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, 307 deletions

diff --git a/gpxe/src/drivers/net/virtio-net.c b/gpxe/src/drivers/net/virtio-net.c
deleted file mode 100644
index 49fcc1c5..00000000
--- a/gpxe/src/drivers/net/virtio-net.c
+++ /dev/null
@@ -1,307 +0,0 @@
-/* virtio-net.c - etherboot driver for virtio network interface
- *
- * (c) Copyright 2008 Bull S.A.S.
- *
- *  Author: Laurent Vivier <Laurent.Vivier@bull.net>
- *
- * some parts from Linux Virtio PCI driver
- *
- *  Copyright IBM Corp. 2007
- *  Authors: Anthony Liguori  <aliguori@us.ibm.com>
- *
- *  some parts from Linux Virtio Ring
- *
- *  Copyright Rusty Russell IBM Corporation 2007
- *
- * This work is licensed under the terms of the GNU GPL, version 2 or later.
- * See the COPYING file in the top-level directory.
- *
- *
- */
-
-#include "etherboot.h"
-#include "nic.h"
-#include "gpxe/virtio-ring.h"
-#include "gpxe/virtio-pci.h"
-#include "virtio-net.h"
-
-#define BUG() do { \
-   printf("BUG: failure at %s:%d/%s()!\n", \
-          __FILE__, __LINE__, __FUNCTION__); \
-   while(1); \
-} while (0)
-#define BUG_ON(condition) do { if (condition) BUG(); } while (0)
-
-/* Ethernet header */
-
-struct eth_hdr {
-   unsigned char dst_addr[ETH_ALEN];
-   unsigned char src_addr[ETH_ALEN];
-   unsigned short type;
-};
-
-struct eth_frame {
-   struct eth_hdr hdr;
-   unsigned char data[ETH_FRAME_LEN];
-};
-
-/* TX: virtio header and eth buffer */
-
-static struct virtio_net_hdr tx_virtio_hdr;
-static struct eth_frame tx_eth_frame;
-
-/* RX: virtio headers and buffers */
-
-#define RX_BUF_NB  6
-static struct virtio_net_hdr rx_hdr[RX_BUF_NB];
-static unsigned char rx_buffer[RX_BUF_NB][ETH_FRAME_LEN];
-
-/* virtio queues and vrings */
-
-enum {
-   RX_INDEX = 0,
-   TX_INDEX,
-   QUEUE_NB
-};
-
-static struct vring_virtqueue virtqueue[QUEUE_NB];
-
-/*
- * virtnet_disable
- *
- * Turn off ethernet interface
- *
- */
-
-static void virtnet_disable(struct nic *nic)
-{
-   int i;
-
-   for (i = 0; i < QUEUE_NB; i++) {
-           vring_disable_cb(&virtqueue[i]);
-           vp_del_vq(nic->ioaddr, i);
-   }
-   vp_reset(nic->ioaddr);
-}
-
-/*
- * virtnet_poll
- *
- * Wait for a frame
- *
- * return true if there is a packet ready to read
- *
- * nic->packet should contain data on return
- * nic->packetlen should contain length of data
- *
- */
-static int virtnet_poll(struct nic *nic, int retrieve)
-{
-   unsigned int len;
-   u16 token;
-   struct virtio_net_hdr *hdr;
-   struct vring_list list[2];
-
-   if (!vring_more_used(&virtqueue[RX_INDEX]))
-           return 0;
-
-   if (!retrieve)
-           return 1;
-
-   token = vring_get_buf(&virtqueue[RX_INDEX], &len);
-
-   BUG_ON(len > sizeof(struct virtio_net_hdr) + ETH_FRAME_LEN);
-
-   hdr = &rx_hdr[token];   /* FIXME: check flags */
-   len -= sizeof(struct virtio_net_hdr);
-
-   nic->packetlen = len;
-   memcpy(nic->packet, (char *)rx_buffer[token], nic->packetlen);
-
-   /* add buffer to desc */
-
-   list[0].addr = (char*)&rx_hdr[token];
-   list[0].length = sizeof(struct virtio_net_hdr);
-   list[1].addr = (char*)&rx_buffer[token];
-   list[1].length = ETH_FRAME_LEN;
-
-   vring_add_buf(&virtqueue[RX_INDEX], list, 0, 2, token, 0);
-   vring_kick(nic->ioaddr, &virtqueue[RX_INDEX], 1);
-
-   return 1;
-}
-
-/*
- *
- * virtnet_transmit
- *
- * Transmit a frame
- *
- */
-
-static void virtnet_transmit(struct nic *nic, const char *destaddr,
-        unsigned int type, unsigned int len, const char *data)
-{
-   struct vring_list list[2];
-
-   /*
-    * from http://www.etherboot.org/wiki/dev/devmanual :
-    *     "You do not need more than one transmit buffer."
-    */
-
-   /* FIXME: initialize header according to vp_get_features() */
-
-   tx_virtio_hdr.flags = 0;
-   tx_virtio_hdr.csum_offset = 0;
-   tx_virtio_hdr.csum_start = 0;
-   tx_virtio_hdr.gso_type = VIRTIO_NET_HDR_GSO_NONE;
-   tx_virtio_hdr.gso_size = 0;
-   tx_virtio_hdr.hdr_len = 0;
-
-   /* add ethernet frame into vring */
-
-   BUG_ON(len > sizeof(tx_eth_frame.data));
-
-   memcpy(tx_eth_frame.hdr.dst_addr, destaddr, ETH_ALEN);
-   memcpy(tx_eth_frame.hdr.src_addr, nic->node_addr, ETH_ALEN);
-   tx_eth_frame.hdr.type = htons(type);
-   memcpy(tx_eth_frame.data, data, len);
-
-   list[0].addr = (char*)&tx_virtio_hdr;
-   list[0].length = sizeof(struct virtio_net_hdr);
-   list[1].addr = (char*)&tx_eth_frame;
-   list[1].length = ETH_FRAME_LEN;
-
-   vring_add_buf(&virtqueue[TX_INDEX], list, 2, 0, 0, 0);
-
-   vring_kick(nic->ioaddr, &virtqueue[TX_INDEX], 1);
-
-   /*
-    * http://www.etherboot.org/wiki/dev/devmanual
-    *
-    *   "You should ensure the packet is fully transmitted
-    *    before returning from this routine"
-    */
-
-   while (!vring_more_used(&virtqueue[TX_INDEX])) {
-           mb();
-           udelay(10);
-   }
-
-   /* free desc */
-
-   (void)vring_get_buf(&virtqueue[TX_INDEX], NULL);
-}
-
-static void virtnet_irq(struct nic *nic __unused, irq_action_t action)
-{
-   switch ( action ) {
-   case DISABLE :
-           vring_disable_cb(&virtqueue[RX_INDEX]);
-           vring_disable_cb(&virtqueue[TX_INDEX]);
-           break;
-   case ENABLE :
-           vring_enable_cb(&virtqueue[RX_INDEX]);
-           vring_enable_cb(&virtqueue[TX_INDEX]);
-           break;
-   case FORCE :
-           break;
-   }
-}
-
-static void provide_buffers(struct nic *nic)
-{
-   int i;
-   struct vring_list list[2];
-
-   for (i = 0; i < RX_BUF_NB; i++) {
-           list[0].addr = (char*)&rx_hdr[i];
-           list[0].length = sizeof(struct virtio_net_hdr);
-           list[1].addr = (char*)&rx_buffer[i];
-           list[1].length = ETH_FRAME_LEN;
-           vring_add_buf(&virtqueue[RX_INDEX], list, 0, 2, i, i);
-   }
-
-   /* nofify */
-
-   vring_kick(nic->ioaddr, &virtqueue[RX_INDEX], i);
-}
-
-static struct nic_operations virtnet_operations = {
-	.connect = dummy_connect,
-	.poll = virtnet_poll,
-	.transmit = virtnet_transmit,
-	.irq = virtnet_irq,
-};
-
-/*
- * virtnet_probe
- *
- * Look for a virtio network adapter
- *
- */
-
-static int virtnet_probe(struct nic *nic, struct pci_device *pci)
-{
-   u32 features;
-   int i;
-
-   /* Mask the bit that says "this is an io addr" */
-
-   nic->ioaddr = pci->ioaddr & ~3;
-
-   /* Copy IRQ from PCI information */
-
-   nic->irqno = pci->irq;
-
-   printf("I/O address 0x%08x, IRQ #%d\n", nic->ioaddr, nic->irqno);
-
-   adjust_pci_device(pci);
-
-   vp_reset(nic->ioaddr);
-
-   features = vp_get_features(nic->ioaddr);
-   if (features & (1 << VIRTIO_NET_F_MAC)) {
-           vp_get(nic->ioaddr, offsetof(struct virtio_net_config, mac),
-                  nic->node_addr, ETH_ALEN);
-           printf("MAC address ");
-	   for (i = 0; i < ETH_ALEN; i++) {
-                   printf("%02x%c", nic->node_addr[i],
-                          (i == ETH_ALEN - 1) ? '\n' : ':');
-           }
-   }
-
-   /* initialize emit/receive queue */
-
-   for (i = 0; i < QUEUE_NB; i++) {
-           virtqueue[i].free_head = 0;
-           virtqueue[i].last_used_idx = 0;
-           memset((char*)&virtqueue[i].queue, 0, sizeof(virtqueue[i].queue));
-           if (vp_find_vq(nic->ioaddr, i, &virtqueue[i]) == -1)
-                   printf("Cannot register queue #%d\n", i);
-   }
-
-   /* provide some receive buffers */
-
-    provide_buffers(nic);
-
-   /* define NIC interface */
-
-    nic->nic_op = &virtnet_operations;
-
-   /* driver is ready */
-
-   vp_set_features(nic->ioaddr, features & (1 << VIRTIO_NET_F_MAC));
-   vp_set_status(nic->ioaddr, VIRTIO_CONFIG_S_DRIVER | VIRTIO_CONFIG_S_DRIVER_OK);
-
-   return 1;
-}
-
-static struct pci_device_id virtnet_nics[] = {
-PCI_ROM(0x1af4, 0x1000, "virtio-net",              "Virtio Network Interface", 0),
-};
-
-PCI_DRIVER ( virtnet_driver, virtnet_nics, PCI_NO_CLASS );
-
-DRIVER ( "VIRTIO-NET", nic_driver, pci_driver, virtnet_driver,
-	 virtnet_probe, virtnet_disable );