diff options
| author | Ju, Seokmann <Seokmann.Ju@lsil.com> | 2006-07-25 18:44:58 +0400 |
|---|---|---|
| committer | James Bottomley <jejb@mulgrave.il.steeleye.com> | 2006-07-28 22:13:50 +0400 |
| commit | aa677bc7445147f663ebde69d248a30839bada76 (patch) | |
| tree | ae8e932655e44c7b16cb1fb23ed929ce9d3bc138 /drivers/scsi | |
| parent | fbf6080225a03aa2b3671acacebdf615f1d3f6ba (diff) | |
| download | linux-aa677bc7445147f663ebde69d248a30839bada76.tar.xz | |
[SCSI] megaraid_{mm,mbox}: a fix on INQUIRY with EVPD
With this patch, driver will protect data corruption created by
INQUIRY with EVPD request to megaraid controllers. As specified in
the changelog, megaraid F/W already has fixed the issue and being
under process of release. Meanwhile, driver will protect the system
with this patch.
Signed-Off By: Seokmann Ju <seokmann.ju@lsil.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
Diffstat (limited to 'drivers/scsi')
| -rw-r--r-- | drivers/scsi/megaraid/mega_common.h | 3 | ||||
| -rw-r--r-- | drivers/scsi/megaraid/megaraid_mbox.c | 8 |
2 files changed, 11 insertions, 0 deletions
diff --git a/drivers/scsi/megaraid/mega_common.h b/drivers/scsi/megaraid/mega_common.h index 12e38125b123..8cd0bd1d0f7c 100644 --- a/drivers/scsi/megaraid/mega_common.h +++ b/drivers/scsi/megaraid/mega_common.h @@ -40,6 +40,9 @@ #define HBA_SIGNATURE_64_BIT 0x299 #define PCI_CONF_AMISIG64 0xa4 +#define MEGA_SCSI_INQ_EVPD 1 +#define MEGA_INVALID_FIELD_IN_CDB 0x24 + /** * scb_t - scsi command control block diff --git a/drivers/scsi/megaraid/megaraid_mbox.c b/drivers/scsi/megaraid/megaraid_mbox.c index e671af0b4f58..cd982c877da0 100644 --- a/drivers/scsi/megaraid/megaraid_mbox.c +++ b/drivers/scsi/megaraid/megaraid_mbox.c @@ -1644,6 +1644,14 @@ megaraid_mbox_build_cmd(adapter_t *adapter, struct scsi_cmnd *scp, int *busy) rdev->last_disp |= (1L << SCP2CHANNEL(scp)); } + if (scp->cmnd[1] & MEGA_SCSI_INQ_EVPD) { + scp->sense_buffer[0] = 0x70; + scp->sense_buffer[2] = ILLEGAL_REQUEST; + scp->sense_buffer[12] = MEGA_INVALID_FIELD_IN_CDB; + scp->result = CHECK_CONDITION << 1; + return NULL; + } + /* Fall through */ case READ_CAPACITY: |