1 /*******************************************************************************
3 * Intel Ethernet Controller XL710 Family Linux Driver
4 * Copyright(c) 2013 - 2017 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>
30 #include <linux/bpf.h>
34 #include "i40e_diag.h"
35 #include <net/udp_tunnel.h>
36 /* All i40e tracepoints are defined by the include below, which
37 * must be included exactly once across the whole kernel with
38 * CREATE_TRACE_POINTS defined
40 #define CREATE_TRACE_POINTS
41 #include "i40e_trace.h"
43 const char i40e_driver_name
[] = "i40e";
44 static const char i40e_driver_string
[] =
45 "Intel(R) Ethernet Connection XL710 Network Driver";
49 #define DRV_VERSION_MAJOR 2
50 #define DRV_VERSION_MINOR 1
51 #define DRV_VERSION_BUILD 14
52 #define DRV_VERSION __stringify(DRV_VERSION_MAJOR) "." \
53 __stringify(DRV_VERSION_MINOR) "." \
54 __stringify(DRV_VERSION_BUILD) DRV_KERN
55 const char i40e_driver_version_str
[] = DRV_VERSION
;
56 static const char i40e_copyright
[] = "Copyright (c) 2013 - 2014 Intel Corporation.";
58 /* a bit of forward declarations */
59 static void i40e_vsi_reinit_locked(struct i40e_vsi
*vsi
);
60 static void i40e_handle_reset_warning(struct i40e_pf
*pf
, bool lock_acquired
);
61 static int i40e_add_vsi(struct i40e_vsi
*vsi
);
62 static int i40e_add_veb(struct i40e_veb
*veb
, struct i40e_vsi
*vsi
);
63 static int i40e_setup_pf_switch(struct i40e_pf
*pf
, bool reinit
);
64 static int i40e_setup_misc_vector(struct i40e_pf
*pf
);
65 static void i40e_determine_queue_usage(struct i40e_pf
*pf
);
66 static int i40e_setup_pf_filter_control(struct i40e_pf
*pf
);
67 static void i40e_prep_for_reset(struct i40e_pf
*pf
, bool lock_acquired
);
68 static int i40e_reset(struct i40e_pf
*pf
);
69 static void i40e_rebuild(struct i40e_pf
*pf
, bool reinit
, bool lock_acquired
);
70 static void i40e_fdir_sb_setup(struct i40e_pf
*pf
);
71 static int i40e_veb_get_bw_info(struct i40e_veb
*veb
);
72 static int i40e_add_del_cloud_filter(struct i40e_vsi
*vsi
,
73 struct i40e_cloud_filter
*filter
,
75 static int i40e_add_del_cloud_filter_big_buf(struct i40e_vsi
*vsi
,
76 struct i40e_cloud_filter
*filter
,
78 static int i40e_get_capabilities(struct i40e_pf
*pf
,
79 enum i40e_admin_queue_opc list_type
);
82 /* i40e_pci_tbl - PCI Device ID Table
84 * Last entry must be all 0s
86 * { Vendor ID, Device ID, SubVendor ID, SubDevice ID,
87 * Class, Class Mask, private data (not used) }
89 static const struct pci_device_id i40e_pci_tbl
[] = {
90 {PCI_VDEVICE(INTEL
, I40E_DEV_ID_SFP_XL710
), 0},
91 {PCI_VDEVICE(INTEL
, I40E_DEV_ID_QEMU
), 0},
92 {PCI_VDEVICE(INTEL
, I40E_DEV_ID_KX_B
), 0},
93 {PCI_VDEVICE(INTEL
, I40E_DEV_ID_KX_C
), 0},
94 {PCI_VDEVICE(INTEL
, I40E_DEV_ID_QSFP_A
), 0},
95 {PCI_VDEVICE(INTEL
, I40E_DEV_ID_QSFP_B
), 0},
96 {PCI_VDEVICE(INTEL
, I40E_DEV_ID_QSFP_C
), 0},
97 {PCI_VDEVICE(INTEL
, I40E_DEV_ID_10G_BASE_T
), 0},
98 {PCI_VDEVICE(INTEL
, I40E_DEV_ID_10G_BASE_T4
), 0},
99 {PCI_VDEVICE(INTEL
, I40E_DEV_ID_KX_X722
), 0},
100 {PCI_VDEVICE(INTEL
, I40E_DEV_ID_QSFP_X722
), 0},
101 {PCI_VDEVICE(INTEL
, I40E_DEV_ID_SFP_X722
), 0},
102 {PCI_VDEVICE(INTEL
, I40E_DEV_ID_1G_BASE_T_X722
), 0},
103 {PCI_VDEVICE(INTEL
, I40E_DEV_ID_10G_BASE_T_X722
), 0},
104 {PCI_VDEVICE(INTEL
, I40E_DEV_ID_SFP_I_X722
), 0},
105 {PCI_VDEVICE(INTEL
, I40E_DEV_ID_20G_KR2
), 0},
106 {PCI_VDEVICE(INTEL
, I40E_DEV_ID_20G_KR2_A
), 0},
107 {PCI_VDEVICE(INTEL
, I40E_DEV_ID_25G_B
), 0},
108 {PCI_VDEVICE(INTEL
, I40E_DEV_ID_25G_SFP28
), 0},
109 /* required last entry */
112 MODULE_DEVICE_TABLE(pci
, i40e_pci_tbl
);
114 #define I40E_MAX_VF_COUNT 128
115 static int debug
= -1;
116 module_param(debug
, uint
, 0);
117 MODULE_PARM_DESC(debug
, "Debug level (0=none,...,16=all), Debug mask (0x8XXXXXXX)");
119 MODULE_AUTHOR("Intel Corporation, <e1000-devel@lists.sourceforge.net>");
120 MODULE_DESCRIPTION("Intel(R) Ethernet Connection XL710 Network Driver");
121 MODULE_LICENSE("GPL");
122 MODULE_VERSION(DRV_VERSION
);
124 static struct workqueue_struct
*i40e_wq
;
127 * i40e_allocate_dma_mem_d - OS specific memory alloc for shared code
128 * @hw: pointer to the HW structure
129 * @mem: ptr to mem struct to fill out
130 * @size: size of memory requested
131 * @alignment: what to align the allocation to
133 int i40e_allocate_dma_mem_d(struct i40e_hw
*hw
, struct i40e_dma_mem
*mem
,
134 u64 size
, u32 alignment
)
136 struct i40e_pf
*pf
= (struct i40e_pf
*)hw
->back
;
138 mem
->size
= ALIGN(size
, alignment
);
139 mem
->va
= dma_zalloc_coherent(&pf
->pdev
->dev
, mem
->size
,
140 &mem
->pa
, GFP_KERNEL
);
148 * i40e_free_dma_mem_d - OS specific memory free for shared code
149 * @hw: pointer to the HW structure
150 * @mem: ptr to mem struct to free
152 int i40e_free_dma_mem_d(struct i40e_hw
*hw
, struct i40e_dma_mem
*mem
)
154 struct i40e_pf
*pf
= (struct i40e_pf
*)hw
->back
;
156 dma_free_coherent(&pf
->pdev
->dev
, mem
->size
, mem
->va
, mem
->pa
);
165 * i40e_allocate_virt_mem_d - OS specific memory alloc for shared code
166 * @hw: pointer to the HW structure
167 * @mem: ptr to mem struct to fill out
168 * @size: size of memory requested
170 int i40e_allocate_virt_mem_d(struct i40e_hw
*hw
, struct i40e_virt_mem
*mem
,
174 mem
->va
= kzalloc(size
, GFP_KERNEL
);
183 * i40e_free_virt_mem_d - OS specific memory free for shared code
184 * @hw: pointer to the HW structure
185 * @mem: ptr to mem struct to free
187 int i40e_free_virt_mem_d(struct i40e_hw
*hw
, struct i40e_virt_mem
*mem
)
189 /* it's ok to kfree a NULL pointer */
198 * i40e_get_lump - find a lump of free generic resource
199 * @pf: board private structure
200 * @pile: the pile of resource to search
201 * @needed: the number of items needed
202 * @id: an owner id to stick on the items assigned
204 * Returns the base item index of the lump, or negative for error
206 * The search_hint trick and lack of advanced fit-finding only work
207 * because we're highly likely to have all the same size lump requests.
208 * Linear search time and any fragmentation should be minimal.
210 static int i40e_get_lump(struct i40e_pf
*pf
, struct i40e_lump_tracking
*pile
,
216 if (!pile
|| needed
== 0 || id
>= I40E_PILE_VALID_BIT
) {
217 dev_info(&pf
->pdev
->dev
,
218 "param err: pile=%p needed=%d id=0x%04x\n",
223 /* start the linear search with an imperfect hint */
224 i
= pile
->search_hint
;
225 while (i
< pile
->num_entries
) {
226 /* skip already allocated entries */
227 if (pile
->list
[i
] & I40E_PILE_VALID_BIT
) {
232 /* do we have enough in this lump? */
233 for (j
= 0; (j
< needed
) && ((i
+j
) < pile
->num_entries
); j
++) {
234 if (pile
->list
[i
+j
] & I40E_PILE_VALID_BIT
)
239 /* there was enough, so assign it to the requestor */
240 for (j
= 0; j
< needed
; j
++)
241 pile
->list
[i
+j
] = id
| I40E_PILE_VALID_BIT
;
243 pile
->search_hint
= i
+ j
;
247 /* not enough, so skip over it and continue looking */
255 * i40e_put_lump - return a lump of generic resource
256 * @pile: the pile of resource to search
257 * @index: the base item index
258 * @id: the owner id of the items assigned
260 * Returns the count of items in the lump
262 static int i40e_put_lump(struct i40e_lump_tracking
*pile
, u16 index
, u16 id
)
264 int valid_id
= (id
| I40E_PILE_VALID_BIT
);
268 if (!pile
|| index
>= pile
->num_entries
)
272 i
< pile
->num_entries
&& pile
->list
[i
] == valid_id
;
278 if (count
&& index
< pile
->search_hint
)
279 pile
->search_hint
= index
;
285 * i40e_find_vsi_from_id - searches for the vsi with the given id
286 * @pf - the pf structure to search for the vsi
287 * @id - id of the vsi it is searching for
289 struct i40e_vsi
*i40e_find_vsi_from_id(struct i40e_pf
*pf
, u16 id
)
293 for (i
= 0; i
< pf
->num_alloc_vsi
; i
++)
294 if (pf
->vsi
[i
] && (pf
->vsi
[i
]->id
== id
))
301 * i40e_service_event_schedule - Schedule the service task to wake up
302 * @pf: board private structure
304 * If not already scheduled, this puts the task into the work queue
306 void i40e_service_event_schedule(struct i40e_pf
*pf
)
308 if (!test_bit(__I40E_DOWN
, pf
->state
) &&
309 !test_bit(__I40E_RESET_RECOVERY_PENDING
, pf
->state
))
310 queue_work(i40e_wq
, &pf
->service_task
);
314 * i40e_tx_timeout - Respond to a Tx Hang
315 * @netdev: network interface device structure
317 * If any port has noticed a Tx timeout, it is likely that the whole
318 * device is munged, not just the one netdev port, so go for the full
321 static void i40e_tx_timeout(struct net_device
*netdev
)
323 struct i40e_netdev_priv
*np
= netdev_priv(netdev
);
324 struct i40e_vsi
*vsi
= np
->vsi
;
325 struct i40e_pf
*pf
= vsi
->back
;
326 struct i40e_ring
*tx_ring
= NULL
;
327 unsigned int i
, hung_queue
= 0;
330 pf
->tx_timeout_count
++;
332 /* find the stopped queue the same way the stack does */
333 for (i
= 0; i
< netdev
->num_tx_queues
; i
++) {
334 struct netdev_queue
*q
;
335 unsigned long trans_start
;
337 q
= netdev_get_tx_queue(netdev
, i
);
338 trans_start
= q
->trans_start
;
339 if (netif_xmit_stopped(q
) &&
341 (trans_start
+ netdev
->watchdog_timeo
))) {
347 if (i
== netdev
->num_tx_queues
) {
348 netdev_info(netdev
, "tx_timeout: no netdev hung queue found\n");
350 /* now that we have an index, find the tx_ring struct */
351 for (i
= 0; i
< vsi
->num_queue_pairs
; i
++) {
352 if (vsi
->tx_rings
[i
] && vsi
->tx_rings
[i
]->desc
) {
354 vsi
->tx_rings
[i
]->queue_index
) {
355 tx_ring
= vsi
->tx_rings
[i
];
362 if (time_after(jiffies
, (pf
->tx_timeout_last_recovery
+ HZ
*20)))
363 pf
->tx_timeout_recovery_level
= 1; /* reset after some time */
364 else if (time_before(jiffies
,
365 (pf
->tx_timeout_last_recovery
+ netdev
->watchdog_timeo
)))
366 return; /* don't do any new action before the next timeout */
369 head
= i40e_get_head(tx_ring
);
370 /* Read interrupt register */
371 if (pf
->flags
& I40E_FLAG_MSIX_ENABLED
)
373 I40E_PFINT_DYN_CTLN(tx_ring
->q_vector
->v_idx
+
374 tx_ring
->vsi
->base_vector
- 1));
376 val
= rd32(&pf
->hw
, I40E_PFINT_DYN_CTL0
);
378 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",
379 vsi
->seid
, hung_queue
, tx_ring
->next_to_clean
,
380 head
, tx_ring
->next_to_use
,
381 readl(tx_ring
->tail
), val
);
384 pf
->tx_timeout_last_recovery
= jiffies
;
385 netdev_info(netdev
, "tx_timeout recovery level %d, hung_queue %d\n",
386 pf
->tx_timeout_recovery_level
, hung_queue
);
388 switch (pf
->tx_timeout_recovery_level
) {
390 set_bit(__I40E_PF_RESET_REQUESTED
, pf
->state
);
393 set_bit(__I40E_CORE_RESET_REQUESTED
, pf
->state
);
396 set_bit(__I40E_GLOBAL_RESET_REQUESTED
, pf
->state
);
399 netdev_err(netdev
, "tx_timeout recovery unsuccessful\n");
403 i40e_service_event_schedule(pf
);
404 pf
->tx_timeout_recovery_level
++;
408 * i40e_get_vsi_stats_struct - Get System Network Statistics
409 * @vsi: the VSI we care about
411 * Returns the address of the device statistics structure.
412 * The statistics are actually updated from the service task.
414 struct rtnl_link_stats64
*i40e_get_vsi_stats_struct(struct i40e_vsi
*vsi
)
416 return &vsi
->net_stats
;
420 * i40e_get_netdev_stats_struct_tx - populate stats from a Tx ring
421 * @ring: Tx ring to get statistics from
422 * @stats: statistics entry to be updated
424 static void i40e_get_netdev_stats_struct_tx(struct i40e_ring
*ring
,
425 struct rtnl_link_stats64
*stats
)
431 start
= u64_stats_fetch_begin_irq(&ring
->syncp
);
432 packets
= ring
->stats
.packets
;
433 bytes
= ring
->stats
.bytes
;
434 } while (u64_stats_fetch_retry_irq(&ring
->syncp
, start
));
436 stats
->tx_packets
+= packets
;
437 stats
->tx_bytes
+= bytes
;
441 * i40e_get_netdev_stats_struct - Get statistics for netdev interface
442 * @netdev: network interface device structure
444 * Returns the address of the device statistics structure.
445 * The statistics are actually updated from the service task.
447 static void i40e_get_netdev_stats_struct(struct net_device
*netdev
,
448 struct rtnl_link_stats64
*stats
)
450 struct i40e_netdev_priv
*np
= netdev_priv(netdev
);
451 struct i40e_ring
*tx_ring
, *rx_ring
;
452 struct i40e_vsi
*vsi
= np
->vsi
;
453 struct rtnl_link_stats64
*vsi_stats
= i40e_get_vsi_stats_struct(vsi
);
456 if (test_bit(__I40E_VSI_DOWN
, vsi
->state
))
463 for (i
= 0; i
< vsi
->num_queue_pairs
; i
++) {
467 tx_ring
= READ_ONCE(vsi
->tx_rings
[i
]);
470 i40e_get_netdev_stats_struct_tx(tx_ring
, stats
);
472 rx_ring
= &tx_ring
[1];
475 start
= u64_stats_fetch_begin_irq(&rx_ring
->syncp
);
476 packets
= rx_ring
->stats
.packets
;
477 bytes
= rx_ring
->stats
.bytes
;
478 } while (u64_stats_fetch_retry_irq(&rx_ring
->syncp
, start
));
480 stats
->rx_packets
+= packets
;
481 stats
->rx_bytes
+= bytes
;
483 if (i40e_enabled_xdp_vsi(vsi
))
484 i40e_get_netdev_stats_struct_tx(&rx_ring
[1], stats
);
488 /* following stats updated by i40e_watchdog_subtask() */
489 stats
->multicast
= vsi_stats
->multicast
;
490 stats
->tx_errors
= vsi_stats
->tx_errors
;
491 stats
->tx_dropped
= vsi_stats
->tx_dropped
;
492 stats
->rx_errors
= vsi_stats
->rx_errors
;
493 stats
->rx_dropped
= vsi_stats
->rx_dropped
;
494 stats
->rx_crc_errors
= vsi_stats
->rx_crc_errors
;
495 stats
->rx_length_errors
= vsi_stats
->rx_length_errors
;
499 * i40e_vsi_reset_stats - Resets all stats of the given vsi
500 * @vsi: the VSI to have its stats reset
502 void i40e_vsi_reset_stats(struct i40e_vsi
*vsi
)
504 struct rtnl_link_stats64
*ns
;
510 ns
= i40e_get_vsi_stats_struct(vsi
);
511 memset(ns
, 0, sizeof(*ns
));
512 memset(&vsi
->net_stats_offsets
, 0, sizeof(vsi
->net_stats_offsets
));
513 memset(&vsi
->eth_stats
, 0, sizeof(vsi
->eth_stats
));
514 memset(&vsi
->eth_stats_offsets
, 0, sizeof(vsi
->eth_stats_offsets
));
515 if (vsi
->rx_rings
&& vsi
->rx_rings
[0]) {
516 for (i
= 0; i
< vsi
->num_queue_pairs
; i
++) {
517 memset(&vsi
->rx_rings
[i
]->stats
, 0,
518 sizeof(vsi
->rx_rings
[i
]->stats
));
519 memset(&vsi
->rx_rings
[i
]->rx_stats
, 0,
520 sizeof(vsi
->rx_rings
[i
]->rx_stats
));
521 memset(&vsi
->tx_rings
[i
]->stats
, 0,
522 sizeof(vsi
->tx_rings
[i
]->stats
));
523 memset(&vsi
->tx_rings
[i
]->tx_stats
, 0,
524 sizeof(vsi
->tx_rings
[i
]->tx_stats
));
527 vsi
->stat_offsets_loaded
= false;
531 * i40e_pf_reset_stats - Reset all of the stats for the given PF
532 * @pf: the PF to be reset
534 void i40e_pf_reset_stats(struct i40e_pf
*pf
)
538 memset(&pf
->stats
, 0, sizeof(pf
->stats
));
539 memset(&pf
->stats_offsets
, 0, sizeof(pf
->stats_offsets
));
540 pf
->stat_offsets_loaded
= false;
542 for (i
= 0; i
< I40E_MAX_VEB
; i
++) {
544 memset(&pf
->veb
[i
]->stats
, 0,
545 sizeof(pf
->veb
[i
]->stats
));
546 memset(&pf
->veb
[i
]->stats_offsets
, 0,
547 sizeof(pf
->veb
[i
]->stats_offsets
));
548 pf
->veb
[i
]->stat_offsets_loaded
= false;
551 pf
->hw_csum_rx_error
= 0;
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_stat_update_and_clear32 - read and clear hw reg, update a 32 bit stat
613 * @hw: ptr to the hardware info
614 * @reg: the hw reg to read and clear
615 * @stat: ptr to the stat
617 static void i40e_stat_update_and_clear32(struct i40e_hw
*hw
, u32 reg
, u64
*stat
)
619 u32 new_data
= rd32(hw
, reg
);
621 wr32(hw
, reg
, 1); /* must write a nonzero value to clear register */
626 * i40e_update_eth_stats - Update VSI-specific ethernet statistics counters.
627 * @vsi: the VSI to be updated
629 void i40e_update_eth_stats(struct i40e_vsi
*vsi
)
631 int stat_idx
= le16_to_cpu(vsi
->info
.stat_counter_idx
);
632 struct i40e_pf
*pf
= vsi
->back
;
633 struct i40e_hw
*hw
= &pf
->hw
;
634 struct i40e_eth_stats
*oes
;
635 struct i40e_eth_stats
*es
; /* device's eth stats */
637 es
= &vsi
->eth_stats
;
638 oes
= &vsi
->eth_stats_offsets
;
640 /* Gather up the stats that the hw collects */
641 i40e_stat_update32(hw
, I40E_GLV_TEPC(stat_idx
),
642 vsi
->stat_offsets_loaded
,
643 &oes
->tx_errors
, &es
->tx_errors
);
644 i40e_stat_update32(hw
, I40E_GLV_RDPC(stat_idx
),
645 vsi
->stat_offsets_loaded
,
646 &oes
->rx_discards
, &es
->rx_discards
);
647 i40e_stat_update32(hw
, I40E_GLV_RUPP(stat_idx
),
648 vsi
->stat_offsets_loaded
,
649 &oes
->rx_unknown_protocol
, &es
->rx_unknown_protocol
);
650 i40e_stat_update32(hw
, I40E_GLV_TEPC(stat_idx
),
651 vsi
->stat_offsets_loaded
,
652 &oes
->tx_errors
, &es
->tx_errors
);
654 i40e_stat_update48(hw
, I40E_GLV_GORCH(stat_idx
),
655 I40E_GLV_GORCL(stat_idx
),
656 vsi
->stat_offsets_loaded
,
657 &oes
->rx_bytes
, &es
->rx_bytes
);
658 i40e_stat_update48(hw
, I40E_GLV_UPRCH(stat_idx
),
659 I40E_GLV_UPRCL(stat_idx
),
660 vsi
->stat_offsets_loaded
,
661 &oes
->rx_unicast
, &es
->rx_unicast
);
662 i40e_stat_update48(hw
, I40E_GLV_MPRCH(stat_idx
),
663 I40E_GLV_MPRCL(stat_idx
),
664 vsi
->stat_offsets_loaded
,
665 &oes
->rx_multicast
, &es
->rx_multicast
);
666 i40e_stat_update48(hw
, I40E_GLV_BPRCH(stat_idx
),
667 I40E_GLV_BPRCL(stat_idx
),
668 vsi
->stat_offsets_loaded
,
669 &oes
->rx_broadcast
, &es
->rx_broadcast
);
671 i40e_stat_update48(hw
, I40E_GLV_GOTCH(stat_idx
),
672 I40E_GLV_GOTCL(stat_idx
),
673 vsi
->stat_offsets_loaded
,
674 &oes
->tx_bytes
, &es
->tx_bytes
);
675 i40e_stat_update48(hw
, I40E_GLV_UPTCH(stat_idx
),
676 I40E_GLV_UPTCL(stat_idx
),
677 vsi
->stat_offsets_loaded
,
678 &oes
->tx_unicast
, &es
->tx_unicast
);
679 i40e_stat_update48(hw
, I40E_GLV_MPTCH(stat_idx
),
680 I40E_GLV_MPTCL(stat_idx
),
681 vsi
->stat_offsets_loaded
,
682 &oes
->tx_multicast
, &es
->tx_multicast
);
683 i40e_stat_update48(hw
, I40E_GLV_BPTCH(stat_idx
),
684 I40E_GLV_BPTCL(stat_idx
),
685 vsi
->stat_offsets_loaded
,
686 &oes
->tx_broadcast
, &es
->tx_broadcast
);
687 vsi
->stat_offsets_loaded
= true;
691 * i40e_update_veb_stats - Update Switch component statistics
692 * @veb: the VEB being updated
694 static void i40e_update_veb_stats(struct i40e_veb
*veb
)
696 struct i40e_pf
*pf
= veb
->pf
;
697 struct i40e_hw
*hw
= &pf
->hw
;
698 struct i40e_eth_stats
*oes
;
699 struct i40e_eth_stats
*es
; /* device's eth stats */
700 struct i40e_veb_tc_stats
*veb_oes
;
701 struct i40e_veb_tc_stats
*veb_es
;
704 idx
= veb
->stats_idx
;
706 oes
= &veb
->stats_offsets
;
707 veb_es
= &veb
->tc_stats
;
708 veb_oes
= &veb
->tc_stats_offsets
;
710 /* Gather up the stats that the hw collects */
711 i40e_stat_update32(hw
, I40E_GLSW_TDPC(idx
),
712 veb
->stat_offsets_loaded
,
713 &oes
->tx_discards
, &es
->tx_discards
);
714 if (hw
->revision_id
> 0)
715 i40e_stat_update32(hw
, I40E_GLSW_RUPP(idx
),
716 veb
->stat_offsets_loaded
,
717 &oes
->rx_unknown_protocol
,
718 &es
->rx_unknown_protocol
);
719 i40e_stat_update48(hw
, I40E_GLSW_GORCH(idx
), I40E_GLSW_GORCL(idx
),
720 veb
->stat_offsets_loaded
,
721 &oes
->rx_bytes
, &es
->rx_bytes
);
722 i40e_stat_update48(hw
, I40E_GLSW_UPRCH(idx
), I40E_GLSW_UPRCL(idx
),
723 veb
->stat_offsets_loaded
,
724 &oes
->rx_unicast
, &es
->rx_unicast
);
725 i40e_stat_update48(hw
, I40E_GLSW_MPRCH(idx
), I40E_GLSW_MPRCL(idx
),
726 veb
->stat_offsets_loaded
,
727 &oes
->rx_multicast
, &es
->rx_multicast
);
728 i40e_stat_update48(hw
, I40E_GLSW_BPRCH(idx
), I40E_GLSW_BPRCL(idx
),
729 veb
->stat_offsets_loaded
,
730 &oes
->rx_broadcast
, &es
->rx_broadcast
);
732 i40e_stat_update48(hw
, I40E_GLSW_GOTCH(idx
), I40E_GLSW_GOTCL(idx
),
733 veb
->stat_offsets_loaded
,
734 &oes
->tx_bytes
, &es
->tx_bytes
);
735 i40e_stat_update48(hw
, I40E_GLSW_UPTCH(idx
), I40E_GLSW_UPTCL(idx
),
736 veb
->stat_offsets_loaded
,
737 &oes
->tx_unicast
, &es
->tx_unicast
);
738 i40e_stat_update48(hw
, I40E_GLSW_MPTCH(idx
), I40E_GLSW_MPTCL(idx
),
739 veb
->stat_offsets_loaded
,
740 &oes
->tx_multicast
, &es
->tx_multicast
);
741 i40e_stat_update48(hw
, I40E_GLSW_BPTCH(idx
), I40E_GLSW_BPTCL(idx
),
742 veb
->stat_offsets_loaded
,
743 &oes
->tx_broadcast
, &es
->tx_broadcast
);
744 for (i
= 0; i
< I40E_MAX_TRAFFIC_CLASS
; i
++) {
745 i40e_stat_update48(hw
, I40E_GLVEBTC_RPCH(i
, idx
),
746 I40E_GLVEBTC_RPCL(i
, idx
),
747 veb
->stat_offsets_loaded
,
748 &veb_oes
->tc_rx_packets
[i
],
749 &veb_es
->tc_rx_packets
[i
]);
750 i40e_stat_update48(hw
, I40E_GLVEBTC_RBCH(i
, idx
),
751 I40E_GLVEBTC_RBCL(i
, idx
),
752 veb
->stat_offsets_loaded
,
753 &veb_oes
->tc_rx_bytes
[i
],
754 &veb_es
->tc_rx_bytes
[i
]);
755 i40e_stat_update48(hw
, I40E_GLVEBTC_TPCH(i
, idx
),
756 I40E_GLVEBTC_TPCL(i
, idx
),
757 veb
->stat_offsets_loaded
,
758 &veb_oes
->tc_tx_packets
[i
],
759 &veb_es
->tc_tx_packets
[i
]);
760 i40e_stat_update48(hw
, I40E_GLVEBTC_TBCH(i
, idx
),
761 I40E_GLVEBTC_TBCL(i
, idx
),
762 veb
->stat_offsets_loaded
,
763 &veb_oes
->tc_tx_bytes
[i
],
764 &veb_es
->tc_tx_bytes
[i
]);
766 veb
->stat_offsets_loaded
= true;
770 * i40e_update_vsi_stats - Update the vsi statistics counters.
771 * @vsi: the VSI to be updated
773 * There are a few instances where we store the same stat in a
774 * couple of different structs. This is partly because we have
775 * the netdev stats that need to be filled out, which is slightly
776 * different from the "eth_stats" defined by the chip and used in
777 * VF communications. We sort it out here.
779 static void i40e_update_vsi_stats(struct i40e_vsi
*vsi
)
781 struct i40e_pf
*pf
= vsi
->back
;
782 struct rtnl_link_stats64
*ons
;
783 struct rtnl_link_stats64
*ns
; /* netdev stats */
784 struct i40e_eth_stats
*oes
;
785 struct i40e_eth_stats
*es
; /* device's eth stats */
786 u32 tx_restart
, tx_busy
;
797 if (test_bit(__I40E_VSI_DOWN
, vsi
->state
) ||
798 test_bit(__I40E_CONFIG_BUSY
, pf
->state
))
801 ns
= i40e_get_vsi_stats_struct(vsi
);
802 ons
= &vsi
->net_stats_offsets
;
803 es
= &vsi
->eth_stats
;
804 oes
= &vsi
->eth_stats_offsets
;
806 /* Gather up the netdev and vsi stats that the driver collects
807 * on the fly during packet processing
811 tx_restart
= tx_busy
= tx_linearize
= tx_force_wb
= 0;
815 for (q
= 0; q
< vsi
->num_queue_pairs
; q
++) {
817 p
= READ_ONCE(vsi
->tx_rings
[q
]);
820 start
= u64_stats_fetch_begin_irq(&p
->syncp
);
821 packets
= p
->stats
.packets
;
822 bytes
= p
->stats
.bytes
;
823 } while (u64_stats_fetch_retry_irq(&p
->syncp
, start
));
826 tx_restart
+= p
->tx_stats
.restart_queue
;
827 tx_busy
+= p
->tx_stats
.tx_busy
;
828 tx_linearize
+= p
->tx_stats
.tx_linearize
;
829 tx_force_wb
+= p
->tx_stats
.tx_force_wb
;
831 /* Rx queue is part of the same block as Tx queue */
834 start
= u64_stats_fetch_begin_irq(&p
->syncp
);
835 packets
= p
->stats
.packets
;
836 bytes
= p
->stats
.bytes
;
837 } while (u64_stats_fetch_retry_irq(&p
->syncp
, start
));
840 rx_buf
+= p
->rx_stats
.alloc_buff_failed
;
841 rx_page
+= p
->rx_stats
.alloc_page_failed
;
844 vsi
->tx_restart
= tx_restart
;
845 vsi
->tx_busy
= tx_busy
;
846 vsi
->tx_linearize
= tx_linearize
;
847 vsi
->tx_force_wb
= tx_force_wb
;
848 vsi
->rx_page_failed
= rx_page
;
849 vsi
->rx_buf_failed
= rx_buf
;
851 ns
->rx_packets
= rx_p
;
853 ns
->tx_packets
= tx_p
;
856 /* update netdev stats from eth stats */
857 i40e_update_eth_stats(vsi
);
858 ons
->tx_errors
= oes
->tx_errors
;
859 ns
->tx_errors
= es
->tx_errors
;
860 ons
->multicast
= oes
->rx_multicast
;
861 ns
->multicast
= es
->rx_multicast
;
862 ons
->rx_dropped
= oes
->rx_discards
;
863 ns
->rx_dropped
= es
->rx_discards
;
864 ons
->tx_dropped
= oes
->tx_discards
;
865 ns
->tx_dropped
= es
->tx_discards
;
867 /* pull in a couple PF stats if this is the main vsi */
868 if (vsi
== pf
->vsi
[pf
->lan_vsi
]) {
869 ns
->rx_crc_errors
= pf
->stats
.crc_errors
;
870 ns
->rx_errors
= pf
->stats
.crc_errors
+ pf
->stats
.illegal_bytes
;
871 ns
->rx_length_errors
= pf
->stats
.rx_length_errors
;
876 * i40e_update_pf_stats - Update the PF statistics counters.
877 * @pf: the PF to be updated
879 static void i40e_update_pf_stats(struct i40e_pf
*pf
)
881 struct i40e_hw_port_stats
*osd
= &pf
->stats_offsets
;
882 struct i40e_hw_port_stats
*nsd
= &pf
->stats
;
883 struct i40e_hw
*hw
= &pf
->hw
;
887 i40e_stat_update48(hw
, I40E_GLPRT_GORCH(hw
->port
),
888 I40E_GLPRT_GORCL(hw
->port
),
889 pf
->stat_offsets_loaded
,
890 &osd
->eth
.rx_bytes
, &nsd
->eth
.rx_bytes
);
891 i40e_stat_update48(hw
, I40E_GLPRT_GOTCH(hw
->port
),
892 I40E_GLPRT_GOTCL(hw
->port
),
893 pf
->stat_offsets_loaded
,
894 &osd
->eth
.tx_bytes
, &nsd
->eth
.tx_bytes
);
895 i40e_stat_update32(hw
, I40E_GLPRT_RDPC(hw
->port
),
896 pf
->stat_offsets_loaded
,
897 &osd
->eth
.rx_discards
,
898 &nsd
->eth
.rx_discards
);
899 i40e_stat_update48(hw
, I40E_GLPRT_UPRCH(hw
->port
),
900 I40E_GLPRT_UPRCL(hw
->port
),
901 pf
->stat_offsets_loaded
,
902 &osd
->eth
.rx_unicast
,
903 &nsd
->eth
.rx_unicast
);
904 i40e_stat_update48(hw
, I40E_GLPRT_MPRCH(hw
->port
),
905 I40E_GLPRT_MPRCL(hw
->port
),
906 pf
->stat_offsets_loaded
,
907 &osd
->eth
.rx_multicast
,
908 &nsd
->eth
.rx_multicast
);
909 i40e_stat_update48(hw
, I40E_GLPRT_BPRCH(hw
->port
),
910 I40E_GLPRT_BPRCL(hw
->port
),
911 pf
->stat_offsets_loaded
,
912 &osd
->eth
.rx_broadcast
,
913 &nsd
->eth
.rx_broadcast
);
914 i40e_stat_update48(hw
, I40E_GLPRT_UPTCH(hw
->port
),
915 I40E_GLPRT_UPTCL(hw
->port
),
916 pf
->stat_offsets_loaded
,
917 &osd
->eth
.tx_unicast
,
918 &nsd
->eth
.tx_unicast
);
919 i40e_stat_update48(hw
, I40E_GLPRT_MPTCH(hw
->port
),
920 I40E_GLPRT_MPTCL(hw
->port
),
921 pf
->stat_offsets_loaded
,
922 &osd
->eth
.tx_multicast
,
923 &nsd
->eth
.tx_multicast
);
924 i40e_stat_update48(hw
, I40E_GLPRT_BPTCH(hw
->port
),
925 I40E_GLPRT_BPTCL(hw
->port
),
926 pf
->stat_offsets_loaded
,
927 &osd
->eth
.tx_broadcast
,
928 &nsd
->eth
.tx_broadcast
);
930 i40e_stat_update32(hw
, I40E_GLPRT_TDOLD(hw
->port
),
931 pf
->stat_offsets_loaded
,
932 &osd
->tx_dropped_link_down
,
933 &nsd
->tx_dropped_link_down
);
935 i40e_stat_update32(hw
, I40E_GLPRT_CRCERRS(hw
->port
),
936 pf
->stat_offsets_loaded
,
937 &osd
->crc_errors
, &nsd
->crc_errors
);
939 i40e_stat_update32(hw
, I40E_GLPRT_ILLERRC(hw
->port
),
940 pf
->stat_offsets_loaded
,
941 &osd
->illegal_bytes
, &nsd
->illegal_bytes
);
943 i40e_stat_update32(hw
, I40E_GLPRT_MLFC(hw
->port
),
944 pf
->stat_offsets_loaded
,
945 &osd
->mac_local_faults
,
946 &nsd
->mac_local_faults
);
947 i40e_stat_update32(hw
, I40E_GLPRT_MRFC(hw
->port
),
948 pf
->stat_offsets_loaded
,
949 &osd
->mac_remote_faults
,
950 &nsd
->mac_remote_faults
);
952 i40e_stat_update32(hw
, I40E_GLPRT_RLEC(hw
->port
),
953 pf
->stat_offsets_loaded
,
954 &osd
->rx_length_errors
,
955 &nsd
->rx_length_errors
);
957 i40e_stat_update32(hw
, I40E_GLPRT_LXONRXC(hw
->port
),
958 pf
->stat_offsets_loaded
,
959 &osd
->link_xon_rx
, &nsd
->link_xon_rx
);
960 i40e_stat_update32(hw
, I40E_GLPRT_LXONTXC(hw
->port
),
961 pf
->stat_offsets_loaded
,
962 &osd
->link_xon_tx
, &nsd
->link_xon_tx
);
963 i40e_stat_update32(hw
, I40E_GLPRT_LXOFFRXC(hw
->port
),
964 pf
->stat_offsets_loaded
,
965 &osd
->link_xoff_rx
, &nsd
->link_xoff_rx
);
966 i40e_stat_update32(hw
, I40E_GLPRT_LXOFFTXC(hw
->port
),
967 pf
->stat_offsets_loaded
,
968 &osd
->link_xoff_tx
, &nsd
->link_xoff_tx
);
970 for (i
= 0; i
< 8; i
++) {
971 i40e_stat_update32(hw
, I40E_GLPRT_PXOFFRXC(hw
->port
, i
),
972 pf
->stat_offsets_loaded
,
973 &osd
->priority_xoff_rx
[i
],
974 &nsd
->priority_xoff_rx
[i
]);
975 i40e_stat_update32(hw
, I40E_GLPRT_PXONRXC(hw
->port
, i
),
976 pf
->stat_offsets_loaded
,
977 &osd
->priority_xon_rx
[i
],
978 &nsd
->priority_xon_rx
[i
]);
979 i40e_stat_update32(hw
, I40E_GLPRT_PXONTXC(hw
->port
, i
),
980 pf
->stat_offsets_loaded
,
981 &osd
->priority_xon_tx
[i
],
982 &nsd
->priority_xon_tx
[i
]);
983 i40e_stat_update32(hw
, I40E_GLPRT_PXOFFTXC(hw
->port
, i
),
984 pf
->stat_offsets_loaded
,
985 &osd
->priority_xoff_tx
[i
],
986 &nsd
->priority_xoff_tx
[i
]);
987 i40e_stat_update32(hw
,
988 I40E_GLPRT_RXON2OFFCNT(hw
->port
, i
),
989 pf
->stat_offsets_loaded
,
990 &osd
->priority_xon_2_xoff
[i
],
991 &nsd
->priority_xon_2_xoff
[i
]);
994 i40e_stat_update48(hw
, I40E_GLPRT_PRC64H(hw
->port
),
995 I40E_GLPRT_PRC64L(hw
->port
),
996 pf
->stat_offsets_loaded
,
997 &osd
->rx_size_64
, &nsd
->rx_size_64
);
998 i40e_stat_update48(hw
, I40E_GLPRT_PRC127H(hw
->port
),
999 I40E_GLPRT_PRC127L(hw
->port
),
1000 pf
->stat_offsets_loaded
,
1001 &osd
->rx_size_127
, &nsd
->rx_size_127
);
1002 i40e_stat_update48(hw
, I40E_GLPRT_PRC255H(hw
->port
),
1003 I40E_GLPRT_PRC255L(hw
->port
),
1004 pf
->stat_offsets_loaded
,
1005 &osd
->rx_size_255
, &nsd
->rx_size_255
);
1006 i40e_stat_update48(hw
, I40E_GLPRT_PRC511H(hw
->port
),
1007 I40E_GLPRT_PRC511L(hw
->port
),
1008 pf
->stat_offsets_loaded
,
1009 &osd
->rx_size_511
, &nsd
->rx_size_511
);
1010 i40e_stat_update48(hw
, I40E_GLPRT_PRC1023H(hw
->port
),
1011 I40E_GLPRT_PRC1023L(hw
->port
),
1012 pf
->stat_offsets_loaded
,
1013 &osd
->rx_size_1023
, &nsd
->rx_size_1023
);
1014 i40e_stat_update48(hw
, I40E_GLPRT_PRC1522H(hw
->port
),
1015 I40E_GLPRT_PRC1522L(hw
->port
),
1016 pf
->stat_offsets_loaded
,
1017 &osd
->rx_size_1522
, &nsd
->rx_size_1522
);
1018 i40e_stat_update48(hw
, I40E_GLPRT_PRC9522H(hw
->port
),
1019 I40E_GLPRT_PRC9522L(hw
->port
),
1020 pf
->stat_offsets_loaded
,
1021 &osd
->rx_size_big
, &nsd
->rx_size_big
);
1023 i40e_stat_update48(hw
, I40E_GLPRT_PTC64H(hw
->port
),
1024 I40E_GLPRT_PTC64L(hw
->port
),
1025 pf
->stat_offsets_loaded
,
1026 &osd
->tx_size_64
, &nsd
->tx_size_64
);
1027 i40e_stat_update48(hw
, I40E_GLPRT_PTC127H(hw
->port
),
1028 I40E_GLPRT_PTC127L(hw
->port
),
1029 pf
->stat_offsets_loaded
,
1030 &osd
->tx_size_127
, &nsd
->tx_size_127
);
1031 i40e_stat_update48(hw
, I40E_GLPRT_PTC255H(hw
->port
),
1032 I40E_GLPRT_PTC255L(hw
->port
),
1033 pf
->stat_offsets_loaded
,
1034 &osd
->tx_size_255
, &nsd
->tx_size_255
);
1035 i40e_stat_update48(hw
, I40E_GLPRT_PTC511H(hw
->port
),
1036 I40E_GLPRT_PTC511L(hw
->port
),
1037 pf
->stat_offsets_loaded
,
1038 &osd
->tx_size_511
, &nsd
->tx_size_511
);
1039 i40e_stat_update48(hw
, I40E_GLPRT_PTC1023H(hw
->port
),
1040 I40E_GLPRT_PTC1023L(hw
->port
),
1041 pf
->stat_offsets_loaded
,
1042 &osd
->tx_size_1023
, &nsd
->tx_size_1023
);
1043 i40e_stat_update48(hw
, I40E_GLPRT_PTC1522H(hw
->port
),
1044 I40E_GLPRT_PTC1522L(hw
->port
),
1045 pf
->stat_offsets_loaded
,
1046 &osd
->tx_size_1522
, &nsd
->tx_size_1522
);
1047 i40e_stat_update48(hw
, I40E_GLPRT_PTC9522H(hw
->port
),
1048 I40E_GLPRT_PTC9522L(hw
->port
),
1049 pf
->stat_offsets_loaded
,
1050 &osd
->tx_size_big
, &nsd
->tx_size_big
);
1052 i40e_stat_update32(hw
, I40E_GLPRT_RUC(hw
->port
),
1053 pf
->stat_offsets_loaded
,
1054 &osd
->rx_undersize
, &nsd
->rx_undersize
);
1055 i40e_stat_update32(hw
, I40E_GLPRT_RFC(hw
->port
),
1056 pf
->stat_offsets_loaded
,
1057 &osd
->rx_fragments
, &nsd
->rx_fragments
);
1058 i40e_stat_update32(hw
, I40E_GLPRT_ROC(hw
->port
),
1059 pf
->stat_offsets_loaded
,
1060 &osd
->rx_oversize
, &nsd
->rx_oversize
);
1061 i40e_stat_update32(hw
, I40E_GLPRT_RJC(hw
->port
),
1062 pf
->stat_offsets_loaded
,
1063 &osd
->rx_jabber
, &nsd
->rx_jabber
);
1066 i40e_stat_update_and_clear32(hw
,
1067 I40E_GLQF_PCNT(I40E_FD_ATR_STAT_IDX(hw
->pf_id
)),
1068 &nsd
->fd_atr_match
);
1069 i40e_stat_update_and_clear32(hw
,
1070 I40E_GLQF_PCNT(I40E_FD_SB_STAT_IDX(hw
->pf_id
)),
1072 i40e_stat_update_and_clear32(hw
,
1073 I40E_GLQF_PCNT(I40E_FD_ATR_TUNNEL_STAT_IDX(hw
->pf_id
)),
1074 &nsd
->fd_atr_tunnel_match
);
1076 val
= rd32(hw
, I40E_PRTPM_EEE_STAT
);
1077 nsd
->tx_lpi_status
=
1078 (val
& I40E_PRTPM_EEE_STAT_TX_LPI_STATUS_MASK
) >>
1079 I40E_PRTPM_EEE_STAT_TX_LPI_STATUS_SHIFT
;
1080 nsd
->rx_lpi_status
=
1081 (val
& I40E_PRTPM_EEE_STAT_RX_LPI_STATUS_MASK
) >>
1082 I40E_PRTPM_EEE_STAT_RX_LPI_STATUS_SHIFT
;
1083 i40e_stat_update32(hw
, I40E_PRTPM_TLPIC
,
1084 pf
->stat_offsets_loaded
,
1085 &osd
->tx_lpi_count
, &nsd
->tx_lpi_count
);
1086 i40e_stat_update32(hw
, I40E_PRTPM_RLPIC
,
1087 pf
->stat_offsets_loaded
,
1088 &osd
->rx_lpi_count
, &nsd
->rx_lpi_count
);
1090 if (pf
->flags
& I40E_FLAG_FD_SB_ENABLED
&&
1091 !(pf
->flags
& I40E_FLAG_FD_SB_AUTO_DISABLED
))
1092 nsd
->fd_sb_status
= true;
1094 nsd
->fd_sb_status
= false;
1096 if (pf
->flags
& I40E_FLAG_FD_ATR_ENABLED
&&
1097 !(pf
->flags
& I40E_FLAG_FD_ATR_AUTO_DISABLED
))
1098 nsd
->fd_atr_status
= true;
1100 nsd
->fd_atr_status
= false;
1102 pf
->stat_offsets_loaded
= true;
1106 * i40e_update_stats - Update the various statistics counters.
1107 * @vsi: the VSI to be updated
1109 * Update the various stats for this VSI and its related entities.
1111 void i40e_update_stats(struct i40e_vsi
*vsi
)
1113 struct i40e_pf
*pf
= vsi
->back
;
1115 if (vsi
== pf
->vsi
[pf
->lan_vsi
])
1116 i40e_update_pf_stats(pf
);
1118 i40e_update_vsi_stats(vsi
);
1122 * i40e_find_filter - Search VSI filter list for specific mac/vlan filter
1123 * @vsi: the VSI to be searched
1124 * @macaddr: the MAC address
1127 * Returns ptr to the filter object or NULL
1129 static struct i40e_mac_filter
*i40e_find_filter(struct i40e_vsi
*vsi
,
1130 const u8
*macaddr
, s16 vlan
)
1132 struct i40e_mac_filter
*f
;
1135 if (!vsi
|| !macaddr
)
1138 key
= i40e_addr_to_hkey(macaddr
);
1139 hash_for_each_possible(vsi
->mac_filter_hash
, f
, hlist
, key
) {
1140 if ((ether_addr_equal(macaddr
, f
->macaddr
)) &&
1148 * i40e_find_mac - Find a mac addr in the macvlan filters list
1149 * @vsi: the VSI to be searched
1150 * @macaddr: the MAC address we are searching for
1152 * Returns the first filter with the provided MAC address or NULL if
1153 * MAC address was not found
1155 struct i40e_mac_filter
*i40e_find_mac(struct i40e_vsi
*vsi
, const u8
*macaddr
)
1157 struct i40e_mac_filter
*f
;
1160 if (!vsi
|| !macaddr
)
1163 key
= i40e_addr_to_hkey(macaddr
);
1164 hash_for_each_possible(vsi
->mac_filter_hash
, f
, hlist
, key
) {
1165 if ((ether_addr_equal(macaddr
, f
->macaddr
)))
1172 * i40e_is_vsi_in_vlan - Check if VSI is in vlan mode
1173 * @vsi: the VSI to be searched
1175 * Returns true if VSI is in vlan mode or false otherwise
1177 bool i40e_is_vsi_in_vlan(struct i40e_vsi
*vsi
)
1179 /* If we have a PVID, always operate in VLAN mode */
1183 /* We need to operate in VLAN mode whenever we have any filters with
1184 * a VLAN other than I40E_VLAN_ALL. We could check the table each
1185 * time, incurring search cost repeatedly. However, we can notice two
1188 * 1) the only place where we can gain a VLAN filter is in
1191 * 2) the only place where filters are actually removed is in
1192 * i40e_sync_filters_subtask.
1194 * Thus, we can simply use a boolean value, has_vlan_filters which we
1195 * will set to true when we add a VLAN filter in i40e_add_filter. Then
1196 * we have to perform the full search after deleting filters in
1197 * i40e_sync_filters_subtask, but we already have to search
1198 * filters here and can perform the check at the same time. This
1199 * results in avoiding embedding a loop for VLAN mode inside another
1200 * loop over all the filters, and should maintain correctness as noted
1203 return vsi
->has_vlan_filter
;
1207 * i40e_correct_mac_vlan_filters - Correct non-VLAN filters if necessary
1208 * @vsi: the VSI to configure
1209 * @tmp_add_list: list of filters ready to be added
1210 * @tmp_del_list: list of filters ready to be deleted
1211 * @vlan_filters: the number of active VLAN filters
1213 * Update VLAN=0 and VLAN=-1 (I40E_VLAN_ANY) filters properly so that they
1214 * behave as expected. If we have any active VLAN filters remaining or about
1215 * to be added then we need to update non-VLAN filters to be marked as VLAN=0
1216 * so that they only match against untagged traffic. If we no longer have any
1217 * active VLAN filters, we need to make all non-VLAN filters marked as VLAN=-1
1218 * so that they match against both tagged and untagged traffic. In this way,
1219 * we ensure that we correctly receive the desired traffic. This ensures that
1220 * when we have an active VLAN we will receive only untagged traffic and
1221 * traffic matching active VLANs. If we have no active VLANs then we will
1222 * operate in non-VLAN mode and receive all traffic, tagged or untagged.
1224 * Finally, in a similar fashion, this function also corrects filters when
1225 * there is an active PVID assigned to this VSI.
1227 * In case of memory allocation failure return -ENOMEM. Otherwise, return 0.
1229 * This function is only expected to be called from within
1230 * i40e_sync_vsi_filters.
1232 * NOTE: This function expects to be called while under the
1233 * mac_filter_hash_lock
1235 static int i40e_correct_mac_vlan_filters(struct i40e_vsi
*vsi
,
1236 struct hlist_head
*tmp_add_list
,
1237 struct hlist_head
*tmp_del_list
,
1240 s16 pvid
= le16_to_cpu(vsi
->info
.pvid
);
1241 struct i40e_mac_filter
*f
, *add_head
;
1242 struct i40e_new_mac_filter
*new;
1243 struct hlist_node
*h
;
1246 /* To determine if a particular filter needs to be replaced we
1247 * have the three following conditions:
1249 * a) if we have a PVID assigned, then all filters which are
1250 * not marked as VLAN=PVID must be replaced with filters that
1252 * b) otherwise, if we have any active VLANS, all filters
1253 * which are marked as VLAN=-1 must be replaced with
1254 * filters marked as VLAN=0
1255 * c) finally, if we do not have any active VLANS, all filters
1256 * which are marked as VLAN=0 must be replaced with filters
1260 /* Update the filters about to be added in place */
1261 hlist_for_each_entry(new, tmp_add_list
, hlist
) {
1262 if (pvid
&& new->f
->vlan
!= pvid
)
1263 new->f
->vlan
= pvid
;
1264 else if (vlan_filters
&& new->f
->vlan
== I40E_VLAN_ANY
)
1266 else if (!vlan_filters
&& new->f
->vlan
== 0)
1267 new->f
->vlan
= I40E_VLAN_ANY
;
1270 /* Update the remaining active filters */
1271 hash_for_each_safe(vsi
->mac_filter_hash
, bkt
, h
, f
, hlist
) {
1272 /* Combine the checks for whether a filter needs to be changed
1273 * and then determine the new VLAN inside the if block, in
1274 * order to avoid duplicating code for adding the new filter
1275 * then deleting the old filter.
1277 if ((pvid
&& f
->vlan
!= pvid
) ||
1278 (vlan_filters
&& f
->vlan
== I40E_VLAN_ANY
) ||
1279 (!vlan_filters
&& f
->vlan
== 0)) {
1280 /* Determine the new vlan we will be adding */
1283 else if (vlan_filters
)
1286 new_vlan
= I40E_VLAN_ANY
;
1288 /* Create the new filter */
1289 add_head
= i40e_add_filter(vsi
, f
->macaddr
, new_vlan
);
1293 /* Create a temporary i40e_new_mac_filter */
1294 new = kzalloc(sizeof(*new), GFP_ATOMIC
);
1299 new->state
= add_head
->state
;
1301 /* Add the new filter to the tmp list */
1302 hlist_add_head(&new->hlist
, tmp_add_list
);
1304 /* Put the original filter into the delete list */
1305 f
->state
= I40E_FILTER_REMOVE
;
1306 hash_del(&f
->hlist
);
1307 hlist_add_head(&f
->hlist
, tmp_del_list
);
1311 vsi
->has_vlan_filter
= !!vlan_filters
;
1317 * i40e_rm_default_mac_filter - Remove the default MAC filter set by NVM
1318 * @vsi: the PF Main VSI - inappropriate for any other VSI
1319 * @macaddr: the MAC address
1321 * Remove whatever filter the firmware set up so the driver can manage
1322 * its own filtering intelligently.
1324 static void i40e_rm_default_mac_filter(struct i40e_vsi
*vsi
, u8
*macaddr
)
1326 struct i40e_aqc_remove_macvlan_element_data element
;
1327 struct i40e_pf
*pf
= vsi
->back
;
1329 /* Only appropriate for the PF main VSI */
1330 if (vsi
->type
!= I40E_VSI_MAIN
)
1333 memset(&element
, 0, sizeof(element
));
1334 ether_addr_copy(element
.mac_addr
, macaddr
);
1335 element
.vlan_tag
= 0;
1336 /* Ignore error returns, some firmware does it this way... */
1337 element
.flags
= I40E_AQC_MACVLAN_DEL_PERFECT_MATCH
;
1338 i40e_aq_remove_macvlan(&pf
->hw
, vsi
->seid
, &element
, 1, NULL
);
1340 memset(&element
, 0, sizeof(element
));
1341 ether_addr_copy(element
.mac_addr
, macaddr
);
1342 element
.vlan_tag
= 0;
1343 /* ...and some firmware does it this way. */
1344 element
.flags
= I40E_AQC_MACVLAN_DEL_PERFECT_MATCH
|
1345 I40E_AQC_MACVLAN_DEL_IGNORE_VLAN
;
1346 i40e_aq_remove_macvlan(&pf
->hw
, vsi
->seid
, &element
, 1, NULL
);
1350 * i40e_add_filter - Add a mac/vlan filter to the VSI
1351 * @vsi: the VSI to be searched
1352 * @macaddr: the MAC address
1355 * Returns ptr to the filter object or NULL when no memory available.
1357 * NOTE: This function is expected to be called with mac_filter_hash_lock
1360 struct i40e_mac_filter
*i40e_add_filter(struct i40e_vsi
*vsi
,
1361 const u8
*macaddr
, s16 vlan
)
1363 struct i40e_mac_filter
*f
;
1366 if (!vsi
|| !macaddr
)
1369 f
= i40e_find_filter(vsi
, macaddr
, vlan
);
1371 f
= kzalloc(sizeof(*f
), GFP_ATOMIC
);
1375 /* Update the boolean indicating if we need to function in
1379 vsi
->has_vlan_filter
= true;
1381 ether_addr_copy(f
->macaddr
, macaddr
);
1383 /* If we're in overflow promisc mode, set the state directly
1384 * to failed, so we don't bother to try sending the filter
1387 if (test_bit(__I40E_VSI_OVERFLOW_PROMISC
, vsi
->state
))
1388 f
->state
= I40E_FILTER_FAILED
;
1390 f
->state
= I40E_FILTER_NEW
;
1391 INIT_HLIST_NODE(&f
->hlist
);
1393 key
= i40e_addr_to_hkey(macaddr
);
1394 hash_add(vsi
->mac_filter_hash
, &f
->hlist
, key
);
1396 vsi
->flags
|= I40E_VSI_FLAG_FILTER_CHANGED
;
1397 vsi
->back
->flags
|= I40E_FLAG_FILTER_SYNC
;
1400 /* If we're asked to add a filter that has been marked for removal, it
1401 * is safe to simply restore it to active state. __i40e_del_filter
1402 * will have simply deleted any filters which were previously marked
1403 * NEW or FAILED, so if it is currently marked REMOVE it must have
1404 * previously been ACTIVE. Since we haven't yet run the sync filters
1405 * task, just restore this filter to the ACTIVE state so that the
1406 * sync task leaves it in place
1408 if (f
->state
== I40E_FILTER_REMOVE
)
1409 f
->state
= I40E_FILTER_ACTIVE
;
1415 * __i40e_del_filter - Remove a specific filter from the VSI
1416 * @vsi: VSI to remove from
1417 * @f: the filter to remove from the list
1419 * This function should be called instead of i40e_del_filter only if you know
1420 * the exact filter you will remove already, such as via i40e_find_filter or
1423 * NOTE: This function is expected to be called with mac_filter_hash_lock
1425 * ANOTHER NOTE: This function MUST be called from within the context of
1426 * the "safe" variants of any list iterators, e.g. list_for_each_entry_safe()
1427 * instead of list_for_each_entry().
1429 void __i40e_del_filter(struct i40e_vsi
*vsi
, struct i40e_mac_filter
*f
)
1434 /* If the filter was never added to firmware then we can just delete it
1435 * directly and we don't want to set the status to remove or else an
1436 * admin queue command will unnecessarily fire.
1438 if ((f
->state
== I40E_FILTER_FAILED
) ||
1439 (f
->state
== I40E_FILTER_NEW
)) {
1440 hash_del(&f
->hlist
);
1443 f
->state
= I40E_FILTER_REMOVE
;
1446 vsi
->flags
|= I40E_VSI_FLAG_FILTER_CHANGED
;
1447 vsi
->back
->flags
|= I40E_FLAG_FILTER_SYNC
;
1451 * i40e_del_filter - Remove a MAC/VLAN filter from the VSI
1452 * @vsi: the VSI to be searched
1453 * @macaddr: the MAC address
1456 * NOTE: This function is expected to be called with mac_filter_hash_lock
1458 * ANOTHER NOTE: This function MUST be called from within the context of
1459 * the "safe" variants of any list iterators, e.g. list_for_each_entry_safe()
1460 * instead of list_for_each_entry().
1462 void i40e_del_filter(struct i40e_vsi
*vsi
, const u8
*macaddr
, s16 vlan
)
1464 struct i40e_mac_filter
*f
;
1466 if (!vsi
|| !macaddr
)
1469 f
= i40e_find_filter(vsi
, macaddr
, vlan
);
1470 __i40e_del_filter(vsi
, f
);
1474 * i40e_add_mac_filter - Add a MAC filter for all active VLANs
1475 * @vsi: the VSI to be searched
1476 * @macaddr: the mac address to be filtered
1478 * If we're not in VLAN mode, just add the filter to I40E_VLAN_ANY. Otherwise,
1479 * go through all the macvlan filters and add a macvlan filter for each
1480 * unique vlan that already exists. If a PVID has been assigned, instead only
1481 * add the macaddr to that VLAN.
1483 * Returns last filter added on success, else NULL
1485 struct i40e_mac_filter
*i40e_add_mac_filter(struct i40e_vsi
*vsi
,
1488 struct i40e_mac_filter
*f
, *add
= NULL
;
1489 struct hlist_node
*h
;
1493 return i40e_add_filter(vsi
, macaddr
,
1494 le16_to_cpu(vsi
->info
.pvid
));
1496 if (!i40e_is_vsi_in_vlan(vsi
))
1497 return i40e_add_filter(vsi
, macaddr
, I40E_VLAN_ANY
);
1499 hash_for_each_safe(vsi
->mac_filter_hash
, bkt
, h
, f
, hlist
) {
1500 if (f
->state
== I40E_FILTER_REMOVE
)
1502 add
= i40e_add_filter(vsi
, macaddr
, f
->vlan
);
1511 * i40e_del_mac_filter - Remove a MAC filter from all VLANs
1512 * @vsi: the VSI to be searched
1513 * @macaddr: the mac address to be removed
1515 * Removes a given MAC address from a VSI regardless of what VLAN it has been
1518 * Returns 0 for success, or error
1520 int i40e_del_mac_filter(struct i40e_vsi
*vsi
, const u8
*macaddr
)
1522 struct i40e_mac_filter
*f
;
1523 struct hlist_node
*h
;
1527 WARN(!spin_is_locked(&vsi
->mac_filter_hash_lock
),
1528 "Missing mac_filter_hash_lock\n");
1529 hash_for_each_safe(vsi
->mac_filter_hash
, bkt
, h
, f
, hlist
) {
1530 if (ether_addr_equal(macaddr
, f
->macaddr
)) {
1531 __i40e_del_filter(vsi
, f
);
1543 * i40e_set_mac - NDO callback to set mac address
1544 * @netdev: network interface device structure
1545 * @p: pointer to an address structure
1547 * Returns 0 on success, negative on failure
1549 static int i40e_set_mac(struct net_device
*netdev
, void *p
)
1551 struct i40e_netdev_priv
*np
= netdev_priv(netdev
);
1552 struct i40e_vsi
*vsi
= np
->vsi
;
1553 struct i40e_pf
*pf
= vsi
->back
;
1554 struct i40e_hw
*hw
= &pf
->hw
;
1555 struct sockaddr
*addr
= p
;
1557 if (!is_valid_ether_addr(addr
->sa_data
))
1558 return -EADDRNOTAVAIL
;
1560 if (ether_addr_equal(netdev
->dev_addr
, addr
->sa_data
)) {
1561 netdev_info(netdev
, "already using mac address %pM\n",
1566 if (test_bit(__I40E_VSI_DOWN
, vsi
->back
->state
) ||
1567 test_bit(__I40E_RESET_RECOVERY_PENDING
, vsi
->back
->state
))
1568 return -EADDRNOTAVAIL
;
1570 if (ether_addr_equal(hw
->mac
.addr
, addr
->sa_data
))
1571 netdev_info(netdev
, "returning to hw mac address %pM\n",
1574 netdev_info(netdev
, "set new mac address %pM\n", addr
->sa_data
);
1576 /* Copy the address first, so that we avoid a possible race with
1577 * .set_rx_mode(). If we copy after changing the address in the filter
1578 * list, we might open ourselves to a narrow race window where
1579 * .set_rx_mode could delete our dev_addr filter and prevent traffic
1582 ether_addr_copy(netdev
->dev_addr
, addr
->sa_data
);
1584 spin_lock_bh(&vsi
->mac_filter_hash_lock
);
1585 i40e_del_mac_filter(vsi
, netdev
->dev_addr
);
1586 i40e_add_mac_filter(vsi
, addr
->sa_data
);
1587 spin_unlock_bh(&vsi
->mac_filter_hash_lock
);
1588 if (vsi
->type
== I40E_VSI_MAIN
) {
1591 ret
= i40e_aq_mac_address_write(&vsi
->back
->hw
,
1592 I40E_AQC_WRITE_TYPE_LAA_WOL
,
1593 addr
->sa_data
, NULL
);
1595 netdev_info(netdev
, "Ignoring error from firmware on LAA update, status %s, AQ ret %s\n",
1596 i40e_stat_str(hw
, ret
),
1597 i40e_aq_str(hw
, hw
->aq
.asq_last_status
));
1600 /* schedule our worker thread which will take care of
1601 * applying the new filter changes
1603 i40e_service_event_schedule(vsi
->back
);
1608 * i40e_config_rss_aq - Prepare for RSS using AQ commands
1609 * @vsi: vsi structure
1610 * @seed: RSS hash seed
1612 static int i40e_config_rss_aq(struct i40e_vsi
*vsi
, const u8
*seed
,
1613 u8
*lut
, u16 lut_size
)
1615 struct i40e_pf
*pf
= vsi
->back
;
1616 struct i40e_hw
*hw
= &pf
->hw
;
1620 struct i40e_aqc_get_set_rss_key_data
*seed_dw
=
1621 (struct i40e_aqc_get_set_rss_key_data
*)seed
;
1622 ret
= i40e_aq_set_rss_key(hw
, vsi
->id
, seed_dw
);
1624 dev_info(&pf
->pdev
->dev
,
1625 "Cannot set RSS key, err %s aq_err %s\n",
1626 i40e_stat_str(hw
, ret
),
1627 i40e_aq_str(hw
, hw
->aq
.asq_last_status
));
1632 bool pf_lut
= vsi
->type
== I40E_VSI_MAIN
? true : false;
1634 ret
= i40e_aq_set_rss_lut(hw
, vsi
->id
, pf_lut
, lut
, lut_size
);
1636 dev_info(&pf
->pdev
->dev
,
1637 "Cannot set RSS lut, err %s aq_err %s\n",
1638 i40e_stat_str(hw
, ret
),
1639 i40e_aq_str(hw
, hw
->aq
.asq_last_status
));
1647 * i40e_vsi_config_rss - Prepare for VSI(VMDq) RSS if used
1648 * @vsi: VSI structure
1650 static int i40e_vsi_config_rss(struct i40e_vsi
*vsi
)
1652 struct i40e_pf
*pf
= vsi
->back
;
1653 u8 seed
[I40E_HKEY_ARRAY_SIZE
];
1657 if (!(pf
->hw_features
& I40E_HW_RSS_AQ_CAPABLE
))
1660 vsi
->rss_size
= min_t(int, pf
->alloc_rss_size
,
1661 vsi
->num_queue_pairs
);
1664 lut
= kzalloc(vsi
->rss_table_size
, GFP_KERNEL
);
1668 /* Use the user configured hash keys and lookup table if there is one,
1669 * otherwise use default
1671 if (vsi
->rss_lut_user
)
1672 memcpy(lut
, vsi
->rss_lut_user
, vsi
->rss_table_size
);
1674 i40e_fill_rss_lut(pf
, lut
, vsi
->rss_table_size
, vsi
->rss_size
);
1675 if (vsi
->rss_hkey_user
)
1676 memcpy(seed
, vsi
->rss_hkey_user
, I40E_HKEY_ARRAY_SIZE
);
1678 netdev_rss_key_fill((void *)seed
, I40E_HKEY_ARRAY_SIZE
);
1679 ret
= i40e_config_rss_aq(vsi
, seed
, lut
, vsi
->rss_table_size
);
1685 * i40e_vsi_setup_queue_map_mqprio - Prepares mqprio based tc_config
1686 * @vsi: the VSI being configured,
1687 * @ctxt: VSI context structure
1688 * @enabled_tc: number of traffic classes to enable
1690 * Prepares VSI tc_config to have queue configurations based on MQPRIO options.
1692 static int i40e_vsi_setup_queue_map_mqprio(struct i40e_vsi
*vsi
,
1693 struct i40e_vsi_context
*ctxt
,
1696 u16 qcount
= 0, max_qcount
, qmap
, sections
= 0;
1697 int i
, override_q
, pow
, num_qps
, ret
;
1698 u8 netdev_tc
= 0, offset
= 0;
1700 if (vsi
->type
!= I40E_VSI_MAIN
)
1702 sections
= I40E_AQ_VSI_PROP_QUEUE_MAP_VALID
;
1703 sections
|= I40E_AQ_VSI_PROP_SCHED_VALID
;
1704 vsi
->tc_config
.numtc
= vsi
->mqprio_qopt
.qopt
.num_tc
;
1705 vsi
->tc_config
.enabled_tc
= enabled_tc
? enabled_tc
: 1;
1706 num_qps
= vsi
->mqprio_qopt
.qopt
.count
[0];
1708 /* find the next higher power-of-2 of num queue pairs */
1709 pow
= ilog2(num_qps
);
1710 if (!is_power_of_2(num_qps
))
1712 qmap
= (offset
<< I40E_AQ_VSI_TC_QUE_OFFSET_SHIFT
) |
1713 (pow
<< I40E_AQ_VSI_TC_QUE_NUMBER_SHIFT
);
1715 /* Setup queue offset/count for all TCs for given VSI */
1716 max_qcount
= vsi
->mqprio_qopt
.qopt
.count
[0];
1717 for (i
= 0; i
< I40E_MAX_TRAFFIC_CLASS
; i
++) {
1718 /* See if the given TC is enabled for the given VSI */
1719 if (vsi
->tc_config
.enabled_tc
& BIT(i
)) {
1720 offset
= vsi
->mqprio_qopt
.qopt
.offset
[i
];
1721 qcount
= vsi
->mqprio_qopt
.qopt
.count
[i
];
1722 if (qcount
> max_qcount
)
1723 max_qcount
= qcount
;
1724 vsi
->tc_config
.tc_info
[i
].qoffset
= offset
;
1725 vsi
->tc_config
.tc_info
[i
].qcount
= qcount
;
1726 vsi
->tc_config
.tc_info
[i
].netdev_tc
= netdev_tc
++;
1728 /* TC is not enabled so set the offset to
1729 * default queue and allocate one queue
1732 vsi
->tc_config
.tc_info
[i
].qoffset
= 0;
1733 vsi
->tc_config
.tc_info
[i
].qcount
= 1;
1734 vsi
->tc_config
.tc_info
[i
].netdev_tc
= 0;
1738 /* Set actual Tx/Rx queue pairs */
1739 vsi
->num_queue_pairs
= offset
+ qcount
;
1741 /* Setup queue TC[0].qmap for given VSI context */
1742 ctxt
->info
.tc_mapping
[0] = cpu_to_le16(qmap
);
1743 ctxt
->info
.mapping_flags
|= cpu_to_le16(I40E_AQ_VSI_QUE_MAP_CONTIG
);
1744 ctxt
->info
.queue_mapping
[0] = cpu_to_le16(vsi
->base_queue
);
1745 ctxt
->info
.valid_sections
|= cpu_to_le16(sections
);
1747 /* Reconfigure RSS for main VSI with max queue count */
1748 vsi
->rss_size
= max_qcount
;
1749 ret
= i40e_vsi_config_rss(vsi
);
1751 dev_info(&vsi
->back
->pdev
->dev
,
1752 "Failed to reconfig rss for num_queues (%u)\n",
1756 vsi
->reconfig_rss
= true;
1757 dev_dbg(&vsi
->back
->pdev
->dev
,
1758 "Reconfigured rss with num_queues (%u)\n", max_qcount
);
1760 /* Find queue count available for channel VSIs and starting offset
1763 override_q
= vsi
->mqprio_qopt
.qopt
.count
[0];
1764 if (override_q
&& override_q
< vsi
->num_queue_pairs
) {
1765 vsi
->cnt_q_avail
= vsi
->num_queue_pairs
- override_q
;
1766 vsi
->next_base_queue
= override_q
;
1772 * i40e_vsi_setup_queue_map - Setup a VSI queue map based on enabled_tc
1773 * @vsi: the VSI being setup
1774 * @ctxt: VSI context structure
1775 * @enabled_tc: Enabled TCs bitmap
1776 * @is_add: True if called before Add VSI
1778 * Setup VSI queue mapping for enabled traffic classes.
1780 static void i40e_vsi_setup_queue_map(struct i40e_vsi
*vsi
,
1781 struct i40e_vsi_context
*ctxt
,
1785 struct i40e_pf
*pf
= vsi
->back
;
1795 sections
= I40E_AQ_VSI_PROP_QUEUE_MAP_VALID
;
1798 if (enabled_tc
&& (vsi
->back
->flags
& I40E_FLAG_DCB_ENABLED
)) {
1799 /* Find numtc from enabled TC bitmap */
1800 for (i
= 0; i
< I40E_MAX_TRAFFIC_CLASS
; i
++) {
1801 if (enabled_tc
& BIT(i
)) /* TC is enabled */
1805 dev_warn(&pf
->pdev
->dev
, "DCB is enabled but no TC enabled, forcing TC0\n");
1809 /* At least TC0 is enabled in non-DCB, non-MQPRIO case */
1813 vsi
->tc_config
.numtc
= numtc
;
1814 vsi
->tc_config
.enabled_tc
= enabled_tc
? enabled_tc
: 1;
1815 /* Number of queues per enabled TC */
1816 qcount
= vsi
->alloc_queue_pairs
;
1818 num_tc_qps
= qcount
/ numtc
;
1819 num_tc_qps
= min_t(int, num_tc_qps
, i40e_pf_get_max_q_per_tc(pf
));
1821 /* Setup queue offset/count for all TCs for given VSI */
1822 for (i
= 0; i
< I40E_MAX_TRAFFIC_CLASS
; i
++) {
1823 /* See if the given TC is enabled for the given VSI */
1824 if (vsi
->tc_config
.enabled_tc
& BIT(i
)) {
1828 switch (vsi
->type
) {
1830 qcount
= min_t(int, pf
->alloc_rss_size
,
1834 case I40E_VSI_SRIOV
:
1835 case I40E_VSI_VMDQ2
:
1837 qcount
= num_tc_qps
;
1841 vsi
->tc_config
.tc_info
[i
].qoffset
= offset
;
1842 vsi
->tc_config
.tc_info
[i
].qcount
= qcount
;
1844 /* find the next higher power-of-2 of num queue pairs */
1847 while (num_qps
&& (BIT_ULL(pow
) < qcount
)) {
1852 vsi
->tc_config
.tc_info
[i
].netdev_tc
= netdev_tc
++;
1854 (offset
<< I40E_AQ_VSI_TC_QUE_OFFSET_SHIFT
) |
1855 (pow
<< I40E_AQ_VSI_TC_QUE_NUMBER_SHIFT
);
1859 /* TC is not enabled so set the offset to
1860 * default queue and allocate one queue
1863 vsi
->tc_config
.tc_info
[i
].qoffset
= 0;
1864 vsi
->tc_config
.tc_info
[i
].qcount
= 1;
1865 vsi
->tc_config
.tc_info
[i
].netdev_tc
= 0;
1869 ctxt
->info
.tc_mapping
[i
] = cpu_to_le16(qmap
);
1872 /* Set actual Tx/Rx queue pairs */
1873 vsi
->num_queue_pairs
= offset
;
1874 if ((vsi
->type
== I40E_VSI_MAIN
) && (numtc
== 1)) {
1875 if (vsi
->req_queue_pairs
> 0)
1876 vsi
->num_queue_pairs
= vsi
->req_queue_pairs
;
1877 else if (pf
->flags
& I40E_FLAG_MSIX_ENABLED
)
1878 vsi
->num_queue_pairs
= pf
->num_lan_msix
;
1881 /* Scheduler section valid can only be set for ADD VSI */
1883 sections
|= I40E_AQ_VSI_PROP_SCHED_VALID
;
1885 ctxt
->info
.up_enable_bits
= enabled_tc
;
1887 if (vsi
->type
== I40E_VSI_SRIOV
) {
1888 ctxt
->info
.mapping_flags
|=
1889 cpu_to_le16(I40E_AQ_VSI_QUE_MAP_NONCONTIG
);
1890 for (i
= 0; i
< vsi
->num_queue_pairs
; i
++)
1891 ctxt
->info
.queue_mapping
[i
] =
1892 cpu_to_le16(vsi
->base_queue
+ i
);
1894 ctxt
->info
.mapping_flags
|=
1895 cpu_to_le16(I40E_AQ_VSI_QUE_MAP_CONTIG
);
1896 ctxt
->info
.queue_mapping
[0] = cpu_to_le16(vsi
->base_queue
);
1898 ctxt
->info
.valid_sections
|= cpu_to_le16(sections
);
1902 * i40e_addr_sync - Callback for dev_(mc|uc)_sync to add address
1903 * @netdev: the netdevice
1904 * @addr: address to add
1906 * Called by __dev_(mc|uc)_sync when an address needs to be added. We call
1907 * __dev_(uc|mc)_sync from .set_rx_mode and guarantee to hold the hash lock.
1909 static int i40e_addr_sync(struct net_device
*netdev
, const u8
*addr
)
1911 struct i40e_netdev_priv
*np
= netdev_priv(netdev
);
1912 struct i40e_vsi
*vsi
= np
->vsi
;
1914 if (i40e_add_mac_filter(vsi
, addr
))
1921 * i40e_addr_unsync - Callback for dev_(mc|uc)_sync to remove address
1922 * @netdev: the netdevice
1923 * @addr: address to add
1925 * Called by __dev_(mc|uc)_sync when an address needs to be removed. We call
1926 * __dev_(uc|mc)_sync from .set_rx_mode and guarantee to hold the hash lock.
1928 static int i40e_addr_unsync(struct net_device
*netdev
, const u8
*addr
)
1930 struct i40e_netdev_priv
*np
= netdev_priv(netdev
);
1931 struct i40e_vsi
*vsi
= np
->vsi
;
1933 /* Under some circumstances, we might receive a request to delete
1934 * our own device address from our uc list. Because we store the
1935 * device address in the VSI's MAC/VLAN filter list, we need to ignore
1936 * such requests and not delete our device address from this list.
1938 if (ether_addr_equal(addr
, netdev
->dev_addr
))
1941 i40e_del_mac_filter(vsi
, addr
);
1947 * i40e_set_rx_mode - NDO callback to set the netdev filters
1948 * @netdev: network interface device structure
1950 static void i40e_set_rx_mode(struct net_device
*netdev
)
1952 struct i40e_netdev_priv
*np
= netdev_priv(netdev
);
1953 struct i40e_vsi
*vsi
= np
->vsi
;
1955 spin_lock_bh(&vsi
->mac_filter_hash_lock
);
1957 __dev_uc_sync(netdev
, i40e_addr_sync
, i40e_addr_unsync
);
1958 __dev_mc_sync(netdev
, i40e_addr_sync
, i40e_addr_unsync
);
1960 spin_unlock_bh(&vsi
->mac_filter_hash_lock
);
1962 /* check for other flag changes */
1963 if (vsi
->current_netdev_flags
!= vsi
->netdev
->flags
) {
1964 vsi
->flags
|= I40E_VSI_FLAG_FILTER_CHANGED
;
1965 vsi
->back
->flags
|= I40E_FLAG_FILTER_SYNC
;
1970 * i40e_undo_del_filter_entries - Undo the changes made to MAC filter entries
1971 * @vsi: Pointer to VSI struct
1972 * @from: Pointer to list which contains MAC filter entries - changes to
1973 * those entries needs to be undone.
1975 * MAC filter entries from this list were slated for deletion.
1977 static void i40e_undo_del_filter_entries(struct i40e_vsi
*vsi
,
1978 struct hlist_head
*from
)
1980 struct i40e_mac_filter
*f
;
1981 struct hlist_node
*h
;
1983 hlist_for_each_entry_safe(f
, h
, from
, hlist
) {
1984 u64 key
= i40e_addr_to_hkey(f
->macaddr
);
1986 /* Move the element back into MAC filter list*/
1987 hlist_del(&f
->hlist
);
1988 hash_add(vsi
->mac_filter_hash
, &f
->hlist
, key
);
1993 * i40e_undo_add_filter_entries - Undo the changes made to MAC filter entries
1994 * @vsi: Pointer to vsi struct
1995 * @from: Pointer to list which contains MAC filter entries - changes to
1996 * those entries needs to be undone.
1998 * MAC filter entries from this list were slated for addition.
2000 static void i40e_undo_add_filter_entries(struct i40e_vsi
*vsi
,
2001 struct hlist_head
*from
)
2003 struct i40e_new_mac_filter
*new;
2004 struct hlist_node
*h
;
2006 hlist_for_each_entry_safe(new, h
, from
, hlist
) {
2007 /* We can simply free the wrapper structure */
2008 hlist_del(&new->hlist
);
2014 * i40e_next_entry - Get the next non-broadcast filter from a list
2015 * @next: pointer to filter in list
2017 * Returns the next non-broadcast filter in the list. Required so that we
2018 * ignore broadcast filters within the list, since these are not handled via
2019 * the normal firmware update path.
2022 struct i40e_new_mac_filter
*i40e_next_filter(struct i40e_new_mac_filter
*next
)
2024 hlist_for_each_entry_continue(next
, hlist
) {
2025 if (!is_broadcast_ether_addr(next
->f
->macaddr
))
2033 * i40e_update_filter_state - Update filter state based on return data
2035 * @count: Number of filters added
2036 * @add_list: return data from fw
2037 * @head: pointer to first filter in current batch
2039 * MAC filter entries from list were slated to be added to device. Returns
2040 * number of successful filters. Note that 0 does NOT mean success!
2043 i40e_update_filter_state(int count
,
2044 struct i40e_aqc_add_macvlan_element_data
*add_list
,
2045 struct i40e_new_mac_filter
*add_head
)
2050 for (i
= 0; i
< count
; i
++) {
2051 /* Always check status of each filter. We don't need to check
2052 * the firmware return status because we pre-set the filter
2053 * status to I40E_AQC_MM_ERR_NO_RES when sending the filter
2054 * request to the adminq. Thus, if it no longer matches then
2055 * we know the filter is active.
2057 if (add_list
[i
].match_method
== I40E_AQC_MM_ERR_NO_RES
) {
2058 add_head
->state
= I40E_FILTER_FAILED
;
2060 add_head
->state
= I40E_FILTER_ACTIVE
;
2064 add_head
= i40e_next_filter(add_head
);
2073 * i40e_aqc_del_filters - Request firmware to delete a set of filters
2074 * @vsi: ptr to the VSI
2075 * @vsi_name: name to display in messages
2076 * @list: the list of filters to send to firmware
2077 * @num_del: the number of filters to delete
2078 * @retval: Set to -EIO on failure to delete
2080 * Send a request to firmware via AdminQ to delete a set of filters. Uses
2081 * *retval instead of a return value so that success does not force ret_val to
2082 * be set to 0. This ensures that a sequence of calls to this function
2083 * preserve the previous value of *retval on successful delete.
2086 void i40e_aqc_del_filters(struct i40e_vsi
*vsi
, const char *vsi_name
,
2087 struct i40e_aqc_remove_macvlan_element_data
*list
,
2088 int num_del
, int *retval
)
2090 struct i40e_hw
*hw
= &vsi
->back
->hw
;
2094 aq_ret
= i40e_aq_remove_macvlan(hw
, vsi
->seid
, list
, num_del
, NULL
);
2095 aq_err
= hw
->aq
.asq_last_status
;
2097 /* Explicitly ignore and do not report when firmware returns ENOENT */
2098 if (aq_ret
&& !(aq_err
== I40E_AQ_RC_ENOENT
)) {
2100 dev_info(&vsi
->back
->pdev
->dev
,
2101 "ignoring delete macvlan error on %s, err %s, aq_err %s\n",
2102 vsi_name
, i40e_stat_str(hw
, aq_ret
),
2103 i40e_aq_str(hw
, aq_err
));
2108 * i40e_aqc_add_filters - Request firmware to add a set of filters
2109 * @vsi: ptr to the VSI
2110 * @vsi_name: name to display in messages
2111 * @list: the list of filters to send to firmware
2112 * @add_head: Position in the add hlist
2113 * @num_add: the number of filters to add
2114 * @promisc_change: set to true on exit if promiscuous mode was forced on
2116 * Send a request to firmware via AdminQ to add a chunk of filters. Will set
2117 * promisc_changed to true if the firmware has run out of space for more
2121 void i40e_aqc_add_filters(struct i40e_vsi
*vsi
, const char *vsi_name
,
2122 struct i40e_aqc_add_macvlan_element_data
*list
,
2123 struct i40e_new_mac_filter
*add_head
,
2124 int num_add
, bool *promisc_changed
)
2126 struct i40e_hw
*hw
= &vsi
->back
->hw
;
2129 i40e_aq_add_macvlan(hw
, vsi
->seid
, list
, num_add
, NULL
);
2130 aq_err
= hw
->aq
.asq_last_status
;
2131 fcnt
= i40e_update_filter_state(num_add
, list
, add_head
);
2133 if (fcnt
!= num_add
) {
2134 *promisc_changed
= true;
2135 set_bit(__I40E_VSI_OVERFLOW_PROMISC
, vsi
->state
);
2136 dev_warn(&vsi
->back
->pdev
->dev
,
2137 "Error %s adding RX filters on %s, promiscuous mode forced on\n",
2138 i40e_aq_str(hw
, aq_err
),
2144 * i40e_aqc_broadcast_filter - Set promiscuous broadcast flags
2145 * @vsi: pointer to the VSI
2148 * This function sets or clears the promiscuous broadcast flags for VLAN
2149 * filters in order to properly receive broadcast frames. Assumes that only
2150 * broadcast filters are passed.
2152 * Returns status indicating success or failure;
2155 i40e_aqc_broadcast_filter(struct i40e_vsi
*vsi
, const char *vsi_name
,
2156 struct i40e_mac_filter
*f
)
2158 bool enable
= f
->state
== I40E_FILTER_NEW
;
2159 struct i40e_hw
*hw
= &vsi
->back
->hw
;
2162 if (f
->vlan
== I40E_VLAN_ANY
) {
2163 aq_ret
= i40e_aq_set_vsi_broadcast(hw
,
2168 aq_ret
= i40e_aq_set_vsi_bc_promisc_on_vlan(hw
,
2176 dev_warn(&vsi
->back
->pdev
->dev
,
2177 "Error %s setting broadcast promiscuous mode on %s\n",
2178 i40e_aq_str(hw
, hw
->aq
.asq_last_status
),
2185 * i40e_set_promiscuous - set promiscuous mode
2186 * @pf: board private structure
2187 * @promisc: promisc on or off
2189 * There are different ways of setting promiscuous mode on a PF depending on
2190 * what state/environment we're in. This identifies and sets it appropriately.
2191 * Returns 0 on success.
2193 static int i40e_set_promiscuous(struct i40e_pf
*pf
, bool promisc
)
2195 struct i40e_vsi
*vsi
= pf
->vsi
[pf
->lan_vsi
];
2196 struct i40e_hw
*hw
= &pf
->hw
;
2199 if (vsi
->type
== I40E_VSI_MAIN
&&
2200 pf
->lan_veb
!= I40E_NO_VEB
&&
2201 !(pf
->flags
& I40E_FLAG_MFP_ENABLED
)) {
2202 /* set defport ON for Main VSI instead of true promisc
2203 * this way we will get all unicast/multicast and VLAN
2204 * promisc behavior but will not get VF or VMDq traffic
2205 * replicated on the Main VSI.
2208 aq_ret
= i40e_aq_set_default_vsi(hw
,
2212 aq_ret
= i40e_aq_clear_default_vsi(hw
,
2216 dev_info(&pf
->pdev
->dev
,
2217 "Set default VSI failed, err %s, aq_err %s\n",
2218 i40e_stat_str(hw
, aq_ret
),
2219 i40e_aq_str(hw
, hw
->aq
.asq_last_status
));
2222 aq_ret
= i40e_aq_set_vsi_unicast_promiscuous(
2228 dev_info(&pf
->pdev
->dev
,
2229 "set unicast promisc failed, err %s, aq_err %s\n",
2230 i40e_stat_str(hw
, aq_ret
),
2231 i40e_aq_str(hw
, hw
->aq
.asq_last_status
));
2233 aq_ret
= i40e_aq_set_vsi_multicast_promiscuous(
2238 dev_info(&pf
->pdev
->dev
,
2239 "set multicast promisc failed, err %s, aq_err %s\n",
2240 i40e_stat_str(hw
, aq_ret
),
2241 i40e_aq_str(hw
, hw
->aq
.asq_last_status
));
2246 pf
->cur_promisc
= promisc
;
2252 * i40e_sync_vsi_filters - Update the VSI filter list to the HW
2253 * @vsi: ptr to the VSI
2255 * Push any outstanding VSI filter changes through the AdminQ.
2257 * Returns 0 or error value
2259 int i40e_sync_vsi_filters(struct i40e_vsi
*vsi
)
2261 struct hlist_head tmp_add_list
, tmp_del_list
;
2262 struct i40e_mac_filter
*f
;
2263 struct i40e_new_mac_filter
*new, *add_head
= NULL
;
2264 struct i40e_hw
*hw
= &vsi
->back
->hw
;
2265 unsigned int failed_filters
= 0;
2266 unsigned int vlan_filters
= 0;
2267 bool promisc_changed
= false;
2268 char vsi_name
[16] = "PF";
2269 int filter_list_len
= 0;
2270 i40e_status aq_ret
= 0;
2271 u32 changed_flags
= 0;
2272 struct hlist_node
*h
;
2281 /* empty array typed pointers, kcalloc later */
2282 struct i40e_aqc_add_macvlan_element_data
*add_list
;
2283 struct i40e_aqc_remove_macvlan_element_data
*del_list
;
2285 while (test_and_set_bit(__I40E_VSI_SYNCING_FILTERS
, vsi
->state
))
2286 usleep_range(1000, 2000);
2290 changed_flags
= vsi
->current_netdev_flags
^ vsi
->netdev
->flags
;
2291 vsi
->current_netdev_flags
= vsi
->netdev
->flags
;
2294 INIT_HLIST_HEAD(&tmp_add_list
);
2295 INIT_HLIST_HEAD(&tmp_del_list
);
2297 if (vsi
->type
== I40E_VSI_SRIOV
)
2298 snprintf(vsi_name
, sizeof(vsi_name
) - 1, "VF %d", vsi
->vf_id
);
2299 else if (vsi
->type
!= I40E_VSI_MAIN
)
2300 snprintf(vsi_name
, sizeof(vsi_name
) - 1, "vsi %d", vsi
->seid
);
2302 if (vsi
->flags
& I40E_VSI_FLAG_FILTER_CHANGED
) {
2303 vsi
->flags
&= ~I40E_VSI_FLAG_FILTER_CHANGED
;
2305 spin_lock_bh(&vsi
->mac_filter_hash_lock
);
2306 /* Create a list of filters to delete. */
2307 hash_for_each_safe(vsi
->mac_filter_hash
, bkt
, h
, f
, hlist
) {
2308 if (f
->state
== I40E_FILTER_REMOVE
) {
2309 /* Move the element into temporary del_list */
2310 hash_del(&f
->hlist
);
2311 hlist_add_head(&f
->hlist
, &tmp_del_list
);
2313 /* Avoid counting removed filters */
2316 if (f
->state
== I40E_FILTER_NEW
) {
2317 /* Create a temporary i40e_new_mac_filter */
2318 new = kzalloc(sizeof(*new), GFP_ATOMIC
);
2320 goto err_no_memory_locked
;
2322 /* Store pointer to the real filter */
2324 new->state
= f
->state
;
2326 /* Add it to the hash list */
2327 hlist_add_head(&new->hlist
, &tmp_add_list
);
2330 /* Count the number of active (current and new) VLAN
2331 * filters we have now. Does not count filters which
2332 * are marked for deletion.
2338 retval
= i40e_correct_mac_vlan_filters(vsi
,
2343 goto err_no_memory_locked
;
2345 spin_unlock_bh(&vsi
->mac_filter_hash_lock
);
2348 /* Now process 'del_list' outside the lock */
2349 if (!hlist_empty(&tmp_del_list
)) {
2350 filter_list_len
= hw
->aq
.asq_buf_size
/
2351 sizeof(struct i40e_aqc_remove_macvlan_element_data
);
2352 list_size
= filter_list_len
*
2353 sizeof(struct i40e_aqc_remove_macvlan_element_data
);
2354 del_list
= kzalloc(list_size
, GFP_ATOMIC
);
2358 hlist_for_each_entry_safe(f
, h
, &tmp_del_list
, hlist
) {
2361 /* handle broadcast filters by updating the broadcast
2362 * promiscuous flag and release filter list.
2364 if (is_broadcast_ether_addr(f
->macaddr
)) {
2365 i40e_aqc_broadcast_filter(vsi
, vsi_name
, f
);
2367 hlist_del(&f
->hlist
);
2372 /* add to delete list */
2373 ether_addr_copy(del_list
[num_del
].mac_addr
, f
->macaddr
);
2374 if (f
->vlan
== I40E_VLAN_ANY
) {
2375 del_list
[num_del
].vlan_tag
= 0;
2376 cmd_flags
|= I40E_AQC_MACVLAN_DEL_IGNORE_VLAN
;
2378 del_list
[num_del
].vlan_tag
=
2379 cpu_to_le16((u16
)(f
->vlan
));
2382 cmd_flags
|= I40E_AQC_MACVLAN_DEL_PERFECT_MATCH
;
2383 del_list
[num_del
].flags
= cmd_flags
;
2386 /* flush a full buffer */
2387 if (num_del
== filter_list_len
) {
2388 i40e_aqc_del_filters(vsi
, vsi_name
, del_list
,
2390 memset(del_list
, 0, list_size
);
2393 /* Release memory for MAC filter entries which were
2394 * synced up with HW.
2396 hlist_del(&f
->hlist
);
2401 i40e_aqc_del_filters(vsi
, vsi_name
, del_list
,
2409 if (!hlist_empty(&tmp_add_list
)) {
2410 /* Do all the adds now. */
2411 filter_list_len
= hw
->aq
.asq_buf_size
/
2412 sizeof(struct i40e_aqc_add_macvlan_element_data
);
2413 list_size
= filter_list_len
*
2414 sizeof(struct i40e_aqc_add_macvlan_element_data
);
2415 add_list
= kzalloc(list_size
, GFP_ATOMIC
);
2420 hlist_for_each_entry_safe(new, h
, &tmp_add_list
, hlist
) {
2421 if (test_bit(__I40E_VSI_OVERFLOW_PROMISC
,
2423 new->state
= I40E_FILTER_FAILED
;
2427 /* handle broadcast filters by updating the broadcast
2428 * promiscuous flag instead of adding a MAC filter.
2430 if (is_broadcast_ether_addr(new->f
->macaddr
)) {
2431 if (i40e_aqc_broadcast_filter(vsi
, vsi_name
,
2433 new->state
= I40E_FILTER_FAILED
;
2435 new->state
= I40E_FILTER_ACTIVE
;
2439 /* add to add array */
2443 ether_addr_copy(add_list
[num_add
].mac_addr
,
2445 if (new->f
->vlan
== I40E_VLAN_ANY
) {
2446 add_list
[num_add
].vlan_tag
= 0;
2447 cmd_flags
|= I40E_AQC_MACVLAN_ADD_IGNORE_VLAN
;
2449 add_list
[num_add
].vlan_tag
=
2450 cpu_to_le16((u16
)(new->f
->vlan
));
2452 add_list
[num_add
].queue_number
= 0;
2453 /* set invalid match method for later detection */
2454 add_list
[num_add
].match_method
= I40E_AQC_MM_ERR_NO_RES
;
2455 cmd_flags
|= I40E_AQC_MACVLAN_ADD_PERFECT_MATCH
;
2456 add_list
[num_add
].flags
= cpu_to_le16(cmd_flags
);
2459 /* flush a full buffer */
2460 if (num_add
== filter_list_len
) {
2461 i40e_aqc_add_filters(vsi
, vsi_name
, add_list
,
2464 memset(add_list
, 0, list_size
);
2469 i40e_aqc_add_filters(vsi
, vsi_name
, add_list
, add_head
,
2470 num_add
, &promisc_changed
);
2472 /* Now move all of the filters from the temp add list back to
2475 spin_lock_bh(&vsi
->mac_filter_hash_lock
);
2476 hlist_for_each_entry_safe(new, h
, &tmp_add_list
, hlist
) {
2477 /* Only update the state if we're still NEW */
2478 if (new->f
->state
== I40E_FILTER_NEW
)
2479 new->f
->state
= new->state
;
2480 hlist_del(&new->hlist
);
2483 spin_unlock_bh(&vsi
->mac_filter_hash_lock
);
2488 /* Determine the number of active and failed filters. */
2489 spin_lock_bh(&vsi
->mac_filter_hash_lock
);
2490 vsi
->active_filters
= 0;
2491 hash_for_each(vsi
->mac_filter_hash
, bkt
, f
, hlist
) {
2492 if (f
->state
== I40E_FILTER_ACTIVE
)
2493 vsi
->active_filters
++;
2494 else if (f
->state
== I40E_FILTER_FAILED
)
2497 spin_unlock_bh(&vsi
->mac_filter_hash_lock
);
2499 /* If promiscuous mode has changed, we need to calculate a new
2500 * threshold for when we are safe to exit
2502 if (promisc_changed
)
2503 vsi
->promisc_threshold
= (vsi
->active_filters
* 3) / 4;
2505 /* Check if we are able to exit overflow promiscuous mode. We can
2506 * safely exit if we didn't just enter, we no longer have any failed
2507 * filters, and we have reduced filters below the threshold value.
2509 if (test_bit(__I40E_VSI_OVERFLOW_PROMISC
, vsi
->state
) &&
2510 !promisc_changed
&& !failed_filters
&&
2511 (vsi
->active_filters
< vsi
->promisc_threshold
)) {
2512 dev_info(&pf
->pdev
->dev
,
2513 "filter logjam cleared on %s, leaving overflow promiscuous mode\n",
2515 clear_bit(__I40E_VSI_OVERFLOW_PROMISC
, vsi
->state
);
2516 promisc_changed
= true;
2517 vsi
->promisc_threshold
= 0;
2520 /* if the VF is not trusted do not do promisc */
2521 if ((vsi
->type
== I40E_VSI_SRIOV
) && !pf
->vf
[vsi
->vf_id
].trusted
) {
2522 clear_bit(__I40E_VSI_OVERFLOW_PROMISC
, vsi
->state
);
2526 /* check for changes in promiscuous modes */
2527 if (changed_flags
& IFF_ALLMULTI
) {
2528 bool cur_multipromisc
;
2530 cur_multipromisc
= !!(vsi
->current_netdev_flags
& IFF_ALLMULTI
);
2531 aq_ret
= i40e_aq_set_vsi_multicast_promiscuous(&vsi
->back
->hw
,
2536 retval
= i40e_aq_rc_to_posix(aq_ret
,
2537 hw
->aq
.asq_last_status
);
2538 dev_info(&pf
->pdev
->dev
,
2539 "set multi promisc failed on %s, err %s aq_err %s\n",
2541 i40e_stat_str(hw
, aq_ret
),
2542 i40e_aq_str(hw
, hw
->aq
.asq_last_status
));
2546 if ((changed_flags
& IFF_PROMISC
) || promisc_changed
) {
2549 cur_promisc
= (!!(vsi
->current_netdev_flags
& IFF_PROMISC
) ||
2550 test_bit(__I40E_VSI_OVERFLOW_PROMISC
,
2552 aq_ret
= i40e_set_promiscuous(pf
, cur_promisc
);
2554 retval
= i40e_aq_rc_to_posix(aq_ret
,
2555 hw
->aq
.asq_last_status
);
2556 dev_info(&pf
->pdev
->dev
,
2557 "Setting promiscuous %s failed on %s, err %s aq_err %s\n",
2558 cur_promisc
? "on" : "off",
2560 i40e_stat_str(hw
, aq_ret
),
2561 i40e_aq_str(hw
, hw
->aq
.asq_last_status
));
2565 /* if something went wrong then set the changed flag so we try again */
2567 vsi
->flags
|= I40E_VSI_FLAG_FILTER_CHANGED
;
2569 clear_bit(__I40E_VSI_SYNCING_FILTERS
, vsi
->state
);
2573 /* Restore elements on the temporary add and delete lists */
2574 spin_lock_bh(&vsi
->mac_filter_hash_lock
);
2575 err_no_memory_locked
:
2576 i40e_undo_del_filter_entries(vsi
, &tmp_del_list
);
2577 i40e_undo_add_filter_entries(vsi
, &tmp_add_list
);
2578 spin_unlock_bh(&vsi
->mac_filter_hash_lock
);
2580 vsi
->flags
|= I40E_VSI_FLAG_FILTER_CHANGED
;
2581 clear_bit(__I40E_VSI_SYNCING_FILTERS
, vsi
->state
);
2586 * i40e_sync_filters_subtask - Sync the VSI filter list with HW
2587 * @pf: board private structure
2589 static void i40e_sync_filters_subtask(struct i40e_pf
*pf
)
2593 if (!pf
|| !(pf
->flags
& I40E_FLAG_FILTER_SYNC
))
2595 pf
->flags
&= ~I40E_FLAG_FILTER_SYNC
;
2597 for (v
= 0; v
< pf
->num_alloc_vsi
; v
++) {
2599 (pf
->vsi
[v
]->flags
& I40E_VSI_FLAG_FILTER_CHANGED
)) {
2600 int ret
= i40e_sync_vsi_filters(pf
->vsi
[v
]);
2603 /* come back and try again later */
2604 pf
->flags
|= I40E_FLAG_FILTER_SYNC
;
2612 * i40e_max_xdp_frame_size - returns the maximum allowed frame size for XDP
2615 static int i40e_max_xdp_frame_size(struct i40e_vsi
*vsi
)
2617 if (PAGE_SIZE
>= 8192 || (vsi
->back
->flags
& I40E_FLAG_LEGACY_RX
))
2618 return I40E_RXBUFFER_2048
;
2620 return I40E_RXBUFFER_3072
;
2624 * i40e_change_mtu - NDO callback to change the Maximum Transfer Unit
2625 * @netdev: network interface device structure
2626 * @new_mtu: new value for maximum frame size
2628 * Returns 0 on success, negative on failure
2630 static int i40e_change_mtu(struct net_device
*netdev
, int new_mtu
)
2632 struct i40e_netdev_priv
*np
= netdev_priv(netdev
);
2633 struct i40e_vsi
*vsi
= np
->vsi
;
2634 struct i40e_pf
*pf
= vsi
->back
;
2636 if (i40e_enabled_xdp_vsi(vsi
)) {
2637 int frame_size
= new_mtu
+ ETH_HLEN
+ ETH_FCS_LEN
+ VLAN_HLEN
;
2639 if (frame_size
> i40e_max_xdp_frame_size(vsi
))
2643 netdev_info(netdev
, "changing MTU from %d to %d\n",
2644 netdev
->mtu
, new_mtu
);
2645 netdev
->mtu
= new_mtu
;
2646 if (netif_running(netdev
))
2647 i40e_vsi_reinit_locked(vsi
);
2648 pf
->flags
|= (I40E_FLAG_SERVICE_CLIENT_REQUESTED
|
2649 I40E_FLAG_CLIENT_L2_CHANGE
);
2654 * i40e_ioctl - Access the hwtstamp interface
2655 * @netdev: network interface device structure
2656 * @ifr: interface request data
2657 * @cmd: ioctl command
2659 int i40e_ioctl(struct net_device
*netdev
, struct ifreq
*ifr
, int cmd
)
2661 struct i40e_netdev_priv
*np
= netdev_priv(netdev
);
2662 struct i40e_pf
*pf
= np
->vsi
->back
;
2666 return i40e_ptp_get_ts_config(pf
, ifr
);
2668 return i40e_ptp_set_ts_config(pf
, ifr
);
2675 * i40e_vlan_stripping_enable - Turn on vlan stripping for the VSI
2676 * @vsi: the vsi being adjusted
2678 void i40e_vlan_stripping_enable(struct i40e_vsi
*vsi
)
2680 struct i40e_vsi_context ctxt
;
2683 if ((vsi
->info
.valid_sections
&
2684 cpu_to_le16(I40E_AQ_VSI_PROP_VLAN_VALID
)) &&
2685 ((vsi
->info
.port_vlan_flags
& I40E_AQ_VSI_PVLAN_MODE_MASK
) == 0))
2686 return; /* already enabled */
2688 vsi
->info
.valid_sections
= cpu_to_le16(I40E_AQ_VSI_PROP_VLAN_VALID
);
2689 vsi
->info
.port_vlan_flags
= I40E_AQ_VSI_PVLAN_MODE_ALL
|
2690 I40E_AQ_VSI_PVLAN_EMOD_STR_BOTH
;
2692 ctxt
.seid
= vsi
->seid
;
2693 ctxt
.info
= vsi
->info
;
2694 ret
= i40e_aq_update_vsi_params(&vsi
->back
->hw
, &ctxt
, NULL
);
2696 dev_info(&vsi
->back
->pdev
->dev
,
2697 "update vlan stripping failed, err %s aq_err %s\n",
2698 i40e_stat_str(&vsi
->back
->hw
, ret
),
2699 i40e_aq_str(&vsi
->back
->hw
,
2700 vsi
->back
->hw
.aq
.asq_last_status
));
2705 * i40e_vlan_stripping_disable - Turn off vlan stripping for the VSI
2706 * @vsi: the vsi being adjusted
2708 void i40e_vlan_stripping_disable(struct i40e_vsi
*vsi
)
2710 struct i40e_vsi_context ctxt
;
2713 if ((vsi
->info
.valid_sections
&
2714 cpu_to_le16(I40E_AQ_VSI_PROP_VLAN_VALID
)) &&
2715 ((vsi
->info
.port_vlan_flags
& I40E_AQ_VSI_PVLAN_EMOD_MASK
) ==
2716 I40E_AQ_VSI_PVLAN_EMOD_MASK
))
2717 return; /* already disabled */
2719 vsi
->info
.valid_sections
= cpu_to_le16(I40E_AQ_VSI_PROP_VLAN_VALID
);
2720 vsi
->info
.port_vlan_flags
= I40E_AQ_VSI_PVLAN_MODE_ALL
|
2721 I40E_AQ_VSI_PVLAN_EMOD_NOTHING
;
2723 ctxt
.seid
= vsi
->seid
;
2724 ctxt
.info
= vsi
->info
;
2725 ret
= i40e_aq_update_vsi_params(&vsi
->back
->hw
, &ctxt
, NULL
);
2727 dev_info(&vsi
->back
->pdev
->dev
,
2728 "update vlan stripping failed, err %s aq_err %s\n",
2729 i40e_stat_str(&vsi
->back
->hw
, ret
),
2730 i40e_aq_str(&vsi
->back
->hw
,
2731 vsi
->back
->hw
.aq
.asq_last_status
));
2736 * i40e_vlan_rx_register - Setup or shutdown vlan offload
2737 * @netdev: network interface to be adjusted
2738 * @features: netdev features to test if VLAN offload is enabled or not
2740 static void i40e_vlan_rx_register(struct net_device
*netdev
, u32 features
)
2742 struct i40e_netdev_priv
*np
= netdev_priv(netdev
);
2743 struct i40e_vsi
*vsi
= np
->vsi
;
2745 if (features
& NETIF_F_HW_VLAN_CTAG_RX
)
2746 i40e_vlan_stripping_enable(vsi
);
2748 i40e_vlan_stripping_disable(vsi
);
2752 * i40e_add_vlan_all_mac - Add a MAC/VLAN filter for each existing MAC address
2753 * @vsi: the vsi being configured
2754 * @vid: vlan id to be added (0 = untagged only , -1 = any)
2756 * This is a helper function for adding a new MAC/VLAN filter with the
2757 * specified VLAN for each existing MAC address already in the hash table.
2758 * This function does *not* perform any accounting to update filters based on
2761 * NOTE: this function expects to be called while under the
2762 * mac_filter_hash_lock
2764 int i40e_add_vlan_all_mac(struct i40e_vsi
*vsi
, s16 vid
)
2766 struct i40e_mac_filter
*f
, *add_f
;
2767 struct hlist_node
*h
;
2770 hash_for_each_safe(vsi
->mac_filter_hash
, bkt
, h
, f
, hlist
) {
2771 if (f
->state
== I40E_FILTER_REMOVE
)
2773 add_f
= i40e_add_filter(vsi
, f
->macaddr
, vid
);
2775 dev_info(&vsi
->back
->pdev
->dev
,
2776 "Could not add vlan filter %d for %pM\n",
2786 * i40e_vsi_add_vlan - Add VSI membership for given VLAN
2787 * @vsi: the VSI being configured
2788 * @vid: VLAN id to be added
2790 int i40e_vsi_add_vlan(struct i40e_vsi
*vsi
, u16 vid
)
2797 /* The network stack will attempt to add VID=0, with the intention to
2798 * receive priority tagged packets with a VLAN of 0. Our HW receives
2799 * these packets by default when configured to receive untagged
2800 * packets, so we don't need to add a filter for this case.
2801 * Additionally, HW interprets adding a VID=0 filter as meaning to
2802 * receive *only* tagged traffic and stops receiving untagged traffic.
2803 * Thus, we do not want to actually add a filter for VID=0
2808 /* Locked once because all functions invoked below iterates list*/
2809 spin_lock_bh(&vsi
->mac_filter_hash_lock
);
2810 err
= i40e_add_vlan_all_mac(vsi
, vid
);
2811 spin_unlock_bh(&vsi
->mac_filter_hash_lock
);
2815 /* schedule our worker thread which will take care of
2816 * applying the new filter changes
2818 i40e_service_event_schedule(vsi
->back
);
2823 * i40e_rm_vlan_all_mac - Remove MAC/VLAN pair for all MAC with the given VLAN
2824 * @vsi: the vsi being configured
2825 * @vid: vlan id to be removed (0 = untagged only , -1 = any)
2827 * This function should be used to remove all VLAN filters which match the
2828 * given VID. It does not schedule the service event and does not take the
2829 * mac_filter_hash_lock so it may be combined with other operations under
2830 * a single invocation of the mac_filter_hash_lock.
2832 * NOTE: this function expects to be called while under the
2833 * mac_filter_hash_lock
2835 void i40e_rm_vlan_all_mac(struct i40e_vsi
*vsi
, s16 vid
)
2837 struct i40e_mac_filter
*f
;
2838 struct hlist_node
*h
;
2841 hash_for_each_safe(vsi
->mac_filter_hash
, bkt
, h
, f
, hlist
) {
2843 __i40e_del_filter(vsi
, f
);
2848 * i40e_vsi_kill_vlan - Remove VSI membership for given VLAN
2849 * @vsi: the VSI being configured
2850 * @vid: VLAN id to be removed
2852 void i40e_vsi_kill_vlan(struct i40e_vsi
*vsi
, u16 vid
)
2854 if (!vid
|| vsi
->info
.pvid
)
2857 spin_lock_bh(&vsi
->mac_filter_hash_lock
);
2858 i40e_rm_vlan_all_mac(vsi
, vid
);
2859 spin_unlock_bh(&vsi
->mac_filter_hash_lock
);
2861 /* schedule our worker thread which will take care of
2862 * applying the new filter changes
2864 i40e_service_event_schedule(vsi
->back
);
2868 * i40e_vlan_rx_add_vid - Add a vlan id filter to HW offload
2869 * @netdev: network interface to be adjusted
2870 * @vid: vlan id to be added
2872 * net_device_ops implementation for adding vlan ids
2874 static int i40e_vlan_rx_add_vid(struct net_device
*netdev
,
2875 __always_unused __be16 proto
, u16 vid
)
2877 struct i40e_netdev_priv
*np
= netdev_priv(netdev
);
2878 struct i40e_vsi
*vsi
= np
->vsi
;
2881 if (vid
>= VLAN_N_VID
)
2884 ret
= i40e_vsi_add_vlan(vsi
, vid
);
2886 set_bit(vid
, vsi
->active_vlans
);
2892 * i40e_vlan_rx_kill_vid - Remove a vlan id filter from HW offload
2893 * @netdev: network interface to be adjusted
2894 * @vid: vlan id to be removed
2896 * net_device_ops implementation for removing vlan ids
2898 static int i40e_vlan_rx_kill_vid(struct net_device
*netdev
,
2899 __always_unused __be16 proto
, u16 vid
)
2901 struct i40e_netdev_priv
*np
= netdev_priv(netdev
);
2902 struct i40e_vsi
*vsi
= np
->vsi
;
2904 /* return code is ignored as there is nothing a user
2905 * can do about failure to remove and a log message was
2906 * already printed from the other function
2908 i40e_vsi_kill_vlan(vsi
, vid
);
2910 clear_bit(vid
, vsi
->active_vlans
);
2916 * i40e_restore_vlan - Reinstate vlans when vsi/netdev comes back up
2917 * @vsi: the vsi being brought back up
2919 static void i40e_restore_vlan(struct i40e_vsi
*vsi
)
2926 i40e_vlan_rx_register(vsi
->netdev
, vsi
->netdev
->features
);
2928 for_each_set_bit(vid
, vsi
->active_vlans
, VLAN_N_VID
)
2929 i40e_vlan_rx_add_vid(vsi
->netdev
, htons(ETH_P_8021Q
),
2934 * i40e_vsi_add_pvid - Add pvid for the VSI
2935 * @vsi: the vsi being adjusted
2936 * @vid: the vlan id to set as a PVID
2938 int i40e_vsi_add_pvid(struct i40e_vsi
*vsi
, u16 vid
)
2940 struct i40e_vsi_context ctxt
;
2943 vsi
->info
.valid_sections
= cpu_to_le16(I40E_AQ_VSI_PROP_VLAN_VALID
);
2944 vsi
->info
.pvid
= cpu_to_le16(vid
);
2945 vsi
->info
.port_vlan_flags
= I40E_AQ_VSI_PVLAN_MODE_TAGGED
|
2946 I40E_AQ_VSI_PVLAN_INSERT_PVID
|
2947 I40E_AQ_VSI_PVLAN_EMOD_STR
;
2949 ctxt
.seid
= vsi
->seid
;
2950 ctxt
.info
= vsi
->info
;
2951 ret
= i40e_aq_update_vsi_params(&vsi
->back
->hw
, &ctxt
, NULL
);
2953 dev_info(&vsi
->back
->pdev
->dev
,
2954 "add pvid failed, err %s aq_err %s\n",
2955 i40e_stat_str(&vsi
->back
->hw
, ret
),
2956 i40e_aq_str(&vsi
->back
->hw
,
2957 vsi
->back
->hw
.aq
.asq_last_status
));
2965 * i40e_vsi_remove_pvid - Remove the pvid from the VSI
2966 * @vsi: the vsi being adjusted
2968 * Just use the vlan_rx_register() service to put it back to normal
2970 void i40e_vsi_remove_pvid(struct i40e_vsi
*vsi
)
2972 i40e_vlan_stripping_disable(vsi
);
2978 * i40e_vsi_setup_tx_resources - Allocate VSI Tx queue resources
2979 * @vsi: ptr to the VSI
2981 * If this function returns with an error, then it's possible one or
2982 * more of the rings is populated (while the rest are not). It is the
2983 * callers duty to clean those orphaned rings.
2985 * Return 0 on success, negative on failure
2987 static int i40e_vsi_setup_tx_resources(struct i40e_vsi
*vsi
)
2991 for (i
= 0; i
< vsi
->num_queue_pairs
&& !err
; i
++)
2992 err
= i40e_setup_tx_descriptors(vsi
->tx_rings
[i
]);
2994 if (!i40e_enabled_xdp_vsi(vsi
))
2997 for (i
= 0; i
< vsi
->num_queue_pairs
&& !err
; i
++)
2998 err
= i40e_setup_tx_descriptors(vsi
->xdp_rings
[i
]);
3004 * i40e_vsi_free_tx_resources - Free Tx resources for VSI queues
3005 * @vsi: ptr to the VSI
3007 * Free VSI's transmit software resources
3009 static void i40e_vsi_free_tx_resources(struct i40e_vsi
*vsi
)
3013 if (vsi
->tx_rings
) {
3014 for (i
= 0; i
< vsi
->num_queue_pairs
; i
++)
3015 if (vsi
->tx_rings
[i
] && vsi
->tx_rings
[i
]->desc
)
3016 i40e_free_tx_resources(vsi
->tx_rings
[i
]);
3019 if (vsi
->xdp_rings
) {
3020 for (i
= 0; i
< vsi
->num_queue_pairs
; i
++)
3021 if (vsi
->xdp_rings
[i
] && vsi
->xdp_rings
[i
]->desc
)
3022 i40e_free_tx_resources(vsi
->xdp_rings
[i
]);
3027 * i40e_vsi_setup_rx_resources - Allocate VSI queues Rx resources
3028 * @vsi: ptr to the VSI
3030 * If this function returns with an error, then it's possible one or
3031 * more of the rings is populated (while the rest are not). It is the
3032 * callers duty to clean those orphaned rings.
3034 * Return 0 on success, negative on failure
3036 static int i40e_vsi_setup_rx_resources(struct i40e_vsi
*vsi
)
3040 for (i
= 0; i
< vsi
->num_queue_pairs
&& !err
; i
++)
3041 err
= i40e_setup_rx_descriptors(vsi
->rx_rings
[i
]);
3046 * i40e_vsi_free_rx_resources - Free Rx Resources for VSI queues
3047 * @vsi: ptr to the VSI
3049 * Free all receive software resources
3051 static void i40e_vsi_free_rx_resources(struct i40e_vsi
*vsi
)
3058 for (i
= 0; i
< vsi
->num_queue_pairs
; i
++)
3059 if (vsi
->rx_rings
[i
] && vsi
->rx_rings
[i
]->desc
)
3060 i40e_free_rx_resources(vsi
->rx_rings
[i
]);
3064 * i40e_config_xps_tx_ring - Configure XPS for a Tx ring
3065 * @ring: The Tx ring to configure
3067 * This enables/disables XPS for a given Tx descriptor ring
3068 * based on the TCs enabled for the VSI that ring belongs to.
3070 static void i40e_config_xps_tx_ring(struct i40e_ring
*ring
)
3074 if (!ring
->q_vector
|| !ring
->netdev
|| ring
->ch
)
3077 /* We only initialize XPS once, so as not to overwrite user settings */
3078 if (test_and_set_bit(__I40E_TX_XPS_INIT_DONE
, ring
->state
))
3081 cpu
= cpumask_local_spread(ring
->q_vector
->v_idx
, -1);
3082 netif_set_xps_queue(ring
->netdev
, get_cpu_mask(cpu
),
3087 * i40e_configure_tx_ring - Configure a transmit ring context and rest
3088 * @ring: The Tx ring to configure
3090 * Configure the Tx descriptor ring in the HMC context.
3092 static int i40e_configure_tx_ring(struct i40e_ring
*ring
)
3094 struct i40e_vsi
*vsi
= ring
->vsi
;
3095 u16 pf_q
= vsi
->base_queue
+ ring
->queue_index
;
3096 struct i40e_hw
*hw
= &vsi
->back
->hw
;
3097 struct i40e_hmc_obj_txq tx_ctx
;
3098 i40e_status err
= 0;
3101 /* some ATR related tx ring init */
3102 if (vsi
->back
->flags
& I40E_FLAG_FD_ATR_ENABLED
) {
3103 ring
->atr_sample_rate
= vsi
->back
->atr_sample_rate
;
3104 ring
->atr_count
= 0;
3106 ring
->atr_sample_rate
= 0;
3110 i40e_config_xps_tx_ring(ring
);
3112 /* clear the context structure first */
3113 memset(&tx_ctx
, 0, sizeof(tx_ctx
));
3115 tx_ctx
.new_context
= 1;
3116 tx_ctx
.base
= (ring
->dma
/ 128);
3117 tx_ctx
.qlen
= ring
->count
;
3118 tx_ctx
.fd_ena
= !!(vsi
->back
->flags
& (I40E_FLAG_FD_SB_ENABLED
|
3119 I40E_FLAG_FD_ATR_ENABLED
));
3120 tx_ctx
.timesync_ena
= !!(vsi
->back
->flags
& I40E_FLAG_PTP
);
3121 /* FDIR VSI tx ring can still use RS bit and writebacks */
3122 if (vsi
->type
!= I40E_VSI_FDIR
)
3123 tx_ctx
.head_wb_ena
= 1;
3124 tx_ctx
.head_wb_addr
= ring
->dma
+
3125 (ring
->count
* sizeof(struct i40e_tx_desc
));
3127 /* As part of VSI creation/update, FW allocates certain
3128 * Tx arbitration queue sets for each TC enabled for
3129 * the VSI. The FW returns the handles to these queue
3130 * sets as part of the response buffer to Add VSI,
3131 * Update VSI, etc. AQ commands. It is expected that
3132 * these queue set handles be associated with the Tx
3133 * queues by the driver as part of the TX queue context
3134 * initialization. This has to be done regardless of
3135 * DCB as by default everything is mapped to TC0.
3140 le16_to_cpu(ring
->ch
->info
.qs_handle
[ring
->dcb_tc
]);
3143 tx_ctx
.rdylist
= le16_to_cpu(vsi
->info
.qs_handle
[ring
->dcb_tc
]);
3145 tx_ctx
.rdylist_act
= 0;
3147 /* clear the context in the HMC */
3148 err
= i40e_clear_lan_tx_queue_context(hw
, pf_q
);
3150 dev_info(&vsi
->back
->pdev
->dev
,
3151 "Failed to clear LAN Tx queue context on Tx ring %d (pf_q %d), error: %d\n",
3152 ring
->queue_index
, pf_q
, err
);
3156 /* set the context in the HMC */
3157 err
= i40e_set_lan_tx_queue_context(hw
, pf_q
, &tx_ctx
);
3159 dev_info(&vsi
->back
->pdev
->dev
,
3160 "Failed to set LAN Tx queue context on Tx ring %d (pf_q %d, error: %d\n",
3161 ring
->queue_index
, pf_q
, err
);
3165 /* Now associate this queue with this PCI function */
3167 if (ring
->ch
->type
== I40E_VSI_VMDQ2
)
3168 qtx_ctl
= I40E_QTX_CTL_VM_QUEUE
;
3172 qtx_ctl
|= (ring
->ch
->vsi_number
<<
3173 I40E_QTX_CTL_VFVM_INDX_SHIFT
) &
3174 I40E_QTX_CTL_VFVM_INDX_MASK
;
3176 if (vsi
->type
== I40E_VSI_VMDQ2
) {
3177 qtx_ctl
= I40E_QTX_CTL_VM_QUEUE
;
3178 qtx_ctl
|= ((vsi
->id
) << I40E_QTX_CTL_VFVM_INDX_SHIFT
) &
3179 I40E_QTX_CTL_VFVM_INDX_MASK
;
3181 qtx_ctl
= I40E_QTX_CTL_PF_QUEUE
;
3185 qtx_ctl
|= ((hw
->pf_id
<< I40E_QTX_CTL_PF_INDX_SHIFT
) &
3186 I40E_QTX_CTL_PF_INDX_MASK
);
3187 wr32(hw
, I40E_QTX_CTL(pf_q
), qtx_ctl
);
3190 /* cache tail off for easier writes later */
3191 ring
->tail
= hw
->hw_addr
+ I40E_QTX_TAIL(pf_q
);
3197 * i40e_configure_rx_ring - Configure a receive ring context
3198 * @ring: The Rx ring to configure
3200 * Configure the Rx descriptor ring in the HMC context.
3202 static int i40e_configure_rx_ring(struct i40e_ring
*ring
)
3204 struct i40e_vsi
*vsi
= ring
->vsi
;
3205 u32 chain_len
= vsi
->back
->hw
.func_caps
.rx_buf_chain_len
;
3206 u16 pf_q
= vsi
->base_queue
+ ring
->queue_index
;
3207 struct i40e_hw
*hw
= &vsi
->back
->hw
;
3208 struct i40e_hmc_obj_rxq rx_ctx
;
3209 i40e_status err
= 0;
3211 bitmap_zero(ring
->state
, __I40E_RING_STATE_NBITS
);
3213 /* clear the context structure first */
3214 memset(&rx_ctx
, 0, sizeof(rx_ctx
));
3216 ring
->rx_buf_len
= vsi
->rx_buf_len
;
3218 rx_ctx
.dbuff
= DIV_ROUND_UP(ring
->rx_buf_len
,
3219 BIT_ULL(I40E_RXQ_CTX_DBUFF_SHIFT
));
3221 rx_ctx
.base
= (ring
->dma
/ 128);
3222 rx_ctx
.qlen
= ring
->count
;
3224 /* use 32 byte descriptors */
3227 /* descriptor type is always zero
3230 rx_ctx
.hsplit_0
= 0;
3232 rx_ctx
.rxmax
= min_t(u16
, vsi
->max_frame
, chain_len
* ring
->rx_buf_len
);
3233 if (hw
->revision_id
== 0)
3234 rx_ctx
.lrxqthresh
= 0;
3236 rx_ctx
.lrxqthresh
= 1;
3237 rx_ctx
.crcstrip
= 1;
3239 /* this controls whether VLAN is stripped from inner headers */
3241 /* set the prefena field to 1 because the manual says to */
3244 /* clear the context in the HMC */
3245 err
= i40e_clear_lan_rx_queue_context(hw
, pf_q
);
3247 dev_info(&vsi
->back
->pdev
->dev
,
3248 "Failed to clear LAN Rx queue context on Rx ring %d (pf_q %d), error: %d\n",
3249 ring
->queue_index
, pf_q
, err
);
3253 /* set the context in the HMC */
3254 err
= i40e_set_lan_rx_queue_context(hw
, pf_q
, &rx_ctx
);
3256 dev_info(&vsi
->back
->pdev
->dev
,
3257 "Failed to set LAN Rx queue context on Rx ring %d (pf_q %d), error: %d\n",
3258 ring
->queue_index
, pf_q
, err
);
3262 /* configure Rx buffer alignment */
3263 if (!vsi
->netdev
|| (vsi
->back
->flags
& I40E_FLAG_LEGACY_RX
))
3264 clear_ring_build_skb_enabled(ring
);
3266 set_ring_build_skb_enabled(ring
);
3268 /* cache tail for quicker writes, and clear the reg before use */
3269 ring
->tail
= hw
->hw_addr
+ I40E_QRX_TAIL(pf_q
);
3270 writel(0, ring
->tail
);
3272 i40e_alloc_rx_buffers(ring
, I40E_DESC_UNUSED(ring
));
3278 * i40e_vsi_configure_tx - Configure the VSI for Tx
3279 * @vsi: VSI structure describing this set of rings and resources
3281 * Configure the Tx VSI for operation.
3283 static int i40e_vsi_configure_tx(struct i40e_vsi
*vsi
)
3288 for (i
= 0; (i
< vsi
->num_queue_pairs
) && !err
; i
++)
3289 err
= i40e_configure_tx_ring(vsi
->tx_rings
[i
]);
3291 if (!i40e_enabled_xdp_vsi(vsi
))
3294 for (i
= 0; (i
< vsi
->num_queue_pairs
) && !err
; i
++)
3295 err
= i40e_configure_tx_ring(vsi
->xdp_rings
[i
]);
3301 * i40e_vsi_configure_rx - Configure the VSI for Rx
3302 * @vsi: the VSI being configured
3304 * Configure the Rx VSI for operation.
3306 static int i40e_vsi_configure_rx(struct i40e_vsi
*vsi
)
3311 if (!vsi
->netdev
|| (vsi
->back
->flags
& I40E_FLAG_LEGACY_RX
)) {
3312 vsi
->max_frame
= I40E_MAX_RXBUFFER
;
3313 vsi
->rx_buf_len
= I40E_RXBUFFER_2048
;
3314 #if (PAGE_SIZE < 8192)
3315 } else if (!I40E_2K_TOO_SMALL_WITH_PADDING
&&
3316 (vsi
->netdev
->mtu
<= ETH_DATA_LEN
)) {
3317 vsi
->max_frame
= I40E_RXBUFFER_1536
- NET_IP_ALIGN
;
3318 vsi
->rx_buf_len
= I40E_RXBUFFER_1536
- NET_IP_ALIGN
;
3321 vsi
->max_frame
= I40E_MAX_RXBUFFER
;
3322 vsi
->rx_buf_len
= (PAGE_SIZE
< 8192) ? I40E_RXBUFFER_3072
:
3326 /* set up individual rings */
3327 for (i
= 0; i
< vsi
->num_queue_pairs
&& !err
; i
++)
3328 err
= i40e_configure_rx_ring(vsi
->rx_rings
[i
]);
3334 * i40e_vsi_config_dcb_rings - Update rings to reflect DCB TC
3335 * @vsi: ptr to the VSI
3337 static void i40e_vsi_config_dcb_rings(struct i40e_vsi
*vsi
)
3339 struct i40e_ring
*tx_ring
, *rx_ring
;
3340 u16 qoffset
, qcount
;
3343 if (!(vsi
->back
->flags
& I40E_FLAG_DCB_ENABLED
)) {
3344 /* Reset the TC information */
3345 for (i
= 0; i
< vsi
->num_queue_pairs
; i
++) {
3346 rx_ring
= vsi
->rx_rings
[i
];
3347 tx_ring
= vsi
->tx_rings
[i
];
3348 rx_ring
->dcb_tc
= 0;
3349 tx_ring
->dcb_tc
= 0;
3354 for (n
= 0; n
< I40E_MAX_TRAFFIC_CLASS
; n
++) {
3355 if (!(vsi
->tc_config
.enabled_tc
& BIT_ULL(n
)))
3358 qoffset
= vsi
->tc_config
.tc_info
[n
].qoffset
;
3359 qcount
= vsi
->tc_config
.tc_info
[n
].qcount
;
3360 for (i
= qoffset
; i
< (qoffset
+ qcount
); i
++) {
3361 rx_ring
= vsi
->rx_rings
[i
];
3362 tx_ring
= vsi
->tx_rings
[i
];
3363 rx_ring
->dcb_tc
= n
;
3364 tx_ring
->dcb_tc
= n
;
3370 * i40e_set_vsi_rx_mode - Call set_rx_mode on a VSI
3371 * @vsi: ptr to the VSI
3373 static void i40e_set_vsi_rx_mode(struct i40e_vsi
*vsi
)
3376 i40e_set_rx_mode(vsi
->netdev
);
3380 * i40e_fdir_filter_restore - Restore the Sideband Flow Director filters
3381 * @vsi: Pointer to the targeted VSI
3383 * This function replays the hlist on the hw where all the SB Flow Director
3384 * filters were saved.
3386 static void i40e_fdir_filter_restore(struct i40e_vsi
*vsi
)
3388 struct i40e_fdir_filter
*filter
;
3389 struct i40e_pf
*pf
= vsi
->back
;
3390 struct hlist_node
*node
;
3392 if (!(pf
->flags
& I40E_FLAG_FD_SB_ENABLED
))
3395 /* Reset FDir counters as we're replaying all existing filters */
3396 pf
->fd_tcp4_filter_cnt
= 0;
3397 pf
->fd_udp4_filter_cnt
= 0;
3398 pf
->fd_sctp4_filter_cnt
= 0;
3399 pf
->fd_ip4_filter_cnt
= 0;
3401 hlist_for_each_entry_safe(filter
, node
,
3402 &pf
->fdir_filter_list
, fdir_node
) {
3403 i40e_add_del_fdir(vsi
, filter
, true);
3408 * i40e_vsi_configure - Set up the VSI for action
3409 * @vsi: the VSI being configured
3411 static int i40e_vsi_configure(struct i40e_vsi
*vsi
)
3415 i40e_set_vsi_rx_mode(vsi
);
3416 i40e_restore_vlan(vsi
);
3417 i40e_vsi_config_dcb_rings(vsi
);
3418 err
= i40e_vsi_configure_tx(vsi
);
3420 err
= i40e_vsi_configure_rx(vsi
);
3426 * i40e_vsi_configure_msix - MSIX mode Interrupt Config in the HW
3427 * @vsi: the VSI being configured
3429 static void i40e_vsi_configure_msix(struct i40e_vsi
*vsi
)
3431 bool has_xdp
= i40e_enabled_xdp_vsi(vsi
);
3432 struct i40e_pf
*pf
= vsi
->back
;
3433 struct i40e_hw
*hw
= &pf
->hw
;
3438 /* The interrupt indexing is offset by 1 in the PFINT_ITRn
3439 * and PFINT_LNKLSTn registers, e.g.:
3440 * PFINT_ITRn[0..n-1] gets msix-1..msix-n (qpair interrupts)
3442 qp
= vsi
->base_queue
;
3443 vector
= vsi
->base_vector
;
3444 for (i
= 0; i
< vsi
->num_q_vectors
; i
++, vector
++) {
3445 struct i40e_q_vector
*q_vector
= vsi
->q_vectors
[i
];
3447 q_vector
->itr_countdown
= ITR_COUNTDOWN_START
;
3448 q_vector
->rx
.itr
= ITR_TO_REG(vsi
->rx_rings
[i
]->rx_itr_setting
);
3449 q_vector
->rx
.latency_range
= I40E_LOW_LATENCY
;
3450 wr32(hw
, I40E_PFINT_ITRN(I40E_RX_ITR
, vector
- 1),
3452 q_vector
->tx
.itr
= ITR_TO_REG(vsi
->tx_rings
[i
]->tx_itr_setting
);
3453 q_vector
->tx
.latency_range
= I40E_LOW_LATENCY
;
3454 wr32(hw
, I40E_PFINT_ITRN(I40E_TX_ITR
, vector
- 1),
3456 wr32(hw
, I40E_PFINT_RATEN(vector
- 1),
3457 i40e_intrl_usec_to_reg(vsi
->int_rate_limit
));
3459 /* Linked list for the queuepairs assigned to this vector */
3460 wr32(hw
, I40E_PFINT_LNKLSTN(vector
- 1), qp
);
3461 for (q
= 0; q
< q_vector
->num_ringpairs
; q
++) {
3462 u32 nextqp
= has_xdp
? qp
+ vsi
->alloc_queue_pairs
: qp
;
3465 val
= I40E_QINT_RQCTL_CAUSE_ENA_MASK
|
3466 (I40E_RX_ITR
<< I40E_QINT_RQCTL_ITR_INDX_SHIFT
) |
3467 (vector
<< I40E_QINT_RQCTL_MSIX_INDX_SHIFT
) |
3468 (nextqp
<< I40E_QINT_RQCTL_NEXTQ_INDX_SHIFT
) |
3469 (I40E_QUEUE_TYPE_TX
<<
3470 I40E_QINT_RQCTL_NEXTQ_TYPE_SHIFT
);
3472 wr32(hw
, I40E_QINT_RQCTL(qp
), val
);
3475 val
= I40E_QINT_TQCTL_CAUSE_ENA_MASK
|
3476 (I40E_TX_ITR
<< I40E_QINT_TQCTL_ITR_INDX_SHIFT
) |
3477 (vector
<< I40E_QINT_TQCTL_MSIX_INDX_SHIFT
) |
3478 (qp
<< I40E_QINT_TQCTL_NEXTQ_INDX_SHIFT
) |
3479 (I40E_QUEUE_TYPE_TX
<<
3480 I40E_QINT_TQCTL_NEXTQ_TYPE_SHIFT
);
3482 wr32(hw
, I40E_QINT_TQCTL(nextqp
), val
);
3485 val
= I40E_QINT_TQCTL_CAUSE_ENA_MASK
|
3486 (I40E_TX_ITR
<< I40E_QINT_TQCTL_ITR_INDX_SHIFT
) |
3487 (vector
<< I40E_QINT_TQCTL_MSIX_INDX_SHIFT
) |
3488 ((qp
+ 1) << I40E_QINT_TQCTL_NEXTQ_INDX_SHIFT
) |
3489 (I40E_QUEUE_TYPE_RX
<<
3490 I40E_QINT_TQCTL_NEXTQ_TYPE_SHIFT
);
3492 /* Terminate the linked list */
3493 if (q
== (q_vector
->num_ringpairs
- 1))
3494 val
|= (I40E_QUEUE_END_OF_LIST
<<
3495 I40E_QINT_TQCTL_NEXTQ_INDX_SHIFT
);
3497 wr32(hw
, I40E_QINT_TQCTL(qp
), val
);
3506 * i40e_enable_misc_int_causes - enable the non-queue interrupts
3507 * @hw: ptr to the hardware info
3509 static void i40e_enable_misc_int_causes(struct i40e_pf
*pf
)
3511 struct i40e_hw
*hw
= &pf
->hw
;
3514 /* clear things first */
3515 wr32(hw
, I40E_PFINT_ICR0_ENA
, 0); /* disable all */
3516 rd32(hw
, I40E_PFINT_ICR0
); /* read to clear */
3518 val
= I40E_PFINT_ICR0_ENA_ECC_ERR_MASK
|
3519 I40E_PFINT_ICR0_ENA_MAL_DETECT_MASK
|
3520 I40E_PFINT_ICR0_ENA_GRST_MASK
|
3521 I40E_PFINT_ICR0_ENA_PCI_EXCEPTION_MASK
|
3522 I40E_PFINT_ICR0_ENA_GPIO_MASK
|
3523 I40E_PFINT_ICR0_ENA_HMC_ERR_MASK
|
3524 I40E_PFINT_ICR0_ENA_VFLR_MASK
|
3525 I40E_PFINT_ICR0_ENA_ADMINQ_MASK
;
3527 if (pf
->flags
& I40E_FLAG_IWARP_ENABLED
)
3528 val
|= I40E_PFINT_ICR0_ENA_PE_CRITERR_MASK
;
3530 if (pf
->flags
& I40E_FLAG_PTP
)
3531 val
|= I40E_PFINT_ICR0_ENA_TIMESYNC_MASK
;
3533 wr32(hw
, I40E_PFINT_ICR0_ENA
, val
);
3535 /* SW_ITR_IDX = 0, but don't change INTENA */
3536 wr32(hw
, I40E_PFINT_DYN_CTL0
, I40E_PFINT_DYN_CTL0_SW_ITR_INDX_MASK
|
3537 I40E_PFINT_DYN_CTL0_INTENA_MSK_MASK
);
3539 /* OTHER_ITR_IDX = 0 */
3540 wr32(hw
, I40E_PFINT_STAT_CTL0
, 0);
3544 * i40e_configure_msi_and_legacy - Legacy mode interrupt config in the HW
3545 * @vsi: the VSI being configured
3547 static void i40e_configure_msi_and_legacy(struct i40e_vsi
*vsi
)
3549 u32 nextqp
= i40e_enabled_xdp_vsi(vsi
) ? vsi
->alloc_queue_pairs
: 0;
3550 struct i40e_q_vector
*q_vector
= vsi
->q_vectors
[0];
3551 struct i40e_pf
*pf
= vsi
->back
;
3552 struct i40e_hw
*hw
= &pf
->hw
;
3555 /* set the ITR configuration */
3556 q_vector
->itr_countdown
= ITR_COUNTDOWN_START
;
3557 q_vector
->rx
.itr
= ITR_TO_REG(vsi
->rx_rings
[0]->rx_itr_setting
);
3558 q_vector
->rx
.latency_range
= I40E_LOW_LATENCY
;
3559 wr32(hw
, I40E_PFINT_ITR0(I40E_RX_ITR
), q_vector
->rx
.itr
);
3560 q_vector
->tx
.itr
= ITR_TO_REG(vsi
->tx_rings
[0]->tx_itr_setting
);
3561 q_vector
->tx
.latency_range
= I40E_LOW_LATENCY
;
3562 wr32(hw
, I40E_PFINT_ITR0(I40E_TX_ITR
), q_vector
->tx
.itr
);
3564 i40e_enable_misc_int_causes(pf
);
3566 /* FIRSTQ_INDX = 0, FIRSTQ_TYPE = 0 (rx) */
3567 wr32(hw
, I40E_PFINT_LNKLST0
, 0);
3569 /* Associate the queue pair to the vector and enable the queue int */
3570 val
= I40E_QINT_RQCTL_CAUSE_ENA_MASK
|
3571 (I40E_RX_ITR
<< I40E_QINT_RQCTL_ITR_INDX_SHIFT
) |
3572 (nextqp
<< I40E_QINT_RQCTL_NEXTQ_INDX_SHIFT
)|
3573 (I40E_QUEUE_TYPE_TX
<< I40E_QINT_TQCTL_NEXTQ_TYPE_SHIFT
);
3575 wr32(hw
, I40E_QINT_RQCTL(0), val
);
3577 if (i40e_enabled_xdp_vsi(vsi
)) {
3578 val
= I40E_QINT_TQCTL_CAUSE_ENA_MASK
|
3579 (I40E_TX_ITR
<< I40E_QINT_TQCTL_ITR_INDX_SHIFT
)|
3581 << I40E_QINT_TQCTL_NEXTQ_TYPE_SHIFT
);
3583 wr32(hw
, I40E_QINT_TQCTL(nextqp
), val
);
3586 val
= I40E_QINT_TQCTL_CAUSE_ENA_MASK
|
3587 (I40E_TX_ITR
<< I40E_QINT_TQCTL_ITR_INDX_SHIFT
) |
3588 (I40E_QUEUE_END_OF_LIST
<< I40E_QINT_TQCTL_NEXTQ_INDX_SHIFT
);
3590 wr32(hw
, I40E_QINT_TQCTL(0), val
);
3595 * i40e_irq_dynamic_disable_icr0 - Disable default interrupt generation for icr0
3596 * @pf: board private structure
3598 void i40e_irq_dynamic_disable_icr0(struct i40e_pf
*pf
)
3600 struct i40e_hw
*hw
= &pf
->hw
;
3602 wr32(hw
, I40E_PFINT_DYN_CTL0
,
3603 I40E_ITR_NONE
<< I40E_PFINT_DYN_CTLN_ITR_INDX_SHIFT
);
3608 * i40e_irq_dynamic_enable_icr0 - Enable default interrupt generation for icr0
3609 * @pf: board private structure
3611 void i40e_irq_dynamic_enable_icr0(struct i40e_pf
*pf
)
3613 struct i40e_hw
*hw
= &pf
->hw
;
3616 val
= I40E_PFINT_DYN_CTL0_INTENA_MASK
|
3617 I40E_PFINT_DYN_CTL0_CLEARPBA_MASK
|
3618 (I40E_ITR_NONE
<< I40E_PFINT_DYN_CTL0_ITR_INDX_SHIFT
);
3620 wr32(hw
, I40E_PFINT_DYN_CTL0
, val
);
3625 * i40e_msix_clean_rings - MSIX mode Interrupt Handler
3626 * @irq: interrupt number
3627 * @data: pointer to a q_vector
3629 static irqreturn_t
i40e_msix_clean_rings(int irq
, void *data
)
3631 struct i40e_q_vector
*q_vector
= data
;
3633 if (!q_vector
->tx
.ring
&& !q_vector
->rx
.ring
)
3636 napi_schedule_irqoff(&q_vector
->napi
);
3642 * i40e_irq_affinity_notify - Callback for affinity changes
3643 * @notify: context as to what irq was changed
3644 * @mask: the new affinity mask
3646 * This is a callback function used by the irq_set_affinity_notifier function
3647 * so that we may register to receive changes to the irq affinity masks.
3649 static void i40e_irq_affinity_notify(struct irq_affinity_notify
*notify
,
3650 const cpumask_t
*mask
)
3652 struct i40e_q_vector
*q_vector
=
3653 container_of(notify
, struct i40e_q_vector
, affinity_notify
);
3655 cpumask_copy(&q_vector
->affinity_mask
, mask
);
3659 * i40e_irq_affinity_release - Callback for affinity notifier release
3660 * @ref: internal core kernel usage
3662 * This is a callback function used by the irq_set_affinity_notifier function
3663 * to inform the current notification subscriber that they will no longer
3664 * receive notifications.
3666 static void i40e_irq_affinity_release(struct kref
*ref
) {}
3669 * i40e_vsi_request_irq_msix - Initialize MSI-X interrupts
3670 * @vsi: the VSI being configured
3671 * @basename: name for the vector
3673 * Allocates MSI-X vectors and requests interrupts from the kernel.
3675 static int i40e_vsi_request_irq_msix(struct i40e_vsi
*vsi
, char *basename
)
3677 int q_vectors
= vsi
->num_q_vectors
;
3678 struct i40e_pf
*pf
= vsi
->back
;
3679 int base
= vsi
->base_vector
;
3686 for (vector
= 0; vector
< q_vectors
; vector
++) {
3687 struct i40e_q_vector
*q_vector
= vsi
->q_vectors
[vector
];
3689 irq_num
= pf
->msix_entries
[base
+ vector
].vector
;
3691 if (q_vector
->tx
.ring
&& q_vector
->rx
.ring
) {
3692 snprintf(q_vector
->name
, sizeof(q_vector
->name
) - 1,
3693 "%s-%s-%d", basename
, "TxRx", rx_int_idx
++);
3695 } else if (q_vector
->rx
.ring
) {
3696 snprintf(q_vector
->name
, sizeof(q_vector
->name
) - 1,
3697 "%s-%s-%d", basename
, "rx", rx_int_idx
++);
3698 } else if (q_vector
->tx
.ring
) {
3699 snprintf(q_vector
->name
, sizeof(q_vector
->name
) - 1,
3700 "%s-%s-%d", basename
, "tx", tx_int_idx
++);
3702 /* skip this unused q_vector */
3705 err
= request_irq(irq_num
,
3711 dev_info(&pf
->pdev
->dev
,
3712 "MSIX request_irq failed, error: %d\n", err
);
3713 goto free_queue_irqs
;
3716 /* register for affinity change notifications */
3717 q_vector
->affinity_notify
.notify
= i40e_irq_affinity_notify
;
3718 q_vector
->affinity_notify
.release
= i40e_irq_affinity_release
;
3719 irq_set_affinity_notifier(irq_num
, &q_vector
->affinity_notify
);
3720 /* Spread affinity hints out across online CPUs.
3722 * get_cpu_mask returns a static constant mask with
3723 * a permanent lifetime so it's ok to pass to
3724 * irq_set_affinity_hint without making a copy.
3726 cpu
= cpumask_local_spread(q_vector
->v_idx
, -1);
3727 irq_set_affinity_hint(irq_num
, get_cpu_mask(cpu
));
3730 vsi
->irqs_ready
= true;
3736 irq_num
= pf
->msix_entries
[base
+ vector
].vector
;
3737 irq_set_affinity_notifier(irq_num
, NULL
);
3738 irq_set_affinity_hint(irq_num
, NULL
);
3739 free_irq(irq_num
, &vsi
->q_vectors
[vector
]);
3745 * i40e_vsi_disable_irq - Mask off queue interrupt generation on the VSI
3746 * @vsi: the VSI being un-configured
3748 static void i40e_vsi_disable_irq(struct i40e_vsi
*vsi
)
3750 struct i40e_pf
*pf
= vsi
->back
;
3751 struct i40e_hw
*hw
= &pf
->hw
;
3752 int base
= vsi
->base_vector
;
3755 /* disable interrupt causation from each queue */
3756 for (i
= 0; i
< vsi
->num_queue_pairs
; i
++) {
3759 val
= rd32(hw
, I40E_QINT_TQCTL(vsi
->tx_rings
[i
]->reg_idx
));
3760 val
&= ~I40E_QINT_TQCTL_CAUSE_ENA_MASK
;
3761 wr32(hw
, I40E_QINT_TQCTL(vsi
->tx_rings
[i
]->reg_idx
), val
);
3763 val
= rd32(hw
, I40E_QINT_RQCTL(vsi
->rx_rings
[i
]->reg_idx
));
3764 val
&= ~I40E_QINT_RQCTL_CAUSE_ENA_MASK
;
3765 wr32(hw
, I40E_QINT_RQCTL(vsi
->rx_rings
[i
]->reg_idx
), val
);
3767 if (!i40e_enabled_xdp_vsi(vsi
))
3769 wr32(hw
, I40E_QINT_TQCTL(vsi
->xdp_rings
[i
]->reg_idx
), 0);
3772 /* disable each interrupt */
3773 if (pf
->flags
& I40E_FLAG_MSIX_ENABLED
) {
3774 for (i
= vsi
->base_vector
;
3775 i
< (vsi
->num_q_vectors
+ vsi
->base_vector
); i
++)
3776 wr32(hw
, I40E_PFINT_DYN_CTLN(i
- 1), 0);
3779 for (i
= 0; i
< vsi
->num_q_vectors
; i
++)
3780 synchronize_irq(pf
->msix_entries
[i
+ base
].vector
);
3782 /* Legacy and MSI mode - this stops all interrupt handling */
3783 wr32(hw
, I40E_PFINT_ICR0_ENA
, 0);
3784 wr32(hw
, I40E_PFINT_DYN_CTL0
, 0);
3786 synchronize_irq(pf
->pdev
->irq
);
3791 * i40e_vsi_enable_irq - Enable IRQ for the given VSI
3792 * @vsi: the VSI being configured
3794 static int i40e_vsi_enable_irq(struct i40e_vsi
*vsi
)
3796 struct i40e_pf
*pf
= vsi
->back
;
3799 if (pf
->flags
& I40E_FLAG_MSIX_ENABLED
) {
3800 for (i
= 0; i
< vsi
->num_q_vectors
; i
++)
3801 i40e_irq_dynamic_enable(vsi
, i
);
3803 i40e_irq_dynamic_enable_icr0(pf
);
3806 i40e_flush(&pf
->hw
);
3811 * i40e_free_misc_vector - Free the vector that handles non-queue events
3812 * @pf: board private structure
3814 static void i40e_free_misc_vector(struct i40e_pf
*pf
)
3817 wr32(&pf
->hw
, I40E_PFINT_ICR0_ENA
, 0);
3818 i40e_flush(&pf
->hw
);
3820 if (pf
->flags
& I40E_FLAG_MSIX_ENABLED
&& pf
->msix_entries
) {
3821 synchronize_irq(pf
->msix_entries
[0].vector
);
3822 free_irq(pf
->msix_entries
[0].vector
, pf
);
3823 clear_bit(__I40E_MISC_IRQ_REQUESTED
, pf
->state
);
3828 * i40e_intr - MSI/Legacy and non-queue interrupt handler
3829 * @irq: interrupt number
3830 * @data: pointer to a q_vector
3832 * This is the handler used for all MSI/Legacy interrupts, and deals
3833 * with both queue and non-queue interrupts. This is also used in
3834 * MSIX mode to handle the non-queue interrupts.
3836 static irqreturn_t
i40e_intr(int irq
, void *data
)
3838 struct i40e_pf
*pf
= (struct i40e_pf
*)data
;
3839 struct i40e_hw
*hw
= &pf
->hw
;
3840 irqreturn_t ret
= IRQ_NONE
;
3841 u32 icr0
, icr0_remaining
;
3844 icr0
= rd32(hw
, I40E_PFINT_ICR0
);
3845 ena_mask
= rd32(hw
, I40E_PFINT_ICR0_ENA
);
3847 /* if sharing a legacy IRQ, we might get called w/o an intr pending */
3848 if ((icr0
& I40E_PFINT_ICR0_INTEVENT_MASK
) == 0)
3851 /* if interrupt but no bits showing, must be SWINT */
3852 if (((icr0
& ~I40E_PFINT_ICR0_INTEVENT_MASK
) == 0) ||
3853 (icr0
& I40E_PFINT_ICR0_SWINT_MASK
))
3856 if ((pf
->flags
& I40E_FLAG_IWARP_ENABLED
) &&
3857 (icr0
& I40E_PFINT_ICR0_ENA_PE_CRITERR_MASK
)) {
3858 ena_mask
&= ~I40E_PFINT_ICR0_ENA_PE_CRITERR_MASK
;
3859 dev_dbg(&pf
->pdev
->dev
, "cleared PE_CRITERR\n");
3860 set_bit(__I40E_CORE_RESET_REQUESTED
, pf
->state
);
3863 /* only q0 is used in MSI/Legacy mode, and none are used in MSIX */
3864 if (icr0
& I40E_PFINT_ICR0_QUEUE_0_MASK
) {
3865 struct i40e_vsi
*vsi
= pf
->vsi
[pf
->lan_vsi
];
3866 struct i40e_q_vector
*q_vector
= vsi
->q_vectors
[0];
3868 /* We do not have a way to disarm Queue causes while leaving
3869 * interrupt enabled for all other causes, ideally
3870 * interrupt should be disabled while we are in NAPI but
3871 * this is not a performance path and napi_schedule()
3872 * can deal with rescheduling.
3874 if (!test_bit(__I40E_DOWN
, pf
->state
))
3875 napi_schedule_irqoff(&q_vector
->napi
);
3878 if (icr0
& I40E_PFINT_ICR0_ADMINQ_MASK
) {
3879 ena_mask
&= ~I40E_PFINT_ICR0_ENA_ADMINQ_MASK
;
3880 set_bit(__I40E_ADMINQ_EVENT_PENDING
, pf
->state
);
3881 i40e_debug(&pf
->hw
, I40E_DEBUG_NVM
, "AdminQ event\n");
3884 if (icr0
& I40E_PFINT_ICR0_MAL_DETECT_MASK
) {
3885 ena_mask
&= ~I40E_PFINT_ICR0_ENA_MAL_DETECT_MASK
;
3886 set_bit(__I40E_MDD_EVENT_PENDING
, pf
->state
);
3889 if (icr0
& I40E_PFINT_ICR0_VFLR_MASK
) {
3890 ena_mask
&= ~I40E_PFINT_ICR0_ENA_VFLR_MASK
;
3891 set_bit(__I40E_VFLR_EVENT_PENDING
, pf
->state
);
3894 if (icr0
& I40E_PFINT_ICR0_GRST_MASK
) {
3895 if (!test_bit(__I40E_RESET_RECOVERY_PENDING
, pf
->state
))
3896 set_bit(__I40E_RESET_INTR_RECEIVED
, pf
->state
);
3897 ena_mask
&= ~I40E_PFINT_ICR0_ENA_GRST_MASK
;
3898 val
= rd32(hw
, I40E_GLGEN_RSTAT
);
3899 val
= (val
& I40E_GLGEN_RSTAT_RESET_TYPE_MASK
)
3900 >> I40E_GLGEN_RSTAT_RESET_TYPE_SHIFT
;
3901 if (val
== I40E_RESET_CORER
) {
3903 } else if (val
== I40E_RESET_GLOBR
) {
3905 } else if (val
== I40E_RESET_EMPR
) {
3907 set_bit(__I40E_EMP_RESET_INTR_RECEIVED
, pf
->state
);
3911 if (icr0
& I40E_PFINT_ICR0_HMC_ERR_MASK
) {
3912 icr0
&= ~I40E_PFINT_ICR0_HMC_ERR_MASK
;
3913 dev_info(&pf
->pdev
->dev
, "HMC error interrupt\n");
3914 dev_info(&pf
->pdev
->dev
, "HMC error info 0x%x, HMC error data 0x%x\n",
3915 rd32(hw
, I40E_PFHMC_ERRORINFO
),
3916 rd32(hw
, I40E_PFHMC_ERRORDATA
));
3919 if (icr0
& I40E_PFINT_ICR0_TIMESYNC_MASK
) {
3920 u32 prttsyn_stat
= rd32(hw
, I40E_PRTTSYN_STAT_0
);
3922 if (prttsyn_stat
& I40E_PRTTSYN_STAT_0_TXTIME_MASK
) {
3923 icr0
&= ~I40E_PFINT_ICR0_ENA_TIMESYNC_MASK
;
3924 i40e_ptp_tx_hwtstamp(pf
);
3928 /* If a critical error is pending we have no choice but to reset the
3930 * Report and mask out any remaining unexpected interrupts.
3932 icr0_remaining
= icr0
& ena_mask
;
3933 if (icr0_remaining
) {
3934 dev_info(&pf
->pdev
->dev
, "unhandled interrupt icr0=0x%08x\n",
3936 if ((icr0_remaining
& I40E_PFINT_ICR0_PE_CRITERR_MASK
) ||
3937 (icr0_remaining
& I40E_PFINT_ICR0_PCI_EXCEPTION_MASK
) ||
3938 (icr0_remaining
& I40E_PFINT_ICR0_ECC_ERR_MASK
)) {
3939 dev_info(&pf
->pdev
->dev
, "device will be reset\n");
3940 set_bit(__I40E_PF_RESET_REQUESTED
, pf
->state
);
3941 i40e_service_event_schedule(pf
);
3943 ena_mask
&= ~icr0_remaining
;
3948 /* re-enable interrupt causes */
3949 wr32(hw
, I40E_PFINT_ICR0_ENA
, ena_mask
);
3950 if (!test_bit(__I40E_DOWN
, pf
->state
)) {
3951 i40e_service_event_schedule(pf
);
3952 i40e_irq_dynamic_enable_icr0(pf
);
3959 * i40e_clean_fdir_tx_irq - Reclaim resources after transmit completes
3960 * @tx_ring: tx ring to clean
3961 * @budget: how many cleans we're allowed
3963 * Returns true if there's any budget left (e.g. the clean is finished)
3965 static bool i40e_clean_fdir_tx_irq(struct i40e_ring
*tx_ring
, int budget
)
3967 struct i40e_vsi
*vsi
= tx_ring
->vsi
;
3968 u16 i
= tx_ring
->next_to_clean
;
3969 struct i40e_tx_buffer
*tx_buf
;
3970 struct i40e_tx_desc
*tx_desc
;
3972 tx_buf
= &tx_ring
->tx_bi
[i
];
3973 tx_desc
= I40E_TX_DESC(tx_ring
, i
);
3974 i
-= tx_ring
->count
;
3977 struct i40e_tx_desc
*eop_desc
= tx_buf
->next_to_watch
;
3979 /* if next_to_watch is not set then there is no work pending */
3983 /* prevent any other reads prior to eop_desc */
3986 /* if the descriptor isn't done, no work yet to do */
3987 if (!(eop_desc
->cmd_type_offset_bsz
&
3988 cpu_to_le64(I40E_TX_DESC_DTYPE_DESC_DONE
)))
3991 /* clear next_to_watch to prevent false hangs */
3992 tx_buf
->next_to_watch
= NULL
;
3994 tx_desc
->buffer_addr
= 0;
3995 tx_desc
->cmd_type_offset_bsz
= 0;
3996 /* move past filter desc */
4001 i
-= tx_ring
->count
;
4002 tx_buf
= tx_ring
->tx_bi
;
4003 tx_desc
= I40E_TX_DESC(tx_ring
, 0);
4005 /* unmap skb header data */
4006 dma_unmap_single(tx_ring
->dev
,
4007 dma_unmap_addr(tx_buf
, dma
),
4008 dma_unmap_len(tx_buf
, len
),
4010 if (tx_buf
->tx_flags
& I40E_TX_FLAGS_FD_SB
)
4011 kfree(tx_buf
->raw_buf
);
4013 tx_buf
->raw_buf
= NULL
;
4014 tx_buf
->tx_flags
= 0;
4015 tx_buf
->next_to_watch
= NULL
;
4016 dma_unmap_len_set(tx_buf
, len
, 0);
4017 tx_desc
->buffer_addr
= 0;
4018 tx_desc
->cmd_type_offset_bsz
= 0;
4020 /* move us past the eop_desc for start of next FD desc */
4025 i
-= tx_ring
->count
;
4026 tx_buf
= tx_ring
->tx_bi
;
4027 tx_desc
= I40E_TX_DESC(tx_ring
, 0);
4030 /* update budget accounting */
4032 } while (likely(budget
));
4034 i
+= tx_ring
->count
;
4035 tx_ring
->next_to_clean
= i
;
4037 if (vsi
->back
->flags
& I40E_FLAG_MSIX_ENABLED
)
4038 i40e_irq_dynamic_enable(vsi
, tx_ring
->q_vector
->v_idx
);
4044 * i40e_fdir_clean_ring - Interrupt Handler for FDIR SB ring
4045 * @irq: interrupt number
4046 * @data: pointer to a q_vector
4048 static irqreturn_t
i40e_fdir_clean_ring(int irq
, void *data
)
4050 struct i40e_q_vector
*q_vector
= data
;
4051 struct i40e_vsi
*vsi
;
4053 if (!q_vector
->tx
.ring
)
4056 vsi
= q_vector
->tx
.ring
->vsi
;
4057 i40e_clean_fdir_tx_irq(q_vector
->tx
.ring
, vsi
->work_limit
);
4063 * i40e_map_vector_to_qp - Assigns the queue pair to the vector
4064 * @vsi: the VSI being configured
4065 * @v_idx: vector index
4066 * @qp_idx: queue pair index
4068 static void i40e_map_vector_to_qp(struct i40e_vsi
*vsi
, int v_idx
, int qp_idx
)
4070 struct i40e_q_vector
*q_vector
= vsi
->q_vectors
[v_idx
];
4071 struct i40e_ring
*tx_ring
= vsi
->tx_rings
[qp_idx
];
4072 struct i40e_ring
*rx_ring
= vsi
->rx_rings
[qp_idx
];
4074 tx_ring
->q_vector
= q_vector
;
4075 tx_ring
->next
= q_vector
->tx
.ring
;
4076 q_vector
->tx
.ring
= tx_ring
;
4077 q_vector
->tx
.count
++;
4079 /* Place XDP Tx ring in the same q_vector ring list as regular Tx */
4080 if (i40e_enabled_xdp_vsi(vsi
)) {
4081 struct i40e_ring
*xdp_ring
= vsi
->xdp_rings
[qp_idx
];
4083 xdp_ring
->q_vector
= q_vector
;
4084 xdp_ring
->next
= q_vector
->tx
.ring
;
4085 q_vector
->tx
.ring
= xdp_ring
;
4086 q_vector
->tx
.count
++;
4089 rx_ring
->q_vector
= q_vector
;
4090 rx_ring
->next
= q_vector
->rx
.ring
;
4091 q_vector
->rx
.ring
= rx_ring
;
4092 q_vector
->rx
.count
++;
4096 * i40e_vsi_map_rings_to_vectors - Maps descriptor rings to vectors
4097 * @vsi: the VSI being configured
4099 * This function maps descriptor rings to the queue-specific vectors
4100 * we were allotted through the MSI-X enabling code. Ideally, we'd have
4101 * one vector per queue pair, but on a constrained vector budget, we
4102 * group the queue pairs as "efficiently" as possible.
4104 static void i40e_vsi_map_rings_to_vectors(struct i40e_vsi
*vsi
)
4106 int qp_remaining
= vsi
->num_queue_pairs
;
4107 int q_vectors
= vsi
->num_q_vectors
;
4112 /* If we don't have enough vectors for a 1-to-1 mapping, we'll have to
4113 * group them so there are multiple queues per vector.
4114 * It is also important to go through all the vectors available to be
4115 * sure that if we don't use all the vectors, that the remaining vectors
4116 * are cleared. This is especially important when decreasing the
4117 * number of queues in use.
4119 for (; v_start
< q_vectors
; v_start
++) {
4120 struct i40e_q_vector
*q_vector
= vsi
->q_vectors
[v_start
];
4122 num_ringpairs
= DIV_ROUND_UP(qp_remaining
, q_vectors
- v_start
);
4124 q_vector
->num_ringpairs
= num_ringpairs
;
4126 q_vector
->rx
.count
= 0;
4127 q_vector
->tx
.count
= 0;
4128 q_vector
->rx
.ring
= NULL
;
4129 q_vector
->tx
.ring
= NULL
;
4131 while (num_ringpairs
--) {
4132 i40e_map_vector_to_qp(vsi
, v_start
, qp_idx
);
4140 * i40e_vsi_request_irq - Request IRQ from the OS
4141 * @vsi: the VSI being configured
4142 * @basename: name for the vector
4144 static int i40e_vsi_request_irq(struct i40e_vsi
*vsi
, char *basename
)
4146 struct i40e_pf
*pf
= vsi
->back
;
4149 if (pf
->flags
& I40E_FLAG_MSIX_ENABLED
)
4150 err
= i40e_vsi_request_irq_msix(vsi
, basename
);
4151 else if (pf
->flags
& I40E_FLAG_MSI_ENABLED
)
4152 err
= request_irq(pf
->pdev
->irq
, i40e_intr
, 0,
4155 err
= request_irq(pf
->pdev
->irq
, i40e_intr
, IRQF_SHARED
,
4159 dev_info(&pf
->pdev
->dev
, "request_irq failed, Error %d\n", err
);
4164 #ifdef CONFIG_NET_POLL_CONTROLLER
4166 * i40e_netpoll - A Polling 'interrupt' handler
4167 * @netdev: network interface device structure
4169 * This is used by netconsole to send skbs without having to re-enable
4170 * interrupts. It's not called while the normal interrupt routine is executing.
4172 static void i40e_netpoll(struct net_device
*netdev
)
4174 struct i40e_netdev_priv
*np
= netdev_priv(netdev
);
4175 struct i40e_vsi
*vsi
= np
->vsi
;
4176 struct i40e_pf
*pf
= vsi
->back
;
4179 /* if interface is down do nothing */
4180 if (test_bit(__I40E_VSI_DOWN
, vsi
->state
))
4183 if (pf
->flags
& I40E_FLAG_MSIX_ENABLED
) {
4184 for (i
= 0; i
< vsi
->num_q_vectors
; i
++)
4185 i40e_msix_clean_rings(0, vsi
->q_vectors
[i
]);
4187 i40e_intr(pf
->pdev
->irq
, netdev
);
4192 #define I40E_QTX_ENA_WAIT_COUNT 50
4195 * i40e_pf_txq_wait - Wait for a PF's Tx queue to be enabled or disabled
4196 * @pf: the PF being configured
4197 * @pf_q: the PF queue
4198 * @enable: enable or disable state of the queue
4200 * This routine will wait for the given Tx queue of the PF to reach the
4201 * enabled or disabled state.
4202 * Returns -ETIMEDOUT in case of failing to reach the requested state after
4203 * multiple retries; else will return 0 in case of success.
4205 static int i40e_pf_txq_wait(struct i40e_pf
*pf
, int pf_q
, bool enable
)
4210 for (i
= 0; i
< I40E_QUEUE_WAIT_RETRY_LIMIT
; i
++) {
4211 tx_reg
= rd32(&pf
->hw
, I40E_QTX_ENA(pf_q
));
4212 if (enable
== !!(tx_reg
& I40E_QTX_ENA_QENA_STAT_MASK
))
4215 usleep_range(10, 20);
4217 if (i
>= I40E_QUEUE_WAIT_RETRY_LIMIT
)
4224 * i40e_control_tx_q - Start or stop a particular Tx queue
4225 * @pf: the PF structure
4226 * @pf_q: the PF queue to configure
4227 * @enable: start or stop the queue
4229 * This function enables or disables a single queue. Note that any delay
4230 * required after the operation is expected to be handled by the caller of
4233 static void i40e_control_tx_q(struct i40e_pf
*pf
, int pf_q
, bool enable
)
4235 struct i40e_hw
*hw
= &pf
->hw
;
4239 /* warn the TX unit of coming changes */
4240 i40e_pre_tx_queue_cfg(&pf
->hw
, pf_q
, enable
);
4242 usleep_range(10, 20);
4244 for (i
= 0; i
< I40E_QTX_ENA_WAIT_COUNT
; i
++) {
4245 tx_reg
= rd32(hw
, I40E_QTX_ENA(pf_q
));
4246 if (((tx_reg
>> I40E_QTX_ENA_QENA_REQ_SHIFT
) & 1) ==
4247 ((tx_reg
>> I40E_QTX_ENA_QENA_STAT_SHIFT
) & 1))
4249 usleep_range(1000, 2000);
4252 /* Skip if the queue is already in the requested state */
4253 if (enable
== !!(tx_reg
& I40E_QTX_ENA_QENA_STAT_MASK
))
4256 /* turn on/off the queue */
4258 wr32(hw
, I40E_QTX_HEAD(pf_q
), 0);
4259 tx_reg
|= I40E_QTX_ENA_QENA_REQ_MASK
;
4261 tx_reg
&= ~I40E_QTX_ENA_QENA_REQ_MASK
;
4264 wr32(hw
, I40E_QTX_ENA(pf_q
), tx_reg
);
4268 * i40e_control_wait_tx_q - Start/stop Tx queue and wait for completion
4270 * @pf: the PF structure
4271 * @pf_q: the PF queue to configure
4272 * @is_xdp: true if the queue is used for XDP
4273 * @enable: start or stop the queue
4275 static int i40e_control_wait_tx_q(int seid
, struct i40e_pf
*pf
, int pf_q
,
4276 bool is_xdp
, bool enable
)
4280 i40e_control_tx_q(pf
, pf_q
, enable
);
4282 /* wait for the change to finish */
4283 ret
= i40e_pf_txq_wait(pf
, pf_q
, enable
);
4285 dev_info(&pf
->pdev
->dev
,
4286 "VSI seid %d %sTx ring %d %sable timeout\n",
4287 seid
, (is_xdp
? "XDP " : ""), pf_q
,
4288 (enable
? "en" : "dis"));
4295 * i40e_vsi_control_tx - Start or stop a VSI's rings
4296 * @vsi: the VSI being configured
4297 * @enable: start or stop the rings
4299 static int i40e_vsi_control_tx(struct i40e_vsi
*vsi
, bool enable
)
4301 struct i40e_pf
*pf
= vsi
->back
;
4302 int i
, pf_q
, ret
= 0;
4304 pf_q
= vsi
->base_queue
;
4305 for (i
= 0; i
< vsi
->num_queue_pairs
; i
++, pf_q
++) {
4306 ret
= i40e_control_wait_tx_q(vsi
->seid
, pf
,
4308 false /*is xdp*/, enable
);
4312 if (!i40e_enabled_xdp_vsi(vsi
))
4315 ret
= i40e_control_wait_tx_q(vsi
->seid
, pf
,
4316 pf_q
+ vsi
->alloc_queue_pairs
,
4317 true /*is xdp*/, enable
);
4326 * i40e_pf_rxq_wait - Wait for a PF's Rx queue to be enabled or disabled
4327 * @pf: the PF being configured
4328 * @pf_q: the PF queue
4329 * @enable: enable or disable state of the queue
4331 * This routine will wait for the given Rx queue of the PF to reach the
4332 * enabled or disabled state.
4333 * Returns -ETIMEDOUT in case of failing to reach the requested state after
4334 * multiple retries; else will return 0 in case of success.
4336 static int i40e_pf_rxq_wait(struct i40e_pf
*pf
, int pf_q
, bool enable
)
4341 for (i
= 0; i
< I40E_QUEUE_WAIT_RETRY_LIMIT
; i
++) {
4342 rx_reg
= rd32(&pf
->hw
, I40E_QRX_ENA(pf_q
));
4343 if (enable
== !!(rx_reg
& I40E_QRX_ENA_QENA_STAT_MASK
))
4346 usleep_range(10, 20);
4348 if (i
>= I40E_QUEUE_WAIT_RETRY_LIMIT
)
4355 * i40e_control_rx_q - Start or stop a particular Rx queue
4356 * @pf: the PF structure
4357 * @pf_q: the PF queue to configure
4358 * @enable: start or stop the queue
4360 * This function enables or disables a single queue. Note that any delay
4361 * required after the operation is expected to be handled by the caller of
4364 static void i40e_control_rx_q(struct i40e_pf
*pf
, int pf_q
, bool enable
)
4366 struct i40e_hw
*hw
= &pf
->hw
;
4370 for (i
= 0; i
< I40E_QTX_ENA_WAIT_COUNT
; i
++) {
4371 rx_reg
= rd32(hw
, I40E_QRX_ENA(pf_q
));
4372 if (((rx_reg
>> I40E_QRX_ENA_QENA_REQ_SHIFT
) & 1) ==
4373 ((rx_reg
>> I40E_QRX_ENA_QENA_STAT_SHIFT
) & 1))
4375 usleep_range(1000, 2000);
4378 /* Skip if the queue is already in the requested state */
4379 if (enable
== !!(rx_reg
& I40E_QRX_ENA_QENA_STAT_MASK
))
4382 /* turn on/off the queue */
4384 rx_reg
|= I40E_QRX_ENA_QENA_REQ_MASK
;
4386 rx_reg
&= ~I40E_QRX_ENA_QENA_REQ_MASK
;
4388 wr32(hw
, I40E_QRX_ENA(pf_q
), rx_reg
);
4392 * i40e_vsi_control_rx - Start or stop a VSI's rings
4393 * @vsi: the VSI being configured
4394 * @enable: start or stop the rings
4396 static int i40e_vsi_control_rx(struct i40e_vsi
*vsi
, bool enable
)
4398 struct i40e_pf
*pf
= vsi
->back
;
4399 int i
, pf_q
, ret
= 0;
4401 pf_q
= vsi
->base_queue
;
4402 for (i
= 0; i
< vsi
->num_queue_pairs
; i
++, pf_q
++) {
4403 i40e_control_rx_q(pf
, pf_q
, enable
);
4405 /* wait for the change to finish */
4406 ret
= i40e_pf_rxq_wait(pf
, pf_q
, enable
);
4408 dev_info(&pf
->pdev
->dev
,
4409 "VSI seid %d Rx ring %d %sable timeout\n",
4410 vsi
->seid
, pf_q
, (enable
? "en" : "dis"));
4415 /* Due to HW errata, on Rx disable only, the register can indicate done
4416 * before it really is. Needs 50ms to be sure
4425 * i40e_vsi_start_rings - Start a VSI's rings
4426 * @vsi: the VSI being configured
4428 int i40e_vsi_start_rings(struct i40e_vsi
*vsi
)
4432 /* do rx first for enable and last for disable */
4433 ret
= i40e_vsi_control_rx(vsi
, true);
4436 ret
= i40e_vsi_control_tx(vsi
, true);
4442 * i40e_vsi_stop_rings - Stop a VSI's rings
4443 * @vsi: the VSI being configured
4445 void i40e_vsi_stop_rings(struct i40e_vsi
*vsi
)
4447 /* When port TX is suspended, don't wait */
4448 if (test_bit(__I40E_PORT_SUSPENDED
, vsi
->back
->state
))
4449 return i40e_vsi_stop_rings_no_wait(vsi
);
4451 /* do rx first for enable and last for disable
4452 * Ignore return value, we need to shutdown whatever we can
4454 i40e_vsi_control_tx(vsi
, false);
4455 i40e_vsi_control_rx(vsi
, false);
4459 * i40e_vsi_stop_rings_no_wait - Stop a VSI's rings and do not delay
4460 * @vsi: the VSI being shutdown
4462 * This function stops all the rings for a VSI but does not delay to verify
4463 * that rings have been disabled. It is expected that the caller is shutting
4464 * down multiple VSIs at once and will delay together for all the VSIs after
4465 * initiating the shutdown. This is particularly useful for shutting down lots
4466 * of VFs together. Otherwise, a large delay can be incurred while configuring
4467 * each VSI in serial.
4469 void i40e_vsi_stop_rings_no_wait(struct i40e_vsi
*vsi
)
4471 struct i40e_pf
*pf
= vsi
->back
;
4474 pf_q
= vsi
->base_queue
;
4475 for (i
= 0; i
< vsi
->num_queue_pairs
; i
++, pf_q
++) {
4476 i40e_control_tx_q(pf
, pf_q
, false);
4477 i40e_control_rx_q(pf
, pf_q
, false);
4482 * i40e_vsi_free_irq - Free the irq association with the OS
4483 * @vsi: the VSI being configured
4485 static void i40e_vsi_free_irq(struct i40e_vsi
*vsi
)
4487 struct i40e_pf
*pf
= vsi
->back
;
4488 struct i40e_hw
*hw
= &pf
->hw
;
4489 int base
= vsi
->base_vector
;
4493 if (pf
->flags
& I40E_FLAG_MSIX_ENABLED
) {
4494 if (!vsi
->q_vectors
)
4497 if (!vsi
->irqs_ready
)
4500 vsi
->irqs_ready
= false;
4501 for (i
= 0; i
< vsi
->num_q_vectors
; i
++) {
4506 irq_num
= pf
->msix_entries
[vector
].vector
;
4508 /* free only the irqs that were actually requested */
4509 if (!vsi
->q_vectors
[i
] ||
4510 !vsi
->q_vectors
[i
]->num_ringpairs
)
4513 /* clear the affinity notifier in the IRQ descriptor */
4514 irq_set_affinity_notifier(irq_num
, NULL
);
4515 /* remove our suggested affinity mask for this IRQ */
4516 irq_set_affinity_hint(irq_num
, NULL
);
4517 synchronize_irq(irq_num
);
4518 free_irq(irq_num
, vsi
->q_vectors
[i
]);
4520 /* Tear down the interrupt queue link list
4522 * We know that they come in pairs and always
4523 * the Rx first, then the Tx. To clear the
4524 * link list, stick the EOL value into the
4525 * next_q field of the registers.
4527 val
= rd32(hw
, I40E_PFINT_LNKLSTN(vector
- 1));
4528 qp
= (val
& I40E_PFINT_LNKLSTN_FIRSTQ_INDX_MASK
)
4529 >> I40E_PFINT_LNKLSTN_FIRSTQ_INDX_SHIFT
;
4530 val
|= I40E_QUEUE_END_OF_LIST
4531 << I40E_PFINT_LNKLSTN_FIRSTQ_INDX_SHIFT
;
4532 wr32(hw
, I40E_PFINT_LNKLSTN(vector
- 1), val
);
4534 while (qp
!= I40E_QUEUE_END_OF_LIST
) {
4537 val
= rd32(hw
, I40E_QINT_RQCTL(qp
));
4539 val
&= ~(I40E_QINT_RQCTL_MSIX_INDX_MASK
|
4540 I40E_QINT_RQCTL_MSIX0_INDX_MASK
|
4541 I40E_QINT_RQCTL_CAUSE_ENA_MASK
|
4542 I40E_QINT_RQCTL_INTEVENT_MASK
);
4544 val
|= (I40E_QINT_RQCTL_ITR_INDX_MASK
|
4545 I40E_QINT_RQCTL_NEXTQ_INDX_MASK
);
4547 wr32(hw
, I40E_QINT_RQCTL(qp
), val
);
4549 val
= rd32(hw
, I40E_QINT_TQCTL(qp
));
4551 next
= (val
& I40E_QINT_TQCTL_NEXTQ_INDX_MASK
)
4552 >> I40E_QINT_TQCTL_NEXTQ_INDX_SHIFT
;
4554 val
&= ~(I40E_QINT_TQCTL_MSIX_INDX_MASK
|
4555 I40E_QINT_TQCTL_MSIX0_INDX_MASK
|
4556 I40E_QINT_TQCTL_CAUSE_ENA_MASK
|
4557 I40E_QINT_TQCTL_INTEVENT_MASK
);
4559 val
|= (I40E_QINT_TQCTL_ITR_INDX_MASK
|
4560 I40E_QINT_TQCTL_NEXTQ_INDX_MASK
);
4562 wr32(hw
, I40E_QINT_TQCTL(qp
), val
);
4567 free_irq(pf
->pdev
->irq
, pf
);
4569 val
= rd32(hw
, I40E_PFINT_LNKLST0
);
4570 qp
= (val
& I40E_PFINT_LNKLSTN_FIRSTQ_INDX_MASK
)
4571 >> I40E_PFINT_LNKLSTN_FIRSTQ_INDX_SHIFT
;
4572 val
|= I40E_QUEUE_END_OF_LIST
4573 << I40E_PFINT_LNKLST0_FIRSTQ_INDX_SHIFT
;
4574 wr32(hw
, I40E_PFINT_LNKLST0
, val
);
4576 val
= rd32(hw
, I40E_QINT_RQCTL(qp
));
4577 val
&= ~(I40E_QINT_RQCTL_MSIX_INDX_MASK
|
4578 I40E_QINT_RQCTL_MSIX0_INDX_MASK
|
4579 I40E_QINT_RQCTL_CAUSE_ENA_MASK
|
4580 I40E_QINT_RQCTL_INTEVENT_MASK
);
4582 val
|= (I40E_QINT_RQCTL_ITR_INDX_MASK
|
4583 I40E_QINT_RQCTL_NEXTQ_INDX_MASK
);
4585 wr32(hw
, I40E_QINT_RQCTL(qp
), val
);
4587 val
= rd32(hw
, I40E_QINT_TQCTL(qp
));
4589 val
&= ~(I40E_QINT_TQCTL_MSIX_INDX_MASK
|
4590 I40E_QINT_TQCTL_MSIX0_INDX_MASK
|
4591 I40E_QINT_TQCTL_CAUSE_ENA_MASK
|
4592 I40E_QINT_TQCTL_INTEVENT_MASK
);
4594 val
|= (I40E_QINT_TQCTL_ITR_INDX_MASK
|
4595 I40E_QINT_TQCTL_NEXTQ_INDX_MASK
);
4597 wr32(hw
, I40E_QINT_TQCTL(qp
), val
);
4602 * i40e_free_q_vector - Free memory allocated for specific interrupt vector
4603 * @vsi: the VSI being configured
4604 * @v_idx: Index of vector to be freed
4606 * This function frees the memory allocated to the q_vector. In addition if
4607 * NAPI is enabled it will delete any references to the NAPI struct prior
4608 * to freeing the q_vector.
4610 static void i40e_free_q_vector(struct i40e_vsi
*vsi
, int v_idx
)
4612 struct i40e_q_vector
*q_vector
= vsi
->q_vectors
[v_idx
];
4613 struct i40e_ring
*ring
;
4618 /* disassociate q_vector from rings */
4619 i40e_for_each_ring(ring
, q_vector
->tx
)
4620 ring
->q_vector
= NULL
;
4622 i40e_for_each_ring(ring
, q_vector
->rx
)
4623 ring
->q_vector
= NULL
;
4625 /* only VSI w/ an associated netdev is set up w/ NAPI */
4627 netif_napi_del(&q_vector
->napi
);
4629 vsi
->q_vectors
[v_idx
] = NULL
;
4631 kfree_rcu(q_vector
, rcu
);
4635 * i40e_vsi_free_q_vectors - Free memory allocated for interrupt vectors
4636 * @vsi: the VSI being un-configured
4638 * This frees the memory allocated to the q_vectors and
4639 * deletes references to the NAPI struct.
4641 static void i40e_vsi_free_q_vectors(struct i40e_vsi
*vsi
)
4645 for (v_idx
= 0; v_idx
< vsi
->num_q_vectors
; v_idx
++)
4646 i40e_free_q_vector(vsi
, v_idx
);
4650 * i40e_reset_interrupt_capability - Disable interrupt setup in OS
4651 * @pf: board private structure
4653 static void i40e_reset_interrupt_capability(struct i40e_pf
*pf
)
4655 /* If we're in Legacy mode, the interrupt was cleaned in vsi_close */
4656 if (pf
->flags
& I40E_FLAG_MSIX_ENABLED
) {
4657 pci_disable_msix(pf
->pdev
);
4658 kfree(pf
->msix_entries
);
4659 pf
->msix_entries
= NULL
;
4660 kfree(pf
->irq_pile
);
4661 pf
->irq_pile
= NULL
;
4662 } else if (pf
->flags
& I40E_FLAG_MSI_ENABLED
) {
4663 pci_disable_msi(pf
->pdev
);
4665 pf
->flags
&= ~(I40E_FLAG_MSIX_ENABLED
| I40E_FLAG_MSI_ENABLED
);
4669 * i40e_clear_interrupt_scheme - Clear the current interrupt scheme settings
4670 * @pf: board private structure
4672 * We go through and clear interrupt specific resources and reset the structure
4673 * to pre-load conditions
4675 static void i40e_clear_interrupt_scheme(struct i40e_pf
*pf
)
4679 i40e_free_misc_vector(pf
);
4681 i40e_put_lump(pf
->irq_pile
, pf
->iwarp_base_vector
,
4682 I40E_IWARP_IRQ_PILE_ID
);
4684 i40e_put_lump(pf
->irq_pile
, 0, I40E_PILE_VALID_BIT
-1);
4685 for (i
= 0; i
< pf
->num_alloc_vsi
; i
++)
4687 i40e_vsi_free_q_vectors(pf
->vsi
[i
]);
4688 i40e_reset_interrupt_capability(pf
);
4692 * i40e_napi_enable_all - Enable NAPI for all q_vectors in the VSI
4693 * @vsi: the VSI being configured
4695 static void i40e_napi_enable_all(struct i40e_vsi
*vsi
)
4702 for (q_idx
= 0; q_idx
< vsi
->num_q_vectors
; q_idx
++) {
4703 struct i40e_q_vector
*q_vector
= vsi
->q_vectors
[q_idx
];
4705 if (q_vector
->rx
.ring
|| q_vector
->tx
.ring
)
4706 napi_enable(&q_vector
->napi
);
4711 * i40e_napi_disable_all - Disable NAPI for all q_vectors in the VSI
4712 * @vsi: the VSI being configured
4714 static void i40e_napi_disable_all(struct i40e_vsi
*vsi
)
4721 for (q_idx
= 0; q_idx
< vsi
->num_q_vectors
; q_idx
++) {
4722 struct i40e_q_vector
*q_vector
= vsi
->q_vectors
[q_idx
];
4724 if (q_vector
->rx
.ring
|| q_vector
->tx
.ring
)
4725 napi_disable(&q_vector
->napi
);
4730 * i40e_vsi_close - Shut down a VSI
4731 * @vsi: the vsi to be quelled
4733 static void i40e_vsi_close(struct i40e_vsi
*vsi
)
4735 struct i40e_pf
*pf
= vsi
->back
;
4736 if (!test_and_set_bit(__I40E_VSI_DOWN
, vsi
->state
))
4738 i40e_vsi_free_irq(vsi
);
4739 i40e_vsi_free_tx_resources(vsi
);
4740 i40e_vsi_free_rx_resources(vsi
);
4741 vsi
->current_netdev_flags
= 0;
4742 pf
->flags
|= I40E_FLAG_SERVICE_CLIENT_REQUESTED
;
4743 if (test_bit(__I40E_RESET_RECOVERY_PENDING
, pf
->state
))
4744 pf
->flags
|= I40E_FLAG_CLIENT_RESET
;
4748 * i40e_quiesce_vsi - Pause a given VSI
4749 * @vsi: the VSI being paused
4751 static void i40e_quiesce_vsi(struct i40e_vsi
*vsi
)
4753 if (test_bit(__I40E_VSI_DOWN
, vsi
->state
))
4756 set_bit(__I40E_VSI_NEEDS_RESTART
, vsi
->state
);
4757 if (vsi
->netdev
&& netif_running(vsi
->netdev
))
4758 vsi
->netdev
->netdev_ops
->ndo_stop(vsi
->netdev
);
4760 i40e_vsi_close(vsi
);
4764 * i40e_unquiesce_vsi - Resume a given VSI
4765 * @vsi: the VSI being resumed
4767 static void i40e_unquiesce_vsi(struct i40e_vsi
*vsi
)
4769 if (!test_and_clear_bit(__I40E_VSI_NEEDS_RESTART
, vsi
->state
))
4772 if (vsi
->netdev
&& netif_running(vsi
->netdev
))
4773 vsi
->netdev
->netdev_ops
->ndo_open(vsi
->netdev
);
4775 i40e_vsi_open(vsi
); /* this clears the DOWN bit */
4779 * i40e_pf_quiesce_all_vsi - Pause all VSIs on a PF
4782 static void i40e_pf_quiesce_all_vsi(struct i40e_pf
*pf
)
4786 for (v
= 0; v
< pf
->num_alloc_vsi
; v
++) {
4788 i40e_quiesce_vsi(pf
->vsi
[v
]);
4793 * i40e_pf_unquiesce_all_vsi - Resume all VSIs on a PF
4796 static void i40e_pf_unquiesce_all_vsi(struct i40e_pf
*pf
)
4800 for (v
= 0; v
< pf
->num_alloc_vsi
; v
++) {
4802 i40e_unquiesce_vsi(pf
->vsi
[v
]);
4807 * i40e_vsi_wait_queues_disabled - Wait for VSI's queues to be disabled
4808 * @vsi: the VSI being configured
4810 * Wait until all queues on a given VSI have been disabled.
4812 int i40e_vsi_wait_queues_disabled(struct i40e_vsi
*vsi
)
4814 struct i40e_pf
*pf
= vsi
->back
;
4817 pf_q
= vsi
->base_queue
;
4818 for (i
= 0; i
< vsi
->num_queue_pairs
; i
++, pf_q
++) {
4819 /* Check and wait for the Tx queue */
4820 ret
= i40e_pf_txq_wait(pf
, pf_q
, false);
4822 dev_info(&pf
->pdev
->dev
,
4823 "VSI seid %d Tx ring %d disable timeout\n",
4828 if (!i40e_enabled_xdp_vsi(vsi
))
4831 /* Check and wait for the XDP Tx queue */
4832 ret
= i40e_pf_txq_wait(pf
, pf_q
+ vsi
->alloc_queue_pairs
,
4835 dev_info(&pf
->pdev
->dev
,
4836 "VSI seid %d XDP Tx ring %d disable timeout\n",
4841 /* Check and wait for the Rx queue */
4842 ret
= i40e_pf_rxq_wait(pf
, pf_q
, false);
4844 dev_info(&pf
->pdev
->dev
,
4845 "VSI seid %d Rx ring %d disable timeout\n",
4854 #ifdef CONFIG_I40E_DCB
4856 * i40e_pf_wait_queues_disabled - Wait for all queues of PF VSIs to be disabled
4859 * This function waits for the queues to be in disabled state for all the
4860 * VSIs that are managed by this PF.
4862 static int i40e_pf_wait_queues_disabled(struct i40e_pf
*pf
)
4866 for (v
= 0; v
< pf
->hw
.func_caps
.num_vsis
; v
++) {
4868 ret
= i40e_vsi_wait_queues_disabled(pf
->vsi
[v
]);
4880 * i40e_detect_recover_hung_queue - Function to detect and recover hung_queue
4881 * @q_idx: TX queue number
4882 * @vsi: Pointer to VSI struct
4884 * This function checks specified queue for given VSI. Detects hung condition.
4885 * We proactively detect hung TX queues by checking if interrupts are disabled
4886 * but there are pending descriptors. If it appears hung, attempt to recover
4887 * by triggering a SW interrupt.
4889 static void i40e_detect_recover_hung_queue(int q_idx
, struct i40e_vsi
*vsi
)
4891 struct i40e_ring
*tx_ring
= NULL
;
4893 u32 val
, tx_pending
;
4898 /* now that we have an index, find the tx_ring struct */
4899 for (i
= 0; i
< vsi
->num_queue_pairs
; i
++) {
4900 if (vsi
->tx_rings
[i
] && vsi
->tx_rings
[i
]->desc
) {
4901 if (q_idx
== vsi
->tx_rings
[i
]->queue_index
) {
4902 tx_ring
= vsi
->tx_rings
[i
];
4911 /* Read interrupt register */
4912 if (pf
->flags
& I40E_FLAG_MSIX_ENABLED
)
4914 I40E_PFINT_DYN_CTLN(tx_ring
->q_vector
->v_idx
+
4915 tx_ring
->vsi
->base_vector
- 1));
4917 val
= rd32(&pf
->hw
, I40E_PFINT_DYN_CTL0
);
4919 tx_pending
= i40e_get_tx_pending(tx_ring
);
4921 /* Interrupts are disabled and TX pending is non-zero,
4922 * trigger the SW interrupt (don't wait). Worst case
4923 * there will be one extra interrupt which may result
4924 * into not cleaning any queues because queues are cleaned.
4926 if (tx_pending
&& (!(val
& I40E_PFINT_DYN_CTLN_INTENA_MASK
)))
4927 i40e_force_wb(vsi
, tx_ring
->q_vector
);
4931 * i40e_detect_recover_hung - Function to detect and recover hung_queues
4932 * @pf: pointer to PF struct
4934 * LAN VSI has netdev and netdev has TX queues. This function is to check
4935 * each of those TX queues if they are hung, trigger recovery by issuing
4938 static void i40e_detect_recover_hung(struct i40e_pf
*pf
)
4940 struct net_device
*netdev
;
4941 struct i40e_vsi
*vsi
;
4944 /* Only for LAN VSI */
4945 vsi
= pf
->vsi
[pf
->lan_vsi
];
4950 /* Make sure, VSI state is not DOWN/RECOVERY_PENDING */
4951 if (test_bit(__I40E_VSI_DOWN
, vsi
->back
->state
) ||
4952 test_bit(__I40E_RESET_RECOVERY_PENDING
, vsi
->back
->state
))
4955 /* Make sure type is MAIN VSI */
4956 if (vsi
->type
!= I40E_VSI_MAIN
)
4959 netdev
= vsi
->netdev
;
4963 /* Bail out if netif_carrier is not OK */
4964 if (!netif_carrier_ok(netdev
))
4967 /* Go thru' TX queues for netdev */
4968 for (i
= 0; i
< netdev
->num_tx_queues
; i
++) {
4969 struct netdev_queue
*q
;
4971 q
= netdev_get_tx_queue(netdev
, i
);
4973 i40e_detect_recover_hung_queue(i
, vsi
);
4978 * i40e_get_iscsi_tc_map - Return TC map for iSCSI APP
4979 * @pf: pointer to PF
4981 * Get TC map for ISCSI PF type that will include iSCSI TC
4984 static u8
i40e_get_iscsi_tc_map(struct i40e_pf
*pf
)
4986 struct i40e_dcb_app_priority_table app
;
4987 struct i40e_hw
*hw
= &pf
->hw
;
4988 u8 enabled_tc
= 1; /* TC0 is always enabled */
4990 /* Get the iSCSI APP TLV */
4991 struct i40e_dcbx_config
*dcbcfg
= &hw
->local_dcbx_config
;
4993 for (i
= 0; i
< dcbcfg
->numapps
; i
++) {
4994 app
= dcbcfg
->app
[i
];
4995 if (app
.selector
== I40E_APP_SEL_TCPIP
&&
4996 app
.protocolid
== I40E_APP_PROTOID_ISCSI
) {
4997 tc
= dcbcfg
->etscfg
.prioritytable
[app
.priority
];
4998 enabled_tc
|= BIT(tc
);
5007 * i40e_dcb_get_num_tc - Get the number of TCs from DCBx config
5008 * @dcbcfg: the corresponding DCBx configuration structure
5010 * Return the number of TCs from given DCBx configuration
5012 static u8
i40e_dcb_get_num_tc(struct i40e_dcbx_config
*dcbcfg
)
5014 int i
, tc_unused
= 0;
5018 /* Scan the ETS Config Priority Table to find
5019 * traffic class enabled for a given priority
5020 * and create a bitmask of enabled TCs
5022 for (i
= 0; i
< I40E_MAX_USER_PRIORITY
; i
++)
5023 num_tc
|= BIT(dcbcfg
->etscfg
.prioritytable
[i
]);
5025 /* Now scan the bitmask to check for
5026 * contiguous TCs starting with TC0
5028 for (i
= 0; i
< I40E_MAX_TRAFFIC_CLASS
; i
++) {
5029 if (num_tc
& BIT(i
)) {
5033 pr_err("Non-contiguous TC - Disabling DCB\n");
5041 /* There is always at least TC0 */
5049 * i40e_dcb_get_enabled_tc - Get enabled traffic classes
5050 * @dcbcfg: the corresponding DCBx configuration structure
5052 * Query the current DCB configuration and return the number of
5053 * traffic classes enabled from the given DCBX config
5055 static u8
i40e_dcb_get_enabled_tc(struct i40e_dcbx_config
*dcbcfg
)
5057 u8 num_tc
= i40e_dcb_get_num_tc(dcbcfg
);
5061 for (i
= 0; i
< num_tc
; i
++)
5062 enabled_tc
|= BIT(i
);
5068 * i40e_mqprio_get_enabled_tc - Get enabled traffic classes
5069 * @pf: PF being queried
5071 * Query the current MQPRIO configuration and return the number of
5072 * traffic classes enabled.
5074 static u8
i40e_mqprio_get_enabled_tc(struct i40e_pf
*pf
)
5076 struct i40e_vsi
*vsi
= pf
->vsi
[pf
->lan_vsi
];
5077 u8 num_tc
= vsi
->mqprio_qopt
.qopt
.num_tc
;
5078 u8 enabled_tc
= 1, i
;
5080 for (i
= 1; i
< num_tc
; i
++)
5081 enabled_tc
|= BIT(i
);
5086 * i40e_pf_get_num_tc - Get enabled traffic classes for PF
5087 * @pf: PF being queried
5089 * Return number of traffic classes enabled for the given PF
5091 static u8
i40e_pf_get_num_tc(struct i40e_pf
*pf
)
5093 struct i40e_hw
*hw
= &pf
->hw
;
5094 u8 i
, enabled_tc
= 1;
5096 struct i40e_dcbx_config
*dcbcfg
= &hw
->local_dcbx_config
;
5098 if (pf
->flags
& I40E_FLAG_TC_MQPRIO
)
5099 return pf
->vsi
[pf
->lan_vsi
]->mqprio_qopt
.qopt
.num_tc
;
5101 /* If neither MQPRIO nor DCB is enabled, then always use single TC */
5102 if (!(pf
->flags
& I40E_FLAG_DCB_ENABLED
))
5105 /* SFP mode will be enabled for all TCs on port */
5106 if (!(pf
->flags
& I40E_FLAG_MFP_ENABLED
))
5107 return i40e_dcb_get_num_tc(dcbcfg
);
5109 /* MFP mode return count of enabled TCs for this PF */
5110 if (pf
->hw
.func_caps
.iscsi
)
5111 enabled_tc
= i40e_get_iscsi_tc_map(pf
);
5113 return 1; /* Only TC0 */
5115 for (i
= 0; i
< I40E_MAX_TRAFFIC_CLASS
; i
++) {
5116 if (enabled_tc
& BIT(i
))
5123 * i40e_pf_get_pf_tc_map - Get bitmap for enabled traffic classes
5124 * @pf: PF being queried
5126 * Return a bitmap for enabled traffic classes for this PF.
5128 static u8
i40e_pf_get_tc_map(struct i40e_pf
*pf
)
5130 if (pf
->flags
& I40E_FLAG_TC_MQPRIO
)
5131 return i40e_mqprio_get_enabled_tc(pf
);
5133 /* If neither MQPRIO nor DCB is enabled for this PF then just return
5136 if (!(pf
->flags
& I40E_FLAG_DCB_ENABLED
))
5137 return I40E_DEFAULT_TRAFFIC_CLASS
;
5139 /* SFP mode we want PF to be enabled for all TCs */
5140 if (!(pf
->flags
& I40E_FLAG_MFP_ENABLED
))
5141 return i40e_dcb_get_enabled_tc(&pf
->hw
.local_dcbx_config
);
5143 /* MFP enabled and iSCSI PF type */
5144 if (pf
->hw
.func_caps
.iscsi
)
5145 return i40e_get_iscsi_tc_map(pf
);
5147 return I40E_DEFAULT_TRAFFIC_CLASS
;
5151 * i40e_vsi_get_bw_info - Query VSI BW Information
5152 * @vsi: the VSI being queried
5154 * Returns 0 on success, negative value on failure
5156 static int i40e_vsi_get_bw_info(struct i40e_vsi
*vsi
)
5158 struct i40e_aqc_query_vsi_ets_sla_config_resp bw_ets_config
= {0};
5159 struct i40e_aqc_query_vsi_bw_config_resp bw_config
= {0};
5160 struct i40e_pf
*pf
= vsi
->back
;
5161 struct i40e_hw
*hw
= &pf
->hw
;
5166 /* Get the VSI level BW configuration */
5167 ret
= i40e_aq_query_vsi_bw_config(hw
, vsi
->seid
, &bw_config
, NULL
);
5169 dev_info(&pf
->pdev
->dev
,
5170 "couldn't get PF vsi bw config, err %s aq_err %s\n",
5171 i40e_stat_str(&pf
->hw
, ret
),
5172 i40e_aq_str(&pf
->hw
, pf
->hw
.aq
.asq_last_status
));
5176 /* Get the VSI level BW configuration per TC */
5177 ret
= i40e_aq_query_vsi_ets_sla_config(hw
, vsi
->seid
, &bw_ets_config
,
5180 dev_info(&pf
->pdev
->dev
,
5181 "couldn't get PF vsi ets bw config, err %s aq_err %s\n",
5182 i40e_stat_str(&pf
->hw
, ret
),
5183 i40e_aq_str(&pf
->hw
, pf
->hw
.aq
.asq_last_status
));
5187 if (bw_config
.tc_valid_bits
!= bw_ets_config
.tc_valid_bits
) {
5188 dev_info(&pf
->pdev
->dev
,
5189 "Enabled TCs mismatch from querying VSI BW info 0x%08x 0x%08x\n",
5190 bw_config
.tc_valid_bits
,
5191 bw_ets_config
.tc_valid_bits
);
5192 /* Still continuing */
5195 vsi
->bw_limit
= le16_to_cpu(bw_config
.port_bw_limit
);
5196 vsi
->bw_max_quanta
= bw_config
.max_bw
;
5197 tc_bw_max
= le16_to_cpu(bw_ets_config
.tc_bw_max
[0]) |
5198 (le16_to_cpu(bw_ets_config
.tc_bw_max
[1]) << 16);
5199 for (i
= 0; i
< I40E_MAX_TRAFFIC_CLASS
; i
++) {
5200 vsi
->bw_ets_share_credits
[i
] = bw_ets_config
.share_credits
[i
];
5201 vsi
->bw_ets_limit_credits
[i
] =
5202 le16_to_cpu(bw_ets_config
.credits
[i
]);
5203 /* 3 bits out of 4 for each TC */
5204 vsi
->bw_ets_max_quanta
[i
] = (u8
)((tc_bw_max
>> (i
*4)) & 0x7);
5211 * i40e_vsi_configure_bw_alloc - Configure VSI BW allocation per TC
5212 * @vsi: the VSI being configured
5213 * @enabled_tc: TC bitmap
5214 * @bw_credits: BW shared credits per TC
5216 * Returns 0 on success, negative value on failure
5218 static int i40e_vsi_configure_bw_alloc(struct i40e_vsi
*vsi
, u8 enabled_tc
,
5221 struct i40e_aqc_configure_vsi_tc_bw_data bw_data
;
5225 if (vsi
->back
->flags
& I40E_FLAG_TC_MQPRIO
)
5227 if (!vsi
->mqprio_qopt
.qopt
.hw
) {
5228 ret
= i40e_set_bw_limit(vsi
, vsi
->seid
, 0);
5230 dev_info(&vsi
->back
->pdev
->dev
,
5231 "Failed to reset tx rate for vsi->seid %u\n",
5235 bw_data
.tc_valid_bits
= enabled_tc
;
5236 for (i
= 0; i
< I40E_MAX_TRAFFIC_CLASS
; i
++)
5237 bw_data
.tc_bw_credits
[i
] = bw_share
[i
];
5239 ret
= i40e_aq_config_vsi_tc_bw(&vsi
->back
->hw
, vsi
->seid
, &bw_data
,
5242 dev_info(&vsi
->back
->pdev
->dev
,
5243 "AQ command Config VSI BW allocation per TC failed = %d\n",
5244 vsi
->back
->hw
.aq
.asq_last_status
);
5248 for (i
= 0; i
< I40E_MAX_TRAFFIC_CLASS
; i
++)
5249 vsi
->info
.qs_handle
[i
] = bw_data
.qs_handles
[i
];
5255 * i40e_vsi_config_netdev_tc - Setup the netdev TC configuration
5256 * @vsi: the VSI being configured
5257 * @enabled_tc: TC map to be enabled
5260 static void i40e_vsi_config_netdev_tc(struct i40e_vsi
*vsi
, u8 enabled_tc
)
5262 struct net_device
*netdev
= vsi
->netdev
;
5263 struct i40e_pf
*pf
= vsi
->back
;
5264 struct i40e_hw
*hw
= &pf
->hw
;
5267 struct i40e_dcbx_config
*dcbcfg
= &hw
->local_dcbx_config
;
5273 netdev_reset_tc(netdev
);
5277 /* Set up actual enabled TCs on the VSI */
5278 if (netdev_set_num_tc(netdev
, vsi
->tc_config
.numtc
))
5281 /* set per TC queues for the VSI */
5282 for (i
= 0; i
< I40E_MAX_TRAFFIC_CLASS
; i
++) {
5283 /* Only set TC queues for enabled tcs
5285 * e.g. For a VSI that has TC0 and TC3 enabled the
5286 * enabled_tc bitmap would be 0x00001001; the driver
5287 * will set the numtc for netdev as 2 that will be
5288 * referenced by the netdev layer as TC 0 and 1.
5290 if (vsi
->tc_config
.enabled_tc
& BIT(i
))
5291 netdev_set_tc_queue(netdev
,
5292 vsi
->tc_config
.tc_info
[i
].netdev_tc
,
5293 vsi
->tc_config
.tc_info
[i
].qcount
,
5294 vsi
->tc_config
.tc_info
[i
].qoffset
);
5297 if (pf
->flags
& I40E_FLAG_TC_MQPRIO
)
5300 /* Assign UP2TC map for the VSI */
5301 for (i
= 0; i
< I40E_MAX_USER_PRIORITY
; i
++) {
5302 /* Get the actual TC# for the UP */
5303 u8 ets_tc
= dcbcfg
->etscfg
.prioritytable
[i
];
5304 /* Get the mapped netdev TC# for the UP */
5305 netdev_tc
= vsi
->tc_config
.tc_info
[ets_tc
].netdev_tc
;
5306 netdev_set_prio_tc_map(netdev
, i
, netdev_tc
);
5311 * i40e_vsi_update_queue_map - Update our copy of VSi info with new queue map
5312 * @vsi: the VSI being configured
5313 * @ctxt: the ctxt buffer returned from AQ VSI update param command
5315 static void i40e_vsi_update_queue_map(struct i40e_vsi
*vsi
,
5316 struct i40e_vsi_context
*ctxt
)
5318 /* copy just the sections touched not the entire info
5319 * since not all sections are valid as returned by
5322 vsi
->info
.mapping_flags
= ctxt
->info
.mapping_flags
;
5323 memcpy(&vsi
->info
.queue_mapping
,
5324 &ctxt
->info
.queue_mapping
, sizeof(vsi
->info
.queue_mapping
));
5325 memcpy(&vsi
->info
.tc_mapping
, ctxt
->info
.tc_mapping
,
5326 sizeof(vsi
->info
.tc_mapping
));
5330 * i40e_vsi_config_tc - Configure VSI Tx Scheduler for given TC map
5331 * @vsi: VSI to be configured
5332 * @enabled_tc: TC bitmap
5334 * This configures a particular VSI for TCs that are mapped to the
5335 * given TC bitmap. It uses default bandwidth share for TCs across
5336 * VSIs to configure TC for a particular VSI.
5339 * It is expected that the VSI queues have been quisced before calling
5342 static int i40e_vsi_config_tc(struct i40e_vsi
*vsi
, u8 enabled_tc
)
5344 u8 bw_share
[I40E_MAX_TRAFFIC_CLASS
] = {0};
5345 struct i40e_vsi_context ctxt
;
5349 /* Check if enabled_tc is same as existing or new TCs */
5350 if (vsi
->tc_config
.enabled_tc
== enabled_tc
&&
5351 vsi
->mqprio_qopt
.mode
!= TC_MQPRIO_MODE_CHANNEL
)
5354 /* Enable ETS TCs with equal BW Share for now across all VSIs */
5355 for (i
= 0; i
< I40E_MAX_TRAFFIC_CLASS
; i
++) {
5356 if (enabled_tc
& BIT(i
))
5360 ret
= i40e_vsi_configure_bw_alloc(vsi
, enabled_tc
, bw_share
);
5362 dev_info(&vsi
->back
->pdev
->dev
,
5363 "Failed configuring TC map %d for VSI %d\n",
5364 enabled_tc
, vsi
->seid
);
5368 /* Update Queue Pairs Mapping for currently enabled UPs */
5369 ctxt
.seid
= vsi
->seid
;
5370 ctxt
.pf_num
= vsi
->back
->hw
.pf_id
;
5372 ctxt
.uplink_seid
= vsi
->uplink_seid
;
5373 ctxt
.info
= vsi
->info
;
5374 if (vsi
->back
->flags
& I40E_FLAG_TC_MQPRIO
) {
5375 ret
= i40e_vsi_setup_queue_map_mqprio(vsi
, &ctxt
, enabled_tc
);
5379 i40e_vsi_setup_queue_map(vsi
, &ctxt
, enabled_tc
, false);
5382 /* On destroying the qdisc, reset vsi->rss_size, as number of enabled
5385 if (!vsi
->mqprio_qopt
.qopt
.hw
&& vsi
->reconfig_rss
) {
5386 vsi
->rss_size
= min_t(int, vsi
->back
->alloc_rss_size
,
5387 vsi
->num_queue_pairs
);
5388 ret
= i40e_vsi_config_rss(vsi
);
5390 dev_info(&vsi
->back
->pdev
->dev
,
5391 "Failed to reconfig rss for num_queues\n");
5394 vsi
->reconfig_rss
= false;
5396 if (vsi
->back
->flags
& I40E_FLAG_IWARP_ENABLED
) {
5397 ctxt
.info
.valid_sections
|=
5398 cpu_to_le16(I40E_AQ_VSI_PROP_QUEUE_OPT_VALID
);
5399 ctxt
.info
.queueing_opt_flags
|= I40E_AQ_VSI_QUE_OPT_TCP_ENA
;
5402 /* Update the VSI after updating the VSI queue-mapping
5405 ret
= i40e_aq_update_vsi_params(&vsi
->back
->hw
, &ctxt
, NULL
);
5407 dev_info(&vsi
->back
->pdev
->dev
,
5408 "Update vsi tc config failed, err %s aq_err %s\n",
5409 i40e_stat_str(&vsi
->back
->hw
, ret
),
5410 i40e_aq_str(&vsi
->back
->hw
,
5411 vsi
->back
->hw
.aq
.asq_last_status
));
5414 /* update the local VSI info with updated queue map */
5415 i40e_vsi_update_queue_map(vsi
, &ctxt
);
5416 vsi
->info
.valid_sections
= 0;
5418 /* Update current VSI BW information */
5419 ret
= i40e_vsi_get_bw_info(vsi
);
5421 dev_info(&vsi
->back
->pdev
->dev
,
5422 "Failed updating vsi bw info, err %s aq_err %s\n",
5423 i40e_stat_str(&vsi
->back
->hw
, ret
),
5424 i40e_aq_str(&vsi
->back
->hw
,
5425 vsi
->back
->hw
.aq
.asq_last_status
));
5429 /* Update the netdev TC setup */
5430 i40e_vsi_config_netdev_tc(vsi
, enabled_tc
);
5436 * i40e_get_link_speed - Returns link speed for the interface
5437 * @vsi: VSI to be configured
5440 int i40e_get_link_speed(struct i40e_vsi
*vsi
)
5442 struct i40e_pf
*pf
= vsi
->back
;
5444 switch (pf
->hw
.phy
.link_info
.link_speed
) {
5445 case I40E_LINK_SPEED_40GB
:
5447 case I40E_LINK_SPEED_25GB
:
5449 case I40E_LINK_SPEED_20GB
:
5451 case I40E_LINK_SPEED_10GB
:
5453 case I40E_LINK_SPEED_1GB
:
5461 * i40e_set_bw_limit - setup BW limit for Tx traffic based on max_tx_rate
5462 * @vsi: VSI to be configured
5463 * @seid: seid of the channel/VSI
5464 * @max_tx_rate: max TX rate to be configured as BW limit
5466 * Helper function to set BW limit for a given VSI
5468 int i40e_set_bw_limit(struct i40e_vsi
*vsi
, u16 seid
, u64 max_tx_rate
)
5470 struct i40e_pf
*pf
= vsi
->back
;
5475 speed
= i40e_get_link_speed(vsi
);
5476 if (max_tx_rate
> speed
) {
5477 dev_err(&pf
->pdev
->dev
,
5478 "Invalid max tx rate %llu specified for VSI seid %d.",
5482 if (max_tx_rate
&& max_tx_rate
< 50) {
5483 dev_warn(&pf
->pdev
->dev
,
5484 "Setting max tx rate to minimum usable value of 50Mbps.\n");
5488 /* Tx rate credits are in values of 50Mbps, 0 is disabled */
5489 credits
= max_tx_rate
;
5490 do_div(credits
, I40E_BW_CREDIT_DIVISOR
);
5491 ret
= i40e_aq_config_vsi_bw_limit(&pf
->hw
, seid
, credits
,
5492 I40E_MAX_BW_INACTIVE_ACCUM
, NULL
);
5494 dev_err(&pf
->pdev
->dev
,
5495 "Failed set tx rate (%llu Mbps) for vsi->seid %u, err %s aq_err %s\n",
5496 max_tx_rate
, seid
, i40e_stat_str(&pf
->hw
, ret
),
5497 i40e_aq_str(&pf
->hw
, pf
->hw
.aq
.asq_last_status
));
5502 * i40e_remove_queue_channels - Remove queue channels for the TCs
5503 * @vsi: VSI to be configured
5505 * Remove queue channels for the TCs
5507 static void i40e_remove_queue_channels(struct i40e_vsi
*vsi
)
5509 enum i40e_admin_queue_err last_aq_status
;
5510 struct i40e_cloud_filter
*cfilter
;
5511 struct i40e_channel
*ch
, *ch_tmp
;
5512 struct i40e_pf
*pf
= vsi
->back
;
5513 struct hlist_node
*node
;
5516 /* Reset rss size that was stored when reconfiguring rss for
5517 * channel VSIs with non-power-of-2 queue count.
5519 vsi
->current_rss_size
= 0;
5521 /* perform cleanup for channels if they exist */
5522 if (list_empty(&vsi
->ch_list
))
5525 list_for_each_entry_safe(ch
, ch_tmp
, &vsi
->ch_list
, list
) {
5526 struct i40e_vsi
*p_vsi
;
5528 list_del(&ch
->list
);
5529 p_vsi
= ch
->parent_vsi
;
5530 if (!p_vsi
|| !ch
->initialized
) {
5534 /* Reset queue contexts */
5535 for (i
= 0; i
< ch
->num_queue_pairs
; i
++) {
5536 struct i40e_ring
*tx_ring
, *rx_ring
;
5539 pf_q
= ch
->base_queue
+ i
;
5540 tx_ring
= vsi
->tx_rings
[pf_q
];
5543 rx_ring
= vsi
->rx_rings
[pf_q
];
5547 /* Reset BW configured for this VSI via mqprio */
5548 ret
= i40e_set_bw_limit(vsi
, ch
->seid
, 0);
5550 dev_info(&vsi
->back
->pdev
->dev
,
5551 "Failed to reset tx rate for ch->seid %u\n",
5554 /* delete cloud filters associated with this channel */
5555 hlist_for_each_entry_safe(cfilter
, node
,
5556 &pf
->cloud_filter_list
, cloud_node
) {
5557 if (cfilter
->seid
!= ch
->seid
)
5560 hash_del(&cfilter
->cloud_node
);
5561 if (cfilter
->dst_port
)
5562 ret
= i40e_add_del_cloud_filter_big_buf(vsi
,
5566 ret
= i40e_add_del_cloud_filter(vsi
, cfilter
,
5568 last_aq_status
= pf
->hw
.aq
.asq_last_status
;
5570 dev_info(&pf
->pdev
->dev
,
5571 "Failed to delete cloud filter, err %s aq_err %s\n",
5572 i40e_stat_str(&pf
->hw
, ret
),
5573 i40e_aq_str(&pf
->hw
, last_aq_status
));
5577 /* delete VSI from FW */
5578 ret
= i40e_aq_delete_element(&vsi
->back
->hw
, ch
->seid
,
5581 dev_err(&vsi
->back
->pdev
->dev
,
5582 "unable to remove channel (%d) for parent VSI(%d)\n",
5583 ch
->seid
, p_vsi
->seid
);
5586 INIT_LIST_HEAD(&vsi
->ch_list
);
5590 * i40e_is_any_channel - channel exist or not
5591 * @vsi: ptr to VSI to which channels are associated with
5593 * Returns true or false if channel(s) exist for associated VSI or not
5595 static bool i40e_is_any_channel(struct i40e_vsi
*vsi
)
5597 struct i40e_channel
*ch
, *ch_tmp
;
5599 list_for_each_entry_safe(ch
, ch_tmp
, &vsi
->ch_list
, list
) {
5600 if (ch
->initialized
)
5608 * i40e_get_max_queues_for_channel
5609 * @vsi: ptr to VSI to which channels are associated with
5611 * Helper function which returns max value among the queue counts set on the
5612 * channels/TCs created.
5614 static int i40e_get_max_queues_for_channel(struct i40e_vsi
*vsi
)
5616 struct i40e_channel
*ch
, *ch_tmp
;
5619 list_for_each_entry_safe(ch
, ch_tmp
, &vsi
->ch_list
, list
) {
5620 if (!ch
->initialized
)
5622 if (ch
->num_queue_pairs
> max
)
5623 max
= ch
->num_queue_pairs
;
5630 * i40e_validate_num_queues - validate num_queues w.r.t channel
5631 * @pf: ptr to PF device
5632 * @num_queues: number of queues
5633 * @vsi: the parent VSI
5634 * @reconfig_rss: indicates should the RSS be reconfigured or not
5636 * This function validates number of queues in the context of new channel
5637 * which is being established and determines if RSS should be reconfigured
5638 * or not for parent VSI.
5640 static int i40e_validate_num_queues(struct i40e_pf
*pf
, int num_queues
,
5641 struct i40e_vsi
*vsi
, bool *reconfig_rss
)
5648 *reconfig_rss
= false;
5649 if (vsi
->current_rss_size
) {
5650 if (num_queues
> vsi
->current_rss_size
) {
5651 dev_dbg(&pf
->pdev
->dev
,
5652 "Error: num_queues (%d) > vsi's current_size(%d)\n",
5653 num_queues
, vsi
->current_rss_size
);
5655 } else if ((num_queues
< vsi
->current_rss_size
) &&
5656 (!is_power_of_2(num_queues
))) {
5657 dev_dbg(&pf
->pdev
->dev
,
5658 "Error: num_queues (%d) < vsi's current_size(%d), but not power of 2\n",
5659 num_queues
, vsi
->current_rss_size
);
5664 if (!is_power_of_2(num_queues
)) {
5665 /* Find the max num_queues configured for channel if channel
5667 * if channel exist, then enforce 'num_queues' to be more than
5668 * max ever queues configured for channel.
5670 max_ch_queues
= i40e_get_max_queues_for_channel(vsi
);
5671 if (num_queues
< max_ch_queues
) {
5672 dev_dbg(&pf
->pdev
->dev
,
5673 "Error: num_queues (%d) < max queues configured for channel(%d)\n",
5674 num_queues
, max_ch_queues
);
5677 *reconfig_rss
= true;
5684 * i40e_vsi_reconfig_rss - reconfig RSS based on specified rss_size
5685 * @vsi: the VSI being setup
5686 * @rss_size: size of RSS, accordingly LUT gets reprogrammed
5688 * This function reconfigures RSS by reprogramming LUTs using 'rss_size'
5690 static int i40e_vsi_reconfig_rss(struct i40e_vsi
*vsi
, u16 rss_size
)
5692 struct i40e_pf
*pf
= vsi
->back
;
5693 u8 seed
[I40E_HKEY_ARRAY_SIZE
];
5694 struct i40e_hw
*hw
= &pf
->hw
;
5702 if (rss_size
> vsi
->rss_size
)
5705 local_rss_size
= min_t(int, vsi
->rss_size
, rss_size
);
5706 lut
= kzalloc(vsi
->rss_table_size
, GFP_KERNEL
);
5710 /* Ignoring user configured lut if there is one */
5711 i40e_fill_rss_lut(pf
, lut
, vsi
->rss_table_size
, local_rss_size
);
5713 /* Use user configured hash key if there is one, otherwise
5716 if (vsi
->rss_hkey_user
)
5717 memcpy(seed
, vsi
->rss_hkey_user
, I40E_HKEY_ARRAY_SIZE
);
5719 netdev_rss_key_fill((void *)seed
, I40E_HKEY_ARRAY_SIZE
);
5721 ret
= i40e_config_rss(vsi
, seed
, lut
, vsi
->rss_table_size
);
5723 dev_info(&pf
->pdev
->dev
,
5724 "Cannot set RSS lut, err %s aq_err %s\n",
5725 i40e_stat_str(hw
, ret
),
5726 i40e_aq_str(hw
, hw
->aq
.asq_last_status
));
5732 /* Do the update w.r.t. storing rss_size */
5733 if (!vsi
->orig_rss_size
)
5734 vsi
->orig_rss_size
= vsi
->rss_size
;
5735 vsi
->current_rss_size
= local_rss_size
;
5741 * i40e_channel_setup_queue_map - Setup a channel queue map
5742 * @pf: ptr to PF device
5743 * @vsi: the VSI being setup
5744 * @ctxt: VSI context structure
5745 * @ch: ptr to channel structure
5747 * Setup queue map for a specific channel
5749 static void i40e_channel_setup_queue_map(struct i40e_pf
*pf
,
5750 struct i40e_vsi_context
*ctxt
,
5751 struct i40e_channel
*ch
)
5753 u16 qcount
, qmap
, sections
= 0;
5757 sections
= I40E_AQ_VSI_PROP_QUEUE_MAP_VALID
;
5758 sections
|= I40E_AQ_VSI_PROP_SCHED_VALID
;
5760 qcount
= min_t(int, ch
->num_queue_pairs
, pf
->num_lan_msix
);
5761 ch
->num_queue_pairs
= qcount
;
5763 /* find the next higher power-of-2 of num queue pairs */
5764 pow
= ilog2(qcount
);
5765 if (!is_power_of_2(qcount
))
5768 qmap
= (offset
<< I40E_AQ_VSI_TC_QUE_OFFSET_SHIFT
) |
5769 (pow
<< I40E_AQ_VSI_TC_QUE_NUMBER_SHIFT
);
5771 /* Setup queue TC[0].qmap for given VSI context */
5772 ctxt
->info
.tc_mapping
[0] = cpu_to_le16(qmap
);
5774 ctxt
->info
.up_enable_bits
= 0x1; /* TC0 enabled */
5775 ctxt
->info
.mapping_flags
|= cpu_to_le16(I40E_AQ_VSI_QUE_MAP_CONTIG
);
5776 ctxt
->info
.queue_mapping
[0] = cpu_to_le16(ch
->base_queue
);
5777 ctxt
->info
.valid_sections
|= cpu_to_le16(sections
);
5781 * i40e_add_channel - add a channel by adding VSI
5782 * @pf: ptr to PF device
5783 * @uplink_seid: underlying HW switching element (VEB) ID
5784 * @ch: ptr to channel structure
5786 * Add a channel (VSI) using add_vsi and queue_map
5788 static int i40e_add_channel(struct i40e_pf
*pf
, u16 uplink_seid
,
5789 struct i40e_channel
*ch
)
5791 struct i40e_hw
*hw
= &pf
->hw
;
5792 struct i40e_vsi_context ctxt
;
5793 u8 enabled_tc
= 0x1; /* TC0 enabled */
5796 if (ch
->type
!= I40E_VSI_VMDQ2
) {
5797 dev_info(&pf
->pdev
->dev
,
5798 "add new vsi failed, ch->type %d\n", ch
->type
);
5802 memset(&ctxt
, 0, sizeof(ctxt
));
5803 ctxt
.pf_num
= hw
->pf_id
;
5805 ctxt
.uplink_seid
= uplink_seid
;
5806 ctxt
.connection_type
= I40E_AQ_VSI_CONN_TYPE_NORMAL
;
5807 if (ch
->type
== I40E_VSI_VMDQ2
)
5808 ctxt
.flags
= I40E_AQ_VSI_TYPE_VMDQ2
;
5810 if (pf
->flags
& I40E_FLAG_VEB_MODE_ENABLED
) {
5811 ctxt
.info
.valid_sections
|=
5812 cpu_to_le16(I40E_AQ_VSI_PROP_SWITCH_VALID
);
5813 ctxt
.info
.switch_id
=
5814 cpu_to_le16(I40E_AQ_VSI_SW_ID_FLAG_ALLOW_LB
);
5817 /* Set queue map for a given VSI context */
5818 i40e_channel_setup_queue_map(pf
, &ctxt
, ch
);
5820 /* Now time to create VSI */
5821 ret
= i40e_aq_add_vsi(hw
, &ctxt
, NULL
);
5823 dev_info(&pf
->pdev
->dev
,
5824 "add new vsi failed, err %s aq_err %s\n",
5825 i40e_stat_str(&pf
->hw
, ret
),
5826 i40e_aq_str(&pf
->hw
,
5827 pf
->hw
.aq
.asq_last_status
));
5831 /* Success, update channel */
5832 ch
->enabled_tc
= enabled_tc
;
5833 ch
->seid
= ctxt
.seid
;
5834 ch
->vsi_number
= ctxt
.vsi_number
;
5835 ch
->stat_counter_idx
= cpu_to_le16(ctxt
.info
.stat_counter_idx
);
5837 /* copy just the sections touched not the entire info
5838 * since not all sections are valid as returned by
5841 ch
->info
.mapping_flags
= ctxt
.info
.mapping_flags
;
5842 memcpy(&ch
->info
.queue_mapping
,
5843 &ctxt
.info
.queue_mapping
, sizeof(ctxt
.info
.queue_mapping
));
5844 memcpy(&ch
->info
.tc_mapping
, ctxt
.info
.tc_mapping
,
5845 sizeof(ctxt
.info
.tc_mapping
));
5850 static int i40e_channel_config_bw(struct i40e_vsi
*vsi
, struct i40e_channel
*ch
,
5853 struct i40e_aqc_configure_vsi_tc_bw_data bw_data
;
5857 bw_data
.tc_valid_bits
= ch
->enabled_tc
;
5858 for (i
= 0; i
< I40E_MAX_TRAFFIC_CLASS
; i
++)
5859 bw_data
.tc_bw_credits
[i
] = bw_share
[i
];
5861 ret
= i40e_aq_config_vsi_tc_bw(&vsi
->back
->hw
, ch
->seid
,
5864 dev_info(&vsi
->back
->pdev
->dev
,
5865 "Config VSI BW allocation per TC failed, aq_err: %d for new_vsi->seid %u\n",
5866 vsi
->back
->hw
.aq
.asq_last_status
, ch
->seid
);
5870 for (i
= 0; i
< I40E_MAX_TRAFFIC_CLASS
; i
++)
5871 ch
->info
.qs_handle
[i
] = bw_data
.qs_handles
[i
];
5877 * i40e_channel_config_tx_ring - config TX ring associated with new channel
5878 * @pf: ptr to PF device
5879 * @vsi: the VSI being setup
5880 * @ch: ptr to channel structure
5882 * Configure TX rings associated with channel (VSI) since queues are being
5885 static int i40e_channel_config_tx_ring(struct i40e_pf
*pf
,
5886 struct i40e_vsi
*vsi
,
5887 struct i40e_channel
*ch
)
5891 u8 bw_share
[I40E_MAX_TRAFFIC_CLASS
] = {0};
5893 /* Enable ETS TCs with equal BW Share for now across all VSIs */
5894 for (i
= 0; i
< I40E_MAX_TRAFFIC_CLASS
; i
++) {
5895 if (ch
->enabled_tc
& BIT(i
))
5899 /* configure BW for new VSI */
5900 ret
= i40e_channel_config_bw(vsi
, ch
, bw_share
);
5902 dev_info(&vsi
->back
->pdev
->dev
,
5903 "Failed configuring TC map %d for channel (seid %u)\n",
5904 ch
->enabled_tc
, ch
->seid
);
5908 for (i
= 0; i
< ch
->num_queue_pairs
; i
++) {
5909 struct i40e_ring
*tx_ring
, *rx_ring
;
5912 pf_q
= ch
->base_queue
+ i
;
5914 /* Get to TX ring ptr of main VSI, for re-setup TX queue
5917 tx_ring
= vsi
->tx_rings
[pf_q
];
5920 /* Get the RX ring ptr */
5921 rx_ring
= vsi
->rx_rings
[pf_q
];
5929 * i40e_setup_hw_channel - setup new channel
5930 * @pf: ptr to PF device
5931 * @vsi: the VSI being setup
5932 * @ch: ptr to channel structure
5933 * @uplink_seid: underlying HW switching element (VEB) ID
5934 * @type: type of channel to be created (VMDq2/VF)
5936 * Setup new channel (VSI) based on specified type (VMDq2/VF)
5937 * and configures TX rings accordingly
5939 static inline int i40e_setup_hw_channel(struct i40e_pf
*pf
,
5940 struct i40e_vsi
*vsi
,
5941 struct i40e_channel
*ch
,
5942 u16 uplink_seid
, u8 type
)
5946 ch
->initialized
= false;
5947 ch
->base_queue
= vsi
->next_base_queue
;
5950 /* Proceed with creation of channel (VMDq2) VSI */
5951 ret
= i40e_add_channel(pf
, uplink_seid
, ch
);
5953 dev_info(&pf
->pdev
->dev
,
5954 "failed to add_channel using uplink_seid %u\n",
5959 /* Mark the successful creation of channel */
5960 ch
->initialized
= true;
5962 /* Reconfigure TX queues using QTX_CTL register */
5963 ret
= i40e_channel_config_tx_ring(pf
, vsi
, ch
);
5965 dev_info(&pf
->pdev
->dev
,
5966 "failed to configure TX rings for channel %u\n",
5971 /* update 'next_base_queue' */
5972 vsi
->next_base_queue
= vsi
->next_base_queue
+ ch
->num_queue_pairs
;
5973 dev_dbg(&pf
->pdev
->dev
,
5974 "Added channel: vsi_seid %u, vsi_number %u, stat_counter_idx %u, num_queue_pairs %u, pf->next_base_queue %d\n",
5975 ch
->seid
, ch
->vsi_number
, ch
->stat_counter_idx
,
5976 ch
->num_queue_pairs
,
5977 vsi
->next_base_queue
);
5982 * i40e_setup_channel - setup new channel using uplink element
5983 * @pf: ptr to PF device
5984 * @type: type of channel to be created (VMDq2/VF)
5985 * @uplink_seid: underlying HW switching element (VEB) ID
5986 * @ch: ptr to channel structure
5988 * Setup new channel (VSI) based on specified type (VMDq2/VF)
5989 * and uplink switching element (uplink_seid)
5991 static bool i40e_setup_channel(struct i40e_pf
*pf
, struct i40e_vsi
*vsi
,
5992 struct i40e_channel
*ch
)
5998 if (vsi
->type
== I40E_VSI_MAIN
) {
5999 vsi_type
= I40E_VSI_VMDQ2
;
6001 dev_err(&pf
->pdev
->dev
, "unsupported parent vsi type(%d)\n",
6006 /* underlying switching element */
6007 seid
= pf
->vsi
[pf
->lan_vsi
]->uplink_seid
;
6009 /* create channel (VSI), configure TX rings */
6010 ret
= i40e_setup_hw_channel(pf
, vsi
, ch
, seid
, vsi_type
);
6012 dev_err(&pf
->pdev
->dev
, "failed to setup hw_channel\n");
6016 return ch
->initialized
? true : false;
6020 * i40e_validate_and_set_switch_mode - sets up switch mode correctly
6021 * @vsi: ptr to VSI which has PF backing
6023 * Sets up switch mode correctly if it needs to be changed and perform
6024 * what are allowed modes.
6026 static int i40e_validate_and_set_switch_mode(struct i40e_vsi
*vsi
)
6029 struct i40e_pf
*pf
= vsi
->back
;
6030 struct i40e_hw
*hw
= &pf
->hw
;
6033 ret
= i40e_get_capabilities(pf
, i40e_aqc_opc_list_dev_capabilities
);
6037 if (hw
->dev_caps
.switch_mode
) {
6038 /* if switch mode is set, support mode2 (non-tunneled for
6039 * cloud filter) for now
6041 u32 switch_mode
= hw
->dev_caps
.switch_mode
&
6042 I40E_SWITCH_MODE_MASK
;
6043 if (switch_mode
>= I40E_CLOUD_FILTER_MODE1
) {
6044 if (switch_mode
== I40E_CLOUD_FILTER_MODE2
)
6046 dev_err(&pf
->pdev
->dev
,
6047 "Invalid switch_mode (%d), only non-tunneled mode for cloud filter is supported\n",
6048 hw
->dev_caps
.switch_mode
);
6053 /* Set Bit 7 to be valid */
6054 mode
= I40E_AQ_SET_SWITCH_BIT7_VALID
;
6056 /* Set L4type for TCP support */
6057 mode
|= I40E_AQ_SET_SWITCH_L4_TYPE_TCP
;
6059 /* Set cloud filter mode */
6060 mode
|= I40E_AQ_SET_SWITCH_MODE_NON_TUNNEL
;
6062 /* Prep mode field for set_switch_config */
6063 ret
= i40e_aq_set_switch_config(hw
, pf
->last_sw_conf_flags
,
6064 pf
->last_sw_conf_valid_flags
,
6066 if (ret
&& hw
->aq
.asq_last_status
!= I40E_AQ_RC_ESRCH
)
6067 dev_err(&pf
->pdev
->dev
,
6068 "couldn't set switch config bits, err %s aq_err %s\n",
6069 i40e_stat_str(hw
, ret
),
6071 hw
->aq
.asq_last_status
));
6077 * i40e_create_queue_channel - function to create channel
6078 * @vsi: VSI to be configured
6079 * @ch: ptr to channel (it contains channel specific params)
6081 * This function creates channel (VSI) using num_queues specified by user,
6082 * reconfigs RSS if needed.
6084 int i40e_create_queue_channel(struct i40e_vsi
*vsi
,
6085 struct i40e_channel
*ch
)
6087 struct i40e_pf
*pf
= vsi
->back
;
6094 if (!ch
->num_queue_pairs
) {
6095 dev_err(&pf
->pdev
->dev
, "Invalid num_queues requested: %d\n",
6096 ch
->num_queue_pairs
);
6100 /* validate user requested num_queues for channel */
6101 err
= i40e_validate_num_queues(pf
, ch
->num_queue_pairs
, vsi
,
6104 dev_info(&pf
->pdev
->dev
, "Failed to validate num_queues (%d)\n",
6105 ch
->num_queue_pairs
);
6109 /* By default we are in VEPA mode, if this is the first VF/VMDq
6110 * VSI to be added switch to VEB mode.
6112 if ((!(pf
->flags
& I40E_FLAG_VEB_MODE_ENABLED
)) ||
6113 (!i40e_is_any_channel(vsi
))) {
6114 if (!is_power_of_2(vsi
->tc_config
.tc_info
[0].qcount
)) {
6115 dev_dbg(&pf
->pdev
->dev
,
6116 "Failed to create channel. Override queues (%u) not power of 2\n",
6117 vsi
->tc_config
.tc_info
[0].qcount
);
6121 if (!(pf
->flags
& I40E_FLAG_VEB_MODE_ENABLED
)) {
6122 pf
->flags
|= I40E_FLAG_VEB_MODE_ENABLED
;
6124 if (vsi
->type
== I40E_VSI_MAIN
) {
6125 if (pf
->flags
& I40E_FLAG_TC_MQPRIO
)
6126 i40e_do_reset(pf
, I40E_PF_RESET_FLAG
,
6129 i40e_do_reset_safe(pf
,
6130 I40E_PF_RESET_FLAG
);
6133 /* now onwards for main VSI, number of queues will be value
6134 * of TC0's queue count
6138 /* By this time, vsi->cnt_q_avail shall be set to non-zero and
6139 * it should be more than num_queues
6141 if (!vsi
->cnt_q_avail
|| vsi
->cnt_q_avail
< ch
->num_queue_pairs
) {
6142 dev_dbg(&pf
->pdev
->dev
,
6143 "Error: cnt_q_avail (%u) less than num_queues %d\n",
6144 vsi
->cnt_q_avail
, ch
->num_queue_pairs
);
6148 /* reconfig_rss only if vsi type is MAIN_VSI */
6149 if (reconfig_rss
&& (vsi
->type
== I40E_VSI_MAIN
)) {
6150 err
= i40e_vsi_reconfig_rss(vsi
, ch
->num_queue_pairs
);
6152 dev_info(&pf
->pdev
->dev
,
6153 "Error: unable to reconfig rss for num_queues (%u)\n",
6154 ch
->num_queue_pairs
);
6159 if (!i40e_setup_channel(pf
, vsi
, ch
)) {
6160 dev_info(&pf
->pdev
->dev
, "Failed to setup channel\n");
6164 dev_info(&pf
->pdev
->dev
,
6165 "Setup channel (id:%u) utilizing num_queues %d\n",
6166 ch
->seid
, ch
->num_queue_pairs
);
6168 /* configure VSI for BW limit */
6169 if (ch
->max_tx_rate
) {
6170 u64 credits
= ch
->max_tx_rate
;
6172 if (i40e_set_bw_limit(vsi
, ch
->seid
, ch
->max_tx_rate
))
6175 do_div(credits
, I40E_BW_CREDIT_DIVISOR
);
6176 dev_dbg(&pf
->pdev
->dev
,
6177 "Set tx rate of %llu Mbps (count of 50Mbps %llu) for vsi->seid %u\n",
6183 /* in case of VF, this will be main SRIOV VSI */
6184 ch
->parent_vsi
= vsi
;
6186 /* and update main_vsi's count for queue_available to use */
6187 vsi
->cnt_q_avail
-= ch
->num_queue_pairs
;
6193 * i40e_configure_queue_channels - Add queue channel for the given TCs
6194 * @vsi: VSI to be configured
6196 * Configures queue channel mapping to the given TCs
6198 static int i40e_configure_queue_channels(struct i40e_vsi
*vsi
)
6200 struct i40e_channel
*ch
;
6204 /* Create app vsi with the TCs. Main VSI with TC0 is already set up */
6205 vsi
->tc_seid_map
[0] = vsi
->seid
;
6206 for (i
= 1; i
< I40E_MAX_TRAFFIC_CLASS
; i
++) {
6207 if (vsi
->tc_config
.enabled_tc
& BIT(i
)) {
6208 ch
= kzalloc(sizeof(*ch
), GFP_KERNEL
);
6214 INIT_LIST_HEAD(&ch
->list
);
6215 ch
->num_queue_pairs
=
6216 vsi
->tc_config
.tc_info
[i
].qcount
;
6218 vsi
->tc_config
.tc_info
[i
].qoffset
;
6220 /* Bandwidth limit through tc interface is in bytes/s,
6223 max_rate
= vsi
->mqprio_qopt
.max_rate
[i
];
6224 do_div(max_rate
, I40E_BW_MBPS_DIVISOR
);
6225 ch
->max_tx_rate
= max_rate
;
6227 list_add_tail(&ch
->list
, &vsi
->ch_list
);
6229 ret
= i40e_create_queue_channel(vsi
, ch
);
6231 dev_err(&vsi
->back
->pdev
->dev
,
6232 "Failed creating queue channel with TC%d: queues %d\n",
6233 i
, ch
->num_queue_pairs
);
6236 vsi
->tc_seid_map
[i
] = ch
->seid
;
6242 i40e_remove_queue_channels(vsi
);
6247 * i40e_veb_config_tc - Configure TCs for given VEB
6249 * @enabled_tc: TC bitmap
6251 * Configures given TC bitmap for VEB (switching) element
6253 int i40e_veb_config_tc(struct i40e_veb
*veb
, u8 enabled_tc
)
6255 struct i40e_aqc_configure_switching_comp_bw_config_data bw_data
= {0};
6256 struct i40e_pf
*pf
= veb
->pf
;
6260 /* No TCs or already enabled TCs just return */
6261 if (!enabled_tc
|| veb
->enabled_tc
== enabled_tc
)
6264 bw_data
.tc_valid_bits
= enabled_tc
;
6265 /* bw_data.absolute_credits is not set (relative) */
6267 /* Enable ETS TCs with equal BW Share for now */
6268 for (i
= 0; i
< I40E_MAX_TRAFFIC_CLASS
; i
++) {
6269 if (enabled_tc
& BIT(i
))
6270 bw_data
.tc_bw_share_credits
[i
] = 1;
6273 ret
= i40e_aq_config_switch_comp_bw_config(&pf
->hw
, veb
->seid
,
6276 dev_info(&pf
->pdev
->dev
,
6277 "VEB bw config failed, err %s aq_err %s\n",
6278 i40e_stat_str(&pf
->hw
, ret
),
6279 i40e_aq_str(&pf
->hw
, pf
->hw
.aq
.asq_last_status
));
6283 /* Update the BW information */
6284 ret
= i40e_veb_get_bw_info(veb
);
6286 dev_info(&pf
->pdev
->dev
,
6287 "Failed getting veb bw config, err %s aq_err %s\n",
6288 i40e_stat_str(&pf
->hw
, ret
),
6289 i40e_aq_str(&pf
->hw
, pf
->hw
.aq
.asq_last_status
));
6296 #ifdef CONFIG_I40E_DCB
6298 * i40e_dcb_reconfigure - Reconfigure all VEBs and VSIs
6301 * Reconfigure VEB/VSIs on a given PF; it is assumed that
6302 * the caller would've quiesce all the VSIs before calling
6305 static void i40e_dcb_reconfigure(struct i40e_pf
*pf
)
6311 /* Enable the TCs available on PF to all VEBs */
6312 tc_map
= i40e_pf_get_tc_map(pf
);
6313 for (v
= 0; v
< I40E_MAX_VEB
; v
++) {
6316 ret
= i40e_veb_config_tc(pf
->veb
[v
], tc_map
);
6318 dev_info(&pf
->pdev
->dev
,
6319 "Failed configuring TC for VEB seid=%d\n",
6321 /* Will try to configure as many components */
6325 /* Update each VSI */
6326 for (v
= 0; v
< pf
->num_alloc_vsi
; v
++) {
6330 /* - Enable all TCs for the LAN VSI
6331 * - For all others keep them at TC0 for now
6333 if (v
== pf
->lan_vsi
)
6334 tc_map
= i40e_pf_get_tc_map(pf
);
6336 tc_map
= I40E_DEFAULT_TRAFFIC_CLASS
;
6338 ret
= i40e_vsi_config_tc(pf
->vsi
[v
], tc_map
);
6340 dev_info(&pf
->pdev
->dev
,
6341 "Failed configuring TC for VSI seid=%d\n",
6343 /* Will try to configure as many components */
6345 /* Re-configure VSI vectors based on updated TC map */
6346 i40e_vsi_map_rings_to_vectors(pf
->vsi
[v
]);
6347 if (pf
->vsi
[v
]->netdev
)
6348 i40e_dcbnl_set_all(pf
->vsi
[v
]);
6354 * i40e_resume_port_tx - Resume port Tx
6357 * Resume a port's Tx and issue a PF reset in case of failure to
6360 static int i40e_resume_port_tx(struct i40e_pf
*pf
)
6362 struct i40e_hw
*hw
= &pf
->hw
;
6365 ret
= i40e_aq_resume_port_tx(hw
, NULL
);
6367 dev_info(&pf
->pdev
->dev
,
6368 "Resume Port Tx failed, err %s aq_err %s\n",
6369 i40e_stat_str(&pf
->hw
, ret
),
6370 i40e_aq_str(&pf
->hw
, pf
->hw
.aq
.asq_last_status
));
6371 /* Schedule PF reset to recover */
6372 set_bit(__I40E_PF_RESET_REQUESTED
, pf
->state
);
6373 i40e_service_event_schedule(pf
);
6380 * i40e_init_pf_dcb - Initialize DCB configuration
6381 * @pf: PF being configured
6383 * Query the current DCB configuration and cache it
6384 * in the hardware structure
6386 static int i40e_init_pf_dcb(struct i40e_pf
*pf
)
6388 struct i40e_hw
*hw
= &pf
->hw
;
6391 /* Do not enable DCB for SW1 and SW2 images even if the FW is capable */
6392 if (pf
->hw_features
& I40E_HW_NO_DCB_SUPPORT
)
6395 /* Get the initial DCB configuration */
6396 err
= i40e_init_dcb(hw
);
6398 /* Device/Function is not DCBX capable */
6399 if ((!hw
->func_caps
.dcb
) ||
6400 (hw
->dcbx_status
== I40E_DCBX_STATUS_DISABLED
)) {
6401 dev_info(&pf
->pdev
->dev
,
6402 "DCBX offload is not supported or is disabled for this PF.\n");
6404 /* When status is not DISABLED then DCBX in FW */
6405 pf
->dcbx_cap
= DCB_CAP_DCBX_LLD_MANAGED
|
6406 DCB_CAP_DCBX_VER_IEEE
;
6408 pf
->flags
|= I40E_FLAG_DCB_CAPABLE
;
6409 /* Enable DCB tagging only when more than one TC
6410 * or explicitly disable if only one TC
6412 if (i40e_dcb_get_num_tc(&hw
->local_dcbx_config
) > 1)
6413 pf
->flags
|= I40E_FLAG_DCB_ENABLED
;
6415 pf
->flags
&= ~I40E_FLAG_DCB_ENABLED
;
6416 dev_dbg(&pf
->pdev
->dev
,
6417 "DCBX offload is supported for this PF.\n");
6420 dev_info(&pf
->pdev
->dev
,
6421 "Query for DCB configuration failed, err %s aq_err %s\n",
6422 i40e_stat_str(&pf
->hw
, err
),
6423 i40e_aq_str(&pf
->hw
, pf
->hw
.aq
.asq_last_status
));
6429 #endif /* CONFIG_I40E_DCB */
6430 #define SPEED_SIZE 14
6433 * i40e_print_link_message - print link up or down
6434 * @vsi: the VSI for which link needs a message
6436 void i40e_print_link_message(struct i40e_vsi
*vsi
, bool isup
)
6438 enum i40e_aq_link_speed new_speed
;
6439 struct i40e_pf
*pf
= vsi
->back
;
6440 char *speed
= "Unknown";
6441 char *fc
= "Unknown";
6446 new_speed
= pf
->hw
.phy
.link_info
.link_speed
;
6448 if ((vsi
->current_isup
== isup
) && (vsi
->current_speed
== new_speed
))
6450 vsi
->current_isup
= isup
;
6451 vsi
->current_speed
= new_speed
;
6453 netdev_info(vsi
->netdev
, "NIC Link is Down\n");
6457 /* Warn user if link speed on NPAR enabled partition is not at
6460 if (pf
->hw
.func_caps
.npar_enable
&&
6461 (pf
->hw
.phy
.link_info
.link_speed
== I40E_LINK_SPEED_1GB
||
6462 pf
->hw
.phy
.link_info
.link_speed
== I40E_LINK_SPEED_100MB
))
6463 netdev_warn(vsi
->netdev
,
6464 "The partition detected link speed that is less than 10Gbps\n");
6466 switch (pf
->hw
.phy
.link_info
.link_speed
) {
6467 case I40E_LINK_SPEED_40GB
:
6470 case I40E_LINK_SPEED_20GB
:
6473 case I40E_LINK_SPEED_25GB
:
6476 case I40E_LINK_SPEED_10GB
:
6479 case I40E_LINK_SPEED_1GB
:
6482 case I40E_LINK_SPEED_100MB
:
6489 switch (pf
->hw
.fc
.current_mode
) {
6493 case I40E_FC_TX_PAUSE
:
6496 case I40E_FC_RX_PAUSE
:
6504 if (pf
->hw
.phy
.link_info
.link_speed
== I40E_LINK_SPEED_25GB
) {
6505 req_fec
= ", Requested FEC: None";
6506 fec
= ", FEC: None";
6507 an
= ", Autoneg: False";
6509 if (pf
->hw
.phy
.link_info
.an_info
& I40E_AQ_AN_COMPLETED
)
6510 an
= ", Autoneg: True";
6512 if (pf
->hw
.phy
.link_info
.fec_info
&
6513 I40E_AQ_CONFIG_FEC_KR_ENA
)
6514 fec
= ", FEC: CL74 FC-FEC/BASE-R";
6515 else if (pf
->hw
.phy
.link_info
.fec_info
&
6516 I40E_AQ_CONFIG_FEC_RS_ENA
)
6517 fec
= ", FEC: CL108 RS-FEC";
6519 /* 'CL108 RS-FEC' should be displayed when RS is requested, or
6520 * both RS and FC are requested
6522 if (vsi
->back
->hw
.phy
.link_info
.req_fec_info
&
6523 (I40E_AQ_REQUEST_FEC_KR
| I40E_AQ_REQUEST_FEC_RS
)) {
6524 if (vsi
->back
->hw
.phy
.link_info
.req_fec_info
&
6525 I40E_AQ_REQUEST_FEC_RS
)
6526 req_fec
= ", Requested FEC: CL108 RS-FEC";
6528 req_fec
= ", Requested FEC: CL74 FC-FEC/BASE-R";
6532 netdev_info(vsi
->netdev
, "NIC Link is Up, %sbps Full Duplex%s%s%s, Flow Control: %s\n",
6533 speed
, req_fec
, fec
, an
, fc
);
6537 * i40e_up_complete - Finish the last steps of bringing up a connection
6538 * @vsi: the VSI being configured
6540 static int i40e_up_complete(struct i40e_vsi
*vsi
)
6542 struct i40e_pf
*pf
= vsi
->back
;
6545 if (pf
->flags
& I40E_FLAG_MSIX_ENABLED
)
6546 i40e_vsi_configure_msix(vsi
);
6548 i40e_configure_msi_and_legacy(vsi
);
6551 err
= i40e_vsi_start_rings(vsi
);
6555 clear_bit(__I40E_VSI_DOWN
, vsi
->state
);
6556 i40e_napi_enable_all(vsi
);
6557 i40e_vsi_enable_irq(vsi
);
6559 if ((pf
->hw
.phy
.link_info
.link_info
& I40E_AQ_LINK_UP
) &&
6561 i40e_print_link_message(vsi
, true);
6562 netif_tx_start_all_queues(vsi
->netdev
);
6563 netif_carrier_on(vsi
->netdev
);
6566 /* replay FDIR SB filters */
6567 if (vsi
->type
== I40E_VSI_FDIR
) {
6568 /* reset fd counters */
6571 i40e_fdir_filter_restore(vsi
);
6574 /* On the next run of the service_task, notify any clients of the new
6577 pf
->flags
|= I40E_FLAG_SERVICE_CLIENT_REQUESTED
;
6578 i40e_service_event_schedule(pf
);
6584 * i40e_vsi_reinit_locked - Reset the VSI
6585 * @vsi: the VSI being configured
6587 * Rebuild the ring structs after some configuration
6588 * has changed, e.g. MTU size.
6590 static void i40e_vsi_reinit_locked(struct i40e_vsi
*vsi
)
6592 struct i40e_pf
*pf
= vsi
->back
;
6594 WARN_ON(in_interrupt());
6595 while (test_and_set_bit(__I40E_CONFIG_BUSY
, pf
->state
))
6596 usleep_range(1000, 2000);
6600 clear_bit(__I40E_CONFIG_BUSY
, pf
->state
);
6604 * i40e_up - Bring the connection back up after being down
6605 * @vsi: the VSI being configured
6607 int i40e_up(struct i40e_vsi
*vsi
)
6611 err
= i40e_vsi_configure(vsi
);
6613 err
= i40e_up_complete(vsi
);
6619 * i40e_down - Shutdown the connection processing
6620 * @vsi: the VSI being stopped
6622 void i40e_down(struct i40e_vsi
*vsi
)
6626 /* It is assumed that the caller of this function
6627 * sets the vsi->state __I40E_VSI_DOWN bit.
6630 netif_carrier_off(vsi
->netdev
);
6631 netif_tx_disable(vsi
->netdev
);
6633 i40e_vsi_disable_irq(vsi
);
6634 i40e_vsi_stop_rings(vsi
);
6635 i40e_napi_disable_all(vsi
);
6637 for (i
= 0; i
< vsi
->num_queue_pairs
; i
++) {
6638 i40e_clean_tx_ring(vsi
->tx_rings
[i
]);
6639 if (i40e_enabled_xdp_vsi(vsi
))
6640 i40e_clean_tx_ring(vsi
->xdp_rings
[i
]);
6641 i40e_clean_rx_ring(vsi
->rx_rings
[i
]);
6647 * i40e_validate_mqprio_qopt- validate queue mapping info
6648 * @vsi: the VSI being configured
6649 * @mqprio_qopt: queue parametrs
6651 static int i40e_validate_mqprio_qopt(struct i40e_vsi
*vsi
,
6652 struct tc_mqprio_qopt_offload
*mqprio_qopt
)
6654 u64 sum_max_rate
= 0;
6658 if (mqprio_qopt
->qopt
.offset
[0] != 0 ||
6659 mqprio_qopt
->qopt
.num_tc
< 1 ||
6660 mqprio_qopt
->qopt
.num_tc
> I40E_MAX_TRAFFIC_CLASS
)
6662 for (i
= 0; ; i
++) {
6663 if (!mqprio_qopt
->qopt
.count
[i
])
6665 if (mqprio_qopt
->min_rate
[i
]) {
6666 dev_err(&vsi
->back
->pdev
->dev
,
6667 "Invalid min tx rate (greater than 0) specified\n");
6670 max_rate
= mqprio_qopt
->max_rate
[i
];
6671 do_div(max_rate
, I40E_BW_MBPS_DIVISOR
);
6672 sum_max_rate
+= max_rate
;
6674 if (i
>= mqprio_qopt
->qopt
.num_tc
- 1)
6676 if (mqprio_qopt
->qopt
.offset
[i
+ 1] !=
6677 (mqprio_qopt
->qopt
.offset
[i
] + mqprio_qopt
->qopt
.count
[i
]))
6680 if (vsi
->num_queue_pairs
<
6681 (mqprio_qopt
->qopt
.offset
[i
] + mqprio_qopt
->qopt
.count
[i
])) {
6684 if (sum_max_rate
> i40e_get_link_speed(vsi
)) {
6685 dev_err(&vsi
->back
->pdev
->dev
,
6686 "Invalid max tx rate specified\n");
6693 * i40e_vsi_set_default_tc_config - set default values for tc configuration
6694 * @vsi: the VSI being configured
6696 static void i40e_vsi_set_default_tc_config(struct i40e_vsi
*vsi
)
6701 /* Only TC0 is enabled */
6702 vsi
->tc_config
.numtc
= 1;
6703 vsi
->tc_config
.enabled_tc
= 1;
6704 qcount
= min_t(int, vsi
->alloc_queue_pairs
,
6705 i40e_pf_get_max_q_per_tc(vsi
->back
));
6706 for (i
= 0; i
< I40E_MAX_TRAFFIC_CLASS
; i
++) {
6707 /* For the TC that is not enabled set the offset to to default
6708 * queue and allocate one queue for the given TC.
6710 vsi
->tc_config
.tc_info
[i
].qoffset
= 0;
6712 vsi
->tc_config
.tc_info
[i
].qcount
= qcount
;
6714 vsi
->tc_config
.tc_info
[i
].qcount
= 1;
6715 vsi
->tc_config
.tc_info
[i
].netdev_tc
= 0;
6720 * i40e_setup_tc - configure multiple traffic classes
6721 * @netdev: net device to configure
6722 * @type_data: tc offload data
6724 static int i40e_setup_tc(struct net_device
*netdev
, void *type_data
)
6726 struct tc_mqprio_qopt_offload
*mqprio_qopt
= type_data
;
6727 struct i40e_netdev_priv
*np
= netdev_priv(netdev
);
6728 struct i40e_vsi
*vsi
= np
->vsi
;
6729 struct i40e_pf
*pf
= vsi
->back
;
6730 u8 enabled_tc
= 0, num_tc
, hw
;
6731 bool need_reset
= false;
6736 num_tc
= mqprio_qopt
->qopt
.num_tc
;
6737 hw
= mqprio_qopt
->qopt
.hw
;
6738 mode
= mqprio_qopt
->mode
;
6740 pf
->flags
&= ~I40E_FLAG_TC_MQPRIO
;
6741 memcpy(&vsi
->mqprio_qopt
, mqprio_qopt
, sizeof(*mqprio_qopt
));
6745 /* Check if MFP enabled */
6746 if (pf
->flags
& I40E_FLAG_MFP_ENABLED
) {
6748 "Configuring TC not supported in MFP mode\n");
6752 case TC_MQPRIO_MODE_DCB
:
6753 pf
->flags
&= ~I40E_FLAG_TC_MQPRIO
;
6755 /* Check if DCB enabled to continue */
6756 if (!(pf
->flags
& I40E_FLAG_DCB_ENABLED
)) {
6758 "DCB is not enabled for adapter\n");
6762 /* Check whether tc count is within enabled limit */
6763 if (num_tc
> i40e_pf_get_num_tc(pf
)) {
6765 "TC count greater than enabled on link for adapter\n");
6769 case TC_MQPRIO_MODE_CHANNEL
:
6770 if (pf
->flags
& I40E_FLAG_DCB_ENABLED
) {
6772 "Full offload of TC Mqprio options is not supported when DCB is enabled\n");
6775 if (!(pf
->flags
& I40E_FLAG_MSIX_ENABLED
))
6777 ret
= i40e_validate_mqprio_qopt(vsi
, mqprio_qopt
);
6780 memcpy(&vsi
->mqprio_qopt
, mqprio_qopt
,
6781 sizeof(*mqprio_qopt
));
6782 pf
->flags
|= I40E_FLAG_TC_MQPRIO
;
6783 pf
->flags
&= ~I40E_FLAG_DCB_ENABLED
;
6790 /* Generate TC map for number of tc requested */
6791 for (i
= 0; i
< num_tc
; i
++)
6792 enabled_tc
|= BIT(i
);
6794 /* Requesting same TC configuration as already enabled */
6795 if (enabled_tc
== vsi
->tc_config
.enabled_tc
&&
6796 mode
!= TC_MQPRIO_MODE_CHANNEL
)
6799 /* Quiesce VSI queues */
6800 i40e_quiesce_vsi(vsi
);
6802 if (!hw
&& !(pf
->flags
& I40E_FLAG_TC_MQPRIO
))
6803 i40e_remove_queue_channels(vsi
);
6805 /* Configure VSI for enabled TCs */
6806 ret
= i40e_vsi_config_tc(vsi
, enabled_tc
);
6808 netdev_info(netdev
, "Failed configuring TC for VSI seid=%d\n",
6814 if (pf
->flags
& I40E_FLAG_TC_MQPRIO
) {
6815 if (vsi
->mqprio_qopt
.max_rate
[0]) {
6816 u64 max_tx_rate
= vsi
->mqprio_qopt
.max_rate
[0];
6818 do_div(max_tx_rate
, I40E_BW_MBPS_DIVISOR
);
6819 ret
= i40e_set_bw_limit(vsi
, vsi
->seid
, max_tx_rate
);
6821 u64 credits
= max_tx_rate
;
6823 do_div(credits
, I40E_BW_CREDIT_DIVISOR
);
6824 dev_dbg(&vsi
->back
->pdev
->dev
,
6825 "Set tx rate of %llu Mbps (count of 50Mbps %llu) for vsi->seid %u\n",
6834 ret
= i40e_configure_queue_channels(vsi
);
6837 "Failed configuring queue channels\n");
6844 /* Reset the configuration data to defaults, only TC0 is enabled */
6846 i40e_vsi_set_default_tc_config(vsi
);
6851 i40e_unquiesce_vsi(vsi
);
6856 * i40e_set_cld_element - sets cloud filter element data
6857 * @filter: cloud filter rule
6858 * @cld: ptr to cloud filter element data
6860 * This is helper function to copy data into cloud filter element
6863 i40e_set_cld_element(struct i40e_cloud_filter
*filter
,
6864 struct i40e_aqc_cloud_filters_element_data
*cld
)
6869 memset(cld
, 0, sizeof(*cld
));
6870 ether_addr_copy(cld
->outer_mac
, filter
->dst_mac
);
6871 ether_addr_copy(cld
->inner_mac
, filter
->src_mac
);
6873 if (filter
->n_proto
!= ETH_P_IP
&& filter
->n_proto
!= ETH_P_IPV6
)
6876 if (filter
->n_proto
== ETH_P_IPV6
) {
6877 #define IPV6_MAX_INDEX (ARRAY_SIZE(filter->dst_ipv6) - 1)
6878 for (i
= 0, j
= 0; i
< ARRAY_SIZE(filter
->dst_ipv6
);
6880 ipa
= be32_to_cpu(filter
->dst_ipv6
[IPV6_MAX_INDEX
- i
]);
6881 ipa
= cpu_to_le32(ipa
);
6882 memcpy(&cld
->ipaddr
.raw_v6
.data
[j
], &ipa
, sizeof(ipa
));
6885 ipa
= be32_to_cpu(filter
->dst_ipv4
);
6886 memcpy(&cld
->ipaddr
.v4
.data
, &ipa
, sizeof(ipa
));
6889 cld
->inner_vlan
= cpu_to_le16(ntohs(filter
->vlan_id
));
6891 /* tenant_id is not supported by FW now, once the support is enabled
6892 * fill the cld->tenant_id with cpu_to_le32(filter->tenant_id)
6894 if (filter
->tenant_id
)
6899 * i40e_add_del_cloud_filter - Add/del cloud filter
6900 * @vsi: pointer to VSI
6901 * @filter: cloud filter rule
6902 * @add: if true, add, if false, delete
6904 * Add or delete a cloud filter for a specific flow spec.
6905 * Returns 0 if the filter were successfully added.
6907 static int i40e_add_del_cloud_filter(struct i40e_vsi
*vsi
,
6908 struct i40e_cloud_filter
*filter
, bool add
)
6910 struct i40e_aqc_cloud_filters_element_data cld_filter
;
6911 struct i40e_pf
*pf
= vsi
->back
;
6913 static const u16 flag_table
[128] = {
6914 [I40E_CLOUD_FILTER_FLAGS_OMAC
] =
6915 I40E_AQC_ADD_CLOUD_FILTER_OMAC
,
6916 [I40E_CLOUD_FILTER_FLAGS_IMAC
] =
6917 I40E_AQC_ADD_CLOUD_FILTER_IMAC
,
6918 [I40E_CLOUD_FILTER_FLAGS_IMAC_IVLAN
] =
6919 I40E_AQC_ADD_CLOUD_FILTER_IMAC_IVLAN
,
6920 [I40E_CLOUD_FILTER_FLAGS_IMAC_TEN_ID
] =
6921 I40E_AQC_ADD_CLOUD_FILTER_IMAC_TEN_ID
,
6922 [I40E_CLOUD_FILTER_FLAGS_OMAC_TEN_ID_IMAC
] =
6923 I40E_AQC_ADD_CLOUD_FILTER_OMAC_TEN_ID_IMAC
,
6924 [I40E_CLOUD_FILTER_FLAGS_IMAC_IVLAN_TEN_ID
] =
6925 I40E_AQC_ADD_CLOUD_FILTER_IMAC_IVLAN_TEN_ID
,
6926 [I40E_CLOUD_FILTER_FLAGS_IIP
] =
6927 I40E_AQC_ADD_CLOUD_FILTER_IIP
,
6930 if (filter
->flags
>= ARRAY_SIZE(flag_table
))
6931 return I40E_ERR_CONFIG
;
6933 /* copy element needed to add cloud filter from filter */
6934 i40e_set_cld_element(filter
, &cld_filter
);
6936 if (filter
->tunnel_type
!= I40E_CLOUD_TNL_TYPE_NONE
)
6937 cld_filter
.flags
= cpu_to_le16(filter
->tunnel_type
<<
6938 I40E_AQC_ADD_CLOUD_TNL_TYPE_SHIFT
);
6940 if (filter
->n_proto
== ETH_P_IPV6
)
6941 cld_filter
.flags
|= cpu_to_le16(flag_table
[filter
->flags
] |
6942 I40E_AQC_ADD_CLOUD_FLAGS_IPV6
);
6944 cld_filter
.flags
|= cpu_to_le16(flag_table
[filter
->flags
] |
6945 I40E_AQC_ADD_CLOUD_FLAGS_IPV4
);
6948 ret
= i40e_aq_add_cloud_filters(&pf
->hw
, filter
->seid
,
6951 ret
= i40e_aq_rem_cloud_filters(&pf
->hw
, filter
->seid
,
6954 dev_dbg(&pf
->pdev
->dev
,
6955 "Failed to %s cloud filter using l4 port %u, err %d aq_err %d\n",
6956 add
? "add" : "delete", filter
->dst_port
, ret
,
6957 pf
->hw
.aq
.asq_last_status
);
6959 dev_info(&pf
->pdev
->dev
,
6960 "%s cloud filter for VSI: %d\n",
6961 add
? "Added" : "Deleted", filter
->seid
);
6966 * i40e_add_del_cloud_filter_big_buf - Add/del cloud filter using big_buf
6967 * @vsi: pointer to VSI
6968 * @filter: cloud filter rule
6969 * @add: if true, add, if false, delete
6971 * Add or delete a cloud filter for a specific flow spec using big buffer.
6972 * Returns 0 if the filter were successfully added.
6974 static int i40e_add_del_cloud_filter_big_buf(struct i40e_vsi
*vsi
,
6975 struct i40e_cloud_filter
*filter
,
6978 struct i40e_aqc_cloud_filters_element_bb cld_filter
;
6979 struct i40e_pf
*pf
= vsi
->back
;
6982 /* Both (src/dst) valid mac_addr are not supported */
6983 if ((is_valid_ether_addr(filter
->dst_mac
) &&
6984 is_valid_ether_addr(filter
->src_mac
)) ||
6985 (is_multicast_ether_addr(filter
->dst_mac
) &&
6986 is_multicast_ether_addr(filter
->src_mac
)))
6989 /* Big buffer cloud filter needs 'L4 port' to be non-zero. Also, UDP
6990 * ports are not supported via big buffer now.
6992 if (!filter
->dst_port
|| filter
->ip_proto
== IPPROTO_UDP
)
6995 /* adding filter using src_port/src_ip is not supported at this stage */
6996 if (filter
->src_port
|| filter
->src_ipv4
||
6997 !ipv6_addr_any(&filter
->ip
.v6
.src_ip6
))
7000 /* copy element needed to add cloud filter from filter */
7001 i40e_set_cld_element(filter
, &cld_filter
.element
);
7003 if (is_valid_ether_addr(filter
->dst_mac
) ||
7004 is_valid_ether_addr(filter
->src_mac
) ||
7005 is_multicast_ether_addr(filter
->dst_mac
) ||
7006 is_multicast_ether_addr(filter
->src_mac
)) {
7007 /* MAC + IP : unsupported mode */
7008 if (filter
->dst_ipv4
)
7011 /* since we validated that L4 port must be valid before
7012 * we get here, start with respective "flags" value
7013 * and update if vlan is present or not
7015 cld_filter
.element
.flags
=
7016 cpu_to_le16(I40E_AQC_ADD_CLOUD_FILTER_MAC_PORT
);
7018 if (filter
->vlan_id
) {
7019 cld_filter
.element
.flags
=
7020 cpu_to_le16(I40E_AQC_ADD_CLOUD_FILTER_MAC_VLAN_PORT
);
7023 } else if (filter
->dst_ipv4
||
7024 !ipv6_addr_any(&filter
->ip
.v6
.dst_ip6
)) {
7025 cld_filter
.element
.flags
=
7026 cpu_to_le16(I40E_AQC_ADD_CLOUD_FILTER_IP_PORT
);
7027 if (filter
->n_proto
== ETH_P_IPV6
)
7028 cld_filter
.element
.flags
|=
7029 cpu_to_le16(I40E_AQC_ADD_CLOUD_FLAGS_IPV6
);
7031 cld_filter
.element
.flags
|=
7032 cpu_to_le16(I40E_AQC_ADD_CLOUD_FLAGS_IPV4
);
7034 dev_err(&pf
->pdev
->dev
,
7035 "either mac or ip has to be valid for cloud filter\n");
7039 /* Now copy L4 port in Byte 6..7 in general fields */
7040 cld_filter
.general_fields
[I40E_AQC_ADD_CLOUD_FV_FLU_0X16_WORD0
] =
7041 be16_to_cpu(filter
->dst_port
);
7044 /* Validate current device switch mode, change if necessary */
7045 ret
= i40e_validate_and_set_switch_mode(vsi
);
7047 dev_err(&pf
->pdev
->dev
,
7048 "failed to set switch mode, ret %d\n",
7053 ret
= i40e_aq_add_cloud_filters_bb(&pf
->hw
, filter
->seid
,
7056 ret
= i40e_aq_rem_cloud_filters_bb(&pf
->hw
, filter
->seid
,
7061 dev_dbg(&pf
->pdev
->dev
,
7062 "Failed to %s cloud filter(big buffer) err %d aq_err %d\n",
7063 add
? "add" : "delete", ret
, pf
->hw
.aq
.asq_last_status
);
7065 dev_info(&pf
->pdev
->dev
,
7066 "%s cloud filter for VSI: %d, L4 port: %d\n",
7067 add
? "add" : "delete", filter
->seid
,
7068 ntohs(filter
->dst_port
));
7073 * i40e_parse_cls_flower - Parse tc flower filters provided by kernel
7074 * @vsi: Pointer to VSI
7075 * @cls_flower: Pointer to struct tc_cls_flower_offload
7076 * @filter: Pointer to cloud filter structure
7079 static int i40e_parse_cls_flower(struct i40e_vsi
*vsi
,
7080 struct tc_cls_flower_offload
*f
,
7081 struct i40e_cloud_filter
*filter
)
7083 u16 n_proto_mask
= 0, n_proto_key
= 0, addr_type
= 0;
7084 struct i40e_pf
*pf
= vsi
->back
;
7087 if (f
->dissector
->used_keys
&
7088 ~(BIT(FLOW_DISSECTOR_KEY_CONTROL
) |
7089 BIT(FLOW_DISSECTOR_KEY_BASIC
) |
7090 BIT(FLOW_DISSECTOR_KEY_ETH_ADDRS
) |
7091 BIT(FLOW_DISSECTOR_KEY_VLAN
) |
7092 BIT(FLOW_DISSECTOR_KEY_IPV4_ADDRS
) |
7093 BIT(FLOW_DISSECTOR_KEY_IPV6_ADDRS
) |
7094 BIT(FLOW_DISSECTOR_KEY_PORTS
) |
7095 BIT(FLOW_DISSECTOR_KEY_ENC_KEYID
))) {
7096 dev_err(&pf
->pdev
->dev
, "Unsupported key used: 0x%x\n",
7097 f
->dissector
->used_keys
);
7101 if (dissector_uses_key(f
->dissector
, FLOW_DISSECTOR_KEY_ENC_KEYID
)) {
7102 struct flow_dissector_key_keyid
*key
=
7103 skb_flow_dissector_target(f
->dissector
,
7104 FLOW_DISSECTOR_KEY_ENC_KEYID
,
7107 struct flow_dissector_key_keyid
*mask
=
7108 skb_flow_dissector_target(f
->dissector
,
7109 FLOW_DISSECTOR_KEY_ENC_KEYID
,
7112 if (mask
->keyid
!= 0)
7113 field_flags
|= I40E_CLOUD_FIELD_TEN_ID
;
7115 filter
->tenant_id
= be32_to_cpu(key
->keyid
);
7118 if (dissector_uses_key(f
->dissector
, FLOW_DISSECTOR_KEY_BASIC
)) {
7119 struct flow_dissector_key_basic
*key
=
7120 skb_flow_dissector_target(f
->dissector
,
7121 FLOW_DISSECTOR_KEY_BASIC
,
7124 struct flow_dissector_key_basic
*mask
=
7125 skb_flow_dissector_target(f
->dissector
,
7126 FLOW_DISSECTOR_KEY_BASIC
,
7129 n_proto_key
= ntohs(key
->n_proto
);
7130 n_proto_mask
= ntohs(mask
->n_proto
);
7132 if (n_proto_key
== ETH_P_ALL
) {
7136 filter
->n_proto
= n_proto_key
& n_proto_mask
;
7137 filter
->ip_proto
= key
->ip_proto
;
7140 if (dissector_uses_key(f
->dissector
, FLOW_DISSECTOR_KEY_ETH_ADDRS
)) {
7141 struct flow_dissector_key_eth_addrs
*key
=
7142 skb_flow_dissector_target(f
->dissector
,
7143 FLOW_DISSECTOR_KEY_ETH_ADDRS
,
7146 struct flow_dissector_key_eth_addrs
*mask
=
7147 skb_flow_dissector_target(f
->dissector
,
7148 FLOW_DISSECTOR_KEY_ETH_ADDRS
,
7151 /* use is_broadcast and is_zero to check for all 0xf or 0 */
7152 if (!is_zero_ether_addr(mask
->dst
)) {
7153 if (is_broadcast_ether_addr(mask
->dst
)) {
7154 field_flags
|= I40E_CLOUD_FIELD_OMAC
;
7156 dev_err(&pf
->pdev
->dev
, "Bad ether dest mask %pM\n",
7158 return I40E_ERR_CONFIG
;
7162 if (!is_zero_ether_addr(mask
->src
)) {
7163 if (is_broadcast_ether_addr(mask
->src
)) {
7164 field_flags
|= I40E_CLOUD_FIELD_IMAC
;
7166 dev_err(&pf
->pdev
->dev
, "Bad ether src mask %pM\n",
7168 return I40E_ERR_CONFIG
;
7171 ether_addr_copy(filter
->dst_mac
, key
->dst
);
7172 ether_addr_copy(filter
->src_mac
, key
->src
);
7175 if (dissector_uses_key(f
->dissector
, FLOW_DISSECTOR_KEY_VLAN
)) {
7176 struct flow_dissector_key_vlan
*key
=
7177 skb_flow_dissector_target(f
->dissector
,
7178 FLOW_DISSECTOR_KEY_VLAN
,
7180 struct flow_dissector_key_vlan
*mask
=
7181 skb_flow_dissector_target(f
->dissector
,
7182 FLOW_DISSECTOR_KEY_VLAN
,
7185 if (mask
->vlan_id
) {
7186 if (mask
->vlan_id
== VLAN_VID_MASK
) {
7187 field_flags
|= I40E_CLOUD_FIELD_IVLAN
;
7190 dev_err(&pf
->pdev
->dev
, "Bad vlan mask 0x%04x\n",
7192 return I40E_ERR_CONFIG
;
7196 filter
->vlan_id
= cpu_to_be16(key
->vlan_id
);
7199 if (dissector_uses_key(f
->dissector
, FLOW_DISSECTOR_KEY_CONTROL
)) {
7200 struct flow_dissector_key_control
*key
=
7201 skb_flow_dissector_target(f
->dissector
,
7202 FLOW_DISSECTOR_KEY_CONTROL
,
7205 addr_type
= key
->addr_type
;
7208 if (addr_type
== FLOW_DISSECTOR_KEY_IPV4_ADDRS
) {
7209 struct flow_dissector_key_ipv4_addrs
*key
=
7210 skb_flow_dissector_target(f
->dissector
,
7211 FLOW_DISSECTOR_KEY_IPV4_ADDRS
,
7213 struct flow_dissector_key_ipv4_addrs
*mask
=
7214 skb_flow_dissector_target(f
->dissector
,
7215 FLOW_DISSECTOR_KEY_IPV4_ADDRS
,
7219 if (mask
->dst
== cpu_to_be32(0xffffffff)) {
7220 field_flags
|= I40E_CLOUD_FIELD_IIP
;
7222 mask
->dst
= be32_to_cpu(mask
->dst
);
7223 dev_err(&pf
->pdev
->dev
, "Bad ip dst mask %pI4\n",
7225 return I40E_ERR_CONFIG
;
7230 if (mask
->src
== cpu_to_be32(0xffffffff)) {
7231 field_flags
|= I40E_CLOUD_FIELD_IIP
;
7233 mask
->src
= be32_to_cpu(mask
->src
);
7234 dev_err(&pf
->pdev
->dev
, "Bad ip src mask %pI4\n",
7236 return I40E_ERR_CONFIG
;
7240 if (field_flags
& I40E_CLOUD_FIELD_TEN_ID
) {
7241 dev_err(&pf
->pdev
->dev
, "Tenant id not allowed for ip filter\n");
7242 return I40E_ERR_CONFIG
;
7244 filter
->dst_ipv4
= key
->dst
;
7245 filter
->src_ipv4
= key
->src
;
7248 if (addr_type
== FLOW_DISSECTOR_KEY_IPV6_ADDRS
) {
7249 struct flow_dissector_key_ipv6_addrs
*key
=
7250 skb_flow_dissector_target(f
->dissector
,
7251 FLOW_DISSECTOR_KEY_IPV6_ADDRS
,
7253 struct flow_dissector_key_ipv6_addrs
*mask
=
7254 skb_flow_dissector_target(f
->dissector
,
7255 FLOW_DISSECTOR_KEY_IPV6_ADDRS
,
7258 /* src and dest IPV6 address should not be LOOPBACK
7259 * (0:0:0:0:0:0:0:1), which can be represented as ::1
7261 if (ipv6_addr_loopback(&key
->dst
) ||
7262 ipv6_addr_loopback(&key
->src
)) {
7263 dev_err(&pf
->pdev
->dev
,
7264 "Bad ipv6, addr is LOOPBACK\n");
7265 return I40E_ERR_CONFIG
;
7267 if (!ipv6_addr_any(&mask
->dst
) || !ipv6_addr_any(&mask
->src
))
7268 field_flags
|= I40E_CLOUD_FIELD_IIP
;
7270 memcpy(&filter
->src_ipv6
, &key
->src
.s6_addr32
,
7271 sizeof(filter
->src_ipv6
));
7272 memcpy(&filter
->dst_ipv6
, &key
->dst
.s6_addr32
,
7273 sizeof(filter
->dst_ipv6
));
7276 if (dissector_uses_key(f
->dissector
, FLOW_DISSECTOR_KEY_PORTS
)) {
7277 struct flow_dissector_key_ports
*key
=
7278 skb_flow_dissector_target(f
->dissector
,
7279 FLOW_DISSECTOR_KEY_PORTS
,
7281 struct flow_dissector_key_ports
*mask
=
7282 skb_flow_dissector_target(f
->dissector
,
7283 FLOW_DISSECTOR_KEY_PORTS
,
7287 if (mask
->src
== cpu_to_be16(0xffff)) {
7288 field_flags
|= I40E_CLOUD_FIELD_IIP
;
7290 dev_err(&pf
->pdev
->dev
, "Bad src port mask 0x%04x\n",
7291 be16_to_cpu(mask
->src
));
7292 return I40E_ERR_CONFIG
;
7297 if (mask
->dst
== cpu_to_be16(0xffff)) {
7298 field_flags
|= I40E_CLOUD_FIELD_IIP
;
7300 dev_err(&pf
->pdev
->dev
, "Bad dst port mask 0x%04x\n",
7301 be16_to_cpu(mask
->dst
));
7302 return I40E_ERR_CONFIG
;
7306 filter
->dst_port
= key
->dst
;
7307 filter
->src_port
= key
->src
;
7309 switch (filter
->ip_proto
) {
7314 dev_err(&pf
->pdev
->dev
,
7315 "Only UDP and TCP transport are supported\n");
7319 filter
->flags
= field_flags
;
7324 * i40e_handle_tclass: Forward to a traffic class on the device
7325 * @vsi: Pointer to VSI
7326 * @tc: traffic class index on the device
7327 * @filter: Pointer to cloud filter structure
7330 static int i40e_handle_tclass(struct i40e_vsi
*vsi
, u32 tc
,
7331 struct i40e_cloud_filter
*filter
)
7333 struct i40e_channel
*ch
, *ch_tmp
;
7335 /* direct to a traffic class on the same device */
7337 filter
->seid
= vsi
->seid
;
7339 } else if (vsi
->tc_config
.enabled_tc
& BIT(tc
)) {
7340 if (!filter
->dst_port
) {
7341 dev_err(&vsi
->back
->pdev
->dev
,
7342 "Specify destination port to direct to traffic class that is not default\n");
7345 if (list_empty(&vsi
->ch_list
))
7347 list_for_each_entry_safe(ch
, ch_tmp
, &vsi
->ch_list
,
7349 if (ch
->seid
== vsi
->tc_seid_map
[tc
])
7350 filter
->seid
= ch
->seid
;
7354 dev_err(&vsi
->back
->pdev
->dev
, "TC is not enabled\n");
7359 * i40e_configure_clsflower - Configure tc flower filters
7360 * @vsi: Pointer to VSI
7361 * @cls_flower: Pointer to struct tc_cls_flower_offload
7364 static int i40e_configure_clsflower(struct i40e_vsi
*vsi
,
7365 struct tc_cls_flower_offload
*cls_flower
)
7367 int tc
= tc_classid_to_hwtc(vsi
->netdev
, cls_flower
->classid
);
7368 struct i40e_cloud_filter
*filter
= NULL
;
7369 struct i40e_pf
*pf
= vsi
->back
;
7373 dev_err(&vsi
->back
->pdev
->dev
, "Invalid traffic class\n");
7377 if (test_bit(__I40E_RESET_RECOVERY_PENDING
, pf
->state
) ||
7378 test_bit(__I40E_RESET_INTR_RECEIVED
, pf
->state
))
7381 if (pf
->fdir_pf_active_filters
||
7382 (!hlist_empty(&pf
->fdir_filter_list
))) {
7383 dev_err(&vsi
->back
->pdev
->dev
,
7384 "Flow Director Sideband filters exists, turn ntuple off to configure cloud filters\n");
7388 if (vsi
->back
->flags
& I40E_FLAG_FD_SB_ENABLED
) {
7389 dev_err(&vsi
->back
->pdev
->dev
,
7390 "Disable Flow Director Sideband, configuring Cloud filters via tc-flower\n");
7391 vsi
->back
->flags
&= ~I40E_FLAG_FD_SB_ENABLED
;
7392 vsi
->back
->flags
|= I40E_FLAG_FD_SB_TO_CLOUD_FILTER
;
7395 filter
= kzalloc(sizeof(*filter
), GFP_KERNEL
);
7399 filter
->cookie
= cls_flower
->cookie
;
7401 err
= i40e_parse_cls_flower(vsi
, cls_flower
, filter
);
7405 err
= i40e_handle_tclass(vsi
, tc
, filter
);
7409 /* Add cloud filter */
7410 if (filter
->dst_port
)
7411 err
= i40e_add_del_cloud_filter_big_buf(vsi
, filter
, true);
7413 err
= i40e_add_del_cloud_filter(vsi
, filter
, true);
7416 dev_err(&pf
->pdev
->dev
,
7417 "Failed to add cloud filter, err %s\n",
7418 i40e_stat_str(&pf
->hw
, err
));
7422 /* add filter to the ordered list */
7423 INIT_HLIST_NODE(&filter
->cloud_node
);
7425 hlist_add_head(&filter
->cloud_node
, &pf
->cloud_filter_list
);
7427 pf
->num_cloud_filters
++;
7436 * i40e_find_cloud_filter - Find the could filter in the list
7437 * @vsi: Pointer to VSI
7438 * @cookie: filter specific cookie
7441 static struct i40e_cloud_filter
*i40e_find_cloud_filter(struct i40e_vsi
*vsi
,
7442 unsigned long *cookie
)
7444 struct i40e_cloud_filter
*filter
= NULL
;
7445 struct hlist_node
*node2
;
7447 hlist_for_each_entry_safe(filter
, node2
,
7448 &vsi
->back
->cloud_filter_list
, cloud_node
)
7449 if (!memcmp(cookie
, &filter
->cookie
, sizeof(filter
->cookie
)))
7455 * i40e_delete_clsflower - Remove tc flower filters
7456 * @vsi: Pointer to VSI
7457 * @cls_flower: Pointer to struct tc_cls_flower_offload
7460 static int i40e_delete_clsflower(struct i40e_vsi
*vsi
,
7461 struct tc_cls_flower_offload
*cls_flower
)
7463 struct i40e_cloud_filter
*filter
= NULL
;
7464 struct i40e_pf
*pf
= vsi
->back
;
7467 filter
= i40e_find_cloud_filter(vsi
, &cls_flower
->cookie
);
7472 hash_del(&filter
->cloud_node
);
7474 if (filter
->dst_port
)
7475 err
= i40e_add_del_cloud_filter_big_buf(vsi
, filter
, false);
7477 err
= i40e_add_del_cloud_filter(vsi
, filter
, false);
7481 dev_err(&pf
->pdev
->dev
,
7482 "Failed to delete cloud filter, err %s\n",
7483 i40e_stat_str(&pf
->hw
, err
));
7484 return i40e_aq_rc_to_posix(err
, pf
->hw
.aq
.asq_last_status
);
7487 pf
->num_cloud_filters
--;
7488 if (!pf
->num_cloud_filters
)
7489 if ((pf
->flags
& I40E_FLAG_FD_SB_TO_CLOUD_FILTER
) &&
7490 !(pf
->flags
& I40E_FLAG_FD_SB_INACTIVE
)) {
7491 pf
->flags
|= I40E_FLAG_FD_SB_ENABLED
;
7492 pf
->flags
&= ~I40E_FLAG_FD_SB_TO_CLOUD_FILTER
;
7493 pf
->flags
&= ~I40E_FLAG_FD_SB_INACTIVE
;
7499 * i40e_setup_tc_cls_flower - flower classifier offloads
7500 * @netdev: net device to configure
7501 * @type_data: offload data
7503 static int i40e_setup_tc_cls_flower(struct i40e_netdev_priv
*np
,
7504 struct tc_cls_flower_offload
*cls_flower
)
7506 struct i40e_vsi
*vsi
= np
->vsi
;
7508 if (cls_flower
->common
.chain_index
)
7511 switch (cls_flower
->command
) {
7512 case TC_CLSFLOWER_REPLACE
:
7513 return i40e_configure_clsflower(vsi
, cls_flower
);
7514 case TC_CLSFLOWER_DESTROY
:
7515 return i40e_delete_clsflower(vsi
, cls_flower
);
7516 case TC_CLSFLOWER_STATS
:
7523 static int i40e_setup_tc_block_cb(enum tc_setup_type type
, void *type_data
,
7526 struct i40e_netdev_priv
*np
= cb_priv
;
7529 case TC_SETUP_CLSFLOWER
:
7530 return i40e_setup_tc_cls_flower(np
, type_data
);
7537 static int i40e_setup_tc_block(struct net_device
*dev
,
7538 struct tc_block_offload
*f
)
7540 struct i40e_netdev_priv
*np
= netdev_priv(dev
);
7542 if (f
->binder_type
!= TCF_BLOCK_BINDER_TYPE_CLSACT_INGRESS
)
7545 switch (f
->command
) {
7547 return tcf_block_cb_register(f
->block
, i40e_setup_tc_block_cb
,
7549 case TC_BLOCK_UNBIND
:
7550 tcf_block_cb_unregister(f
->block
, i40e_setup_tc_block_cb
, np
);
7557 static int __i40e_setup_tc(struct net_device
*netdev
, enum tc_setup_type type
,
7561 case TC_SETUP_QDISC_MQPRIO
:
7562 return i40e_setup_tc(netdev
, type_data
);
7563 case TC_SETUP_BLOCK
:
7564 return i40e_setup_tc_block(netdev
, type_data
);
7571 * i40e_open - Called when a network interface is made active
7572 * @netdev: network interface device structure
7574 * The open entry point is called when a network interface is made
7575 * active by the system (IFF_UP). At this point all resources needed
7576 * for transmit and receive operations are allocated, the interrupt
7577 * handler is registered with the OS, the netdev watchdog subtask is
7578 * enabled, and the stack is notified that the interface is ready.
7580 * Returns 0 on success, negative value on failure
7582 int i40e_open(struct net_device
*netdev
)
7584 struct i40e_netdev_priv
*np
= netdev_priv(netdev
);
7585 struct i40e_vsi
*vsi
= np
->vsi
;
7586 struct i40e_pf
*pf
= vsi
->back
;
7589 /* disallow open during test or if eeprom is broken */
7590 if (test_bit(__I40E_TESTING
, pf
->state
) ||
7591 test_bit(__I40E_BAD_EEPROM
, pf
->state
))
7594 netif_carrier_off(netdev
);
7596 err
= i40e_vsi_open(vsi
);
7600 /* configure global TSO hardware offload settings */
7601 wr32(&pf
->hw
, I40E_GLLAN_TSOMSK_F
, be32_to_cpu(TCP_FLAG_PSH
|
7602 TCP_FLAG_FIN
) >> 16);
7603 wr32(&pf
->hw
, I40E_GLLAN_TSOMSK_M
, be32_to_cpu(TCP_FLAG_PSH
|
7605 TCP_FLAG_CWR
) >> 16);
7606 wr32(&pf
->hw
, I40E_GLLAN_TSOMSK_L
, be32_to_cpu(TCP_FLAG_CWR
) >> 16);
7608 udp_tunnel_get_rx_info(netdev
);
7615 * @vsi: the VSI to open
7617 * Finish initialization of the VSI.
7619 * Returns 0 on success, negative value on failure
7621 * Note: expects to be called while under rtnl_lock()
7623 int i40e_vsi_open(struct i40e_vsi
*vsi
)
7625 struct i40e_pf
*pf
= vsi
->back
;
7626 char int_name
[I40E_INT_NAME_STR_LEN
];
7629 /* allocate descriptors */
7630 err
= i40e_vsi_setup_tx_resources(vsi
);
7633 err
= i40e_vsi_setup_rx_resources(vsi
);
7637 err
= i40e_vsi_configure(vsi
);
7642 snprintf(int_name
, sizeof(int_name
) - 1, "%s-%s",
7643 dev_driver_string(&pf
->pdev
->dev
), vsi
->netdev
->name
);
7644 err
= i40e_vsi_request_irq(vsi
, int_name
);
7648 /* Notify the stack of the actual queue counts. */
7649 err
= netif_set_real_num_tx_queues(vsi
->netdev
,
7650 vsi
->num_queue_pairs
);
7652 goto err_set_queues
;
7654 err
= netif_set_real_num_rx_queues(vsi
->netdev
,
7655 vsi
->num_queue_pairs
);
7657 goto err_set_queues
;
7659 } else if (vsi
->type
== I40E_VSI_FDIR
) {
7660 snprintf(int_name
, sizeof(int_name
) - 1, "%s-%s:fdir",
7661 dev_driver_string(&pf
->pdev
->dev
),
7662 dev_name(&pf
->pdev
->dev
));
7663 err
= i40e_vsi_request_irq(vsi
, int_name
);
7670 err
= i40e_up_complete(vsi
);
7672 goto err_up_complete
;
7679 i40e_vsi_free_irq(vsi
);
7681 i40e_vsi_free_rx_resources(vsi
);
7683 i40e_vsi_free_tx_resources(vsi
);
7684 if (vsi
== pf
->vsi
[pf
->lan_vsi
])
7685 i40e_do_reset(pf
, I40E_PF_RESET_FLAG
, true);
7691 * i40e_fdir_filter_exit - Cleans up the Flow Director accounting
7692 * @pf: Pointer to PF
7694 * This function destroys the hlist where all the Flow Director
7695 * filters were saved.
7697 static void i40e_fdir_filter_exit(struct i40e_pf
*pf
)
7699 struct i40e_fdir_filter
*filter
;
7700 struct i40e_flex_pit
*pit_entry
, *tmp
;
7701 struct hlist_node
*node2
;
7703 hlist_for_each_entry_safe(filter
, node2
,
7704 &pf
->fdir_filter_list
, fdir_node
) {
7705 hlist_del(&filter
->fdir_node
);
7709 list_for_each_entry_safe(pit_entry
, tmp
, &pf
->l3_flex_pit_list
, list
) {
7710 list_del(&pit_entry
->list
);
7713 INIT_LIST_HEAD(&pf
->l3_flex_pit_list
);
7715 list_for_each_entry_safe(pit_entry
, tmp
, &pf
->l4_flex_pit_list
, list
) {
7716 list_del(&pit_entry
->list
);
7719 INIT_LIST_HEAD(&pf
->l4_flex_pit_list
);
7721 pf
->fdir_pf_active_filters
= 0;
7722 pf
->fd_tcp4_filter_cnt
= 0;
7723 pf
->fd_udp4_filter_cnt
= 0;
7724 pf
->fd_sctp4_filter_cnt
= 0;
7725 pf
->fd_ip4_filter_cnt
= 0;
7727 /* Reprogram the default input set for TCP/IPv4 */
7728 i40e_write_fd_input_set(pf
, I40E_FILTER_PCTYPE_NONF_IPV4_TCP
,
7729 I40E_L3_SRC_MASK
| I40E_L3_DST_MASK
|
7730 I40E_L4_SRC_MASK
| I40E_L4_DST_MASK
);
7732 /* Reprogram the default input set for UDP/IPv4 */
7733 i40e_write_fd_input_set(pf
, I40E_FILTER_PCTYPE_NONF_IPV4_UDP
,
7734 I40E_L3_SRC_MASK
| I40E_L3_DST_MASK
|
7735 I40E_L4_SRC_MASK
| I40E_L4_DST_MASK
);
7737 /* Reprogram the default input set for SCTP/IPv4 */
7738 i40e_write_fd_input_set(pf
, I40E_FILTER_PCTYPE_NONF_IPV4_SCTP
,
7739 I40E_L3_SRC_MASK
| I40E_L3_DST_MASK
|
7740 I40E_L4_SRC_MASK
| I40E_L4_DST_MASK
);
7742 /* Reprogram the default input set for Other/IPv4 */
7743 i40e_write_fd_input_set(pf
, I40E_FILTER_PCTYPE_NONF_IPV4_OTHER
,
7744 I40E_L3_SRC_MASK
| I40E_L3_DST_MASK
);
7748 * i40e_cloud_filter_exit - Cleans up the cloud filters
7749 * @pf: Pointer to PF
7751 * This function destroys the hlist where all the cloud filters
7754 static void i40e_cloud_filter_exit(struct i40e_pf
*pf
)
7756 struct i40e_cloud_filter
*cfilter
;
7757 struct hlist_node
*node
;
7759 hlist_for_each_entry_safe(cfilter
, node
,
7760 &pf
->cloud_filter_list
, cloud_node
) {
7761 hlist_del(&cfilter
->cloud_node
);
7764 pf
->num_cloud_filters
= 0;
7766 if ((pf
->flags
& I40E_FLAG_FD_SB_TO_CLOUD_FILTER
) &&
7767 !(pf
->flags
& I40E_FLAG_FD_SB_INACTIVE
)) {
7768 pf
->flags
|= I40E_FLAG_FD_SB_ENABLED
;
7769 pf
->flags
&= ~I40E_FLAG_FD_SB_TO_CLOUD_FILTER
;
7770 pf
->flags
&= ~I40E_FLAG_FD_SB_INACTIVE
;
7775 * i40e_close - Disables a network interface
7776 * @netdev: network interface device structure
7778 * The close entry point is called when an interface is de-activated
7779 * by the OS. The hardware is still under the driver's control, but
7780 * this netdev interface is disabled.
7782 * Returns 0, this is not allowed to fail
7784 int i40e_close(struct net_device
*netdev
)
7786 struct i40e_netdev_priv
*np
= netdev_priv(netdev
);
7787 struct i40e_vsi
*vsi
= np
->vsi
;
7789 i40e_vsi_close(vsi
);
7795 * i40e_do_reset - Start a PF or Core Reset sequence
7796 * @pf: board private structure
7797 * @reset_flags: which reset is requested
7798 * @lock_acquired: indicates whether or not the lock has been acquired
7799 * before this function was called.
7801 * The essential difference in resets is that the PF Reset
7802 * doesn't clear the packet buffers, doesn't reset the PE
7803 * firmware, and doesn't bother the other PFs on the chip.
7805 void i40e_do_reset(struct i40e_pf
*pf
, u32 reset_flags
, bool lock_acquired
)
7809 WARN_ON(in_interrupt());
7812 /* do the biggest reset indicated */
7813 if (reset_flags
& BIT_ULL(__I40E_GLOBAL_RESET_REQUESTED
)) {
7815 /* Request a Global Reset
7817 * This will start the chip's countdown to the actual full
7818 * chip reset event, and a warning interrupt to be sent
7819 * to all PFs, including the requestor. Our handler
7820 * for the warning interrupt will deal with the shutdown
7821 * and recovery of the switch setup.
7823 dev_dbg(&pf
->pdev
->dev
, "GlobalR requested\n");
7824 val
= rd32(&pf
->hw
, I40E_GLGEN_RTRIG
);
7825 val
|= I40E_GLGEN_RTRIG_GLOBR_MASK
;
7826 wr32(&pf
->hw
, I40E_GLGEN_RTRIG
, val
);
7828 } else if (reset_flags
& BIT_ULL(__I40E_CORE_RESET_REQUESTED
)) {
7830 /* Request a Core Reset
7832 * Same as Global Reset, except does *not* include the MAC/PHY
7834 dev_dbg(&pf
->pdev
->dev
, "CoreR requested\n");
7835 val
= rd32(&pf
->hw
, I40E_GLGEN_RTRIG
);
7836 val
|= I40E_GLGEN_RTRIG_CORER_MASK
;
7837 wr32(&pf
->hw
, I40E_GLGEN_RTRIG
, val
);
7838 i40e_flush(&pf
->hw
);
7840 } else if (reset_flags
& I40E_PF_RESET_FLAG
) {
7842 /* Request a PF Reset
7844 * Resets only the PF-specific registers
7846 * This goes directly to the tear-down and rebuild of
7847 * the switch, since we need to do all the recovery as
7848 * for the Core Reset.
7850 dev_dbg(&pf
->pdev
->dev
, "PFR requested\n");
7851 i40e_handle_reset_warning(pf
, lock_acquired
);
7853 } else if (reset_flags
& BIT_ULL(__I40E_REINIT_REQUESTED
)) {
7856 /* Find the VSI(s) that requested a re-init */
7857 dev_info(&pf
->pdev
->dev
,
7858 "VSI reinit requested\n");
7859 for (v
= 0; v
< pf
->num_alloc_vsi
; v
++) {
7860 struct i40e_vsi
*vsi
= pf
->vsi
[v
];
7863 test_and_clear_bit(__I40E_VSI_REINIT_REQUESTED
,
7865 i40e_vsi_reinit_locked(pf
->vsi
[v
]);
7867 } else if (reset_flags
& BIT_ULL(__I40E_DOWN_REQUESTED
)) {
7870 /* Find the VSI(s) that needs to be brought down */
7871 dev_info(&pf
->pdev
->dev
, "VSI down requested\n");
7872 for (v
= 0; v
< pf
->num_alloc_vsi
; v
++) {
7873 struct i40e_vsi
*vsi
= pf
->vsi
[v
];
7876 test_and_clear_bit(__I40E_VSI_DOWN_REQUESTED
,
7878 set_bit(__I40E_VSI_DOWN
, vsi
->state
);
7883 dev_info(&pf
->pdev
->dev
,
7884 "bad reset request 0x%08x\n", reset_flags
);
7888 #ifdef CONFIG_I40E_DCB
7890 * i40e_dcb_need_reconfig - Check if DCB needs reconfig
7891 * @pf: board private structure
7892 * @old_cfg: current DCB config
7893 * @new_cfg: new DCB config
7895 bool i40e_dcb_need_reconfig(struct i40e_pf
*pf
,
7896 struct i40e_dcbx_config
*old_cfg
,
7897 struct i40e_dcbx_config
*new_cfg
)
7899 bool need_reconfig
= false;
7901 /* Check if ETS configuration has changed */
7902 if (memcmp(&new_cfg
->etscfg
,
7904 sizeof(new_cfg
->etscfg
))) {
7905 /* If Priority Table has changed reconfig is needed */
7906 if (memcmp(&new_cfg
->etscfg
.prioritytable
,
7907 &old_cfg
->etscfg
.prioritytable
,
7908 sizeof(new_cfg
->etscfg
.prioritytable
))) {
7909 need_reconfig
= true;
7910 dev_dbg(&pf
->pdev
->dev
, "ETS UP2TC changed.\n");
7913 if (memcmp(&new_cfg
->etscfg
.tcbwtable
,
7914 &old_cfg
->etscfg
.tcbwtable
,
7915 sizeof(new_cfg
->etscfg
.tcbwtable
)))
7916 dev_dbg(&pf
->pdev
->dev
, "ETS TC BW Table changed.\n");
7918 if (memcmp(&new_cfg
->etscfg
.tsatable
,
7919 &old_cfg
->etscfg
.tsatable
,
7920 sizeof(new_cfg
->etscfg
.tsatable
)))
7921 dev_dbg(&pf
->pdev
->dev
, "ETS TSA Table changed.\n");
7924 /* Check if PFC configuration has changed */
7925 if (memcmp(&new_cfg
->pfc
,
7927 sizeof(new_cfg
->pfc
))) {
7928 need_reconfig
= true;
7929 dev_dbg(&pf
->pdev
->dev
, "PFC config change detected.\n");
7932 /* Check if APP Table has changed */
7933 if (memcmp(&new_cfg
->app
,
7935 sizeof(new_cfg
->app
))) {
7936 need_reconfig
= true;
7937 dev_dbg(&pf
->pdev
->dev
, "APP Table change detected.\n");
7940 dev_dbg(&pf
->pdev
->dev
, "dcb need_reconfig=%d\n", need_reconfig
);
7941 return need_reconfig
;
7945 * i40e_handle_lldp_event - Handle LLDP Change MIB event
7946 * @pf: board private structure
7947 * @e: event info posted on ARQ
7949 static int i40e_handle_lldp_event(struct i40e_pf
*pf
,
7950 struct i40e_arq_event_info
*e
)
7952 struct i40e_aqc_lldp_get_mib
*mib
=
7953 (struct i40e_aqc_lldp_get_mib
*)&e
->desc
.params
.raw
;
7954 struct i40e_hw
*hw
= &pf
->hw
;
7955 struct i40e_dcbx_config tmp_dcbx_cfg
;
7956 bool need_reconfig
= false;
7960 /* Not DCB capable or capability disabled */
7961 if (!(pf
->flags
& I40E_FLAG_DCB_CAPABLE
))
7964 /* Ignore if event is not for Nearest Bridge */
7965 type
= ((mib
->type
>> I40E_AQ_LLDP_BRIDGE_TYPE_SHIFT
)
7966 & I40E_AQ_LLDP_BRIDGE_TYPE_MASK
);
7967 dev_dbg(&pf
->pdev
->dev
, "LLDP event mib bridge type 0x%x\n", type
);
7968 if (type
!= I40E_AQ_LLDP_BRIDGE_TYPE_NEAREST_BRIDGE
)
7971 /* Check MIB Type and return if event for Remote MIB update */
7972 type
= mib
->type
& I40E_AQ_LLDP_MIB_TYPE_MASK
;
7973 dev_dbg(&pf
->pdev
->dev
,
7974 "LLDP event mib type %s\n", type
? "remote" : "local");
7975 if (type
== I40E_AQ_LLDP_MIB_REMOTE
) {
7976 /* Update the remote cached instance and return */
7977 ret
= i40e_aq_get_dcb_config(hw
, I40E_AQ_LLDP_MIB_REMOTE
,
7978 I40E_AQ_LLDP_BRIDGE_TYPE_NEAREST_BRIDGE
,
7979 &hw
->remote_dcbx_config
);
7983 /* Store the old configuration */
7984 tmp_dcbx_cfg
= hw
->local_dcbx_config
;
7986 /* Reset the old DCBx configuration data */
7987 memset(&hw
->local_dcbx_config
, 0, sizeof(hw
->local_dcbx_config
));
7988 /* Get updated DCBX data from firmware */
7989 ret
= i40e_get_dcb_config(&pf
->hw
);
7991 dev_info(&pf
->pdev
->dev
,
7992 "Failed querying DCB configuration data from firmware, err %s aq_err %s\n",
7993 i40e_stat_str(&pf
->hw
, ret
),
7994 i40e_aq_str(&pf
->hw
, pf
->hw
.aq
.asq_last_status
));
7998 /* No change detected in DCBX configs */
7999 if (!memcmp(&tmp_dcbx_cfg
, &hw
->local_dcbx_config
,
8000 sizeof(tmp_dcbx_cfg
))) {
8001 dev_dbg(&pf
->pdev
->dev
, "No change detected in DCBX configuration.\n");
8005 need_reconfig
= i40e_dcb_need_reconfig(pf
, &tmp_dcbx_cfg
,
8006 &hw
->local_dcbx_config
);
8008 i40e_dcbnl_flush_apps(pf
, &tmp_dcbx_cfg
, &hw
->local_dcbx_config
);
8013 /* Enable DCB tagging only when more than one TC */
8014 if (i40e_dcb_get_num_tc(&hw
->local_dcbx_config
) > 1)
8015 pf
->flags
|= I40E_FLAG_DCB_ENABLED
;
8017 pf
->flags
&= ~I40E_FLAG_DCB_ENABLED
;
8019 set_bit(__I40E_PORT_SUSPENDED
, pf
->state
);
8020 /* Reconfiguration needed quiesce all VSIs */
8021 i40e_pf_quiesce_all_vsi(pf
);
8023 /* Changes in configuration update VEB/VSI */
8024 i40e_dcb_reconfigure(pf
);
8026 ret
= i40e_resume_port_tx(pf
);
8028 clear_bit(__I40E_PORT_SUSPENDED
, pf
->state
);
8029 /* In case of error no point in resuming VSIs */
8033 /* Wait for the PF's queues to be disabled */
8034 ret
= i40e_pf_wait_queues_disabled(pf
);
8036 /* Schedule PF reset to recover */
8037 set_bit(__I40E_PF_RESET_REQUESTED
, pf
->state
);
8038 i40e_service_event_schedule(pf
);
8040 i40e_pf_unquiesce_all_vsi(pf
);
8041 pf
->flags
|= (I40E_FLAG_SERVICE_CLIENT_REQUESTED
|
8042 I40E_FLAG_CLIENT_L2_CHANGE
);
8048 #endif /* CONFIG_I40E_DCB */
8051 * i40e_do_reset_safe - Protected reset path for userland calls.
8052 * @pf: board private structure
8053 * @reset_flags: which reset is requested
8056 void i40e_do_reset_safe(struct i40e_pf
*pf
, u32 reset_flags
)
8059 i40e_do_reset(pf
, reset_flags
, true);
8064 * i40e_handle_lan_overflow_event - Handler for LAN queue overflow event
8065 * @pf: board private structure
8066 * @e: event info posted on ARQ
8068 * Handler for LAN Queue Overflow Event generated by the firmware for PF
8071 static void i40e_handle_lan_overflow_event(struct i40e_pf
*pf
,
8072 struct i40e_arq_event_info
*e
)
8074 struct i40e_aqc_lan_overflow
*data
=
8075 (struct i40e_aqc_lan_overflow
*)&e
->desc
.params
.raw
;
8076 u32 queue
= le32_to_cpu(data
->prtdcb_rupto
);
8077 u32 qtx_ctl
= le32_to_cpu(data
->otx_ctl
);
8078 struct i40e_hw
*hw
= &pf
->hw
;
8082 dev_dbg(&pf
->pdev
->dev
, "overflow Rx Queue Number = %d QTX_CTL=0x%08x\n",
8085 /* Queue belongs to VF, find the VF and issue VF reset */
8086 if (((qtx_ctl
& I40E_QTX_CTL_PFVF_Q_MASK
)
8087 >> I40E_QTX_CTL_PFVF_Q_SHIFT
) == I40E_QTX_CTL_VF_QUEUE
) {
8088 vf_id
= (u16
)((qtx_ctl
& I40E_QTX_CTL_VFVM_INDX_MASK
)
8089 >> I40E_QTX_CTL_VFVM_INDX_SHIFT
);
8090 vf_id
-= hw
->func_caps
.vf_base_id
;
8091 vf
= &pf
->vf
[vf_id
];
8092 i40e_vc_notify_vf_reset(vf
);
8093 /* Allow VF to process pending reset notification */
8095 i40e_reset_vf(vf
, false);
8100 * i40e_get_cur_guaranteed_fd_count - Get the consumed guaranteed FD filters
8101 * @pf: board private structure
8103 u32
i40e_get_cur_guaranteed_fd_count(struct i40e_pf
*pf
)
8107 val
= rd32(&pf
->hw
, I40E_PFQF_FDSTAT
);
8108 fcnt_prog
= (val
& I40E_PFQF_FDSTAT_GUARANT_CNT_MASK
);
8113 * i40e_get_current_fd_count - Get total FD filters programmed for this PF
8114 * @pf: board private structure
8116 u32
i40e_get_current_fd_count(struct i40e_pf
*pf
)
8120 val
= rd32(&pf
->hw
, I40E_PFQF_FDSTAT
);
8121 fcnt_prog
= (val
& I40E_PFQF_FDSTAT_GUARANT_CNT_MASK
) +
8122 ((val
& I40E_PFQF_FDSTAT_BEST_CNT_MASK
) >>
8123 I40E_PFQF_FDSTAT_BEST_CNT_SHIFT
);
8128 * i40e_get_global_fd_count - Get total FD filters programmed on device
8129 * @pf: board private structure
8131 u32
i40e_get_global_fd_count(struct i40e_pf
*pf
)
8135 val
= rd32(&pf
->hw
, I40E_GLQF_FDCNT_0
);
8136 fcnt_prog
= (val
& I40E_GLQF_FDCNT_0_GUARANT_CNT_MASK
) +
8137 ((val
& I40E_GLQF_FDCNT_0_BESTCNT_MASK
) >>
8138 I40E_GLQF_FDCNT_0_BESTCNT_SHIFT
);
8143 * i40e_fdir_check_and_reenable - Function to reenabe FD ATR or SB if disabled
8144 * @pf: board private structure
8146 void i40e_fdir_check_and_reenable(struct i40e_pf
*pf
)
8148 struct i40e_fdir_filter
*filter
;
8149 u32 fcnt_prog
, fcnt_avail
;
8150 struct hlist_node
*node
;
8152 if (test_bit(__I40E_FD_FLUSH_REQUESTED
, pf
->state
))
8155 /* Check if we have enough room to re-enable FDir SB capability. */
8156 fcnt_prog
= i40e_get_global_fd_count(pf
);
8157 fcnt_avail
= pf
->fdir_pf_filter_count
;
8158 if ((fcnt_prog
< (fcnt_avail
- I40E_FDIR_BUFFER_HEAD_ROOM
)) ||
8159 (pf
->fd_add_err
== 0) ||
8160 (i40e_get_current_atr_cnt(pf
) < pf
->fd_atr_cnt
)) {
8161 if (pf
->flags
& I40E_FLAG_FD_SB_AUTO_DISABLED
) {
8162 pf
->flags
&= ~I40E_FLAG_FD_SB_AUTO_DISABLED
;
8163 if ((pf
->flags
& I40E_FLAG_FD_SB_ENABLED
) &&
8164 (I40E_DEBUG_FD
& pf
->hw
.debug_mask
))
8165 dev_info(&pf
->pdev
->dev
, "FD Sideband/ntuple is being enabled since we have space in the table now\n");
8169 /* We should wait for even more space before re-enabling ATR.
8170 * Additionally, we cannot enable ATR as long as we still have TCP SB
8173 if ((fcnt_prog
< (fcnt_avail
- I40E_FDIR_BUFFER_HEAD_ROOM_FOR_ATR
)) &&
8174 (pf
->fd_tcp4_filter_cnt
== 0)) {
8175 if (pf
->flags
& I40E_FLAG_FD_ATR_AUTO_DISABLED
) {
8176 pf
->flags
&= ~I40E_FLAG_FD_ATR_AUTO_DISABLED
;
8177 if ((pf
->flags
& I40E_FLAG_FD_ATR_ENABLED
) &&
8178 (I40E_DEBUG_FD
& pf
->hw
.debug_mask
))
8179 dev_info(&pf
->pdev
->dev
, "ATR is being enabled since we have space in the table and there are no conflicting ntuple rules\n");
8183 /* if hw had a problem adding a filter, delete it */
8184 if (pf
->fd_inv
> 0) {
8185 hlist_for_each_entry_safe(filter
, node
,
8186 &pf
->fdir_filter_list
, fdir_node
) {
8187 if (filter
->fd_id
== pf
->fd_inv
) {
8188 hlist_del(&filter
->fdir_node
);
8190 pf
->fdir_pf_active_filters
--;
8197 #define I40E_MIN_FD_FLUSH_INTERVAL 10
8198 #define I40E_MIN_FD_FLUSH_SB_ATR_UNSTABLE 30
8200 * i40e_fdir_flush_and_replay - Function to flush all FD filters and replay SB
8201 * @pf: board private structure
8203 static void i40e_fdir_flush_and_replay(struct i40e_pf
*pf
)
8205 unsigned long min_flush_time
;
8206 int flush_wait_retry
= 50;
8207 bool disable_atr
= false;
8211 if (!time_after(jiffies
, pf
->fd_flush_timestamp
+
8212 (I40E_MIN_FD_FLUSH_INTERVAL
* HZ
)))
8215 /* If the flush is happening too quick and we have mostly SB rules we
8216 * should not re-enable ATR for some time.
8218 min_flush_time
= pf
->fd_flush_timestamp
+
8219 (I40E_MIN_FD_FLUSH_SB_ATR_UNSTABLE
* HZ
);
8220 fd_room
= pf
->fdir_pf_filter_count
- pf
->fdir_pf_active_filters
;
8222 if (!(time_after(jiffies
, min_flush_time
)) &&
8223 (fd_room
< I40E_FDIR_BUFFER_HEAD_ROOM_FOR_ATR
)) {
8224 if (I40E_DEBUG_FD
& pf
->hw
.debug_mask
)
8225 dev_info(&pf
->pdev
->dev
, "ATR disabled, not enough FD filter space.\n");
8229 pf
->fd_flush_timestamp
= jiffies
;
8230 pf
->flags
|= I40E_FLAG_FD_ATR_AUTO_DISABLED
;
8231 /* flush all filters */
8232 wr32(&pf
->hw
, I40E_PFQF_CTL_1
,
8233 I40E_PFQF_CTL_1_CLEARFDTABLE_MASK
);
8234 i40e_flush(&pf
->hw
);
8238 /* Check FD flush status every 5-6msec */
8239 usleep_range(5000, 6000);
8240 reg
= rd32(&pf
->hw
, I40E_PFQF_CTL_1
);
8241 if (!(reg
& I40E_PFQF_CTL_1_CLEARFDTABLE_MASK
))
8243 } while (flush_wait_retry
--);
8244 if (reg
& I40E_PFQF_CTL_1_CLEARFDTABLE_MASK
) {
8245 dev_warn(&pf
->pdev
->dev
, "FD table did not flush, needs more time\n");
8247 /* replay sideband filters */
8248 i40e_fdir_filter_restore(pf
->vsi
[pf
->lan_vsi
]);
8249 if (!disable_atr
&& !pf
->fd_tcp4_filter_cnt
)
8250 pf
->flags
&= ~I40E_FLAG_FD_ATR_AUTO_DISABLED
;
8251 clear_bit(__I40E_FD_FLUSH_REQUESTED
, pf
->state
);
8252 if (I40E_DEBUG_FD
& pf
->hw
.debug_mask
)
8253 dev_info(&pf
->pdev
->dev
, "FD Filter table flushed and FD-SB replayed.\n");
8258 * i40e_get_current_atr_count - Get the count of total FD ATR filters programmed
8259 * @pf: board private structure
8261 u32
i40e_get_current_atr_cnt(struct i40e_pf
*pf
)
8263 return i40e_get_current_fd_count(pf
) - pf
->fdir_pf_active_filters
;
8266 /* We can see up to 256 filter programming desc in transit if the filters are
8267 * being applied really fast; before we see the first
8268 * filter miss error on Rx queue 0. Accumulating enough error messages before
8269 * reacting will make sure we don't cause flush too often.
8271 #define I40E_MAX_FD_PROGRAM_ERROR 256
8274 * i40e_fdir_reinit_subtask - Worker thread to reinit FDIR filter table
8275 * @pf: board private structure
8277 static void i40e_fdir_reinit_subtask(struct i40e_pf
*pf
)
8280 /* if interface is down do nothing */
8281 if (test_bit(__I40E_DOWN
, pf
->state
))
8284 if (test_bit(__I40E_FD_FLUSH_REQUESTED
, pf
->state
))
8285 i40e_fdir_flush_and_replay(pf
);
8287 i40e_fdir_check_and_reenable(pf
);
8292 * i40e_vsi_link_event - notify VSI of a link event
8293 * @vsi: vsi to be notified
8294 * @link_up: link up or down
8296 static void i40e_vsi_link_event(struct i40e_vsi
*vsi
, bool link_up
)
8298 if (!vsi
|| test_bit(__I40E_VSI_DOWN
, vsi
->state
))
8301 switch (vsi
->type
) {
8303 if (!vsi
->netdev
|| !vsi
->netdev_registered
)
8307 netif_carrier_on(vsi
->netdev
);
8308 netif_tx_wake_all_queues(vsi
->netdev
);
8310 netif_carrier_off(vsi
->netdev
);
8311 netif_tx_stop_all_queues(vsi
->netdev
);
8315 case I40E_VSI_SRIOV
:
8316 case I40E_VSI_VMDQ2
:
8318 case I40E_VSI_IWARP
:
8319 case I40E_VSI_MIRROR
:
8321 /* there is no notification for other VSIs */
8327 * i40e_veb_link_event - notify elements on the veb of a link event
8328 * @veb: veb to be notified
8329 * @link_up: link up or down
8331 static void i40e_veb_link_event(struct i40e_veb
*veb
, bool link_up
)
8336 if (!veb
|| !veb
->pf
)
8340 /* depth first... */
8341 for (i
= 0; i
< I40E_MAX_VEB
; i
++)
8342 if (pf
->veb
[i
] && (pf
->veb
[i
]->uplink_seid
== veb
->seid
))
8343 i40e_veb_link_event(pf
->veb
[i
], link_up
);
8345 /* ... now the local VSIs */
8346 for (i
= 0; i
< pf
->num_alloc_vsi
; i
++)
8347 if (pf
->vsi
[i
] && (pf
->vsi
[i
]->uplink_seid
== veb
->seid
))
8348 i40e_vsi_link_event(pf
->vsi
[i
], link_up
);
8352 * i40e_link_event - Update netif_carrier status
8353 * @pf: board private structure
8355 static void i40e_link_event(struct i40e_pf
*pf
)
8357 struct i40e_vsi
*vsi
= pf
->vsi
[pf
->lan_vsi
];
8358 u8 new_link_speed
, old_link_speed
;
8360 bool new_link
, old_link
;
8362 /* save off old link status information */
8363 pf
->hw
.phy
.link_info_old
= pf
->hw
.phy
.link_info
;
8365 /* set this to force the get_link_status call to refresh state */
8366 pf
->hw
.phy
.get_link_info
= true;
8368 old_link
= (pf
->hw
.phy
.link_info_old
.link_info
& I40E_AQ_LINK_UP
);
8370 status
= i40e_get_link_status(&pf
->hw
, &new_link
);
8372 /* On success, disable temp link polling */
8373 if (status
== I40E_SUCCESS
) {
8374 if (pf
->flags
& I40E_FLAG_TEMP_LINK_POLLING
)
8375 pf
->flags
&= ~I40E_FLAG_TEMP_LINK_POLLING
;
8377 /* Enable link polling temporarily until i40e_get_link_status
8378 * returns I40E_SUCCESS
8380 pf
->flags
|= I40E_FLAG_TEMP_LINK_POLLING
;
8381 dev_dbg(&pf
->pdev
->dev
, "couldn't get link state, status: %d\n",
8386 old_link_speed
= pf
->hw
.phy
.link_info_old
.link_speed
;
8387 new_link_speed
= pf
->hw
.phy
.link_info
.link_speed
;
8389 if (new_link
== old_link
&&
8390 new_link_speed
== old_link_speed
&&
8391 (test_bit(__I40E_VSI_DOWN
, vsi
->state
) ||
8392 new_link
== netif_carrier_ok(vsi
->netdev
)))
8395 i40e_print_link_message(vsi
, new_link
);
8397 /* Notify the base of the switch tree connected to
8398 * the link. Floating VEBs are not notified.
8400 if (pf
->lan_veb
!= I40E_NO_VEB
&& pf
->veb
[pf
->lan_veb
])
8401 i40e_veb_link_event(pf
->veb
[pf
->lan_veb
], new_link
);
8403 i40e_vsi_link_event(vsi
, new_link
);
8406 i40e_vc_notify_link_state(pf
);
8408 if (pf
->flags
& I40E_FLAG_PTP
)
8409 i40e_ptp_set_increment(pf
);
8413 * i40e_watchdog_subtask - periodic checks not using event driven response
8414 * @pf: board private structure
8416 static void i40e_watchdog_subtask(struct i40e_pf
*pf
)
8420 /* if interface is down do nothing */
8421 if (test_bit(__I40E_DOWN
, pf
->state
) ||
8422 test_bit(__I40E_CONFIG_BUSY
, pf
->state
))
8425 /* make sure we don't do these things too often */
8426 if (time_before(jiffies
, (pf
->service_timer_previous
+
8427 pf
->service_timer_period
)))
8429 pf
->service_timer_previous
= jiffies
;
8431 if ((pf
->flags
& I40E_FLAG_LINK_POLLING_ENABLED
) ||
8432 (pf
->flags
& I40E_FLAG_TEMP_LINK_POLLING
))
8433 i40e_link_event(pf
);
8435 /* Update the stats for active netdevs so the network stack
8436 * can look at updated numbers whenever it cares to
8438 for (i
= 0; i
< pf
->num_alloc_vsi
; i
++)
8439 if (pf
->vsi
[i
] && pf
->vsi
[i
]->netdev
)
8440 i40e_update_stats(pf
->vsi
[i
]);
8442 if (pf
->flags
& I40E_FLAG_VEB_STATS_ENABLED
) {
8443 /* Update the stats for the active switching components */
8444 for (i
= 0; i
< I40E_MAX_VEB
; i
++)
8446 i40e_update_veb_stats(pf
->veb
[i
]);
8449 i40e_ptp_rx_hang(pf
);
8450 i40e_ptp_tx_hang(pf
);
8454 * i40e_reset_subtask - Set up for resetting the device and driver
8455 * @pf: board private structure
8457 static void i40e_reset_subtask(struct i40e_pf
*pf
)
8459 u32 reset_flags
= 0;
8461 if (test_bit(__I40E_REINIT_REQUESTED
, pf
->state
)) {
8462 reset_flags
|= BIT(__I40E_REINIT_REQUESTED
);
8463 clear_bit(__I40E_REINIT_REQUESTED
, pf
->state
);
8465 if (test_bit(__I40E_PF_RESET_REQUESTED
, pf
->state
)) {
8466 reset_flags
|= BIT(__I40E_PF_RESET_REQUESTED
);
8467 clear_bit(__I40E_PF_RESET_REQUESTED
, pf
->state
);
8469 if (test_bit(__I40E_CORE_RESET_REQUESTED
, pf
->state
)) {
8470 reset_flags
|= BIT(__I40E_CORE_RESET_REQUESTED
);
8471 clear_bit(__I40E_CORE_RESET_REQUESTED
, pf
->state
);
8473 if (test_bit(__I40E_GLOBAL_RESET_REQUESTED
, pf
->state
)) {
8474 reset_flags
|= BIT(__I40E_GLOBAL_RESET_REQUESTED
);
8475 clear_bit(__I40E_GLOBAL_RESET_REQUESTED
, pf
->state
);
8477 if (test_bit(__I40E_DOWN_REQUESTED
, pf
->state
)) {
8478 reset_flags
|= BIT(__I40E_DOWN_REQUESTED
);
8479 clear_bit(__I40E_DOWN_REQUESTED
, pf
->state
);
8482 /* If there's a recovery already waiting, it takes
8483 * precedence before starting a new reset sequence.
8485 if (test_bit(__I40E_RESET_INTR_RECEIVED
, pf
->state
)) {
8486 i40e_prep_for_reset(pf
, false);
8488 i40e_rebuild(pf
, false, false);
8491 /* If we're already down or resetting, just bail */
8493 !test_bit(__I40E_DOWN
, pf
->state
) &&
8494 !test_bit(__I40E_CONFIG_BUSY
, pf
->state
)) {
8495 i40e_do_reset(pf
, reset_flags
, false);
8500 * i40e_handle_link_event - Handle link event
8501 * @pf: board private structure
8502 * @e: event info posted on ARQ
8504 static void i40e_handle_link_event(struct i40e_pf
*pf
,
8505 struct i40e_arq_event_info
*e
)
8507 struct i40e_aqc_get_link_status
*status
=
8508 (struct i40e_aqc_get_link_status
*)&e
->desc
.params
.raw
;
8510 /* Do a new status request to re-enable LSE reporting
8511 * and load new status information into the hw struct
8512 * This completely ignores any state information
8513 * in the ARQ event info, instead choosing to always
8514 * issue the AQ update link status command.
8516 i40e_link_event(pf
);
8518 /* Check if module meets thermal requirements */
8519 if (status
->phy_type
== I40E_PHY_TYPE_NOT_SUPPORTED_HIGH_TEMP
) {
8520 dev_err(&pf
->pdev
->dev
,
8521 "Rx/Tx is disabled on this device because the module does not meet thermal requirements.\n");
8522 dev_err(&pf
->pdev
->dev
,
8523 "Refer to the Intel(R) Ethernet Adapters and Devices User Guide for a list of supported modules.\n");
8525 /* check for unqualified module, if link is down, suppress
8526 * the message if link was forced to be down.
8528 if ((status
->link_info
& I40E_AQ_MEDIA_AVAILABLE
) &&
8529 (!(status
->an_info
& I40E_AQ_QUALIFIED_MODULE
)) &&
8530 (!(status
->link_info
& I40E_AQ_LINK_UP
)) &&
8531 (!(pf
->flags
& I40E_FLAG_LINK_DOWN_ON_CLOSE_ENABLED
))) {
8532 dev_err(&pf
->pdev
->dev
,
8533 "Rx/Tx is disabled on this device because an unsupported SFP module type was detected.\n");
8534 dev_err(&pf
->pdev
->dev
,
8535 "Refer to the Intel(R) Ethernet Adapters and Devices User Guide for a list of supported modules.\n");
8541 * i40e_clean_adminq_subtask - Clean the AdminQ rings
8542 * @pf: board private structure
8544 static void i40e_clean_adminq_subtask(struct i40e_pf
*pf
)
8546 struct i40e_arq_event_info event
;
8547 struct i40e_hw
*hw
= &pf
->hw
;
8554 /* Do not run clean AQ when PF reset fails */
8555 if (test_bit(__I40E_RESET_FAILED
, pf
->state
))
8558 /* check for error indications */
8559 val
= rd32(&pf
->hw
, pf
->hw
.aq
.arq
.len
);
8561 if (val
& I40E_PF_ARQLEN_ARQVFE_MASK
) {
8562 if (hw
->debug_mask
& I40E_DEBUG_AQ
)
8563 dev_info(&pf
->pdev
->dev
, "ARQ VF Error detected\n");
8564 val
&= ~I40E_PF_ARQLEN_ARQVFE_MASK
;
8566 if (val
& I40E_PF_ARQLEN_ARQOVFL_MASK
) {
8567 if (hw
->debug_mask
& I40E_DEBUG_AQ
)
8568 dev_info(&pf
->pdev
->dev
, "ARQ Overflow Error detected\n");
8569 val
&= ~I40E_PF_ARQLEN_ARQOVFL_MASK
;
8570 pf
->arq_overflows
++;
8572 if (val
& I40E_PF_ARQLEN_ARQCRIT_MASK
) {
8573 if (hw
->debug_mask
& I40E_DEBUG_AQ
)
8574 dev_info(&pf
->pdev
->dev
, "ARQ Critical Error detected\n");
8575 val
&= ~I40E_PF_ARQLEN_ARQCRIT_MASK
;
8578 wr32(&pf
->hw
, pf
->hw
.aq
.arq
.len
, val
);
8580 val
= rd32(&pf
->hw
, pf
->hw
.aq
.asq
.len
);
8582 if (val
& I40E_PF_ATQLEN_ATQVFE_MASK
) {
8583 if (pf
->hw
.debug_mask
& I40E_DEBUG_AQ
)
8584 dev_info(&pf
->pdev
->dev
, "ASQ VF Error detected\n");
8585 val
&= ~I40E_PF_ATQLEN_ATQVFE_MASK
;
8587 if (val
& I40E_PF_ATQLEN_ATQOVFL_MASK
) {
8588 if (pf
->hw
.debug_mask
& I40E_DEBUG_AQ
)
8589 dev_info(&pf
->pdev
->dev
, "ASQ Overflow Error detected\n");
8590 val
&= ~I40E_PF_ATQLEN_ATQOVFL_MASK
;
8592 if (val
& I40E_PF_ATQLEN_ATQCRIT_MASK
) {
8593 if (pf
->hw
.debug_mask
& I40E_DEBUG_AQ
)
8594 dev_info(&pf
->pdev
->dev
, "ASQ Critical Error detected\n");
8595 val
&= ~I40E_PF_ATQLEN_ATQCRIT_MASK
;
8598 wr32(&pf
->hw
, pf
->hw
.aq
.asq
.len
, val
);
8600 event
.buf_len
= I40E_MAX_AQ_BUF_SIZE
;
8601 event
.msg_buf
= kzalloc(event
.buf_len
, GFP_KERNEL
);
8606 ret
= i40e_clean_arq_element(hw
, &event
, &pending
);
8607 if (ret
== I40E_ERR_ADMIN_QUEUE_NO_WORK
)
8610 dev_info(&pf
->pdev
->dev
, "ARQ event error %d\n", ret
);
8614 opcode
= le16_to_cpu(event
.desc
.opcode
);
8617 case i40e_aqc_opc_get_link_status
:
8618 i40e_handle_link_event(pf
, &event
);
8620 case i40e_aqc_opc_send_msg_to_pf
:
8621 ret
= i40e_vc_process_vf_msg(pf
,
8622 le16_to_cpu(event
.desc
.retval
),
8623 le32_to_cpu(event
.desc
.cookie_high
),
8624 le32_to_cpu(event
.desc
.cookie_low
),
8628 case i40e_aqc_opc_lldp_update_mib
:
8629 dev_dbg(&pf
->pdev
->dev
, "ARQ: Update LLDP MIB event received\n");
8630 #ifdef CONFIG_I40E_DCB
8632 ret
= i40e_handle_lldp_event(pf
, &event
);
8634 #endif /* CONFIG_I40E_DCB */
8636 case i40e_aqc_opc_event_lan_overflow
:
8637 dev_dbg(&pf
->pdev
->dev
, "ARQ LAN queue overflow event received\n");
8638 i40e_handle_lan_overflow_event(pf
, &event
);
8640 case i40e_aqc_opc_send_msg_to_peer
:
8641 dev_info(&pf
->pdev
->dev
, "ARQ: Msg from other pf\n");
8643 case i40e_aqc_opc_nvm_erase
:
8644 case i40e_aqc_opc_nvm_update
:
8645 case i40e_aqc_opc_oem_post_update
:
8646 i40e_debug(&pf
->hw
, I40E_DEBUG_NVM
,
8647 "ARQ NVM operation 0x%04x completed\n",
8651 dev_info(&pf
->pdev
->dev
,
8652 "ARQ: Unknown event 0x%04x ignored\n",
8656 } while (i
++ < pf
->adminq_work_limit
);
8658 if (i
< pf
->adminq_work_limit
)
8659 clear_bit(__I40E_ADMINQ_EVENT_PENDING
, pf
->state
);
8661 /* re-enable Admin queue interrupt cause */
8662 val
= rd32(hw
, I40E_PFINT_ICR0_ENA
);
8663 val
|= I40E_PFINT_ICR0_ENA_ADMINQ_MASK
;
8664 wr32(hw
, I40E_PFINT_ICR0_ENA
, val
);
8667 kfree(event
.msg_buf
);
8671 * i40e_verify_eeprom - make sure eeprom is good to use
8672 * @pf: board private structure
8674 static void i40e_verify_eeprom(struct i40e_pf
*pf
)
8678 err
= i40e_diag_eeprom_test(&pf
->hw
);
8680 /* retry in case of garbage read */
8681 err
= i40e_diag_eeprom_test(&pf
->hw
);
8683 dev_info(&pf
->pdev
->dev
, "eeprom check failed (%d), Tx/Rx traffic disabled\n",
8685 set_bit(__I40E_BAD_EEPROM
, pf
->state
);
8689 if (!err
&& test_bit(__I40E_BAD_EEPROM
, pf
->state
)) {
8690 dev_info(&pf
->pdev
->dev
, "eeprom check passed, Tx/Rx traffic enabled\n");
8691 clear_bit(__I40E_BAD_EEPROM
, pf
->state
);
8696 * i40e_enable_pf_switch_lb
8697 * @pf: pointer to the PF structure
8699 * enable switch loop back or die - no point in a return value
8701 static void i40e_enable_pf_switch_lb(struct i40e_pf
*pf
)
8703 struct i40e_vsi
*vsi
= pf
->vsi
[pf
->lan_vsi
];
8704 struct i40e_vsi_context ctxt
;
8707 ctxt
.seid
= pf
->main_vsi_seid
;
8708 ctxt
.pf_num
= pf
->hw
.pf_id
;
8710 ret
= i40e_aq_get_vsi_params(&pf
->hw
, &ctxt
, NULL
);
8712 dev_info(&pf
->pdev
->dev
,
8713 "couldn't get PF vsi config, err %s aq_err %s\n",
8714 i40e_stat_str(&pf
->hw
, ret
),
8715 i40e_aq_str(&pf
->hw
, pf
->hw
.aq
.asq_last_status
));
8718 ctxt
.flags
= I40E_AQ_VSI_TYPE_PF
;
8719 ctxt
.info
.valid_sections
= cpu_to_le16(I40E_AQ_VSI_PROP_SWITCH_VALID
);
8720 ctxt
.info
.switch_id
|= cpu_to_le16(I40E_AQ_VSI_SW_ID_FLAG_ALLOW_LB
);
8722 ret
= i40e_aq_update_vsi_params(&vsi
->back
->hw
, &ctxt
, NULL
);
8724 dev_info(&pf
->pdev
->dev
,
8725 "update vsi switch failed, err %s aq_err %s\n",
8726 i40e_stat_str(&pf
->hw
, ret
),
8727 i40e_aq_str(&pf
->hw
, pf
->hw
.aq
.asq_last_status
));
8732 * i40e_disable_pf_switch_lb
8733 * @pf: pointer to the PF structure
8735 * disable switch loop back or die - no point in a return value
8737 static void i40e_disable_pf_switch_lb(struct i40e_pf
*pf
)
8739 struct i40e_vsi
*vsi
= pf
->vsi
[pf
->lan_vsi
];
8740 struct i40e_vsi_context ctxt
;
8743 ctxt
.seid
= pf
->main_vsi_seid
;
8744 ctxt
.pf_num
= pf
->hw
.pf_id
;
8746 ret
= i40e_aq_get_vsi_params(&pf
->hw
, &ctxt
, NULL
);
8748 dev_info(&pf
->pdev
->dev
,
8749 "couldn't get PF vsi config, err %s aq_err %s\n",
8750 i40e_stat_str(&pf
->hw
, ret
),
8751 i40e_aq_str(&pf
->hw
, pf
->hw
.aq
.asq_last_status
));
8754 ctxt
.flags
= I40E_AQ_VSI_TYPE_PF
;
8755 ctxt
.info
.valid_sections
= cpu_to_le16(I40E_AQ_VSI_PROP_SWITCH_VALID
);
8756 ctxt
.info
.switch_id
&= ~cpu_to_le16(I40E_AQ_VSI_SW_ID_FLAG_ALLOW_LB
);
8758 ret
= i40e_aq_update_vsi_params(&vsi
->back
->hw
, &ctxt
, NULL
);
8760 dev_info(&pf
->pdev
->dev
,
8761 "update vsi switch failed, err %s aq_err %s\n",
8762 i40e_stat_str(&pf
->hw
, ret
),
8763 i40e_aq_str(&pf
->hw
, pf
->hw
.aq
.asq_last_status
));
8768 * i40e_config_bridge_mode - Configure the HW bridge mode
8769 * @veb: pointer to the bridge instance
8771 * Configure the loop back mode for the LAN VSI that is downlink to the
8772 * specified HW bridge instance. It is expected this function is called
8773 * when a new HW bridge is instantiated.
8775 static void i40e_config_bridge_mode(struct i40e_veb
*veb
)
8777 struct i40e_pf
*pf
= veb
->pf
;
8779 if (pf
->hw
.debug_mask
& I40E_DEBUG_LAN
)
8780 dev_info(&pf
->pdev
->dev
, "enabling bridge mode: %s\n",
8781 veb
->bridge_mode
== BRIDGE_MODE_VEPA
? "VEPA" : "VEB");
8782 if (veb
->bridge_mode
& BRIDGE_MODE_VEPA
)
8783 i40e_disable_pf_switch_lb(pf
);
8785 i40e_enable_pf_switch_lb(pf
);
8789 * i40e_reconstitute_veb - rebuild the VEB and anything connected to it
8790 * @veb: pointer to the VEB instance
8792 * This is a recursive function that first builds the attached VSIs then
8793 * recurses in to build the next layer of VEB. We track the connections
8794 * through our own index numbers because the seid's from the HW could
8795 * change across the reset.
8797 static int i40e_reconstitute_veb(struct i40e_veb
*veb
)
8799 struct i40e_vsi
*ctl_vsi
= NULL
;
8800 struct i40e_pf
*pf
= veb
->pf
;
8804 /* build VSI that owns this VEB, temporarily attached to base VEB */
8805 for (v
= 0; v
< pf
->num_alloc_vsi
&& !ctl_vsi
; v
++) {
8807 pf
->vsi
[v
]->veb_idx
== veb
->idx
&&
8808 pf
->vsi
[v
]->flags
& I40E_VSI_FLAG_VEB_OWNER
) {
8809 ctl_vsi
= pf
->vsi
[v
];
8814 dev_info(&pf
->pdev
->dev
,
8815 "missing owner VSI for veb_idx %d\n", veb
->idx
);
8817 goto end_reconstitute
;
8819 if (ctl_vsi
!= pf
->vsi
[pf
->lan_vsi
])
8820 ctl_vsi
->uplink_seid
= pf
->vsi
[pf
->lan_vsi
]->uplink_seid
;
8821 ret
= i40e_add_vsi(ctl_vsi
);
8823 dev_info(&pf
->pdev
->dev
,
8824 "rebuild of veb_idx %d owner VSI failed: %d\n",
8826 goto end_reconstitute
;
8828 i40e_vsi_reset_stats(ctl_vsi
);
8830 /* create the VEB in the switch and move the VSI onto the VEB */
8831 ret
= i40e_add_veb(veb
, ctl_vsi
);
8833 goto end_reconstitute
;
8835 if (pf
->flags
& I40E_FLAG_VEB_MODE_ENABLED
)
8836 veb
->bridge_mode
= BRIDGE_MODE_VEB
;
8838 veb
->bridge_mode
= BRIDGE_MODE_VEPA
;
8839 i40e_config_bridge_mode(veb
);
8841 /* create the remaining VSIs attached to this VEB */
8842 for (v
= 0; v
< pf
->num_alloc_vsi
; v
++) {
8843 if (!pf
->vsi
[v
] || pf
->vsi
[v
] == ctl_vsi
)
8846 if (pf
->vsi
[v
]->veb_idx
== veb
->idx
) {
8847 struct i40e_vsi
*vsi
= pf
->vsi
[v
];
8849 vsi
->uplink_seid
= veb
->seid
;
8850 ret
= i40e_add_vsi(vsi
);
8852 dev_info(&pf
->pdev
->dev
,
8853 "rebuild of vsi_idx %d failed: %d\n",
8855 goto end_reconstitute
;
8857 i40e_vsi_reset_stats(vsi
);
8861 /* create any VEBs attached to this VEB - RECURSION */
8862 for (veb_idx
= 0; veb_idx
< I40E_MAX_VEB
; veb_idx
++) {
8863 if (pf
->veb
[veb_idx
] && pf
->veb
[veb_idx
]->veb_idx
== veb
->idx
) {
8864 pf
->veb
[veb_idx
]->uplink_seid
= veb
->seid
;
8865 ret
= i40e_reconstitute_veb(pf
->veb
[veb_idx
]);
8876 * i40e_get_capabilities - get info about the HW
8877 * @pf: the PF struct
8879 static int i40e_get_capabilities(struct i40e_pf
*pf
,
8880 enum i40e_admin_queue_opc list_type
)
8882 struct i40e_aqc_list_capabilities_element_resp
*cap_buf
;
8887 buf_len
= 40 * sizeof(struct i40e_aqc_list_capabilities_element_resp
);
8889 cap_buf
= kzalloc(buf_len
, GFP_KERNEL
);
8893 /* this loads the data into the hw struct for us */
8894 err
= i40e_aq_discover_capabilities(&pf
->hw
, cap_buf
, buf_len
,
8895 &data_size
, list_type
,
8897 /* data loaded, buffer no longer needed */
8900 if (pf
->hw
.aq
.asq_last_status
== I40E_AQ_RC_ENOMEM
) {
8901 /* retry with a larger buffer */
8902 buf_len
= data_size
;
8903 } else if (pf
->hw
.aq
.asq_last_status
!= I40E_AQ_RC_OK
) {
8904 dev_info(&pf
->pdev
->dev
,
8905 "capability discovery failed, err %s aq_err %s\n",
8906 i40e_stat_str(&pf
->hw
, err
),
8907 i40e_aq_str(&pf
->hw
,
8908 pf
->hw
.aq
.asq_last_status
));
8913 if (pf
->hw
.debug_mask
& I40E_DEBUG_USER
) {
8914 if (list_type
== i40e_aqc_opc_list_func_capabilities
) {
8915 dev_info(&pf
->pdev
->dev
,
8916 "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",
8917 pf
->hw
.pf_id
, pf
->hw
.func_caps
.num_vfs
,
8918 pf
->hw
.func_caps
.num_msix_vectors
,
8919 pf
->hw
.func_caps
.num_msix_vectors_vf
,
8920 pf
->hw
.func_caps
.fd_filters_guaranteed
,
8921 pf
->hw
.func_caps
.fd_filters_best_effort
,
8922 pf
->hw
.func_caps
.num_tx_qp
,
8923 pf
->hw
.func_caps
.num_vsis
);
8924 } else if (list_type
== i40e_aqc_opc_list_dev_capabilities
) {
8925 dev_info(&pf
->pdev
->dev
,
8926 "switch_mode=0x%04x, function_valid=0x%08x\n",
8927 pf
->hw
.dev_caps
.switch_mode
,
8928 pf
->hw
.dev_caps
.valid_functions
);
8929 dev_info(&pf
->pdev
->dev
,
8930 "SR-IOV=%d, num_vfs for all function=%u\n",
8931 pf
->hw
.dev_caps
.sr_iov_1_1
,
8932 pf
->hw
.dev_caps
.num_vfs
);
8933 dev_info(&pf
->pdev
->dev
,
8934 "num_vsis=%u, num_rx:%u, num_tx=%u\n",
8935 pf
->hw
.dev_caps
.num_vsis
,
8936 pf
->hw
.dev_caps
.num_rx_qp
,
8937 pf
->hw
.dev_caps
.num_tx_qp
);
8940 if (list_type
== i40e_aqc_opc_list_func_capabilities
) {
8941 #define DEF_NUM_VSI (1 + (pf->hw.func_caps.fcoe ? 1 : 0) \
8942 + pf->hw.func_caps.num_vfs)
8943 if (pf
->hw
.revision_id
== 0 &&
8944 pf
->hw
.func_caps
.num_vsis
< DEF_NUM_VSI
) {
8945 dev_info(&pf
->pdev
->dev
,
8946 "got num_vsis %d, setting num_vsis to %d\n",
8947 pf
->hw
.func_caps
.num_vsis
, DEF_NUM_VSI
);
8948 pf
->hw
.func_caps
.num_vsis
= DEF_NUM_VSI
;
8954 static int i40e_vsi_clear(struct i40e_vsi
*vsi
);
8957 * i40e_fdir_sb_setup - initialize the Flow Director resources for Sideband
8958 * @pf: board private structure
8960 static void i40e_fdir_sb_setup(struct i40e_pf
*pf
)
8962 struct i40e_vsi
*vsi
;
8964 /* quick workaround for an NVM issue that leaves a critical register
8967 if (!rd32(&pf
->hw
, I40E_GLQF_HKEY(0))) {
8968 static const u32 hkey
[] = {
8969 0xe640d33f, 0xcdfe98ab, 0x73fa7161, 0x0d7a7d36,
8970 0xeacb7d61, 0xaa4f05b6, 0x9c5c89ed, 0xfc425ddb,
8971 0xa4654832, 0xfc7461d4, 0x8f827619, 0xf5c63c21,
8975 for (i
= 0; i
<= I40E_GLQF_HKEY_MAX_INDEX
; i
++)
8976 wr32(&pf
->hw
, I40E_GLQF_HKEY(i
), hkey
[i
]);
8979 if (!(pf
->flags
& I40E_FLAG_FD_SB_ENABLED
))
8982 /* find existing VSI and see if it needs configuring */
8983 vsi
= i40e_find_vsi_by_type(pf
, I40E_VSI_FDIR
);
8985 /* create a new VSI if none exists */
8987 vsi
= i40e_vsi_setup(pf
, I40E_VSI_FDIR
,
8988 pf
->vsi
[pf
->lan_vsi
]->seid
, 0);
8990 dev_info(&pf
->pdev
->dev
, "Couldn't create FDir VSI\n");
8991 pf
->flags
&= ~I40E_FLAG_FD_SB_ENABLED
;
8992 pf
->flags
|= I40E_FLAG_FD_SB_INACTIVE
;
8997 i40e_vsi_setup_irqhandler(vsi
, i40e_fdir_clean_ring
);
9001 * i40e_fdir_teardown - release the Flow Director resources
9002 * @pf: board private structure
9004 static void i40e_fdir_teardown(struct i40e_pf
*pf
)
9006 struct i40e_vsi
*vsi
;
9008 i40e_fdir_filter_exit(pf
);
9009 vsi
= i40e_find_vsi_by_type(pf
, I40E_VSI_FDIR
);
9011 i40e_vsi_release(vsi
);
9015 * i40e_rebuild_cloud_filters - Rebuilds cloud filters for VSIs
9017 * @seid: seid of main or channel VSIs
9019 * Rebuilds cloud filters associated with main VSI and channel VSIs if they
9020 * existed before reset
9022 static int i40e_rebuild_cloud_filters(struct i40e_vsi
*vsi
, u16 seid
)
9024 struct i40e_cloud_filter
*cfilter
;
9025 struct i40e_pf
*pf
= vsi
->back
;
9026 struct hlist_node
*node
;
9029 /* Add cloud filters back if they exist */
9030 hlist_for_each_entry_safe(cfilter
, node
, &pf
->cloud_filter_list
,
9032 if (cfilter
->seid
!= seid
)
9035 if (cfilter
->dst_port
)
9036 ret
= i40e_add_del_cloud_filter_big_buf(vsi
, cfilter
,
9039 ret
= i40e_add_del_cloud_filter(vsi
, cfilter
, true);
9042 dev_dbg(&pf
->pdev
->dev
,
9043 "Failed to rebuild cloud filter, err %s aq_err %s\n",
9044 i40e_stat_str(&pf
->hw
, ret
),
9045 i40e_aq_str(&pf
->hw
,
9046 pf
->hw
.aq
.asq_last_status
));
9054 * i40e_rebuild_channels - Rebuilds channel VSIs if they existed before reset
9057 * Rebuilds channel VSIs if they existed before reset
9059 static int i40e_rebuild_channels(struct i40e_vsi
*vsi
)
9061 struct i40e_channel
*ch
, *ch_tmp
;
9064 if (list_empty(&vsi
->ch_list
))
9067 list_for_each_entry_safe(ch
, ch_tmp
, &vsi
->ch_list
, list
) {
9068 if (!ch
->initialized
)
9070 /* Proceed with creation of channel (VMDq2) VSI */
9071 ret
= i40e_add_channel(vsi
->back
, vsi
->uplink_seid
, ch
);
9073 dev_info(&vsi
->back
->pdev
->dev
,
9074 "failed to rebuild channels using uplink_seid %u\n",
9078 if (ch
->max_tx_rate
) {
9079 u64 credits
= ch
->max_tx_rate
;
9081 if (i40e_set_bw_limit(vsi
, ch
->seid
,
9085 do_div(credits
, I40E_BW_CREDIT_DIVISOR
);
9086 dev_dbg(&vsi
->back
->pdev
->dev
,
9087 "Set tx rate of %llu Mbps (count of 50Mbps %llu) for vsi->seid %u\n",
9092 ret
= i40e_rebuild_cloud_filters(vsi
, ch
->seid
);
9094 dev_dbg(&vsi
->back
->pdev
->dev
,
9095 "Failed to rebuild cloud filters for channel VSI %u\n",
9104 * i40e_prep_for_reset - prep for the core to reset
9105 * @pf: board private structure
9106 * @lock_acquired: indicates whether or not the lock has been acquired
9107 * before this function was called.
9109 * Close up the VFs and other things in prep for PF Reset.
9111 static void i40e_prep_for_reset(struct i40e_pf
*pf
, bool lock_acquired
)
9113 struct i40e_hw
*hw
= &pf
->hw
;
9114 i40e_status ret
= 0;
9117 clear_bit(__I40E_RESET_INTR_RECEIVED
, pf
->state
);
9118 if (test_and_set_bit(__I40E_RESET_RECOVERY_PENDING
, pf
->state
))
9120 if (i40e_check_asq_alive(&pf
->hw
))
9121 i40e_vc_notify_reset(pf
);
9123 dev_dbg(&pf
->pdev
->dev
, "Tearing down internal switch for reset\n");
9125 /* quiesce the VSIs and their queues that are not already DOWN */
9126 /* pf_quiesce_all_vsi modifies netdev structures -rtnl_lock needed */
9129 i40e_pf_quiesce_all_vsi(pf
);
9133 for (v
= 0; v
< pf
->num_alloc_vsi
; v
++) {
9135 pf
->vsi
[v
]->seid
= 0;
9138 i40e_shutdown_adminq(&pf
->hw
);
9140 /* call shutdown HMC */
9141 if (hw
->hmc
.hmc_obj
) {
9142 ret
= i40e_shutdown_lan_hmc(hw
);
9144 dev_warn(&pf
->pdev
->dev
,
9145 "shutdown_lan_hmc failed: %d\n", ret
);
9150 * i40e_send_version - update firmware with driver version
9153 static void i40e_send_version(struct i40e_pf
*pf
)
9155 struct i40e_driver_version dv
;
9157 dv
.major_version
= DRV_VERSION_MAJOR
;
9158 dv
.minor_version
= DRV_VERSION_MINOR
;
9159 dv
.build_version
= DRV_VERSION_BUILD
;
9160 dv
.subbuild_version
= 0;
9161 strlcpy(dv
.driver_string
, DRV_VERSION
, sizeof(dv
.driver_string
));
9162 i40e_aq_send_driver_version(&pf
->hw
, &dv
, NULL
);
9166 * i40e_get_oem_version - get OEM specific version information
9167 * @hw: pointer to the hardware structure
9169 static void i40e_get_oem_version(struct i40e_hw
*hw
)
9171 u16 block_offset
= 0xffff;
9172 u16 block_length
= 0;
9173 u16 capabilities
= 0;
9177 #define I40E_SR_NVM_OEM_VERSION_PTR 0x1B
9178 #define I40E_NVM_OEM_LENGTH_OFFSET 0x00
9179 #define I40E_NVM_OEM_CAPABILITIES_OFFSET 0x01
9180 #define I40E_NVM_OEM_GEN_OFFSET 0x02
9181 #define I40E_NVM_OEM_RELEASE_OFFSET 0x03
9182 #define I40E_NVM_OEM_CAPABILITIES_MASK 0x000F
9183 #define I40E_NVM_OEM_LENGTH 3
9185 /* Check if pointer to OEM version block is valid. */
9186 i40e_read_nvm_word(hw
, I40E_SR_NVM_OEM_VERSION_PTR
, &block_offset
);
9187 if (block_offset
== 0xffff)
9190 /* Check if OEM version block has correct length. */
9191 i40e_read_nvm_word(hw
, block_offset
+ I40E_NVM_OEM_LENGTH_OFFSET
,
9193 if (block_length
< I40E_NVM_OEM_LENGTH
)
9196 /* Check if OEM version format is as expected. */
9197 i40e_read_nvm_word(hw
, block_offset
+ I40E_NVM_OEM_CAPABILITIES_OFFSET
,
9199 if ((capabilities
& I40E_NVM_OEM_CAPABILITIES_MASK
) != 0)
9202 i40e_read_nvm_word(hw
, block_offset
+ I40E_NVM_OEM_GEN_OFFSET
,
9204 i40e_read_nvm_word(hw
, block_offset
+ I40E_NVM_OEM_RELEASE_OFFSET
,
9206 hw
->nvm
.oem_ver
= (gen_snap
<< I40E_OEM_SNAP_SHIFT
) | release
;
9207 hw
->nvm
.eetrack
= I40E_OEM_EETRACK_ID
;
9211 * i40e_reset - wait for core reset to finish reset, reset pf if corer not seen
9212 * @pf: board private structure
9214 static int i40e_reset(struct i40e_pf
*pf
)
9216 struct i40e_hw
*hw
= &pf
->hw
;
9219 ret
= i40e_pf_reset(hw
);
9221 dev_info(&pf
->pdev
->dev
, "PF reset failed, %d\n", ret
);
9222 set_bit(__I40E_RESET_FAILED
, pf
->state
);
9223 clear_bit(__I40E_RESET_RECOVERY_PENDING
, pf
->state
);
9231 * i40e_rebuild - rebuild using a saved config
9232 * @pf: board private structure
9233 * @reinit: if the Main VSI needs to re-initialized.
9234 * @lock_acquired: indicates whether or not the lock has been acquired
9235 * before this function was called.
9237 static void i40e_rebuild(struct i40e_pf
*pf
, bool reinit
, bool lock_acquired
)
9239 struct i40e_vsi
*vsi
= pf
->vsi
[pf
->lan_vsi
];
9240 struct i40e_hw
*hw
= &pf
->hw
;
9241 u8 set_fc_aq_fail
= 0;
9246 if (test_bit(__I40E_DOWN
, pf
->state
))
9247 goto clear_recovery
;
9248 dev_dbg(&pf
->pdev
->dev
, "Rebuilding internal switch\n");
9250 /* rebuild the basics for the AdminQ, HMC, and initial HW switch */
9251 ret
= i40e_init_adminq(&pf
->hw
);
9253 dev_info(&pf
->pdev
->dev
, "Rebuild AdminQ failed, err %s aq_err %s\n",
9254 i40e_stat_str(&pf
->hw
, ret
),
9255 i40e_aq_str(&pf
->hw
, pf
->hw
.aq
.asq_last_status
));
9256 goto clear_recovery
;
9258 i40e_get_oem_version(&pf
->hw
);
9260 /* re-verify the eeprom if we just had an EMP reset */
9261 if (test_and_clear_bit(__I40E_EMP_RESET_INTR_RECEIVED
, pf
->state
))
9262 i40e_verify_eeprom(pf
);
9264 i40e_clear_pxe_mode(hw
);
9265 ret
= i40e_get_capabilities(pf
, i40e_aqc_opc_list_func_capabilities
);
9267 goto end_core_reset
;
9269 ret
= i40e_init_lan_hmc(hw
, hw
->func_caps
.num_tx_qp
,
9270 hw
->func_caps
.num_rx_qp
, 0, 0);
9272 dev_info(&pf
->pdev
->dev
, "init_lan_hmc failed: %d\n", ret
);
9273 goto end_core_reset
;
9275 ret
= i40e_configure_lan_hmc(hw
, I40E_HMC_MODEL_DIRECT_ONLY
);
9277 dev_info(&pf
->pdev
->dev
, "configure_lan_hmc failed: %d\n", ret
);
9278 goto end_core_reset
;
9281 #ifdef CONFIG_I40E_DCB
9282 ret
= i40e_init_pf_dcb(pf
);
9284 dev_info(&pf
->pdev
->dev
, "DCB init failed %d, disabled\n", ret
);
9285 pf
->flags
&= ~I40E_FLAG_DCB_CAPABLE
;
9286 /* Continue without DCB enabled */
9288 #endif /* CONFIG_I40E_DCB */
9289 /* do basic switch setup */
9292 ret
= i40e_setup_pf_switch(pf
, reinit
);
9296 /* The driver only wants link up/down and module qualification
9297 * reports from firmware. Note the negative logic.
9299 ret
= i40e_aq_set_phy_int_mask(&pf
->hw
,
9300 ~(I40E_AQ_EVENT_LINK_UPDOWN
|
9301 I40E_AQ_EVENT_MEDIA_NA
|
9302 I40E_AQ_EVENT_MODULE_QUAL_FAIL
), NULL
);
9304 dev_info(&pf
->pdev
->dev
, "set phy mask fail, err %s aq_err %s\n",
9305 i40e_stat_str(&pf
->hw
, ret
),
9306 i40e_aq_str(&pf
->hw
, pf
->hw
.aq
.asq_last_status
));
9308 /* make sure our flow control settings are restored */
9309 ret
= i40e_set_fc(&pf
->hw
, &set_fc_aq_fail
, true);
9311 dev_dbg(&pf
->pdev
->dev
, "setting flow control: ret = %s last_status = %s\n",
9312 i40e_stat_str(&pf
->hw
, ret
),
9313 i40e_aq_str(&pf
->hw
, pf
->hw
.aq
.asq_last_status
));
9315 /* Rebuild the VSIs and VEBs that existed before reset.
9316 * They are still in our local switch element arrays, so only
9317 * need to rebuild the switch model in the HW.
9319 * If there were VEBs but the reconstitution failed, we'll try
9320 * try to recover minimal use by getting the basic PF VSI working.
9322 if (vsi
->uplink_seid
!= pf
->mac_seid
) {
9323 dev_dbg(&pf
->pdev
->dev
, "attempting to rebuild switch\n");
9324 /* find the one VEB connected to the MAC, and find orphans */
9325 for (v
= 0; v
< I40E_MAX_VEB
; v
++) {
9329 if (pf
->veb
[v
]->uplink_seid
== pf
->mac_seid
||
9330 pf
->veb
[v
]->uplink_seid
== 0) {
9331 ret
= i40e_reconstitute_veb(pf
->veb
[v
]);
9336 /* If Main VEB failed, we're in deep doodoo,
9337 * so give up rebuilding the switch and set up
9338 * for minimal rebuild of PF VSI.
9339 * If orphan failed, we'll report the error
9340 * but try to keep going.
9342 if (pf
->veb
[v
]->uplink_seid
== pf
->mac_seid
) {
9343 dev_info(&pf
->pdev
->dev
,
9344 "rebuild of switch failed: %d, will try to set up simple PF connection\n",
9346 vsi
->uplink_seid
= pf
->mac_seid
;
9348 } else if (pf
->veb
[v
]->uplink_seid
== 0) {
9349 dev_info(&pf
->pdev
->dev
,
9350 "rebuild of orphan VEB failed: %d\n",
9357 if (vsi
->uplink_seid
== pf
->mac_seid
) {
9358 dev_dbg(&pf
->pdev
->dev
, "attempting to rebuild PF VSI\n");
9359 /* no VEB, so rebuild only the Main VSI */
9360 ret
= i40e_add_vsi(vsi
);
9362 dev_info(&pf
->pdev
->dev
,
9363 "rebuild of Main VSI failed: %d\n", ret
);
9368 if (vsi
->mqprio_qopt
.max_rate
[0]) {
9369 u64 max_tx_rate
= vsi
->mqprio_qopt
.max_rate
[0];
9372 do_div(max_tx_rate
, I40E_BW_MBPS_DIVISOR
);
9373 ret
= i40e_set_bw_limit(vsi
, vsi
->seid
, max_tx_rate
);
9377 credits
= max_tx_rate
;
9378 do_div(credits
, I40E_BW_CREDIT_DIVISOR
);
9379 dev_dbg(&vsi
->back
->pdev
->dev
,
9380 "Set tx rate of %llu Mbps (count of 50Mbps %llu) for vsi->seid %u\n",
9386 ret
= i40e_rebuild_cloud_filters(vsi
, vsi
->seid
);
9390 /* PF Main VSI is rebuild by now, go ahead and rebuild channel VSIs
9391 * for this main VSI if they exist
9393 ret
= i40e_rebuild_channels(vsi
);
9397 /* Reconfigure hardware for allowing smaller MSS in the case
9398 * of TSO, so that we avoid the MDD being fired and causing
9399 * a reset in the case of small MSS+TSO.
9401 #define I40E_REG_MSS 0x000E64DC
9402 #define I40E_REG_MSS_MIN_MASK 0x3FF0000
9403 #define I40E_64BYTE_MSS 0x400000
9404 val
= rd32(hw
, I40E_REG_MSS
);
9405 if ((val
& I40E_REG_MSS_MIN_MASK
) > I40E_64BYTE_MSS
) {
9406 val
&= ~I40E_REG_MSS_MIN_MASK
;
9407 val
|= I40E_64BYTE_MSS
;
9408 wr32(hw
, I40E_REG_MSS
, val
);
9411 if (pf
->hw_features
& I40E_HW_RESTART_AUTONEG
) {
9413 ret
= i40e_aq_set_link_restart_an(&pf
->hw
, true, NULL
);
9415 dev_info(&pf
->pdev
->dev
, "link restart failed, err %s aq_err %s\n",
9416 i40e_stat_str(&pf
->hw
, ret
),
9417 i40e_aq_str(&pf
->hw
,
9418 pf
->hw
.aq
.asq_last_status
));
9420 /* reinit the misc interrupt */
9421 if (pf
->flags
& I40E_FLAG_MSIX_ENABLED
)
9422 ret
= i40e_setup_misc_vector(pf
);
9424 /* Add a filter to drop all Flow control frames from any VSI from being
9425 * transmitted. By doing so we stop a malicious VF from sending out
9426 * PAUSE or PFC frames and potentially controlling traffic for other
9428 * The FW can still send Flow control frames if enabled.
9430 i40e_add_filter_to_drop_tx_flow_control_frames(&pf
->hw
,
9433 /* restart the VSIs that were rebuilt and running before the reset */
9434 i40e_pf_unquiesce_all_vsi(pf
);
9436 /* Release the RTNL lock before we start resetting VFs */
9440 /* Restore promiscuous settings */
9441 ret
= i40e_set_promiscuous(pf
, pf
->cur_promisc
);
9443 dev_warn(&pf
->pdev
->dev
,
9444 "Failed to restore promiscuous setting: %s, err %s aq_err %s\n",
9445 pf
->cur_promisc
? "on" : "off",
9446 i40e_stat_str(&pf
->hw
, ret
),
9447 i40e_aq_str(&pf
->hw
, pf
->hw
.aq
.asq_last_status
));
9449 i40e_reset_all_vfs(pf
, true);
9451 /* tell the firmware that we're starting */
9452 i40e_send_version(pf
);
9454 /* We've already released the lock, so don't do it again */
9455 goto end_core_reset
;
9461 clear_bit(__I40E_RESET_FAILED
, pf
->state
);
9463 clear_bit(__I40E_RESET_RECOVERY_PENDING
, pf
->state
);
9467 * i40e_reset_and_rebuild - reset and rebuild using a saved config
9468 * @pf: board private structure
9469 * @reinit: if the Main VSI needs to re-initialized.
9470 * @lock_acquired: indicates whether or not the lock has been acquired
9471 * before this function was called.
9473 static void i40e_reset_and_rebuild(struct i40e_pf
*pf
, bool reinit
,
9477 /* Now we wait for GRST to settle out.
9478 * We don't have to delete the VEBs or VSIs from the hw switch
9479 * because the reset will make them disappear.
9481 ret
= i40e_reset(pf
);
9483 i40e_rebuild(pf
, reinit
, lock_acquired
);
9487 * i40e_handle_reset_warning - prep for the PF to reset, reset and rebuild
9488 * @pf: board private structure
9490 * Close up the VFs and other things in prep for a Core Reset,
9491 * then get ready to rebuild the world.
9492 * @lock_acquired: indicates whether or not the lock has been acquired
9493 * before this function was called.
9495 static void i40e_handle_reset_warning(struct i40e_pf
*pf
, bool lock_acquired
)
9497 i40e_prep_for_reset(pf
, lock_acquired
);
9498 i40e_reset_and_rebuild(pf
, false, lock_acquired
);
9502 * i40e_handle_mdd_event
9503 * @pf: pointer to the PF structure
9505 * Called from the MDD irq handler to identify possibly malicious vfs
9507 static void i40e_handle_mdd_event(struct i40e_pf
*pf
)
9509 struct i40e_hw
*hw
= &pf
->hw
;
9510 bool mdd_detected
= false;
9511 bool pf_mdd_detected
= false;
9516 if (!test_bit(__I40E_MDD_EVENT_PENDING
, pf
->state
))
9519 /* find what triggered the MDD event */
9520 reg
= rd32(hw
, I40E_GL_MDET_TX
);
9521 if (reg
& I40E_GL_MDET_TX_VALID_MASK
) {
9522 u8 pf_num
= (reg
& I40E_GL_MDET_TX_PF_NUM_MASK
) >>
9523 I40E_GL_MDET_TX_PF_NUM_SHIFT
;
9524 u16 vf_num
= (reg
& I40E_GL_MDET_TX_VF_NUM_MASK
) >>
9525 I40E_GL_MDET_TX_VF_NUM_SHIFT
;
9526 u8 event
= (reg
& I40E_GL_MDET_TX_EVENT_MASK
) >>
9527 I40E_GL_MDET_TX_EVENT_SHIFT
;
9528 u16 queue
= ((reg
& I40E_GL_MDET_TX_QUEUE_MASK
) >>
9529 I40E_GL_MDET_TX_QUEUE_SHIFT
) -
9530 pf
->hw
.func_caps
.base_queue
;
9531 if (netif_msg_tx_err(pf
))
9532 dev_info(&pf
->pdev
->dev
, "Malicious Driver Detection event 0x%02x on TX queue %d PF number 0x%02x VF number 0x%02x\n",
9533 event
, queue
, pf_num
, vf_num
);
9534 wr32(hw
, I40E_GL_MDET_TX
, 0xffffffff);
9535 mdd_detected
= true;
9537 reg
= rd32(hw
, I40E_GL_MDET_RX
);
9538 if (reg
& I40E_GL_MDET_RX_VALID_MASK
) {
9539 u8 func
= (reg
& I40E_GL_MDET_RX_FUNCTION_MASK
) >>
9540 I40E_GL_MDET_RX_FUNCTION_SHIFT
;
9541 u8 event
= (reg
& I40E_GL_MDET_RX_EVENT_MASK
) >>
9542 I40E_GL_MDET_RX_EVENT_SHIFT
;
9543 u16 queue
= ((reg
& I40E_GL_MDET_RX_QUEUE_MASK
) >>
9544 I40E_GL_MDET_RX_QUEUE_SHIFT
) -
9545 pf
->hw
.func_caps
.base_queue
;
9546 if (netif_msg_rx_err(pf
))
9547 dev_info(&pf
->pdev
->dev
, "Malicious Driver Detection event 0x%02x on RX queue %d of function 0x%02x\n",
9548 event
, queue
, func
);
9549 wr32(hw
, I40E_GL_MDET_RX
, 0xffffffff);
9550 mdd_detected
= true;
9554 reg
= rd32(hw
, I40E_PF_MDET_TX
);
9555 if (reg
& I40E_PF_MDET_TX_VALID_MASK
) {
9556 wr32(hw
, I40E_PF_MDET_TX
, 0xFFFF);
9557 dev_info(&pf
->pdev
->dev
, "TX driver issue detected, PF reset issued\n");
9558 pf_mdd_detected
= true;
9560 reg
= rd32(hw
, I40E_PF_MDET_RX
);
9561 if (reg
& I40E_PF_MDET_RX_VALID_MASK
) {
9562 wr32(hw
, I40E_PF_MDET_RX
, 0xFFFF);
9563 dev_info(&pf
->pdev
->dev
, "RX driver issue detected, PF reset issued\n");
9564 pf_mdd_detected
= true;
9566 /* Queue belongs to the PF, initiate a reset */
9567 if (pf_mdd_detected
) {
9568 set_bit(__I40E_PF_RESET_REQUESTED
, pf
->state
);
9569 i40e_service_event_schedule(pf
);
9573 /* see if one of the VFs needs its hand slapped */
9574 for (i
= 0; i
< pf
->num_alloc_vfs
&& mdd_detected
; i
++) {
9576 reg
= rd32(hw
, I40E_VP_MDET_TX(i
));
9577 if (reg
& I40E_VP_MDET_TX_VALID_MASK
) {
9578 wr32(hw
, I40E_VP_MDET_TX(i
), 0xFFFF);
9579 vf
->num_mdd_events
++;
9580 dev_info(&pf
->pdev
->dev
, "TX driver issue detected on VF %d\n",
9584 reg
= rd32(hw
, I40E_VP_MDET_RX(i
));
9585 if (reg
& I40E_VP_MDET_RX_VALID_MASK
) {
9586 wr32(hw
, I40E_VP_MDET_RX(i
), 0xFFFF);
9587 vf
->num_mdd_events
++;
9588 dev_info(&pf
->pdev
->dev
, "RX driver issue detected on VF %d\n",
9592 if (vf
->num_mdd_events
> I40E_DEFAULT_NUM_MDD_EVENTS_ALLOWED
) {
9593 dev_info(&pf
->pdev
->dev
,
9594 "Too many MDD events on VF %d, disabled\n", i
);
9595 dev_info(&pf
->pdev
->dev
,
9596 "Use PF Control I/F to re-enable the VF\n");
9597 set_bit(I40E_VF_STATE_DISABLED
, &vf
->vf_states
);
9601 /* re-enable mdd interrupt cause */
9602 clear_bit(__I40E_MDD_EVENT_PENDING
, pf
->state
);
9603 reg
= rd32(hw
, I40E_PFINT_ICR0_ENA
);
9604 reg
|= I40E_PFINT_ICR0_ENA_MAL_DETECT_MASK
;
9605 wr32(hw
, I40E_PFINT_ICR0_ENA
, reg
);
9609 static const char *i40e_tunnel_name(struct i40e_udp_port_config
*port
)
9611 switch (port
->type
) {
9612 case UDP_TUNNEL_TYPE_VXLAN
:
9614 case UDP_TUNNEL_TYPE_GENEVE
:
9622 * i40e_sync_udp_filters - Trigger a sync event for existing UDP filters
9623 * @pf: board private structure
9625 static void i40e_sync_udp_filters(struct i40e_pf
*pf
)
9629 /* loop through and set pending bit for all active UDP filters */
9630 for (i
= 0; i
< I40E_MAX_PF_UDP_OFFLOAD_PORTS
; i
++) {
9631 if (pf
->udp_ports
[i
].port
)
9632 pf
->pending_udp_bitmap
|= BIT_ULL(i
);
9635 pf
->flags
|= I40E_FLAG_UDP_FILTER_SYNC
;
9639 * i40e_sync_udp_filters_subtask - Sync the VSI filter list with HW
9640 * @pf: board private structure
9642 static void i40e_sync_udp_filters_subtask(struct i40e_pf
*pf
)
9644 struct i40e_hw
*hw
= &pf
->hw
;
9649 if (!(pf
->flags
& I40E_FLAG_UDP_FILTER_SYNC
))
9652 pf
->flags
&= ~I40E_FLAG_UDP_FILTER_SYNC
;
9654 for (i
= 0; i
< I40E_MAX_PF_UDP_OFFLOAD_PORTS
; i
++) {
9655 if (pf
->pending_udp_bitmap
& BIT_ULL(i
)) {
9656 pf
->pending_udp_bitmap
&= ~BIT_ULL(i
);
9657 port
= pf
->udp_ports
[i
].port
;
9659 ret
= i40e_aq_add_udp_tunnel(hw
, port
,
9660 pf
->udp_ports
[i
].type
,
9663 ret
= i40e_aq_del_udp_tunnel(hw
, i
, NULL
);
9666 dev_info(&pf
->pdev
->dev
,
9667 "%s %s port %d, index %d failed, err %s aq_err %s\n",
9668 i40e_tunnel_name(&pf
->udp_ports
[i
]),
9669 port
? "add" : "delete",
9671 i40e_stat_str(&pf
->hw
, ret
),
9672 i40e_aq_str(&pf
->hw
,
9673 pf
->hw
.aq
.asq_last_status
));
9674 pf
->udp_ports
[i
].port
= 0;
9681 * i40e_service_task - Run the driver's async subtasks
9682 * @work: pointer to work_struct containing our data
9684 static void i40e_service_task(struct work_struct
*work
)
9686 struct i40e_pf
*pf
= container_of(work
,
9689 unsigned long start_time
= jiffies
;
9691 /* don't bother with service tasks if a reset is in progress */
9692 if (test_bit(__I40E_RESET_RECOVERY_PENDING
, pf
->state
))
9695 if (test_and_set_bit(__I40E_SERVICE_SCHED
, pf
->state
))
9698 i40e_detect_recover_hung(pf
);
9699 i40e_sync_filters_subtask(pf
);
9700 i40e_reset_subtask(pf
);
9701 i40e_handle_mdd_event(pf
);
9702 i40e_vc_process_vflr_event(pf
);
9703 i40e_watchdog_subtask(pf
);
9704 i40e_fdir_reinit_subtask(pf
);
9705 if (pf
->flags
& I40E_FLAG_CLIENT_RESET
) {
9706 /* Client subtask will reopen next time through. */
9707 i40e_notify_client_of_netdev_close(pf
->vsi
[pf
->lan_vsi
], true);
9708 pf
->flags
&= ~I40E_FLAG_CLIENT_RESET
;
9710 i40e_client_subtask(pf
);
9711 if (pf
->flags
& I40E_FLAG_CLIENT_L2_CHANGE
) {
9712 i40e_notify_client_of_l2_param_changes(
9713 pf
->vsi
[pf
->lan_vsi
]);
9714 pf
->flags
&= ~I40E_FLAG_CLIENT_L2_CHANGE
;
9717 i40e_sync_filters_subtask(pf
);
9718 i40e_sync_udp_filters_subtask(pf
);
9719 i40e_clean_adminq_subtask(pf
);
9721 /* flush memory to make sure state is correct before next watchdog */
9722 smp_mb__before_atomic();
9723 clear_bit(__I40E_SERVICE_SCHED
, pf
->state
);
9725 /* If the tasks have taken longer than one timer cycle or there
9726 * is more work to be done, reschedule the service task now
9727 * rather than wait for the timer to tick again.
9729 if (time_after(jiffies
, (start_time
+ pf
->service_timer_period
)) ||
9730 test_bit(__I40E_ADMINQ_EVENT_PENDING
, pf
->state
) ||
9731 test_bit(__I40E_MDD_EVENT_PENDING
, pf
->state
) ||
9732 test_bit(__I40E_VFLR_EVENT_PENDING
, pf
->state
))
9733 i40e_service_event_schedule(pf
);
9737 * i40e_service_timer - timer callback
9738 * @data: pointer to PF struct
9740 static void i40e_service_timer(struct timer_list
*t
)
9742 struct i40e_pf
*pf
= from_timer(pf
, t
, service_timer
);
9744 mod_timer(&pf
->service_timer
,
9745 round_jiffies(jiffies
+ pf
->service_timer_period
));
9746 i40e_service_event_schedule(pf
);
9750 * i40e_set_num_rings_in_vsi - Determine number of rings in the VSI
9751 * @vsi: the VSI being configured
9753 static int i40e_set_num_rings_in_vsi(struct i40e_vsi
*vsi
)
9755 struct i40e_pf
*pf
= vsi
->back
;
9757 switch (vsi
->type
) {
9759 vsi
->alloc_queue_pairs
= pf
->num_lan_qps
;
9760 vsi
->num_desc
= ALIGN(I40E_DEFAULT_NUM_DESCRIPTORS
,
9761 I40E_REQ_DESCRIPTOR_MULTIPLE
);
9762 if (pf
->flags
& I40E_FLAG_MSIX_ENABLED
)
9763 vsi
->num_q_vectors
= pf
->num_lan_msix
;
9765 vsi
->num_q_vectors
= 1;
9770 vsi
->alloc_queue_pairs
= 1;
9771 vsi
->num_desc
= ALIGN(I40E_FDIR_RING_COUNT
,
9772 I40E_REQ_DESCRIPTOR_MULTIPLE
);
9773 vsi
->num_q_vectors
= pf
->num_fdsb_msix
;
9776 case I40E_VSI_VMDQ2
:
9777 vsi
->alloc_queue_pairs
= pf
->num_vmdq_qps
;
9778 vsi
->num_desc
= ALIGN(I40E_DEFAULT_NUM_DESCRIPTORS
,
9779 I40E_REQ_DESCRIPTOR_MULTIPLE
);
9780 vsi
->num_q_vectors
= pf
->num_vmdq_msix
;
9783 case I40E_VSI_SRIOV
:
9784 vsi
->alloc_queue_pairs
= pf
->num_vf_qps
;
9785 vsi
->num_desc
= ALIGN(I40E_DEFAULT_NUM_DESCRIPTORS
,
9786 I40E_REQ_DESCRIPTOR_MULTIPLE
);
9798 * i40e_vsi_alloc_arrays - Allocate queue and vector pointer arrays for the vsi
9800 * @alloc_qvectors: a bool to specify if q_vectors need to be allocated.
9802 * On error: returns error code (negative)
9803 * On success: returns 0
9805 static int i40e_vsi_alloc_arrays(struct i40e_vsi
*vsi
, bool alloc_qvectors
)
9807 struct i40e_ring
**next_rings
;
9811 /* allocate memory for both Tx, XDP Tx and Rx ring pointers */
9812 size
= sizeof(struct i40e_ring
*) * vsi
->alloc_queue_pairs
*
9813 (i40e_enabled_xdp_vsi(vsi
) ? 3 : 2);
9814 vsi
->tx_rings
= kzalloc(size
, GFP_KERNEL
);
9817 next_rings
= vsi
->tx_rings
+ vsi
->alloc_queue_pairs
;
9818 if (i40e_enabled_xdp_vsi(vsi
)) {
9819 vsi
->xdp_rings
= next_rings
;
9820 next_rings
+= vsi
->alloc_queue_pairs
;
9822 vsi
->rx_rings
= next_rings
;
9824 if (alloc_qvectors
) {
9825 /* allocate memory for q_vector pointers */
9826 size
= sizeof(struct i40e_q_vector
*) * vsi
->num_q_vectors
;
9827 vsi
->q_vectors
= kzalloc(size
, GFP_KERNEL
);
9828 if (!vsi
->q_vectors
) {
9836 kfree(vsi
->tx_rings
);
9841 * i40e_vsi_mem_alloc - Allocates the next available struct vsi in the PF
9842 * @pf: board private structure
9843 * @type: type of VSI
9845 * On error: returns error code (negative)
9846 * On success: returns vsi index in PF (positive)
9848 static int i40e_vsi_mem_alloc(struct i40e_pf
*pf
, enum i40e_vsi_type type
)
9851 struct i40e_vsi
*vsi
;
9855 /* Need to protect the allocation of the VSIs at the PF level */
9856 mutex_lock(&pf
->switch_mutex
);
9858 /* VSI list may be fragmented if VSI creation/destruction has
9859 * been happening. We can afford to do a quick scan to look
9860 * for any free VSIs in the list.
9862 * find next empty vsi slot, looping back around if necessary
9865 while (i
< pf
->num_alloc_vsi
&& pf
->vsi
[i
])
9867 if (i
>= pf
->num_alloc_vsi
) {
9869 while (i
< pf
->next_vsi
&& pf
->vsi
[i
])
9873 if (i
< pf
->num_alloc_vsi
&& !pf
->vsi
[i
]) {
9874 vsi_idx
= i
; /* Found one! */
9877 goto unlock_pf
; /* out of VSI slots! */
9881 vsi
= kzalloc(sizeof(*vsi
), GFP_KERNEL
);
9888 set_bit(__I40E_VSI_DOWN
, vsi
->state
);
9891 vsi
->int_rate_limit
= 0;
9892 vsi
->rss_table_size
= (vsi
->type
== I40E_VSI_MAIN
) ?
9893 pf
->rss_table_size
: 64;
9894 vsi
->netdev_registered
= false;
9895 vsi
->work_limit
= I40E_DEFAULT_IRQ_WORK
;
9896 hash_init(vsi
->mac_filter_hash
);
9897 vsi
->irqs_ready
= false;
9899 ret
= i40e_set_num_rings_in_vsi(vsi
);
9903 ret
= i40e_vsi_alloc_arrays(vsi
, true);
9907 /* Setup default MSIX irq handler for VSI */
9908 i40e_vsi_setup_irqhandler(vsi
, i40e_msix_clean_rings
);
9910 /* Initialize VSI lock */
9911 spin_lock_init(&vsi
->mac_filter_hash_lock
);
9912 pf
->vsi
[vsi_idx
] = vsi
;
9917 pf
->next_vsi
= i
- 1;
9920 mutex_unlock(&pf
->switch_mutex
);
9925 * i40e_vsi_free_arrays - Free queue and vector pointer arrays for the VSI
9926 * @type: VSI pointer
9927 * @free_qvectors: a bool to specify if q_vectors need to be freed.
9929 * On error: returns error code (negative)
9930 * On success: returns 0
9932 static void i40e_vsi_free_arrays(struct i40e_vsi
*vsi
, bool free_qvectors
)
9934 /* free the ring and vector containers */
9935 if (free_qvectors
) {
9936 kfree(vsi
->q_vectors
);
9937 vsi
->q_vectors
= NULL
;
9939 kfree(vsi
->tx_rings
);
9940 vsi
->tx_rings
= NULL
;
9941 vsi
->rx_rings
= NULL
;
9942 vsi
->xdp_rings
= NULL
;
9946 * i40e_clear_rss_config_user - clear the user configured RSS hash keys
9948 * @vsi: Pointer to VSI structure
9950 static void i40e_clear_rss_config_user(struct i40e_vsi
*vsi
)
9955 kfree(vsi
->rss_hkey_user
);
9956 vsi
->rss_hkey_user
= NULL
;
9958 kfree(vsi
->rss_lut_user
);
9959 vsi
->rss_lut_user
= NULL
;
9963 * i40e_vsi_clear - Deallocate the VSI provided
9964 * @vsi: the VSI being un-configured
9966 static int i40e_vsi_clear(struct i40e_vsi
*vsi
)
9977 mutex_lock(&pf
->switch_mutex
);
9978 if (!pf
->vsi
[vsi
->idx
]) {
9979 dev_err(&pf
->pdev
->dev
, "pf->vsi[%d] is NULL, just free vsi[%d](%p,type %d)\n",
9980 vsi
->idx
, vsi
->idx
, vsi
, vsi
->type
);
9984 if (pf
->vsi
[vsi
->idx
] != vsi
) {
9985 dev_err(&pf
->pdev
->dev
,
9986 "pf->vsi[%d](%p, type %d) != vsi[%d](%p,type %d): no free!\n",
9987 pf
->vsi
[vsi
->idx
]->idx
,
9989 pf
->vsi
[vsi
->idx
]->type
,
9990 vsi
->idx
, vsi
, vsi
->type
);
9994 /* updates the PF for this cleared vsi */
9995 i40e_put_lump(pf
->qp_pile
, vsi
->base_queue
, vsi
->idx
);
9996 i40e_put_lump(pf
->irq_pile
, vsi
->base_vector
, vsi
->idx
);
9998 i40e_vsi_free_arrays(vsi
, true);
9999 i40e_clear_rss_config_user(vsi
);
10001 pf
->vsi
[vsi
->idx
] = NULL
;
10002 if (vsi
->idx
< pf
->next_vsi
)
10003 pf
->next_vsi
= vsi
->idx
;
10006 mutex_unlock(&pf
->switch_mutex
);
10014 * i40e_vsi_clear_rings - Deallocates the Rx and Tx rings for the provided VSI
10015 * @vsi: the VSI being cleaned
10017 static void i40e_vsi_clear_rings(struct i40e_vsi
*vsi
)
10021 if (vsi
->tx_rings
&& vsi
->tx_rings
[0]) {
10022 for (i
= 0; i
< vsi
->alloc_queue_pairs
; i
++) {
10023 kfree_rcu(vsi
->tx_rings
[i
], rcu
);
10024 vsi
->tx_rings
[i
] = NULL
;
10025 vsi
->rx_rings
[i
] = NULL
;
10026 if (vsi
->xdp_rings
)
10027 vsi
->xdp_rings
[i
] = NULL
;
10033 * i40e_alloc_rings - Allocates the Rx and Tx rings for the provided VSI
10034 * @vsi: the VSI being configured
10036 static int i40e_alloc_rings(struct i40e_vsi
*vsi
)
10038 int i
, qpv
= i40e_enabled_xdp_vsi(vsi
) ? 3 : 2;
10039 struct i40e_pf
*pf
= vsi
->back
;
10040 struct i40e_ring
*ring
;
10042 /* Set basic values in the rings to be used later during open() */
10043 for (i
= 0; i
< vsi
->alloc_queue_pairs
; i
++) {
10044 /* allocate space for both Tx and Rx in one shot */
10045 ring
= kcalloc(qpv
, sizeof(struct i40e_ring
), GFP_KERNEL
);
10049 ring
->queue_index
= i
;
10050 ring
->reg_idx
= vsi
->base_queue
+ i
;
10051 ring
->ring_active
= false;
10053 ring
->netdev
= vsi
->netdev
;
10054 ring
->dev
= &pf
->pdev
->dev
;
10055 ring
->count
= vsi
->num_desc
;
10058 if (vsi
->back
->hw_features
& I40E_HW_WB_ON_ITR_CAPABLE
)
10059 ring
->flags
= I40E_TXR_FLAGS_WB_ON_ITR
;
10060 ring
->tx_itr_setting
= pf
->tx_itr_default
;
10061 vsi
->tx_rings
[i
] = ring
++;
10063 if (!i40e_enabled_xdp_vsi(vsi
))
10066 ring
->queue_index
= vsi
->alloc_queue_pairs
+ i
;
10067 ring
->reg_idx
= vsi
->base_queue
+ ring
->queue_index
;
10068 ring
->ring_active
= false;
10070 ring
->netdev
= NULL
;
10071 ring
->dev
= &pf
->pdev
->dev
;
10072 ring
->count
= vsi
->num_desc
;
10075 if (vsi
->back
->hw_features
& I40E_HW_WB_ON_ITR_CAPABLE
)
10076 ring
->flags
= I40E_TXR_FLAGS_WB_ON_ITR
;
10077 set_ring_xdp(ring
);
10078 ring
->tx_itr_setting
= pf
->tx_itr_default
;
10079 vsi
->xdp_rings
[i
] = ring
++;
10082 ring
->queue_index
= i
;
10083 ring
->reg_idx
= vsi
->base_queue
+ i
;
10084 ring
->ring_active
= false;
10086 ring
->netdev
= vsi
->netdev
;
10087 ring
->dev
= &pf
->pdev
->dev
;
10088 ring
->count
= vsi
->num_desc
;
10091 ring
->rx_itr_setting
= pf
->rx_itr_default
;
10092 vsi
->rx_rings
[i
] = ring
;
10098 i40e_vsi_clear_rings(vsi
);
10103 * i40e_reserve_msix_vectors - Reserve MSI-X vectors in the kernel
10104 * @pf: board private structure
10105 * @vectors: the number of MSI-X vectors to request
10107 * Returns the number of vectors reserved, or error
10109 static int i40e_reserve_msix_vectors(struct i40e_pf
*pf
, int vectors
)
10111 vectors
= pci_enable_msix_range(pf
->pdev
, pf
->msix_entries
,
10112 I40E_MIN_MSIX
, vectors
);
10114 dev_info(&pf
->pdev
->dev
,
10115 "MSI-X vector reservation failed: %d\n", vectors
);
10123 * i40e_init_msix - Setup the MSIX capability
10124 * @pf: board private structure
10126 * Work with the OS to set up the MSIX vectors needed.
10128 * Returns the number of vectors reserved or negative on failure
10130 static int i40e_init_msix(struct i40e_pf
*pf
)
10132 struct i40e_hw
*hw
= &pf
->hw
;
10133 int cpus
, extra_vectors
;
10137 int iwarp_requested
= 0;
10139 if (!(pf
->flags
& I40E_FLAG_MSIX_ENABLED
))
10142 /* The number of vectors we'll request will be comprised of:
10143 * - Add 1 for "other" cause for Admin Queue events, etc.
10144 * - The number of LAN queue pairs
10145 * - Queues being used for RSS.
10146 * We don't need as many as max_rss_size vectors.
10147 * use rss_size instead in the calculation since that
10148 * is governed by number of cpus in the system.
10149 * - assumes symmetric Tx/Rx pairing
10150 * - The number of VMDq pairs
10151 * - The CPU count within the NUMA node if iWARP is enabled
10152 * Once we count this up, try the request.
10154 * If we can't get what we want, we'll simplify to nearly nothing
10155 * and try again. If that still fails, we punt.
10157 vectors_left
= hw
->func_caps
.num_msix_vectors
;
10160 /* reserve one vector for miscellaneous handler */
10161 if (vectors_left
) {
10166 /* reserve some vectors for the main PF traffic queues. Initially we
10167 * only reserve at most 50% of the available vectors, in the case that
10168 * the number of online CPUs is large. This ensures that we can enable
10169 * extra features as well. Once we've enabled the other features, we
10170 * will use any remaining vectors to reach as close as we can to the
10171 * number of online CPUs.
10173 cpus
= num_online_cpus();
10174 pf
->num_lan_msix
= min_t(int, cpus
, vectors_left
/ 2);
10175 vectors_left
-= pf
->num_lan_msix
;
10177 /* reserve one vector for sideband flow director */
10178 if (pf
->flags
& I40E_FLAG_FD_SB_ENABLED
) {
10179 if (vectors_left
) {
10180 pf
->num_fdsb_msix
= 1;
10184 pf
->num_fdsb_msix
= 0;
10188 /* can we reserve enough for iWARP? */
10189 if (pf
->flags
& I40E_FLAG_IWARP_ENABLED
) {
10190 iwarp_requested
= pf
->num_iwarp_msix
;
10193 pf
->num_iwarp_msix
= 0;
10194 else if (vectors_left
< pf
->num_iwarp_msix
)
10195 pf
->num_iwarp_msix
= 1;
10196 v_budget
+= pf
->num_iwarp_msix
;
10197 vectors_left
-= pf
->num_iwarp_msix
;
10200 /* any vectors left over go for VMDq support */
10201 if (pf
->flags
& I40E_FLAG_VMDQ_ENABLED
) {
10202 int vmdq_vecs_wanted
= pf
->num_vmdq_vsis
* pf
->num_vmdq_qps
;
10203 int vmdq_vecs
= min_t(int, vectors_left
, vmdq_vecs_wanted
);
10205 if (!vectors_left
) {
10206 pf
->num_vmdq_msix
= 0;
10207 pf
->num_vmdq_qps
= 0;
10209 /* if we're short on vectors for what's desired, we limit
10210 * the queues per vmdq. If this is still more than are
10211 * available, the user will need to change the number of
10212 * queues/vectors used by the PF later with the ethtool
10215 if (vmdq_vecs
< vmdq_vecs_wanted
)
10216 pf
->num_vmdq_qps
= 1;
10217 pf
->num_vmdq_msix
= pf
->num_vmdq_qps
;
10219 v_budget
+= vmdq_vecs
;
10220 vectors_left
-= vmdq_vecs
;
10224 /* On systems with a large number of SMP cores, we previously limited
10225 * the number of vectors for num_lan_msix to be at most 50% of the
10226 * available vectors, to allow for other features. Now, we add back
10227 * the remaining vectors. However, we ensure that the total
10228 * num_lan_msix will not exceed num_online_cpus(). To do this, we
10229 * calculate the number of vectors we can add without going over the
10230 * cap of CPUs. For systems with a small number of CPUs this will be
10233 extra_vectors
= min_t(int, cpus
- pf
->num_lan_msix
, vectors_left
);
10234 pf
->num_lan_msix
+= extra_vectors
;
10235 vectors_left
-= extra_vectors
;
10237 WARN(vectors_left
< 0,
10238 "Calculation of remaining vectors underflowed. This is an accounting bug when determining total MSI-X vectors.\n");
10240 v_budget
+= pf
->num_lan_msix
;
10241 pf
->msix_entries
= kcalloc(v_budget
, sizeof(struct msix_entry
),
10243 if (!pf
->msix_entries
)
10246 for (i
= 0; i
< v_budget
; i
++)
10247 pf
->msix_entries
[i
].entry
= i
;
10248 v_actual
= i40e_reserve_msix_vectors(pf
, v_budget
);
10250 if (v_actual
< I40E_MIN_MSIX
) {
10251 pf
->flags
&= ~I40E_FLAG_MSIX_ENABLED
;
10252 kfree(pf
->msix_entries
);
10253 pf
->msix_entries
= NULL
;
10254 pci_disable_msix(pf
->pdev
);
10257 } else if (v_actual
== I40E_MIN_MSIX
) {
10258 /* Adjust for minimal MSIX use */
10259 pf
->num_vmdq_vsis
= 0;
10260 pf
->num_vmdq_qps
= 0;
10261 pf
->num_lan_qps
= 1;
10262 pf
->num_lan_msix
= 1;
10264 } else if (v_actual
!= v_budget
) {
10265 /* If we have limited resources, we will start with no vectors
10266 * for the special features and then allocate vectors to some
10267 * of these features based on the policy and at the end disable
10268 * the features that did not get any vectors.
10272 dev_info(&pf
->pdev
->dev
,
10273 "MSI-X vector limit reached with %d, wanted %d, attempting to redistribute vectors\n",
10274 v_actual
, v_budget
);
10275 /* reserve the misc vector */
10276 vec
= v_actual
- 1;
10278 /* Scale vector usage down */
10279 pf
->num_vmdq_msix
= 1; /* force VMDqs to only one vector */
10280 pf
->num_vmdq_vsis
= 1;
10281 pf
->num_vmdq_qps
= 1;
10283 /* partition out the remaining vectors */
10286 pf
->num_lan_msix
= 1;
10289 if (pf
->flags
& I40E_FLAG_IWARP_ENABLED
) {
10290 pf
->num_lan_msix
= 1;
10291 pf
->num_iwarp_msix
= 1;
10293 pf
->num_lan_msix
= 2;
10297 if (pf
->flags
& I40E_FLAG_IWARP_ENABLED
) {
10298 pf
->num_iwarp_msix
= min_t(int, (vec
/ 3),
10300 pf
->num_vmdq_vsis
= min_t(int, (vec
/ 3),
10301 I40E_DEFAULT_NUM_VMDQ_VSI
);
10303 pf
->num_vmdq_vsis
= min_t(int, (vec
/ 2),
10304 I40E_DEFAULT_NUM_VMDQ_VSI
);
10306 if (pf
->flags
& I40E_FLAG_FD_SB_ENABLED
) {
10307 pf
->num_fdsb_msix
= 1;
10310 pf
->num_lan_msix
= min_t(int,
10311 (vec
- (pf
->num_iwarp_msix
+ pf
->num_vmdq_vsis
)),
10313 pf
->num_lan_qps
= pf
->num_lan_msix
;
10318 if ((pf
->flags
& I40E_FLAG_FD_SB_ENABLED
) &&
10319 (pf
->num_fdsb_msix
== 0)) {
10320 dev_info(&pf
->pdev
->dev
, "Sideband Flowdir disabled, not enough MSI-X vectors\n");
10321 pf
->flags
&= ~I40E_FLAG_FD_SB_ENABLED
;
10322 pf
->flags
|= I40E_FLAG_FD_SB_INACTIVE
;
10324 if ((pf
->flags
& I40E_FLAG_VMDQ_ENABLED
) &&
10325 (pf
->num_vmdq_msix
== 0)) {
10326 dev_info(&pf
->pdev
->dev
, "VMDq disabled, not enough MSI-X vectors\n");
10327 pf
->flags
&= ~I40E_FLAG_VMDQ_ENABLED
;
10330 if ((pf
->flags
& I40E_FLAG_IWARP_ENABLED
) &&
10331 (pf
->num_iwarp_msix
== 0)) {
10332 dev_info(&pf
->pdev
->dev
, "IWARP disabled, not enough MSI-X vectors\n");
10333 pf
->flags
&= ~I40E_FLAG_IWARP_ENABLED
;
10335 i40e_debug(&pf
->hw
, I40E_DEBUG_INIT
,
10336 "MSI-X vector distribution: PF %d, VMDq %d, FDSB %d, iWARP %d\n",
10338 pf
->num_vmdq_msix
* pf
->num_vmdq_vsis
,
10340 pf
->num_iwarp_msix
);
10346 * i40e_vsi_alloc_q_vector - Allocate memory for a single interrupt vector
10347 * @vsi: the VSI being configured
10348 * @v_idx: index of the vector in the vsi struct
10349 * @cpu: cpu to be used on affinity_mask
10351 * We allocate one q_vector. If allocation fails we return -ENOMEM.
10353 static int i40e_vsi_alloc_q_vector(struct i40e_vsi
*vsi
, int v_idx
, int cpu
)
10355 struct i40e_q_vector
*q_vector
;
10357 /* allocate q_vector */
10358 q_vector
= kzalloc(sizeof(struct i40e_q_vector
), GFP_KERNEL
);
10362 q_vector
->vsi
= vsi
;
10363 q_vector
->v_idx
= v_idx
;
10364 cpumask_copy(&q_vector
->affinity_mask
, cpu_possible_mask
);
10367 netif_napi_add(vsi
->netdev
, &q_vector
->napi
,
10368 i40e_napi_poll
, NAPI_POLL_WEIGHT
);
10370 q_vector
->rx
.latency_range
= I40E_LOW_LATENCY
;
10371 q_vector
->tx
.latency_range
= I40E_LOW_LATENCY
;
10373 /* tie q_vector and vsi together */
10374 vsi
->q_vectors
[v_idx
] = q_vector
;
10380 * i40e_vsi_alloc_q_vectors - Allocate memory for interrupt vectors
10381 * @vsi: the VSI being configured
10383 * We allocate one q_vector per queue interrupt. If allocation fails we
10386 static int i40e_vsi_alloc_q_vectors(struct i40e_vsi
*vsi
)
10388 struct i40e_pf
*pf
= vsi
->back
;
10389 int err
, v_idx
, num_q_vectors
, current_cpu
;
10391 /* if not MSIX, give the one vector only to the LAN VSI */
10392 if (pf
->flags
& I40E_FLAG_MSIX_ENABLED
)
10393 num_q_vectors
= vsi
->num_q_vectors
;
10394 else if (vsi
== pf
->vsi
[pf
->lan_vsi
])
10399 current_cpu
= cpumask_first(cpu_online_mask
);
10401 for (v_idx
= 0; v_idx
< num_q_vectors
; v_idx
++) {
10402 err
= i40e_vsi_alloc_q_vector(vsi
, v_idx
, current_cpu
);
10405 current_cpu
= cpumask_next(current_cpu
, cpu_online_mask
);
10406 if (unlikely(current_cpu
>= nr_cpu_ids
))
10407 current_cpu
= cpumask_first(cpu_online_mask
);
10414 i40e_free_q_vector(vsi
, v_idx
);
10420 * i40e_init_interrupt_scheme - Determine proper interrupt scheme
10421 * @pf: board private structure to initialize
10423 static int i40e_init_interrupt_scheme(struct i40e_pf
*pf
)
10428 if (pf
->flags
& I40E_FLAG_MSIX_ENABLED
) {
10429 vectors
= i40e_init_msix(pf
);
10431 pf
->flags
&= ~(I40E_FLAG_MSIX_ENABLED
|
10432 I40E_FLAG_IWARP_ENABLED
|
10433 I40E_FLAG_RSS_ENABLED
|
10434 I40E_FLAG_DCB_CAPABLE
|
10435 I40E_FLAG_DCB_ENABLED
|
10436 I40E_FLAG_SRIOV_ENABLED
|
10437 I40E_FLAG_FD_SB_ENABLED
|
10438 I40E_FLAG_FD_ATR_ENABLED
|
10439 I40E_FLAG_VMDQ_ENABLED
);
10440 pf
->flags
|= I40E_FLAG_FD_SB_INACTIVE
;
10442 /* rework the queue expectations without MSIX */
10443 i40e_determine_queue_usage(pf
);
10447 if (!(pf
->flags
& I40E_FLAG_MSIX_ENABLED
) &&
10448 (pf
->flags
& I40E_FLAG_MSI_ENABLED
)) {
10449 dev_info(&pf
->pdev
->dev
, "MSI-X not available, trying MSI\n");
10450 vectors
= pci_enable_msi(pf
->pdev
);
10452 dev_info(&pf
->pdev
->dev
, "MSI init failed - %d\n",
10454 pf
->flags
&= ~I40E_FLAG_MSI_ENABLED
;
10456 vectors
= 1; /* one MSI or Legacy vector */
10459 if (!(pf
->flags
& (I40E_FLAG_MSIX_ENABLED
| I40E_FLAG_MSI_ENABLED
)))
10460 dev_info(&pf
->pdev
->dev
, "MSI-X and MSI not available, falling back to Legacy IRQ\n");
10462 /* set up vector assignment tracking */
10463 size
= sizeof(struct i40e_lump_tracking
) + (sizeof(u16
) * vectors
);
10464 pf
->irq_pile
= kzalloc(size
, GFP_KERNEL
);
10465 if (!pf
->irq_pile
) {
10466 dev_err(&pf
->pdev
->dev
, "error allocating irq_pile memory\n");
10469 pf
->irq_pile
->num_entries
= vectors
;
10470 pf
->irq_pile
->search_hint
= 0;
10472 /* track first vector for misc interrupts, ignore return */
10473 (void)i40e_get_lump(pf
, pf
->irq_pile
, 1, I40E_PILE_VALID_BIT
- 1);
10479 * i40e_restore_interrupt_scheme - Restore the interrupt scheme
10480 * @pf: private board data structure
10482 * Restore the interrupt scheme that was cleared when we suspended the
10483 * device. This should be called during resume to re-allocate the q_vectors
10484 * and reacquire IRQs.
10486 static int i40e_restore_interrupt_scheme(struct i40e_pf
*pf
)
10490 /* We cleared the MSI and MSI-X flags when disabling the old interrupt
10491 * scheme. We need to re-enabled them here in order to attempt to
10492 * re-acquire the MSI or MSI-X vectors
10494 pf
->flags
|= (I40E_FLAG_MSIX_ENABLED
| I40E_FLAG_MSI_ENABLED
);
10496 err
= i40e_init_interrupt_scheme(pf
);
10500 /* Now that we've re-acquired IRQs, we need to remap the vectors and
10501 * rings together again.
10503 for (i
= 0; i
< pf
->num_alloc_vsi
; i
++) {
10505 err
= i40e_vsi_alloc_q_vectors(pf
->vsi
[i
]);
10508 i40e_vsi_map_rings_to_vectors(pf
->vsi
[i
]);
10512 err
= i40e_setup_misc_vector(pf
);
10521 i40e_vsi_free_q_vectors(pf
->vsi
[i
]);
10528 * i40e_setup_misc_vector - Setup the misc vector to handle non queue events
10529 * @pf: board private structure
10531 * This sets up the handler for MSIX 0, which is used to manage the
10532 * non-queue interrupts, e.g. AdminQ and errors. This is not used
10533 * when in MSI or Legacy interrupt mode.
10535 static int i40e_setup_misc_vector(struct i40e_pf
*pf
)
10537 struct i40e_hw
*hw
= &pf
->hw
;
10540 /* Only request the IRQ once, the first time through. */
10541 if (!test_and_set_bit(__I40E_MISC_IRQ_REQUESTED
, pf
->state
)) {
10542 err
= request_irq(pf
->msix_entries
[0].vector
,
10543 i40e_intr
, 0, pf
->int_name
, pf
);
10545 clear_bit(__I40E_MISC_IRQ_REQUESTED
, pf
->state
);
10546 dev_info(&pf
->pdev
->dev
,
10547 "request_irq for %s failed: %d\n",
10548 pf
->int_name
, err
);
10553 i40e_enable_misc_int_causes(pf
);
10555 /* associate no queues to the misc vector */
10556 wr32(hw
, I40E_PFINT_LNKLST0
, I40E_QUEUE_END_OF_LIST
);
10557 wr32(hw
, I40E_PFINT_ITR0(I40E_RX_ITR
), I40E_ITR_8K
);
10561 i40e_irq_dynamic_enable_icr0(pf
);
10567 * i40e_get_rss_aq - Get RSS keys and lut by using AQ commands
10568 * @vsi: Pointer to vsi structure
10569 * @seed: Buffter to store the hash keys
10570 * @lut: Buffer to store the lookup table entries
10571 * @lut_size: Size of buffer to store the lookup table entries
10573 * Return 0 on success, negative on failure
10575 static int i40e_get_rss_aq(struct i40e_vsi
*vsi
, const u8
*seed
,
10576 u8
*lut
, u16 lut_size
)
10578 struct i40e_pf
*pf
= vsi
->back
;
10579 struct i40e_hw
*hw
= &pf
->hw
;
10583 ret
= i40e_aq_get_rss_key(hw
, vsi
->id
,
10584 (struct i40e_aqc_get_set_rss_key_data
*)seed
);
10586 dev_info(&pf
->pdev
->dev
,
10587 "Cannot get RSS key, err %s aq_err %s\n",
10588 i40e_stat_str(&pf
->hw
, ret
),
10589 i40e_aq_str(&pf
->hw
,
10590 pf
->hw
.aq
.asq_last_status
));
10596 bool pf_lut
= vsi
->type
== I40E_VSI_MAIN
? true : false;
10598 ret
= i40e_aq_get_rss_lut(hw
, vsi
->id
, pf_lut
, lut
, lut_size
);
10600 dev_info(&pf
->pdev
->dev
,
10601 "Cannot get RSS lut, err %s aq_err %s\n",
10602 i40e_stat_str(&pf
->hw
, ret
),
10603 i40e_aq_str(&pf
->hw
,
10604 pf
->hw
.aq
.asq_last_status
));
10613 * i40e_config_rss_reg - Configure RSS keys and lut by writing registers
10614 * @vsi: Pointer to vsi structure
10615 * @seed: RSS hash seed
10616 * @lut: Lookup table
10617 * @lut_size: Lookup table size
10619 * Returns 0 on success, negative on failure
10621 static int i40e_config_rss_reg(struct i40e_vsi
*vsi
, const u8
*seed
,
10622 const u8
*lut
, u16 lut_size
)
10624 struct i40e_pf
*pf
= vsi
->back
;
10625 struct i40e_hw
*hw
= &pf
->hw
;
10626 u16 vf_id
= vsi
->vf_id
;
10629 /* Fill out hash function seed */
10631 u32
*seed_dw
= (u32
*)seed
;
10633 if (vsi
->type
== I40E_VSI_MAIN
) {
10634 for (i
= 0; i
<= I40E_PFQF_HKEY_MAX_INDEX
; i
++)
10635 wr32(hw
, I40E_PFQF_HKEY(i
), seed_dw
[i
]);
10636 } else if (vsi
->type
== I40E_VSI_SRIOV
) {
10637 for (i
= 0; i
<= I40E_VFQF_HKEY1_MAX_INDEX
; i
++)
10638 wr32(hw
, I40E_VFQF_HKEY1(i
, vf_id
), seed_dw
[i
]);
10640 dev_err(&pf
->pdev
->dev
, "Cannot set RSS seed - invalid VSI type\n");
10645 u32
*lut_dw
= (u32
*)lut
;
10647 if (vsi
->type
== I40E_VSI_MAIN
) {
10648 if (lut_size
!= I40E_HLUT_ARRAY_SIZE
)
10650 for (i
= 0; i
<= I40E_PFQF_HLUT_MAX_INDEX
; i
++)
10651 wr32(hw
, I40E_PFQF_HLUT(i
), lut_dw
[i
]);
10652 } else if (vsi
->type
== I40E_VSI_SRIOV
) {
10653 if (lut_size
!= I40E_VF_HLUT_ARRAY_SIZE
)
10655 for (i
= 0; i
<= I40E_VFQF_HLUT_MAX_INDEX
; i
++)
10656 wr32(hw
, I40E_VFQF_HLUT1(i
, vf_id
), lut_dw
[i
]);
10658 dev_err(&pf
->pdev
->dev
, "Cannot set RSS LUT - invalid VSI type\n");
10667 * i40e_get_rss_reg - Get the RSS keys and lut by reading registers
10668 * @vsi: Pointer to VSI structure
10669 * @seed: Buffer to store the keys
10670 * @lut: Buffer to store the lookup table entries
10671 * @lut_size: Size of buffer to store the lookup table entries
10673 * Returns 0 on success, negative on failure
10675 static int i40e_get_rss_reg(struct i40e_vsi
*vsi
, u8
*seed
,
10676 u8
*lut
, u16 lut_size
)
10678 struct i40e_pf
*pf
= vsi
->back
;
10679 struct i40e_hw
*hw
= &pf
->hw
;
10683 u32
*seed_dw
= (u32
*)seed
;
10685 for (i
= 0; i
<= I40E_PFQF_HKEY_MAX_INDEX
; i
++)
10686 seed_dw
[i
] = i40e_read_rx_ctl(hw
, I40E_PFQF_HKEY(i
));
10689 u32
*lut_dw
= (u32
*)lut
;
10691 if (lut_size
!= I40E_HLUT_ARRAY_SIZE
)
10693 for (i
= 0; i
<= I40E_PFQF_HLUT_MAX_INDEX
; i
++)
10694 lut_dw
[i
] = rd32(hw
, I40E_PFQF_HLUT(i
));
10701 * i40e_config_rss - Configure RSS keys and lut
10702 * @vsi: Pointer to VSI structure
10703 * @seed: RSS hash seed
10704 * @lut: Lookup table
10705 * @lut_size: Lookup table size
10707 * Returns 0 on success, negative on failure
10709 int i40e_config_rss(struct i40e_vsi
*vsi
, u8
*seed
, u8
*lut
, u16 lut_size
)
10711 struct i40e_pf
*pf
= vsi
->back
;
10713 if (pf
->hw_features
& I40E_HW_RSS_AQ_CAPABLE
)
10714 return i40e_config_rss_aq(vsi
, seed
, lut
, lut_size
);
10716 return i40e_config_rss_reg(vsi
, seed
, lut
, lut_size
);
10720 * i40e_get_rss - Get RSS keys and lut
10721 * @vsi: Pointer to VSI structure
10722 * @seed: Buffer to store the keys
10723 * @lut: Buffer to store the lookup table entries
10724 * lut_size: Size of buffer to store the lookup table entries
10726 * Returns 0 on success, negative on failure
10728 int i40e_get_rss(struct i40e_vsi
*vsi
, u8
*seed
, u8
*lut
, u16 lut_size
)
10730 struct i40e_pf
*pf
= vsi
->back
;
10732 if (pf
->hw_features
& I40E_HW_RSS_AQ_CAPABLE
)
10733 return i40e_get_rss_aq(vsi
, seed
, lut
, lut_size
);
10735 return i40e_get_rss_reg(vsi
, seed
, lut
, lut_size
);
10739 * i40e_fill_rss_lut - Fill the RSS lookup table with default values
10740 * @pf: Pointer to board private structure
10741 * @lut: Lookup table
10742 * @rss_table_size: Lookup table size
10743 * @rss_size: Range of queue number for hashing
10745 void i40e_fill_rss_lut(struct i40e_pf
*pf
, u8
*lut
,
10746 u16 rss_table_size
, u16 rss_size
)
10750 for (i
= 0; i
< rss_table_size
; i
++)
10751 lut
[i
] = i
% rss_size
;
10755 * i40e_pf_config_rss - Prepare for RSS if used
10756 * @pf: board private structure
10758 static int i40e_pf_config_rss(struct i40e_pf
*pf
)
10760 struct i40e_vsi
*vsi
= pf
->vsi
[pf
->lan_vsi
];
10761 u8 seed
[I40E_HKEY_ARRAY_SIZE
];
10763 struct i40e_hw
*hw
= &pf
->hw
;
10768 /* By default we enable TCP/UDP with IPv4/IPv6 ptypes */
10769 hena
= (u64
)i40e_read_rx_ctl(hw
, I40E_PFQF_HENA(0)) |
10770 ((u64
)i40e_read_rx_ctl(hw
, I40E_PFQF_HENA(1)) << 32);
10771 hena
|= i40e_pf_get_default_rss_hena(pf
);
10773 i40e_write_rx_ctl(hw
, I40E_PFQF_HENA(0), (u32
)hena
);
10774 i40e_write_rx_ctl(hw
, I40E_PFQF_HENA(1), (u32
)(hena
>> 32));
10776 /* Determine the RSS table size based on the hardware capabilities */
10777 reg_val
= i40e_read_rx_ctl(hw
, I40E_PFQF_CTL_0
);
10778 reg_val
= (pf
->rss_table_size
== 512) ?
10779 (reg_val
| I40E_PFQF_CTL_0_HASHLUTSIZE_512
) :
10780 (reg_val
& ~I40E_PFQF_CTL_0_HASHLUTSIZE_512
);
10781 i40e_write_rx_ctl(hw
, I40E_PFQF_CTL_0
, reg_val
);
10783 /* Determine the RSS size of the VSI */
10784 if (!vsi
->rss_size
) {
10787 qcount
= vsi
->num_queue_pairs
/ vsi
->tc_config
.numtc
;
10788 vsi
->rss_size
= min_t(int, pf
->alloc_rss_size
, qcount
);
10790 if (!vsi
->rss_size
)
10793 lut
= kzalloc(vsi
->rss_table_size
, GFP_KERNEL
);
10797 /* Use user configured lut if there is one, otherwise use default */
10798 if (vsi
->rss_lut_user
)
10799 memcpy(lut
, vsi
->rss_lut_user
, vsi
->rss_table_size
);
10801 i40e_fill_rss_lut(pf
, lut
, vsi
->rss_table_size
, vsi
->rss_size
);
10803 /* Use user configured hash key if there is one, otherwise
10806 if (vsi
->rss_hkey_user
)
10807 memcpy(seed
, vsi
->rss_hkey_user
, I40E_HKEY_ARRAY_SIZE
);
10809 netdev_rss_key_fill((void *)seed
, I40E_HKEY_ARRAY_SIZE
);
10810 ret
= i40e_config_rss(vsi
, seed
, lut
, vsi
->rss_table_size
);
10817 * i40e_reconfig_rss_queues - change number of queues for rss and rebuild
10818 * @pf: board private structure
10819 * @queue_count: the requested queue count for rss.
10821 * returns 0 if rss is not enabled, if enabled returns the final rss queue
10822 * count which may be different from the requested queue count.
10823 * Note: expects to be called while under rtnl_lock()
10825 int i40e_reconfig_rss_queues(struct i40e_pf
*pf
, int queue_count
)
10827 struct i40e_vsi
*vsi
= pf
->vsi
[pf
->lan_vsi
];
10830 if (!(pf
->flags
& I40E_FLAG_RSS_ENABLED
))
10833 new_rss_size
= min_t(int, queue_count
, pf
->rss_size_max
);
10835 if (queue_count
!= vsi
->num_queue_pairs
) {
10838 vsi
->req_queue_pairs
= queue_count
;
10839 i40e_prep_for_reset(pf
, true);
10841 pf
->alloc_rss_size
= new_rss_size
;
10843 i40e_reset_and_rebuild(pf
, true, true);
10845 /* Discard the user configured hash keys and lut, if less
10846 * queues are enabled.
10848 if (queue_count
< vsi
->rss_size
) {
10849 i40e_clear_rss_config_user(vsi
);
10850 dev_dbg(&pf
->pdev
->dev
,
10851 "discard user configured hash keys and lut\n");
10854 /* Reset vsi->rss_size, as number of enabled queues changed */
10855 qcount
= vsi
->num_queue_pairs
/ vsi
->tc_config
.numtc
;
10856 vsi
->rss_size
= min_t(int, pf
->alloc_rss_size
, qcount
);
10858 i40e_pf_config_rss(pf
);
10860 dev_info(&pf
->pdev
->dev
, "User requested queue count/HW max RSS count: %d/%d\n",
10861 vsi
->req_queue_pairs
, pf
->rss_size_max
);
10862 return pf
->alloc_rss_size
;
10866 * i40e_get_partition_bw_setting - Retrieve BW settings for this PF partition
10867 * @pf: board private structure
10869 i40e_status
i40e_get_partition_bw_setting(struct i40e_pf
*pf
)
10871 i40e_status status
;
10872 bool min_valid
, max_valid
;
10873 u32 max_bw
, min_bw
;
10875 status
= i40e_read_bw_from_alt_ram(&pf
->hw
, &max_bw
, &min_bw
,
10876 &min_valid
, &max_valid
);
10880 pf
->min_bw
= min_bw
;
10882 pf
->max_bw
= max_bw
;
10889 * i40e_set_partition_bw_setting - Set BW settings for this PF partition
10890 * @pf: board private structure
10892 i40e_status
i40e_set_partition_bw_setting(struct i40e_pf
*pf
)
10894 struct i40e_aqc_configure_partition_bw_data bw_data
;
10895 i40e_status status
;
10897 /* Set the valid bit for this PF */
10898 bw_data
.pf_valid_bits
= cpu_to_le16(BIT(pf
->hw
.pf_id
));
10899 bw_data
.max_bw
[pf
->hw
.pf_id
] = pf
->max_bw
& I40E_ALT_BW_VALUE_MASK
;
10900 bw_data
.min_bw
[pf
->hw
.pf_id
] = pf
->min_bw
& I40E_ALT_BW_VALUE_MASK
;
10902 /* Set the new bandwidths */
10903 status
= i40e_aq_configure_partition_bw(&pf
->hw
, &bw_data
, NULL
);
10909 * i40e_commit_partition_bw_setting - Commit BW settings for this PF partition
10910 * @pf: board private structure
10912 i40e_status
i40e_commit_partition_bw_setting(struct i40e_pf
*pf
)
10914 /* Commit temporary BW setting to permanent NVM image */
10915 enum i40e_admin_queue_err last_aq_status
;
10919 if (pf
->hw
.partition_id
!= 1) {
10920 dev_info(&pf
->pdev
->dev
,
10921 "Commit BW only works on partition 1! This is partition %d",
10922 pf
->hw
.partition_id
);
10923 ret
= I40E_NOT_SUPPORTED
;
10924 goto bw_commit_out
;
10927 /* Acquire NVM for read access */
10928 ret
= i40e_acquire_nvm(&pf
->hw
, I40E_RESOURCE_READ
);
10929 last_aq_status
= pf
->hw
.aq
.asq_last_status
;
10931 dev_info(&pf
->pdev
->dev
,
10932 "Cannot acquire NVM for read access, err %s aq_err %s\n",
10933 i40e_stat_str(&pf
->hw
, ret
),
10934 i40e_aq_str(&pf
->hw
, last_aq_status
));
10935 goto bw_commit_out
;
10938 /* Read word 0x10 of NVM - SW compatibility word 1 */
10939 ret
= i40e_aq_read_nvm(&pf
->hw
,
10940 I40E_SR_NVM_CONTROL_WORD
,
10941 0x10, sizeof(nvm_word
), &nvm_word
,
10943 /* Save off last admin queue command status before releasing
10946 last_aq_status
= pf
->hw
.aq
.asq_last_status
;
10947 i40e_release_nvm(&pf
->hw
);
10949 dev_info(&pf
->pdev
->dev
, "NVM read error, err %s aq_err %s\n",
10950 i40e_stat_str(&pf
->hw
, ret
),
10951 i40e_aq_str(&pf
->hw
, last_aq_status
));
10952 goto bw_commit_out
;
10955 /* Wait a bit for NVM release to complete */
10958 /* Acquire NVM for write access */
10959 ret
= i40e_acquire_nvm(&pf
->hw
, I40E_RESOURCE_WRITE
);
10960 last_aq_status
= pf
->hw
.aq
.asq_last_status
;
10962 dev_info(&pf
->pdev
->dev
,
10963 "Cannot acquire NVM for write access, err %s aq_err %s\n",
10964 i40e_stat_str(&pf
->hw
, ret
),
10965 i40e_aq_str(&pf
->hw
, last_aq_status
));
10966 goto bw_commit_out
;
10968 /* Write it back out unchanged to initiate update NVM,
10969 * which will force a write of the shadow (alt) RAM to
10970 * the NVM - thus storing the bandwidth values permanently.
10972 ret
= i40e_aq_update_nvm(&pf
->hw
,
10973 I40E_SR_NVM_CONTROL_WORD
,
10974 0x10, sizeof(nvm_word
),
10975 &nvm_word
, true, NULL
);
10976 /* Save off last admin queue command status before releasing
10979 last_aq_status
= pf
->hw
.aq
.asq_last_status
;
10980 i40e_release_nvm(&pf
->hw
);
10982 dev_info(&pf
->pdev
->dev
,
10983 "BW settings NOT SAVED, err %s aq_err %s\n",
10984 i40e_stat_str(&pf
->hw
, ret
),
10985 i40e_aq_str(&pf
->hw
, last_aq_status
));
10992 * i40e_sw_init - Initialize general software structures (struct i40e_pf)
10993 * @pf: board private structure to initialize
10995 * i40e_sw_init initializes the Adapter private data structure.
10996 * Fields are initialized based on PCI device information and
10997 * OS network device settings (MTU size).
10999 static int i40e_sw_init(struct i40e_pf
*pf
)
11004 /* Set default capability flags */
11005 pf
->flags
= I40E_FLAG_RX_CSUM_ENABLED
|
11006 I40E_FLAG_MSI_ENABLED
|
11007 I40E_FLAG_MSIX_ENABLED
;
11009 /* Set default ITR */
11010 pf
->rx_itr_default
= I40E_ITR_RX_DEF
;
11011 pf
->tx_itr_default
= I40E_ITR_TX_DEF
;
11013 /* Depending on PF configurations, it is possible that the RSS
11014 * maximum might end up larger than the available queues
11016 pf
->rss_size_max
= BIT(pf
->hw
.func_caps
.rss_table_entry_width
);
11017 pf
->alloc_rss_size
= 1;
11018 pf
->rss_table_size
= pf
->hw
.func_caps
.rss_table_size
;
11019 pf
->rss_size_max
= min_t(int, pf
->rss_size_max
,
11020 pf
->hw
.func_caps
.num_tx_qp
);
11021 if (pf
->hw
.func_caps
.rss
) {
11022 pf
->flags
|= I40E_FLAG_RSS_ENABLED
;
11023 pf
->alloc_rss_size
= min_t(int, pf
->rss_size_max
,
11024 num_online_cpus());
11027 /* MFP mode enabled */
11028 if (pf
->hw
.func_caps
.npar_enable
|| pf
->hw
.func_caps
.flex10_enable
) {
11029 pf
->flags
|= I40E_FLAG_MFP_ENABLED
;
11030 dev_info(&pf
->pdev
->dev
, "MFP mode Enabled\n");
11031 if (i40e_get_partition_bw_setting(pf
)) {
11032 dev_warn(&pf
->pdev
->dev
,
11033 "Could not get partition bw settings\n");
11035 dev_info(&pf
->pdev
->dev
,
11036 "Partition BW Min = %8.8x, Max = %8.8x\n",
11037 pf
->min_bw
, pf
->max_bw
);
11039 /* nudge the Tx scheduler */
11040 i40e_set_partition_bw_setting(pf
);
11044 if ((pf
->hw
.func_caps
.fd_filters_guaranteed
> 0) ||
11045 (pf
->hw
.func_caps
.fd_filters_best_effort
> 0)) {
11046 pf
->flags
|= I40E_FLAG_FD_ATR_ENABLED
;
11047 pf
->atr_sample_rate
= I40E_DEFAULT_ATR_SAMPLE_RATE
;
11048 if (pf
->flags
& I40E_FLAG_MFP_ENABLED
&&
11049 pf
->hw
.num_partitions
> 1)
11050 dev_info(&pf
->pdev
->dev
,
11051 "Flow Director Sideband mode Disabled in MFP mode\n");
11053 pf
->flags
|= I40E_FLAG_FD_SB_ENABLED
;
11054 pf
->fdir_pf_filter_count
=
11055 pf
->hw
.func_caps
.fd_filters_guaranteed
;
11056 pf
->hw
.fdir_shared_filter_count
=
11057 pf
->hw
.func_caps
.fd_filters_best_effort
;
11060 if (pf
->hw
.mac
.type
== I40E_MAC_X722
) {
11061 pf
->hw_features
|= (I40E_HW_RSS_AQ_CAPABLE
|
11062 I40E_HW_128_QP_RSS_CAPABLE
|
11063 I40E_HW_ATR_EVICT_CAPABLE
|
11064 I40E_HW_WB_ON_ITR_CAPABLE
|
11065 I40E_HW_MULTIPLE_TCP_UDP_RSS_PCTYPE
|
11066 I40E_HW_NO_PCI_LINK_CHECK
|
11067 I40E_HW_USE_SET_LLDP_MIB
|
11068 I40E_HW_GENEVE_OFFLOAD_CAPABLE
|
11069 I40E_HW_PTP_L4_CAPABLE
|
11070 I40E_HW_WOL_MC_MAGIC_PKT_WAKE
|
11071 I40E_HW_OUTER_UDP_CSUM_CAPABLE
);
11073 #define I40E_FDEVICT_PCTYPE_DEFAULT 0xc03
11074 if (rd32(&pf
->hw
, I40E_GLQF_FDEVICTENA(1)) !=
11075 I40E_FDEVICT_PCTYPE_DEFAULT
) {
11076 dev_warn(&pf
->pdev
->dev
,
11077 "FD EVICT PCTYPES are not right, disable FD HW EVICT\n");
11078 pf
->hw_features
&= ~I40E_HW_ATR_EVICT_CAPABLE
;
11080 } else if ((pf
->hw
.aq
.api_maj_ver
> 1) ||
11081 ((pf
->hw
.aq
.api_maj_ver
== 1) &&
11082 (pf
->hw
.aq
.api_min_ver
> 4))) {
11083 /* Supported in FW API version higher than 1.4 */
11084 pf
->hw_features
|= I40E_HW_GENEVE_OFFLOAD_CAPABLE
;
11087 /* Enable HW ATR eviction if possible */
11088 if (pf
->hw_features
& I40E_HW_ATR_EVICT_CAPABLE
)
11089 pf
->flags
|= I40E_FLAG_HW_ATR_EVICT_ENABLED
;
11091 if ((pf
->hw
.mac
.type
== I40E_MAC_XL710
) &&
11092 (((pf
->hw
.aq
.fw_maj_ver
== 4) && (pf
->hw
.aq
.fw_min_ver
< 33)) ||
11093 (pf
->hw
.aq
.fw_maj_ver
< 4))) {
11094 pf
->hw_features
|= I40E_HW_RESTART_AUTONEG
;
11095 /* No DCB support for FW < v4.33 */
11096 pf
->hw_features
|= I40E_HW_NO_DCB_SUPPORT
;
11099 /* Disable FW LLDP if FW < v4.3 */
11100 if ((pf
->hw
.mac
.type
== I40E_MAC_XL710
) &&
11101 (((pf
->hw
.aq
.fw_maj_ver
== 4) && (pf
->hw
.aq
.fw_min_ver
< 3)) ||
11102 (pf
->hw
.aq
.fw_maj_ver
< 4)))
11103 pf
->hw_features
|= I40E_HW_STOP_FW_LLDP
;
11105 /* Use the FW Set LLDP MIB API if FW > v4.40 */
11106 if ((pf
->hw
.mac
.type
== I40E_MAC_XL710
) &&
11107 (((pf
->hw
.aq
.fw_maj_ver
== 4) && (pf
->hw
.aq
.fw_min_ver
>= 40)) ||
11108 (pf
->hw
.aq
.fw_maj_ver
>= 5)))
11109 pf
->hw_features
|= I40E_HW_USE_SET_LLDP_MIB
;
11111 /* Enable PTP L4 if FW > v6.0 */
11112 if (pf
->hw
.mac
.type
== I40E_MAC_XL710
&&
11113 pf
->hw
.aq
.fw_maj_ver
>= 6)
11114 pf
->hw_features
|= I40E_HW_PTP_L4_CAPABLE
;
11116 if (pf
->hw
.func_caps
.vmdq
) {
11117 pf
->num_vmdq_vsis
= I40E_DEFAULT_NUM_VMDQ_VSI
;
11118 pf
->flags
|= I40E_FLAG_VMDQ_ENABLED
;
11119 pf
->num_vmdq_qps
= i40e_default_queues_per_vmdq(pf
);
11122 if (pf
->hw
.func_caps
.iwarp
) {
11123 pf
->flags
|= I40E_FLAG_IWARP_ENABLED
;
11124 /* IWARP needs one extra vector for CQP just like MISC.*/
11125 pf
->num_iwarp_msix
= (int)num_online_cpus() + 1;
11128 #ifdef CONFIG_PCI_IOV
11129 if (pf
->hw
.func_caps
.num_vfs
&& pf
->hw
.partition_id
== 1) {
11130 pf
->num_vf_qps
= I40E_DEFAULT_QUEUES_PER_VF
;
11131 pf
->flags
|= I40E_FLAG_SRIOV_ENABLED
;
11132 pf
->num_req_vfs
= min_t(int,
11133 pf
->hw
.func_caps
.num_vfs
,
11134 I40E_MAX_VF_COUNT
);
11136 #endif /* CONFIG_PCI_IOV */
11137 pf
->eeprom_version
= 0xDEAD;
11138 pf
->lan_veb
= I40E_NO_VEB
;
11139 pf
->lan_vsi
= I40E_NO_VSI
;
11141 /* By default FW has this off for performance reasons */
11142 pf
->flags
&= ~I40E_FLAG_VEB_STATS_ENABLED
;
11144 /* set up queue assignment tracking */
11145 size
= sizeof(struct i40e_lump_tracking
)
11146 + (sizeof(u16
) * pf
->hw
.func_caps
.num_tx_qp
);
11147 pf
->qp_pile
= kzalloc(size
, GFP_KERNEL
);
11148 if (!pf
->qp_pile
) {
11152 pf
->qp_pile
->num_entries
= pf
->hw
.func_caps
.num_tx_qp
;
11153 pf
->qp_pile
->search_hint
= 0;
11155 pf
->tx_timeout_recovery_level
= 1;
11157 mutex_init(&pf
->switch_mutex
);
11164 * i40e_set_ntuple - set the ntuple feature flag and take action
11165 * @pf: board private structure to initialize
11166 * @features: the feature set that the stack is suggesting
11168 * returns a bool to indicate if reset needs to happen
11170 bool i40e_set_ntuple(struct i40e_pf
*pf
, netdev_features_t features
)
11172 bool need_reset
= false;
11174 /* Check if Flow Director n-tuple support was enabled or disabled. If
11175 * the state changed, we need to reset.
11177 if (features
& NETIF_F_NTUPLE
) {
11178 /* Enable filters and mark for reset */
11179 if (!(pf
->flags
& I40E_FLAG_FD_SB_ENABLED
))
11181 /* enable FD_SB only if there is MSI-X vector and no cloud
11184 if (pf
->num_fdsb_msix
> 0 && !pf
->num_cloud_filters
) {
11185 pf
->flags
|= I40E_FLAG_FD_SB_ENABLED
;
11186 pf
->flags
&= ~I40E_FLAG_FD_SB_INACTIVE
;
11189 /* turn off filters, mark for reset and clear SW filter list */
11190 if (pf
->flags
& I40E_FLAG_FD_SB_ENABLED
) {
11192 i40e_fdir_filter_exit(pf
);
11194 pf
->flags
&= ~(I40E_FLAG_FD_SB_ENABLED
|
11195 I40E_FLAG_FD_SB_AUTO_DISABLED
);
11196 pf
->flags
|= I40E_FLAG_FD_SB_INACTIVE
;
11198 /* reset fd counters */
11199 pf
->fd_add_err
= 0;
11200 pf
->fd_atr_cnt
= 0;
11201 /* if ATR was auto disabled it can be re-enabled. */
11202 if (pf
->flags
& I40E_FLAG_FD_ATR_AUTO_DISABLED
) {
11203 pf
->flags
&= ~I40E_FLAG_FD_ATR_AUTO_DISABLED
;
11204 if ((pf
->flags
& I40E_FLAG_FD_ATR_ENABLED
) &&
11205 (I40E_DEBUG_FD
& pf
->hw
.debug_mask
))
11206 dev_info(&pf
->pdev
->dev
, "ATR re-enabled.\n");
11213 * i40e_clear_rss_lut - clear the rx hash lookup table
11214 * @vsi: the VSI being configured
11216 static void i40e_clear_rss_lut(struct i40e_vsi
*vsi
)
11218 struct i40e_pf
*pf
= vsi
->back
;
11219 struct i40e_hw
*hw
= &pf
->hw
;
11220 u16 vf_id
= vsi
->vf_id
;
11223 if (vsi
->type
== I40E_VSI_MAIN
) {
11224 for (i
= 0; i
<= I40E_PFQF_HLUT_MAX_INDEX
; i
++)
11225 wr32(hw
, I40E_PFQF_HLUT(i
), 0);
11226 } else if (vsi
->type
== I40E_VSI_SRIOV
) {
11227 for (i
= 0; i
<= I40E_VFQF_HLUT_MAX_INDEX
; i
++)
11228 i40e_write_rx_ctl(hw
, I40E_VFQF_HLUT1(i
, vf_id
), 0);
11230 dev_err(&pf
->pdev
->dev
, "Cannot set RSS LUT - invalid VSI type\n");
11235 * i40e_set_features - set the netdev feature flags
11236 * @netdev: ptr to the netdev being adjusted
11237 * @features: the feature set that the stack is suggesting
11238 * Note: expects to be called while under rtnl_lock()
11240 static int i40e_set_features(struct net_device
*netdev
,
11241 netdev_features_t features
)
11243 struct i40e_netdev_priv
*np
= netdev_priv(netdev
);
11244 struct i40e_vsi
*vsi
= np
->vsi
;
11245 struct i40e_pf
*pf
= vsi
->back
;
11248 if (features
& NETIF_F_RXHASH
&& !(netdev
->features
& NETIF_F_RXHASH
))
11249 i40e_pf_config_rss(pf
);
11250 else if (!(features
& NETIF_F_RXHASH
) &&
11251 netdev
->features
& NETIF_F_RXHASH
)
11252 i40e_clear_rss_lut(vsi
);
11254 if (features
& NETIF_F_HW_VLAN_CTAG_RX
)
11255 i40e_vlan_stripping_enable(vsi
);
11257 i40e_vlan_stripping_disable(vsi
);
11259 if (!(features
& NETIF_F_HW_TC
) && pf
->num_cloud_filters
) {
11260 dev_err(&pf
->pdev
->dev
,
11261 "Offloaded tc filters active, can't turn hw_tc_offload off");
11265 need_reset
= i40e_set_ntuple(pf
, features
);
11268 i40e_do_reset(pf
, I40E_PF_RESET_FLAG
, true);
11274 * i40e_get_udp_port_idx - Lookup a possibly offloaded for Rx UDP port
11275 * @pf: board private structure
11276 * @port: The UDP port to look up
11278 * Returns the index number or I40E_MAX_PF_UDP_OFFLOAD_PORTS if port not found
11280 static u8
i40e_get_udp_port_idx(struct i40e_pf
*pf
, u16 port
)
11284 for (i
= 0; i
< I40E_MAX_PF_UDP_OFFLOAD_PORTS
; i
++) {
11285 if (pf
->udp_ports
[i
].port
== port
)
11293 * i40e_udp_tunnel_add - Get notifications about UDP tunnel ports that come up
11294 * @netdev: This physical port's netdev
11295 * @ti: Tunnel endpoint information
11297 static void i40e_udp_tunnel_add(struct net_device
*netdev
,
11298 struct udp_tunnel_info
*ti
)
11300 struct i40e_netdev_priv
*np
= netdev_priv(netdev
);
11301 struct i40e_vsi
*vsi
= np
->vsi
;
11302 struct i40e_pf
*pf
= vsi
->back
;
11303 u16 port
= ntohs(ti
->port
);
11307 idx
= i40e_get_udp_port_idx(pf
, port
);
11309 /* Check if port already exists */
11310 if (idx
< I40E_MAX_PF_UDP_OFFLOAD_PORTS
) {
11311 netdev_info(netdev
, "port %d already offloaded\n", port
);
11315 /* Now check if there is space to add the new port */
11316 next_idx
= i40e_get_udp_port_idx(pf
, 0);
11318 if (next_idx
== I40E_MAX_PF_UDP_OFFLOAD_PORTS
) {
11319 netdev_info(netdev
, "maximum number of offloaded UDP ports reached, not adding port %d\n",
11324 switch (ti
->type
) {
11325 case UDP_TUNNEL_TYPE_VXLAN
:
11326 pf
->udp_ports
[next_idx
].type
= I40E_AQC_TUNNEL_TYPE_VXLAN
;
11328 case UDP_TUNNEL_TYPE_GENEVE
:
11329 if (!(pf
->hw_features
& I40E_HW_GENEVE_OFFLOAD_CAPABLE
))
11331 pf
->udp_ports
[next_idx
].type
= I40E_AQC_TUNNEL_TYPE_NGE
;
11337 /* New port: add it and mark its index in the bitmap */
11338 pf
->udp_ports
[next_idx
].port
= port
;
11339 pf
->pending_udp_bitmap
|= BIT_ULL(next_idx
);
11340 pf
->flags
|= I40E_FLAG_UDP_FILTER_SYNC
;
11344 * i40e_udp_tunnel_del - Get notifications about UDP tunnel ports that go away
11345 * @netdev: This physical port's netdev
11346 * @ti: Tunnel endpoint information
11348 static void i40e_udp_tunnel_del(struct net_device
*netdev
,
11349 struct udp_tunnel_info
*ti
)
11351 struct i40e_netdev_priv
*np
= netdev_priv(netdev
);
11352 struct i40e_vsi
*vsi
= np
->vsi
;
11353 struct i40e_pf
*pf
= vsi
->back
;
11354 u16 port
= ntohs(ti
->port
);
11357 idx
= i40e_get_udp_port_idx(pf
, port
);
11359 /* Check if port already exists */
11360 if (idx
>= I40E_MAX_PF_UDP_OFFLOAD_PORTS
)
11363 switch (ti
->type
) {
11364 case UDP_TUNNEL_TYPE_VXLAN
:
11365 if (pf
->udp_ports
[idx
].type
!= I40E_AQC_TUNNEL_TYPE_VXLAN
)
11368 case UDP_TUNNEL_TYPE_GENEVE
:
11369 if (pf
->udp_ports
[idx
].type
!= I40E_AQC_TUNNEL_TYPE_NGE
)
11376 /* if port exists, set it to 0 (mark for deletion)
11377 * and make it pending
11379 pf
->udp_ports
[idx
].port
= 0;
11380 pf
->pending_udp_bitmap
|= BIT_ULL(idx
);
11381 pf
->flags
|= I40E_FLAG_UDP_FILTER_SYNC
;
11385 netdev_warn(netdev
, "UDP port %d was not found, not deleting\n",
11389 static int i40e_get_phys_port_id(struct net_device
*netdev
,
11390 struct netdev_phys_item_id
*ppid
)
11392 struct i40e_netdev_priv
*np
= netdev_priv(netdev
);
11393 struct i40e_pf
*pf
= np
->vsi
->back
;
11394 struct i40e_hw
*hw
= &pf
->hw
;
11396 if (!(pf
->hw_features
& I40E_HW_PORT_ID_VALID
))
11397 return -EOPNOTSUPP
;
11399 ppid
->id_len
= min_t(int, sizeof(hw
->mac
.port_addr
), sizeof(ppid
->id
));
11400 memcpy(ppid
->id
, hw
->mac
.port_addr
, ppid
->id_len
);
11406 * i40e_ndo_fdb_add - add an entry to the hardware database
11407 * @ndm: the input from the stack
11408 * @tb: pointer to array of nladdr (unused)
11409 * @dev: the net device pointer
11410 * @addr: the MAC address entry being added
11411 * @flags: instructions from stack about fdb operation
11413 static int i40e_ndo_fdb_add(struct ndmsg
*ndm
, struct nlattr
*tb
[],
11414 struct net_device
*dev
,
11415 const unsigned char *addr
, u16 vid
,
11418 struct i40e_netdev_priv
*np
= netdev_priv(dev
);
11419 struct i40e_pf
*pf
= np
->vsi
->back
;
11422 if (!(pf
->flags
& I40E_FLAG_SRIOV_ENABLED
))
11423 return -EOPNOTSUPP
;
11426 pr_info("%s: vlans aren't supported yet for dev_uc|mc_add()\n", dev
->name
);
11430 /* Hardware does not support aging addresses so if a
11431 * ndm_state is given only allow permanent addresses
11433 if (ndm
->ndm_state
&& !(ndm
->ndm_state
& NUD_PERMANENT
)) {
11434 netdev_info(dev
, "FDB only supports static addresses\n");
11438 if (is_unicast_ether_addr(addr
) || is_link_local_ether_addr(addr
))
11439 err
= dev_uc_add_excl(dev
, addr
);
11440 else if (is_multicast_ether_addr(addr
))
11441 err
= dev_mc_add_excl(dev
, addr
);
11445 /* Only return duplicate errors if NLM_F_EXCL is set */
11446 if (err
== -EEXIST
&& !(flags
& NLM_F_EXCL
))
11453 * i40e_ndo_bridge_setlink - Set the hardware bridge mode
11454 * @dev: the netdev being configured
11455 * @nlh: RTNL message
11457 * Inserts a new hardware bridge if not already created and
11458 * enables the bridging mode requested (VEB or VEPA). If the
11459 * hardware bridge has already been inserted and the request
11460 * is to change the mode then that requires a PF reset to
11461 * allow rebuild of the components with required hardware
11462 * bridge mode enabled.
11464 * Note: expects to be called while under rtnl_lock()
11466 static int i40e_ndo_bridge_setlink(struct net_device
*dev
,
11467 struct nlmsghdr
*nlh
,
11470 struct i40e_netdev_priv
*np
= netdev_priv(dev
);
11471 struct i40e_vsi
*vsi
= np
->vsi
;
11472 struct i40e_pf
*pf
= vsi
->back
;
11473 struct i40e_veb
*veb
= NULL
;
11474 struct nlattr
*attr
, *br_spec
;
11477 /* Only for PF VSI for now */
11478 if (vsi
->seid
!= pf
->vsi
[pf
->lan_vsi
]->seid
)
11479 return -EOPNOTSUPP
;
11481 /* Find the HW bridge for PF VSI */
11482 for (i
= 0; i
< I40E_MAX_VEB
&& !veb
; i
++) {
11483 if (pf
->veb
[i
] && pf
->veb
[i
]->seid
== vsi
->uplink_seid
)
11487 br_spec
= nlmsg_find_attr(nlh
, sizeof(struct ifinfomsg
), IFLA_AF_SPEC
);
11489 nla_for_each_nested(attr
, br_spec
, rem
) {
11492 if (nla_type(attr
) != IFLA_BRIDGE_MODE
)
11495 mode
= nla_get_u16(attr
);
11496 if ((mode
!= BRIDGE_MODE_VEPA
) &&
11497 (mode
!= BRIDGE_MODE_VEB
))
11500 /* Insert a new HW bridge */
11502 veb
= i40e_veb_setup(pf
, 0, vsi
->uplink_seid
, vsi
->seid
,
11503 vsi
->tc_config
.enabled_tc
);
11505 veb
->bridge_mode
= mode
;
11506 i40e_config_bridge_mode(veb
);
11508 /* No Bridge HW offload available */
11512 } else if (mode
!= veb
->bridge_mode
) {
11513 /* Existing HW bridge but different mode needs reset */
11514 veb
->bridge_mode
= mode
;
11515 /* TODO: If no VFs or VMDq VSIs, disallow VEB mode */
11516 if (mode
== BRIDGE_MODE_VEB
)
11517 pf
->flags
|= I40E_FLAG_VEB_MODE_ENABLED
;
11519 pf
->flags
&= ~I40E_FLAG_VEB_MODE_ENABLED
;
11520 i40e_do_reset(pf
, I40E_PF_RESET_FLAG
, true);
11529 * i40e_ndo_bridge_getlink - Get the hardware bridge mode
11532 * @seq: RTNL message seq #
11533 * @dev: the netdev being configured
11534 * @filter_mask: unused
11535 * @nlflags: netlink flags passed in
11537 * Return the mode in which the hardware bridge is operating in
11540 static int i40e_ndo_bridge_getlink(struct sk_buff
*skb
, u32 pid
, u32 seq
,
11541 struct net_device
*dev
,
11542 u32 __always_unused filter_mask
,
11545 struct i40e_netdev_priv
*np
= netdev_priv(dev
);
11546 struct i40e_vsi
*vsi
= np
->vsi
;
11547 struct i40e_pf
*pf
= vsi
->back
;
11548 struct i40e_veb
*veb
= NULL
;
11551 /* Only for PF VSI for now */
11552 if (vsi
->seid
!= pf
->vsi
[pf
->lan_vsi
]->seid
)
11553 return -EOPNOTSUPP
;
11555 /* Find the HW bridge for the PF VSI */
11556 for (i
= 0; i
< I40E_MAX_VEB
&& !veb
; i
++) {
11557 if (pf
->veb
[i
] && pf
->veb
[i
]->seid
== vsi
->uplink_seid
)
11564 return ndo_dflt_bridge_getlink(skb
, pid
, seq
, dev
, veb
->bridge_mode
,
11565 0, 0, nlflags
, filter_mask
, NULL
);
11569 * i40e_features_check - Validate encapsulated packet conforms to limits
11571 * @dev: This physical port's netdev
11572 * @features: Offload features that the stack believes apply
11574 static netdev_features_t
i40e_features_check(struct sk_buff
*skb
,
11575 struct net_device
*dev
,
11576 netdev_features_t features
)
11580 /* No point in doing any of this if neither checksum nor GSO are
11581 * being requested for this frame. We can rule out both by just
11582 * checking for CHECKSUM_PARTIAL
11584 if (skb
->ip_summed
!= CHECKSUM_PARTIAL
)
11587 /* We cannot support GSO if the MSS is going to be less than
11588 * 64 bytes. If it is then we need to drop support for GSO.
11590 if (skb_is_gso(skb
) && (skb_shinfo(skb
)->gso_size
< 64))
11591 features
&= ~NETIF_F_GSO_MASK
;
11593 /* MACLEN can support at most 63 words */
11594 len
= skb_network_header(skb
) - skb
->data
;
11595 if (len
& ~(63 * 2))
11598 /* IPLEN and EIPLEN can support at most 127 dwords */
11599 len
= skb_transport_header(skb
) - skb_network_header(skb
);
11600 if (len
& ~(127 * 4))
11603 if (skb
->encapsulation
) {
11604 /* L4TUNLEN can support 127 words */
11605 len
= skb_inner_network_header(skb
) - skb_transport_header(skb
);
11606 if (len
& ~(127 * 2))
11609 /* IPLEN can support at most 127 dwords */
11610 len
= skb_inner_transport_header(skb
) -
11611 skb_inner_network_header(skb
);
11612 if (len
& ~(127 * 4))
11616 /* No need to validate L4LEN as TCP is the only protocol with a
11617 * a flexible value and we support all possible values supported
11618 * by TCP, which is at most 15 dwords
11623 return features
& ~(NETIF_F_CSUM_MASK
| NETIF_F_GSO_MASK
);
11627 * i40e_xdp_setup - add/remove an XDP program
11628 * @vsi: VSI to changed
11629 * @prog: XDP program
11631 static int i40e_xdp_setup(struct i40e_vsi
*vsi
,
11632 struct bpf_prog
*prog
)
11634 int frame_size
= vsi
->netdev
->mtu
+ ETH_HLEN
+ ETH_FCS_LEN
+ VLAN_HLEN
;
11635 struct i40e_pf
*pf
= vsi
->back
;
11636 struct bpf_prog
*old_prog
;
11640 /* Don't allow frames that span over multiple buffers */
11641 if (frame_size
> vsi
->rx_buf_len
)
11644 if (!i40e_enabled_xdp_vsi(vsi
) && !prog
)
11647 /* When turning XDP on->off/off->on we reset and rebuild the rings. */
11648 need_reset
= (i40e_enabled_xdp_vsi(vsi
) != !!prog
);
11651 i40e_prep_for_reset(pf
, true);
11653 old_prog
= xchg(&vsi
->xdp_prog
, prog
);
11656 i40e_reset_and_rebuild(pf
, true, true);
11658 for (i
= 0; i
< vsi
->num_queue_pairs
; i
++)
11659 WRITE_ONCE(vsi
->rx_rings
[i
]->xdp_prog
, vsi
->xdp_prog
);
11662 bpf_prog_put(old_prog
);
11668 * i40e_xdp - implements ndo_bpf for i40e
11670 * @xdp: XDP command
11672 static int i40e_xdp(struct net_device
*dev
,
11673 struct netdev_bpf
*xdp
)
11675 struct i40e_netdev_priv
*np
= netdev_priv(dev
);
11676 struct i40e_vsi
*vsi
= np
->vsi
;
11678 if (vsi
->type
!= I40E_VSI_MAIN
)
11681 switch (xdp
->command
) {
11682 case XDP_SETUP_PROG
:
11683 return i40e_xdp_setup(vsi
, xdp
->prog
);
11684 case XDP_QUERY_PROG
:
11685 xdp
->prog_attached
= i40e_enabled_xdp_vsi(vsi
);
11686 xdp
->prog_id
= vsi
->xdp_prog
? vsi
->xdp_prog
->aux
->id
: 0;
11693 static const struct net_device_ops i40e_netdev_ops
= {
11694 .ndo_open
= i40e_open
,
11695 .ndo_stop
= i40e_close
,
11696 .ndo_start_xmit
= i40e_lan_xmit_frame
,
11697 .ndo_get_stats64
= i40e_get_netdev_stats_struct
,
11698 .ndo_set_rx_mode
= i40e_set_rx_mode
,
11699 .ndo_validate_addr
= eth_validate_addr
,
11700 .ndo_set_mac_address
= i40e_set_mac
,
11701 .ndo_change_mtu
= i40e_change_mtu
,
11702 .ndo_do_ioctl
= i40e_ioctl
,
11703 .ndo_tx_timeout
= i40e_tx_timeout
,
11704 .ndo_vlan_rx_add_vid
= i40e_vlan_rx_add_vid
,
11705 .ndo_vlan_rx_kill_vid
= i40e_vlan_rx_kill_vid
,
11706 #ifdef CONFIG_NET_POLL_CONTROLLER
11707 .ndo_poll_controller
= i40e_netpoll
,
11709 .ndo_setup_tc
= __i40e_setup_tc
,
11710 .ndo_set_features
= i40e_set_features
,
11711 .ndo_set_vf_mac
= i40e_ndo_set_vf_mac
,
11712 .ndo_set_vf_vlan
= i40e_ndo_set_vf_port_vlan
,
11713 .ndo_set_vf_rate
= i40e_ndo_set_vf_bw
,
11714 .ndo_get_vf_config
= i40e_ndo_get_vf_config
,
11715 .ndo_set_vf_link_state
= i40e_ndo_set_vf_link_state
,
11716 .ndo_set_vf_spoofchk
= i40e_ndo_set_vf_spoofchk
,
11717 .ndo_set_vf_trust
= i40e_ndo_set_vf_trust
,
11718 .ndo_udp_tunnel_add
= i40e_udp_tunnel_add
,
11719 .ndo_udp_tunnel_del
= i40e_udp_tunnel_del
,
11720 .ndo_get_phys_port_id
= i40e_get_phys_port_id
,
11721 .ndo_fdb_add
= i40e_ndo_fdb_add
,
11722 .ndo_features_check
= i40e_features_check
,
11723 .ndo_bridge_getlink
= i40e_ndo_bridge_getlink
,
11724 .ndo_bridge_setlink
= i40e_ndo_bridge_setlink
,
11725 .ndo_bpf
= i40e_xdp
,
11729 * i40e_config_netdev - Setup the netdev flags
11730 * @vsi: the VSI being configured
11732 * Returns 0 on success, negative value on failure
11734 static int i40e_config_netdev(struct i40e_vsi
*vsi
)
11736 struct i40e_pf
*pf
= vsi
->back
;
11737 struct i40e_hw
*hw
= &pf
->hw
;
11738 struct i40e_netdev_priv
*np
;
11739 struct net_device
*netdev
;
11740 u8 broadcast
[ETH_ALEN
];
11741 u8 mac_addr
[ETH_ALEN
];
11743 netdev_features_t hw_enc_features
;
11744 netdev_features_t hw_features
;
11746 etherdev_size
= sizeof(struct i40e_netdev_priv
);
11747 netdev
= alloc_etherdev_mq(etherdev_size
, vsi
->alloc_queue_pairs
);
11751 vsi
->netdev
= netdev
;
11752 np
= netdev_priv(netdev
);
11755 hw_enc_features
= NETIF_F_SG
|
11757 NETIF_F_IPV6_CSUM
|
11759 NETIF_F_SOFT_FEATURES
|
11764 NETIF_F_GSO_GRE_CSUM
|
11765 NETIF_F_GSO_PARTIAL
|
11766 NETIF_F_GSO_UDP_TUNNEL
|
11767 NETIF_F_GSO_UDP_TUNNEL_CSUM
|
11773 if (!(pf
->hw_features
& I40E_HW_OUTER_UDP_CSUM_CAPABLE
))
11774 netdev
->gso_partial_features
|= NETIF_F_GSO_UDP_TUNNEL_CSUM
;
11776 netdev
->gso_partial_features
|= NETIF_F_GSO_GRE_CSUM
;
11778 netdev
->hw_enc_features
|= hw_enc_features
;
11780 /* record features VLANs can make use of */
11781 netdev
->vlan_features
|= hw_enc_features
| NETIF_F_TSO_MANGLEID
;
11783 if (!(pf
->flags
& I40E_FLAG_MFP_ENABLED
))
11784 netdev
->hw_features
|= NETIF_F_NTUPLE
| NETIF_F_HW_TC
;
11786 hw_features
= hw_enc_features
|
11787 NETIF_F_HW_VLAN_CTAG_TX
|
11788 NETIF_F_HW_VLAN_CTAG_RX
;
11790 netdev
->hw_features
|= hw_features
;
11792 netdev
->features
|= hw_features
| NETIF_F_HW_VLAN_CTAG_FILTER
;
11793 netdev
->hw_enc_features
|= NETIF_F_TSO_MANGLEID
;
11795 if (vsi
->type
== I40E_VSI_MAIN
) {
11796 SET_NETDEV_DEV(netdev
, &pf
->pdev
->dev
);
11797 ether_addr_copy(mac_addr
, hw
->mac
.perm_addr
);
11798 /* The following steps are necessary for two reasons. First,
11799 * some older NVM configurations load a default MAC-VLAN
11800 * filter that will accept any tagged packet, and we want to
11801 * replace this with a normal filter. Additionally, it is
11802 * possible our MAC address was provided by the platform using
11803 * Open Firmware or similar.
11805 * Thus, we need to remove the default filter and install one
11806 * specific to the MAC address.
11808 i40e_rm_default_mac_filter(vsi
, mac_addr
);
11809 spin_lock_bh(&vsi
->mac_filter_hash_lock
);
11810 i40e_add_mac_filter(vsi
, mac_addr
);
11811 spin_unlock_bh(&vsi
->mac_filter_hash_lock
);
11813 /* Relate the VSI_VMDQ name to the VSI_MAIN name. Note that we
11814 * are still limited by IFNAMSIZ, but we're adding 'v%d\0' to
11815 * the end, which is 4 bytes long, so force truncation of the
11816 * original name by IFNAMSIZ - 4
11818 snprintf(netdev
->name
, IFNAMSIZ
, "%.*sv%%d",
11820 pf
->vsi
[pf
->lan_vsi
]->netdev
->name
);
11821 random_ether_addr(mac_addr
);
11823 spin_lock_bh(&vsi
->mac_filter_hash_lock
);
11824 i40e_add_mac_filter(vsi
, mac_addr
);
11825 spin_unlock_bh(&vsi
->mac_filter_hash_lock
);
11828 /* Add the broadcast filter so that we initially will receive
11829 * broadcast packets. Note that when a new VLAN is first added the
11830 * driver will convert all filters marked I40E_VLAN_ANY into VLAN
11831 * specific filters as part of transitioning into "vlan" operation.
11832 * When more VLANs are added, the driver will copy each existing MAC
11833 * filter and add it for the new VLAN.
11835 * Broadcast filters are handled specially by
11836 * i40e_sync_filters_subtask, as the driver must to set the broadcast
11837 * promiscuous bit instead of adding this directly as a MAC/VLAN
11838 * filter. The subtask will update the correct broadcast promiscuous
11839 * bits as VLANs become active or inactive.
11841 eth_broadcast_addr(broadcast
);
11842 spin_lock_bh(&vsi
->mac_filter_hash_lock
);
11843 i40e_add_mac_filter(vsi
, broadcast
);
11844 spin_unlock_bh(&vsi
->mac_filter_hash_lock
);
11846 ether_addr_copy(netdev
->dev_addr
, mac_addr
);
11847 ether_addr_copy(netdev
->perm_addr
, mac_addr
);
11849 netdev
->priv_flags
|= IFF_UNICAST_FLT
;
11850 netdev
->priv_flags
|= IFF_SUPP_NOFCS
;
11851 /* Setup netdev TC information */
11852 i40e_vsi_config_netdev_tc(vsi
, vsi
->tc_config
.enabled_tc
);
11854 netdev
->netdev_ops
= &i40e_netdev_ops
;
11855 netdev
->watchdog_timeo
= 5 * HZ
;
11856 i40e_set_ethtool_ops(netdev
);
11858 /* MTU range: 68 - 9706 */
11859 netdev
->min_mtu
= ETH_MIN_MTU
;
11860 netdev
->max_mtu
= I40E_MAX_RXBUFFER
- I40E_PACKET_HDR_PAD
;
11866 * i40e_vsi_delete - Delete a VSI from the switch
11867 * @vsi: the VSI being removed
11869 * Returns 0 on success, negative value on failure
11871 static void i40e_vsi_delete(struct i40e_vsi
*vsi
)
11873 /* remove default VSI is not allowed */
11874 if (vsi
== vsi
->back
->vsi
[vsi
->back
->lan_vsi
])
11877 i40e_aq_delete_element(&vsi
->back
->hw
, vsi
->seid
, NULL
);
11881 * i40e_is_vsi_uplink_mode_veb - Check if the VSI's uplink bridge mode is VEB
11882 * @vsi: the VSI being queried
11884 * Returns 1 if HW bridge mode is VEB and return 0 in case of VEPA mode
11886 int i40e_is_vsi_uplink_mode_veb(struct i40e_vsi
*vsi
)
11888 struct i40e_veb
*veb
;
11889 struct i40e_pf
*pf
= vsi
->back
;
11891 /* Uplink is not a bridge so default to VEB */
11892 if (vsi
->veb_idx
== I40E_NO_VEB
)
11895 veb
= pf
->veb
[vsi
->veb_idx
];
11897 dev_info(&pf
->pdev
->dev
,
11898 "There is no veb associated with the bridge\n");
11902 /* Uplink is a bridge in VEPA mode */
11903 if (veb
->bridge_mode
& BRIDGE_MODE_VEPA
) {
11906 /* Uplink is a bridge in VEB mode */
11910 /* VEPA is now default bridge, so return 0 */
11915 * i40e_add_vsi - Add a VSI to the switch
11916 * @vsi: the VSI being configured
11918 * This initializes a VSI context depending on the VSI type to be added and
11919 * passes it down to the add_vsi aq command.
11921 static int i40e_add_vsi(struct i40e_vsi
*vsi
)
11924 struct i40e_pf
*pf
= vsi
->back
;
11925 struct i40e_hw
*hw
= &pf
->hw
;
11926 struct i40e_vsi_context ctxt
;
11927 struct i40e_mac_filter
*f
;
11928 struct hlist_node
*h
;
11931 u8 enabled_tc
= 0x1; /* TC0 enabled */
11934 memset(&ctxt
, 0, sizeof(ctxt
));
11935 switch (vsi
->type
) {
11936 case I40E_VSI_MAIN
:
11937 /* The PF's main VSI is already setup as part of the
11938 * device initialization, so we'll not bother with
11939 * the add_vsi call, but we will retrieve the current
11942 ctxt
.seid
= pf
->main_vsi_seid
;
11943 ctxt
.pf_num
= pf
->hw
.pf_id
;
11945 ret
= i40e_aq_get_vsi_params(&pf
->hw
, &ctxt
, NULL
);
11946 ctxt
.flags
= I40E_AQ_VSI_TYPE_PF
;
11948 dev_info(&pf
->pdev
->dev
,
11949 "couldn't get PF vsi config, err %s aq_err %s\n",
11950 i40e_stat_str(&pf
->hw
, ret
),
11951 i40e_aq_str(&pf
->hw
,
11952 pf
->hw
.aq
.asq_last_status
));
11955 vsi
->info
= ctxt
.info
;
11956 vsi
->info
.valid_sections
= 0;
11958 vsi
->seid
= ctxt
.seid
;
11959 vsi
->id
= ctxt
.vsi_number
;
11961 enabled_tc
= i40e_pf_get_tc_map(pf
);
11963 /* Source pruning is enabled by default, so the flag is
11964 * negative logic - if it's set, we need to fiddle with
11965 * the VSI to disable source pruning.
11967 if (pf
->flags
& I40E_FLAG_SOURCE_PRUNING_DISABLED
) {
11968 memset(&ctxt
, 0, sizeof(ctxt
));
11969 ctxt
.seid
= pf
->main_vsi_seid
;
11970 ctxt
.pf_num
= pf
->hw
.pf_id
;
11972 ctxt
.info
.valid_sections
|=
11973 cpu_to_le16(I40E_AQ_VSI_PROP_SWITCH_VALID
);
11974 ctxt
.info
.switch_id
=
11975 cpu_to_le16(I40E_AQ_VSI_SW_ID_FLAG_LOCAL_LB
);
11976 ret
= i40e_aq_update_vsi_params(hw
, &ctxt
, NULL
);
11978 dev_info(&pf
->pdev
->dev
,
11979 "update vsi failed, err %s aq_err %s\n",
11980 i40e_stat_str(&pf
->hw
, ret
),
11981 i40e_aq_str(&pf
->hw
,
11982 pf
->hw
.aq
.asq_last_status
));
11988 /* MFP mode setup queue map and update VSI */
11989 if ((pf
->flags
& I40E_FLAG_MFP_ENABLED
) &&
11990 !(pf
->hw
.func_caps
.iscsi
)) { /* NIC type PF */
11991 memset(&ctxt
, 0, sizeof(ctxt
));
11992 ctxt
.seid
= pf
->main_vsi_seid
;
11993 ctxt
.pf_num
= pf
->hw
.pf_id
;
11995 i40e_vsi_setup_queue_map(vsi
, &ctxt
, enabled_tc
, false);
11996 ret
= i40e_aq_update_vsi_params(hw
, &ctxt
, NULL
);
11998 dev_info(&pf
->pdev
->dev
,
11999 "update vsi failed, err %s aq_err %s\n",
12000 i40e_stat_str(&pf
->hw
, ret
),
12001 i40e_aq_str(&pf
->hw
,
12002 pf
->hw
.aq
.asq_last_status
));
12006 /* update the local VSI info queue map */
12007 i40e_vsi_update_queue_map(vsi
, &ctxt
);
12008 vsi
->info
.valid_sections
= 0;
12010 /* Default/Main VSI is only enabled for TC0
12011 * reconfigure it to enable all TCs that are
12012 * available on the port in SFP mode.
12013 * For MFP case the iSCSI PF would use this
12014 * flow to enable LAN+iSCSI TC.
12016 ret
= i40e_vsi_config_tc(vsi
, enabled_tc
);
12018 /* Single TC condition is not fatal,
12019 * message and continue
12021 dev_info(&pf
->pdev
->dev
,
12022 "failed to configure TCs for main VSI tc_map 0x%08x, err %s aq_err %s\n",
12024 i40e_stat_str(&pf
->hw
, ret
),
12025 i40e_aq_str(&pf
->hw
,
12026 pf
->hw
.aq
.asq_last_status
));
12031 case I40E_VSI_FDIR
:
12032 ctxt
.pf_num
= hw
->pf_id
;
12034 ctxt
.uplink_seid
= vsi
->uplink_seid
;
12035 ctxt
.connection_type
= I40E_AQ_VSI_CONN_TYPE_NORMAL
;
12036 ctxt
.flags
= I40E_AQ_VSI_TYPE_PF
;
12037 if ((pf
->flags
& I40E_FLAG_VEB_MODE_ENABLED
) &&
12038 (i40e_is_vsi_uplink_mode_veb(vsi
))) {
12039 ctxt
.info
.valid_sections
|=
12040 cpu_to_le16(I40E_AQ_VSI_PROP_SWITCH_VALID
);
12041 ctxt
.info
.switch_id
=
12042 cpu_to_le16(I40E_AQ_VSI_SW_ID_FLAG_ALLOW_LB
);
12044 i40e_vsi_setup_queue_map(vsi
, &ctxt
, enabled_tc
, true);
12047 case I40E_VSI_VMDQ2
:
12048 ctxt
.pf_num
= hw
->pf_id
;
12050 ctxt
.uplink_seid
= vsi
->uplink_seid
;
12051 ctxt
.connection_type
= I40E_AQ_VSI_CONN_TYPE_NORMAL
;
12052 ctxt
.flags
= I40E_AQ_VSI_TYPE_VMDQ2
;
12054 /* This VSI is connected to VEB so the switch_id
12055 * should be set to zero by default.
12057 if (i40e_is_vsi_uplink_mode_veb(vsi
)) {
12058 ctxt
.info
.valid_sections
|=
12059 cpu_to_le16(I40E_AQ_VSI_PROP_SWITCH_VALID
);
12060 ctxt
.info
.switch_id
=
12061 cpu_to_le16(I40E_AQ_VSI_SW_ID_FLAG_ALLOW_LB
);
12064 /* Setup the VSI tx/rx queue map for TC0 only for now */
12065 i40e_vsi_setup_queue_map(vsi
, &ctxt
, enabled_tc
, true);
12068 case I40E_VSI_SRIOV
:
12069 ctxt
.pf_num
= hw
->pf_id
;
12070 ctxt
.vf_num
= vsi
->vf_id
+ hw
->func_caps
.vf_base_id
;
12071 ctxt
.uplink_seid
= vsi
->uplink_seid
;
12072 ctxt
.connection_type
= I40E_AQ_VSI_CONN_TYPE_NORMAL
;
12073 ctxt
.flags
= I40E_AQ_VSI_TYPE_VF
;
12075 /* This VSI is connected to VEB so the switch_id
12076 * should be set to zero by default.
12078 if (i40e_is_vsi_uplink_mode_veb(vsi
)) {
12079 ctxt
.info
.valid_sections
|=
12080 cpu_to_le16(I40E_AQ_VSI_PROP_SWITCH_VALID
);
12081 ctxt
.info
.switch_id
=
12082 cpu_to_le16(I40E_AQ_VSI_SW_ID_FLAG_ALLOW_LB
);
12085 if (vsi
->back
->flags
& I40E_FLAG_IWARP_ENABLED
) {
12086 ctxt
.info
.valid_sections
|=
12087 cpu_to_le16(I40E_AQ_VSI_PROP_QUEUE_OPT_VALID
);
12088 ctxt
.info
.queueing_opt_flags
|=
12089 (I40E_AQ_VSI_QUE_OPT_TCP_ENA
|
12090 I40E_AQ_VSI_QUE_OPT_RSS_LUT_VSI
);
12093 ctxt
.info
.valid_sections
|= cpu_to_le16(I40E_AQ_VSI_PROP_VLAN_VALID
);
12094 ctxt
.info
.port_vlan_flags
|= I40E_AQ_VSI_PVLAN_MODE_ALL
;
12095 if (pf
->vf
[vsi
->vf_id
].spoofchk
) {
12096 ctxt
.info
.valid_sections
|=
12097 cpu_to_le16(I40E_AQ_VSI_PROP_SECURITY_VALID
);
12098 ctxt
.info
.sec_flags
|=
12099 (I40E_AQ_VSI_SEC_FLAG_ENABLE_VLAN_CHK
|
12100 I40E_AQ_VSI_SEC_FLAG_ENABLE_MAC_CHK
);
12102 /* Setup the VSI tx/rx queue map for TC0 only for now */
12103 i40e_vsi_setup_queue_map(vsi
, &ctxt
, enabled_tc
, true);
12106 case I40E_VSI_IWARP
:
12107 /* send down message to iWARP */
12114 if (vsi
->type
!= I40E_VSI_MAIN
) {
12115 ret
= i40e_aq_add_vsi(hw
, &ctxt
, NULL
);
12117 dev_info(&vsi
->back
->pdev
->dev
,
12118 "add vsi failed, err %s aq_err %s\n",
12119 i40e_stat_str(&pf
->hw
, ret
),
12120 i40e_aq_str(&pf
->hw
,
12121 pf
->hw
.aq
.asq_last_status
));
12125 vsi
->info
= ctxt
.info
;
12126 vsi
->info
.valid_sections
= 0;
12127 vsi
->seid
= ctxt
.seid
;
12128 vsi
->id
= ctxt
.vsi_number
;
12131 vsi
->active_filters
= 0;
12132 clear_bit(__I40E_VSI_OVERFLOW_PROMISC
, vsi
->state
);
12133 spin_lock_bh(&vsi
->mac_filter_hash_lock
);
12134 /* If macvlan filters already exist, force them to get loaded */
12135 hash_for_each_safe(vsi
->mac_filter_hash
, bkt
, h
, f
, hlist
) {
12136 f
->state
= I40E_FILTER_NEW
;
12139 spin_unlock_bh(&vsi
->mac_filter_hash_lock
);
12142 vsi
->flags
|= I40E_VSI_FLAG_FILTER_CHANGED
;
12143 pf
->flags
|= I40E_FLAG_FILTER_SYNC
;
12146 /* Update VSI BW information */
12147 ret
= i40e_vsi_get_bw_info(vsi
);
12149 dev_info(&pf
->pdev
->dev
,
12150 "couldn't get vsi bw info, err %s aq_err %s\n",
12151 i40e_stat_str(&pf
->hw
, ret
),
12152 i40e_aq_str(&pf
->hw
, pf
->hw
.aq
.asq_last_status
));
12153 /* VSI is already added so not tearing that up */
12162 * i40e_vsi_release - Delete a VSI and free its resources
12163 * @vsi: the VSI being removed
12165 * Returns 0 on success or < 0 on error
12167 int i40e_vsi_release(struct i40e_vsi
*vsi
)
12169 struct i40e_mac_filter
*f
;
12170 struct hlist_node
*h
;
12171 struct i40e_veb
*veb
= NULL
;
12172 struct i40e_pf
*pf
;
12178 /* release of a VEB-owner or last VSI is not allowed */
12179 if (vsi
->flags
& I40E_VSI_FLAG_VEB_OWNER
) {
12180 dev_info(&pf
->pdev
->dev
, "VSI %d has existing VEB %d\n",
12181 vsi
->seid
, vsi
->uplink_seid
);
12184 if (vsi
== pf
->vsi
[pf
->lan_vsi
] &&
12185 !test_bit(__I40E_DOWN
, pf
->state
)) {
12186 dev_info(&pf
->pdev
->dev
, "Can't remove PF VSI\n");
12190 uplink_seid
= vsi
->uplink_seid
;
12191 if (vsi
->type
!= I40E_VSI_SRIOV
) {
12192 if (vsi
->netdev_registered
) {
12193 vsi
->netdev_registered
= false;
12195 /* results in a call to i40e_close() */
12196 unregister_netdev(vsi
->netdev
);
12199 i40e_vsi_close(vsi
);
12201 i40e_vsi_disable_irq(vsi
);
12204 spin_lock_bh(&vsi
->mac_filter_hash_lock
);
12206 /* clear the sync flag on all filters */
12208 __dev_uc_unsync(vsi
->netdev
, NULL
);
12209 __dev_mc_unsync(vsi
->netdev
, NULL
);
12212 /* make sure any remaining filters are marked for deletion */
12213 hash_for_each_safe(vsi
->mac_filter_hash
, bkt
, h
, f
, hlist
)
12214 __i40e_del_filter(vsi
, f
);
12216 spin_unlock_bh(&vsi
->mac_filter_hash_lock
);
12218 i40e_sync_vsi_filters(vsi
);
12220 i40e_vsi_delete(vsi
);
12221 i40e_vsi_free_q_vectors(vsi
);
12223 free_netdev(vsi
->netdev
);
12224 vsi
->netdev
= NULL
;
12226 i40e_vsi_clear_rings(vsi
);
12227 i40e_vsi_clear(vsi
);
12229 /* If this was the last thing on the VEB, except for the
12230 * controlling VSI, remove the VEB, which puts the controlling
12231 * VSI onto the next level down in the switch.
12233 * Well, okay, there's one more exception here: don't remove
12234 * the orphan VEBs yet. We'll wait for an explicit remove request
12235 * from up the network stack.
12237 for (n
= 0, i
= 0; i
< pf
->num_alloc_vsi
; i
++) {
12239 pf
->vsi
[i
]->uplink_seid
== uplink_seid
&&
12240 (pf
->vsi
[i
]->flags
& I40E_VSI_FLAG_VEB_OWNER
) == 0) {
12241 n
++; /* count the VSIs */
12244 for (i
= 0; i
< I40E_MAX_VEB
; i
++) {
12247 if (pf
->veb
[i
]->uplink_seid
== uplink_seid
)
12248 n
++; /* count the VEBs */
12249 if (pf
->veb
[i
]->seid
== uplink_seid
)
12252 if (n
== 0 && veb
&& veb
->uplink_seid
!= 0)
12253 i40e_veb_release(veb
);
12259 * i40e_vsi_setup_vectors - Set up the q_vectors for the given VSI
12260 * @vsi: ptr to the VSI
12262 * This should only be called after i40e_vsi_mem_alloc() which allocates the
12263 * corresponding SW VSI structure and initializes num_queue_pairs for the
12264 * newly allocated VSI.
12266 * Returns 0 on success or negative on failure
12268 static int i40e_vsi_setup_vectors(struct i40e_vsi
*vsi
)
12271 struct i40e_pf
*pf
= vsi
->back
;
12273 if (vsi
->q_vectors
[0]) {
12274 dev_info(&pf
->pdev
->dev
, "VSI %d has existing q_vectors\n",
12279 if (vsi
->base_vector
) {
12280 dev_info(&pf
->pdev
->dev
, "VSI %d has non-zero base vector %d\n",
12281 vsi
->seid
, vsi
->base_vector
);
12285 ret
= i40e_vsi_alloc_q_vectors(vsi
);
12287 dev_info(&pf
->pdev
->dev
,
12288 "failed to allocate %d q_vector for VSI %d, ret=%d\n",
12289 vsi
->num_q_vectors
, vsi
->seid
, ret
);
12290 vsi
->num_q_vectors
= 0;
12291 goto vector_setup_out
;
12294 /* In Legacy mode, we do not have to get any other vector since we
12295 * piggyback on the misc/ICR0 for queue interrupts.
12297 if (!(pf
->flags
& I40E_FLAG_MSIX_ENABLED
))
12299 if (vsi
->num_q_vectors
)
12300 vsi
->base_vector
= i40e_get_lump(pf
, pf
->irq_pile
,
12301 vsi
->num_q_vectors
, vsi
->idx
);
12302 if (vsi
->base_vector
< 0) {
12303 dev_info(&pf
->pdev
->dev
,
12304 "failed to get tracking for %d vectors for VSI %d, err=%d\n",
12305 vsi
->num_q_vectors
, vsi
->seid
, vsi
->base_vector
);
12306 i40e_vsi_free_q_vectors(vsi
);
12308 goto vector_setup_out
;
12316 * i40e_vsi_reinit_setup - return and reallocate resources for a VSI
12317 * @vsi: pointer to the vsi.
12319 * This re-allocates a vsi's queue resources.
12321 * Returns pointer to the successfully allocated and configured VSI sw struct
12322 * on success, otherwise returns NULL on failure.
12324 static struct i40e_vsi
*i40e_vsi_reinit_setup(struct i40e_vsi
*vsi
)
12326 u16 alloc_queue_pairs
;
12327 struct i40e_pf
*pf
;
12336 i40e_put_lump(pf
->qp_pile
, vsi
->base_queue
, vsi
->idx
);
12337 i40e_vsi_clear_rings(vsi
);
12339 i40e_vsi_free_arrays(vsi
, false);
12340 i40e_set_num_rings_in_vsi(vsi
);
12341 ret
= i40e_vsi_alloc_arrays(vsi
, false);
12345 alloc_queue_pairs
= vsi
->alloc_queue_pairs
*
12346 (i40e_enabled_xdp_vsi(vsi
) ? 2 : 1);
12348 ret
= i40e_get_lump(pf
, pf
->qp_pile
, alloc_queue_pairs
, vsi
->idx
);
12350 dev_info(&pf
->pdev
->dev
,
12351 "failed to get tracking for %d queues for VSI %d err %d\n",
12352 alloc_queue_pairs
, vsi
->seid
, ret
);
12355 vsi
->base_queue
= ret
;
12357 /* Update the FW view of the VSI. Force a reset of TC and queue
12358 * layout configurations.
12360 enabled_tc
= pf
->vsi
[pf
->lan_vsi
]->tc_config
.enabled_tc
;
12361 pf
->vsi
[pf
->lan_vsi
]->tc_config
.enabled_tc
= 0;
12362 pf
->vsi
[pf
->lan_vsi
]->seid
= pf
->main_vsi_seid
;
12363 i40e_vsi_config_tc(pf
->vsi
[pf
->lan_vsi
], enabled_tc
);
12364 if (vsi
->type
== I40E_VSI_MAIN
)
12365 i40e_rm_default_mac_filter(vsi
, pf
->hw
.mac
.perm_addr
);
12367 /* assign it some queues */
12368 ret
= i40e_alloc_rings(vsi
);
12372 /* map all of the rings to the q_vectors */
12373 i40e_vsi_map_rings_to_vectors(vsi
);
12377 i40e_vsi_free_q_vectors(vsi
);
12378 if (vsi
->netdev_registered
) {
12379 vsi
->netdev_registered
= false;
12380 unregister_netdev(vsi
->netdev
);
12381 free_netdev(vsi
->netdev
);
12382 vsi
->netdev
= NULL
;
12384 i40e_aq_delete_element(&pf
->hw
, vsi
->seid
, NULL
);
12386 i40e_vsi_clear(vsi
);
12391 * i40e_vsi_setup - Set up a VSI by a given type
12392 * @pf: board private structure
12394 * @uplink_seid: the switch element to link to
12395 * @param1: usage depends upon VSI type. For VF types, indicates VF id
12397 * This allocates the sw VSI structure and its queue resources, then add a VSI
12398 * to the identified VEB.
12400 * Returns pointer to the successfully allocated and configure VSI sw struct on
12401 * success, otherwise returns NULL on failure.
12403 struct i40e_vsi
*i40e_vsi_setup(struct i40e_pf
*pf
, u8 type
,
12404 u16 uplink_seid
, u32 param1
)
12406 struct i40e_vsi
*vsi
= NULL
;
12407 struct i40e_veb
*veb
= NULL
;
12408 u16 alloc_queue_pairs
;
12412 /* The requested uplink_seid must be either
12413 * - the PF's port seid
12414 * no VEB is needed because this is the PF
12415 * or this is a Flow Director special case VSI
12416 * - seid of an existing VEB
12417 * - seid of a VSI that owns an existing VEB
12418 * - seid of a VSI that doesn't own a VEB
12419 * a new VEB is created and the VSI becomes the owner
12420 * - seid of the PF VSI, which is what creates the first VEB
12421 * this is a special case of the previous
12423 * Find which uplink_seid we were given and create a new VEB if needed
12425 for (i
= 0; i
< I40E_MAX_VEB
; i
++) {
12426 if (pf
->veb
[i
] && pf
->veb
[i
]->seid
== uplink_seid
) {
12432 if (!veb
&& uplink_seid
!= pf
->mac_seid
) {
12434 for (i
= 0; i
< pf
->num_alloc_vsi
; i
++) {
12435 if (pf
->vsi
[i
] && pf
->vsi
[i
]->seid
== uplink_seid
) {
12441 dev_info(&pf
->pdev
->dev
, "no such uplink_seid %d\n",
12446 if (vsi
->uplink_seid
== pf
->mac_seid
)
12447 veb
= i40e_veb_setup(pf
, 0, pf
->mac_seid
, vsi
->seid
,
12448 vsi
->tc_config
.enabled_tc
);
12449 else if ((vsi
->flags
& I40E_VSI_FLAG_VEB_OWNER
) == 0)
12450 veb
= i40e_veb_setup(pf
, 0, vsi
->uplink_seid
, vsi
->seid
,
12451 vsi
->tc_config
.enabled_tc
);
12453 if (vsi
->seid
!= pf
->vsi
[pf
->lan_vsi
]->seid
) {
12454 dev_info(&vsi
->back
->pdev
->dev
,
12455 "New VSI creation error, uplink seid of LAN VSI expected.\n");
12458 /* We come up by default in VEPA mode if SRIOV is not
12459 * already enabled, in which case we can't force VEPA
12462 if (!(pf
->flags
& I40E_FLAG_VEB_MODE_ENABLED
)) {
12463 veb
->bridge_mode
= BRIDGE_MODE_VEPA
;
12464 pf
->flags
&= ~I40E_FLAG_VEB_MODE_ENABLED
;
12466 i40e_config_bridge_mode(veb
);
12468 for (i
= 0; i
< I40E_MAX_VEB
&& !veb
; i
++) {
12469 if (pf
->veb
[i
] && pf
->veb
[i
]->seid
== vsi
->uplink_seid
)
12473 dev_info(&pf
->pdev
->dev
, "couldn't add VEB\n");
12477 vsi
->flags
|= I40E_VSI_FLAG_VEB_OWNER
;
12478 uplink_seid
= veb
->seid
;
12481 /* get vsi sw struct */
12482 v_idx
= i40e_vsi_mem_alloc(pf
, type
);
12485 vsi
= pf
->vsi
[v_idx
];
12489 vsi
->veb_idx
= (veb
? veb
->idx
: I40E_NO_VEB
);
12491 if (type
== I40E_VSI_MAIN
)
12492 pf
->lan_vsi
= v_idx
;
12493 else if (type
== I40E_VSI_SRIOV
)
12494 vsi
->vf_id
= param1
;
12495 /* assign it some queues */
12496 alloc_queue_pairs
= vsi
->alloc_queue_pairs
*
12497 (i40e_enabled_xdp_vsi(vsi
) ? 2 : 1);
12499 ret
= i40e_get_lump(pf
, pf
->qp_pile
, alloc_queue_pairs
, vsi
->idx
);
12501 dev_info(&pf
->pdev
->dev
,
12502 "failed to get tracking for %d queues for VSI %d err=%d\n",
12503 alloc_queue_pairs
, vsi
->seid
, ret
);
12506 vsi
->base_queue
= ret
;
12508 /* get a VSI from the hardware */
12509 vsi
->uplink_seid
= uplink_seid
;
12510 ret
= i40e_add_vsi(vsi
);
12514 switch (vsi
->type
) {
12515 /* setup the netdev if needed */
12516 case I40E_VSI_MAIN
:
12517 case I40E_VSI_VMDQ2
:
12518 ret
= i40e_config_netdev(vsi
);
12521 ret
= register_netdev(vsi
->netdev
);
12524 vsi
->netdev_registered
= true;
12525 netif_carrier_off(vsi
->netdev
);
12526 #ifdef CONFIG_I40E_DCB
12527 /* Setup DCB netlink interface */
12528 i40e_dcbnl_setup(vsi
);
12529 #endif /* CONFIG_I40E_DCB */
12532 case I40E_VSI_FDIR
:
12533 /* set up vectors and rings if needed */
12534 ret
= i40e_vsi_setup_vectors(vsi
);
12538 ret
= i40e_alloc_rings(vsi
);
12542 /* map all of the rings to the q_vectors */
12543 i40e_vsi_map_rings_to_vectors(vsi
);
12545 i40e_vsi_reset_stats(vsi
);
12549 /* no netdev or rings for the other VSI types */
12553 if ((pf
->hw_features
& I40E_HW_RSS_AQ_CAPABLE
) &&
12554 (vsi
->type
== I40E_VSI_VMDQ2
)) {
12555 ret
= i40e_vsi_config_rss(vsi
);
12560 i40e_vsi_free_q_vectors(vsi
);
12562 if (vsi
->netdev_registered
) {
12563 vsi
->netdev_registered
= false;
12564 unregister_netdev(vsi
->netdev
);
12565 free_netdev(vsi
->netdev
);
12566 vsi
->netdev
= NULL
;
12569 i40e_aq_delete_element(&pf
->hw
, vsi
->seid
, NULL
);
12571 i40e_vsi_clear(vsi
);
12577 * i40e_veb_get_bw_info - Query VEB BW information
12578 * @veb: the veb to query
12580 * Query the Tx scheduler BW configuration data for given VEB
12582 static int i40e_veb_get_bw_info(struct i40e_veb
*veb
)
12584 struct i40e_aqc_query_switching_comp_ets_config_resp ets_data
;
12585 struct i40e_aqc_query_switching_comp_bw_config_resp bw_data
;
12586 struct i40e_pf
*pf
= veb
->pf
;
12587 struct i40e_hw
*hw
= &pf
->hw
;
12592 ret
= i40e_aq_query_switch_comp_bw_config(hw
, veb
->seid
,
12595 dev_info(&pf
->pdev
->dev
,
12596 "query veb bw config failed, err %s aq_err %s\n",
12597 i40e_stat_str(&pf
->hw
, ret
),
12598 i40e_aq_str(&pf
->hw
, hw
->aq
.asq_last_status
));
12602 ret
= i40e_aq_query_switch_comp_ets_config(hw
, veb
->seid
,
12605 dev_info(&pf
->pdev
->dev
,
12606 "query veb bw ets config failed, err %s aq_err %s\n",
12607 i40e_stat_str(&pf
->hw
, ret
),
12608 i40e_aq_str(&pf
->hw
, hw
->aq
.asq_last_status
));
12612 veb
->bw_limit
= le16_to_cpu(ets_data
.port_bw_limit
);
12613 veb
->bw_max_quanta
= ets_data
.tc_bw_max
;
12614 veb
->is_abs_credits
= bw_data
.absolute_credits_enable
;
12615 veb
->enabled_tc
= ets_data
.tc_valid_bits
;
12616 tc_bw_max
= le16_to_cpu(bw_data
.tc_bw_max
[0]) |
12617 (le16_to_cpu(bw_data
.tc_bw_max
[1]) << 16);
12618 for (i
= 0; i
< I40E_MAX_TRAFFIC_CLASS
; i
++) {
12619 veb
->bw_tc_share_credits
[i
] = bw_data
.tc_bw_share_credits
[i
];
12620 veb
->bw_tc_limit_credits
[i
] =
12621 le16_to_cpu(bw_data
.tc_bw_limits
[i
]);
12622 veb
->bw_tc_max_quanta
[i
] = ((tc_bw_max
>> (i
*4)) & 0x7);
12630 * i40e_veb_mem_alloc - Allocates the next available struct veb in the PF
12631 * @pf: board private structure
12633 * On error: returns error code (negative)
12634 * On success: returns vsi index in PF (positive)
12636 static int i40e_veb_mem_alloc(struct i40e_pf
*pf
)
12639 struct i40e_veb
*veb
;
12642 /* Need to protect the allocation of switch elements at the PF level */
12643 mutex_lock(&pf
->switch_mutex
);
12645 /* VEB list may be fragmented if VEB creation/destruction has
12646 * been happening. We can afford to do a quick scan to look
12647 * for any free slots in the list.
12649 * find next empty veb slot, looping back around if necessary
12652 while ((i
< I40E_MAX_VEB
) && (pf
->veb
[i
] != NULL
))
12654 if (i
>= I40E_MAX_VEB
) {
12656 goto err_alloc_veb
; /* out of VEB slots! */
12659 veb
= kzalloc(sizeof(*veb
), GFP_KERNEL
);
12662 goto err_alloc_veb
;
12666 veb
->enabled_tc
= 1;
12671 mutex_unlock(&pf
->switch_mutex
);
12676 * i40e_switch_branch_release - Delete a branch of the switch tree
12677 * @branch: where to start deleting
12679 * This uses recursion to find the tips of the branch to be
12680 * removed, deleting until we get back to and can delete this VEB.
12682 static void i40e_switch_branch_release(struct i40e_veb
*branch
)
12684 struct i40e_pf
*pf
= branch
->pf
;
12685 u16 branch_seid
= branch
->seid
;
12686 u16 veb_idx
= branch
->idx
;
12689 /* release any VEBs on this VEB - RECURSION */
12690 for (i
= 0; i
< I40E_MAX_VEB
; i
++) {
12693 if (pf
->veb
[i
]->uplink_seid
== branch
->seid
)
12694 i40e_switch_branch_release(pf
->veb
[i
]);
12697 /* Release the VSIs on this VEB, but not the owner VSI.
12699 * NOTE: Removing the last VSI on a VEB has the SIDE EFFECT of removing
12700 * the VEB itself, so don't use (*branch) after this loop.
12702 for (i
= 0; i
< pf
->num_alloc_vsi
; i
++) {
12705 if (pf
->vsi
[i
]->uplink_seid
== branch_seid
&&
12706 (pf
->vsi
[i
]->flags
& I40E_VSI_FLAG_VEB_OWNER
) == 0) {
12707 i40e_vsi_release(pf
->vsi
[i
]);
12711 /* There's one corner case where the VEB might not have been
12712 * removed, so double check it here and remove it if needed.
12713 * This case happens if the veb was created from the debugfs
12714 * commands and no VSIs were added to it.
12716 if (pf
->veb
[veb_idx
])
12717 i40e_veb_release(pf
->veb
[veb_idx
]);
12721 * i40e_veb_clear - remove veb struct
12722 * @veb: the veb to remove
12724 static void i40e_veb_clear(struct i40e_veb
*veb
)
12730 struct i40e_pf
*pf
= veb
->pf
;
12732 mutex_lock(&pf
->switch_mutex
);
12733 if (pf
->veb
[veb
->idx
] == veb
)
12734 pf
->veb
[veb
->idx
] = NULL
;
12735 mutex_unlock(&pf
->switch_mutex
);
12742 * i40e_veb_release - Delete a VEB and free its resources
12743 * @veb: the VEB being removed
12745 void i40e_veb_release(struct i40e_veb
*veb
)
12747 struct i40e_vsi
*vsi
= NULL
;
12748 struct i40e_pf
*pf
;
12753 /* find the remaining VSI and check for extras */
12754 for (i
= 0; i
< pf
->num_alloc_vsi
; i
++) {
12755 if (pf
->vsi
[i
] && pf
->vsi
[i
]->uplink_seid
== veb
->seid
) {
12761 dev_info(&pf
->pdev
->dev
,
12762 "can't remove VEB %d with %d VSIs left\n",
12767 /* move the remaining VSI to uplink veb */
12768 vsi
->flags
&= ~I40E_VSI_FLAG_VEB_OWNER
;
12769 if (veb
->uplink_seid
) {
12770 vsi
->uplink_seid
= veb
->uplink_seid
;
12771 if (veb
->uplink_seid
== pf
->mac_seid
)
12772 vsi
->veb_idx
= I40E_NO_VEB
;
12774 vsi
->veb_idx
= veb
->veb_idx
;
12777 vsi
->uplink_seid
= pf
->vsi
[pf
->lan_vsi
]->uplink_seid
;
12778 vsi
->veb_idx
= pf
->vsi
[pf
->lan_vsi
]->veb_idx
;
12781 i40e_aq_delete_element(&pf
->hw
, veb
->seid
, NULL
);
12782 i40e_veb_clear(veb
);
12786 * i40e_add_veb - create the VEB in the switch
12787 * @veb: the VEB to be instantiated
12788 * @vsi: the controlling VSI
12790 static int i40e_add_veb(struct i40e_veb
*veb
, struct i40e_vsi
*vsi
)
12792 struct i40e_pf
*pf
= veb
->pf
;
12793 bool enable_stats
= !!(pf
->flags
& I40E_FLAG_VEB_STATS_ENABLED
);
12796 ret
= i40e_aq_add_veb(&pf
->hw
, veb
->uplink_seid
, vsi
->seid
,
12797 veb
->enabled_tc
, false,
12798 &veb
->seid
, enable_stats
, NULL
);
12800 /* get a VEB from the hardware */
12802 dev_info(&pf
->pdev
->dev
,
12803 "couldn't add VEB, err %s aq_err %s\n",
12804 i40e_stat_str(&pf
->hw
, ret
),
12805 i40e_aq_str(&pf
->hw
, pf
->hw
.aq
.asq_last_status
));
12809 /* get statistics counter */
12810 ret
= i40e_aq_get_veb_parameters(&pf
->hw
, veb
->seid
, NULL
, NULL
,
12811 &veb
->stats_idx
, NULL
, NULL
, NULL
);
12813 dev_info(&pf
->pdev
->dev
,
12814 "couldn't get VEB statistics idx, err %s aq_err %s\n",
12815 i40e_stat_str(&pf
->hw
, ret
),
12816 i40e_aq_str(&pf
->hw
, pf
->hw
.aq
.asq_last_status
));
12819 ret
= i40e_veb_get_bw_info(veb
);
12821 dev_info(&pf
->pdev
->dev
,
12822 "couldn't get VEB bw info, err %s aq_err %s\n",
12823 i40e_stat_str(&pf
->hw
, ret
),
12824 i40e_aq_str(&pf
->hw
, pf
->hw
.aq
.asq_last_status
));
12825 i40e_aq_delete_element(&pf
->hw
, veb
->seid
, NULL
);
12829 vsi
->uplink_seid
= veb
->seid
;
12830 vsi
->veb_idx
= veb
->idx
;
12831 vsi
->flags
|= I40E_VSI_FLAG_VEB_OWNER
;
12837 * i40e_veb_setup - Set up a VEB
12838 * @pf: board private structure
12839 * @flags: VEB setup flags
12840 * @uplink_seid: the switch element to link to
12841 * @vsi_seid: the initial VSI seid
12842 * @enabled_tc: Enabled TC bit-map
12844 * This allocates the sw VEB structure and links it into the switch
12845 * It is possible and legal for this to be a duplicate of an already
12846 * existing VEB. It is also possible for both uplink and vsi seids
12847 * to be zero, in order to create a floating VEB.
12849 * Returns pointer to the successfully allocated VEB sw struct on
12850 * success, otherwise returns NULL on failure.
12852 struct i40e_veb
*i40e_veb_setup(struct i40e_pf
*pf
, u16 flags
,
12853 u16 uplink_seid
, u16 vsi_seid
,
12856 struct i40e_veb
*veb
, *uplink_veb
= NULL
;
12857 int vsi_idx
, veb_idx
;
12860 /* if one seid is 0, the other must be 0 to create a floating relay */
12861 if ((uplink_seid
== 0 || vsi_seid
== 0) &&
12862 (uplink_seid
+ vsi_seid
!= 0)) {
12863 dev_info(&pf
->pdev
->dev
,
12864 "one, not both seid's are 0: uplink=%d vsi=%d\n",
12865 uplink_seid
, vsi_seid
);
12869 /* make sure there is such a vsi and uplink */
12870 for (vsi_idx
= 0; vsi_idx
< pf
->num_alloc_vsi
; vsi_idx
++)
12871 if (pf
->vsi
[vsi_idx
] && pf
->vsi
[vsi_idx
]->seid
== vsi_seid
)
12873 if (vsi_idx
>= pf
->num_alloc_vsi
&& vsi_seid
!= 0) {
12874 dev_info(&pf
->pdev
->dev
, "vsi seid %d not found\n",
12879 if (uplink_seid
&& uplink_seid
!= pf
->mac_seid
) {
12880 for (veb_idx
= 0; veb_idx
< I40E_MAX_VEB
; veb_idx
++) {
12881 if (pf
->veb
[veb_idx
] &&
12882 pf
->veb
[veb_idx
]->seid
== uplink_seid
) {
12883 uplink_veb
= pf
->veb
[veb_idx
];
12888 dev_info(&pf
->pdev
->dev
,
12889 "uplink seid %d not found\n", uplink_seid
);
12894 /* get veb sw struct */
12895 veb_idx
= i40e_veb_mem_alloc(pf
);
12898 veb
= pf
->veb
[veb_idx
];
12899 veb
->flags
= flags
;
12900 veb
->uplink_seid
= uplink_seid
;
12901 veb
->veb_idx
= (uplink_veb
? uplink_veb
->idx
: I40E_NO_VEB
);
12902 veb
->enabled_tc
= (enabled_tc
? enabled_tc
: 0x1);
12904 /* create the VEB in the switch */
12905 ret
= i40e_add_veb(veb
, pf
->vsi
[vsi_idx
]);
12908 if (vsi_idx
== pf
->lan_vsi
)
12909 pf
->lan_veb
= veb
->idx
;
12914 i40e_veb_clear(veb
);
12920 * i40e_setup_pf_switch_element - set PF vars based on switch type
12921 * @pf: board private structure
12922 * @ele: element we are building info from
12923 * @num_reported: total number of elements
12924 * @printconfig: should we print the contents
12926 * helper function to assist in extracting a few useful SEID values.
12928 static void i40e_setup_pf_switch_element(struct i40e_pf
*pf
,
12929 struct i40e_aqc_switch_config_element_resp
*ele
,
12930 u16 num_reported
, bool printconfig
)
12932 u16 downlink_seid
= le16_to_cpu(ele
->downlink_seid
);
12933 u16 uplink_seid
= le16_to_cpu(ele
->uplink_seid
);
12934 u8 element_type
= ele
->element_type
;
12935 u16 seid
= le16_to_cpu(ele
->seid
);
12938 dev_info(&pf
->pdev
->dev
,
12939 "type=%d seid=%d uplink=%d downlink=%d\n",
12940 element_type
, seid
, uplink_seid
, downlink_seid
);
12942 switch (element_type
) {
12943 case I40E_SWITCH_ELEMENT_TYPE_MAC
:
12944 pf
->mac_seid
= seid
;
12946 case I40E_SWITCH_ELEMENT_TYPE_VEB
:
12948 if (uplink_seid
!= pf
->mac_seid
)
12950 if (pf
->lan_veb
== I40E_NO_VEB
) {
12953 /* find existing or else empty VEB */
12954 for (v
= 0; v
< I40E_MAX_VEB
; v
++) {
12955 if (pf
->veb
[v
] && (pf
->veb
[v
]->seid
== seid
)) {
12960 if (pf
->lan_veb
== I40E_NO_VEB
) {
12961 v
= i40e_veb_mem_alloc(pf
);
12968 pf
->veb
[pf
->lan_veb
]->seid
= seid
;
12969 pf
->veb
[pf
->lan_veb
]->uplink_seid
= pf
->mac_seid
;
12970 pf
->veb
[pf
->lan_veb
]->pf
= pf
;
12971 pf
->veb
[pf
->lan_veb
]->veb_idx
= I40E_NO_VEB
;
12973 case I40E_SWITCH_ELEMENT_TYPE_VSI
:
12974 if (num_reported
!= 1)
12976 /* This is immediately after a reset so we can assume this is
12979 pf
->mac_seid
= uplink_seid
;
12980 pf
->pf_seid
= downlink_seid
;
12981 pf
->main_vsi_seid
= seid
;
12983 dev_info(&pf
->pdev
->dev
,
12984 "pf_seid=%d main_vsi_seid=%d\n",
12985 pf
->pf_seid
, pf
->main_vsi_seid
);
12987 case I40E_SWITCH_ELEMENT_TYPE_PF
:
12988 case I40E_SWITCH_ELEMENT_TYPE_VF
:
12989 case I40E_SWITCH_ELEMENT_TYPE_EMP
:
12990 case I40E_SWITCH_ELEMENT_TYPE_BMC
:
12991 case I40E_SWITCH_ELEMENT_TYPE_PE
:
12992 case I40E_SWITCH_ELEMENT_TYPE_PA
:
12993 /* ignore these for now */
12996 dev_info(&pf
->pdev
->dev
, "unknown element type=%d seid=%d\n",
12997 element_type
, seid
);
13003 * i40e_fetch_switch_configuration - Get switch config from firmware
13004 * @pf: board private structure
13005 * @printconfig: should we print the contents
13007 * Get the current switch configuration from the device and
13008 * extract a few useful SEID values.
13010 int i40e_fetch_switch_configuration(struct i40e_pf
*pf
, bool printconfig
)
13012 struct i40e_aqc_get_switch_config_resp
*sw_config
;
13018 aq_buf
= kzalloc(I40E_AQ_LARGE_BUF
, GFP_KERNEL
);
13022 sw_config
= (struct i40e_aqc_get_switch_config_resp
*)aq_buf
;
13024 u16 num_reported
, num_total
;
13026 ret
= i40e_aq_get_switch_config(&pf
->hw
, sw_config
,
13030 dev_info(&pf
->pdev
->dev
,
13031 "get switch config failed err %s aq_err %s\n",
13032 i40e_stat_str(&pf
->hw
, ret
),
13033 i40e_aq_str(&pf
->hw
,
13034 pf
->hw
.aq
.asq_last_status
));
13039 num_reported
= le16_to_cpu(sw_config
->header
.num_reported
);
13040 num_total
= le16_to_cpu(sw_config
->header
.num_total
);
13043 dev_info(&pf
->pdev
->dev
,
13044 "header: %d reported %d total\n",
13045 num_reported
, num_total
);
13047 for (i
= 0; i
< num_reported
; i
++) {
13048 struct i40e_aqc_switch_config_element_resp
*ele
=
13049 &sw_config
->element
[i
];
13051 i40e_setup_pf_switch_element(pf
, ele
, num_reported
,
13054 } while (next_seid
!= 0);
13061 * i40e_setup_pf_switch - Setup the HW switch on startup or after reset
13062 * @pf: board private structure
13063 * @reinit: if the Main VSI needs to re-initialized.
13065 * Returns 0 on success, negative value on failure
13067 static int i40e_setup_pf_switch(struct i40e_pf
*pf
, bool reinit
)
13072 /* find out what's out there already */
13073 ret
= i40e_fetch_switch_configuration(pf
, false);
13075 dev_info(&pf
->pdev
->dev
,
13076 "couldn't fetch switch config, err %s aq_err %s\n",
13077 i40e_stat_str(&pf
->hw
, ret
),
13078 i40e_aq_str(&pf
->hw
, pf
->hw
.aq
.asq_last_status
));
13081 i40e_pf_reset_stats(pf
);
13083 /* set the switch config bit for the whole device to
13084 * support limited promisc or true promisc
13085 * when user requests promisc. The default is limited
13089 if ((pf
->hw
.pf_id
== 0) &&
13090 !(pf
->flags
& I40E_FLAG_TRUE_PROMISC_SUPPORT
)) {
13091 flags
= I40E_AQ_SET_SWITCH_CFG_PROMISC
;
13092 pf
->last_sw_conf_flags
= flags
;
13095 if (pf
->hw
.pf_id
== 0) {
13098 valid_flags
= I40E_AQ_SET_SWITCH_CFG_PROMISC
;
13099 ret
= i40e_aq_set_switch_config(&pf
->hw
, flags
, valid_flags
, 0,
13101 if (ret
&& pf
->hw
.aq
.asq_last_status
!= I40E_AQ_RC_ESRCH
) {
13102 dev_info(&pf
->pdev
->dev
,
13103 "couldn't set switch config bits, err %s aq_err %s\n",
13104 i40e_stat_str(&pf
->hw
, ret
),
13105 i40e_aq_str(&pf
->hw
,
13106 pf
->hw
.aq
.asq_last_status
));
13107 /* not a fatal problem, just keep going */
13109 pf
->last_sw_conf_valid_flags
= valid_flags
;
13112 /* first time setup */
13113 if (pf
->lan_vsi
== I40E_NO_VSI
|| reinit
) {
13114 struct i40e_vsi
*vsi
= NULL
;
13117 /* Set up the PF VSI associated with the PF's main VSI
13118 * that is already in the HW switch
13120 if (pf
->lan_veb
!= I40E_NO_VEB
&& pf
->veb
[pf
->lan_veb
])
13121 uplink_seid
= pf
->veb
[pf
->lan_veb
]->seid
;
13123 uplink_seid
= pf
->mac_seid
;
13124 if (pf
->lan_vsi
== I40E_NO_VSI
)
13125 vsi
= i40e_vsi_setup(pf
, I40E_VSI_MAIN
, uplink_seid
, 0);
13127 vsi
= i40e_vsi_reinit_setup(pf
->vsi
[pf
->lan_vsi
]);
13129 dev_info(&pf
->pdev
->dev
, "setup of MAIN VSI failed\n");
13130 i40e_cloud_filter_exit(pf
);
13131 i40e_fdir_teardown(pf
);
13135 /* force a reset of TC and queue layout configurations */
13136 u8 enabled_tc
= pf
->vsi
[pf
->lan_vsi
]->tc_config
.enabled_tc
;
13138 pf
->vsi
[pf
->lan_vsi
]->tc_config
.enabled_tc
= 0;
13139 pf
->vsi
[pf
->lan_vsi
]->seid
= pf
->main_vsi_seid
;
13140 i40e_vsi_config_tc(pf
->vsi
[pf
->lan_vsi
], enabled_tc
);
13142 i40e_vlan_stripping_disable(pf
->vsi
[pf
->lan_vsi
]);
13144 i40e_fdir_sb_setup(pf
);
13146 /* Setup static PF queue filter control settings */
13147 ret
= i40e_setup_pf_filter_control(pf
);
13149 dev_info(&pf
->pdev
->dev
, "setup_pf_filter_control failed: %d\n",
13151 /* Failure here should not stop continuing other steps */
13154 /* enable RSS in the HW, even for only one queue, as the stack can use
13157 if ((pf
->flags
& I40E_FLAG_RSS_ENABLED
))
13158 i40e_pf_config_rss(pf
);
13160 /* fill in link information and enable LSE reporting */
13161 i40e_link_event(pf
);
13163 /* Initialize user-specific link properties */
13164 pf
->fc_autoneg_status
= ((pf
->hw
.phy
.link_info
.an_info
&
13165 I40E_AQ_AN_COMPLETED
) ? true : false);
13169 /* repopulate tunnel port filters */
13170 i40e_sync_udp_filters(pf
);
13176 * i40e_determine_queue_usage - Work out queue distribution
13177 * @pf: board private structure
13179 static void i40e_determine_queue_usage(struct i40e_pf
*pf
)
13184 pf
->num_lan_qps
= 0;
13186 /* Find the max queues to be put into basic use. We'll always be
13187 * using TC0, whether or not DCB is running, and TC0 will get the
13190 queues_left
= pf
->hw
.func_caps
.num_tx_qp
;
13192 if ((queues_left
== 1) ||
13193 !(pf
->flags
& I40E_FLAG_MSIX_ENABLED
)) {
13194 /* one qp for PF, no queues for anything else */
13196 pf
->alloc_rss_size
= pf
->num_lan_qps
= 1;
13198 /* make sure all the fancies are disabled */
13199 pf
->flags
&= ~(I40E_FLAG_RSS_ENABLED
|
13200 I40E_FLAG_IWARP_ENABLED
|
13201 I40E_FLAG_FD_SB_ENABLED
|
13202 I40E_FLAG_FD_ATR_ENABLED
|
13203 I40E_FLAG_DCB_CAPABLE
|
13204 I40E_FLAG_DCB_ENABLED
|
13205 I40E_FLAG_SRIOV_ENABLED
|
13206 I40E_FLAG_VMDQ_ENABLED
);
13207 pf
->flags
|= I40E_FLAG_FD_SB_INACTIVE
;
13208 } else if (!(pf
->flags
& (I40E_FLAG_RSS_ENABLED
|
13209 I40E_FLAG_FD_SB_ENABLED
|
13210 I40E_FLAG_FD_ATR_ENABLED
|
13211 I40E_FLAG_DCB_CAPABLE
))) {
13212 /* one qp for PF */
13213 pf
->alloc_rss_size
= pf
->num_lan_qps
= 1;
13214 queues_left
-= pf
->num_lan_qps
;
13216 pf
->flags
&= ~(I40E_FLAG_RSS_ENABLED
|
13217 I40E_FLAG_IWARP_ENABLED
|
13218 I40E_FLAG_FD_SB_ENABLED
|
13219 I40E_FLAG_FD_ATR_ENABLED
|
13220 I40E_FLAG_DCB_ENABLED
|
13221 I40E_FLAG_VMDQ_ENABLED
);
13222 pf
->flags
|= I40E_FLAG_FD_SB_INACTIVE
;
13224 /* Not enough queues for all TCs */
13225 if ((pf
->flags
& I40E_FLAG_DCB_CAPABLE
) &&
13226 (queues_left
< I40E_MAX_TRAFFIC_CLASS
)) {
13227 pf
->flags
&= ~(I40E_FLAG_DCB_CAPABLE
|
13228 I40E_FLAG_DCB_ENABLED
);
13229 dev_info(&pf
->pdev
->dev
, "not enough queues for DCB. DCB is disabled.\n");
13232 /* limit lan qps to the smaller of qps, cpus or msix */
13233 q_max
= max_t(int, pf
->rss_size_max
, num_online_cpus());
13234 q_max
= min_t(int, q_max
, pf
->hw
.func_caps
.num_tx_qp
);
13235 q_max
= min_t(int, q_max
, pf
->hw
.func_caps
.num_msix_vectors
);
13236 pf
->num_lan_qps
= q_max
;
13238 queues_left
-= pf
->num_lan_qps
;
13241 if (pf
->flags
& I40E_FLAG_FD_SB_ENABLED
) {
13242 if (queues_left
> 1) {
13243 queues_left
-= 1; /* save 1 queue for FD */
13245 pf
->flags
&= ~I40E_FLAG_FD_SB_ENABLED
;
13246 pf
->flags
|= I40E_FLAG_FD_SB_INACTIVE
;
13247 dev_info(&pf
->pdev
->dev
, "not enough queues for Flow Director. Flow Director feature is disabled\n");
13251 if ((pf
->flags
& I40E_FLAG_SRIOV_ENABLED
) &&
13252 pf
->num_vf_qps
&& pf
->num_req_vfs
&& queues_left
) {
13253 pf
->num_req_vfs
= min_t(int, pf
->num_req_vfs
,
13254 (queues_left
/ pf
->num_vf_qps
));
13255 queues_left
-= (pf
->num_req_vfs
* pf
->num_vf_qps
);
13258 if ((pf
->flags
& I40E_FLAG_VMDQ_ENABLED
) &&
13259 pf
->num_vmdq_vsis
&& pf
->num_vmdq_qps
&& queues_left
) {
13260 pf
->num_vmdq_vsis
= min_t(int, pf
->num_vmdq_vsis
,
13261 (queues_left
/ pf
->num_vmdq_qps
));
13262 queues_left
-= (pf
->num_vmdq_vsis
* pf
->num_vmdq_qps
);
13265 pf
->queues_left
= queues_left
;
13266 dev_dbg(&pf
->pdev
->dev
,
13267 "qs_avail=%d FD SB=%d lan_qs=%d lan_tc0=%d vf=%d*%d vmdq=%d*%d, remaining=%d\n",
13268 pf
->hw
.func_caps
.num_tx_qp
,
13269 !!(pf
->flags
& I40E_FLAG_FD_SB_ENABLED
),
13270 pf
->num_lan_qps
, pf
->alloc_rss_size
, pf
->num_req_vfs
,
13271 pf
->num_vf_qps
, pf
->num_vmdq_vsis
, pf
->num_vmdq_qps
,
13276 * i40e_setup_pf_filter_control - Setup PF static filter control
13277 * @pf: PF to be setup
13279 * i40e_setup_pf_filter_control sets up a PF's initial filter control
13280 * settings. If PE/FCoE are enabled then it will also set the per PF
13281 * based filter sizes required for them. It also enables Flow director,
13282 * ethertype and macvlan type filter settings for the pf.
13284 * Returns 0 on success, negative on failure
13286 static int i40e_setup_pf_filter_control(struct i40e_pf
*pf
)
13288 struct i40e_filter_control_settings
*settings
= &pf
->filter_settings
;
13290 settings
->hash_lut_size
= I40E_HASH_LUT_SIZE_128
;
13292 /* Flow Director is enabled */
13293 if (pf
->flags
& (I40E_FLAG_FD_SB_ENABLED
| I40E_FLAG_FD_ATR_ENABLED
))
13294 settings
->enable_fdir
= true;
13296 /* Ethtype and MACVLAN filters enabled for PF */
13297 settings
->enable_ethtype
= true;
13298 settings
->enable_macvlan
= true;
13300 if (i40e_set_filter_control(&pf
->hw
, settings
))
13306 #define INFO_STRING_LEN 255
13307 #define REMAIN(__x) (INFO_STRING_LEN - (__x))
13308 static void i40e_print_features(struct i40e_pf
*pf
)
13310 struct i40e_hw
*hw
= &pf
->hw
;
13314 buf
= kmalloc(INFO_STRING_LEN
, GFP_KERNEL
);
13318 i
= snprintf(buf
, INFO_STRING_LEN
, "Features: PF-id[%d]", hw
->pf_id
);
13319 #ifdef CONFIG_PCI_IOV
13320 i
+= snprintf(&buf
[i
], REMAIN(i
), " VFs: %d", pf
->num_req_vfs
);
13322 i
+= snprintf(&buf
[i
], REMAIN(i
), " VSIs: %d QP: %d",
13323 pf
->hw
.func_caps
.num_vsis
,
13324 pf
->vsi
[pf
->lan_vsi
]->num_queue_pairs
);
13325 if (pf
->flags
& I40E_FLAG_RSS_ENABLED
)
13326 i
+= snprintf(&buf
[i
], REMAIN(i
), " RSS");
13327 if (pf
->flags
& I40E_FLAG_FD_ATR_ENABLED
)
13328 i
+= snprintf(&buf
[i
], REMAIN(i
), " FD_ATR");
13329 if (pf
->flags
& I40E_FLAG_FD_SB_ENABLED
) {
13330 i
+= snprintf(&buf
[i
], REMAIN(i
), " FD_SB");
13331 i
+= snprintf(&buf
[i
], REMAIN(i
), " NTUPLE");
13333 if (pf
->flags
& I40E_FLAG_DCB_CAPABLE
)
13334 i
+= snprintf(&buf
[i
], REMAIN(i
), " DCB");
13335 i
+= snprintf(&buf
[i
], REMAIN(i
), " VxLAN");
13336 i
+= snprintf(&buf
[i
], REMAIN(i
), " Geneve");
13337 if (pf
->flags
& I40E_FLAG_PTP
)
13338 i
+= snprintf(&buf
[i
], REMAIN(i
), " PTP");
13339 if (pf
->flags
& I40E_FLAG_VEB_MODE_ENABLED
)
13340 i
+= snprintf(&buf
[i
], REMAIN(i
), " VEB");
13342 i
+= snprintf(&buf
[i
], REMAIN(i
), " VEPA");
13344 dev_info(&pf
->pdev
->dev
, "%s\n", buf
);
13346 WARN_ON(i
> INFO_STRING_LEN
);
13350 * i40e_get_platform_mac_addr - get platform-specific MAC address
13351 * @pdev: PCI device information struct
13352 * @pf: board private structure
13354 * Look up the MAC address for the device. First we'll try
13355 * eth_platform_get_mac_address, which will check Open Firmware, or arch
13356 * specific fallback. Otherwise, we'll default to the stored value in
13359 static void i40e_get_platform_mac_addr(struct pci_dev
*pdev
, struct i40e_pf
*pf
)
13361 if (eth_platform_get_mac_address(&pdev
->dev
, pf
->hw
.mac
.addr
))
13362 i40e_get_mac_addr(&pf
->hw
, pf
->hw
.mac
.addr
);
13366 * i40e_probe - Device initialization routine
13367 * @pdev: PCI device information struct
13368 * @ent: entry in i40e_pci_tbl
13370 * i40e_probe initializes a PF identified by a pci_dev structure.
13371 * The OS initialization, configuring of the PF private structure,
13372 * and a hardware reset occur.
13374 * Returns 0 on success, negative on failure
13376 static int i40e_probe(struct pci_dev
*pdev
, const struct pci_device_id
*ent
)
13378 struct i40e_aq_get_phy_abilities_resp abilities
;
13379 struct i40e_pf
*pf
;
13380 struct i40e_hw
*hw
;
13381 static u16 pfs_found
;
13389 err
= pci_enable_device_mem(pdev
);
13393 /* set up for high or low dma */
13394 err
= dma_set_mask_and_coherent(&pdev
->dev
, DMA_BIT_MASK(64));
13396 err
= dma_set_mask_and_coherent(&pdev
->dev
, DMA_BIT_MASK(32));
13398 dev_err(&pdev
->dev
,
13399 "DMA configuration failed: 0x%x\n", err
);
13404 /* set up pci connections */
13405 err
= pci_request_mem_regions(pdev
, i40e_driver_name
);
13407 dev_info(&pdev
->dev
,
13408 "pci_request_selected_regions failed %d\n", err
);
13412 pci_enable_pcie_error_reporting(pdev
);
13413 pci_set_master(pdev
);
13415 /* Now that we have a PCI connection, we need to do the
13416 * low level device setup. This is primarily setting up
13417 * the Admin Queue structures and then querying for the
13418 * device's current profile information.
13420 pf
= kzalloc(sizeof(*pf
), GFP_KERNEL
);
13427 set_bit(__I40E_DOWN
, pf
->state
);
13432 pf
->ioremap_len
= min_t(int, pci_resource_len(pdev
, 0),
13433 I40E_MAX_CSR_SPACE
);
13435 hw
->hw_addr
= ioremap(pci_resource_start(pdev
, 0), pf
->ioremap_len
);
13436 if (!hw
->hw_addr
) {
13438 dev_info(&pdev
->dev
, "ioremap(0x%04x, 0x%04x) failed: 0x%x\n",
13439 (unsigned int)pci_resource_start(pdev
, 0),
13440 pf
->ioremap_len
, err
);
13443 hw
->vendor_id
= pdev
->vendor
;
13444 hw
->device_id
= pdev
->device
;
13445 pci_read_config_byte(pdev
, PCI_REVISION_ID
, &hw
->revision_id
);
13446 hw
->subsystem_vendor_id
= pdev
->subsystem_vendor
;
13447 hw
->subsystem_device_id
= pdev
->subsystem_device
;
13448 hw
->bus
.device
= PCI_SLOT(pdev
->devfn
);
13449 hw
->bus
.func
= PCI_FUNC(pdev
->devfn
);
13450 hw
->bus
.bus_id
= pdev
->bus
->number
;
13451 pf
->instance
= pfs_found
;
13453 /* Select something other than the 802.1ad ethertype for the
13454 * switch to use internally and drop on ingress.
13456 hw
->switch_tag
= 0xffff;
13457 hw
->first_tag
= ETH_P_8021AD
;
13458 hw
->second_tag
= ETH_P_8021Q
;
13460 INIT_LIST_HEAD(&pf
->l3_flex_pit_list
);
13461 INIT_LIST_HEAD(&pf
->l4_flex_pit_list
);
13463 /* set up the locks for the AQ, do this only once in probe
13464 * and destroy them only once in remove
13466 mutex_init(&hw
->aq
.asq_mutex
);
13467 mutex_init(&hw
->aq
.arq_mutex
);
13469 pf
->msg_enable
= netif_msg_init(debug
,
13474 pf
->hw
.debug_mask
= debug
;
13476 /* do a special CORER for clearing PXE mode once at init */
13477 if (hw
->revision_id
== 0 &&
13478 (rd32(hw
, I40E_GLLAN_RCTL_0
) & I40E_GLLAN_RCTL_0_PXE_MODE_MASK
)) {
13479 wr32(hw
, I40E_GLGEN_RTRIG
, I40E_GLGEN_RTRIG_CORER_MASK
);
13484 i40e_clear_pxe_mode(hw
);
13487 /* Reset here to make sure all is clean and to define PF 'n' */
13489 err
= i40e_pf_reset(hw
);
13491 dev_info(&pdev
->dev
, "Initial pf_reset failed: %d\n", err
);
13496 hw
->aq
.num_arq_entries
= I40E_AQ_LEN
;
13497 hw
->aq
.num_asq_entries
= I40E_AQ_LEN
;
13498 hw
->aq
.arq_buf_size
= I40E_MAX_AQ_BUF_SIZE
;
13499 hw
->aq
.asq_buf_size
= I40E_MAX_AQ_BUF_SIZE
;
13500 pf
->adminq_work_limit
= I40E_AQ_WORK_LIMIT
;
13502 snprintf(pf
->int_name
, sizeof(pf
->int_name
) - 1,
13504 dev_driver_string(&pf
->pdev
->dev
), dev_name(&pdev
->dev
));
13506 err
= i40e_init_shared_code(hw
);
13508 dev_warn(&pdev
->dev
, "unidentified MAC or BLANK NVM: %d\n",
13513 /* set up a default setting for link flow control */
13514 pf
->hw
.fc
.requested_mode
= I40E_FC_NONE
;
13516 err
= i40e_init_adminq(hw
);
13518 if (err
== I40E_ERR_FIRMWARE_API_VERSION
)
13519 dev_info(&pdev
->dev
,
13520 "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");
13522 dev_info(&pdev
->dev
,
13523 "The driver for the device stopped because the device firmware failed to init. Try updating your NVM image.\n");
13527 i40e_get_oem_version(hw
);
13529 /* provide nvm, fw, api versions */
13530 dev_info(&pdev
->dev
, "fw %d.%d.%05d api %d.%d nvm %s\n",
13531 hw
->aq
.fw_maj_ver
, hw
->aq
.fw_min_ver
, hw
->aq
.fw_build
,
13532 hw
->aq
.api_maj_ver
, hw
->aq
.api_min_ver
,
13533 i40e_nvm_version_str(hw
));
13535 if (hw
->aq
.api_maj_ver
== I40E_FW_API_VERSION_MAJOR
&&
13536 hw
->aq
.api_min_ver
> I40E_FW_MINOR_VERSION(hw
))
13537 dev_info(&pdev
->dev
,
13538 "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");
13539 else if (hw
->aq
.api_maj_ver
== 1 && hw
->aq
.api_min_ver
< 4)
13540 dev_info(&pdev
->dev
,
13541 "The driver for the device detected an older version of the NVM image than expected. Please update the NVM image.\n");
13543 i40e_verify_eeprom(pf
);
13545 /* Rev 0 hardware was never productized */
13546 if (hw
->revision_id
< 1)
13547 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");
13549 i40e_clear_pxe_mode(hw
);
13550 err
= i40e_get_capabilities(pf
, i40e_aqc_opc_list_func_capabilities
);
13552 goto err_adminq_setup
;
13554 err
= i40e_sw_init(pf
);
13556 dev_info(&pdev
->dev
, "sw_init failed: %d\n", err
);
13560 err
= i40e_init_lan_hmc(hw
, hw
->func_caps
.num_tx_qp
,
13561 hw
->func_caps
.num_rx_qp
, 0, 0);
13563 dev_info(&pdev
->dev
, "init_lan_hmc failed: %d\n", err
);
13564 goto err_init_lan_hmc
;
13567 err
= i40e_configure_lan_hmc(hw
, I40E_HMC_MODEL_DIRECT_ONLY
);
13569 dev_info(&pdev
->dev
, "configure_lan_hmc failed: %d\n", err
);
13571 goto err_configure_lan_hmc
;
13574 /* Disable LLDP for NICs that have firmware versions lower than v4.3.
13575 * Ignore error return codes because if it was already disabled via
13576 * hardware settings this will fail
13578 if (pf
->hw_features
& I40E_HW_STOP_FW_LLDP
) {
13579 dev_info(&pdev
->dev
, "Stopping firmware LLDP agent.\n");
13580 i40e_aq_stop_lldp(hw
, true, NULL
);
13583 /* allow a platform config to override the HW addr */
13584 i40e_get_platform_mac_addr(pdev
, pf
);
13586 if (!is_valid_ether_addr(hw
->mac
.addr
)) {
13587 dev_info(&pdev
->dev
, "invalid MAC address %pM\n", hw
->mac
.addr
);
13591 dev_info(&pdev
->dev
, "MAC address: %pM\n", hw
->mac
.addr
);
13592 ether_addr_copy(hw
->mac
.perm_addr
, hw
->mac
.addr
);
13593 i40e_get_port_mac_addr(hw
, hw
->mac
.port_addr
);
13594 if (is_valid_ether_addr(hw
->mac
.port_addr
))
13595 pf
->hw_features
|= I40E_HW_PORT_ID_VALID
;
13597 pci_set_drvdata(pdev
, pf
);
13598 pci_save_state(pdev
);
13599 #ifdef CONFIG_I40E_DCB
13600 err
= i40e_init_pf_dcb(pf
);
13602 dev_info(&pdev
->dev
, "DCB init failed %d, disabled\n", err
);
13603 pf
->flags
&= ~(I40E_FLAG_DCB_CAPABLE
| I40E_FLAG_DCB_ENABLED
);
13604 /* Continue without DCB enabled */
13606 #endif /* CONFIG_I40E_DCB */
13608 /* set up periodic task facility */
13609 timer_setup(&pf
->service_timer
, i40e_service_timer
, 0);
13610 pf
->service_timer_period
= HZ
;
13612 INIT_WORK(&pf
->service_task
, i40e_service_task
);
13613 clear_bit(__I40E_SERVICE_SCHED
, pf
->state
);
13615 /* NVM bit on means WoL disabled for the port */
13616 i40e_read_nvm_word(hw
, I40E_SR_NVM_WAKE_ON_LAN
, &wol_nvm_bits
);
13617 if (BIT (hw
->port
) & wol_nvm_bits
|| hw
->partition_id
!= 1)
13618 pf
->wol_en
= false;
13621 device_set_wakeup_enable(&pf
->pdev
->dev
, pf
->wol_en
);
13623 /* set up the main switch operations */
13624 i40e_determine_queue_usage(pf
);
13625 err
= i40e_init_interrupt_scheme(pf
);
13627 goto err_switch_setup
;
13629 /* The number of VSIs reported by the FW is the minimum guaranteed
13630 * to us; HW supports far more and we share the remaining pool with
13631 * the other PFs. We allocate space for more than the guarantee with
13632 * the understanding that we might not get them all later.
13634 if (pf
->hw
.func_caps
.num_vsis
< I40E_MIN_VSI_ALLOC
)
13635 pf
->num_alloc_vsi
= I40E_MIN_VSI_ALLOC
;
13637 pf
->num_alloc_vsi
= pf
->hw
.func_caps
.num_vsis
;
13639 /* Set up the *vsi struct and our local tracking of the MAIN PF vsi. */
13640 pf
->vsi
= kcalloc(pf
->num_alloc_vsi
, sizeof(struct i40e_vsi
*),
13644 goto err_switch_setup
;
13647 #ifdef CONFIG_PCI_IOV
13648 /* prep for VF support */
13649 if ((pf
->flags
& I40E_FLAG_SRIOV_ENABLED
) &&
13650 (pf
->flags
& I40E_FLAG_MSIX_ENABLED
) &&
13651 !test_bit(__I40E_BAD_EEPROM
, pf
->state
)) {
13652 if (pci_num_vf(pdev
))
13653 pf
->flags
|= I40E_FLAG_VEB_MODE_ENABLED
;
13656 err
= i40e_setup_pf_switch(pf
, false);
13658 dev_info(&pdev
->dev
, "setup_pf_switch failed: %d\n", err
);
13661 INIT_LIST_HEAD(&pf
->vsi
[pf
->lan_vsi
]->ch_list
);
13663 /* Make sure flow control is set according to current settings */
13664 err
= i40e_set_fc(hw
, &set_fc_aq_fail
, true);
13665 if (set_fc_aq_fail
& I40E_SET_FC_AQ_FAIL_GET
)
13666 dev_dbg(&pf
->pdev
->dev
,
13667 "Set fc with err %s aq_err %s on get_phy_cap\n",
13668 i40e_stat_str(hw
, err
),
13669 i40e_aq_str(hw
, hw
->aq
.asq_last_status
));
13670 if (set_fc_aq_fail
& I40E_SET_FC_AQ_FAIL_SET
)
13671 dev_dbg(&pf
->pdev
->dev
,
13672 "Set fc with err %s aq_err %s on set_phy_config\n",
13673 i40e_stat_str(hw
, err
),
13674 i40e_aq_str(hw
, hw
->aq
.asq_last_status
));
13675 if (set_fc_aq_fail
& I40E_SET_FC_AQ_FAIL_UPDATE
)
13676 dev_dbg(&pf
->pdev
->dev
,
13677 "Set fc with err %s aq_err %s on get_link_info\n",
13678 i40e_stat_str(hw
, err
),
13679 i40e_aq_str(hw
, hw
->aq
.asq_last_status
));
13681 /* if FDIR VSI was set up, start it now */
13682 for (i
= 0; i
< pf
->num_alloc_vsi
; i
++) {
13683 if (pf
->vsi
[i
] && pf
->vsi
[i
]->type
== I40E_VSI_FDIR
) {
13684 i40e_vsi_open(pf
->vsi
[i
]);
13689 /* The driver only wants link up/down and module qualification
13690 * reports from firmware. Note the negative logic.
13692 err
= i40e_aq_set_phy_int_mask(&pf
->hw
,
13693 ~(I40E_AQ_EVENT_LINK_UPDOWN
|
13694 I40E_AQ_EVENT_MEDIA_NA
|
13695 I40E_AQ_EVENT_MODULE_QUAL_FAIL
), NULL
);
13697 dev_info(&pf
->pdev
->dev
, "set phy mask fail, err %s aq_err %s\n",
13698 i40e_stat_str(&pf
->hw
, err
),
13699 i40e_aq_str(&pf
->hw
, pf
->hw
.aq
.asq_last_status
));
13701 /* Reconfigure hardware for allowing smaller MSS in the case
13702 * of TSO, so that we avoid the MDD being fired and causing
13703 * a reset in the case of small MSS+TSO.
13705 val
= rd32(hw
, I40E_REG_MSS
);
13706 if ((val
& I40E_REG_MSS_MIN_MASK
) > I40E_64BYTE_MSS
) {
13707 val
&= ~I40E_REG_MSS_MIN_MASK
;
13708 val
|= I40E_64BYTE_MSS
;
13709 wr32(hw
, I40E_REG_MSS
, val
);
13712 if (pf
->hw_features
& I40E_HW_RESTART_AUTONEG
) {
13714 err
= i40e_aq_set_link_restart_an(&pf
->hw
, true, NULL
);
13716 dev_info(&pf
->pdev
->dev
, "link restart failed, err %s aq_err %s\n",
13717 i40e_stat_str(&pf
->hw
, err
),
13718 i40e_aq_str(&pf
->hw
,
13719 pf
->hw
.aq
.asq_last_status
));
13721 /* The main driver is (mostly) up and happy. We need to set this state
13722 * before setting up the misc vector or we get a race and the vector
13723 * ends up disabled forever.
13725 clear_bit(__I40E_DOWN
, pf
->state
);
13727 /* In case of MSIX we are going to setup the misc vector right here
13728 * to handle admin queue events etc. In case of legacy and MSI
13729 * the misc functionality and queue processing is combined in
13730 * the same vector and that gets setup at open.
13732 if (pf
->flags
& I40E_FLAG_MSIX_ENABLED
) {
13733 err
= i40e_setup_misc_vector(pf
);
13735 dev_info(&pdev
->dev
,
13736 "setup of misc vector failed: %d\n", err
);
13741 #ifdef CONFIG_PCI_IOV
13742 /* prep for VF support */
13743 if ((pf
->flags
& I40E_FLAG_SRIOV_ENABLED
) &&
13744 (pf
->flags
& I40E_FLAG_MSIX_ENABLED
) &&
13745 !test_bit(__I40E_BAD_EEPROM
, pf
->state
)) {
13746 /* disable link interrupts for VFs */
13747 val
= rd32(hw
, I40E_PFGEN_PORTMDIO_NUM
);
13748 val
&= ~I40E_PFGEN_PORTMDIO_NUM_VFLINK_STAT_ENA_MASK
;
13749 wr32(hw
, I40E_PFGEN_PORTMDIO_NUM
, val
);
13752 if (pci_num_vf(pdev
)) {
13753 dev_info(&pdev
->dev
,
13754 "Active VFs found, allocating resources.\n");
13755 err
= i40e_alloc_vfs(pf
, pci_num_vf(pdev
));
13757 dev_info(&pdev
->dev
,
13758 "Error %d allocating resources for existing VFs\n",
13762 #endif /* CONFIG_PCI_IOV */
13764 if (pf
->flags
& I40E_FLAG_IWARP_ENABLED
) {
13765 pf
->iwarp_base_vector
= i40e_get_lump(pf
, pf
->irq_pile
,
13766 pf
->num_iwarp_msix
,
13767 I40E_IWARP_IRQ_PILE_ID
);
13768 if (pf
->iwarp_base_vector
< 0) {
13769 dev_info(&pdev
->dev
,
13770 "failed to get tracking for %d vectors for IWARP err=%d\n",
13771 pf
->num_iwarp_msix
, pf
->iwarp_base_vector
);
13772 pf
->flags
&= ~I40E_FLAG_IWARP_ENABLED
;
13776 i40e_dbg_pf_init(pf
);
13778 /* tell the firmware that we're starting */
13779 i40e_send_version(pf
);
13781 /* since everything's happy, start the service_task timer */
13782 mod_timer(&pf
->service_timer
,
13783 round_jiffies(jiffies
+ pf
->service_timer_period
));
13785 /* add this PF to client device list and launch a client service task */
13786 if (pf
->flags
& I40E_FLAG_IWARP_ENABLED
) {
13787 err
= i40e_lan_add_device(pf
);
13789 dev_info(&pdev
->dev
, "Failed to add PF to client API service list: %d\n",
13793 #define PCI_SPEED_SIZE 8
13794 #define PCI_WIDTH_SIZE 8
13795 /* Devices on the IOSF bus do not have this information
13796 * and will report PCI Gen 1 x 1 by default so don't bother
13799 if (!(pf
->hw_features
& I40E_HW_NO_PCI_LINK_CHECK
)) {
13800 char speed
[PCI_SPEED_SIZE
] = "Unknown";
13801 char width
[PCI_WIDTH_SIZE
] = "Unknown";
13803 /* Get the negotiated link width and speed from PCI config
13806 pcie_capability_read_word(pf
->pdev
, PCI_EXP_LNKSTA
,
13809 i40e_set_pci_config_data(hw
, link_status
);
13811 switch (hw
->bus
.speed
) {
13812 case i40e_bus_speed_8000
:
13813 strncpy(speed
, "8.0", PCI_SPEED_SIZE
); break;
13814 case i40e_bus_speed_5000
:
13815 strncpy(speed
, "5.0", PCI_SPEED_SIZE
); break;
13816 case i40e_bus_speed_2500
:
13817 strncpy(speed
, "2.5", PCI_SPEED_SIZE
); break;
13821 switch (hw
->bus
.width
) {
13822 case i40e_bus_width_pcie_x8
:
13823 strncpy(width
, "8", PCI_WIDTH_SIZE
); break;
13824 case i40e_bus_width_pcie_x4
:
13825 strncpy(width
, "4", PCI_WIDTH_SIZE
); break;
13826 case i40e_bus_width_pcie_x2
:
13827 strncpy(width
, "2", PCI_WIDTH_SIZE
); break;
13828 case i40e_bus_width_pcie_x1
:
13829 strncpy(width
, "1", PCI_WIDTH_SIZE
); break;
13834 dev_info(&pdev
->dev
, "PCI-Express: Speed %sGT/s Width x%s\n",
13837 if (hw
->bus
.width
< i40e_bus_width_pcie_x8
||
13838 hw
->bus
.speed
< i40e_bus_speed_8000
) {
13839 dev_warn(&pdev
->dev
, "PCI-Express bandwidth available for this device may be insufficient for optimal performance.\n");
13840 dev_warn(&pdev
->dev
, "Please move the device to a different PCI-e link with more lanes and/or higher transfer rate.\n");
13844 /* get the requested speeds from the fw */
13845 err
= i40e_aq_get_phy_capabilities(hw
, false, false, &abilities
, NULL
);
13847 dev_dbg(&pf
->pdev
->dev
, "get requested speeds ret = %s last_status = %s\n",
13848 i40e_stat_str(&pf
->hw
, err
),
13849 i40e_aq_str(&pf
->hw
, pf
->hw
.aq
.asq_last_status
));
13850 pf
->hw
.phy
.link_info
.requested_speeds
= abilities
.link_speed
;
13852 /* get the supported phy types from the fw */
13853 err
= i40e_aq_get_phy_capabilities(hw
, false, true, &abilities
, NULL
);
13855 dev_dbg(&pf
->pdev
->dev
, "get supported phy types ret = %s last_status = %s\n",
13856 i40e_stat_str(&pf
->hw
, err
),
13857 i40e_aq_str(&pf
->hw
, pf
->hw
.aq
.asq_last_status
));
13859 /* Add a filter to drop all Flow control frames from any VSI from being
13860 * transmitted. By doing so we stop a malicious VF from sending out
13861 * PAUSE or PFC frames and potentially controlling traffic for other
13863 * The FW can still send Flow control frames if enabled.
13865 i40e_add_filter_to_drop_tx_flow_control_frames(&pf
->hw
,
13866 pf
->main_vsi_seid
);
13868 if ((pf
->hw
.device_id
== I40E_DEV_ID_10G_BASE_T
) ||
13869 (pf
->hw
.device_id
== I40E_DEV_ID_10G_BASE_T4
))
13870 pf
->hw_features
|= I40E_HW_PHY_CONTROLS_LEDS
;
13871 if (pf
->hw
.device_id
== I40E_DEV_ID_SFP_I_X722
)
13872 pf
->hw_features
|= I40E_HW_HAVE_CRT_RETIMER
;
13873 /* print a string summarizing features */
13874 i40e_print_features(pf
);
13878 /* Unwind what we've done if something failed in the setup */
13880 set_bit(__I40E_DOWN
, pf
->state
);
13881 i40e_clear_interrupt_scheme(pf
);
13884 i40e_reset_interrupt_capability(pf
);
13885 del_timer_sync(&pf
->service_timer
);
13887 err_configure_lan_hmc
:
13888 (void)i40e_shutdown_lan_hmc(hw
);
13890 kfree(pf
->qp_pile
);
13894 iounmap(hw
->hw_addr
);
13898 pci_disable_pcie_error_reporting(pdev
);
13899 pci_release_mem_regions(pdev
);
13902 pci_disable_device(pdev
);
13907 * i40e_remove - Device removal routine
13908 * @pdev: PCI device information struct
13910 * i40e_remove is called by the PCI subsystem to alert the driver
13911 * that is should release a PCI device. This could be caused by a
13912 * Hot-Plug event, or because the driver is going to be removed from
13915 static void i40e_remove(struct pci_dev
*pdev
)
13917 struct i40e_pf
*pf
= pci_get_drvdata(pdev
);
13918 struct i40e_hw
*hw
= &pf
->hw
;
13919 i40e_status ret_code
;
13922 i40e_dbg_pf_exit(pf
);
13926 /* Disable RSS in hw */
13927 i40e_write_rx_ctl(hw
, I40E_PFQF_HENA(0), 0);
13928 i40e_write_rx_ctl(hw
, I40E_PFQF_HENA(1), 0);
13930 /* no more scheduling of any task */
13931 set_bit(__I40E_SUSPENDED
, pf
->state
);
13932 set_bit(__I40E_DOWN
, pf
->state
);
13933 if (pf
->service_timer
.function
)
13934 del_timer_sync(&pf
->service_timer
);
13935 if (pf
->service_task
.func
)
13936 cancel_work_sync(&pf
->service_task
);
13938 /* Client close must be called explicitly here because the timer
13939 * has been stopped.
13941 i40e_notify_client_of_netdev_close(pf
->vsi
[pf
->lan_vsi
], false);
13943 if (pf
->flags
& I40E_FLAG_SRIOV_ENABLED
) {
13945 pf
->flags
&= ~I40E_FLAG_SRIOV_ENABLED
;
13948 i40e_fdir_teardown(pf
);
13950 /* If there is a switch structure or any orphans, remove them.
13951 * This will leave only the PF's VSI remaining.
13953 for (i
= 0; i
< I40E_MAX_VEB
; i
++) {
13957 if (pf
->veb
[i
]->uplink_seid
== pf
->mac_seid
||
13958 pf
->veb
[i
]->uplink_seid
== 0)
13959 i40e_switch_branch_release(pf
->veb
[i
]);
13962 /* Now we can shutdown the PF's VSI, just before we kill
13965 if (pf
->vsi
[pf
->lan_vsi
])
13966 i40e_vsi_release(pf
->vsi
[pf
->lan_vsi
]);
13968 i40e_cloud_filter_exit(pf
);
13970 /* remove attached clients */
13971 if (pf
->flags
& I40E_FLAG_IWARP_ENABLED
) {
13972 ret_code
= i40e_lan_del_device(pf
);
13974 dev_warn(&pdev
->dev
, "Failed to delete client device: %d\n",
13978 /* shutdown and destroy the HMC */
13979 if (hw
->hmc
.hmc_obj
) {
13980 ret_code
= i40e_shutdown_lan_hmc(hw
);
13982 dev_warn(&pdev
->dev
,
13983 "Failed to destroy the HMC resources: %d\n",
13987 /* shutdown the adminq */
13988 i40e_shutdown_adminq(hw
);
13990 /* destroy the locks only once, here */
13991 mutex_destroy(&hw
->aq
.arq_mutex
);
13992 mutex_destroy(&hw
->aq
.asq_mutex
);
13994 /* Clear all dynamic memory lists of rings, q_vectors, and VSIs */
13995 i40e_clear_interrupt_scheme(pf
);
13996 for (i
= 0; i
< pf
->num_alloc_vsi
; i
++) {
13998 i40e_vsi_clear_rings(pf
->vsi
[i
]);
13999 i40e_vsi_clear(pf
->vsi
[i
]);
14004 for (i
= 0; i
< I40E_MAX_VEB
; i
++) {
14009 kfree(pf
->qp_pile
);
14012 iounmap(hw
->hw_addr
);
14014 pci_release_mem_regions(pdev
);
14016 pci_disable_pcie_error_reporting(pdev
);
14017 pci_disable_device(pdev
);
14021 * i40e_pci_error_detected - warning that something funky happened in PCI land
14022 * @pdev: PCI device information struct
14024 * Called to warn that something happened and the error handling steps
14025 * are in progress. Allows the driver to quiesce things, be ready for
14028 static pci_ers_result_t
i40e_pci_error_detected(struct pci_dev
*pdev
,
14029 enum pci_channel_state error
)
14031 struct i40e_pf
*pf
= pci_get_drvdata(pdev
);
14033 dev_info(&pdev
->dev
, "%s: error %d\n", __func__
, error
);
14036 dev_info(&pdev
->dev
,
14037 "Cannot recover - error happened during device probe\n");
14038 return PCI_ERS_RESULT_DISCONNECT
;
14041 /* shutdown all operations */
14042 if (!test_bit(__I40E_SUSPENDED
, pf
->state
))
14043 i40e_prep_for_reset(pf
, false);
14045 /* Request a slot reset */
14046 return PCI_ERS_RESULT_NEED_RESET
;
14050 * i40e_pci_error_slot_reset - a PCI slot reset just happened
14051 * @pdev: PCI device information struct
14053 * Called to find if the driver can work with the device now that
14054 * the pci slot has been reset. If a basic connection seems good
14055 * (registers are readable and have sane content) then return a
14056 * happy little PCI_ERS_RESULT_xxx.
14058 static pci_ers_result_t
i40e_pci_error_slot_reset(struct pci_dev
*pdev
)
14060 struct i40e_pf
*pf
= pci_get_drvdata(pdev
);
14061 pci_ers_result_t result
;
14065 dev_dbg(&pdev
->dev
, "%s\n", __func__
);
14066 if (pci_enable_device_mem(pdev
)) {
14067 dev_info(&pdev
->dev
,
14068 "Cannot re-enable PCI device after reset.\n");
14069 result
= PCI_ERS_RESULT_DISCONNECT
;
14071 pci_set_master(pdev
);
14072 pci_restore_state(pdev
);
14073 pci_save_state(pdev
);
14074 pci_wake_from_d3(pdev
, false);
14076 reg
= rd32(&pf
->hw
, I40E_GLGEN_RTRIG
);
14078 result
= PCI_ERS_RESULT_RECOVERED
;
14080 result
= PCI_ERS_RESULT_DISCONNECT
;
14083 err
= pci_cleanup_aer_uncorrect_error_status(pdev
);
14085 dev_info(&pdev
->dev
,
14086 "pci_cleanup_aer_uncorrect_error_status failed 0x%0x\n",
14088 /* non-fatal, continue */
14095 * i40e_pci_error_reset_prepare - prepare device driver for pci reset
14096 * @pdev: PCI device information struct
14098 static void i40e_pci_error_reset_prepare(struct pci_dev
*pdev
)
14100 struct i40e_pf
*pf
= pci_get_drvdata(pdev
);
14102 i40e_prep_for_reset(pf
, false);
14106 * i40e_pci_error_reset_done - pci reset done, device driver reset can begin
14107 * @pdev: PCI device information struct
14109 static void i40e_pci_error_reset_done(struct pci_dev
*pdev
)
14111 struct i40e_pf
*pf
= pci_get_drvdata(pdev
);
14113 i40e_reset_and_rebuild(pf
, false, false);
14117 * i40e_pci_error_resume - restart operations after PCI error recovery
14118 * @pdev: PCI device information struct
14120 * Called to allow the driver to bring things back up after PCI error
14121 * and/or reset recovery has finished.
14123 static void i40e_pci_error_resume(struct pci_dev
*pdev
)
14125 struct i40e_pf
*pf
= pci_get_drvdata(pdev
);
14127 dev_dbg(&pdev
->dev
, "%s\n", __func__
);
14128 if (test_bit(__I40E_SUSPENDED
, pf
->state
))
14131 i40e_handle_reset_warning(pf
, false);
14135 * i40e_enable_mc_magic_wake - enable multicast magic packet wake up
14136 * using the mac_address_write admin q function
14137 * @pf: pointer to i40e_pf struct
14139 static void i40e_enable_mc_magic_wake(struct i40e_pf
*pf
)
14141 struct i40e_hw
*hw
= &pf
->hw
;
14146 /* Get current MAC address in case it's an LAA */
14147 if (pf
->vsi
[pf
->lan_vsi
] && pf
->vsi
[pf
->lan_vsi
]->netdev
) {
14148 ether_addr_copy(mac_addr
,
14149 pf
->vsi
[pf
->lan_vsi
]->netdev
->dev_addr
);
14151 dev_err(&pf
->pdev
->dev
,
14152 "Failed to retrieve MAC address; using default\n");
14153 ether_addr_copy(mac_addr
, hw
->mac
.addr
);
14156 /* The FW expects the mac address write cmd to first be called with
14157 * one of these flags before calling it again with the multicast
14160 flags
= I40E_AQC_WRITE_TYPE_LAA_WOL
;
14162 if (hw
->func_caps
.flex10_enable
&& hw
->partition_id
!= 1)
14163 flags
= I40E_AQC_WRITE_TYPE_LAA_ONLY
;
14165 ret
= i40e_aq_mac_address_write(hw
, flags
, mac_addr
, NULL
);
14167 dev_err(&pf
->pdev
->dev
,
14168 "Failed to update MAC address registers; cannot enable Multicast Magic packet wake up");
14172 flags
= I40E_AQC_MC_MAG_EN
14173 | I40E_AQC_WOL_PRESERVE_ON_PFR
14174 | I40E_AQC_WRITE_TYPE_UPDATE_MC_MAG
;
14175 ret
= i40e_aq_mac_address_write(hw
, flags
, mac_addr
, NULL
);
14177 dev_err(&pf
->pdev
->dev
,
14178 "Failed to enable Multicast Magic Packet wake up\n");
14182 * i40e_shutdown - PCI callback for shutting down
14183 * @pdev: PCI device information struct
14185 static void i40e_shutdown(struct pci_dev
*pdev
)
14187 struct i40e_pf
*pf
= pci_get_drvdata(pdev
);
14188 struct i40e_hw
*hw
= &pf
->hw
;
14190 set_bit(__I40E_SUSPENDED
, pf
->state
);
14191 set_bit(__I40E_DOWN
, pf
->state
);
14193 i40e_prep_for_reset(pf
, true);
14196 wr32(hw
, I40E_PFPM_APM
, (pf
->wol_en
? I40E_PFPM_APM_APME_MASK
: 0));
14197 wr32(hw
, I40E_PFPM_WUFC
, (pf
->wol_en
? I40E_PFPM_WUFC_MAG_MASK
: 0));
14199 del_timer_sync(&pf
->service_timer
);
14200 cancel_work_sync(&pf
->service_task
);
14201 i40e_cloud_filter_exit(pf
);
14202 i40e_fdir_teardown(pf
);
14204 /* Client close must be called explicitly here because the timer
14205 * has been stopped.
14207 i40e_notify_client_of_netdev_close(pf
->vsi
[pf
->lan_vsi
], false);
14209 if (pf
->wol_en
&& (pf
->hw_features
& I40E_HW_WOL_MC_MAGIC_PKT_WAKE
))
14210 i40e_enable_mc_magic_wake(pf
);
14212 i40e_prep_for_reset(pf
, false);
14214 wr32(hw
, I40E_PFPM_APM
,
14215 (pf
->wol_en
? I40E_PFPM_APM_APME_MASK
: 0));
14216 wr32(hw
, I40E_PFPM_WUFC
,
14217 (pf
->wol_en
? I40E_PFPM_WUFC_MAG_MASK
: 0));
14219 i40e_clear_interrupt_scheme(pf
);
14221 if (system_state
== SYSTEM_POWER_OFF
) {
14222 pci_wake_from_d3(pdev
, pf
->wol_en
);
14223 pci_set_power_state(pdev
, PCI_D3hot
);
14228 * i40e_suspend - PM callback for moving to D3
14229 * @dev: generic device information structure
14231 static int __maybe_unused
i40e_suspend(struct device
*dev
)
14233 struct pci_dev
*pdev
= to_pci_dev(dev
);
14234 struct i40e_pf
*pf
= pci_get_drvdata(pdev
);
14235 struct i40e_hw
*hw
= &pf
->hw
;
14237 /* If we're already suspended, then there is nothing to do */
14238 if (test_and_set_bit(__I40E_SUSPENDED
, pf
->state
))
14241 set_bit(__I40E_DOWN
, pf
->state
);
14243 /* Ensure service task will not be running */
14244 del_timer_sync(&pf
->service_timer
);
14245 cancel_work_sync(&pf
->service_task
);
14247 if (pf
->wol_en
&& (pf
->hw_features
& I40E_HW_WOL_MC_MAGIC_PKT_WAKE
))
14248 i40e_enable_mc_magic_wake(pf
);
14250 i40e_prep_for_reset(pf
, false);
14252 wr32(hw
, I40E_PFPM_APM
, (pf
->wol_en
? I40E_PFPM_APM_APME_MASK
: 0));
14253 wr32(hw
, I40E_PFPM_WUFC
, (pf
->wol_en
? I40E_PFPM_WUFC_MAG_MASK
: 0));
14255 /* Clear the interrupt scheme and release our IRQs so that the system
14256 * can safely hibernate even when there are a large number of CPUs.
14257 * Otherwise hibernation might fail when mapping all the vectors back
14260 i40e_clear_interrupt_scheme(pf
);
14266 * i40e_resume - PM callback for waking up from D3
14267 * @dev: generic device information structure
14269 static int __maybe_unused
i40e_resume(struct device
*dev
)
14271 struct pci_dev
*pdev
= to_pci_dev(dev
);
14272 struct i40e_pf
*pf
= pci_get_drvdata(pdev
);
14275 /* If we're not suspended, then there is nothing to do */
14276 if (!test_bit(__I40E_SUSPENDED
, pf
->state
))
14279 /* We cleared the interrupt scheme when we suspended, so we need to
14280 * restore it now to resume device functionality.
14282 err
= i40e_restore_interrupt_scheme(pf
);
14284 dev_err(&pdev
->dev
, "Cannot restore interrupt scheme: %d\n",
14288 clear_bit(__I40E_DOWN
, pf
->state
);
14289 i40e_reset_and_rebuild(pf
, false, false);
14291 /* Clear suspended state last after everything is recovered */
14292 clear_bit(__I40E_SUSPENDED
, pf
->state
);
14294 /* Restart the service task */
14295 mod_timer(&pf
->service_timer
,
14296 round_jiffies(jiffies
+ pf
->service_timer_period
));
14301 static const struct pci_error_handlers i40e_err_handler
= {
14302 .error_detected
= i40e_pci_error_detected
,
14303 .slot_reset
= i40e_pci_error_slot_reset
,
14304 .reset_prepare
= i40e_pci_error_reset_prepare
,
14305 .reset_done
= i40e_pci_error_reset_done
,
14306 .resume
= i40e_pci_error_resume
,
14309 static SIMPLE_DEV_PM_OPS(i40e_pm_ops
, i40e_suspend
, i40e_resume
);
14311 static struct pci_driver i40e_driver
= {
14312 .name
= i40e_driver_name
,
14313 .id_table
= i40e_pci_tbl
,
14314 .probe
= i40e_probe
,
14315 .remove
= i40e_remove
,
14317 .pm
= &i40e_pm_ops
,
14319 .shutdown
= i40e_shutdown
,
14320 .err_handler
= &i40e_err_handler
,
14321 .sriov_configure
= i40e_pci_sriov_configure
,
14325 * i40e_init_module - Driver registration routine
14327 * i40e_init_module is the first routine called when the driver is
14328 * loaded. All it does is register with the PCI subsystem.
14330 static int __init
i40e_init_module(void)
14332 pr_info("%s: %s - version %s\n", i40e_driver_name
,
14333 i40e_driver_string
, i40e_driver_version_str
);
14334 pr_info("%s: %s\n", i40e_driver_name
, i40e_copyright
);
14336 /* There is no need to throttle the number of active tasks because
14337 * each device limits its own task using a state bit for scheduling
14338 * the service task, and the device tasks do not interfere with each
14339 * other, so we don't set a max task limit. We must set WQ_MEM_RECLAIM
14340 * since we need to be able to guarantee forward progress even under
14343 i40e_wq
= alloc_workqueue("%s", WQ_MEM_RECLAIM
, 0, i40e_driver_name
);
14345 pr_err("%s: Failed to create workqueue\n", i40e_driver_name
);
14350 return pci_register_driver(&i40e_driver
);
14352 module_init(i40e_init_module
);
14355 * i40e_exit_module - Driver exit cleanup routine
14357 * i40e_exit_module is called just before the driver is removed
14360 static void __exit
i40e_exit_module(void)
14362 pci_unregister_driver(&i40e_driver
);
14363 destroy_workqueue(i40e_wq
);
14366 module_exit(i40e_exit_module
);