Add support for raw completion timestamp through ibv_poll_cq_ex.
Signed-off-by: Matan Barak <[email protected]>
---
include/infiniband/verbs.h | 7 ++++++-
man/ibv_poll_cq_ex.3 | 2 ++
2 files changed, 8 insertions(+), 1 deletion(-)
diff --git a/include/infiniband/verbs.h b/include/infiniband/verbs.h
index f80126a..3d66726 100644
--- a/include/infiniband/verbs.h
+++ b/include/infiniband/verbs.h
@@ -391,6 +391,7 @@ enum ibv_wc_flags_ex {
IBV_WC_EX_WITH_SLID = 1 << 7,
IBV_WC_EX_WITH_SL = 1 << 8,
IBV_WC_EX_WITH_DLID_PATH_BITS = 1 << 9,
+ IBV_WC_EX_WITH_COMPLETION_TIMESTAMP = 1 << 10,
};
enum {
@@ -409,6 +410,10 @@ enum {
};
/* fields order in wc_ex
+ * // Raw timestamp of completion. A raw timestamp is implementation
+ * // defined and can not be relied upon to have any ordering value
+ * // between more than one HCA or driver.
+ * uint64_t completion_timestamp;
* uint32_t byte_len,
* uint32_t imm_data; // in network byte order
* uint32_t qp_num;
@@ -420,7 +425,7 @@ enum {
*/
enum {
- IBV_WC_EX_WITH_64BIT_FIELDS = 0
+ IBV_WC_EX_WITH_64BIT_FIELDS = IBV_WC_EX_WITH_COMPLETION_TIMESTAMP
};
enum {
diff --git a/man/ibv_poll_cq_ex.3 b/man/ibv_poll_cq_ex.3
index 8f336bc..3eb9bc0 100644
--- a/man/ibv_poll_cq_ex.3
+++ b/man/ibv_poll_cq_ex.3
@@ -54,12 +54,14 @@ IBV_WC_EX_WITH_PKEY_INDEX = 1 << 6, /* The
returned wc_ex contain
IBV_WC_EX_WITH_SLID = 1 << 7, /* The returned wc_ex
contains slid field */
IBV_WC_EX_WITH_SL = 1 << 8, /* The returned wc_ex
contains sl field */
IBV_WC_EX_WITH_DLID_PATH_BITS = 1 << 9, /* The returned wc_ex
contains dlid_path_bits field */
+IBV_WC_EX_WITH_COMPLETION_TIMESTAMP = 1 << 10, /* The returned wc_ex
contains completion_timestmap field */
.in -8
};
.fi
wc_flags describes which of the fields in buffer[0] have a valid value. The
order of these fields and sizes are always the following:
.nf
+uint64_t completion_timestamp; /* Raw timestamp of completion.
Implementation defined. Can't be relied upon to have any ordering value between
more than one driver/hca */
uint32_t byte_len,
uint32_t imm_data; /* in network byte order */
uint32_t qp_num;
--
2.1.0
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