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authorFUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>2007-10-03 09:00:58 +0900
committerJames Bottomley <jejb@mulgrave.localdomain>2007-10-04 12:08:49 -0400
commitd5e89385e92a77b2764d9eb8284808a7628cb2a8 (patch)
tree77bac582ebb8005172382e12d6736e434cac1e1a /drivers/scsi/megaraid.c
parent804b3f9a16e446cb023417faec58b6506c834052 (diff)
[SCSI] megaraid_old: fix READ_CAPACITY
The bulk transfer mode got eleminated by 3f6270ef76f2ce5c134615a470685d6c2a66c07e. Unfortunately, this mode is required for READ_CAPACITY commands on certain cards, so put it back again. This fixes a boot failure regression reported by Burton Windle. Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
Diffstat (limited to 'drivers/scsi/megaraid.c')
-rw-r--r--drivers/scsi/megaraid.c8
1 files changed, 8 insertions, 0 deletions
diff --git a/drivers/scsi/megaraid.c b/drivers/scsi/megaraid.c
index 3907f6718ede..da56163c30a8 100644
--- a/drivers/scsi/megaraid.c
+++ b/drivers/scsi/megaraid.c
@@ -1753,6 +1753,14 @@ mega_build_sglist(adapter_t *adapter, scb_t *scb, u32 *buf, u32 *len)
*len = 0;
+ if (scsi_sg_count(cmd) == 1 && !adapter->has_64bit_addr) {
+ sg = scsi_sglist(cmd);
+ scb->dma_h_bulkdata = sg_dma_address(sg);
+ *buf = (u32)scb->dma_h_bulkdata;
+ *len = sg_dma_len(sg);
+ return 0;
+ }
+
scsi_for_each_sg(cmd, sg, sgcnt, idx) {
if (adapter->has_64bit_addr) {
scb->sgl64[idx].address = sg_dma_address(sg);