diff options
| author | Matan Barak <matanb@mellanox.com> | 2018-03-28 08:27:51 +0200 |
|---|---|---|
| committer | Jason Gunthorpe <jgg@mellanox.com> | 2018-04-04 20:06:27 +0200 |
| commit | 349705c1936269aa6e5f923a0bc663e1addf288e (patch) | |
| tree | 94bd1a0ac8688683bb291e197da14f35ad19216d /drivers/infiniband | |
| parent | IB/mlx5: Add implementation for create and destroy action_xfrm (diff) | |
| download | linux-349705c1936269aa6e5f923a0bc663e1addf288e.tar.xz linux-349705c1936269aa6e5f923a0bc663e1addf288e.zip | |
IB/mlx5: Add modify_flow_action_esp verb
Adding implementation in mlx5 driver to modify action_xfrm object. This
merely call the accel layer. Currently a user can modify only the
ESN parameters.
Reviewed-by: Yishai Hadas <yishaih@mellanox.com>
Signed-off-by: Matan Barak <matanb@mellanox.com>
Signed-off-by: Aviad Yehezkel <aviadye@mellanox.com>
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Diffstat (limited to 'drivers/infiniband')
| -rw-r--r-- | drivers/infiniband/hw/mlx5/main.c | 49 |
1 files changed, 49 insertions, 0 deletions
diff --git a/drivers/infiniband/hw/mlx5/main.c b/drivers/infiniband/hw/mlx5/main.c index 8b16a42f2086..bc46589a904d 100644 --- a/drivers/infiniband/hw/mlx5/main.c +++ b/drivers/infiniband/hw/mlx5/main.c @@ -3201,6 +3201,54 @@ err_parse: return ERR_PTR(err); } +static int +mlx5_ib_modify_flow_action_esp(struct ib_flow_action *action, + const struct ib_flow_action_attrs_esp *attr, + struct uverbs_attr_bundle *attrs) +{ + struct mlx5_ib_flow_action *maction = to_mflow_act(action); + struct mlx5_accel_esp_xfrm_attrs accel_attrs; + int err = 0; + + if (attr->keymat || attr->replay || attr->encap || + attr->spi || attr->seq || attr->tfc_pad || + attr->hard_limit_pkts || + (attr->flags & ~(IB_FLOW_ACTION_ESP_FLAGS_ESN_TRIGGERED | + IB_FLOW_ACTION_ESP_FLAGS_MOD_ESP_ATTRS | + IB_UVERBS_FLOW_ACTION_ESP_FLAGS_ESN_NEW_WINDOW))) + return -EOPNOTSUPP; + + /* Only the ESN value or the MLX5_ACCEL_ESP_FLAGS_ESN_STATE_OVERLAP can + * be modified. + */ + if (!(maction->esp_aes_gcm.ib_flags & + IB_FLOW_ACTION_ESP_FLAGS_ESN_TRIGGERED) && + attr->flags & (IB_FLOW_ACTION_ESP_FLAGS_ESN_TRIGGERED | + IB_UVERBS_FLOW_ACTION_ESP_FLAGS_ESN_NEW_WINDOW)) + return -EINVAL; + + memcpy(&accel_attrs, &maction->esp_aes_gcm.ctx->attrs, + sizeof(accel_attrs)); + + accel_attrs.esn = attr->esn; + if (attr->flags & IB_UVERBS_FLOW_ACTION_ESP_FLAGS_ESN_NEW_WINDOW) + accel_attrs.flags |= MLX5_ACCEL_ESP_FLAGS_ESN_STATE_OVERLAP; + else + accel_attrs.flags &= ~MLX5_ACCEL_ESP_FLAGS_ESN_STATE_OVERLAP; + + err = mlx5_accel_esp_modify_xfrm(maction->esp_aes_gcm.ctx, + &accel_attrs); + if (err) + return err; + + maction->esp_aes_gcm.ib_flags &= + ~IB_UVERBS_FLOW_ACTION_ESP_FLAGS_ESN_NEW_WINDOW; + maction->esp_aes_gcm.ib_flags |= + attr->flags & IB_UVERBS_FLOW_ACTION_ESP_FLAGS_ESN_NEW_WINDOW; + + return 0; +} + static int mlx5_ib_destroy_flow_action(struct ib_flow_action *action) { struct mlx5_ib_flow_action *maction = to_mflow_act(action); @@ -4927,6 +4975,7 @@ int mlx5_ib_stage_caps_init(struct mlx5_ib_dev *dev) (1ull << IB_USER_VERBS_EX_CMD_DESTROY_FLOW); dev->ib_dev.create_flow_action_esp = mlx5_ib_create_flow_action_esp; dev->ib_dev.destroy_flow_action = mlx5_ib_destroy_flow_action; + dev->ib_dev.modify_flow_action_esp = mlx5_ib_modify_flow_action_esp; dev->ib_dev.driver_id = RDMA_DRIVER_MLX5; err = init_node_data(dev); |