broadcast
, &es
->rx_broadcast
);
718 i40e_stat_update48(hw
, I40E_GLSW_GOTCH(idx
), I40E_GLSW_GOTCL(idx
),
719 veb
->stat_offsets_loaded
,
720 &oes
->tx_bytes
, &es
->tx_bytes
);
721 i40e_stat_update48(hw
, I40E_GLSW_UPTCH(idx
), I40E_GLSW_UPTCL(idx
),
722 veb
->stat_offsets_loaded
,
723 &oes
->tx_unicast
, &es
->tx_unicast
);
724 i40e_stat_update48(hw
, I40E_GLSW_MPTCH(idx
), I40E_GLSW_MPTCL(idx
),
725 veb
->stat_offsets_loaded
,
726 &oes
->tx_multicast
, &es
->tx_multicast
);
727 i40e_stat_update48(hw
, I40E_GLSW_BPTCH(idx
), I40E_GLSW_BPTCL(idx
),
728 veb
->stat_offsets_loaded
,
729 &oes
->tx_broadcast
, &es
->tx_broadcast
);
730 for (i
= 0; i
< I40E_MAX_TRAFFIC_CLASS
; i
++) {
731 i40e_stat_update48(hw
, I40E_GLVEBTC_RPCH(i
, idx
),
732 I40E_GLVEBTC_RPCL(i
, idx
),
733 veb
->stat_offsets_loaded
,
734 &veb_oes
->tc_rx_packets
[i
],
735 &veb_es
->tc_rx_packets
[i
]);
736 i40e_stat_update48(hw
, I40E_GLVEBTC_RBCH(i
, idx
),
737 I40E_GLVEBTC_RBCL(i
, idx
),
738 veb
->stat_offsets_loaded
,
739 &veb_oes
->tc_rx_bytes
[i
],
740 &veb_es
->tc_rx_bytes
[i
]);
741 i40e_stat_update48(hw
, I40E_GLVEBTC_TPCH(i
, idx
),
742 I40E_GLVEBTC_TPCL(i
, idx
),
743 veb
->stat_offsets_loaded
,
744 &veb_oes
->tc_tx_packets
[i
],
745 &veb_es
->tc_tx_packets
[i
]);
746 i40e_stat_update48(hw
, I40E_GLVEBTC_TBCH(i
, idx
),
747 I40E_GLVEBTC_TBCL(i
, idx
),
748 veb
->stat_offsets_loaded
,
749 &veb_oes
->tc_tx_bytes
[i
],
750 &veb_es
->tc_tx_bytes
[i
]);
752 veb
->stat_offsets_loaded
= true;
757 * i40e_update_fcoe_stats - Update FCoE-specific ethernet statistics counters.
758 * @vsi: the VSI that is capable of doing FCoE
760 static void i40e_update_fcoe_stats(struct i40e_vsi
*vsi
)
762 struct i40e_pf
*pf
= vsi
->back
;
763 struct i40e_hw
*hw
= &pf
->hw
;
764 struct i40e_fcoe_stats
*ofs
;
765 struct i40e_fcoe_stats
*fs
; /* device's eth stats */
768 if (vsi
->type
!= I40E_VSI_FCOE
)
771 idx
= (pf
->pf_seid
- I40E_BASE_PF_SEID
) + I40E_FCOE_PF_STAT_OFFSET
;
772 fs
= &vsi
->fcoe_stats
;
773 ofs
= &vsi
->fcoe_stats_offsets
;
775 i40e_stat_update32(hw
, I40E_GL_FCOEPRC(idx
),
776 vsi
->fcoe_stat_offsets_loaded
,
777 &ofs
->rx_fcoe_packets
, &fs
->rx_fcoe_packets
);
778 i40e_stat_update48(hw
, I40E_GL_FCOEDWRCH(idx
), I40E_GL_FCOEDWRCL(idx
),
779 vsi
->fcoe_stat_offsets_loaded
,
780 &ofs
->rx_fcoe_dwords
, &fs
->rx_fcoe_dwords
);
781 i40e_stat_update32(hw
, I40E_GL_FCOERPDC(idx
),
782 vsi
->fcoe_stat_offsets_loaded
,
783 &ofs
->rx_fcoe_dropped
, &fs
->rx_fcoe_dropped
);
784 i40e_stat_update32(hw
, I40E_GL_FCOEPTC(idx
),
785 vsi
->fcoe_stat_offsets_loaded
,
786 &ofs
->tx_fcoe_packets
, &fs
->tx_fcoe_packets
);
787 i40e_stat_update48(hw
, I40E_GL_FCOEDWTCH(idx
), I40E_GL_FCOEDWTCL(idx
),
788 vsi
->fcoe_stat_offsets_loaded
,
789 &ofs
->tx_fcoe_dwords
, &fs
->tx_fcoe_dwords
);
790 i40e_stat_update32(hw
, I40E_GL_FCOECRC(idx
),
791 vsi
->fcoe_stat_offsets_loaded
,
792 &ofs
->fcoe_bad_fccrc
, &fs
->fcoe_bad_fccrc
);
793 i40e_stat_update32(hw
, I40E_GL_FCOELAST(idx
),
794 vsi
->fcoe_stat_offsets_loaded
,
795 &ofs
->fcoe_last_error
, &fs
->fcoe_last_error
);
796 i40e_stat_update32(hw
, I40E_GL_FCOEDDPC(idx
),
797 vsi
->fcoe_stat_offsets_loaded
,
798 &ofs
->fcoe_ddp_count
, &fs
->fcoe_ddp_count
);
800 vsi
->fcoe_stat_offsets_loaded
= true;
805 * i40e_update_vsi_stats - Update the vsi statistics counters.
806 * @vsi: the VSI to be updated
808 * There are a few instances where we store the same stat in a
809 * couple of different structs. This is partly because we have
810 * the netdev stats that need to be filled out, which is slightly
811 * different from the "eth_stats" defined by the chip and used in
812 * VF communications. We sort it out here.
814 static void i40e_update_vsi_stats(struct i40e_vsi
*vsi
)
816 struct i40e_pf
*pf
= vsi
->back
;
817 struct rtnl_link_stats64
*ons
;
818 struct rtnl_link_stats64
*ns
; /* netdev stats */
819 struct i40e_eth_stats
*oes
;
820 struct i40e_eth_stats
*es
; /* device's eth stats */
821 u32 tx_restart
, tx_busy
;
832 if (test_bit(__I40E_DOWN
, &vsi
->state
) ||
833 test_bit(__I40E_CONFIG_BUSY
, &pf
->state
))
836 ns
= i40e_get_vsi_stats_struct(vsi
);
837 ons
= &vsi
->net_stats_offsets
;
838 es
= &vsi
->eth_stats
;
839 oes
= &vsi
->eth_stats_offsets
;
841 /* Gather up the netdev and vsi stats that the driver collects
842 * on the fly during packet processing
846 tx_restart
= tx_busy
= tx_linearize
= tx_force_wb
= 0;
850 for (q
= 0; q
< vsi
->num_queue_pairs
; q
++) {
852 p
= ACCESS_ONCE(vsi
->tx_rings
[q
]);
855 start
= u64_stats_fetch_begin_irq(&p
->syncp
);
856 packets
= p
->stats
.packets
;
857 bytes
= p
->stats
.bytes
;
858 } while (u64_stats_fetch_retry_irq(&p
->syncp
, start
));
861 tx_restart
+= p
->tx_stats
.restart_queue
;
862 tx_busy
+= p
->tx_stats
.tx_busy
;
863 tx_linearize
+= p
->tx_stats
.tx_linearize
;
864 tx_force_wb
+= p
->tx_stats
.tx_force_wb
;
866 /* Rx queue is part of the same block as Tx queue */
869 start
= u64_stats_fetch_begin_irq(&p
->syncp
);
870 packets
= p
->stats
.packets
;
871 bytes
= p
->stats
.bytes
;
872 } while (u64_stats_fetch_retry_irq(&p
->syncp
, start
));
875 rx_buf
+= p
->rx_stats
.alloc_buff_failed
;
876 rx_page
+= p
->rx_stats
.alloc_page_failed
;
879 vsi
->tx_restart
= tx_restart
;
880 vsi
->tx_busy
= tx_busy
;
881 vsi
->tx_linearize
= tx_linearize
;
882 vsi
->tx_force_wb
= tx_force_wb
;
883 vsi
->rx_page_failed
= rx_page
;
884 vsi
->rx_buf_failed
= rx_buf
;
886 ns
->rx_packets
= rx_p
;
888 ns
->tx_packets
= tx_p
;
891 /* update netdev stats from eth stats */
892 i40e_update_eth_stats(vsi
);
893 ons
->tx_errors
= oes
->tx_errors
;
894 ns
->tx_errors
= es
->tx_errors
;
895 ons
->multicast
= oes
->rx_multicast
;
896 ns
->multicast
= es
->rx_multicast
;
897 ons
->rx_dropped
= oes
->rx_discards
;
898 ns
->rx_dropped
= es
->rx_discards
;
899 ons
->tx_dropped
= oes
->tx_discards
;
900 ns
->tx_dropped
= es
->tx_discards
;
902 /* pull in a couple PF stats if this is the main vsi */
903 if (vsi
== pf
->vsi
[pf
->lan_vsi
]) {
904 ns
->rx_crc_errors
= pf
->stats
.crc_errors
;
905 ns
->rx_errors
= pf
->stats
.crc_errors
+ pf
->stats
.illegal_bytes
;
906 ns
->rx_length_errors
= pf
->stats
.rx_length_errors
;
911 * i40e_update_pf_stats - Update the PF statistics counters.
912 * @pf: the PF to be updated
914 static void i40e_update_pf_stats(struct i40e_pf
*pf
)
916 struct i40e_hw_port_stats
*osd
= &pf
->stats_offsets
;
917 struct i40e_hw_port_stats
*nsd
= &pf
->stats
;
918 struct i40e_hw
*hw
= &pf
->hw
;
922 i40e_stat_update48(hw
, I40E_GLPRT_GORCH(hw
->port
),
923 I40E_GLPRT_GORCL(hw
->port
),
924 pf
->stat_offsets_loaded
,
925 &osd
->eth
.rx_bytes
, &nsd
->eth
.rx_bytes
);
926 i40e_stat_update48(hw
, I40E_GLPRT_GOTCH(hw
->port
),
927 I40E_GLPRT_GOTCL(hw
->port
),
928 pf
->stat_offsets_loaded
,
929 &osd
->eth
.tx_bytes
, &nsd
->eth
.tx_bytes
);
930 i40e_stat_update32(hw
, I40E_GLPRT_RDPC(hw
->port
),
931 pf
->stat_offsets_loaded
,
932 &osd
->eth
.rx_discards
,
933 &nsd
->eth
.rx_discards
);
934 i40e_stat_update48(hw
, I40E_GLPRT_UPRCH(hw
->port
),
935 I40E_GLPRT_UPRCL(hw
->port
),
936 pf
->stat_offsets_loaded
,
937 &osd
->eth
.rx_unicast
,
938 &nsd
->eth
.rx_unicast
);
939 i40e_stat_update48(hw
, I40E_GLPRT_MPRCH(hw
->port
),
940 I40E_GLPRT_MPRCL(hw
->port
),
941 pf
->stat_offsets_loaded
,
942 &osd
->eth
.rx_multicast
,
943 &nsd
->eth
.rx_multicast
);
944 i40e_stat_update48(hw
, I40E_GLPRT_BPRCH(hw
->port
),
945 I40E_GLPRT_BPRCL(hw
->port
),
946 pf
->stat_offsets_loaded
,
947 &osd
->eth
.rx_broadcast
,
948 &nsd
->eth
.rx_broadcast
);
949 i40e_stat_update48(hw
, I40E_GLPRT_UPTCH(hw
->port
),
950 I40E_GLPRT_UPTCL(hw
->port
),
951 pf
->stat_offsets_loaded
,
952 &osd
->eth
.tx_unicast
,
953 &nsd
->eth
.tx_unicast
);
954 i40e_stat_update48(hw
, I40E_GLPRT_MPTCH(hw
->port
),
955 I40E_GLPRT_MPTCL(hw
->port
),
956 pf
->stat_offsets_loaded
,
957 &osd
->eth
.tx_multicast
,
958 &nsd
->eth
.tx_multicast
);
959 i40e_stat_update48(hw
, I40E_GLPRT_BPTCH(hw
->port
),
960 I40E_GLPRT_BPTCL(hw
->port
),
961 pf
->stat_offsets_loaded
,
962 &osd
->eth
.tx_broadcast
,
963 &nsd
->eth
.tx_broadcast
);
965 i40e_stat_update32(hw
, I40E_GLPRT_TDOLD(hw
->port
),
966 pf
->stat_offsets_loaded
,
967 &osd
->tx_dropped_link_down
,
968 &nsd
->tx_dropped_link_down
);
970 i40e_stat_update32(hw
, I40E_GLPRT_CRCERRS(hw
->port
),
971 pf
->stat_offsets_loaded
,
972 &osd
->crc_errors
, &nsd
->crc_errors
);
974 i40e_stat_update32(hw
, I40E_GLPRT_ILLERRC(hw
->port
),
975 pf
->stat_offsets_loaded
,
976 &osd
->illegal_bytes
, &nsd
->illegal_bytes
);
978 i40e_stat_update32(hw
, I40E_GLPRT_MLFC(hw
->port
),
979 pf
->stat_offsets_loaded
,
980 &osd
->mac_local_faults
,
981 &nsd
->mac_local_faults
);
982 i40e_stat_update32(hw
, I40E_GLPRT_MRFC(hw
->port
),
983 pf
->stat_offsets_loaded
,
984 &osd
->mac_remote_faults
,
985 &nsd
->mac_remote_faults
);
987 i40e_stat_update32(hw
, I40E_GLPRT_RLEC(hw
->port
),
988 pf
->stat_offsets_loaded
,
989 &osd
->rx_length_errors
,
990 &nsd
->rx_length_errors
);
992 i40e_stat_update32(hw
, I40E_GLPRT_LXONRXC(hw
->port
),
993 pf
->stat_offsets_loaded
,
994 &osd
->link_xon_rx
, &nsd
->link_xon_rx
);
995 i40e_stat_update32(hw
, I40E_GLPRT_LXONTXC(hw
->port
),
996 pf
->stat_offsets_loaded
,
997 &osd
->link_xon_tx
, &nsd
->link_xon_tx
);
998 i40e_stat_update32(hw
, I40E_GLPRT_LXOFFRXC(hw
->port
),
999 pf
->stat_offsets_loaded
,
1000 &osd
->link_xoff_rx
, &nsd
->link_xoff_rx
);
1001 i40e_stat_update32(hw
, I40E_GLPRT_LXOFFTXC(hw
->port
),
1002 pf
->stat_offsets_loaded
,
1003 &osd
->link_xoff_tx
, &nsd
->link_xoff_tx
);
1005 for (i
= 0; i
< 8; i
++) {
1006 i40e_stat_update32(hw
, I40E_GLPRT_PXOFFRXC(hw
->port
, i
),
1007 pf
->stat_offsets_loaded
,
1008 &osd
->priority_xoff_rx
[i
],
1009 &nsd
->priority_xoff_rx
[i
]);
1010 i40e_stat_update32(hw
, I40E_GLPRT_PXONRXC(hw
->port
, i
),
1011 pf
->stat_offsets_loaded
,
1012 &osd
->priority_xon_rx
[i
],
1013 &nsd
->priority_xon_rx
[i
]);
1014 i40e_stat_update32(hw
, I40E_GLPRT_PXONTXC(hw
->port
, i
),
1015 pf
->stat_offsets_loaded
,
1016 &osd
->priority_xon_tx
[i
],
1017 &nsd
->priority_xon_tx
[i
]);
1018 i40e_stat_update32(hw
, I40E_GLPRT_PXOFFTXC(hw
->port
, i
),
1019 pf
->stat_offsets_loaded
,
1020 &osd
->priority_xoff_tx
[i
],
1021 &nsd
->priority_xoff_tx
[i
]);
1022 i40e_stat_update32(hw
,
1023 I40E_GLPRT_RXON2OFFCNT(hw
->port
, i
),
1024 pf
->stat_offsets_loaded
,
1025 &osd
->priority_xon_2_xoff
[i
],
1026 &nsd
->priority_xon_2_xoff
[i
]);
1029 i40e_stat_update48(hw
, I40E_GLPRT_PRC64H(hw
->port
),
1030 I40E_GLPRT_PRC64L(hw
->port
),
1031 pf
->stat_offsets_loaded
,
1032 &osd
->rx_size_64
, &nsd
->rx_size_64
);
1033 i40e_stat_update48(hw
, I40E_GLPRT_PRC127H(hw
->port
),
1034 I40E_GLPRT_PRC127L(hw
->port
),
1035 pf
->stat_offsets_loaded
,
1036 &osd
->rx_size_127
, &nsd
->rx_size_127
);
1037 i40e_stat_update48(hw
, I40E_GLPRT_PRC255H(hw
->port
),
1038 I40E_GLPRT_PRC255L(hw
->port
),
1039 pf
->stat_offsets_loaded
,
1040 &osd
->rx_size_255
, &nsd
->rx_size_255
);
1041 i40e_stat_update48(hw
, I40E_GLPRT_PRC511H(hw
->port
),
1042 I40E_GLPRT_PRC511L(hw
->port
),
1043 pf
->stat_offsets_loaded
,
1044 &osd
->rx_size_511
, &nsd
->rx_size_511
);
1045 i40e_stat_update48(hw
, I40E_GLPRT_PRC1023H(hw
->port
),
1046 I40E_GLPRT_PRC1023L(hw
->port
),
1047 pf
->stat_offsets_loaded
,
1048 &osd
->rx_size_1023
, &nsd
->rx_size_1023
);
1049 i40e_stat_update48(hw
, I40E_GLPRT_PRC1522H(hw
->port
),
1050 I40E_GLPRT_PRC1522L(hw
->port
),
1051 pf
->stat_offsets_loaded
,
1052 &osd
->rx_size_1522
, &nsd
->rx_size_1522
);
1053 i40e_stat_update48(hw
, I40E_GLPRT_PRC9522H(hw
->port
),
1054 I40E_GLPRT_PRC9522L(hw
->port
),
1055 pf
->stat_offsets_loaded
,
1056 &osd
->rx_size_big
, &nsd
->rx_size_big
);
1058 i40e_stat_update48(hw
, I40E_GLPRT_PTC64H(hw
->port
),
1059 I40E_GLPRT_PTC64L(hw
->port
),
1060 pf
->stat_offsets_loaded
,
1061 &osd
->tx_size_64
, &nsd
->tx_size_64
);
1062 i40e_stat_update48(hw
, I40E_GLPRT_PTC127H(hw
->port
),
1063 I40E_GLPRT_PTC127L(hw
->port
),
1064 pf
->stat_offsets_loaded
,
1065 &osd
->tx_size_127
, &nsd
->tx_size_127
);
1066 i40e_stat_update48(hw
, I40E_GLPRT_PTC255H(hw
->port
),
1067 I40E_GLPRT_PTC255L(hw
->port
),
1068 pf
->stat_offsets_loaded
,
1069 &osd
->tx_size_255
, &nsd
->tx_size_255
);
1070 i40e_stat_update48(hw
, I40E_GLPRT_PTC511H(hw
->port
),
1071 I40E_GLPRT_PTC511L(hw
->port
),
1072 pf
->stat_offsets_loaded
,
1073 &osd
->tx_size_511
, &nsd
->tx_size_511
);
1074 i40e_stat_update48(hw
, I40E_GLPRT_PTC1023H(hw
->port
),
1075 I40E_GLPRT_PTC1023L(hw
->port
),
1076 pf
->stat_offsets_loaded
,
1077 &osd
->tx_size_1023
, &nsd
->tx_size_1023
);
1078 i40e_stat_update48(hw
, I40E_GLPRT_PTC1522H(hw
->port
),
1079 I40E_GLPRT_PTC1522L(hw
->port
),
1080 pf
->stat_offsets_loaded
,
1081 &osd
->tx_size_1522
, &nsd
->tx_size_1522
);
1082 i40e_stat_update48(hw
, I40E_GLPRT_PTC9522H(hw
->port
),
1083 I40E_GLPRT_PTC9522L(hw
->port
),
1084 pf
->stat_offsets_loaded
,
1085 &osd
->tx_size_big
, &nsd
->tx_size_big
);
1087 i40e_stat_update32(hw
, I40E_GLPRT_RUC(hw
->port
),
1088 pf
->stat_offsets_loaded
,
1089 &osd
->rx_undersize
, &nsd
->rx_undersize
);
1090 i40e_stat_update32(hw
, I40E_GLPRT_RFC(hw
->port
),
1091 pf
->stat_offsets_loaded
,
1092 &osd
->rx_fragments
, &nsd
->rx_fragments
);
1093 i40e_stat_update32(hw
, I40E_GLPRT_ROC(hw
->port
),
1094 pf
->stat_offsets_loaded
,
1095 &osd
->rx_oversize
, &nsd
->rx_oversize
);
1096 i40e_stat_update32(hw
, I40E_GLPRT_RJC(hw
->port
),
1097 pf
->stat_offsets_loaded
,
1098 &osd
->rx_jabber
, &nsd
->rx_jabber
);
1101 i40e_stat_update32(hw
,
1102 I40E_GLQF_PCNT(I40E_FD_ATR_STAT_IDX(pf
->hw
.pf_id
)),
1103 pf
->stat_offsets_loaded
,
1104 &osd
->fd_atr_match
, &nsd
->fd_atr_match
);
1105 i40e_stat_update32(hw
,
1106 I40E_GLQF_PCNT(I40E_FD_SB_STAT_IDX(pf
->hw
.pf_id
)),
1107 pf
->stat_offsets_loaded
,
1108 &osd
->fd_sb_match
, &nsd
->fd_sb_match
);
1109 i40e_stat_update32(hw
,
1110 I40E_GLQF_PCNT(I40E_FD_ATR_TUNNEL_STAT_IDX(pf
->hw
.pf_id
)),
1111 pf
->stat_offsets_loaded
,
1112 &osd
->fd_atr_tunnel_match
, &nsd
->fd_atr_tunnel_match
);
1114 val
= rd32(hw
, I40E_PRTPM_EEE_STAT
);
1115 nsd
->tx_lpi_status
=
1116 (val
& I40E_PRTPM_EEE_STAT_TX_LPI_STATUS_MASK
) >>
1117 I40E_PRTPM_EEE_STAT_TX_LPI_STATUS_SHIFT
;
1118 nsd
->rx_lpi_status
=
1119 (val
& I40E_PRTPM_EEE_STAT_RX_LPI_STATUS_MASK
) >>
1120 I40E_PRTPM_EEE_STAT_RX_LPI_STATUS_SHIFT
;
1121 i40e_stat_update32(hw
, I40E_PRTPM_TLPIC
,
1122 pf
->stat_offsets_loaded
,
1123 &osd
->tx_lpi_count
, &nsd
->tx_lpi_count
);
1124 i40e_stat_update32(hw
, I40E_PRTPM_RLPIC
,
1125 pf
->stat_offsets_loaded
,
1126 &osd
->rx_lpi_count
, &nsd
->rx_lpi_count
);
1128 if (pf
->flags
& I40E_FLAG_FD_SB_ENABLED
&&
1129 !(pf
->auto_disable_flags
& I40E_FLAG_FD_SB_ENABLED
))
1130 nsd
->fd_sb_status
= true;
1132 nsd
->fd_sb_status
= false;
1134 if (pf
->flags
& I40E_FLAG_FD_ATR_ENABLED
&&
1135 !(pf
->auto_disable_flags
& I40E_FLAG_FD_ATR_ENABLED
))
1136 nsd
->fd_atr_status
= true;
1138 nsd
->fd_atr_status
= false;
1140 pf
->stat_offsets_loaded
= true;
1144 * i40e_update_stats - Update the various statistics counters.
1145 * @vsi: the VSI to be updated
1147 * Update the various stats for this VSI and its related entities.
1149 void i40e_update_stats(struct i40e_vsi
*vsi
)
1151 struct i40e_pf
*pf
= vsi
->back
;
1153 if (vsi
== pf
->vsi
[pf
->lan_vsi
])
1154 i40e_update_pf_stats(pf
);
1156 i40e_update_vsi_stats(vsi
);
1158 i40e_update_fcoe_stats(vsi
);
1163 * i40e_find_filter - Search VSI filter list for specific mac/vlan filter
1164 * @vsi: the VSI to be searched
1165 * @macaddr: the MAC address
1167 * @is_vf: make sure its a VF filter, else doesn't matter
1168 * @is_netdev: make sure its a netdev filter, else doesn't matter
1170 * Returns ptr to the filter object or NULL
1172 static struct i40e_mac_filter
*i40e_find_filter(struct i40e_vsi
*vsi
,
1173 u8
*macaddr
, s16 vlan
,
1174 bool is_vf
, bool is_netdev
)
1176 struct i40e_mac_filter
*f
;
1178 if (!vsi
|| !macaddr
)
1181 list_for_each_entry(f
, &vsi
->mac_filter_list
, list
) {
1182 if ((ether_addr_equal(macaddr
, f
->macaddr
)) &&
1183 (vlan
== f
->vlan
) &&
1184 (!is_vf
|| f
->is_vf
) &&
1185 (!is_netdev
|| f
->is_netdev
))
1192 * i40e_find_mac - Find a mac addr in the macvlan filters list
1193 * @vsi: the VSI to be searched
1194 * @macaddr: the MAC address we are searching for
1195 * @is_vf: make sure its a VF filter, else doesn't matter
1196 * @is_netdev: make sure its a netdev filter, else doesn't matter
1198 * Returns the first filter with the provided MAC address or NULL if
1199 * MAC address was not found
1201 struct i40e_mac_filter
*i40e_find_mac(struct i40e_vsi
*vsi
, u8
*macaddr
,
1202 bool is_vf
, bool is_netdev
)
1204 struct i40e_mac_filter
*f
;
1206 if (!vsi
|| !macaddr
)
1209 list_for_each_entry(f
, &vsi
->mac_filter_list
, list
) {
1210 if ((ether_addr_equal(macaddr
, f
->macaddr
)) &&
1211 (!is_vf
|| f
->is_vf
) &&
1212 (!is_netdev
|| f
->is_netdev
))
1219 * i40e_is_vsi_in_vlan - Check if VSI is in vlan mode
1220 * @vsi: the VSI to be searched
1222 * Returns true if VSI is in vlan mode or false otherwise
1224 bool i40e_is_vsi_in_vlan(struct i40e_vsi
*vsi
)
1226 struct i40e_mac_filter
*f
;
1228 /* Only -1 for all the filters denotes not in vlan mode
1229 * so we have to go through all the list in order to make sure
1231 list_for_each_entry(f
, &vsi
->mac_filter_list
, list
) {
1232 if (f
->vlan
>= 0 || vsi
->info
.pvid
)
1240 * i40e_put_mac_in_vlan - Make macvlan filters from macaddrs and vlans
1241 * @vsi: the VSI to be searched
1242 * @macaddr: the mac address to be filtered
1243 * @is_vf: true if it is a VF
1244 * @is_netdev: true if it is a netdev
1246 * Goes through all the macvlan filters and adds a
1247 * macvlan filter for each unique vlan that already exists
1249 * Returns first filter found on success, else NULL
1251 struct i40e_mac_filter
*i40e_put_mac_in_vlan(struct i40e_vsi
*vsi
, u8
*macaddr
,
1252 bool is_vf
, bool is_netdev
)
1254 struct i40e_mac_filter
*f
;
1256 list_for_each_entry(f
, &vsi
->mac_filter_list
, list
) {
1258 f
->vlan
= le16_to_cpu(vsi
->info
.pvid
);
1259 if (!i40e_find_filter(vsi
, macaddr
, f
->vlan
,
1260 is_vf
, is_netdev
)) {
1261 if (!i40e_add_filter(vsi
, macaddr
, f
->vlan
,
1267 return list_first_entry_or_null(&vsi
->mac_filter_list
,
1268 struct i40e_mac_filter
, list
);
1272 * i40e_del_mac_all_vlan - Remove a MAC filter from all VLANS
1273 * @vsi: the VSI to be searched
1274 * @macaddr: the mac address to be removed
1275 * @is_vf: true if it is a VF
1276 * @is_netdev: true if it is a netdev
1278 * Removes a given MAC address from a VSI, regardless of VLAN
1280 * Returns 0 for success, or error
1282 int i40e_del_mac_all_vlan(struct i40e_vsi
*vsi
, u8
*macaddr
,
1283 bool is_vf
, bool is_netdev
)
1285 struct i40e_mac_filter
*f
= NULL
;
1288 WARN(!spin_is_locked(&vsi
->mac_filter_list_lock
),
1289 "Missing mac_filter_list_lock\n");
1290 list_for_each_entry(f
, &vsi
->mac_filter_list
, list
) {
1291 if ((ether_addr_equal(macaddr
, f
->macaddr
)) &&
1292 (is_vf
== f
->is_vf
) &&
1293 (is_netdev
== f
->is_netdev
)) {
1300 vsi
->flags
|= I40E_VSI_FLAG_FILTER_CHANGED
;
1301 vsi
->back
->flags
|= I40E_FLAG_FILTER_SYNC
;
1308 * i40e_rm_default_mac_filter - Remove the default MAC filter set by NVM
1309 * @vsi: the PF Main VSI - inappropriate for any other VSI
1310 * @macaddr: the MAC address
1312 * Some older firmware configurations set up a default promiscuous VLAN
1313 * filter that needs to be removed.
1315 static int i40e_rm_default_mac_filter(struct i40e_vsi
*vsi
, u8
*macaddr
)
1317 struct i40e_aqc_remove_macvlan_element_data element
;
1318 struct i40e_pf
*pf
= vsi
->back
;
1321 /* Only appropriate for the PF main VSI */
1322 if (vsi
->type
!= I40E_VSI_MAIN
)
1325 memset(&element
, 0, sizeof(element
));
1326 ether_addr_copy(element
.mac_addr
, macaddr
);
1327 element
.vlan_tag
= 0;
1328 element
.flags
= I40E_AQC_MACVLAN_DEL_PERFECT_MATCH
|
1329 I40E_AQC_MACVLAN_DEL_IGNORE_VLAN
;
1330 ret
= i40e_aq_remove_macvlan(&pf
->hw
, vsi
->seid
, &element
, 1, NULL
);
1338 * i40e_add_filter - Add a mac/vlan filter to the VSI
1339 * @vsi: the VSI to be searched
1340 * @macaddr: the MAC address
1342 * @is_vf: make sure its a VF filter, else doesn't matter
1343 * @is_netdev: make sure its a netdev filter, else doesn't matter
1345 * Returns ptr to the filter object or NULL when no memory available.
1347 * NOTE: This function is expected to be called with mac_filter_list_lock
1350 struct i40e_mac_filter
*i40e_add_filter(struct i40e_vsi
*vsi
,
1351 u8
*macaddr
, s16 vlan
,
1352 bool is_vf
, bool is_netdev
)
1354 struct i40e_mac_filter
*f
;
1356 if (!vsi
|| !macaddr
)
1359 f
= i40e_find_filter(vsi
, macaddr
, vlan
, is_vf
, is_netdev
);
1361 f
= kzalloc(sizeof(*f
), GFP_ATOMIC
);
1363 goto add_filter_out
;
1365 ether_addr_copy(f
->macaddr
, macaddr
);
1369 INIT_LIST_HEAD(&f
->list
);
1370 list_add_tail(&f
->list
, &vsi
->mac_filter_list
);
1373 /* increment counter and add a new flag if needed */
1379 } else if (is_netdev
) {
1380 if (!f
->is_netdev
) {
1381 f
->is_netdev
= true;
1388 /* changed tells sync_filters_subtask to
1389 * push the filter down to the firmware
1392 vsi
->flags
|= I40E_VSI_FLAG_FILTER_CHANGED
;
1393 vsi
->back
->flags
|= I40E_FLAG_FILTER_SYNC
;
1401 * i40e_del_filter - Remove a mac/vlan filter from the VSI
1402 * @vsi: the VSI to be searched
1403 * @macaddr: the MAC address
1405 * @is_vf: make sure it's a VF filter, else doesn't matter
1406 * @is_netdev: make sure it's a netdev filter, else doesn't matter
1408 * NOTE: This function is expected to be called with mac_filter_list_lock
1411 void i40e_del_filter(struct i40e_vsi
*vsi
,
1412 u8
*macaddr
, s16 vlan
,
1413 bool is_vf
, bool is_netdev
)
1415 struct i40e_mac_filter
*f
;
1417 if (!vsi
|| !macaddr
)
1420 f
= i40e_find_filter(vsi
, macaddr
, vlan
, is_vf
, is_netdev
);
1421 if (!f
|| f
->counter
== 0)
1429 } else if (is_netdev
) {
1431 f
->is_netdev
= false;
1435 /* make sure we don't remove a filter in use by VF or netdev */
1438 min_f
+= (f
->is_vf
? 1 : 0);
1439 min_f
+= (f
->is_netdev
? 1 : 0);
1441 if (f
->counter
> min_f
)
1445 /* counter == 0 tells sync_filters_subtask to
1446 * remove the filter from the firmware's list
1448 if (f
->counter
== 0) {
1450 vsi
->flags
|= I40E_VSI_FLAG_FILTER_CHANGED
;
1451 vsi
->back
->flags
|= I40E_FLAG_FILTER_SYNC
;
1456 * i40e_set_mac - NDO callback to set mac address
1457 * @netdev: network interface device structure
1458 * @p: pointer to an address structure
1460 * Returns 0 on success, negative on failure
1463 int i40e_set_mac(struct net_device
*netdev
, void *p
)
1465 static int i40e_set_mac(struct net_device
*netdev
, void *p
)
1468 struct i40e_netdev_priv
*np
= netdev_priv(netdev
);
1469 struct i40e_vsi
*vsi
= np
->vsi
;
1470 struct i40e_pf
*pf
= vsi
->back
;
1471 struct i40e_hw
*hw
= &pf
->hw
;
1472 struct sockaddr
*addr
= p
;
1473 struct i40e_mac_filter
*f
;
1475 if (!is_valid_ether_addr(addr
->sa_data
))
1476 return -EADDRNOTAVAIL
;
1478 if (ether_addr_equal(netdev
->dev_addr
, addr
->sa_data
)) {
1479 netdev_info(netdev
, "already using mac address %pM\n",
1484 if (test_bit(__I40E_DOWN
, &vsi
->back
->state
) ||
1485 test_bit(__I40E_RESET_RECOVERY_PENDING
, &vsi
->back
->state
))
1486 return -EADDRNOTAVAIL
;
1488 if (ether_addr_equal(hw
->mac
.addr
, addr
->sa_data
))
1489 netdev_info(netdev
, "returning to hw mac address %pM\n",
1492 netdev_info(netdev
, "set new mac address %pM\n", addr
->sa_data
);
1494 if (vsi
->type
== I40E_VSI_MAIN
) {
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 spin_lock_bh(&vsi
->mac_filter_list_lock
);
1517 i40e_del_filter(vsi
, netdev
->dev_addr
, I40E_VLAN_ANY
,
1519 spin_unlock_bh(&vsi
->mac_filter_list_lock
);
1522 if (ether_addr_equal(addr
->sa_data
, hw
->mac
.addr
)) {
1523 struct i40e_aqc_add_macvlan_element_data element
;
1525 memset(&element
, 0, sizeof(element
));
1526 ether_addr_copy(element
.mac_addr
, hw
->mac
.addr
);
1527 element
.flags
= cpu_to_le16(I40E_AQC_MACVLAN_ADD_PERFECT_MATCH
);
1528 i40e_aq_add_macvlan(&pf
->hw
, vsi
->seid
, &element
, 1, NULL
);
1530 spin_lock_bh(&vsi
->mac_filter_list_lock
);
1531 f
= i40e_add_filter(vsi
, addr
->sa_data
, I40E_VLAN_ANY
,
1535 spin_unlock_bh(&vsi
->mac_filter_list_lock
);
1538 ether_addr_copy(netdev
->dev_addr
, addr
->sa_data
);
1540 /* schedule our worker thread which will take care of
1541 * applying the new filter changes
1543 i40e_service_event_schedule(vsi
->back
);
1548 * i40e_vsi_setup_queue_map - Setup a VSI queue map based on enabled_tc
1549 * @vsi: the VSI being setup
1550 * @ctxt: VSI context structure
1551 * @enabled_tc: Enabled TCs bitmap
1552 * @is_add: True if called before Add VSI
1554 * Setup VSI queue mapping for enabled traffic classes.
1557 void i40e_vsi_setup_queue_map(struct i40e_vsi
*vsi
,
1558 struct i40e_vsi_context
*ctxt
,
1562 static void i40e_vsi_setup_queue_map(struct i40e_vsi
*vsi
,
1563 struct i40e_vsi_context
*ctxt
,
1568 struct i40e_pf
*pf
= vsi
->back
;
1578 sections
= I40E_AQ_VSI_PROP_QUEUE_MAP_VALID
;
1581 if (enabled_tc
&& (vsi
->back
->flags
& I40E_FLAG_DCB_ENABLED
)) {
1582 /* Find numtc from enabled TC bitmap */
1583 for (i
= 0; i
< I40E_MAX_TRAFFIC_CLASS
; i
++) {
1584 if (enabled_tc
& BIT(i
)) /* TC is enabled */
1588 dev_warn(&pf
->pdev
->dev
, "DCB is enabled but no TC enabled, forcing TC0\n");
1592 /* At least TC0 is enabled in case of non-DCB case */
1596 vsi
->tc_config
.numtc
= numtc
;
1597 vsi
->tc_config
.enabled_tc
= enabled_tc
? enabled_tc
: 1;
1598 /* Number of queues per enabled TC */
1599 /* In MFP case we can have a much lower count of MSIx
1600 * vectors available and so we need to lower the used
1603 if (pf
->flags
& I40E_FLAG_MSIX_ENABLED
)
1604 qcount
= min_t(int, vsi
->alloc_queue_pairs
, pf
->num_lan_msix
);
1606 qcount
= vsi
->alloc_queue_pairs
;
1607 num_tc_qps
= qcount
/ numtc
;
1608 num_tc_qps
= min_t(int, num_tc_qps
, i40e_pf_get_max_q_per_tc(pf
));
1610 /* Setup queue offset/count for all TCs for given VSI */
1611 for (i
= 0; i
< I40E_MAX_TRAFFIC_CLASS
; i
++) {
1612 /* See if the given TC is enabled for the given VSI */
1613 if (vsi
->tc_config
.enabled_tc
& BIT(i
)) {
1617 switch (vsi
->type
) {
1619 qcount
= min_t(int, pf
->alloc_rss_size
,
1624 qcount
= num_tc_qps
;
1628 case I40E_VSI_SRIOV
:
1629 case I40E_VSI_VMDQ2
:
1631 qcount
= num_tc_qps
;
1635 vsi
->tc_config
.tc_info
[i
].qoffset
= offset
;
1636 vsi
->tc_config
.tc_info
[i
].qcount
= qcount
;
1638 /* find the next higher power-of-2 of num queue pairs */
1641 while (num_qps
&& (BIT_ULL(pow
) < qcount
)) {
1646 vsi
->tc_config
.tc_info
[i
].netdev_tc
= netdev_tc
++;
1648 (offset
<< I40E_AQ_VSI_TC_QUE_OFFSET_SHIFT
) |
1649 (pow
<< I40E_AQ_VSI_TC_QUE_NUMBER_SHIFT
);
1653 /* TC is not enabled so set the offset to
1654 * default queue and allocate one queue
1657 vsi
->tc_config
.tc_info
[i
].qoffset
= 0;
1658 vsi
->tc_config
.tc_info
[i
].qcount
= 1;
1659 vsi
->tc_config
.tc_info
[i
].netdev_tc
= 0;
1663 ctxt
->info
.tc_mapping
[i
] = cpu_to_le16(qmap
);
1666 /* Set actual Tx/Rx queue pairs */
1667 vsi
->num_queue_pairs
= offset
;
1668 if ((vsi
->type
== I40E_VSI_MAIN
) && (numtc
== 1)) {
1669 if (vsi
->req_queue_pairs
> 0)
1670 vsi
->num_queue_pairs
= vsi
->req_queue_pairs
;
1671 else if (pf
->flags
& I40E_FLAG_MSIX_ENABLED
)
1672 vsi
->num_queue_pairs
= pf
->num_lan_msix
;
1675 /* Scheduler section valid can only be set for ADD VSI */
1677 sections
|= I40E_AQ_VSI_PROP_SCHED_VALID
;
1679 ctxt
->info
.up_enable_bits
= enabled_tc
;
1681 if (vsi
->type
== I40E_VSI_SRIOV
) {
1682 ctxt
->info
.mapping_flags
|=
1683 cpu_to_le16(I40E_AQ_VSI_QUE_MAP_NONCONTIG
);
1684 for (i
= 0; i
< vsi
->num_queue_pairs
; i
++)
1685 ctxt
->info
.queue_mapping
[i
] =
1686 cpu_to_le16(vsi
->base_queue
+ i
);
1688 ctxt
->info
.mapping_flags
|=
1689 cpu_to_le16(I40E_AQ_VSI_QUE_MAP_CONTIG
);
1690 ctxt
->info
.queue_mapping
[0] = cpu_to_le16(vsi
->base_queue
);
1692 ctxt
->info
.valid_sections
|= cpu_to_le16(sections
);
1696 * i40e_set_rx_mode - NDO callback to set the netdev filters
1697 * @netdev: network interface device structure
1700 void i40e_set_rx_mode(struct net_device
*netdev
)
1702 static void i40e_set_rx_mode(struct net_device
*netdev
)
1705 struct i40e_netdev_priv
*np
= netdev_priv(netdev
);
1706 struct i40e_mac_filter
*f
, *ftmp
;
1707 struct i40e_vsi
*vsi
= np
->vsi
;
1708 struct netdev_hw_addr
*uca
;
1709 struct netdev_hw_addr
*mca
;
1710 struct netdev_hw_addr
*ha
;
1712 spin_lock_bh(&vsi
->mac_filter_list_lock
);
1714 /* add addr if not already in the filter list */
1715 netdev_for_each_uc_addr(uca
, netdev
) {
1716 if (!i40e_find_mac(vsi
, uca
->addr
, false, true)) {
1717 if (i40e_is_vsi_in_vlan(vsi
))
1718 i40e_put_mac_in_vlan(vsi
, uca
->addr
,
1721 i40e_add_filter(vsi
, uca
->addr
, I40E_VLAN_ANY
,
1726 netdev_for_each_mc_addr(mca
, netdev
) {
1727 if (!i40e_find_mac(vsi
, mca
->addr
, false, true)) {
1728 if (i40e_is_vsi_in_vlan(vsi
))
1729 i40e_put_mac_in_vlan(vsi
, mca
->addr
,
1732 i40e_add_filter(vsi
, mca
->addr
, I40E_VLAN_ANY
,
1737 /* remove filter if not in netdev list */
1738 list_for_each_entry_safe(f
, ftmp
, &vsi
->mac_filter_list
, list
) {
1743 netdev_for_each_mc_addr(mca
, netdev
)
1744 if (ether_addr_equal(mca
->addr
, f
->macaddr
))
1745 goto bottom_of_search_loop
;
1747 netdev_for_each_uc_addr(uca
, netdev
)
1748 if (ether_addr_equal(uca
->addr
, f
->macaddr
))
1749 goto bottom_of_search_loop
;
1751 for_each_dev_addr(netdev
, ha
)
1752 if (ether_addr_equal(ha
->addr
, f
->macaddr
))
1753 goto bottom_of_search_loop
;
1755 /* f->macaddr wasn't found in uc, mc, or ha list so delete it */
1756 i40e_del_filter(vsi
, f
->macaddr
, I40E_VLAN_ANY
, false, true);
1758 bottom_of_search_loop
:
1761 spin_unlock_bh(&vsi
->mac_filter_list_lock
);
1763 /* check for other flag changes */
1764 if (vsi
->current_netdev_flags
!= vsi
->netdev
->flags
) {
1765 vsi
->flags
|= I40E_VSI_FLAG_FILTER_CHANGED
;
1766 vsi
->back
->flags
|= I40E_FLAG_FILTER_SYNC
;
1769 /* schedule our worker thread which will take care of
1770 * applying the new filter changes
1772 i40e_service_event_schedule(vsi
->back
);
1776 * i40e_mac_filter_entry_clone - Clones a MAC filter entry
1777 * @src: source MAC filter entry to be clones
1779 * Returns the pointer to newly cloned MAC filter entry or NULL
1782 static struct i40e_mac_filter
*i40e_mac_filter_entry_clone(
1783 struct i40e_mac_filter
*src
)
1785 struct i40e_mac_filter
*f
;
1787 f
= kzalloc(sizeof(*f
), GFP_ATOMIC
);
1792 INIT_LIST_HEAD(&f
->list
);
1798 * i40e_undo_del_filter_entries - Undo the changes made to MAC filter entries
1799 * @vsi: pointer to vsi struct
1800 * @from: Pointer to list which contains MAC filter entries - changes to
1801 * those entries needs to be undone.
1803 * MAC filter entries from list were slated to be removed from device.
1805 static void i40e_undo_del_filter_entries(struct i40e_vsi
*vsi
,
1806 struct list_head
*from
)
1808 struct i40e_mac_filter
*f
, *ftmp
;
1810 list_for_each_entry_safe(f
, ftmp
, from
, list
) {
1812 /* Move the element back into MAC filter list*/
1813 list_move_tail(&f
->list
, &vsi
->mac_filter_list
);
1818 * i40e_undo_add_filter_entries - Undo the changes made to MAC filter entries
1819 * @vsi: pointer to vsi struct
1821 * MAC filter entries from list were slated to be added from device.
1823 static void i40e_undo_add_filter_entries(struct i40e_vsi
*vsi
)
1825 struct i40e_mac_filter
*f
, *ftmp
;
1827 list_for_each_entry_safe(f
, ftmp
, &vsi
->mac_filter_list
, list
) {
1828 if (!f
->changed
&& f
->counter
)
1834 * i40e_cleanup_add_list - Deletes the element from add list and release
1836 * @add_list: Pointer to list which contains MAC filter entries
1838 static void i40e_cleanup_add_list(struct list_head
*add_list
)
1840 struct i40e_mac_filter
*f
, *ftmp
;
1842 list_for_each_entry_safe(f
, ftmp
, add_list
, list
) {
1849 * i40e_sync_vsi_filters - Update the VSI filter list to the HW
1850 * @vsi: ptr to the VSI
1852 * Push any outstanding VSI filter changes through the AdminQ.
1854 * Returns 0 or error value
1856 int i40e_sync_vsi_filters(struct i40e_vsi
*vsi
)
1858 struct list_head tmp_del_list
, tmp_add_list
;
1859 struct i40e_mac_filter
*f
, *ftmp
, *fclone
;
1860 bool promisc_forced_on
= false;
1861 bool add_happened
= false;
1862 int filter_list_len
= 0;
1863 u32 changed_flags
= 0;
1864 i40e_status aq_ret
= 0;
1865 bool err_cond
= false;
1873 /* empty array typed pointers, kcalloc later */
1874 struct i40e_aqc_add_macvlan_element_data
*add_list
;
1875 struct i40e_aqc_remove_macvlan_element_data
*del_list
;
1877 while (test_and_set_bit(__I40E_CONFIG_BUSY
, &vsi
->state
))
1878 usleep_range(1000, 2000);
1882 changed_flags
= vsi
->current_netdev_flags
^ vsi
->netdev
->flags
;
1883 vsi
->current_netdev_flags
= vsi
->netdev
->flags
;
1886 INIT_LIST_HEAD(&tmp_del_list
);
1887 INIT_LIST_HEAD(&tmp_add_list
);
1889 if (vsi
->flags
& I40E_VSI_FLAG_FILTER_CHANGED
) {
1890 vsi
->flags
&= ~I40E_VSI_FLAG_FILTER_CHANGED
;
1892 spin_lock_bh(&vsi
->mac_filter_list_lock
);
1893 list_for_each_entry_safe(f
, ftmp
, &vsi
->mac_filter_list
, list
) {
1897 if (f
->counter
!= 0)
1901 /* Move the element into temporary del_list */
1902 list_move_tail(&f
->list
, &tmp_del_list
);
1905 list_for_each_entry_safe(f
, ftmp
, &vsi
->mac_filter_list
, list
) {
1909 if (f
->counter
== 0)
1913 /* Clone MAC filter entry and add into temporary list */
1914 fclone
= i40e_mac_filter_entry_clone(f
);
1919 list_add_tail(&fclone
->list
, &tmp_add_list
);
1922 /* if failed to clone MAC filter entry - undo */
1924 i40e_undo_del_filter_entries(vsi
, &tmp_del_list
);
1925 i40e_undo_add_filter_entries(vsi
);
1927 spin_unlock_bh(&vsi
->mac_filter_list_lock
);
1930 i40e_cleanup_add_list(&tmp_add_list
);
1936 /* Now process 'del_list' outside the lock */
1937 if (!list_empty(&tmp_del_list
)) {
1940 filter_list_len
= pf
->hw
.aq
.asq_buf_size
/
1941 sizeof(struct i40e_aqc_remove_macvlan_element_data
);
1942 del_list_size
= filter_list_len
*
1943 sizeof(struct i40e_aqc_remove_macvlan_element_data
);
1944 del_list
= kzalloc(del_list_size
, GFP_ATOMIC
);
1946 i40e_cleanup_add_list(&tmp_add_list
);
1948 /* Undo VSI's MAC filter entry element updates */
1949 spin_lock_bh(&vsi
->mac_filter_list_lock
);
1950 i40e_undo_del_filter_entries(vsi
, &tmp_del_list
);
1951 i40e_undo_add_filter_entries(vsi
);
1952 spin_unlock_bh(&vsi
->mac_filter_list_lock
);
1957 list_for_each_entry_safe(f
, ftmp
, &tmp_del_list
, list
) {
1960 /* add to delete list */
1961 ether_addr_copy(del_list
[num_del
].mac_addr
, f
->macaddr
);
1962 del_list
[num_del
].vlan_tag
=
1963 cpu_to_le16((u16
)(f
->vlan
==
1964 I40E_VLAN_ANY
? 0 : f
->vlan
));
1966 cmd_flags
|= I40E_AQC_MACVLAN_DEL_PERFECT_MATCH
;
1967 del_list
[num_del
].flags
= cmd_flags
;
1970 /* flush a full buffer */
1971 if (num_del
== filter_list_len
) {
1972 aq_ret
= i40e_aq_remove_macvlan(&pf
->hw
,
1977 aq_err
= pf
->hw
.aq
.asq_last_status
;
1979 memset(del_list
, 0, del_list_size
);
1981 if (aq_ret
&& aq_err
!= I40E_AQ_RC_ENOENT
) {
1983 dev_err(&pf
->pdev
->dev
,
1984 "ignoring delete macvlan error, err %s, aq_err %s while flushing a full buffer\n",
1985 i40e_stat_str(&pf
->hw
, aq_ret
),
1986 i40e_aq_str(&pf
->hw
, aq_err
));
1989 /* Release memory for MAC filter entries which were
1990 * synced up with HW.
1997 aq_ret
= i40e_aq_remove_macvlan(&pf
->hw
, vsi
->seid
,
2000 aq_err
= pf
->hw
.aq
.asq_last_status
;
2003 if (aq_ret
&& aq_err
!= I40E_AQ_RC_ENOENT
)
2004 dev_info(&pf
->pdev
->dev
,
2005 "ignoring delete macvlan error, err %s aq_err %s\n",
2006 i40e_stat_str(&pf
->hw
, aq_ret
),
2007 i40e_aq_str(&pf
->hw
, aq_err
));
2014 if (!list_empty(&tmp_add_list
)) {
2017 /* do all the adds now */
2018 filter_list_len
= pf
->hw
.aq
.asq_buf_size
/
2019 sizeof(struct i40e_aqc_add_macvlan_element_data
),
2020 add_list_size
= filter_list_len
*
2021 sizeof(struct i40e_aqc_add_macvlan_element_data
);
2022 add_list
= kzalloc(add_list_size
, GFP_ATOMIC
);
2024 /* Purge element from temporary lists */
2025 i40e_cleanup_add_list(&tmp_add_list
);
2027 /* Undo add filter entries from VSI MAC filter list */
2028 spin_lock_bh(&vsi
->mac_filter_list_lock
);
2029 i40e_undo_add_filter_entries(vsi
);
2030 spin_unlock_bh(&vsi
->mac_filter_list_lock
);
2035 list_for_each_entry_safe(f
, ftmp
, &tmp_add_list
, list
) {
2037 add_happened
= true;
2040 /* add to add array */
2041 ether_addr_copy(add_list
[num_add
].mac_addr
, f
->macaddr
);
2042 add_list
[num_add
].vlan_tag
=
2044 (u16
)(f
->vlan
== I40E_VLAN_ANY
? 0 : f
->vlan
));
2045 add_list
[num_add
].queue_number
= 0;
2047 cmd_flags
|= I40E_AQC_MACVLAN_ADD_PERFECT_MATCH
;
2048 add_list
[num_add
].flags
= cpu_to_le16(cmd_flags
);
2051 /* flush a full buffer */
2052 if (num_add
== filter_list_len
) {
2053 aq_ret
= i40e_aq_add_macvlan(&pf
->hw
, vsi
->seid
,
2056 aq_err
= pf
->hw
.aq
.asq_last_status
;
2061 memset(add_list
, 0, add_list_size
);
2063 /* Entries from tmp_add_list were cloned from MAC
2064 * filter list, hence clean those cloned entries
2071 aq_ret
= i40e_aq_add_macvlan(&pf
->hw
, vsi
->seid
,
2072 add_list
, num_add
, NULL
);
2073 aq_err
= pf
->hw
.aq
.asq_last_status
;
2079 if (add_happened
&& aq_ret
&& aq_err
!= I40E_AQ_RC_EINVAL
) {
2080 retval
= i40e_aq_rc_to_posix(aq_ret
, aq_err
);
2081 dev_info(&pf
->pdev
->dev
,
2082 "add filter failed, err %s aq_err %s\n",
2083 i40e_stat_str(&pf
->hw
, aq_ret
),
2084 i40e_aq_str(&pf
->hw
, aq_err
));
2085 if ((pf
->hw
.aq
.asq_last_status
== I40E_AQ_RC_ENOSPC
) &&
2086 !test_bit(__I40E_FILTER_OVERFLOW_PROMISC
,
2088 promisc_forced_on
= true;
2089 set_bit(__I40E_FILTER_OVERFLOW_PROMISC
,
2091 dev_info(&pf
->pdev
->dev
, "promiscuous mode forced on\n");
2096 /* check for changes in promiscuous modes */
2097 if (changed_flags
& IFF_ALLMULTI
) {
2098 bool cur_multipromisc
;
2100 cur_multipromisc
= !!(vsi
->current_netdev_flags
& IFF_ALLMULTI
);
2101 aq_ret
= i40e_aq_set_vsi_multicast_promiscuous(&vsi
->back
->hw
,
2106 retval
= i40e_aq_rc_to_posix(aq_ret
,
2107 pf
->hw
.aq
.asq_last_status
);
2108 dev_info(&pf
->pdev
->dev
,
2109 "set multi promisc failed, err %s aq_err %s\n",
2110 i40e_stat_str(&pf
->hw
, aq_ret
),
2111 i40e_aq_str(&pf
->hw
,
2112 pf
->hw
.aq
.asq_last_status
));
2115 if ((changed_flags
& IFF_PROMISC
) || promisc_forced_on
) {
2118 cur_promisc
= (!!(vsi
->current_netdev_flags
& IFF_PROMISC
) ||
2119 test_bit(__I40E_FILTER_OVERFLOW_PROMISC
,
2121 if (vsi
->type
== I40E_VSI_MAIN
&& pf
->lan_veb
!= I40E_NO_VEB
) {
2122 /* set defport ON for Main VSI instead of true promisc
2123 * this way we will get all unicast/multicast and VLAN
2124 * promisc behavior but will not get VF or VMDq traffic
2125 * replicated on the Main VSI.
2127 if (pf
->cur_promisc
!= cur_promisc
) {
2128 pf
->cur_promisc
= cur_promisc
;
2129 set_bit(__I40E_PF_RESET_REQUESTED
, &pf
->state
);
2132 aq_ret
= i40e_aq_set_vsi_unicast_promiscuous(
2138 i40e_aq_rc_to_posix(aq_ret
,
2139 pf
->hw
.aq
.asq_last_status
);
2140 dev_info(&pf
->pdev
->dev
,
2141 "set unicast promisc failed, err %d, aq_err %d\n",
2142 aq_ret
, pf
->hw
.aq
.asq_last_status
);
2144 aq_ret
= i40e_aq_set_vsi_multicast_promiscuous(
2150 i40e_aq_rc_to_posix(aq_ret
,
2151 pf
->hw
.aq
.asq_last_status
);
2152 dev_info(&pf
->pdev
->dev
,
2153 "set multicast promisc failed, err %d, aq_err %d\n",
2154 aq_ret
, pf
->hw
.aq
.asq_last_status
);
2157 aq_ret
= i40e_aq_set_vsi_broadcast(&vsi
->back
->hw
,
2161 retval
= i40e_aq_rc_to_posix(aq_ret
,
2162 pf
->hw
.aq
.asq_last_status
);
2163 dev_info(&pf
->pdev
->dev
,
2164 "set brdcast promisc failed, err %s, aq_err %s\n",
2165 i40e_stat_str(&pf
->hw
, aq_ret
),
2166 i40e_aq_str(&pf
->hw
,
2167 pf
->hw
.aq
.asq_last_status
));
2171 /* if something went wrong then set the changed flag so we try again */
2173 vsi
->flags
|= I40E_VSI_FLAG_FILTER_CHANGED
;
2175 clear_bit(__I40E_CONFIG_BUSY
, &vsi
->state
);
2180 * i40e_sync_filters_subtask - Sync the VSI filter list with HW
2181 * @pf: board private structure
2183 static void i40e_sync_filters_subtask(struct i40e_pf
*pf
)
2187 if (!pf
|| !(pf
->flags
& I40E_FLAG_FILTER_SYNC
))
2189 pf
->flags
&= ~I40E_FLAG_FILTER_SYNC
;
2191 for (v
= 0; v
< pf
->num_alloc_vsi
; v
++) {
2193 (pf
->vsi
[v
]->flags
& I40E_VSI_FLAG_FILTER_CHANGED
)) {
2194 int ret
= i40e_sync_vsi_filters(pf
->vsi
[v
]);
2197 /* come back and try again later */
2198 pf
->flags
|= I40E_FLAG_FILTER_SYNC
;
2206 * i40e_change_mtu - NDO callback to change the Maximum Transfer Unit
2207 * @netdev: network interface device structure
2208 * @new_mtu: new value for maximum frame size
2210 * Returns 0 on success, negative on failure
2212 static int i40e_change_mtu(struct net_device
*netdev
, int new_mtu
)
2214 struct i40e_netdev_priv
*np
= netdev_priv(netdev
);
2215 int max_frame
= new_mtu
+ ETH_HLEN
+ ETH_FCS_LEN
+ VLAN_HLEN
;
2216 struct i40e_vsi
*vsi
= np
->vsi
;
2218 /* MTU < 68 is an error and causes problems on some kernels */
2219 if ((new_mtu
< 68) || (max_frame
> I40E_MAX_RXBUFFER
))
2222 netdev_info(netdev
, "changing MTU from %d to %d\n",
2223 netdev
->mtu
, new_mtu
);
2224 netdev
->mtu
= new_mtu
;
2225 if (netif_running(netdev
))
2226 i40e_vsi_reinit_locked(vsi
);
2232 * i40e_ioctl - Access the hwtstamp interface
2233 * @netdev: network interface device structure
2234 * @ifr: interface request data
2235 * @cmd: ioctl command
2237 int i40e_ioctl(struct net_device
*netdev
, struct ifreq
*ifr
, int cmd
)
2239 struct i40e_netdev_priv
*np
= netdev_priv(netdev
);
2240 struct i40e_pf
*pf
= np
->vsi
->back
;
2244 return i40e_ptp_get_ts_config(pf
, ifr
);
2246 return i40e_ptp_set_ts_config(pf
, ifr
);
2253 * i40e_vlan_stripping_enable - Turn on vlan stripping for the VSI
2254 * @vsi: the vsi being adjusted
2256 void i40e_vlan_stripping_enable(struct i40e_vsi
*vsi
)
2258 struct i40e_vsi_context ctxt
;
2261 if ((vsi
->info
.valid_sections
&
2262 cpu_to_le16(I40E_AQ_VSI_PROP_VLAN_VALID
)) &&
2263 ((vsi
->info
.port_vlan_flags
& I40E_AQ_VSI_PVLAN_MODE_MASK
) == 0))
2264 return; /* already enabled */
2266 vsi
->info
.valid_sections
= cpu_to_le16(I40E_AQ_VSI_PROP_VLAN_VALID
);
2267 vsi
->info
.port_vlan_flags
= I40E_AQ_VSI_PVLAN_MODE_ALL
|
2268 I40E_AQ_VSI_PVLAN_EMOD_STR_BOTH
;
2270 ctxt
.seid
= vsi
->seid
;
2271 ctxt
.info
= vsi
->info
;
2272 ret
= i40e_aq_update_vsi_params(&vsi
->back
->hw
, &ctxt
, NULL
);
2274 dev_info(&vsi
->back
->pdev
->dev
,
2275 "update vlan stripping failed, err %s aq_err %s\n",
2276 i40e_stat_str(&vsi
->back
->hw
, ret
),
2277 i40e_aq_str(&vsi
->back
->hw
,
2278 vsi
->back
->hw
.aq
.asq_last_status
));
2283 * i40e_vlan_stripping_disable - Turn off vlan stripping for the VSI
2284 * @vsi: the vsi being adjusted
2286 void i40e_vlan_stripping_disable(struct i40e_vsi
*vsi
)
2288 struct i40e_vsi_context ctxt
;
2291 if ((vsi
->info
.valid_sections
&
2292 cpu_to_le16(I40E_AQ_VSI_PROP_VLAN_VALID
)) &&
2293 ((vsi
->info
.port_vlan_flags
& I40E_AQ_VSI_PVLAN_EMOD_MASK
) ==
2294 I40E_AQ_VSI_PVLAN_EMOD_MASK
))
2295 return; /* already disabled */
2297 vsi
->info
.valid_sections
= cpu_to_le16(I40E_AQ_VSI_PROP_VLAN_VALID
);
2298 vsi
->info
.port_vlan_flags
= I40E_AQ_VSI_PVLAN_MODE_ALL
|
2299 I40E_AQ_VSI_PVLAN_EMOD_NOTHING
;
2301 ctxt
.seid
= vsi
->seid
;
2302 ctxt
.info
= vsi
->info
;
2303 ret
= i40e_aq_update_vsi_params(&vsi
->back
->hw
, &ctxt
, NULL
);
2305 dev_info(&vsi
->back
->pdev
->dev
,
2306 "update vlan stripping failed, err %s aq_err %s\n",
2307 i40e_stat_str(&vsi
->back
->hw
, ret
),
2308 i40e_aq_str(&vsi
->back
->hw
,
2309 vsi
->back
->hw
.aq
.asq_last_status
));
2314 * i40e_vlan_rx_register - Setup or shutdown vlan offload
2315 * @netdev: network interface to be adjusted
2316 * @features: netdev features to test if VLAN offload is enabled or not
2318 static void i40e_vlan_rx_register(struct net_device
*netdev
, u32 features
)
2320 struct i40e_netdev_priv
*np
= netdev_priv(netdev
);
2321 struct i40e_vsi
*vsi
= np
->vsi
;
2323 if (features
& NETIF_F_HW_VLAN_CTAG_RX
)
2324 i40e_vlan_stripping_enable(vsi
);
2326 i40e_vlan_stripping_disable(vsi
);
2330 * i40e_vsi_add_vlan - Add vsi membership for given vlan
2331 * @vsi: the vsi being configured
2332 * @vid: vlan id to be added (0 = untagged only , -1 = any)
2334 int i40e_vsi_add_vlan(struct i40e_vsi
*vsi
, s16 vid
)
2336 struct i40e_mac_filter
*f
, *add_f
;
2337 bool is_netdev
, is_vf
;
2339 is_vf
= (vsi
->type
== I40E_VSI_SRIOV
);
2340 is_netdev
= !!(vsi
->netdev
);
2342 /* Locked once because all functions invoked below iterates list*/
2343 spin_lock_bh(&vsi
->mac_filter_list_lock
);
2346 add_f
= i40e_add_filter(vsi
, vsi
->netdev
->dev_addr
, vid
,
2349 dev_info(&vsi
->back
->pdev
->dev
,
2350 "Could not add vlan filter %d for %pM\n",
2351 vid
, vsi
->netdev
->dev_addr
);
2352 spin_unlock_bh(&vsi
->mac_filter_list_lock
);
2357 list_for_each_entry(f
, &vsi
->mac_filter_list
, list
) {
2358 add_f
= i40e_add_filter(vsi
, f
->macaddr
, vid
, is_vf
, is_netdev
);
2360 dev_info(&vsi
->back
->pdev
->dev
,
2361 "Could not add vlan filter %d for %pM\n",
2363 spin_unlock_bh(&vsi
->mac_filter_list_lock
);
2368 /* Now if we add a vlan tag, make sure to check if it is the first
2369 * tag (i.e. a "tag" -1 does exist) and if so replace the -1 "tag"
2370 * with 0, so we now accept untagged and specified tagged traffic
2371 * (and not any taged and untagged)
2374 if (is_netdev
&& i40e_find_filter(vsi
, vsi
->netdev
->dev_addr
,
2376 is_vf
, is_netdev
)) {
2377 i40e_del_filter(vsi
, vsi
->netdev
->dev_addr
,
2378 I40E_VLAN_ANY
, is_vf
, is_netdev
);
2379 add_f
= i40e_add_filter(vsi
, vsi
->netdev
->dev_addr
, 0,
2382 dev_info(&vsi
->back
->pdev
->dev
,
2383 "Could not add filter 0 for %pM\n",
2384 vsi
->netdev
->dev_addr
);
2385 spin_unlock_bh(&vsi
->mac_filter_list_lock
);
2391 /* Do not assume that I40E_VLAN_ANY should be reset to VLAN 0 */
2392 if (vid
> 0 && !vsi
->info
.pvid
) {
2393 list_for_each_entry(f
, &vsi
->mac_filter_list
, list
) {
2394 if (!i40e_find_filter(vsi
, f
->macaddr
, I40E_VLAN_ANY
,
2397 i40e_del_filter(vsi
, f
->macaddr
, I40E_VLAN_ANY
,
2399 add_f
= i40e_add_filter(vsi
, f
->macaddr
,
2400 0, is_vf
, is_netdev
);
2402 dev_info(&vsi
->back
->pdev
->dev
,
2403 "Could not add filter 0 for %pM\n",
2405 spin_unlock_bh(&vsi
->mac_filter_list_lock
);
2411 spin_unlock_bh(&vsi
->mac_filter_list_lock
);
2413 /* schedule our worker thread which will take care of
2414 * applying the new filter changes
2416 i40e_service_event_schedule(vsi
->back
);
2421 * i40e_vsi_kill_vlan - Remove vsi membership for given vlan
2422 * @vsi: the vsi being configured
2423 * @vid: vlan id to be removed (0 = untagged only , -1 = any)
2425 * Return: 0 on success or negative otherwise
2427 int i40e_vsi_kill_vlan(struct i40e_vsi
*vsi
, s16 vid
)
2429 struct net_device
*netdev
= vsi
->netdev
;
2430 struct i40e_mac_filter
*f
, *add_f
;
2431 bool is_vf
, is_netdev
;
2432 int filter_count
= 0;
2434 is_vf
= (vsi
->type
== I40E_VSI_SRIOV
);
2435 is_netdev
= !!(netdev
);
2437 /* Locked once because all functions invoked below iterates list */
2438 spin_lock_bh(&vsi
->mac_filter_list_lock
);
2441 i40e_del_filter(vsi
, netdev
->dev_addr
, vid
, is_vf
, is_netdev
);
2443 list_for_each_entry(f
, &vsi
->mac_filter_list
, list
)
2444 i40e_del_filter(vsi
, f
->macaddr
, vid
, is_vf
, is_netdev
);
2446 /* go through all the filters for this VSI and if there is only
2447 * vid == 0 it means there are no other filters, so vid 0 must
2448 * be replaced with -1. This signifies that we should from now
2449 * on accept any traffic (with any tag present, or untagged)
2451 list_for_each_entry(f
, &vsi
->mac_filter_list
, list
) {
2454 ether_addr_equal(netdev
->dev_addr
, f
->macaddr
))
2462 if (!filter_count
&& is_netdev
) {
2463 i40e_del_filter(vsi
, netdev
->dev_addr
, 0, is_vf
, is_netdev
);
2464 f
= i40e_add_filter(vsi
, netdev
->dev_addr
, I40E_VLAN_ANY
,
2467 dev_info(&vsi
->back
->pdev
->dev
,
2468 "Could not add filter %d for %pM\n",
2469 I40E_VLAN_ANY
, netdev
->dev_addr
);
2470 spin_unlock_bh(&vsi
->mac_filter_list_lock
);
2475 if (!filter_count
) {
2476 list_for_each_entry(f
, &vsi
->mac_filter_list
, list
) {
2477 i40e_del_filter(vsi
, f
->macaddr
, 0, is_vf
, is_netdev
);
2478 add_f
= i40e_add_filter(vsi
, f
->macaddr
, I40E_VLAN_ANY
,
2481 dev_info(&vsi
->back
->pdev
->dev
,
2482 "Could not add filter %d for %pM\n",
2483 I40E_VLAN_ANY
, f
->macaddr
);
2484 spin_unlock_bh(&vsi
->mac_filter_list_lock
);
2490 spin_unlock_bh(&vsi
->mac_filter_list_lock
);
2492 /* schedule our worker thread which will take care of
2493 * applying the new filter changes
2495 i40e_service_event_schedule(vsi
->back
);
2500 * i40e_vlan_rx_add_vid - Add a vlan id filter to HW offload
2501 * @netdev: network interface to be adjusted
2502 * @vid: vlan id to be added
2504 * net_device_ops implementation for adding vlan ids
2507 int i40e_vlan_rx_add_vid(struct net_device
*netdev
,
2508 __always_unused __be16 proto
, u16 vid
)
2510 static int i40e_vlan_rx_add_vid(struct net_device
*netdev
,
2511 __always_unused __be16 proto
, u16 vid
)
2514 struct i40e_netdev_priv
*np
= netdev_priv(netdev
);
2515 struct i40e_vsi
*vsi
= np
->vsi
;
2521 netdev_info(netdev
, "adding %pM vid=%d\n", netdev
->dev_addr
, vid
);
2523 /* If the network stack called us with vid = 0 then
2524 * it is asking to receive priority tagged packets with
2525 * vlan id 0. Our HW receives them by default when configured
2526 * to receive untagged packets so there is no need to add an
2527 * extra filter for vlan 0 tagged packets.
2530 ret
= i40e_vsi_add_vlan(vsi
, vid
);
2532 if (!ret
&& (vid
< VLAN_N_VID
))
2533 set_bit(vid
, vsi
->active_vlans
);
2539 * i40e_vlan_rx_kill_vid - Remove a vlan id filter from HW offload
2540 * @netdev: network interface to be adjusted
2541 * @vid: vlan id to be removed
2543 * net_device_ops implementation for removing vlan ids
2546 int i40e_vlan_rx_kill_vid(struct net_device
*netdev
,
2547 __always_unused __be16 proto
, u16 vid
)
2549 static int i40e_vlan_rx_kill_vid(struct net_device
*netdev
,
2550 __always_unused __be16 proto
, u16 vid
)
2553 struct i40e_netdev_priv
*np
= netdev_priv(netdev
);
2554 struct i40e_vsi
*vsi
= np
->vsi
;
2556 netdev_info(netdev
, "removing %pM vid=%d\n", netdev
->dev_addr
, vid
);
2558 /* return code is ignored as there is nothing a user
2559 * can do about failure to remove and a log message was
2560 * already printed from the other function
2562 i40e_vsi_kill_vlan(vsi
, vid
);
2564 clear_bit(vid
, vsi
->active_vlans
);
2570 * i40e_restore_vlan - Reinstate vlans when vsi/netdev comes back up
2571 * @vsi: the vsi being brought back up
2573 static void i40e_restore_vlan(struct i40e_vsi
*vsi
)
2580 i40e_vlan_rx_register(vsi
->netdev
, vsi
->netdev
->features
);
2582 for_each_set_bit(vid
, vsi
->active_vlans
, VLAN_N_VID
)
2583 i40e_vlan_rx_add_vid(vsi
->netdev
, htons(ETH_P_8021Q
),
2588 * i40e_vsi_add_pvid - Add pvid for the VSI
2589 * @vsi: the vsi being adjusted
2590 * @vid: the vlan id to set as a PVID
2592 int i40e_vsi_add_pvid(struct i40e_vsi
*vsi
, u16 vid
)
2594 struct i40e_vsi_context ctxt
;
2597 vsi
->info
.valid_sections
= cpu_to_le16(I40E_AQ_VSI_PROP_VLAN_VALID
);
2598 vsi
->info
.pvid
= cpu_to_le16(vid
);
2599 vsi
->info
.port_vlan_flags
= I40E_AQ_VSI_PVLAN_MODE_TAGGED
|
2600 I40E_AQ_VSI_PVLAN_INSERT_PVID
|
2601 I40E_AQ_VSI_PVLAN_EMOD_STR
;
2603 ctxt
.seid
= vsi
->seid
;
2604 ctxt
.info
= vsi
->info
;
2605 ret
= i40e_aq_update_vsi_params(&vsi
->back
->hw
, &ctxt
, NULL
);
2607 dev_info(&vsi
->back
->pdev
->dev
,
2608 "add pvid failed, err %s aq_err %s\n",
2609 i40e_stat_str(&vsi
->back
->hw
, ret
),
2610 i40e_aq_str(&vsi
->back
->hw
,
2611 vsi
->back
->hw
.aq
.asq_last_status
));
2619 * i40e_vsi_remove_pvid - Remove the pvid from the VSI
2620 * @vsi: the vsi being adjusted
2622 * Just use the vlan_rx_register() service to put it back to normal
2624 void i40e_vsi_remove_pvid(struct i40e_vsi
*vsi
)
2626 i40e_vlan_stripping_disable(vsi
);
2632 * i40e_vsi_setup_tx_resources - Allocate VSI Tx queue resources
2633 * @vsi: ptr to the VSI
2635 * If this function returns with an error, then it's possible one or
2636 * more of the rings is populated (while the rest are not). It is the
2637 * callers duty to clean those orphaned rings.
2639 * Return 0 on success, negative on failure
2641 static int i40e_vsi_setup_tx_resources(struct i40e_vsi
*vsi
)
2645 for (i
= 0; i
< vsi
->num_queue_pairs
&& !err
; i
++)
2646 err
= i40e_setup_tx_descriptors(vsi
->tx_rings
[i
]);
2652 * i40e_vsi_free_tx_resources - Free Tx resources for VSI queues
2653 * @vsi: ptr to the VSI
2655 * Free VSI's transmit software resources
2657 static void i40e_vsi_free_tx_resources(struct i40e_vsi
*vsi
)
2664 for (i
= 0; i
< vsi
->num_queue_pairs
; i
++)
2665 if (vsi
->tx_rings
[i
] && vsi
->tx_rings
[i
]->desc
)
2666 i40e_free_tx_resources(vsi
->tx_rings
[i
]);
2670 * i40e_vsi_setup_rx_resources - Allocate VSI queues Rx resources
2671 * @vsi: ptr to the VSI
2673 * If this function returns with an error, then it's possible one or
2674 * more of the rings is populated (while the rest are not). It is the
2675 * callers duty to clean those orphaned rings.
2677 * Return 0 on success, negative on failure
2679 static int i40e_vsi_setup_rx_resources(struct i40e_vsi
*vsi
)
2683 for (i
= 0; i
< vsi
->num_queue_pairs
&& !err
; i
++)
2684 err
= i40e_setup_rx_descriptors(vsi
->rx_rings
[i
]);
2686 i40e_fcoe_setup_ddp_resources(vsi
);
2692 * i40e_vsi_free_rx_resources - Free Rx Resources for VSI queues
2693 * @vsi: ptr to the VSI
2695 * Free all receive software resources
2697 static void i40e_vsi_free_rx_resources(struct i40e_vsi
*vsi
)
2704 for (i
= 0; i
< vsi
->num_queue_pairs
; i
++)
2705 if (vsi
->rx_rings
[i
] && vsi
->rx_rings
[i
]->desc
)
2706 i40e_free_rx_resources(vsi
->rx_rings
[i
]);
2708 i40e_fcoe_free_ddp_resources(vsi
);
2713 * i40e_config_xps_tx_ring - Configure XPS for a Tx ring
2714 * @ring: The Tx ring to configure
2716 * This enables/disables XPS for a given Tx descriptor ring
2717 * based on the TCs enabled for the VSI that ring belongs to.
2719 static void i40e_config_xps_tx_ring(struct i40e_ring
*ring
)
2721 struct i40e_vsi
*vsi
= ring
->vsi
;
2724 if (!ring
->q_vector
|| !ring
->netdev
)
2727 /* Single TC mode enable XPS */
2728 if (vsi
->tc_config
.numtc
<= 1) {
2729 if (!test_and_set_bit(__I40E_TX_XPS_INIT_DONE
, &ring
->state
))
2730 netif_set_xps_queue(ring
->netdev
,
2731 &ring
->q_vector
->affinity_mask
,
2733 } else if (alloc_cpumask_var(&mask
, GFP_KERNEL
)) {
2734 /* Disable XPS to allow selection based on TC */
2735 bitmap_zero(cpumask_bits(mask
), nr_cpumask_bits
);
2736 netif_set_xps_queue(ring
->netdev
, mask
, ring
->queue_index
);
2737 free_cpumask_var(mask
);
2740 /* schedule our worker thread which will take care of
2741 * applying the new filter changes
2743 i40e_service_event_schedule(vsi
->back
);
2747 * i40e_configure_tx_ring - Configure a transmit ring context and rest
2748 * @ring: The Tx ring to configure
2750 * Configure the Tx descriptor ring in the HMC context.
2752 static int i40e_configure_tx_ring(struct i40e_ring
*ring
)
2754 struct i40e_vsi
*vsi
= ring
->vsi
;
2755 u16 pf_q
= vsi
->base_queue
+ ring
->queue_index
;
2756 struct i40e_hw
*hw
= &vsi
->back
->hw
;
2757 struct i40e_hmc_obj_txq tx_ctx
;
2758 i40e_status err
= 0;
2761 /* some ATR related tx ring init */
2762 if (vsi
->back
->flags
& I40E_FLAG_FD_ATR_ENABLED
) {
2763 ring
->atr_sample_rate
= vsi
->back
->atr_sample_rate
;
2764 ring
->atr_count
= 0;
2766 ring
->atr_sample_rate
= 0;
2770 i40e_config_xps_tx_ring(ring
);
2772 /* clear the context structure first */
2773 memset(&tx_ctx
, 0, sizeof(tx_ctx
));
2775 tx_ctx
.new_context
= 1;
2776 tx_ctx
.base
= (ring
->dma
/ 128);
2777 tx_ctx
.qlen
= ring
->count
;
2778 tx_ctx
.fd_ena
= !!(vsi
->back
->flags
& (I40E_FLAG_FD_SB_ENABLED
|
2779 I40E_FLAG_FD_ATR_ENABLED
));
2781 tx_ctx
.fc_ena
= (vsi
->type
== I40E_VSI_FCOE
);
2783 tx_ctx
.timesync_ena
= !!(vsi
->back
->flags
& I40E_FLAG_PTP
);
2784 /* FDIR VSI tx ring can still use RS bit and writebacks */
2785 if (vsi
->type
!= I40E_VSI_FDIR
)
2786 tx_ctx
.head_wb_ena
= 1;
2787 tx_ctx
.head_wb_addr
= ring
->dma
+
2788 (ring
->count
* sizeof(struct i40e_tx_desc
));
2790 /* As part of VSI creation/update, FW allocates certain
2791 * Tx arbitration queue sets for each TC enabled for
2792 * the VSI. The FW returns the handles to these queue
2793 * sets as part of the response buffer to Add VSI,
2794 * Update VSI, etc. AQ commands. It is expected that
2795 * these queue set handles be associated with the Tx
2796 * queues by the driver as part of the TX queue context
2797 * initialization. This has to be done regardless of
2798 * DCB as by default everything is mapped to TC0.
2800 tx_ctx
.rdylist
= le16_to_cpu(vsi
->info
.qs_handle
[ring
->dcb_tc
]);
2801 tx_ctx
.rdylist_act
= 0;
2803 /* clear the context in the HMC */
2804 err
= i40e_clear_lan_tx_queue_context(hw
, pf_q
);
2806 dev_info(&vsi
->back
->pdev
->dev
,
2807 "Failed to clear LAN Tx queue context on Tx ring %d (pf_q %d), error: %d\n",
2808 ring
->queue_index
, pf_q
, err
);
2812 /* set the context in the HMC */
2813 err
= i40e_set_lan_tx_queue_context(hw
, pf_q
, &tx_ctx
);
2815 dev_info(&vsi
->back
->pdev
->dev
,
2816 "Failed to set LAN Tx queue context on Tx ring %d (pf_q %d, error: %d\n",
2817 ring
->queue_index
, pf_q
, err
);
2821 /* Now associate this queue with this PCI function */
2822 if (vsi
->type
== I40E_VSI_VMDQ2
) {
2823 qtx_ctl
= I40E_QTX_CTL_VM_QUEUE
;
2824 qtx_ctl
|= ((vsi
->id
) << I40E_QTX_CTL_VFVM_INDX_SHIFT
) &
2825 I40E_QTX_CTL_VFVM_INDX_MASK
;
2827 qtx_ctl
= I40E_QTX_CTL_PF_QUEUE
;
2830 qtx_ctl
|= ((hw
->pf_id
<< I40E_QTX_CTL_PF_INDX_SHIFT
) &
2831 I40E_QTX_CTL_PF_INDX_MASK
);
2832 wr32(hw
, I40E_QTX_CTL(pf_q
), qtx_ctl
);
2835 /* cache tail off for easier writes later */
2836 ring
->tail
= hw
->hw_addr
+ I40E_QTX_TAIL(pf_q
);
2842 * i40e_configure_rx_ring - Configure a receive ring context
2843 * @ring: The Rx ring to configure
2845 * Configure the Rx descriptor ring in the HMC context.
2847 static int i40e_configure_rx_ring(struct i40e_ring
*ring
)
2849 struct i40e_vsi
*vsi
= ring
->vsi
;
2850 u32 chain_len
= vsi
->back
->hw
.func_caps
.rx_buf_chain_len
;
2851 u16 pf_q
= vsi
->base_queue
+ ring
->queue_index
;
2852 struct i40e_hw
*hw
= &vsi
->back
->hw
;
2853 struct i40e_hmc_obj_rxq rx_ctx
;
2854 i40e_status err
= 0;
2858 /* clear the context structure first */
2859 memset(&rx_ctx
, 0, sizeof(rx_ctx
));
2861 ring
->rx_buf_len
= vsi
->rx_buf_len
;
2862 ring
->rx_hdr_len
= vsi
->rx_hdr_len
;
2864 rx_ctx
.dbuff
= ring
->rx_buf_len
>> I40E_RXQ_CTX_DBUFF_SHIFT
;
2865 rx_ctx
.hbuff
= ring
->rx_hdr_len
>> I40E_RXQ_CTX_HBUFF_SHIFT
;
2867 rx_ctx
.base
= (ring
->dma
/ 128);
2868 rx_ctx
.qlen
= ring
->count
;
2870 if (vsi
->back
->flags
& I40E_FLAG_16BYTE_RX_DESC_ENABLED
) {
2871 set_ring_16byte_desc_enabled(ring
);
2877 rx_ctx
.dtype
= vsi
->dtype
;
2879 set_ring_ps_enabled(ring
);
2880 rx_ctx
.hsplit_0
= I40E_RX_SPLIT_L2
|
2882 I40E_RX_SPLIT_TCP_UDP
|
2885 rx_ctx
.hsplit_0
= 0;
2888 rx_ctx
.rxmax
= min_t(u16
, vsi
->max_frame
,
2889 (chain_len
* ring
->rx_buf_len
));
2890 if (hw
->revision_id
== 0)
2891 rx_ctx
.lrxqthresh
= 0;
2893 rx_ctx
.lrxqthresh
= 2;
2894 rx_ctx
.crcstrip
= 1;
2896 /* this controls whether VLAN is stripped from inner headers */
2899 rx_ctx
.fc_ena
= (vsi
->type
== I40E_VSI_FCOE
);
2901 /* set the prefena field to 1 because the manual says to */
2904 /* clear the context in the HMC */
2905 err
= i40e_clear_lan_rx_queue_context(hw
, pf_q
);
2907 dev_info(&vsi
->back
->pdev
->dev
,
2908 "Failed to clear LAN Rx queue context on Rx ring %d (pf_q %d), error: %d\n",
2909 ring
->queue_index
, pf_q
, err
);
2913 /* set the context in the HMC */
2914 err
= i40e_set_lan_rx_queue_context(hw
, pf_q
, &rx_ctx
);
2916 dev_info(&vsi
->back
->pdev
->dev
,
2917 "Failed to set LAN Rx queue context on Rx ring %d (pf_q %d), error: %d\n",
2918 ring
->queue_index
, pf_q
, err
);
2922 /* cache tail for quicker writes, and clear the reg before use */
2923 ring
->tail
= hw
->hw_addr
+ I40E_QRX_TAIL(pf_q
);
2924 writel(0, ring
->tail
);
2926 if (ring_is_ps_enabled(ring
)) {
2927 i40e_alloc_rx_headers(ring
);
2928 i40e_alloc_rx_buffers_ps(ring
, I40E_DESC_UNUSED(ring
));
2930 i40e_alloc_rx_buffers_1buf(ring
, I40E_DESC_UNUSED(ring
));
2937 * i40e_vsi_configure_tx - Configure the VSI for Tx
2938 * @vsi: VSI structure describing this set of rings and resources
2940 * Configure the Tx VSI for operation.
2942 static int i40e_vsi_configure_tx(struct i40e_vsi
*vsi
)
2947 for (i
= 0; (i
< vsi
->num_queue_pairs
) && !err
; i
++)
2948 err
= i40e_configure_tx_ring(vsi
->tx_rings
[i
]);
2954 * i40e_vsi_configure_rx - Configure the VSI for Rx
2955 * @vsi: the VSI being configured
2957 * Configure the Rx VSI for operation.
2959 static int i40e_vsi_configure_rx(struct i40e_vsi
*vsi
)
2964 if (vsi
->netdev
&& (vsi
->netdev
->mtu
> ETH_DATA_LEN
))
2965 vsi
->max_frame
= vsi
->netdev
->mtu
+ ETH_HLEN
2966 + ETH_FCS_LEN
+ VLAN_HLEN
;
2968 vsi
->max_frame
= I40E_RXBUFFER_2048
;
2970 /* figure out correct receive buffer length */
2971 switch (vsi
->back
->flags
& (I40E_FLAG_RX_1BUF_ENABLED
|
2972 I40E_FLAG_RX_PS_ENABLED
)) {
2973 case I40E_FLAG_RX_1BUF_ENABLED
:
2974 vsi
->rx_hdr_len
= 0;
2975 vsi
->rx_buf_len
= vsi
->max_frame
;
2976 vsi
->dtype
= I40E_RX_DTYPE_NO_SPLIT
;
2978 case I40E_FLAG_RX_PS_ENABLED
:
2979 vsi
->rx_hdr_len
= I40E_RX_HDR_SIZE
;
2980 vsi
->rx_buf_len
= I40E_RXBUFFER_2048
;
2981 vsi
->dtype
= I40E_RX_DTYPE_HEADER_SPLIT
;
2984 vsi
->rx_hdr_len
= I40E_RX_HDR_SIZE
;
2985 vsi
->rx_buf_len
= I40E_RXBUFFER_2048
;
2986 vsi
->dtype
= I40E_RX_DTYPE_SPLIT_ALWAYS
;
2991 /* setup rx buffer for FCoE */
2992 if ((vsi
->type
== I40E_VSI_FCOE
) &&
2993 (vsi
->back
->flags
& I40E_FLAG_FCOE_ENABLED
)) {
2994 vsi
->rx_hdr_len
= 0;
2995 vsi
->rx_buf_len
= I40E_RXBUFFER_3072
;
2996 vsi
->max_frame
= I40E_RXBUFFER_3072
;
2997 vsi
->dtype
= I40E_RX_DTYPE_NO_SPLIT
;
3000 #endif /* I40E_FCOE */
3001 /* round up for the chip's needs */
3002 vsi
->rx_hdr_len
= ALIGN(vsi
->rx_hdr_len
,
3003 BIT_ULL(I40E_RXQ_CTX_HBUFF_SHIFT
));
3004 vsi
->rx_buf_len
= ALIGN(vsi
->rx_buf_len
,
3005 BIT_ULL(I40E_RXQ_CTX_DBUFF_SHIFT
));
3007 /* set up individual rings */
3008 for (i
= 0; i
< vsi
->num_queue_pairs
&& !err
; i
++)
3009 err
= i40e_configure_rx_ring(vsi
->rx_rings
[i
]);
3015 * i40e_vsi_config_dcb_rings - Update rings to reflect DCB TC
3016 * @vsi: ptr to the VSI
3018 static void i40e_vsi_config_dcb_rings(struct i40e_vsi
*vsi
)
3020 struct i40e_ring
*tx_ring
, *rx_ring
;
3021 u16 qoffset
, qcount
;
3024 if (!(vsi
->back
->flags
& I40E_FLAG_DCB_ENABLED
)) {
3025 /* Reset the TC information */
3026 for (i
= 0; i
< vsi
->num_queue_pairs
; i
++) {
3027 rx_ring
= vsi
->rx_rings
[i
];
3028 tx_ring
= vsi
->tx_rings
[i
];
3029 rx_ring
->dcb_tc
= 0;
3030 tx_ring
->dcb_tc
= 0;
3034 for (n
= 0; n
< I40E_MAX_TRAFFIC_CLASS
; n
++) {
3035 if (!(vsi
->tc_config
.enabled_tc
& BIT_ULL(n
)))
3038 qoffset
= vsi
->tc_config
.tc_info
[n
].qoffset
;
3039 qcount
= vsi
->tc_config
.tc_info
[n
].qcount
;
3040 for (i
= qoffset
; i
< (qoffset
+ qcount
); i
++) {
3041 rx_ring
= vsi
->rx_rings
[i
];
3042 tx_ring
= vsi
->tx_rings
[i
];
3043 rx_ring
->dcb_tc
= n
;
3044 tx_ring
->dcb_tc
= n
;
3050 * i40e_set_vsi_rx_mode - Call set_rx_mode on a VSI
3051 * @vsi: ptr to the VSI
3053 static void i40e_set_vsi_rx_mode(struct i40e_vsi
*vsi
)
3056 i40e_set_rx_mode(vsi
->netdev
);
3060 * i40e_fdir_filter_restore - Restore the Sideband Flow Director filters
3061 * @vsi: Pointer to the targeted VSI
3063 * This function replays the hlist on the hw where all the SB Flow Director
3064 * filters were saved.
3066 static void i40e_fdir_filter_restore(struct i40e_vsi
*vsi
)
3068 struct i40e_fdir_filter
*filter
;
3069 struct i40e_pf
*pf
= vsi
->back
;
3070 struct hlist_node
*node
;
3072 if (!(pf
->flags
& I40E_FLAG_FD_SB_ENABLED
))
3075 hlist_for_each_entry_safe(filter
, node
,
3076 &pf
->fdir_filter_list
, fdir_node
) {
3077 i40e_add_del_fdir(vsi
, filter
, true);
3082 * i40e_vsi_configure - Set up the VSI for action
3083 * @vsi: the VSI being configured
3085 static int i40e_vsi_configure(struct i40e_vsi
*vsi
)
3089 i40e_set_vsi_rx_mode(vsi
);
3090 i40e_restore_vlan(vsi
);
3091 i40e_vsi_config_dcb_rings(vsi
);
3092 err
= i40e_vsi_configure_tx(vsi
);
3094 err
= i40e_vsi_configure_rx(vsi
);
3100 * i40e_vsi_configure_msix - MSIX mode Interrupt Config in the HW
3101 * @vsi: the VSI being configured
3103 static void i40e_vsi_configure_msix(struct i40e_vsi
*vsi
)
3105 struct i40e_pf
*pf
= vsi
->back
;
3106 struct i40e_hw
*hw
= &pf
->hw
;
3111 /* The interrupt indexing is offset by 1 in the PFINT_ITRn
3112 * and PFINT_LNKLSTn registers, e.g.:
3113 * PFINT_ITRn[0..n-1] gets msix-1..msix-n (qpair interrupts)
3115 qp
= vsi
->base_queue
;
3116 vector
= vsi
->base_vector
;
3117 for (i
= 0; i
< vsi
->num_q_vectors
; i
++, vector
++) {
3118 struct i40e_q_vector
*q_vector
= vsi
->q_vectors
[i
];
3120 q_vector
->itr_countdown
= ITR_COUNTDOWN_START
;
3121 q_vector
->rx
.itr
= ITR_TO_REG(vsi
->rx_itr_setting
);
3122 q_vector
->rx
.latency_range
= I40E_LOW_LATENCY
;
3123 wr32(hw
, I40E_PFINT_ITRN(I40E_RX_ITR
, vector
- 1),
3125 q_vector
->tx
.itr
= ITR_TO_REG(vsi
->tx_itr_setting
);
3126 q_vector
->tx
.latency_range
= I40E_LOW_LATENCY
;
3127 wr32(hw
, I40E_PFINT_ITRN(I40E_TX_ITR
, vector
- 1),
3129 wr32(hw
, I40E_PFINT_RATEN(vector
- 1),
3130 INTRL_USEC_TO_REG(vsi
->int_rate_limit
));
3132 /* Linked list for the queuepairs assigned to this vector */
3133 wr32(hw
, I40E_PFINT_LNKLSTN(vector
- 1), qp
);
3134 for (q
= 0; q
< q_vector
->num_ringpairs
; q
++) {
3137 val
= I40E_QINT_RQCTL_CAUSE_ENA_MASK
|
3138 (I40E_RX_ITR
<< I40E_QINT_RQCTL_ITR_INDX_SHIFT
) |
3139 (vector
<< I40E_QINT_RQCTL_MSIX_INDX_SHIFT
) |
3140 (qp
<< I40E_QINT_RQCTL_NEXTQ_INDX_SHIFT
)|
3142 << I40E_QINT_RQCTL_NEXTQ_TYPE_SHIFT
);
3144 wr32(hw
, I40E_QINT_RQCTL(qp
), val
);
3146 val
= I40E_QINT_TQCTL_CAUSE_ENA_MASK
|
3147 (I40E_TX_ITR
<< I40E_QINT_TQCTL_ITR_INDX_SHIFT
) |
3148 (vector
<< I40E_QINT_TQCTL_MSIX_INDX_SHIFT
) |
3149 ((qp
+1) << I40E_QINT_TQCTL_NEXTQ_INDX_SHIFT
)|
3151 << I40E_QINT_TQCTL_NEXTQ_TYPE_SHIFT
);
3153 /* Terminate the linked list */
3154 if (q
== (q_vector
->num_ringpairs
- 1))
3155 val
|= (I40E_QUEUE_END_OF_LIST
3156 << I40E_QINT_TQCTL_NEXTQ_INDX_SHIFT
);
3158 wr32(hw
, I40E_QINT_TQCTL(qp
), val
);
3167 * i40e_enable_misc_int_causes - enable the non-queue interrupts
3168 * @hw: ptr to the hardware info
3170 static void i40e_enable_misc_int_causes(struct i40e_pf
*pf
)
3172 struct i40e_hw
*hw
= &pf
->hw
;
3175 /* clear things first */
3176 wr32(hw
, I40E_PFINT_ICR0_ENA
, 0); /* disable all */
3177 rd32(hw
, I40E_PFINT_ICR0
); /* read to clear */
3179 val
= I40E_PFINT_ICR0_ENA_ECC_ERR_MASK
|
3180 I40E_PFINT_ICR0_ENA_MAL_DETECT_MASK
|
3181 I40E_PFINT_ICR0_ENA_GRST_MASK
|
3182 I40E_PFINT_ICR0_ENA_PCI_EXCEPTION_MASK
|
3183 I40E_PFINT_ICR0_ENA_GPIO_MASK
|
3184 I40E_PFINT_ICR0_ENA_HMC_ERR_MASK
|
3185 I40E_PFINT_ICR0_ENA_VFLR_MASK
|
3186 I40E_PFINT_ICR0_ENA_ADMINQ_MASK
;
3188 if (pf
->flags
& I40E_FLAG_IWARP_ENABLED
)
3189 val
|= I40E_PFINT_ICR0_ENA_PE_CRITERR_MASK
;
3191 if (pf
->flags
& I40E_FLAG_PTP
)
3192 val
|= I40E_PFINT_ICR0_ENA_TIMESYNC_MASK
;
3194 wr32(hw
, I40E_PFINT_ICR0_ENA
, val
);
3196 /* SW_ITR_IDX = 0, but don't change INTENA */
3197 wr32(hw
, I40E_PFINT_DYN_CTL0
, I40E_PFINT_DYN_CTL0_SW_ITR_INDX_MASK
|
3198 I40E_PFINT_DYN_CTL0_INTENA_MSK_MASK
);
3200 /* OTHER_ITR_IDX = 0 */
3201 wr32(hw
, I40E_PFINT_STAT_CTL0
, 0);
3205 * i40e_configure_msi_and_legacy - Legacy mode interrupt config in the HW
3206 * @vsi: the VSI being configured
3208 static void i40e_configure_msi_and_legacy(struct i40e_vsi
*vsi
)
3210 struct i40e_q_vector
*q_vector
= vsi
->q_vectors
[0];
3211 struct i40e_pf
*pf
= vsi
->back
;
3212 struct i40e_hw
*hw
= &pf
->hw
;
3215 /* set the ITR configuration */
3216 q_vector
->itr_countdown
= ITR_COUNTDOWN_START
;
3217 q_vector
->rx
.itr
= ITR_TO_REG(vsi
->rx_itr_setting
);
3218 q_vector
->rx
.latency_range
= I40E_LOW_LATENCY
;
3219 wr32(hw
, I40E_PFINT_ITR0(I40E_RX_ITR
), q_vector
->rx
.itr
);
3220 q_vector
->tx
.itr
= ITR_TO_REG(vsi
->tx_itr_setting
);
3221 q_vector
->tx
.latency_range
= I40E_LOW_LATENCY
;
3222 wr32(hw
, I40E_PFINT_ITR0(I40E_TX_ITR
), q_vector
->tx
.itr
);
3224 i40e_enable_misc_int_causes(pf
);
3226 /* FIRSTQ_INDX = 0, FIRSTQ_TYPE = 0 (rx) */
3227 wr32(hw
, I40E_PFINT_LNKLST0
, 0);
3229 /* Associate the queue pair to the vector and enable the queue int */
3230 val
= I40E_QINT_RQCTL_CAUSE_ENA_MASK
|
3231 (I40E_RX_ITR
<< I40E_QINT_RQCTL_ITR_INDX_SHIFT
) |
3232 (I40E_QUEUE_TYPE_TX
<< I40E_QINT_TQCTL_NEXTQ_TYPE_SHIFT
);
3234 wr32(hw
, I40E_QINT_RQCTL(0), val
);
3236 val
= I40E_QINT_TQCTL_CAUSE_ENA_MASK
|
3237 (I40E_TX_ITR
<< I40E_QINT_TQCTL_ITR_INDX_SHIFT
) |
3238 (I40E_QUEUE_END_OF_LIST
<< I40E_QINT_TQCTL_NEXTQ_INDX_SHIFT
);
3240 wr32(hw
, I40E_QINT_TQCTL(0), val
);
3245 * i40e_irq_dynamic_disable_icr0 - Disable default interrupt generation for icr0
3246 * @pf: board private structure
3248 void i40e_irq_dynamic_disable_icr0(struct i40e_pf
*pf
)
3250 struct i40e_hw
*hw
= &pf
->hw
;
3252 wr32(hw
, I40E_PFINT_DYN_CTL0
,
3253 I40E_ITR_NONE
<< I40E_PFINT_DYN_CTLN_ITR_INDX_SHIFT
);
3258 * i40e_irq_dynamic_enable_icr0 - Enable default interrupt generation for icr0
3259 * @pf: board private structure
3261 void i40e_irq_dynamic_enable_icr0(struct i40e_pf
*pf
)
3263 struct i40e_hw
*hw
= &pf
->hw
;
3266 val
= I40E_PFINT_DYN_CTL0_INTENA_MASK
|
3267 I40E_PFINT_DYN_CTL0_CLEARPBA_MASK
|
3268 (I40E_ITR_NONE
<< I40E_PFINT_DYN_CTL0_ITR_INDX_SHIFT
);
3270 wr32(hw
, I40E_PFINT_DYN_CTL0
, val
);
3275 * i40e_msix_clean_rings - MSIX mode Interrupt Handler
3276 * @irq: interrupt number
3277 * @data: pointer to a q_vector
3279 static irqreturn_t
i40e_msix_clean_rings(int irq
, void *data
)
3281 struct i40e_q_vector
*q_vector
= data
;
3283 if (!q_vector
->tx
.ring
&& !q_vector
->rx
.ring
)
3286 napi_schedule_irqoff(&q_vector
->napi
);
3292 * i40e_vsi_request_irq_msix - Initialize MSI-X interrupts
3293 * @vsi: the VSI being configured
3294 * @basename: name for the vector
3296 * Allocates MSI-X vectors and requests interrupts from the kernel.
3298 static int i40e_vsi_request_irq_msix(struct i40e_vsi
*vsi
, char *basename
)
3300 int q_vectors
= vsi
->num_q_vectors
;
3301 struct i40e_pf
*pf
= vsi
->back
;
3302 int base
= vsi
->base_vector
;
3307 for (vector
= 0; vector
< q_vectors
; vector
++) {
3308 struct i40e_q_vector
*q_vector
= vsi
->q_vectors
[vector
];
3310 if (q_vector
->tx
.ring
&& q_vector
->rx
.ring
) {
3311 snprintf(q_vector
->name
, sizeof(q_vector
->name
) - 1,
3312 "%s-%s-%d", basename
, "TxRx", rx_int_idx
++);
3314 } else if (q_vector
->rx
.ring
) {
3315 snprintf(q_vector
->name
, sizeof(q_vector
->name
) - 1,
3316 "%s-%s-%d", basename
, "rx", rx_int_idx
++);
3317 } else if (q_vector
->tx
.ring
) {
3318 snprintf(q_vector
->name
, sizeof(q_vector
->name
) - 1,
3319 "%s-%s-%d", basename
, "tx", tx_int_idx
++);
3321 /* skip this unused q_vector */
3324 err
= request_irq(pf
->msix_entries
[base
+ vector
].vector
,
3330 dev_info(&pf
->pdev
->dev
,
3331 "MSIX request_irq failed, error: %d\n", err
);
3332 goto free_queue_irqs
;
3334 /* assign the mask for this irq */
3335 irq_set_affinity_hint(pf
->msix_entries
[base
+ vector
].vector
,
3336 &q_vector
->affinity_mask
);
3339 vsi
->irqs_ready
= true;
3345 irq_set_affinity_hint(pf
->msix_entries
[base
+ vector
].vector
,
3347 free_irq(pf
->msix_entries
[base
+ vector
].vector
,
3348 &(vsi
->q_vectors
[vector
]));
3354 * i40e_vsi_disable_irq - Mask off queue interrupt generation on the VSI
3355 * @vsi: the VSI being un-configured
3357 static void i40e_vsi_disable_irq(struct i40e_vsi
*vsi
)
3359 struct i40e_pf
*pf
= vsi
->back
;
3360 struct i40e_hw
*hw
= &pf
->hw
;
3361 int base
= vsi
->base_vector
;
3364 for (i
= 0; i
< vsi
->num_queue_pairs
; i
++) {
3365 wr32(hw
, I40E_QINT_TQCTL(vsi
->tx_rings
[i
]->reg_idx
), 0);
3366 wr32(hw
, I40E_QINT_RQCTL(vsi
->rx_rings
[i
]->reg_idx
), 0);
3369 if (pf
->flags
& I40E_FLAG_MSIX_ENABLED
) {
3370 for (i
= vsi
->base_vector
;
3371 i
< (vsi
->num_q_vectors
+ vsi
->base_vector
); i
++)
3372 wr32(hw
, I40E_PFINT_DYN_CTLN(i
- 1), 0);
3375 for (i
= 0; i
< vsi
->num_q_vectors
; i
++)
3376 synchronize_irq(pf
->msix_entries
[i
+ base
].vector
);
3378 /* Legacy and MSI mode - this stops all interrupt handling */
3379 wr32(hw
, I40E_PFINT_ICR0_ENA
, 0);
3380 wr32(hw
, I40E_PFINT_DYN_CTL0
, 0);
3382 synchronize_irq(pf
->pdev
->irq
);
3387 * i40e_vsi_enable_irq - Enable IRQ for the given VSI
3388 * @vsi: the VSI being configured
3390 static int i40e_vsi_enable_irq(struct i40e_vsi
*vsi
)
3392 struct i40e_pf
*pf
= vsi
->back
;
3395 if (pf
->flags
& I40E_FLAG_MSIX_ENABLED
) {
3396 for (i
= 0; i
< vsi
->num_q_vectors
; i
++)
3397 i40e_irq_dynamic_enable(vsi
, i
);
3399 i40e_irq_dynamic_enable_icr0(pf
);
3402 i40e_flush(&pf
->hw
);
3407 * i40e_stop_misc_vector - Stop the vector that handles non-queue events
3408 * @pf: board private structure
3410 static void i40e_stop_misc_vector(struct i40e_pf
*pf
)
3413 wr32(&pf
->hw
, I40E_PFINT_ICR0_ENA
, 0);
3414 i40e_flush(&pf
->hw
);
3418 * i40e_intr - MSI/Legacy and non-queue interrupt handler
3419 * @irq: interrupt number
3420 * @data: pointer to a q_vector
3422 * This is the handler used for all MSI/Legacy interrupts, and deals
3423 * with both queue and non-queue interrupts. This is also used in
3424 * MSIX mode to handle the non-queue interrupts.
3426 static irqreturn_t
i40e_intr(int irq
, void *data
)
3428 struct i40e_pf
*pf
= (struct i40e_pf
*)data
;
3429 struct i40e_hw
*hw
= &pf
->hw
;
3430 irqreturn_t ret
= IRQ_NONE
;
3431 u32 icr0
, icr0_remaining
;
3434 icr0
= rd32(hw
, I40E_PFINT_ICR0
);
3435 ena_mask
= rd32(hw
, I40E_PFINT_ICR0_ENA
);
3437 /* if sharing a legacy IRQ, we might get called w/o an intr pending */
3438 if ((icr0
& I40E_PFINT_ICR0_INTEVENT_MASK
) == 0)
3441 /* if interrupt but no bits showing, must be SWINT */
3442 if (((icr0
& ~I40E_PFINT_ICR0_INTEVENT_MASK
) == 0) ||
3443 (icr0
& I40E_PFINT_ICR0_SWINT_MASK
))
3446 if ((pf
->flags
& I40E_FLAG_IWARP_ENABLED
) &&
3447 (ena_mask
& I40E_PFINT_ICR0_ENA_PE_CRITERR_MASK
)) {
3448 ena_mask
&= ~I40E_PFINT_ICR0_ENA_PE_CRITERR_MASK
;
3449 icr0
&= ~I40E_PFINT_ICR0_ENA_PE_CRITERR_MASK
;
3450 dev_info(&pf
->pdev
->dev
, "cleared PE_CRITERR\n");
3453 /* only q0 is used in MSI/Legacy mode, and none are used in MSIX */
3454 if (icr0
& I40E_PFINT_ICR0_QUEUE_0_MASK
) {
3455 struct i40e_vsi
*vsi
= pf
->vsi
[pf
->lan_vsi
];
3456 struct i40e_q_vector
*q_vector
= vsi
->q_vectors
[0];
3458 /* temporarily disable queue cause for NAPI processing */
3459 u32 qval
= rd32(hw
, I40E_QINT_RQCTL(0));
3461 qval
&= ~I40E_QINT_RQCTL_CAUSE_ENA_MASK
;
3462 wr32(hw
, I40E_QINT_RQCTL(0), qval
);
3464 qval
= rd32(hw
, I40E_QINT_TQCTL(0));
3465 qval
&= ~I40E_QINT_TQCTL_CAUSE_ENA_MASK
;
3466 wr32(hw
, I40E_QINT_TQCTL(0), qval
);
3468 if (!test_bit(__I40E_DOWN
, &pf
->state
))
3469 napi_schedule_irqoff(&q_vector
->napi
);
3472 if (icr0
& I40E_PFINT_ICR0_ADMINQ_MASK
) {
3473 ena_mask
&= ~I40E_PFINT_ICR0_ENA_ADMINQ_MASK
;
3474 set_bit(__I40E_ADMINQ_EVENT_PENDING
, &pf
->state
);
3477 if (icr0
& I40E_PFINT_ICR0_MAL_DETECT_MASK
) {
3478 ena_mask
&= ~I40E_PFINT_ICR0_ENA_MAL_DETECT_MASK
;
3479 set_bit(__I40E_MDD_EVENT_PENDING
, &pf
->state
);
3482 if (icr0
& I40E_PFINT_ICR0_VFLR_MASK
) {
3483 ena_mask
&= ~I40E_PFINT_ICR0_ENA_VFLR_MASK
;
3484 set_bit(__I40E_VFLR_EVENT_PENDING
, &pf
->state
);
3487 if (icr0
& I40E_PFINT_ICR0_GRST_MASK
) {
3488 if (!test_bit(__I40E_RESET_RECOVERY_PENDING
, &pf
->state
))
3489 set_bit(__I40E_RESET_INTR_RECEIVED
, &pf
->state
);
3490 ena_mask
&= ~I40E_PFINT_ICR0_ENA_GRST_MASK
;
3491 val
= rd32(hw
, I40E_GLGEN_RSTAT
);
3492 val
= (val
& I40E_GLGEN_RSTAT_RESET_TYPE_MASK
)
3493 >> I40E_GLGEN_RSTAT_RESET_TYPE_SHIFT
;
3494 if (val
== I40E_RESET_CORER
) {
3496 } else if (val
== I40E_RESET_GLOBR
) {
3498 } else if (val
== I40E_RESET_EMPR
) {
3500 set_bit(__I40E_EMP_RESET_INTR_RECEIVED
, &pf
->state
);
3504 if (icr0
& I40E_PFINT_ICR0_HMC_ERR_MASK
) {
3505 icr0
&= ~I40E_PFINT_ICR0_HMC_ERR_MASK
;
3506 dev_info(&pf
->pdev
->dev
, "HMC error interrupt\n");
3507 dev_info(&pf
->pdev
->dev
, "HMC error info 0x%x, HMC error data 0x%x\n",
3508 rd32(hw
, I40E_PFHMC_ERRORINFO
),
3509 rd32(hw
, I40E_PFHMC_ERRORDATA
));
3512 if (icr0
& I40E_PFINT_ICR0_TIMESYNC_MASK
) {
3513 u32 prttsyn_stat
= rd32(hw
, I40E_PRTTSYN_STAT_0
);
3515 if (prttsyn_stat
& I40E_PRTTSYN_STAT_0_TXTIME_MASK
) {
3516 icr0
&= ~I40E_PFINT_ICR0_ENA_TIMESYNC_MASK
;
3517 i40e_ptp_tx_hwtstamp(pf
);
3521 /* If a critical error is pending we have no choice but to reset the
3523 * Report and mask out any remaining unexpected interrupts.
3525 icr0_remaining
= icr0
& ena_mask
;
3526 if (icr0_remaining
) {
3527 dev_info(&pf
->pdev
->dev
, "unhandled interrupt icr0=0x%08x\n",
3529 if ((icr0_remaining
& I40E_PFINT_ICR0_PE_CRITERR_MASK
) ||
3530 (icr0_remaining
& I40E_PFINT_ICR0_PCI_EXCEPTION_MASK
) ||
3531 (icr0_remaining
& I40E_PFINT_ICR0_ECC_ERR_MASK
)) {
3532 dev_info(&pf
->pdev
->dev
, "device will be reset\n");
3533 set_bit(__I40E_PF_RESET_REQUESTED
, &pf
->state
);
3534 i40e_service_event_schedule(pf
);
3536 ena_mask
&= ~icr0_remaining
;
3541 /* re-enable interrupt causes */
3542 wr32(hw
, I40E_PFINT_ICR0_ENA
, ena_mask
);
3543 if (!test_bit(__I40E_DOWN
, &pf
->state
)) {
3544 i40e_service_event_schedule(pf
);
3545 i40e_irq_dynamic_enable_icr0(pf
);
3552 * i40e_clean_fdir_tx_irq - Reclaim resources after transmit completes
3553 * @tx_ring: tx ring to clean
3554 * @budget: how many cleans we're allowed
3556 * Returns true if there's any budget left (e.g. the clean is finished)
3558 static bool i40e_clean_fdir_tx_irq(struct i40e_ring
*tx_ring
, int budget
)
3560 struct i40e_vsi
*vsi
= tx_ring
->vsi
;
3561 u16 i
= tx_ring
->next_to_clean
;
3562 struct i40e_tx_buffer
*tx_buf
;
3563 struct i40e_tx_desc
*tx_desc
;
3565 tx_buf
= &tx_ring
->tx_bi
[i
];
3566 tx_desc
= I40E_TX_DESC(tx_ring
, i
);
3567 i
-= tx_ring
->count
;
3570 struct i40e_tx_desc
*eop_desc
= tx_buf
->next_to_watch
;
3572 /* if next_to_watch is not set then there is no work pending */
3576 /* prevent any other reads prior to eop_desc */
3577 read_barrier_depends();
3579 /* if the descriptor isn't done, no work yet to do */
3580 if (!(eop_desc
->cmd_type_offset_bsz
&
3581 cpu_to_le64(I40E_TX_DESC_DTYPE_DESC_DONE
)))
3584 /* clear next_to_watch to prevent false hangs */
3585 tx_buf
->next_to_watch
= NULL
;
3587 tx_desc
->buffer_addr
= 0;
3588 tx_desc
->cmd_type_offset_bsz
= 0;
3589 /* move past filter desc */
3594 i
-= tx_ring
->count
;
3595 tx_buf
= tx_ring
->tx_bi
;
3596 tx_desc
= I40E_TX_DESC(tx_ring
, 0);
3598 /* unmap skb header data */
3599 dma_unmap_single(tx_ring
->dev
,
3600 dma_unmap_addr(tx_buf
, dma
),
3601 dma_unmap_len(tx_buf
, len
),
3603 if (tx_buf
->tx_flags
& I40E_TX_FLAGS_FD_SB
)
3604 kfree(tx_buf
->raw_buf
);
3606 tx_buf
->raw_buf
= NULL
;
3607 tx_buf
->tx_flags
= 0;
3608 tx_buf
->next_to_watch
= NULL
;
3609 dma_unmap_len_set(tx_buf
, len
, 0);
3610 tx_desc
->buffer_addr
= 0;
3611 tx_desc
->cmd_type_offset_bsz
= 0;
3613 /* move us past the eop_desc for start of next FD desc */
3618 i
-= tx_ring
->count
;
3619 tx_buf
= tx_ring
->tx_bi
;
3620 tx_desc
= I40E_TX_DESC(tx_ring
, 0);
3623 /* update budget accounting */
3625 } while (likely(budget
));
3627 i
+= tx_ring
->count
;
3628 tx_ring
->next_to_clean
= i
;
3630 if (vsi
->back
->flags
& I40E_FLAG_MSIX_ENABLED
)
3631 i40e_irq_dynamic_enable(vsi
, tx_ring
->q_vector
->v_idx
);
3637 * i40e_fdir_clean_ring - Interrupt Handler for FDIR SB ring
3638 * @irq: interrupt number
3639 * @data: pointer to a q_vector
3641 static irqreturn_t
i40e_fdir_clean_ring(int irq
, void *data
)
3643 struct i40e_q_vector
*q_vector
= data
;
3644 struct i40e_vsi
*vsi
;
3646 if (!q_vector
->tx
.ring
)
3649 vsi
= q_vector
->tx
.ring
->vsi
;
3650 i40e_clean_fdir_tx_irq(q_vector
->tx
.ring
, vsi
->work_limit
);
3656 * i40e_map_vector_to_qp - Assigns the queue pair to the vector
3657 * @vsi: the VSI being configured
3658 * @v_idx: vector index
3659 * @qp_idx: queue pair index
3661 static void i40e_map_vector_to_qp(struct i40e_vsi
*vsi
, int v_idx
, int qp_idx
)
3663 struct i40e_q_vector
*q_vector
= vsi
->q_vectors
[v_idx
];
3664 struct i40e_ring
*tx_ring
= vsi
->tx_rings
[qp_idx
];
3665 struct i40e_ring
*rx_ring
= vsi
->rx_rings
[qp_idx
];
3667 tx_ring
->q_vector
= q_vector
;
3668 tx_ring
->next
= q_vector
->tx
.ring
;
3669 q_vector
->tx
.ring
= tx_ring
;
3670 q_vector
->tx
.count
++;
3672 rx_ring
->q_vector
= q_vector
;
3673 rx_ring
->next
= q_vector
->rx
.ring
;
3674 q_vector
->rx
.ring
= rx_ring
;
3675 q_vector
->rx
.count
++;
3679 * i40e_vsi_map_rings_to_vectors - Maps descriptor rings to vectors
3680 * @vsi: the VSI being configured
3682 * This function maps descriptor rings to the queue-specific vectors
3683 * we were allotted through the MSI-X enabling code. Ideally, we'd have
3684 * one vector per queue pair, but on a constrained vector budget, we
3685 * group the queue pairs as "efficiently" as possible.
3687 static void i40e_vsi_map_rings_to_vectors(struct i40e_vsi
*vsi
)
3689 int qp_remaining
= vsi
->num_queue_pairs
;
3690 int q_vectors
= vsi
->num_q_vectors
;
3695 /* If we don't have enough vectors for a 1-to-1 mapping, we'll have to
3696 * group them so there are multiple queues per vector.
3697 * It is also important to go through all the vectors available to be
3698 * sure that if we don't use all the vectors, that the remaining vectors
3699 * are cleared. This is especially important when decreasing the
3700 * number of queues in use.
3702 for (; v_start
< q_vectors
; v_start
++) {
3703 struct i40e_q_vector
*q_vector
= vsi
->q_vectors
[v_start
];
3705 num_ringpairs
= DIV_ROUND_UP(qp_remaining
, q_vectors
- v_start
);
3707 q_vector
->num_ringpairs
= num_ringpairs
;
3709 q_vector
->rx
.count
= 0;
3710 q_vector
->tx
.count
= 0;
3711 q_vector
->rx
.ring
= NULL
;
3712 q_vector
->tx
.ring
= NULL
;
3714 while (num_ringpairs
--) {
3715 i40e_map_vector_to_qp(vsi
, v_start
, qp_idx
);
3723 * i40e_vsi_request_irq - Request IRQ from the OS
3724 * @vsi: the VSI being configured
3725 * @basename: name for the vector
3727 static int i40e_vsi_request_irq(struct i40e_vsi
*vsi
, char *basename
)
3729 struct i40e_pf
*pf
= vsi
->back
;
3732 if (pf
->flags
& I40E_FLAG_MSIX_ENABLED
)
3733 err
= i40e_vsi_request_irq_msix(vsi
, basename
);
3734 else if (pf
->flags
& I40E_FLAG_MSI_ENABLED
)
3735 err
= request_irq(pf
->pdev
->irq
, i40e_intr
, 0,
3738 err
= request_irq(pf
->pdev
->irq
, i40e_intr
, IRQF_SHARED
,
3742 dev_info(&pf
->pdev
->dev
, "request_irq failed, Error %d\n", err
);
3747 #ifdef CONFIG_NET_POLL_CONTROLLER
3749 * i40e_netpoll - A Polling 'interrupt' handler
3750 * @netdev: network interface device structure
3752 * This is used by netconsole to send skbs without having to re-enable
3753 * interrupts. It's not called while the normal interrupt routine is executing.
3756 void i40e_netpoll(struct net_device
*netdev
)
3758 static void i40e_netpoll(struct net_device
*netdev
)
3761 struct i40e_netdev_priv
*np
= netdev_priv(netdev
);
3762 struct i40e_vsi
*vsi
= np
->vsi
;
3763 struct i40e_pf
*pf
= vsi
->back
;
3766 /* if interface is down do nothing */
3767 if (test_bit(__I40E_DOWN
, &vsi
->state
))
3770 if (pf
->flags
& I40E_FLAG_MSIX_ENABLED
) {
3771 for (i
= 0; i
< vsi
->num_q_vectors
; i
++)
3772 i40e_msix_clean_rings(0, vsi
->q_vectors
[i
]);
3774 i40e_intr(pf
->pdev
->irq
, netdev
);
3780 * i40e_pf_txq_wait - Wait for a PF's Tx queue to be enabled or disabled
3781 * @pf: the PF being configured
3782 * @pf_q: the PF queue
3783 * @enable: enable or disable state of the queue
3785 * This routine will wait for the given Tx queue of the PF to reach the
3786 * enabled or disabled state.
3787 * Returns -ETIMEDOUT in case of failing to reach the requested state after
3788 * multiple retries; else will return 0 in case of success.
3790 static int i40e_pf_txq_wait(struct i40e_pf
*pf
, int pf_q
, bool enable
)
3795 for (i
= 0; i
< I40E_QUEUE_WAIT_RETRY_LIMIT
; i
++) {
3796 tx_reg
= rd32(&pf
->hw
, I40E_QTX_ENA(pf_q
));
3797 if (enable
== !!(tx_reg
& I40E_QTX_ENA_QENA_STAT_MASK
))
3800 usleep_range(10, 20);
3802 if (i
>= I40E_QUEUE_WAIT_RETRY_LIMIT
)
3809 * i40e_vsi_control_tx - Start or stop a VSI's rings
3810 * @vsi: the VSI being configured
3811 * @enable: start or stop the rings
3813 static int i40e_vsi_control_tx(struct i40e_vsi
*vsi
, bool enable
)
3815 struct i40e_pf
*pf
= vsi
->back
;
3816 struct i40e_hw
*hw
= &pf
->hw
;
3817 int i
, j
, pf_q
, ret
= 0;
3820 pf_q
= vsi
->base_queue
;
3821 for (i
= 0; i
< vsi
->num_queue_pairs
; i
++, pf_q
++) {
3823 /* warn the TX unit of coming changes */
3824 i40e_pre_tx_queue_cfg(&pf
->hw
, pf_q
, enable
);
3826 usleep_range(10, 20);
3828 for (j
= 0; j
< 50; j
++) {
3829 tx_reg
= rd32(hw
, I40E_QTX_ENA(pf_q
));
3830 if (((tx_reg
>> I40E_QTX_ENA_QENA_REQ_SHIFT
) & 1) ==
3831 ((tx_reg
>> I40E_QTX_ENA_QENA_STAT_SHIFT
) & 1))
3833 usleep_range(1000, 2000);
3835 /* Skip if the queue is already in the requested state */
3836 if (enable
== !!(tx_reg
& I40E_QTX_ENA_QENA_STAT_MASK
))
3839 /* turn on/off the queue */
3841 wr32(hw
, I40E_QTX_HEAD(pf_q
), 0);
3842 tx_reg
|= I40E_QTX_ENA_QENA_REQ_MASK
;
3844 tx_reg
&= ~I40E_QTX_ENA_QENA_REQ_MASK
;
3847 wr32(hw
, I40E_QTX_ENA(pf_q
), tx_reg
);
3848 /* No waiting for the Tx queue to disable */
3849 if (!enable
&& test_bit(__I40E_PORT_TX_SUSPENDED
, &pf
->state
))
3852 /* wait for the change to finish */
3853 ret
= i40e_pf_txq_wait(pf
, pf_q
, enable
);
3855 dev_info(&pf
->pdev
->dev
,
3856 "VSI seid %d Tx ring %d %sable timeout\n",
3857 vsi
->seid
, pf_q
, (enable
? "en" : "dis"));
3862 if (hw
->revision_id
== 0)
3868 * i40e_pf_rxq_wait - Wait for a PF's Rx queue to be enabled or disabled
3869 * @pf: the PF being configured
3870 * @pf_q: the PF queue
3871 * @enable: enable or disable state of the queue
3873 * This routine will wait for the given Rx queue of the PF to reach the
3874 * enabled or disabled state.
3875 * Returns -ETIMEDOUT in case of failing to reach the requested state after
3876 * multiple retries; else will return 0 in case of success.
3878 static int i40e_pf_rxq_wait(struct i40e_pf
*pf
, int pf_q
, bool enable
)
3883 for (i
= 0; i
< I40E_QUEUE_WAIT_RETRY_LIMIT
; i
++) {
3884 rx_reg
= rd32(&pf
->hw
, I40E_QRX_ENA(pf_q
));
3885 if (enable
== !!(rx_reg
& I40E_QRX_ENA_QENA_STAT_MASK
))
3888 usleep_range(10, 20);
3890 if (i
>= I40E_QUEUE_WAIT_RETRY_LIMIT
)
3897 * i40e_vsi_control_rx - Start or stop a VSI's rings
3898 * @vsi: the VSI being configured
3899 * @enable: start or stop the rings
3901 static int i40e_vsi_control_rx(struct i40e_vsi
*vsi
, bool enable
)
3903 struct i40e_pf
*pf
= vsi
->back
;
3904 struct i40e_hw
*hw
= &pf
->hw
;
3905 int i
, j
, pf_q
, ret
= 0;
3908 pf_q
= vsi
->base_queue
;
3909 for (i
= 0; i
< vsi
->num_queue_pairs
; i
++, pf_q
++) {
3910 for (j
= 0; j
< 50; j
++) {
3911 rx_reg
= rd32(hw
, I40E_QRX_ENA(pf_q
));
3912 if (((rx_reg
>> I40E_QRX_ENA_QENA_REQ_SHIFT
) & 1) ==
3913 ((rx_reg
>> I40E_QRX_ENA_QENA_STAT_SHIFT
) & 1))
3915 usleep_range(1000, 2000);
3918 /* Skip if the queue is already in the requested state */
3919 if (enable
== !!(rx_reg
& I40E_QRX_ENA_QENA_STAT_MASK
))
3922 /* turn on/off the queue */
3924 rx_reg
|= I40E_QRX_ENA_QENA_REQ_MASK
;
3926 rx_reg
&= ~I40E_QRX_ENA_QENA_REQ_MASK
;
3927 wr32(hw
, I40E_QRX_ENA(pf_q
), rx_reg
);
3929 /* wait for the change to finish */
3930 ret
= i40e_pf_rxq_wait(pf
, pf_q
, enable
);
3932 dev_info(&pf
->pdev
->dev
,
3933 "VSI seid %d Rx ring %d %sable timeout\n",
3934 vsi
->seid
, pf_q
, (enable
? "en" : "dis"));
3943 * i40e_vsi_control_rings - Start or stop a VSI's rings
3944 * @vsi: the VSI being configured
3945 * @enable: start or stop the rings
3947 int i40e_vsi_control_rings(struct i40e_vsi
*vsi
, bool request
)
3951 /* do rx first for enable and last for disable */
3953 ret
= i40e_vsi_control_rx(vsi
, request
);
3956 ret
= i40e_vsi_control_tx(vsi
, request
);
3958 /* Ignore return value, we need to shutdown whatever we can */
3959 i40e_vsi_control_tx(vsi
, request
);
3960 i40e_vsi_control_rx(vsi
, request
);
3967 * i40e_vsi_free_irq - Free the irq association with the OS
3968 * @vsi: the VSI being configured
3970 static void i40e_vsi_free_irq(struct i40e_vsi
*vsi
)
3972 struct i40e_pf
*pf
= vsi
->back
;
3973 struct i40e_hw
*hw
= &pf
->hw
;
3974 int base
= vsi
->base_vector
;
3978 if (pf
->flags
& I40E_FLAG_MSIX_ENABLED
) {
3979 if (!vsi
->q_vectors
)
3982 if (!vsi
->irqs_ready
)
3985 vsi
->irqs_ready
= false;
3986 for (i
= 0; i
< vsi
->num_q_vectors
; i
++) {
3987 u16 vector
= i
+ base
;
3989 /* free only the irqs that were actually requested */
3990 if (!vsi
->q_vectors
[i
] ||
3991 !vsi
->q_vectors
[i
]->num_ringpairs
)
3994 /* clear the affinity_mask in the IRQ descriptor */
3995 irq_set_affinity_hint(pf
->msix_entries
[vector
].vector
,
3997 free_irq(pf
->msix_entries
[vector
].vector
,
4000 /* Tear down the interrupt queue link list
4002 * We know that they come in pairs and always
4003 * the Rx first, then the Tx. To clear the
4004 * link list, stick the EOL value into the
4005 * next_q field of the registers.
4007 val
= rd32(hw
, I40E_PFINT_LNKLSTN(vector
- 1));
4008 qp
= (val
& I40E_PFINT_LNKLSTN_FIRSTQ_INDX_MASK
)
4009 >> I40E_PFINT_LNKLSTN_FIRSTQ_INDX_SHIFT
;
4010 val
|= I40E_QUEUE_END_OF_LIST
4011 << I40E_PFINT_LNKLSTN_FIRSTQ_INDX_SHIFT
;
4012 wr32(hw
, I40E_PFINT_LNKLSTN(vector
- 1), val
);
4014 while (qp
!= I40E_QUEUE_END_OF_LIST
) {
4017 val
= rd32(hw
, I40E_QINT_RQCTL(qp
));
4019 val
&= ~(I40E_QINT_RQCTL_MSIX_INDX_MASK
|
4020 I40E_QINT_RQCTL_MSIX0_INDX_MASK
|
4021 I40E_QINT_RQCTL_CAUSE_ENA_MASK
|
4022 I40E_QINT_RQCTL_INTEVENT_MASK
);
4024 val
|= (I40E_QINT_RQCTL_ITR_INDX_MASK
|
4025 I40E_QINT_RQCTL_NEXTQ_INDX_MASK
);
4027 wr32(hw
, I40E_QINT_RQCTL(qp
), val
);
4029 val
= rd32(hw
, I40E_QINT_TQCTL(qp
));
4031 next
= (val
& I40E_QINT_TQCTL_NEXTQ_INDX_MASK
)
4032 >> I40E_QINT_TQCTL_NEXTQ_INDX_SHIFT
;
4034 val
&= ~(I40E_QINT_TQCTL_MSIX_INDX_MASK
|
4035 I40E_QINT_TQCTL_MSIX0_INDX_MASK
|
4036 I40E_QINT_TQCTL_CAUSE_ENA_MASK
|
4037 I40E_QINT_TQCTL_INTEVENT_MASK
);
4039 val
|= (I40E_QINT_TQCTL_ITR_INDX_MASK
|
4040 I40E_QINT_TQCTL_NEXTQ_INDX_MASK
);
4042 wr32(hw
, I40E_QINT_TQCTL(qp
), val
);
4047 free_irq(pf
->pdev
->irq
, pf
);
4049 val
= rd32(hw
, I40E_PFINT_LNKLST0
);
4050 qp
= (val
& I40E_PFINT_LNKLSTN_FIRSTQ_INDX_MASK
)
4051 >> I40E_PFINT_LNKLSTN_FIRSTQ_INDX_SHIFT
;
4052 val
|= I40E_QUEUE_END_OF_LIST
4053 << I40E_PFINT_LNKLST0_FIRSTQ_INDX_SHIFT
;
4054 wr32(hw
, I40E_PFINT_LNKLST0
, val
);
4056 val
= rd32(hw
, I40E_QINT_RQCTL(qp
));
4057 val
&= ~(I40E_QINT_RQCTL_MSIX_INDX_MASK
|
4058 I40E_QINT_RQCTL_MSIX0_INDX_MASK
|
4059 I40E_QINT_RQCTL_CAUSE_ENA_MASK
|
4060 I40E_QINT_RQCTL_INTEVENT_MASK
);
4062 val
|= (I40E_QINT_RQCTL_ITR_INDX_MASK
|
4063 I40E_QINT_RQCTL_NEXTQ_INDX_MASK
);
4065 wr32(hw
, I40E_QINT_RQCTL(qp
), val
);
4067 val
= rd32(hw
, I40E_QINT_TQCTL(qp
));
4069 val
&= ~(I40E_QINT_TQCTL_MSIX_INDX_MASK
|
4070 I40E_QINT_TQCTL_MSIX0_INDX_MASK
|
4071 I40E_QINT_TQCTL_CAUSE_ENA_MASK
|
4072 I40E_QINT_TQCTL_INTEVENT_MASK
);
4074 val
|= (I40E_QINT_TQCTL_ITR_INDX_MASK
|
4075 I40E_QINT_TQCTL_NEXTQ_INDX_MASK
);
4077 wr32(hw
, I40E_QINT_TQCTL(qp
), val
);
4082 * i40e_free_q_vector - Free memory allocated for specific interrupt vector
4083 * @vsi: the VSI being configured
4084 * @v_idx: Index of vector to be freed
4086 * This function frees the memory allocated to the q_vector. In addition if
4087 * NAPI is enabled it will delete any references to the NAPI struct prior
4088 * to freeing the q_vector.
4090 static void i40e_free_q_vector(struct i40e_vsi
*vsi
, int v_idx
)
4092 struct i40e_q_vector
*q_vector
= vsi
->q_vectors
[v_idx
];
4093 struct i40e_ring
*ring
;
4098 /* disassociate q_vector from rings */
4099 i40e_for_each_ring(ring
, q_vector
->tx
)
4100 ring
->q_vector
= NULL
;
4102 i40e_for_each_ring(ring
, q_vector
->rx
)
4103 ring
->q_vector
= NULL
;
4105 /* only VSI w/ an associated netdev is set up w/ NAPI */
4107 netif_napi_del(&q_vector
->napi
);
4109 vsi
->q_vectors
[v_idx
] = NULL
;
4111 kfree_rcu(q_vector
, rcu
);
4115 * i40e_vsi_free_q_vectors - Free memory allocated for interrupt vectors
4116 * @vsi: the VSI being un-configured
4118 * This frees the memory allocated to the q_vectors and
4119 * deletes references to the NAPI struct.
4121 static void i40e_vsi_free_q_vectors(struct i40e_vsi
*vsi
)
4125 for (v_idx
= 0; v_idx
< vsi
->num_q_vectors
; v_idx
++)
4126 i40e_free_q_vector(vsi
, v_idx
);
4130 * i40e_reset_interrupt_capability - Disable interrupt setup in OS
4131 * @pf: board private structure
4133 static void i40e_reset_interrupt_capability(struct i40e_pf
*pf
)
4135 /* If we're in Legacy mode, the interrupt was cleaned in vsi_close */
4136 if (pf
->flags
& I40E_FLAG_MSIX_ENABLED
) {
4137 pci_disable_msix(pf
->pdev
);
4138 kfree(pf
->msix_entries
);
4139 pf
->msix_entries
= NULL
;
4140 kfree(pf
->irq_pile
);
4141 pf
->irq_pile
= NULL
;
4142 } else if (pf
->flags
& I40E_FLAG_MSI_ENABLED
) {
4143 pci_disable_msi(pf
->pdev
);
4145 pf
->flags
&= ~(I40E_FLAG_MSIX_ENABLED
| I40E_FLAG_MSI_ENABLED
);
4149 * i40e_clear_interrupt_scheme - Clear the current interrupt scheme settings
4150 * @pf: board private structure
4152 * We go through and clear interrupt specific resources and reset the structure
4153 * to pre-load conditions
4155 static void i40e_clear_interrupt_scheme(struct i40e_pf
*pf
)
4159 i40e_stop_misc_vector(pf
);
4160 if (pf
->flags
& I40E_FLAG_MSIX_ENABLED
) {
4161 synchronize_irq(pf
->msix_entries
[0].vector
);
4162 free_irq(pf
->msix_entries
[0].vector
, pf
);
4165 i40e_put_lump(pf
->irq_pile
, 0, I40E_PILE_VALID_BIT
-1);
4166 for (i
= 0; i
< pf
->num_alloc_vsi
; i
++)
4168 i40e_vsi_free_q_vectors(pf
->vsi
[i
]);
4169 i40e_reset_interrupt_capability(pf
);
4173 * i40e_napi_enable_all - Enable NAPI for all q_vectors in the VSI
4174 * @vsi: the VSI being configured
4176 static void i40e_napi_enable_all(struct i40e_vsi
*vsi
)
4183 for (q_idx
= 0; q_idx
< vsi
->num_q_vectors
; q_idx
++)
4184 napi_enable(&vsi
->q_vectors
[q_idx
]->napi
);
4188 * i40e_napi_disable_all - Disable NAPI for all q_vectors in the VSI
4189 * @vsi: the VSI being configured
4191 static void i40e_napi_disable_all(struct i40e_vsi
*vsi
)
4198 for (q_idx
= 0; q_idx
< vsi
->num_q_vectors
; q_idx
++)
4199 napi_disable(&vsi
->q_vectors
[q_idx
]->napi
);
4203 * i40e_vsi_close - Shut down a VSI
4204 * @vsi: the vsi to be quelled
4206 static void i40e_vsi_close(struct i40e_vsi
*vsi
)
4208 if (!test_and_set_bit(__I40E_DOWN
, &vsi
->state
))
4210 i40e_vsi_free_irq(vsi
);
4211 i40e_vsi_free_tx_resources(vsi
);
4212 i40e_vsi_free_rx_resources(vsi
);
4213 vsi
->current_netdev_flags
= 0;
4217 * i40e_quiesce_vsi - Pause a given VSI
4218 * @vsi: the VSI being paused
4220 static void i40e_quiesce_vsi(struct i40e_vsi
*vsi
)
4222 if (test_bit(__I40E_DOWN
, &vsi
->state
))
4225 /* No need to disable FCoE VSI when Tx suspended */
4226 if ((test_bit(__I40E_PORT_TX_SUSPENDED
, &vsi
->back
->state
)) &&
4227 vsi
->type
== I40E_VSI_FCOE
) {
4228 dev_dbg(&vsi
->back
->pdev
->dev
,
4229 "VSI seid %d skipping FCoE VSI disable\n", vsi
->seid
);
4233 set_bit(__I40E_NEEDS_RESTART
, &vsi
->state
);
4234 if (vsi
->netdev
&& netif_running(vsi
->netdev
))
4235 vsi
->netdev
->netdev_ops
->ndo_stop(vsi
->netdev
);
4237 i40e_vsi_close(vsi
);
4241 * i40e_unquiesce_vsi - Resume a given VSI
4242 * @vsi: the VSI being resumed
4244 static void i40e_unquiesce_vsi(struct i40e_vsi
*vsi
)
4246 if (!test_bit(__I40E_NEEDS_RESTART
, &vsi
->state
))
4249 clear_bit(__I40E_NEEDS_RESTART
, &vsi
->state
);
4250 if (vsi
->netdev
&& netif_running(vsi
->netdev
))
4251 vsi
->netdev
->netdev_ops
->ndo_open(vsi
->netdev
);
4253 i40e_vsi_open(vsi
); /* this clears the DOWN bit */
4257 * i40e_pf_quiesce_all_vsi - Pause all VSIs on a PF
4260 static void i40e_pf_quiesce_all_vsi(struct i40e_pf
*pf
)
4264 for (v
= 0; v
< pf
->num_alloc_vsi
; v
++) {
4266 i40e_quiesce_vsi(pf
->vsi
[v
]);
4271 * i40e_pf_unquiesce_all_vsi - Resume all VSIs on a PF
4274 static void i40e_pf_unquiesce_all_vsi(struct i40e_pf
*pf
)
4278 for (v
= 0; v
< pf
->num_alloc_vsi
; v
++) {
4280 i40e_unquiesce_vsi(pf
->vsi
[v
]);
4284 #ifdef CONFIG_I40E_DCB
4286 * i40e_vsi_wait_txq_disabled - Wait for VSI's queues to be disabled
4287 * @vsi: the VSI being configured
4289 * This function waits for the given VSI's Tx queues to be disabled.
4291 static int i40e_vsi_wait_txq_disabled(struct i40e_vsi
*vsi
)
4293 struct i40e_pf
*pf
= vsi
->back
;
4296 pf_q
= vsi
->base_queue
;
4297 for (i
= 0; i
< vsi
->num_queue_pairs
; i
++, pf_q
++) {
4298 /* Check and wait for the disable status of the queue */
4299 ret
= i40e_pf_txq_wait(pf
, pf_q
, false);
4301 dev_info(&pf
->pdev
->dev
,
4302 "VSI seid %d Tx ring %d disable timeout\n",
4312 * i40e_pf_wait_txq_disabled - Wait for all queues of PF VSIs to be disabled
4315 * This function waits for the Tx queues to be in disabled state for all the
4316 * VSIs that are managed by this PF.
4318 static int i40e_pf_wait_txq_disabled(struct i40e_pf
*pf
)
4322 for (v
= 0; v
< pf
->hw
.func_caps
.num_vsis
; v
++) {
4323 /* No need to wait for FCoE VSI queues */
4324 if (pf
->vsi
[v
] && pf
->vsi
[v
]->type
!= I40E_VSI_FCOE
) {
4325 ret
= i40e_vsi_wait_txq_disabled(pf
->vsi
[v
]);
4337 * i40e_detect_recover_hung_queue - Function to detect and recover hung_queue
4338 * @q_idx: TX queue number
4339 * @vsi: Pointer to VSI struct
4341 * This function checks specified queue for given VSI. Detects hung condition.
4342 * Sets hung bit since it is two step process. Before next run of service task
4343 * if napi_poll runs, it reset 'hung' bit for respective q_vector. If not,
4344 * hung condition remain unchanged and during subsequent run, this function
4345 * issues SW interrupt to recover from hung condition.
4347 static void i40e_detect_recover_hung_queue(int q_idx
, struct i40e_vsi
*vsi
)
4349 struct i40e_ring
*tx_ring
= NULL
;
4351 u32 head
, val
, tx_pending
;
4356 /* now that we have an index, find the tx_ring struct */
4357 for (i
= 0; i
< vsi
->num_queue_pairs
; i
++) {
4358 if (vsi
->tx_rings
[i
] && vsi
->tx_rings
[i
]->desc
) {
4359 if (q_idx
== vsi
->tx_rings
[i
]->queue_index
) {
4360 tx_ring
= vsi
->tx_rings
[i
];
4369 /* Read interrupt register */
4370 if (pf
->flags
& I40E_FLAG_MSIX_ENABLED
)
4372 I40E_PFINT_DYN_CTLN(tx_ring
->q_vector
->v_idx
+
4373 tx_ring
->vsi
->base_vector
- 1));
4375 val
= rd32(&pf
->hw
, I40E_PFINT_DYN_CTL0
);
4377 /* Bail out if interrupts are disabled because napi_poll
4378 * execution in-progress or will get scheduled soon.
4379 * napi_poll cleans TX and RX queues and updates 'next_to_clean'.
4381 if (!(val
& I40E_PFINT_DYN_CTLN_INTENA_MASK
))
4384 head
= i40e_get_head(tx_ring
);
4386 tx_pending
= i40e_get_tx_pending(tx_ring
);
4388 /* HW is done executing descriptors, updated HEAD write back,
4389 * but SW hasn't processed those descriptors. If interrupt is
4390 * not generated from this point ON, it could result into
4391 * dev_watchdog detecting timeout on those netdev_queue,
4392 * hence proactively trigger SW interrupt.
4395 /* NAPI Poll didn't run and clear since it was set */
4396 if (test_and_clear_bit(I40E_Q_VECTOR_HUNG_DETECT
,
4397 &tx_ring
->q_vector
->hung_detected
)) {
4398 netdev_info(vsi
->netdev
, "VSI_seid %d, Hung TX queue %d, tx_pending: %d, NTC:0x%x, HWB: 0x%x, NTU: 0x%x, TAIL: 0x%x\n",
4399 vsi
->seid
, q_idx
, tx_pending
,
4400 tx_ring
->next_to_clean
, head
,
4401 tx_ring
->next_to_use
,
4402 readl(tx_ring
->tail
));
4403 netdev_info(vsi
->netdev
, "VSI_seid %d, Issuing force_wb for TX queue %d, Interrupt Reg: 0x%x\n",
4404 vsi
->seid
, q_idx
, val
);
4405 i40e_force_wb(vsi
, tx_ring
->q_vector
);
4407 /* First Chance - detected possible hung */
4408 set_bit(I40E_Q_VECTOR_HUNG_DETECT
,
4409 &tx_ring
->q_vector
->hung_detected
);
4415 * i40e_detect_recover_hung - Function to detect and recover hung_queues
4416 * @pf: pointer to PF struct
4418 * LAN VSI has netdev and netdev has TX queues. This function is to check
4419 * each of those TX queues if they are hung, trigger recovery by issuing
4422 static void i40e_detect_recover_hung(struct i40e_pf
*pf
)
4424 struct net_device
*netdev
;
4425 struct i40e_vsi
*vsi
;
4428 /* Only for LAN VSI */
4429 vsi
= pf
->vsi
[pf
->lan_vsi
];
4434 /* Make sure, VSI state is not DOWN/RECOVERY_PENDING */
4435 if (test_bit(__I40E_DOWN
, &vsi
->back
->state
) ||
4436 test_bit(__I40E_RESET_RECOVERY_PENDING
, &vsi
->back
->state
))
4439 /* Make sure type is MAIN VSI */
4440 if (vsi
->type
!= I40E_VSI_MAIN
)
4443 netdev
= vsi
->netdev
;
4447 /* Bail out if netif_carrier is not OK */
4448 if (!netif_carrier_ok(netdev
))
4451 /* Go thru' TX queues for netdev */
4452 for (i
= 0; i
< netdev
->num_tx_queues
; i
++) {
4453 struct netdev_queue
*q
;
4455 q
= netdev_get_tx_queue(netdev
, i
);
4457 i40e_detect_recover_hung_queue(i
, vsi
);
4462 * i40e_get_iscsi_tc_map - Return TC map for iSCSI APP
4463 * @pf: pointer to PF
4465 * Get TC map for ISCSI PF type that will include iSCSI TC
4468 static u8
i40e_get_iscsi_tc_map(struct i40e_pf
*pf
)
4470 struct i40e_dcb_app_priority_table app
;
4471 struct i40e_hw
*hw
= &pf
->hw
;
4472 u8 enabled_tc
= 1; /* TC0 is always enabled */
4474 /* Get the iSCSI APP TLV */
4475 struct i40e_dcbx_config
*dcbcfg
= &hw
->local_dcbx_config
;
4477 for (i
= 0; i
< dcbcfg
->numapps
; i
++) {
4478 app
= dcbcfg
->app
[i
];
4479 if (app
.selector
== I40E_APP_SEL_TCPIP
&&
4480 app
.protocolid
== I40E_APP_PROTOID_ISCSI
) {
4481 tc
= dcbcfg
->etscfg
.prioritytable
[app
.priority
];
4482 enabled_tc
|= BIT(tc
);
4491 * i40e_dcb_get_num_tc - Get the number of TCs from DCBx config
4492 * @dcbcfg: the corresponding DCBx configuration structure
4494 * Return the number of TCs from given DCBx configuration
4496 static u8
i40e_dcb_get_num_tc(struct i40e_dcbx_config
*dcbcfg
)
4501 /* Scan the ETS Config Priority Table to find
4502 * traffic class enabled for a given priority
4503 * and use the traffic class index to get the
4504 * number of traffic classes enabled
4506 for (i
= 0; i
< I40E_MAX_USER_PRIORITY
; i
++) {
4507 if (dcbcfg
->etscfg
.prioritytable
[i
] > num_tc
)
4508 num_tc
= dcbcfg
->etscfg
.prioritytable
[i
];
4511 /* Traffic class index starts from zero so
4512 * increment to return the actual count
4518 * i40e_dcb_get_enabled_tc - Get enabled traffic classes
4519 * @dcbcfg: the corresponding DCBx configuration structure
4521 * Query the current DCB configuration and return the number of
4522 * traffic classes enabled from the given DCBX config
4524 static u8
i40e_dcb_get_enabled_tc(struct i40e_dcbx_config
*dcbcfg
)
4526 u8 num_tc
= i40e_dcb_get_num_tc(dcbcfg
);
4530 for (i
= 0; i
< num_tc
; i
++)
4531 enabled_tc
|= BIT(i
);
4537 * i40e_pf_get_num_tc - Get enabled traffic classes for PF
4538 * @pf: PF being queried
4540 * Return number of traffic classes enabled for the given PF
4542 static u8
i40e_pf_get_num_tc(struct i40e_pf
*pf
)
4544 struct i40e_hw
*hw
= &pf
->hw
;
4547 struct i40e_dcbx_config
*dcbcfg
= &hw
->local_dcbx_config
;
4549 /* If DCB is not enabled then always in single TC */
4550 if (!(pf
->flags
& I40E_FLAG_DCB_ENABLED
))
4553 /* SFP mode will be enabled for all TCs on port */
4554 if (!(pf
->flags
& I40E_FLAG_MFP_ENABLED
))
4555 return i40e_dcb_get_num_tc(dcbcfg
);
4557 /* MFP mode return count of enabled TCs for this PF */
4558 if (pf
->hw
.func_caps
.iscsi
)
4559 enabled_tc
= i40e_get_iscsi_tc_map(pf
);
4561 return 1; /* Only TC0 */
4563 /* At least have TC0 */
4564 enabled_tc
= (enabled_tc
? enabled_tc
: 0x1);
4565 for (i
= 0; i
< I40E_MAX_TRAFFIC_CLASS
; i
++) {
4566 if (enabled_tc
& BIT(i
))
4573 * i40e_pf_get_default_tc - Get bitmap for first enabled TC
4574 * @pf: PF being queried
4576 * Return a bitmap for first enabled traffic class for this PF.
4578 static u8
i40e_pf_get_default_tc(struct i40e_pf
*pf
)
4580 u8 enabled_tc
= pf
->hw
.func_caps
.enabled_tcmap
;
4584 return 0x1; /* TC0 */
4586 /* Find the first enabled TC */
4587 for (i
= 0; i
< I40E_MAX_TRAFFIC_CLASS
; i
++) {
4588 if (enabled_tc
& BIT(i
))
4596 * i40e_pf_get_pf_tc_map - Get bitmap for enabled traffic classes
4597 * @pf: PF being queried
4599 * Return a bitmap for enabled traffic classes for this PF.
4601 static u8
i40e_pf_get_tc_map(struct i40e_pf
*pf
)
4603 /* If DCB is not enabled for this PF then just return default TC */
4604 if (!(pf
->flags
& I40E_FLAG_DCB_ENABLED
))
4605 return i40e_pf_get_default_tc(pf
);
4607 /* SFP mode we want PF to be enabled for all TCs */
4608 if (!(pf
->flags
& I40E_FLAG_MFP_ENABLED
))
4609 return i40e_dcb_get_enabled_tc(&pf
->hw
.local_dcbx_config
);
4611 /* MFP enabled and iSCSI PF type */
4612 if (pf
->hw
.func_caps
.iscsi
)
4613 return i40e_get_iscsi_tc_map(pf
);
4615 return i40e_pf_get_default_tc(pf
);
4619 * i40e_vsi_get_bw_info - Query VSI BW Information
4620 * @vsi: the VSI being queried
4622 * Returns 0 on success, negative value on failure
4624 static int i40e_vsi_get_bw_info(struct i40e_vsi
*vsi
)
4626 struct i40e_aqc_query_vsi_ets_sla_config_resp bw_ets_config
= {0};
4627 struct i40e_aqc_query_vsi_bw_config_resp bw_config
= {0};
4628 struct i40e_pf
*pf
= vsi
->back
;
4629 struct i40e_hw
*hw
= &pf
->hw
;
4634 /* Get the VSI level BW configuration */
4635 ret
= i40e_aq_query_vsi_bw_config(hw
, vsi
->seid
, &bw_config
, NULL
);
4637 dev_info(&pf
->pdev
->dev
,
4638 "couldn't get PF vsi bw config, err %s aq_err %s\n",
4639 i40e_stat_str(&pf
->hw
, ret
),
4640 i40e_aq_str(&pf
->hw
, pf
->hw
.aq
.asq_last_status
));
4644 /* Get the VSI level BW configuration per TC */
4645 ret
= i40e_aq_query_vsi_ets_sla_config(hw
, vsi
->seid
, &bw_ets_config
,
4648 dev_info(&pf
->pdev
->dev
,
4649 "couldn't get PF vsi ets bw config, err %s aq_err %s\n",
4650 i40e_stat_str(&pf
->hw
, ret
),
4651 i40e_aq_str(&pf
->hw
, pf
->hw
.aq
.asq_last_status
));
4655 if (bw_config
.tc_valid_bits
!= bw_ets_config
.tc_valid_bits
) {
4656 dev_info(&pf
->pdev
->dev
,
4657 "Enabled TCs mismatch from querying VSI BW info 0x%08x 0x%08x\n",
4658 bw_config
.tc_valid_bits
,
4659 bw_ets_config
.tc_valid_bits
);
4660 /* Still continuing */
4663 vsi
->bw_limit
= le16_to_cpu(bw_config
.port_bw_limit
);
4664 vsi
->bw_max_quanta
= bw_config
.max_bw
;
4665 tc_bw_max
= le16_to_cpu(bw_ets_config
.tc_bw_max
[0]) |
4666 (le16_to_cpu(bw_ets_config
.tc_bw_max
[1]) << 16);
4667 for (i
= 0; i
< I40E_MAX_TRAFFIC_CLASS
; i
++) {
4668 vsi
->bw_ets_share_credits
[i
] = bw_ets_config
.share_credits
[i
];
4669 vsi
->bw_ets_limit_credits
[i
] =
4670 le16_to_cpu(bw_ets_config
.credits
[i
]);
4671 /* 3 bits out of 4 for each TC */
4672 vsi
->bw_ets_max_quanta
[i
] = (u8
)((tc_bw_max
>> (i
*4)) & 0x7);
4679 * i40e_vsi_configure_bw_alloc - Configure VSI BW allocation per TC
4680 * @vsi: the VSI being configured
4681 * @enabled_tc: TC bitmap
4682 * @bw_credits: BW shared credits per TC
4684 * Returns 0 on success, negative value on failure
4686 static int i40e_vsi_configure_bw_alloc(struct i40e_vsi
*vsi
, u8 enabled_tc
,
4689 struct i40e_aqc_configure_vsi_tc_bw_data bw_data
;
4693 bw_data
.tc_valid_bits
= enabled_tc
;
4694 for (i
= 0; i
< I40E_MAX_TRAFFIC_CLASS
; i
++)
4695 bw_data
.tc_bw_credits
[i
] = bw_share
[i
];
4697 ret
= i40e_aq_config_vsi_tc_bw(&vsi
->back
->hw
, vsi
->seid
, &bw_data
,
4700 dev_info(&vsi
->back
->pdev
->dev
,
4701 "AQ command Config VSI BW allocation per TC failed = %d\n",
4702 vsi
->back
->hw
.aq
.asq_last_status
);
4706 for (i
= 0; i
< I40E_MAX_TRAFFIC_CLASS
; i
++)
4707 vsi
->info
.qs_handle
[i
] = bw_data
.qs_handles
[i
];
4713 * i40e_vsi_config_netdev_tc - Setup the netdev TC configuration
4714 * @vsi: the VSI being configured
4715 * @enabled_tc: TC map to be enabled
4718 static void i40e_vsi_config_netdev_tc(struct i40e_vsi
*vsi
, u8 enabled_tc
)
4720 struct net_device
*netdev
= vsi
->netdev
;
4721 struct i40e_pf
*pf
= vsi
->back
;
4722 struct i40e_hw
*hw
= &pf
->hw
;
4725 struct i40e_dcbx_config
*dcbcfg
= &hw
->local_dcbx_config
;
4731 netdev_reset_tc(netdev
);
4735 /* Set up actual enabled TCs on the VSI */
4736 if (netdev_set_num_tc(netdev
, vsi
->tc_config
.numtc
))
4739 /* set per TC queues for the VSI */
4740 for (i
= 0; i
< I40E_MAX_TRAFFIC_CLASS
; i
++) {
4741 /* Only set TC queues for enabled tcs
4743 * e.g. For a VSI that has TC0 and TC3 enabled the
4744 * enabled_tc bitmap would be 0x00001001; the driver
4745 * will set the numtc for netdev as 2 that will be
4746 * referenced by the netdev layer as TC 0 and 1.
4748 if (vsi
->tc_config
.enabled_tc
& BIT(i
))
4749 netdev_set_tc_queue(netdev
,
4750 vsi
->tc_config
.tc_info
[i
].netdev_tc
,
4751 vsi
->tc_config
.tc_info
[i
].qcount
,
4752 vsi
->tc_config
.tc_info
[i
].qoffset
);
4755 /* Assign UP2TC map for the VSI */
4756 for (i
= 0; i
< I40E_MAX_USER_PRIORITY
; i
++) {
4757 /* Get the actual TC# for the UP */
4758 u8 ets_tc
= dcbcfg
->etscfg
.prioritytable
[i
];
4759 /* Get the mapped netdev TC# for the UP */
4760 netdev_tc
= vsi
->tc_config
.tc_info
[ets_tc
].netdev_tc
;
4761 netdev_set_prio_tc_map(netdev
, i
, netdev_tc
);
4766 * i40e_vsi_update_queue_map - Update our copy of VSi info with new queue map
4767 * @vsi: the VSI being configured
4768 * @ctxt: the ctxt buffer returned from AQ VSI update param command
4770 static void i40e_vsi_update_queue_map(struct i40e_vsi
*vsi
,
4771 struct i40e_vsi_context
*ctxt
)
4773 /* copy just the sections touched not the entire info
4774 * since not all sections are valid as returned by
4777 vsi
->info
.mapping_flags
= ctxt
->info
.mapping_flags
;
4778 memcpy(&vsi
->info
.queue_mapping
,
4779 &ctxt
->info
.queue_mapping
, sizeof(vsi
->info
.queue_mapping
));
4780 memcpy(&vsi
->info
.tc_mapping
, ctxt
->info
.tc_mapping
,
4781 sizeof(vsi
->info
.tc_mapping
));
4785 * i40e_vsi_config_tc - Configure VSI Tx Scheduler for given TC map
4786 * @vsi: VSI to be configured
4787 * @enabled_tc: TC bitmap
4789 * This configures a particular VSI for TCs that are mapped to the
4790 * given TC bitmap. It uses default bandwidth share for TCs across
4791 * VSIs to configure TC for a particular VSI.
4794 * It is expected that the VSI queues have been quisced before calling
4797 static int i40e_vsi_config_tc(struct i40e_vsi
*vsi
, u8 enabled_tc
)
4799 u8 bw_share
[I40E_MAX_TRAFFIC_CLASS
] = {0};
4800 struct i40e_vsi_context ctxt
;
4804 /* Check if enabled_tc is same as existing or new TCs */
4805 if (vsi
->tc_config
.enabled_tc
== enabled_tc
)
4808 /* Enable ETS TCs with equal BW Share for now across all VSIs */
4809 for (i
= 0; i
< I40E_MAX_TRAFFIC_CLASS
; i
++) {
4810 if (enabled_tc
& BIT(i
))
4814 ret
= i40e_vsi_configure_bw_alloc(vsi
, enabled_tc
, bw_share
);
4816 dev_info(&vsi
->back
->pdev
->dev
,
4817 "Failed configuring TC map %d for VSI %d\n",
4818 enabled_tc
, vsi
->seid
);
4822 /* Update Queue Pairs Mapping for currently enabled UPs */
4823 ctxt
.seid
= vsi
->seid
;
4824 ctxt
.pf_num
= vsi
->back
->hw
.pf_id
;
4826 ctxt
.uplink_seid
= vsi
->uplink_seid
;
4827 ctxt
.info
= vsi
->info
;
4828 i40e_vsi_setup_queue_map(vsi
, &ctxt
, enabled_tc
, false);
4830 /* Update the VSI after updating the VSI queue-mapping information */
4831 ret
= i40e_aq_update_vsi_params(&vsi
->back
->hw
, &ctxt
, NULL
);
4833 dev_info(&vsi
->back
->pdev
->dev
,
4834 "Update vsi tc config failed, err %s aq_err %s\n",
4835 i40e_stat_str(&vsi
->back
->hw
, ret
),
4836 i40e_aq_str(&vsi
->back
->hw
,
4837 vsi
->back
->hw
.aq
.asq_last_status
));
4840 /* update the local VSI info with updated queue map */
4841 i40e_vsi_update_queue_map(vsi
, &ctxt
);
4842 vsi
->info
.valid_sections
= 0;
4844 /* Update current VSI BW information */
4845 ret
= i40e_vsi_get_bw_info(vsi
);
4847 dev_info(&vsi
->back
->pdev
->dev
,
4848 "Failed updating vsi bw info, err %s aq_err %s\n",
4849 i40e_stat_str(&vsi
->back
->hw
, ret
),
4850 i40e_aq_str(&vsi
->back
->hw
,
4851 vsi
->back
->hw
.aq
.asq_last_status
));
4855 /* Update the netdev TC setup */
4856 i40e_vsi_config_netdev_tc(vsi
, enabled_tc
);
4862 * i40e_veb_config_tc - Configure TCs for given VEB
4864 * @enabled_tc: TC bitmap
4866 * Configures given TC bitmap for VEB (switching) element
4868 int i40e_veb_config_tc(struct i40e_veb
*veb
, u8 enabled_tc
)
4870 struct i40e_aqc_configure_switching_comp_bw_config_data bw_data
= {0};
4871 struct i40e_pf
*pf
= veb
->pf
;
4875 /* No TCs or already enabled TCs just return */
4876 if (!enabled_tc
|| veb
->enabled_tc
== enabled_tc
)
4879 bw_data
.tc_valid_bits
= enabled_tc
;
4880 /* bw_data.absolute_credits is not set (relative) */
4882 /* Enable ETS TCs with equal BW Share for now */
4883 for (i
= 0; i
< I40E_MAX_TRAFFIC_CLASS
; i
++) {
4884 if (enabled_tc
& BIT(i
))
4885 bw_data
.tc_bw_share_credits
[i
] = 1;
4888 ret
= i40e_aq_config_switch_comp_bw_config(&pf
->hw
, veb
->seid
,
4891 dev_info(&pf
->pdev
->dev
,
4892 "VEB bw config failed, err %s aq_err %s\n",
4893 i40e_stat_str(&pf
->hw
, ret
),
4894 i40e_aq_str(&pf
->hw
, pf
->hw
.aq
.asq_last_status
));
4898 /* Update the BW information */
4899 ret
= i40e_veb_get_bw_info(veb
);
4901 dev_info(&pf
->pdev
->dev
,
4902 "Failed getting veb bw config, err %s aq_err %s\n",
4903 i40e_stat_str(&pf
->hw
, ret
),
4904 i40e_aq_str(&pf
->hw
, pf
->hw
.aq
.asq_last_status
));
4911 #ifdef CONFIG_I40E_DCB
4913 * i40e_dcb_reconfigure - Reconfigure all VEBs and VSIs
4916 * Reconfigure VEB/VSIs on a given PF; it is assumed that
4917 * the caller would've quiesce all the VSIs before calling
4920 static void i40e_dcb_reconfigure(struct i40e_pf
*pf
)
4926 /* Enable the TCs available on PF to all VEBs */
4927 tc_map
= i40e_pf_get_tc_map(pf
);
4928 for (v
= 0; v
< I40E_MAX_VEB
; v
++) {
4931 ret
= i40e_veb_config_tc(pf
->veb
[v
], tc_map
);
4933 dev_info(&pf
->pdev
->dev
,
4934 "Failed configuring TC for VEB seid=%d\n",
4936 /* Will try to configure as many components */
4940 /* Update each VSI */
4941 for (v
= 0; v
< pf
->num_alloc_vsi
; v
++) {
4945 /* - Enable all TCs for the LAN VSI
4947 * - For FCoE VSI only enable the TC configured
4948 * as per the APP TLV
4950 * - For all others keep them at TC0 for now
4952 if (v
== pf
->lan_vsi
)
4953 tc_map
= i40e_pf_get_tc_map(pf
);
4955 tc_map
= i40e_pf_get_default_tc(pf
);
4957 if (pf
->vsi
[v
]->type
== I40E_VSI_FCOE
)
4958 tc_map
= i40e_get_fcoe_tc_map(pf
);
4959 #endif /* #ifdef I40E_FCOE */
4961 ret
= i40e_vsi_config_tc(pf
->vsi
[v
], tc_map
);
4963 dev_info(&pf
->pdev
->dev
,
4964 "Failed configuring TC for VSI seid=%d\n",
4966 /* Will try to configure as many components */
4968 /* Re-configure VSI vectors based on updated TC map */
4969 i40e_vsi_map_rings_to_vectors(pf
->vsi
[v
]);
4970 if (pf
->vsi
[v
]->netdev
)
4971 i40e_dcbnl_set_all(pf
->vsi
[v
]);
4977 * i40e_resume_port_tx - Resume port Tx
4980 * Resume a port's Tx and issue a PF reset in case of failure to
4983 static int i40e_resume_port_tx(struct i40e_pf
*pf
)
4985 struct i40e_hw
*hw
= &pf
->hw
;
4988 ret
= i40e_aq_resume_port_tx(hw
, NULL
);
4990 dev_info(&pf
->pdev
->dev
,
4991 "Resume Port Tx failed, err %s aq_err %s\n",
4992 i40e_stat_str(&pf
->hw
, ret
),
4993 i40e_aq_str(&pf
->hw
, pf
->hw
.aq
.asq_last_status
));
4994 /* Schedule PF reset to recover */
4995 set_bit(__I40E_PF_RESET_REQUESTED
, &pf
->state
);
4996 i40e_service_event_schedule(pf
);
5003 * i40e_init_pf_dcb - Initialize DCB configuration
5004 * @pf: PF being configured
5006 * Query the current DCB configuration and cache it
5007 * in the hardware structure
5009 static int i40e_init_pf_dcb(struct i40e_pf
*pf
)
5011 struct i40e_hw
*hw
= &pf
->hw
;
5014 /* Do not enable DCB for SW1 and SW2 images even if the FW is capable */
5015 if (pf
->flags
& I40E_FLAG_NO_DCB_SUPPORT
)
5018 /* Get the initial DCB configuration */
5019 err
= i40e_init_dcb(hw
);
5021 /* Device/Function is not DCBX capable */
5022 if ((!hw
->func_caps
.dcb
) ||
5023 (hw
->dcbx_status
== I40E_DCBX_STATUS_DISABLED
)) {
5024 dev_info(&pf
->pdev
->dev
,
5025 "DCBX offload is not supported or is disabled for this PF.\n");
5027 if (pf
->flags
& I40E_FLAG_MFP_ENABLED
)
5031 /* When status is not DISABLED then DCBX in FW */
5032 pf
->dcbx_cap
= DCB_CAP_DCBX_LLD_MANAGED
|
5033 DCB_CAP_DCBX_VER_IEEE
;
5035 pf
->flags
|= I40E_FLAG_DCB_CAPABLE
;
5036 /* Enable DCB tagging only when more than one TC */
5037 if (i40e_dcb_get_num_tc(&hw
->local_dcbx_config
) > 1)
5038 pf
->flags
|= I40E_FLAG_DCB_ENABLED
;
5039 dev_dbg(&pf
->pdev
->dev
,
5040 "DCBX offload is supported for this PF.\n");
5043 dev_info(&pf
->pdev
->dev
,
5044 "Query for DCB configuration failed, err %s aq_err %s\n",
5045 i40e_stat_str(&pf
->hw
, err
),
5046 i40e_aq_str(&pf
->hw
, pf
->hw
.aq
.asq_last_status
));
5052 #endif /* CONFIG_I40E_DCB */
5053 #define SPEED_SIZE 14
5056 * i40e_print_link_message - print link up or down
5057 * @vsi: the VSI for which link needs a message
5059 void i40e_print_link_message(struct i40e_vsi
*vsi
, bool isup
)
5061 char *speed
= "Unknown";
5062 char *fc
= "Unknown";
5064 if (vsi
->current_isup
== isup
)
5066 vsi
->current_isup
= isup
;
5068 netdev_info(vsi
->netdev
, "NIC Link is Down\n");
5072 /* Warn user if link speed on NPAR enabled partition is not at
5075 if (vsi
->back
->hw
.func_caps
.npar_enable
&&
5076 (vsi
->back
->hw
.phy
.link_info
.link_speed
== I40E_LINK_SPEED_1GB
||
5077 vsi
->back
->hw
.phy
.link_info
.link_speed
== I40E_LINK_SPEED_100MB
))
5078 netdev_warn(vsi
->netdev
,
5079 "The partition detected link speed that is less than 10Gbps\n");
5081 switch (vsi
->back
->hw
.phy
.link_info
.link_speed
) {
5082 case I40E_LINK_SPEED_40GB
:
5085 case I40E_LINK_SPEED_20GB
:
5088 case I40E_LINK_SPEED_10GB
:
5091 case I40E_LINK_SPEED_1GB
:
5094 case I40E_LINK_SPEED_100MB
:
5101 switch (vsi
->back
->hw
.fc
.current_mode
) {
5105 case I40E_FC_TX_PAUSE
:
5108 case I40E_FC_RX_PAUSE
:
5116 netdev_info(vsi
->netdev
, "NIC Link is Up %sbps Full Duplex, Flow Control: %s\n",
5121 * i40e_up_complete - Finish the last steps of bringing up a connection
5122 * @vsi: the VSI being configured
5124 static int i40e_up_complete(struct i40e_vsi
*vsi
)
5126 struct i40e_pf
*pf
= vsi
->back
;
5129 if (pf
->flags
& I40E_FLAG_MSIX_ENABLED
)
5130 i40e_vsi_configure_msix(vsi
);
5132 i40e_configure_msi_and_legacy(vsi
);
5135 err
= i40e_vsi_control_rings(vsi
, true);
5139 clear_bit(__I40E_DOWN
, &vsi
->state
);
5140 i40e_napi_enable_all(vsi
);
5141 i40e_vsi_enable_irq(vsi
);
5143 if ((pf
->hw
.phy
.link_info
.link_info
& I40E_AQ_LINK_UP
) &&
5145 i40e_print_link_message(vsi
, true);
5146 netif_tx_start_all_queues(vsi
->netdev
);
5147 netif_carrier_on(vsi
->netdev
);
5148 } else if (vsi
->netdev
) {
5149 i40e_print_link_message(vsi
, false);
5150 /* need to check for qualified module here*/
5151 if ((pf
->hw
.phy
.link_info
.link_info
&
5152 I40E_AQ_MEDIA_AVAILABLE
) &&
5153 (!(pf
->hw
.phy
.link_info
.an_info
&
5154 I40E_AQ_QUALIFIED_MODULE
)))
5155 netdev_err(vsi
->netdev
,
5156 "the driver failed to link because an unqualified module was detected.");
5159 /* replay FDIR SB filters */
5160 if (vsi
->type
== I40E_VSI_FDIR
) {
5161 /* reset fd counters */
5162 pf
->fd_add_err
= pf
->fd_atr_cnt
= 0;
5163 if (pf
->fd_tcp_rule
> 0) {
5164 pf
->flags
&= ~I40E_FLAG_FD_ATR_ENABLED
;
5165 if (I40E_DEBUG_FD
& pf
->hw
.debug_mask
)
5166 dev_info(&pf
->pdev
->dev
, "Forcing ATR off, sideband rules for TCP/IPv4 exist\n");
5167 pf
->fd_tcp_rule
= 0;
5169 i40e_fdir_filter_restore(vsi
);
5171 i40e_service_event_schedule(pf
);
5177 * i40e_vsi_reinit_locked - Reset the VSI
5178 * @vsi: the VSI being configured
5180 * Rebuild the ring structs after some configuration
5181 * has changed, e.g. MTU size.
5183 static void i40e_vsi_reinit_locked(struct i40e_vsi
*vsi
)
5185 struct i40e_pf
*pf
= vsi
->back
;
5187 WARN_ON(in_interrupt());
5188 while (test_and_set_bit(__I40E_CONFIG_BUSY
, &pf
->state
))
5189 usleep_range(1000, 2000);
5192 /* Give a VF some time to respond to the reset. The
5193 * two second wait is based upon the watchdog cycle in
5196 if (vsi
->type
== I40E_VSI_SRIOV
)
5199 clear_bit(__I40E_CONFIG_BUSY
, &pf
->state
);
5203 * i40e_up - Bring the connection back up after being down
5204 * @vsi: the VSI being configured
5206 int i40e_up(struct i40e_vsi
*vsi
)
5210 err
= i40e_vsi_configure(vsi
);
5212 err
= i40e_up_complete(vsi
);
5218 * i40e_down - Shutdown the connection processing
5219 * @vsi: the VSI being stopped
5221 void i40e_down(struct i40e_vsi
*vsi
)
5225 /* It is assumed that the caller of this function
5226 * sets the vsi->state __I40E_DOWN bit.
5229 netif_carrier_off(vsi
->netdev
);
5230 netif_tx_disable(vsi
->netdev
);
5232 i40e_vsi_disable_irq(vsi
);
5233 i40e_vsi_control_rings(vsi
, false);
5234 i40e_napi_disable_all(vsi
);
5236 for (i
= 0; i
< vsi
->num_queue_pairs
; i
++) {
5237 i40e_clean_tx_ring(vsi
->tx_rings
[i
]);
5238 i40e_clean_rx_ring(vsi
->rx_rings
[i
]);
5243 * i40e_setup_tc - configure multiple traffic classes
5244 * @netdev: net device to configure
5245 * @tc: number of traffic classes to enable
5247 static int i40e_setup_tc(struct net_device
*netdev
, u8 tc
)
5249 struct i40e_netdev_priv
*np
= netdev_priv(netdev
);
5250 struct i40e_vsi
*vsi
= np
->vsi
;
5251 struct i40e_pf
*pf
= vsi
->back
;
5256 /* Check if DCB enabled to continue */
5257 if (!(pf
->flags
& I40E_FLAG_DCB_ENABLED
)) {
5258 netdev_info(netdev
, "DCB is not enabled for adapter\n");
5262 /* Check if MFP enabled */
5263 if (pf
->flags
& I40E_FLAG_MFP_ENABLED
) {
5264 netdev_info(netdev
, "Configuring TC not supported in MFP mode\n");
5268 /* Check whether tc count is within enabled limit */
5269 if (tc
> i40e_pf_get_num_tc(pf
)) {
5270 netdev_info(netdev
, "TC count greater than enabled on link for adapter\n");
5274 /* Generate TC map for number of tc requested */
5275 for (i
= 0; i
< tc
; i
++)
5276 enabled_tc
|= BIT(i
);
5278 /* Requesting same TC configuration as already enabled */
5279 if (enabled_tc
== vsi
->tc_config
.enabled_tc
)
5282 /* Quiesce VSI queues */
5283 i40e_quiesce_vsi(vsi
);
5285 /* Configure VSI for enabled TCs */
5286 ret
= i40e_vsi_config_tc(vsi
, enabled_tc
);
5288 netdev_info(netdev
, "Failed configuring TC for VSI seid=%d\n",
5294 i40e_unquiesce_vsi(vsi
);
5301 int __i40e_setup_tc(struct net_device
*netdev
, u32 handle
, __be16 proto
,
5302 struct tc_to_netdev
*tc
)
5304 static int __i40e_setup_tc(struct net_device
*netdev
, u32 handle
, __be16 proto
,
5305 struct tc_to_netdev
*tc
)
5308 if (handle
!= TC_H_ROOT
|| tc
->type
!= TC_SETUP_MQPRIO
)
5310 return i40e_setup_tc(netdev
, tc
->tc
);
5314 * i40e_open - Called when a network interface is made active
5315 * @netdev: network interface device structure
5317 * The open entry point is called when a network interface is made
5318 * active by the system (IFF_UP). At this point all resources needed
5319 * for transmit and receive operations are allocated, the interrupt
5320 * handler is registered with the OS, the netdev watchdog subtask is
5321 * enabled, and the stack is notified that the interface is ready.
5323 * Returns 0 on success, negative value on failure
5325 int i40e_open(struct net_device
*netdev
)
5327 struct i40e_netdev_priv
*np
= netdev_priv(netdev
);
5328 struct i40e_vsi
*vsi
= np
->vsi
;
5329 struct i40e_pf
*pf
= vsi
->back
;
5332 /* disallow open during test or if eeprom is broken */
5333 if (test_bit(__I40E_TESTING
, &pf
->state
) ||
5334 test_bit(__I40E_BAD_EEPROM
, &pf
->state
))
5337 netif_carrier_off(netdev
);
5339 err
= i40e_vsi_open(vsi
);
5343 /* configure global TSO hardware offload settings */
5344 wr32(&pf
->hw
, I40E_GLLAN_TSOMSK_F
, be32_to_cpu(TCP_FLAG_PSH
|
5345 TCP_FLAG_FIN
) >> 16);
5346 wr32(&pf
->hw
, I40E_GLLAN_TSOMSK_M
, be32_to_cpu(TCP_FLAG_PSH
|
5348 TCP_FLAG_CWR
) >> 16);
5349 wr32(&pf
->hw
, I40E_GLLAN_TSOMSK_L
, be32_to_cpu(TCP_FLAG_CWR
) >> 16);
5351 #ifdef CONFIG_I40E_VXLAN
5352 vxlan_get_rx_port(netdev
);
5354 #ifdef CONFIG_I40E_GENEVE
5355 if (pf
->flags
& I40E_FLAG_GENEVE_OFFLOAD_CAPABLE
)
5356 geneve_get_rx_port(netdev
);
5364 * @vsi: the VSI to open
5366 * Finish initialization of the VSI.
5368 * Returns 0 on success, negative value on failure
5370 int i40e_vsi_open(struct i40e_vsi
*vsi
)
5372 struct i40e_pf
*pf
= vsi
->back
;
5373 char int_name
[I40E_INT_NAME_STR_LEN
];
5376 /* allocate descriptors */
5377 err
= i40e_vsi_setup_tx_resources(vsi
);
5380 err
= i40e_vsi_setup_rx_resources(vsi
);
5384 err
= i40e_vsi_configure(vsi
);
5389 snprintf(int_name
, sizeof(int_name
) - 1, "%s-%s",
5390 dev_driver_string(&pf
->pdev
->dev
), vsi
->netdev
->name
);
5391 err
= i40e_vsi_request_irq(vsi
, int_name
);
5395 /* Notify the stack of the actual queue counts. */
5396 err
= netif_set_real_num_tx_queues(vsi
->netdev
,
5397 vsi
->num_queue_pairs
);
5399 goto err_set_queues
;
5401 err
= netif_set_real_num_rx_queues(vsi
->netdev
,
5402 vsi
->num_queue_pairs
);
5404 goto err_set_queues
;
5406 } else if (vsi
->type
== I40E_VSI_FDIR
) {
5407 snprintf(int_name
, sizeof(int_name
) - 1, "%s-%s:fdir",
5408 dev_driver_string(&pf
->pdev
->dev
),
5409 dev_name(&pf
->pdev
->dev
));
5410 err
= i40e_vsi_request_irq(vsi
, int_name
);
5417 err
= i40e_up_complete(vsi
);
5419 goto err_up_complete
;
5426 i40e_vsi_free_irq(vsi
);
5428 i40e_vsi_free_rx_resources(vsi
);
5430 i40e_vsi_free_tx_resources(vsi
);
5431 if (vsi
== pf
->vsi
[pf
->lan_vsi
])
5432 i40e_do_reset(pf
, BIT_ULL(__I40E_PF_RESET_REQUESTED
));
5438 * i40e_fdir_filter_exit - Cleans up the Flow Director accounting
5439 * @pf: Pointer to PF
5441 * This function destroys the hlist where all the Flow Director
5442 * filters were saved.
5444 static void i40e_fdir_filter_exit(struct i40e_pf
*pf
)
5446 struct i40e_fdir_filter
*filter
;
5447 struct hlist_node
*node2
;
5449 hlist_for_each_entry_safe(filter
, node2
,
5450 &pf
->fdir_filter_list
, fdir_node
) {
5451 hlist_del(&filter
->fdir_node
);
5454 pf
->fdir_pf_active_filters
= 0;
5458 * i40e_close - Disables a network interface
5459 * @netdev: network interface device structure
5461 * The close entry point is called when an interface is de-activated
5462 * by the OS. The hardware is still under the driver's control, but
5463 * this netdev interface is disabled.
5465 * Returns 0, this is not allowed to fail
5468 int i40e_close(struct net_device
*netdev
)
5470 static int i40e_close(struct net_device
*netdev
)
5473 struct i40e_netdev_priv
*np
= netdev_priv(netdev
);
5474 struct i40e_vsi
*vsi
= np
->vsi
;
5476 i40e_vsi_close(vsi
);
5482 * i40e_do_reset - Start a PF or Core Reset sequence
5483 * @pf: board private structure
5484 * @reset_flags: which reset is requested
5486 * The essential difference in resets is that the PF Reset
5487 * doesn't clear the packet buffers, doesn't reset the PE
5488 * firmware, and doesn't bother the other PFs on the chip.
5490 void i40e_do_reset(struct i40e_pf
*pf
, u32 reset_flags
)
5494 WARN_ON(in_interrupt());
5496 if (i40e_check_asq_alive(&pf
->hw
))
5497 i40e_vc_notify_reset(pf
);
5499 /* do the biggest reset indicated */
5500 if (reset_flags
& BIT_ULL(__I40E_GLOBAL_RESET_REQUESTED
)) {
5502 /* Request a Global Reset
5504 * This will start the chip's countdown to the actual full
5505 * chip reset event, and a warning interrupt to be sent
5506 * to all PFs, including the requestor. Our handler
5507 * for the warning interrupt will deal with the shutdown
5508 * and recovery of the switch setup.
5510 dev_dbg(&pf
->pdev
->dev
, "GlobalR requested\n");
5511 val
= rd32(&pf
->hw
, I40E_GLGEN_RTRIG
);
5512 val
|= I40E_GLGEN_RTRIG_GLOBR_MASK
;
5513 wr32(&pf
->hw
, I40E_GLGEN_RTRIG
, val
);
5515 } else if (reset_flags
& BIT_ULL(__I40E_CORE_RESET_REQUESTED
)) {
5517 /* Request a Core Reset
5519 * Same as Global Reset, except does *not* include the MAC/PHY
5521 dev_dbg(&pf
->pdev
->dev
, "CoreR requested\n");
5522 val
= rd32(&pf
->hw
, I40E_GLGEN_RTRIG
);
5523 val
|= I40E_GLGEN_RTRIG_CORER_MASK
;
5524 wr32(&pf
->hw
, I40E_GLGEN_RTRIG
, val
);
5525 i40e_flush(&pf
->hw
);
5527 } else if (reset_flags
& BIT_ULL(__I40E_PF_RESET_REQUESTED
)) {
5529 /* Request a PF Reset
5531 * Resets only the PF-specific registers
5533 * This goes directly to the tear-down and rebuild of
5534 * the switch, since we need to do all the recovery as
5535 * for the Core Reset.
5537 dev_dbg(&pf
->pdev
->dev
, "PFR requested\n");
5538 i40e_handle_reset_warning(pf
);
5540 } else if (reset_flags
& BIT_ULL(__I40E_REINIT_REQUESTED
)) {
5543 /* Find the VSI(s) that requested a re-init */
5544 dev_info(&pf
->pdev
->dev
,
5545 "VSI reinit requested\n");
5546 for (v
= 0; v
< pf
->num_alloc_vsi
; v
++) {
5547 struct i40e_vsi
*vsi
= pf
->vsi
[v
];
5550 test_bit(__I40E_REINIT_REQUESTED
, &vsi
->state
)) {
5551 i40e_vsi_reinit_locked(pf
->vsi
[v
]);
5552 clear_bit(__I40E_REINIT_REQUESTED
, &vsi
->state
);
5555 } else if (reset_flags
& BIT_ULL(__I40E_DOWN_REQUESTED
)) {
5558 /* Find the VSI(s) that needs to be brought down */
5559 dev_info(&pf
->pdev
->dev
, "VSI down requested\n");
5560 for (v
= 0; v
< pf
->num_alloc_vsi
; v
++) {
5561 struct i40e_vsi
*vsi
= pf
->vsi
[v
];
5564 test_bit(__I40E_DOWN_REQUESTED
, &vsi
->state
)) {
5565 set_bit(__I40E_DOWN
, &vsi
->state
);
5567 clear_bit(__I40E_DOWN_REQUESTED
, &vsi
->state
);
5571 dev_info(&pf
->pdev
->dev
,
5572 "bad reset request 0x%08x\n", reset_flags
);
5576 #ifdef CONFIG_I40E_DCB
5578 * i40e_dcb_need_reconfig - Check if DCB needs reconfig
5579 * @pf: board private structure
5580 * @old_cfg: current DCB config
5581 * @new_cfg: new DCB config
5583 bool i40e_dcb_need_reconfig(struct i40e_pf
*pf
,
5584 struct i40e_dcbx_config
*old_cfg
,
5585 struct i40e_dcbx_config
*new_cfg
)
5587 bool need_reconfig
= false;
5589 /* Check if ETS configuration has changed */
5590 if (memcmp(&new_cfg
->etscfg
,
5592 sizeof(new_cfg
->etscfg
))) {
5593 /* If Priority Table has changed reconfig is needed */
5594 if (memcmp(&new_cfg
->etscfg
.prioritytable
,
5595 &old_cfg
->etscfg
.prioritytable
,
5596 sizeof(new_cfg
->etscfg
.prioritytable
))) {
5597 need_reconfig
= true;
5598 dev_dbg(&pf
->pdev
->dev
, "ETS UP2TC changed.\n");
5601 if (memcmp(&new_cfg
->etscfg
.tcbwtable
,
5602 &old_cfg
->etscfg
.tcbwtable
,
5603 sizeof(new_cfg
->etscfg
.tcbwtable
)))
5604 dev_dbg(&pf
->pdev
->dev
, "ETS TC BW Table changed.\n");
5606 if (memcmp(&new_cfg
->etscfg
.tsatable
,
5607 &old_cfg
->etscfg
.tsatable
,
5608 sizeof(new_cfg
->etscfg
.tsatable
)))
5609 dev_dbg(&pf
->pdev
->dev
, "ETS TSA Table changed.\n");
5612 /* Check if PFC configuration has changed */
5613 if (memcmp(&new_cfg
->pfc
,
5615 sizeof(new_cfg
->pfc
))) {
5616 need_reconfig
= true;
5617 dev_dbg(&pf
->pdev
->dev
, "PFC config change detected.\n");
5620 /* Check if APP Table has changed */
5621 if (memcmp(&new_cfg
->app
,
5623 sizeof(new_cfg
->app
))) {
5624 need_reconfig
= true;
5625 dev_dbg(&pf
->pdev
->dev
, "APP Table change detected.\n");
5628 dev_dbg(&pf
->pdev
->dev
, "dcb need_reconfig=%d\n", need_reconfig
);
5629 return need_reconfig
;
5633 * i40e_handle_lldp_event - Handle LLDP Change MIB event
5634 * @pf: board private structure
5635 * @e: event info posted on ARQ
5637 static int i40e_handle_lldp_event(struct i40e_pf
*pf
,
5638 struct i40e_arq_event_info
*e
)
5640 struct i40e_aqc_lldp_get_mib
*mib
=
5641 (struct i40e_aqc_lldp_get_mib
*)&e
->desc
.params
.raw
;
5642 struct i40e_hw
*hw
= &pf
->hw
;
5643 struct i40e_dcbx_config tmp_dcbx_cfg
;
5644 bool need_reconfig
= false;
5648 /* Not DCB capable or capability disabled */
5649 if (!(pf
->flags
& I40E_FLAG_DCB_CAPABLE
))
5652 /* Ignore if event is not for Nearest Bridge */
5653 type
= ((mib
->type
>> I40E_AQ_LLDP_BRIDGE_TYPE_SHIFT
)
5654 & I40E_AQ_LLDP_BRIDGE_TYPE_MASK
);
5655 dev_dbg(&pf
->pdev
->dev
, "LLDP event mib bridge type 0x%x\n", type
);
5656 if (type
!= I40E_AQ_LLDP_BRIDGE_TYPE_NEAREST_BRIDGE
)
5659 /* Check MIB Type and return if event for Remote MIB update */
5660 type
= mib
->type
& I40E_AQ_LLDP_MIB_TYPE_MASK
;
5661 dev_dbg(&pf
->pdev
->dev
,
5662 "LLDP event mib type %s\n", type
? "remote" : "local");
5663 if (type
== I40E_AQ_LLDP_MIB_REMOTE
) {
5664 /* Update the remote cached instance and return */
5665 ret
= i40e_aq_get_dcb_config(hw
, I40E_AQ_LLDP_MIB_REMOTE
,
5666 I40E_AQ_LLDP_BRIDGE_TYPE_NEAREST_BRIDGE
,
5667 &hw
->remote_dcbx_config
);
5671 /* Store the old configuration */
5672 tmp_dcbx_cfg
= hw
->local_dcbx_config
;
5674 /* Reset the old DCBx configuration data */
5675 memset(&hw
->local_dcbx_config
, 0, sizeof(hw
->local_dcbx_config
));
5676 /* Get updated DCBX data from firmware */
5677 ret
= i40e_get_dcb_config(&pf
->hw
);
5679 dev_info(&pf
->pdev
->dev
,
5680 "Failed querying DCB configuration data from firmware, err %s aq_err %s\n",
5681 i40e_stat_str(&pf
->hw
, ret
),
5682 i40e_aq_str(&pf
->hw
, pf
->hw
.aq
.asq_last_status
));
5686 /* No change detected in DCBX configs */
5687 if (!memcmp(&tmp_dcbx_cfg
, &hw
->local_dcbx_config
,
5688 sizeof(tmp_dcbx_cfg
))) {
5689 dev_dbg(&pf
->pdev
->dev
, "No change detected in DCBX configuration.\n");
5693 need_reconfig
= i40e_dcb_need_reconfig(pf
, &tmp_dcbx_cfg
,
5694 &hw
->local_dcbx_config
);
5696 i40e_dcbnl_flush_apps(pf
, &tmp_dcbx_cfg
, &hw
->local_dcbx_config
);
5701 /* Enable DCB tagging only when more than one TC */
5702 if (i40e_dcb_get_num_tc(&hw
->local_dcbx_config
) > 1)
5703 pf
->flags
|= I40E_FLAG_DCB_ENABLED
;
5705 pf
->flags
&= ~I40E_FLAG_DCB_ENABLED
;
5707 set_bit(__I40E_PORT_TX_SUSPENDED
, &pf
->state
);
5708 /* Reconfiguration needed quiesce all VSIs */
5709 i40e_pf_quiesce_all_vsi(pf
);
5711 /* Changes in configuration update VEB/VSI */
5712 i40e_dcb_reconfigure(pf
);
5714 ret
= i40e_resume_port_tx(pf
);
5716 clear_bit(__I40E_PORT_TX_SUSPENDED
, &pf
->state
);
5717 /* In case of error no point in resuming VSIs */
5721 /* Wait for the PF's Tx queues to be disabled */
5722 ret
= i40e_pf_wait_txq_disabled(pf
);
5724 /* Schedule PF reset to recover */
5725 set_bit(__I40E_PF_RESET_REQUESTED
, &pf
->state
);
5726 i40e_service_event_schedule(pf
);
5728 i40e_pf_unquiesce_all_vsi(pf
);
5734 #endif /* CONFIG_I40E_DCB */
5737 * i40e_do_reset_safe - Protected reset path for userland calls.
5738 * @pf: board private structure
5739 * @reset_flags: which reset is requested
5742 void i40e_do_reset_safe(struct i40e_pf
*pf
, u32 reset_flags
)
5745 i40e_do_reset(pf
, reset_flags
);
5750 * i40e_handle_lan_overflow_event - Handler for LAN queue overflow event
5751 * @pf: board private structure
5752 * @e: event info posted on ARQ
5754 * Handler for LAN Queue Overflow Event generated by the firmware for PF
5757 static void i40e_handle_lan_overflow_event(struct i40e_pf
*pf
,
5758 struct i40e_arq_event_info
*e
)
5760 struct i40e_aqc_lan_overflow
*data
=
5761 (struct i40e_aqc_lan_overflow
*)&e
->desc
.params
.raw
;
5762 u32 queue
= le32_to_cpu(data
->prtdcb_rupto
);
5763 u32 qtx_ctl
= le32_to_cpu(data
->otx_ctl
);
5764 struct i40e_hw
*hw
= &pf
->hw
;
5768 dev_dbg(&pf
->pdev
->dev
, "overflow Rx Queue Number = %d QTX_CTL=0x%08x\n",
5771 /* Queue belongs to VF, find the VF and issue VF reset */
5772 if (((qtx_ctl
& I40E_QTX_CTL_PFVF_Q_MASK
)
5773 >> I40E_QTX_CTL_PFVF_Q_SHIFT
) == I40E_QTX_CTL_VF_QUEUE
) {
5774 vf_id
= (u16
)((qtx_ctl
& I40E_QTX_CTL_VFVM_INDX_MASK
)
5775 >> I40E_QTX_CTL_VFVM_INDX_SHIFT
);
5776 vf_id
-= hw
->func_caps
.vf_base_id
;
5777 vf
= &pf
->vf
[vf_id
];
5778 i40e_vc_notify_vf_reset(vf
);
5779 /* Allow VF to process pending reset notification */
5781 i40e_reset_vf(vf
, false);
5786 * i40e_service_event_complete - Finish up the service event
5787 * @pf: board private structure
5789 static void i40e_service_event_complete(struct i40e_pf
*pf
)
5791 WARN_ON(!test_bit(__I40E_SERVICE_SCHED
, &pf
->state
));
5793 /* flush memory to make sure state is correct before next watchog */
5794 smp_mb__before_atomic();
5795 clear_bit(__I40E_SERVICE_SCHED
, &pf
->state
);
5799 * i40e_get_cur_guaranteed_fd_count - Get the consumed guaranteed FD filters
5800 * @pf: board private structure
5802 u32
i40e_get_cur_guaranteed_fd_count(struct i40e_pf
*pf
)
5806 val
= rd32(&pf
->hw
, I40E_PFQF_FDSTAT
);
5807 fcnt_prog
= (val
& I40E_PFQF_FDSTAT_GUARANT_CNT_MASK
);
5812 * i40e_get_current_fd_count - Get total FD filters programmed for this PF
5813 * @pf: board private structure
5815 u32
i40e_get_current_fd_count(struct i40e_pf
*pf
)
5819 val
= rd32(&pf
->hw
, I40E_PFQF_FDSTAT
);
5820 fcnt_prog
= (val
& I40E_PFQF_FDSTAT_GUARANT_CNT_MASK
) +
5821 ((val
& I40E_PFQF_FDSTAT_BEST_CNT_MASK
) >>
5822 I40E_PFQF_FDSTAT_BEST_CNT_SHIFT
);
5827 * i40e_get_global_fd_count - Get total FD filters programmed on device
5828 * @pf: board private structure
5830 u32
i40e_get_global_fd_count(struct i40e_pf
*pf
)
5834 val
= rd32(&pf
->hw
, I40E_GLQF_FDCNT_0
);
5835 fcnt_prog
= (val
& I40E_GLQF_FDCNT_0_GUARANT_CNT_MASK
) +
5836 ((val
& I40E_GLQF_FDCNT_0_BESTCNT_MASK
) >>
5837 I40E_GLQF_FDCNT_0_BESTCNT_SHIFT
);
5842 * i40e_fdir_check_and_reenable - Function to reenabe FD ATR or SB if disabled
5843 * @pf: board private structure
5845 void i40e_fdir_check_and_reenable(struct i40e_pf
*pf
)
5847 struct i40e_fdir_filter
*filter
;
5848 u32 fcnt_prog
, fcnt_avail
;
5849 struct hlist_node
*node
;
5851 if (test_bit(__I40E_FD_FLUSH_REQUESTED
, &pf
->state
))
5854 /* Check if, FD SB or ATR was auto disabled and if there is enough room
5857 fcnt_prog
= i40e_get_global_fd_count(pf
);
5858 fcnt_avail
= pf
->fdir_pf_filter_count
;
5859 if ((fcnt_prog
< (fcnt_avail
- I40E_FDIR_BUFFER_HEAD_ROOM
)) ||
5860 (pf
->fd_add_err
== 0) ||
5861 (i40e_get_current_atr_cnt(pf
) < pf
->fd_atr_cnt
)) {
5862 if ((pf
->flags
& I40E_FLAG_FD_SB_ENABLED
) &&
5863 (pf
->auto_disable_flags
& I40E_FLAG_FD_SB_ENABLED
)) {
5864 pf
->auto_disable_flags
&= ~I40E_FLAG_FD_SB_ENABLED
;
5865 if (I40E_DEBUG_FD
& pf
->hw
.debug_mask
)
5866 dev_info(&pf
->pdev
->dev
, "FD Sideband/ntuple is being enabled since we have space in the table now\n");
5869 /* Wait for some more space to be available to turn on ATR */
5870 if (fcnt_prog
< (fcnt_avail
- I40E_FDIR_BUFFER_HEAD_ROOM
* 2)) {
5871 if ((pf
->flags
& I40E_FLAG_FD_ATR_ENABLED
) &&
5872 (pf
->auto_disable_flags
& I40E_FLAG_FD_ATR_ENABLED
)) {
5873 pf
->auto_disable_flags
&= ~I40E_FLAG_FD_ATR_ENABLED
;
5874 if (I40E_DEBUG_FD
& pf
->hw
.debug_mask
)
5875 dev_info(&pf
->pdev
->dev
, "ATR is being enabled since we have space in the table now\n");
5879 /* if hw had a problem adding a filter, delete it */
5880 if (pf
->fd_inv
> 0) {
5881 hlist_for_each_entry_safe(filter
, node
,
5882 &pf
->fdir_filter_list
, fdir_node
) {
5883 if (filter
->fd_id
== pf
->fd_inv
) {
5884 hlist_del(&filter
->fdir_node
);
5886 pf
->fdir_pf_active_filters
--;
5892 #define I40E_MIN_FD_FLUSH_INTERVAL 10
5893 #define I40E_MIN_FD_FLUSH_SB_ATR_UNSTABLE 30
5895 * i40e_fdir_flush_and_replay - Function to flush all FD filters and replay SB
5896 * @pf: board private structure
5898 static void i40e_fdir_flush_and_replay(struct i40e_pf
*pf
)
5900 unsigned long min_flush_time
;
5901 int flush_wait_retry
= 50;
5902 bool disable_atr
= false;
5906 if (!(pf
->flags
& (I40E_FLAG_FD_SB_ENABLED
| I40E_FLAG_FD_ATR_ENABLED
)))
5909 if (!time_after(jiffies
, pf
->fd_flush_timestamp
+
5910 (I40E_MIN_FD_FLUSH_INTERVAL
* HZ
)))
5913 /* If the flush is happening too quick and we have mostly SB rules we
5914 * should not re-enable ATR for some time.
5916 min_flush_time
= pf
->fd_flush_timestamp
+
5917 (I40E_MIN_FD_FLUSH_SB_ATR_UNSTABLE
* HZ
);
5918 fd_room
= pf
->fdir_pf_filter_count
- pf
->fdir_pf_active_filters
;
5920 if (!(time_after(jiffies
, min_flush_time
)) &&
5921 (fd_room
< I40E_FDIR_BUFFER_HEAD_ROOM_FOR_ATR
)) {
5922 if (I40E_DEBUG_FD
& pf
->hw
.debug_mask
)
5923 dev_info(&pf
->pdev
->dev
, "ATR disabled, not enough FD filter space.\n");
5927 pf
->fd_flush_timestamp
= jiffies
;
5928 pf
->flags
&= ~I40E_FLAG_FD_ATR_ENABLED
;
5929 /* flush all filters */
5930 wr32(&pf
->hw
, I40E_PFQF_CTL_1
,
5931 I40E_PFQF_CTL_1_CLEARFDTABLE_MASK
);
5932 i40e_flush(&pf
->hw
);
5936 /* Check FD flush status every 5-6msec */
5937 usleep_range(5000, 6000);
5938 reg
= rd32(&pf
->hw
, I40E_PFQF_CTL_1
);
5939 if (!(reg
& I40E_PFQF_CTL_1_CLEARFDTABLE_MASK
))
5941 } while (flush_wait_retry
--);
5942 if (reg
& I40E_PFQF_CTL_1_CLEARFDTABLE_MASK
) {
5943 dev_warn(&pf
->pdev
->dev
, "FD table did not flush, needs more time\n");
5945 /* replay sideband filters */
5946 i40e_fdir_filter_restore(pf
->vsi
[pf
->lan_vsi
]);
5948 pf
->flags
|= I40E_FLAG_FD_ATR_ENABLED
;
5949 clear_bit(__I40E_FD_FLUSH_REQUESTED
, &pf
->state
);
5950 if (I40E_DEBUG_FD
& pf
->hw
.debug_mask
)
5951 dev_info(&pf
->pdev
->dev
, "FD Filter table flushed and FD-SB replayed.\n");
5957 * i40e_get_current_atr_count - Get the count of total FD ATR filters programmed
5958 * @pf: board private structure
5960 u32
i40e_get_current_atr_cnt(struct i40e_pf
*pf
)
5962 return i40e_get_current_fd_count(pf
) - pf
->fdir_pf_active_filters
;
5965 /* We can see up to 256 filter programming desc in transit if the filters are
5966 * being applied really fast; before we see the first
5967 * filter miss error on Rx queue 0. Accumulating enough error messages before
5968 * reacting will make sure we don't cause flush too often.
5970 #define I40E_MAX_FD_PROGRAM_ERROR 256
5973 * i40e_fdir_reinit_subtask - Worker thread to reinit FDIR filter table
5974 * @pf: board private structure
5976 static void i40e_fdir_reinit_subtask(struct i40e_pf
*pf
)
5979 /* if interface is down do nothing */
5980 if (test_bit(__I40E_DOWN
, &pf
->state
))
5983 if (!(pf
->flags
& (I40E_FLAG_FD_SB_ENABLED
| I40E_FLAG_FD_ATR_ENABLED
)))
5986 if (test_bit(__I40E_FD_FLUSH_REQUESTED
, &pf
->state
))
5987 i40e_fdir_flush_and_replay(pf
);
5989 i40e_fdir_check_and_reenable(pf
);
5994 * i40e_vsi_link_event - notify VSI of a link event
5995 * @vsi: vsi to be notified
5996 * @link_up: link up or down
5998 static void i40e_vsi_link_event(struct i40e_vsi
*vsi
, bool link_up
)
6000 if (!vsi
|| test_bit(__I40E_DOWN
, &vsi
->state
))
6003 switch (vsi
->type
) {
6008 if (!vsi
->netdev
|| !vsi
->netdev_registered
)
6012 netif_carrier_on(vsi
->netdev
);
6013 netif_tx_wake_all_queues(vsi
->netdev
);
6015 netif_carrier_off(vsi
->netdev
);
6016 netif_tx_stop_all_queues(vsi
->netdev
);
6020 case I40E_VSI_SRIOV
:
6021 case I40E_VSI_VMDQ2
:
6023 case I40E_VSI_MIRROR
:
6025 /* there is no notification for other VSIs */
6031 * i40e_veb_link_event - notify elements on the veb of a link event
6032 * @veb: veb to be notified
6033 * @link_up: link up or down
6035 static void i40e_veb_link_event(struct i40e_veb
*veb
, bool link_up
)
6040 if (!veb
|| !veb
->pf
)
6044 /* depth first... */
6045 for (i
= 0; i
< I40E_MAX_VEB
; i
++)
6046 if (pf
->veb
[i
] && (pf
->veb
[i
]->uplink_seid
== veb
->seid
))
6047 i40e_veb_link_event(pf
->veb
[i
], link_up
);
6049 /* ... now the local VSIs */
6050 for (i
= 0; i
< pf
->num_alloc_vsi
; i
++)
6051 if (pf
->vsi
[i
] && (pf
->vsi
[i
]->uplink_seid
== veb
->seid
))
6052 i40e_vsi_link_event(pf
->vsi
[i
], link_up
);
6056 * i40e_link_event - Update netif_carrier status
6057 * @pf: board private structure
6059 static void i40e_link_event(struct i40e_pf
*pf
)
6061 struct i40e_vsi
*vsi
= pf
->vsi
[pf
->lan_vsi
];
6062 u8 new_link_speed
, old_link_speed
;
6064 bool new_link
, old_link
;
6066 /* save off old link status information */
6067 pf
->hw
.phy
.link_info_old
= pf
->hw
.phy
.link_info
;
6069 /* set this to force the get_link_status call to refresh state */
6070 pf
->hw
.phy
.get_link_info
= true;
6072 old_link
= (pf
->hw
.phy
.link_info_old
.link_info
& I40E_AQ_LINK_UP
);
6074 status
= i40e_get_link_status(&pf
->hw
, &new_link
);
6076 dev_dbg(&pf
->pdev
->dev
, "couldn't get link state, status: %d\n",
6081 old_link_speed
= pf
->hw
.phy
.link_info_old
.link_speed
;
6082 new_link_speed
= pf
->hw
.phy
.link_info
.link_speed
;
6084 if (new_link
== old_link
&&
6085 new_link_speed
== old_link_speed
&&
6086 (test_bit(__I40E_DOWN
, &vsi
->state
) ||
6087 new_link
== netif_carrier_ok(vsi
->netdev
)))
6090 if (!test_bit(__I40E_DOWN
, &vsi
->state
))
6091 i40e_print_link_message(vsi
, new_link
);
6093 /* Notify the base of the switch tree connected to
6094 * the link. Floating VEBs are not notified.
6096 if (pf
->lan_veb
!= I40E_NO_VEB
&& pf
->veb
[pf
->lan_veb
])
6097 i40e_veb_link_event(pf
->veb
[pf
->lan_veb
], new_link
);
6099 i40e_vsi_link_event(vsi
, new_link
);
6102 i40e_vc_notify_link_state(pf
);
6104 if (pf
->flags
& I40E_FLAG_PTP
)
6105 i40e_ptp_set_increment(pf
);
6109 * i40e_watchdog_subtask - periodic checks not using event driven response
6110 * @pf: board private structure
6112 static void i40e_watchdog_subtask(struct i40e_pf
*pf
)
6116 /* if interface is down do nothing */
6117 if (test_bit(__I40E_DOWN
, &pf
->state
) ||
6118 test_bit(__I40E_CONFIG_BUSY
, &pf
->state
))
6121 /* make sure we don't do these things too often */
6122 if (time_before(jiffies
, (pf
->service_timer_previous
+
6123 pf
->service_timer_period
)))
6125 pf
->service_timer_previous
= jiffies
;
6127 if (pf
->flags
& I40E_FLAG_LINK_POLLING_ENABLED
)
6128 i40e_link_event(pf
);
6130 /* Update the stats for active netdevs so the network stack
6131 * can look at updated numbers whenever it cares to
6133 for (i
= 0; i
< pf
->num_alloc_vsi
; i
++)
6134 if (pf
->vsi
[i
] && pf
->vsi
[i
]->netdev
)
6135 i40e_update_stats(pf
->vsi
[i
]);
6137 if (pf
->flags
& I40E_FLAG_VEB_STATS_ENABLED
) {
6138 /* Update the stats for the active switching components */
6139 for (i
= 0; i
< I40E_MAX_VEB
; i
++)
6141 i40e_update_veb_stats(pf
->veb
[i
]);
6144 i40e_ptp_rx_hang(pf
->vsi
[pf
->lan_vsi
]);
6148 * i40e_reset_subtask - Set up for resetting the device and driver
6149 * @pf: board private structure
6151 static void i40e_reset_subtask(struct i40e_pf
*pf
)
6153 u32 reset_flags
= 0;
6156 if (test_bit(__I40E_REINIT_REQUESTED
, &pf
->state
)) {
6157 reset_flags
|= BIT(__I40E_REINIT_REQUESTED
);
6158 clear_bit(__I40E_REINIT_REQUESTED
, &pf
->state
);
6160 if (test_bit(__I40E_PF_RESET_REQUESTED
, &pf
->state
)) {
6161 reset_flags
|= BIT(__I40E_PF_RESET_REQUESTED
);
6162 clear_bit(__I40E_PF_RESET_REQUESTED
, &pf
->state
);
6164 if (test_bit(__I40E_CORE_RESET_REQUESTED
, &pf
->state
)) {
6165 reset_flags
|= BIT(__I40E_CORE_RESET_REQUESTED
);
6166 clear_bit(__I40E_CORE_RESET_REQUESTED
, &pf
->state
);
6168 if (test_bit(__I40E_GLOBAL_RESET_REQUESTED
, &pf
->state
)) {
6169 reset_flags
|= BIT(__I40E_GLOBAL_RESET_REQUESTED
);
6170 clear_bit(__I40E_GLOBAL_RESET_REQUESTED
, &pf
->state
);
6172 if (test_bit(__I40E_DOWN_REQUESTED
, &pf
->state
)) {
6173 reset_flags
|= BIT(__I40E_DOWN_REQUESTED
);
6174 clear_bit(__I40E_DOWN_REQUESTED
, &pf
->state
);
6177 /* If there's a recovery already waiting, it takes
6178 * precedence before starting a new reset sequence.
6180 if (test_bit(__I40E_RESET_INTR_RECEIVED
, &pf
->state
)) {
6181 i40e_handle_reset_warning(pf
);
6185 /* If we're already down or resetting, just bail */
6187 !test_bit(__I40E_DOWN
, &pf
->state
) &&
6188 !test_bit(__I40E_CONFIG_BUSY
, &pf
->state
))
6189 i40e_do_reset(pf
, reset_flags
);
6196 * i40e_handle_link_event - Handle link event
6197 * @pf: board private structure
6198 * @e: event info posted on ARQ
6200 static void i40e_handle_link_event(struct i40e_pf
*pf
,
6201 struct i40e_arq_event_info
*e
)
6203 struct i40e_aqc_get_link_status
*status
=
6204 (struct i40e_aqc_get_link_status
*)&e
->desc
.params
.raw
;
6206 /* Do a new status request to re-enable LSE reporting
6207 * and load new status information into the hw struct
6208 * This completely ignores any state information
6209 * in the ARQ event info, instead choosing to always
6210 * issue the AQ update link status command.
6212 i40e_link_event(pf
);
6214 /* check for unqualified module, if link is down */
6215 if ((status
->link_info
& I40E_AQ_MEDIA_AVAILABLE
) &&
6216 (!(status
->an_info
& I40E_AQ_QUALIFIED_MODULE
)) &&
6217 (!(status
->link_info
& I40E_AQ_LINK_UP
)))
6218 dev_err(&pf
->pdev
->dev
,
6219 "The driver failed to link because an unqualified module was detected.\n");
6223 * i40e_clean_adminq_subtask - Clean the AdminQ rings
6224 * @pf: board private structure
6226 static void i40e_clean_adminq_subtask(struct i40e_pf
*pf
)
6228 struct i40e_arq_event_info event
;
6229 struct i40e_hw
*hw
= &pf
->hw
;
6236 /* Do not run clean AQ when PF reset fails */
6237 if (test_bit(__I40E_RESET_FAILED
, &pf
->state
))
6240 /* check for error indications */
6241 val
= rd32(&pf
->hw
, pf
->hw
.aq
.arq
.len
);
6243 if (val
& I40E_PF_ARQLEN_ARQVFE_MASK
) {
6244 if (hw
->debug_mask
& I40E_DEBUG_AQ
)
6245 dev_info(&pf
->pdev
->dev
, "ARQ VF Error detected\n");
6246 val
&= ~I40E_PF_ARQLEN_ARQVFE_MASK
;
6248 if (val
& I40E_PF_ARQLEN_ARQOVFL_MASK
) {
6249 if (hw
->debug_mask
& I40E_DEBUG_AQ
)
6250 dev_info(&pf
->pdev
->dev
, "ARQ Overflow Error detected\n");
6251 val
&= ~I40E_PF_ARQLEN_ARQOVFL_MASK
;
6252 pf
->arq_overflows
++;
6254 if (val
& I40E_PF_ARQLEN_ARQCRIT_MASK
) {
6255 if (hw
->debug_mask
& I40E_DEBUG_AQ
)
6256 dev_info(&pf
->pdev
->dev
, "ARQ Critical Error detected\n");
6257 val
&= ~I40E_PF_ARQLEN_ARQCRIT_MASK
;
6260 wr32(&pf
->hw
, pf
->hw
.aq
.arq
.len
, val
);
6262 val
= rd32(&pf
->hw
, pf
->hw
.aq
.asq
.len
);
6264 if (val
& I40E_PF_ATQLEN_ATQVFE_MASK
) {
6265 if (pf
->hw
.debug_mask
& I40E_DEBUG_AQ
)
6266 dev_info(&pf
->pdev
->dev
, "ASQ VF Error detected\n");
6267 val
&= ~I40E_PF_ATQLEN_ATQVFE_MASK
;
6269 if (val
& I40E_PF_ATQLEN_ATQOVFL_MASK
) {
6270 if (pf
->hw
.debug_mask
& I40E_DEBUG_AQ
)
6271 dev_info(&pf
->pdev
->dev
, "ASQ Overflow Error detected\n");
6272 val
&= ~I40E_PF_ATQLEN_ATQOVFL_MASK
;
6274 if (val
& I40E_PF_ATQLEN_ATQCRIT_MASK
) {
6275 if (pf
->hw
.debug_mask
& I40E_DEBUG_AQ
)
6276 dev_info(&pf
->pdev
->dev
, "ASQ Critical Error detected\n");
6277 val
&= ~I40E_PF_ATQLEN_ATQCRIT_MASK
;
6280 wr32(&pf
->hw
, pf
->hw
.aq
.asq
.len
, val
);
6282 event
.buf_len
= I40E_MAX_AQ_BUF_SIZE
;
6283 event
.msg_buf
= kzalloc(event
.buf_len
, GFP_KERNEL
);
6288 ret
= i40e_clean_arq_element(hw
, &event
, &pending
);
6289 if (ret
== I40E_ERR_ADMIN_QUEUE_NO_WORK
)
6292 dev_info(&pf
->pdev
->dev
, "ARQ event error %d\n", ret
);
6296 opcode
= le16_to_cpu(event
.desc
.opcode
);
6299 case i40e_aqc_opc_get_link_status
:
6300 i40e_handle_link_event(pf
, &event
);
6302 case i40e_aqc_opc_send_msg_to_pf
:
6303 ret
= i40e_vc_process_vf_msg(pf
,
6304 le16_to_cpu(event
.desc
.retval
),
6305 le32_to_cpu(event
.desc
.cookie_high
),
6306 le32_to_cpu(event
.desc
.cookie_low
),
6310 case i40e_aqc_opc_lldp_update_mib
:
6311 dev_dbg(&pf
->pdev
->dev
, "ARQ: Update LLDP MIB event received\n");
6312 #ifdef CONFIG_I40E_DCB
6314 ret
= i40e_handle_lldp_event(pf
, &event
);
6316 #endif /* CONFIG_I40E_DCB */
6318 case i40e_aqc_opc_event_lan_overflow
:
6319 dev_dbg(&pf
->pdev
->dev
, "ARQ LAN queue overflow event received\n");
6320 i40e_handle_lan_overflow_event(pf
, &event
);
6322 case i40e_aqc_opc_send_msg_to_peer
:
6323 dev_info(&pf
->pdev
->dev
, "ARQ: Msg from other pf\n");
6325 case i40e_aqc_opc_nvm_erase
:
6326 case i40e_aqc_opc_nvm_update
:
6327 case i40e_aqc_opc_oem_post_update
:
6328 i40e_debug(&pf
->hw
, I40E_DEBUG_NVM
, "ARQ NVM operation completed\n");
6331 dev_info(&pf
->pdev
->dev
,
6332 "ARQ Error: Unknown event 0x%04x received\n",
6336 } while (pending
&& (i
++ < pf
->adminq_work_limit
));
6338 clear_bit(__I40E_ADMINQ_EVENT_PENDING
, &pf
->state
);
6339 /* re-enable Admin queue interrupt cause */
6340 val
= rd32(hw
, I40E_PFINT_ICR0_ENA
);
6341 val
|= I40E_PFINT_ICR0_ENA_ADMINQ_MASK
;
6342 wr32(hw
, I40E_PFINT_ICR0_ENA
, val
);
6345 kfree(event
.msg_buf
);
6349 * i40e_verify_eeprom - make sure eeprom is good to use
6350 * @pf: board private structure
6352 static void i40e_verify_eeprom(struct i40e_pf
*pf
)
6356 err
= i40e_diag_eeprom_test(&pf
->hw
);
6358 /* retry in case of garbage read */
6359 err
= i40e_diag_eeprom_test(&pf
->hw
);
6361 dev_info(&pf
->pdev
->dev
, "eeprom check failed (%d), Tx/Rx traffic disabled\n",
6363 set_bit(__I40E_BAD_EEPROM
, &pf
->state
);
6367 if (!err
&& test_bit(__I40E_BAD_EEPROM
, &pf
->state
)) {
6368 dev_info(&pf
->pdev
->dev
, "eeprom check passed, Tx/Rx traffic enabled\n");
6369 clear_bit(__I40E_BAD_EEPROM
, &pf
->state
);
6374 * i40e_enable_pf_switch_lb
6375 * @pf: pointer to the PF structure
6377 * enable switch loop back or die - no point in a return value
6379 static void i40e_enable_pf_switch_lb(struct i40e_pf
*pf
)
6381 struct i40e_vsi
*vsi
= pf
->vsi
[pf
->lan_vsi
];
6382 struct i40e_vsi_context ctxt
;
6385 ctxt
.seid
= pf
->main_vsi_seid
;
6386 ctxt
.pf_num
= pf
->hw
.pf_id
;
6388 ret
= i40e_aq_get_vsi_params(&pf
->hw
, &ctxt
, NULL
);
6390 dev_info(&pf
->pdev
->dev
,
6391 "couldn't get PF vsi config, err %s aq_err %s\n",
6392 i40e_stat_str(&pf
->hw
, ret
),
6393 i40e_aq_str(&pf
->hw
, pf
->hw
.aq
.asq_last_status
));
6396 ctxt
.flags
= I40E_AQ_VSI_TYPE_PF
;
6397 ctxt
.info
.valid_sections
= cpu_to_le16(I40E_AQ_VSI_PROP_SWITCH_VALID
);
6398 ctxt
.info
.switch_id
|= cpu_to_le16(I40E_AQ_VSI_SW_ID_FLAG_ALLOW_LB
);
6400 ret
= i40e_aq_update_vsi_params(&vsi
->back
->hw
, &ctxt
, NULL
);
6402 dev_info(&pf
->pdev
->dev
,
6403 "update vsi switch failed, err %s aq_err %s\n",
6404 i40e_stat_str(&pf
->hw
, ret
),
6405 i40e_aq_str(&pf
->hw
, pf
->hw
.aq
.asq_last_status
));
6410 * i40e_disable_pf_switch_lb
6411 * @pf: pointer to the PF structure
6413 * disable switch loop back or die - no point in a return value
6415 static void i40e_disable_pf_switch_lb(struct i40e_pf
*pf
)
6417 struct i40e_vsi
*vsi
= pf
->vsi
[pf
->lan_vsi
];
6418 struct i40e_vsi_context ctxt
;
6421 ctxt
.seid
= pf
->main_vsi_seid
;
6422 ctxt
.pf_num
= pf
->hw
.pf_id
;
6424 ret
= i40e_aq_get_vsi_params(&pf
->hw
, &ctxt
, NULL
);
6426 dev_info(&pf
->pdev
->dev
,
6427 "couldn't get PF vsi config, err %s aq_err %s\n",
6428 i40e_stat_str(&pf
->hw
, ret
),
6429 i40e_aq_str(&pf
->hw
, pf
->hw
.aq
.asq_last_status
));
6432 ctxt
.flags
= I40E_AQ_VSI_TYPE_PF
;
6433 ctxt
.info
.valid_sections
= cpu_to_le16(I40E_AQ_VSI_PROP_SWITCH_VALID
);
6434 ctxt
.info
.switch_id
&= ~cpu_to_le16(I40E_AQ_VSI_SW_ID_FLAG_ALLOW_LB
);
6436 ret
= i40e_aq_update_vsi_params(&vsi
->back
->hw
, &ctxt
, NULL
);
6438 dev_info(&pf
->pdev
->dev
,
6439 "update vsi switch failed, err %s aq_err %s\n",
6440 i40e_stat_str(&pf
->hw
, ret
),
6441 i40e_aq_str(&pf
->hw
, pf
->hw
.aq
.asq_last_status
));
6446 * i40e_config_bridge_mode - Configure the HW bridge mode
6447 * @veb: pointer to the bridge instance
6449 * Configure the loop back mode for the LAN VSI that is downlink to the
6450 * specified HW bridge instance. It is expected this function is called
6451 * when a new HW bridge is instantiated.
6453 static void i40e_config_bridge_mode(struct i40e_veb
*veb
)
6455 struct i40e_pf
*pf
= veb
->pf
;
6457 if (pf
->hw
.debug_mask
& I40E_DEBUG_LAN
)
6458 dev_info(&pf
->pdev
->dev
, "enabling bridge mode: %s\n",
6459 veb
->bridge_mode
== BRIDGE_MODE_VEPA
? "VEPA" : "VEB");
6460 if (veb
->bridge_mode
& BRIDGE_MODE_VEPA
)
6461 i40e_disable_pf_switch_lb(pf
);
6463 i40e_enable_pf_switch_lb(pf
);
6467 * i40e_reconstitute_veb - rebuild the VEB and anything connected to it
6468 * @veb: pointer to the VEB instance
6470 * This is a recursive function that first builds the attached VSIs then
6471 * recurses in to build the next layer of VEB. We track the connections
6472 * through our own index numbers because the seid's from the HW could
6473 * change across the reset.
6475 static int i40e_reconstitute_veb(struct i40e_veb
*veb
)
6477 struct i40e_vsi
*ctl_vsi
= NULL
;
6478 struct i40e_pf
*pf
= veb
->pf
;
6482 /* build VSI that owns this VEB, temporarily attached to base VEB */
6483 for (v
= 0; v
< pf
->num_alloc_vsi
&& !ctl_vsi
; v
++) {
6485 pf
->vsi
[v
]->veb_idx
== veb
->idx
&&
6486 pf
->vsi
[v
]->flags
& I40E_VSI_FLAG_VEB_OWNER
) {
6487 ctl_vsi
= pf
->vsi
[v
];
6492 dev_info(&pf
->pdev
->dev
,
6493 "missing owner VSI for veb_idx %d\n", veb
->idx
);
6495 goto end_reconstitute
;
6497 if (ctl_vsi
!= pf
->vsi
[pf
->lan_vsi
])
6498 ctl_vsi
->uplink_seid
= pf
->vsi
[pf
->lan_vsi
]->uplink_seid
;
6499 ret
= i40e_add_vsi(ctl_vsi
);
6501 dev_info(&pf
->pdev
->dev
,
6502 "rebuild of veb_idx %d owner VSI failed: %d\n",
6504 goto end_reconstitute
;
6506 i40e_vsi_reset_stats(ctl_vsi
);
6508 /* create the VEB in the switch and move the VSI onto the VEB */
6509 ret
= i40e_add_veb(veb
, ctl_vsi
);
6511 goto end_reconstitute
;
6513 if (pf
->flags
& I40E_FLAG_VEB_MODE_ENABLED
)
6514 veb
->bridge_mode
= BRIDGE_MODE_VEB
;
6516 veb
->bridge_mode
= BRIDGE_MODE_VEPA
;
6517 i40e_config_bridge_mode(veb
);
6519 /* create the remaining VSIs attached to this VEB */
6520 for (v
= 0; v
< pf
->num_alloc_vsi
; v
++) {
6521 if (!pf
->vsi
[v
] || pf
->vsi
[v
] == ctl_vsi
)
6524 if (pf
->vsi
[v
]->veb_idx
== veb
->idx
) {
6525 struct i40e_vsi
*vsi
= pf
->vsi
[v
];
6527 vsi
->uplink_seid
= veb
->seid
;
6528 ret
= i40e_add_vsi(vsi
);
6530 dev_info(&pf
->pdev
->dev
,
6531 "rebuild of vsi_idx %d failed: %d\n",
6533 goto end_reconstitute
;
6535 i40e_vsi_reset_stats(vsi
);
6539 /* create any VEBs attached to this VEB - RECURSION */
6540 for (veb_idx
= 0; veb_idx
< I40E_MAX_VEB
; veb_idx
++) {
6541 if (pf
->veb
[veb_idx
] && pf
->veb
[veb_idx
]->veb_idx
== veb
->idx
) {
6542 pf
->veb
[veb_idx
]->uplink_seid
= veb
->seid
;
6543 ret
= i40e_reconstitute_veb(pf
->veb
[veb_idx
]);
6554 * i40e_get_capabilities - get info about the HW
6555 * @pf: the PF struct
6557 static int i40e_get_capabilities(struct i40e_pf
*pf
)
6559 struct i40e_aqc_list_capabilities_element_resp
*cap_buf
;
6564 buf_len
= 40 * sizeof(struct i40e_aqc_list_capabilities_element_resp
);
6566 cap_buf
= kzalloc(buf_len
, GFP_KERNEL
);
6570 /* this loads the data into the hw struct for us */
6571 err
= i40e_aq_discover_capabilities(&pf
->hw
, cap_buf
, buf_len
,
6573 i40e_aqc_opc_list_func_capabilities
,
6575 /* data loaded, buffer no longer needed */
6578 if (pf
->hw
.aq
.asq_last_status
== I40E_AQ_RC_ENOMEM
) {
6579 /* retry with a larger buffer */
6580 buf_len
= data_size
;
6581 } else if (pf
->hw
.aq
.asq_last_status
!= I40E_AQ_RC_OK
) {
6582 dev_info(&pf
->pdev
->dev
,
6583 "capability discovery failed, err %s aq_err %s\n",
6584 i40e_stat_str(&pf
->hw
, err
),
6585 i40e_aq_str(&pf
->hw
,
6586 pf
->hw
.aq
.asq_last_status
));
6591 if (pf
->hw
.debug_mask
& I40E_DEBUG_USER
)
6592 dev_info(&pf
->pdev
->dev
,
6593 "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",
6594 pf
->hw
.pf_id
, pf
->hw
.func_caps
.num_vfs
,
6595 pf
->hw
.func_caps
.num_msix_vectors
,
6596 pf
->hw
.func_caps
.num_msix_vectors_vf
,
6597 pf
->hw
.func_caps
.fd_filters_guaranteed
,
6598 pf
->hw
.func_caps
.fd_filters_best_effort
,
6599 pf
->hw
.func_caps
.num_tx_qp
,
6600 pf
->hw
.func_caps
.num_vsis
);
6602 #define DEF_NUM_VSI (1 + (pf->hw.func_caps.fcoe ? 1 : 0) \
6603 + pf->hw.func_caps.num_vfs)
6604 if (pf
->hw
.revision_id
== 0 && (DEF_NUM_VSI
> pf
->hw
.func_caps
.num_vsis
)) {
6605 dev_info(&pf
->pdev
->dev
,
6606 "got num_vsis %d, setting num_vsis to %d\n",
6607 pf
->hw
.func_caps
.num_vsis
, DEF_NUM_VSI
);
6608 pf
->hw
.func_caps
.num_vsis
= DEF_NUM_VSI
;
6614 static int i40e_vsi_clear(struct i40e_vsi
*vsi
);
6617 * i40e_fdir_sb_setup - initialize the Flow Director resources for Sideband
6618 * @pf: board private structure
6620 static void i40e_fdir_sb_setup(struct i40e_pf
*pf
)
6622 struct i40e_vsi
*vsi
;
6625 /* quick workaround for an NVM issue that leaves a critical register
6628 if (!rd32(&pf
->hw
, I40E_GLQF_HKEY(0))) {
6629 static const u32 hkey
[] = {
6630 0xe640d33f, 0xcdfe98ab, 0x73fa7161, 0x0d7a7d36,
6631 0xeacb7d61, 0xaa4f05b6, 0x9c5c89ed, 0xfc425ddb,
6632 0xa4654832, 0xfc7461d4, 0x8f827619, 0xf5c63c21,
6635 for (i
= 0; i
<= I40E_GLQF_HKEY_MAX_INDEX
; i
++)
6636 wr32(&pf
->hw
, I40E_GLQF_HKEY(i
), hkey
[i
]);
6639 if (!(pf
->flags
& I40E_FLAG_FD_SB_ENABLED
))
6642 /* find existing VSI and see if it needs configuring */
6644 for (i
= 0; i
< pf
->num_alloc_vsi
; i
++) {
6645 if (pf
->vsi
[i
] && pf
->vsi
[i
]->type
== I40E_VSI_FDIR
) {
6651 /* create a new VSI if none exists */
6653 vsi
= i40e_vsi_setup(pf
, I40E_VSI_FDIR
,
6654 pf
->vsi
[pf
->lan_vsi
]->seid
, 0);
6656 dev_info(&pf
->pdev
->dev
, "Couldn't create FDir VSI\n");
6657 pf
->flags
&= ~I40E_FLAG_FD_SB_ENABLED
;
6662 i40e_vsi_setup_irqhandler(vsi
, i40e_fdir_clean_ring
);
6666 * i40e_fdir_teardown - release the Flow Director resources
6667 * @pf: board private structure
6669 static void i40e_fdir_teardown(struct i40e_pf
*pf
)
6673 i40e_fdir_filter_exit(pf
);
6674 for (i
= 0; i
< pf
->num_alloc_vsi
; i
++) {
6675 if (pf
->vsi
[i
] && pf
->vsi
[i
]->type
== I40E_VSI_FDIR
) {
6676 i40e_vsi_release(pf
->vsi
[i
]);
6683 * i40e_prep_for_reset - prep for the core to reset
6684 * @pf: board private structure
6686 * Close up the VFs and other things in prep for PF Reset.
6688 static void i40e_prep_for_reset(struct i40e_pf
*pf
)
6690 struct i40e_hw
*hw
= &pf
->hw
;
6691 i40e_status ret
= 0;
6694 clear_bit(__I40E_RESET_INTR_RECEIVED
, &pf
->state
);
6695 if (test_and_set_bit(__I40E_RESET_RECOVERY_PENDING
, &pf
->state
))
6698 dev_dbg(&pf
->pdev
->dev
, "Tearing down internal switch for reset\n");
6700 /* quiesce the VSIs and their queues that are not already DOWN */
6701 i40e_pf_quiesce_all_vsi(pf
);
6703 for (v
= 0; v
< pf
->num_alloc_vsi
; v
++) {
6705 pf
->vsi
[v
]->seid
= 0;
6708 i40e_shutdown_adminq(&pf
->hw
);
6710 /* call shutdown HMC */
6711 if (hw
->hmc
.hmc_obj
) {
6712 ret
= i40e_shutdown_lan_hmc(hw
);
6714 dev_warn(&pf
->pdev
->dev
,
6715 "shutdown_lan_hmc failed: %d\n", ret
);
6720 * i40e_send_version - update firmware with driver version
6723 static void i40e_send_version(struct i40e_pf
*pf
)
6725 struct i40e_driver_version dv
;
6727 dv
.major_version
= DRV_VERSION_MAJOR
;
6728 dv
.minor_version
= DRV_VERSION_MINOR
;
6729 dv
.build_version
= DRV_VERSION_BUILD
;
6730 dv
.subbuild_version
= 0;
6731 strlcpy(dv
.driver_string
, DRV_VERSION
, sizeof(dv
.driver_string
));
6732 i40e_aq_send_driver_version(&pf
->hw
, &dv
, NULL
);
6736 * i40e_reset_and_rebuild - reset and rebuild using a saved config
6737 * @pf: board private structure
6738 * @reinit: if the Main VSI needs to re-initialized.
6740 static void i40e_reset_and_rebuild(struct i40e_pf
*pf
, bool reinit
)
6742 struct i40e_hw
*hw
= &pf
->hw
;
6743 u8 set_fc_aq_fail
= 0;
6748 /* Now we wait for GRST to settle out.
6749 * We don't have to delete the VEBs or VSIs from the hw switch
6750 * because the reset will make them disappear.
6752 ret
= i40e_pf_reset(hw
);
6754 dev_info(&pf
->pdev
->dev
, "PF reset failed, %d\n", ret
);
6755 set_bit(__I40E_RESET_FAILED
, &pf
->state
);
6756 goto clear_recovery
;
6760 if (test_bit(__I40E_DOWN
, &pf
->state
))
6761 goto clear_recovery
;
6762 dev_dbg(&pf
->pdev
->dev
, "Rebuilding internal switch\n");
6764 /* rebuild the basics for the AdminQ, HMC, and initial HW switch */
6765 ret
= i40e_init_adminq(&pf
->hw
);
6767 dev_info(&pf
->pdev
->dev
, "Rebuild AdminQ failed, err %s aq_err %s\n",
6768 i40e_stat_str(&pf
->hw
, ret
),
6769 i40e_aq_str(&pf
->hw
, pf
->hw
.aq
.asq_last_status
));
6770 goto clear_recovery
;
6773 /* re-verify the eeprom if we just had an EMP reset */
6774 if (test_and_clear_bit(__I40E_EMP_RESET_INTR_RECEIVED
, &pf
->state
))
6775 i40e_verify_eeprom(pf
);
6777 i40e_clear_pxe_mode(hw
);
6778 ret
= i40e_get_capabilities(pf
);
6780 goto end_core_reset
;
6782 ret
= i40e_init_lan_hmc(hw
, hw
->func_caps
.num_tx_qp
,
6783 hw
->func_caps
.num_rx_qp
,
6784 pf
->fcoe_hmc_cntx_num
, pf
->fcoe_hmc_filt_num
);
6786 dev_info(&pf
->pdev
->dev
, "init_lan_hmc failed: %d\n", ret
);
6787 goto end_core_reset
;
6789 ret
= i40e_configure_lan_hmc(hw
, I40E_HMC_MODEL_DIRECT_ONLY
);
6791 dev_info(&pf
->pdev
->dev
, "configure_lan_hmc failed: %d\n", ret
);
6792 goto end_core_reset
;
6795 #ifdef CONFIG_I40E_DCB
6796 ret
= i40e_init_pf_dcb(pf
);
6798 dev_info(&pf
->pdev
->dev
, "DCB init failed %d, disabled\n", ret
);
6799 pf
->flags
&= ~I40E_FLAG_DCB_CAPABLE
;
6800 /* Continue without DCB enabled */
6802 #endif /* CONFIG_I40E_DCB */
6804 i40e_init_pf_fcoe(pf
);
6807 /* do basic switch setup */
6808 ret
= i40e_setup_pf_switch(pf
, reinit
);
6810 goto end_core_reset
;
6812 /* The driver only wants link up/down and module qualification
6813 * reports from firmware. Note the negative logic.
6815 ret
= i40e_aq_set_phy_int_mask(&pf
->hw
,
6816 ~(I40E_AQ_EVENT_LINK_UPDOWN
|
6817 I40E_AQ_EVENT_MODULE_QUAL_FAIL
), NULL
);
6819 dev_info(&pf
->pdev
->dev
, "set phy mask fail, err %s aq_err %s\n",
6820 i40e_stat_str(&pf
->hw
, ret
),
6821 i40e_aq_str(&pf
->hw
, pf
->hw
.aq
.asq_last_status
));
6823 /* make sure our flow control settings are restored */
6824 ret
= i40e_set_fc(&pf
->hw
, &set_fc_aq_fail
, true);
6826 dev_dbg(&pf
->pdev
->dev
, "setting flow control: ret = %s last_status = %s\n",
6827 i40e_stat_str(&pf
->hw
, ret
),
6828 i40e_aq_str(&pf
->hw
, pf
->hw
.aq
.asq_last_status
));
6830 /* Rebuild the VSIs and VEBs that existed before reset.
6831 * They are still in our local switch element arrays, so only
6832 * need to rebuild the switch model in the HW.
6834 * If there were VEBs but the reconstitution failed, we'll try
6835 * try to recover minimal use by getting the basic PF VSI working.
6837 if (pf
->vsi
[pf
->lan_vsi
]->uplink_seid
!= pf
->mac_seid
) {
6838 dev_dbg(&pf
->pdev
->dev
, "attempting to rebuild switch\n");
6839 /* find the one VEB connected to the MAC, and find orphans */
6840 for (v
= 0; v
< I40E_MAX_VEB
; v
++) {
6844 if (pf
->veb
[v
]->uplink_seid
== pf
->mac_seid
||
6845 pf
->veb
[v
]->uplink_seid
== 0) {
6846 ret
= i40e_reconstitute_veb(pf
->veb
[v
]);
6851 /* If Main VEB failed, we're in deep doodoo,
6852 * so give up rebuilding the switch and set up
6853 * for minimal rebuild of PF VSI.
6854 * If orphan failed, we'll report the error
6855 * but try to keep going.
6857 if (pf
->veb
[v
]->uplink_seid
== pf
->mac_seid
) {
6858 dev_info(&pf
->pdev
->dev
,
6859 "rebuild of switch failed: %d, will try to set up simple PF connection\n",
6861 pf
->vsi
[pf
->lan_vsi
]->uplink_seid
6864 } else if (pf
->veb
[v
]->uplink_seid
== 0) {
6865 dev_info(&pf
->pdev
->dev
,
6866 "rebuild of orphan VEB failed: %d\n",
6873 if (pf
->vsi
[pf
->lan_vsi
]->uplink_seid
== pf
->mac_seid
) {
6874 dev_dbg(&pf
->pdev
->dev
, "attempting to rebuild PF VSI\n");
6875 /* no VEB, so rebuild only the Main VSI */
6876 ret
= i40e_add_vsi(pf
->vsi
[pf
->lan_vsi
]);
6878 dev_info(&pf
->pdev
->dev
,
6879 "rebuild of Main VSI failed: %d\n", ret
);
6880 goto end_core_reset
;
6884 /* Reconfigure hardware for allowing smaller MSS in the case
6885 * of TSO, so that we avoid the MDD being fired and causing
6886 * a reset in the case of small MSS+TSO.
6888 #define I40E_REG_MSS 0x000E64DC
6889 #define I40E_REG_MSS_MIN_MASK 0x3FF0000
6890 #define I40E_64BYTE_MSS 0x400000
6891 val
= rd32(hw
, I40E_REG_MSS
);
6892 if ((val
& I40E_REG_MSS_MIN_MASK
) > I40E_64BYTE_MSS
) {
6893 val
&= ~I40E_REG_MSS_MIN_MASK
;
6894 val
|= I40E_64BYTE_MSS
;
6895 wr32(hw
, I40E_REG_MSS
, val
);
6898 if (pf
->flags
& I40E_FLAG_RESTART_AUTONEG
) {
6900 ret
= i40e_aq_set_link_restart_an(&pf
->hw
, true, NULL
);
6902 dev_info(&pf
->pdev
->dev
, "link restart failed, err %s aq_err %s\n",
6903 i40e_stat_str(&pf
->hw
, ret
),
6904 i40e_aq_str(&pf
->hw
,
6905 pf
->hw
.aq
.asq_last_status
));
6907 /* reinit the misc interrupt */
6908 if (pf
->flags
& I40E_FLAG_MSIX_ENABLED
)
6909 ret
= i40e_setup_misc_vector(pf
);
6911 /* Add a filter to drop all Flow control frames from any VSI from being
6912 * transmitted. By doing so we stop a malicious VF from sending out
6913 * PAUSE or PFC frames and potentially controlling traffic for other
6915 * The FW can still send Flow control frames if enabled.
6917 i40e_add_filter_to_drop_tx_flow_control_frames(&pf
->hw
,
6920 /* restart the VSIs that were rebuilt and running before the reset */
6921 i40e_pf_unquiesce_all_vsi(pf
);
6923 if (pf
->num_alloc_vfs
) {
6924 for (v
= 0; v
< pf
->num_alloc_vfs
; v
++)
6925 i40e_reset_vf(&pf
->vf
[v
], true);
6928 /* tell the firmware that we're starting */
6929 i40e_send_version(pf
);
6932 clear_bit(__I40E_RESET_FAILED
, &pf
->state
);
6934 clear_bit(__I40E_RESET_RECOVERY_PENDING
, &pf
->state
);
6938 * i40e_handle_reset_warning - prep for the PF to reset, reset and rebuild
6939 * @pf: board private structure
6941 * Close up the VFs and other things in prep for a Core Reset,
6942 * then get ready to rebuild the world.
6944 static void i40e_handle_reset_warning(struct i40e_pf
*pf
)
6946 i40e_prep_for_reset(pf
);
6947 i40e_reset_and_rebuild(pf
, false);
6951 * i40e_handle_mdd_event
6952 * @pf: pointer to the PF structure
6954 * Called from the MDD irq handler to identify possibly malicious vfs
6956 static void i40e_handle_mdd_event(struct i40e_pf
*pf
)
6958 struct i40e_hw
*hw
= &pf
->hw
;
6959 bool mdd_detected
= false;
6960 bool pf_mdd_detected
= false;
6965 if (!test_bit(__I40E_MDD_EVENT_PENDING
, &pf
->state
))
6968 /* find what triggered the MDD event */
6969 reg
= rd32(hw
, I40E_GL_MDET_TX
);
6970 if (reg
& I40E_GL_MDET_TX_VALID_MASK
) {
6971 u8 pf_num
= (reg
& I40E_GL_MDET_TX_PF_NUM_MASK
) >>
6972 I40E_GL_MDET_TX_PF_NUM_SHIFT
;
6973 u16 vf_num
= (reg
& I40E_GL_MDET_TX_VF_NUM_MASK
) >>
6974 I40E_GL_MDET_TX_VF_NUM_SHIFT
;
6975 u8 event
= (reg
& I40E_GL_MDET_TX_EVENT_MASK
) >>
6976 I40E_GL_MDET_TX_EVENT_SHIFT
;
6977 u16 queue
= ((reg
& I40E_GL_MDET_TX_QUEUE_MASK
) >>
6978 I40E_GL_MDET_TX_QUEUE_SHIFT
) -
6979 pf
->hw
.func_caps
.base_queue
;
6980 if (netif_msg_tx_err(pf
))
6981 dev_info(&pf
->pdev
->dev
, "Malicious Driver Detection event 0x%02x on TX queue %d PF number 0x%02x VF number 0x%02x\n",
6982 event
, queue
, pf_num
, vf_num
);
6983 wr32(hw
, I40E_GL_MDET_TX
, 0xffffffff);
6984 mdd_detected
= true;
6986 reg
= rd32(hw
, I40E_GL_MDET_RX
);
6987 if (reg
& I40E_GL_MDET_RX_VALID_MASK
) {
6988 u8 func
= (reg
& I40E_GL_MDET_RX_FUNCTION_MASK
) >>
6989 I40E_GL_MDET_RX_FUNCTION_SHIFT
;
6990 u8 event
= (reg
& I40E_GL_MDET_RX_EVENT_MASK
) >>
6991 I40E_GL_MDET_RX_EVENT_SHIFT
;
6992 u16 queue
= ((reg
& I40E_GL_MDET_RX_QUEUE_MASK
) >>
6993 I40E_GL_MDET_RX_QUEUE_SHIFT
) -
6994 pf
->hw
.func_caps
.base_queue
;
6995 if (netif_msg_rx_err(pf
))
6996 dev_info(&pf
->pdev
->dev
, "Malicious Driver Detection event 0x%02x on RX queue %d of function 0x%02x\n",
6997 event
, queue
, func
);
6998 wr32(hw
, I40E_GL_MDET_RX
, 0xffffffff);
6999 mdd_detected
= true;
7003 reg
= rd32(hw
, I40E_PF_MDET_TX
);
7004 if (reg
& I40E_PF_MDET_TX_VALID_MASK
) {
7005 wr32(hw
, I40E_PF_MDET_TX
, 0xFFFF);
7006 dev_info(&pf
->pdev
->dev
, "TX driver issue detected, PF reset issued\n");
7007 pf_mdd_detected
= true;
7009 reg
= rd32(hw
, I40E_PF_MDET_RX
);
7010 if (reg
& I40E_PF_MDET_RX_VALID_MASK
) {
7011 wr32(hw
, I40E_PF_MDET_RX
, 0xFFFF);
7012 dev_info(&pf
->pdev
->dev
, "RX driver issue detected, PF reset issued\n");
7013 pf_mdd_detected
= true;
7015 /* Queue belongs to the PF, initiate a reset */
7016 if (pf_mdd_detected
) {
7017 set_bit(__I40E_PF_RESET_REQUESTED
, &pf
->state
);
7018 i40e_service_event_schedule(pf
);
7022 /* see if one of the VFs needs its hand slapped */
7023 for (i
= 0; i
< pf
->num_alloc_vfs
&& mdd_detected
; i
++) {
7025 reg
= rd32(hw
, I40E_VP_MDET_TX(i
));
7026 if (reg
& I40E_VP_MDET_TX_VALID_MASK
) {
7027 wr32(hw
, I40E_VP_MDET_TX(i
), 0xFFFF);
7028 vf
->num_mdd_events
++;
7029 dev_info(&pf
->pdev
->dev
, "TX driver issue detected on VF %d\n",
7033 reg
= rd32(hw
, I40E_VP_MDET_RX(i
));
7034 if (reg
& I40E_VP_MDET_RX_VALID_MASK
) {
7035 wr32(hw
, I40E_VP_MDET_RX(i
), 0xFFFF);
7036 vf
->num_mdd_events
++;
7037 dev_info(&pf
->pdev
->dev
, "RX driver issue detected on VF %d\n",
7041 if (vf
->num_mdd_events
> I40E_DEFAULT_NUM_MDD_EVENTS_ALLOWED
) {
7042 dev_info(&pf
->pdev
->dev
,
7043 "Too many MDD events on VF %d, disabled\n", i
);
7044 dev_info(&pf
->pdev
->dev
,
7045 "Use PF Control I/F to re-enable the VF\n");
7046 set_bit(I40E_VF_STAT_DISABLED
, &vf
->vf_states
);
7050 /* re-enable mdd interrupt cause */
7051 clear_bit(__I40E_MDD_EVENT_PENDING
, &pf
->state
);
7052 reg
= rd32(hw
, I40E_PFINT_ICR0_ENA
);
7053 reg
|= I40E_PFINT_ICR0_ENA_MAL_DETECT_MASK
;
7054 wr32(hw
, I40E_PFINT_ICR0_ENA
, reg
);
7059 * i40e_sync_udp_filters_subtask - Sync the VSI filter list with HW
7060 * @pf: board private structure
7062 static void i40e_sync_udp_filters_subtask(struct i40e_pf
*pf
)
7064 #if IS_ENABLED(CONFIG_VXLAN) || IS_ENABLED(CONFIG_GENEVE)
7065 struct i40e_hw
*hw
= &pf
->hw
;
7070 if (!(pf
->flags
& I40E_FLAG_UDP_FILTER_SYNC
))
7073 pf
->flags
&= ~I40E_FLAG_UDP_FILTER_SYNC
;
7075 for (i
= 0; i
< I40E_MAX_PF_UDP_OFFLOAD_PORTS
; i
++) {
7076 if (pf
->pending_udp_bitmap
& BIT_ULL(i
)) {
7077 pf
->pending_udp_bitmap
&= ~BIT_ULL(i
);
7078 port
= pf
->udp_ports
[i
].index
;
7080 ret
= i40e_aq_add_udp_tunnel(hw
, ntohs(port
),
7081 pf
->udp_ports
[i
].type
,
7084 ret
= i40e_aq_del_udp_tunnel(hw
, i
, NULL
);
7087 dev_info(&pf
->pdev
->dev
,
7088 "%s vxlan port %d, index %d failed, err %s aq_err %s\n",
7089 port
? "add" : "delete",
7091 i40e_stat_str(&pf
->hw
, ret
),
7092 i40e_aq_str(&pf
->hw
,
7093 pf
->hw
.aq
.asq_last_status
));
7094 pf
->udp_ports
[i
].index
= 0;
7102 * i40e_service_task - Run the driver's async subtasks
7103 * @work: pointer to work_struct containing our data
7105 static void i40e_service_task(struct work_struct
*work
)
7107 struct i40e_pf
*pf
= container_of(work
,
7110 unsigned long start_time
= jiffies
;
7112 /* don't bother with service tasks if a reset is in progress */
7113 if (test_bit(__I40E_RESET_RECOVERY_PENDING
, &pf
->state
)) {
7114 i40e_service_event_complete(pf
);
7118 i40e_detect_recover_hung(pf
);
7119 i40e_sync_filters_subtask(pf
);
7120 i40e_reset_subtask(pf
);
7121 i40e_handle_mdd_event(pf
);
7122 i40e_vc_process_vflr_event(pf
);
7123 i40e_watchdog_subtask(pf
);
7124 i40e_fdir_reinit_subtask(pf
);
7125 i40e_sync_filters_subtask(pf
);
7126 i40e_sync_udp_filters_subtask(pf
);
7127 i40e_clean_adminq_subtask(pf
);
7129 i40e_service_event_complete(pf
);
7131 /* If the tasks have taken longer than one timer cycle or there
7132 * is more work to be done, reschedule the service task now
7133 * rather than wait for the timer to tick again.
7135 if (time_after(jiffies
, (start_time
+ pf
->service_timer_period
)) ||
7136 test_bit(__I40E_ADMINQ_EVENT_PENDING
, &pf
->state
) ||
7137 test_bit(__I40E_MDD_EVENT_PENDING
, &pf
->state
) ||
7138 test_bit(__I40E_VFLR_EVENT_PENDING
, &pf
->state
))
7139 i40e_service_event_schedule(pf
);
7143 * i40e_service_timer - timer callback
7144 * @data: pointer to PF struct
7146 static void i40e_service_timer(unsigned long data
)
7148 struct i40e_pf
*pf
= (struct i40e_pf
*)data
;
7150 mod_timer(&pf
->service_timer
,
7151 round_jiffies(jiffies
+ pf
->service_timer_period
));
7152 i40e_service_event_schedule(pf
);
7156 * i40e_set_num_rings_in_vsi - Determine number of rings in the VSI
7157 * @vsi: the VSI being configured
7159 static int i40e_set_num_rings_in_vsi(struct i40e_vsi
*vsi
)
7161 struct i40e_pf
*pf
= vsi
->back
;
7163 switch (vsi
->type
) {
7165 vsi
->alloc_queue_pairs
= pf
->num_lan_qps
;
7166 vsi
->num_desc
= ALIGN(I40E_DEFAULT_NUM_DESCRIPTORS
,
7167 I40E_REQ_DESCRIPTOR_MULTIPLE
);
7168 if (pf
->flags
& I40E_FLAG_MSIX_ENABLED
)
7169 vsi
->num_q_vectors
= pf
->num_lan_msix
;
7171 vsi
->num_q_vectors
= 1;
7176 vsi
->alloc_queue_pairs
= 1;
7177 vsi
->num_desc
= ALIGN(I40E_FDIR_RING_COUNT
,
7178 I40E_REQ_DESCRIPTOR_MULTIPLE
);
7179 vsi
->num_q_vectors
= 1;
7182 case I40E_VSI_VMDQ2
:
7183 vsi
->alloc_queue_pairs
= pf
->num_vmdq_qps
;
7184 vsi
->num_desc
= ALIGN(I40E_DEFAULT_NUM_DESCRIPTORS
,
7185 I40E_REQ_DESCRIPTOR_MULTIPLE
);
7186 vsi
->num_q_vectors
= pf
->num_vmdq_msix
;
7189 case I40E_VSI_SRIOV
:
7190 vsi
->alloc_queue_pairs
= pf
->num_vf_qps
;
7191 vsi
->num_desc
= ALIGN(I40E_DEFAULT_NUM_DESCRIPTORS
,
7192 I40E_REQ_DESCRIPTOR_MULTIPLE
);
7197 vsi
->alloc_queue_pairs
= pf
->num_fcoe_qps
;
7198 vsi
->num_desc
= ALIGN(I40E_DEFAULT_NUM_DESCRIPTORS
,
7199 I40E_REQ_DESCRIPTOR_MULTIPLE
);
7200 vsi
->num_q_vectors
= pf
->num_fcoe_msix
;
7203 #endif /* I40E_FCOE */
7213 * i40e_vsi_alloc_arrays - Allocate queue and vector pointer arrays for the vsi
7214 * @type: VSI pointer
7215 * @alloc_qvectors: a bool to specify if q_vectors need to be allocated.
7217 * On error: returns error code (negative)
7218 * On success: returns 0
7220 static int i40e_vsi_alloc_arrays(struct i40e_vsi
*vsi
, bool alloc_qvectors
)
7225 /* allocate memory for both Tx and Rx ring pointers */
7226 size
= sizeof(struct i40e_ring
*) * vsi
->alloc_queue_pairs
* 2;
7227 vsi
->tx_rings
= kzalloc(size
, GFP_KERNEL
);
7230 vsi
->rx_rings
= &vsi
->tx_rings
[vsi
->alloc_queue_pairs
];
7232 if (alloc_qvectors
) {
7233 /* allocate memory for q_vector pointers */
7234 size
= sizeof(struct i40e_q_vector
*) * vsi
->num_q_vectors
;
7235 vsi
->q_vectors
= kzalloc(size
, GFP_KERNEL
);
7236 if (!vsi
->q_vectors
) {
7244 kfree(vsi
->tx_rings
);
7249 * i40e_vsi_mem_alloc - Allocates the next available struct vsi in the PF
7250 * @pf: board private structure
7251 * @type: type of VSI
7253 * On error: returns error code (negative)
7254 * On success: returns vsi index in PF (positive)
7256 static int i40e_vsi_mem_alloc(struct i40e_pf
*pf
, enum i40e_vsi_type type
)
7259 struct i40e_vsi
*vsi
;
7263 /* Need to protect the allocation of the VSIs at the PF level */
7264 mutex_lock(&pf
->switch_mutex
);
7266 /* VSI list may be fragmented if VSI creation/destruction has
7267 * been happening. We can afford to do a quick scan to look
7268 * for any free VSIs in the list.
7270 * find next empty vsi slot, looping back around if necessary
7273 while (i
< pf
->num_alloc_vsi
&& pf
->vsi
[i
])
7275 if (i
>= pf
->num_alloc_vsi
) {
7277 while (i
< pf
->next_vsi
&& pf
->vsi
[i
])
7281 if (i
< pf
->num_alloc_vsi
&& !pf
->vsi
[i
]) {
7282 vsi_idx
= i
; /* Found one! */
7285 goto unlock_pf
; /* out of VSI slots! */
7289 vsi
= kzalloc(sizeof(*vsi
), GFP_KERNEL
);
7296 set_bit(__I40E_DOWN
, &vsi
->state
);
7299 vsi
->rx_itr_setting
= pf
->rx_itr_default
;
7300 vsi
->tx_itr_setting
= pf
->tx_itr_default
;
7301 vsi
->int_rate_limit
= 0;
7302 vsi
->rss_table_size
= (vsi
->type
== I40E_VSI_MAIN
) ?
7303 pf
->rss_table_size
: 64;
7304 vsi
->netdev_registered
= false;
7305 vsi
->work_limit
= I40E_DEFAULT_IRQ_WORK
;
7306 INIT_LIST_HEAD(&vsi
->mac_filter_list
);
7307 vsi
->irqs_ready
= false;
7309 ret
= i40e_set_num_rings_in_vsi(vsi
);
7313 ret
= i40e_vsi_alloc_arrays(vsi
, true);
7317 /* Setup default MSIX irq handler for VSI */
7318 i40e_vsi_setup_irqhandler(vsi
, i40e_msix_clean_rings
);
7320 /* Initialize VSI lock */
7321 spin_lock_init(&vsi
->mac_filter_list_lock
);
7322 pf
->vsi
[vsi_idx
] = vsi
;
7327 pf
->next_vsi
= i
- 1;
7330 mutex_unlock(&pf
->switch_mutex
);
7335 * i40e_vsi_free_arrays - Free queue and vector pointer arrays for the VSI
7336 * @type: VSI pointer
7337 * @free_qvectors: a bool to specify if q_vectors need to be freed.
7339 * On error: returns error code (negative)
7340 * On success: returns 0
7342 static void i40e_vsi_free_arrays(struct i40e_vsi
*vsi
, bool free_qvectors
)
7344 /* free the ring and vector containers */
7345 if (free_qvectors
) {
7346 kfree(vsi
->q_vectors
);
7347 vsi
->q_vectors
= NULL
;
7349 kfree(vsi
->tx_rings
);
7350 vsi
->tx_rings
= NULL
;
7351 vsi
->rx_rings
= NULL
;
7355 * i40e_clear_rss_config_user - clear the user configured RSS hash keys
7357 * @vsi: Pointer to VSI structure
7359 static void i40e_clear_rss_config_user(struct i40e_vsi
*vsi
)
7364 kfree(vsi
->rss_hkey_user
);
7365 vsi
->rss_hkey_user
= NULL
;
7367 kfree(vsi
->rss_lut_user
);
7368 vsi
->rss_lut_user
= NULL
;
7372 * i40e_vsi_clear - Deallocate the VSI provided
7373 * @vsi: the VSI being un-configured
7375 static int i40e_vsi_clear(struct i40e_vsi
*vsi
)
7386 mutex_lock(&pf
->switch_mutex
);
7387 if (!pf
->vsi
[vsi
->idx
]) {
7388 dev_err(&pf
->pdev
->dev
, "pf->vsi[%d] is NULL, just free vsi[%d](%p,type %d)\n",
7389 vsi
->idx
, vsi
->idx
, vsi
, vsi
->type
);
7393 if (pf
->vsi
[vsi
->idx
] != vsi
) {
7394 dev_err(&pf
->pdev
->dev
,
7395 "pf->vsi[%d](%p, type %d) != vsi[%d](%p,type %d): no free!\n",
7396 pf
->vsi
[vsi
->idx
]->idx
,
7398 pf
->vsi
[vsi
->idx
]->type
,
7399 vsi
->idx
, vsi
, vsi
->type
);
7403 /* updates the PF for this cleared vsi */
7404 i40e_put_lump(pf
->qp_pile
, vsi
->base_queue
, vsi
->idx
);
7405 i40e_put_lump(pf
->irq_pile
, vsi
->base_vector
, vsi
->idx
);
7407 i40e_vsi_free_arrays(vsi
, true);
7408 i40e_clear_rss_config_user(vsi
);
7410 pf
->vsi
[vsi
->idx
] = NULL
;
7411 if (vsi
->idx
< pf
->next_vsi
)
7412 pf
->next_vsi
= vsi
->idx
;
7415 mutex_unlock(&pf
->switch_mutex
);
7423 * i40e_vsi_clear_rings - Deallocates the Rx and Tx rings for the provided VSI
7424 * @vsi: the VSI being cleaned
7426 static void i40e_vsi_clear_rings(struct i40e_vsi
*vsi
)
7430 if (vsi
->tx_rings
&& vsi
->tx_rings
[0]) {
7431 for (i
= 0; i
< vsi
->alloc_queue_pairs
; i
++) {
7432 kfree_rcu(vsi
->tx_rings
[i
], rcu
);
7433 vsi
->tx_rings
[i
] = NULL
;
7434 vsi
->rx_rings
[i
] = NULL
;
7440 * i40e_alloc_rings - Allocates the Rx and Tx rings for the provided VSI
7441 * @vsi: the VSI being configured
7443 static int i40e_alloc_rings(struct i40e_vsi
*vsi
)
7445 struct i40e_ring
*tx_ring
, *rx_ring
;
7446 struct i40e_pf
*pf
= vsi
->back
;
7449 /* Set basic values in the rings to be used later during open() */
7450 for (i
= 0; i
< vsi
->alloc_queue_pairs
; i
++) {
7451 /* allocate space for both Tx and Rx in one shot */
7452 tx_ring
= kzalloc(sizeof(struct i40e_ring
) * 2, GFP_KERNEL
);
7456 tx_ring
->queue_index
= i
;
7457 tx_ring
->reg_idx
= vsi
->base_queue
+ i
;
7458 tx_ring
->ring_active
= false;
7460 tx_ring
->netdev
= vsi
->netdev
;
7461 tx_ring
->dev
= &pf
->pdev
->dev
;
7462 tx_ring
->count
= vsi
->num_desc
;
7464 tx_ring
->dcb_tc
= 0;
7465 if (vsi
->back
->flags
& I40E_FLAG_WB_ON_ITR_CAPABLE
)
7466 tx_ring
->flags
= I40E_TXR_FLAGS_WB_ON_ITR
;
7467 if (vsi
->back
->flags
& I40E_FLAG_OUTER_UDP_CSUM_CAPABLE
)
7468 tx_ring
->flags
|= I40E_TXR_FLAGS_OUTER_UDP_CSUM
;
7469 vsi
->tx_rings
[i
] = tx_ring
;
7471 rx_ring
= &tx_ring
[1];
7472 rx_ring
->queue_index
= i
;
7473 rx_ring
->reg_idx
= vsi
->base_queue
+ i
;
7474 rx_ring
->ring_active
= false;
7476 rx_ring
->netdev
= vsi
->netdev
;
7477 rx_ring
->dev
= &pf
->pdev
->dev
;
7478 rx_ring
->count
= vsi
->num_desc
;
7480 rx_ring
->dcb_tc
= 0;
7481 if (pf
->flags
& I40E_FLAG_16BYTE_RX_DESC_ENABLED
)
7482 set_ring_16byte_desc_enabled(rx_ring
);
7484 clear_ring_16byte_desc_enabled(rx_ring
);
7485 vsi
->rx_rings
[i
] = rx_ring
;
7491 i40e_vsi_clear_rings(vsi
);
7496 * i40e_reserve_msix_vectors - Reserve MSI-X vectors in the kernel
7497 * @pf: board private structure
7498 * @vectors: the number of MSI-X vectors to request
7500 * Returns the number of vectors reserved, or error
7502 static int i40e_reserve_msix_vectors(struct i40e_pf
*pf
, int vectors
)
7504 vectors
= pci_enable_msix_range(pf
->pdev
, pf
->msix_entries
,
7505 I40E_MIN_MSIX
, vectors
);
7507 dev_info(&pf
->pdev
->dev
,
7508 "MSI-X vector reservation failed: %d\n", vectors
);
7516 * i40e_init_msix - Setup the MSIX capability
7517 * @pf: board private structure
7519 * Work with the OS to set up the MSIX vectors needed.
7521 * Returns the number of vectors reserved or negative on failure
7523 static int i40e_init_msix(struct i40e_pf
*pf
)
7525 struct i40e_hw
*hw
= &pf
->hw
;
7530 if (!(pf
->flags
& I40E_FLAG_MSIX_ENABLED
))
7533 /* The number of vectors we'll request will be comprised of:
7534 * - Add 1 for "other" cause for Admin Queue events, etc.
7535 * - The number of LAN queue pairs
7536 * - Queues being used for RSS.
7537 * We don't need as many as max_rss_size vectors.
7538 * use rss_size instead in the calculation since that
7539 * is governed by number of cpus in the system.
7540 * - assumes symmetric Tx/Rx pairing
7541 * - The number of VMDq pairs
7543 * - The number of FCOE qps.
7545 * Once we count this up, try the request.
7547 * If we can't get what we want, we'll simplify to nearly nothing
7548 * and try again. If that still fails, we punt.
7550 vectors_left
= hw
->func_caps
.num_msix_vectors
;
7553 /* reserve one vector for miscellaneous handler */
7559 /* reserve vectors for the main PF traffic queues */
7560 pf
->num_lan_msix
= min_t(int, num_online_cpus(), vectors_left
);
7561 vectors_left
-= pf
->num_lan_msix
;
7562 v_budget
+= pf
->num_lan_msix
;
7564 /* reserve one vector for sideband flow director */
7565 if (pf
->flags
& I40E_FLAG_FD_SB_ENABLED
) {
7570 pf
->flags
&= ~I40E_FLAG_FD_SB_ENABLED
;
7575 /* can we reserve enough for FCoE? */
7576 if (pf
->flags
& I40E_FLAG_FCOE_ENABLED
) {
7578 pf
->num_fcoe_msix
= 0;
7579 else if (vectors_left
>= pf
->num_fcoe_qps
)
7580 pf
->num_fcoe_msix
= pf
->num_fcoe_qps
;
7582 pf
->num_fcoe_msix
= 1;
7583 v_budget
+= pf
->num_fcoe_msix
;
7584 vectors_left
-= pf
->num_fcoe_msix
;
7588 /* any vectors left over go for VMDq support */
7589 if (pf
->flags
& I40E_FLAG_VMDQ_ENABLED
) {
7590 int vmdq_vecs_wanted
= pf
->num_vmdq_vsis
* pf
->num_vmdq_qps
;
7591 int vmdq_vecs
= min_t(int, vectors_left
, vmdq_vecs_wanted
);
7593 /* if we're short on vectors for what's desired, we limit
7594 * the queues per vmdq. If this is still more than are
7595 * available, the user will need to change the number of
7596 * queues/vectors used by the PF later with the ethtool
7599 if (vmdq_vecs
< vmdq_vecs_wanted
)
7600 pf
->num_vmdq_qps
= 1;
7601 pf
->num_vmdq_msix
= pf
->num_vmdq_qps
;
7603 v_budget
+= vmdq_vecs
;
7604 vectors_left
-= vmdq_vecs
;
7607 pf
->msix_entries
= kcalloc(v_budget
, sizeof(struct msix_entry
),
7609 if (!pf
->msix_entries
)
7612 for (i
= 0; i
< v_budget
; i
++)
7613 pf
->msix_entries
[i
].entry
= i
;
7614 v_actual
= i40e_reserve_msix_vectors(pf
, v_budget
);
7616 if (v_actual
!= v_budget
) {
7617 /* If we have limited resources, we will start with no vectors
7618 * for the special features and then allocate vectors to some
7619 * of these features based on the policy and at the end disable
7620 * the features that did not get any vectors.
7623 pf
->num_fcoe_qps
= 0;
7624 pf
->num_fcoe_msix
= 0;
7626 pf
->num_vmdq_msix
= 0;
7629 if (v_actual
< I40E_MIN_MSIX
) {
7630 pf
->flags
&= ~I40E_FLAG_MSIX_ENABLED
;
7631 kfree(pf
->msix_entries
);
7632 pf
->msix_entries
= NULL
;
7635 } else if (v_actual
== I40E_MIN_MSIX
) {
7636 /* Adjust for minimal MSIX use */
7637 pf
->num_vmdq_vsis
= 0;
7638 pf
->num_vmdq_qps
= 0;
7639 pf
->num_lan_qps
= 1;
7640 pf
->num_lan_msix
= 1;
7642 } else if (v_actual
!= v_budget
) {
7645 /* reserve the misc vector */
7648 /* Scale vector usage down */
7649 pf
->num_vmdq_msix
= 1; /* force VMDqs to only one vector */
7650 pf
->num_vmdq_vsis
= 1;
7651 pf
->num_vmdq_qps
= 1;
7652 pf
->flags
&= ~I40E_FLAG_FD_SB_ENABLED
;
7654 /* partition out the remaining vectors */
7657 pf
->num_lan_msix
= 1;
7661 /* give one vector to FCoE */
7662 if (pf
->flags
& I40E_FLAG_FCOE_ENABLED
) {
7663 pf
->num_lan_msix
= 1;
7664 pf
->num_fcoe_msix
= 1;
7667 pf
->num_lan_msix
= 2;
7672 /* give one vector to FCoE */
7673 if (pf
->flags
& I40E_FLAG_FCOE_ENABLED
) {
7674 pf
->num_fcoe_msix
= 1;
7678 /* give the rest to the PF */
7679 pf
->num_lan_msix
= min_t(int, vec
, pf
->num_lan_qps
);
7684 if ((pf
->flags
& I40E_FLAG_VMDQ_ENABLED
) &&
7685 (pf
->num_vmdq_msix
== 0)) {
7686 dev_info(&pf
->pdev
->dev
, "VMDq disabled, not enough MSI-X vectors\n");
7687 pf
->flags
&= ~I40E_FLAG_VMDQ_ENABLED
;
7691 if ((pf
->flags
& I40E_FLAG_FCOE_ENABLED
) && (pf
->num_fcoe_msix
== 0)) {
7692 dev_info(&pf
->pdev
->dev
, "FCOE disabled, not enough MSI-X vectors\n");
7693 pf
->flags
&= ~I40E_FLAG_FCOE_ENABLED
;
7700 * i40e_vsi_alloc_q_vector - Allocate memory for a single interrupt vector
7701 * @vsi: the VSI being configured
7702 * @v_idx: index of the vector in the vsi struct
7704 * We allocate one q_vector. If allocation fails we return -ENOMEM.
7706 static int i40e_vsi_alloc_q_vector(struct i40e_vsi
*vsi
, int v_idx
)
7708 struct i40e_q_vector
*q_vector
;
7710 /* allocate q_vector */
7711 q_vector
= kzalloc(sizeof(struct i40e_q_vector
), GFP_KERNEL
);
7715 q_vector
->vsi
= vsi
;
7716 q_vector
->v_idx
= v_idx
;
7717 cpumask_set_cpu(v_idx
, &q_vector
->affinity_mask
);
7719 netif_napi_add(vsi
->netdev
, &q_vector
->napi
,
7720 i40e_napi_poll
, NAPI_POLL_WEIGHT
);
7722 q_vector
->rx
.latency_range
= I40E_LOW_LATENCY
;
7723 q_vector
->tx
.latency_range
= I40E_LOW_LATENCY
;
7725 /* tie q_vector and vsi together */
7726 vsi
->q_vectors
[v_idx
] = q_vector
;
7732 * i40e_vsi_alloc_q_vectors - Allocate memory for interrupt vectors
7733 * @vsi: the VSI being configured
7735 * We allocate one q_vector per queue interrupt. If allocation fails we
7738 static int i40e_vsi_alloc_q_vectors(struct i40e_vsi
*vsi
)
7740 struct i40e_pf
*pf
= vsi
->back
;
7741 int v_idx
, num_q_vectors
;
7744 /* if not MSIX, give the one vector only to the LAN VSI */
7745 if (pf
->flags
& I40E_FLAG_MSIX_ENABLED
)
7746 num_q_vectors
= vsi
->num_q_vectors
;
7747 else if (vsi
== pf
->vsi
[pf
->lan_vsi
])
7752 for (v_idx
= 0; v_idx
< num_q_vectors
; v_idx
++) {
7753 err
= i40e_vsi_alloc_q_vector(vsi
, v_idx
);
7762 i40e_free_q_vector(vsi
, v_idx
);
7768 * i40e_init_interrupt_scheme - Determine proper interrupt scheme
7769 * @pf: board private structure to initialize
7771 static int i40e_init_interrupt_scheme(struct i40e_pf
*pf
)
7776 if (pf
->flags
& I40E_FLAG_MSIX_ENABLED
) {
7777 vectors
= i40e_init_msix(pf
);
7779 pf
->flags
&= ~(I40E_FLAG_MSIX_ENABLED
|
7781 I40E_FLAG_FCOE_ENABLED
|
7783 I40E_FLAG_RSS_ENABLED
|
7784 I40E_FLAG_DCB_CAPABLE
|
7785 I40E_FLAG_SRIOV_ENABLED
|
7786 I40E_FLAG_FD_SB_ENABLED
|
7787 I40E_FLAG_FD_ATR_ENABLED
|
7788 I40E_FLAG_VMDQ_ENABLED
);
7790 /* rework the queue expectations without MSIX */
7791 i40e_determine_queue_usage(pf
);
7795 if (!(pf
->flags
& I40E_FLAG_MSIX_ENABLED
) &&
7796 (pf
->flags
& I40E_FLAG_MSI_ENABLED
)) {
7797 dev_info(&pf
->pdev
->dev
, "MSI-X not available, trying MSI\n");
7798 vectors
= pci_enable_msi(pf
->pdev
);
7800 dev_info(&pf
->pdev
->dev
, "MSI init failed - %d\n",
7802 pf
->flags
&= ~I40E_FLAG_MSI_ENABLED
;
7804 vectors
= 1; /* one MSI or Legacy vector */
7807 if (!(pf
->flags
& (I40E_FLAG_MSIX_ENABLED
| I40E_FLAG_MSI_ENABLED
)))
7808 dev_info(&pf
->pdev
->dev
, "MSI-X and MSI not available, falling back to Legacy IRQ\n");
7810 /* set up vector assignment tracking */
7811 size
= sizeof(struct i40e_lump_tracking
) + (sizeof(u16
) * vectors
);
7812 pf
->irq_pile
= kzalloc(size
, GFP_KERNEL
);
7813 if (!pf
->irq_pile
) {
7814 dev_err(&pf
->pdev
->dev
, "error allocating irq_pile memory\n");
7817 pf
->irq_pile
->num_entries
= vectors
;
7818 pf
->irq_pile
->search_hint
= 0;
7820 /* track first vector for misc interrupts, ignore return */
7821 (void)i40e_get_lump(pf
, pf
->irq_pile
, 1, I40E_PILE_VALID_BIT
- 1);
7827 * i40e_setup_misc_vector - Setup the misc vector to handle non queue events
7828 * @pf: board private structure
7830 * This sets up the handler for MSIX 0, which is used to manage the
7831 * non-queue interrupts, e.g. AdminQ and errors. This is not used
7832 * when in MSI or Legacy interrupt mode.
7834 static int i40e_setup_misc_vector(struct i40e_pf
*pf
)
7836 struct i40e_hw
*hw
= &pf
->hw
;
7839 /* Only request the irq if this is the first time through, and
7840 * not when we're rebuilding after a Reset
7842 if (!test_bit(__I40E_RESET_RECOVERY_PENDING
, &pf
->state
)) {
7843 err
= request_irq(pf
->msix_entries
[0].vector
,
7844 i40e_intr
, 0, pf
->int_name
, pf
);
7846 dev_info(&pf
->pdev
->dev
,
7847 "request_irq for %s failed: %d\n",
7853 i40e_enable_misc_int_causes(pf
);
7855 /* associate no queues to the misc vector */
7856 wr32(hw
, I40E_PFINT_LNKLST0
, I40E_QUEUE_END_OF_LIST
);
7857 wr32(hw
, I40E_PFINT_ITR0(I40E_RX_ITR
), I40E_ITR_8K
);
7861 i40e_irq_dynamic_enable_icr0(pf
);
7867 * i40e_config_rss_aq - Prepare for RSS using AQ commands
7868 * @vsi: vsi structure
7869 * @seed: RSS hash seed
7871 static int i40e_config_rss_aq(struct i40e_vsi
*vsi
, const u8
*seed
,
7872 u8
*lut
, u16 lut_size
)
7874 struct i40e_aqc_get_set_rss_key_data rss_key
;
7875 struct i40e_pf
*pf
= vsi
->back
;
7876 struct i40e_hw
*hw
= &pf
->hw
;
7877 bool pf_lut
= false;
7881 memset(&rss_key
, 0, sizeof(rss_key
));
7882 memcpy(&rss_key
, seed
, sizeof(rss_key
));
7884 rss_lut
= kzalloc(pf
->rss_table_size
, GFP_KERNEL
);
7888 /* Populate the LUT with max no. of queues in round robin fashion */
7889 for (i
= 0; i
< vsi
->rss_table_size
; i
++)
7890 rss_lut
[i
] = i
% vsi
->rss_size
;
7892 ret
= i40e_aq_set_rss_key(hw
, vsi
->id
, &rss_key
);
7894 dev_info(&pf
->pdev
->dev
,
7895 "Cannot set RSS key, err %s aq_err %s\n",
7896 i40e_stat_str(&pf
->hw
, ret
),
7897 i40e_aq_str(&pf
->hw
, pf
->hw
.aq
.asq_last_status
));
7898 goto config_rss_aq_out
;
7901 if (vsi
->type
== I40E_VSI_MAIN
)
7904 ret
= i40e_aq_set_rss_lut(hw
, vsi
->id
, pf_lut
, rss_lut
,
7905 vsi
->rss_table_size
);
7907 dev_info(&pf
->pdev
->dev
,
7908 "Cannot set RSS lut, err %s aq_err %s\n",
7909 i40e_stat_str(&pf
->hw
, ret
),
7910 i40e_aq_str(&pf
->hw
, pf
->hw
.aq
.asq_last_status
));
7918 * i40e_vsi_config_rss - Prepare for VSI(VMDq) RSS if used
7919 * @vsi: VSI structure
7921 static int i40e_vsi_config_rss(struct i40e_vsi
*vsi
)
7923 u8 seed
[I40E_HKEY_ARRAY_SIZE
];
7924 struct i40e_pf
*pf
= vsi
->back
;
7928 if (!(pf
->flags
& I40E_FLAG_RSS_AQ_CAPABLE
))
7931 lut
= kzalloc(vsi
->rss_table_size
, GFP_KERNEL
);
7935 i40e_fill_rss_lut(pf
, lut
, vsi
->rss_table_size
, vsi
->rss_size
);
7936 netdev_rss_key_fill((void *)seed
, I40E_HKEY_ARRAY_SIZE
);
7937 vsi
->rss_size
= min_t(int, pf
->alloc_rss_size
, vsi
->num_queue_pairs
);
7938 ret
= i40e_config_rss_aq(vsi
, seed
, lut
, vsi
->rss_table_size
);
7945 * i40e_get_rss_aq - Get RSS keys and lut by using AQ commands
7946 * @vsi: Pointer to vsi structure
7947 * @seed: Buffter to store the hash keys
7948 * @lut: Buffer to store the lookup table entries
7949 * @lut_size: Size of buffer to store the lookup table entries
7951 * Return 0 on success, negative on failure
7953 static int i40e_get_rss_aq(struct i40e_vsi
*vsi
, const u8
*seed
,
7954 u8
*lut
, u16 lut_size
)
7956 struct i40e_pf
*pf
= vsi
->back
;
7957 struct i40e_hw
*hw
= &pf
->hw
;
7961 ret
= i40e_aq_get_rss_key(hw
, vsi
->id
,
7962 (struct i40e_aqc_get_set_rss_key_data
*)seed
);
7964 dev_info(&pf
->pdev
->dev
,
7965 "Cannot get RSS key, err %s aq_err %s\n",
7966 i40e_stat_str(&pf
->hw
, ret
),
7967 i40e_aq_str(&pf
->hw
,
7968 pf
->hw
.aq
.asq_last_status
));
7974 bool pf_lut
= vsi
->type
== I40E_VSI_MAIN
? true : false;
7976 ret
= i40e_aq_get_rss_lut(hw
, vsi
->id
, pf_lut
, lut
, lut_size
);
7978 dev_info(&pf
->pdev
->dev
,
7979 "Cannot get RSS lut, err %s aq_err %s\n",
7980 i40e_stat_str(&pf
->hw
, ret
),
7981 i40e_aq_str(&pf
->hw
,
7982 pf
->hw
.aq
.asq_last_status
));
7991 * i40e_config_rss_reg - Configure RSS keys and lut by writing registers
7992 * @vsi: Pointer to vsi structure
7993 * @seed: RSS hash seed
7994 * @lut: Lookup table
7995 * @lut_size: Lookup table size
7997 * Returns 0 on success, negative on failure
7999 static int i40e_config_rss_reg(struct i40e_vsi
*vsi
, const u8
*seed
,
8000 const u8
*lut
, u16 lut_size
)
8002 struct i40e_pf
*pf
= vsi
->back
;
8003 struct i40e_hw
*hw
= &pf
->hw
;
8006 /* Fill out hash function seed */
8008 u32
*seed_dw
= (u32
*)seed
;
8010 for (i
= 0; i
<= I40E_PFQF_HKEY_MAX_INDEX
; i
++)
8011 wr32(hw
, I40E_PFQF_HKEY(i
), seed_dw
[i
]);
8015 u32
*lut_dw
= (u32
*)lut
;
8017 if (lut_size
!= I40E_HLUT_ARRAY_SIZE
)
8020 for (i
= 0; i
<= I40E_PFQF_HLUT_MAX_INDEX
; i
++)
8021 wr32(hw
, I40E_PFQF_HLUT(i
), lut_dw
[i
]);
8029 * i40e_get_rss_reg - Get the RSS keys and lut by reading registers
8030 * @vsi: Pointer to VSI structure
8031 * @seed: Buffer to store the keys
8032 * @lut: Buffer to store the lookup table entries
8033 * @lut_size: Size of buffer to store the lookup table entries
8035 * Returns 0 on success, negative on failure
8037 static int i40e_get_rss_reg(struct i40e_vsi
*vsi
, u8
*seed
,
8038 u8
*lut
, u16 lut_size
)
8040 struct i40e_pf
*pf
= vsi
->back
;
8041 struct i40e_hw
*hw
= &pf
->hw
;
8045 u32
*seed_dw
= (u32
*)seed
;
8047 for (i
= 0; i
<= I40E_PFQF_HKEY_MAX_INDEX
; i
++)
8048 seed_dw
[i
] = rd32(hw
, I40E_PFQF_HKEY(i
));
8051 u32
*lut_dw
= (u32
*)lut
;
8053 if (lut_size
!= I40E_HLUT_ARRAY_SIZE
)
8055 for (i
= 0; i
<= I40E_PFQF_HLUT_MAX_INDEX
; i
++)
8056 lut_dw
[i
] = rd32(hw
, I40E_PFQF_HLUT(i
));
8063 * i40e_config_rss - Configure RSS keys and lut
8064 * @vsi: Pointer to VSI structure
8065 * @seed: RSS hash seed
8066 * @lut: Lookup table
8067 * @lut_size: Lookup table size
8069 * Returns 0 on success, negative on failure
8071 int i40e_config_rss(struct i40e_vsi
*vsi
, u8
*seed
, u8
*lut
, u16 lut_size
)
8073 struct i40e_pf
*pf
= vsi
->back
;
8075 if (pf
->flags
& I40E_FLAG_RSS_AQ_CAPABLE
)
8076 return i40e_config_rss_aq(vsi
, seed
, lut
, lut_size
);
8078 return i40e_config_rss_reg(vsi
, seed
, lut
, lut_size
);
8082 * i40e_get_rss - Get RSS keys and lut
8083 * @vsi: Pointer to VSI structure
8084 * @seed: Buffer to store the keys
8085 * @lut: Buffer to store the lookup table entries
8086 * lut_size: Size of buffer to store the lookup table entries
8088 * Returns 0 on success, negative on failure
8090 int i40e_get_rss(struct i40e_vsi
*vsi
, u8
*seed
, u8
*lut
, u16 lut_size
)
8092 struct i40e_pf
*pf
= vsi
->back
;
8094 if (pf
->flags
& I40E_FLAG_RSS_AQ_CAPABLE
)
8095 return i40e_get_rss_aq(vsi
, seed
, lut
, lut_size
);
8097 return i40e_get_rss_reg(vsi
, seed
, lut
, lut_size
);
8101 * i40e_fill_rss_lut - Fill the RSS lookup table with default values
8102 * @pf: Pointer to board private structure
8103 * @lut: Lookup table
8104 * @rss_table_size: Lookup table size
8105 * @rss_size: Range of queue number for hashing
8107 static void i40e_fill_rss_lut(struct i40e_pf
*pf
, u8
*lut
,
8108 u16 rss_table_size
, u16 rss_size
)
8112 for (i
= 0; i
< rss_table_size
; i
++)
8113 lut
[i
] = i
% rss_size
;
8117 * i40e_pf_config_rss - Prepare for RSS if used
8118 * @pf: board private structure
8120 static int i40e_pf_config_rss(struct i40e_pf
*pf
)
8122 struct i40e_vsi
*vsi
= pf
->vsi
[pf
->lan_vsi
];
8123 u8 seed
[I40E_HKEY_ARRAY_SIZE
];
8125 struct i40e_hw
*hw
= &pf
->hw
;
8130 /* By default we enable TCP/UDP with IPv4/IPv6 ptypes */
8131 hena
= (u64
)rd32(hw
, I40E_PFQF_HENA(0)) |
8132 ((u64
)rd32(hw
, I40E_PFQF_HENA(1)) << 32);
8133 hena
|= i40e_pf_get_default_rss_hena(pf
);
8135 wr32(hw
, I40E_PFQF_HENA(0), (u32
)hena
);
8136 wr32(hw
, I40E_PFQF_HENA(1), (u32
)(hena
>> 32));
8138 /* Determine the RSS table size based on the hardware capabilities */
8139 reg_val
= rd32(hw
, I40E_PFQF_CTL_0
);
8140 reg_val
= (pf
->rss_table_size
== 512) ?
8141 (reg_val
| I40E_PFQF_CTL_0_HASHLUTSIZE_512
) :
8142 (reg_val
& ~I40E_PFQF_CTL_0_HASHLUTSIZE_512
);
8143 wr32(hw
, I40E_PFQF_CTL_0
, reg_val
);
8145 /* Determine the RSS size of the VSI */
8147 vsi
->rss_size
= min_t(int, pf
->alloc_rss_size
,
8148 vsi
->num_queue_pairs
);
8150 lut
= kzalloc(vsi
->rss_table_size
, GFP_KERNEL
);
8154 /* Use user configured lut if there is one, otherwise use default */
8155 if (vsi
->rss_lut_user
)
8156 memcpy(lut
, vsi
->rss_lut_user
, vsi
->rss_table_size
);
8158 i40e_fill_rss_lut(pf
, lut
, vsi
->rss_table_size
, vsi
->rss_size
);
8160 /* Use user configured hash key if there is one, otherwise
8163 if (vsi
->rss_hkey_user
)
8164 memcpy(seed
, vsi
->rss_hkey_user
, I40E_HKEY_ARRAY_SIZE
);
8166 netdev_rss_key_fill((void *)seed
, I40E_HKEY_ARRAY_SIZE
);
8167 ret
= i40e_config_rss(vsi
, seed
, lut
, vsi
->rss_table_size
);
8174 * i40e_reconfig_rss_queues - change number of queues for rss and rebuild
8175 * @pf: board private structure
8176 * @queue_count: the requested queue count for rss.
8178 * returns 0 if rss is not enabled, if enabled returns the final rss queue
8179 * count which may be different from the requested queue count.
8181 int i40e_reconfig_rss_queues(struct i40e_pf
*pf
, int queue_count
)
8183 struct i40e_vsi
*vsi
= pf
->vsi
[pf
->lan_vsi
];
8186 if (!(pf
->flags
& I40E_FLAG_RSS_ENABLED
))
8189 new_rss_size
= min_t(int, queue_count
, pf
->rss_size_max
);
8191 if (queue_count
!= vsi
->num_queue_pairs
) {
8192 vsi
->req_queue_pairs
= queue_count
;
8193 i40e_prep_for_reset(pf
);
8195 pf
->alloc_rss_size
= new_rss_size
;
8197 i40e_reset_and_rebuild(pf
, true);
8199 /* Discard the user configured hash keys and lut, if less
8200 * queues are enabled.
8202 if (queue_count
< vsi
->rss_size
) {
8203 i40e_clear_rss_config_user(vsi
);
8204 dev_dbg(&pf
->pdev
->dev
,
8205 "discard user configured hash keys and lut\n");
8208 /* Reset vsi->rss_size, as number of enabled queues changed */
8209 vsi
->rss_size
= min_t(int, pf
->alloc_rss_size
,
8210 vsi
->num_queue_pairs
);
8212 i40e_pf_config_rss(pf
);
8214 dev_info(&pf
->pdev
->dev
, "RSS count/HW max RSS count: %d/%d\n",
8215 pf
->alloc_rss_size
, pf
->rss_size_max
);
8216 return pf
->alloc_rss_size
;
8220 * i40e_get_npar_bw_setting - Retrieve BW settings for this PF partition
8221 * @pf: board private structure
8223 i40e_status
i40e_get_npar_bw_setting(struct i40e_pf
*pf
)
8226 bool min_valid
, max_valid
;
8229 status
= i40e_read_bw_from_alt_ram(&pf
->hw
, &max_bw
, &min_bw
,
8230 &min_valid
, &max_valid
);
8234 pf
->npar_min_bw
= min_bw
;
8236 pf
->npar_max_bw
= max_bw
;
8243 * i40e_set_npar_bw_setting - Set BW settings for this PF partition
8244 * @pf: board private structure
8246 i40e_status
i40e_set_npar_bw_setting(struct i40e_pf
*pf
)
8248 struct i40e_aqc_configure_partition_bw_data bw_data
;
8251 /* Set the valid bit for this PF */
8252 bw_data
.pf_valid_bits
= cpu_to_le16(BIT(pf
->hw
.pf_id
));
8253 bw_data
.max_bw
[pf
->hw
.pf_id
] = pf
->npar_max_bw
& I40E_ALT_BW_VALUE_MASK
;
8254 bw_data
.min_bw
[pf
->hw
.pf_id
] = pf
->npar_min_bw
& I40E_ALT_BW_VALUE_MASK
;
8256 /* Set the new bandwidths */
8257 status
= i40e_aq_configure_partition_bw(&pf
->hw
, &bw_data
, NULL
);
8263 * i40e_commit_npar_bw_setting - Commit BW settings for this PF partition
8264 * @pf: board private structure
8266 i40e_status
i40e_commit_npar_bw_setting(struct i40e_pf
*pf
)
8268 /* Commit temporary BW setting to permanent NVM image */
8269 enum i40e_admin_queue_err last_aq_status
;
8273 if (pf
->hw
.partition_id
!= 1) {
8274 dev_info(&pf
->pdev
->dev
,
8275 "Commit BW only works on partition 1! This is partition %d",
8276 pf
->hw
.partition_id
);
8277 ret
= I40E_NOT_SUPPORTED
;
8281 /* Acquire NVM for read access */
8282 ret
= i40e_acquire_nvm(&pf
->hw
, I40E_RESOURCE_READ
);
8283 last_aq_status
= pf
->hw
.aq
.asq_last_status
;
8285 dev_info(&pf
->pdev
->dev
,
8286 "Cannot acquire NVM for read access, err %s aq_err %s\n",
8287 i40e_stat_str(&pf
->hw
, ret
),
8288 i40e_aq_str(&pf
->hw
, last_aq_status
));
8292 /* Read word 0x10 of NVM - SW compatibility word 1 */
8293 ret
= i40e_aq_read_nvm(&pf
->hw
,
8294 I40E_SR_NVM_CONTROL_WORD
,
8295 0x10, sizeof(nvm_word
), &nvm_word
,
8297 /* Save off last admin queue command status before releasing
8300 last_aq_status
= pf
->hw
.aq
.asq_last_status
;
8301 i40e_release_nvm(&pf
->hw
);
8303 dev_info(&pf
->pdev
->dev
, "NVM read error, err %s aq_err %s\n",
8304 i40e_stat_str(&pf
->hw
, ret
),
8305 i40e_aq_str(&pf
->hw
, last_aq_status
));
8309 /* Wait a bit for NVM release to complete */
8312 /* Acquire NVM for write access */
8313 ret
= i40e_acquire_nvm(&pf
->hw
, I40E_RESOURCE_WRITE
);
8314 last_aq_status
= pf
->hw
.aq
.asq_last_status
;
8316 dev_info(&pf
->pdev
->dev
,
8317 "Cannot acquire NVM for write access, err %s aq_err %s\n",
8318 i40e_stat_str(&pf
->hw
, ret
),
8319 i40e_aq_str(&pf
->hw
, last_aq_status
));
8322 /* Write it back out unchanged to initiate update NVM,
8323 * which will force a write of the shadow (alt) RAM to
8324 * the NVM - thus storing the bandwidth values permanently.
8326 ret
= i40e_aq_update_nvm(&pf
->hw
,
8327 I40E_SR_NVM_CONTROL_WORD
,
8328 0x10, sizeof(nvm_word
),
8329 &nvm_word
, true, NULL
);
8330 /* Save off last admin queue command status before releasing
8333 last_aq_status
= pf
->hw
.aq
.asq_last_status
;
8334 i40e_release_nvm(&pf
->hw
);
8336 dev_info(&pf
->pdev
->dev
,
8337 "BW settings NOT SAVED, err %s aq_err %s\n",
8338 i40e_stat_str(&pf
->hw
, ret
),
8339 i40e_aq_str(&pf
->hw
, last_aq_status
));
8346 * i40e_sw_init - Initialize general software structures (struct i40e_pf)
8347 * @pf: board private structure to initialize
8349 * i40e_sw_init initializes the Adapter private data structure.
8350 * Fields are initialized based on PCI device information and
8351 * OS network device settings (MTU size).
8353 static int i40e_sw_init(struct i40e_pf
*pf
)
8358 pf
->msg_enable
= netif_msg_init(I40E_DEFAULT_MSG_ENABLE
,
8359 (NETIF_MSG_DRV
|NETIF_MSG_PROBE
|NETIF_MSG_LINK
));
8360 pf
->hw
.debug_mask
= pf
->msg_enable
| I40E_DEBUG_DIAG
;
8361 if (debug
!= -1 && debug
!= I40E_DEFAULT_MSG_ENABLE
) {
8362 if (I40E_DEBUG_USER
& debug
)
8363 pf
->hw
.debug_mask
= debug
;
8364 pf
->msg_enable
= netif_msg_init((debug
& ~I40E_DEBUG_USER
),
8365 I40E_DEFAULT_MSG_ENABLE
);
8368 /* Set default capability flags */
8369 pf
->flags
= I40E_FLAG_RX_CSUM_ENABLED
|
8370 I40E_FLAG_MSI_ENABLED
|
8371 I40E_FLAG_LINK_POLLING_ENABLED
|
8372 I40E_FLAG_MSIX_ENABLED
;
8374 if (iommu_present(&pci_bus_type
))
8375 pf
->flags
|= I40E_FLAG_RX_PS_ENABLED
;
8377 pf
->flags
|= I40E_FLAG_RX_1BUF_ENABLED
;
8379 /* Set default ITR */
8380 pf
->rx_itr_default
= I40E_ITR_DYNAMIC
| I40E_ITR_RX_DEF
;
8381 pf
->tx_itr_default
= I40E_ITR_DYNAMIC
| I40E_ITR_TX_DEF
;
8383 /* Depending on PF configurations, it is possible that the RSS
8384 * maximum might end up larger than the available queues
8386 pf
->rss_size_max
= BIT(pf
->hw
.func_caps
.rss_table_entry_width
);
8387 pf
->alloc_rss_size
= 1;
8388 pf
->rss_table_size
= pf
->hw
.func_caps
.rss_table_size
;
8389 pf
->rss_size_max
= min_t(int, pf
->rss_size_max
,
8390 pf
->hw
.func_caps
.num_tx_qp
);
8391 if (pf
->hw
.func_caps
.rss
) {
8392 pf
->flags
|= I40E_FLAG_RSS_ENABLED
;
8393 pf
->alloc_rss_size
= min_t(int, pf
->rss_size_max
,
8397 /* MFP mode enabled */
8398 if (pf
->hw
.func_caps
.npar_enable
|| pf
->hw
.func_caps
.flex10_enable
) {
8399 pf
->flags
|= I40E_FLAG_MFP_ENABLED
;
8400 dev_info(&pf
->pdev
->dev
, "MFP mode Enabled\n");
8401 if (i40e_get_npar_bw_setting(pf
))
8402 dev_warn(&pf
->pdev
->dev
,
8403 "Could not get NPAR bw settings\n");
8405 dev_info(&pf
->pdev
->dev
,
8406 "Min BW = %8.8x, Max BW = %8.8x\n",
8407 pf
->npar_min_bw
, pf
->npar_max_bw
);
8410 /* FW/NVM is not yet fixed in this regard */
8411 if ((pf
->hw
.func_caps
.fd_filters_guaranteed
> 0) ||
8412 (pf
->hw
.func_caps
.fd_filters_best_effort
> 0)) {
8413 pf
->flags
|= I40E_FLAG_FD_ATR_ENABLED
;
8414 pf
->atr_sample_rate
= I40E_DEFAULT_ATR_SAMPLE_RATE
;
8415 if (pf
->flags
& I40E_FLAG_MFP_ENABLED
&&
8416 pf
->hw
.num_partitions
> 1)
8417 dev_info(&pf
->pdev
->dev
,
8418 "Flow Director Sideband mode Disabled in MFP mode\n");
8420 pf
->flags
|= I40E_FLAG_FD_SB_ENABLED
;
8421 pf
->fdir_pf_filter_count
=
8422 pf
->hw
.func_caps
.fd_filters_guaranteed
;
8423 pf
->hw
.fdir_shared_filter_count
=
8424 pf
->hw
.func_caps
.fd_filters_best_effort
;
8427 if (i40e_is_mac_710(&pf
->hw
) &&
8428 (((pf
->hw
.aq
.fw_maj_ver
== 4) && (pf
->hw
.aq
.fw_min_ver
< 33)) ||
8429 (pf
->hw
.aq
.fw_maj_ver
< 4))) {
8430 pf
->flags
|= I40E_FLAG_RESTART_AUTONEG
;
8431 /* No DCB support for FW < v4.33 */
8432 pf
->flags
|= I40E_FLAG_NO_DCB_SUPPORT
;
8435 /* Disable FW LLDP if FW < v4.3 */
8436 if (i40e_is_mac_710(&pf
->hw
) &&
8437 (((pf
->hw
.aq
.fw_maj_ver
== 4) && (pf
->hw
.aq
.fw_min_ver
< 3)) ||
8438 (pf
->hw
.aq
.fw_maj_ver
< 4)))
8439 pf
->flags
|= I40E_FLAG_STOP_FW_LLDP
;
8441 /* Use the FW Set LLDP MIB API if FW > v4.40 */
8442 if (i40e_is_mac_710(&pf
->hw
) &&
8443 (((pf
->hw
.aq
.fw_maj_ver
== 4) && (pf
->hw
.aq
.fw_min_ver
>= 40)) ||
8444 (pf
->hw
.aq
.fw_maj_ver
>= 5)))
8445 pf
->flags
|= I40E_FLAG_USE_SET_LLDP_MIB
;
8447 if (pf
->hw
.func_caps
.vmdq
) {
8448 pf
->num_vmdq_vsis
= I40E_DEFAULT_NUM_VMDQ_VSI
;
8449 pf
->flags
|= I40E_FLAG_VMDQ_ENABLED
;
8450 pf
->num_vmdq_qps
= i40e_default_queues_per_vmdq(pf
);
8454 i40e_init_pf_fcoe(pf
);
8456 #endif /* I40E_FCOE */
8457 #ifdef CONFIG_PCI_IOV
8458 if (pf
->hw
.func_caps
.num_vfs
&& pf
->hw
.partition_id
== 1) {
8459 pf
->num_vf_qps
= I40E_DEFAULT_QUEUES_PER_VF
;
8460 pf
->flags
|= I40E_FLAG_SRIOV_ENABLED
;
8461 pf
->num_req_vfs
= min_t(int,
8462 pf
->hw
.func_caps
.num_vfs
,
8465 #endif /* CONFIG_PCI_IOV */
8466 if (pf
->hw
.mac
.type
== I40E_MAC_X722
) {
8467 pf
->flags
|= I40E_FLAG_RSS_AQ_CAPABLE
|
8468 I40E_FLAG_128_QP_RSS_CAPABLE
|
8469 I40E_FLAG_HW_ATR_EVICT_CAPABLE
|
8470 I40E_FLAG_OUTER_UDP_CSUM_CAPABLE
|
8471 I40E_FLAG_WB_ON_ITR_CAPABLE
|
8472 I40E_FLAG_MULTIPLE_TCP_UDP_RSS_PCTYPE
|
8473 I40E_FLAG_100M_SGMII_CAPABLE
|
8474 I40E_FLAG_USE_SET_LLDP_MIB
|
8475 I40E_FLAG_GENEVE_OFFLOAD_CAPABLE
;
8476 } else if ((pf
->hw
.aq
.api_maj_ver
> 1) ||
8477 ((pf
->hw
.aq
.api_maj_ver
== 1) &&
8478 (pf
->hw
.aq
.api_min_ver
> 4))) {
8479 /* Supported in FW API version higher than 1.4 */
8480 pf
->flags
|= I40E_FLAG_GENEVE_OFFLOAD_CAPABLE
;
8481 pf
->auto_disable_flags
= I40E_FLAG_HW_ATR_EVICT_CAPABLE
;
8483 pf
->auto_disable_flags
= I40E_FLAG_HW_ATR_EVICT_CAPABLE
;
8486 pf
->eeprom_version
= 0xDEAD;
8487 pf
->lan_veb
= I40E_NO_VEB
;
8488 pf
->lan_vsi
= I40E_NO_VSI
;
8490 /* By default FW has this off for performance reasons */
8491 pf
->flags
&= ~I40E_FLAG_VEB_STATS_ENABLED
;
8493 /* set up queue assignment tracking */
8494 size
= sizeof(struct i40e_lump_tracking
)
8495 + (sizeof(u16
) * pf
->hw
.func_caps
.num_tx_qp
);
8496 pf
->qp_pile
= kzalloc(size
, GFP_KERNEL
);
8501 pf
->qp_pile
->num_entries
= pf
->hw
.func_caps
.num_tx_qp
;
8502 pf
->qp_pile
->search_hint
= 0;
8504 pf
->tx_timeout_recovery_level
= 1;
8506 mutex_init(&pf
->switch_mutex
);
8508 /* If NPAR is enabled nudge the Tx scheduler */
8509 if (pf
->hw
.func_caps
.npar_enable
&& (!i40e_get_npar_bw_setting(pf
)))
8510 i40e_set_npar_bw_setting(pf
);
8517 * i40e_set_ntuple - set the ntuple feature flag and take action
8518 * @pf: board private structure to initialize
8519 * @features: the feature set that the stack is suggesting
8521 * returns a bool to indicate if reset needs to happen
8523 bool i40e_set_ntuple(struct i40e_pf
*pf
, netdev_features_t features
)
8525 bool need_reset
= false;
8527 /* Check if Flow Director n-tuple support was enabled or disabled. If
8528 * the state changed, we need to reset.
8530 if (features
& NETIF_F_NTUPLE
) {
8531 /* Enable filters and mark for reset */
8532 if (!(pf
->flags
& I40E_FLAG_FD_SB_ENABLED
))
8534 pf
->flags
|= I40E_FLAG_FD_SB_ENABLED
;
8536 /* turn off filters, mark for reset and clear SW filter list */
8537 if (pf
->flags
& I40E_FLAG_FD_SB_ENABLED
) {
8539 i40e_fdir_filter_exit(pf
);
8541 pf
->flags
&= ~I40E_FLAG_FD_SB_ENABLED
;
8542 pf
->auto_disable_flags
&= ~I40E_FLAG_FD_SB_ENABLED
;
8543 /* reset fd counters */
8544 pf
->fd_add_err
= pf
->fd_atr_cnt
= pf
->fd_tcp_rule
= 0;
8545 pf
->fdir_pf_active_filters
= 0;
8546 pf
->flags
|= I40E_FLAG_FD_ATR_ENABLED
;
8547 if (I40E_DEBUG_FD
& pf
->hw
.debug_mask
)
8548 dev_info(&pf
->pdev
->dev
, "ATR re-enabled.\n");
8549 /* if ATR was auto disabled it can be re-enabled. */
8550 if ((pf
->flags
& I40E_FLAG_FD_ATR_ENABLED
) &&
8551 (pf
->auto_disable_flags
& I40E_FLAG_FD_ATR_ENABLED
))
8552 pf
->auto_disable_flags
&= ~I40E_FLAG_FD_ATR_ENABLED
;
8558 * i40e_set_features - set the netdev feature flags
8559 * @netdev: ptr to the netdev being adjusted
8560 * @features: the feature set that the stack is suggesting
8562 static int i40e_set_features(struct net_device
*netdev
,
8563 netdev_features_t features
)
8565 struct i40e_netdev_priv
*np
= netdev_priv(netdev
);
8566 struct i40e_vsi
*vsi
= np
->vsi
;
8567 struct i40e_pf
*pf
= vsi
->back
;
8570 if (features
& NETIF_F_HW_VLAN_CTAG_RX
)
8571 i40e_vlan_stripping_enable(vsi
);
8573 i40e_vlan_stripping_disable(vsi
);
8575 need_reset
= i40e_set_ntuple(pf
, features
);
8578 i40e_do_reset(pf
, BIT_ULL(__I40E_PF_RESET_REQUESTED
));
8583 #if IS_ENABLED(CONFIG_VXLAN) || IS_ENABLED(CONFIG_GENEVE)
8585 * i40e_get_udp_port_idx - Lookup a possibly offloaded for Rx UDP port
8586 * @pf: board private structure
8587 * @port: The UDP port to look up
8589 * Returns the index number or I40E_MAX_PF_UDP_OFFLOAD_PORTS if port not found
8591 static u8
i40e_get_udp_port_idx(struct i40e_pf
*pf
, __be16 port
)
8595 for (i
= 0; i
< I40E_MAX_PF_UDP_OFFLOAD_PORTS
; i
++) {
8596 if (pf
->udp_ports
[i
].index
== port
)
8605 #if IS_ENABLED(CONFIG_VXLAN)
8607 * i40e_add_vxlan_port - Get notifications about VXLAN ports that come up
8608 * @netdev: This physical port's netdev
8609 * @sa_family: Socket Family that VXLAN is notifying us about
8610 * @port: New UDP port number that VXLAN started listening to
8612 static void i40e_add_vxlan_port(struct net_device
*netdev
,
8613 sa_family_t sa_family
, __be16 port
)
8615 struct i40e_netdev_priv
*np
= netdev_priv(netdev
);
8616 struct i40e_vsi
*vsi
= np
->vsi
;
8617 struct i40e_pf
*pf
= vsi
->back
;
8621 if (sa_family
== AF_INET6
)
8624 idx
= i40e_get_udp_port_idx(pf
, port
);
8626 /* Check if port already exists */
8627 if (idx
< I40E_MAX_PF_UDP_OFFLOAD_PORTS
) {
8628 netdev_info(netdev
, "vxlan port %d already offloaded\n",
8633 /* Now check if there is space to add the new port */
8634 next_idx
= i40e_get_udp_port_idx(pf
, 0);
8636 if (next_idx
== I40E_MAX_PF_UDP_OFFLOAD_PORTS
) {
8637 netdev_info(netdev
, "maximum number of vxlan UDP ports reached, not adding port %d\n",
8642 /* New port: add it and mark its index in the bitmap */
8643 pf
->udp_ports
[next_idx
].index
= port
;
8644 pf
->udp_ports
[next_idx
].type
= I40E_AQC_TUNNEL_TYPE_VXLAN
;
8645 pf
->pending_udp_bitmap
|= BIT_ULL(next_idx
);
8646 pf
->flags
|= I40E_FLAG_UDP_FILTER_SYNC
;
8650 * i40e_del_vxlan_port - Get notifications about VXLAN ports that go away
8651 * @netdev: This physical port's netdev
8652 * @sa_family: Socket Family that VXLAN is notifying us about
8653 * @port: UDP port number that VXLAN stopped listening to
8655 static void i40e_del_vxlan_port(struct net_device
*netdev
,
8656 sa_family_t sa_family
, __be16 port
)
8658 struct i40e_netdev_priv
*np
= netdev_priv(netdev
);
8659 struct i40e_vsi
*vsi
= np
->vsi
;
8660 struct i40e_pf
*pf
= vsi
->back
;
8663 if (sa_family
== AF_INET6
)
8666 idx
= i40e_get_udp_port_idx(pf
, port
);
8668 /* Check if port already exists */
8669 if (idx
< I40E_MAX_PF_UDP_OFFLOAD_PORTS
) {
8670 /* if port exists, set it to 0 (mark for deletion)
8671 * and make it pending
8673 pf
->udp_ports
[idx
].index
= 0;
8674 pf
->pending_udp_bitmap
|= BIT_ULL(idx
);
8675 pf
->flags
|= I40E_FLAG_UDP_FILTER_SYNC
;
8677 netdev_warn(netdev
, "vxlan port %d was not found, not deleting\n",
8683 #if IS_ENABLED(CONFIG_GENEVE)
8685 * i40e_add_geneve_port - Get notifications about GENEVE ports that come up
8686 * @netdev: This physical port's netdev
8687 * @sa_family: Socket Family that GENEVE is notifying us about
8688 * @port: New UDP port number that GENEVE started listening to
8690 static void i40e_add_geneve_port(struct net_device
*netdev
,
8691 sa_family_t sa_family
, __be16 port
)
8693 struct i40e_netdev_priv
*np
= netdev_priv(netdev
);
8694 struct i40e_vsi
*vsi
= np
->vsi
;
8695 struct i40e_pf
*pf
= vsi
->back
;
8699 if (!(pf
->flags
& I40E_FLAG_GENEVE_OFFLOAD_CAPABLE
))
8702 if (sa_family
== AF_INET6
)
8705 idx
= i40e_get_udp_port_idx(pf
, port
);
8707 /* Check if port already exists */
8708 if (idx
< I40E_MAX_PF_UDP_OFFLOAD_PORTS
) {
8709 netdev_info(netdev
, "udp port %d already offloaded\n",
8714 /* Now check if there is space to add the new port */
8715 next_idx
= i40e_get_udp_port_idx(pf
, 0);
8717 if (next_idx
== I40E_MAX_PF_UDP_OFFLOAD_PORTS
) {
8718 netdev_info(netdev
, "maximum number of UDP ports reached, not adding port %d\n",
8723 /* New port: add it and mark its index in the bitmap */
8724 pf
->udp_ports
[next_idx
].index
= port
;
8725 pf
->udp_ports
[next_idx
].type
= I40E_AQC_TUNNEL_TYPE_NGE
;
8726 pf
->pending_udp_bitmap
|= BIT_ULL(next_idx
);
8727 pf
->flags
|= I40E_FLAG_UDP_FILTER_SYNC
;
8729 dev_info(&pf
->pdev
->dev
, "adding geneve port %d\n", ntohs(port
));
8733 * i40e_del_geneve_port - Get notifications about GENEVE ports that go away
8734 * @netdev: This physical port's netdev
8735 * @sa_family: Socket Family that GENEVE is notifying us about
8736 * @port: UDP port number that GENEVE stopped listening to
8738 static void i40e_del_geneve_port(struct net_device
*netdev
,
8739 sa_family_t sa_family
, __be16 port
)
8741 struct i40e_netdev_priv
*np
= netdev_priv(netdev
);
8742 struct i40e_vsi
*vsi
= np
->vsi
;
8743 struct i40e_pf
*pf
= vsi
->back
;
8746 if (sa_family
== AF_INET6
)
8749 if (!(pf
->flags
& I40E_FLAG_GENEVE_OFFLOAD_CAPABLE
))
8752 idx
= i40e_get_udp_port_idx(pf
, port
);
8754 /* Check if port already exists */
8755 if (idx
< I40E_MAX_PF_UDP_OFFLOAD_PORTS
) {
8756 /* if port exists, set it to 0 (mark for deletion)
8757 * and make it pending
8759 pf
->udp_ports
[idx
].index
= 0;
8760 pf
->pending_udp_bitmap
|= BIT_ULL(idx
);
8761 pf
->flags
|= I40E_FLAG_UDP_FILTER_SYNC
;
8763 dev_info(&pf
->pdev
->dev
, "deleting geneve port %d\n",
8766 netdev_warn(netdev
, "geneve port %d was not found, not deleting\n",
8772 static int i40e_get_phys_port_id(struct net_device
*netdev
,
8773 struct netdev_phys_item_id
*ppid
)
8775 struct i40e_netdev_priv
*np
= netdev_priv(netdev
);
8776 struct i40e_pf
*pf
= np
->vsi
->back
;
8777 struct i40e_hw
*hw
= &pf
->hw
;
8779 if (!(pf
->flags
& I40E_FLAG_PORT_ID_VALID
))
8782 ppid
->id_len
= min_t(int, sizeof(hw
->mac
.port_addr
), sizeof(ppid
->id
));
8783 memcpy(ppid
->id
, hw
->mac
.port_addr
, ppid
->id_len
);
8789 * i40e_ndo_fdb_add - add an entry to the hardware database
8790 * @ndm: the input from the stack
8791 * @tb: pointer to array of nladdr (unused)
8792 * @dev: the net device pointer
8793 * @addr: the MAC address entry being added
8794 * @flags: instructions from stack about fdb operation
8796 static int i40e_ndo_fdb_add(struct ndmsg
*ndm
, struct nlattr
*tb
[],
8797 struct net_device
*dev
,
8798 const unsigned char *addr
, u16 vid
,
8801 struct i40e_netdev_priv
*np
= netdev_priv(dev
);
8802 struct i40e_pf
*pf
= np
->vsi
->back
;
8805 if (!(pf
->flags
& I40E_FLAG_SRIOV_ENABLED
))
8809 pr_info("%s: vlans aren't supported yet for dev_uc|mc_add()\n", dev
->name
);
8813 /* Hardware does not support aging addresses so if a
8814 * ndm_state is given only allow permanent addresses
8816 if (ndm
->ndm_state
&& !(ndm
->ndm_state
& NUD_PERMANENT
)) {
8817 netdev_info(dev
, "FDB only supports static addresses\n");
8821 if (is_unicast_ether_addr(addr
) || is_link_local_ether_addr(addr
))
8822 err
= dev_uc_add_excl(dev
, addr
);
8823 else if (is_multicast_ether_addr(addr
))
8824 err
= dev_mc_add_excl(dev
, addr
);
8828 /* Only return duplicate errors if NLM_F_EXCL is set */
8829 if (err
== -EEXIST
&& !(flags
& NLM_F_EXCL
))
8836 * i40e_ndo_bridge_setlink - Set the hardware bridge mode
8837 * @dev: the netdev being configured
8838 * @nlh: RTNL message
8840 * Inserts a new hardware bridge if not already created and
8841 * enables the bridging mode requested (VEB or VEPA). If the
8842 * hardware bridge has already been inserted and the request
8843 * is to change the mode then that requires a PF reset to
8844 * allow rebuild of the components with required hardware
8845 * bridge mode enabled.
8847 static int i40e_ndo_bridge_setlink(struct net_device
*dev
,
8848 struct nlmsghdr
*nlh
,
8851 struct i40e_netdev_priv
*np
= netdev_priv(dev
);
8852 struct i40e_vsi
*vsi
= np
->vsi
;
8853 struct i40e_pf
*pf
= vsi
->back
;
8854 struct i40e_veb
*veb
= NULL
;
8855 struct nlattr
*attr
, *br_spec
;
8858 /* Only for PF VSI for now */
8859 if (vsi
->seid
!= pf
->vsi
[pf
->lan_vsi
]->seid
)
8862 /* Find the HW bridge for PF VSI */
8863 for (i
= 0; i
< I40E_MAX_VEB
&& !veb
; i
++) {
8864 if (pf
->veb
[i
] && pf
->veb
[i
]->seid
== vsi
->uplink_seid
)
8868 br_spec
= nlmsg_find_attr(nlh
, sizeof(struct ifinfomsg
), IFLA_AF_SPEC
);
8870 nla_for_each_nested(attr
, br_spec
, rem
) {
8873 if (nla_type(attr
) != IFLA_BRIDGE_MODE
)
8876 mode
= nla_get_u16(attr
);
8877 if ((mode
!= BRIDGE_MODE_VEPA
) &&
8878 (mode
!= BRIDGE_MODE_VEB
))
8881 /* Insert a new HW bridge */
8883 veb
= i40e_veb_setup(pf
, 0, vsi
->uplink_seid
, vsi
->seid
,
8884 vsi
->tc_config
.enabled_tc
);
8886 veb
->bridge_mode
= mode
;
8887 i40e_config_bridge_mode(veb
);
8889 /* No Bridge HW offload available */
8893 } else if (mode
!= veb
->bridge_mode
) {
8894 /* Existing HW bridge but different mode needs reset */
8895 veb
->bridge_mode
= mode
;
8896 /* TODO: If no VFs or VMDq VSIs, disallow VEB mode */
8897 if (mode
== BRIDGE_MODE_VEB
)
8898 pf
->flags
|= I40E_FLAG_VEB_MODE_ENABLED
;
8900 pf
->flags
&= ~I40E_FLAG_VEB_MODE_ENABLED
;
8901 i40e_do_reset(pf
, BIT_ULL(__I40E_PF_RESET_REQUESTED
));
8910 * i40e_ndo_bridge_getlink - Get the hardware bridge mode
8913 * @seq: RTNL message seq #
8914 * @dev: the netdev being configured
8915 * @filter_mask: unused
8916 * @nlflags: netlink flags passed in
8918 * Return the mode in which the hardware bridge is operating in
8921 static int i40e_ndo_bridge_getlink(struct sk_buff
*skb
, u32 pid
, u32 seq
,
8922 struct net_device
*dev
,
8923 u32 __always_unused filter_mask
,
8926 struct i40e_netdev_priv
*np
= netdev_priv(dev
);
8927 struct i40e_vsi
*vsi
= np
->vsi
;
8928 struct i40e_pf
*pf
= vsi
->back
;
8929 struct i40e_veb
*veb
= NULL
;
8932 /* Only for PF VSI for now */
8933 if (vsi
->seid
!= pf
->vsi
[pf
->lan_vsi
]->seid
)
8936 /* Find the HW bridge for the PF VSI */
8937 for (i
= 0; i
< I40E_MAX_VEB
&& !veb
; i
++) {
8938 if (pf
->veb
[i
] && pf
->veb
[i
]->seid
== vsi
->uplink_seid
)
8945 return ndo_dflt_bridge_getlink(skb
, pid
, seq
, dev
, veb
->bridge_mode
,
8946 nlflags
, 0, 0, filter_mask
, NULL
);
8949 /* Hardware supports L4 tunnel length of 128B (=2^7) which includes
8950 * inner mac plus all inner ethertypes.
8952 #define I40E_MAX_TUNNEL_HDR_LEN 128
8954 * i40e_features_check - Validate encapsulated packet conforms to limits
8956 * @dev: This physical port's netdev
8957 * @features: Offload features that the stack believes apply
8959 static netdev_features_t
i40e_features_check(struct sk_buff
*skb
,
8960 struct net_device
*dev
,
8961 netdev_features_t features
)
8963 if (skb
->encapsulation
&&
8964 ((skb_inner_network_header(skb
) - skb_transport_header(skb
)) >
8965 I40E_MAX_TUNNEL_HDR_LEN
))
8966 return features
& ~(NETIF_F_CSUM_MASK
| NETIF_F_GSO_MASK
);
8971 static const struct net_device_ops i40e_netdev_ops
= {
8972 .ndo_open
= i40e_open
,
8973 .ndo_stop
= i40e_close
,
8974 .ndo_start_xmit
= i40e_lan_xmit_frame
,
8975 .ndo_get_stats64
= i40e_get_netdev_stats_struct
,
8976 .ndo_set_rx_mode
= i40e_set_rx_mode
,
8977 .ndo_validate_addr
= eth_validate_addr
,
8978 .ndo_set_mac_address
= i40e_set_mac
,
8979 .ndo_change_mtu
= i40e_change_mtu
,
8980 .ndo_do_ioctl
= i40e_ioctl
,
8981 .ndo_tx_timeout
= i40e_tx_timeout
,
8982 .ndo_vlan_rx_add_vid
= i40e_vlan_rx_add_vid
,
8983 .ndo_vlan_rx_kill_vid
= i40e_vlan_rx_kill_vid
,
8984 #ifdef CONFIG_NET_POLL_CONTROLLER
8985 .ndo_poll_controller
= i40e_netpoll
,
8987 .ndo_setup_tc
= __i40e_setup_tc
,
8989 .ndo_fcoe_enable
= i40e_fcoe_enable
,
8990 .ndo_fcoe_disable
= i40e_fcoe_disable
,
8992 .ndo_set_features
= i40e_set_features
,
8993 .ndo_set_vf_mac
= i40e_ndo_set_vf_mac
,
8994 .ndo_set_vf_vlan
= i40e_ndo_set_vf_port_vlan
,
8995 .ndo_set_vf_rate
= i40e_ndo_set_vf_bw
,
8996 .ndo_get_vf_config
= i40e_ndo_get_vf_config
,
8997 .ndo_set_vf_link_state
= i40e_ndo_set_vf_link_state
,
8998 .ndo_set_vf_spoofchk
= i40e_ndo_set_vf_spoofchk
,
8999 #if IS_ENABLED(CONFIG_VXLAN)
9000 .ndo_add_vxlan_port
= i40e_add_vxlan_port
,
9001 .ndo_del_vxlan_port
= i40e_del_vxlan_port
,
9003 #if IS_ENABLED(CONFIG_GENEVE)
9004 .ndo_add_geneve_port
= i40e_add_geneve_port
,
9005 .ndo_del_geneve_port
= i40e_del_geneve_port
,
9007 .ndo_get_phys_port_id
= i40e_get_phys_port_id
,
9008 .ndo_fdb_add
= i40e_ndo_fdb_add
,
9009 .ndo_features_check
= i40e_features_check
,
9010 .ndo_bridge_getlink
= i40e_ndo_bridge_getlink
,
9011 .ndo_bridge_setlink
= i40e_ndo_bridge_setlink
,
9015 * i40e_config_netdev - Setup the netdev flags
9016 * @vsi: the VSI being configured
9018 * Returns 0 on success, negative value on failure
9020 static int i40e_config_netdev(struct i40e_vsi
*vsi
)
9022 u8 brdcast
[ETH_ALEN
] = {0xff, 0xff, 0xff, 0xff, 0xff, 0xff};
9023 struct i40e_pf
*pf
= vsi
->back
;
9024 struct i40e_hw
*hw
= &pf
->hw
;
9025 struct i40e_netdev_priv
*np
;
9026 struct net_device
*netdev
;
9027 u8 mac_addr
[ETH_ALEN
];
9030 etherdev_size
= sizeof(struct i40e_netdev_priv
);
9031 netdev
= alloc_etherdev_mq(etherdev_size
, vsi
->alloc_queue_pairs
);
9035 vsi
->netdev
= netdev
;
9036 np
= netdev_priv(netdev
);
9039 netdev
->hw_enc_features
|= NETIF_F_IP_CSUM
|
9040 NETIF_F_GSO_UDP_TUNNEL
|
9045 netdev
->features
= NETIF_F_SG
|
9049 NETIF_F_GSO_UDP_TUNNEL
|
9051 NETIF_F_HW_VLAN_CTAG_TX
|
9052 NETIF_F_HW_VLAN_CTAG_RX
|
9053 NETIF_F_HW_VLAN_CTAG_FILTER
|
9062 if (!(pf
->flags
& I40E_FLAG_MFP_ENABLED
))
9063 netdev
->features
|= NETIF_F_NTUPLE
;
9065 /* copy netdev features into list of user selectable features */
9066 netdev
->hw_features
|= netdev
->features
;
9068 if (vsi
->type
== I40E_VSI_MAIN
) {
9069 SET_NETDEV_DEV(netdev
, &pf
->pdev
->dev
);
9070 ether_addr_copy(mac_addr
, hw
->mac
.perm_addr
);
9071 /* The following steps are necessary to prevent reception
9072 * of tagged packets - some older NVM configurations load a
9073 * default a MAC-VLAN filter that accepts any tagged packet
9074 * which must be replaced by a normal filter.
9076 if (!i40e_rm_default_mac_filter(vsi
, mac_addr
)) {
9077 spin_lock_bh(&vsi
->mac_filter_list_lock
);
9078 i40e_add_filter(vsi
, mac_addr
,
9079 I40E_VLAN_ANY
, false, true);
9080 spin_unlock_bh(&vsi
->mac_filter_list_lock
);
9083 /* relate the VSI_VMDQ name to the VSI_MAIN name */
9084 snprintf(netdev
->name
, IFNAMSIZ
, "%sv%%d",
9085 pf
->vsi
[pf
->lan_vsi
]->netdev
->name
);
9086 random_ether_addr(mac_addr
);
9088 spin_lock_bh(&vsi
->mac_filter_list_lock
);
9089 i40e_add_filter(vsi
, mac_addr
, I40E_VLAN_ANY
, false, false);
9090 spin_unlock_bh(&vsi
->mac_filter_list_lock
);
9093 spin_lock_bh(&vsi
->mac_filter_list_lock
);
9094 i40e_add_filter(vsi
, brdcast
, I40E_VLAN_ANY
, false, false);
9095 spin_unlock_bh(&vsi
->mac_filter_list_lock
);
9097 ether_addr_copy(netdev
->dev_addr
, mac_addr
);
9098 ether_addr_copy(netdev
->perm_addr
, mac_addr
);
9099 /* vlan gets same features (except vlan offload)
9100 * after any tweaks for specific VSI types
9102 netdev
->vlan_features
= netdev
->features
& ~(NETIF_F_HW_VLAN_CTAG_TX
|
9103 NETIF_F_HW_VLAN_CTAG_RX
|
9104 NETIF_F_HW_VLAN_CTAG_FILTER
);
9105 netdev
->priv_flags
|= IFF_UNICAST_FLT
;
9106 netdev
->priv_flags
|= IFF_SUPP_NOFCS
;
9107 /* Setup netdev TC information */
9108 i40e_vsi_config_netdev_tc(vsi
, vsi
->tc_config
.enabled_tc
);
9110 netdev
->netdev_ops
= &i40e_netdev_ops
;
9111 netdev
->watchdog_timeo
= 5 * HZ
;
9112 i40e_set_ethtool_ops(netdev
);
9114 i40e_fcoe_config_netdev(netdev
, vsi
);
9121 * i40e_vsi_delete - Delete a VSI from the switch
9122 * @vsi: the VSI being removed
9124 * Returns 0 on success, negative value on failure
9126 static void i40e_vsi_delete(struct i40e_vsi
*vsi
)
9128 /* remove default VSI is not allowed */
9129 if (vsi
== vsi
->back
->vsi
[vsi
->back
->lan_vsi
])
9132 i40e_aq_delete_element(&vsi
->back
->hw
, vsi
->seid
, NULL
);
9136 * i40e_is_vsi_uplink_mode_veb - Check if the VSI's uplink bridge mode is VEB
9137 * @vsi: the VSI being queried
9139 * Returns 1 if HW bridge mode is VEB and return 0 in case of VEPA mode
9141 int i40e_is_vsi_uplink_mode_veb(struct i40e_vsi
*vsi
)
9143 struct i40e_veb
*veb
;
9144 struct i40e_pf
*pf
= vsi
->back
;
9146 /* Uplink is not a bridge so default to VEB */
9147 if (vsi
->veb_idx
== I40E_NO_VEB
)
9150 veb
= pf
->veb
[vsi
->veb_idx
];
9152 dev_info(&pf
->pdev
->dev
,
9153 "There is no veb associated with the bridge\n");
9157 /* Uplink is a bridge in VEPA mode */
9158 if (veb
->bridge_mode
& BRIDGE_MODE_VEPA
) {
9161 /* Uplink is a bridge in VEB mode */
9165 /* VEPA is now default bridge, so return 0 */
9170 * i40e_add_vsi - Add a VSI to the switch
9171 * @vsi: the VSI being configured
9173 * This initializes a VSI context depending on the VSI type to be added and
9174 * passes it down to the add_vsi aq command.
9176 static int i40e_add_vsi(struct i40e_vsi
*vsi
)
9179 u8 laa_macaddr
[ETH_ALEN
];
9180 bool found_laa_mac_filter
= false;
9181 struct i40e_pf
*pf
= vsi
->back
;
9182 struct i40e_hw
*hw
= &pf
->hw
;
9183 struct i40e_vsi_context ctxt
;
9184 struct i40e_mac_filter
*f
, *ftmp
;
9186 u8 enabled_tc
= 0x1; /* TC0 enabled */
9189 memset(&ctxt
, 0, sizeof(ctxt
));
9190 switch (vsi
->type
) {
9192 /* The PF's main VSI is already setup as part of the
9193 * device initialization, so we'll not bother with
9194 * the add_vsi call, but we will retrieve the current
9197 ctxt
.seid
= pf
->main_vsi_seid
;
9198 ctxt
.pf_num
= pf
->hw
.pf_id
;
9200 ret
= i40e_aq_get_vsi_params(&pf
->hw
, &ctxt
, NULL
);
9201 ctxt
.flags
= I40E_AQ_VSI_TYPE_PF
;
9203 dev_info(&pf
->pdev
->dev
,
9204 "couldn't get PF vsi config, err %s aq_err %s\n",
9205 i40e_stat_str(&pf
->hw
, ret
),
9206 i40e_aq_str(&pf
->hw
,
9207 pf
->hw
.aq
.asq_last_status
));
9210 vsi
->info
= ctxt
.info
;
9211 vsi
->info
.valid_sections
= 0;
9213 vsi
->seid
= ctxt
.seid
;
9214 vsi
->id
= ctxt
.vsi_number
;
9216 enabled_tc
= i40e_pf_get_tc_map(pf
);
9218 /* MFP mode setup queue map and update VSI */
9219 if ((pf
->flags
& I40E_FLAG_MFP_ENABLED
) &&
9220 !(pf
->hw
.func_caps
.iscsi
)) { /* NIC type PF */
9221 memset(&ctxt
, 0, sizeof(ctxt
));
9222 ctxt
.seid
= pf
->main_vsi_seid
;
9223 ctxt
.pf_num
= pf
->hw
.pf_id
;
9225 i40e_vsi_setup_queue_map(vsi
, &ctxt
, enabled_tc
, false);
9226 ret
= i40e_aq_update_vsi_params(hw
, &ctxt
, NULL
);
9228 dev_info(&pf
->pdev
->dev
,
9229 "update vsi failed, err %s aq_err %s\n",
9230 i40e_stat_str(&pf
->hw
, ret
),
9231 i40e_aq_str(&pf
->hw
,
9232 pf
->hw
.aq
.asq_last_status
));
9236 /* update the local VSI info queue map */
9237 i40e_vsi_update_queue_map(vsi
, &ctxt
);
9238 vsi
->info
.valid_sections
= 0;
9240 /* Default/Main VSI is only enabled for TC0
9241 * reconfigure it to enable all TCs that are
9242 * available on the port in SFP mode.
9243 * For MFP case the iSCSI PF would use this
9244 * flow to enable LAN+iSCSI TC.
9246 ret
= i40e_vsi_config_tc(vsi
, enabled_tc
);
9248 dev_info(&pf
->pdev
->dev
,
9249 "failed to configure TCs for main VSI tc_map 0x%08x, err %s aq_err %s\n",
9251 i40e_stat_str(&pf
->hw
, ret
),
9252 i40e_aq_str(&pf
->hw
,
9253 pf
->hw
.aq
.asq_last_status
));
9260 ctxt
.pf_num
= hw
->pf_id
;
9262 ctxt
.uplink_seid
= vsi
->uplink_seid
;
9263 ctxt
.connection_type
= I40E_AQ_VSI_CONN_TYPE_NORMAL
;
9264 ctxt
.flags
= I40E_AQ_VSI_TYPE_PF
;
9265 if ((pf
->flags
& I40E_FLAG_VEB_MODE_ENABLED
) &&
9266 (i40e_is_vsi_uplink_mode_veb(vsi
))) {
9267 ctxt
.info
.valid_sections
|=
9268 cpu_to_le16(I40E_AQ_VSI_PROP_SWITCH_VALID
);
9269 ctxt
.info
.switch_id
=
9270 cpu_to_le16(I40E_AQ_VSI_SW_ID_FLAG_ALLOW_LB
);
9272 i40e_vsi_setup_queue_map(vsi
, &ctxt
, enabled_tc
, true);
9275 case I40E_VSI_VMDQ2
:
9276 ctxt
.pf_num
= hw
->pf_id
;
9278 ctxt
.uplink_seid
= vsi
->uplink_seid
;
9279 ctxt
.connection_type
= I40E_AQ_VSI_CONN_TYPE_NORMAL
;
9280 ctxt
.flags
= I40E_AQ_VSI_TYPE_VMDQ2
;
9282 /* This VSI is connected to VEB so the switch_id
9283 * should be set to zero by default.
9285 if (i40e_is_vsi_uplink_mode_veb(vsi
)) {
9286 ctxt
.info
.valid_sections
|=
9287 cpu_to_le16(I40E_AQ_VSI_PROP_SWITCH_VALID
);
9288 ctxt
.info
.switch_id
=
9289 cpu_to_le16(I40E_AQ_VSI_SW_ID_FLAG_ALLOW_LB
);
9292 /* Setup the VSI tx/rx queue map for TC0 only for now */
9293 i40e_vsi_setup_queue_map(vsi
, &ctxt
, enabled_tc
, true);
9296 case I40E_VSI_SRIOV
:
9297 ctxt
.pf_num
= hw
->pf_id
;
9298 ctxt
.vf_num
= vsi
->vf_id
+ hw
->func_caps
.vf_base_id
;
9299 ctxt
.uplink_seid
= vsi
->uplink_seid
;
9300 ctxt
.connection_type
= I40E_AQ_VSI_CONN_TYPE_NORMAL
;
9301 ctxt
.flags
= I40E_AQ_VSI_TYPE_VF
;
9303 /* This VSI is connected to VEB so the switch_id
9304 * should be set to zero by default.
9306 if (i40e_is_vsi_uplink_mode_veb(vsi
)) {
9307 ctxt
.info
.valid_sections
|=
9308 cpu_to_le16(I40E_AQ_VSI_PROP_SWITCH_VALID
);
9309 ctxt
.info
.switch_id
=
9310 cpu_to_le16(I40E_AQ_VSI_SW_ID_FLAG_ALLOW_LB
);
9313 ctxt
.info
.valid_sections
|= cpu_to_le16(I40E_AQ_VSI_PROP_VLAN_VALID
);
9314 ctxt
.info
.port_vlan_flags
|= I40E_AQ_VSI_PVLAN_MODE_ALL
;
9315 if (pf
->vf
[vsi
->vf_id
].spoofchk
) {
9316 ctxt
.info
.valid_sections
|=
9317 cpu_to_le16(I40E_AQ_VSI_PROP_SECURITY_VALID
);
9318 ctxt
.info
.sec_flags
|=
9319 (I40E_AQ_VSI_SEC_FLAG_ENABLE_VLAN_CHK
|
9320 I40E_AQ_VSI_SEC_FLAG_ENABLE_MAC_CHK
);
9322 /* Setup the VSI tx/rx queue map for TC0 only for now */
9323 i40e_vsi_setup_queue_map(vsi
, &ctxt
, enabled_tc
, true);
9328 ret
= i40e_fcoe_vsi_init(vsi
, &ctxt
);
9330 dev_info(&pf
->pdev
->dev
, "failed to initialize FCoE VSI\n");
9335 #endif /* I40E_FCOE */
9340 if (vsi
->type
!= I40E_VSI_MAIN
) {
9341 ret
= i40e_aq_add_vsi(hw
, &ctxt
, NULL
);
9343 dev_info(&vsi
->back
->pdev
->dev
,
9344 "add vsi failed, err %s aq_err %s\n",
9345 i40e_stat_str(&pf
->hw
, ret
),
9346 i40e_aq_str(&pf
->hw
,
9347 pf
->hw
.aq
.asq_last_status
));
9351 vsi
->info
= ctxt
.info
;
9352 vsi
->info
.valid_sections
= 0;
9353 vsi
->seid
= ctxt
.seid
;
9354 vsi
->id
= ctxt
.vsi_number
;
9357 spin_lock_bh(&vsi
->mac_filter_list_lock
);
9358 /* If macvlan filters already exist, force them to get loaded */
9359 list_for_each_entry_safe(f
, ftmp
, &vsi
->mac_filter_list
, list
) {
9363 /* Expected to have only one MAC filter entry for LAA in list */
9364 if (f
->is_laa
&& vsi
->type
== I40E_VSI_MAIN
) {
9365 ether_addr_copy(laa_macaddr
, f
->macaddr
);
9366 found_laa_mac_filter
= true;
9369 spin_unlock_bh(&vsi
->mac_filter_list_lock
);
9371 if (found_laa_mac_filter
) {
9372 struct i40e_aqc_remove_macvlan_element_data element
;
9374 memset(&element
, 0, sizeof(element
));
9375 ether_addr_copy(element
.mac_addr
, laa_macaddr
);
9376 element
.flags
= I40E_AQC_MACVLAN_DEL_PERFECT_MATCH
;
9377 ret
= i40e_aq_remove_macvlan(hw
, vsi
->seid
,
9380 /* some older FW has a different default */
9382 I40E_AQC_MACVLAN_DEL_IGNORE_VLAN
;
9383 i40e_aq_remove_macvlan(hw
, vsi
->seid
,
9387 i40e_aq_mac_address_write(hw
,
9388 I40E_AQC_WRITE_TYPE_LAA_WOL
,
9393 vsi
->flags
|= I40E_VSI_FLAG_FILTER_CHANGED
;
9394 pf
->flags
|= I40E_FLAG_FILTER_SYNC
;
9397 /* Update VSI BW information */
9398 ret
= i40e_vsi_get_bw_info(vsi
);
9400 dev_info(&pf
->pdev
->dev
,
9401 "couldn't get vsi bw info, err %s aq_err %s\n",
9402 i40e_stat_str(&pf
->hw
, ret
),
9403 i40e_aq_str(&pf
->hw
, pf
->hw
.aq
.asq_last_status
));
9404 /* VSI is already added so not tearing that up */
9413 * i40e_vsi_release - Delete a VSI and free its resources
9414 * @vsi: the VSI being removed
9416 * Returns 0 on success or < 0 on error
9418 int i40e_vsi_release(struct i40e_vsi
*vsi
)
9420 struct i40e_mac_filter
*f
, *ftmp
;
9421 struct i40e_veb
*veb
= NULL
;
9428 /* release of a VEB-owner or last VSI is not allowed */
9429 if (vsi
->flags
& I40E_VSI_FLAG_VEB_OWNER
) {
9430 dev_info(&pf
->pdev
->dev
, "VSI %d has existing VEB %d\n",
9431 vsi
->seid
, vsi
->uplink_seid
);
9434 if (vsi
== pf
->vsi
[pf
->lan_vsi
] &&
9435 !test_bit(__I40E_DOWN
, &pf
->state
)) {
9436 dev_info(&pf
->pdev
->dev
, "Can't remove PF VSI\n");
9440 uplink_seid
= vsi
->uplink_seid
;
9441 if (vsi
->type
!= I40E_VSI_SRIOV
) {
9442 if (vsi
->netdev_registered
) {
9443 vsi
->netdev_registered
= false;
9445 /* results in a call to i40e_close() */
9446 unregister_netdev(vsi
->netdev
);
9449 i40e_vsi_close(vsi
);
9451 i40e_vsi_disable_irq(vsi
);
9454 spin_lock_bh(&vsi
->mac_filter_list_lock
);
9455 list_for_each_entry_safe(f
, ftmp
, &vsi
->mac_filter_list
, list
)
9456 i40e_del_filter(vsi
, f
->macaddr
, f
->vlan
,
9457 f
->is_vf
, f
->is_netdev
);
9458 spin_unlock_bh(&vsi
->mac_filter_list_lock
);
9460 i40e_sync_vsi_filters(vsi
);
9462 i40e_vsi_delete(vsi
);
9463 i40e_vsi_free_q_vectors(vsi
);
9465 free_netdev(vsi
->netdev
);
9468 i40e_vsi_clear_rings(vsi
);
9469 i40e_vsi_clear(vsi
);
9471 /* If this was the last thing on the VEB, except for the
9472 * controlling VSI, remove the VEB, which puts the controlling
9473 * VSI onto the next level down in the switch.
9475 * Well, okay, there's one more exception here: don't remove
9476 * the orphan VEBs yet. We'll wait for an explicit remove request
9477 * from up the network stack.
9479 for (n
= 0, i
= 0; i
< pf
->num_alloc_vsi
; i
++) {
9481 pf
->vsi
[i
]->uplink_seid
== uplink_seid
&&
9482 (pf
->vsi
[i
]->flags
& I40E_VSI_FLAG_VEB_OWNER
) == 0) {
9483 n
++; /* count the VSIs */
9486 for (i
= 0; i
< I40E_MAX_VEB
; i
++) {
9489 if (pf
->veb
[i
]->uplink_seid
== uplink_seid
)
9490 n
++; /* count the VEBs */
9491 if (pf
->veb
[i
]->seid
== uplink_seid
)
9494 if (n
== 0 && veb
&& veb
->uplink_seid
!= 0)
9495 i40e_veb_release(veb
);
9501 * i40e_vsi_setup_vectors - Set up the q_vectors for the given VSI
9502 * @vsi: ptr to the VSI
9504 * This should only be called after i40e_vsi_mem_alloc() which allocates the
9505 * corresponding SW VSI structure and initializes num_queue_pairs for the
9506 * newly allocated VSI.
9508 * Returns 0 on success or negative on failure
9510 static int i40e_vsi_setup_vectors(struct i40e_vsi
*vsi
)
9513 struct i40e_pf
*pf
= vsi
->back
;
9515 if (vsi
->q_vectors
[0]) {
9516 dev_info(&pf
->pdev
->dev
, "VSI %d has existing q_vectors\n",
9521 if (vsi
->base_vector
) {
9522 dev_info(&pf
->pdev
->dev
, "VSI %d has non-zero base vector %d\n",
9523 vsi
->seid
, vsi
->base_vector
);
9527 ret
= i40e_vsi_alloc_q_vectors(vsi
);
9529 dev_info(&pf
->pdev
->dev
,
9530 "failed to allocate %d q_vector for VSI %d, ret=%d\n",
9531 vsi
->num_q_vectors
, vsi
->seid
, ret
);
9532 vsi
->num_q_vectors
= 0;
9533 goto vector_setup_out
;
9536 /* In Legacy mode, we do not have to get any other vector since we
9537 * piggyback on the misc/ICR0 for queue interrupts.
9539 if (!(pf
->flags
& I40E_FLAG_MSIX_ENABLED
))
9541 if (vsi
->num_q_vectors
)
9542 vsi
->base_vector
= i40e_get_lump(pf
, pf
->irq_pile
,
9543 vsi
->num_q_vectors
, vsi
->idx
);
9544 if (vsi
->base_vector
< 0) {
9545 dev_info(&pf
->pdev
->dev
,
9546 "failed to get tracking for %d vectors for VSI %d, err=%d\n",
9547 vsi
->num_q_vectors
, vsi
->seid
, vsi
->base_vector
);
9548 i40e_vsi_free_q_vectors(vsi
);
9550 goto vector_setup_out
;
9558 * i40e_vsi_reinit_setup - return and reallocate resources for a VSI
9559 * @vsi: pointer to the vsi.
9561 * This re-allocates a vsi's queue resources.
9563 * Returns pointer to the successfully allocated and configured VSI sw struct
9564 * on success, otherwise returns NULL on failure.
9566 static struct i40e_vsi
*i40e_vsi_reinit_setup(struct i40e_vsi
*vsi
)
9568 struct i40e_pf
*pf
= vsi
->back
;
9572 i40e_put_lump(pf
->qp_pile
, vsi
->base_queue
, vsi
->idx
);
9573 i40e_vsi_clear_rings(vsi
);
9575 i40e_vsi_free_arrays(vsi
, false);
9576 i40e_set_num_rings_in_vsi(vsi
);
9577 ret
= i40e_vsi_alloc_arrays(vsi
, false);
9581 ret
= i40e_get_lump(pf
, pf
->qp_pile
, vsi
->alloc_queue_pairs
, vsi
->idx
);
9583 dev_info(&pf
->pdev
->dev
,
9584 "failed to get tracking for %d queues for VSI %d err %d\n",
9585 vsi
->alloc_queue_pairs
, vsi
->seid
, ret
);
9588 vsi
->base_queue
= ret
;
9590 /* Update the FW view of the VSI. Force a reset of TC and queue
9591 * layout configurations.
9593 enabled_tc
= pf
->vsi
[pf
->lan_vsi
]->tc_config
.enabled_tc
;
9594 pf
->vsi
[pf
->lan_vsi
]->tc_config
.enabled_tc
= 0;
9595 pf
->vsi
[pf
->lan_vsi
]->seid
= pf
->main_vsi_seid
;
9596 i40e_vsi_config_tc(pf
->vsi
[pf
->lan_vsi
], enabled_tc
);
9598 /* assign it some queues */
9599 ret
= i40e_alloc_rings(vsi
);
9603 /* map all of the rings to the q_vectors */
9604 i40e_vsi_map_rings_to_vectors(vsi
);
9608 i40e_vsi_free_q_vectors(vsi
);
9609 if (vsi
->netdev_registered
) {
9610 vsi
->netdev_registered
= false;
9611 unregister_netdev(vsi
->netdev
);
9612 free_netdev(vsi
->netdev
);
9615 i40e_aq_delete_element(&pf
->hw
, vsi
->seid
, NULL
);
9617 i40e_vsi_clear(vsi
);
9622 * i40e_macaddr_init - explicitly write the mac address filters.
9624 * @vsi: pointer to the vsi.
9625 * @macaddr: the MAC address
9627 * This is needed when the macaddr has been obtained by other
9628 * means than the default, e.g., from Open Firmware or IDPROM.
9629 * Returns 0 on success, negative on failure
9631 static int i40e_macaddr_init(struct i40e_vsi
*vsi
, u8
*macaddr
)
9634 struct i40e_aqc_add_macvlan_element_data element
;
9636 ret
= i40e_aq_mac_address_write(&vsi
->back
->hw
,
9637 I40E_AQC_WRITE_TYPE_LAA_WOL
,
9640 dev_info(&vsi
->back
->pdev
->dev
,
9641 "Addr change for VSI failed: %d\n", ret
);
9642 return -EADDRNOTAVAIL
;
9645 memset(&element
, 0, sizeof(element
));
9646 ether_addr_copy(element
.mac_addr
, macaddr
);
9647 element
.flags
= cpu_to_le16(I40E_AQC_MACVLAN_ADD_PERFECT_MATCH
);
9648 ret
= i40e_aq_add_macvlan(&vsi
->back
->hw
, vsi
->seid
, &element
, 1, NULL
);
9650 dev_info(&vsi
->back
->pdev
->dev
,
9651 "add filter failed err %s aq_err %s\n",
9652 i40e_stat_str(&vsi
->back
->hw
, ret
),
9653 i40e_aq_str(&vsi
->back
->hw
,
9654 vsi
->back
->hw
.aq
.asq_last_status
));
9660 * i40e_vsi_setup - Set up a VSI by a given type
9661 * @pf: board private structure
9663 * @uplink_seid: the switch element to link to
9664 * @param1: usage depends upon VSI type. For VF types, indicates VF id
9666 * This allocates the sw VSI structure and its queue resources, then add a VSI
9667 * to the identified VEB.
9669 * Returns pointer to the successfully allocated and configure VSI sw struct on
9670 * success, otherwise returns NULL on failure.
9672 struct i40e_vsi
*i40e_vsi_setup(struct i40e_pf
*pf
, u8 type
,
9673 u16 uplink_seid
, u32 param1
)
9675 struct i40e_vsi
*vsi
= NULL
;
9676 struct i40e_veb
*veb
= NULL
;
9680 /* The requested uplink_seid must be either
9681 * - the PF's port seid
9682 * no VEB is needed because this is the PF
9683 * or this is a Flow Director special case VSI
9684 * - seid of an existing VEB
9685 * - seid of a VSI that owns an existing VEB
9686 * - seid of a VSI that doesn't own a VEB
9687 * a new VEB is created and the VSI becomes the owner
9688 * - seid of the PF VSI, which is what creates the first VEB
9689 * this is a special case of the previous
9691 * Find which uplink_seid we were given and create a new VEB if needed
9693 for (i
= 0; i
< I40E_MAX_VEB
; i
++) {
9694 if (pf
->veb
[i
] && pf
->veb
[i
]->seid
== uplink_seid
) {
9700 if (!veb
&& uplink_seid
!= pf
->mac_seid
) {
9702 for (i
= 0; i
< pf
->num_alloc_vsi
; i
++) {
9703 if (pf
->vsi
[i
] && pf
->vsi
[i
]->seid
== uplink_seid
) {
9709 dev_info(&pf
->pdev
->dev
, "no such uplink_seid %d\n",
9714 if (vsi
->uplink_seid
== pf
->mac_seid
)
9715 veb
= i40e_veb_setup(pf
, 0, pf
->mac_seid
, vsi
->seid
,
9716 vsi
->tc_config
.enabled_tc
);
9717 else if ((vsi
->flags
& I40E_VSI_FLAG_VEB_OWNER
) == 0)
9718 veb
= i40e_veb_setup(pf
, 0, vsi
->uplink_seid
, vsi
->seid
,
9719 vsi
->tc_config
.enabled_tc
);
9721 if (vsi
->seid
!= pf
->vsi
[pf
->lan_vsi
]->seid
) {
9722 dev_info(&vsi
->back
->pdev
->dev
,
9723 "New VSI creation error, uplink seid of LAN VSI expected.\n");
9726 /* We come up by default in VEPA mode if SRIOV is not
9727 * already enabled, in which case we can't force VEPA
9730 if (!(pf
->flags
& I40E_FLAG_VEB_MODE_ENABLED
)) {
9731 veb
->bridge_mode
= BRIDGE_MODE_VEPA
;
9732 pf
->flags
&= ~I40E_FLAG_VEB_MODE_ENABLED
;
9734 i40e_config_bridge_mode(veb
);
9736 for (i
= 0; i
< I40E_MAX_VEB
&& !veb
; i
++) {
9737 if (pf
->veb
[i
] && pf
->veb
[i
]->seid
== vsi
->uplink_seid
)
9741 dev_info(&pf
->pdev
->dev
, "couldn't add VEB\n");
9745 vsi
->flags
|= I40E_VSI_FLAG_VEB_OWNER
;
9746 uplink_seid
= veb
->seid
;
9749 /* get vsi sw struct */
9750 v_idx
= i40e_vsi_mem_alloc(pf
, type
);
9753 vsi
= pf
->vsi
[v_idx
];
9757 vsi
->veb_idx
= (veb
? veb
->idx
: I40E_NO_VEB
);
9759 if (type
== I40E_VSI_MAIN
)
9760 pf
->lan_vsi
= v_idx
;
9761 else if (type
== I40E_VSI_SRIOV
)
9762 vsi
->vf_id
= param1
;
9763 /* assign it some queues */
9764 ret
= i40e_get_lump(pf
, pf
->qp_pile
, vsi
->alloc_queue_pairs
,
9767 dev_info(&pf
->pdev
->dev
,
9768 "failed to get tracking for %d queues for VSI %d err=%d\n",
9769 vsi
->alloc_queue_pairs
, vsi
->seid
, ret
);
9772 vsi
->base_queue
= ret
;
9774 /* get a VSI from the hardware */
9775 vsi
->uplink_seid
= uplink_seid
;
9776 ret
= i40e_add_vsi(vsi
);
9780 switch (vsi
->type
) {
9781 /* setup the netdev if needed */
9783 /* Apply relevant filters if a platform-specific mac
9784 * address was selected.
9786 if (!!(pf
->flags
& I40E_FLAG_PF_MAC
)) {
9787 ret
= i40e_macaddr_init(vsi
, pf
->hw
.mac
.addr
);
9789 dev_warn(&pf
->pdev
->dev
,
9790 "could not set up macaddr; err %d\n",
9794 case I40E_VSI_VMDQ2
:
9796 ret
= i40e_config_netdev(vsi
);
9799 ret
= register_netdev(vsi
->netdev
);
9802 vsi
->netdev_registered
= true;
9803 netif_carrier_off(vsi
->netdev
);
9804 #ifdef CONFIG_I40E_DCB
9805 /* Setup DCB netlink interface */
9806 i40e_dcbnl_setup(vsi
);
9807 #endif /* CONFIG_I40E_DCB */
9811 /* set up vectors and rings if needed */
9812 ret
= i40e_vsi_setup_vectors(vsi
);
9816 ret
= i40e_alloc_rings(vsi
);
9820 /* map all of the rings to the q_vectors */
9821 i40e_vsi_map_rings_to_vectors(vsi
);
9823 i40e_vsi_reset_stats(vsi
);
9827 /* no netdev or rings for the other VSI types */
9831 if ((pf
->flags
& I40E_FLAG_RSS_AQ_CAPABLE
) &&
9832 (vsi
->type
== I40E_VSI_VMDQ2
)) {
9833 ret
= i40e_vsi_config_rss(vsi
);
9838 i40e_vsi_free_q_vectors(vsi
);
9840 if (vsi
->netdev_registered
) {
9841 vsi
->netdev_registered
= false;
9842 unregister_netdev(vsi
->netdev
);
9843 free_netdev(vsi
->netdev
);
9847 i40e_aq_delete_element(&pf
->hw
, vsi
->seid
, NULL
);
9849 i40e_vsi_clear(vsi
);
9855 * i40e_veb_get_bw_info - Query VEB BW information
9856 * @veb: the veb to query
9858 * Query the Tx scheduler BW configuration data for given VEB
9860 static int i40e_veb_get_bw_info(struct i40e_veb
*veb
)
9862 struct i40e_aqc_query_switching_comp_ets_config_resp ets_data
;
9863 struct i40e_aqc_query_switching_comp_bw_config_resp bw_data
;
9864 struct i40e_pf
*pf
= veb
->pf
;
9865 struct i40e_hw
*hw
= &pf
->hw
;
9870 ret
= i40e_aq_query_switch_comp_bw_config(hw
, veb
->seid
,
9873 dev_info(&pf
->pdev
->dev
,
9874 "query veb bw config failed, err %s aq_err %s\n",
9875 i40e_stat_str(&pf
->hw
, ret
),
9876 i40e_aq_str(&pf
->hw
, hw
->aq
.asq_last_status
));
9880 ret
= i40e_aq_query_switch_comp_ets_config(hw
, veb
->seid
,
9883 dev_info(&pf
->pdev
->dev
,
9884 "query veb bw ets config failed, err %s aq_err %s\n",
9885 i40e_stat_str(&pf
->hw
, ret
),
9886 i40e_aq_str(&pf
->hw
, hw
->aq
.asq_last_status
));
9890 veb
->bw_limit
= le16_to_cpu(ets_data
.port_bw_limit
);
9891 veb
->bw_max_quanta
= ets_data
.tc_bw_max
;
9892 veb
->is_abs_credits
= bw_data
.absolute_credits_enable
;
9893 veb
->enabled_tc
= ets_data
.tc_valid_bits
;
9894 tc_bw_max
= le16_to_cpu(bw_data
.tc_bw_max
[0]) |
9895 (le16_to_cpu(bw_data
.tc_bw_max
[1]) << 16);
9896 for (i
= 0; i
< I40E_MAX_TRAFFIC_CLASS
; i
++) {
9897 veb
->bw_tc_share_credits
[i
] = bw_data
.tc_bw_share_credits
[i
];
9898 veb
->bw_tc_limit_credits
[i
] =
9899 le16_to_cpu(bw_data
.tc_bw_limits
[i
]);
9900 veb
->bw_tc_max_quanta
[i
] = ((tc_bw_max
>> (i
*4)) & 0x7);
9908 * i40e_veb_mem_alloc - Allocates the next available struct veb in the PF
9909 * @pf: board private structure
9911 * On error: returns error code (negative)
9912 * On success: returns vsi index in PF (positive)
9914 static int i40e_veb_mem_alloc(struct i40e_pf
*pf
)
9917 struct i40e_veb
*veb
;
9920 /* Need to protect the allocation of switch elements at the PF level */
9921 mutex_lock(&pf
->switch_mutex
);
9923 /* VEB list may be fragmented if VEB creation/destruction has
9924 * been happening. We can afford to do a quick scan to look
9925 * for any free slots in the list.
9927 * find next empty veb slot, looping back around if necessary
9930 while ((i
< I40E_MAX_VEB
) && (pf
->veb
[i
] != NULL
))
9932 if (i
>= I40E_MAX_VEB
) {
9934 goto err_alloc_veb
; /* out of VEB slots! */
9937 veb
= kzalloc(sizeof(*veb
), GFP_KERNEL
);
9944 veb
->enabled_tc
= 1;
9949 mutex_unlock(&pf
->switch_mutex
);
9954 * i40e_switch_branch_release - Delete a branch of the switch tree
9955 * @branch: where to start deleting
9957 * This uses recursion to find the tips of the branch to be
9958 * removed, deleting until we get back to and can delete this VEB.
9960 static void i40e_switch_branch_release(struct i40e_veb
*branch
)
9962 struct i40e_pf
*pf
= branch
->pf
;
9963 u16 branch_seid
= branch
->seid
;
9964 u16 veb_idx
= branch
->idx
;
9967 /* release any VEBs on this VEB - RECURSION */
9968 for (i
= 0; i
< I40E_MAX_VEB
; i
++) {
9971 if (pf
->veb
[i
]->uplink_seid
== branch
->seid
)
9972 i40e_switch_branch_release(pf
->veb
[i
]);
9975 /* Release the VSIs on this VEB, but not the owner VSI.
9977 * NOTE: Removing the last VSI on a VEB has the SIDE EFFECT of removing
9978 * the VEB itself, so don't use (*branch) after this loop.
9980 for (i
= 0; i
< pf
->num_alloc_vsi
; i
++) {
9983 if (pf
->vsi
[i
]->uplink_seid
== branch_seid
&&
9984 (pf
->vsi
[i
]->flags
& I40E_VSI_FLAG_VEB_OWNER
) == 0) {
9985 i40e_vsi_release(pf
->vsi
[i
]);
9989 /* There's one corner case where the VEB might not have been
9990 * removed, so double check it here and remove it if needed.
9991 * This case happens if the veb was created from the debugfs
9992 * commands and no VSIs were added to it.
9994 if (pf
->veb
[veb_idx
])
9995 i40e_veb_release(pf
->veb
[veb_idx
]);
9999 * i40e_veb_clear - remove veb struct
10000 * @veb: the veb to remove
10002 static void i40e_veb_clear(struct i40e_veb
*veb
)
10008 struct i40e_pf
*pf
= veb
->pf
;
10010 mutex_lock(&pf
->switch_mutex
);
10011 if (pf
->veb
[veb
->idx
] == veb
)
10012 pf
->veb
[veb
->idx
] = NULL
;
10013 mutex_unlock(&pf
->switch_mutex
);
10020 * i40e_veb_release - Delete a VEB and free its resources
10021 * @veb: the VEB being removed
10023 void i40e_veb_release(struct i40e_veb
*veb
)
10025 struct i40e_vsi
*vsi
= NULL
;
10026 struct i40e_pf
*pf
;
10031 /* find the remaining VSI and check for extras */
10032 for (i
= 0; i
< pf
->num_alloc_vsi
; i
++) {
10033 if (pf
->vsi
[i
] && pf
->vsi
[i
]->uplink_seid
== veb
->seid
) {
10039 dev_info(&pf
->pdev
->dev
,
10040 "can't remove VEB %d with %d VSIs left\n",
10045 /* move the remaining VSI to uplink veb */
10046 vsi
->flags
&= ~I40E_VSI_FLAG_VEB_OWNER
;
10047 if (veb
->uplink_seid
) {
10048 vsi
->uplink_seid
= veb
->uplink_seid
;
10049 if (veb
->uplink_seid
== pf
->mac_seid
)
10050 vsi
->veb_idx
= I40E_NO_VEB
;
10052 vsi
->veb_idx
= veb
->veb_idx
;
10055 vsi
->uplink_seid
= pf
->vsi
[pf
->lan_vsi
]->uplink_seid
;
10056 vsi
->veb_idx
= pf
->vsi
[pf
->lan_vsi
]->veb_idx
;
10059 i40e_aq_delete_element(&pf
->hw
, veb
->seid
, NULL
);
10060 i40e_veb_clear(veb
);
10064 * i40e_add_veb - create the VEB in the switch
10065 * @veb: the VEB to be instantiated
10066 * @vsi: the controlling VSI
10068 static int i40e_add_veb(struct i40e_veb
*veb
, struct i40e_vsi
*vsi
)
10070 struct i40e_pf
*pf
= veb
->pf
;
10071 bool is_default
= veb
->pf
->cur_promisc
;
10072 bool is_cloud
= false;
10075 /* get a VEB from the hardware */
10076 ret
= i40e_aq_add_veb(&pf
->hw
, veb
->uplink_seid
, vsi
->seid
,
10077 veb
->enabled_tc
, is_default
,
10078 &veb
->seid
, is_cloud
, NULL
);
10080 dev_info(&pf
->pdev
->dev
,
10081 "couldn't add VEB, err %s aq_err %s\n",
10082 i40e_stat_str(&pf
->hw
, ret
),
10083 i40e_aq_str(&pf
->hw
, pf
->hw
.aq
.asq_last_status
));
10087 /* get statistics counter */
10088 ret
= i40e_aq_get_veb_parameters(&pf
->hw
, veb
->seid
, NULL
, NULL
,
10089 &veb
->stats_idx
, NULL
, NULL
, NULL
);
10091 dev_info(&pf
->pdev
->dev
,
10092 "couldn't get VEB statistics idx, err %s aq_err %s\n",
10093 i40e_stat_str(&pf
->hw
, ret
),
10094 i40e_aq_str(&pf
->hw
, pf
->hw
.aq
.asq_last_status
));
10097 ret
= i40e_veb_get_bw_info(veb
);
10099 dev_info(&pf
->pdev
->dev
,
10100 "couldn't get VEB bw info, err %s aq_err %s\n",
10101 i40e_stat_str(&pf
->hw
, ret
),
10102 i40e_aq_str(&pf
->hw
, pf
->hw
.aq
.asq_last_status
));
10103 i40e_aq_delete_element(&pf
->hw
, veb
->seid
, NULL
);
10107 vsi
->uplink_seid
= veb
->seid
;
10108 vsi
->veb_idx
= veb
->idx
;
10109 vsi
->flags
|= I40E_VSI_FLAG_VEB_OWNER
;
10115 * i40e_veb_setup - Set up a VEB
10116 * @pf: board private structure
10117 * @flags: VEB setup flags
10118 * @uplink_seid: the switch element to link to
10119 * @vsi_seid: the initial VSI seid
10120 * @enabled_tc: Enabled TC bit-map
10122 * This allocates the sw VEB structure and links it into the switch
10123 * It is possible and legal for this to be a duplicate of an already
10124 * existing VEB. It is also possible for both uplink and vsi seids
10125 * to be zero, in order to create a floating VEB.
10127 * Returns pointer to the successfully allocated VEB sw struct on
10128 * success, otherwise returns NULL on failure.
10130 struct i40e_veb
*i40e_veb_setup(struct i40e_pf
*pf
, u16 flags
,
10131 u16 uplink_seid
, u16 vsi_seid
,
10134 struct i40e_veb
*veb
, *uplink_veb
= NULL
;
10135 int vsi_idx
, veb_idx
;
10138 /* if one seid is 0, the other must be 0 to create a floating relay */
10139 if ((uplink_seid
== 0 || vsi_seid
== 0) &&
10140 (uplink_seid
+ vsi_seid
!= 0)) {
10141 dev_info(&pf
->pdev
->dev
,
10142 "one, not both seid's are 0: uplink=%d vsi=%d\n",
10143 uplink_seid
, vsi_seid
);
10147 /* make sure there is such a vsi and uplink */
10148 for (vsi_idx
= 0; vsi_idx
< pf
->num_alloc_vsi
; vsi_idx
++)
10149 if (pf
->vsi
[vsi_idx
] && pf
->vsi
[vsi_idx
]->seid
== vsi_seid
)
10151 if (vsi_idx
>= pf
->num_alloc_vsi
&& vsi_seid
!= 0) {
10152 dev_info(&pf
->pdev
->dev
, "vsi seid %d not found\n",
10157 if (uplink_seid
&& uplink_seid
!= pf
->mac_seid
) {
10158 for (veb_idx
= 0; veb_idx
< I40E_MAX_VEB
; veb_idx
++) {
10159 if (pf
->veb
[veb_idx
] &&
10160 pf
->veb
[veb_idx
]->seid
== uplink_seid
) {
10161 uplink_veb
= pf
->veb
[veb_idx
];
10166 dev_info(&pf
->pdev
->dev
,
10167 "uplink seid %d not found\n", uplink_seid
);
10172 /* get veb sw struct */
10173 veb_idx
= i40e_veb_mem_alloc(pf
);
10176 veb
= pf
->veb
[veb_idx
];
10177 veb
->flags
= flags
;
10178 veb
->uplink_seid
= uplink_seid
;
10179 veb
->veb_idx
= (uplink_veb
? uplink_veb
->idx
: I40E_NO_VEB
);
10180 veb
->enabled_tc
= (enabled_tc
? enabled_tc
: 0x1);
10182 /* create the VEB in the switch */
10183 ret
= i40e_add_veb(veb
, pf
->vsi
[vsi_idx
]);
10186 if (vsi_idx
== pf
->lan_vsi
)
10187 pf
->lan_veb
= veb
->idx
;
10192 i40e_veb_clear(veb
);
10198 * i40e_setup_pf_switch_element - set PF vars based on switch type
10199 * @pf: board private structure
10200 * @ele: element we are building info from
10201 * @num_reported: total number of elements
10202 * @printconfig: should we print the contents
10204 * helper function to assist in extracting a few useful SEID values.
10206 static void i40e_setup_pf_switch_element(struct i40e_pf
*pf
,
10207 struct i40e_aqc_switch_config_element_resp
*ele
,
10208 u16 num_reported
, bool printconfig
)
10210 u16 downlink_seid
= le16_to_cpu(ele
->downlink_seid
);
10211 u16 uplink_seid
= le16_to_cpu(ele
->uplink_seid
);
10212 u8 element_type
= ele
->element_type
;
10213 u16 seid
= le16_to_cpu(ele
->seid
);
10216 dev_info(&pf
->pdev
->dev
,
10217 "type=%d seid=%d uplink=%d downlink=%d\n",
10218 element_type
, seid
, uplink_seid
, downlink_seid
);
10220 switch (element_type
) {
10221 case I40E_SWITCH_ELEMENT_TYPE_MAC
:
10222 pf
->mac_seid
= seid
;
10224 case I40E_SWITCH_ELEMENT_TYPE_VEB
:
10226 if (uplink_seid
!= pf
->mac_seid
)
10228 if (pf
->lan_veb
== I40E_NO_VEB
) {
10231 /* find existing or else empty VEB */
10232 for (v
= 0; v
< I40E_MAX_VEB
; v
++) {
10233 if (pf
->veb
[v
] && (pf
->veb
[v
]->seid
== seid
)) {
10238 if (pf
->lan_veb
== I40E_NO_VEB
) {
10239 v
= i40e_veb_mem_alloc(pf
);
10246 pf
->veb
[pf
->lan_veb
]->seid
= seid
;
10247 pf
->veb
[pf
->lan_veb
]->uplink_seid
= pf
->mac_seid
;
10248 pf
->veb
[pf
->lan_veb
]->pf
= pf
;
10249 pf
->veb
[pf
->lan_veb
]->veb_idx
= I40E_NO_VEB
;
10251 case I40E_SWITCH_ELEMENT_TYPE_VSI
:
10252 if (num_reported
!= 1)
10254 /* This is immediately after a reset so we can assume this is
10257 pf
->mac_seid
= uplink_seid
;
10258 pf
->pf_seid
= downlink_seid
;
10259 pf
->main_vsi_seid
= seid
;
10261 dev_info(&pf
->pdev
->dev
,
10262 "pf_seid=%d main_vsi_seid=%d\n",
10263 pf
->pf_seid
, pf
->main_vsi_seid
);
10265 case I40E_SWITCH_ELEMENT_TYPE_PF
:
10266 case I40E_SWITCH_ELEMENT_TYPE_VF
:
10267 case I40E_SWITCH_ELEMENT_TYPE_EMP
:
10268 case I40E_SWITCH_ELEMENT_TYPE_BMC
:
10269 case I40E_SWITCH_ELEMENT_TYPE_PE
:
10270 case I40E_SWITCH_ELEMENT_TYPE_PA
:
10271 /* ignore these for now */
10274 dev_info(&pf
->pdev
->dev
, "unknown element type=%d seid=%d\n",
10275 element_type
, seid
);
10281 * i40e_fetch_switch_configuration - Get switch config from firmware
10282 * @pf: board private structure
10283 * @printconfig: should we print the contents
10285 * Get the current switch configuration from the device and
10286 * extract a few useful SEID values.
10288 int i40e_fetch_switch_configuration(struct i40e_pf
*pf
, bool printconfig
)
10290 struct i40e_aqc_get_switch_config_resp
*sw_config
;
10296 aq_buf
= kzalloc(I40E_AQ_LARGE_BUF
, GFP_KERNEL
);
10300 sw_config
= (struct i40e_aqc_get_switch_config_resp
*)aq_buf
;
10302 u16 num_reported
, num_total
;
10304 ret
= i40e_aq_get_switch_config(&pf
->hw
, sw_config
,
10308 dev_info(&pf
->pdev
->dev
,
10309 "get switch config failed err %s aq_err %s\n",
10310 i40e_stat_str(&pf
->hw
, ret
),
10311 i40e_aq_str(&pf
->hw
,
10312 pf
->hw
.aq
.asq_last_status
));
10317 num_reported
= le16_to_cpu(sw_config
->header
.num_reported
);
10318 num_total
= le16_to_cpu(sw_config
->header
.num_total
);
10321 dev_info(&pf
->pdev
->dev
,
10322 "header: %d reported %d total\n",
10323 num_reported
, num_total
);
10325 for (i
= 0; i
< num_reported
; i
++) {
10326 struct i40e_aqc_switch_config_element_resp
*ele
=
10327 &sw_config
->element
[i
];
10329 i40e_setup_pf_switch_element(pf
, ele
, num_reported
,
10332 } while (next_seid
!= 0);
10339 * i40e_setup_pf_switch - Setup the HW switch on startup or after reset
10340 * @pf: board private structure
10341 * @reinit: if the Main VSI needs to re-initialized.
10343 * Returns 0 on success, negative value on failure
10345 static int i40e_setup_pf_switch(struct i40e_pf
*pf
, bool reinit
)
10349 /* find out what's out there already */
10350 ret
= i40e_fetch_switch_configuration(pf
, false);
10352 dev_info(&pf
->pdev
->dev
,
10353 "couldn't fetch switch config, err %s aq_err %s\n",
10354 i40e_stat_str(&pf
->hw
, ret
),
10355 i40e_aq_str(&pf
->hw
, pf
->hw
.aq
.asq_last_status
));
10358 i40e_pf_reset_stats(pf
);
10360 /* first time setup */
10361 if (pf
->lan_vsi
== I40E_NO_VSI
|| reinit
) {
10362 struct i40e_vsi
*vsi
= NULL
;
10365 /* Set up the PF VSI associated with the PF's main VSI
10366 * that is already in the HW switch
10368 if (pf
->lan_veb
!= I40E_NO_VEB
&& pf
->veb
[pf
->lan_veb
])
10369 uplink_seid
= pf
->veb
[pf
->lan_veb
]->seid
;
10371 uplink_seid
= pf
->mac_seid
;
10372 if (pf
->lan_vsi
== I40E_NO_VSI
)
10373 vsi
= i40e_vsi_setup(pf
, I40E_VSI_MAIN
, uplink_seid
, 0);
10375 vsi
= i40e_vsi_reinit_setup(pf
->vsi
[pf
->lan_vsi
]);
10377 dev_info(&pf
->pdev
->dev
, "setup of MAIN VSI failed\n");
10378 i40e_fdir_teardown(pf
);
10382 /* force a reset of TC and queue layout configurations */
10383 u8 enabled_tc
= pf
->vsi
[pf
->lan_vsi
]->tc_config
.enabled_tc
;
10385 pf
->vsi
[pf
->lan_vsi
]->tc_config
.enabled_tc
= 0;
10386 pf
->vsi
[pf
->lan_vsi
]->seid
= pf
->main_vsi_seid
;
10387 i40e_vsi_config_tc(pf
->vsi
[pf
->lan_vsi
], enabled_tc
);
10389 i40e_vlan_stripping_disable(pf
->vsi
[pf
->lan_vsi
]);
10391 i40e_fdir_sb_setup(pf
);
10393 /* Setup static PF queue filter control settings */
10394 ret
= i40e_setup_pf_filter_control(pf
);
10396 dev_info(&pf
->pdev
->dev
, "setup_pf_filter_control failed: %d\n",
10398 /* Failure here should not stop continuing other steps */
10401 /* enable RSS in the HW, even for only one queue, as the stack can use
10404 if ((pf
->flags
& I40E_FLAG_RSS_ENABLED
))
10405 i40e_pf_config_rss(pf
);
10407 /* fill in link information and enable LSE reporting */
10408 i40e_update_link_info(&pf
->hw
);
10409 i40e_link_event(pf
);
10411 /* Initialize user-specific link properties */
10412 pf
->fc_autoneg_status
= ((pf
->hw
.phy
.link_info
.an_info
&
10413 I40E_AQ_AN_COMPLETED
) ? true : false);
10421 * i40e_determine_queue_usage - Work out queue distribution
10422 * @pf: board private structure
10424 static void i40e_determine_queue_usage(struct i40e_pf
*pf
)
10428 pf
->num_lan_qps
= 0;
10430 pf
->num_fcoe_qps
= 0;
10433 /* Find the max queues to be put into basic use. We'll always be
10434 * using TC0, whether or not DCB is running, and TC0 will get the
10437 queues_left
= pf
->hw
.func_caps
.num_tx_qp
;
10439 if ((queues_left
== 1) ||
10440 !(pf
->flags
& I40E_FLAG_MSIX_ENABLED
)) {
10441 /* one qp for PF, no queues for anything else */
10443 pf
->alloc_rss_size
= pf
->num_lan_qps
= 1;
10445 /* make sure all the fancies are disabled */
10446 pf
->flags
&= ~(I40E_FLAG_RSS_ENABLED
|
10448 I40E_FLAG_FCOE_ENABLED
|
10450 I40E_FLAG_FD_SB_ENABLED
|
10451 I40E_FLAG_FD_ATR_ENABLED
|
10452 I40E_FLAG_DCB_CAPABLE
|
10453 I40E_FLAG_SRIOV_ENABLED
|
10454 I40E_FLAG_VMDQ_ENABLED
);
10455 } else if (!(pf
->flags
& (I40E_FLAG_RSS_ENABLED
|
10456 I40E_FLAG_FD_SB_ENABLED
|
10457 I40E_FLAG_FD_ATR_ENABLED
|
10458 I40E_FLAG_DCB_CAPABLE
))) {
10459 /* one qp for PF */
10460 pf
->alloc_rss_size
= pf
->num_lan_qps
= 1;
10461 queues_left
-= pf
->num_lan_qps
;
10463 pf
->flags
&= ~(I40E_FLAG_RSS_ENABLED
|
10465 I40E_FLAG_FCOE_ENABLED
|
10467 I40E_FLAG_FD_SB_ENABLED
|
10468 I40E_FLAG_FD_ATR_ENABLED
|
10469 I40E_FLAG_DCB_ENABLED
|
10470 I40E_FLAG_VMDQ_ENABLED
);
10472 /* Not enough queues for all TCs */
10473 if ((pf
->flags
& I40E_FLAG_DCB_CAPABLE
) &&
10474 (queues_left
< I40E_MAX_TRAFFIC_CLASS
)) {
10475 pf
->flags
&= ~I40E_FLAG_DCB_CAPABLE
;
10476 dev_info(&pf
->pdev
->dev
, "not enough queues for DCB. DCB is disabled.\n");
10478 pf
->num_lan_qps
= max_t(int, pf
->rss_size_max
,
10479 num_online_cpus());
10480 pf
->num_lan_qps
= min_t(int, pf
->num_lan_qps
,
10481 pf
->hw
.func_caps
.num_tx_qp
);
10483 queues_left
-= pf
->num_lan_qps
;
10487 if (pf
->flags
& I40E_FLAG_FCOE_ENABLED
) {
10488 if (I40E_DEFAULT_FCOE
<= queues_left
) {
10489 pf
->num_fcoe_qps
= I40E_DEFAULT_FCOE
;
10490 } else if (I40E_MINIMUM_FCOE
<= queues_left
) {
10491 pf
->num_fcoe_qps
= I40E_MINIMUM_FCOE
;
10493 pf
->num_fcoe_qps
= 0;
10494 pf
->flags
&= ~I40E_FLAG_FCOE_ENABLED
;
10495 dev_info(&pf
->pdev
->dev
, "not enough queues for FCoE. FCoE feature will be disabled\n");
10498 queues_left
-= pf
->num_fcoe_qps
;
10502 if (pf
->flags
& I40E_FLAG_FD_SB_ENABLED
) {
10503 if (queues_left
> 1) {
10504 queues_left
-= 1; /* save 1 queue for FD */
10506 pf
->flags
&= ~I40E_FLAG_FD_SB_ENABLED
;
10507 dev_info(&pf
->pdev
->dev
, "not enough queues for Flow Director. Flow Director feature is disabled\n");
10511 if ((pf
->flags
& I40E_FLAG_SRIOV_ENABLED
) &&
10512 pf
->num_vf_qps
&& pf
->num_req_vfs
&& queues_left
) {
10513 pf
->num_req_vfs
= min_t(int, pf
->num_req_vfs
,
10514 (queues_left
/ pf
->num_vf_qps
));
10515 queues_left
-= (pf
->num_req_vfs
* pf
->num_vf_qps
);
10518 if ((pf
->flags
& I40E_FLAG_VMDQ_ENABLED
) &&
10519 pf
->num_vmdq_vsis
&& pf
->num_vmdq_qps
&& queues_left
) {
10520 pf
->num_vmdq_vsis
= min_t(int, pf
->num_vmdq_vsis
,
10521 (queues_left
/ pf
->num_vmdq_qps
));
10522 queues_left
-= (pf
->num_vmdq_vsis
* pf
->num_vmdq_qps
);
10525 pf
->queues_left
= queues_left
;
10526 dev_dbg(&pf
->pdev
->dev
,
10527 "qs_avail=%d FD SB=%d lan_qs=%d lan_tc0=%d vf=%d*%d vmdq=%d*%d, remaining=%d\n",
10528 pf
->hw
.func_caps
.num_tx_qp
,
10529 !!(pf
->flags
& I40E_FLAG_FD_SB_ENABLED
),
10530 pf
->num_lan_qps
, pf
->alloc_rss_size
, pf
->num_req_vfs
,
10531 pf
->num_vf_qps
, pf
->num_vmdq_vsis
, pf
->num_vmdq_qps
,
10534 dev_dbg(&pf
->pdev
->dev
, "fcoe queues = %d\n", pf
->num_fcoe_qps
);
10539 * i40e_setup_pf_filter_control - Setup PF static filter control
10540 * @pf: PF to be setup
10542 * i40e_setup_pf_filter_control sets up a PF's initial filter control
10543 * settings. If PE/FCoE are enabled then it will also set the per PF
10544 * based filter sizes required for them. It also enables Flow director,
10545 * ethertype and macvlan type filter settings for the pf.
10547 * Returns 0 on success, negative on failure
10549 static int i40e_setup_pf_filter_control(struct i40e_pf
*pf
)
10551 struct i40e_filter_control_settings
*settings
= &pf
->filter_settings
;
10553 settings
->hash_lut_size
= I40E_HASH_LUT_SIZE_128
;
10555 /* Flow Director is enabled */
10556 if (pf
->flags
& (I40E_FLAG_FD_SB_ENABLED
| I40E_FLAG_FD_ATR_ENABLED
))
10557 settings
->enable_fdir
= true;
10559 /* Ethtype and MACVLAN filters enabled for PF */
10560 settings
->enable_ethtype
= true;
10561 settings
->enable_macvlan
= true;
10563 if (i40e_set_filter_control(&pf
->hw
, settings
))
10569 #define INFO_STRING_LEN 255
10570 #define REMAIN(__x) (INFO_STRING_LEN - (__x))
10571 static void i40e_print_features(struct i40e_pf
*pf
)
10573 struct i40e_hw
*hw
= &pf
->hw
;
10577 buf
= kmalloc(INFO_STRING_LEN
, GFP_KERNEL
);
10581 i
= snprintf(buf
, INFO_STRING_LEN
, "Features: PF-id[%d]", hw
->pf_id
);
10582 #ifdef CONFIG_PCI_IOV
10583 i
+= snprintf(&buf
[i
], REMAIN(i
), " VFs: %d", pf
->num_req_vfs
);
10585 i
+= snprintf(&buf
[i
], REMAIN(i
), " VSIs: %d QP: %d RX: %s",
10586 pf
->hw
.func_caps
.num_vsis
,
10587 pf
->vsi
[pf
->lan_vsi
]->num_queue_pairs
,
10588 pf
->flags
& I40E_FLAG_RX_PS_ENABLED
? "PS" : "1BUF");
10590 if (pf
->flags
& I40E_FLAG_RSS_ENABLED
)
10591 i
+= snprintf(&buf
[i
], REMAIN(i
), " RSS");
10592 if (pf
->flags
& I40E_FLAG_FD_ATR_ENABLED
)
10593 i
+= snprintf(&buf
[i
], REMAIN(i
), " FD_ATR");
10594 if (pf
->flags
& I40E_FLAG_FD_SB_ENABLED
) {
10595 i
+= snprintf(&buf
[i
], REMAIN(i
), " FD_SB");
10596 i
+= snprintf(&buf
[i
], REMAIN(i
), " NTUPLE");
10598 if (pf
->flags
& I40E_FLAG_DCB_CAPABLE
)
10599 i
+= snprintf(&buf
[i
], REMAIN(i
), " DCB");
10600 #if IS_ENABLED(CONFIG_VXLAN)
10601 i
+= snprintf(&buf
[i
], REMAIN(i
), " VxLAN");
10603 #if IS_ENABLED(CONFIG_GENEVE)
10604 i
+= snprintf(&buf
[i
], REMAIN(i
), " Geneve");
10606 if (pf
->flags
& I40E_FLAG_PTP
)
10607 i
+= snprintf(&buf
[i
], REMAIN(i
), " PTP");
10609 if (pf
->flags
& I40E_FLAG_FCOE_ENABLED
)
10610 i
+= snprintf(&buf
[i
], REMAIN(i
), " FCOE");
10612 if (pf
->flags
& I40E_FLAG_VEB_MODE_ENABLED
)
10613 i
+= snprintf(&buf
[i
], REMAIN(i
), " VEB");
10615 i
+= snprintf(&buf
[i
], REMAIN(i
), " VEPA");
10617 dev_info(&pf
->pdev
->dev
, "%s\n", buf
);
10619 WARN_ON(i
> INFO_STRING_LEN
);
10623 * i40e_get_platform_mac_addr - get platform-specific MAC address
10625 * @pdev: PCI device information struct
10626 * @pf: board private structure
10628 * Look up the MAC address in Open Firmware on systems that support it,
10629 * and use IDPROM on SPARC if no OF address is found. On return, the
10630 * I40E_FLAG_PF_MAC will be wset in pf->flags if a platform-specific value
10631 * has been selected.
10633 static void i40e_get_platform_mac_addr(struct pci_dev
*pdev
, struct i40e_pf
*pf
)
10635 pf
->flags
&= ~I40E_FLAG_PF_MAC
;
10636 if (!eth_platform_get_mac_address(&pdev
->dev
, pf
->hw
.mac
.addr
))
10637 pf
->flags
|= I40E_FLAG_PF_MAC
;
10641 * i40e_probe - Device initialization routine
10642 * @pdev: PCI device information struct
10643 * @ent: entry in i40e_pci_tbl
10645 * i40e_probe initializes a PF identified by a pci_dev structure.
10646 * The OS initialization, configuring of the PF private structure,
10647 * and a hardware reset occur.
10649 * Returns 0 on success, negative on failure
10651 static int i40e_probe(struct pci_dev
*pdev
, const struct pci_device_id
*ent
)
10653 struct i40e_aq_get_phy_abilities_resp abilities
;
10654 struct i40e_pf
*pf
;
10655 struct i40e_hw
*hw
;
10656 static u16 pfs_found
;
10664 err
= pci_enable_device_mem(pdev
);
10668 /* set up for high or low dma */
10669 err
= dma_set_mask_and_coherent(&pdev
->dev
, DMA_BIT_MASK(64));
10671 err
= dma_set_mask_and_coherent(&pdev
->dev
, DMA_BIT_MASK(32));
10673 dev_err(&pdev
->dev
,
10674 "DMA configuration failed: 0x%x\n", err
);
10679 /* set up pci connections */
10680 err
= pci_request_selected_regions(pdev
, pci_select_bars(pdev
,
10681 IORESOURCE_MEM
), i40e_driver_name
);
10683 dev_info(&pdev
->dev
,
10684 "pci_request_selected_regions failed %d\n", err
);
10688 pci_enable_pcie_error_reporting(pdev
);
10689 pci_set_master(pdev
);
10691 /* Now that we have a PCI connection, we need to do the
10692 * low level device setup. This is primarily setting up
10693 * the Admin Queue structures and then querying for the
10694 * device's current profile information.
10696 pf
= kzalloc(sizeof(*pf
), GFP_KERNEL
);
10703 set_bit(__I40E_DOWN
, &pf
->state
);
10708 pf
->ioremap_len
= min_t(int, pci_resource_len(pdev
, 0),
10709 I40E_MAX_CSR_SPACE
);
10711 hw
->hw_addr
= ioremap(pci_resource_start(pdev
, 0), pf
->ioremap_len
);
10712 if (!hw
->hw_addr
) {
10714 dev_info(&pdev
->dev
, "ioremap(0x%04x, 0x%04x) failed: 0x%x\n",
10715 (unsigned int)pci_resource_start(pdev
, 0),
10716 pf
->ioremap_len
, err
);
10719 hw
->vendor_id
= pdev
->vendor
;
10720 hw
->device_id
= pdev
->device
;
10721 pci_read_config_byte(pdev
, PCI_REVISION_ID
, &hw
->revision_id
);
10722 hw
->subsystem_vendor_id
= pdev
->subsystem_vendor
;
10723 hw
->subsystem_device_id
= pdev
->subsystem_device
;
10724 hw
->bus
.device
= PCI_SLOT(pdev
->devfn
);
10725 hw
->bus
.func
= PCI_FUNC(pdev
->devfn
);
10726 pf
->instance
= pfs_found
;
10729 pf
->msg_enable
= pf
->hw
.debug_mask
;
10730 pf
->msg_enable
= debug
;
10733 /* do a special CORER for clearing PXE mode once at init */
10734 if (hw
->revision_id
== 0 &&
10735 (rd32(hw
, I40E_GLLAN_RCTL_0
) & I40E_GLLAN_RCTL_0_PXE_MODE_MASK
)) {
10736 wr32(hw
, I40E_GLGEN_RTRIG
, I40E_GLGEN_RTRIG_CORER_MASK
);
10741 i40e_clear_pxe_mode(hw
);
10744 /* Reset here to make sure all is clean and to define PF 'n' */
10746 err
= i40e_pf_reset(hw
);
10748 dev_info(&pdev
->dev
, "Initial pf_reset failed: %d\n", err
);
10753 hw
->aq
.num_arq_entries
= I40E_AQ_LEN
;
10754 hw
->aq
.num_asq_entries
= I40E_AQ_LEN
;
10755 hw
->aq
.arq_buf_size
= I40E_MAX_AQ_BUF_SIZE
;
10756 hw
->aq
.asq_buf_size
= I40E_MAX_AQ_BUF_SIZE
;
10757 pf
->adminq_work_limit
= I40E_AQ_WORK_LIMIT
;
10759 snprintf(pf
->int_name
, sizeof(pf
->int_name
) - 1,
10761 dev_driver_string(&pf
->pdev
->dev
), dev_name(&pdev
->dev
));
10763 err
= i40e_init_shared_code(hw
);
10765 dev_warn(&pdev
->dev
, "unidentified MAC or BLANK NVM: %d\n",
10770 /* set up a default setting for link flow control */
10771 pf
->hw
.fc
.requested_mode
= I40E_FC_NONE
;
10773 /* set up the locks for the AQ, do this only once in probe
10774 * and destroy them only once in remove
10776 mutex_init(&hw
->aq
.asq_mutex
);
10777 mutex_init(&hw
->aq
.arq_mutex
);
10779 err
= i40e_init_adminq(hw
);
10781 if (err
== I40E_ERR_FIRMWARE_API_VERSION
)
10782 dev_info(&pdev
->dev
,
10783 "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");
10785 dev_info(&pdev
->dev
,
10786 "The driver for the device stopped because the device firmware failed to init. Try updating your NVM image.\n");
10791 /* provide nvm, fw, api versions */
10792 dev_info(&pdev
->dev
, "fw %d.%d.%05d api %d.%d nvm %s\n",
10793 hw
->aq
.fw_maj_ver
, hw
->aq
.fw_min_ver
, hw
->aq
.fw_build
,
10794 hw
->aq
.api_maj_ver
, hw
->aq
.api_min_ver
,
10795 i40e_nvm_version_str(hw
));
10797 if (hw
->aq
.api_maj_ver
== I40E_FW_API_VERSION_MAJOR
&&
10798 hw
->aq
.api_min_ver
> I40E_FW_API_VERSION_MINOR
)
10799 dev_info(&pdev
->dev
,
10800 "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");
10801 else if (hw
->aq
.api_maj_ver
< I40E_FW_API_VERSION_MAJOR
||
10802 hw
->aq
.api_min_ver
< (I40E_FW_API_VERSION_MINOR
- 1))
10803 dev_info(&pdev
->dev
,
10804 "The driver for the device detected an older version of the NVM image than expected. Please update the NVM image.\n");
10806 i40e_verify_eeprom(pf
);
10808 /* Rev 0 hardware was never productized */
10809 if (hw
->revision_id
< 1)
10810 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");
10812 i40e_clear_pxe_mode(hw
);
10813 err
= i40e_get_capabilities(pf
);
10815 goto err_adminq_setup
;
10817 err
= i40e_sw_init(pf
);
10819 dev_info(&pdev
->dev
, "sw_init failed: %d\n", err
);
10823 err
= i40e_init_lan_hmc(hw
, hw
->func_caps
.num_tx_qp
,
10824 hw
->func_caps
.num_rx_qp
,
10825 pf
->fcoe_hmc_cntx_num
, pf
->fcoe_hmc_filt_num
);
10827 dev_info(&pdev
->dev
, "init_lan_hmc failed: %d\n", err
);
10828 goto err_init_lan_hmc
;
10831 err
= i40e_configure_lan_hmc(hw
, I40E_HMC_MODEL_DIRECT_ONLY
);
10833 dev_info(&pdev
->dev
, "configure_lan_hmc failed: %d\n", err
);
10835 goto err_configure_lan_hmc
;
10838 /* Disable LLDP for NICs that have firmware versions lower than v4.3.
10839 * Ignore error return codes because if it was already disabled via
10840 * hardware settings this will fail
10842 if (pf
->flags
& I40E_FLAG_STOP_FW_LLDP
) {
10843 dev_info(&pdev
->dev
, "Stopping firmware LLDP agent.\n");
10844 i40e_aq_stop_lldp(hw
, true, NULL
);
10847 i40e_get_mac_addr(hw
, hw
->mac
.addr
);
10848 /* allow a platform config to override the HW addr */
10849 i40e_get_platform_mac_addr(pdev
, pf
);
10850 if (!is_valid_ether_addr(hw
->mac
.addr
)) {
10851 dev_info(&pdev
->dev
, "invalid MAC address %pM\n", hw
->mac
.addr
);
10855 dev_info(&pdev
->dev
, "MAC address: %pM\n", hw
->mac
.addr
);
10856 ether_addr_copy(hw
->mac
.perm_addr
, hw
->mac
.addr
);
10857 i40e_get_port_mac_addr(hw
, hw
->mac
.port_addr
);
10858 if (is_valid_ether_addr(hw
->mac
.port_addr
))
10859 pf
->flags
|= I40E_FLAG_PORT_ID_VALID
;
10861 err
= i40e_get_san_mac_addr(hw
, hw
->mac
.san_addr
);
10863 dev_info(&pdev
->dev
,
10864 "(non-fatal) SAN MAC retrieval failed: %d\n", err
);
10865 if (!is_valid_ether_addr(hw
->mac
.san_addr
)) {
10866 dev_warn(&pdev
->dev
, "invalid SAN MAC address %pM, falling back to LAN MAC\n",
10868 ether_addr_copy(hw
->mac
.san_addr
, hw
->mac
.addr
);
10870 dev_info(&pf
->pdev
->dev
, "SAN MAC: %pM\n", hw
->mac
.san_addr
);
10871 #endif /* I40E_FCOE */
10873 pci_set_drvdata(pdev
, pf
);
10874 pci_save_state(pdev
);
10875 #ifdef CONFIG_I40E_DCB
10876 err
= i40e_init_pf_dcb(pf
);
10878 dev_info(&pdev
->dev
, "DCB init failed %d, disabled\n", err
);
10879 pf
->flags
&= ~I40E_FLAG_DCB_CAPABLE
;
10880 /* Continue without DCB enabled */
10882 #endif /* CONFIG_I40E_DCB */
10884 /* set up periodic task facility */
10885 setup_timer(&pf
->service_timer
, i40e_service_timer
, (unsigned long)pf
);
10886 pf
->service_timer_period
= HZ
;
10888 INIT_WORK(&pf
->service_task
, i40e_service_task
);
10889 clear_bit(__I40E_SERVICE_SCHED
, &pf
->state
);
10890 pf
->flags
|= I40E_FLAG_NEED_LINK_UPDATE
;
10892 /* NVM bit on means WoL disabled for the port */
10893 i40e_read_nvm_word(hw
, I40E_SR_NVM_WAKE_ON_LAN
, &wol_nvm_bits
);
10894 if (BIT (hw
->port
) & wol_nvm_bits
|| hw
->partition_id
!= 1)
10895 pf
->wol_en
= false;
10898 device_set_wakeup_enable(&pf
->pdev
->dev
, pf
->wol_en
);
10900 /* set up the main switch operations */
10901 i40e_determine_queue_usage(pf
);
10902 err
= i40e_init_interrupt_scheme(pf
);
10904 goto err_switch_setup
;
10906 /* The number of VSIs reported by the FW is the minimum guaranteed
10907 * to us; HW supports far more and we share the remaining pool with
10908 * the other PFs. We allocate space for more than the guarantee with
10909 * the understanding that we might not get them all later.
10911 if (pf
->hw
.func_caps
.num_vsis
< I40E_MIN_VSI_ALLOC
)
10912 pf
->num_alloc_vsi
= I40E_MIN_VSI_ALLOC
;
10914 pf
->num_alloc_vsi
= pf
->hw
.func_caps
.num_vsis
;
10916 /* Set up the *vsi struct and our local tracking of the MAIN PF vsi. */
10917 pf
->vsi
= kcalloc(pf
->num_alloc_vsi
, sizeof(struct i40e_vsi
*),
10921 goto err_switch_setup
;
10924 #ifdef CONFIG_PCI_IOV
10925 /* prep for VF support */
10926 if ((pf
->flags
& I40E_FLAG_SRIOV_ENABLED
) &&
10927 (pf
->flags
& I40E_FLAG_MSIX_ENABLED
) &&
10928 !test_bit(__I40E_BAD_EEPROM
, &pf
->state
)) {
10929 if (pci_num_vf(pdev
))
10930 pf
->flags
|= I40E_FLAG_VEB_MODE_ENABLED
;
10933 err
= i40e_setup_pf_switch(pf
, false);
10935 dev_info(&pdev
->dev
, "setup_pf_switch failed: %d\n", err
);
10939 /* Make sure flow control is set according to current settings */
10940 err
= i40e_set_fc(hw
, &set_fc_aq_fail
, true);
10941 if (set_fc_aq_fail
& I40E_SET_FC_AQ_FAIL_GET
)
10942 dev_dbg(&pf
->pdev
->dev
,
10943 "Set fc with err %s aq_err %s on get_phy_cap\n",
10944 i40e_stat_str(hw
, err
),
10945 i40e_aq_str(hw
, hw
->aq
.asq_last_status
));
10946 if (set_fc_aq_fail
& I40E_SET_FC_AQ_FAIL_SET
)
10947 dev_dbg(&pf
->pdev
->dev
,
10948 "Set fc with err %s aq_err %s on set_phy_config\n",
10949 i40e_stat_str(hw
, err
),
10950 i40e_aq_str(hw
, hw
->aq
.asq_last_status
));
10951 if (set_fc_aq_fail
& I40E_SET_FC_AQ_FAIL_UPDATE
)
10952 dev_dbg(&pf
->pdev
->dev
,
10953 "Set fc with err %s aq_err %s on get_link_info\n",
10954 i40e_stat_str(hw
, err
),
10955 i40e_aq_str(hw
, hw
->aq
.asq_last_status
));
10957 /* if FDIR VSI was set up, start it now */
10958 for (i
= 0; i
< pf
->num_alloc_vsi
; i
++) {
10959 if (pf
->vsi
[i
] && pf
->vsi
[i
]->type
== I40E_VSI_FDIR
) {
10960 i40e_vsi_open(pf
->vsi
[i
]);
10965 /* The driver only wants link up/down and module qualification
10966 * reports from firmware. Note the negative logic.
10968 err
= i40e_aq_set_phy_int_mask(&pf
->hw
,
10969 ~(I40E_AQ_EVENT_LINK_UPDOWN
|
10970 I40E_AQ_EVENT_MODULE_QUAL_FAIL
), NULL
);
10972 dev_info(&pf
->pdev
->dev
, "set phy mask fail, err %s aq_err %s\n",
10973 i40e_stat_str(&pf
->hw
, err
),
10974 i40e_aq_str(&pf
->hw
, pf
->hw
.aq
.asq_last_status
));
10976 /* Reconfigure hardware for allowing smaller MSS in the case
10977 * of TSO, so that we avoid the MDD being fired and causing
10978 * a reset in the case of small MSS+TSO.
10980 val
= rd32(hw
, I40E_REG_MSS
);
10981 if ((val
& I40E_REG_MSS_MIN_MASK
) > I40E_64BYTE_MSS
) {
10982 val
&= ~I40E_REG_MSS_MIN_MASK
;
10983 val
|= I40E_64BYTE_MSS
;
10984 wr32(hw
, I40E_REG_MSS
, val
);
10987 if (pf
->flags
& I40E_FLAG_RESTART_AUTONEG
) {
10989 err
= i40e_aq_set_link_restart_an(&pf
->hw
, true, NULL
);
10991 dev_info(&pf
->pdev
->dev
, "link restart failed, err %s aq_err %s\n",
10992 i40e_stat_str(&pf
->hw
, err
),
10993 i40e_aq_str(&pf
->hw
,
10994 pf
->hw
.aq
.asq_last_status
));
10996 /* The main driver is (mostly) up and happy. We need to set this state
10997 * before setting up the misc vector or we get a race and the vector
10998 * ends up disabled forever.
11000 clear_bit(__I40E_DOWN
, &pf
->state
);
11002 /* In case of MSIX we are going to setup the misc vector right here
11003 * to handle admin queue events etc. In case of legacy and MSI
11004 * the misc functionality and queue processing is combined in
11005 * the same vector and that gets setup at open.
11007 if (pf
->flags
& I40E_FLAG_MSIX_ENABLED
) {
11008 err
= i40e_setup_misc_vector(pf
);
11010 dev_info(&pdev
->dev
,
11011 "setup of misc vector failed: %d\n", err
);
11016 #ifdef CONFIG_PCI_IOV
11017 /* prep for VF support */
11018 if ((pf
->flags
& I40E_FLAG_SRIOV_ENABLED
) &&
11019 (pf
->flags
& I40E_FLAG_MSIX_ENABLED
) &&
11020 !test_bit(__I40E_BAD_EEPROM
, &pf
->state
)) {
11021 /* disable link interrupts for VFs */
11022 val
= rd32(hw
, I40E_PFGEN_PORTMDIO_NUM
);
11023 val
&= ~I40E_PFGEN_PORTMDIO_NUM_VFLINK_STAT_ENA_MASK
;
11024 wr32(hw
, I40E_PFGEN_PORTMDIO_NUM
, val
);
11027 if (pci_num_vf(pdev
)) {
11028 dev_info(&pdev
->dev
,
11029 "Active VFs found, allocating resources.\n");
11030 err
= i40e_alloc_vfs(pf
, pci_num_vf(pdev
));
11032 dev_info(&pdev
->dev
,
11033 "Error %d allocating resources for existing VFs\n",
11037 #endif /* CONFIG_PCI_IOV */
11041 i40e_dbg_pf_init(pf
);
11043 /* tell the firmware that we're starting */
11044 i40e_send_version(pf
);
11046 /* since everything's happy, start the service_task timer */
11047 mod_timer(&pf
->service_timer
,
11048 round_jiffies(jiffies
+ pf
->service_timer_period
));
11051 /* create FCoE interface */
11052 i40e_fcoe_vsi_setup(pf
);
11055 #define PCI_SPEED_SIZE 8
11056 #define PCI_WIDTH_SIZE 8
11057 /* Devices on the IOSF bus do not have this information
11058 * and will report PCI Gen 1 x 1 by default so don't bother
11061 if (!(pf
->flags
& I40E_FLAG_NO_PCI_LINK_CHECK
)) {
11062 char speed
[PCI_SPEED_SIZE
] = "Unknown";
11063 char width
[PCI_WIDTH_SIZE
] = "Unknown";
11065 /* Get the negotiated link width and speed from PCI config
11068 pcie_capability_read_word(pf
->pdev
, PCI_EXP_LNKSTA
,
11071 i40e_set_pci_config_data(hw
, link_status
);
11073 switch (hw
->bus
.speed
) {
11074 case i40e_bus_speed_8000
:
11075 strncpy(speed
, "8.0", PCI_SPEED_SIZE
); break;
11076 case i40e_bus_speed_5000
:
11077 strncpy(speed
, "5.0", PCI_SPEED_SIZE
); break;
11078 case i40e_bus_speed_2500
:
11079 strncpy(speed
, "2.5", PCI_SPEED_SIZE
); break;
11083 switch (hw
->bus
.width
) {
11084 case i40e_bus_width_pcie_x8
:
11085 strncpy(width
, "8", PCI_WIDTH_SIZE
); break;
11086 case i40e_bus_width_pcie_x4
:
11087 strncpy(width
, "4", PCI_WIDTH_SIZE
); break;
11088 case i40e_bus_width_pcie_x2
:
11089 strncpy(width
, "2", PCI_WIDTH_SIZE
); break;
11090 case i40e_bus_width_pcie_x1
:
11091 strncpy(width
, "1", PCI_WIDTH_SIZE
); break;
11096 dev_info(&pdev
->dev
, "PCI-Express: Speed %sGT/s Width x%s\n",
11099 if (hw
->bus
.width
< i40e_bus_width_pcie_x8
||
11100 hw
->bus
.speed
< i40e_bus_speed_8000
) {
11101 dev_warn(&pdev
->dev
, "PCI-Express bandwidth available for this device may be insufficient for optimal performance.\n");
11102 dev_warn(&pdev
->dev
, "Please move the device to a different PCI-e link with more lanes and/or higher transfer rate.\n");
11106 /* get the requested speeds from the fw */
11107 err
= i40e_aq_get_phy_capabilities(hw
, false, false, &abilities
, NULL
);
11109 dev_dbg(&pf
->pdev
->dev
, "get requested speeds ret = %s last_status = %s\n",
11110 i40e_stat_str(&pf
->hw
, err
),
11111 i40e_aq_str(&pf
->hw
, pf
->hw
.aq
.asq_last_status
));
11112 pf
->hw
.phy
.link_info
.requested_speeds
= abilities
.link_speed
;
11114 /* get the supported phy types from the fw */
11115 err
= i40e_aq_get_phy_capabilities(hw
, false, true, &abilities
, NULL
);
11117 dev_dbg(&pf
->pdev
->dev
, "get supported phy types ret = %s last_status = %s\n",
11118 i40e_stat_str(&pf
->hw
, err
),
11119 i40e_aq_str(&pf
->hw
, pf
->hw
.aq
.asq_last_status
));
11120 pf
->hw
.phy
.phy_types
= le32_to_cpu(abilities
.phy_type
);
11122 /* Add a filter to drop all Flow control frames from any VSI from being
11123 * transmitted. By doing so we stop a malicious VF from sending out
11124 * PAUSE or PFC frames and potentially controlling traffic for other
11126 * The FW can still send Flow control frames if enabled.
11128 i40e_add_filter_to_drop_tx_flow_control_frames(&pf
->hw
,
11129 pf
->main_vsi_seid
);
11131 /* print a string summarizing features */
11132 i40e_print_features(pf
);
11136 /* Unwind what we've done if something failed in the setup */
11138 set_bit(__I40E_DOWN
, &pf
->state
);
11139 i40e_clear_interrupt_scheme(pf
);
11142 i40e_reset_interrupt_capability(pf
);
11143 del_timer_sync(&pf
->service_timer
);
11145 err_configure_lan_hmc
:
11146 (void)i40e_shutdown_lan_hmc(hw
);
11148 kfree(pf
->qp_pile
);
11151 (void)i40e_shutdown_adminq(hw
);
11153 iounmap(hw
->hw_addr
);
11157 pci_disable_pcie_error_reporting(pdev
);
11158 pci_release_selected_regions(pdev
,
11159 pci_select_bars(pdev
, IORESOURCE_MEM
));
11162 pci_disable_device(pdev
);
11167 * i40e_remove - Device removal routine
11168 * @pdev: PCI device information struct
11170 * i40e_remove is called by the PCI subsystem to alert the driver
11171 * that is should release a PCI device. This could be caused by a
11172 * Hot-Plug event, or because the driver is going to be removed from
11175 static void i40e_remove(struct pci_dev
*pdev
)
11177 struct i40e_pf
*pf
= pci_get_drvdata(pdev
);
11178 struct i40e_hw
*hw
= &pf
->hw
;
11179 i40e_status ret_code
;
11182 i40e_dbg_pf_exit(pf
);
11186 /* Disable RSS in hw */
11187 wr32(hw
, I40E_PFQF_HENA(0), 0);
11188 wr32(hw
, I40E_PFQF_HENA(1), 0);
11190 /* no more scheduling of any task */
11191 set_bit(__I40E_DOWN
, &pf
->state
);
11192 del_timer_sync(&pf
->service_timer
);
11193 cancel_work_sync(&pf
->service_task
);
11195 if (pf
->flags
& I40E_FLAG_SRIOV_ENABLED
) {
11197 pf
->flags
&= ~I40E_FLAG_SRIOV_ENABLED
;
11200 i40e_fdir_teardown(pf
);
11202 /* If there is a switch structure or any orphans, remove them.
11203 * This will leave only the PF's VSI remaining.
11205 for (i
= 0; i
< I40E_MAX_VEB
; i
++) {
11209 if (pf
->veb
[i
]->uplink_seid
== pf
->mac_seid
||
11210 pf
->veb
[i
]->uplink_seid
== 0)
11211 i40e_switch_branch_release(pf
->veb
[i
]);
11214 /* Now we can shutdown the PF's VSI, just before we kill
11217 if (pf
->vsi
[pf
->lan_vsi
])
11218 i40e_vsi_release(pf
->vsi
[pf
->lan_vsi
]);
11220 /* shutdown and destroy the HMC */
11221 if (pf
->hw
.hmc
.hmc_obj
) {
11222 ret_code
= i40e_shutdown_lan_hmc(&pf
->hw
);
11224 dev_warn(&pdev
->dev
,
11225 "Failed to destroy the HMC resources: %d\n",
11229 /* shutdown the adminq */
11230 ret_code
= i40e_shutdown_adminq(&pf
->hw
);
11232 dev_warn(&pdev
->dev
,
11233 "Failed to destroy the Admin Queue resources: %d\n",
11236 /* destroy the locks only once, here */
11237 mutex_destroy(&hw
->aq
.arq_mutex
);
11238 mutex_destroy(&hw
->aq
.asq_mutex
);
11240 /* Clear all dynamic memory lists of rings, q_vectors, and VSIs */
11241 i40e_clear_interrupt_scheme(pf
);
11242 for (i
= 0; i
< pf
->num_alloc_vsi
; i
++) {
11244 i40e_vsi_clear_rings(pf
->vsi
[i
]);
11245 i40e_vsi_clear(pf
->vsi
[i
]);
11250 for (i
= 0; i
< I40E_MAX_VEB
; i
++) {
11255 kfree(pf
->qp_pile
);
11258 iounmap(pf
->hw
.hw_addr
);
11260 pci_release_selected_regions(pdev
,
11261 pci_select_bars(pdev
, IORESOURCE_MEM
));
11263 pci_disable_pcie_error_reporting(pdev
);
11264 pci_disable_device(pdev
);
11268 * i40e_pci_error_detected - warning that something funky happened in PCI land
11269 * @pdev: PCI device information struct
11271 * Called to warn that something happened and the error handling steps
11272 * are in progress. Allows the driver to quiesce things, be ready for
11275 static pci_ers_result_t
i40e_pci_error_detected(struct pci_dev
*pdev
,
11276 enum pci_channel_state error
)
11278 struct i40e_pf
*pf
= pci_get_drvdata(pdev
);
11280 dev_info(&pdev
->dev
, "%s: error %d\n", __func__
, error
);
11282 /* shutdown all operations */
11283 if (!test_bit(__I40E_SUSPENDED
, &pf
->state
)) {
11285 i40e_prep_for_reset(pf
);
11289 /* Request a slot reset */
11290 return PCI_ERS_RESULT_NEED_RESET
;
11294 * i40e_pci_error_slot_reset - a PCI slot reset just happened
11295 * @pdev: PCI device information struct
11297 * Called to find if the driver can work with the device now that
11298 * the pci slot has been reset. If a basic connection seems good
11299 * (registers are readable and have sane content) then return a
11300 * happy little PCI_ERS_RESULT_xxx.
11302 static pci_ers_result_t
i40e_pci_error_slot_reset(struct pci_dev
*pdev
)
11304 struct i40e_pf
*pf
= pci_get_drvdata(pdev
);
11305 pci_ers_result_t result
;
11309 dev_dbg(&pdev
->dev
, "%s\n", __func__
);
11310 if (pci_enable_device_mem(pdev
)) {
11311 dev_info(&pdev
->dev
,
11312 "Cannot re-enable PCI device after reset.\n");
11313 result
= PCI_ERS_RESULT_DISCONNECT
;
11315 pci_set_master(pdev
);
11316 pci_restore_state(pdev
);
11317 pci_save_state(pdev
);
11318 pci_wake_from_d3(pdev
, false);
11320 reg
= rd32(&pf
->hw
, I40E_GLGEN_RTRIG
);
11322 result
= PCI_ERS_RESULT_RECOVERED
;
11324 result
= PCI_ERS_RESULT_DISCONNECT
;
11327 err
= pci_cleanup_aer_uncorrect_error_status(pdev
);
11329 dev_info(&pdev
->dev
,
11330 "pci_cleanup_aer_uncorrect_error_status failed 0x%0x\n",
11332 /* non-fatal, continue */
11339 * i40e_pci_error_resume - restart operations after PCI error recovery
11340 * @pdev: PCI device information struct
11342 * Called to allow the driver to bring things back up after PCI error
11343 * and/or reset recovery has finished.
11345 static void i40e_pci_error_resume(struct pci_dev
*pdev
)
11347 struct i40e_pf
*pf
= pci_get_drvdata(pdev
);
11349 dev_dbg(&pdev
->dev
, "%s\n", __func__
);
11350 if (test_bit(__I40E_SUSPENDED
, &pf
->state
))
11354 i40e_handle_reset_warning(pf
);
11359 * i40e_shutdown - PCI callback for shutting down
11360 * @pdev: PCI device information struct
11362 static void i40e_shutdown(struct pci_dev
*pdev
)
11364 struct i40e_pf
*pf
= pci_get_drvdata(pdev
);
11365 struct i40e_hw
*hw
= &pf
->hw
;
11367 set_bit(__I40E_SUSPENDED
, &pf
->state
);
11368 set_bit(__I40E_DOWN
, &pf
->state
);
11370 i40e_prep_for_reset(pf
);
11373 wr32(hw
, I40E_PFPM_APM
, (pf
->wol_en
? I40E_PFPM_APM_APME_MASK
: 0));
11374 wr32(hw
, I40E_PFPM_WUFC
, (pf
->wol_en
? I40E_PFPM_WUFC_MAG_MASK
: 0));
11376 del_timer_sync(&pf
->service_timer
);
11377 cancel_work_sync(&pf
->service_task
);
11378 i40e_fdir_teardown(pf
);
11381 i40e_prep_for_reset(pf
);
11384 wr32(hw
, I40E_PFPM_APM
,
11385 (pf
->wol_en
? I40E_PFPM_APM_APME_MASK
: 0));
11386 wr32(hw
, I40E_PFPM_WUFC
,
11387 (pf
->wol_en
? I40E_PFPM_WUFC_MAG_MASK
: 0));
11389 i40e_clear_interrupt_scheme(pf
);
11391 if (system_state
== SYSTEM_POWER_OFF
) {
11392 pci_wake_from_d3(pdev
, pf
->wol_en
);
11393 pci_set_power_state(pdev
, PCI_D3hot
);
11399 * i40e_suspend - PCI callback for moving to D3
11400 * @pdev: PCI device information struct
11402 static int i40e_suspend(struct pci_dev
*pdev
, pm_message_t state
)
11404 struct i40e_pf
*pf
= pci_get_drvdata(pdev
);
11405 struct i40e_hw
*hw
= &pf
->hw
;
11407 set_bit(__I40E_SUSPENDED
, &pf
->state
);
11408 set_bit(__I40E_DOWN
, &pf
->state
);
11411 i40e_prep_for_reset(pf
);
11414 wr32(hw
, I40E_PFPM_APM
, (pf
->wol_en
? I40E_PFPM_APM_APME_MASK
: 0));
11415 wr32(hw
, I40E_PFPM_WUFC
, (pf
->wol_en
? I40E_PFPM_WUFC_MAG_MASK
: 0));
11417 pci_wake_from_d3(pdev
, pf
->wol_en
);
11418 pci_set_power_state(pdev
, PCI_D3hot
);
11424 * i40e_resume - PCI callback for waking up from D3
11425 * @pdev: PCI device information struct
11427 static int i40e_resume(struct pci_dev
*pdev
)
11429 struct i40e_pf
*pf
= pci_get_drvdata(pdev
);
11432 pci_set_power_state(pdev
, PCI_D0
);
11433 pci_restore_state(pdev
);
11434 /* pci_restore_state() clears dev->state_saves, so
11435 * call pci_save_state() again to restore it.
11437 pci_save_state(pdev
);
11439 err
= pci_enable_device_mem(pdev
);
11441 dev_err(&pdev
->dev
, "Cannot enable PCI device from suspend\n");
11444 pci_set_master(pdev
);
11446 /* no wakeup events while running */
11447 pci_wake_from_d3(pdev
, false);
11449 /* handling the reset will rebuild the device state */
11450 if (test_and_clear_bit(__I40E_SUSPENDED
, &pf
->state
)) {
11451 clear_bit(__I40E_DOWN
, &pf
->state
);
11453 i40e_reset_and_rebuild(pf
, false);
11461 static const struct pci_error_handlers i40e_err_handler
= {
11462 .error_detected
= i40e_pci_error_detected
,
11463 .slot_reset
= i40e_pci_error_slot_reset
,
11464 .resume
= i40e_pci_error_resume
,
11467 static struct pci_driver i40e_driver
= {
11468 .name
= i40e_driver_name
,
11469 .id_table
= i40e_pci_tbl
,
11470 .probe
= i40e_probe
,
11471 .remove
= i40e_remove
,
11473 .suspend
= i40e_suspend
,
11474 .resume
= i40e_resume
,
11476 .shutdown
= i40e_shutdown
,
11477 .err_handler
= &i40e_err_handler
,
11478 .sriov_configure
= i40e_pci_sriov_configure
,
11482 * i40e_init_module - Driver registration routine
11484 * i40e_init_module is the first routine called when the driver is
11485 * loaded. All it does is register with the PCI subsystem.
11487 static int __init
i40e_init_module(void)
11489 pr_info("%s: %s - version %s\n", i40e_driver_name
,
11490 i40e_driver_string
, i40e_driver_version_str
);
11491 pr_info("%s: %s\n", i40e_driver_name
, i40e_copyright
);
11493 /* we will see if single thread per module is enough for now,
11494 * it can't be any worse than using the system workqueue which
11495 * was already single threaded
11497 i40e_wq
= create_singlethread_workqueue(i40e_driver_name
);
11499 pr_err("%s: Failed to create workqueue\n", i40e_driver_name
);
11504 return pci_register_driver(&i40e_driver
);
11506 module_init(i40e_init_module
);
11509 * i40e_exit_module - Driver exit cleanup routine
11511 * i40e_exit_module is called just before the driver is removed
11514 static void __exit
i40e_exit_module(void)
11516 pci_unregister_driver(&i40e_driver
);
11517 destroy_workqueue(i40e_wq
);
11520 module_exit(i40e_exit_module
);