diff options
Diffstat (limited to 'drivers/net/ethernet/intel/ixgbe/devlink/devlink.c')
| -rw-r--r-- | drivers/net/ethernet/intel/ixgbe/devlink/devlink.c | 112 |
1 files changed, 112 insertions, 0 deletions
diff --git a/drivers/net/ethernet/intel/ixgbe/devlink/devlink.c b/drivers/net/ethernet/intel/ixgbe/devlink/devlink.c index 26cbeb077fa6..d0197991763c 100644 --- a/drivers/net/ethernet/intel/ixgbe/devlink/devlink.c +++ b/drivers/net/ethernet/intel/ixgbe/devlink/devlink.c @@ -322,6 +322,9 @@ static int ixgbe_devlink_info_get(struct devlink *devlink, if (!ctx) return -ENOMEM; + if (hw->mac.type == ixgbe_mac_e610) + ixgbe_refresh_fw_version(adapter); + ixgbe_info_get_dsn(adapter, ctx); err = devlink_info_serial_number_put(req, ctx->buf); if (err) @@ -365,11 +368,120 @@ free_ctx: return err; } +/** + * ixgbe_devlink_reload_empr_start - Start EMP reset to activate new firmware + * @devlink: pointer to the devlink instance to reload + * @netns_change: if true, the network namespace is changing + * @action: the action to perform. Must be DEVLINK_RELOAD_ACTION_FW_ACTIVATE + * @limit: limits on what reload should do, such as not resetting + * @extack: netlink extended ACK structure + * + * Allow user to activate new Embedded Management Processor firmware by + * issuing device specific EMP reset. Called in response to + * a DEVLINK_CMD_RELOAD with the DEVLINK_RELOAD_ACTION_FW_ACTIVATE. + * + * Note that teardown and rebuild of the driver state happens automatically as + * part of an interrupt and watchdog task. This is because all physical + * functions on the device must be able to reset when an EMP reset occurs from + * any source. + * + * Return: the exit code of the operation. + */ +static int ixgbe_devlink_reload_empr_start(struct devlink *devlink, + bool netns_change, + enum devlink_reload_action action, + enum devlink_reload_limit limit, + struct netlink_ext_ack *extack) +{ + struct ixgbe_adapter *adapter = devlink_priv(devlink); + struct ixgbe_hw *hw = &adapter->hw; + u8 pending; + int err; + + if (hw->mac.type != ixgbe_mac_e610) + return -EOPNOTSUPP; + + err = ixgbe_get_pending_updates(adapter, &pending, extack); + if (err) + return err; + + /* Pending is a bitmask of which flash banks have a pending update, + * including the main NVM bank, the Option ROM bank, and the netlist + * bank. If any of these bits are set, then there is a pending update + * waiting to be activated. + */ + if (!pending) { + NL_SET_ERR_MSG_MOD(extack, "No pending firmware update"); + return -ECANCELED; + } + + if (adapter->fw_emp_reset_disabled) { + NL_SET_ERR_MSG_MOD(extack, + "EMP reset is not available. To activate firmware, a reboot or power cycle is needed"); + return -ECANCELED; + } + + err = ixgbe_aci_nvm_update_empr(hw); + if (err) + NL_SET_ERR_MSG_MOD(extack, + "Failed to trigger EMP device reset to reload firmware"); + + return err; +} + +/*Wait for 10 sec with 0.5 sec tic. EMPR takes no less than half of a sec */ +#define IXGBE_DEVLINK_RELOAD_TIMEOUT_SEC 20 + +/** + * ixgbe_devlink_reload_empr_finish - finishes EMP reset + * @devlink: pointer to the devlink instance + * @action: the action to perform. + * @limit: limits on what reload should do + * @actions_performed: actions performed + * @extack: netlink extended ACK structure + * + * Wait for new NVM to be loaded during EMP reset. + * + * Return: -ETIME when timer is exceeded, 0 on success. + */ +static int ixgbe_devlink_reload_empr_finish(struct devlink *devlink, + enum devlink_reload_action action, + enum devlink_reload_limit limit, + u32 *actions_performed, + struct netlink_ext_ack *extack) +{ + struct ixgbe_adapter *adapter = devlink_priv(devlink); + struct ixgbe_hw *hw = &adapter->hw; + int i = 0; + u32 fwsm; + + do { + /* Just right away after triggering EMP reset the FWSM register + * may be not cleared yet, so begin the loop with the delay + * in order to not check the not updated register. + */ + mdelay(500); + + fwsm = IXGBE_READ_REG(hw, IXGBE_FWSM(hw)); + + if (i++ >= IXGBE_DEVLINK_RELOAD_TIMEOUT_SEC) + return -ETIME; + + } while (!(fwsm & IXGBE_FWSM_FW_VAL_BIT)); + + *actions_performed = BIT(DEVLINK_RELOAD_ACTION_FW_ACTIVATE); + + return 0; +} + static const struct devlink_ops ixgbe_devlink_ops = { .info_get = ixgbe_devlink_info_get, .supported_flash_update_params = DEVLINK_SUPPORT_FLASH_UPDATE_OVERWRITE_MASK, .flash_update = ixgbe_flash_pldm_image, + .reload_actions = BIT(DEVLINK_RELOAD_ACTION_FW_ACTIVATE), + .reload_down = ixgbe_devlink_reload_empr_start, + .reload_up = ixgbe_devlink_reload_empr_finish, }; /** |