From: Bodong Wang <bodong@xxxxxxxxxxxx>
- TX/RX checksum offload capabilities are now reporting through
a new member "csum_cap" inside ib_device_attr.
- The capabilities cover IP_HDR and TCP_UDP.
Signed-off-by: Bodong Wang <bodong@xxxxxxxxxxxx>
Signed-off-by: Amir Vadai <amirv@xxxxxxxxxxxx>
---
drivers/infiniband/core/uverbs_cmd.c | 6 ++++++
include/rdma/ib_verbs.h | 8 ++++++++
include/uapi/rdma/ib_user_verbs.h | 2 ++
3 files changed, 16 insertions(+)
diff --git a/drivers/infiniband/core/uverbs_cmd.c b/drivers/infiniband/core/uverbs_cmd.c
index bbb02ff..c3d7c54 100644
--- a/drivers/infiniband/core/uverbs_cmd.c
+++ b/drivers/infiniband/core/uverbs_cmd.c
@@ -3435,6 +3435,12 @@ int ib_uverbs_ex_query_device(struct ib_uverbs_file *file,
copy_query_dev_fields(file, &resp.base, &attr);
resp.comp_mask = 0;
+ if (ucore->outlen < resp.response_length + sizeof(resp.csum_caps))
+ goto end;
+
+ resp.csum_caps = attr.csum_caps;
+ resp.response_length += sizeof(resp.csum_caps);
+
if (ucore->outlen < resp.response_length + sizeof(resp.odp_caps))
goto end;
diff --git a/include/rdma/ib_verbs.h b/include/rdma/ib_verbs.h
index 0940051..582483e 100644
--- a/include/rdma/ib_verbs.h
+++ b/include/rdma/ib_verbs.h
@@ -190,6 +190,13 @@ struct ib_cq_init_attr {
u32 flags;
};
+enum ib_csum_cap_flags {
+ IB_CSUM_RX_TCP_UDP = 1 << 0,
+ IB_CSUM_RX_IP_HDR = 1 << 1,
+ IB_CSUM_TX_TCP_UDP = 1 << 2,
+ IB_CSUM_TX_IP_HDR = 1 << 3
+};
+
struct ib_device_attr {
u64 fw_ver;
__be64 sys_image_guid;
@@ -236,6 +243,7 @@ struct ib_device_attr {
struct ib_odp_caps odp_caps;
uint64_t timestamp_mask;
uint64_t hca_core_clock; /* in KHZ */
+ u32 csum_caps;
};
enum ib_mtu {
diff --git a/include/uapi/rdma/ib_user_verbs.h b/include/uapi/rdma/ib_user_verbs.h
index 978841e..5eb7de1 100644
--- a/include/uapi/rdma/ib_user_verbs.h
+++ b/include/uapi/rdma/ib_user_verbs.h
@@ -205,6 +205,7 @@ struct ib_uverbs_query_device_resp {
struct ib_uverbs_ex_query_device {
__u32 comp_mask;
+ __u32 csum_caps;
__u32 reserved;
};
@@ -221,6 +222,7 @@ struct ib_uverbs_odp_caps {
struct ib_uverbs_ex_query_device_resp {
struct ib_uverbs_query_device_resp base;
__u32 comp_mask;
+ __u32 csum_caps;
__u32 response_length;
struct ib_uverbs_odp_caps odp_caps;
__u64 timestamp_mask;
--
2.4.3.413.ga5fe668
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