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bnx2x: Disable HC coalescing when setting timeout to zero.

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Problem reported by Flavio Leitner <fleitner@redhat.com>:
When setting rx/tx coalescing timeout to the values less than 12 traffic was
stopped.

The FW supports coalescing in 12us granularity, and so value of less then 12
should be interpreted as disabling coalescing

Signed-off-by: Vlad Zolotarov <vladz@broadcom.com>
Signed-off-by: Eilon Greenstein <eilong@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Eilon Greenstein 2009-07-05 04:18:12 +00:00 committed by David S. Miller
parent d23e43658a
commit 3799cf47e3
1 changed files with 2 additions and 2 deletions
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4
drivers/net/bnx2x_main.c
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@ -4434,7 +4434,7 @@ static void bnx2x_update_coalesce(struct bnx2x *bp)
REG_WR16(bp, BAR_USTRORM_INTMEM +
USTORM_SB_HC_DISABLE_OFFSET(port, sb_id,
U_SB_ETH_RX_CQ_INDEX),
bp->rx_ticks ? 0 : 1);
(bp->rx_ticks/12) ? 0 : 1);
/* HC_INDEX_C_ETH_TX_CQ_CONS */
REG_WR8(bp, BAR_CSTRORM_INTMEM +
@ -4444,7 +4444,7 @@ static void bnx2x_update_coalesce(struct bnx2x *bp)
REG_WR16(bp, BAR_CSTRORM_INTMEM +
CSTORM_SB_HC_DISABLE_OFFSET(port, sb_id,
C_SB_ETH_TX_CQ_INDEX),
bp->tx_ticks ? 0 : 1);
(bp->tx_ticks/12) ? 0 : 1);
}
}