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Message-ID: <4573F97B.90707@myri.com> Date: Mon, 04 Dec 2006 11:33:31 +0100 From: Brice Goglin <brice@...i.com> To: Jeff Garzik <jeff@...zik.org> CC: netdev@...r.kernel.org Subject: [PATCH 1/1] myri10ge: write as 2 32-byte blocks in myri10ge_submit_8rx In the myri10ge_submit_8rx() routine, write the 64 byte request block as 2 32-byte blocks so that it is handled by the hardware pio write handler if write-combining is enabled. Signed-off-by: Brice Goglin <brice@...i.com> --- drivers/net/myri10ge/myri10ge.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) Index: linux-2.6.19/drivers/net/myri10ge/myri10ge.c =================================================================== --- linux-2.6.19.orig/drivers/net/myri10ge/myri10ge.c 2006-11-29 22:57:37.000000000 +0100 +++ linux-2.6.19/drivers/net/myri10ge/myri10ge.c 2006-12-04 11:22:48.000000000 +0100 @@ -790,7 +790,9 @@ low = src->addr_low; src->addr_low = DMA_32BIT_MASK; - myri10ge_pio_copy(dst, src, 8 * sizeof(*src)); + myri10ge_pio_copy(dst, src, 4 * sizeof(*src)); + mb(); + myri10ge_pio_copy(dst + 4, src + 4, 4 * sizeof(*src)); mb(); src->addr_low = low; __raw_writel(low, &dst->addr_low); - To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
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