[net-next,05/19] net/mlx5: E-Switch, Enable/disable SF's vport during SF life cycle

Message ID	20191107160834.21087-5-parav@mellanox.com (mailing list archive)
State	New, archived
Headers	show Return-Path: <SRS0=VFBJ=Y7=vger.kernel.org=kvm-owner@kernel.org> From: Parav Pandit <parav@mellanox.com> To: alex.williamson@redhat.com, davem@davemloft.net, kvm@vger.kernel.org, netdev@vger.kernel.org Cc: saeedm@mellanox.com, kwankhede@nvidia.com, leon@kernel.org, cohuck@redhat.com, jiri@mellanox.com, linux-rdma@vger.kernel.org, Vu Pham <vuhuong@mellanox.com>, Parav Pandit <parav@mellanox.com> Subject: [PATCH net-next 05/19] net/mlx5: E-Switch, Enable/disable SF's vport during SF life cycle Date: Thu, 7 Nov 2019 10:08:20 -0600 Message-Id: <20191107160834.21087-5-parav@mellanox.com> In-Reply-To: <20191107160834.21087-1-parav@mellanox.com> References: <20191107160448.20962-1-parav@mellanox.com> <20191107160834.21087-1-parav@mellanox.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Sender: kvm-owner@vger.kernel.org Precedence: bulk
Series	Mellanox, mlx5 sub function support \| expand [net-next,00/19] Mellanox, mlx5 sub function support [net-next,01/19] net/mlx5: E-switch, Move devlink port close to eswitch port [net-next,02/19] net/mlx5: E-Switch, Add SF vport, vport-rep support [net-next,03/19] net/mlx5: Introduce SF table framework [net-next,04/19] net/mlx5: Introduce SF life cycle APIs to allocate/free [net-next,05/19] net/mlx5: E-Switch, Enable/disable SF's vport during SF life cycle [net-next,06/19] net/mlx5: Add support for mediated devices in switchdev mode [net-next,07/19] vfio/mdev: Introduce sha1 based mdev alias [net-next,08/19] vfio/mdev: Make mdev alias unique among all mdevs [net-next,09/19] vfio/mdev: Expose mdev alias in sysfs tree [net-next,10/19] vfio/mdev: Introduce an API mdev_alias [net-next,11/19] vfio/mdev: Improvise mdev life cycle and parent removal scheme [net-next,12/19] devlink: Introduce mdev port flavour [net-next,13/19] net/mlx5: Register SF devlink port [net-next,14/19] net/mlx5: Share irqs between SFs and parent PCI device [net-next,15/19] net/mlx5: Add load/unload routines for SF driver binding [net-next,16/19] net/mlx5: Implement dma ops and params for mediated device [net-next,17/19] net/mlx5: Add mdev driver to bind to mdev devices [net-next,18/19] Documentation: net: mlx5: Add mdev usage documentation [net-next,19/19] mtty: Optionally support mtty alias

diff --git a/drivers/net/ethernet/mellanox/mlx5/core/eswitch.c b/drivers/net/ethernet/mellanox/mlx5/core/eswitch.c index 87273be44dae..1c763a5c955c 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/eswitch.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/eswitch.c @@ -1532,9 +1532,9 @@ static void esw_destroy_tsar(struct mlx5_eswitch *esw) esw->qos.enabled = false; } -static int esw_vport_enable_qos(struct mlx5_eswitch *esw, - struct mlx5_vport *vport, - u32 initial_max_rate, u32 initial_bw_share) +int mlx5_eswitch_vport_enable_qos(struct mlx5_eswitch *esw, + struct mlx5_vport *vport, + u32 initial_max_rate, u32 initial_bw_share) { u32 sched_ctx[MLX5_ST_SZ_DW(scheduling_context)] = {0}; struct mlx5_core_dev *dev = esw->dev; @@ -1573,8 +1573,8 @@ static int esw_vport_enable_qos(struct mlx5_eswitch *esw, return 0; } -static void esw_vport_disable_qos(struct mlx5_eswitch *esw, - struct mlx5_vport *vport) +void mlx5_eswitch_vport_disable_qos(struct mlx5_eswitch *esw, + struct mlx5_vport *vport) { int err; @@ -1795,8 +1795,8 @@ static int esw_enable_vport(struct mlx5_eswitch *esw, struct mlx5_vport *vport, goto done; /* Attach vport to the eswitch rate limiter */ - if (esw_vport_enable_qos(esw, vport, vport->info.max_rate, - vport->qos.bw_share)) + if (mlx5_eswitch_vport_enable_qos(esw, vport, vport->info.max_rate, + vport->qos.bw_share)) esw_warn(esw->dev, "Failed to attach vport %d to eswitch rate limiter", vport_num); /* Sync with current vport context */ @@ -1840,7 +1840,7 @@ static void esw_disable_vport(struct mlx5_eswitch *esw, */ esw_vport_change_handle_locked(vport); vport->enabled_events = 0; - esw_vport_disable_qos(esw, vport); + mlx5_eswitch_vport_disable_qos(esw, vport); if (!mlx5_esw_is_manager_vport(esw, vport->vport) && esw->mode == MLX5_ESWITCH_LEGACY) diff --git a/drivers/net/ethernet/mellanox/mlx5/core/eswitch.h b/drivers/net/ethernet/mellanox/mlx5/core/eswitch.h index 21592ef6d05d..6c2ea3bb39cb 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/eswitch.h +++ b/drivers/net/ethernet/mellanox/mlx5/core/eswitch.h @@ -298,6 +298,13 @@ int mlx5_eswitch_get_vport_config(struct mlx5_eswitch *esw, int mlx5_eswitch_get_vport_stats(struct mlx5_eswitch *esw, u16 vport, struct ifla_vf_stats *vf_stats); +int mlx5_eswitch_vport_enable_qos(struct mlx5_eswitch *esw, + struct mlx5_vport *vport, + u32 initial_max_rate, u32 initial_bw_share); +void mlx5_eswitch_vport_disable_qos(struct mlx5_eswitch *esw, + struct mlx5_vport *vport); +int mlx5_eswitch_setup_sf_vport(struct mlx5_eswitch *esw, u16 vport_num); +void mlx5_eswitch_cleanup_sf_vport(struct mlx5_eswitch *esw, u16 vport_num); void mlx5_eswitch_del_send_to_vport_rule(struct mlx5_flow_handle *rule); int mlx5_eswitch_modify_esw_vport_context(struct mlx5_core_dev *dev, u16 vport, diff --git a/drivers/net/ethernet/mellanox/mlx5/core/eswitch_offloads.c b/drivers/net/ethernet/mellanox/mlx5/core/eswitch_offloads.c index ff084499d681..a6906bff37a3 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/eswitch_offloads.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/eswitch_offloads.c @@ -1624,6 +1624,117 @@ static int esw_offloads_load_all_reps(struct mlx5_eswitch *esw) return err; } +static int esw_offloads_load_vport_reps(struct mlx5_eswitch *esw, u16 vport_num) +{ + struct mlx5_eswitch_rep *rep; + u8 rep_type; + int err; + + rep = mlx5_eswitch_get_rep(esw, vport_num); + for (rep_type = 0; rep_type < NUM_REP_TYPES; rep_type++) { + err = __esw_offloads_load_rep(esw, rep, rep_type); + if (err) { + esw_warn(esw->dev, "Load vport(%d) rep type(%d) err!\n", + vport_num, rep_type); + goto err_reps; + } + } + + return 0; + +err_reps: + while (rep_type-- > 0) + __esw_offloads_unload_rep(esw, rep, rep_type); + return err; +} + +static void +esw_offloads_unload_vport_reps(struct mlx5_eswitch *esw, u16 vport_num) +{ + struct mlx5_eswitch_rep *rep; + u8 rep_type = NUM_REP_TYPES; + + rep = mlx5_eswitch_get_rep(esw, vport_num); + while (rep_type-- > 0) + __esw_offloads_unload_rep(esw, rep, rep_type); +} + +static int +esw_enable_sf_vport(struct mlx5_eswitch *esw, struct mlx5_vport *vport) +{ + int ret; + + ret = esw_vport_create_offloads_acl_tables(esw, vport); + if (ret) + return ret; + + mutex_lock(&esw->state_lock); + + mlx5_modify_nic_vport_mac_address(esw->dev, vport->vport, vport->info.mac); + mlx5_modify_nic_vport_node_guid(esw->dev, vport->vport, + vport->info.node_guid); + + /* Attach vport to the eswitch rate limiter */ + ret = mlx5_eswitch_vport_enable_qos(esw, vport, vport->info.max_rate, + vport->qos.bw_share); + if (ret) + goto qos_err; + + vport->enabled = true; + esw_debug(esw->dev, "Enabled SF vport(0x%x)\n", vport->vport); + + mutex_unlock(&esw->state_lock); + return 0; + +qos_err: + mutex_unlock(&esw->state_lock); + esw_vport_destroy_offloads_acl_tables(esw, vport); + return ret; +} + +static void +esw_disable_sf_vport(struct mlx5_eswitch *esw, struct mlx5_vport *vport) +{ + mutex_lock(&esw->state_lock); + + esw_debug(esw->dev, "Disabling vport(0x%x)\n", vport->vport); + vport->enabled = false; + mlx5_eswitch_vport_disable_qos(esw, vport); + + mutex_unlock(&esw->state_lock); + + esw_vport_destroy_offloads_acl_tables(esw, vport); +} + +int mlx5_eswitch_setup_sf_vport(struct mlx5_eswitch *esw, u16 vport_num) +{ + struct mlx5_vport *vport = mlx5_eswitch_get_vport(esw, vport_num); + int ret; + + if (IS_ERR(vport)) + return PTR_ERR(vport); + + ret = esw_enable_sf_vport(esw, vport); + if (ret) + return ret; + + ret = esw_offloads_load_vport_reps(esw, vport_num); + if (ret) + esw_disable_sf_vport(esw, vport); + return ret; +} + +void mlx5_eswitch_cleanup_sf_vport(struct mlx5_eswitch *esw, u16 vport_num) +{ + struct mlx5_vport *vport = mlx5_eswitch_get_vport(esw, vport_num); + + if (IS_ERR(vport)) + return; + + esw_offloads_unload_vport_reps(esw, vport_num); + esw_disable_sf_vport(esw, vport); +} + #define ESW_OFFLOADS_DEVCOM_PAIR (0) #define ESW_OFFLOADS_DEVCOM_UNPAIR (1) diff --git a/drivers/net/ethernet/mellanox/mlx5/core/meddev/sf.c b/drivers/net/ethernet/mellanox/mlx5/core/meddev/sf.c index d57109a9c53b..fb4ba7be0051 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/meddev/sf.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/meddev/sf.c @@ -7,6 +7,7 @@ #include <linux/bitmap.h> #include "sf.h" #include "mlx5_core.h" +#include "eswitch.h" static int mlx5_cmd_query_sf_partitions(struct mlx5_core_dev *mdev, u32 *out, int outlen) @@ -149,11 +150,17 @@ mlx5_sf_alloc(struct mlx5_core_dev *coredev, struct mlx5_sf_table *sf_table, if (ret) goto enable_err; + ret = mlx5_eswitch_setup_sf_vport(coredev->priv.eswitch, hw_function_id); + if (ret) + goto vport_err; + sf->idx = sf_id; sf->base_addr = sf_table->base_address + (sf->idx << (sf_table->log_sf_bar_size + 12)); return sf; +vport_err: + mlx5_core_disable_sf_hca(coredev, hw_function_id); enable_err: mlx5_cmd_dealloc_sf(coredev, hw_function_id); alloc_sf_err: @@ -169,6 +176,7 @@ void mlx5_sf_free(struct mlx5_core_dev *coredev, struct mlx5_sf_table *sf_table, u16 hw_function_id; hw_function_id = mlx5_sf_hw_id(coredev, sf->idx); + mlx5_eswitch_cleanup_sf_vport(coredev->priv.eswitch, hw_function_id); mlx5_core_disable_sf_hca(coredev, hw_function_id); mlx5_cmd_dealloc_sf(coredev, hw_function_id); free_sf_id(sf_table, sf->idx);

[net-next,05/19] net/mlx5: E-Switch, Enable/disable SF's vport during SF life cycle

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