gpxe: delete long since obsolete snapshot of gPXE

gPXE has been deprecated in favor of iPXE for many, many years now.
It is much better than users get it directly from the iPXE project,
since we should no longer need any special modifications for Syslinux
use.

Signed-off-by: H. Peter Anvin <hpa@zytor.com>

1 files changed, 0 insertions, 142 deletions

diff --git a/gpxe/src/include/gpxe/virtio-ring.h b/gpxe/src/include/gpxe/virtio-ring.h
deleted file mode 100644
index e96dd371..00000000
--- a/gpxe/src/include/gpxe/virtio-ring.h
+++ /dev/null
@@ -1,142 +0,0 @@
-#ifndef _VIRTIO_RING_H_
-# define _VIRTIO_RING_H_
-#define PAGE_SHIFT (12)
-#define PAGE_SIZE  (1<<PAGE_SHIFT)
-#define PAGE_MASK  (PAGE_SIZE-1)
-
-/* Status byte for guest to report progress, and synchronize features. */
-/* We have seen device and processed generic fields (VIRTIO_CONFIG_F_VIRTIO) */
-#define VIRTIO_CONFIG_S_ACKNOWLEDGE     1
-/* We have found a driver for the device. */
-#define VIRTIO_CONFIG_S_DRIVER          2
-/* Driver has used its parts of the config, and is happy */
-#define VIRTIO_CONFIG_S_DRIVER_OK       4
-/* We've given up on this device. */
-#define VIRTIO_CONFIG_S_FAILED          0x80
-
-#define MAX_QUEUE_NUM      (512)
-
-#define VRING_DESC_F_NEXT  1
-#define VRING_DESC_F_WRITE 2
-
-#define VRING_AVAIL_F_NO_INTERRUPT 1
-
-#define VRING_USED_F_NO_NOTIFY     1
-
-struct vring_desc
-{
-   u64 addr;
-   u32 len;
-   u16 flags;
-   u16 next;
-};
-
-struct vring_avail
-{
-   u16 flags;
-   u16 idx;
-   u16 ring[0];
-};
-
-struct vring_used_elem
-{
-   u32 id;
-   u32 len;
-};
-
-struct vring_used
-{
-   u16 flags;
-   u16 idx;
-   struct vring_used_elem ring[];
-};
-
-struct vring {
-   unsigned int num;
-   struct vring_desc *desc;
-   struct vring_avail *avail;
-   struct vring_used *used;
-};
-
-#define vring_size(num) \
-   (((((sizeof(struct vring_desc) * num) + \
-      (sizeof(struct vring_avail) + sizeof(u16) * num)) \
-         + PAGE_MASK) & ~PAGE_MASK) + \
-         (sizeof(struct vring_used) + sizeof(struct vring_used_elem) * num))
-
-typedef unsigned char virtio_queue_t[PAGE_MASK + vring_size(MAX_QUEUE_NUM)];
-
-struct vring_virtqueue {
-   virtio_queue_t queue;
-   struct vring vring;
-   u16 free_head;
-   u16 last_used_idx;
-   u16 vdata[MAX_QUEUE_NUM];
-   /* PCI */
-   int queue_index;
-};
-
-struct vring_list {
-  char *addr;
-  unsigned int length;
-};
-
-static inline void vring_init(struct vring *vr,
-                         unsigned int num, unsigned char *queue)
-{
-   unsigned int i;
-   unsigned long pa;
-
-        vr->num = num;
-
-   /* physical address of desc must be page aligned */
-
-   pa = virt_to_phys(queue);
-   pa = (pa + PAGE_MASK) & ~PAGE_MASK;
-   vr->desc = phys_to_virt(pa);
-
-        vr->avail = (struct vring_avail *)&vr->desc[num];
-
-   /* physical address of used must be page aligned */
-
-   pa = virt_to_phys(&vr->avail->ring[num]);
-   pa = (pa + PAGE_MASK) & ~PAGE_MASK;
-        vr->used = phys_to_virt(pa);
-
-   for (i = 0; i < num - 1; i++)
-           vr->desc[i].next = i + 1;
-   vr->desc[i].next = 0;
-}
-
-static inline void vring_enable_cb(struct vring_virtqueue *vq)
-{
-   vq->vring.avail->flags &= ~VRING_AVAIL_F_NO_INTERRUPT;
-}
-
-static inline void vring_disable_cb(struct vring_virtqueue *vq)
-{
-   vq->vring.avail->flags |= VRING_AVAIL_F_NO_INTERRUPT;
-}
-
-
-/*
- * vring_more_used
- *
- * is there some used buffers ?
- *
- */
-
-static inline int vring_more_used(struct vring_virtqueue *vq)
-{
-   wmb();
-   return vq->last_used_idx != vq->vring.used->idx;
-}
-
-void vring_detach(struct vring_virtqueue *vq, unsigned int head);
-int vring_get_buf(struct vring_virtqueue *vq, unsigned int *len);
-void vring_add_buf(struct vring_virtqueue *vq, struct vring_list list[],
-                   unsigned int out, unsigned int in,
-                   int index, int num_added);
-void vring_kick(unsigned int ioaddr, struct vring_virtqueue *vq, int num_added);
-
-#endif /* _VIRTIO_RING_H_ */