2 files changed, 18 insertions, 0 deletions

diff --git a/drivers/scsi/megaraid/megaraid_mbox.c b/drivers/scsi/megaraid/megaraid_mbox.c
index 820f91fb63ba..70a0f11f48b2 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;
 
diff --git a/drivers/scsi/megaraid/megaraid_mbox.h b/drivers/scsi/megaraid/megaraid_mbox.h
index 626459d1e902..c1d86d961a92 100644
--- a/drivers/scsi/megaraid/megaraid_mbox.h
+++ b/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