common/mlx5: support general object KEK import

IMPORT_KEK object is used to wrap (encrypt) critical security
parameters, such as other keys and credentials, when those need
to be passed between the device and the software.

This patch add support of IMPORT_KEK object create operation.
Add reading of IMPORT_KEK support capability.
Add function to create general object type IMPORT_KEK, using DevX API.

Signed-off-by: Dekel Peled <dekelp@nvidia.com>
Acked-by: Matan Azrad <matan@nvidia.com>

diff --git a/drivers/common/mlx5/mlx5_devx_cmds.c b/drivers/common/mlx5/mlx5_devx_cmds.c
index a37abe2..16e3a01 100644 (file)
--- a/drivers/common/mlx5/mlx5_devx_cmds.c
+++ b/drivers/common/mlx5/mlx5_devx_cmds.c
@@ -752,6 +752,8 @@ mlx5_devx_cmd_query_hca_attr(void *ctx,
                                  MLX5_GENERAL_OBJ_TYPES_CAP_GENEVE_TLV_OPT);
        attr->dek = !!(general_obj_types_supported &
                       MLX5_GENERAL_OBJ_TYPES_CAP_DEK);
+       attr->import_kek = !!(general_obj_types_supported &
+                             MLX5_GENERAL_OBJ_TYPES_CAP_IMPORT_KEK);
        /* Add reading of other GENERAL_OBJ_TYPES_CAP bits above this line. */
        attr->log_max_cq = MLX5_GET(cmd_hca_cap, hcattr, log_max_cq);
        attr->log_max_qp = MLX5_GET(cmd_hca_cap, hcattr, log_max_qp);
@@ -2457,3 +2459,51 @@ mlx5_devx_cmd_create_dek_obj(void *ctx, struct mlx5_devx_dek_attr *attr)
        dek_obj->id = MLX5_GET(general_obj_out_cmd_hdr, out, obj_id);
        return dek_obj;
 }
+
+/**
+ * Create general object of type IMPORT_KEK using DevX API.
+ *
+ * @param[in] ctx
+ *   Context returned from mlx5 open_device() glue function.
+ * @param [in] attr
+ *   Pointer to IMPORT_KEK attributes structure.
+ *
+ * @return
+ *   The DevX object created, NULL otherwise and rte_errno is set.
+ */
+struct mlx5_devx_obj *
+mlx5_devx_cmd_create_import_kek_obj(void *ctx,
+                                   struct mlx5_devx_import_kek_attr *attr)
+{
+       uint32_t in[MLX5_ST_SZ_DW(create_import_kek_in)] = {0};
+       uint32_t out[MLX5_ST_SZ_DW(general_obj_out_cmd_hdr)] = {0};
+       struct mlx5_devx_obj *import_kek_obj = NULL;
+       void *ptr = NULL, *key_addr = NULL;
+
+       import_kek_obj = mlx5_malloc(MLX5_MEM_ZERO, sizeof(*import_kek_obj),
+                                    0, SOCKET_ID_ANY);
+       if (import_kek_obj == NULL) {
+               DRV_LOG(ERR, "Failed to allocate IMPORT_KEK object data");
+               rte_errno = ENOMEM;
+               return NULL;
+       }
+       ptr = MLX5_ADDR_OF(create_import_kek_in, in, hdr);
+       MLX5_SET(general_obj_in_cmd_hdr, ptr, opcode,
+                MLX5_CMD_OP_CREATE_GENERAL_OBJECT);
+       MLX5_SET(general_obj_in_cmd_hdr, ptr, obj_type,
+                MLX5_GENERAL_OBJ_TYPE_IMPORT_KEK);
+       ptr = MLX5_ADDR_OF(create_import_kek_in, in, import_kek);
+       MLX5_SET(import_kek, ptr, key_size, attr->key_size);
+       key_addr = MLX5_ADDR_OF(import_kek, ptr, key);
+       memcpy(key_addr, (void *)(attr->key), MLX5_CRYPTO_KEY_MAX_SIZE);
+       import_kek_obj->obj = mlx5_glue->devx_obj_create(ctx, in, sizeof(in),
+                                                        out, sizeof(out));
+       if (import_kek_obj->obj == NULL) {
+               rte_errno = errno;
+               DRV_LOG(ERR, "Failed to create IMPORT_KEK object using DevX.");
+               mlx5_free(import_kek_obj);
+               return NULL;
+       }
+       import_kek_obj->id = MLX5_GET(general_obj_out_cmd_hdr, out, obj_id);
+       return import_kek_obj;
+}

diff --git a/drivers/common/mlx5/mlx5_devx_cmds.h b/drivers/common/mlx5/mlx5_devx_cmds.h
index 14a1d6b..221fd54 100644 (file)
--- a/drivers/common/mlx5/mlx5_devx_cmds.h
+++ b/drivers/common/mlx5/mlx5_devx_cmds.h
@@ -141,6 +141,7 @@ struct mlx5_hca_attr {
        uint32_t crypto:1; /* Crypto engine is supported. */
        uint32_t aes_xts:1; /* AES-XTS crypto is supported. */
        uint32_t dek:1; /* General obj type DEK is supported. */
+       uint32_t import_kek:1; /* General obj type IMPORT_KEK supported. */
        uint32_t regexp_num_of_engines;
        uint32_t log_max_ft_sampler_num:8;
        uint32_t geneve_tlv_opt;
@@ -449,6 +450,13 @@ struct mlx5_devx_dek_attr {
        uint8_t key[MLX5_CRYPTO_KEY_MAX_SIZE];
 };
 
+struct mlx5_devx_import_kek_attr {
+       uint64_t modify_field_select;
+       uint32_t state:8;
+       uint32_t key_size:4;
+       uint8_t key[MLX5_CRYPTO_KEY_MAX_SIZE];
+};
+
 /* mlx5_devx_cmds.c */
 
 __rte_internal
@@ -605,4 +613,9 @@ __rte_internal
 struct mlx5_devx_obj *
 mlx5_devx_cmd_create_dek_obj(void *ctx, struct mlx5_devx_dek_attr *attr);
 
+__rte_internal
+struct mlx5_devx_obj *
+mlx5_devx_cmd_create_import_kek_obj(void *ctx,
+                                   struct mlx5_devx_import_kek_attr *attr);
+
 #endif /* RTE_PMD_MLX5_DEVX_CMDS_H_ */

diff --git a/drivers/common/mlx5/mlx5_prm.h b/drivers/common/mlx5/mlx5_prm.h
index 2bca175..50c8664 100644 (file)
--- a/drivers/common/mlx5/mlx5_prm.h
+++ b/drivers/common/mlx5/mlx5_prm.h
@@ -1119,6 +1119,8 @@ enum {
                        (1ULL << MLX5_GENERAL_OBJ_TYPE_GENEVE_TLV_OPT)
 #define MLX5_GENERAL_OBJ_TYPES_CAP_DEK \
                        (1ULL << MLX5_GENERAL_OBJ_TYPE_DEK)
+#define MLX5_GENERAL_OBJ_TYPES_CAP_IMPORT_KEK \
+                       (1ULL << MLX5_GENERAL_OBJ_TYPE_IMPORT_KEK)
 
 enum {
        MLX5_HCA_CAP_OPMOD_GET_MAX   = 0,
@@ -2412,6 +2414,7 @@ enum {
        MLX5_GENERAL_OBJ_TYPE_DEK = 0x000c,
        MLX5_GENERAL_OBJ_TYPE_VIRTQ = 0x000d,
        MLX5_GENERAL_OBJ_TYPE_VIRTIO_Q_COUNTERS = 0x001c,
+       MLX5_GENERAL_OBJ_TYPE_IMPORT_KEK = 0x001d,
        MLX5_GENERAL_OBJ_TYPE_FLEX_PARSE_GRAPH = 0x0022,
        MLX5_GENERAL_OBJ_TYPE_FLOW_METER_ASO = 0x0024,
        MLX5_GENERAL_OBJ_TYPE_FLOW_HIT_ASO = 0x0025,
@@ -2509,6 +2512,21 @@ struct mlx5_ifc_create_dek_in_bits {
        struct mlx5_ifc_dek_bits dek;
 };
 
+struct mlx5_ifc_import_kek_bits {
+       u8 modify_field_select[0x40];
+       u8 state[0x8];
+       u8 reserved_at_48[0xc];
+       u8 key_size[0x4];
+       u8 reserved_at_58[0x1a8];
+       u8 key[0x400];
+       u8 reserved_at_600[0x200];
+};
+
+struct mlx5_ifc_create_import_kek_in_bits {
+       struct mlx5_ifc_general_obj_in_cmd_hdr_bits hdr;
+       struct mlx5_ifc_import_kek_bits import_kek;
+};
+
 enum {
        MLX5_VIRTQ_STATE_INIT = 0,
        MLX5_VIRTQ_STATE_RDY = 1,

diff --git a/drivers/common/mlx5/version.map b/drivers/common/mlx5/version.map
index 42bb985..60bff5f 100644 (file)
--- a/drivers/common/mlx5/version.map
+++ b/drivers/common/mlx5/version.map
@@ -21,6 +21,7 @@ INTERNAL {
        mlx5_devx_cmd_create_flow_hit_aso_obj;
        mlx5_devx_cmd_create_flow_meter_aso_obj;
        mlx5_devx_cmd_create_geneve_tlv_option;
+       mlx5_devx_cmd_create_import_kek_obj;
        mlx5_devx_cmd_create_qp;
        mlx5_devx_cmd_create_rq;
        mlx5_devx_cmd_create_rqt;