1 /*******************************************************************************
3 * Intel Ethernet Controller XL710 Family Linux Driver
4 * Copyright(c) 2013 - 2015 Intel Corporation.
6 * This program is free software; you can redistribute it and/or modify it
7 * under the terms and conditions of the GNU General Public License,
8 * version 2, as published by the Free Software Foundation.
10 * This program is distributed in the hope it will be useful, but WITHOUT
11 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
12 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
15 * You should have received a copy of the GNU General Public License along
16 * with this program. If not, see <http://www.gnu.org/licenses/>.
18 * The full GNU General Public License is included in this distribution in
19 * the file called "COPYING".
21 * Contact Information:
22 * e1000-devel Mailing List <e1000-devel@lists.sourceforge.net>
23 * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
25 ******************************************************************************/
27 #include <linux/etherdevice.h>
28 #include <linux/of_net.h>
29 #include <linux/pci.h>
32 #include <asm/idprom.h>
38 #include "i40e_diag.h"
39 #if IS_ENABLED(CONFIG_VXLAN)
40 #include <net/vxlan.h>
42 #if IS_ENABLED(CONFIG_GENEVE)
43 #include <net/geneve.h>
46 const char i40e_driver_name
[] = "i40e";
47 static const char i40e_driver_string
[] =
48 "Intel(R) Ethernet Connection XL710 Network Driver";
52 #define DRV_VERSION_MAJOR 1
53 #define DRV_VERSION_MINOR 4
54 #define DRV_VERSION_BUILD 8
55 #define DRV_VERSION __stringify(DRV_VERSION_MAJOR) "." \
56 __stringify(DRV_VERSION_MINOR) "." \
57 __stringify(DRV_VERSION_BUILD) DRV_KERN
58 const char i40e_driver_version_str
[] = DRV_VERSION
;
59 static const char i40e_copyright
[] = "Copyright (c) 2013 - 2014 Intel Corporation.";
61 /* a bit of forward declarations */
62 static void i40e_vsi_reinit_locked(struct i40e_vsi
*vsi
);
63 static void i40e_handle_reset_warning(struct i40e_pf
*pf
);
64 static int i40e_add_vsi(struct i40e_vsi
*vsi
);
65 static int i40e_add_veb(struct i40e_veb
*veb
, struct i40e_vsi
*vsi
);
66 static int i40e_setup_pf_switch(struct i40e_pf
*pf
, bool reinit
);
67 static int i40e_setup_misc_vector(struct i40e_pf
*pf
);
68 static void i40e_determine_queue_usage(struct i40e_pf
*pf
);
69 static int i40e_setup_pf_filter_control(struct i40e_pf
*pf
);
70 static void i40e_fill_rss_lut(struct i40e_pf
*pf
, u8
*lut
,
71 u16 rss_table_size
, u16 rss_size
);
72 static void i40e_fdir_sb_setup(struct i40e_pf
*pf
);
73 static int i40e_veb_get_bw_info(struct i40e_veb
*veb
);
75 /* i40e_pci_tbl - PCI Device ID Table
77 * Last entry must be all 0s
79 * { Vendor ID, Device ID, SubVendor ID, SubDevice ID,
80 * Class, Class Mask, private data (not used) }
82 static const struct pci_device_id i40e_pci_tbl
[] = {
83 {PCI_VDEVICE(INTEL
, I40E_DEV_ID_SFP_XL710
), 0},
84 {PCI_VDEVICE(INTEL
, I40E_DEV_ID_QEMU
), 0},
85 {PCI_VDEVICE(INTEL
, I40E_DEV_ID_KX_B
), 0},
86 {PCI_VDEVICE(INTEL
, I40E_DEV_ID_KX_C
), 0},
87 {PCI_VDEVICE(INTEL
, I40E_DEV_ID_QSFP_A
), 0},
88 {PCI_VDEVICE(INTEL
, I40E_DEV_ID_QSFP_B
), 0},
89 {PCI_VDEVICE(INTEL
, I40E_DEV_ID_QSFP_C
), 0},
90 {PCI_VDEVICE(INTEL
, I40E_DEV_ID_10G_BASE_T
), 0},
91 {PCI_VDEVICE(INTEL
, I40E_DEV_ID_10G_BASE_T4
), 0},
92 {PCI_VDEVICE(INTEL
, I40E_DEV_ID_20G_KR2
), 0},
93 {PCI_VDEVICE(INTEL
, I40E_DEV_ID_SFP_X722
), 0},
94 {PCI_VDEVICE(INTEL
, I40E_DEV_ID_1G_BASE_T_X722
), 0},
95 {PCI_VDEVICE(INTEL
, I40E_DEV_ID_10G_BASE_T_X722
), 0},
96 {PCI_VDEVICE(INTEL
, I40E_DEV_ID_20G_KR2
), 0},
97 {PCI_VDEVICE(INTEL
, I40E_DEV_ID_20G_KR2_A
), 0},
98 /* required last entry */
101 MODULE_DEVICE_TABLE(pci
, i40e_pci_tbl
);
103 #define I40E_MAX_VF_COUNT 128
104 static int debug
= -1;
105 module_param(debug
, int, 0);
106 MODULE_PARM_DESC(debug
, "Debug level (0=none,...,16=all)");
108 MODULE_AUTHOR("Intel Corporation, <e1000-devel@lists.sourceforge.net>");
109 MODULE_DESCRIPTION("Intel(R) Ethernet Connection XL710 Network Driver");
110 MODULE_LICENSE("GPL");
111 MODULE_VERSION(DRV_VERSION
);
114 * i40e_allocate_dma_mem_d - OS specific memory alloc for shared code
115 * @hw: pointer to the HW structure
116 * @mem: ptr to mem struct to fill out
117 * @size: size of memory requested
118 * @alignment: what to align the allocation to
120 int i40e_allocate_dma_mem_d(struct i40e_hw
*hw
, struct i40e_dma_mem
*mem
,
121 u64 size
, u32 alignment
)
123 struct i40e_pf
*pf
= (struct i40e_pf
*)hw
->back
;
125 mem
->size
= ALIGN(size
, alignment
);
126 mem
->va
= dma_zalloc_coherent(&pf
->pdev
->dev
, mem
->size
,
127 &mem
->pa
, GFP_KERNEL
);
135 * i40e_free_dma_mem_d - OS specific memory free for shared code
136 * @hw: pointer to the HW structure
137 * @mem: ptr to mem struct to free
139 int i40e_free_dma_mem_d(struct i40e_hw
*hw
, struct i40e_dma_mem
*mem
)
141 struct i40e_pf
*pf
= (struct i40e_pf
*)hw
->back
;
143 dma_free_coherent(&pf
->pdev
->dev
, mem
->size
, mem
->va
, mem
->pa
);
152 * i40e_allocate_virt_mem_d - OS specific memory alloc for shared code
153 * @hw: pointer to the HW structure
154 * @mem: ptr to mem struct to fill out
155 * @size: size of memory requested
157 int i40e_allocate_virt_mem_d(struct i40e_hw
*hw
, struct i40e_virt_mem
*mem
,
161 mem
->va
= kzalloc(size
, GFP_KERNEL
);
170 * i40e_free_virt_mem_d - OS specific memory free for shared code
171 * @hw: pointer to the HW structure
172 * @mem: ptr to mem struct to free
174 int i40e_free_virt_mem_d(struct i40e_hw
*hw
, struct i40e_virt_mem
*mem
)
176 /* it's ok to kfree a NULL pointer */
185 * i40e_get_lump - find a lump of free generic resource
186 * @pf: board private structure
187 * @pile: the pile of resource to search
188 * @needed: the number of items needed
189 * @id: an owner id to stick on the items assigned
191 * Returns the base item index of the lump, or negative for error
193 * The search_hint trick and lack of advanced fit-finding only work
194 * because we're highly likely to have all the same size lump requests.
195 * Linear search time and any fragmentation should be minimal.
197 static int i40e_get_lump(struct i40e_pf
*pf
, struct i40e_lump_tracking
*pile
,
203 if (!pile
|| needed
== 0 || id
>= I40E_PILE_VALID_BIT
) {
204 dev_info(&pf
->pdev
->dev
,
205 "param err: pile=%p needed=%d id=0x%04x\n",
210 /* start the linear search with an imperfect hint */
211 i
= pile
->search_hint
;
212 while (i
< pile
->num_entries
) {
213 /* skip already allocated entries */
214 if (pile
->list
[i
] & I40E_PILE_VALID_BIT
) {
219 /* do we have enough in this lump? */
220 for (j
= 0; (j
< needed
) && ((i
+j
) < pile
->num_entries
); j
++) {
221 if (pile
->list
[i
+j
] & I40E_PILE_VALID_BIT
)
226 /* there was enough, so assign it to the requestor */
227 for (j
= 0; j
< needed
; j
++)
228 pile
->list
[i
+j
] = id
| I40E_PILE_VALID_BIT
;
230 pile
->search_hint
= i
+ j
;
234 /* not enough, so skip over it and continue looking */
242 * i40e_put_lump - return a lump of generic resource
243 * @pile: the pile of resource to search
244 * @index: the base item index
245 * @id: the owner id of the items assigned
247 * Returns the count of items in the lump
249 static int i40e_put_lump(struct i40e_lump_tracking
*pile
, u16 index
, u16 id
)
251 int valid_id
= (id
| I40E_PILE_VALID_BIT
);
255 if (!pile
|| index
>= pile
->num_entries
)
259 i
< pile
->num_entries
&& pile
->list
[i
] == valid_id
;
265 if (count
&& index
< pile
->search_hint
)
266 pile
->search_hint
= index
;
272 * i40e_find_vsi_from_id - searches for the vsi with the given id
273 * @pf - the pf structure to search for the vsi
274 * @id - id of the vsi it is searching for
276 struct i40e_vsi
*i40e_find_vsi_from_id(struct i40e_pf
*pf
, u16 id
)
280 for (i
= 0; i
< pf
->num_alloc_vsi
; i
++)
281 if (pf
->vsi
[i
] && (pf
->vsi
[i
]->id
== id
))
288 * i40e_service_event_schedule - Schedule the service task to wake up
289 * @pf: board private structure
291 * If not already scheduled, this puts the task into the work queue
293 static void i40e_service_event_schedule(struct i40e_pf
*pf
)
295 if (!test_bit(__I40E_DOWN
, &pf
->state
) &&
296 !test_bit(__I40E_RESET_RECOVERY_PENDING
, &pf
->state
) &&
297 !test_and_set_bit(__I40E_SERVICE_SCHED
, &pf
->state
))
298 schedule_work(&pf
->service_task
);
302 * i40e_tx_timeout - Respond to a Tx Hang
303 * @netdev: network interface device structure
305 * If any port has noticed a Tx timeout, it is likely that the whole
306 * device is munged, not just the one netdev port, so go for the full
310 void i40e_tx_timeout(struct net_device
*netdev
)
312 static void i40e_tx_timeout(struct net_device
*netdev
)
315 struct i40e_netdev_priv
*np
= netdev_priv(netdev
);
316 struct i40e_vsi
*vsi
= np
->vsi
;
317 struct i40e_pf
*pf
= vsi
->back
;
318 struct i40e_ring
*tx_ring
= NULL
;
319 unsigned int i
, hung_queue
= 0;
322 pf
->tx_timeout_count
++;
324 /* find the stopped queue the same way the stack does */
325 for (i
= 0; i
< netdev
->num_tx_queues
; i
++) {
326 struct netdev_queue
*q
;
327 unsigned long trans_start
;
329 q
= netdev_get_tx_queue(netdev
, i
);
330 trans_start
= q
->trans_start
? : netdev
->trans_start
;
331 if (netif_xmit_stopped(q
) &&
333 (trans_start
+ netdev
->watchdog_timeo
))) {
339 if (i
== netdev
->num_tx_queues
) {
340 netdev_info(netdev
, "tx_timeout: no netdev hung queue found\n");
342 /* now that we have an index, find the tx_ring struct */
343 for (i
= 0; i
< vsi
->num_queue_pairs
; i
++) {
344 if (vsi
->tx_rings
[i
] && vsi
->tx_rings
[i
]->desc
) {
346 vsi
->tx_rings
[i
]->queue_index
) {
347 tx_ring
= vsi
->tx_rings
[i
];
354 if (time_after(jiffies
, (pf
->tx_timeout_last_recovery
+ HZ
*20)))
355 pf
->tx_timeout_recovery_level
= 1; /* reset after some time */
356 else if (time_before(jiffies
,
357 (pf
->tx_timeout_last_recovery
+ netdev
->watchdog_timeo
)))
358 return; /* don't do any new action before the next timeout */
361 head
= i40e_get_head(tx_ring
);
362 /* Read interrupt register */
363 if (pf
->flags
& I40E_FLAG_MSIX_ENABLED
)
365 I40E_PFINT_DYN_CTLN(tx_ring
->q_vector
->v_idx
+
366 tx_ring
->vsi
->base_vector
- 1));
368 val
= rd32(&pf
->hw
, I40E_PFINT_DYN_CTL0
);
370 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",
371 vsi
->seid
, hung_queue
, tx_ring
->next_to_clean
,
372 head
, tx_ring
->next_to_use
,
373 readl(tx_ring
->tail
), val
);
376 pf
->tx_timeout_last_recovery
= jiffies
;
377 netdev_info(netdev
, "tx_timeout recovery level %d, hung_queue %d\n",
378 pf
->tx_timeout_recovery_level
, hung_queue
);
380 switch (pf
->tx_timeout_recovery_level
) {
382 set_bit(__I40E_PF_RESET_REQUESTED
, &pf
->state
);
385 set_bit(__I40E_CORE_RESET_REQUESTED
, &pf
->state
);
388 set_bit(__I40E_GLOBAL_RESET_REQUESTED
, &pf
->state
);
391 netdev_err(netdev
, "tx_timeout recovery unsuccessful\n");
395 i40e_service_event_schedule(pf
);
396 pf
->tx_timeout_recovery_level
++;
400 * i40e_release_rx_desc - Store the new tail and head values
401 * @rx_ring: ring to bump
402 * @val: new head index
404 static inline void i40e_release_rx_desc(struct i40e_ring
*rx_ring
, u32 val
)
406 rx_ring
->next_to_use
= val
;
408 /* Force memory writes to complete before letting h/w
409 * know there are new descriptors to fetch. (Only
410 * applicable for weak-ordered memory model archs,
414 writel(val
, rx_ring
->tail
);
418 * i40e_get_vsi_stats_struct - Get System Network Statistics
419 * @vsi: the VSI we care about
421 * Returns the address of the device statistics structure.
422 * The statistics are actually updated from the service task.
424 struct rtnl_link_stats64
*i40e_get_vsi_stats_struct(struct i40e_vsi
*vsi
)
426 return &vsi
->net_stats
;
430 * i40e_get_netdev_stats_struct - Get statistics for netdev interface
431 * @netdev: network interface device structure
433 * Returns the address of the device statistics structure.
434 * The statistics are actually updated from the service task.
437 struct rtnl_link_stats64
*i40e_get_netdev_stats_struct(
438 struct net_device
*netdev
,
439 struct rtnl_link_stats64
*stats
)
441 static struct rtnl_link_stats64
*i40e_get_netdev_stats_struct(
442 struct net_device
*netdev
,
443 struct rtnl_link_stats64
*stats
)
446 struct i40e_netdev_priv
*np
= netdev_priv(netdev
);
447 struct i40e_ring
*tx_ring
, *rx_ring
;
448 struct i40e_vsi
*vsi
= np
->vsi
;
449 struct rtnl_link_stats64
*vsi_stats
= i40e_get_vsi_stats_struct(vsi
);
452 if (test_bit(__I40E_DOWN
, &vsi
->state
))
459 for (i
= 0; i
< vsi
->num_queue_pairs
; i
++) {
463 tx_ring
= ACCESS_ONCE(vsi
->tx_rings
[i
]);
468 start
= u64_stats_fetch_begin_irq(&tx_ring
->syncp
);
469 packets
= tx_ring
->stats
.packets
;
470 bytes
= tx_ring
->stats
.bytes
;
471 } while (u64_stats_fetch_retry_irq(&tx_ring
->syncp
, start
));
473 stats
->tx_packets
+= packets
;
474 stats
->tx_bytes
+= bytes
;
475 rx_ring
= &tx_ring
[1];
478 start
= u64_stats_fetch_begin_irq(&rx_ring
->syncp
);
479 packets
= rx_ring
->stats
.packets
;
480 bytes
= rx_ring
->stats
.bytes
;
481 } while (u64_stats_fetch_retry_irq(&rx_ring
->syncp
, start
));
483 stats
->rx_packets
+= packets
;
484 stats
->rx_bytes
+= bytes
;
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
;
501 * i40e_vsi_reset_stats - Resets all stats of the given vsi
502 * @vsi: the VSI to have its stats reset
504 void i40e_vsi_reset_stats(struct i40e_vsi
*vsi
)
506 struct rtnl_link_stats64
*ns
;
512 ns
= i40e_get_vsi_stats_struct(vsi
);
513 memset(ns
, 0, sizeof(*ns
));
514 memset(&vsi
->net_stats_offsets
, 0, sizeof(vsi
->net_stats_offsets
));
515 memset(&vsi
->eth_stats
, 0, sizeof(vsi
->eth_stats
));
516 memset(&vsi
->eth_stats_offsets
, 0, sizeof(vsi
->eth_stats_offsets
));
517 if (vsi
->rx_rings
&& vsi
->rx_rings
[0]) {
518 for (i
= 0; i
< vsi
->num_queue_pairs
; i
++) {
519 memset(&vsi
->rx_rings
[i
]->stats
, 0,
520 sizeof(vsi
->rx_rings
[i
]->stats
));
521 memset(&vsi
->rx_rings
[i
]->rx_stats
, 0,
522 sizeof(vsi
->rx_rings
[i
]->rx_stats
));
523 memset(&vsi
->tx_rings
[i
]->stats
, 0,
524 sizeof(vsi
->tx_rings
[i
]->stats
));
525 memset(&vsi
->tx_rings
[i
]->tx_stats
, 0,
526 sizeof(vsi
->tx_rings
[i
]->tx_stats
));
529 vsi
->stat_offsets_loaded
= false;
533 * i40e_pf_reset_stats - Reset all of the stats for the given PF
534 * @pf: the PF to be reset
536 void i40e_pf_reset_stats(struct i40e_pf
*pf
)
540 memset(&pf
->stats
, 0, sizeof(pf
->stats
));
541 memset(&pf
->stats_offsets
, 0, sizeof(pf
->stats_offsets
));
542 pf
->stat_offsets_loaded
= false;
544 for (i
= 0; i
< I40E_MAX_VEB
; i
++) {
546 memset(&pf
->veb
[i
]->stats
, 0,
547 sizeof(pf
->veb
[i
]->stats
));
548 memset(&pf
->veb
[i
]->stats_offsets
, 0,
549 sizeof(pf
->veb
[i
]->stats_offsets
));
550 pf
->veb
[i
]->stat_offsets_loaded
= false;
556 * i40e_stat_update48 - read and update a 48 bit stat from the chip
557 * @hw: ptr to the hardware info
558 * @hireg: the high 32 bit reg to read
559 * @loreg: the low 32 bit reg to read
560 * @offset_loaded: has the initial offset been loaded yet
561 * @offset: ptr to current offset value
562 * @stat: ptr to the stat
564 * Since the device stats are not reset at PFReset, they likely will not
565 * be zeroed when the driver starts. We'll save the first values read
566 * and use them as offsets to be subtracted from the raw values in order
567 * to report stats that count from zero. In the process, we also manage
568 * the potential roll-over.
570 static void i40e_stat_update48(struct i40e_hw
*hw
, u32 hireg
, u32 loreg
,
571 bool offset_loaded
, u64
*offset
, u64
*stat
)
575 if (hw
->device_id
== I40E_DEV_ID_QEMU
) {
576 new_data
= rd32(hw
, loreg
);
577 new_data
|= ((u64
)(rd32(hw
, hireg
) & 0xFFFF)) << 32;
579 new_data
= rd64(hw
, loreg
);
583 if (likely(new_data
>= *offset
))
584 *stat
= new_data
- *offset
;
586 *stat
= (new_data
+ BIT_ULL(48)) - *offset
;
587 *stat
&= 0xFFFFFFFFFFFFULL
;
591 * i40e_stat_update32 - read and update a 32 bit stat from the chip
592 * @hw: ptr to the hardware info
593 * @reg: the hw reg to read
594 * @offset_loaded: has the initial offset been loaded yet
595 * @offset: ptr to current offset value
596 * @stat: ptr to the stat
598 static void i40e_stat_update32(struct i40e_hw
*hw
, u32 reg
,
599 bool offset_loaded
, u64
*offset
, u64
*stat
)
603 new_data
= rd32(hw
, reg
);
606 if (likely(new_data
>= *offset
))
607 *stat
= (u32
)(new_data
- *offset
);
609 *stat
= (u32
)((new_data
+ BIT_ULL(32)) - *offset
);
613 * i40e_update_eth_stats - Update VSI-specific ethernet statistics counters.
614 * @vsi: the VSI to be updated
616 void i40e_update_eth_stats(struct i40e_vsi
*vsi
)
618 int stat_idx
= le16_to_cpu(vsi
->info
.stat_counter_idx
);
619 struct i40e_pf
*pf
= vsi
->back
;
620 struct i40e_hw
*hw
= &pf
->hw
;
621 struct i40e_eth_stats
*oes
;
622 struct i40e_eth_stats
*es
; /* device's eth stats */
624 es
= &vsi
->eth_stats
;
625 oes
= &vsi
->eth_stats_offsets
;
627 /* Gather up the stats that the hw collects */
628 i40e_stat_update32(hw
, I40E_GLV_TEPC(stat_idx
),
629 vsi
->stat_offsets_loaded
,
630 &oes
->tx_errors
, &es
->tx_errors
);
631 i40e_stat_update32(hw
, I40E_GLV_RDPC(stat_idx
),
632 vsi
->stat_offsets_loaded
,
633 &oes
->rx_discards
, &es
->rx_discards
);
634 i40e_stat_update32(hw
, I40E_GLV_RUPP(stat_idx
),
635 vsi
->stat_offsets_loaded
,
636 &oes
->rx_unknown_protocol
, &es
->rx_unknown_protocol
);
637 i40e_stat_update32(hw
, I40E_GLV_TEPC(stat_idx
),
638 vsi
->stat_offsets_loaded
,
639 &oes
->tx_errors
, &es
->tx_errors
);
641 i40e_stat_update48(hw
, I40E_GLV_GORCH(stat_idx
),
642 I40E_GLV_GORCL(stat_idx
),
643 vsi
->stat_offsets_loaded
,
644 &oes
->rx_bytes
, &es
->rx_bytes
);
645 i40e_stat_update48(hw
, I40E_GLV_UPRCH(stat_idx
),
646 I40E_GLV_UPRCL(stat_idx
),
647 vsi
->stat_offsets_loaded
,
648 &oes
->rx_unicast
, &es
->rx_unicast
);
649 i40e_stat_update48(hw
, I40E_GLV_MPRCH(stat_idx
),
650 I40E_GLV_MPRCL(stat_idx
),
651 vsi
->stat_offsets_loaded
,
652 &oes
->rx_multicast
, &es
->rx_multicast
);
653 i40e_stat_update48(hw
, I40E_GLV_BPRCH(stat_idx
),
654 I40E_GLV_BPRCL(stat_idx
),
655 vsi
->stat_offsets_loaded
,
656 &oes
->rx_broadcast
, &es
->rx_broadcast
);
658 i40e_stat_update48(hw
, I40E_GLV_GOTCH(stat_idx
),
659 I40E_GLV_GOTCL(stat_idx
),
660 vsi
->stat_offsets_loaded
,
661 &oes
->tx_bytes
, &es
->tx_bytes
);
662 i40e_stat_update48(hw
, I40E_GLV_UPTCH(stat_idx
),
663 I40E_GLV_UPTCL(stat_idx
),
664 vsi
->stat_offsets_loaded
,
665 &oes
->tx_unicast
, &es
->tx_unicast
);
666 i40e_stat_update48(hw
, I40E_GLV_MPTCH(stat_idx
),
667 I40E_GLV_MPTCL(stat_idx
),
668 vsi
->stat_offsets_loaded
,
669 &oes
->tx_multicast
, &es
->tx_multicast
);
670 i40e_stat_update48(hw
, I40E_GLV_BPTCH(stat_idx
),
671 I40E_GLV_BPTCL(stat_idx
),
672 vsi
->stat_offsets_loaded
,
673 &oes
->tx_broadcast
, &es
->tx_broadcast
);
674 vsi
->stat_offsets_loaded
= true;
678 * i40e_update_veb_stats - Update Switch component statistics
679 * @veb: the VEB being updated
681 static void i40e_update_veb_stats(struct i40e_veb
*veb
)
683 struct i40e_pf
*pf
= veb
->pf
;
684 struct i40e_hw
*hw
= &pf
->hw
;
685 struct i40e_eth_stats
*oes
;
686 struct i40e_eth_stats
*es
; /* device's eth stats */
687 struct i40e_veb_tc_stats
*veb_oes
;
688 struct i40e_veb_tc_stats
*veb_es
;
691 idx
= veb
->stats_idx
;
693 oes
= &veb
->stats_offsets
;
694 veb_es
= &veb
->tc_stats
;
695 veb_oes
= &veb
->tc_stats_offsets
;
697 /* Gather up the stats that the hw collects */
698 i40e_stat_update32(hw
, I40E_GLSW_TDPC(idx
),
699 veb
->stat_offsets_loaded
,
700 &oes
->tx_discards
, &es
->tx_discards
);
701 if (hw
->revision_id
> 0)
702 i40e_stat_update32(hw
, I40E_GLSW_RUPP(idx
),
703 veb
->stat_offsets_loaded
,
704 &oes
->rx_unknown_protocol
,
705 &es
->rx_unknown_protocol
);
706 i40e_stat_update48(hw
, I40E_GLSW_GORCH(idx
), I40E_GLSW_GORCL(idx
),
707 veb
->stat_offsets_loaded
,
708 &oes
->rx_bytes
, &es
->rx_bytes
);
709 i40e_stat_update48(hw
, I40E_GLSW_UPRCH(idx
), I40E_GLSW_UPRCL(idx
),
710 veb
->stat_offsets_loaded
,
711 &oes
->rx_unicast
, &es
->rx_unicast
);
712 i40e_stat_update48(hw
, I40E_GLSW_MPRCH(idx
), I40E_GLSW_MPRCL(idx
),
713 veb
->stat_offsets_loaded
,
714 &oes
->rx_multicast
, &es
->rx_multicast
);
715 i40e_stat_update48(hw
, I40E_GLSW_BPRCH(idx
), I40E_GLSW_BPRCL(idx
),
716 veb
->stat_offsets_loaded
,
717 &oes
->rx_broadcast
, &es
->rx_broadcast
);
719 i40e_stat_update48(hw
, I40E_GLSW_GOTCH(idx
), I40E_GLSW_GOTCL(idx
),
720 veb
->stat_offsets_loaded
,
721 &oes
->tx_bytes
, &es
->tx_bytes
);
722 i40e_stat_update48(hw
, I40E_GLSW_UPTCH(idx
), I40E_GLSW_UPTCL(idx
),
723 veb
->stat_offsets_loaded
,
724 &oes
->tx_unicast
, &es
->tx_unicast
);
725 i40e_stat_update48(hw
, I40E_GLSW_MPTCH(idx
), I40E_GLSW_MPTCL(idx
),
726 veb
->stat_offsets_loaded
,
727 &oes
->tx_multicast
, &es
->tx_multicast
);
728 i40e_stat_update48(hw
, I40E_GLSW_BPTCH(idx
), I40E_GLSW_BPTCL(idx
),
729 veb
->stat_offsets_loaded
,
730 &oes
->tx_broadcast
, &es
->tx_broadcast
);
731 for (i
= 0; i
< I40E_MAX_TRAFFIC_CLASS
; i
++) {
732 i40e_stat_update48(hw
, I40E_GLVEBTC_RPCH(i
, idx
),
733 I40E_GLVEBTC_RPCL(i
, idx
),
734 veb
->stat_offsets_loaded
,
735 &veb_oes
->tc_rx_packets
[i
],
736 &veb_es
->tc_rx_packets
[i
]);
737 i40e_stat_update48(hw
, I40E_GLVEBTC_RBCH(i
, idx
),
738 I40E_GLVEBTC_RBCL(i
, idx
),
739 veb
->stat_offsets_loaded
,
740 &veb_oes
->tc_rx_bytes
[i
],
741 &veb_es
->tc_rx_bytes
[i
]);
742 i40e_stat_update48(hw
, I40E_GLVEBTC_TPCH(i
, idx
),
743 I40E_GLVEBTC_TPCL(i
, idx
),
744 veb
->stat_offsets_loaded
,
745 &veb_oes
->tc_tx_packets
[i
],
746 &veb_es
->tc_tx_packets
[i
]);
747 i40e_stat_update48(hw
, I40E_GLVEBTC_TBCH(i
, idx
),
748 I40E_GLVEBTC_TBCL(i
, idx
),
749 veb
->stat_offsets_loaded
,
750 &veb_oes
->tc_tx_bytes
[i
],
751 &veb_es
->tc_tx_bytes
[i
]);
753 veb
->stat_offsets_loaded
= true;
758 * i40e_update_fcoe_stats - Update FCoE-specific ethernet statistics counters.
759 * @vsi: the VSI that is capable of doing FCoE
761 static void i40e_update_fcoe_stats(struct i40e_vsi
*vsi
)
763 struct i40e_pf
*pf
= vsi
->back
;
764 struct i40e_hw
*hw
= &pf
->hw
;
765 struct i40e_fcoe_stats
*ofs
;
766 struct i40e_fcoe_stats
*fs
; /* device's eth stats */
769 if (vsi
->type
!= I40E_VSI_FCOE
)
772 idx
= (pf
->pf_seid
- I40E_BASE_PF_SEID
) + I40E_FCOE_PF_STAT_OFFSET
;
773 fs
= &vsi
->fcoe_stats
;
774 ofs
= &vsi
->fcoe_stats_offsets
;
776 i40e_stat_update32(hw
, I40E_GL_FCOEPRC(idx
),
777 vsi
->fcoe_stat_offsets_loaded
,
778 &ofs
->rx_fcoe_packets
, &fs
->rx_fcoe_packets
);
779 i40e_stat_update48(hw
, I40E_GL_FCOEDWRCH(idx
), I40E_GL_FCOEDWRCL(idx
),
780 vsi
->fcoe_stat_offsets_loaded
,
781 &ofs
->rx_fcoe_dwords
, &fs
->rx_fcoe_dwords
);
782 i40e_stat_update32(hw
, I40E_GL_FCOERPDC(idx
),
783 vsi
->fcoe_stat_offsets_loaded
,
784 &ofs
->rx_fcoe_dropped
, &fs
->rx_fcoe_dropped
);
785 i40e_stat_update32(hw
, I40E_GL_FCOEPTC(idx
),
786 vsi
->fcoe_stat_offsets_loaded
,
787 &ofs
->tx_fcoe_packets
, &fs
->tx_fcoe_packets
);
788 i40e_stat_update48(hw
, I40E_GL_FCOEDWTCH(idx
), I40E_GL_FCOEDWTCL(idx
),
789 vsi
->fcoe_stat_offsets_loaded
,
790 &ofs
->tx_fcoe_dwords
, &fs
->tx_fcoe_dwords
);
791 i40e_stat_update32(hw
, I40E_GL_FCOECRC(idx
),
792 vsi
->fcoe_stat_offsets_loaded
,
793 &ofs
->fcoe_bad_fccrc
, &fs
->fcoe_bad_fccrc
);
794 i40e_stat_update32(hw
, I40E_GL_FCOELAST(idx
),
795 vsi
->fcoe_stat_offsets_loaded
,
796 &ofs
->fcoe_last_error
, &fs
->fcoe_last_error
);
797 i40e_stat_update32(hw
, I40E_GL_FCOEDDPC(idx
),
798 vsi
->fcoe_stat_offsets_loaded
,
799 &ofs
->fcoe_ddp_count
, &fs
->fcoe_ddp_count
);
801 vsi
->fcoe_stat_offsets_loaded
= true;
806 * i40e_update_vsi_stats - Update the vsi statistics counters.
807 * @vsi: the VSI to be updated
809 * There are a few instances where we store the same stat in a
810 * couple of different structs. This is partly because we have
811 * the netdev stats that need to be filled out, which is slightly
812 * different from the "eth_stats" defined by the chip and used in
813 * VF communications. We sort it out here.
815 static void i40e_update_vsi_stats(struct i40e_vsi
*vsi
)
817 struct i40e_pf
*pf
= vsi
->back
;
818 struct rtnl_link_stats64
*ons
;
819 struct rtnl_link_stats64
*ns
; /* netdev stats */
820 struct i40e_eth_stats
*oes
;
821 struct i40e_eth_stats
*es
; /* device's eth stats */
822 u32 tx_restart
, tx_busy
;
833 if (test_bit(__I40E_DOWN
, &vsi
->state
) ||
834 test_bit(__I40E_CONFIG_BUSY
, &pf
->state
))
837 ns
= i40e_get_vsi_stats_struct(vsi
);
838 ons
= &vsi
->net_stats_offsets
;
839 es
= &vsi
->eth_stats
;
840 oes
= &vsi
->eth_stats_offsets
;
842 /* Gather up the netdev and vsi stats that the driver collects
843 * on the fly during packet processing
847 tx_restart
= tx_busy
= tx_linearize
= tx_force_wb
= 0;
851 for (q
= 0; q
< vsi
->num_queue_pairs
; q
++) {
853 p
= ACCESS_ONCE(vsi
->tx_rings
[q
]);
856 start
= u64_stats_fetch_begin_irq(&p
->syncp
);
857 packets
= p
->stats
.packets
;
858 bytes
= p
->stats
.bytes
;
859 } while (u64_stats_fetch_retry_irq(&p
->syncp
, start
));
862 tx_restart
+= p
->tx_stats
.restart_queue
;
863 tx_busy
+= p
->tx_stats
.tx_busy
;
864 tx_linearize
+= p
->tx_stats
.tx_linearize
;
865 tx_force_wb
+= p
->tx_stats
.tx_force_wb
;
867 /* Rx queue is part of the same block as Tx queue */
870 start
= u64_stats_fetch_begin_irq(&p
->syncp
);
871 packets
= p
->stats
.packets
;
872 bytes
= p
->stats
.bytes
;
873 } while (u64_stats_fetch_retry_irq(&p
->syncp
, start
));
876 rx_buf
+= p
->rx_stats
.alloc_buff_failed
;
877 rx_page
+= p
->rx_stats
.alloc_page_failed
;
880 vsi
->tx_restart
= tx_restart
;
881 vsi
->tx_busy
= tx_busy
;
882 vsi
->tx_linearize
= tx_linearize
;
883 vsi
->tx_force_wb
= tx_force_wb
;
884 vsi
->rx_page_failed
= rx_page
;
885 vsi
->rx_buf_failed
= rx_buf
;
887 ns
->rx_packets
= rx_p
;
889 ns
->tx_packets
= tx_p
;
892 /* update netdev stats from eth stats */
893 i40e_update_eth_stats(vsi
);
894 ons
->tx_errors
= oes
->tx_errors
;
895 ns
->tx_errors
= es
->tx_errors
;
896 ons
->multicast
= oes
->rx_multicast
;
897 ns
->multicast
= es
->rx_multicast
;
898 ons
->rx_dropped
= oes
->rx_discards
;
899 ns
->rx_dropped
= es
->rx_discards
;
900 ons
->tx_dropped
= oes
->tx_discards
;
901 ns
->tx_dropped
= es
->tx_discards
;
903 /* pull in a couple PF stats if this is the main vsi */
904 if (vsi
== pf
->vsi
[pf
->lan_vsi
]) {
905 ns
->rx_crc_errors
= pf
->stats
.crc_errors
;
906 ns
->rx_errors
= pf
->stats
.crc_errors
+ pf
->stats
.illegal_bytes
;
907 ns
->rx_length_errors
= pf
->stats
.rx_length_errors
;
912 * i40e_update_pf_stats - Update the PF statistics counters.
913 * @pf: the PF to be updated
915 static void i40e_update_pf_stats(struct i40e_pf
*pf
)
917 struct i40e_hw_port_stats
*osd
= &pf
->stats_offsets
;
918 struct i40e_hw_port_stats
*nsd
= &pf
->stats
;
919 struct i40e_hw
*hw
= &pf
->hw
;
923 i40e_stat_update48(hw
, I40E_GLPRT_GORCH(hw
->port
),
924 I40E_GLPRT_GORCL(hw
->port
),
925 pf
->stat_offsets_loaded
,
926 &osd
->eth
.rx_bytes
, &nsd
->eth
.rx_bytes
);
927 i40e_stat_update48(hw
, I40E_GLPRT_GOTCH(hw
->port
),
928 I40E_GLPRT_GOTCL(hw
->port
),
929 pf
->stat_offsets_loaded
,
930 &osd
->eth
.tx_bytes
, &nsd
->eth
.tx_bytes
);
931 i40e_stat_update32(hw
, I40E_GLPRT_RDPC(hw
->port
),
932 pf
->stat_offsets_loaded
,
933 &osd
->eth
.rx_discards
,
934 &nsd
->eth
.rx_discards
);
935 i40e_stat_update48(hw
, I40E_GLPRT_UPRCH(hw
->port
),
936 I40E_GLPRT_UPRCL(hw
->port
),
937 pf
->stat_offsets_loaded
,
938 &osd
->eth
.rx_unicast
,
939 &nsd
->eth
.rx_unicast
);
940 i40e_stat_update48(hw
, I40E_GLPRT_MPRCH(hw
->port
),
941 I40E_GLPRT_MPRCL(hw
->port
),
942 pf
->stat_offsets_loaded
,
943 &osd
->eth
.rx_multicast
,
944 &nsd
->eth
.rx_multicast
);
945 i40e_stat_update48(hw
, I40E_GLPRT_BPRCH(hw
->port
),
946 I40E_GLPRT_BPRCL(hw
->port
),
947 pf
->stat_offsets_loaded
,
948 &osd
->eth
.rx_broadcast
,
949 &nsd
->eth
.rx_broadcast
);
950 i40e_stat_update48(hw
, I40E_GLPRT_UPTCH(hw
->port
),
951 I40E_GLPRT_UPTCL(hw
->port
),
952 pf
->stat_offsets_loaded
,
953 &osd
->eth
.tx_unicast
,
954 &nsd
->eth
.tx_unicast
);
955 i40e_stat_update48(hw
, I40E_GLPRT_MPTCH(hw
->port
),
956 I40E_GLPRT_MPTCL(hw
->port
),
957 pf
->stat_offsets_loaded
,
958 &osd
->eth
.tx_multicast
,
959 &nsd
->eth
.tx_multicast
);
960 i40e_stat_update48(hw
, I40E_GLPRT_BPTCH(hw
->port
),
961 I40E_GLPRT_BPTCL(hw
->port
),
962 pf
->stat_offsets_loaded
,
963 &osd
->eth
.tx_broadcast
,
964 &nsd
->eth
.tx_broadcast
);
966 i40e_stat_update32(hw
, I40E_GLPRT_TDOLD(hw
->port
),
967 pf
->stat_offsets_loaded
,
968 &osd
->tx_dropped_link_down
,
969 &nsd
->tx_dropped_link_down
);
971 i40e_stat_update32(hw
, I40E_GLPRT_CRCERRS(hw
->port
),
972 pf
->stat_offsets_loaded
,
973 &osd
->crc_errors
, &nsd
->crc_errors
);
975 i40e_stat_update32(hw
, I40E_GLPRT_ILLERRC(hw
->port
),
976 pf
->stat_offsets_loaded
,
977 &osd
->illegal_bytes
, &nsd
->illegal_bytes
);
979 i40e_stat_update32(hw
, I40E_GLPRT_MLFC(hw
->port
),
980 pf
->stat_offsets_loaded
,
981 &osd
->mac_local_faults
,
982 &nsd
->mac_local_faults
);
983 i40e_stat_update32(hw
, I40E_GLPRT_MRFC(hw
->port
),
984 pf
->stat_offsets_loaded
,
985 &osd
->mac_remote_faults
,
986 &nsd
->mac_remote_faults
);
988 i40e_stat_update32(hw
, I40E_GLPRT_RLEC(hw
->port
),
989 pf
->stat_offsets_loaded
,
990 &osd
->rx_length_errors
,
991 &nsd
->rx_length_errors
);
993 i40e_stat_update32(hw
, I40E_GLPRT_LXONRXC(hw
->port
),
994 pf
->stat_offsets_loaded
,
995 &osd
->link_xon_rx
, &nsd
->link_xon_rx
);
996 i40e_stat_update32(hw
, I40E_GLPRT_LXONTXC(hw
->port
),
997 pf
->stat_offsets_loaded
,
998 &osd
->link_xon_tx
, &nsd
->link_xon_tx
);
999 i40e_stat_update32(hw
, I40E_GLPRT_LXOFFRXC(hw
->port
),
1000 pf
->stat_offsets_loaded
,
1001 &osd
->link_xoff_rx
, &nsd
->link_xoff_rx
);
1002 i40e_stat_update32(hw
, I40E_GLPRT_LXOFFTXC(hw
->port
),
1003 pf
->stat_offsets_loaded
,
1004 &osd
->link_xoff_tx
, &nsd
->link_xoff_tx
);
1006 for (i
= 0; i
< 8; i
++) {
1007 i40e_stat_update32(hw
, I40E_GLPRT_PXOFFRXC(hw
->port
, i
),
1008 pf
->stat_offsets_loaded
,
1009 &osd
->priority_xoff_rx
[i
],
1010 &nsd
->priority_xoff_rx
[i
]);
1011 i40e_stat_update32(hw
, I40E_GLPRT_PXONRXC(hw
->port
, i
),
1012 pf
->stat_offsets_loaded
,
1013 &osd
->priority_xon_rx
[i
],
1014 &nsd
->priority_xon_rx
[i
]);
1015 i40e_stat_update32(hw
, I40E_GLPRT_PXONTXC(hw
->port
, i
),
1016 pf
->stat_offsets_loaded
,
1017 &osd
->priority_xon_tx
[i
],
1018 &nsd
->priority_xon_tx
[i
]);
1019 i40e_stat_update32(hw
, I40E_GLPRT_PXOFFTXC(hw
->port
, i
),
1020 pf
->stat_offsets_loaded
,
1021 &osd
->priority_xoff_tx
[i
],
1022 &nsd
->priority_xoff_tx
[i
]);
1023 i40e_stat_update32(hw
,
1024 I40E_GLPRT_RXON2OFFCNT(hw
->port
, i
),
1025 pf
->stat_offsets_loaded
,
1026 &osd
->priority_xon_2_xoff
[i
],
1027 &nsd
->priority_xon_2_xoff
[i
]);
1030 i40e_stat_update48(hw
, I40E_GLPRT_PRC64H(hw
->port
),
1031 I40E_GLPRT_PRC64L(hw
->port
),
1032 pf
->stat_offsets_loaded
,
1033 &osd
->rx_size_64
, &nsd
->rx_size_64
);
1034 i40e_stat_update48(hw
, I40E_GLPRT_PRC127H(hw
->port
),
1035 I40E_GLPRT_PRC127L(hw
->port
),
1036 pf
->stat_offsets_loaded
,
1037 &osd
->rx_size_127
, &nsd
->rx_size_127
);
1038 i40e_stat_update48(hw
, I40E_GLPRT_PRC255H(hw
->port
),
1039 I40E_GLPRT_PRC255L(hw
->port
),
1040 pf
->stat_offsets_loaded
,
1041 &osd
->rx_size_255
, &nsd
->rx_size_255
);
1042 i40e_stat_update48(hw
, I40E_GLPRT_PRC511H(hw
->port
),
1043 I40E_GLPRT_PRC511L(hw
->port
),
1044 pf
->stat_offsets_loaded
,
1045 &osd
->rx_size_511
, &nsd
->rx_size_511
);
1046 i40e_stat_update48(hw
, I40E_GLPRT_PRC1023H(hw
->port
),
1047 I40E_GLPRT_PRC1023L(hw
->port
),
1048 pf
->stat_offsets_loaded
,
1049 &osd
->rx_size_1023
, &nsd
->rx_size_1023
);
1050 i40e_stat_update48(hw
, I40E_GLPRT_PRC1522H(hw
->port
),
1051 I40E_GLPRT_PRC1522L(hw
->port
),
1052 pf
->stat_offsets_loaded
,
1053 &osd
->rx_size_1522
, &nsd
->rx_size_1522
);
1054 i40e_stat_update48(hw
, I40E_GLPRT_PRC9522H(hw
->port
),
1055 I40E_GLPRT_PRC9522L(hw
->port
),
1056 pf
->stat_offsets_loaded
,
1057 &osd
->rx_size_big
, &nsd
->rx_size_big
);
1059 i40e_stat_update48(hw
, I40E_GLPRT_PTC64H(hw
->port
),
1060 I40E_GLPRT_PTC64L(hw
->port
),
1061 pf
->stat_offsets_loaded
,
1062 &osd
->tx_size_64
, &nsd
->tx_size_64
);
1063 i40e_stat_update48(hw
, I40E_GLPRT_PTC127H(hw
->port
),
1064 I40E_GLPRT_PTC127L(hw
->port
),
1065 pf
->stat_offsets_loaded
,
1066 &osd
->tx_size_127
, &nsd
->tx_size_127
);
1067 i40e_stat_update48(hw
, I40E_GLPRT_PTC255H(hw
->port
),
1068 I40E_GLPRT_PTC255L(hw
->port
),
1069 pf
->stat_offsets_loaded
,
1070 &osd
->tx_size_255
, &nsd
->tx_size_255
);
1071 i40e_stat_update48(hw
, I40E_GLPRT_PTC511H(hw
->port
),
1072 I40E_GLPRT_PTC511L(hw
->port
),
1073 pf
->stat_offsets_loaded
,
1074 &osd
->tx_size_511
, &nsd
->tx_size_511
);
1075 i40e_stat_update48(hw
, I40E_GLPRT_PTC1023H(hw
->port
),
1076 I40E_GLPRT_PTC1023L(hw
->port
),
1077 pf
->stat_offsets_loaded
,
1078 &osd
->tx_size_1023
, &nsd
->tx_size_1023
);
1079 i40e_stat_update48(hw
, I40E_GLPRT_PTC1522H(hw
->port
),
1080 I40E_GLPRT_PTC1522L(hw
->port
),
1081 pf
->stat_offsets_loaded
,
1082 &osd
->tx_size_1522
, &nsd
->tx_size_1522
);
1083 i40e_stat_update48(hw
, I40E_GLPRT_PTC9522H(hw
->port
),
1084 I40E_GLPRT_PTC9522L(hw
->port
),
1085 pf
->stat_offsets_loaded
,
1086 &osd
->tx_size_big
, &nsd
->tx_size_big
);
1088 i40e_stat_update32(hw
, I40E_GLPRT_RUC(hw
->port
),
1089 pf
->stat_offsets_loaded
,
1090 &osd
->rx_undersize
, &nsd
->rx_undersize
);
1091 i40e_stat_update32(hw
, I40E_GLPRT_RFC(hw
->port
),
1092 pf
->stat_offsets_loaded
,
1093 &osd
->rx_fragments
, &nsd
->rx_fragments
);
1094 i40e_stat_update32(hw
, I40E_GLPRT_ROC(hw
->port
),
1095 pf
->stat_offsets_loaded
,
1096 &osd
->rx_oversize
, &nsd
->rx_oversize
);
1097 i40e_stat_update32(hw
, I40E_GLPRT_RJC(hw
->port
),
1098 pf
->stat_offsets_loaded
,
1099 &osd
->rx_jabber
, &nsd
->rx_jabber
);
1102 i40e_stat_update32(hw
,
1103 I40E_GLQF_PCNT(I40E_FD_ATR_STAT_IDX(pf
->hw
.pf_id
)),
1104 pf
->stat_offsets_loaded
,
1105 &osd
->fd_atr_match
, &nsd
->fd_atr_match
);
1106 i40e_stat_update32(hw
,
1107 I40E_GLQF_PCNT(I40E_FD_SB_STAT_IDX(pf
->hw
.pf_id
)),
1108 pf
->stat_offsets_loaded
,
1109 &osd
->fd_sb_match
, &nsd
->fd_sb_match
);
1110 i40e_stat_update32(hw
,
1111 I40E_GLQF_PCNT(I40E_FD_ATR_TUNNEL_STAT_IDX(pf
->hw
.pf_id
)),
1112 pf
->stat_offsets_loaded
,
1113 &osd
->fd_atr_tunnel_match
, &nsd
->fd_atr_tunnel_match
);
1115 val
= rd32(hw
, I40E_PRTPM_EEE_STAT
);
1116 nsd
->tx_lpi_status
=
1117 (val
& I40E_PRTPM_EEE_STAT_TX_LPI_STATUS_MASK
) >>
1118 I40E_PRTPM_EEE_STAT_TX_LPI_STATUS_SHIFT
;
1119 nsd
->rx_lpi_status
=
1120 (val
& I40E_PRTPM_EEE_STAT_RX_LPI_STATUS_MASK
) >>
1121 I40E_PRTPM_EEE_STAT_RX_LPI_STATUS_SHIFT
;
1122 i40e_stat_update32(hw
, I40E_PRTPM_TLPIC
,
1123 pf
->stat_offsets_loaded
,
1124 &osd
->tx_lpi_count
, &nsd
->tx_lpi_count
);
1125 i40e_stat_update32(hw
, I40E_PRTPM_RLPIC
,
1126 pf
->stat_offsets_loaded
,
1127 &osd
->rx_lpi_count
, &nsd
->rx_lpi_count
);
1129 if (pf
->flags
& I40E_FLAG_FD_SB_ENABLED
&&
1130 !(pf
->auto_disable_flags
& I40E_FLAG_FD_SB_ENABLED
))
1131 nsd
->fd_sb_status
= true;
1133 nsd
->fd_sb_status
= false;
1135 if (pf
->flags
& I40E_FLAG_FD_ATR_ENABLED
&&
1136 !(pf
->auto_disable_flags
& I40E_FLAG_FD_ATR_ENABLED
))
1137 nsd
->fd_atr_status
= true;
1139 nsd
->fd_atr_status
= false;
1141 pf
->stat_offsets_loaded
= true;
1145 * i40e_update_stats - Update the various statistics counters.
1146 * @vsi: the VSI to be updated
1148 * Update the various stats for this VSI and its related entities.
1150 void i40e_update_stats(struct i40e_vsi
*vsi
)
1152 struct i40e_pf
*pf
= vsi
->back
;
1154 if (vsi
== pf
->vsi
[pf
->lan_vsi
])
1155 i40e_update_pf_stats(pf
);
1157 i40e_update_vsi_stats(vsi
);
1159 i40e_update_fcoe_stats(vsi
);
1164 * i40e_find_filter - Search VSI filter list for specific mac/vlan filter
1165 * @vsi: the VSI to be searched
1166 * @macaddr: the MAC address
1168 * @is_vf: make sure its a VF filter, else doesn't matter
1169 * @is_netdev: make sure its a netdev filter, else doesn't matter
1171 * Returns ptr to the filter object or NULL
1173 static struct i40e_mac_filter
*i40e_find_filter(struct i40e_vsi
*vsi
,
1174 u8
*macaddr
, s16 vlan
,
1175 bool is_vf
, bool is_netdev
)
1177 struct i40e_mac_filter
*f
;
1179 if (!vsi
|| !macaddr
)
1182 list_for_each_entry(f
, &vsi
->mac_filter_list
, list
) {
1183 if ((ether_addr_equal(macaddr
, f
->macaddr
)) &&
1184 (vlan
== f
->vlan
) &&
1185 (!is_vf
|| f
->is_vf
) &&
1186 (!is_netdev
|| f
->is_netdev
))
1193 * i40e_find_mac - Find a mac addr in the macvlan filters list
1194 * @vsi: the VSI to be searched
1195 * @macaddr: the MAC address we are searching for
1196 * @is_vf: make sure its a VF filter, else doesn't matter
1197 * @is_netdev: make sure its a netdev filter, else doesn't matter
1199 * Returns the first filter with the provided MAC address or NULL if
1200 * MAC address was not found
1202 struct i40e_mac_filter
*i40e_find_mac(struct i40e_vsi
*vsi
, u8
*macaddr
,
1203 bool is_vf
, bool is_netdev
)
1205 struct i40e_mac_filter
*f
;
1207 if (!vsi
|| !macaddr
)
1210 list_for_each_entry(f
, &vsi
->mac_filter_list
, list
) {
1211 if ((ether_addr_equal(macaddr
, f
->macaddr
)) &&
1212 (!is_vf
|| f
->is_vf
) &&
1213 (!is_netdev
|| f
->is_netdev
))
1220 * i40e_is_vsi_in_vlan - Check if VSI is in vlan mode
1221 * @vsi: the VSI to be searched
1223 * Returns true if VSI is in vlan mode or false otherwise
1225 bool i40e_is_vsi_in_vlan(struct i40e_vsi
*vsi
)
1227 struct i40e_mac_filter
*f
;
1229 /* Only -1 for all the filters denotes not in vlan mode
1230 * so we have to go through all the list in order to make sure
1232 list_for_each_entry(f
, &vsi
->mac_filter_list
, list
) {
1233 if (f
->vlan
>= 0 || vsi
->info
.pvid
)
1241 * i40e_put_mac_in_vlan - Make macvlan filters from macaddrs and vlans
1242 * @vsi: the VSI to be searched
1243 * @macaddr: the mac address to be filtered
1244 * @is_vf: true if it is a VF
1245 * @is_netdev: true if it is a netdev
1247 * Goes through all the macvlan filters and adds a
1248 * macvlan filter for each unique vlan that already exists
1250 * Returns first filter found on success, else NULL
1252 struct i40e_mac_filter
*i40e_put_mac_in_vlan(struct i40e_vsi
*vsi
, u8
*macaddr
,
1253 bool is_vf
, bool is_netdev
)
1255 struct i40e_mac_filter
*f
;
1257 list_for_each_entry(f
, &vsi
->mac_filter_list
, list
) {
1259 f
->vlan
= le16_to_cpu(vsi
->info
.pvid
);
1260 if (!i40e_find_filter(vsi
, macaddr
, f
->vlan
,
1261 is_vf
, is_netdev
)) {
1262 if (!i40e_add_filter(vsi
, macaddr
, f
->vlan
,
1268 return list_first_entry_or_null(&vsi
->mac_filter_list
,
1269 struct i40e_mac_filter
, list
);
1273 * i40e_del_mac_all_vlan - Remove a MAC filter from all VLANS
1274 * @vsi: the VSI to be searched
1275 * @macaddr: the mac address to be removed
1276 * @is_vf: true if it is a VF
1277 * @is_netdev: true if it is a netdev
1279 * Removes a given MAC address from a VSI, regardless of VLAN
1281 * Returns 0 for success, or error
1283 int i40e_del_mac_all_vlan(struct i40e_vsi
*vsi
, u8
*macaddr
,
1284 bool is_vf
, bool is_netdev
)
1286 struct i40e_mac_filter
*f
= NULL
;
1289 WARN(!spin_is_locked(&vsi
->mac_filter_list_lock
),
1290 "Missing mac_filter_list_lock\n");
1291 list_for_each_entry(f
, &vsi
->mac_filter_list
, list
) {
1292 if ((ether_addr_equal(macaddr
, f
->macaddr
)) &&
1293 (is_vf
== f
->is_vf
) &&
1294 (is_netdev
== f
->is_netdev
)) {
1301 vsi
->flags
|= I40E_VSI_FLAG_FILTER_CHANGED
;
1302 vsi
->back
->flags
|= I40E_FLAG_FILTER_SYNC
;
1309 * i40e_rm_default_mac_filter - Remove the default MAC filter set by NVM
1310 * @vsi: the PF Main VSI - inappropriate for any other VSI
1311 * @macaddr: the MAC address
1313 * Some older firmware configurations set up a default promiscuous VLAN
1314 * filter that needs to be removed.
1316 static int i40e_rm_default_mac_filter(struct i40e_vsi
*vsi
, u8
*macaddr
)
1318 struct i40e_aqc_remove_macvlan_element_data element
;
1319 struct i40e_pf
*pf
= vsi
->back
;
1322 /* Only appropriate for the PF main VSI */
1323 if (vsi
->type
!= I40E_VSI_MAIN
)
1326 memset(&element
, 0, sizeof(element
));
1327 ether_addr_copy(element
.mac_addr
, macaddr
);
1328 element
.vlan_tag
= 0;
1329 element
.flags
= I40E_AQC_MACVLAN_DEL_PERFECT_MATCH
|
1330 I40E_AQC_MACVLAN_DEL_IGNORE_VLAN
;
1331 ret
= i40e_aq_remove_macvlan(&pf
->hw
, vsi
->seid
, &element
, 1, NULL
);
1339 * i40e_add_filter - Add a mac/vlan filter to the VSI
1340 * @vsi: the VSI to be searched
1341 * @macaddr: the MAC address
1343 * @is_vf: make sure its a VF filter, else doesn't matter
1344 * @is_netdev: make sure its a netdev filter, else doesn't matter
1346 * Returns ptr to the filter object or NULL when no memory available.
1348 * NOTE: This function is expected to be called with mac_filter_list_lock
1351 struct i40e_mac_filter
*i40e_add_filter(struct i40e_vsi
*vsi
,
1352 u8
*macaddr
, s16 vlan
,
1353 bool is_vf
, bool is_netdev
)
1355 struct i40e_mac_filter
*f
;
1357 if (!vsi
|| !macaddr
)
1360 f
= i40e_find_filter(vsi
, macaddr
, vlan
, is_vf
, is_netdev
);
1362 f
= kzalloc(sizeof(*f
), GFP_ATOMIC
);
1364 goto add_filter_out
;
1366 ether_addr_copy(f
->macaddr
, macaddr
);
1370 INIT_LIST_HEAD(&f
->list
);
1371 list_add(&f
->list
, &vsi
->mac_filter_list
);
1374 /* increment counter and add a new flag if needed */
1380 } else if (is_netdev
) {
1381 if (!f
->is_netdev
) {
1382 f
->is_netdev
= true;
1389 /* changed tells sync_filters_subtask to
1390 * push the filter down to the firmware
1393 vsi
->flags
|= I40E_VSI_FLAG_FILTER_CHANGED
;
1394 vsi
->back
->flags
|= I40E_FLAG_FILTER_SYNC
;
1402 * i40e_del_filter - Remove a mac/vlan filter from the VSI
1403 * @vsi: the VSI to be searched
1404 * @macaddr: the MAC address
1406 * @is_vf: make sure it's a VF filter, else doesn't matter
1407 * @is_netdev: make sure it's a netdev filter, else doesn't matter
1409 * NOTE: This function is expected to be called with mac_filter_list_lock
1412 void i40e_del_filter(struct i40e_vsi
*vsi
,
1413 u8
*macaddr
, s16 vlan
,
1414 bool is_vf
, bool is_netdev
)
1416 struct i40e_mac_filter
*f
;
1418 if (!vsi
|| !macaddr
)
1421 f
= i40e_find_filter(vsi
, macaddr
, vlan
, is_vf
, is_netdev
);
1422 if (!f
|| f
->counter
== 0)
1430 } else if (is_netdev
) {
1432 f
->is_netdev
= false;
1436 /* make sure we don't remove a filter in use by VF or netdev */
1439 min_f
+= (f
->is_vf
? 1 : 0);
1440 min_f
+= (f
->is_netdev
? 1 : 0);
1442 if (f
->counter
> min_f
)
1446 /* counter == 0 tells sync_filters_subtask to
1447 * remove the filter from the firmware's list
1449 if (f
->counter
== 0) {
1451 vsi
->flags
|= I40E_VSI_FLAG_FILTER_CHANGED
;
1452 vsi
->back
->flags
|= I40E_FLAG_FILTER_SYNC
;
1457 * i40e_set_mac - NDO callback to set mac address
1458 * @netdev: network interface device structure
1459 * @p: pointer to an address structure
1461 * Returns 0 on success, negative on failure
1464 int i40e_set_mac(struct net_device
*netdev
, void *p
)
1466 static int i40e_set_mac(struct net_device
*netdev
, void *p
)
1469 struct i40e_netdev_priv
*np
= netdev_priv(netdev
);
1470 struct i40e_vsi
*vsi
= np
->vsi
;
1471 struct i40e_pf
*pf
= vsi
->back
;
1472 struct i40e_hw
*hw
= &pf
->hw
;
1473 struct sockaddr
*addr
= p
;
1474 struct i40e_mac_filter
*f
;
1476 if (!is_valid_ether_addr(addr
->sa_data
))
1477 return -EADDRNOTAVAIL
;
1479 if (ether_addr_equal(netdev
->dev_addr
, addr
->sa_data
)) {
1480 netdev_info(netdev
, "already using mac address %pM\n",
1485 if (test_bit(__I40E_DOWN
, &vsi
->back
->state
) ||
1486 test_bit(__I40E_RESET_RECOVERY_PENDING
, &vsi
->back
->state
))
1487 return -EADDRNOTAVAIL
;
1489 if (ether_addr_equal(hw
->mac
.addr
, addr
->sa_data
))
1490 netdev_info(netdev
, "returning to hw mac address %pM\n",
1493 netdev_info(netdev
, "set new mac address %pM\n", addr
->sa_data
);
1495 if (vsi
->type
== I40E_VSI_MAIN
) {
1498 ret
= i40e_aq_mac_address_write(&vsi
->back
->hw
,
1499 I40E_AQC_WRITE_TYPE_LAA_WOL
,
1500 addr
->sa_data
, NULL
);
1503 "Addr change for Main VSI failed: %d\n",
1505 return -EADDRNOTAVAIL
;
1509 if (ether_addr_equal(netdev
->dev_addr
, hw
->mac
.addr
)) {
1510 struct i40e_aqc_remove_macvlan_element_data element
;
1512 memset(&element
, 0, sizeof(element
));
1513 ether_addr_copy(element
.mac_addr
, netdev
->dev_addr
);
1514 element
.flags
= I40E_AQC_MACVLAN_DEL_PERFECT_MATCH
;
1515 i40e_aq_remove_macvlan(&pf
->hw
, vsi
->seid
, &element
, 1, NULL
);
1517 spin_lock_bh(&vsi
->mac_filter_list_lock
);
1518 i40e_del_filter(vsi
, netdev
->dev_addr
, I40E_VLAN_ANY
,
1520 spin_unlock_bh(&vsi
->mac_filter_list_lock
);
1523 if (ether_addr_equal(addr
->sa_data
, hw
->mac
.addr
)) {
1524 struct i40e_aqc_add_macvlan_element_data element
;
1526 memset(&element
, 0, sizeof(element
));
1527 ether_addr_copy(element
.mac_addr
, hw
->mac
.addr
);
1528 element
.flags
= cpu_to_le16(I40E_AQC_MACVLAN_ADD_PERFECT_MATCH
);
1529 i40e_aq_add_macvlan(&pf
->hw
, vsi
->seid
, &element
, 1, NULL
);
1531 spin_lock_bh(&vsi
->mac_filter_list_lock
);
1532 f
= i40e_add_filter(vsi
, addr
->sa_data
, I40E_VLAN_ANY
,
1536 spin_unlock_bh(&vsi
->mac_filter_list_lock
);
1539 ether_addr_copy(netdev
->dev_addr
, addr
->sa_data
);
1541 return i40e_sync_vsi_filters(vsi
);
1545 * i40e_vsi_setup_queue_map - Setup a VSI queue map based on enabled_tc
1546 * @vsi: the VSI being setup
1547 * @ctxt: VSI context structure
1548 * @enabled_tc: Enabled TCs bitmap
1549 * @is_add: True if called before Add VSI
1551 * Setup VSI queue mapping for enabled traffic classes.
1554 void i40e_vsi_setup_queue_map(struct i40e_vsi
*vsi
,
1555 struct i40e_vsi_context
*ctxt
,
1559 static void i40e_vsi_setup_queue_map(struct i40e_vsi
*vsi
,
1560 struct i40e_vsi_context
*ctxt
,
1565 struct i40e_pf
*pf
= vsi
->back
;
1575 sections
= I40E_AQ_VSI_PROP_QUEUE_MAP_VALID
;
1578 if (enabled_tc
&& (vsi
->back
->flags
& I40E_FLAG_DCB_ENABLED
)) {
1579 /* Find numtc from enabled TC bitmap */
1580 for (i
= 0; i
< I40E_MAX_TRAFFIC_CLASS
; i
++) {
1581 if (enabled_tc
& BIT(i
)) /* TC is enabled */
1585 dev_warn(&pf
->pdev
->dev
, "DCB is enabled but no TC enabled, forcing TC0\n");
1589 /* At least TC0 is enabled in case of non-DCB case */
1593 vsi
->tc_config
.numtc
= numtc
;
1594 vsi
->tc_config
.enabled_tc
= enabled_tc
? enabled_tc
: 1;
1595 /* Number of queues per enabled TC */
1596 /* In MFP case we can have a much lower count of MSIx
1597 * vectors available and so we need to lower the used
1600 if (pf
->flags
& I40E_FLAG_MSIX_ENABLED
)
1601 qcount
= min_t(int, vsi
->alloc_queue_pairs
, pf
->num_lan_msix
);
1603 qcount
= vsi
->alloc_queue_pairs
;
1604 num_tc_qps
= qcount
/ numtc
;
1605 num_tc_qps
= min_t(int, num_tc_qps
, i40e_pf_get_max_q_per_tc(pf
));
1607 /* Setup queue offset/count for all TCs for given VSI */
1608 for (i
= 0; i
< I40E_MAX_TRAFFIC_CLASS
; i
++) {
1609 /* See if the given TC is enabled for the given VSI */
1610 if (vsi
->tc_config
.enabled_tc
& BIT(i
)) {
1614 switch (vsi
->type
) {
1616 qcount
= min_t(int, pf
->alloc_rss_size
,
1621 qcount
= num_tc_qps
;
1625 case I40E_VSI_SRIOV
:
1626 case I40E_VSI_VMDQ2
:
1628 qcount
= num_tc_qps
;
1632 vsi
->tc_config
.tc_info
[i
].qoffset
= offset
;
1633 vsi
->tc_config
.tc_info
[i
].qcount
= qcount
;
1635 /* find the next higher power-of-2 of num queue pairs */
1638 while (num_qps
&& (BIT_ULL(pow
) < qcount
)) {
1643 vsi
->tc_config
.tc_info
[i
].netdev_tc
= netdev_tc
++;
1645 (offset
<< I40E_AQ_VSI_TC_QUE_OFFSET_SHIFT
) |
1646 (pow
<< I40E_AQ_VSI_TC_QUE_NUMBER_SHIFT
);
1650 /* TC is not enabled so set the offset to
1651 * default queue and allocate one queue
1654 vsi
->tc_config
.tc_info
[i
].qoffset
= 0;
1655 vsi
->tc_config
.tc_info
[i
].qcount
= 1;
1656 vsi
->tc_config
.tc_info
[i
].netdev_tc
= 0;
1660 ctxt
->info
.tc_mapping
[i
] = cpu_to_le16(qmap
);
1663 /* Set actual Tx/Rx queue pairs */
1664 vsi
->num_queue_pairs
= offset
;
1665 if ((vsi
->type
== I40E_VSI_MAIN
) && (numtc
== 1)) {
1666 if (vsi
->req_queue_pairs
> 0)
1667 vsi
->num_queue_pairs
= vsi
->req_queue_pairs
;
1668 else if (pf
->flags
& I40E_FLAG_MSIX_ENABLED
)
1669 vsi
->num_queue_pairs
= pf
->num_lan_msix
;
1672 /* Scheduler section valid can only be set for ADD VSI */
1674 sections
|= I40E_AQ_VSI_PROP_SCHED_VALID
;
1676 ctxt
->info
.up_enable_bits
= enabled_tc
;
1678 if (vsi
->type
== I40E_VSI_SRIOV
) {
1679 ctxt
->info
.mapping_flags
|=
1680 cpu_to_le16(I40E_AQ_VSI_QUE_MAP_NONCONTIG
);
1681 for (i
= 0; i
< vsi
->num_queue_pairs
; i
++)
1682 ctxt
->info
.queue_mapping
[i
] =
1683 cpu_to_le16(vsi
->base_queue
+ i
);
1685 ctxt
->info
.mapping_flags
|=
1686 cpu_to_le16(I40E_AQ_VSI_QUE_MAP_CONTIG
);
1687 ctxt
->info
.queue_mapping
[0] = cpu_to_le16(vsi
->base_queue
);
1689 ctxt
->info
.valid_sections
|= cpu_to_le16(sections
);
1693 * i40e_set_rx_mode - NDO callback to set the netdev filters
1694 * @netdev: network interface device structure
1697 void i40e_set_rx_mode(struct net_device
*netdev
)
1699 static void i40e_set_rx_mode(struct net_device
*netdev
)
1702 struct i40e_netdev_priv
*np
= netdev_priv(netdev
);
1703 struct i40e_mac_filter
*f
, *ftmp
;
1704 struct i40e_vsi
*vsi
= np
->vsi
;
1705 struct netdev_hw_addr
*uca
;
1706 struct netdev_hw_addr
*mca
;
1707 struct netdev_hw_addr
*ha
;
1709 spin_lock_bh(&vsi
->mac_filter_list_lock
);
1711 /* add addr if not already in the filter list */
1712 netdev_for_each_uc_addr(uca
, netdev
) {
1713 if (!i40e_find_mac(vsi
, uca
->addr
, false, true)) {
1714 if (i40e_is_vsi_in_vlan(vsi
))
1715 i40e_put_mac_in_vlan(vsi
, uca
->addr
,
1718 i40e_add_filter(vsi
, uca
->addr
, I40E_VLAN_ANY
,
1723 netdev_for_each_mc_addr(mca
, netdev
) {
1724 if (!i40e_find_mac(vsi
, mca
->addr
, false, true)) {
1725 if (i40e_is_vsi_in_vlan(vsi
))
1726 i40e_put_mac_in_vlan(vsi
, mca
->addr
,
1729 i40e_add_filter(vsi
, mca
->addr
, I40E_VLAN_ANY
,
1734 /* remove filter if not in netdev list */
1735 list_for_each_entry_safe(f
, ftmp
, &vsi
->mac_filter_list
, list
) {
1740 netdev_for_each_mc_addr(mca
, netdev
)
1741 if (ether_addr_equal(mca
->addr
, f
->macaddr
))
1742 goto bottom_of_search_loop
;
1744 netdev_for_each_uc_addr(uca
, netdev
)
1745 if (ether_addr_equal(uca
->addr
, f
->macaddr
))
1746 goto bottom_of_search_loop
;
1748 for_each_dev_addr(netdev
, ha
)
1749 if (ether_addr_equal(ha
->addr
, f
->macaddr
))
1750 goto bottom_of_search_loop
;
1752 /* f->macaddr wasn't found in uc, mc, or ha list so delete it */
1753 i40e_del_filter(vsi
, f
->macaddr
, I40E_VLAN_ANY
, false, true);
1755 bottom_of_search_loop
:
1758 spin_unlock_bh(&vsi
->mac_filter_list_lock
);
1760 /* check for other flag changes */
1761 if (vsi
->current_netdev_flags
!= vsi
->netdev
->flags
) {
1762 vsi
->flags
|= I40E_VSI_FLAG_FILTER_CHANGED
;
1763 vsi
->back
->flags
|= I40E_FLAG_FILTER_SYNC
;
1768 * i40e_mac_filter_entry_clone - Clones a MAC filter entry
1769 * @src: source MAC filter entry to be clones
1771 * Returns the pointer to newly cloned MAC filter entry or NULL
1774 static struct i40e_mac_filter
*i40e_mac_filter_entry_clone(
1775 struct i40e_mac_filter
*src
)
1777 struct i40e_mac_filter
*f
;
1779 f
= kzalloc(sizeof(*f
), GFP_ATOMIC
);
1784 INIT_LIST_HEAD(&f
->list
);
1790 * i40e_undo_del_filter_entries - Undo the changes made to MAC filter entries
1791 * @vsi: pointer to vsi struct
1792 * @from: Pointer to list which contains MAC filter entries - changes to
1793 * those entries needs to be undone.
1795 * MAC filter entries from list were slated to be removed from device.
1797 static void i40e_undo_del_filter_entries(struct i40e_vsi
*vsi
,
1798 struct list_head
*from
)
1800 struct i40e_mac_filter
*f
, *ftmp
;
1802 list_for_each_entry_safe(f
, ftmp
, from
, list
) {
1804 /* Move the element back into MAC filter list*/
1805 list_move_tail(&f
->list
, &vsi
->mac_filter_list
);
1810 * i40e_undo_add_filter_entries - Undo the changes made to MAC filter entries
1811 * @vsi: pointer to vsi struct
1813 * MAC filter entries from list were slated to be added from device.
1815 static void i40e_undo_add_filter_entries(struct i40e_vsi
*vsi
)
1817 struct i40e_mac_filter
*f
, *ftmp
;
1819 list_for_each_entry_safe(f
, ftmp
, &vsi
->mac_filter_list
, list
) {
1820 if (!f
->changed
&& f
->counter
)
1826 * i40e_cleanup_add_list - Deletes the element from add list and release
1828 * @add_list: Pointer to list which contains MAC filter entries
1830 static void i40e_cleanup_add_list(struct list_head
*add_list
)
1832 struct i40e_mac_filter
*f
, *ftmp
;
1834 list_for_each_entry_safe(f
, ftmp
, add_list
, list
) {
1841 * i40e_sync_vsi_filters - Update the VSI filter list to the HW
1842 * @vsi: ptr to the VSI
1844 * Push any outstanding VSI filter changes through the AdminQ.
1846 * Returns 0 or error value
1848 int i40e_sync_vsi_filters(struct i40e_vsi
*vsi
)
1850 struct list_head tmp_del_list
, tmp_add_list
;
1851 struct i40e_mac_filter
*f
, *ftmp
, *fclone
;
1852 bool promisc_forced_on
= false;
1853 bool add_happened
= false;
1854 int filter_list_len
= 0;
1855 u32 changed_flags
= 0;
1856 i40e_status aq_ret
= 0;
1857 bool err_cond
= false;
1865 /* empty array typed pointers, kcalloc later */
1866 struct i40e_aqc_add_macvlan_element_data
*add_list
;
1867 struct i40e_aqc_remove_macvlan_element_data
*del_list
;
1869 while (test_and_set_bit(__I40E_CONFIG_BUSY
, &vsi
->state
))
1870 usleep_range(1000, 2000);
1874 changed_flags
= vsi
->current_netdev_flags
^ vsi
->netdev
->flags
;
1875 vsi
->current_netdev_flags
= vsi
->netdev
->flags
;
1878 INIT_LIST_HEAD(&tmp_del_list
);
1879 INIT_LIST_HEAD(&tmp_add_list
);
1881 if (vsi
->flags
& I40E_VSI_FLAG_FILTER_CHANGED
) {
1882 vsi
->flags
&= ~I40E_VSI_FLAG_FILTER_CHANGED
;
1884 spin_lock_bh(&vsi
->mac_filter_list_lock
);
1885 list_for_each_entry_safe(f
, ftmp
, &vsi
->mac_filter_list
, list
) {
1889 if (f
->counter
!= 0)
1893 /* Move the element into temporary del_list */
1894 list_move_tail(&f
->list
, &tmp_del_list
);
1897 list_for_each_entry_safe(f
, ftmp
, &vsi
->mac_filter_list
, list
) {
1901 if (f
->counter
== 0)
1905 /* Clone MAC filter entry and add into temporary list */
1906 fclone
= i40e_mac_filter_entry_clone(f
);
1911 list_add_tail(&fclone
->list
, &tmp_add_list
);
1914 /* if failed to clone MAC filter entry - undo */
1916 i40e_undo_del_filter_entries(vsi
, &tmp_del_list
);
1917 i40e_undo_add_filter_entries(vsi
);
1919 spin_unlock_bh(&vsi
->mac_filter_list_lock
);
1922 i40e_cleanup_add_list(&tmp_add_list
);
1928 /* Now process 'del_list' outside the lock */
1929 if (!list_empty(&tmp_del_list
)) {
1932 filter_list_len
= pf
->hw
.aq
.asq_buf_size
/
1933 sizeof(struct i40e_aqc_remove_macvlan_element_data
);
1934 del_list_size
= filter_list_len
*
1935 sizeof(struct i40e_aqc_remove_macvlan_element_data
);
1936 del_list
= kzalloc(del_list_size
, GFP_KERNEL
);
1938 i40e_cleanup_add_list(&tmp_add_list
);
1940 /* Undo VSI's MAC filter entry element updates */
1941 spin_lock_bh(&vsi
->mac_filter_list_lock
);
1942 i40e_undo_del_filter_entries(vsi
, &tmp_del_list
);
1943 i40e_undo_add_filter_entries(vsi
);
1944 spin_unlock_bh(&vsi
->mac_filter_list_lock
);
1949 list_for_each_entry_safe(f
, ftmp
, &tmp_del_list
, list
) {
1952 /* add to delete list */
1953 ether_addr_copy(del_list
[num_del
].mac_addr
, f
->macaddr
);
1954 del_list
[num_del
].vlan_tag
=
1955 cpu_to_le16((u16
)(f
->vlan
==
1956 I40E_VLAN_ANY
? 0 : f
->vlan
));
1958 cmd_flags
|= I40E_AQC_MACVLAN_DEL_PERFECT_MATCH
;
1959 del_list
[num_del
].flags
= cmd_flags
;
1962 /* flush a full buffer */
1963 if (num_del
== filter_list_len
) {
1964 aq_ret
= i40e_aq_remove_macvlan(&pf
->hw
,
1969 aq_err
= pf
->hw
.aq
.asq_last_status
;
1971 memset(del_list
, 0, del_list_size
);
1973 if (aq_ret
&& aq_err
!= I40E_AQ_RC_ENOENT
) {
1975 dev_err(&pf
->pdev
->dev
,
1976 "ignoring delete macvlan error, err %s, aq_err %s while flushing a full buffer\n",
1977 i40e_stat_str(&pf
->hw
, aq_ret
),
1978 i40e_aq_str(&pf
->hw
, aq_err
));
1981 /* Release memory for MAC filter entries which were
1982 * synced up with HW.
1989 aq_ret
= i40e_aq_remove_macvlan(&pf
->hw
, vsi
->seid
,
1992 aq_err
= pf
->hw
.aq
.asq_last_status
;
1995 if (aq_ret
&& aq_err
!= I40E_AQ_RC_ENOENT
)
1996 dev_info(&pf
->pdev
->dev
,
1997 "ignoring delete macvlan error, err %s aq_err %s\n",
1998 i40e_stat_str(&pf
->hw
, aq_ret
),
1999 i40e_aq_str(&pf
->hw
, aq_err
));
2006 if (!list_empty(&tmp_add_list
)) {
2009 /* do all the adds now */
2010 filter_list_len
= pf
->hw
.aq
.asq_buf_size
/
2011 sizeof(struct i40e_aqc_add_macvlan_element_data
),
2012 add_list_size
= filter_list_len
*
2013 sizeof(struct i40e_aqc_add_macvlan_element_data
);
2014 add_list
= kzalloc(add_list_size
, GFP_KERNEL
);
2016 /* Purge element from temporary lists */
2017 i40e_cleanup_add_list(&tmp_add_list
);
2019 /* Undo add filter entries from VSI MAC filter list */
2020 spin_lock_bh(&vsi
->mac_filter_list_lock
);
2021 i40e_undo_add_filter_entries(vsi
);
2022 spin_unlock_bh(&vsi
->mac_filter_list_lock
);
2027 list_for_each_entry_safe(f
, ftmp
, &tmp_add_list
, list
) {
2029 add_happened
= true;
2032 /* add to add array */
2033 ether_addr_copy(add_list
[num_add
].mac_addr
, f
->macaddr
);
2034 add_list
[num_add
].vlan_tag
=
2036 (u16
)(f
->vlan
== I40E_VLAN_ANY
? 0 : f
->vlan
));
2037 add_list
[num_add
].queue_number
= 0;
2039 cmd_flags
|= I40E_AQC_MACVLAN_ADD_PERFECT_MATCH
;
2040 add_list
[num_add
].flags
= cpu_to_le16(cmd_flags
);
2043 /* flush a full buffer */
2044 if (num_add
== filter_list_len
) {
2045 aq_ret
= i40e_aq_add_macvlan(&pf
->hw
, vsi
->seid
,
2048 aq_err
= pf
->hw
.aq
.asq_last_status
;
2053 memset(add_list
, 0, add_list_size
);
2055 /* Entries from tmp_add_list were cloned from MAC
2056 * filter list, hence clean those cloned entries
2063 aq_ret
= i40e_aq_add_macvlan(&pf
->hw
, vsi
->seid
,
2064 add_list
, num_add
, NULL
);
2065 aq_err
= pf
->hw
.aq
.asq_last_status
;
2071 if (add_happened
&& aq_ret
&& aq_err
!= I40E_AQ_RC_EINVAL
) {
2072 retval
= i40e_aq_rc_to_posix(aq_ret
, aq_err
);
2073 dev_info(&pf
->pdev
->dev
,
2074 "add filter failed, err %s aq_err %s\n",
2075 i40e_stat_str(&pf
->hw
, aq_ret
),
2076 i40e_aq_str(&pf
->hw
, aq_err
));
2077 if ((pf
->hw
.aq
.asq_last_status
== I40E_AQ_RC_ENOSPC
) &&
2078 !test_bit(__I40E_FILTER_OVERFLOW_PROMISC
,
2080 promisc_forced_on
= true;
2081 set_bit(__I40E_FILTER_OVERFLOW_PROMISC
,
2083 dev_info(&pf
->pdev
->dev
, "promiscuous mode forced on\n");
2088 /* check for changes in promiscuous modes */
2089 if (changed_flags
& IFF_ALLMULTI
) {
2090 bool cur_multipromisc
;
2092 cur_multipromisc
= !!(vsi
->current_netdev_flags
& IFF_ALLMULTI
);
2093 aq_ret
= i40e_aq_set_vsi_multicast_promiscuous(&vsi
->back
->hw
,
2098 retval
= i40e_aq_rc_to_posix(aq_ret
,
2099 pf
->hw
.aq
.asq_last_status
);
2100 dev_info(&pf
->pdev
->dev
,
2101 "set multi promisc failed, err %s aq_err %s\n",
2102 i40e_stat_str(&pf
->hw
, aq_ret
),
2103 i40e_aq_str(&pf
->hw
,
2104 pf
->hw
.aq
.asq_last_status
));
2107 if ((changed_flags
& IFF_PROMISC
) || promisc_forced_on
) {
2110 cur_promisc
= (!!(vsi
->current_netdev_flags
& IFF_PROMISC
) ||
2111 test_bit(__I40E_FILTER_OVERFLOW_PROMISC
,
2113 if (vsi
->type
== I40E_VSI_MAIN
&& pf
->lan_veb
!= I40E_NO_VEB
) {
2114 /* set defport ON for Main VSI instead of true promisc
2115 * this way we will get all unicast/multicast and VLAN
2116 * promisc behavior but will not get VF or VMDq traffic
2117 * replicated on the Main VSI.
2119 if (pf
->cur_promisc
!= cur_promisc
) {
2120 pf
->cur_promisc
= cur_promisc
;
2121 set_bit(__I40E_PF_RESET_REQUESTED
, &pf
->state
);
2124 aq_ret
= i40e_aq_set_vsi_unicast_promiscuous(
2130 i40e_aq_rc_to_posix(aq_ret
,
2131 pf
->hw
.aq
.asq_last_status
);
2132 dev_info(&pf
->pdev
->dev
,
2133 "set unicast promisc failed, err %d, aq_err %d\n",
2134 aq_ret
, pf
->hw
.aq
.asq_last_status
);
2136 aq_ret
= i40e_aq_set_vsi_multicast_promiscuous(
2142 i40e_aq_rc_to_posix(aq_ret
,
2143 pf
->hw
.aq
.asq_last_status
);
2144 dev_info(&pf
->pdev
->dev
,
2145 "set multicast promisc failed, err %d, aq_err %d\n",
2146 aq_ret
, pf
->hw
.aq
.asq_last_status
);
2149 aq_ret
= i40e_aq_set_vsi_broadcast(&vsi
->back
->hw
,
2153 retval
= i40e_aq_rc_to_posix(aq_ret
,
2154 pf
->hw
.aq
.asq_last_status
);
2155 dev_info(&pf
->pdev
->dev
,
2156 "set brdcast promisc failed, err %s, aq_err %s\n",
2157 i40e_stat_str(&pf
->hw
, aq_ret
),
2158 i40e_aq_str(&pf
->hw
,
2159 pf
->hw
.aq
.asq_last_status
));
2163 clear_bit(__I40E_CONFIG_BUSY
, &vsi
->state
);
2168 * i40e_sync_filters_subtask - Sync the VSI filter list with HW
2169 * @pf: board private structure
2171 static void i40e_sync_filters_subtask(struct i40e_pf
*pf
)
2175 if (!pf
|| !(pf
->flags
& I40E_FLAG_FILTER_SYNC
))
2177 pf
->flags
&= ~I40E_FLAG_FILTER_SYNC
;
2179 for (v
= 0; v
< pf
->num_alloc_vsi
; v
++) {
2181 (pf
->vsi
[v
]->flags
& I40E_VSI_FLAG_FILTER_CHANGED
)) {
2182 int ret
= i40e_sync_vsi_filters(pf
->vsi
[v
]);
2185 /* come back and try again later */
2186 pf
->flags
|= I40E_FLAG_FILTER_SYNC
;
2194 * i40e_change_mtu - NDO callback to change the Maximum Transfer Unit
2195 * @netdev: network interface device structure
2196 * @new_mtu: new value for maximum frame size
2198 * Returns 0 on success, negative on failure
2200 static int i40e_change_mtu(struct net_device
*netdev
, int new_mtu
)
2202 struct i40e_netdev_priv
*np
= netdev_priv(netdev
);
2203 int max_frame
= new_mtu
+ ETH_HLEN
+ ETH_FCS_LEN
+ VLAN_HLEN
;
2204 struct i40e_vsi
*vsi
= np
->vsi
;
2206 /* MTU < 68 is an error and causes problems on some kernels */
2207 if ((new_mtu
< 68) || (max_frame
> I40E_MAX_RXBUFFER
))
2210 netdev_info(netdev
, "changing MTU from %d to %d\n",
2211 netdev
->mtu
, new_mtu
);
2212 netdev
->mtu
= new_mtu
;
2213 if (netif_running(netdev
))
2214 i40e_vsi_reinit_locked(vsi
);
2220 * i40e_ioctl - Access the hwtstamp interface
2221 * @netdev: network interface device structure
2222 * @ifr: interface request data
2223 * @cmd: ioctl command
2225 int i40e_ioctl(struct net_device
*netdev
, struct ifreq
*ifr
, int cmd
)
2227 struct i40e_netdev_priv
*np
= netdev_priv(netdev
);
2228 struct i40e_pf
*pf
= np
->vsi
->back
;
2232 return i40e_ptp_get_ts_config(pf
, ifr
);
2234 return i40e_ptp_set_ts_config(pf
, ifr
);
2241 * i40e_vlan_stripping_enable - Turn on vlan stripping for the VSI
2242 * @vsi: the vsi being adjusted
2244 void i40e_vlan_stripping_enable(struct i40e_vsi
*vsi
)
2246 struct i40e_vsi_context ctxt
;
2249 if ((vsi
->info
.valid_sections
&
2250 cpu_to_le16(I40E_AQ_VSI_PROP_VLAN_VALID
)) &&
2251 ((vsi
->info
.port_vlan_flags
& I40E_AQ_VSI_PVLAN_MODE_MASK
) == 0))
2252 return; /* already enabled */
2254 vsi
->info
.valid_sections
= cpu_to_le16(I40E_AQ_VSI_PROP_VLAN_VALID
);
2255 vsi
->info
.port_vlan_flags
= I40E_AQ_VSI_PVLAN_MODE_ALL
|
2256 I40E_AQ_VSI_PVLAN_EMOD_STR_BOTH
;
2258 ctxt
.seid
= vsi
->seid
;
2259 ctxt
.info
= vsi
->info
;
2260 ret
= i40e_aq_update_vsi_params(&vsi
->back
->hw
, &ctxt
, NULL
);
2262 dev_info(&vsi
->back
->pdev
->dev
,
2263 "update vlan stripping failed, err %s aq_err %s\n",
2264 i40e_stat_str(&vsi
->back
->hw
, ret
),
2265 i40e_aq_str(&vsi
->back
->hw
,
2266 vsi
->back
->hw
.aq
.asq_last_status
));
2271 * i40e_vlan_stripping_disable - Turn off vlan stripping for the VSI
2272 * @vsi: the vsi being adjusted
2274 void i40e_vlan_stripping_disable(struct i40e_vsi
*vsi
)
2276 struct i40e_vsi_context ctxt
;
2279 if ((vsi
->info
.valid_sections
&
2280 cpu_to_le16(I40E_AQ_VSI_PROP_VLAN_VALID
)) &&
2281 ((vsi
->info
.port_vlan_flags
& I40E_AQ_VSI_PVLAN_EMOD_MASK
) ==
2282 I40E_AQ_VSI_PVLAN_EMOD_MASK
))
2283 return; /* already disabled */
2285 vsi
->info
.valid_sections
= cpu_to_le16(I40E_AQ_VSI_PROP_VLAN_VALID
);
2286 vsi
->info
.port_vlan_flags
= I40E_AQ_VSI_PVLAN_MODE_ALL
|
2287 I40E_AQ_VSI_PVLAN_EMOD_NOTHING
;
2289 ctxt
.seid
= vsi
->seid
;
2290 ctxt
.info
= vsi
->info
;
2291 ret
= i40e_aq_update_vsi_params(&vsi
->back
->hw
, &ctxt
, NULL
);
2293 dev_info(&vsi
->back
->pdev
->dev
,
2294 "update vlan stripping failed, err %s aq_err %s\n",
2295 i40e_stat_str(&vsi
->back
->hw
, ret
),
2296 i40e_aq_str(&vsi
->back
->hw
,
2297 vsi
->back
->hw
.aq
.asq_last_status
));
2302 * i40e_vlan_rx_register - Setup or shutdown vlan offload
2303 * @netdev: network interface to be adjusted
2304 * @features: netdev features to test if VLAN offload is enabled or not
2306 static void i40e_vlan_rx_register(struct net_device
*netdev
, u32 features
)
2308 struct i40e_netdev_priv
*np
= netdev_priv(netdev
);
2309 struct i40e_vsi
*vsi
= np
->vsi
;
2311 if (features
& NETIF_F_HW_VLAN_CTAG_RX
)
2312 i40e_vlan_stripping_enable(vsi
);
2314 i40e_vlan_stripping_disable(vsi
);
2318 * i40e_vsi_add_vlan - Add vsi membership for given vlan
2319 * @vsi: the vsi being configured
2320 * @vid: vlan id to be added (0 = untagged only , -1 = any)
2322 int i40e_vsi_add_vlan(struct i40e_vsi
*vsi
, s16 vid
)
2324 struct i40e_mac_filter
*f
, *add_f
;
2325 bool is_netdev
, is_vf
;
2327 is_vf
= (vsi
->type
== I40E_VSI_SRIOV
);
2328 is_netdev
= !!(vsi
->netdev
);
2330 /* Locked once because all functions invoked below iterates list*/
2331 spin_lock_bh(&vsi
->mac_filter_list_lock
);
2334 add_f
= i40e_add_filter(vsi
, vsi
->netdev
->dev_addr
, vid
,
2337 dev_info(&vsi
->back
->pdev
->dev
,
2338 "Could not add vlan filter %d for %pM\n",
2339 vid
, vsi
->netdev
->dev_addr
);
2340 spin_unlock_bh(&vsi
->mac_filter_list_lock
);
2345 list_for_each_entry(f
, &vsi
->mac_filter_list
, list
) {
2346 add_f
= i40e_add_filter(vsi
, f
->macaddr
, vid
, is_vf
, is_netdev
);
2348 dev_info(&vsi
->back
->pdev
->dev
,
2349 "Could not add vlan filter %d for %pM\n",
2351 spin_unlock_bh(&vsi
->mac_filter_list_lock
);
2356 /* Now if we add a vlan tag, make sure to check if it is the first
2357 * tag (i.e. a "tag" -1 does exist) and if so replace the -1 "tag"
2358 * with 0, so we now accept untagged and specified tagged traffic
2359 * (and not any taged and untagged)
2362 if (is_netdev
&& i40e_find_filter(vsi
, vsi
->netdev
->dev_addr
,
2364 is_vf
, is_netdev
)) {
2365 i40e_del_filter(vsi
, vsi
->netdev
->dev_addr
,
2366 I40E_VLAN_ANY
, is_vf
, is_netdev
);
2367 add_f
= i40e_add_filter(vsi
, vsi
->netdev
->dev_addr
, 0,
2370 dev_info(&vsi
->back
->pdev
->dev
,
2371 "Could not add filter 0 for %pM\n",
2372 vsi
->netdev
->dev_addr
);
2373 spin_unlock_bh(&vsi
->mac_filter_list_lock
);
2379 /* Do not assume that I40E_VLAN_ANY should be reset to VLAN 0 */
2380 if (vid
> 0 && !vsi
->info
.pvid
) {
2381 list_for_each_entry(f
, &vsi
->mac_filter_list
, list
) {
2382 if (!i40e_find_filter(vsi
, f
->macaddr
, I40E_VLAN_ANY
,
2385 i40e_del_filter(vsi
, f
->macaddr
, I40E_VLAN_ANY
,
2387 add_f
= i40e_add_filter(vsi
, f
->macaddr
,
2388 0, is_vf
, is_netdev
);
2390 dev_info(&vsi
->back
->pdev
->dev
,
2391 "Could not add filter 0 for %pM\n",
2393 spin_unlock_bh(&vsi
->mac_filter_list_lock
);
2399 spin_unlock_bh(&vsi
->mac_filter_list_lock
);
2401 /* schedule our worker thread which will take care of
2402 * applying the new filter changes
2404 i40e_service_event_schedule(vsi
->back
);
2409 * i40e_vsi_kill_vlan - Remove vsi membership for given vlan
2410 * @vsi: the vsi being configured
2411 * @vid: vlan id to be removed (0 = untagged only , -1 = any)
2413 * Return: 0 on success or negative otherwise
2415 int i40e_vsi_kill_vlan(struct i40e_vsi
*vsi
, s16 vid
)
2417 struct net_device
*netdev
= vsi
->netdev
;
2418 struct i40e_mac_filter
*f
, *add_f
;
2419 bool is_vf
, is_netdev
;
2420 int filter_count
= 0;
2422 is_vf
= (vsi
->type
== I40E_VSI_SRIOV
);
2423 is_netdev
= !!(netdev
);
2425 /* Locked once because all functions invoked below iterates list */
2426 spin_lock_bh(&vsi
->mac_filter_list_lock
);
2429 i40e_del_filter(vsi
, netdev
->dev_addr
, vid
, is_vf
, is_netdev
);
2431 list_for_each_entry(f
, &vsi
->mac_filter_list
, list
)
2432 i40e_del_filter(vsi
, f
->macaddr
, vid
, is_vf
, is_netdev
);
2434 /* go through all the filters for this VSI and if there is only
2435 * vid == 0 it means there are no other filters, so vid 0 must
2436 * be replaced with -1. This signifies that we should from now
2437 * on accept any traffic (with any tag present, or untagged)
2439 list_for_each_entry(f
, &vsi
->mac_filter_list
, list
) {
2442 ether_addr_equal(netdev
->dev_addr
, f
->macaddr
))
2450 if (!filter_count
&& is_netdev
) {
2451 i40e_del_filter(vsi
, netdev
->dev_addr
, 0, is_vf
, is_netdev
);
2452 f
= i40e_add_filter(vsi
, netdev
->dev_addr
, I40E_VLAN_ANY
,
2455 dev_info(&vsi
->back
->pdev
->dev
,
2456 "Could not add filter %d for %pM\n",
2457 I40E_VLAN_ANY
, netdev
->dev_addr
);
2458 spin_unlock_bh(&vsi
->mac_filter_list_lock
);
2463 if (!filter_count
) {
2464 list_for_each_entry(f
, &vsi
->mac_filter_list
, list
) {
2465 i40e_del_filter(vsi
, f
->macaddr
, 0, is_vf
, is_netdev
);
2466 add_f
= i40e_add_filter(vsi
, f
->macaddr
, I40E_VLAN_ANY
,
2469 dev_info(&vsi
->back
->pdev
->dev
,
2470 "Could not add filter %d for %pM\n",
2471 I40E_VLAN_ANY
, f
->macaddr
);
2472 spin_unlock_bh(&vsi
->mac_filter_list_lock
);
2478 spin_unlock_bh(&vsi
->mac_filter_list_lock
);
2480 /* schedule our worker thread which will take care of
2481 * applying the new filter changes
2483 i40e_service_event_schedule(vsi
->back
);
2488 * i40e_vlan_rx_add_vid - Add a vlan id filter to HW offload
2489 * @netdev: network interface to be adjusted
2490 * @vid: vlan id to be added
2492 * net_device_ops implementation for adding vlan ids
2495 int i40e_vlan_rx_add_vid(struct net_device
*netdev
,
2496 __always_unused __be16 proto
, u16 vid
)
2498 static int i40e_vlan_rx_add_vid(struct net_device
*netdev
,
2499 __always_unused __be16 proto
, u16 vid
)
2502 struct i40e_netdev_priv
*np
= netdev_priv(netdev
);
2503 struct i40e_vsi
*vsi
= np
->vsi
;
2509 netdev_info(netdev
, "adding %pM vid=%d\n", netdev
->dev_addr
, vid
);
2511 /* If the network stack called us with vid = 0 then
2512 * it is asking to receive priority tagged packets with
2513 * vlan id 0. Our HW receives them by default when configured
2514 * to receive untagged packets so there is no need to add an
2515 * extra filter for vlan 0 tagged packets.
2518 ret
= i40e_vsi_add_vlan(vsi
, vid
);
2520 if (!ret
&& (vid
< VLAN_N_VID
))
2521 set_bit(vid
, vsi
->active_vlans
);
2527 * i40e_vlan_rx_kill_vid - Remove a vlan id filter from HW offload
2528 * @netdev: network interface to be adjusted
2529 * @vid: vlan id to be removed
2531 * net_device_ops implementation for removing vlan ids
2534 int i40e_vlan_rx_kill_vid(struct net_device
*netdev
,
2535 __always_unused __be16 proto
, u16 vid
)
2537 static int i40e_vlan_rx_kill_vid(struct net_device
*netdev
,
2538 __always_unused __be16 proto
, u16 vid
)
2541 struct i40e_netdev_priv
*np
= netdev_priv(netdev
);
2542 struct i40e_vsi
*vsi
= np
->vsi
;
2544 netdev_info(netdev
, "removing %pM vid=%d\n", netdev
->dev_addr
, vid
);
2546 /* return code is ignored as there is nothing a user
2547 * can do about failure to remove and a log message was
2548 * already printed from the other function
2550 i40e_vsi_kill_vlan(vsi
, vid
);
2552 clear_bit(vid
, vsi
->active_vlans
);
2558 * i40e_restore_vlan - Reinstate vlans when vsi/netdev comes back up
2559 * @vsi: the vsi being brought back up
2561 static void i40e_restore_vlan(struct i40e_vsi
*vsi
)
2568 i40e_vlan_rx_register(vsi
->netdev
, vsi
->netdev
->features
);
2570 for_each_set_bit(vid
, vsi
->active_vlans
, VLAN_N_VID
)
2571 i40e_vlan_rx_add_vid(vsi
->netdev
, htons(ETH_P_8021Q
),
2576 * i40e_vsi_add_pvid - Add pvid for the VSI
2577 * @vsi: the vsi being adjusted
2578 * @vid: the vlan id to set as a PVID
2580 int i40e_vsi_add_pvid(struct i40e_vsi
*vsi
, u16 vid
)
2582 struct i40e_vsi_context ctxt
;
2585 vsi
->info
.valid_sections
= cpu_to_le16(I40E_AQ_VSI_PROP_VLAN_VALID
);
2586 vsi
->info
.pvid
= cpu_to_le16(vid
);
2587 vsi
->info
.port_vlan_flags
= I40E_AQ_VSI_PVLAN_MODE_TAGGED
|
2588 I40E_AQ_VSI_PVLAN_INSERT_PVID
|
2589 I40E_AQ_VSI_PVLAN_EMOD_STR
;
2591 ctxt
.seid
= vsi
->seid
;
2592 ctxt
.info
= vsi
->info
;
2593 ret
= i40e_aq_update_vsi_params(&vsi
->back
->hw
, &ctxt
, NULL
);
2595 dev_info(&vsi
->back
->pdev
->dev
,
2596 "add pvid failed, err %s aq_err %s\n",
2597 i40e_stat_str(&vsi
->back
->hw
, ret
),
2598 i40e_aq_str(&vsi
->back
->hw
,
2599 vsi
->back
->hw
.aq
.asq_last_status
));
2607 * i40e_vsi_remove_pvid - Remove the pvid from the VSI
2608 * @vsi: the vsi being adjusted
2610 * Just use the vlan_rx_register() service to put it back to normal
2612 void i40e_vsi_remove_pvid(struct i40e_vsi
*vsi
)
2614 i40e_vlan_stripping_disable(vsi
);
2620 * i40e_vsi_setup_tx_resources - Allocate VSI Tx queue resources
2621 * @vsi: ptr to the VSI
2623 * If this function returns with an error, then it's possible one or
2624 * more of the rings is populated (while the rest are not). It is the
2625 * callers duty to clean those orphaned rings.
2627 * Return 0 on success, negative on failure
2629 static int i40e_vsi_setup_tx_resources(struct i40e_vsi
*vsi
)
2633 for (i
= 0; i
< vsi
->num_queue_pairs
&& !err
; i
++)
2634 err
= i40e_setup_tx_descriptors(vsi
->tx_rings
[i
]);
2640 * i40e_vsi_free_tx_resources - Free Tx resources for VSI queues
2641 * @vsi: ptr to the VSI
2643 * Free VSI's transmit software resources
2645 static void i40e_vsi_free_tx_resources(struct i40e_vsi
*vsi
)
2652 for (i
= 0; i
< vsi
->num_queue_pairs
; i
++)
2653 if (vsi
->tx_rings
[i
] && vsi
->tx_rings
[i
]->desc
)
2654 i40e_free_tx_resources(vsi
->tx_rings
[i
]);
2658 * i40e_vsi_setup_rx_resources - Allocate VSI queues Rx resources
2659 * @vsi: ptr to the VSI
2661 * If this function returns with an error, then it's possible one or
2662 * more of the rings is populated (while the rest are not). It is the
2663 * callers duty to clean those orphaned rings.
2665 * Return 0 on success, negative on failure
2667 static int i40e_vsi_setup_rx_resources(struct i40e_vsi
*vsi
)
2671 for (i
= 0; i
< vsi
->num_queue_pairs
&& !err
; i
++)
2672 err
= i40e_setup_rx_descriptors(vsi
->rx_rings
[i
]);
2674 i40e_fcoe_setup_ddp_resources(vsi
);
2680 * i40e_vsi_free_rx_resources - Free Rx Resources for VSI queues
2681 * @vsi: ptr to the VSI
2683 * Free all receive software resources
2685 static void i40e_vsi_free_rx_resources(struct i40e_vsi
*vsi
)
2692 for (i
= 0; i
< vsi
->num_queue_pairs
; i
++)
2693 if (vsi
->rx_rings
[i
] && vsi
->rx_rings
[i
]->desc
)
2694 i40e_free_rx_resources(vsi
->rx_rings
[i
]);
2696 i40e_fcoe_free_ddp_resources(vsi
);
2701 * i40e_config_xps_tx_ring - Configure XPS for a Tx ring
2702 * @ring: The Tx ring to configure
2704 * This enables/disables XPS for a given Tx descriptor ring
2705 * based on the TCs enabled for the VSI that ring belongs to.
2707 static void i40e_config_xps_tx_ring(struct i40e_ring
*ring
)
2709 struct i40e_vsi
*vsi
= ring
->vsi
;
2712 if (!ring
->q_vector
|| !ring
->netdev
)
2715 /* Single TC mode enable XPS */
2716 if (vsi
->tc_config
.numtc
<= 1) {
2717 if (!test_and_set_bit(__I40E_TX_XPS_INIT_DONE
, &ring
->state
))
2718 netif_set_xps_queue(ring
->netdev
,
2719 &ring
->q_vector
->affinity_mask
,
2721 } else if (alloc_cpumask_var(&mask
, GFP_KERNEL
)) {
2722 /* Disable XPS to allow selection based on TC */
2723 bitmap_zero(cpumask_bits(mask
), nr_cpumask_bits
);
2724 netif_set_xps_queue(ring
->netdev
, mask
, ring
->queue_index
);
2725 free_cpumask_var(mask
);
2728 /* schedule our worker thread which will take care of
2729 * applying the new filter changes
2731 i40e_service_event_schedule(vsi
->back
);
2735 * i40e_configure_tx_ring - Configure a transmit ring context and rest
2736 * @ring: The Tx ring to configure
2738 * Configure the Tx descriptor ring in the HMC context.
2740 static int i40e_configure_tx_ring(struct i40e_ring
*ring
)
2742 struct i40e_vsi
*vsi
= ring
->vsi
;
2743 u16 pf_q
= vsi
->base_queue
+ ring
->queue_index
;
2744 struct i40e_hw
*hw
= &vsi
->back
->hw
;
2745 struct i40e_hmc_obj_txq tx_ctx
;
2746 i40e_status err
= 0;
2749 /* some ATR related tx ring init */
2750 if (vsi
->back
->flags
& I40E_FLAG_FD_ATR_ENABLED
) {
2751 ring
->atr_sample_rate
= vsi
->back
->atr_sample_rate
;
2752 ring
->atr_count
= 0;
2754 ring
->atr_sample_rate
= 0;
2758 i40e_config_xps_tx_ring(ring
);
2760 /* clear the context structure first */
2761 memset(&tx_ctx
, 0, sizeof(tx_ctx
));
2763 tx_ctx
.new_context
= 1;
2764 tx_ctx
.base
= (ring
->dma
/ 128);
2765 tx_ctx
.qlen
= ring
->count
;
2766 tx_ctx
.fd_ena
= !!(vsi
->back
->flags
& (I40E_FLAG_FD_SB_ENABLED
|
2767 I40E_FLAG_FD_ATR_ENABLED
));
2769 tx_ctx
.fc_ena
= (vsi
->type
== I40E_VSI_FCOE
);
2771 tx_ctx
.timesync_ena
= !!(vsi
->back
->flags
& I40E_FLAG_PTP
);
2772 /* FDIR VSI tx ring can still use RS bit and writebacks */
2773 if (vsi
->type
!= I40E_VSI_FDIR
)
2774 tx_ctx
.head_wb_ena
= 1;
2775 tx_ctx
.head_wb_addr
= ring
->dma
+
2776 (ring
->count
* sizeof(struct i40e_tx_desc
));
2778 /* As part of VSI creation/update, FW allocates certain
2779 * Tx arbitration queue sets for each TC enabled for
2780 * the VSI. The FW returns the handles to these queue
2781 * sets as part of the response buffer to Add VSI,
2782 * Update VSI, etc. AQ commands. It is expected that
2783 * these queue set handles be associated with the Tx
2784 * queues by the driver as part of the TX queue context
2785 * initialization. This has to be done regardless of
2786 * DCB as by default everything is mapped to TC0.
2788 tx_ctx
.rdylist
= le16_to_cpu(vsi
->info
.qs_handle
[ring
->dcb_tc
]);
2789 tx_ctx
.rdylist_act
= 0;
2791 /* clear the context in the HMC */
2792 err
= i40e_clear_lan_tx_queue_context(hw
, pf_q
);
2794 dev_info(&vsi
->back
->pdev
->dev
,
2795 "Failed to clear LAN Tx queue context on Tx ring %d (pf_q %d), error: %d\n",
2796 ring
->queue_index
, pf_q
, err
);
2800 /* set the context in the HMC */
2801 err
= i40e_set_lan_tx_queue_context(hw
, pf_q
, &tx_ctx
);
2803 dev_info(&vsi
->back
->pdev
->dev
,
2804 "Failed to set LAN Tx queue context on Tx ring %d (pf_q %d, error: %d\n",
2805 ring
->queue_index
, pf_q
, err
);
2809 /* Now associate this queue with this PCI function */
2810 if (vsi
->type
== I40E_VSI_VMDQ2
) {
2811 qtx_ctl
= I40E_QTX_CTL_VM_QUEUE
;
2812 qtx_ctl
|= ((vsi
->id
) << I40E_QTX_CTL_VFVM_INDX_SHIFT
) &
2813 I40E_QTX_CTL_VFVM_INDX_MASK
;
2815 qtx_ctl
= I40E_QTX_CTL_PF_QUEUE
;
2818 qtx_ctl
|= ((hw
->pf_id
<< I40E_QTX_CTL_PF_INDX_SHIFT
) &
2819 I40E_QTX_CTL_PF_INDX_MASK
);
2820 wr32(hw
, I40E_QTX_CTL(pf_q
), qtx_ctl
);
2823 /* cache tail off for easier writes later */
2824 ring
->tail
= hw
->hw_addr
+ I40E_QTX_TAIL(pf_q
);
2830 * i40e_configure_rx_ring - Configure a receive ring context
2831 * @ring: The Rx ring to configure
2833 * Configure the Rx descriptor ring in the HMC context.
2835 static int i40e_configure_rx_ring(struct i40e_ring
*ring
)
2837 struct i40e_vsi
*vsi
= ring
->vsi
;
2838 u32 chain_len
= vsi
->back
->hw
.func_caps
.rx_buf_chain_len
;
2839 u16 pf_q
= vsi
->base_queue
+ ring
->queue_index
;
2840 struct i40e_hw
*hw
= &vsi
->back
->hw
;
2841 struct i40e_hmc_obj_rxq rx_ctx
;
2842 i40e_status err
= 0;
2846 /* clear the context structure first */
2847 memset(&rx_ctx
, 0, sizeof(rx_ctx
));
2849 ring
->rx_buf_len
= vsi
->rx_buf_len
;
2850 ring
->rx_hdr_len
= vsi
->rx_hdr_len
;
2852 rx_ctx
.dbuff
= ring
->rx_buf_len
>> I40E_RXQ_CTX_DBUFF_SHIFT
;
2853 rx_ctx
.hbuff
= ring
->rx_hdr_len
>> I40E_RXQ_CTX_HBUFF_SHIFT
;
2855 rx_ctx
.base
= (ring
->dma
/ 128);
2856 rx_ctx
.qlen
= ring
->count
;
2858 if (vsi
->back
->flags
& I40E_FLAG_16BYTE_RX_DESC_ENABLED
) {
2859 set_ring_16byte_desc_enabled(ring
);
2865 rx_ctx
.dtype
= vsi
->dtype
;
2867 set_ring_ps_enabled(ring
);
2868 rx_ctx
.hsplit_0
= I40E_RX_SPLIT_L2
|
2870 I40E_RX_SPLIT_TCP_UDP
|
2873 rx_ctx
.hsplit_0
= 0;
2876 rx_ctx
.rxmax
= min_t(u16
, vsi
->max_frame
,
2877 (chain_len
* ring
->rx_buf_len
));
2878 if (hw
->revision_id
== 0)
2879 rx_ctx
.lrxqthresh
= 0;
2881 rx_ctx
.lrxqthresh
= 2;
2882 rx_ctx
.crcstrip
= 1;
2884 /* this controls whether VLAN is stripped from inner headers */
2887 rx_ctx
.fc_ena
= (vsi
->type
== I40E_VSI_FCOE
);
2889 /* set the prefena field to 1 because the manual says to */
2892 /* clear the context in the HMC */
2893 err
= i40e_clear_lan_rx_queue_context(hw
, pf_q
);
2895 dev_info(&vsi
->back
->pdev
->dev
,
2896 "Failed to clear LAN Rx queue context on Rx ring %d (pf_q %d), error: %d\n",
2897 ring
->queue_index
, pf_q
, err
);
2901 /* set the context in the HMC */
2902 err
= i40e_set_lan_rx_queue_context(hw
, pf_q
, &rx_ctx
);
2904 dev_info(&vsi
->back
->pdev
->dev
,
2905 "Failed to set LAN Rx queue context on Rx ring %d (pf_q %d), error: %d\n",
2906 ring
->queue_index
, pf_q
, err
);
2910 /* cache tail for quicker writes, and clear the reg before use */
2911 ring
->tail
= hw
->hw_addr
+ I40E_QRX_TAIL(pf_q
);
2912 writel(0, ring
->tail
);
2914 if (ring_is_ps_enabled(ring
)) {
2915 i40e_alloc_rx_headers(ring
);
2916 i40e_alloc_rx_buffers_ps(ring
, I40E_DESC_UNUSED(ring
));
2918 i40e_alloc_rx_buffers_1buf(ring
, I40E_DESC_UNUSED(ring
));
2925 * i40e_vsi_configure_tx - Configure the VSI for Tx
2926 * @vsi: VSI structure describing this set of rings and resources
2928 * Configure the Tx VSI for operation.
2930 static int i40e_vsi_configure_tx(struct i40e_vsi
*vsi
)
2935 for (i
= 0; (i
< vsi
->num_queue_pairs
) && !err
; i
++)
2936 err
= i40e_configure_tx_ring(vsi
->tx_rings
[i
]);
2942 * i40e_vsi_configure_rx - Configure the VSI for Rx
2943 * @vsi: the VSI being configured
2945 * Configure the Rx VSI for operation.
2947 static int i40e_vsi_configure_rx(struct i40e_vsi
*vsi
)
2952 if (vsi
->netdev
&& (vsi
->netdev
->mtu
> ETH_DATA_LEN
))
2953 vsi
->max_frame
= vsi
->netdev
->mtu
+ ETH_HLEN
2954 + ETH_FCS_LEN
+ VLAN_HLEN
;
2956 vsi
->max_frame
= I40E_RXBUFFER_2048
;
2958 /* figure out correct receive buffer length */
2959 switch (vsi
->back
->flags
& (I40E_FLAG_RX_1BUF_ENABLED
|
2960 I40E_FLAG_RX_PS_ENABLED
)) {
2961 case I40E_FLAG_RX_1BUF_ENABLED
:
2962 vsi
->rx_hdr_len
= 0;
2963 vsi
->rx_buf_len
= vsi
->max_frame
;
2964 vsi
->dtype
= I40E_RX_DTYPE_NO_SPLIT
;
2966 case I40E_FLAG_RX_PS_ENABLED
:
2967 vsi
->rx_hdr_len
= I40E_RX_HDR_SIZE
;
2968 vsi
->rx_buf_len
= I40E_RXBUFFER_2048
;
2969 vsi
->dtype
= I40E_RX_DTYPE_HEADER_SPLIT
;
2972 vsi
->rx_hdr_len
= I40E_RX_HDR_SIZE
;
2973 vsi
->rx_buf_len
= I40E_RXBUFFER_2048
;
2974 vsi
->dtype
= I40E_RX_DTYPE_SPLIT_ALWAYS
;
2979 /* setup rx buffer for FCoE */
2980 if ((vsi
->type
== I40E_VSI_FCOE
) &&
2981 (vsi
->back
->flags
& I40E_FLAG_FCOE_ENABLED
)) {
2982 vsi
->rx_hdr_len
= 0;
2983 vsi
->rx_buf_len
= I40E_RXBUFFER_3072
;
2984 vsi
->max_frame
= I40E_RXBUFFER_3072
;
2985 vsi
->dtype
= I40E_RX_DTYPE_NO_SPLIT
;
2988 #endif /* I40E_FCOE */
2989 /* round up for the chip's needs */
2990 vsi
->rx_hdr_len
= ALIGN(vsi
->rx_hdr_len
,
2991 BIT_ULL(I40E_RXQ_CTX_HBUFF_SHIFT
));
2992 vsi
->rx_buf_len
= ALIGN(vsi
->rx_buf_len
,
2993 BIT_ULL(I40E_RXQ_CTX_DBUFF_SHIFT
));
2995 /* set up individual rings */
2996 for (i
= 0; i
< vsi
->num_queue_pairs
&& !err
; i
++)
2997 err
= i40e_configure_rx_ring(vsi
->rx_rings
[i
]);
3003 * i40e_vsi_config_dcb_rings - Update rings to reflect DCB TC
3004 * @vsi: ptr to the VSI
3006 static void i40e_vsi_config_dcb_rings(struct i40e_vsi
*vsi
)
3008 struct i40e_ring
*tx_ring
, *rx_ring
;
3009 u16 qoffset
, qcount
;
3012 if (!(vsi
->back
->flags
& I40E_FLAG_DCB_ENABLED
)) {
3013 /* Reset the TC information */
3014 for (i
= 0; i
< vsi
->num_queue_pairs
; i
++) {
3015 rx_ring
= vsi
->rx_rings
[i
];
3016 tx_ring
= vsi
->tx_rings
[i
];
3017 rx_ring
->dcb_tc
= 0;
3018 tx_ring
->dcb_tc
= 0;
3022 for (n
= 0; n
< I40E_MAX_TRAFFIC_CLASS
; n
++) {
3023 if (!(vsi
->tc_config
.enabled_tc
& BIT_ULL(n
)))
3026 qoffset
= vsi
->tc_config
.tc_info
[n
].qoffset
;
3027 qcount
= vsi
->tc_config
.tc_info
[n
].qcount
;
3028 for (i
= qoffset
; i
< (qoffset
+ qcount
); i
++) {
3029 rx_ring
= vsi
->rx_rings
[i
];
3030 tx_ring
= vsi
->tx_rings
[i
];
3031 rx_ring
->dcb_tc
= n
;
3032 tx_ring
->dcb_tc
= n
;
3038 * i40e_set_vsi_rx_mode - Call set_rx_mode on a VSI
3039 * @vsi: ptr to the VSI
3041 static void i40e_set_vsi_rx_mode(struct i40e_vsi
*vsi
)
3044 i40e_set_rx_mode(vsi
->netdev
);
3048 * i40e_fdir_filter_restore - Restore the Sideband Flow Director filters
3049 * @vsi: Pointer to the targeted VSI
3051 * This function replays the hlist on the hw where all the SB Flow Director
3052 * filters were saved.
3054 static void i40e_fdir_filter_restore(struct i40e_vsi
*vsi
)
3056 struct i40e_fdir_filter
*filter
;
3057 struct i40e_pf
*pf
= vsi
->back
;
3058 struct hlist_node
*node
;
3060 if (!(pf
->flags
& I40E_FLAG_FD_SB_ENABLED
))
3063 hlist_for_each_entry_safe(filter
, node
,
3064 &pf
->fdir_filter_list
, fdir_node
) {
3065 i40e_add_del_fdir(vsi
, filter
, true);
3070 * i40e_vsi_configure - Set up the VSI for action
3071 * @vsi: the VSI being configured
3073 static int i40e_vsi_configure(struct i40e_vsi
*vsi
)
3077 i40e_set_vsi_rx_mode(vsi
);
3078 i40e_restore_vlan(vsi
);
3079 i40e_vsi_config_dcb_rings(vsi
);
3080 err
= i40e_vsi_configure_tx(vsi
);
3082 err
= i40e_vsi_configure_rx(vsi
);
3088 * i40e_vsi_configure_msix - MSIX mode Interrupt Config in the HW
3089 * @vsi: the VSI being configured
3091 static void i40e_vsi_configure_msix(struct i40e_vsi
*vsi
)
3093 struct i40e_pf
*pf
= vsi
->back
;
3094 struct i40e_hw
*hw
= &pf
->hw
;
3099 /* The interrupt indexing is offset by 1 in the PFINT_ITRn
3100 * and PFINT_LNKLSTn registers, e.g.:
3101 * PFINT_ITRn[0..n-1] gets msix-1..msix-n (qpair interrupts)
3103 qp
= vsi
->base_queue
;
3104 vector
= vsi
->base_vector
;
3105 for (i
= 0; i
< vsi
->num_q_vectors
; i
++, vector
++) {
3106 struct i40e_q_vector
*q_vector
= vsi
->q_vectors
[i
];
3108 q_vector
->itr_countdown
= ITR_COUNTDOWN_START
;
3109 q_vector
->rx
.itr
= ITR_TO_REG(vsi
->rx_itr_setting
);
3110 q_vector
->rx
.latency_range
= I40E_LOW_LATENCY
;
3111 wr32(hw
, I40E_PFINT_ITRN(I40E_RX_ITR
, vector
- 1),
3113 q_vector
->tx
.itr
= ITR_TO_REG(vsi
->tx_itr_setting
);
3114 q_vector
->tx
.latency_range
= I40E_LOW_LATENCY
;
3115 wr32(hw
, I40E_PFINT_ITRN(I40E_TX_ITR
, vector
- 1),
3117 wr32(hw
, I40E_PFINT_RATEN(vector
- 1),
3118 INTRL_USEC_TO_REG(vsi
->int_rate_limit
));
3120 /* Linked list for the queuepairs assigned to this vector */
3121 wr32(hw
, I40E_PFINT_LNKLSTN(vector
- 1), qp
);
3122 for (q
= 0; q
< q_vector
->num_ringpairs
; q
++) {
3125 val
= I40E_QINT_RQCTL_CAUSE_ENA_MASK
|
3126 (I40E_RX_ITR
<< I40E_QINT_RQCTL_ITR_INDX_SHIFT
) |
3127 (vector
<< I40E_QINT_RQCTL_MSIX_INDX_SHIFT
) |
3128 (qp
<< I40E_QINT_RQCTL_NEXTQ_INDX_SHIFT
)|
3130 << I40E_QINT_RQCTL_NEXTQ_TYPE_SHIFT
);
3132 wr32(hw
, I40E_QINT_RQCTL(qp
), val
);
3134 val
= I40E_QINT_TQCTL_CAUSE_ENA_MASK
|
3135 (I40E_TX_ITR
<< I40E_QINT_TQCTL_ITR_INDX_SHIFT
) |
3136 (vector
<< I40E_QINT_TQCTL_MSIX_INDX_SHIFT
) |
3137 ((qp
+1) << I40E_QINT_TQCTL_NEXTQ_INDX_SHIFT
)|
3139 << I40E_QINT_TQCTL_NEXTQ_TYPE_SHIFT
);
3141 /* Terminate the linked list */
3142 if (q
== (q_vector
->num_ringpairs
- 1))
3143 val
|= (I40E_QUEUE_END_OF_LIST
3144 << I40E_QINT_TQCTL_NEXTQ_INDX_SHIFT
);
3146 wr32(hw
, I40E_QINT_TQCTL(qp
), val
);
3155 * i40e_enable_misc_int_causes - enable the non-queue interrupts
3156 * @hw: ptr to the hardware info
3158 static void i40e_enable_misc_int_causes(struct i40e_pf
*pf
)
3160 struct i40e_hw
*hw
= &pf
->hw
;
3163 /* clear things first */
3164 wr32(hw
, I40E_PFINT_ICR0_ENA
, 0); /* disable all */
3165 rd32(hw
, I40E_PFINT_ICR0
); /* read to clear */
3167 val
= I40E_PFINT_ICR0_ENA_ECC_ERR_MASK
|
3168 I40E_PFINT_ICR0_ENA_MAL_DETECT_MASK
|
3169 I40E_PFINT_ICR0_ENA_GRST_MASK
|
3170 I40E_PFINT_ICR0_ENA_PCI_EXCEPTION_MASK
|
3171 I40E_PFINT_ICR0_ENA_GPIO_MASK
|
3172 I40E_PFINT_ICR0_ENA_HMC_ERR_MASK
|
3173 I40E_PFINT_ICR0_ENA_VFLR_MASK
|
3174 I40E_PFINT_ICR0_ENA_ADMINQ_MASK
;
3176 if (pf
->flags
& I40E_FLAG_IWARP_ENABLED
)
3177 val
|= I40E_PFINT_ICR0_ENA_PE_CRITERR_MASK
;
3179 if (pf
->flags
& I40E_FLAG_PTP
)
3180 val
|= I40E_PFINT_ICR0_ENA_TIMESYNC_MASK
;
3182 wr32(hw
, I40E_PFINT_ICR0_ENA
, val
);
3184 /* SW_ITR_IDX = 0, but don't change INTENA */
3185 wr32(hw
, I40E_PFINT_DYN_CTL0
, I40E_PFINT_DYN_CTL0_SW_ITR_INDX_MASK
|
3186 I40E_PFINT_DYN_CTL0_INTENA_MSK_MASK
);
3188 /* OTHER_ITR_IDX = 0 */
3189 wr32(hw
, I40E_PFINT_STAT_CTL0
, 0);
3193 * i40e_configure_msi_and_legacy - Legacy mode interrupt config in the HW
3194 * @vsi: the VSI being configured
3196 static void i40e_configure_msi_and_legacy(struct i40e_vsi
*vsi
)
3198 struct i40e_q_vector
*q_vector
= vsi
->q_vectors
[0];
3199 struct i40e_pf
*pf
= vsi
->back
;
3200 struct i40e_hw
*hw
= &pf
->hw
;
3203 /* set the ITR configuration */
3204 q_vector
->itr_countdown
= ITR_COUNTDOWN_START
;
3205 q_vector
->rx
.itr
= ITR_TO_REG(vsi
->rx_itr_setting
);
3206 q_vector
->rx
.latency_range
= I40E_LOW_LATENCY
;
3207 wr32(hw
, I40E_PFINT_ITR0(I40E_RX_ITR
), q_vector
->rx
.itr
);
3208 q_vector
->tx
.itr
= ITR_TO_REG(vsi
->tx_itr_setting
);
3209 q_vector
->tx
.latency_range
= I40E_LOW_LATENCY
;
3210 wr32(hw
, I40E_PFINT_ITR0(I40E_TX_ITR
), q_vector
->tx
.itr
);
3212 i40e_enable_misc_int_causes(pf
);
3214 /* FIRSTQ_INDX = 0, FIRSTQ_TYPE = 0 (rx) */
3215 wr32(hw
, I40E_PFINT_LNKLST0
, 0);
3217 /* Associate the queue pair to the vector and enable the queue int */
3218 val
= I40E_QINT_RQCTL_CAUSE_ENA_MASK
|
3219 (I40E_RX_ITR
<< I40E_QINT_RQCTL_ITR_INDX_SHIFT
) |
3220 (I40E_QUEUE_TYPE_TX
<< I40E_QINT_TQCTL_NEXTQ_TYPE_SHIFT
);
3222 wr32(hw
, I40E_QINT_RQCTL(0), val
);
3224 val
= I40E_QINT_TQCTL_CAUSE_ENA_MASK
|
3225 (I40E_TX_ITR
<< I40E_QINT_TQCTL_ITR_INDX_SHIFT
) |
3226 (I40E_QUEUE_END_OF_LIST
<< I40E_QINT_TQCTL_NEXTQ_INDX_SHIFT
);
3228 wr32(hw
, I40E_QINT_TQCTL(0), val
);
3233 * i40e_irq_dynamic_disable_icr0 - Disable default interrupt generation for icr0
3234 * @pf: board private structure
3236 void i40e_irq_dynamic_disable_icr0(struct i40e_pf
*pf
)
3238 struct i40e_hw
*hw
= &pf
->hw
;
3240 wr32(hw
, I40E_PFINT_DYN_CTL0
,
3241 I40E_ITR_NONE
<< I40E_PFINT_DYN_CTLN_ITR_INDX_SHIFT
);
3246 * i40e_irq_dynamic_enable_icr0 - Enable default interrupt generation for icr0
3247 * @pf: board private structure
3249 void i40e_irq_dynamic_enable_icr0(struct i40e_pf
*pf
)
3251 struct i40e_hw
*hw
= &pf
->hw
;
3254 val
= I40E_PFINT_DYN_CTL0_INTENA_MASK
|
3255 I40E_PFINT_DYN_CTL0_CLEARPBA_MASK
|
3256 (I40E_ITR_NONE
<< I40E_PFINT_DYN_CTL0_ITR_INDX_SHIFT
);
3258 wr32(hw
, I40E_PFINT_DYN_CTL0
, val
);
3263 * i40e_irq_dynamic_disable - Disable default interrupt generation settings
3264 * @vsi: pointer to a vsi
3265 * @vector: disable a particular Hw Interrupt vector
3267 void i40e_irq_dynamic_disable(struct i40e_vsi
*vsi
, int vector
)
3269 struct i40e_pf
*pf
= vsi
->back
;
3270 struct i40e_hw
*hw
= &pf
->hw
;
3273 val
= I40E_ITR_NONE
<< I40E_PFINT_DYN_CTLN_ITR_INDX_SHIFT
;
3274 wr32(hw
, I40E_PFINT_DYN_CTLN(vector
- 1), val
);
3279 * i40e_msix_clean_rings - MSIX mode Interrupt Handler
3280 * @irq: interrupt number
3281 * @data: pointer to a q_vector
3283 static irqreturn_t
i40e_msix_clean_rings(int irq
, void *data
)
3285 struct i40e_q_vector
*q_vector
= data
;
3287 if (!q_vector
->tx
.ring
&& !q_vector
->rx
.ring
)
3290 napi_schedule_irqoff(&q_vector
->napi
);
3296 * i40e_vsi_request_irq_msix - Initialize MSI-X interrupts
3297 * @vsi: the VSI being configured
3298 * @basename: name for the vector
3300 * Allocates MSI-X vectors and requests interrupts from the kernel.
3302 static int i40e_vsi_request_irq_msix(struct i40e_vsi
*vsi
, char *basename
)
3304 int q_vectors
= vsi
->num_q_vectors
;
3305 struct i40e_pf
*pf
= vsi
->back
;
3306 int base
= vsi
->base_vector
;
3311 for (vector
= 0; vector
< q_vectors
; vector
++) {
3312 struct i40e_q_vector
*q_vector
= vsi
->q_vectors
[vector
];
3314 if (q_vector
->tx
.ring
&& q_vector
->rx
.ring
) {
3315 snprintf(q_vector
->name
, sizeof(q_vector
->name
) - 1,
3316 "%s-%s-%d", basename
, "TxRx", rx_int_idx
++);
3318 } else if (q_vector
->rx
.ring
) {
3319 snprintf(q_vector
->name
, sizeof(q_vector
->name
) - 1,
3320 "%s-%s-%d", basename
, "rx", rx_int_idx
++);
3321 } else if (q_vector
->tx
.ring
) {
3322 snprintf(q_vector
->name
, sizeof(q_vector
->name
) - 1,
3323 "%s-%s-%d", basename
, "tx", tx_int_idx
++);
3325 /* skip this unused q_vector */
3328 err
= request_irq(pf
->msix_entries
[base
+ vector
].vector
,
3334 dev_info(&pf
->pdev
->dev
,
3335 "MSIX request_irq failed, error: %d\n", err
);
3336 goto free_queue_irqs
;
3338 /* assign the mask for this irq */
3339 irq_set_affinity_hint(pf
->msix_entries
[base
+ vector
].vector
,
3340 &q_vector
->affinity_mask
);
3343 vsi
->irqs_ready
= true;
3349 irq_set_affinity_hint(pf
->msix_entries
[base
+ vector
].vector
,
3351 free_irq(pf
->msix_entries
[base
+ vector
].vector
,
3352 &(vsi
->q_vectors
[vector
]));
3358 * i40e_vsi_disable_irq - Mask off queue interrupt generation on the VSI
3359 * @vsi: the VSI being un-configured
3361 static void i40e_vsi_disable_irq(struct i40e_vsi
*vsi
)
3363 struct i40e_pf
*pf
= vsi
->back
;
3364 struct i40e_hw
*hw
= &pf
->hw
;
3365 int base
= vsi
->base_vector
;
3368 for (i
= 0; i
< vsi
->num_queue_pairs
; i
++) {
3369 wr32(hw
, I40E_QINT_TQCTL(vsi
->tx_rings
[i
]->reg_idx
), 0);
3370 wr32(hw
, I40E_QINT_RQCTL(vsi
->rx_rings
[i
]->reg_idx
), 0);
3373 if (pf
->flags
& I40E_FLAG_MSIX_ENABLED
) {
3374 for (i
= vsi
->base_vector
;
3375 i
< (vsi
->num_q_vectors
+ vsi
->base_vector
); i
++)
3376 wr32(hw
, I40E_PFINT_DYN_CTLN(i
- 1), 0);
3379 for (i
= 0; i
< vsi
->num_q_vectors
; i
++)
3380 synchronize_irq(pf
->msix_entries
[i
+ base
].vector
);
3382 /* Legacy and MSI mode - this stops all interrupt handling */
3383 wr32(hw
, I40E_PFINT_ICR0_ENA
, 0);
3384 wr32(hw
, I40E_PFINT_DYN_CTL0
, 0);
3386 synchronize_irq(pf
->pdev
->irq
);
3391 * i40e_vsi_enable_irq - Enable IRQ for the given VSI
3392 * @vsi: the VSI being configured
3394 static int i40e_vsi_enable_irq(struct i40e_vsi
*vsi
)
3396 struct i40e_pf
*pf
= vsi
->back
;
3399 if (pf
->flags
& I40E_FLAG_MSIX_ENABLED
) {
3400 for (i
= 0; i
< vsi
->num_q_vectors
; i
++)
3401 i40e_irq_dynamic_enable(vsi
, i
);
3403 i40e_irq_dynamic_enable_icr0(pf
);
3406 i40e_flush(&pf
->hw
);
3411 * i40e_stop_misc_vector - Stop the vector that handles non-queue events
3412 * @pf: board private structure
3414 static void i40e_stop_misc_vector(struct i40e_pf
*pf
)
3417 wr32(&pf
->hw
, I40E_PFINT_ICR0_ENA
, 0);
3418 i40e_flush(&pf
->hw
);
3422 * i40e_intr - MSI/Legacy and non-queue interrupt handler
3423 * @irq: interrupt number
3424 * @data: pointer to a q_vector
3426 * This is the handler used for all MSI/Legacy interrupts, and deals
3427 * with both queue and non-queue interrupts. This is also used in
3428 * MSIX mode to handle the non-queue interrupts.
3430 static irqreturn_t
i40e_intr(int irq
, void *data
)
3432 struct i40e_pf
*pf
= (struct i40e_pf
*)data
;
3433 struct i40e_hw
*hw
= &pf
->hw
;
3434 irqreturn_t ret
= IRQ_NONE
;
3435 u32 icr0
, icr0_remaining
;
3438 icr0
= rd32(hw
, I40E_PFINT_ICR0
);
3439 ena_mask
= rd32(hw
, I40E_PFINT_ICR0_ENA
);
3441 /* if sharing a legacy IRQ, we might get called w/o an intr pending */
3442 if ((icr0
& I40E_PFINT_ICR0_INTEVENT_MASK
) == 0)
3445 /* if interrupt but no bits showing, must be SWINT */
3446 if (((icr0
& ~I40E_PFINT_ICR0_INTEVENT_MASK
) == 0) ||
3447 (icr0
& I40E_PFINT_ICR0_SWINT_MASK
))
3450 if ((pf
->flags
& I40E_FLAG_IWARP_ENABLED
) &&
3451 (ena_mask
& I40E_PFINT_ICR0_ENA_PE_CRITERR_MASK
)) {
3452 ena_mask
&= ~I40E_PFINT_ICR0_ENA_PE_CRITERR_MASK
;
3453 icr0
&= ~I40E_PFINT_ICR0_ENA_PE_CRITERR_MASK
;
3454 dev_info(&pf
->pdev
->dev
, "cleared PE_CRITERR\n");
3457 /* only q0 is used in MSI/Legacy mode, and none are used in MSIX */
3458 if (icr0
& I40E_PFINT_ICR0_QUEUE_0_MASK
) {
3459 struct i40e_vsi
*vsi
= pf
->vsi
[pf
->lan_vsi
];
3460 struct i40e_q_vector
*q_vector
= vsi
->q_vectors
[0];
3462 /* temporarily disable queue cause for NAPI processing */
3463 u32 qval
= rd32(hw
, I40E_QINT_RQCTL(0));
3465 qval
&= ~I40E_QINT_RQCTL_CAUSE_ENA_MASK
;
3466 wr32(hw
, I40E_QINT_RQCTL(0), qval
);
3468 qval
= rd32(hw
, I40E_QINT_TQCTL(0));
3469 qval
&= ~I40E_QINT_TQCTL_CAUSE_ENA_MASK
;
3470 wr32(hw
, I40E_QINT_TQCTL(0), qval
);
3472 if (!test_bit(__I40E_DOWN
, &pf
->state
))
3473 napi_schedule_irqoff(&q_vector
->napi
);
3476 if (icr0
& I40E_PFINT_ICR0_ADMINQ_MASK
) {
3477 ena_mask
&= ~I40E_PFINT_ICR0_ENA_ADMINQ_MASK
;
3478 set_bit(__I40E_ADMINQ_EVENT_PENDING
, &pf
->state
);
3481 if (icr0
& I40E_PFINT_ICR0_MAL_DETECT_MASK
) {
3482 ena_mask
&= ~I40E_PFINT_ICR0_ENA_MAL_DETECT_MASK
;
3483 set_bit(__I40E_MDD_EVENT_PENDING
, &pf
->state
);
3486 if (icr0
& I40E_PFINT_ICR0_VFLR_MASK
) {
3487 ena_mask
&= ~I40E_PFINT_ICR0_ENA_VFLR_MASK
;
3488 set_bit(__I40E_VFLR_EVENT_PENDING
, &pf
->state
);
3491 if (icr0
& I40E_PFINT_ICR0_GRST_MASK
) {
3492 if (!test_bit(__I40E_RESET_RECOVERY_PENDING
, &pf
->state
))
3493 set_bit(__I40E_RESET_INTR_RECEIVED
, &pf
->state
);
3494 ena_mask
&= ~I40E_PFINT_ICR0_ENA_GRST_MASK
;
3495 val
= rd32(hw
, I40E_GLGEN_RSTAT
);
3496 val
= (val
& I40E_GLGEN_RSTAT_RESET_TYPE_MASK
)
3497 >> I40E_GLGEN_RSTAT_RESET_TYPE_SHIFT
;
3498 if (val
== I40E_RESET_CORER
) {
3500 } else if (val
== I40E_RESET_GLOBR
) {
3502 } else if (val
== I40E_RESET_EMPR
) {
3504 set_bit(__I40E_EMP_RESET_INTR_RECEIVED
, &pf
->state
);
3508 if (icr0
& I40E_PFINT_ICR0_HMC_ERR_MASK
) {
3509 icr0
&= ~I40E_PFINT_ICR0_HMC_ERR_MASK
;
3510 dev_info(&pf
->pdev
->dev
, "HMC error interrupt\n");
3511 dev_info(&pf
->pdev
->dev
, "HMC error info 0x%x, HMC error data 0x%x\n",
3512 rd32(hw
, I40E_PFHMC_ERRORINFO
),
3513 rd32(hw
, I40E_PFHMC_ERRORDATA
));
3516 if (icr0
& I40E_PFINT_ICR0_TIMESYNC_MASK
) {
3517 u32 prttsyn_stat
= rd32(hw
, I40E_PRTTSYN_STAT_0
);
3519 if (prttsyn_stat
& I40E_PRTTSYN_STAT_0_TXTIME_MASK
) {
3520 icr0
&= ~I40E_PFINT_ICR0_ENA_TIMESYNC_MASK
;
3521 i40e_ptp_tx_hwtstamp(pf
);
3525 /* If a critical error is pending we have no choice but to reset the
3527 * Report and mask out any remaining unexpected interrupts.
3529 icr0_remaining
= icr0
& ena_mask
;
3530 if (icr0_remaining
) {
3531 dev_info(&pf
->pdev
->dev
, "unhandled interrupt icr0=0x%08x\n",
3533 if ((icr0_remaining
& I40E_PFINT_ICR0_PE_CRITERR_MASK
) ||
3534 (icr0_remaining
& I40E_PFINT_ICR0_PCI_EXCEPTION_MASK
) ||
3535 (icr0_remaining
& I40E_PFINT_ICR0_ECC_ERR_MASK
)) {
3536 dev_info(&pf
->pdev
->dev
, "device will be reset\n");
3537 set_bit(__I40E_PF_RESET_REQUESTED
, &pf
->state
);
3538 i40e_service_event_schedule(pf
);
3540 ena_mask
&= ~icr0_remaining
;
3545 /* re-enable interrupt causes */
3546 wr32(hw
, I40E_PFINT_ICR0_ENA
, ena_mask
);
3547 if (!test_bit(__I40E_DOWN
, &pf
->state
)) {
3548 i40e_service_event_schedule(pf
);
3549 i40e_irq_dynamic_enable_icr0(pf
);
3556 * i40e_clean_fdir_tx_irq - Reclaim resources after transmit completes
3557 * @tx_ring: tx ring to clean
3558 * @budget: how many cleans we're allowed
3560 * Returns true if there's any budget left (e.g. the clean is finished)
3562 static bool i40e_clean_fdir_tx_irq(struct i40e_ring
*tx_ring
, int budget
)
3564 struct i40e_vsi
*vsi
= tx_ring
->vsi
;
3565 u16 i
= tx_ring
->next_to_clean
;
3566 struct i40e_tx_buffer
*tx_buf
;
3567 struct i40e_tx_desc
*tx_desc
;
3569 tx_buf
= &tx_ring
->tx_bi
[i
];
3570 tx_desc
= I40E_TX_DESC(tx_ring
, i
);
3571 i
-= tx_ring
->count
;
3574 struct i40e_tx_desc
*eop_desc
= tx_buf
->next_to_watch
;
3576 /* if next_to_watch is not set then there is no work pending */
3580 /* prevent any other reads prior to eop_desc */
3581 read_barrier_depends();
3583 /* if the descriptor isn't done, no work yet to do */
3584 if (!(eop_desc
->cmd_type_offset_bsz
&
3585 cpu_to_le64(I40E_TX_DESC_DTYPE_DESC_DONE
)))
3588 /* clear next_to_watch to prevent false hangs */
3589 tx_buf
->next_to_watch
= NULL
;
3591 tx_desc
->buffer_addr
= 0;
3592 tx_desc
->cmd_type_offset_bsz
= 0;
3593 /* move past filter desc */
3598 i
-= tx_ring
->count
;
3599 tx_buf
= tx_ring
->tx_bi
;
3600 tx_desc
= I40E_TX_DESC(tx_ring
, 0);
3602 /* unmap skb header data */
3603 dma_unmap_single(tx_ring
->dev
,
3604 dma_unmap_addr(tx_buf
, dma
),
3605 dma_unmap_len(tx_buf
, len
),
3607 if (tx_buf
->tx_flags
& I40E_TX_FLAGS_FD_SB
)
3608 kfree(tx_buf
->raw_buf
);
3610 tx_buf
->raw_buf
= NULL
;
3611 tx_buf
->tx_flags
= 0;
3612 tx_buf
->next_to_watch
= NULL
;
3613 dma_unmap_len_set(tx_buf
, len
, 0);
3614 tx_desc
->buffer_addr
= 0;
3615 tx_desc
->cmd_type_offset_bsz
= 0;
3617 /* move us past the eop_desc for start of next FD desc */
3622 i
-= tx_ring
->count
;
3623 tx_buf
= tx_ring
->tx_bi
;
3624 tx_desc
= I40E_TX_DESC(tx_ring
, 0);
3627 /* update budget accounting */
3629 } while (likely(budget
));
3631 i
+= tx_ring
->count
;
3632 tx_ring
->next_to_clean
= i
;
3634 if (vsi
->back
->flags
& I40E_FLAG_MSIX_ENABLED
)
3635 i40e_irq_dynamic_enable(vsi
, tx_ring
->q_vector
->v_idx
);
3641 * i40e_fdir_clean_ring - Interrupt Handler for FDIR SB ring
3642 * @irq: interrupt number
3643 * @data: pointer to a q_vector
3645 static irqreturn_t
i40e_fdir_clean_ring(int irq
, void *data
)
3647 struct i40e_q_vector
*q_vector
= data
;
3648 struct i40e_vsi
*vsi
;
3650 if (!q_vector
->tx
.ring
)
3653 vsi
= q_vector
->tx
.ring
->vsi
;
3654 i40e_clean_fdir_tx_irq(q_vector
->tx
.ring
, vsi
->work_limit
);
3660 * i40e_map_vector_to_qp - Assigns the queue pair to the vector
3661 * @vsi: the VSI being configured
3662 * @v_idx: vector index
3663 * @qp_idx: queue pair index
3665 static void i40e_map_vector_to_qp(struct i40e_vsi
*vsi
, int v_idx
, int qp_idx
)
3667 struct i40e_q_vector
*q_vector
= vsi
->q_vectors
[v_idx
];
3668 struct i40e_ring
*tx_ring
= vsi
->tx_rings
[qp_idx
];
3669 struct i40e_ring
*rx_ring
= vsi
->rx_rings
[qp_idx
];
3671 tx_ring
->q_vector
= q_vector
;
3672 tx_ring
->next
= q_vector
->tx
.ring
;
3673 q_vector
->tx
.ring
= tx_ring
;
3674 q_vector
->tx
.count
++;
3676 rx_ring
->q_vector
= q_vector
;
3677 rx_ring
->next
= q_vector
->rx
.ring
;
3678 q_vector
->rx
.ring
= rx_ring
;
3679 q_vector
->rx
.count
++;
3683 * i40e_vsi_map_rings_to_vectors - Maps descriptor rings to vectors
3684 * @vsi: the VSI being configured
3686 * This function maps descriptor rings to the queue-specific vectors
3687 * we were allotted through the MSI-X enabling code. Ideally, we'd have
3688 * one vector per queue pair, but on a constrained vector budget, we
3689 * group the queue pairs as "efficiently" as possible.
3691 static void i40e_vsi_map_rings_to_vectors(struct i40e_vsi
*vsi
)
3693 int qp_remaining
= vsi
->num_queue_pairs
;
3694 int q_vectors
= vsi
->num_q_vectors
;
3699 /* If we don't have enough vectors for a 1-to-1 mapping, we'll have to
3700 * group them so there are multiple queues per vector.
3701 * It is also important to go through all the vectors available to be
3702 * sure that if we don't use all the vectors, that the remaining vectors
3703 * are cleared. This is especially important when decreasing the
3704 * number of queues in use.
3706 for (; v_start
< q_vectors
; v_start
++) {
3707 struct i40e_q_vector
*q_vector
= vsi
->q_vectors
[v_start
];
3709 num_ringpairs
= DIV_ROUND_UP(qp_remaining
, q_vectors
- v_start
);
3711 q_vector
->num_ringpairs
= num_ringpairs
;
3713 q_vector
->rx
.count
= 0;
3714 q_vector
->tx
.count
= 0;
3715 q_vector
->rx
.ring
= NULL
;
3716 q_vector
->tx
.ring
= NULL
;
3718 while (num_ringpairs
--) {
3719 i40e_map_vector_to_qp(vsi
, v_start
, qp_idx
);
3727 * i40e_vsi_request_irq - Request IRQ from the OS
3728 * @vsi: the VSI being configured
3729 * @basename: name for the vector
3731 static int i40e_vsi_request_irq(struct i40e_vsi
*vsi
, char *basename
)
3733 struct i40e_pf
*pf
= vsi
->back
;
3736 if (pf
->flags
& I40E_FLAG_MSIX_ENABLED
)
3737 err
= i40e_vsi_request_irq_msix(vsi
, basename
);
3738 else if (pf
->flags
& I40E_FLAG_MSI_ENABLED
)
3739 err
= request_irq(pf
->pdev
->irq
, i40e_intr
, 0,
3742 err
= request_irq(pf
->pdev
->irq
, i40e_intr
, IRQF_SHARED
,
3746 dev_info(&pf
->pdev
->dev
, "request_irq failed, Error %d\n", err
);
3751 #ifdef CONFIG_NET_POLL_CONTROLLER
3753 * i40e_netpoll - A Polling 'interrupt'handler
3754 * @netdev: network interface device structure
3756 * This is used by netconsole to send skbs without having to re-enable
3757 * interrupts. It's not called while the normal interrupt routine is executing.
3760 void i40e_netpoll(struct net_device
*netdev
)
3762 static void i40e_netpoll(struct net_device
*netdev
)
3765 struct i40e_netdev_priv
*np
= netdev_priv(netdev
);
3766 struct i40e_vsi
*vsi
= np
->vsi
;
3767 struct i40e_pf
*pf
= vsi
->back
;
3770 /* if interface is down do nothing */
3771 if (test_bit(__I40E_DOWN
, &vsi
->state
))
3774 if (pf
->flags
& I40E_FLAG_MSIX_ENABLED
) {
3775 for (i
= 0; i
< vsi
->num_q_vectors
; i
++)
3776 i40e_msix_clean_rings(0, vsi
->q_vectors
[i
]);
3778 i40e_intr(pf
->pdev
->irq
, netdev
);
3784 * i40e_pf_txq_wait - Wait for a PF's Tx queue to be enabled or disabled
3785 * @pf: the PF being configured
3786 * @pf_q: the PF queue
3787 * @enable: enable or disable state of the queue
3789 * This routine will wait for the given Tx queue of the PF to reach the
3790 * enabled or disabled state.
3791 * Returns -ETIMEDOUT in case of failing to reach the requested state after
3792 * multiple retries; else will return 0 in case of success.
3794 static int i40e_pf_txq_wait(struct i40e_pf
*pf
, int pf_q
, bool enable
)
3799 for (i
= 0; i
< I40E_QUEUE_WAIT_RETRY_LIMIT
; i
++) {
3800 tx_reg
= rd32(&pf
->hw
, I40E_QTX_ENA(pf_q
));
3801 if (enable
== !!(tx_reg
& I40E_QTX_ENA_QENA_STAT_MASK
))
3804 usleep_range(10, 20);
3806 if (i
>= I40E_QUEUE_WAIT_RETRY_LIMIT
)
3813 * i40e_vsi_control_tx - Start or stop a VSI's rings
3814 * @vsi: the VSI being configured
3815 * @enable: start or stop the rings
3817 static int i40e_vsi_control_tx(struct i40e_vsi
*vsi
, bool enable
)
3819 struct i40e_pf
*pf
= vsi
->back
;
3820 struct i40e_hw
*hw
= &pf
->hw
;
3821 int i
, j
, pf_q
, ret
= 0;
3824 pf_q
= vsi
->base_queue
;
3825 for (i
= 0; i
< vsi
->num_queue_pairs
; i
++, pf_q
++) {
3827 /* warn the TX unit of coming changes */
3828 i40e_pre_tx_queue_cfg(&pf
->hw
, pf_q
, enable
);
3830 usleep_range(10, 20);
3832 for (j
= 0; j
< 50; j
++) {
3833 tx_reg
= rd32(hw
, I40E_QTX_ENA(pf_q
));
3834 if (((tx_reg
>> I40E_QTX_ENA_QENA_REQ_SHIFT
) & 1) ==
3835 ((tx_reg
>> I40E_QTX_ENA_QENA_STAT_SHIFT
) & 1))
3837 usleep_range(1000, 2000);
3839 /* Skip if the queue is already in the requested state */
3840 if (enable
== !!(tx_reg
& I40E_QTX_ENA_QENA_STAT_MASK
))
3843 /* turn on/off the queue */
3845 wr32(hw
, I40E_QTX_HEAD(pf_q
), 0);
3846 tx_reg
|= I40E_QTX_ENA_QENA_REQ_MASK
;
3848 tx_reg
&= ~I40E_QTX_ENA_QENA_REQ_MASK
;
3851 wr32(hw
, I40E_QTX_ENA(pf_q
), tx_reg
);
3852 /* No waiting for the Tx queue to disable */
3853 if (!enable
&& test_bit(__I40E_PORT_TX_SUSPENDED
, &pf
->state
))
3856 /* wait for the change to finish */
3857 ret
= i40e_pf_txq_wait(pf
, pf_q
, enable
);
3859 dev_info(&pf
->pdev
->dev
,
3860 "VSI seid %d Tx ring %d %sable timeout\n",
3861 vsi
->seid
, pf_q
, (enable
? "en" : "dis"));
3866 if (hw
->revision_id
== 0)
3872 * i40e_pf_rxq_wait - Wait for a PF's Rx queue to be enabled or disabled
3873 * @pf: the PF being configured
3874 * @pf_q: the PF queue
3875 * @enable: enable or disable state of the queue
3877 * This routine will wait for the given Rx queue of the PF to reach the
3878 * enabled or disabled state.
3879 * Returns -ETIMEDOUT in case of failing to reach the requested state after
3880 * multiple retries; else will return 0 in case of success.
3882 static int i40e_pf_rxq_wait(struct i40e_pf
*pf
, int pf_q
, bool enable
)
3887 for (i
= 0; i
< I40E_QUEUE_WAIT_RETRY_LIMIT
; i
++) {
3888 rx_reg
= rd32(&pf
->hw
, I40E_QRX_ENA(pf_q
));
3889 if (enable
== !!(rx_reg
& I40E_QRX_ENA_QENA_STAT_MASK
))
3892 usleep_range(10, 20);
3894 if (i
>= I40E_QUEUE_WAIT_RETRY_LIMIT
)
3901 * i40e_vsi_control_rx - Start or stop a VSI's rings
3902 * @vsi: the VSI being configured
3903 * @enable: start or stop the rings
3905 static int i40e_vsi_control_rx(struct i40e_vsi
*vsi
, bool enable
)
3907 struct i40e_pf
*pf
= vsi
->back
;
3908 struct i40e_hw
*hw
= &pf
->hw
;
3909 int i
, j
, pf_q
, ret
= 0;
3912 pf_q
= vsi
->base_queue
;
3913 for (i
= 0; i
< vsi
->num_queue_pairs
; i
++, pf_q
++) {
3914 for (j
= 0; j
< 50; j
++) {
3915 rx_reg
= rd32(hw
, I40E_QRX_ENA(pf_q
));
3916 if (((rx_reg
>> I40E_QRX_ENA_QENA_REQ_SHIFT
) & 1) ==
3917 ((rx_reg
>> I40E_QRX_ENA_QENA_STAT_SHIFT
) & 1))
3919 usleep_range(1000, 2000);
3922 /* Skip if the queue is already in the requested state */
3923 if (enable
== !!(rx_reg
& I40E_QRX_ENA_QENA_STAT_MASK
))
3926 /* turn on/off the queue */
3928 rx_reg
|= I40E_QRX_ENA_QENA_REQ_MASK
;
3930 rx_reg
&= ~I40E_QRX_ENA_QENA_REQ_MASK
;
3931 wr32(hw
, I40E_QRX_ENA(pf_q
), rx_reg
);
3933 /* wait for the change to finish */
3934 ret
= i40e_pf_rxq_wait(pf
, pf_q
, enable
);
3936 dev_info(&pf
->pdev
->dev
,
3937 "VSI seid %d Rx ring %d %sable timeout\n",
3938 vsi
->seid
, pf_q
, (enable
? "en" : "dis"));
3947 * i40e_vsi_control_rings - Start or stop a VSI's rings
3948 * @vsi: the VSI being configured
3949 * @enable: start or stop the rings
3951 int i40e_vsi_control_rings(struct i40e_vsi
*vsi
, bool request
)
3955 /* do rx first for enable and last for disable */
3957 ret
= i40e_vsi_control_rx(vsi
, request
);
3960 ret
= i40e_vsi_control_tx(vsi
, request
);
3962 /* Ignore return value, we need to shutdown whatever we can */
3963 i40e_vsi_control_tx(vsi
, request
);
3964 i40e_vsi_control_rx(vsi
, request
);
3971 * i40e_vsi_free_irq - Free the irq association with the OS
3972 * @vsi: the VSI being configured
3974 static void i40e_vsi_free_irq(struct i40e_vsi
*vsi
)
3976 struct i40e_pf
*pf
= vsi
->back
;
3977 struct i40e_hw
*hw
= &pf
->hw
;
3978 int base
= vsi
->base_vector
;
3982 if (pf
->flags
& I40E_FLAG_MSIX_ENABLED
) {
3983 if (!vsi
->q_vectors
)
3986 if (!vsi
->irqs_ready
)
3989 vsi
->irqs_ready
= false;
3990 for (i
= 0; i
< vsi
->num_q_vectors
; i
++) {
3991 u16 vector
= i
+ base
;
3993 /* free only the irqs that were actually requested */
3994 if (!vsi
->q_vectors
[i
] ||
3995 !vsi
->q_vectors
[i
]->num_ringpairs
)
3998 /* clear the affinity_mask in the IRQ descriptor */
3999 irq_set_affinity_hint(pf
->msix_entries
[vector
].vector
,
4001 free_irq(pf
->msix_entries
[vector
].vector
,
4004 /* Tear down the interrupt queue link list
4006 * We know that they come in pairs and always
4007 * the Rx first, then the Tx. To clear the
4008 * link list, stick the EOL value into the
4009 * next_q field of the registers.
4011 val
= rd32(hw
, I40E_PFINT_LNKLSTN(vector
- 1));
4012 qp
= (val
& I40E_PFINT_LNKLSTN_FIRSTQ_INDX_MASK
)
4013 >> I40E_PFINT_LNKLSTN_FIRSTQ_INDX_SHIFT
;
4014 val
|= I40E_QUEUE_END_OF_LIST
4015 << I40E_PFINT_LNKLSTN_FIRSTQ_INDX_SHIFT
;
4016 wr32(hw
, I40E_PFINT_LNKLSTN(vector
- 1), val
);
4018 while (qp
!= I40E_QUEUE_END_OF_LIST
) {
4021 val
= rd32(hw
, I40E_QINT_RQCTL(qp
));
4023 val
&= ~(I40E_QINT_RQCTL_MSIX_INDX_MASK
|
4024 I40E_QINT_RQCTL_MSIX0_INDX_MASK
|
4025 I40E_QINT_RQCTL_CAUSE_ENA_MASK
|
4026 I40E_QINT_RQCTL_INTEVENT_MASK
);
4028 val
|= (I40E_QINT_RQCTL_ITR_INDX_MASK
|
4029 I40E_QINT_RQCTL_NEXTQ_INDX_MASK
);
4031 wr32(hw
, I40E_QINT_RQCTL(qp
), val
);
4033 val
= rd32(hw
, I40E_QINT_TQCTL(qp
));
4035 next
= (val
& I40E_QINT_TQCTL_NEXTQ_INDX_MASK
)
4036 >> I40E_QINT_TQCTL_NEXTQ_INDX_SHIFT
;
4038 val
&= ~(I40E_QINT_TQCTL_MSIX_INDX_MASK
|
4039 I40E_QINT_TQCTL_MSIX0_INDX_MASK
|
4040 I40E_QINT_TQCTL_CAUSE_ENA_MASK
|
4041 I40E_QINT_TQCTL_INTEVENT_MASK
);
4043 val
|= (I40E_QINT_TQCTL_ITR_INDX_MASK
|
4044 I40E_QINT_TQCTL_NEXTQ_INDX_MASK
);
4046 wr32(hw
, I40E_QINT_TQCTL(qp
), val
);
4051 free_irq(pf
->pdev
->irq
, pf
);
4053 val
= rd32(hw
, I40E_PFINT_LNKLST0
);
4054 qp
= (val
& I40E_PFINT_LNKLSTN_FIRSTQ_INDX_MASK
)
4055 >> I40E_PFINT_LNKLSTN_FIRSTQ_INDX_SHIFT
;
4056 val
|= I40E_QUEUE_END_OF_LIST
4057 << I40E_PFINT_LNKLST0_FIRSTQ_INDX_SHIFT
;
4058 wr32(hw
, I40E_PFINT_LNKLST0
, val
);
4060 val
= rd32(hw
, I40E_QINT_RQCTL(qp
));
4061 val
&= ~(I40E_QINT_RQCTL_MSIX_INDX_MASK
|
4062 I40E_QINT_RQCTL_MSIX0_INDX_MASK
|
4063 I40E_QINT_RQCTL_CAUSE_ENA_MASK
|
4064 I40E_QINT_RQCTL_INTEVENT_MASK
);
4066 val
|= (I40E_QINT_RQCTL_ITR_INDX_MASK
|
4067 I40E_QINT_RQCTL_NEXTQ_INDX_MASK
);
4069 wr32(hw
, I40E_QINT_RQCTL(qp
), val
);
4071 val
= rd32(hw
, I40E_QINT_TQCTL(qp
));
4073 val
&= ~(I40E_QINT_TQCTL_MSIX_INDX_MASK
|
4074 I40E_QINT_TQCTL_MSIX0_INDX_MASK
|
4075 I40E_QINT_TQCTL_CAUSE_ENA_MASK
|
4076 I40E_QINT_TQCTL_INTEVENT_MASK
);
4078 val
|= (I40E_QINT_TQCTL_ITR_INDX_MASK
|
4079 I40E_QINT_TQCTL_NEXTQ_INDX_MASK
);
4081 wr32(hw
, I40E_QINT_TQCTL(qp
), val
);
4086 * i40e_free_q_vector - Free memory allocated for specific interrupt vector
4087 * @vsi: the VSI being configured
4088 * @v_idx: Index of vector to be freed
4090 * This function frees the memory allocated to the q_vector. In addition if
4091 * NAPI is enabled it will delete any references to the NAPI struct prior
4092 * to freeing the q_vector.
4094 static void i40e_free_q_vector(struct i40e_vsi
*vsi
, int v_idx
)
4096 struct i40e_q_vector
*q_vector
= vsi
->q_vectors
[v_idx
];
4097 struct i40e_ring
*ring
;
4102 /* disassociate q_vector from rings */
4103 i40e_for_each_ring(ring
, q_vector
->tx
)
4104 ring
->q_vector
= NULL
;
4106 i40e_for_each_ring(ring
, q_vector
->rx
)
4107 ring
->q_vector
= NULL
;
4109 /* only VSI w/ an associated netdev is set up w/ NAPI */
4111 netif_napi_del(&q_vector
->napi
);
4113 vsi
->q_vectors
[v_idx
] = NULL
;
4115 kfree_rcu(q_vector
, rcu
);
4119 * i40e_vsi_free_q_vectors - Free memory allocated for interrupt vectors
4120 * @vsi: the VSI being un-configured
4122 * This frees the memory allocated to the q_vectors and
4123 * deletes references to the NAPI struct.
4125 static void i40e_vsi_free_q_vectors(struct i40e_vsi
*vsi
)
4129 for (v_idx
= 0; v_idx
< vsi
->num_q_vectors
; v_idx
++)
4130 i40e_free_q_vector(vsi
, v_idx
);
4134 * i40e_reset_interrupt_capability - Disable interrupt setup in OS
4135 * @pf: board private structure
4137 static void i40e_reset_interrupt_capability(struct i40e_pf
*pf
)
4139 /* If we're in Legacy mode, the interrupt was cleaned in vsi_close */
4140 if (pf
->flags
& I40E_FLAG_MSIX_ENABLED
) {
4141 pci_disable_msix(pf
->pdev
);
4142 kfree(pf
->msix_entries
);
4143 pf
->msix_entries
= NULL
;
4144 kfree(pf
->irq_pile
);
4145 pf
->irq_pile
= NULL
;
4146 } else if (pf
->flags
& I40E_FLAG_MSI_ENABLED
) {
4147 pci_disable_msi(pf
->pdev
);
4149 pf
->flags
&= ~(I40E_FLAG_MSIX_ENABLED
| I40E_FLAG_MSI_ENABLED
);
4153 * i40e_clear_interrupt_scheme - Clear the current interrupt scheme settings
4154 * @pf: board private structure
4156 * We go through and clear interrupt specific resources and reset the structure
4157 * to pre-load conditions
4159 static void i40e_clear_interrupt_scheme(struct i40e_pf
*pf
)
4163 i40e_stop_misc_vector(pf
);
4164 if (pf
->flags
& I40E_FLAG_MSIX_ENABLED
) {
4165 synchronize_irq(pf
->msix_entries
[0].vector
);
4166 free_irq(pf
->msix_entries
[0].vector
, pf
);
4169 i40e_put_lump(pf
->irq_pile
, 0, I40E_PILE_VALID_BIT
-1);
4170 for (i
= 0; i
< pf
->num_alloc_vsi
; i
++)
4172 i40e_vsi_free_q_vectors(pf
->vsi
[i
]);
4173 i40e_reset_interrupt_capability(pf
);
4177 * i40e_napi_enable_all - Enable NAPI for all q_vectors in the VSI
4178 * @vsi: the VSI being configured
4180 static void i40e_napi_enable_all(struct i40e_vsi
*vsi
)
4187 for (q_idx
= 0; q_idx
< vsi
->num_q_vectors
; q_idx
++)
4188 napi_enable(&vsi
->q_vectors
[q_idx
]->napi
);
4192 * i40e_napi_disable_all - Disable NAPI for all q_vectors in the VSI
4193 * @vsi: the VSI being configured
4195 static void i40e_napi_disable_all(struct i40e_vsi
*vsi
)
4202 for (q_idx
= 0; q_idx
< vsi
->num_q_vectors
; q_idx
++)
4203 napi_disable(&vsi
->q_vectors
[q_idx
]->napi
);
4207 * i40e_vsi_close - Shut down a VSI
4208 * @vsi: the vsi to be quelled
4210 static void i40e_vsi_close(struct i40e_vsi
*vsi
)
4212 if (!test_and_set_bit(__I40E_DOWN
, &vsi
->state
))
4214 i40e_vsi_free_irq(vsi
);
4215 i40e_vsi_free_tx_resources(vsi
);
4216 i40e_vsi_free_rx_resources(vsi
);
4217 vsi
->current_netdev_flags
= 0;
4221 * i40e_quiesce_vsi - Pause a given VSI
4222 * @vsi: the VSI being paused
4224 static void i40e_quiesce_vsi(struct i40e_vsi
*vsi
)
4226 if (test_bit(__I40E_DOWN
, &vsi
->state
))
4229 /* No need to disable FCoE VSI when Tx suspended */
4230 if ((test_bit(__I40E_PORT_TX_SUSPENDED
, &vsi
->back
->state
)) &&
4231 vsi
->type
== I40E_VSI_FCOE
) {
4232 dev_dbg(&vsi
->back
->pdev
->dev
,
4233 "VSI seid %d skipping FCoE VSI disable\n", vsi
->seid
);
4237 set_bit(__I40E_NEEDS_RESTART
, &vsi
->state
);
4238 if (vsi
->netdev
&& netif_running(vsi
->netdev
))
4239 vsi
->netdev
->netdev_ops
->ndo_stop(vsi
->netdev
);
4241 i40e_vsi_close(vsi
);
4245 * i40e_unquiesce_vsi - Resume a given VSI
4246 * @vsi: the VSI being resumed
4248 static void i40e_unquiesce_vsi(struct i40e_vsi
*vsi
)
4250 if (!test_bit(__I40E_NEEDS_RESTART
, &vsi
->state
))
4253 clear_bit(__I40E_NEEDS_RESTART
, &vsi
->state
);
4254 if (vsi
->netdev
&& netif_running(vsi
->netdev
))
4255 vsi
->netdev
->netdev_ops
->ndo_open(vsi
->netdev
);
4257 i40e_vsi_open(vsi
); /* this clears the DOWN bit */
4261 * i40e_pf_quiesce_all_vsi - Pause all VSIs on a PF
4264 static void i40e_pf_quiesce_all_vsi(struct i40e_pf
*pf
)
4268 for (v
= 0; v
< pf
->num_alloc_vsi
; v
++) {
4270 i40e_quiesce_vsi(pf
->vsi
[v
]);
4275 * i40e_pf_unquiesce_all_vsi - Resume all VSIs on a PF
4278 static void i40e_pf_unquiesce_all_vsi(struct i40e_pf
*pf
)
4282 for (v
= 0; v
< pf
->num_alloc_vsi
; v
++) {
4284 i40e_unquiesce_vsi(pf
->vsi
[v
]);
4288 #ifdef CONFIG_I40E_DCB
4290 * i40e_vsi_wait_txq_disabled - Wait for VSI's queues to be disabled
4291 * @vsi: the VSI being configured
4293 * This function waits for the given VSI's Tx queues to be disabled.
4295 static int i40e_vsi_wait_txq_disabled(struct i40e_vsi
*vsi
)
4297 struct i40e_pf
*pf
= vsi
->back
;
4300 pf_q
= vsi
->base_queue
;
4301 for (i
= 0; i
< vsi
->num_queue_pairs
; i
++, pf_q
++) {
4302 /* Check and wait for the disable status of the queue */
4303 ret
= i40e_pf_txq_wait(pf
, pf_q
, false);
4305 dev_info(&pf
->pdev
->dev
,
4306 "VSI seid %d Tx ring %d disable timeout\n",
4316 * i40e_pf_wait_txq_disabled - Wait for all queues of PF VSIs to be disabled
4319 * This function waits for the Tx queues to be in disabled state for all the
4320 * VSIs that are managed by this PF.
4322 static int i40e_pf_wait_txq_disabled(struct i40e_pf
*pf
)
4326 for (v
= 0; v
< pf
->hw
.func_caps
.num_vsis
; v
++) {
4327 /* No need to wait for FCoE VSI queues */
4328 if (pf
->vsi
[v
] && pf
->vsi
[v
]->type
!= I40E_VSI_FCOE
) {
4329 ret
= i40e_vsi_wait_txq_disabled(pf
->vsi
[v
]);
4341 * i40e_detect_recover_hung_queue - Function to detect and recover hung_queue
4342 * @q_idx: TX queue number
4343 * @vsi: Pointer to VSI struct
4345 * This function checks specified queue for given VSI. Detects hung condition.
4346 * Sets hung bit since it is two step process. Before next run of service task
4347 * if napi_poll runs, it reset 'hung' bit for respective q_vector. If not,
4348 * hung condition remain unchanged and during subsequent run, this function
4349 * issues SW interrupt to recover from hung condition.
4351 static void i40e_detect_recover_hung_queue(int q_idx
, struct i40e_vsi
*vsi
)
4353 struct i40e_ring
*tx_ring
= NULL
;
4355 u32 head
, val
, tx_pending
;
4360 /* now that we have an index, find the tx_ring struct */
4361 for (i
= 0; i
< vsi
->num_queue_pairs
; i
++) {
4362 if (vsi
->tx_rings
[i
] && vsi
->tx_rings
[i
]->desc
) {
4363 if (q_idx
== vsi
->tx_rings
[i
]->queue_index
) {
4364 tx_ring
= vsi
->tx_rings
[i
];
4373 /* Read interrupt register */
4374 if (pf
->flags
& I40E_FLAG_MSIX_ENABLED
)
4376 I40E_PFINT_DYN_CTLN(tx_ring
->q_vector
->v_idx
+
4377 tx_ring
->vsi
->base_vector
- 1));
4379 val
= rd32(&pf
->hw
, I40E_PFINT_DYN_CTL0
);
4381 /* Bail out if interrupts are disabled because napi_poll
4382 * execution in-progress or will get scheduled soon.
4383 * napi_poll cleans TX and RX queues and updates 'next_to_clean'.
4385 if (!(val
& I40E_PFINT_DYN_CTLN_INTENA_MASK
))
4388 head
= i40e_get_head(tx_ring
);
4390 tx_pending
= i40e_get_tx_pending(tx_ring
);
4392 /* HW is done executing descriptors, updated HEAD write back,
4393 * but SW hasn't processed those descriptors. If interrupt is
4394 * not generated from this point ON, it could result into
4395 * dev_watchdog detecting timeout on those netdev_queue,
4396 * hence proactively trigger SW interrupt.
4399 /* NAPI Poll didn't run and clear since it was set */
4400 if (test_and_clear_bit(I40E_Q_VECTOR_HUNG_DETECT
,
4401 &tx_ring
->q_vector
->hung_detected
)) {
4402 netdev_info(vsi
->netdev
, "VSI_seid %d, Hung TX queue %d, tx_pending: %d, NTC:0x%x, HWB: 0x%x, NTU: 0x%x, TAIL: 0x%x\n",
4403 vsi
->seid
, q_idx
, tx_pending
,
4404 tx_ring
->next_to_clean
, head
,
4405 tx_ring
->next_to_use
,
4406 readl(tx_ring
->tail
));
4407 netdev_info(vsi
->netdev
, "VSI_seid %d, Issuing force_wb for TX queue %d, Interrupt Reg: 0x%x\n",
4408 vsi
->seid
, q_idx
, val
);
4409 i40e_force_wb(vsi
, tx_ring
->q_vector
);
4411 /* First Chance - detected possible hung */
4412 set_bit(I40E_Q_VECTOR_HUNG_DETECT
,
4413 &tx_ring
->q_vector
->hung_detected
);
4419 * i40e_detect_recover_hung - Function to detect and recover hung_queues
4420 * @pf: pointer to PF struct
4422 * LAN VSI has netdev and netdev has TX queues. This function is to check
4423 * each of those TX queues if they are hung, trigger recovery by issuing
4426 static void i40e_detect_recover_hung(struct i40e_pf
*pf
)
4428 struct net_device
*netdev
;
4429 struct i40e_vsi
*vsi
;
4432 /* Only for LAN VSI */
4433 vsi
= pf
->vsi
[pf
->lan_vsi
];
4438 /* Make sure, VSI state is not DOWN/RECOVERY_PENDING */
4439 if (test_bit(__I40E_DOWN
, &vsi
->back
->state
) ||
4440 test_bit(__I40E_RESET_RECOVERY_PENDING
, &vsi
->back
->state
))
4443 /* Make sure type is MAIN VSI */
4444 if (vsi
->type
!= I40E_VSI_MAIN
)
4447 netdev
= vsi
->netdev
;
4451 /* Bail out if netif_carrier is not OK */
4452 if (!netif_carrier_ok(netdev
))
4455 /* Go thru' TX queues for netdev */
4456 for (i
= 0; i
< netdev
->num_tx_queues
; i
++) {
4457 struct netdev_queue
*q
;
4459 q
= netdev_get_tx_queue(netdev
, i
);
4461 i40e_detect_recover_hung_queue(i
, vsi
);
4466 * i40e_get_iscsi_tc_map - Return TC map for iSCSI APP
4467 * @pf: pointer to PF
4469 * Get TC map for ISCSI PF type that will include iSCSI TC
4472 static u8
i40e_get_iscsi_tc_map(struct i40e_pf
*pf
)
4474 struct i40e_dcb_app_priority_table app
;
4475 struct i40e_hw
*hw
= &pf
->hw
;
4476 u8 enabled_tc
= 1; /* TC0 is always enabled */
4478 /* Get the iSCSI APP TLV */
4479 struct i40e_dcbx_config
*dcbcfg
= &hw
->local_dcbx_config
;
4481 for (i
= 0; i
< dcbcfg
->numapps
; i
++) {
4482 app
= dcbcfg
->app
[i
];
4483 if (app
.selector
== I40E_APP_SEL_TCPIP
&&
4484 app
.protocolid
== I40E_APP_PROTOID_ISCSI
) {
4485 tc
= dcbcfg
->etscfg
.prioritytable
[app
.priority
];
4486 enabled_tc
|= BIT(tc
);
4495 * i40e_dcb_get_num_tc - Get the number of TCs from DCBx config
4496 * @dcbcfg: the corresponding DCBx configuration structure
4498 * Return the number of TCs from given DCBx configuration
4500 static u8
i40e_dcb_get_num_tc(struct i40e_dcbx_config
*dcbcfg
)
4505 /* Scan the ETS Config Priority Table to find
4506 * traffic class enabled for a given priority
4507 * and use the traffic class index to get the
4508 * number of traffic classes enabled
4510 for (i
= 0; i
< I40E_MAX_USER_PRIORITY
; i
++) {
4511 if (dcbcfg
->etscfg
.prioritytable
[i
] > num_tc
)
4512 num_tc
= dcbcfg
->etscfg
.prioritytable
[i
];
4515 /* Traffic class index starts from zero so
4516 * increment to return the actual count
4522 * i40e_dcb_get_enabled_tc - Get enabled traffic classes
4523 * @dcbcfg: the corresponding DCBx configuration structure
4525 * Query the current DCB configuration and return the number of
4526 * traffic classes enabled from the given DCBX config
4528 static u8
i40e_dcb_get_enabled_tc(struct i40e_dcbx_config
*dcbcfg
)
4530 u8 num_tc
= i40e_dcb_get_num_tc(dcbcfg
);
4534 for (i
= 0; i
< num_tc
; i
++)
4535 enabled_tc
|= BIT(i
);
4541 * i40e_pf_get_num_tc - Get enabled traffic classes for PF
4542 * @pf: PF being queried
4544 * Return number of traffic classes enabled for the given PF
4546 static u8
i40e_pf_get_num_tc(struct i40e_pf
*pf
)
4548 struct i40e_hw
*hw
= &pf
->hw
;
4551 struct i40e_dcbx_config
*dcbcfg
= &hw
->local_dcbx_config
;
4553 /* If DCB is not enabled then always in single TC */
4554 if (!(pf
->flags
& I40E_FLAG_DCB_ENABLED
))
4557 /* SFP mode will be enabled for all TCs on port */
4558 if (!(pf
->flags
& I40E_FLAG_MFP_ENABLED
))
4559 return i40e_dcb_get_num_tc(dcbcfg
);
4561 /* MFP mode return count of enabled TCs for this PF */
4562 if (pf
->hw
.func_caps
.iscsi
)
4563 enabled_tc
= i40e_get_iscsi_tc_map(pf
);
4565 return 1; /* Only TC0 */
4567 /* At least have TC0 */
4568 enabled_tc
= (enabled_tc
? enabled_tc
: 0x1);
4569 for (i
= 0; i
< I40E_MAX_TRAFFIC_CLASS
; i
++) {
4570 if (enabled_tc
& BIT(i
))
4577 * i40e_pf_get_default_tc - Get bitmap for first enabled TC
4578 * @pf: PF being queried
4580 * Return a bitmap for first enabled traffic class for this PF.
4582 static u8
i40e_pf_get_default_tc(struct i40e_pf
*pf
)
4584 u8 enabled_tc
= pf
->hw
.func_caps
.enabled_tcmap
;
4588 return 0x1; /* TC0 */
4590 /* Find the first enabled TC */
4591 for (i
= 0; i
< I40E_MAX_TRAFFIC_CLASS
; i
++) {
4592 if (enabled_tc
& BIT(i
))
4600 * i40e_pf_get_pf_tc_map - Get bitmap for enabled traffic classes
4601 * @pf: PF being queried
4603 * Return a bitmap for enabled traffic classes for this PF.
4605 static u8
i40e_pf_get_tc_map(struct i40e_pf
*pf
)
4607 /* If DCB is not enabled for this PF then just return default TC */
4608 if (!(pf
->flags
& I40E_FLAG_DCB_ENABLED
))
4609 return i40e_pf_get_default_tc(pf
);
4611 /* SFP mode we want PF to be enabled for all TCs */
4612 if (!(pf
->flags
& I40E_FLAG_MFP_ENABLED
))
4613 return i40e_dcb_get_enabled_tc(&pf
->hw
.local_dcbx_config
);
4615 /* MFP enabled and iSCSI PF type */
4616 if (pf
->hw
.func_caps
.iscsi
)
4617 return i40e_get_iscsi_tc_map(pf
);
4619 return i40e_pf_get_default_tc(pf
);
4623 * i40e_vsi_get_bw_info - Query VSI BW Information
4624 * @vsi: the VSI being queried
4626 * Returns 0 on success, negative value on failure
4628 static int i40e_vsi_get_bw_info(struct i40e_vsi
*vsi
)
4630 struct i40e_aqc_query_vsi_ets_sla_config_resp bw_ets_config
= {0};
4631 struct i40e_aqc_query_vsi_bw_config_resp bw_config
= {0};
4632 struct i40e_pf
*pf
= vsi
->back
;
4633 struct i40e_hw
*hw
= &pf
->hw
;
4638 /* Get the VSI level BW configuration */
4639 ret
= i40e_aq_query_vsi_bw_config(hw
, vsi
->seid
, &bw_config
, NULL
);
4641 dev_info(&pf
->pdev
->dev
,
4642 "couldn't get PF vsi bw config, err %s aq_err %s\n",
4643 i40e_stat_str(&pf
->hw
, ret
),
4644 i40e_aq_str(&pf
->hw
, pf
->hw
.aq
.asq_last_status
));
4648 /* Get the VSI level BW configuration per TC */
4649 ret
= i40e_aq_query_vsi_ets_sla_config(hw
, vsi
->seid
, &bw_ets_config
,
4652 dev_info(&pf
->pdev
->dev
,
4653 "couldn't get PF vsi ets bw config, err %s aq_err %s\n",
4654 i40e_stat_str(&pf
->hw
, ret
),
4655 i40e_aq_str(&pf
->hw
, pf
->hw
.aq
.asq_last_status
));
4659 if (bw_config
.tc_valid_bits
!= bw_ets_config
.tc_valid_bits
) {
4660 dev_info(&pf
->pdev
->dev
,
4661 "Enabled TCs mismatch from querying VSI BW info 0x%08x 0x%08x\n",
4662 bw_config
.tc_valid_bits
,
4663 bw_ets_config
.tc_valid_bits
);
4664 /* Still continuing */
4667 vsi
->bw_limit
= le16_to_cpu(bw_config
.port_bw_limit
);
4668 vsi
->bw_max_quanta
= bw_config
.max_bw
;
4669 tc_bw_max
= le16_to_cpu(bw_ets_config
.tc_bw_max
[0]) |
4670 (le16_to_cpu(bw_ets_config
.tc_bw_max
[1]) << 16);
4671 for (i
= 0; i
< I40E_MAX_TRAFFIC_CLASS
; i
++) {
4672 vsi
->bw_ets_share_credits
[i
] = bw_ets_config
.share_credits
[i
];
4673 vsi
->bw_ets_limit_credits
[i
] =
4674 le16_to_cpu(bw_ets_config
.credits
[i
]);
4675 /* 3 bits out of 4 for each TC */
4676 vsi
->bw_ets_max_quanta
[i
] = (u8
)((tc_bw_max
>> (i
*4)) & 0x7);
4683 * i40e_vsi_configure_bw_alloc - Configure VSI BW allocation per TC
4684 * @vsi: the VSI being configured
4685 * @enabled_tc: TC bitmap
4686 * @bw_credits: BW shared credits per TC
4688 * Returns 0 on success, negative value on failure
4690 static int i40e_vsi_configure_bw_alloc(struct i40e_vsi
*vsi
, u8 enabled_tc
,
4693 struct i40e_aqc_configure_vsi_tc_bw_data bw_data
;
4697 bw_data
.tc_valid_bits
= enabled_tc
;
4698 for (i
= 0; i
< I40E_MAX_TRAFFIC_CLASS
; i
++)
4699 bw_data
.tc_bw_credits
[i
] = bw_share
[i
];
4701 ret
= i40e_aq_config_vsi_tc_bw(&vsi
->back
->hw
, vsi
->seid
, &bw_data
,
4704 dev_info(&vsi
->back
->pdev
->dev
,
4705 "AQ command Config VSI BW allocation per TC failed = %d\n",
4706 vsi
->back
->hw
.aq
.asq_last_status
);
4710 for (i
= 0; i
< I40E_MAX_TRAFFIC_CLASS
; i
++)
4711 vsi
->info
.qs_handle
[i
] = bw_data
.qs_handles
[i
];
4717 * i40e_vsi_config_netdev_tc - Setup the netdev TC configuration
4718 * @vsi: the VSI being configured
4719 * @enabled_tc: TC map to be enabled
4722 static void i40e_vsi_config_netdev_tc(struct i40e_vsi
*vsi
, u8 enabled_tc
)
4724 struct net_device
*netdev
= vsi
->netdev
;
4725 struct i40e_pf
*pf
= vsi
->back
;
4726 struct i40e_hw
*hw
= &pf
->hw
;
4729 struct i40e_dcbx_config
*dcbcfg
= &hw
->local_dcbx_config
;
4735 netdev_reset_tc(netdev
);
4739 /* Set up actual enabled TCs on the VSI */
4740 if (netdev_set_num_tc(netdev
, vsi
->tc_config
.numtc
))
4743 /* set per TC queues for the VSI */
4744 for (i
= 0; i
< I40E_MAX_TRAFFIC_CLASS
; i
++) {
4745 /* Only set TC queues for enabled tcs
4747 * e.g. For a VSI that has TC0 and TC3 enabled the
4748 * enabled_tc bitmap would be 0x00001001; the driver
4749 * will set the numtc for netdev as 2 that will be
4750 * referenced by the netdev layer as TC 0 and 1.
4752 if (vsi
->tc_config
.enabled_tc
& BIT(i
))
4753 netdev_set_tc_queue(netdev
,
4754 vsi
->tc_config
.tc_info
[i
].netdev_tc
,
4755 vsi
->tc_config
.tc_info
[i
].qcount
,
4756 vsi
->tc_config
.tc_info
[i
].qoffset
);
4759 /* Assign UP2TC map for the VSI */
4760 for (i
= 0; i
< I40E_MAX_USER_PRIORITY
; i
++) {
4761 /* Get the actual TC# for the UP */
4762 u8 ets_tc
= dcbcfg
->etscfg
.prioritytable
[i
];
4763 /* Get the mapped netdev TC# for the UP */
4764 netdev_tc
= vsi
->tc_config
.tc_info
[ets_tc
].netdev_tc
;
4765 netdev_set_prio_tc_map(netdev
, i
, netdev_tc
);
4770 * i40e_vsi_update_queue_map - Update our copy of VSi info with new queue map
4771 * @vsi: the VSI being configured
4772 * @ctxt: the ctxt buffer returned from AQ VSI update param command
4774 static void i40e_vsi_update_queue_map(struct i40e_vsi
*vsi
,
4775 struct i40e_vsi_context
*ctxt
)
4777 /* copy just the sections touched not the entire info
4778 * since not all sections are valid as returned by
4781 vsi
->info
.mapping_flags
= ctxt
->info
.mapping_flags
;
4782 memcpy(&vsi
->info
.queue_mapping
,
4783 &ctxt
->info
.queue_mapping
, sizeof(vsi
->info
.queue_mapping
));
4784 memcpy(&vsi
->info
.tc_mapping
, ctxt
->info
.tc_mapping
,
4785 sizeof(vsi
->info
.tc_mapping
));
4789 * i40e_vsi_config_tc - Configure VSI Tx Scheduler for given TC map
4790 * @vsi: VSI to be configured
4791 * @enabled_tc: TC bitmap
4793 * This configures a particular VSI for TCs that are mapped to the
4794 * given TC bitmap. It uses default bandwidth share for TCs across
4795 * VSIs to configure TC for a particular VSI.
4798 * It is expected that the VSI queues have been quisced before calling
4801 static int i40e_vsi_config_tc(struct i40e_vsi
*vsi
, u8 enabled_tc
)
4803 u8 bw_share
[I40E_MAX_TRAFFIC_CLASS
] = {0};
4804 struct i40e_vsi_context ctxt
;
4808 /* Check if enabled_tc is same as existing or new TCs */
4809 if (vsi
->tc_config
.enabled_tc
== enabled_tc
)
4812 /* Enable ETS TCs with equal BW Share for now across all VSIs */
4813 for (i
= 0; i
< I40E_MAX_TRAFFIC_CLASS
; i
++) {
4814 if (enabled_tc
& BIT(i
))
4818 ret
= i40e_vsi_configure_bw_alloc(vsi
, enabled_tc
, bw_share
);
4820 dev_info(&vsi
->back
->pdev
->dev
,
4821 "Failed configuring TC map %d for VSI %d\n",
4822 enabled_tc
, vsi
->seid
);
4826 /* Update Queue Pairs Mapping for currently enabled UPs */
4827 ctxt
.seid
= vsi
->seid
;
4828 ctxt
.pf_num
= vsi
->back
->hw
.pf_id
;
4830 ctxt
.uplink_seid
= vsi
->uplink_seid
;
4831 ctxt
.info
= vsi
->info
;
4832 i40e_vsi_setup_queue_map(vsi
, &ctxt
, enabled_tc
, false);
4834 /* Update the VSI after updating the VSI queue-mapping information */
4835 ret
= i40e_aq_update_vsi_params(&vsi
->back
->hw
, &ctxt
, NULL
);
4837 dev_info(&vsi
->back
->pdev
->dev
,
4838 "Update vsi tc config failed, err %s aq_err %s\n",
4839 i40e_stat_str(&vsi
->back
->hw
, ret
),
4840 i40e_aq_str(&vsi
->back
->hw
,
4841 vsi
->back
->hw
.aq
.asq_last_status
));
4844 /* update the local VSI info with updated queue map */
4845 i40e_vsi_update_queue_map(vsi
, &ctxt
);
4846 vsi
->info
.valid_sections
= 0;
4848 /* Update current VSI BW information */
4849 ret
= i40e_vsi_get_bw_info(vsi
);
4851 dev_info(&vsi
->back
->pdev
->dev
,
4852 "Failed updating vsi bw info, err %s aq_err %s\n",
4853 i40e_stat_str(&vsi
->back
->hw
, ret
),
4854 i40e_aq_str(&vsi
->back
->hw
,
4855 vsi
->back
->hw
.aq
.asq_last_status
));
4859 /* Update the netdev TC setup */
4860 i40e_vsi_config_netdev_tc(vsi
, enabled_tc
);
4866 * i40e_veb_config_tc - Configure TCs for given VEB
4868 * @enabled_tc: TC bitmap
4870 * Configures given TC bitmap for VEB (switching) element
4872 int i40e_veb_config_tc(struct i40e_veb
*veb
, u8 enabled_tc
)
4874 struct i40e_aqc_configure_switching_comp_bw_config_data bw_data
= {0};
4875 struct i40e_pf
*pf
= veb
->pf
;
4879 /* No TCs or already enabled TCs just return */
4880 if (!enabled_tc
|| veb
->enabled_tc
== enabled_tc
)
4883 bw_data
.tc_valid_bits
= enabled_tc
;
4884 /* bw_data.absolute_credits is not set (relative) */
4886 /* Enable ETS TCs with equal BW Share for now */
4887 for (i
= 0; i
< I40E_MAX_TRAFFIC_CLASS
; i
++) {
4888 if (enabled_tc
& BIT(i
))
4889 bw_data
.tc_bw_share_credits
[i
] = 1;
4892 ret
= i40e_aq_config_switch_comp_bw_config(&pf
->hw
, veb
->seid
,
4895 dev_info(&pf
->pdev
->dev
,
4896 "VEB bw config failed, err %s aq_err %s\n",
4897 i40e_stat_str(&pf
->hw
, ret
),
4898 i40e_aq_str(&pf
->hw
, pf
->hw
.aq
.asq_last_status
));
4902 /* Update the BW information */
4903 ret
= i40e_veb_get_bw_info(veb
);
4905 dev_info(&pf
->pdev
->dev
,
4906 "Failed getting veb bw config, err %s aq_err %s\n",
4907 i40e_stat_str(&pf
->hw
, ret
),
4908 i40e_aq_str(&pf
->hw
, pf
->hw
.aq
.asq_last_status
));
4915 #ifdef CONFIG_I40E_DCB
4917 * i40e_dcb_reconfigure - Reconfigure all VEBs and VSIs
4920 * Reconfigure VEB/VSIs on a given PF; it is assumed that
4921 * the caller would've quiesce all the VSIs before calling
4924 static void i40e_dcb_reconfigure(struct i40e_pf
*pf
)
4930 /* Enable the TCs available on PF to all VEBs */
4931 tc_map
= i40e_pf_get_tc_map(pf
);
4932 for (v
= 0; v
< I40E_MAX_VEB
; v
++) {
4935 ret
= i40e_veb_config_tc(pf
->veb
[v
], tc_map
);
4937 dev_info(&pf
->pdev
->dev
,
4938 "Failed configuring TC for VEB seid=%d\n",
4940 /* Will try to configure as many components */
4944 /* Update each VSI */
4945 for (v
= 0; v
< pf
->num_alloc_vsi
; v
++) {
4949 /* - Enable all TCs for the LAN VSI
4951 * - For FCoE VSI only enable the TC configured
4952 * as per the APP TLV
4954 * - For all others keep them at TC0 for now
4956 if (v
== pf
->lan_vsi
)
4957 tc_map
= i40e_pf_get_tc_map(pf
);
4959 tc_map
= i40e_pf_get_default_tc(pf
);
4961 if (pf
->vsi
[v
]->type
== I40E_VSI_FCOE
)
4962 tc_map
= i40e_get_fcoe_tc_map(pf
);
4963 #endif /* #ifdef I40E_FCOE */
4965 ret
= i40e_vsi_config_tc(pf
->vsi
[v
], tc_map
);
4967 dev_info(&pf
->pdev
->dev
,
4968 "Failed configuring TC for VSI seid=%d\n",
4970 /* Will try to configure as many components */
4972 /* Re-configure VSI vectors based on updated TC map */
4973 i40e_vsi_map_rings_to_vectors(pf
->vsi
[v
]);
4974 if (pf
->vsi
[v
]->netdev
)
4975 i40e_dcbnl_set_all(pf
->vsi
[v
]);
4981 * i40e_resume_port_tx - Resume port Tx
4984 * Resume a port's Tx and issue a PF reset in case of failure to
4987 static int i40e_resume_port_tx(struct i40e_pf
*pf
)
4989 struct i40e_hw
*hw
= &pf
->hw
;
4992 ret
= i40e_aq_resume_port_tx(hw
, NULL
);
4994 dev_info(&pf
->pdev
->dev
,
4995 "Resume Port Tx failed, err %s aq_err %s\n",
4996 i40e_stat_str(&pf
->hw
, ret
),
4997 i40e_aq_str(&pf
->hw
, pf
->hw
.aq
.asq_last_status
));
4998 /* Schedule PF reset to recover */
4999 set_bit(__I40E_PF_RESET_REQUESTED
, &pf
->state
);
5000 i40e_service_event_schedule(pf
);
5007 * i40e_init_pf_dcb - Initialize DCB configuration
5008 * @pf: PF being configured
5010 * Query the current DCB configuration and cache it
5011 * in the hardware structure
5013 static int i40e_init_pf_dcb(struct i40e_pf
*pf
)
5015 struct i40e_hw
*hw
= &pf
->hw
;
5018 /* Do not enable DCB for SW1 and SW2 images even if the FW is capable */
5019 if (((pf
->hw
.aq
.fw_maj_ver
== 4) && (pf
->hw
.aq
.fw_min_ver
< 33)) ||
5020 (pf
->hw
.aq
.fw_maj_ver
< 4))
5023 /* Get the initial DCB configuration */
5024 err
= i40e_init_dcb(hw
);
5026 /* Device/Function is not DCBX capable */
5027 if ((!hw
->func_caps
.dcb
) ||
5028 (hw
->dcbx_status
== I40E_DCBX_STATUS_DISABLED
)) {
5029 dev_info(&pf
->pdev
->dev
,
5030 "DCBX offload is not supported or is disabled for this PF.\n");
5032 if (pf
->flags
& I40E_FLAG_MFP_ENABLED
)
5036 /* When status is not DISABLED then DCBX in FW */
5037 pf
->dcbx_cap
= DCB_CAP_DCBX_LLD_MANAGED
|
5038 DCB_CAP_DCBX_VER_IEEE
;
5040 pf
->flags
|= I40E_FLAG_DCB_CAPABLE
;
5041 /* Enable DCB tagging only when more than one TC */
5042 if (i40e_dcb_get_num_tc(&hw
->local_dcbx_config
) > 1)
5043 pf
->flags
|= I40E_FLAG_DCB_ENABLED
;
5044 dev_dbg(&pf
->pdev
->dev
,
5045 "DCBX offload is supported for this PF.\n");
5048 dev_info(&pf
->pdev
->dev
,
5049 "Query for DCB configuration failed, err %s aq_err %s\n",
5050 i40e_stat_str(&pf
->hw
, err
),
5051 i40e_aq_str(&pf
->hw
, pf
->hw
.aq
.asq_last_status
));
5057 #endif /* CONFIG_I40E_DCB */
5058 #define SPEED_SIZE 14
5061 * i40e_print_link_message - print link up or down
5062 * @vsi: the VSI for which link needs a message
5064 void i40e_print_link_message(struct i40e_vsi
*vsi
, bool isup
)
5066 char *speed
= "Unknown";
5067 char *fc
= "Unknown";
5069 if (vsi
->current_isup
== isup
)
5071 vsi
->current_isup
= isup
;
5073 netdev_info(vsi
->netdev
, "NIC Link is Down\n");
5077 /* Warn user if link speed on NPAR enabled partition is not at
5080 if (vsi
->back
->hw
.func_caps
.npar_enable
&&
5081 (vsi
->back
->hw
.phy
.link_info
.link_speed
== I40E_LINK_SPEED_1GB
||
5082 vsi
->back
->hw
.phy
.link_info
.link_speed
== I40E_LINK_SPEED_100MB
))
5083 netdev_warn(vsi
->netdev
,
5084 "The partition detected link speed that is less than 10Gbps\n");
5086 switch (vsi
->back
->hw
.phy
.link_info
.link_speed
) {
5087 case I40E_LINK_SPEED_40GB
:
5090 case I40E_LINK_SPEED_20GB
:
5093 case I40E_LINK_SPEED_10GB
:
5096 case I40E_LINK_SPEED_1GB
:
5099 case I40E_LINK_SPEED_100MB
:
5106 switch (vsi
->back
->hw
.fc
.current_mode
) {
5110 case I40E_FC_TX_PAUSE
:
5113 case I40E_FC_RX_PAUSE
:
5121 netdev_info(vsi
->netdev
, "NIC Link is Up %sbps Full Duplex, Flow Control: %s\n",
5126 * i40e_up_complete - Finish the last steps of bringing up a connection
5127 * @vsi: the VSI being configured
5129 static int i40e_up_complete(struct i40e_vsi
*vsi
)
5131 struct i40e_pf
*pf
= vsi
->back
;
5134 if (pf
->flags
& I40E_FLAG_MSIX_ENABLED
)
5135 i40e_vsi_configure_msix(vsi
);
5137 i40e_configure_msi_and_legacy(vsi
);
5140 err
= i40e_vsi_control_rings(vsi
, true);
5144 clear_bit(__I40E_DOWN
, &vsi
->state
);
5145 i40e_napi_enable_all(vsi
);
5146 i40e_vsi_enable_irq(vsi
);
5148 if ((pf
->hw
.phy
.link_info
.link_info
& I40E_AQ_LINK_UP
) &&
5150 i40e_print_link_message(vsi
, true);
5151 netif_tx_start_all_queues(vsi
->netdev
);
5152 netif_carrier_on(vsi
->netdev
);
5153 } else if (vsi
->netdev
) {
5154 i40e_print_link_message(vsi
, false);
5155 /* need to check for qualified module here*/
5156 if ((pf
->hw
.phy
.link_info
.link_info
&
5157 I40E_AQ_MEDIA_AVAILABLE
) &&
5158 (!(pf
->hw
.phy
.link_info
.an_info
&
5159 I40E_AQ_QUALIFIED_MODULE
)))
5160 netdev_err(vsi
->netdev
,
5161 "the driver failed to link because an unqualified module was detected.");
5164 /* replay FDIR SB filters */
5165 if (vsi
->type
== I40E_VSI_FDIR
) {
5166 /* reset fd counters */
5167 pf
->fd_add_err
= pf
->fd_atr_cnt
= 0;
5168 if (pf
->fd_tcp_rule
> 0) {
5169 pf
->flags
&= ~I40E_FLAG_FD_ATR_ENABLED
;
5170 if (I40E_DEBUG_FD
& pf
->hw
.debug_mask
)
5171 dev_info(&pf
->pdev
->dev
, "Forcing ATR off, sideband rules for TCP/IPv4 exist\n");
5172 pf
->fd_tcp_rule
= 0;
5174 i40e_fdir_filter_restore(vsi
);
5176 i40e_service_event_schedule(pf
);
5182 * i40e_vsi_reinit_locked - Reset the VSI
5183 * @vsi: the VSI being configured
5185 * Rebuild the ring structs after some configuration
5186 * has changed, e.g. MTU size.
5188 static void i40e_vsi_reinit_locked(struct i40e_vsi
*vsi
)
5190 struct i40e_pf
*pf
= vsi
->back
;
5192 WARN_ON(in_interrupt());
5193 while (test_and_set_bit(__I40E_CONFIG_BUSY
, &pf
->state
))
5194 usleep_range(1000, 2000);
5197 /* Give a VF some time to respond to the reset. The
5198 * two second wait is based upon the watchdog cycle in
5201 if (vsi
->type
== I40E_VSI_SRIOV
)
5204 clear_bit(__I40E_CONFIG_BUSY
, &pf
->state
);
5208 * i40e_up - Bring the connection back up after being down
5209 * @vsi: the VSI being configured
5211 int i40e_up(struct i40e_vsi
*vsi
)
5215 err
= i40e_vsi_configure(vsi
);
5217 err
= i40e_up_complete(vsi
);
5223 * i40e_down - Shutdown the connection processing
5224 * @vsi: the VSI being stopped
5226 void i40e_down(struct i40e_vsi
*vsi
)
5230 /* It is assumed that the caller of this function
5231 * sets the vsi->state __I40E_DOWN bit.
5234 netif_carrier_off(vsi
->netdev
);
5235 netif_tx_disable(vsi
->netdev
);
5237 i40e_vsi_disable_irq(vsi
);
5238 i40e_vsi_control_rings(vsi
, false);
5239 i40e_napi_disable_all(vsi
);
5241 for (i
= 0; i
< vsi
->num_queue_pairs
; i
++) {
5242 i40e_clean_tx_ring(vsi
->tx_rings
[i
]);
5243 i40e_clean_rx_ring(vsi
->rx_rings
[i
]);
5248 * i40e_setup_tc - configure multiple traffic classes
5249 * @netdev: net device to configure
5250 * @tc: number of traffic classes to enable
5253 int i40e_setup_tc(struct net_device
*netdev
, u8 tc
)
5255 static int i40e_setup_tc(struct net_device
*netdev
, u8 tc
)
5258 struct i40e_netdev_priv
*np
= netdev_priv(netdev
);
5259 struct i40e_vsi
*vsi
= np
->vsi
;
5260 struct i40e_pf
*pf
= vsi
->back
;
5265 /* Check if DCB enabled to continue */
5266 if (!(pf
->flags
& I40E_FLAG_DCB_ENABLED
)) {
5267 netdev_info(netdev
, "DCB is not enabled for adapter\n");
5271 /* Check if MFP enabled */
5272 if (pf
->flags
& I40E_FLAG_MFP_ENABLED
) {
5273 netdev_info(netdev
, "Configuring TC not supported in MFP mode\n");
5277 /* Check whether tc count is within enabled limit */
5278 if (tc
> i40e_pf_get_num_tc(pf
)) {
5279 netdev_info(netdev
, "TC count greater than enabled on link for adapter\n");
5283 /* Generate TC map for number of tc requested */
5284 for (i
= 0; i
< tc
; i
++)
5285 enabled_tc
|= BIT(i
);
5287 /* Requesting same TC configuration as already enabled */
5288 if (enabled_tc
== vsi
->tc_config
.enabled_tc
)
5291 /* Quiesce VSI queues */
5292 i40e_quiesce_vsi(vsi
);
5294 /* Configure VSI for enabled TCs */
5295 ret
= i40e_vsi_config_tc(vsi
, enabled_tc
);
5297 netdev_info(netdev
, "Failed configuring TC for VSI seid=%d\n",
5303 i40e_unquiesce_vsi(vsi
);
5310 * i40e_open - Called when a network interface is made active
5311 * @netdev: network interface device structure
5313 * The open entry point is called when a network interface is made
5314 * active by the system (IFF_UP). At this point all resources needed
5315 * for transmit and receive operations are allocated, the interrupt
5316 * handler is registered with the OS, the netdev watchdog subtask is
5317 * enabled, and the stack is notified that the interface is ready.
5319 * Returns 0 on success, negative value on failure
5321 int i40e_open(struct net_device
*netdev
)
5323 struct i40e_netdev_priv
*np
= netdev_priv(netdev
);
5324 struct i40e_vsi
*vsi
= np
->vsi
;
5325 struct i40e_pf
*pf
= vsi
->back
;
5328 /* disallow open during test or if eeprom is broken */
5329 if (test_bit(__I40E_TESTING
, &pf
->state
) ||
5330 test_bit(__I40E_BAD_EEPROM
, &pf
->state
))
5333 netif_carrier_off(netdev
);
5335 err
= i40e_vsi_open(vsi
);
5339 /* configure global TSO hardware offload settings */
5340 wr32(&pf
->hw
, I40E_GLLAN_TSOMSK_F
, be32_to_cpu(TCP_FLAG_PSH
|
5341 TCP_FLAG_FIN
) >> 16);
5342 wr32(&pf
->hw
, I40E_GLLAN_TSOMSK_M
, be32_to_cpu(TCP_FLAG_PSH
|
5344 TCP_FLAG_CWR
) >> 16);
5345 wr32(&pf
->hw
, I40E_GLLAN_TSOMSK_L
, be32_to_cpu(TCP_FLAG_CWR
) >> 16);
5347 #ifdef CONFIG_I40E_VXLAN
5348 vxlan_get_rx_port(netdev
);
5350 #ifdef CONFIG_I40E_GENEVE
5351 geneve_get_rx_port(netdev
);
5359 * @vsi: the VSI to open
5361 * Finish initialization of the VSI.
5363 * Returns 0 on success, negative value on failure
5365 int i40e_vsi_open(struct i40e_vsi
*vsi
)
5367 struct i40e_pf
*pf
= vsi
->back
;
5368 char int_name
[I40E_INT_NAME_STR_LEN
];
5371 /* allocate descriptors */
5372 err
= i40e_vsi_setup_tx_resources(vsi
);
5375 err
= i40e_vsi_setup_rx_resources(vsi
);
5379 err
= i40e_vsi_configure(vsi
);
5384 snprintf(int_name
, sizeof(int_name
) - 1, "%s-%s",
5385 dev_driver_string(&pf
->pdev
->dev
), vsi
->netdev
->name
);
5386 err
= i40e_vsi_request_irq(vsi
, int_name
);
5390 /* Notify the stack of the actual queue counts. */
5391 err
= netif_set_real_num_tx_queues(vsi
->netdev
,
5392 vsi
->num_queue_pairs
);
5394 goto err_set_queues
;
5396 err
= netif_set_real_num_rx_queues(vsi
->netdev
,
5397 vsi
->num_queue_pairs
);
5399 goto err_set_queues
;
5401 } else if (vsi
->type
== I40E_VSI_FDIR
) {
5402 snprintf(int_name
, sizeof(int_name
) - 1, "%s-%s:fdir",
5403 dev_driver_string(&pf
->pdev
->dev
),
5404 dev_name(&pf
->pdev
->dev
));
5405 err
= i40e_vsi_request_irq(vsi
, int_name
);
5412 err
= i40e_up_complete(vsi
);
5414 goto err_up_complete
;
5421 i40e_vsi_free_irq(vsi
);
5423 i40e_vsi_free_rx_resources(vsi
);
5425 i40e_vsi_free_tx_resources(vsi
);
5426 if (vsi
== pf
->vsi
[pf
->lan_vsi
])
5427 i40e_do_reset(pf
, BIT_ULL(__I40E_PF_RESET_REQUESTED
));
5433 * i40e_fdir_filter_exit - Cleans up the Flow Director accounting
5434 * @pf: Pointer to PF
5436 * This function destroys the hlist where all the Flow Director
5437 * filters were saved.
5439 static void i40e_fdir_filter_exit(struct i40e_pf
*pf
)
5441 struct i40e_fdir_filter
*filter
;
5442 struct hlist_node
*node2
;
5444 hlist_for_each_entry_safe(filter
, node2
,
5445 &pf
->fdir_filter_list
, fdir_node
) {
5446 hlist_del(&filter
->fdir_node
);
5449 pf
->fdir_pf_active_filters
= 0;
5453 * i40e_close - Disables a network interface
5454 * @netdev: network interface device structure
5456 * The close entry point is called when an interface is de-activated
5457 * by the OS. The hardware is still under the driver's control, but
5458 * this netdev interface is disabled.
5460 * Returns 0, this is not allowed to fail
5463 int i40e_close(struct net_device
*netdev
)
5465 static int i40e_close(struct net_device
*netdev
)
5468 struct i40e_netdev_priv
*np
= netdev_priv(netdev
);
5469 struct i40e_vsi
*vsi
= np
->vsi
;
5471 i40e_vsi_close(vsi
);
5477 * i40e_do_reset - Start a PF or Core Reset sequence
5478 * @pf: board private structure
5479 * @reset_flags: which reset is requested
5481 * The essential difference in resets is that the PF Reset
5482 * doesn't clear the packet buffers, doesn't reset the PE
5483 * firmware, and doesn't bother the other PFs on the chip.
5485 void i40e_do_reset(struct i40e_pf
*pf
, u32 reset_flags
)
5489 WARN_ON(in_interrupt());
5491 if (i40e_check_asq_alive(&pf
->hw
))
5492 i40e_vc_notify_reset(pf
);
5494 /* do the biggest reset indicated */
5495 if (reset_flags
& BIT_ULL(__I40E_GLOBAL_RESET_REQUESTED
)) {
5497 /* Request a Global Reset
5499 * This will start the chip's countdown to the actual full
5500 * chip reset event, and a warning interrupt to be sent
5501 * to all PFs, including the requestor. Our handler
5502 * for the warning interrupt will deal with the shutdown
5503 * and recovery of the switch setup.
5505 dev_dbg(&pf
->pdev
->dev
, "GlobalR requested\n");
5506 val
= rd32(&pf
->hw
, I40E_GLGEN_RTRIG
);
5507 val
|= I40E_GLGEN_RTRIG_GLOBR_MASK
;
5508 wr32(&pf
->hw
, I40E_GLGEN_RTRIG
, val
);
5510 } else if (reset_flags
& BIT_ULL(__I40E_CORE_RESET_REQUESTED
)) {
5512 /* Request a Core Reset
5514 * Same as Global Reset, except does *not* include the MAC/PHY
5516 dev_dbg(&pf
->pdev
->dev
, "CoreR requested\n");
5517 val
= rd32(&pf
->hw
, I40E_GLGEN_RTRIG
);
5518 val
|= I40E_GLGEN_RTRIG_CORER_MASK
;
5519 wr32(&pf
->hw
, I40E_GLGEN_RTRIG
, val
);
5520 i40e_flush(&pf
->hw
);
5522 } else if (reset_flags
& BIT_ULL(__I40E_PF_RESET_REQUESTED
)) {
5524 /* Request a PF Reset
5526 * Resets only the PF-specific registers
5528 * This goes directly to the tear-down and rebuild of
5529 * the switch, since we need to do all the recovery as
5530 * for the Core Reset.
5532 dev_dbg(&pf
->pdev
->dev
, "PFR requested\n");
5533 i40e_handle_reset_warning(pf
);
5535 } else if (reset_flags
& BIT_ULL(__I40E_REINIT_REQUESTED
)) {
5538 /* Find the VSI(s) that requested a re-init */
5539 dev_info(&pf
->pdev
->dev
,
5540 "VSI reinit requested\n");
5541 for (v
= 0; v
< pf
->num_alloc_vsi
; v
++) {
5542 struct i40e_vsi
*vsi
= pf
->vsi
[v
];
5545 test_bit(__I40E_REINIT_REQUESTED
, &vsi
->state
)) {
5546 i40e_vsi_reinit_locked(pf
->vsi
[v
]);
5547 clear_bit(__I40E_REINIT_REQUESTED
, &vsi
->state
);
5550 } else if (reset_flags
& BIT_ULL(__I40E_DOWN_REQUESTED
)) {
5553 /* Find the VSI(s) that needs to be brought down */
5554 dev_info(&pf
->pdev
->dev
, "VSI down requested\n");
5555 for (v
= 0; v
< pf
->num_alloc_vsi
; v
++) {
5556 struct i40e_vsi
*vsi
= pf
->vsi
[v
];
5559 test_bit(__I40E_DOWN_REQUESTED
, &vsi
->state
)) {
5560 set_bit(__I40E_DOWN
, &vsi
->state
);
5562 clear_bit(__I40E_DOWN_REQUESTED
, &vsi
->state
);
5566 dev_info(&pf
->pdev
->dev
,
5567 "bad reset request 0x%08x\n", reset_flags
);
5571 #ifdef CONFIG_I40E_DCB
5573 * i40e_dcb_need_reconfig - Check if DCB needs reconfig
5574 * @pf: board private structure
5575 * @old_cfg: current DCB config
5576 * @new_cfg: new DCB config
5578 bool i40e_dcb_need_reconfig(struct i40e_pf
*pf
,
5579 struct i40e_dcbx_config
*old_cfg
,
5580 struct i40e_dcbx_config
*new_cfg
)
5582 bool need_reconfig
= false;
5584 /* Check if ETS configuration has changed */
5585 if (memcmp(&new_cfg
->etscfg
,
5587 sizeof(new_cfg
->etscfg
))) {
5588 /* If Priority Table has changed reconfig is needed */
5589 if (memcmp(&new_cfg
->etscfg
.prioritytable
,
5590 &old_cfg
->etscfg
.prioritytable
,
5591 sizeof(new_cfg
->etscfg
.prioritytable
))) {
5592 need_reconfig
= true;
5593 dev_dbg(&pf
->pdev
->dev
, "ETS UP2TC changed.\n");
5596 if (memcmp(&new_cfg
->etscfg
.tcbwtable
,
5597 &old_cfg
->etscfg
.tcbwtable
,
5598 sizeof(new_cfg
->etscfg
.tcbwtable
)))
5599 dev_dbg(&pf
->pdev
->dev
, "ETS TC BW Table changed.\n");
5601 if (memcmp(&new_cfg
->etscfg
.tsatable
,
5602 &old_cfg
->etscfg
.tsatable
,
5603 sizeof(new_cfg
->etscfg
.tsatable
)))
5604 dev_dbg(&pf
->pdev
->dev
, "ETS TSA Table changed.\n");
5607 /* Check if PFC configuration has changed */
5608 if (memcmp(&new_cfg
->pfc
,
5610 sizeof(new_cfg
->pfc
))) {
5611 need_reconfig
= true;
5612 dev_dbg(&pf
->pdev
->dev
, "PFC config change detected.\n");
5615 /* Check if APP Table has changed */
5616 if (memcmp(&new_cfg
->app
,
5618 sizeof(new_cfg
->app
))) {
5619 need_reconfig
= true;
5620 dev_dbg(&pf
->pdev
->dev
, "APP Table change detected.\n");
5623 dev_dbg(&pf
->pdev
->dev
, "dcb need_reconfig=%d\n", need_reconfig
);
5624 return need_reconfig
;
5628 * i40e_handle_lldp_event - Handle LLDP Change MIB event
5629 * @pf: board private structure
5630 * @e: event info posted on ARQ
5632 static int i40e_handle_lldp_event(struct i40e_pf
*pf
,
5633 struct i40e_arq_event_info
*e
)
5635 struct i40e_aqc_lldp_get_mib
*mib
=
5636 (struct i40e_aqc_lldp_get_mib
*)&e
->desc
.params
.raw
;
5637 struct i40e_hw
*hw
= &pf
->hw
;
5638 struct i40e_dcbx_config tmp_dcbx_cfg
;
5639 bool need_reconfig
= false;
5643 /* Not DCB capable or capability disabled */
5644 if (!(pf
->flags
& I40E_FLAG_DCB_CAPABLE
))
5647 /* Ignore if event is not for Nearest Bridge */
5648 type
= ((mib
->type
>> I40E_AQ_LLDP_BRIDGE_TYPE_SHIFT
)
5649 & I40E_AQ_LLDP_BRIDGE_TYPE_MASK
);
5650 dev_dbg(&pf
->pdev
->dev
, "LLDP event mib bridge type 0x%x\n", type
);
5651 if (type
!= I40E_AQ_LLDP_BRIDGE_TYPE_NEAREST_BRIDGE
)
5654 /* Check MIB Type and return if event for Remote MIB update */
5655 type
= mib
->type
& I40E_AQ_LLDP_MIB_TYPE_MASK
;
5656 dev_dbg(&pf
->pdev
->dev
,
5657 "LLDP event mib type %s\n", type
? "remote" : "local");
5658 if (type
== I40E_AQ_LLDP_MIB_REMOTE
) {
5659 /* Update the remote cached instance and return */
5660 ret
= i40e_aq_get_dcb_config(hw
, I40E_AQ_LLDP_MIB_REMOTE
,
5661 I40E_AQ_LLDP_BRIDGE_TYPE_NEAREST_BRIDGE
,
5662 &hw
->remote_dcbx_config
);
5666 /* Store the old configuration */
5667 tmp_dcbx_cfg
= hw
->local_dcbx_config
;
5669 /* Reset the old DCBx configuration data */
5670 memset(&hw
->local_dcbx_config
, 0, sizeof(hw
->local_dcbx_config
));
5671 /* Get updated DCBX data from firmware */
5672 ret
= i40e_get_dcb_config(&pf
->hw
);
5674 dev_info(&pf
->pdev
->dev
,
5675 "Failed querying DCB configuration data from firmware, err %s aq_err %s\n",
5676 i40e_stat_str(&pf
->hw
, ret
),
5677 i40e_aq_str(&pf
->hw
, pf
->hw
.aq
.asq_last_status
));
5681 /* No change detected in DCBX configs */
5682 if (!memcmp(&tmp_dcbx_cfg
, &hw
->local_dcbx_config
,
5683 sizeof(tmp_dcbx_cfg
))) {
5684 dev_dbg(&pf
->pdev
->dev
, "No change detected in DCBX configuration.\n");
5688 need_reconfig
= i40e_dcb_need_reconfig(pf
, &tmp_dcbx_cfg
,
5689 &hw
->local_dcbx_config
);
5691 i40e_dcbnl_flush_apps(pf
, &tmp_dcbx_cfg
, &hw
->local_dcbx_config
);
5696 /* Enable DCB tagging only when more than one TC */
5697 if (i40e_dcb_get_num_tc(&hw
->local_dcbx_config
) > 1)
5698 pf
->flags
|= I40E_FLAG_DCB_ENABLED
;
5700 pf
->flags
&= ~I40E_FLAG_DCB_ENABLED
;
5702 set_bit(__I40E_PORT_TX_SUSPENDED
, &pf
->state
);
5703 /* Reconfiguration needed quiesce all VSIs */
5704 i40e_pf_quiesce_all_vsi(pf
);
5706 /* Changes in configuration update VEB/VSI */
5707 i40e_dcb_reconfigure(pf
);
5709 ret
= i40e_resume_port_tx(pf
);
5711 clear_bit(__I40E_PORT_TX_SUSPENDED
, &pf
->state
);
5712 /* In case of error no point in resuming VSIs */
5716 /* Wait for the PF's Tx queues to be disabled */
5717 ret
= i40e_pf_wait_txq_disabled(pf
);
5719 /* Schedule PF reset to recover */
5720 set_bit(__I40E_PF_RESET_REQUESTED
, &pf
->state
);
5721 i40e_service_event_schedule(pf
);
5723 i40e_pf_unquiesce_all_vsi(pf
);
5729 #endif /* CONFIG_I40E_DCB */
5732 * i40e_do_reset_safe - Protected reset path for userland calls.
5733 * @pf: board private structure
5734 * @reset_flags: which reset is requested
5737 void i40e_do_reset_safe(struct i40e_pf
*pf
, u32 reset_flags
)
5740 i40e_do_reset(pf
, reset_flags
);
5745 * i40e_handle_lan_overflow_event - Handler for LAN queue overflow event
5746 * @pf: board private structure
5747 * @e: event info posted on ARQ
5749 * Handler for LAN Queue Overflow Event generated by the firmware for PF
5752 static void i40e_handle_lan_overflow_event(struct i40e_pf
*pf
,
5753 struct i40e_arq_event_info
*e
)
5755 struct i40e_aqc_lan_overflow
*data
=
5756 (struct i40e_aqc_lan_overflow
*)&e
->desc
.params
.raw
;
5757 u32 queue
= le32_to_cpu(data
->prtdcb_rupto
);
5758 u32 qtx_ctl
= le32_to_cpu(data
->otx_ctl
);
5759 struct i40e_hw
*hw
= &pf
->hw
;
5763 dev_dbg(&pf
->pdev
->dev
, "overflow Rx Queue Number = %d QTX_CTL=0x%08x\n",
5766 /* Queue belongs to VF, find the VF and issue VF reset */
5767 if (((qtx_ctl
& I40E_QTX_CTL_PFVF_Q_MASK
)
5768 >> I40E_QTX_CTL_PFVF_Q_SHIFT
) == I40E_QTX_CTL_VF_QUEUE
) {
5769 vf_id
= (u16
)((qtx_ctl
& I40E_QTX_CTL_VFVM_INDX_MASK
)
5770 >> I40E_QTX_CTL_VFVM_INDX_SHIFT
);
5771 vf_id
-= hw
->func_caps
.vf_base_id
;
5772 vf
= &pf
->vf
[vf_id
];
5773 i40e_vc_notify_vf_reset(vf
);
5774 /* Allow VF to process pending reset notification */
5776 i40e_reset_vf(vf
, false);
5781 * i40e_service_event_complete - Finish up the service event
5782 * @pf: board private structure
5784 static void i40e_service_event_complete(struct i40e_pf
*pf
)
5786 WARN_ON(!test_bit(__I40E_SERVICE_SCHED
, &pf
->state
));
5788 /* flush memory to make sure state is correct before next watchog */
5789 smp_mb__before_atomic();
5790 clear_bit(__I40E_SERVICE_SCHED
, &pf
->state
);
5794 * i40e_get_cur_guaranteed_fd_count - Get the consumed guaranteed FD filters
5795 * @pf: board private structure
5797 u32
i40e_get_cur_guaranteed_fd_count(struct i40e_pf
*pf
)
5801 val
= rd32(&pf
->hw
, I40E_PFQF_FDSTAT
);
5802 fcnt_prog
= (val
& I40E_PFQF_FDSTAT_GUARANT_CNT_MASK
);
5807 * i40e_get_current_fd_count - Get total FD filters programmed for this PF
5808 * @pf: board private structure
5810 u32
i40e_get_current_fd_count(struct i40e_pf
*pf
)
5814 val
= rd32(&pf
->hw
, I40E_PFQF_FDSTAT
);
5815 fcnt_prog
= (val
& I40E_PFQF_FDSTAT_GUARANT_CNT_MASK
) +
5816 ((val
& I40E_PFQF_FDSTAT_BEST_CNT_MASK
) >>
5817 I40E_PFQF_FDSTAT_BEST_CNT_SHIFT
);
5822 * i40e_get_global_fd_count - Get total FD filters programmed on device
5823 * @pf: board private structure
5825 u32
i40e_get_global_fd_count(struct i40e_pf
*pf
)
5829 val
= rd32(&pf
->hw
, I40E_GLQF_FDCNT_0
);
5830 fcnt_prog
= (val
& I40E_GLQF_FDCNT_0_GUARANT_CNT_MASK
) +
5831 ((val
& I40E_GLQF_FDCNT_0_BESTCNT_MASK
) >>
5832 I40E_GLQF_FDCNT_0_BESTCNT_SHIFT
);
5837 * i40e_fdir_check_and_reenable - Function to reenabe FD ATR or SB if disabled
5838 * @pf: board private structure
5840 void i40e_fdir_check_and_reenable(struct i40e_pf
*pf
)
5842 struct i40e_fdir_filter
*filter
;
5843 u32 fcnt_prog
, fcnt_avail
;
5844 struct hlist_node
*node
;
5846 if (test_bit(__I40E_FD_FLUSH_REQUESTED
, &pf
->state
))
5849 /* Check if, FD SB or ATR was auto disabled and if there is enough room
5852 fcnt_prog
= i40e_get_global_fd_count(pf
);
5853 fcnt_avail
= pf
->fdir_pf_filter_count
;
5854 if ((fcnt_prog
< (fcnt_avail
- I40E_FDIR_BUFFER_HEAD_ROOM
)) ||
5855 (pf
->fd_add_err
== 0) ||
5856 (i40e_get_current_atr_cnt(pf
) < pf
->fd_atr_cnt
)) {
5857 if ((pf
->flags
& I40E_FLAG_FD_SB_ENABLED
) &&
5858 (pf
->auto_disable_flags
& I40E_FLAG_FD_SB_ENABLED
)) {
5859 pf
->auto_disable_flags
&= ~I40E_FLAG_FD_SB_ENABLED
;
5860 if (I40E_DEBUG_FD
& pf
->hw
.debug_mask
)
5861 dev_info(&pf
->pdev
->dev
, "FD Sideband/ntuple is being enabled since we have space in the table now\n");
5864 /* Wait for some more space to be available to turn on ATR */
5865 if (fcnt_prog
< (fcnt_avail
- I40E_FDIR_BUFFER_HEAD_ROOM
* 2)) {
5866 if ((pf
->flags
& I40E_FLAG_FD_ATR_ENABLED
) &&
5867 (pf
->auto_disable_flags
& I40E_FLAG_FD_ATR_ENABLED
)) {
5868 pf
->auto_disable_flags
&= ~I40E_FLAG_FD_ATR_ENABLED
;
5869 if (I40E_DEBUG_FD
& pf
->hw
.debug_mask
)
5870 dev_info(&pf
->pdev
->dev
, "ATR is being enabled since we have space in the table now\n");
5874 /* if hw had a problem adding a filter, delete it */
5875 if (pf
->fd_inv
> 0) {
5876 hlist_for_each_entry_safe(filter
, node
,
5877 &pf
->fdir_filter_list
, fdir_node
) {
5878 if (filter
->fd_id
== pf
->fd_inv
) {
5879 hlist_del(&filter
->fdir_node
);
5881 pf
->fdir_pf_active_filters
--;
5887 #define I40E_MIN_FD_FLUSH_INTERVAL 10
5888 #define I40E_MIN_FD_FLUSH_SB_ATR_UNSTABLE 30
5890 * i40e_fdir_flush_and_replay - Function to flush all FD filters and replay SB
5891 * @pf: board private structure
5893 static void i40e_fdir_flush_and_replay(struct i40e_pf
*pf
)
5895 unsigned long min_flush_time
;
5896 int flush_wait_retry
= 50;
5897 bool disable_atr
= false;
5901 if (!(pf
->flags
& (I40E_FLAG_FD_SB_ENABLED
| I40E_FLAG_FD_ATR_ENABLED
)))
5904 if (!time_after(jiffies
, pf
->fd_flush_timestamp
+
5905 (I40E_MIN_FD_FLUSH_INTERVAL
* HZ
)))
5908 /* If the flush is happening too quick and we have mostly SB rules we
5909 * should not re-enable ATR for some time.
5911 min_flush_time
= pf
->fd_flush_timestamp
+
5912 (I40E_MIN_FD_FLUSH_SB_ATR_UNSTABLE
* HZ
);
5913 fd_room
= pf
->fdir_pf_filter_count
- pf
->fdir_pf_active_filters
;
5915 if (!(time_after(jiffies
, min_flush_time
)) &&
5916 (fd_room
< I40E_FDIR_BUFFER_HEAD_ROOM_FOR_ATR
)) {
5917 if (I40E_DEBUG_FD
& pf
->hw
.debug_mask
)
5918 dev_info(&pf
->pdev
->dev
, "ATR disabled, not enough FD filter space.\n");
5922 pf
->fd_flush_timestamp
= jiffies
;
5923 pf
->flags
&= ~I40E_FLAG_FD_ATR_ENABLED
;
5924 /* flush all filters */
5925 wr32(&pf
->hw
, I40E_PFQF_CTL_1
,
5926 I40E_PFQF_CTL_1_CLEARFDTABLE_MASK
);
5927 i40e_flush(&pf
->hw
);
5931 /* Check FD flush status every 5-6msec */
5932 usleep_range(5000, 6000);
5933 reg
= rd32(&pf
->hw
, I40E_PFQF_CTL_1
);
5934 if (!(reg
& I40E_PFQF_CTL_1_CLEARFDTABLE_MASK
))
5936 } while (flush_wait_retry
--);
5937 if (reg
& I40E_PFQF_CTL_1_CLEARFDTABLE_MASK
) {
5938 dev_warn(&pf
->pdev
->dev
, "FD table did not flush, needs more time\n");
5940 /* replay sideband filters */
5941 i40e_fdir_filter_restore(pf
->vsi
[pf
->lan_vsi
]);
5943 pf
->flags
|= I40E_FLAG_FD_ATR_ENABLED
;
5944 clear_bit(__I40E_FD_FLUSH_REQUESTED
, &pf
->state
);
5945 if (I40E_DEBUG_FD
& pf
->hw
.debug_mask
)
5946 dev_info(&pf
->pdev
->dev
, "FD Filter table flushed and FD-SB replayed.\n");
5952 * i40e_get_current_atr_count - Get the count of total FD ATR filters programmed
5953 * @pf: board private structure
5955 u32
i40e_get_current_atr_cnt(struct i40e_pf
*pf
)
5957 return i40e_get_current_fd_count(pf
) - pf
->fdir_pf_active_filters
;
5960 /* We can see up to 256 filter programming desc in transit if the filters are
5961 * being applied really fast; before we see the first
5962 * filter miss error on Rx queue 0. Accumulating enough error messages before
5963 * reacting will make sure we don't cause flush too often.
5965 #define I40E_MAX_FD_PROGRAM_ERROR 256
5968 * i40e_fdir_reinit_subtask - Worker thread to reinit FDIR filter table
5969 * @pf: board private structure
5971 static void i40e_fdir_reinit_subtask(struct i40e_pf
*pf
)
5974 /* if interface is down do nothing */
5975 if (test_bit(__I40E_DOWN
, &pf
->state
))
5978 if (!(pf
->flags
& (I40E_FLAG_FD_SB_ENABLED
| I40E_FLAG_FD_ATR_ENABLED
)))
5981 if (test_bit(__I40E_FD_FLUSH_REQUESTED
, &pf
->state
))
5982 i40e_fdir_flush_and_replay(pf
);
5984 i40e_fdir_check_and_reenable(pf
);
5989 * i40e_vsi_link_event - notify VSI of a link event
5990 * @vsi: vsi to be notified
5991 * @link_up: link up or down
5993 static void i40e_vsi_link_event(struct i40e_vsi
*vsi
, bool link_up
)
5995 if (!vsi
|| test_bit(__I40E_DOWN
, &vsi
->state
))
5998 switch (vsi
->type
) {
6003 if (!vsi
->netdev
|| !vsi
->netdev_registered
)
6007 netif_carrier_on(vsi
->netdev
);
6008 netif_tx_wake_all_queues(vsi
->netdev
);
6010 netif_carrier_off(vsi
->netdev
);
6011 netif_tx_stop_all_queues(vsi
->netdev
);
6015 case I40E_VSI_SRIOV
:
6016 case I40E_VSI_VMDQ2
:
6018 case I40E_VSI_MIRROR
:
6020 /* there is no notification for other VSIs */
6026 * i40e_veb_link_event - notify elements on the veb of a link event
6027 * @veb: veb to be notified
6028 * @link_up: link up or down
6030 static void i40e_veb_link_event(struct i40e_veb
*veb
, bool link_up
)
6035 if (!veb
|| !veb
->pf
)
6039 /* depth first... */
6040 for (i
= 0; i
< I40E_MAX_VEB
; i
++)
6041 if (pf
->veb
[i
] && (pf
->veb
[i
]->uplink_seid
== veb
->seid
))
6042 i40e_veb_link_event(pf
->veb
[i
], link_up
);
6044 /* ... now the local VSIs */
6045 for (i
= 0; i
< pf
->num_alloc_vsi
; i
++)
6046 if (pf
->vsi
[i
] && (pf
->vsi
[i
]->uplink_seid
== veb
->seid
))
6047 i40e_vsi_link_event(pf
->vsi
[i
], link_up
);
6051 * i40e_link_event - Update netif_carrier status
6052 * @pf: board private structure
6054 static void i40e_link_event(struct i40e_pf
*pf
)
6056 struct i40e_vsi
*vsi
= pf
->vsi
[pf
->lan_vsi
];
6057 u8 new_link_speed
, old_link_speed
;
6059 bool new_link
, old_link
;
6061 /* save off old link status information */
6062 pf
->hw
.phy
.link_info_old
= pf
->hw
.phy
.link_info
;
6064 /* set this to force the get_link_status call to refresh state */
6065 pf
->hw
.phy
.get_link_info
= true;
6067 old_link
= (pf
->hw
.phy
.link_info_old
.link_info
& I40E_AQ_LINK_UP
);
6069 status
= i40e_get_link_status(&pf
->hw
, &new_link
);
6071 dev_dbg(&pf
->pdev
->dev
, "couldn't get link state, status: %d\n",
6076 old_link_speed
= pf
->hw
.phy
.link_info_old
.link_speed
;
6077 new_link_speed
= pf
->hw
.phy
.link_info
.link_speed
;
6079 if (new_link
== old_link
&&
6080 new_link_speed
== old_link_speed
&&
6081 (test_bit(__I40E_DOWN
, &vsi
->state
) ||
6082 new_link
== netif_carrier_ok(vsi
->netdev
)))
6085 if (!test_bit(__I40E_DOWN
, &vsi
->state
))
6086 i40e_print_link_message(vsi
, new_link
);
6088 /* Notify the base of the switch tree connected to
6089 * the link. Floating VEBs are not notified.
6091 if (pf
->lan_veb
!= I40E_NO_VEB
&& pf
->veb
[pf
->lan_veb
])
6092 i40e_veb_link_event(pf
->veb
[pf
->lan_veb
], new_link
);
6094 i40e_vsi_link_event(vsi
, new_link
);
6097 i40e_vc_notify_link_state(pf
);
6099 if (pf
->flags
& I40E_FLAG_PTP
)
6100 i40e_ptp_set_increment(pf
);
6104 * i40e_watchdog_subtask - periodic checks not using event driven response
6105 * @pf: board private structure
6107 static void i40e_watchdog_subtask(struct i40e_pf
*pf
)
6111 /* if interface is down do nothing */
6112 if (test_bit(__I40E_DOWN
, &pf
->state
) ||
6113 test_bit(__I40E_CONFIG_BUSY
, &pf
->state
))
6116 /* make sure we don't do these things too often */
6117 if (time_before(jiffies
, (pf
->service_timer_previous
+
6118 pf
->service_timer_period
)))
6120 pf
->service_timer_previous
= jiffies
;
6122 if (pf
->flags
& I40E_FLAG_LINK_POLLING_ENABLED
)
6123 i40e_link_event(pf
);
6125 /* Update the stats for active netdevs so the network stack
6126 * can look at updated numbers whenever it cares to
6128 for (i
= 0; i
< pf
->num_alloc_vsi
; i
++)
6129 if (pf
->vsi
[i
] && pf
->vsi
[i
]->netdev
)
6130 i40e_update_stats(pf
->vsi
[i
]);
6132 if (pf
->flags
& I40E_FLAG_VEB_STATS_ENABLED
) {
6133 /* Update the stats for the active switching components */
6134 for (i
= 0; i
< I40E_MAX_VEB
; i
++)
6136 i40e_update_veb_stats(pf
->veb
[i
]);
6139 i40e_ptp_rx_hang(pf
->vsi
[pf
->lan_vsi
]);
6143 * i40e_reset_subtask - Set up for resetting the device and driver
6144 * @pf: board private structure
6146 static void i40e_reset_subtask(struct i40e_pf
*pf
)
6148 u32 reset_flags
= 0;
6151 if (test_bit(__I40E_REINIT_REQUESTED
, &pf
->state
)) {
6152 reset_flags
|= BIT(__I40E_REINIT_REQUESTED
);
6153 clear_bit(__I40E_REINIT_REQUESTED
, &pf
->state
);
6155 if (test_bit(__I40E_PF_RESET_REQUESTED
, &pf
->state
)) {
6156 reset_flags
|= BIT(__I40E_PF_RESET_REQUESTED
);
6157 clear_bit(__I40E_PF_RESET_REQUESTED
, &pf
->state
);
6159 if (test_bit(__I40E_CORE_RESET_REQUESTED
, &pf
->state
)) {
6160 reset_flags
|= BIT(__I40E_CORE_RESET_REQUESTED
);
6161 clear_bit(__I40E_CORE_RESET_REQUESTED
, &pf
->state
);
6163 if (test_bit(__I40E_GLOBAL_RESET_REQUESTED
, &pf
->state
)) {
6164 reset_flags
|= BIT(__I40E_GLOBAL_RESET_REQUESTED
);
6165 clear_bit(__I40E_GLOBAL_RESET_REQUESTED
, &pf
->state
);
6167 if (test_bit(__I40E_DOWN_REQUESTED
, &pf
->state
)) {
6168 reset_flags
|= BIT(__I40E_DOWN_REQUESTED
);
6169 clear_bit(__I40E_DOWN_REQUESTED
, &pf
->state
);
6172 /* If there's a recovery already waiting, it takes
6173 * precedence before starting a new reset sequence.
6175 if (test_bit(__I40E_RESET_INTR_RECEIVED
, &pf
->state
)) {
6176 i40e_handle_reset_warning(pf
);
6180 /* If we're already down or resetting, just bail */
6182 !test_bit(__I40E_DOWN
, &pf
->state
) &&
6183 !test_bit(__I40E_CONFIG_BUSY
, &pf
->state
))
6184 i40e_do_reset(pf
, reset_flags
);
6191 * i40e_handle_link_event - Handle link event
6192 * @pf: board private structure
6193 * @e: event info posted on ARQ
6195 static void i40e_handle_link_event(struct i40e_pf
*pf
,
6196 struct i40e_arq_event_info
*e
)
6198 struct i40e_aqc_get_link_status
*status
=
6199 (struct i40e_aqc_get_link_status
*)&e
->desc
.params
.raw
;
6201 /* Do a new status request to re-enable LSE reporting
6202 * and load new status information into the hw struct
6203 * This completely ignores any state information
6204 * in the ARQ event info, instead choosing to always
6205 * issue the AQ update link status command.
6207 i40e_link_event(pf
);
6209 /* check for unqualified module, if link is down */
6210 if ((status
->link_info
& I40E_AQ_MEDIA_AVAILABLE
) &&
6211 (!(status
->an_info
& I40E_AQ_QUALIFIED_MODULE
)) &&
6212 (!(status
->link_info
& I40E_AQ_LINK_UP
)))
6213 dev_err(&pf
->pdev
->dev
,
6214 "The driver failed to link because an unqualified module was detected.\n");
6218 * i40e_clean_adminq_subtask - Clean the AdminQ rings
6219 * @pf: board private structure
6221 static void i40e_clean_adminq_subtask(struct i40e_pf
*pf
)
6223 struct i40e_arq_event_info event
;
6224 struct i40e_hw
*hw
= &pf
->hw
;
6231 /* Do not run clean AQ when PF reset fails */
6232 if (test_bit(__I40E_RESET_FAILED
, &pf
->state
))
6235 /* check for error indications */
6236 val
= rd32(&pf
->hw
, pf
->hw
.aq
.arq
.len
);
6238 if (val
& I40E_PF_ARQLEN_ARQVFE_MASK
) {
6239 if (hw
->debug_mask
& I40E_DEBUG_AQ
)
6240 dev_info(&pf
->pdev
->dev
, "ARQ VF Error detected\n");
6241 val
&= ~I40E_PF_ARQLEN_ARQVFE_MASK
;
6243 if (val
& I40E_PF_ARQLEN_ARQOVFL_MASK
) {
6244 if (hw
->debug_mask
& I40E_DEBUG_AQ
)
6245 dev_info(&pf
->pdev
->dev
, "ARQ Overflow Error detected\n");
6246 val
&= ~I40E_PF_ARQLEN_ARQOVFL_MASK
;
6248 if (val
& I40E_PF_ARQLEN_ARQCRIT_MASK
) {
6249 if (hw
->debug_mask
& I40E_DEBUG_AQ
)
6250 dev_info(&pf
->pdev
->dev
, "ARQ Critical Error detected\n");
6251 val
&= ~I40E_PF_ARQLEN_ARQCRIT_MASK
;
6254 wr32(&pf
->hw
, pf
->hw
.aq
.arq
.len
, val
);
6256 val
= rd32(&pf
->hw
, pf
->hw
.aq
.asq
.len
);
6258 if (val
& I40E_PF_ATQLEN_ATQVFE_MASK
) {
6259 if (pf
->hw
.debug_mask
& I40E_DEBUG_AQ
)
6260 dev_info(&pf
->pdev
->dev
, "ASQ VF Error detected\n");
6261 val
&= ~I40E_PF_ATQLEN_ATQVFE_MASK
;
6263 if (val
& I40E_PF_ATQLEN_ATQOVFL_MASK
) {
6264 if (pf
->hw
.debug_mask
& I40E_DEBUG_AQ
)
6265 dev_info(&pf
->pdev
->dev
, "ASQ Overflow Error detected\n");
6266 val
&= ~I40E_PF_ATQLEN_ATQOVFL_MASK
;
6268 if (val
& I40E_PF_ATQLEN_ATQCRIT_MASK
) {
6269 if (pf
->hw
.debug_mask
& I40E_DEBUG_AQ
)
6270 dev_info(&pf
->pdev
->dev
, "ASQ Critical Error detected\n");
6271 val
&= ~I40E_PF_ATQLEN_ATQCRIT_MASK
;
6274 wr32(&pf
->hw
, pf
->hw
.aq
.asq
.len
, val
);
6276 event
.buf_len
= I40E_MAX_AQ_BUF_SIZE
;
6277 event
.msg_buf
= kzalloc(event
.buf_len
, GFP_KERNEL
);
6282 ret
= i40e_clean_arq_element(hw
, &event
, &pending
);
6283 if (ret
== I40E_ERR_ADMIN_QUEUE_NO_WORK
)
6286 dev_info(&pf
->pdev
->dev
, "ARQ event error %d\n", ret
);
6290 opcode
= le16_to_cpu(event
.desc
.opcode
);
6293 case i40e_aqc_opc_get_link_status
:
6294 i40e_handle_link_event(pf
, &event
);
6296 case i40e_aqc_opc_send_msg_to_pf
:
6297 ret
= i40e_vc_process_vf_msg(pf
,
6298 le16_to_cpu(event
.desc
.retval
),
6299 le32_to_cpu(event
.desc
.cookie_high
),
6300 le32_to_cpu(event
.desc
.cookie_low
),
6304 case i40e_aqc_opc_lldp_update_mib
:
6305 dev_dbg(&pf
->pdev
->dev
, "ARQ: Update LLDP MIB event received\n");
6306 #ifdef CONFIG_I40E_DCB
6308 ret
= i40e_handle_lldp_event(pf
, &event
);
6310 #endif /* CONFIG_I40E_DCB */
6312 case i40e_aqc_opc_event_lan_overflow
:
6313 dev_dbg(&pf
->pdev
->dev
, "ARQ LAN queue overflow event received\n");
6314 i40e_handle_lan_overflow_event(pf
, &event
);
6316 case i40e_aqc_opc_send_msg_to_peer
:
6317 dev_info(&pf
->pdev
->dev
, "ARQ: Msg from other pf\n");
6319 case i40e_aqc_opc_nvm_erase
:
6320 case i40e_aqc_opc_nvm_update
:
6321 case i40e_aqc_opc_oem_post_update
:
6322 i40e_debug(&pf
->hw
, I40E_DEBUG_NVM
, "ARQ NVM operation completed\n");
6325 dev_info(&pf
->pdev
->dev
,
6326 "ARQ Error: Unknown event 0x%04x received\n",
6330 } while (pending
&& (i
++ < pf
->adminq_work_limit
));
6332 clear_bit(__I40E_ADMINQ_EVENT_PENDING
, &pf
->state
);
6333 /* re-enable Admin queue interrupt cause */
6334 val
= rd32(hw
, I40E_PFINT_ICR0_ENA
);
6335 val
|= I40E_PFINT_ICR0_ENA_ADMINQ_MASK
;
6336 wr32(hw
, I40E_PFINT_ICR0_ENA
, val
);
6339 kfree(event
.msg_buf
);
6343 * i40e_verify_eeprom - make sure eeprom is good to use
6344 * @pf: board private structure
6346 static void i40e_verify_eeprom(struct i40e_pf
*pf
)
6350 err
= i40e_diag_eeprom_test(&pf
->hw
);
6352 /* retry in case of garbage read */
6353 err
= i40e_diag_eeprom_test(&pf
->hw
);
6355 dev_info(&pf
->pdev
->dev
, "eeprom check failed (%d), Tx/Rx traffic disabled\n",
6357 set_bit(__I40E_BAD_EEPROM
, &pf
->state
);
6361 if (!err
&& test_bit(__I40E_BAD_EEPROM
, &pf
->state
)) {
6362 dev_info(&pf
->pdev
->dev
, "eeprom check passed, Tx/Rx traffic enabled\n");
6363 clear_bit(__I40E_BAD_EEPROM
, &pf
->state
);
6368 * i40e_enable_pf_switch_lb
6369 * @pf: pointer to the PF structure
6371 * enable switch loop back or die - no point in a return value
6373 static void i40e_enable_pf_switch_lb(struct i40e_pf
*pf
)
6375 struct i40e_vsi
*vsi
= pf
->vsi
[pf
->lan_vsi
];
6376 struct i40e_vsi_context ctxt
;
6379 ctxt
.seid
= pf
->main_vsi_seid
;
6380 ctxt
.pf_num
= pf
->hw
.pf_id
;
6382 ret
= i40e_aq_get_vsi_params(&pf
->hw
, &ctxt
, NULL
);
6384 dev_info(&pf
->pdev
->dev
,
6385 "couldn't get PF vsi config, err %s aq_err %s\n",
6386 i40e_stat_str(&pf
->hw
, ret
),
6387 i40e_aq_str(&pf
->hw
, pf
->hw
.aq
.asq_last_status
));
6390 ctxt
.flags
= I40E_AQ_VSI_TYPE_PF
;
6391 ctxt
.info
.valid_sections
= cpu_to_le16(I40E_AQ_VSI_PROP_SWITCH_VALID
);
6392 ctxt
.info
.switch_id
|= cpu_to_le16(I40E_AQ_VSI_SW_ID_FLAG_ALLOW_LB
);
6394 ret
= i40e_aq_update_vsi_params(&vsi
->back
->hw
, &ctxt
, NULL
);
6396 dev_info(&pf
->pdev
->dev
,
6397 "update vsi switch failed, err %s aq_err %s\n",
6398 i40e_stat_str(&pf
->hw
, ret
),
6399 i40e_aq_str(&pf
->hw
, pf
->hw
.aq
.asq_last_status
));
6404 * i40e_disable_pf_switch_lb
6405 * @pf: pointer to the PF structure
6407 * disable switch loop back or die - no point in a return value
6409 static void i40e_disable_pf_switch_lb(struct i40e_pf
*pf
)
6411 struct i40e_vsi
*vsi
= pf
->vsi
[pf
->lan_vsi
];
6412 struct i40e_vsi_context ctxt
;
6415 ctxt
.seid
= pf
->main_vsi_seid
;
6416 ctxt
.pf_num
= pf
->hw
.pf_id
;
6418 ret
= i40e_aq_get_vsi_params(&pf
->hw
, &ctxt
, NULL
);
6420 dev_info(&pf
->pdev
->dev
,
6421 "couldn't get PF vsi config, err %s aq_err %s\n",
6422 i40e_stat_str(&pf
->hw
, ret
),
6423 i40e_aq_str(&pf
->hw
, pf
->hw
.aq
.asq_last_status
));
6426 ctxt
.flags
= I40E_AQ_VSI_TYPE_PF
;
6427 ctxt
.info
.valid_sections
= cpu_to_le16(I40E_AQ_VSI_PROP_SWITCH_VALID
);
6428 ctxt
.info
.switch_id
&= ~cpu_to_le16(I40E_AQ_VSI_SW_ID_FLAG_ALLOW_LB
);
6430 ret
= i40e_aq_update_vsi_params(&vsi
->back
->hw
, &ctxt
, NULL
);
6432 dev_info(&pf
->pdev
->dev
,
6433 "update vsi switch failed, err %s aq_err %s\n",
6434 i40e_stat_str(&pf
->hw
, ret
),
6435 i40e_aq_str(&pf
->hw
, pf
->hw
.aq
.asq_last_status
));
6440 * i40e_config_bridge_mode - Configure the HW bridge mode
6441 * @veb: pointer to the bridge instance
6443 * Configure the loop back mode for the LAN VSI that is downlink to the
6444 * specified HW bridge instance. It is expected this function is called
6445 * when a new HW bridge is instantiated.
6447 static void i40e_config_bridge_mode(struct i40e_veb
*veb
)
6449 struct i40e_pf
*pf
= veb
->pf
;
6451 if (pf
->hw
.debug_mask
& I40E_DEBUG_LAN
)
6452 dev_info(&pf
->pdev
->dev
, "enabling bridge mode: %s\n",
6453 veb
->bridge_mode
== BRIDGE_MODE_VEPA
? "VEPA" : "VEB");
6454 if (veb
->bridge_mode
& BRIDGE_MODE_VEPA
)
6455 i40e_disable_pf_switch_lb(pf
);
6457 i40e_enable_pf_switch_lb(pf
);
6461 * i40e_reconstitute_veb - rebuild the VEB and anything connected to it
6462 * @veb: pointer to the VEB instance
6464 * This is a recursive function that first builds the attached VSIs then
6465 * recurses in to build the next layer of VEB. We track the connections
6466 * through our own index numbers because the seid's from the HW could
6467 * change across the reset.
6469 static int i40e_reconstitute_veb(struct i40e_veb
*veb
)
6471 struct i40e_vsi
*ctl_vsi
= NULL
;
6472 struct i40e_pf
*pf
= veb
->pf
;
6476 /* build VSI that owns this VEB, temporarily attached to base VEB */
6477 for (v
= 0; v
< pf
->num_alloc_vsi
&& !ctl_vsi
; v
++) {
6479 pf
->vsi
[v
]->veb_idx
== veb
->idx
&&
6480 pf
->vsi
[v
]->flags
& I40E_VSI_FLAG_VEB_OWNER
) {
6481 ctl_vsi
= pf
->vsi
[v
];
6486 dev_info(&pf
->pdev
->dev
,
6487 "missing owner VSI for veb_idx %d\n", veb
->idx
);
6489 goto end_reconstitute
;
6491 if (ctl_vsi
!= pf
->vsi
[pf
->lan_vsi
])
6492 ctl_vsi
->uplink_seid
= pf
->vsi
[pf
->lan_vsi
]->uplink_seid
;
6493 ret
= i40e_add_vsi(ctl_vsi
);
6495 dev_info(&pf
->pdev
->dev
,
6496 "rebuild of veb_idx %d owner VSI failed: %d\n",
6498 goto end_reconstitute
;
6500 i40e_vsi_reset_stats(ctl_vsi
);
6502 /* create the VEB in the switch and move the VSI onto the VEB */
6503 ret
= i40e_add_veb(veb
, ctl_vsi
);
6505 goto end_reconstitute
;
6507 if (pf
->flags
& I40E_FLAG_VEB_MODE_ENABLED
)
6508 veb
->bridge_mode
= BRIDGE_MODE_VEB
;
6510 veb
->bridge_mode
= BRIDGE_MODE_VEPA
;
6511 i40e_config_bridge_mode(veb
);
6513 /* create the remaining VSIs attached to this VEB */
6514 for (v
= 0; v
< pf
->num_alloc_vsi
; v
++) {
6515 if (!pf
->vsi
[v
] || pf
->vsi
[v
] == ctl_vsi
)
6518 if (pf
->vsi
[v
]->veb_idx
== veb
->idx
) {
6519 struct i40e_vsi
*vsi
= pf
->vsi
[v
];
6521 vsi
->uplink_seid
= veb
->seid
;
6522 ret
= i40e_add_vsi(vsi
);
6524 dev_info(&pf
->pdev
->dev
,
6525 "rebuild of vsi_idx %d failed: %d\n",
6527 goto end_reconstitute
;
6529 i40e_vsi_reset_stats(vsi
);
6533 /* create any VEBs attached to this VEB - RECURSION */
6534 for (veb_idx
= 0; veb_idx
< I40E_MAX_VEB
; veb_idx
++) {
6535 if (pf
->veb
[veb_idx
] && pf
->veb
[veb_idx
]->veb_idx
== veb
->idx
) {
6536 pf
->veb
[veb_idx
]->uplink_seid
= veb
->seid
;
6537 ret
= i40e_reconstitute_veb(pf
->veb
[veb_idx
]);
6548 * i40e_get_capabilities - get info about the HW
6549 * @pf: the PF struct
6551 static int i40e_get_capabilities(struct i40e_pf
*pf
)
6553 struct i40e_aqc_list_capabilities_element_resp
*cap_buf
;
6558 buf_len
= 40 * sizeof(struct i40e_aqc_list_capabilities_element_resp
);
6560 cap_buf
= kzalloc(buf_len
, GFP_KERNEL
);
6564 /* this loads the data into the hw struct for us */
6565 err
= i40e_aq_discover_capabilities(&pf
->hw
, cap_buf
, buf_len
,
6567 i40e_aqc_opc_list_func_capabilities
,
6569 /* data loaded, buffer no longer needed */
6572 if (pf
->hw
.aq
.asq_last_status
== I40E_AQ_RC_ENOMEM
) {
6573 /* retry with a larger buffer */
6574 buf_len
= data_size
;
6575 } else if (pf
->hw
.aq
.asq_last_status
!= I40E_AQ_RC_OK
) {
6576 dev_info(&pf
->pdev
->dev
,
6577 "capability discovery failed, err %s aq_err %s\n",
6578 i40e_stat_str(&pf
->hw
, err
),
6579 i40e_aq_str(&pf
->hw
,
6580 pf
->hw
.aq
.asq_last_status
));
6585 if (pf
->hw
.debug_mask
& I40E_DEBUG_USER
)
6586 dev_info(&pf
->pdev
->dev
,
6587 "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",
6588 pf
->hw
.pf_id
, pf
->hw
.func_caps
.num_vfs
,
6589 pf
->hw
.func_caps
.num_msix_vectors
,
6590 pf
->hw
.func_caps
.num_msix_vectors_vf
,
6591 pf
->hw
.func_caps
.fd_filters_guaranteed
,
6592 pf
->hw
.func_caps
.fd_filters_best_effort
,
6593 pf
->hw
.func_caps
.num_tx_qp
,
6594 pf
->hw
.func_caps
.num_vsis
);
6596 #define DEF_NUM_VSI (1 + (pf->hw.func_caps.fcoe ? 1 : 0) \
6597 + pf->hw.func_caps.num_vfs)
6598 if (pf
->hw
.revision_id
== 0 && (DEF_NUM_VSI
> pf
->hw
.func_caps
.num_vsis
)) {
6599 dev_info(&pf
->pdev
->dev
,
6600 "got num_vsis %d, setting num_vsis to %d\n",
6601 pf
->hw
.func_caps
.num_vsis
, DEF_NUM_VSI
);
6602 pf
->hw
.func_caps
.num_vsis
= DEF_NUM_VSI
;
6608 static int i40e_vsi_clear(struct i40e_vsi
*vsi
);
6611 * i40e_fdir_sb_setup - initialize the Flow Director resources for Sideband
6612 * @pf: board private structure
6614 static void i40e_fdir_sb_setup(struct i40e_pf
*pf
)
6616 struct i40e_vsi
*vsi
;
6619 /* quick workaround for an NVM issue that leaves a critical register
6622 if (!rd32(&pf
->hw
, I40E_GLQF_HKEY(0))) {
6623 static const u32 hkey
[] = {
6624 0xe640d33f, 0xcdfe98ab, 0x73fa7161, 0x0d7a7d36,
6625 0xeacb7d61, 0xaa4f05b6, 0x9c5c89ed, 0xfc425ddb,
6626 0xa4654832, 0xfc7461d4, 0x8f827619, 0xf5c63c21,
6629 for (i
= 0; i
<= I40E_GLQF_HKEY_MAX_INDEX
; i
++)
6630 wr32(&pf
->hw
, I40E_GLQF_HKEY(i
), hkey
[i
]);
6633 if (!(pf
->flags
& I40E_FLAG_FD_SB_ENABLED
))
6636 /* find existing VSI and see if it needs configuring */
6638 for (i
= 0; i
< pf
->num_alloc_vsi
; i
++) {
6639 if (pf
->vsi
[i
] && pf
->vsi
[i
]->type
== I40E_VSI_FDIR
) {
6645 /* create a new VSI if none exists */
6647 vsi
= i40e_vsi_setup(pf
, I40E_VSI_FDIR
,
6648 pf
->vsi
[pf
->lan_vsi
]->seid
, 0);
6650 dev_info(&pf
->pdev
->dev
, "Couldn't create FDir VSI\n");
6651 pf
->flags
&= ~I40E_FLAG_FD_SB_ENABLED
;
6656 i40e_vsi_setup_irqhandler(vsi
, i40e_fdir_clean_ring
);
6660 * i40e_fdir_teardown - release the Flow Director resources
6661 * @pf: board private structure
6663 static void i40e_fdir_teardown(struct i40e_pf
*pf
)
6667 i40e_fdir_filter_exit(pf
);
6668 for (i
= 0; i
< pf
->num_alloc_vsi
; i
++) {
6669 if (pf
->vsi
[i
] && pf
->vsi
[i
]->type
== I40E_VSI_FDIR
) {
6670 i40e_vsi_release(pf
->vsi
[i
]);
6677 * i40e_prep_for_reset - prep for the core to reset
6678 * @pf: board private structure
6680 * Close up the VFs and other things in prep for PF Reset.
6682 static void i40e_prep_for_reset(struct i40e_pf
*pf
)
6684 struct i40e_hw
*hw
= &pf
->hw
;
6685 i40e_status ret
= 0;
6688 clear_bit(__I40E_RESET_INTR_RECEIVED
, &pf
->state
);
6689 if (test_and_set_bit(__I40E_RESET_RECOVERY_PENDING
, &pf
->state
))
6692 dev_dbg(&pf
->pdev
->dev
, "Tearing down internal switch for reset\n");
6694 /* quiesce the VSIs and their queues that are not already DOWN */
6695 i40e_pf_quiesce_all_vsi(pf
);
6697 for (v
= 0; v
< pf
->num_alloc_vsi
; v
++) {
6699 pf
->vsi
[v
]->seid
= 0;
6702 i40e_shutdown_adminq(&pf
->hw
);
6704 /* call shutdown HMC */
6705 if (hw
->hmc
.hmc_obj
) {
6706 ret
= i40e_shutdown_lan_hmc(hw
);
6708 dev_warn(&pf
->pdev
->dev
,
6709 "shutdown_lan_hmc failed: %d\n", ret
);
6714 * i40e_send_version - update firmware with driver version
6717 static void i40e_send_version(struct i40e_pf
*pf
)
6719 struct i40e_driver_version dv
;
6721 dv
.major_version
= DRV_VERSION_MAJOR
;
6722 dv
.minor_version
= DRV_VERSION_MINOR
;
6723 dv
.build_version
= DRV_VERSION_BUILD
;
6724 dv
.subbuild_version
= 0;
6725 strlcpy(dv
.driver_string
, DRV_VERSION
, sizeof(dv
.driver_string
));
6726 i40e_aq_send_driver_version(&pf
->hw
, &dv
, NULL
);
6730 * i40e_reset_and_rebuild - reset and rebuild using a saved config
6731 * @pf: board private structure
6732 * @reinit: if the Main VSI needs to re-initialized.
6734 static void i40e_reset_and_rebuild(struct i40e_pf
*pf
, bool reinit
)
6736 struct i40e_hw
*hw
= &pf
->hw
;
6737 u8 set_fc_aq_fail
= 0;
6742 /* Now we wait for GRST to settle out.
6743 * We don't have to delete the VEBs or VSIs from the hw switch
6744 * because the reset will make them disappear.
6746 ret
= i40e_pf_reset(hw
);
6748 dev_info(&pf
->pdev
->dev
, "PF reset failed, %d\n", ret
);
6749 set_bit(__I40E_RESET_FAILED
, &pf
->state
);
6750 goto clear_recovery
;
6754 if (test_bit(__I40E_DOWN
, &pf
->state
))
6755 goto clear_recovery
;
6756 dev_dbg(&pf
->pdev
->dev
, "Rebuilding internal switch\n");
6758 /* rebuild the basics for the AdminQ, HMC, and initial HW switch */
6759 ret
= i40e_init_adminq(&pf
->hw
);
6761 dev_info(&pf
->pdev
->dev
, "Rebuild AdminQ failed, err %s aq_err %s\n",
6762 i40e_stat_str(&pf
->hw
, ret
),
6763 i40e_aq_str(&pf
->hw
, pf
->hw
.aq
.asq_last_status
));
6764 goto clear_recovery
;
6767 /* re-verify the eeprom if we just had an EMP reset */
6768 if (test_and_clear_bit(__I40E_EMP_RESET_INTR_RECEIVED
, &pf
->state
))
6769 i40e_verify_eeprom(pf
);
6771 i40e_clear_pxe_mode(hw
);
6772 ret
= i40e_get_capabilities(pf
);
6774 goto end_core_reset
;
6776 ret
= i40e_init_lan_hmc(hw
, hw
->func_caps
.num_tx_qp
,
6777 hw
->func_caps
.num_rx_qp
,
6778 pf
->fcoe_hmc_cntx_num
, pf
->fcoe_hmc_filt_num
);
6780 dev_info(&pf
->pdev
->dev
, "init_lan_hmc failed: %d\n", ret
);
6781 goto end_core_reset
;
6783 ret
= i40e_configure_lan_hmc(hw
, I40E_HMC_MODEL_DIRECT_ONLY
);
6785 dev_info(&pf
->pdev
->dev
, "configure_lan_hmc failed: %d\n", ret
);
6786 goto end_core_reset
;
6789 #ifdef CONFIG_I40E_DCB
6790 ret
= i40e_init_pf_dcb(pf
);
6792 dev_info(&pf
->pdev
->dev
, "DCB init failed %d, disabled\n", ret
);
6793 pf
->flags
&= ~I40E_FLAG_DCB_CAPABLE
;
6794 /* Continue without DCB enabled */
6796 #endif /* CONFIG_I40E_DCB */
6798 i40e_init_pf_fcoe(pf
);
6801 /* do basic switch setup */
6802 ret
= i40e_setup_pf_switch(pf
, reinit
);
6804 goto end_core_reset
;
6806 /* driver is only interested in link up/down and module qualification
6807 * reports from firmware
6809 ret
= i40e_aq_set_phy_int_mask(&pf
->hw
,
6810 I40E_AQ_EVENT_LINK_UPDOWN
|
6811 I40E_AQ_EVENT_MODULE_QUAL_FAIL
, NULL
);
6813 dev_info(&pf
->pdev
->dev
, "set phy mask fail, err %s aq_err %s\n",
6814 i40e_stat_str(&pf
->hw
, ret
),
6815 i40e_aq_str(&pf
->hw
, pf
->hw
.aq
.asq_last_status
));
6817 /* make sure our flow control settings are restored */
6818 ret
= i40e_set_fc(&pf
->hw
, &set_fc_aq_fail
, true);
6820 dev_dbg(&pf
->pdev
->dev
, "setting flow control: ret = %s last_status = %s\n",
6821 i40e_stat_str(&pf
->hw
, ret
),
6822 i40e_aq_str(&pf
->hw
, pf
->hw
.aq
.asq_last_status
));
6824 /* Rebuild the VSIs and VEBs that existed before reset.
6825 * They are still in our local switch element arrays, so only
6826 * need to rebuild the switch model in the HW.
6828 * If there were VEBs but the reconstitution failed, we'll try
6829 * try to recover minimal use by getting the basic PF VSI working.
6831 if (pf
->vsi
[pf
->lan_vsi
]->uplink_seid
!= pf
->mac_seid
) {
6832 dev_dbg(&pf
->pdev
->dev
, "attempting to rebuild switch\n");
6833 /* find the one VEB connected to the MAC, and find orphans */
6834 for (v
= 0; v
< I40E_MAX_VEB
; v
++) {
6838 if (pf
->veb
[v
]->uplink_seid
== pf
->mac_seid
||
6839 pf
->veb
[v
]->uplink_seid
== 0) {
6840 ret
= i40e_reconstitute_veb(pf
->veb
[v
]);
6845 /* If Main VEB failed, we're in deep doodoo,
6846 * so give up rebuilding the switch and set up
6847 * for minimal rebuild of PF VSI.
6848 * If orphan failed, we'll report the error
6849 * but try to keep going.
6851 if (pf
->veb
[v
]->uplink_seid
== pf
->mac_seid
) {
6852 dev_info(&pf
->pdev
->dev
,
6853 "rebuild of switch failed: %d, will try to set up simple PF connection\n",
6855 pf
->vsi
[pf
->lan_vsi
]->uplink_seid
6858 } else if (pf
->veb
[v
]->uplink_seid
== 0) {
6859 dev_info(&pf
->pdev
->dev
,
6860 "rebuild of orphan VEB failed: %d\n",
6867 if (pf
->vsi
[pf
->lan_vsi
]->uplink_seid
== pf
->mac_seid
) {
6868 dev_dbg(&pf
->pdev
->dev
, "attempting to rebuild PF VSI\n");
6869 /* no VEB, so rebuild only the Main VSI */
6870 ret
= i40e_add_vsi(pf
->vsi
[pf
->lan_vsi
]);
6872 dev_info(&pf
->pdev
->dev
,
6873 "rebuild of Main VSI failed: %d\n", ret
);
6874 goto end_core_reset
;
6878 /* Reconfigure hardware for allowing smaller MSS in the case
6879 * of TSO, so that we avoid the MDD being fired and causing
6880 * a reset in the case of small MSS+TSO.
6882 #define I40E_REG_MSS 0x000E64DC
6883 #define I40E_REG_MSS_MIN_MASK 0x3FF0000
6884 #define I40E_64BYTE_MSS 0x400000
6885 val
= rd32(hw
, I40E_REG_MSS
);
6886 if ((val
& I40E_REG_MSS_MIN_MASK
) > I40E_64BYTE_MSS
) {
6887 val
&= ~I40E_REG_MSS_MIN_MASK
;
6888 val
|= I40E_64BYTE_MSS
;
6889 wr32(hw
, I40E_REG_MSS
, val
);
6892 if (((pf
->hw
.aq
.fw_maj_ver
== 4) && (pf
->hw
.aq
.fw_min_ver
< 33)) ||
6893 (pf
->hw
.aq
.fw_maj_ver
< 4)) {
6895 ret
= i40e_aq_set_link_restart_an(&pf
->hw
, true, NULL
);
6897 dev_info(&pf
->pdev
->dev
, "link restart failed, err %s aq_err %s\n",
6898 i40e_stat_str(&pf
->hw
, ret
),
6899 i40e_aq_str(&pf
->hw
,
6900 pf
->hw
.aq
.asq_last_status
));
6902 /* reinit the misc interrupt */
6903 if (pf
->flags
& I40E_FLAG_MSIX_ENABLED
)
6904 ret
= i40e_setup_misc_vector(pf
);
6906 /* Add a filter to drop all Flow control frames from any VSI from being
6907 * transmitted. By doing so we stop a malicious VF from sending out
6908 * PAUSE or PFC frames and potentially controlling traffic for other
6910 * The FW can still send Flow control frames if enabled.
6912 i40e_add_filter_to_drop_tx_flow_control_frames(&pf
->hw
,
6915 /* restart the VSIs that were rebuilt and running before the reset */
6916 i40e_pf_unquiesce_all_vsi(pf
);
6918 if (pf
->num_alloc_vfs
) {
6919 for (v
= 0; v
< pf
->num_alloc_vfs
; v
++)
6920 i40e_reset_vf(&pf
->vf
[v
], true);
6923 /* tell the firmware that we're starting */
6924 i40e_send_version(pf
);
6927 clear_bit(__I40E_RESET_FAILED
, &pf
->state
);
6929 clear_bit(__I40E_RESET_RECOVERY_PENDING
, &pf
->state
);
6933 * i40e_handle_reset_warning - prep for the PF to reset, reset and rebuild
6934 * @pf: board private structure
6936 * Close up the VFs and other things in prep for a Core Reset,
6937 * then get ready to rebuild the world.
6939 static void i40e_handle_reset_warning(struct i40e_pf
*pf
)
6941 i40e_prep_for_reset(pf
);
6942 i40e_reset_and_rebuild(pf
, false);
6946 * i40e_handle_mdd_event
6947 * @pf: pointer to the PF structure
6949 * Called from the MDD irq handler to identify possibly malicious vfs
6951 static void i40e_handle_mdd_event(struct i40e_pf
*pf
)
6953 struct i40e_hw
*hw
= &pf
->hw
;
6954 bool mdd_detected
= false;
6955 bool pf_mdd_detected
= false;
6960 if (!test_bit(__I40E_MDD_EVENT_PENDING
, &pf
->state
))
6963 /* find what triggered the MDD event */
6964 reg
= rd32(hw
, I40E_GL_MDET_TX
);
6965 if (reg
& I40E_GL_MDET_TX_VALID_MASK
) {
6966 u8 pf_num
= (reg
& I40E_GL_MDET_TX_PF_NUM_MASK
) >>
6967 I40E_GL_MDET_TX_PF_NUM_SHIFT
;
6968 u16 vf_num
= (reg
& I40E_GL_MDET_TX_VF_NUM_MASK
) >>
6969 I40E_GL_MDET_TX_VF_NUM_SHIFT
;
6970 u8 event
= (reg
& I40E_GL_MDET_TX_EVENT_MASK
) >>
6971 I40E_GL_MDET_TX_EVENT_SHIFT
;
6972 u16 queue
= ((reg
& I40E_GL_MDET_TX_QUEUE_MASK
) >>
6973 I40E_GL_MDET_TX_QUEUE_SHIFT
) -
6974 pf
->hw
.func_caps
.base_queue
;
6975 if (netif_msg_tx_err(pf
))
6976 dev_info(&pf
->pdev
->dev
, "Malicious Driver Detection event 0x%02x on TX queue %d PF number 0x%02x VF number 0x%02x\n",
6977 event
, queue
, pf_num
, vf_num
);
6978 wr32(hw
, I40E_GL_MDET_TX
, 0xffffffff);
6979 mdd_detected
= true;
6981 reg
= rd32(hw
, I40E_GL_MDET_RX
);
6982 if (reg
& I40E_GL_MDET_RX_VALID_MASK
) {
6983 u8 func
= (reg
& I40E_GL_MDET_RX_FUNCTION_MASK
) >>
6984 I40E_GL_MDET_RX_FUNCTION_SHIFT
;
6985 u8 event
= (reg
& I40E_GL_MDET_RX_EVENT_MASK
) >>
6986 I40E_GL_MDET_RX_EVENT_SHIFT
;
6987 u16 queue
= ((reg
& I40E_GL_MDET_RX_QUEUE_MASK
) >>
6988 I40E_GL_MDET_RX_QUEUE_SHIFT
) -
6989 pf
->hw
.func_caps
.base_queue
;
6990 if (netif_msg_rx_err(pf
))
6991 dev_info(&pf
->pdev
->dev
, "Malicious Driver Detection event 0x%02x on RX queue %d of function 0x%02x\n",
6992 event
, queue
, func
);
6993 wr32(hw
, I40E_GL_MDET_RX
, 0xffffffff);
6994 mdd_detected
= true;
6998 reg
= rd32(hw
, I40E_PF_MDET_TX
);
6999 if (reg
& I40E_PF_MDET_TX_VALID_MASK
) {
7000 wr32(hw
, I40E_PF_MDET_TX
, 0xFFFF);
7001 dev_info(&pf
->pdev
->dev
, "TX driver issue detected, PF reset issued\n");
7002 pf_mdd_detected
= true;
7004 reg
= rd32(hw
, I40E_PF_MDET_RX
);
7005 if (reg
& I40E_PF_MDET_RX_VALID_MASK
) {
7006 wr32(hw
, I40E_PF_MDET_RX
, 0xFFFF);
7007 dev_info(&pf
->pdev
->dev
, "RX driver issue detected, PF reset issued\n");
7008 pf_mdd_detected
= true;
7010 /* Queue belongs to the PF, initiate a reset */
7011 if (pf_mdd_detected
) {
7012 set_bit(__I40E_PF_RESET_REQUESTED
, &pf
->state
);
7013 i40e_service_event_schedule(pf
);
7017 /* see if one of the VFs needs its hand slapped */
7018 for (i
= 0; i
< pf
->num_alloc_vfs
&& mdd_detected
; i
++) {
7020 reg
= rd32(hw
, I40E_VP_MDET_TX(i
));
7021 if (reg
& I40E_VP_MDET_TX_VALID_MASK
) {
7022 wr32(hw
, I40E_VP_MDET_TX(i
), 0xFFFF);
7023 vf
->num_mdd_events
++;
7024 dev_info(&pf
->pdev
->dev
, "TX driver issue detected on VF %d\n",
7028 reg
= rd32(hw
, I40E_VP_MDET_RX(i
));
7029 if (reg
& I40E_VP_MDET_RX_VALID_MASK
) {
7030 wr32(hw
, I40E_VP_MDET_RX(i
), 0xFFFF);
7031 vf
->num_mdd_events
++;
7032 dev_info(&pf
->pdev
->dev
, "RX driver issue detected on VF %d\n",
7036 if (vf
->num_mdd_events
> I40E_DEFAULT_NUM_MDD_EVENTS_ALLOWED
) {
7037 dev_info(&pf
->pdev
->dev
,
7038 "Too many MDD events on VF %d, disabled\n", i
);
7039 dev_info(&pf
->pdev
->dev
,
7040 "Use PF Control I/F to re-enable the VF\n");
7041 set_bit(I40E_VF_STAT_DISABLED
, &vf
->vf_states
);
7045 /* re-enable mdd interrupt cause */
7046 clear_bit(__I40E_MDD_EVENT_PENDING
, &pf
->state
);
7047 reg
= rd32(hw
, I40E_PFINT_ICR0_ENA
);
7048 reg
|= I40E_PFINT_ICR0_ENA_MAL_DETECT_MASK
;
7049 wr32(hw
, I40E_PFINT_ICR0_ENA
, reg
);
7054 * i40e_sync_udp_filters_subtask - Sync the VSI filter list with HW
7055 * @pf: board private structure
7057 static void i40e_sync_udp_filters_subtask(struct i40e_pf
*pf
)
7059 #if IS_ENABLED(CONFIG_VXLAN) || IS_ENABLED(CONFIG_GENEVE)
7060 struct i40e_hw
*hw
= &pf
->hw
;
7065 if (!(pf
->flags
& I40E_FLAG_UDP_FILTER_SYNC
))
7068 pf
->flags
&= ~I40E_FLAG_UDP_FILTER_SYNC
;
7070 for (i
= 0; i
< I40E_MAX_PF_UDP_OFFLOAD_PORTS
; i
++) {
7071 if (pf
->pending_udp_bitmap
& BIT_ULL(i
)) {
7072 pf
->pending_udp_bitmap
&= ~BIT_ULL(i
);
7073 port
= pf
->udp_ports
[i
].index
;
7075 ret
= i40e_aq_add_udp_tunnel(hw
, ntohs(port
),
7076 pf
->udp_ports
[i
].type
,
7079 ret
= i40e_aq_del_udp_tunnel(hw
, i
, NULL
);
7082 dev_info(&pf
->pdev
->dev
,
7083 "%s vxlan port %d, index %d failed, err %s aq_err %s\n",
7084 port
? "add" : "delete",
7086 i40e_stat_str(&pf
->hw
, ret
),
7087 i40e_aq_str(&pf
->hw
,
7088 pf
->hw
.aq
.asq_last_status
));
7089 pf
->udp_ports
[i
].index
= 0;
7097 * i40e_service_task - Run the driver's async subtasks
7098 * @work: pointer to work_struct containing our data
7100 static void i40e_service_task(struct work_struct
*work
)
7102 struct i40e_pf
*pf
= container_of(work
,
7105 unsigned long start_time
= jiffies
;
7107 /* don't bother with service tasks if a reset is in progress */
7108 if (test_bit(__I40E_RESET_RECOVERY_PENDING
, &pf
->state
)) {
7109 i40e_service_event_complete(pf
);
7113 i40e_detect_recover_hung(pf
);
7114 i40e_reset_subtask(pf
);
7115 i40e_handle_mdd_event(pf
);
7116 i40e_vc_process_vflr_event(pf
);
7117 i40e_watchdog_subtask(pf
);
7118 i40e_fdir_reinit_subtask(pf
);
7119 i40e_sync_filters_subtask(pf
);
7120 i40e_sync_udp_filters_subtask(pf
);
7121 i40e_clean_adminq_subtask(pf
);
7123 i40e_service_event_complete(pf
);
7125 /* If the tasks have taken longer than one timer cycle or there
7126 * is more work to be done, reschedule the service task now
7127 * rather than wait for the timer to tick again.
7129 if (time_after(jiffies
, (start_time
+ pf
->service_timer_period
)) ||
7130 test_bit(__I40E_ADMINQ_EVENT_PENDING
, &pf
->state
) ||
7131 test_bit(__I40E_MDD_EVENT_PENDING
, &pf
->state
) ||
7132 test_bit(__I40E_VFLR_EVENT_PENDING
, &pf
->state
))
7133 i40e_service_event_schedule(pf
);
7137 * i40e_service_timer - timer callback
7138 * @data: pointer to PF struct
7140 static void i40e_service_timer(unsigned long data
)
7142 struct i40e_pf
*pf
= (struct i40e_pf
*)data
;
7144 mod_timer(&pf
->service_timer
,
7145 round_jiffies(jiffies
+ pf
->service_timer_period
));
7146 i40e_service_event_schedule(pf
);
7150 * i40e_set_num_rings_in_vsi - Determine number of rings in the VSI
7151 * @vsi: the VSI being configured
7153 static int i40e_set_num_rings_in_vsi(struct i40e_vsi
*vsi
)
7155 struct i40e_pf
*pf
= vsi
->back
;
7157 switch (vsi
->type
) {
7159 vsi
->alloc_queue_pairs
= pf
->num_lan_qps
;
7160 vsi
->num_desc
= ALIGN(I40E_DEFAULT_NUM_DESCRIPTORS
,
7161 I40E_REQ_DESCRIPTOR_MULTIPLE
);
7162 if (pf
->flags
& I40E_FLAG_MSIX_ENABLED
)
7163 vsi
->num_q_vectors
= pf
->num_lan_msix
;
7165 vsi
->num_q_vectors
= 1;
7170 vsi
->alloc_queue_pairs
= 1;
7171 vsi
->num_desc
= ALIGN(I40E_FDIR_RING_COUNT
,
7172 I40E_REQ_DESCRIPTOR_MULTIPLE
);
7173 vsi
->num_q_vectors
= 1;
7176 case I40E_VSI_VMDQ2
:
7177 vsi
->alloc_queue_pairs
= pf
->num_vmdq_qps
;
7178 vsi
->num_desc
= ALIGN(I40E_DEFAULT_NUM_DESCRIPTORS
,
7179 I40E_REQ_DESCRIPTOR_MULTIPLE
);
7180 vsi
->num_q_vectors
= pf
->num_vmdq_msix
;
7183 case I40E_VSI_SRIOV
:
7184 vsi
->alloc_queue_pairs
= pf
->num_vf_qps
;
7185 vsi
->num_desc
= ALIGN(I40E_DEFAULT_NUM_DESCRIPTORS
,
7186 I40E_REQ_DESCRIPTOR_MULTIPLE
);
7191 vsi
->alloc_queue_pairs
= pf
->num_fcoe_qps
;
7192 vsi
->num_desc
= ALIGN(I40E_DEFAULT_NUM_DESCRIPTORS
,
7193 I40E_REQ_DESCRIPTOR_MULTIPLE
);
7194 vsi
->num_q_vectors
= pf
->num_fcoe_msix
;
7197 #endif /* I40E_FCOE */
7207 * i40e_vsi_alloc_arrays - Allocate queue and vector pointer arrays for the vsi
7208 * @type: VSI pointer
7209 * @alloc_qvectors: a bool to specify if q_vectors need to be allocated.
7211 * On error: returns error code (negative)
7212 * On success: returns 0
7214 static int i40e_vsi_alloc_arrays(struct i40e_vsi
*vsi
, bool alloc_qvectors
)
7219 /* allocate memory for both Tx and Rx ring pointers */
7220 size
= sizeof(struct i40e_ring
*) * vsi
->alloc_queue_pairs
* 2;
7221 vsi
->tx_rings
= kzalloc(size
, GFP_KERNEL
);
7224 vsi
->rx_rings
= &vsi
->tx_rings
[vsi
->alloc_queue_pairs
];
7226 if (alloc_qvectors
) {
7227 /* allocate memory for q_vector pointers */
7228 size
= sizeof(struct i40e_q_vector
*) * vsi
->num_q_vectors
;
7229 vsi
->q_vectors
= kzalloc(size
, GFP_KERNEL
);
7230 if (!vsi
->q_vectors
) {
7238 kfree(vsi
->tx_rings
);
7243 * i40e_vsi_mem_alloc - Allocates the next available struct vsi in the PF
7244 * @pf: board private structure
7245 * @type: type of VSI
7247 * On error: returns error code (negative)
7248 * On success: returns vsi index in PF (positive)
7250 static int i40e_vsi_mem_alloc(struct i40e_pf
*pf
, enum i40e_vsi_type type
)
7253 struct i40e_vsi
*vsi
;
7257 /* Need to protect the allocation of the VSIs at the PF level */
7258 mutex_lock(&pf
->switch_mutex
);
7260 /* VSI list may be fragmented if VSI creation/destruction has
7261 * been happening. We can afford to do a quick scan to look
7262 * for any free VSIs in the list.
7264 * find next empty vsi slot, looping back around if necessary
7267 while (i
< pf
->num_alloc_vsi
&& pf
->vsi
[i
])
7269 if (i
>= pf
->num_alloc_vsi
) {
7271 while (i
< pf
->next_vsi
&& pf
->vsi
[i
])
7275 if (i
< pf
->num_alloc_vsi
&& !pf
->vsi
[i
]) {
7276 vsi_idx
= i
; /* Found one! */
7279 goto unlock_pf
; /* out of VSI slots! */
7283 vsi
= kzalloc(sizeof(*vsi
), GFP_KERNEL
);
7290 set_bit(__I40E_DOWN
, &vsi
->state
);
7293 vsi
->rx_itr_setting
= pf
->rx_itr_default
;
7294 vsi
->tx_itr_setting
= pf
->tx_itr_default
;
7295 vsi
->int_rate_limit
= 0;
7296 vsi
->rss_table_size
= (vsi
->type
== I40E_VSI_MAIN
) ?
7297 pf
->rss_table_size
: 64;
7298 vsi
->netdev_registered
= false;
7299 vsi
->work_limit
= I40E_DEFAULT_IRQ_WORK
;
7300 INIT_LIST_HEAD(&vsi
->mac_filter_list
);
7301 vsi
->irqs_ready
= false;
7303 ret
= i40e_set_num_rings_in_vsi(vsi
);
7307 ret
= i40e_vsi_alloc_arrays(vsi
, true);
7311 /* Setup default MSIX irq handler for VSI */
7312 i40e_vsi_setup_irqhandler(vsi
, i40e_msix_clean_rings
);
7314 /* Initialize VSI lock */
7315 spin_lock_init(&vsi
->mac_filter_list_lock
);
7316 pf
->vsi
[vsi_idx
] = vsi
;
7321 pf
->next_vsi
= i
- 1;
7324 mutex_unlock(&pf
->switch_mutex
);
7329 * i40e_vsi_free_arrays - Free queue and vector pointer arrays for the VSI
7330 * @type: VSI pointer
7331 * @free_qvectors: a bool to specify if q_vectors need to be freed.
7333 * On error: returns error code (negative)
7334 * On success: returns 0
7336 static void i40e_vsi_free_arrays(struct i40e_vsi
*vsi
, bool free_qvectors
)
7338 /* free the ring and vector containers */
7339 if (free_qvectors
) {
7340 kfree(vsi
->q_vectors
);
7341 vsi
->q_vectors
= NULL
;
7343 kfree(vsi
->tx_rings
);
7344 vsi
->tx_rings
= NULL
;
7345 vsi
->rx_rings
= NULL
;
7349 * i40e_clear_rss_config_user - clear the user configured RSS hash keys
7351 * @vsi: Pointer to VSI structure
7353 static void i40e_clear_rss_config_user(struct i40e_vsi
*vsi
)
7358 kfree(vsi
->rss_hkey_user
);
7359 vsi
->rss_hkey_user
= NULL
;
7361 kfree(vsi
->rss_lut_user
);
7362 vsi
->rss_lut_user
= NULL
;
7366 * i40e_vsi_clear - Deallocate the VSI provided
7367 * @vsi: the VSI being un-configured
7369 static int i40e_vsi_clear(struct i40e_vsi
*vsi
)
7380 mutex_lock(&pf
->switch_mutex
);
7381 if (!pf
->vsi
[vsi
->idx
]) {
7382 dev_err(&pf
->pdev
->dev
, "pf->vsi[%d] is NULL, just free vsi[%d](%p,type %d)\n",
7383 vsi
->idx
, vsi
->idx
, vsi
, vsi
->type
);
7387 if (pf
->vsi
[vsi
->idx
] != vsi
) {
7388 dev_err(&pf
->pdev
->dev
,
7389 "pf->vsi[%d](%p, type %d) != vsi[%d](%p,type %d): no free!\n",
7390 pf
->vsi
[vsi
->idx
]->idx
,
7392 pf
->vsi
[vsi
->idx
]->type
,
7393 vsi
->idx
, vsi
, vsi
->type
);
7397 /* updates the PF for this cleared vsi */
7398 i40e_put_lump(pf
->qp_pile
, vsi
->base_queue
, vsi
->idx
);
7399 i40e_put_lump(pf
->irq_pile
, vsi
->base_vector
, vsi
->idx
);
7401 i40e_vsi_free_arrays(vsi
, true);
7402 i40e_clear_rss_config_user(vsi
);
7404 pf
->vsi
[vsi
->idx
] = NULL
;
7405 if (vsi
->idx
< pf
->next_vsi
)
7406 pf
->next_vsi
= vsi
->idx
;
7409 mutex_unlock(&pf
->switch_mutex
);
7417 * i40e_vsi_clear_rings - Deallocates the Rx and Tx rings for the provided VSI
7418 * @vsi: the VSI being cleaned
7420 static void i40e_vsi_clear_rings(struct i40e_vsi
*vsi
)
7424 if (vsi
->tx_rings
&& vsi
->tx_rings
[0]) {
7425 for (i
= 0; i
< vsi
->alloc_queue_pairs
; i
++) {
7426 kfree_rcu(vsi
->tx_rings
[i
], rcu
);
7427 vsi
->tx_rings
[i
] = NULL
;
7428 vsi
->rx_rings
[i
] = NULL
;
7434 * i40e_alloc_rings - Allocates the Rx and Tx rings for the provided VSI
7435 * @vsi: the VSI being configured
7437 static int i40e_alloc_rings(struct i40e_vsi
*vsi
)
7439 struct i40e_ring
*tx_ring
, *rx_ring
;
7440 struct i40e_pf
*pf
= vsi
->back
;
7443 /* Set basic values in the rings to be used later during open() */
7444 for (i
= 0; i
< vsi
->alloc_queue_pairs
; i
++) {
7445 /* allocate space for both Tx and Rx in one shot */
7446 tx_ring
= kzalloc(sizeof(struct i40e_ring
) * 2, GFP_KERNEL
);
7450 tx_ring
->queue_index
= i
;
7451 tx_ring
->reg_idx
= vsi
->base_queue
+ i
;
7452 tx_ring
->ring_active
= false;
7454 tx_ring
->netdev
= vsi
->netdev
;
7455 tx_ring
->dev
= &pf
->pdev
->dev
;
7456 tx_ring
->count
= vsi
->num_desc
;
7458 tx_ring
->dcb_tc
= 0;
7459 if (vsi
->back
->flags
& I40E_FLAG_WB_ON_ITR_CAPABLE
)
7460 tx_ring
->flags
= I40E_TXR_FLAGS_WB_ON_ITR
;
7461 if (vsi
->back
->flags
& I40E_FLAG_OUTER_UDP_CSUM_CAPABLE
)
7462 tx_ring
->flags
|= I40E_TXR_FLAGS_OUTER_UDP_CSUM
;
7463 vsi
->tx_rings
[i
] = tx_ring
;
7465 rx_ring
= &tx_ring
[1];
7466 rx_ring
->queue_index
= i
;
7467 rx_ring
->reg_idx
= vsi
->base_queue
+ i
;
7468 rx_ring
->ring_active
= false;
7470 rx_ring
->netdev
= vsi
->netdev
;
7471 rx_ring
->dev
= &pf
->pdev
->dev
;
7472 rx_ring
->count
= vsi
->num_desc
;
7474 rx_ring
->dcb_tc
= 0;
7475 if (pf
->flags
& I40E_FLAG_16BYTE_RX_DESC_ENABLED
)
7476 set_ring_16byte_desc_enabled(rx_ring
);
7478 clear_ring_16byte_desc_enabled(rx_ring
);
7479 vsi
->rx_rings
[i
] = rx_ring
;
7485 i40e_vsi_clear_rings(vsi
);
7490 * i40e_reserve_msix_vectors - Reserve MSI-X vectors in the kernel
7491 * @pf: board private structure
7492 * @vectors: the number of MSI-X vectors to request
7494 * Returns the number of vectors reserved, or error
7496 static int i40e_reserve_msix_vectors(struct i40e_pf
*pf
, int vectors
)
7498 vectors
= pci_enable_msix_range(pf
->pdev
, pf
->msix_entries
,
7499 I40E_MIN_MSIX
, vectors
);
7501 dev_info(&pf
->pdev
->dev
,
7502 "MSI-X vector reservation failed: %d\n", vectors
);
7510 * i40e_init_msix - Setup the MSIX capability
7511 * @pf: board private structure
7513 * Work with the OS to set up the MSIX vectors needed.
7515 * Returns the number of vectors reserved or negative on failure
7517 static int i40e_init_msix(struct i40e_pf
*pf
)
7519 struct i40e_hw
*hw
= &pf
->hw
;
7524 if (!(pf
->flags
& I40E_FLAG_MSIX_ENABLED
))
7527 /* The number of vectors we'll request will be comprised of:
7528 * - Add 1 for "other" cause for Admin Queue events, etc.
7529 * - The number of LAN queue pairs
7530 * - Queues being used for RSS.
7531 * We don't need as many as max_rss_size vectors.
7532 * use rss_size instead in the calculation since that
7533 * is governed by number of cpus in the system.
7534 * - assumes symmetric Tx/Rx pairing
7535 * - The number of VMDq pairs
7537 * - The number of FCOE qps.
7539 * Once we count this up, try the request.
7541 * If we can't get what we want, we'll simplify to nearly nothing
7542 * and try again. If that still fails, we punt.
7544 vectors_left
= hw
->func_caps
.num_msix_vectors
;
7547 /* reserve one vector for miscellaneous handler */
7553 /* reserve vectors for the main PF traffic queues */
7554 pf
->num_lan_msix
= min_t(int, num_online_cpus(), vectors_left
);
7555 vectors_left
-= pf
->num_lan_msix
;
7556 v_budget
+= pf
->num_lan_msix
;
7558 /* reserve one vector for sideband flow director */
7559 if (pf
->flags
& I40E_FLAG_FD_SB_ENABLED
) {
7564 pf
->flags
&= ~I40E_FLAG_FD_SB_ENABLED
;
7569 /* can we reserve enough for FCoE? */
7570 if (pf
->flags
& I40E_FLAG_FCOE_ENABLED
) {
7572 pf
->num_fcoe_msix
= 0;
7573 else if (vectors_left
>= pf
->num_fcoe_qps
)
7574 pf
->num_fcoe_msix
= pf
->num_fcoe_qps
;
7576 pf
->num_fcoe_msix
= 1;
7577 v_budget
+= pf
->num_fcoe_msix
;
7578 vectors_left
-= pf
->num_fcoe_msix
;
7582 /* any vectors left over go for VMDq support */
7583 if (pf
->flags
& I40E_FLAG_VMDQ_ENABLED
) {
7584 int vmdq_vecs_wanted
= pf
->num_vmdq_vsis
* pf
->num_vmdq_qps
;
7585 int vmdq_vecs
= min_t(int, vectors_left
, vmdq_vecs_wanted
);
7587 /* if we're short on vectors for what's desired, we limit
7588 * the queues per vmdq. If this is still more than are
7589 * available, the user will need to change the number of
7590 * queues/vectors used by the PF later with the ethtool
7593 if (vmdq_vecs
< vmdq_vecs_wanted
)
7594 pf
->num_vmdq_qps
= 1;
7595 pf
->num_vmdq_msix
= pf
->num_vmdq_qps
;
7597 v_budget
+= vmdq_vecs
;
7598 vectors_left
-= vmdq_vecs
;
7601 pf
->msix_entries
= kcalloc(v_budget
, sizeof(struct msix_entry
),
7603 if (!pf
->msix_entries
)
7606 for (i
= 0; i
< v_budget
; i
++)
7607 pf
->msix_entries
[i
].entry
= i
;
7608 v_actual
= i40e_reserve_msix_vectors(pf
, v_budget
);
7610 if (v_actual
!= v_budget
) {
7611 /* If we have limited resources, we will start with no vectors
7612 * for the special features and then allocate vectors to some
7613 * of these features based on the policy and at the end disable
7614 * the features that did not get any vectors.
7617 pf
->num_fcoe_qps
= 0;
7618 pf
->num_fcoe_msix
= 0;
7620 pf
->num_vmdq_msix
= 0;
7623 if (v_actual
< I40E_MIN_MSIX
) {
7624 pf
->flags
&= ~I40E_FLAG_MSIX_ENABLED
;
7625 kfree(pf
->msix_entries
);
7626 pf
->msix_entries
= NULL
;
7629 } else if (v_actual
== I40E_MIN_MSIX
) {
7630 /* Adjust for minimal MSIX use */
7631 pf
->num_vmdq_vsis
= 0;
7632 pf
->num_vmdq_qps
= 0;
7633 pf
->num_lan_qps
= 1;
7634 pf
->num_lan_msix
= 1;
7636 } else if (v_actual
!= v_budget
) {
7639 /* reserve the misc vector */
7642 /* Scale vector usage down */
7643 pf
->num_vmdq_msix
= 1; /* force VMDqs to only one vector */
7644 pf
->num_vmdq_vsis
= 1;
7645 pf
->num_vmdq_qps
= 1;
7646 pf
->flags
&= ~I40E_FLAG_FD_SB_ENABLED
;
7648 /* partition out the remaining vectors */
7651 pf
->num_lan_msix
= 1;
7655 /* give one vector to FCoE */
7656 if (pf
->flags
& I40E_FLAG_FCOE_ENABLED
) {
7657 pf
->num_lan_msix
= 1;
7658 pf
->num_fcoe_msix
= 1;
7661 pf
->num_lan_msix
= 2;
7666 /* give one vector to FCoE */
7667 if (pf
->flags
& I40E_FLAG_FCOE_ENABLED
) {
7668 pf
->num_fcoe_msix
= 1;
7672 /* give the rest to the PF */
7673 pf
->num_lan_msix
= min_t(int, vec
, pf
->num_lan_qps
);
7678 if ((pf
->flags
& I40E_FLAG_VMDQ_ENABLED
) &&
7679 (pf
->num_vmdq_msix
== 0)) {
7680 dev_info(&pf
->pdev
->dev
, "VMDq disabled, not enough MSI-X vectors\n");
7681 pf
->flags
&= ~I40E_FLAG_VMDQ_ENABLED
;
7685 if ((pf
->flags
& I40E_FLAG_FCOE_ENABLED
) && (pf
->num_fcoe_msix
== 0)) {
7686 dev_info(&pf
->pdev
->dev
, "FCOE disabled, not enough MSI-X vectors\n");
7687 pf
->flags
&= ~I40E_FLAG_FCOE_ENABLED
;
7694 * i40e_vsi_alloc_q_vector - Allocate memory for a single interrupt vector
7695 * @vsi: the VSI being configured
7696 * @v_idx: index of the vector in the vsi struct
7698 * We allocate one q_vector. If allocation fails we return -ENOMEM.
7700 static int i40e_vsi_alloc_q_vector(struct i40e_vsi
*vsi
, int v_idx
)
7702 struct i40e_q_vector
*q_vector
;
7704 /* allocate q_vector */
7705 q_vector
= kzalloc(sizeof(struct i40e_q_vector
), GFP_KERNEL
);
7709 q_vector
->vsi
= vsi
;
7710 q_vector
->v_idx
= v_idx
;
7711 cpumask_set_cpu(v_idx
, &q_vector
->affinity_mask
);
7713 netif_napi_add(vsi
->netdev
, &q_vector
->napi
,
7714 i40e_napi_poll
, NAPI_POLL_WEIGHT
);
7716 q_vector
->rx
.latency_range
= I40E_LOW_LATENCY
;
7717 q_vector
->tx
.latency_range
= I40E_LOW_LATENCY
;
7719 /* tie q_vector and vsi together */
7720 vsi
->q_vectors
[v_idx
] = q_vector
;
7726 * i40e_vsi_alloc_q_vectors - Allocate memory for interrupt vectors
7727 * @vsi: the VSI being configured
7729 * We allocate one q_vector per queue interrupt. If allocation fails we
7732 static int i40e_vsi_alloc_q_vectors(struct i40e_vsi
*vsi
)
7734 struct i40e_pf
*pf
= vsi
->back
;
7735 int v_idx
, num_q_vectors
;
7738 /* if not MSIX, give the one vector only to the LAN VSI */
7739 if (pf
->flags
& I40E_FLAG_MSIX_ENABLED
)
7740 num_q_vectors
= vsi
->num_q_vectors
;
7741 else if (vsi
== pf
->vsi
[pf
->lan_vsi
])
7746 for (v_idx
= 0; v_idx
< num_q_vectors
; v_idx
++) {
7747 err
= i40e_vsi_alloc_q_vector(vsi
, v_idx
);
7756 i40e_free_q_vector(vsi
, v_idx
);
7762 * i40e_init_interrupt_scheme - Determine proper interrupt scheme
7763 * @pf: board private structure to initialize
7765 static int i40e_init_interrupt_scheme(struct i40e_pf
*pf
)
7770 if (pf
->flags
& I40E_FLAG_MSIX_ENABLED
) {
7771 vectors
= i40e_init_msix(pf
);
7773 pf
->flags
&= ~(I40E_FLAG_MSIX_ENABLED
|
7775 I40E_FLAG_FCOE_ENABLED
|
7777 I40E_FLAG_RSS_ENABLED
|
7778 I40E_FLAG_DCB_CAPABLE
|
7779 I40E_FLAG_SRIOV_ENABLED
|
7780 I40E_FLAG_FD_SB_ENABLED
|
7781 I40E_FLAG_FD_ATR_ENABLED
|
7782 I40E_FLAG_VMDQ_ENABLED
);
7784 /* rework the queue expectations without MSIX */
7785 i40e_determine_queue_usage(pf
);
7789 if (!(pf
->flags
& I40E_FLAG_MSIX_ENABLED
) &&
7790 (pf
->flags
& I40E_FLAG_MSI_ENABLED
)) {
7791 dev_info(&pf
->pdev
->dev
, "MSI-X not available, trying MSI\n");
7792 vectors
= pci_enable_msi(pf
->pdev
);
7794 dev_info(&pf
->pdev
->dev
, "MSI init failed - %d\n",
7796 pf
->flags
&= ~I40E_FLAG_MSI_ENABLED
;
7798 vectors
= 1; /* one MSI or Legacy vector */
7801 if (!(pf
->flags
& (I40E_FLAG_MSIX_ENABLED
| I40E_FLAG_MSI_ENABLED
)))
7802 dev_info(&pf
->pdev
->dev
, "MSI-X and MSI not available, falling back to Legacy IRQ\n");
7804 /* set up vector assignment tracking */
7805 size
= sizeof(struct i40e_lump_tracking
) + (sizeof(u16
) * vectors
);
7806 pf
->irq_pile
= kzalloc(size
, GFP_KERNEL
);
7807 if (!pf
->irq_pile
) {
7808 dev_err(&pf
->pdev
->dev
, "error allocating irq_pile memory\n");
7811 pf
->irq_pile
->num_entries
= vectors
;
7812 pf
->irq_pile
->search_hint
= 0;
7814 /* track first vector for misc interrupts, ignore return */
7815 (void)i40e_get_lump(pf
, pf
->irq_pile
, 1, I40E_PILE_VALID_BIT
- 1);
7821 * i40e_setup_misc_vector - Setup the misc vector to handle non queue events
7822 * @pf: board private structure
7824 * This sets up the handler for MSIX 0, which is used to manage the
7825 * non-queue interrupts, e.g. AdminQ and errors. This is not used
7826 * when in MSI or Legacy interrupt mode.
7828 static int i40e_setup_misc_vector(struct i40e_pf
*pf
)
7830 struct i40e_hw
*hw
= &pf
->hw
;
7833 /* Only request the irq if this is the first time through, and
7834 * not when we're rebuilding after a Reset
7836 if (!test_bit(__I40E_RESET_RECOVERY_PENDING
, &pf
->state
)) {
7837 err
= request_irq(pf
->msix_entries
[0].vector
,
7838 i40e_intr
, 0, pf
->int_name
, pf
);
7840 dev_info(&pf
->pdev
->dev
,
7841 "request_irq for %s failed: %d\n",
7847 i40e_enable_misc_int_causes(pf
);
7849 /* associate no queues to the misc vector */
7850 wr32(hw
, I40E_PFINT_LNKLST0
, I40E_QUEUE_END_OF_LIST
);
7851 wr32(hw
, I40E_PFINT_ITR0(I40E_RX_ITR
), I40E_ITR_8K
);
7855 i40e_irq_dynamic_enable_icr0(pf
);
7861 * i40e_config_rss_aq - Prepare for RSS using AQ commands
7862 * @vsi: vsi structure
7863 * @seed: RSS hash seed
7865 static int i40e_config_rss_aq(struct i40e_vsi
*vsi
, const u8
*seed
,
7866 u8
*lut
, u16 lut_size
)
7868 struct i40e_aqc_get_set_rss_key_data rss_key
;
7869 struct i40e_pf
*pf
= vsi
->back
;
7870 struct i40e_hw
*hw
= &pf
->hw
;
7871 bool pf_lut
= false;
7875 memset(&rss_key
, 0, sizeof(rss_key
));
7876 memcpy(&rss_key
, seed
, sizeof(rss_key
));
7878 rss_lut
= kzalloc(pf
->rss_table_size
, GFP_KERNEL
);
7882 /* Populate the LUT with max no. of queues in round robin fashion */
7883 for (i
= 0; i
< vsi
->rss_table_size
; i
++)
7884 rss_lut
[i
] = i
% vsi
->rss_size
;
7886 ret
= i40e_aq_set_rss_key(hw
, vsi
->id
, &rss_key
);
7888 dev_info(&pf
->pdev
->dev
,
7889 "Cannot set RSS key, err %s aq_err %s\n",
7890 i40e_stat_str(&pf
->hw
, ret
),
7891 i40e_aq_str(&pf
->hw
, pf
->hw
.aq
.asq_last_status
));
7892 goto config_rss_aq_out
;
7895 if (vsi
->type
== I40E_VSI_MAIN
)
7898 ret
= i40e_aq_set_rss_lut(hw
, vsi
->id
, pf_lut
, rss_lut
,
7899 vsi
->rss_table_size
);
7901 dev_info(&pf
->pdev
->dev
,
7902 "Cannot set RSS lut, err %s aq_err %s\n",
7903 i40e_stat_str(&pf
->hw
, ret
),
7904 i40e_aq_str(&pf
->hw
, pf
->hw
.aq
.asq_last_status
));
7912 * i40e_vsi_config_rss - Prepare for VSI(VMDq) RSS if used
7913 * @vsi: VSI structure
7915 static int i40e_vsi_config_rss(struct i40e_vsi
*vsi
)
7917 u8 seed
[I40E_HKEY_ARRAY_SIZE
];
7918 struct i40e_pf
*pf
= vsi
->back
;
7922 if (!(pf
->flags
& I40E_FLAG_RSS_AQ_CAPABLE
))
7925 lut
= kzalloc(vsi
->rss_table_size
, GFP_KERNEL
);
7929 i40e_fill_rss_lut(pf
, lut
, vsi
->rss_table_size
, vsi
->rss_size
);
7930 netdev_rss_key_fill((void *)seed
, I40E_HKEY_ARRAY_SIZE
);
7931 vsi
->rss_size
= min_t(int, pf
->alloc_rss_size
, vsi
->num_queue_pairs
);
7932 ret
= i40e_config_rss_aq(vsi
, seed
, lut
, vsi
->rss_table_size
);
7939 * i40e_config_rss_reg - Configure RSS keys and lut by writing registers
7940 * @vsi: Pointer to vsi structure
7941 * @seed: RSS hash seed
7942 * @lut: Lookup table
7943 * @lut_size: Lookup table size
7945 * Returns 0 on success, negative on failure
7947 static int i40e_config_rss_reg(struct i40e_vsi
*vsi
, const u8
*seed
,
7948 const u8
*lut
, u16 lut_size
)
7950 struct i40e_pf
*pf
= vsi
->back
;
7951 struct i40e_hw
*hw
= &pf
->hw
;
7954 /* Fill out hash function seed */
7956 u32
*seed_dw
= (u32
*)seed
;
7958 for (i
= 0; i
<= I40E_PFQF_HKEY_MAX_INDEX
; i
++)
7959 wr32(hw
, I40E_PFQF_HKEY(i
), seed_dw
[i
]);
7963 u32
*lut_dw
= (u32
*)lut
;
7965 if (lut_size
!= I40E_HLUT_ARRAY_SIZE
)
7968 for (i
= 0; i
<= I40E_PFQF_HLUT_MAX_INDEX
; i
++)
7969 wr32(hw
, I40E_PFQF_HLUT(i
), lut_dw
[i
]);
7977 * i40e_get_rss_reg - Get the RSS keys and lut by reading registers
7978 * @vsi: Pointer to VSI structure
7979 * @seed: Buffer to store the keys
7980 * @lut: Buffer to store the lookup table entries
7981 * @lut_size: Size of buffer to store the lookup table entries
7983 * Returns 0 on success, negative on failure
7985 static int i40e_get_rss_reg(struct i40e_vsi
*vsi
, u8
*seed
,
7986 u8
*lut
, u16 lut_size
)
7988 struct i40e_pf
*pf
= vsi
->back
;
7989 struct i40e_hw
*hw
= &pf
->hw
;
7993 u32
*seed_dw
= (u32
*)seed
;
7995 for (i
= 0; i
<= I40E_PFQF_HKEY_MAX_INDEX
; i
++)
7996 seed_dw
[i
] = rd32(hw
, I40E_PFQF_HKEY(i
));
7999 u32
*lut_dw
= (u32
*)lut
;
8001 if (lut_size
!= I40E_HLUT_ARRAY_SIZE
)
8003 for (i
= 0; i
<= I40E_PFQF_HLUT_MAX_INDEX
; i
++)
8004 lut_dw
[i
] = rd32(hw
, I40E_PFQF_HLUT(i
));
8011 * i40e_config_rss - Configure RSS keys and lut
8012 * @vsi: Pointer to VSI structure
8013 * @seed: RSS hash seed
8014 * @lut: Lookup table
8015 * @lut_size: Lookup table size
8017 * Returns 0 on success, negative on failure
8019 int i40e_config_rss(struct i40e_vsi
*vsi
, u8
*seed
, u8
*lut
, u16 lut_size
)
8021 struct i40e_pf
*pf
= vsi
->back
;
8023 if (pf
->flags
& I40E_FLAG_RSS_AQ_CAPABLE
)
8024 return i40e_config_rss_aq(vsi
, seed
, lut
, lut_size
);
8026 return i40e_config_rss_reg(vsi
, seed
, lut
, lut_size
);
8030 * i40e_get_rss - Get RSS keys and lut
8031 * @vsi: Pointer to VSI structure
8032 * @seed: Buffer to store the keys
8033 * @lut: Buffer to store the lookup table entries
8034 * lut_size: Size of buffer to store the lookup table entries
8036 * Returns 0 on success, negative on failure
8038 int i40e_get_rss(struct i40e_vsi
*vsi
, u8
*seed
, u8
*lut
, u16 lut_size
)
8040 return i40e_get_rss_reg(vsi
, seed
, lut
, lut_size
);
8044 * i40e_fill_rss_lut - Fill the RSS lookup table with default values
8045 * @pf: Pointer to board private structure
8046 * @lut: Lookup table
8047 * @rss_table_size: Lookup table size
8048 * @rss_size: Range of queue number for hashing
8050 static void i40e_fill_rss_lut(struct i40e_pf
*pf
, u8
*lut
,
8051 u16 rss_table_size
, u16 rss_size
)
8055 for (i
= 0; i
< rss_table_size
; i
++)
8056 lut
[i
] = i
% rss_size
;
8060 * i40e_pf_config_rss - Prepare for RSS if used
8061 * @pf: board private structure
8063 static int i40e_pf_config_rss(struct i40e_pf
*pf
)
8065 struct i40e_vsi
*vsi
= pf
->vsi
[pf
->lan_vsi
];
8066 u8 seed
[I40E_HKEY_ARRAY_SIZE
];
8068 struct i40e_hw
*hw
= &pf
->hw
;
8073 /* By default we enable TCP/UDP with IPv4/IPv6 ptypes */
8074 hena
= (u64
)rd32(hw
, I40E_PFQF_HENA(0)) |
8075 ((u64
)rd32(hw
, I40E_PFQF_HENA(1)) << 32);
8076 hena
|= i40e_pf_get_default_rss_hena(pf
);
8078 wr32(hw
, I40E_PFQF_HENA(0), (u32
)hena
);
8079 wr32(hw
, I40E_PFQF_HENA(1), (u32
)(hena
>> 32));
8081 /* Determine the RSS table size based on the hardware capabilities */
8082 reg_val
= rd32(hw
, I40E_PFQF_CTL_0
);
8083 reg_val
= (pf
->rss_table_size
== 512) ?
8084 (reg_val
| I40E_PFQF_CTL_0_HASHLUTSIZE_512
) :
8085 (reg_val
& ~I40E_PFQF_CTL_0_HASHLUTSIZE_512
);
8086 wr32(hw
, I40E_PFQF_CTL_0
, reg_val
);
8088 /* Determine the RSS size of the VSI */
8090 vsi
->rss_size
= min_t(int, pf
->alloc_rss_size
,
8091 vsi
->num_queue_pairs
);
8093 lut
= kzalloc(vsi
->rss_table_size
, GFP_KERNEL
);
8097 /* Use user configured lut if there is one, otherwise use default */
8098 if (vsi
->rss_lut_user
)
8099 memcpy(lut
, vsi
->rss_lut_user
, vsi
->rss_table_size
);
8101 i40e_fill_rss_lut(pf
, lut
, vsi
->rss_table_size
, vsi
->rss_size
);
8103 /* Use user configured hash key if there is one, otherwise
8106 if (vsi
->rss_hkey_user
)
8107 memcpy(seed
, vsi
->rss_hkey_user
, I40E_HKEY_ARRAY_SIZE
);
8109 netdev_rss_key_fill((void *)seed
, I40E_HKEY_ARRAY_SIZE
);
8110 ret
= i40e_config_rss(vsi
, seed
, lut
, vsi
->rss_table_size
);
8117 * i40e_reconfig_rss_queues - change number of queues for rss and rebuild
8118 * @pf: board private structure
8119 * @queue_count: the requested queue count for rss.
8121 * returns 0 if rss is not enabled, if enabled returns the final rss queue
8122 * count which may be different from the requested queue count.
8124 int i40e_reconfig_rss_queues(struct i40e_pf
*pf
, int queue_count
)
8126 struct i40e_vsi
*vsi
= pf
->vsi
[pf
->lan_vsi
];
8129 if (!(pf
->flags
& I40E_FLAG_RSS_ENABLED
))
8132 new_rss_size
= min_t(int, queue_count
, pf
->rss_size_max
);
8134 if (queue_count
!= vsi
->num_queue_pairs
) {
8135 vsi
->req_queue_pairs
= queue_count
;
8136 i40e_prep_for_reset(pf
);
8138 pf
->alloc_rss_size
= new_rss_size
;
8140 i40e_reset_and_rebuild(pf
, true);
8142 /* Discard the user configured hash keys and lut, if less
8143 * queues are enabled.
8145 if (queue_count
< vsi
->rss_size
) {
8146 i40e_clear_rss_config_user(vsi
);
8147 dev_dbg(&pf
->pdev
->dev
,
8148 "discard user configured hash keys and lut\n");
8151 /* Reset vsi->rss_size, as number of enabled queues changed */
8152 vsi
->rss_size
= min_t(int, pf
->alloc_rss_size
,
8153 vsi
->num_queue_pairs
);
8155 i40e_pf_config_rss(pf
);
8157 dev_info(&pf
->pdev
->dev
, "RSS count/HW max RSS count: %d/%d\n",
8158 pf
->alloc_rss_size
, pf
->rss_size_max
);
8159 return pf
->alloc_rss_size
;
8163 * i40e_get_npar_bw_setting - Retrieve BW settings for this PF partition
8164 * @pf: board private structure
8166 i40e_status
i40e_get_npar_bw_setting(struct i40e_pf
*pf
)
8169 bool min_valid
, max_valid
;
8172 status
= i40e_read_bw_from_alt_ram(&pf
->hw
, &max_bw
, &min_bw
,
8173 &min_valid
, &max_valid
);
8177 pf
->npar_min_bw
= min_bw
;
8179 pf
->npar_max_bw
= max_bw
;
8186 * i40e_set_npar_bw_setting - Set BW settings for this PF partition
8187 * @pf: board private structure
8189 i40e_status
i40e_set_npar_bw_setting(struct i40e_pf
*pf
)
8191 struct i40e_aqc_configure_partition_bw_data bw_data
;
8194 /* Set the valid bit for this PF */
8195 bw_data
.pf_valid_bits
= cpu_to_le16(BIT(pf
->hw
.pf_id
));
8196 bw_data
.max_bw
[pf
->hw
.pf_id
] = pf
->npar_max_bw
& I40E_ALT_BW_VALUE_MASK
;
8197 bw_data
.min_bw
[pf
->hw
.pf_id
] = pf
->npar_min_bw
& I40E_ALT_BW_VALUE_MASK
;
8199 /* Set the new bandwidths */
8200 status
= i40e_aq_configure_partition_bw(&pf
->hw
, &bw_data
, NULL
);
8206 * i40e_commit_npar_bw_setting - Commit BW settings for this PF partition
8207 * @pf: board private structure
8209 i40e_status
i40e_commit_npar_bw_setting(struct i40e_pf
*pf
)
8211 /* Commit temporary BW setting to permanent NVM image */
8212 enum i40e_admin_queue_err last_aq_status
;
8216 if (pf
->hw
.partition_id
!= 1) {
8217 dev_info(&pf
->pdev
->dev
,
8218 "Commit BW only works on partition 1! This is partition %d",
8219 pf
->hw
.partition_id
);
8220 ret
= I40E_NOT_SUPPORTED
;
8224 /* Acquire NVM for read access */
8225 ret
= i40e_acquire_nvm(&pf
->hw
, I40E_RESOURCE_READ
);
8226 last_aq_status
= pf
->hw
.aq
.asq_last_status
;
8228 dev_info(&pf
->pdev
->dev
,
8229 "Cannot acquire NVM for read access, err %s aq_err %s\n",
8230 i40e_stat_str(&pf
->hw
, ret
),
8231 i40e_aq_str(&pf
->hw
, last_aq_status
));
8235 /* Read word 0x10 of NVM - SW compatibility word 1 */
8236 ret
= i40e_aq_read_nvm(&pf
->hw
,
8237 I40E_SR_NVM_CONTROL_WORD
,
8238 0x10, sizeof(nvm_word
), &nvm_word
,
8240 /* Save off last admin queue command status before releasing
8243 last_aq_status
= pf
->hw
.aq
.asq_last_status
;
8244 i40e_release_nvm(&pf
->hw
);
8246 dev_info(&pf
->pdev
->dev
, "NVM read error, err %s aq_err %s\n",
8247 i40e_stat_str(&pf
->hw
, ret
),
8248 i40e_aq_str(&pf
->hw
, last_aq_status
));
8252 /* Wait a bit for NVM release to complete */
8255 /* Acquire NVM for write access */
8256 ret
= i40e_acquire_nvm(&pf
->hw
, I40E_RESOURCE_WRITE
);
8257 last_aq_status
= pf
->hw
.aq
.asq_last_status
;
8259 dev_info(&pf
->pdev
->dev
,
8260 "Cannot acquire NVM for write access, err %s aq_err %s\n",
8261 i40e_stat_str(&pf
->hw
, ret
),
8262 i40e_aq_str(&pf
->hw
, last_aq_status
));
8265 /* Write it back out unchanged to initiate update NVM,
8266 * which will force a write of the shadow (alt) RAM to
8267 * the NVM - thus storing the bandwidth values permanently.
8269 ret
= i40e_aq_update_nvm(&pf
->hw
,
8270 I40E_SR_NVM_CONTROL_WORD
,
8271 0x10, sizeof(nvm_word
),
8272 &nvm_word
, true, NULL
);
8273 /* Save off last admin queue command status before releasing
8276 last_aq_status
= pf
->hw
.aq
.asq_last_status
;
8277 i40e_release_nvm(&pf
->hw
);
8279 dev_info(&pf
->pdev
->dev
,
8280 "BW settings NOT SAVED, err %s aq_err %s\n",
8281 i40e_stat_str(&pf
->hw
, ret
),
8282 i40e_aq_str(&pf
->hw
, last_aq_status
));
8289 * i40e_sw_init - Initialize general software structures (struct i40e_pf)
8290 * @pf: board private structure to initialize
8292 * i40e_sw_init initializes the Adapter private data structure.
8293 * Fields are initialized based on PCI device information and
8294 * OS network device settings (MTU size).
8296 static int i40e_sw_init(struct i40e_pf
*pf
)
8301 pf
->msg_enable
= netif_msg_init(I40E_DEFAULT_MSG_ENABLE
,
8302 (NETIF_MSG_DRV
|NETIF_MSG_PROBE
|NETIF_MSG_LINK
));
8303 pf
->hw
.debug_mask
= pf
->msg_enable
| I40E_DEBUG_DIAG
;
8304 if (debug
!= -1 && debug
!= I40E_DEFAULT_MSG_ENABLE
) {
8305 if (I40E_DEBUG_USER
& debug
)
8306 pf
->hw
.debug_mask
= debug
;
8307 pf
->msg_enable
= netif_msg_init((debug
& ~I40E_DEBUG_USER
),
8308 I40E_DEFAULT_MSG_ENABLE
);
8311 /* Set default capability flags */
8312 pf
->flags
= I40E_FLAG_RX_CSUM_ENABLED
|
8313 I40E_FLAG_MSI_ENABLED
|
8314 I40E_FLAG_LINK_POLLING_ENABLED
|
8315 I40E_FLAG_MSIX_ENABLED
;
8317 if (iommu_present(&pci_bus_type
))
8318 pf
->flags
|= I40E_FLAG_RX_PS_ENABLED
;
8320 pf
->flags
|= I40E_FLAG_RX_1BUF_ENABLED
;
8322 /* Set default ITR */
8323 pf
->rx_itr_default
= I40E_ITR_DYNAMIC
| I40E_ITR_RX_DEF
;
8324 pf
->tx_itr_default
= I40E_ITR_DYNAMIC
| I40E_ITR_TX_DEF
;
8326 /* Depending on PF configurations, it is possible that the RSS
8327 * maximum might end up larger than the available queues
8329 pf
->rss_size_max
= BIT(pf
->hw
.func_caps
.rss_table_entry_width
);
8330 pf
->alloc_rss_size
= 1;
8331 pf
->rss_table_size
= pf
->hw
.func_caps
.rss_table_size
;
8332 pf
->rss_size_max
= min_t(int, pf
->rss_size_max
,
8333 pf
->hw
.func_caps
.num_tx_qp
);
8334 if (pf
->hw
.func_caps
.rss
) {
8335 pf
->flags
|= I40E_FLAG_RSS_ENABLED
;
8336 pf
->alloc_rss_size
= min_t(int, pf
->rss_size_max
,
8340 /* MFP mode enabled */
8341 if (pf
->hw
.func_caps
.npar_enable
|| pf
->hw
.func_caps
.flex10_enable
) {
8342 pf
->flags
|= I40E_FLAG_MFP_ENABLED
;
8343 dev_info(&pf
->pdev
->dev
, "MFP mode Enabled\n");
8344 if (i40e_get_npar_bw_setting(pf
))
8345 dev_warn(&pf
->pdev
->dev
,
8346 "Could not get NPAR bw settings\n");
8348 dev_info(&pf
->pdev
->dev
,
8349 "Min BW = %8.8x, Max BW = %8.8x\n",
8350 pf
->npar_min_bw
, pf
->npar_max_bw
);
8353 /* FW/NVM is not yet fixed in this regard */
8354 if ((pf
->hw
.func_caps
.fd_filters_guaranteed
> 0) ||
8355 (pf
->hw
.func_caps
.fd_filters_best_effort
> 0)) {
8356 pf
->flags
|= I40E_FLAG_FD_ATR_ENABLED
;
8357 pf
->atr_sample_rate
= I40E_DEFAULT_ATR_SAMPLE_RATE
;
8358 if (pf
->flags
& I40E_FLAG_MFP_ENABLED
&&
8359 pf
->hw
.num_partitions
> 1)
8360 dev_info(&pf
->pdev
->dev
,
8361 "Flow Director Sideband mode Disabled in MFP mode\n");
8363 pf
->flags
|= I40E_FLAG_FD_SB_ENABLED
;
8364 pf
->fdir_pf_filter_count
=
8365 pf
->hw
.func_caps
.fd_filters_guaranteed
;
8366 pf
->hw
.fdir_shared_filter_count
=
8367 pf
->hw
.func_caps
.fd_filters_best_effort
;
8370 if (pf
->hw
.func_caps
.vmdq
) {
8371 pf
->num_vmdq_vsis
= I40E_DEFAULT_NUM_VMDQ_VSI
;
8372 pf
->flags
|= I40E_FLAG_VMDQ_ENABLED
;
8373 pf
->num_vmdq_qps
= i40e_default_queues_per_vmdq(pf
);
8377 i40e_init_pf_fcoe(pf
);
8379 #endif /* I40E_FCOE */
8380 #ifdef CONFIG_PCI_IOV
8381 if (pf
->hw
.func_caps
.num_vfs
&& pf
->hw
.partition_id
== 1) {
8382 pf
->num_vf_qps
= I40E_DEFAULT_QUEUES_PER_VF
;
8383 pf
->flags
|= I40E_FLAG_SRIOV_ENABLED
;
8384 pf
->num_req_vfs
= min_t(int,
8385 pf
->hw
.func_caps
.num_vfs
,
8388 #endif /* CONFIG_PCI_IOV */
8389 if (pf
->hw
.mac
.type
== I40E_MAC_X722
) {
8390 pf
->flags
|= I40E_FLAG_RSS_AQ_CAPABLE
|
8391 I40E_FLAG_128_QP_RSS_CAPABLE
|
8392 I40E_FLAG_HW_ATR_EVICT_CAPABLE
|
8393 I40E_FLAG_OUTER_UDP_CSUM_CAPABLE
|
8394 I40E_FLAG_WB_ON_ITR_CAPABLE
|
8395 I40E_FLAG_MULTIPLE_TCP_UDP_RSS_PCTYPE
|
8396 I40E_FLAG_GENEVE_OFFLOAD_CAPABLE
;
8398 pf
->eeprom_version
= 0xDEAD;
8399 pf
->lan_veb
= I40E_NO_VEB
;
8400 pf
->lan_vsi
= I40E_NO_VSI
;
8402 /* By default FW has this off for performance reasons */
8403 pf
->flags
&= ~I40E_FLAG_VEB_STATS_ENABLED
;
8405 /* set up queue assignment tracking */
8406 size
= sizeof(struct i40e_lump_tracking
)
8407 + (sizeof(u16
) * pf
->hw
.func_caps
.num_tx_qp
);
8408 pf
->qp_pile
= kzalloc(size
, GFP_KERNEL
);
8413 pf
->qp_pile
->num_entries
= pf
->hw
.func_caps
.num_tx_qp
;
8414 pf
->qp_pile
->search_hint
= 0;
8416 pf
->tx_timeout_recovery_level
= 1;
8418 mutex_init(&pf
->switch_mutex
);
8420 /* If NPAR is enabled nudge the Tx scheduler */
8421 if (pf
->hw
.func_caps
.npar_enable
&& (!i40e_get_npar_bw_setting(pf
)))
8422 i40e_set_npar_bw_setting(pf
);
8429 * i40e_set_ntuple - set the ntuple feature flag and take action
8430 * @pf: board private structure to initialize
8431 * @features: the feature set that the stack is suggesting
8433 * returns a bool to indicate if reset needs to happen
8435 bool i40e_set_ntuple(struct i40e_pf
*pf
, netdev_features_t features
)
8437 bool need_reset
= false;
8439 /* Check if Flow Director n-tuple support was enabled or disabled. If
8440 * the state changed, we need to reset.
8442 if (features
& NETIF_F_NTUPLE
) {
8443 /* Enable filters and mark for reset */
8444 if (!(pf
->flags
& I40E_FLAG_FD_SB_ENABLED
))
8446 pf
->flags
|= I40E_FLAG_FD_SB_ENABLED
;
8448 /* turn off filters, mark for reset and clear SW filter list */
8449 if (pf
->flags
& I40E_FLAG_FD_SB_ENABLED
) {
8451 i40e_fdir_filter_exit(pf
);
8453 pf
->flags
&= ~I40E_FLAG_FD_SB_ENABLED
;
8454 pf
->auto_disable_flags
&= ~I40E_FLAG_FD_SB_ENABLED
;
8455 /* reset fd counters */
8456 pf
->fd_add_err
= pf
->fd_atr_cnt
= pf
->fd_tcp_rule
= 0;
8457 pf
->fdir_pf_active_filters
= 0;
8458 pf
->flags
|= I40E_FLAG_FD_ATR_ENABLED
;
8459 if (I40E_DEBUG_FD
& pf
->hw
.debug_mask
)
8460 dev_info(&pf
->pdev
->dev
, "ATR re-enabled.\n");
8461 /* if ATR was auto disabled it can be re-enabled. */
8462 if ((pf
->flags
& I40E_FLAG_FD_ATR_ENABLED
) &&
8463 (pf
->auto_disable_flags
& I40E_FLAG_FD_ATR_ENABLED
))
8464 pf
->auto_disable_flags
&= ~I40E_FLAG_FD_ATR_ENABLED
;
8470 * i40e_set_features - set the netdev feature flags
8471 * @netdev: ptr to the netdev being adjusted
8472 * @features: the feature set that the stack is suggesting
8474 static int i40e_set_features(struct net_device
*netdev
,
8475 netdev_features_t features
)
8477 struct i40e_netdev_priv
*np
= netdev_priv(netdev
);
8478 struct i40e_vsi
*vsi
= np
->vsi
;
8479 struct i40e_pf
*pf
= vsi
->back
;
8482 if (features
& NETIF_F_HW_VLAN_CTAG_RX
)
8483 i40e_vlan_stripping_enable(vsi
);
8485 i40e_vlan_stripping_disable(vsi
);
8487 need_reset
= i40e_set_ntuple(pf
, features
);
8490 i40e_do_reset(pf
, BIT_ULL(__I40E_PF_RESET_REQUESTED
));
8495 #if IS_ENABLED(CONFIG_VXLAN) || IS_ENABLED(CONFIG_GENEVE)
8497 * i40e_get_udp_port_idx - Lookup a possibly offloaded for Rx UDP port
8498 * @pf: board private structure
8499 * @port: The UDP port to look up
8501 * Returns the index number or I40E_MAX_PF_UDP_OFFLOAD_PORTS if port not found
8503 static u8
i40e_get_udp_port_idx(struct i40e_pf
*pf
, __be16 port
)
8507 for (i
= 0; i
< I40E_MAX_PF_UDP_OFFLOAD_PORTS
; i
++) {
8508 if (pf
->udp_ports
[i
].index
== port
)
8517 #if IS_ENABLED(CONFIG_VXLAN)
8519 * i40e_add_vxlan_port - Get notifications about VXLAN ports that come up
8520 * @netdev: This physical port's netdev
8521 * @sa_family: Socket Family that VXLAN is notifying us about
8522 * @port: New UDP port number that VXLAN started listening to
8524 static void i40e_add_vxlan_port(struct net_device
*netdev
,
8525 sa_family_t sa_family
, __be16 port
)
8527 struct i40e_netdev_priv
*np
= netdev_priv(netdev
);
8528 struct i40e_vsi
*vsi
= np
->vsi
;
8529 struct i40e_pf
*pf
= vsi
->back
;
8533 if (sa_family
== AF_INET6
)
8536 idx
= i40e_get_udp_port_idx(pf
, port
);
8538 /* Check if port already exists */
8539 if (idx
< I40E_MAX_PF_UDP_OFFLOAD_PORTS
) {
8540 netdev_info(netdev
, "vxlan port %d already offloaded\n",
8545 /* Now check if there is space to add the new port */
8546 next_idx
= i40e_get_udp_port_idx(pf
, 0);
8548 if (next_idx
== I40E_MAX_PF_UDP_OFFLOAD_PORTS
) {
8549 netdev_info(netdev
, "maximum number of vxlan UDP ports reached, not adding port %d\n",
8554 /* New port: add it and mark its index in the bitmap */
8555 pf
->udp_ports
[next_idx
].index
= port
;
8556 pf
->udp_ports
[next_idx
].type
= I40E_AQC_TUNNEL_TYPE_VXLAN
;
8557 pf
->pending_udp_bitmap
|= BIT_ULL(next_idx
);
8558 pf
->flags
|= I40E_FLAG_UDP_FILTER_SYNC
;
8562 * i40e_del_vxlan_port - Get notifications about VXLAN ports that go away
8563 * @netdev: This physical port's netdev
8564 * @sa_family: Socket Family that VXLAN is notifying us about
8565 * @port: UDP port number that VXLAN stopped listening to
8567 static void i40e_del_vxlan_port(struct net_device
*netdev
,
8568 sa_family_t sa_family
, __be16 port
)
8570 struct i40e_netdev_priv
*np
= netdev_priv(netdev
);
8571 struct i40e_vsi
*vsi
= np
->vsi
;
8572 struct i40e_pf
*pf
= vsi
->back
;
8575 if (sa_family
== AF_INET6
)
8578 idx
= i40e_get_udp_port_idx(pf
, port
);
8580 /* Check if port already exists */
8581 if (idx
< I40E_MAX_PF_UDP_OFFLOAD_PORTS
) {
8582 /* if port exists, set it to 0 (mark for deletion)
8583 * and make it pending
8585 pf
->udp_ports
[idx
].index
= 0;
8586 pf
->pending_udp_bitmap
|= BIT_ULL(idx
);
8587 pf
->flags
|= I40E_FLAG_UDP_FILTER_SYNC
;
8589 netdev_warn(netdev
, "vxlan port %d was not found, not deleting\n",
8595 #if IS_ENABLED(CONFIG_GENEVE)
8597 * i40e_add_geneve_port - Get notifications about GENEVE ports that come up
8598 * @netdev: This physical port's netdev
8599 * @sa_family: Socket Family that GENEVE is notifying us about
8600 * @port: New UDP port number that GENEVE started listening to
8602 static void i40e_add_geneve_port(struct net_device
*netdev
,
8603 sa_family_t sa_family
, __be16 port
)
8605 struct i40e_netdev_priv
*np
= netdev_priv(netdev
);
8606 struct i40e_vsi
*vsi
= np
->vsi
;
8607 struct i40e_pf
*pf
= vsi
->back
;
8611 if (sa_family
== AF_INET6
)
8614 idx
= i40e_get_udp_port_idx(pf
, port
);
8616 /* Check if port already exists */
8617 if (idx
< I40E_MAX_PF_UDP_OFFLOAD_PORTS
) {
8618 netdev_info(netdev
, "udp port %d already offloaded\n",
8623 /* Now check if there is space to add the new port */
8624 next_idx
= i40e_get_udp_port_idx(pf
, 0);
8626 if (next_idx
== I40E_MAX_PF_UDP_OFFLOAD_PORTS
) {
8627 netdev_info(netdev
, "maximum number of UDP ports reached, not adding port %d\n",
8632 /* New port: add it and mark its index in the bitmap */
8633 pf
->udp_ports
[next_idx
].index
= port
;
8634 pf
->udp_ports
[next_idx
].type
= I40E_AQC_TUNNEL_TYPE_NGE
;
8635 pf
->pending_udp_bitmap
|= BIT_ULL(next_idx
);
8636 pf
->flags
|= I40E_FLAG_UDP_FILTER_SYNC
;
8638 dev_info(&pf
->pdev
->dev
, "adding geneve port %d\n", ntohs(port
));
8642 * i40e_del_geneve_port - Get notifications about GENEVE ports that go away
8643 * @netdev: This physical port's netdev
8644 * @sa_family: Socket Family that GENEVE is notifying us about
8645 * @port: UDP port number that GENEVE stopped listening to
8647 static void i40e_del_geneve_port(struct net_device
*netdev
,
8648 sa_family_t sa_family
, __be16 port
)
8650 struct i40e_netdev_priv
*np
= netdev_priv(netdev
);
8651 struct i40e_vsi
*vsi
= np
->vsi
;
8652 struct i40e_pf
*pf
= vsi
->back
;
8655 if (sa_family
== AF_INET6
)
8658 idx
= i40e_get_udp_port_idx(pf
, port
);
8660 /* Check if port already exists */
8661 if (idx
< I40E_MAX_PF_UDP_OFFLOAD_PORTS
) {
8662 /* if port exists, set it to 0 (mark for deletion)
8663 * and make it pending
8665 pf
->udp_ports
[idx
].index
= 0;
8666 pf
->pending_udp_bitmap
|= BIT_ULL(idx
);
8667 pf
->flags
|= I40E_FLAG_UDP_FILTER_SYNC
;
8669 dev_info(&pf
->pdev
->dev
, "deleting geneve port %d\n",
8672 netdev_warn(netdev
, "geneve port %d was not found, not deleting\n",
8678 static int i40e_get_phys_port_id(struct net_device
*netdev
,
8679 struct netdev_phys_item_id
*ppid
)
8681 struct i40e_netdev_priv
*np
= netdev_priv(netdev
);
8682 struct i40e_pf
*pf
= np
->vsi
->back
;
8683 struct i40e_hw
*hw
= &pf
->hw
;
8685 if (!(pf
->flags
& I40E_FLAG_PORT_ID_VALID
))
8688 ppid
->id_len
= min_t(int, sizeof(hw
->mac
.port_addr
), sizeof(ppid
->id
));
8689 memcpy(ppid
->id
, hw
->mac
.port_addr
, ppid
->id_len
);
8695 * i40e_ndo_fdb_add - add an entry to the hardware database
8696 * @ndm: the input from the stack
8697 * @tb: pointer to array of nladdr (unused)
8698 * @dev: the net device pointer
8699 * @addr: the MAC address entry being added
8700 * @flags: instructions from stack about fdb operation
8702 static int i40e_ndo_fdb_add(struct ndmsg
*ndm
, struct nlattr
*tb
[],
8703 struct net_device
*dev
,
8704 const unsigned char *addr
, u16 vid
,
8707 struct i40e_netdev_priv
*np
= netdev_priv(dev
);
8708 struct i40e_pf
*pf
= np
->vsi
->back
;
8711 if (!(pf
->flags
& I40E_FLAG_SRIOV_ENABLED
))
8715 pr_info("%s: vlans aren't supported yet for dev_uc|mc_add()\n", dev
->name
);
8719 /* Hardware does not support aging addresses so if a
8720 * ndm_state is given only allow permanent addresses
8722 if (ndm
->ndm_state
&& !(ndm
->ndm_state
& NUD_PERMANENT
)) {
8723 netdev_info(dev
, "FDB only supports static addresses\n");
8727 if (is_unicast_ether_addr(addr
) || is_link_local_ether_addr(addr
))
8728 err
= dev_uc_add_excl(dev
, addr
);
8729 else if (is_multicast_ether_addr(addr
))
8730 err
= dev_mc_add_excl(dev
, addr
);
8734 /* Only return duplicate errors if NLM_F_EXCL is set */
8735 if (err
== -EEXIST
&& !(flags
& NLM_F_EXCL
))
8742 * i40e_ndo_bridge_setlink - Set the hardware bridge mode
8743 * @dev: the netdev being configured
8744 * @nlh: RTNL message
8746 * Inserts a new hardware bridge if not already created and
8747 * enables the bridging mode requested (VEB or VEPA). If the
8748 * hardware bridge has already been inserted and the request
8749 * is to change the mode then that requires a PF reset to
8750 * allow rebuild of the components with required hardware
8751 * bridge mode enabled.
8753 static int i40e_ndo_bridge_setlink(struct net_device
*dev
,
8754 struct nlmsghdr
*nlh
,
8757 struct i40e_netdev_priv
*np
= netdev_priv(dev
);
8758 struct i40e_vsi
*vsi
= np
->vsi
;
8759 struct i40e_pf
*pf
= vsi
->back
;
8760 struct i40e_veb
*veb
= NULL
;
8761 struct nlattr
*attr
, *br_spec
;
8764 /* Only for PF VSI for now */
8765 if (vsi
->seid
!= pf
->vsi
[pf
->lan_vsi
]->seid
)
8768 /* Find the HW bridge for PF VSI */
8769 for (i
= 0; i
< I40E_MAX_VEB
&& !veb
; i
++) {
8770 if (pf
->veb
[i
] && pf
->veb
[i
]->seid
== vsi
->uplink_seid
)
8774 br_spec
= nlmsg_find_attr(nlh
, sizeof(struct ifinfomsg
), IFLA_AF_SPEC
);
8776 nla_for_each_nested(attr
, br_spec
, rem
) {
8779 if (nla_type(attr
) != IFLA_BRIDGE_MODE
)
8782 mode
= nla_get_u16(attr
);
8783 if ((mode
!= BRIDGE_MODE_VEPA
) &&
8784 (mode
!= BRIDGE_MODE_VEB
))
8787 /* Insert a new HW bridge */
8789 veb
= i40e_veb_setup(pf
, 0, vsi
->uplink_seid
, vsi
->seid
,
8790 vsi
->tc_config
.enabled_tc
);
8792 veb
->bridge_mode
= mode
;
8793 i40e_config_bridge_mode(veb
);
8795 /* No Bridge HW offload available */
8799 } else if (mode
!= veb
->bridge_mode
) {
8800 /* Existing HW bridge but different mode needs reset */
8801 veb
->bridge_mode
= mode
;
8802 /* TODO: If no VFs or VMDq VSIs, disallow VEB mode */
8803 if (mode
== BRIDGE_MODE_VEB
)
8804 pf
->flags
|= I40E_FLAG_VEB_MODE_ENABLED
;
8806 pf
->flags
&= ~I40E_FLAG_VEB_MODE_ENABLED
;
8807 i40e_do_reset(pf
, BIT_ULL(__I40E_PF_RESET_REQUESTED
));
8816 * i40e_ndo_bridge_getlink - Get the hardware bridge mode
8819 * @seq: RTNL message seq #
8820 * @dev: the netdev being configured
8821 * @filter_mask: unused
8822 * @nlflags: netlink flags passed in
8824 * Return the mode in which the hardware bridge is operating in
8827 static int i40e_ndo_bridge_getlink(struct sk_buff
*skb
, u32 pid
, u32 seq
,
8828 struct net_device
*dev
,
8829 u32 __always_unused filter_mask
,
8832 struct i40e_netdev_priv
*np
= netdev_priv(dev
);
8833 struct i40e_vsi
*vsi
= np
->vsi
;
8834 struct i40e_pf
*pf
= vsi
->back
;
8835 struct i40e_veb
*veb
= NULL
;
8838 /* Only for PF VSI for now */
8839 if (vsi
->seid
!= pf
->vsi
[pf
->lan_vsi
]->seid
)
8842 /* Find the HW bridge for the PF VSI */
8843 for (i
= 0; i
< I40E_MAX_VEB
&& !veb
; i
++) {
8844 if (pf
->veb
[i
] && pf
->veb
[i
]->seid
== vsi
->uplink_seid
)
8851 return ndo_dflt_bridge_getlink(skb
, pid
, seq
, dev
, veb
->bridge_mode
,
8852 nlflags
, 0, 0, filter_mask
, NULL
);
8855 /* Hardware supports L4 tunnel length of 128B (=2^7) which includes
8856 * inner mac plus all inner ethertypes.
8858 #define I40E_MAX_TUNNEL_HDR_LEN 128
8860 * i40e_features_check - Validate encapsulated packet conforms to limits
8862 * @dev: This physical port's netdev
8863 * @features: Offload features that the stack believes apply
8865 static netdev_features_t
i40e_features_check(struct sk_buff
*skb
,
8866 struct net_device
*dev
,
8867 netdev_features_t features
)
8869 if (skb
->encapsulation
&&
8870 ((skb_inner_network_header(skb
) - skb_transport_header(skb
)) >
8871 I40E_MAX_TUNNEL_HDR_LEN
))
8872 return features
& ~(NETIF_F_CSUM_MASK
| NETIF_F_GSO_MASK
);
8877 static const struct net_device_ops i40e_netdev_ops
= {
8878 .ndo_open
= i40e_open
,
8879 .ndo_stop
= i40e_close
,
8880 .ndo_start_xmit
= i40e_lan_xmit_frame
,
8881 .ndo_get_stats64
= i40e_get_netdev_stats_struct
,
8882 .ndo_set_rx_mode
= i40e_set_rx_mode
,
8883 .ndo_validate_addr
= eth_validate_addr
,
8884 .ndo_set_mac_address
= i40e_set_mac
,
8885 .ndo_change_mtu
= i40e_change_mtu
,
8886 .ndo_do_ioctl
= i40e_ioctl
,
8887 .ndo_tx_timeout
= i40e_tx_timeout
,
8888 .ndo_vlan_rx_add_vid
= i40e_vlan_rx_add_vid
,
8889 .ndo_vlan_rx_kill_vid
= i40e_vlan_rx_kill_vid
,
8890 #ifdef CONFIG_NET_POLL_CONTROLLER
8891 .ndo_poll_controller
= i40e_netpoll
,
8893 .ndo_setup_tc
= i40e_setup_tc
,
8895 .ndo_fcoe_enable
= i40e_fcoe_enable
,
8896 .ndo_fcoe_disable
= i40e_fcoe_disable
,
8898 .ndo_set_features
= i40e_set_features
,
8899 .ndo_set_vf_mac
= i40e_ndo_set_vf_mac
,
8900 .ndo_set_vf_vlan
= i40e_ndo_set_vf_port_vlan
,
8901 .ndo_set_vf_rate
= i40e_ndo_set_vf_bw
,
8902 .ndo_get_vf_config
= i40e_ndo_get_vf_config
,
8903 .ndo_set_vf_link_state
= i40e_ndo_set_vf_link_state
,
8904 .ndo_set_vf_spoofchk
= i40e_ndo_set_vf_spoofchk
,
8905 #if IS_ENABLED(CONFIG_VXLAN)
8906 .ndo_add_vxlan_port
= i40e_add_vxlan_port
,
8907 .ndo_del_vxlan_port
= i40e_del_vxlan_port
,
8909 #if IS_ENABLED(CONFIG_GENEVE)
8910 .ndo_add_geneve_port
= i40e_add_geneve_port
,
8911 .ndo_del_geneve_port
= i40e_del_geneve_port
,
8913 .ndo_get_phys_port_id
= i40e_get_phys_port_id
,
8914 .ndo_fdb_add
= i40e_ndo_fdb_add
,
8915 .ndo_features_check
= i40e_features_check
,
8916 .ndo_bridge_getlink
= i40e_ndo_bridge_getlink
,
8917 .ndo_bridge_setlink
= i40e_ndo_bridge_setlink
,
8921 * i40e_config_netdev - Setup the netdev flags
8922 * @vsi: the VSI being configured
8924 * Returns 0 on success, negative value on failure
8926 static int i40e_config_netdev(struct i40e_vsi
*vsi
)
8928 u8 brdcast
[ETH_ALEN
] = {0xff, 0xff, 0xff, 0xff, 0xff, 0xff};
8929 struct i40e_pf
*pf
= vsi
->back
;
8930 struct i40e_hw
*hw
= &pf
->hw
;
8931 struct i40e_netdev_priv
*np
;
8932 struct net_device
*netdev
;
8933 u8 mac_addr
[ETH_ALEN
];
8936 etherdev_size
= sizeof(struct i40e_netdev_priv
);
8937 netdev
= alloc_etherdev_mq(etherdev_size
, vsi
->alloc_queue_pairs
);
8941 vsi
->netdev
= netdev
;
8942 np
= netdev_priv(netdev
);
8945 netdev
->hw_enc_features
|= NETIF_F_IP_CSUM
|
8947 NETIF_F_GSO_UDP_TUNNEL
|
8951 netdev
->features
= NETIF_F_SG
|
8955 NETIF_F_GSO_UDP_TUNNEL
|
8957 NETIF_F_HW_VLAN_CTAG_TX
|
8958 NETIF_F_HW_VLAN_CTAG_RX
|
8959 NETIF_F_HW_VLAN_CTAG_FILTER
|
8968 if (!(pf
->flags
& I40E_FLAG_MFP_ENABLED
))
8969 netdev
->features
|= NETIF_F_NTUPLE
;
8971 /* copy netdev features into list of user selectable features */
8972 netdev
->hw_features
|= netdev
->features
;
8974 if (vsi
->type
== I40E_VSI_MAIN
) {
8975 SET_NETDEV_DEV(netdev
, &pf
->pdev
->dev
);
8976 ether_addr_copy(mac_addr
, hw
->mac
.perm_addr
);
8977 /* The following steps are necessary to prevent reception
8978 * of tagged packets - some older NVM configurations load a
8979 * default a MAC-VLAN filter that accepts any tagged packet
8980 * which must be replaced by a normal filter.
8982 if (!i40e_rm_default_mac_filter(vsi
, mac_addr
)) {
8983 spin_lock_bh(&vsi
->mac_filter_list_lock
);
8984 i40e_add_filter(vsi
, mac_addr
,
8985 I40E_VLAN_ANY
, false, true);
8986 spin_unlock_bh(&vsi
->mac_filter_list_lock
);
8989 /* relate the VSI_VMDQ name to the VSI_MAIN name */
8990 snprintf(netdev
->name
, IFNAMSIZ
, "%sv%%d",
8991 pf
->vsi
[pf
->lan_vsi
]->netdev
->name
);
8992 random_ether_addr(mac_addr
);
8994 spin_lock_bh(&vsi
->mac_filter_list_lock
);
8995 i40e_add_filter(vsi
, mac_addr
, I40E_VLAN_ANY
, false, false);
8996 spin_unlock_bh(&vsi
->mac_filter_list_lock
);
8999 spin_lock_bh(&vsi
->mac_filter_list_lock
);
9000 i40e_add_filter(vsi
, brdcast
, I40E_VLAN_ANY
, false, false);
9001 spin_unlock_bh(&vsi
->mac_filter_list_lock
);
9003 ether_addr_copy(netdev
->dev_addr
, mac_addr
);
9004 ether_addr_copy(netdev
->perm_addr
, mac_addr
);
9005 /* vlan gets same features (except vlan offload)
9006 * after any tweaks for specific VSI types
9008 netdev
->vlan_features
= netdev
->features
& ~(NETIF_F_HW_VLAN_CTAG_TX
|
9009 NETIF_F_HW_VLAN_CTAG_RX
|
9010 NETIF_F_HW_VLAN_CTAG_FILTER
);
9011 netdev
->priv_flags
|= IFF_UNICAST_FLT
;
9012 netdev
->priv_flags
|= IFF_SUPP_NOFCS
;
9013 /* Setup netdev TC information */
9014 i40e_vsi_config_netdev_tc(vsi
, vsi
->tc_config
.enabled_tc
);
9016 netdev
->netdev_ops
= &i40e_netdev_ops
;
9017 netdev
->watchdog_timeo
= 5 * HZ
;
9018 i40e_set_ethtool_ops(netdev
);
9020 i40e_fcoe_config_netdev(netdev
, vsi
);
9027 * i40e_vsi_delete - Delete a VSI from the switch
9028 * @vsi: the VSI being removed
9030 * Returns 0 on success, negative value on failure
9032 static void i40e_vsi_delete(struct i40e_vsi
*vsi
)
9034 /* remove default VSI is not allowed */
9035 if (vsi
== vsi
->back
->vsi
[vsi
->back
->lan_vsi
])
9038 i40e_aq_delete_element(&vsi
->back
->hw
, vsi
->seid
, NULL
);
9042 * i40e_is_vsi_uplink_mode_veb - Check if the VSI's uplink bridge mode is VEB
9043 * @vsi: the VSI being queried
9045 * Returns 1 if HW bridge mode is VEB and return 0 in case of VEPA mode
9047 int i40e_is_vsi_uplink_mode_veb(struct i40e_vsi
*vsi
)
9049 struct i40e_veb
*veb
;
9050 struct i40e_pf
*pf
= vsi
->back
;
9052 /* Uplink is not a bridge so default to VEB */
9053 if (vsi
->veb_idx
== I40E_NO_VEB
)
9056 veb
= pf
->veb
[vsi
->veb_idx
];
9058 dev_info(&pf
->pdev
->dev
,
9059 "There is no veb associated with the bridge\n");
9063 /* Uplink is a bridge in VEPA mode */
9064 if (veb
->bridge_mode
& BRIDGE_MODE_VEPA
) {
9067 /* Uplink is a bridge in VEB mode */
9071 /* VEPA is now default bridge, so return 0 */
9076 * i40e_add_vsi - Add a VSI to the switch
9077 * @vsi: the VSI being configured
9079 * This initializes a VSI context depending on the VSI type to be added and
9080 * passes it down to the add_vsi aq command.
9082 static int i40e_add_vsi(struct i40e_vsi
*vsi
)
9085 u8 laa_macaddr
[ETH_ALEN
];
9086 bool found_laa_mac_filter
= false;
9087 struct i40e_pf
*pf
= vsi
->back
;
9088 struct i40e_hw
*hw
= &pf
->hw
;
9089 struct i40e_vsi_context ctxt
;
9090 struct i40e_mac_filter
*f
, *ftmp
;
9092 u8 enabled_tc
= 0x1; /* TC0 enabled */
9095 memset(&ctxt
, 0, sizeof(ctxt
));
9096 switch (vsi
->type
) {
9098 /* The PF's main VSI is already setup as part of the
9099 * device initialization, so we'll not bother with
9100 * the add_vsi call, but we will retrieve the current
9103 ctxt
.seid
= pf
->main_vsi_seid
;
9104 ctxt
.pf_num
= pf
->hw
.pf_id
;
9106 ret
= i40e_aq_get_vsi_params(&pf
->hw
, &ctxt
, NULL
);
9107 ctxt
.flags
= I40E_AQ_VSI_TYPE_PF
;
9109 dev_info(&pf
->pdev
->dev
,
9110 "couldn't get PF vsi config, err %s aq_err %s\n",
9111 i40e_stat_str(&pf
->hw
, ret
),
9112 i40e_aq_str(&pf
->hw
,
9113 pf
->hw
.aq
.asq_last_status
));
9116 vsi
->info
= ctxt
.info
;
9117 vsi
->info
.valid_sections
= 0;
9119 vsi
->seid
= ctxt
.seid
;
9120 vsi
->id
= ctxt
.vsi_number
;
9122 enabled_tc
= i40e_pf_get_tc_map(pf
);
9124 /* MFP mode setup queue map and update VSI */
9125 if ((pf
->flags
& I40E_FLAG_MFP_ENABLED
) &&
9126 !(pf
->hw
.func_caps
.iscsi
)) { /* NIC type PF */
9127 memset(&ctxt
, 0, sizeof(ctxt
));
9128 ctxt
.seid
= pf
->main_vsi_seid
;
9129 ctxt
.pf_num
= pf
->hw
.pf_id
;
9131 i40e_vsi_setup_queue_map(vsi
, &ctxt
, enabled_tc
, false);
9132 ret
= i40e_aq_update_vsi_params(hw
, &ctxt
, NULL
);
9134 dev_info(&pf
->pdev
->dev
,
9135 "update vsi failed, err %s aq_err %s\n",
9136 i40e_stat_str(&pf
->hw
, ret
),
9137 i40e_aq_str(&pf
->hw
,
9138 pf
->hw
.aq
.asq_last_status
));
9142 /* update the local VSI info queue map */
9143 i40e_vsi_update_queue_map(vsi
, &ctxt
);
9144 vsi
->info
.valid_sections
= 0;
9146 /* Default/Main VSI is only enabled for TC0
9147 * reconfigure it to enable all TCs that are
9148 * available on the port in SFP mode.
9149 * For MFP case the iSCSI PF would use this
9150 * flow to enable LAN+iSCSI TC.
9152 ret
= i40e_vsi_config_tc(vsi
, enabled_tc
);
9154 dev_info(&pf
->pdev
->dev
,
9155 "failed to configure TCs for main VSI tc_map 0x%08x, err %s aq_err %s\n",
9157 i40e_stat_str(&pf
->hw
, ret
),
9158 i40e_aq_str(&pf
->hw
,
9159 pf
->hw
.aq
.asq_last_status
));
9166 ctxt
.pf_num
= hw
->pf_id
;
9168 ctxt
.uplink_seid
= vsi
->uplink_seid
;
9169 ctxt
.connection_type
= I40E_AQ_VSI_CONN_TYPE_NORMAL
;
9170 ctxt
.flags
= I40E_AQ_VSI_TYPE_PF
;
9171 if ((pf
->flags
& I40E_FLAG_VEB_MODE_ENABLED
) &&
9172 (i40e_is_vsi_uplink_mode_veb(vsi
))) {
9173 ctxt
.info
.valid_sections
|=
9174 cpu_to_le16(I40E_AQ_VSI_PROP_SWITCH_VALID
);
9175 ctxt
.info
.switch_id
=
9176 cpu_to_le16(I40E_AQ_VSI_SW_ID_FLAG_ALLOW_LB
);
9178 i40e_vsi_setup_queue_map(vsi
, &ctxt
, enabled_tc
, true);
9181 case I40E_VSI_VMDQ2
:
9182 ctxt
.pf_num
= hw
->pf_id
;
9184 ctxt
.uplink_seid
= vsi
->uplink_seid
;
9185 ctxt
.connection_type
= I40E_AQ_VSI_CONN_TYPE_NORMAL
;
9186 ctxt
.flags
= I40E_AQ_VSI_TYPE_VMDQ2
;
9188 /* This VSI is connected to VEB so the switch_id
9189 * should be set to zero by default.
9191 if (i40e_is_vsi_uplink_mode_veb(vsi
)) {
9192 ctxt
.info
.valid_sections
|=
9193 cpu_to_le16(I40E_AQ_VSI_PROP_SWITCH_VALID
);
9194 ctxt
.info
.switch_id
=
9195 cpu_to_le16(I40E_AQ_VSI_SW_ID_FLAG_ALLOW_LB
);
9198 /* Setup the VSI tx/rx queue map for TC0 only for now */
9199 i40e_vsi_setup_queue_map(vsi
, &ctxt
, enabled_tc
, true);
9202 case I40E_VSI_SRIOV
:
9203 ctxt
.pf_num
= hw
->pf_id
;
9204 ctxt
.vf_num
= vsi
->vf_id
+ hw
->func_caps
.vf_base_id
;
9205 ctxt
.uplink_seid
= vsi
->uplink_seid
;
9206 ctxt
.connection_type
= I40E_AQ_VSI_CONN_TYPE_NORMAL
;
9207 ctxt
.flags
= I40E_AQ_VSI_TYPE_VF
;
9209 /* This VSI is connected to VEB so the switch_id
9210 * should be set to zero by default.
9212 if (i40e_is_vsi_uplink_mode_veb(vsi
)) {
9213 ctxt
.info
.valid_sections
|=
9214 cpu_to_le16(I40E_AQ_VSI_PROP_SWITCH_VALID
);
9215 ctxt
.info
.switch_id
=
9216 cpu_to_le16(I40E_AQ_VSI_SW_ID_FLAG_ALLOW_LB
);
9219 ctxt
.info
.valid_sections
|= cpu_to_le16(I40E_AQ_VSI_PROP_VLAN_VALID
);
9220 ctxt
.info
.port_vlan_flags
|= I40E_AQ_VSI_PVLAN_MODE_ALL
;
9221 if (pf
->vf
[vsi
->vf_id
].spoofchk
) {
9222 ctxt
.info
.valid_sections
|=
9223 cpu_to_le16(I40E_AQ_VSI_PROP_SECURITY_VALID
);
9224 ctxt
.info
.sec_flags
|=
9225 (I40E_AQ_VSI_SEC_FLAG_ENABLE_VLAN_CHK
|
9226 I40E_AQ_VSI_SEC_FLAG_ENABLE_MAC_CHK
);
9228 /* Setup the VSI tx/rx queue map for TC0 only for now */
9229 i40e_vsi_setup_queue_map(vsi
, &ctxt
, enabled_tc
, true);
9234 ret
= i40e_fcoe_vsi_init(vsi
, &ctxt
);
9236 dev_info(&pf
->pdev
->dev
, "failed to initialize FCoE VSI\n");
9241 #endif /* I40E_FCOE */
9246 if (vsi
->type
!= I40E_VSI_MAIN
) {
9247 ret
= i40e_aq_add_vsi(hw
, &ctxt
, NULL
);
9249 dev_info(&vsi
->back
->pdev
->dev
,
9250 "add vsi failed, err %s aq_err %s\n",
9251 i40e_stat_str(&pf
->hw
, ret
),
9252 i40e_aq_str(&pf
->hw
,
9253 pf
->hw
.aq
.asq_last_status
));
9257 vsi
->info
= ctxt
.info
;
9258 vsi
->info
.valid_sections
= 0;
9259 vsi
->seid
= ctxt
.seid
;
9260 vsi
->id
= ctxt
.vsi_number
;
9263 spin_lock_bh(&vsi
->mac_filter_list_lock
);
9264 /* If macvlan filters already exist, force them to get loaded */
9265 list_for_each_entry_safe(f
, ftmp
, &vsi
->mac_filter_list
, list
) {
9269 /* Expected to have only one MAC filter entry for LAA in list */
9270 if (f
->is_laa
&& vsi
->type
== I40E_VSI_MAIN
) {
9271 ether_addr_copy(laa_macaddr
, f
->macaddr
);
9272 found_laa_mac_filter
= true;
9275 spin_unlock_bh(&vsi
->mac_filter_list_lock
);
9277 if (found_laa_mac_filter
) {
9278 struct i40e_aqc_remove_macvlan_element_data element
;
9280 memset(&element
, 0, sizeof(element
));
9281 ether_addr_copy(element
.mac_addr
, laa_macaddr
);
9282 element
.flags
= I40E_AQC_MACVLAN_DEL_PERFECT_MATCH
;
9283 ret
= i40e_aq_remove_macvlan(hw
, vsi
->seid
,
9286 /* some older FW has a different default */
9288 I40E_AQC_MACVLAN_DEL_IGNORE_VLAN
;
9289 i40e_aq_remove_macvlan(hw
, vsi
->seid
,
9293 i40e_aq_mac_address_write(hw
,
9294 I40E_AQC_WRITE_TYPE_LAA_WOL
,
9299 vsi
->flags
|= I40E_VSI_FLAG_FILTER_CHANGED
;
9300 pf
->flags
|= I40E_FLAG_FILTER_SYNC
;
9303 /* Update VSI BW information */
9304 ret
= i40e_vsi_get_bw_info(vsi
);
9306 dev_info(&pf
->pdev
->dev
,
9307 "couldn't get vsi bw info, err %s aq_err %s\n",
9308 i40e_stat_str(&pf
->hw
, ret
),
9309 i40e_aq_str(&pf
->hw
, pf
->hw
.aq
.asq_last_status
));
9310 /* VSI is already added so not tearing that up */
9319 * i40e_vsi_release - Delete a VSI and free its resources
9320 * @vsi: the VSI being removed
9322 * Returns 0 on success or < 0 on error
9324 int i40e_vsi_release(struct i40e_vsi
*vsi
)
9326 struct i40e_mac_filter
*f
, *ftmp
;
9327 struct i40e_veb
*veb
= NULL
;
9334 /* release of a VEB-owner or last VSI is not allowed */
9335 if (vsi
->flags
& I40E_VSI_FLAG_VEB_OWNER
) {
9336 dev_info(&pf
->pdev
->dev
, "VSI %d has existing VEB %d\n",
9337 vsi
->seid
, vsi
->uplink_seid
);
9340 if (vsi
== pf
->vsi
[pf
->lan_vsi
] &&
9341 !test_bit(__I40E_DOWN
, &pf
->state
)) {
9342 dev_info(&pf
->pdev
->dev
, "Can't remove PF VSI\n");
9346 uplink_seid
= vsi
->uplink_seid
;
9347 if (vsi
->type
!= I40E_VSI_SRIOV
) {
9348 if (vsi
->netdev_registered
) {
9349 vsi
->netdev_registered
= false;
9351 /* results in a call to i40e_close() */
9352 unregister_netdev(vsi
->netdev
);
9355 i40e_vsi_close(vsi
);
9357 i40e_vsi_disable_irq(vsi
);
9360 spin_lock_bh(&vsi
->mac_filter_list_lock
);
9361 list_for_each_entry_safe(f
, ftmp
, &vsi
->mac_filter_list
, list
)
9362 i40e_del_filter(vsi
, f
->macaddr
, f
->vlan
,
9363 f
->is_vf
, f
->is_netdev
);
9364 spin_unlock_bh(&vsi
->mac_filter_list_lock
);
9366 i40e_sync_vsi_filters(vsi
);
9368 i40e_vsi_delete(vsi
);
9369 i40e_vsi_free_q_vectors(vsi
);
9371 free_netdev(vsi
->netdev
);
9374 i40e_vsi_clear_rings(vsi
);
9375 i40e_vsi_clear(vsi
);
9377 /* If this was the last thing on the VEB, except for the
9378 * controlling VSI, remove the VEB, which puts the controlling
9379 * VSI onto the next level down in the switch.
9381 * Well, okay, there's one more exception here: don't remove
9382 * the orphan VEBs yet. We'll wait for an explicit remove request
9383 * from up the network stack.
9385 for (n
= 0, i
= 0; i
< pf
->num_alloc_vsi
; i
++) {
9387 pf
->vsi
[i
]->uplink_seid
== uplink_seid
&&
9388 (pf
->vsi
[i
]->flags
& I40E_VSI_FLAG_VEB_OWNER
) == 0) {
9389 n
++; /* count the VSIs */
9392 for (i
= 0; i
< I40E_MAX_VEB
; i
++) {
9395 if (pf
->veb
[i
]->uplink_seid
== uplink_seid
)
9396 n
++; /* count the VEBs */
9397 if (pf
->veb
[i
]->seid
== uplink_seid
)
9400 if (n
== 0 && veb
&& veb
->uplink_seid
!= 0)
9401 i40e_veb_release(veb
);
9407 * i40e_vsi_setup_vectors - Set up the q_vectors for the given VSI
9408 * @vsi: ptr to the VSI
9410 * This should only be called after i40e_vsi_mem_alloc() which allocates the
9411 * corresponding SW VSI structure and initializes num_queue_pairs for the
9412 * newly allocated VSI.
9414 * Returns 0 on success or negative on failure
9416 static int i40e_vsi_setup_vectors(struct i40e_vsi
*vsi
)
9419 struct i40e_pf
*pf
= vsi
->back
;
9421 if (vsi
->q_vectors
[0]) {
9422 dev_info(&pf
->pdev
->dev
, "VSI %d has existing q_vectors\n",
9427 if (vsi
->base_vector
) {
9428 dev_info(&pf
->pdev
->dev
, "VSI %d has non-zero base vector %d\n",
9429 vsi
->seid
, vsi
->base_vector
);
9433 ret
= i40e_vsi_alloc_q_vectors(vsi
);
9435 dev_info(&pf
->pdev
->dev
,
9436 "failed to allocate %d q_vector for VSI %d, ret=%d\n",
9437 vsi
->num_q_vectors
, vsi
->seid
, ret
);
9438 vsi
->num_q_vectors
= 0;
9439 goto vector_setup_out
;
9442 /* In Legacy mode, we do not have to get any other vector since we
9443 * piggyback on the misc/ICR0 for queue interrupts.
9445 if (!(pf
->flags
& I40E_FLAG_MSIX_ENABLED
))
9447 if (vsi
->num_q_vectors
)
9448 vsi
->base_vector
= i40e_get_lump(pf
, pf
->irq_pile
,
9449 vsi
->num_q_vectors
, vsi
->idx
);
9450 if (vsi
->base_vector
< 0) {
9451 dev_info(&pf
->pdev
->dev
,
9452 "failed to get tracking for %d vectors for VSI %d, err=%d\n",
9453 vsi
->num_q_vectors
, vsi
->seid
, vsi
->base_vector
);
9454 i40e_vsi_free_q_vectors(vsi
);
9456 goto vector_setup_out
;
9464 * i40e_vsi_reinit_setup - return and reallocate resources for a VSI
9465 * @vsi: pointer to the vsi.
9467 * This re-allocates a vsi's queue resources.
9469 * Returns pointer to the successfully allocated and configured VSI sw struct
9470 * on success, otherwise returns NULL on failure.
9472 static struct i40e_vsi
*i40e_vsi_reinit_setup(struct i40e_vsi
*vsi
)
9474 struct i40e_pf
*pf
= vsi
->back
;
9478 i40e_put_lump(pf
->qp_pile
, vsi
->base_queue
, vsi
->idx
);
9479 i40e_vsi_clear_rings(vsi
);
9481 i40e_vsi_free_arrays(vsi
, false);
9482 i40e_set_num_rings_in_vsi(vsi
);
9483 ret
= i40e_vsi_alloc_arrays(vsi
, false);
9487 ret
= i40e_get_lump(pf
, pf
->qp_pile
, vsi
->alloc_queue_pairs
, vsi
->idx
);
9489 dev_info(&pf
->pdev
->dev
,
9490 "failed to get tracking for %d queues for VSI %d err %d\n",
9491 vsi
->alloc_queue_pairs
, vsi
->seid
, ret
);
9494 vsi
->base_queue
= ret
;
9496 /* Update the FW view of the VSI. Force a reset of TC and queue
9497 * layout configurations.
9499 enabled_tc
= pf
->vsi
[pf
->lan_vsi
]->tc_config
.enabled_tc
;
9500 pf
->vsi
[pf
->lan_vsi
]->tc_config
.enabled_tc
= 0;
9501 pf
->vsi
[pf
->lan_vsi
]->seid
= pf
->main_vsi_seid
;
9502 i40e_vsi_config_tc(pf
->vsi
[pf
->lan_vsi
], enabled_tc
);
9504 /* assign it some queues */
9505 ret
= i40e_alloc_rings(vsi
);
9509 /* map all of the rings to the q_vectors */
9510 i40e_vsi_map_rings_to_vectors(vsi
);
9514 i40e_vsi_free_q_vectors(vsi
);
9515 if (vsi
->netdev_registered
) {
9516 vsi
->netdev_registered
= false;
9517 unregister_netdev(vsi
->netdev
);
9518 free_netdev(vsi
->netdev
);
9521 i40e_aq_delete_element(&pf
->hw
, vsi
->seid
, NULL
);
9523 i40e_vsi_clear(vsi
);
9528 * i40e_macaddr_init - explicitly write the mac address filters.
9530 * @vsi: pointer to the vsi.
9531 * @macaddr: the MAC address
9533 * This is needed when the macaddr has been obtained by other
9534 * means than the default, e.g., from Open Firmware or IDPROM.
9535 * Returns 0 on success, negative on failure
9537 static int i40e_macaddr_init(struct i40e_vsi
*vsi
, u8
*macaddr
)
9540 struct i40e_aqc_add_macvlan_element_data element
;
9542 ret
= i40e_aq_mac_address_write(&vsi
->back
->hw
,
9543 I40E_AQC_WRITE_TYPE_LAA_WOL
,
9546 dev_info(&vsi
->back
->pdev
->dev
,
9547 "Addr change for VSI failed: %d\n", ret
);
9548 return -EADDRNOTAVAIL
;
9551 memset(&element
, 0, sizeof(element
));
9552 ether_addr_copy(element
.mac_addr
, macaddr
);
9553 element
.flags
= cpu_to_le16(I40E_AQC_MACVLAN_ADD_PERFECT_MATCH
);
9554 ret
= i40e_aq_add_macvlan(&vsi
->back
->hw
, vsi
->seid
, &element
, 1, NULL
);
9556 dev_info(&vsi
->back
->pdev
->dev
,
9557 "add filter failed err %s aq_err %s\n",
9558 i40e_stat_str(&vsi
->back
->hw
, ret
),
9559 i40e_aq_str(&vsi
->back
->hw
,
9560 vsi
->back
->hw
.aq
.asq_last_status
));
9566 * i40e_vsi_setup - Set up a VSI by a given type
9567 * @pf: board private structure
9569 * @uplink_seid: the switch element to link to
9570 * @param1: usage depends upon VSI type. For VF types, indicates VF id
9572 * This allocates the sw VSI structure and its queue resources, then add a VSI
9573 * to the identified VEB.
9575 * Returns pointer to the successfully allocated and configure VSI sw struct on
9576 * success, otherwise returns NULL on failure.
9578 struct i40e_vsi
*i40e_vsi_setup(struct i40e_pf
*pf
, u8 type
,
9579 u16 uplink_seid
, u32 param1
)
9581 struct i40e_vsi
*vsi
= NULL
;
9582 struct i40e_veb
*veb
= NULL
;
9586 /* The requested uplink_seid must be either
9587 * - the PF's port seid
9588 * no VEB is needed because this is the PF
9589 * or this is a Flow Director special case VSI
9590 * - seid of an existing VEB
9591 * - seid of a VSI that owns an existing VEB
9592 * - seid of a VSI that doesn't own a VEB
9593 * a new VEB is created and the VSI becomes the owner
9594 * - seid of the PF VSI, which is what creates the first VEB
9595 * this is a special case of the previous
9597 * Find which uplink_seid we were given and create a new VEB if needed
9599 for (i
= 0; i
< I40E_MAX_VEB
; i
++) {
9600 if (pf
->veb
[i
] && pf
->veb
[i
]->seid
== uplink_seid
) {
9606 if (!veb
&& uplink_seid
!= pf
->mac_seid
) {
9608 for (i
= 0; i
< pf
->num_alloc_vsi
; i
++) {
9609 if (pf
->vsi
[i
] && pf
->vsi
[i
]->seid
== uplink_seid
) {
9615 dev_info(&pf
->pdev
->dev
, "no such uplink_seid %d\n",
9620 if (vsi
->uplink_seid
== pf
->mac_seid
)
9621 veb
= i40e_veb_setup(pf
, 0, pf
->mac_seid
, vsi
->seid
,
9622 vsi
->tc_config
.enabled_tc
);
9623 else if ((vsi
->flags
& I40E_VSI_FLAG_VEB_OWNER
) == 0)
9624 veb
= i40e_veb_setup(pf
, 0, vsi
->uplink_seid
, vsi
->seid
,
9625 vsi
->tc_config
.enabled_tc
);
9627 if (vsi
->seid
!= pf
->vsi
[pf
->lan_vsi
]->seid
) {
9628 dev_info(&vsi
->back
->pdev
->dev
,
9629 "New VSI creation error, uplink seid of LAN VSI expected.\n");
9632 /* We come up by default in VEPA mode if SRIOV is not
9633 * already enabled, in which case we can't force VEPA
9636 if (!(pf
->flags
& I40E_FLAG_VEB_MODE_ENABLED
)) {
9637 veb
->bridge_mode
= BRIDGE_MODE_VEPA
;
9638 pf
->flags
&= ~I40E_FLAG_VEB_MODE_ENABLED
;
9640 i40e_config_bridge_mode(veb
);
9642 for (i
= 0; i
< I40E_MAX_VEB
&& !veb
; i
++) {
9643 if (pf
->veb
[i
] && pf
->veb
[i
]->seid
== vsi
->uplink_seid
)
9647 dev_info(&pf
->pdev
->dev
, "couldn't add VEB\n");
9651 vsi
->flags
|= I40E_VSI_FLAG_VEB_OWNER
;
9652 uplink_seid
= veb
->seid
;
9655 /* get vsi sw struct */
9656 v_idx
= i40e_vsi_mem_alloc(pf
, type
);
9659 vsi
= pf
->vsi
[v_idx
];
9663 vsi
->veb_idx
= (veb
? veb
->idx
: I40E_NO_VEB
);
9665 if (type
== I40E_VSI_MAIN
)
9666 pf
->lan_vsi
= v_idx
;
9667 else if (type
== I40E_VSI_SRIOV
)
9668 vsi
->vf_id
= param1
;
9669 /* assign it some queues */
9670 ret
= i40e_get_lump(pf
, pf
->qp_pile
, vsi
->alloc_queue_pairs
,
9673 dev_info(&pf
->pdev
->dev
,
9674 "failed to get tracking for %d queues for VSI %d err=%d\n",
9675 vsi
->alloc_queue_pairs
, vsi
->seid
, ret
);
9678 vsi
->base_queue
= ret
;
9680 /* get a VSI from the hardware */
9681 vsi
->uplink_seid
= uplink_seid
;
9682 ret
= i40e_add_vsi(vsi
);
9686 switch (vsi
->type
) {
9687 /* setup the netdev if needed */
9689 /* Apply relevant filters if a platform-specific mac
9690 * address was selected.
9692 if (!!(pf
->flags
& I40E_FLAG_PF_MAC
)) {
9693 ret
= i40e_macaddr_init(vsi
, pf
->hw
.mac
.addr
);
9695 dev_warn(&pf
->pdev
->dev
,
9696 "could not set up macaddr; err %d\n",
9700 case I40E_VSI_VMDQ2
:
9702 ret
= i40e_config_netdev(vsi
);
9705 ret
= register_netdev(vsi
->netdev
);
9708 vsi
->netdev_registered
= true;
9709 netif_carrier_off(vsi
->netdev
);
9710 #ifdef CONFIG_I40E_DCB
9711 /* Setup DCB netlink interface */
9712 i40e_dcbnl_setup(vsi
);
9713 #endif /* CONFIG_I40E_DCB */
9717 /* set up vectors and rings if needed */
9718 ret
= i40e_vsi_setup_vectors(vsi
);
9722 ret
= i40e_alloc_rings(vsi
);
9726 /* map all of the rings to the q_vectors */
9727 i40e_vsi_map_rings_to_vectors(vsi
);
9729 i40e_vsi_reset_stats(vsi
);
9733 /* no netdev or rings for the other VSI types */
9737 if ((pf
->flags
& I40E_FLAG_RSS_AQ_CAPABLE
) &&
9738 (vsi
->type
== I40E_VSI_VMDQ2
)) {
9739 ret
= i40e_vsi_config_rss(vsi
);
9744 i40e_vsi_free_q_vectors(vsi
);
9746 if (vsi
->netdev_registered
) {
9747 vsi
->netdev_registered
= false;
9748 unregister_netdev(vsi
->netdev
);
9749 free_netdev(vsi
->netdev
);
9753 i40e_aq_delete_element(&pf
->hw
, vsi
->seid
, NULL
);
9755 i40e_vsi_clear(vsi
);
9761 * i40e_veb_get_bw_info - Query VEB BW information
9762 * @veb: the veb to query
9764 * Query the Tx scheduler BW configuration data for given VEB
9766 static int i40e_veb_get_bw_info(struct i40e_veb
*veb
)
9768 struct i40e_aqc_query_switching_comp_ets_config_resp ets_data
;
9769 struct i40e_aqc_query_switching_comp_bw_config_resp bw_data
;
9770 struct i40e_pf
*pf
= veb
->pf
;
9771 struct i40e_hw
*hw
= &pf
->hw
;
9776 ret
= i40e_aq_query_switch_comp_bw_config(hw
, veb
->seid
,
9779 dev_info(&pf
->pdev
->dev
,
9780 "query veb bw config failed, err %s aq_err %s\n",
9781 i40e_stat_str(&pf
->hw
, ret
),
9782 i40e_aq_str(&pf
->hw
, hw
->aq
.asq_last_status
));
9786 ret
= i40e_aq_query_switch_comp_ets_config(hw
, veb
->seid
,
9789 dev_info(&pf
->pdev
->dev
,
9790 "query veb bw ets config failed, err %s aq_err %s\n",
9791 i40e_stat_str(&pf
->hw
, ret
),
9792 i40e_aq_str(&pf
->hw
, hw
->aq
.asq_last_status
));
9796 veb
->bw_limit
= le16_to_cpu(ets_data
.port_bw_limit
);
9797 veb
->bw_max_quanta
= ets_data
.tc_bw_max
;
9798 veb
->is_abs_credits
= bw_data
.absolute_credits_enable
;
9799 veb
->enabled_tc
= ets_data
.tc_valid_bits
;
9800 tc_bw_max
= le16_to_cpu(bw_data
.tc_bw_max
[0]) |
9801 (le16_to_cpu(bw_data
.tc_bw_max
[1]) << 16);
9802 for (i
= 0; i
< I40E_MAX_TRAFFIC_CLASS
; i
++) {
9803 veb
->bw_tc_share_credits
[i
] = bw_data
.tc_bw_share_credits
[i
];
9804 veb
->bw_tc_limit_credits
[i
] =
9805 le16_to_cpu(bw_data
.tc_bw_limits
[i
]);
9806 veb
->bw_tc_max_quanta
[i
] = ((tc_bw_max
>> (i
*4)) & 0x7);
9814 * i40e_veb_mem_alloc - Allocates the next available struct veb in the PF
9815 * @pf: board private structure
9817 * On error: returns error code (negative)
9818 * On success: returns vsi index in PF (positive)
9820 static int i40e_veb_mem_alloc(struct i40e_pf
*pf
)
9823 struct i40e_veb
*veb
;
9826 /* Need to protect the allocation of switch elements at the PF level */
9827 mutex_lock(&pf
->switch_mutex
);
9829 /* VEB list may be fragmented if VEB creation/destruction has
9830 * been happening. We can afford to do a quick scan to look
9831 * for any free slots in the list.
9833 * find next empty veb slot, looping back around if necessary
9836 while ((i
< I40E_MAX_VEB
) && (pf
->veb
[i
] != NULL
))
9838 if (i
>= I40E_MAX_VEB
) {
9840 goto err_alloc_veb
; /* out of VEB slots! */
9843 veb
= kzalloc(sizeof(*veb
), GFP_KERNEL
);
9850 veb
->enabled_tc
= 1;
9855 mutex_unlock(&pf
->switch_mutex
);
9860 * i40e_switch_branch_release - Delete a branch of the switch tree
9861 * @branch: where to start deleting
9863 * This uses recursion to find the tips of the branch to be
9864 * removed, deleting until we get back to and can delete this VEB.
9866 static void i40e_switch_branch_release(struct i40e_veb
*branch
)
9868 struct i40e_pf
*pf
= branch
->pf
;
9869 u16 branch_seid
= branch
->seid
;
9870 u16 veb_idx
= branch
->idx
;
9873 /* release any VEBs on this VEB - RECURSION */
9874 for (i
= 0; i
< I40E_MAX_VEB
; i
++) {
9877 if (pf
->veb
[i
]->uplink_seid
== branch
->seid
)
9878 i40e_switch_branch_release(pf
->veb
[i
]);
9881 /* Release the VSIs on this VEB, but not the owner VSI.
9883 * NOTE: Removing the last VSI on a VEB has the SIDE EFFECT of removing
9884 * the VEB itself, so don't use (*branch) after this loop.
9886 for (i
= 0; i
< pf
->num_alloc_vsi
; i
++) {
9889 if (pf
->vsi
[i
]->uplink_seid
== branch_seid
&&
9890 (pf
->vsi
[i
]->flags
& I40E_VSI_FLAG_VEB_OWNER
) == 0) {
9891 i40e_vsi_release(pf
->vsi
[i
]);
9895 /* There's one corner case where the VEB might not have been
9896 * removed, so double check it here and remove it if needed.
9897 * This case happens if the veb was created from the debugfs
9898 * commands and no VSIs were added to it.
9900 if (pf
->veb
[veb_idx
])
9901 i40e_veb_release(pf
->veb
[veb_idx
]);
9905 * i40e_veb_clear - remove veb struct
9906 * @veb: the veb to remove
9908 static void i40e_veb_clear(struct i40e_veb
*veb
)
9914 struct i40e_pf
*pf
= veb
->pf
;
9916 mutex_lock(&pf
->switch_mutex
);
9917 if (pf
->veb
[veb
->idx
] == veb
)
9918 pf
->veb
[veb
->idx
] = NULL
;
9919 mutex_unlock(&pf
->switch_mutex
);
9926 * i40e_veb_release - Delete a VEB and free its resources
9927 * @veb: the VEB being removed
9929 void i40e_veb_release(struct i40e_veb
*veb
)
9931 struct i40e_vsi
*vsi
= NULL
;
9937 /* find the remaining VSI and check for extras */
9938 for (i
= 0; i
< pf
->num_alloc_vsi
; i
++) {
9939 if (pf
->vsi
[i
] && pf
->vsi
[i
]->uplink_seid
== veb
->seid
) {
9945 dev_info(&pf
->pdev
->dev
,
9946 "can't remove VEB %d with %d VSIs left\n",
9951 /* move the remaining VSI to uplink veb */
9952 vsi
->flags
&= ~I40E_VSI_FLAG_VEB_OWNER
;
9953 if (veb
->uplink_seid
) {
9954 vsi
->uplink_seid
= veb
->uplink_seid
;
9955 if (veb
->uplink_seid
== pf
->mac_seid
)
9956 vsi
->veb_idx
= I40E_NO_VEB
;
9958 vsi
->veb_idx
= veb
->veb_idx
;
9961 vsi
->uplink_seid
= pf
->vsi
[pf
->lan_vsi
]->uplink_seid
;
9962 vsi
->veb_idx
= pf
->vsi
[pf
->lan_vsi
]->veb_idx
;
9965 i40e_aq_delete_element(&pf
->hw
, veb
->seid
, NULL
);
9966 i40e_veb_clear(veb
);
9970 * i40e_add_veb - create the VEB in the switch
9971 * @veb: the VEB to be instantiated
9972 * @vsi: the controlling VSI
9974 static int i40e_add_veb(struct i40e_veb
*veb
, struct i40e_vsi
*vsi
)
9976 struct i40e_pf
*pf
= veb
->pf
;
9977 bool is_default
= veb
->pf
->cur_promisc
;
9978 bool is_cloud
= false;
9981 /* get a VEB from the hardware */
9982 ret
= i40e_aq_add_veb(&pf
->hw
, veb
->uplink_seid
, vsi
->seid
,
9983 veb
->enabled_tc
, is_default
,
9984 is_cloud
, &veb
->seid
, NULL
);
9986 dev_info(&pf
->pdev
->dev
,
9987 "couldn't add VEB, err %s aq_err %s\n",
9988 i40e_stat_str(&pf
->hw
, ret
),
9989 i40e_aq_str(&pf
->hw
, pf
->hw
.aq
.asq_last_status
));
9993 /* get statistics counter */
9994 ret
= i40e_aq_get_veb_parameters(&pf
->hw
, veb
->seid
, NULL
, NULL
,
9995 &veb
->stats_idx
, NULL
, NULL
, NULL
);
9997 dev_info(&pf
->pdev
->dev
,
9998 "couldn't get VEB statistics idx, err %s aq_err %s\n",
9999 i40e_stat_str(&pf
->hw
, ret
),
10000 i40e_aq_str(&pf
->hw
, pf
->hw
.aq
.asq_last_status
));
10003 ret
= i40e_veb_get_bw_info(veb
);
10005 dev_info(&pf
->pdev
->dev
,
10006 "couldn't get VEB bw info, err %s aq_err %s\n",
10007 i40e_stat_str(&pf
->hw
, ret
),
10008 i40e_aq_str(&pf
->hw
, pf
->hw
.aq
.asq_last_status
));
10009 i40e_aq_delete_element(&pf
->hw
, veb
->seid
, NULL
);
10013 vsi
->uplink_seid
= veb
->seid
;
10014 vsi
->veb_idx
= veb
->idx
;
10015 vsi
->flags
|= I40E_VSI_FLAG_VEB_OWNER
;
10021 * i40e_veb_setup - Set up a VEB
10022 * @pf: board private structure
10023 * @flags: VEB setup flags
10024 * @uplink_seid: the switch element to link to
10025 * @vsi_seid: the initial VSI seid
10026 * @enabled_tc: Enabled TC bit-map
10028 * This allocates the sw VEB structure and links it into the switch
10029 * It is possible and legal for this to be a duplicate of an already
10030 * existing VEB. It is also possible for both uplink and vsi seids
10031 * to be zero, in order to create a floating VEB.
10033 * Returns pointer to the successfully allocated VEB sw struct on
10034 * success, otherwise returns NULL on failure.
10036 struct i40e_veb
*i40e_veb_setup(struct i40e_pf
*pf
, u16 flags
,
10037 u16 uplink_seid
, u16 vsi_seid
,
10040 struct i40e_veb
*veb
, *uplink_veb
= NULL
;
10041 int vsi_idx
, veb_idx
;
10044 /* if one seid is 0, the other must be 0 to create a floating relay */
10045 if ((uplink_seid
== 0 || vsi_seid
== 0) &&
10046 (uplink_seid
+ vsi_seid
!= 0)) {
10047 dev_info(&pf
->pdev
->dev
,
10048 "one, not both seid's are 0: uplink=%d vsi=%d\n",
10049 uplink_seid
, vsi_seid
);
10053 /* make sure there is such a vsi and uplink */
10054 for (vsi_idx
= 0; vsi_idx
< pf
->num_alloc_vsi
; vsi_idx
++)
10055 if (pf
->vsi
[vsi_idx
] && pf
->vsi
[vsi_idx
]->seid
== vsi_seid
)
10057 if (vsi_idx
>= pf
->num_alloc_vsi
&& vsi_seid
!= 0) {
10058 dev_info(&pf
->pdev
->dev
, "vsi seid %d not found\n",
10063 if (uplink_seid
&& uplink_seid
!= pf
->mac_seid
) {
10064 for (veb_idx
= 0; veb_idx
< I40E_MAX_VEB
; veb_idx
++) {
10065 if (pf
->veb
[veb_idx
] &&
10066 pf
->veb
[veb_idx
]->seid
== uplink_seid
) {
10067 uplink_veb
= pf
->veb
[veb_idx
];
10072 dev_info(&pf
->pdev
->dev
,
10073 "uplink seid %d not found\n", uplink_seid
);
10078 /* get veb sw struct */
10079 veb_idx
= i40e_veb_mem_alloc(pf
);
10082 veb
= pf
->veb
[veb_idx
];
10083 veb
->flags
= flags
;
10084 veb
->uplink_seid
= uplink_seid
;
10085 veb
->veb_idx
= (uplink_veb
? uplink_veb
->idx
: I40E_NO_VEB
);
10086 veb
->enabled_tc
= (enabled_tc
? enabled_tc
: 0x1);
10088 /* create the VEB in the switch */
10089 ret
= i40e_add_veb(veb
, pf
->vsi
[vsi_idx
]);
10092 if (vsi_idx
== pf
->lan_vsi
)
10093 pf
->lan_veb
= veb
->idx
;
10098 i40e_veb_clear(veb
);
10104 * i40e_setup_pf_switch_element - set PF vars based on switch type
10105 * @pf: board private structure
10106 * @ele: element we are building info from
10107 * @num_reported: total number of elements
10108 * @printconfig: should we print the contents
10110 * helper function to assist in extracting a few useful SEID values.
10112 static void i40e_setup_pf_switch_element(struct i40e_pf
*pf
,
10113 struct i40e_aqc_switch_config_element_resp
*ele
,
10114 u16 num_reported
, bool printconfig
)
10116 u16 downlink_seid
= le16_to_cpu(ele
->downlink_seid
);
10117 u16 uplink_seid
= le16_to_cpu(ele
->uplink_seid
);
10118 u8 element_type
= ele
->element_type
;
10119 u16 seid
= le16_to_cpu(ele
->seid
);
10122 dev_info(&pf
->pdev
->dev
,
10123 "type=%d seid=%d uplink=%d downlink=%d\n",
10124 element_type
, seid
, uplink_seid
, downlink_seid
);
10126 switch (element_type
) {
10127 case I40E_SWITCH_ELEMENT_TYPE_MAC
:
10128 pf
->mac_seid
= seid
;
10130 case I40E_SWITCH_ELEMENT_TYPE_VEB
:
10132 if (uplink_seid
!= pf
->mac_seid
)
10134 if (pf
->lan_veb
== I40E_NO_VEB
) {
10137 /* find existing or else empty VEB */
10138 for (v
= 0; v
< I40E_MAX_VEB
; v
++) {
10139 if (pf
->veb
[v
] && (pf
->veb
[v
]->seid
== seid
)) {
10144 if (pf
->lan_veb
== I40E_NO_VEB
) {
10145 v
= i40e_veb_mem_alloc(pf
);
10152 pf
->veb
[pf
->lan_veb
]->seid
= seid
;
10153 pf
->veb
[pf
->lan_veb
]->uplink_seid
= pf
->mac_seid
;
10154 pf
->veb
[pf
->lan_veb
]->pf
= pf
;
10155 pf
->veb
[pf
->lan_veb
]->veb_idx
= I40E_NO_VEB
;
10157 case I40E_SWITCH_ELEMENT_TYPE_VSI
:
10158 if (num_reported
!= 1)
10160 /* This is immediately after a reset so we can assume this is
10163 pf
->mac_seid
= uplink_seid
;
10164 pf
->pf_seid
= downlink_seid
;
10165 pf
->main_vsi_seid
= seid
;
10167 dev_info(&pf
->pdev
->dev
,
10168 "pf_seid=%d main_vsi_seid=%d\n",
10169 pf
->pf_seid
, pf
->main_vsi_seid
);
10171 case I40E_SWITCH_ELEMENT_TYPE_PF
:
10172 case I40E_SWITCH_ELEMENT_TYPE_VF
:
10173 case I40E_SWITCH_ELEMENT_TYPE_EMP
:
10174 case I40E_SWITCH_ELEMENT_TYPE_BMC
:
10175 case I40E_SWITCH_ELEMENT_TYPE_PE
:
10176 case I40E_SWITCH_ELEMENT_TYPE_PA
:
10177 /* ignore these for now */
10180 dev_info(&pf
->pdev
->dev
, "unknown element type=%d seid=%d\n",
10181 element_type
, seid
);
10187 * i40e_fetch_switch_configuration - Get switch config from firmware
10188 * @pf: board private structure
10189 * @printconfig: should we print the contents
10191 * Get the current switch configuration from the device and
10192 * extract a few useful SEID values.
10194 int i40e_fetch_switch_configuration(struct i40e_pf
*pf
, bool printconfig
)
10196 struct i40e_aqc_get_switch_config_resp
*sw_config
;
10202 aq_buf
= kzalloc(I40E_AQ_LARGE_BUF
, GFP_KERNEL
);
10206 sw_config
= (struct i40e_aqc_get_switch_config_resp
*)aq_buf
;
10208 u16 num_reported
, num_total
;
10210 ret
= i40e_aq_get_switch_config(&pf
->hw
, sw_config
,
10214 dev_info(&pf
->pdev
->dev
,
10215 "get switch config failed err %s aq_err %s\n",
10216 i40e_stat_str(&pf
->hw
, ret
),
10217 i40e_aq_str(&pf
->hw
,
10218 pf
->hw
.aq
.asq_last_status
));
10223 num_reported
= le16_to_cpu(sw_config
->header
.num_reported
);
10224 num_total
= le16_to_cpu(sw_config
->header
.num_total
);
10227 dev_info(&pf
->pdev
->dev
,
10228 "header: %d reported %d total\n",
10229 num_reported
, num_total
);
10231 for (i
= 0; i
< num_reported
; i
++) {
10232 struct i40e_aqc_switch_config_element_resp
*ele
=
10233 &sw_config
->element
[i
];
10235 i40e_setup_pf_switch_element(pf
, ele
, num_reported
,
10238 } while (next_seid
!= 0);
10245 * i40e_setup_pf_switch - Setup the HW switch on startup or after reset
10246 * @pf: board private structure
10247 * @reinit: if the Main VSI needs to re-initialized.
10249 * Returns 0 on success, negative value on failure
10251 static int i40e_setup_pf_switch(struct i40e_pf
*pf
, bool reinit
)
10255 /* find out what's out there already */
10256 ret
= i40e_fetch_switch_configuration(pf
, false);
10258 dev_info(&pf
->pdev
->dev
,
10259 "couldn't fetch switch config, err %s aq_err %s\n",
10260 i40e_stat_str(&pf
->hw
, ret
),
10261 i40e_aq_str(&pf
->hw
, pf
->hw
.aq
.asq_last_status
));
10264 i40e_pf_reset_stats(pf
);
10266 /* first time setup */
10267 if (pf
->lan_vsi
== I40E_NO_VSI
|| reinit
) {
10268 struct i40e_vsi
*vsi
= NULL
;
10271 /* Set up the PF VSI associated with the PF's main VSI
10272 * that is already in the HW switch
10274 if (pf
->lan_veb
!= I40E_NO_VEB
&& pf
->veb
[pf
->lan_veb
])
10275 uplink_seid
= pf
->veb
[pf
->lan_veb
]->seid
;
10277 uplink_seid
= pf
->mac_seid
;
10278 if (pf
->lan_vsi
== I40E_NO_VSI
)
10279 vsi
= i40e_vsi_setup(pf
, I40E_VSI_MAIN
, uplink_seid
, 0);
10281 vsi
= i40e_vsi_reinit_setup(pf
->vsi
[pf
->lan_vsi
]);
10283 dev_info(&pf
->pdev
->dev
, "setup of MAIN VSI failed\n");
10284 i40e_fdir_teardown(pf
);
10288 /* force a reset of TC and queue layout configurations */
10289 u8 enabled_tc
= pf
->vsi
[pf
->lan_vsi
]->tc_config
.enabled_tc
;
10291 pf
->vsi
[pf
->lan_vsi
]->tc_config
.enabled_tc
= 0;
10292 pf
->vsi
[pf
->lan_vsi
]->seid
= pf
->main_vsi_seid
;
10293 i40e_vsi_config_tc(pf
->vsi
[pf
->lan_vsi
], enabled_tc
);
10295 i40e_vlan_stripping_disable(pf
->vsi
[pf
->lan_vsi
]);
10297 i40e_fdir_sb_setup(pf
);
10299 /* Setup static PF queue filter control settings */
10300 ret
= i40e_setup_pf_filter_control(pf
);
10302 dev_info(&pf
->pdev
->dev
, "setup_pf_filter_control failed: %d\n",
10304 /* Failure here should not stop continuing other steps */
10307 /* enable RSS in the HW, even for only one queue, as the stack can use
10310 if ((pf
->flags
& I40E_FLAG_RSS_ENABLED
))
10311 i40e_pf_config_rss(pf
);
10313 /* fill in link information and enable LSE reporting */
10314 i40e_update_link_info(&pf
->hw
);
10315 i40e_link_event(pf
);
10317 /* Initialize user-specific link properties */
10318 pf
->fc_autoneg_status
= ((pf
->hw
.phy
.link_info
.an_info
&
10319 I40E_AQ_AN_COMPLETED
) ? true : false);
10327 * i40e_determine_queue_usage - Work out queue distribution
10328 * @pf: board private structure
10330 static void i40e_determine_queue_usage(struct i40e_pf
*pf
)
10334 pf
->num_lan_qps
= 0;
10336 pf
->num_fcoe_qps
= 0;
10339 /* Find the max queues to be put into basic use. We'll always be
10340 * using TC0, whether or not DCB is running, and TC0 will get the
10343 queues_left
= pf
->hw
.func_caps
.num_tx_qp
;
10345 if ((queues_left
== 1) ||
10346 !(pf
->flags
& I40E_FLAG_MSIX_ENABLED
)) {
10347 /* one qp for PF, no queues for anything else */
10349 pf
->alloc_rss_size
= pf
->num_lan_qps
= 1;
10351 /* make sure all the fancies are disabled */
10352 pf
->flags
&= ~(I40E_FLAG_RSS_ENABLED
|
10354 I40E_FLAG_FCOE_ENABLED
|
10356 I40E_FLAG_FD_SB_ENABLED
|
10357 I40E_FLAG_FD_ATR_ENABLED
|
10358 I40E_FLAG_DCB_CAPABLE
|
10359 I40E_FLAG_SRIOV_ENABLED
|
10360 I40E_FLAG_VMDQ_ENABLED
);
10361 } else if (!(pf
->flags
& (I40E_FLAG_RSS_ENABLED
|
10362 I40E_FLAG_FD_SB_ENABLED
|
10363 I40E_FLAG_FD_ATR_ENABLED
|
10364 I40E_FLAG_DCB_CAPABLE
))) {
10365 /* one qp for PF */
10366 pf
->alloc_rss_size
= pf
->num_lan_qps
= 1;
10367 queues_left
-= pf
->num_lan_qps
;
10369 pf
->flags
&= ~(I40E_FLAG_RSS_ENABLED
|
10371 I40E_FLAG_FCOE_ENABLED
|
10373 I40E_FLAG_FD_SB_ENABLED
|
10374 I40E_FLAG_FD_ATR_ENABLED
|
10375 I40E_FLAG_DCB_ENABLED
|
10376 I40E_FLAG_VMDQ_ENABLED
);
10378 /* Not enough queues for all TCs */
10379 if ((pf
->flags
& I40E_FLAG_DCB_CAPABLE
) &&
10380 (queues_left
< I40E_MAX_TRAFFIC_CLASS
)) {
10381 pf
->flags
&= ~I40E_FLAG_DCB_CAPABLE
;
10382 dev_info(&pf
->pdev
->dev
, "not enough queues for DCB. DCB is disabled.\n");
10384 pf
->num_lan_qps
= max_t(int, pf
->rss_size_max
,
10385 num_online_cpus());
10386 pf
->num_lan_qps
= min_t(int, pf
->num_lan_qps
,
10387 pf
->hw
.func_caps
.num_tx_qp
);
10389 queues_left
-= pf
->num_lan_qps
;
10393 if (pf
->flags
& I40E_FLAG_FCOE_ENABLED
) {
10394 if (I40E_DEFAULT_FCOE
<= queues_left
) {
10395 pf
->num_fcoe_qps
= I40E_DEFAULT_FCOE
;
10396 } else if (I40E_MINIMUM_FCOE
<= queues_left
) {
10397 pf
->num_fcoe_qps
= I40E_MINIMUM_FCOE
;
10399 pf
->num_fcoe_qps
= 0;
10400 pf
->flags
&= ~I40E_FLAG_FCOE_ENABLED
;
10401 dev_info(&pf
->pdev
->dev
, "not enough queues for FCoE. FCoE feature will be disabled\n");
10404 queues_left
-= pf
->num_fcoe_qps
;
10408 if (pf
->flags
& I40E_FLAG_FD_SB_ENABLED
) {
10409 if (queues_left
> 1) {
10410 queues_left
-= 1; /* save 1 queue for FD */
10412 pf
->flags
&= ~I40E_FLAG_FD_SB_ENABLED
;
10413 dev_info(&pf
->pdev
->dev
, "not enough queues for Flow Director. Flow Director feature is disabled\n");
10417 if ((pf
->flags
& I40E_FLAG_SRIOV_ENABLED
) &&
10418 pf
->num_vf_qps
&& pf
->num_req_vfs
&& queues_left
) {
10419 pf
->num_req_vfs
= min_t(int, pf
->num_req_vfs
,
10420 (queues_left
/ pf
->num_vf_qps
));
10421 queues_left
-= (pf
->num_req_vfs
* pf
->num_vf_qps
);
10424 if ((pf
->flags
& I40E_FLAG_VMDQ_ENABLED
) &&
10425 pf
->num_vmdq_vsis
&& pf
->num_vmdq_qps
&& queues_left
) {
10426 pf
->num_vmdq_vsis
= min_t(int, pf
->num_vmdq_vsis
,
10427 (queues_left
/ pf
->num_vmdq_qps
));
10428 queues_left
-= (pf
->num_vmdq_vsis
* pf
->num_vmdq_qps
);
10431 pf
->queues_left
= queues_left
;
10432 dev_dbg(&pf
->pdev
->dev
,
10433 "qs_avail=%d FD SB=%d lan_qs=%d lan_tc0=%d vf=%d*%d vmdq=%d*%d, remaining=%d\n",
10434 pf
->hw
.func_caps
.num_tx_qp
,
10435 !!(pf
->flags
& I40E_FLAG_FD_SB_ENABLED
),
10436 pf
->num_lan_qps
, pf
->alloc_rss_size
, pf
->num_req_vfs
,
10437 pf
->num_vf_qps
, pf
->num_vmdq_vsis
, pf
->num_vmdq_qps
,
10440 dev_dbg(&pf
->pdev
->dev
, "fcoe queues = %d\n", pf
->num_fcoe_qps
);
10445 * i40e_setup_pf_filter_control - Setup PF static filter control
10446 * @pf: PF to be setup
10448 * i40e_setup_pf_filter_control sets up a PF's initial filter control
10449 * settings. If PE/FCoE are enabled then it will also set the per PF
10450 * based filter sizes required for them. It also enables Flow director,
10451 * ethertype and macvlan type filter settings for the pf.
10453 * Returns 0 on success, negative on failure
10455 static int i40e_setup_pf_filter_control(struct i40e_pf
*pf
)
10457 struct i40e_filter_control_settings
*settings
= &pf
->filter_settings
;
10459 settings
->hash_lut_size
= I40E_HASH_LUT_SIZE_128
;
10461 /* Flow Director is enabled */
10462 if (pf
->flags
& (I40E_FLAG_FD_SB_ENABLED
| I40E_FLAG_FD_ATR_ENABLED
))
10463 settings
->enable_fdir
= true;
10465 /* Ethtype and MACVLAN filters enabled for PF */
10466 settings
->enable_ethtype
= true;
10467 settings
->enable_macvlan
= true;
10469 if (i40e_set_filter_control(&pf
->hw
, settings
))
10475 #define INFO_STRING_LEN 255
10476 #define REMAIN(__x) (INFO_STRING_LEN - (__x))
10477 static void i40e_print_features(struct i40e_pf
*pf
)
10479 struct i40e_hw
*hw
= &pf
->hw
;
10483 buf
= kmalloc(INFO_STRING_LEN
, GFP_KERNEL
);
10487 i
= snprintf(buf
, INFO_STRING_LEN
, "Features: PF-id[%d]", hw
->pf_id
);
10488 #ifdef CONFIG_PCI_IOV
10489 i
+= snprintf(&buf
[i
], REMAIN(i
), " VFs: %d", pf
->num_req_vfs
);
10491 i
+= snprintf(&buf
[i
], REMAIN(i
), " VSIs: %d QP: %d RX: %s",
10492 pf
->hw
.func_caps
.num_vsis
,
10493 pf
->vsi
[pf
->lan_vsi
]->num_queue_pairs
,
10494 pf
->flags
& I40E_FLAG_RX_PS_ENABLED
? "PS" : "1BUF");
10496 if (pf
->flags
& I40E_FLAG_RSS_ENABLED
)
10497 i
+= snprintf(&buf
[i
], REMAIN(i
), " RSS");
10498 if (pf
->flags
& I40E_FLAG_FD_ATR_ENABLED
)
10499 i
+= snprintf(&buf
[i
], REMAIN(i
), " FD_ATR");
10500 if (pf
->flags
& I40E_FLAG_FD_SB_ENABLED
) {
10501 i
+= snprintf(&buf
[i
], REMAIN(i
), " FD_SB");
10502 i
+= snprintf(&buf
[i
], REMAIN(i
), " NTUPLE");
10504 if (pf
->flags
& I40E_FLAG_DCB_CAPABLE
)
10505 i
+= snprintf(&buf
[i
], REMAIN(i
), " DCB");
10506 #if IS_ENABLED(CONFIG_VXLAN)
10507 i
+= snprintf(&buf
[i
], REMAIN(i
), " VxLAN");
10509 #if IS_ENABLED(CONFIG_GENEVE)
10510 i
+= snprintf(&buf
[i
], REMAIN(i
), " Geneve");
10512 if (pf
->flags
& I40E_FLAG_PTP
)
10513 i
+= snprintf(&buf
[i
], REMAIN(i
), " PTP");
10515 if (pf
->flags
& I40E_FLAG_FCOE_ENABLED
)
10516 i
+= snprintf(&buf
[i
], REMAIN(i
), " FCOE");
10518 if (pf
->flags
& I40E_FLAG_VEB_MODE_ENABLED
)
10519 i
+= snprintf(&buf
[i
], REMAIN(i
), " VEB");
10521 i
+= snprintf(&buf
[i
], REMAIN(i
), " VEPA");
10523 dev_info(&pf
->pdev
->dev
, "%s\n", buf
);
10525 WARN_ON(i
> INFO_STRING_LEN
);
10529 * i40e_get_platform_mac_addr - get platform-specific MAC address
10531 * @pdev: PCI device information struct
10532 * @pf: board private structure
10534 * Look up the MAC address in Open Firmware on systems that support it,
10535 * and use IDPROM on SPARC if no OF address is found. On return, the
10536 * I40E_FLAG_PF_MAC will be wset in pf->flags if a platform-specific value
10537 * has been selected.
10539 static void i40e_get_platform_mac_addr(struct pci_dev
*pdev
, struct i40e_pf
*pf
)
10541 struct device_node
*dp
= pci_device_to_OF_node(pdev
);
10542 const unsigned char *addr
;
10543 u8
*mac_addr
= pf
->hw
.mac
.addr
;
10545 pf
->flags
&= ~I40E_FLAG_PF_MAC
;
10546 addr
= of_get_mac_address(dp
);
10548 ether_addr_copy(mac_addr
, addr
);
10549 pf
->flags
|= I40E_FLAG_PF_MAC
;
10550 #ifdef CONFIG_SPARC
10552 ether_addr_copy(mac_addr
, idprom
->id_ethaddr
);
10553 pf
->flags
|= I40E_FLAG_PF_MAC
;
10554 #endif /* CONFIG_SPARC */
10559 * i40e_probe - Device initialization routine
10560 * @pdev: PCI device information struct
10561 * @ent: entry in i40e_pci_tbl
10563 * i40e_probe initializes a PF identified by a pci_dev structure.
10564 * The OS initialization, configuring of the PF private structure,
10565 * and a hardware reset occur.
10567 * Returns 0 on success, negative on failure
10569 static int i40e_probe(struct pci_dev
*pdev
, const struct pci_device_id
*ent
)
10571 struct i40e_aq_get_phy_abilities_resp abilities
;
10572 struct i40e_pf
*pf
;
10573 struct i40e_hw
*hw
;
10574 static u16 pfs_found
;
10583 err
= pci_enable_device_mem(pdev
);
10587 /* set up for high or low dma */
10588 err
= dma_set_mask_and_coherent(&pdev
->dev
, DMA_BIT_MASK(64));
10590 err
= dma_set_mask_and_coherent(&pdev
->dev
, DMA_BIT_MASK(32));
10592 dev_err(&pdev
->dev
,
10593 "DMA configuration failed: 0x%x\n", err
);
10598 /* set up pci connections */
10599 err
= pci_request_selected_regions(pdev
, pci_select_bars(pdev
,
10600 IORESOURCE_MEM
), i40e_driver_name
);
10602 dev_info(&pdev
->dev
,
10603 "pci_request_selected_regions failed %d\n", err
);
10607 pci_enable_pcie_error_reporting(pdev
);
10608 pci_set_master(pdev
);
10610 /* Now that we have a PCI connection, we need to do the
10611 * low level device setup. This is primarily setting up
10612 * the Admin Queue structures and then querying for the
10613 * device's current profile information.
10615 pf
= kzalloc(sizeof(*pf
), GFP_KERNEL
);
10622 set_bit(__I40E_DOWN
, &pf
->state
);
10627 pf
->ioremap_len
= min_t(int, pci_resource_len(pdev
, 0),
10628 I40E_MAX_CSR_SPACE
);
10630 hw
->hw_addr
= ioremap(pci_resource_start(pdev
, 0), pf
->ioremap_len
);
10631 if (!hw
->hw_addr
) {
10633 dev_info(&pdev
->dev
, "ioremap(0x%04x, 0x%04x) failed: 0x%x\n",
10634 (unsigned int)pci_resource_start(pdev
, 0),
10635 pf
->ioremap_len
, err
);
10638 hw
->vendor_id
= pdev
->vendor
;
10639 hw
->device_id
= pdev
->device
;
10640 pci_read_config_byte(pdev
, PCI_REVISION_ID
, &hw
->revision_id
);
10641 hw
->subsystem_vendor_id
= pdev
->subsystem_vendor
;
10642 hw
->subsystem_device_id
= pdev
->subsystem_device
;
10643 hw
->bus
.device
= PCI_SLOT(pdev
->devfn
);
10644 hw
->bus
.func
= PCI_FUNC(pdev
->devfn
);
10645 pf
->instance
= pfs_found
;
10648 pf
->msg_enable
= pf
->hw
.debug_mask
;
10649 pf
->msg_enable
= debug
;
10652 /* do a special CORER for clearing PXE mode once at init */
10653 if (hw
->revision_id
== 0 &&
10654 (rd32(hw
, I40E_GLLAN_RCTL_0
) & I40E_GLLAN_RCTL_0_PXE_MODE_MASK
)) {
10655 wr32(hw
, I40E_GLGEN_RTRIG
, I40E_GLGEN_RTRIG_CORER_MASK
);
10660 i40e_clear_pxe_mode(hw
);
10663 /* Reset here to make sure all is clean and to define PF 'n' */
10665 err
= i40e_pf_reset(hw
);
10667 dev_info(&pdev
->dev
, "Initial pf_reset failed: %d\n", err
);
10672 hw
->aq
.num_arq_entries
= I40E_AQ_LEN
;
10673 hw
->aq
.num_asq_entries
= I40E_AQ_LEN
;
10674 hw
->aq
.arq_buf_size
= I40E_MAX_AQ_BUF_SIZE
;
10675 hw
->aq
.asq_buf_size
= I40E_MAX_AQ_BUF_SIZE
;
10676 pf
->adminq_work_limit
= I40E_AQ_WORK_LIMIT
;
10678 snprintf(pf
->int_name
, sizeof(pf
->int_name
) - 1,
10680 dev_driver_string(&pf
->pdev
->dev
), dev_name(&pdev
->dev
));
10682 err
= i40e_init_shared_code(hw
);
10684 dev_warn(&pdev
->dev
, "unidentified MAC or BLANK NVM: %d\n",
10689 /* set up a default setting for link flow control */
10690 pf
->hw
.fc
.requested_mode
= I40E_FC_NONE
;
10692 /* set up the locks for the AQ, do this only once in probe
10693 * and destroy them only once in remove
10695 mutex_init(&hw
->aq
.asq_mutex
);
10696 mutex_init(&hw
->aq
.arq_mutex
);
10698 err
= i40e_init_adminq(hw
);
10700 if (err
== I40E_ERR_FIRMWARE_API_VERSION
)
10701 dev_info(&pdev
->dev
,
10702 "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");
10704 dev_info(&pdev
->dev
,
10705 "The driver for the device stopped because the device firmware failed to init. Try updating your NVM image.\n");
10710 /* provide nvm, fw, api versions */
10711 dev_info(&pdev
->dev
, "fw %d.%d.%05d api %d.%d nvm %s\n",
10712 hw
->aq
.fw_maj_ver
, hw
->aq
.fw_min_ver
, hw
->aq
.fw_build
,
10713 hw
->aq
.api_maj_ver
, hw
->aq
.api_min_ver
,
10714 i40e_nvm_version_str(hw
));
10716 if (hw
->aq
.api_maj_ver
== I40E_FW_API_VERSION_MAJOR
&&
10717 hw
->aq
.api_min_ver
> I40E_FW_API_VERSION_MINOR
)
10718 dev_info(&pdev
->dev
,
10719 "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");
10720 else if (hw
->aq
.api_maj_ver
< I40E_FW_API_VERSION_MAJOR
||
10721 hw
->aq
.api_min_ver
< (I40E_FW_API_VERSION_MINOR
- 1))
10722 dev_info(&pdev
->dev
,
10723 "The driver for the device detected an older version of the NVM image than expected. Please update the NVM image.\n");
10725 i40e_verify_eeprom(pf
);
10727 /* Rev 0 hardware was never productized */
10728 if (hw
->revision_id
< 1)
10729 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");
10731 i40e_clear_pxe_mode(hw
);
10732 err
= i40e_get_capabilities(pf
);
10734 goto err_adminq_setup
;
10736 err
= i40e_sw_init(pf
);
10738 dev_info(&pdev
->dev
, "sw_init failed: %d\n", err
);
10742 err
= i40e_init_lan_hmc(hw
, hw
->func_caps
.num_tx_qp
,
10743 hw
->func_caps
.num_rx_qp
,
10744 pf
->fcoe_hmc_cntx_num
, pf
->fcoe_hmc_filt_num
);
10746 dev_info(&pdev
->dev
, "init_lan_hmc failed: %d\n", err
);
10747 goto err_init_lan_hmc
;
10750 err
= i40e_configure_lan_hmc(hw
, I40E_HMC_MODEL_DIRECT_ONLY
);
10752 dev_info(&pdev
->dev
, "configure_lan_hmc failed: %d\n", err
);
10754 goto err_configure_lan_hmc
;
10757 /* Disable LLDP for NICs that have firmware versions lower than v4.3.
10758 * Ignore error return codes because if it was already disabled via
10759 * hardware settings this will fail
10761 if (((pf
->hw
.aq
.fw_maj_ver
== 4) && (pf
->hw
.aq
.fw_min_ver
< 3)) ||
10762 (pf
->hw
.aq
.fw_maj_ver
< 4)) {
10763 dev_info(&pdev
->dev
, "Stopping firmware LLDP agent.\n");
10764 i40e_aq_stop_lldp(hw
, true, NULL
);
10767 i40e_get_mac_addr(hw
, hw
->mac
.addr
);
10768 /* allow a platform config to override the HW addr */
10769 i40e_get_platform_mac_addr(pdev
, pf
);
10770 if (!is_valid_ether_addr(hw
->mac
.addr
)) {
10771 dev_info(&pdev
->dev
, "invalid MAC address %pM\n", hw
->mac
.addr
);
10775 dev_info(&pdev
->dev
, "MAC address: %pM\n", hw
->mac
.addr
);
10776 ether_addr_copy(hw
->mac
.perm_addr
, hw
->mac
.addr
);
10777 i40e_get_port_mac_addr(hw
, hw
->mac
.port_addr
);
10778 if (is_valid_ether_addr(hw
->mac
.port_addr
))
10779 pf
->flags
|= I40E_FLAG_PORT_ID_VALID
;
10781 err
= i40e_get_san_mac_addr(hw
, hw
->mac
.san_addr
);
10783 dev_info(&pdev
->dev
,
10784 "(non-fatal) SAN MAC retrieval failed: %d\n", err
);
10785 if (!is_valid_ether_addr(hw
->mac
.san_addr
)) {
10786 dev_warn(&pdev
->dev
, "invalid SAN MAC address %pM, falling back to LAN MAC\n",
10788 ether_addr_copy(hw
->mac
.san_addr
, hw
->mac
.addr
);
10790 dev_info(&pf
->pdev
->dev
, "SAN MAC: %pM\n", hw
->mac
.san_addr
);
10791 #endif /* I40E_FCOE */
10793 pci_set_drvdata(pdev
, pf
);
10794 pci_save_state(pdev
);
10795 #ifdef CONFIG_I40E_DCB
10796 err
= i40e_init_pf_dcb(pf
);
10798 dev_info(&pdev
->dev
, "DCB init failed %d, disabled\n", err
);
10799 pf
->flags
&= ~I40E_FLAG_DCB_CAPABLE
;
10800 /* Continue without DCB enabled */
10802 #endif /* CONFIG_I40E_DCB */
10804 /* set up periodic task facility */
10805 setup_timer(&pf
->service_timer
, i40e_service_timer
, (unsigned long)pf
);
10806 pf
->service_timer_period
= HZ
;
10808 INIT_WORK(&pf
->service_task
, i40e_service_task
);
10809 clear_bit(__I40E_SERVICE_SCHED
, &pf
->state
);
10810 pf
->flags
|= I40E_FLAG_NEED_LINK_UPDATE
;
10812 /* NVM bit on means WoL disabled for the port */
10813 i40e_read_nvm_word(hw
, I40E_SR_NVM_WAKE_ON_LAN
, &wol_nvm_bits
);
10814 if (BIT (hw
->port
) & wol_nvm_bits
|| hw
->partition_id
!= 1)
10815 pf
->wol_en
= false;
10818 device_set_wakeup_enable(&pf
->pdev
->dev
, pf
->wol_en
);
10820 /* set up the main switch operations */
10821 i40e_determine_queue_usage(pf
);
10822 err
= i40e_init_interrupt_scheme(pf
);
10824 goto err_switch_setup
;
10826 /* The number of VSIs reported by the FW is the minimum guaranteed
10827 * to us; HW supports far more and we share the remaining pool with
10828 * the other PFs. We allocate space for more than the guarantee with
10829 * the understanding that we might not get them all later.
10831 if (pf
->hw
.func_caps
.num_vsis
< I40E_MIN_VSI_ALLOC
)
10832 pf
->num_alloc_vsi
= I40E_MIN_VSI_ALLOC
;
10834 pf
->num_alloc_vsi
= pf
->hw
.func_caps
.num_vsis
;
10836 /* Set up the *vsi struct and our local tracking of the MAIN PF vsi. */
10837 len
= sizeof(struct i40e_vsi
*) * pf
->num_alloc_vsi
;
10838 pf
->vsi
= kzalloc(len
, GFP_KERNEL
);
10841 goto err_switch_setup
;
10844 #ifdef CONFIG_PCI_IOV
10845 /* prep for VF support */
10846 if ((pf
->flags
& I40E_FLAG_SRIOV_ENABLED
) &&
10847 (pf
->flags
& I40E_FLAG_MSIX_ENABLED
) &&
10848 !test_bit(__I40E_BAD_EEPROM
, &pf
->state
)) {
10849 if (pci_num_vf(pdev
))
10850 pf
->flags
|= I40E_FLAG_VEB_MODE_ENABLED
;
10853 err
= i40e_setup_pf_switch(pf
, false);
10855 dev_info(&pdev
->dev
, "setup_pf_switch failed: %d\n", err
);
10859 /* Make sure flow control is set according to current settings */
10860 err
= i40e_set_fc(hw
, &set_fc_aq_fail
, true);
10861 if (set_fc_aq_fail
& I40E_SET_FC_AQ_FAIL_GET
)
10862 dev_dbg(&pf
->pdev
->dev
,
10863 "Set fc with err %s aq_err %s on get_phy_cap\n",
10864 i40e_stat_str(hw
, err
),
10865 i40e_aq_str(hw
, hw
->aq
.asq_last_status
));
10866 if (set_fc_aq_fail
& I40E_SET_FC_AQ_FAIL_SET
)
10867 dev_dbg(&pf
->pdev
->dev
,
10868 "Set fc with err %s aq_err %s on set_phy_config\n",
10869 i40e_stat_str(hw
, err
),
10870 i40e_aq_str(hw
, hw
->aq
.asq_last_status
));
10871 if (set_fc_aq_fail
& I40E_SET_FC_AQ_FAIL_UPDATE
)
10872 dev_dbg(&pf
->pdev
->dev
,
10873 "Set fc with err %s aq_err %s on get_link_info\n",
10874 i40e_stat_str(hw
, err
),
10875 i40e_aq_str(hw
, hw
->aq
.asq_last_status
));
10877 /* if FDIR VSI was set up, start it now */
10878 for (i
= 0; i
< pf
->num_alloc_vsi
; i
++) {
10879 if (pf
->vsi
[i
] && pf
->vsi
[i
]->type
== I40E_VSI_FDIR
) {
10880 i40e_vsi_open(pf
->vsi
[i
]);
10885 /* driver is only interested in link up/down and module qualification
10886 * reports from firmware
10888 err
= i40e_aq_set_phy_int_mask(&pf
->hw
,
10889 I40E_AQ_EVENT_LINK_UPDOWN
|
10890 I40E_AQ_EVENT_MODULE_QUAL_FAIL
, NULL
);
10892 dev_info(&pf
->pdev
->dev
, "set phy mask fail, err %s aq_err %s\n",
10893 i40e_stat_str(&pf
->hw
, err
),
10894 i40e_aq_str(&pf
->hw
, pf
->hw
.aq
.asq_last_status
));
10896 /* Reconfigure hardware for allowing smaller MSS in the case
10897 * of TSO, so that we avoid the MDD being fired and causing
10898 * a reset in the case of small MSS+TSO.
10900 val
= rd32(hw
, I40E_REG_MSS
);
10901 if ((val
& I40E_REG_MSS_MIN_MASK
) > I40E_64BYTE_MSS
) {
10902 val
&= ~I40E_REG_MSS_MIN_MASK
;
10903 val
|= I40E_64BYTE_MSS
;
10904 wr32(hw
, I40E_REG_MSS
, val
);
10907 if (((pf
->hw
.aq
.fw_maj_ver
== 4) && (pf
->hw
.aq
.fw_min_ver
< 33)) ||
10908 (pf
->hw
.aq
.fw_maj_ver
< 4)) {
10910 err
= i40e_aq_set_link_restart_an(&pf
->hw
, true, NULL
);
10912 dev_info(&pf
->pdev
->dev
, "link restart failed, err %s aq_err %s\n",
10913 i40e_stat_str(&pf
->hw
, err
),
10914 i40e_aq_str(&pf
->hw
,
10915 pf
->hw
.aq
.asq_last_status
));
10917 /* The main driver is (mostly) up and happy. We need to set this state
10918 * before setting up the misc vector or we get a race and the vector
10919 * ends up disabled forever.
10921 clear_bit(__I40E_DOWN
, &pf
->state
);
10923 /* In case of MSIX we are going to setup the misc vector right here
10924 * to handle admin queue events etc. In case of legacy and MSI
10925 * the misc functionality and queue processing is combined in
10926 * the same vector and that gets setup at open.
10928 if (pf
->flags
& I40E_FLAG_MSIX_ENABLED
) {
10929 err
= i40e_setup_misc_vector(pf
);
10931 dev_info(&pdev
->dev
,
10932 "setup of misc vector failed: %d\n", err
);
10937 #ifdef CONFIG_PCI_IOV
10938 /* prep for VF support */
10939 if ((pf
->flags
& I40E_FLAG_SRIOV_ENABLED
) &&
10940 (pf
->flags
& I40E_FLAG_MSIX_ENABLED
) &&
10941 !test_bit(__I40E_BAD_EEPROM
, &pf
->state
)) {
10944 /* disable link interrupts for VFs */
10945 val
= rd32(hw
, I40E_PFGEN_PORTMDIO_NUM
);
10946 val
&= ~I40E_PFGEN_PORTMDIO_NUM_VFLINK_STAT_ENA_MASK
;
10947 wr32(hw
, I40E_PFGEN_PORTMDIO_NUM
, val
);
10950 if (pci_num_vf(pdev
)) {
10951 dev_info(&pdev
->dev
,
10952 "Active VFs found, allocating resources.\n");
10953 err
= i40e_alloc_vfs(pf
, pci_num_vf(pdev
));
10955 dev_info(&pdev
->dev
,
10956 "Error %d allocating resources for existing VFs\n",
10960 #endif /* CONFIG_PCI_IOV */
10964 i40e_dbg_pf_init(pf
);
10966 /* tell the firmware that we're starting */
10967 i40e_send_version(pf
);
10969 /* since everything's happy, start the service_task timer */
10970 mod_timer(&pf
->service_timer
,
10971 round_jiffies(jiffies
+ pf
->service_timer_period
));
10974 /* create FCoE interface */
10975 i40e_fcoe_vsi_setup(pf
);
10978 #define PCI_SPEED_SIZE 8
10979 #define PCI_WIDTH_SIZE 8
10980 /* Devices on the IOSF bus do not have this information
10981 * and will report PCI Gen 1 x 1 by default so don't bother
10984 if (!(pf
->flags
& I40E_FLAG_NO_PCI_LINK_CHECK
)) {
10985 char speed
[PCI_SPEED_SIZE
] = "Unknown";
10986 char width
[PCI_WIDTH_SIZE
] = "Unknown";
10988 /* Get the negotiated link width and speed from PCI config
10991 pcie_capability_read_word(pf
->pdev
, PCI_EXP_LNKSTA
,
10994 i40e_set_pci_config_data(hw
, link_status
);
10996 switch (hw
->bus
.speed
) {
10997 case i40e_bus_speed_8000
:
10998 strncpy(speed
, "8.0", PCI_SPEED_SIZE
); break;
10999 case i40e_bus_speed_5000
:
11000 strncpy(speed
, "5.0", PCI_SPEED_SIZE
); break;
11001 case i40e_bus_speed_2500
:
11002 strncpy(speed
, "2.5", PCI_SPEED_SIZE
); break;
11006 switch (hw
->bus
.width
) {
11007 case i40e_bus_width_pcie_x8
:
11008 strncpy(width
, "8", PCI_WIDTH_SIZE
); break;
11009 case i40e_bus_width_pcie_x4
:
11010 strncpy(width
, "4", PCI_WIDTH_SIZE
); break;
11011 case i40e_bus_width_pcie_x2
:
11012 strncpy(width
, "2", PCI_WIDTH_SIZE
); break;
11013 case i40e_bus_width_pcie_x1
:
11014 strncpy(width
, "1", PCI_WIDTH_SIZE
); break;
11019 dev_info(&pdev
->dev
, "PCI-Express: Speed %sGT/s Width x%s\n",
11022 if (hw
->bus
.width
< i40e_bus_width_pcie_x8
||
11023 hw
->bus
.speed
< i40e_bus_speed_8000
) {
11024 dev_warn(&pdev
->dev
, "PCI-Express bandwidth available for this device may be insufficient for optimal performance.\n");
11025 dev_warn(&pdev
->dev
, "Please move the device to a different PCI-e link with more lanes and/or higher transfer rate.\n");
11029 /* get the requested speeds from the fw */
11030 err
= i40e_aq_get_phy_capabilities(hw
, false, false, &abilities
, NULL
);
11032 dev_dbg(&pf
->pdev
->dev
, "get requested speeds ret = %s last_status = %s\n",
11033 i40e_stat_str(&pf
->hw
, err
),
11034 i40e_aq_str(&pf
->hw
, pf
->hw
.aq
.asq_last_status
));
11035 pf
->hw
.phy
.link_info
.requested_speeds
= abilities
.link_speed
;
11037 /* get the supported phy types from the fw */
11038 err
= i40e_aq_get_phy_capabilities(hw
, false, true, &abilities
, NULL
);
11040 dev_dbg(&pf
->pdev
->dev
, "get supported phy types ret = %s last_status = %s\n",
11041 i40e_stat_str(&pf
->hw
, err
),
11042 i40e_aq_str(&pf
->hw
, pf
->hw
.aq
.asq_last_status
));
11043 pf
->hw
.phy
.phy_types
= le32_to_cpu(abilities
.phy_type
);
11045 /* Add a filter to drop all Flow control frames from any VSI from being
11046 * transmitted. By doing so we stop a malicious VF from sending out
11047 * PAUSE or PFC frames and potentially controlling traffic for other
11049 * The FW can still send Flow control frames if enabled.
11051 i40e_add_filter_to_drop_tx_flow_control_frames(&pf
->hw
,
11052 pf
->main_vsi_seid
);
11054 /* print a string summarizing features */
11055 i40e_print_features(pf
);
11059 /* Unwind what we've done if something failed in the setup */
11061 set_bit(__I40E_DOWN
, &pf
->state
);
11062 i40e_clear_interrupt_scheme(pf
);
11065 i40e_reset_interrupt_capability(pf
);
11066 del_timer_sync(&pf
->service_timer
);
11068 err_configure_lan_hmc
:
11069 (void)i40e_shutdown_lan_hmc(hw
);
11071 kfree(pf
->qp_pile
);
11074 (void)i40e_shutdown_adminq(hw
);
11076 iounmap(hw
->hw_addr
);
11080 pci_disable_pcie_error_reporting(pdev
);
11081 pci_release_selected_regions(pdev
,
11082 pci_select_bars(pdev
, IORESOURCE_MEM
));
11085 pci_disable_device(pdev
);
11090 * i40e_remove - Device removal routine
11091 * @pdev: PCI device information struct
11093 * i40e_remove is called by the PCI subsystem to alert the driver
11094 * that is should release a PCI device. This could be caused by a
11095 * Hot-Plug event, or because the driver is going to be removed from
11098 static void i40e_remove(struct pci_dev
*pdev
)
11100 struct i40e_pf
*pf
= pci_get_drvdata(pdev
);
11101 struct i40e_hw
*hw
= &pf
->hw
;
11102 i40e_status ret_code
;
11105 i40e_dbg_pf_exit(pf
);
11109 /* Disable RSS in hw */
11110 wr32(hw
, I40E_PFQF_HENA(0), 0);
11111 wr32(hw
, I40E_PFQF_HENA(1), 0);
11113 /* no more scheduling of any task */
11114 set_bit(__I40E_DOWN
, &pf
->state
);
11115 del_timer_sync(&pf
->service_timer
);
11116 cancel_work_sync(&pf
->service_task
);
11118 if (pf
->flags
& I40E_FLAG_SRIOV_ENABLED
) {
11120 pf
->flags
&= ~I40E_FLAG_SRIOV_ENABLED
;
11123 i40e_fdir_teardown(pf
);
11125 /* If there is a switch structure or any orphans, remove them.
11126 * This will leave only the PF's VSI remaining.
11128 for (i
= 0; i
< I40E_MAX_VEB
; i
++) {
11132 if (pf
->veb
[i
]->uplink_seid
== pf
->mac_seid
||
11133 pf
->veb
[i
]->uplink_seid
== 0)
11134 i40e_switch_branch_release(pf
->veb
[i
]);
11137 /* Now we can shutdown the PF's VSI, just before we kill
11140 if (pf
->vsi
[pf
->lan_vsi
])
11141 i40e_vsi_release(pf
->vsi
[pf
->lan_vsi
]);
11143 /* shutdown and destroy the HMC */
11144 if (pf
->hw
.hmc
.hmc_obj
) {
11145 ret_code
= i40e_shutdown_lan_hmc(&pf
->hw
);
11147 dev_warn(&pdev
->dev
,
11148 "Failed to destroy the HMC resources: %d\n",
11152 /* shutdown the adminq */
11153 ret_code
= i40e_shutdown_adminq(&pf
->hw
);
11155 dev_warn(&pdev
->dev
,
11156 "Failed to destroy the Admin Queue resources: %d\n",
11159 /* destroy the locks only once, here */
11160 mutex_destroy(&hw
->aq
.arq_mutex
);
11161 mutex_destroy(&hw
->aq
.asq_mutex
);
11163 /* Clear all dynamic memory lists of rings, q_vectors, and VSIs */
11164 i40e_clear_interrupt_scheme(pf
);
11165 for (i
= 0; i
< pf
->num_alloc_vsi
; i
++) {
11167 i40e_vsi_clear_rings(pf
->vsi
[i
]);
11168 i40e_vsi_clear(pf
->vsi
[i
]);
11173 for (i
= 0; i
< I40E_MAX_VEB
; i
++) {
11178 kfree(pf
->qp_pile
);
11181 iounmap(pf
->hw
.hw_addr
);
11183 pci_release_selected_regions(pdev
,
11184 pci_select_bars(pdev
, IORESOURCE_MEM
));
11186 pci_disable_pcie_error_reporting(pdev
);
11187 pci_disable_device(pdev
);
11191 * i40e_pci_error_detected - warning that something funky happened in PCI land
11192 * @pdev: PCI device information struct
11194 * Called to warn that something happened and the error handling steps
11195 * are in progress. Allows the driver to quiesce things, be ready for
11198 static pci_ers_result_t
i40e_pci_error_detected(struct pci_dev
*pdev
,
11199 enum pci_channel_state error
)
11201 struct i40e_pf
*pf
= pci_get_drvdata(pdev
);
11203 dev_info(&pdev
->dev
, "%s: error %d\n", __func__
, error
);
11205 /* shutdown all operations */
11206 if (!test_bit(__I40E_SUSPENDED
, &pf
->state
)) {
11208 i40e_prep_for_reset(pf
);
11212 /* Request a slot reset */
11213 return PCI_ERS_RESULT_NEED_RESET
;
11217 * i40e_pci_error_slot_reset - a PCI slot reset just happened
11218 * @pdev: PCI device information struct
11220 * Called to find if the driver can work with the device now that
11221 * the pci slot has been reset. If a basic connection seems good
11222 * (registers are readable and have sane content) then return a
11223 * happy little PCI_ERS_RESULT_xxx.
11225 static pci_ers_result_t
i40e_pci_error_slot_reset(struct pci_dev
*pdev
)
11227 struct i40e_pf
*pf
= pci_get_drvdata(pdev
);
11228 pci_ers_result_t result
;
11232 dev_dbg(&pdev
->dev
, "%s\n", __func__
);
11233 if (pci_enable_device_mem(pdev
)) {
11234 dev_info(&pdev
->dev
,
11235 "Cannot re-enable PCI device after reset.\n");
11236 result
= PCI_ERS_RESULT_DISCONNECT
;
11238 pci_set_master(pdev
);
11239 pci_restore_state(pdev
);
11240 pci_save_state(pdev
);
11241 pci_wake_from_d3(pdev
, false);
11243 reg
= rd32(&pf
->hw
, I40E_GLGEN_RTRIG
);
11245 result
= PCI_ERS_RESULT_RECOVERED
;
11247 result
= PCI_ERS_RESULT_DISCONNECT
;
11250 err
= pci_cleanup_aer_uncorrect_error_status(pdev
);
11252 dev_info(&pdev
->dev
,
11253 "pci_cleanup_aer_uncorrect_error_status failed 0x%0x\n",
11255 /* non-fatal, continue */
11262 * i40e_pci_error_resume - restart operations after PCI error recovery
11263 * @pdev: PCI device information struct
11265 * Called to allow the driver to bring things back up after PCI error
11266 * and/or reset recovery has finished.
11268 static void i40e_pci_error_resume(struct pci_dev
*pdev
)
11270 struct i40e_pf
*pf
= pci_get_drvdata(pdev
);
11272 dev_dbg(&pdev
->dev
, "%s\n", __func__
);
11273 if (test_bit(__I40E_SUSPENDED
, &pf
->state
))
11277 i40e_handle_reset_warning(pf
);
11282 * i40e_shutdown - PCI callback for shutting down
11283 * @pdev: PCI device information struct
11285 static void i40e_shutdown(struct pci_dev
*pdev
)
11287 struct i40e_pf
*pf
= pci_get_drvdata(pdev
);
11288 struct i40e_hw
*hw
= &pf
->hw
;
11290 set_bit(__I40E_SUSPENDED
, &pf
->state
);
11291 set_bit(__I40E_DOWN
, &pf
->state
);
11293 i40e_prep_for_reset(pf
);
11296 wr32(hw
, I40E_PFPM_APM
, (pf
->wol_en
? I40E_PFPM_APM_APME_MASK
: 0));
11297 wr32(hw
, I40E_PFPM_WUFC
, (pf
->wol_en
? I40E_PFPM_WUFC_MAG_MASK
: 0));
11299 del_timer_sync(&pf
->service_timer
);
11300 cancel_work_sync(&pf
->service_task
);
11301 i40e_fdir_teardown(pf
);
11304 i40e_prep_for_reset(pf
);
11307 wr32(hw
, I40E_PFPM_APM
,
11308 (pf
->wol_en
? I40E_PFPM_APM_APME_MASK
: 0));
11309 wr32(hw
, I40E_PFPM_WUFC
,
11310 (pf
->wol_en
? I40E_PFPM_WUFC_MAG_MASK
: 0));
11312 i40e_clear_interrupt_scheme(pf
);
11314 if (system_state
== SYSTEM_POWER_OFF
) {
11315 pci_wake_from_d3(pdev
, pf
->wol_en
);
11316 pci_set_power_state(pdev
, PCI_D3hot
);
11322 * i40e_suspend - PCI callback for moving to D3
11323 * @pdev: PCI device information struct
11325 static int i40e_suspend(struct pci_dev
*pdev
, pm_message_t state
)
11327 struct i40e_pf
*pf
= pci_get_drvdata(pdev
);
11328 struct i40e_hw
*hw
= &pf
->hw
;
11330 set_bit(__I40E_SUSPENDED
, &pf
->state
);
11331 set_bit(__I40E_DOWN
, &pf
->state
);
11334 i40e_prep_for_reset(pf
);
11337 wr32(hw
, I40E_PFPM_APM
, (pf
->wol_en
? I40E_PFPM_APM_APME_MASK
: 0));
11338 wr32(hw
, I40E_PFPM_WUFC
, (pf
->wol_en
? I40E_PFPM_WUFC_MAG_MASK
: 0));
11340 pci_wake_from_d3(pdev
, pf
->wol_en
);
11341 pci_set_power_state(pdev
, PCI_D3hot
);
11347 * i40e_resume - PCI callback for waking up from D3
11348 * @pdev: PCI device information struct
11350 static int i40e_resume(struct pci_dev
*pdev
)
11352 struct i40e_pf
*pf
= pci_get_drvdata(pdev
);
11355 pci_set_power_state(pdev
, PCI_D0
);
11356 pci_restore_state(pdev
);
11357 /* pci_restore_state() clears dev->state_saves, so
11358 * call pci_save_state() again to restore it.
11360 pci_save_state(pdev
);
11362 err
= pci_enable_device_mem(pdev
);
11364 dev_err(&pdev
->dev
, "Cannot enable PCI device from suspend\n");
11367 pci_set_master(pdev
);
11369 /* no wakeup events while running */
11370 pci_wake_from_d3(pdev
, false);
11372 /* handling the reset will rebuild the device state */
11373 if (test_and_clear_bit(__I40E_SUSPENDED
, &pf
->state
)) {
11374 clear_bit(__I40E_DOWN
, &pf
->state
);
11376 i40e_reset_and_rebuild(pf
, false);
11384 static const struct pci_error_handlers i40e_err_handler
= {
11385 .error_detected
= i40e_pci_error_detected
,
11386 .slot_reset
= i40e_pci_error_slot_reset
,
11387 .resume
= i40e_pci_error_resume
,
11390 static struct pci_driver i40e_driver
= {
11391 .name
= i40e_driver_name
,
11392 .id_table
= i40e_pci_tbl
,
11393 .probe
= i40e_probe
,
11394 .remove
= i40e_remove
,
11396 .suspend
= i40e_suspend
,
11397 .resume
= i40e_resume
,
11399 .shutdown
= i40e_shutdown
,
11400 .err_handler
= &i40e_err_handler
,
11401 .sriov_configure
= i40e_pci_sriov_configure
,
11405 * i40e_init_module - Driver registration routine
11407 * i40e_init_module is the first routine called when the driver is
11408 * loaded. All it does is register with the PCI subsystem.
11410 static int __init
i40e_init_module(void)
11412 pr_info("%s: %s - version %s\n", i40e_driver_name
,
11413 i40e_driver_string
, i40e_driver_version_str
);
11414 pr_info("%s: %s\n", i40e_driver_name
, i40e_copyright
);
11417 return pci_register_driver(&i40e_driver
);
11419 module_init(i40e_init_module
);
11422 * i40e_exit_module - Driver exit cleanup routine
11424 * i40e_exit_module is called just before the driver is removed
11427 static void __exit
i40e_exit_module(void)
11429 pci_unregister_driver(&i40e_driver
);
11432 module_exit(i40e_exit_module
);