From b5ca15ad7e6189f39dff73d786e41d2a507f7b8b Mon Sep 17 00:00:00 2001 From: Mark Bloch Date: Tue, 23 Jan 2018 11:16:30 +0000 Subject: [PATCH] IB/mlx5: Add proper representors support This commit adds full support for IB representor: 1) Representors profile, We add two new profiles: nic_rep_profile - This profile will be used to create an IB device that represents the PF/UPLINK. rep_profile - This profile will be used to create an IB device that represents VFs. Each VF will be its own representor. 2) Proper load/unload callbacks, Those are called by the E-Switch when moving to/from switchdev mode. 3) Different flow DB handling for when we in switchdev mode. Signed-off-by: Mark Bloch Signed-off-by: Leon Romanovsky Signed-off-by: Saeed Mahameed --- drivers/infiniband/hw/mlx5/ib_rep.c | 65 ++++++++++++++ drivers/infiniband/hw/mlx5/ib_rep.h | 7 ++ drivers/infiniband/hw/mlx5/main.c | 125 ++++++++++++++++++++------- drivers/infiniband/hw/mlx5/mlx5_ib.h | 25 ++++++ 4 files changed, 192 insertions(+), 30 deletions(-) diff --git a/drivers/infiniband/hw/mlx5/ib_rep.c b/drivers/infiniband/hw/mlx5/ib_rep.c index a5d0c3917568..61cc3d7db257 100644 --- a/drivers/infiniband/hw/mlx5/ib_rep.c +++ b/drivers/infiniband/hw/mlx5/ib_rep.c @@ -5,6 +5,42 @@ #include "ib_rep.h" +static const struct mlx5_ib_profile rep_profile = { + STAGE_CREATE(MLX5_IB_STAGE_INIT, + mlx5_ib_stage_init_init, + mlx5_ib_stage_init_cleanup), + STAGE_CREATE(MLX5_IB_STAGE_FLOW_DB, + mlx5_ib_stage_rep_flow_db_init, + NULL), + STAGE_CREATE(MLX5_IB_STAGE_CAPS, + mlx5_ib_stage_caps_init, + NULL), + STAGE_CREATE(MLX5_IB_STAGE_NON_DEFAULT_CB, + mlx5_ib_stage_rep_non_default_cb, + NULL), + STAGE_CREATE(MLX5_IB_STAGE_ROCE, + mlx5_ib_stage_rep_roce_init, + mlx5_ib_stage_rep_roce_cleanup), + STAGE_CREATE(MLX5_IB_STAGE_DEVICE_RESOURCES, + mlx5_ib_stage_dev_res_init, + mlx5_ib_stage_dev_res_cleanup), + STAGE_CREATE(MLX5_IB_STAGE_COUNTERS, + mlx5_ib_stage_counters_init, + mlx5_ib_stage_counters_cleanup), + STAGE_CREATE(MLX5_IB_STAGE_BFREG, + mlx5_ib_stage_bfrag_init, + mlx5_ib_stage_bfrag_cleanup), + STAGE_CREATE(MLX5_IB_STAGE_IB_REG, + mlx5_ib_stage_ib_reg_init, + mlx5_ib_stage_ib_reg_cleanup), + STAGE_CREATE(MLX5_IB_STAGE_UMR_RESOURCES, + mlx5_ib_stage_umr_res_init, + mlx5_ib_stage_umr_res_cleanup), + STAGE_CREATE(MLX5_IB_STAGE_CLASS_ATTR, + mlx5_ib_stage_class_attr_init, + NULL), +}; + static int mlx5_ib_nic_rep_load(struct mlx5_core_dev *dev, struct mlx5_eswitch_rep *rep) { @@ -14,17 +50,41 @@ mlx5_ib_nic_rep_load(struct mlx5_core_dev *dev, struct mlx5_eswitch_rep *rep) static void mlx5_ib_nic_rep_unload(struct mlx5_eswitch_rep *rep) { + rep->rep_if[REP_IB].priv = NULL; } static int mlx5_ib_vport_rep_load(struct mlx5_core_dev *dev, struct mlx5_eswitch_rep *rep) { + struct mlx5_ib_dev *ibdev; + + ibdev = (struct mlx5_ib_dev *)ib_alloc_device(sizeof(*ibdev)); + if (!ibdev) + return -ENOMEM; + + ibdev->rep = rep; + ibdev->mdev = dev; + ibdev->num_ports = max(MLX5_CAP_GEN(dev, num_ports), + MLX5_CAP_GEN(dev, num_vhca_ports)); + if (!__mlx5_ib_add(ibdev, &rep_profile)) + return -EINVAL; + + rep->rep_if[REP_IB].priv = ibdev; + return 0; } static void mlx5_ib_vport_rep_unload(struct mlx5_eswitch_rep *rep) { + struct mlx5_ib_dev *dev; + + if (!rep->rep_if[REP_IB].priv) + return; + + dev = mlx5_ib_rep_to_dev(rep); + __mlx5_ib_remove(dev, dev->profile, MLX5_IB_STAGE_MAX); + rep->rep_if[REP_IB].priv = NULL; } static void *mlx5_ib_vport_get_proto_dev(struct mlx5_eswitch_rep *rep) @@ -98,6 +158,11 @@ struct net_device *mlx5_ib_get_rep_netdev(struct mlx5_eswitch *esw, return mlx5_eswitch_get_proto_dev(esw, vport_index, REP_ETH); } +struct mlx5_ib_dev *mlx5_ib_get_uplink_ibdev(struct mlx5_eswitch *esw) +{ + return mlx5_eswitch_uplink_get_proto_dev(esw, REP_IB); +} + struct mlx5_eswitch_rep *mlx5_ib_vport_rep(struct mlx5_eswitch *esw, int vport) { return mlx5_eswitch_vport_rep(esw, vport); diff --git a/drivers/infiniband/hw/mlx5/ib_rep.h b/drivers/infiniband/hw/mlx5/ib_rep.h index 832cfd382ecc..046fd942fd46 100644 --- a/drivers/infiniband/hw/mlx5/ib_rep.h +++ b/drivers/infiniband/hw/mlx5/ib_rep.h @@ -13,6 +13,7 @@ u8 mlx5_ib_eswitch_mode(struct mlx5_eswitch *esw); struct mlx5_ib_dev *mlx5_ib_get_rep_ibdev(struct mlx5_eswitch *esw, int vport_index); +struct mlx5_ib_dev *mlx5_ib_get_uplink_ibdev(struct mlx5_eswitch *esw); struct mlx5_eswitch_rep *mlx5_ib_vport_rep(struct mlx5_eswitch *esw, int vport_index); void mlx5_ib_register_vport_reps(struct mlx5_ib_dev *dev); @@ -34,6 +35,12 @@ struct mlx5_ib_dev *mlx5_ib_get_rep_ibdev(struct mlx5_eswitch *esw, return NULL; } +static inline +struct mlx5_ib_dev *mlx5_ib_get_uplink_ibdev(struct mlx5_eswitch *esw) +{ + return NULL; +} + static inline struct mlx5_eswitch_rep *mlx5_ib_vport_rep(struct mlx5_eswitch *esw, int vport_index) diff --git a/drivers/infiniband/hw/mlx5/main.c b/drivers/infiniband/hw/mlx5/main.c index 2b05ba747d39..ee55d7d64554 100644 --- a/drivers/infiniband/hw/mlx5/main.c +++ b/drivers/infiniband/hw/mlx5/main.c @@ -4554,7 +4554,7 @@ static void mlx5_ib_cleanup_multiport_master(struct mlx5_ib_dev *dev) mlx5_nic_vport_disable_roce(dev->mdev); } -static void mlx5_ib_stage_init_cleanup(struct mlx5_ib_dev *dev) +void mlx5_ib_stage_init_cleanup(struct mlx5_ib_dev *dev) { mlx5_ib_cleanup_multiport_master(dev); #ifdef CONFIG_INFINIBAND_ON_DEMAND_PAGING @@ -4563,7 +4563,7 @@ static void mlx5_ib_stage_init_cleanup(struct mlx5_ib_dev *dev) kfree(dev->port); } -static int mlx5_ib_stage_init_init(struct mlx5_ib_dev *dev) +int mlx5_ib_stage_init_init(struct mlx5_ib_dev *dev) { struct mlx5_core_dev *mdev = dev->mdev; const char *name; @@ -4647,12 +4647,26 @@ static int mlx5_ib_stage_flow_db_init(struct mlx5_ib_dev *dev) return 0; } +int mlx5_ib_stage_rep_flow_db_init(struct mlx5_ib_dev *dev) +{ + struct mlx5_ib_dev *nic_dev; + + nic_dev = mlx5_ib_get_uplink_ibdev(dev->mdev->priv.eswitch); + + if (!nic_dev) + return -EINVAL; + + dev->flow_db = nic_dev->flow_db; + + return 0; +} + static void mlx5_ib_stage_flow_db_cleanup(struct mlx5_ib_dev *dev) { kfree(dev->flow_db); } -static int mlx5_ib_stage_caps_init(struct mlx5_ib_dev *dev) +int mlx5_ib_stage_caps_init(struct mlx5_ib_dev *dev) { struct mlx5_core_dev *mdev = dev->mdev; int err; @@ -4793,7 +4807,7 @@ static int mlx5_ib_stage_non_default_cb(struct mlx5_ib_dev *dev) return 0; } -static int mlx5_ib_stage_rep_non_default_cb(struct mlx5_ib_dev *dev) +int mlx5_ib_stage_rep_non_default_cb(struct mlx5_ib_dev *dev) { dev->ib_dev.get_port_immutable = mlx5_port_rep_immutable; dev->ib_dev.query_port = mlx5_ib_rep_query_port; @@ -4905,12 +4919,12 @@ static void mlx5_ib_stage_roce_cleanup(struct mlx5_ib_dev *dev) } } -static int mlx5_ib_stage_dev_res_init(struct mlx5_ib_dev *dev) +int mlx5_ib_stage_dev_res_init(struct mlx5_ib_dev *dev) { return create_dev_resources(&dev->devr); } -static void mlx5_ib_stage_dev_res_cleanup(struct mlx5_ib_dev *dev) +void mlx5_ib_stage_dev_res_cleanup(struct mlx5_ib_dev *dev) { destroy_dev_resources(&dev->devr); } @@ -4922,7 +4936,7 @@ static int mlx5_ib_stage_odp_init(struct mlx5_ib_dev *dev) return mlx5_ib_odp_init_one(dev); } -static int mlx5_ib_stage_counters_init(struct mlx5_ib_dev *dev) +int mlx5_ib_stage_counters_init(struct mlx5_ib_dev *dev) { if (MLX5_CAP_GEN(dev->mdev, max_qp_cnt)) { dev->ib_dev.get_hw_stats = mlx5_ib_get_hw_stats; @@ -4934,7 +4948,7 @@ static int mlx5_ib_stage_counters_init(struct mlx5_ib_dev *dev) return 0; } -static void mlx5_ib_stage_counters_cleanup(struct mlx5_ib_dev *dev) +void mlx5_ib_stage_counters_cleanup(struct mlx5_ib_dev *dev) { if (MLX5_CAP_GEN(dev->mdev, max_qp_cnt)) mlx5_ib_dealloc_counters(dev); @@ -4965,7 +4979,7 @@ static void mlx5_ib_stage_uar_cleanup(struct mlx5_ib_dev *dev) mlx5_put_uars_page(dev->mdev, dev->mdev->priv.uar); } -static int mlx5_ib_stage_bfrag_init(struct mlx5_ib_dev *dev) +int mlx5_ib_stage_bfrag_init(struct mlx5_ib_dev *dev) { int err; @@ -4980,28 +4994,28 @@ static int mlx5_ib_stage_bfrag_init(struct mlx5_ib_dev *dev) return err; } -static void mlx5_ib_stage_bfrag_cleanup(struct mlx5_ib_dev *dev) +void mlx5_ib_stage_bfrag_cleanup(struct mlx5_ib_dev *dev) { mlx5_free_bfreg(dev->mdev, &dev->fp_bfreg); mlx5_free_bfreg(dev->mdev, &dev->bfreg); } -static int mlx5_ib_stage_ib_reg_init(struct mlx5_ib_dev *dev) +int mlx5_ib_stage_ib_reg_init(struct mlx5_ib_dev *dev) { return ib_register_device(&dev->ib_dev, NULL); } -static void mlx5_ib_stage_ib_reg_cleanup(struct mlx5_ib_dev *dev) +void mlx5_ib_stage_ib_reg_cleanup(struct mlx5_ib_dev *dev) { ib_unregister_device(&dev->ib_dev); } -static int mlx5_ib_stage_umr_res_init(struct mlx5_ib_dev *dev) +int mlx5_ib_stage_umr_res_init(struct mlx5_ib_dev *dev) { return create_umr_res(dev); } -static void mlx5_ib_stage_umr_res_cleanup(struct mlx5_ib_dev *dev) +void mlx5_ib_stage_umr_res_cleanup(struct mlx5_ib_dev *dev) { destroy_umrc_res(dev); } @@ -5018,7 +5032,7 @@ static void mlx5_ib_stage_delay_drop_cleanup(struct mlx5_ib_dev *dev) cancel_delay_drop(dev); } -static int mlx5_ib_stage_class_attr_init(struct mlx5_ib_dev *dev) +int mlx5_ib_stage_class_attr_init(struct mlx5_ib_dev *dev) { int err; int i; @@ -5045,9 +5059,9 @@ static void mlx5_ib_stage_rep_reg_cleanup(struct mlx5_ib_dev *dev) mlx5_ib_unregister_vport_reps(dev); } -static void __mlx5_ib_remove(struct mlx5_ib_dev *dev, - const struct mlx5_ib_profile *profile, - int stage) +void __mlx5_ib_remove(struct mlx5_ib_dev *dev, + const struct mlx5_ib_profile *profile, + int stage) { /* Number of stages to cleanup */ while (stage) { @@ -5061,23 +5075,14 @@ static void __mlx5_ib_remove(struct mlx5_ib_dev *dev, static void *mlx5_ib_add_slave_port(struct mlx5_core_dev *mdev, u8 port_num); -static void *__mlx5_ib_add(struct mlx5_core_dev *mdev, - const struct mlx5_ib_profile *profile) +void *__mlx5_ib_add(struct mlx5_ib_dev *dev, + const struct mlx5_ib_profile *profile) { - struct mlx5_ib_dev *dev; int err; int i; printk_once(KERN_INFO "%s", mlx5_version); - dev = (struct mlx5_ib_dev *)ib_alloc_device(sizeof(*dev)); - if (!dev) - return NULL; - - dev->mdev = mdev; - dev->num_ports = max(MLX5_CAP_GEN(mdev, num_ports), - MLX5_CAP_GEN(mdev, num_vhca_ports)); - for (i = 0; i < MLX5_IB_STAGE_MAX; i++) { if (profile->stage[i].init) { err = profile->stage[i].init(dev); @@ -5145,6 +5150,48 @@ static const struct mlx5_ib_profile pf_profile = { NULL), }; +static const struct mlx5_ib_profile nic_rep_profile = { + STAGE_CREATE(MLX5_IB_STAGE_INIT, + mlx5_ib_stage_init_init, + mlx5_ib_stage_init_cleanup), + STAGE_CREATE(MLX5_IB_STAGE_FLOW_DB, + mlx5_ib_stage_flow_db_init, + mlx5_ib_stage_flow_db_cleanup), + STAGE_CREATE(MLX5_IB_STAGE_CAPS, + mlx5_ib_stage_caps_init, + NULL), + STAGE_CREATE(MLX5_IB_STAGE_NON_DEFAULT_CB, + mlx5_ib_stage_rep_non_default_cb, + NULL), + STAGE_CREATE(MLX5_IB_STAGE_ROCE, + mlx5_ib_stage_rep_roce_init, + mlx5_ib_stage_rep_roce_cleanup), + STAGE_CREATE(MLX5_IB_STAGE_DEVICE_RESOURCES, + mlx5_ib_stage_dev_res_init, + mlx5_ib_stage_dev_res_cleanup), + STAGE_CREATE(MLX5_IB_STAGE_COUNTERS, + mlx5_ib_stage_counters_init, + mlx5_ib_stage_counters_cleanup), + STAGE_CREATE(MLX5_IB_STAGE_UAR, + mlx5_ib_stage_uar_init, + mlx5_ib_stage_uar_cleanup), + STAGE_CREATE(MLX5_IB_STAGE_BFREG, + mlx5_ib_stage_bfrag_init, + mlx5_ib_stage_bfrag_cleanup), + STAGE_CREATE(MLX5_IB_STAGE_IB_REG, + mlx5_ib_stage_ib_reg_init, + mlx5_ib_stage_ib_reg_cleanup), + STAGE_CREATE(MLX5_IB_STAGE_UMR_RESOURCES, + mlx5_ib_stage_umr_res_init, + mlx5_ib_stage_umr_res_cleanup), + STAGE_CREATE(MLX5_IB_STAGE_CLASS_ATTR, + mlx5_ib_stage_class_attr_init, + NULL), + STAGE_CREATE(MLX5_IB_STAGE_REP_REG, + mlx5_ib_stage_rep_reg_init, + mlx5_ib_stage_rep_reg_cleanup), +}; + static void *mlx5_ib_add_slave_port(struct mlx5_core_dev *mdev, u8 port_num) { struct mlx5_ib_multiport_info *mpi; @@ -5190,8 +5237,11 @@ static void *mlx5_ib_add_slave_port(struct mlx5_core_dev *mdev, u8 port_num) static void *mlx5_ib_add(struct mlx5_core_dev *mdev) { enum rdma_link_layer ll; + struct mlx5_ib_dev *dev; int port_type_cap; + printk_once(KERN_INFO "%s", mlx5_version); + port_type_cap = MLX5_CAP_GEN(mdev, port_type); ll = mlx5_port_type_cap_to_rdma_ll(port_type_cap); @@ -5201,7 +5251,22 @@ static void *mlx5_ib_add(struct mlx5_core_dev *mdev) return mlx5_ib_add_slave_port(mdev, port_num); } - return __mlx5_ib_add(mdev, &pf_profile); + dev = (struct mlx5_ib_dev *)ib_alloc_device(sizeof(*dev)); + if (!dev) + return NULL; + + dev->mdev = mdev; + dev->num_ports = max(MLX5_CAP_GEN(mdev, num_ports), + MLX5_CAP_GEN(mdev, num_vhca_ports)); + + if (MLX5_VPORT_MANAGER(mdev) && + mlx5_ib_eswitch_mode(mdev->priv.eswitch) == SRIOV_OFFLOADS) { + dev->rep = mlx5_ib_vport_rep(mdev->priv.eswitch, 0); + + return __mlx5_ib_add(dev, &nic_rep_profile); + } + + return __mlx5_ib_add(dev, &pf_profile); } static void mlx5_ib_remove(struct mlx5_core_dev *mdev, void *context) diff --git a/drivers/infiniband/hw/mlx5/mlx5_ib.h b/drivers/infiniband/hw/mlx5/mlx5_ib.h index 86d07670bfeb..e0bad28e0f09 100644 --- a/drivers/infiniband/hw/mlx5/mlx5_ib.h +++ b/drivers/infiniband/hw/mlx5/mlx5_ib.h @@ -1054,6 +1054,31 @@ static inline void mlx5_odp_populate_klm(struct mlx5_klm *pklm, size_t offset, #endif /* CONFIG_INFINIBAND_ON_DEMAND_PAGING */ +/* Needed for rep profile */ +int mlx5_ib_stage_init_init(struct mlx5_ib_dev *dev); +void mlx5_ib_stage_init_cleanup(struct mlx5_ib_dev *dev); +int mlx5_ib_stage_rep_flow_db_init(struct mlx5_ib_dev *dev); +int mlx5_ib_stage_caps_init(struct mlx5_ib_dev *dev); +int mlx5_ib_stage_rep_non_default_cb(struct mlx5_ib_dev *dev); +int mlx5_ib_stage_rep_roce_init(struct mlx5_ib_dev *dev); +void mlx5_ib_stage_rep_roce_cleanup(struct mlx5_ib_dev *dev); +int mlx5_ib_stage_dev_res_init(struct mlx5_ib_dev *dev); +void mlx5_ib_stage_dev_res_cleanup(struct mlx5_ib_dev *dev); +int mlx5_ib_stage_counters_init(struct mlx5_ib_dev *dev); +void mlx5_ib_stage_counters_cleanup(struct mlx5_ib_dev *dev); +int mlx5_ib_stage_bfrag_init(struct mlx5_ib_dev *dev); +void mlx5_ib_stage_bfrag_cleanup(struct mlx5_ib_dev *dev); +int mlx5_ib_stage_ib_reg_init(struct mlx5_ib_dev *dev); +void mlx5_ib_stage_ib_reg_cleanup(struct mlx5_ib_dev *dev); +int mlx5_ib_stage_umr_res_init(struct mlx5_ib_dev *dev); +void mlx5_ib_stage_umr_res_cleanup(struct mlx5_ib_dev *dev); +int mlx5_ib_stage_class_attr_init(struct mlx5_ib_dev *dev); +void __mlx5_ib_remove(struct mlx5_ib_dev *dev, + const struct mlx5_ib_profile *profile, + int stage); +void *__mlx5_ib_add(struct mlx5_ib_dev *dev, + const struct mlx5_ib_profile *profile); + int mlx5_ib_get_vf_config(struct ib_device *device, int vf, u8 port, struct ifla_vf_info *info); int mlx5_ib_set_vf_link_state(struct ib_device *device, int vf, -- GitLab