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| author | FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> | 2007-10-03 02:00:58 +0200 |
|---|---|---|
| committer | James Bottomley <jejb@mulgrave.localdomain> | 2007-10-04 18:08:49 +0200 |
| commit | d5e89385e92a77b2764d9eb8284808a7628cb2a8 (patch) | |
| tree | 77bac582ebb8005172382e12d6736e434cac1e1a /drivers/scsi/megaraid.c | |
| parent | Merge branch 'upstream-linus' of master.kernel.org:/pub/scm/linux/kernel/git/... (diff) | |
| download | linux-d5e89385e92a77b2764d9eb8284808a7628cb2a8.tar.xz linux-d5e89385e92a77b2764d9eb8284808a7628cb2a8.zip | |
[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.c | 8 |
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); |