From e57895d38991036f9ccf193b70fc5ebd5f6e6dc9 Mon Sep 17 00:00:00 2001 From: Adrian Bunk Date: Tue, 1 Jan 2008 15:47:10 +0200 Subject: IB/mthca: Remove MSI support as scheduled Remove MSI support from the mthca driver, as scheduled. There is no reason to use MSI instead of MSI-X, since MSI-X performs better. No one has spoken up since MSI support was deprecated in commit f6be6fbe ("IB/mthca: Schedule MSI support for removal"), so apparently the MSI support is unused. Signed-off-by: Adrian Bunk Signed-off-by: Roland Dreier --- drivers/infiniband/hw/mthca/mthca_main.c | 38 +++++--------------------------- 1 file changed, 5 insertions(+), 33 deletions(-) (limited to 'drivers/infiniband/hw/mthca/mthca_main.c') diff --git a/drivers/infiniband/hw/mthca/mthca_main.c b/drivers/infiniband/hw/mthca/mthca_main.c index 60de6f93869..2fc36ca134a 100644 --- a/drivers/infiniband/hw/mthca/mthca_main.c +++ b/drivers/infiniband/hw/mthca/mthca_main.c @@ -65,14 +65,9 @@ static int msi_x = 1; module_param(msi_x, int, 0444); MODULE_PARM_DESC(msi_x, "attempt to use MSI-X if nonzero"); -static int msi = 0; -module_param(msi, int, 0444); -MODULE_PARM_DESC(msi, "attempt to use MSI if nonzero (deprecated, use MSI-X instead)"); - #else /* CONFIG_PCI_MSI */ #define msi_x (0) -#define msi (0) #endif /* CONFIG_PCI_MSI */ @@ -816,13 +811,11 @@ static int mthca_setup_hca(struct mthca_dev *dev) err = mthca_NOP(dev, &status); if (err || status) { - if (dev->mthca_flags & (MTHCA_FLAG_MSI | MTHCA_FLAG_MSI_X)) { + if (dev->mthca_flags & MTHCA_FLAG_MSI_X) { mthca_warn(dev, "NOP command failed to generate interrupt " "(IRQ %d).\n", - dev->mthca_flags & MTHCA_FLAG_MSI_X ? - dev->eq_table.eq[MTHCA_EQ_CMD].msi_x_vector : - dev->pdev->irq); - mthca_warn(dev, "Trying again with MSI/MSI-X disabled.\n"); + dev->eq_table.eq[MTHCA_EQ_CMD].msi_x_vector); + mthca_warn(dev, "Trying again with MSI-X disabled.\n"); } else { mthca_err(dev, "NOP command failed to generate interrupt " "(IRQ %d), aborting.\n", @@ -1128,29 +1121,12 @@ static int __mthca_init_one(struct pci_dev *pdev, int hca_type) if (msi_x && !mthca_enable_msi_x(mdev)) mdev->mthca_flags |= MTHCA_FLAG_MSI_X; - else if (msi) { - static int warned; - - if (!warned) { - printk(KERN_WARNING PFX "WARNING: MSI support will be " - "removed from the ib_mthca driver in January 2008.\n"); - printk(KERN_WARNING " If you are using MSI and cannot " - "switch to MSI-X, please tell " - ".\n"); - ++warned; - } - - if (!pci_enable_msi(pdev)) - mdev->mthca_flags |= MTHCA_FLAG_MSI; - } err = mthca_setup_hca(mdev); - if (err == -EBUSY && (mdev->mthca_flags & (MTHCA_FLAG_MSI | MTHCA_FLAG_MSI_X))) { + if (err == -EBUSY && (mdev->mthca_flags & MTHCA_FLAG_MSI_X)) { if (mdev->mthca_flags & MTHCA_FLAG_MSI_X) pci_disable_msix(pdev); - if (mdev->mthca_flags & MTHCA_FLAG_MSI) - pci_disable_msi(pdev); - mdev->mthca_flags &= ~(MTHCA_FLAG_MSI_X | MTHCA_FLAG_MSI); + mdev->mthca_flags &= ~MTHCA_FLAG_MSI_X; err = mthca_setup_hca(mdev); } @@ -1192,8 +1168,6 @@ err_cleanup: err_close: if (mdev->mthca_flags & MTHCA_FLAG_MSI_X) pci_disable_msix(pdev); - if (mdev->mthca_flags & MTHCA_FLAG_MSI) - pci_disable_msi(pdev); mthca_close_hca(mdev); @@ -1246,8 +1220,6 @@ static void __mthca_remove_one(struct pci_dev *pdev) if (mdev->mthca_flags & MTHCA_FLAG_MSI_X) pci_disable_msix(pdev); - if (mdev->mthca_flags & MTHCA_FLAG_MSI) - pci_disable_msi(pdev); ib_dealloc_device(&mdev->ib_dev); mthca_release_regions(pdev, mdev->mthca_flags & -- cgit v1.2.3