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authorMichael Chan <mchan@broadcom.com>2011-01-25 17:14:50 -0500
committerDavid S. Miller <davem@davemloft.net>2011-01-26 17:26:00 -0500
commit5138826b52f8bc441770069b1b305e1d1426ae9e (patch)
treef1275b4ae1848783272e0b194e10c843016c606f /drivers/net
parent7cc2edb83447775a34ed3bf9d29d8295a434b523 (diff)
cnic: Fix big endian bug
The chip's page tables did not set up properly on big endian machines, causing EEH errors on PPC machines. Reported-by: Breno Leitao <leitao@linux.vnet.ibm.com> Signed-off-by: Michael Chan <mchan@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net')
-rw-r--r--drivers/net/cnic.c12
1 files changed, 6 insertions, 6 deletions
diff --git a/drivers/net/cnic.c b/drivers/net/cnic.c
index 263a2944566f..7ff170cbc7dc 100644
--- a/drivers/net/cnic.c
+++ b/drivers/net/cnic.c
@@ -699,13 +699,13 @@ static void cnic_free_dma(struct cnic_dev *dev, struct cnic_dma *dma)
699static void cnic_setup_page_tbl(struct cnic_dev *dev, struct cnic_dma *dma) 699static void cnic_setup_page_tbl(struct cnic_dev *dev, struct cnic_dma *dma)
700{ 700{
701 int i; 701 int i;
702 u32 *page_table = dma->pgtbl; 702 __le32 *page_table = (__le32 *) dma->pgtbl;
703 703
704 for (i = 0; i < dma->num_pages; i++) { 704 for (i = 0; i < dma->num_pages; i++) {
705 /* Each entry needs to be in big endian format. */ 705 /* Each entry needs to be in big endian format. */
706 *page_table = (u32) ((u64) dma->pg_map_arr[i] >> 32); 706 *page_table = cpu_to_le32((u64) dma->pg_map_arr[i] >> 32);
707 page_table++; 707 page_table++;
708 *page_table = (u32) dma->pg_map_arr[i]; 708 *page_table = cpu_to_le32(dma->pg_map_arr[i] & 0xffffffff);
709 page_table++; 709 page_table++;
710 } 710 }
711} 711}
@@ -713,13 +713,13 @@ static void cnic_setup_page_tbl(struct cnic_dev *dev, struct cnic_dma *dma)
713static void cnic_setup_page_tbl_le(struct cnic_dev *dev, struct cnic_dma *dma) 713static void cnic_setup_page_tbl_le(struct cnic_dev *dev, struct cnic_dma *dma)
714{ 714{
715 int i; 715 int i;
716 u32 *page_table = dma->pgtbl; 716 __le32 *page_table = (__le32 *) dma->pgtbl;
717 717
718 for (i = 0; i < dma->num_pages; i++) { 718 for (i = 0; i < dma->num_pages; i++) {
719 /* Each entry needs to be in little endian format. */ 719 /* Each entry needs to be in little endian format. */
720 *page_table = dma->pg_map_arr[i] & 0xffffffff; 720 *page_table = cpu_to_le32(dma->pg_map_arr[i] & 0xffffffff);
721 page_table++; 721 page_table++;
722 *page_table = (u32) ((u64) dma->pg_map_arr[i] >> 32); 722 *page_table = cpu_to_le32((u64) dma->pg_map_arr[i] >> 32);
723 page_table++; 723 page_table++;
724 } 724 }
725} 725}