diff options
| -rw-r--r-- | drivers/net/ethernet/intel/i40e/i40e.h | 22 | ||||
| -rw-r--r-- | drivers/net/ethernet/intel/i40e/i40e_adminq_cmd.h | 1 | ||||
| -rw-r--r-- | drivers/net/ethernet/intel/i40e/i40e_ethtool.c | 9 | ||||
| -rw-r--r-- | drivers/net/ethernet/intel/i40e/i40e_main.c | 122 |
4 files changed, 133 insertions, 21 deletions
diff --git a/drivers/net/ethernet/intel/i40e/i40e.h b/drivers/net/ethernet/intel/i40e/i40e.h index 7618834b149b..a7e212d1caa2 100644 --- a/drivers/net/ethernet/intel/i40e/i40e.h +++ b/drivers/net/ethernet/intel/i40e/i40e.h @@ -543,6 +543,28 @@ struct i40e_pf { #define I40E_FLAG_DISABLE_FW_LLDP BIT(24) #define I40E_FLAG_RS_FEC BIT(25) #define I40E_FLAG_BASE_R_FEC BIT(26) +/* TOTAL_PORT_SHUTDOWN + * Allows to physically disable the link on the NIC's port. + * If enabled, (after link down request from the OS) + * no link, traffic or led activity is possible on that port. + * + * If I40E_FLAG_TOTAL_PORT_SHUTDOWN_ENABLED is set, the + * I40E_FLAG_LINK_DOWN_ON_CLOSE_ENABLED must be explicitly forced to true + * and cannot be disabled by system admin at that time. + * The functionalities are exclusive in terms of configuration, but they also + * have similar behavior (allowing to disable physical link of the port), + * with following differences: + * - LINK_DOWN_ON_CLOSE_ENABLED is configurable at host OS run-time and is + * supported by whole family of 7xx Intel Ethernet Controllers + * - TOTAL_PORT_SHUTDOWN may be enabled only before OS loads (in BIOS) + * only if motherboard's BIOS and NIC's FW has support of it + * - when LINK_DOWN_ON_CLOSE_ENABLED is used, the link is being brought down + * by sending phy_type=0 to NIC's FW + * - when TOTAL_PORT_SHUTDOWN is used, phy_type is not altered, instead + * the link is being brought down by clearing bit (I40E_AQ_PHY_ENABLE_LINK) + * in abilities field of i40e_aq_set_phy_config structure + */ +#define I40E_FLAG_TOTAL_PORT_SHUTDOWN_ENABLED BIT(27) struct i40e_client_instance *cinst; bool stat_offsets_loaded; diff --git a/drivers/net/ethernet/intel/i40e/i40e_adminq_cmd.h b/drivers/net/ethernet/intel/i40e/i40e_adminq_cmd.h index c52910f03cfb..a62ddd626929 100644 --- a/drivers/net/ethernet/intel/i40e/i40e_adminq_cmd.h +++ b/drivers/net/ethernet/intel/i40e/i40e_adminq_cmd.h @@ -1676,6 +1676,7 @@ struct i40e_aq_set_phy_config { /* same bits as above in all */ u8 link_speed; u8 abilities; /* bits 0-2 use the values from get_phy_abilities_resp */ +#define I40E_AQ_PHY_ENABLE_LINK 0x08 #define I40E_AQ_PHY_ENABLE_AN 0x10 #define I40E_AQ_PHY_ENABLE_ATOMIC_LINK 0x20 __le16 eee_capability; diff --git a/drivers/net/ethernet/intel/i40e/i40e_ethtool.c b/drivers/net/ethernet/intel/i40e/i40e_ethtool.c index d09c12795c65..825c104ecba1 100644 --- a/drivers/net/ethernet/intel/i40e/i40e_ethtool.c +++ b/drivers/net/ethernet/intel/i40e/i40e_ethtool.c @@ -428,6 +428,8 @@ struct i40e_priv_flags { static const struct i40e_priv_flags i40e_gstrings_priv_flags[] = { /* NOTE: MFP setting cannot be changed */ I40E_PRIV_FLAG("MFP", I40E_FLAG_MFP_ENABLED, 1), + I40E_PRIV_FLAG("total-port-shutdown", + I40E_FLAG_TOTAL_PORT_SHUTDOWN_ENABLED, 1), I40E_PRIV_FLAG("LinkPolling", I40E_FLAG_LINK_POLLING_ENABLED, 0), I40E_PRIV_FLAG("flow-director-atr", I40E_FLAG_FD_ATR_ENABLED, 0), I40E_PRIV_FLAG("veb-stats", I40E_FLAG_VEB_STATS_ENABLED, 0), @@ -5007,6 +5009,13 @@ flags_complete: dev_warn(&pf->pdev->dev, "Cannot change FEC config\n"); } + if ((changed_flags & I40E_FLAG_LINK_DOWN_ON_CLOSE_ENABLED) && + (orig_flags & I40E_FLAG_TOTAL_PORT_SHUTDOWN_ENABLED)) { + dev_err(&pf->pdev->dev, + "Setting link-down-on-close not supported on this port (because total-port-shutdown is enabled)\n"); + return -EOPNOTSUPP; + } + if ((changed_flags & new_flags & I40E_FLAG_LINK_DOWN_ON_CLOSE_ENABLED) && (new_flags & I40E_FLAG_MFP_ENABLED)) diff --git a/drivers/net/ethernet/intel/i40e/i40e_main.c b/drivers/net/ethernet/intel/i40e/i40e_main.c index 37e3bc072b0e..c559b9c4514c 100644 --- a/drivers/net/ethernet/intel/i40e/i40e_main.c +++ b/drivers/net/ethernet/intel/i40e/i40e_main.c @@ -46,7 +46,7 @@ static void i40e_fdir_sb_setup(struct i40e_pf *pf); static int i40e_veb_get_bw_info(struct i40e_veb *veb); static int i40e_get_capabilities(struct i40e_pf *pf, enum i40e_admin_queue_opc list_type); - +static bool i40e_is_total_port_shutdown_enabled(struct i40e_pf *pf); /* i40e_pci_tbl - PCI Device ID Table * @@ -6680,21 +6680,6 @@ static void i40e_vsi_reinit_locked(struct i40e_vsi *vsi) } /** - * i40e_up - Bring the connection back up after being down - * @vsi: the VSI being configured - **/ -int i40e_up(struct i40e_vsi *vsi) -{ - int err; - - err = i40e_vsi_configure(vsi); - if (!err) - err = i40e_up_complete(vsi); - - return err; -} - -/** * i40e_force_link_state - Force the link status * @pf: board private structure * @is_up: whether the link state should be forced up or down @@ -6703,6 +6688,7 @@ static i40e_status i40e_force_link_state(struct i40e_pf *pf, bool is_up) { struct i40e_aq_get_phy_abilities_resp abilities; struct i40e_aq_set_phy_config config = {0}; + bool non_zero_phy_type = is_up; struct i40e_hw *hw = &pf->hw; i40e_status err; u64 mask; @@ -6738,8 +6724,11 @@ static i40e_status i40e_force_link_state(struct i40e_pf *pf, bool is_up) /* If link needs to go up, but was not forced to go down, * and its speed values are OK, no need for a flap + * if non_zero_phy_type was set, still need to force up */ - if (is_up && abilities.phy_type != 0 && abilities.link_speed != 0) + if (pf->flags & I40E_FLAG_TOTAL_PORT_SHUTDOWN_ENABLED) + non_zero_phy_type = true; + else if (is_up && abilities.phy_type != 0 && abilities.link_speed != 0) return I40E_SUCCESS; /* To force link we need to set bits for all supported PHY types, @@ -6747,10 +6736,18 @@ static i40e_status i40e_force_link_state(struct i40e_pf *pf, bool is_up) * across two fields. */ mask = I40E_PHY_TYPES_BITMASK; - config.phy_type = is_up ? cpu_to_le32((u32)(mask & 0xffffffff)) : 0; - config.phy_type_ext = is_up ? (u8)((mask >> 32) & 0xff) : 0; + config.phy_type = + non_zero_phy_type ? cpu_to_le32((u32)(mask & 0xffffffff)) : 0; + config.phy_type_ext = + non_zero_phy_type ? (u8)((mask >> 32) & 0xff) : 0; /* Copy the old settings, except of phy_type */ config.abilities = abilities.abilities; + if (pf->flags & I40E_FLAG_TOTAL_PORT_SHUTDOWN_ENABLED) { + if (is_up) + config.abilities |= I40E_AQ_PHY_ENABLE_LINK; + else + config.abilities &= ~(I40E_AQ_PHY_ENABLE_LINK); + } if (abilities.link_speed != 0) config.link_speed = abilities.link_speed; else @@ -6781,12 +6778,32 @@ static i40e_status i40e_force_link_state(struct i40e_pf *pf, bool is_up) i40e_update_link_info(hw); } - i40e_aq_set_link_restart_an(hw, true, NULL); + i40e_aq_set_link_restart_an(hw, is_up, NULL); return I40E_SUCCESS; } /** + * i40e_up - Bring the connection back up after being down + * @vsi: the VSI being configured + **/ +int i40e_up(struct i40e_vsi *vsi) +{ + int err; + + if (vsi->type == I40E_VSI_MAIN && + (vsi->back->flags & I40E_FLAG_LINK_DOWN_ON_CLOSE_ENABLED || + vsi->back->flags & I40E_FLAG_TOTAL_PORT_SHUTDOWN_ENABLED)) + i40e_force_link_state(vsi->back, true); + + err = i40e_vsi_configure(vsi); + if (!err) + err = i40e_up_complete(vsi); + + return err; +} + +/** * i40e_down - Shutdown the connection processing * @vsi: the VSI being stopped **/ @@ -6804,7 +6821,8 @@ void i40e_down(struct i40e_vsi *vsi) i40e_vsi_disable_irq(vsi); i40e_vsi_stop_rings(vsi); if (vsi->type == I40E_VSI_MAIN && - vsi->back->flags & I40E_FLAG_LINK_DOWN_ON_CLOSE_ENABLED) + (vsi->back->flags & I40E_FLAG_LINK_DOWN_ON_CLOSE_ENABLED || + vsi->back->flags & I40E_FLAG_TOTAL_PORT_SHUTDOWN_ENABLED)) i40e_force_link_state(vsi->back, false); i40e_napi_disable_all(vsi); @@ -11838,6 +11856,58 @@ bw_commit_out: } /** + * i40e_is_total_port_shutdown_enabled - read NVM and return value + * if total port shutdown feature is enabled for this PF + * @pf: board private structure + **/ +static bool i40e_is_total_port_shutdown_enabled(struct i40e_pf *pf) +{ +#define I40E_TOTAL_PORT_SHUTDOWN_ENABLED BIT(4) +#define I40E_FEATURES_ENABLE_PTR 0x2A +#define I40E_CURRENT_SETTING_PTR 0x2B +#define I40E_LINK_BEHAVIOR_WORD_OFFSET 0x2D +#define I40E_LINK_BEHAVIOR_WORD_LENGTH 0x1 +#define I40E_LINK_BEHAVIOR_OS_FORCED_ENABLED BIT(0) +#define I40E_LINK_BEHAVIOR_PORT_BIT_LENGTH 4 + i40e_status read_status = I40E_SUCCESS; + u16 sr_emp_sr_settings_ptr = 0; + u16 features_enable = 0; + u16 link_behavior = 0; + bool ret = false; + + read_status = i40e_read_nvm_word(&pf->hw, + I40E_SR_EMP_SR_SETTINGS_PTR, + &sr_emp_sr_settings_ptr); + if (read_status) + goto err_nvm; + read_status = i40e_read_nvm_word(&pf->hw, + sr_emp_sr_settings_ptr + + I40E_FEATURES_ENABLE_PTR, + &features_enable); + if (read_status) + goto err_nvm; + if (I40E_TOTAL_PORT_SHUTDOWN_ENABLED & features_enable) { + read_status = i40e_read_nvm_module_data(&pf->hw, + I40E_SR_EMP_SR_SETTINGS_PTR, + I40E_CURRENT_SETTING_PTR, + I40E_LINK_BEHAVIOR_WORD_OFFSET, + I40E_LINK_BEHAVIOR_WORD_LENGTH, + &link_behavior); + if (read_status) + goto err_nvm; + link_behavior >>= (pf->hw.port * I40E_LINK_BEHAVIOR_PORT_BIT_LENGTH); + ret = I40E_LINK_BEHAVIOR_OS_FORCED_ENABLED & link_behavior; + } + return ret; + +err_nvm: + dev_warn(&pf->pdev->dev, + "total-port-shutdown feature is off due to read nvm error: %s\n", + i40e_stat_str(&pf->hw, read_status)); + return ret; +} + +/** * i40e_sw_init - Initialize general software structures (struct i40e_pf) * @pf: board private structure to initialize * @@ -12012,6 +12082,16 @@ static int i40e_sw_init(struct i40e_pf *pf) pf->tx_timeout_recovery_level = 1; + if (pf->hw.mac.type != I40E_MAC_X722 && + i40e_is_total_port_shutdown_enabled(pf)) { + /* Link down on close must be on when total port shutdown + * is enabled for a given port + */ + pf->flags |= (I40E_FLAG_TOTAL_PORT_SHUTDOWN_ENABLED | + I40E_FLAG_LINK_DOWN_ON_CLOSE_ENABLED); + dev_info(&pf->pdev->dev, + "total-port-shutdown was enabled, link-down-on-close is forced on\n"); + } mutex_init(&pf->switch_mutex); sw_init_done: |