@@ -364,6 +364,14 @@ PCI devices/SF.
mlx5 driver support devlink port function attr mechanism to setup RoCE
capability. (refer to Documentation/networking/devlink/devlink-port.rst)
+migratable capability setup
+---------------------------
+User who wants mlx5 PCI VFs to be able to perform live migration need to
+explicitly enable the VF migratable capability.
+
+mlx5 driver support devlink port function attr mechanism to setup migratable
+capability. (refer to Documentation/networking/devlink/devlink-port.rst)
+
SF state setup
--------------
To use the SF, the user must activate the SF using the SF function state
@@ -316,6 +316,8 @@ static const struct devlink_ops mlx5_devlink_ops = {
.rate_leaf_parent_set = mlx5_esw_devlink_rate_parent_set,
.port_fn_roce_get = mlx5_devlink_port_fn_roce_get,
.port_fn_roce_set = mlx5_devlink_port_fn_roce_set,
+ .port_fn_migratable_get = mlx5_devlink_port_fn_migratable_get,
+ .port_fn_migratable_set = mlx5_devlink_port_fn_migratable_set,
#endif
#ifdef CONFIG_MLX5_SF_MANAGER
.port_new = mlx5_devlink_sf_port_new,
@@ -794,6 +794,14 @@ static int mlx5_esw_vport_caps_get(struct mlx5_eswitch *esw, struct mlx5_vport *
hca_caps = MLX5_ADDR_OF(query_hca_cap_out, query_ctx, capability);
vport->info.roce_enabled = MLX5_GET(cmd_hca_cap, hca_caps, roce);
+ memset(query_ctx, 0, query_out_sz);
+ err = mlx5_vport_get_other_func_cap(esw->dev, vport->vport, query_ctx,
+ MLX5_CAP_GENERAL_2);
+ if (err)
+ goto out_free;
+
+ hca_caps = MLX5_ADDR_OF(query_hca_cap_out, query_ctx, capability);
+ vport->info.mig_enabled = MLX5_GET(cmd_hca_cap_2, hca_caps, migratable);
out_free:
kfree(query_ctx);
return err;
@@ -154,6 +154,7 @@ struct mlx5_vport_info {
u8 spoofchk: 1;
u8 trusted: 1;
u8 roce_enabled: 1;
+ u8 mig_enabled: 1;
};
/* Vport context events */
@@ -513,6 +514,10 @@ int mlx5_devlink_port_fn_roce_get(struct devlink_port *port, bool *is_enabled,
struct netlink_ext_ack *extack);
int mlx5_devlink_port_fn_roce_set(struct devlink_port *port, bool enable,
struct netlink_ext_ack *extack);
+int mlx5_devlink_port_fn_migratable_get(struct devlink_port *port, bool *is_enabled,
+ struct netlink_ext_ack *extack);
+int mlx5_devlink_port_fn_migratable_set(struct devlink_port *port, bool enable,
+ struct netlink_ext_ack *extack);
void *mlx5_eswitch_get_uplink_priv(struct mlx5_eswitch *esw, u8 rep_type);
int mlx5_eswitch_add_vlan_action(struct mlx5_eswitch *esw,
@@ -4038,6 +4038,107 @@ mlx5_devlink_port_fn_get_vport(struct devlink_port *port, struct mlx5_eswitch *e
return mlx5_eswitch_get_vport(esw, vport_num);
}
+int mlx5_devlink_port_fn_migratable_get(struct devlink_port *port, bool *is_enabled,
+ struct netlink_ext_ack *extack)
+{
+ struct mlx5_eswitch *esw;
+ struct mlx5_vport *vport;
+ int err = -EOPNOTSUPP;
+
+ esw = mlx5_devlink_eswitch_get(port->devlink);
+ if (IS_ERR(esw))
+ return PTR_ERR(esw);
+
+ if (!MLX5_CAP_GEN(esw->dev, migration)) {
+ NL_SET_ERR_MSG_MOD(extack, "Device doesn't support migration");
+ return err;
+ }
+
+ vport = mlx5_devlink_port_fn_get_vport(port, esw);
+ if (IS_ERR(vport)) {
+ NL_SET_ERR_MSG_MOD(extack, "Invalid port");
+ return PTR_ERR(vport);
+ }
+
+ mutex_lock(&esw->state_lock);
+ if (vport->enabled) {
+ *is_enabled = vport->info.mig_enabled;
+ err = 0;
+ }
+ mutex_unlock(&esw->state_lock);
+ return err;
+}
+
+int mlx5_devlink_port_fn_migratable_set(struct devlink_port *port, bool enable,
+ struct netlink_ext_ack *extack)
+{
+ int query_out_sz = MLX5_ST_SZ_BYTES(query_hca_cap_out);
+ struct mlx5_eswitch *esw;
+ struct mlx5_vport *vport;
+ void *query_ctx;
+ void *hca_caps;
+ int err = -EOPNOTSUPP;
+
+ esw = mlx5_devlink_eswitch_get(port->devlink);
+ if (IS_ERR(esw))
+ return PTR_ERR(esw);
+
+ if (!MLX5_CAP_GEN(esw->dev, migration)) {
+ NL_SET_ERR_MSG_MOD(extack, "Device doesn't support migration");
+ return err;
+ }
+
+ vport = mlx5_devlink_port_fn_get_vport(port, esw);
+ if (IS_ERR(vport)) {
+ NL_SET_ERR_MSG_MOD(extack, "Invalid port");
+ return PTR_ERR(vport);
+ }
+
+ mutex_lock(&esw->state_lock);
+ if (!vport->enabled) {
+ NL_SET_ERR_MSG_MOD(extack, "Eswitch vport is disabled");
+ goto out;
+ }
+
+ if (vport->info.mig_enabled == enable) {
+ err = 0;
+ goto out;
+ }
+
+ query_ctx = kzalloc(query_out_sz, GFP_KERNEL);
+ if (!query_ctx) {
+ err = -ENOMEM;
+ goto out;
+ }
+
+ err = mlx5_vport_get_other_func_cap(esw->dev, vport->vport, query_ctx,
+ MLX5_CAP_GENERAL_2);
+ if (err) {
+ NL_SET_ERR_MSG_MOD(extack, "Failed getting HCA caps");
+ goto out_free;
+ }
+
+ hca_caps = MLX5_ADDR_OF(query_hca_cap_out, query_ctx, capability);
+ memcpy(hca_caps, MLX5_ADDR_OF(query_hca_cap_out, query_ctx, capability),
+ MLX5_UN_SZ_BYTES(hca_cap_union));
+ MLX5_SET(cmd_hca_cap_2, hca_caps, migratable, 1);
+
+ err = mlx5_vport_set_other_func_cap(esw->dev, hca_caps, vport->vport,
+ MLX5_SET_HCA_CAP_OP_MOD_GENERAL_DEVICE2);
+ if (err) {
+ NL_SET_ERR_MSG_MOD(extack, "Failed setting HCA migratable cap");
+ goto out_free;
+ }
+
+ vport->info.mig_enabled = enable;
+
+out_free:
+ kfree(query_ctx);
+out:
+ mutex_unlock(&esw->state_lock);
+ return err;
+}
+
int mlx5_devlink_port_fn_roce_get(struct devlink_port *port, bool *is_enabled,
struct netlink_ext_ack *extack)
{