--- zzzz-none-000/linux-3.10.107/drivers/net/ethernet/intel/ixgbe/ixgbe_82599.c 2017-06-27 09:49:32.000000000 +0000 +++ scorpion-7490-727/linux-3.10.107/drivers/net/ethernet/intel/ixgbe/ixgbe_82599.c 2021-02-04 17:41:59.000000000 +0000 @@ -1,7 +1,7 @@ /******************************************************************************* Intel 10 Gigabit PCI Express Linux driver - Copyright(c) 1999 - 2013 Intel Corporation. + Copyright(c) 1999 - 2015 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, @@ -20,6 +20,7 @@ the file called "COPYING". Contact Information: + Linux NICS e1000-devel Mailing List Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497 @@ -43,27 +44,33 @@ static void ixgbe_disable_tx_laser_multispeed_fiber(struct ixgbe_hw *hw); static void ixgbe_enable_tx_laser_multispeed_fiber(struct ixgbe_hw *hw); static void ixgbe_flap_tx_laser_multispeed_fiber(struct ixgbe_hw *hw); -static s32 ixgbe_setup_mac_link_multispeed_fiber(struct ixgbe_hw *hw, - ixgbe_link_speed speed, - bool autoneg_wait_to_complete); +static void +ixgbe_set_hard_rate_select_speed(struct ixgbe_hw *, ixgbe_link_speed); static s32 ixgbe_setup_mac_link_smartspeed(struct ixgbe_hw *hw, - ixgbe_link_speed speed, - bool autoneg_wait_to_complete); + ixgbe_link_speed speed, + bool autoneg_wait_to_complete); +static void ixgbe_stop_mac_link_on_d3_82599(struct ixgbe_hw *hw); static s32 ixgbe_start_mac_link_82599(struct ixgbe_hw *hw, bool autoneg_wait_to_complete); static s32 ixgbe_setup_mac_link_82599(struct ixgbe_hw *hw, - ixgbe_link_speed speed, - bool autoneg_wait_to_complete); + ixgbe_link_speed speed, + bool autoneg_wait_to_complete); static s32 ixgbe_setup_copper_link_82599(struct ixgbe_hw *hw, - ixgbe_link_speed speed, - bool autoneg_wait_to_complete); + ixgbe_link_speed speed, + bool autoneg_wait_to_complete); static s32 ixgbe_verify_fw_version_82599(struct ixgbe_hw *hw); +static s32 ixgbe_read_i2c_byte_82599(struct ixgbe_hw *hw, u8 byte_offset, + u8 dev_addr, u8 *data); +static s32 ixgbe_write_i2c_byte_82599(struct ixgbe_hw *hw, u8 byte_offset, + u8 dev_addr, u8 data); +static s32 ixgbe_reset_pipeline_82599(struct ixgbe_hw *hw); +static bool ixgbe_verify_lesm_fw_enabled_82599(struct ixgbe_hw *hw); -static bool ixgbe_mng_enabled(struct ixgbe_hw *hw) +bool ixgbe_mng_enabled(struct ixgbe_hw *hw) { u32 fwsm, manc, factps; - fwsm = IXGBE_READ_REG(hw, IXGBE_FWSM); + fwsm = IXGBE_READ_REG(hw, IXGBE_FWSM(hw)); if ((fwsm & IXGBE_FWSM_MODE_MASK) != IXGBE_FWSM_FW_MODE_PT) return false; @@ -71,7 +78,7 @@ if (!(manc & IXGBE_MANC_RCV_TCO_EN)) return false; - factps = IXGBE_READ_REG(hw, IXGBE_FACTPS); + factps = IXGBE_READ_REG(hw, IXGBE_FACTPS(hw)); if (factps & IXGBE_FACTPS_MNGCG) return false; @@ -86,11 +93,11 @@ * and MNG not enabled */ if ((mac->ops.get_media_type(hw) == ixgbe_media_type_fiber) && - !hw->mng_fw_enabled) { + !ixgbe_mng_enabled(hw)) { mac->ops.disable_tx_laser = - &ixgbe_disable_tx_laser_multispeed_fiber; + &ixgbe_disable_tx_laser_multispeed_fiber; mac->ops.enable_tx_laser = - &ixgbe_enable_tx_laser_multispeed_fiber; + &ixgbe_enable_tx_laser_multispeed_fiber; mac->ops.flap_tx_laser = &ixgbe_flap_tx_laser_multispeed_fiber; } else { mac->ops.disable_tx_laser = NULL; @@ -101,6 +108,9 @@ if (hw->phy.multispeed_fiber) { /* Set up dual speed SFP+ support */ mac->ops.setup_link = &ixgbe_setup_mac_link_multispeed_fiber; + mac->ops.setup_mac_link = ixgbe_setup_mac_link_82599; + mac->ops.set_rate_select_speed = + ixgbe_set_hard_rate_select_speed; } else { if ((mac->ops.get_media_type(hw) == ixgbe_media_type_backplane) && @@ -115,9 +125,8 @@ static s32 ixgbe_setup_sfp_modules_82599(struct ixgbe_hw *hw) { - s32 ret_val = 0; + s32 ret_val; u16 list_offset, data_offset, data_value; - bool got_lock = false; if (hw->phy.sfp_type != ixgbe_sfp_type_unknown) { ixgbe_init_mac_link_ops_82599(hw); @@ -125,23 +134,23 @@ hw->phy.ops.reset = NULL; ret_val = ixgbe_get_sfp_init_sequence_offsets(hw, &list_offset, - &data_offset); - if (ret_val != 0) - goto setup_sfp_out; + &data_offset); + if (ret_val) + return ret_val; /* PHY config will finish before releasing the semaphore */ ret_val = hw->mac.ops.acquire_swfw_sync(hw, - IXGBE_GSSR_MAC_CSR_SM); - if (ret_val != 0) { - ret_val = IXGBE_ERR_SWFW_SYNC; - goto setup_sfp_out; - } + IXGBE_GSSR_MAC_CSR_SM); + if (ret_val) + return IXGBE_ERR_SWFW_SYNC; - hw->eeprom.ops.read(hw, ++data_offset, &data_value); + if (hw->eeprom.ops.read(hw, ++data_offset, &data_value)) + goto setup_sfp_err; while (data_value != 0xffff) { IXGBE_WRITE_REG(hw, IXGBE_CORECTL, data_value); IXGBE_WRITE_FLUSH(hw); - hw->eeprom.ops.read(hw, ++data_offset, &data_value); + if (hw->eeprom.ops.read(hw, ++data_offset, &data_value)) + goto setup_sfp_err; } /* Release the semaphore */ @@ -153,39 +162,103 @@ usleep_range(hw->eeprom.semaphore_delay * 1000, hw->eeprom.semaphore_delay * 2000); - /* Need SW/FW semaphore around AUTOC writes if LESM on, - * likewise reset_pipeline requires lock as it also writes - * AUTOC. - */ - if (ixgbe_verify_lesm_fw_enabled_82599(hw)) { - ret_val = hw->mac.ops.acquire_swfw_sync(hw, - IXGBE_GSSR_MAC_CSR_SM); - if (ret_val) - goto setup_sfp_out; - - got_lock = true; - } - /* Restart DSP and set SFI mode */ - IXGBE_WRITE_REG(hw, IXGBE_AUTOC, ((hw->mac.orig_autoc) | - IXGBE_AUTOC_LMS_10G_SERIAL)); - hw->mac.cached_autoc = IXGBE_READ_REG(hw, IXGBE_AUTOC); - ret_val = ixgbe_reset_pipeline_82599(hw); - - if (got_lock) { - hw->mac.ops.release_swfw_sync(hw, - IXGBE_GSSR_MAC_CSR_SM); - got_lock = false; - } + ret_val = hw->mac.ops.prot_autoc_write(hw, + hw->mac.orig_autoc | IXGBE_AUTOC_LMS_10G_SERIAL, + false); if (ret_val) { hw_dbg(hw, " sfp module setup not complete\n"); - ret_val = IXGBE_ERR_SFP_SETUP_NOT_COMPLETE; - goto setup_sfp_out; + return IXGBE_ERR_SFP_SETUP_NOT_COMPLETE; } } -setup_sfp_out: + return 0; + +setup_sfp_err: + /* Release the semaphore */ + hw->mac.ops.release_swfw_sync(hw, IXGBE_GSSR_MAC_CSR_SM); + /* Delay obtaining semaphore again to allow FW access, + * semaphore_delay is in ms usleep_range needs us. + */ + usleep_range(hw->eeprom.semaphore_delay * 1000, + hw->eeprom.semaphore_delay * 2000); + hw_err(hw, "eeprom read at offset %d failed\n", data_offset); + return IXGBE_ERR_SFP_SETUP_NOT_COMPLETE; +} + +/** + * prot_autoc_read_82599 - Hides MAC differences needed for AUTOC read + * @hw: pointer to hardware structure + * @locked: Return the if we locked for this read. + * @reg_val: Value we read from AUTOC + * + * For this part (82599) we need to wrap read-modify-writes with a possible + * FW/SW lock. It is assumed this lock will be freed with the next + * prot_autoc_write_82599(). Note, that locked can only be true in cases + * where this function doesn't return an error. + **/ +static s32 prot_autoc_read_82599(struct ixgbe_hw *hw, bool *locked, + u32 *reg_val) +{ + s32 ret_val; + + *locked = false; + /* If LESM is on then we need to hold the SW/FW semaphore. */ + if (ixgbe_verify_lesm_fw_enabled_82599(hw)) { + ret_val = hw->mac.ops.acquire_swfw_sync(hw, + IXGBE_GSSR_MAC_CSR_SM); + if (ret_val) + return IXGBE_ERR_SWFW_SYNC; + + *locked = true; + } + + *reg_val = IXGBE_READ_REG(hw, IXGBE_AUTOC); + return 0; +} + +/** + * prot_autoc_write_82599 - Hides MAC differences needed for AUTOC write + * @hw: pointer to hardware structure + * @reg_val: value to write to AUTOC + * @locked: bool to indicate whether the SW/FW lock was already taken by + * previous proc_autoc_read_82599. + * + * This part (82599) may need to hold a the SW/FW lock around all writes to + * AUTOC. Likewise after a write we need to do a pipeline reset. + **/ +static s32 prot_autoc_write_82599(struct ixgbe_hw *hw, u32 autoc, bool locked) +{ + s32 ret_val = 0; + + /* Blocked by MNG FW so bail */ + if (ixgbe_check_reset_blocked(hw)) + goto out; + + /* We only need to get the lock if: + * - We didn't do it already (in the read part of a read-modify-write) + * - LESM is enabled. + */ + if (!locked && ixgbe_verify_lesm_fw_enabled_82599(hw)) { + ret_val = hw->mac.ops.acquire_swfw_sync(hw, + IXGBE_GSSR_MAC_CSR_SM); + if (ret_val) + return IXGBE_ERR_SWFW_SYNC; + + locked = true; + } + + IXGBE_WRITE_REG(hw, IXGBE_AUTOC, autoc); + ret_val = ixgbe_reset_pipeline_82599(hw); + +out: + /* Free the SW/FW semaphore as we either grabbed it here or + * already had it when this function was called. + */ + if (locked) + hw->mac.ops.release_swfw_sync(hw, IXGBE_GSSR_MAC_CSR_SM); + return ret_val; } @@ -198,6 +271,7 @@ mac->mcft_size = IXGBE_82599_MC_TBL_SIZE; mac->vft_size = IXGBE_82599_VFT_TBL_SIZE; mac->num_rar_entries = IXGBE_82599_RAR_ENTRIES; + mac->rx_pb_size = IXGBE_82599_RX_PB_SIZE; mac->max_rx_queues = IXGBE_82599_MAX_RX_QUEUES; mac->max_tx_queues = IXGBE_82599_MAX_TX_QUEUES; mac->max_msix_vectors = ixgbe_get_pcie_msix_count_generic(hw); @@ -218,7 +292,26 @@ { struct ixgbe_mac_info *mac = &hw->mac; struct ixgbe_phy_info *phy = &hw->phy; - s32 ret_val = 0; + s32 ret_val; + u32 esdp; + + if (hw->device_id == IXGBE_DEV_ID_82599_QSFP_SF_QP) { + /* Store flag indicating I2C bus access control unit. */ + hw->phy.qsfp_shared_i2c_bus = true; + + /* Initialize access to QSFP+ I2C bus */ + esdp = IXGBE_READ_REG(hw, IXGBE_ESDP); + esdp |= IXGBE_ESDP_SDP0_DIR; + esdp &= ~IXGBE_ESDP_SDP1_DIR; + esdp &= ~IXGBE_ESDP_SDP0; + esdp &= ~IXGBE_ESDP_SDP0_NATIVE; + esdp &= ~IXGBE_ESDP_SDP1_NATIVE; + IXGBE_WRITE_REG(hw, IXGBE_ESDP, esdp); + IXGBE_WRITE_FLUSH(hw); + + phy->ops.read_i2c_byte = &ixgbe_read_i2c_byte_82599; + phy->ops.write_i2c_byte = &ixgbe_write_i2c_byte_82599; + } /* Identify the PHY or SFP module */ ret_val = phy->ops.identify(hw); @@ -239,7 +332,7 @@ phy->ops.check_link = &ixgbe_check_phy_link_tnx; phy->ops.setup_link = &ixgbe_setup_phy_link_tnx; phy->ops.get_firmware_version = - &ixgbe_get_phy_firmware_version_tnx; + &ixgbe_get_phy_firmware_version_tnx; break; default: break; @@ -257,10 +350,9 @@ * Determines the link capabilities by reading the AUTOC register. **/ static s32 ixgbe_get_link_capabilities_82599(struct ixgbe_hw *hw, - ixgbe_link_speed *speed, + ixgbe_link_speed *speed, bool *autoneg) { - s32 status = 0; u32 autoc = 0; /* Determine 1G link capabilities off of SFP+ type */ @@ -272,7 +364,7 @@ hw->phy.sfp_type == ixgbe_sfp_type_1g_sx_core1) { *speed = IXGBE_LINK_SPEED_1GB_FULL; *autoneg = true; - goto out; + return 0; } /* @@ -335,19 +427,21 @@ break; default: - status = IXGBE_ERR_LINK_SETUP; - goto out; - break; + return IXGBE_ERR_LINK_SETUP; } if (hw->phy.multispeed_fiber) { *speed |= IXGBE_LINK_SPEED_10GB_FULL | - IXGBE_LINK_SPEED_1GB_FULL; - *autoneg = true; + IXGBE_LINK_SPEED_1GB_FULL; + + /* QSFP must not enable auto-negotiation */ + if (hw->phy.media_type == ixgbe_media_type_fiber_qsfp) + *autoneg = false; + else + *autoneg = true; } -out: - return status; + return 0; } /** @@ -358,14 +452,12 @@ **/ static enum ixgbe_media_type ixgbe_get_media_type_82599(struct ixgbe_hw *hw) { - enum ixgbe_media_type media_type; - /* Detect if there is a copper PHY attached. */ switch (hw->phy.type) { case ixgbe_phy_cu_unknown: case ixgbe_phy_tn: - media_type = ixgbe_media_type_copper; - goto out; + return ixgbe_media_type_copper; + default: break; } @@ -378,31 +470,53 @@ case IXGBE_DEV_ID_82599_BACKPLANE_FCOE: case IXGBE_DEV_ID_82599_XAUI_LOM: /* Default device ID is mezzanine card KX/KX4 */ - media_type = ixgbe_media_type_backplane; - break; + return ixgbe_media_type_backplane; + case IXGBE_DEV_ID_82599_SFP: case IXGBE_DEV_ID_82599_SFP_FCOE: case IXGBE_DEV_ID_82599_SFP_EM: case IXGBE_DEV_ID_82599_SFP_SF2: case IXGBE_DEV_ID_82599_SFP_SF_QP: case IXGBE_DEV_ID_82599EN_SFP: - media_type = ixgbe_media_type_fiber; - break; + return ixgbe_media_type_fiber; + case IXGBE_DEV_ID_82599_CX4: - media_type = ixgbe_media_type_cx4; - break; + return ixgbe_media_type_cx4; + case IXGBE_DEV_ID_82599_T3_LOM: - media_type = ixgbe_media_type_copper; - break; + return ixgbe_media_type_copper; + case IXGBE_DEV_ID_82599_LS: - media_type = ixgbe_media_type_fiber_lco; - break; + return ixgbe_media_type_fiber_lco; + + case IXGBE_DEV_ID_82599_QSFP_SF_QP: + return ixgbe_media_type_fiber_qsfp; + default: - media_type = ixgbe_media_type_unknown; - break; + return ixgbe_media_type_unknown; + } +} + +/** + * ixgbe_stop_mac_link_on_d3_82599 - Disables link on D3 + * @hw: pointer to hardware structure + * + * Disables link, should be called during D3 power down sequence. + * + **/ +static void ixgbe_stop_mac_link_on_d3_82599(struct ixgbe_hw *hw) +{ + u32 autoc2_reg; + u16 ee_ctrl_2 = 0; + + hw->eeprom.ops.read(hw, IXGBE_EEPROM_CTRL_2, &ee_ctrl_2); + + if (!ixgbe_mng_present(hw) && !hw->wol_enabled && + ee_ctrl_2 & IXGBE_EEPROM_CCD_BIT) { + autoc2_reg = IXGBE_READ_REG(hw, IXGBE_AUTOC2); + autoc2_reg |= IXGBE_AUTOC2_LINK_DISABLE_ON_D3_MASK; + IXGBE_WRITE_REG(hw, IXGBE_AUTOC2, autoc2_reg); } -out: - return media_type; } /** @@ -414,7 +528,7 @@ * Restarts the link. Performs autonegotiation if needed. **/ static s32 ixgbe_start_mac_link_82599(struct ixgbe_hw *hw, - bool autoneg_wait_to_complete) + bool autoneg_wait_to_complete) { u32 autoc_reg; u32 links_reg; @@ -426,7 +540,7 @@ status = hw->mac.ops.acquire_swfw_sync(hw, IXGBE_GSSR_MAC_CSR_SM); if (status) - goto out; + return status; got_lock = true; } @@ -463,7 +577,6 @@ /* Add delay to filter out noises during initial link setup */ msleep(50); -out: return status; } @@ -479,6 +592,10 @@ { u32 esdp_reg = IXGBE_READ_REG(hw, IXGBE_ESDP); + /* Blocked by MNG FW so bail */ + if (ixgbe_check_reset_blocked(hw)) + return; + /* Disable tx laser; allow 100us to go dark per spec */ esdp_reg |= IXGBE_ESDP_SDP3; IXGBE_WRITE_REG(hw, IXGBE_ESDP, esdp_reg); @@ -519,6 +636,10 @@ **/ static void ixgbe_flap_tx_laser_multispeed_fiber(struct ixgbe_hw *hw) { + /* Blocked by MNG FW so bail */ + if (ixgbe_check_reset_blocked(hw)) + return; + if (hw->mac.autotry_restart) { ixgbe_disable_tx_laser_multispeed_fiber(hw); ixgbe_enable_tx_laser_multispeed_fiber(hw); @@ -527,156 +648,32 @@ } /** - * ixgbe_setup_mac_link_multispeed_fiber - Set MAC link speed - * @hw: pointer to hardware structure - * @speed: new link speed - * @autoneg_wait_to_complete: true when waiting for completion is needed + * ixgbe_set_hard_rate_select_speed - Set module link speed + * @hw: pointer to hardware structure + * @speed: link speed to set * - * Set the link speed in the AUTOC register and restarts link. - **/ -static s32 ixgbe_setup_mac_link_multispeed_fiber(struct ixgbe_hw *hw, - ixgbe_link_speed speed, - bool autoneg_wait_to_complete) + * Set module link speed via RS0/RS1 rate select pins. + */ +static void +ixgbe_set_hard_rate_select_speed(struct ixgbe_hw *hw, ixgbe_link_speed speed) { - s32 status = 0; - ixgbe_link_speed link_speed = IXGBE_LINK_SPEED_UNKNOWN; - ixgbe_link_speed highest_link_speed = IXGBE_LINK_SPEED_UNKNOWN; - u32 speedcnt = 0; u32 esdp_reg = IXGBE_READ_REG(hw, IXGBE_ESDP); - u32 i = 0; - bool link_up = false; - bool autoneg = false; - - /* Mask off requested but non-supported speeds */ - status = hw->mac.ops.get_link_capabilities(hw, &link_speed, - &autoneg); - if (status != 0) - return status; - - speed &= link_speed; - - /* - * Try each speed one by one, highest priority first. We do this in - * software because 10gb fiber doesn't support speed autonegotiation. - */ - if (speed & IXGBE_LINK_SPEED_10GB_FULL) { - speedcnt++; - highest_link_speed = IXGBE_LINK_SPEED_10GB_FULL; - - /* If we already have link at this speed, just jump out */ - status = hw->mac.ops.check_link(hw, &link_speed, &link_up, - false); - if (status != 0) - return status; - - if ((link_speed == IXGBE_LINK_SPEED_10GB_FULL) && link_up) - goto out; - /* Set the module link speed */ + switch (speed) { + case IXGBE_LINK_SPEED_10GB_FULL: esdp_reg |= (IXGBE_ESDP_SDP5_DIR | IXGBE_ESDP_SDP5); - IXGBE_WRITE_REG(hw, IXGBE_ESDP, esdp_reg); - IXGBE_WRITE_FLUSH(hw); - - /* Allow module to change analog characteristics (1G->10G) */ - msleep(40); - - status = ixgbe_setup_mac_link_82599(hw, - IXGBE_LINK_SPEED_10GB_FULL, - autoneg_wait_to_complete); - if (status != 0) - return status; - - /* Flap the tx laser if it has not already been done */ - if (hw->mac.ops.flap_tx_laser) - hw->mac.ops.flap_tx_laser(hw); - - /* - * Wait for the controller to acquire link. Per IEEE 802.3ap, - * Section 73.10.2, we may have to wait up to 500ms if KR is - * attempted. 82599 uses the same timing for 10g SFI. - */ - for (i = 0; i < 5; i++) { - /* Wait for the link partner to also set speed */ - msleep(100); - - /* If we have link, just jump out */ - status = hw->mac.ops.check_link(hw, &link_speed, - &link_up, false); - if (status != 0) - return status; - - if (link_up) - goto out; - } - } - - if (speed & IXGBE_LINK_SPEED_1GB_FULL) { - speedcnt++; - if (highest_link_speed == IXGBE_LINK_SPEED_UNKNOWN) - highest_link_speed = IXGBE_LINK_SPEED_1GB_FULL; - - /* If we already have link at this speed, just jump out */ - status = hw->mac.ops.check_link(hw, &link_speed, &link_up, - false); - if (status != 0) - return status; - - if ((link_speed == IXGBE_LINK_SPEED_1GB_FULL) && link_up) - goto out; - - /* Set the module link speed */ + break; + case IXGBE_LINK_SPEED_1GB_FULL: esdp_reg &= ~IXGBE_ESDP_SDP5; esdp_reg |= IXGBE_ESDP_SDP5_DIR; - IXGBE_WRITE_REG(hw, IXGBE_ESDP, esdp_reg); - IXGBE_WRITE_FLUSH(hw); - - /* Allow module to change analog characteristics (10G->1G) */ - msleep(40); - - status = ixgbe_setup_mac_link_82599(hw, - IXGBE_LINK_SPEED_1GB_FULL, - autoneg_wait_to_complete); - if (status != 0) - return status; - - /* Flap the tx laser if it has not already been done */ - if (hw->mac.ops.flap_tx_laser) - hw->mac.ops.flap_tx_laser(hw); - - /* Wait for the link partner to also set speed */ - msleep(100); - - /* If we have link, just jump out */ - status = hw->mac.ops.check_link(hw, &link_speed, &link_up, - false); - if (status != 0) - return status; - - if (link_up) - goto out; + break; + default: + hw_dbg(hw, "Invalid fixed module speed\n"); + return; } - /* - * We didn't get link. Configure back to the highest speed we tried, - * (if there was more than one). We call ourselves back with just the - * single highest speed that the user requested. - */ - if (speedcnt > 1) - status = ixgbe_setup_mac_link_multispeed_fiber(hw, - highest_link_speed, - autoneg_wait_to_complete); - -out: - /* Set autoneg_advertised value based on input link speed */ - hw->phy.autoneg_advertised = 0; - - if (speed & IXGBE_LINK_SPEED_10GB_FULL) - hw->phy.autoneg_advertised |= IXGBE_LINK_SPEED_10GB_FULL; - - if (speed & IXGBE_LINK_SPEED_1GB_FULL) - hw->phy.autoneg_advertised |= IXGBE_LINK_SPEED_1GB_FULL; - - return status; + IXGBE_WRITE_REG(hw, IXGBE_ESDP, esdp_reg); + IXGBE_WRITE_FLUSH(hw); } /** @@ -785,8 +782,7 @@ out: if (link_up && (link_speed == IXGBE_LINK_SPEED_1GB_FULL)) - hw_dbg(hw, "Smartspeed has downgraded the link speed from " - "the maximum advertised\n"); + hw_dbg(hw, "Smartspeed has downgraded the link speed from the maximum advertised\n"); return status; } @@ -802,38 +798,37 @@ ixgbe_link_speed speed, bool autoneg_wait_to_complete) { - s32 status = 0; - u32 autoc, pma_pmd_1g, link_mode, start_autoc; + bool autoneg = false; + s32 status; + u32 pma_pmd_1g, link_mode, links_reg, i; u32 autoc2 = IXGBE_READ_REG(hw, IXGBE_AUTOC2); - u32 orig_autoc = 0; u32 pma_pmd_10g_serial = autoc2 & IXGBE_AUTOC2_10G_SERIAL_PMA_PMD_MASK; - u32 links_reg; - u32 i; ixgbe_link_speed link_capabilities = IXGBE_LINK_SPEED_UNKNOWN; - bool got_lock = false; - bool autoneg = false; + + /* holds the value of AUTOC register at this current point in time */ + u32 current_autoc = IXGBE_READ_REG(hw, IXGBE_AUTOC); + /* holds the cached value of AUTOC register */ + u32 orig_autoc = 0; + /* temporary variable used for comparison purposes */ + u32 autoc = current_autoc; /* Check to see if speed passed in is supported. */ status = hw->mac.ops.get_link_capabilities(hw, &link_capabilities, &autoneg); - if (status != 0) - goto out; + if (status) + return status; speed &= link_capabilities; - if (speed == IXGBE_LINK_SPEED_UNKNOWN) { - status = IXGBE_ERR_LINK_SETUP; - goto out; - } + if (speed == IXGBE_LINK_SPEED_UNKNOWN) + return IXGBE_ERR_LINK_SETUP; /* Use stored value (EEPROM defaults) of AUTOC to find KR/KX4 support*/ if (hw->mac.orig_link_settings_stored) - autoc = hw->mac.orig_autoc; + orig_autoc = hw->mac.orig_autoc; else - autoc = IXGBE_READ_REG(hw, IXGBE_AUTOC); + orig_autoc = autoc; - orig_autoc = autoc; - start_autoc = hw->mac.cached_autoc; link_mode = autoc & IXGBE_AUTOC_LMS_MASK; pma_pmd_1g = autoc & IXGBE_AUTOC_1G_PMA_PMD_MASK; @@ -852,8 +847,8 @@ if (speed & IXGBE_LINK_SPEED_1GB_FULL) autoc |= IXGBE_AUTOC_KX_SUPP; } else if ((pma_pmd_1g == IXGBE_AUTOC_1G_SFI) && - (link_mode == IXGBE_AUTOC_LMS_1G_LINK_NO_AN || - link_mode == IXGBE_AUTOC_LMS_1G_AN)) { + (link_mode == IXGBE_AUTOC_LMS_1G_LINK_NO_AN || + link_mode == IXGBE_AUTOC_LMS_1G_AN)) { /* Switch from 1G SFI to 10G SFI if requested */ if ((speed == IXGBE_LINK_SPEED_10GB_FULL) && (pma_pmd_10g_serial == IXGBE_AUTOC2_10G_SFI)) { @@ -861,7 +856,7 @@ autoc |= IXGBE_AUTOC_LMS_10G_SERIAL; } } else if ((pma_pmd_10g_serial == IXGBE_AUTOC2_10G_SFI) && - (link_mode == IXGBE_AUTOC_LMS_10G_SERIAL)) { + (link_mode == IXGBE_AUTOC_LMS_10G_SERIAL)) { /* Switch from 10G SFI to 1G SFI if requested */ if ((speed == IXGBE_LINK_SPEED_1GB_FULL) && (pma_pmd_1g == IXGBE_AUTOC_1G_SFI)) { @@ -873,28 +868,11 @@ } } - if (autoc != start_autoc) { - /* Need SW/FW semaphore around AUTOC writes if LESM is on, - * likewise reset_pipeline requires us to hold this lock as - * it also writes to AUTOC. - */ - if (ixgbe_verify_lesm_fw_enabled_82599(hw)) { - status = hw->mac.ops.acquire_swfw_sync(hw, - IXGBE_GSSR_MAC_CSR_SM); - if (status != 0) - goto out; - - got_lock = true; - } - + if (autoc != current_autoc) { /* Restart link */ - IXGBE_WRITE_REG(hw, IXGBE_AUTOC, autoc); - hw->mac.cached_autoc = autoc; - ixgbe_reset_pipeline_82599(hw); - - if (got_lock) - hw->mac.ops.release_swfw_sync(hw, - IXGBE_GSSR_MAC_CSR_SM); + status = hw->mac.ops.prot_autoc_write(hw, autoc, false); + if (status) + return status; /* Only poll for autoneg to complete if specified to do so */ if (autoneg_wait_to_complete) { @@ -911,9 +889,8 @@ } if (!(links_reg & IXGBE_LINKS_KX_AN_COMP)) { status = - IXGBE_ERR_AUTONEG_NOT_COMPLETE; - hw_dbg(hw, "Autoneg did not " - "complete.\n"); + IXGBE_ERR_AUTONEG_NOT_COMPLETE; + hw_dbg(hw, "Autoneg did not complete.\n"); } } } @@ -922,7 +899,6 @@ msleep(50); } -out: return status; } @@ -935,14 +911,14 @@ * Restarts link on PHY and MAC based on settings passed in. **/ static s32 ixgbe_setup_copper_link_82599(struct ixgbe_hw *hw, - ixgbe_link_speed speed, - bool autoneg_wait_to_complete) + ixgbe_link_speed speed, + bool autoneg_wait_to_complete) { s32 status; /* Setup the PHY according to input speed */ status = hw->phy.ops.setup_link_speed(hw, speed, - autoneg_wait_to_complete); + autoneg_wait_to_complete); /* Set up MAC */ ixgbe_start_mac_link_82599(hw, autoneg_wait_to_complete); @@ -961,14 +937,14 @@ { ixgbe_link_speed link_speed; s32 status; - u32 ctrl, i, autoc2; + u32 ctrl, i, autoc, autoc2; u32 curr_lms; bool link_up = false; /* Call adapter stop to disable tx/rx and clear interrupts */ status = hw->mac.ops.stop_adapter(hw); - if (status != 0) - goto reset_hw_out; + if (status) + return status; /* flush pending Tx transactions */ ixgbe_clear_tx_pending(hw); @@ -979,7 +955,7 @@ status = hw->phy.ops.init(hw); if (status == IXGBE_ERR_SFP_NOT_SUPPORTED) - goto reset_hw_out; + return status; /* Setup SFP module if there is one present. */ if (hw->phy.sfp_setup_needed) { @@ -988,18 +964,14 @@ } if (status == IXGBE_ERR_SFP_NOT_SUPPORTED) - goto reset_hw_out; + return status; /* Reset PHY */ if (hw->phy.reset_disable == false && hw->phy.ops.reset != NULL) hw->phy.ops.reset(hw); /* remember AUTOC from before we reset */ - if (hw->mac.cached_autoc) - curr_lms = hw->mac.cached_autoc & IXGBE_AUTOC_LMS_MASK; - else - curr_lms = IXGBE_READ_REG(hw, IXGBE_AUTOC) & - IXGBE_AUTOC_LMS_MASK; + curr_lms = IXGBE_READ_REG(hw, IXGBE_AUTOC) & IXGBE_AUTOC_LMS_MASK; mac_reset_top: /* @@ -1049,7 +1021,7 @@ * stored off yet. Otherwise restore the stored original * values since the reset operation sets back to defaults. */ - hw->mac.cached_autoc = IXGBE_READ_REG(hw, IXGBE_AUTOC); + autoc = IXGBE_READ_REG(hw, IXGBE_AUTOC); autoc2 = IXGBE_READ_REG(hw, IXGBE_AUTOC2); /* Enable link if disabled in NVM */ @@ -1060,7 +1032,7 @@ } if (hw->mac.orig_link_settings_stored == false) { - hw->mac.orig_autoc = hw->mac.cached_autoc; + hw->mac.orig_autoc = autoc; hw->mac.orig_autoc2 = autoc2; hw->mac.orig_link_settings_stored = true; } else { @@ -1071,41 +1043,25 @@ * Likewise if we support WoL we don't want change the * LMS state either. */ - if ((hw->phy.multispeed_fiber && hw->mng_fw_enabled) || + if ((hw->phy.multispeed_fiber && ixgbe_mng_enabled(hw)) || hw->wol_enabled) hw->mac.orig_autoc = (hw->mac.orig_autoc & ~IXGBE_AUTOC_LMS_MASK) | curr_lms; - if (hw->mac.cached_autoc != hw->mac.orig_autoc) { - /* Need SW/FW semaphore around AUTOC writes if LESM is - * on, likewise reset_pipeline requires us to hold - * this lock as it also writes to AUTOC. - */ - bool got_lock = false; - if (ixgbe_verify_lesm_fw_enabled_82599(hw)) { - status = hw->mac.ops.acquire_swfw_sync(hw, - IXGBE_GSSR_MAC_CSR_SM); - if (status) - goto reset_hw_out; - - got_lock = true; - } - - IXGBE_WRITE_REG(hw, IXGBE_AUTOC, hw->mac.orig_autoc); - hw->mac.cached_autoc = hw->mac.orig_autoc; - ixgbe_reset_pipeline_82599(hw); - - if (got_lock) - hw->mac.ops.release_swfw_sync(hw, - IXGBE_GSSR_MAC_CSR_SM); + if (autoc != hw->mac.orig_autoc) { + status = hw->mac.ops.prot_autoc_write(hw, + hw->mac.orig_autoc, + false); + if (status) + return status; } if ((autoc2 & IXGBE_AUTOC2_UPPER_MASK) != (hw->mac.orig_autoc2 & IXGBE_AUTOC2_UPPER_MASK)) { autoc2 &= ~IXGBE_AUTOC2_UPPER_MASK; autoc2 |= (hw->mac.orig_autoc2 & - IXGBE_AUTOC2_UPPER_MASK); + IXGBE_AUTOC2_UPPER_MASK); IXGBE_WRITE_REG(hw, IXGBE_AUTOC2, autoc2); } } @@ -1127,7 +1083,7 @@ /* Add the SAN MAC address to the RAR only if it's a valid address */ if (is_valid_ether_addr(hw->mac.san_addr)) { hw->mac.ops.set_rar(hw, hw->mac.num_rar_entries - 1, - hw->mac.san_addr, 0, IXGBE_RAH_AV); + hw->mac.san_addr, 0, IXGBE_RAH_AV); /* Save the SAN MAC RAR index */ hw->mac.san_mac_rar_index = hw->mac.num_rar_entries - 1; @@ -1138,13 +1094,31 @@ /* Store the alternative WWNN/WWPN prefix */ hw->mac.ops.get_wwn_prefix(hw, &hw->mac.wwnn_prefix, - &hw->mac.wwpn_prefix); + &hw->mac.wwpn_prefix); -reset_hw_out: return status; } /** + * ixgbe_fdir_check_cmd_complete - poll to check whether FDIRCMD is complete + * @hw: pointer to hardware structure + * @fdircmd: current value of FDIRCMD register + */ +static s32 ixgbe_fdir_check_cmd_complete(struct ixgbe_hw *hw, u32 *fdircmd) +{ + int i; + + for (i = 0; i < IXGBE_FDIRCMD_CMD_POLL; i++) { + *fdircmd = IXGBE_READ_REG(hw, IXGBE_FDIRCMD); + if (!(*fdircmd & IXGBE_FDIRCMD_CMD_MASK)) + return 0; + udelay(10); + } + + return IXGBE_ERR_FDIR_CMD_INCOMPLETE; +} + +/** * ixgbe_reinit_fdir_tables_82599 - Reinitialize Flow Director tables. * @hw: pointer to hardware structure **/ @@ -1152,22 +1126,19 @@ { int i; u32 fdirctrl = IXGBE_READ_REG(hw, IXGBE_FDIRCTRL); + u32 fdircmd; + s32 err; + fdirctrl &= ~IXGBE_FDIRCTRL_INIT_DONE; /* * Before starting reinitialization process, * FDIRCMD.CMD must be zero. */ - for (i = 0; i < IXGBE_FDIRCMD_CMD_POLL; i++) { - if (!(IXGBE_READ_REG(hw, IXGBE_FDIRCMD) & - IXGBE_FDIRCMD_CMD_MASK)) - break; - udelay(10); - } - if (i >= IXGBE_FDIRCMD_CMD_POLL) { - hw_dbg(hw, "Flow Director previous command isn't complete, " - "aborting table re-initialization.\n"); - return IXGBE_ERR_FDIR_REINIT_FAILED; + err = ixgbe_fdir_check_cmd_complete(hw, &fdircmd); + if (err) { + hw_dbg(hw, "Flow Director previous command did not complete, aborting table re-initialization.\n"); + return err; } IXGBE_WRITE_REG(hw, IXGBE_FDIRFREE, 0); @@ -1180,12 +1151,12 @@ * - write 0 to bit 8 of FDIRCMD register */ IXGBE_WRITE_REG(hw, IXGBE_FDIRCMD, - (IXGBE_READ_REG(hw, IXGBE_FDIRCMD) | - IXGBE_FDIRCMD_CLEARHT)); + (IXGBE_READ_REG(hw, IXGBE_FDIRCMD) | + IXGBE_FDIRCMD_CLEARHT)); IXGBE_WRITE_FLUSH(hw); IXGBE_WRITE_REG(hw, IXGBE_FDIRCMD, - (IXGBE_READ_REG(hw, IXGBE_FDIRCMD) & - ~IXGBE_FDIRCMD_CLEARHT)); + (IXGBE_READ_REG(hw, IXGBE_FDIRCMD) & + ~IXGBE_FDIRCMD_CLEARHT)); IXGBE_WRITE_FLUSH(hw); /* * Clear FDIR Hash register to clear any leftover hashes @@ -1200,7 +1171,7 @@ /* Poll init-done after we write FDIRCTRL register */ for (i = 0; i < IXGBE_FDIR_INIT_DONE_POLL; i++) { if (IXGBE_READ_REG(hw, IXGBE_FDIRCTRL) & - IXGBE_FDIRCTRL_INIT_DONE) + IXGBE_FDIRCTRL_INIT_DONE) break; usleep_range(1000, 2000); } @@ -1249,7 +1220,7 @@ IXGBE_WRITE_FLUSH(hw); for (i = 0; i < IXGBE_FDIR_INIT_DONE_POLL; i++) { if (IXGBE_READ_REG(hw, IXGBE_FDIRCTRL) & - IXGBE_FDIRCTRL_INIT_DONE) + IXGBE_FDIRCTRL_INIT_DONE) break; usleep_range(1000, 2000); } @@ -1293,14 +1264,12 @@ /* * Continue setup of fdirctrl register bits: * Turn perfect match filtering on - * Report hash in RSS field of Rx wb descriptor * Initialize the drop queue * Move the flexible bytes to use the ethertype - shift 6 words * Set the maximum length per hash bucket to 0xA filters * Send interrupt when 64 (0x4 * 16) filters are left */ fdirctrl |= IXGBE_FDIRCTRL_PERFECT_MATCH | - IXGBE_FDIRCTRL_REPORT_STATUS | (IXGBE_FDIR_DROP_QUEUE << IXGBE_FDIRCTRL_DROP_Q_SHIFT) | (0x6 << IXGBE_FDIRCTRL_FLEX_SHIFT) | (0xA << IXGBE_FDIRCTRL_MAX_LENGTH_SHIFT) | @@ -1334,7 +1303,7 @@ bucket_hash ^= hi_hash_dword >> n; \ else if (IXGBE_ATR_SIGNATURE_HASH_KEY & (0x01 << (n + 16))) \ sig_hash ^= hi_hash_dword << (16 - n); \ -} while (0); +} while (0) /** * ixgbe_atr_compute_sig_hash_82599 - Compute the signature hash @@ -1408,20 +1377,28 @@ * @input: unique input dword * @common: compressed common input dword * @queue: queue index to direct traffic to + * + * Note that the tunnel bit in input must not be set when the hardware + * tunneling support does not exist. **/ s32 ixgbe_fdir_add_signature_filter_82599(struct ixgbe_hw *hw, - union ixgbe_atr_hash_dword input, - union ixgbe_atr_hash_dword common, - u8 queue) -{ - u64 fdirhashcmd; - u32 fdircmd; + union ixgbe_atr_hash_dword input, + union ixgbe_atr_hash_dword common, + u8 queue) +{ + u64 fdirhashcmd; + u8 flow_type; + bool tunnel; + u32 fdircmd; /* * Get the flow_type in order to program FDIRCMD properly * lowest 2 bits are FDIRCMD.L4TYPE, third lowest bit is FDIRCMD.IPV6 */ - switch (input.formatted.flow_type) { + tunnel = !!(input.formatted.flow_type & IXGBE_ATR_L4TYPE_TUNNEL_MASK); + flow_type = input.formatted.flow_type & + (IXGBE_ATR_L4TYPE_TUNNEL_MASK - 1); + switch (flow_type) { case IXGBE_ATR_FLOW_TYPE_TCPV4: case IXGBE_ATR_FLOW_TYPE_UDPV4: case IXGBE_ATR_FLOW_TYPE_SCTPV4: @@ -1436,9 +1413,11 @@ /* configure FDIRCMD register */ fdircmd = IXGBE_FDIRCMD_CMD_ADD_FLOW | IXGBE_FDIRCMD_FILTER_UPDATE | - IXGBE_FDIRCMD_LAST | IXGBE_FDIRCMD_QUEUE_EN; - fdircmd |= input.formatted.flow_type << IXGBE_FDIRCMD_FLOW_TYPE_SHIFT; + IXGBE_FDIRCMD_LAST | IXGBE_FDIRCMD_QUEUE_EN; + fdircmd |= (u32)flow_type << IXGBE_FDIRCMD_FLOW_TYPE_SHIFT; fdircmd |= (u32)queue << IXGBE_FDIRCMD_RX_QUEUE_SHIFT; + if (tunnel) + fdircmd |= IXGBE_FDIRCMD_TUNNEL_FILTER; /* * The lower 32-bits of fdirhashcmd is for FDIRHASH, the upper 32-bits @@ -1460,7 +1439,7 @@ bucket_hash ^= lo_hash_dword >> n; \ if (IXGBE_ATR_BUCKET_HASH_KEY & (0x01 << (n + 16))) \ bucket_hash ^= hi_hash_dword >> n; \ -} while (0); +} while (0) /** * ixgbe_atr_compute_perfect_hash_82599 - Compute the perfect filter hash @@ -1478,35 +1457,20 @@ { u32 hi_hash_dword, lo_hash_dword, flow_vm_vlan; - u32 bucket_hash = 0; + u32 bucket_hash = 0, hi_dword = 0; + int i; /* Apply masks to input data */ - input->dword_stream[0] &= input_mask->dword_stream[0]; - input->dword_stream[1] &= input_mask->dword_stream[1]; - input->dword_stream[2] &= input_mask->dword_stream[2]; - input->dword_stream[3] &= input_mask->dword_stream[3]; - input->dword_stream[4] &= input_mask->dword_stream[4]; - input->dword_stream[5] &= input_mask->dword_stream[5]; - input->dword_stream[6] &= input_mask->dword_stream[6]; - input->dword_stream[7] &= input_mask->dword_stream[7]; - input->dword_stream[8] &= input_mask->dword_stream[8]; - input->dword_stream[9] &= input_mask->dword_stream[9]; - input->dword_stream[10] &= input_mask->dword_stream[10]; + for (i = 0; i <= 10; i++) + input->dword_stream[i] &= input_mask->dword_stream[i]; /* record the flow_vm_vlan bits as they are a key part to the hash */ flow_vm_vlan = ntohl(input->dword_stream[0]); /* generate common hash dword */ - hi_hash_dword = ntohl(input->dword_stream[1] ^ - input->dword_stream[2] ^ - input->dword_stream[3] ^ - input->dword_stream[4] ^ - input->dword_stream[5] ^ - input->dword_stream[6] ^ - input->dword_stream[7] ^ - input->dword_stream[8] ^ - input->dword_stream[9] ^ - input->dword_stream[10]); + for (i = 1; i <= 10; i++) + hi_dword ^= input->dword_stream[i]; + hi_hash_dword = ntohl(hi_dword); /* low dword is word swapped version of common */ lo_hash_dword = (hi_hash_dword >> 16) | (hi_hash_dword << 16); @@ -1525,21 +1489,8 @@ lo_hash_dword ^= flow_vm_vlan ^ (flow_vm_vlan << 16); /* Process remaining 30 bit of the key */ - IXGBE_COMPUTE_BKT_HASH_ITERATION(1); - IXGBE_COMPUTE_BKT_HASH_ITERATION(2); - IXGBE_COMPUTE_BKT_HASH_ITERATION(3); - IXGBE_COMPUTE_BKT_HASH_ITERATION(4); - IXGBE_COMPUTE_BKT_HASH_ITERATION(5); - IXGBE_COMPUTE_BKT_HASH_ITERATION(6); - IXGBE_COMPUTE_BKT_HASH_ITERATION(7); - IXGBE_COMPUTE_BKT_HASH_ITERATION(8); - IXGBE_COMPUTE_BKT_HASH_ITERATION(9); - IXGBE_COMPUTE_BKT_HASH_ITERATION(10); - IXGBE_COMPUTE_BKT_HASH_ITERATION(11); - IXGBE_COMPUTE_BKT_HASH_ITERATION(12); - IXGBE_COMPUTE_BKT_HASH_ITERATION(13); - IXGBE_COMPUTE_BKT_HASH_ITERATION(14); - IXGBE_COMPUTE_BKT_HASH_ITERATION(15); + for (i = 1; i <= 15; i++) + IXGBE_COMPUTE_BKT_HASH_ITERATION(i); /* * Limit hash to 13 bits since max bucket count is 8K. @@ -1560,6 +1511,7 @@ static u32 ixgbe_get_fdirtcpm_82599(union ixgbe_atr_input *input_mask) { u32 mask = ntohs(input_mask->formatted.dst_port); + mask <<= IXGBE_FDIRTCPM_DPORTM_SHIFT; mask |= ntohs(input_mask->formatted.src_port); mask = ((mask & 0x55555555) << 1) | ((mask & 0xAAAAAAAA) >> 1); @@ -1672,6 +1624,16 @@ IXGBE_WRITE_REG(hw, IXGBE_FDIRTCPM, ~fdirtcpm); IXGBE_WRITE_REG(hw, IXGBE_FDIRUDPM, ~fdirtcpm); + /* also use it for SCTP */ + switch (hw->mac.type) { + case ixgbe_mac_X550: + case ixgbe_mac_X550EM_x: + IXGBE_WRITE_REG(hw, IXGBE_FDIRSCTPM, ~fdirtcpm); + break; + default: + break; + } + /* store source and destination IP masks (big-enian) */ IXGBE_WRITE_REG_BE32(hw, IXGBE_FDIRSIP4M, ~input_mask->formatted.src_ip[0]); @@ -1686,6 +1648,7 @@ u16 soft_id, u8 queue) { u32 fdirport, fdirvlan, fdirhash, fdircmd; + s32 err; /* currently IPv6 is not supported, must be programmed with 0 */ IXGBE_WRITE_REG_BE32(hw, IXGBE_FDIRSIPv6(0), @@ -1734,6 +1697,11 @@ fdircmd |= (u32)input->formatted.vm_pool << IXGBE_FDIRCMD_VT_POOL_SHIFT; IXGBE_WRITE_REG(hw, IXGBE_FDIRCMD, fdircmd); + err = ixgbe_fdir_check_cmd_complete(hw, &fdircmd); + if (err) { + hw_dbg(hw, "Flow Director command did not complete!\n"); + return err; + } return 0; } @@ -1743,9 +1711,8 @@ u16 soft_id) { u32 fdirhash; - u32 fdircmd = 0; - u32 retry_count; - s32 err = 0; + u32 fdircmd; + s32 err; /* configure FDIRHASH register */ fdirhash = input->formatted.bkt_hash; @@ -1758,18 +1725,12 @@ /* Query if filter is present */ IXGBE_WRITE_REG(hw, IXGBE_FDIRCMD, IXGBE_FDIRCMD_CMD_QUERY_REM_FILT); - for (retry_count = 10; retry_count; retry_count--) { - /* allow 10us for query to process */ - udelay(10); - /* verify query completed successfully */ - fdircmd = IXGBE_READ_REG(hw, IXGBE_FDIRCMD); - if (!(fdircmd & IXGBE_FDIRCMD_CMD_MASK)) - break; + err = ixgbe_fdir_check_cmd_complete(hw, &fdircmd); + if (err) { + hw_dbg(hw, "Flow Director command did not complete!\n"); + return err; } - if (!retry_count) - err = IXGBE_ERR_FDIR_REINIT_FAILED; - /* if filter exists in hardware then remove it */ if (fdircmd & IXGBE_FDIRCMD_FILTER_VALID) { IXGBE_WRITE_REG(hw, IXGBE_FDIRHASH, fdirhash); @@ -1778,7 +1739,7 @@ IXGBE_FDIRCMD_CMD_REMOVE_FLOW); } - return err; + return 0; } /** @@ -1794,7 +1755,7 @@ u32 core_ctl; IXGBE_WRITE_REG(hw, IXGBE_CORECTL, IXGBE_CORECTL_WRITE_CMD | - (reg << 8)); + (reg << 8)); IXGBE_WRITE_FLUSH(hw); udelay(10); core_ctl = IXGBE_READ_REG(hw, IXGBE_CORECTL); @@ -1836,21 +1797,20 @@ s32 ret_val = 0; ret_val = ixgbe_start_hw_generic(hw); - if (ret_val != 0) - goto out; + if (ret_val) + return ret_val; ret_val = ixgbe_start_hw_gen2(hw); - if (ret_val != 0) - goto out; + if (ret_val) + return ret_val; /* We need to run link autotry after the driver loads */ hw->mac.autotry_restart = true; - hw->mac.rx_pb_size = IXGBE_82599_RX_PB_SIZE; - if (ret_val == 0) - ret_val = ixgbe_verify_fw_version_82599(hw); -out: - return ret_val; + if (ret_val) + return ret_val; + + return ixgbe_verify_fw_version_82599(hw); } /** @@ -1863,16 +1823,15 @@ **/ static s32 ixgbe_identify_phy_82599(struct ixgbe_hw *hw) { - s32 status = IXGBE_ERR_PHY_ADDR_INVALID; + s32 status; /* Detect PHY if not unknown - returns success if already detected. */ status = ixgbe_identify_phy_generic(hw); - if (status != 0) { + if (status) { /* 82599 10GBASE-T requires an external PHY */ if (hw->mac.ops.get_media_type(hw) == ixgbe_media_type_copper) - goto out; - else - status = ixgbe_identify_sfp_module_generic(hw); + return status; + status = ixgbe_identify_module_generic(hw); } /* Set PHY type none if no PHY detected */ @@ -1883,131 +1842,12 @@ /* Return error if SFP module has been detected but is not supported */ if (hw->phy.type == ixgbe_phy_sfp_unsupported) - status = IXGBE_ERR_SFP_NOT_SUPPORTED; + return IXGBE_ERR_SFP_NOT_SUPPORTED; -out: return status; } /** - * ixgbe_get_supported_physical_layer_82599 - Returns physical layer type - * @hw: pointer to hardware structure - * - * Determines physical layer capabilities of the current configuration. - **/ -static u32 ixgbe_get_supported_physical_layer_82599(struct ixgbe_hw *hw) -{ - u32 physical_layer = IXGBE_PHYSICAL_LAYER_UNKNOWN; - u32 autoc = IXGBE_READ_REG(hw, IXGBE_AUTOC); - u32 autoc2 = IXGBE_READ_REG(hw, IXGBE_AUTOC2); - u32 pma_pmd_10g_serial = autoc2 & IXGBE_AUTOC2_10G_SERIAL_PMA_PMD_MASK; - u32 pma_pmd_10g_parallel = autoc & IXGBE_AUTOC_10G_PMA_PMD_MASK; - u32 pma_pmd_1g = autoc & IXGBE_AUTOC_1G_PMA_PMD_MASK; - u16 ext_ability = 0; - u8 comp_codes_10g = 0; - u8 comp_codes_1g = 0; - - hw->phy.ops.identify(hw); - - switch (hw->phy.type) { - case ixgbe_phy_tn: - case ixgbe_phy_cu_unknown: - hw->phy.ops.read_reg(hw, MDIO_PMA_EXTABLE, MDIO_MMD_PMAPMD, - &ext_ability); - if (ext_ability & MDIO_PMA_EXTABLE_10GBT) - physical_layer |= IXGBE_PHYSICAL_LAYER_10GBASE_T; - if (ext_ability & MDIO_PMA_EXTABLE_1000BT) - physical_layer |= IXGBE_PHYSICAL_LAYER_1000BASE_T; - if (ext_ability & MDIO_PMA_EXTABLE_100BTX) - physical_layer |= IXGBE_PHYSICAL_LAYER_100BASE_TX; - goto out; - default: - break; - } - - switch (autoc & IXGBE_AUTOC_LMS_MASK) { - case IXGBE_AUTOC_LMS_1G_AN: - case IXGBE_AUTOC_LMS_1G_LINK_NO_AN: - if (pma_pmd_1g == IXGBE_AUTOC_1G_KX_BX) { - physical_layer = IXGBE_PHYSICAL_LAYER_1000BASE_KX | - IXGBE_PHYSICAL_LAYER_1000BASE_BX; - goto out; - } else - /* SFI mode so read SFP module */ - goto sfp_check; - break; - case IXGBE_AUTOC_LMS_10G_LINK_NO_AN: - if (pma_pmd_10g_parallel == IXGBE_AUTOC_10G_CX4) - physical_layer = IXGBE_PHYSICAL_LAYER_10GBASE_CX4; - else if (pma_pmd_10g_parallel == IXGBE_AUTOC_10G_KX4) - physical_layer = IXGBE_PHYSICAL_LAYER_10GBASE_KX4; - else if (pma_pmd_10g_parallel == IXGBE_AUTOC_10G_XAUI) - physical_layer = IXGBE_PHYSICAL_LAYER_10GBASE_XAUI; - goto out; - break; - case IXGBE_AUTOC_LMS_10G_SERIAL: - if (pma_pmd_10g_serial == IXGBE_AUTOC2_10G_KR) { - physical_layer = IXGBE_PHYSICAL_LAYER_10GBASE_KR; - goto out; - } else if (pma_pmd_10g_serial == IXGBE_AUTOC2_10G_SFI) - goto sfp_check; - break; - case IXGBE_AUTOC_LMS_KX4_KX_KR: - case IXGBE_AUTOC_LMS_KX4_KX_KR_1G_AN: - if (autoc & IXGBE_AUTOC_KX_SUPP) - physical_layer |= IXGBE_PHYSICAL_LAYER_1000BASE_KX; - if (autoc & IXGBE_AUTOC_KX4_SUPP) - physical_layer |= IXGBE_PHYSICAL_LAYER_10GBASE_KX4; - if (autoc & IXGBE_AUTOC_KR_SUPP) - physical_layer |= IXGBE_PHYSICAL_LAYER_10GBASE_KR; - goto out; - break; - default: - goto out; - break; - } - -sfp_check: - /* SFP check must be done last since DA modules are sometimes used to - * test KR mode - we need to id KR mode correctly before SFP module. - * Call identify_sfp because the pluggable module may have changed */ - hw->phy.ops.identify_sfp(hw); - if (hw->phy.sfp_type == ixgbe_sfp_type_not_present) - goto out; - - switch (hw->phy.type) { - case ixgbe_phy_sfp_passive_tyco: - case ixgbe_phy_sfp_passive_unknown: - physical_layer = IXGBE_PHYSICAL_LAYER_SFP_PLUS_CU; - break; - case ixgbe_phy_sfp_ftl_active: - case ixgbe_phy_sfp_active_unknown: - physical_layer = IXGBE_PHYSICAL_LAYER_SFP_ACTIVE_DA; - break; - case ixgbe_phy_sfp_avago: - case ixgbe_phy_sfp_ftl: - case ixgbe_phy_sfp_intel: - case ixgbe_phy_sfp_unknown: - hw->phy.ops.read_i2c_eeprom(hw, - IXGBE_SFF_1GBE_COMP_CODES, &comp_codes_1g); - hw->phy.ops.read_i2c_eeprom(hw, - IXGBE_SFF_10GBE_COMP_CODES, &comp_codes_10g); - if (comp_codes_10g & IXGBE_SFF_10GBASESR_CAPABLE) - physical_layer = IXGBE_PHYSICAL_LAYER_10GBASE_SR; - else if (comp_codes_10g & IXGBE_SFF_10GBASELR_CAPABLE) - physical_layer = IXGBE_PHYSICAL_LAYER_10GBASE_LR; - else if (comp_codes_1g & IXGBE_SFF_1GBASET_CAPABLE) - physical_layer = IXGBE_PHYSICAL_LAYER_1000BASE_T; - break; - default: - break; - } - -out: - return physical_layer; -} - -/** * ixgbe_enable_rx_dma_82599 - Enable the Rx DMA unit on 82599 * @hw: pointer to hardware structure * @regval: register value to write to RXCTRL @@ -2024,7 +1864,10 @@ */ hw->mac.ops.disable_rx_buff(hw); - IXGBE_WRITE_REG(hw, IXGBE_RXCTRL, regval); + if (regval & IXGBE_RXCTRL_RXEN) + hw->mac.ops.enable_rx(hw); + else + hw->mac.ops.disable_rx(hw); hw->mac.ops.enable_rx_buff(hw); @@ -2045,38 +1888,42 @@ { s32 status = IXGBE_ERR_EEPROM_VERSION; u16 fw_offset, fw_ptp_cfg_offset; + u16 offset; u16 fw_version = 0; /* firmware check is only necessary for SFI devices */ - if (hw->phy.media_type != ixgbe_media_type_fiber) { - status = 0; - goto fw_version_out; - } + if (hw->phy.media_type != ixgbe_media_type_fiber) + return 0; /* get the offset to the Firmware Module block */ - hw->eeprom.ops.read(hw, IXGBE_FW_PTR, &fw_offset); + offset = IXGBE_FW_PTR; + if (hw->eeprom.ops.read(hw, offset, &fw_offset)) + goto fw_version_err; - if ((fw_offset == 0) || (fw_offset == 0xFFFF)) - goto fw_version_out; + if (fw_offset == 0 || fw_offset == 0xFFFF) + return IXGBE_ERR_EEPROM_VERSION; /* get the offset to the Pass Through Patch Configuration block */ - hw->eeprom.ops.read(hw, (fw_offset + - IXGBE_FW_PASSTHROUGH_PATCH_CONFIG_PTR), - &fw_ptp_cfg_offset); + offset = fw_offset + IXGBE_FW_PASSTHROUGH_PATCH_CONFIG_PTR; + if (hw->eeprom.ops.read(hw, offset, &fw_ptp_cfg_offset)) + goto fw_version_err; - if ((fw_ptp_cfg_offset == 0) || (fw_ptp_cfg_offset == 0xFFFF)) - goto fw_version_out; + if (fw_ptp_cfg_offset == 0 || fw_ptp_cfg_offset == 0xFFFF) + return IXGBE_ERR_EEPROM_VERSION; /* get the firmware version */ - hw->eeprom.ops.read(hw, (fw_ptp_cfg_offset + - IXGBE_FW_PATCH_VERSION_4), - &fw_version); + offset = fw_ptp_cfg_offset + IXGBE_FW_PATCH_VERSION_4; + if (hw->eeprom.ops.read(hw, offset, &fw_version)) + goto fw_version_err; if (fw_version > 0x5) status = 0; -fw_version_out: return status; + +fw_version_err: + hw_err(hw, "eeprom read at offset %d failed\n", offset); + return IXGBE_ERR_EEPROM_VERSION; } /** @@ -2086,39 +1933,35 @@ * Returns true if the LESM FW module is present and enabled. Otherwise * returns false. Smart Speed must be disabled if LESM FW module is enabled. **/ -bool ixgbe_verify_lesm_fw_enabled_82599(struct ixgbe_hw *hw) +static bool ixgbe_verify_lesm_fw_enabled_82599(struct ixgbe_hw *hw) { - bool lesm_enabled = false; u16 fw_offset, fw_lesm_param_offset, fw_lesm_state; s32 status; /* get the offset to the Firmware Module block */ status = hw->eeprom.ops.read(hw, IXGBE_FW_PTR, &fw_offset); - if ((status != 0) || - (fw_offset == 0) || (fw_offset == 0xFFFF)) - goto out; + if (status || fw_offset == 0 || fw_offset == 0xFFFF) + return false; /* get the offset to the LESM Parameters block */ status = hw->eeprom.ops.read(hw, (fw_offset + IXGBE_FW_LESM_PARAMETERS_PTR), &fw_lesm_param_offset); - if ((status != 0) || - (fw_lesm_param_offset == 0) || (fw_lesm_param_offset == 0xFFFF)) - goto out; + if (status || + fw_lesm_param_offset == 0 || fw_lesm_param_offset == 0xFFFF) + return false; /* get the lesm state word */ status = hw->eeprom.ops.read(hw, (fw_lesm_param_offset + IXGBE_FW_LESM_STATE_1), &fw_lesm_state); - if ((status == 0) && - (fw_lesm_state & IXGBE_FW_LESM_STATE_ENABLED)) - lesm_enabled = true; + if (!status && (fw_lesm_state & IXGBE_FW_LESM_STATE_ENABLED)) + return true; -out: - return lesm_enabled; + return false; } /** @@ -2136,22 +1979,16 @@ u16 words, u16 *data) { struct ixgbe_eeprom_info *eeprom = &hw->eeprom; - s32 ret_val = IXGBE_ERR_CONFIG; - /* - * If EEPROM is detected and can be addressed using 14 bits, + /* If EEPROM is detected and can be addressed using 14 bits, * use EERD otherwise use bit bang */ - if ((eeprom->type == ixgbe_eeprom_spi) && - (offset + (words - 1) <= IXGBE_EERD_MAX_ADDR)) - ret_val = ixgbe_read_eerd_buffer_generic(hw, offset, words, - data); - else - ret_val = ixgbe_read_eeprom_buffer_bit_bang_generic(hw, offset, - words, - data); + if (eeprom->type == ixgbe_eeprom_spi && + offset + (words - 1) <= IXGBE_EERD_MAX_ADDR) + return ixgbe_read_eerd_buffer_generic(hw, offset, words, data); - return ret_val; + return ixgbe_read_eeprom_buffer_bit_bang_generic(hw, offset, words, + data); } /** @@ -2168,19 +2005,15 @@ u16 offset, u16 *data) { struct ixgbe_eeprom_info *eeprom = &hw->eeprom; - s32 ret_val = IXGBE_ERR_CONFIG; /* * If EEPROM is detected and can be addressed using 14 bits, * use EERD otherwise use bit bang */ - if ((eeprom->type == ixgbe_eeprom_spi) && - (offset <= IXGBE_EERD_MAX_ADDR)) - ret_val = ixgbe_read_eerd_generic(hw, offset, data); - else - ret_val = ixgbe_read_eeprom_bit_bang_generic(hw, offset, data); + if (eeprom->type == ixgbe_eeprom_spi && offset <= IXGBE_EERD_MAX_ADDR) + return ixgbe_read_eerd_generic(hw, offset, data); - return ret_val; + return ixgbe_read_eeprom_bit_bang_generic(hw, offset, data); } /** @@ -2192,7 +2025,7 @@ * full pipeline reset. Note - We must hold the SW/FW semaphore before writing * to AUTOC, so this function assumes the semaphore is held. **/ -s32 ixgbe_reset_pipeline_82599(struct ixgbe_hw *hw) +static s32 ixgbe_reset_pipeline_82599(struct ixgbe_hw *hw) { s32 ret_val; u32 anlp1_reg = 0; @@ -2206,11 +2039,12 @@ IXGBE_WRITE_FLUSH(hw); } - autoc_reg = hw->mac.cached_autoc; + autoc_reg = IXGBE_READ_REG(hw, IXGBE_AUTOC); autoc_reg |= IXGBE_AUTOC_AN_RESTART; /* Write AUTOC register with toggled LMS[2] bit and Restart_AN */ - IXGBE_WRITE_REG(hw, IXGBE_AUTOC, autoc_reg ^ IXGBE_AUTOC_LMS_1G_AN); + IXGBE_WRITE_REG(hw, IXGBE_AUTOC, + autoc_reg ^ (0x4 << IXGBE_AUTOC_LMS_SHIFT)); /* Wait for AN to leave state 0 */ for (i = 0; i < 10; i++) { @@ -2236,13 +2070,118 @@ return ret_val; } +/** + * ixgbe_read_i2c_byte_82599 - Reads 8 bit word over I2C + * @hw: pointer to hardware structure + * @byte_offset: byte offset to read + * @data: value read + * + * Performs byte read operation to SFP module's EEPROM over I2C interface at + * a specified device address. + **/ +static s32 ixgbe_read_i2c_byte_82599(struct ixgbe_hw *hw, u8 byte_offset, + u8 dev_addr, u8 *data) +{ + u32 esdp; + s32 status; + s32 timeout = 200; + + if (hw->phy.qsfp_shared_i2c_bus == true) { + /* Acquire I2C bus ownership. */ + esdp = IXGBE_READ_REG(hw, IXGBE_ESDP); + esdp |= IXGBE_ESDP_SDP0; + IXGBE_WRITE_REG(hw, IXGBE_ESDP, esdp); + IXGBE_WRITE_FLUSH(hw); + + while (timeout) { + esdp = IXGBE_READ_REG(hw, IXGBE_ESDP); + if (esdp & IXGBE_ESDP_SDP1) + break; + + usleep_range(5000, 10000); + timeout--; + } + + if (!timeout) { + hw_dbg(hw, "Driver can't access resource, acquiring I2C bus timeout.\n"); + status = IXGBE_ERR_I2C; + goto release_i2c_access; + } + } + + status = ixgbe_read_i2c_byte_generic(hw, byte_offset, dev_addr, data); + +release_i2c_access: + if (hw->phy.qsfp_shared_i2c_bus == true) { + /* Release I2C bus ownership. */ + esdp = IXGBE_READ_REG(hw, IXGBE_ESDP); + esdp &= ~IXGBE_ESDP_SDP0; + IXGBE_WRITE_REG(hw, IXGBE_ESDP, esdp); + IXGBE_WRITE_FLUSH(hw); + } + + return status; +} + +/** + * ixgbe_write_i2c_byte_82599 - Writes 8 bit word over I2C + * @hw: pointer to hardware structure + * @byte_offset: byte offset to write + * @data: value to write + * + * Performs byte write operation to SFP module's EEPROM over I2C interface at + * a specified device address. + **/ +static s32 ixgbe_write_i2c_byte_82599(struct ixgbe_hw *hw, u8 byte_offset, + u8 dev_addr, u8 data) +{ + u32 esdp; + s32 status; + s32 timeout = 200; + + if (hw->phy.qsfp_shared_i2c_bus == true) { + /* Acquire I2C bus ownership. */ + esdp = IXGBE_READ_REG(hw, IXGBE_ESDP); + esdp |= IXGBE_ESDP_SDP0; + IXGBE_WRITE_REG(hw, IXGBE_ESDP, esdp); + IXGBE_WRITE_FLUSH(hw); + + while (timeout) { + esdp = IXGBE_READ_REG(hw, IXGBE_ESDP); + if (esdp & IXGBE_ESDP_SDP1) + break; + + usleep_range(5000, 10000); + timeout--; + } + + if (!timeout) { + hw_dbg(hw, "Driver can't access resource, acquiring I2C bus timeout.\n"); + status = IXGBE_ERR_I2C; + goto release_i2c_access; + } + } + + status = ixgbe_write_i2c_byte_generic(hw, byte_offset, dev_addr, data); + +release_i2c_access: + if (hw->phy.qsfp_shared_i2c_bus == true) { + /* Release I2C bus ownership. */ + esdp = IXGBE_READ_REG(hw, IXGBE_ESDP); + esdp &= ~IXGBE_ESDP_SDP0; + IXGBE_WRITE_REG(hw, IXGBE_ESDP, esdp); + IXGBE_WRITE_FLUSH(hw); + } + + return status; +} + static struct ixgbe_mac_operations mac_ops_82599 = { .init_hw = &ixgbe_init_hw_generic, .reset_hw = &ixgbe_reset_hw_82599, .start_hw = &ixgbe_start_hw_82599, .clear_hw_cntrs = &ixgbe_clear_hw_cntrs_generic, .get_media_type = &ixgbe_get_media_type_82599, - .get_supported_physical_layer = &ixgbe_get_supported_physical_layer_82599, .enable_rx_dma = &ixgbe_enable_rx_dma_82599, .disable_rx_buff = &ixgbe_disable_rx_buff_generic, .enable_rx_buff = &ixgbe_enable_rx_buff_generic, @@ -2255,6 +2194,7 @@ .set_lan_id = &ixgbe_set_lan_id_multi_port_pcie, .read_analog_reg8 = &ixgbe_read_analog_reg8_82599, .write_analog_reg8 = &ixgbe_write_analog_reg8_82599, + .stop_link_on_d3 = &ixgbe_stop_mac_link_on_d3_82599, .setup_link = &ixgbe_setup_mac_link_82599, .set_rxpba = &ixgbe_set_rxpba_generic, .check_link = &ixgbe_check_mac_link_generic, @@ -2284,7 +2224,10 @@ .release_swfw_sync = &ixgbe_release_swfw_sync, .get_thermal_sensor_data = &ixgbe_get_thermal_sensor_data_generic, .init_thermal_sensor_thresh = &ixgbe_init_thermal_sensor_thresh_generic, - .mng_fw_enabled = &ixgbe_mng_enabled, + .prot_autoc_read = &prot_autoc_read_82599, + .prot_autoc_write = &prot_autoc_write_82599, + .enable_rx = &ixgbe_enable_rx_generic, + .disable_rx = &ixgbe_disable_rx_generic, }; static struct ixgbe_eeprom_operations eeprom_ops_82599 = { @@ -2300,7 +2243,7 @@ static struct ixgbe_phy_operations phy_ops_82599 = { .identify = &ixgbe_identify_phy_82599, - .identify_sfp = &ixgbe_identify_sfp_module_generic, + .identify_sfp = &ixgbe_identify_module_generic, .init = &ixgbe_init_phy_ops_82599, .reset = &ixgbe_reset_phy_generic, .read_reg = &ixgbe_read_phy_reg_generic, @@ -2322,4 +2265,5 @@ .eeprom_ops = &eeprom_ops_82599, .phy_ops = &phy_ops_82599, .mbx_ops = &mbx_ops_generic, + .mvals = ixgbe_mvals_8259X, };