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cxgb3: ring rx door bell less frequently

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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>
This commit is contained in:
Divy Le Ray
2009-03-12 21:13:43 +00:00
committed by David S. Miller
parent ff5e2b4732
commit 26b3871d2c
2 changed files with 25 additions and 8 deletions
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drivers/net/cxgb3/adapter.h
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@@ -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 */