From e80541ecabd57b69726232b89242e28d8123cccc Mon Sep 17 00:00:00 2001 From: Saeed Mahameed Date: Mon, 5 Jun 2017 15:17:12 +0300 Subject: [PATCH] net/mlx5: Add CONFIG_MLX5_ESWITCH Kconfig Allow to selectively build the driver with or without sriov eswitch, VF representors and TC offloads. Also remove the need of two ndo ops structures (sriov & basic) and keep only one unified ndo ops, compile out VF SRIOV ndos when not needed (MLX5_ESWITCH=n), and for VF netdev calling those ndos will result in returning -EPERM. Signed-off-by: Saeed Mahameed Reviewed-by: Or Gerlitz Cc: Jes Sorensen Cc: kernel-team@fb.com --- .../net/ethernet/mellanox/mlx5/core/Kconfig | 11 ++++ .../net/ethernet/mellanox/mlx5/core/Makefile | 9 ++-- .../net/ethernet/mellanox/mlx5/core/en_main.c | 53 ++++++------------- .../net/ethernet/mellanox/mlx5/core/en_rep.h | 8 +++ .../net/ethernet/mellanox/mlx5/core/en_rx.c | 2 + .../net/ethernet/mellanox/mlx5/core/en_tc.h | 7 +++ drivers/net/ethernet/mellanox/mlx5/core/eq.c | 4 -- .../net/ethernet/mellanox/mlx5/core/eswitch.h | 23 +++++--- .../net/ethernet/mellanox/mlx5/core/main.c | 10 +--- .../net/ethernet/mellanox/mlx5/core/sriov.c | 14 +---- 10 files changed, 69 insertions(+), 72 deletions(-) diff --git a/drivers/net/ethernet/mellanox/mlx5/core/Kconfig b/drivers/net/ethernet/mellanox/mlx5/core/Kconfig index d7174295b6ef..fdaef00465d7 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/Kconfig +++ b/drivers/net/ethernet/mellanox/mlx5/core/Kconfig @@ -44,6 +44,17 @@ config MLX5_MPFS is enabled to allow passing user configured unicast MAC addresses to the requesting PF. +config MLX5_ESWITCH + bool "Mellanox Technologies MLX5 SRIOV E-Switch support" + depends on MLX5_CORE_EN + default y + ---help--- + Mellanox Technologies Ethernet SRIOV E-Switch support in ConnectX NIC. + E-Switch provides internal SRIOV packet steering and switching for the + enabled VFs and PF in two available modes: + Legacy SRIOV mode (L2 mac vlan steering based). + Switchdev mode (eswitch offloads). + config MLX5_CORE_EN_DCB bool "Data Center Bridging (DCB) Support" default y diff --git a/drivers/net/ethernet/mellanox/mlx5/core/Makefile b/drivers/net/ethernet/mellanox/mlx5/core/Makefile index c867e48f8a4c..22ed657d263a 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/Makefile +++ b/drivers/net/ethernet/mellanox/mlx5/core/Makefile @@ -11,13 +11,14 @@ mlx5_core-$(CONFIG_MLX5_ACCEL) += accel/ipsec.o mlx5_core-$(CONFIG_MLX5_FPGA) += fpga/cmd.o fpga/core.o fpga/conn.o fpga/sdk.o \ fpga/ipsec.o -mlx5_core-$(CONFIG_MLX5_CORE_EN) += eswitch.o eswitch_offloads.o \ - en_main.o en_common.o en_fs.o en_ethtool.o en_tx.o \ - en_rx.o en_rx_am.o en_txrx.o en_clock.o vxlan.o \ - en_tc.o en_arfs.o en_rep.o en_fs_ethtool.o en_selftest.o +mlx5_core-$(CONFIG_MLX5_CORE_EN) += en_main.o en_common.o en_fs.o en_ethtool.o \ + en_tx.o en_rx.o en_rx_am.o en_txrx.o en_clock.o vxlan.o \ + en_arfs.o en_fs_ethtool.o en_selftest.o mlx5_core-$(CONFIG_MLX5_MPFS) += lib/mpfs.o +mlx5_core-$(CONFIG_MLX5_ESWITCH) += eswitch.o eswitch_offloads.o en_rep.o en_tc.o + mlx5_core-$(CONFIG_MLX5_CORE_EN_DCB) += en_dcbnl.o mlx5_core-$(CONFIG_MLX5_CORE_IPOIB) += ipoib/ipoib.o ipoib/ethtool.o diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_main.c b/drivers/net/ethernet/mellanox/mlx5/core/en_main.c index e3c858c44532..b19e9d235008 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/en_main.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/en_main.c @@ -3025,6 +3025,7 @@ static int mlx5e_ndo_setup_tc(struct net_device *dev, u32 handle, u32 chain_index, __be16 proto, struct tc_to_netdev *tc) { +#ifdef CONFIG_MLX5_ESWITCH struct mlx5e_priv *priv = netdev_priv(dev); if (TC_H_MAJ(handle) != TC_H_MAJ(TC_H_INGRESS)) @@ -3048,6 +3049,7 @@ static int mlx5e_ndo_setup_tc(struct net_device *dev, u32 handle, } mqprio: +#endif if (tc->type != TC_SETUP_MQPRIO) return -EINVAL; @@ -3350,6 +3352,7 @@ static int mlx5e_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd) } } +#ifdef CONFIG_MLX5_ESWITCH static int mlx5e_set_vf_mac(struct net_device *dev, int vf, u8 *mac) { struct mlx5e_priv *priv = netdev_priv(dev); @@ -3452,6 +3455,7 @@ static int mlx5e_get_vf_stats(struct net_device *dev, return mlx5_eswitch_get_vport_stats(mdev->priv.eswitch, vf + 1, vf_stats); } +#endif static void mlx5e_add_vxlan_port(struct net_device *netdev, struct udp_tunnel_info *ti) @@ -3685,7 +3689,7 @@ static void mlx5e_netpoll(struct net_device *dev) } #endif -static const struct net_device_ops mlx5e_netdev_ops_basic = { +static const struct net_device_ops mlx5e_netdev_ops = { .ndo_open = mlx5e_open, .ndo_stop = mlx5e_close, .ndo_start_xmit = mlx5e_xmit, @@ -3711,34 +3715,7 @@ static const struct net_device_ops mlx5e_netdev_ops_basic = { #ifdef CONFIG_NET_POLL_CONTROLLER .ndo_poll_controller = mlx5e_netpoll, #endif -}; - -static const struct net_device_ops mlx5e_netdev_ops_sriov = { - .ndo_open = mlx5e_open, - .ndo_stop = mlx5e_close, - .ndo_start_xmit = mlx5e_xmit, - .ndo_setup_tc = mlx5e_ndo_setup_tc, - .ndo_select_queue = mlx5e_select_queue, - .ndo_get_stats64 = mlx5e_get_stats, - .ndo_set_rx_mode = mlx5e_set_rx_mode, - .ndo_set_mac_address = mlx5e_set_mac, - .ndo_vlan_rx_add_vid = mlx5e_vlan_rx_add_vid, - .ndo_vlan_rx_kill_vid = mlx5e_vlan_rx_kill_vid, - .ndo_set_features = mlx5e_set_features, - .ndo_change_mtu = mlx5e_change_mtu, - .ndo_do_ioctl = mlx5e_ioctl, - .ndo_set_tx_maxrate = mlx5e_set_tx_maxrate, - .ndo_udp_tunnel_add = mlx5e_add_vxlan_port, - .ndo_udp_tunnel_del = mlx5e_del_vxlan_port, - .ndo_features_check = mlx5e_features_check, -#ifdef CONFIG_RFS_ACCEL - .ndo_rx_flow_steer = mlx5e_rx_flow_steer, -#endif - .ndo_tx_timeout = mlx5e_tx_timeout, - .ndo_xdp = mlx5e_xdp, -#ifdef CONFIG_NET_POLL_CONTROLLER - .ndo_poll_controller = mlx5e_netpoll, -#endif +#ifdef CONFIG_MLX5_ESWITCH /* SRIOV E-Switch NDOs */ .ndo_set_vf_mac = mlx5e_set_vf_mac, .ndo_set_vf_vlan = mlx5e_set_vf_vlan, @@ -3750,6 +3727,7 @@ static const struct net_device_ops mlx5e_netdev_ops_sriov = { .ndo_get_vf_stats = mlx5e_get_vf_stats, .ndo_has_offload_stats = mlx5e_has_offload_stats, .ndo_get_offload_stats = mlx5e_get_offload_stats, +#endif }; static int mlx5e_check_required_hca_cap(struct mlx5_core_dev *mdev) @@ -3979,9 +3957,11 @@ static void mlx5e_set_netdev_dev_addr(struct net_device *netdev) } } +#if IS_ENABLED(CONFIG_NET_SWITCHDEV) && IS_ENABLED(CONFIG_MLX5_ESWITCH) static const struct switchdev_ops mlx5e_switchdev_ops = { .switchdev_port_attr_get = mlx5e_attr_get, }; +#endif static void mlx5e_build_nic_netdev(struct net_device *netdev) { @@ -3992,15 +3972,12 @@ static void mlx5e_build_nic_netdev(struct net_device *netdev) SET_NETDEV_DEV(netdev, &mdev->pdev->dev); - if (MLX5_CAP_GEN(mdev, vport_group_manager)) { - netdev->netdev_ops = &mlx5e_netdev_ops_sriov; + netdev->netdev_ops = &mlx5e_netdev_ops; + #ifdef CONFIG_MLX5_CORE_EN_DCB - if (MLX5_CAP_GEN(mdev, qos)) - netdev->dcbnl_ops = &mlx5e_dcbnl_ops; + if (MLX5_CAP_GEN(mdev, vport_group_manager) && MLX5_CAP_GEN(mdev, qos)) + netdev->dcbnl_ops = &mlx5e_dcbnl_ops; #endif - } else { - netdev->netdev_ops = &mlx5e_netdev_ops_basic; - } netdev->watchdog_timeo = 15 * HZ; @@ -4072,7 +4049,7 @@ static void mlx5e_build_nic_netdev(struct net_device *netdev) mlx5e_set_netdev_dev_addr(netdev); -#ifdef CONFIG_NET_SWITCHDEV +#if IS_ENABLED(CONFIG_NET_SWITCHDEV) && IS_ENABLED(CONFIG_MLX5_ESWITCH) if (MLX5_VPORT_MANAGER(mdev)) netdev->switchdev_ops = &mlx5e_switchdev_ops; #endif @@ -4431,6 +4408,7 @@ static void *mlx5e_add(struct mlx5_core_dev *mdev) if (err) return NULL; +#ifdef CONFIG_MLX5_ESWITCH if (MLX5_VPORT_MANAGER(mdev)) { rpriv = mlx5e_alloc_nic_rep_priv(mdev); if (!rpriv) { @@ -4438,6 +4416,7 @@ static void *mlx5e_add(struct mlx5_core_dev *mdev) return NULL; } } +#endif netdev = mlx5e_create_netdev(mdev, &mlx5e_nic_profile, rpriv); if (!netdev) { diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_rep.h b/drivers/net/ethernet/mellanox/mlx5/core/en_rep.h index 23e43bbf928d..5659ed9f51e6 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/en_rep.h +++ b/drivers/net/ethernet/mellanox/mlx5/core/en_rep.h @@ -38,6 +38,7 @@ #include "eswitch.h" #include "en.h" +#ifdef CONFIG_MLX5_ESWITCH struct mlx5e_neigh_update_table { struct rhashtable neigh_ht; /* Save the neigh hash entries in a list in addition to the hash table @@ -142,5 +143,12 @@ void mlx5e_rep_encap_entry_detach(struct mlx5e_priv *priv, struct mlx5e_encap_entry *e); void mlx5e_rep_queue_neigh_stats_work(struct mlx5e_priv *priv); +#else /* CONFIG_MLX5_ESWITCH */ +static inline void mlx5e_register_vport_reps(struct mlx5e_priv *priv) {} +static inline void mlx5e_unregister_vport_reps(struct mlx5e_priv *priv) {} +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) {} +#endif #endif /* __MLX5E_REP_H__ */ diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_rx.c b/drivers/net/ethernet/mellanox/mlx5/core/en_rx.c index 325b2c8c1c6d..8e224bcbc6a6 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/en_rx.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/en_rx.c @@ -857,6 +857,7 @@ wq_ll_pop: &wqe->next.next_wqe_index); } +#ifdef CONFIG_MLX5_ESWITCH void mlx5e_handle_rx_cqe_rep(struct mlx5e_rq *rq, struct mlx5_cqe64 *cqe) { struct net_device *netdev = rq->netdev; @@ -901,6 +902,7 @@ wq_ll_pop: mlx5_wq_ll_pop(&rq->wq, wqe_counter_be, &wqe->next.next_wqe_index); } +#endif static inline void mlx5e_mpwqe_fill_rx_skb(struct mlx5e_rq *rq, struct mlx5_cqe64 *cqe, diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_tc.h b/drivers/net/ethernet/mellanox/mlx5/core/en_tc.h index ecbe30d808ae..36473ec65ce8 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/en_tc.h +++ b/drivers/net/ethernet/mellanox/mlx5/core/en_tc.h @@ -35,6 +35,7 @@ #define MLX5E_TC_FLOW_ID_MASK 0x0000ffff +#ifdef CONFIG_MLX5_ESWITCH int mlx5e_tc_init(struct mlx5e_priv *priv); void mlx5e_tc_cleanup(struct mlx5e_priv *priv); @@ -60,4 +61,10 @@ static inline int mlx5e_tc_num_filters(struct mlx5e_priv *priv) return atomic_read(&priv->fs.tc.ht.nelems); } +#else /* CONFIG_MLX5_ESWITCH */ +static inline int mlx5e_tc_init(struct mlx5e_priv *priv) { return 0; } +static inline void mlx5e_tc_cleanup(struct mlx5e_priv *priv) {} +static inline int mlx5e_tc_num_filters(struct mlx5e_priv *priv) { return 0; } +#endif + #endif /* __MLX5_EN_TC_H__ */ diff --git a/drivers/net/ethernet/mellanox/mlx5/core/eq.c b/drivers/net/ethernet/mellanox/mlx5/core/eq.c index 24d2f707fdfc..de704ff5619a 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/eq.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/eq.c @@ -36,9 +36,7 @@ #include #include "mlx5_core.h" #include "fpga/core.h" -#ifdef CONFIG_MLX5_CORE_EN #include "eswitch.h" -#endif enum { MLX5_EQE_SIZE = sizeof(struct mlx5_eqe), @@ -467,11 +465,9 @@ static irqreturn_t mlx5_eq_int(int irq, void *eq_ptr) } break; -#ifdef CONFIG_MLX5_CORE_EN case MLX5_EVENT_TYPE_NIC_VPORT_CHANGE: mlx5_eswitch_vport_event(dev->priv.eswitch, eqe); break; -#endif case MLX5_EVENT_TYPE_PORT_MODULE_EVENT: mlx5_port_module_event(dev, eqe); diff --git a/drivers/net/ethernet/mellanox/mlx5/core/eswitch.h b/drivers/net/ethernet/mellanox/mlx5/core/eswitch.h index 701d228de4ad..565c8b7a399a 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/eswitch.h +++ b/drivers/net/ethernet/mellanox/mlx5/core/eswitch.h @@ -39,6 +39,14 @@ #include #include "lib/mpfs.h" +enum { + SRIOV_NONE, + SRIOV_LEGACY, + SRIOV_OFFLOADS +}; + +#ifdef CONFIG_MLX5_ESWITCH + #define MLX5_MAX_UC_PER_VPORT(dev) \ (1 << MLX5_CAP_GEN(dev, log_max_current_uc_list)) @@ -125,12 +133,6 @@ struct mlx5_eswitch_fdb { }; }; -enum { - SRIOV_NONE, - SRIOV_LEGACY, - SRIOV_OFFLOADS -}; - struct mlx5_esw_sq { struct mlx5_flow_handle *send_to_vport_rule; struct list_head list; @@ -292,4 +294,13 @@ int __mlx5_eswitch_set_vport_vlan(struct mlx5_eswitch *esw, #define esw_debug(dev, format, ...) \ mlx5_core_dbg_mask(dev, MLX5_DEBUG_ESWITCH_MASK, format, ##__VA_ARGS__) +#else /* CONFIG_MLX5_ESWITCH */ +/* eswitch API stubs */ +static inline int mlx5_eswitch_init(struct mlx5_core_dev *dev) { return 0; } +static inline void mlx5_eswitch_cleanup(struct mlx5_eswitch *esw) {} +static inline void mlx5_eswitch_vport_event(struct mlx5_eswitch *esw, struct mlx5_eqe *eqe) {} +static inline int mlx5_eswitch_enable_sriov(struct mlx5_eswitch *esw, int nvfs, int mode) { return 0; } +static inline void mlx5_eswitch_disable_sriov(struct mlx5_eswitch *esw) {} +#endif /* CONFIG_MLX5_ESWITCH */ + #endif /* __MLX5_ESWITCH_H__ */ diff --git a/drivers/net/ethernet/mellanox/mlx5/core/main.c b/drivers/net/ethernet/mellanox/mlx5/core/main.c index d4a9c9b7b6a2..124c7c3c3a00 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/main.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/main.c @@ -54,9 +54,7 @@ #include "mlx5_core.h" #include "fs_core.h" #include "lib/mpfs.h" -#ifdef CONFIG_MLX5_CORE_EN #include "eswitch.h" -#endif #include "lib/mlx5.h" #include "fpga/core.h" #include "accel/ipsec.h" @@ -953,13 +951,11 @@ static int mlx5_init_once(struct mlx5_core_dev *dev, struct mlx5_priv *priv) goto err_rl_cleanup; } -#ifdef CONFIG_MLX5_CORE_EN err = mlx5_eswitch_init(dev); if (err) { dev_err(&pdev->dev, "Failed to init eswitch %d\n", err); goto err_mpfs_cleanup; } -#endif err = mlx5_sriov_init(dev); if (err) { @@ -978,10 +974,8 @@ static int mlx5_init_once(struct mlx5_core_dev *dev, struct mlx5_priv *priv) err_sriov_cleanup: mlx5_sriov_cleanup(dev); err_eswitch_cleanup: -#ifdef CONFIG_MLX5_CORE_EN mlx5_eswitch_cleanup(dev->priv.eswitch); err_mpfs_cleanup: -#endif mlx5_mpfs_cleanup(dev); err_rl_cleanup: mlx5_cleanup_rl_table(dev); @@ -1002,9 +996,7 @@ static void mlx5_cleanup_once(struct mlx5_core_dev *dev) { mlx5_fpga_cleanup(dev); mlx5_sriov_cleanup(dev); -#ifdef CONFIG_MLX5_CORE_EN mlx5_eswitch_cleanup(dev->priv.eswitch); -#endif mlx5_mpfs_cleanup(dev); mlx5_cleanup_rl_table(dev); mlx5_cleanup_reserved_gids(dev); @@ -1311,7 +1303,7 @@ struct mlx5_core_event_handler { }; static const struct devlink_ops mlx5_devlink_ops = { -#ifdef CONFIG_MLX5_CORE_EN +#ifdef CONFIG_MLX5_ESWITCH .eswitch_mode_set = mlx5_devlink_eswitch_mode_set, .eswitch_mode_get = mlx5_devlink_eswitch_mode_get, .eswitch_inline_mode_set = mlx5_devlink_eswitch_inline_mode_set, diff --git a/drivers/net/ethernet/mellanox/mlx5/core/sriov.c b/drivers/net/ethernet/mellanox/mlx5/core/sriov.c index bf99d40e30b4..5e7ffc9fad78 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/sriov.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/sriov.c @@ -33,9 +33,7 @@ #include #include #include "mlx5_core.h" -#ifdef CONFIG_MLX5_CORE_EN #include "eswitch.h" -#endif bool mlx5_sriov_is_enabled(struct mlx5_core_dev *dev) { @@ -57,14 +55,12 @@ static int mlx5_device_enable_sriov(struct mlx5_core_dev *dev, int num_vfs) return -EBUSY; } -#ifdef CONFIG_MLX5_CORE_EN err = mlx5_eswitch_enable_sriov(dev->priv.eswitch, num_vfs, SRIOV_LEGACY); if (err) { mlx5_core_warn(dev, "failed to enable eswitch SRIOV (%d)\n", err); return err; } -#endif for (vf = 0; vf < num_vfs; vf++) { err = mlx5_core_enable_hca(dev, vf + 1); @@ -88,11 +84,7 @@ static void mlx5_device_disable_sriov(struct mlx5_core_dev *dev) int vf; if (!sriov->enabled_vfs) -#ifdef CONFIG_MLX5_CORE_EN - goto disable_sriov_resources; -#else - return; -#endif + goto out; for (vf = 0; vf < sriov->num_vfs; vf++) { if (!sriov->vfs_ctx[vf].enabled) @@ -106,10 +98,8 @@ static void mlx5_device_disable_sriov(struct mlx5_core_dev *dev) sriov->enabled_vfs--; } -#ifdef CONFIG_MLX5_CORE_EN -disable_sriov_resources: +out: mlx5_eswitch_disable_sriov(dev->priv.eswitch); -#endif if (mlx5_wait_for_vf_pages(dev)) mlx5_core_warn(dev, "timeout reclaiming VFs pages\n"); -- 2.20.1