1 /*******************************************************************************
3 Intel 82599 Virtual Function 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, see <http://www.gnu.org/licenses/>.
18 The full GNU General Public License is included in this distribution in
19 the file called "COPYING".
22 e1000-devel Mailing List <e1000-devel@lists.sourceforge.net>
23 Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
25 *******************************************************************************/
30 /* On Hyper-V, to reset, we need to read from this offset
31 * from the PCI config space. This is the mechanism used on
32 * Hyper-V to support PF/VF communication.
34 #define IXGBE_HV_RESET_OFFSET 0x201
36 static inline s32 ixgbevf_write_msg_read_ack(struct ixgbe_hw *hw, u32 *msg,
37 u32 *retmsg, u16 size)
39 struct ixgbe_mbx_info *mbx = &hw->mbx;
40 s32 retval = mbx->ops.write_posted(hw, msg, size);
45 return mbx->ops.read_posted(hw, retmsg, size);
49 * ixgbevf_start_hw_vf - Prepare hardware for Tx/Rx
50 * @hw: pointer to hardware structure
52 * Starts the hardware by filling the bus info structure and media type, clears
53 * all on chip counters, initializes receive address registers, multicast
54 * table, VLAN filter table, calls routine to set up link and flow control
55 * settings, and leaves transmit and receive units disabled and uninitialized
57 static s32 ixgbevf_start_hw_vf(struct ixgbe_hw *hw)
59 /* Clear adapter stopped flag */
60 hw->adapter_stopped = false;
66 * ixgbevf_init_hw_vf - virtual function hardware initialization
67 * @hw: pointer to hardware structure
69 * Initialize the hardware by resetting the hardware and then starting
72 static s32 ixgbevf_init_hw_vf(struct ixgbe_hw *hw)
74 s32 status = hw->mac.ops.start_hw(hw);
76 hw->mac.ops.get_mac_addr(hw, hw->mac.addr);
82 * ixgbevf_reset_hw_vf - Performs hardware reset
83 * @hw: pointer to hardware structure
85 * Resets the hardware by resetting the transmit and receive units, masks and
86 * clears all interrupts.
88 static s32 ixgbevf_reset_hw_vf(struct ixgbe_hw *hw)
90 struct ixgbe_mbx_info *mbx = &hw->mbx;
91 u32 timeout = IXGBE_VF_INIT_TIMEOUT;
92 s32 ret_val = IXGBE_ERR_INVALID_MAC_ADDR;
93 u32 msgbuf[IXGBE_VF_PERMADDR_MSG_LEN];
94 u8 *addr = (u8 *)(&msgbuf[1]);
96 /* Call adapter stop to disable tx/rx and clear interrupts */
97 hw->mac.ops.stop_adapter(hw);
99 /* reset the api version */
100 hw->api_version = ixgbe_mbox_api_10;
102 IXGBE_WRITE_REG(hw, IXGBE_VFCTRL, IXGBE_CTRL_RST);
103 IXGBE_WRITE_FLUSH(hw);
105 /* we cannot reset while the RSTI / RSTD bits are asserted */
106 while (!mbx->ops.check_for_rst(hw) && timeout) {
112 return IXGBE_ERR_RESET_FAILED;
114 /* mailbox timeout can now become active */
115 mbx->timeout = IXGBE_VF_MBX_INIT_TIMEOUT;
117 msgbuf[0] = IXGBE_VF_RESET;
118 mbx->ops.write_posted(hw, msgbuf, 1);
122 /* set our "perm_addr" based on info provided by PF
123 * also set up the mc_filter_type which is piggy backed
124 * on the mac address in word 3
126 ret_val = mbx->ops.read_posted(hw, msgbuf, IXGBE_VF_PERMADDR_MSG_LEN);
130 /* New versions of the PF may NACK the reset return message
131 * to indicate that no MAC address has yet been assigned for
134 if (msgbuf[0] != (IXGBE_VF_RESET | IXGBE_VT_MSGTYPE_ACK) &&
135 msgbuf[0] != (IXGBE_VF_RESET | IXGBE_VT_MSGTYPE_NACK))
136 return IXGBE_ERR_INVALID_MAC_ADDR;
138 if (msgbuf[0] == (IXGBE_VF_RESET | IXGBE_VT_MSGTYPE_ACK))
139 ether_addr_copy(hw->mac.perm_addr, addr);
141 hw->mac.mc_filter_type = msgbuf[IXGBE_VF_MC_TYPE_WORD];
147 * Hyper-V variant; the VF/PF communication is through the PCI
150 static s32 ixgbevf_hv_reset_hw_vf(struct ixgbe_hw *hw)
152 #if IS_ENABLED(CONFIG_PCI_MMCONFIG)
153 struct ixgbevf_adapter *adapter = hw->back;
156 for (i = 0; i < 6; i++)
157 pci_read_config_byte(adapter->pdev,
158 (i + IXGBE_HV_RESET_OFFSET),
159 &hw->mac.perm_addr[i]);
162 pr_err("PCI_MMCONFIG needs to be enabled for Hyper-V\n");
168 * ixgbevf_stop_hw_vf - Generic stop Tx/Rx units
169 * @hw: pointer to hardware structure
171 * Sets the adapter_stopped flag within ixgbe_hw struct. Clears interrupts,
172 * disables transmit and receive units. The adapter_stopped flag is used by
173 * the shared code and drivers to determine if the adapter is in a stopped
174 * state and should not touch the hardware.
176 static s32 ixgbevf_stop_hw_vf(struct ixgbe_hw *hw)
178 u32 number_of_queues;
182 /* Set the adapter_stopped flag so other driver functions stop touching
185 hw->adapter_stopped = true;
187 /* Disable the receive unit by stopped each queue */
188 number_of_queues = hw->mac.max_rx_queues;
189 for (i = 0; i < number_of_queues; i++) {
190 reg_val = IXGBE_READ_REG(hw, IXGBE_VFRXDCTL(i));
191 if (reg_val & IXGBE_RXDCTL_ENABLE) {
192 reg_val &= ~IXGBE_RXDCTL_ENABLE;
193 IXGBE_WRITE_REG(hw, IXGBE_VFRXDCTL(i), reg_val);
197 IXGBE_WRITE_FLUSH(hw);
199 /* Clear interrupt mask to stop from interrupts being generated */
200 IXGBE_WRITE_REG(hw, IXGBE_VTEIMC, IXGBE_VF_IRQ_CLEAR_MASK);
202 /* Clear any pending interrupts */
203 IXGBE_READ_REG(hw, IXGBE_VTEICR);
205 /* Disable the transmit unit. Each queue must be disabled. */
206 number_of_queues = hw->mac.max_tx_queues;
207 for (i = 0; i < number_of_queues; i++) {
208 reg_val = IXGBE_READ_REG(hw, IXGBE_VFTXDCTL(i));
209 if (reg_val & IXGBE_TXDCTL_ENABLE) {
210 reg_val &= ~IXGBE_TXDCTL_ENABLE;
211 IXGBE_WRITE_REG(hw, IXGBE_VFTXDCTL(i), reg_val);
219 * ixgbevf_mta_vector - Determines bit-vector in multicast table to set
220 * @hw: pointer to hardware structure
221 * @mc_addr: the multicast address
223 * Extracts the 12 bits, from a multicast address, to determine which
224 * bit-vector to set in the multicast table. The hardware uses 12 bits, from
225 * incoming Rx multicast addresses, to determine the bit-vector to check in
226 * the MTA. Which of the 4 combination, of 12-bits, the hardware uses is set
227 * by the MO field of the MCSTCTRL. The MO field is set during initialization
230 static s32 ixgbevf_mta_vector(struct ixgbe_hw *hw, u8 *mc_addr)
234 switch (hw->mac.mc_filter_type) {
235 case 0: /* use bits [47:36] of the address */
236 vector = ((mc_addr[4] >> 4) | (((u16)mc_addr[5]) << 4));
238 case 1: /* use bits [46:35] of the address */
239 vector = ((mc_addr[4] >> 3) | (((u16)mc_addr[5]) << 5));
241 case 2: /* use bits [45:34] of the address */
242 vector = ((mc_addr[4] >> 2) | (((u16)mc_addr[5]) << 6));
244 case 3: /* use bits [43:32] of the address */
245 vector = ((mc_addr[4]) | (((u16)mc_addr[5]) << 8));
247 default: /* Invalid mc_filter_type */
251 /* vector can only be 12-bits or boundary will be exceeded */
257 * ixgbevf_get_mac_addr_vf - Read device MAC address
258 * @hw: pointer to the HW structure
259 * @mac_addr: pointer to storage for retrieved MAC address
261 static s32 ixgbevf_get_mac_addr_vf(struct ixgbe_hw *hw, u8 *mac_addr)
263 ether_addr_copy(mac_addr, hw->mac.perm_addr);
268 static s32 ixgbevf_set_uc_addr_vf(struct ixgbe_hw *hw, u32 index, u8 *addr)
270 u32 msgbuf[3], msgbuf_chk;
271 u8 *msg_addr = (u8 *)(&msgbuf[1]);
274 memset(msgbuf, 0, sizeof(msgbuf));
275 /* If index is one then this is the start of a new list and needs
276 * indication to the PF so it can do it's own list management.
277 * If it is zero then that tells the PF to just clear all of
278 * this VF's macvlans and there is no new list.
280 msgbuf[0] |= index << IXGBE_VT_MSGINFO_SHIFT;
281 msgbuf[0] |= IXGBE_VF_SET_MACVLAN;
282 msgbuf_chk = msgbuf[0];
285 ether_addr_copy(msg_addr, addr);
287 ret_val = ixgbevf_write_msg_read_ack(hw, msgbuf, msgbuf, 3);
289 msgbuf[0] &= ~IXGBE_VT_MSGTYPE_CTS;
291 if (msgbuf[0] == (msgbuf_chk | IXGBE_VT_MSGTYPE_NACK))
298 static s32 ixgbevf_hv_set_uc_addr_vf(struct ixgbe_hw *hw, u32 index, u8 *addr)
304 * ixgbevf_get_reta_locked - get the RSS redirection table (RETA) contents.
305 * @adapter: pointer to the port handle
306 * @reta: buffer to fill with RETA contents.
307 * @num_rx_queues: Number of Rx queues configured for this port
309 * The "reta" buffer should be big enough to contain 32 registers.
311 * Returns: 0 on success.
312 * if API doesn't support this operation - (-EOPNOTSUPP).
314 int ixgbevf_get_reta_locked(struct ixgbe_hw *hw, u32 *reta, int num_rx_queues)
317 u32 msgbuf[IXGBE_VFMAILBOX_SIZE];
318 u32 *hw_reta = &msgbuf[1];
321 /* We have to use a mailbox for 82599 and x540 devices only.
322 * For these devices RETA has 128 entries.
323 * Also these VFs support up to 4 RSS queues. Therefore PF will compress
324 * 16 RETA entries in each DWORD giving 2 bits to each entry.
326 int dwords = IXGBEVF_82599_RETA_SIZE / 16;
328 /* We support the RSS querying for 82599 and x540 devices only.
329 * Thus return an error if API doesn't support RETA querying or querying
330 * is not supported for this device type.
332 if (hw->api_version != ixgbe_mbox_api_12 ||
333 hw->mac.type >= ixgbe_mac_X550_vf)
336 msgbuf[0] = IXGBE_VF_GET_RETA;
338 err = hw->mbx.ops.write_posted(hw, msgbuf, 1);
343 err = hw->mbx.ops.read_posted(hw, msgbuf, dwords + 1);
348 msgbuf[0] &= ~IXGBE_VT_MSGTYPE_CTS;
350 /* If the operation has been refused by a PF return -EPERM */
351 if (msgbuf[0] == (IXGBE_VF_GET_RETA | IXGBE_VT_MSGTYPE_NACK))
354 /* If we didn't get an ACK there must have been
355 * some sort of mailbox error so we should treat it
358 if (msgbuf[0] != (IXGBE_VF_GET_RETA | IXGBE_VT_MSGTYPE_ACK))
359 return IXGBE_ERR_MBX;
361 /* ixgbevf doesn't support more than 2 queues at the moment */
362 if (num_rx_queues > 1)
365 for (i = 0; i < dwords; i++)
366 for (j = 0; j < 16; j++)
367 reta[i * 16 + j] = (hw_reta[i] >> (2 * j)) & mask;
373 * ixgbevf_get_rss_key_locked - get the RSS Random Key
374 * @hw: pointer to the HW structure
375 * @rss_key: buffer to fill with RSS Hash Key contents.
377 * The "rss_key" buffer should be big enough to contain 10 registers.
379 * Returns: 0 on success.
380 * if API doesn't support this operation - (-EOPNOTSUPP).
382 int ixgbevf_get_rss_key_locked(struct ixgbe_hw *hw, u8 *rss_key)
385 u32 msgbuf[IXGBE_VFMAILBOX_SIZE];
387 /* We currently support the RSS Random Key retrieval for 82599 and x540
390 * Thus return an error if API doesn't support RSS Random Key retrieval
391 * or if the operation is not supported for this device type.
393 if (hw->api_version != ixgbe_mbox_api_12 ||
394 hw->mac.type >= ixgbe_mac_X550_vf)
397 msgbuf[0] = IXGBE_VF_GET_RSS_KEY;
398 err = hw->mbx.ops.write_posted(hw, msgbuf, 1);
403 err = hw->mbx.ops.read_posted(hw, msgbuf, 11);
408 msgbuf[0] &= ~IXGBE_VT_MSGTYPE_CTS;
410 /* If the operation has been refused by a PF return -EPERM */
411 if (msgbuf[0] == (IXGBE_VF_GET_RETA | IXGBE_VT_MSGTYPE_NACK))
414 /* If we didn't get an ACK there must have been
415 * some sort of mailbox error so we should treat it
418 if (msgbuf[0] != (IXGBE_VF_GET_RSS_KEY | IXGBE_VT_MSGTYPE_ACK))
419 return IXGBE_ERR_MBX;
421 memcpy(rss_key, msgbuf + 1, IXGBEVF_RSS_HASH_KEY_SIZE);
427 * ixgbevf_set_rar_vf - set device MAC address
428 * @hw: pointer to hardware structure
429 * @index: Receive address register to write
430 * @addr: Address to put into receive address register
431 * @vmdq: Unused in this implementation
433 static s32 ixgbevf_set_rar_vf(struct ixgbe_hw *hw, u32 index, u8 *addr,
437 u8 *msg_addr = (u8 *)(&msgbuf[1]);
440 memset(msgbuf, 0, sizeof(msgbuf));
441 msgbuf[0] = IXGBE_VF_SET_MAC_ADDR;
442 ether_addr_copy(msg_addr, addr);
444 ret_val = ixgbevf_write_msg_read_ack(hw, msgbuf, msgbuf, 2);
446 msgbuf[0] &= ~IXGBE_VT_MSGTYPE_CTS;
448 /* if nacked the address was rejected, use "perm_addr" */
450 (msgbuf[0] == (IXGBE_VF_SET_MAC_ADDR | IXGBE_VT_MSGTYPE_NACK))) {
451 ixgbevf_get_mac_addr_vf(hw, hw->mac.addr);
452 return IXGBE_ERR_MBX;
459 * ixgbevf_hv_set_rar_vf - set device MAC address Hyper-V variant
460 * @hw: pointer to hardware structure
461 * @index: Receive address register to write
462 * @addr: Address to put into receive address register
463 * @vmdq: Unused in this implementation
465 * We don't really allow setting the device MAC address. However,
466 * if the address being set is the permanent MAC address we will
469 static s32 ixgbevf_hv_set_rar_vf(struct ixgbe_hw *hw, u32 index, u8 *addr,
472 if (ether_addr_equal(addr, hw->mac.perm_addr))
479 * ixgbevf_update_mc_addr_list_vf - Update Multicast addresses
480 * @hw: pointer to the HW structure
481 * @netdev: pointer to net device structure
483 * Updates the Multicast Table Array.
485 static s32 ixgbevf_update_mc_addr_list_vf(struct ixgbe_hw *hw,
486 struct net_device *netdev)
488 struct netdev_hw_addr *ha;
489 u32 msgbuf[IXGBE_VFMAILBOX_SIZE];
490 u16 *vector_list = (u16 *)&msgbuf[1];
493 /* Each entry in the list uses 1 16 bit word. We have 30
494 * 16 bit words available in our HW msg buffer (minus 1 for the
495 * msg type). That's 30 hash values if we pack 'em right. If
496 * there are more than 30 MC addresses to add then punt the
497 * extras for now and then add code to handle more than 30 later.
498 * It would be unusual for a server to request that many multi-cast
499 * addresses except for in large enterprise network environments.
502 cnt = netdev_mc_count(netdev);
505 msgbuf[0] = IXGBE_VF_SET_MULTICAST;
506 msgbuf[0] |= cnt << IXGBE_VT_MSGINFO_SHIFT;
509 netdev_for_each_mc_addr(ha, netdev) {
512 if (is_link_local_ether_addr(ha->addr))
515 vector_list[i++] = ixgbevf_mta_vector(hw, ha->addr);
518 ixgbevf_write_msg_read_ack(hw, msgbuf, msgbuf, IXGBE_VFMAILBOX_SIZE);
524 * Hyper-V variant - just a stub.
526 static s32 ixgbevf_hv_update_mc_addr_list_vf(struct ixgbe_hw *hw,
527 struct net_device *netdev)
533 * ixgbevf_update_xcast_mode - Update Multicast mode
534 * @hw: pointer to the HW structure
535 * @xcast_mode: new multicast mode
537 * Updates the Multicast Mode of VF.
539 static s32 ixgbevf_update_xcast_mode(struct ixgbe_hw *hw, int xcast_mode)
544 switch (hw->api_version) {
545 case ixgbe_mbox_api_12:
551 msgbuf[0] = IXGBE_VF_UPDATE_XCAST_MODE;
552 msgbuf[1] = xcast_mode;
554 err = ixgbevf_write_msg_read_ack(hw, msgbuf, msgbuf, 2);
558 msgbuf[0] &= ~IXGBE_VT_MSGTYPE_CTS;
559 if (msgbuf[0] == (IXGBE_VF_UPDATE_XCAST_MODE | IXGBE_VT_MSGTYPE_NACK))
566 * Hyper-V variant - just a stub.
568 static s32 ixgbevf_hv_update_xcast_mode(struct ixgbe_hw *hw, int xcast_mode)
574 * ixgbevf_set_vfta_vf - Set/Unset VLAN filter table address
575 * @hw: pointer to the HW structure
576 * @vlan: 12 bit VLAN ID
577 * @vind: unused by VF drivers
578 * @vlan_on: if true then set bit, else clear bit
580 static s32 ixgbevf_set_vfta_vf(struct ixgbe_hw *hw, u32 vlan, u32 vind,
586 msgbuf[0] = IXGBE_VF_SET_VLAN;
588 /* Setting the 8 bit field MSG INFO to TRUE indicates "add" */
589 msgbuf[0] |= vlan_on << IXGBE_VT_MSGINFO_SHIFT;
591 err = ixgbevf_write_msg_read_ack(hw, msgbuf, msgbuf, 2);
595 /* remove extra bits from the message */
596 msgbuf[0] &= ~IXGBE_VT_MSGTYPE_CTS;
597 msgbuf[0] &= ~(0xFF << IXGBE_VT_MSGINFO_SHIFT);
599 if (msgbuf[0] != (IXGBE_VF_SET_VLAN | IXGBE_VT_MSGTYPE_ACK))
600 err = IXGBE_ERR_INVALID_ARGUMENT;
607 * Hyper-V variant - just a stub.
609 static s32 ixgbevf_hv_set_vfta_vf(struct ixgbe_hw *hw, u32 vlan, u32 vind,
616 * ixgbevf_setup_mac_link_vf - Setup MAC link settings
617 * @hw: pointer to hardware structure
618 * @speed: Unused in this implementation
619 * @autoneg: Unused in this implementation
620 * @autoneg_wait_to_complete: Unused in this implementation
622 * Do nothing and return success. VF drivers are not allowed to change
623 * global settings. Maintained for driver compatibility.
625 static s32 ixgbevf_setup_mac_link_vf(struct ixgbe_hw *hw,
626 ixgbe_link_speed speed, bool autoneg,
627 bool autoneg_wait_to_complete)
633 * ixgbevf_check_mac_link_vf - Get link/speed status
634 * @hw: pointer to hardware structure
635 * @speed: pointer to link speed
636 * @link_up: true is link is up, false otherwise
637 * @autoneg_wait_to_complete: true when waiting for completion is needed
639 * Reads the links register to determine if link is up and the current speed
641 static s32 ixgbevf_check_mac_link_vf(struct ixgbe_hw *hw,
642 ixgbe_link_speed *speed,
644 bool autoneg_wait_to_complete)
646 struct ixgbe_mbx_info *mbx = &hw->mbx;
647 struct ixgbe_mac_info *mac = &hw->mac;
652 /* If we were hit with a reset drop the link */
653 if (!mbx->ops.check_for_rst(hw) || !mbx->timeout)
654 mac->get_link_status = true;
656 if (!mac->get_link_status)
659 /* if link status is down no point in checking to see if pf is up */
660 links_reg = IXGBE_READ_REG(hw, IXGBE_VFLINKS);
661 if (!(links_reg & IXGBE_LINKS_UP))
664 /* for SFP+ modules and DA cables on 82599 it can take up to 500usecs
665 * before the link status is correct
667 if (mac->type == ixgbe_mac_82599_vf) {
670 for (i = 0; i < 5; i++) {
672 links_reg = IXGBE_READ_REG(hw, IXGBE_VFLINKS);
674 if (!(links_reg & IXGBE_LINKS_UP))
679 switch (links_reg & IXGBE_LINKS_SPEED_82599) {
680 case IXGBE_LINKS_SPEED_10G_82599:
681 *speed = IXGBE_LINK_SPEED_10GB_FULL;
683 case IXGBE_LINKS_SPEED_1G_82599:
684 *speed = IXGBE_LINK_SPEED_1GB_FULL;
686 case IXGBE_LINKS_SPEED_100_82599:
687 *speed = IXGBE_LINK_SPEED_100_FULL;
691 /* if the read failed it could just be a mailbox collision, best wait
692 * until we are called again and don't report an error
694 if (mbx->ops.read(hw, &in_msg, 1))
697 if (!(in_msg & IXGBE_VT_MSGTYPE_CTS)) {
698 /* msg is not CTS and is NACK we must have lost CTS status */
699 if (in_msg & IXGBE_VT_MSGTYPE_NACK)
704 /* the pf is talking, if we timed out in the past we reinit */
710 /* if we passed all the tests above then the link is up and we no
711 * longer need to check for link
713 mac->get_link_status = false;
716 *link_up = !mac->get_link_status;
721 * Hyper-V variant; there is no mailbox communication.
723 static s32 ixgbevf_hv_check_mac_link_vf(struct ixgbe_hw *hw,
724 ixgbe_link_speed *speed,
726 bool autoneg_wait_to_complete)
728 struct ixgbe_mbx_info *mbx = &hw->mbx;
729 struct ixgbe_mac_info *mac = &hw->mac;
732 /* If we were hit with a reset drop the link */
733 if (!mbx->ops.check_for_rst(hw) || !mbx->timeout)
734 mac->get_link_status = true;
736 if (!mac->get_link_status)
739 /* if link status is down no point in checking to see if pf is up */
740 links_reg = IXGBE_READ_REG(hw, IXGBE_VFLINKS);
741 if (!(links_reg & IXGBE_LINKS_UP))
744 /* for SFP+ modules and DA cables on 82599 it can take up to 500usecs
745 * before the link status is correct
747 if (mac->type == ixgbe_mac_82599_vf) {
750 for (i = 0; i < 5; i++) {
752 links_reg = IXGBE_READ_REG(hw, IXGBE_VFLINKS);
754 if (!(links_reg & IXGBE_LINKS_UP))
759 switch (links_reg & IXGBE_LINKS_SPEED_82599) {
760 case IXGBE_LINKS_SPEED_10G_82599:
761 *speed = IXGBE_LINK_SPEED_10GB_FULL;
763 case IXGBE_LINKS_SPEED_1G_82599:
764 *speed = IXGBE_LINK_SPEED_1GB_FULL;
766 case IXGBE_LINKS_SPEED_100_82599:
767 *speed = IXGBE_LINK_SPEED_100_FULL;
771 /* if we passed all the tests above then the link is up and we no
772 * longer need to check for link
774 mac->get_link_status = false;
777 *link_up = !mac->get_link_status;
782 * ixgbevf_set_rlpml_vf - Set the maximum receive packet length
783 * @hw: pointer to the HW structure
784 * @max_size: value to assign to max frame size
786 static s32 ixgbevf_set_rlpml_vf(struct ixgbe_hw *hw, u16 max_size)
791 msgbuf[0] = IXGBE_VF_SET_LPE;
792 msgbuf[1] = max_size;
794 ret_val = ixgbevf_write_msg_read_ack(hw, msgbuf, msgbuf, 2);
797 if ((msgbuf[0] & IXGBE_VF_SET_LPE) &&
798 (msgbuf[0] & IXGBE_VT_MSGTYPE_NACK))
799 return IXGBE_ERR_MBX;
805 * ixgbevf_hv_set_rlpml_vf - Set the maximum receive packet length
806 * @hw: pointer to the HW structure
807 * @max_size: value to assign to max frame size
810 static s32 ixgbevf_hv_set_rlpml_vf(struct ixgbe_hw *hw, u16 max_size)
814 /* If we are on Hyper-V, we implement this functionality
817 reg = IXGBE_READ_REG(hw, IXGBE_VFRXDCTL(0));
819 reg |= ((max_size + 4) | IXGBE_RXDCTL_RLPML_EN);
820 IXGBE_WRITE_REG(hw, IXGBE_VFRXDCTL(0), reg);
826 * ixgbevf_negotiate_api_version_vf - Negotiate supported API version
827 * @hw: pointer to the HW structure
828 * @api: integer containing requested API version
830 static int ixgbevf_negotiate_api_version_vf(struct ixgbe_hw *hw, int api)
835 /* Negotiate the mailbox API version */
836 msg[0] = IXGBE_VF_API_NEGOTIATE;
840 err = ixgbevf_write_msg_read_ack(hw, msg, msg, 3);
842 msg[0] &= ~IXGBE_VT_MSGTYPE_CTS;
844 /* Store value and return 0 on success */
845 if (msg[0] == (IXGBE_VF_API_NEGOTIATE | IXGBE_VT_MSGTYPE_ACK)) {
846 hw->api_version = api;
850 err = IXGBE_ERR_INVALID_ARGUMENT;
857 * ixgbevf_hv_negotiate_api_version_vf - Negotiate supported API version
858 * @hw: pointer to the HW structure
859 * @api: integer containing requested API version
860 * Hyper-V version - only ixgbe_mbox_api_10 supported.
862 static int ixgbevf_hv_negotiate_api_version_vf(struct ixgbe_hw *hw, int api)
864 /* Hyper-V only supports api version ixgbe_mbox_api_10 */
865 if (api != ixgbe_mbox_api_10)
866 return IXGBE_ERR_INVALID_ARGUMENT;
871 int ixgbevf_get_queues(struct ixgbe_hw *hw, unsigned int *num_tcs,
872 unsigned int *default_tc)
877 /* do nothing if API doesn't support ixgbevf_get_queues */
878 switch (hw->api_version) {
879 case ixgbe_mbox_api_11:
880 case ixgbe_mbox_api_12:
886 /* Fetch queue configuration from the PF */
887 msg[0] = IXGBE_VF_GET_QUEUE;
888 msg[1] = msg[2] = msg[3] = msg[4] = 0;
890 err = ixgbevf_write_msg_read_ack(hw, msg, msg, 5);
892 msg[0] &= ~IXGBE_VT_MSGTYPE_CTS;
894 /* if we we didn't get an ACK there must have been
895 * some sort of mailbox error so we should treat it
898 if (msg[0] != (IXGBE_VF_GET_QUEUE | IXGBE_VT_MSGTYPE_ACK))
899 return IXGBE_ERR_MBX;
901 /* record and validate values from message */
902 hw->mac.max_tx_queues = msg[IXGBE_VF_TX_QUEUES];
903 if (hw->mac.max_tx_queues == 0 ||
904 hw->mac.max_tx_queues > IXGBE_VF_MAX_TX_QUEUES)
905 hw->mac.max_tx_queues = IXGBE_VF_MAX_TX_QUEUES;
907 hw->mac.max_rx_queues = msg[IXGBE_VF_RX_QUEUES];
908 if (hw->mac.max_rx_queues == 0 ||
909 hw->mac.max_rx_queues > IXGBE_VF_MAX_RX_QUEUES)
910 hw->mac.max_rx_queues = IXGBE_VF_MAX_RX_QUEUES;
912 *num_tcs = msg[IXGBE_VF_TRANS_VLAN];
913 /* in case of unknown state assume we cannot tag frames */
914 if (*num_tcs > hw->mac.max_rx_queues)
917 *default_tc = msg[IXGBE_VF_DEF_QUEUE];
918 /* default to queue 0 on out-of-bounds queue number */
919 if (*default_tc >= hw->mac.max_tx_queues)
926 static const struct ixgbe_mac_operations ixgbevf_mac_ops = {
927 .init_hw = ixgbevf_init_hw_vf,
928 .reset_hw = ixgbevf_reset_hw_vf,
929 .start_hw = ixgbevf_start_hw_vf,
930 .get_mac_addr = ixgbevf_get_mac_addr_vf,
931 .stop_adapter = ixgbevf_stop_hw_vf,
932 .setup_link = ixgbevf_setup_mac_link_vf,
933 .check_link = ixgbevf_check_mac_link_vf,
934 .negotiate_api_version = ixgbevf_negotiate_api_version_vf,
935 .set_rar = ixgbevf_set_rar_vf,
936 .update_mc_addr_list = ixgbevf_update_mc_addr_list_vf,
937 .update_xcast_mode = ixgbevf_update_xcast_mode,
938 .set_uc_addr = ixgbevf_set_uc_addr_vf,
939 .set_vfta = ixgbevf_set_vfta_vf,
940 .set_rlpml = ixgbevf_set_rlpml_vf,
943 static const struct ixgbe_mac_operations ixgbevf_hv_mac_ops = {
944 .init_hw = ixgbevf_init_hw_vf,
945 .reset_hw = ixgbevf_hv_reset_hw_vf,
946 .start_hw = ixgbevf_start_hw_vf,
947 .get_mac_addr = ixgbevf_get_mac_addr_vf,
948 .stop_adapter = ixgbevf_stop_hw_vf,
949 .setup_link = ixgbevf_setup_mac_link_vf,
950 .check_link = ixgbevf_hv_check_mac_link_vf,
951 .negotiate_api_version = ixgbevf_hv_negotiate_api_version_vf,
952 .set_rar = ixgbevf_hv_set_rar_vf,
953 .update_mc_addr_list = ixgbevf_hv_update_mc_addr_list_vf,
954 .update_xcast_mode = ixgbevf_hv_update_xcast_mode,
955 .set_uc_addr = ixgbevf_hv_set_uc_addr_vf,
956 .set_vfta = ixgbevf_hv_set_vfta_vf,
957 .set_rlpml = ixgbevf_hv_set_rlpml_vf,
960 const struct ixgbevf_info ixgbevf_82599_vf_info = {
961 .mac = ixgbe_mac_82599_vf,
962 .mac_ops = &ixgbevf_mac_ops,
965 const struct ixgbevf_info ixgbevf_82599_vf_hv_info = {
966 .mac = ixgbe_mac_82599_vf,
967 .mac_ops = &ixgbevf_hv_mac_ops,
970 const struct ixgbevf_info ixgbevf_X540_vf_info = {
971 .mac = ixgbe_mac_X540_vf,
972 .mac_ops = &ixgbevf_mac_ops,
975 const struct ixgbevf_info ixgbevf_X540_vf_hv_info = {
976 .mac = ixgbe_mac_X540_vf,
977 .mac_ops = &ixgbevf_hv_mac_ops,
980 const struct ixgbevf_info ixgbevf_X550_vf_info = {
981 .mac = ixgbe_mac_X550_vf,
982 .mac_ops = &ixgbevf_mac_ops,
985 const struct ixgbevf_info ixgbevf_X550_vf_hv_info = {
986 .mac = ixgbe_mac_X550_vf,
987 .mac_ops = &ixgbevf_hv_mac_ops,
990 const struct ixgbevf_info ixgbevf_X550EM_x_vf_info = {
991 .mac = ixgbe_mac_X550EM_x_vf,
992 .mac_ops = &ixgbevf_mac_ops,
995 const struct ixgbevf_info ixgbevf_X550EM_x_vf_hv_info = {
996 .mac = ixgbe_mac_X550EM_x_vf,
997 .mac_ops = &ixgbevf_hv_mac_ops,
1000 const struct ixgbevf_info ixgbevf_x550em_a_vf_info = {
1001 .mac = ixgbe_mac_x550em_a_vf,
1002 .mac_ops = &ixgbevf_mac_ops,