diff options
Diffstat (limited to 'drivers/misc/genwqe/card_utils.c')
| -rw-r--r-- | drivers/misc/genwqe/card_utils.c | 20 |
1 files changed, 16 insertions, 4 deletions
diff --git a/drivers/misc/genwqe/card_utils.c b/drivers/misc/genwqe/card_utils.c index 62cc6bb3f62e..a6400f09229c 100644 --- a/drivers/misc/genwqe/card_utils.c +++ b/drivers/misc/genwqe/card_utils.c @@ -53,12 +53,17 @@ */ int __genwqe_writeq(struct genwqe_dev *cd, u64 byte_offs, u64 val) { + struct pci_dev *pci_dev = cd->pci_dev; + if (cd->err_inject & GENWQE_INJECT_HARDWARE_FAILURE) return -EIO; if (cd->mmio == NULL) return -EIO; + if (pci_channel_offline(pci_dev)) + return -EIO; + __raw_writeq((__force u64)cpu_to_be64(val), cd->mmio + byte_offs); return 0; } @@ -99,12 +104,17 @@ u64 __genwqe_readq(struct genwqe_dev *cd, u64 byte_offs) */ int __genwqe_writel(struct genwqe_dev *cd, u64 byte_offs, u32 val) { + struct pci_dev *pci_dev = cd->pci_dev; + if (cd->err_inject & GENWQE_INJECT_HARDWARE_FAILURE) return -EIO; if (cd->mmio == NULL) return -EIO; + if (pci_channel_offline(pci_dev)) + return -EIO; + __raw_writel((__force u32)cpu_to_be32(val), cd->mmio + byte_offs); return 0; } @@ -718,10 +728,12 @@ int genwqe_set_interrupt_capability(struct genwqe_dev *cd, int count) int rc; struct pci_dev *pci_dev = cd->pci_dev; - rc = pci_enable_msi_exact(pci_dev, count); - if (rc == 0) - cd->flags |= GENWQE_FLAG_MSI_ENABLED; - return rc; + rc = pci_enable_msi_range(pci_dev, 1, count); + if (rc < 0) + return rc; + + cd->flags |= GENWQE_FLAG_MSI_ENABLED; + return 0; } /** |