1 files changed, 54 insertions, 8 deletions

diff --git a/drivers/scsi/megaraid/megaraid_mbox.c b/drivers/scsi/megaraid/megaraid_mbox.c
index bec1424eda85..266b3910846b 100644
--- a/drivers/scsi/megaraid/megaraid_mbox.c
+++ b/drivers/scsi/megaraid/megaraid_mbox.c
@@ -10,7 +10,7 @@
  *         2 of the License, or (at your option) any later version.
  *
  * FILE         : megaraid_mbox.c
- * Version      : v2.20.4.8 (Apr 11 2006)
+ * Version      : v2.20.4.9 (Jul 16 2006)
  *
  * Authors:
  *      Atul Mukker             <Atul.Mukker@lsil.com>
@@ -330,6 +330,21 @@ static struct device_attribute *megaraid_sdev_attrs[] = {
         NULL,
 };
 
+/**
+ * megaraid_change_queue_depth - Change the device's queue depth
+ * @sdev:       scsi device struct
+ * @qdepth:     depth to set
+ *
+ * Return value:
+ *      actual depth set
+ **/
+static int megaraid_change_queue_depth(struct scsi_device *sdev, int qdepth)
+{
+        if (qdepth > MBOX_MAX_SCSI_CMDS)
+                qdepth = MBOX_MAX_SCSI_CMDS;
+        scsi_adjust_queue_depth(sdev, 0, qdepth);
+        return sdev->queue_depth;
+}
 
 /*
  * Scsi host template for megaraid unified driver
@@ -343,6 +358,7 @@ static struct scsi_host_template megaraid_template_g = {
         .eh_device_reset_handler        = megaraid_reset_handler,
         .eh_bus_reset_handler           = megaraid_reset_handler,
         .eh_host_reset_handler          = megaraid_reset_handler,
+        .change_queue_depth             = megaraid_change_queue_depth,
         .use_clustering                 = ENABLE_CLUSTERING,
         .sdev_attrs                     = megaraid_sdev_attrs,
         .shost_attrs                    = megaraid_shost_attrs,
@@ -714,12 +730,13 @@ megaraid_io_detach(adapter_t *adapter)
  * . Allocate memory required for all the commands
  * . Use internal library of FW routines, build up complete soft state
  */
-static int __init
+static int __devinit
 megaraid_init_mbox(adapter_t *adapter)
 {
         struct pci_dev          *pdev;
         mraid_device_t          *raid_dev;
         int                     i;
+        uint32_t                magic64;
 
 
         adapter->ito    = MBOX_TIMEOUT;
@@ -767,7 +784,7 @@ megaraid_init_mbox(adapter_t *adapter)
         //
 
         // request IRQ and register the interrupt service routine
-        if (request_irq(adapter->irq, megaraid_isr, SA_SHIRQ, "megaraid",
+        if (request_irq(adapter->irq, megaraid_isr, IRQF_SHARED, "megaraid",
                 adapter)) {
 
                 con_log(CL_ANN, (KERN_WARNING
@@ -863,12 +880,33 @@ megaraid_init_mbox(adapter_t *adapter)
 
         // Set the DMA mask to 64-bit. All supported controllers as capable of
         // DMA in this range
-        if (pci_set_dma_mask(adapter->pdev, DMA_64BIT_MASK) != 0) {
-
-                con_log(CL_ANN, (KERN_WARNING
-                        "megaraid: could not set DMA mask for 64-bit.\n"));
+        pci_read_config_dword(adapter->pdev, PCI_CONF_AMISIG64, &magic64);
+
+        if (((magic64 == HBA_SIGNATURE_64_BIT) &&
+                ((adapter->pdev->subsystem_device !=
+                PCI_SUBSYS_ID_MEGARAID_SATA_150_6) ||
+                (adapter->pdev->subsystem_device !=
+                PCI_SUBSYS_ID_MEGARAID_SATA_150_4))) ||
+                (adapter->pdev->vendor == PCI_VENDOR_ID_LSI_LOGIC &&
+                adapter->pdev->device == PCI_DEVICE_ID_VERDE) ||
+                (adapter->pdev->vendor == PCI_VENDOR_ID_LSI_LOGIC &&
+                adapter->pdev->device == PCI_DEVICE_ID_DOBSON) ||
+                (adapter->pdev->vendor == PCI_VENDOR_ID_LSI_LOGIC &&
+                adapter->pdev->device == PCI_DEVICE_ID_LINDSAY) ||
+                (adapter->pdev->vendor == PCI_VENDOR_ID_DELL &&
+                adapter->pdev->device == PCI_DEVICE_ID_PERC4_DI_EVERGLADES) ||
+                (adapter->pdev->vendor == PCI_VENDOR_ID_DELL &&
+                adapter->pdev->device == PCI_DEVICE_ID_PERC4E_DI_KOBUK)) {
+                if (pci_set_dma_mask(adapter->pdev, DMA_64BIT_MASK)) {
+                        con_log(CL_ANN, (KERN_WARNING
+                                "megaraid: DMA mask for 64-bit failed\n"));
 
-                goto out_free_sysfs_res;
+                        if (pci_set_dma_mask (adapter->pdev, DMA_32BIT_MASK)) {
+                                con_log(CL_ANN, (KERN_WARNING
+                                        "megaraid: 32-bit DMA mask failed\n"));
+                                goto out_free_sysfs_res;
+                        }
+                }
         }
 
         // setup tasklet for DPC
@@ -1622,6 +1660,14 @@ 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: