commit 0e98936c924e2329f876b0b7791b45249c2e2129
author Sumant Patro <sumantp@lsil.com> Tue Jun 20 15:32:37 2006 -0700
committer James Bottomley <jejb@mulgrave.il.steeleye.com> Mon Jun 26 09:29:07 2006 -0500
tree 83893e205f60aa728dc9d912981a92c856e50133
parent cefbda2d6cd9bf78a93768130729a6d142588d67

[SCSI] megaraid_sas: zcr with fix

The patch adds support for a ZCR controller (Device ID : 0x413).

It also has a critical bug fix :

Disable controller interrupt before firing INIT cmd to FW.  Interrupt
is enabled after required initialization is over. This is done to
ensure that driver is ready to handle interrupts when it is generated
by the controller.

Signed-off-by: Sumant Patro <Sumant.Patro@lsil.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>

drivers/scsi/megaraid/megaraid_sas.c

diff --git a/drivers/scsi/megaraid/megaraid_sas.c b/drivers/scsi/megaraid/megaraid_sas.c
index 0c9516f..3e6f9fe 100644
--- a/drivers/scsi/megaraid/megaraid_sas.c
+++ b/drivers/scsi/megaraid/megaraid_sas.c
@@ -10,7 +10,7 @@
  *	   2 of the License, or (at your option) any later version.
  *
  * FILE		: megaraid_sas.c
- * Version	: v00.00.02.04
+ * Version	: v00.00.03.01
  *
  * Authors:
  * 	Sreenivas Bagalkote	<Sreenivas.Bagalkote@lsil.com>
@@ -55,19 +55,25 @@
 
 	{
 	 PCI_VENDOR_ID_LSI_LOGIC,
-	 PCI_DEVICE_ID_LSI_SAS1064R, // xscale IOP
+	 PCI_DEVICE_ID_LSI_SAS1064R, /* xscale IOP */
 	 PCI_ANY_ID,
 	 PCI_ANY_ID,
 	 },
 	{
 	 PCI_VENDOR_ID_LSI_LOGIC,
-	 PCI_DEVICE_ID_LSI_SAS1078R, // ppc IOP
+	 PCI_DEVICE_ID_LSI_SAS1078R, /* ppc IOP */
 	 PCI_ANY_ID,
 	 PCI_ANY_ID,
 	},
 	{
+	 PCI_VENDOR_ID_LSI_LOGIC,
+	 PCI_DEVICE_ID_LSI_VERDE_ZCR,	/* xscale IOP, vega */
+	 PCI_ANY_ID,
+	 PCI_ANY_ID,
+	 },
+	{
 	 PCI_VENDOR_ID_DELL,
-	 PCI_DEVICE_ID_DELL_PERC5, // xscale IOP
+	 PCI_DEVICE_ID_DELL_PERC5, /* xscale IOP */
 	 PCI_ANY_ID,
 	 PCI_ANY_ID,
 	 },
@@ -289,9 +295,14 @@
  * @regs:			MFI register set
  */
 static inline void
-megasas_disable_intr(struct megasas_register_set __iomem * regs)
+megasas_disable_intr(struct megasas_instance *instance)
 {
 	u32 mask = 0x1f; 
+	struct megasas_register_set __iomem *regs = instance->reg_set;
+
+	if(instance->pdev->device == PCI_DEVICE_ID_LSI_SAS1078R)
+		mask = 0xffffffff;
+
 	writel(mask, &regs->outbound_intr_mask);
 
 	/* Dummy readl to force pci flush */
@@ -1260,7 +1271,7 @@
 			/*
 			 * Bring it to READY state; assuming max wait 2 secs
 			 */
-			megasas_disable_intr(instance->reg_set);
+			megasas_disable_intr(instance);
 			writel(MFI_INIT_READY, &instance->reg_set->inbound_doorbell);
 
 			max_wait = 10;
@@ -1757,6 +1768,11 @@
 	init_frame->data_xfer_len = sizeof(struct megasas_init_queue_info);
 
 	/*
+	 * disable the intr before firing the init frame to FW
+	 */
+	megasas_disable_intr(instance);
+
+	/*
 	 * Issue the init frame in polled mode
 	 */
 	if (megasas_issue_polled(instance, cmd)) {
@@ -2234,7 +2250,7 @@
 	megasas_mgmt_info.max_index--;
 
 	pci_set_drvdata(pdev, NULL);
-	megasas_disable_intr(instance->reg_set);
+	megasas_disable_intr(instance);
 	free_irq(instance->pdev->irq, instance);
 
 	megasas_release_mfi(instance);
@@ -2364,7 +2380,7 @@
 
 	pci_set_drvdata(instance->pdev, NULL);
 
-	megasas_disable_intr(instance->reg_set);
+	megasas_disable_intr(instance);
 
 	free_irq(instance->pdev->irq, instance);