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bnxt_en: Reduce maximum ring pages if page size is 64K. 

The chip supports 4K/8K/64K page sizes for the rings and we try to
match it to the CPU PAGE_SIZE.  The current page size limits for the rings
are based on 4K/8K page size. If the page size is 64K, these limits are
too large.  Reduce them appropriately.

Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Michael Chan 2016-05-15 03:04:46 -04:00 committed by David S. Miller
parent 90c4f788f6
commit d0a42d6fc8
1 changed files with 7 additions and 0 deletions
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7
drivers/net/ethernet/broadcom/bnxt/bnxt.h
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@ -425,10 +425,17 @@ struct rx_tpa_end_cmp_ext {
#define MAX_TPA 64
#if (BNXT_PAGE_SHIFT == 16)
#define MAX_RX_PAGES 1
#define MAX_RX_AGG_PAGES 4
#define MAX_TX_PAGES 1
#define MAX_CP_PAGES 8
#else
#define MAX_RX_PAGES 8
#define MAX_RX_AGG_PAGES 32
#define MAX_TX_PAGES 8
#define MAX_CP_PAGES 64
#endif
#define RX_DESC_CNT (BNXT_PAGE_SIZE / sizeof(struct rx_bd))
#define TX_DESC_CNT (BNXT_PAGE_SIZE / sizeof(struct tx_bd))