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[rdma-core,4/7] ibverbs: Add an option to poll cvlan value from a CQ

Message ID 1489490143-29018-5-git-send-email-yishaih@mellanox.com (mailing list archive)
State Superseded
Headers show

Commit Message

Yishai Hadas March 14, 2017, 11:15 a.m. UTC 
From: Noa Osherovich <noaos@mellanox.com>

When a WQ or a QP is created with cvlan stripping option, it is
stripped from the incoming packet and included in the work
completion.
Extend the poll_cq_ex mechanism with a function that reads the
stripped cvlan value from the work completion.

Signed-off-by: Noa Osherovich <noaos@mellanox.com>
Reviewed-by: Maor Gottlieb <maorg@mellanox.com>
Reviewed-by: Yishai Hadas <yishaih@mellanox.com>
---
 libibverbs/verbs.h | 10 +++++++++-
 1 file changed, 9 insertions(+), 1 deletion(-)
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Patch

diff --git a/libibverbs/verbs.h b/libibverbs/verbs.h
index c9084ea..15e93b3 100644
--- a/libibverbs/verbs.h
+++ b/libibverbs/verbs.h
@@ -435,6 +435,7 @@  enum ibv_create_cq_wc_flags {
 	IBV_WC_EX_WITH_SL		= 1 << 5,
 	IBV_WC_EX_WITH_DLID_PATH_BITS	= 1 << 6,
 	IBV_WC_EX_WITH_COMPLETION_TIMESTAMP	= 1 << 7,
+	IBV_WC_EX_WITH_CVLAN		= 1 << 8,
 };
 
 enum {
@@ -449,7 +450,8 @@  enum {
 
 enum {
 	IBV_CREATE_CQ_SUP_WC_FLAGS = IBV_WC_STANDARD_FLAGS |
-				IBV_WC_EX_WITH_COMPLETION_TIMESTAMP
+				IBV_WC_EX_WITH_COMPLETION_TIMESTAMP |
+				IBV_WC_EX_WITH_CVLAN
 };
 
 enum ibv_wc_flags {
@@ -1092,6 +1094,7 @@  struct ibv_cq_ex {
 	uint8_t (*read_sl)(struct ibv_cq_ex *current);
 	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);
 };
 
 static inline struct ibv_cq *ibv_cq_ex_to_cq(struct ibv_cq_ex *cq)
@@ -1170,6 +1173,11 @@  static inline uint64_t ibv_wc_read_completion_ts(struct ibv_cq_ex *cq)
 	return cq->read_completion_ts(cq);
 }
 
+static inline uint16_t ibv_wc_read_cvlan(struct ibv_cq_ex *cq)
+{
+	return cq->read_cvlan(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)