From: Janusz Krzysztofik <jkrzyszt@xxxxxxxxxxxx>
The old megaraid driver is apparently borken for firmware newer than 6.61.
megaraid_mbox works OK for Janusz with F/W 6.61.
Check for the F/W version and display a helpful warning if it is too high. It
should make life easier for those who may face the problem.
Cc: "Ju, Seokmann" <Seokmann.Ju@xxxxxxxx>
Cc: James Bottomley <James.Bottomley@xxxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxx>
---
drivers/scsi/megaraid/megaraid_mbox.c | 16 ++++++++++++++++
drivers/scsi/megaraid/megaraid_mbox.h | 1 +
2 files changed, 17 insertions(+)
diff -puN drivers/scsi/megaraid/megaraid_mbox.c~megaraid-check-for-firmware-version drivers/scsi/megaraid/megaraid_mbox.c
--- a/drivers/scsi/megaraid/megaraid_mbox.c~megaraid-check-for-firmware-version
+++ a/drivers/scsi/megaraid/megaraid_mbox.c
@@ -25,6 +25,7 @@
* Dell PERC3/QC 101E 1960 1028 0471
* Dell PERC3/DC 101E 1960 1028 0493
* Dell PERC3/SC 101E 1960 1028 0475
+ * Dell CERC ATA100/4ch with F/W<=6.61 101E 1960 1028 0511
* Dell PERC3/Di 1028 1960 1028 0123
* Dell PERC4/SC 1000 1960 1028 0520
* Dell PERC4/DC 1000 1960 1028 0518
@@ -807,6 +808,21 @@ megaraid_init_mbox(adapter_t *adapter)
goto out_alloc_cmds;
}
+ // Compatibility check
+ 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_ANN, (KERN_WARNING
+ "megaraid: problems? downgrade F/W to version 6.61\n"));
+ }
+
// Do we support extended CDBs
adapter->max_cdb_sz = 10;
if (megaraid_mbox_extended_cdb(adapter) == 0) {
diff -puN drivers/scsi/megaraid/megaraid_mbox.h~megaraid-check-for-firmware-version drivers/scsi/megaraid/megaraid_mbox.h
--- a/drivers/scsi/megaraid/megaraid_mbox.h~megaraid-check-for-firmware-version
+++ a/drivers/scsi/megaraid/megaraid_mbox.h
@@ -88,6 +88,7 @@
#define PCI_SUBSYS_ID_PERC3_QC 0x0471
#define PCI_SUBSYS_ID_PERC3_DC 0x0493
#define PCI_SUBSYS_ID_PERC3_SC 0x0475
+#define PCI_SUBSYS_ID_CERC_ATA100_4CH 0x0511
#define MBOX_MAX_SCSI_CMDS 128 // number of cmds reserved for kernel
_
-
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