From: Leon Romanovsky leonro@nvidia.com
Reuse auxiliary bus to perform device management of the ethernet part of the mlx5 driver.
Signed-off-by: Leon Romanovsky leonro@nvidia.com --- drivers/net/ethernet/mellanox/mlx5/core/dev.c | 74 ++++++++++ .../net/ethernet/mellanox/mlx5/core/en_main.c | 133 ++++++++---------- .../net/ethernet/mellanox/mlx5/core/en_rep.c | 41 +++++- .../net/ethernet/mellanox/mlx5/core/en_rep.h | 6 +- .../net/ethernet/mellanox/mlx5/core/eswitch.c | 6 +- drivers/net/ethernet/mellanox/mlx5/core/lag.c | 2 + .../net/ethernet/mellanox/mlx5/core/main.c | 6 +- .../ethernet/mellanox/mlx5/core/mlx5_core.h | 2 +- 8 files changed, 181 insertions(+), 89 deletions(-)
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/dev.c b/drivers/net/ethernet/mellanox/mlx5/core/dev.c index 76eb09f4adba..6d413c622785 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/dev.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/dev.c @@ -31,6 +31,7 @@ */
#include <linux/mlx5/driver.h> +#include <linux/mlx5/eswitch.h> #include <linux/mlx5/mlx5_ifc_vdpa.h> #include "mlx5_core.h"
@@ -52,6 +53,75 @@ enum { MLX5_INTERFACE_ATTACHED, };
+static bool is_eth_rep_supported(struct mlx5_core_dev *dev) +{ + if (!IS_ENABLED(CONFIG_MLX5_ESWITCH)) + return false; + + if (!MLX5_ESWITCH_MANAGER(dev)) + return false; + + if (mlx5_eswitch_mode(dev->priv.eswitch) != MLX5_ESWITCH_OFFLOADS) + return false; + + return true; +} + +static bool is_eth_supported(struct mlx5_core_dev *dev) +{ + if (!IS_ENABLED(CONFIG_MLX5_CORE_EN)) + return false; + + if (is_eth_rep_supported(dev)) + return false; + + if (MLX5_CAP_GEN(dev, port_type) != MLX5_CAP_PORT_TYPE_ETH) + return false; + + if (!MLX5_CAP_GEN(dev, eth_net_offloads)) { + mlx5_core_warn(dev, "Missing eth_net_offloads capability\n"); + return false; + } + + if (!MLX5_CAP_GEN(dev, nic_flow_table)) { + mlx5_core_warn(dev, "Missing nic_flow_table capability\n"); + return false; + } + + if (!MLX5_CAP_ETH(dev, csum_cap)) { + mlx5_core_warn(dev, "Missing csum_cap capability\n"); + return false; + } + + if (!MLX5_CAP_ETH(dev, max_lso_cap)) { + mlx5_core_warn(dev, "Missing max_lso_cap capability\n"); + return false; + } + + if (!MLX5_CAP_ETH(dev, vlan_cap)) { + mlx5_core_warn(dev, "Missing vlan_cap capability\n"); + return false; + } + + if (!MLX5_CAP_ETH(dev, rss_ind_tbl_cap)) { + mlx5_core_warn(dev, "Missing rss_ind_tbl_cap capability\n"); + return false; + } + + if (MLX5_CAP_FLOWTABLE(dev, + flow_table_properties_nic_receive.max_ft_level) < 3) { + mlx5_core_warn(dev, "max_ft_level < 3\n"); + return false; + } + + if (!MLX5_CAP_ETH(dev, self_lb_en_modifiable)) + mlx5_core_warn(dev, "Self loop back prevention is not supported\n"); + if (!MLX5_CAP_GEN(dev, cq_moderation)) + mlx5_core_warn(dev, "CQ moderation is not supported\n"); + + return true; +} + static bool is_vnet_supported(struct mlx5_core_dev *dev) { if (!IS_ENABLED(CONFIG_MLX5_VDPA_NET)) @@ -80,6 +150,10 @@ static const struct mlx5_adev_device { } mlx5_adev_devices[] = { [MLX5_INTERFACE_PROTOCOL_VDPA] = { .suffix = "vnet", .is_supported = &is_vnet_supported }, + [MLX5_INTERFACE_PROTOCOL_ETH] = { .suffix = "eth", + .is_supported = &is_eth_supported }, + [MLX5_INTERFACE_PROTOCOL_ETH_REP] = { .suffix = "eth-rep", + .is_supported = &is_eth_rep_supported }, };
int mlx5_adev_idx_alloc(void) diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_main.c b/drivers/net/ethernet/mellanox/mlx5/core/en_main.c index b3f02aac7f26..3c4f880c6329 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/en_main.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/en_main.c @@ -4597,31 +4597,6 @@ const struct net_device_ops mlx5e_netdev_ops = { .ndo_get_devlink_port = mlx5e_get_devlink_port, };
-static int mlx5e_check_required_hca_cap(struct mlx5_core_dev *mdev) -{ - if (MLX5_CAP_GEN(mdev, port_type) != MLX5_CAP_PORT_TYPE_ETH) - return -EOPNOTSUPP; - if (!MLX5_CAP_GEN(mdev, eth_net_offloads) || - !MLX5_CAP_GEN(mdev, nic_flow_table) || - !MLX5_CAP_ETH(mdev, csum_cap) || - !MLX5_CAP_ETH(mdev, max_lso_cap) || - !MLX5_CAP_ETH(mdev, vlan_cap) || - !MLX5_CAP_ETH(mdev, rss_ind_tbl_cap) || - MLX5_CAP_FLOWTABLE(mdev, - flow_table_properties_nic_receive.max_ft_level) - < 3) { - mlx5_core_warn(mdev, - "Not creating net device, some required device capabilities are missing\n"); - return -EOPNOTSUPP; - } - if (!MLX5_CAP_ETH(mdev, self_lb_en_modifiable)) - mlx5_core_warn(mdev, "Self loop back prevention is not supported\n"); - if (!MLX5_CAP_GEN(mdev, cq_moderation)) - mlx5_core_warn(mdev, "CQ moderation is not supported\n"); - - return 0; -} - void mlx5e_build_default_indir_rqt(u32 *indirection_rqt, int len, int num_channels) { @@ -5440,13 +5415,12 @@ void mlx5e_destroy_netdev(struct mlx5e_priv *priv) free_netdev(netdev); }
-/* mlx5e_attach and mlx5e_detach scope should be only creating/destroying - * hardware contexts and to connect it to the current netdev. - */ -static int mlx5e_attach(struct mlx5_core_dev *mdev, void *vpriv) +static int mlx5e_resume(struct auxiliary_device *adev) { - struct mlx5e_priv *priv = vpriv; + struct mlx5_adev *edev = container_of(adev, struct mlx5_adev, adev); + struct mlx5e_priv *priv = dev_get_drvdata(&adev->dev); struct net_device *netdev = priv->netdev; + struct mlx5_core_dev *mdev = edev->mdev; int err;
if (netif_device_present(netdev)) @@ -5465,109 +5439,112 @@ static int mlx5e_attach(struct mlx5_core_dev *mdev, void *vpriv) return 0; }
-static void mlx5e_detach(struct mlx5_core_dev *mdev, void *vpriv) +static int mlx5e_suspend(struct auxiliary_device *adev, pm_message_t state) { - struct mlx5e_priv *priv = vpriv; + struct mlx5e_priv *priv = dev_get_drvdata(&adev->dev); struct net_device *netdev = priv->netdev; - -#ifdef CONFIG_MLX5_ESWITCH - if (MLX5_ESWITCH_MANAGER(mdev) && vpriv == mdev) - return; -#endif + struct mlx5_core_dev *mdev = priv->mdev;
if (!netif_device_present(netdev)) - return; + return -ENODEV;
mlx5e_detach_netdev(priv); mlx5e_destroy_mdev_resources(mdev); + return 0; }
-static void *mlx5e_add(struct mlx5_core_dev *mdev) +static int mlx5e_probe(struct auxiliary_device *adev, + const struct auxiliary_device_id *id) { + struct mlx5_adev *edev = container_of(adev, struct mlx5_adev, adev); + struct mlx5_core_dev *mdev = edev->mdev; struct net_device *netdev; + pm_message_t state = {}; void *priv; int err; int nch;
- err = mlx5e_check_required_hca_cap(mdev); - if (err) - return NULL; - -#ifdef CONFIG_MLX5_ESWITCH - if (MLX5_ESWITCH_MANAGER(mdev) && - mlx5_eswitch_mode(mdev->priv.eswitch) == MLX5_ESWITCH_OFFLOADS) { - mlx5e_rep_register_vport_reps(mdev); - return mdev; - } -#endif - nch = mlx5e_get_max_num_channels(mdev); netdev = mlx5e_create_netdev(mdev, &mlx5e_nic_profile, nch, NULL); if (!netdev) { mlx5_core_err(mdev, "mlx5e_create_netdev failed\n"); - return NULL; + return -ENOMEM; }
dev_net_set(netdev, mlx5_core_net(mdev)); priv = netdev_priv(netdev); + dev_set_drvdata(&adev->dev, priv);
- err = mlx5e_attach(mdev, priv); + err = mlx5e_resume(adev); if (err) { - mlx5_core_err(mdev, "mlx5e_attach failed, %d\n", err); + mlx5_core_err(mdev, "mlx5e_resume failed, %d\n", err); goto err_destroy_netdev; }
err = register_netdev(netdev); if (err) { mlx5_core_err(mdev, "register_netdev failed, %d\n", err); - goto err_detach; + goto err_resume; }
mlx5e_devlink_port_type_eth_set(priv);
mlx5e_dcbnl_init_app(priv); - return priv; + return 0;
-err_detach: - mlx5e_detach(mdev, priv); +err_resume: + mlx5e_suspend(adev, state); err_destroy_netdev: mlx5e_destroy_netdev(priv); - return NULL; + return err; }
-static void mlx5e_remove(struct mlx5_core_dev *mdev, void *vpriv) +static int mlx5e_remove(struct auxiliary_device *adev) { - struct mlx5e_priv *priv; + struct mlx5e_priv *priv = dev_get_drvdata(&adev->dev); + pm_message_t state = {};
-#ifdef CONFIG_MLX5_ESWITCH - if (MLX5_ESWITCH_MANAGER(mdev) && vpriv == mdev) { - mlx5e_rep_unregister_vport_reps(mdev); - return; - } -#endif - priv = vpriv; mlx5e_dcbnl_delete_app(priv); unregister_netdev(priv->netdev); - mlx5e_detach(mdev, vpriv); + mlx5e_suspend(adev, state); mlx5e_destroy_netdev(priv); + return 0; }
-static struct mlx5_interface mlx5e_interface = { - .add = mlx5e_add, - .remove = mlx5e_remove, - .attach = mlx5e_attach, - .detach = mlx5e_detach, - .protocol = MLX5_INTERFACE_PROTOCOL_ETH, +static const struct auxiliary_device_id mlx5e_id_table[] = { + { .name = MLX5_ADEV_NAME ".eth", }, + {}, };
-void mlx5e_init(void) +MODULE_DEVICE_TABLE(auxiliary, mlx5e_id_table); + +static struct auxiliary_driver mlx5e_driver = { + .name = "eth", + .probe = mlx5e_probe, + .remove = mlx5e_remove, + .suspend = mlx5e_suspend, + .resume = mlx5e_resume, + .id_table = mlx5e_id_table, +}; + +int mlx5e_init(void) { + int ret; + mlx5e_ipsec_build_inverse_table(); mlx5e_build_ptys2ethtool_map(); - mlx5_register_interface(&mlx5e_interface); + ret = mlx5e_rep_init(); + if (ret) + return ret; + + ret = auxiliary_driver_register(&mlx5e_driver); + if (ret) + mlx5e_rep_cleanup(); + return ret; }
void mlx5e_cleanup(void) { - mlx5_unregister_interface(&mlx5e_interface); + auxiliary_driver_unregister(&mlx5e_driver); + mlx5e_rep_cleanup(); } diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_rep.c b/drivers/net/ethernet/mellanox/mlx5/core/en_rep.c index ef2f8889ba0f..6a65a732de56 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/en_rep.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/en_rep.c @@ -1315,16 +1315,49 @@ static const struct mlx5_eswitch_rep_ops rep_ops = { .get_proto_dev = mlx5e_vport_rep_get_proto_dev };
-void mlx5e_rep_register_vport_reps(struct mlx5_core_dev *mdev) +static int mlx5e_rep_probe(struct auxiliary_device *adev, + const struct auxiliary_device_id *id) { - struct mlx5_eswitch *esw = mdev->priv.eswitch; + struct mlx5_adev *edev = container_of(adev, struct mlx5_adev, adev); + struct mlx5_core_dev *mdev = edev->mdev; + struct mlx5_eswitch *esw;
+ esw = mdev->priv.eswitch; mlx5_eswitch_register_vport_reps(esw, &rep_ops, REP_ETH); + return 0; }
-void mlx5e_rep_unregister_vport_reps(struct mlx5_core_dev *mdev) +static int mlx5e_rep_remove(struct auxiliary_device *adev) { - struct mlx5_eswitch *esw = mdev->priv.eswitch; + struct mlx5_adev *vdev = container_of(adev, struct mlx5_adev, adev); + struct mlx5_core_dev *mdev = vdev->mdev; + struct mlx5_eswitch *esw;
+ esw = mdev->priv.eswitch; mlx5_eswitch_unregister_vport_reps(esw, REP_ETH); + return 0; +} + +static const struct auxiliary_device_id mlx5e_rep_id_table[] = { + { .name = MLX5_ADEV_NAME ".eth-rep", }, + {}, +}; + +MODULE_DEVICE_TABLE(auxiliary, mlx5e_rep_id_table); + +static struct auxiliary_driver mlx5e_rep_driver = { + .name = "eth-rep", + .probe = mlx5e_rep_probe, + .remove = mlx5e_rep_remove, + .id_table = mlx5e_rep_id_table, +}; + +int mlx5e_rep_init(void) +{ + return auxiliary_driver_register(&mlx5e_rep_driver); +} + +void mlx5e_rep_cleanup(void) +{ + auxiliary_driver_unregister(&mlx5e_rep_driver); } diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_rep.h b/drivers/net/ethernet/mellanox/mlx5/core/en_rep.h index 9020d1419bcf..5709b30bf4e1 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/en_rep.h +++ b/drivers/net/ethernet/mellanox/mlx5/core/en_rep.h @@ -203,8 +203,8 @@ struct mlx5e_rep_sq { struct list_head list; };
-void mlx5e_rep_register_vport_reps(struct mlx5_core_dev *mdev); -void mlx5e_rep_unregister_vport_reps(struct mlx5_core_dev *mdev); +int mlx5e_rep_init(void); +void mlx5e_rep_cleanup(void); int mlx5e_rep_bond_init(struct mlx5e_rep_priv *rpriv); void mlx5e_rep_bond_cleanup(struct mlx5e_rep_priv *rpriv); int mlx5e_rep_bond_enslave(struct mlx5_eswitch *esw, struct net_device *netdev, @@ -232,6 +232,8 @@ static inline bool mlx5e_eswitch_rep(struct net_device *netdev) static inline bool mlx5e_is_uplink_rep(struct mlx5e_priv *priv) { return false; } static inline int mlx5e_add_sqs_fwd_rules(struct mlx5e_priv *priv) { return 0; } static inline void mlx5e_remove_sqs_fwd_rules(struct mlx5e_priv *priv) {} +static inline int mlx5e_rep_init(void) { return 0; }; +static inline void mlx5e_rep_cleanup(void) {}; #endif
static inline bool mlx5e_is_vport_rep(struct mlx5e_priv *priv) diff --git a/drivers/net/ethernet/mellanox/mlx5/core/eswitch.c b/drivers/net/ethernet/mellanox/mlx5/core/eswitch.c index 2e14bf238588..78a854926b00 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/eswitch.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/eswitch.c @@ -1616,7 +1616,7 @@ int mlx5_eswitch_enable_locked(struct mlx5_eswitch *esw, int mode, int num_vfs) if (mode == MLX5_ESWITCH_LEGACY) { err = esw_legacy_enable(esw); } else { - mlx5_reload_interface(esw->dev, MLX5_INTERFACE_PROTOCOL_ETH); + mlx5_rescan_drivers(esw->dev); mlx5_reload_interface(esw->dev, MLX5_INTERFACE_PROTOCOL_IB); err = esw_offloads_enable(esw); } @@ -1637,7 +1637,7 @@ int mlx5_eswitch_enable_locked(struct mlx5_eswitch *esw, int mode, int num_vfs)
if (mode == MLX5_ESWITCH_OFFLOADS) { mlx5_reload_interface(esw->dev, MLX5_INTERFACE_PROTOCOL_IB); - mlx5_reload_interface(esw->dev, MLX5_INTERFACE_PROTOCOL_ETH); + mlx5_rescan_drivers(esw->dev); } esw_destroy_tsar(esw); return err; @@ -1701,7 +1701,7 @@ void mlx5_eswitch_disable_locked(struct mlx5_eswitch *esw, bool clear_vf)
if (old_mode == MLX5_ESWITCH_OFFLOADS) { mlx5_reload_interface(esw->dev, MLX5_INTERFACE_PROTOCOL_IB); - mlx5_reload_interface(esw->dev, MLX5_INTERFACE_PROTOCOL_ETH); + mlx5_rescan_drivers(esw->dev); } esw_destroy_tsar(esw);
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/lag.c b/drivers/net/ethernet/mellanox/mlx5/core/lag.c index 33081b24f10a..e4d4de1719bd 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/lag.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/lag.c @@ -596,6 +596,8 @@ void mlx5_lag_add(struct mlx5_core_dev *dev, struct net_device *netdev) if (err) mlx5_core_err(dev, "Failed to init multipath lag err=%d\n", err); + + return; }
/* Must be called with intf_mutex held */ diff --git a/drivers/net/ethernet/mellanox/mlx5/core/main.c b/drivers/net/ethernet/mellanox/mlx5/core/main.c index 9397762c3a69..0b4793aff274 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/main.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/main.c @@ -1677,7 +1677,11 @@ static int __init init(void) goto err_debug;
#ifdef CONFIG_MLX5_CORE_EN - mlx5e_init(); + err = mlx5e_init(); + if (err) { + pci_unregister_driver(&mlx5_core_driver); + goto err_debug; + } #endif
return 0; diff --git a/drivers/net/ethernet/mellanox/mlx5/core/mlx5_core.h b/drivers/net/ethernet/mellanox/mlx5/core/mlx5_core.h index 11195381a870..f7e44e04d465 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/mlx5_core.h +++ b/drivers/net/ethernet/mellanox/mlx5/core/mlx5_core.h @@ -217,7 +217,7 @@ int mlx5_firmware_flash(struct mlx5_core_dev *dev, const struct firmware *fw, int mlx5_fw_version_query(struct mlx5_core_dev *dev, u32 *running_ver, u32 *stored_ver);
-void mlx5e_init(void); +int mlx5e_init(void); void mlx5e_cleanup(void);
static inline bool mlx5_sriov_is_enabled(struct mlx5_core_dev *dev) -- 2.28.0