| Author | Tokens | Token Proportion | Commits | Commit Proportion |
|---|---|---|---|---|
| Peter P. Waskiewicz Jr | 3066 | 39.57% | 17 | 13.49% |
| Donald Skidmore | 1820 | 23.49% | 35 | 27.78% |
| Alexander Duyck | 1297 | 16.74% | 7 | 5.56% |
| Emil Tantilov | 640 | 8.26% | 27 | 21.43% |
| Mark D Rustad | 419 | 5.41% | 9 | 7.14% |
| Jacob E Keller | 197 | 2.54% | 9 | 7.14% |
| Mallikarjuna R Chilakala | 181 | 2.34% | 5 | 3.97% |
| Cathy Zhou | 24 | 0.31% | 1 | 0.79% |
| Atita Shirwaikar | 24 | 0.31% | 1 | 0.79% |
| Greg Rose | 20 | 0.26% | 2 | 1.59% |
| Joshua Hay | 16 | 0.21% | 2 | 1.59% |
| Anjali Singhai Jain | 13 | 0.17% | 1 | 0.79% |
| Tony Nguyen | 11 | 0.14% | 2 | 1.59% |
| John Fastabend | 11 | 0.14% | 3 | 2.38% |
| Yi Zou | 5 | 0.06% | 1 | 0.79% |
| Jeff Kirsher | 2 | 0.03% | 2 | 1.59% |
| Joe Perches | 1 | 0.01% | 1 | 0.79% |
| Fan Du | 1 | 0.01% | 1 | 0.79% |
| Total | 7748 | 126 |
// SPDX-License-Identifier: GPL-2.0 /* Copyright(c) 1999 - 2018 Intel Corporation. */ #include <linux/pci.h> #include <linux/delay.h> #include <linux/sched.h> #include "ixgbe.h" #include "ixgbe_phy.h" #include "ixgbe_mbx.h" #define IXGBE_82599_MAX_TX_QUEUES 128 #define IXGBE_82599_MAX_RX_QUEUES 128 #define IXGBE_82599_RAR_ENTRIES 128 #define IXGBE_82599_MC_TBL_SIZE 128 #define IXGBE_82599_VFT_TBL_SIZE 128 #define IXGBE_82599_RX_PB_SIZE 512 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 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); 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); static s32 ixgbe_setup_copper_link_82599(struct ixgbe_hw *hw, 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); bool ixgbe_mng_enabled(struct ixgbe_hw *hw) { u32 fwsm, manc, factps; fwsm = IXGBE_READ_REG(hw, IXGBE_FWSM(hw)); if ((fwsm & IXGBE_FWSM_MODE_MASK) != IXGBE_FWSM_FW_MODE_PT) return false; manc = IXGBE_READ_REG(hw, IXGBE_MANC); if (!(manc & IXGBE_MANC_RCV_TCO_EN)) return false; factps = IXGBE_READ_REG(hw, IXGBE_FACTPS(hw)); if (factps & IXGBE_FACTPS_MNGCG) return false; return true; } static 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 * and MNG not enabled */ if ((mac->ops.get_media_type(hw) == ixgbe_media_type_fiber) && !ixgbe_mng_enabled(hw)) { 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; 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) && (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; } } static s32 ixgbe_setup_sfp_modules_82599(struct ixgbe_hw *hw) { s32 ret_val; 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) 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) return IXGBE_ERR_SWFW_SYNC; 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); if (hw->eeprom.ops.read(hw, ++data_offset, &data_value)) goto 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); /* Restart DSP and set SFI mode */ 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"); return IXGBE_ERR_SFP_SETUP_NOT_COMPLETE; } } 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 * @autoc: 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; } static s32 ixgbe_get_invariants_82599(struct ixgbe_hw *hw) { struct ixgbe_mac_info *mac = &hw->mac; ixgbe_init_mac_link_ops_82599(hw); 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); return 0; } /** * 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 get_invariants because the PHY/SFP type was * not known. Perform the SFP init if necessary. * **/ static 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; 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); /* Setup function pointers based on detected SFP module and speeds */ ixgbe_init_mac_link_ops_82599(hw); /* 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.check_link = &ixgbe_check_phy_link_tnx; phy->ops.setup_link = &ixgbe_setup_phy_link_tnx; break; default: break; } return ret_val; } /** * ixgbe_get_link_capabilities_82599 - Determines link capabilities * @hw: pointer to hardware structure * @speed: pointer to link speed * @autoneg: true when autoneg or autotry is enabled * * Determines the link capabilities by reading the AUTOC register. **/ static s32 ixgbe_get_link_capabilities_82599(struct ixgbe_hw *hw, ixgbe_link_speed *speed, bool *autoneg) { u32 autoc = 0; /* Determine 1G link capabilities off of SFP+ type */ 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_lx_core0 || hw->phy.sfp_type == ixgbe_sfp_type_1g_lx_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; *autoneg = true; return 0; } /* * 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 value. */ 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; *autoneg = false; break; case IXGBE_AUTOC_LMS_10G_LINK_NO_AN: *speed = IXGBE_LINK_SPEED_10GB_FULL; *autoneg = false; break; case IXGBE_AUTOC_LMS_1G_AN: *speed = IXGBE_LINK_SPEED_1GB_FULL; *autoneg = true; break; case IXGBE_AUTOC_LMS_10G_SERIAL: *speed = IXGBE_LINK_SPEED_10GB_FULL; *autoneg = 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; *autoneg = 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; *autoneg = true; break; case IXGBE_AUTOC_LMS_SGMII_1G_100M: *speed = IXGBE_LINK_SPEED_1GB_FULL | IXGBE_LINK_SPEED_100_FULL; *autoneg = false; break; default: return IXGBE_ERR_LINK_SETUP; } if (hw->phy.multispeed_fiber) { *speed |= IXGBE_LINK_SPEED_10GB_FULL | 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; } return 0; } /** * ixgbe_get_media_type_82599 - Get media type * @hw: pointer to hardware structure * * Returns the media type (fiber, copper, backplane) **/ static enum ixgbe_media_type ixgbe_get_media_type_82599(struct ixgbe_hw *hw) { /* Detect if there is a copper PHY attached. */ switch (hw->phy.type) { case ixgbe_phy_cu_unknown: case ixgbe_phy_tn: return ixgbe_media_type_copper; 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 */ 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: return ixgbe_media_type_fiber; case IXGBE_DEV_ID_82599_CX4: return ixgbe_media_type_cx4; case IXGBE_DEV_ID_82599_T3_LOM: return ixgbe_media_type_copper; case IXGBE_DEV_ID_82599_LS: return ixgbe_media_type_fiber_lco; case IXGBE_DEV_ID_82599_QSFP_SF_QP: return ixgbe_media_type_fiber_qsfp; default: 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); } } /** * 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. **/ static 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; 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) return status; got_lock = true; } /* Restart link */ ixgbe_reset_pipeline_82599(hw); if (got_lock) hw->mac.ops.release_swfw_sync(hw, IXGBE_GSSR_MAC_CSR_SM); /* Only poll for autoneg to complete if specified to do so */ if (autoneg_wait_to_complete) { autoc_reg = IXGBE_READ_REG(hw, IXGBE_AUTOC); 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. **/ static void ixgbe_disable_tx_laser_multispeed_fiber(struct ixgbe_hw *hw) { 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); 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. **/ static 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. **/ 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); hw->mac.autotry_restart = false; } } /** * ixgbe_set_hard_rate_select_speed - Set module link speed * @hw: pointer to hardware structure * @speed: link speed to set * * 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) { u32 esdp_reg = IXGBE_READ_REG(hw, IXGBE_ESDP); switch (speed) { case IXGBE_LINK_SPEED_10GB_FULL: esdp_reg |= (IXGBE_ESDP_SDP5_DIR | IXGBE_ESDP_SDP5); break; case IXGBE_LINK_SPEED_1GB_FULL: esdp_reg &= ~IXGBE_ESDP_SDP5; esdp_reg |= IXGBE_ESDP_SDP5_DIR; break; default: hw_dbg(hw, "Invalid fixed module speed\n"); return; } IXGBE_WRITE_REG(hw, IXGBE_ESDP, esdp_reg); IXGBE_WRITE_FLUSH(hw); } /** * ixgbe_setup_mac_link_smartspeed - Set MAC link speed using SmartSpeed * @hw: pointer to hardware structure * @speed: new link speed * @autoneg_wait_to_complete: true when waiting for completion is needed * * Implements the Intel SmartSpeed algorithm. **/ static s32 ixgbe_setup_mac_link_smartspeed(struct ixgbe_hw *hw, ixgbe_link_speed speed, 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_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++) { mdelay(100); /* If we have link, just jump out */ status = hw->mac.ops.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_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++) { mdelay(100); /* If we have link, just jump out */ status = hw->mac.ops.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_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_wait_to_complete: true when waiting for completion is needed * * Set the link speed in the AUTOC register and restarts link. **/ static s32 ixgbe_setup_mac_link_82599(struct ixgbe_hw *hw, ixgbe_link_speed speed, bool autoneg_wait_to_complete) { bool autoneg = false; s32 status; u32 pma_pmd_1g, link_mode, links_reg, i; u32 autoc2 = IXGBE_READ_REG(hw, IXGBE_AUTOC2); u32 pma_pmd_10g_serial = autoc2 & IXGBE_AUTOC2_10G_SERIAL_PMA_PMD_MASK; ixgbe_link_speed link_capabilities = IXGBE_LINK_SPEED_UNKNOWN; /* 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) return status; speed &= link_capabilities; 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) orig_autoc = hw->mac.orig_autoc; else orig_autoc = autoc; link_mode = autoc & IXGBE_AUTOC_LMS_MASK; pma_pmd_1g = autoc & IXGBE_AUTOC_1G_PMA_PMD_MASK; 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 != current_autoc) { /* Restart link */ 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) { 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); } return status; } /** * ixgbe_setup_copper_link_82599 - Set the PHY autoneg advertised field * @hw: pointer to hardware structure * @speed: new link speed * @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_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); /* 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. **/ static s32 ixgbe_reset_hw_82599(struct ixgbe_hw *hw) { ixgbe_link_speed link_speed; s32 status; 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) return status; /* flush pending Tx transactions */ ixgbe_clear_tx_pending(hw); /* PHY ops must be identified and initialized prior to reset */ /* Identify PHY and related function pointers */ status = hw->phy.ops.init(hw); if (status == IXGBE_ERR_SFP_NOT_SUPPORTED) return status; /* Setup SFP module if there is one present. */ if (hw->phy.sfp_setup_needed) { status = hw->mac.ops.setup_sfp(hw); hw->phy.sfp_setup_needed = false; } if (status == IXGBE_ERR_SFP_NOT_SUPPORTED) 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 */ curr_lms = IXGBE_READ_REG(hw, IXGBE_AUTOC) & IXGBE_AUTOC_LMS_MASK; mac_reset_top: /* * Issue global reset to the MAC. Needs to be SW reset if link is up. * If link reset is used when link is up, it might reset the PHY when * mng is using it. If link is down or the flag to force full link * reset is set, then perform link reset. */ ctrl = IXGBE_CTRL_LNK_RST; if (!hw->force_full_reset) { hw->mac.ops.check_link(hw, &link_speed, &link_up, false); if (link_up) ctrl = IXGBE_CTRL_RST; } ctrl |= IXGBE_READ_REG(hw, IXGBE_CTRL); IXGBE_WRITE_REG(hw, IXGBE_CTRL, ctrl); IXGBE_WRITE_FLUSH(hw); usleep_range(1000, 1200); /* Poll for reset bit to self-clear indicating reset is complete */ for (i = 0; i < 10; i++) { ctrl = IXGBE_READ_REG(hw, IXGBE_CTRL); if (!(ctrl & IXGBE_CTRL_RST_MASK)) break; udelay(1); } if (ctrl & IXGBE_CTRL_RST_MASK) { status = IXGBE_ERR_RESET_FAILED; hw_dbg(hw, "Reset polling failed to complete.\n"); } msleep(50); /* * Double resets are required for recovery from certain error * 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); /* Enable link if disabled in NVM */ if (autoc2 & IXGBE_AUTOC2_LINK_DISABLE_MASK) { autoc2 &= ~IXGBE_AUTOC2_LINK_DISABLE_MASK; IXGBE_WRITE_REG(hw, IXGBE_AUTOC2, autoc2); IXGBE_WRITE_FLUSH(hw); } 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 MNG FW is running on a multi-speed device that * doesn't autoneg with out driver support we need to * leave LMS in the state it was before we MAC reset. * Likewise if we support WoL we don't want change the * LMS state either. */ 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 (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_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 (is_valid_ether_addr(hw->mac.san_addr)) { /* Save the SAN MAC RAR index */ hw->mac.san_mac_rar_index = hw->mac.num_rar_entries - 1; hw->mac.ops.set_rar(hw, hw->mac.san_mac_rar_index, hw->mac.san_addr, 0, IXGBE_RAH_AV); /* clear VMDq pool/queue selection for this RAR */ hw->mac.ops.clear_vmdq(hw, hw->mac.san_mac_rar_index, IXGBE_CLEAR_VMDQ_ALL); /* 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); 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 **/ s32 ixgbe_reinit_fdir_tables_82599(struct ixgbe_hw *hw) { 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. */ 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); 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; usleep_range(1000, 2000); } 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; usleep_range(1000, 2000); } 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 * 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_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 & BIT(n)) \ common_hash ^= lo_hash_dword >> n; \ else if (IXGBE_ATR_BUCKET_HASH_KEY & BIT(n)) \ bucket_hash ^= lo_hash_dword >> n; \ else if (IXGBE_ATR_SIGNATURE_HASH_KEY & BIT(n)) \ sig_hash ^= lo_hash_dword << (16 - n); \ if (IXGBE_ATR_COMMON_HASH_KEY & BIT(n + 16)) \ common_hash ^= hi_hash_dword >> n; \ else if (IXGBE_ATR_BUCKET_HASH_KEY & BIT(n + 16)) \ bucket_hash ^= hi_hash_dword >> n; \ else if (IXGBE_ATR_SIGNATURE_HASH_KEY & BIT(n + 16)) \ sig_hash ^= hi_hash_dword << (16 - n); \ } while (0) /** * ixgbe_atr_compute_sig_hash_82599 - Compute the signature hash * @input: input bitstream to compute the hash on * @common: compressed common input dword * * This function is almost identical to the function above but contains * several optimizations 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. **/ static 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 = ntohl(input.dword); /* generate common hash dword */ hi_hash_dword = 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 * * 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; 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 */ 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: 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 |= (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 * 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 & BIT(n)) \ bucket_hash ^= lo_hash_dword >> n; \ if (IXGBE_ATR_BUCKET_HASH_KEY & BIT(n + 16)) \ bucket_hash ^= hi_hash_dword >> n; \ } while (0) /** * ixgbe_atr_compute_perfect_hash_82599 - Compute the perfect filter hash * @input: input bitstream to compute the hash on * @input_mask: mask for the input bitstream * * This function serves two main purposes. First it applies 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; __be32 hi_dword = 0; int i; /* Apply masks to input data */ 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 */ 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); /* 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 */ for (i = 1; i <= 15; i++) IXGBE_COMPUTE_BKT_HASH_ITERATION(i); /* * Limit hash to 13 bits since max bucket count is 8K. * Store result at the end of the input stream. */ input->formatted.bkt_hash = (__force __be16)(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 = 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); 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(ntohl(value))) #define IXGBE_STORE_AS_BE16(_value) \ 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 (ntohs(input_mask->formatted.vlan_id) & 0xEFFF) { case 0x0000: /* mask VLAN ID */ fdirm |= IXGBE_FDIRM_VLANID; /* fall through */ case 0x0FFF: /* mask VLAN priority */ fdirm |= IXGBE_FDIRM_VLANP; break; case 0xE000: /* mask VLAN ID only */ fdirm |= IXGBE_FDIRM_VLANID; /* fall through */ case 0xEFFF: /* no VLAN fields masked */ break; default: hw_dbg(hw, " Error on VLAN mask\n"); return IXGBE_ERR_CONFIG; } switch ((__force u16)input_mask->formatted.flex_bytes & 0xFFFF) { case 0x0000: /* Mask Flex Bytes */ fdirm |= IXGBE_FDIRM_FLEX; /* fall through */ 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); /* also use it for SCTP */ switch (hw->mac.type) { case ixgbe_mac_X550: case ixgbe_mac_X550EM_x: case ixgbe_mac_x550em_a: 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]); 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; s32 err; /* 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 = ntohs(input->formatted.dst_port); fdirport <<= IXGBE_FDIRPORT_DESTINATION_SHIFT; fdirport |= 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((__force u16)input->formatted.flex_bytes); fdirvlan <<= IXGBE_FDIRVLAN_FLEX_SHIFT; fdirvlan |= ntohs(input->formatted.vlan_id); IXGBE_WRITE_REG(hw, IXGBE_FDIRVLAN, fdirvlan); /* configure FDIRHASH register */ fdirhash = (__force u32)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); err = ixgbe_fdir_check_cmd_complete(hw, &fdircmd); if (err) { hw_dbg(hw, "Flow Director command did not complete!\n"); return err; } 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; s32 err; /* configure FDIRHASH register */ fdirhash = (__force u32)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); err = ixgbe_fdir_check_cmd_complete(hw, &fdircmd); if (err) { hw_dbg(hw, "Flow Director command did not complete!\n"); return err; } /* 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 0; } /** * 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. **/ static 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. **/ static 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. **/ static s32 ixgbe_start_hw_82599(struct ixgbe_hw *hw) { s32 ret_val = 0; ret_val = ixgbe_start_hw_generic(hw); if (ret_val) return ret_val; ret_val = ixgbe_start_hw_gen2(hw); if (ret_val) return ret_val; /* We need to run link autotry after the driver loads */ hw->mac.autotry_restart = true; return ixgbe_verify_fw_version_82599(hw); } /** * 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. **/ static s32 ixgbe_identify_phy_82599(struct ixgbe_hw *hw) { s32 status; /* Detect PHY if not unknown - returns success if already detected. */ status = ixgbe_identify_phy_generic(hw); if (status) { /* 82599 10GBASE-T requires an external PHY */ if (hw->mac.ops.get_media_type(hw) == ixgbe_media_type_copper) return status; 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) return IXGBE_ERR_SFP_NOT_SUPPORTED; return status; } /** * 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 **/ static 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_rx_buff(hw); 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); 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 offset; u16 fw_version = 0; /* firmware check is only necessary for SFI devices */ if (hw->phy.media_type != ixgbe_media_type_fiber) return 0; /* get the offset to the Firmware Module block */ offset = IXGBE_FW_PTR; if (hw->eeprom.ops.read(hw, offset, &fw_offset)) goto fw_version_err; if (fw_offset == 0 || fw_offset == 0xFFFF) return IXGBE_ERR_EEPROM_VERSION; /* get the offset to the Pass Through Patch Configuration block */ 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) return IXGBE_ERR_EEPROM_VERSION; /* get the firmware 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; return status; fw_version_err: hw_err(hw, "eeprom read at offset %d failed\n", offset); return IXGBE_ERR_EEPROM_VERSION; } /** * 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. **/ static bool ixgbe_verify_lesm_fw_enabled_82599(struct ixgbe_hw *hw) { 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 || 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 || 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 && (fw_lesm_state & IXGBE_FW_LESM_STATE_ENABLED)) return true; return false; } /** * 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; /* 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) return ixgbe_read_eerd_buffer_generic(hw, offset, words, data); return ixgbe_read_eeprom_buffer_bit_bang_generic(hw, offset, words, data); } /** * 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; /* * 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) return ixgbe_read_eerd_generic(hw, offset, data); return ixgbe_read_eeprom_bit_bang_generic(hw, offset, data); } /** * ixgbe_reset_pipeline_82599 - perform pipeline reset * * @hw: pointer to hardware structure * * Reset pipeline by asserting Restart_AN together with LMS change to ensure * full pipeline reset. Note - We must hold the SW/FW semaphore before writing * to AUTOC, so this function assumes the semaphore is held. **/ static s32 ixgbe_reset_pipeline_82599(struct ixgbe_hw *hw) { s32 ret_val; u32 anlp1_reg = 0; u32 i, autoc_reg, autoc2_reg; /* Enable link if disabled in NVM */ autoc2_reg = IXGBE_READ_REG(hw, IXGBE_AUTOC2); if (autoc2_reg & IXGBE_AUTOC2_LINK_DISABLE_MASK) { autoc2_reg &= ~IXGBE_AUTOC2_LINK_DISABLE_MASK; IXGBE_WRITE_REG(hw, IXGBE_AUTOC2, autoc2_reg); IXGBE_WRITE_FLUSH(hw); } 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 ^ (0x4 << IXGBE_AUTOC_LMS_SHIFT)); /* Wait for AN to leave state 0 */ for (i = 0; i < 10; i++) { usleep_range(4000, 8000); anlp1_reg = IXGBE_READ_REG(hw, IXGBE_ANLP1); if (anlp1_reg & IXGBE_ANLP1_AN_STATE_MASK) break; } if (!(anlp1_reg & IXGBE_ANLP1_AN_STATE_MASK)) { hw_dbg(hw, "auto negotiation not completed\n"); ret_val = IXGBE_ERR_RESET_FAILED; goto reset_pipeline_out; } ret_val = 0; reset_pipeline_out: /* Write AUTOC register with original LMS field and Restart_AN */ IXGBE_WRITE_REG(hw, IXGBE_AUTOC, autoc_reg); IXGBE_WRITE_FLUSH(hw); 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 * @dev_addr: address to read from * @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 * @dev_addr: address to write to * @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 const 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, .enable_rx_dma = &ixgbe_enable_rx_dma_82599, .disable_rx_buff = &ixgbe_disable_rx_buff_generic, .enable_rx_buff = &ixgbe_enable_rx_buff_generic, .get_mac_addr = &ixgbe_get_mac_addr_generic, .get_san_mac_addr = &ixgbe_get_san_mac_addr_generic, .get_device_caps = &ixgbe_get_device_caps_generic, .get_wwn_prefix = &ixgbe_get_wwn_prefix_generic, .stop_adapter = &ixgbe_stop_adapter_generic, .get_bus_info = &ixgbe_get_bus_info_generic, .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, .get_link_capabilities = &ixgbe_get_link_capabilities_82599, .led_on = &ixgbe_led_on_generic, .led_off = &ixgbe_led_off_generic, .init_led_link_act = ixgbe_init_led_link_act_generic, .blink_led_start = &ixgbe_blink_led_start_generic, .blink_led_stop = &ixgbe_blink_led_stop_generic, .set_rar = &ixgbe_set_rar_generic, .clear_rar = &ixgbe_clear_rar_generic, .set_vmdq = &ixgbe_set_vmdq_generic, .set_vmdq_san_mac = &ixgbe_set_vmdq_san_mac_generic, .clear_vmdq = &ixgbe_clear_vmdq_generic, .init_rx_addrs = &ixgbe_init_rx_addrs_generic, .update_mc_addr_list = &ixgbe_update_mc_addr_list_generic, .enable_mc = &ixgbe_enable_mc_generic, .disable_mc = &ixgbe_disable_mc_generic, .clear_vfta = &ixgbe_clear_vfta_generic, .set_vfta = &ixgbe_set_vfta_generic, .fc_enable = &ixgbe_fc_enable_generic, .setup_fc = ixgbe_setup_fc_generic, .fc_autoneg = ixgbe_fc_autoneg, .set_fw_drv_ver = &ixgbe_set_fw_drv_ver_generic, .init_uta_tables = &ixgbe_init_uta_tables_generic, .setup_sfp = &ixgbe_setup_sfp_modules_82599, .set_mac_anti_spoofing = &ixgbe_set_mac_anti_spoofing, .set_vlan_anti_spoofing = &ixgbe_set_vlan_anti_spoofing, .acquire_swfw_sync = &ixgbe_acquire_swfw_sync, .release_swfw_sync = &ixgbe_release_swfw_sync, .init_swfw_sync = NULL, .get_thermal_sensor_data = &ixgbe_get_thermal_sensor_data_generic, .init_thermal_sensor_thresh = &ixgbe_init_thermal_sensor_thresh_generic, .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 const struct ixgbe_eeprom_operations eeprom_ops_82599 = { .init_params = &ixgbe_init_eeprom_params_generic, .read = &ixgbe_read_eeprom_82599, .read_buffer = &ixgbe_read_eeprom_buffer_82599, .write = &ixgbe_write_eeprom_generic, .write_buffer = &ixgbe_write_eeprom_buffer_bit_bang_generic, .calc_checksum = &ixgbe_calc_eeprom_checksum_generic, .validate_checksum = &ixgbe_validate_eeprom_checksum_generic, .update_checksum = &ixgbe_update_eeprom_checksum_generic, }; static const struct ixgbe_phy_operations phy_ops_82599 = { .identify = &ixgbe_identify_phy_82599, .identify_sfp = &ixgbe_identify_module_generic, .init = &ixgbe_init_phy_ops_82599, .reset = &ixgbe_reset_phy_generic, .read_reg = &ixgbe_read_phy_reg_generic, .write_reg = &ixgbe_write_phy_reg_generic, .setup_link = &ixgbe_setup_phy_link_generic, .setup_link_speed = &ixgbe_setup_phy_link_speed_generic, .read_i2c_byte = &ixgbe_read_i2c_byte_generic, .write_i2c_byte = &ixgbe_write_i2c_byte_generic, .read_i2c_sff8472 = &ixgbe_read_i2c_sff8472_generic, .read_i2c_eeprom = &ixgbe_read_i2c_eeprom_generic, .write_i2c_eeprom = &ixgbe_write_i2c_eeprom_generic, .check_overtemp = &ixgbe_tn_check_overtemp, }; const struct ixgbe_info ixgbe_82599_info = { .mac = ixgbe_mac_82599EB, .get_invariants = &ixgbe_get_invariants_82599, .mac_ops = &mac_ops_82599, .eeprom_ops = &eeprom_ops_82599, .phy_ops = &phy_ops_82599, .mbx_ops = &mbx_ops_generic, .mvals = ixgbe_mvals_8259X, };
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