diff options
| author | Christoph Hellwig <hch@infradead.org> | 2006-01-17 13:44:29 +0000 |
|---|---|---|
| committer | James Bottomley <jejb@mulgrave.(none)> | 2006-01-31 14:39:59 -0600 |
| commit | 4ddce14e753fd4fe7445fa046a3aee155c2e48f4 (patch) | |
| tree | c95e910366dd8412ae8be1e5f73c56aca5576044 | |
| parent | 7e55147fe3203b72e80186c45df9bf0fd6cd97c9 (diff) | |
[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: James Bottomley <James.Bottomley@SteelEye.com>
| -rw-r--r-- | drivers/message/fusion/mptbase.c | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/drivers/message/fusion/mptbase.c b/drivers/message/fusion/mptbase.c index 2ef64b9ada88..e352b000c7d1 100644 --- a/drivers/message/fusion/mptbase.c +++ b/drivers/message/fusion/mptbase.c @@ -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; } |