提交 4ddce14e 编写于 作者: C Christoph Hellwig 提交者: James Bottomley

[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: NJames Bottomley <James.Bottomley@SteelEye.com>
上级 7e55147f
......@@ -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;
}
......
Markdown is supported
0% .
You are about to add 0 people to the discussion. Proceed with caution.
先完成此消息的编辑!
想要评论请 注册