Add qemu 2.4.0

[kvmfornfv.git] / qemu / roms / ipxe / src / arch / i386 / drivers / net / undi.c

diff --git a/qemu/roms/ipxe/src/arch/i386/drivers/net/undi.c b/qemu/roms/ipxe/src/arch/i386/drivers/net/undi.c
new file mode 100644 (file)
index 0000000..2bc5482
--- /dev/null
+++ b/qemu/roms/ipxe/src/arch/i386/drivers/net/undi.c
@@ -0,0 +1,149 @@
+/*
+ * Copyright (C) 2007 Michael Brown <mbrown@fensystems.co.uk>.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of the
+ * License, or any later version.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+ * 02110-1301, USA.
+ */
+
+FILE_LICENCE ( GPL2_OR_LATER );
+
+#include <stdint.h>
+#include <stdlib.h>
+#include <stdio.h>
+#include <string.h>
+#include <ipxe/pci.h>
+#include <undi.h>
+#include <undirom.h>
+#include <undiload.h>
+#include <undinet.h>
+#include <undipreload.h>
+
+/** @file
+ *
+ * UNDI PCI driver
+ *
+ */
+
+/**
+ * Find UNDI ROM for PCI device
+ *
+ * @v pci              PCI device
+ * @ret undirom                UNDI ROM, or NULL
+ *
+ * Try to find a driver for this device.  Try an exact match on the
+ * ROM address first, then fall back to a vendor/device ID match only
+ */
+static struct undi_rom * undipci_find_rom ( struct pci_device *pci ) {
+       struct undi_rom *undirom;
+       unsigned long rombase;
+       
+       rombase = pci_bar_start ( pci, PCI_ROM_ADDRESS );
+       undirom = undirom_find_pci ( pci->vendor, pci->device, rombase );
+       if ( ! undirom )
+               undirom = undirom_find_pci ( pci->vendor, pci->device, 0 );
+       return undirom;
+}
+
+/**
+ * Probe PCI device
+ *
+ * @v pci              PCI device
+ * @v id               PCI ID
+ * @ret rc             Return status code
+ */
+static int undipci_probe ( struct pci_device *pci ) {
+       struct undi_device *undi;
+       struct undi_rom *undirom;
+       int rc;
+
+       /* Ignore non-network devices */
+       if ( PCI_BASE_CLASS ( pci->class ) != PCI_BASE_CLASS_NETWORK )
+               return -ENOTTY;
+
+       /* Allocate UNDI device structure */
+       undi = zalloc ( sizeof ( *undi ) );
+       if ( ! undi )
+               return -ENOMEM;
+       pci_set_drvdata ( pci, undi );
+
+       /* Find/create our pixie */
+       if ( preloaded_undi.pci_busdevfn == pci->busdevfn ) {
+               /* Claim preloaded UNDI device */
+               DBGC ( undi, "UNDI %p using preloaded UNDI device\n", undi );
+               memcpy ( undi, &preloaded_undi, sizeof ( *undi ) );
+               memset ( &preloaded_undi, 0, sizeof ( preloaded_undi ) );
+       } else {
+               /* Find UNDI ROM for PCI device */
+               if ( ! ( undirom = undipci_find_rom ( pci ) ) ) {
+                       rc = -ENODEV;
+                       goto err_find_rom;
+               }
+
+               /* Call UNDI ROM loader to create pixie */
+               if ( ( rc = undi_load_pci ( undi, undirom,
+                                           pci->busdevfn ) ) != 0 ) {
+                       goto err_load_pci;
+               }
+       }
+
+       /* Add to device hierarchy */
+       snprintf ( undi->dev.name, sizeof ( undi->dev.name ),
+                  "UNDI-%s", pci->dev.name );
+       memcpy ( &undi->dev.desc, &pci->dev.desc, sizeof ( undi->dev.desc ) );
+       undi->dev.parent = &pci->dev;
+       INIT_LIST_HEAD ( &undi->dev.children );
+       list_add ( &undi->dev.siblings, &pci->dev.children );
+
+       /* Create network device */
+       if ( ( rc = undinet_probe ( undi ) ) != 0 )
+               goto err_undinet_probe;
+       
+       return 0;
+
+ err_undinet_probe:
+       undi_unload ( undi );
+       list_del ( &undi->dev.siblings );
+ err_find_rom:
+ err_load_pci:
+       free ( undi );
+       pci_set_drvdata ( pci, NULL );
+       return rc;
+}
+
+/**
+ * Remove PCI device
+ *
+ * @v pci      PCI device
+ */
+static void undipci_remove ( struct pci_device *pci ) {
+       struct undi_device *undi = pci_get_drvdata ( pci );
+
+       undinet_remove ( undi );
+       undi_unload ( undi );
+       list_del ( &undi->dev.siblings );
+       free ( undi );
+       pci_set_drvdata ( pci, NULL );
+}
+
+static struct pci_device_id undipci_nics[] = {
+PCI_ROM ( 0xffff, 0xffff, "undipci", "UNDI (PCI)", 0 ),
+};
+
+struct pci_driver undipci_driver __pci_driver_fallback = {
+       .ids = undipci_nics,
+       .id_count = ( sizeof ( undipci_nics ) / sizeof ( undipci_nics[0] ) ),
+       .probe = undipci_probe,
+       .remove = undipci_remove,
+};