From: Mohamad Haj Yahia Date: Thu, 11 Aug 2016 08:28:21 +0000 (+0300) Subject: net/mlx5: Add SRIOV VF max rate configuration support X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=bd77bf1cb595477528f06f5c52f913f70acd73bb;p=GitHub%2Fmoto-9609%2Fandroid_kernel_motorola_exynos9610.git net/mlx5: Add SRIOV VF max rate configuration support Implement the vf set rate ndo by modifying the TSAR vport rate limit. Signed-off-by: Mohamad Haj Yahia Signed-off-by: Saeed Mahameed Signed-off-by: Leon Romanovsky --- diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_main.c b/drivers/net/ethernet/mellanox/mlx5/core/en_main.c index 7eaf38020a8f..7f763d2f63bb 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/en_main.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/en_main.c @@ -2945,6 +2945,20 @@ static int mlx5e_set_vf_trust(struct net_device *dev, int vf, bool setting) return mlx5_eswitch_set_vport_trust(mdev->priv.eswitch, vf + 1, setting); } + +static int mlx5e_set_vf_rate(struct net_device *dev, int vf, int min_tx_rate, + int max_tx_rate) +{ + struct mlx5e_priv *priv = netdev_priv(dev); + struct mlx5_core_dev *mdev = priv->mdev; + + if (min_tx_rate) + return -EOPNOTSUPP; + + return mlx5_eswitch_set_vport_rate(mdev->priv.eswitch, vf + 1, + max_tx_rate); +} + static int mlx5_vport_link2ifla(u8 esw_link) { switch (esw_link) { @@ -3252,6 +3266,7 @@ static const struct net_device_ops mlx5e_netdev_ops_sriov = { .ndo_set_vf_vlan = mlx5e_set_vf_vlan, .ndo_set_vf_spoofchk = mlx5e_set_vf_spoofchk, .ndo_set_vf_trust = mlx5e_set_vf_trust, + .ndo_set_vf_rate = mlx5e_set_vf_rate, .ndo_get_vf_config = mlx5e_get_vf_config, .ndo_set_vf_link_state = mlx5e_set_vf_link_state, .ndo_get_vf_stats = mlx5e_get_vf_stats, diff --git a/drivers/net/ethernet/mellanox/mlx5/core/eswitch.c b/drivers/net/ethernet/mellanox/mlx5/core/eswitch.c index 2e11a94d8365..9ef01d1bea06 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/eswitch.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/eswitch.c @@ -1451,6 +1451,47 @@ static void esw_vport_disable_qos(struct mlx5_eswitch *esw, int vport_num) vport->qos.enabled = false; } +static int esw_vport_qos_config(struct mlx5_eswitch *esw, int vport_num, + u32 max_rate) +{ + u32 sched_ctx[MLX5_ST_SZ_DW(scheduling_context)] = {0}; + struct mlx5_vport *vport = &esw->vports[vport_num]; + struct mlx5_core_dev *dev = esw->dev; + void *vport_elem; + u32 bitmask = 0; + int err = 0; + + if (!MLX5_CAP_GEN(dev, qos) || !MLX5_CAP_QOS(dev, esw_scheduling)) + return -EOPNOTSUPP; + + if (!vport->qos.enabled) + return -EIO; + + MLX5_SET(scheduling_context, &sched_ctx, element_type, + SCHEDULING_CONTEXT_ELEMENT_TYPE_VPORT); + vport_elem = MLX5_ADDR_OF(scheduling_context, &sched_ctx, + element_attributes); + MLX5_SET(vport_element, vport_elem, vport_number, vport_num); + MLX5_SET(scheduling_context, &sched_ctx, parent_element_id, + esw->qos.root_tsar_id); + MLX5_SET(scheduling_context, &sched_ctx, max_average_bw, + max_rate); + bitmask |= MODIFY_SCHEDULING_ELEMENT_IN_MODIFY_BITMASK_MAX_AVERAGE_BW; + + err = mlx5_modify_scheduling_element_cmd(dev, + SCHEDULING_HIERARCHY_E_SWITCH, + &sched_ctx, + vport->qos.esw_tsar_ix, + bitmask); + if (err) { + esw_warn(esw->dev, "E-Switch modify TSAR vport element failed (vport=%d,err=%d)\n", + vport_num, err); + return err; + } + + return 0; +} + static void node_guid_gen_from_mac(u64 *node_guid, u8 mac[ETH_ALEN]) { ((u8 *)node_guid)[7] = mac[0]; @@ -1888,6 +1929,7 @@ int mlx5_eswitch_get_vport_config(struct mlx5_eswitch *esw, ivi->qos = evport->info.qos; ivi->spoofchk = evport->info.spoofchk; ivi->trusted = evport->info.trusted; + ivi->max_tx_rate = evport->info.max_rate; mutex_unlock(&esw->state_lock); return 0; @@ -1981,6 +2023,27 @@ int mlx5_eswitch_set_vport_trust(struct mlx5_eswitch *esw, return 0; } +int mlx5_eswitch_set_vport_rate(struct mlx5_eswitch *esw, + int vport, u32 max_rate) +{ + struct mlx5_vport *evport; + int err = 0; + + if (!ESW_ALLOWED(esw)) + return -EPERM; + if (!LEGAL_VPORT(esw, vport)) + return -EINVAL; + + mutex_lock(&esw->state_lock); + evport = &esw->vports[vport]; + err = esw_vport_qos_config(esw, vport, max_rate); + if (!err) + evport->info.max_rate = max_rate; + + mutex_unlock(&esw->state_lock); + return err; +} + int mlx5_eswitch_get_vport_stats(struct mlx5_eswitch *esw, int vport, struct ifla_vf_stats *vf_stats) diff --git a/drivers/net/ethernet/mellanox/mlx5/core/eswitch.h b/drivers/net/ethernet/mellanox/mlx5/core/eswitch.h index fb8de34b6baf..ddae90c1f15b 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/eswitch.h +++ b/drivers/net/ethernet/mellanox/mlx5/core/eswitch.h @@ -246,6 +246,8 @@ int mlx5_eswitch_set_vport_spoofchk(struct mlx5_eswitch *esw, int vport, bool spoofchk); int mlx5_eswitch_set_vport_trust(struct mlx5_eswitch *esw, int vport_num, bool setting); +int mlx5_eswitch_set_vport_rate(struct mlx5_eswitch *esw, + int vport, u32 max_rate); int mlx5_eswitch_get_vport_config(struct mlx5_eswitch *esw, int vport, struct ifla_vf_info *ivi); int mlx5_eswitch_get_vport_stats(struct mlx5_eswitch *esw,