1 /*******************************************************************************
3 Copyright (c) 2001-2015, Intel Corporation
6 Redistribution and use in source and binary forms, with or without
7 modification, are permitted provided that the following conditions are met:
9 1. Redistributions of source code must retain the above copyright notice,
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13 notice, this list of conditions and the following disclaimer in the
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17 contributors may be used to endorse or promote products derived from
18 this software without specific prior written permission.
20 THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
21 AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
22 IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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30 POSSIBILITY OF SUCH DAMAGE.
32 ***************************************************************************/
35 #include "ixgbe_api.h"
36 #include "ixgbe_type.h"
39 #ifndef IXGBE_VFWRITE_REG
40 #define IXGBE_VFWRITE_REG IXGBE_WRITE_REG
42 #ifndef IXGBE_VFREAD_REG
43 #define IXGBE_VFREAD_REG IXGBE_READ_REG
47 * ixgbe_init_ops_vf - Initialize the pointers for vf
48 * @hw: pointer to hardware structure
50 * This will assign function pointers, adapter-specific functions can
51 * override the assignment of generic function pointers by assigning
52 * their own adapter-specific function pointers.
53 * Does not touch the hardware.
55 s32 ixgbe_init_ops_vf(struct ixgbe_hw *hw)
58 hw->mac.ops.init_hw = ixgbe_init_hw_vf;
59 hw->mac.ops.reset_hw = ixgbe_reset_hw_vf;
60 hw->mac.ops.start_hw = ixgbe_start_hw_vf;
61 /* Cannot clear stats on VF */
62 hw->mac.ops.clear_hw_cntrs = NULL;
63 hw->mac.ops.get_media_type = NULL;
64 hw->mac.ops.get_mac_addr = ixgbe_get_mac_addr_vf;
65 hw->mac.ops.stop_adapter = ixgbe_stop_adapter_vf;
66 hw->mac.ops.get_bus_info = NULL;
69 hw->mac.ops.setup_link = ixgbe_setup_mac_link_vf;
70 hw->mac.ops.check_link = ixgbe_check_mac_link_vf;
71 hw->mac.ops.get_link_capabilities = NULL;
73 /* RAR, Multicast, VLAN */
74 hw->mac.ops.set_rar = ixgbe_set_rar_vf;
75 hw->mac.ops.set_uc_addr = ixgbevf_set_uc_addr_vf;
76 hw->mac.ops.init_rx_addrs = NULL;
77 hw->mac.ops.update_mc_addr_list = ixgbe_update_mc_addr_list_vf;
78 hw->mac.ops.update_xcast_mode = ixgbevf_update_xcast_mode;
79 hw->mac.ops.enable_mc = NULL;
80 hw->mac.ops.disable_mc = NULL;
81 hw->mac.ops.clear_vfta = NULL;
82 hw->mac.ops.set_vfta = ixgbe_set_vfta_vf;
84 hw->mac.max_tx_queues = 1;
85 hw->mac.max_rx_queues = 1;
87 hw->mbx.ops.init_params = ixgbe_init_mbx_params_vf;
92 /* ixgbe_virt_clr_reg - Set register to default (power on) state.
93 * @hw: pointer to hardware structure
95 static void ixgbe_virt_clr_reg(struct ixgbe_hw *hw)
102 /* VRSRRCTL default values (BSIZEPACKET = 2048, BSIZEHEADER = 256) */
103 vfsrrctl = 0x100 << IXGBE_SRRCTL_BSIZEHDRSIZE_SHIFT;
104 vfsrrctl |= 0x800 >> IXGBE_SRRCTL_BSIZEPKT_SHIFT;
106 /* DCA_RXCTRL default value */
107 vfdca_rxctrl = IXGBE_DCA_RXCTRL_DESC_RRO_EN |
108 IXGBE_DCA_RXCTRL_DATA_WRO_EN |
109 IXGBE_DCA_RXCTRL_HEAD_WRO_EN;
111 /* DCA_TXCTRL default value */
112 vfdca_txctrl = IXGBE_DCA_TXCTRL_DESC_RRO_EN |
113 IXGBE_DCA_TXCTRL_DESC_WRO_EN |
114 IXGBE_DCA_TXCTRL_DATA_RRO_EN;
116 IXGBE_WRITE_REG(hw, IXGBE_VFPSRTYPE, 0);
118 for (i = 0; i < 7; i++) {
119 IXGBE_WRITE_REG(hw, IXGBE_VFRDH(i), 0);
120 IXGBE_WRITE_REG(hw, IXGBE_VFRDT(i), 0);
121 IXGBE_WRITE_REG(hw, IXGBE_VFRXDCTL(i), 0);
122 IXGBE_WRITE_REG(hw, IXGBE_VFSRRCTL(i), vfsrrctl);
123 IXGBE_WRITE_REG(hw, IXGBE_VFTDH(i), 0);
124 IXGBE_WRITE_REG(hw, IXGBE_VFTDT(i), 0);
125 IXGBE_WRITE_REG(hw, IXGBE_VFTXDCTL(i), 0);
126 IXGBE_WRITE_REG(hw, IXGBE_VFTDWBAH(i), 0);
127 IXGBE_WRITE_REG(hw, IXGBE_VFTDWBAL(i), 0);
128 IXGBE_WRITE_REG(hw, IXGBE_VFDCA_RXCTRL(i), vfdca_rxctrl);
129 IXGBE_WRITE_REG(hw, IXGBE_VFDCA_TXCTRL(i), vfdca_txctrl);
132 IXGBE_WRITE_FLUSH(hw);
136 * ixgbe_start_hw_vf - Prepare hardware for Tx/Rx
137 * @hw: pointer to hardware structure
139 * Starts the hardware by filling the bus info structure and media type, clears
140 * all on chip counters, initializes receive address registers, multicast
141 * table, VLAN filter table, calls routine to set up link and flow control
142 * settings, and leaves transmit and receive units disabled and uninitialized
144 s32 ixgbe_start_hw_vf(struct ixgbe_hw *hw)
146 /* Clear adapter stopped flag */
147 hw->adapter_stopped = false;
149 return IXGBE_SUCCESS;
153 * ixgbe_init_hw_vf - virtual function hardware initialization
154 * @hw: pointer to hardware structure
156 * Initialize the hardware by resetting the hardware and then starting
159 s32 ixgbe_init_hw_vf(struct ixgbe_hw *hw)
161 s32 status = hw->mac.ops.start_hw(hw);
163 hw->mac.ops.get_mac_addr(hw, hw->mac.addr);
169 * ixgbe_reset_hw_vf - Performs hardware reset
170 * @hw: pointer to hardware structure
172 * Resets the hardware by reseting the transmit and receive units, masks and
173 * clears all interrupts.
175 s32 ixgbe_reset_hw_vf(struct ixgbe_hw *hw)
177 struct ixgbe_mbx_info *mbx = &hw->mbx;
178 u32 timeout = IXGBE_VF_INIT_TIMEOUT;
179 s32 ret_val = IXGBE_ERR_INVALID_MAC_ADDR;
180 u32 msgbuf[IXGBE_VF_PERMADDR_MSG_LEN];
181 u8 *addr = (u8 *)(&msgbuf[1]);
183 DEBUGFUNC("ixgbevf_reset_hw_vf");
185 /* Call adapter stop to disable tx/rx and clear interrupts */
186 hw->mac.ops.stop_adapter(hw);
188 /* reset the api version */
189 hw->api_version = ixgbe_mbox_api_10;
191 DEBUGOUT("Issuing a function level reset to MAC\n");
193 IXGBE_VFWRITE_REG(hw, IXGBE_VFCTRL, IXGBE_CTRL_RST);
194 IXGBE_WRITE_FLUSH(hw);
198 /* we cannot reset while the RSTI / RSTD bits are asserted */
199 while (!mbx->ops.check_for_rst(hw, 0) && timeout) {
205 return IXGBE_ERR_RESET_FAILED;
207 /* Reset VF registers to initial values */
208 ixgbe_virt_clr_reg(hw);
210 /* mailbox timeout can now become active */
211 mbx->timeout = IXGBE_VF_MBX_INIT_TIMEOUT;
213 msgbuf[0] = IXGBE_VF_RESET;
214 mbx->ops.write_posted(hw, msgbuf, 1, 0);
219 * set our "perm_addr" based on info provided by PF
220 * also set up the mc_filter_type which is piggy backed
221 * on the mac address in word 3
223 ret_val = mbx->ops.read_posted(hw, msgbuf,
224 IXGBE_VF_PERMADDR_MSG_LEN, 0);
228 if (msgbuf[0] != (IXGBE_VF_RESET | IXGBE_VT_MSGTYPE_ACK) &&
229 msgbuf[0] != (IXGBE_VF_RESET | IXGBE_VT_MSGTYPE_NACK))
230 return IXGBE_ERR_INVALID_MAC_ADDR;
232 if (msgbuf[0] == (IXGBE_VF_RESET | IXGBE_VT_MSGTYPE_ACK))
233 memcpy(hw->mac.perm_addr, addr, IXGBE_ETH_LENGTH_OF_ADDRESS);
235 hw->mac.mc_filter_type = msgbuf[IXGBE_VF_MC_TYPE_WORD];
241 * ixgbe_stop_adapter_vf - Generic stop Tx/Rx units
242 * @hw: pointer to hardware structure
244 * Sets the adapter_stopped flag within ixgbe_hw struct. Clears interrupts,
245 * disables transmit and receive units. The adapter_stopped flag is used by
246 * the shared code and drivers to determine if the adapter is in a stopped
247 * state and should not touch the hardware.
249 s32 ixgbe_stop_adapter_vf(struct ixgbe_hw *hw)
255 * Set the adapter_stopped flag so other driver functions stop touching
258 hw->adapter_stopped = true;
260 /* Clear interrupt mask to stop from interrupts being generated */
261 IXGBE_VFWRITE_REG(hw, IXGBE_VTEIMC, IXGBE_VF_IRQ_CLEAR_MASK);
263 /* Clear any pending interrupts, flush previous writes */
264 IXGBE_VFREAD_REG(hw, IXGBE_VTEICR);
266 /* Disable the transmit unit. Each queue must be disabled. */
267 for (i = 0; i < hw->mac.max_tx_queues; i++)
268 IXGBE_VFWRITE_REG(hw, IXGBE_VFTXDCTL(i), IXGBE_TXDCTL_SWFLSH);
270 /* Disable the receive unit by stopping each queue */
271 for (i = 0; i < hw->mac.max_rx_queues; i++) {
272 reg_val = IXGBE_VFREAD_REG(hw, IXGBE_VFRXDCTL(i));
273 reg_val &= ~IXGBE_RXDCTL_ENABLE;
274 IXGBE_VFWRITE_REG(hw, IXGBE_VFRXDCTL(i), reg_val);
276 /* Clear packet split and pool config */
277 IXGBE_WRITE_REG(hw, IXGBE_VFPSRTYPE, 0);
279 /* flush all queues disables */
280 IXGBE_WRITE_FLUSH(hw);
283 return IXGBE_SUCCESS;
287 * ixgbe_mta_vector - Determines bit-vector in multicast table to set
288 * @hw: pointer to hardware structure
289 * @mc_addr: the multicast address
291 * Extracts the 12 bits, from a multicast address, to determine which
292 * bit-vector to set in the multicast table. The hardware uses 12 bits, from
293 * incoming rx multicast addresses, to determine the bit-vector to check in
294 * the MTA. Which of the 4 combination, of 12-bits, the hardware uses is set
295 * by the MO field of the MCSTCTRL. The MO field is set during initialization
298 STATIC s32 ixgbe_mta_vector(struct ixgbe_hw *hw, u8 *mc_addr)
302 switch (hw->mac.mc_filter_type) {
303 case 0: /* use bits [47:36] of the address */
304 vector = ((mc_addr[4] >> 4) | (((u16)mc_addr[5]) << 4));
306 case 1: /* use bits [46:35] of the address */
307 vector = ((mc_addr[4] >> 3) | (((u16)mc_addr[5]) << 5));
309 case 2: /* use bits [45:34] of the address */
310 vector = ((mc_addr[4] >> 2) | (((u16)mc_addr[5]) << 6));
312 case 3: /* use bits [43:32] of the address */
313 vector = ((mc_addr[4]) | (((u16)mc_addr[5]) << 8));
315 default: /* Invalid mc_filter_type */
316 DEBUGOUT("MC filter type param set incorrectly\n");
321 /* vector can only be 12-bits or boundary will be exceeded */
326 STATIC s32 ixgbevf_write_msg_read_ack(struct ixgbe_hw *hw, u32 *msg,
327 u32 *retmsg, u16 size)
329 struct ixgbe_mbx_info *mbx = &hw->mbx;
330 s32 retval = mbx->ops.write_posted(hw, msg, size, 0);
335 return mbx->ops.read_posted(hw, retmsg, size, 0);
339 * ixgbe_set_rar_vf - set device MAC address
340 * @hw: pointer to hardware structure
341 * @index: Receive address register to write
342 * @addr: Address to put into receive address register
343 * @vmdq: VMDq "set" or "pool" index
344 * @enable_addr: set flag that address is active
346 s32 ixgbe_set_rar_vf(struct ixgbe_hw *hw, u32 index, u8 *addr, u32 vmdq,
349 struct ixgbe_mbx_info *mbx = &hw->mbx;
351 u8 *msg_addr = (u8 *)(&msgbuf[1]);
353 UNREFERENCED_3PARAMETER(vmdq, enable_addr, index);
355 memset(msgbuf, 0, 12);
356 msgbuf[0] = IXGBE_VF_SET_MAC_ADDR;
357 memcpy(msg_addr, addr, 6);
358 ret_val = mbx->ops.write_posted(hw, msgbuf, 3, 0);
361 ret_val = mbx->ops.read_posted(hw, msgbuf, 3, 0);
363 msgbuf[0] &= ~IXGBE_VT_MSGTYPE_CTS;
365 /* if nacked the address was rejected, use "perm_addr" */
367 (msgbuf[0] == (IXGBE_VF_SET_MAC_ADDR | IXGBE_VT_MSGTYPE_NACK))) {
368 ixgbe_get_mac_addr_vf(hw, hw->mac.addr);
369 return IXGBE_ERR_MBX;
376 * ixgbe_update_mc_addr_list_vf - Update Multicast addresses
377 * @hw: pointer to the HW structure
378 * @mc_addr_list: array of multicast addresses to program
379 * @mc_addr_count: number of multicast addresses to program
380 * @next: caller supplied function to return next address in list
382 * Updates the Multicast Table Array.
384 s32 ixgbe_update_mc_addr_list_vf(struct ixgbe_hw *hw, u8 *mc_addr_list,
385 u32 mc_addr_count, ixgbe_mc_addr_itr next,
388 struct ixgbe_mbx_info *mbx = &hw->mbx;
389 u32 msgbuf[IXGBE_VFMAILBOX_SIZE];
390 u16 *vector_list = (u16 *)&msgbuf[1];
395 UNREFERENCED_1PARAMETER(clear);
397 DEBUGFUNC("ixgbe_update_mc_addr_list_vf");
399 /* Each entry in the list uses 1 16 bit word. We have 30
400 * 16 bit words available in our HW msg buffer (minus 1 for the
401 * msg type). That's 30 hash values if we pack 'em right. If
402 * there are more than 30 MC addresses to add then punt the
403 * extras for now and then add code to handle more than 30 later.
404 * It would be unusual for a server to request that many multi-cast
405 * addresses except for in large enterprise network environments.
408 DEBUGOUT1("MC Addr Count = %d\n", mc_addr_count);
410 cnt = (mc_addr_count > 30) ? 30 : mc_addr_count;
411 msgbuf[0] = IXGBE_VF_SET_MULTICAST;
412 msgbuf[0] |= cnt << IXGBE_VT_MSGINFO_SHIFT;
414 for (i = 0; i < cnt; i++) {
415 vector = ixgbe_mta_vector(hw, next(hw, &mc_addr_list, &vmdq));
416 DEBUGOUT1("Hash value = 0x%03X\n", vector);
417 vector_list[i] = (u16)vector;
420 return mbx->ops.write_posted(hw, msgbuf, IXGBE_VFMAILBOX_SIZE, 0);
424 * ixgbevf_update_xcast_mode - Update Multicast mode
425 * @hw: pointer to the HW structure
426 * @xcast_mode: new multicast mode
428 * Updates the Multicast Mode of VF.
430 s32 ixgbevf_update_xcast_mode(struct ixgbe_hw *hw, int xcast_mode)
432 struct ixgbe_mbx_info *mbx = &hw->mbx;
436 switch (hw->api_version) {
437 case ixgbe_mbox_api_12:
438 case ixgbe_mbox_api_13:
441 return IXGBE_ERR_FEATURE_NOT_SUPPORTED;
444 msgbuf[0] = IXGBE_VF_UPDATE_XCAST_MODE;
445 msgbuf[1] = xcast_mode;
447 err = mbx->ops.write_posted(hw, msgbuf, 2, 0);
451 err = mbx->ops.read_posted(hw, msgbuf, 2, 0);
455 msgbuf[0] &= ~IXGBE_VT_MSGTYPE_CTS;
456 if (msgbuf[0] == (IXGBE_VF_UPDATE_XCAST_MODE | IXGBE_VT_MSGTYPE_NACK))
457 return IXGBE_ERR_FEATURE_NOT_SUPPORTED;
458 return IXGBE_SUCCESS;
462 * ixgbe_set_vfta_vf - Set/Unset vlan filter table address
463 * @hw: pointer to the HW structure
464 * @vlan: 12 bit VLAN ID
465 * @vind: unused by VF drivers
466 * @vlan_on: if true then set bit, else clear bit
467 * @vlvf_bypass: boolean flag indicating updating default pool is okay
469 s32 ixgbe_set_vfta_vf(struct ixgbe_hw *hw, u32 vlan, u32 vind,
470 bool vlan_on, bool vlvf_bypass)
472 struct ixgbe_mbx_info *mbx = &hw->mbx;
475 UNREFERENCED_2PARAMETER(vind, vlvf_bypass);
477 msgbuf[0] = IXGBE_VF_SET_VLAN;
479 /* Setting the 8 bit field MSG INFO to TRUE indicates "add" */
480 msgbuf[0] |= vlan_on << IXGBE_VT_MSGINFO_SHIFT;
482 ret_val = mbx->ops.write_posted(hw, msgbuf, 2, 0);
484 ret_val = mbx->ops.read_posted(hw, msgbuf, 1, 0);
486 if (!ret_val && (msgbuf[0] & IXGBE_VT_MSGTYPE_ACK))
487 return IXGBE_SUCCESS;
489 return ret_val | (msgbuf[0] & IXGBE_VT_MSGTYPE_NACK);
493 * ixgbe_get_num_of_tx_queues_vf - Get number of TX queues
494 * @hw: pointer to hardware structure
496 * Returns the number of transmit queues for the given adapter.
498 u32 ixgbe_get_num_of_tx_queues_vf(struct ixgbe_hw *hw)
500 UNREFERENCED_1PARAMETER(hw);
501 return IXGBE_VF_MAX_TX_QUEUES;
505 * ixgbe_get_num_of_rx_queues_vf - Get number of RX queues
506 * @hw: pointer to hardware structure
508 * Returns the number of receive queues for the given adapter.
510 u32 ixgbe_get_num_of_rx_queues_vf(struct ixgbe_hw *hw)
512 UNREFERENCED_1PARAMETER(hw);
513 return IXGBE_VF_MAX_RX_QUEUES;
517 * ixgbe_get_mac_addr_vf - Read device MAC address
518 * @hw: pointer to the HW structure
520 s32 ixgbe_get_mac_addr_vf(struct ixgbe_hw *hw, u8 *mac_addr)
524 for (i = 0; i < IXGBE_ETH_LENGTH_OF_ADDRESS; i++)
525 mac_addr[i] = hw->mac.perm_addr[i];
527 return IXGBE_SUCCESS;
530 s32 ixgbevf_set_uc_addr_vf(struct ixgbe_hw *hw, u32 index, u8 *addr)
532 struct ixgbe_mbx_info *mbx = &hw->mbx;
533 u32 msgbuf[3], msgbuf_chk;
534 u8 *msg_addr = (u8 *)(&msgbuf[1]);
537 memset(msgbuf, 0, sizeof(msgbuf));
539 * If index is one then this is the start of a new list and needs
540 * indication to the PF so it can do it's own list management.
541 * If it is zero then that tells the PF to just clear all of
542 * this VF's macvlans and there is no new list.
544 msgbuf[0] |= index << IXGBE_VT_MSGINFO_SHIFT;
545 msgbuf[0] |= IXGBE_VF_SET_MACVLAN;
546 msgbuf_chk = msgbuf[0];
548 memcpy(msg_addr, addr, 6);
549 ret_val = mbx->ops.write_posted(hw, msgbuf, 3, 0);
552 ret_val = mbx->ops.read_posted(hw, msgbuf, 3, 0);
554 msgbuf[0] &= ~IXGBE_VT_MSGTYPE_CTS;
556 if (msgbuf[0] == (msgbuf_chk | IXGBE_VT_MSGTYPE_NACK))
557 return IXGBE_ERR_OUT_OF_MEM;
564 * ixgbe_setup_mac_link_vf - Setup MAC link settings
565 * @hw: pointer to hardware structure
566 * @speed: new link speed
567 * @autoneg: true if autonegotiation enabled
568 * @autoneg_wait_to_complete: true when waiting for completion is needed
570 * Set the link speed in the AUTOC register and restarts link.
572 s32 ixgbe_setup_mac_link_vf(struct ixgbe_hw *hw, ixgbe_link_speed speed,
573 bool autoneg_wait_to_complete)
575 UNREFERENCED_3PARAMETER(hw, speed, autoneg_wait_to_complete);
576 return IXGBE_SUCCESS;
580 * ixgbe_check_mac_link_vf - Get link/speed status
581 * @hw: pointer to hardware structure
582 * @speed: pointer to link speed
583 * @link_up: true is link is up, false otherwise
584 * @autoneg_wait_to_complete: true when waiting for completion is needed
586 * Reads the links register to determine if link is up and the current speed
588 s32 ixgbe_check_mac_link_vf(struct ixgbe_hw *hw, ixgbe_link_speed *speed,
589 bool *link_up, bool autoneg_wait_to_complete)
591 struct ixgbe_mbx_info *mbx = &hw->mbx;
592 struct ixgbe_mac_info *mac = &hw->mac;
593 s32 ret_val = IXGBE_SUCCESS;
596 UNREFERENCED_1PARAMETER(autoneg_wait_to_complete);
598 /* If we were hit with a reset drop the link */
599 if (!mbx->ops.check_for_rst(hw, 0) || !mbx->timeout)
600 mac->get_link_status = true;
602 if (!mac->get_link_status)
605 /* if link status is down no point in checking to see if pf is up */
606 links_reg = IXGBE_READ_REG(hw, IXGBE_VFLINKS);
607 if (!(links_reg & IXGBE_LINKS_UP))
610 /* for SFP+ modules and DA cables on 82599 it can take up to 500usecs
611 * before the link status is correct
613 if (mac->type == ixgbe_mac_82599_vf) {
616 for (i = 0; i < 5; i++) {
618 links_reg = IXGBE_READ_REG(hw, IXGBE_VFLINKS);
620 if (!(links_reg & IXGBE_LINKS_UP))
625 switch (links_reg & IXGBE_LINKS_SPEED_82599) {
626 case IXGBE_LINKS_SPEED_10G_82599:
627 *speed = IXGBE_LINK_SPEED_10GB_FULL;
629 case IXGBE_LINKS_SPEED_1G_82599:
630 *speed = IXGBE_LINK_SPEED_1GB_FULL;
632 case IXGBE_LINKS_SPEED_100_82599:
633 *speed = IXGBE_LINK_SPEED_100_FULL;
637 /* if the read failed it could just be a mailbox collision, best wait
638 * until we are called again and don't report an error
640 if (mbx->ops.read(hw, &in_msg, 1, 0))
643 if (!(in_msg & IXGBE_VT_MSGTYPE_CTS)) {
644 /* msg is not CTS and is NACK we must have lost CTS status */
645 if (in_msg & IXGBE_VT_MSGTYPE_NACK)
650 /* the pf is talking, if we timed out in the past we reinit */
656 /* if we passed all the tests above then the link is up and we no
657 * longer need to check for link
659 mac->get_link_status = false;
662 *link_up = !mac->get_link_status;
667 * ixgbevf_rlpml_set_vf - Set the maximum receive packet length
668 * @hw: pointer to the HW structure
669 * @max_size: value to assign to max frame size
671 s32 ixgbevf_rlpml_set_vf(struct ixgbe_hw *hw, u16 max_size)
676 msgbuf[0] = IXGBE_VF_SET_LPE;
677 msgbuf[1] = max_size;
679 retval = ixgbevf_write_msg_read_ack(hw, msgbuf, msgbuf, 2);
682 if ((msgbuf[0] & IXGBE_VF_SET_LPE) &&
683 (msgbuf[0] & IXGBE_VT_MSGTYPE_NACK))
684 return IXGBE_ERR_MBX;
690 * ixgbevf_negotiate_api_version - Negotiate supported API version
691 * @hw: pointer to the HW structure
692 * @api: integer containing requested API version
694 int ixgbevf_negotiate_api_version(struct ixgbe_hw *hw, int api)
699 /* Negotiate the mailbox API version */
700 msg[0] = IXGBE_VF_API_NEGOTIATE;
703 err = hw->mbx.ops.write_posted(hw, msg, 3, 0);
706 err = hw->mbx.ops.read_posted(hw, msg, 3, 0);
709 msg[0] &= ~IXGBE_VT_MSGTYPE_CTS;
711 /* Store value and return 0 on success */
712 if (msg[0] == (IXGBE_VF_API_NEGOTIATE | IXGBE_VT_MSGTYPE_ACK)) {
713 hw->api_version = api;
717 err = IXGBE_ERR_INVALID_ARGUMENT;
723 int ixgbevf_get_queues(struct ixgbe_hw *hw, unsigned int *num_tcs,
724 unsigned int *default_tc)
729 /* do nothing if API doesn't support ixgbevf_get_queues */
730 switch (hw->api_version) {
731 case ixgbe_mbox_api_11:
732 case ixgbe_mbox_api_12:
733 case ixgbe_mbox_api_13:
739 /* Fetch queue configuration from the PF */
740 msg[0] = IXGBE_VF_GET_QUEUES;
741 msg[1] = msg[2] = msg[3] = msg[4] = 0;
742 err = hw->mbx.ops.write_posted(hw, msg, 5, 0);
745 err = hw->mbx.ops.read_posted(hw, msg, 5, 0);
748 msg[0] &= ~IXGBE_VT_MSGTYPE_CTS;
751 * if we we didn't get an ACK there must have been
752 * some sort of mailbox error so we should treat it
755 if (msg[0] != (IXGBE_VF_GET_QUEUES | IXGBE_VT_MSGTYPE_ACK))
756 return IXGBE_ERR_MBX;
758 /* record and validate values from message */
759 hw->mac.max_tx_queues = msg[IXGBE_VF_TX_QUEUES];
760 if (hw->mac.max_tx_queues == 0 ||
761 hw->mac.max_tx_queues > IXGBE_VF_MAX_TX_QUEUES)
762 hw->mac.max_tx_queues = IXGBE_VF_MAX_TX_QUEUES;
764 hw->mac.max_rx_queues = msg[IXGBE_VF_RX_QUEUES];
765 if (hw->mac.max_rx_queues == 0 ||
766 hw->mac.max_rx_queues > IXGBE_VF_MAX_RX_QUEUES)
767 hw->mac.max_rx_queues = IXGBE_VF_MAX_RX_QUEUES;
769 *num_tcs = msg[IXGBE_VF_TRANS_VLAN];
770 /* in case of unknown state assume we cannot tag frames */
771 if (*num_tcs > hw->mac.max_rx_queues)
774 *default_tc = msg[IXGBE_VF_DEF_QUEUE];
775 /* default to queue 0 on out-of-bounds queue number */
776 if (*default_tc >= hw->mac.max_tx_queues)