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sfc: Use CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS where appropriate 

For some buffers we use a starting offset of either NET_IP_ALIGN or 0
depending on whether we believe the architecture supports efficient
access to unaligned words.  There is now a config macro specifying
whether this is the case, so check that rather than checking for
specific architectures.

Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
This commit is contained in:
Ben Hutchings 2008-09-01 12:50:28 +01:00 committed by Jeff Garzik
parent 951f46a1a2
commit 13e9ab1143
2 changed files with 2 additions and 2 deletions
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2
drivers/net/sfc/net_driver.h
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@ -474,7 +474,7 @@ enum nic_state {
* This is the equivalent of NET_IP_ALIGN [which controls the alignment
* of the skb->head for hardware DMA].
*/
#if defined(__i386__) || defined(__x86_64__)
#ifdef CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS
#define EFX_PAGE_IP_ALIGN 0
#else
#define EFX_PAGE_IP_ALIGN NET_IP_ALIGN

2
drivers/net/sfc/tx.c
View File

@ -516,7 +516,7 @@ void efx_remove_tx_queue(struct efx_tx_queue *tx_queue)
/* Number of bytes inserted at the start of a TSO header buffer,
* similar to NET_IP_ALIGN.
*/
#if defined(__i386__) || defined(__x86_64__)
#ifdef CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS
#define TSOH_OFFSET 0
#else
#define TSOH_OFFSET NET_IP_ALIGN