diff options
| author | Ron Mercer <ron.mercer@qlogic.com> | 2010-01-02 10:37:42 +0000 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2010-01-06 20:30:33 -0800 |
| commit | 572c526fb19a9a24098de814ab0601c1ce1bac82 (patch) | |
| tree | 3fa7cad3dc93b5e67bae94e5ba1427b878bdfa5e /drivers | |
| parent | c36531b9b2e00d9715c3a0f5788ac5311435e078 (diff) | |
| download | linux-572c526fb19a9a24098de814ab0601c1ce1bac82.tar.bz2 | |
qlge: Turn on RX header split based on platform.
Using 4-byte aligned headers is problematic for some architectures.
Since qlge uses 4-byte aligned rx buffers we split headers for these
architectures into a separate buffer and then recopy to align on 2-byte boundary.
Signed-off-by: Ron Mercer <ron.mercer@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/net/qlge/qlge.h | 19 | ||||
| -rw-r--r-- | drivers/net/qlge/qlge_main.c | 6 |
2 files changed, 18 insertions, 7 deletions
diff --git a/drivers/net/qlge/qlge.h b/drivers/net/qlge/qlge.h index 862c1aaf3860..ee0e2bd4842f 100644 --- a/drivers/net/qlge/qlge.h +++ b/drivers/net/qlge/qlge.h @@ -54,12 +54,8 @@ #define RX_RING_SHADOW_SPACE (sizeof(u64) + \ MAX_DB_PAGES_PER_BQ(NUM_SMALL_BUFFERS) * sizeof(u64) + \ MAX_DB_PAGES_PER_BQ(NUM_LARGE_BUFFERS) * sizeof(u64)) -#define SMALL_BUFFER_SIZE 512 -#define SMALL_BUF_MAP_SIZE (SMALL_BUFFER_SIZE / 2) #define LARGE_BUFFER_MAX_SIZE 8192 #define LARGE_BUFFER_MIN_SIZE 2048 -#define MAX_SPLIT_SIZE 1023 -#define QLGE_SB_PAD 32 #define MAX_CQ 128 #define DFLT_COALESCE_WAIT 100 /* 100 usec wait for coalescing */ @@ -737,6 +733,21 @@ enum { PRB_MX_DATA = 0xfc, /* Use semaphore */ }; +#ifdef CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS +#define SMALL_BUFFER_SIZE 256 +#define SMALL_BUF_MAP_SIZE SMALL_BUFFER_SIZE +#define SPLT_SETTING FSC_DBRST_1024 +#define SPLT_LEN 0 +#define QLGE_SB_PAD 0 +#else +#define SMALL_BUFFER_SIZE 512 +#define SMALL_BUF_MAP_SIZE (SMALL_BUFFER_SIZE / 2) +#define SPLT_SETTING FSC_SH +#define SPLT_LEN (SPLT_HDR_EP | \ + min(SMALL_BUF_MAP_SIZE, 1023)) +#define QLGE_SB_PAD 32 +#endif + /* * CAM output format. */ diff --git a/drivers/net/qlge/qlge_main.c b/drivers/net/qlge/qlge_main.c index 707b391afa02..c3034786965d 100644 --- a/drivers/net/qlge/qlge_main.c +++ b/drivers/net/qlge/qlge_main.c @@ -3332,15 +3332,15 @@ static int ql_adapter_initialize(struct ql_adapter *qdev) /* Enable the function, set pagesize, enable error checking. */ value = FSC_FE | FSC_EPC_INBOUND | FSC_EPC_OUTBOUND | - FSC_EC | FSC_VM_PAGE_4K | FSC_SH; + FSC_EC | FSC_VM_PAGE_4K; + value |= SPLT_SETTING; /* Set/clear header splitting. */ mask = FSC_VM_PAGESIZE_MASK | FSC_DBL_MASK | FSC_DBRST_MASK | (value << 16); ql_write32(qdev, FSC, mask | value); - ql_write32(qdev, SPLT_HDR, SPLT_HDR_EP | - min(SMALL_BUF_MAP_SIZE, MAX_SPLIT_SIZE)); + ql_write32(qdev, SPLT_HDR, SPLT_LEN); /* Set RX packet routing to use port/pci function on which the * packet arrived on in addition to usual frame routing. |