1 // SPDX-License-Identifier: GPL-2.0
2 /* Copyright(c) 1999 - 2018 Intel Corporation. */
7 /* On Hyper-V, to reset, we need to read from this offset
8 * from the PCI config space. This is the mechanism used on
9 * Hyper-V to support PF/VF communication.
11 #define IXGBE_HV_RESET_OFFSET 0x201
13 static inline s32 ixgbevf_write_msg_read_ack(struct ixgbe_hw *hw, u32 *msg,
14 u32 *retmsg, u16 size)
16 struct ixgbe_mbx_info *mbx = &hw->mbx;
17 s32 retval = mbx->ops.write_posted(hw, msg, size);
22 return mbx->ops.read_posted(hw, retmsg, size);
26 * ixgbevf_start_hw_vf - Prepare hardware for Tx/Rx
27 * @hw: pointer to hardware structure
29 * Starts the hardware by filling the bus info structure and media type, clears
30 * all on chip counters, initializes receive address registers, multicast
31 * table, VLAN filter table, calls routine to set up link and flow control
32 * settings, and leaves transmit and receive units disabled and uninitialized
34 static s32 ixgbevf_start_hw_vf(struct ixgbe_hw *hw)
36 /* Clear adapter stopped flag */
37 hw->adapter_stopped = false;
43 * ixgbevf_init_hw_vf - virtual function hardware initialization
44 * @hw: pointer to hardware structure
46 * Initialize the hardware by resetting the hardware and then starting
49 static s32 ixgbevf_init_hw_vf(struct ixgbe_hw *hw)
51 s32 status = hw->mac.ops.start_hw(hw);
53 hw->mac.ops.get_mac_addr(hw, hw->mac.addr);
59 * ixgbevf_reset_hw_vf - Performs hardware reset
60 * @hw: pointer to hardware structure
62 * Resets the hardware by resetting the transmit and receive units, masks and
63 * clears all interrupts.
65 static s32 ixgbevf_reset_hw_vf(struct ixgbe_hw *hw)
67 struct ixgbe_mbx_info *mbx = &hw->mbx;
68 u32 timeout = IXGBE_VF_INIT_TIMEOUT;
69 s32 ret_val = IXGBE_ERR_INVALID_MAC_ADDR;
70 u32 msgbuf[IXGBE_VF_PERMADDR_MSG_LEN];
71 u8 *addr = (u8 *)(&msgbuf[1]);
73 /* Call adapter stop to disable tx/rx and clear interrupts */
74 hw->mac.ops.stop_adapter(hw);
76 /* reset the api version */
77 hw->api_version = ixgbe_mbox_api_10;
79 IXGBE_WRITE_REG(hw, IXGBE_VFCTRL, IXGBE_CTRL_RST);
80 IXGBE_WRITE_FLUSH(hw);
82 /* we cannot reset while the RSTI / RSTD bits are asserted */
83 while (!mbx->ops.check_for_rst(hw) && timeout) {
89 return IXGBE_ERR_RESET_FAILED;
91 /* mailbox timeout can now become active */
92 mbx->timeout = IXGBE_VF_MBX_INIT_TIMEOUT;
94 msgbuf[0] = IXGBE_VF_RESET;
95 mbx->ops.write_posted(hw, msgbuf, 1);
99 /* set our "perm_addr" based on info provided by PF
100 * also set up the mc_filter_type which is piggy backed
101 * on the mac address in word 3
103 ret_val = mbx->ops.read_posted(hw, msgbuf, IXGBE_VF_PERMADDR_MSG_LEN);
107 /* New versions of the PF may NACK the reset return message
108 * to indicate that no MAC address has yet been assigned for
111 if (msgbuf[0] != (IXGBE_VF_RESET | IXGBE_VT_MSGTYPE_ACK) &&
112 msgbuf[0] != (IXGBE_VF_RESET | IXGBE_VT_MSGTYPE_NACK))
113 return IXGBE_ERR_INVALID_MAC_ADDR;
115 if (msgbuf[0] == (IXGBE_VF_RESET | IXGBE_VT_MSGTYPE_ACK))
116 ether_addr_copy(hw->mac.perm_addr, addr);
118 hw->mac.mc_filter_type = msgbuf[IXGBE_VF_MC_TYPE_WORD];
124 * Hyper-V variant; the VF/PF communication is through the PCI
126 * @hw: pointer to private hardware struct
128 static s32 ixgbevf_hv_reset_hw_vf(struct ixgbe_hw *hw)
130 #if IS_ENABLED(CONFIG_PCI_MMCONFIG)
131 struct ixgbevf_adapter *adapter = hw->back;
134 for (i = 0; i < 6; i++)
135 pci_read_config_byte(adapter->pdev,
136 (i + IXGBE_HV_RESET_OFFSET),
137 &hw->mac.perm_addr[i]);
140 pr_err("PCI_MMCONFIG needs to be enabled for Hyper-V\n");
146 * ixgbevf_stop_hw_vf - Generic stop Tx/Rx units
147 * @hw: pointer to hardware structure
149 * Sets the adapter_stopped flag within ixgbe_hw struct. Clears interrupts,
150 * disables transmit and receive units. The adapter_stopped flag is used by
151 * the shared code and drivers to determine if the adapter is in a stopped
152 * state and should not touch the hardware.
154 static s32 ixgbevf_stop_hw_vf(struct ixgbe_hw *hw)
156 u32 number_of_queues;
160 /* Set the adapter_stopped flag so other driver functions stop touching
163 hw->adapter_stopped = true;
165 /* Disable the receive unit by stopped each queue */
166 number_of_queues = hw->mac.max_rx_queues;
167 for (i = 0; i < number_of_queues; i++) {
168 reg_val = IXGBE_READ_REG(hw, IXGBE_VFRXDCTL(i));
169 if (reg_val & IXGBE_RXDCTL_ENABLE) {
170 reg_val &= ~IXGBE_RXDCTL_ENABLE;
171 IXGBE_WRITE_REG(hw, IXGBE_VFRXDCTL(i), reg_val);
175 IXGBE_WRITE_FLUSH(hw);
177 /* Clear interrupt mask to stop from interrupts being generated */
178 IXGBE_WRITE_REG(hw, IXGBE_VTEIMC, IXGBE_VF_IRQ_CLEAR_MASK);
180 /* Clear any pending interrupts */
181 IXGBE_READ_REG(hw, IXGBE_VTEICR);
183 /* Disable the transmit unit. Each queue must be disabled. */
184 number_of_queues = hw->mac.max_tx_queues;
185 for (i = 0; i < number_of_queues; i++) {
186 reg_val = IXGBE_READ_REG(hw, IXGBE_VFTXDCTL(i));
187 if (reg_val & IXGBE_TXDCTL_ENABLE) {
188 reg_val &= ~IXGBE_TXDCTL_ENABLE;
189 IXGBE_WRITE_REG(hw, IXGBE_VFTXDCTL(i), reg_val);
197 * ixgbevf_mta_vector - Determines bit-vector in multicast table to set
198 * @hw: pointer to hardware structure
199 * @mc_addr: the multicast address
201 * Extracts the 12 bits, from a multicast address, to determine which
202 * bit-vector to set in the multicast table. The hardware uses 12 bits, from
203 * incoming Rx multicast addresses, to determine the bit-vector to check in
204 * the MTA. Which of the 4 combination, of 12-bits, the hardware uses is set
205 * by the MO field of the MCSTCTRL. The MO field is set during initialization
208 static s32 ixgbevf_mta_vector(struct ixgbe_hw *hw, u8 *mc_addr)
212 switch (hw->mac.mc_filter_type) {
213 case 0: /* use bits [47:36] of the address */
214 vector = ((mc_addr[4] >> 4) | (((u16)mc_addr[5]) << 4));
216 case 1: /* use bits [46:35] of the address */
217 vector = ((mc_addr[4] >> 3) | (((u16)mc_addr[5]) << 5));
219 case 2: /* use bits [45:34] of the address */
220 vector = ((mc_addr[4] >> 2) | (((u16)mc_addr[5]) << 6));
222 case 3: /* use bits [43:32] of the address */
223 vector = ((mc_addr[4]) | (((u16)mc_addr[5]) << 8));
225 default: /* Invalid mc_filter_type */
229 /* vector can only be 12-bits or boundary will be exceeded */
235 * ixgbevf_get_mac_addr_vf - Read device MAC address
236 * @hw: pointer to the HW structure
237 * @mac_addr: pointer to storage for retrieved MAC address
239 static s32 ixgbevf_get_mac_addr_vf(struct ixgbe_hw *hw, u8 *mac_addr)
241 ether_addr_copy(mac_addr, hw->mac.perm_addr);
246 static s32 ixgbevf_set_uc_addr_vf(struct ixgbe_hw *hw, u32 index, u8 *addr)
248 u32 msgbuf[3], msgbuf_chk;
249 u8 *msg_addr = (u8 *)(&msgbuf[1]);
252 memset(msgbuf, 0, sizeof(msgbuf));
253 /* If index is one then this is the start of a new list and needs
254 * indication to the PF so it can do it's own list management.
255 * If it is zero then that tells the PF to just clear all of
256 * this VF's macvlans and there is no new list.
258 msgbuf[0] |= index << IXGBE_VT_MSGINFO_SHIFT;
259 msgbuf[0] |= IXGBE_VF_SET_MACVLAN;
260 msgbuf_chk = msgbuf[0];
263 ether_addr_copy(msg_addr, addr);
265 ret_val = ixgbevf_write_msg_read_ack(hw, msgbuf, msgbuf,
268 msgbuf[0] &= ~IXGBE_VT_MSGTYPE_CTS;
270 if (msgbuf[0] == (msgbuf_chk | IXGBE_VT_MSGTYPE_NACK))
277 static s32 ixgbevf_hv_set_uc_addr_vf(struct ixgbe_hw *hw, u32 index, u8 *addr)
283 * ixgbevf_get_reta_locked - get the RSS redirection table (RETA) contents.
284 * @hw: pointer to hardware structure
285 * @reta: buffer to fill with RETA contents.
286 * @num_rx_queues: Number of Rx queues configured for this port
288 * The "reta" buffer should be big enough to contain 32 registers.
290 * Returns: 0 on success.
291 * if API doesn't support this operation - (-EOPNOTSUPP).
293 int ixgbevf_get_reta_locked(struct ixgbe_hw *hw, u32 *reta, int num_rx_queues)
296 u32 msgbuf[IXGBE_VFMAILBOX_SIZE];
297 u32 *hw_reta = &msgbuf[1];
300 /* We have to use a mailbox for 82599 and x540 devices only.
301 * For these devices RETA has 128 entries.
302 * Also these VFs support up to 4 RSS queues. Therefore PF will compress
303 * 16 RETA entries in each DWORD giving 2 bits to each entry.
305 int dwords = IXGBEVF_82599_RETA_SIZE / 16;
307 /* We support the RSS querying for 82599 and x540 devices only.
308 * Thus return an error if API doesn't support RETA querying or querying
309 * is not supported for this device type.
311 switch (hw->api_version) {
312 case ixgbe_mbox_api_13:
313 case ixgbe_mbox_api_12:
314 if (hw->mac.type < ixgbe_mac_X550_vf)
321 msgbuf[0] = IXGBE_VF_GET_RETA;
323 err = hw->mbx.ops.write_posted(hw, msgbuf, 1);
328 err = hw->mbx.ops.read_posted(hw, msgbuf, dwords + 1);
333 msgbuf[0] &= ~IXGBE_VT_MSGTYPE_CTS;
335 /* If the operation has been refused by a PF return -EPERM */
336 if (msgbuf[0] == (IXGBE_VF_GET_RETA | IXGBE_VT_MSGTYPE_NACK))
339 /* If we didn't get an ACK there must have been
340 * some sort of mailbox error so we should treat it
343 if (msgbuf[0] != (IXGBE_VF_GET_RETA | IXGBE_VT_MSGTYPE_ACK))
344 return IXGBE_ERR_MBX;
346 /* ixgbevf doesn't support more than 2 queues at the moment */
347 if (num_rx_queues > 1)
350 for (i = 0; i < dwords; i++)
351 for (j = 0; j < 16; j++)
352 reta[i * 16 + j] = (hw_reta[i] >> (2 * j)) & mask;
358 * ixgbevf_get_rss_key_locked - get the RSS Random Key
359 * @hw: pointer to the HW structure
360 * @rss_key: buffer to fill with RSS Hash Key contents.
362 * The "rss_key" buffer should be big enough to contain 10 registers.
364 * Returns: 0 on success.
365 * if API doesn't support this operation - (-EOPNOTSUPP).
367 int ixgbevf_get_rss_key_locked(struct ixgbe_hw *hw, u8 *rss_key)
370 u32 msgbuf[IXGBE_VFMAILBOX_SIZE];
372 /* We currently support the RSS Random Key retrieval for 82599 and x540
375 * Thus return an error if API doesn't support RSS Random Key retrieval
376 * or if the operation is not supported for this device type.
378 switch (hw->api_version) {
379 case ixgbe_mbox_api_13:
380 case ixgbe_mbox_api_12:
381 if (hw->mac.type < ixgbe_mac_X550_vf)
388 msgbuf[0] = IXGBE_VF_GET_RSS_KEY;
389 err = hw->mbx.ops.write_posted(hw, msgbuf, 1);
394 err = hw->mbx.ops.read_posted(hw, msgbuf, 11);
399 msgbuf[0] &= ~IXGBE_VT_MSGTYPE_CTS;
401 /* If the operation has been refused by a PF return -EPERM */
402 if (msgbuf[0] == (IXGBE_VF_GET_RSS_KEY | IXGBE_VT_MSGTYPE_NACK))
405 /* If we didn't get an ACK there must have been
406 * some sort of mailbox error so we should treat it
409 if (msgbuf[0] != (IXGBE_VF_GET_RSS_KEY | IXGBE_VT_MSGTYPE_ACK))
410 return IXGBE_ERR_MBX;
412 memcpy(rss_key, msgbuf + 1, IXGBEVF_RSS_HASH_KEY_SIZE);
418 * ixgbevf_set_rar_vf - set device MAC address
419 * @hw: pointer to hardware structure
420 * @index: Receive address register to write
421 * @addr: Address to put into receive address register
422 * @vmdq: Unused in this implementation
424 static s32 ixgbevf_set_rar_vf(struct ixgbe_hw *hw, u32 index, u8 *addr,
428 u8 *msg_addr = (u8 *)(&msgbuf[1]);
431 memset(msgbuf, 0, sizeof(msgbuf));
432 msgbuf[0] = IXGBE_VF_SET_MAC_ADDR;
433 ether_addr_copy(msg_addr, addr);
435 ret_val = ixgbevf_write_msg_read_ack(hw, msgbuf, msgbuf,
437 msgbuf[0] &= ~IXGBE_VT_MSGTYPE_CTS;
439 /* if nacked the address was rejected, use "perm_addr" */
441 (msgbuf[0] == (IXGBE_VF_SET_MAC_ADDR | IXGBE_VT_MSGTYPE_NACK))) {
442 ixgbevf_get_mac_addr_vf(hw, hw->mac.addr);
443 return IXGBE_ERR_MBX;
450 * ixgbevf_hv_set_rar_vf - set device MAC address Hyper-V variant
451 * @hw: pointer to hardware structure
452 * @index: Receive address register to write
453 * @addr: Address to put into receive address register
454 * @vmdq: Unused in this implementation
456 * We don't really allow setting the device MAC address. However,
457 * if the address being set is the permanent MAC address we will
460 static s32 ixgbevf_hv_set_rar_vf(struct ixgbe_hw *hw, u32 index, u8 *addr,
463 if (ether_addr_equal(addr, hw->mac.perm_addr))
470 * ixgbevf_update_mc_addr_list_vf - Update Multicast addresses
471 * @hw: pointer to the HW structure
472 * @netdev: pointer to net device structure
474 * Updates the Multicast Table Array.
476 static s32 ixgbevf_update_mc_addr_list_vf(struct ixgbe_hw *hw,
477 struct net_device *netdev)
479 struct netdev_hw_addr *ha;
480 u32 msgbuf[IXGBE_VFMAILBOX_SIZE];
481 u16 *vector_list = (u16 *)&msgbuf[1];
484 /* Each entry in the list uses 1 16 bit word. We have 30
485 * 16 bit words available in our HW msg buffer (minus 1 for the
486 * msg type). That's 30 hash values if we pack 'em right. If
487 * there are more than 30 MC addresses to add then punt the
488 * extras for now and then add code to handle more than 30 later.
489 * It would be unusual for a server to request that many multi-cast
490 * addresses except for in large enterprise network environments.
493 cnt = netdev_mc_count(netdev);
496 msgbuf[0] = IXGBE_VF_SET_MULTICAST;
497 msgbuf[0] |= cnt << IXGBE_VT_MSGINFO_SHIFT;
500 netdev_for_each_mc_addr(ha, netdev) {
503 if (is_link_local_ether_addr(ha->addr))
506 vector_list[i++] = ixgbevf_mta_vector(hw, ha->addr);
509 ixgbevf_write_msg_read_ack(hw, msgbuf, msgbuf, IXGBE_VFMAILBOX_SIZE);
515 * Hyper-V variant - just a stub.
519 static s32 ixgbevf_hv_update_mc_addr_list_vf(struct ixgbe_hw *hw,
520 struct net_device *netdev)
526 * ixgbevf_update_xcast_mode - Update Multicast mode
527 * @hw: pointer to the HW structure
528 * @xcast_mode: new multicast mode
530 * Updates the Multicast Mode of VF.
532 static s32 ixgbevf_update_xcast_mode(struct ixgbe_hw *hw, int xcast_mode)
537 switch (hw->api_version) {
538 case ixgbe_mbox_api_12:
539 /* promisc introduced in 1.3 version */
540 if (xcast_mode == IXGBEVF_XCAST_MODE_PROMISC)
543 case ixgbe_mbox_api_13:
549 msgbuf[0] = IXGBE_VF_UPDATE_XCAST_MODE;
550 msgbuf[1] = xcast_mode;
552 err = ixgbevf_write_msg_read_ack(hw, msgbuf, msgbuf,
557 msgbuf[0] &= ~IXGBE_VT_MSGTYPE_CTS;
558 if (msgbuf[0] == (IXGBE_VF_UPDATE_XCAST_MODE | IXGBE_VT_MSGTYPE_NACK))
565 * Hyper-V variant - just a stub.
567 * @xcast_mode: unused
569 static s32 ixgbevf_hv_update_xcast_mode(struct ixgbe_hw *hw, int xcast_mode)
575 * ixgbevf_set_vfta_vf - Set/Unset VLAN filter table address
576 * @hw: pointer to the HW structure
577 * @vlan: 12 bit VLAN ID
578 * @vind: unused by VF drivers
579 * @vlan_on: if true then set bit, else clear bit
581 static s32 ixgbevf_set_vfta_vf(struct ixgbe_hw *hw, u32 vlan, u32 vind,
587 msgbuf[0] = IXGBE_VF_SET_VLAN;
589 /* Setting the 8 bit field MSG INFO to TRUE indicates "add" */
590 msgbuf[0] |= vlan_on << IXGBE_VT_MSGINFO_SHIFT;
592 err = ixgbevf_write_msg_read_ack(hw, msgbuf, msgbuf,
597 /* remove extra bits from the message */
598 msgbuf[0] &= ~IXGBE_VT_MSGTYPE_CTS;
599 msgbuf[0] &= ~(0xFF << IXGBE_VT_MSGINFO_SHIFT);
601 if (msgbuf[0] != (IXGBE_VF_SET_VLAN | IXGBE_VT_MSGTYPE_ACK))
602 err = IXGBE_ERR_INVALID_ARGUMENT;
609 * Hyper-V variant - just a stub.
615 static s32 ixgbevf_hv_set_vfta_vf(struct ixgbe_hw *hw, u32 vlan, u32 vind,
622 * ixgbevf_setup_mac_link_vf - Setup MAC link settings
623 * @hw: pointer to hardware structure
624 * @speed: Unused in this implementation
625 * @autoneg: Unused in this implementation
626 * @autoneg_wait_to_complete: Unused in this implementation
628 * Do nothing and return success. VF drivers are not allowed to change
629 * global settings. Maintained for driver compatibility.
631 static s32 ixgbevf_setup_mac_link_vf(struct ixgbe_hw *hw,
632 ixgbe_link_speed speed, bool autoneg,
633 bool autoneg_wait_to_complete)
639 * ixgbevf_check_mac_link_vf - Get link/speed status
640 * @hw: pointer to hardware structure
641 * @speed: pointer to link speed
642 * @link_up: true is link is up, false otherwise
643 * @autoneg_wait_to_complete: unused
645 * Reads the links register to determine if link is up and the current speed
647 static s32 ixgbevf_check_mac_link_vf(struct ixgbe_hw *hw,
648 ixgbe_link_speed *speed,
650 bool autoneg_wait_to_complete)
652 struct ixgbe_mbx_info *mbx = &hw->mbx;
653 struct ixgbe_mac_info *mac = &hw->mac;
658 /* If we were hit with a reset drop the link */
659 if (!mbx->ops.check_for_rst(hw) || !mbx->timeout)
660 mac->get_link_status = true;
662 if (!mac->get_link_status)
665 /* if link status is down no point in checking to see if pf is up */
666 links_reg = IXGBE_READ_REG(hw, IXGBE_VFLINKS);
667 if (!(links_reg & IXGBE_LINKS_UP))
670 /* for SFP+ modules and DA cables on 82599 it can take up to 500usecs
671 * before the link status is correct
673 if (mac->type == ixgbe_mac_82599_vf) {
676 for (i = 0; i < 5; i++) {
678 links_reg = IXGBE_READ_REG(hw, IXGBE_VFLINKS);
680 if (!(links_reg & IXGBE_LINKS_UP))
685 switch (links_reg & IXGBE_LINKS_SPEED_82599) {
686 case IXGBE_LINKS_SPEED_10G_82599:
687 *speed = IXGBE_LINK_SPEED_10GB_FULL;
689 case IXGBE_LINKS_SPEED_1G_82599:
690 *speed = IXGBE_LINK_SPEED_1GB_FULL;
692 case IXGBE_LINKS_SPEED_100_82599:
693 *speed = IXGBE_LINK_SPEED_100_FULL;
697 /* if the read failed it could just be a mailbox collision, best wait
698 * until we are called again and don't report an error
700 if (mbx->ops.read(hw, &in_msg, 1))
703 if (!(in_msg & IXGBE_VT_MSGTYPE_CTS)) {
704 /* msg is not CTS and is NACK we must have lost CTS status */
705 if (in_msg & IXGBE_VT_MSGTYPE_NACK)
710 /* the pf is talking, if we timed out in the past we reinit */
716 /* if we passed all the tests above then the link is up and we no
717 * longer need to check for link
719 mac->get_link_status = false;
722 *link_up = !mac->get_link_status;
727 * Hyper-V variant; there is no mailbox communication.
728 * @hw: pointer to private hardware struct
729 * @speed: pointer to link speed
730 * @link_up: true is link is up, false otherwise
731 * @autoneg_wait_to_complete: unused
733 static s32 ixgbevf_hv_check_mac_link_vf(struct ixgbe_hw *hw,
734 ixgbe_link_speed *speed,
736 bool autoneg_wait_to_complete)
738 struct ixgbe_mbx_info *mbx = &hw->mbx;
739 struct ixgbe_mac_info *mac = &hw->mac;
742 /* If we were hit with a reset drop the link */
743 if (!mbx->ops.check_for_rst(hw) || !mbx->timeout)
744 mac->get_link_status = true;
746 if (!mac->get_link_status)
749 /* if link status is down no point in checking to see if pf is up */
750 links_reg = IXGBE_READ_REG(hw, IXGBE_VFLINKS);
751 if (!(links_reg & IXGBE_LINKS_UP))
754 /* for SFP+ modules and DA cables on 82599 it can take up to 500usecs
755 * before the link status is correct
757 if (mac->type == ixgbe_mac_82599_vf) {
760 for (i = 0; i < 5; i++) {
762 links_reg = IXGBE_READ_REG(hw, IXGBE_VFLINKS);
764 if (!(links_reg & IXGBE_LINKS_UP))
769 switch (links_reg & IXGBE_LINKS_SPEED_82599) {
770 case IXGBE_LINKS_SPEED_10G_82599:
771 *speed = IXGBE_LINK_SPEED_10GB_FULL;
773 case IXGBE_LINKS_SPEED_1G_82599:
774 *speed = IXGBE_LINK_SPEED_1GB_FULL;
776 case IXGBE_LINKS_SPEED_100_82599:
777 *speed = IXGBE_LINK_SPEED_100_FULL;
781 /* if we passed all the tests above then the link is up and we no
782 * longer need to check for link
784 mac->get_link_status = false;
787 *link_up = !mac->get_link_status;
792 * ixgbevf_set_rlpml_vf - Set the maximum receive packet length
793 * @hw: pointer to the HW structure
794 * @max_size: value to assign to max frame size
796 static s32 ixgbevf_set_rlpml_vf(struct ixgbe_hw *hw, u16 max_size)
801 msgbuf[0] = IXGBE_VF_SET_LPE;
802 msgbuf[1] = max_size;
804 ret_val = ixgbevf_write_msg_read_ack(hw, msgbuf, msgbuf,
808 if ((msgbuf[0] & IXGBE_VF_SET_LPE) &&
809 (msgbuf[0] & IXGBE_VT_MSGTYPE_NACK))
810 return IXGBE_ERR_MBX;
816 * ixgbevf_hv_set_rlpml_vf - Set the maximum receive packet length
817 * @hw: pointer to the HW structure
818 * @max_size: value to assign to max frame size
821 static s32 ixgbevf_hv_set_rlpml_vf(struct ixgbe_hw *hw, u16 max_size)
825 /* If we are on Hyper-V, we implement this functionality
828 reg = IXGBE_READ_REG(hw, IXGBE_VFRXDCTL(0));
830 reg |= ((max_size + 4) | IXGBE_RXDCTL_RLPML_EN);
831 IXGBE_WRITE_REG(hw, IXGBE_VFRXDCTL(0), reg);
837 * ixgbevf_negotiate_api_version_vf - Negotiate supported API version
838 * @hw: pointer to the HW structure
839 * @api: integer containing requested API version
841 static int ixgbevf_negotiate_api_version_vf(struct ixgbe_hw *hw, int api)
846 /* Negotiate the mailbox API version */
847 msg[0] = IXGBE_VF_API_NEGOTIATE;
851 err = ixgbevf_write_msg_read_ack(hw, msg, msg, ARRAY_SIZE(msg));
853 msg[0] &= ~IXGBE_VT_MSGTYPE_CTS;
855 /* Store value and return 0 on success */
856 if (msg[0] == (IXGBE_VF_API_NEGOTIATE | IXGBE_VT_MSGTYPE_ACK)) {
857 hw->api_version = api;
861 err = IXGBE_ERR_INVALID_ARGUMENT;
868 * ixgbevf_hv_negotiate_api_version_vf - Negotiate supported API version
869 * @hw: pointer to the HW structure
870 * @api: integer containing requested API version
871 * Hyper-V version - only ixgbe_mbox_api_10 supported.
873 static int ixgbevf_hv_negotiate_api_version_vf(struct ixgbe_hw *hw, int api)
875 /* Hyper-V only supports api version ixgbe_mbox_api_10 */
876 if (api != ixgbe_mbox_api_10)
877 return IXGBE_ERR_INVALID_ARGUMENT;
882 int ixgbevf_get_queues(struct ixgbe_hw *hw, unsigned int *num_tcs,
883 unsigned int *default_tc)
888 /* do nothing if API doesn't support ixgbevf_get_queues */
889 switch (hw->api_version) {
890 case ixgbe_mbox_api_11:
891 case ixgbe_mbox_api_12:
892 case ixgbe_mbox_api_13:
898 /* Fetch queue configuration from the PF */
899 msg[0] = IXGBE_VF_GET_QUEUE;
900 msg[1] = msg[2] = msg[3] = msg[4] = 0;
902 err = ixgbevf_write_msg_read_ack(hw, msg, msg, ARRAY_SIZE(msg));
904 msg[0] &= ~IXGBE_VT_MSGTYPE_CTS;
906 /* if we we didn't get an ACK there must have been
907 * some sort of mailbox error so we should treat it
910 if (msg[0] != (IXGBE_VF_GET_QUEUE | IXGBE_VT_MSGTYPE_ACK))
911 return IXGBE_ERR_MBX;
913 /* record and validate values from message */
914 hw->mac.max_tx_queues = msg[IXGBE_VF_TX_QUEUES];
915 if (hw->mac.max_tx_queues == 0 ||
916 hw->mac.max_tx_queues > IXGBE_VF_MAX_TX_QUEUES)
917 hw->mac.max_tx_queues = IXGBE_VF_MAX_TX_QUEUES;
919 hw->mac.max_rx_queues = msg[IXGBE_VF_RX_QUEUES];
920 if (hw->mac.max_rx_queues == 0 ||
921 hw->mac.max_rx_queues > IXGBE_VF_MAX_RX_QUEUES)
922 hw->mac.max_rx_queues = IXGBE_VF_MAX_RX_QUEUES;
924 *num_tcs = msg[IXGBE_VF_TRANS_VLAN];
925 /* in case of unknown state assume we cannot tag frames */
926 if (*num_tcs > hw->mac.max_rx_queues)
929 *default_tc = msg[IXGBE_VF_DEF_QUEUE];
930 /* default to queue 0 on out-of-bounds queue number */
931 if (*default_tc >= hw->mac.max_tx_queues)
938 static const struct ixgbe_mac_operations ixgbevf_mac_ops = {
939 .init_hw = ixgbevf_init_hw_vf,
940 .reset_hw = ixgbevf_reset_hw_vf,
941 .start_hw = ixgbevf_start_hw_vf,
942 .get_mac_addr = ixgbevf_get_mac_addr_vf,
943 .stop_adapter = ixgbevf_stop_hw_vf,
944 .setup_link = ixgbevf_setup_mac_link_vf,
945 .check_link = ixgbevf_check_mac_link_vf,
946 .negotiate_api_version = ixgbevf_negotiate_api_version_vf,
947 .set_rar = ixgbevf_set_rar_vf,
948 .update_mc_addr_list = ixgbevf_update_mc_addr_list_vf,
949 .update_xcast_mode = ixgbevf_update_xcast_mode,
950 .set_uc_addr = ixgbevf_set_uc_addr_vf,
951 .set_vfta = ixgbevf_set_vfta_vf,
952 .set_rlpml = ixgbevf_set_rlpml_vf,
955 static const struct ixgbe_mac_operations ixgbevf_hv_mac_ops = {
956 .init_hw = ixgbevf_init_hw_vf,
957 .reset_hw = ixgbevf_hv_reset_hw_vf,
958 .start_hw = ixgbevf_start_hw_vf,
959 .get_mac_addr = ixgbevf_get_mac_addr_vf,
960 .stop_adapter = ixgbevf_stop_hw_vf,
961 .setup_link = ixgbevf_setup_mac_link_vf,
962 .check_link = ixgbevf_hv_check_mac_link_vf,
963 .negotiate_api_version = ixgbevf_hv_negotiate_api_version_vf,
964 .set_rar = ixgbevf_hv_set_rar_vf,
965 .update_mc_addr_list = ixgbevf_hv_update_mc_addr_list_vf,
966 .update_xcast_mode = ixgbevf_hv_update_xcast_mode,
967 .set_uc_addr = ixgbevf_hv_set_uc_addr_vf,
968 .set_vfta = ixgbevf_hv_set_vfta_vf,
969 .set_rlpml = ixgbevf_hv_set_rlpml_vf,
972 const struct ixgbevf_info ixgbevf_82599_vf_info = {
973 .mac = ixgbe_mac_82599_vf,
974 .mac_ops = &ixgbevf_mac_ops,
977 const struct ixgbevf_info ixgbevf_82599_vf_hv_info = {
978 .mac = ixgbe_mac_82599_vf,
979 .mac_ops = &ixgbevf_hv_mac_ops,
982 const struct ixgbevf_info ixgbevf_X540_vf_info = {
983 .mac = ixgbe_mac_X540_vf,
984 .mac_ops = &ixgbevf_mac_ops,
987 const struct ixgbevf_info ixgbevf_X540_vf_hv_info = {
988 .mac = ixgbe_mac_X540_vf,
989 .mac_ops = &ixgbevf_hv_mac_ops,
992 const struct ixgbevf_info ixgbevf_X550_vf_info = {
993 .mac = ixgbe_mac_X550_vf,
994 .mac_ops = &ixgbevf_mac_ops,
997 const struct ixgbevf_info ixgbevf_X550_vf_hv_info = {
998 .mac = ixgbe_mac_X550_vf,
999 .mac_ops = &ixgbevf_hv_mac_ops,
1002 const struct ixgbevf_info ixgbevf_X550EM_x_vf_info = {
1003 .mac = ixgbe_mac_X550EM_x_vf,
1004 .mac_ops = &ixgbevf_mac_ops,
1007 const struct ixgbevf_info ixgbevf_X550EM_x_vf_hv_info = {
1008 .mac = ixgbe_mac_X550EM_x_vf,
1009 .mac_ops = &ixgbevf_hv_mac_ops,
1012 const struct ixgbevf_info ixgbevf_x550em_a_vf_info = {
1013 .mac = ixgbe_mac_x550em_a_vf,
1014 .mac_ops = &ixgbevf_mac_ops,