net/rds : Adding support to print SCQ and RCQ completion vectors in rds-info.

This change adds support to display completion vectors associated with
Send CQ and Receive CQ in rds-info.

We can use 'rds-info -Iv' to get these fields.

Orabug: 34398210

Signed-off-by: Anand Khoje <[email protected]>
Reviewed-by: Arumugam Kolappan <[email protected]>
Signed-off-by: Saeed Mirzamohammadi <[email protected]>

Author: Anand Khoje

include/uapi/linux/rds.h

@@ -313,7 +313,8 @@ struct rds_info_rdma_connection {
 	uint64_t	rx_poll_ts;
 	uint64_t	tx_poll_cnt;
 	uint64_t	rx_poll_cnt;
-
+	int32_t         scq_vector;
+	int32_t         rcq_vector;
 };
 
 struct rds6_info_rdma_connection {
@@ -347,6 +348,8 @@ struct rds6_info_rdma_connection {
 	uint64_t	rx_poll_ts;
 	uint64_t	tx_poll_cnt;
 	uint64_t	rx_poll_cnt;
+	int32_t         scq_vector;
+	int32_t         rcq_vector;
 };
 
 struct rds_path_info {

net/rds/ib.c

@@ -708,6 +708,8 @@ static int rds_ib_conn_info_visitor(struct rds_connection *conn,
 			(uint64_t)atomic64_read(&ic->i_tx_poll_cnt);
 		iinfo->rx_poll_cnt =
 			(uint64_t)atomic64_read(&ic->i_rx_poll_cnt);
+		iinfo->scq_vector = ic->i_scq_vector;
+		iinfo->rcq_vector = ic->i_rcq_vector;
 	}
 	return 1;
 }
@@ -779,6 +781,8 @@ static int rds6_ib_conn_info_visitor(struct rds_connection *conn,
 			(uint64_t)atomic64_read(&ic->i_tx_poll_cnt);
 		iinfo6->rx_poll_cnt =
 			(uint64_t)atomic64_read(&ic->i_rx_poll_cnt);
+		iinfo6->scq_vector = ic->i_scq_vector;
+		iinfo6->rcq_vector = ic->i_rcq_vector;
 	}
 	return 1;
 }