From: Artemy Kovalyov <artemyko@xxxxxxxxxxxx>
Each steering flow may be marked with a tag which exposed in the
completion. Extend the poll_cq_ex mechanism with read_flow_tag callback
which reads the flow tag from the work completion.
Signed-off-by: Moses Reuben <mosesr@xxxxxxxxxxxx>
Signed-off-by: Artemy Kovalyov <artemyko@xxxxxxxxxxxx>
Reviewed-by: Maor Gottlieb <maorg@xxxxxxxxxxxx>
Reviewed-by: Yishai Hadas <yishaih@xxxxxxxxxxxx>
---
libibverbs/man/ibv_create_cq_ex.3 | 4 ++++
libibverbs/verbs.h | 10 +++++++++-
2 files changed, 13 insertions(+), 1 deletion(-)
diff --git a/libibverbs/man/ibv_create_cq_ex.3 b/libibverbs/man/ibv_create_cq_ex.3
index 020bbb4..7dfbef2 100644
--- a/libibverbs/man/ibv_create_cq_ex.3
+++ b/libibverbs/man/ibv_create_cq_ex.3
@@ -42,6 +42,7 @@ enum ibv_wc_flags_ex {
IBV_WC_EX_WITH_DLID_PATH_BITS = 1 << 6, /* Require dlid path bits in WC */
IBV_WC_EX_WITH_COMPLETION_TIMESTAMP = 1 << 7, /* Require completion timestamp in WC /*
IBV_WC_EX_WITH_CVLAN = 1 << 8, /* Require VLAN info in WC */
+ IBV_WC_EX_WITH_FLOW_TAG = 1 << 9, /* Require flow tag in WC */
};
enum ibv_cq_init_attr_mask {
@@ -133,6 +134,9 @@ Below members and functions are used in order to poll the current completion. Th
.BI "uint16_t ibv_wc_read_cvlan(struct ibv_cq_ex " "*cq"); \c
Get the CVLAN field from the current completion.
+.BI "uint32_t ibv_wc_read_flow_tag(struct ibv_cq_ex " "*cq"); \c
+ Get flow tag from the current completion.
+
.SH "RETURN VALUE"
.B ibv_create_cq_ex()
returns a pointer to the CQ, or NULL if the request fails.
diff --git a/libibverbs/verbs.h b/libibverbs/verbs.h
index 5a4dcbc..b27dfd1 100644
--- a/libibverbs/verbs.h
+++ b/libibverbs/verbs.h
@@ -437,6 +437,7 @@ enum ibv_create_cq_wc_flags {
IBV_WC_EX_WITH_DLID_PATH_BITS = 1 << 6,
IBV_WC_EX_WITH_COMPLETION_TIMESTAMP = 1 << 7,
IBV_WC_EX_WITH_CVLAN = 1 << 8,
+ IBV_WC_EX_WITH_FLOW_TAG = 1 << 9,
};
enum {
@@ -452,7 +453,8 @@ enum {
enum {
IBV_CREATE_CQ_SUP_WC_FLAGS = IBV_WC_STANDARD_FLAGS |
IBV_WC_EX_WITH_COMPLETION_TIMESTAMP |
- IBV_WC_EX_WITH_CVLAN
+ IBV_WC_EX_WITH_CVLAN |
+ IBV_WC_EX_WITH_FLOW_TAG
};
enum ibv_wc_flags {
@@ -1100,6 +1102,7 @@ struct ibv_cq_ex {
uint8_t (*read_dlid_path_bits)(struct ibv_cq_ex *current);
uint64_t (*read_completion_ts)(struct ibv_cq_ex *current);
uint16_t (*read_cvlan)(struct ibv_cq_ex *current);
+ uint32_t (*read_flow_tag)(struct ibv_cq_ex *current);
};
static inline struct ibv_cq *ibv_cq_ex_to_cq(struct ibv_cq_ex *cq)
@@ -1183,6 +1186,11 @@ static inline uint16_t ibv_wc_read_cvlan(struct ibv_cq_ex *cq)
return cq->read_cvlan(cq);
}
+static inline uint32_t ibv_wc_read_flow_tag(struct ibv_cq_ex *cq)
+{
+ return cq->read_flow_tag(cq);
+}
+
static inline int ibv_post_wq_recv(struct ibv_wq *wq,
struct ibv_recv_wr *recv_wr,
struct ibv_recv_wr **bad_recv_wr)
--
1.8.3.1
--
To unsubscribe from this list: send the line "unsubscribe linux-rdma" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
