From aa677bc7445147f663ebde69d248a30839bada76 Mon Sep 17 00:00:00 2001 From: "Ju, Seokmann" Date: Tue, 25 Jul 2006 08:44:58 -0600 Subject: [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 Signed-off-by: James Bottomley --- drivers/scsi/megaraid/mega_common.h | 3 +++ drivers/scsi/megaraid/megaraid_mbox.c | 8 ++++++++ 2 files changed, 11 insertions(+) (limited to 'drivers/scsi/megaraid') diff --git a/drivers/scsi/megaraid/mega_common.h b/drivers/scsi/megaraid/mega_common.h index 12e38125b12..8cd0bd1d0f7 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 e671af0b4f5..cd982c877da 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: -- cgit v1.2.3-70-g09d2