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
9  * Hyper-V to support PF/VF communication.
16 	struct ixgbe_mbx_info *mbx = &hw->mbx;  in ixgbevf_write_msg_read_ack()
17 	s32 retval = mbx->ops.write_posted(hw, msg, size);  in ixgbevf_write_msg_read_ack()
22 	return mbx->ops.read_posted(hw, retmsg, size);  in ixgbevf_write_msg_read_ack()
26  *  ixgbevf_start_hw_vf - Prepare hardware for Tx/Rx
30  *  all on chip counters, initializes receive address registers, multicast
37 	hw->adapter_stopped = false;  in ixgbevf_start_hw_vf()
43  *  ixgbevf_init_hw_vf - virtual function hardware initialization
51 	s32 status = hw->mac.ops.start_hw(hw);  in ixgbevf_init_hw_vf()
53 	hw->mac.ops.get_mac_addr(hw, hw->mac.addr);  in ixgbevf_init_hw_vf()
59  *  ixgbevf_reset_hw_vf - Performs hardware reset
67 	struct ixgbe_mbx_info *mbx = &hw->mbx;  in ixgbevf_reset_hw_vf()
74 	hw->mac.ops.stop_adapter(hw);  in ixgbevf_reset_hw_vf()
77 	hw->api_version = ixgbe_mbox_api_10;  in ixgbevf_reset_hw_vf()
83 	while (!mbx->ops.check_for_rst(hw) && timeout) {  in ixgbevf_reset_hw_vf()
84 		timeout--;  in ixgbevf_reset_hw_vf()
92 	mbx->timeout = IXGBE_VF_MBX_INIT_TIMEOUT;  in ixgbevf_reset_hw_vf()
95 	mbx->ops.write_posted(hw, msgbuf, 1);  in ixgbevf_reset_hw_vf()
101 	 * on the mac address in word 3  in ixgbevf_reset_hw_vf()
103 	ret_val = mbx->ops.read_posted(hw, msgbuf, IXGBE_VF_PERMADDR_MSG_LEN);  in ixgbevf_reset_hw_vf()
108 	 * to indicate that no MAC address has yet been assigned for  in ixgbevf_reset_hw_vf()
116 		ether_addr_copy(hw->mac.perm_addr, addr);  in ixgbevf_reset_hw_vf()
118 	hw->mac.mc_filter_type = msgbuf[IXGBE_VF_MC_TYPE_WORD];  in ixgbevf_reset_hw_vf()
124  * ixgbevf_hv_reset_hw_vf - reset via Hyper-V
127  * Hyper-V variant; the VF/PF communication is through the PCI
133 	struct ixgbevf_adapter *adapter = hw->back;  in ixgbevf_hv_reset_hw_vf()
137 		pci_read_config_byte(adapter->pdev,  in ixgbevf_hv_reset_hw_vf()
139 				     &hw->mac.perm_addr[i]);  in ixgbevf_hv_reset_hw_vf()
142 	pr_err("PCI_MMCONFIG needs to be enabled for Hyper-V\n");  in ixgbevf_hv_reset_hw_vf()
143 	return -EOPNOTSUPP;  in ixgbevf_hv_reset_hw_vf()
148  *  ixgbevf_stop_hw_vf - Generic stop Tx/Rx units
165 	hw->adapter_stopped = true;  in ixgbevf_stop_hw_vf()
168 	number_of_queues = hw->mac.max_rx_queues;  in ixgbevf_stop_hw_vf()
186 	number_of_queues = hw->mac.max_tx_queues;  in ixgbevf_stop_hw_vf()
199  *  ixgbevf_mta_vector - Determines bit-vector in multicast table to set
201  *  @mc_addr: the multicast address
203  *  Extracts the 12 bits, from a multicast address, to determine which
204  *  bit-vector to set in the multicast table. The hardware uses 12 bits, from
205  *  incoming Rx multicast addresses, to determine the bit-vector to check in
206  *  the MTA. Which of the 4 combination, of 12-bits, the hardware uses is set
214 	switch (hw->mac.mc_filter_type) {  in ixgbevf_mta_vector()
215 	case 0:   /* use bits [47:36] of the address */  in ixgbevf_mta_vector()
218 	case 1:   /* use bits [46:35] of the address */  in ixgbevf_mta_vector()
221 	case 2:   /* use bits [45:34] of the address */  in ixgbevf_mta_vector()
224 	case 3:   /* use bits [43:32] of the address */  in ixgbevf_mta_vector()
231 	/* vector can only be 12-bits or boundary will be exceeded */  in ixgbevf_mta_vector()
237  *  ixgbevf_get_mac_addr_vf - Read device MAC address
239  *  @mac_addr: pointer to storage for retrieved MAC address
243 	ether_addr_copy(mac_addr, hw->mac.perm_addr);  in ixgbevf_get_mac_addr_vf()
273 			return -ENOMEM;  in ixgbevf_set_uc_addr_vf()
281 	return -EOPNOTSUPP;  in ixgbevf_hv_set_uc_addr_vf()
285  * ixgbevf_get_reta_locked - get the RSS redirection table (RETA) contents.
293  *          if API doesn't support this operation - (-EOPNOTSUPP).
313 	switch (hw->api_version) {  in ixgbevf_get_reta_locked()
317 		if (hw->mac.type < ixgbe_mac_X550_vf)  in ixgbevf_get_reta_locked()
321 		return -EOPNOTSUPP;  in ixgbevf_get_reta_locked()
326 	err = hw->mbx.ops.write_posted(hw, msgbuf, 1);  in ixgbevf_get_reta_locked()
331 	err = hw->mbx.ops.read_posted(hw, msgbuf, dwords + 1);  in ixgbevf_get_reta_locked()
338 	/* If the operation has been refused by a PF return -EPERM */  in ixgbevf_get_reta_locked()
340 		return -EPERM;  in ixgbevf_get_reta_locked()
361  * ixgbevf_get_rss_key_locked - get the RSS Random Key
368  *          if API doesn't support this operation - (-EOPNOTSUPP).
381 	switch (hw->api_version) {  in ixgbevf_get_rss_key_locked()
385 		if (hw->mac.type < ixgbe_mac_X550_vf)  in ixgbevf_get_rss_key_locked()
389 		return -EOPNOTSUPP;  in ixgbevf_get_rss_key_locked()
393 	err = hw->mbx.ops.write_posted(hw, msgbuf, 1);  in ixgbevf_get_rss_key_locked()
398 	err = hw->mbx.ops.read_posted(hw, msgbuf, 11);  in ixgbevf_get_rss_key_locked()
405 	/* If the operation has been refused by a PF return -EPERM */  in ixgbevf_get_rss_key_locked()
407 		return -EPERM;  in ixgbevf_get_rss_key_locked()
422  *  ixgbevf_set_rar_vf - set device MAC address
424  *  @index: Receive address register to write
425  *  @addr: Address to put into receive address register
443 	/* if nacked the address was rejected, use "perm_addr" */  in ixgbevf_set_rar_vf()
446 		ixgbevf_get_mac_addr_vf(hw, hw->mac.addr);  in ixgbevf_set_rar_vf()
454  *  ixgbevf_hv_set_rar_vf - set device MAC address Hyper-V variant
456  *  @index: Receive address register to write
457  *  @addr: Address to put into receive address register
460  * We don't really allow setting the device MAC address. However,
461  * if the address being set is the permanent MAC address we will
467 	if (ether_addr_equal(addr, hw->mac.perm_addr))  in ixgbevf_hv_set_rar_vf()
470 	return -EOPNOTSUPP;  in ixgbevf_hv_set_rar_vf()
474  *  ixgbevf_update_mc_addr_list_vf - Update Multicast addresses
493 	 * It would be unusual for a server to request that many multi-cast  in ixgbevf_update_mc_addr_list_vf()
507 		if (is_link_local_ether_addr(ha->addr))  in ixgbevf_update_mc_addr_list_vf()
510 		vector_list[i++] = ixgbevf_mta_vector(hw, ha->addr);  in ixgbevf_update_mc_addr_list_vf()
518  * ixgbevf_hv_update_mc_addr_list_vf - stub
522  * Hyper-V variant - just a stub.
527 	return -EOPNOTSUPP;  in ixgbevf_hv_update_mc_addr_list_vf()
531  *  ixgbevf_update_xcast_mode - Update Multicast mode
542 	switch (hw->api_version) {  in ixgbevf_update_xcast_mode()
546 			return -EOPNOTSUPP;  in ixgbevf_update_xcast_mode()
552 		return -EOPNOTSUPP;  in ixgbevf_update_xcast_mode()
565 		return -EPERM;  in ixgbevf_update_xcast_mode()
571  * ixgbevf_hv_update_xcast_mode - stub
575  * Hyper-V variant - just a stub.
579 	return -EOPNOTSUPP;  in ixgbevf_hv_update_xcast_mode()
583  *  ixgbevf_set_vfta_vf - Set/Unset VLAN filter table address
617  * ixgbevf_hv_set_vfta_vf - * Hyper-V variant - just a stub.
626 	return -EOPNOTSUPP;  in ixgbevf_hv_set_vfta_vf()
630  *  ixgbevf_setup_mac_link_vf - Setup MAC link settings
647  *  ixgbevf_check_mac_link_vf - Get link/speed status
660 	struct ixgbe_mbx_info *mbx = &hw->mbx;  in ixgbevf_check_mac_link_vf()
661 	struct ixgbe_mac_info *mac = &hw->mac;  in ixgbevf_check_mac_link_vf()  local
667 	if (!mbx->ops.check_for_rst(hw) || !mbx->timeout)  in ixgbevf_check_mac_link_vf()
668 		mac->get_link_status = true;  in ixgbevf_check_mac_link_vf()
670 	if (!mac->get_link_status)  in ixgbevf_check_mac_link_vf()
681 	if (mac->type == ixgbe_mac_82599_vf) {  in ixgbevf_check_mac_link_vf()
708 	if (mbx->ops.read(hw, &in_msg, 1))  in ixgbevf_check_mac_link_vf()
714 			ret_val = -1;  in ixgbevf_check_mac_link_vf()
719 	if (!mbx->timeout) {  in ixgbevf_check_mac_link_vf()
720 		ret_val = -1;  in ixgbevf_check_mac_link_vf()
727 	mac->get_link_status = false;  in ixgbevf_check_mac_link_vf()
730 	*link_up = !mac->get_link_status;  in ixgbevf_check_mac_link_vf()
735  * ixgbevf_hv_check_mac_link_vf - check link
741  * Hyper-V variant; there is no mailbox communication.
748 	struct ixgbe_mbx_info *mbx = &hw->mbx;  in ixgbevf_hv_check_mac_link_vf()
749 	struct ixgbe_mac_info *mac = &hw->mac;  in ixgbevf_hv_check_mac_link_vf()  local
753 	if (!mbx->ops.check_for_rst(hw) || !mbx->timeout)  in ixgbevf_hv_check_mac_link_vf()
754 		mac->get_link_status = true;  in ixgbevf_hv_check_mac_link_vf()
756 	if (!mac->get_link_status)  in ixgbevf_hv_check_mac_link_vf()
767 	if (mac->type == ixgbe_mac_82599_vf) {  in ixgbevf_hv_check_mac_link_vf()
794 	mac->get_link_status = false;  in ixgbevf_hv_check_mac_link_vf()
797 	*link_up = !mac->get_link_status;  in ixgbevf_hv_check_mac_link_vf()
802  *  ixgbevf_set_rlpml_vf - Set the maximum receive packet length
826  * ixgbevf_hv_set_rlpml_vf - Set the maximum receive packet length
829  * Hyper-V variant.
835 	/* If we are on Hyper-V, we implement this functionality  in ixgbevf_hv_set_rlpml_vf()
847  *  ixgbevf_negotiate_api_version_vf - Negotiate supported API version
867 			hw->api_version = api;  in ixgbevf_negotiate_api_version_vf()
878  *  ixgbevf_hv_negotiate_api_version_vf - Negotiate supported API version
881  *  Hyper-V version - only ixgbe_mbox_api_10 supported.
885 	/* Hyper-V only supports api version ixgbe_mbox_api_10 */  in ixgbevf_hv_negotiate_api_version_vf()
899 	switch (hw->api_version) {  in ixgbevf_get_queues()
925 		hw->mac.max_tx_queues = msg[IXGBE_VF_TX_QUEUES];  in ixgbevf_get_queues()
926 		if (hw->mac.max_tx_queues == 0 ||  in ixgbevf_get_queues()
927 		    hw->mac.max_tx_queues > IXGBE_VF_MAX_TX_QUEUES)  in ixgbevf_get_queues()
928 			hw->mac.max_tx_queues = IXGBE_VF_MAX_TX_QUEUES;  in ixgbevf_get_queues()
930 		hw->mac.max_rx_queues = msg[IXGBE_VF_RX_QUEUES];  in ixgbevf_get_queues()
931 		if (hw->mac.max_rx_queues == 0 ||  in ixgbevf_get_queues()
932 		    hw->mac.max_rx_queues > IXGBE_VF_MAX_RX_QUEUES)  in ixgbevf_get_queues()
933 			hw->mac.max_rx_queues = IXGBE_VF_MAX_RX_QUEUES;  in ixgbevf_get_queues()
937 		if (*num_tcs > hw->mac.max_rx_queues)  in ixgbevf_get_queues()
941 		/* default to queue 0 on out-of-bounds queue number */  in ixgbevf_get_queues()
942 		if (*default_tc >= hw->mac.max_tx_queues)  in ixgbevf_get_queues()
984 	.mac = ixgbe_mac_82599_vf,
989 	.mac = ixgbe_mac_82599_vf,
994 	.mac = ixgbe_mac_X540_vf,
999 	.mac = ixgbe_mac_X540_vf,
1004 	.mac = ixgbe_mac_X550_vf,
1009 	.mac = ixgbe_mac_X550_vf,
1014 	.mac = ixgbe_mac_X550EM_x_vf,
1019 	.mac = ixgbe_mac_X550EM_x_vf,
1024 	.mac = ixgbe_mac_x550em_a_vf,