diff options
Diffstat (limited to 'drivers/net/ethernet/intel/ixgbe/ixgbe_x550.c')
| -rw-r--r-- | drivers/net/ethernet/intel/ixgbe/ixgbe_x550.c | 150 |
1 files changed, 135 insertions, 15 deletions
diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_x550.c b/drivers/net/ethernet/intel/ixgbe/ixgbe_x550.c index 1d2acdb64f45..bfa647086c70 100644 --- a/drivers/net/ethernet/intel/ixgbe/ixgbe_x550.c +++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_x550.c @@ -20,7 +20,7 @@ static int ixgbe_get_invariants_X550_x(struct ixgbe_hw *hw) struct ixgbe_phy_info *phy = &hw->phy; struct ixgbe_link_info *link = &hw->link; - /* Start with X540 invariants, since so simular */ + /* Start with X540 invariants, since so similar */ ixgbe_get_invariants_X540(hw); if (mac->ops.get_media_type(hw) != ixgbe_media_type_copper) @@ -48,7 +48,7 @@ static int ixgbe_get_invariants_X550_a(struct ixgbe_hw *hw) struct ixgbe_mac_info *mac = &hw->mac; struct ixgbe_phy_info *phy = &hw->phy; - /* Start with X540 invariants, since so simular */ + /* Start with X540 invariants, since so similar */ ixgbe_get_invariants_X540(hw); if (mac->ops.get_media_type(hw) != ixgbe_media_type_copper) @@ -685,7 +685,7 @@ static int ixgbe_iosf_wait(struct ixgbe_hw *hw, u32 *ctrl) return 0; } -/** ixgbe_read_iosf_sb_reg_x550 - Writes a value to specified register of the +/** ixgbe_read_iosf_sb_reg_x550 - Reads a value to specified register of the * IOSF device * @hw: pointer to hardware structure * @reg_addr: 32 bit PHY register to write @@ -847,7 +847,7 @@ static int ixgbe_read_iosf_sb_reg_x550a(struct ixgbe_hw *hw, u32 reg_addr, /** ixgbe_read_ee_hostif_buffer_X550- Read EEPROM word(s) using hostif * @hw: pointer to hardware structure - * @offset: offset of word in the EEPROM to read + * @offset: offset of word in the EEPROM to read * @words: number of words * @data: word(s) read from the EEPROM * @@ -1253,7 +1253,7 @@ static int ixgbe_get_bus_info_X550em(struct ixgbe_hw *hw) /** * ixgbe_fw_recovery_mode_X550 - Check FW NVM recovery mode - * @hw: pointer t hardware structure + * @hw: pointer to hardware structure * * Returns true if in FW NVM recovery mode. */ @@ -1267,7 +1267,7 @@ static bool ixgbe_fw_recovery_mode_X550(struct ixgbe_hw *hw) /** ixgbe_disable_rx_x550 - Disable RX unit * - * Enables the Rx DMA unit for x550 + * Disables the Rx DMA unit for x550 **/ static void ixgbe_disable_rx_x550(struct ixgbe_hw *hw) { @@ -1754,7 +1754,7 @@ ixgbe_setup_mac_link_sfp_n(struct ixgbe_hw *hw, ixgbe_link_speed speed, ret_val = ixgbe_supported_sfp_modules_X550em(hw, &setup_linear); /* If no SFP module present, then return success. Return success since - * SFP not present error is not excepted in the setup MAC link flow. + * SFP not present error is not accepted in the setup MAC link flow. */ if (ret_val == -ENOENT) return 0; @@ -1804,7 +1804,7 @@ ixgbe_setup_mac_link_sfp_x550a(struct ixgbe_hw *hw, ixgbe_link_speed speed, ret_val = ixgbe_supported_sfp_modules_X550em(hw, &setup_linear); /* If no SFP module present, then return success. Return success since - * SFP not present error is not excepted in the setup MAC link flow. + * SFP not present error is not accepted in the setup MAC link flow. */ if (ret_val == -ENOENT) return 0; @@ -2324,7 +2324,7 @@ static int ixgbe_get_link_capabilities_X550em(struct ixgbe_hw *hw, * PHY interrupt is lsc * @is_overtemp: indicate whether an overtemp event encountered * - * Determime if external Base T PHY interrupt cause is high temperature + * Determine if external Base T PHY interrupt cause is high temperature * failure alarm or link status change. **/ static int ixgbe_get_lasi_ext_t_x550em(struct ixgbe_hw *hw, bool *lsc, @@ -2669,7 +2669,7 @@ static int ixgbe_setup_internal_phy_t_x550em(struct ixgbe_hw *hw) if (status) return status; - /* If link is not still up, then no setup is necessary so return */ + /* If the link is still not up, no setup is necessary */ status = ixgbe_ext_phy_t_x550em_get_link(hw, &link_up); if (status) return status; @@ -2768,7 +2768,7 @@ static int ixgbe_led_off_t_x550em(struct ixgbe_hw *hw, u32 led_idx) * Sends driver version number to firmware through the manageability * block. On success return 0 * else returns -EBUSY when encountering an error acquiring - * semaphore, -EIO when command fails or -ENIVAL when incorrect + * semaphore, -EIO when command fails or -EINVAL when incorrect * params passed. **/ int ixgbe_set_fw_drv_ver_x550(struct ixgbe_hw *hw, u8 maj, u8 min, @@ -3175,7 +3175,7 @@ static void ixgbe_read_mng_if_sel_x550em(struct ixgbe_hw *hw) hw->phy.nw_mng_if_sel = IXGBE_READ_REG(hw, IXGBE_NW_MNG_IF_SEL); /* If X552 (X550EM_a) and MDIO is connected to external PHY, then set - * PHY address. This register field was has only been used for X552. + * PHY address. This register field has only been used for X552. */ if (hw->mac.type == ixgbe_mac_x550em_a && hw->phy.nw_mng_if_sel & IXGBE_NW_MNG_IF_SEL_MDIO_ACT) { @@ -3316,7 +3316,7 @@ static enum ixgbe_media_type ixgbe_get_media_type_X550em(struct ixgbe_hw *hw) return media_type; } -/** ixgbe_init_ext_t_x550em - Start (unstall) the external Base T PHY. +/** ixgbe_init_ext_t_x550em - Start (uninstall) the external Base T PHY. ** @hw: pointer to hardware structure **/ static int ixgbe_init_ext_t_x550em(struct ixgbe_hw *hw) @@ -3735,7 +3735,7 @@ static int ixgbe_acquire_swfw_sync_x550em_a(struct ixgbe_hw *hw, u32 mask) * @hw: pointer to hardware structure * @mask: Mask to specify which semaphore to release * - * Release the SWFW semaphore and puts the shared PHY token as needed + * Release the SWFW semaphore and puts back the shared PHY token as needed */ static void ixgbe_release_swfw_sync_x550em_a(struct ixgbe_hw *hw, u32 mask) { @@ -3756,7 +3756,7 @@ static void ixgbe_release_swfw_sync_x550em_a(struct ixgbe_hw *hw, u32 mask) * @phy_data: Pointer to read data from PHY register * * Reads a value from a specified PHY register using the SWFW lock and PHY - * Token. The PHY Token is needed since the MDIO is shared between to MAC + * Token. The PHY Token is needed since the MDIO is shared between two MAC * instances. */ static int ixgbe_read_phy_reg_x550a(struct ixgbe_hw *hw, u32 reg_addr, @@ -3800,6 +3800,122 @@ static int ixgbe_write_phy_reg_x550a(struct ixgbe_hw *hw, u32 reg_addr, return status; } +static void ixgbe_set_mdd_x550(struct ixgbe_hw *hw, bool ena) +{ + u32 reg_dma, reg_rdr; + + reg_dma = IXGBE_READ_REG(hw, IXGBE_DMATXCTL); + reg_rdr = IXGBE_READ_REG(hw, IXGBE_RDRXCTL); + + if (ena) { + reg_dma |= (IXGBE_DMATXCTL_MDP_EN | IXGBE_DMATXCTL_MBINTEN); + reg_rdr |= (IXGBE_RDRXCTL_MDP_EN | IXGBE_RDRXCTL_MBINTEN); + } else { + reg_dma &= ~(IXGBE_DMATXCTL_MDP_EN | IXGBE_DMATXCTL_MBINTEN); + reg_rdr &= ~(IXGBE_RDRXCTL_MDP_EN | IXGBE_RDRXCTL_MBINTEN); + } + + IXGBE_WRITE_REG(hw, IXGBE_DMATXCTL, reg_dma); + IXGBE_WRITE_REG(hw, IXGBE_RDRXCTL, reg_rdr); +} + +/** + * ixgbe_enable_mdd_x550 - enable malicious driver detection + * @hw: pointer to hardware structure + */ +void ixgbe_enable_mdd_x550(struct ixgbe_hw *hw) +{ + ixgbe_set_mdd_x550(hw, true); +} + +/** + * ixgbe_disable_mdd_x550 - disable malicious driver detection + * @hw: pointer to hardware structure + */ +void ixgbe_disable_mdd_x550(struct ixgbe_hw *hw) +{ + ixgbe_set_mdd_x550(hw, false); +} + +/** + * ixgbe_restore_mdd_vf_x550 - restore VF that was disabled during MDD event + * @hw: pointer to hardware structure + * @vf: vf index + */ +void ixgbe_restore_mdd_vf_x550(struct ixgbe_hw *hw, u32 vf) +{ + u32 idx, reg, val, num_qs, start_q, bitmask; + + /* Map VF to queues */ + reg = IXGBE_READ_REG(hw, IXGBE_MRQC); + switch (reg & IXGBE_MRQC_MRQE_MASK) { + case IXGBE_MRQC_VMDQRT8TCEN: + num_qs = IXGBE_16VFS_QUEUES; + bitmask = IXGBE_16VFS_BITMASK; + break; + case IXGBE_MRQC_VMDQRSS32EN: + case IXGBE_MRQC_VMDQRT4TCEN: + num_qs = IXGBE_32VFS_QUEUES; + bitmask = IXGBE_32VFS_BITMASK; + break; + default: + num_qs = IXGBE_64VFS_QUEUES; + bitmask = IXGBE_64VFS_BITMASK; + break; + } + start_q = vf * num_qs; + + /* Release vf's queues by clearing WQBR_TX and WQBR_RX (RW1C) */ + idx = start_q / IXGBE_QUEUES_PER_REG; + val = bitmask << (start_q % IXGBE_QUEUES_PER_REG); + IXGBE_WRITE_REG(hw, IXGBE_WQBR_TX(idx), val); + IXGBE_WRITE_REG(hw, IXGBE_WQBR_RX(idx), val); +} + +/** + * ixgbe_handle_mdd_x550 - handle malicious driver detection event + * @hw: pointer to hardware structure + * @vf_bitmap: output vf bitmap of malicious vfs + */ +void ixgbe_handle_mdd_x550(struct ixgbe_hw *hw, unsigned long *vf_bitmap) +{ + u32 i, j, reg, q, div, vf; + unsigned long wqbr; + + /* figure out pool size for mapping to vf's */ + reg = IXGBE_READ_REG(hw, IXGBE_MRQC); + switch (reg & IXGBE_MRQC_MRQE_MASK) { + case IXGBE_MRQC_VMDQRT8TCEN: + div = IXGBE_16VFS_QUEUES; + break; + case IXGBE_MRQC_VMDQRSS32EN: + case IXGBE_MRQC_VMDQRT4TCEN: + div = IXGBE_32VFS_QUEUES; + break; + default: + div = IXGBE_64VFS_QUEUES; + break; + } + + /* Read WQBR_TX and WQBR_RX and check for malicious queues */ + for (i = 0; i < IXGBE_QUEUES_REG_AMOUNT; i++) { + wqbr = IXGBE_READ_REG(hw, IXGBE_WQBR_TX(i)) | + IXGBE_READ_REG(hw, IXGBE_WQBR_RX(i)); + if (!wqbr) + continue; + + /* Get malicious queue */ + for_each_set_bit(j, (unsigned long *)&wqbr, + IXGBE_QUEUES_PER_REG) { + /* Get queue from bitmask */ + q = j + (i * IXGBE_QUEUES_PER_REG); + /* Map queue to vf */ + vf = q / div; + set_bit(vf, vf_bitmap); + } + } +} + #define X550_COMMON_MAC \ .init_hw = &ixgbe_init_hw_generic, \ .start_hw = &ixgbe_start_hw_X540, \ @@ -3863,6 +3979,10 @@ static const struct ixgbe_mac_operations mac_ops_X550 = { .prot_autoc_write = prot_autoc_write_generic, .setup_fc = ixgbe_setup_fc_generic, .fc_autoneg = ixgbe_fc_autoneg, + .enable_mdd = ixgbe_enable_mdd_x550, + .disable_mdd = ixgbe_disable_mdd_x550, + .restore_mdd_vf = ixgbe_restore_mdd_vf_x550, + .handle_mdd = ixgbe_handle_mdd_x550, }; static const struct ixgbe_mac_operations mac_ops_X550EM_x = { |