1 // SPDX-License-Identifier: GPL-2.0
2 /* Copyright(c) 1999 - 2018 Intel Corporation. */
4 #include <linux/types.h>
5 #include <linux/module.h>
7 #include <linux/netdevice.h>
8 #include <linux/vmalloc.h>
9 #include <linux/string.h>
12 #include <linux/tcp.h>
13 #include <linux/ipv6.h>
14 #include <linux/if_bridge.h>
15 #ifdef NETIF_F_HW_VLAN_CTAG_TX
16 #include <linux/if_vlan.h>
20 #include "ixgbe_type.h"
21 #include "ixgbe_mbx.h"
22 #include "ixgbe_sriov.h"
25 static inline void ixgbe_alloc_vf_macvlans(struct ixgbe_adapter
*adapter
,
28 struct ixgbe_hw
*hw
= &adapter
->hw
;
29 struct vf_macvlans
*mv_list
;
30 int num_vf_macvlans
, i
;
32 /* Initialize list of VF macvlans */
33 INIT_LIST_HEAD(&adapter
->vf_mvs
.l
);
35 num_vf_macvlans
= hw
->mac
.num_rar_entries
-
36 (IXGBE_MAX_PF_MACVLANS
+ 1 + num_vfs
);
40 mv_list
= kcalloc(num_vf_macvlans
, sizeof(struct vf_macvlans
),
43 for (i
= 0; i
< num_vf_macvlans
; i
++) {
45 mv_list
[i
].free
= true;
46 list_add(&mv_list
[i
].l
, &adapter
->vf_mvs
.l
);
48 adapter
->mv_list
= mv_list
;
52 static int __ixgbe_enable_sriov(struct ixgbe_adapter
*adapter
,
55 struct ixgbe_hw
*hw
= &adapter
->hw
;
58 if (adapter
->xdp_prog
) {
59 e_warn(probe
, "SRIOV is not supported with XDP\n");
63 /* Enable VMDq flag so device will be set in VM mode */
64 adapter
->flags
|= IXGBE_FLAG_SRIOV_ENABLED
|
65 IXGBE_FLAG_VMDQ_ENABLED
;
67 /* Allocate memory for per VF control structures */
68 adapter
->vfinfo
= kcalloc(num_vfs
, sizeof(struct vf_data_storage
),
73 adapter
->num_vfs
= num_vfs
;
75 ixgbe_alloc_vf_macvlans(adapter
, num_vfs
);
76 adapter
->ring_feature
[RING_F_VMDQ
].offset
= num_vfs
;
78 /* Initialize default switching mode VEB */
79 IXGBE_WRITE_REG(hw
, IXGBE_PFDTXGSWC
, IXGBE_PFDTXGSWC_VT_LBEN
);
80 adapter
->bridge_mode
= BRIDGE_MODE_VEB
;
82 /* limit traffic classes based on VFs enabled */
83 if ((adapter
->hw
.mac
.type
== ixgbe_mac_82599EB
) && (num_vfs
< 16)) {
84 adapter
->dcb_cfg
.num_tcs
.pg_tcs
= MAX_TRAFFIC_CLASS
;
85 adapter
->dcb_cfg
.num_tcs
.pfc_tcs
= MAX_TRAFFIC_CLASS
;
86 } else if (num_vfs
< 32) {
87 adapter
->dcb_cfg
.num_tcs
.pg_tcs
= 4;
88 adapter
->dcb_cfg
.num_tcs
.pfc_tcs
= 4;
90 adapter
->dcb_cfg
.num_tcs
.pg_tcs
= 1;
91 adapter
->dcb_cfg
.num_tcs
.pfc_tcs
= 1;
94 /* Disable RSC when in SR-IOV mode */
95 adapter
->flags2
&= ~(IXGBE_FLAG2_RSC_CAPABLE
|
96 IXGBE_FLAG2_RSC_ENABLED
);
98 for (i
= 0; i
< num_vfs
; i
++) {
99 /* enable spoof checking for all VFs */
100 adapter
->vfinfo
[i
].spoofchk_enabled
= true;
101 adapter
->vfinfo
[i
].link_enable
= true;
103 /* We support VF RSS querying only for 82599 and x540
104 * devices at the moment. These devices share RSS
105 * indirection table and RSS hash key with PF therefore
106 * we want to disable the querying by default.
108 adapter
->vfinfo
[i
].rss_query_enabled
= false;
110 /* Untrust all VFs */
111 adapter
->vfinfo
[i
].trusted
= false;
113 /* set the default xcast mode */
114 adapter
->vfinfo
[i
].xcast_mode
= IXGBEVF_XCAST_MODE_NONE
;
117 e_info(probe
, "SR-IOV enabled with %d VFs\n", num_vfs
);
122 * ixgbe_get_vfs - Find and take references to all vf devices
123 * @adapter: Pointer to adapter struct
125 static void ixgbe_get_vfs(struct ixgbe_adapter
*adapter
)
127 struct pci_dev
*pdev
= adapter
->pdev
;
128 u16 vendor
= pdev
->vendor
;
129 struct pci_dev
*vfdev
;
134 pos
= pci_find_ext_capability(pdev
, PCI_EXT_CAP_ID_SRIOV
);
137 pci_read_config_word(pdev
, pos
+ PCI_SRIOV_VF_DID
, &vf_id
);
139 vfdev
= pci_get_device(vendor
, vf_id
, NULL
);
140 for (; vfdev
; vfdev
= pci_get_device(vendor
, vf_id
, vfdev
)) {
141 if (!vfdev
->is_virtfn
)
143 if (vfdev
->physfn
!= pdev
)
145 if (vf
>= adapter
->num_vfs
)
148 adapter
->vfinfo
[vf
].vfdev
= vfdev
;
153 /* Note this function is called when the user wants to enable SR-IOV
154 * VFs using the now deprecated module parameter
156 void ixgbe_enable_sriov(struct ixgbe_adapter
*adapter
, unsigned int max_vfs
)
158 int pre_existing_vfs
= 0;
159 unsigned int num_vfs
;
161 pre_existing_vfs
= pci_num_vf(adapter
->pdev
);
162 if (!pre_existing_vfs
&& !max_vfs
)
165 /* If there are pre-existing VFs then we have to force
166 * use of that many - over ride any module parameter value.
167 * This may result from the user unloading the PF driver
168 * while VFs were assigned to guest VMs or because the VFs
169 * have been created via the new PCI SR-IOV sysfs interface.
171 if (pre_existing_vfs
) {
172 num_vfs
= pre_existing_vfs
;
173 dev_warn(&adapter
->pdev
->dev
,
174 "Virtual Functions already enabled for this device - Please reload all VF drivers to avoid spoofed packet errors\n");
178 * The 82599 supports up to 64 VFs per physical function
179 * but this implementation limits allocation to 63 so that
180 * basic networking resources are still available to the
181 * physical function. If the user requests greater than
182 * 63 VFs then it is an error - reset to default of zero.
184 num_vfs
= min_t(unsigned int, max_vfs
, IXGBE_MAX_VFS_DRV_LIMIT
);
186 err
= pci_enable_sriov(adapter
->pdev
, num_vfs
);
188 e_err(probe
, "Failed to enable PCI sriov: %d\n", err
);
193 if (!__ixgbe_enable_sriov(adapter
, num_vfs
)) {
194 ixgbe_get_vfs(adapter
);
198 /* If we have gotten to this point then there is no memory available
199 * to manage the VF devices - print message and bail.
201 e_err(probe
, "Unable to allocate memory for VF Data Storage - "
203 ixgbe_disable_sriov(adapter
);
206 #endif /* #ifdef CONFIG_PCI_IOV */
207 int ixgbe_disable_sriov(struct ixgbe_adapter
*adapter
)
209 unsigned int num_vfs
= adapter
->num_vfs
, vf
;
213 spin_lock_irqsave(&adapter
->vfs_lock
, flags
);
214 /* set num VFs to 0 to prevent access to vfinfo */
215 adapter
->num_vfs
= 0;
216 spin_unlock_irqrestore(&adapter
->vfs_lock
, flags
);
218 /* put the reference to all of the vf devices */
219 for (vf
= 0; vf
< num_vfs
; ++vf
) {
220 struct pci_dev
*vfdev
= adapter
->vfinfo
[vf
].vfdev
;
224 adapter
->vfinfo
[vf
].vfdev
= NULL
;
228 /* free VF control structures */
229 kfree(adapter
->vfinfo
);
230 adapter
->vfinfo
= NULL
;
232 /* free macvlan list */
233 kfree(adapter
->mv_list
);
234 adapter
->mv_list
= NULL
;
236 /* if SR-IOV is already disabled then there is nothing to do */
237 if (!(adapter
->flags
& IXGBE_FLAG_SRIOV_ENABLED
))
240 #ifdef CONFIG_PCI_IOV
242 * If our VFs are assigned we cannot shut down SR-IOV
243 * without causing issues, so just leave the hardware
244 * available but disabled
246 if (pci_vfs_assigned(adapter
->pdev
)) {
247 e_dev_warn("Unloading driver while VFs are assigned - VFs will not be deallocated\n");
250 /* disable iov and allow time for transactions to clear */
251 pci_disable_sriov(adapter
->pdev
);
254 /* Disable VMDq flag so device will be set in VM mode */
255 if (bitmap_weight(adapter
->fwd_bitmask
, adapter
->num_rx_pools
) == 1) {
256 adapter
->flags
&= ~IXGBE_FLAG_VMDQ_ENABLED
;
257 adapter
->flags
&= ~IXGBE_FLAG_SRIOV_ENABLED
;
258 rss
= min_t(int, ixgbe_max_rss_indices(adapter
),
261 rss
= min_t(int, IXGBE_MAX_L2A_QUEUES
, num_online_cpus());
264 adapter
->ring_feature
[RING_F_VMDQ
].offset
= 0;
265 adapter
->ring_feature
[RING_F_RSS
].limit
= rss
;
267 /* take a breather then clean up driver data */
272 static int ixgbe_pci_sriov_enable(struct pci_dev
*dev
, int num_vfs
)
274 #ifdef CONFIG_PCI_IOV
275 struct ixgbe_adapter
*adapter
= pci_get_drvdata(dev
);
276 int pre_existing_vfs
= pci_num_vf(dev
);
277 int err
= 0, num_rx_pools
, i
, limit
;
280 if (pre_existing_vfs
&& pre_existing_vfs
!= num_vfs
)
281 err
= ixgbe_disable_sriov(adapter
);
282 else if (pre_existing_vfs
&& pre_existing_vfs
== num_vfs
)
288 /* While the SR-IOV capability structure reports total VFs to be 64,
289 * we limit the actual number allocated as below based on two factors.
294 * First, we reserve some transmit/receive resources for the PF.
295 * Second, VMDQ also uses the same pools that SR-IOV does. We need to
296 * account for this, so that we don't accidentally allocate more VFs
297 * than we have available pools. The PCI bus driver already checks for
298 * other values out of range.
300 num_tc
= adapter
->hw_tcs
;
301 num_rx_pools
= bitmap_weight(adapter
->fwd_bitmask
,
302 adapter
->num_rx_pools
);
303 limit
= (num_tc
> 4) ? IXGBE_MAX_VFS_8TC
:
304 (num_tc
> 1) ? IXGBE_MAX_VFS_4TC
: IXGBE_MAX_VFS_1TC
;
306 if (num_vfs
> (limit
- num_rx_pools
)) {
307 e_dev_err("Currently configured with %d TCs, and %d offloaded macvlans. Creating more than %d VFs is not allowed\n",
308 num_tc
, num_rx_pools
- 1, limit
- num_rx_pools
);
312 err
= __ixgbe_enable_sriov(adapter
, num_vfs
);
316 for (i
= 0; i
< num_vfs
; i
++)
317 ixgbe_vf_configuration(dev
, (i
| 0x10000000));
319 /* reset before enabling SRIOV to avoid mailbox issues */
320 ixgbe_sriov_reinit(adapter
);
322 err
= pci_enable_sriov(dev
, num_vfs
);
324 e_dev_warn("Failed to enable PCI sriov: %d\n", err
);
327 ixgbe_get_vfs(adapter
);
335 static int ixgbe_pci_sriov_disable(struct pci_dev
*dev
)
337 struct ixgbe_adapter
*adapter
= pci_get_drvdata(dev
);
339 #ifdef CONFIG_PCI_IOV
340 u32 current_flags
= adapter
->flags
;
341 int prev_num_vf
= pci_num_vf(dev
);
344 err
= ixgbe_disable_sriov(adapter
);
346 /* Only reinit if no error and state changed */
347 #ifdef CONFIG_PCI_IOV
348 if (!err
&& (current_flags
!= adapter
->flags
||
349 prev_num_vf
!= pci_num_vf(dev
)))
350 ixgbe_sriov_reinit(adapter
);
356 int ixgbe_pci_sriov_configure(struct pci_dev
*dev
, int num_vfs
)
359 return ixgbe_pci_sriov_disable(dev
);
361 return ixgbe_pci_sriov_enable(dev
, num_vfs
);
364 static int ixgbe_set_vf_multicasts(struct ixgbe_adapter
*adapter
,
367 int entries
= FIELD_GET(IXGBE_VT_MSGINFO_MASK
, msgbuf
[0]);
368 u16
*hash_list
= (u16
*)&msgbuf
[1];
369 struct vf_data_storage
*vfinfo
= &adapter
->vfinfo
[vf
];
370 struct ixgbe_hw
*hw
= &adapter
->hw
;
375 u32 vmolr
= IXGBE_READ_REG(hw
, IXGBE_VMOLR(vf
));
377 /* only so many hash values supported */
378 entries
= min(entries
, IXGBE_MAX_VF_MC_ENTRIES
);
381 * salt away the number of multi cast addresses assigned
382 * to this VF for later use to restore when the PF multi cast
385 vfinfo
->num_vf_mc_hashes
= entries
;
388 * VFs are limited to using the MTA hash table for their multicast
391 for (i
= 0; i
< entries
; i
++) {
392 vfinfo
->vf_mc_hashes
[i
] = hash_list
[i
];
395 for (i
= 0; i
< vfinfo
->num_vf_mc_hashes
; i
++) {
396 vector_reg
= (vfinfo
->vf_mc_hashes
[i
] >> 5) & 0x7F;
397 vector_bit
= vfinfo
->vf_mc_hashes
[i
] & 0x1F;
398 mta_reg
= IXGBE_READ_REG(hw
, IXGBE_MTA(vector_reg
));
399 mta_reg
|= BIT(vector_bit
);
400 IXGBE_WRITE_REG(hw
, IXGBE_MTA(vector_reg
), mta_reg
);
402 vmolr
|= IXGBE_VMOLR_ROMPE
;
403 IXGBE_WRITE_REG(hw
, IXGBE_VMOLR(vf
), vmolr
);
408 #ifdef CONFIG_PCI_IOV
409 void ixgbe_restore_vf_multicasts(struct ixgbe_adapter
*adapter
)
411 struct ixgbe_hw
*hw
= &adapter
->hw
;
412 struct vf_data_storage
*vfinfo
;
418 for (i
= 0; i
< adapter
->num_vfs
; i
++) {
419 u32 vmolr
= IXGBE_READ_REG(hw
, IXGBE_VMOLR(i
));
420 vfinfo
= &adapter
->vfinfo
[i
];
421 for (j
= 0; j
< vfinfo
->num_vf_mc_hashes
; j
++) {
422 hw
->addr_ctrl
.mta_in_use
++;
423 vector_reg
= (vfinfo
->vf_mc_hashes
[j
] >> 5) & 0x7F;
424 vector_bit
= vfinfo
->vf_mc_hashes
[j
] & 0x1F;
425 mta_reg
= IXGBE_READ_REG(hw
, IXGBE_MTA(vector_reg
));
426 mta_reg
|= BIT(vector_bit
);
427 IXGBE_WRITE_REG(hw
, IXGBE_MTA(vector_reg
), mta_reg
);
430 if (vfinfo
->num_vf_mc_hashes
)
431 vmolr
|= IXGBE_VMOLR_ROMPE
;
433 vmolr
&= ~IXGBE_VMOLR_ROMPE
;
434 IXGBE_WRITE_REG(hw
, IXGBE_VMOLR(i
), vmolr
);
437 /* Restore any VF macvlans */
438 ixgbe_full_sync_mac_table(adapter
);
442 static int ixgbe_set_vf_vlan(struct ixgbe_adapter
*adapter
, int add
, int vid
,
445 struct ixgbe_hw
*hw
= &adapter
->hw
;
448 /* If VLAN overlaps with one the PF is currently monitoring make
449 * sure that we are able to allocate a VLVF entry. This may be
450 * redundant but it guarantees PF will maintain visibility to
453 if (add
&& test_bit(vid
, adapter
->active_vlans
)) {
454 err
= hw
->mac
.ops
.set_vfta(hw
, vid
, VMDQ_P(0), true, false);
459 err
= hw
->mac
.ops
.set_vfta(hw
, vid
, vf
, !!add
, false);
464 /* If we failed to add the VF VLAN or we are removing the VF VLAN
465 * we may need to drop the PF pool bit in order to allow us to free
466 * up the VLVF resources.
468 if (test_bit(vid
, adapter
->active_vlans
) ||
469 (adapter
->flags2
& IXGBE_FLAG2_VLAN_PROMISC
))
470 ixgbe_update_pf_promisc_vlvf(adapter
, vid
);
475 static int ixgbe_set_vf_lpe(struct ixgbe_adapter
*adapter
, u32 max_frame
, u32 vf
)
477 struct ixgbe_hw
*hw
= &adapter
->hw
;
480 if (max_frame
< ETH_MIN_MTU
|| max_frame
> IXGBE_MAX_JUMBO_FRAME_SIZE
) {
481 e_err(drv
, "VF max_frame %d out of range\n", max_frame
);
486 * For 82599EB we have to keep all PFs and VFs operating with
487 * the same max_frame value in order to avoid sending an oversize
488 * frame to a VF. In order to guarantee this is handled correctly
489 * for all cases we have several special exceptions to take into
490 * account before we can enable the VF for receive
492 if (adapter
->hw
.mac
.type
== ixgbe_mac_82599EB
) {
493 struct net_device
*dev
= adapter
->netdev
;
494 int pf_max_frame
= dev
->mtu
+ ETH_HLEN
;
495 u32 reg_offset
, vf_shift
, vfre
;
500 pf_max_frame
= max_t(int, pf_max_frame
,
501 IXGBE_FCOE_JUMBO_FRAME_SIZE
);
503 #endif /* CONFIG_FCOE */
504 switch (adapter
->vfinfo
[vf
].vf_api
) {
505 case ixgbe_mbox_api_11
:
506 case ixgbe_mbox_api_12
:
507 case ixgbe_mbox_api_13
:
508 case ixgbe_mbox_api_14
:
509 /* Version 1.1 supports jumbo frames on VFs if PF has
510 * jumbo frames enabled which means legacy VFs are
513 if (pf_max_frame
> ETH_FRAME_LEN
)
517 /* If the PF or VF are running w/ jumbo frames enabled
518 * we need to shut down the VF Rx path as we cannot
519 * support jumbo frames on legacy VFs
521 if ((pf_max_frame
> ETH_FRAME_LEN
) ||
522 (max_frame
> (ETH_FRAME_LEN
+ ETH_FCS_LEN
)))
527 /* determine VF receive enable location */
529 reg_offset
= vf
/ 32;
531 /* enable or disable receive depending on error */
532 vfre
= IXGBE_READ_REG(hw
, IXGBE_VFRE(reg_offset
));
534 vfre
&= ~BIT(vf_shift
);
536 vfre
|= BIT(vf_shift
);
537 IXGBE_WRITE_REG(hw
, IXGBE_VFRE(reg_offset
), vfre
);
540 e_err(drv
, "VF max_frame %d out of range\n", max_frame
);
545 /* pull current max frame size from hardware */
546 max_frs
= IXGBE_READ_REG(hw
, IXGBE_MAXFRS
);
547 max_frs
&= IXGBE_MHADD_MFS_MASK
;
548 max_frs
>>= IXGBE_MHADD_MFS_SHIFT
;
550 if (max_frs
< max_frame
) {
551 max_frs
= max_frame
<< IXGBE_MHADD_MFS_SHIFT
;
552 IXGBE_WRITE_REG(hw
, IXGBE_MAXFRS
, max_frs
);
555 e_info(hw
, "VF requests change max MTU to %d\n", max_frame
);
560 static void ixgbe_set_vmolr(struct ixgbe_hw
*hw
, u32 vf
, bool aupe
)
562 u32 vmolr
= IXGBE_READ_REG(hw
, IXGBE_VMOLR(vf
));
563 vmolr
|= IXGBE_VMOLR_BAM
;
565 vmolr
|= IXGBE_VMOLR_AUPE
;
567 vmolr
&= ~IXGBE_VMOLR_AUPE
;
568 IXGBE_WRITE_REG(hw
, IXGBE_VMOLR(vf
), vmolr
);
571 static void ixgbe_clear_vmvir(struct ixgbe_adapter
*adapter
, u32 vf
)
573 struct ixgbe_hw
*hw
= &adapter
->hw
;
575 IXGBE_WRITE_REG(hw
, IXGBE_VMVIR(vf
), 0);
578 static void ixgbe_clear_vf_vlans(struct ixgbe_adapter
*adapter
, u32 vf
)
580 struct ixgbe_hw
*hw
= &adapter
->hw
;
581 u32 vlvfb_mask
, pool_mask
, i
;
583 /* create mask for VF and other pools */
584 pool_mask
= ~BIT(VMDQ_P(0) % 32);
585 vlvfb_mask
= BIT(vf
% 32);
587 /* post increment loop, covers VLVF_ENTRIES - 1 to 0 */
588 for (i
= IXGBE_VLVF_ENTRIES
; i
--;) {
589 u32 bits
[2], vlvfb
, vid
, vfta
, vlvf
;
590 u32 word
= i
* 2 + vf
/ 32;
593 vlvfb
= IXGBE_READ_REG(hw
, IXGBE_VLVFB(word
));
595 /* if our bit isn't set we can skip it */
596 if (!(vlvfb
& vlvfb_mask
))
599 /* clear our bit from vlvfb */
602 /* create 64b mask to chedk to see if we should clear VLVF */
603 bits
[word
% 2] = vlvfb
;
604 bits
[~word
% 2] = IXGBE_READ_REG(hw
, IXGBE_VLVFB(word
^ 1));
606 /* if other pools are present, just remove ourselves */
607 if (bits
[(VMDQ_P(0) / 32) ^ 1] ||
608 (bits
[VMDQ_P(0) / 32] & pool_mask
))
611 /* if PF is present, leave VFTA */
612 if (bits
[0] || bits
[1])
615 /* if we cannot determine VLAN just remove ourselves */
616 vlvf
= IXGBE_READ_REG(hw
, IXGBE_VLVF(i
));
620 vid
= vlvf
& VLAN_VID_MASK
;
621 mask
= BIT(vid
% 32);
623 /* clear bit from VFTA */
624 vfta
= IXGBE_READ_REG(hw
, IXGBE_VFTA(vid
/ 32));
626 IXGBE_WRITE_REG(hw
, IXGBE_VFTA(vid
/ 32), vfta
^ mask
);
628 /* clear POOL selection enable */
629 IXGBE_WRITE_REG(hw
, IXGBE_VLVF(i
), 0);
631 if (!(adapter
->flags2
& IXGBE_FLAG2_VLAN_PROMISC
))
634 /* clear pool bits */
635 IXGBE_WRITE_REG(hw
, IXGBE_VLVFB(word
), vlvfb
);
639 static int ixgbe_set_vf_macvlan(struct ixgbe_adapter
*adapter
,
640 int vf
, int index
, unsigned char *mac_addr
)
642 struct vf_macvlans
*entry
;
647 list_for_each_entry(entry
, &adapter
->vf_mvs
.l
, l
) {
648 if (entry
->vf
== vf
) {
651 entry
->is_macvlan
= false;
652 ixgbe_del_mac_filter(adapter
,
653 entry
->vf_macvlan
, vf
);
659 * If index was zero then we were asked to clear the uc list
660 * for the VF. We're done.
665 list_for_each_entry(entry
, &adapter
->vf_mvs
.l
, l
) {
673 * If we traversed the entire list and didn't find a free entry
674 * then we're out of space on the RAR table. It's also possible
675 * for the &adapter->vf_mvs.l list to be empty because the original
676 * memory allocation for the list failed, which is not fatal but does
677 * mean we can't support VF requests for MACVLAN because we couldn't
678 * allocate memory for the list management required.
683 retval
= ixgbe_add_mac_filter(adapter
, mac_addr
, vf
);
688 entry
->is_macvlan
= true;
690 memcpy(entry
->vf_macvlan
, mac_addr
, ETH_ALEN
);
695 static inline void ixgbe_vf_reset_event(struct ixgbe_adapter
*adapter
, u32 vf
)
697 struct ixgbe_hw
*hw
= &adapter
->hw
;
698 struct ixgbe_ring_feature
*vmdq
= &adapter
->ring_feature
[RING_F_VMDQ
];
699 struct vf_data_storage
*vfinfo
= &adapter
->vfinfo
[vf
];
700 u32 q_per_pool
= __ALIGN_MASK(1, ~vmdq
->mask
);
701 u8 num_tcs
= adapter
->hw_tcs
;
705 /* remove VLAN filters beloning to this VF */
706 ixgbe_clear_vf_vlans(adapter
, vf
);
708 /* add back PF assigned VLAN or VLAN 0 */
709 ixgbe_set_vf_vlan(adapter
, true, vfinfo
->pf_vlan
, vf
);
711 /* reset offloads to defaults */
712 ixgbe_set_vmolr(hw
, vf
, !vfinfo
->pf_vlan
);
714 /* set outgoing tags for VFs */
715 if (!vfinfo
->pf_vlan
&& !vfinfo
->pf_qos
&& !num_tcs
) {
716 ixgbe_clear_vmvir(adapter
, vf
);
718 if (vfinfo
->pf_qos
|| !num_tcs
)
719 ixgbe_set_vmvir(adapter
, vfinfo
->pf_vlan
,
722 ixgbe_set_vmvir(adapter
, vfinfo
->pf_vlan
,
723 adapter
->default_up
, vf
);
725 if (vfinfo
->spoofchk_enabled
) {
726 hw
->mac
.ops
.set_vlan_anti_spoofing(hw
, true, vf
);
727 hw
->mac
.ops
.set_mac_anti_spoofing(hw
, true, vf
);
731 /* reset multicast table array for vf */
732 adapter
->vfinfo
[vf
].num_vf_mc_hashes
= 0;
734 /* clear any ipsec table info */
735 ixgbe_ipsec_vf_clear(adapter
, vf
);
737 /* Flush and reset the mta with the new values */
738 ixgbe_set_rx_mode(adapter
->netdev
);
740 ixgbe_del_mac_filter(adapter
, adapter
->vfinfo
[vf
].vf_mac_addresses
, vf
);
741 ixgbe_set_vf_macvlan(adapter
, vf
, 0, NULL
);
743 /* reset VF api back to unknown */
744 adapter
->vfinfo
[vf
].vf_api
= ixgbe_mbox_api_10
;
746 /* Restart each queue for given VF */
747 for (queue
= 0; queue
< q_per_pool
; queue
++) {
748 unsigned int reg_idx
= (vf
* q_per_pool
) + queue
;
750 reg_val
= IXGBE_READ_REG(hw
, IXGBE_PVFTXDCTL(reg_idx
));
752 /* Re-enabling only configured queues */
754 reg_val
|= IXGBE_TXDCTL_ENABLE
;
755 IXGBE_WRITE_REG(hw
, IXGBE_PVFTXDCTL(reg_idx
), reg_val
);
756 reg_val
&= ~IXGBE_TXDCTL_ENABLE
;
757 IXGBE_WRITE_REG(hw
, IXGBE_PVFTXDCTL(reg_idx
), reg_val
);
761 IXGBE_WRITE_FLUSH(hw
);
764 static void ixgbe_vf_clear_mbx(struct ixgbe_adapter
*adapter
, u32 vf
)
766 struct ixgbe_hw
*hw
= &adapter
->hw
;
769 /* Clear VF's mailbox memory */
770 for (word
= 0; word
< IXGBE_VFMAILBOX_SIZE
; word
++)
771 IXGBE_WRITE_REG_ARRAY(hw
, IXGBE_PFMBMEM(vf
), word
, 0);
773 IXGBE_WRITE_FLUSH(hw
);
776 static int ixgbe_set_vf_mac(struct ixgbe_adapter
*adapter
,
777 int vf
, unsigned char *mac_addr
)
781 ixgbe_del_mac_filter(adapter
, adapter
->vfinfo
[vf
].vf_mac_addresses
, vf
);
782 retval
= ixgbe_add_mac_filter(adapter
, mac_addr
, vf
);
784 memcpy(adapter
->vfinfo
[vf
].vf_mac_addresses
, mac_addr
,
787 eth_zero_addr(adapter
->vfinfo
[vf
].vf_mac_addresses
);
792 int ixgbe_vf_configuration(struct pci_dev
*pdev
, unsigned int event_mask
)
794 struct ixgbe_adapter
*adapter
= pci_get_drvdata(pdev
);
795 unsigned int vfn
= (event_mask
& 0x3f);
797 bool enable
= ((event_mask
& 0x10000000U
) != 0);
800 eth_zero_addr(adapter
->vfinfo
[vfn
].vf_mac_addresses
);
805 static inline void ixgbe_write_qde(struct ixgbe_adapter
*adapter
, u32 vf
,
808 struct ixgbe_hw
*hw
= &adapter
->hw
;
809 struct ixgbe_ring_feature
*vmdq
= &adapter
->ring_feature
[RING_F_VMDQ
];
810 u32 q_per_pool
= __ALIGN_MASK(1, ~vmdq
->mask
);
813 for (i
= vf
* q_per_pool
; i
< ((vf
+ 1) * q_per_pool
); i
++) {
816 /* flush previous write */
817 IXGBE_WRITE_FLUSH(hw
);
819 /* indicate to hardware that we want to set drop enable */
820 reg
= IXGBE_QDE_WRITE
| qde
;
821 reg
|= i
<< IXGBE_QDE_IDX_SHIFT
;
822 IXGBE_WRITE_REG(hw
, IXGBE_QDE
, reg
);
827 * ixgbe_set_vf_rx_tx - Set VF rx tx
828 * @adapter: Pointer to adapter struct
831 * Set or reset correct transmit and receive for vf
833 static void ixgbe_set_vf_rx_tx(struct ixgbe_adapter
*adapter
, int vf
)
835 u32 reg_cur_tx
, reg_cur_rx
, reg_req_tx
, reg_req_rx
;
836 struct ixgbe_hw
*hw
= &adapter
->hw
;
837 u32 reg_offset
, vf_shift
;
840 reg_offset
= vf
/ 32;
842 reg_cur_tx
= IXGBE_READ_REG(hw
, IXGBE_VFTE(reg_offset
));
843 reg_cur_rx
= IXGBE_READ_REG(hw
, IXGBE_VFRE(reg_offset
));
845 if (adapter
->vfinfo
[vf
].link_enable
) {
846 reg_req_tx
= reg_cur_tx
| 1 << vf_shift
;
847 reg_req_rx
= reg_cur_rx
| 1 << vf_shift
;
849 reg_req_tx
= reg_cur_tx
& ~(1 << vf_shift
);
850 reg_req_rx
= reg_cur_rx
& ~(1 << vf_shift
);
853 /* The 82599 cannot support a mix of jumbo and non-jumbo PF/VFs.
854 * For more info take a look at ixgbe_set_vf_lpe
856 if (adapter
->hw
.mac
.type
== ixgbe_mac_82599EB
) {
857 struct net_device
*dev
= adapter
->netdev
;
858 int pf_max_frame
= dev
->mtu
+ ETH_HLEN
;
860 #if IS_ENABLED(CONFIG_FCOE)
862 pf_max_frame
= max_t(int, pf_max_frame
,
863 IXGBE_FCOE_JUMBO_FRAME_SIZE
);
864 #endif /* CONFIG_FCOE */
866 if (pf_max_frame
> ETH_FRAME_LEN
)
867 reg_req_rx
= reg_cur_rx
& ~(1 << vf_shift
);
870 /* Enable/Disable particular VF */
871 if (reg_cur_tx
!= reg_req_tx
)
872 IXGBE_WRITE_REG(hw
, IXGBE_VFTE(reg_offset
), reg_req_tx
);
873 if (reg_cur_rx
!= reg_req_rx
)
874 IXGBE_WRITE_REG(hw
, IXGBE_VFRE(reg_offset
), reg_req_rx
);
877 static int ixgbe_vf_reset_msg(struct ixgbe_adapter
*adapter
, u32 vf
)
879 struct ixgbe_ring_feature
*vmdq
= &adapter
->ring_feature
[RING_F_VMDQ
];
880 struct ixgbe_hw
*hw
= &adapter
->hw
;
881 unsigned char *vf_mac
= adapter
->vfinfo
[vf
].vf_mac_addresses
;
882 u32 reg
, reg_offset
, vf_shift
;
883 u32 msgbuf
[4] = {0, 0, 0, 0};
884 u8
*addr
= (u8
*)(&msgbuf
[1]);
885 u32 q_per_pool
= __ALIGN_MASK(1, ~vmdq
->mask
);
888 e_info(probe
, "VF Reset msg received from vf %d\n", vf
);
890 /* reset the filters for the device */
891 ixgbe_vf_reset_event(adapter
, vf
);
893 ixgbe_vf_clear_mbx(adapter
, vf
);
895 /* set vf mac address */
896 if (!is_zero_ether_addr(vf_mac
))
897 ixgbe_set_vf_mac(adapter
, vf
, vf_mac
);
900 reg_offset
= vf
/ 32;
902 /* force drop enable for all VF Rx queues */
903 reg
= IXGBE_QDE_ENABLE
;
904 if (adapter
->vfinfo
[vf
].pf_vlan
)
905 reg
|= IXGBE_QDE_HIDE_VLAN
;
907 ixgbe_write_qde(adapter
, vf
, reg
);
909 ixgbe_set_vf_rx_tx(adapter
, vf
);
911 /* enable VF mailbox for further messages */
912 adapter
->vfinfo
[vf
].clear_to_send
= true;
914 /* Enable counting of spoofed packets in the SSVPC register */
915 reg
= IXGBE_READ_REG(hw
, IXGBE_VMECM(reg_offset
));
916 reg
|= BIT(vf_shift
);
917 IXGBE_WRITE_REG(hw
, IXGBE_VMECM(reg_offset
), reg
);
920 * Reset the VFs TDWBAL and TDWBAH registers
921 * which are not cleared by an FLR
923 for (i
= 0; i
< q_per_pool
; i
++) {
924 IXGBE_WRITE_REG(hw
, IXGBE_PVFTDWBAHn(q_per_pool
, vf
, i
), 0);
925 IXGBE_WRITE_REG(hw
, IXGBE_PVFTDWBALn(q_per_pool
, vf
, i
), 0);
928 /* reply to reset with ack and vf mac address */
929 msgbuf
[0] = IXGBE_VF_RESET
;
930 if (!is_zero_ether_addr(vf_mac
) && adapter
->vfinfo
[vf
].pf_set_mac
) {
931 msgbuf
[0] |= IXGBE_VT_MSGTYPE_ACK
;
932 memcpy(addr
, vf_mac
, ETH_ALEN
);
934 msgbuf
[0] |= IXGBE_VT_MSGTYPE_NACK
;
938 * Piggyback the multicast filter type so VF can compute the
941 msgbuf
[3] = hw
->mac
.mc_filter_type
;
942 ixgbe_write_mbx(hw
, msgbuf
, IXGBE_VF_PERMADDR_MSG_LEN
, vf
);
947 static int ixgbe_set_vf_mac_addr(struct ixgbe_adapter
*adapter
,
950 u8
*new_mac
= ((u8
*)(&msgbuf
[1]));
952 if (!is_valid_ether_addr(new_mac
)) {
953 e_warn(drv
, "VF %d attempted to set invalid mac\n", vf
);
957 if (adapter
->vfinfo
[vf
].pf_set_mac
&& !adapter
->vfinfo
[vf
].trusted
&&
958 !ether_addr_equal(adapter
->vfinfo
[vf
].vf_mac_addresses
, new_mac
)) {
960 "VF %d attempted to override administratively set MAC address\n"
961 "Reload the VF driver to resume operations\n",
966 return ixgbe_set_vf_mac(adapter
, vf
, new_mac
) < 0;
969 static int ixgbe_set_vf_vlan_msg(struct ixgbe_adapter
*adapter
,
972 u32 add
= FIELD_GET(IXGBE_VT_MSGINFO_MASK
, msgbuf
[0]);
973 u32 vid
= (msgbuf
[1] & IXGBE_VLVF_VLANID_MASK
);
974 u8 tcs
= adapter
->hw_tcs
;
976 if (adapter
->vfinfo
[vf
].pf_vlan
|| tcs
) {
978 "VF %d attempted to override administratively set VLAN configuration\n"
979 "Reload the VF driver to resume operations\n",
984 /* VLAN 0 is a special case, don't allow it to be removed */
988 return ixgbe_set_vf_vlan(adapter
, add
, vid
, vf
);
991 static int ixgbe_set_vf_macvlan_msg(struct ixgbe_adapter
*adapter
,
994 u8
*new_mac
= ((u8
*)(&msgbuf
[1]));
995 int index
= FIELD_GET(IXGBE_VT_MSGINFO_MASK
, msgbuf
[0]);
998 if (adapter
->vfinfo
[vf
].pf_set_mac
&& !adapter
->vfinfo
[vf
].trusted
&&
1001 "VF %d requested MACVLAN filter but is administratively denied\n",
1006 /* An non-zero index indicates the VF is setting a filter */
1008 if (!is_valid_ether_addr(new_mac
)) {
1009 e_warn(drv
, "VF %d attempted to set invalid mac\n", vf
);
1014 * If the VF is allowed to set MAC filters then turn off
1015 * anti-spoofing to avoid false positives.
1017 if (adapter
->vfinfo
[vf
].spoofchk_enabled
) {
1018 struct ixgbe_hw
*hw
= &adapter
->hw
;
1020 hw
->mac
.ops
.set_mac_anti_spoofing(hw
, false, vf
);
1021 hw
->mac
.ops
.set_vlan_anti_spoofing(hw
, false, vf
);
1025 err
= ixgbe_set_vf_macvlan(adapter
, vf
, index
, new_mac
);
1028 "VF %d has requested a MACVLAN filter but there is no space for it\n",
1034 static int ixgbe_negotiate_vf_api(struct ixgbe_adapter
*adapter
,
1035 u32
*msgbuf
, u32 vf
)
1037 int api
= msgbuf
[1];
1040 case ixgbe_mbox_api_10
:
1041 case ixgbe_mbox_api_11
:
1042 case ixgbe_mbox_api_12
:
1043 case ixgbe_mbox_api_13
:
1044 case ixgbe_mbox_api_14
:
1045 adapter
->vfinfo
[vf
].vf_api
= api
;
1051 e_info(drv
, "VF %d requested invalid api version %u\n", vf
, api
);
1056 static int ixgbe_get_vf_queues(struct ixgbe_adapter
*adapter
,
1057 u32
*msgbuf
, u32 vf
)
1059 struct net_device
*dev
= adapter
->netdev
;
1060 struct ixgbe_ring_feature
*vmdq
= &adapter
->ring_feature
[RING_F_VMDQ
];
1061 unsigned int default_tc
= 0;
1062 u8 num_tcs
= adapter
->hw_tcs
;
1064 /* verify the PF is supporting the correct APIs */
1065 switch (adapter
->vfinfo
[vf
].vf_api
) {
1066 case ixgbe_mbox_api_20
:
1067 case ixgbe_mbox_api_11
:
1068 case ixgbe_mbox_api_12
:
1069 case ixgbe_mbox_api_13
:
1070 case ixgbe_mbox_api_14
:
1076 /* only allow 1 Tx queue for bandwidth limiting */
1077 msgbuf
[IXGBE_VF_TX_QUEUES
] = __ALIGN_MASK(1, ~vmdq
->mask
);
1078 msgbuf
[IXGBE_VF_RX_QUEUES
] = __ALIGN_MASK(1, ~vmdq
->mask
);
1080 /* if TCs > 1 determine which TC belongs to default user priority */
1082 default_tc
= netdev_get_prio_tc_map(dev
, adapter
->default_up
);
1084 /* notify VF of need for VLAN tag stripping, and correct queue */
1086 msgbuf
[IXGBE_VF_TRANS_VLAN
] = num_tcs
;
1087 else if (adapter
->vfinfo
[vf
].pf_vlan
|| adapter
->vfinfo
[vf
].pf_qos
)
1088 msgbuf
[IXGBE_VF_TRANS_VLAN
] = 1;
1090 msgbuf
[IXGBE_VF_TRANS_VLAN
] = 0;
1092 /* notify VF of default queue */
1093 msgbuf
[IXGBE_VF_DEF_QUEUE
] = default_tc
;
1098 static int ixgbe_get_vf_reta(struct ixgbe_adapter
*adapter
, u32
*msgbuf
, u32 vf
)
1101 u32
*out_buf
= &msgbuf
[1];
1102 const u8
*reta
= adapter
->rss_indir_tbl
;
1103 u32 reta_size
= ixgbe_rss_indir_tbl_entries(adapter
);
1105 /* Check if operation is permitted */
1106 if (!adapter
->vfinfo
[vf
].rss_query_enabled
)
1109 /* verify the PF is supporting the correct API */
1110 switch (adapter
->vfinfo
[vf
].vf_api
) {
1111 case ixgbe_mbox_api_14
:
1112 case ixgbe_mbox_api_13
:
1113 case ixgbe_mbox_api_12
:
1119 /* This mailbox command is supported (required) only for 82599 and x540
1120 * VFs which support up to 4 RSS queues. Therefore we will compress the
1121 * RETA by saving only 2 bits from each entry. This way we will be able
1122 * to transfer the whole RETA in a single mailbox operation.
1124 for (i
= 0; i
< reta_size
/ 16; i
++) {
1126 for (j
= 0; j
< 16; j
++)
1127 out_buf
[i
] |= (u32
)(reta
[16 * i
+ j
] & 0x3) << (2 * j
);
1133 static int ixgbe_get_vf_rss_key(struct ixgbe_adapter
*adapter
,
1134 u32
*msgbuf
, u32 vf
)
1136 u32
*rss_key
= &msgbuf
[1];
1138 /* Check if the operation is permitted */
1139 if (!adapter
->vfinfo
[vf
].rss_query_enabled
)
1142 /* verify the PF is supporting the correct API */
1143 switch (adapter
->vfinfo
[vf
].vf_api
) {
1144 case ixgbe_mbox_api_14
:
1145 case ixgbe_mbox_api_13
:
1146 case ixgbe_mbox_api_12
:
1152 memcpy(rss_key
, adapter
->rss_key
, IXGBE_RSS_KEY_SIZE
);
1157 static int ixgbe_update_vf_xcast_mode(struct ixgbe_adapter
*adapter
,
1158 u32
*msgbuf
, u32 vf
)
1160 struct ixgbe_hw
*hw
= &adapter
->hw
;
1161 int xcast_mode
= msgbuf
[1];
1162 u32 vmolr
, fctrl
, disable
, enable
;
1164 /* verify the PF is supporting the correct APIs */
1165 switch (adapter
->vfinfo
[vf
].vf_api
) {
1166 case ixgbe_mbox_api_12
:
1167 /* promisc introduced in 1.3 version */
1168 if (xcast_mode
== IXGBEVF_XCAST_MODE_PROMISC
)
1171 case ixgbe_mbox_api_13
:
1172 case ixgbe_mbox_api_14
:
1178 if (xcast_mode
> IXGBEVF_XCAST_MODE_MULTI
&&
1179 !adapter
->vfinfo
[vf
].trusted
) {
1180 xcast_mode
= IXGBEVF_XCAST_MODE_MULTI
;
1183 if (adapter
->vfinfo
[vf
].xcast_mode
== xcast_mode
)
1186 switch (xcast_mode
) {
1187 case IXGBEVF_XCAST_MODE_NONE
:
1188 disable
= IXGBE_VMOLR_ROMPE
|
1189 IXGBE_VMOLR_MPE
| IXGBE_VMOLR_UPE
| IXGBE_VMOLR_VPE
;
1190 enable
= IXGBE_VMOLR_BAM
;
1192 case IXGBEVF_XCAST_MODE_MULTI
:
1193 disable
= IXGBE_VMOLR_MPE
| IXGBE_VMOLR_UPE
| IXGBE_VMOLR_VPE
;
1194 enable
= IXGBE_VMOLR_BAM
| IXGBE_VMOLR_ROMPE
;
1196 case IXGBEVF_XCAST_MODE_ALLMULTI
:
1197 disable
= IXGBE_VMOLR_UPE
| IXGBE_VMOLR_VPE
;
1198 enable
= IXGBE_VMOLR_BAM
| IXGBE_VMOLR_ROMPE
| IXGBE_VMOLR_MPE
;
1200 case IXGBEVF_XCAST_MODE_PROMISC
:
1201 if (hw
->mac
.type
<= ixgbe_mac_82599EB
)
1204 fctrl
= IXGBE_READ_REG(hw
, IXGBE_FCTRL
);
1205 if (!(fctrl
& IXGBE_FCTRL_UPE
)) {
1206 /* VF promisc requires PF in promisc */
1208 "Enabling VF promisc requires PF in promisc\n");
1212 disable
= IXGBE_VMOLR_VPE
;
1213 enable
= IXGBE_VMOLR_BAM
| IXGBE_VMOLR_ROMPE
|
1214 IXGBE_VMOLR_MPE
| IXGBE_VMOLR_UPE
;
1220 vmolr
= IXGBE_READ_REG(hw
, IXGBE_VMOLR(vf
));
1223 IXGBE_WRITE_REG(hw
, IXGBE_VMOLR(vf
), vmolr
);
1225 adapter
->vfinfo
[vf
].xcast_mode
= xcast_mode
;
1228 msgbuf
[1] = xcast_mode
;
1233 static int ixgbe_get_vf_link_state(struct ixgbe_adapter
*adapter
,
1234 u32
*msgbuf
, u32 vf
)
1236 u32
*link_state
= &msgbuf
[1];
1238 /* verify the PF is supporting the correct API */
1239 switch (adapter
->vfinfo
[vf
].vf_api
) {
1240 case ixgbe_mbox_api_12
:
1241 case ixgbe_mbox_api_13
:
1242 case ixgbe_mbox_api_14
:
1248 *link_state
= adapter
->vfinfo
[vf
].link_enable
;
1253 static int ixgbe_rcv_msg_from_vf(struct ixgbe_adapter
*adapter
, u32 vf
)
1255 u32 mbx_size
= IXGBE_VFMAILBOX_SIZE
;
1256 u32 msgbuf
[IXGBE_VFMAILBOX_SIZE
];
1257 struct ixgbe_hw
*hw
= &adapter
->hw
;
1260 retval
= ixgbe_read_mbx(hw
, msgbuf
, mbx_size
, vf
);
1263 pr_err("Error receiving message from VF\n");
1267 /* this is a message we already processed, do nothing */
1268 if (msgbuf
[0] & (IXGBE_VT_MSGTYPE_ACK
| IXGBE_VT_MSGTYPE_NACK
))
1271 /* flush the ack before we write any messages back */
1272 IXGBE_WRITE_FLUSH(hw
);
1274 if (msgbuf
[0] == IXGBE_VF_RESET
)
1275 return ixgbe_vf_reset_msg(adapter
, vf
);
1278 * until the vf completes a virtual function reset it should not be
1279 * allowed to start any configuration.
1281 if (!adapter
->vfinfo
[vf
].clear_to_send
) {
1282 msgbuf
[0] |= IXGBE_VT_MSGTYPE_NACK
;
1283 ixgbe_write_mbx(hw
, msgbuf
, 1, vf
);
1287 switch ((msgbuf
[0] & 0xFFFF)) {
1288 case IXGBE_VF_SET_MAC_ADDR
:
1289 retval
= ixgbe_set_vf_mac_addr(adapter
, msgbuf
, vf
);
1291 case IXGBE_VF_SET_MULTICAST
:
1292 retval
= ixgbe_set_vf_multicasts(adapter
, msgbuf
, vf
);
1294 case IXGBE_VF_SET_VLAN
:
1295 retval
= ixgbe_set_vf_vlan_msg(adapter
, msgbuf
, vf
);
1297 case IXGBE_VF_SET_LPE
:
1298 retval
= ixgbe_set_vf_lpe(adapter
, msgbuf
[1], vf
);
1300 case IXGBE_VF_SET_MACVLAN
:
1301 retval
= ixgbe_set_vf_macvlan_msg(adapter
, msgbuf
, vf
);
1303 case IXGBE_VF_API_NEGOTIATE
:
1304 retval
= ixgbe_negotiate_vf_api(adapter
, msgbuf
, vf
);
1306 case IXGBE_VF_GET_QUEUES
:
1307 retval
= ixgbe_get_vf_queues(adapter
, msgbuf
, vf
);
1309 case IXGBE_VF_GET_RETA
:
1310 retval
= ixgbe_get_vf_reta(adapter
, msgbuf
, vf
);
1312 case IXGBE_VF_GET_RSS_KEY
:
1313 retval
= ixgbe_get_vf_rss_key(adapter
, msgbuf
, vf
);
1315 case IXGBE_VF_UPDATE_XCAST_MODE
:
1316 retval
= ixgbe_update_vf_xcast_mode(adapter
, msgbuf
, vf
);
1318 case IXGBE_VF_GET_LINK_STATE
:
1319 retval
= ixgbe_get_vf_link_state(adapter
, msgbuf
, vf
);
1321 case IXGBE_VF_IPSEC_ADD
:
1322 retval
= ixgbe_ipsec_vf_add_sa(adapter
, msgbuf
, vf
);
1324 case IXGBE_VF_IPSEC_DEL
:
1325 retval
= ixgbe_ipsec_vf_del_sa(adapter
, msgbuf
, vf
);
1328 e_err(drv
, "Unhandled Msg %8.8x\n", msgbuf
[0]);
1333 /* notify the VF of the results of what it sent us */
1335 msgbuf
[0] |= IXGBE_VT_MSGTYPE_NACK
;
1337 msgbuf
[0] |= IXGBE_VT_MSGTYPE_ACK
;
1339 msgbuf
[0] |= IXGBE_VT_MSGTYPE_CTS
;
1341 ixgbe_write_mbx(hw
, msgbuf
, mbx_size
, vf
);
1346 static void ixgbe_rcv_ack_from_vf(struct ixgbe_adapter
*adapter
, u32 vf
)
1348 struct ixgbe_hw
*hw
= &adapter
->hw
;
1349 u32 msg
= IXGBE_VT_MSGTYPE_NACK
;
1351 /* if device isn't clear to send it shouldn't be reading either */
1352 if (!adapter
->vfinfo
[vf
].clear_to_send
)
1353 ixgbe_write_mbx(hw
, &msg
, 1, vf
);
1356 void ixgbe_msg_task(struct ixgbe_adapter
*adapter
)
1358 struct ixgbe_hw
*hw
= &adapter
->hw
;
1359 unsigned long flags
;
1362 spin_lock_irqsave(&adapter
->vfs_lock
, flags
);
1363 for (vf
= 0; vf
< adapter
->num_vfs
; vf
++) {
1364 /* process any reset requests */
1365 if (!ixgbe_check_for_rst(hw
, vf
))
1366 ixgbe_vf_reset_event(adapter
, vf
);
1368 /* process any messages pending */
1369 if (!ixgbe_check_for_msg(hw
, vf
))
1370 ixgbe_rcv_msg_from_vf(adapter
, vf
);
1372 /* process any acks */
1373 if (!ixgbe_check_for_ack(hw
, vf
))
1374 ixgbe_rcv_ack_from_vf(adapter
, vf
);
1376 spin_unlock_irqrestore(&adapter
->vfs_lock
, flags
);
1379 static inline void ixgbe_ping_vf(struct ixgbe_adapter
*adapter
, int vf
)
1381 struct ixgbe_hw
*hw
= &adapter
->hw
;
1384 ping
= IXGBE_PF_CONTROL_MSG
;
1385 if (adapter
->vfinfo
[vf
].clear_to_send
)
1386 ping
|= IXGBE_VT_MSGTYPE_CTS
;
1387 ixgbe_write_mbx(hw
, &ping
, 1, vf
);
1390 void ixgbe_ping_all_vfs(struct ixgbe_adapter
*adapter
)
1392 struct ixgbe_hw
*hw
= &adapter
->hw
;
1396 for (i
= 0 ; i
< adapter
->num_vfs
; i
++) {
1397 ping
= IXGBE_PF_CONTROL_MSG
;
1398 if (adapter
->vfinfo
[i
].clear_to_send
)
1399 ping
|= IXGBE_VT_MSGTYPE_CTS
;
1400 ixgbe_write_mbx(hw
, &ping
, 1, i
);
1405 * ixgbe_set_all_vfs - update vfs queues
1406 * @adapter: Pointer to adapter struct
1408 * Update setting transmit and receive queues for all vfs
1410 void ixgbe_set_all_vfs(struct ixgbe_adapter
*adapter
)
1414 for (i
= 0 ; i
< adapter
->num_vfs
; i
++)
1415 ixgbe_set_vf_link_state(adapter
, i
,
1416 adapter
->vfinfo
[i
].link_state
);
1419 int ixgbe_ndo_set_vf_mac(struct net_device
*netdev
, int vf
, u8
*mac
)
1421 struct ixgbe_adapter
*adapter
= netdev_priv(netdev
);
1424 if (vf
>= adapter
->num_vfs
)
1427 if (is_valid_ether_addr(mac
)) {
1428 dev_info(&adapter
->pdev
->dev
, "setting MAC %pM on VF %d\n",
1430 dev_info(&adapter
->pdev
->dev
, "Reload the VF driver to make this change effective.");
1432 retval
= ixgbe_set_vf_mac(adapter
, vf
, mac
);
1434 adapter
->vfinfo
[vf
].pf_set_mac
= true;
1436 if (test_bit(__IXGBE_DOWN
, &adapter
->state
)) {
1437 dev_warn(&adapter
->pdev
->dev
, "The VF MAC address has been set, but the PF device is not up.\n");
1438 dev_warn(&adapter
->pdev
->dev
, "Bring the PF device up before attempting to use the VF device.\n");
1441 dev_warn(&adapter
->pdev
->dev
, "The VF MAC address was NOT set due to invalid or duplicate MAC address.\n");
1443 } else if (is_zero_ether_addr(mac
)) {
1444 unsigned char *vf_mac_addr
=
1445 adapter
->vfinfo
[vf
].vf_mac_addresses
;
1448 if (is_zero_ether_addr(vf_mac_addr
))
1451 dev_info(&adapter
->pdev
->dev
, "removing MAC on VF %d\n", vf
);
1453 retval
= ixgbe_del_mac_filter(adapter
, vf_mac_addr
, vf
);
1455 adapter
->vfinfo
[vf
].pf_set_mac
= false;
1456 memcpy(vf_mac_addr
, mac
, ETH_ALEN
);
1458 dev_warn(&adapter
->pdev
->dev
, "Could NOT remove the VF MAC address.\n");
1467 static int ixgbe_enable_port_vlan(struct ixgbe_adapter
*adapter
, int vf
,
1470 struct ixgbe_hw
*hw
= &adapter
->hw
;
1473 err
= ixgbe_set_vf_vlan(adapter
, true, vlan
, vf
);
1477 /* Revoke tagless access via VLAN 0 */
1478 ixgbe_set_vf_vlan(adapter
, false, 0, vf
);
1480 ixgbe_set_vmvir(adapter
, vlan
, qos
, vf
);
1481 ixgbe_set_vmolr(hw
, vf
, false);
1483 /* enable hide vlan on X550 */
1484 if (hw
->mac
.type
>= ixgbe_mac_X550
)
1485 ixgbe_write_qde(adapter
, vf
, IXGBE_QDE_ENABLE
|
1486 IXGBE_QDE_HIDE_VLAN
);
1488 adapter
->vfinfo
[vf
].pf_vlan
= vlan
;
1489 adapter
->vfinfo
[vf
].pf_qos
= qos
;
1490 dev_info(&adapter
->pdev
->dev
,
1491 "Setting VLAN %d, QOS 0x%x on VF %d\n", vlan
, qos
, vf
);
1492 if (test_bit(__IXGBE_DOWN
, &adapter
->state
)) {
1493 dev_warn(&adapter
->pdev
->dev
,
1494 "The VF VLAN has been set, but the PF device is not up.\n");
1495 dev_warn(&adapter
->pdev
->dev
,
1496 "Bring the PF device up before attempting to use the VF device.\n");
1503 static int ixgbe_disable_port_vlan(struct ixgbe_adapter
*adapter
, int vf
)
1505 struct ixgbe_hw
*hw
= &adapter
->hw
;
1508 err
= ixgbe_set_vf_vlan(adapter
, false,
1509 adapter
->vfinfo
[vf
].pf_vlan
, vf
);
1510 /* Restore tagless access via VLAN 0 */
1511 ixgbe_set_vf_vlan(adapter
, true, 0, vf
);
1512 ixgbe_clear_vmvir(adapter
, vf
);
1513 ixgbe_set_vmolr(hw
, vf
, true);
1515 /* disable hide VLAN on X550 */
1516 if (hw
->mac
.type
>= ixgbe_mac_X550
)
1517 ixgbe_write_qde(adapter
, vf
, IXGBE_QDE_ENABLE
);
1519 adapter
->vfinfo
[vf
].pf_vlan
= 0;
1520 adapter
->vfinfo
[vf
].pf_qos
= 0;
1525 int ixgbe_ndo_set_vf_vlan(struct net_device
*netdev
, int vf
, u16 vlan
,
1526 u8 qos
, __be16 vlan_proto
)
1529 struct ixgbe_adapter
*adapter
= netdev_priv(netdev
);
1531 if ((vf
>= adapter
->num_vfs
) || (vlan
> 4095) || (qos
> 7))
1533 if (vlan_proto
!= htons(ETH_P_8021Q
))
1534 return -EPROTONOSUPPORT
;
1536 /* Check if there is already a port VLAN set, if so
1537 * we have to delete the old one first before we
1538 * can set the new one. The usage model had
1539 * previously assumed the user would delete the
1540 * old port VLAN before setting a new one but this
1541 * is not necessarily the case.
1543 if (adapter
->vfinfo
[vf
].pf_vlan
)
1544 err
= ixgbe_disable_port_vlan(adapter
, vf
);
1547 err
= ixgbe_enable_port_vlan(adapter
, vf
, vlan
, qos
);
1549 err
= ixgbe_disable_port_vlan(adapter
, vf
);
1556 int ixgbe_link_mbps(struct ixgbe_adapter
*adapter
)
1558 switch (adapter
->link_speed
) {
1559 case IXGBE_LINK_SPEED_100_FULL
:
1561 case IXGBE_LINK_SPEED_1GB_FULL
:
1563 case IXGBE_LINK_SPEED_10GB_FULL
:
1570 static void ixgbe_set_vf_rate_limit(struct ixgbe_adapter
*adapter
, int vf
)
1572 struct ixgbe_ring_feature
*vmdq
= &adapter
->ring_feature
[RING_F_VMDQ
];
1573 struct ixgbe_hw
*hw
= &adapter
->hw
;
1575 u16 queue
, queues_per_pool
;
1576 u16 tx_rate
= adapter
->vfinfo
[vf
].tx_rate
;
1579 /* start with base link speed value */
1580 bcnrc_val
= adapter
->vf_rate_link_speed
;
1582 /* Calculate the rate factor values to set */
1583 bcnrc_val
<<= IXGBE_RTTBCNRC_RF_INT_SHIFT
;
1584 bcnrc_val
/= tx_rate
;
1586 /* clear everything but the rate factor */
1587 bcnrc_val
&= IXGBE_RTTBCNRC_RF_INT_MASK
|
1588 IXGBE_RTTBCNRC_RF_DEC_MASK
;
1590 /* enable the rate scheduler */
1591 bcnrc_val
|= IXGBE_RTTBCNRC_RS_ENA
;
1595 * Set global transmit compensation time to the MMW_SIZE in RTTBCNRM
1596 * register. Typically MMW_SIZE=0x014 if 9728-byte jumbo is supported
1597 * and 0x004 otherwise.
1599 switch (hw
->mac
.type
) {
1600 case ixgbe_mac_82599EB
:
1601 IXGBE_WRITE_REG(hw
, IXGBE_RTTBCNRM
, 0x4);
1603 case ixgbe_mac_X540
:
1604 IXGBE_WRITE_REG(hw
, IXGBE_RTTBCNRM
, 0x14);
1610 /* determine how many queues per pool based on VMDq mask */
1611 queues_per_pool
= __ALIGN_MASK(1, ~vmdq
->mask
);
1613 /* write value for all Tx queues belonging to VF */
1614 for (queue
= 0; queue
< queues_per_pool
; queue
++) {
1615 unsigned int reg_idx
= (vf
* queues_per_pool
) + queue
;
1617 IXGBE_WRITE_REG(hw
, IXGBE_RTTDQSEL
, reg_idx
);
1618 IXGBE_WRITE_REG(hw
, IXGBE_RTTBCNRC
, bcnrc_val
);
1622 void ixgbe_check_vf_rate_limit(struct ixgbe_adapter
*adapter
)
1626 /* VF Tx rate limit was not set */
1627 if (!adapter
->vf_rate_link_speed
)
1630 if (ixgbe_link_mbps(adapter
) != adapter
->vf_rate_link_speed
) {
1631 adapter
->vf_rate_link_speed
= 0;
1632 dev_info(&adapter
->pdev
->dev
,
1633 "Link speed has been changed. VF Transmit rate is disabled\n");
1636 for (i
= 0; i
< adapter
->num_vfs
; i
++) {
1637 if (!adapter
->vf_rate_link_speed
)
1638 adapter
->vfinfo
[i
].tx_rate
= 0;
1640 ixgbe_set_vf_rate_limit(adapter
, i
);
1644 int ixgbe_ndo_set_vf_bw(struct net_device
*netdev
, int vf
, int min_tx_rate
,
1647 struct ixgbe_adapter
*adapter
= netdev_priv(netdev
);
1650 /* verify VF is active */
1651 if (vf
>= adapter
->num_vfs
)
1654 /* verify link is up */
1655 if (!adapter
->link_up
)
1658 /* verify we are linked at 10Gbps */
1659 link_speed
= ixgbe_link_mbps(adapter
);
1660 if (link_speed
!= 10000)
1666 /* rate limit cannot be less than 10Mbs or greater than link speed */
1667 if (max_tx_rate
&& ((max_tx_rate
<= 10) || (max_tx_rate
> link_speed
)))
1671 adapter
->vf_rate_link_speed
= link_speed
;
1672 adapter
->vfinfo
[vf
].tx_rate
= max_tx_rate
;
1674 /* update hardware configuration */
1675 ixgbe_set_vf_rate_limit(adapter
, vf
);
1680 int ixgbe_ndo_set_vf_spoofchk(struct net_device
*netdev
, int vf
, bool setting
)
1682 struct ixgbe_adapter
*adapter
= netdev_priv(netdev
);
1683 struct ixgbe_hw
*hw
= &adapter
->hw
;
1685 if (vf
>= adapter
->num_vfs
)
1688 adapter
->vfinfo
[vf
].spoofchk_enabled
= setting
;
1690 /* configure MAC spoofing */
1691 hw
->mac
.ops
.set_mac_anti_spoofing(hw
, setting
, vf
);
1693 /* configure VLAN spoofing */
1694 hw
->mac
.ops
.set_vlan_anti_spoofing(hw
, setting
, vf
);
1696 /* Ensure LLDP and FC is set for Ethertype Antispoofing if we will be
1697 * calling set_ethertype_anti_spoofing for each VF in loop below
1699 if (hw
->mac
.ops
.set_ethertype_anti_spoofing
) {
1700 IXGBE_WRITE_REG(hw
, IXGBE_ETQF(IXGBE_ETQF_FILTER_LLDP
),
1701 (IXGBE_ETQF_FILTER_EN
|
1702 IXGBE_ETQF_TX_ANTISPOOF
|
1705 IXGBE_WRITE_REG(hw
, IXGBE_ETQF(IXGBE_ETQF_FILTER_FC
),
1706 (IXGBE_ETQF_FILTER_EN
|
1707 IXGBE_ETQF_TX_ANTISPOOF
|
1710 hw
->mac
.ops
.set_ethertype_anti_spoofing(hw
, setting
, vf
);
1717 * ixgbe_set_vf_link_state - Set link state
1718 * @adapter: Pointer to adapter struct
1719 * @vf: VF identifier
1720 * @state: required link state
1722 * Set a link force state on/off a single vf
1724 void ixgbe_set_vf_link_state(struct ixgbe_adapter
*adapter
, int vf
, int state
)
1726 adapter
->vfinfo
[vf
].link_state
= state
;
1729 case IFLA_VF_LINK_STATE_AUTO
:
1730 if (test_bit(__IXGBE_DOWN
, &adapter
->state
))
1731 adapter
->vfinfo
[vf
].link_enable
= false;
1733 adapter
->vfinfo
[vf
].link_enable
= true;
1735 case IFLA_VF_LINK_STATE_ENABLE
:
1736 adapter
->vfinfo
[vf
].link_enable
= true;
1738 case IFLA_VF_LINK_STATE_DISABLE
:
1739 adapter
->vfinfo
[vf
].link_enable
= false;
1743 ixgbe_set_vf_rx_tx(adapter
, vf
);
1745 /* restart the VF */
1746 adapter
->vfinfo
[vf
].clear_to_send
= false;
1747 ixgbe_ping_vf(adapter
, vf
);
1751 * ixgbe_ndo_set_vf_link_state - Set link state
1752 * @netdev: network interface device structure
1753 * @vf: VF identifier
1754 * @state: required link state
1756 * Set the link state of a specified VF, regardless of physical link state
1758 int ixgbe_ndo_set_vf_link_state(struct net_device
*netdev
, int vf
, int state
)
1760 struct ixgbe_adapter
*adapter
= netdev_priv(netdev
);
1763 if (vf
< 0 || vf
>= adapter
->num_vfs
) {
1764 dev_err(&adapter
->pdev
->dev
,
1765 "NDO set VF link - invalid VF identifier %d\n", vf
);
1770 case IFLA_VF_LINK_STATE_ENABLE
:
1771 dev_info(&adapter
->pdev
->dev
,
1772 "NDO set VF %d link state %d - not supported\n",
1775 case IFLA_VF_LINK_STATE_DISABLE
:
1776 dev_info(&adapter
->pdev
->dev
,
1777 "NDO set VF %d link state disable\n", vf
);
1778 ixgbe_set_vf_link_state(adapter
, vf
, state
);
1780 case IFLA_VF_LINK_STATE_AUTO
:
1781 dev_info(&adapter
->pdev
->dev
,
1782 "NDO set VF %d link state auto\n", vf
);
1783 ixgbe_set_vf_link_state(adapter
, vf
, state
);
1786 dev_err(&adapter
->pdev
->dev
,
1787 "NDO set VF %d - invalid link state %d\n", vf
, state
);
1794 int ixgbe_ndo_set_vf_rss_query_en(struct net_device
*netdev
, int vf
,
1797 struct ixgbe_adapter
*adapter
= netdev_priv(netdev
);
1799 /* This operation is currently supported only for 82599 and x540
1802 if (adapter
->hw
.mac
.type
< ixgbe_mac_82599EB
||
1803 adapter
->hw
.mac
.type
>= ixgbe_mac_X550
)
1806 if (vf
>= adapter
->num_vfs
)
1809 adapter
->vfinfo
[vf
].rss_query_enabled
= setting
;
1814 int ixgbe_ndo_set_vf_trust(struct net_device
*netdev
, int vf
, bool setting
)
1816 struct ixgbe_adapter
*adapter
= netdev_priv(netdev
);
1818 if (vf
>= adapter
->num_vfs
)
1822 if (adapter
->vfinfo
[vf
].trusted
== setting
)
1825 adapter
->vfinfo
[vf
].trusted
= setting
;
1827 /* reset VF to reconfigure features */
1828 adapter
->vfinfo
[vf
].clear_to_send
= false;
1829 ixgbe_ping_vf(adapter
, vf
);
1831 e_info(drv
, "VF %u is %strusted\n", vf
, setting
? "" : "not ");
1836 int ixgbe_ndo_get_vf_config(struct net_device
*netdev
,
1837 int vf
, struct ifla_vf_info
*ivi
)
1839 struct ixgbe_adapter
*adapter
= netdev_priv(netdev
);
1840 if (vf
>= adapter
->num_vfs
)
1843 memcpy(&ivi
->mac
, adapter
->vfinfo
[vf
].vf_mac_addresses
, ETH_ALEN
);
1844 ivi
->max_tx_rate
= adapter
->vfinfo
[vf
].tx_rate
;
1845 ivi
->min_tx_rate
= 0;
1846 ivi
->vlan
= adapter
->vfinfo
[vf
].pf_vlan
;
1847 ivi
->qos
= adapter
->vfinfo
[vf
].pf_qos
;
1848 ivi
->spoofchk
= adapter
->vfinfo
[vf
].spoofchk_enabled
;
1849 ivi
->rss_query_en
= adapter
->vfinfo
[vf
].rss_query_enabled
;
1850 ivi
->trusted
= adapter
->vfinfo
[vf
].trusted
;
1851 ivi
->linkstate
= adapter
->vfinfo
[vf
].link_state
;