On Mon, Apr 18, 2016 at 7:25 PM, Majd Dibbiny <majd@xxxxxxxxxxxx> wrote:
> From: Bodong Wang <bodong@xxxxxxxxxxxx>
>
> LSO capabilities include the max LSO packet size in byte, and what QP
> types the hardware supports.
size in bytes
>
> Relevant verbs to report LSO caps from kernel to user space is updated
> accordingly.
verbs ... is --> verbs ... are
>
> Signed-off-by: Bodong Wang <bodong@xxxxxxxxxxxx>
> Signed-off-by: Majd Dibbiny <majd@xxxxxxxxxxxx>
> Signed-off-by: Matan Barak <matanb@xxxxxxxxxxxx>
> ---
> drivers/infiniband/core/uverbs_cmd.c | 7 +++++++
> include/rdma/ib_verbs.h | 6 ++++++
> include/uapi/rdma/ib_user_verbs.h | 6 ++++++
> 3 files changed, 19 insertions(+)
>
> diff --git a/drivers/infiniband/core/uverbs_cmd.c b/drivers/infiniband/core/uverbs_cmd.c
> index 6fdc7ec..b0fb94b 100644
> --- a/drivers/infiniband/core/uverbs_cmd.c
> +++ b/drivers/infiniband/core/uverbs_cmd.c
> @@ -3655,6 +3655,13 @@ int ib_uverbs_ex_query_device(struct ib_uverbs_file *file,
> resp.hca_core_clock = attr.hca_core_clock;
> resp.response_length += sizeof(resp.hca_core_clock);
>
> + if (ucore->outlen < resp.response_length + sizeof(resp.lso_caps))
> + goto end;
> +
> + resp.lso_caps.max_lso = attr.lso_caps.max_lso;
> + resp.lso_caps.supported_qpts = attr.lso_caps.supported_qpts;
> + resp.response_length += sizeof(resp.lso_caps);
> +
> end:
> err = ib_copy_to_udata(ucore, &resp, resp.response_length);
> return err;
> diff --git a/include/rdma/ib_verbs.h b/include/rdma/ib_verbs.h
> index fb2cef4..d5a466f 100644
> --- a/include/rdma/ib_verbs.h
> +++ b/include/rdma/ib_verbs.h
> @@ -271,6 +271,11 @@ struct ib_cq_init_attr {
> u32 flags;
> };
>
> +struct ib_lso_caps {
> + u32 max_lso;
> + u32 supported_qpts; /* Use enum ib_qp_type */
> +};
> +
> struct ib_device_attr {
> u64 fw_ver;
> __be64 sys_image_guid;
> @@ -317,6 +322,7 @@ struct ib_device_attr {
> struct ib_odp_caps odp_caps;
> uint64_t timestamp_mask;
> uint64_t hca_core_clock; /* in KHZ */
> + struct ib_lso_caps lso_caps;
> };
>
> enum ib_mtu {
> diff --git a/include/uapi/rdma/ib_user_verbs.h b/include/uapi/rdma/ib_user_verbs.h
> index 8126c14..fa039f5 100644
> --- a/include/uapi/rdma/ib_user_verbs.h
> +++ b/include/uapi/rdma/ib_user_verbs.h
> @@ -219,6 +219,11 @@ struct ib_uverbs_odp_caps {
> __u32 reserved;
> };
>
> +struct ib_uverbs_lso_caps {
> + __u32 max_lso;
> + __u32 supported_qpts; /* Use enum ib_qp_type */
> +};
> +
> struct ib_uverbs_ex_query_device_resp {
> struct ib_uverbs_query_device_resp base;
> __u32 comp_mask;
> @@ -226,6 +231,7 @@ struct ib_uverbs_ex_query_device_resp {
> struct ib_uverbs_odp_caps odp_caps;
> __u64 timestamp_mask;
> __u64 hca_core_clock; /* in KHZ */
> + struct ib_uverbs_lso_caps lso_caps;
> };
--
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