1 /*******************************************************************************
3 Intel 10 Gigabit PCI Express Linux driver
4 Copyright(c) 1999 - 2015 Intel Corporation.
6 This program is free software; you can redistribute it and/or modify it
7 under the terms and conditions of the GNU General Public License,
8 version 2, as published by the Free Software Foundation.
10 This program is distributed in the hope it will be useful, but WITHOUT
11 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
12 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
15 You should have received a copy of the GNU General Public License along with
16 this program; if not, write to the Free Software Foundation, Inc.,
17 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
19 The full GNU General Public License is included in this distribution in
20 the file called "COPYING".
23 Linux NICS <linux.nics@intel.com>
24 e1000-devel Mailing List <e1000-devel@lists.sourceforge.net>
25 Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
27 *******************************************************************************/
29 #include <linux/types.h>
30 #include <linux/module.h>
31 #include <linux/pci.h>
32 #include <linux/netdevice.h>
33 #include <linux/vmalloc.h>
34 #include <linux/string.h>
37 #include <linux/tcp.h>
38 #include <linux/ipv6.h>
39 #include <linux/if_bridge.h>
40 #ifdef NETIF_F_HW_VLAN_CTAG_TX
41 #include <linux/if_vlan.h>
45 #include "ixgbe_type.h"
46 #include "ixgbe_sriov.h"
49 static int __ixgbe_enable_sriov(struct ixgbe_adapter
*adapter
)
51 struct ixgbe_hw
*hw
= &adapter
->hw
;
52 int num_vf_macvlans
, i
;
53 struct vf_macvlans
*mv_list
;
55 adapter
->flags
|= IXGBE_FLAG_SRIOV_ENABLED
;
56 e_info(probe
, "SR-IOV enabled with %d VFs\n", adapter
->num_vfs
);
58 /* Enable VMDq flag so device will be set in VM mode */
59 adapter
->flags
|= IXGBE_FLAG_VMDQ_ENABLED
;
60 if (!adapter
->ring_feature
[RING_F_VMDQ
].limit
)
61 adapter
->ring_feature
[RING_F_VMDQ
].limit
= 1;
62 adapter
->ring_feature
[RING_F_VMDQ
].offset
= adapter
->num_vfs
;
64 num_vf_macvlans
= hw
->mac
.num_rar_entries
-
65 (IXGBE_MAX_PF_MACVLANS
+ 1 + adapter
->num_vfs
);
67 adapter
->mv_list
= mv_list
= kcalloc(num_vf_macvlans
,
68 sizeof(struct vf_macvlans
),
71 /* Initialize list of VF macvlans */
72 INIT_LIST_HEAD(&adapter
->vf_mvs
.l
);
73 for (i
= 0; i
< num_vf_macvlans
; i
++) {
76 list_add(&mv_list
->l
, &adapter
->vf_mvs
.l
);
81 /* Initialize default switching mode VEB */
82 IXGBE_WRITE_REG(hw
, IXGBE_PFDTXGSWC
, IXGBE_PFDTXGSWC_VT_LBEN
);
83 adapter
->bridge_mode
= BRIDGE_MODE_VEB
;
85 /* If call to enable VFs succeeded then allocate memory
86 * for per VF control structures.
89 kcalloc(adapter
->num_vfs
,
90 sizeof(struct vf_data_storage
), GFP_KERNEL
);
91 if (adapter
->vfinfo
) {
92 /* limit trafffic classes based on VFs enabled */
93 if ((adapter
->hw
.mac
.type
== ixgbe_mac_82599EB
) &&
94 (adapter
->num_vfs
< 16)) {
95 adapter
->dcb_cfg
.num_tcs
.pg_tcs
= MAX_TRAFFIC_CLASS
;
96 adapter
->dcb_cfg
.num_tcs
.pfc_tcs
= MAX_TRAFFIC_CLASS
;
97 } else if (adapter
->num_vfs
< 32) {
98 adapter
->dcb_cfg
.num_tcs
.pg_tcs
= 4;
99 adapter
->dcb_cfg
.num_tcs
.pfc_tcs
= 4;
101 adapter
->dcb_cfg
.num_tcs
.pg_tcs
= 1;
102 adapter
->dcb_cfg
.num_tcs
.pfc_tcs
= 1;
105 /* Disable RSC when in SR-IOV mode */
106 adapter
->flags2
&= ~(IXGBE_FLAG2_RSC_CAPABLE
|
107 IXGBE_FLAG2_RSC_ENABLED
);
109 for (i
= 0; i
< adapter
->num_vfs
; i
++) {
110 /* enable spoof checking for all VFs */
111 adapter
->vfinfo
[i
].spoofchk_enabled
= true;
113 /* We support VF RSS querying only for 82599 and x540
114 * devices at the moment. These devices share RSS
115 * indirection table and RSS hash key with PF therefore
116 * we want to disable the querying by default.
118 adapter
->vfinfo
[i
].rss_query_enabled
= 0;
120 /* Untrust all VFs */
121 adapter
->vfinfo
[i
].trusted
= false;
123 /* set the default xcast mode */
124 adapter
->vfinfo
[i
].xcast_mode
= IXGBEVF_XCAST_MODE_NONE
;
134 * ixgbe_get_vfs - Find and take references to all vf devices
135 * @adapter: Pointer to adapter struct
137 static void ixgbe_get_vfs(struct ixgbe_adapter
*adapter
)
139 struct pci_dev
*pdev
= adapter
->pdev
;
140 u16 vendor
= pdev
->vendor
;
141 struct pci_dev
*vfdev
;
146 pos
= pci_find_ext_capability(pdev
, PCI_EXT_CAP_ID_SRIOV
);
149 pci_read_config_word(pdev
, pos
+ PCI_SRIOV_VF_DID
, &vf_id
);
151 vfdev
= pci_get_device(vendor
, vf_id
, NULL
);
152 for (; vfdev
; vfdev
= pci_get_device(vendor
, vf_id
, vfdev
)) {
153 if (!vfdev
->is_virtfn
)
155 if (vfdev
->physfn
!= pdev
)
157 if (vf
>= adapter
->num_vfs
)
160 adapter
->vfinfo
[vf
].vfdev
= vfdev
;
165 /* Note this function is called when the user wants to enable SR-IOV
166 * VFs using the now deprecated module parameter
168 void ixgbe_enable_sriov(struct ixgbe_adapter
*adapter
)
170 int pre_existing_vfs
= 0;
172 pre_existing_vfs
= pci_num_vf(adapter
->pdev
);
173 if (!pre_existing_vfs
&& !adapter
->num_vfs
)
176 /* If there are pre-existing VFs then we have to force
177 * use of that many - over ride any module parameter value.
178 * This may result from the user unloading the PF driver
179 * while VFs were assigned to guest VMs or because the VFs
180 * have been created via the new PCI SR-IOV sysfs interface.
182 if (pre_existing_vfs
) {
183 adapter
->num_vfs
= pre_existing_vfs
;
184 dev_warn(&adapter
->pdev
->dev
,
185 "Virtual Functions already enabled for this device - Please reload all VF drivers to avoid spoofed packet errors\n");
189 * The 82599 supports up to 64 VFs per physical function
190 * but this implementation limits allocation to 63 so that
191 * basic networking resources are still available to the
192 * physical function. If the user requests greater than
193 * 63 VFs then it is an error - reset to default of zero.
195 adapter
->num_vfs
= min_t(unsigned int, adapter
->num_vfs
, IXGBE_MAX_VFS_DRV_LIMIT
);
197 err
= pci_enable_sriov(adapter
->pdev
, adapter
->num_vfs
);
199 e_err(probe
, "Failed to enable PCI sriov: %d\n", err
);
200 adapter
->num_vfs
= 0;
205 if (!__ixgbe_enable_sriov(adapter
)) {
206 ixgbe_get_vfs(adapter
);
210 /* If we have gotten to this point then there is no memory available
211 * to manage the VF devices - print message and bail.
213 e_err(probe
, "Unable to allocate memory for VF Data Storage - "
215 ixgbe_disable_sriov(adapter
);
218 #endif /* #ifdef CONFIG_PCI_IOV */
219 int ixgbe_disable_sriov(struct ixgbe_adapter
*adapter
)
221 unsigned int num_vfs
= adapter
->num_vfs
, vf
;
222 struct ixgbe_hw
*hw
= &adapter
->hw
;
227 /* set num VFs to 0 to prevent access to vfinfo */
228 adapter
->num_vfs
= 0;
230 /* put the reference to all of the vf devices */
231 for (vf
= 0; vf
< num_vfs
; ++vf
) {
232 struct pci_dev
*vfdev
= adapter
->vfinfo
[vf
].vfdev
;
236 adapter
->vfinfo
[vf
].vfdev
= NULL
;
240 /* free VF control structures */
241 kfree(adapter
->vfinfo
);
242 adapter
->vfinfo
= NULL
;
244 /* free macvlan list */
245 kfree(adapter
->mv_list
);
246 adapter
->mv_list
= NULL
;
248 /* if SR-IOV is already disabled then there is nothing to do */
249 if (!(adapter
->flags
& IXGBE_FLAG_SRIOV_ENABLED
))
252 #ifdef CONFIG_PCI_IOV
254 * If our VFs are assigned we cannot shut down SR-IOV
255 * without causing issues, so just leave the hardware
256 * available but disabled
258 if (pci_vfs_assigned(adapter
->pdev
)) {
259 e_dev_warn("Unloading driver while VFs are assigned - VFs will not be deallocated\n");
262 /* disable iov and allow time for transactions to clear */
263 pci_disable_sriov(adapter
->pdev
);
266 /* turn off device IOV mode */
267 IXGBE_WRITE_REG(hw
, IXGBE_GCR_EXT
, 0);
268 gpie
= IXGBE_READ_REG(hw
, IXGBE_GPIE
);
269 gpie
&= ~IXGBE_GPIE_VTMODE_MASK
;
270 IXGBE_WRITE_REG(hw
, IXGBE_GPIE
, gpie
);
272 /* set default pool back to 0 */
273 vmdctl
= IXGBE_READ_REG(hw
, IXGBE_VT_CTL
);
274 vmdctl
&= ~IXGBE_VT_CTL_POOL_MASK
;
275 IXGBE_WRITE_REG(hw
, IXGBE_VT_CTL
, vmdctl
);
276 IXGBE_WRITE_FLUSH(hw
);
278 /* Disable VMDq flag so device will be set in VM mode */
279 if (adapter
->ring_feature
[RING_F_VMDQ
].limit
== 1) {
280 adapter
->flags
&= ~IXGBE_FLAG_VMDQ_ENABLED
;
281 adapter
->flags
&= ~IXGBE_FLAG_SRIOV_ENABLED
;
282 rss
= min_t(int, ixgbe_max_rss_indices(adapter
),
285 rss
= min_t(int, IXGBE_MAX_L2A_QUEUES
, num_online_cpus());
288 adapter
->ring_feature
[RING_F_VMDQ
].offset
= 0;
289 adapter
->ring_feature
[RING_F_RSS
].limit
= rss
;
291 /* take a breather then clean up driver data */
296 static int ixgbe_pci_sriov_enable(struct pci_dev
*dev
, int num_vfs
)
298 #ifdef CONFIG_PCI_IOV
299 struct ixgbe_adapter
*adapter
= pci_get_drvdata(dev
);
302 int pre_existing_vfs
= pci_num_vf(dev
);
304 if (pre_existing_vfs
&& pre_existing_vfs
!= num_vfs
)
305 err
= ixgbe_disable_sriov(adapter
);
306 else if (pre_existing_vfs
&& pre_existing_vfs
== num_vfs
)
312 /* While the SR-IOV capability structure reports total VFs to be 64,
313 * we have to limit the actual number allocated based on two factors.
314 * First, we reserve some transmit/receive resources for the PF.
315 * Second, VMDQ also uses the same pools that SR-IOV does. We need to
316 * account for this, so that we don't accidentally allocate more VFs
317 * than we have available pools. The PCI bus driver already checks for
318 * other values out of range.
320 if ((num_vfs
+ adapter
->num_rx_pools
) > IXGBE_MAX_VF_FUNCTIONS
)
323 adapter
->num_vfs
= num_vfs
;
325 err
= __ixgbe_enable_sriov(adapter
);
329 for (i
= 0; i
< adapter
->num_vfs
; i
++)
330 ixgbe_vf_configuration(dev
, (i
| 0x10000000));
332 err
= pci_enable_sriov(dev
, num_vfs
);
334 e_dev_warn("Failed to enable PCI sriov: %d\n", err
);
337 ixgbe_get_vfs(adapter
);
338 ixgbe_sriov_reinit(adapter
);
346 static int ixgbe_pci_sriov_disable(struct pci_dev
*dev
)
348 struct ixgbe_adapter
*adapter
= pci_get_drvdata(dev
);
350 #ifdef CONFIG_PCI_IOV
351 u32 current_flags
= adapter
->flags
;
354 err
= ixgbe_disable_sriov(adapter
);
356 /* Only reinit if no error and state changed */
357 #ifdef CONFIG_PCI_IOV
358 if (!err
&& current_flags
!= adapter
->flags
)
359 ixgbe_sriov_reinit(adapter
);
365 int ixgbe_pci_sriov_configure(struct pci_dev
*dev
, int num_vfs
)
368 return ixgbe_pci_sriov_disable(dev
);
370 return ixgbe_pci_sriov_enable(dev
, num_vfs
);
373 static int ixgbe_set_vf_multicasts(struct ixgbe_adapter
*adapter
,
376 int entries
= (msgbuf
[0] & IXGBE_VT_MSGINFO_MASK
)
377 >> IXGBE_VT_MSGINFO_SHIFT
;
378 u16
*hash_list
= (u16
*)&msgbuf
[1];
379 struct vf_data_storage
*vfinfo
= &adapter
->vfinfo
[vf
];
380 struct ixgbe_hw
*hw
= &adapter
->hw
;
385 u32 vmolr
= IXGBE_READ_REG(hw
, IXGBE_VMOLR(vf
));
387 /* only so many hash values supported */
388 entries
= min(entries
, IXGBE_MAX_VF_MC_ENTRIES
);
391 * salt away the number of multi cast addresses assigned
392 * to this VF for later use to restore when the PF multi cast
395 vfinfo
->num_vf_mc_hashes
= entries
;
398 * VFs are limited to using the MTA hash table for their multicast
401 for (i
= 0; i
< entries
; i
++) {
402 vfinfo
->vf_mc_hashes
[i
] = hash_list
[i
];
405 for (i
= 0; i
< vfinfo
->num_vf_mc_hashes
; i
++) {
406 vector_reg
= (vfinfo
->vf_mc_hashes
[i
] >> 5) & 0x7F;
407 vector_bit
= vfinfo
->vf_mc_hashes
[i
] & 0x1F;
408 mta_reg
= IXGBE_READ_REG(hw
, IXGBE_MTA(vector_reg
));
409 mta_reg
|= (1 << vector_bit
);
410 IXGBE_WRITE_REG(hw
, IXGBE_MTA(vector_reg
), mta_reg
);
412 vmolr
|= IXGBE_VMOLR_ROMPE
;
413 IXGBE_WRITE_REG(hw
, IXGBE_VMOLR(vf
), vmolr
);
418 #ifdef CONFIG_PCI_IOV
419 void ixgbe_restore_vf_multicasts(struct ixgbe_adapter
*adapter
)
421 struct ixgbe_hw
*hw
= &adapter
->hw
;
422 struct vf_data_storage
*vfinfo
;
428 for (i
= 0; i
< adapter
->num_vfs
; i
++) {
429 u32 vmolr
= IXGBE_READ_REG(hw
, IXGBE_VMOLR(i
));
430 vfinfo
= &adapter
->vfinfo
[i
];
431 for (j
= 0; j
< vfinfo
->num_vf_mc_hashes
; j
++) {
432 hw
->addr_ctrl
.mta_in_use
++;
433 vector_reg
= (vfinfo
->vf_mc_hashes
[j
] >> 5) & 0x7F;
434 vector_bit
= vfinfo
->vf_mc_hashes
[j
] & 0x1F;
435 mta_reg
= IXGBE_READ_REG(hw
, IXGBE_MTA(vector_reg
));
436 mta_reg
|= (1 << vector_bit
);
437 IXGBE_WRITE_REG(hw
, IXGBE_MTA(vector_reg
), mta_reg
);
440 if (vfinfo
->num_vf_mc_hashes
)
441 vmolr
|= IXGBE_VMOLR_ROMPE
;
443 vmolr
&= ~IXGBE_VMOLR_ROMPE
;
444 IXGBE_WRITE_REG(hw
, IXGBE_VMOLR(i
), vmolr
);
447 /* Restore any VF macvlans */
448 ixgbe_full_sync_mac_table(adapter
);
452 static int ixgbe_set_vf_vlan(struct ixgbe_adapter
*adapter
, int add
, int vid
,
455 struct ixgbe_hw
*hw
= &adapter
->hw
;
458 /* If VLAN overlaps with one the PF is currently monitoring make
459 * sure that we are able to allocate a VLVF entry. This may be
460 * redundant but it guarantees PF will maintain visibility to
463 if (add
&& test_bit(vid
, adapter
->active_vlans
)) {
464 err
= hw
->mac
.ops
.set_vfta(hw
, vid
, VMDQ_P(0), true, false);
469 err
= hw
->mac
.ops
.set_vfta(hw
, vid
, vf
, !!add
, false);
474 /* If we failed to add the VF VLAN or we are removing the VF VLAN
475 * we may need to drop the PF pool bit in order to allow us to free
476 * up the VLVF resources.
478 if (test_bit(vid
, adapter
->active_vlans
) ||
479 (adapter
->flags2
& IXGBE_FLAG2_VLAN_PROMISC
))
480 ixgbe_update_pf_promisc_vlvf(adapter
, vid
);
485 static s32
ixgbe_set_vf_lpe(struct ixgbe_adapter
*adapter
, u32
*msgbuf
, u32 vf
)
487 struct ixgbe_hw
*hw
= &adapter
->hw
;
488 int max_frame
= msgbuf
[1];
492 * For 82599EB we have to keep all PFs and VFs operating with
493 * the same max_frame value in order to avoid sending an oversize
494 * frame to a VF. In order to guarantee this is handled correctly
495 * for all cases we have several special exceptions to take into
496 * account before we can enable the VF for receive
498 if (adapter
->hw
.mac
.type
== ixgbe_mac_82599EB
) {
499 struct net_device
*dev
= adapter
->netdev
;
500 int pf_max_frame
= dev
->mtu
+ ETH_HLEN
;
501 u32 reg_offset
, vf_shift
, vfre
;
505 if (dev
->features
& NETIF_F_FCOE_MTU
)
506 pf_max_frame
= max_t(int, pf_max_frame
,
507 IXGBE_FCOE_JUMBO_FRAME_SIZE
);
509 #endif /* CONFIG_FCOE */
510 switch (adapter
->vfinfo
[vf
].vf_api
) {
511 case ixgbe_mbox_api_11
:
512 case ixgbe_mbox_api_12
:
514 * Version 1.1 supports jumbo frames on VFs if PF has
515 * jumbo frames enabled which means legacy VFs are
518 if (pf_max_frame
> ETH_FRAME_LEN
)
522 * If the PF or VF are running w/ jumbo frames enabled
523 * we need to shut down the VF Rx path as we cannot
524 * support jumbo frames on legacy VFs
526 if ((pf_max_frame
> ETH_FRAME_LEN
) ||
527 (max_frame
> (ETH_FRAME_LEN
+ ETH_FCS_LEN
)))
532 /* determine VF receive enable location */
534 reg_offset
= vf
/ 32;
536 /* enable or disable receive depending on error */
537 vfre
= IXGBE_READ_REG(hw
, IXGBE_VFRE(reg_offset
));
539 vfre
&= ~(1 << vf_shift
);
541 vfre
|= 1 << vf_shift
;
542 IXGBE_WRITE_REG(hw
, IXGBE_VFRE(reg_offset
), vfre
);
545 e_err(drv
, "VF max_frame %d out of range\n", max_frame
);
550 /* MTU < 68 is an error and causes problems on some kernels */
551 if (max_frame
> IXGBE_MAX_JUMBO_FRAME_SIZE
) {
552 e_err(drv
, "VF max_frame %d out of range\n", max_frame
);
556 /* pull current max frame size from hardware */
557 max_frs
= IXGBE_READ_REG(hw
, IXGBE_MAXFRS
);
558 max_frs
&= IXGBE_MHADD_MFS_MASK
;
559 max_frs
>>= IXGBE_MHADD_MFS_SHIFT
;
561 if (max_frs
< max_frame
) {
562 max_frs
= max_frame
<< IXGBE_MHADD_MFS_SHIFT
;
563 IXGBE_WRITE_REG(hw
, IXGBE_MAXFRS
, max_frs
);
566 e_info(hw
, "VF requests change max MTU to %d\n", max_frame
);
571 static void ixgbe_set_vmolr(struct ixgbe_hw
*hw
, u32 vf
, bool aupe
)
573 u32 vmolr
= IXGBE_READ_REG(hw
, IXGBE_VMOLR(vf
));
574 vmolr
|= IXGBE_VMOLR_BAM
;
576 vmolr
|= IXGBE_VMOLR_AUPE
;
578 vmolr
&= ~IXGBE_VMOLR_AUPE
;
579 IXGBE_WRITE_REG(hw
, IXGBE_VMOLR(vf
), vmolr
);
582 static void ixgbe_clear_vmvir(struct ixgbe_adapter
*adapter
, u32 vf
)
584 struct ixgbe_hw
*hw
= &adapter
->hw
;
586 IXGBE_WRITE_REG(hw
, IXGBE_VMVIR(vf
), 0);
589 static void ixgbe_clear_vf_vlans(struct ixgbe_adapter
*adapter
, u32 vf
)
591 struct ixgbe_hw
*hw
= &adapter
->hw
;
592 u32 vlvfb_mask
, pool_mask
, i
;
594 /* create mask for VF and other pools */
595 pool_mask
= ~(1 << (VMDQ_P(0) % 32));
596 vlvfb_mask
= 1 << (vf
% 32);
598 /* post increment loop, covers VLVF_ENTRIES - 1 to 0 */
599 for (i
= IXGBE_VLVF_ENTRIES
; i
--;) {
600 u32 bits
[2], vlvfb
, vid
, vfta
, vlvf
;
601 u32 word
= i
* 2 + vf
/ 32;
604 vlvfb
= IXGBE_READ_REG(hw
, IXGBE_VLVFB(word
));
606 /* if our bit isn't set we can skip it */
607 if (!(vlvfb
& vlvfb_mask
))
610 /* clear our bit from vlvfb */
613 /* create 64b mask to chedk to see if we should clear VLVF */
614 bits
[word
% 2] = vlvfb
;
615 bits
[~word
% 2] = IXGBE_READ_REG(hw
, IXGBE_VLVFB(word
^ 1));
617 /* if other pools are present, just remove ourselves */
618 if (bits
[(VMDQ_P(0) / 32) ^ 1] ||
619 (bits
[VMDQ_P(0) / 32] & pool_mask
))
622 /* if PF is present, leave VFTA */
623 if (bits
[0] || bits
[1])
626 /* if we cannot determine VLAN just remove ourselves */
627 vlvf
= IXGBE_READ_REG(hw
, IXGBE_VLVF(i
));
631 vid
= vlvf
& VLAN_VID_MASK
;
632 mask
= 1 << (vid
% 32);
634 /* clear bit from VFTA */
635 vfta
= IXGBE_READ_REG(hw
, IXGBE_VFTA(vid
/ 32));
637 IXGBE_WRITE_REG(hw
, IXGBE_VFTA(vid
/ 32), vfta
^ mask
);
639 /* clear POOL selection enable */
640 IXGBE_WRITE_REG(hw
, IXGBE_VLVF(i
), 0);
642 if (!(adapter
->flags2
& IXGBE_FLAG2_VLAN_PROMISC
))
645 /* clear pool bits */
646 IXGBE_WRITE_REG(hw
, IXGBE_VLVFB(word
), vlvfb
);
650 static inline void ixgbe_vf_reset_event(struct ixgbe_adapter
*adapter
, u32 vf
)
652 struct ixgbe_hw
*hw
= &adapter
->hw
;
653 struct vf_data_storage
*vfinfo
= &adapter
->vfinfo
[vf
];
654 u8 num_tcs
= netdev_get_num_tc(adapter
->netdev
);
656 /* remove VLAN filters beloning to this VF */
657 ixgbe_clear_vf_vlans(adapter
, vf
);
659 /* add back PF assigned VLAN or VLAN 0 */
660 ixgbe_set_vf_vlan(adapter
, true, vfinfo
->pf_vlan
, vf
);
662 /* reset offloads to defaults */
663 ixgbe_set_vmolr(hw
, vf
, !vfinfo
->pf_vlan
);
665 /* set outgoing tags for VFs */
666 if (!vfinfo
->pf_vlan
&& !vfinfo
->pf_qos
&& !num_tcs
) {
667 ixgbe_clear_vmvir(adapter
, vf
);
669 if (vfinfo
->pf_qos
|| !num_tcs
)
670 ixgbe_set_vmvir(adapter
, vfinfo
->pf_vlan
,
673 ixgbe_set_vmvir(adapter
, vfinfo
->pf_vlan
,
674 adapter
->default_up
, vf
);
676 if (vfinfo
->spoofchk_enabled
)
677 hw
->mac
.ops
.set_vlan_anti_spoofing(hw
, true, vf
);
680 /* reset multicast table array for vf */
681 adapter
->vfinfo
[vf
].num_vf_mc_hashes
= 0;
683 /* Flush and reset the mta with the new values */
684 ixgbe_set_rx_mode(adapter
->netdev
);
686 ixgbe_del_mac_filter(adapter
, adapter
->vfinfo
[vf
].vf_mac_addresses
, vf
);
688 /* reset VF api back to unknown */
689 adapter
->vfinfo
[vf
].vf_api
= ixgbe_mbox_api_10
;
692 static int ixgbe_set_vf_mac(struct ixgbe_adapter
*adapter
,
693 int vf
, unsigned char *mac_addr
)
695 ixgbe_del_mac_filter(adapter
, adapter
->vfinfo
[vf
].vf_mac_addresses
, vf
);
696 memcpy(adapter
->vfinfo
[vf
].vf_mac_addresses
, mac_addr
, ETH_ALEN
);
697 ixgbe_add_mac_filter(adapter
, adapter
->vfinfo
[vf
].vf_mac_addresses
, vf
);
702 static int ixgbe_set_vf_macvlan(struct ixgbe_adapter
*adapter
,
703 int vf
, int index
, unsigned char *mac_addr
)
705 struct list_head
*pos
;
706 struct vf_macvlans
*entry
;
709 list_for_each(pos
, &adapter
->vf_mvs
.l
) {
710 entry
= list_entry(pos
, struct vf_macvlans
, l
);
711 if (entry
->vf
== vf
) {
714 entry
->is_macvlan
= false;
715 ixgbe_del_mac_filter(adapter
,
716 entry
->vf_macvlan
, vf
);
722 * If index was zero then we were asked to clear the uc list
723 * for the VF. We're done.
730 list_for_each(pos
, &adapter
->vf_mvs
.l
) {
731 entry
= list_entry(pos
, struct vf_macvlans
, l
);
737 * If we traversed the entire list and didn't find a free entry
738 * then we're out of space on the RAR table. Also entry may
739 * be NULL because the original memory allocation for the list
740 * failed, which is not fatal but does mean we can't support
741 * VF requests for MACVLAN because we couldn't allocate
742 * memory for the list management required.
744 if (!entry
|| !entry
->free
)
748 entry
->is_macvlan
= true;
750 memcpy(entry
->vf_macvlan
, mac_addr
, ETH_ALEN
);
752 ixgbe_add_mac_filter(adapter
, mac_addr
, vf
);
757 int ixgbe_vf_configuration(struct pci_dev
*pdev
, unsigned int event_mask
)
759 struct ixgbe_adapter
*adapter
= pci_get_drvdata(pdev
);
760 unsigned int vfn
= (event_mask
& 0x3f);
762 bool enable
= ((event_mask
& 0x10000000U
) != 0);
765 eth_zero_addr(adapter
->vfinfo
[vfn
].vf_mac_addresses
);
770 static inline void ixgbe_write_qde(struct ixgbe_adapter
*adapter
, u32 vf
,
773 struct ixgbe_hw
*hw
= &adapter
->hw
;
774 struct ixgbe_ring_feature
*vmdq
= &adapter
->ring_feature
[RING_F_VMDQ
];
775 u32 q_per_pool
= __ALIGN_MASK(1, ~vmdq
->mask
);
778 for (i
= vf
* q_per_pool
; i
< ((vf
+ 1) * q_per_pool
); i
++) {
781 /* flush previous write */
782 IXGBE_WRITE_FLUSH(hw
);
784 /* indicate to hardware that we want to set drop enable */
785 reg
= IXGBE_QDE_WRITE
| IXGBE_QDE_ENABLE
;
786 reg
|= i
<< IXGBE_QDE_IDX_SHIFT
;
787 IXGBE_WRITE_REG(hw
, IXGBE_QDE
, reg
);
791 static int ixgbe_vf_reset_msg(struct ixgbe_adapter
*adapter
, u32 vf
)
793 struct ixgbe_ring_feature
*vmdq
= &adapter
->ring_feature
[RING_F_VMDQ
];
794 struct ixgbe_hw
*hw
= &adapter
->hw
;
795 unsigned char *vf_mac
= adapter
->vfinfo
[vf
].vf_mac_addresses
;
796 u32 reg
, reg_offset
, vf_shift
;
797 u32 msgbuf
[4] = {0, 0, 0, 0};
798 u8
*addr
= (u8
*)(&msgbuf
[1]);
799 u32 q_per_pool
= __ALIGN_MASK(1, ~vmdq
->mask
);
802 e_info(probe
, "VF Reset msg received from vf %d\n", vf
);
804 /* reset the filters for the device */
805 ixgbe_vf_reset_event(adapter
, vf
);
807 /* set vf mac address */
808 if (!is_zero_ether_addr(vf_mac
))
809 ixgbe_set_vf_mac(adapter
, vf
, vf_mac
);
812 reg_offset
= vf
/ 32;
814 /* enable transmit for vf */
815 reg
= IXGBE_READ_REG(hw
, IXGBE_VFTE(reg_offset
));
816 reg
|= 1 << vf_shift
;
817 IXGBE_WRITE_REG(hw
, IXGBE_VFTE(reg_offset
), reg
);
819 /* force drop enable for all VF Rx queues */
820 ixgbe_write_qde(adapter
, vf
, IXGBE_QDE_ENABLE
);
822 /* enable receive for vf */
823 reg
= IXGBE_READ_REG(hw
, IXGBE_VFRE(reg_offset
));
824 reg
|= 1 << vf_shift
;
826 * The 82599 cannot support a mix of jumbo and non-jumbo PF/VFs.
827 * For more info take a look at ixgbe_set_vf_lpe
829 if (adapter
->hw
.mac
.type
== ixgbe_mac_82599EB
) {
830 struct net_device
*dev
= adapter
->netdev
;
831 int pf_max_frame
= dev
->mtu
+ ETH_HLEN
;
834 if (dev
->features
& NETIF_F_FCOE_MTU
)
835 pf_max_frame
= max_t(int, pf_max_frame
,
836 IXGBE_FCOE_JUMBO_FRAME_SIZE
);
838 #endif /* CONFIG_FCOE */
839 if (pf_max_frame
> ETH_FRAME_LEN
)
840 reg
&= ~(1 << vf_shift
);
842 IXGBE_WRITE_REG(hw
, IXGBE_VFRE(reg_offset
), reg
);
844 /* enable VF mailbox for further messages */
845 adapter
->vfinfo
[vf
].clear_to_send
= true;
847 /* Enable counting of spoofed packets in the SSVPC register */
848 reg
= IXGBE_READ_REG(hw
, IXGBE_VMECM(reg_offset
));
849 reg
|= (1 << vf_shift
);
850 IXGBE_WRITE_REG(hw
, IXGBE_VMECM(reg_offset
), reg
);
853 * Reset the VFs TDWBAL and TDWBAH registers
854 * which are not cleared by an FLR
856 for (i
= 0; i
< q_per_pool
; i
++) {
857 IXGBE_WRITE_REG(hw
, IXGBE_PVFTDWBAHn(q_per_pool
, vf
, i
), 0);
858 IXGBE_WRITE_REG(hw
, IXGBE_PVFTDWBALn(q_per_pool
, vf
, i
), 0);
861 /* reply to reset with ack and vf mac address */
862 msgbuf
[0] = IXGBE_VF_RESET
;
863 if (!is_zero_ether_addr(vf_mac
)) {
864 msgbuf
[0] |= IXGBE_VT_MSGTYPE_ACK
;
865 memcpy(addr
, vf_mac
, ETH_ALEN
);
867 msgbuf
[0] |= IXGBE_VT_MSGTYPE_NACK
;
868 dev_warn(&adapter
->pdev
->dev
,
869 "VF %d has no MAC address assigned, you may have to assign one manually\n",
874 * Piggyback the multicast filter type so VF can compute the
877 msgbuf
[3] = hw
->mac
.mc_filter_type
;
878 ixgbe_write_mbx(hw
, msgbuf
, IXGBE_VF_PERMADDR_MSG_LEN
, vf
);
883 static int ixgbe_set_vf_mac_addr(struct ixgbe_adapter
*adapter
,
886 u8
*new_mac
= ((u8
*)(&msgbuf
[1]));
888 if (!is_valid_ether_addr(new_mac
)) {
889 e_warn(drv
, "VF %d attempted to set invalid mac\n", vf
);
893 if (adapter
->vfinfo
[vf
].pf_set_mac
&& !adapter
->vfinfo
[vf
].trusted
&&
894 !ether_addr_equal(adapter
->vfinfo
[vf
].vf_mac_addresses
, new_mac
)) {
896 "VF %d attempted to override administratively set MAC address\n"
897 "Reload the VF driver to resume operations\n",
902 return ixgbe_set_vf_mac(adapter
, vf
, new_mac
) < 0;
905 static int ixgbe_set_vf_vlan_msg(struct ixgbe_adapter
*adapter
,
908 u32 add
= (msgbuf
[0] & IXGBE_VT_MSGINFO_MASK
) >> IXGBE_VT_MSGINFO_SHIFT
;
909 u32 vid
= (msgbuf
[1] & IXGBE_VLVF_VLANID_MASK
);
910 u8 tcs
= netdev_get_num_tc(adapter
->netdev
);
911 struct ixgbe_hw
*hw
= &adapter
->hw
;
914 if (adapter
->vfinfo
[vf
].pf_vlan
|| tcs
) {
916 "VF %d attempted to override administratively set VLAN configuration\n"
917 "Reload the VF driver to resume operations\n",
922 /* VLAN 0 is a special case, don't allow it to be removed */
926 err
= ixgbe_set_vf_vlan(adapter
, add
, vid
, vf
);
930 if (adapter
->vfinfo
[vf
].spoofchk_enabled
)
931 hw
->mac
.ops
.set_vlan_anti_spoofing(hw
, true, vf
);
934 adapter
->vfinfo
[vf
].vlan_count
++;
935 else if (adapter
->vfinfo
[vf
].vlan_count
)
936 adapter
->vfinfo
[vf
].vlan_count
--;
941 static int ixgbe_set_vf_macvlan_msg(struct ixgbe_adapter
*adapter
,
944 u8
*new_mac
= ((u8
*)(&msgbuf
[1]));
945 int index
= (msgbuf
[0] & IXGBE_VT_MSGINFO_MASK
) >>
946 IXGBE_VT_MSGINFO_SHIFT
;
949 if (adapter
->vfinfo
[vf
].pf_set_mac
&& index
> 0) {
951 "VF %d requested MACVLAN filter but is administratively denied\n",
956 /* An non-zero index indicates the VF is setting a filter */
958 if (!is_valid_ether_addr(new_mac
)) {
959 e_warn(drv
, "VF %d attempted to set invalid mac\n", vf
);
964 * If the VF is allowed to set MAC filters then turn off
965 * anti-spoofing to avoid false positives.
967 if (adapter
->vfinfo
[vf
].spoofchk_enabled
)
968 ixgbe_ndo_set_vf_spoofchk(adapter
->netdev
, vf
, false);
971 err
= ixgbe_set_vf_macvlan(adapter
, vf
, index
, new_mac
);
974 "VF %d has requested a MACVLAN filter but there is no space for it\n",
980 static int ixgbe_negotiate_vf_api(struct ixgbe_adapter
*adapter
,
986 case ixgbe_mbox_api_10
:
987 case ixgbe_mbox_api_11
:
988 case ixgbe_mbox_api_12
:
989 adapter
->vfinfo
[vf
].vf_api
= api
;
995 e_info(drv
, "VF %d requested invalid api version %u\n", vf
, api
);
1000 static int ixgbe_get_vf_queues(struct ixgbe_adapter
*adapter
,
1001 u32
*msgbuf
, u32 vf
)
1003 struct net_device
*dev
= adapter
->netdev
;
1004 struct ixgbe_ring_feature
*vmdq
= &adapter
->ring_feature
[RING_F_VMDQ
];
1005 unsigned int default_tc
= 0;
1006 u8 num_tcs
= netdev_get_num_tc(dev
);
1008 /* verify the PF is supporting the correct APIs */
1009 switch (adapter
->vfinfo
[vf
].vf_api
) {
1010 case ixgbe_mbox_api_20
:
1011 case ixgbe_mbox_api_11
:
1012 case ixgbe_mbox_api_12
:
1018 /* only allow 1 Tx queue for bandwidth limiting */
1019 msgbuf
[IXGBE_VF_TX_QUEUES
] = __ALIGN_MASK(1, ~vmdq
->mask
);
1020 msgbuf
[IXGBE_VF_RX_QUEUES
] = __ALIGN_MASK(1, ~vmdq
->mask
);
1022 /* if TCs > 1 determine which TC belongs to default user priority */
1024 default_tc
= netdev_get_prio_tc_map(dev
, adapter
->default_up
);
1026 /* notify VF of need for VLAN tag stripping, and correct queue */
1028 msgbuf
[IXGBE_VF_TRANS_VLAN
] = num_tcs
;
1029 else if (adapter
->vfinfo
[vf
].pf_vlan
|| adapter
->vfinfo
[vf
].pf_qos
)
1030 msgbuf
[IXGBE_VF_TRANS_VLAN
] = 1;
1032 msgbuf
[IXGBE_VF_TRANS_VLAN
] = 0;
1034 /* notify VF of default queue */
1035 msgbuf
[IXGBE_VF_DEF_QUEUE
] = default_tc
;
1040 static int ixgbe_get_vf_reta(struct ixgbe_adapter
*adapter
, u32
*msgbuf
, u32 vf
)
1043 u32
*out_buf
= &msgbuf
[1];
1044 const u8
*reta
= adapter
->rss_indir_tbl
;
1045 u32 reta_size
= ixgbe_rss_indir_tbl_entries(adapter
);
1047 /* Check if operation is permitted */
1048 if (!adapter
->vfinfo
[vf
].rss_query_enabled
)
1051 /* verify the PF is supporting the correct API */
1052 if (adapter
->vfinfo
[vf
].vf_api
!= ixgbe_mbox_api_12
)
1055 /* This mailbox command is supported (required) only for 82599 and x540
1056 * VFs which support up to 4 RSS queues. Therefore we will compress the
1057 * RETA by saving only 2 bits from each entry. This way we will be able
1058 * to transfer the whole RETA in a single mailbox operation.
1060 for (i
= 0; i
< reta_size
/ 16; i
++) {
1062 for (j
= 0; j
< 16; j
++)
1063 out_buf
[i
] |= (u32
)(reta
[16 * i
+ j
] & 0x3) << (2 * j
);
1069 static int ixgbe_get_vf_rss_key(struct ixgbe_adapter
*adapter
,
1070 u32
*msgbuf
, u32 vf
)
1072 u32
*rss_key
= &msgbuf
[1];
1074 /* Check if the operation is permitted */
1075 if (!adapter
->vfinfo
[vf
].rss_query_enabled
)
1078 /* verify the PF is supporting the correct API */
1079 if (adapter
->vfinfo
[vf
].vf_api
!= ixgbe_mbox_api_12
)
1082 memcpy(rss_key
, adapter
->rss_key
, sizeof(adapter
->rss_key
));
1087 static int ixgbe_update_vf_xcast_mode(struct ixgbe_adapter
*adapter
,
1088 u32
*msgbuf
, u32 vf
)
1090 struct ixgbe_hw
*hw
= &adapter
->hw
;
1091 int xcast_mode
= msgbuf
[1];
1092 u32 vmolr
, disable
, enable
;
1094 /* verify the PF is supporting the correct APIs */
1095 switch (adapter
->vfinfo
[vf
].vf_api
) {
1096 case ixgbe_mbox_api_12
:
1102 if (xcast_mode
> IXGBEVF_XCAST_MODE_MULTI
&&
1103 !adapter
->vfinfo
[vf
].trusted
) {
1104 xcast_mode
= IXGBEVF_XCAST_MODE_MULTI
;
1107 if (adapter
->vfinfo
[vf
].xcast_mode
== xcast_mode
)
1110 switch (xcast_mode
) {
1111 case IXGBEVF_XCAST_MODE_NONE
:
1112 disable
= IXGBE_VMOLR_BAM
| IXGBE_VMOLR_ROMPE
| IXGBE_VMOLR_MPE
;
1115 case IXGBEVF_XCAST_MODE_MULTI
:
1116 disable
= IXGBE_VMOLR_MPE
;
1117 enable
= IXGBE_VMOLR_BAM
| IXGBE_VMOLR_ROMPE
;
1119 case IXGBEVF_XCAST_MODE_ALLMULTI
:
1121 enable
= IXGBE_VMOLR_BAM
| IXGBE_VMOLR_ROMPE
| IXGBE_VMOLR_MPE
;
1127 vmolr
= IXGBE_READ_REG(hw
, IXGBE_VMOLR(vf
));
1130 IXGBE_WRITE_REG(hw
, IXGBE_VMOLR(vf
), vmolr
);
1132 adapter
->vfinfo
[vf
].xcast_mode
= xcast_mode
;
1135 msgbuf
[1] = xcast_mode
;
1140 static int ixgbe_rcv_msg_from_vf(struct ixgbe_adapter
*adapter
, u32 vf
)
1142 u32 mbx_size
= IXGBE_VFMAILBOX_SIZE
;
1143 u32 msgbuf
[IXGBE_VFMAILBOX_SIZE
];
1144 struct ixgbe_hw
*hw
= &adapter
->hw
;
1147 retval
= ixgbe_read_mbx(hw
, msgbuf
, mbx_size
, vf
);
1150 pr_err("Error receiving message from VF\n");
1154 /* this is a message we already processed, do nothing */
1155 if (msgbuf
[0] & (IXGBE_VT_MSGTYPE_ACK
| IXGBE_VT_MSGTYPE_NACK
))
1158 /* flush the ack before we write any messages back */
1159 IXGBE_WRITE_FLUSH(hw
);
1161 if (msgbuf
[0] == IXGBE_VF_RESET
)
1162 return ixgbe_vf_reset_msg(adapter
, vf
);
1165 * until the vf completes a virtual function reset it should not be
1166 * allowed to start any configuration.
1168 if (!adapter
->vfinfo
[vf
].clear_to_send
) {
1169 msgbuf
[0] |= IXGBE_VT_MSGTYPE_NACK
;
1170 ixgbe_write_mbx(hw
, msgbuf
, 1, vf
);
1174 switch ((msgbuf
[0] & 0xFFFF)) {
1175 case IXGBE_VF_SET_MAC_ADDR
:
1176 retval
= ixgbe_set_vf_mac_addr(adapter
, msgbuf
, vf
);
1178 case IXGBE_VF_SET_MULTICAST
:
1179 retval
= ixgbe_set_vf_multicasts(adapter
, msgbuf
, vf
);
1181 case IXGBE_VF_SET_VLAN
:
1182 retval
= ixgbe_set_vf_vlan_msg(adapter
, msgbuf
, vf
);
1184 case IXGBE_VF_SET_LPE
:
1185 retval
= ixgbe_set_vf_lpe(adapter
, msgbuf
, vf
);
1187 case IXGBE_VF_SET_MACVLAN
:
1188 retval
= ixgbe_set_vf_macvlan_msg(adapter
, msgbuf
, vf
);
1190 case IXGBE_VF_API_NEGOTIATE
:
1191 retval
= ixgbe_negotiate_vf_api(adapter
, msgbuf
, vf
);
1193 case IXGBE_VF_GET_QUEUES
:
1194 retval
= ixgbe_get_vf_queues(adapter
, msgbuf
, vf
);
1196 case IXGBE_VF_GET_RETA
:
1197 retval
= ixgbe_get_vf_reta(adapter
, msgbuf
, vf
);
1199 case IXGBE_VF_GET_RSS_KEY
:
1200 retval
= ixgbe_get_vf_rss_key(adapter
, msgbuf
, vf
);
1202 case IXGBE_VF_UPDATE_XCAST_MODE
:
1203 retval
= ixgbe_update_vf_xcast_mode(adapter
, msgbuf
, vf
);
1206 e_err(drv
, "Unhandled Msg %8.8x\n", msgbuf
[0]);
1207 retval
= IXGBE_ERR_MBX
;
1211 /* notify the VF of the results of what it sent us */
1213 msgbuf
[0] |= IXGBE_VT_MSGTYPE_NACK
;
1215 msgbuf
[0] |= IXGBE_VT_MSGTYPE_ACK
;
1217 msgbuf
[0] |= IXGBE_VT_MSGTYPE_CTS
;
1219 ixgbe_write_mbx(hw
, msgbuf
, mbx_size
, vf
);
1224 static void ixgbe_rcv_ack_from_vf(struct ixgbe_adapter
*adapter
, u32 vf
)
1226 struct ixgbe_hw
*hw
= &adapter
->hw
;
1227 u32 msg
= IXGBE_VT_MSGTYPE_NACK
;
1229 /* if device isn't clear to send it shouldn't be reading either */
1230 if (!adapter
->vfinfo
[vf
].clear_to_send
)
1231 ixgbe_write_mbx(hw
, &msg
, 1, vf
);
1234 void ixgbe_msg_task(struct ixgbe_adapter
*adapter
)
1236 struct ixgbe_hw
*hw
= &adapter
->hw
;
1239 for (vf
= 0; vf
< adapter
->num_vfs
; vf
++) {
1240 /* process any reset requests */
1241 if (!ixgbe_check_for_rst(hw
, vf
))
1242 ixgbe_vf_reset_event(adapter
, vf
);
1244 /* process any messages pending */
1245 if (!ixgbe_check_for_msg(hw
, vf
))
1246 ixgbe_rcv_msg_from_vf(adapter
, vf
);
1248 /* process any acks */
1249 if (!ixgbe_check_for_ack(hw
, vf
))
1250 ixgbe_rcv_ack_from_vf(adapter
, vf
);
1254 void ixgbe_disable_tx_rx(struct ixgbe_adapter
*adapter
)
1256 struct ixgbe_hw
*hw
= &adapter
->hw
;
1258 /* disable transmit and receive for all vfs */
1259 IXGBE_WRITE_REG(hw
, IXGBE_VFTE(0), 0);
1260 IXGBE_WRITE_REG(hw
, IXGBE_VFTE(1), 0);
1262 IXGBE_WRITE_REG(hw
, IXGBE_VFRE(0), 0);
1263 IXGBE_WRITE_REG(hw
, IXGBE_VFRE(1), 0);
1266 static inline void ixgbe_ping_vf(struct ixgbe_adapter
*adapter
, int vf
)
1268 struct ixgbe_hw
*hw
= &adapter
->hw
;
1271 ping
= IXGBE_PF_CONTROL_MSG
;
1272 if (adapter
->vfinfo
[vf
].clear_to_send
)
1273 ping
|= IXGBE_VT_MSGTYPE_CTS
;
1274 ixgbe_write_mbx(hw
, &ping
, 1, vf
);
1277 void ixgbe_ping_all_vfs(struct ixgbe_adapter
*adapter
)
1279 struct ixgbe_hw
*hw
= &adapter
->hw
;
1283 for (i
= 0 ; i
< adapter
->num_vfs
; i
++) {
1284 ping
= IXGBE_PF_CONTROL_MSG
;
1285 if (adapter
->vfinfo
[i
].clear_to_send
)
1286 ping
|= IXGBE_VT_MSGTYPE_CTS
;
1287 ixgbe_write_mbx(hw
, &ping
, 1, i
);
1291 int ixgbe_ndo_set_vf_mac(struct net_device
*netdev
, int vf
, u8
*mac
)
1293 struct ixgbe_adapter
*adapter
= netdev_priv(netdev
);
1294 if (!is_valid_ether_addr(mac
) || (vf
>= adapter
->num_vfs
))
1296 adapter
->vfinfo
[vf
].pf_set_mac
= true;
1297 dev_info(&adapter
->pdev
->dev
, "setting MAC %pM on VF %d\n", mac
, vf
);
1298 dev_info(&adapter
->pdev
->dev
, "Reload the VF driver to make this"
1299 " change effective.");
1300 if (test_bit(__IXGBE_DOWN
, &adapter
->state
)) {
1301 dev_warn(&adapter
->pdev
->dev
, "The VF MAC address has been set,"
1302 " but the PF device is not up.\n");
1303 dev_warn(&adapter
->pdev
->dev
, "Bring the PF device up before"
1304 " attempting to use the VF device.\n");
1306 return ixgbe_set_vf_mac(adapter
, vf
, mac
);
1309 static int ixgbe_enable_port_vlan(struct ixgbe_adapter
*adapter
, int vf
,
1312 struct ixgbe_hw
*hw
= &adapter
->hw
;
1315 err
= ixgbe_set_vf_vlan(adapter
, true, vlan
, vf
);
1319 /* Revoke tagless access via VLAN 0 */
1320 ixgbe_set_vf_vlan(adapter
, false, 0, vf
);
1322 ixgbe_set_vmvir(adapter
, vlan
, qos
, vf
);
1323 ixgbe_set_vmolr(hw
, vf
, false);
1324 if (adapter
->vfinfo
[vf
].spoofchk_enabled
)
1325 hw
->mac
.ops
.set_vlan_anti_spoofing(hw
, true, vf
);
1326 adapter
->vfinfo
[vf
].vlan_count
++;
1328 /* enable hide vlan on X550 */
1329 if (hw
->mac
.type
>= ixgbe_mac_X550
)
1330 ixgbe_write_qde(adapter
, vf
, IXGBE_QDE_ENABLE
|
1331 IXGBE_QDE_HIDE_VLAN
);
1333 adapter
->vfinfo
[vf
].pf_vlan
= vlan
;
1334 adapter
->vfinfo
[vf
].pf_qos
= qos
;
1335 dev_info(&adapter
->pdev
->dev
,
1336 "Setting VLAN %d, QOS 0x%x on VF %d\n", vlan
, qos
, vf
);
1337 if (test_bit(__IXGBE_DOWN
, &adapter
->state
)) {
1338 dev_warn(&adapter
->pdev
->dev
,
1339 "The VF VLAN has been set, but the PF device is not up.\n");
1340 dev_warn(&adapter
->pdev
->dev
,
1341 "Bring the PF device up before attempting to use the VF device.\n");
1348 static int ixgbe_disable_port_vlan(struct ixgbe_adapter
*adapter
, int vf
)
1350 struct ixgbe_hw
*hw
= &adapter
->hw
;
1353 err
= ixgbe_set_vf_vlan(adapter
, false,
1354 adapter
->vfinfo
[vf
].pf_vlan
, vf
);
1355 /* Restore tagless access via VLAN 0 */
1356 ixgbe_set_vf_vlan(adapter
, true, 0, vf
);
1357 ixgbe_clear_vmvir(adapter
, vf
);
1358 ixgbe_set_vmolr(hw
, vf
, true);
1359 hw
->mac
.ops
.set_vlan_anti_spoofing(hw
, false, vf
);
1360 if (adapter
->vfinfo
[vf
].vlan_count
)
1361 adapter
->vfinfo
[vf
].vlan_count
--;
1363 /* disable hide VLAN on X550 */
1364 if (hw
->mac
.type
>= ixgbe_mac_X550
)
1365 ixgbe_write_qde(adapter
, vf
, IXGBE_QDE_ENABLE
);
1367 adapter
->vfinfo
[vf
].pf_vlan
= 0;
1368 adapter
->vfinfo
[vf
].pf_qos
= 0;
1373 int ixgbe_ndo_set_vf_vlan(struct net_device
*netdev
, int vf
, u16 vlan
, u8 qos
)
1376 struct ixgbe_adapter
*adapter
= netdev_priv(netdev
);
1378 if ((vf
>= adapter
->num_vfs
) || (vlan
> 4095) || (qos
> 7))
1381 /* Check if there is already a port VLAN set, if so
1382 * we have to delete the old one first before we
1383 * can set the new one. The usage model had
1384 * previously assumed the user would delete the
1385 * old port VLAN before setting a new one but this
1386 * is not necessarily the case.
1388 if (adapter
->vfinfo
[vf
].pf_vlan
)
1389 err
= ixgbe_disable_port_vlan(adapter
, vf
);
1392 err
= ixgbe_enable_port_vlan(adapter
, vf
, vlan
, qos
);
1394 err
= ixgbe_disable_port_vlan(adapter
, vf
);
1401 int ixgbe_link_mbps(struct ixgbe_adapter
*adapter
)
1403 switch (adapter
->link_speed
) {
1404 case IXGBE_LINK_SPEED_100_FULL
:
1406 case IXGBE_LINK_SPEED_1GB_FULL
:
1408 case IXGBE_LINK_SPEED_10GB_FULL
:
1415 static void ixgbe_set_vf_rate_limit(struct ixgbe_adapter
*adapter
, int vf
)
1417 struct ixgbe_ring_feature
*vmdq
= &adapter
->ring_feature
[RING_F_VMDQ
];
1418 struct ixgbe_hw
*hw
= &adapter
->hw
;
1420 u16 queue
, queues_per_pool
;
1421 u16 tx_rate
= adapter
->vfinfo
[vf
].tx_rate
;
1424 /* start with base link speed value */
1425 bcnrc_val
= adapter
->vf_rate_link_speed
;
1427 /* Calculate the rate factor values to set */
1428 bcnrc_val
<<= IXGBE_RTTBCNRC_RF_INT_SHIFT
;
1429 bcnrc_val
/= tx_rate
;
1431 /* clear everything but the rate factor */
1432 bcnrc_val
&= IXGBE_RTTBCNRC_RF_INT_MASK
|
1433 IXGBE_RTTBCNRC_RF_DEC_MASK
;
1435 /* enable the rate scheduler */
1436 bcnrc_val
|= IXGBE_RTTBCNRC_RS_ENA
;
1440 * Set global transmit compensation time to the MMW_SIZE in RTTBCNRM
1441 * register. Typically MMW_SIZE=0x014 if 9728-byte jumbo is supported
1442 * and 0x004 otherwise.
1444 switch (hw
->mac
.type
) {
1445 case ixgbe_mac_82599EB
:
1446 IXGBE_WRITE_REG(hw
, IXGBE_RTTBCNRM
, 0x4);
1448 case ixgbe_mac_X540
:
1449 IXGBE_WRITE_REG(hw
, IXGBE_RTTBCNRM
, 0x14);
1455 /* determine how many queues per pool based on VMDq mask */
1456 queues_per_pool
= __ALIGN_MASK(1, ~vmdq
->mask
);
1458 /* write value for all Tx queues belonging to VF */
1459 for (queue
= 0; queue
< queues_per_pool
; queue
++) {
1460 unsigned int reg_idx
= (vf
* queues_per_pool
) + queue
;
1462 IXGBE_WRITE_REG(hw
, IXGBE_RTTDQSEL
, reg_idx
);
1463 IXGBE_WRITE_REG(hw
, IXGBE_RTTBCNRC
, bcnrc_val
);
1467 void ixgbe_check_vf_rate_limit(struct ixgbe_adapter
*adapter
)
1471 /* VF Tx rate limit was not set */
1472 if (!adapter
->vf_rate_link_speed
)
1475 if (ixgbe_link_mbps(adapter
) != adapter
->vf_rate_link_speed
) {
1476 adapter
->vf_rate_link_speed
= 0;
1477 dev_info(&adapter
->pdev
->dev
,
1478 "Link speed has been changed. VF Transmit rate is disabled\n");
1481 for (i
= 0; i
< adapter
->num_vfs
; i
++) {
1482 if (!adapter
->vf_rate_link_speed
)
1483 adapter
->vfinfo
[i
].tx_rate
= 0;
1485 ixgbe_set_vf_rate_limit(adapter
, i
);
1489 int ixgbe_ndo_set_vf_bw(struct net_device
*netdev
, int vf
, int min_tx_rate
,
1492 struct ixgbe_adapter
*adapter
= netdev_priv(netdev
);
1495 /* verify VF is active */
1496 if (vf
>= adapter
->num_vfs
)
1499 /* verify link is up */
1500 if (!adapter
->link_up
)
1503 /* verify we are linked at 10Gbps */
1504 link_speed
= ixgbe_link_mbps(adapter
);
1505 if (link_speed
!= 10000)
1511 /* rate limit cannot be less than 10Mbs or greater than link speed */
1512 if (max_tx_rate
&& ((max_tx_rate
<= 10) || (max_tx_rate
> link_speed
)))
1516 adapter
->vf_rate_link_speed
= link_speed
;
1517 adapter
->vfinfo
[vf
].tx_rate
= max_tx_rate
;
1519 /* update hardware configuration */
1520 ixgbe_set_vf_rate_limit(adapter
, vf
);
1525 int ixgbe_ndo_set_vf_spoofchk(struct net_device
*netdev
, int vf
, bool setting
)
1527 struct ixgbe_adapter
*adapter
= netdev_priv(netdev
);
1528 int vf_target_reg
= vf
>> 3;
1529 int vf_target_shift
= vf
% 8;
1530 struct ixgbe_hw
*hw
= &adapter
->hw
;
1533 if (vf
>= adapter
->num_vfs
)
1536 adapter
->vfinfo
[vf
].spoofchk_enabled
= setting
;
1538 regval
= IXGBE_READ_REG(hw
, IXGBE_PFVFSPOOF(vf_target_reg
));
1539 regval
&= ~(1 << vf_target_shift
);
1540 regval
|= (setting
<< vf_target_shift
);
1541 IXGBE_WRITE_REG(hw
, IXGBE_PFVFSPOOF(vf_target_reg
), regval
);
1543 if (adapter
->vfinfo
[vf
].vlan_count
) {
1544 vf_target_shift
+= IXGBE_SPOOF_VLANAS_SHIFT
;
1545 regval
= IXGBE_READ_REG(hw
, IXGBE_PFVFSPOOF(vf_target_reg
));
1546 regval
&= ~(1 << vf_target_shift
);
1547 regval
|= (setting
<< vf_target_shift
);
1548 IXGBE_WRITE_REG(hw
, IXGBE_PFVFSPOOF(vf_target_reg
), regval
);
1554 int ixgbe_ndo_set_vf_rss_query_en(struct net_device
*netdev
, int vf
,
1557 struct ixgbe_adapter
*adapter
= netdev_priv(netdev
);
1559 /* This operation is currently supported only for 82599 and x540
1562 if (adapter
->hw
.mac
.type
< ixgbe_mac_82599EB
||
1563 adapter
->hw
.mac
.type
>= ixgbe_mac_X550
)
1566 if (vf
>= adapter
->num_vfs
)
1569 adapter
->vfinfo
[vf
].rss_query_enabled
= setting
;
1574 int ixgbe_ndo_set_vf_trust(struct net_device
*netdev
, int vf
, bool setting
)
1576 struct ixgbe_adapter
*adapter
= netdev_priv(netdev
);
1578 if (vf
>= adapter
->num_vfs
)
1582 if (adapter
->vfinfo
[vf
].trusted
== setting
)
1585 adapter
->vfinfo
[vf
].trusted
= setting
;
1587 /* reset VF to reconfigure features */
1588 adapter
->vfinfo
[vf
].clear_to_send
= false;
1589 ixgbe_ping_vf(adapter
, vf
);
1591 e_info(drv
, "VF %u is %strusted\n", vf
, setting
? "" : "not ");
1596 int ixgbe_ndo_get_vf_config(struct net_device
*netdev
,
1597 int vf
, struct ifla_vf_info
*ivi
)
1599 struct ixgbe_adapter
*adapter
= netdev_priv(netdev
);
1600 if (vf
>= adapter
->num_vfs
)
1603 memcpy(&ivi
->mac
, adapter
->vfinfo
[vf
].vf_mac_addresses
, ETH_ALEN
);
1604 ivi
->max_tx_rate
= adapter
->vfinfo
[vf
].tx_rate
;
1605 ivi
->min_tx_rate
= 0;
1606 ivi
->vlan
= adapter
->vfinfo
[vf
].pf_vlan
;
1607 ivi
->qos
= adapter
->vfinfo
[vf
].pf_qos
;
1608 ivi
->spoofchk
= adapter
->vfinfo
[vf
].spoofchk_enabled
;
1609 ivi
->rss_query_en
= adapter
->vfinfo
[vf
].rss_query_enabled
;
1610 ivi
->trusted
= adapter
->vfinfo
[vf
].trusted
;