[dpdk-dev] [PATCH v1 2/3] net/mlx5: add devx functions to glue
Shahaf Shuler
shahafs at mellanox.com
Thu Dec 27 09:12:58 CET 2018
Tuesday, December 25, 2018 4:39 PM, Mordechay Haimovsky:
> Subject: [dpdk-dev] [PATCH v1 2/3] net/mlx5: add devx functions to glue
>
> This patch adds glue functions for operations:
> - dv_open_device.
> - devx object create, destroy, query and modify.
> - devx general command
> The new operations depend on HAVE_IBV_DEVX_OBJ.
>
> Signed-off-by: Moti Haimovsky <motih at mellanox.com>
Acked-by: Shahaf Shuler <shahafs at mellanox.com>
Note in general you need also the bump the LIB_GLUE version, but there is a commit which do it already: https://patches.dpdk.org/patch/49277/
Please make sure you rebase on top of it.
> ---
> drivers/net/mlx5/Makefile | 5 +++
> drivers/net/mlx5/meson.build | 2 +
> drivers/net/mlx5/mlx5_glue.c | 99
> ++++++++++++++++++++++++++++++++++++++++++++
> drivers/net/mlx5/mlx5_glue.h | 19 +++++++++
> 4 files changed, 125 insertions(+)
>
> diff --git a/drivers/net/mlx5/Makefile b/drivers/net/mlx5/Makefile index
> 895cdfe..58e2d15 100644
> --- a/drivers/net/mlx5/Makefile
> +++ b/drivers/net/mlx5/Makefile
> @@ -148,6 +148,11 @@ mlx5_autoconf.h.new: $(RTE_SDK)/buildtools/auto-
> config-h.sh
> func mlx5dv_create_flow_action_packet_reformat \
> $(AUTOCONF_OUTPUT)
> $Q sh -- '$<' '$@' \
> + HAVE_IBV_DEVX_OBJ \
> + infiniband/mlx5dv.h \
> + func mlx5dv_devx_obj_create \
> + $(AUTOCONF_OUTPUT)
> + $Q sh -- '$<' '$@' \
> HAVE_ETHTOOL_LINK_MODE_25G \
> /usr/include/linux/ethtool.h \
> enum ETHTOOL_LINK_MODE_25000baseCR_Full_BIT \ diff --
> git a/drivers/net/mlx5/meson.build b/drivers/net/mlx5/meson.build index
> 28938db..e323c3a 100644
> --- a/drivers/net/mlx5/meson.build
> +++ b/drivers/net/mlx5/meson.build
> @@ -104,6 +104,8 @@ if build
> 'IBV_FLOW_SPEC_MPLS' ],
> [ 'HAVE_IBV_WQ_FLAG_RX_END_PADDING',
> 'infiniband/verbs.h',
> 'IBV_WQ_FLAG_RX_END_PADDING' ],
> + [ 'HAVE_IBV_DEVX_OBJ', 'infiniband/mlx5dv.h',
> + 'mlx5dv_devx_obj_create' ],
> [ 'HAVE_SUPPORTED_40000baseKR4_Full', 'linux/ethtool.h',
> 'SUPPORTED_40000baseKR4_Full' ],
> [ 'HAVE_SUPPORTED_40000baseCR4_Full', 'linux/ethtool.h',
> diff --git a/drivers/net/mlx5/mlx5_glue.c b/drivers/net/mlx5/mlx5_glue.c index
> dd10ad6..7d3d9d3 100644
> --- a/drivers/net/mlx5/mlx5_glue.c
> +++ b/drivers/net/mlx5/mlx5_glue.c
> @@ -479,6 +479,99 @@
> #endif
> }
>
> +static struct ibv_context *
> +mlx5_glue_dv_open_device(struct ibv_device *device) { #ifdef
> +HAVE_IBV_DEVX_OBJ
> + return mlx5dv_open_device(device,
> + &(struct mlx5dv_context_attr){
> + .flags =
> MLX5DV_CONTEXT_FLAGS_DEVX,
> + });
> +#else
> + (void)device;
> + return NULL;
> +#endif
> +}
> +
> +static struct mlx5dv_devx_obj *
> +mlx5_glue_devx_obj_create(struct ibv_context *ctx,
> + const void *in, size_t inlen,
> + void *out, size_t outlen)
> +{
> +#ifdef HAVE_IBV_DEVX_OBJ
> + return mlx5dv_devx_obj_create(ctx, in, inlen, out, outlen); #else
> + (void)ctx;
> + (void)in;
> + (void)inlen;
> + (void)out;
> + (void)outlen;
> + return NULL;
> +#endif
> +}
> +
> +static int
> +mlx5_glue_devx_obj_destroy(struct mlx5dv_devx_obj *obj) { #ifdef
> +HAVE_IBV_DEVX_OBJ
> + return mlx5dv_devx_obj_destroy(obj);
> +#else
> + (void)obj;
> + return -ENOTSUP;
> +#endif
> +}
> +
> +static int
> +mlx5_glue_devx_obj_query(struct mlx5dv_devx_obj *obj,
> + const void *in, size_t inlen,
> + void *out, size_t outlen)
> +{
> +#ifdef HAVE_IBV_DEVX_OBJ
> + return mlx5dv_devx_obj_query(obj, in, inlen, out, outlen); #else
> + (void)obj;
> + (void)in;
> + (void)inlen;
> + (void)out;
> + (void)outlen;
> + return -ENOTSUP;
> +#endif
> +}
> +
> +static int
> +mlx5_glue_devx_obj_modify(struct mlx5dv_devx_obj *obj,
> + const void *in, size_t inlen,
> + void *out, size_t outlen)
> +{
> +#ifdef HAVE_IBV_DEVX_OBJ
> + return mlx5dv_devx_obj_modify(obj, in, inlen, out, outlen); #else
> + (void)obj;
> + (void)in;
> + (void)inlen;
> + (void)out;
> + (void)outlen;
> + return -ENOTSUP;
> +#endif
> +}
> +
> +static int
> +mlx5_glue_devx_general_cmd(struct ibv_context *ctx,
> + const void *in, size_t inlen,
> + void *out, size_t outlen)
> +{
> +#ifdef HAVE_IBV_DEVX_OBJ
> + return mlx5dv_devx_general_cmd(ctx, in, inlen, out, outlen); #else
> + (void)ctx;
> + (void)in;
> + (void)inlen;
> + (void)out;
> + (void)outlen;
> + return -ENOTSUP;
> +#endif
> +}
> +
> alignas(RTE_CACHE_LINE_SIZE)
> const struct mlx5_glue *mlx5_glue = &(const struct mlx5_glue){
> .version = MLX5_GLUE_VERSION,
> @@ -535,4 +628,10 @@
> .dv_create_flow = mlx5_glue_dv_create_flow,
> .dv_create_flow_action_packet_reformat =
> mlx5_glue_dv_create_flow_action_packet_reformat,
> + .dv_open_device = mlx5_glue_dv_open_device,
> + .devx_obj_create = mlx5_glue_devx_obj_create,
> + .devx_obj_destroy = mlx5_glue_devx_obj_destroy,
> + .devx_obj_query = mlx5_glue_devx_obj_query,
> + .devx_obj_modify = mlx5_glue_devx_obj_modify,
> + .devx_general_cmd = mlx5_glue_devx_general_cmd,
> };
> diff --git a/drivers/net/mlx5/mlx5_glue.h b/drivers/net/mlx5/mlx5_glue.h
> index 2d92ba8..a6cd2cd 100644
> --- a/drivers/net/mlx5/mlx5_glue.h
> +++ b/drivers/net/mlx5/mlx5_glue.h
> @@ -55,6 +55,10 @@
> enum mlx5dv_flow_table_type { flow_table_type = 0, }; #endif
>
> +#ifndef HAVE_IBV_DEVX_OBJ
> +struct mlx5dv_devx_obj;
> +#endif
> +
> /* LIB_GLUE_VERSION must be updated every time this structure is modified.
> */ struct mlx5_glue {
> const char *version;
> @@ -164,6 +168,21 @@ struct mlx5_glue {
> void *data,
> enum mlx5dv_flow_action_packet_reformat_type
> reformat_type,
> enum mlx5dv_flow_table_type ft_type);
> + struct ibv_context *(*dv_open_device)(struct ibv_device *device);
> + struct mlx5dv_devx_obj *(*devx_obj_create)
> + (struct ibv_context *ctx,
> + const void *in, size_t inlen,
> + void *out, size_t outlen);
> + int (*devx_obj_destroy)(struct mlx5dv_devx_obj *obj);
> + int (*devx_obj_query)(struct mlx5dv_devx_obj *obj,
> + const void *in, size_t inlen,
> + void *out, size_t outlen);
> + int (*devx_obj_modify)(struct mlx5dv_devx_obj *obj,
> + const void *in, size_t inlen,
> + void *out, size_t outlen);
> + int (*devx_general_cmd)(struct ibv_context *context,
> + const void *in, size_t inlen,
> + void *out, size_t outlen);
> };
>
> const struct mlx5_glue *mlx5_glue;
> --
> 1.8.3.1
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