2   SPDX-License-Identifier: BSD-3-Clause
4   Copyright (c) 2001-2020, Intel Corporation
56  *  e1000_init_phy_params_vf - Inits PHY params
59  *  Doesn't do much - there's no PHY available to the VF.
64 	hw->phy.type = e1000_phy_vf;  in e1000_init_phy_params_vf()
65 	hw->phy.ops.acquire = e1000_acquire_vf;  in e1000_init_phy_params_vf()
66 	hw->phy.ops.release = e1000_release_vf;  in e1000_init_phy_params_vf()
72  *  e1000_init_nvm_params_vf - Inits NVM params
75  *  Doesn't do much - there's no NVM available to the VF.
80 	hw->nvm.type = e1000_nvm_none;  in e1000_init_nvm_params_vf()
81 	hw->nvm.ops.acquire = e1000_acquire_vf;  in e1000_init_nvm_params_vf()
82 	hw->nvm.ops.release = e1000_release_vf;  in e1000_init_nvm_params_vf()
88  *  e1000_init_mac_params_vf - Inits MAC params
93 	struct e1000_mac_info *mac = &hw->mac;  in e1000_init_mac_params_vf()
99 	 * Virtual functions don't care what they're media type is as they  in e1000_init_mac_params_vf()
100 	 * have no direct access to the PHY, or the media.  That is handled  in e1000_init_mac_params_vf()
103 	hw->phy.media_type = e1000_media_type_unknown;  in e1000_init_mac_params_vf()
106 	mac->asf_firmware_present = false;  in e1000_init_mac_params_vf()
108 	mac->arc_subsystem_valid = false;  in e1000_init_mac_params_vf()
109 	/* Disable adaptive IFS mode so the generic funcs don't do anything */  in e1000_init_mac_params_vf()
110 	mac->adaptive_ifs = false;  in e1000_init_mac_params_vf()
111 	/* VF's have no MTA Registers - PF feature only */  in e1000_init_mac_params_vf()
112 	mac->mta_reg_count = 128;  in e1000_init_mac_params_vf()
114 	mac->rar_entry_count = 1;  in e1000_init_mac_params_vf()
118 	mac->ops.setup_link = e1000_setup_link_vf;  in e1000_init_mac_params_vf()
120 	mac->ops.get_bus_info = e1000_get_bus_info_pcie_vf;  in e1000_init_mac_params_vf()
122 	mac->ops.reset_hw = e1000_reset_hw_vf;  in e1000_init_mac_params_vf()
124 	mac->ops.init_hw = e1000_init_hw_vf;  in e1000_init_mac_params_vf()
126 	mac->ops.check_for_link = e1000_check_for_link_vf;  in e1000_init_mac_params_vf()
128 	mac->ops.get_link_up_info = e1000_get_link_up_info_vf;  in e1000_init_mac_params_vf()
130 	mac->ops.update_mc_addr_list = e1000_update_mc_addr_list_vf;  in e1000_init_mac_params_vf()
132 	mac->ops.rar_set = e1000_rar_set_vf;  in e1000_init_mac_params_vf()
134 	mac->ops.read_mac_addr = e1000_read_mac_addr_vf;  in e1000_init_mac_params_vf()
141  *  e1000_init_function_pointers_vf - Inits function pointers
148 	hw->mac.ops.init_params = e1000_init_mac_params_vf;  in e1000_init_function_pointers_vf()
149 	hw->nvm.ops.init_params = e1000_init_nvm_params_vf;  in e1000_init_function_pointers_vf()
150 	hw->phy.ops.init_params = e1000_init_phy_params_vf;  in e1000_init_function_pointers_vf()
151 	hw->mbx.ops.init_params = e1000_init_mbx_params_vf;  in e1000_init_function_pointers_vf()
155  *  e1000_acquire_vf - Acquire rights to access PHY or NVM.
158  *  There is no PHY or NVM so we want all attempts to acquire these to fail.
159  *  In addition, the MAC registers to access PHY/NVM don't exist so we don't
164 	return -E1000_ERR_PHY;  in e1000_acquire_vf()
168  *  e1000_release_vf - Release PHY or NVM
171  *  There is no PHY or NVM so we want all attempts to acquire these to fail.
172  *  In addition, the MAC registers to access PHY/NVM don't exist so we don't
181  *  e1000_setup_link_vf - Sets up link.
194  *  e1000_get_bus_info_pcie_vf - Gets the bus info.
201 	struct e1000_bus_info *bus = &hw->bus;  in e1000_get_bus_info_pcie_vf()
205 	/* Do not set type PCI-E because we don't want disable master to run */  in e1000_get_bus_info_pcie_vf()
206 	bus->type = e1000_bus_type_reserved;  in e1000_get_bus_info_pcie_vf()
207 	bus->speed = e1000_bus_speed_2500;  in e1000_get_bus_info_pcie_vf()
213  *  e1000_get_link_up_info_vf - Gets link info.
218  *  Since we cannot read the PHY and get accurate link info, we must rely upon
252  *  e1000_reset_hw_vf - Resets the HW
260 	struct e1000_mbx_info *mbx = &hw->mbx;  in e1000_reset_hw_vf()
262 	s32 ret_val = -E1000_ERR_MAC_INIT;  in e1000_reset_hw_vf()
273 	while (!mbx->ops.check_for_rst(hw, 0) && timeout) {  in e1000_reset_hw_vf()
274 		timeout--;  in e1000_reset_hw_vf()
280 		mbx->timeout = E1000_VF_MBX_INIT_TIMEOUT;  in e1000_reset_hw_vf()
283 		mbx->ops.write_posted(hw, msgbuf, 1, 0);  in e1000_reset_hw_vf()
288 		ret_val = mbx->ops.read_posted(hw, msgbuf, 3, 0);  in e1000_reset_hw_vf()
292 				memcpy(hw->mac.perm_addr, addr, 6);  in e1000_reset_hw_vf()
294 				ret_val = -E1000_ERR_MAC_INIT;  in e1000_reset_hw_vf()
302  *  e1000_init_hw_vf - Inits the HW
312 	e1000_rar_set_vf(hw, hw->mac.addr, 0);  in e1000_init_hw_vf()
318  *  e1000_rar_set_vf - set device MAC address
326 	struct e1000_mbx_info *mbx = &hw->mbx;  in e1000_rar_set_vf()
334 	ret_val = mbx->ops.write_posted(hw, msgbuf, 3, 0);  in e1000_rar_set_vf()
337 		ret_val = mbx->ops.read_posted(hw, msgbuf, 3, 0);  in e1000_rar_set_vf()
350  *  e1000_hash_mc_addr_vf - Generate a multicast hash value
365 	hash_mask = (hw->mac.mta_reg_count * 32) - 1;  in e1000_hash_mc_addr_vf()
368 	 * The bit_shift is the number of left-shifts  in e1000_hash_mc_addr_vf()
374 	hash_value = hash_mask & (((mc_addr[4] >> (8 - bit_shift)) |  in e1000_hash_mc_addr_vf()
383 	struct e1000_mbx_info *mbx = &hw->mbx;  in e1000_write_msg_read_ack()
385 	s32 retval = mbx->ops.write_posted(hw, msg, size, 0);  in e1000_write_msg_read_ack()
388 		mbx->ops.read_posted(hw, retmsg, E1000_VFMAILBOX_SIZE, 0);  in e1000_write_msg_read_ack()
392  *  e1000_update_mc_addr_list_vf - Update Multicast addresses
415 	 * It would be unusual for a server to request that many multi-cast  in e1000_update_mc_addr_list_vf()
441  *  e1000_vfta_set_vf - Set/Unset vlan filter table address
459 /** e1000_rlpml_set_vf - Set the maximum receive packet length
474  *  e1000_promisc_set_vf - Set flags for Unicast or Multicast promisc
481 	struct e1000_mbx_info *mbx = &hw->mbx;  in e1000_promisc_set_vf()
498 		return -E1000_ERR_MAC_INIT;  in e1000_promisc_set_vf()
501 	 ret_val = mbx->ops.write_posted(hw, &msgbuf, 1, 0);  in e1000_promisc_set_vf()
504 		ret_val = mbx->ops.read_posted(hw, &msgbuf, 1, 0);  in e1000_promisc_set_vf()
507 		ret_val = -E1000_ERR_MAC_INIT;  in e1000_promisc_set_vf()
513  *  e1000_read_mac_addr_vf - Read device MAC address
521 		hw->mac.addr[i] = hw->mac.perm_addr[i];  in e1000_read_mac_addr_vf()
527  *  e1000_check_for_link_vf - Check for link for a virtual interface
536 	struct e1000_mbx_info *mbx = &hw->mbx;  in e1000_check_for_link_vf()
537 	struct e1000_mac_info *mac = &hw->mac;  in e1000_check_for_link_vf()
550 	if (!mbx->ops.check_for_rst(hw, 0) || !mbx->timeout)  in e1000_check_for_link_vf()
551 		mac->get_link_status = true;  in e1000_check_for_link_vf()
553 	if (!mac->get_link_status)  in e1000_check_for_link_vf()
561 	 * until we are called again and don't report an error */  in e1000_check_for_link_vf()
562 	if (mbx->ops.read(hw, &in_msg, 1, 0))  in e1000_check_for_link_vf()
565 	/* if incoming message isn't clear to send we are waiting on response */  in e1000_check_for_link_vf()
569 			ret_val = -E1000_ERR_MAC_INIT;  in e1000_check_for_link_vf()
576 	if (!mbx->timeout) {  in e1000_check_for_link_vf()
577 		ret_val = -E1000_ERR_MAC_INIT;  in e1000_check_for_link_vf()
583 	mac->get_link_status = false;  in e1000_check_for_link_vf()