2   SPDX-License-Identifier: BSD-3-Clause
4   Copyright (c) 2001-2020, Intel Corporation
39 static s32 e1000_init_phy_params_vf(struct e1000_hw *hw);
40 static s32 e1000_init_nvm_params_vf(struct e1000_hw *hw);
41 static void e1000_release_vf(struct e1000_hw *hw);
42 static s32 e1000_acquire_vf(struct e1000_hw *hw);
43 static s32 e1000_setup_link_vf(struct e1000_hw *hw);
44 static s32 e1000_get_bus_info_pcie_vf(struct e1000_hw *hw);
45 static s32 e1000_init_mac_params_vf(struct e1000_hw *hw);
46 static s32 e1000_check_for_link_vf(struct e1000_hw *hw);
47 static s32 e1000_get_link_up_info_vf(struct e1000_hw *hw, u16 *speed,
49 static s32 e1000_init_hw_vf(struct e1000_hw *hw);
50 static s32 e1000_reset_hw_vf(struct e1000_hw *hw);
51 static void e1000_update_mc_addr_list_vf(struct e1000_hw *hw, u8 *, u32);
56  *  e1000_init_phy_params_vf - Inits PHY params
57  *  @hw: pointer to the HW structure
59  *  Doesn't do much - there's no PHY available to the VF.
61 static s32 e1000_init_phy_params_vf(struct e1000_hw *hw)  in e1000_init_phy_params_vf()  argument
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
73  *  @hw: pointer to the HW structure
75  *  Doesn't do much - there's no NVM available to the VF.
77 static s32 e1000_init_nvm_params_vf(struct e1000_hw *hw)  in e1000_init_nvm_params_vf()  argument
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
89  *  @hw: pointer to the HW structure
91 static s32 e1000_init_mac_params_vf(struct e1000_hw *hw)  in e1000_init_mac_params_vf()  argument
93 	struct e1000_mac_info *mac = &hw->mac;  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()
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()
123 	/* hw initialization */  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()
129 	/* multicast address update */  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()
131 	/* set mac address */  in e1000_init_mac_params_vf()
132 	mac->ops.rar_set = e1000_rar_set_vf;  in e1000_init_mac_params_vf()
133 	/* read mac address */  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
142  *  @hw: pointer to the HW structure
144 void e1000_init_function_pointers_vf(struct e1000_hw *hw)  in e1000_init_function_pointers_vf()  argument
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.
156  *  @hw: pointer to the HW structure
162 static s32 e1000_acquire_vf(struct e1000_hw E1000_UNUSEDARG *hw)  in e1000_acquire_vf()  argument
164 	return -E1000_ERR_PHY;  in e1000_acquire_vf()
168  *  e1000_release_vf - Release PHY or NVM
169  *  @hw: pointer to the HW structure
175 static void e1000_release_vf(struct e1000_hw E1000_UNUSEDARG *hw)  in e1000_release_vf()  argument
181  *  e1000_setup_link_vf - Sets up link.
182  *  @hw: pointer to the HW structure
186 static s32 e1000_setup_link_vf(struct e1000_hw E1000_UNUSEDARG *hw)  in e1000_setup_link_vf()  argument
194  *  e1000_get_bus_info_pcie_vf - Gets the bus info.
195  *  @hw: pointer to the HW structure
199 static s32 e1000_get_bus_info_pcie_vf(struct e1000_hw *hw)  in e1000_get_bus_info_pcie_vf()  argument
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.
214  *  @hw: pointer to the HW structure
221 static s32 e1000_get_link_up_info_vf(struct e1000_hw *hw, u16 *speed,  in e1000_get_link_up_info_vf()  argument
228 	status = E1000_READ_REG(hw, E1000_STATUS);  in e1000_get_link_up_info_vf()
252  *  e1000_reset_hw_vf - Resets the HW
253  *  @hw: pointer to the HW structure
258 static s32 e1000_reset_hw_vf(struct e1000_hw *hw)  in e1000_reset_hw_vf()  argument
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()
269 	ctrl = E1000_READ_REG(hw, E1000_CTRL);  in e1000_reset_hw_vf()
270 	E1000_WRITE_REG(hw, E1000_CTRL, ctrl | E1000_CTRL_RST);  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
303  *  @hw: pointer to the HW structure
307 static s32 e1000_init_hw_vf(struct e1000_hw *hw)  in e1000_init_hw_vf()  argument
311 	/* attempt to set and restore our mac address */  in e1000_init_hw_vf()
312 	e1000_rar_set_vf(hw, hw->mac.addr, 0);  in e1000_init_hw_vf()
318  *  e1000_rar_set_vf - set device MAC address
319  *  @hw: pointer to the HW structure
320  *  @addr: pointer to the receive address
321  *  @index receive address array register
323 static int e1000_rar_set_vf(struct e1000_hw *hw, u8 *addr,  in e1000_rar_set_vf()  argument
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()
341 	/* if nacked the address was rejected, use "perm_addr" */  in e1000_rar_set_vf()
344 		e1000_read_mac_addr_vf(hw);  in e1000_rar_set_vf()
350  *  e1000_hash_mc_addr_vf - Generate a multicast hash value
351  *  @hw: pointer to the HW structure
352  *  @mc_addr: pointer to a multicast address
354  *  Generates a multicast address hash value which is used to determine
355  *  the multicast filter table array address and new table value.
357 static u32 e1000_hash_mc_addr_vf(struct e1000_hw *hw, u8 *mc_addr)  in e1000_hash_mc_addr_vf()  argument
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()
380 static void e1000_write_msg_read_ack(struct e1000_hw *hw,  in e1000_write_msg_read_ack()  argument
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
393  *  @hw: pointer to the HW structure
400 void e1000_update_mc_addr_list_vf(struct e1000_hw *hw,  in e1000_update_mc_addr_list_vf()  argument
411 	 * 16 bit words available in our HW msg buffer (minus 1 for the  in e1000_update_mc_addr_list_vf()
415 	 * It would be unusual for a server to request that many multi-cast  in e1000_update_mc_addr_list_vf()
431 		hash_value = e1000_hash_mc_addr_vf(hw, mc_addr_list);  in e1000_update_mc_addr_list_vf()
437 	e1000_write_msg_read_ack(hw, msgbuf, E1000_VFMAILBOX_SIZE);  in e1000_update_mc_addr_list_vf()
441  *  e1000_vfta_set_vf - Set/Unset vlan filter table address
442  *  @hw: pointer to the HW structure
446 void e1000_vfta_set_vf(struct e1000_hw *hw, u16 vid, bool set)  in e1000_vfta_set_vf()  argument
456 	e1000_write_msg_read_ack(hw, msgbuf, 2);  in e1000_vfta_set_vf()
459 /** e1000_rlpml_set_vf - Set the maximum receive packet length
460  *  @hw: pointer to the HW structure
463 void e1000_rlpml_set_vf(struct e1000_hw *hw, u16 max_size)  in e1000_rlpml_set_vf()  argument
470 	e1000_write_msg_read_ack(hw, msgbuf, 2);  in e1000_rlpml_set_vf()
474  *  e1000_promisc_set_vf - Set flags for Unicast or Multicast promisc
475  *  @hw: pointer to the HW structure
479 s32 e1000_promisc_set_vf(struct e1000_hw *hw, enum e1000_promisc_type type)  in e1000_promisc_set_vf()  argument
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
514  *  @hw: pointer to the HW structure
516 static s32 e1000_read_mac_addr_vf(struct e1000_hw *hw)  in e1000_read_mac_addr_vf()  argument
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
528  *  @hw: pointer to the HW structure
534 static s32 e1000_check_for_link_vf(struct e1000_hw *hw)  in e1000_check_for_link_vf()  argument
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()
545 	 * in this case that could mean a link change, device reset,  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()
557 	if (!(E1000_READ_REG(hw, E1000_STATUS) & E1000_STATUS_LU))  in e1000_check_for_link_vf()
562 	if (mbx->ops.read(hw, &in_msg, 1, 0))  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()