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[1/3] RDMA/rtrs: Update comments for MAX_SESS_QUEUE_DEPTH

Message ID 20220902101922.26273-2-guoqing.jiang@linux.dev (mailing list archive)
State Superseded
Headers show
Series misc changes for rtrs | expand

Commit Message

Guoqing Jiang Sept. 2, 2022, 10:19 a.m. UTC 
The maximum queue_depth should be 65535 per check_module_params,
also update other relevant comments.

Signed-off-by: Guoqing Jiang <guoqing.jiang@linux.dev>
---
 drivers/infiniband/ulp/rtrs/rtrs-pri.h | 7 +++----
 1 file changed, 3 insertions(+), 4 deletions(-)
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Patch

diff --git a/drivers/infiniband/ulp/rtrs/rtrs-pri.h b/drivers/infiniband/ulp/rtrs/rtrs-pri.h
index ac0df734eba8..a2420eecaf5a 100644
--- a/drivers/infiniband/ulp/rtrs/rtrs-pri.h
+++ b/drivers/infiniband/ulp/rtrs/rtrs-pri.h
@@ -26,11 +26,10 @@ 
 /*
  * Max IB immediate data size is 2^28 (MAX_IMM_PAYL_BITS)
  * and the minimum chunk size is 4096 (2^12).
- * So the maximum sess_queue_depth is 65536 (2^16) in theory.
- * But mempool_create, create_qp and ib_post_send fail with
- * "cannot allocate memory" error if sess_queue_depth is too big.
+ * So the maximum sess_queue_depth is 65535 (2^16 - 1) in theory
+ * since queue_depth in rtrs_msg_conn_rsp is defined as le16.
  * Therefore the pratical max value of sess_queue_depth is
- * somewhere between 1 and 65534 and it depends on the system.
+ * somewhere between 1 and 65535 and it depends on the system.
  */
 #define MAX_SESS_QUEUE_DEPTH 65535