| /******************************************************************************* |
| |
| Intel 10 Gigabit PCI Express Linux driver |
| Copyright(c) 1999 - 2012 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. |
| |
| You should have received a copy of the GNU General Public License along with |
| this program; if not, write to the Free Software Foundation, Inc., |
| 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA. |
| |
| The full GNU General Public License is included in this distribution in |
| the file called "COPYING". |
| |
| Contact Information: |
| e1000-devel Mailing List <e1000-devel@lists.sourceforge.net> |
| Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497 |
| |
| *******************************************************************************/ |
| |
| #include "ixgbe_type.h" |
| #include "ixgbe_82599.h" |
| #include "ixgbe_api.h" |
| #include "ixgbe_common.h" |
| #include "ixgbe_phy.h" |
| |
| #ifdef ENABLE_DNA |
| #include "../../../../kernel/linux/pf_ring.h" |
| #endif |
| |
| static s32 ixgbe_setup_copper_link_82599(struct ixgbe_hw *hw, |
| ixgbe_link_speed speed, |
| bool autoneg, |
| bool autoneg_wait_to_complete); |
| static s32 ixgbe_verify_fw_version_82599(struct ixgbe_hw *hw); |
| static s32 ixgbe_read_eeprom_82599(struct ixgbe_hw *hw, |
| u16 offset, u16 *data); |
| static s32 ixgbe_read_eeprom_buffer_82599(struct ixgbe_hw *hw, u16 offset, |
| u16 words, u16 *data); |
| |
| void ixgbe_init_mac_link_ops_82599(struct ixgbe_hw *hw) |
| { |
| struct ixgbe_mac_info *mac = &hw->mac; |
| |
| /* enable the laser control functions for SFP+ fiber */ |
| if (mac->ops.get_media_type(hw) == ixgbe_media_type_fiber) { |
| mac->ops.disable_tx_laser = |
| &ixgbe_disable_tx_laser_multispeed_fiber; |
| mac->ops.enable_tx_laser = |
| &ixgbe_enable_tx_laser_multispeed_fiber; |
| mac->ops.flap_tx_laser = &ixgbe_flap_tx_laser_multispeed_fiber; |
| |
| } else { |
| mac->ops.disable_tx_laser = NULL; |
| mac->ops.enable_tx_laser = NULL; |
| mac->ops.flap_tx_laser = NULL; |
| } |
| |
| if (hw->phy.multispeed_fiber) { |
| /* Set up dual speed SFP+ support */ |
| mac->ops.setup_link = &ixgbe_setup_mac_link_multispeed_fiber; |
| } else { |
| if ((ixgbe_get_media_type(hw) == ixgbe_media_type_backplane) && |
| (hw->phy.smart_speed == ixgbe_smart_speed_auto || |
| hw->phy.smart_speed == ixgbe_smart_speed_on) && |
| !ixgbe_verify_lesm_fw_enabled_82599(hw)) { |
| mac->ops.setup_link = &ixgbe_setup_mac_link_smartspeed; |
| } else { |
| mac->ops.setup_link = &ixgbe_setup_mac_link_82599; |
| } |
| } |
| } |
| |
| /** |
| * ixgbe_init_phy_ops_82599 - 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. |
| * |
| **/ |
| s32 ixgbe_init_phy_ops_82599(struct ixgbe_hw *hw) |
| { |
| struct ixgbe_mac_info *mac = &hw->mac; |
| struct ixgbe_phy_info *phy = &hw->phy; |
| s32 ret_val = 0; |
| |
| /* Identify the PHY or SFP module */ |
| ret_val = phy->ops.identify(hw); |
| if (ret_val == IXGBE_ERR_SFP_NOT_SUPPORTED) |
| goto init_phy_ops_out; |
| |
| /* Setup function pointers based on detected SFP module and speeds */ |
| ixgbe_init_mac_link_ops_82599(hw); |
| if (hw->phy.sfp_type != ixgbe_sfp_type_unknown) |
| hw->phy.ops.reset = NULL; |
| |
| /* If copper media, overwrite with copper function pointers */ |
| if (mac->ops.get_media_type(hw) == ixgbe_media_type_copper) { |
| mac->ops.setup_link = &ixgbe_setup_copper_link_82599; |
| mac->ops.get_link_capabilities = |
| &ixgbe_get_copper_link_capabilities_generic; |
| } |
| |
| /* Set necessary function pointers based on phy type */ |
| switch (hw->phy.type) { |
| case ixgbe_phy_tn: |
| phy->ops.setup_link = &ixgbe_setup_phy_link_tnx; |
| phy->ops.check_link = &ixgbe_check_phy_link_tnx; |
| phy->ops.get_firmware_version = |
| &ixgbe_get_phy_firmware_version_tnx; |
| break; |
| default: |
| break; |
| } |
| init_phy_ops_out: |
| return ret_val; |
| } |
| |
| s32 ixgbe_setup_sfp_modules_82599(struct ixgbe_hw *hw) |
| { |
| s32 ret_val = 0; |
| u32 reg_anlp1 = 0; |
| u32 i = 0; |
| u16 list_offset, data_offset, data_value; |
| |
| if (hw->phy.sfp_type != ixgbe_sfp_type_unknown) { |
| ixgbe_init_mac_link_ops_82599(hw); |
| |
| 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; |
| |
| /* 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; |
| } |
| |
| hw->eeprom.ops.read(hw, ++data_offset, &data_value); |
| 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); |
| } |
| |
| /* Release the semaphore */ |
| hw->mac.ops.release_swfw_sync(hw, IXGBE_GSSR_MAC_CSR_SM); |
| /* Delay obtaining semaphore again to allow FW access */ |
| msleep(hw->eeprom.semaphore_delay); |
| |
| /* Now restart DSP by setting Restart_AN and clearing LMS */ |
| IXGBE_WRITE_REG(hw, IXGBE_AUTOC, ((IXGBE_READ_REG(hw, |
| IXGBE_AUTOC) & ~IXGBE_AUTOC_LMS_MASK) | |
| IXGBE_AUTOC_AN_RESTART)); |
| |
| /* Wait for AN to leave state 0 */ |
| for (i = 0; i < 10; i++) { |
| msleep(4); |
| reg_anlp1 = IXGBE_READ_REG(hw, IXGBE_ANLP1); |
| if (reg_anlp1 & IXGBE_ANLP1_AN_STATE_MASK) |
| break; |
| } |
| if (!(reg_anlp1 & IXGBE_ANLP1_AN_STATE_MASK)) { |
| hw_dbg(hw, "sfp module setup not complete\n"); |
| ret_val = IXGBE_ERR_SFP_SETUP_NOT_COMPLETE; |
| goto setup_sfp_out; |
| } |
| |
| /* Restart DSP by setting Restart_AN and return to SFI mode */ |
| IXGBE_WRITE_REG(hw, IXGBE_AUTOC, (IXGBE_READ_REG(hw, |
| IXGBE_AUTOC) | IXGBE_AUTOC_LMS_10G_SERIAL | |
| IXGBE_AUTOC_AN_RESTART)); |
| } |
| |
| setup_sfp_out: |
| return ret_val; |
| } |
| |
| /** |
| * ixgbe_init_ops_82599 - Inits func ptrs and MAC type |
| * @hw: pointer to hardware structure |
| * |
| * Initialize the function pointers and assign the MAC type for 82599. |
| * Does not touch the hardware. |
| **/ |
| |
| s32 ixgbe_init_ops_82599(struct ixgbe_hw *hw) |
| { |
| struct ixgbe_mac_info *mac = &hw->mac; |
| struct ixgbe_phy_info *phy = &hw->phy; |
| struct ixgbe_eeprom_info *eeprom = &hw->eeprom; |
| s32 ret_val; |
| |
| ret_val = ixgbe_init_phy_ops_generic(hw); |
| ret_val = ixgbe_init_ops_generic(hw); |
| |
| /* PHY */ |
| phy->ops.identify = &ixgbe_identify_phy_82599; |
| phy->ops.init = &ixgbe_init_phy_ops_82599; |
| |
| /* MAC */ |
| mac->ops.reset_hw = &ixgbe_reset_hw_82599; |
| mac->ops.get_media_type = &ixgbe_get_media_type_82599; |
| mac->ops.get_supported_physical_layer = |
| &ixgbe_get_supported_physical_layer_82599; |
| mac->ops.disable_sec_rx_path = &ixgbe_disable_sec_rx_path_generic; |
| mac->ops.enable_sec_rx_path = &ixgbe_enable_sec_rx_path_generic; |
| mac->ops.enable_rx_dma = &ixgbe_enable_rx_dma_82599; |
| mac->ops.read_analog_reg8 = &ixgbe_read_analog_reg8_82599; |
| mac->ops.write_analog_reg8 = &ixgbe_write_analog_reg8_82599; |
| mac->ops.start_hw = &ixgbe_start_hw_82599; |
| mac->ops.get_san_mac_addr = &ixgbe_get_san_mac_addr_generic; |
| mac->ops.set_san_mac_addr = &ixgbe_set_san_mac_addr_generic; |
| mac->ops.get_device_caps = &ixgbe_get_device_caps_generic; |
| mac->ops.get_wwn_prefix = &ixgbe_get_wwn_prefix_generic; |
| mac->ops.get_fcoe_boot_status = &ixgbe_get_fcoe_boot_status_generic; |
| |
| /* RAR, Multicast, VLAN */ |
| mac->ops.set_vmdq = &ixgbe_set_vmdq_generic; |
| mac->ops.set_vmdq_san_mac = &ixgbe_set_vmdq_san_mac_generic; |
| mac->ops.clear_vmdq = &ixgbe_clear_vmdq_generic; |
| mac->ops.insert_mac_addr = &ixgbe_insert_mac_addr_generic; |
| mac->rar_highwater = 1; |
| mac->ops.set_vfta = &ixgbe_set_vfta_generic; |
| mac->ops.set_vlvf = &ixgbe_set_vlvf_generic; |
| mac->ops.clear_vfta = &ixgbe_clear_vfta_generic; |
| mac->ops.init_uta_tables = &ixgbe_init_uta_tables_generic; |
| mac->ops.setup_sfp = &ixgbe_setup_sfp_modules_82599; |
| mac->ops.set_mac_anti_spoofing = &ixgbe_set_mac_anti_spoofing; |
| mac->ops.set_vlan_anti_spoofing = &ixgbe_set_vlan_anti_spoofing; |
| |
| /* Link */ |
| mac->ops.get_link_capabilities = &ixgbe_get_link_capabilities_82599; |
| mac->ops.check_link = &ixgbe_check_mac_link_generic; |
| mac->ops.setup_rxpba = &ixgbe_set_rxpba_generic; |
| ixgbe_init_mac_link_ops_82599(hw); |
| |
| mac->mcft_size = 128; |
| mac->vft_size = 128; |
| mac->num_rar_entries = 128; |
| mac->rx_pb_size = 512; |
| mac->max_tx_queues = 128; |
| mac->max_rx_queues = 128; |
| mac->max_msix_vectors = ixgbe_get_pcie_msix_count_generic(hw); |
| |
| mac->arc_subsystem_valid = (IXGBE_READ_REG(hw, IXGBE_FWSM) & |
| IXGBE_FWSM_MODE_MASK) ? true : false; |
| |
| hw->mbx.ops.init_params = ixgbe_init_mbx_params_pf; |
| |
| /* EEPROM */ |
| eeprom->ops.read = &ixgbe_read_eeprom_82599; |
| eeprom->ops.read_buffer = &ixgbe_read_eeprom_buffer_82599; |
| |
| /* Manageability interface */ |
| mac->ops.set_fw_drv_ver = &ixgbe_set_fw_drv_ver_generic; |
| |
| mac->ops.get_thermal_sensor_data = |
| &ixgbe_get_thermal_sensor_data_generic; |
| mac->ops.init_thermal_sensor_thresh = |
| &ixgbe_init_thermal_sensor_thresh_generic; |
| |
| return ret_val; |
| } |
| |
| /** |
| * ixgbe_get_link_capabilities_82599 - Determines link capabilities |
| * @hw: pointer to hardware structure |
| * @speed: pointer to link speed |
| * @negotiation: true when autoneg or autotry is enabled |
| * |
| * Determines the link capabilities by reading the AUTOC register. |
| **/ |
| s32 ixgbe_get_link_capabilities_82599(struct ixgbe_hw *hw, |
| ixgbe_link_speed *speed, |
| bool *negotiation) |
| { |
| s32 status = 0; |
| u32 autoc = 0; |
| |
| /* Check if 1G SFP module. */ |
| if (hw->phy.sfp_type == ixgbe_sfp_type_1g_cu_core0 || |
| hw->phy.sfp_type == ixgbe_sfp_type_1g_cu_core1 || |
| 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; |
| *negotiation = true; |
| goto out; |
| } |
| |
| /* |
| * Determine link capabilities based on the stored value of AUTOC, |
| * which represents EEPROM defaults. If AUTOC value has not |
| * been stored, use the current register values. |
| */ |
| if (hw->mac.orig_link_settings_stored) |
| autoc = hw->mac.orig_autoc; |
| else |
| autoc = IXGBE_READ_REG(hw, IXGBE_AUTOC); |
| |
| switch (autoc & IXGBE_AUTOC_LMS_MASK) { |
| case IXGBE_AUTOC_LMS_1G_LINK_NO_AN: |
| *speed = IXGBE_LINK_SPEED_1GB_FULL; |
| *negotiation = false; |
| break; |
| |
| case IXGBE_AUTOC_LMS_10G_LINK_NO_AN: |
| *speed = IXGBE_LINK_SPEED_10GB_FULL; |
| *negotiation = false; |
| break; |
| |
| case IXGBE_AUTOC_LMS_1G_AN: |
| *speed = IXGBE_LINK_SPEED_1GB_FULL; |
| *negotiation = true; |
| break; |
| |
| case IXGBE_AUTOC_LMS_10G_SERIAL: |
| *speed = IXGBE_LINK_SPEED_10GB_FULL; |
| *negotiation = false; |
| break; |
| |
| case IXGBE_AUTOC_LMS_KX4_KX_KR: |
| case IXGBE_AUTOC_LMS_KX4_KX_KR_1G_AN: |
| *speed = IXGBE_LINK_SPEED_UNKNOWN; |
| if (autoc & IXGBE_AUTOC_KR_SUPP) |
| *speed |= IXGBE_LINK_SPEED_10GB_FULL; |
| if (autoc & IXGBE_AUTOC_KX4_SUPP) |
| *speed |= IXGBE_LINK_SPEED_10GB_FULL; |
| if (autoc & IXGBE_AUTOC_KX_SUPP) |
| *speed |= IXGBE_LINK_SPEED_1GB_FULL; |
| *negotiation = true; |
| break; |
| |
| case IXGBE_AUTOC_LMS_KX4_KX_KR_SGMII: |
| *speed = IXGBE_LINK_SPEED_100_FULL; |
| if (autoc & IXGBE_AUTOC_KR_SUPP) |
| *speed |= IXGBE_LINK_SPEED_10GB_FULL; |
| if (autoc & IXGBE_AUTOC_KX4_SUPP) |
| *speed |= IXGBE_LINK_SPEED_10GB_FULL; |
| if (autoc & IXGBE_AUTOC_KX_SUPP) |
| *speed |= IXGBE_LINK_SPEED_1GB_FULL; |
| *negotiation = true; |
| break; |
| |
| case IXGBE_AUTOC_LMS_SGMII_1G_100M: |
| *speed = IXGBE_LINK_SPEED_1GB_FULL | IXGBE_LINK_SPEED_100_FULL; |
| *negotiation = false; |
| break; |
| |
| default: |
| status = IXGBE_ERR_LINK_SETUP; |
| goto out; |
| break; |
| } |
| |
| if (hw->phy.multispeed_fiber) { |
| *speed |= IXGBE_LINK_SPEED_10GB_FULL | |
| IXGBE_LINK_SPEED_1GB_FULL; |
| *negotiation = true; |
| } |
| |
| out: |
| return status; |
| } |
| |
| /** |
| * ixgbe_get_media_type_82599 - Get media type |
| * @hw: pointer to hardware structure |
| * |
| * Returns the media type (fiber, copper, backplane) |
| **/ |
| 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; |
| default: |
| break; |
| } |
| |
| switch (hw->device_id) { |
| case IXGBE_DEV_ID_82599_KX4: |
| case IXGBE_DEV_ID_82599_KX4_MEZZ: |
| case IXGBE_DEV_ID_82599_COMBO_BACKPLANE: |
| case IXGBE_DEV_ID_82599_KR: |
| 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; |
| 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; |
| case IXGBE_DEV_ID_82599_CX4: |
| media_type = ixgbe_media_type_cx4; |
| break; |
| case IXGBE_DEV_ID_82599_T3_LOM: |
| media_type = ixgbe_media_type_copper; |
| break; |
| case IXGBE_DEV_ID_82599_LS: |
| media_type = ixgbe_media_type_fiber_lco; |
| break; |
| default: |
| media_type = ixgbe_media_type_unknown; |
| break; |
| } |
| out: |
| return media_type; |
| } |
| |
| /** |
| * ixgbe_start_mac_link_82599 - Setup MAC link settings |
| * @hw: pointer to hardware structure |
| * @autoneg_wait_to_complete: true when waiting for completion is needed |
| * |
| * Configures link settings based on values in the ixgbe_hw struct. |
| * Restarts the link. Performs autonegotiation if needed. |
| **/ |
| s32 ixgbe_start_mac_link_82599(struct ixgbe_hw *hw, |
| bool autoneg_wait_to_complete) |
| { |
| u32 autoc_reg; |
| u32 links_reg; |
| u32 i; |
| s32 status = 0; |
| |
| /* Restart link */ |
| autoc_reg = IXGBE_READ_REG(hw, IXGBE_AUTOC); |
| autoc_reg |= IXGBE_AUTOC_AN_RESTART; |
| IXGBE_WRITE_REG(hw, IXGBE_AUTOC, autoc_reg); |
| |
| /* Only poll for autoneg to complete if specified to do so */ |
| if (autoneg_wait_to_complete) { |
| if ((autoc_reg & IXGBE_AUTOC_LMS_MASK) == |
| IXGBE_AUTOC_LMS_KX4_KX_KR || |
| (autoc_reg & IXGBE_AUTOC_LMS_MASK) == |
| IXGBE_AUTOC_LMS_KX4_KX_KR_1G_AN || |
| (autoc_reg & IXGBE_AUTOC_LMS_MASK) == |
| IXGBE_AUTOC_LMS_KX4_KX_KR_SGMII) { |
| links_reg = 0; /* Just in case Autoneg time = 0 */ |
| for (i = 0; i < IXGBE_AUTO_NEG_TIME; i++) { |
| links_reg = IXGBE_READ_REG(hw, IXGBE_LINKS); |
| if (links_reg & IXGBE_LINKS_KX_AN_COMP) |
| break; |
| msleep(100); |
| } |
| if (!(links_reg & IXGBE_LINKS_KX_AN_COMP)) { |
| status = IXGBE_ERR_AUTONEG_NOT_COMPLETE; |
| hw_dbg(hw, "Autoneg did not complete.\n"); |
| } |
| } |
| } |
| |
| /* Add delay to filter out noises during initial link setup */ |
| msleep(50); |
| |
| return status; |
| } |
| |
| /** |
| * ixgbe_disable_tx_laser_multispeed_fiber - Disable Tx laser |
| * @hw: pointer to hardware structure |
| * |
| * The base drivers may require better control over SFP+ module |
| * PHY states. This includes selectively shutting down the Tx |
| * laser on the PHY, effectively halting physical link. |
| **/ |
| void ixgbe_disable_tx_laser_multispeed_fiber(struct ixgbe_hw *hw) |
| { |
| u32 esdp_reg = IXGBE_READ_REG(hw, IXGBE_ESDP); |
| |
| /* Disable tx laser; allow 100us to go dark per spec */ |
| esdp_reg |= IXGBE_ESDP_SDP3; |
| IXGBE_WRITE_REG(hw, IXGBE_ESDP, esdp_reg); |
| IXGBE_WRITE_FLUSH(hw); |
| udelay(100); |
| } |
| |
| /** |
| * ixgbe_enable_tx_laser_multispeed_fiber - Enable Tx laser |
| * @hw: pointer to hardware structure |
| * |
| * The base drivers may require better control over SFP+ module |
| * PHY states. This includes selectively turning on the Tx |
| * laser on the PHY, effectively starting physical link. |
| **/ |
| void ixgbe_enable_tx_laser_multispeed_fiber(struct ixgbe_hw *hw) |
| { |
| u32 esdp_reg = IXGBE_READ_REG(hw, IXGBE_ESDP); |
| |
| /* Enable tx laser; allow 100ms to light up */ |
| esdp_reg &= ~IXGBE_ESDP_SDP3; |
| IXGBE_WRITE_REG(hw, IXGBE_ESDP, esdp_reg); |
| IXGBE_WRITE_FLUSH(hw); |
| msleep(100); |
| } |
| |
| /** |
| * ixgbe_flap_tx_laser_multispeed_fiber - Flap Tx laser |
| * @hw: pointer to hardware structure |
| * |
| * When the driver changes the link speeds that it can support, |
| * it sets autotry_restart to true to indicate that we need to |
| * initiate a new autotry session with the link partner. To do |
| * so, we set the speed then disable and re-enable the tx laser, to |
| * alert the link partner that it also needs to restart autotry on its |
| * end. This is consistent with true clause 37 autoneg, which also |
| * involves a loss of signal. |
| **/ |
| void ixgbe_flap_tx_laser_multispeed_fiber(struct ixgbe_hw *hw) |
| { |
| if (hw->mac.autotry_restart) { |
| ixgbe_disable_tx_laser_multispeed_fiber(hw); |
| ixgbe_enable_tx_laser_multispeed_fiber(hw); |
| hw->mac.autotry_restart = false; |
| } |
| } |
| |
| /** |
| * ixgbe_setup_mac_link_multispeed_fiber - Set MAC link speed |
| * @hw: pointer to hardware structure |
| * @speed: new link speed |
| * @autoneg: true if autonegotiation enabled |
| * @autoneg_wait_to_complete: true when waiting for completion is needed |
| * |
| * Set the link speed in the AUTOC register and restarts link. |
| **/ |
| s32 ixgbe_setup_mac_link_multispeed_fiber(struct ixgbe_hw *hw, |
| ixgbe_link_speed speed, bool autoneg, |
| bool autoneg_wait_to_complete) |
| { |
| 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 negotiation; |
| |
| /* Mask off requested but non-supported speeds */ |
| status = ixgbe_get_link_capabilities(hw, &link_speed, &negotiation); |
| 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 = ixgbe_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 */ |
| 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, |
| autoneg_wait_to_complete); |
| if (status != 0) |
| return status; |
| |
| /* Flap the tx laser if it has not already been done */ |
| ixgbe_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 = ixgbe_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 = ixgbe_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 */ |
| 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, |
| autoneg_wait_to_complete); |
| if (status != 0) |
| return status; |
| |
| /* Flap the tx laser if it has not already been done */ |
| ixgbe_flap_tx_laser(hw); |
| |
| /* Wait for the link partner to also set speed */ |
| msleep(100); |
| |
| /* If we have link, just jump out */ |
| status = ixgbe_check_link(hw, &link_speed, &link_up, false); |
| if (status != 0) |
| return status; |
| |
| if (link_up) |
| goto out; |
| } |
| |
| /* |
| * 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, 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_setup_mac_link_smartspeed - Set MAC link speed using SmartSpeed |
| * @hw: pointer to hardware structure |
| * @speed: new link speed |
| * @autoneg: true if autonegotiation enabled |
| * @autoneg_wait_to_complete: true when waiting for completion is needed |
| * |
| * Implements the Intel SmartSpeed algorithm. |
| **/ |
| s32 ixgbe_setup_mac_link_smartspeed(struct ixgbe_hw *hw, |
| ixgbe_link_speed speed, bool autoneg, |
| bool autoneg_wait_to_complete) |
| { |
| s32 status = 0; |
| ixgbe_link_speed link_speed = IXGBE_LINK_SPEED_UNKNOWN; |
| s32 i, j; |
| bool link_up = false; |
| u32 autoc_reg = IXGBE_READ_REG(hw, IXGBE_AUTOC); |
| |
| /* 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; |
| |
| if (speed & IXGBE_LINK_SPEED_100_FULL) |
| hw->phy.autoneg_advertised |= IXGBE_LINK_SPEED_100_FULL; |
| |
| /* |
| * Implement Intel SmartSpeed algorithm. SmartSpeed will reduce the |
| * autoneg advertisement if link is unable to be established at the |
| * highest negotiated rate. This can sometimes happen due to integrity |
| * issues with the physical media connection. |
| */ |
| |
| /* First, try to get link with full advertisement */ |
| hw->phy.smart_speed_active = false; |
| for (j = 0; j < IXGBE_SMARTSPEED_MAX_RETRIES; j++) { |
| status = ixgbe_setup_mac_link_82599(hw, speed, autoneg, |
| autoneg_wait_to_complete); |
| if (status != 0) |
| goto out; |
| |
| /* |
| * 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, or 200ms if KX/KX4/BX/BX4 is attempted, per |
| * Table 9 in the AN MAS. |
| */ |
| for (i = 0; i < 5; i++) { |
| msleep(100); |
| |
| /* If we have link, just jump out */ |
| status = ixgbe_check_link(hw, &link_speed, &link_up, |
| false); |
| if (status != 0) |
| goto out; |
| |
| if (link_up) |
| goto out; |
| } |
| } |
| |
| /* |
| * We didn't get link. If we advertised KR plus one of KX4/KX |
| * (or BX4/BX), then disable KR and try again. |
| */ |
| if (((autoc_reg & IXGBE_AUTOC_KR_SUPP) == 0) || |
| ((autoc_reg & IXGBE_AUTOC_KX4_KX_SUPP_MASK) == 0)) |
| goto out; |
| |
| /* Turn SmartSpeed on to disable KR support */ |
| hw->phy.smart_speed_active = true; |
| status = ixgbe_setup_mac_link_82599(hw, speed, autoneg, |
| autoneg_wait_to_complete); |
| if (status != 0) |
| goto out; |
| |
| /* |
| * Wait for the controller to acquire link. 600ms will allow for |
| * the AN link_fail_inhibit_timer as well for multiple cycles of |
| * parallel detect, both 10g and 1g. This allows for the maximum |
| * connect attempts as defined in the AN MAS table 73-7. |
| */ |
| for (i = 0; i < 6; i++) { |
| msleep(100); |
| |
| /* If we have link, just jump out */ |
| status = ixgbe_check_link(hw, &link_speed, &link_up, false); |
| if (status != 0) |
| goto out; |
| |
| if (link_up) |
| goto out; |
| } |
| |
| /* We didn't get link. Turn SmartSpeed back off. */ |
| hw->phy.smart_speed_active = false; |
| status = ixgbe_setup_mac_link_82599(hw, speed, autoneg, |
| autoneg_wait_to_complete); |
| |
| 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"); |
| return status; |
| } |
| |
| /** |
| * ixgbe_setup_mac_link_82599 - Set MAC link speed |
| * @hw: pointer to hardware structure |
| * @speed: new link speed |
| * @autoneg: true if autonegotiation enabled |
| * @autoneg_wait_to_complete: true when waiting for completion is needed |
| * |
| * Set the link speed in the AUTOC register and restarts link. |
| **/ |
| s32 ixgbe_setup_mac_link_82599(struct ixgbe_hw *hw, |
| ixgbe_link_speed speed, bool autoneg, |
| bool autoneg_wait_to_complete) |
| { |
| s32 status = 0; |
| u32 autoc = IXGBE_READ_REG(hw, IXGBE_AUTOC); |
| u32 autoc2 = IXGBE_READ_REG(hw, IXGBE_AUTOC2); |
| u32 start_autoc = autoc; |
| u32 orig_autoc = 0; |
| u32 link_mode = autoc & IXGBE_AUTOC_LMS_MASK; |
| u32 pma_pmd_1g = autoc & IXGBE_AUTOC_1G_PMA_PMD_MASK; |
| 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; |
| |
| /* Check to see if speed passed in is supported. */ |
| status = ixgbe_get_link_capabilities(hw, &link_capabilities, &autoneg); |
| if (status != 0) |
| goto out; |
| |
| speed &= link_capabilities; |
| |
| if (speed == IXGBE_LINK_SPEED_UNKNOWN) { |
| status = IXGBE_ERR_LINK_SETUP; |
| goto out; |
| } |
| |
| /* Use stored value (EEPROM defaults) of AUTOC to find KR/KX4 support*/ |
| if (hw->mac.orig_link_settings_stored) |
| orig_autoc = hw->mac.orig_autoc; |
| else |
| orig_autoc = autoc; |
| |
| if (link_mode == IXGBE_AUTOC_LMS_KX4_KX_KR || |
| link_mode == IXGBE_AUTOC_LMS_KX4_KX_KR_1G_AN || |
| link_mode == IXGBE_AUTOC_LMS_KX4_KX_KR_SGMII) { |
| /* Set KX4/KX/KR support according to speed requested */ |
| autoc &= ~(IXGBE_AUTOC_KX4_KX_SUPP_MASK | IXGBE_AUTOC_KR_SUPP); |
| if (speed & IXGBE_LINK_SPEED_10GB_FULL) |
| if (orig_autoc & IXGBE_AUTOC_KX4_SUPP) |
| autoc |= IXGBE_AUTOC_KX4_SUPP; |
| if ((orig_autoc & IXGBE_AUTOC_KR_SUPP) && |
| (hw->phy.smart_speed_active == false)) |
| autoc |= IXGBE_AUTOC_KR_SUPP; |
| 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)) { |
| /* Switch from 1G SFI to 10G SFI if requested */ |
| if ((speed == IXGBE_LINK_SPEED_10GB_FULL) && |
| (pma_pmd_10g_serial == IXGBE_AUTOC2_10G_SFI)) { |
| autoc &= ~IXGBE_AUTOC_LMS_MASK; |
| autoc |= IXGBE_AUTOC_LMS_10G_SERIAL; |
| } |
| } else if ((pma_pmd_10g_serial == IXGBE_AUTOC2_10G_SFI) && |
| (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)) { |
| autoc &= ~IXGBE_AUTOC_LMS_MASK; |
| if (autoneg) |
| autoc |= IXGBE_AUTOC_LMS_1G_AN; |
| else |
| autoc |= IXGBE_AUTOC_LMS_1G_LINK_NO_AN; |
| } |
| } |
| |
| if (autoc != start_autoc) { |
| /* Restart link */ |
| autoc |= IXGBE_AUTOC_AN_RESTART; |
| IXGBE_WRITE_REG(hw, IXGBE_AUTOC, autoc); |
| |
| /* Only poll for autoneg to complete if specified to do so */ |
| if (autoneg_wait_to_complete) { |
| if (link_mode == IXGBE_AUTOC_LMS_KX4_KX_KR || |
| link_mode == IXGBE_AUTOC_LMS_KX4_KX_KR_1G_AN || |
| link_mode == IXGBE_AUTOC_LMS_KX4_KX_KR_SGMII) { |
| links_reg = 0; /*Just in case Autoneg time=0*/ |
| for (i = 0; i < IXGBE_AUTO_NEG_TIME; i++) { |
| links_reg = |
| IXGBE_READ_REG(hw, IXGBE_LINKS); |
| if (links_reg & IXGBE_LINKS_KX_AN_COMP) |
| break; |
| msleep(100); |
| } |
| if (!(links_reg & IXGBE_LINKS_KX_AN_COMP)) { |
| status = |
| IXGBE_ERR_AUTONEG_NOT_COMPLETE; |
| hw_dbg(hw, "Autoneg did not complete.\n"); |
| } |
| } |
| } |
| |
| /* Add delay to filter out noises during initial link setup */ |
| msleep(50); |
| } |
| |
| out: |
| return status; |
| } |
| |
| /** |
| * ixgbe_setup_copper_link_82599 - Set the PHY autoneg advertised field |
| * @hw: pointer to hardware structure |
| * @speed: new link speed |
| * @autoneg: true if autonegotiation enabled |
| * @autoneg_wait_to_complete: true if waiting is needed to complete |
| * |
| * 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, |
| bool autoneg_wait_to_complete) |
| { |
| s32 status; |
| |
| /* Setup the PHY according to input speed */ |
| status = hw->phy.ops.setup_link_speed(hw, speed, autoneg, |
| autoneg_wait_to_complete); |
| /* Set up MAC */ |
| ixgbe_start_mac_link_82599(hw, autoneg_wait_to_complete); |
| |
| return status; |
| } |
| |
| /** |
| * ixgbe_reset_hw_82599 - 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. |
| **/ |
| s32 ixgbe_reset_hw_82599(struct ixgbe_hw *hw) |
| { |
| ixgbe_link_speed link_speed; |
| s32 status; |
| u32 ctrl, i, autoc, autoc2; |
| 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; |
| |
| /* 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); |
| |
| if (status == IXGBE_ERR_SFP_NOT_SUPPORTED) |
| goto reset_hw_out; |
| |
| /* 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; |
| } |
| |
| if (status == IXGBE_ERR_SFP_NOT_SUPPORTED) |
| goto reset_hw_out; |
| |
| /* Reset PHY */ |
| if (hw->phy.reset_disable == false && hw->phy.ops.reset != NULL) |
| 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); |
| |
| /* Poll for reset bit to self-clear indicating reset is complete */ |
| for (i = 0; i < 10; i++) { |
| udelay(1); |
| ctrl = IXGBE_READ_REG(hw, IXGBE_CTRL); |
| if (!(ctrl & IXGBE_CTRL_RST_MASK)) |
| break; |
| } |
| |
| 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 |
| * conditions. Between resets, it is necessary to stall to allow time |
| * for any pending HW events to complete. |
| */ |
| if (hw->mac.flags & IXGBE_FLAGS_DOUBLE_RESET_REQUIRED) { |
| hw->mac.flags &= ~IXGBE_FLAGS_DOUBLE_RESET_REQUIRED; |
| goto mac_reset_top; |
| } |
| |
| /* |
| * Store the original AUTOC/AUTOC2 values if they have not been |
| * stored off yet. Otherwise restore the stored original |
| * values since the reset operation sets back to defaults. |
| */ |
| autoc = IXGBE_READ_REG(hw, IXGBE_AUTOC); |
| autoc2 = IXGBE_READ_REG(hw, IXGBE_AUTOC2); |
| if (hw->mac.orig_link_settings_stored == false) { |
| hw->mac.orig_autoc = autoc; |
| hw->mac.orig_autoc2 = autoc2; |
| hw->mac.orig_link_settings_stored = true; |
| } else { |
| if (autoc != hw->mac.orig_autoc) |
| IXGBE_WRITE_REG(hw, IXGBE_AUTOC, (hw->mac.orig_autoc | |
| IXGBE_AUTOC_AN_RESTART)); |
| |
| 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_WRITE_REG(hw, IXGBE_AUTOC2, autoc2); |
| } |
| } |
| |
| /* 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); |
| |
| /* Store the permanent SAN mac address */ |
| hw->mac.ops.get_san_mac_addr(hw, hw->mac.san_addr); |
| |
| /* Add the SAN MAC address to the RAR only if it's a valid address */ |
| if (ixgbe_validate_mac_addr(hw->mac.san_addr) == 0) { |
| hw->mac.ops.set_rar(hw, hw->mac.num_rar_entries - 1, |
| 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; |
| |
| /* Reserve the last RAR for the SAN MAC address */ |
| hw->mac.num_rar_entries--; |
| } |
| |
| /* Store the alternative WWNN/WWPN prefix */ |
| hw->mac.ops.get_wwn_prefix(hw, &hw->mac.wwnn_prefix, |
| &hw->mac.wwpn_prefix); |
| |
| reset_hw_out: |
| return status; |
| } |
| |
| /** |
| * ixgbe_reinit_fdir_tables_82599 - Reinitialize Flow Director tables. |
| * @hw: pointer to hardware structure |
| **/ |
| s32 ixgbe_reinit_fdir_tables_82599(struct ixgbe_hw *hw) |
| { |
| int i; |
| u32 fdirctrl = IXGBE_READ_REG(hw, IXGBE_FDIRCTRL); |
| 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; |
| } |
| |
| IXGBE_WRITE_REG(hw, IXGBE_FDIRFREE, 0); |
| IXGBE_WRITE_FLUSH(hw); |
| /* |
| * 82599 adapters flow director init flow cannot be restarted, |
| * Workaround 82599 silicon errata by performing the following steps |
| * before re-writing the FDIRCTRL control register with the same value. |
| * - write 1 to bit 8 of FDIRCMD register & |
| * - write 0 to bit 8 of FDIRCMD register |
| */ |
| IXGBE_WRITE_REG(hw, IXGBE_FDIRCMD, |
| (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_WRITE_FLUSH(hw); |
| /* |
| * Clear FDIR Hash register to clear any leftover hashes |
| * waiting to be programmed. |
| */ |
| IXGBE_WRITE_REG(hw, IXGBE_FDIRHASH, 0x00); |
| IXGBE_WRITE_FLUSH(hw); |
| |
| IXGBE_WRITE_REG(hw, IXGBE_FDIRCTRL, fdirctrl); |
| IXGBE_WRITE_FLUSH(hw); |
| |
| /* 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) |
| break; |
| udelay(10); |
| } |
| if (i >= IXGBE_FDIR_INIT_DONE_POLL) { |
| hw_dbg(hw, "Flow Director Signature poll time exceeded!\n"); |
| return IXGBE_ERR_FDIR_REINIT_FAILED; |
| } |
| |
| /* Clear FDIR statistics registers (read to clear) */ |
| IXGBE_READ_REG(hw, IXGBE_FDIRUSTAT); |
| IXGBE_READ_REG(hw, IXGBE_FDIRFSTAT); |
| IXGBE_READ_REG(hw, IXGBE_FDIRMATCH); |
| IXGBE_READ_REG(hw, IXGBE_FDIRMISS); |
| IXGBE_READ_REG(hw, IXGBE_FDIRLEN); |
| |
| return 0; |
| } |
| |
| /** |
| * ixgbe_fdir_enable_82599 - Initialize Flow Director control registers |
| * @hw: pointer to hardware structure |
| * @fdirctrl: value to write to flow director control register |
| **/ |
| static void ixgbe_fdir_enable_82599(struct ixgbe_hw *hw, u32 fdirctrl) |
| { |
| int i; |
| |
| /* Prime the keys for hashing */ |
| IXGBE_WRITE_REG(hw, IXGBE_FDIRHKEY, IXGBE_ATR_BUCKET_HASH_KEY); |
| IXGBE_WRITE_REG(hw, IXGBE_FDIRSKEY, IXGBE_ATR_SIGNATURE_HASH_KEY); |
| |
| /* |
| * Poll init-done after we write the register. Estimated times: |
| * 10G: PBALLOC = 11b, timing is 60us |
| * 1G: PBALLOC = 11b, timing is 600us |
| * 100M: PBALLOC = 11b, timing is 6ms |
| * |
| * Multiple these timings by 4 if under full Rx load |
| * |
| * So we'll poll for IXGBE_FDIR_INIT_DONE_POLL times, sleeping for |
| * 1 msec per poll time. If we're at line rate and drop to 100M, then |
| * this might not finish in our poll time, but we can live with that |
| * for now. |
| */ |
| IXGBE_WRITE_REG(hw, IXGBE_FDIRCTRL, fdirctrl); |
| 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) |
| break; |
| msleep(1); |
| } |
| |
| if (i >= IXGBE_FDIR_INIT_DONE_POLL) |
| hw_dbg(hw, "Flow Director poll time exceeded!\n"); |
| } |
| |
| /** |
| * ixgbe_init_fdir_signature_82599 - Initialize Flow Director signature filters |
| * @hw: pointer to hardware structure |
| * @fdirctrl: value to write to flow director control register, initially |
| * contains just the value of the Rx packet buffer allocation |
| **/ |
| s32 ixgbe_init_fdir_signature_82599(struct ixgbe_hw *hw, u32 fdirctrl) |
| { |
| /* |
| * Continue setup of fdirctrl register bits: |
| * 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 filters are left |
| */ |
| fdirctrl |= (0x6 << IXGBE_FDIRCTRL_FLEX_SHIFT) | |
| (0xA << IXGBE_FDIRCTRL_MAX_LENGTH_SHIFT) | |
| (4 << IXGBE_FDIRCTRL_FULL_THRESH_SHIFT); |
| |
| /* write hashes and fdirctrl register, poll for completion */ |
| ixgbe_fdir_enable_82599(hw, fdirctrl); |
| |
| return 0; |
| } |
| |
| /** |
| * ixgbe_init_fdir_perfect_82599 - Initialize Flow Director perfect filters |
| * @hw: pointer to hardware structure |
| * @fdirctrl: value to write to flow director control register, initially |
| * contains just the value of the Rx packet buffer allocation |
| **/ |
| s32 ixgbe_init_fdir_perfect_82599(struct ixgbe_hw *hw, u32 fdirctrl) |
| { |
| /* |
| * 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) | |
| (4 << IXGBE_FDIRCTRL_FULL_THRESH_SHIFT); |
| |
| /* write hashes and fdirctrl register, poll for completion */ |
| ixgbe_fdir_enable_82599(hw, fdirctrl); |
| |
| return 0; |
| } |
| |
| /* |
| * These defines allow us to quickly generate all of the necessary instructions |
| * in the function below by simply calling out IXGBE_COMPUTE_SIG_HASH_ITERATION |
| * for values 0 through 15 |
| */ |
| #define IXGBE_ATR_COMMON_HASH_KEY \ |
| (IXGBE_ATR_BUCKET_HASH_KEY & IXGBE_ATR_SIGNATURE_HASH_KEY) |
| #define IXGBE_COMPUTE_SIG_HASH_ITERATION(_n) \ |
| do { \ |
| u32 n = (_n); \ |
| if (IXGBE_ATR_COMMON_HASH_KEY & (0x01 << n)) \ |
| common_hash ^= lo_hash_dword >> n; \ |
| else if (IXGBE_ATR_BUCKET_HASH_KEY & (0x01 << n)) \ |
| bucket_hash ^= lo_hash_dword >> n; \ |
| else if (IXGBE_ATR_SIGNATURE_HASH_KEY & (0x01 << n)) \ |
| sig_hash ^= lo_hash_dword << (16 - n); \ |
| if (IXGBE_ATR_COMMON_HASH_KEY & (0x01 << (n + 16))) \ |
| common_hash ^= hi_hash_dword >> n; \ |
| else if (IXGBE_ATR_BUCKET_HASH_KEY & (0x01 << (n + 16))) \ |
| 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); |
| |
| /** |
| * ixgbe_atr_compute_sig_hash_82599 - Compute the signature hash |
| * @stream: input bitstream to compute the hash on |
| * |
| * This function is almost identical to the function above but contains |
| * several optomizations such as unwinding all of the loops, letting the |
| * compiler work out all of the conditional ifs since the keys are static |
| * defines, and computing two keys at once since the hashed dword stream |
| * will be the same for both keys. |
| **/ |
| u32 ixgbe_atr_compute_sig_hash_82599(union ixgbe_atr_hash_dword input, |
| union ixgbe_atr_hash_dword common) |
| { |
| u32 hi_hash_dword, lo_hash_dword, flow_vm_vlan; |
| u32 sig_hash = 0, bucket_hash = 0, common_hash = 0; |
| |
| /* record the flow_vm_vlan bits as they are a key part to the hash */ |
| flow_vm_vlan = IXGBE_NTOHL(input.dword); |
| |
| /* generate common hash dword */ |
| hi_hash_dword = IXGBE_NTOHL(common.dword); |
| |
| /* low dword is word swapped version of common */ |
| lo_hash_dword = (hi_hash_dword >> 16) | (hi_hash_dword << 16); |
| |
| /* apply flow ID/VM pool/VLAN ID bits to hash words */ |
| hi_hash_dword ^= flow_vm_vlan ^ (flow_vm_vlan >> 16); |
| |
| /* Process bits 0 and 16 */ |
| IXGBE_COMPUTE_SIG_HASH_ITERATION(0); |
| |
| /* |
| * apply flow ID/VM pool/VLAN ID bits to lo hash dword, we had to |
| * delay this because bit 0 of the stream should not be processed |
| * so we do not add the vlan until after bit 0 was processed |
| */ |
| lo_hash_dword ^= flow_vm_vlan ^ (flow_vm_vlan << 16); |
| |
| /* Process remaining 30 bit of the key */ |
| IXGBE_COMPUTE_SIG_HASH_ITERATION(1); |
| IXGBE_COMPUTE_SIG_HASH_ITERATION(2); |
| IXGBE_COMPUTE_SIG_HASH_ITERATION(3); |
| IXGBE_COMPUTE_SIG_HASH_ITERATION(4); |
| IXGBE_COMPUTE_SIG_HASH_ITERATION(5); |
| IXGBE_COMPUTE_SIG_HASH_ITERATION(6); |
| IXGBE_COMPUTE_SIG_HASH_ITERATION(7); |
| IXGBE_COMPUTE_SIG_HASH_ITERATION(8); |
| IXGBE_COMPUTE_SIG_HASH_ITERATION(9); |
| IXGBE_COMPUTE_SIG_HASH_ITERATION(10); |
| IXGBE_COMPUTE_SIG_HASH_ITERATION(11); |
| IXGBE_COMPUTE_SIG_HASH_ITERATION(12); |
| IXGBE_COMPUTE_SIG_HASH_ITERATION(13); |
| IXGBE_COMPUTE_SIG_HASH_ITERATION(14); |
| IXGBE_COMPUTE_SIG_HASH_ITERATION(15); |
| |
| /* combine common_hash result with signature and bucket hashes */ |
| bucket_hash ^= common_hash; |
| bucket_hash &= IXGBE_ATR_HASH_MASK; |
| |
| sig_hash ^= common_hash << 16; |
| sig_hash &= IXGBE_ATR_HASH_MASK << 16; |
| |
| /* return completed signature hash */ |
| return sig_hash ^ bucket_hash; |
| } |
| |
| /** |
| * ixgbe_atr_add_signature_filter_82599 - Adds a signature hash filter |
| * @hw: pointer to hardware structure |
| * @input: unique input dword |
| * @common: compressed common input dword |
| * @queue: queue index to direct traffic to |
| **/ |
| 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; |
| |
| /* |
| * 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) { |
| case IXGBE_ATR_FLOW_TYPE_TCPV4: |
| case IXGBE_ATR_FLOW_TYPE_UDPV4: |
| case IXGBE_ATR_FLOW_TYPE_SCTPV4: |
| case IXGBE_ATR_FLOW_TYPE_TCPV6: |
| case IXGBE_ATR_FLOW_TYPE_UDPV6: |
| case IXGBE_ATR_FLOW_TYPE_SCTPV6: |
| break; |
| default: |
| hw_dbg(hw, " Error on flow type input\n"); |
| return IXGBE_ERR_CONFIG; |
| } |
| |
| /* 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; |
| fdircmd |= (u32)queue << IXGBE_FDIRCMD_RX_QUEUE_SHIFT; |
| |
| /* |
| * The lower 32-bits of fdirhashcmd is for FDIRHASH, the upper 32-bits |
| * is for FDIRCMD. Then do a 64-bit register write from FDIRHASH. |
| */ |
| fdirhashcmd = (u64)fdircmd << 32; |
| fdirhashcmd |= ixgbe_atr_compute_sig_hash_82599(input, common); |
| IXGBE_WRITE_REG64(hw, IXGBE_FDIRHASH, fdirhashcmd); |
| |
| hw_dbg(hw, "Tx Queue=%x hash=%x\n", queue, (u32)fdirhashcmd); |
| |
| return 0; |
| } |
| |
| #define IXGBE_COMPUTE_BKT_HASH_ITERATION(_n) \ |
| do { \ |
| u32 n = (_n); \ |
| if (IXGBE_ATR_BUCKET_HASH_KEY & (0x01 << n)) \ |
| bucket_hash ^= lo_hash_dword >> n; \ |
| if (IXGBE_ATR_BUCKET_HASH_KEY & (0x01 << (n + 16))) \ |
| bucket_hash ^= hi_hash_dword >> n; \ |
| } while (0); |
| |
| /** |
| * ixgbe_atr_compute_perfect_hash_82599 - Compute the perfect filter hash |
| * @atr_input: input bitstream to compute the hash on |
| * @input_mask: mask for the input bitstream |
| * |
| * This function serves two main purposes. First it applys the input_mask |
| * to the atr_input resulting in a cleaned up atr_input data stream. |
| * Secondly it computes the hash and stores it in the bkt_hash field at |
| * the end of the input byte stream. This way it will be available for |
| * future use without needing to recompute the hash. |
| **/ |
| void ixgbe_atr_compute_perfect_hash_82599(union ixgbe_atr_input *input, |
| union ixgbe_atr_input *input_mask) |
| { |
| |
| u32 hi_hash_dword, lo_hash_dword, flow_vm_vlan; |
| u32 bucket_hash = 0; |
| |
| /* 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]; |
| |
| /* record the flow_vm_vlan bits as they are a key part to the hash */ |
| flow_vm_vlan = IXGBE_NTOHL(input->dword_stream[0]); |
| |
| /* generate common hash dword */ |
| hi_hash_dword = IXGBE_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]); |
| |
| /* low dword is word swapped version of common */ |
| lo_hash_dword = (hi_hash_dword >> 16) | (hi_hash_dword << 16); |
| |
| /* apply flow ID/VM pool/VLAN ID bits to hash words */ |
| hi_hash_dword ^= flow_vm_vlan ^ (flow_vm_vlan >> 16); |
| |
| /* Process bits 0 and 16 */ |
| IXGBE_COMPUTE_BKT_HASH_ITERATION(0); |
| |
| /* |
| * apply flow ID/VM pool/VLAN ID bits to lo hash dword, we had to |
| * delay this because bit 0 of the stream should not be processed |
| * so we do not add the vlan until after bit 0 was processed |
| */ |
| 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); |
| |
| /* |
| * Limit hash to 13 bits since max bucket count is 8K. |
| * Store result at the end of the input stream. |
| */ |
| input->formatted.bkt_hash = bucket_hash & 0x1FFF; |
| } |
| |
| /** |
| * ixgbe_get_fdirtcpm_82599 - generate a tcp port from atr_input_masks |
| * @input_mask: mask to be bit swapped |
| * |
| * The source and destination port masks for flow director are bit swapped |
| * in that bit 15 effects bit 0, 14 effects 1, 13, 2 etc. In order to |
| * generate a correctly swapped value we need to bit swap the mask and that |
| * is what is accomplished by this function. |
| **/ |
| static u32 ixgbe_get_fdirtcpm_82599(union ixgbe_atr_input *input_mask) |
| { |
| u32 mask = IXGBE_NTOHS(input_mask->formatted.dst_port); |
| mask <<= IXGBE_FDIRTCPM_DPORTM_SHIFT; |
| mask |= IXGBE_NTOHS(input_mask->formatted.src_port); |
| mask = ((mask & 0x55555555) << 1) | ((mask & 0xAAAAAAAA) >> 1); |
| mask = ((mask & 0x33333333) << 2) | ((mask & 0xCCCCCCCC) >> 2); |
| mask = ((mask & 0x0F0F0F0F) << 4) | ((mask & 0xF0F0F0F0) >> 4); |
| return ((mask & 0x00FF00FF) << 8) | ((mask & 0xFF00FF00) >> 8); |
| } |
| |
| /* |
| * These two macros are meant to address the fact that we have registers |
| * that are either all or in part big-endian. As a result on big-endian |
| * systems we will end up byte swapping the value to little-endian before |
| * it is byte swapped again and written to the hardware in the original |
| * big-endian format. |
| */ |
| #define IXGBE_STORE_AS_BE32(_value) \ |
| (((u32)(_value) >> 24) | (((u32)(_value) & 0x00FF0000) >> 8) | \ |
| (((u32)(_value) & 0x0000FF00) << 8) | ((u32)(_value) << 24)) |
| |
| #define IXGBE_WRITE_REG_BE32(a, reg, value) \ |
| IXGBE_WRITE_REG((a), (reg), IXGBE_STORE_AS_BE32(IXGBE_NTOHL(value))) |
| |
| #define IXGBE_STORE_AS_BE16(_value) \ |
| IXGBE_NTOHS(((u16)(_value) >> 8) | ((u16)(_value) << 8)) |
| |
| s32 ixgbe_fdir_set_input_mask_82599(struct ixgbe_hw *hw, |
| union ixgbe_atr_input *input_mask) |
| { |
| /* mask IPv6 since it is currently not supported */ |
| u32 fdirm = IXGBE_FDIRM_DIPv6; |
| u32 fdirtcpm; |
| |
| /* |
| * Program the relevant mask registers. If src/dst_port or src/dst_addr |
| * are zero, then assume a full mask for that field. Also assume that |
| * a VLAN of 0 is unspecified, so mask that out as well. L4type |
| * cannot be masked out in this implementation. |
| * |
| * This also assumes IPv4 only. IPv6 masking isn't supported at this |
| * point in time. |
| */ |
| |
| /* verify bucket hash is cleared on hash generation */ |
| if (input_mask->formatted.bkt_hash) |
| hw_dbg(hw, " bucket hash should always be 0 in mask\n"); |
| |
| /* Program FDIRM and verify partial masks */ |
| switch (input_mask->formatted.vm_pool & 0x7F) { |
| case 0x0: |
| fdirm |= IXGBE_FDIRM_POOL; |
| case 0x7F: |
| break; |
| default: |
| hw_dbg(hw, " Error on vm pool mask\n"); |
| return IXGBE_ERR_CONFIG; |
| } |
| |
| switch (input_mask->formatted.flow_type & IXGBE_ATR_L4TYPE_MASK) { |
| case 0x0: |
| fdirm |= IXGBE_FDIRM_L4P; |
| if (input_mask->formatted.dst_port || |
| input_mask->formatted.src_port) { |
| hw_dbg(hw, " Error on src/dst port mask\n"); |
| return IXGBE_ERR_CONFIG; |
| } |
| case IXGBE_ATR_L4TYPE_MASK: |
| break; |
| default: |
| hw_dbg(hw, " Error on flow type mask\n"); |
| return IXGBE_ERR_CONFIG; |
| } |
| |
| switch (IXGBE_NTOHS(input_mask->formatted.vlan_id) & 0xEFFF) { |
| case 0x0000: |
| /* mask VLAN ID, fall through to mask VLAN priority */ |
| fdirm |= IXGBE_FDIRM_VLANID; |
| case 0x0FFF: |
| /* mask VLAN priority */ |
| fdirm |= IXGBE_FDIRM_VLANP; |
| break; |
| case 0xE000: |
| /* mask VLAN ID only, fall through */ |
| fdirm |= IXGBE_FDIRM_VLANID; |
| case 0xEFFF: |
| /* no VLAN fields masked */ |
| break; |
| default: |
| hw_dbg(hw, " Error on VLAN mask\n"); |
| return IXGBE_ERR_CONFIG; |
| } |
| |
| switch (input_mask->formatted.flex_bytes & 0xFFFF) { |
| case 0x0000: |
| /* Mask Flex Bytes, fall through */ |
| fdirm |= IXGBE_FDIRM_FLEX; |
| case 0xFFFF: |
| break; |
| default: |
| hw_dbg(hw, " Error on flexible byte mask\n"); |
| return IXGBE_ERR_CONFIG; |
| } |
| |
| /* Now mask VM pool and destination IPv6 - bits 5 and 2 */ |
| IXGBE_WRITE_REG(hw, IXGBE_FDIRM, fdirm); |
| |
| /* store the TCP/UDP port masks, bit reversed from port layout */ |
| fdirtcpm = ixgbe_get_fdirtcpm_82599(input_mask); |
| |
| /* write both the same so that UDP and TCP use the same mask */ |
| IXGBE_WRITE_REG(hw, IXGBE_FDIRTCPM, ~fdirtcpm); |
| IXGBE_WRITE_REG(hw, IXGBE_FDIRUDPM, ~fdirtcpm); |
| |
| /* store source and destination IP masks (big-enian) */ |
| IXGBE_WRITE_REG_BE32(hw, IXGBE_FDIRSIP4M, |
| ~input_mask->formatted.src_ip[0]); |
| IXGBE_WRITE_REG_BE32(hw, IXGBE_FDIRDIP4M, |
| ~input_mask->formatted.dst_ip[0]); |
| |
| return 0; |
| } |
| |
| s32 ixgbe_fdir_write_perfect_filter_82599(struct ixgbe_hw *hw, |
| union ixgbe_atr_input *input, |
| u16 soft_id, u8 queue) |
| { |
| u32 fdirport, fdirvlan, fdirhash, fdircmd; |
| |
| /* currently IPv6 is not supported, must be programmed with 0 */ |
| IXGBE_WRITE_REG_BE32(hw, IXGBE_FDIRSIPv6(0), |
| input->formatted.src_ip[0]); |
| IXGBE_WRITE_REG_BE32(hw, IXGBE_FDIRSIPv6(1), |
| input->formatted.src_ip[1]); |
| IXGBE_WRITE_REG_BE32(hw, IXGBE_FDIRSIPv6(2), |
| input->formatted.src_ip[2]); |
| |
| /* record the source address (big-endian) */ |
| IXGBE_WRITE_REG_BE32(hw, IXGBE_FDIRIPSA, input->formatted.src_ip[0]); |
| |
| /* record the first 32 bits of the destination address (big-endian) */ |
| IXGBE_WRITE_REG_BE32(hw, IXGBE_FDIRIPDA, input->formatted.dst_ip[0]); |
| |
| /* record source and destination port (little-endian)*/ |
| fdirport = IXGBE_NTOHS(input->formatted.dst_port); |
| fdirport <<= IXGBE_FDIRPORT_DESTINATION_SHIFT; |
| fdirport |= IXGBE_NTOHS(input->formatted.src_port); |
| IXGBE_WRITE_REG(hw, IXGBE_FDIRPORT, fdirport); |
| |
| /* record vlan (little-endian) and flex_bytes(big-endian) */ |
| fdirvlan = IXGBE_STORE_AS_BE16(input->formatted.flex_bytes); |
| fdirvlan <<= IXGBE_FDIRVLAN_FLEX_SHIFT; |
| fdirvlan |= IXGBE_NTOHS(input->formatted.vlan_id); |
| IXGBE_WRITE_REG(hw, IXGBE_FDIRVLAN, fdirvlan); |
| |
| /* configure FDIRHASH register */ |
| fdirhash = input->formatted.bkt_hash; |
| fdirhash |= soft_id << IXGBE_FDIRHASH_SIG_SW_INDEX_SHIFT; |
| IXGBE_WRITE_REG(hw, IXGBE_FDIRHASH, fdirhash); |
| |
| /* |
| * flush all previous writes to make certain registers are |
| * programmed prior to issuing the command |
| */ |
| IXGBE_WRITE_FLUSH(hw); |
| |
| /* configure FDIRCMD register */ |
| fdircmd = IXGBE_FDIRCMD_CMD_ADD_FLOW | IXGBE_FDIRCMD_FILTER_UPDATE | |
| IXGBE_FDIRCMD_LAST | IXGBE_FDIRCMD_QUEUE_EN; |
| if (queue == IXGBE_FDIR_DROP_QUEUE) |
| fdircmd |= IXGBE_FDIRCMD_DROP; |
| fdircmd |= input->formatted.flow_type << IXGBE_FDIRCMD_FLOW_TYPE_SHIFT; |
| fdircmd |= (u32)queue << IXGBE_FDIRCMD_RX_QUEUE_SHIFT; |
| fdircmd |= (u32)input->formatted.vm_pool << IXGBE_FDIRCMD_VT_POOL_SHIFT; |
| |
| IXGBE_WRITE_REG(hw, IXGBE_FDIRCMD, fdircmd); |
| |
| return 0; |
| } |
| |
| s32 ixgbe_fdir_erase_perfect_filter_82599(struct ixgbe_hw *hw, |
| union ixgbe_atr_input *input, |
| u16 soft_id) |
| { |
| u32 fdirhash; |
| u32 fdircmd = 0; |
| u32 retry_count; |
| s32 err = 0; |
| |
| /* configure FDIRHASH register */ |
| fdirhash = input->formatted.bkt_hash; |
| fdirhash |= soft_id << IXGBE_FDIRHASH_SIG_SW_INDEX_SHIFT; |
| IXGBE_WRITE_REG(hw, IXGBE_FDIRHASH, fdirhash); |
| |
| /* flush hash to HW */ |
| IXGBE_WRITE_FLUSH(hw); |
| |
| /* 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; |
| } |
| |
| 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); |
| IXGBE_WRITE_FLUSH(hw); |
| IXGBE_WRITE_REG(hw, IXGBE_FDIRCMD, |
| IXGBE_FDIRCMD_CMD_REMOVE_FLOW); |
| } |
| |
| return err; |
| } |
| |
| /** |
| * ixgbe_fdir_add_perfect_filter_82599 - Adds a perfect filter |
| * @hw: pointer to hardware structure |
| * @input: input bitstream |
| * @input_mask: mask for the input bitstream |
| * @soft_id: software index for the filters |
| * @queue: queue index to direct traffic to |
| * |
| * Note that the caller to this function must lock before calling, since the |
| * hardware writes must be protected from one another. |
| **/ |
| s32 ixgbe_fdir_add_perfect_filter_82599(struct ixgbe_hw *hw, |
| union ixgbe_atr_input *input, |
| union ixgbe_atr_input *input_mask, |
| u16 soft_id, u8 queue) |
| { |
| s32 err = IXGBE_ERR_CONFIG; |
| |
| /* |
| * Check flow_type formatting, and bail out before we touch the hardware |
| * if there's a configuration issue |
| */ |
| switch (input->formatted.flow_type) { |
| case IXGBE_ATR_FLOW_TYPE_IPV4: |
| input_mask->formatted.flow_type = IXGBE_ATR_L4TYPE_IPV6_MASK; |
| if (input->formatted.dst_port || input->formatted.src_port) { |
| hw_dbg(hw, " Error on src/dst port\n"); |
| return IXGBE_ERR_CONFIG; |
| } |
| break; |
| case IXGBE_ATR_FLOW_TYPE_SCTPV4: |
| if (input->formatted.dst_port || input->formatted.src_port) { |
| hw_dbg(hw, " Error on src/dst port\n"); |
| return IXGBE_ERR_CONFIG; |
| } |
| case IXGBE_ATR_FLOW_TYPE_TCPV4: |
| case IXGBE_ATR_FLOW_TYPE_UDPV4: |
| input_mask->formatted.flow_type = IXGBE_ATR_L4TYPE_IPV6_MASK | |
| IXGBE_ATR_L4TYPE_MASK; |
| break; |
| default: |
| hw_dbg(hw, " Error on flow type input\n"); |
| return err; |
| } |
| |
| /* program input mask into the HW */ |
| err = ixgbe_fdir_set_input_mask_82599(hw, input_mask); |
| if (err) |
| return err; |
| |
| /* apply mask and compute/store hash */ |
| ixgbe_atr_compute_perfect_hash_82599(input, input_mask); |
| |
| /* program filters to filter memory */ |
| return ixgbe_fdir_write_perfect_filter_82599(hw, input, |
| soft_id, queue); |
| } |
| |
| #ifdef ENABLE_DNA |
| |
| #define SET_BIT(value, shift) (value |= (1 << (shift-1))) |
| #define IXGBE_FTQF_PROTOCOL_OTHER 0x00000003 |
| |
| /* |
| The 5-tuple filters are configured via the FTQF, SDPQF, L34TIMIR, DAQF, |
| and SAQF registers, as follows (described by filter): |
| |
| * Protocol: Identifies the IP protocol, part of the 5-tuple. Enabled by a bit in the mask field. |
| Supported protocol fields are TCP, UDP, SCTP or other (neither TCP nor UDP nor SCTP). |
| * Source address: Identifies the IP source address, part of the 5-tuple. Enabled by a bit in the mask field. Only IPv4 addresses are supported. |
| * Destination address: Identifies the IP destination address, part of the 5-tuple. Enabled by a bit in the mask field. Only IPv4 addresses are supported. |
| * Source port: Identifies the TCP/UDP/SCTP source port, part of the 5-tuple. Enabled by a bit in the mask field. |
| * Destination port: Identifies the TCP/UDP/SCTP destination port, part of the 5-tuple queue filters. Enabled by a bit in the mask field. |
| * Queue Enable: Enables the packets routing to queues based on the Rx Queue index of the filter. |
| * Rx Queue: Determines the Rx queue for packets that match this filter. |
| * Pool: Applies only in the virtualized case (while Pool Mask bit = 0b). This field must match one of the pools enabled for this packet in the L2 filters.b |
| In non-virtualized case the Pool Mask bit must be set to 1b.b |
| In the virtualized case, the pool must be defined (Pool Mask = 0b and Pool = valid index). |
| The Rx Queue field defines the absolute queue index. In case of mirroring or replication, |
| only the copy of the packet destined to the matched pool in the filter is routed according to the Rx Queue field. |
| * Mask: A 5-bit field that masks each of the fields in the 5-tuple (L4 protocol, IP addresses, TCP/ UDP ports). |
| The filter is a logical AND of the non-masked 5-tuple fields. If all 5-tuple fields are masked, |
| the filter is not used for queue routing. |
| * Priority: A 3-bit field that defines one of seven priority levels (001b-111b), with 111b as the highest priority. |
| Software must insure that a packet never matches two or more filters with the same priority value. |
| |
| Note: There are 128 different 5-tuple filter configuration registers sets, with indexes [0] to [127]. |
| The mapping to a specific Rx queue is done by the Rx Queue field in the L34TIMIR register, |
| and not by the index of the register set. |
| */ |
| |
| s32 ixgbe_ftqf_add_filter(struct ixgbe_hw *hw, u8 proto, u32 saddr, u16 sport, u32 daddr, u16 dport, u8 rx_queue, u8 filter_id) |
| { |
| u32 ftqf; |
| u32 l34t_imir = 0; |
| u8 pool = 0; |
| u8 priority = 1; |
| u8 mask = 0; |
| u8 pool_mask = 1; /* 1 = ignore */ |
| int debug = 0; |
| |
| if(debug) |
| printk("ixgbe_ftqf_add_filter(proto=%u, %u:%u->%u:%u, queue=%u, filter_id=%u)\n", |
| proto, saddr, sport, daddr, dport, rx_queue, filter_id); |
| |
| if(filter_id >= 128) /* Filter Id 0..127 */ |
| return IXGBE_ERR_CONFIG; |
| |
| switch(proto) { |
| case 6: /* TCP */ |
| ftqf = IXGBE_FTQF_PROTOCOL_TCP; |
| break; |
| case 17: /* UDP */ |
| ftqf = IXGBE_FTQF_PROTOCOL_UDP; |
| break; |
| case 132: /* SCTP */ |
| ftqf = IXGBE_FTQF_PROTOCOL_SCTP; |
| break; |
| default: |
| ftqf = IXGBE_FTQF_PROTOCOL_OTHER; |
| SET_BIT(mask, 5); |
| } |
| |
| /* Mask bit set to 1 means ignore */ |
| if(saddr == 0) SET_BIT(mask, 1); |
| if(daddr == 0) SET_BIT(mask, 2); |
| if(sport == 0) SET_BIT(mask, 3); |
| if(dport == 0) SET_BIT(mask, 4); |
| |
| ftqf |= priority << IXGBE_FTQF_PRIORITY_SHIFT; |
| ftqf |= pool << IXGBE_FTQF_POOL_SHIFT; |
| ftqf |= mask << IXGBE_FTQF_5TUPLE_MASK_SHIFT; |
| if(pool_mask) ftqf |= IXGBE_FTQF_POOL_MASK_EN; |
| ftqf |= IXGBE_FTQF_QUEUE_ENABLE; /* When set, enables filtering of Rx packets by |
| the 5-tuple defined in this filter to the |
| queue indicated in register L34TIMIR */ |
| |
| l34t_imir = IXGBE_IMIR_LLI_EN_82599 /* Enable LLI */ |
| | IXGBE_IMIR_SIZE_BP_82599 /* Packet size bypass */ |
| | IXGBE_IMIR_CTRL_BP_82599 /* Bypass check of control bits (bit 19) */ |
| ; |
| l34t_imir |= rx_queue << IXGBE_IMIR_RX_QUEUE_SHIFT_82599; |
| |
| /* I assume IPs are NOT in big endian so I need to convert them */ |
| saddr = htonl(saddr), daddr = htonl(daddr); |
| IXGBE_WRITE_REG(hw, IXGBE_SAQF(filter_id), saddr); |
| IXGBE_WRITE_REG(hw, IXGBE_DAQF(filter_id), daddr); |
| |
| /* I assume ports are NOT in big endian so I need to convert them */ |
| sport = htons(sport), dport = htons(dport); |
| IXGBE_WRITE_REG(hw, IXGBE_SDPQF(filter_id), sport | (dport << 16)); |
| |
| IXGBE_WRITE_REG(hw, IXGBE_L34T_IMIR(filter_id), l34t_imir); |
| IXGBE_WRITE_REG(hw, IXGBE_FTQF(filter_id), ftqf); |
| |
| if(debug) |
| printk("ixgbe_ftqf_add_filter() [ftqf=%u][l34t_imir=%u]\n", ftqf, l34t_imir); |
| |
| return 0; |
| } |
| |
| #endif /* ENABLE_DNA */ |
| |
| /** |
| * ixgbe_read_analog_reg8_82599 - Reads 8 bit Omer analog register |
| * @hw: pointer to hardware structure |
| * @reg: analog register to read |
| * @val: read value |
| * |
| * Performs read operation to Omer analog register specified. |
| **/ |
| s32 ixgbe_read_analog_reg8_82599(struct ixgbe_hw *hw, u32 reg, u8 *val) |
| { |
| u32 core_ctl; |
| |
| IXGBE_WRITE_REG(hw, IXGBE_CORECTL, IXGBE_CORECTL_WRITE_CMD | |
| (reg << 8)); |
| IXGBE_WRITE_FLUSH(hw); |
| udelay(10); |
| core_ctl = IXGBE_READ_REG(hw, IXGBE_CORECTL); |
| *val = (u8)core_ctl; |
| |
| return 0; |
| } |
| |
| /** |
| * ixgbe_write_analog_reg8_82599 - Writes 8 bit Omer analog register |
| * @hw: pointer to hardware structure |
| * @reg: atlas register to write |
| * @val: value to write |
| * |
| * Performs write operation to Omer analog register specified. |
| **/ |
| s32 ixgbe_write_analog_reg8_82599(struct ixgbe_hw *hw, u32 reg, u8 val) |
| { |
| u32 core_ctl; |
| |
| core_ctl = (reg << 8) | val; |
| IXGBE_WRITE_REG(hw, IXGBE_CORECTL, core_ctl); |
| IXGBE_WRITE_FLUSH(hw); |
| udelay(10); |
| |
| return 0; |
| } |
| |
| /** |
| * ixgbe_start_hw_82599 - Prepare hardware for Tx/Rx |
| * @hw: pointer to hardware structure |
| * |
| * Starts the hardware using the generic start_hw function |
| * and the generation start_hw function. |
| * Then performs revision-specific operations, if any. |
| **/ |
| s32 ixgbe_start_hw_82599(struct ixgbe_hw *hw) |
| { |
| s32 ret_val = 0; |
| |
| ret_val = ixgbe_start_hw_generic(hw); |
| if (ret_val != 0) |
| goto out; |
| |
| ret_val = ixgbe_start_hw_gen2(hw); |
| if (ret_val != 0) |
| goto out; |
| |
| /* We need to run link autotry after the driver loads */ |
| hw->mac.autotry_restart = true; |
| |
| if (ret_val == 0) |
| ret_val = ixgbe_verify_fw_version_82599(hw); |
| out: |
| return ret_val; |
| } |
| |
| /** |
| * ixgbe_identify_phy_82599 - Get physical layer module |
| * @hw: pointer to hardware structure |
| * |
| * Determines the physical layer module found on the current adapter. |
| * If PHY already detected, maintains current PHY type in hw struct, |
| * otherwise executes the PHY detection routine. |
| **/ |
| s32 ixgbe_identify_phy_82599(struct ixgbe_hw *hw) |
| { |
| s32 status = IXGBE_ERR_PHY_ADDR_INVALID; |
| |
| /* Detect PHY if not unknown - returns success if already detected. */ |
| status = ixgbe_identify_phy_generic(hw); |
| if (status != 0) { |
| /* 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_module_generic(hw); |
| } |
| |
| /* Set PHY type none if no PHY detected */ |
| if (hw->phy.type == ixgbe_phy_unknown) { |
| hw->phy.type = ixgbe_phy_none; |
| status = 0; |
| } |
| |
| /* 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; |
| |
| 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. |
| **/ |
| 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, IXGBE_MDIO_PHY_EXT_ABILITY, |
| IXGBE_MDIO_PMA_PMD_DEV_TYPE, &ext_ability); |
| if (ext_ability & IXGBE_MDIO_PHY_10GBASET_ABILITY) |
| physical_layer |= IXGBE_PHYSICAL_LAYER_10GBASE_T; |
| if (ext_ability & IXGBE_MDIO_PHY_1000BASET_ABILITY) |
| physical_layer |= IXGBE_PHYSICAL_LAYER_1000BASE_T; |
| if (ext_ability & IXGBE_MDIO_PHY_100BASETX_ABILITY) |
| 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; |
| else if (comp_codes_1g & IXGBE_SFF_1GBASESX_CAPABLE) |
| physical_layer = IXGBE_PHYSICAL_LAYER_1000BASE_SX; |
| 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 |
| * |
| * Enables the Rx DMA unit for 82599 |
| **/ |
| s32 ixgbe_enable_rx_dma_82599(struct ixgbe_hw *hw, u32 regval) |
| { |
| |
| /* |
| * Workaround for 82599 silicon errata when enabling the Rx datapath. |
| * If traffic is incoming before we enable the Rx unit, it could hang |
| * the Rx DMA unit. Therefore, make sure the security engine is |
| * completely disabled prior to enabling the Rx unit. |
| */ |
| |
| hw->mac.ops.disable_sec_rx_path(hw); |
| |
| IXGBE_WRITE_REG(hw, IXGBE_RXCTRL, regval); |
| |
| hw->mac.ops.enable_sec_rx_path(hw); |
| |
| return 0; |
| } |
| |
| /** |
| * ixgbe_verify_fw_version_82599 - verify fw version for 82599 |
| * @hw: pointer to hardware structure |
| * |
| * Verifies that installed the firmware version is 0.6 or higher |
| * for SFI devices. All 82599 SFI devices should have version 0.6 or higher. |
| * |
| * Returns IXGBE_ERR_EEPROM_VERSION if the FW is not present or |
| * if the FW version is not supported. |
| **/ |
| static s32 ixgbe_verify_fw_version_82599(struct ixgbe_hw *hw) |
| { |
| s32 status = IXGBE_ERR_EEPROM_VERSION; |
| u16 fw_offset, fw_ptp_cfg_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; |
| } |
| |
| /* get the offset to the Firmware Module block */ |
| hw->eeprom.ops.read(hw, IXGBE_FW_PTR, &fw_offset); |
| |
| if ((fw_offset == 0) || (fw_offset == 0xFFFF)) |
| goto fw_version_out; |
| |
| /* 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); |
| |
| if ((fw_ptp_cfg_offset == 0) || (fw_ptp_cfg_offset == 0xFFFF)) |
| goto fw_version_out; |
| |
| /* get the firmware version */ |
| hw->eeprom.ops.read(hw, (fw_ptp_cfg_offset + |
| IXGBE_FW_PATCH_VERSION_4), &fw_version); |
| |
| if (fw_version > 0x5) |
| status = 0; |
| |
| fw_version_out: |
| return status; |
| } |
| |
| /** |
| * ixgbe_verify_lesm_fw_enabled_82599 - Checks LESM FW module state. |
| * @hw: pointer to hardware structure |
| * |
| * 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) |
| { |
| 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; |
| |
| /* 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; |
| |
| /* 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; |
| |
| out: |
| return lesm_enabled; |
| } |
| |
| /** |
| * ixgbe_read_eeprom_buffer_82599 - Read EEPROM word(s) using |
| * fastest available method |
| * |
| * @hw: pointer to hardware structure |
| * @offset: offset of word in EEPROM to read |
| * @words: number of words |
| * @data: word(s) read from the EEPROM |
| * |
| * Retrieves 16 bit word(s) read from EEPROM |
| **/ |
| static s32 ixgbe_read_eeprom_buffer_82599(struct ixgbe_hw *hw, u16 offset, |
| 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, |
| * 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); |
| |
| return ret_val; |
| } |
| |
| /** |
| * ixgbe_read_eeprom_82599 - Read EEPROM word using |
| * fastest available method |
| * |
| * @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 |
| **/ |
| static s32 ixgbe_read_eeprom_82599(struct ixgbe_hw *hw, |
| 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); |
| |
| return ret_val; |
| } |
| |
| |