diff options
| author | Hannes Reinecke <hare@suse.de> | 2008-04-18 13:57:20 -0700 |
|---|---|---|
| committer | James Bottomley <James.Bottomley@HansenPartnership.com> | 2008-04-29 19:34:07 -0500 |
| commit | 69cd39e94669e2994277a29249b6ef93b088ddbb (patch) | |
| tree | 722b6477a1b08cb3435c74ae344b79c58d22be04 /drivers/scsi/megaraid/megaraid_mbox.c | |
| parent | 064922a805ec7aadfafdd27aa6b4908d737c3c1d (diff) | |
[SCSI] megaraid_mbox: fix Dell CERC firmware problem
Newer Dell CERC firmware (>= 6.62) implement a random deletion handling
compatible with the legacy megaraid driver. The legacy handling shifted
the target ID by 0x80 only for I/O commands (READ/WRITE/etc), whereas
megaraid_mbox shifts the target ID always if random deletion is supported.
The resulted in megaraid_mbox sending an INQUIRY to the wrong channel, and
not finding any devices, obviously.
So we disable the random deletion support if the offending firmware is
found.
Addresses http://bugzilla.kernel.org/show_bug.cgi?id=6695
Signed-off-by: Hannes Reinecke <hare@suse.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Acked-by: "Yang, Bo" <Bo.Yang@lsi.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
Diffstat (limited to 'drivers/scsi/megaraid/megaraid_mbox.c')
| -rw-r--r-- | drivers/scsi/megaraid/megaraid_mbox.c | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/drivers/scsi/megaraid/megaraid_mbox.c b/drivers/scsi/megaraid/megaraid_mbox.c index 820f91fb63b..70a0f11f48b 100644 --- a/drivers/scsi/megaraid/megaraid_mbox.c +++ b/drivers/scsi/megaraid/megaraid_mbox.c @@ -3168,6 +3168,23 @@ megaraid_mbox_support_random_del(adapter_t *adapter) uint8_t raw_mbox[sizeof(mbox_t)]; int rval; + /* + * Newer firmware on Dell CERC expect a different + * random deletion handling, so disable it. + */ + if (adapter->pdev->vendor == PCI_VENDOR_ID_AMI && + adapter->pdev->device == PCI_DEVICE_ID_AMI_MEGARAID3 && + adapter->pdev->subsystem_vendor == PCI_VENDOR_ID_DELL && + adapter->pdev->subsystem_device == PCI_SUBSYS_ID_CERC_ATA100_4CH && + (adapter->fw_version[0] > '6' || + (adapter->fw_version[0] == '6' && + adapter->fw_version[2] > '6') || + (adapter->fw_version[0] == '6' + && adapter->fw_version[2] == '6' + && adapter->fw_version[3] > '1'))) { + con_log(CL_DLEVEL1, ("megaraid: disable random deletion\n")); + return 0; + } mbox = (mbox_t *)raw_mbox; |