Commit 4ddce14e authored by Christoph Hellwig's avatar Christoph Hellwig Committed by James Bottomley
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[SCSI] fusion: add MSI support 



On Mon, Jan 16, 2006 at 06:53:24PM -0700, Moore, Eric wrote:
> Adding MSI support, and command line for enabling
> it.  By default, the command line option has MSI disabled.

mpt_msi_enable is initialized to 0 implicitly, no need to do that.  Also
replace if (mpt_msi_enable == 1) tests with just if (mpt_msi_enable).

Updated patch below:

Signed-off-by: default avatarJames Bottomley <James.Bottomley@SteelEye.com>
parent 7e55147f

drivers/message/fusion/mptbase.c

+11 −0
Original line number Diff line number Diff line
@@ -81,6 +81,10 @@ MODULE_LICENSE("GPL"); 
/*

 *  cmd line parameters

 */

static int mpt_msi_enable;

module_param(mpt_msi_enable, int, 0);

MODULE_PARM_DESC(mpt_msi_enable, " MSI Support Enable (default=0)");



#ifdef MFCNT

static int mfcounter = 0;

#define PRINT_MF_COUNT 20000
@@ -1444,6 +1448,9 @@ mpt_attach(struct pci_dev *pdev, const struct pci_device_id *id) 


	ioc->pci_irq = -1;

	if (pdev->irq) {

		if (mpt_msi_enable && !pci_enable_msi(pdev))

			printk(MYIOC_s_INFO_FMT "PCI-MSI enabled\n", ioc->name);



		r = request_irq(pdev->irq, mpt_interrupt, SA_SHIRQ, ioc->name, ioc);



		if (r < 0) {
@@ -1483,6 +1490,8 @@ mpt_attach(struct pci_dev *pdev, const struct pci_device_id *id) 


		list_del(&ioc->list);

		free_irq(ioc->pci_irq, ioc);

		if (mpt_msi_enable)

			pci_disable_msi(pdev);

		iounmap(mem);

		kfree(ioc);

		pci_set_drvdata(pdev, NULL);
@@ -2136,6 +2145,8 @@ mpt_adapter_dispose(MPT_ADAPTER *ioc) 


	if (ioc->pci_irq != -1) {

		free_irq(ioc->pci_irq, ioc);

		if (mpt_msi_enable)

			pci_disable_msi(ioc->pcidev);

		ioc->pci_irq = -1;

	}

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