cxgb3: ring rx door bell less frequently

Ring free lists door bell less frequently,
specifically every quarter of the active FL
size.

Signed-off-by: Divy Le Ray <divy@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 1 insertions, 0 deletions

diff --git a/drivers/net/cxgb3/adapter.h b/drivers/net/cxgb3/adapter.h
index fbe15699584e..95dce4832478 100644
--- a/drivers/net/cxgb3/adapter.h
+++ b/drivers/net/cxgb3/adapter.h
@@ -91,6 +91,7 @@ struct rx_sw_desc;
 struct sge_fl {                     /* SGE per free-buffer list state */
         unsigned int buf_size;      /* size of each Rx buffer */
         unsigned int credits;       /* # of available Rx buffers */
+        unsigned int pend_cred;     /* new buffers since last FL DB ring */
         unsigned int size;          /* capacity of free list */
         unsigned int cidx;          /* consumer index */
         unsigned int pidx;          /* producer index */