From 5734fe87486e858124ec30d73be0a265e02c042c Mon Sep 17 00:00:00 2001 From: =?utf8?q?Patryk=20Ma=C5=82ek?= Date: Tue, 30 Oct 2018 10:50:47 -0700 Subject: [PATCH] i40e: Allow disabling FW LLDP on X722 devices MIME-Version: 1.0 Content-Type: text/plain; charset=utf8 Content-Transfer-Encoding: 8bit This patch allows disabling FW LLDP agent on X722 devices. It also changes a source of information for this feature from pf->hw_features to pf->hw.flags which are set in i40e_init_adminq. Signed-off-by: Patryk Małek Tested-by: Andrew Bowers Signed-off-by: Jeff Kirsher --- drivers/net/ethernet/intel/i40e/i40e.h | 1 - drivers/net/ethernet/intel/i40e/i40e_common.c | 3 +++ drivers/net/ethernet/intel/i40e/i40e_ethtool.c | 13 +++++++------ drivers/net/ethernet/intel/i40e/i40e_main.c | 15 +++++++-------- 4 files changed, 17 insertions(+), 15 deletions(-) diff --git a/drivers/net/ethernet/intel/i40e/i40e.h b/drivers/net/ethernet/intel/i40e/i40e.h index 5595a4614206..cda37d7ae5d6 100644 --- a/drivers/net/ethernet/intel/i40e/i40e.h +++ b/drivers/net/ethernet/intel/i40e/i40e.h @@ -495,7 +495,6 @@ struct i40e_pf { #define I40E_HW_STOP_FW_LLDP BIT(16) #define I40E_HW_PORT_ID_VALID BIT(17) #define I40E_HW_RESTART_AUTONEG BIT(18) -#define I40E_HW_STOPPABLE_FW_LLDP BIT(19) u32 flags; #define I40E_FLAG_RX_CSUM_ENABLED BIT(0) diff --git a/drivers/net/ethernet/intel/i40e/i40e_common.c b/drivers/net/ethernet/intel/i40e/i40e_common.c index 85f75b5978fc..97a9b1fb4763 100644 --- a/drivers/net/ethernet/intel/i40e/i40e_common.c +++ b/drivers/net/ethernet/intel/i40e/i40e_common.c @@ -3723,6 +3723,9 @@ i40e_aq_set_dcb_parameters(struct i40e_hw *hw, bool dcb_enable, (struct i40e_aqc_set_dcb_parameters *)&desc.params.raw; i40e_status status; + if (!(hw->flags & I40E_HW_FLAG_FW_LLDP_STOPPABLE)) + return I40E_ERR_DEVICE_NOT_SUPPORTED; + i40e_fill_default_direct_cmd_desc(&desc, i40e_aqc_opc_set_dcb_parameters); diff --git a/drivers/net/ethernet/intel/i40e/i40e_ethtool.c b/drivers/net/ethernet/intel/i40e/i40e_ethtool.c index 9c1211ad2c6b..311edac272aa 100644 --- a/drivers/net/ethernet/intel/i40e/i40e_ethtool.c +++ b/drivers/net/ethernet/intel/i40e/i40e_ethtool.c @@ -4660,14 +4660,15 @@ flags_complete: return -EOPNOTSUPP; /* If the driver detected FW LLDP was disabled on init, this flag could - * be set, however we do not support _changing_ the flag if NPAR is - * enabled or FW API version < 1.7. There are situations where older - * FW versions/NPAR enabled PFs could disable LLDP, however we _must_ - * not allow the user to enable/disable LLDP with this flag on - * unsupported FW versions. + * be set, however we do not support _changing_ the flag: + * - on XL710 if NPAR is enabled or FW API version < 1.7 + * - on X722 with FW API version < 1.6 + * There are situations where older FW versions/NPAR enabled PFs could + * disable LLDP, however we _must_ not allow the user to enable/disable + * LLDP with this flag on unsupported FW versions. */ if (changed_flags & I40E_FLAG_DISABLE_FW_LLDP) { - if (!(pf->hw_features & I40E_HW_STOPPABLE_FW_LLDP)) { + if (!(pf->hw.flags & I40E_HW_FLAG_FW_LLDP_STOPPABLE)) { dev_warn(&pf->pdev->dev, "Device does not support changing FW LLDP\n"); return -EOPNOTSUPP; diff --git a/drivers/net/ethernet/intel/i40e/i40e_main.c b/drivers/net/ethernet/intel/i40e/i40e_main.c index dbd6fffd9b85..d4461eec26bd 100644 --- a/drivers/net/ethernet/intel/i40e/i40e_main.c +++ b/drivers/net/ethernet/intel/i40e/i40e_main.c @@ -11331,16 +11331,15 @@ static int i40e_sw_init(struct i40e_pf *pf) /* IWARP needs one extra vector for CQP just like MISC.*/ pf->num_iwarp_msix = (int)num_online_cpus() + 1; } - /* Stopping the FW LLDP engine is only supported on the - * XL710 with a FW ver >= 1.7. Also, stopping FW LLDP - * engine is not supported if NPAR is functioning on this - * part + /* Stopping FW LLDP engine is supported on XL710 and X722 + * starting from FW versions determined in i40e_init_adminq. + * Stopping the FW LLDP engine is not supported on XL710 + * if NPAR is functioning so unset this hw flag in this case. */ if (pf->hw.mac.type == I40E_MAC_XL710 && - !pf->hw.func_caps.npar_enable && - (pf->hw.aq.api_maj_ver > 1 || - (pf->hw.aq.api_maj_ver == 1 && pf->hw.aq.api_min_ver > 6))) - pf->hw_features |= I40E_HW_STOPPABLE_FW_LLDP; + pf->hw.func_caps.npar_enable && + (pf->hw.flags & I40E_HW_FLAG_FW_LLDP_STOPPABLE)) + pf->hw.flags &= ~I40E_HW_FLAG_FW_LLDP_STOPPABLE; #ifdef CONFIG_PCI_IOV if (pf->hw.func_caps.num_vfs && pf->hw.partition_id == 1) { -- 2.30.2