[Patch net-next 08/11] net:fec: change FEC alignment to 64 bytes for ARM platform
From: Frank Li <hidden>
Date: 2014-09-03 20:38:14
Also in:
netdev
Subsystem:
freescale imx / mxc fec driver, networking drivers, the rest · Maintainers:
Wei Fang, Andrew Lunn, "David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, Linus Torvalds
Possibly related (same subject, not in this thread)
- 2014-09-04 · Re: [Patch net-next 08/11] net:fec: change FEC alignment to 64 bytes for ARM platform · Zhi Li <hidden>
- 2014-09-03 · [Patch net-next 08/11] net:fec: change FEC alignment to 64 bytes for ARM platform · <hidden>
- 2014-09-03 · [Patch net-next 08/11] net:fec: change FEC alignment to 64 bytes for ARM platform · <hidden>
From: Fugang Duan <redacted> Since enet-avb has 64 bytes alignment limitation for rx DMA transfer. The previous enet IP for ARM platform has 16 bytes alignment for tx DMA transfer. 64 is the an integral number of 16, so change alignment to 64 bytes for all ARM platform, which don't impact the performance of previous platform. Signed-off-by: Fugang Duan <redacted> Signed-off-by: Frank Li <redacted> --- drivers/net/ethernet/freescale/fec_main.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/net/ethernet/freescale/fec_main.c b/drivers/net/ethernet/freescale/fec_main.c
index a232245..b388e29f 100644
--- a/drivers/net/ethernet/freescale/fec_main.c
+++ b/drivers/net/ethernet/freescale/fec_main.c@@ -65,7 +65,7 @@ static void set_multicast_list(struct net_device *ndev); #if defined(CONFIG_ARM) -#define FEC_ALIGNMENT 0xf +#define FEC_ALIGNMENT 0x3f #else #define FEC_ALIGNMENT 0x3 #endif
--
1.9.1
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