This patch enabled querying Forward Error Correction(FEC) capabilities, set FEC mode and get current FEC mode functions.
Signed-off-by: Qiming Yang <qiming.y...@intel.com> Signed-off-by: Zhichao Zeng <zhichaox.z...@intel.com> --- v5: fix some judgments v4: fix some logic v3: optimize code details v2: update NIC feature document --- doc/guides/nics/features/i40e.ini | 1 + doc/guides/rel_notes/release_24_07.rst | 4 + drivers/net/i40e/i40e_ethdev.c | 237 +++++++++++++++++++++++++ 3 files changed, 242 insertions(+) diff --git a/doc/guides/nics/features/i40e.ini b/doc/guides/nics/features/i40e.ini index ef7514c44b..4610444ace 100644 --- a/doc/guides/nics/features/i40e.ini +++ b/doc/guides/nics/features/i40e.ini @@ -32,6 +32,7 @@ Traffic manager = Y CRC offload = Y VLAN offload = Y QinQ offload = P +FEC = Y L3 checksum offload = P L4 checksum offload = P Inner L3 checksum = P diff --git a/doc/guides/rel_notes/release_24_07.rst b/doc/guides/rel_notes/release_24_07.rst index a69f24cf99..1e65f70d6c 100644 --- a/doc/guides/rel_notes/release_24_07.rst +++ b/doc/guides/rel_notes/release_24_07.rst @@ -55,6 +55,10 @@ New Features Also, make sure to start the actual text at the margin. ======================================================= +* **Updated Intel i40e driver.** + + * Added support for configuring the Forward Error Correction(FEC) mode, querying + * FEC capabilities and current FEC mode from a device. Removed Items ------------- diff --git a/drivers/net/i40e/i40e_ethdev.c b/drivers/net/i40e/i40e_ethdev.c index 380ce1a720..2235bbefda 100644 --- a/drivers/net/i40e/i40e_ethdev.c +++ b/drivers/net/i40e/i40e_ethdev.c @@ -406,6 +406,10 @@ static void i40e_ethertype_filter_restore(struct i40e_pf *pf); static void i40e_tunnel_filter_restore(struct i40e_pf *pf); static void i40e_filter_restore(struct i40e_pf *pf); static void i40e_notify_all_vfs_link_status(struct rte_eth_dev *dev); +static int i40e_fec_get_capability(struct rte_eth_dev *dev, + struct rte_eth_fec_capa *speed_fec_capa, unsigned int num); +static int i40e_fec_get(struct rte_eth_dev *dev, uint32_t *fec_capa); +static int i40e_fec_set(struct rte_eth_dev *dev, uint32_t fec_capa); static const char *const valid_keys[] = { ETH_I40E_FLOATING_VEB_ARG, @@ -521,6 +525,9 @@ static const struct eth_dev_ops i40e_eth_dev_ops = { .tm_ops_get = i40e_tm_ops_get, .tx_done_cleanup = i40e_tx_done_cleanup, .get_monitor_addr = i40e_get_monitor_addr, + .fec_get_capability = i40e_fec_get_capability, + .fec_get = i40e_fec_get, + .fec_set = i40e_fec_set, }; /* store statistics names and its offset in stats structure */ @@ -12297,6 +12304,236 @@ i40e_cloud_filter_qinq_create(struct i40e_pf *pf) return ret; } +static int +i40e_fec_get_capability(struct rte_eth_dev *dev, + struct rte_eth_fec_capa *speed_fec_capa, __rte_unused unsigned int num) +{ + struct i40e_hw *hw = I40E_DEV_PRIVATE_TO_HW(dev->data->dev_private); + + if (hw->mac.type == I40E_MAC_X722 && + !(hw->flags & I40E_HW_FLAG_X722_FEC_REQUEST_CAPABLE)) { + PMD_DRV_LOG(ERR, "Setting FEC encoding not supported by" + " firmware. Please update the NVM image.\n"); + return -ENOTSUP; + } + + if (hw->device_id == I40E_DEV_ID_25G_SFP28 || + hw->device_id == I40E_DEV_ID_25G_B) { + if (speed_fec_capa) { + speed_fec_capa->speed = RTE_ETH_SPEED_NUM_25G; + speed_fec_capa->capa = RTE_ETH_FEC_MODE_CAPA_MASK(NOFEC) | + RTE_ETH_FEC_MODE_CAPA_MASK(BASER) | + RTE_ETH_FEC_MODE_CAPA_MASK(AUTO) | + RTE_ETH_FEC_MODE_CAPA_MASK(RS); + } + + /* since HW only supports 25G */ + return 1; + } else if (hw->device_id == I40E_DEV_ID_KX_X722) { + if (speed_fec_capa) { + speed_fec_capa->speed = RTE_ETH_SPEED_NUM_25G; + speed_fec_capa->capa = RTE_ETH_FEC_MODE_CAPA_MASK(AUTO) | + RTE_ETH_FEC_MODE_CAPA_MASK(RS); + } + return 1; + } + + return -ENOTSUP; +} + +static int +i40e_fec_get(struct rte_eth_dev *dev, uint32_t *fec_capa) +{ + struct i40e_hw *hw = I40E_DEV_PRIVATE_TO_HW(dev->data->dev_private); + struct i40e_aq_get_phy_abilities_resp abilities = {0}; + struct i40e_link_status link_status = {0}; + uint8_t current_fec_mode = 0, fec_config = 0; + bool link_up, enable_lse; + int ret = 0; + + enable_lse = dev->data->dev_conf.intr_conf.lsc ? true : false; + /* Get link info */ + ret = i40e_aq_get_link_info(hw, enable_lse, &link_status, NULL); + if (ret != I40E_SUCCESS) { + PMD_DRV_LOG(ERR, "Failed to get link information: %d\n", + ret); + return -ENOTSUP; + } + + link_up = link_status.link_info & I40E_AQ_LINK_UP; + + ret = i40e_aq_get_phy_capabilities(hw, false, false, &abilities, + NULL); + if (ret) { + PMD_DRV_LOG(ERR, "Failed to get PHY capabilities: %d\n", + ret); + return -ENOTSUP; + } + + /** + * If link is down and AUTO is enabled, AUTO is returned, + * otherwise, configured FEC mode is returned. + * If link is up, current FEC mode is returned. + */ + fec_config = abilities.fec_cfg_curr_mod_ext_info; + current_fec_mode = link_status.fec_info; + + if (link_up) { + switch (current_fec_mode) { + case I40E_AQ_CONFIG_FEC_KR_ENA: + *fec_capa = RTE_ETH_FEC_MODE_TO_CAPA(RTE_ETH_FEC_BASER); + break; + case I40E_AQ_CONFIG_FEC_RS_ENA: + *fec_capa = RTE_ETH_FEC_MODE_TO_CAPA(RTE_ETH_FEC_RS); + break; + case 0: + *fec_capa = RTE_ETH_FEC_MODE_TO_CAPA(RTE_ETH_FEC_NOFEC); + break; + default: + return -EINVAL; + } + return 0; + } + + if (fec_config & I40E_AQ_ENABLE_FEC_AUTO) { + *fec_capa = RTE_ETH_FEC_MODE_TO_CAPA(RTE_ETH_FEC_AUTO); + return 0; + } + + uint32_t temp_fec_capa = 0; + if (fec_config & I40E_AQ_ENABLE_FEC_KR) + temp_fec_capa |= RTE_ETH_FEC_MODE_TO_CAPA(RTE_ETH_FEC_BASER); + if (configured_fec_cfg & I40E_AQ_ENABLE_FEC_RS) + temp_fec_capa |= RTE_ETH_FEC_MODE_TO_CAPA(RTE_ETH_FEC_RS); + if (configured_fec_cfg == 0) + temp_fec_capa = RTE_ETH_FEC_MODE_TO_CAPA(RTE_ETH_FEC_NOFEC); + + *fec_capa = temp_fec_capa; + return 0; +} + +static int +i40e_fec_set(struct rte_eth_dev *dev, uint32_t fec_capa) +{ + struct i40e_hw *hw = I40E_DEV_PRIVATE_TO_HW(dev->data->dev_private); + struct i40e_aq_get_phy_abilities_resp abilities = {0}; + struct i40e_aq_set_phy_config config = {0}; + enum i40e_status_code status; + uint8_t req_fec = 0, fec_auto = 0, fec_kr = 0, fec_rs = 0; + + if (hw->device_id != I40E_DEV_ID_25G_SFP28 && + hw->device_id != I40E_DEV_ID_25G_B && + hw->device_id != I40E_DEV_ID_KX_X722) { + return -ENOTSUP; + } + + if (hw->mac.type == I40E_MAC_X722 && + !(hw->flags & I40E_HW_FLAG_X722_FEC_REQUEST_CAPABLE)) { + PMD_DRV_LOG(ERR, "Setting FEC encoding not supported by" + " firmware. Please update the NVM image.\n"); + return -ENOTSUP; + } + + /** + * Copy the current user PHY configuration. The current user PHY + * configuration is initialized during probe from PHY capabilities + * software mode, and updated on set PHY configuration. + */ + if (fec_capa == 0) + return -EINVAL; + + if (fec_capa & RTE_ETH_FEC_MODE_CAPA_MASK(AUTO)) + fec_auto = 1; + + if (fec_capa & RTE_ETH_FEC_MODE_CAPA_MASK(BASER)) + fec_kr = 1; + + if (fec_capa & RTE_ETH_FEC_MODE_CAPA_MASK(RS)) + fec_rs = 1; + + if (fec_auto) { + if (hw->mac.type == I40E_MAC_X722) { + PMD_DRV_LOG(ERR, "X722 Unsupported FEC mode: AUTO"); + return -EINVAL; + } + if (fec_kr || fec_rs) { + if (fec_kr) + req_fec = I40E_AQ_SET_FEC_ABILITY_KR | + I40E_AQ_SET_FEC_REQUEST_KR; + if (fec_rs) { + if (hw->mac.type == I40E_MAC_X722) { + PMD_DRV_LOG(ERR, "X722 Unsupported FEC mode: RS"); + return -EINVAL; + } + req_fec = I40E_AQ_SET_FEC_ABILITY_RS | + I40E_AQ_SET_FEC_REQUEST_RS; + } + } else { + if (hw->mac.type == I40E_MAC_X722) { + req_fec = I40E_AQ_SET_FEC_ABILITY_KR | + I40E_AQ_SET_FEC_REQUEST_KR; + } else { + req_fec = I40E_AQ_SET_FEC_ABILITY_KR | + I40E_AQ_SET_FEC_REQUEST_KR | + I40E_AQ_SET_FEC_ABILITY_RS | + I40E_AQ_SET_FEC_REQUEST_RS; + } + } + } else { + if (fec_kr ^ fec_rs) { + if (fec_kr) { + req_fec = I40E_AQ_SET_FEC_ABILITY_KR | + I40E_AQ_SET_FEC_REQUEST_KR; + } else { + if (hw->mac.type == I40E_MAC_X722) { + PMD_DRV_LOG(ERR, "X722 Unsupported FEC mode: RS"); + return -EINVAL; + } + req_fec = I40E_AQ_SET_FEC_ABILITY_RS | + I40E_AQ_SET_FEC_REQUEST_RS; + } + } else { + return -EINVAL; + } + } + + /* Get the current phy config */ + status = i40e_aq_get_phy_capabilities(hw, false, false, &abilities, + NULL); + if (status) { + PMD_DRV_LOG(ERR, "Failed to get PHY capabilities: %d\n", + status); + return -ENOTSUP; + } + + if (abilities.fec_cfg_curr_mod_ext_info != req_fec) { + config.phy_type = abilities.phy_type; + config.abilities = abilities.abilities | + I40E_AQ_PHY_ENABLE_ATOMIC_LINK; + config.phy_type_ext = abilities.phy_type_ext; + config.link_speed = abilities.link_speed; + config.eee_capability = abilities.eee_capability; + config.eeer = abilities.eeer_val; + config.low_power_ctrl = abilities.d3_lpan; + config.fec_config = req_fec & I40E_AQ_PHY_FEC_CONFIG_MASK; + status = i40e_aq_set_phy_config(hw, &config, NULL); + if (status) { + PMD_DRV_LOG(ERR, "Failed to set PHY capabilities: %d\n", + status); + return -ENOTSUP; + } + } + + status = i40e_update_link_info(hw); + if (status) { + PMD_DRV_LOG(ERR, "Failed to set PHY capabilities: %d\n", + status); + return -ENOTSUP; + } + + return 0; +} + RTE_LOG_REGISTER_SUFFIX(i40e_logtype_init, init, NOTICE); RTE_LOG_REGISTER_SUFFIX(i40e_logtype_driver, driver, NOTICE); #ifdef RTE_ETHDEV_DEBUG_RX -- 2.34.1