Shannon Nelson
2023-Aug-28 21:34 UTC
[PATCH net] virtio: kdoc for struct virtio_pci_modern_device
Finally following up to Simon's suggestion for some kdoc attention on struct virtio_pci_modern_device. Link: https://lore.kernel.org/netdev/ZE%2FQS0lnUvxFacjf at corigine.com/ Cc: Simon Horman <simon.horman at corigine.com> Signed-off-by: Shannon Nelson <shannon.nelson at amd.com> --- include/linux/virtio_pci_modern.h | 34 ++++++++++++++++++++----------- 1 file changed, 22 insertions(+), 12 deletions(-) diff --git a/include/linux/virtio_pci_modern.h b/include/linux/virtio_pci_modern.h index 067ac1d789bc..a38c729d1973 100644 --- a/include/linux/virtio_pci_modern.h +++ b/include/linux/virtio_pci_modern.h @@ -12,37 +12,47 @@ struct virtio_pci_modern_common_cfg { __le16 queue_reset; /* read-write */ }; +/** + * struct virtio_pci_modern_device - info for modern PCI virtio + * @pci_dev: Ptr to the PCI device struct + * @common: Position of the common capability in the PCI config + * @device: Device-specific data (non-legacy mode) + * @notify_base: Base of vq notifications (non-legacy mode) + * @notify_pa: Physical base of vq notifications + * @isr: Where to read and clear interrupt + * @notify_len: So we can sanity-check accesses + * @device_len: So we can sanity-check accesses + * @notify_map_cap: Capability for when we need to map notifications per-vq + * @notify_offset_multiplier: Multiply queue_notify_off by this value + * (non-legacy mode). + * @modern_bars: Bitmask of BARs + * @id: Device and vendor id + * @device_id_check: Callback defined before vp_modern_probe() to be used to + * verify the PCI device is a vendor's expected device rather + * than the standard virtio PCI device + * Returns the found device id or ERRNO + * @dma_mask: Optional mask instead of the traditional DMA_BIT_MASK(64), + * for vendor devices with DMA space address limitations + */ struct virtio_pci_modern_device { struct pci_dev *pci_dev; struct virtio_pci_common_cfg __iomem *common; - /* Device-specific data (non-legacy mode) */ void __iomem *device; - /* Base of vq notifications (non-legacy mode). */ void __iomem *notify_base; - /* Physical base of vq notifications */ resource_size_t notify_pa; - /* Where to read and clear interrupt */ u8 __iomem *isr; - /* So we can sanity-check accesses. */ size_t notify_len; size_t device_len; - /* Capability for when we need to map notifications per-vq. */ int notify_map_cap; - /* Multiply queue_notify_off by this value. (non-legacy mode). */ u32 notify_offset_multiplier; - int modern_bars; - struct virtio_device_id id; - /* optional check for vendor virtio device, returns dev_id or -ERRNO */ int (*device_id_check)(struct pci_dev *pdev); - - /* optional mask for devices with limited DMA space */ u64 dma_mask; }; -- 2.17.1
Paolo Abeni
2023-Aug-31 08:39 UTC
[PATCH net] virtio: kdoc for struct virtio_pci_modern_device
Hi, On Mon, 2023-08-28 at 14:34 -0700, Shannon Nelson wrote:> Finally following up to Simon's suggestion for some kdoc attention > on struct virtio_pci_modern_device. > > Link: https://lore.kernel.org/netdev/ZE%2FQS0lnUvxFacjf at corigine.com/ > Cc: Simon Horman <simon.horman at corigine.com> > Signed-off-by: Shannon Nelson <shannon.nelson at amd.com>IMHO this is net-next material and net-next is closed, so please repost this with a proper tag when net-next reopens in ~2w. Thanks, Paolo