1 /******************************************************************************
3 Copyright (c) 2001-2017, Intel Corporation
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7 modification, are permitted provided that the following conditions are met:
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32 ******************************************************************************/
38 #ifndef IXGBE_VFWRITE_REG
39 #define IXGBE_VFWRITE_REG IXGBE_WRITE_REG
41 #ifndef IXGBE_VFREAD_REG
42 #define IXGBE_VFREAD_REG IXGBE_READ_REG
46 * ixgbe_init_ops_vf - Initialize the pointers for vf
47 * @hw: pointer to hardware structure
49 * This will assign function pointers, adapter-specific functions can
50 * override the assignment of generic function pointers by assigning
51 * their own adapter-specific function pointers.
52 * Does not touch the hardware.
54 s32 ixgbe_init_ops_vf(struct ixgbe_hw *hw)
57 hw->mac.ops.init_hw = ixgbe_init_hw_vf;
58 hw->mac.ops.reset_hw = ixgbe_reset_hw_vf;
59 hw->mac.ops.start_hw = ixgbe_start_hw_vf;
60 /* Cannot clear stats on VF */
61 hw->mac.ops.clear_hw_cntrs = NULL;
62 hw->mac.ops.get_media_type = NULL;
63 hw->mac.ops.get_mac_addr = ixgbe_get_mac_addr_vf;
64 hw->mac.ops.stop_adapter = ixgbe_stop_adapter_vf;
65 hw->mac.ops.get_bus_info = NULL;
66 hw->mac.ops.negotiate_api_version = ixgbevf_negotiate_api_version;
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;
83 hw->mac.ops.set_rlpml = ixgbevf_rlpml_set_vf;
85 hw->mac.max_tx_queues = 1;
86 hw->mac.max_rx_queues = 1;
88 hw->mbx.ops.init_params = ixgbe_init_mbx_params_vf;
93 /* ixgbe_virt_clr_reg - Set register to default (power on) state.
94 * @hw: pointer to hardware structure
96 static void ixgbe_virt_clr_reg(struct ixgbe_hw *hw)
103 /* VRSRRCTL default values (BSIZEPACKET = 2048, BSIZEHEADER = 256) */
104 vfsrrctl = 0x100 << IXGBE_SRRCTL_BSIZEHDRSIZE_SHIFT;
105 vfsrrctl |= 0x800 >> IXGBE_SRRCTL_BSIZEPKT_SHIFT;
107 /* DCA_RXCTRL default value */
108 vfdca_rxctrl = IXGBE_DCA_RXCTRL_DESC_RRO_EN |
109 IXGBE_DCA_RXCTRL_DATA_WRO_EN |
110 IXGBE_DCA_RXCTRL_HEAD_WRO_EN;
112 /* DCA_TXCTRL default value */
113 vfdca_txctrl = IXGBE_DCA_TXCTRL_DESC_RRO_EN |
114 IXGBE_DCA_TXCTRL_DESC_WRO_EN |
115 IXGBE_DCA_TXCTRL_DATA_RRO_EN;
117 IXGBE_WRITE_REG(hw, IXGBE_VFPSRTYPE, 0);
119 for (i = 0; i < 7; i++) {
120 IXGBE_WRITE_REG(hw, IXGBE_VFRDH(i), 0);
121 IXGBE_WRITE_REG(hw, IXGBE_VFRDT(i), 0);
122 IXGBE_WRITE_REG(hw, IXGBE_VFRXDCTL(i), 0);
123 IXGBE_WRITE_REG(hw, IXGBE_VFSRRCTL(i), vfsrrctl);
124 IXGBE_WRITE_REG(hw, IXGBE_VFTDH(i), 0);
125 IXGBE_WRITE_REG(hw, IXGBE_VFTDT(i), 0);
126 IXGBE_WRITE_REG(hw, IXGBE_VFTXDCTL(i), 0);
127 IXGBE_WRITE_REG(hw, IXGBE_VFTDWBAH(i), 0);
128 IXGBE_WRITE_REG(hw, IXGBE_VFTDWBAL(i), 0);
129 IXGBE_WRITE_REG(hw, IXGBE_VFDCA_RXCTRL(i), vfdca_rxctrl);
130 IXGBE_WRITE_REG(hw, IXGBE_VFDCA_TXCTRL(i), vfdca_txctrl);
133 IXGBE_WRITE_FLUSH(hw);
137 * ixgbe_start_hw_vf - Prepare hardware for Tx/Rx
138 * @hw: pointer to hardware structure
140 * Starts the hardware by filling the bus info structure and media type, clears
141 * all on chip counters, initializes receive address registers, multicast
142 * table, VLAN filter table, calls routine to set up link and flow control
143 * settings, and leaves transmit and receive units disabled and uninitialized
145 s32 ixgbe_start_hw_vf(struct ixgbe_hw *hw)
147 /* Clear adapter stopped flag */
148 hw->adapter_stopped = FALSE;
150 return IXGBE_SUCCESS;
154 * ixgbe_init_hw_vf - virtual function hardware initialization
155 * @hw: pointer to hardware structure
157 * Initialize the hardware by resetting the hardware and then starting
160 s32 ixgbe_init_hw_vf(struct ixgbe_hw *hw)
162 s32 status = hw->mac.ops.start_hw(hw);
164 hw->mac.ops.get_mac_addr(hw, hw->mac.addr);
170 * ixgbe_reset_hw_vf - Performs hardware reset
171 * @hw: pointer to hardware structure
173 * Resets the hardware by reseting the transmit and receive units, masks and
174 * clears all interrupts.
176 s32 ixgbe_reset_hw_vf(struct ixgbe_hw *hw)
178 struct ixgbe_mbx_info *mbx = &hw->mbx;
179 u32 timeout = IXGBE_VF_INIT_TIMEOUT;
180 s32 ret_val = IXGBE_ERR_INVALID_MAC_ADDR;
181 u32 msgbuf[IXGBE_VF_PERMADDR_MSG_LEN];
182 u8 *addr = (u8 *)(&msgbuf[1]);
184 DEBUGFUNC("ixgbevf_reset_hw_vf");
186 /* Call adapter stop to disable tx/rx and clear interrupts */
187 hw->mac.ops.stop_adapter(hw);
189 /* reset the api version */
190 hw->api_version = ixgbe_mbox_api_10;
192 DEBUGOUT("Issuing a function level reset to MAC\n");
194 IXGBE_VFWRITE_REG(hw, IXGBE_VFCTRL, IXGBE_CTRL_RST);
195 IXGBE_WRITE_FLUSH(hw);
199 /* we cannot reset while the RSTI / RSTD bits are asserted */
200 while (!mbx->ops.check_for_rst(hw, 0) && timeout) {
206 return IXGBE_ERR_RESET_FAILED;
208 /* Reset VF registers to initial values */
209 ixgbe_virt_clr_reg(hw);
211 /* mailbox timeout can now become active */
212 mbx->timeout = IXGBE_VF_MBX_INIT_TIMEOUT;
214 msgbuf[0] = IXGBE_VF_RESET;
215 mbx->ops.write_posted(hw, msgbuf, 1, 0);
220 * set our "perm_addr" based on info provided by PF
221 * also set up the mc_filter_type which is piggy backed
222 * on the mac address in word 3
224 ret_val = mbx->ops.read_posted(hw, msgbuf,
225 IXGBE_VF_PERMADDR_MSG_LEN, 0);
229 if (msgbuf[0] != (IXGBE_VF_RESET | IXGBE_VT_MSGTYPE_ACK) &&
230 msgbuf[0] != (IXGBE_VF_RESET | IXGBE_VT_MSGTYPE_NACK))
231 return IXGBE_ERR_INVALID_MAC_ADDR;
233 if (msgbuf[0] == (IXGBE_VF_RESET | IXGBE_VT_MSGTYPE_ACK))
234 memcpy(hw->mac.perm_addr, addr, IXGBE_ETH_LENGTH_OF_ADDRESS);
236 hw->mac.mc_filter_type = msgbuf[IXGBE_VF_MC_TYPE_WORD];
242 * ixgbe_stop_adapter_vf - Generic stop Tx/Rx units
243 * @hw: pointer to hardware structure
245 * Sets the adapter_stopped flag within ixgbe_hw struct. Clears interrupts,
246 * disables transmit and receive units. The adapter_stopped flag is used by
247 * the shared code and drivers to determine if the adapter is in a stopped
248 * state and should not touch the hardware.
250 s32 ixgbe_stop_adapter_vf(struct ixgbe_hw *hw)
256 * Set the adapter_stopped flag so other driver functions stop touching
259 hw->adapter_stopped = TRUE;
261 /* Clear interrupt mask to stop from interrupts being generated */
262 IXGBE_VFWRITE_REG(hw, IXGBE_VTEIMC, IXGBE_VF_IRQ_CLEAR_MASK);
264 /* Clear any pending interrupts, flush previous writes */
265 IXGBE_VFREAD_REG(hw, IXGBE_VTEICR);
267 /* Disable the transmit unit. Each queue must be disabled. */
268 for (i = 0; i < hw->mac.max_tx_queues; i++)
269 IXGBE_VFWRITE_REG(hw, IXGBE_VFTXDCTL(i), IXGBE_TXDCTL_SWFLSH);
271 /* Disable the receive unit by stopping each queue */
272 for (i = 0; i < hw->mac.max_rx_queues; i++) {
273 reg_val = IXGBE_VFREAD_REG(hw, IXGBE_VFRXDCTL(i));
274 reg_val &= ~IXGBE_RXDCTL_ENABLE;
275 IXGBE_VFWRITE_REG(hw, IXGBE_VFRXDCTL(i), reg_val);
277 /* Clear packet split and pool config */
278 IXGBE_WRITE_REG(hw, IXGBE_VFPSRTYPE, 0);
280 /* flush all queues disables */
281 IXGBE_WRITE_FLUSH(hw);
284 return IXGBE_SUCCESS;
288 * ixgbe_mta_vector - Determines bit-vector in multicast table to set
289 * @hw: pointer to hardware structure
290 * @mc_addr: the multicast address
292 * Extracts the 12 bits, from a multicast address, to determine which
293 * bit-vector to set in the multicast table. The hardware uses 12 bits, from
294 * incoming rx multicast addresses, to determine the bit-vector to check in
295 * the MTA. Which of the 4 combination, of 12-bits, the hardware uses is set
296 * by the MO field of the MCSTCTRL. The MO field is set during initialization
299 static s32 ixgbe_mta_vector(struct ixgbe_hw *hw, u8 *mc_addr)
303 switch (hw->mac.mc_filter_type) {
304 case 0: /* use bits [47:36] of the address */
305 vector = ((mc_addr[4] >> 4) | (((u16)mc_addr[5]) << 4));
307 case 1: /* use bits [46:35] of the address */
308 vector = ((mc_addr[4] >> 3) | (((u16)mc_addr[5]) << 5));
310 case 2: /* use bits [45:34] of the address */
311 vector = ((mc_addr[4] >> 2) | (((u16)mc_addr[5]) << 6));
313 case 3: /* use bits [43:32] of the address */
314 vector = ((mc_addr[4]) | (((u16)mc_addr[5]) << 8));
316 default: /* Invalid mc_filter_type */
317 DEBUGOUT("MC filter type param set incorrectly\n");
322 /* vector can only be 12-bits or boundary will be exceeded */
327 static s32 ixgbevf_write_msg_read_ack(struct ixgbe_hw *hw, u32 *msg,
328 u32 *retmsg, u16 size)
330 struct ixgbe_mbx_info *mbx = &hw->mbx;
331 s32 retval = mbx->ops.write_posted(hw, msg, size, 0);
336 return mbx->ops.read_posted(hw, retmsg, size, 0);
340 * ixgbe_set_rar_vf - set device MAC address
341 * @hw: pointer to hardware structure
342 * @index: Receive address register to write
343 * @addr: Address to put into receive address register
344 * @vmdq: VMDq "set" or "pool" index
345 * @enable_addr: set flag that address is active
347 s32 ixgbe_set_rar_vf(struct ixgbe_hw *hw, u32 index, u8 *addr, u32 vmdq,
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 = ixgbevf_write_msg_read_ack(hw, msgbuf, msgbuf, 3);
360 msgbuf[0] &= ~IXGBE_VT_MSGTYPE_CTS;
362 /* if nacked the address was rejected, use "perm_addr" */
364 (msgbuf[0] == (IXGBE_VF_SET_MAC_ADDR | IXGBE_VT_MSGTYPE_NACK))) {
365 ixgbe_get_mac_addr_vf(hw, hw->mac.addr);
366 return IXGBE_ERR_MBX;
373 * ixgbe_update_mc_addr_list_vf - Update Multicast addresses
374 * @hw: pointer to the HW structure
375 * @mc_addr_list: array of multicast addresses to program
376 * @mc_addr_count: number of multicast addresses to program
377 * @next: caller supplied function to return next address in list
379 * Updates the Multicast Table Array.
381 s32 ixgbe_update_mc_addr_list_vf(struct ixgbe_hw *hw, u8 *mc_addr_list,
382 u32 mc_addr_count, ixgbe_mc_addr_itr next,
385 struct ixgbe_mbx_info *mbx = &hw->mbx;
386 u32 msgbuf[IXGBE_VFMAILBOX_SIZE];
387 u16 *vector_list = (u16 *)&msgbuf[1];
392 UNREFERENCED_1PARAMETER(clear);
394 DEBUGFUNC("ixgbe_update_mc_addr_list_vf");
396 /* Each entry in the list uses 1 16 bit word. We have 30
397 * 16 bit words available in our HW msg buffer (minus 1 for the
398 * msg type). That's 30 hash values if we pack 'em right. If
399 * there are more than 30 MC addresses to add then punt the
400 * extras for now and then add code to handle more than 30 later.
401 * It would be unusual for a server to request that many multi-cast
402 * addresses except for in large enterprise network environments.
405 DEBUGOUT1("MC Addr Count = %d\n", mc_addr_count);
407 cnt = (mc_addr_count > 30) ? 30 : mc_addr_count;
408 msgbuf[0] = IXGBE_VF_SET_MULTICAST;
409 msgbuf[0] |= cnt << IXGBE_VT_MSGINFO_SHIFT;
411 for (i = 0; i < cnt; i++) {
412 vector = ixgbe_mta_vector(hw, next(hw, &mc_addr_list, &vmdq));
413 DEBUGOUT1("Hash value = 0x%03X\n", vector);
414 vector_list[i] = (u16)vector;
417 return mbx->ops.write_posted(hw, msgbuf, IXGBE_VFMAILBOX_SIZE, 0);
421 * ixgbevf_update_xcast_mode - Update Multicast mode
422 * @hw: pointer to the HW structure
423 * @xcast_mode: new multicast mode
425 * Updates the Multicast Mode of VF.
427 s32 ixgbevf_update_xcast_mode(struct ixgbe_hw *hw, int xcast_mode)
432 switch (hw->api_version) {
433 case ixgbe_mbox_api_12:
434 /* New modes were introduced in 1.3 version */
435 if (xcast_mode > IXGBEVF_XCAST_MODE_ALLMULTI)
436 return IXGBE_ERR_FEATURE_NOT_SUPPORTED;
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 = ixgbevf_write_msg_read_ack(hw, msgbuf, msgbuf, 2);
451 msgbuf[0] &= ~IXGBE_VT_MSGTYPE_CTS;
452 if (msgbuf[0] == (IXGBE_VF_UPDATE_XCAST_MODE | IXGBE_VT_MSGTYPE_NACK))
453 return IXGBE_ERR_FEATURE_NOT_SUPPORTED;
454 return IXGBE_SUCCESS;
458 * ixgbe_set_vfta_vf - Set/Unset vlan filter table address
459 * @hw: pointer to the HW structure
460 * @vlan: 12 bit VLAN ID
461 * @vind: unused by VF drivers
462 * @vlan_on: if TRUE then set bit, else clear bit
463 * @vlvf_bypass: boolean flag indicating updating default pool is okay
465 * Turn on/off specified VLAN in the VLAN filter table.
467 s32 ixgbe_set_vfta_vf(struct ixgbe_hw *hw, u32 vlan, u32 vind,
468 bool vlan_on, bool vlvf_bypass)
472 UNREFERENCED_2PARAMETER(vind, vlvf_bypass);
474 msgbuf[0] = IXGBE_VF_SET_VLAN;
476 /* Setting the 8 bit field MSG INFO to TRUE indicates "add" */
477 msgbuf[0] |= vlan_on << IXGBE_VT_MSGINFO_SHIFT;
479 ret_val = ixgbevf_write_msg_read_ack(hw, msgbuf, msgbuf, 2);
480 if (!ret_val && (msgbuf[0] & IXGBE_VT_MSGTYPE_ACK))
481 return IXGBE_SUCCESS;
483 return ret_val | (msgbuf[0] & IXGBE_VT_MSGTYPE_NACK);
487 * ixgbe_get_num_of_tx_queues_vf - Get number of TX queues
488 * @hw: pointer to hardware structure
490 * Returns the number of transmit queues for the given adapter.
492 u32 ixgbe_get_num_of_tx_queues_vf(struct ixgbe_hw *hw)
494 UNREFERENCED_1PARAMETER(hw);
495 return IXGBE_VF_MAX_TX_QUEUES;
499 * ixgbe_get_num_of_rx_queues_vf - Get number of RX queues
500 * @hw: pointer to hardware structure
502 * Returns the number of receive queues for the given adapter.
504 u32 ixgbe_get_num_of_rx_queues_vf(struct ixgbe_hw *hw)
506 UNREFERENCED_1PARAMETER(hw);
507 return IXGBE_VF_MAX_RX_QUEUES;
511 * ixgbe_get_mac_addr_vf - Read device MAC address
512 * @hw: pointer to the HW structure
514 s32 ixgbe_get_mac_addr_vf(struct ixgbe_hw *hw, u8 *mac_addr)
518 for (i = 0; i < IXGBE_ETH_LENGTH_OF_ADDRESS; i++)
519 mac_addr[i] = hw->mac.perm_addr[i];
521 return IXGBE_SUCCESS;
524 s32 ixgbevf_set_uc_addr_vf(struct ixgbe_hw *hw, u32 index, u8 *addr)
526 u32 msgbuf[3], msgbuf_chk;
527 u8 *msg_addr = (u8 *)(&msgbuf[1]);
530 memset(msgbuf, 0, sizeof(msgbuf));
532 * If index is one then this is the start of a new list and needs
533 * indication to the PF so it can do it's own list management.
534 * If it is zero then that tells the PF to just clear all of
535 * this VF's macvlans and there is no new list.
537 msgbuf[0] |= index << IXGBE_VT_MSGINFO_SHIFT;
538 msgbuf[0] |= IXGBE_VF_SET_MACVLAN;
539 msgbuf_chk = msgbuf[0];
541 memcpy(msg_addr, addr, 6);
543 ret_val = ixgbevf_write_msg_read_ack(hw, msgbuf, msgbuf, 3);
545 msgbuf[0] &= ~IXGBE_VT_MSGTYPE_CTS;
547 if (msgbuf[0] == (msgbuf_chk | IXGBE_VT_MSGTYPE_NACK))
548 return IXGBE_ERR_OUT_OF_MEM;
555 * ixgbe_setup_mac_link_vf - Setup MAC link settings
556 * @hw: pointer to hardware structure
557 * @speed: new link speed
558 * @autoneg: TRUE if autonegotiation enabled
559 * @autoneg_wait_to_complete: TRUE when waiting for completion is needed
561 * Set the link speed in the AUTOC register and restarts link.
563 s32 ixgbe_setup_mac_link_vf(struct ixgbe_hw *hw, ixgbe_link_speed speed,
564 bool autoneg_wait_to_complete)
566 UNREFERENCED_3PARAMETER(hw, speed, autoneg_wait_to_complete);
567 return IXGBE_SUCCESS;
571 * ixgbe_check_mac_link_vf - Get link/speed status
572 * @hw: pointer to hardware structure
573 * @speed: pointer to link speed
574 * @link_up: TRUE is link is up, FALSE otherwise
575 * @autoneg_wait_to_complete: TRUE when waiting for completion is needed
577 * Reads the links register to determine if link is up and the current speed
579 s32 ixgbe_check_mac_link_vf(struct ixgbe_hw *hw, ixgbe_link_speed *speed,
580 bool *link_up, bool autoneg_wait_to_complete)
582 struct ixgbe_mbx_info *mbx = &hw->mbx;
583 struct ixgbe_mac_info *mac = &hw->mac;
584 s32 ret_val = IXGBE_SUCCESS;
587 UNREFERENCED_1PARAMETER(autoneg_wait_to_complete);
589 /* If we were hit with a reset drop the link */
590 if (!mbx->ops.check_for_rst(hw, 0) || !mbx->timeout)
591 mac->get_link_status = TRUE;
593 if (!mac->get_link_status)
596 /* if link status is down no point in checking to see if pf is up */
597 links_reg = IXGBE_READ_REG(hw, IXGBE_VFLINKS);
598 if (!(links_reg & IXGBE_LINKS_UP))
601 /* for SFP+ modules and DA cables on 82599 it can take up to 500usecs
602 * before the link status is correct
604 if (mac->type == ixgbe_mac_82599_vf) {
607 for (i = 0; i < 5; i++) {
609 links_reg = IXGBE_READ_REG(hw, IXGBE_VFLINKS);
611 if (!(links_reg & IXGBE_LINKS_UP))
616 switch (links_reg & IXGBE_LINKS_SPEED_82599) {
617 case IXGBE_LINKS_SPEED_10G_82599:
618 *speed = IXGBE_LINK_SPEED_10GB_FULL;
619 if (hw->mac.type >= ixgbe_mac_X550) {
620 if (links_reg & IXGBE_LINKS_SPEED_NON_STD)
621 *speed = IXGBE_LINK_SPEED_2_5GB_FULL;
624 case IXGBE_LINKS_SPEED_1G_82599:
625 *speed = IXGBE_LINK_SPEED_1GB_FULL;
627 case IXGBE_LINKS_SPEED_100_82599:
628 *speed = IXGBE_LINK_SPEED_100_FULL;
629 if (hw->mac.type == ixgbe_mac_X550) {
630 if (links_reg & IXGBE_LINKS_SPEED_NON_STD)
631 *speed = IXGBE_LINK_SPEED_5GB_FULL;
634 case IXGBE_LINKS_SPEED_10_X550EM_A:
635 *speed = IXGBE_LINK_SPEED_UNKNOWN;
636 /* Since Reserved in older MAC's */
637 if (hw->mac.type >= ixgbe_mac_X550)
638 *speed = IXGBE_LINK_SPEED_10_FULL;
641 *speed = IXGBE_LINK_SPEED_UNKNOWN;
644 /* if the read failed it could just be a mailbox collision, best wait
645 * until we are called again and don't report an error
647 if (mbx->ops.read(hw, &in_msg, 1, 0))
650 if (!(in_msg & IXGBE_VT_MSGTYPE_CTS)) {
651 /* msg is not CTS and is NACK we must have lost CTS status */
652 if (in_msg & IXGBE_VT_MSGTYPE_NACK)
657 /* the pf is talking, if we timed out in the past we reinit */
663 /* if we passed all the tests above then the link is up and we no
664 * longer need to check for link
666 mac->get_link_status = FALSE;
669 *link_up = !mac->get_link_status;
674 * ixgbevf_rlpml_set_vf - Set the maximum receive packet length
675 * @hw: pointer to the HW structure
676 * @max_size: value to assign to max frame size
678 s32 ixgbevf_rlpml_set_vf(struct ixgbe_hw *hw, u16 max_size)
683 msgbuf[0] = IXGBE_VF_SET_LPE;
684 msgbuf[1] = max_size;
686 retval = ixgbevf_write_msg_read_ack(hw, msgbuf, msgbuf, 2);
689 if ((msgbuf[0] & IXGBE_VF_SET_LPE) &&
690 (msgbuf[0] & IXGBE_VT_MSGTYPE_NACK))
691 return IXGBE_ERR_MBX;
697 * ixgbevf_negotiate_api_version - Negotiate supported API version
698 * @hw: pointer to the HW structure
699 * @api: integer containing requested API version
701 int ixgbevf_negotiate_api_version(struct ixgbe_hw *hw, int api)
706 /* Negotiate the mailbox API version */
707 msg[0] = IXGBE_VF_API_NEGOTIATE;
711 err = ixgbevf_write_msg_read_ack(hw, msg, msg, 3);
713 msg[0] &= ~IXGBE_VT_MSGTYPE_CTS;
715 /* Store value and return 0 on success */
716 if (msg[0] == (IXGBE_VF_API_NEGOTIATE | IXGBE_VT_MSGTYPE_ACK)) {
717 hw->api_version = api;
721 err = IXGBE_ERR_INVALID_ARGUMENT;
727 int ixgbevf_get_queues(struct ixgbe_hw *hw, unsigned int *num_tcs,
728 unsigned int *default_tc)
733 /* do nothing if API doesn't support ixgbevf_get_queues */
734 switch (hw->api_version) {
735 case ixgbe_mbox_api_11:
736 case ixgbe_mbox_api_12:
737 case ixgbe_mbox_api_13:
743 /* Fetch queue configuration from the PF */
744 msg[0] = IXGBE_VF_GET_QUEUES;
745 msg[1] = msg[2] = msg[3] = msg[4] = 0;
747 err = ixgbevf_write_msg_read_ack(hw, msg, msg, 5);
749 msg[0] &= ~IXGBE_VT_MSGTYPE_CTS;
752 * if we we didn't get an ACK there must have been
753 * some sort of mailbox error so we should treat it
756 if (msg[0] != (IXGBE_VF_GET_QUEUES | IXGBE_VT_MSGTYPE_ACK))
757 return IXGBE_ERR_MBX;
759 /* record and validate values from message */
760 hw->mac.max_tx_queues = msg[IXGBE_VF_TX_QUEUES];
761 if (hw->mac.max_tx_queues == 0 ||
762 hw->mac.max_tx_queues > IXGBE_VF_MAX_TX_QUEUES)
763 hw->mac.max_tx_queues = IXGBE_VF_MAX_TX_QUEUES;
765 hw->mac.max_rx_queues = msg[IXGBE_VF_RX_QUEUES];
766 if (hw->mac.max_rx_queues == 0 ||
767 hw->mac.max_rx_queues > IXGBE_VF_MAX_RX_QUEUES)
768 hw->mac.max_rx_queues = IXGBE_VF_MAX_RX_QUEUES;
770 *num_tcs = msg[IXGBE_VF_TRANS_VLAN];
771 /* in case of unknown state assume we cannot tag frames */
772 if (*num_tcs > hw->mac.max_rx_queues)
775 *default_tc = msg[IXGBE_VF_DEF_QUEUE];
776 /* default to queue 0 on out-of-bounds queue number */
777 if (*default_tc >= hw->mac.max_tx_queues)