From: Bodong Wang <bodong@xxxxxxxxxxxx>
LSO capabilities include the max LSO packet size in bytes and which QP
types does the hardware support.
Relevant verbs to report LSO capabilities from kernel to user space are
updated accordingly.
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;
};
struct ib_uverbs_query_port {
--
2.5.0
--
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