2   SPDX-License-Identifier: BSD-3-Clause
4   Copyright (c) 2001-2020, Intel Corporation
38 static s32 ixgbe_poll_for_msg(struct ixgbe_hw *hw, u16 mbx_id);
39 static s32 ixgbe_poll_for_ack(struct ixgbe_hw *hw, u16 mbx_id);
42  * ixgbe_read_mbx - Reads a message from the mailbox
43  * @hw: pointer to the HW structure
50 s32 ixgbe_read_mbx(struct ixgbe_hw *hw, u32 *msg, u16 size, u16 mbx_id)  in ixgbe_read_mbx()  argument
52 	struct ixgbe_mbx_info *mbx = &hw->mbx;  in ixgbe_read_mbx()
57 	if (size > mbx->size) {  in ixgbe_read_mbx()
60 			      size, mbx->size);  in ixgbe_read_mbx()
61 		size = mbx->size;  in ixgbe_read_mbx()
64 	if (mbx->ops[mbx_id].read)  in ixgbe_read_mbx()
65 		return mbx->ops[mbx_id].read(hw, msg, size, mbx_id);  in ixgbe_read_mbx()
71  * ixgbe_poll_mbx - Wait for message and read it from the mailbox
72  * @hw: pointer to the HW structure
79 s32 ixgbe_poll_mbx(struct ixgbe_hw *hw, u32 *msg, u16 size, u16 mbx_id)  in ixgbe_poll_mbx()  argument
81 	struct ixgbe_mbx_info *mbx = &hw->mbx;  in ixgbe_poll_mbx()
86 	if (!mbx->ops[mbx_id].read || !mbx->ops[mbx_id].check_for_msg ||  in ixgbe_poll_mbx()
87 	    !mbx->timeout)  in ixgbe_poll_mbx()
91 	if (size > mbx->size) {  in ixgbe_poll_mbx()
94 			      size, mbx->size);  in ixgbe_poll_mbx()
95 		size = mbx->size;  in ixgbe_poll_mbx()
98 	ret_val = ixgbe_poll_for_msg(hw, mbx_id);  in ixgbe_poll_mbx()
101 		return mbx->ops[mbx_id].read(hw, msg, size, mbx_id);  in ixgbe_poll_mbx()
107  * ixgbe_write_mbx - Write a message to the mailbox and wait for ACK
108  * @hw: pointer to the HW structure
119 s32 ixgbe_write_mbx(struct ixgbe_hw *hw, u32 *msg, u16 size, u16 mbx_id)  in ixgbe_write_mbx()  argument
121 	struct ixgbe_mbx_info *mbx = &hw->mbx;  in ixgbe_write_mbx()
130 	if (!mbx->ops[mbx_id].write || !mbx->ops[mbx_id].check_for_ack ||  in ixgbe_write_mbx()
131 	    !mbx->ops[mbx_id].release || !mbx->timeout)  in ixgbe_write_mbx()
134 	if (size > mbx->size) {  in ixgbe_write_mbx()
139 		ret_val = mbx->ops[mbx_id].write(hw, msg, size, mbx_id);  in ixgbe_write_mbx()
146  * ixgbe_check_for_msg - checks to see if someone sent us mail
147  * @hw: pointer to the HW structure
152 s32 ixgbe_check_for_msg(struct ixgbe_hw *hw, u16 mbx_id)  in ixgbe_check_for_msg()  argument
154 	struct ixgbe_mbx_info *mbx = &hw->mbx;  in ixgbe_check_for_msg()
159 	if (mbx->ops[mbx_id].check_for_msg)  in ixgbe_check_for_msg()
160 		ret_val = mbx->ops[mbx_id].check_for_msg(hw, mbx_id);  in ixgbe_check_for_msg()
166  * ixgbe_check_for_ack - checks to see if someone sent us ACK
167  * @hw: pointer to the HW structure
172 s32 ixgbe_check_for_ack(struct ixgbe_hw *hw, u16 mbx_id)  in ixgbe_check_for_ack()  argument
174 	struct ixgbe_mbx_info *mbx = &hw->mbx;  in ixgbe_check_for_ack()
179 	if (mbx->ops[mbx_id].check_for_ack)  in ixgbe_check_for_ack()
180 		ret_val = mbx->ops[mbx_id].check_for_ack(hw, mbx_id);  in ixgbe_check_for_ack()
186  * ixgbe_check_for_rst - checks to see if other side has reset
187  * @hw: pointer to the HW structure
192 s32 ixgbe_check_for_rst(struct ixgbe_hw *hw, u16 mbx_id)  in ixgbe_check_for_rst()  argument
194 	struct ixgbe_mbx_info *mbx = &hw->mbx;  in ixgbe_check_for_rst()
199 	if (mbx->ops[mbx_id].check_for_rst)  in ixgbe_check_for_rst()
200 		ret_val = mbx->ops[mbx_id].check_for_rst(hw, mbx_id);  in ixgbe_check_for_rst()
206  * ixgbe_clear_mbx - Clear Mailbox Memory
207  * @hw: pointer to the HW structure
212 s32 ixgbe_clear_mbx(struct ixgbe_hw *hw, u16 mbx_id)  in ixgbe_clear_mbx()  argument
214 	struct ixgbe_mbx_info *mbx = &hw->mbx;  in ixgbe_clear_mbx()
219 	if (mbx->ops[mbx_id].clear)  in ixgbe_clear_mbx()
220 		ret_val = mbx->ops[mbx_id].clear(hw, mbx_id);  in ixgbe_clear_mbx()
226  * ixgbe_poll_for_msg - Wait for message notification
227  * @hw: pointer to the HW structure
232 static s32 ixgbe_poll_for_msg(struct ixgbe_hw *hw, u16 mbx_id)  in ixgbe_poll_for_msg()  argument
234 	struct ixgbe_mbx_info *mbx = &hw->mbx;  in ixgbe_poll_for_msg()
235 	int countdown = mbx->timeout;  in ixgbe_poll_for_msg()
239 	if (!countdown || !mbx->ops[mbx_id].check_for_msg)  in ixgbe_poll_for_msg()
242 	while (countdown && mbx->ops[mbx_id].check_for_msg(hw, mbx_id)) {  in ixgbe_poll_for_msg()
243 		countdown--;  in ixgbe_poll_for_msg()
246 		usec_delay(mbx->usec_delay);  in ixgbe_poll_for_msg()
259  * ixgbe_poll_for_ack - Wait for message acknowledgment
260  * @hw: pointer to the HW structure
265 static s32 ixgbe_poll_for_ack(struct ixgbe_hw *hw, u16 mbx_id)  in ixgbe_poll_for_ack()  argument
267 	struct ixgbe_mbx_info *mbx = &hw->mbx;  in ixgbe_poll_for_ack()
268 	int countdown = mbx->timeout;  in ixgbe_poll_for_ack()
272 	if (!countdown || !mbx->ops[mbx_id].check_for_ack)  in ixgbe_poll_for_ack()
275 	while (countdown && mbx->ops[mbx_id].check_for_ack(hw, mbx_id)) {  in ixgbe_poll_for_ack()
276 		countdown--;  in ixgbe_poll_for_ack()
279 		usec_delay(mbx->usec_delay);  in ixgbe_poll_for_ack()
292  * ixgbe_read_mailbox_vf - read VF's mailbox register
293  * @hw: pointer to the HW structure
298 static u32 ixgbe_read_mailbox_vf(struct ixgbe_hw *hw)  in ixgbe_read_mailbox_vf()  argument
300 	u32 vf_mailbox = IXGBE_READ_REG(hw, IXGBE_VFMAILBOX);  in ixgbe_read_mailbox_vf()
302 	vf_mailbox |= hw->mbx.vf_mailbox;  in ixgbe_read_mailbox_vf()
303 	hw->mbx.vf_mailbox |= vf_mailbox & IXGBE_VFMAILBOX_R2C_BITS;  in ixgbe_read_mailbox_vf()
308 static void ixgbe_clear_msg_vf(struct ixgbe_hw *hw)  in ixgbe_clear_msg_vf()  argument
310 	u32 vf_mailbox = ixgbe_read_mailbox_vf(hw);  in ixgbe_clear_msg_vf()
313 		hw->mbx.stats.reqs++;  in ixgbe_clear_msg_vf()
314 		hw->mbx.vf_mailbox &= ~IXGBE_VFMAILBOX_PFSTS;  in ixgbe_clear_msg_vf()
318 static void ixgbe_clear_ack_vf(struct ixgbe_hw *hw)  in ixgbe_clear_ack_vf()  argument
320 	u32 vf_mailbox = ixgbe_read_mailbox_vf(hw);  in ixgbe_clear_ack_vf()
323 		hw->mbx.stats.acks++;  in ixgbe_clear_ack_vf()
324 		hw->mbx.vf_mailbox &= ~IXGBE_VFMAILBOX_PFACK;  in ixgbe_clear_ack_vf()
328 static void ixgbe_clear_rst_vf(struct ixgbe_hw *hw)  in ixgbe_clear_rst_vf()  argument
330 	u32 vf_mailbox = ixgbe_read_mailbox_vf(hw);  in ixgbe_clear_rst_vf()
333 		hw->mbx.stats.rsts++;  in ixgbe_clear_rst_vf()
334 		hw->mbx.vf_mailbox &= ~(IXGBE_VFMAILBOX_RSTI |  in ixgbe_clear_rst_vf()
340  * ixgbe_check_for_bit_vf - Determine if a status bit was set
341  * @hw: pointer to the HW structure
347 static s32 ixgbe_check_for_bit_vf(struct ixgbe_hw *hw, u32 mask)  in ixgbe_check_for_bit_vf()  argument
349 	u32 vf_mailbox = ixgbe_read_mailbox_vf(hw);  in ixgbe_check_for_bit_vf()
358  * ixgbe_check_for_msg_vf - checks to see if the PF has sent mail
359  * @hw: pointer to the HW structure
364 static s32 ixgbe_check_for_msg_vf(struct ixgbe_hw *hw, u16 mbx_id)  in ixgbe_check_for_msg_vf()  argument
369 	if (!ixgbe_check_for_bit_vf(hw, IXGBE_VFMAILBOX_PFSTS))  in ixgbe_check_for_msg_vf()
376  * ixgbe_check_for_ack_vf - checks to see if the PF has ACK'd
377  * @hw: pointer to the HW structure
382 static s32 ixgbe_check_for_ack_vf(struct ixgbe_hw *hw, u16 mbx_id)  in ixgbe_check_for_ack_vf()  argument
387 	if (!ixgbe_check_for_bit_vf(hw, IXGBE_VFMAILBOX_PFACK)) {  in ixgbe_check_for_ack_vf()
389 		ixgbe_clear_ack_vf(hw);  in ixgbe_check_for_ack_vf()
397  * ixgbe_check_for_rst_vf - checks to see if the PF has reset
398  * @hw: pointer to the HW structure
403 static s32 ixgbe_check_for_rst_vf(struct ixgbe_hw *hw, u16 mbx_id)  in ixgbe_check_for_rst_vf()  argument
408 	if (!ixgbe_check_for_bit_vf(hw, IXGBE_VFMAILBOX_RSTI |  in ixgbe_check_for_rst_vf()
411 		ixgbe_clear_rst_vf(hw);  in ixgbe_check_for_rst_vf()
419  * ixgbe_obtain_mbx_lock_vf - obtain mailbox lock
420  * @hw: pointer to the HW structure
424 static s32 ixgbe_obtain_mbx_lock_vf(struct ixgbe_hw *hw)  in ixgbe_obtain_mbx_lock_vf()  argument
426 	struct ixgbe_mbx_info *mbx = &hw->mbx;  in ixgbe_obtain_mbx_lock_vf()
427 	int countdown = mbx->timeout;  in ixgbe_obtain_mbx_lock_vf()
433 	if (!mbx->timeout)  in ixgbe_obtain_mbx_lock_vf()
436 	while (countdown--) {  in ixgbe_obtain_mbx_lock_vf()
438 		vf_mailbox = ixgbe_read_mailbox_vf(hw);  in ixgbe_obtain_mbx_lock_vf()
440 		IXGBE_WRITE_REG(hw, IXGBE_VFMAILBOX, vf_mailbox);  in ixgbe_obtain_mbx_lock_vf()
443 		if (ixgbe_read_mailbox_vf(hw) & IXGBE_VFMAILBOX_VFU) {  in ixgbe_obtain_mbx_lock_vf()
449 		usec_delay(mbx->usec_delay);  in ixgbe_obtain_mbx_lock_vf()
462  * ixgbe_release_mbx_lock_dummy - release mailbox lock
463  * @hw: pointer to the HW structure
466 static void ixgbe_release_mbx_lock_dummy(struct ixgbe_hw *hw, u16 mbx_id)  in ixgbe_release_mbx_lock_dummy()  argument
468 	UNREFERENCED_2PARAMETER(hw, mbx_id);  in ixgbe_release_mbx_lock_dummy()
474  * ixgbe_release_mbx_lock_vf - release mailbox lock
475  * @hw: pointer to the HW structure
478 static void ixgbe_release_mbx_lock_vf(struct ixgbe_hw *hw, u16 mbx_id)  in ixgbe_release_mbx_lock_vf()  argument
487 	vf_mailbox = ixgbe_read_mailbox_vf(hw);  in ixgbe_release_mbx_lock_vf()
489 	IXGBE_WRITE_REG(hw, IXGBE_VFMAILBOX, vf_mailbox);  in ixgbe_release_mbx_lock_vf()
493  * ixgbe_write_mbx_vf_legacy - Write a message to the mailbox
494  * @hw: pointer to the HW structure
501 static s32 ixgbe_write_mbx_vf_legacy(struct ixgbe_hw *hw, u32 *msg, u16 size,  in ixgbe_write_mbx_vf_legacy()  argument
511 	ret_val = ixgbe_obtain_mbx_lock_vf(hw);  in ixgbe_write_mbx_vf_legacy()
516 	ixgbe_check_for_msg_vf(hw, 0);  in ixgbe_write_mbx_vf_legacy()
517 	ixgbe_clear_msg_vf(hw);  in ixgbe_write_mbx_vf_legacy()
518 	ixgbe_check_for_ack_vf(hw, 0);  in ixgbe_write_mbx_vf_legacy()
519 	ixgbe_clear_ack_vf(hw);  in ixgbe_write_mbx_vf_legacy()
523 		IXGBE_WRITE_REG_ARRAY(hw, IXGBE_VFMBMEM, i, msg[i]);  in ixgbe_write_mbx_vf_legacy()
526 	hw->mbx.stats.msgs_tx++;  in ixgbe_write_mbx_vf_legacy()
529 	IXGBE_WRITE_REG(hw, IXGBE_VFMAILBOX, IXGBE_VFMAILBOX_REQ);  in ixgbe_write_mbx_vf_legacy()
535  * ixgbe_write_mbx_vf - Write a message to the mailbox
536  * @hw: pointer to the HW structure
543 static s32 ixgbe_write_mbx_vf(struct ixgbe_hw *hw, u32 *msg, u16 size,  in ixgbe_write_mbx_vf()  argument
555 	ret_val = ixgbe_obtain_mbx_lock_vf(hw);  in ixgbe_write_mbx_vf()
560 	ixgbe_clear_msg_vf(hw);  in ixgbe_write_mbx_vf()
561 	ixgbe_clear_ack_vf(hw);  in ixgbe_write_mbx_vf()
565 		IXGBE_WRITE_REG_ARRAY(hw, IXGBE_VFMBMEM, i, msg[i]);  in ixgbe_write_mbx_vf()
568 	hw->mbx.stats.msgs_tx++;  in ixgbe_write_mbx_vf()
571 	vf_mailbox = ixgbe_read_mailbox_vf(hw);  in ixgbe_write_mbx_vf()
573 	IXGBE_WRITE_REG(hw, IXGBE_VFMAILBOX, vf_mailbox);  in ixgbe_write_mbx_vf()
576 	ixgbe_poll_for_ack(hw, mbx_id);  in ixgbe_write_mbx_vf()
579 	hw->mbx.ops[mbx_id].release(hw, mbx_id);  in ixgbe_write_mbx_vf()
585  * ixgbe_read_mbx_vf_legacy - Reads a message from the inbox intended for vf
586  * @hw: pointer to the HW structure
593 static s32 ixgbe_read_mbx_vf_legacy(struct ixgbe_hw *hw, u32 *msg, u16 size,  in ixgbe_read_mbx_vf_legacy()  argument
603 	ret_val = ixgbe_obtain_mbx_lock_vf(hw);  in ixgbe_read_mbx_vf_legacy()
609 		msg[i] = IXGBE_READ_REG_ARRAY(hw, IXGBE_VFMBMEM, i);  in ixgbe_read_mbx_vf_legacy()
612 	IXGBE_WRITE_REG(hw, IXGBE_VFMAILBOX, IXGBE_VFMAILBOX_ACK);  in ixgbe_read_mbx_vf_legacy()
615 	hw->mbx.stats.msgs_rx++;  in ixgbe_read_mbx_vf_legacy()
621  * ixgbe_read_mbx_vf - Reads a message from the inbox intended for vf
622  * @hw: pointer to the HW structure
629 static s32 ixgbe_read_mbx_vf(struct ixgbe_hw *hw, u32 *msg, u16 size,  in ixgbe_read_mbx_vf()  argument
640 	ret_val = ixgbe_check_for_msg_vf(hw, 0);  in ixgbe_read_mbx_vf()
644 	ixgbe_clear_msg_vf(hw);  in ixgbe_read_mbx_vf()
648 		msg[i] = IXGBE_READ_REG_ARRAY(hw, IXGBE_VFMBMEM, i);  in ixgbe_read_mbx_vf()
651 	vf_mailbox = ixgbe_read_mailbox_vf(hw);  in ixgbe_read_mbx_vf()
653 	IXGBE_WRITE_REG(hw, IXGBE_VFMAILBOX, vf_mailbox);  in ixgbe_read_mbx_vf()
656 	hw->mbx.stats.msgs_rx++;  in ixgbe_read_mbx_vf()
662  * ixgbe_init_mbx_params_vf - set initial values for vf mailbox
663  * @hw: pointer to the HW structure
665  * Initializes single set the hw->mbx struct to correct values for vf mailbox
668 void ixgbe_init_mbx_params_vf(struct ixgbe_hw *hw)  in ixgbe_init_mbx_params_vf()  argument
670 	struct ixgbe_mbx_info *mbx = &hw->mbx;  in ixgbe_init_mbx_params_vf()
672 	mbx->timeout = IXGBE_VF_MBX_INIT_TIMEOUT;  in ixgbe_init_mbx_params_vf()
673 	mbx->usec_delay = IXGBE_VF_MBX_INIT_DELAY;  in ixgbe_init_mbx_params_vf()
675 	mbx->size = IXGBE_VFMAILBOX_SIZE;  in ixgbe_init_mbx_params_vf()
678 	mbx->ops[0].release = ixgbe_release_mbx_lock_dummy;  in ixgbe_init_mbx_params_vf()
679 	mbx->ops[0].read = ixgbe_read_mbx_vf_legacy;  in ixgbe_init_mbx_params_vf()
680 	mbx->ops[0].write = ixgbe_write_mbx_vf_legacy;  in ixgbe_init_mbx_params_vf()
681 	mbx->ops[0].check_for_msg = ixgbe_check_for_msg_vf;  in ixgbe_init_mbx_params_vf()
682 	mbx->ops[0].check_for_ack = ixgbe_check_for_ack_vf;  in ixgbe_init_mbx_params_vf()
683 	mbx->ops[0].check_for_rst = ixgbe_check_for_rst_vf;  in ixgbe_init_mbx_params_vf()
684 	mbx->ops[0].clear = NULL;  in ixgbe_init_mbx_params_vf()
686 	mbx->stats.msgs_tx = 0;  in ixgbe_init_mbx_params_vf()
687 	mbx->stats.msgs_rx = 0;  in ixgbe_init_mbx_params_vf()
688 	mbx->stats.reqs = 0;  in ixgbe_init_mbx_params_vf()
689 	mbx->stats.acks = 0;  in ixgbe_init_mbx_params_vf()
690 	mbx->stats.rsts = 0;  in ixgbe_init_mbx_params_vf()
694  * ixgbe_upgrade_mbx_params_vf - set initial values for vf mailbox
695  * @hw: pointer to the HW structure
697  * Initializes the hw->mbx struct to correct values for vf mailbox
699 void ixgbe_upgrade_mbx_params_vf(struct ixgbe_hw *hw)  in ixgbe_upgrade_mbx_params_vf()  argument
701 	struct ixgbe_mbx_info *mbx = &hw->mbx;  in ixgbe_upgrade_mbx_params_vf()
703 	mbx->timeout = IXGBE_VF_MBX_INIT_TIMEOUT;  in ixgbe_upgrade_mbx_params_vf()
704 	mbx->usec_delay = IXGBE_VF_MBX_INIT_DELAY;  in ixgbe_upgrade_mbx_params_vf()
706 	mbx->size = IXGBE_VFMAILBOX_SIZE;  in ixgbe_upgrade_mbx_params_vf()
709 	mbx->ops[0].release = ixgbe_release_mbx_lock_vf;  in ixgbe_upgrade_mbx_params_vf()
710 	mbx->ops[0].read = ixgbe_read_mbx_vf;  in ixgbe_upgrade_mbx_params_vf()
711 	mbx->ops[0].write = ixgbe_write_mbx_vf;  in ixgbe_upgrade_mbx_params_vf()
712 	mbx->ops[0].check_for_msg = ixgbe_check_for_msg_vf;  in ixgbe_upgrade_mbx_params_vf()
713 	mbx->ops[0].check_for_ack = ixgbe_check_for_ack_vf;  in ixgbe_upgrade_mbx_params_vf()
714 	mbx->ops[0].check_for_rst = ixgbe_check_for_rst_vf;  in ixgbe_upgrade_mbx_params_vf()
715 	mbx->ops[0].clear = NULL;  in ixgbe_upgrade_mbx_params_vf()
717 	mbx->stats.msgs_tx = 0;  in ixgbe_upgrade_mbx_params_vf()
718 	mbx->stats.msgs_rx = 0;  in ixgbe_upgrade_mbx_params_vf()
719 	mbx->stats.reqs = 0;  in ixgbe_upgrade_mbx_params_vf()
720 	mbx->stats.acks = 0;  in ixgbe_upgrade_mbx_params_vf()
721 	mbx->stats.rsts = 0;  in ixgbe_upgrade_mbx_params_vf()
724 static void ixgbe_clear_msg_pf(struct ixgbe_hw *hw, u16 vf_id)  in ixgbe_clear_msg_pf()  argument
730 	pfmbicr = IXGBE_READ_REG(hw, IXGBE_PFMBICR(index));  in ixgbe_clear_msg_pf()
733 		hw->mbx.stats.reqs++;  in ixgbe_clear_msg_pf()
735 	IXGBE_WRITE_REG(hw, IXGBE_PFMBICR(index),  in ixgbe_clear_msg_pf()
739 static void ixgbe_clear_ack_pf(struct ixgbe_hw *hw, u16 vf_id)  in ixgbe_clear_ack_pf()  argument
745 	pfmbicr = IXGBE_READ_REG(hw, IXGBE_PFMBICR(index));  in ixgbe_clear_ack_pf()
748 		hw->mbx.stats.acks++;  in ixgbe_clear_ack_pf()
750 	IXGBE_WRITE_REG(hw, IXGBE_PFMBICR(index),  in ixgbe_clear_ack_pf()
754 static s32 ixgbe_check_for_bit_pf(struct ixgbe_hw *hw, u32 mask, s32 index)  in ixgbe_check_for_bit_pf()  argument
756 	u32 pfmbicr = IXGBE_READ_REG(hw, IXGBE_PFMBICR(index));  in ixgbe_check_for_bit_pf()
766  * ixgbe_check_for_msg_pf - checks to see if the VF has sent mail
767  * @hw: pointer to the HW structure
772 static s32 ixgbe_check_for_msg_pf(struct ixgbe_hw *hw, u16 vf_id)  in ixgbe_check_for_msg_pf()  argument
779 	if (!ixgbe_check_for_bit_pf(hw, IXGBE_PFMBICR_VFREQ_VF1 << vf_shift,  in ixgbe_check_for_msg_pf()
787  * ixgbe_check_for_ack_pf - checks to see if the VF has ACKed
788  * @hw: pointer to the HW structure
793 static s32 ixgbe_check_for_ack_pf(struct ixgbe_hw *hw, u16 vf_id)  in ixgbe_check_for_ack_pf()  argument
801 	if (!ixgbe_check_for_bit_pf(hw, IXGBE_PFMBICR_VFACK_VF1 << vf_shift,  in ixgbe_check_for_ack_pf()
805 		ixgbe_clear_ack_pf(hw, vf_id);  in ixgbe_check_for_ack_pf()
812  * ixgbe_check_for_rst_pf - checks to see if the VF has reset
813  * @hw: pointer to the HW structure
818 static s32 ixgbe_check_for_rst_pf(struct ixgbe_hw *hw, u16 vf_id)  in ixgbe_check_for_rst_pf()  argument
827 	switch (hw->mac.type) {  in ixgbe_check_for_rst_pf()
829 		vflre = IXGBE_READ_REG(hw, IXGBE_PFVFLRE(index));  in ixgbe_check_for_rst_pf()
835 		vflre = IXGBE_READ_REG(hw, IXGBE_PFVFLREC(index));  in ixgbe_check_for_rst_pf()
843 		IXGBE_WRITE_REG(hw, IXGBE_PFVFLREC(index), (1 << vf_shift));  in ixgbe_check_for_rst_pf()
844 		hw->mbx.stats.rsts++;  in ixgbe_check_for_rst_pf()
851  * ixgbe_obtain_mbx_lock_pf - obtain mailbox lock
852  * @hw: pointer to the HW structure
857 static s32 ixgbe_obtain_mbx_lock_pf(struct ixgbe_hw *hw, u16 vf_id)  in ixgbe_obtain_mbx_lock_pf()  argument
859 	struct ixgbe_mbx_info *mbx = &hw->mbx;  in ixgbe_obtain_mbx_lock_pf()
860 	int countdown = mbx->timeout;  in ixgbe_obtain_mbx_lock_pf()
866 	if (!mbx->timeout)  in ixgbe_obtain_mbx_lock_pf()
869 	while (countdown--) {  in ixgbe_obtain_mbx_lock_pf()
871 		pf_mailbox = IXGBE_READ_REG(hw, IXGBE_PFMAILBOX(vf_id));  in ixgbe_obtain_mbx_lock_pf()
878 		IXGBE_WRITE_REG(hw, IXGBE_PFMAILBOX(vf_id), pf_mailbox);  in ixgbe_obtain_mbx_lock_pf()
881 		pf_mailbox = IXGBE_READ_REG(hw, IXGBE_PFMAILBOX(vf_id));  in ixgbe_obtain_mbx_lock_pf()
889 		usec_delay(mbx->usec_delay);  in ixgbe_obtain_mbx_lock_pf()
902  * ixgbe_release_mbx_lock_pf - release mailbox lock
903  * @hw: pointer to the HW structure
906 static void ixgbe_release_mbx_lock_pf(struct ixgbe_hw *hw, u16 vf_id)  in ixgbe_release_mbx_lock_pf()  argument
913 	pf_mailbox = IXGBE_READ_REG(hw, IXGBE_PFMAILBOX(vf_id));  in ixgbe_release_mbx_lock_pf()
915 	IXGBE_WRITE_REG(hw, IXGBE_PFMAILBOX(vf_id), pf_mailbox);  in ixgbe_release_mbx_lock_pf()
919  * ixgbe_write_mbx_pf_legacy - Places a message in the mailbox
920  * @hw: pointer to the HW structure
927 static s32 ixgbe_write_mbx_pf_legacy(struct ixgbe_hw *hw, u32 *msg, u16 size,  in ixgbe_write_mbx_pf_legacy()  argument
936 	ret_val = ixgbe_obtain_mbx_lock_pf(hw, vf_id);  in ixgbe_write_mbx_pf_legacy()
941 	ixgbe_check_for_msg_pf(hw, vf_id);  in ixgbe_write_mbx_pf_legacy()
942 	ixgbe_clear_msg_pf(hw, vf_id);  in ixgbe_write_mbx_pf_legacy()
943 	ixgbe_check_for_ack_pf(hw, vf_id);  in ixgbe_write_mbx_pf_legacy()
944 	ixgbe_clear_ack_pf(hw, vf_id);  in ixgbe_write_mbx_pf_legacy()
948 		IXGBE_WRITE_REG_ARRAY(hw, IXGBE_PFMBMEM(vf_id), i, msg[i]);  in ixgbe_write_mbx_pf_legacy()
951 	IXGBE_WRITE_REG(hw, IXGBE_PFMAILBOX(vf_id), IXGBE_PFMAILBOX_STS);  in ixgbe_write_mbx_pf_legacy()
954 	hw->mbx.stats.msgs_tx++;  in ixgbe_write_mbx_pf_legacy()
960  * ixgbe_write_mbx_pf - Places a message in the mailbox
961  * @hw: pointer to the HW structure
968 static s32 ixgbe_write_mbx_pf(struct ixgbe_hw *hw, u32 *msg, u16 size,  in ixgbe_write_mbx_pf()  argument
978 	ret_val = ixgbe_obtain_mbx_lock_pf(hw, vf_id);  in ixgbe_write_mbx_pf()
983 	ixgbe_clear_msg_pf(hw, vf_id);  in ixgbe_write_mbx_pf()
984 	ixgbe_clear_ack_pf(hw, vf_id);  in ixgbe_write_mbx_pf()
988 		IXGBE_WRITE_REG_ARRAY(hw, IXGBE_PFMBMEM(vf_id), i, msg[i]);  in ixgbe_write_mbx_pf()
991 	pf_mailbox = IXGBE_READ_REG(hw, IXGBE_PFMAILBOX(vf_id));  in ixgbe_write_mbx_pf()
993 	IXGBE_WRITE_REG(hw, IXGBE_PFMAILBOX(vf_id), pf_mailbox);  in ixgbe_write_mbx_pf()
997 		ixgbe_poll_for_ack(hw, vf_id);  in ixgbe_write_mbx_pf()
1000 	hw->mbx.stats.msgs_tx++;  in ixgbe_write_mbx_pf()
1003 	hw->mbx.ops[vf_id].release(hw, vf_id);  in ixgbe_write_mbx_pf()
1010  * ixgbe_read_mbx_pf_legacy - Read a message from the mailbox
1011  * @hw: pointer to the HW structure
1020 static s32 ixgbe_read_mbx_pf_legacy(struct ixgbe_hw *hw, u32 *msg, u16 size,  in ixgbe_read_mbx_pf_legacy()  argument
1029 	ret_val = ixgbe_obtain_mbx_lock_pf(hw, vf_id);  in ixgbe_read_mbx_pf_legacy()
1035 		msg[i] = IXGBE_READ_REG_ARRAY(hw, IXGBE_PFMBMEM(vf_id), i);  in ixgbe_read_mbx_pf_legacy()
1038 	IXGBE_WRITE_REG(hw, IXGBE_PFMAILBOX(vf_id), IXGBE_PFMAILBOX_ACK);  in ixgbe_read_mbx_pf_legacy()
1041 	hw->mbx.stats.msgs_rx++;  in ixgbe_read_mbx_pf_legacy()
1047  * ixgbe_read_mbx_pf - Read a message from the mailbox
1048  * @hw: pointer to the HW structure
1057 static s32 ixgbe_read_mbx_pf(struct ixgbe_hw *hw, u32 *msg, u16 size,  in ixgbe_read_mbx_pf()  argument
1067 	ret_val = ixgbe_check_for_msg_pf(hw, vf_id);  in ixgbe_read_mbx_pf()
1071 	ixgbe_clear_msg_pf(hw, vf_id);  in ixgbe_read_mbx_pf()
1075 		msg[i] = IXGBE_READ_REG_ARRAY(hw, IXGBE_PFMBMEM(vf_id), i);  in ixgbe_read_mbx_pf()
1078 	pf_mailbox = IXGBE_READ_REG(hw, IXGBE_PFMAILBOX(vf_id));  in ixgbe_read_mbx_pf()
1080 	IXGBE_WRITE_REG(hw, IXGBE_PFMAILBOX(vf_id), pf_mailbox);  in ixgbe_read_mbx_pf()
1083 	hw->mbx.stats.msgs_rx++;  in ixgbe_read_mbx_pf()
1089  * ixgbe_clear_mbx_pf - Clear Mailbox Memory
1090  * @hw: pointer to the HW structure
1095 static s32 ixgbe_clear_mbx_pf(struct ixgbe_hw *hw, u16 vf_id)  in ixgbe_clear_mbx_pf()  argument
1097 	u16 mbx_size = hw->mbx.size;  in ixgbe_clear_mbx_pf()
1104 		IXGBE_WRITE_REG_ARRAY(hw, IXGBE_PFMBMEM(vf_id), i, 0x0);  in ixgbe_clear_mbx_pf()
1110  * ixgbe_init_mbx_params_pf_id - set initial values for pf mailbox
1111  * @hw: pointer to the HW structure
1114  * Initializes single set of the hw->mbx struct to correct values for pf mailbox
1117 void ixgbe_init_mbx_params_pf_id(struct ixgbe_hw *hw, u16 vf_id)  in ixgbe_init_mbx_params_pf_id()  argument
1119 	struct ixgbe_mbx_info *mbx = &hw->mbx;  in ixgbe_init_mbx_params_pf_id()
1121 	mbx->ops[vf_id].release = ixgbe_release_mbx_lock_dummy;  in ixgbe_init_mbx_params_pf_id()
1122 	mbx->ops[vf_id].read = ixgbe_read_mbx_pf_legacy;  in ixgbe_init_mbx_params_pf_id()
1123 	mbx->ops[vf_id].write = ixgbe_write_mbx_pf_legacy;  in ixgbe_init_mbx_params_pf_id()
1124 	mbx->ops[vf_id].check_for_msg = ixgbe_check_for_msg_pf;  in ixgbe_init_mbx_params_pf_id()
1125 	mbx->ops[vf_id].check_for_ack = ixgbe_check_for_ack_pf;  in ixgbe_init_mbx_params_pf_id()
1126 	mbx->ops[vf_id].check_for_rst = ixgbe_check_for_rst_pf;  in ixgbe_init_mbx_params_pf_id()
1127 	mbx->ops[vf_id].clear = ixgbe_clear_mbx_pf;  in ixgbe_init_mbx_params_pf_id()
1131  * ixgbe_init_mbx_params_pf - set initial values for pf mailbox
1132  * @hw: pointer to the HW structure
1134  * Initializes all sets of the hw->mbx struct to correct values for pf
1138 void ixgbe_init_mbx_params_pf(struct ixgbe_hw *hw)  in ixgbe_init_mbx_params_pf()  argument
1141 	struct ixgbe_mbx_info *mbx = &hw->mbx;  in ixgbe_init_mbx_params_pf()
1144 	if (hw->mac.type != ixgbe_mac_82599EB &&  in ixgbe_init_mbx_params_pf()
1145 	    hw->mac.type != ixgbe_mac_X550 &&  in ixgbe_init_mbx_params_pf()
1146 	    hw->mac.type != ixgbe_mac_X550EM_x &&  in ixgbe_init_mbx_params_pf()
1147 	    hw->mac.type != ixgbe_mac_X550EM_a &&  in ixgbe_init_mbx_params_pf()
1148 	    hw->mac.type != ixgbe_mac_X540)  in ixgbe_init_mbx_params_pf()
1152 	mbx->timeout = IXGBE_VF_MBX_INIT_TIMEOUT;  in ixgbe_init_mbx_params_pf()
1153 	mbx->usec_delay = IXGBE_VF_MBX_INIT_DELAY;  in ixgbe_init_mbx_params_pf()
1154 	mbx->size = IXGBE_VFMAILBOX_SIZE;  in ixgbe_init_mbx_params_pf()
1157 	mbx->stats.msgs_tx = 0;  in ixgbe_init_mbx_params_pf()
1158 	mbx->stats.msgs_rx = 0;  in ixgbe_init_mbx_params_pf()
1159 	mbx->stats.reqs = 0;  in ixgbe_init_mbx_params_pf()
1160 	mbx->stats.acks = 0;  in ixgbe_init_mbx_params_pf()
1161 	mbx->stats.rsts = 0;  in ixgbe_init_mbx_params_pf()
1166 	 * 2. rewrite the code to dynamically allocate mbx->ops[vf_id] for  in ixgbe_init_mbx_params_pf()
1170 		ixgbe_init_mbx_params_pf_id(hw, i);  in ixgbe_init_mbx_params_pf()
1174  * ixgbe_upgrade_mbx_params_pf - Upgrade initial values for pf mailbox
1175  * @hw: pointer to the HW structure
1178  * Initializes the hw->mbx struct to new function set for improved
1181 void ixgbe_upgrade_mbx_params_pf(struct ixgbe_hw *hw, u16 vf_id)  in ixgbe_upgrade_mbx_params_pf()  argument
1183 	struct ixgbe_mbx_info *mbx = &hw->mbx;  in ixgbe_upgrade_mbx_params_pf()
1186 	if (hw->mac.type != ixgbe_mac_82599EB &&  in ixgbe_upgrade_mbx_params_pf()
1187 	    hw->mac.type != ixgbe_mac_X550 &&  in ixgbe_upgrade_mbx_params_pf()
1188 	    hw->mac.type != ixgbe_mac_X550EM_x &&  in ixgbe_upgrade_mbx_params_pf()
1189 	    hw->mac.type != ixgbe_mac_X550EM_a &&  in ixgbe_upgrade_mbx_params_pf()
1190 	    hw->mac.type != ixgbe_mac_X540)  in ixgbe_upgrade_mbx_params_pf()
1193 	mbx->timeout = IXGBE_VF_MBX_INIT_TIMEOUT;  in ixgbe_upgrade_mbx_params_pf()
1194 	mbx->usec_delay = IXGBE_VF_MBX_INIT_DELAY;  in ixgbe_upgrade_mbx_params_pf()
1195 	mbx->size = IXGBE_VFMAILBOX_SIZE;  in ixgbe_upgrade_mbx_params_pf()
1197 	mbx->ops[vf_id].release = ixgbe_release_mbx_lock_pf;  in ixgbe_upgrade_mbx_params_pf()
1198 	mbx->ops[vf_id].read = ixgbe_read_mbx_pf;  in ixgbe_upgrade_mbx_params_pf()
1199 	mbx->ops[vf_id].write = ixgbe_write_mbx_pf;  in ixgbe_upgrade_mbx_params_pf()
1200 	mbx->ops[vf_id].check_for_msg = ixgbe_check_for_msg_pf;  in ixgbe_upgrade_mbx_params_pf()
1201 	mbx->ops[vf_id].check_for_ack = ixgbe_check_for_ack_pf;  in ixgbe_upgrade_mbx_params_pf()
1202 	mbx->ops[vf_id].check_for_rst = ixgbe_check_for_rst_pf;  in ixgbe_upgrade_mbx_params_pf()
1203 	mbx->ops[vf_id].clear = ixgbe_clear_mbx_pf;  in ixgbe_upgrade_mbx_params_pf()
1205 	mbx->stats.msgs_tx = 0;  in ixgbe_upgrade_mbx_params_pf()
1206 	mbx->stats.msgs_rx = 0;  in ixgbe_upgrade_mbx_params_pf()
1207 	mbx->stats.reqs = 0;  in ixgbe_upgrade_mbx_params_pf()
1208 	mbx->stats.acks = 0;  in ixgbe_upgrade_mbx_params_pf()
1209 	mbx->stats.rsts = 0;  in ixgbe_upgrade_mbx_params_pf()