diff options
Diffstat (limited to 'drivers/infiniband/hw/mthca/mthca_main.c')
| -rw-r--r-- | drivers/infiniband/hw/mthca/mthca_main.c | 77 |
1 files changed, 46 insertions, 31 deletions
diff --git a/drivers/infiniband/hw/mthca/mthca_main.c b/drivers/infiniband/hw/mthca/mthca_main.c index 76fed7545c5..04c1520524c 100644 --- a/drivers/infiniband/hw/mthca/mthca_main.c +++ b/drivers/infiniband/hw/mthca/mthca_main.c @@ -61,7 +61,7 @@ MODULE_PARM_DESC(debug_level, "Enable debug tracing if > 0"); #ifdef CONFIG_PCI_MSI -static int msi_x = 0; +static int msi_x = 1; module_param(msi_x, int, 0444); MODULE_PARM_DESC(msi_x, "attempt to use MSI-X if nonzero"); @@ -833,14 +833,19 @@ static int mthca_setup_hca(struct mthca_dev *dev) err = mthca_NOP(dev, &status); if (err || status) { - mthca_err(dev, "NOP command failed to generate interrupt (IRQ %d), aborting.\n", - dev->mthca_flags & MTHCA_FLAG_MSI_X ? - dev->eq_table.eq[MTHCA_EQ_CMD].msi_x_vector : - dev->pdev->irq); - if (dev->mthca_flags & (MTHCA_FLAG_MSI | MTHCA_FLAG_MSI_X)) - mthca_err(dev, "Try again with MSI/MSI-X disabled.\n"); - else + if (dev->mthca_flags & (MTHCA_FLAG_MSI | 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"); + } else { + mthca_err(dev, "NOP command failed to generate interrupt " + "(IRQ %d), aborting.\n", + dev->pdev->irq); mthca_err(dev, "BIOS or ACPI interrupt routing problem?\n"); + } goto err_cmd_poll; } @@ -1115,24 +1120,6 @@ static int __mthca_init_one(struct pci_dev *pdev, int hca_type) goto err_free_dev; } - 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 " - "<general@lists.openfabrics.org>.\n"); - ++warned; - } - - if (!pci_enable_msi(pdev)) - mdev->mthca_flags |= MTHCA_FLAG_MSI; - } - if (mthca_cmd_init(mdev)) { mthca_err(mdev, "Failed to init command interface, aborting.\n"); goto err_free_dev; @@ -1156,7 +1143,35 @@ static int __mthca_init_one(struct pci_dev *pdev, int hca_type) mthca_warn(mdev, "If you have problems, try updating your HCA FW.\n"); } + 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 " + "<general@lists.openfabrics.org>.\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 (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); + + err = mthca_setup_hca(mdev); + } + if (err) goto err_close; @@ -1192,17 +1207,17 @@ err_cleanup: mthca_cleanup_uar_table(mdev); 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); err_cmd: mthca_cmd_cleanup(mdev); err_free_dev: - 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); err_free_res: |