diff options
Diffstat (limited to 'driver/ioctl.c')
| -rw-r--r-- | driver/ioctl.c | 30 |
1 files changed, 27 insertions, 3 deletions
diff --git a/driver/ioctl.c b/driver/ioctl.c index e003476..67cdc52 100644 --- a/driver/ioctl.c +++ b/driver/ioctl.c @@ -433,7 +433,6 @@ static int ioctl_version(pcidriver_privdata_t *privdata, unsigned long arg) return 0; } - /** * * Gets current device and driver configuration @@ -448,6 +447,7 @@ static int ioctl_device_state(pcidriver_privdata_t *privdata, unsigned long arg) info = (pcilib_device_state_t) { .iommu = iommu_present(privdata->pdev->dev.bus), + .mps = pcidriver_pcie_get_mps(privdata->pdev), .dma_mask = privdata->pdev->dma_mask }; @@ -468,7 +468,7 @@ static int ioctl_set_dma_mask(pcidriver_privdata_t *privdata, unsigned long arg) { int err; - if ((arg < 24) && (arg > 63)) + if ((arg < 24) || (arg > 64)) return -EINVAL; err = pci_set_dma_mask(privdata->pdev, DMA_BIT_MASK(arg)); @@ -477,8 +477,29 @@ static int ioctl_set_dma_mask(pcidriver_privdata_t *privdata, unsigned long arg) return err; } - printk(KERN_ERR "pci_set_dma_mask(%lu) successeded\n", arg); + return 0; +} + +/** + * + * Sets Max Payload Size. + * + * @param arg Not a pointer, but payload size in bits + * + */ +static int ioctl_set_mps(pcidriver_privdata_t *privdata, unsigned long arg) +{ + int err; + if ((arg != 128) && (arg != 256) && (arg != 512)) + return -EINVAL; + + err = pcidriver_pcie_set_mps(privdata->pdev, arg); + if (err < 0) { + printk(KERN_ERR "pcie_set_mps(%lu) failed\n", arg); + return err; + } + return 0; } @@ -551,6 +572,9 @@ long pcidriver_ioctl(struct file *filp, unsigned int cmd, unsigned long arg) case PCIDRIVER_IOC_DMA_MASK: return ioctl_set_dma_mask(privdata, arg); + case PCIDRIVER_IOC_MPS: + return ioctl_set_mps(privdata, arg); + default: return -EINVAL; } |