Support virtio 1.0 for virtio_pci

virtio 1.0 for virtio_mmio it not yet implemented, but 0.9 devices
continue to work.

1 files changed, 57 insertions, 0 deletions

diff --git a/sys/dev/pci/virtio_pcireg.h b/sys/dev/pci/virtio_pcireg.h
index dc838f38d59..f47ec9c6e7a 100644
--- a/sys/dev/pci/virtio_pcireg.h
+++ b/sys/dev/pci/virtio_pcireg.h
@@ -35,5 +35,62 @@
 
 #define VIRTIO_MSI_NO_VECTOR			0xffff
 
+/*
+ * Virtio 1.0 specific
+ */
+
+struct virtio_pci_cap {
+	uint8_t cap_vndr;	/* Generic PCI field: PCI_CAP_ID_VNDR */
+	uint8_t cap_next;	/* Generic PCI field: next ptr. */
+	uint8_t cap_len;	/* Generic PCI field: capability length */
+	uint8_t cfg_type;	/* Identifies the structure. */
+	uint8_t bar;		/* Where to find it. */
+	uint8_t padding[3];	/* Pad to full dword. */
+	uint32_t offset;	/* Offset within bar. */
+	uint32_t length;	/* Length of the structure, in bytes. */
+} __packed;
+
+/* Common configuration */
+#define VIRTIO_PCI_CAP_COMMON_CFG	1
+/* Notifications */
+#define VIRTIO_PCI_CAP_NOTIFY_CFG	2
+/* ISR Status */
+#define VIRTIO_PCI_CAP_ISR_CFG		3
+/* Device specific configuration */
+#define VIRTIO_PCI_CAP_DEVICE_CFG	4
+/* PCI configuration access */
+#define VIRTIO_PCI_CAP_PCI_CFG		5
+
+struct virtio_pci_notify_cap {
+	struct virtio_pci_cap cap;
+	uint32_t notify_off_multiplier;	/* Multiplier for queue_notify_off. */
+} __packed;
+
+struct virtio_pci_cfg_cap {
+	struct virtio_pci_cap cap;
+	uint8_t pci_cfg_data[4];	/* Data for BAR access. */
+} __packed;
+
+struct virtio_pci_common_cfg {
+	/* About the whole device. */
+	uint32_t device_feature_select;	/* read-write */
+	uint32_t device_feature;	/* read-only for driver */
+	uint32_t driver_feature_select;	/* read-write */
+	uint32_t driver_feature;	/* read-write */
+	uint16_t config_msix_vector;	/* read-write */
+	uint16_t num_queues;		/* read-only for driver */
+	uint8_t device_status;		/* read-write */
+	uint8_t config_generation;	/* read-only for driver */
+
+	/* About a specific virtqueue. */
+	uint16_t queue_select;		/* read-write */
+	uint16_t queue_size;		/* read-write, power of 2, or 0. */
+	uint16_t queue_msix_vector;	/* read-write */
+	uint16_t queue_enable;		/* read-write */
+	uint16_t queue_notify_off;	/* read-only for driver */
+	uint64_t queue_desc;		/* read-write */
+	uint64_t queue_avail;		/* read-write */
+	uint64_t queue_used;		/* read-write */
+} __packed;
 
 #endif /* _DEV_PCI_VIRTIO_PCIREG_H_ */