RDS: Rewrite rds_send_xmit
Simplify rds_send_xmit().
Send a congestion map (via xmit_cong_map) without
decrementing send_quota.
Move resetting of conn xmit variables to end of loop.
Update comments.
Implement a special case to turn off sending an rds header
when there is an atomic op and no other data.
Signed-off-by: Andy Grover <andy.grover@oracle.com>
diff --git a/net/rds/rds.h b/net/rds/rds.h
index d702849..13ed30ac 100644
--- a/net/rds/rds.h
+++ b/net/rds/rds.h
@@ -96,8 +96,9 @@
unsigned long c_xmit_sg;
unsigned int c_xmit_hdr_off;
unsigned int c_xmit_data_off;
- unsigned int c_xmit_rdma_sent;
unsigned int c_xmit_atomic_sent;
+ unsigned int c_xmit_rdma_sent;
+ unsigned int c_xmit_data_sent;
spinlock_t c_lock; /* protect msg queues */
u64 c_next_tx_seq;
@@ -120,8 +121,6 @@
struct list_head c_map_item;
unsigned long c_map_queued;
- unsigned long c_map_offset;
- unsigned long c_map_bytes;
unsigned int c_unacked_packets;
unsigned int c_unacked_bytes;