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bnx2x: simplify definition of RX_SGE_MASK_LEN and use it.

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Signed-off-by: Dmitry Kravkov <dmitry@broadcom.com>
Signed-off-by: Eilon Greenstein <eilong@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Dmitry Kravkov 2011-11-13 04:34:27 +00:00 committed by David S. Miller
parent f9c058b633
commit b363782761
2 changed files with 2 additions and 4 deletions
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3
drivers/net/ethernet/broadcom/bnx2x/bnx2x.h
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@ -411,8 +411,7 @@ union db_prod {
/* Number of u64 elements in SGE mask array */
#define RX_SGE_MASK_LEN ((NUM_RX_SGE_PAGES * RX_SGE_CNT) / \
BIT_VEC64_ELEM_SZ)
#define RX_SGE_MASK_LEN (NUM_RX_SGE / BIT_VEC64_ELEM_SZ)
#define RX_SGE_MASK_LEN_MASK (RX_SGE_MASK_LEN - 1)
#define NEXT_SGE_MASK_ELEM(el) (((el) + 1) & RX_SGE_MASK_LEN_MASK)

3
drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.h
View File

@ -874,8 +874,7 @@ static inline void bnx2x_clear_sge_mask_next_elems(struct bnx2x_fastpath *fp)
static inline void bnx2x_init_sge_ring_bit_mask(struct bnx2x_fastpath *fp)
{
/* Set the mask to all 1-s: it's faster to compare to 0 than to 0xf-s */
memset(fp->sge_mask, 0xff,
(NUM_RX_SGE >> BIT_VEC64_ELEM_SHIFT)*sizeof(u64));
memset(fp->sge_mask, 0xff, sizeof(fp->sge_mask));
/* Clear the two last indices in the page to 1:
these are the indices that correspond to the "next" element,