/******************************************************************************* * * Intel 10 Gigabit PCI Express Linux driver * Copyright(c) 1999 - 2016 Intel Corporation. * * This program is free software; you can redistribute it and/or modify it * under the terms and conditions of the GNU General Public License, * version 2, as published by the Free Software Foundation. * * This program is distributed in the hope it will be useful, but WITHOUT * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for * more details. * * The full GNU General Public License is included in this distribution in * the file called "COPYING". * * Contact Information: * Linux NICS * e1000-devel Mailing List * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497 * ******************************************************************************/ #include "ixgbe_x540.h" #include "ixgbe_type.h" #include "ixgbe_common.h" #include "ixgbe_phy.h" static s32 ixgbe_setup_kr_speed_x550em(struct ixgbe_hw *, ixgbe_link_speed); static s32 ixgbe_setup_fc_x550em(struct ixgbe_hw *); static void ixgbe_fc_autoneg_fiber_x550em_a(struct ixgbe_hw *); static void ixgbe_fc_autoneg_backplane_x550em_a(struct ixgbe_hw *); static s32 ixgbe_setup_fc_backplane_x550em_a(struct ixgbe_hw *); static s32 ixgbe_get_invariants_X550_x(struct ixgbe_hw *hw) { struct ixgbe_mac_info *mac = &hw->mac; struct ixgbe_phy_info *phy = &hw->phy; struct ixgbe_link_info *link = &hw->link; /* Start with X540 invariants, since so simular */ ixgbe_get_invariants_X540(hw); if (mac->ops.get_media_type(hw) != ixgbe_media_type_copper) phy->ops.set_phy_power = NULL; link->addr = IXGBE_CS4227; return 0; } static s32 ixgbe_get_invariants_X550_a(struct ixgbe_hw *hw) { struct ixgbe_mac_info *mac = &hw->mac; struct ixgbe_phy_info *phy = &hw->phy; /* Start with X540 invariants, since so simular */ ixgbe_get_invariants_X540(hw); if (mac->ops.get_media_type(hw) != ixgbe_media_type_copper) phy->ops.set_phy_power = NULL; return 0; } /** ixgbe_setup_mux_ctl - Setup ESDP register for I2C mux control * @hw: pointer to hardware structure **/ static void ixgbe_setup_mux_ctl(struct ixgbe_hw *hw) { u32 esdp = IXGBE_READ_REG(hw, IXGBE_ESDP); if (hw->bus.lan_id) { esdp &= ~(IXGBE_ESDP_SDP1_NATIVE | IXGBE_ESDP_SDP1); esdp |= IXGBE_ESDP_SDP1_DIR; } esdp &= ~(IXGBE_ESDP_SDP0_NATIVE | IXGBE_ESDP_SDP0_DIR); IXGBE_WRITE_REG(hw, IXGBE_ESDP, esdp); IXGBE_WRITE_FLUSH(hw); } /** * ixgbe_read_cs4227 - Read CS4227 register * @hw: pointer to hardware structure * @reg: register number to write * @value: pointer to receive value read * * Returns status code */ static s32 ixgbe_read_cs4227(struct ixgbe_hw *hw, u16 reg, u16 *value) { return hw->link.ops.read_link_unlocked(hw, hw->link.addr, reg, value); } /** * ixgbe_write_cs4227 - Write CS4227 register * @hw: pointer to hardware structure * @reg: register number to write * @value: value to write to register * * Returns status code */ static s32 ixgbe_write_cs4227(struct ixgbe_hw *hw, u16 reg, u16 value) { return hw->link.ops.write_link_unlocked(hw, hw->link.addr, reg, value); } /** * ixgbe_read_pe - Read register from port expander * @hw: pointer to hardware structure * @reg: register number to read * @value: pointer to receive read value * * Returns status code */ static s32 ixgbe_read_pe(struct ixgbe_hw *hw, u8 reg, u8 *value) { s32 status; status = ixgbe_read_i2c_byte_generic_unlocked(hw, reg, IXGBE_PE, value); if (status) hw_err(hw, "port expander access failed with %d\n", status); return status; } /** * ixgbe_write_pe - Write register to port expander * @hw: pointer to hardware structure * @reg: register number to write * @value: value to write * * Returns status code */ static s32 ixgbe_write_pe(struct ixgbe_hw *hw, u8 reg, u8 value) { s32 status; status = ixgbe_write_i2c_byte_generic_unlocked(hw, reg, IXGBE_PE, value); if (status) hw_err(hw, "port expander access failed with %d\n", status); return status; } /** * ixgbe_reset_cs4227 - Reset CS4227 using port expander * @hw: pointer to hardware structure * * This function assumes that the caller has acquired the proper semaphore. * Returns error code */ static s32 ixgbe_reset_cs4227(struct ixgbe_hw *hw) { s32 status; u32 retry; u16 value; u8 reg; /* Trigger hard reset. */ status = ixgbe_read_pe(hw, IXGBE_PE_OUTPUT, ®); if (status) return status; reg |= IXGBE_PE_BIT1; status = ixgbe_write_pe(hw, IXGBE_PE_OUTPUT, reg); if (status) return status; status = ixgbe_read_pe(hw, IXGBE_PE_CONFIG, ®); if (status) return status; reg &= ~IXGBE_PE_BIT1; status = ixgbe_write_pe(hw, IXGBE_PE_CONFIG, reg); if (status) return status; status = ixgbe_read_pe(hw, IXGBE_PE_OUTPUT, ®); if (status) return status; reg &= ~IXGBE_PE_BIT1; status = ixgbe_write_pe(hw, IXGBE_PE_OUTPUT, reg); if (status) return status; usleep_range(IXGBE_CS4227_RESET_HOLD, IXGBE_CS4227_RESET_HOLD + 100); status = ixgbe_read_pe(hw, IXGBE_PE_OUTPUT, ®); if (status) return status; reg |= IXGBE_PE_BIT1; status = ixgbe_write_pe(hw, IXGBE_PE_OUTPUT, reg); if (status) return status; /* Wait for the reset to complete. */ msleep(IXGBE_CS4227_RESET_DELAY); for (retry = 0; retry < IXGBE_CS4227_RETRIES; retry++) { status = ixgbe_read_cs4227(hw, IXGBE_CS4227_EFUSE_STATUS, &value); if (!status && value == IXGBE_CS4227_EEPROM_LOAD_OK) break; msleep(IXGBE_CS4227_CHECK_DELAY); } if (retry == IXGBE_CS4227_RETRIES) { hw_err(hw, "CS4227 reset did not complete\n"); return IXGBE_ERR_PHY; } status = ixgbe_read_cs4227(hw, IXGBE_CS4227_EEPROM_STATUS, &value); if (status || !(value & IXGBE_CS4227_EEPROM_LOAD_OK)) { hw_err(hw, "CS4227 EEPROM did not load successfully\n"); return IXGBE_ERR_PHY; } return 0; } /** * ixgbe_check_cs4227 - Check CS4227 and reset as needed * @hw: pointer to hardware structure */ static void ixgbe_check_cs4227(struct ixgbe_hw *hw) { u32 swfw_mask = hw->phy.phy_semaphore_mask; s32 status; u16 value; u8 retry; for (retry = 0; retry < IXGBE_CS4227_RETRIES; retry++) { status = hw->mac.ops.acquire_swfw_sync(hw, swfw_mask); if (status) { hw_err(hw, "semaphore failed with %d\n", status); msleep(IXGBE_CS4227_CHECK_DELAY); continue; } /* Get status of reset flow. */ status = ixgbe_read_cs4227(hw, IXGBE_CS4227_SCRATCH, &value); if (!status && value == IXGBE_CS4227_RESET_COMPLETE) goto out; if (status || value != IXGBE_CS4227_RESET_PENDING) break; /* Reset is pending. Wait and check again. */ hw->mac.ops.release_swfw_sync(hw, swfw_mask); msleep(IXGBE_CS4227_CHECK_DELAY); } /* If still pending, assume other instance failed. */ if (retry == IXGBE_CS4227_RETRIES) { status = hw->mac.ops.acquire_swfw_sync(hw, swfw_mask); if (status) { hw_err(hw, "semaphore failed with %d\n", status); return; } } /* Reset the CS4227. */ status = ixgbe_reset_cs4227(hw); if (status) { hw_err(hw, "CS4227 reset failed: %d", status); goto out; } /* Reset takes so long, temporarily release semaphore in case the * other driver instance is waiting for the reset indication. */ ixgbe_write_cs4227(hw, IXGBE_CS4227_SCRATCH, IXGBE_CS4227_RESET_PENDING); hw->mac.ops.release_swfw_sync(hw, swfw_mask); usleep_range(10000, 12000); status = hw->mac.ops.acquire_swfw_sync(hw, swfw_mask); if (status) { hw_err(hw, "semaphore failed with %d", status); return; } /* Record completion for next time. */ status = ixgbe_write_cs4227(hw, IXGBE_CS4227_SCRATCH, IXGBE_CS4227_RESET_COMPLETE); out: hw->mac.ops.release_swfw_sync(hw, swfw_mask); msleep(hw->eeprom.semaphore_delay); } /** ixgbe_identify_phy_x550em - Get PHY type based on device id * @hw: pointer to hardware structure * * Returns error code */ static s32 ixgbe_identify_phy_x550em(struct ixgbe_hw *hw) { switch (hw->device_id) { case IXGBE_DEV_ID_X550EM_A_SFP: if (hw->bus.lan_id) hw->phy.phy_semaphore_mask = IXGBE_GSSR_PHY1_SM; else hw->phy.phy_semaphore_mask = IXGBE_GSSR_PHY0_SM; return ixgbe_identify_module_generic(hw); case IXGBE_DEV_ID_X550EM_X_SFP: /* set up for CS4227 usage */ hw->phy.phy_semaphore_mask = IXGBE_GSSR_SHARED_I2C_SM; ixgbe_setup_mux_ctl(hw); ixgbe_check_cs4227(hw); /* Fallthrough */ case IXGBE_DEV_ID_X550EM_A_SFP_N: return ixgbe_identify_module_generic(hw); case IXGBE_DEV_ID_X550EM_X_KX4: hw->phy.type = ixgbe_phy_x550em_kx4; break; case IXGBE_DEV_ID_X550EM_X_KR: case IXGBE_DEV_ID_X550EM_A_KR: case IXGBE_DEV_ID_X550EM_A_KR_L: hw->phy.type = ixgbe_phy_x550em_kr; break; case IXGBE_DEV_ID_X550EM_A_10G_T: if (hw->bus.lan_id) hw->phy.phy_semaphore_mask = IXGBE_GSSR_PHY1_SM; else hw->phy.phy_semaphore_mask = IXGBE_GSSR_PHY0_SM; /* Fallthrough */ case IXGBE_DEV_ID_X550EM_X_1G_T: case IXGBE_DEV_ID_X550EM_X_10G_T: return ixgbe_identify_phy_generic(hw); default: break; } return 0; } static s32 ixgbe_read_phy_reg_x550em(struct ixgbe_hw *hw, u32 reg_addr, u32 device_type, u16 *phy_data) { return IXGBE_NOT_IMPLEMENTED; } static s32 ixgbe_write_phy_reg_x550em(struct ixgbe_hw *hw, u32 reg_addr, u32 device_type, u16 phy_data) { return IXGBE_NOT_IMPLEMENTED; } /** * ixgbe_read_i2c_combined_generic - Perform I2C read combined operation * @hw: pointer to the hardware structure * @addr: I2C bus address to read from * @reg: I2C device register to read from * @val: pointer to location to receive read value * * Returns an error code on error. **/ static s32 ixgbe_read_i2c_combined_generic(struct ixgbe_hw *hw, u8 addr, u16 reg, u16 *val) { return ixgbe_read_i2c_combined_generic_int(hw, addr, reg, val, true); } /** * ixgbe_read_i2c_combined_generic_unlocked - Do I2C read combined operation * @hw: pointer to the hardware structure * @addr: I2C bus address to read from * @reg: I2C device register to read from * @val: pointer to location to receive read value * * Returns an error code on error. **/ static s32 ixgbe_read_i2c_combined_generic_unlocked(struct ixgbe_hw *hw, u8 addr, u16 reg, u16 *val) { return ixgbe_read_i2c_combined_generic_int(hw, addr, reg, val, false); } /** * ixgbe_write_i2c_combined_generic - Perform I2C write combined operation * @hw: pointer to the hardware structure * @addr: I2C bus address to write to * @reg: I2C device register to write to * @val: value to write * * Returns an error code on error. **/ static s32 ixgbe_write_i2c_combined_generic(struct ixgbe_hw *hw, u8 addr, u16 reg, u16 val) { return ixgbe_write_i2c_combined_generic_int(hw, addr, reg, val, true); } /** * ixgbe_write_i2c_combined_generic_unlocked - Do I2C write combined operation * @hw: pointer to the hardware structure * @addr: I2C bus address to write to * @reg: I2C device register to write to * @val: value to write * * Returns an error code on error. **/ static s32 ixgbe_write_i2c_combined_generic_unlocked(struct ixgbe_hw *hw, u8 addr, u16 reg, u16 val) { return ixgbe_write_i2c_combined_generic_int(hw, addr, reg, val, false); } /** ixgbe_init_eeprom_params_X550 - Initialize EEPROM params * @hw: pointer to hardware structure * * Initializes the EEPROM parameters ixgbe_eeprom_info within the * ixgbe_hw struct in order to set up EEPROM access. **/ static s32 ixgbe_init_eeprom_params_X550(struct ixgbe_hw *hw) { struct ixgbe_eeprom_info *eeprom = &hw->eeprom; u32 eec; u16 eeprom_size; if (eeprom->type == ixgbe_eeprom_uninitialized) { eeprom->semaphore_delay = 10; eeprom->type = ixgbe_flash; eec = IXGBE_READ_REG(hw, IXGBE_EEC(hw)); eeprom_size = (u16)((eec & IXGBE_EEC_SIZE) >> IXGBE_EEC_SIZE_SHIFT); eeprom->word_size = BIT(eeprom_size + IXGBE_EEPROM_WORD_SIZE_SHIFT); hw_dbg(hw, "Eeprom params: type = %d, size = %d\n", eeprom->type, eeprom->word_size); } return 0; } /** * ixgbe_iosf_wait - Wait for IOSF command completion * @hw: pointer to hardware structure * @ctrl: pointer to location to receive final IOSF control value * * Return: failing status on timeout * * Note: ctrl can be NULL if the IOSF control register value is not needed */ static s32 ixgbe_iosf_wait(struct ixgbe_hw *hw, u32 *ctrl) { u32 i, command; /* Check every 10 usec to see if the address cycle completed. * The SB IOSF BUSY bit will clear when the operation is * complete. */ for (i = 0; i < IXGBE_MDIO_COMMAND_TIMEOUT; i++) { command = IXGBE_READ_REG(hw, IXGBE_SB_IOSF_INDIRECT_CTRL); if (!(command & IXGBE_SB_IOSF_CTRL_BUSY)) break; udelay(10); } if (ctrl) *ctrl = command; if (i == IXGBE_MDIO_COMMAND_TIMEOUT) { hw_dbg(hw, "IOSF wait timed out\n"); return IXGBE_ERR_PHY; } return 0; } /** ixgbe_read_iosf_sb_reg_x550 - Writes a value to specified register of the * IOSF device * @hw: pointer to hardware structure * @reg_addr: 32 bit PHY register to write * @device_type: 3 bit device type * @phy_data: Pointer to read data from the register **/ static s32 ixgbe_read_iosf_sb_reg_x550(struct ixgbe_hw *hw, u32 reg_addr, u32 device_type, u32 *data) { u32 gssr = IXGBE_GSSR_PHY1_SM | IXGBE_GSSR_PHY0_SM; u32 command, error; s32 ret; ret = hw->mac.ops.acquire_swfw_sync(hw, gssr); if (ret) return ret; ret = ixgbe_iosf_wait(hw, NULL); if (ret) goto out; command = ((reg_addr << IXGBE_SB_IOSF_CTRL_ADDR_SHIFT) | (device_type << IXGBE_SB_IOSF_CTRL_TARGET_SELECT_SHIFT)); /* Write IOSF control register */ IXGBE_WRITE_REG(hw, IXGBE_SB_IOSF_INDIRECT_CTRL, command); ret = ixgbe_iosf_wait(hw, &command); if ((command & IXGBE_SB_IOSF_CTRL_RESP_STAT_MASK) != 0) { error = (command & IXGBE_SB_IOSF_CTRL_CMPL_ERR_MASK) >> IXGBE_SB_IOSF_CTRL_CMPL_ERR_SHIFT; hw_dbg(hw, "Failed to read, error %x\n", error); return IXGBE_ERR_PHY; } if (!ret) *data = IXGBE_READ_REG(hw, IXGBE_SB_IOSF_INDIRECT_DATA); out: hw->mac.ops.release_swfw_sync(hw, gssr); return ret; } /** * ixgbe_get_phy_token - Get the token for shared PHY access * @hw: Pointer to hardware structure */ static s32 ixgbe_get_phy_token(struct ixgbe_hw *hw) { struct ixgbe_hic_phy_token_req token_cmd; s32 status; token_cmd.hdr.cmd = FW_PHY_TOKEN_REQ_CMD; token_cmd.hdr.buf_len = FW_PHY_TOKEN_REQ_LEN; token_cmd.hdr.cmd_or_resp.cmd_resv = 0; token_cmd.hdr.checksum = FW_DEFAULT_CHECKSUM; token_cmd.port_number = hw->bus.lan_id; token_cmd.command_type = FW_PHY_TOKEN_REQ; token_cmd.pad = 0; status = ixgbe_host_interface_command(hw, &token_cmd, sizeof(token_cmd), IXGBE_HI_COMMAND_TIMEOUT, true); if (status) return status; if (token_cmd.hdr.cmd_or_resp.ret_status == FW_PHY_TOKEN_OK) return 0; if (token_cmd.hdr.cmd_or_resp.ret_status != FW_PHY_TOKEN_RETRY) return IXGBE_ERR_FW_RESP_INVALID; return IXGBE_ERR_TOKEN_RETRY; } /** * ixgbe_put_phy_token - Put the token for shared PHY access * @hw: Pointer to hardware structure */ static s32 ixgbe_put_phy_token(struct ixgbe_hw *hw) { struct ixgbe_hic_phy_token_req token_cmd; s32 status; token_cmd.hdr.cmd = FW_PHY_TOKEN_REQ_CMD; token_cmd.hdr.buf_len = FW_PHY_TOKEN_REQ_LEN; token_cmd.hdr.cmd_or_resp.cmd_resv = 0; token_cmd.hdr.checksum = FW_DEFAULT_CHECKSUM; token_cmd.port_number = hw->bus.lan_id; token_cmd.command_type = FW_PHY_TOKEN_REL; token_cmd.pad = 0; status = ixgbe_host_interface_command(hw, &token_cmd, sizeof(token_cmd), IXGBE_HI_COMMAND_TIMEOUT, true); if (status) return status; if (token_cmd.hdr.cmd_or_resp.ret_status == FW_PHY_TOKEN_OK) return 0; return IXGBE_ERR_FW_RESP_INVALID; } /** * ixgbe_write_iosf_sb_reg_x550a - Write to IOSF PHY register * @hw: pointer to hardware structure * @reg_addr: 32 bit PHY register to write * @device_type: 3 bit device type * @data: Data to write to the register **/ static s32 ixgbe_write_iosf_sb_reg_x550a(struct ixgbe_hw *hw, u32 reg_addr, __always_unused u32 device_type, u32 data) { struct ixgbe_hic_internal_phy_req write_cmd; memset(&write_cmd, 0, sizeof(write_cmd)); write_cmd.hdr.cmd = FW_INT_PHY_REQ_CMD; write_cmd.hdr.buf_len = FW_INT_PHY_REQ_LEN; write_cmd.hdr.checksum = FW_DEFAULT_CHECKSUM; write_cmd.port_number = hw->bus.lan_id; write_cmd.command_type = FW_INT_PHY_REQ_WRITE; write_cmd.address = cpu_to_be16(reg_addr); write_cmd.write_data = cpu_to_be32(data); return ixgbe_host_interface_command(hw, &write_cmd, sizeof(write_cmd), IXGBE_HI_COMMAND_TIMEOUT, false); } /** * ixgbe_read_iosf_sb_reg_x550a - Read from IOSF PHY register * @hw: pointer to hardware structure * @reg_addr: 32 bit PHY register to write * @device_type: 3 bit device type * @data: Pointer to read data from the register **/ static s32 ixgbe_read_iosf_sb_reg_x550a(struct ixgbe_hw *hw, u32 reg_addr, __always_unused u32 device_type, u32 *data) { union { struct ixgbe_hic_internal_phy_req cmd; struct ixgbe_hic_internal_phy_resp rsp; } hic; s32 status; memset(&hic, 0, sizeof(hic)); hic.cmd.hdr.cmd = FW_INT_PHY_REQ_CMD; hic.cmd.hdr.buf_len = FW_INT_PHY_REQ_LEN; hic.cmd.hdr.checksum = FW_DEFAULT_CHECKSUM; hic.cmd.port_number = hw->bus.lan_id; hic.cmd.command_type = FW_INT_PHY_REQ_READ; hic.cmd.address = cpu_to_be16(reg_addr); status = ixgbe_host_interface_command(hw, &hic.cmd, sizeof(hic.cmd), IXGBE_HI_COMMAND_TIMEOUT, true); /* Extract the register value from the response. */ *data = be32_to_cpu(hic.rsp.read_data); return status; } /** ixgbe_read_ee_hostif_data_X550 - Read EEPROM word using a host interface * command assuming that the semaphore is already obtained. * @hw: pointer to hardware structure * @offset: offset of word in the EEPROM to read * @data: word read from the EEPROM * * Reads a 16 bit word from the EEPROM using the hostif. **/ static s32 ixgbe_read_ee_hostif_data_X550(struct ixgbe_hw *hw, u16 offset, u16 *data) { s32 status; struct ixgbe_hic_read_shadow_ram buffer; buffer.hdr.req.cmd = FW_READ_SHADOW_RAM_CMD; buffer.hdr.req.buf_lenh = 0; buffer.hdr.req.buf_lenl = FW_READ_SHADOW_RAM_LEN; buffer.hdr.req.checksum = FW_DEFAULT_CHECKSUM; /* convert offset from words to bytes */ buffer.address = cpu_to_be32(offset * 2); /* one word */ buffer.length = cpu_to_be16(sizeof(u16)); status = ixgbe_host_interface_command(hw, &buffer, sizeof(buffer), IXGBE_HI_COMMAND_TIMEOUT, false); if (status) return status; *data = (u16)IXGBE_READ_REG_ARRAY(hw, IXGBE_FLEX_MNG, FW_NVM_DATA_OFFSET); return 0; } /** ixgbe_read_ee_hostif_buffer_X550- Read EEPROM word(s) using hostif * @hw: pointer to hardware structure * @offset: offset of word in the EEPROM to read * @words: number of words * @data: word(s) read from the EEPROM * * Reads a 16 bit word(s) from the EEPROM using the hostif. **/ static s32 ixgbe_read_ee_hostif_buffer_X550(struct ixgbe_hw *hw, u16 offset, u16 words, u16 *data) { struct ixgbe_hic_read_shadow_ram buffer; u32 current_word = 0; u16 words_to_read; s32 status; u32 i; /* Take semaphore for the entire operation. */ status = hw->mac.ops.acquire_swfw_sync(hw, IXGBE_GSSR_EEP_SM); if (status) { hw_dbg(hw, "EEPROM read buffer - semaphore failed\n"); return status; } while (words) { if (words > FW_MAX_READ_BUFFER_SIZE / 2) words_to_read = FW_MAX_READ_BUFFER_SIZE / 2; else words_to_read = words; buffer.hdr.req.cmd = FW_READ_SHADOW_RAM_CMD; buffer.hdr.req.buf_lenh = 0; buffer.hdr.req.buf_lenl = FW_READ_SHADOW_RAM_LEN; buffer.hdr.req.checksum = FW_DEFAULT_CHECKSUM; /* convert offset from words to bytes */ buffer.address = cpu_to_be32((offset + current_word) * 2); buffer.length = cpu_to_be16(words_to_read * 2); status = ixgbe_host_interface_command(hw, &buffer, sizeof(buffer), IXGBE_HI_COMMAND_TIMEOUT, false); if (status) { hw_dbg(hw, "Host interface command failed\n"); goto out; } for (i = 0; i < words_to_read; i++) { u32 reg = IXGBE_FLEX_MNG + (FW_NVM_DATA_OFFSET << 2) + 2 * i; u32 value = IXGBE_READ_REG(hw, reg); data[current_word] = (u16)(value & 0xffff); current_word++; i++; if (i < words_to_read) { value >>= 16; data[current_word] = (u16)(value & 0xffff); current_word++; } } words -= words_to_read; } out: hw->mac.ops.release_swfw_sync(hw, IXGBE_GSSR_EEP_SM); return status; } /** ixgbe_checksum_ptr_x550 - Checksum one pointer region * @hw: pointer to hardware structure * @ptr: pointer offset in eeprom * @size: size of section pointed by ptr, if 0 first word will be used as size * @csum: address of checksum to update * * Returns error status for any failure **/ static s32 ixgbe_checksum_ptr_x550(struct ixgbe_hw *hw, u16 ptr, u16 size, u16 *csum, u16 *buffer, u32 buffer_size) { u16 buf[256]; s32 status; u16 length, bufsz, i, start; u16 *local_buffer; bufsz = sizeof(buf) / sizeof(buf[0]); /* Read a chunk at the pointer location */ if (!buffer) { status = ixgbe_read_ee_hostif_buffer_X550(hw, ptr, bufsz, buf); if (status) { hw_dbg(hw, "Failed to read EEPROM image\n"); return status; } local_buffer = buf; } else { if (buffer_size < ptr) return IXGBE_ERR_PARAM; local_buffer = &buffer[ptr]; } if (size) { start = 0; length = size; } else { start = 1; length = local_buffer[0]; /* Skip pointer section if length is invalid. */ if (length == 0xFFFF || length == 0 || (ptr + length) >= hw->eeprom.word_size) return 0; } if (buffer && ((u32)start + (u32)length > buffer_size)) return IXGBE_ERR_PARAM; for (i = start; length; i++, length--) { if (i == bufsz && !buffer) { ptr += bufsz; i = 0; if (length < bufsz) bufsz = length; /* Read a chunk at the pointer location */ status = ixgbe_read_ee_hostif_buffer_X550(hw, ptr, bufsz, buf); if (status) { hw_dbg(hw, "Failed to read EEPROM image\n"); return status; } } *csum += local_buffer[i]; } return 0; } /** ixgbe_calc_checksum_X550 - Calculates and returns the checksum * @hw: pointer to hardware structure * @buffer: pointer to buffer containing calculated checksum * @buffer_size: size of buffer * * Returns a negative error code on error, or the 16-bit checksum **/ static s32 ixgbe_calc_checksum_X550(struct ixgbe_hw *hw, u16 *buffer, u32 buffer_size) { u16 eeprom_ptrs[IXGBE_EEPROM_LAST_WORD + 1]; u16 *local_buffer; s32 status; u16 checksum = 0; u16 pointer, i, size; hw->eeprom.ops.init_params(hw); if (!buffer) { /* Read pointer area */ status = ixgbe_read_ee_hostif_buffer_X550(hw, 0, IXGBE_EEPROM_LAST_WORD + 1, eeprom_ptrs); if (status) { hw_dbg(hw, "Failed to read EEPROM image\n"); return status; } local_buffer = eeprom_ptrs; } else { if (buffer_size < IXGBE_EEPROM_LAST_WORD) return IXGBE_ERR_PARAM; local_buffer = buffer; } /* For X550 hardware include 0x0-0x41 in the checksum, skip the * checksum word itself */ for (i = 0; i <= IXGBE_EEPROM_LAST_WORD; i++) if (i != IXGBE_EEPROM_CHECKSUM) checksum += local_buffer[i]; /* Include all data from pointers 0x3, 0x6-0xE. This excludes the * FW, PHY module, and PCIe Expansion/Option ROM pointers. */ for (i = IXGBE_PCIE_ANALOG_PTR_X550; i < IXGBE_FW_PTR; i++) { if (i == IXGBE_PHY_PTR || i == IXGBE_OPTION_ROM_PTR) continue; pointer = local_buffer[i]; /* Skip pointer section if the pointer is invalid. */ if (pointer == 0xFFFF || pointer == 0 || pointer >= hw->eeprom.word_size) continue; switch (i) { case IXGBE_PCIE_GENERAL_PTR: size = IXGBE_IXGBE_PCIE_GENERAL_SIZE; break; case IXGBE_PCIE_CONFIG0_PTR: case IXGBE_PCIE_CONFIG1_PTR: size = IXGBE_PCIE_CONFIG_SIZE; break; default: size = 0; break; } status = ixgbe_checksum_ptr_x550(hw, pointer, size, &checksum, buffer, buffer_size); if (status) return status; } checksum = (u16)IXGBE_EEPROM_SUM - checksum; return (s32)checksum; } /** ixgbe_calc_eeprom_checksum_X550 - Calculates and returns the checksum * @hw: pointer to hardware structure * * Returns a negative error code on error, or the 16-bit checksum **/ static s32 ixgbe_calc_eeprom_checksum_X550(struct ixgbe_hw *hw) { return ixgbe_calc_checksum_X550(hw, NULL, 0); } /** ixgbe_read_ee_hostif_X550 - Read EEPROM word using a host interface command * @hw: pointer to hardware structure * @offset: offset of word in the EEPROM to read * @data: word read from the EEPROM * * Reads a 16 bit word from the EEPROM using the hostif. **/ static s32 ixgbe_read_ee_hostif_X550(struct ixgbe_hw *hw, u16 offset, u16 *data) { s32 status = 0; if (hw->mac.ops.acquire_swfw_sync(hw, IXGBE_GSSR_EEP_SM) == 0) { status = ixgbe_read_ee_hostif_data_X550(hw, offset, data); hw->mac.ops.release_swfw_sync(hw, IXGBE_GSSR_EEP_SM); } else { status = IXGBE_ERR_SWFW_SYNC; } return status; } /** ixgbe_validate_eeprom_checksum_X550 - Validate EEPROM checksum * @hw: pointer to hardware structure * @checksum_val: calculated checksum * * Performs checksum calculation and validates the EEPROM checksum. If the * caller does not need checksum_val, the value can be NULL. **/ static s32 ixgbe_validate_eeprom_checksum_X550(struct ixgbe_hw *hw, u16 *checksum_val) { s32 status; u16 checksum; u16 read_checksum = 0; /* Read the first word from the EEPROM. If this times out or fails, do * not continue or we could be in for a very long wait while every * EEPROM read fails */ status = hw->eeprom.ops.read(hw, 0, &checksum); if (status) { hw_dbg(hw, "EEPROM read failed\n"); return status; } status = hw->eeprom.ops.calc_checksum(hw); if (status < 0) return status; checksum = (u16)(status & 0xffff); status = ixgbe_read_ee_hostif_X550(hw, IXGBE_EEPROM_CHECKSUM, &read_checksum); if (status) return status; /* Verify read checksum from EEPROM is the same as * calculated checksum */ if (read_checksum != checksum) { status = IXGBE_ERR_EEPROM_CHECKSUM; hw_dbg(hw, "Invalid EEPROM checksum"); } /* If the user cares, return the calculated checksum */ if (checksum_val) *checksum_val = checksum; return status; } /** ixgbe_write_ee_hostif_X550 - Write EEPROM word using hostif * @hw: pointer to hardware structure * @offset: offset of word in the EEPROM to write * @data: word write to the EEPROM * * Write a 16 bit word to the EEPROM using the hostif. **/ static s32 ixgbe_write_ee_hostif_data_X550(struct ixgbe_hw *hw, u16 offset, u16 data) { s32 status; struct ixgbe_hic_write_shadow_ram buffer; buffer.hdr.req.cmd = FW_WRITE_SHADOW_RAM_CMD; buffer.hdr.req.buf_lenh = 0; buffer.hdr.req.buf_lenl = FW_WRITE_SHADOW_RAM_LEN; buffer.hdr.req.checksum = FW_DEFAULT_CHECKSUM; /* one word */ buffer.length = cpu_to_be16(sizeof(u16)); buffer.data = data; buffer.address = cpu_to_be32(offset * 2); status = ixgbe_host_interface_command(hw, &buffer, sizeof(buffer), IXGBE_HI_COMMAND_TIMEOUT, false); return status; } /** ixgbe_write_ee_hostif_X550 - Write EEPROM word using hostif * @hw: pointer to hardware structure * @offset: offset of word in the EEPROM to write * @data: word write to the EEPROM * * Write a 16 bit word to the EEPROM using the hostif. **/ static s32 ixgbe_write_ee_hostif_X550(struct ixgbe_hw *hw, u16 offset, u16 data) { s32 status = 0; if (hw->mac.ops.acquire_swfw_sync(hw, IXGBE_GSSR_EEP_SM) == 0) { status = ixgbe_write_ee_hostif_data_X550(hw, offset, data); hw->mac.ops.release_swfw_sync(hw, IXGBE_GSSR_EEP_SM); } else { hw_dbg(hw, "write ee hostif failed to get semaphore"); status = IXGBE_ERR_SWFW_SYNC; } return status; } /** ixgbe_update_flash_X550 - Instruct HW to copy EEPROM to Flash device * @hw: pointer to hardware structure * * Issue a shadow RAM dump to FW to copy EEPROM from shadow RAM to the flash. **/ static s32 ixgbe_update_flash_X550(struct ixgbe_hw *hw) { s32 status = 0; union ixgbe_hic_hdr2 buffer; buffer.req.cmd = FW_SHADOW_RAM_DUMP_CMD; buffer.req.buf_lenh = 0; buffer.req.buf_lenl = FW_SHADOW_RAM_DUMP_LEN; buffer.req.checksum = FW_DEFAULT_CHECKSUM; status = ixgbe_host_interface_command(hw, &buffer, sizeof(buffer), IXGBE_HI_COMMAND_TIMEOUT, false); return status; } /** * ixgbe_get_bus_info_X550em - Set PCI bus info * @hw: pointer to hardware structure * * Sets bus link width and speed to unknown because X550em is * not a PCI device. **/ static s32 ixgbe_get_bus_info_X550em(struct ixgbe_hw *hw) { hw->bus.type = ixgbe_bus_type_internal; hw->bus.width = ixgbe_bus_width_unknown; hw->bus.speed = ixgbe_bus_speed_unknown; hw->mac.ops.set_lan_id(hw); return 0; } /** ixgbe_disable_rx_x550 - Disable RX unit * * Enables the Rx DMA unit for x550 **/ static void ixgbe_disable_rx_x550(struct ixgbe_hw *hw) { u32 rxctrl, pfdtxgswc; s32 status; struct ixgbe_hic_disable_rxen fw_cmd; rxctrl = IXGBE_READ_REG(hw, IXGBE_RXCTRL); if (rxctrl & IXGBE_RXCTRL_RXEN) { pfdtxgswc = IXGBE_READ_REG(hw, IXGBE_PFDTXGSWC); if (pfdtxgswc & IXGBE_PFDTXGSWC_VT_LBEN) { pfdtxgswc &= ~IXGBE_PFDTXGSWC_VT_LBEN; IXGBE_WRITE_REG(hw, IXGBE_PFDTXGSWC, pfdtxgswc); hw->mac.set_lben = true; } else { hw->mac.set_lben = false; } fw_cmd.hdr.cmd = FW_DISABLE_RXEN_CMD; fw_cmd.hdr.buf_len = FW_DISABLE_RXEN_LEN; fw_cmd.hdr.checksum = FW_DEFAULT_CHECKSUM; fw_cmd.port_number = hw->bus.lan_id; status = ixgbe_host_interface_command(hw, &fw_cmd, sizeof(struct ixgbe_hic_disable_rxen), IXGBE_HI_COMMAND_TIMEOUT, true); /* If we fail - disable RX using register write */ if (status) { rxctrl = IXGBE_READ_REG(hw, IXGBE_RXCTRL); if (rxctrl & IXGBE_RXCTRL_RXEN) { rxctrl &= ~IXGBE_RXCTRL_RXEN; IXGBE_WRITE_REG(hw, IXGBE_RXCTRL, rxctrl); } } } } /** ixgbe_update_eeprom_checksum_X550 - Updates the EEPROM checksum and flash * @hw: pointer to hardware structure * * After writing EEPROM to shadow RAM using EEWR register, software calculates * checksum and updates the EEPROM and instructs the hardware to update * the flash. **/ static s32 ixgbe_update_eeprom_checksum_X550(struct ixgbe_hw *hw) { s32 status; u16 checksum = 0; /* Read the first word from the EEPROM. If this times out or fails, do * not continue or we could be in for a very long wait while every * EEPROM read fails */ status = ixgbe_read_ee_hostif_X550(hw, 0, &checksum); if (status) { hw_dbg(hw, "EEPROM read failed\n"); return status; } status = ixgbe_calc_eeprom_checksum_X550(hw); if (status < 0) return status; checksum = (u16)(status & 0xffff); status = ixgbe_write_ee_hostif_X550(hw, IXGBE_EEPROM_CHECKSUM, checksum); if (status) return status; status = ixgbe_update_flash_X550(hw); return status; } /** ixgbe_write_ee_hostif_buffer_X550 - Write EEPROM word(s) using hostif * @hw: pointer to hardware structure * @offset: offset of word in the EEPROM to write * @words: number of words * @data: word(s) write to the EEPROM * * * Write a 16 bit word(s) to the EEPROM using the hostif. **/ static s32 ixgbe_write_ee_hostif_buffer_X550(struct ixgbe_hw *hw, u16 offset, u16 words, u16 *data) { s32 status = 0; u32 i = 0; /* Take semaphore for the entire operation. */ status = hw->mac.ops.acquire_swfw_sync(hw, IXGBE_GSSR_EEP_SM); if (status) { hw_dbg(hw, "EEPROM write buffer - semaphore failed\n"); return status; } for (i = 0; i < words; i++) { status = ixgbe_write_ee_hostif_data_X550(hw, offset + i, data[i]); if (status) { hw_dbg(hw, "Eeprom buffered write failed\n"); break; } } hw->mac.ops.release_swfw_sync(hw, IXGBE_GSSR_EEP_SM); return status; } /** ixgbe_write_iosf_sb_reg_x550 - Writes a value to specified register of the * IOSF device * * @hw: pointer to hardware structure * @reg_addr: 32 bit PHY register to write * @device_type: 3 bit device type * @data: Data to write to the register **/ static s32 ixgbe_write_iosf_sb_reg_x550(struct ixgbe_hw *hw, u32 reg_addr, u32 device_type, u32 data) { u32 gssr = IXGBE_GSSR_PHY1_SM | IXGBE_GSSR_PHY0_SM; u32 command, error; s32 ret; ret = hw->mac.ops.acquire_swfw_sync(hw, gssr); if (ret) return ret; ret = ixgbe_iosf_wait(hw, NULL); if (ret) goto out; command = ((reg_addr << IXGBE_SB_IOSF_CTRL_ADDR_SHIFT) | (device_type << IXGBE_SB_IOSF_CTRL_TARGET_SELECT_SHIFT)); /* Write IOSF control register */ IXGBE_WRITE_REG(hw, IXGBE_SB_IOSF_INDIRECT_CTRL, command); /* Write IOSF data register */ IXGBE_WRITE_REG(hw, IXGBE_SB_IOSF_INDIRECT_DATA, data); ret = ixgbe_iosf_wait(hw, &command); if ((command & IXGBE_SB_IOSF_CTRL_RESP_STAT_MASK) != 0) { error = (command & IXGBE_SB_IOSF_CTRL_CMPL_ERR_MASK) >> IXGBE_SB_IOSF_CTRL_CMPL_ERR_SHIFT; hw_dbg(hw, "Failed to write, error %x\n", error); return IXGBE_ERR_PHY; } out: hw->mac.ops.release_swfw_sync(hw, gssr); return ret; } /** * ixgbe_setup_ixfi_x550em_x - MAC specific iXFI configuration * @hw: pointer to hardware structure * * iXfI configuration needed for ixgbe_mac_X550EM_x devices. **/ static s32 ixgbe_setup_ixfi_x550em_x(struct ixgbe_hw *hw) { s32 status; u32 reg_val; /* Disable training protocol FSM. */ status = ixgbe_read_iosf_sb_reg_x550(hw, IXGBE_KRM_RX_TRN_LINKUP_CTRL(hw->bus.lan_id), IXGBE_SB_IOSF_TARGET_KR_PHY, ®_val); if (status) return status; reg_val |= IXGBE_KRM_RX_TRN_LINKUP_CTRL_CONV_WO_PROTOCOL; status = ixgbe_write_iosf_sb_reg_x550(hw, IXGBE_KRM_RX_TRN_LINKUP_CTRL(hw->bus.lan_id), IXGBE_SB_IOSF_TARGET_KR_PHY, reg_val); if (status) return status; /* Disable Flex from training TXFFE. */ status = ixgbe_read_iosf_sb_reg_x550(hw, IXGBE_KRM_DSP_TXFFE_STATE_4(hw->bus.lan_id), IXGBE_SB_IOSF_TARGET_KR_PHY, ®_val); if (status) return status; reg_val &= ~IXGBE_KRM_DSP_TXFFE_STATE_C0_EN; reg_val &= ~IXGBE_KRM_DSP_TXFFE_STATE_CP1_CN1_EN; reg_val &= ~IXGBE_KRM_DSP_TXFFE_STATE_CO_ADAPT_EN; status = ixgbe_write_iosf_sb_reg_x550(hw, IXGBE_KRM_DSP_TXFFE_STATE_4(hw->bus.lan_id), IXGBE_SB_IOSF_TARGET_KR_PHY, reg_val); if (status) return status; status = ixgbe_read_iosf_sb_reg_x550(hw, IXGBE_KRM_DSP_TXFFE_STATE_5(hw->bus.lan_id), IXGBE_SB_IOSF_TARGET_KR_PHY, ®_val); if (status) return status; reg_val &= ~IXGBE_KRM_DSP_TXFFE_STATE_C0_EN; reg_val &= ~IXGBE_KRM_DSP_TXFFE_STATE_CP1_CN1_EN; reg_val &= ~IXGBE_KRM_DSP_TXFFE_STATE_CO_ADAPT_EN; status = ixgbe_write_iosf_sb_reg_x550(hw, IXGBE_KRM_DSP_TXFFE_STATE_5(hw->bus.lan_id), IXGBE_SB_IOSF_TARGET_KR_PHY, reg_val); if (status) return status; /* Enable override for coefficients. */ status = ixgbe_read_iosf_sb_reg_x550(hw, IXGBE_KRM_TX_COEFF_CTRL_1(hw->bus.lan_id), IXGBE_SB_IOSF_TARGET_KR_PHY, ®_val); if (status) return status; reg_val |= IXGBE_KRM_TX_COEFF_CTRL_1_OVRRD_EN; reg_val |= IXGBE_KRM_TX_COEFF_CTRL_1_CZERO_EN; reg_val |= IXGBE_KRM_TX_COEFF_CTRL_1_CPLUS1_OVRRD_EN; reg_val |= IXGBE_KRM_TX_COEFF_CTRL_1_CMINUS1_OVRRD_EN; status = ixgbe_write_iosf_sb_reg_x550(hw, IXGBE_KRM_TX_COEFF_CTRL_1(hw->bus.lan_id), IXGBE_SB_IOSF_TARGET_KR_PHY, reg_val); return status; } /** * ixgbe_restart_an_internal_phy_x550em - restart autonegotiation for the * internal PHY * @hw: pointer to hardware structure **/ static s32 ixgbe_restart_an_internal_phy_x550em(struct ixgbe_hw *hw) { s32 status; u32 link_ctrl; /* Restart auto-negotiation. */ status = hw->mac.ops.read_iosf_sb_reg(hw, IXGBE_KRM_LINK_CTRL_1(hw->bus.lan_id), IXGBE_SB_IOSF_TARGET_KR_PHY, &link_ctrl); if (status) { hw_dbg(hw, "Auto-negotiation did not complete\n"); return status; } link_ctrl |= IXGBE_KRM_LINK_CTRL_1_TETH_AN_RESTART; status = hw->mac.ops.write_iosf_sb_reg(hw, IXGBE_KRM_LINK_CTRL_1(hw->bus.lan_id), IXGBE_SB_IOSF_TARGET_KR_PHY, link_ctrl); if (hw->mac.type == ixgbe_mac_x550em_a) { u32 flx_mask_st20; /* Indicate to FW that AN restart has been asserted */ status = hw->mac.ops.read_iosf_sb_reg(hw, IXGBE_KRM_PMD_FLX_MASK_ST20(hw->bus.lan_id), IXGBE_SB_IOSF_TARGET_KR_PHY, &flx_mask_st20); if (status) { hw_dbg(hw, "Auto-negotiation did not complete\n"); return status; } flx_mask_st20 |= IXGBE_KRM_PMD_FLX_MASK_ST20_FW_AN_RESTART; status = hw->mac.ops.write_iosf_sb_reg(hw, IXGBE_KRM_PMD_FLX_MASK_ST20(hw->bus.lan_id), IXGBE_SB_IOSF_TARGET_KR_PHY, flx_mask_st20); } return status; } /** ixgbe_setup_ixfi_x550em - Configure the KR PHY for iXFI mode. * @hw: pointer to hardware structure * @speed: the link speed to force * * Configures the integrated KR PHY to use iXFI mode. Used to connect an * internal and external PHY at a specific speed, without autonegotiation. **/ static s32 ixgbe_setup_ixfi_x550em(struct ixgbe_hw *hw, ixgbe_link_speed *speed) { s32 status; u32 reg_val; /* Disable AN and force speed to 10G Serial. */ status = ixgbe_read_iosf_sb_reg_x550(hw, IXGBE_KRM_LINK_CTRL_1(hw->bus.lan_id), IXGBE_SB_IOSF_TARGET_KR_PHY, ®_val); if (status) return status; reg_val &= ~IXGBE_KRM_LINK_CTRL_1_TETH_AN_ENABLE; reg_val &= ~IXGBE_KRM_LINK_CTRL_1_TETH_FORCE_SPEED_MASK; /* Select forced link speed for internal PHY. */ switch (*speed) { case IXGBE_LINK_SPEED_10GB_FULL: reg_val |= IXGBE_KRM_LINK_CTRL_1_TETH_FORCE_SPEED_10G; break; case IXGBE_LINK_SPEED_1GB_FULL: reg_val |= IXGBE_KRM_LINK_CTRL_1_TETH_FORCE_SPEED_1G; break; default: /* Other link speeds are not supported by internal KR PHY. */ return IXGBE_ERR_LINK_SETUP; } status = ixgbe_write_iosf_sb_reg_x550(hw, IXGBE_KRM_LINK_CTRL_1(hw->bus.lan_id), IXGBE_SB_IOSF_TARGET_KR_PHY, reg_val); if (status) return status; /* Additional configuration needed for x550em_x */ if (hw->mac.type == ixgbe_mac_X550EM_x) { status = ixgbe_setup_ixfi_x550em_x(hw); if (status) return status; } /* Toggle port SW reset by AN reset. */ status = ixgbe_restart_an_internal_phy_x550em(hw); return status; } /** * ixgbe_supported_sfp_modules_X550em - Check if SFP module type is supported * @hw: pointer to hardware structure * @linear: true if SFP module is linear */ static s32 ixgbe_supported_sfp_modules_X550em(struct ixgbe_hw *hw, bool *linear) { switch (hw->phy.sfp_type) { case ixgbe_sfp_type_not_present: return IXGBE_ERR_SFP_NOT_PRESENT; case ixgbe_sfp_type_da_cu_core0: case ixgbe_sfp_type_da_cu_core1: *linear = true; break; case ixgbe_sfp_type_srlr_core0: case ixgbe_sfp_type_srlr_core1: case ixgbe_sfp_type_da_act_lmt_core0: case ixgbe_sfp_type_da_act_lmt_core1: case ixgbe_sfp_type_1g_sx_core0: case ixgbe_sfp_type_1g_sx_core1: case ixgbe_sfp_type_1g_lx_core0: case ixgbe_sfp_type_1g_lx_core1: *linear = false; break; case ixgbe_sfp_type_unknown: case ixgbe_sfp_type_1g_cu_core0: case ixgbe_sfp_type_1g_cu_core1: default: return IXGBE_ERR_SFP_NOT_SUPPORTED; } return 0; } /** * ixgbe_setup_mac_link_sfp_x550em - Configure the KR PHY for SFP. * @hw: pointer to hardware structure * * Configures the extern PHY and the integrated KR PHY for SFP support. */ static s32 ixgbe_setup_mac_link_sfp_x550em(struct ixgbe_hw *hw, ixgbe_link_speed speed, __always_unused bool autoneg_wait_to_complete) { s32 status; u16 reg_slice, reg_val; bool setup_linear = false; /* Check if SFP module is supported and linear */ status = ixgbe_supported_sfp_modules_X550em(hw, &setup_linear); /* If no SFP module present, then return success. Return success since * there is no reason to configure CS4227 and SFP not present error is * not accepted in the setup MAC link flow. */ if (status == IXGBE_ERR_SFP_NOT_PRESENT) return 0; if (status) return status; /* Configure internal PHY for KR/KX. */ ixgbe_setup_kr_speed_x550em(hw, speed); /* Configure CS4227 LINE side to proper mode. */ reg_slice = IXGBE_CS4227_LINE_SPARE24_LSB + (hw->bus.lan_id << 12); if (setup_linear) reg_val = (IXGBE_CS4227_EDC_MODE_CX1 << 1) | 0x1; else reg_val = (IXGBE_CS4227_EDC_MODE_SR << 1) | 0x1; status = hw->link.ops.write_link(hw, hw->link.addr, reg_slice, reg_val); return status; } /** * ixgbe_setup_sfi_x550a - Configure the internal PHY for native SFI mode * @hw: pointer to hardware structure * @speed: the link speed to force * * Configures the integrated PHY for native SFI mode. Used to connect the * internal PHY directly to an SFP cage, without autonegotiation. **/ static s32 ixgbe_setup_sfi_x550a(struct ixgbe_hw *hw, ixgbe_link_speed *speed) { struct ixgbe_mac_info *mac = &hw->mac; s32 status; u32 reg_val; /* Disable all AN and force speed to 10G Serial. */ status = mac->ops.read_iosf_sb_reg(hw, IXGBE_KRM_PMD_FLX_MASK_ST20(hw->bus.lan_id), IXGBE_SB_IOSF_TARGET_KR_PHY, ®_val); if (status) return status; reg_val &= ~IXGBE_KRM_PMD_FLX_MASK_ST20_AN_EN; reg_val &= ~IXGBE_KRM_PMD_FLX_MASK_ST20_AN37_EN; reg_val &= ~IXGBE_KRM_PMD_FLX_MASK_ST20_SGMII_EN; reg_val &= ~IXGBE_KRM_PMD_FLX_MASK_ST20_SPEED_MASK; /* Select forced link speed for internal PHY. */ switch (*speed) { case IXGBE_LINK_SPEED_10GB_FULL: reg_val |= IXGBE_KRM_PMD_FLX_MASK_ST20_SPEED_10G; break; case IXGBE_LINK_SPEED_1GB_FULL: reg_val |= IXGBE_KRM_PMD_FLX_MASK_ST20_SPEED_1G; break; default: /* Other link speeds are not supported by internal PHY. */ return IXGBE_ERR_LINK_SETUP; } status = mac->ops.write_iosf_sb_reg(hw, IXGBE_KRM_PMD_FLX_MASK_ST20(hw->bus.lan_id), IXGBE_SB_IOSF_TARGET_KR_PHY, reg_val); /* Toggle port SW reset by AN reset. */ status = ixgbe_restart_an_internal_phy_x550em(hw); return status; } /** * ixgbe_setup_mac_link_sfp_n - Setup internal PHY for native SFP * @hw: pointer to hardware structure * * Configure the the integrated PHY for native SFP support. */ static s32 ixgbe_setup_mac_link_sfp_n(struct ixgbe_hw *hw, ixgbe_link_speed speed, __always_unused bool autoneg_wait_to_complete) { bool setup_linear = false; u32 reg_phy_int; s32 ret_val; /* Check if SFP module is supported and linear */ ret_val = ixgbe_supported_sfp_modules_X550em(hw, &setup_linear); /* If no SFP module present, then return success. Return success since * SFP not present error is not excepted in the setup MAC link flow. */ if (ret_val == IXGBE_ERR_SFP_NOT_PRESENT) return 0; if (!ret_val) return ret_val; /* Configure internal PHY for native SFI based on module type */ ret_val = hw->mac.ops.read_iosf_sb_reg(hw, IXGBE_KRM_PMD_FLX_MASK_ST20(hw->bus.lan_id), IXGBE_SB_IOSF_TARGET_KR_PHY, ®_phy_int); if (!ret_val) return ret_val; reg_phy_int &= IXGBE_KRM_PMD_FLX_MASK_ST20_SFI_10G_DA; if (!setup_linear) reg_phy_int |= IXGBE_KRM_PMD_FLX_MASK_ST20_SFI_10G_SR; ret_val = hw->mac.ops.write_iosf_sb_reg(hw, IXGBE_KRM_PMD_FLX_MASK_ST20(hw->bus.lan_id), IXGBE_SB_IOSF_TARGET_KR_PHY, reg_phy_int); if (!ret_val) return ret_val; /* Setup SFI internal link. */ return ixgbe_setup_sfi_x550a(hw, &speed); } /** * ixgbe_setup_mac_link_sfp_x550a - Setup internal PHY for SFP * @hw: pointer to hardware structure * * Configure the the integrated PHY for SFP support. */ static s32 ixgbe_setup_mac_link_sfp_x550a(struct ixgbe_hw *hw, ixgbe_link_speed speed, __always_unused bool autoneg_wait_to_complete) { u32 reg_slice, slice_offset; bool setup_linear = false; u16 reg_phy_ext; s32 ret_val; /* Check if SFP module is supported and linear */ ret_val = ixgbe_supported_sfp_modules_X550em(hw, &setup_linear); /* If no SFP module present, then return success. Return success since * SFP not present error is not excepted in the setup MAC link flow. */ if (ret_val == IXGBE_ERR_SFP_NOT_PRESENT) return 0; if (!ret_val) return ret_val; /* Configure internal PHY for KR/KX. */ ixgbe_setup_kr_speed_x550em(hw, speed); if (hw->phy.mdio.prtad == MDIO_PRTAD_NONE) return IXGBE_ERR_PHY_ADDR_INVALID; /* Get external PHY device id */ ret_val = hw->phy.ops.read_reg(hw, IXGBE_CS4227_GLOBAL_ID_MSB, IXGBE_MDIO_ZERO_DEV_TYPE, ®_phy_ext); if (ret_val) return ret_val; /* When configuring quad port CS4223, the MAC instance is part * of the slice offset. */ if (reg_phy_ext == IXGBE_CS4223_PHY_ID) slice_offset = (hw->bus.lan_id + (hw->bus.instance_id << 1)) << 12; else slice_offset = hw->bus.lan_id << 12; /* Configure CS4227/CS4223 LINE side to proper mode. */ reg_slice = IXGBE_CS4227_LINE_SPARE24_LSB + slice_offset; if (setup_linear) reg_phy_ext = (IXGBE_CS4227_EDC_MODE_CX1 << 1) | 1; else reg_phy_ext = (IXGBE_CS4227_EDC_MODE_SR << 1) | 1; return hw->phy.ops.write_reg(hw, reg_slice, IXGBE_MDIO_ZERO_DEV_TYPE, reg_phy_ext); } /** * ixgbe_setup_mac_link_t_X550em - Sets the auto advertised link speed * @hw: pointer to hardware structure * @speed: new link speed * @autoneg_wait_to_complete: true when waiting for completion is needed * * Setup internal/external PHY link speed based on link speed, then set * external PHY auto advertised link speed. * * Returns error status for any failure **/ static s32 ixgbe_setup_mac_link_t_X550em(struct ixgbe_hw *hw, ixgbe_link_speed speed, bool autoneg_wait) { s32 status; ixgbe_link_speed force_speed; /* Setup internal/external PHY link speed to iXFI (10G), unless * only 1G is auto advertised then setup KX link. */ if (speed & IXGBE_LINK_SPEED_10GB_FULL) force_speed = IXGBE_LINK_SPEED_10GB_FULL; else force_speed = IXGBE_LINK_SPEED_1GB_FULL; /* If internal link mode is XFI, then setup XFI internal link. */ if (!(hw->phy.nw_mng_if_sel & IXGBE_NW_MNG_IF_SEL_INT_PHY_MODE)) { status = ixgbe_setup_ixfi_x550em(hw, &force_speed); if (status) return status; } return hw->phy.ops.setup_link_speed(hw, speed, autoneg_wait); } /** ixgbe_check_link_t_X550em - Determine link and speed status * @hw: pointer to hardware structure * @speed: pointer to link speed * @link_up: true when link is up * @link_up_wait_to_complete: bool used to wait for link up or not * * Check that both the MAC and X557 external PHY have link. **/ static s32 ixgbe_check_link_t_X550em(struct ixgbe_hw *hw, ixgbe_link_speed *speed, bool *link_up, bool link_up_wait_to_complete) { u32 status; u16 i, autoneg_status; if (hw->mac.ops.get_media_type(hw) != ixgbe_media_type_copper) return IXGBE_ERR_CONFIG; status = ixgbe_check_mac_link_generic(hw, speed, link_up, link_up_wait_to_complete); /* If check link fails or MAC link is not up, then return */ if (status || !(*link_up)) return status; /* MAC link is up, so check external PHY link. * Link status is latching low, and can only be used to detect link * drop, and not the current status of the link without performing * back-to-back reads. */ for (i = 0; i < 2; i++) { status = hw->phy.ops.read_reg(hw, MDIO_STAT1, MDIO_MMD_AN, &autoneg_status); if (status) return status; } /* If external PHY link is not up, then indicate link not up */ if (!(autoneg_status & IXGBE_MDIO_AUTO_NEG_LINK_STATUS)) *link_up = false; return 0; } /** * ixgbe_setup_sgmii - Set up link for sgmii * @hw: pointer to hardware structure */ static s32 ixgbe_setup_sgmii(struct ixgbe_hw *hw, __always_unused ixgbe_link_speed speed, __always_unused bool autoneg_wait_to_complete) { struct ixgbe_mac_info *mac = &hw->mac; u32 lval, sval, flx_val; s32 rc; rc = mac->ops.read_iosf_sb_reg(hw, IXGBE_KRM_LINK_CTRL_1(hw->bus.lan_id), IXGBE_SB_IOSF_TARGET_KR_PHY, &lval); if (rc) return rc; lval &= ~IXGBE_KRM_LINK_CTRL_1_TETH_AN_ENABLE; lval &= ~IXGBE_KRM_LINK_CTRL_1_TETH_FORCE_SPEED_MASK; lval |= IXGBE_KRM_LINK_CTRL_1_TETH_AN_SGMII_EN; lval |= IXGBE_KRM_LINK_CTRL_1_TETH_AN_CLAUSE_37_EN; lval |= IXGBE_KRM_LINK_CTRL_1_TETH_FORCE_SPEED_1G; rc = mac->ops.write_iosf_sb_reg(hw, IXGBE_KRM_LINK_CTRL_1(hw->bus.lan_id), IXGBE_SB_IOSF_TARGET_KR_PHY, lval); if (rc) return rc; rc = mac->ops.read_iosf_sb_reg(hw, IXGBE_KRM_SGMII_CTRL(hw->bus.lan_id), IXGBE_SB_IOSF_TARGET_KR_PHY, &sval); if (rc) return rc; sval |= IXGBE_KRM_SGMII_CTRL_MAC_TAR_FORCE_10_D; sval |= IXGBE_KRM_SGMII_CTRL_MAC_TAR_FORCE_100_D; rc = mac->ops.write_iosf_sb_reg(hw, IXGBE_KRM_SGMII_CTRL(hw->bus.lan_id), IXGBE_SB_IOSF_TARGET_KR_PHY, sval); if (rc) return rc; rc = mac->ops.read_iosf_sb_reg(hw, IXGBE_KRM_PMD_FLX_MASK_ST20(hw->bus.lan_id), IXGBE_SB_IOSF_TARGET_KR_PHY, &flx_val); if (rc) return rc; rc = mac->ops.read_iosf_sb_reg(hw, IXGBE_KRM_PMD_FLX_MASK_ST20(hw->bus.lan_id), IXGBE_SB_IOSF_TARGET_KR_PHY, &flx_val); if (rc) return rc; flx_val &= ~IXGBE_KRM_PMD_FLX_MASK_ST20_SPEED_MASK; flx_val |= IXGBE_KRM_PMD_FLX_MASK_ST20_SPEED_1G; flx_val &= ~IXGBE_KRM_PMD_FLX_MASK_ST20_AN_EN; flx_val |= IXGBE_KRM_PMD_FLX_MASK_ST20_SGMII_EN; flx_val |= IXGBE_KRM_PMD_FLX_MASK_ST20_AN37_EN; rc = mac->ops.write_iosf_sb_reg(hw, IXGBE_KRM_PMD_FLX_MASK_ST20(hw->bus.lan_id), IXGBE_SB_IOSF_TARGET_KR_PHY, flx_val); if (rc) return rc; rc = ixgbe_restart_an_internal_phy_x550em(hw); return rc; } /** ixgbe_init_mac_link_ops_X550em_a - Init mac link function pointers * @hw: pointer to hardware structure **/ static void ixgbe_init_mac_link_ops_X550em_a(struct ixgbe_hw *hw) { struct ixgbe_mac_info *mac = &hw->mac; switch (mac->ops.get_media_type(hw)) { case ixgbe_media_type_fiber: mac->ops.setup_fc = NULL; mac->ops.fc_autoneg = ixgbe_fc_autoneg_fiber_x550em_a; break; case ixgbe_media_type_backplane: mac->ops.fc_autoneg = ixgbe_fc_autoneg_backplane_x550em_a; mac->ops.setup_fc = ixgbe_setup_fc_backplane_x550em_a; break; default: break; } } /** ixgbe_init_mac_link_ops_X550em - init mac link function pointers * @hw: pointer to hardware structure **/ static void ixgbe_init_mac_link_ops_X550em(struct ixgbe_hw *hw) { struct ixgbe_mac_info *mac = &hw->mac; mac->ops.setup_fc = ixgbe_setup_fc_x550em; switch (mac->ops.get_media_type(hw)) { case ixgbe_media_type_fiber: /* CS4227 does not support autoneg, so disable the laser control * functions for SFP+ fiber */ mac->ops.disable_tx_laser = NULL; mac->ops.enable_tx_laser = NULL; mac->ops.flap_tx_laser = NULL; mac->ops.setup_link = ixgbe_setup_mac_link_multispeed_fiber; switch (hw->device_id) { case IXGBE_DEV_ID_X550EM_A_SFP_N: mac->ops.setup_mac_link = ixgbe_setup_mac_link_sfp_n; break; case IXGBE_DEV_ID_X550EM_A_SFP: mac->ops.setup_mac_link = ixgbe_setup_mac_link_sfp_x550a; break; default: mac->ops.setup_mac_link = ixgbe_setup_mac_link_sfp_x550em; break; } mac->ops.set_rate_select_speed = ixgbe_set_soft_rate_select_speed; break; case ixgbe_media_type_copper: mac->ops.setup_link = ixgbe_setup_mac_link_t_X550em; mac->ops.setup_fc = ixgbe_setup_fc_generic; mac->ops.check_link = ixgbe_check_link_t_X550em; return; case ixgbe_media_type_backplane: if (hw->device_id == IXGBE_DEV_ID_X550EM_A_SGMII || hw->device_id == IXGBE_DEV_ID_X550EM_A_SGMII_L) mac->ops.setup_link = ixgbe_setup_sgmii; break; default: break; } /* Additional modification for X550em_a devices */ if (hw->mac.type == ixgbe_mac_x550em_a) ixgbe_init_mac_link_ops_X550em_a(hw); } /** ixgbe_setup_sfp_modules_X550em - Setup SFP module * @hw: pointer to hardware structure */ static s32 ixgbe_setup_sfp_modules_X550em(struct ixgbe_hw *hw) { s32 status; bool linear; /* Check if SFP module is supported */ status = ixgbe_supported_sfp_modules_X550em(hw, &linear); if (status) return status; ixgbe_init_mac_link_ops_X550em(hw); hw->phy.ops.reset = NULL; return 0; } /** ixgbe_get_link_capabilities_x550em - Determines link capabilities * @hw: pointer to hardware structure * @speed: pointer to link speed * @autoneg: true when autoneg or autotry is enabled **/ static s32 ixgbe_get_link_capabilities_X550em(struct ixgbe_hw *hw, ixgbe_link_speed *speed, bool *autoneg) { /* SFP */ if (hw->phy.media_type == ixgbe_media_type_fiber) { /* CS4227 SFP must not enable auto-negotiation */ *autoneg = false; if (hw->phy.sfp_type == ixgbe_sfp_type_1g_sx_core0 || hw->phy.sfp_type == ixgbe_sfp_type_1g_sx_core1) { *speed = IXGBE_LINK_SPEED_1GB_FULL; return 0; } /* Link capabilities are based on SFP */ if (hw->phy.multispeed_fiber) *speed = IXGBE_LINK_SPEED_10GB_FULL | IXGBE_LINK_SPEED_1GB_FULL; else *speed = IXGBE_LINK_SPEED_10GB_FULL; } else { *speed = IXGBE_LINK_SPEED_10GB_FULL | IXGBE_LINK_SPEED_1GB_FULL; *autoneg = true; } return 0; } /** * ixgbe_get_lasi_ext_t_x550em - Determime external Base T PHY interrupt cause * @hw: pointer to hardware structure * @lsc: pointer to boolean flag which indicates whether external Base T * PHY interrupt is lsc * * Determime if external Base T PHY interrupt cause is high temperature * failure alarm or link status change. * * Return IXGBE_ERR_OVERTEMP if interrupt is high temperature * failure alarm, else return PHY access status. **/ static s32 ixgbe_get_lasi_ext_t_x550em(struct ixgbe_hw *hw, bool *lsc) { u32 status; u16 reg; *lsc = false; /* Vendor alarm triggered */ status = hw->phy.ops.read_reg(hw, IXGBE_MDIO_GLOBAL_CHIP_STD_INT_FLAG, MDIO_MMD_VEND1, ®); if (status || !(reg & IXGBE_MDIO_GLOBAL_VEN_ALM_INT_EN)) return status; /* Vendor Auto-Neg alarm triggered or Global alarm 1 triggered */ status = hw->phy.ops.read_reg(hw, IXGBE_MDIO_GLOBAL_INT_CHIP_VEN_FLAG, MDIO_MMD_VEND1, ®); if (status || !(reg & (IXGBE_MDIO_GLOBAL_AN_VEN_ALM_INT_EN | IXGBE_MDIO_GLOBAL_ALARM_1_INT))) return status; /* Global alarm triggered */ status = hw->phy.ops.read_reg(hw, IXGBE_MDIO_GLOBAL_ALARM_1, MDIO_MMD_VEND1, ®); if (status) return status; /* If high temperature failure, then return over temp error and exit */ if (reg & IXGBE_MDIO_GLOBAL_ALM_1_HI_TMP_FAIL) { /* power down the PHY in case the PHY FW didn't already */ ixgbe_set_copper_phy_power(hw, false); return IXGBE_ERR_OVERTEMP; } if (reg & IXGBE_MDIO_GLOBAL_ALM_1_DEV_FAULT) { /* device fault alarm triggered */ status = hw->phy.ops.read_reg(hw, IXGBE_MDIO_GLOBAL_FAULT_MSG, MDIO_MMD_VEND1, ®); if (status) return status; /* if device fault was due to high temp alarm handle and exit */ if (reg == IXGBE_MDIO_GLOBAL_FAULT_MSG_HI_TMP) { /* power down the PHY in case the PHY FW didn't */ ixgbe_set_copper_phy_power(hw, false); return IXGBE_ERR_OVERTEMP; } } /* Vendor alarm 2 triggered */ status = hw->phy.ops.read_reg(hw, IXGBE_MDIO_GLOBAL_CHIP_STD_INT_FLAG, MDIO_MMD_AN, ®); if (status || !(reg & IXGBE_MDIO_GLOBAL_STD_ALM2_INT)) return status; /* link connect/disconnect event occurred */ status = hw->phy.ops.read_reg(hw, IXGBE_MDIO_AUTO_NEG_VENDOR_TX_ALARM2, MDIO_MMD_AN, ®); if (status) return status; /* Indicate LSC */ if (reg & IXGBE_MDIO_AUTO_NEG_VEN_LSC) *lsc = true; return 0; } /** * ixgbe_enable_lasi_ext_t_x550em - Enable external Base T PHY interrupts * @hw: pointer to hardware structure * * Enable link status change and temperature failure alarm for the external * Base T PHY * * Returns PHY access status **/ static s32 ixgbe_enable_lasi_ext_t_x550em(struct ixgbe_hw *hw) { u32 status; u16 reg; bool lsc; /* Clear interrupt flags */ status = ixgbe_get_lasi_ext_t_x550em(hw, &lsc); /* Enable link status change alarm */ status = hw->phy.ops.read_reg(hw, IXGBE_MDIO_PMA_TX_VEN_LASI_INT_MASK, MDIO_MMD_AN, ®); if (status) return status; reg |= IXGBE_MDIO_PMA_TX_VEN_LASI_INT_EN; status = hw->phy.ops.write_reg(hw, IXGBE_MDIO_PMA_TX_VEN_LASI_INT_MASK, MDIO_MMD_AN, reg); if (status) return status; /* Enable high temperature failure and global fault alarms */ status = hw->phy.ops.read_reg(hw, IXGBE_MDIO_GLOBAL_INT_MASK, MDIO_MMD_VEND1, ®); if (status) return status; reg |= (IXGBE_MDIO_GLOBAL_INT_HI_TEMP_EN | IXGBE_MDIO_GLOBAL_INT_DEV_FAULT_EN); status = hw->phy.ops.write_reg(hw, IXGBE_MDIO_GLOBAL_INT_MASK, MDIO_MMD_VEND1, reg); if (status) return status; /* Enable vendor Auto-Neg alarm and Global Interrupt Mask 1 alarm */ status = hw->phy.ops.read_reg(hw, IXGBE_MDIO_GLOBAL_INT_CHIP_VEN_MASK, MDIO_MMD_VEND1, ®); if (status) return status; reg |= (IXGBE_MDIO_GLOBAL_AN_VEN_ALM_INT_EN | IXGBE_MDIO_GLOBAL_ALARM_1_INT); status = hw->phy.ops.write_reg(hw, IXGBE_MDIO_GLOBAL_INT_CHIP_VEN_MASK, MDIO_MMD_VEND1, reg); if (status) return status; /* Enable chip-wide vendor alarm */ status = hw->phy.ops.read_reg(hw, IXGBE_MDIO_GLOBAL_INT_CHIP_STD_MASK, MDIO_MMD_VEND1, ®); if (status) return status; reg |= IXGBE_MDIO_GLOBAL_VEN_ALM_INT_EN; status = hw->phy.ops.write_reg(hw, IXGBE_MDIO_GLOBAL_INT_CHIP_STD_MASK, MDIO_MMD_VEND1, reg); return status; } /** * ixgbe_handle_lasi_ext_t_x550em - Handle external Base T PHY interrupt * @hw: pointer to hardware structure * * Handle external Base T PHY interrupt. If high temperature * failure alarm then return error, else if link status change * then setup internal/external PHY link * * Return IXGBE_ERR_OVERTEMP if interrupt is high temperature * failure alarm, else return PHY access status. **/ static s32 ixgbe_handle_lasi_ext_t_x550em(struct ixgbe_hw *hw) { struct ixgbe_phy_info *phy = &hw->phy; bool lsc; u32 status; status = ixgbe_get_lasi_ext_t_x550em(hw, &lsc); if (status) return status; if (lsc && phy->ops.setup_internal_link) return phy->ops.setup_internal_link(hw); return 0; } /** * ixgbe_setup_kr_speed_x550em - Configure the KR PHY for link speed. * @hw: pointer to hardware structure * @speed: link speed * * Configures the integrated KR PHY. **/ static s32 ixgbe_setup_kr_speed_x550em(struct ixgbe_hw *hw, ixgbe_link_speed speed) { s32 status; u32 reg_val; status = hw->mac.ops.read_iosf_sb_reg(hw, IXGBE_KRM_LINK_CTRL_1(hw->bus.lan_id), IXGBE_SB_IOSF_TARGET_KR_PHY, ®_val); if (status) return status; reg_val |= IXGBE_KRM_LINK_CTRL_1_TETH_AN_ENABLE; reg_val &= ~(IXGBE_KRM_LINK_CTRL_1_TETH_AN_CAP_KR | IXGBE_KRM_LINK_CTRL_1_TETH_AN_CAP_KX); /* Advertise 10G support. */ if (speed & IXGBE_LINK_SPEED_10GB_FULL) reg_val |= IXGBE_KRM_LINK_CTRL_1_TETH_AN_CAP_KR; /* Advertise 1G support. */ if (speed & IXGBE_LINK_SPEED_1GB_FULL) reg_val |= IXGBE_KRM_LINK_CTRL_1_TETH_AN_CAP_KX; status = hw->mac.ops.write_iosf_sb_reg(hw, IXGBE_KRM_LINK_CTRL_1(hw->bus.lan_id), IXGBE_SB_IOSF_TARGET_KR_PHY, reg_val); if (hw->mac.type == ixgbe_mac_x550em_a) { /* Set lane mode to KR auto negotiation */ status = hw->mac.ops.read_iosf_sb_reg(hw, IXGBE_KRM_PMD_FLX_MASK_ST20(hw->bus.lan_id), IXGBE_SB_IOSF_TARGET_KR_PHY, ®_val); if (status) return status; reg_val &= ~IXGBE_KRM_PMD_FLX_MASK_ST20_SPEED_MASK; reg_val |= IXGBE_KRM_PMD_FLX_MASK_ST20_SPEED_AN; reg_val |= IXGBE_KRM_PMD_FLX_MASK_ST20_AN_EN; reg_val &= ~IXGBE_KRM_PMD_FLX_MASK_ST20_AN37_EN; reg_val &= ~IXGBE_KRM_PMD_FLX_MASK_ST20_SGMII_EN; status = hw->mac.ops.write_iosf_sb_reg(hw, IXGBE_KRM_PMD_FLX_MASK_ST20(hw->bus.lan_id), IXGBE_SB_IOSF_TARGET_KR_PHY, reg_val); } return ixgbe_restart_an_internal_phy_x550em(hw); } /** ixgbe_setup_kx4_x550em - Configure the KX4 PHY. * @hw: pointer to hardware structure * * Configures the integrated KX4 PHY. **/ static s32 ixgbe_setup_kx4_x550em(struct ixgbe_hw *hw) { s32 status; u32 reg_val; status = hw->mac.ops.read_iosf_sb_reg(hw, IXGBE_KX4_LINK_CNTL_1, IXGBE_SB_IOSF_TARGET_KX4_PCS0 + hw->bus.lan_id, ®_val); if (status) return status; reg_val &= ~(IXGBE_KX4_LINK_CNTL_1_TETH_AN_CAP_KX4 | IXGBE_KX4_LINK_CNTL_1_TETH_AN_CAP_KX); reg_val |= IXGBE_KX4_LINK_CNTL_1_TETH_AN_ENABLE; /* Advertise 10G support. */ if (hw->phy.autoneg_advertised & IXGBE_LINK_SPEED_10GB_FULL) reg_val |= IXGBE_KX4_LINK_CNTL_1_TETH_AN_CAP_KX4; /* Advertise 1G support. */ if (hw->phy.autoneg_advertised & IXGBE_LINK_SPEED_1GB_FULL) reg_val |= IXGBE_KX4_LINK_CNTL_1_TETH_AN_CAP_KX; /* Restart auto-negotiation. */ reg_val |= IXGBE_KX4_LINK_CNTL_1_TETH_AN_RESTART; status = hw->mac.ops.write_iosf_sb_reg(hw, IXGBE_KX4_LINK_CNTL_1, IXGBE_SB_IOSF_TARGET_KX4_PCS0 + hw->bus.lan_id, reg_val); return status; } /** * ixgbe_setup_kr_x550em - Configure the KR PHY * @hw: pointer to hardware structure * * Configures the integrated KR PHY for X550EM_x. **/ static s32 ixgbe_setup_kr_x550em(struct ixgbe_hw *hw) { if (hw->mac.type != ixgbe_mac_X550EM_x) return 0; return ixgbe_setup_kr_speed_x550em(hw, hw->phy.autoneg_advertised); } /** ixgbe_ext_phy_t_x550em_get_link - Get ext phy link status * @hw: address of hardware structure * @link_up: address of boolean to indicate link status * * Returns error code if unable to get link status. **/ static s32 ixgbe_ext_phy_t_x550em_get_link(struct ixgbe_hw *hw, bool *link_up) { u32 ret; u16 autoneg_status; *link_up = false; /* read this twice back to back to indicate current status */ ret = hw->phy.ops.read_reg(hw, MDIO_STAT1, MDIO_MMD_AN, &autoneg_status); if (ret) return ret; ret = hw->phy.ops.read_reg(hw, MDIO_STAT1, MDIO_MMD_AN, &autoneg_status); if (ret) return ret; *link_up = !!(autoneg_status & IXGBE_MDIO_AUTO_NEG_LINK_STATUS); return 0; } /** ixgbe_setup_internal_phy_t_x550em - Configure KR PHY to X557 link * @hw: point to hardware structure * * Configures the link between the integrated KR PHY and the external X557 PHY * The driver will call this function when it gets a link status change * interrupt from the X557 PHY. This function configures the link speed * between the PHYs to match the link speed of the BASE-T link. * * A return of a non-zero value indicates an error, and the base driver should * not report link up. **/ static s32 ixgbe_setup_internal_phy_t_x550em(struct ixgbe_hw *hw) { ixgbe_link_speed force_speed; bool link_up; u32 status; u16 speed; if (hw->mac.ops.get_media_type(hw) != ixgbe_media_type_copper) return IXGBE_ERR_CONFIG; if (hw->phy.nw_mng_if_sel & IXGBE_NW_MNG_IF_SEL_INT_PHY_MODE) { speed = IXGBE_LINK_SPEED_10GB_FULL | IXGBE_LINK_SPEED_1GB_FULL; return ixgbe_setup_kr_speed_x550em(hw, speed); } /* If link is not up, then there is no setup necessary so return */ status = ixgbe_ext_phy_t_x550em_get_link(hw, &link_up); if (status) return status; if (!link_up) return 0; status = hw->phy.ops.read_reg(hw, IXGBE_MDIO_AUTO_NEG_VENDOR_STAT, MDIO_MMD_AN, &speed); if (status) return status; /* If link is not still up, then no setup is necessary so return */ status = ixgbe_ext_phy_t_x550em_get_link(hw, &link_up); if (status) return status; if (!link_up) return 0; /* clear everything but the speed and duplex bits */ speed &= IXGBE_MDIO_AUTO_NEG_VENDOR_STATUS_MASK; switch (speed) { case IXGBE_MDIO_AUTO_NEG_VENDOR_STATUS_10GB_FULL: force_speed = IXGBE_LINK_SPEED_10GB_FULL; break; case IXGBE_MDIO_AUTO_NEG_VENDOR_STATUS_1GB_FULL: force_speed = IXGBE_LINK_SPEED_1GB_FULL; break; default: /* Internal PHY does not support anything else */ return IXGBE_ERR_INVALID_LINK_SETTINGS; } return ixgbe_setup_ixfi_x550em(hw, &force_speed); } /** ixgbe_reset_phy_t_X550em - Performs X557 PHY reset and enables LASI * @hw: pointer to hardware structure **/ static s32 ixgbe_reset_phy_t_X550em(struct ixgbe_hw *hw) { s32 status; status = ixgbe_reset_phy_generic(hw); if (status) return status; /* Configure Link Status Alarm and Temperature Threshold interrupts */ return ixgbe_enable_lasi_ext_t_x550em(hw); } /** * ixgbe_led_on_t_x550em - Turns on the software controllable LEDs. * @hw: pointer to hardware structure * @led_idx: led number to turn on **/ static s32 ixgbe_led_on_t_x550em(struct ixgbe_hw *hw, u32 led_idx) { u16 phy_data; if (led_idx >= IXGBE_X557_MAX_LED_INDEX) return IXGBE_ERR_PARAM; /* To turn on the LED, set mode to ON. */ hw->phy.ops.read_reg(hw, IXGBE_X557_LED_PROVISIONING + led_idx, MDIO_MMD_VEND1, &phy_data); phy_data |= IXGBE_X557_LED_MANUAL_SET_MASK; hw->phy.ops.write_reg(hw, IXGBE_X557_LED_PROVISIONING + led_idx, MDIO_MMD_VEND1, phy_data); return 0; } /** * ixgbe_led_off_t_x550em - Turns off the software controllable LEDs. * @hw: pointer to hardware structure * @led_idx: led number to turn off **/ static s32 ixgbe_led_off_t_x550em(struct ixgbe_hw *hw, u32 led_idx) { u16 phy_data; if (led_idx >= IXGBE_X557_MAX_LED_INDEX) return IXGBE_ERR_PARAM; /* To turn on the LED, set mode to ON. */ hw->phy.ops.read_reg(hw, IXGBE_X557_LED_PROVISIONING + led_idx, MDIO_MMD_VEND1, &phy_data); phy_data &= ~IXGBE_X557_LED_MANUAL_SET_MASK; hw->phy.ops.write_reg(hw, IXGBE_X557_LED_PROVISIONING + led_idx, MDIO_MMD_VEND1, phy_data); return 0; } /** ixgbe_get_lcd_x550em - Determine lowest common denominator * @hw: pointer to hardware structure * @lcd_speed: pointer to lowest common link speed * * Determine lowest common link speed with link partner. **/ static s32 ixgbe_get_lcd_t_x550em(struct ixgbe_hw *hw, ixgbe_link_speed *lcd_speed) { u16 an_lp_status; s32 status; u16 word = hw->eeprom.ctrl_word_3; *lcd_speed = IXGBE_LINK_SPEED_UNKNOWN; status = hw->phy.ops.read_reg(hw, IXGBE_AUTO_NEG_LP_STATUS, MDIO_MMD_AN, &an_lp_status); if (status) return status; /* If link partner advertised 1G, return 1G */ if (an_lp_status & IXGBE_AUTO_NEG_LP_1000BASE_CAP) { *lcd_speed = IXGBE_LINK_SPEED_1GB_FULL; return status; } /* If 10G disabled for LPLU via NVM D10GMP, then return no valid LCD */ if ((hw->bus.lan_id && (word & NVM_INIT_CTRL_3_D10GMP_PORT1)) || (word & NVM_INIT_CTRL_3_D10GMP_PORT0)) return status; /* Link partner not capable of lower speeds, return 10G */ *lcd_speed = IXGBE_LINK_SPEED_10GB_FULL; return status; } /** * ixgbe_setup_fc_x550em - Set up flow control * @hw: pointer to hardware structure */ static s32 ixgbe_setup_fc_x550em(struct ixgbe_hw *hw) { bool pause, asm_dir; u32 reg_val; s32 rc; /* Validate the requested mode */ if (hw->fc.strict_ieee && hw->fc.requested_mode == ixgbe_fc_rx_pause) { hw_err(hw, "ixgbe_fc_rx_pause not valid in strict IEEE mode\n"); return IXGBE_ERR_INVALID_LINK_SETTINGS; } /* 10gig parts do not have a word in the EEPROM to determine the * default flow control setting, so we explicitly set it to full. */ if (hw->fc.requested_mode == ixgbe_fc_default) hw->fc.requested_mode = ixgbe_fc_full; /* Determine PAUSE and ASM_DIR bits. */ switch (hw->fc.requested_mode) { case ixgbe_fc_none: pause = false; asm_dir = false; break; case ixgbe_fc_tx_pause: pause = false; asm_dir = true; break; case ixgbe_fc_rx_pause: /* Rx Flow control is enabled and Tx Flow control is * disabled by software override. Since there really * isn't a way to advertise that we are capable of RX * Pause ONLY, we will advertise that we support both * symmetric and asymmetric Rx PAUSE, as such we fall * through to the fc_full statement. Later, we will * disable the adapter's ability to send PAUSE frames. */ /* Fallthrough */ case ixgbe_fc_full: pause = true; asm_dir = true; break; default: hw_err(hw, "Flow control param set incorrectly\n"); return IXGBE_ERR_CONFIG; } if (hw->device_id != IXGBE_DEV_ID_X550EM_X_KR && hw->device_id != IXGBE_DEV_ID_X550EM_A_KR && hw->device_id != IXGBE_DEV_ID_X550EM_A_KR_L) return 0; rc = hw->mac.ops.read_iosf_sb_reg(hw, IXGBE_KRM_AN_CNTL_1(hw->bus.lan_id), IXGBE_SB_IOSF_TARGET_KR_PHY, ®_val); if (rc) return rc; reg_val &= ~(IXGBE_KRM_AN_CNTL_1_SYM_PAUSE | IXGBE_KRM_AN_CNTL_1_ASM_PAUSE); if (pause) reg_val |= IXGBE_KRM_AN_CNTL_1_SYM_PAUSE; if (asm_dir) reg_val |= IXGBE_KRM_AN_CNTL_1_ASM_PAUSE; rc = hw->mac.ops.write_iosf_sb_reg(hw, IXGBE_KRM_AN_CNTL_1(hw->bus.lan_id), IXGBE_SB_IOSF_TARGET_KR_PHY, reg_val); /* This device does not fully support AN. */ hw->fc.disable_fc_autoneg = true; return rc; } /** * ixgbe_fc_autoneg_backplane_x550em_a - Enable flow control IEEE clause 37 * @hw: pointer to hardware structure **/ static void ixgbe_fc_autoneg_backplane_x550em_a(struct ixgbe_hw *hw) { u32 link_s1, lp_an_page_low, an_cntl_1; s32 status = IXGBE_ERR_FC_NOT_NEGOTIATED; ixgbe_link_speed speed; bool link_up; /* AN should have completed when the cable was plugged in. * Look for reasons to bail out. Bail out if: * - FC autoneg is disabled, or if * - link is not up. */ if (hw->fc.disable_fc_autoneg) { hw_err(hw, "Flow control autoneg is disabled"); goto out; } hw->mac.ops.check_link(hw, &speed, &link_up, false); if (!link_up) { hw_err(hw, "The link is down"); goto out; } /* Check at auto-negotiation has completed */ status = hw->mac.ops.read_iosf_sb_reg(hw, IXGBE_KRM_LINK_S1(hw->bus.lan_id), IXGBE_SB_IOSF_TARGET_KR_PHY, &link_s1); if (status || (link_s1 & IXGBE_KRM_LINK_S1_MAC_AN_COMPLETE) == 0) { hw_dbg(hw, "Auto-Negotiation did not complete\n"); status = IXGBE_ERR_FC_NOT_NEGOTIATED; goto out; } /* Read the 10g AN autoc and LP ability registers and resolve * local flow control settings accordingly */ status = hw->mac.ops.read_iosf_sb_reg(hw, IXGBE_KRM_AN_CNTL_1(hw->bus.lan_id), IXGBE_SB_IOSF_TARGET_KR_PHY, &an_cntl_1); if (status) { hw_dbg(hw, "Auto-Negotiation did not complete\n"); goto out; } status = hw->mac.ops.read_iosf_sb_reg(hw, IXGBE_KRM_LP_BASE_PAGE_HIGH(hw->bus.lan_id), IXGBE_SB_IOSF_TARGET_KR_PHY, &lp_an_page_low); if (status) { hw_dbg(hw, "Auto-Negotiation did not complete\n"); goto out; } status = ixgbe_negotiate_fc(hw, an_cntl_1, lp_an_page_low, IXGBE_KRM_AN_CNTL_1_SYM_PAUSE, IXGBE_KRM_AN_CNTL_1_ASM_PAUSE, IXGBE_KRM_LP_BASE_PAGE_HIGH_SYM_PAUSE, IXGBE_KRM_LP_BASE_PAGE_HIGH_ASM_PAUSE); out: if (!status) { hw->fc.fc_was_autonegged = true; } else { hw->fc.fc_was_autonegged = false; hw->fc.current_mode = hw->fc.requested_mode; } } /** * ixgbe_fc_autoneg_fiber_x550em_a - passthrough FC settings * @hw: pointer to hardware structure **/ static void ixgbe_fc_autoneg_fiber_x550em_a(struct ixgbe_hw *hw) { hw->fc.fc_was_autonegged = false; hw->fc.current_mode = hw->fc.requested_mode; } /** ixgbe_enter_lplu_x550em - Transition to low power states * @hw: pointer to hardware structure * * Configures Low Power Link Up on transition to low power states * (from D0 to non-D0). Link is required to enter LPLU so avoid resetting * the X557 PHY immediately prior to entering LPLU. **/ static s32 ixgbe_enter_lplu_t_x550em(struct ixgbe_hw *hw) { u16 an_10g_cntl_reg, autoneg_reg, speed; s32 status; ixgbe_link_speed lcd_speed; u32 save_autoneg; bool link_up; /* If blocked by MNG FW, then don't restart AN */ if (ixgbe_check_reset_blocked(hw)) return 0; status = ixgbe_ext_phy_t_x550em_get_link(hw, &link_up); if (status) return status; status = hw->eeprom.ops.read(hw, NVM_INIT_CTRL_3, &hw->eeprom.ctrl_word_3); if (status) return status; /* If link is down, LPLU disabled in NVM, WoL disabled, or * manageability disabled, then force link down by entering * low power mode. */ if (!link_up || !(hw->eeprom.ctrl_word_3 & NVM_INIT_CTRL_3_LPLU) || !(hw->wol_enabled || ixgbe_mng_present(hw))) return ixgbe_set_copper_phy_power(hw, false); /* Determine LCD */ status = ixgbe_get_lcd_t_x550em(hw, &lcd_speed); if (status) return status; /* If no valid LCD link speed, then force link down and exit. */ if (lcd_speed == IXGBE_LINK_SPEED_UNKNOWN) return ixgbe_set_copper_phy_power(hw, false); status = hw->phy.ops.read_reg(hw, IXGBE_MDIO_AUTO_NEG_VENDOR_STAT, MDIO_MMD_AN, &speed); if (status) return status; /* If no link now, speed is invalid so take link down */ status = ixgbe_ext_phy_t_x550em_get_link(hw, &link_up); if (status) return ixgbe_set_copper_phy_power(hw, false); /* clear everything but the speed bits */ speed &= IXGBE_MDIO_AUTO_NEG_VEN_STAT_SPEED_MASK; /* If current speed is already LCD, then exit. */ if (((speed == IXGBE_MDIO_AUTO_NEG_VENDOR_STATUS_1GB) && (lcd_speed == IXGBE_LINK_SPEED_1GB_FULL)) || ((speed == IXGBE_MDIO_AUTO_NEG_VENDOR_STATUS_10GB) && (lcd_speed == IXGBE_LINK_SPEED_10GB_FULL))) return status; /* Clear AN completed indication */ status = hw->phy.ops.read_reg(hw, IXGBE_MDIO_AUTO_NEG_VENDOR_TX_ALARM, MDIO_MMD_AN, &autoneg_reg); if (status) return status; status = hw->phy.ops.read_reg(hw, MDIO_AN_10GBT_CTRL, MDIO_MMD_AN, &an_10g_cntl_reg); if (status) return status; status = hw->phy.ops.read_reg(hw, IXGBE_MII_AUTONEG_VENDOR_PROVISION_1_REG, MDIO_MMD_AN, &autoneg_reg); if (status) return status; save_autoneg = hw->phy.autoneg_advertised; /* Setup link at least common link speed */ status = hw->mac.ops.setup_link(hw, lcd_speed, false); /* restore autoneg from before setting lplu speed */ hw->phy.autoneg_advertised = save_autoneg; return status; } /** * ixgbe_read_mng_if_sel_x550em - Read NW_MNG_IF_SEL register * @hw: pointer to hardware structure * * Read NW_MNG_IF_SEL register and save field values. */ static void ixgbe_read_mng_if_sel_x550em(struct ixgbe_hw *hw) { /* Save NW management interface connected on board. This is used * to determine internal PHY mode. */ hw->phy.nw_mng_if_sel = IXGBE_READ_REG(hw, IXGBE_NW_MNG_IF_SEL); /* If X552 (X550EM_a) and MDIO is connected to external PHY, then set * PHY address. This register field was has only been used for X552. */ if (hw->mac.type == ixgbe_mac_x550em_a && hw->phy.nw_mng_if_sel & IXGBE_NW_MNG_IF_SEL_MDIO_ACT) { hw->phy.mdio.prtad = (hw->phy.nw_mng_if_sel & IXGBE_NW_MNG_IF_SEL_MDIO_PHY_ADD) >> IXGBE_NW_MNG_IF_SEL_MDIO_PHY_ADD_SHIFT; } } /** ixgbe_init_phy_ops_X550em - PHY/SFP specific init * @hw: pointer to hardware structure * * Initialize any function pointers that were not able to be * set during init_shared_code because the PHY/SFP type was * not known. Perform the SFP init if necessary. **/ static s32 ixgbe_init_phy_ops_X550em(struct ixgbe_hw *hw) { struct ixgbe_phy_info *phy = &hw->phy; s32 ret_val; hw->mac.ops.set_lan_id(hw); ixgbe_read_mng_if_sel_x550em(hw); if (hw->mac.ops.get_media_type(hw) == ixgbe_media_type_fiber) { phy->phy_semaphore_mask = IXGBE_GSSR_SHARED_I2C_SM; ixgbe_setup_mux_ctl(hw); } /* Identify the PHY or SFP module */ ret_val = phy->ops.identify(hw); /* Setup function pointers based on detected hardware */ ixgbe_init_mac_link_ops_X550em(hw); if (phy->sfp_type != ixgbe_sfp_type_unknown) phy->ops.reset = NULL; /* Set functions pointers based on phy type */ switch (hw->phy.type) { case ixgbe_phy_x550em_kx4: phy->ops.setup_link = ixgbe_setup_kx4_x550em; phy->ops.read_reg = ixgbe_read_phy_reg_x550em; phy->ops.write_reg = ixgbe_write_phy_reg_x550em; break; case ixgbe_phy_x550em_kr: phy->ops.setup_link = ixgbe_setup_kr_x550em; phy->ops.read_reg = ixgbe_read_phy_reg_x550em; phy->ops.write_reg = ixgbe_write_phy_reg_x550em; break; case ixgbe_phy_x550em_ext_t: /* Save NW management interface connected on board. This is used * to determine internal PHY mode */ phy->nw_mng_if_sel = IXGBE_READ_REG(hw, IXGBE_NW_MNG_IF_SEL); /* If internal link mode is XFI, then setup iXFI internal link, * else setup KR now. */ phy->ops.setup_internal_link = ixgbe_setup_internal_phy_t_x550em; /* setup SW LPLU only for first revision */ if (hw->mac.type == ixgbe_mac_X550EM_x && !(IXGBE_READ_REG(hw, IXGBE_FUSES0_GROUP(0)) & IXGBE_FUSES0_REV_MASK)) phy->ops.enter_lplu = ixgbe_enter_lplu_t_x550em; phy->ops.handle_lasi = ixgbe_handle_lasi_ext_t_x550em; phy->ops.reset = ixgbe_reset_phy_t_X550em; break; default: break; } return ret_val; } /** ixgbe_get_media_type_X550em - Get media type * @hw: pointer to hardware structure * * Returns the media type (fiber, copper, backplane) * */ static enum ixgbe_media_type ixgbe_get_media_type_X550em(struct ixgbe_hw *hw) { enum ixgbe_media_type media_type; /* Detect if there is a copper PHY attached. */ switch (hw->device_id) { case IXGBE_DEV_ID_X550EM_A_SGMII: case IXGBE_DEV_ID_X550EM_A_SGMII_L: hw->phy.type = ixgbe_phy_sgmii; /* Fallthrough */ case IXGBE_DEV_ID_X550EM_X_KR: case IXGBE_DEV_ID_X550EM_X_KX4: case IXGBE_DEV_ID_X550EM_A_KR: case IXGBE_DEV_ID_X550EM_A_KR_L: media_type = ixgbe_media_type_backplane; break; case IXGBE_DEV_ID_X550EM_X_SFP: case IXGBE_DEV_ID_X550EM_A_SFP: case IXGBE_DEV_ID_X550EM_A_SFP_N: media_type = ixgbe_media_type_fiber; break; case IXGBE_DEV_ID_X550EM_X_1G_T: case IXGBE_DEV_ID_X550EM_X_10G_T: case IXGBE_DEV_ID_X550EM_A_10G_T: media_type = ixgbe_media_type_copper; break; default: media_type = ixgbe_media_type_unknown; break; } return media_type; } /** ixgbe_init_ext_t_x550em - Start (unstall) the external Base T PHY. ** @hw: pointer to hardware structure **/ static s32 ixgbe_init_ext_t_x550em(struct ixgbe_hw *hw) { s32 status; u16 reg; status = hw->phy.ops.read_reg(hw, IXGBE_MDIO_TX_VENDOR_ALARMS_3, MDIO_MMD_PMAPMD, ®); if (status) return status; /* If PHY FW reset completed bit is set then this is the first * SW instance after a power on so the PHY FW must be un-stalled. */ if (reg & IXGBE_MDIO_TX_VENDOR_ALARMS_3_RST_MASK) { status = hw->phy.ops.read_reg(hw, IXGBE_MDIO_GLOBAL_RES_PR_10, MDIO_MMD_VEND1, ®); if (status) return status; reg &= ~IXGBE_MDIO_POWER_UP_STALL; status = hw->phy.ops.write_reg(hw, IXGBE_MDIO_GLOBAL_RES_PR_10, MDIO_MMD_VEND1, reg); if (status) return status; } return status; } /** * ixgbe_set_mdio_speed - Set MDIO clock speed * @hw: pointer to hardware structure */ static void ixgbe_set_mdio_speed(struct ixgbe_hw *hw) { u32 hlreg0; switch (hw->device_id) { case IXGBE_DEV_ID_X550EM_X_10G_T: case IXGBE_DEV_ID_X550EM_A_SGMII: case IXGBE_DEV_ID_X550EM_A_SGMII_L: case IXGBE_DEV_ID_X550EM_A_10G_T: case IXGBE_DEV_ID_X550EM_A_SFP: /* Config MDIO clock speed before the first MDIO PHY access */ hlreg0 = IXGBE_READ_REG(hw, IXGBE_HLREG0); hlreg0 &= ~IXGBE_HLREG0_MDCSPD; IXGBE_WRITE_REG(hw, IXGBE_HLREG0, hlreg0); break; default: break; } } /** ixgbe_reset_hw_X550em - Perform hardware reset ** @hw: pointer to hardware structure ** ** Resets the hardware by resetting the transmit and receive units, masks ** and clears all interrupts, perform a PHY reset, and perform a link (MAC) ** reset. **/ static s32 ixgbe_reset_hw_X550em(struct ixgbe_hw *hw) { ixgbe_link_speed link_speed; s32 status; u32 ctrl = 0; u32 i; bool link_up = false; /* Call adapter stop to disable Tx/Rx and clear interrupts */ status = hw->mac.ops.stop_adapter(hw); if (status) return status; /* flush pending Tx transactions */ ixgbe_clear_tx_pending(hw); /* PHY ops must be identified and initialized prior to reset */ /* Identify PHY and related function pointers */ status = hw->phy.ops.init(hw); /* start the external PHY */ if (hw->phy.type == ixgbe_phy_x550em_ext_t) { status = ixgbe_init_ext_t_x550em(hw); if (status) return status; } /* Setup SFP module if there is one present. */ if (hw->phy.sfp_setup_needed) { status = hw->mac.ops.setup_sfp(hw); hw->phy.sfp_setup_needed = false; } /* Reset PHY */ if (!hw->phy.reset_disable && hw->phy.ops.reset) hw->phy.ops.reset(hw); mac_reset_top: /* Issue global reset to the MAC. Needs to be SW reset if link is up. * If link reset is used when link is up, it might reset the PHY when * mng is using it. If link is down or the flag to force full link * reset is set, then perform link reset. */ ctrl = IXGBE_CTRL_LNK_RST; if (!hw->force_full_reset) { hw->mac.ops.check_link(hw, &link_speed, &link_up, false); if (link_up) ctrl = IXGBE_CTRL_RST; } ctrl |= IXGBE_READ_REG(hw, IXGBE_CTRL); IXGBE_WRITE_REG(hw, IXGBE_CTRL, ctrl); IXGBE_WRITE_FLUSH(hw); usleep_range(1000, 1200); /* Poll for reset bit to self-clear meaning reset is complete */ for (i = 0; i < 10; i++) { ctrl = IXGBE_READ_REG(hw, IXGBE_CTRL); if (!(ctrl & IXGBE_CTRL_RST_MASK)) break; udelay(1); } if (ctrl & IXGBE_CTRL_RST_MASK) { status = IXGBE_ERR_RESET_FAILED; hw_dbg(hw, "Reset polling failed to complete.\n"); } msleep(50); /* Double resets are required for recovery from certain error * clear the multicast table. Also reset num_rar_entries to 128, * since we modify this value when programming the SAN MAC address. */ if (hw->mac.flags & IXGBE_FLAGS_DOUBLE_RESET_REQUIRED) { hw->mac.flags &= ~IXGBE_FLAGS_DOUBLE_RESET_REQUIRED; goto mac_reset_top; } /* Store the permanent mac address */ hw->mac.ops.get_mac_addr(hw, hw->mac.perm_addr); /* Store MAC address from RAR0, clear receive address registers, and * clear the multicast table. Also reset num_rar_entries to 128, * since we modify this value when programming the SAN MAC address. */ hw->mac.num_rar_entries = 128; hw->mac.ops.init_rx_addrs(hw); ixgbe_set_mdio_speed(hw); if (hw->device_id == IXGBE_DEV_ID_X550EM_X_SFP) ixgbe_setup_mux_ctl(hw); return status; } /** ixgbe_set_ethertype_anti_spoofing_X550 - Enable/Disable Ethertype * anti-spoofing * @hw: pointer to hardware structure * @enable: enable or disable switch for Ethertype anti-spoofing * @vf: Virtual Function pool - VF Pool to set for Ethertype anti-spoofing **/ static void ixgbe_set_ethertype_anti_spoofing_X550(struct ixgbe_hw *hw, bool enable, int vf) { int vf_target_reg = vf >> 3; int vf_target_shift = vf % 8 + IXGBE_SPOOF_ETHERTYPEAS_SHIFT; u32 pfvfspoof; pfvfspoof = IXGBE_READ_REG(hw, IXGBE_PFVFSPOOF(vf_target_reg)); if (enable) pfvfspoof |= BIT(vf_target_shift); else pfvfspoof &= ~BIT(vf_target_shift); IXGBE_WRITE_REG(hw, IXGBE_PFVFSPOOF(vf_target_reg), pfvfspoof); } /** ixgbe_set_source_address_pruning_X550 - Enable/Disbale src address pruning * @hw: pointer to hardware structure * @enable: enable or disable source address pruning * @pool: Rx pool to set source address pruning for **/ static void ixgbe_set_source_address_pruning_X550(struct ixgbe_hw *hw, bool enable, unsigned int pool) { u64 pfflp; /* max rx pool is 63 */ if (pool > 63) return; pfflp = (u64)IXGBE_READ_REG(hw, IXGBE_PFFLPL); pfflp |= (u64)IXGBE_READ_REG(hw, IXGBE_PFFLPH) << 32; if (enable) pfflp |= (1ULL << pool); else pfflp &= ~(1ULL << pool); IXGBE_WRITE_REG(hw, IXGBE_PFFLPL, (u32)pfflp); IXGBE_WRITE_REG(hw, IXGBE_PFFLPH, (u32)(pfflp >> 32)); } /** * ixgbe_setup_fc_backplane_x550em_a - Set up flow control * @hw: pointer to hardware structure * * Called at init time to set up flow control. **/ static s32 ixgbe_setup_fc_backplane_x550em_a(struct ixgbe_hw *hw) { s32 status = 0; u32 an_cntl = 0; /* Validate the requested mode */ if (hw->fc.strict_ieee && hw->fc.requested_mode == ixgbe_fc_rx_pause) { hw_err(hw, "ixgbe_fc_rx_pause not valid in strict IEEE mode\n"); return IXGBE_ERR_INVALID_LINK_SETTINGS; } if (hw->fc.requested_mode == ixgbe_fc_default) hw->fc.requested_mode = ixgbe_fc_full; /* Set up the 1G and 10G flow control advertisement registers so the * HW will be able to do FC autoneg once the cable is plugged in. If * we link at 10G, the 1G advertisement is harmless and vice versa. */ status = hw->mac.ops.read_iosf_sb_reg(hw, IXGBE_KRM_AN_CNTL_1(hw->bus.lan_id), IXGBE_SB_IOSF_TARGET_KR_PHY, &an_cntl); if (status) { hw_dbg(hw, "Auto-Negotiation did not complete\n"); return status; } /* The possible values of fc.requested_mode are: * 0: Flow control is completely disabled * 1: Rx flow control is enabled (we can receive pause frames, * but not send pause frames). * 2: Tx flow control is enabled (we can send pause frames but * we do not support receiving pause frames). * 3: Both Rx and Tx flow control (symmetric) are enabled. * other: Invalid. */ switch (hw->fc.requested_mode) { case ixgbe_fc_none: /* Flow control completely disabled by software override. */ an_cntl &= ~(IXGBE_KRM_AN_CNTL_1_SYM_PAUSE | IXGBE_KRM_AN_CNTL_1_ASM_PAUSE); break; case ixgbe_fc_tx_pause: /* Tx Flow control is enabled, and Rx Flow control is * disabled by software override. */ an_cntl |= IXGBE_KRM_AN_CNTL_1_ASM_PAUSE; an_cntl &= ~IXGBE_KRM_AN_CNTL_1_SYM_PAUSE; break; case ixgbe_fc_rx_pause: /* Rx Flow control is enabled and Tx Flow control is * disabled by software override. Since there really * isn't a way to advertise that we are capable of RX * Pause ONLY, we will advertise that we support both * symmetric and asymmetric Rx PAUSE, as such we fall * through to the fc_full statement. Later, we will * disable the adapter's ability to send PAUSE frames. */ case ixgbe_fc_full: /* Flow control (both Rx and Tx) is enabled by SW override. */ an_cntl |= IXGBE_KRM_AN_CNTL_1_SYM_PAUSE | IXGBE_KRM_AN_CNTL_1_ASM_PAUSE; break; default: hw_err(hw, "Flow control param set incorrectly\n"); return IXGBE_ERR_CONFIG; } status = hw->mac.ops.write_iosf_sb_reg(hw, IXGBE_KRM_AN_CNTL_1(hw->bus.lan_id), IXGBE_SB_IOSF_TARGET_KR_PHY, an_cntl); /* Restart auto-negotiation. */ status = ixgbe_restart_an_internal_phy_x550em(hw); return status; } /** * ixgbe_set_mux - Set mux for port 1 access with CS4227 * @hw: pointer to hardware structure * @state: set mux if 1, clear if 0 */ static void ixgbe_set_mux(struct ixgbe_hw *hw, u8 state) { u32 esdp; if (!hw->bus.lan_id) return; esdp = IXGBE_READ_REG(hw, IXGBE_ESDP); if (state) esdp |= IXGBE_ESDP_SDP1; else esdp &= ~IXGBE_ESDP_SDP1; IXGBE_WRITE_REG(hw, IXGBE_ESDP, esdp); IXGBE_WRITE_FLUSH(hw); } /** * ixgbe_acquire_swfw_sync_X550em - Acquire SWFW semaphore * @hw: pointer to hardware structure * @mask: Mask to specify which semaphore to acquire * * Acquires the SWFW semaphore and sets the I2C MUX */ static s32 ixgbe_acquire_swfw_sync_X550em(struct ixgbe_hw *hw, u32 mask) { s32 status; status = ixgbe_acquire_swfw_sync_X540(hw, mask); if (status) return status; if (mask & IXGBE_GSSR_I2C_MASK) ixgbe_set_mux(hw, 1); return 0; } /** * ixgbe_release_swfw_sync_X550em - Release SWFW semaphore * @hw: pointer to hardware structure * @mask: Mask to specify which semaphore to release * * Releases the SWFW semaphore and sets the I2C MUX */ static void ixgbe_release_swfw_sync_X550em(struct ixgbe_hw *hw, u32 mask) { if (mask & IXGBE_GSSR_I2C_MASK) ixgbe_set_mux(hw, 0); ixgbe_release_swfw_sync_X540(hw, mask); } /** * ixgbe_acquire_swfw_sync_x550em_a - Acquire SWFW semaphore * @hw: pointer to hardware structure * @mask: Mask to specify which semaphore to acquire * * Acquires the SWFW semaphore and get the shared PHY token as needed */ static s32 ixgbe_acquire_swfw_sync_x550em_a(struct ixgbe_hw *hw, u32 mask) { u32 hmask = mask & ~IXGBE_GSSR_TOKEN_SM; int retries = FW_PHY_TOKEN_RETRIES; s32 status; while (--retries) { status = 0; if (hmask) status = ixgbe_acquire_swfw_sync_X540(hw, hmask); if (status) return status; if (!(mask & IXGBE_GSSR_TOKEN_SM)) return 0; status = ixgbe_get_phy_token(hw); if (!status) return 0; if (hmask) ixgbe_release_swfw_sync_X540(hw, hmask); if (status != IXGBE_ERR_TOKEN_RETRY) return status; msleep(FW_PHY_TOKEN_DELAY); } return status; } /** * ixgbe_release_swfw_sync_x550em_a - Release SWFW semaphore * @hw: pointer to hardware structure * @mask: Mask to specify which semaphore to release * * Release the SWFW semaphore and puts the shared PHY token as needed */ static void ixgbe_release_swfw_sync_x550em_a(struct ixgbe_hw *hw, u32 mask) { u32 hmask = mask & ~IXGBE_GSSR_TOKEN_SM; if (mask & IXGBE_GSSR_TOKEN_SM) ixgbe_put_phy_token(hw); if (hmask) ixgbe_release_swfw_sync_X540(hw, hmask); } /** * ixgbe_read_phy_reg_x550a - Reads specified PHY register * @hw: pointer to hardware structure * @reg_addr: 32 bit address of PHY register to read * @phy_data: Pointer to read data from PHY register * * Reads a value from a specified PHY register using the SWFW lock and PHY * Token. The PHY Token is needed since the MDIO is shared between to MAC * instances. */ static s32 ixgbe_read_phy_reg_x550a(struct ixgbe_hw *hw, u32 reg_addr, u32 device_type, u16 *phy_data) { u32 mask = hw->phy.phy_semaphore_mask | IXGBE_GSSR_TOKEN_SM; s32 status; if (hw->mac.ops.acquire_swfw_sync(hw, mask)) return IXGBE_ERR_SWFW_SYNC; status = hw->phy.ops.read_reg_mdi(hw, reg_addr, device_type, phy_data); hw->mac.ops.release_swfw_sync(hw, mask); return status; } /** * ixgbe_write_phy_reg_x550a - Writes specified PHY register * @hw: pointer to hardware structure * @reg_addr: 32 bit PHY register to write * @device_type: 5 bit device type * @phy_data: Data to write to the PHY register * * Writes a value to specified PHY register using the SWFW lock and PHY Token. * The PHY Token is needed since the MDIO is shared between to MAC instances. */ static s32 ixgbe_write_phy_reg_x550a(struct ixgbe_hw *hw, u32 reg_addr, u32 device_type, u16 phy_data) { u32 mask = hw->phy.phy_semaphore_mask | IXGBE_GSSR_TOKEN_SM; s32 status; if (hw->mac.ops.acquire_swfw_sync(hw, mask)) return IXGBE_ERR_SWFW_SYNC; status = ixgbe_write_phy_reg_mdi(hw, reg_addr, device_type, phy_data); hw->mac.ops.release_swfw_sync(hw, mask); return status; } #define X550_COMMON_MAC \ .init_hw = &ixgbe_init_hw_generic, \ .start_hw = &ixgbe_start_hw_X540, \ .clear_hw_cntrs = &ixgbe_clear_hw_cntrs_generic, \ .enable_rx_dma = &ixgbe_enable_rx_dma_generic, \ .get_mac_addr = &ixgbe_get_mac_addr_generic, \ .get_device_caps = &ixgbe_get_device_caps_generic, \ .stop_adapter = &ixgbe_stop_adapter_generic, \ .set_lan_id = &ixgbe_set_lan_id_multi_port_pcie, \ .read_analog_reg8 = NULL, \ .write_analog_reg8 = NULL, \ .set_rxpba = &ixgbe_set_rxpba_generic, \ .check_link = &ixgbe_check_mac_link_generic, \ .blink_led_start = &ixgbe_blink_led_start_X540, \ .blink_led_stop = &ixgbe_blink_led_stop_X540, \ .set_rar = &ixgbe_set_rar_generic, \ .clear_rar = &ixgbe_clear_rar_generic, \ .set_vmdq = &ixgbe_set_vmdq_generic, \ .set_vmdq_san_mac = &ixgbe_set_vmdq_san_mac_generic, \ .clear_vmdq = &ixgbe_clear_vmdq_generic, \ .init_rx_addrs = &ixgbe_init_rx_addrs_generic, \ .update_mc_addr_list = &ixgbe_update_mc_addr_list_generic, \ .enable_mc = &ixgbe_enable_mc_generic, \ .disable_mc = &ixgbe_disable_mc_generic, \ .clear_vfta = &ixgbe_clear_vfta_generic, \ .set_vfta = &ixgbe_set_vfta_generic, \ .fc_enable = &ixgbe_fc_enable_generic, \ .set_fw_drv_ver = &ixgbe_set_fw_drv_ver_generic, \ .init_uta_tables = &ixgbe_init_uta_tables_generic, \ .set_mac_anti_spoofing = &ixgbe_set_mac_anti_spoofing, \ .set_vlan_anti_spoofing = &ixgbe_set_vlan_anti_spoofing, \ .set_source_address_pruning = \ &ixgbe_set_source_address_pruning_X550, \ .set_ethertype_anti_spoofing = \ &ixgbe_set_ethertype_anti_spoofing_X550, \ .disable_rx_buff = &ixgbe_disable_rx_buff_generic, \ .enable_rx_buff = &ixgbe_enable_rx_buff_generic, \ .get_thermal_sensor_data = NULL, \ .init_thermal_sensor_thresh = NULL, \ .enable_rx = &ixgbe_enable_rx_generic, \ .disable_rx = &ixgbe_disable_rx_x550, \ static const struct ixgbe_mac_operations mac_ops_X550 = { X550_COMMON_MAC .led_on = ixgbe_led_on_generic, .led_off = ixgbe_led_off_generic, .init_led_link_act = ixgbe_init_led_link_act_generic, .reset_hw = &ixgbe_reset_hw_X540, .get_media_type = &ixgbe_get_media_type_X540, .get_san_mac_addr = &ixgbe_get_san_mac_addr_generic, .get_wwn_prefix = &ixgbe_get_wwn_prefix_generic, .setup_link = &ixgbe_setup_mac_link_X540, .get_link_capabilities = &ixgbe_get_copper_link_capabilities_generic, .get_bus_info = &ixgbe_get_bus_info_generic, .setup_sfp = NULL, .acquire_swfw_sync = &ixgbe_acquire_swfw_sync_X540, .release_swfw_sync = &ixgbe_release_swfw_sync_X540, .init_swfw_sync = &ixgbe_init_swfw_sync_X540, .prot_autoc_read = prot_autoc_read_generic, .prot_autoc_write = prot_autoc_write_generic, .setup_fc = ixgbe_setup_fc_generic, .fc_autoneg = ixgbe_fc_autoneg, }; static const struct ixgbe_mac_operations mac_ops_X550EM_x = { X550_COMMON_MAC .led_on = ixgbe_led_on_t_x550em, .led_off = ixgbe_led_off_t_x550em, .init_led_link_act = ixgbe_init_led_link_act_generic, .reset_hw = &ixgbe_reset_hw_X550em, .get_media_type = &ixgbe_get_media_type_X550em, .get_san_mac_addr = NULL, .get_wwn_prefix = NULL, .setup_link = &ixgbe_setup_mac_link_X540, .get_link_capabilities = &ixgbe_get_link_capabilities_X550em, .get_bus_info = &ixgbe_get_bus_info_X550em, .setup_sfp = ixgbe_setup_sfp_modules_X550em, .acquire_swfw_sync = &ixgbe_acquire_swfw_sync_X550em, .release_swfw_sync = &ixgbe_release_swfw_sync_X550em, .init_swfw_sync = &ixgbe_init_swfw_sync_X540, .setup_fc = NULL, /* defined later */ .fc_autoneg = ixgbe_fc_autoneg, .read_iosf_sb_reg = ixgbe_read_iosf_sb_reg_x550, .write_iosf_sb_reg = ixgbe_write_iosf_sb_reg_x550, }; static struct ixgbe_mac_operations mac_ops_x550em_a = { X550_COMMON_MAC .led_on = ixgbe_led_on_t_x550em, .led_off = ixgbe_led_off_t_x550em, .init_led_link_act = ixgbe_init_led_link_act_generic, .reset_hw = ixgbe_reset_hw_X550em, .get_media_type = ixgbe_get_media_type_X550em, .get_san_mac_addr = NULL, .get_wwn_prefix = NULL, .setup_link = NULL, /* defined later */ .get_link_capabilities = ixgbe_get_link_capabilities_X550em, .get_bus_info = ixgbe_get_bus_info_X550em, .setup_sfp = ixgbe_setup_sfp_modules_X550em, .acquire_swfw_sync = ixgbe_acquire_swfw_sync_x550em_a, .release_swfw_sync = ixgbe_release_swfw_sync_x550em_a, .setup_fc = ixgbe_setup_fc_x550em, .fc_autoneg = ixgbe_fc_autoneg, .read_iosf_sb_reg = ixgbe_read_iosf_sb_reg_x550a, .write_iosf_sb_reg = ixgbe_write_iosf_sb_reg_x550a, }; #define X550_COMMON_EEP \ .read = &ixgbe_read_ee_hostif_X550, \ .read_buffer = &ixgbe_read_ee_hostif_buffer_X550, \ .write = &ixgbe_write_ee_hostif_X550, \ .write_buffer = &ixgbe_write_ee_hostif_buffer_X550, \ .validate_checksum = &ixgbe_validate_eeprom_checksum_X550, \ .update_checksum = &ixgbe_update_eeprom_checksum_X550, \ .calc_checksum = &ixgbe_calc_eeprom_checksum_X550, \ static const struct ixgbe_eeprom_operations eeprom_ops_X550 = { X550_COMMON_EEP .init_params = &ixgbe_init_eeprom_params_X550, }; static const struct ixgbe_eeprom_operations eeprom_ops_X550EM_x = { X550_COMMON_EEP .init_params = &ixgbe_init_eeprom_params_X540, }; #define X550_COMMON_PHY \ .identify_sfp = &ixgbe_identify_module_generic, \ .reset = NULL, \ .setup_link_speed = &ixgbe_setup_phy_link_speed_generic, \ .read_i2c_byte = &ixgbe_read_i2c_byte_generic, \ .write_i2c_byte = &ixgbe_write_i2c_byte_generic, \ .read_i2c_sff8472 = &ixgbe_read_i2c_sff8472_generic, \ .read_i2c_eeprom = &ixgbe_read_i2c_eeprom_generic, \ .write_i2c_eeprom = &ixgbe_write_i2c_eeprom_generic, \ .setup_link = &ixgbe_setup_phy_link_generic, \ .set_phy_power = NULL, \ .check_overtemp = &ixgbe_tn_check_overtemp, \ .get_firmware_version = &ixgbe_get_phy_firmware_version_generic, static const struct ixgbe_phy_operations phy_ops_X550 = { X550_COMMON_PHY .init = NULL, .identify = &ixgbe_identify_phy_generic, .read_reg = &ixgbe_read_phy_reg_generic, .write_reg = &ixgbe_write_phy_reg_generic, }; static const struct ixgbe_phy_operations phy_ops_X550EM_x = { X550_COMMON_PHY .init = &ixgbe_init_phy_ops_X550em, .identify = &ixgbe_identify_phy_x550em, .read_reg = &ixgbe_read_phy_reg_generic, .write_reg = &ixgbe_write_phy_reg_generic, }; static const struct ixgbe_phy_operations phy_ops_x550em_a = { X550_COMMON_PHY .init = &ixgbe_init_phy_ops_X550em, .identify = &ixgbe_identify_phy_x550em, .read_reg = &ixgbe_read_phy_reg_x550a, .write_reg = &ixgbe_write_phy_reg_x550a, .read_reg_mdi = &ixgbe_read_phy_reg_mdi, .write_reg_mdi = &ixgbe_write_phy_reg_mdi, }; static const struct ixgbe_link_operations link_ops_x550em_x = { .read_link = &ixgbe_read_i2c_combined_generic, .read_link_unlocked = &ixgbe_read_i2c_combined_generic_unlocked, .write_link = &ixgbe_write_i2c_combined_generic, .write_link_unlocked = &ixgbe_write_i2c_combined_generic_unlocked, }; static const u32 ixgbe_mvals_X550[IXGBE_MVALS_IDX_LIMIT] = { IXGBE_MVALS_INIT(X550) }; static const u32 ixgbe_mvals_X550EM_x[IXGBE_MVALS_IDX_LIMIT] = { IXGBE_MVALS_INIT(X550EM_x) }; static const u32 ixgbe_mvals_x550em_a[IXGBE_MVALS_IDX_LIMIT] = { IXGBE_MVALS_INIT(X550EM_a) }; const struct ixgbe_info ixgbe_X550_info = { .mac = ixgbe_mac_X550, .get_invariants = &ixgbe_get_invariants_X540, .mac_ops = &mac_ops_X550, .eeprom_ops = &eeprom_ops_X550, .phy_ops = &phy_ops_X550, .mbx_ops = &mbx_ops_generic, .mvals = ixgbe_mvals_X550, }; const struct ixgbe_info ixgbe_X550EM_x_info = { .mac = ixgbe_mac_X550EM_x, .get_invariants = &ixgbe_get_invariants_X550_x, .mac_ops = &mac_ops_X550EM_x, .eeprom_ops = &eeprom_ops_X550EM_x, .phy_ops = &phy_ops_X550EM_x, .mbx_ops = &mbx_ops_generic, .mvals = ixgbe_mvals_X550EM_x, .link_ops = &link_ops_x550em_x, }; const struct ixgbe_info ixgbe_x550em_a_info = { .mac = ixgbe_mac_x550em_a, .get_invariants = &ixgbe_get_invariants_X550_a, .mac_ops = &mac_ops_x550em_a, .eeprom_ops = &eeprom_ops_X550EM_x, .phy_ops = &phy_ops_x550em_a, .mbx_ops = &mbx_ops_generic, .mvals = ixgbe_mvals_x550em_a, };