diff options
Diffstat (limited to 'include/xen')
| -rw-r--r-- | include/xen/interface/io/netif.h | 20 | ||||
| -rw-r--r-- | include/xen/page.h | 1 | ||||
| -rw-r--r-- | include/xen/swiotlb-xen.h | 8 |
3 files changed, 23 insertions, 6 deletions
diff --git a/include/xen/interface/io/netif.h b/include/xen/interface/io/netif.h index 4f20dbc42910..2194322c3c7f 100644 --- a/include/xen/interface/io/netif.h +++ b/include/xen/interface/io/netif.h @@ -161,6 +161,19 @@ */ /* + * "xdp-headroom" is used to request that extra space is added + * for XDP processing. The value is measured in bytes and passed by + * the frontend to be consistent between both ends. + * If the value is greater than zero that means that + * an RX response is going to be passed to an XDP program for processing. + * XEN_NETIF_MAX_XDP_HEADROOM defines the maximum headroom offset in bytes + * + * "feature-xdp-headroom" is set to "1" by the netback side like other features + * so a guest can check if an XDP program can be processed. + */ +#define XEN_NETIF_MAX_XDP_HEADROOM 0x7FFF + +/* * Control ring * ============ * @@ -846,7 +859,8 @@ struct xen_netif_tx_request { #define XEN_NETIF_EXTRA_TYPE_MCAST_ADD (2) /* u.mcast */ #define XEN_NETIF_EXTRA_TYPE_MCAST_DEL (3) /* u.mcast */ #define XEN_NETIF_EXTRA_TYPE_HASH (4) /* u.hash */ -#define XEN_NETIF_EXTRA_TYPE_MAX (5) +#define XEN_NETIF_EXTRA_TYPE_XDP (5) /* u.xdp */ +#define XEN_NETIF_EXTRA_TYPE_MAX (6) /* xen_netif_extra_info_t flags. */ #define _XEN_NETIF_EXTRA_FLAG_MORE (0) @@ -879,6 +893,10 @@ struct xen_netif_extra_info { uint8_t algorithm; uint8_t value[4]; } hash; + struct { + uint16_t headroom; + uint16_t pad[2]; + } xdp; uint16_t pad[3]; } u; }; diff --git a/include/xen/page.h b/include/xen/page.h index df6d6b6ec66e..285677b42943 100644 --- a/include/xen/page.h +++ b/include/xen/page.h @@ -24,7 +24,6 @@ #define XEN_PFN_DOWN(x) ((x) >> XEN_PAGE_SHIFT) #define XEN_PFN_UP(x) (((x) + XEN_PAGE_SIZE-1) >> XEN_PAGE_SHIFT) -#define XEN_PFN_PHYS(x) ((phys_addr_t)(x) << XEN_PAGE_SHIFT) #include <asm/xen/page.h> diff --git a/include/xen/swiotlb-xen.h b/include/xen/swiotlb-xen.h index ffc0d3902b71..d5eaf9d682b8 100644 --- a/include/xen/swiotlb-xen.h +++ b/include/xen/swiotlb-xen.h @@ -4,10 +4,10 @@ #include <linux/swiotlb.h> -void xen_dma_sync_for_cpu(dma_addr_t handle, phys_addr_t paddr, size_t size, - enum dma_data_direction dir); -void xen_dma_sync_for_device(dma_addr_t handle, phys_addr_t paddr, size_t size, - enum dma_data_direction dir); +void xen_dma_sync_for_cpu(struct device *dev, dma_addr_t handle, + size_t size, enum dma_data_direction dir); +void xen_dma_sync_for_device(struct device *dev, dma_addr_t handle, + size_t size, enum dma_data_direction dir); extern int xen_swiotlb_init(int verbose, bool early); extern const struct dma_map_ops xen_swiotlb_dma_ops; |