1 /*******************************************************************************
3 * Intel Ethernet Controller XL710 Family Linux Driver
4 * Copyright(c) 2013 - 2016 Intel Corporation.
6 * This program is free software; you can redistribute it and/or modify it
7 * under the terms and conditions of the GNU General Public License,
8 * version 2, as published by the Free Software Foundation.
10 * This program is distributed in the hope it will be useful, but WITHOUT
11 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
12 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
15 * You should have received a copy of the GNU General Public License along
16 * with this program. If not, see <http://www.gnu.org/licenses/>.
18 * The full GNU General Public License is included in this distribution in
19 * the file called "COPYING".
21 * Contact Information:
22 * e1000-devel Mailing List <e1000-devel@lists.sourceforge.net>
23 * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
25 ******************************************************************************/
27 #include <linux/etherdevice.h>
28 #include <linux/of_net.h>
29 #include <linux/pci.h>
33 #include "i40e_diag.h"
34 #if IS_ENABLED(CONFIG_VXLAN)
35 #include <net/vxlan.h>
37 #if IS_ENABLED(CONFIG_GENEVE)
38 #include <net/geneve.h>
41 const char i40e_driver_name
[] = "i40e";
42 static const char i40e_driver_string
[] =
43 "Intel(R) Ethernet Connection XL710 Network Driver";
47 #define DRV_VERSION_MAJOR 1
48 #define DRV_VERSION_MINOR 5
49 #define DRV_VERSION_BUILD 5
50 #define DRV_VERSION __stringify(DRV_VERSION_MAJOR) "." \
51 __stringify(DRV_VERSION_MINOR) "." \
52 __stringify(DRV_VERSION_BUILD) DRV_KERN
53 const char i40e_driver_version_str
[] = DRV_VERSION
;
54 static const char i40e_copyright
[] = "Copyright (c) 2013 - 2014 Intel Corporation.";
56 /* a bit of forward declarations */
57 static void i40e_vsi_reinit_locked(struct i40e_vsi
*vsi
);
58 static void i40e_handle_reset_warning(struct i40e_pf
*pf
);
59 static int i40e_add_vsi(struct i40e_vsi
*vsi
);
60 static int i40e_add_veb(struct i40e_veb
*veb
, struct i40e_vsi
*vsi
);
61 static int i40e_setup_pf_switch(struct i40e_pf
*pf
, bool reinit
);
62 static int i40e_setup_misc_vector(struct i40e_pf
*pf
);
63 static void i40e_determine_queue_usage(struct i40e_pf
*pf
);
64 static int i40e_setup_pf_filter_control(struct i40e_pf
*pf
);
65 static void i40e_fill_rss_lut(struct i40e_pf
*pf
, u8
*lut
,
66 u16 rss_table_size
, u16 rss_size
);
67 static void i40e_fdir_sb_setup(struct i40e_pf
*pf
);
68 static int i40e_veb_get_bw_info(struct i40e_veb
*veb
);
70 /* i40e_pci_tbl - PCI Device ID Table
72 * Last entry must be all 0s
74 * { Vendor ID, Device ID, SubVendor ID, SubDevice ID,
75 * Class, Class Mask, private data (not used) }
77 static const struct pci_device_id i40e_pci_tbl
[] = {
78 {PCI_VDEVICE(INTEL
, I40E_DEV_ID_SFP_XL710
), 0},
79 {PCI_VDEVICE(INTEL
, I40E_DEV_ID_QEMU
), 0},
80 {PCI_VDEVICE(INTEL
, I40E_DEV_ID_KX_B
), 0},
81 {PCI_VDEVICE(INTEL
, I40E_DEV_ID_KX_C
), 0},
82 {PCI_VDEVICE(INTEL
, I40E_DEV_ID_QSFP_A
), 0},
83 {PCI_VDEVICE(INTEL
, I40E_DEV_ID_QSFP_B
), 0},
84 {PCI_VDEVICE(INTEL
, I40E_DEV_ID_QSFP_C
), 0},
85 {PCI_VDEVICE(INTEL
, I40E_DEV_ID_10G_BASE_T
), 0},
86 {PCI_VDEVICE(INTEL
, I40E_DEV_ID_10G_BASE_T4
), 0},
87 {PCI_VDEVICE(INTEL
, I40E_DEV_ID_20G_KR2
), 0},
88 {PCI_VDEVICE(INTEL
, I40E_DEV_ID_KX_X722
), 0},
89 {PCI_VDEVICE(INTEL
, I40E_DEV_ID_QSFP_X722
), 0},
90 {PCI_VDEVICE(INTEL
, I40E_DEV_ID_SFP_X722
), 0},
91 {PCI_VDEVICE(INTEL
, I40E_DEV_ID_1G_BASE_T_X722
), 0},
92 {PCI_VDEVICE(INTEL
, I40E_DEV_ID_10G_BASE_T_X722
), 0},
93 {PCI_VDEVICE(INTEL
, I40E_DEV_ID_SFP_I_X722
), 0},
94 {PCI_VDEVICE(INTEL
, I40E_DEV_ID_20G_KR2
), 0},
95 {PCI_VDEVICE(INTEL
, I40E_DEV_ID_20G_KR2_A
), 0},
96 /* required last entry */
99 MODULE_DEVICE_TABLE(pci
, i40e_pci_tbl
);
101 #define I40E_MAX_VF_COUNT 128
102 static int debug
= -1;
103 module_param(debug
, int, 0);
104 MODULE_PARM_DESC(debug
, "Debug level (0=none,...,16=all)");
106 MODULE_AUTHOR("Intel Corporation, <e1000-devel@lists.sourceforge.net>");
107 MODULE_DESCRIPTION("Intel(R) Ethernet Connection XL710 Network Driver");
108 MODULE_LICENSE("GPL");
109 MODULE_VERSION(DRV_VERSION
);
111 static struct workqueue_struct
*i40e_wq
;
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 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 queue_work(i40e_wq
, &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
= hw
->pf_id
+ 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
;
823 u64 tx_lost_interrupt
;
834 if (test_bit(__I40E_DOWN
, &vsi
->state
) ||
835 test_bit(__I40E_CONFIG_BUSY
, &pf
->state
))
838 ns
= i40e_get_vsi_stats_struct(vsi
);
839 ons
= &vsi
->net_stats_offsets
;
840 es
= &vsi
->eth_stats
;
841 oes
= &vsi
->eth_stats_offsets
;
843 /* Gather up the netdev and vsi stats that the driver collects
844 * on the fly during packet processing
848 tx_restart
= tx_busy
= tx_linearize
= tx_force_wb
= 0;
849 tx_lost_interrupt
= 0;
853 for (q
= 0; q
< vsi
->num_queue_pairs
; q
++) {
855 p
= ACCESS_ONCE(vsi
->tx_rings
[q
]);
858 start
= u64_stats_fetch_begin_irq(&p
->syncp
);
859 packets
= p
->stats
.packets
;
860 bytes
= p
->stats
.bytes
;
861 } while (u64_stats_fetch_retry_irq(&p
->syncp
, start
));
864 tx_restart
+= p
->tx_stats
.restart_queue
;
865 tx_busy
+= p
->tx_stats
.tx_busy
;
866 tx_linearize
+= p
->tx_stats
.tx_linearize
;
867 tx_force_wb
+= p
->tx_stats
.tx_force_wb
;
868 tx_lost_interrupt
+= p
->tx_stats
.tx_lost_interrupt
;
870 /* Rx queue is part of the same block as Tx queue */
873 start
= u64_stats_fetch_begin_irq(&p
->syncp
);
874 packets
= p
->stats
.packets
;
875 bytes
= p
->stats
.bytes
;
876 } while (u64_stats_fetch_retry_irq(&p
->syncp
, start
));
879 rx_buf
+= p
->rx_stats
.alloc_buff_failed
;
880 rx_page
+= p
->rx_stats
.alloc_page_failed
;
883 vsi
->tx_restart
= tx_restart
;
884 vsi
->tx_busy
= tx_busy
;
885 vsi
->tx_linearize
= tx_linearize
;
886 vsi
->tx_force_wb
= tx_force_wb
;
887 vsi
->tx_lost_interrupt
= tx_lost_interrupt
;
888 vsi
->rx_page_failed
= rx_page
;
889 vsi
->rx_buf_failed
= rx_buf
;
891 ns
->rx_packets
= rx_p
;
893 ns
->tx_packets
= tx_p
;
896 /* update netdev stats from eth stats */
897 i40e_update_eth_stats(vsi
);
898 ons
->tx_errors
= oes
->tx_errors
;
899 ns
->tx_errors
= es
->tx_errors
;
900 ons
->multicast
= oes
->rx_multicast
;
901 ns
->multicast
= es
->rx_multicast
;
902 ons
->rx_dropped
= oes
->rx_discards
;
903 ns
->rx_dropped
= es
->rx_discards
;
904 ons
->tx_dropped
= oes
->tx_discards
;
905 ns
->tx_dropped
= es
->tx_discards
;
907 /* pull in a couple PF stats if this is the main vsi */
908 if (vsi
== pf
->vsi
[pf
->lan_vsi
]) {
909 ns
->rx_crc_errors
= pf
->stats
.crc_errors
;
910 ns
->rx_errors
= pf
->stats
.crc_errors
+ pf
->stats
.illegal_bytes
;
911 ns
->rx_length_errors
= pf
->stats
.rx_length_errors
;
916 * i40e_update_pf_stats - Update the PF statistics counters.
917 * @pf: the PF to be updated
919 static void i40e_update_pf_stats(struct i40e_pf
*pf
)
921 struct i40e_hw_port_stats
*osd
= &pf
->stats_offsets
;
922 struct i40e_hw_port_stats
*nsd
= &pf
->stats
;
923 struct i40e_hw
*hw
= &pf
->hw
;
927 i40e_stat_update48(hw
, I40E_GLPRT_GORCH(hw
->port
),
928 I40E_GLPRT_GORCL(hw
->port
),
929 pf
->stat_offsets_loaded
,
930 &osd
->eth
.rx_bytes
, &nsd
->eth
.rx_bytes
);
931 i40e_stat_update48(hw
, I40E_GLPRT_GOTCH(hw
->port
),
932 I40E_GLPRT_GOTCL(hw
->port
),
933 pf
->stat_offsets_loaded
,
934 &osd
->eth
.tx_bytes
, &nsd
->eth
.tx_bytes
);
935 i40e_stat_update32(hw
, I40E_GLPRT_RDPC(hw
->port
),
936 pf
->stat_offsets_loaded
,
937 &osd
->eth
.rx_discards
,
938 &nsd
->eth
.rx_discards
);
939 i40e_stat_update48(hw
, I40E_GLPRT_UPRCH(hw
->port
),
940 I40E_GLPRT_UPRCL(hw
->port
),
941 pf
->stat_offsets_loaded
,
942 &osd
->eth
.rx_unicast
,
943 &nsd
->eth
.rx_unicast
);
944 i40e_stat_update48(hw
, I40E_GLPRT_MPRCH(hw
->port
),
945 I40E_GLPRT_MPRCL(hw
->port
),
946 pf
->stat_offsets_loaded
,
947 &osd
->eth
.rx_multicast
,
948 &nsd
->eth
.rx_multicast
);
949 i40e_stat_update48(hw
, I40E_GLPRT_BPRCH(hw
->port
),
950 I40E_GLPRT_BPRCL(hw
->port
),
951 pf
->stat_offsets_loaded
,
952 &osd
->eth
.rx_broadcast
,
953 &nsd
->eth
.rx_broadcast
);
954 i40e_stat_update48(hw
, I40E_GLPRT_UPTCH(hw
->port
),
955 I40E_GLPRT_UPTCL(hw
->port
),
956 pf
->stat_offsets_loaded
,
957 &osd
->eth
.tx_unicast
,
958 &nsd
->eth
.tx_unicast
);
959 i40e_stat_update48(hw
, I40E_GLPRT_MPTCH(hw
->port
),
960 I40E_GLPRT_MPTCL(hw
->port
),
961 pf
->stat_offsets_loaded
,
962 &osd
->eth
.tx_multicast
,
963 &nsd
->eth
.tx_multicast
);
964 i40e_stat_update48(hw
, I40E_GLPRT_BPTCH(hw
->port
),
965 I40E_GLPRT_BPTCL(hw
->port
),
966 pf
->stat_offsets_loaded
,
967 &osd
->eth
.tx_broadcast
,
968 &nsd
->eth
.tx_broadcast
);
970 i40e_stat_update32(hw
, I40E_GLPRT_TDOLD(hw
->port
),
971 pf
->stat_offsets_loaded
,
972 &osd
->tx_dropped_link_down
,
973 &nsd
->tx_dropped_link_down
);
975 i40e_stat_update32(hw
, I40E_GLPRT_CRCERRS(hw
->port
),
976 pf
->stat_offsets_loaded
,
977 &osd
->crc_errors
, &nsd
->crc_errors
);
979 i40e_stat_update32(hw
, I40E_GLPRT_ILLERRC(hw
->port
),
980 pf
->stat_offsets_loaded
,
981 &osd
->illegal_bytes
, &nsd
->illegal_bytes
);
983 i40e_stat_update32(hw
, I40E_GLPRT_MLFC(hw
->port
),
984 pf
->stat_offsets_loaded
,
985 &osd
->mac_local_faults
,
986 &nsd
->mac_local_faults
);
987 i40e_stat_update32(hw
, I40E_GLPRT_MRFC(hw
->port
),
988 pf
->stat_offsets_loaded
,
989 &osd
->mac_remote_faults
,
990 &nsd
->mac_remote_faults
);
992 i40e_stat_update32(hw
, I40E_GLPRT_RLEC(hw
->port
),
993 pf
->stat_offsets_loaded
,
994 &osd
->rx_length_errors
,
995 &nsd
->rx_length_errors
);
997 i40e_stat_update32(hw
, I40E_GLPRT_LXONRXC(hw
->port
),
998 pf
->stat_offsets_loaded
,
999 &osd
->link_xon_rx
, &nsd
->link_xon_rx
);
1000 i40e_stat_update32(hw
, I40E_GLPRT_LXONTXC(hw
->port
),
1001 pf
->stat_offsets_loaded
,
1002 &osd
->link_xon_tx
, &nsd
->link_xon_tx
);
1003 i40e_stat_update32(hw
, I40E_GLPRT_LXOFFRXC(hw
->port
),
1004 pf
->stat_offsets_loaded
,
1005 &osd
->link_xoff_rx
, &nsd
->link_xoff_rx
);
1006 i40e_stat_update32(hw
, I40E_GLPRT_LXOFFTXC(hw
->port
),
1007 pf
->stat_offsets_loaded
,
1008 &osd
->link_xoff_tx
, &nsd
->link_xoff_tx
);
1010 for (i
= 0; i
< 8; i
++) {
1011 i40e_stat_update32(hw
, I40E_GLPRT_PXOFFRXC(hw
->port
, i
),
1012 pf
->stat_offsets_loaded
,
1013 &osd
->priority_xoff_rx
[i
],
1014 &nsd
->priority_xoff_rx
[i
]);
1015 i40e_stat_update32(hw
, I40E_GLPRT_PXONRXC(hw
->port
, i
),
1016 pf
->stat_offsets_loaded
,
1017 &osd
->priority_xon_rx
[i
],
1018 &nsd
->priority_xon_rx
[i
]);
1019 i40e_stat_update32(hw
, I40E_GLPRT_PXONTXC(hw
->port
, i
),
1020 pf
->stat_offsets_loaded
,
1021 &osd
->priority_xon_tx
[i
],
1022 &nsd
->priority_xon_tx
[i
]);
1023 i40e_stat_update32(hw
, I40E_GLPRT_PXOFFTXC(hw
->port
, i
),
1024 pf
->stat_offsets_loaded
,
1025 &osd
->priority_xoff_tx
[i
],
1026 &nsd
->priority_xoff_tx
[i
]);
1027 i40e_stat_update32(hw
,
1028 I40E_GLPRT_RXON2OFFCNT(hw
->port
, i
),
1029 pf
->stat_offsets_loaded
,
1030 &osd
->priority_xon_2_xoff
[i
],
1031 &nsd
->priority_xon_2_xoff
[i
]);
1034 i40e_stat_update48(hw
, I40E_GLPRT_PRC64H(hw
->port
),
1035 I40E_GLPRT_PRC64L(hw
->port
),
1036 pf
->stat_offsets_loaded
,
1037 &osd
->rx_size_64
, &nsd
->rx_size_64
);
1038 i40e_stat_update48(hw
, I40E_GLPRT_PRC127H(hw
->port
),
1039 I40E_GLPRT_PRC127L(hw
->port
),
1040 pf
->stat_offsets_loaded
,
1041 &osd
->rx_size_127
, &nsd
->rx_size_127
);
1042 i40e_stat_update48(hw
, I40E_GLPRT_PRC255H(hw
->port
),
1043 I40E_GLPRT_PRC255L(hw
->port
),
1044 pf
->stat_offsets_loaded
,
1045 &osd
->rx_size_255
, &nsd
->rx_size_255
);
1046 i40e_stat_update48(hw
, I40E_GLPRT_PRC511H(hw
->port
),
1047 I40E_GLPRT_PRC511L(hw
->port
),
1048 pf
->stat_offsets_loaded
,
1049 &osd
->rx_size_511
, &nsd
->rx_size_511
);
1050 i40e_stat_update48(hw
, I40E_GLPRT_PRC1023H(hw
->port
),
1051 I40E_GLPRT_PRC1023L(hw
->port
),
1052 pf
->stat_offsets_loaded
,
1053 &osd
->rx_size_1023
, &nsd
->rx_size_1023
);
1054 i40e_stat_update48(hw
, I40E_GLPRT_PRC1522H(hw
->port
),
1055 I40E_GLPRT_PRC1522L(hw
->port
),
1056 pf
->stat_offsets_loaded
,
1057 &osd
->rx_size_1522
, &nsd
->rx_size_1522
);
1058 i40e_stat_update48(hw
, I40E_GLPRT_PRC9522H(hw
->port
),
1059 I40E_GLPRT_PRC9522L(hw
->port
),
1060 pf
->stat_offsets_loaded
,
1061 &osd
->rx_size_big
, &nsd
->rx_size_big
);
1063 i40e_stat_update48(hw
, I40E_GLPRT_PTC64H(hw
->port
),
1064 I40E_GLPRT_PTC64L(hw
->port
),
1065 pf
->stat_offsets_loaded
,
1066 &osd
->tx_size_64
, &nsd
->tx_size_64
);
1067 i40e_stat_update48(hw
, I40E_GLPRT_PTC127H(hw
->port
),
1068 I40E_GLPRT_PTC127L(hw
->port
),
1069 pf
->stat_offsets_loaded
,
1070 &osd
->tx_size_127
, &nsd
->tx_size_127
);
1071 i40e_stat_update48(hw
, I40E_GLPRT_PTC255H(hw
->port
),
1072 I40E_GLPRT_PTC255L(hw
->port
),
1073 pf
->stat_offsets_loaded
,
1074 &osd
->tx_size_255
, &nsd
->tx_size_255
);
1075 i40e_stat_update48(hw
, I40E_GLPRT_PTC511H(hw
->port
),
1076 I40E_GLPRT_PTC511L(hw
->port
),
1077 pf
->stat_offsets_loaded
,
1078 &osd
->tx_size_511
, &nsd
->tx_size_511
);
1079 i40e_stat_update48(hw
, I40E_GLPRT_PTC1023H(hw
->port
),
1080 I40E_GLPRT_PTC1023L(hw
->port
),
1081 pf
->stat_offsets_loaded
,
1082 &osd
->tx_size_1023
, &nsd
->tx_size_1023
);
1083 i40e_stat_update48(hw
, I40E_GLPRT_PTC1522H(hw
->port
),
1084 I40E_GLPRT_PTC1522L(hw
->port
),
1085 pf
->stat_offsets_loaded
,
1086 &osd
->tx_size_1522
, &nsd
->tx_size_1522
);
1087 i40e_stat_update48(hw
, I40E_GLPRT_PTC9522H(hw
->port
),
1088 I40E_GLPRT_PTC9522L(hw
->port
),
1089 pf
->stat_offsets_loaded
,
1090 &osd
->tx_size_big
, &nsd
->tx_size_big
);
1092 i40e_stat_update32(hw
, I40E_GLPRT_RUC(hw
->port
),
1093 pf
->stat_offsets_loaded
,
1094 &osd
->rx_undersize
, &nsd
->rx_undersize
);
1095 i40e_stat_update32(hw
, I40E_GLPRT_RFC(hw
->port
),
1096 pf
->stat_offsets_loaded
,
1097 &osd
->rx_fragments
, &nsd
->rx_fragments
);
1098 i40e_stat_update32(hw
, I40E_GLPRT_ROC(hw
->port
),
1099 pf
->stat_offsets_loaded
,
1100 &osd
->rx_oversize
, &nsd
->rx_oversize
);
1101 i40e_stat_update32(hw
, I40E_GLPRT_RJC(hw
->port
),
1102 pf
->stat_offsets_loaded
,
1103 &osd
->rx_jabber
, &nsd
->rx_jabber
);
1106 i40e_stat_update32(hw
,
1107 I40E_GLQF_PCNT(I40E_FD_ATR_STAT_IDX(pf
->hw
.pf_id
)),
1108 pf
->stat_offsets_loaded
,
1109 &osd
->fd_atr_match
, &nsd
->fd_atr_match
);
1110 i40e_stat_update32(hw
,
1111 I40E_GLQF_PCNT(I40E_FD_SB_STAT_IDX(pf
->hw
.pf_id
)),
1112 pf
->stat_offsets_loaded
,
1113 &osd
->fd_sb_match
, &nsd
->fd_sb_match
);
1114 i40e_stat_update32(hw
,
1115 I40E_GLQF_PCNT(I40E_FD_ATR_TUNNEL_STAT_IDX(pf
->hw
.pf_id
)),
1116 pf
->stat_offsets_loaded
,
1117 &osd
->fd_atr_tunnel_match
, &nsd
->fd_atr_tunnel_match
);
1119 val
= rd32(hw
, I40E_PRTPM_EEE_STAT
);
1120 nsd
->tx_lpi_status
=
1121 (val
& I40E_PRTPM_EEE_STAT_TX_LPI_STATUS_MASK
) >>
1122 I40E_PRTPM_EEE_STAT_TX_LPI_STATUS_SHIFT
;
1123 nsd
->rx_lpi_status
=
1124 (val
& I40E_PRTPM_EEE_STAT_RX_LPI_STATUS_MASK
) >>
1125 I40E_PRTPM_EEE_STAT_RX_LPI_STATUS_SHIFT
;
1126 i40e_stat_update32(hw
, I40E_PRTPM_TLPIC
,
1127 pf
->stat_offsets_loaded
,
1128 &osd
->tx_lpi_count
, &nsd
->tx_lpi_count
);
1129 i40e_stat_update32(hw
, I40E_PRTPM_RLPIC
,
1130 pf
->stat_offsets_loaded
,
1131 &osd
->rx_lpi_count
, &nsd
->rx_lpi_count
);
1133 if (pf
->flags
& I40E_FLAG_FD_SB_ENABLED
&&
1134 !(pf
->auto_disable_flags
& I40E_FLAG_FD_SB_ENABLED
))
1135 nsd
->fd_sb_status
= true;
1137 nsd
->fd_sb_status
= false;
1139 if (pf
->flags
& I40E_FLAG_FD_ATR_ENABLED
&&
1140 !(pf
->auto_disable_flags
& I40E_FLAG_FD_ATR_ENABLED
))
1141 nsd
->fd_atr_status
= true;
1143 nsd
->fd_atr_status
= false;
1145 pf
->stat_offsets_loaded
= true;
1149 * i40e_update_stats - Update the various statistics counters.
1150 * @vsi: the VSI to be updated
1152 * Update the various stats for this VSI and its related entities.
1154 void i40e_update_stats(struct i40e_vsi
*vsi
)
1156 struct i40e_pf
*pf
= vsi
->back
;
1158 if (vsi
== pf
->vsi
[pf
->lan_vsi
])
1159 i40e_update_pf_stats(pf
);
1161 i40e_update_vsi_stats(vsi
);
1163 i40e_update_fcoe_stats(vsi
);
1168 * i40e_find_filter - Search VSI filter list for specific mac/vlan filter
1169 * @vsi: the VSI to be searched
1170 * @macaddr: the MAC address
1172 * @is_vf: make sure its a VF filter, else doesn't matter
1173 * @is_netdev: make sure its a netdev filter, else doesn't matter
1175 * Returns ptr to the filter object or NULL
1177 static struct i40e_mac_filter
*i40e_find_filter(struct i40e_vsi
*vsi
,
1178 u8
*macaddr
, s16 vlan
,
1179 bool is_vf
, bool is_netdev
)
1181 struct i40e_mac_filter
*f
;
1183 if (!vsi
|| !macaddr
)
1186 list_for_each_entry(f
, &vsi
->mac_filter_list
, list
) {
1187 if ((ether_addr_equal(macaddr
, f
->macaddr
)) &&
1188 (vlan
== f
->vlan
) &&
1189 (!is_vf
|| f
->is_vf
) &&
1190 (!is_netdev
|| f
->is_netdev
))
1197 * i40e_find_mac - Find a mac addr in the macvlan filters list
1198 * @vsi: the VSI to be searched
1199 * @macaddr: the MAC address we are searching for
1200 * @is_vf: make sure its a VF filter, else doesn't matter
1201 * @is_netdev: make sure its a netdev filter, else doesn't matter
1203 * Returns the first filter with the provided MAC address or NULL if
1204 * MAC address was not found
1206 struct i40e_mac_filter
*i40e_find_mac(struct i40e_vsi
*vsi
, u8
*macaddr
,
1207 bool is_vf
, bool is_netdev
)
1209 struct i40e_mac_filter
*f
;
1211 if (!vsi
|| !macaddr
)
1214 list_for_each_entry(f
, &vsi
->mac_filter_list
, list
) {
1215 if ((ether_addr_equal(macaddr
, f
->macaddr
)) &&
1216 (!is_vf
|| f
->is_vf
) &&
1217 (!is_netdev
|| f
->is_netdev
))
1224 * i40e_is_vsi_in_vlan - Check if VSI is in vlan mode
1225 * @vsi: the VSI to be searched
1227 * Returns true if VSI is in vlan mode or false otherwise
1229 bool i40e_is_vsi_in_vlan(struct i40e_vsi
*vsi
)
1231 struct i40e_mac_filter
*f
;
1233 /* Only -1 for all the filters denotes not in vlan mode
1234 * so we have to go through all the list in order to make sure
1236 list_for_each_entry(f
, &vsi
->mac_filter_list
, list
) {
1237 if (f
->vlan
>= 0 || vsi
->info
.pvid
)
1245 * i40e_put_mac_in_vlan - Make macvlan filters from macaddrs and vlans
1246 * @vsi: the VSI to be searched
1247 * @macaddr: the mac address to be filtered
1248 * @is_vf: true if it is a VF
1249 * @is_netdev: true if it is a netdev
1251 * Goes through all the macvlan filters and adds a
1252 * macvlan filter for each unique vlan that already exists
1254 * Returns first filter found on success, else NULL
1256 struct i40e_mac_filter
*i40e_put_mac_in_vlan(struct i40e_vsi
*vsi
, u8
*macaddr
,
1257 bool is_vf
, bool is_netdev
)
1259 struct i40e_mac_filter
*f
;
1261 list_for_each_entry(f
, &vsi
->mac_filter_list
, list
) {
1263 f
->vlan
= le16_to_cpu(vsi
->info
.pvid
);
1264 if (!i40e_find_filter(vsi
, macaddr
, f
->vlan
,
1265 is_vf
, is_netdev
)) {
1266 if (!i40e_add_filter(vsi
, macaddr
, f
->vlan
,
1272 return list_first_entry_or_null(&vsi
->mac_filter_list
,
1273 struct i40e_mac_filter
, list
);
1277 * i40e_del_mac_all_vlan - Remove a MAC filter from all VLANS
1278 * @vsi: the VSI to be searched
1279 * @macaddr: the mac address to be removed
1280 * @is_vf: true if it is a VF
1281 * @is_netdev: true if it is a netdev
1283 * Removes a given MAC address from a VSI, regardless of VLAN
1285 * Returns 0 for success, or error
1287 int i40e_del_mac_all_vlan(struct i40e_vsi
*vsi
, u8
*macaddr
,
1288 bool is_vf
, bool is_netdev
)
1290 struct i40e_mac_filter
*f
= NULL
;
1293 WARN(!spin_is_locked(&vsi
->mac_filter_list_lock
),
1294 "Missing mac_filter_list_lock\n");
1295 list_for_each_entry(f
, &vsi
->mac_filter_list
, list
) {
1296 if ((ether_addr_equal(macaddr
, f
->macaddr
)) &&
1297 (is_vf
== f
->is_vf
) &&
1298 (is_netdev
== f
->is_netdev
)) {
1305 vsi
->flags
|= I40E_VSI_FLAG_FILTER_CHANGED
;
1306 vsi
->back
->flags
|= I40E_FLAG_FILTER_SYNC
;
1313 * i40e_rm_default_mac_filter - Remove the default MAC filter set by NVM
1314 * @vsi: the PF Main VSI - inappropriate for any other VSI
1315 * @macaddr: the MAC address
1317 * Some older firmware configurations set up a default promiscuous VLAN
1318 * filter that needs to be removed.
1320 static int i40e_rm_default_mac_filter(struct i40e_vsi
*vsi
, u8
*macaddr
)
1322 struct i40e_aqc_remove_macvlan_element_data element
;
1323 struct i40e_pf
*pf
= vsi
->back
;
1326 /* Only appropriate for the PF main VSI */
1327 if (vsi
->type
!= I40E_VSI_MAIN
)
1330 memset(&element
, 0, sizeof(element
));
1331 ether_addr_copy(element
.mac_addr
, macaddr
);
1332 element
.vlan_tag
= 0;
1333 element
.flags
= I40E_AQC_MACVLAN_DEL_PERFECT_MATCH
|
1334 I40E_AQC_MACVLAN_DEL_IGNORE_VLAN
;
1335 ret
= i40e_aq_remove_macvlan(&pf
->hw
, vsi
->seid
, &element
, 1, NULL
);
1343 * i40e_add_filter - Add a mac/vlan filter to the VSI
1344 * @vsi: the VSI to be searched
1345 * @macaddr: the MAC address
1347 * @is_vf: make sure its a VF filter, else doesn't matter
1348 * @is_netdev: make sure its a netdev filter, else doesn't matter
1350 * Returns ptr to the filter object or NULL when no memory available.
1352 * NOTE: This function is expected to be called with mac_filter_list_lock
1355 struct i40e_mac_filter
*i40e_add_filter(struct i40e_vsi
*vsi
,
1356 u8
*macaddr
, s16 vlan
,
1357 bool is_vf
, bool is_netdev
)
1359 struct i40e_mac_filter
*f
;
1361 if (!vsi
|| !macaddr
)
1364 f
= i40e_find_filter(vsi
, macaddr
, vlan
, is_vf
, is_netdev
);
1366 f
= kzalloc(sizeof(*f
), GFP_ATOMIC
);
1368 goto add_filter_out
;
1370 ether_addr_copy(f
->macaddr
, macaddr
);
1374 INIT_LIST_HEAD(&f
->list
);
1375 list_add_tail(&f
->list
, &vsi
->mac_filter_list
);
1378 /* increment counter and add a new flag if needed */
1384 } else if (is_netdev
) {
1385 if (!f
->is_netdev
) {
1386 f
->is_netdev
= true;
1393 /* changed tells sync_filters_subtask to
1394 * push the filter down to the firmware
1397 vsi
->flags
|= I40E_VSI_FLAG_FILTER_CHANGED
;
1398 vsi
->back
->flags
|= I40E_FLAG_FILTER_SYNC
;
1406 * i40e_del_filter - Remove a mac/vlan filter from the VSI
1407 * @vsi: the VSI to be searched
1408 * @macaddr: the MAC address
1410 * @is_vf: make sure it's a VF filter, else doesn't matter
1411 * @is_netdev: make sure it's a netdev filter, else doesn't matter
1413 * NOTE: This function is expected to be called with mac_filter_list_lock
1416 void i40e_del_filter(struct i40e_vsi
*vsi
,
1417 u8
*macaddr
, s16 vlan
,
1418 bool is_vf
, bool is_netdev
)
1420 struct i40e_mac_filter
*f
;
1422 if (!vsi
|| !macaddr
)
1425 f
= i40e_find_filter(vsi
, macaddr
, vlan
, is_vf
, is_netdev
);
1426 if (!f
|| f
->counter
== 0)
1434 } else if (is_netdev
) {
1436 f
->is_netdev
= false;
1440 /* make sure we don't remove a filter in use by VF or netdev */
1443 min_f
+= (f
->is_vf
? 1 : 0);
1444 min_f
+= (f
->is_netdev
? 1 : 0);
1446 if (f
->counter
> min_f
)
1450 /* counter == 0 tells sync_filters_subtask to
1451 * remove the filter from the firmware's list
1453 if (f
->counter
== 0) {
1455 vsi
->flags
|= I40E_VSI_FLAG_FILTER_CHANGED
;
1456 vsi
->back
->flags
|= I40E_FLAG_FILTER_SYNC
;
1461 * i40e_set_mac - NDO callback to set mac address
1462 * @netdev: network interface device structure
1463 * @p: pointer to an address structure
1465 * Returns 0 on success, negative on failure
1468 int i40e_set_mac(struct net_device
*netdev
, void *p
)
1470 static int i40e_set_mac(struct net_device
*netdev
, void *p
)
1473 struct i40e_netdev_priv
*np
= netdev_priv(netdev
);
1474 struct i40e_vsi
*vsi
= np
->vsi
;
1475 struct i40e_pf
*pf
= vsi
->back
;
1476 struct i40e_hw
*hw
= &pf
->hw
;
1477 struct sockaddr
*addr
= p
;
1478 struct i40e_mac_filter
*f
;
1480 if (!is_valid_ether_addr(addr
->sa_data
))
1481 return -EADDRNOTAVAIL
;
1483 if (ether_addr_equal(netdev
->dev_addr
, addr
->sa_data
)) {
1484 netdev_info(netdev
, "already using mac address %pM\n",
1489 if (test_bit(__I40E_DOWN
, &vsi
->back
->state
) ||
1490 test_bit(__I40E_RESET_RECOVERY_PENDING
, &vsi
->back
->state
))
1491 return -EADDRNOTAVAIL
;
1493 if (ether_addr_equal(hw
->mac
.addr
, addr
->sa_data
))
1494 netdev_info(netdev
, "returning to hw mac address %pM\n",
1497 netdev_info(netdev
, "set new mac address %pM\n", addr
->sa_data
);
1499 if (vsi
->type
== I40E_VSI_MAIN
) {
1502 ret
= i40e_aq_mac_address_write(&vsi
->back
->hw
,
1503 I40E_AQC_WRITE_TYPE_LAA_WOL
,
1504 addr
->sa_data
, NULL
);
1507 "Addr change for Main VSI failed: %d\n",
1509 return -EADDRNOTAVAIL
;
1513 if (ether_addr_equal(netdev
->dev_addr
, hw
->mac
.addr
)) {
1514 struct i40e_aqc_remove_macvlan_element_data element
;
1516 memset(&element
, 0, sizeof(element
));
1517 ether_addr_copy(element
.mac_addr
, netdev
->dev_addr
);
1518 element
.flags
= I40E_AQC_MACVLAN_DEL_PERFECT_MATCH
;
1519 i40e_aq_remove_macvlan(&pf
->hw
, vsi
->seid
, &element
, 1, NULL
);
1521 spin_lock_bh(&vsi
->mac_filter_list_lock
);
1522 i40e_del_filter(vsi
, netdev
->dev_addr
, I40E_VLAN_ANY
,
1524 spin_unlock_bh(&vsi
->mac_filter_list_lock
);
1527 if (ether_addr_equal(addr
->sa_data
, hw
->mac
.addr
)) {
1528 struct i40e_aqc_add_macvlan_element_data element
;
1530 memset(&element
, 0, sizeof(element
));
1531 ether_addr_copy(element
.mac_addr
, hw
->mac
.addr
);
1532 element
.flags
= cpu_to_le16(I40E_AQC_MACVLAN_ADD_PERFECT_MATCH
);
1533 i40e_aq_add_macvlan(&pf
->hw
, vsi
->seid
, &element
, 1, NULL
);
1535 spin_lock_bh(&vsi
->mac_filter_list_lock
);
1536 f
= i40e_add_filter(vsi
, addr
->sa_data
, I40E_VLAN_ANY
,
1540 spin_unlock_bh(&vsi
->mac_filter_list_lock
);
1543 ether_addr_copy(netdev
->dev_addr
, addr
->sa_data
);
1545 /* schedule our worker thread which will take care of
1546 * applying the new filter changes
1548 i40e_service_event_schedule(vsi
->back
);
1553 * i40e_vsi_setup_queue_map - Setup a VSI queue map based on enabled_tc
1554 * @vsi: the VSI being setup
1555 * @ctxt: VSI context structure
1556 * @enabled_tc: Enabled TCs bitmap
1557 * @is_add: True if called before Add VSI
1559 * Setup VSI queue mapping for enabled traffic classes.
1562 void i40e_vsi_setup_queue_map(struct i40e_vsi
*vsi
,
1563 struct i40e_vsi_context
*ctxt
,
1567 static void i40e_vsi_setup_queue_map(struct i40e_vsi
*vsi
,
1568 struct i40e_vsi_context
*ctxt
,
1573 struct i40e_pf
*pf
= vsi
->back
;
1583 sections
= I40E_AQ_VSI_PROP_QUEUE_MAP_VALID
;
1586 if (enabled_tc
&& (vsi
->back
->flags
& I40E_FLAG_DCB_ENABLED
)) {
1587 /* Find numtc from enabled TC bitmap */
1588 for (i
= 0; i
< I40E_MAX_TRAFFIC_CLASS
; i
++) {
1589 if (enabled_tc
& BIT(i
)) /* TC is enabled */
1593 dev_warn(&pf
->pdev
->dev
, "DCB is enabled but no TC enabled, forcing TC0\n");
1597 /* At least TC0 is enabled in case of non-DCB case */
1601 vsi
->tc_config
.numtc
= numtc
;
1602 vsi
->tc_config
.enabled_tc
= enabled_tc
? enabled_tc
: 1;
1603 /* Number of queues per enabled TC */
1604 /* In MFP case we can have a much lower count of MSIx
1605 * vectors available and so we need to lower the used
1608 if (pf
->flags
& I40E_FLAG_MSIX_ENABLED
)
1609 qcount
= min_t(int, vsi
->alloc_queue_pairs
, pf
->num_lan_msix
);
1611 qcount
= vsi
->alloc_queue_pairs
;
1612 num_tc_qps
= qcount
/ numtc
;
1613 num_tc_qps
= min_t(int, num_tc_qps
, i40e_pf_get_max_q_per_tc(pf
));
1615 /* Setup queue offset/count for all TCs for given VSI */
1616 for (i
= 0; i
< I40E_MAX_TRAFFIC_CLASS
; i
++) {
1617 /* See if the given TC is enabled for the given VSI */
1618 if (vsi
->tc_config
.enabled_tc
& BIT(i
)) {
1622 switch (vsi
->type
) {
1624 qcount
= min_t(int, pf
->alloc_rss_size
,
1629 qcount
= num_tc_qps
;
1633 case I40E_VSI_SRIOV
:
1634 case I40E_VSI_VMDQ2
:
1636 qcount
= num_tc_qps
;
1640 vsi
->tc_config
.tc_info
[i
].qoffset
= offset
;
1641 vsi
->tc_config
.tc_info
[i
].qcount
= qcount
;
1643 /* find the next higher power-of-2 of num queue pairs */
1646 while (num_qps
&& (BIT_ULL(pow
) < qcount
)) {
1651 vsi
->tc_config
.tc_info
[i
].netdev_tc
= netdev_tc
++;
1653 (offset
<< I40E_AQ_VSI_TC_QUE_OFFSET_SHIFT
) |
1654 (pow
<< I40E_AQ_VSI_TC_QUE_NUMBER_SHIFT
);
1658 /* TC is not enabled so set the offset to
1659 * default queue and allocate one queue
1662 vsi
->tc_config
.tc_info
[i
].qoffset
= 0;
1663 vsi
->tc_config
.tc_info
[i
].qcount
= 1;
1664 vsi
->tc_config
.tc_info
[i
].netdev_tc
= 0;
1668 ctxt
->info
.tc_mapping
[i
] = cpu_to_le16(qmap
);
1671 /* Set actual Tx/Rx queue pairs */
1672 vsi
->num_queue_pairs
= offset
;
1673 if ((vsi
->type
== I40E_VSI_MAIN
) && (numtc
== 1)) {
1674 if (vsi
->req_queue_pairs
> 0)
1675 vsi
->num_queue_pairs
= vsi
->req_queue_pairs
;
1676 else if (pf
->flags
& I40E_FLAG_MSIX_ENABLED
)
1677 vsi
->num_queue_pairs
= pf
->num_lan_msix
;
1680 /* Scheduler section valid can only be set for ADD VSI */
1682 sections
|= I40E_AQ_VSI_PROP_SCHED_VALID
;
1684 ctxt
->info
.up_enable_bits
= enabled_tc
;
1686 if (vsi
->type
== I40E_VSI_SRIOV
) {
1687 ctxt
->info
.mapping_flags
|=
1688 cpu_to_le16(I40E_AQ_VSI_QUE_MAP_NONCONTIG
);
1689 for (i
= 0; i
< vsi
->num_queue_pairs
; i
++)
1690 ctxt
->info
.queue_mapping
[i
] =
1691 cpu_to_le16(vsi
->base_queue
+ i
);
1693 ctxt
->info
.mapping_flags
|=
1694 cpu_to_le16(I40E_AQ_VSI_QUE_MAP_CONTIG
);
1695 ctxt
->info
.queue_mapping
[0] = cpu_to_le16(vsi
->base_queue
);
1697 ctxt
->info
.valid_sections
|= cpu_to_le16(sections
);
1701 * i40e_set_rx_mode - NDO callback to set the netdev filters
1702 * @netdev: network interface device structure
1705 void i40e_set_rx_mode(struct net_device
*netdev
)
1707 static void i40e_set_rx_mode(struct net_device
*netdev
)
1710 struct i40e_netdev_priv
*np
= netdev_priv(netdev
);
1711 struct i40e_mac_filter
*f
, *ftmp
;
1712 struct i40e_vsi
*vsi
= np
->vsi
;
1713 struct netdev_hw_addr
*uca
;
1714 struct netdev_hw_addr
*mca
;
1715 struct netdev_hw_addr
*ha
;
1717 spin_lock_bh(&vsi
->mac_filter_list_lock
);
1719 /* add addr if not already in the filter list */
1720 netdev_for_each_uc_addr(uca
, netdev
) {
1721 if (!i40e_find_mac(vsi
, uca
->addr
, false, true)) {
1722 if (i40e_is_vsi_in_vlan(vsi
))
1723 i40e_put_mac_in_vlan(vsi
, uca
->addr
,
1726 i40e_add_filter(vsi
, uca
->addr
, I40E_VLAN_ANY
,
1731 netdev_for_each_mc_addr(mca
, netdev
) {
1732 if (!i40e_find_mac(vsi
, mca
->addr
, false, true)) {
1733 if (i40e_is_vsi_in_vlan(vsi
))
1734 i40e_put_mac_in_vlan(vsi
, mca
->addr
,
1737 i40e_add_filter(vsi
, mca
->addr
, I40E_VLAN_ANY
,
1742 /* remove filter if not in netdev list */
1743 list_for_each_entry_safe(f
, ftmp
, &vsi
->mac_filter_list
, list
) {
1748 netdev_for_each_mc_addr(mca
, netdev
)
1749 if (ether_addr_equal(mca
->addr
, f
->macaddr
))
1750 goto bottom_of_search_loop
;
1752 netdev_for_each_uc_addr(uca
, netdev
)
1753 if (ether_addr_equal(uca
->addr
, f
->macaddr
))
1754 goto bottom_of_search_loop
;
1756 for_each_dev_addr(netdev
, ha
)
1757 if (ether_addr_equal(ha
->addr
, f
->macaddr
))
1758 goto bottom_of_search_loop
;
1760 /* f->macaddr wasn't found in uc, mc, or ha list so delete it */
1761 i40e_del_filter(vsi
, f
->macaddr
, I40E_VLAN_ANY
, false, true);
1763 bottom_of_search_loop
:
1766 spin_unlock_bh(&vsi
->mac_filter_list_lock
);
1768 /* check for other flag changes */
1769 if (vsi
->current_netdev_flags
!= vsi
->netdev
->flags
) {
1770 vsi
->flags
|= I40E_VSI_FLAG_FILTER_CHANGED
;
1771 vsi
->back
->flags
|= I40E_FLAG_FILTER_SYNC
;
1774 /* schedule our worker thread which will take care of
1775 * applying the new filter changes
1777 i40e_service_event_schedule(vsi
->back
);
1781 * i40e_mac_filter_entry_clone - Clones a MAC filter entry
1782 * @src: source MAC filter entry to be clones
1784 * Returns the pointer to newly cloned MAC filter entry or NULL
1787 static struct i40e_mac_filter
*i40e_mac_filter_entry_clone(
1788 struct i40e_mac_filter
*src
)
1790 struct i40e_mac_filter
*f
;
1792 f
= kzalloc(sizeof(*f
), GFP_ATOMIC
);
1797 INIT_LIST_HEAD(&f
->list
);
1803 * i40e_undo_del_filter_entries - Undo the changes made to MAC filter entries
1804 * @vsi: pointer to vsi struct
1805 * @from: Pointer to list which contains MAC filter entries - changes to
1806 * those entries needs to be undone.
1808 * MAC filter entries from list were slated to be removed from device.
1810 static void i40e_undo_del_filter_entries(struct i40e_vsi
*vsi
,
1811 struct list_head
*from
)
1813 struct i40e_mac_filter
*f
, *ftmp
;
1815 list_for_each_entry_safe(f
, ftmp
, from
, list
) {
1817 /* Move the element back into MAC filter list*/
1818 list_move_tail(&f
->list
, &vsi
->mac_filter_list
);
1823 * i40e_undo_add_filter_entries - Undo the changes made to MAC filter entries
1824 * @vsi: pointer to vsi struct
1826 * MAC filter entries from list were slated to be added from device.
1828 static void i40e_undo_add_filter_entries(struct i40e_vsi
*vsi
)
1830 struct i40e_mac_filter
*f
, *ftmp
;
1832 list_for_each_entry_safe(f
, ftmp
, &vsi
->mac_filter_list
, list
) {
1833 if (!f
->changed
&& f
->counter
)
1839 * i40e_cleanup_add_list - Deletes the element from add list and release
1841 * @add_list: Pointer to list which contains MAC filter entries
1843 static void i40e_cleanup_add_list(struct list_head
*add_list
)
1845 struct i40e_mac_filter
*f
, *ftmp
;
1847 list_for_each_entry_safe(f
, ftmp
, add_list
, list
) {
1854 * i40e_sync_vsi_filters - Update the VSI filter list to the HW
1855 * @vsi: ptr to the VSI
1857 * Push any outstanding VSI filter changes through the AdminQ.
1859 * Returns 0 or error value
1861 int i40e_sync_vsi_filters(struct i40e_vsi
*vsi
)
1863 struct list_head tmp_del_list
, tmp_add_list
;
1864 struct i40e_mac_filter
*f
, *ftmp
, *fclone
;
1865 bool promisc_forced_on
= false;
1866 bool add_happened
= false;
1867 int filter_list_len
= 0;
1868 u32 changed_flags
= 0;
1869 i40e_status aq_ret
= 0;
1870 bool err_cond
= false;
1878 /* empty array typed pointers, kcalloc later */
1879 struct i40e_aqc_add_macvlan_element_data
*add_list
;
1880 struct i40e_aqc_remove_macvlan_element_data
*del_list
;
1882 while (test_and_set_bit(__I40E_CONFIG_BUSY
, &vsi
->state
))
1883 usleep_range(1000, 2000);
1887 changed_flags
= vsi
->current_netdev_flags
^ vsi
->netdev
->flags
;
1888 vsi
->current_netdev_flags
= vsi
->netdev
->flags
;
1891 INIT_LIST_HEAD(&tmp_del_list
);
1892 INIT_LIST_HEAD(&tmp_add_list
);
1894 if (vsi
->flags
& I40E_VSI_FLAG_FILTER_CHANGED
) {
1895 vsi
->flags
&= ~I40E_VSI_FLAG_FILTER_CHANGED
;
1897 spin_lock_bh(&vsi
->mac_filter_list_lock
);
1898 list_for_each_entry_safe(f
, ftmp
, &vsi
->mac_filter_list
, list
) {
1902 if (f
->counter
!= 0)
1906 /* Move the element into temporary del_list */
1907 list_move_tail(&f
->list
, &tmp_del_list
);
1910 list_for_each_entry_safe(f
, ftmp
, &vsi
->mac_filter_list
, list
) {
1914 if (f
->counter
== 0)
1918 /* Clone MAC filter entry and add into temporary list */
1919 fclone
= i40e_mac_filter_entry_clone(f
);
1924 list_add_tail(&fclone
->list
, &tmp_add_list
);
1927 /* if failed to clone MAC filter entry - undo */
1929 i40e_undo_del_filter_entries(vsi
, &tmp_del_list
);
1930 i40e_undo_add_filter_entries(vsi
);
1932 spin_unlock_bh(&vsi
->mac_filter_list_lock
);
1935 i40e_cleanup_add_list(&tmp_add_list
);
1941 /* Now process 'del_list' outside the lock */
1942 if (!list_empty(&tmp_del_list
)) {
1945 filter_list_len
= pf
->hw
.aq
.asq_buf_size
/
1946 sizeof(struct i40e_aqc_remove_macvlan_element_data
);
1947 del_list_size
= filter_list_len
*
1948 sizeof(struct i40e_aqc_remove_macvlan_element_data
);
1949 del_list
= kzalloc(del_list_size
, GFP_ATOMIC
);
1951 i40e_cleanup_add_list(&tmp_add_list
);
1953 /* Undo VSI's MAC filter entry element updates */
1954 spin_lock_bh(&vsi
->mac_filter_list_lock
);
1955 i40e_undo_del_filter_entries(vsi
, &tmp_del_list
);
1956 i40e_undo_add_filter_entries(vsi
);
1957 spin_unlock_bh(&vsi
->mac_filter_list_lock
);
1962 list_for_each_entry_safe(f
, ftmp
, &tmp_del_list
, list
) {
1965 /* add to delete list */
1966 ether_addr_copy(del_list
[num_del
].mac_addr
, f
->macaddr
);
1967 del_list
[num_del
].vlan_tag
=
1968 cpu_to_le16((u16
)(f
->vlan
==
1969 I40E_VLAN_ANY
? 0 : f
->vlan
));
1971 cmd_flags
|= I40E_AQC_MACVLAN_DEL_PERFECT_MATCH
;
1972 del_list
[num_del
].flags
= cmd_flags
;
1975 /* flush a full buffer */
1976 if (num_del
== filter_list_len
) {
1977 aq_ret
= i40e_aq_remove_macvlan(&pf
->hw
,
1982 aq_err
= pf
->hw
.aq
.asq_last_status
;
1984 memset(del_list
, 0, del_list_size
);
1986 if (aq_ret
&& aq_err
!= I40E_AQ_RC_ENOENT
) {
1988 dev_err(&pf
->pdev
->dev
,
1989 "ignoring delete macvlan error, err %s, aq_err %s while flushing a full buffer\n",
1990 i40e_stat_str(&pf
->hw
, aq_ret
),
1991 i40e_aq_str(&pf
->hw
, aq_err
));
1994 /* Release memory for MAC filter entries which were
1995 * synced up with HW.
2002 aq_ret
= i40e_aq_remove_macvlan(&pf
->hw
, vsi
->seid
,
2005 aq_err
= pf
->hw
.aq
.asq_last_status
;
2008 if (aq_ret
&& aq_err
!= I40E_AQ_RC_ENOENT
)
2009 dev_info(&pf
->pdev
->dev
,
2010 "ignoring delete macvlan error, err %s aq_err %s\n",
2011 i40e_stat_str(&pf
->hw
, aq_ret
),
2012 i40e_aq_str(&pf
->hw
, aq_err
));
2019 if (!list_empty(&tmp_add_list
)) {
2022 /* do all the adds now */
2023 filter_list_len
= pf
->hw
.aq
.asq_buf_size
/
2024 sizeof(struct i40e_aqc_add_macvlan_element_data
),
2025 add_list_size
= filter_list_len
*
2026 sizeof(struct i40e_aqc_add_macvlan_element_data
);
2027 add_list
= kzalloc(add_list_size
, GFP_ATOMIC
);
2029 /* Purge element from temporary lists */
2030 i40e_cleanup_add_list(&tmp_add_list
);
2032 /* Undo add filter entries from VSI MAC filter list */
2033 spin_lock_bh(&vsi
->mac_filter_list_lock
);
2034 i40e_undo_add_filter_entries(vsi
);
2035 spin_unlock_bh(&vsi
->mac_filter_list_lock
);
2040 list_for_each_entry_safe(f
, ftmp
, &tmp_add_list
, list
) {
2042 add_happened
= true;
2045 /* add to add array */
2046 ether_addr_copy(add_list
[num_add
].mac_addr
, f
->macaddr
);
2047 add_list
[num_add
].vlan_tag
=
2049 (u16
)(f
->vlan
== I40E_VLAN_ANY
? 0 : f
->vlan
));
2050 add_list
[num_add
].queue_number
= 0;
2052 cmd_flags
|= I40E_AQC_MACVLAN_ADD_PERFECT_MATCH
;
2053 add_list
[num_add
].flags
= cpu_to_le16(cmd_flags
);
2056 /* flush a full buffer */
2057 if (num_add
== filter_list_len
) {
2058 aq_ret
= i40e_aq_add_macvlan(&pf
->hw
, vsi
->seid
,
2061 aq_err
= pf
->hw
.aq
.asq_last_status
;
2066 memset(add_list
, 0, add_list_size
);
2068 /* Entries from tmp_add_list were cloned from MAC
2069 * filter list, hence clean those cloned entries
2076 aq_ret
= i40e_aq_add_macvlan(&pf
->hw
, vsi
->seid
,
2077 add_list
, num_add
, NULL
);
2078 aq_err
= pf
->hw
.aq
.asq_last_status
;
2084 if (add_happened
&& aq_ret
&& aq_err
!= I40E_AQ_RC_EINVAL
) {
2085 retval
= i40e_aq_rc_to_posix(aq_ret
, aq_err
);
2086 dev_info(&pf
->pdev
->dev
,
2087 "add filter failed, err %s aq_err %s\n",
2088 i40e_stat_str(&pf
->hw
, aq_ret
),
2089 i40e_aq_str(&pf
->hw
, aq_err
));
2090 if ((pf
->hw
.aq
.asq_last_status
== I40E_AQ_RC_ENOSPC
) &&
2091 !test_bit(__I40E_FILTER_OVERFLOW_PROMISC
,
2093 promisc_forced_on
= true;
2094 set_bit(__I40E_FILTER_OVERFLOW_PROMISC
,
2096 dev_info(&pf
->pdev
->dev
, "promiscuous mode forced on\n");
2101 /* check for changes in promiscuous modes */
2102 if (changed_flags
& IFF_ALLMULTI
) {
2103 bool cur_multipromisc
;
2105 cur_multipromisc
= !!(vsi
->current_netdev_flags
& IFF_ALLMULTI
);
2106 aq_ret
= i40e_aq_set_vsi_multicast_promiscuous(&vsi
->back
->hw
,
2111 retval
= i40e_aq_rc_to_posix(aq_ret
,
2112 pf
->hw
.aq
.asq_last_status
);
2113 dev_info(&pf
->pdev
->dev
,
2114 "set multi promisc failed, err %s aq_err %s\n",
2115 i40e_stat_str(&pf
->hw
, aq_ret
),
2116 i40e_aq_str(&pf
->hw
,
2117 pf
->hw
.aq
.asq_last_status
));
2120 if ((changed_flags
& IFF_PROMISC
) || promisc_forced_on
) {
2123 cur_promisc
= (!!(vsi
->current_netdev_flags
& IFF_PROMISC
) ||
2124 test_bit(__I40E_FILTER_OVERFLOW_PROMISC
,
2126 if ((vsi
->type
== I40E_VSI_MAIN
) &&
2127 (pf
->lan_veb
!= I40E_NO_VEB
) &&
2128 !(pf
->flags
& I40E_FLAG_MFP_ENABLED
)) {
2129 /* set defport ON for Main VSI instead of true promisc
2130 * this way we will get all unicast/multicast and VLAN
2131 * promisc behavior but will not get VF or VMDq traffic
2132 * replicated on the Main VSI.
2134 if (pf
->cur_promisc
!= cur_promisc
) {
2135 pf
->cur_promisc
= cur_promisc
;
2136 set_bit(__I40E_PF_RESET_REQUESTED
, &pf
->state
);
2139 aq_ret
= i40e_aq_set_vsi_unicast_promiscuous(
2145 i40e_aq_rc_to_posix(aq_ret
,
2146 pf
->hw
.aq
.asq_last_status
);
2147 dev_info(&pf
->pdev
->dev
,
2148 "set unicast promisc failed, err %d, aq_err %d\n",
2149 aq_ret
, pf
->hw
.aq
.asq_last_status
);
2151 aq_ret
= i40e_aq_set_vsi_multicast_promiscuous(
2157 i40e_aq_rc_to_posix(aq_ret
,
2158 pf
->hw
.aq
.asq_last_status
);
2159 dev_info(&pf
->pdev
->dev
,
2160 "set multicast promisc failed, err %d, aq_err %d\n",
2161 aq_ret
, pf
->hw
.aq
.asq_last_status
);
2164 aq_ret
= i40e_aq_set_vsi_broadcast(&vsi
->back
->hw
,
2168 retval
= i40e_aq_rc_to_posix(aq_ret
,
2169 pf
->hw
.aq
.asq_last_status
);
2170 dev_info(&pf
->pdev
->dev
,
2171 "set brdcast promisc failed, err %s, aq_err %s\n",
2172 i40e_stat_str(&pf
->hw
, aq_ret
),
2173 i40e_aq_str(&pf
->hw
,
2174 pf
->hw
.aq
.asq_last_status
));
2178 /* if something went wrong then set the changed flag so we try again */
2180 vsi
->flags
|= I40E_VSI_FLAG_FILTER_CHANGED
;
2182 clear_bit(__I40E_CONFIG_BUSY
, &vsi
->state
);
2187 * i40e_sync_filters_subtask - Sync the VSI filter list with HW
2188 * @pf: board private structure
2190 static void i40e_sync_filters_subtask(struct i40e_pf
*pf
)
2194 if (!pf
|| !(pf
->flags
& I40E_FLAG_FILTER_SYNC
))
2196 pf
->flags
&= ~I40E_FLAG_FILTER_SYNC
;
2198 for (v
= 0; v
< pf
->num_alloc_vsi
; v
++) {
2200 (pf
->vsi
[v
]->flags
& I40E_VSI_FLAG_FILTER_CHANGED
)) {
2201 int ret
= i40e_sync_vsi_filters(pf
->vsi
[v
]);
2204 /* come back and try again later */
2205 pf
->flags
|= I40E_FLAG_FILTER_SYNC
;
2213 * i40e_change_mtu - NDO callback to change the Maximum Transfer Unit
2214 * @netdev: network interface device structure
2215 * @new_mtu: new value for maximum frame size
2217 * Returns 0 on success, negative on failure
2219 static int i40e_change_mtu(struct net_device
*netdev
, int new_mtu
)
2221 struct i40e_netdev_priv
*np
= netdev_priv(netdev
);
2222 int max_frame
= new_mtu
+ ETH_HLEN
+ ETH_FCS_LEN
+ VLAN_HLEN
;
2223 struct i40e_vsi
*vsi
= np
->vsi
;
2225 /* MTU < 68 is an error and causes problems on some kernels */
2226 if ((new_mtu
< 68) || (max_frame
> I40E_MAX_RXBUFFER
))
2229 netdev_info(netdev
, "changing MTU from %d to %d\n",
2230 netdev
->mtu
, new_mtu
);
2231 netdev
->mtu
= new_mtu
;
2232 if (netif_running(netdev
))
2233 i40e_vsi_reinit_locked(vsi
);
2234 i40e_notify_client_of_l2_param_changes(vsi
);
2239 * i40e_ioctl - Access the hwtstamp interface
2240 * @netdev: network interface device structure
2241 * @ifr: interface request data
2242 * @cmd: ioctl command
2244 int i40e_ioctl(struct net_device
*netdev
, struct ifreq
*ifr
, int cmd
)
2246 struct i40e_netdev_priv
*np
= netdev_priv(netdev
);
2247 struct i40e_pf
*pf
= np
->vsi
->back
;
2251 return i40e_ptp_get_ts_config(pf
, ifr
);
2253 return i40e_ptp_set_ts_config(pf
, ifr
);
2260 * i40e_vlan_stripping_enable - Turn on vlan stripping for the VSI
2261 * @vsi: the vsi being adjusted
2263 void i40e_vlan_stripping_enable(struct i40e_vsi
*vsi
)
2265 struct i40e_vsi_context ctxt
;
2268 if ((vsi
->info
.valid_sections
&
2269 cpu_to_le16(I40E_AQ_VSI_PROP_VLAN_VALID
)) &&
2270 ((vsi
->info
.port_vlan_flags
& I40E_AQ_VSI_PVLAN_MODE_MASK
) == 0))
2271 return; /* already enabled */
2273 vsi
->info
.valid_sections
= cpu_to_le16(I40E_AQ_VSI_PROP_VLAN_VALID
);
2274 vsi
->info
.port_vlan_flags
= I40E_AQ_VSI_PVLAN_MODE_ALL
|
2275 I40E_AQ_VSI_PVLAN_EMOD_STR_BOTH
;
2277 ctxt
.seid
= vsi
->seid
;
2278 ctxt
.info
= vsi
->info
;
2279 ret
= i40e_aq_update_vsi_params(&vsi
->back
->hw
, &ctxt
, NULL
);
2281 dev_info(&vsi
->back
->pdev
->dev
,
2282 "update vlan stripping failed, err %s aq_err %s\n",
2283 i40e_stat_str(&vsi
->back
->hw
, ret
),
2284 i40e_aq_str(&vsi
->back
->hw
,
2285 vsi
->back
->hw
.aq
.asq_last_status
));
2290 * i40e_vlan_stripping_disable - Turn off vlan stripping for the VSI
2291 * @vsi: the vsi being adjusted
2293 void i40e_vlan_stripping_disable(struct i40e_vsi
*vsi
)
2295 struct i40e_vsi_context ctxt
;
2298 if ((vsi
->info
.valid_sections
&
2299 cpu_to_le16(I40E_AQ_VSI_PROP_VLAN_VALID
)) &&
2300 ((vsi
->info
.port_vlan_flags
& I40E_AQ_VSI_PVLAN_EMOD_MASK
) ==
2301 I40E_AQ_VSI_PVLAN_EMOD_MASK
))
2302 return; /* already disabled */
2304 vsi
->info
.valid_sections
= cpu_to_le16(I40E_AQ_VSI_PROP_VLAN_VALID
);
2305 vsi
->info
.port_vlan_flags
= I40E_AQ_VSI_PVLAN_MODE_ALL
|
2306 I40E_AQ_VSI_PVLAN_EMOD_NOTHING
;
2308 ctxt
.seid
= vsi
->seid
;
2309 ctxt
.info
= vsi
->info
;
2310 ret
= i40e_aq_update_vsi_params(&vsi
->back
->hw
, &ctxt
, NULL
);
2312 dev_info(&vsi
->back
->pdev
->dev
,
2313 "update vlan stripping failed, err %s aq_err %s\n",
2314 i40e_stat_str(&vsi
->back
->hw
, ret
),
2315 i40e_aq_str(&vsi
->back
->hw
,
2316 vsi
->back
->hw
.aq
.asq_last_status
));
2321 * i40e_vlan_rx_register - Setup or shutdown vlan offload
2322 * @netdev: network interface to be adjusted
2323 * @features: netdev features to test if VLAN offload is enabled or not
2325 static void i40e_vlan_rx_register(struct net_device
*netdev
, u32 features
)
2327 struct i40e_netdev_priv
*np
= netdev_priv(netdev
);
2328 struct i40e_vsi
*vsi
= np
->vsi
;
2330 if (features
& NETIF_F_HW_VLAN_CTAG_RX
)
2331 i40e_vlan_stripping_enable(vsi
);
2333 i40e_vlan_stripping_disable(vsi
);
2337 * i40e_vsi_add_vlan - Add vsi membership for given vlan
2338 * @vsi: the vsi being configured
2339 * @vid: vlan id to be added (0 = untagged only , -1 = any)
2341 int i40e_vsi_add_vlan(struct i40e_vsi
*vsi
, s16 vid
)
2343 struct i40e_mac_filter
*f
, *add_f
;
2344 bool is_netdev
, is_vf
;
2346 is_vf
= (vsi
->type
== I40E_VSI_SRIOV
);
2347 is_netdev
= !!(vsi
->netdev
);
2349 /* Locked once because all functions invoked below iterates list*/
2350 spin_lock_bh(&vsi
->mac_filter_list_lock
);
2353 add_f
= i40e_add_filter(vsi
, vsi
->netdev
->dev_addr
, vid
,
2356 dev_info(&vsi
->back
->pdev
->dev
,
2357 "Could not add vlan filter %d for %pM\n",
2358 vid
, vsi
->netdev
->dev_addr
);
2359 spin_unlock_bh(&vsi
->mac_filter_list_lock
);
2364 list_for_each_entry(f
, &vsi
->mac_filter_list
, list
) {
2365 add_f
= i40e_add_filter(vsi
, f
->macaddr
, vid
, is_vf
, is_netdev
);
2367 dev_info(&vsi
->back
->pdev
->dev
,
2368 "Could not add vlan filter %d for %pM\n",
2370 spin_unlock_bh(&vsi
->mac_filter_list_lock
);
2375 /* Now if we add a vlan tag, make sure to check if it is the first
2376 * tag (i.e. a "tag" -1 does exist) and if so replace the -1 "tag"
2377 * with 0, so we now accept untagged and specified tagged traffic
2378 * (and not any taged and untagged)
2381 if (is_netdev
&& i40e_find_filter(vsi
, vsi
->netdev
->dev_addr
,
2383 is_vf
, is_netdev
)) {
2384 i40e_del_filter(vsi
, vsi
->netdev
->dev_addr
,
2385 I40E_VLAN_ANY
, is_vf
, is_netdev
);
2386 add_f
= i40e_add_filter(vsi
, vsi
->netdev
->dev_addr
, 0,
2389 dev_info(&vsi
->back
->pdev
->dev
,
2390 "Could not add filter 0 for %pM\n",
2391 vsi
->netdev
->dev_addr
);
2392 spin_unlock_bh(&vsi
->mac_filter_list_lock
);
2398 /* Do not assume that I40E_VLAN_ANY should be reset to VLAN 0 */
2399 if (vid
> 0 && !vsi
->info
.pvid
) {
2400 list_for_each_entry(f
, &vsi
->mac_filter_list
, list
) {
2401 if (!i40e_find_filter(vsi
, f
->macaddr
, I40E_VLAN_ANY
,
2404 i40e_del_filter(vsi
, f
->macaddr
, I40E_VLAN_ANY
,
2406 add_f
= i40e_add_filter(vsi
, f
->macaddr
,
2407 0, is_vf
, is_netdev
);
2409 dev_info(&vsi
->back
->pdev
->dev
,
2410 "Could not add filter 0 for %pM\n",
2412 spin_unlock_bh(&vsi
->mac_filter_list_lock
);
2418 spin_unlock_bh(&vsi
->mac_filter_list_lock
);
2420 /* schedule our worker thread which will take care of
2421 * applying the new filter changes
2423 i40e_service_event_schedule(vsi
->back
);
2428 * i40e_vsi_kill_vlan - Remove vsi membership for given vlan
2429 * @vsi: the vsi being configured
2430 * @vid: vlan id to be removed (0 = untagged only , -1 = any)
2432 * Return: 0 on success or negative otherwise
2434 int i40e_vsi_kill_vlan(struct i40e_vsi
*vsi
, s16 vid
)
2436 struct net_device
*netdev
= vsi
->netdev
;
2437 struct i40e_mac_filter
*f
, *add_f
;
2438 bool is_vf
, is_netdev
;
2439 int filter_count
= 0;
2441 is_vf
= (vsi
->type
== I40E_VSI_SRIOV
);
2442 is_netdev
= !!(netdev
);
2444 /* Locked once because all functions invoked below iterates list */
2445 spin_lock_bh(&vsi
->mac_filter_list_lock
);
2448 i40e_del_filter(vsi
, netdev
->dev_addr
, vid
, is_vf
, is_netdev
);
2450 list_for_each_entry(f
, &vsi
->mac_filter_list
, list
)
2451 i40e_del_filter(vsi
, f
->macaddr
, vid
, is_vf
, is_netdev
);
2453 /* go through all the filters for this VSI and if there is only
2454 * vid == 0 it means there are no other filters, so vid 0 must
2455 * be replaced with -1. This signifies that we should from now
2456 * on accept any traffic (with any tag present, or untagged)
2458 list_for_each_entry(f
, &vsi
->mac_filter_list
, list
) {
2461 ether_addr_equal(netdev
->dev_addr
, f
->macaddr
))
2469 if (!filter_count
&& is_netdev
) {
2470 i40e_del_filter(vsi
, netdev
->dev_addr
, 0, is_vf
, is_netdev
);
2471 f
= i40e_add_filter(vsi
, netdev
->dev_addr
, I40E_VLAN_ANY
,
2474 dev_info(&vsi
->back
->pdev
->dev
,
2475 "Could not add filter %d for %pM\n",
2476 I40E_VLAN_ANY
, netdev
->dev_addr
);
2477 spin_unlock_bh(&vsi
->mac_filter_list_lock
);
2482 if (!filter_count
) {
2483 list_for_each_entry(f
, &vsi
->mac_filter_list
, list
) {
2484 i40e_del_filter(vsi
, f
->macaddr
, 0, is_vf
, is_netdev
);
2485 add_f
= i40e_add_filter(vsi
, f
->macaddr
, I40E_VLAN_ANY
,
2488 dev_info(&vsi
->back
->pdev
->dev
,
2489 "Could not add filter %d for %pM\n",
2490 I40E_VLAN_ANY
, f
->macaddr
);
2491 spin_unlock_bh(&vsi
->mac_filter_list_lock
);
2497 spin_unlock_bh(&vsi
->mac_filter_list_lock
);
2499 /* schedule our worker thread which will take care of
2500 * applying the new filter changes
2502 i40e_service_event_schedule(vsi
->back
);
2507 * i40e_vlan_rx_add_vid - Add a vlan id filter to HW offload
2508 * @netdev: network interface to be adjusted
2509 * @vid: vlan id to be added
2511 * net_device_ops implementation for adding vlan ids
2514 int i40e_vlan_rx_add_vid(struct net_device
*netdev
,
2515 __always_unused __be16 proto
, u16 vid
)
2517 static int i40e_vlan_rx_add_vid(struct net_device
*netdev
,
2518 __always_unused __be16 proto
, u16 vid
)
2521 struct i40e_netdev_priv
*np
= netdev_priv(netdev
);
2522 struct i40e_vsi
*vsi
= np
->vsi
;
2528 netdev_info(netdev
, "adding %pM vid=%d\n", netdev
->dev_addr
, vid
);
2530 /* If the network stack called us with vid = 0 then
2531 * it is asking to receive priority tagged packets with
2532 * vlan id 0. Our HW receives them by default when configured
2533 * to receive untagged packets so there is no need to add an
2534 * extra filter for vlan 0 tagged packets.
2537 ret
= i40e_vsi_add_vlan(vsi
, vid
);
2539 if (!ret
&& (vid
< VLAN_N_VID
))
2540 set_bit(vid
, vsi
->active_vlans
);
2546 * i40e_vlan_rx_kill_vid - Remove a vlan id filter from HW offload
2547 * @netdev: network interface to be adjusted
2548 * @vid: vlan id to be removed
2550 * net_device_ops implementation for removing vlan ids
2553 int i40e_vlan_rx_kill_vid(struct net_device
*netdev
,
2554 __always_unused __be16 proto
, u16 vid
)
2556 static int i40e_vlan_rx_kill_vid(struct net_device
*netdev
,
2557 __always_unused __be16 proto
, u16 vid
)
2560 struct i40e_netdev_priv
*np
= netdev_priv(netdev
);
2561 struct i40e_vsi
*vsi
= np
->vsi
;
2563 netdev_info(netdev
, "removing %pM vid=%d\n", netdev
->dev_addr
, vid
);
2565 /* return code is ignored as there is nothing a user
2566 * can do about failure to remove and a log message was
2567 * already printed from the other function
2569 i40e_vsi_kill_vlan(vsi
, vid
);
2571 clear_bit(vid
, vsi
->active_vlans
);
2577 * i40e_restore_vlan - Reinstate vlans when vsi/netdev comes back up
2578 * @vsi: the vsi being brought back up
2580 static void i40e_restore_vlan(struct i40e_vsi
*vsi
)
2587 i40e_vlan_rx_register(vsi
->netdev
, vsi
->netdev
->features
);
2589 for_each_set_bit(vid
, vsi
->active_vlans
, VLAN_N_VID
)
2590 i40e_vlan_rx_add_vid(vsi
->netdev
, htons(ETH_P_8021Q
),
2595 * i40e_vsi_add_pvid - Add pvid for the VSI
2596 * @vsi: the vsi being adjusted
2597 * @vid: the vlan id to set as a PVID
2599 int i40e_vsi_add_pvid(struct i40e_vsi
*vsi
, u16 vid
)
2601 struct i40e_vsi_context ctxt
;
2604 vsi
->info
.valid_sections
= cpu_to_le16(I40E_AQ_VSI_PROP_VLAN_VALID
);
2605 vsi
->info
.pvid
= cpu_to_le16(vid
);
2606 vsi
->info
.port_vlan_flags
= I40E_AQ_VSI_PVLAN_MODE_TAGGED
|
2607 I40E_AQ_VSI_PVLAN_INSERT_PVID
|
2608 I40E_AQ_VSI_PVLAN_EMOD_STR
;
2610 ctxt
.seid
= vsi
->seid
;
2611 ctxt
.info
= vsi
->info
;
2612 ret
= i40e_aq_update_vsi_params(&vsi
->back
->hw
, &ctxt
, NULL
);
2614 dev_info(&vsi
->back
->pdev
->dev
,
2615 "add pvid failed, err %s aq_err %s\n",
2616 i40e_stat_str(&vsi
->back
->hw
, ret
),
2617 i40e_aq_str(&vsi
->back
->hw
,
2618 vsi
->back
->hw
.aq
.asq_last_status
));
2626 * i40e_vsi_remove_pvid - Remove the pvid from the VSI
2627 * @vsi: the vsi being adjusted
2629 * Just use the vlan_rx_register() service to put it back to normal
2631 void i40e_vsi_remove_pvid(struct i40e_vsi
*vsi
)
2633 i40e_vlan_stripping_disable(vsi
);
2639 * i40e_vsi_setup_tx_resources - Allocate VSI Tx queue resources
2640 * @vsi: ptr to the VSI
2642 * If this function returns with an error, then it's possible one or
2643 * more of the rings is populated (while the rest are not). It is the
2644 * callers duty to clean those orphaned rings.
2646 * Return 0 on success, negative on failure
2648 static int i40e_vsi_setup_tx_resources(struct i40e_vsi
*vsi
)
2652 for (i
= 0; i
< vsi
->num_queue_pairs
&& !err
; i
++)
2653 err
= i40e_setup_tx_descriptors(vsi
->tx_rings
[i
]);
2659 * i40e_vsi_free_tx_resources - Free Tx resources for VSI queues
2660 * @vsi: ptr to the VSI
2662 * Free VSI's transmit software resources
2664 static void i40e_vsi_free_tx_resources(struct i40e_vsi
*vsi
)
2671 for (i
= 0; i
< vsi
->num_queue_pairs
; i
++)
2672 if (vsi
->tx_rings
[i
] && vsi
->tx_rings
[i
]->desc
)
2673 i40e_free_tx_resources(vsi
->tx_rings
[i
]);
2677 * i40e_vsi_setup_rx_resources - Allocate VSI queues Rx resources
2678 * @vsi: ptr to the VSI
2680 * If this function returns with an error, then it's possible one or
2681 * more of the rings is populated (while the rest are not). It is the
2682 * callers duty to clean those orphaned rings.
2684 * Return 0 on success, negative on failure
2686 static int i40e_vsi_setup_rx_resources(struct i40e_vsi
*vsi
)
2690 for (i
= 0; i
< vsi
->num_queue_pairs
&& !err
; i
++)
2691 err
= i40e_setup_rx_descriptors(vsi
->rx_rings
[i
]);
2693 i40e_fcoe_setup_ddp_resources(vsi
);
2699 * i40e_vsi_free_rx_resources - Free Rx Resources for VSI queues
2700 * @vsi: ptr to the VSI
2702 * Free all receive software resources
2704 static void i40e_vsi_free_rx_resources(struct i40e_vsi
*vsi
)
2711 for (i
= 0; i
< vsi
->num_queue_pairs
; i
++)
2712 if (vsi
->rx_rings
[i
] && vsi
->rx_rings
[i
]->desc
)
2713 i40e_free_rx_resources(vsi
->rx_rings
[i
]);
2715 i40e_fcoe_free_ddp_resources(vsi
);
2720 * i40e_config_xps_tx_ring - Configure XPS for a Tx ring
2721 * @ring: The Tx ring to configure
2723 * This enables/disables XPS for a given Tx descriptor ring
2724 * based on the TCs enabled for the VSI that ring belongs to.
2726 static void i40e_config_xps_tx_ring(struct i40e_ring
*ring
)
2728 struct i40e_vsi
*vsi
= ring
->vsi
;
2731 if (!ring
->q_vector
|| !ring
->netdev
)
2734 /* Single TC mode enable XPS */
2735 if (vsi
->tc_config
.numtc
<= 1) {
2736 if (!test_and_set_bit(__I40E_TX_XPS_INIT_DONE
, &ring
->state
))
2737 netif_set_xps_queue(ring
->netdev
,
2738 &ring
->q_vector
->affinity_mask
,
2740 } else if (alloc_cpumask_var(&mask
, GFP_KERNEL
)) {
2741 /* Disable XPS to allow selection based on TC */
2742 bitmap_zero(cpumask_bits(mask
), nr_cpumask_bits
);
2743 netif_set_xps_queue(ring
->netdev
, mask
, ring
->queue_index
);
2744 free_cpumask_var(mask
);
2747 /* schedule our worker thread which will take care of
2748 * applying the new filter changes
2750 i40e_service_event_schedule(vsi
->back
);
2754 * i40e_configure_tx_ring - Configure a transmit ring context and rest
2755 * @ring: The Tx ring to configure
2757 * Configure the Tx descriptor ring in the HMC context.
2759 static int i40e_configure_tx_ring(struct i40e_ring
*ring
)
2761 struct i40e_vsi
*vsi
= ring
->vsi
;
2762 u16 pf_q
= vsi
->base_queue
+ ring
->queue_index
;
2763 struct i40e_hw
*hw
= &vsi
->back
->hw
;
2764 struct i40e_hmc_obj_txq tx_ctx
;
2765 i40e_status err
= 0;
2768 /* some ATR related tx ring init */
2769 if (vsi
->back
->flags
& I40E_FLAG_FD_ATR_ENABLED
) {
2770 ring
->atr_sample_rate
= vsi
->back
->atr_sample_rate
;
2771 ring
->atr_count
= 0;
2773 ring
->atr_sample_rate
= 0;
2777 i40e_config_xps_tx_ring(ring
);
2779 /* clear the context structure first */
2780 memset(&tx_ctx
, 0, sizeof(tx_ctx
));
2782 tx_ctx
.new_context
= 1;
2783 tx_ctx
.base
= (ring
->dma
/ 128);
2784 tx_ctx
.qlen
= ring
->count
;
2785 tx_ctx
.fd_ena
= !!(vsi
->back
->flags
& (I40E_FLAG_FD_SB_ENABLED
|
2786 I40E_FLAG_FD_ATR_ENABLED
));
2788 tx_ctx
.fc_ena
= (vsi
->type
== I40E_VSI_FCOE
);
2790 tx_ctx
.timesync_ena
= !!(vsi
->back
->flags
& I40E_FLAG_PTP
);
2791 /* FDIR VSI tx ring can still use RS bit and writebacks */
2792 if (vsi
->type
!= I40E_VSI_FDIR
)
2793 tx_ctx
.head_wb_ena
= 1;
2794 tx_ctx
.head_wb_addr
= ring
->dma
+
2795 (ring
->count
* sizeof(struct i40e_tx_desc
));
2797 /* As part of VSI creation/update, FW allocates certain
2798 * Tx arbitration queue sets for each TC enabled for
2799 * the VSI. The FW returns the handles to these queue
2800 * sets as part of the response buffer to Add VSI,
2801 * Update VSI, etc. AQ commands. It is expected that
2802 * these queue set handles be associated with the Tx
2803 * queues by the driver as part of the TX queue context
2804 * initialization. This has to be done regardless of
2805 * DCB as by default everything is mapped to TC0.
2807 tx_ctx
.rdylist
= le16_to_cpu(vsi
->info
.qs_handle
[ring
->dcb_tc
]);
2808 tx_ctx
.rdylist_act
= 0;
2810 /* clear the context in the HMC */
2811 err
= i40e_clear_lan_tx_queue_context(hw
, pf_q
);
2813 dev_info(&vsi
->back
->pdev
->dev
,
2814 "Failed to clear LAN Tx queue context on Tx ring %d (pf_q %d), error: %d\n",
2815 ring
->queue_index
, pf_q
, err
);
2819 /* set the context in the HMC */
2820 err
= i40e_set_lan_tx_queue_context(hw
, pf_q
, &tx_ctx
);
2822 dev_info(&vsi
->back
->pdev
->dev
,
2823 "Failed to set LAN Tx queue context on Tx ring %d (pf_q %d, error: %d\n",
2824 ring
->queue_index
, pf_q
, err
);
2828 /* Now associate this queue with this PCI function */
2829 if (vsi
->type
== I40E_VSI_VMDQ2
) {
2830 qtx_ctl
= I40E_QTX_CTL_VM_QUEUE
;
2831 qtx_ctl
|= ((vsi
->id
) << I40E_QTX_CTL_VFVM_INDX_SHIFT
) &
2832 I40E_QTX_CTL_VFVM_INDX_MASK
;
2834 qtx_ctl
= I40E_QTX_CTL_PF_QUEUE
;
2837 qtx_ctl
|= ((hw
->pf_id
<< I40E_QTX_CTL_PF_INDX_SHIFT
) &
2838 I40E_QTX_CTL_PF_INDX_MASK
);
2839 wr32(hw
, I40E_QTX_CTL(pf_q
), qtx_ctl
);
2842 /* cache tail off for easier writes later */
2843 ring
->tail
= hw
->hw_addr
+ I40E_QTX_TAIL(pf_q
);
2849 * i40e_configure_rx_ring - Configure a receive ring context
2850 * @ring: The Rx ring to configure
2852 * Configure the Rx descriptor ring in the HMC context.
2854 static int i40e_configure_rx_ring(struct i40e_ring
*ring
)
2856 struct i40e_vsi
*vsi
= ring
->vsi
;
2857 u32 chain_len
= vsi
->back
->hw
.func_caps
.rx_buf_chain_len
;
2858 u16 pf_q
= vsi
->base_queue
+ ring
->queue_index
;
2859 struct i40e_hw
*hw
= &vsi
->back
->hw
;
2860 struct i40e_hmc_obj_rxq rx_ctx
;
2861 i40e_status err
= 0;
2865 /* clear the context structure first */
2866 memset(&rx_ctx
, 0, sizeof(rx_ctx
));
2868 ring
->rx_buf_len
= vsi
->rx_buf_len
;
2869 ring
->rx_hdr_len
= vsi
->rx_hdr_len
;
2871 rx_ctx
.dbuff
= ring
->rx_buf_len
>> I40E_RXQ_CTX_DBUFF_SHIFT
;
2872 rx_ctx
.hbuff
= ring
->rx_hdr_len
>> I40E_RXQ_CTX_HBUFF_SHIFT
;
2874 rx_ctx
.base
= (ring
->dma
/ 128);
2875 rx_ctx
.qlen
= ring
->count
;
2877 if (vsi
->back
->flags
& I40E_FLAG_16BYTE_RX_DESC_ENABLED
) {
2878 set_ring_16byte_desc_enabled(ring
);
2884 rx_ctx
.dtype
= vsi
->dtype
;
2886 set_ring_ps_enabled(ring
);
2887 rx_ctx
.hsplit_0
= I40E_RX_SPLIT_L2
|
2889 I40E_RX_SPLIT_TCP_UDP
|
2892 rx_ctx
.hsplit_0
= 0;
2895 rx_ctx
.rxmax
= min_t(u16
, vsi
->max_frame
,
2896 (chain_len
* ring
->rx_buf_len
));
2897 if (hw
->revision_id
== 0)
2898 rx_ctx
.lrxqthresh
= 0;
2900 rx_ctx
.lrxqthresh
= 2;
2901 rx_ctx
.crcstrip
= 1;
2903 /* this controls whether VLAN is stripped from inner headers */
2906 rx_ctx
.fc_ena
= (vsi
->type
== I40E_VSI_FCOE
);
2908 /* set the prefena field to 1 because the manual says to */
2911 /* clear the context in the HMC */
2912 err
= i40e_clear_lan_rx_queue_context(hw
, pf_q
);
2914 dev_info(&vsi
->back
->pdev
->dev
,
2915 "Failed to clear LAN Rx queue context on Rx ring %d (pf_q %d), error: %d\n",
2916 ring
->queue_index
, pf_q
, err
);
2920 /* set the context in the HMC */
2921 err
= i40e_set_lan_rx_queue_context(hw
, pf_q
, &rx_ctx
);
2923 dev_info(&vsi
->back
->pdev
->dev
,
2924 "Failed to set LAN Rx queue context on Rx ring %d (pf_q %d), error: %d\n",
2925 ring
->queue_index
, pf_q
, err
);
2929 /* cache tail for quicker writes, and clear the reg before use */
2930 ring
->tail
= hw
->hw_addr
+ I40E_QRX_TAIL(pf_q
);
2931 writel(0, ring
->tail
);
2933 if (ring_is_ps_enabled(ring
)) {
2934 i40e_alloc_rx_headers(ring
);
2935 i40e_alloc_rx_buffers_ps(ring
, I40E_DESC_UNUSED(ring
));
2937 i40e_alloc_rx_buffers_1buf(ring
, I40E_DESC_UNUSED(ring
));
2944 * i40e_vsi_configure_tx - Configure the VSI for Tx
2945 * @vsi: VSI structure describing this set of rings and resources
2947 * Configure the Tx VSI for operation.
2949 static int i40e_vsi_configure_tx(struct i40e_vsi
*vsi
)
2954 for (i
= 0; (i
< vsi
->num_queue_pairs
) && !err
; i
++)
2955 err
= i40e_configure_tx_ring(vsi
->tx_rings
[i
]);
2961 * i40e_vsi_configure_rx - Configure the VSI for Rx
2962 * @vsi: the VSI being configured
2964 * Configure the Rx VSI for operation.
2966 static int i40e_vsi_configure_rx(struct i40e_vsi
*vsi
)
2971 if (vsi
->netdev
&& (vsi
->netdev
->mtu
> ETH_DATA_LEN
))
2972 vsi
->max_frame
= vsi
->netdev
->mtu
+ ETH_HLEN
2973 + ETH_FCS_LEN
+ VLAN_HLEN
;
2975 vsi
->max_frame
= I40E_RXBUFFER_2048
;
2977 /* figure out correct receive buffer length */
2978 switch (vsi
->back
->flags
& (I40E_FLAG_RX_1BUF_ENABLED
|
2979 I40E_FLAG_RX_PS_ENABLED
)) {
2980 case I40E_FLAG_RX_1BUF_ENABLED
:
2981 vsi
->rx_hdr_len
= 0;
2982 vsi
->rx_buf_len
= vsi
->max_frame
;
2983 vsi
->dtype
= I40E_RX_DTYPE_NO_SPLIT
;
2985 case I40E_FLAG_RX_PS_ENABLED
:
2986 vsi
->rx_hdr_len
= I40E_RX_HDR_SIZE
;
2987 vsi
->rx_buf_len
= I40E_RXBUFFER_2048
;
2988 vsi
->dtype
= I40E_RX_DTYPE_HEADER_SPLIT
;
2991 vsi
->rx_hdr_len
= I40E_RX_HDR_SIZE
;
2992 vsi
->rx_buf_len
= I40E_RXBUFFER_2048
;
2993 vsi
->dtype
= I40E_RX_DTYPE_SPLIT_ALWAYS
;
2998 /* setup rx buffer for FCoE */
2999 if ((vsi
->type
== I40E_VSI_FCOE
) &&
3000 (vsi
->back
->flags
& I40E_FLAG_FCOE_ENABLED
)) {
3001 vsi
->rx_hdr_len
= 0;
3002 vsi
->rx_buf_len
= I40E_RXBUFFER_3072
;
3003 vsi
->max_frame
= I40E_RXBUFFER_3072
;
3004 vsi
->dtype
= I40E_RX_DTYPE_NO_SPLIT
;
3007 #endif /* I40E_FCOE */
3008 /* round up for the chip's needs */
3009 vsi
->rx_hdr_len
= ALIGN(vsi
->rx_hdr_len
,
3010 BIT_ULL(I40E_RXQ_CTX_HBUFF_SHIFT
));
3011 vsi
->rx_buf_len
= ALIGN(vsi
->rx_buf_len
,
3012 BIT_ULL(I40E_RXQ_CTX_DBUFF_SHIFT
));
3014 /* set up individual rings */
3015 for (i
= 0; i
< vsi
->num_queue_pairs
&& !err
; i
++)
3016 err
= i40e_configure_rx_ring(vsi
->rx_rings
[i
]);
3022 * i40e_vsi_config_dcb_rings - Update rings to reflect DCB TC
3023 * @vsi: ptr to the VSI
3025 static void i40e_vsi_config_dcb_rings(struct i40e_vsi
*vsi
)
3027 struct i40e_ring
*tx_ring
, *rx_ring
;
3028 u16 qoffset
, qcount
;
3031 if (!(vsi
->back
->flags
& I40E_FLAG_DCB_ENABLED
)) {
3032 /* Reset the TC information */
3033 for (i
= 0; i
< vsi
->num_queue_pairs
; i
++) {
3034 rx_ring
= vsi
->rx_rings
[i
];
3035 tx_ring
= vsi
->tx_rings
[i
];
3036 rx_ring
->dcb_tc
= 0;
3037 tx_ring
->dcb_tc
= 0;
3041 for (n
= 0; n
< I40E_MAX_TRAFFIC_CLASS
; n
++) {
3042 if (!(vsi
->tc_config
.enabled_tc
& BIT_ULL(n
)))
3045 qoffset
= vsi
->tc_config
.tc_info
[n
].qoffset
;
3046 qcount
= vsi
->tc_config
.tc_info
[n
].qcount
;
3047 for (i
= qoffset
; i
< (qoffset
+ qcount
); i
++) {
3048 rx_ring
= vsi
->rx_rings
[i
];
3049 tx_ring
= vsi
->tx_rings
[i
];
3050 rx_ring
->dcb_tc
= n
;
3051 tx_ring
->dcb_tc
= n
;
3057 * i40e_set_vsi_rx_mode - Call set_rx_mode on a VSI
3058 * @vsi: ptr to the VSI
3060 static void i40e_set_vsi_rx_mode(struct i40e_vsi
*vsi
)
3063 i40e_set_rx_mode(vsi
->netdev
);
3067 * i40e_fdir_filter_restore - Restore the Sideband Flow Director filters
3068 * @vsi: Pointer to the targeted VSI
3070 * This function replays the hlist on the hw where all the SB Flow Director
3071 * filters were saved.
3073 static void i40e_fdir_filter_restore(struct i40e_vsi
*vsi
)
3075 struct i40e_fdir_filter
*filter
;
3076 struct i40e_pf
*pf
= vsi
->back
;
3077 struct hlist_node
*node
;
3079 if (!(pf
->flags
& I40E_FLAG_FD_SB_ENABLED
))
3082 hlist_for_each_entry_safe(filter
, node
,
3083 &pf
->fdir_filter_list
, fdir_node
) {
3084 i40e_add_del_fdir(vsi
, filter
, true);
3089 * i40e_vsi_configure - Set up the VSI for action
3090 * @vsi: the VSI being configured
3092 static int i40e_vsi_configure(struct i40e_vsi
*vsi
)
3096 i40e_set_vsi_rx_mode(vsi
);
3097 i40e_restore_vlan(vsi
);
3098 i40e_vsi_config_dcb_rings(vsi
);
3099 err
= i40e_vsi_configure_tx(vsi
);
3101 err
= i40e_vsi_configure_rx(vsi
);
3107 * i40e_vsi_configure_msix - MSIX mode Interrupt Config in the HW
3108 * @vsi: the VSI being configured
3110 static void i40e_vsi_configure_msix(struct i40e_vsi
*vsi
)
3112 struct i40e_pf
*pf
= vsi
->back
;
3113 struct i40e_hw
*hw
= &pf
->hw
;
3118 /* The interrupt indexing is offset by 1 in the PFINT_ITRn
3119 * and PFINT_LNKLSTn registers, e.g.:
3120 * PFINT_ITRn[0..n-1] gets msix-1..msix-n (qpair interrupts)
3122 qp
= vsi
->base_queue
;
3123 vector
= vsi
->base_vector
;
3124 for (i
= 0; i
< vsi
->num_q_vectors
; i
++, vector
++) {
3125 struct i40e_q_vector
*q_vector
= vsi
->q_vectors
[i
];
3127 q_vector
->itr_countdown
= ITR_COUNTDOWN_START
;
3128 q_vector
->rx
.itr
= ITR_TO_REG(vsi
->rx_rings
[i
]->rx_itr_setting
);
3129 q_vector
->rx
.latency_range
= I40E_LOW_LATENCY
;
3130 wr32(hw
, I40E_PFINT_ITRN(I40E_RX_ITR
, vector
- 1),
3132 q_vector
->tx
.itr
= ITR_TO_REG(vsi
->tx_rings
[i
]->tx_itr_setting
);
3133 q_vector
->tx
.latency_range
= I40E_LOW_LATENCY
;
3134 wr32(hw
, I40E_PFINT_ITRN(I40E_TX_ITR
, vector
- 1),
3136 wr32(hw
, I40E_PFINT_RATEN(vector
- 1),
3137 INTRL_USEC_TO_REG(vsi
->int_rate_limit
));
3139 /* Linked list for the queuepairs assigned to this vector */
3140 wr32(hw
, I40E_PFINT_LNKLSTN(vector
- 1), qp
);
3141 for (q
= 0; q
< q_vector
->num_ringpairs
; q
++) {
3144 val
= I40E_QINT_RQCTL_CAUSE_ENA_MASK
|
3145 (I40E_RX_ITR
<< I40E_QINT_RQCTL_ITR_INDX_SHIFT
) |
3146 (vector
<< I40E_QINT_RQCTL_MSIX_INDX_SHIFT
) |
3147 (qp
<< I40E_QINT_RQCTL_NEXTQ_INDX_SHIFT
)|
3149 << I40E_QINT_RQCTL_NEXTQ_TYPE_SHIFT
);
3151 wr32(hw
, I40E_QINT_RQCTL(qp
), val
);
3153 val
= I40E_QINT_TQCTL_CAUSE_ENA_MASK
|
3154 (I40E_TX_ITR
<< I40E_QINT_TQCTL_ITR_INDX_SHIFT
) |
3155 (vector
<< I40E_QINT_TQCTL_MSIX_INDX_SHIFT
) |
3156 ((qp
+1) << I40E_QINT_TQCTL_NEXTQ_INDX_SHIFT
)|
3158 << I40E_QINT_TQCTL_NEXTQ_TYPE_SHIFT
);
3160 /* Terminate the linked list */
3161 if (q
== (q_vector
->num_ringpairs
- 1))
3162 val
|= (I40E_QUEUE_END_OF_LIST
3163 << I40E_QINT_TQCTL_NEXTQ_INDX_SHIFT
);
3165 wr32(hw
, I40E_QINT_TQCTL(qp
), val
);
3174 * i40e_enable_misc_int_causes - enable the non-queue interrupts
3175 * @hw: ptr to the hardware info
3177 static void i40e_enable_misc_int_causes(struct i40e_pf
*pf
)
3179 struct i40e_hw
*hw
= &pf
->hw
;
3182 /* clear things first */
3183 wr32(hw
, I40E_PFINT_ICR0_ENA
, 0); /* disable all */
3184 rd32(hw
, I40E_PFINT_ICR0
); /* read to clear */
3186 val
= I40E_PFINT_ICR0_ENA_ECC_ERR_MASK
|
3187 I40E_PFINT_ICR0_ENA_MAL_DETECT_MASK
|
3188 I40E_PFINT_ICR0_ENA_GRST_MASK
|
3189 I40E_PFINT_ICR0_ENA_PCI_EXCEPTION_MASK
|
3190 I40E_PFINT_ICR0_ENA_GPIO_MASK
|
3191 I40E_PFINT_ICR0_ENA_HMC_ERR_MASK
|
3192 I40E_PFINT_ICR0_ENA_VFLR_MASK
|
3193 I40E_PFINT_ICR0_ENA_ADMINQ_MASK
;
3195 if (pf
->flags
& I40E_FLAG_IWARP_ENABLED
)
3196 val
|= I40E_PFINT_ICR0_ENA_PE_CRITERR_MASK
;
3198 if (pf
->flags
& I40E_FLAG_PTP
)
3199 val
|= I40E_PFINT_ICR0_ENA_TIMESYNC_MASK
;
3201 wr32(hw
, I40E_PFINT_ICR0_ENA
, val
);
3203 /* SW_ITR_IDX = 0, but don't change INTENA */
3204 wr32(hw
, I40E_PFINT_DYN_CTL0
, I40E_PFINT_DYN_CTL0_SW_ITR_INDX_MASK
|
3205 I40E_PFINT_DYN_CTL0_INTENA_MSK_MASK
);
3207 /* OTHER_ITR_IDX = 0 */
3208 wr32(hw
, I40E_PFINT_STAT_CTL0
, 0);
3212 * i40e_configure_msi_and_legacy - Legacy mode interrupt config in the HW
3213 * @vsi: the VSI being configured
3215 static void i40e_configure_msi_and_legacy(struct i40e_vsi
*vsi
)
3217 struct i40e_q_vector
*q_vector
= vsi
->q_vectors
[0];
3218 struct i40e_pf
*pf
= vsi
->back
;
3219 struct i40e_hw
*hw
= &pf
->hw
;
3222 /* set the ITR configuration */
3223 q_vector
->itr_countdown
= ITR_COUNTDOWN_START
;
3224 q_vector
->rx
.itr
= ITR_TO_REG(vsi
->rx_rings
[0]->rx_itr_setting
);
3225 q_vector
->rx
.latency_range
= I40E_LOW_LATENCY
;
3226 wr32(hw
, I40E_PFINT_ITR0(I40E_RX_ITR
), q_vector
->rx
.itr
);
3227 q_vector
->tx
.itr
= ITR_TO_REG(vsi
->tx_rings
[0]->tx_itr_setting
);
3228 q_vector
->tx
.latency_range
= I40E_LOW_LATENCY
;
3229 wr32(hw
, I40E_PFINT_ITR0(I40E_TX_ITR
), q_vector
->tx
.itr
);
3231 i40e_enable_misc_int_causes(pf
);
3233 /* FIRSTQ_INDX = 0, FIRSTQ_TYPE = 0 (rx) */
3234 wr32(hw
, I40E_PFINT_LNKLST0
, 0);
3236 /* Associate the queue pair to the vector and enable the queue int */
3237 val
= I40E_QINT_RQCTL_CAUSE_ENA_MASK
|
3238 (I40E_RX_ITR
<< I40E_QINT_RQCTL_ITR_INDX_SHIFT
) |
3239 (I40E_QUEUE_TYPE_TX
<< I40E_QINT_TQCTL_NEXTQ_TYPE_SHIFT
);
3241 wr32(hw
, I40E_QINT_RQCTL(0), val
);
3243 val
= I40E_QINT_TQCTL_CAUSE_ENA_MASK
|
3244 (I40E_TX_ITR
<< I40E_QINT_TQCTL_ITR_INDX_SHIFT
) |
3245 (I40E_QUEUE_END_OF_LIST
<< I40E_QINT_TQCTL_NEXTQ_INDX_SHIFT
);
3247 wr32(hw
, I40E_QINT_TQCTL(0), val
);
3252 * i40e_irq_dynamic_disable_icr0 - Disable default interrupt generation for icr0
3253 * @pf: board private structure
3255 void i40e_irq_dynamic_disable_icr0(struct i40e_pf
*pf
)
3257 struct i40e_hw
*hw
= &pf
->hw
;
3259 wr32(hw
, I40E_PFINT_DYN_CTL0
,
3260 I40E_ITR_NONE
<< I40E_PFINT_DYN_CTLN_ITR_INDX_SHIFT
);
3265 * i40e_irq_dynamic_enable_icr0 - Enable default interrupt generation for icr0
3266 * @pf: board private structure
3267 * @clearpba: true when all pending interrupt events should be cleared
3269 void i40e_irq_dynamic_enable_icr0(struct i40e_pf
*pf
, bool clearpba
)
3271 struct i40e_hw
*hw
= &pf
->hw
;
3274 val
= I40E_PFINT_DYN_CTL0_INTENA_MASK
|
3275 (clearpba
? I40E_PFINT_DYN_CTL0_CLEARPBA_MASK
: 0) |
3276 (I40E_ITR_NONE
<< I40E_PFINT_DYN_CTL0_ITR_INDX_SHIFT
);
3278 wr32(hw
, I40E_PFINT_DYN_CTL0
, val
);
3283 * i40e_msix_clean_rings - MSIX mode Interrupt Handler
3284 * @irq: interrupt number
3285 * @data: pointer to a q_vector
3287 static irqreturn_t
i40e_msix_clean_rings(int irq
, void *data
)
3289 struct i40e_q_vector
*q_vector
= data
;
3291 if (!q_vector
->tx
.ring
&& !q_vector
->rx
.ring
)
3294 napi_schedule_irqoff(&q_vector
->napi
);
3300 * i40e_vsi_request_irq_msix - Initialize MSI-X interrupts
3301 * @vsi: the VSI being configured
3302 * @basename: name for the vector
3304 * Allocates MSI-X vectors and requests interrupts from the kernel.
3306 static int i40e_vsi_request_irq_msix(struct i40e_vsi
*vsi
, char *basename
)
3308 int q_vectors
= vsi
->num_q_vectors
;
3309 struct i40e_pf
*pf
= vsi
->back
;
3310 int base
= vsi
->base_vector
;
3315 for (vector
= 0; vector
< q_vectors
; vector
++) {
3316 struct i40e_q_vector
*q_vector
= vsi
->q_vectors
[vector
];
3318 if (q_vector
->tx
.ring
&& q_vector
->rx
.ring
) {
3319 snprintf(q_vector
->name
, sizeof(q_vector
->name
) - 1,
3320 "%s-%s-%d", basename
, "TxRx", rx_int_idx
++);
3322 } else if (q_vector
->rx
.ring
) {
3323 snprintf(q_vector
->name
, sizeof(q_vector
->name
) - 1,
3324 "%s-%s-%d", basename
, "rx", rx_int_idx
++);
3325 } else if (q_vector
->tx
.ring
) {
3326 snprintf(q_vector
->name
, sizeof(q_vector
->name
) - 1,
3327 "%s-%s-%d", basename
, "tx", tx_int_idx
++);
3329 /* skip this unused q_vector */
3332 err
= request_irq(pf
->msix_entries
[base
+ vector
].vector
,
3338 dev_info(&pf
->pdev
->dev
,
3339 "MSIX request_irq failed, error: %d\n", err
);
3340 goto free_queue_irqs
;
3342 /* assign the mask for this irq */
3343 irq_set_affinity_hint(pf
->msix_entries
[base
+ vector
].vector
,
3344 &q_vector
->affinity_mask
);
3347 vsi
->irqs_ready
= true;
3353 irq_set_affinity_hint(pf
->msix_entries
[base
+ vector
].vector
,
3355 free_irq(pf
->msix_entries
[base
+ vector
].vector
,
3356 &(vsi
->q_vectors
[vector
]));
3362 * i40e_vsi_disable_irq - Mask off queue interrupt generation on the VSI
3363 * @vsi: the VSI being un-configured
3365 static void i40e_vsi_disable_irq(struct i40e_vsi
*vsi
)
3367 struct i40e_pf
*pf
= vsi
->back
;
3368 struct i40e_hw
*hw
= &pf
->hw
;
3369 int base
= vsi
->base_vector
;
3372 for (i
= 0; i
< vsi
->num_queue_pairs
; i
++) {
3373 wr32(hw
, I40E_QINT_TQCTL(vsi
->tx_rings
[i
]->reg_idx
), 0);
3374 wr32(hw
, I40E_QINT_RQCTL(vsi
->rx_rings
[i
]->reg_idx
), 0);
3377 if (pf
->flags
& I40E_FLAG_MSIX_ENABLED
) {
3378 for (i
= vsi
->base_vector
;
3379 i
< (vsi
->num_q_vectors
+ vsi
->base_vector
); i
++)
3380 wr32(hw
, I40E_PFINT_DYN_CTLN(i
- 1), 0);
3383 for (i
= 0; i
< vsi
->num_q_vectors
; i
++)
3384 synchronize_irq(pf
->msix_entries
[i
+ base
].vector
);
3386 /* Legacy and MSI mode - this stops all interrupt handling */
3387 wr32(hw
, I40E_PFINT_ICR0_ENA
, 0);
3388 wr32(hw
, I40E_PFINT_DYN_CTL0
, 0);
3390 synchronize_irq(pf
->pdev
->irq
);
3395 * i40e_vsi_enable_irq - Enable IRQ for the given VSI
3396 * @vsi: the VSI being configured
3398 static int i40e_vsi_enable_irq(struct i40e_vsi
*vsi
)
3400 struct i40e_pf
*pf
= vsi
->back
;
3403 if (pf
->flags
& I40E_FLAG_MSIX_ENABLED
) {
3404 for (i
= 0; i
< vsi
->num_q_vectors
; i
++)
3405 i40e_irq_dynamic_enable(vsi
, i
);
3407 i40e_irq_dynamic_enable_icr0(pf
, true);
3410 i40e_flush(&pf
->hw
);
3415 * i40e_stop_misc_vector - Stop the vector that handles non-queue events
3416 * @pf: board private structure
3418 static void i40e_stop_misc_vector(struct i40e_pf
*pf
)
3421 wr32(&pf
->hw
, I40E_PFINT_ICR0_ENA
, 0);
3422 i40e_flush(&pf
->hw
);
3426 * i40e_intr - MSI/Legacy and non-queue interrupt handler
3427 * @irq: interrupt number
3428 * @data: pointer to a q_vector
3430 * This is the handler used for all MSI/Legacy interrupts, and deals
3431 * with both queue and non-queue interrupts. This is also used in
3432 * MSIX mode to handle the non-queue interrupts.
3434 static irqreturn_t
i40e_intr(int irq
, void *data
)
3436 struct i40e_pf
*pf
= (struct i40e_pf
*)data
;
3437 struct i40e_hw
*hw
= &pf
->hw
;
3438 irqreturn_t ret
= IRQ_NONE
;
3439 u32 icr0
, icr0_remaining
;
3442 icr0
= rd32(hw
, I40E_PFINT_ICR0
);
3443 ena_mask
= rd32(hw
, I40E_PFINT_ICR0_ENA
);
3445 /* if sharing a legacy IRQ, we might get called w/o an intr pending */
3446 if ((icr0
& I40E_PFINT_ICR0_INTEVENT_MASK
) == 0)
3449 /* if interrupt but no bits showing, must be SWINT */
3450 if (((icr0
& ~I40E_PFINT_ICR0_INTEVENT_MASK
) == 0) ||
3451 (icr0
& I40E_PFINT_ICR0_SWINT_MASK
))
3454 if ((pf
->flags
& I40E_FLAG_IWARP_ENABLED
) &&
3455 (ena_mask
& I40E_PFINT_ICR0_ENA_PE_CRITERR_MASK
)) {
3456 ena_mask
&= ~I40E_PFINT_ICR0_ENA_PE_CRITERR_MASK
;
3457 icr0
&= ~I40E_PFINT_ICR0_ENA_PE_CRITERR_MASK
;
3458 dev_info(&pf
->pdev
->dev
, "cleared PE_CRITERR\n");
3461 /* only q0 is used in MSI/Legacy mode, and none are used in MSIX */
3462 if (icr0
& I40E_PFINT_ICR0_QUEUE_0_MASK
) {
3463 struct i40e_vsi
*vsi
= pf
->vsi
[pf
->lan_vsi
];
3464 struct i40e_q_vector
*q_vector
= vsi
->q_vectors
[0];
3466 /* We do not have a way to disarm Queue causes while leaving
3467 * interrupt enabled for all other causes, ideally
3468 * interrupt should be disabled while we are in NAPI but
3469 * this is not a performance path and napi_schedule()
3470 * can deal with rescheduling.
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
);
3479 i40e_debug(&pf
->hw
, I40E_DEBUG_NVM
, "AdminQ event\n");
3482 if (icr0
& I40E_PFINT_ICR0_MAL_DETECT_MASK
) {
3483 ena_mask
&= ~I40E_PFINT_ICR0_ENA_MAL_DETECT_MASK
;
3484 set_bit(__I40E_MDD_EVENT_PENDING
, &pf
->state
);
3487 if (icr0
& I40E_PFINT_ICR0_VFLR_MASK
) {
3488 ena_mask
&= ~I40E_PFINT_ICR0_ENA_VFLR_MASK
;
3489 set_bit(__I40E_VFLR_EVENT_PENDING
, &pf
->state
);
3492 if (icr0
& I40E_PFINT_ICR0_GRST_MASK
) {
3493 if (!test_bit(__I40E_RESET_RECOVERY_PENDING
, &pf
->state
))
3494 set_bit(__I40E_RESET_INTR_RECEIVED
, &pf
->state
);
3495 ena_mask
&= ~I40E_PFINT_ICR0_ENA_GRST_MASK
;
3496 val
= rd32(hw
, I40E_GLGEN_RSTAT
);
3497 val
= (val
& I40E_GLGEN_RSTAT_RESET_TYPE_MASK
)
3498 >> I40E_GLGEN_RSTAT_RESET_TYPE_SHIFT
;
3499 if (val
== I40E_RESET_CORER
) {
3501 } else if (val
== I40E_RESET_GLOBR
) {
3503 } else if (val
== I40E_RESET_EMPR
) {
3505 set_bit(__I40E_EMP_RESET_INTR_RECEIVED
, &pf
->state
);
3509 if (icr0
& I40E_PFINT_ICR0_HMC_ERR_MASK
) {
3510 icr0
&= ~I40E_PFINT_ICR0_HMC_ERR_MASK
;
3511 dev_info(&pf
->pdev
->dev
, "HMC error interrupt\n");
3512 dev_info(&pf
->pdev
->dev
, "HMC error info 0x%x, HMC error data 0x%x\n",
3513 rd32(hw
, I40E_PFHMC_ERRORINFO
),
3514 rd32(hw
, I40E_PFHMC_ERRORDATA
));
3517 if (icr0
& I40E_PFINT_ICR0_TIMESYNC_MASK
) {
3518 u32 prttsyn_stat
= rd32(hw
, I40E_PRTTSYN_STAT_0
);
3520 if (prttsyn_stat
& I40E_PRTTSYN_STAT_0_TXTIME_MASK
) {
3521 icr0
&= ~I40E_PFINT_ICR0_ENA_TIMESYNC_MASK
;
3522 i40e_ptp_tx_hwtstamp(pf
);
3526 /* If a critical error is pending we have no choice but to reset the
3528 * Report and mask out any remaining unexpected interrupts.
3530 icr0_remaining
= icr0
& ena_mask
;
3531 if (icr0_remaining
) {
3532 dev_info(&pf
->pdev
->dev
, "unhandled interrupt icr0=0x%08x\n",
3534 if ((icr0_remaining
& I40E_PFINT_ICR0_PE_CRITERR_MASK
) ||
3535 (icr0_remaining
& I40E_PFINT_ICR0_PCI_EXCEPTION_MASK
) ||
3536 (icr0_remaining
& I40E_PFINT_ICR0_ECC_ERR_MASK
)) {
3537 dev_info(&pf
->pdev
->dev
, "device will be reset\n");
3538 set_bit(__I40E_PF_RESET_REQUESTED
, &pf
->state
);
3539 i40e_service_event_schedule(pf
);
3541 ena_mask
&= ~icr0_remaining
;
3546 /* re-enable interrupt causes */
3547 wr32(hw
, I40E_PFINT_ICR0_ENA
, ena_mask
);
3548 if (!test_bit(__I40E_DOWN
, &pf
->state
)) {
3549 i40e_service_event_schedule(pf
);
3550 i40e_irq_dynamic_enable_icr0(pf
, false);
3557 * i40e_clean_fdir_tx_irq - Reclaim resources after transmit completes
3558 * @tx_ring: tx ring to clean
3559 * @budget: how many cleans we're allowed
3561 * Returns true if there's any budget left (e.g. the clean is finished)
3563 static bool i40e_clean_fdir_tx_irq(struct i40e_ring
*tx_ring
, int budget
)
3565 struct i40e_vsi
*vsi
= tx_ring
->vsi
;
3566 u16 i
= tx_ring
->next_to_clean
;
3567 struct i40e_tx_buffer
*tx_buf
;
3568 struct i40e_tx_desc
*tx_desc
;
3570 tx_buf
= &tx_ring
->tx_bi
[i
];
3571 tx_desc
= I40E_TX_DESC(tx_ring
, i
);
3572 i
-= tx_ring
->count
;
3575 struct i40e_tx_desc
*eop_desc
= tx_buf
->next_to_watch
;
3577 /* if next_to_watch is not set then there is no work pending */
3581 /* prevent any other reads prior to eop_desc */
3582 read_barrier_depends();
3584 /* if the descriptor isn't done, no work yet to do */
3585 if (!(eop_desc
->cmd_type_offset_bsz
&
3586 cpu_to_le64(I40E_TX_DESC_DTYPE_DESC_DONE
)))
3589 /* clear next_to_watch to prevent false hangs */
3590 tx_buf
->next_to_watch
= NULL
;
3592 tx_desc
->buffer_addr
= 0;
3593 tx_desc
->cmd_type_offset_bsz
= 0;
3594 /* move past filter desc */
3599 i
-= tx_ring
->count
;
3600 tx_buf
= tx_ring
->tx_bi
;
3601 tx_desc
= I40E_TX_DESC(tx_ring
, 0);
3603 /* unmap skb header data */
3604 dma_unmap_single(tx_ring
->dev
,
3605 dma_unmap_addr(tx_buf
, dma
),
3606 dma_unmap_len(tx_buf
, len
),
3608 if (tx_buf
->tx_flags
& I40E_TX_FLAGS_FD_SB
)
3609 kfree(tx_buf
->raw_buf
);
3611 tx_buf
->raw_buf
= NULL
;
3612 tx_buf
->tx_flags
= 0;
3613 tx_buf
->next_to_watch
= NULL
;
3614 dma_unmap_len_set(tx_buf
, len
, 0);
3615 tx_desc
->buffer_addr
= 0;
3616 tx_desc
->cmd_type_offset_bsz
= 0;
3618 /* move us past the eop_desc for start of next FD desc */
3623 i
-= tx_ring
->count
;
3624 tx_buf
= tx_ring
->tx_bi
;
3625 tx_desc
= I40E_TX_DESC(tx_ring
, 0);
3628 /* update budget accounting */
3630 } while (likely(budget
));
3632 i
+= tx_ring
->count
;
3633 tx_ring
->next_to_clean
= i
;
3635 if (vsi
->back
->flags
& I40E_FLAG_MSIX_ENABLED
)
3636 i40e_irq_dynamic_enable(vsi
, tx_ring
->q_vector
->v_idx
);
3642 * i40e_fdir_clean_ring - Interrupt Handler for FDIR SB ring
3643 * @irq: interrupt number
3644 * @data: pointer to a q_vector
3646 static irqreturn_t
i40e_fdir_clean_ring(int irq
, void *data
)
3648 struct i40e_q_vector
*q_vector
= data
;
3649 struct i40e_vsi
*vsi
;
3651 if (!q_vector
->tx
.ring
)
3654 vsi
= q_vector
->tx
.ring
->vsi
;
3655 i40e_clean_fdir_tx_irq(q_vector
->tx
.ring
, vsi
->work_limit
);
3661 * i40e_map_vector_to_qp - Assigns the queue pair to the vector
3662 * @vsi: the VSI being configured
3663 * @v_idx: vector index
3664 * @qp_idx: queue pair index
3666 static void i40e_map_vector_to_qp(struct i40e_vsi
*vsi
, int v_idx
, int qp_idx
)
3668 struct i40e_q_vector
*q_vector
= vsi
->q_vectors
[v_idx
];
3669 struct i40e_ring
*tx_ring
= vsi
->tx_rings
[qp_idx
];
3670 struct i40e_ring
*rx_ring
= vsi
->rx_rings
[qp_idx
];
3672 tx_ring
->q_vector
= q_vector
;
3673 tx_ring
->next
= q_vector
->tx
.ring
;
3674 q_vector
->tx
.ring
= tx_ring
;
3675 q_vector
->tx
.count
++;
3677 rx_ring
->q_vector
= q_vector
;
3678 rx_ring
->next
= q_vector
->rx
.ring
;
3679 q_vector
->rx
.ring
= rx_ring
;
3680 q_vector
->rx
.count
++;
3684 * i40e_vsi_map_rings_to_vectors - Maps descriptor rings to vectors
3685 * @vsi: the VSI being configured
3687 * This function maps descriptor rings to the queue-specific vectors
3688 * we were allotted through the MSI-X enabling code. Ideally, we'd have
3689 * one vector per queue pair, but on a constrained vector budget, we
3690 * group the queue pairs as "efficiently" as possible.
3692 static void i40e_vsi_map_rings_to_vectors(struct i40e_vsi
*vsi
)
3694 int qp_remaining
= vsi
->num_queue_pairs
;
3695 int q_vectors
= vsi
->num_q_vectors
;
3700 /* If we don't have enough vectors for a 1-to-1 mapping, we'll have to
3701 * group them so there are multiple queues per vector.
3702 * It is also important to go through all the vectors available to be
3703 * sure that if we don't use all the vectors, that the remaining vectors
3704 * are cleared. This is especially important when decreasing the
3705 * number of queues in use.
3707 for (; v_start
< q_vectors
; v_start
++) {
3708 struct i40e_q_vector
*q_vector
= vsi
->q_vectors
[v_start
];
3710 num_ringpairs
= DIV_ROUND_UP(qp_remaining
, q_vectors
- v_start
);
3712 q_vector
->num_ringpairs
= num_ringpairs
;
3714 q_vector
->rx
.count
= 0;
3715 q_vector
->tx
.count
= 0;
3716 q_vector
->rx
.ring
= NULL
;
3717 q_vector
->tx
.ring
= NULL
;
3719 while (num_ringpairs
--) {
3720 i40e_map_vector_to_qp(vsi
, v_start
, qp_idx
);
3728 * i40e_vsi_request_irq - Request IRQ from the OS
3729 * @vsi: the VSI being configured
3730 * @basename: name for the vector
3732 static int i40e_vsi_request_irq(struct i40e_vsi
*vsi
, char *basename
)
3734 struct i40e_pf
*pf
= vsi
->back
;
3737 if (pf
->flags
& I40E_FLAG_MSIX_ENABLED
)
3738 err
= i40e_vsi_request_irq_msix(vsi
, basename
);
3739 else if (pf
->flags
& I40E_FLAG_MSI_ENABLED
)
3740 err
= request_irq(pf
->pdev
->irq
, i40e_intr
, 0,
3743 err
= request_irq(pf
->pdev
->irq
, i40e_intr
, IRQF_SHARED
,
3747 dev_info(&pf
->pdev
->dev
, "request_irq failed, Error %d\n", err
);
3752 #ifdef CONFIG_NET_POLL_CONTROLLER
3754 * i40e_netpoll - A Polling 'interrupt' handler
3755 * @netdev: network interface device structure
3757 * This is used by netconsole to send skbs without having to re-enable
3758 * interrupts. It's not called while the normal interrupt routine is executing.
3761 void i40e_netpoll(struct net_device
*netdev
)
3763 static void i40e_netpoll(struct net_device
*netdev
)
3766 struct i40e_netdev_priv
*np
= netdev_priv(netdev
);
3767 struct i40e_vsi
*vsi
= np
->vsi
;
3768 struct i40e_pf
*pf
= vsi
->back
;
3771 /* if interface is down do nothing */
3772 if (test_bit(__I40E_DOWN
, &vsi
->state
))
3775 if (pf
->flags
& I40E_FLAG_MSIX_ENABLED
) {
3776 for (i
= 0; i
< vsi
->num_q_vectors
; i
++)
3777 i40e_msix_clean_rings(0, vsi
->q_vectors
[i
]);
3779 i40e_intr(pf
->pdev
->irq
, netdev
);
3785 * i40e_pf_txq_wait - Wait for a PF's Tx queue to be enabled or disabled
3786 * @pf: the PF being configured
3787 * @pf_q: the PF queue
3788 * @enable: enable or disable state of the queue
3790 * This routine will wait for the given Tx queue of the PF to reach the
3791 * enabled or disabled state.
3792 * Returns -ETIMEDOUT in case of failing to reach the requested state after
3793 * multiple retries; else will return 0 in case of success.
3795 static int i40e_pf_txq_wait(struct i40e_pf
*pf
, int pf_q
, bool enable
)
3800 for (i
= 0; i
< I40E_QUEUE_WAIT_RETRY_LIMIT
; i
++) {
3801 tx_reg
= rd32(&pf
->hw
, I40E_QTX_ENA(pf_q
));
3802 if (enable
== !!(tx_reg
& I40E_QTX_ENA_QENA_STAT_MASK
))
3805 usleep_range(10, 20);
3807 if (i
>= I40E_QUEUE_WAIT_RETRY_LIMIT
)
3814 * i40e_vsi_control_tx - Start or stop a VSI's rings
3815 * @vsi: the VSI being configured
3816 * @enable: start or stop the rings
3818 static int i40e_vsi_control_tx(struct i40e_vsi
*vsi
, bool enable
)
3820 struct i40e_pf
*pf
= vsi
->back
;
3821 struct i40e_hw
*hw
= &pf
->hw
;
3822 int i
, j
, pf_q
, ret
= 0;
3825 pf_q
= vsi
->base_queue
;
3826 for (i
= 0; i
< vsi
->num_queue_pairs
; i
++, pf_q
++) {
3828 /* warn the TX unit of coming changes */
3829 i40e_pre_tx_queue_cfg(&pf
->hw
, pf_q
, enable
);
3831 usleep_range(10, 20);
3833 for (j
= 0; j
< 50; j
++) {
3834 tx_reg
= rd32(hw
, I40E_QTX_ENA(pf_q
));
3835 if (((tx_reg
>> I40E_QTX_ENA_QENA_REQ_SHIFT
) & 1) ==
3836 ((tx_reg
>> I40E_QTX_ENA_QENA_STAT_SHIFT
) & 1))
3838 usleep_range(1000, 2000);
3840 /* Skip if the queue is already in the requested state */
3841 if (enable
== !!(tx_reg
& I40E_QTX_ENA_QENA_STAT_MASK
))
3844 /* turn on/off the queue */
3846 wr32(hw
, I40E_QTX_HEAD(pf_q
), 0);
3847 tx_reg
|= I40E_QTX_ENA_QENA_REQ_MASK
;
3849 tx_reg
&= ~I40E_QTX_ENA_QENA_REQ_MASK
;
3852 wr32(hw
, I40E_QTX_ENA(pf_q
), tx_reg
);
3853 /* No waiting for the Tx queue to disable */
3854 if (!enable
&& test_bit(__I40E_PORT_TX_SUSPENDED
, &pf
->state
))
3857 /* wait for the change to finish */
3858 ret
= i40e_pf_txq_wait(pf
, pf_q
, enable
);
3860 dev_info(&pf
->pdev
->dev
,
3861 "VSI seid %d Tx ring %d %sable timeout\n",
3862 vsi
->seid
, pf_q
, (enable
? "en" : "dis"));
3867 if (hw
->revision_id
== 0)
3873 * i40e_pf_rxq_wait - Wait for a PF's Rx queue to be enabled or disabled
3874 * @pf: the PF being configured
3875 * @pf_q: the PF queue
3876 * @enable: enable or disable state of the queue
3878 * This routine will wait for the given Rx queue of the PF to reach the
3879 * enabled or disabled state.
3880 * Returns -ETIMEDOUT in case of failing to reach the requested state after
3881 * multiple retries; else will return 0 in case of success.
3883 static int i40e_pf_rxq_wait(struct i40e_pf
*pf
, int pf_q
, bool enable
)
3888 for (i
= 0; i
< I40E_QUEUE_WAIT_RETRY_LIMIT
; i
++) {
3889 rx_reg
= rd32(&pf
->hw
, I40E_QRX_ENA(pf_q
));
3890 if (enable
== !!(rx_reg
& I40E_QRX_ENA_QENA_STAT_MASK
))
3893 usleep_range(10, 20);
3895 if (i
>= I40E_QUEUE_WAIT_RETRY_LIMIT
)
3902 * i40e_vsi_control_rx - Start or stop a VSI's rings
3903 * @vsi: the VSI being configured
3904 * @enable: start or stop the rings
3906 static int i40e_vsi_control_rx(struct i40e_vsi
*vsi
, bool enable
)
3908 struct i40e_pf
*pf
= vsi
->back
;
3909 struct i40e_hw
*hw
= &pf
->hw
;
3910 int i
, j
, pf_q
, ret
= 0;
3913 pf_q
= vsi
->base_queue
;
3914 for (i
= 0; i
< vsi
->num_queue_pairs
; i
++, pf_q
++) {
3915 for (j
= 0; j
< 50; j
++) {
3916 rx_reg
= rd32(hw
, I40E_QRX_ENA(pf_q
));
3917 if (((rx_reg
>> I40E_QRX_ENA_QENA_REQ_SHIFT
) & 1) ==
3918 ((rx_reg
>> I40E_QRX_ENA_QENA_STAT_SHIFT
) & 1))
3920 usleep_range(1000, 2000);
3923 /* Skip if the queue is already in the requested state */
3924 if (enable
== !!(rx_reg
& I40E_QRX_ENA_QENA_STAT_MASK
))
3927 /* turn on/off the queue */
3929 rx_reg
|= I40E_QRX_ENA_QENA_REQ_MASK
;
3931 rx_reg
&= ~I40E_QRX_ENA_QENA_REQ_MASK
;
3932 wr32(hw
, I40E_QRX_ENA(pf_q
), rx_reg
);
3933 /* No waiting for the Tx queue to disable */
3934 if (!enable
&& test_bit(__I40E_PORT_TX_SUSPENDED
, &pf
->state
))
3937 /* wait for the change to finish */
3938 ret
= i40e_pf_rxq_wait(pf
, pf_q
, enable
);
3940 dev_info(&pf
->pdev
->dev
,
3941 "VSI seid %d Rx ring %d %sable timeout\n",
3942 vsi
->seid
, pf_q
, (enable
? "en" : "dis"));
3951 * i40e_vsi_control_rings - Start or stop a VSI's rings
3952 * @vsi: the VSI being configured
3953 * @enable: start or stop the rings
3955 int i40e_vsi_control_rings(struct i40e_vsi
*vsi
, bool request
)
3959 /* do rx first for enable and last for disable */
3961 ret
= i40e_vsi_control_rx(vsi
, request
);
3964 ret
= i40e_vsi_control_tx(vsi
, request
);
3966 /* Ignore return value, we need to shutdown whatever we can */
3967 i40e_vsi_control_tx(vsi
, request
);
3968 i40e_vsi_control_rx(vsi
, request
);
3975 * i40e_vsi_free_irq - Free the irq association with the OS
3976 * @vsi: the VSI being configured
3978 static void i40e_vsi_free_irq(struct i40e_vsi
*vsi
)
3980 struct i40e_pf
*pf
= vsi
->back
;
3981 struct i40e_hw
*hw
= &pf
->hw
;
3982 int base
= vsi
->base_vector
;
3986 if (pf
->flags
& I40E_FLAG_MSIX_ENABLED
) {
3987 if (!vsi
->q_vectors
)
3990 if (!vsi
->irqs_ready
)
3993 vsi
->irqs_ready
= false;
3994 for (i
= 0; i
< vsi
->num_q_vectors
; i
++) {
3995 u16 vector
= i
+ base
;
3997 /* free only the irqs that were actually requested */
3998 if (!vsi
->q_vectors
[i
] ||
3999 !vsi
->q_vectors
[i
]->num_ringpairs
)
4002 /* clear the affinity_mask in the IRQ descriptor */
4003 irq_set_affinity_hint(pf
->msix_entries
[vector
].vector
,
4005 free_irq(pf
->msix_entries
[vector
].vector
,
4008 /* Tear down the interrupt queue link list
4010 * We know that they come in pairs and always
4011 * the Rx first, then the Tx. To clear the
4012 * link list, stick the EOL value into the
4013 * next_q field of the registers.
4015 val
= rd32(hw
, I40E_PFINT_LNKLSTN(vector
- 1));
4016 qp
= (val
& I40E_PFINT_LNKLSTN_FIRSTQ_INDX_MASK
)
4017 >> I40E_PFINT_LNKLSTN_FIRSTQ_INDX_SHIFT
;
4018 val
|= I40E_QUEUE_END_OF_LIST
4019 << I40E_PFINT_LNKLSTN_FIRSTQ_INDX_SHIFT
;
4020 wr32(hw
, I40E_PFINT_LNKLSTN(vector
- 1), val
);
4022 while (qp
!= I40E_QUEUE_END_OF_LIST
) {
4025 val
= rd32(hw
, I40E_QINT_RQCTL(qp
));
4027 val
&= ~(I40E_QINT_RQCTL_MSIX_INDX_MASK
|
4028 I40E_QINT_RQCTL_MSIX0_INDX_MASK
|
4029 I40E_QINT_RQCTL_CAUSE_ENA_MASK
|
4030 I40E_QINT_RQCTL_INTEVENT_MASK
);
4032 val
|= (I40E_QINT_RQCTL_ITR_INDX_MASK
|
4033 I40E_QINT_RQCTL_NEXTQ_INDX_MASK
);
4035 wr32(hw
, I40E_QINT_RQCTL(qp
), val
);
4037 val
= rd32(hw
, I40E_QINT_TQCTL(qp
));
4039 next
= (val
& I40E_QINT_TQCTL_NEXTQ_INDX_MASK
)
4040 >> I40E_QINT_TQCTL_NEXTQ_INDX_SHIFT
;
4042 val
&= ~(I40E_QINT_TQCTL_MSIX_INDX_MASK
|
4043 I40E_QINT_TQCTL_MSIX0_INDX_MASK
|
4044 I40E_QINT_TQCTL_CAUSE_ENA_MASK
|
4045 I40E_QINT_TQCTL_INTEVENT_MASK
);
4047 val
|= (I40E_QINT_TQCTL_ITR_INDX_MASK
|
4048 I40E_QINT_TQCTL_NEXTQ_INDX_MASK
);
4050 wr32(hw
, I40E_QINT_TQCTL(qp
), val
);
4055 free_irq(pf
->pdev
->irq
, pf
);
4057 val
= rd32(hw
, I40E_PFINT_LNKLST0
);
4058 qp
= (val
& I40E_PFINT_LNKLSTN_FIRSTQ_INDX_MASK
)
4059 >> I40E_PFINT_LNKLSTN_FIRSTQ_INDX_SHIFT
;
4060 val
|= I40E_QUEUE_END_OF_LIST
4061 << I40E_PFINT_LNKLST0_FIRSTQ_INDX_SHIFT
;
4062 wr32(hw
, I40E_PFINT_LNKLST0
, val
);
4064 val
= rd32(hw
, I40E_QINT_RQCTL(qp
));
4065 val
&= ~(I40E_QINT_RQCTL_MSIX_INDX_MASK
|
4066 I40E_QINT_RQCTL_MSIX0_INDX_MASK
|
4067 I40E_QINT_RQCTL_CAUSE_ENA_MASK
|
4068 I40E_QINT_RQCTL_INTEVENT_MASK
);
4070 val
|= (I40E_QINT_RQCTL_ITR_INDX_MASK
|
4071 I40E_QINT_RQCTL_NEXTQ_INDX_MASK
);
4073 wr32(hw
, I40E_QINT_RQCTL(qp
), val
);
4075 val
= rd32(hw
, I40E_QINT_TQCTL(qp
));
4077 val
&= ~(I40E_QINT_TQCTL_MSIX_INDX_MASK
|
4078 I40E_QINT_TQCTL_MSIX0_INDX_MASK
|
4079 I40E_QINT_TQCTL_CAUSE_ENA_MASK
|
4080 I40E_QINT_TQCTL_INTEVENT_MASK
);
4082 val
|= (I40E_QINT_TQCTL_ITR_INDX_MASK
|
4083 I40E_QINT_TQCTL_NEXTQ_INDX_MASK
);
4085 wr32(hw
, I40E_QINT_TQCTL(qp
), val
);
4090 * i40e_free_q_vector - Free memory allocated for specific interrupt vector
4091 * @vsi: the VSI being configured
4092 * @v_idx: Index of vector to be freed
4094 * This function frees the memory allocated to the q_vector. In addition if
4095 * NAPI is enabled it will delete any references to the NAPI struct prior
4096 * to freeing the q_vector.
4098 static void i40e_free_q_vector(struct i40e_vsi
*vsi
, int v_idx
)
4100 struct i40e_q_vector
*q_vector
= vsi
->q_vectors
[v_idx
];
4101 struct i40e_ring
*ring
;
4106 /* disassociate q_vector from rings */
4107 i40e_for_each_ring(ring
, q_vector
->tx
)
4108 ring
->q_vector
= NULL
;
4110 i40e_for_each_ring(ring
, q_vector
->rx
)
4111 ring
->q_vector
= NULL
;
4113 /* only VSI w/ an associated netdev is set up w/ NAPI */
4115 netif_napi_del(&q_vector
->napi
);
4117 vsi
->q_vectors
[v_idx
] = NULL
;
4119 kfree_rcu(q_vector
, rcu
);
4123 * i40e_vsi_free_q_vectors - Free memory allocated for interrupt vectors
4124 * @vsi: the VSI being un-configured
4126 * This frees the memory allocated to the q_vectors and
4127 * deletes references to the NAPI struct.
4129 static void i40e_vsi_free_q_vectors(struct i40e_vsi
*vsi
)
4133 for (v_idx
= 0; v_idx
< vsi
->num_q_vectors
; v_idx
++)
4134 i40e_free_q_vector(vsi
, v_idx
);
4138 * i40e_reset_interrupt_capability - Disable interrupt setup in OS
4139 * @pf: board private structure
4141 static void i40e_reset_interrupt_capability(struct i40e_pf
*pf
)
4143 /* If we're in Legacy mode, the interrupt was cleaned in vsi_close */
4144 if (pf
->flags
& I40E_FLAG_MSIX_ENABLED
) {
4145 pci_disable_msix(pf
->pdev
);
4146 kfree(pf
->msix_entries
);
4147 pf
->msix_entries
= NULL
;
4148 kfree(pf
->irq_pile
);
4149 pf
->irq_pile
= NULL
;
4150 } else if (pf
->flags
& I40E_FLAG_MSI_ENABLED
) {
4151 pci_disable_msi(pf
->pdev
);
4153 pf
->flags
&= ~(I40E_FLAG_MSIX_ENABLED
| I40E_FLAG_MSI_ENABLED
);
4157 * i40e_clear_interrupt_scheme - Clear the current interrupt scheme settings
4158 * @pf: board private structure
4160 * We go through and clear interrupt specific resources and reset the structure
4161 * to pre-load conditions
4163 static void i40e_clear_interrupt_scheme(struct i40e_pf
*pf
)
4167 i40e_stop_misc_vector(pf
);
4168 if (pf
->flags
& I40E_FLAG_MSIX_ENABLED
&& pf
->msix_entries
) {
4169 synchronize_irq(pf
->msix_entries
[0].vector
);
4170 free_irq(pf
->msix_entries
[0].vector
, pf
);
4173 i40e_put_lump(pf
->irq_pile
, pf
->iwarp_base_vector
,
4174 I40E_IWARP_IRQ_PILE_ID
);
4176 i40e_put_lump(pf
->irq_pile
, 0, I40E_PILE_VALID_BIT
-1);
4177 for (i
= 0; i
< pf
->num_alloc_vsi
; i
++)
4179 i40e_vsi_free_q_vectors(pf
->vsi
[i
]);
4180 i40e_reset_interrupt_capability(pf
);
4184 * i40e_napi_enable_all - Enable NAPI for all q_vectors in the VSI
4185 * @vsi: the VSI being configured
4187 static void i40e_napi_enable_all(struct i40e_vsi
*vsi
)
4194 for (q_idx
= 0; q_idx
< vsi
->num_q_vectors
; q_idx
++)
4195 napi_enable(&vsi
->q_vectors
[q_idx
]->napi
);
4199 * i40e_napi_disable_all - Disable NAPI for all q_vectors in the VSI
4200 * @vsi: the VSI being configured
4202 static void i40e_napi_disable_all(struct i40e_vsi
*vsi
)
4209 for (q_idx
= 0; q_idx
< vsi
->num_q_vectors
; q_idx
++)
4210 napi_disable(&vsi
->q_vectors
[q_idx
]->napi
);
4214 * i40e_vsi_close - Shut down a VSI
4215 * @vsi: the vsi to be quelled
4217 static void i40e_vsi_close(struct i40e_vsi
*vsi
)
4221 if (!test_and_set_bit(__I40E_DOWN
, &vsi
->state
))
4223 i40e_vsi_free_irq(vsi
);
4224 i40e_vsi_free_tx_resources(vsi
);
4225 i40e_vsi_free_rx_resources(vsi
);
4226 vsi
->current_netdev_flags
= 0;
4227 if (test_bit(__I40E_RESET_RECOVERY_PENDING
, &vsi
->back
->state
))
4229 i40e_notify_client_of_netdev_close(vsi
, reset
);
4233 * i40e_quiesce_vsi - Pause a given VSI
4234 * @vsi: the VSI being paused
4236 static void i40e_quiesce_vsi(struct i40e_vsi
*vsi
)
4238 if (test_bit(__I40E_DOWN
, &vsi
->state
))
4241 /* No need to disable FCoE VSI when Tx suspended */
4242 if ((test_bit(__I40E_PORT_TX_SUSPENDED
, &vsi
->back
->state
)) &&
4243 vsi
->type
== I40E_VSI_FCOE
) {
4244 dev_dbg(&vsi
->back
->pdev
->dev
,
4245 "VSI seid %d skipping FCoE VSI disable\n", vsi
->seid
);
4249 set_bit(__I40E_NEEDS_RESTART
, &vsi
->state
);
4250 if (vsi
->netdev
&& netif_running(vsi
->netdev
))
4251 vsi
->netdev
->netdev_ops
->ndo_stop(vsi
->netdev
);
4253 i40e_vsi_close(vsi
);
4257 * i40e_unquiesce_vsi - Resume a given VSI
4258 * @vsi: the VSI being resumed
4260 static void i40e_unquiesce_vsi(struct i40e_vsi
*vsi
)
4262 if (!test_bit(__I40E_NEEDS_RESTART
, &vsi
->state
))
4265 clear_bit(__I40E_NEEDS_RESTART
, &vsi
->state
);
4266 if (vsi
->netdev
&& netif_running(vsi
->netdev
))
4267 vsi
->netdev
->netdev_ops
->ndo_open(vsi
->netdev
);
4269 i40e_vsi_open(vsi
); /* this clears the DOWN bit */
4273 * i40e_pf_quiesce_all_vsi - Pause all VSIs on a PF
4276 static void i40e_pf_quiesce_all_vsi(struct i40e_pf
*pf
)
4280 for (v
= 0; v
< pf
->num_alloc_vsi
; v
++) {
4282 i40e_quiesce_vsi(pf
->vsi
[v
]);
4287 * i40e_pf_unquiesce_all_vsi - Resume all VSIs on a PF
4290 static void i40e_pf_unquiesce_all_vsi(struct i40e_pf
*pf
)
4294 for (v
= 0; v
< pf
->num_alloc_vsi
; v
++) {
4296 i40e_unquiesce_vsi(pf
->vsi
[v
]);
4300 #ifdef CONFIG_I40E_DCB
4302 * i40e_vsi_wait_queues_disabled - Wait for VSI's queues to be disabled
4303 * @vsi: the VSI being configured
4305 * This function waits for the given VSI's queues to be disabled.
4307 static int i40e_vsi_wait_queues_disabled(struct i40e_vsi
*vsi
)
4309 struct i40e_pf
*pf
= vsi
->back
;
4312 pf_q
= vsi
->base_queue
;
4313 for (i
= 0; i
< vsi
->num_queue_pairs
; i
++, pf_q
++) {
4314 /* Check and wait for the disable status of the queue */
4315 ret
= i40e_pf_txq_wait(pf
, pf_q
, false);
4317 dev_info(&pf
->pdev
->dev
,
4318 "VSI seid %d Tx ring %d disable timeout\n",
4324 pf_q
= vsi
->base_queue
;
4325 for (i
= 0; i
< vsi
->num_queue_pairs
; i
++, pf_q
++) {
4326 /* Check and wait for the disable status of the queue */
4327 ret
= i40e_pf_rxq_wait(pf
, pf_q
, false);
4329 dev_info(&pf
->pdev
->dev
,
4330 "VSI seid %d Rx ring %d disable timeout\n",
4340 * i40e_pf_wait_queues_disabled - Wait for all queues of PF VSIs to be disabled
4343 * This function waits for the queues to be in disabled state for all the
4344 * VSIs that are managed by this PF.
4346 static int i40e_pf_wait_queues_disabled(struct i40e_pf
*pf
)
4350 for (v
= 0; v
< pf
->hw
.func_caps
.num_vsis
; v
++) {
4351 /* No need to wait for FCoE VSI queues */
4352 if (pf
->vsi
[v
] && pf
->vsi
[v
]->type
!= I40E_VSI_FCOE
) {
4353 ret
= i40e_vsi_wait_queues_disabled(pf
->vsi
[v
]);
4365 * i40e_detect_recover_hung_queue - Function to detect and recover hung_queue
4366 * @q_idx: TX queue number
4367 * @vsi: Pointer to VSI struct
4369 * This function checks specified queue for given VSI. Detects hung condition.
4370 * Sets hung bit since it is two step process. Before next run of service task
4371 * if napi_poll runs, it reset 'hung' bit for respective q_vector. If not,
4372 * hung condition remain unchanged and during subsequent run, this function
4373 * issues SW interrupt to recover from hung condition.
4375 static void i40e_detect_recover_hung_queue(int q_idx
, struct i40e_vsi
*vsi
)
4377 struct i40e_ring
*tx_ring
= NULL
;
4379 u32 head
, val
, tx_pending_hw
;
4384 /* now that we have an index, find the tx_ring struct */
4385 for (i
= 0; i
< vsi
->num_queue_pairs
; i
++) {
4386 if (vsi
->tx_rings
[i
] && vsi
->tx_rings
[i
]->desc
) {
4387 if (q_idx
== vsi
->tx_rings
[i
]->queue_index
) {
4388 tx_ring
= vsi
->tx_rings
[i
];
4397 /* Read interrupt register */
4398 if (pf
->flags
& I40E_FLAG_MSIX_ENABLED
)
4400 I40E_PFINT_DYN_CTLN(tx_ring
->q_vector
->v_idx
+
4401 tx_ring
->vsi
->base_vector
- 1));
4403 val
= rd32(&pf
->hw
, I40E_PFINT_DYN_CTL0
);
4405 head
= i40e_get_head(tx_ring
);
4407 tx_pending_hw
= i40e_get_tx_pending(tx_ring
, false);
4409 /* HW is done executing descriptors, updated HEAD write back,
4410 * but SW hasn't processed those descriptors. If interrupt is
4411 * not generated from this point ON, it could result into
4412 * dev_watchdog detecting timeout on those netdev_queue,
4413 * hence proactively trigger SW interrupt.
4415 if (tx_pending_hw
&& (!(val
& I40E_PFINT_DYN_CTLN_INTENA_MASK
))) {
4416 /* NAPI Poll didn't run and clear since it was set */
4417 if (test_and_clear_bit(I40E_Q_VECTOR_HUNG_DETECT
,
4418 &tx_ring
->q_vector
->hung_detected
)) {
4419 netdev_info(vsi
->netdev
, "VSI_seid %d, Hung TX queue %d, tx_pending_hw: %d, NTC:0x%x, HWB: 0x%x, NTU: 0x%x, TAIL: 0x%x\n",
4420 vsi
->seid
, q_idx
, tx_pending_hw
,
4421 tx_ring
->next_to_clean
, head
,
4422 tx_ring
->next_to_use
,
4423 readl(tx_ring
->tail
));
4424 netdev_info(vsi
->netdev
, "VSI_seid %d, Issuing force_wb for TX queue %d, Interrupt Reg: 0x%x\n",
4425 vsi
->seid
, q_idx
, val
);
4426 i40e_force_wb(vsi
, tx_ring
->q_vector
);
4428 /* First Chance - detected possible hung */
4429 set_bit(I40E_Q_VECTOR_HUNG_DETECT
,
4430 &tx_ring
->q_vector
->hung_detected
);
4434 /* This is the case where we have interrupts missing,
4435 * so the tx_pending in HW will most likely be 0, but we
4436 * will have tx_pending in SW since the WB happened but the
4437 * interrupt got lost.
4439 if ((!tx_pending_hw
) && i40e_get_tx_pending(tx_ring
, true) &&
4440 (!(val
& I40E_PFINT_DYN_CTLN_INTENA_MASK
))) {
4441 if (napi_reschedule(&tx_ring
->q_vector
->napi
))
4442 tx_ring
->tx_stats
.tx_lost_interrupt
++;
4447 * i40e_detect_recover_hung - Function to detect and recover hung_queues
4448 * @pf: pointer to PF struct
4450 * LAN VSI has netdev and netdev has TX queues. This function is to check
4451 * each of those TX queues if they are hung, trigger recovery by issuing
4454 static void i40e_detect_recover_hung(struct i40e_pf
*pf
)
4456 struct net_device
*netdev
;
4457 struct i40e_vsi
*vsi
;
4460 /* Only for LAN VSI */
4461 vsi
= pf
->vsi
[pf
->lan_vsi
];
4466 /* Make sure, VSI state is not DOWN/RECOVERY_PENDING */
4467 if (test_bit(__I40E_DOWN
, &vsi
->back
->state
) ||
4468 test_bit(__I40E_RESET_RECOVERY_PENDING
, &vsi
->back
->state
))
4471 /* Make sure type is MAIN VSI */
4472 if (vsi
->type
!= I40E_VSI_MAIN
)
4475 netdev
= vsi
->netdev
;
4479 /* Bail out if netif_carrier is not OK */
4480 if (!netif_carrier_ok(netdev
))
4483 /* Go thru' TX queues for netdev */
4484 for (i
= 0; i
< netdev
->num_tx_queues
; i
++) {
4485 struct netdev_queue
*q
;
4487 q
= netdev_get_tx_queue(netdev
, i
);
4489 i40e_detect_recover_hung_queue(i
, vsi
);
4494 * i40e_get_iscsi_tc_map - Return TC map for iSCSI APP
4495 * @pf: pointer to PF
4497 * Get TC map for ISCSI PF type that will include iSCSI TC
4500 static u8
i40e_get_iscsi_tc_map(struct i40e_pf
*pf
)
4502 struct i40e_dcb_app_priority_table app
;
4503 struct i40e_hw
*hw
= &pf
->hw
;
4504 u8 enabled_tc
= 1; /* TC0 is always enabled */
4506 /* Get the iSCSI APP TLV */
4507 struct i40e_dcbx_config
*dcbcfg
= &hw
->local_dcbx_config
;
4509 for (i
= 0; i
< dcbcfg
->numapps
; i
++) {
4510 app
= dcbcfg
->app
[i
];
4511 if (app
.selector
== I40E_APP_SEL_TCPIP
&&
4512 app
.protocolid
== I40E_APP_PROTOID_ISCSI
) {
4513 tc
= dcbcfg
->etscfg
.prioritytable
[app
.priority
];
4514 enabled_tc
|= BIT(tc
);
4523 * i40e_dcb_get_num_tc - Get the number of TCs from DCBx config
4524 * @dcbcfg: the corresponding DCBx configuration structure
4526 * Return the number of TCs from given DCBx configuration
4528 static u8
i40e_dcb_get_num_tc(struct i40e_dcbx_config
*dcbcfg
)
4533 /* Scan the ETS Config Priority Table to find
4534 * traffic class enabled for a given priority
4535 * and use the traffic class index to get the
4536 * number of traffic classes enabled
4538 for (i
= 0; i
< I40E_MAX_USER_PRIORITY
; i
++) {
4539 if (dcbcfg
->etscfg
.prioritytable
[i
] > num_tc
)
4540 num_tc
= dcbcfg
->etscfg
.prioritytable
[i
];
4543 /* Traffic class index starts from zero so
4544 * increment to return the actual count
4550 * i40e_dcb_get_enabled_tc - Get enabled traffic classes
4551 * @dcbcfg: the corresponding DCBx configuration structure
4553 * Query the current DCB configuration and return the number of
4554 * traffic classes enabled from the given DCBX config
4556 static u8
i40e_dcb_get_enabled_tc(struct i40e_dcbx_config
*dcbcfg
)
4558 u8 num_tc
= i40e_dcb_get_num_tc(dcbcfg
);
4562 for (i
= 0; i
< num_tc
; i
++)
4563 enabled_tc
|= BIT(i
);
4569 * i40e_pf_get_num_tc - Get enabled traffic classes for PF
4570 * @pf: PF being queried
4572 * Return number of traffic classes enabled for the given PF
4574 static u8
i40e_pf_get_num_tc(struct i40e_pf
*pf
)
4576 struct i40e_hw
*hw
= &pf
->hw
;
4579 struct i40e_dcbx_config
*dcbcfg
= &hw
->local_dcbx_config
;
4581 /* If DCB is not enabled then always in single TC */
4582 if (!(pf
->flags
& I40E_FLAG_DCB_ENABLED
))
4585 /* SFP mode will be enabled for all TCs on port */
4586 if (!(pf
->flags
& I40E_FLAG_MFP_ENABLED
))
4587 return i40e_dcb_get_num_tc(dcbcfg
);
4589 /* MFP mode return count of enabled TCs for this PF */
4590 if (pf
->hw
.func_caps
.iscsi
)
4591 enabled_tc
= i40e_get_iscsi_tc_map(pf
);
4593 return 1; /* Only TC0 */
4595 /* At least have TC0 */
4596 enabled_tc
= (enabled_tc
? enabled_tc
: 0x1);
4597 for (i
= 0; i
< I40E_MAX_TRAFFIC_CLASS
; i
++) {
4598 if (enabled_tc
& BIT(i
))
4605 * i40e_pf_get_default_tc - Get bitmap for first enabled TC
4606 * @pf: PF being queried
4608 * Return a bitmap for first enabled traffic class for this PF.
4610 static u8
i40e_pf_get_default_tc(struct i40e_pf
*pf
)
4612 u8 enabled_tc
= pf
->hw
.func_caps
.enabled_tcmap
;
4616 return 0x1; /* TC0 */
4618 /* Find the first enabled TC */
4619 for (i
= 0; i
< I40E_MAX_TRAFFIC_CLASS
; i
++) {
4620 if (enabled_tc
& BIT(i
))
4628 * i40e_pf_get_pf_tc_map - Get bitmap for enabled traffic classes
4629 * @pf: PF being queried
4631 * Return a bitmap for enabled traffic classes for this PF.
4633 static u8
i40e_pf_get_tc_map(struct i40e_pf
*pf
)
4635 /* If DCB is not enabled for this PF then just return default TC */
4636 if (!(pf
->flags
& I40E_FLAG_DCB_ENABLED
))
4637 return i40e_pf_get_default_tc(pf
);
4639 /* SFP mode we want PF to be enabled for all TCs */
4640 if (!(pf
->flags
& I40E_FLAG_MFP_ENABLED
))
4641 return i40e_dcb_get_enabled_tc(&pf
->hw
.local_dcbx_config
);
4643 /* MFP enabled and iSCSI PF type */
4644 if (pf
->hw
.func_caps
.iscsi
)
4645 return i40e_get_iscsi_tc_map(pf
);
4647 return i40e_pf_get_default_tc(pf
);
4651 * i40e_vsi_get_bw_info - Query VSI BW Information
4652 * @vsi: the VSI being queried
4654 * Returns 0 on success, negative value on failure
4656 static int i40e_vsi_get_bw_info(struct i40e_vsi
*vsi
)
4658 struct i40e_aqc_query_vsi_ets_sla_config_resp bw_ets_config
= {0};
4659 struct i40e_aqc_query_vsi_bw_config_resp bw_config
= {0};
4660 struct i40e_pf
*pf
= vsi
->back
;
4661 struct i40e_hw
*hw
= &pf
->hw
;
4666 /* Get the VSI level BW configuration */
4667 ret
= i40e_aq_query_vsi_bw_config(hw
, vsi
->seid
, &bw_config
, NULL
);
4669 dev_info(&pf
->pdev
->dev
,
4670 "couldn't get PF vsi bw config, err %s aq_err %s\n",
4671 i40e_stat_str(&pf
->hw
, ret
),
4672 i40e_aq_str(&pf
->hw
, pf
->hw
.aq
.asq_last_status
));
4676 /* Get the VSI level BW configuration per TC */
4677 ret
= i40e_aq_query_vsi_ets_sla_config(hw
, vsi
->seid
, &bw_ets_config
,
4680 dev_info(&pf
->pdev
->dev
,
4681 "couldn't get PF vsi ets bw config, err %s aq_err %s\n",
4682 i40e_stat_str(&pf
->hw
, ret
),
4683 i40e_aq_str(&pf
->hw
, pf
->hw
.aq
.asq_last_status
));
4687 if (bw_config
.tc_valid_bits
!= bw_ets_config
.tc_valid_bits
) {
4688 dev_info(&pf
->pdev
->dev
,
4689 "Enabled TCs mismatch from querying VSI BW info 0x%08x 0x%08x\n",
4690 bw_config
.tc_valid_bits
,
4691 bw_ets_config
.tc_valid_bits
);
4692 /* Still continuing */
4695 vsi
->bw_limit
= le16_to_cpu(bw_config
.port_bw_limit
);
4696 vsi
->bw_max_quanta
= bw_config
.max_bw
;
4697 tc_bw_max
= le16_to_cpu(bw_ets_config
.tc_bw_max
[0]) |
4698 (le16_to_cpu(bw_ets_config
.tc_bw_max
[1]) << 16);
4699 for (i
= 0; i
< I40E_MAX_TRAFFIC_CLASS
; i
++) {
4700 vsi
->bw_ets_share_credits
[i
] = bw_ets_config
.share_credits
[i
];
4701 vsi
->bw_ets_limit_credits
[i
] =
4702 le16_to_cpu(bw_ets_config
.credits
[i
]);
4703 /* 3 bits out of 4 for each TC */
4704 vsi
->bw_ets_max_quanta
[i
] = (u8
)((tc_bw_max
>> (i
*4)) & 0x7);
4711 * i40e_vsi_configure_bw_alloc - Configure VSI BW allocation per TC
4712 * @vsi: the VSI being configured
4713 * @enabled_tc: TC bitmap
4714 * @bw_credits: BW shared credits per TC
4716 * Returns 0 on success, negative value on failure
4718 static int i40e_vsi_configure_bw_alloc(struct i40e_vsi
*vsi
, u8 enabled_tc
,
4721 struct i40e_aqc_configure_vsi_tc_bw_data bw_data
;
4725 bw_data
.tc_valid_bits
= enabled_tc
;
4726 for (i
= 0; i
< I40E_MAX_TRAFFIC_CLASS
; i
++)
4727 bw_data
.tc_bw_credits
[i
] = bw_share
[i
];
4729 ret
= i40e_aq_config_vsi_tc_bw(&vsi
->back
->hw
, vsi
->seid
, &bw_data
,
4732 dev_info(&vsi
->back
->pdev
->dev
,
4733 "AQ command Config VSI BW allocation per TC failed = %d\n",
4734 vsi
->back
->hw
.aq
.asq_last_status
);
4738 for (i
= 0; i
< I40E_MAX_TRAFFIC_CLASS
; i
++)
4739 vsi
->info
.qs_handle
[i
] = bw_data
.qs_handles
[i
];
4745 * i40e_vsi_config_netdev_tc - Setup the netdev TC configuration
4746 * @vsi: the VSI being configured
4747 * @enabled_tc: TC map to be enabled
4750 static void i40e_vsi_config_netdev_tc(struct i40e_vsi
*vsi
, u8 enabled_tc
)
4752 struct net_device
*netdev
= vsi
->netdev
;
4753 struct i40e_pf
*pf
= vsi
->back
;
4754 struct i40e_hw
*hw
= &pf
->hw
;
4757 struct i40e_dcbx_config
*dcbcfg
= &hw
->local_dcbx_config
;
4763 netdev_reset_tc(netdev
);
4767 /* Set up actual enabled TCs on the VSI */
4768 if (netdev_set_num_tc(netdev
, vsi
->tc_config
.numtc
))
4771 /* set per TC queues for the VSI */
4772 for (i
= 0; i
< I40E_MAX_TRAFFIC_CLASS
; i
++) {
4773 /* Only set TC queues for enabled tcs
4775 * e.g. For a VSI that has TC0 and TC3 enabled the
4776 * enabled_tc bitmap would be 0x00001001; the driver
4777 * will set the numtc for netdev as 2 that will be
4778 * referenced by the netdev layer as TC 0 and 1.
4780 if (vsi
->tc_config
.enabled_tc
& BIT(i
))
4781 netdev_set_tc_queue(netdev
,
4782 vsi
->tc_config
.tc_info
[i
].netdev_tc
,
4783 vsi
->tc_config
.tc_info
[i
].qcount
,
4784 vsi
->tc_config
.tc_info
[i
].qoffset
);
4787 /* Assign UP2TC map for the VSI */
4788 for (i
= 0; i
< I40E_MAX_USER_PRIORITY
; i
++) {
4789 /* Get the actual TC# for the UP */
4790 u8 ets_tc
= dcbcfg
->etscfg
.prioritytable
[i
];
4791 /* Get the mapped netdev TC# for the UP */
4792 netdev_tc
= vsi
->tc_config
.tc_info
[ets_tc
].netdev_tc
;
4793 netdev_set_prio_tc_map(netdev
, i
, netdev_tc
);
4798 * i40e_vsi_update_queue_map - Update our copy of VSi info with new queue map
4799 * @vsi: the VSI being configured
4800 * @ctxt: the ctxt buffer returned from AQ VSI update param command
4802 static void i40e_vsi_update_queue_map(struct i40e_vsi
*vsi
,
4803 struct i40e_vsi_context
*ctxt
)
4805 /* copy just the sections touched not the entire info
4806 * since not all sections are valid as returned by
4809 vsi
->info
.mapping_flags
= ctxt
->info
.mapping_flags
;
4810 memcpy(&vsi
->info
.queue_mapping
,
4811 &ctxt
->info
.queue_mapping
, sizeof(vsi
->info
.queue_mapping
));
4812 memcpy(&vsi
->info
.tc_mapping
, ctxt
->info
.tc_mapping
,
4813 sizeof(vsi
->info
.tc_mapping
));
4817 * i40e_vsi_config_tc - Configure VSI Tx Scheduler for given TC map
4818 * @vsi: VSI to be configured
4819 * @enabled_tc: TC bitmap
4821 * This configures a particular VSI for TCs that are mapped to the
4822 * given TC bitmap. It uses default bandwidth share for TCs across
4823 * VSIs to configure TC for a particular VSI.
4826 * It is expected that the VSI queues have been quisced before calling
4829 static int i40e_vsi_config_tc(struct i40e_vsi
*vsi
, u8 enabled_tc
)
4831 u8 bw_share
[I40E_MAX_TRAFFIC_CLASS
] = {0};
4832 struct i40e_vsi_context ctxt
;
4836 /* Check if enabled_tc is same as existing or new TCs */
4837 if (vsi
->tc_config
.enabled_tc
== enabled_tc
)
4840 /* Enable ETS TCs with equal BW Share for now across all VSIs */
4841 for (i
= 0; i
< I40E_MAX_TRAFFIC_CLASS
; i
++) {
4842 if (enabled_tc
& BIT(i
))
4846 ret
= i40e_vsi_configure_bw_alloc(vsi
, enabled_tc
, bw_share
);
4848 dev_info(&vsi
->back
->pdev
->dev
,
4849 "Failed configuring TC map %d for VSI %d\n",
4850 enabled_tc
, vsi
->seid
);
4854 /* Update Queue Pairs Mapping for currently enabled UPs */
4855 ctxt
.seid
= vsi
->seid
;
4856 ctxt
.pf_num
= vsi
->back
->hw
.pf_id
;
4858 ctxt
.uplink_seid
= vsi
->uplink_seid
;
4859 ctxt
.info
= vsi
->info
;
4860 i40e_vsi_setup_queue_map(vsi
, &ctxt
, enabled_tc
, false);
4862 if (vsi
->back
->flags
& I40E_FLAG_IWARP_ENABLED
) {
4863 ctxt
.info
.valid_sections
|=
4864 cpu_to_le16(I40E_AQ_VSI_PROP_QUEUE_OPT_VALID
);
4865 ctxt
.info
.queueing_opt_flags
|= I40E_AQ_VSI_QUE_OPT_TCP_ENA
;
4868 /* Update the VSI after updating the VSI queue-mapping information */
4869 ret
= i40e_aq_update_vsi_params(&vsi
->back
->hw
, &ctxt
, NULL
);
4871 dev_info(&vsi
->back
->pdev
->dev
,
4872 "Update vsi tc config failed, err %s aq_err %s\n",
4873 i40e_stat_str(&vsi
->back
->hw
, ret
),
4874 i40e_aq_str(&vsi
->back
->hw
,
4875 vsi
->back
->hw
.aq
.asq_last_status
));
4878 /* update the local VSI info with updated queue map */
4879 i40e_vsi_update_queue_map(vsi
, &ctxt
);
4880 vsi
->info
.valid_sections
= 0;
4882 /* Update current VSI BW information */
4883 ret
= i40e_vsi_get_bw_info(vsi
);
4885 dev_info(&vsi
->back
->pdev
->dev
,
4886 "Failed updating vsi bw info, err %s aq_err %s\n",
4887 i40e_stat_str(&vsi
->back
->hw
, ret
),
4888 i40e_aq_str(&vsi
->back
->hw
,
4889 vsi
->back
->hw
.aq
.asq_last_status
));
4893 /* Update the netdev TC setup */
4894 i40e_vsi_config_netdev_tc(vsi
, enabled_tc
);
4900 * i40e_veb_config_tc - Configure TCs for given VEB
4902 * @enabled_tc: TC bitmap
4904 * Configures given TC bitmap for VEB (switching) element
4906 int i40e_veb_config_tc(struct i40e_veb
*veb
, u8 enabled_tc
)
4908 struct i40e_aqc_configure_switching_comp_bw_config_data bw_data
= {0};
4909 struct i40e_pf
*pf
= veb
->pf
;
4913 /* No TCs or already enabled TCs just return */
4914 if (!enabled_tc
|| veb
->enabled_tc
== enabled_tc
)
4917 bw_data
.tc_valid_bits
= enabled_tc
;
4918 /* bw_data.absolute_credits is not set (relative) */
4920 /* Enable ETS TCs with equal BW Share for now */
4921 for (i
= 0; i
< I40E_MAX_TRAFFIC_CLASS
; i
++) {
4922 if (enabled_tc
& BIT(i
))
4923 bw_data
.tc_bw_share_credits
[i
] = 1;
4926 ret
= i40e_aq_config_switch_comp_bw_config(&pf
->hw
, veb
->seid
,
4929 dev_info(&pf
->pdev
->dev
,
4930 "VEB bw config failed, err %s aq_err %s\n",
4931 i40e_stat_str(&pf
->hw
, ret
),
4932 i40e_aq_str(&pf
->hw
, pf
->hw
.aq
.asq_last_status
));
4936 /* Update the BW information */
4937 ret
= i40e_veb_get_bw_info(veb
);
4939 dev_info(&pf
->pdev
->dev
,
4940 "Failed getting veb bw config, err %s aq_err %s\n",
4941 i40e_stat_str(&pf
->hw
, ret
),
4942 i40e_aq_str(&pf
->hw
, pf
->hw
.aq
.asq_last_status
));
4949 #ifdef CONFIG_I40E_DCB
4951 * i40e_dcb_reconfigure - Reconfigure all VEBs and VSIs
4954 * Reconfigure VEB/VSIs on a given PF; it is assumed that
4955 * the caller would've quiesce all the VSIs before calling
4958 static void i40e_dcb_reconfigure(struct i40e_pf
*pf
)
4964 /* Enable the TCs available on PF to all VEBs */
4965 tc_map
= i40e_pf_get_tc_map(pf
);
4966 for (v
= 0; v
< I40E_MAX_VEB
; v
++) {
4969 ret
= i40e_veb_config_tc(pf
->veb
[v
], tc_map
);
4971 dev_info(&pf
->pdev
->dev
,
4972 "Failed configuring TC for VEB seid=%d\n",
4974 /* Will try to configure as many components */
4978 /* Update each VSI */
4979 for (v
= 0; v
< pf
->num_alloc_vsi
; v
++) {
4983 /* - Enable all TCs for the LAN VSI
4985 * - For FCoE VSI only enable the TC configured
4986 * as per the APP TLV
4988 * - For all others keep them at TC0 for now
4990 if (v
== pf
->lan_vsi
)
4991 tc_map
= i40e_pf_get_tc_map(pf
);
4993 tc_map
= i40e_pf_get_default_tc(pf
);
4995 if (pf
->vsi
[v
]->type
== I40E_VSI_FCOE
)
4996 tc_map
= i40e_get_fcoe_tc_map(pf
);
4997 #endif /* #ifdef I40E_FCOE */
4999 ret
= i40e_vsi_config_tc(pf
->vsi
[v
], tc_map
);
5001 dev_info(&pf
->pdev
->dev
,
5002 "Failed configuring TC for VSI seid=%d\n",
5004 /* Will try to configure as many components */
5006 /* Re-configure VSI vectors based on updated TC map */
5007 i40e_vsi_map_rings_to_vectors(pf
->vsi
[v
]);
5008 if (pf
->vsi
[v
]->netdev
)
5009 i40e_dcbnl_set_all(pf
->vsi
[v
]);
5011 i40e_notify_client_of_l2_param_changes(pf
->vsi
[v
]);
5016 * i40e_resume_port_tx - Resume port Tx
5019 * Resume a port's Tx and issue a PF reset in case of failure to
5022 static int i40e_resume_port_tx(struct i40e_pf
*pf
)
5024 struct i40e_hw
*hw
= &pf
->hw
;
5027 ret
= i40e_aq_resume_port_tx(hw
, NULL
);
5029 dev_info(&pf
->pdev
->dev
,
5030 "Resume Port Tx failed, err %s aq_err %s\n",
5031 i40e_stat_str(&pf
->hw
, ret
),
5032 i40e_aq_str(&pf
->hw
, pf
->hw
.aq
.asq_last_status
));
5033 /* Schedule PF reset to recover */
5034 set_bit(__I40E_PF_RESET_REQUESTED
, &pf
->state
);
5035 i40e_service_event_schedule(pf
);
5042 * i40e_init_pf_dcb - Initialize DCB configuration
5043 * @pf: PF being configured
5045 * Query the current DCB configuration and cache it
5046 * in the hardware structure
5048 static int i40e_init_pf_dcb(struct i40e_pf
*pf
)
5050 struct i40e_hw
*hw
= &pf
->hw
;
5053 /* Do not enable DCB for SW1 and SW2 images even if the FW is capable */
5054 if (pf
->flags
& I40E_FLAG_NO_DCB_SUPPORT
)
5057 /* Get the initial DCB configuration */
5058 err
= i40e_init_dcb(hw
);
5060 /* Device/Function is not DCBX capable */
5061 if ((!hw
->func_caps
.dcb
) ||
5062 (hw
->dcbx_status
== I40E_DCBX_STATUS_DISABLED
)) {
5063 dev_info(&pf
->pdev
->dev
,
5064 "DCBX offload is not supported or is disabled for this PF.\n");
5066 if (pf
->flags
& I40E_FLAG_MFP_ENABLED
)
5070 /* When status is not DISABLED then DCBX in FW */
5071 pf
->dcbx_cap
= DCB_CAP_DCBX_LLD_MANAGED
|
5072 DCB_CAP_DCBX_VER_IEEE
;
5074 pf
->flags
|= I40E_FLAG_DCB_CAPABLE
;
5075 /* Enable DCB tagging only when more than one TC */
5076 if (i40e_dcb_get_num_tc(&hw
->local_dcbx_config
) > 1)
5077 pf
->flags
|= I40E_FLAG_DCB_ENABLED
;
5078 dev_dbg(&pf
->pdev
->dev
,
5079 "DCBX offload is supported for this PF.\n");
5082 dev_info(&pf
->pdev
->dev
,
5083 "Query for DCB configuration failed, err %s aq_err %s\n",
5084 i40e_stat_str(&pf
->hw
, err
),
5085 i40e_aq_str(&pf
->hw
, pf
->hw
.aq
.asq_last_status
));
5091 #endif /* CONFIG_I40E_DCB */
5092 #define SPEED_SIZE 14
5095 * i40e_print_link_message - print link up or down
5096 * @vsi: the VSI for which link needs a message
5098 void i40e_print_link_message(struct i40e_vsi
*vsi
, bool isup
)
5100 char *speed
= "Unknown";
5101 char *fc
= "Unknown";
5103 if (vsi
->current_isup
== isup
)
5105 vsi
->current_isup
= isup
;
5107 netdev_info(vsi
->netdev
, "NIC Link is Down\n");
5111 /* Warn user if link speed on NPAR enabled partition is not at
5114 if (vsi
->back
->hw
.func_caps
.npar_enable
&&
5115 (vsi
->back
->hw
.phy
.link_info
.link_speed
== I40E_LINK_SPEED_1GB
||
5116 vsi
->back
->hw
.phy
.link_info
.link_speed
== I40E_LINK_SPEED_100MB
))
5117 netdev_warn(vsi
->netdev
,
5118 "The partition detected link speed that is less than 10Gbps\n");
5120 switch (vsi
->back
->hw
.phy
.link_info
.link_speed
) {
5121 case I40E_LINK_SPEED_40GB
:
5124 case I40E_LINK_SPEED_20GB
:
5127 case I40E_LINK_SPEED_10GB
:
5130 case I40E_LINK_SPEED_1GB
:
5133 case I40E_LINK_SPEED_100MB
:
5140 switch (vsi
->back
->hw
.fc
.current_mode
) {
5144 case I40E_FC_TX_PAUSE
:
5147 case I40E_FC_RX_PAUSE
:
5155 netdev_info(vsi
->netdev
, "NIC Link is Up %sbps Full Duplex, Flow Control: %s\n",
5160 * i40e_up_complete - Finish the last steps of bringing up a connection
5161 * @vsi: the VSI being configured
5163 static int i40e_up_complete(struct i40e_vsi
*vsi
)
5165 struct i40e_pf
*pf
= vsi
->back
;
5168 if (pf
->flags
& I40E_FLAG_MSIX_ENABLED
)
5169 i40e_vsi_configure_msix(vsi
);
5171 i40e_configure_msi_and_legacy(vsi
);
5174 err
= i40e_vsi_control_rings(vsi
, true);
5178 clear_bit(__I40E_DOWN
, &vsi
->state
);
5179 i40e_napi_enable_all(vsi
);
5180 i40e_vsi_enable_irq(vsi
);
5182 if ((pf
->hw
.phy
.link_info
.link_info
& I40E_AQ_LINK_UP
) &&
5184 i40e_print_link_message(vsi
, true);
5185 netif_tx_start_all_queues(vsi
->netdev
);
5186 netif_carrier_on(vsi
->netdev
);
5187 } else if (vsi
->netdev
) {
5188 i40e_print_link_message(vsi
, false);
5189 /* need to check for qualified module here*/
5190 if ((pf
->hw
.phy
.link_info
.link_info
&
5191 I40E_AQ_MEDIA_AVAILABLE
) &&
5192 (!(pf
->hw
.phy
.link_info
.an_info
&
5193 I40E_AQ_QUALIFIED_MODULE
)))
5194 netdev_err(vsi
->netdev
,
5195 "the driver failed to link because an unqualified module was detected.");
5198 /* replay FDIR SB filters */
5199 if (vsi
->type
== I40E_VSI_FDIR
) {
5200 /* reset fd counters */
5201 pf
->fd_add_err
= pf
->fd_atr_cnt
= 0;
5202 if (pf
->fd_tcp_rule
> 0) {
5203 pf
->flags
&= ~I40E_FLAG_FD_ATR_ENABLED
;
5204 if (I40E_DEBUG_FD
& pf
->hw
.debug_mask
)
5205 dev_info(&pf
->pdev
->dev
, "Forcing ATR off, sideband rules for TCP/IPv4 exist\n");
5206 pf
->fd_tcp_rule
= 0;
5208 i40e_fdir_filter_restore(vsi
);
5211 /* On the next run of the service_task, notify any clients of the new
5214 pf
->flags
|= I40E_FLAG_SERVICE_CLIENT_REQUESTED
;
5215 i40e_service_event_schedule(pf
);
5221 * i40e_vsi_reinit_locked - Reset the VSI
5222 * @vsi: the VSI being configured
5224 * Rebuild the ring structs after some configuration
5225 * has changed, e.g. MTU size.
5227 static void i40e_vsi_reinit_locked(struct i40e_vsi
*vsi
)
5229 struct i40e_pf
*pf
= vsi
->back
;
5231 WARN_ON(in_interrupt());
5232 while (test_and_set_bit(__I40E_CONFIG_BUSY
, &pf
->state
))
5233 usleep_range(1000, 2000);
5236 /* Give a VF some time to respond to the reset. The
5237 * two second wait is based upon the watchdog cycle in
5240 if (vsi
->type
== I40E_VSI_SRIOV
)
5243 clear_bit(__I40E_CONFIG_BUSY
, &pf
->state
);
5247 * i40e_up - Bring the connection back up after being down
5248 * @vsi: the VSI being configured
5250 int i40e_up(struct i40e_vsi
*vsi
)
5254 err
= i40e_vsi_configure(vsi
);
5256 err
= i40e_up_complete(vsi
);
5262 * i40e_down - Shutdown the connection processing
5263 * @vsi: the VSI being stopped
5265 void i40e_down(struct i40e_vsi
*vsi
)
5269 /* It is assumed that the caller of this function
5270 * sets the vsi->state __I40E_DOWN bit.
5273 netif_carrier_off(vsi
->netdev
);
5274 netif_tx_disable(vsi
->netdev
);
5276 i40e_vsi_disable_irq(vsi
);
5277 i40e_vsi_control_rings(vsi
, false);
5278 i40e_napi_disable_all(vsi
);
5280 for (i
= 0; i
< vsi
->num_queue_pairs
; i
++) {
5281 i40e_clean_tx_ring(vsi
->tx_rings
[i
]);
5282 i40e_clean_rx_ring(vsi
->rx_rings
[i
]);
5287 * i40e_setup_tc - configure multiple traffic classes
5288 * @netdev: net device to configure
5289 * @tc: number of traffic classes to enable
5291 static int i40e_setup_tc(struct net_device
*netdev
, u8 tc
)
5293 struct i40e_netdev_priv
*np
= netdev_priv(netdev
);
5294 struct i40e_vsi
*vsi
= np
->vsi
;
5295 struct i40e_pf
*pf
= vsi
->back
;
5300 /* Check if DCB enabled to continue */
5301 if (!(pf
->flags
& I40E_FLAG_DCB_ENABLED
)) {
5302 netdev_info(netdev
, "DCB is not enabled for adapter\n");
5306 /* Check if MFP enabled */
5307 if (pf
->flags
& I40E_FLAG_MFP_ENABLED
) {
5308 netdev_info(netdev
, "Configuring TC not supported in MFP mode\n");
5312 /* Check whether tc count is within enabled limit */
5313 if (tc
> i40e_pf_get_num_tc(pf
)) {
5314 netdev_info(netdev
, "TC count greater than enabled on link for adapter\n");
5318 /* Generate TC map for number of tc requested */
5319 for (i
= 0; i
< tc
; i
++)
5320 enabled_tc
|= BIT(i
);
5322 /* Requesting same TC configuration as already enabled */
5323 if (enabled_tc
== vsi
->tc_config
.enabled_tc
)
5326 /* Quiesce VSI queues */
5327 i40e_quiesce_vsi(vsi
);
5329 /* Configure VSI for enabled TCs */
5330 ret
= i40e_vsi_config_tc(vsi
, enabled_tc
);
5332 netdev_info(netdev
, "Failed configuring TC for VSI seid=%d\n",
5338 i40e_unquiesce_vsi(vsi
);
5345 int __i40e_setup_tc(struct net_device
*netdev
, u32 handle
, __be16 proto
,
5346 struct tc_to_netdev
*tc
)
5348 static int __i40e_setup_tc(struct net_device
*netdev
, u32 handle
, __be16 proto
,
5349 struct tc_to_netdev
*tc
)
5352 if (handle
!= TC_H_ROOT
|| tc
->type
!= TC_SETUP_MQPRIO
)
5354 return i40e_setup_tc(netdev
, tc
->tc
);
5358 * i40e_open - Called when a network interface is made active
5359 * @netdev: network interface device structure
5361 * The open entry point is called when a network interface is made
5362 * active by the system (IFF_UP). At this point all resources needed
5363 * for transmit and receive operations are allocated, the interrupt
5364 * handler is registered with the OS, the netdev watchdog subtask is
5365 * enabled, and the stack is notified that the interface is ready.
5367 * Returns 0 on success, negative value on failure
5369 int i40e_open(struct net_device
*netdev
)
5371 struct i40e_netdev_priv
*np
= netdev_priv(netdev
);
5372 struct i40e_vsi
*vsi
= np
->vsi
;
5373 struct i40e_pf
*pf
= vsi
->back
;
5376 /* disallow open during test or if eeprom is broken */
5377 if (test_bit(__I40E_TESTING
, &pf
->state
) ||
5378 test_bit(__I40E_BAD_EEPROM
, &pf
->state
))
5381 netif_carrier_off(netdev
);
5383 err
= i40e_vsi_open(vsi
);
5387 /* configure global TSO hardware offload settings */
5388 wr32(&pf
->hw
, I40E_GLLAN_TSOMSK_F
, be32_to_cpu(TCP_FLAG_PSH
|
5389 TCP_FLAG_FIN
) >> 16);
5390 wr32(&pf
->hw
, I40E_GLLAN_TSOMSK_M
, be32_to_cpu(TCP_FLAG_PSH
|
5392 TCP_FLAG_CWR
) >> 16);
5393 wr32(&pf
->hw
, I40E_GLLAN_TSOMSK_L
, be32_to_cpu(TCP_FLAG_CWR
) >> 16);
5395 #ifdef CONFIG_I40E_VXLAN
5396 vxlan_get_rx_port(netdev
);
5398 #ifdef CONFIG_I40E_GENEVE
5399 if (pf
->flags
& I40E_FLAG_GENEVE_OFFLOAD_CAPABLE
)
5400 geneve_get_rx_port(netdev
);
5403 i40e_notify_client_of_netdev_open(vsi
);
5410 * @vsi: the VSI to open
5412 * Finish initialization of the VSI.
5414 * Returns 0 on success, negative value on failure
5416 int i40e_vsi_open(struct i40e_vsi
*vsi
)
5418 struct i40e_pf
*pf
= vsi
->back
;
5419 char int_name
[I40E_INT_NAME_STR_LEN
];
5422 /* allocate descriptors */
5423 err
= i40e_vsi_setup_tx_resources(vsi
);
5426 err
= i40e_vsi_setup_rx_resources(vsi
);
5430 err
= i40e_vsi_configure(vsi
);
5435 snprintf(int_name
, sizeof(int_name
) - 1, "%s-%s",
5436 dev_driver_string(&pf
->pdev
->dev
), vsi
->netdev
->name
);
5437 err
= i40e_vsi_request_irq(vsi
, int_name
);
5441 /* Notify the stack of the actual queue counts. */
5442 err
= netif_set_real_num_tx_queues(vsi
->netdev
,
5443 vsi
->num_queue_pairs
);
5445 goto err_set_queues
;
5447 err
= netif_set_real_num_rx_queues(vsi
->netdev
,
5448 vsi
->num_queue_pairs
);
5450 goto err_set_queues
;
5452 } else if (vsi
->type
== I40E_VSI_FDIR
) {
5453 snprintf(int_name
, sizeof(int_name
) - 1, "%s-%s:fdir",
5454 dev_driver_string(&pf
->pdev
->dev
),
5455 dev_name(&pf
->pdev
->dev
));
5456 err
= i40e_vsi_request_irq(vsi
, int_name
);
5463 err
= i40e_up_complete(vsi
);
5465 goto err_up_complete
;
5472 i40e_vsi_free_irq(vsi
);
5474 i40e_vsi_free_rx_resources(vsi
);
5476 i40e_vsi_free_tx_resources(vsi
);
5477 if (vsi
== pf
->vsi
[pf
->lan_vsi
])
5478 i40e_do_reset(pf
, BIT_ULL(__I40E_PF_RESET_REQUESTED
));
5484 * i40e_fdir_filter_exit - Cleans up the Flow Director accounting
5485 * @pf: Pointer to PF
5487 * This function destroys the hlist where all the Flow Director
5488 * filters were saved.
5490 static void i40e_fdir_filter_exit(struct i40e_pf
*pf
)
5492 struct i40e_fdir_filter
*filter
;
5493 struct hlist_node
*node2
;
5495 hlist_for_each_entry_safe(filter
, node2
,
5496 &pf
->fdir_filter_list
, fdir_node
) {
5497 hlist_del(&filter
->fdir_node
);
5500 pf
->fdir_pf_active_filters
= 0;
5504 * i40e_close - Disables a network interface
5505 * @netdev: network interface device structure
5507 * The close entry point is called when an interface is de-activated
5508 * by the OS. The hardware is still under the driver's control, but
5509 * this netdev interface is disabled.
5511 * Returns 0, this is not allowed to fail
5513 int i40e_close(struct net_device
*netdev
)
5515 struct i40e_netdev_priv
*np
= netdev_priv(netdev
);
5516 struct i40e_vsi
*vsi
= np
->vsi
;
5518 i40e_vsi_close(vsi
);
5524 * i40e_do_reset - Start a PF or Core Reset sequence
5525 * @pf: board private structure
5526 * @reset_flags: which reset is requested
5528 * The essential difference in resets is that the PF Reset
5529 * doesn't clear the packet buffers, doesn't reset the PE
5530 * firmware, and doesn't bother the other PFs on the chip.
5532 void i40e_do_reset(struct i40e_pf
*pf
, u32 reset_flags
)
5536 WARN_ON(in_interrupt());
5539 /* do the biggest reset indicated */
5540 if (reset_flags
& BIT_ULL(__I40E_GLOBAL_RESET_REQUESTED
)) {
5542 /* Request a Global Reset
5544 * This will start the chip's countdown to the actual full
5545 * chip reset event, and a warning interrupt to be sent
5546 * to all PFs, including the requestor. Our handler
5547 * for the warning interrupt will deal with the shutdown
5548 * and recovery of the switch setup.
5550 dev_dbg(&pf
->pdev
->dev
, "GlobalR requested\n");
5551 val
= rd32(&pf
->hw
, I40E_GLGEN_RTRIG
);
5552 val
|= I40E_GLGEN_RTRIG_GLOBR_MASK
;
5553 wr32(&pf
->hw
, I40E_GLGEN_RTRIG
, val
);
5555 } else if (reset_flags
& BIT_ULL(__I40E_CORE_RESET_REQUESTED
)) {
5557 /* Request a Core Reset
5559 * Same as Global Reset, except does *not* include the MAC/PHY
5561 dev_dbg(&pf
->pdev
->dev
, "CoreR requested\n");
5562 val
= rd32(&pf
->hw
, I40E_GLGEN_RTRIG
);
5563 val
|= I40E_GLGEN_RTRIG_CORER_MASK
;
5564 wr32(&pf
->hw
, I40E_GLGEN_RTRIG
, val
);
5565 i40e_flush(&pf
->hw
);
5567 } else if (reset_flags
& BIT_ULL(__I40E_PF_RESET_REQUESTED
)) {
5569 /* Request a PF Reset
5571 * Resets only the PF-specific registers
5573 * This goes directly to the tear-down and rebuild of
5574 * the switch, since we need to do all the recovery as
5575 * for the Core Reset.
5577 dev_dbg(&pf
->pdev
->dev
, "PFR requested\n");
5578 i40e_handle_reset_warning(pf
);
5580 } else if (reset_flags
& BIT_ULL(__I40E_REINIT_REQUESTED
)) {
5583 /* Find the VSI(s) that requested a re-init */
5584 dev_info(&pf
->pdev
->dev
,
5585 "VSI reinit requested\n");
5586 for (v
= 0; v
< pf
->num_alloc_vsi
; v
++) {
5587 struct i40e_vsi
*vsi
= pf
->vsi
[v
];
5590 test_bit(__I40E_REINIT_REQUESTED
, &vsi
->state
)) {
5591 i40e_vsi_reinit_locked(pf
->vsi
[v
]);
5592 clear_bit(__I40E_REINIT_REQUESTED
, &vsi
->state
);
5595 } else if (reset_flags
& BIT_ULL(__I40E_DOWN_REQUESTED
)) {
5598 /* Find the VSI(s) that needs to be brought down */
5599 dev_info(&pf
->pdev
->dev
, "VSI down requested\n");
5600 for (v
= 0; v
< pf
->num_alloc_vsi
; v
++) {
5601 struct i40e_vsi
*vsi
= pf
->vsi
[v
];
5604 test_bit(__I40E_DOWN_REQUESTED
, &vsi
->state
)) {
5605 set_bit(__I40E_DOWN
, &vsi
->state
);
5607 clear_bit(__I40E_DOWN_REQUESTED
, &vsi
->state
);
5611 dev_info(&pf
->pdev
->dev
,
5612 "bad reset request 0x%08x\n", reset_flags
);
5616 #ifdef CONFIG_I40E_DCB
5618 * i40e_dcb_need_reconfig - Check if DCB needs reconfig
5619 * @pf: board private structure
5620 * @old_cfg: current DCB config
5621 * @new_cfg: new DCB config
5623 bool i40e_dcb_need_reconfig(struct i40e_pf
*pf
,
5624 struct i40e_dcbx_config
*old_cfg
,
5625 struct i40e_dcbx_config
*new_cfg
)
5627 bool need_reconfig
= false;
5629 /* Check if ETS configuration has changed */
5630 if (memcmp(&new_cfg
->etscfg
,
5632 sizeof(new_cfg
->etscfg
))) {
5633 /* If Priority Table has changed reconfig is needed */
5634 if (memcmp(&new_cfg
->etscfg
.prioritytable
,
5635 &old_cfg
->etscfg
.prioritytable
,
5636 sizeof(new_cfg
->etscfg
.prioritytable
))) {
5637 need_reconfig
= true;
5638 dev_dbg(&pf
->pdev
->dev
, "ETS UP2TC changed.\n");
5641 if (memcmp(&new_cfg
->etscfg
.tcbwtable
,
5642 &old_cfg
->etscfg
.tcbwtable
,
5643 sizeof(new_cfg
->etscfg
.tcbwtable
)))
5644 dev_dbg(&pf
->pdev
->dev
, "ETS TC BW Table changed.\n");
5646 if (memcmp(&new_cfg
->etscfg
.tsatable
,
5647 &old_cfg
->etscfg
.tsatable
,
5648 sizeof(new_cfg
->etscfg
.tsatable
)))
5649 dev_dbg(&pf
->pdev
->dev
, "ETS TSA Table changed.\n");
5652 /* Check if PFC configuration has changed */
5653 if (memcmp(&new_cfg
->pfc
,
5655 sizeof(new_cfg
->pfc
))) {
5656 need_reconfig
= true;
5657 dev_dbg(&pf
->pdev
->dev
, "PFC config change detected.\n");
5660 /* Check if APP Table has changed */
5661 if (memcmp(&new_cfg
->app
,
5663 sizeof(new_cfg
->app
))) {
5664 need_reconfig
= true;
5665 dev_dbg(&pf
->pdev
->dev
, "APP Table change detected.\n");
5668 dev_dbg(&pf
->pdev
->dev
, "dcb need_reconfig=%d\n", need_reconfig
);
5669 return need_reconfig
;
5673 * i40e_handle_lldp_event - Handle LLDP Change MIB event
5674 * @pf: board private structure
5675 * @e: event info posted on ARQ
5677 static int i40e_handle_lldp_event(struct i40e_pf
*pf
,
5678 struct i40e_arq_event_info
*e
)
5680 struct i40e_aqc_lldp_get_mib
*mib
=
5681 (struct i40e_aqc_lldp_get_mib
*)&e
->desc
.params
.raw
;
5682 struct i40e_hw
*hw
= &pf
->hw
;
5683 struct i40e_dcbx_config tmp_dcbx_cfg
;
5684 bool need_reconfig
= false;
5688 /* Not DCB capable or capability disabled */
5689 if (!(pf
->flags
& I40E_FLAG_DCB_CAPABLE
))
5692 /* Ignore if event is not for Nearest Bridge */
5693 type
= ((mib
->type
>> I40E_AQ_LLDP_BRIDGE_TYPE_SHIFT
)
5694 & I40E_AQ_LLDP_BRIDGE_TYPE_MASK
);
5695 dev_dbg(&pf
->pdev
->dev
, "LLDP event mib bridge type 0x%x\n", type
);
5696 if (type
!= I40E_AQ_LLDP_BRIDGE_TYPE_NEAREST_BRIDGE
)
5699 /* Check MIB Type and return if event for Remote MIB update */
5700 type
= mib
->type
& I40E_AQ_LLDP_MIB_TYPE_MASK
;
5701 dev_dbg(&pf
->pdev
->dev
,
5702 "LLDP event mib type %s\n", type
? "remote" : "local");
5703 if (type
== I40E_AQ_LLDP_MIB_REMOTE
) {
5704 /* Update the remote cached instance and return */
5705 ret
= i40e_aq_get_dcb_config(hw
, I40E_AQ_LLDP_MIB_REMOTE
,
5706 I40E_AQ_LLDP_BRIDGE_TYPE_NEAREST_BRIDGE
,
5707 &hw
->remote_dcbx_config
);
5711 /* Store the old configuration */
5712 tmp_dcbx_cfg
= hw
->local_dcbx_config
;
5714 /* Reset the old DCBx configuration data */
5715 memset(&hw
->local_dcbx_config
, 0, sizeof(hw
->local_dcbx_config
));
5716 /* Get updated DCBX data from firmware */
5717 ret
= i40e_get_dcb_config(&pf
->hw
);
5719 dev_info(&pf
->pdev
->dev
,
5720 "Failed querying DCB configuration data from firmware, err %s aq_err %s\n",
5721 i40e_stat_str(&pf
->hw
, ret
),
5722 i40e_aq_str(&pf
->hw
, pf
->hw
.aq
.asq_last_status
));
5726 /* No change detected in DCBX configs */
5727 if (!memcmp(&tmp_dcbx_cfg
, &hw
->local_dcbx_config
,
5728 sizeof(tmp_dcbx_cfg
))) {
5729 dev_dbg(&pf
->pdev
->dev
, "No change detected in DCBX configuration.\n");
5733 need_reconfig
= i40e_dcb_need_reconfig(pf
, &tmp_dcbx_cfg
,
5734 &hw
->local_dcbx_config
);
5736 i40e_dcbnl_flush_apps(pf
, &tmp_dcbx_cfg
, &hw
->local_dcbx_config
);
5741 /* Enable DCB tagging only when more than one TC */
5742 if (i40e_dcb_get_num_tc(&hw
->local_dcbx_config
) > 1)
5743 pf
->flags
|= I40E_FLAG_DCB_ENABLED
;
5745 pf
->flags
&= ~I40E_FLAG_DCB_ENABLED
;
5747 set_bit(__I40E_PORT_TX_SUSPENDED
, &pf
->state
);
5748 /* Reconfiguration needed quiesce all VSIs */
5749 i40e_pf_quiesce_all_vsi(pf
);
5751 /* Changes in configuration update VEB/VSI */
5752 i40e_dcb_reconfigure(pf
);
5754 ret
= i40e_resume_port_tx(pf
);
5756 clear_bit(__I40E_PORT_TX_SUSPENDED
, &pf
->state
);
5757 /* In case of error no point in resuming VSIs */
5761 /* Wait for the PF's queues to be disabled */
5762 ret
= i40e_pf_wait_queues_disabled(pf
);
5764 /* Schedule PF reset to recover */
5765 set_bit(__I40E_PF_RESET_REQUESTED
, &pf
->state
);
5766 i40e_service_event_schedule(pf
);
5768 i40e_pf_unquiesce_all_vsi(pf
);
5774 #endif /* CONFIG_I40E_DCB */
5777 * i40e_do_reset_safe - Protected reset path for userland calls.
5778 * @pf: board private structure
5779 * @reset_flags: which reset is requested
5782 void i40e_do_reset_safe(struct i40e_pf
*pf
, u32 reset_flags
)
5785 i40e_do_reset(pf
, reset_flags
);
5790 * i40e_handle_lan_overflow_event - Handler for LAN queue overflow event
5791 * @pf: board private structure
5792 * @e: event info posted on ARQ
5794 * Handler for LAN Queue Overflow Event generated by the firmware for PF
5797 static void i40e_handle_lan_overflow_event(struct i40e_pf
*pf
,
5798 struct i40e_arq_event_info
*e
)
5800 struct i40e_aqc_lan_overflow
*data
=
5801 (struct i40e_aqc_lan_overflow
*)&e
->desc
.params
.raw
;
5802 u32 queue
= le32_to_cpu(data
->prtdcb_rupto
);
5803 u32 qtx_ctl
= le32_to_cpu(data
->otx_ctl
);
5804 struct i40e_hw
*hw
= &pf
->hw
;
5808 dev_dbg(&pf
->pdev
->dev
, "overflow Rx Queue Number = %d QTX_CTL=0x%08x\n",
5811 /* Queue belongs to VF, find the VF and issue VF reset */
5812 if (((qtx_ctl
& I40E_QTX_CTL_PFVF_Q_MASK
)
5813 >> I40E_QTX_CTL_PFVF_Q_SHIFT
) == I40E_QTX_CTL_VF_QUEUE
) {
5814 vf_id
= (u16
)((qtx_ctl
& I40E_QTX_CTL_VFVM_INDX_MASK
)
5815 >> I40E_QTX_CTL_VFVM_INDX_SHIFT
);
5816 vf_id
-= hw
->func_caps
.vf_base_id
;
5817 vf
= &pf
->vf
[vf_id
];
5818 i40e_vc_notify_vf_reset(vf
);
5819 /* Allow VF to process pending reset notification */
5821 i40e_reset_vf(vf
, false);
5826 * i40e_service_event_complete - Finish up the service event
5827 * @pf: board private structure
5829 static void i40e_service_event_complete(struct i40e_pf
*pf
)
5831 WARN_ON(!test_bit(__I40E_SERVICE_SCHED
, &pf
->state
));
5833 /* flush memory to make sure state is correct before next watchog */
5834 smp_mb__before_atomic();
5835 clear_bit(__I40E_SERVICE_SCHED
, &pf
->state
);
5839 * i40e_get_cur_guaranteed_fd_count - Get the consumed guaranteed FD filters
5840 * @pf: board private structure
5842 u32
i40e_get_cur_guaranteed_fd_count(struct i40e_pf
*pf
)
5846 val
= rd32(&pf
->hw
, I40E_PFQF_FDSTAT
);
5847 fcnt_prog
= (val
& I40E_PFQF_FDSTAT_GUARANT_CNT_MASK
);
5852 * i40e_get_current_fd_count - Get total FD filters programmed for this PF
5853 * @pf: board private structure
5855 u32
i40e_get_current_fd_count(struct i40e_pf
*pf
)
5859 val
= rd32(&pf
->hw
, I40E_PFQF_FDSTAT
);
5860 fcnt_prog
= (val
& I40E_PFQF_FDSTAT_GUARANT_CNT_MASK
) +
5861 ((val
& I40E_PFQF_FDSTAT_BEST_CNT_MASK
) >>
5862 I40E_PFQF_FDSTAT_BEST_CNT_SHIFT
);
5867 * i40e_get_global_fd_count - Get total FD filters programmed on device
5868 * @pf: board private structure
5870 u32
i40e_get_global_fd_count(struct i40e_pf
*pf
)
5874 val
= rd32(&pf
->hw
, I40E_GLQF_FDCNT_0
);
5875 fcnt_prog
= (val
& I40E_GLQF_FDCNT_0_GUARANT_CNT_MASK
) +
5876 ((val
& I40E_GLQF_FDCNT_0_BESTCNT_MASK
) >>
5877 I40E_GLQF_FDCNT_0_BESTCNT_SHIFT
);
5882 * i40e_fdir_check_and_reenable - Function to reenabe FD ATR or SB if disabled
5883 * @pf: board private structure
5885 void i40e_fdir_check_and_reenable(struct i40e_pf
*pf
)
5887 struct i40e_fdir_filter
*filter
;
5888 u32 fcnt_prog
, fcnt_avail
;
5889 struct hlist_node
*node
;
5891 if (test_bit(__I40E_FD_FLUSH_REQUESTED
, &pf
->state
))
5894 /* Check if, FD SB or ATR was auto disabled and if there is enough room
5897 fcnt_prog
= i40e_get_global_fd_count(pf
);
5898 fcnt_avail
= pf
->fdir_pf_filter_count
;
5899 if ((fcnt_prog
< (fcnt_avail
- I40E_FDIR_BUFFER_HEAD_ROOM
)) ||
5900 (pf
->fd_add_err
== 0) ||
5901 (i40e_get_current_atr_cnt(pf
) < pf
->fd_atr_cnt
)) {
5902 if ((pf
->flags
& I40E_FLAG_FD_SB_ENABLED
) &&
5903 (pf
->auto_disable_flags
& I40E_FLAG_FD_SB_ENABLED
)) {
5904 pf
->auto_disable_flags
&= ~I40E_FLAG_FD_SB_ENABLED
;
5905 if (I40E_DEBUG_FD
& pf
->hw
.debug_mask
)
5906 dev_info(&pf
->pdev
->dev
, "FD Sideband/ntuple is being enabled since we have space in the table now\n");
5909 /* Wait for some more space to be available to turn on ATR */
5910 if (fcnt_prog
< (fcnt_avail
- I40E_FDIR_BUFFER_HEAD_ROOM
* 2)) {
5911 if ((pf
->flags
& I40E_FLAG_FD_ATR_ENABLED
) &&
5912 (pf
->auto_disable_flags
& I40E_FLAG_FD_ATR_ENABLED
)) {
5913 pf
->auto_disable_flags
&= ~I40E_FLAG_FD_ATR_ENABLED
;
5914 if (I40E_DEBUG_FD
& pf
->hw
.debug_mask
)
5915 dev_info(&pf
->pdev
->dev
, "ATR is being enabled since we have space in the table now\n");
5919 /* if hw had a problem adding a filter, delete it */
5920 if (pf
->fd_inv
> 0) {
5921 hlist_for_each_entry_safe(filter
, node
,
5922 &pf
->fdir_filter_list
, fdir_node
) {
5923 if (filter
->fd_id
== pf
->fd_inv
) {
5924 hlist_del(&filter
->fdir_node
);
5926 pf
->fdir_pf_active_filters
--;
5932 #define I40E_MIN_FD_FLUSH_INTERVAL 10
5933 #define I40E_MIN_FD_FLUSH_SB_ATR_UNSTABLE 30
5935 * i40e_fdir_flush_and_replay - Function to flush all FD filters and replay SB
5936 * @pf: board private structure
5938 static void i40e_fdir_flush_and_replay(struct i40e_pf
*pf
)
5940 unsigned long min_flush_time
;
5941 int flush_wait_retry
= 50;
5942 bool disable_atr
= false;
5946 if (!(pf
->flags
& (I40E_FLAG_FD_SB_ENABLED
| I40E_FLAG_FD_ATR_ENABLED
)))
5949 if (!time_after(jiffies
, pf
->fd_flush_timestamp
+
5950 (I40E_MIN_FD_FLUSH_INTERVAL
* HZ
)))
5953 /* If the flush is happening too quick and we have mostly SB rules we
5954 * should not re-enable ATR for some time.
5956 min_flush_time
= pf
->fd_flush_timestamp
+
5957 (I40E_MIN_FD_FLUSH_SB_ATR_UNSTABLE
* HZ
);
5958 fd_room
= pf
->fdir_pf_filter_count
- pf
->fdir_pf_active_filters
;
5960 if (!(time_after(jiffies
, min_flush_time
)) &&
5961 (fd_room
< I40E_FDIR_BUFFER_HEAD_ROOM_FOR_ATR
)) {
5962 if (I40E_DEBUG_FD
& pf
->hw
.debug_mask
)
5963 dev_info(&pf
->pdev
->dev
, "ATR disabled, not enough FD filter space.\n");
5967 pf
->fd_flush_timestamp
= jiffies
;
5968 pf
->flags
&= ~I40E_FLAG_FD_ATR_ENABLED
;
5969 /* flush all filters */
5970 wr32(&pf
->hw
, I40E_PFQF_CTL_1
,
5971 I40E_PFQF_CTL_1_CLEARFDTABLE_MASK
);
5972 i40e_flush(&pf
->hw
);
5976 /* Check FD flush status every 5-6msec */
5977 usleep_range(5000, 6000);
5978 reg
= rd32(&pf
->hw
, I40E_PFQF_CTL_1
);
5979 if (!(reg
& I40E_PFQF_CTL_1_CLEARFDTABLE_MASK
))
5981 } while (flush_wait_retry
--);
5982 if (reg
& I40E_PFQF_CTL_1_CLEARFDTABLE_MASK
) {
5983 dev_warn(&pf
->pdev
->dev
, "FD table did not flush, needs more time\n");
5985 /* replay sideband filters */
5986 i40e_fdir_filter_restore(pf
->vsi
[pf
->lan_vsi
]);
5988 pf
->flags
|= I40E_FLAG_FD_ATR_ENABLED
;
5989 clear_bit(__I40E_FD_FLUSH_REQUESTED
, &pf
->state
);
5990 if (I40E_DEBUG_FD
& pf
->hw
.debug_mask
)
5991 dev_info(&pf
->pdev
->dev
, "FD Filter table flushed and FD-SB replayed.\n");
5997 * i40e_get_current_atr_count - Get the count of total FD ATR filters programmed
5998 * @pf: board private structure
6000 u32
i40e_get_current_atr_cnt(struct i40e_pf
*pf
)
6002 return i40e_get_current_fd_count(pf
) - pf
->fdir_pf_active_filters
;
6005 /* We can see up to 256 filter programming desc in transit if the filters are
6006 * being applied really fast; before we see the first
6007 * filter miss error on Rx queue 0. Accumulating enough error messages before
6008 * reacting will make sure we don't cause flush too often.
6010 #define I40E_MAX_FD_PROGRAM_ERROR 256
6013 * i40e_fdir_reinit_subtask - Worker thread to reinit FDIR filter table
6014 * @pf: board private structure
6016 static void i40e_fdir_reinit_subtask(struct i40e_pf
*pf
)
6019 /* if interface is down do nothing */
6020 if (test_bit(__I40E_DOWN
, &pf
->state
))
6023 if (!(pf
->flags
& (I40E_FLAG_FD_SB_ENABLED
| I40E_FLAG_FD_ATR_ENABLED
)))
6026 if (test_bit(__I40E_FD_FLUSH_REQUESTED
, &pf
->state
))
6027 i40e_fdir_flush_and_replay(pf
);
6029 i40e_fdir_check_and_reenable(pf
);
6034 * i40e_vsi_link_event - notify VSI of a link event
6035 * @vsi: vsi to be notified
6036 * @link_up: link up or down
6038 static void i40e_vsi_link_event(struct i40e_vsi
*vsi
, bool link_up
)
6040 if (!vsi
|| test_bit(__I40E_DOWN
, &vsi
->state
))
6043 switch (vsi
->type
) {
6048 if (!vsi
->netdev
|| !vsi
->netdev_registered
)
6052 netif_carrier_on(vsi
->netdev
);
6053 netif_tx_wake_all_queues(vsi
->netdev
);
6055 netif_carrier_off(vsi
->netdev
);
6056 netif_tx_stop_all_queues(vsi
->netdev
);
6060 case I40E_VSI_SRIOV
:
6061 case I40E_VSI_VMDQ2
:
6063 case I40E_VSI_IWARP
:
6064 case I40E_VSI_MIRROR
:
6066 /* there is no notification for other VSIs */
6072 * i40e_veb_link_event - notify elements on the veb of a link event
6073 * @veb: veb to be notified
6074 * @link_up: link up or down
6076 static void i40e_veb_link_event(struct i40e_veb
*veb
, bool link_up
)
6081 if (!veb
|| !veb
->pf
)
6085 /* depth first... */
6086 for (i
= 0; i
< I40E_MAX_VEB
; i
++)
6087 if (pf
->veb
[i
] && (pf
->veb
[i
]->uplink_seid
== veb
->seid
))
6088 i40e_veb_link_event(pf
->veb
[i
], link_up
);
6090 /* ... now the local VSIs */
6091 for (i
= 0; i
< pf
->num_alloc_vsi
; i
++)
6092 if (pf
->vsi
[i
] && (pf
->vsi
[i
]->uplink_seid
== veb
->seid
))
6093 i40e_vsi_link_event(pf
->vsi
[i
], link_up
);
6097 * i40e_link_event - Update netif_carrier status
6098 * @pf: board private structure
6100 static void i40e_link_event(struct i40e_pf
*pf
)
6102 struct i40e_vsi
*vsi
= pf
->vsi
[pf
->lan_vsi
];
6103 u8 new_link_speed
, old_link_speed
;
6105 bool new_link
, old_link
;
6107 /* save off old link status information */
6108 pf
->hw
.phy
.link_info_old
= pf
->hw
.phy
.link_info
;
6110 /* set this to force the get_link_status call to refresh state */
6111 pf
->hw
.phy
.get_link_info
= true;
6113 old_link
= (pf
->hw
.phy
.link_info_old
.link_info
& I40E_AQ_LINK_UP
);
6115 status
= i40e_get_link_status(&pf
->hw
, &new_link
);
6117 dev_dbg(&pf
->pdev
->dev
, "couldn't get link state, status: %d\n",
6122 old_link_speed
= pf
->hw
.phy
.link_info_old
.link_speed
;
6123 new_link_speed
= pf
->hw
.phy
.link_info
.link_speed
;
6125 if (new_link
== old_link
&&
6126 new_link_speed
== old_link_speed
&&
6127 (test_bit(__I40E_DOWN
, &vsi
->state
) ||
6128 new_link
== netif_carrier_ok(vsi
->netdev
)))
6131 if (!test_bit(__I40E_DOWN
, &vsi
->state
))
6132 i40e_print_link_message(vsi
, new_link
);
6134 /* Notify the base of the switch tree connected to
6135 * the link. Floating VEBs are not notified.
6137 if (pf
->lan_veb
!= I40E_NO_VEB
&& pf
->veb
[pf
->lan_veb
])
6138 i40e_veb_link_event(pf
->veb
[pf
->lan_veb
], new_link
);
6140 i40e_vsi_link_event(vsi
, new_link
);
6143 i40e_vc_notify_link_state(pf
);
6145 if (pf
->flags
& I40E_FLAG_PTP
)
6146 i40e_ptp_set_increment(pf
);
6150 * i40e_watchdog_subtask - periodic checks not using event driven response
6151 * @pf: board private structure
6153 static void i40e_watchdog_subtask(struct i40e_pf
*pf
)
6157 /* if interface is down do nothing */
6158 if (test_bit(__I40E_DOWN
, &pf
->state
) ||
6159 test_bit(__I40E_CONFIG_BUSY
, &pf
->state
))
6162 /* make sure we don't do these things too often */
6163 if (time_before(jiffies
, (pf
->service_timer_previous
+
6164 pf
->service_timer_period
)))
6166 pf
->service_timer_previous
= jiffies
;
6168 if (pf
->flags
& I40E_FLAG_LINK_POLLING_ENABLED
)
6169 i40e_link_event(pf
);
6171 /* Update the stats for active netdevs so the network stack
6172 * can look at updated numbers whenever it cares to
6174 for (i
= 0; i
< pf
->num_alloc_vsi
; i
++)
6175 if (pf
->vsi
[i
] && pf
->vsi
[i
]->netdev
)
6176 i40e_update_stats(pf
->vsi
[i
]);
6178 if (pf
->flags
& I40E_FLAG_VEB_STATS_ENABLED
) {
6179 /* Update the stats for the active switching components */
6180 for (i
= 0; i
< I40E_MAX_VEB
; i
++)
6182 i40e_update_veb_stats(pf
->veb
[i
]);
6185 i40e_ptp_rx_hang(pf
->vsi
[pf
->lan_vsi
]);
6189 * i40e_reset_subtask - Set up for resetting the device and driver
6190 * @pf: board private structure
6192 static void i40e_reset_subtask(struct i40e_pf
*pf
)
6194 u32 reset_flags
= 0;
6197 if (test_bit(__I40E_REINIT_REQUESTED
, &pf
->state
)) {
6198 reset_flags
|= BIT(__I40E_REINIT_REQUESTED
);
6199 clear_bit(__I40E_REINIT_REQUESTED
, &pf
->state
);
6201 if (test_bit(__I40E_PF_RESET_REQUESTED
, &pf
->state
)) {
6202 reset_flags
|= BIT(__I40E_PF_RESET_REQUESTED
);
6203 clear_bit(__I40E_PF_RESET_REQUESTED
, &pf
->state
);
6205 if (test_bit(__I40E_CORE_RESET_REQUESTED
, &pf
->state
)) {
6206 reset_flags
|= BIT(__I40E_CORE_RESET_REQUESTED
);
6207 clear_bit(__I40E_CORE_RESET_REQUESTED
, &pf
->state
);
6209 if (test_bit(__I40E_GLOBAL_RESET_REQUESTED
, &pf
->state
)) {
6210 reset_flags
|= BIT(__I40E_GLOBAL_RESET_REQUESTED
);
6211 clear_bit(__I40E_GLOBAL_RESET_REQUESTED
, &pf
->state
);
6213 if (test_bit(__I40E_DOWN_REQUESTED
, &pf
->state
)) {
6214 reset_flags
|= BIT(__I40E_DOWN_REQUESTED
);
6215 clear_bit(__I40E_DOWN_REQUESTED
, &pf
->state
);
6218 /* If there's a recovery already waiting, it takes
6219 * precedence before starting a new reset sequence.
6221 if (test_bit(__I40E_RESET_INTR_RECEIVED
, &pf
->state
)) {
6222 i40e_handle_reset_warning(pf
);
6226 /* If we're already down or resetting, just bail */
6228 !test_bit(__I40E_DOWN
, &pf
->state
) &&
6229 !test_bit(__I40E_CONFIG_BUSY
, &pf
->state
))
6230 i40e_do_reset(pf
, reset_flags
);
6237 * i40e_handle_link_event - Handle link event
6238 * @pf: board private structure
6239 * @e: event info posted on ARQ
6241 static void i40e_handle_link_event(struct i40e_pf
*pf
,
6242 struct i40e_arq_event_info
*e
)
6244 struct i40e_aqc_get_link_status
*status
=
6245 (struct i40e_aqc_get_link_status
*)&e
->desc
.params
.raw
;
6247 /* Do a new status request to re-enable LSE reporting
6248 * and load new status information into the hw struct
6249 * This completely ignores any state information
6250 * in the ARQ event info, instead choosing to always
6251 * issue the AQ update link status command.
6253 i40e_link_event(pf
);
6255 /* check for unqualified module, if link is down */
6256 if ((status
->link_info
& I40E_AQ_MEDIA_AVAILABLE
) &&
6257 (!(status
->an_info
& I40E_AQ_QUALIFIED_MODULE
)) &&
6258 (!(status
->link_info
& I40E_AQ_LINK_UP
)))
6259 dev_err(&pf
->pdev
->dev
,
6260 "The driver failed to link because an unqualified module was detected.\n");
6264 * i40e_clean_adminq_subtask - Clean the AdminQ rings
6265 * @pf: board private structure
6267 static void i40e_clean_adminq_subtask(struct i40e_pf
*pf
)
6269 struct i40e_arq_event_info event
;
6270 struct i40e_hw
*hw
= &pf
->hw
;
6277 /* Do not run clean AQ when PF reset fails */
6278 if (test_bit(__I40E_RESET_FAILED
, &pf
->state
))
6281 /* check for error indications */
6282 val
= rd32(&pf
->hw
, pf
->hw
.aq
.arq
.len
);
6284 if (val
& I40E_PF_ARQLEN_ARQVFE_MASK
) {
6285 if (hw
->debug_mask
& I40E_DEBUG_AQ
)
6286 dev_info(&pf
->pdev
->dev
, "ARQ VF Error detected\n");
6287 val
&= ~I40E_PF_ARQLEN_ARQVFE_MASK
;
6289 if (val
& I40E_PF_ARQLEN_ARQOVFL_MASK
) {
6290 if (hw
->debug_mask
& I40E_DEBUG_AQ
)
6291 dev_info(&pf
->pdev
->dev
, "ARQ Overflow Error detected\n");
6292 val
&= ~I40E_PF_ARQLEN_ARQOVFL_MASK
;
6293 pf
->arq_overflows
++;
6295 if (val
& I40E_PF_ARQLEN_ARQCRIT_MASK
) {
6296 if (hw
->debug_mask
& I40E_DEBUG_AQ
)
6297 dev_info(&pf
->pdev
->dev
, "ARQ Critical Error detected\n");
6298 val
&= ~I40E_PF_ARQLEN_ARQCRIT_MASK
;
6301 wr32(&pf
->hw
, pf
->hw
.aq
.arq
.len
, val
);
6303 val
= rd32(&pf
->hw
, pf
->hw
.aq
.asq
.len
);
6305 if (val
& I40E_PF_ATQLEN_ATQVFE_MASK
) {
6306 if (pf
->hw
.debug_mask
& I40E_DEBUG_AQ
)
6307 dev_info(&pf
->pdev
->dev
, "ASQ VF Error detected\n");
6308 val
&= ~I40E_PF_ATQLEN_ATQVFE_MASK
;
6310 if (val
& I40E_PF_ATQLEN_ATQOVFL_MASK
) {
6311 if (pf
->hw
.debug_mask
& I40E_DEBUG_AQ
)
6312 dev_info(&pf
->pdev
->dev
, "ASQ Overflow Error detected\n");
6313 val
&= ~I40E_PF_ATQLEN_ATQOVFL_MASK
;
6315 if (val
& I40E_PF_ATQLEN_ATQCRIT_MASK
) {
6316 if (pf
->hw
.debug_mask
& I40E_DEBUG_AQ
)
6317 dev_info(&pf
->pdev
->dev
, "ASQ Critical Error detected\n");
6318 val
&= ~I40E_PF_ATQLEN_ATQCRIT_MASK
;
6321 wr32(&pf
->hw
, pf
->hw
.aq
.asq
.len
, val
);
6323 event
.buf_len
= I40E_MAX_AQ_BUF_SIZE
;
6324 event
.msg_buf
= kzalloc(event
.buf_len
, GFP_KERNEL
);
6329 ret
= i40e_clean_arq_element(hw
, &event
, &pending
);
6330 if (ret
== I40E_ERR_ADMIN_QUEUE_NO_WORK
)
6333 dev_info(&pf
->pdev
->dev
, "ARQ event error %d\n", ret
);
6337 opcode
= le16_to_cpu(event
.desc
.opcode
);
6340 case i40e_aqc_opc_get_link_status
:
6341 i40e_handle_link_event(pf
, &event
);
6343 case i40e_aqc_opc_send_msg_to_pf
:
6344 ret
= i40e_vc_process_vf_msg(pf
,
6345 le16_to_cpu(event
.desc
.retval
),
6346 le32_to_cpu(event
.desc
.cookie_high
),
6347 le32_to_cpu(event
.desc
.cookie_low
),
6351 case i40e_aqc_opc_lldp_update_mib
:
6352 dev_dbg(&pf
->pdev
->dev
, "ARQ: Update LLDP MIB event received\n");
6353 #ifdef CONFIG_I40E_DCB
6355 ret
= i40e_handle_lldp_event(pf
, &event
);
6357 #endif /* CONFIG_I40E_DCB */
6359 case i40e_aqc_opc_event_lan_overflow
:
6360 dev_dbg(&pf
->pdev
->dev
, "ARQ LAN queue overflow event received\n");
6361 i40e_handle_lan_overflow_event(pf
, &event
);
6363 case i40e_aqc_opc_send_msg_to_peer
:
6364 dev_info(&pf
->pdev
->dev
, "ARQ: Msg from other pf\n");
6366 case i40e_aqc_opc_nvm_erase
:
6367 case i40e_aqc_opc_nvm_update
:
6368 case i40e_aqc_opc_oem_post_update
:
6369 i40e_debug(&pf
->hw
, I40E_DEBUG_NVM
,
6370 "ARQ NVM operation 0x%04x completed\n",
6374 dev_info(&pf
->pdev
->dev
,
6375 "ARQ: Unknown event 0x%04x ignored\n",
6379 } while (pending
&& (i
++ < pf
->adminq_work_limit
));
6381 clear_bit(__I40E_ADMINQ_EVENT_PENDING
, &pf
->state
);
6382 /* re-enable Admin queue interrupt cause */
6383 val
= rd32(hw
, I40E_PFINT_ICR0_ENA
);
6384 val
|= I40E_PFINT_ICR0_ENA_ADMINQ_MASK
;
6385 wr32(hw
, I40E_PFINT_ICR0_ENA
, val
);
6388 kfree(event
.msg_buf
);
6392 * i40e_verify_eeprom - make sure eeprom is good to use
6393 * @pf: board private structure
6395 static void i40e_verify_eeprom(struct i40e_pf
*pf
)
6399 err
= i40e_diag_eeprom_test(&pf
->hw
);
6401 /* retry in case of garbage read */
6402 err
= i40e_diag_eeprom_test(&pf
->hw
);
6404 dev_info(&pf
->pdev
->dev
, "eeprom check failed (%d), Tx/Rx traffic disabled\n",
6406 set_bit(__I40E_BAD_EEPROM
, &pf
->state
);
6410 if (!err
&& test_bit(__I40E_BAD_EEPROM
, &pf
->state
)) {
6411 dev_info(&pf
->pdev
->dev
, "eeprom check passed, Tx/Rx traffic enabled\n");
6412 clear_bit(__I40E_BAD_EEPROM
, &pf
->state
);
6417 * i40e_enable_pf_switch_lb
6418 * @pf: pointer to the PF structure
6420 * enable switch loop back or die - no point in a return value
6422 static void i40e_enable_pf_switch_lb(struct i40e_pf
*pf
)
6424 struct i40e_vsi
*vsi
= pf
->vsi
[pf
->lan_vsi
];
6425 struct i40e_vsi_context ctxt
;
6428 ctxt
.seid
= pf
->main_vsi_seid
;
6429 ctxt
.pf_num
= pf
->hw
.pf_id
;
6431 ret
= i40e_aq_get_vsi_params(&pf
->hw
, &ctxt
, NULL
);
6433 dev_info(&pf
->pdev
->dev
,
6434 "couldn't get PF vsi config, err %s aq_err %s\n",
6435 i40e_stat_str(&pf
->hw
, ret
),
6436 i40e_aq_str(&pf
->hw
, pf
->hw
.aq
.asq_last_status
));
6439 ctxt
.flags
= I40E_AQ_VSI_TYPE_PF
;
6440 ctxt
.info
.valid_sections
= cpu_to_le16(I40E_AQ_VSI_PROP_SWITCH_VALID
);
6441 ctxt
.info
.switch_id
|= cpu_to_le16(I40E_AQ_VSI_SW_ID_FLAG_ALLOW_LB
);
6443 ret
= i40e_aq_update_vsi_params(&vsi
->back
->hw
, &ctxt
, NULL
);
6445 dev_info(&pf
->pdev
->dev
,
6446 "update vsi switch failed, err %s aq_err %s\n",
6447 i40e_stat_str(&pf
->hw
, ret
),
6448 i40e_aq_str(&pf
->hw
, pf
->hw
.aq
.asq_last_status
));
6453 * i40e_disable_pf_switch_lb
6454 * @pf: pointer to the PF structure
6456 * disable switch loop back or die - no point in a return value
6458 static void i40e_disable_pf_switch_lb(struct i40e_pf
*pf
)
6460 struct i40e_vsi
*vsi
= pf
->vsi
[pf
->lan_vsi
];
6461 struct i40e_vsi_context ctxt
;
6464 ctxt
.seid
= pf
->main_vsi_seid
;
6465 ctxt
.pf_num
= pf
->hw
.pf_id
;
6467 ret
= i40e_aq_get_vsi_params(&pf
->hw
, &ctxt
, NULL
);
6469 dev_info(&pf
->pdev
->dev
,
6470 "couldn't get PF vsi config, err %s aq_err %s\n",
6471 i40e_stat_str(&pf
->hw
, ret
),
6472 i40e_aq_str(&pf
->hw
, pf
->hw
.aq
.asq_last_status
));
6475 ctxt
.flags
= I40E_AQ_VSI_TYPE_PF
;
6476 ctxt
.info
.valid_sections
= cpu_to_le16(I40E_AQ_VSI_PROP_SWITCH_VALID
);
6477 ctxt
.info
.switch_id
&= ~cpu_to_le16(I40E_AQ_VSI_SW_ID_FLAG_ALLOW_LB
);
6479 ret
= i40e_aq_update_vsi_params(&vsi
->back
->hw
, &ctxt
, NULL
);
6481 dev_info(&pf
->pdev
->dev
,
6482 "update vsi switch failed, err %s aq_err %s\n",
6483 i40e_stat_str(&pf
->hw
, ret
),
6484 i40e_aq_str(&pf
->hw
, pf
->hw
.aq
.asq_last_status
));
6489 * i40e_config_bridge_mode - Configure the HW bridge mode
6490 * @veb: pointer to the bridge instance
6492 * Configure the loop back mode for the LAN VSI that is downlink to the
6493 * specified HW bridge instance. It is expected this function is called
6494 * when a new HW bridge is instantiated.
6496 static void i40e_config_bridge_mode(struct i40e_veb
*veb
)
6498 struct i40e_pf
*pf
= veb
->pf
;
6500 if (pf
->hw
.debug_mask
& I40E_DEBUG_LAN
)
6501 dev_info(&pf
->pdev
->dev
, "enabling bridge mode: %s\n",
6502 veb
->bridge_mode
== BRIDGE_MODE_VEPA
? "VEPA" : "VEB");
6503 if (veb
->bridge_mode
& BRIDGE_MODE_VEPA
)
6504 i40e_disable_pf_switch_lb(pf
);
6506 i40e_enable_pf_switch_lb(pf
);
6510 * i40e_reconstitute_veb - rebuild the VEB and anything connected to it
6511 * @veb: pointer to the VEB instance
6513 * This is a recursive function that first builds the attached VSIs then
6514 * recurses in to build the next layer of VEB. We track the connections
6515 * through our own index numbers because the seid's from the HW could
6516 * change across the reset.
6518 static int i40e_reconstitute_veb(struct i40e_veb
*veb
)
6520 struct i40e_vsi
*ctl_vsi
= NULL
;
6521 struct i40e_pf
*pf
= veb
->pf
;
6525 /* build VSI that owns this VEB, temporarily attached to base VEB */
6526 for (v
= 0; v
< pf
->num_alloc_vsi
&& !ctl_vsi
; v
++) {
6528 pf
->vsi
[v
]->veb_idx
== veb
->idx
&&
6529 pf
->vsi
[v
]->flags
& I40E_VSI_FLAG_VEB_OWNER
) {
6530 ctl_vsi
= pf
->vsi
[v
];
6535 dev_info(&pf
->pdev
->dev
,
6536 "missing owner VSI for veb_idx %d\n", veb
->idx
);
6538 goto end_reconstitute
;
6540 if (ctl_vsi
!= pf
->vsi
[pf
->lan_vsi
])
6541 ctl_vsi
->uplink_seid
= pf
->vsi
[pf
->lan_vsi
]->uplink_seid
;
6542 ret
= i40e_add_vsi(ctl_vsi
);
6544 dev_info(&pf
->pdev
->dev
,
6545 "rebuild of veb_idx %d owner VSI failed: %d\n",
6547 goto end_reconstitute
;
6549 i40e_vsi_reset_stats(ctl_vsi
);
6551 /* create the VEB in the switch and move the VSI onto the VEB */
6552 ret
= i40e_add_veb(veb
, ctl_vsi
);
6554 goto end_reconstitute
;
6556 if (pf
->flags
& I40E_FLAG_VEB_MODE_ENABLED
)
6557 veb
->bridge_mode
= BRIDGE_MODE_VEB
;
6559 veb
->bridge_mode
= BRIDGE_MODE_VEPA
;
6560 i40e_config_bridge_mode(veb
);
6562 /* create the remaining VSIs attached to this VEB */
6563 for (v
= 0; v
< pf
->num_alloc_vsi
; v
++) {
6564 if (!pf
->vsi
[v
] || pf
->vsi
[v
] == ctl_vsi
)
6567 if (pf
->vsi
[v
]->veb_idx
== veb
->idx
) {
6568 struct i40e_vsi
*vsi
= pf
->vsi
[v
];
6570 vsi
->uplink_seid
= veb
->seid
;
6571 ret
= i40e_add_vsi(vsi
);
6573 dev_info(&pf
->pdev
->dev
,
6574 "rebuild of vsi_idx %d failed: %d\n",
6576 goto end_reconstitute
;
6578 i40e_vsi_reset_stats(vsi
);
6582 /* create any VEBs attached to this VEB - RECURSION */
6583 for (veb_idx
= 0; veb_idx
< I40E_MAX_VEB
; veb_idx
++) {
6584 if (pf
->veb
[veb_idx
] && pf
->veb
[veb_idx
]->veb_idx
== veb
->idx
) {
6585 pf
->veb
[veb_idx
]->uplink_seid
= veb
->seid
;
6586 ret
= i40e_reconstitute_veb(pf
->veb
[veb_idx
]);
6597 * i40e_get_capabilities - get info about the HW
6598 * @pf: the PF struct
6600 static int i40e_get_capabilities(struct i40e_pf
*pf
)
6602 struct i40e_aqc_list_capabilities_element_resp
*cap_buf
;
6607 buf_len
= 40 * sizeof(struct i40e_aqc_list_capabilities_element_resp
);
6609 cap_buf
= kzalloc(buf_len
, GFP_KERNEL
);
6613 /* this loads the data into the hw struct for us */
6614 err
= i40e_aq_discover_capabilities(&pf
->hw
, cap_buf
, buf_len
,
6616 i40e_aqc_opc_list_func_capabilities
,
6618 /* data loaded, buffer no longer needed */
6621 if (pf
->hw
.aq
.asq_last_status
== I40E_AQ_RC_ENOMEM
) {
6622 /* retry with a larger buffer */
6623 buf_len
= data_size
;
6624 } else if (pf
->hw
.aq
.asq_last_status
!= I40E_AQ_RC_OK
) {
6625 dev_info(&pf
->pdev
->dev
,
6626 "capability discovery failed, err %s aq_err %s\n",
6627 i40e_stat_str(&pf
->hw
, err
),
6628 i40e_aq_str(&pf
->hw
,
6629 pf
->hw
.aq
.asq_last_status
));
6634 if (pf
->hw
.debug_mask
& I40E_DEBUG_USER
)
6635 dev_info(&pf
->pdev
->dev
,
6636 "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",
6637 pf
->hw
.pf_id
, pf
->hw
.func_caps
.num_vfs
,
6638 pf
->hw
.func_caps
.num_msix_vectors
,
6639 pf
->hw
.func_caps
.num_msix_vectors_vf
,
6640 pf
->hw
.func_caps
.fd_filters_guaranteed
,
6641 pf
->hw
.func_caps
.fd_filters_best_effort
,
6642 pf
->hw
.func_caps
.num_tx_qp
,
6643 pf
->hw
.func_caps
.num_vsis
);
6645 #define DEF_NUM_VSI (1 + (pf->hw.func_caps.fcoe ? 1 : 0) \
6646 + pf->hw.func_caps.num_vfs)
6647 if (pf
->hw
.revision_id
== 0 && (DEF_NUM_VSI
> pf
->hw
.func_caps
.num_vsis
)) {
6648 dev_info(&pf
->pdev
->dev
,
6649 "got num_vsis %d, setting num_vsis to %d\n",
6650 pf
->hw
.func_caps
.num_vsis
, DEF_NUM_VSI
);
6651 pf
->hw
.func_caps
.num_vsis
= DEF_NUM_VSI
;
6657 static int i40e_vsi_clear(struct i40e_vsi
*vsi
);
6660 * i40e_fdir_sb_setup - initialize the Flow Director resources for Sideband
6661 * @pf: board private structure
6663 static void i40e_fdir_sb_setup(struct i40e_pf
*pf
)
6665 struct i40e_vsi
*vsi
;
6668 /* quick workaround for an NVM issue that leaves a critical register
6671 if (!rd32(&pf
->hw
, I40E_GLQF_HKEY(0))) {
6672 static const u32 hkey
[] = {
6673 0xe640d33f, 0xcdfe98ab, 0x73fa7161, 0x0d7a7d36,
6674 0xeacb7d61, 0xaa4f05b6, 0x9c5c89ed, 0xfc425ddb,
6675 0xa4654832, 0xfc7461d4, 0x8f827619, 0xf5c63c21,
6678 for (i
= 0; i
<= I40E_GLQF_HKEY_MAX_INDEX
; i
++)
6679 wr32(&pf
->hw
, I40E_GLQF_HKEY(i
), hkey
[i
]);
6682 if (!(pf
->flags
& I40E_FLAG_FD_SB_ENABLED
))
6685 /* find existing VSI and see if it needs configuring */
6687 for (i
= 0; i
< pf
->num_alloc_vsi
; i
++) {
6688 if (pf
->vsi
[i
] && pf
->vsi
[i
]->type
== I40E_VSI_FDIR
) {
6694 /* create a new VSI if none exists */
6696 vsi
= i40e_vsi_setup(pf
, I40E_VSI_FDIR
,
6697 pf
->vsi
[pf
->lan_vsi
]->seid
, 0);
6699 dev_info(&pf
->pdev
->dev
, "Couldn't create FDir VSI\n");
6700 pf
->flags
&= ~I40E_FLAG_FD_SB_ENABLED
;
6705 i40e_vsi_setup_irqhandler(vsi
, i40e_fdir_clean_ring
);
6709 * i40e_fdir_teardown - release the Flow Director resources
6710 * @pf: board private structure
6712 static void i40e_fdir_teardown(struct i40e_pf
*pf
)
6716 i40e_fdir_filter_exit(pf
);
6717 for (i
= 0; i
< pf
->num_alloc_vsi
; i
++) {
6718 if (pf
->vsi
[i
] && pf
->vsi
[i
]->type
== I40E_VSI_FDIR
) {
6719 i40e_vsi_release(pf
->vsi
[i
]);
6726 * i40e_prep_for_reset - prep for the core to reset
6727 * @pf: board private structure
6729 * Close up the VFs and other things in prep for PF Reset.
6731 static void i40e_prep_for_reset(struct i40e_pf
*pf
)
6733 struct i40e_hw
*hw
= &pf
->hw
;
6734 i40e_status ret
= 0;
6737 clear_bit(__I40E_RESET_INTR_RECEIVED
, &pf
->state
);
6738 if (test_and_set_bit(__I40E_RESET_RECOVERY_PENDING
, &pf
->state
))
6740 if (i40e_check_asq_alive(&pf
->hw
))
6741 i40e_vc_notify_reset(pf
);
6743 dev_dbg(&pf
->pdev
->dev
, "Tearing down internal switch for reset\n");
6745 /* quiesce the VSIs and their queues that are not already DOWN */
6746 i40e_pf_quiesce_all_vsi(pf
);
6748 for (v
= 0; v
< pf
->num_alloc_vsi
; v
++) {
6750 pf
->vsi
[v
]->seid
= 0;
6753 i40e_shutdown_adminq(&pf
->hw
);
6755 /* call shutdown HMC */
6756 if (hw
->hmc
.hmc_obj
) {
6757 ret
= i40e_shutdown_lan_hmc(hw
);
6759 dev_warn(&pf
->pdev
->dev
,
6760 "shutdown_lan_hmc failed: %d\n", ret
);
6765 * i40e_send_version - update firmware with driver version
6768 static void i40e_send_version(struct i40e_pf
*pf
)
6770 struct i40e_driver_version dv
;
6772 dv
.major_version
= DRV_VERSION_MAJOR
;
6773 dv
.minor_version
= DRV_VERSION_MINOR
;
6774 dv
.build_version
= DRV_VERSION_BUILD
;
6775 dv
.subbuild_version
= 0;
6776 strlcpy(dv
.driver_string
, DRV_VERSION
, sizeof(dv
.driver_string
));
6777 i40e_aq_send_driver_version(&pf
->hw
, &dv
, NULL
);
6781 * i40e_reset_and_rebuild - reset and rebuild using a saved config
6782 * @pf: board private structure
6783 * @reinit: if the Main VSI needs to re-initialized.
6785 static void i40e_reset_and_rebuild(struct i40e_pf
*pf
, bool reinit
)
6787 struct i40e_hw
*hw
= &pf
->hw
;
6788 u8 set_fc_aq_fail
= 0;
6793 /* Now we wait for GRST to settle out.
6794 * We don't have to delete the VEBs or VSIs from the hw switch
6795 * because the reset will make them disappear.
6797 ret
= i40e_pf_reset(hw
);
6799 dev_info(&pf
->pdev
->dev
, "PF reset failed, %d\n", ret
);
6800 set_bit(__I40E_RESET_FAILED
, &pf
->state
);
6801 goto clear_recovery
;
6805 if (test_bit(__I40E_DOWN
, &pf
->state
))
6806 goto clear_recovery
;
6807 dev_dbg(&pf
->pdev
->dev
, "Rebuilding internal switch\n");
6809 /* rebuild the basics for the AdminQ, HMC, and initial HW switch */
6810 ret
= i40e_init_adminq(&pf
->hw
);
6812 dev_info(&pf
->pdev
->dev
, "Rebuild AdminQ failed, err %s aq_err %s\n",
6813 i40e_stat_str(&pf
->hw
, ret
),
6814 i40e_aq_str(&pf
->hw
, pf
->hw
.aq
.asq_last_status
));
6815 goto clear_recovery
;
6818 /* re-verify the eeprom if we just had an EMP reset */
6819 if (test_and_clear_bit(__I40E_EMP_RESET_INTR_RECEIVED
, &pf
->state
))
6820 i40e_verify_eeprom(pf
);
6822 i40e_clear_pxe_mode(hw
);
6823 ret
= i40e_get_capabilities(pf
);
6825 goto end_core_reset
;
6827 ret
= i40e_init_lan_hmc(hw
, hw
->func_caps
.num_tx_qp
,
6828 hw
->func_caps
.num_rx_qp
,
6829 pf
->fcoe_hmc_cntx_num
, pf
->fcoe_hmc_filt_num
);
6831 dev_info(&pf
->pdev
->dev
, "init_lan_hmc failed: %d\n", ret
);
6832 goto end_core_reset
;
6834 ret
= i40e_configure_lan_hmc(hw
, I40E_HMC_MODEL_DIRECT_ONLY
);
6836 dev_info(&pf
->pdev
->dev
, "configure_lan_hmc failed: %d\n", ret
);
6837 goto end_core_reset
;
6840 #ifdef CONFIG_I40E_DCB
6841 ret
= i40e_init_pf_dcb(pf
);
6843 dev_info(&pf
->pdev
->dev
, "DCB init failed %d, disabled\n", ret
);
6844 pf
->flags
&= ~I40E_FLAG_DCB_CAPABLE
;
6845 /* Continue without DCB enabled */
6847 #endif /* CONFIG_I40E_DCB */
6849 i40e_init_pf_fcoe(pf
);
6852 /* do basic switch setup */
6853 ret
= i40e_setup_pf_switch(pf
, reinit
);
6855 goto end_core_reset
;
6857 /* The driver only wants link up/down and module qualification
6858 * reports from firmware. Note the negative logic.
6860 ret
= i40e_aq_set_phy_int_mask(&pf
->hw
,
6861 ~(I40E_AQ_EVENT_LINK_UPDOWN
|
6862 I40E_AQ_EVENT_MEDIA_NA
|
6863 I40E_AQ_EVENT_MODULE_QUAL_FAIL
), NULL
);
6865 dev_info(&pf
->pdev
->dev
, "set phy mask fail, err %s aq_err %s\n",
6866 i40e_stat_str(&pf
->hw
, ret
),
6867 i40e_aq_str(&pf
->hw
, pf
->hw
.aq
.asq_last_status
));
6869 /* make sure our flow control settings are restored */
6870 ret
= i40e_set_fc(&pf
->hw
, &set_fc_aq_fail
, true);
6872 dev_dbg(&pf
->pdev
->dev
, "setting flow control: ret = %s last_status = %s\n",
6873 i40e_stat_str(&pf
->hw
, ret
),
6874 i40e_aq_str(&pf
->hw
, pf
->hw
.aq
.asq_last_status
));
6876 /* Rebuild the VSIs and VEBs that existed before reset.
6877 * They are still in our local switch element arrays, so only
6878 * need to rebuild the switch model in the HW.
6880 * If there were VEBs but the reconstitution failed, we'll try
6881 * try to recover minimal use by getting the basic PF VSI working.
6883 if (pf
->vsi
[pf
->lan_vsi
]->uplink_seid
!= pf
->mac_seid
) {
6884 dev_dbg(&pf
->pdev
->dev
, "attempting to rebuild switch\n");
6885 /* find the one VEB connected to the MAC, and find orphans */
6886 for (v
= 0; v
< I40E_MAX_VEB
; v
++) {
6890 if (pf
->veb
[v
]->uplink_seid
== pf
->mac_seid
||
6891 pf
->veb
[v
]->uplink_seid
== 0) {
6892 ret
= i40e_reconstitute_veb(pf
->veb
[v
]);
6897 /* If Main VEB failed, we're in deep doodoo,
6898 * so give up rebuilding the switch and set up
6899 * for minimal rebuild of PF VSI.
6900 * If orphan failed, we'll report the error
6901 * but try to keep going.
6903 if (pf
->veb
[v
]->uplink_seid
== pf
->mac_seid
) {
6904 dev_info(&pf
->pdev
->dev
,
6905 "rebuild of switch failed: %d, will try to set up simple PF connection\n",
6907 pf
->vsi
[pf
->lan_vsi
]->uplink_seid
6910 } else if (pf
->veb
[v
]->uplink_seid
== 0) {
6911 dev_info(&pf
->pdev
->dev
,
6912 "rebuild of orphan VEB failed: %d\n",
6919 if (pf
->vsi
[pf
->lan_vsi
]->uplink_seid
== pf
->mac_seid
) {
6920 dev_dbg(&pf
->pdev
->dev
, "attempting to rebuild PF VSI\n");
6921 /* no VEB, so rebuild only the Main VSI */
6922 ret
= i40e_add_vsi(pf
->vsi
[pf
->lan_vsi
]);
6924 dev_info(&pf
->pdev
->dev
,
6925 "rebuild of Main VSI failed: %d\n", ret
);
6926 goto end_core_reset
;
6930 /* Reconfigure hardware for allowing smaller MSS in the case
6931 * of TSO, so that we avoid the MDD being fired and causing
6932 * a reset in the case of small MSS+TSO.
6934 #define I40E_REG_MSS 0x000E64DC
6935 #define I40E_REG_MSS_MIN_MASK 0x3FF0000
6936 #define I40E_64BYTE_MSS 0x400000
6937 val
= rd32(hw
, I40E_REG_MSS
);
6938 if ((val
& I40E_REG_MSS_MIN_MASK
) > I40E_64BYTE_MSS
) {
6939 val
&= ~I40E_REG_MSS_MIN_MASK
;
6940 val
|= I40E_64BYTE_MSS
;
6941 wr32(hw
, I40E_REG_MSS
, val
);
6944 if (pf
->flags
& I40E_FLAG_RESTART_AUTONEG
) {
6946 ret
= i40e_aq_set_link_restart_an(&pf
->hw
, true, NULL
);
6948 dev_info(&pf
->pdev
->dev
, "link restart failed, err %s aq_err %s\n",
6949 i40e_stat_str(&pf
->hw
, ret
),
6950 i40e_aq_str(&pf
->hw
,
6951 pf
->hw
.aq
.asq_last_status
));
6953 /* reinit the misc interrupt */
6954 if (pf
->flags
& I40E_FLAG_MSIX_ENABLED
)
6955 ret
= i40e_setup_misc_vector(pf
);
6957 /* Add a filter to drop all Flow control frames from any VSI from being
6958 * transmitted. By doing so we stop a malicious VF from sending out
6959 * PAUSE or PFC frames and potentially controlling traffic for other
6961 * The FW can still send Flow control frames if enabled.
6963 i40e_add_filter_to_drop_tx_flow_control_frames(&pf
->hw
,
6966 /* restart the VSIs that were rebuilt and running before the reset */
6967 i40e_pf_unquiesce_all_vsi(pf
);
6969 if (pf
->num_alloc_vfs
) {
6970 for (v
= 0; v
< pf
->num_alloc_vfs
; v
++)
6971 i40e_reset_vf(&pf
->vf
[v
], true);
6974 /* tell the firmware that we're starting */
6975 i40e_send_version(pf
);
6978 clear_bit(__I40E_RESET_FAILED
, &pf
->state
);
6980 clear_bit(__I40E_RESET_RECOVERY_PENDING
, &pf
->state
);
6984 * i40e_handle_reset_warning - prep for the PF to reset, reset and rebuild
6985 * @pf: board private structure
6987 * Close up the VFs and other things in prep for a Core Reset,
6988 * then get ready to rebuild the world.
6990 static void i40e_handle_reset_warning(struct i40e_pf
*pf
)
6992 i40e_prep_for_reset(pf
);
6993 i40e_reset_and_rebuild(pf
, false);
6997 * i40e_handle_mdd_event
6998 * @pf: pointer to the PF structure
7000 * Called from the MDD irq handler to identify possibly malicious vfs
7002 static void i40e_handle_mdd_event(struct i40e_pf
*pf
)
7004 struct i40e_hw
*hw
= &pf
->hw
;
7005 bool mdd_detected
= false;
7006 bool pf_mdd_detected
= false;
7011 if (!test_bit(__I40E_MDD_EVENT_PENDING
, &pf
->state
))
7014 /* find what triggered the MDD event */
7015 reg
= rd32(hw
, I40E_GL_MDET_TX
);
7016 if (reg
& I40E_GL_MDET_TX_VALID_MASK
) {
7017 u8 pf_num
= (reg
& I40E_GL_MDET_TX_PF_NUM_MASK
) >>
7018 I40E_GL_MDET_TX_PF_NUM_SHIFT
;
7019 u16 vf_num
= (reg
& I40E_GL_MDET_TX_VF_NUM_MASK
) >>
7020 I40E_GL_MDET_TX_VF_NUM_SHIFT
;
7021 u8 event
= (reg
& I40E_GL_MDET_TX_EVENT_MASK
) >>
7022 I40E_GL_MDET_TX_EVENT_SHIFT
;
7023 u16 queue
= ((reg
& I40E_GL_MDET_TX_QUEUE_MASK
) >>
7024 I40E_GL_MDET_TX_QUEUE_SHIFT
) -
7025 pf
->hw
.func_caps
.base_queue
;
7026 if (netif_msg_tx_err(pf
))
7027 dev_info(&pf
->pdev
->dev
, "Malicious Driver Detection event 0x%02x on TX queue %d PF number 0x%02x VF number 0x%02x\n",
7028 event
, queue
, pf_num
, vf_num
);
7029 wr32(hw
, I40E_GL_MDET_TX
, 0xffffffff);
7030 mdd_detected
= true;
7032 reg
= rd32(hw
, I40E_GL_MDET_RX
);
7033 if (reg
& I40E_GL_MDET_RX_VALID_MASK
) {
7034 u8 func
= (reg
& I40E_GL_MDET_RX_FUNCTION_MASK
) >>
7035 I40E_GL_MDET_RX_FUNCTION_SHIFT
;
7036 u8 event
= (reg
& I40E_GL_MDET_RX_EVENT_MASK
) >>
7037 I40E_GL_MDET_RX_EVENT_SHIFT
;
7038 u16 queue
= ((reg
& I40E_GL_MDET_RX_QUEUE_MASK
) >>
7039 I40E_GL_MDET_RX_QUEUE_SHIFT
) -
7040 pf
->hw
.func_caps
.base_queue
;
7041 if (netif_msg_rx_err(pf
))
7042 dev_info(&pf
->pdev
->dev
, "Malicious Driver Detection event 0x%02x on RX queue %d of function 0x%02x\n",
7043 event
, queue
, func
);
7044 wr32(hw
, I40E_GL_MDET_RX
, 0xffffffff);
7045 mdd_detected
= true;
7049 reg
= rd32(hw
, I40E_PF_MDET_TX
);
7050 if (reg
& I40E_PF_MDET_TX_VALID_MASK
) {
7051 wr32(hw
, I40E_PF_MDET_TX
, 0xFFFF);
7052 dev_info(&pf
->pdev
->dev
, "TX driver issue detected, PF reset issued\n");
7053 pf_mdd_detected
= true;
7055 reg
= rd32(hw
, I40E_PF_MDET_RX
);
7056 if (reg
& I40E_PF_MDET_RX_VALID_MASK
) {
7057 wr32(hw
, I40E_PF_MDET_RX
, 0xFFFF);
7058 dev_info(&pf
->pdev
->dev
, "RX driver issue detected, PF reset issued\n");
7059 pf_mdd_detected
= true;
7061 /* Queue belongs to the PF, initiate a reset */
7062 if (pf_mdd_detected
) {
7063 set_bit(__I40E_PF_RESET_REQUESTED
, &pf
->state
);
7064 i40e_service_event_schedule(pf
);
7068 /* see if one of the VFs needs its hand slapped */
7069 for (i
= 0; i
< pf
->num_alloc_vfs
&& mdd_detected
; i
++) {
7071 reg
= rd32(hw
, I40E_VP_MDET_TX(i
));
7072 if (reg
& I40E_VP_MDET_TX_VALID_MASK
) {
7073 wr32(hw
, I40E_VP_MDET_TX(i
), 0xFFFF);
7074 vf
->num_mdd_events
++;
7075 dev_info(&pf
->pdev
->dev
, "TX driver issue detected on VF %d\n",
7079 reg
= rd32(hw
, I40E_VP_MDET_RX(i
));
7080 if (reg
& I40E_VP_MDET_RX_VALID_MASK
) {
7081 wr32(hw
, I40E_VP_MDET_RX(i
), 0xFFFF);
7082 vf
->num_mdd_events
++;
7083 dev_info(&pf
->pdev
->dev
, "RX driver issue detected on VF %d\n",
7087 if (vf
->num_mdd_events
> I40E_DEFAULT_NUM_MDD_EVENTS_ALLOWED
) {
7088 dev_info(&pf
->pdev
->dev
,
7089 "Too many MDD events on VF %d, disabled\n", i
);
7090 dev_info(&pf
->pdev
->dev
,
7091 "Use PF Control I/F to re-enable the VF\n");
7092 set_bit(I40E_VF_STAT_DISABLED
, &vf
->vf_states
);
7096 /* re-enable mdd interrupt cause */
7097 clear_bit(__I40E_MDD_EVENT_PENDING
, &pf
->state
);
7098 reg
= rd32(hw
, I40E_PFINT_ICR0_ENA
);
7099 reg
|= I40E_PFINT_ICR0_ENA_MAL_DETECT_MASK
;
7100 wr32(hw
, I40E_PFINT_ICR0_ENA
, reg
);
7105 * i40e_sync_udp_filters_subtask - Sync the VSI filter list with HW
7106 * @pf: board private structure
7108 static void i40e_sync_udp_filters_subtask(struct i40e_pf
*pf
)
7110 #if IS_ENABLED(CONFIG_VXLAN) || IS_ENABLED(CONFIG_GENEVE)
7111 struct i40e_hw
*hw
= &pf
->hw
;
7116 if (!(pf
->flags
& I40E_FLAG_UDP_FILTER_SYNC
))
7119 pf
->flags
&= ~I40E_FLAG_UDP_FILTER_SYNC
;
7121 for (i
= 0; i
< I40E_MAX_PF_UDP_OFFLOAD_PORTS
; i
++) {
7122 if (pf
->pending_udp_bitmap
& BIT_ULL(i
)) {
7123 pf
->pending_udp_bitmap
&= ~BIT_ULL(i
);
7124 port
= pf
->udp_ports
[i
].index
;
7126 ret
= i40e_aq_add_udp_tunnel(hw
, ntohs(port
),
7127 pf
->udp_ports
[i
].type
,
7130 ret
= i40e_aq_del_udp_tunnel(hw
, i
, NULL
);
7133 dev_dbg(&pf
->pdev
->dev
,
7134 "%s %s port %d, index %d failed, err %s aq_err %s\n",
7135 pf
->udp_ports
[i
].type
? "vxlan" : "geneve",
7136 port
? "add" : "delete",
7138 i40e_stat_str(&pf
->hw
, ret
),
7139 i40e_aq_str(&pf
->hw
,
7140 pf
->hw
.aq
.asq_last_status
));
7141 pf
->udp_ports
[i
].index
= 0;
7149 * i40e_service_task - Run the driver's async subtasks
7150 * @work: pointer to work_struct containing our data
7152 static void i40e_service_task(struct work_struct
*work
)
7154 struct i40e_pf
*pf
= container_of(work
,
7157 unsigned long start_time
= jiffies
;
7159 /* don't bother with service tasks if a reset is in progress */
7160 if (test_bit(__I40E_RESET_RECOVERY_PENDING
, &pf
->state
)) {
7161 i40e_service_event_complete(pf
);
7165 i40e_detect_recover_hung(pf
);
7166 i40e_sync_filters_subtask(pf
);
7167 i40e_reset_subtask(pf
);
7168 i40e_handle_mdd_event(pf
);
7169 i40e_vc_process_vflr_event(pf
);
7170 i40e_watchdog_subtask(pf
);
7171 i40e_fdir_reinit_subtask(pf
);
7172 i40e_client_subtask(pf
);
7173 i40e_sync_filters_subtask(pf
);
7174 i40e_sync_udp_filters_subtask(pf
);
7175 i40e_clean_adminq_subtask(pf
);
7177 i40e_service_event_complete(pf
);
7179 /* If the tasks have taken longer than one timer cycle or there
7180 * is more work to be done, reschedule the service task now
7181 * rather than wait for the timer to tick again.
7183 if (time_after(jiffies
, (start_time
+ pf
->service_timer_period
)) ||
7184 test_bit(__I40E_ADMINQ_EVENT_PENDING
, &pf
->state
) ||
7185 test_bit(__I40E_MDD_EVENT_PENDING
, &pf
->state
) ||
7186 test_bit(__I40E_VFLR_EVENT_PENDING
, &pf
->state
))
7187 i40e_service_event_schedule(pf
);
7191 * i40e_service_timer - timer callback
7192 * @data: pointer to PF struct
7194 static void i40e_service_timer(unsigned long data
)
7196 struct i40e_pf
*pf
= (struct i40e_pf
*)data
;
7198 mod_timer(&pf
->service_timer
,
7199 round_jiffies(jiffies
+ pf
->service_timer_period
));
7200 i40e_service_event_schedule(pf
);
7204 * i40e_set_num_rings_in_vsi - Determine number of rings in the VSI
7205 * @vsi: the VSI being configured
7207 static int i40e_set_num_rings_in_vsi(struct i40e_vsi
*vsi
)
7209 struct i40e_pf
*pf
= vsi
->back
;
7211 switch (vsi
->type
) {
7213 vsi
->alloc_queue_pairs
= pf
->num_lan_qps
;
7214 vsi
->num_desc
= ALIGN(I40E_DEFAULT_NUM_DESCRIPTORS
,
7215 I40E_REQ_DESCRIPTOR_MULTIPLE
);
7216 if (pf
->flags
& I40E_FLAG_MSIX_ENABLED
)
7217 vsi
->num_q_vectors
= pf
->num_lan_msix
;
7219 vsi
->num_q_vectors
= 1;
7224 vsi
->alloc_queue_pairs
= 1;
7225 vsi
->num_desc
= ALIGN(I40E_FDIR_RING_COUNT
,
7226 I40E_REQ_DESCRIPTOR_MULTIPLE
);
7227 vsi
->num_q_vectors
= 1;
7230 case I40E_VSI_VMDQ2
:
7231 vsi
->alloc_queue_pairs
= pf
->num_vmdq_qps
;
7232 vsi
->num_desc
= ALIGN(I40E_DEFAULT_NUM_DESCRIPTORS
,
7233 I40E_REQ_DESCRIPTOR_MULTIPLE
);
7234 vsi
->num_q_vectors
= pf
->num_vmdq_msix
;
7237 case I40E_VSI_SRIOV
:
7238 vsi
->alloc_queue_pairs
= pf
->num_vf_qps
;
7239 vsi
->num_desc
= ALIGN(I40E_DEFAULT_NUM_DESCRIPTORS
,
7240 I40E_REQ_DESCRIPTOR_MULTIPLE
);
7245 vsi
->alloc_queue_pairs
= pf
->num_fcoe_qps
;
7246 vsi
->num_desc
= ALIGN(I40E_DEFAULT_NUM_DESCRIPTORS
,
7247 I40E_REQ_DESCRIPTOR_MULTIPLE
);
7248 vsi
->num_q_vectors
= pf
->num_fcoe_msix
;
7251 #endif /* I40E_FCOE */
7261 * i40e_vsi_alloc_arrays - Allocate queue and vector pointer arrays for the vsi
7262 * @type: VSI pointer
7263 * @alloc_qvectors: a bool to specify if q_vectors need to be allocated.
7265 * On error: returns error code (negative)
7266 * On success: returns 0
7268 static int i40e_vsi_alloc_arrays(struct i40e_vsi
*vsi
, bool alloc_qvectors
)
7273 /* allocate memory for both Tx and Rx ring pointers */
7274 size
= sizeof(struct i40e_ring
*) * vsi
->alloc_queue_pairs
* 2;
7275 vsi
->tx_rings
= kzalloc(size
, GFP_KERNEL
);
7278 vsi
->rx_rings
= &vsi
->tx_rings
[vsi
->alloc_queue_pairs
];
7280 if (alloc_qvectors
) {
7281 /* allocate memory for q_vector pointers */
7282 size
= sizeof(struct i40e_q_vector
*) * vsi
->num_q_vectors
;
7283 vsi
->q_vectors
= kzalloc(size
, GFP_KERNEL
);
7284 if (!vsi
->q_vectors
) {
7292 kfree(vsi
->tx_rings
);
7297 * i40e_vsi_mem_alloc - Allocates the next available struct vsi in the PF
7298 * @pf: board private structure
7299 * @type: type of VSI
7301 * On error: returns error code (negative)
7302 * On success: returns vsi index in PF (positive)
7304 static int i40e_vsi_mem_alloc(struct i40e_pf
*pf
, enum i40e_vsi_type type
)
7307 struct i40e_vsi
*vsi
;
7311 /* Need to protect the allocation of the VSIs at the PF level */
7312 mutex_lock(&pf
->switch_mutex
);
7314 /* VSI list may be fragmented if VSI creation/destruction has
7315 * been happening. We can afford to do a quick scan to look
7316 * for any free VSIs in the list.
7318 * find next empty vsi slot, looping back around if necessary
7321 while (i
< pf
->num_alloc_vsi
&& pf
->vsi
[i
])
7323 if (i
>= pf
->num_alloc_vsi
) {
7325 while (i
< pf
->next_vsi
&& pf
->vsi
[i
])
7329 if (i
< pf
->num_alloc_vsi
&& !pf
->vsi
[i
]) {
7330 vsi_idx
= i
; /* Found one! */
7333 goto unlock_pf
; /* out of VSI slots! */
7337 vsi
= kzalloc(sizeof(*vsi
), GFP_KERNEL
);
7344 set_bit(__I40E_DOWN
, &vsi
->state
);
7347 vsi
->int_rate_limit
= 0;
7348 vsi
->rss_table_size
= (vsi
->type
== I40E_VSI_MAIN
) ?
7349 pf
->rss_table_size
: 64;
7350 vsi
->netdev_registered
= false;
7351 vsi
->work_limit
= I40E_DEFAULT_IRQ_WORK
;
7352 INIT_LIST_HEAD(&vsi
->mac_filter_list
);
7353 vsi
->irqs_ready
= false;
7355 ret
= i40e_set_num_rings_in_vsi(vsi
);
7359 ret
= i40e_vsi_alloc_arrays(vsi
, true);
7363 /* Setup default MSIX irq handler for VSI */
7364 i40e_vsi_setup_irqhandler(vsi
, i40e_msix_clean_rings
);
7366 /* Initialize VSI lock */
7367 spin_lock_init(&vsi
->mac_filter_list_lock
);
7368 pf
->vsi
[vsi_idx
] = vsi
;
7373 pf
->next_vsi
= i
- 1;
7376 mutex_unlock(&pf
->switch_mutex
);
7381 * i40e_vsi_free_arrays - Free queue and vector pointer arrays for the VSI
7382 * @type: VSI pointer
7383 * @free_qvectors: a bool to specify if q_vectors need to be freed.
7385 * On error: returns error code (negative)
7386 * On success: returns 0
7388 static void i40e_vsi_free_arrays(struct i40e_vsi
*vsi
, bool free_qvectors
)
7390 /* free the ring and vector containers */
7391 if (free_qvectors
) {
7392 kfree(vsi
->q_vectors
);
7393 vsi
->q_vectors
= NULL
;
7395 kfree(vsi
->tx_rings
);
7396 vsi
->tx_rings
= NULL
;
7397 vsi
->rx_rings
= NULL
;
7401 * i40e_clear_rss_config_user - clear the user configured RSS hash keys
7403 * @vsi: Pointer to VSI structure
7405 static void i40e_clear_rss_config_user(struct i40e_vsi
*vsi
)
7410 kfree(vsi
->rss_hkey_user
);
7411 vsi
->rss_hkey_user
= NULL
;
7413 kfree(vsi
->rss_lut_user
);
7414 vsi
->rss_lut_user
= NULL
;
7418 * i40e_vsi_clear - Deallocate the VSI provided
7419 * @vsi: the VSI being un-configured
7421 static int i40e_vsi_clear(struct i40e_vsi
*vsi
)
7432 mutex_lock(&pf
->switch_mutex
);
7433 if (!pf
->vsi
[vsi
->idx
]) {
7434 dev_err(&pf
->pdev
->dev
, "pf->vsi[%d] is NULL, just free vsi[%d](%p,type %d)\n",
7435 vsi
->idx
, vsi
->idx
, vsi
, vsi
->type
);
7439 if (pf
->vsi
[vsi
->idx
] != vsi
) {
7440 dev_err(&pf
->pdev
->dev
,
7441 "pf->vsi[%d](%p, type %d) != vsi[%d](%p,type %d): no free!\n",
7442 pf
->vsi
[vsi
->idx
]->idx
,
7444 pf
->vsi
[vsi
->idx
]->type
,
7445 vsi
->idx
, vsi
, vsi
->type
);
7449 /* updates the PF for this cleared vsi */
7450 i40e_put_lump(pf
->qp_pile
, vsi
->base_queue
, vsi
->idx
);
7451 i40e_put_lump(pf
->irq_pile
, vsi
->base_vector
, vsi
->idx
);
7453 i40e_vsi_free_arrays(vsi
, true);
7454 i40e_clear_rss_config_user(vsi
);
7456 pf
->vsi
[vsi
->idx
] = NULL
;
7457 if (vsi
->idx
< pf
->next_vsi
)
7458 pf
->next_vsi
= vsi
->idx
;
7461 mutex_unlock(&pf
->switch_mutex
);
7469 * i40e_vsi_clear_rings - Deallocates the Rx and Tx rings for the provided VSI
7470 * @vsi: the VSI being cleaned
7472 static void i40e_vsi_clear_rings(struct i40e_vsi
*vsi
)
7476 if (vsi
->tx_rings
&& vsi
->tx_rings
[0]) {
7477 for (i
= 0; i
< vsi
->alloc_queue_pairs
; i
++) {
7478 kfree_rcu(vsi
->tx_rings
[i
], rcu
);
7479 vsi
->tx_rings
[i
] = NULL
;
7480 vsi
->rx_rings
[i
] = NULL
;
7486 * i40e_alloc_rings - Allocates the Rx and Tx rings for the provided VSI
7487 * @vsi: the VSI being configured
7489 static int i40e_alloc_rings(struct i40e_vsi
*vsi
)
7491 struct i40e_ring
*tx_ring
, *rx_ring
;
7492 struct i40e_pf
*pf
= vsi
->back
;
7495 /* Set basic values in the rings to be used later during open() */
7496 for (i
= 0; i
< vsi
->alloc_queue_pairs
; i
++) {
7497 /* allocate space for both Tx and Rx in one shot */
7498 tx_ring
= kzalloc(sizeof(struct i40e_ring
) * 2, GFP_KERNEL
);
7502 tx_ring
->queue_index
= i
;
7503 tx_ring
->reg_idx
= vsi
->base_queue
+ i
;
7504 tx_ring
->ring_active
= false;
7506 tx_ring
->netdev
= vsi
->netdev
;
7507 tx_ring
->dev
= &pf
->pdev
->dev
;
7508 tx_ring
->count
= vsi
->num_desc
;
7510 tx_ring
->dcb_tc
= 0;
7511 if (vsi
->back
->flags
& I40E_FLAG_WB_ON_ITR_CAPABLE
)
7512 tx_ring
->flags
= I40E_TXR_FLAGS_WB_ON_ITR
;
7513 tx_ring
->tx_itr_setting
= pf
->tx_itr_default
;
7514 vsi
->tx_rings
[i
] = tx_ring
;
7516 rx_ring
= &tx_ring
[1];
7517 rx_ring
->queue_index
= i
;
7518 rx_ring
->reg_idx
= vsi
->base_queue
+ i
;
7519 rx_ring
->ring_active
= false;
7521 rx_ring
->netdev
= vsi
->netdev
;
7522 rx_ring
->dev
= &pf
->pdev
->dev
;
7523 rx_ring
->count
= vsi
->num_desc
;
7525 rx_ring
->dcb_tc
= 0;
7526 if (pf
->flags
& I40E_FLAG_16BYTE_RX_DESC_ENABLED
)
7527 set_ring_16byte_desc_enabled(rx_ring
);
7529 clear_ring_16byte_desc_enabled(rx_ring
);
7530 rx_ring
->rx_itr_setting
= pf
->rx_itr_default
;
7531 vsi
->rx_rings
[i
] = rx_ring
;
7537 i40e_vsi_clear_rings(vsi
);
7542 * i40e_reserve_msix_vectors - Reserve MSI-X vectors in the kernel
7543 * @pf: board private structure
7544 * @vectors: the number of MSI-X vectors to request
7546 * Returns the number of vectors reserved, or error
7548 static int i40e_reserve_msix_vectors(struct i40e_pf
*pf
, int vectors
)
7550 vectors
= pci_enable_msix_range(pf
->pdev
, pf
->msix_entries
,
7551 I40E_MIN_MSIX
, vectors
);
7553 dev_info(&pf
->pdev
->dev
,
7554 "MSI-X vector reservation failed: %d\n", vectors
);
7562 * i40e_init_msix - Setup the MSIX capability
7563 * @pf: board private structure
7565 * Work with the OS to set up the MSIX vectors needed.
7567 * Returns the number of vectors reserved or negative on failure
7569 static int i40e_init_msix(struct i40e_pf
*pf
)
7571 struct i40e_hw
*hw
= &pf
->hw
;
7575 int iwarp_requested
= 0;
7577 if (!(pf
->flags
& I40E_FLAG_MSIX_ENABLED
))
7580 /* The number of vectors we'll request will be comprised of:
7581 * - Add 1 for "other" cause for Admin Queue events, etc.
7582 * - The number of LAN queue pairs
7583 * - Queues being used for RSS.
7584 * We don't need as many as max_rss_size vectors.
7585 * use rss_size instead in the calculation since that
7586 * is governed by number of cpus in the system.
7587 * - assumes symmetric Tx/Rx pairing
7588 * - The number of VMDq pairs
7589 * - The CPU count within the NUMA node if iWARP is enabled
7591 * - The number of FCOE qps.
7593 * Once we count this up, try the request.
7595 * If we can't get what we want, we'll simplify to nearly nothing
7596 * and try again. If that still fails, we punt.
7598 vectors_left
= hw
->func_caps
.num_msix_vectors
;
7601 /* reserve one vector for miscellaneous handler */
7607 /* reserve vectors for the main PF traffic queues */
7608 pf
->num_lan_msix
= min_t(int, num_online_cpus(), vectors_left
);
7609 vectors_left
-= pf
->num_lan_msix
;
7610 v_budget
+= pf
->num_lan_msix
;
7612 /* reserve one vector for sideband flow director */
7613 if (pf
->flags
& I40E_FLAG_FD_SB_ENABLED
) {
7618 pf
->flags
&= ~I40E_FLAG_FD_SB_ENABLED
;
7623 /* can we reserve enough for FCoE? */
7624 if (pf
->flags
& I40E_FLAG_FCOE_ENABLED
) {
7626 pf
->num_fcoe_msix
= 0;
7627 else if (vectors_left
>= pf
->num_fcoe_qps
)
7628 pf
->num_fcoe_msix
= pf
->num_fcoe_qps
;
7630 pf
->num_fcoe_msix
= 1;
7631 v_budget
+= pf
->num_fcoe_msix
;
7632 vectors_left
-= pf
->num_fcoe_msix
;
7636 /* can we reserve enough for iWARP? */
7637 if (pf
->flags
& I40E_FLAG_IWARP_ENABLED
) {
7639 pf
->num_iwarp_msix
= 0;
7640 else if (vectors_left
< pf
->num_iwarp_msix
)
7641 pf
->num_iwarp_msix
= 1;
7642 v_budget
+= pf
->num_iwarp_msix
;
7643 vectors_left
-= pf
->num_iwarp_msix
;
7646 /* any vectors left over go for VMDq support */
7647 if (pf
->flags
& I40E_FLAG_VMDQ_ENABLED
) {
7648 int vmdq_vecs_wanted
= pf
->num_vmdq_vsis
* pf
->num_vmdq_qps
;
7649 int vmdq_vecs
= min_t(int, vectors_left
, vmdq_vecs_wanted
);
7651 /* if we're short on vectors for what's desired, we limit
7652 * the queues per vmdq. If this is still more than are
7653 * available, the user will need to change the number of
7654 * queues/vectors used by the PF later with the ethtool
7657 if (vmdq_vecs
< vmdq_vecs_wanted
)
7658 pf
->num_vmdq_qps
= 1;
7659 pf
->num_vmdq_msix
= pf
->num_vmdq_qps
;
7661 v_budget
+= vmdq_vecs
;
7662 vectors_left
-= vmdq_vecs
;
7665 pf
->msix_entries
= kcalloc(v_budget
, sizeof(struct msix_entry
),
7667 if (!pf
->msix_entries
)
7670 for (i
= 0; i
< v_budget
; i
++)
7671 pf
->msix_entries
[i
].entry
= i
;
7672 v_actual
= i40e_reserve_msix_vectors(pf
, v_budget
);
7674 if (v_actual
!= v_budget
) {
7675 /* If we have limited resources, we will start with no vectors
7676 * for the special features and then allocate vectors to some
7677 * of these features based on the policy and at the end disable
7678 * the features that did not get any vectors.
7680 iwarp_requested
= pf
->num_iwarp_msix
;
7681 pf
->num_iwarp_msix
= 0;
7683 pf
->num_fcoe_qps
= 0;
7684 pf
->num_fcoe_msix
= 0;
7686 pf
->num_vmdq_msix
= 0;
7689 if (v_actual
< I40E_MIN_MSIX
) {
7690 pf
->flags
&= ~I40E_FLAG_MSIX_ENABLED
;
7691 kfree(pf
->msix_entries
);
7692 pf
->msix_entries
= NULL
;
7695 } else if (v_actual
== I40E_MIN_MSIX
) {
7696 /* Adjust for minimal MSIX use */
7697 pf
->num_vmdq_vsis
= 0;
7698 pf
->num_vmdq_qps
= 0;
7699 pf
->num_lan_qps
= 1;
7700 pf
->num_lan_msix
= 1;
7702 } else if (v_actual
!= v_budget
) {
7705 /* reserve the misc vector */
7708 /* Scale vector usage down */
7709 pf
->num_vmdq_msix
= 1; /* force VMDqs to only one vector */
7710 pf
->num_vmdq_vsis
= 1;
7711 pf
->num_vmdq_qps
= 1;
7712 pf
->flags
&= ~I40E_FLAG_FD_SB_ENABLED
;
7714 /* partition out the remaining vectors */
7717 pf
->num_lan_msix
= 1;
7720 if (pf
->flags
& I40E_FLAG_IWARP_ENABLED
) {
7721 pf
->num_lan_msix
= 1;
7722 pf
->num_iwarp_msix
= 1;
7724 pf
->num_lan_msix
= 2;
7727 /* give one vector to FCoE */
7728 if (pf
->flags
& I40E_FLAG_FCOE_ENABLED
) {
7729 pf
->num_lan_msix
= 1;
7730 pf
->num_fcoe_msix
= 1;
7735 if (pf
->flags
& I40E_FLAG_IWARP_ENABLED
) {
7736 pf
->num_iwarp_msix
= min_t(int, (vec
/ 3),
7738 pf
->num_vmdq_vsis
= min_t(int, (vec
/ 3),
7739 I40E_DEFAULT_NUM_VMDQ_VSI
);
7741 pf
->num_vmdq_vsis
= min_t(int, (vec
/ 2),
7742 I40E_DEFAULT_NUM_VMDQ_VSI
);
7744 pf
->num_lan_msix
= min_t(int,
7745 (vec
- (pf
->num_iwarp_msix
+ pf
->num_vmdq_vsis
)),
7748 /* give one vector to FCoE */
7749 if (pf
->flags
& I40E_FLAG_FCOE_ENABLED
) {
7750 pf
->num_fcoe_msix
= 1;
7758 if ((pf
->flags
& I40E_FLAG_VMDQ_ENABLED
) &&
7759 (pf
->num_vmdq_msix
== 0)) {
7760 dev_info(&pf
->pdev
->dev
, "VMDq disabled, not enough MSI-X vectors\n");
7761 pf
->flags
&= ~I40E_FLAG_VMDQ_ENABLED
;
7764 if ((pf
->flags
& I40E_FLAG_IWARP_ENABLED
) &&
7765 (pf
->num_iwarp_msix
== 0)) {
7766 dev_info(&pf
->pdev
->dev
, "IWARP disabled, not enough MSI-X vectors\n");
7767 pf
->flags
&= ~I40E_FLAG_IWARP_ENABLED
;
7771 if ((pf
->flags
& I40E_FLAG_FCOE_ENABLED
) && (pf
->num_fcoe_msix
== 0)) {
7772 dev_info(&pf
->pdev
->dev
, "FCOE disabled, not enough MSI-X vectors\n");
7773 pf
->flags
&= ~I40E_FLAG_FCOE_ENABLED
;
7780 * i40e_vsi_alloc_q_vector - Allocate memory for a single interrupt vector
7781 * @vsi: the VSI being configured
7782 * @v_idx: index of the vector in the vsi struct
7784 * We allocate one q_vector. If allocation fails we return -ENOMEM.
7786 static int i40e_vsi_alloc_q_vector(struct i40e_vsi
*vsi
, int v_idx
)
7788 struct i40e_q_vector
*q_vector
;
7790 /* allocate q_vector */
7791 q_vector
= kzalloc(sizeof(struct i40e_q_vector
), GFP_KERNEL
);
7795 q_vector
->vsi
= vsi
;
7796 q_vector
->v_idx
= v_idx
;
7797 cpumask_set_cpu(v_idx
, &q_vector
->affinity_mask
);
7799 netif_napi_add(vsi
->netdev
, &q_vector
->napi
,
7800 i40e_napi_poll
, NAPI_POLL_WEIGHT
);
7802 q_vector
->rx
.latency_range
= I40E_LOW_LATENCY
;
7803 q_vector
->tx
.latency_range
= I40E_LOW_LATENCY
;
7805 /* tie q_vector and vsi together */
7806 vsi
->q_vectors
[v_idx
] = q_vector
;
7812 * i40e_vsi_alloc_q_vectors - Allocate memory for interrupt vectors
7813 * @vsi: the VSI being configured
7815 * We allocate one q_vector per queue interrupt. If allocation fails we
7818 static int i40e_vsi_alloc_q_vectors(struct i40e_vsi
*vsi
)
7820 struct i40e_pf
*pf
= vsi
->back
;
7821 int v_idx
, num_q_vectors
;
7824 /* if not MSIX, give the one vector only to the LAN VSI */
7825 if (pf
->flags
& I40E_FLAG_MSIX_ENABLED
)
7826 num_q_vectors
= vsi
->num_q_vectors
;
7827 else if (vsi
== pf
->vsi
[pf
->lan_vsi
])
7832 for (v_idx
= 0; v_idx
< num_q_vectors
; v_idx
++) {
7833 err
= i40e_vsi_alloc_q_vector(vsi
, v_idx
);
7842 i40e_free_q_vector(vsi
, v_idx
);
7848 * i40e_init_interrupt_scheme - Determine proper interrupt scheme
7849 * @pf: board private structure to initialize
7851 static int i40e_init_interrupt_scheme(struct i40e_pf
*pf
)
7856 if (pf
->flags
& I40E_FLAG_MSIX_ENABLED
) {
7857 vectors
= i40e_init_msix(pf
);
7859 pf
->flags
&= ~(I40E_FLAG_MSIX_ENABLED
|
7860 I40E_FLAG_IWARP_ENABLED
|
7862 I40E_FLAG_FCOE_ENABLED
|
7864 I40E_FLAG_RSS_ENABLED
|
7865 I40E_FLAG_DCB_CAPABLE
|
7866 I40E_FLAG_SRIOV_ENABLED
|
7867 I40E_FLAG_FD_SB_ENABLED
|
7868 I40E_FLAG_FD_ATR_ENABLED
|
7869 I40E_FLAG_VMDQ_ENABLED
);
7871 /* rework the queue expectations without MSIX */
7872 i40e_determine_queue_usage(pf
);
7876 if (!(pf
->flags
& I40E_FLAG_MSIX_ENABLED
) &&
7877 (pf
->flags
& I40E_FLAG_MSI_ENABLED
)) {
7878 dev_info(&pf
->pdev
->dev
, "MSI-X not available, trying MSI\n");
7879 vectors
= pci_enable_msi(pf
->pdev
);
7881 dev_info(&pf
->pdev
->dev
, "MSI init failed - %d\n",
7883 pf
->flags
&= ~I40E_FLAG_MSI_ENABLED
;
7885 vectors
= 1; /* one MSI or Legacy vector */
7888 if (!(pf
->flags
& (I40E_FLAG_MSIX_ENABLED
| I40E_FLAG_MSI_ENABLED
)))
7889 dev_info(&pf
->pdev
->dev
, "MSI-X and MSI not available, falling back to Legacy IRQ\n");
7891 /* set up vector assignment tracking */
7892 size
= sizeof(struct i40e_lump_tracking
) + (sizeof(u16
) * vectors
);
7893 pf
->irq_pile
= kzalloc(size
, GFP_KERNEL
);
7894 if (!pf
->irq_pile
) {
7895 dev_err(&pf
->pdev
->dev
, "error allocating irq_pile memory\n");
7898 pf
->irq_pile
->num_entries
= vectors
;
7899 pf
->irq_pile
->search_hint
= 0;
7901 /* track first vector for misc interrupts, ignore return */
7902 (void)i40e_get_lump(pf
, pf
->irq_pile
, 1, I40E_PILE_VALID_BIT
- 1);
7908 * i40e_setup_misc_vector - Setup the misc vector to handle non queue events
7909 * @pf: board private structure
7911 * This sets up the handler for MSIX 0, which is used to manage the
7912 * non-queue interrupts, e.g. AdminQ and errors. This is not used
7913 * when in MSI or Legacy interrupt mode.
7915 static int i40e_setup_misc_vector(struct i40e_pf
*pf
)
7917 struct i40e_hw
*hw
= &pf
->hw
;
7920 /* Only request the irq if this is the first time through, and
7921 * not when we're rebuilding after a Reset
7923 if (!test_bit(__I40E_RESET_RECOVERY_PENDING
, &pf
->state
)) {
7924 err
= request_irq(pf
->msix_entries
[0].vector
,
7925 i40e_intr
, 0, pf
->int_name
, pf
);
7927 dev_info(&pf
->pdev
->dev
,
7928 "request_irq for %s failed: %d\n",
7934 i40e_enable_misc_int_causes(pf
);
7936 /* associate no queues to the misc vector */
7937 wr32(hw
, I40E_PFINT_LNKLST0
, I40E_QUEUE_END_OF_LIST
);
7938 wr32(hw
, I40E_PFINT_ITR0(I40E_RX_ITR
), I40E_ITR_8K
);
7942 i40e_irq_dynamic_enable_icr0(pf
, true);
7948 * i40e_config_rss_aq - Prepare for RSS using AQ commands
7949 * @vsi: vsi structure
7950 * @seed: RSS hash seed
7952 static int i40e_config_rss_aq(struct i40e_vsi
*vsi
, const u8
*seed
,
7953 u8
*lut
, u16 lut_size
)
7955 struct i40e_aqc_get_set_rss_key_data rss_key
;
7956 struct i40e_pf
*pf
= vsi
->back
;
7957 struct i40e_hw
*hw
= &pf
->hw
;
7958 bool pf_lut
= false;
7962 memset(&rss_key
, 0, sizeof(rss_key
));
7963 memcpy(&rss_key
, seed
, sizeof(rss_key
));
7965 rss_lut
= kzalloc(pf
->rss_table_size
, GFP_KERNEL
);
7969 /* Populate the LUT with max no. of queues in round robin fashion */
7970 for (i
= 0; i
< vsi
->rss_table_size
; i
++)
7971 rss_lut
[i
] = i
% vsi
->rss_size
;
7973 ret
= i40e_aq_set_rss_key(hw
, vsi
->id
, &rss_key
);
7975 dev_info(&pf
->pdev
->dev
,
7976 "Cannot set RSS key, err %s aq_err %s\n",
7977 i40e_stat_str(&pf
->hw
, ret
),
7978 i40e_aq_str(&pf
->hw
, pf
->hw
.aq
.asq_last_status
));
7979 goto config_rss_aq_out
;
7982 if (vsi
->type
== I40E_VSI_MAIN
)
7985 ret
= i40e_aq_set_rss_lut(hw
, vsi
->id
, pf_lut
, rss_lut
,
7986 vsi
->rss_table_size
);
7988 dev_info(&pf
->pdev
->dev
,
7989 "Cannot set RSS lut, err %s aq_err %s\n",
7990 i40e_stat_str(&pf
->hw
, ret
),
7991 i40e_aq_str(&pf
->hw
, pf
->hw
.aq
.asq_last_status
));
7999 * i40e_vsi_config_rss - Prepare for VSI(VMDq) RSS if used
8000 * @vsi: VSI structure
8002 static int i40e_vsi_config_rss(struct i40e_vsi
*vsi
)
8004 u8 seed
[I40E_HKEY_ARRAY_SIZE
];
8005 struct i40e_pf
*pf
= vsi
->back
;
8009 if (!(pf
->flags
& I40E_FLAG_RSS_AQ_CAPABLE
))
8012 lut
= kzalloc(vsi
->rss_table_size
, GFP_KERNEL
);
8016 i40e_fill_rss_lut(pf
, lut
, vsi
->rss_table_size
, vsi
->rss_size
);
8017 netdev_rss_key_fill((void *)seed
, I40E_HKEY_ARRAY_SIZE
);
8018 vsi
->rss_size
= min_t(int, pf
->alloc_rss_size
, vsi
->num_queue_pairs
);
8019 ret
= i40e_config_rss_aq(vsi
, seed
, lut
, vsi
->rss_table_size
);
8026 * i40e_get_rss_aq - Get RSS keys and lut by using AQ commands
8027 * @vsi: Pointer to vsi structure
8028 * @seed: Buffter to store the hash keys
8029 * @lut: Buffer to store the lookup table entries
8030 * @lut_size: Size of buffer to store the lookup table entries
8032 * Return 0 on success, negative on failure
8034 static int i40e_get_rss_aq(struct i40e_vsi
*vsi
, const u8
*seed
,
8035 u8
*lut
, u16 lut_size
)
8037 struct i40e_pf
*pf
= vsi
->back
;
8038 struct i40e_hw
*hw
= &pf
->hw
;
8042 ret
= i40e_aq_get_rss_key(hw
, vsi
->id
,
8043 (struct i40e_aqc_get_set_rss_key_data
*)seed
);
8045 dev_info(&pf
->pdev
->dev
,
8046 "Cannot get RSS key, err %s aq_err %s\n",
8047 i40e_stat_str(&pf
->hw
, ret
),
8048 i40e_aq_str(&pf
->hw
,
8049 pf
->hw
.aq
.asq_last_status
));
8055 bool pf_lut
= vsi
->type
== I40E_VSI_MAIN
? true : false;
8057 ret
= i40e_aq_get_rss_lut(hw
, vsi
->id
, pf_lut
, lut
, lut_size
);
8059 dev_info(&pf
->pdev
->dev
,
8060 "Cannot get RSS lut, err %s aq_err %s\n",
8061 i40e_stat_str(&pf
->hw
, ret
),
8062 i40e_aq_str(&pf
->hw
,
8063 pf
->hw
.aq
.asq_last_status
));
8072 * i40e_config_rss_reg - Configure RSS keys and lut by writing registers
8073 * @vsi: Pointer to vsi structure
8074 * @seed: RSS hash seed
8075 * @lut: Lookup table
8076 * @lut_size: Lookup table size
8078 * Returns 0 on success, negative on failure
8080 static int i40e_config_rss_reg(struct i40e_vsi
*vsi
, const u8
*seed
,
8081 const u8
*lut
, u16 lut_size
)
8083 struct i40e_pf
*pf
= vsi
->back
;
8084 struct i40e_hw
*hw
= &pf
->hw
;
8087 /* Fill out hash function seed */
8089 u32
*seed_dw
= (u32
*)seed
;
8091 for (i
= 0; i
<= I40E_PFQF_HKEY_MAX_INDEX
; i
++)
8092 i40e_write_rx_ctl(hw
, I40E_PFQF_HKEY(i
), seed_dw
[i
]);
8096 u32
*lut_dw
= (u32
*)lut
;
8098 if (lut_size
!= I40E_HLUT_ARRAY_SIZE
)
8101 for (i
= 0; i
<= I40E_PFQF_HLUT_MAX_INDEX
; i
++)
8102 wr32(hw
, I40E_PFQF_HLUT(i
), lut_dw
[i
]);
8110 * i40e_get_rss_reg - Get the RSS keys and lut by reading registers
8111 * @vsi: Pointer to VSI structure
8112 * @seed: Buffer to store the keys
8113 * @lut: Buffer to store the lookup table entries
8114 * @lut_size: Size of buffer to store the lookup table entries
8116 * Returns 0 on success, negative on failure
8118 static int i40e_get_rss_reg(struct i40e_vsi
*vsi
, u8
*seed
,
8119 u8
*lut
, u16 lut_size
)
8121 struct i40e_pf
*pf
= vsi
->back
;
8122 struct i40e_hw
*hw
= &pf
->hw
;
8126 u32
*seed_dw
= (u32
*)seed
;
8128 for (i
= 0; i
<= I40E_PFQF_HKEY_MAX_INDEX
; i
++)
8129 seed_dw
[i
] = i40e_read_rx_ctl(hw
, I40E_PFQF_HKEY(i
));
8132 u32
*lut_dw
= (u32
*)lut
;
8134 if (lut_size
!= I40E_HLUT_ARRAY_SIZE
)
8136 for (i
= 0; i
<= I40E_PFQF_HLUT_MAX_INDEX
; i
++)
8137 lut_dw
[i
] = rd32(hw
, I40E_PFQF_HLUT(i
));
8144 * i40e_config_rss - Configure RSS keys and lut
8145 * @vsi: Pointer to VSI structure
8146 * @seed: RSS hash seed
8147 * @lut: Lookup table
8148 * @lut_size: Lookup table size
8150 * Returns 0 on success, negative on failure
8152 int i40e_config_rss(struct i40e_vsi
*vsi
, u8
*seed
, u8
*lut
, u16 lut_size
)
8154 struct i40e_pf
*pf
= vsi
->back
;
8156 if (pf
->flags
& I40E_FLAG_RSS_AQ_CAPABLE
)
8157 return i40e_config_rss_aq(vsi
, seed
, lut
, lut_size
);
8159 return i40e_config_rss_reg(vsi
, seed
, lut
, lut_size
);
8163 * i40e_get_rss - Get RSS keys and lut
8164 * @vsi: Pointer to VSI structure
8165 * @seed: Buffer to store the keys
8166 * @lut: Buffer to store the lookup table entries
8167 * lut_size: Size of buffer to store the lookup table entries
8169 * Returns 0 on success, negative on failure
8171 int i40e_get_rss(struct i40e_vsi
*vsi
, u8
*seed
, u8
*lut
, u16 lut_size
)
8173 struct i40e_pf
*pf
= vsi
->back
;
8175 if (pf
->flags
& I40E_FLAG_RSS_AQ_CAPABLE
)
8176 return i40e_get_rss_aq(vsi
, seed
, lut
, lut_size
);
8178 return i40e_get_rss_reg(vsi
, seed
, lut
, lut_size
);
8182 * i40e_fill_rss_lut - Fill the RSS lookup table with default values
8183 * @pf: Pointer to board private structure
8184 * @lut: Lookup table
8185 * @rss_table_size: Lookup table size
8186 * @rss_size: Range of queue number for hashing
8188 static void i40e_fill_rss_lut(struct i40e_pf
*pf
, u8
*lut
,
8189 u16 rss_table_size
, u16 rss_size
)
8193 for (i
= 0; i
< rss_table_size
; i
++)
8194 lut
[i
] = i
% rss_size
;
8198 * i40e_pf_config_rss - Prepare for RSS if used
8199 * @pf: board private structure
8201 static int i40e_pf_config_rss(struct i40e_pf
*pf
)
8203 struct i40e_vsi
*vsi
= pf
->vsi
[pf
->lan_vsi
];
8204 u8 seed
[I40E_HKEY_ARRAY_SIZE
];
8206 struct i40e_hw
*hw
= &pf
->hw
;
8211 /* By default we enable TCP/UDP with IPv4/IPv6 ptypes */
8212 hena
= (u64
)i40e_read_rx_ctl(hw
, I40E_PFQF_HENA(0)) |
8213 ((u64
)i40e_read_rx_ctl(hw
, I40E_PFQF_HENA(1)) << 32);
8214 hena
|= i40e_pf_get_default_rss_hena(pf
);
8216 i40e_write_rx_ctl(hw
, I40E_PFQF_HENA(0), (u32
)hena
);
8217 i40e_write_rx_ctl(hw
, I40E_PFQF_HENA(1), (u32
)(hena
>> 32));
8219 /* Determine the RSS table size based on the hardware capabilities */
8220 reg_val
= i40e_read_rx_ctl(hw
, I40E_PFQF_CTL_0
);
8221 reg_val
= (pf
->rss_table_size
== 512) ?
8222 (reg_val
| I40E_PFQF_CTL_0_HASHLUTSIZE_512
) :
8223 (reg_val
& ~I40E_PFQF_CTL_0_HASHLUTSIZE_512
);
8224 i40e_write_rx_ctl(hw
, I40E_PFQF_CTL_0
, reg_val
);
8226 /* Determine the RSS size of the VSI */
8228 vsi
->rss_size
= min_t(int, pf
->alloc_rss_size
,
8229 vsi
->num_queue_pairs
);
8231 lut
= kzalloc(vsi
->rss_table_size
, GFP_KERNEL
);
8235 /* Use user configured lut if there is one, otherwise use default */
8236 if (vsi
->rss_lut_user
)
8237 memcpy(lut
, vsi
->rss_lut_user
, vsi
->rss_table_size
);
8239 i40e_fill_rss_lut(pf
, lut
, vsi
->rss_table_size
, vsi
->rss_size
);
8241 /* Use user configured hash key if there is one, otherwise
8244 if (vsi
->rss_hkey_user
)
8245 memcpy(seed
, vsi
->rss_hkey_user
, I40E_HKEY_ARRAY_SIZE
);
8247 netdev_rss_key_fill((void *)seed
, I40E_HKEY_ARRAY_SIZE
);
8248 ret
= i40e_config_rss(vsi
, seed
, lut
, vsi
->rss_table_size
);
8255 * i40e_reconfig_rss_queues - change number of queues for rss and rebuild
8256 * @pf: board private structure
8257 * @queue_count: the requested queue count for rss.
8259 * returns 0 if rss is not enabled, if enabled returns the final rss queue
8260 * count which may be different from the requested queue count.
8262 int i40e_reconfig_rss_queues(struct i40e_pf
*pf
, int queue_count
)
8264 struct i40e_vsi
*vsi
= pf
->vsi
[pf
->lan_vsi
];
8267 if (!(pf
->flags
& I40E_FLAG_RSS_ENABLED
))
8270 new_rss_size
= min_t(int, queue_count
, pf
->rss_size_max
);
8272 if (queue_count
!= vsi
->num_queue_pairs
) {
8273 vsi
->req_queue_pairs
= queue_count
;
8274 i40e_prep_for_reset(pf
);
8276 pf
->alloc_rss_size
= new_rss_size
;
8278 i40e_reset_and_rebuild(pf
, true);
8280 /* Discard the user configured hash keys and lut, if less
8281 * queues are enabled.
8283 if (queue_count
< vsi
->rss_size
) {
8284 i40e_clear_rss_config_user(vsi
);
8285 dev_dbg(&pf
->pdev
->dev
,
8286 "discard user configured hash keys and lut\n");
8289 /* Reset vsi->rss_size, as number of enabled queues changed */
8290 vsi
->rss_size
= min_t(int, pf
->alloc_rss_size
,
8291 vsi
->num_queue_pairs
);
8293 i40e_pf_config_rss(pf
);
8295 dev_info(&pf
->pdev
->dev
, "RSS count/HW max RSS count: %d/%d\n",
8296 pf
->alloc_rss_size
, pf
->rss_size_max
);
8297 return pf
->alloc_rss_size
;
8301 * i40e_get_npar_bw_setting - Retrieve BW settings for this PF partition
8302 * @pf: board private structure
8304 i40e_status
i40e_get_npar_bw_setting(struct i40e_pf
*pf
)
8307 bool min_valid
, max_valid
;
8310 status
= i40e_read_bw_from_alt_ram(&pf
->hw
, &max_bw
, &min_bw
,
8311 &min_valid
, &max_valid
);
8315 pf
->npar_min_bw
= min_bw
;
8317 pf
->npar_max_bw
= max_bw
;
8324 * i40e_set_npar_bw_setting - Set BW settings for this PF partition
8325 * @pf: board private structure
8327 i40e_status
i40e_set_npar_bw_setting(struct i40e_pf
*pf
)
8329 struct i40e_aqc_configure_partition_bw_data bw_data
;
8332 /* Set the valid bit for this PF */
8333 bw_data
.pf_valid_bits
= cpu_to_le16(BIT(pf
->hw
.pf_id
));
8334 bw_data
.max_bw
[pf
->hw
.pf_id
] = pf
->npar_max_bw
& I40E_ALT_BW_VALUE_MASK
;
8335 bw_data
.min_bw
[pf
->hw
.pf_id
] = pf
->npar_min_bw
& I40E_ALT_BW_VALUE_MASK
;
8337 /* Set the new bandwidths */
8338 status
= i40e_aq_configure_partition_bw(&pf
->hw
, &bw_data
, NULL
);
8344 * i40e_commit_npar_bw_setting - Commit BW settings for this PF partition
8345 * @pf: board private structure
8347 i40e_status
i40e_commit_npar_bw_setting(struct i40e_pf
*pf
)
8349 /* Commit temporary BW setting to permanent NVM image */
8350 enum i40e_admin_queue_err last_aq_status
;
8354 if (pf
->hw
.partition_id
!= 1) {
8355 dev_info(&pf
->pdev
->dev
,
8356 "Commit BW only works on partition 1! This is partition %d",
8357 pf
->hw
.partition_id
);
8358 ret
= I40E_NOT_SUPPORTED
;
8362 /* Acquire NVM for read access */
8363 ret
= i40e_acquire_nvm(&pf
->hw
, I40E_RESOURCE_READ
);
8364 last_aq_status
= pf
->hw
.aq
.asq_last_status
;
8366 dev_info(&pf
->pdev
->dev
,
8367 "Cannot acquire NVM for read access, err %s aq_err %s\n",
8368 i40e_stat_str(&pf
->hw
, ret
),
8369 i40e_aq_str(&pf
->hw
, last_aq_status
));
8373 /* Read word 0x10 of NVM - SW compatibility word 1 */
8374 ret
= i40e_aq_read_nvm(&pf
->hw
,
8375 I40E_SR_NVM_CONTROL_WORD
,
8376 0x10, sizeof(nvm_word
), &nvm_word
,
8378 /* Save off last admin queue command status before releasing
8381 last_aq_status
= pf
->hw
.aq
.asq_last_status
;
8382 i40e_release_nvm(&pf
->hw
);
8384 dev_info(&pf
->pdev
->dev
, "NVM read error, err %s aq_err %s\n",
8385 i40e_stat_str(&pf
->hw
, ret
),
8386 i40e_aq_str(&pf
->hw
, last_aq_status
));
8390 /* Wait a bit for NVM release to complete */
8393 /* Acquire NVM for write access */
8394 ret
= i40e_acquire_nvm(&pf
->hw
, I40E_RESOURCE_WRITE
);
8395 last_aq_status
= pf
->hw
.aq
.asq_last_status
;
8397 dev_info(&pf
->pdev
->dev
,
8398 "Cannot acquire NVM for write access, err %s aq_err %s\n",
8399 i40e_stat_str(&pf
->hw
, ret
),
8400 i40e_aq_str(&pf
->hw
, last_aq_status
));
8403 /* Write it back out unchanged to initiate update NVM,
8404 * which will force a write of the shadow (alt) RAM to
8405 * the NVM - thus storing the bandwidth values permanently.
8407 ret
= i40e_aq_update_nvm(&pf
->hw
,
8408 I40E_SR_NVM_CONTROL_WORD
,
8409 0x10, sizeof(nvm_word
),
8410 &nvm_word
, true, NULL
);
8411 /* Save off last admin queue command status before releasing
8414 last_aq_status
= pf
->hw
.aq
.asq_last_status
;
8415 i40e_release_nvm(&pf
->hw
);
8417 dev_info(&pf
->pdev
->dev
,
8418 "BW settings NOT SAVED, err %s aq_err %s\n",
8419 i40e_stat_str(&pf
->hw
, ret
),
8420 i40e_aq_str(&pf
->hw
, last_aq_status
));
8427 * i40e_sw_init - Initialize general software structures (struct i40e_pf)
8428 * @pf: board private structure to initialize
8430 * i40e_sw_init initializes the Adapter private data structure.
8431 * Fields are initialized based on PCI device information and
8432 * OS network device settings (MTU size).
8434 static int i40e_sw_init(struct i40e_pf
*pf
)
8439 pf
->msg_enable
= netif_msg_init(I40E_DEFAULT_MSG_ENABLE
,
8440 (NETIF_MSG_DRV
|NETIF_MSG_PROBE
|NETIF_MSG_LINK
));
8441 if (debug
!= -1 && debug
!= I40E_DEFAULT_MSG_ENABLE
) {
8442 if (I40E_DEBUG_USER
& debug
)
8443 pf
->hw
.debug_mask
= debug
;
8444 pf
->msg_enable
= netif_msg_init((debug
& ~I40E_DEBUG_USER
),
8445 I40E_DEFAULT_MSG_ENABLE
);
8448 /* Set default capability flags */
8449 pf
->flags
= I40E_FLAG_RX_CSUM_ENABLED
|
8450 I40E_FLAG_MSI_ENABLED
|
8451 I40E_FLAG_MSIX_ENABLED
;
8453 if (iommu_present(&pci_bus_type
))
8454 pf
->flags
|= I40E_FLAG_RX_PS_ENABLED
;
8456 pf
->flags
|= I40E_FLAG_RX_1BUF_ENABLED
;
8458 /* Set default ITR */
8459 pf
->rx_itr_default
= I40E_ITR_DYNAMIC
| I40E_ITR_RX_DEF
;
8460 pf
->tx_itr_default
= I40E_ITR_DYNAMIC
| I40E_ITR_TX_DEF
;
8462 /* Depending on PF configurations, it is possible that the RSS
8463 * maximum might end up larger than the available queues
8465 pf
->rss_size_max
= BIT(pf
->hw
.func_caps
.rss_table_entry_width
);
8466 pf
->alloc_rss_size
= 1;
8467 pf
->rss_table_size
= pf
->hw
.func_caps
.rss_table_size
;
8468 pf
->rss_size_max
= min_t(int, pf
->rss_size_max
,
8469 pf
->hw
.func_caps
.num_tx_qp
);
8470 if (pf
->hw
.func_caps
.rss
) {
8471 pf
->flags
|= I40E_FLAG_RSS_ENABLED
;
8472 pf
->alloc_rss_size
= min_t(int, pf
->rss_size_max
,
8476 /* MFP mode enabled */
8477 if (pf
->hw
.func_caps
.npar_enable
|| pf
->hw
.func_caps
.flex10_enable
) {
8478 pf
->flags
|= I40E_FLAG_MFP_ENABLED
;
8479 dev_info(&pf
->pdev
->dev
, "MFP mode Enabled\n");
8480 if (i40e_get_npar_bw_setting(pf
))
8481 dev_warn(&pf
->pdev
->dev
,
8482 "Could not get NPAR bw settings\n");
8484 dev_info(&pf
->pdev
->dev
,
8485 "Min BW = %8.8x, Max BW = %8.8x\n",
8486 pf
->npar_min_bw
, pf
->npar_max_bw
);
8489 /* FW/NVM is not yet fixed in this regard */
8490 if ((pf
->hw
.func_caps
.fd_filters_guaranteed
> 0) ||
8491 (pf
->hw
.func_caps
.fd_filters_best_effort
> 0)) {
8492 pf
->flags
|= I40E_FLAG_FD_ATR_ENABLED
;
8493 pf
->atr_sample_rate
= I40E_DEFAULT_ATR_SAMPLE_RATE
;
8494 if (pf
->flags
& I40E_FLAG_MFP_ENABLED
&&
8495 pf
->hw
.num_partitions
> 1)
8496 dev_info(&pf
->pdev
->dev
,
8497 "Flow Director Sideband mode Disabled in MFP mode\n");
8499 pf
->flags
|= I40E_FLAG_FD_SB_ENABLED
;
8500 pf
->fdir_pf_filter_count
=
8501 pf
->hw
.func_caps
.fd_filters_guaranteed
;
8502 pf
->hw
.fdir_shared_filter_count
=
8503 pf
->hw
.func_caps
.fd_filters_best_effort
;
8506 if (i40e_is_mac_710(&pf
->hw
) &&
8507 (((pf
->hw
.aq
.fw_maj_ver
== 4) && (pf
->hw
.aq
.fw_min_ver
< 33)) ||
8508 (pf
->hw
.aq
.fw_maj_ver
< 4))) {
8509 pf
->flags
|= I40E_FLAG_RESTART_AUTONEG
;
8510 /* No DCB support for FW < v4.33 */
8511 pf
->flags
|= I40E_FLAG_NO_DCB_SUPPORT
;
8514 /* Disable FW LLDP if FW < v4.3 */
8515 if (i40e_is_mac_710(&pf
->hw
) &&
8516 (((pf
->hw
.aq
.fw_maj_ver
== 4) && (pf
->hw
.aq
.fw_min_ver
< 3)) ||
8517 (pf
->hw
.aq
.fw_maj_ver
< 4)))
8518 pf
->flags
|= I40E_FLAG_STOP_FW_LLDP
;
8520 /* Use the FW Set LLDP MIB API if FW > v4.40 */
8521 if (i40e_is_mac_710(&pf
->hw
) &&
8522 (((pf
->hw
.aq
.fw_maj_ver
== 4) && (pf
->hw
.aq
.fw_min_ver
>= 40)) ||
8523 (pf
->hw
.aq
.fw_maj_ver
>= 5)))
8524 pf
->flags
|= I40E_FLAG_USE_SET_LLDP_MIB
;
8526 if (pf
->hw
.func_caps
.vmdq
) {
8527 pf
->num_vmdq_vsis
= I40E_DEFAULT_NUM_VMDQ_VSI
;
8528 pf
->flags
|= I40E_FLAG_VMDQ_ENABLED
;
8529 pf
->num_vmdq_qps
= i40e_default_queues_per_vmdq(pf
);
8532 if (pf
->hw
.func_caps
.iwarp
) {
8533 pf
->flags
|= I40E_FLAG_IWARP_ENABLED
;
8534 /* IWARP needs one extra vector for CQP just like MISC.*/
8535 pf
->num_iwarp_msix
= (int)num_online_cpus() + 1;
8539 i40e_init_pf_fcoe(pf
);
8541 #endif /* I40E_FCOE */
8542 #ifdef CONFIG_PCI_IOV
8543 if (pf
->hw
.func_caps
.num_vfs
&& pf
->hw
.partition_id
== 1) {
8544 pf
->num_vf_qps
= I40E_DEFAULT_QUEUES_PER_VF
;
8545 pf
->flags
|= I40E_FLAG_SRIOV_ENABLED
;
8546 pf
->num_req_vfs
= min_t(int,
8547 pf
->hw
.func_caps
.num_vfs
,
8550 #endif /* CONFIG_PCI_IOV */
8551 if (pf
->hw
.mac
.type
== I40E_MAC_X722
) {
8552 pf
->flags
|= I40E_FLAG_RSS_AQ_CAPABLE
|
8553 I40E_FLAG_128_QP_RSS_CAPABLE
|
8554 I40E_FLAG_HW_ATR_EVICT_CAPABLE
|
8555 I40E_FLAG_OUTER_UDP_CSUM_CAPABLE
|
8556 I40E_FLAG_WB_ON_ITR_CAPABLE
|
8557 I40E_FLAG_MULTIPLE_TCP_UDP_RSS_PCTYPE
|
8558 I40E_FLAG_NO_PCI_LINK_CHECK
|
8559 I40E_FLAG_100M_SGMII_CAPABLE
|
8560 I40E_FLAG_USE_SET_LLDP_MIB
|
8561 I40E_FLAG_GENEVE_OFFLOAD_CAPABLE
;
8562 } else if ((pf
->hw
.aq
.api_maj_ver
> 1) ||
8563 ((pf
->hw
.aq
.api_maj_ver
== 1) &&
8564 (pf
->hw
.aq
.api_min_ver
> 4))) {
8565 /* Supported in FW API version higher than 1.4 */
8566 pf
->flags
|= I40E_FLAG_GENEVE_OFFLOAD_CAPABLE
;
8567 pf
->auto_disable_flags
= I40E_FLAG_HW_ATR_EVICT_CAPABLE
;
8569 pf
->auto_disable_flags
= I40E_FLAG_HW_ATR_EVICT_CAPABLE
;
8572 pf
->eeprom_version
= 0xDEAD;
8573 pf
->lan_veb
= I40E_NO_VEB
;
8574 pf
->lan_vsi
= I40E_NO_VSI
;
8576 /* By default FW has this off for performance reasons */
8577 pf
->flags
&= ~I40E_FLAG_VEB_STATS_ENABLED
;
8579 /* set up queue assignment tracking */
8580 size
= sizeof(struct i40e_lump_tracking
)
8581 + (sizeof(u16
) * pf
->hw
.func_caps
.num_tx_qp
);
8582 pf
->qp_pile
= kzalloc(size
, GFP_KERNEL
);
8587 pf
->qp_pile
->num_entries
= pf
->hw
.func_caps
.num_tx_qp
;
8588 pf
->qp_pile
->search_hint
= 0;
8590 pf
->tx_timeout_recovery_level
= 1;
8592 mutex_init(&pf
->switch_mutex
);
8594 /* If NPAR is enabled nudge the Tx scheduler */
8595 if (pf
->hw
.func_caps
.npar_enable
&& (!i40e_get_npar_bw_setting(pf
)))
8596 i40e_set_npar_bw_setting(pf
);
8603 * i40e_set_ntuple - set the ntuple feature flag and take action
8604 * @pf: board private structure to initialize
8605 * @features: the feature set that the stack is suggesting
8607 * returns a bool to indicate if reset needs to happen
8609 bool i40e_set_ntuple(struct i40e_pf
*pf
, netdev_features_t features
)
8611 bool need_reset
= false;
8613 /* Check if Flow Director n-tuple support was enabled or disabled. If
8614 * the state changed, we need to reset.
8616 if (features
& NETIF_F_NTUPLE
) {
8617 /* Enable filters and mark for reset */
8618 if (!(pf
->flags
& I40E_FLAG_FD_SB_ENABLED
))
8620 pf
->flags
|= I40E_FLAG_FD_SB_ENABLED
;
8622 /* turn off filters, mark for reset and clear SW filter list */
8623 if (pf
->flags
& I40E_FLAG_FD_SB_ENABLED
) {
8625 i40e_fdir_filter_exit(pf
);
8627 pf
->flags
&= ~I40E_FLAG_FD_SB_ENABLED
;
8628 pf
->auto_disable_flags
&= ~I40E_FLAG_FD_SB_ENABLED
;
8629 /* reset fd counters */
8630 pf
->fd_add_err
= pf
->fd_atr_cnt
= pf
->fd_tcp_rule
= 0;
8631 pf
->fdir_pf_active_filters
= 0;
8632 pf
->flags
|= I40E_FLAG_FD_ATR_ENABLED
;
8633 if (I40E_DEBUG_FD
& pf
->hw
.debug_mask
)
8634 dev_info(&pf
->pdev
->dev
, "ATR re-enabled.\n");
8635 /* if ATR was auto disabled it can be re-enabled. */
8636 if ((pf
->flags
& I40E_FLAG_FD_ATR_ENABLED
) &&
8637 (pf
->auto_disable_flags
& I40E_FLAG_FD_ATR_ENABLED
))
8638 pf
->auto_disable_flags
&= ~I40E_FLAG_FD_ATR_ENABLED
;
8644 * i40e_set_features - set the netdev feature flags
8645 * @netdev: ptr to the netdev being adjusted
8646 * @features: the feature set that the stack is suggesting
8648 static int i40e_set_features(struct net_device
*netdev
,
8649 netdev_features_t features
)
8651 struct i40e_netdev_priv
*np
= netdev_priv(netdev
);
8652 struct i40e_vsi
*vsi
= np
->vsi
;
8653 struct i40e_pf
*pf
= vsi
->back
;
8656 if (features
& NETIF_F_HW_VLAN_CTAG_RX
)
8657 i40e_vlan_stripping_enable(vsi
);
8659 i40e_vlan_stripping_disable(vsi
);
8661 need_reset
= i40e_set_ntuple(pf
, features
);
8664 i40e_do_reset(pf
, BIT_ULL(__I40E_PF_RESET_REQUESTED
));
8669 #if IS_ENABLED(CONFIG_VXLAN) || IS_ENABLED(CONFIG_GENEVE)
8671 * i40e_get_udp_port_idx - Lookup a possibly offloaded for Rx UDP port
8672 * @pf: board private structure
8673 * @port: The UDP port to look up
8675 * Returns the index number or I40E_MAX_PF_UDP_OFFLOAD_PORTS if port not found
8677 static u8
i40e_get_udp_port_idx(struct i40e_pf
*pf
, __be16 port
)
8681 for (i
= 0; i
< I40E_MAX_PF_UDP_OFFLOAD_PORTS
; i
++) {
8682 if (pf
->udp_ports
[i
].index
== port
)
8691 #if IS_ENABLED(CONFIG_VXLAN)
8693 * i40e_add_vxlan_port - Get notifications about VXLAN ports that come up
8694 * @netdev: This physical port's netdev
8695 * @sa_family: Socket Family that VXLAN is notifying us about
8696 * @port: New UDP port number that VXLAN started listening to
8698 static void i40e_add_vxlan_port(struct net_device
*netdev
,
8699 sa_family_t sa_family
, __be16 port
)
8701 struct i40e_netdev_priv
*np
= netdev_priv(netdev
);
8702 struct i40e_vsi
*vsi
= np
->vsi
;
8703 struct i40e_pf
*pf
= vsi
->back
;
8707 idx
= i40e_get_udp_port_idx(pf
, port
);
8709 /* Check if port already exists */
8710 if (idx
< I40E_MAX_PF_UDP_OFFLOAD_PORTS
) {
8711 netdev_info(netdev
, "vxlan port %d already offloaded\n",
8716 /* Now check if there is space to add the new port */
8717 next_idx
= i40e_get_udp_port_idx(pf
, 0);
8719 if (next_idx
== I40E_MAX_PF_UDP_OFFLOAD_PORTS
) {
8720 netdev_info(netdev
, "maximum number of vxlan UDP ports reached, not adding port %d\n",
8725 /* New port: add it and mark its index in the bitmap */
8726 pf
->udp_ports
[next_idx
].index
= port
;
8727 pf
->udp_ports
[next_idx
].type
= I40E_AQC_TUNNEL_TYPE_VXLAN
;
8728 pf
->pending_udp_bitmap
|= BIT_ULL(next_idx
);
8729 pf
->flags
|= I40E_FLAG_UDP_FILTER_SYNC
;
8733 * i40e_del_vxlan_port - Get notifications about VXLAN ports that go away
8734 * @netdev: This physical port's netdev
8735 * @sa_family: Socket Family that VXLAN is notifying us about
8736 * @port: UDP port number that VXLAN stopped listening to
8738 static void i40e_del_vxlan_port(struct net_device
*netdev
,
8739 sa_family_t sa_family
, __be16 port
)
8741 struct i40e_netdev_priv
*np
= netdev_priv(netdev
);
8742 struct i40e_vsi
*vsi
= np
->vsi
;
8743 struct i40e_pf
*pf
= vsi
->back
;
8746 idx
= i40e_get_udp_port_idx(pf
, port
);
8748 /* Check if port already exists */
8749 if (idx
< I40E_MAX_PF_UDP_OFFLOAD_PORTS
) {
8750 /* if port exists, set it to 0 (mark for deletion)
8751 * and make it pending
8753 pf
->udp_ports
[idx
].index
= 0;
8754 pf
->pending_udp_bitmap
|= BIT_ULL(idx
);
8755 pf
->flags
|= I40E_FLAG_UDP_FILTER_SYNC
;
8757 netdev_warn(netdev
, "vxlan port %d was not found, not deleting\n",
8763 #if IS_ENABLED(CONFIG_GENEVE)
8765 * i40e_add_geneve_port - Get notifications about GENEVE ports that come up
8766 * @netdev: This physical port's netdev
8767 * @sa_family: Socket Family that GENEVE is notifying us about
8768 * @port: New UDP port number that GENEVE started listening to
8770 static void i40e_add_geneve_port(struct net_device
*netdev
,
8771 sa_family_t sa_family
, __be16 port
)
8773 struct i40e_netdev_priv
*np
= netdev_priv(netdev
);
8774 struct i40e_vsi
*vsi
= np
->vsi
;
8775 struct i40e_pf
*pf
= vsi
->back
;
8779 if (!(pf
->flags
& I40E_FLAG_GENEVE_OFFLOAD_CAPABLE
))
8782 idx
= i40e_get_udp_port_idx(pf
, port
);
8784 /* Check if port already exists */
8785 if (idx
< I40E_MAX_PF_UDP_OFFLOAD_PORTS
) {
8786 netdev_info(netdev
, "udp port %d already offloaded\n",
8791 /* Now check if there is space to add the new port */
8792 next_idx
= i40e_get_udp_port_idx(pf
, 0);
8794 if (next_idx
== I40E_MAX_PF_UDP_OFFLOAD_PORTS
) {
8795 netdev_info(netdev
, "maximum number of UDP ports reached, not adding port %d\n",
8800 /* New port: add it and mark its index in the bitmap */
8801 pf
->udp_ports
[next_idx
].index
= port
;
8802 pf
->udp_ports
[next_idx
].type
= I40E_AQC_TUNNEL_TYPE_NGE
;
8803 pf
->pending_udp_bitmap
|= BIT_ULL(next_idx
);
8804 pf
->flags
|= I40E_FLAG_UDP_FILTER_SYNC
;
8806 dev_info(&pf
->pdev
->dev
, "adding geneve port %d\n", ntohs(port
));
8810 * i40e_del_geneve_port - Get notifications about GENEVE ports that go away
8811 * @netdev: This physical port's netdev
8812 * @sa_family: Socket Family that GENEVE is notifying us about
8813 * @port: UDP port number that GENEVE stopped listening to
8815 static void i40e_del_geneve_port(struct net_device
*netdev
,
8816 sa_family_t sa_family
, __be16 port
)
8818 struct i40e_netdev_priv
*np
= netdev_priv(netdev
);
8819 struct i40e_vsi
*vsi
= np
->vsi
;
8820 struct i40e_pf
*pf
= vsi
->back
;
8823 if (!(pf
->flags
& I40E_FLAG_GENEVE_OFFLOAD_CAPABLE
))
8826 idx
= i40e_get_udp_port_idx(pf
, port
);
8828 /* Check if port already exists */
8829 if (idx
< I40E_MAX_PF_UDP_OFFLOAD_PORTS
) {
8830 /* if port exists, set it to 0 (mark for deletion)
8831 * and make it pending
8833 pf
->udp_ports
[idx
].index
= 0;
8834 pf
->pending_udp_bitmap
|= BIT_ULL(idx
);
8835 pf
->flags
|= I40E_FLAG_UDP_FILTER_SYNC
;
8837 dev_info(&pf
->pdev
->dev
, "deleting geneve port %d\n",
8840 netdev_warn(netdev
, "geneve port %d was not found, not deleting\n",
8846 static int i40e_get_phys_port_id(struct net_device
*netdev
,
8847 struct netdev_phys_item_id
*ppid
)
8849 struct i40e_netdev_priv
*np
= netdev_priv(netdev
);
8850 struct i40e_pf
*pf
= np
->vsi
->back
;
8851 struct i40e_hw
*hw
= &pf
->hw
;
8853 if (!(pf
->flags
& I40E_FLAG_PORT_ID_VALID
))
8856 ppid
->id_len
= min_t(int, sizeof(hw
->mac
.port_addr
), sizeof(ppid
->id
));
8857 memcpy(ppid
->id
, hw
->mac
.port_addr
, ppid
->id_len
);
8863 * i40e_ndo_fdb_add - add an entry to the hardware database
8864 * @ndm: the input from the stack
8865 * @tb: pointer to array of nladdr (unused)
8866 * @dev: the net device pointer
8867 * @addr: the MAC address entry being added
8868 * @flags: instructions from stack about fdb operation
8870 static int i40e_ndo_fdb_add(struct ndmsg
*ndm
, struct nlattr
*tb
[],
8871 struct net_device
*dev
,
8872 const unsigned char *addr
, u16 vid
,
8875 struct i40e_netdev_priv
*np
= netdev_priv(dev
);
8876 struct i40e_pf
*pf
= np
->vsi
->back
;
8879 if (!(pf
->flags
& I40E_FLAG_SRIOV_ENABLED
))
8883 pr_info("%s: vlans aren't supported yet for dev_uc|mc_add()\n", dev
->name
);
8887 /* Hardware does not support aging addresses so if a
8888 * ndm_state is given only allow permanent addresses
8890 if (ndm
->ndm_state
&& !(ndm
->ndm_state
& NUD_PERMANENT
)) {
8891 netdev_info(dev
, "FDB only supports static addresses\n");
8895 if (is_unicast_ether_addr(addr
) || is_link_local_ether_addr(addr
))
8896 err
= dev_uc_add_excl(dev
, addr
);
8897 else if (is_multicast_ether_addr(addr
))
8898 err
= dev_mc_add_excl(dev
, addr
);
8902 /* Only return duplicate errors if NLM_F_EXCL is set */
8903 if (err
== -EEXIST
&& !(flags
& NLM_F_EXCL
))
8910 * i40e_ndo_bridge_setlink - Set the hardware bridge mode
8911 * @dev: the netdev being configured
8912 * @nlh: RTNL message
8914 * Inserts a new hardware bridge if not already created and
8915 * enables the bridging mode requested (VEB or VEPA). If the
8916 * hardware bridge has already been inserted and the request
8917 * is to change the mode then that requires a PF reset to
8918 * allow rebuild of the components with required hardware
8919 * bridge mode enabled.
8921 static int i40e_ndo_bridge_setlink(struct net_device
*dev
,
8922 struct nlmsghdr
*nlh
,
8925 struct i40e_netdev_priv
*np
= netdev_priv(dev
);
8926 struct i40e_vsi
*vsi
= np
->vsi
;
8927 struct i40e_pf
*pf
= vsi
->back
;
8928 struct i40e_veb
*veb
= NULL
;
8929 struct nlattr
*attr
, *br_spec
;
8932 /* Only for PF VSI for now */
8933 if (vsi
->seid
!= pf
->vsi
[pf
->lan_vsi
]->seid
)
8936 /* Find the HW bridge for PF VSI */
8937 for (i
= 0; i
< I40E_MAX_VEB
&& !veb
; i
++) {
8938 if (pf
->veb
[i
] && pf
->veb
[i
]->seid
== vsi
->uplink_seid
)
8942 br_spec
= nlmsg_find_attr(nlh
, sizeof(struct ifinfomsg
), IFLA_AF_SPEC
);
8944 nla_for_each_nested(attr
, br_spec
, rem
) {
8947 if (nla_type(attr
) != IFLA_BRIDGE_MODE
)
8950 mode
= nla_get_u16(attr
);
8951 if ((mode
!= BRIDGE_MODE_VEPA
) &&
8952 (mode
!= BRIDGE_MODE_VEB
))
8955 /* Insert a new HW bridge */
8957 veb
= i40e_veb_setup(pf
, 0, vsi
->uplink_seid
, vsi
->seid
,
8958 vsi
->tc_config
.enabled_tc
);
8960 veb
->bridge_mode
= mode
;
8961 i40e_config_bridge_mode(veb
);
8963 /* No Bridge HW offload available */
8967 } else if (mode
!= veb
->bridge_mode
) {
8968 /* Existing HW bridge but different mode needs reset */
8969 veb
->bridge_mode
= mode
;
8970 /* TODO: If no VFs or VMDq VSIs, disallow VEB mode */
8971 if (mode
== BRIDGE_MODE_VEB
)
8972 pf
->flags
|= I40E_FLAG_VEB_MODE_ENABLED
;
8974 pf
->flags
&= ~I40E_FLAG_VEB_MODE_ENABLED
;
8975 i40e_do_reset(pf
, BIT_ULL(__I40E_PF_RESET_REQUESTED
));
8984 * i40e_ndo_bridge_getlink - Get the hardware bridge mode
8987 * @seq: RTNL message seq #
8988 * @dev: the netdev being configured
8989 * @filter_mask: unused
8990 * @nlflags: netlink flags passed in
8992 * Return the mode in which the hardware bridge is operating in
8995 static int i40e_ndo_bridge_getlink(struct sk_buff
*skb
, u32 pid
, u32 seq
,
8996 struct net_device
*dev
,
8997 u32 __always_unused filter_mask
,
9000 struct i40e_netdev_priv
*np
= netdev_priv(dev
);
9001 struct i40e_vsi
*vsi
= np
->vsi
;
9002 struct i40e_pf
*pf
= vsi
->back
;
9003 struct i40e_veb
*veb
= NULL
;
9006 /* Only for PF VSI for now */
9007 if (vsi
->seid
!= pf
->vsi
[pf
->lan_vsi
]->seid
)
9010 /* Find the HW bridge for the PF VSI */
9011 for (i
= 0; i
< I40E_MAX_VEB
&& !veb
; i
++) {
9012 if (pf
->veb
[i
] && pf
->veb
[i
]->seid
== vsi
->uplink_seid
)
9019 return ndo_dflt_bridge_getlink(skb
, pid
, seq
, dev
, veb
->bridge_mode
,
9020 nlflags
, 0, 0, filter_mask
, NULL
);
9023 /* Hardware supports L4 tunnel length of 128B (=2^7) which includes
9024 * inner mac plus all inner ethertypes.
9026 #define I40E_MAX_TUNNEL_HDR_LEN 128
9028 * i40e_features_check - Validate encapsulated packet conforms to limits
9030 * @dev: This physical port's netdev
9031 * @features: Offload features that the stack believes apply
9033 static netdev_features_t
i40e_features_check(struct sk_buff
*skb
,
9034 struct net_device
*dev
,
9035 netdev_features_t features
)
9037 if (skb
->encapsulation
&&
9038 ((skb_inner_network_header(skb
) - skb_transport_header(skb
)) >
9039 I40E_MAX_TUNNEL_HDR_LEN
))
9040 return features
& ~(NETIF_F_CSUM_MASK
| NETIF_F_GSO_MASK
);
9045 static const struct net_device_ops i40e_netdev_ops
= {
9046 .ndo_open
= i40e_open
,
9047 .ndo_stop
= i40e_close
,
9048 .ndo_start_xmit
= i40e_lan_xmit_frame
,
9049 .ndo_get_stats64
= i40e_get_netdev_stats_struct
,
9050 .ndo_set_rx_mode
= i40e_set_rx_mode
,
9051 .ndo_validate_addr
= eth_validate_addr
,
9052 .ndo_set_mac_address
= i40e_set_mac
,
9053 .ndo_change_mtu
= i40e_change_mtu
,
9054 .ndo_do_ioctl
= i40e_ioctl
,
9055 .ndo_tx_timeout
= i40e_tx_timeout
,
9056 .ndo_vlan_rx_add_vid
= i40e_vlan_rx_add_vid
,
9057 .ndo_vlan_rx_kill_vid
= i40e_vlan_rx_kill_vid
,
9058 #ifdef CONFIG_NET_POLL_CONTROLLER
9059 .ndo_poll_controller
= i40e_netpoll
,
9061 .ndo_setup_tc
= __i40e_setup_tc
,
9063 .ndo_fcoe_enable
= i40e_fcoe_enable
,
9064 .ndo_fcoe_disable
= i40e_fcoe_disable
,
9066 .ndo_set_features
= i40e_set_features
,
9067 .ndo_set_vf_mac
= i40e_ndo_set_vf_mac
,
9068 .ndo_set_vf_vlan
= i40e_ndo_set_vf_port_vlan
,
9069 .ndo_set_vf_rate
= i40e_ndo_set_vf_bw
,
9070 .ndo_get_vf_config
= i40e_ndo_get_vf_config
,
9071 .ndo_set_vf_link_state
= i40e_ndo_set_vf_link_state
,
9072 .ndo_set_vf_spoofchk
= i40e_ndo_set_vf_spoofchk
,
9073 .ndo_set_vf_trust
= i40e_ndo_set_vf_trust
,
9074 #if IS_ENABLED(CONFIG_VXLAN)
9075 .ndo_add_vxlan_port
= i40e_add_vxlan_port
,
9076 .ndo_del_vxlan_port
= i40e_del_vxlan_port
,
9078 #if IS_ENABLED(CONFIG_GENEVE)
9079 .ndo_add_geneve_port
= i40e_add_geneve_port
,
9080 .ndo_del_geneve_port
= i40e_del_geneve_port
,
9082 .ndo_get_phys_port_id
= i40e_get_phys_port_id
,
9083 .ndo_fdb_add
= i40e_ndo_fdb_add
,
9084 .ndo_features_check
= i40e_features_check
,
9085 .ndo_bridge_getlink
= i40e_ndo_bridge_getlink
,
9086 .ndo_bridge_setlink
= i40e_ndo_bridge_setlink
,
9090 * i40e_config_netdev - Setup the netdev flags
9091 * @vsi: the VSI being configured
9093 * Returns 0 on success, negative value on failure
9095 static int i40e_config_netdev(struct i40e_vsi
*vsi
)
9097 u8 brdcast
[ETH_ALEN
] = {0xff, 0xff, 0xff, 0xff, 0xff, 0xff};
9098 struct i40e_pf
*pf
= vsi
->back
;
9099 struct i40e_hw
*hw
= &pf
->hw
;
9100 struct i40e_netdev_priv
*np
;
9101 struct net_device
*netdev
;
9102 u8 mac_addr
[ETH_ALEN
];
9105 etherdev_size
= sizeof(struct i40e_netdev_priv
);
9106 netdev
= alloc_etherdev_mq(etherdev_size
, vsi
->alloc_queue_pairs
);
9110 vsi
->netdev
= netdev
;
9111 np
= netdev_priv(netdev
);
9114 netdev
->hw_enc_features
|= NETIF_F_SG
|
9118 NETIF_F_SOFT_FEATURES
|
9125 NETIF_F_GSO_UDP_TUNNEL
|
9126 NETIF_F_GSO_UDP_TUNNEL_CSUM
|
9132 if (!(pf
->flags
& I40E_FLAG_OUTER_UDP_CSUM_CAPABLE
))
9133 netdev
->hw_enc_features
^= NETIF_F_GSO_UDP_TUNNEL_CSUM
;
9135 /* record features VLANs can make use of */
9136 netdev
->vlan_features
|= netdev
->hw_enc_features
;
9138 if (!(pf
->flags
& I40E_FLAG_MFP_ENABLED
))
9139 netdev
->hw_features
|= NETIF_F_NTUPLE
;
9141 netdev
->hw_features
|= netdev
->hw_enc_features
|
9142 NETIF_F_HW_VLAN_CTAG_TX
|
9143 NETIF_F_HW_VLAN_CTAG_RX
;
9145 netdev
->features
|= netdev
->hw_features
| NETIF_F_HW_VLAN_CTAG_FILTER
;
9147 if (vsi
->type
== I40E_VSI_MAIN
) {
9148 SET_NETDEV_DEV(netdev
, &pf
->pdev
->dev
);
9149 ether_addr_copy(mac_addr
, hw
->mac
.perm_addr
);
9150 /* The following steps are necessary to prevent reception
9151 * of tagged packets - some older NVM configurations load a
9152 * default a MAC-VLAN filter that accepts any tagged packet
9153 * which must be replaced by a normal filter.
9155 if (!i40e_rm_default_mac_filter(vsi
, mac_addr
)) {
9156 spin_lock_bh(&vsi
->mac_filter_list_lock
);
9157 i40e_add_filter(vsi
, mac_addr
,
9158 I40E_VLAN_ANY
, false, true);
9159 spin_unlock_bh(&vsi
->mac_filter_list_lock
);
9161 } else if ((pf
->hw
.aq
.api_maj_ver
> 1) ||
9162 ((pf
->hw
.aq
.api_maj_ver
== 1) &&
9163 (pf
->hw
.aq
.api_min_ver
> 4))) {
9164 /* Supported in FW API version higher than 1.4 */
9165 pf
->flags
|= I40E_FLAG_GENEVE_OFFLOAD_CAPABLE
;
9166 pf
->auto_disable_flags
= I40E_FLAG_HW_ATR_EVICT_CAPABLE
;
9168 /* relate the VSI_VMDQ name to the VSI_MAIN name */
9169 snprintf(netdev
->name
, IFNAMSIZ
, "%sv%%d",
9170 pf
->vsi
[pf
->lan_vsi
]->netdev
->name
);
9171 random_ether_addr(mac_addr
);
9173 spin_lock_bh(&vsi
->mac_filter_list_lock
);
9174 i40e_add_filter(vsi
, mac_addr
, I40E_VLAN_ANY
, false, false);
9175 spin_unlock_bh(&vsi
->mac_filter_list_lock
);
9178 spin_lock_bh(&vsi
->mac_filter_list_lock
);
9179 i40e_add_filter(vsi
, brdcast
, I40E_VLAN_ANY
, false, false);
9180 spin_unlock_bh(&vsi
->mac_filter_list_lock
);
9182 ether_addr_copy(netdev
->dev_addr
, mac_addr
);
9183 ether_addr_copy(netdev
->perm_addr
, mac_addr
);
9185 netdev
->priv_flags
|= IFF_UNICAST_FLT
;
9186 netdev
->priv_flags
|= IFF_SUPP_NOFCS
;
9187 /* Setup netdev TC information */
9188 i40e_vsi_config_netdev_tc(vsi
, vsi
->tc_config
.enabled_tc
);
9190 netdev
->netdev_ops
= &i40e_netdev_ops
;
9191 netdev
->watchdog_timeo
= 5 * HZ
;
9192 i40e_set_ethtool_ops(netdev
);
9194 i40e_fcoe_config_netdev(netdev
, vsi
);
9201 * i40e_vsi_delete - Delete a VSI from the switch
9202 * @vsi: the VSI being removed
9204 * Returns 0 on success, negative value on failure
9206 static void i40e_vsi_delete(struct i40e_vsi
*vsi
)
9208 /* remove default VSI is not allowed */
9209 if (vsi
== vsi
->back
->vsi
[vsi
->back
->lan_vsi
])
9212 i40e_aq_delete_element(&vsi
->back
->hw
, vsi
->seid
, NULL
);
9216 * i40e_is_vsi_uplink_mode_veb - Check if the VSI's uplink bridge mode is VEB
9217 * @vsi: the VSI being queried
9219 * Returns 1 if HW bridge mode is VEB and return 0 in case of VEPA mode
9221 int i40e_is_vsi_uplink_mode_veb(struct i40e_vsi
*vsi
)
9223 struct i40e_veb
*veb
;
9224 struct i40e_pf
*pf
= vsi
->back
;
9226 /* Uplink is not a bridge so default to VEB */
9227 if (vsi
->veb_idx
== I40E_NO_VEB
)
9230 veb
= pf
->veb
[vsi
->veb_idx
];
9232 dev_info(&pf
->pdev
->dev
,
9233 "There is no veb associated with the bridge\n");
9237 /* Uplink is a bridge in VEPA mode */
9238 if (veb
->bridge_mode
& BRIDGE_MODE_VEPA
) {
9241 /* Uplink is a bridge in VEB mode */
9245 /* VEPA is now default bridge, so return 0 */
9250 * i40e_add_vsi - Add a VSI to the switch
9251 * @vsi: the VSI being configured
9253 * This initializes a VSI context depending on the VSI type to be added and
9254 * passes it down to the add_vsi aq command.
9256 static int i40e_add_vsi(struct i40e_vsi
*vsi
)
9259 u8 laa_macaddr
[ETH_ALEN
];
9260 bool found_laa_mac_filter
= false;
9261 struct i40e_pf
*pf
= vsi
->back
;
9262 struct i40e_hw
*hw
= &pf
->hw
;
9263 struct i40e_vsi_context ctxt
;
9264 struct i40e_mac_filter
*f
, *ftmp
;
9266 u8 enabled_tc
= 0x1; /* TC0 enabled */
9269 memset(&ctxt
, 0, sizeof(ctxt
));
9270 switch (vsi
->type
) {
9272 /* The PF's main VSI is already setup as part of the
9273 * device initialization, so we'll not bother with
9274 * the add_vsi call, but we will retrieve the current
9277 ctxt
.seid
= pf
->main_vsi_seid
;
9278 ctxt
.pf_num
= pf
->hw
.pf_id
;
9280 ret
= i40e_aq_get_vsi_params(&pf
->hw
, &ctxt
, NULL
);
9281 ctxt
.flags
= I40E_AQ_VSI_TYPE_PF
;
9283 dev_info(&pf
->pdev
->dev
,
9284 "couldn't get PF vsi config, err %s aq_err %s\n",
9285 i40e_stat_str(&pf
->hw
, ret
),
9286 i40e_aq_str(&pf
->hw
,
9287 pf
->hw
.aq
.asq_last_status
));
9290 vsi
->info
= ctxt
.info
;
9291 vsi
->info
.valid_sections
= 0;
9293 vsi
->seid
= ctxt
.seid
;
9294 vsi
->id
= ctxt
.vsi_number
;
9296 enabled_tc
= i40e_pf_get_tc_map(pf
);
9298 /* MFP mode setup queue map and update VSI */
9299 if ((pf
->flags
& I40E_FLAG_MFP_ENABLED
) &&
9300 !(pf
->hw
.func_caps
.iscsi
)) { /* NIC type PF */
9301 memset(&ctxt
, 0, sizeof(ctxt
));
9302 ctxt
.seid
= pf
->main_vsi_seid
;
9303 ctxt
.pf_num
= pf
->hw
.pf_id
;
9305 i40e_vsi_setup_queue_map(vsi
, &ctxt
, enabled_tc
, false);
9306 ret
= i40e_aq_update_vsi_params(hw
, &ctxt
, NULL
);
9308 dev_info(&pf
->pdev
->dev
,
9309 "update vsi failed, err %s aq_err %s\n",
9310 i40e_stat_str(&pf
->hw
, ret
),
9311 i40e_aq_str(&pf
->hw
,
9312 pf
->hw
.aq
.asq_last_status
));
9316 /* update the local VSI info queue map */
9317 i40e_vsi_update_queue_map(vsi
, &ctxt
);
9318 vsi
->info
.valid_sections
= 0;
9320 /* Default/Main VSI is only enabled for TC0
9321 * reconfigure it to enable all TCs that are
9322 * available on the port in SFP mode.
9323 * For MFP case the iSCSI PF would use this
9324 * flow to enable LAN+iSCSI TC.
9326 ret
= i40e_vsi_config_tc(vsi
, enabled_tc
);
9328 dev_info(&pf
->pdev
->dev
,
9329 "failed to configure TCs for main VSI tc_map 0x%08x, err %s aq_err %s\n",
9331 i40e_stat_str(&pf
->hw
, ret
),
9332 i40e_aq_str(&pf
->hw
,
9333 pf
->hw
.aq
.asq_last_status
));
9340 ctxt
.pf_num
= hw
->pf_id
;
9342 ctxt
.uplink_seid
= vsi
->uplink_seid
;
9343 ctxt
.connection_type
= I40E_AQ_VSI_CONN_TYPE_NORMAL
;
9344 ctxt
.flags
= I40E_AQ_VSI_TYPE_PF
;
9345 if ((pf
->flags
& I40E_FLAG_VEB_MODE_ENABLED
) &&
9346 (i40e_is_vsi_uplink_mode_veb(vsi
))) {
9347 ctxt
.info
.valid_sections
|=
9348 cpu_to_le16(I40E_AQ_VSI_PROP_SWITCH_VALID
);
9349 ctxt
.info
.switch_id
=
9350 cpu_to_le16(I40E_AQ_VSI_SW_ID_FLAG_ALLOW_LB
);
9352 i40e_vsi_setup_queue_map(vsi
, &ctxt
, enabled_tc
, true);
9355 case I40E_VSI_VMDQ2
:
9356 ctxt
.pf_num
= hw
->pf_id
;
9358 ctxt
.uplink_seid
= vsi
->uplink_seid
;
9359 ctxt
.connection_type
= I40E_AQ_VSI_CONN_TYPE_NORMAL
;
9360 ctxt
.flags
= I40E_AQ_VSI_TYPE_VMDQ2
;
9362 /* This VSI is connected to VEB so the switch_id
9363 * should be set to zero by default.
9365 if (i40e_is_vsi_uplink_mode_veb(vsi
)) {
9366 ctxt
.info
.valid_sections
|=
9367 cpu_to_le16(I40E_AQ_VSI_PROP_SWITCH_VALID
);
9368 ctxt
.info
.switch_id
=
9369 cpu_to_le16(I40E_AQ_VSI_SW_ID_FLAG_ALLOW_LB
);
9372 /* Setup the VSI tx/rx queue map for TC0 only for now */
9373 i40e_vsi_setup_queue_map(vsi
, &ctxt
, enabled_tc
, true);
9376 case I40E_VSI_SRIOV
:
9377 ctxt
.pf_num
= hw
->pf_id
;
9378 ctxt
.vf_num
= vsi
->vf_id
+ hw
->func_caps
.vf_base_id
;
9379 ctxt
.uplink_seid
= vsi
->uplink_seid
;
9380 ctxt
.connection_type
= I40E_AQ_VSI_CONN_TYPE_NORMAL
;
9381 ctxt
.flags
= I40E_AQ_VSI_TYPE_VF
;
9383 /* This VSI is connected to VEB so the switch_id
9384 * should be set to zero by default.
9386 if (i40e_is_vsi_uplink_mode_veb(vsi
)) {
9387 ctxt
.info
.valid_sections
|=
9388 cpu_to_le16(I40E_AQ_VSI_PROP_SWITCH_VALID
);
9389 ctxt
.info
.switch_id
=
9390 cpu_to_le16(I40E_AQ_VSI_SW_ID_FLAG_ALLOW_LB
);
9393 if (vsi
->back
->flags
& I40E_FLAG_IWARP_ENABLED
) {
9394 ctxt
.info
.valid_sections
|=
9395 cpu_to_le16(I40E_AQ_VSI_PROP_QUEUE_OPT_VALID
);
9396 ctxt
.info
.queueing_opt_flags
|=
9397 I40E_AQ_VSI_QUE_OPT_TCP_ENA
;
9400 ctxt
.info
.valid_sections
|= cpu_to_le16(I40E_AQ_VSI_PROP_VLAN_VALID
);
9401 ctxt
.info
.port_vlan_flags
|= I40E_AQ_VSI_PVLAN_MODE_ALL
;
9402 if (pf
->vf
[vsi
->vf_id
].spoofchk
) {
9403 ctxt
.info
.valid_sections
|=
9404 cpu_to_le16(I40E_AQ_VSI_PROP_SECURITY_VALID
);
9405 ctxt
.info
.sec_flags
|=
9406 (I40E_AQ_VSI_SEC_FLAG_ENABLE_VLAN_CHK
|
9407 I40E_AQ_VSI_SEC_FLAG_ENABLE_MAC_CHK
);
9409 /* Setup the VSI tx/rx queue map for TC0 only for now */
9410 i40e_vsi_setup_queue_map(vsi
, &ctxt
, enabled_tc
, true);
9415 ret
= i40e_fcoe_vsi_init(vsi
, &ctxt
);
9417 dev_info(&pf
->pdev
->dev
, "failed to initialize FCoE VSI\n");
9422 #endif /* I40E_FCOE */
9423 case I40E_VSI_IWARP
:
9424 /* send down message to iWARP */
9431 if (vsi
->type
!= I40E_VSI_MAIN
) {
9432 ret
= i40e_aq_add_vsi(hw
, &ctxt
, NULL
);
9434 dev_info(&vsi
->back
->pdev
->dev
,
9435 "add vsi failed, err %s aq_err %s\n",
9436 i40e_stat_str(&pf
->hw
, ret
),
9437 i40e_aq_str(&pf
->hw
,
9438 pf
->hw
.aq
.asq_last_status
));
9442 vsi
->info
= ctxt
.info
;
9443 vsi
->info
.valid_sections
= 0;
9444 vsi
->seid
= ctxt
.seid
;
9445 vsi
->id
= ctxt
.vsi_number
;
9448 spin_lock_bh(&vsi
->mac_filter_list_lock
);
9449 /* If macvlan filters already exist, force them to get loaded */
9450 list_for_each_entry_safe(f
, ftmp
, &vsi
->mac_filter_list
, list
) {
9454 /* Expected to have only one MAC filter entry for LAA in list */
9455 if (f
->is_laa
&& vsi
->type
== I40E_VSI_MAIN
) {
9456 ether_addr_copy(laa_macaddr
, f
->macaddr
);
9457 found_laa_mac_filter
= true;
9460 spin_unlock_bh(&vsi
->mac_filter_list_lock
);
9462 if (found_laa_mac_filter
) {
9463 struct i40e_aqc_remove_macvlan_element_data element
;
9465 memset(&element
, 0, sizeof(element
));
9466 ether_addr_copy(element
.mac_addr
, laa_macaddr
);
9467 element
.flags
= I40E_AQC_MACVLAN_DEL_PERFECT_MATCH
;
9468 ret
= i40e_aq_remove_macvlan(hw
, vsi
->seid
,
9471 /* some older FW has a different default */
9473 I40E_AQC_MACVLAN_DEL_IGNORE_VLAN
;
9474 i40e_aq_remove_macvlan(hw
, vsi
->seid
,
9478 i40e_aq_mac_address_write(hw
,
9479 I40E_AQC_WRITE_TYPE_LAA_WOL
,
9484 vsi
->flags
|= I40E_VSI_FLAG_FILTER_CHANGED
;
9485 pf
->flags
|= I40E_FLAG_FILTER_SYNC
;
9488 /* Update VSI BW information */
9489 ret
= i40e_vsi_get_bw_info(vsi
);
9491 dev_info(&pf
->pdev
->dev
,
9492 "couldn't get vsi bw info, err %s aq_err %s\n",
9493 i40e_stat_str(&pf
->hw
, ret
),
9494 i40e_aq_str(&pf
->hw
, pf
->hw
.aq
.asq_last_status
));
9495 /* VSI is already added so not tearing that up */
9504 * i40e_vsi_release - Delete a VSI and free its resources
9505 * @vsi: the VSI being removed
9507 * Returns 0 on success or < 0 on error
9509 int i40e_vsi_release(struct i40e_vsi
*vsi
)
9511 struct i40e_mac_filter
*f
, *ftmp
;
9512 struct i40e_veb
*veb
= NULL
;
9519 /* release of a VEB-owner or last VSI is not allowed */
9520 if (vsi
->flags
& I40E_VSI_FLAG_VEB_OWNER
) {
9521 dev_info(&pf
->pdev
->dev
, "VSI %d has existing VEB %d\n",
9522 vsi
->seid
, vsi
->uplink_seid
);
9525 if (vsi
== pf
->vsi
[pf
->lan_vsi
] &&
9526 !test_bit(__I40E_DOWN
, &pf
->state
)) {
9527 dev_info(&pf
->pdev
->dev
, "Can't remove PF VSI\n");
9531 uplink_seid
= vsi
->uplink_seid
;
9532 if (vsi
->type
!= I40E_VSI_SRIOV
) {
9533 if (vsi
->netdev_registered
) {
9534 vsi
->netdev_registered
= false;
9536 /* results in a call to i40e_close() */
9537 unregister_netdev(vsi
->netdev
);
9540 i40e_vsi_close(vsi
);
9542 i40e_vsi_disable_irq(vsi
);
9545 spin_lock_bh(&vsi
->mac_filter_list_lock
);
9546 list_for_each_entry_safe(f
, ftmp
, &vsi
->mac_filter_list
, list
)
9547 i40e_del_filter(vsi
, f
->macaddr
, f
->vlan
,
9548 f
->is_vf
, f
->is_netdev
);
9549 spin_unlock_bh(&vsi
->mac_filter_list_lock
);
9551 i40e_sync_vsi_filters(vsi
);
9553 i40e_vsi_delete(vsi
);
9554 i40e_vsi_free_q_vectors(vsi
);
9556 free_netdev(vsi
->netdev
);
9559 i40e_vsi_clear_rings(vsi
);
9560 i40e_vsi_clear(vsi
);
9562 /* If this was the last thing on the VEB, except for the
9563 * controlling VSI, remove the VEB, which puts the controlling
9564 * VSI onto the next level down in the switch.
9566 * Well, okay, there's one more exception here: don't remove
9567 * the orphan VEBs yet. We'll wait for an explicit remove request
9568 * from up the network stack.
9570 for (n
= 0, i
= 0; i
< pf
->num_alloc_vsi
; i
++) {
9572 pf
->vsi
[i
]->uplink_seid
== uplink_seid
&&
9573 (pf
->vsi
[i
]->flags
& I40E_VSI_FLAG_VEB_OWNER
) == 0) {
9574 n
++; /* count the VSIs */
9577 for (i
= 0; i
< I40E_MAX_VEB
; i
++) {
9580 if (pf
->veb
[i
]->uplink_seid
== uplink_seid
)
9581 n
++; /* count the VEBs */
9582 if (pf
->veb
[i
]->seid
== uplink_seid
)
9585 if (n
== 0 && veb
&& veb
->uplink_seid
!= 0)
9586 i40e_veb_release(veb
);
9592 * i40e_vsi_setup_vectors - Set up the q_vectors for the given VSI
9593 * @vsi: ptr to the VSI
9595 * This should only be called after i40e_vsi_mem_alloc() which allocates the
9596 * corresponding SW VSI structure and initializes num_queue_pairs for the
9597 * newly allocated VSI.
9599 * Returns 0 on success or negative on failure
9601 static int i40e_vsi_setup_vectors(struct i40e_vsi
*vsi
)
9604 struct i40e_pf
*pf
= vsi
->back
;
9606 if (vsi
->q_vectors
[0]) {
9607 dev_info(&pf
->pdev
->dev
, "VSI %d has existing q_vectors\n",
9612 if (vsi
->base_vector
) {
9613 dev_info(&pf
->pdev
->dev
, "VSI %d has non-zero base vector %d\n",
9614 vsi
->seid
, vsi
->base_vector
);
9618 ret
= i40e_vsi_alloc_q_vectors(vsi
);
9620 dev_info(&pf
->pdev
->dev
,
9621 "failed to allocate %d q_vector for VSI %d, ret=%d\n",
9622 vsi
->num_q_vectors
, vsi
->seid
, ret
);
9623 vsi
->num_q_vectors
= 0;
9624 goto vector_setup_out
;
9627 /* In Legacy mode, we do not have to get any other vector since we
9628 * piggyback on the misc/ICR0 for queue interrupts.
9630 if (!(pf
->flags
& I40E_FLAG_MSIX_ENABLED
))
9632 if (vsi
->num_q_vectors
)
9633 vsi
->base_vector
= i40e_get_lump(pf
, pf
->irq_pile
,
9634 vsi
->num_q_vectors
, vsi
->idx
);
9635 if (vsi
->base_vector
< 0) {
9636 dev_info(&pf
->pdev
->dev
,
9637 "failed to get tracking for %d vectors for VSI %d, err=%d\n",
9638 vsi
->num_q_vectors
, vsi
->seid
, vsi
->base_vector
);
9639 i40e_vsi_free_q_vectors(vsi
);
9641 goto vector_setup_out
;
9649 * i40e_vsi_reinit_setup - return and reallocate resources for a VSI
9650 * @vsi: pointer to the vsi.
9652 * This re-allocates a vsi's queue resources.
9654 * Returns pointer to the successfully allocated and configured VSI sw struct
9655 * on success, otherwise returns NULL on failure.
9657 static struct i40e_vsi
*i40e_vsi_reinit_setup(struct i40e_vsi
*vsi
)
9668 i40e_put_lump(pf
->qp_pile
, vsi
->base_queue
, vsi
->idx
);
9669 i40e_vsi_clear_rings(vsi
);
9671 i40e_vsi_free_arrays(vsi
, false);
9672 i40e_set_num_rings_in_vsi(vsi
);
9673 ret
= i40e_vsi_alloc_arrays(vsi
, false);
9677 ret
= i40e_get_lump(pf
, pf
->qp_pile
, vsi
->alloc_queue_pairs
, vsi
->idx
);
9679 dev_info(&pf
->pdev
->dev
,
9680 "failed to get tracking for %d queues for VSI %d err %d\n",
9681 vsi
->alloc_queue_pairs
, vsi
->seid
, ret
);
9684 vsi
->base_queue
= ret
;
9686 /* Update the FW view of the VSI. Force a reset of TC and queue
9687 * layout configurations.
9689 enabled_tc
= pf
->vsi
[pf
->lan_vsi
]->tc_config
.enabled_tc
;
9690 pf
->vsi
[pf
->lan_vsi
]->tc_config
.enabled_tc
= 0;
9691 pf
->vsi
[pf
->lan_vsi
]->seid
= pf
->main_vsi_seid
;
9692 i40e_vsi_config_tc(pf
->vsi
[pf
->lan_vsi
], enabled_tc
);
9694 /* assign it some queues */
9695 ret
= i40e_alloc_rings(vsi
);
9699 /* map all of the rings to the q_vectors */
9700 i40e_vsi_map_rings_to_vectors(vsi
);
9704 i40e_vsi_free_q_vectors(vsi
);
9705 if (vsi
->netdev_registered
) {
9706 vsi
->netdev_registered
= false;
9707 unregister_netdev(vsi
->netdev
);
9708 free_netdev(vsi
->netdev
);
9711 i40e_aq_delete_element(&pf
->hw
, vsi
->seid
, NULL
);
9713 i40e_vsi_clear(vsi
);
9718 * i40e_macaddr_init - explicitly write the mac address filters.
9720 * @vsi: pointer to the vsi.
9721 * @macaddr: the MAC address
9723 * This is needed when the macaddr has been obtained by other
9724 * means than the default, e.g., from Open Firmware or IDPROM.
9725 * Returns 0 on success, negative on failure
9727 static int i40e_macaddr_init(struct i40e_vsi
*vsi
, u8
*macaddr
)
9730 struct i40e_aqc_add_macvlan_element_data element
;
9732 ret
= i40e_aq_mac_address_write(&vsi
->back
->hw
,
9733 I40E_AQC_WRITE_TYPE_LAA_WOL
,
9736 dev_info(&vsi
->back
->pdev
->dev
,
9737 "Addr change for VSI failed: %d\n", ret
);
9738 return -EADDRNOTAVAIL
;
9741 memset(&element
, 0, sizeof(element
));
9742 ether_addr_copy(element
.mac_addr
, macaddr
);
9743 element
.flags
= cpu_to_le16(I40E_AQC_MACVLAN_ADD_PERFECT_MATCH
);
9744 ret
= i40e_aq_add_macvlan(&vsi
->back
->hw
, vsi
->seid
, &element
, 1, NULL
);
9746 dev_info(&vsi
->back
->pdev
->dev
,
9747 "add filter failed err %s aq_err %s\n",
9748 i40e_stat_str(&vsi
->back
->hw
, ret
),
9749 i40e_aq_str(&vsi
->back
->hw
,
9750 vsi
->back
->hw
.aq
.asq_last_status
));
9756 * i40e_vsi_setup - Set up a VSI by a given type
9757 * @pf: board private structure
9759 * @uplink_seid: the switch element to link to
9760 * @param1: usage depends upon VSI type. For VF types, indicates VF id
9762 * This allocates the sw VSI structure and its queue resources, then add a VSI
9763 * to the identified VEB.
9765 * Returns pointer to the successfully allocated and configure VSI sw struct on
9766 * success, otherwise returns NULL on failure.
9768 struct i40e_vsi
*i40e_vsi_setup(struct i40e_pf
*pf
, u8 type
,
9769 u16 uplink_seid
, u32 param1
)
9771 struct i40e_vsi
*vsi
= NULL
;
9772 struct i40e_veb
*veb
= NULL
;
9776 /* The requested uplink_seid must be either
9777 * - the PF's port seid
9778 * no VEB is needed because this is the PF
9779 * or this is a Flow Director special case VSI
9780 * - seid of an existing VEB
9781 * - seid of a VSI that owns an existing VEB
9782 * - seid of a VSI that doesn't own a VEB
9783 * a new VEB is created and the VSI becomes the owner
9784 * - seid of the PF VSI, which is what creates the first VEB
9785 * this is a special case of the previous
9787 * Find which uplink_seid we were given and create a new VEB if needed
9789 for (i
= 0; i
< I40E_MAX_VEB
; i
++) {
9790 if (pf
->veb
[i
] && pf
->veb
[i
]->seid
== uplink_seid
) {
9796 if (!veb
&& uplink_seid
!= pf
->mac_seid
) {
9798 for (i
= 0; i
< pf
->num_alloc_vsi
; i
++) {
9799 if (pf
->vsi
[i
] && pf
->vsi
[i
]->seid
== uplink_seid
) {
9805 dev_info(&pf
->pdev
->dev
, "no such uplink_seid %d\n",
9810 if (vsi
->uplink_seid
== pf
->mac_seid
)
9811 veb
= i40e_veb_setup(pf
, 0, pf
->mac_seid
, vsi
->seid
,
9812 vsi
->tc_config
.enabled_tc
);
9813 else if ((vsi
->flags
& I40E_VSI_FLAG_VEB_OWNER
) == 0)
9814 veb
= i40e_veb_setup(pf
, 0, vsi
->uplink_seid
, vsi
->seid
,
9815 vsi
->tc_config
.enabled_tc
);
9817 if (vsi
->seid
!= pf
->vsi
[pf
->lan_vsi
]->seid
) {
9818 dev_info(&vsi
->back
->pdev
->dev
,
9819 "New VSI creation error, uplink seid of LAN VSI expected.\n");
9822 /* We come up by default in VEPA mode if SRIOV is not
9823 * already enabled, in which case we can't force VEPA
9826 if (!(pf
->flags
& I40E_FLAG_VEB_MODE_ENABLED
)) {
9827 veb
->bridge_mode
= BRIDGE_MODE_VEPA
;
9828 pf
->flags
&= ~I40E_FLAG_VEB_MODE_ENABLED
;
9830 i40e_config_bridge_mode(veb
);
9832 for (i
= 0; i
< I40E_MAX_VEB
&& !veb
; i
++) {
9833 if (pf
->veb
[i
] && pf
->veb
[i
]->seid
== vsi
->uplink_seid
)
9837 dev_info(&pf
->pdev
->dev
, "couldn't add VEB\n");
9841 vsi
->flags
|= I40E_VSI_FLAG_VEB_OWNER
;
9842 uplink_seid
= veb
->seid
;
9845 /* get vsi sw struct */
9846 v_idx
= i40e_vsi_mem_alloc(pf
, type
);
9849 vsi
= pf
->vsi
[v_idx
];
9853 vsi
->veb_idx
= (veb
? veb
->idx
: I40E_NO_VEB
);
9855 if (type
== I40E_VSI_MAIN
)
9856 pf
->lan_vsi
= v_idx
;
9857 else if (type
== I40E_VSI_SRIOV
)
9858 vsi
->vf_id
= param1
;
9859 /* assign it some queues */
9860 ret
= i40e_get_lump(pf
, pf
->qp_pile
, vsi
->alloc_queue_pairs
,
9863 dev_info(&pf
->pdev
->dev
,
9864 "failed to get tracking for %d queues for VSI %d err=%d\n",
9865 vsi
->alloc_queue_pairs
, vsi
->seid
, ret
);
9868 vsi
->base_queue
= ret
;
9870 /* get a VSI from the hardware */
9871 vsi
->uplink_seid
= uplink_seid
;
9872 ret
= i40e_add_vsi(vsi
);
9876 switch (vsi
->type
) {
9877 /* setup the netdev if needed */
9879 /* Apply relevant filters if a platform-specific mac
9880 * address was selected.
9882 if (!!(pf
->flags
& I40E_FLAG_PF_MAC
)) {
9883 ret
= i40e_macaddr_init(vsi
, pf
->hw
.mac
.addr
);
9885 dev_warn(&pf
->pdev
->dev
,
9886 "could not set up macaddr; err %d\n",
9890 case I40E_VSI_VMDQ2
:
9892 ret
= i40e_config_netdev(vsi
);
9895 ret
= register_netdev(vsi
->netdev
);
9898 vsi
->netdev_registered
= true;
9899 netif_carrier_off(vsi
->netdev
);
9900 #ifdef CONFIG_I40E_DCB
9901 /* Setup DCB netlink interface */
9902 i40e_dcbnl_setup(vsi
);
9903 #endif /* CONFIG_I40E_DCB */
9907 /* set up vectors and rings if needed */
9908 ret
= i40e_vsi_setup_vectors(vsi
);
9912 ret
= i40e_alloc_rings(vsi
);
9916 /* map all of the rings to the q_vectors */
9917 i40e_vsi_map_rings_to_vectors(vsi
);
9919 i40e_vsi_reset_stats(vsi
);
9923 /* no netdev or rings for the other VSI types */
9927 if ((pf
->flags
& I40E_FLAG_RSS_AQ_CAPABLE
) &&
9928 (vsi
->type
== I40E_VSI_VMDQ2
)) {
9929 ret
= i40e_vsi_config_rss(vsi
);
9934 i40e_vsi_free_q_vectors(vsi
);
9936 if (vsi
->netdev_registered
) {
9937 vsi
->netdev_registered
= false;
9938 unregister_netdev(vsi
->netdev
);
9939 free_netdev(vsi
->netdev
);
9943 i40e_aq_delete_element(&pf
->hw
, vsi
->seid
, NULL
);
9945 i40e_vsi_clear(vsi
);
9951 * i40e_veb_get_bw_info - Query VEB BW information
9952 * @veb: the veb to query
9954 * Query the Tx scheduler BW configuration data for given VEB
9956 static int i40e_veb_get_bw_info(struct i40e_veb
*veb
)
9958 struct i40e_aqc_query_switching_comp_ets_config_resp ets_data
;
9959 struct i40e_aqc_query_switching_comp_bw_config_resp bw_data
;
9960 struct i40e_pf
*pf
= veb
->pf
;
9961 struct i40e_hw
*hw
= &pf
->hw
;
9966 ret
= i40e_aq_query_switch_comp_bw_config(hw
, veb
->seid
,
9969 dev_info(&pf
->pdev
->dev
,
9970 "query veb bw config failed, err %s aq_err %s\n",
9971 i40e_stat_str(&pf
->hw
, ret
),
9972 i40e_aq_str(&pf
->hw
, hw
->aq
.asq_last_status
));
9976 ret
= i40e_aq_query_switch_comp_ets_config(hw
, veb
->seid
,
9979 dev_info(&pf
->pdev
->dev
,
9980 "query veb bw ets config failed, err %s aq_err %s\n",
9981 i40e_stat_str(&pf
->hw
, ret
),
9982 i40e_aq_str(&pf
->hw
, hw
->aq
.asq_last_status
));
9986 veb
->bw_limit
= le16_to_cpu(ets_data
.port_bw_limit
);
9987 veb
->bw_max_quanta
= ets_data
.tc_bw_max
;
9988 veb
->is_abs_credits
= bw_data
.absolute_credits_enable
;
9989 veb
->enabled_tc
= ets_data
.tc_valid_bits
;
9990 tc_bw_max
= le16_to_cpu(bw_data
.tc_bw_max
[0]) |
9991 (le16_to_cpu(bw_data
.tc_bw_max
[1]) << 16);
9992 for (i
= 0; i
< I40E_MAX_TRAFFIC_CLASS
; i
++) {
9993 veb
->bw_tc_share_credits
[i
] = bw_data
.tc_bw_share_credits
[i
];
9994 veb
->bw_tc_limit_credits
[i
] =
9995 le16_to_cpu(bw_data
.tc_bw_limits
[i
]);
9996 veb
->bw_tc_max_quanta
[i
] = ((tc_bw_max
>> (i
*4)) & 0x7);
10004 * i40e_veb_mem_alloc - Allocates the next available struct veb in the PF
10005 * @pf: board private structure
10007 * On error: returns error code (negative)
10008 * On success: returns vsi index in PF (positive)
10010 static int i40e_veb_mem_alloc(struct i40e_pf
*pf
)
10013 struct i40e_veb
*veb
;
10016 /* Need to protect the allocation of switch elements at the PF level */
10017 mutex_lock(&pf
->switch_mutex
);
10019 /* VEB list may be fragmented if VEB creation/destruction has
10020 * been happening. We can afford to do a quick scan to look
10021 * for any free slots in the list.
10023 * find next empty veb slot, looping back around if necessary
10026 while ((i
< I40E_MAX_VEB
) && (pf
->veb
[i
] != NULL
))
10028 if (i
>= I40E_MAX_VEB
) {
10030 goto err_alloc_veb
; /* out of VEB slots! */
10033 veb
= kzalloc(sizeof(*veb
), GFP_KERNEL
);
10036 goto err_alloc_veb
;
10040 veb
->enabled_tc
= 1;
10045 mutex_unlock(&pf
->switch_mutex
);
10050 * i40e_switch_branch_release - Delete a branch of the switch tree
10051 * @branch: where to start deleting
10053 * This uses recursion to find the tips of the branch to be
10054 * removed, deleting until we get back to and can delete this VEB.
10056 static void i40e_switch_branch_release(struct i40e_veb
*branch
)
10058 struct i40e_pf
*pf
= branch
->pf
;
10059 u16 branch_seid
= branch
->seid
;
10060 u16 veb_idx
= branch
->idx
;
10063 /* release any VEBs on this VEB - RECURSION */
10064 for (i
= 0; i
< I40E_MAX_VEB
; i
++) {
10067 if (pf
->veb
[i
]->uplink_seid
== branch
->seid
)
10068 i40e_switch_branch_release(pf
->veb
[i
]);
10071 /* Release the VSIs on this VEB, but not the owner VSI.
10073 * NOTE: Removing the last VSI on a VEB has the SIDE EFFECT of removing
10074 * the VEB itself, so don't use (*branch) after this loop.
10076 for (i
= 0; i
< pf
->num_alloc_vsi
; i
++) {
10079 if (pf
->vsi
[i
]->uplink_seid
== branch_seid
&&
10080 (pf
->vsi
[i
]->flags
& I40E_VSI_FLAG_VEB_OWNER
) == 0) {
10081 i40e_vsi_release(pf
->vsi
[i
]);
10085 /* There's one corner case where the VEB might not have been
10086 * removed, so double check it here and remove it if needed.
10087 * This case happens if the veb was created from the debugfs
10088 * commands and no VSIs were added to it.
10090 if (pf
->veb
[veb_idx
])
10091 i40e_veb_release(pf
->veb
[veb_idx
]);
10095 * i40e_veb_clear - remove veb struct
10096 * @veb: the veb to remove
10098 static void i40e_veb_clear(struct i40e_veb
*veb
)
10104 struct i40e_pf
*pf
= veb
->pf
;
10106 mutex_lock(&pf
->switch_mutex
);
10107 if (pf
->veb
[veb
->idx
] == veb
)
10108 pf
->veb
[veb
->idx
] = NULL
;
10109 mutex_unlock(&pf
->switch_mutex
);
10116 * i40e_veb_release - Delete a VEB and free its resources
10117 * @veb: the VEB being removed
10119 void i40e_veb_release(struct i40e_veb
*veb
)
10121 struct i40e_vsi
*vsi
= NULL
;
10122 struct i40e_pf
*pf
;
10127 /* find the remaining VSI and check for extras */
10128 for (i
= 0; i
< pf
->num_alloc_vsi
; i
++) {
10129 if (pf
->vsi
[i
] && pf
->vsi
[i
]->uplink_seid
== veb
->seid
) {
10135 dev_info(&pf
->pdev
->dev
,
10136 "can't remove VEB %d with %d VSIs left\n",
10141 /* move the remaining VSI to uplink veb */
10142 vsi
->flags
&= ~I40E_VSI_FLAG_VEB_OWNER
;
10143 if (veb
->uplink_seid
) {
10144 vsi
->uplink_seid
= veb
->uplink_seid
;
10145 if (veb
->uplink_seid
== pf
->mac_seid
)
10146 vsi
->veb_idx
= I40E_NO_VEB
;
10148 vsi
->veb_idx
= veb
->veb_idx
;
10151 vsi
->uplink_seid
= pf
->vsi
[pf
->lan_vsi
]->uplink_seid
;
10152 vsi
->veb_idx
= pf
->vsi
[pf
->lan_vsi
]->veb_idx
;
10155 i40e_aq_delete_element(&pf
->hw
, veb
->seid
, NULL
);
10156 i40e_veb_clear(veb
);
10160 * i40e_add_veb - create the VEB in the switch
10161 * @veb: the VEB to be instantiated
10162 * @vsi: the controlling VSI
10164 static int i40e_add_veb(struct i40e_veb
*veb
, struct i40e_vsi
*vsi
)
10166 struct i40e_pf
*pf
= veb
->pf
;
10167 bool is_default
= veb
->pf
->cur_promisc
;
10168 bool enable_stats
= !!(pf
->flags
& I40E_FLAG_VEB_STATS_ENABLED
);
10171 /* get a VEB from the hardware */
10172 ret
= i40e_aq_add_veb(&pf
->hw
, veb
->uplink_seid
, vsi
->seid
,
10173 veb
->enabled_tc
, is_default
,
10174 &veb
->seid
, enable_stats
, NULL
);
10176 dev_info(&pf
->pdev
->dev
,
10177 "couldn't add VEB, err %s aq_err %s\n",
10178 i40e_stat_str(&pf
->hw
, ret
),
10179 i40e_aq_str(&pf
->hw
, pf
->hw
.aq
.asq_last_status
));
10183 /* get statistics counter */
10184 ret
= i40e_aq_get_veb_parameters(&pf
->hw
, veb
->seid
, NULL
, NULL
,
10185 &veb
->stats_idx
, NULL
, NULL
, NULL
);
10187 dev_info(&pf
->pdev
->dev
,
10188 "couldn't get VEB statistics idx, err %s aq_err %s\n",
10189 i40e_stat_str(&pf
->hw
, ret
),
10190 i40e_aq_str(&pf
->hw
, pf
->hw
.aq
.asq_last_status
));
10193 ret
= i40e_veb_get_bw_info(veb
);
10195 dev_info(&pf
->pdev
->dev
,
10196 "couldn't get VEB bw info, err %s aq_err %s\n",
10197 i40e_stat_str(&pf
->hw
, ret
),
10198 i40e_aq_str(&pf
->hw
, pf
->hw
.aq
.asq_last_status
));
10199 i40e_aq_delete_element(&pf
->hw
, veb
->seid
, NULL
);
10203 vsi
->uplink_seid
= veb
->seid
;
10204 vsi
->veb_idx
= veb
->idx
;
10205 vsi
->flags
|= I40E_VSI_FLAG_VEB_OWNER
;
10211 * i40e_veb_setup - Set up a VEB
10212 * @pf: board private structure
10213 * @flags: VEB setup flags
10214 * @uplink_seid: the switch element to link to
10215 * @vsi_seid: the initial VSI seid
10216 * @enabled_tc: Enabled TC bit-map
10218 * This allocates the sw VEB structure and links it into the switch
10219 * It is possible and legal for this to be a duplicate of an already
10220 * existing VEB. It is also possible for both uplink and vsi seids
10221 * to be zero, in order to create a floating VEB.
10223 * Returns pointer to the successfully allocated VEB sw struct on
10224 * success, otherwise returns NULL on failure.
10226 struct i40e_veb
*i40e_veb_setup(struct i40e_pf
*pf
, u16 flags
,
10227 u16 uplink_seid
, u16 vsi_seid
,
10230 struct i40e_veb
*veb
, *uplink_veb
= NULL
;
10231 int vsi_idx
, veb_idx
;
10234 /* if one seid is 0, the other must be 0 to create a floating relay */
10235 if ((uplink_seid
== 0 || vsi_seid
== 0) &&
10236 (uplink_seid
+ vsi_seid
!= 0)) {
10237 dev_info(&pf
->pdev
->dev
,
10238 "one, not both seid's are 0: uplink=%d vsi=%d\n",
10239 uplink_seid
, vsi_seid
);
10243 /* make sure there is such a vsi and uplink */
10244 for (vsi_idx
= 0; vsi_idx
< pf
->num_alloc_vsi
; vsi_idx
++)
10245 if (pf
->vsi
[vsi_idx
] && pf
->vsi
[vsi_idx
]->seid
== vsi_seid
)
10247 if (vsi_idx
>= pf
->num_alloc_vsi
&& vsi_seid
!= 0) {
10248 dev_info(&pf
->pdev
->dev
, "vsi seid %d not found\n",
10253 if (uplink_seid
&& uplink_seid
!= pf
->mac_seid
) {
10254 for (veb_idx
= 0; veb_idx
< I40E_MAX_VEB
; veb_idx
++) {
10255 if (pf
->veb
[veb_idx
] &&
10256 pf
->veb
[veb_idx
]->seid
== uplink_seid
) {
10257 uplink_veb
= pf
->veb
[veb_idx
];
10262 dev_info(&pf
->pdev
->dev
,
10263 "uplink seid %d not found\n", uplink_seid
);
10268 /* get veb sw struct */
10269 veb_idx
= i40e_veb_mem_alloc(pf
);
10272 veb
= pf
->veb
[veb_idx
];
10273 veb
->flags
= flags
;
10274 veb
->uplink_seid
= uplink_seid
;
10275 veb
->veb_idx
= (uplink_veb
? uplink_veb
->idx
: I40E_NO_VEB
);
10276 veb
->enabled_tc
= (enabled_tc
? enabled_tc
: 0x1);
10278 /* create the VEB in the switch */
10279 ret
= i40e_add_veb(veb
, pf
->vsi
[vsi_idx
]);
10282 if (vsi_idx
== pf
->lan_vsi
)
10283 pf
->lan_veb
= veb
->idx
;
10288 i40e_veb_clear(veb
);
10294 * i40e_setup_pf_switch_element - set PF vars based on switch type
10295 * @pf: board private structure
10296 * @ele: element we are building info from
10297 * @num_reported: total number of elements
10298 * @printconfig: should we print the contents
10300 * helper function to assist in extracting a few useful SEID values.
10302 static void i40e_setup_pf_switch_element(struct i40e_pf
*pf
,
10303 struct i40e_aqc_switch_config_element_resp
*ele
,
10304 u16 num_reported
, bool printconfig
)
10306 u16 downlink_seid
= le16_to_cpu(ele
->downlink_seid
);
10307 u16 uplink_seid
= le16_to_cpu(ele
->uplink_seid
);
10308 u8 element_type
= ele
->element_type
;
10309 u16 seid
= le16_to_cpu(ele
->seid
);
10312 dev_info(&pf
->pdev
->dev
,
10313 "type=%d seid=%d uplink=%d downlink=%d\n",
10314 element_type
, seid
, uplink_seid
, downlink_seid
);
10316 switch (element_type
) {
10317 case I40E_SWITCH_ELEMENT_TYPE_MAC
:
10318 pf
->mac_seid
= seid
;
10320 case I40E_SWITCH_ELEMENT_TYPE_VEB
:
10322 if (uplink_seid
!= pf
->mac_seid
)
10324 if (pf
->lan_veb
== I40E_NO_VEB
) {
10327 /* find existing or else empty VEB */
10328 for (v
= 0; v
< I40E_MAX_VEB
; v
++) {
10329 if (pf
->veb
[v
] && (pf
->veb
[v
]->seid
== seid
)) {
10334 if (pf
->lan_veb
== I40E_NO_VEB
) {
10335 v
= i40e_veb_mem_alloc(pf
);
10342 pf
->veb
[pf
->lan_veb
]->seid
= seid
;
10343 pf
->veb
[pf
->lan_veb
]->uplink_seid
= pf
->mac_seid
;
10344 pf
->veb
[pf
->lan_veb
]->pf
= pf
;
10345 pf
->veb
[pf
->lan_veb
]->veb_idx
= I40E_NO_VEB
;
10347 case I40E_SWITCH_ELEMENT_TYPE_VSI
:
10348 if (num_reported
!= 1)
10350 /* This is immediately after a reset so we can assume this is
10353 pf
->mac_seid
= uplink_seid
;
10354 pf
->pf_seid
= downlink_seid
;
10355 pf
->main_vsi_seid
= seid
;
10357 dev_info(&pf
->pdev
->dev
,
10358 "pf_seid=%d main_vsi_seid=%d\n",
10359 pf
->pf_seid
, pf
->main_vsi_seid
);
10361 case I40E_SWITCH_ELEMENT_TYPE_PF
:
10362 case I40E_SWITCH_ELEMENT_TYPE_VF
:
10363 case I40E_SWITCH_ELEMENT_TYPE_EMP
:
10364 case I40E_SWITCH_ELEMENT_TYPE_BMC
:
10365 case I40E_SWITCH_ELEMENT_TYPE_PE
:
10366 case I40E_SWITCH_ELEMENT_TYPE_PA
:
10367 /* ignore these for now */
10370 dev_info(&pf
->pdev
->dev
, "unknown element type=%d seid=%d\n",
10371 element_type
, seid
);
10377 * i40e_fetch_switch_configuration - Get switch config from firmware
10378 * @pf: board private structure
10379 * @printconfig: should we print the contents
10381 * Get the current switch configuration from the device and
10382 * extract a few useful SEID values.
10384 int i40e_fetch_switch_configuration(struct i40e_pf
*pf
, bool printconfig
)
10386 struct i40e_aqc_get_switch_config_resp
*sw_config
;
10392 aq_buf
= kzalloc(I40E_AQ_LARGE_BUF
, GFP_KERNEL
);
10396 sw_config
= (struct i40e_aqc_get_switch_config_resp
*)aq_buf
;
10398 u16 num_reported
, num_total
;
10400 ret
= i40e_aq_get_switch_config(&pf
->hw
, sw_config
,
10404 dev_info(&pf
->pdev
->dev
,
10405 "get switch config failed err %s aq_err %s\n",
10406 i40e_stat_str(&pf
->hw
, ret
),
10407 i40e_aq_str(&pf
->hw
,
10408 pf
->hw
.aq
.asq_last_status
));
10413 num_reported
= le16_to_cpu(sw_config
->header
.num_reported
);
10414 num_total
= le16_to_cpu(sw_config
->header
.num_total
);
10417 dev_info(&pf
->pdev
->dev
,
10418 "header: %d reported %d total\n",
10419 num_reported
, num_total
);
10421 for (i
= 0; i
< num_reported
; i
++) {
10422 struct i40e_aqc_switch_config_element_resp
*ele
=
10423 &sw_config
->element
[i
];
10425 i40e_setup_pf_switch_element(pf
, ele
, num_reported
,
10428 } while (next_seid
!= 0);
10435 * i40e_setup_pf_switch - Setup the HW switch on startup or after reset
10436 * @pf: board private structure
10437 * @reinit: if the Main VSI needs to re-initialized.
10439 * Returns 0 on success, negative value on failure
10441 static int i40e_setup_pf_switch(struct i40e_pf
*pf
, bool reinit
)
10445 /* find out what's out there already */
10446 ret
= i40e_fetch_switch_configuration(pf
, false);
10448 dev_info(&pf
->pdev
->dev
,
10449 "couldn't fetch switch config, err %s aq_err %s\n",
10450 i40e_stat_str(&pf
->hw
, ret
),
10451 i40e_aq_str(&pf
->hw
, pf
->hw
.aq
.asq_last_status
));
10454 i40e_pf_reset_stats(pf
);
10456 /* first time setup */
10457 if (pf
->lan_vsi
== I40E_NO_VSI
|| reinit
) {
10458 struct i40e_vsi
*vsi
= NULL
;
10461 /* Set up the PF VSI associated with the PF's main VSI
10462 * that is already in the HW switch
10464 if (pf
->lan_veb
!= I40E_NO_VEB
&& pf
->veb
[pf
->lan_veb
])
10465 uplink_seid
= pf
->veb
[pf
->lan_veb
]->seid
;
10467 uplink_seid
= pf
->mac_seid
;
10468 if (pf
->lan_vsi
== I40E_NO_VSI
)
10469 vsi
= i40e_vsi_setup(pf
, I40E_VSI_MAIN
, uplink_seid
, 0);
10471 vsi
= i40e_vsi_reinit_setup(pf
->vsi
[pf
->lan_vsi
]);
10473 dev_info(&pf
->pdev
->dev
, "setup of MAIN VSI failed\n");
10474 i40e_fdir_teardown(pf
);
10478 /* force a reset of TC and queue layout configurations */
10479 u8 enabled_tc
= pf
->vsi
[pf
->lan_vsi
]->tc_config
.enabled_tc
;
10481 pf
->vsi
[pf
->lan_vsi
]->tc_config
.enabled_tc
= 0;
10482 pf
->vsi
[pf
->lan_vsi
]->seid
= pf
->main_vsi_seid
;
10483 i40e_vsi_config_tc(pf
->vsi
[pf
->lan_vsi
], enabled_tc
);
10485 i40e_vlan_stripping_disable(pf
->vsi
[pf
->lan_vsi
]);
10487 i40e_fdir_sb_setup(pf
);
10489 /* Setup static PF queue filter control settings */
10490 ret
= i40e_setup_pf_filter_control(pf
);
10492 dev_info(&pf
->pdev
->dev
, "setup_pf_filter_control failed: %d\n",
10494 /* Failure here should not stop continuing other steps */
10497 /* enable RSS in the HW, even for only one queue, as the stack can use
10500 if ((pf
->flags
& I40E_FLAG_RSS_ENABLED
))
10501 i40e_pf_config_rss(pf
);
10503 /* fill in link information and enable LSE reporting */
10504 i40e_update_link_info(&pf
->hw
);
10505 i40e_link_event(pf
);
10507 /* Initialize user-specific link properties */
10508 pf
->fc_autoneg_status
= ((pf
->hw
.phy
.link_info
.an_info
&
10509 I40E_AQ_AN_COMPLETED
) ? true : false);
10517 * i40e_determine_queue_usage - Work out queue distribution
10518 * @pf: board private structure
10520 static void i40e_determine_queue_usage(struct i40e_pf
*pf
)
10524 pf
->num_lan_qps
= 0;
10526 pf
->num_fcoe_qps
= 0;
10529 /* Find the max queues to be put into basic use. We'll always be
10530 * using TC0, whether or not DCB is running, and TC0 will get the
10533 queues_left
= pf
->hw
.func_caps
.num_tx_qp
;
10535 if ((queues_left
== 1) ||
10536 !(pf
->flags
& I40E_FLAG_MSIX_ENABLED
)) {
10537 /* one qp for PF, no queues for anything else */
10539 pf
->alloc_rss_size
= pf
->num_lan_qps
= 1;
10541 /* make sure all the fancies are disabled */
10542 pf
->flags
&= ~(I40E_FLAG_RSS_ENABLED
|
10543 I40E_FLAG_IWARP_ENABLED
|
10545 I40E_FLAG_FCOE_ENABLED
|
10547 I40E_FLAG_FD_SB_ENABLED
|
10548 I40E_FLAG_FD_ATR_ENABLED
|
10549 I40E_FLAG_DCB_CAPABLE
|
10550 I40E_FLAG_SRIOV_ENABLED
|
10551 I40E_FLAG_VMDQ_ENABLED
);
10552 } else if (!(pf
->flags
& (I40E_FLAG_RSS_ENABLED
|
10553 I40E_FLAG_FD_SB_ENABLED
|
10554 I40E_FLAG_FD_ATR_ENABLED
|
10555 I40E_FLAG_DCB_CAPABLE
))) {
10556 /* one qp for PF */
10557 pf
->alloc_rss_size
= pf
->num_lan_qps
= 1;
10558 queues_left
-= pf
->num_lan_qps
;
10560 pf
->flags
&= ~(I40E_FLAG_RSS_ENABLED
|
10561 I40E_FLAG_IWARP_ENABLED
|
10563 I40E_FLAG_FCOE_ENABLED
|
10565 I40E_FLAG_FD_SB_ENABLED
|
10566 I40E_FLAG_FD_ATR_ENABLED
|
10567 I40E_FLAG_DCB_ENABLED
|
10568 I40E_FLAG_VMDQ_ENABLED
);
10570 /* Not enough queues for all TCs */
10571 if ((pf
->flags
& I40E_FLAG_DCB_CAPABLE
) &&
10572 (queues_left
< I40E_MAX_TRAFFIC_CLASS
)) {
10573 pf
->flags
&= ~I40E_FLAG_DCB_CAPABLE
;
10574 dev_info(&pf
->pdev
->dev
, "not enough queues for DCB. DCB is disabled.\n");
10576 pf
->num_lan_qps
= max_t(int, pf
->rss_size_max
,
10577 num_online_cpus());
10578 pf
->num_lan_qps
= min_t(int, pf
->num_lan_qps
,
10579 pf
->hw
.func_caps
.num_tx_qp
);
10581 queues_left
-= pf
->num_lan_qps
;
10585 if (pf
->flags
& I40E_FLAG_FCOE_ENABLED
) {
10586 if (I40E_DEFAULT_FCOE
<= queues_left
) {
10587 pf
->num_fcoe_qps
= I40E_DEFAULT_FCOE
;
10588 } else if (I40E_MINIMUM_FCOE
<= queues_left
) {
10589 pf
->num_fcoe_qps
= I40E_MINIMUM_FCOE
;
10591 pf
->num_fcoe_qps
= 0;
10592 pf
->flags
&= ~I40E_FLAG_FCOE_ENABLED
;
10593 dev_info(&pf
->pdev
->dev
, "not enough queues for FCoE. FCoE feature will be disabled\n");
10596 queues_left
-= pf
->num_fcoe_qps
;
10600 if (pf
->flags
& I40E_FLAG_FD_SB_ENABLED
) {
10601 if (queues_left
> 1) {
10602 queues_left
-= 1; /* save 1 queue for FD */
10604 pf
->flags
&= ~I40E_FLAG_FD_SB_ENABLED
;
10605 dev_info(&pf
->pdev
->dev
, "not enough queues for Flow Director. Flow Director feature is disabled\n");
10609 if ((pf
->flags
& I40E_FLAG_SRIOV_ENABLED
) &&
10610 pf
->num_vf_qps
&& pf
->num_req_vfs
&& queues_left
) {
10611 pf
->num_req_vfs
= min_t(int, pf
->num_req_vfs
,
10612 (queues_left
/ pf
->num_vf_qps
));
10613 queues_left
-= (pf
->num_req_vfs
* pf
->num_vf_qps
);
10616 if ((pf
->flags
& I40E_FLAG_VMDQ_ENABLED
) &&
10617 pf
->num_vmdq_vsis
&& pf
->num_vmdq_qps
&& queues_left
) {
10618 pf
->num_vmdq_vsis
= min_t(int, pf
->num_vmdq_vsis
,
10619 (queues_left
/ pf
->num_vmdq_qps
));
10620 queues_left
-= (pf
->num_vmdq_vsis
* pf
->num_vmdq_qps
);
10623 pf
->queues_left
= queues_left
;
10624 dev_dbg(&pf
->pdev
->dev
,
10625 "qs_avail=%d FD SB=%d lan_qs=%d lan_tc0=%d vf=%d*%d vmdq=%d*%d, remaining=%d\n",
10626 pf
->hw
.func_caps
.num_tx_qp
,
10627 !!(pf
->flags
& I40E_FLAG_FD_SB_ENABLED
),
10628 pf
->num_lan_qps
, pf
->alloc_rss_size
, pf
->num_req_vfs
,
10629 pf
->num_vf_qps
, pf
->num_vmdq_vsis
, pf
->num_vmdq_qps
,
10632 dev_dbg(&pf
->pdev
->dev
, "fcoe queues = %d\n", pf
->num_fcoe_qps
);
10637 * i40e_setup_pf_filter_control - Setup PF static filter control
10638 * @pf: PF to be setup
10640 * i40e_setup_pf_filter_control sets up a PF's initial filter control
10641 * settings. If PE/FCoE are enabled then it will also set the per PF
10642 * based filter sizes required for them. It also enables Flow director,
10643 * ethertype and macvlan type filter settings for the pf.
10645 * Returns 0 on success, negative on failure
10647 static int i40e_setup_pf_filter_control(struct i40e_pf
*pf
)
10649 struct i40e_filter_control_settings
*settings
= &pf
->filter_settings
;
10651 settings
->hash_lut_size
= I40E_HASH_LUT_SIZE_128
;
10653 /* Flow Director is enabled */
10654 if (pf
->flags
& (I40E_FLAG_FD_SB_ENABLED
| I40E_FLAG_FD_ATR_ENABLED
))
10655 settings
->enable_fdir
= true;
10657 /* Ethtype and MACVLAN filters enabled for PF */
10658 settings
->enable_ethtype
= true;
10659 settings
->enable_macvlan
= true;
10661 if (i40e_set_filter_control(&pf
->hw
, settings
))
10667 #define INFO_STRING_LEN 255
10668 #define REMAIN(__x) (INFO_STRING_LEN - (__x))
10669 static void i40e_print_features(struct i40e_pf
*pf
)
10671 struct i40e_hw
*hw
= &pf
->hw
;
10675 buf
= kmalloc(INFO_STRING_LEN
, GFP_KERNEL
);
10679 i
= snprintf(buf
, INFO_STRING_LEN
, "Features: PF-id[%d]", hw
->pf_id
);
10680 #ifdef CONFIG_PCI_IOV
10681 i
+= snprintf(&buf
[i
], REMAIN(i
), " VFs: %d", pf
->num_req_vfs
);
10683 i
+= snprintf(&buf
[i
], REMAIN(i
), " VSIs: %d QP: %d RX: %s",
10684 pf
->hw
.func_caps
.num_vsis
,
10685 pf
->vsi
[pf
->lan_vsi
]->num_queue_pairs
,
10686 pf
->flags
& I40E_FLAG_RX_PS_ENABLED
? "PS" : "1BUF");
10688 if (pf
->flags
& I40E_FLAG_RSS_ENABLED
)
10689 i
+= snprintf(&buf
[i
], REMAIN(i
), " RSS");
10690 if (pf
->flags
& I40E_FLAG_FD_ATR_ENABLED
)
10691 i
+= snprintf(&buf
[i
], REMAIN(i
), " FD_ATR");
10692 if (pf
->flags
& I40E_FLAG_FD_SB_ENABLED
) {
10693 i
+= snprintf(&buf
[i
], REMAIN(i
), " FD_SB");
10694 i
+= snprintf(&buf
[i
], REMAIN(i
), " NTUPLE");
10696 if (pf
->flags
& I40E_FLAG_DCB_CAPABLE
)
10697 i
+= snprintf(&buf
[i
], REMAIN(i
), " DCB");
10698 #if IS_ENABLED(CONFIG_VXLAN)
10699 i
+= snprintf(&buf
[i
], REMAIN(i
), " VxLAN");
10701 #if IS_ENABLED(CONFIG_GENEVE)
10702 i
+= snprintf(&buf
[i
], REMAIN(i
), " Geneve");
10704 if (pf
->flags
& I40E_FLAG_PTP
)
10705 i
+= snprintf(&buf
[i
], REMAIN(i
), " PTP");
10707 if (pf
->flags
& I40E_FLAG_FCOE_ENABLED
)
10708 i
+= snprintf(&buf
[i
], REMAIN(i
), " FCOE");
10710 if (pf
->flags
& I40E_FLAG_VEB_MODE_ENABLED
)
10711 i
+= snprintf(&buf
[i
], REMAIN(i
), " VEB");
10713 i
+= snprintf(&buf
[i
], REMAIN(i
), " VEPA");
10715 dev_info(&pf
->pdev
->dev
, "%s\n", buf
);
10717 WARN_ON(i
> INFO_STRING_LEN
);
10721 * i40e_get_platform_mac_addr - get platform-specific MAC address
10723 * @pdev: PCI device information struct
10724 * @pf: board private structure
10726 * Look up the MAC address in Open Firmware on systems that support it,
10727 * and use IDPROM on SPARC if no OF address is found. On return, the
10728 * I40E_FLAG_PF_MAC will be wset in pf->flags if a platform-specific value
10729 * has been selected.
10731 static void i40e_get_platform_mac_addr(struct pci_dev
*pdev
, struct i40e_pf
*pf
)
10733 pf
->flags
&= ~I40E_FLAG_PF_MAC
;
10734 if (!eth_platform_get_mac_address(&pdev
->dev
, pf
->hw
.mac
.addr
))
10735 pf
->flags
|= I40E_FLAG_PF_MAC
;
10739 * i40e_probe - Device initialization routine
10740 * @pdev: PCI device information struct
10741 * @ent: entry in i40e_pci_tbl
10743 * i40e_probe initializes a PF identified by a pci_dev structure.
10744 * The OS initialization, configuring of the PF private structure,
10745 * and a hardware reset occur.
10747 * Returns 0 on success, negative on failure
10749 static int i40e_probe(struct pci_dev
*pdev
, const struct pci_device_id
*ent
)
10751 struct i40e_aq_get_phy_abilities_resp abilities
;
10752 struct i40e_pf
*pf
;
10753 struct i40e_hw
*hw
;
10754 static u16 pfs_found
;
10762 err
= pci_enable_device_mem(pdev
);
10766 /* set up for high or low dma */
10767 err
= dma_set_mask_and_coherent(&pdev
->dev
, DMA_BIT_MASK(64));
10769 err
= dma_set_mask_and_coherent(&pdev
->dev
, DMA_BIT_MASK(32));
10771 dev_err(&pdev
->dev
,
10772 "DMA configuration failed: 0x%x\n", err
);
10777 /* set up pci connections */
10778 err
= pci_request_selected_regions(pdev
, pci_select_bars(pdev
,
10779 IORESOURCE_MEM
), i40e_driver_name
);
10781 dev_info(&pdev
->dev
,
10782 "pci_request_selected_regions failed %d\n", err
);
10786 pci_enable_pcie_error_reporting(pdev
);
10787 pci_set_master(pdev
);
10789 /* Now that we have a PCI connection, we need to do the
10790 * low level device setup. This is primarily setting up
10791 * the Admin Queue structures and then querying for the
10792 * device's current profile information.
10794 pf
= kzalloc(sizeof(*pf
), GFP_KERNEL
);
10801 set_bit(__I40E_DOWN
, &pf
->state
);
10806 pf
->ioremap_len
= min_t(int, pci_resource_len(pdev
, 0),
10807 I40E_MAX_CSR_SPACE
);
10809 hw
->hw_addr
= ioremap(pci_resource_start(pdev
, 0), pf
->ioremap_len
);
10810 if (!hw
->hw_addr
) {
10812 dev_info(&pdev
->dev
, "ioremap(0x%04x, 0x%04x) failed: 0x%x\n",
10813 (unsigned int)pci_resource_start(pdev
, 0),
10814 pf
->ioremap_len
, err
);
10817 hw
->vendor_id
= pdev
->vendor
;
10818 hw
->device_id
= pdev
->device
;
10819 pci_read_config_byte(pdev
, PCI_REVISION_ID
, &hw
->revision_id
);
10820 hw
->subsystem_vendor_id
= pdev
->subsystem_vendor
;
10821 hw
->subsystem_device_id
= pdev
->subsystem_device
;
10822 hw
->bus
.device
= PCI_SLOT(pdev
->devfn
);
10823 hw
->bus
.func
= PCI_FUNC(pdev
->devfn
);
10824 pf
->instance
= pfs_found
;
10826 /* set up the locks for the AQ, do this only once in probe
10827 * and destroy them only once in remove
10829 mutex_init(&hw
->aq
.asq_mutex
);
10830 mutex_init(&hw
->aq
.arq_mutex
);
10833 pf
->msg_enable
= pf
->hw
.debug_mask
;
10834 pf
->msg_enable
= debug
;
10837 /* do a special CORER for clearing PXE mode once at init */
10838 if (hw
->revision_id
== 0 &&
10839 (rd32(hw
, I40E_GLLAN_RCTL_0
) & I40E_GLLAN_RCTL_0_PXE_MODE_MASK
)) {
10840 wr32(hw
, I40E_GLGEN_RTRIG
, I40E_GLGEN_RTRIG_CORER_MASK
);
10845 i40e_clear_pxe_mode(hw
);
10848 /* Reset here to make sure all is clean and to define PF 'n' */
10850 err
= i40e_pf_reset(hw
);
10852 dev_info(&pdev
->dev
, "Initial pf_reset failed: %d\n", err
);
10857 hw
->aq
.num_arq_entries
= I40E_AQ_LEN
;
10858 hw
->aq
.num_asq_entries
= I40E_AQ_LEN
;
10859 hw
->aq
.arq_buf_size
= I40E_MAX_AQ_BUF_SIZE
;
10860 hw
->aq
.asq_buf_size
= I40E_MAX_AQ_BUF_SIZE
;
10861 pf
->adminq_work_limit
= I40E_AQ_WORK_LIMIT
;
10863 snprintf(pf
->int_name
, sizeof(pf
->int_name
) - 1,
10865 dev_driver_string(&pf
->pdev
->dev
), dev_name(&pdev
->dev
));
10867 err
= i40e_init_shared_code(hw
);
10869 dev_warn(&pdev
->dev
, "unidentified MAC or BLANK NVM: %d\n",
10874 /* set up a default setting for link flow control */
10875 pf
->hw
.fc
.requested_mode
= I40E_FC_NONE
;
10877 err
= i40e_init_adminq(hw
);
10879 if (err
== I40E_ERR_FIRMWARE_API_VERSION
)
10880 dev_info(&pdev
->dev
,
10881 "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");
10883 dev_info(&pdev
->dev
,
10884 "The driver for the device stopped because the device firmware failed to init. Try updating your NVM image.\n");
10889 /* provide nvm, fw, api versions */
10890 dev_info(&pdev
->dev
, "fw %d.%d.%05d api %d.%d nvm %s\n",
10891 hw
->aq
.fw_maj_ver
, hw
->aq
.fw_min_ver
, hw
->aq
.fw_build
,
10892 hw
->aq
.api_maj_ver
, hw
->aq
.api_min_ver
,
10893 i40e_nvm_version_str(hw
));
10895 if (hw
->aq
.api_maj_ver
== I40E_FW_API_VERSION_MAJOR
&&
10896 hw
->aq
.api_min_ver
> I40E_FW_API_VERSION_MINOR
)
10897 dev_info(&pdev
->dev
,
10898 "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");
10899 else if (hw
->aq
.api_maj_ver
< I40E_FW_API_VERSION_MAJOR
||
10900 hw
->aq
.api_min_ver
< (I40E_FW_API_VERSION_MINOR
- 1))
10901 dev_info(&pdev
->dev
,
10902 "The driver for the device detected an older version of the NVM image than expected. Please update the NVM image.\n");
10904 i40e_verify_eeprom(pf
);
10906 /* Rev 0 hardware was never productized */
10907 if (hw
->revision_id
< 1)
10908 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");
10910 i40e_clear_pxe_mode(hw
);
10911 err
= i40e_get_capabilities(pf
);
10913 goto err_adminq_setup
;
10915 err
= i40e_sw_init(pf
);
10917 dev_info(&pdev
->dev
, "sw_init failed: %d\n", err
);
10921 err
= i40e_init_lan_hmc(hw
, hw
->func_caps
.num_tx_qp
,
10922 hw
->func_caps
.num_rx_qp
,
10923 pf
->fcoe_hmc_cntx_num
, pf
->fcoe_hmc_filt_num
);
10925 dev_info(&pdev
->dev
, "init_lan_hmc failed: %d\n", err
);
10926 goto err_init_lan_hmc
;
10929 err
= i40e_configure_lan_hmc(hw
, I40E_HMC_MODEL_DIRECT_ONLY
);
10931 dev_info(&pdev
->dev
, "configure_lan_hmc failed: %d\n", err
);
10933 goto err_configure_lan_hmc
;
10936 /* Disable LLDP for NICs that have firmware versions lower than v4.3.
10937 * Ignore error return codes because if it was already disabled via
10938 * hardware settings this will fail
10940 if (pf
->flags
& I40E_FLAG_STOP_FW_LLDP
) {
10941 dev_info(&pdev
->dev
, "Stopping firmware LLDP agent.\n");
10942 i40e_aq_stop_lldp(hw
, true, NULL
);
10945 i40e_get_mac_addr(hw
, hw
->mac
.addr
);
10946 /* allow a platform config to override the HW addr */
10947 i40e_get_platform_mac_addr(pdev
, pf
);
10948 if (!is_valid_ether_addr(hw
->mac
.addr
)) {
10949 dev_info(&pdev
->dev
, "invalid MAC address %pM\n", hw
->mac
.addr
);
10953 dev_info(&pdev
->dev
, "MAC address: %pM\n", hw
->mac
.addr
);
10954 ether_addr_copy(hw
->mac
.perm_addr
, hw
->mac
.addr
);
10955 i40e_get_port_mac_addr(hw
, hw
->mac
.port_addr
);
10956 if (is_valid_ether_addr(hw
->mac
.port_addr
))
10957 pf
->flags
|= I40E_FLAG_PORT_ID_VALID
;
10959 err
= i40e_get_san_mac_addr(hw
, hw
->mac
.san_addr
);
10961 dev_info(&pdev
->dev
,
10962 "(non-fatal) SAN MAC retrieval failed: %d\n", err
);
10963 if (!is_valid_ether_addr(hw
->mac
.san_addr
)) {
10964 dev_warn(&pdev
->dev
, "invalid SAN MAC address %pM, falling back to LAN MAC\n",
10966 ether_addr_copy(hw
->mac
.san_addr
, hw
->mac
.addr
);
10968 dev_info(&pf
->pdev
->dev
, "SAN MAC: %pM\n", hw
->mac
.san_addr
);
10969 #endif /* I40E_FCOE */
10971 pci_set_drvdata(pdev
, pf
);
10972 pci_save_state(pdev
);
10973 #ifdef CONFIG_I40E_DCB
10974 err
= i40e_init_pf_dcb(pf
);
10976 dev_info(&pdev
->dev
, "DCB init failed %d, disabled\n", err
);
10977 pf
->flags
&= ~I40E_FLAG_DCB_CAPABLE
;
10978 /* Continue without DCB enabled */
10980 #endif /* CONFIG_I40E_DCB */
10982 /* set up periodic task facility */
10983 setup_timer(&pf
->service_timer
, i40e_service_timer
, (unsigned long)pf
);
10984 pf
->service_timer_period
= HZ
;
10986 INIT_WORK(&pf
->service_task
, i40e_service_task
);
10987 clear_bit(__I40E_SERVICE_SCHED
, &pf
->state
);
10988 pf
->flags
|= I40E_FLAG_NEED_LINK_UPDATE
;
10990 /* NVM bit on means WoL disabled for the port */
10991 i40e_read_nvm_word(hw
, I40E_SR_NVM_WAKE_ON_LAN
, &wol_nvm_bits
);
10992 if (BIT (hw
->port
) & wol_nvm_bits
|| hw
->partition_id
!= 1)
10993 pf
->wol_en
= false;
10996 device_set_wakeup_enable(&pf
->pdev
->dev
, pf
->wol_en
);
10998 /* set up the main switch operations */
10999 i40e_determine_queue_usage(pf
);
11000 err
= i40e_init_interrupt_scheme(pf
);
11002 goto err_switch_setup
;
11004 /* The number of VSIs reported by the FW is the minimum guaranteed
11005 * to us; HW supports far more and we share the remaining pool with
11006 * the other PFs. We allocate space for more than the guarantee with
11007 * the understanding that we might not get them all later.
11009 if (pf
->hw
.func_caps
.num_vsis
< I40E_MIN_VSI_ALLOC
)
11010 pf
->num_alloc_vsi
= I40E_MIN_VSI_ALLOC
;
11012 pf
->num_alloc_vsi
= pf
->hw
.func_caps
.num_vsis
;
11014 /* Set up the *vsi struct and our local tracking of the MAIN PF vsi. */
11015 pf
->vsi
= kcalloc(pf
->num_alloc_vsi
, sizeof(struct i40e_vsi
*),
11019 goto err_switch_setup
;
11022 #ifdef CONFIG_PCI_IOV
11023 /* prep for VF support */
11024 if ((pf
->flags
& I40E_FLAG_SRIOV_ENABLED
) &&
11025 (pf
->flags
& I40E_FLAG_MSIX_ENABLED
) &&
11026 !test_bit(__I40E_BAD_EEPROM
, &pf
->state
)) {
11027 if (pci_num_vf(pdev
))
11028 pf
->flags
|= I40E_FLAG_VEB_MODE_ENABLED
;
11031 err
= i40e_setup_pf_switch(pf
, false);
11033 dev_info(&pdev
->dev
, "setup_pf_switch failed: %d\n", err
);
11037 /* Make sure flow control is set according to current settings */
11038 err
= i40e_set_fc(hw
, &set_fc_aq_fail
, true);
11039 if (set_fc_aq_fail
& I40E_SET_FC_AQ_FAIL_GET
)
11040 dev_dbg(&pf
->pdev
->dev
,
11041 "Set fc with err %s aq_err %s on get_phy_cap\n",
11042 i40e_stat_str(hw
, err
),
11043 i40e_aq_str(hw
, hw
->aq
.asq_last_status
));
11044 if (set_fc_aq_fail
& I40E_SET_FC_AQ_FAIL_SET
)
11045 dev_dbg(&pf
->pdev
->dev
,
11046 "Set fc with err %s aq_err %s on set_phy_config\n",
11047 i40e_stat_str(hw
, err
),
11048 i40e_aq_str(hw
, hw
->aq
.asq_last_status
));
11049 if (set_fc_aq_fail
& I40E_SET_FC_AQ_FAIL_UPDATE
)
11050 dev_dbg(&pf
->pdev
->dev
,
11051 "Set fc with err %s aq_err %s on get_link_info\n",
11052 i40e_stat_str(hw
, err
),
11053 i40e_aq_str(hw
, hw
->aq
.asq_last_status
));
11055 /* if FDIR VSI was set up, start it now */
11056 for (i
= 0; i
< pf
->num_alloc_vsi
; i
++) {
11057 if (pf
->vsi
[i
] && pf
->vsi
[i
]->type
== I40E_VSI_FDIR
) {
11058 i40e_vsi_open(pf
->vsi
[i
]);
11063 /* The driver only wants link up/down and module qualification
11064 * reports from firmware. Note the negative logic.
11066 err
= i40e_aq_set_phy_int_mask(&pf
->hw
,
11067 ~(I40E_AQ_EVENT_LINK_UPDOWN
|
11068 I40E_AQ_EVENT_MEDIA_NA
|
11069 I40E_AQ_EVENT_MODULE_QUAL_FAIL
), NULL
);
11071 dev_info(&pf
->pdev
->dev
, "set phy mask fail, err %s aq_err %s\n",
11072 i40e_stat_str(&pf
->hw
, err
),
11073 i40e_aq_str(&pf
->hw
, pf
->hw
.aq
.asq_last_status
));
11075 /* Reconfigure hardware for allowing smaller MSS in the case
11076 * of TSO, so that we avoid the MDD being fired and causing
11077 * a reset in the case of small MSS+TSO.
11079 val
= rd32(hw
, I40E_REG_MSS
);
11080 if ((val
& I40E_REG_MSS_MIN_MASK
) > I40E_64BYTE_MSS
) {
11081 val
&= ~I40E_REG_MSS_MIN_MASK
;
11082 val
|= I40E_64BYTE_MSS
;
11083 wr32(hw
, I40E_REG_MSS
, val
);
11086 if (pf
->flags
& I40E_FLAG_RESTART_AUTONEG
) {
11088 err
= i40e_aq_set_link_restart_an(&pf
->hw
, true, NULL
);
11090 dev_info(&pf
->pdev
->dev
, "link restart failed, err %s aq_err %s\n",
11091 i40e_stat_str(&pf
->hw
, err
),
11092 i40e_aq_str(&pf
->hw
,
11093 pf
->hw
.aq
.asq_last_status
));
11095 /* The main driver is (mostly) up and happy. We need to set this state
11096 * before setting up the misc vector or we get a race and the vector
11097 * ends up disabled forever.
11099 clear_bit(__I40E_DOWN
, &pf
->state
);
11101 /* In case of MSIX we are going to setup the misc vector right here
11102 * to handle admin queue events etc. In case of legacy and MSI
11103 * the misc functionality and queue processing is combined in
11104 * the same vector and that gets setup at open.
11106 if (pf
->flags
& I40E_FLAG_MSIX_ENABLED
) {
11107 err
= i40e_setup_misc_vector(pf
);
11109 dev_info(&pdev
->dev
,
11110 "setup of misc vector failed: %d\n", err
);
11115 #ifdef CONFIG_PCI_IOV
11116 /* prep for VF support */
11117 if ((pf
->flags
& I40E_FLAG_SRIOV_ENABLED
) &&
11118 (pf
->flags
& I40E_FLAG_MSIX_ENABLED
) &&
11119 !test_bit(__I40E_BAD_EEPROM
, &pf
->state
)) {
11120 /* disable link interrupts for VFs */
11121 val
= rd32(hw
, I40E_PFGEN_PORTMDIO_NUM
);
11122 val
&= ~I40E_PFGEN_PORTMDIO_NUM_VFLINK_STAT_ENA_MASK
;
11123 wr32(hw
, I40E_PFGEN_PORTMDIO_NUM
, val
);
11126 if (pci_num_vf(pdev
)) {
11127 dev_info(&pdev
->dev
,
11128 "Active VFs found, allocating resources.\n");
11129 err
= i40e_alloc_vfs(pf
, pci_num_vf(pdev
));
11131 dev_info(&pdev
->dev
,
11132 "Error %d allocating resources for existing VFs\n",
11136 #endif /* CONFIG_PCI_IOV */
11138 if (pf
->flags
& I40E_FLAG_IWARP_ENABLED
) {
11139 pf
->iwarp_base_vector
= i40e_get_lump(pf
, pf
->irq_pile
,
11140 pf
->num_iwarp_msix
,
11141 I40E_IWARP_IRQ_PILE_ID
);
11142 if (pf
->iwarp_base_vector
< 0) {
11143 dev_info(&pdev
->dev
,
11144 "failed to get tracking for %d vectors for IWARP err=%d\n",
11145 pf
->num_iwarp_msix
, pf
->iwarp_base_vector
);
11146 pf
->flags
&= ~I40E_FLAG_IWARP_ENABLED
;
11150 i40e_dbg_pf_init(pf
);
11152 /* tell the firmware that we're starting */
11153 i40e_send_version(pf
);
11155 /* since everything's happy, start the service_task timer */
11156 mod_timer(&pf
->service_timer
,
11157 round_jiffies(jiffies
+ pf
->service_timer_period
));
11159 /* add this PF to client device list and launch a client service task */
11160 err
= i40e_lan_add_device(pf
);
11162 dev_info(&pdev
->dev
, "Failed to add PF to client API service list: %d\n",
11166 /* create FCoE interface */
11167 i40e_fcoe_vsi_setup(pf
);
11170 #define PCI_SPEED_SIZE 8
11171 #define PCI_WIDTH_SIZE 8
11172 /* Devices on the IOSF bus do not have this information
11173 * and will report PCI Gen 1 x 1 by default so don't bother
11176 if (!(pf
->flags
& I40E_FLAG_NO_PCI_LINK_CHECK
)) {
11177 char speed
[PCI_SPEED_SIZE
] = "Unknown";
11178 char width
[PCI_WIDTH_SIZE
] = "Unknown";
11180 /* Get the negotiated link width and speed from PCI config
11183 pcie_capability_read_word(pf
->pdev
, PCI_EXP_LNKSTA
,
11186 i40e_set_pci_config_data(hw
, link_status
);
11188 switch (hw
->bus
.speed
) {
11189 case i40e_bus_speed_8000
:
11190 strncpy(speed
, "8.0", PCI_SPEED_SIZE
); break;
11191 case i40e_bus_speed_5000
:
11192 strncpy(speed
, "5.0", PCI_SPEED_SIZE
); break;
11193 case i40e_bus_speed_2500
:
11194 strncpy(speed
, "2.5", PCI_SPEED_SIZE
); break;
11198 switch (hw
->bus
.width
) {
11199 case i40e_bus_width_pcie_x8
:
11200 strncpy(width
, "8", PCI_WIDTH_SIZE
); break;
11201 case i40e_bus_width_pcie_x4
:
11202 strncpy(width
, "4", PCI_WIDTH_SIZE
); break;
11203 case i40e_bus_width_pcie_x2
:
11204 strncpy(width
, "2", PCI_WIDTH_SIZE
); break;
11205 case i40e_bus_width_pcie_x1
:
11206 strncpy(width
, "1", PCI_WIDTH_SIZE
); break;
11211 dev_info(&pdev
->dev
, "PCI-Express: Speed %sGT/s Width x%s\n",
11214 if (hw
->bus
.width
< i40e_bus_width_pcie_x8
||
11215 hw
->bus
.speed
< i40e_bus_speed_8000
) {
11216 dev_warn(&pdev
->dev
, "PCI-Express bandwidth available for this device may be insufficient for optimal performance.\n");
11217 dev_warn(&pdev
->dev
, "Please move the device to a different PCI-e link with more lanes and/or higher transfer rate.\n");
11221 /* get the requested speeds from the fw */
11222 err
= i40e_aq_get_phy_capabilities(hw
, false, false, &abilities
, NULL
);
11224 dev_dbg(&pf
->pdev
->dev
, "get requested speeds ret = %s last_status = %s\n",
11225 i40e_stat_str(&pf
->hw
, err
),
11226 i40e_aq_str(&pf
->hw
, pf
->hw
.aq
.asq_last_status
));
11227 pf
->hw
.phy
.link_info
.requested_speeds
= abilities
.link_speed
;
11229 /* get the supported phy types from the fw */
11230 err
= i40e_aq_get_phy_capabilities(hw
, false, true, &abilities
, NULL
);
11232 dev_dbg(&pf
->pdev
->dev
, "get supported phy types ret = %s last_status = %s\n",
11233 i40e_stat_str(&pf
->hw
, err
),
11234 i40e_aq_str(&pf
->hw
, pf
->hw
.aq
.asq_last_status
));
11235 pf
->hw
.phy
.phy_types
= le32_to_cpu(abilities
.phy_type
);
11237 /* Add a filter to drop all Flow control frames from any VSI from being
11238 * transmitted. By doing so we stop a malicious VF from sending out
11239 * PAUSE or PFC frames and potentially controlling traffic for other
11241 * The FW can still send Flow control frames if enabled.
11243 i40e_add_filter_to_drop_tx_flow_control_frames(&pf
->hw
,
11244 pf
->main_vsi_seid
);
11246 if ((pf
->hw
.device_id
== I40E_DEV_ID_10G_BASE_T
) ||
11247 (pf
->hw
.device_id
== I40E_DEV_ID_10G_BASE_T4
))
11248 pf
->flags
|= I40E_FLAG_HAVE_10GBASET_PHY
;
11250 /* print a string summarizing features */
11251 i40e_print_features(pf
);
11255 /* Unwind what we've done if something failed in the setup */
11257 set_bit(__I40E_DOWN
, &pf
->state
);
11258 i40e_clear_interrupt_scheme(pf
);
11261 i40e_reset_interrupt_capability(pf
);
11262 del_timer_sync(&pf
->service_timer
);
11264 err_configure_lan_hmc
:
11265 (void)i40e_shutdown_lan_hmc(hw
);
11267 kfree(pf
->qp_pile
);
11271 iounmap(hw
->hw_addr
);
11275 pci_disable_pcie_error_reporting(pdev
);
11276 pci_release_selected_regions(pdev
,
11277 pci_select_bars(pdev
, IORESOURCE_MEM
));
11280 pci_disable_device(pdev
);
11285 * i40e_remove - Device removal routine
11286 * @pdev: PCI device information struct
11288 * i40e_remove is called by the PCI subsystem to alert the driver
11289 * that is should release a PCI device. This could be caused by a
11290 * Hot-Plug event, or because the driver is going to be removed from
11293 static void i40e_remove(struct pci_dev
*pdev
)
11295 struct i40e_pf
*pf
= pci_get_drvdata(pdev
);
11296 struct i40e_hw
*hw
= &pf
->hw
;
11297 i40e_status ret_code
;
11300 i40e_dbg_pf_exit(pf
);
11304 /* Disable RSS in hw */
11305 i40e_write_rx_ctl(hw
, I40E_PFQF_HENA(0), 0);
11306 i40e_write_rx_ctl(hw
, I40E_PFQF_HENA(1), 0);
11308 /* no more scheduling of any task */
11309 set_bit(__I40E_SUSPENDED
, &pf
->state
);
11310 set_bit(__I40E_DOWN
, &pf
->state
);
11311 if (pf
->service_timer
.data
)
11312 del_timer_sync(&pf
->service_timer
);
11313 if (pf
->service_task
.func
)
11314 cancel_work_sync(&pf
->service_task
);
11316 if (pf
->flags
& I40E_FLAG_SRIOV_ENABLED
) {
11318 pf
->flags
&= ~I40E_FLAG_SRIOV_ENABLED
;
11321 i40e_fdir_teardown(pf
);
11323 /* If there is a switch structure or any orphans, remove them.
11324 * This will leave only the PF's VSI remaining.
11326 for (i
= 0; i
< I40E_MAX_VEB
; i
++) {
11330 if (pf
->veb
[i
]->uplink_seid
== pf
->mac_seid
||
11331 pf
->veb
[i
]->uplink_seid
== 0)
11332 i40e_switch_branch_release(pf
->veb
[i
]);
11335 /* Now we can shutdown the PF's VSI, just before we kill
11338 if (pf
->vsi
[pf
->lan_vsi
])
11339 i40e_vsi_release(pf
->vsi
[pf
->lan_vsi
]);
11341 /* remove attached clients */
11342 ret_code
= i40e_lan_del_device(pf
);
11344 dev_warn(&pdev
->dev
, "Failed to delete client device: %d\n",
11348 /* shutdown and destroy the HMC */
11349 if (hw
->hmc
.hmc_obj
) {
11350 ret_code
= i40e_shutdown_lan_hmc(hw
);
11352 dev_warn(&pdev
->dev
,
11353 "Failed to destroy the HMC resources: %d\n",
11357 /* shutdown the adminq */
11358 ret_code
= i40e_shutdown_adminq(hw
);
11360 dev_warn(&pdev
->dev
,
11361 "Failed to destroy the Admin Queue resources: %d\n",
11364 /* destroy the locks only once, here */
11365 mutex_destroy(&hw
->aq
.arq_mutex
);
11366 mutex_destroy(&hw
->aq
.asq_mutex
);
11368 /* Clear all dynamic memory lists of rings, q_vectors, and VSIs */
11369 i40e_clear_interrupt_scheme(pf
);
11370 for (i
= 0; i
< pf
->num_alloc_vsi
; i
++) {
11372 i40e_vsi_clear_rings(pf
->vsi
[i
]);
11373 i40e_vsi_clear(pf
->vsi
[i
]);
11378 for (i
= 0; i
< I40E_MAX_VEB
; i
++) {
11383 kfree(pf
->qp_pile
);
11386 iounmap(hw
->hw_addr
);
11388 pci_release_selected_regions(pdev
,
11389 pci_select_bars(pdev
, IORESOURCE_MEM
));
11391 pci_disable_pcie_error_reporting(pdev
);
11392 pci_disable_device(pdev
);
11396 * i40e_pci_error_detected - warning that something funky happened in PCI land
11397 * @pdev: PCI device information struct
11399 * Called to warn that something happened and the error handling steps
11400 * are in progress. Allows the driver to quiesce things, be ready for
11403 static pci_ers_result_t
i40e_pci_error_detected(struct pci_dev
*pdev
,
11404 enum pci_channel_state error
)
11406 struct i40e_pf
*pf
= pci_get_drvdata(pdev
);
11408 dev_info(&pdev
->dev
, "%s: error %d\n", __func__
, error
);
11410 /* shutdown all operations */
11411 if (!test_bit(__I40E_SUSPENDED
, &pf
->state
)) {
11413 i40e_prep_for_reset(pf
);
11417 /* Request a slot reset */
11418 return PCI_ERS_RESULT_NEED_RESET
;
11422 * i40e_pci_error_slot_reset - a PCI slot reset just happened
11423 * @pdev: PCI device information struct
11425 * Called to find if the driver can work with the device now that
11426 * the pci slot has been reset. If a basic connection seems good
11427 * (registers are readable and have sane content) then return a
11428 * happy little PCI_ERS_RESULT_xxx.
11430 static pci_ers_result_t
i40e_pci_error_slot_reset(struct pci_dev
*pdev
)
11432 struct i40e_pf
*pf
= pci_get_drvdata(pdev
);
11433 pci_ers_result_t result
;
11437 dev_dbg(&pdev
->dev
, "%s\n", __func__
);
11438 if (pci_enable_device_mem(pdev
)) {
11439 dev_info(&pdev
->dev
,
11440 "Cannot re-enable PCI device after reset.\n");
11441 result
= PCI_ERS_RESULT_DISCONNECT
;
11443 pci_set_master(pdev
);
11444 pci_restore_state(pdev
);
11445 pci_save_state(pdev
);
11446 pci_wake_from_d3(pdev
, false);
11448 reg
= rd32(&pf
->hw
, I40E_GLGEN_RTRIG
);
11450 result
= PCI_ERS_RESULT_RECOVERED
;
11452 result
= PCI_ERS_RESULT_DISCONNECT
;
11455 err
= pci_cleanup_aer_uncorrect_error_status(pdev
);
11457 dev_info(&pdev
->dev
,
11458 "pci_cleanup_aer_uncorrect_error_status failed 0x%0x\n",
11460 /* non-fatal, continue */
11467 * i40e_pci_error_resume - restart operations after PCI error recovery
11468 * @pdev: PCI device information struct
11470 * Called to allow the driver to bring things back up after PCI error
11471 * and/or reset recovery has finished.
11473 static void i40e_pci_error_resume(struct pci_dev
*pdev
)
11475 struct i40e_pf
*pf
= pci_get_drvdata(pdev
);
11477 dev_dbg(&pdev
->dev
, "%s\n", __func__
);
11478 if (test_bit(__I40E_SUSPENDED
, &pf
->state
))
11482 i40e_handle_reset_warning(pf
);
11487 * i40e_shutdown - PCI callback for shutting down
11488 * @pdev: PCI device information struct
11490 static void i40e_shutdown(struct pci_dev
*pdev
)
11492 struct i40e_pf
*pf
= pci_get_drvdata(pdev
);
11493 struct i40e_hw
*hw
= &pf
->hw
;
11495 set_bit(__I40E_SUSPENDED
, &pf
->state
);
11496 set_bit(__I40E_DOWN
, &pf
->state
);
11498 i40e_prep_for_reset(pf
);
11501 wr32(hw
, I40E_PFPM_APM
, (pf
->wol_en
? I40E_PFPM_APM_APME_MASK
: 0));
11502 wr32(hw
, I40E_PFPM_WUFC
, (pf
->wol_en
? I40E_PFPM_WUFC_MAG_MASK
: 0));
11504 del_timer_sync(&pf
->service_timer
);
11505 cancel_work_sync(&pf
->service_task
);
11506 i40e_fdir_teardown(pf
);
11509 i40e_prep_for_reset(pf
);
11512 wr32(hw
, I40E_PFPM_APM
,
11513 (pf
->wol_en
? I40E_PFPM_APM_APME_MASK
: 0));
11514 wr32(hw
, I40E_PFPM_WUFC
,
11515 (pf
->wol_en
? I40E_PFPM_WUFC_MAG_MASK
: 0));
11517 i40e_clear_interrupt_scheme(pf
);
11519 if (system_state
== SYSTEM_POWER_OFF
) {
11520 pci_wake_from_d3(pdev
, pf
->wol_en
);
11521 pci_set_power_state(pdev
, PCI_D3hot
);
11527 * i40e_suspend - PCI callback for moving to D3
11528 * @pdev: PCI device information struct
11530 static int i40e_suspend(struct pci_dev
*pdev
, pm_message_t state
)
11532 struct i40e_pf
*pf
= pci_get_drvdata(pdev
);
11533 struct i40e_hw
*hw
= &pf
->hw
;
11535 set_bit(__I40E_SUSPENDED
, &pf
->state
);
11536 set_bit(__I40E_DOWN
, &pf
->state
);
11539 i40e_prep_for_reset(pf
);
11542 wr32(hw
, I40E_PFPM_APM
, (pf
->wol_en
? I40E_PFPM_APM_APME_MASK
: 0));
11543 wr32(hw
, I40E_PFPM_WUFC
, (pf
->wol_en
? I40E_PFPM_WUFC_MAG_MASK
: 0));
11545 pci_wake_from_d3(pdev
, pf
->wol_en
);
11546 pci_set_power_state(pdev
, PCI_D3hot
);
11552 * i40e_resume - PCI callback for waking up from D3
11553 * @pdev: PCI device information struct
11555 static int i40e_resume(struct pci_dev
*pdev
)
11557 struct i40e_pf
*pf
= pci_get_drvdata(pdev
);
11560 pci_set_power_state(pdev
, PCI_D0
);
11561 pci_restore_state(pdev
);
11562 /* pci_restore_state() clears dev->state_saves, so
11563 * call pci_save_state() again to restore it.
11565 pci_save_state(pdev
);
11567 err
= pci_enable_device_mem(pdev
);
11569 dev_err(&pdev
->dev
, "Cannot enable PCI device from suspend\n");
11572 pci_set_master(pdev
);
11574 /* no wakeup events while running */
11575 pci_wake_from_d3(pdev
, false);
11577 /* handling the reset will rebuild the device state */
11578 if (test_and_clear_bit(__I40E_SUSPENDED
, &pf
->state
)) {
11579 clear_bit(__I40E_DOWN
, &pf
->state
);
11581 i40e_reset_and_rebuild(pf
, false);
11589 static const struct pci_error_handlers i40e_err_handler
= {
11590 .error_detected
= i40e_pci_error_detected
,
11591 .slot_reset
= i40e_pci_error_slot_reset
,
11592 .resume
= i40e_pci_error_resume
,
11595 static struct pci_driver i40e_driver
= {
11596 .name
= i40e_driver_name
,
11597 .id_table
= i40e_pci_tbl
,
11598 .probe
= i40e_probe
,
11599 .remove
= i40e_remove
,
11601 .suspend
= i40e_suspend
,
11602 .resume
= i40e_resume
,
11604 .shutdown
= i40e_shutdown
,
11605 .err_handler
= &i40e_err_handler
,
11606 .sriov_configure
= i40e_pci_sriov_configure
,
11610 * i40e_init_module - Driver registration routine
11612 * i40e_init_module is the first routine called when the driver is
11613 * loaded. All it does is register with the PCI subsystem.
11615 static int __init
i40e_init_module(void)
11617 pr_info("%s: %s - version %s\n", i40e_driver_name
,
11618 i40e_driver_string
, i40e_driver_version_str
);
11619 pr_info("%s: %s\n", i40e_driver_name
, i40e_copyright
);
11621 /* we will see if single thread per module is enough for now,
11622 * it can't be any worse than using the system workqueue which
11623 * was already single threaded
11625 i40e_wq
= create_singlethread_workqueue(i40e_driver_name
);
11627 pr_err("%s: Failed to create workqueue\n", i40e_driver_name
);
11632 return pci_register_driver(&i40e_driver
);
11634 module_init(i40e_init_module
);
11637 * i40e_exit_module - Driver exit cleanup routine
11639 * i40e_exit_module is called just before the driver is removed
11642 static void __exit
i40e_exit_module(void)
11644 pci_unregister_driver(&i40e_driver
);
11645 destroy_workqueue(i40e_wq
);
11648 module_exit(i40e_exit_module
);