diff options
Diffstat (limited to 'qemu/roms/ipxe/src/arch/i386/drivers/net')
| -rw-r--r-- | qemu/roms/ipxe/src/arch/i386/drivers/net/undi.c | 146 | ||||
| -rw-r--r-- | qemu/roms/ipxe/src/arch/i386/drivers/net/undiisr.S | 87 | ||||
| -rw-r--r-- | qemu/roms/ipxe/src/arch/i386/drivers/net/undiload.c | 184 | ||||
| -rw-r--r-- | qemu/roms/ipxe/src/arch/i386/drivers/net/undinet.c | 822 | ||||
| -rw-r--r-- | qemu/roms/ipxe/src/arch/i386/drivers/net/undionly.c | 142 | ||||
| -rw-r--r-- | qemu/roms/ipxe/src/arch/i386/drivers/net/undipreload.c | 42 | ||||
| -rw-r--r-- | qemu/roms/ipxe/src/arch/i386/drivers/net/undirom.c | 235 |
7 files changed, 0 insertions, 1658 deletions
diff --git a/qemu/roms/ipxe/src/arch/i386/drivers/net/undi.c b/qemu/roms/ipxe/src/arch/i386/drivers/net/undi.c deleted file mode 100644 index 9820cf629..000000000 --- a/qemu/roms/ipxe/src/arch/i386/drivers/net/undi.c +++ /dev/null @@ -1,146 +0,0 @@ -/* - * 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; - - /* 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] ) ), - .class = PCI_CLASS_ID ( PCI_CLASS_NETWORK, PCI_ANY_ID, PCI_ANY_ID ), - .probe = undipci_probe, - .remove = undipci_remove, -}; diff --git a/qemu/roms/ipxe/src/arch/i386/drivers/net/undiisr.S b/qemu/roms/ipxe/src/arch/i386/drivers/net/undiisr.S deleted file mode 100644 index b27effe1d..000000000 --- a/qemu/roms/ipxe/src/arch/i386/drivers/net/undiisr.S +++ /dev/null @@ -1,87 +0,0 @@ -FILE_LICENCE ( GPL2_OR_LATER ) - -#define PXENV_UNDI_ISR 0x0014 -#define PXENV_UNDI_ISR_IN_START 1 -#define PXENV_UNDI_ISR_OUT_OURS 0 -#define PXENV_UNDI_ISR_OUT_NOT_OURS 1 - -#define IRQ_PIC_CUTOFF 8 -#define ICR_EOI_NON_SPECIFIC 0x20 -#define PIC1_ICR 0x20 -#define PIC2_ICR 0xa0 - - .text - .arch i386 - .code16 - - .section ".text16", "ax", @progbits - .globl undiisr -undiisr: - - /* Preserve registers */ - pushw %ds - pushw %es - pushw %fs - pushw %gs - pushfl - pushal - - /* Set up our segment registers */ - movw %cs:rm_ds, %ax - movw %ax, %ds - - /* Check that we have an UNDI entry point */ - cmpw $0, pxeparent_entry_point - je chain - - /* Issue UNDI API call */ - movw %ax, %es - movw $undinet_params, %di - movw $PXENV_UNDI_ISR, %bx - movw $PXENV_UNDI_ISR_IN_START, funcflag - pushw %es - pushw %di - pushw %bx - lcall *pxeparent_entry_point - cli /* Just in case */ - addw $6, %sp - cmpw $PXENV_UNDI_ISR_OUT_OURS, funcflag - jne eoi - -trig: /* Record interrupt occurence */ - incb undiisr_trigger_count - -eoi: /* Send EOI */ - movb $ICR_EOI_NON_SPECIFIC, %al - cmpb $IRQ_PIC_CUTOFF, undiisr_irq - jb 1f - outb %al, $PIC2_ICR -1: outb %al, $PIC1_ICR - jmp exit - -chain: /* Chain to next handler */ - pushfw - lcall *undiisr_next_handler - -exit: /* Restore registers and return */ - cli - popal - movzwl %sp, %esp - addr32 movl -20(%esp), %esp /* %esp isn't restored by popal */ - popfl - popw %gs - popw %fs - popw %es - popw %ds - iret - - .section ".data16", "aw", @progbits -undinet_params: -status: .word 0 -funcflag: .word 0 -bufferlength: .word 0 -framelength: .word 0 -frameheaderlength: .word 0 -frame: .word 0, 0 -prottype: .byte 0 -pkttype: .byte 0 diff --git a/qemu/roms/ipxe/src/arch/i386/drivers/net/undiload.c b/qemu/roms/ipxe/src/arch/i386/drivers/net/undiload.c deleted file mode 100644 index 7160ee384..000000000 --- a/qemu/roms/ipxe/src/arch/i386/drivers/net/undiload.c +++ /dev/null @@ -1,184 +0,0 @@ -/* - * 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. - * - * You can also choose to distribute this program under the terms of - * the Unmodified Binary Distribution Licence (as given in the file - * COPYING.UBDL), provided that you have satisfied its requirements. - */ - -FILE_LICENCE ( GPL2_OR_LATER_OR_UBDL ); - -#include <stdint.h> -#include <stdlib.h> -#include <string.h> -#include <pxe.h> -#include <realmode.h> -#include <bios.h> -#include <pnpbios.h> -#include <basemem.h> -#include <ipxe/pci.h> -#include <undi.h> -#include <undirom.h> -#include <undiload.h> - -/** @file - * - * UNDI load/unload - * - */ - -/* Disambiguate the various error causes */ -#define EINFO_EUNDILOAD \ - __einfo_uniqify ( EINFO_EPLATFORM, 0x01, \ - "UNDI loader error" ) -#define EUNDILOAD( status ) EPLATFORM ( EINFO_EUNDILOAD, status ) - -/** Parameter block for calling UNDI loader */ -static struct s_UNDI_LOADER __bss16 ( undi_loader ); -#define undi_loader __use_data16 ( undi_loader ) - -/** UNDI loader entry point */ -static SEGOFF16_t __bss16 ( undi_loader_entry ); -#define undi_loader_entry __use_data16 ( undi_loader_entry ) - -/** - * Call UNDI loader to create a pixie - * - * @v undi UNDI device - * @v undirom UNDI ROM - * @ret rc Return status code - */ -int undi_load ( struct undi_device *undi, struct undi_rom *undirom ) { - struct s_PXE ppxe; - unsigned int fbms_seg; - uint16_t exit; - int rc; - - /* Only one UNDI instance may be loaded at any given time */ - if ( undi_loader_entry.segment ) { - DBG ( "UNDI %p cannot load multiple instances\n", undi ); - return -EBUSY; - } - - /* Set up START_UNDI parameters */ - memset ( &undi_loader, 0, sizeof ( undi_loader ) ); - undi_loader.AX = undi->pci_busdevfn; - undi_loader.BX = undi->isapnp_csn; - undi_loader.DX = undi->isapnp_read_port; - undi_loader.ES = BIOS_SEG; - undi_loader.DI = find_pnp_bios(); - - /* Allocate base memory for PXE stack */ - undi->restore_fbms = get_fbms(); - fbms_seg = ( undi->restore_fbms << 6 ); - fbms_seg -= ( ( undirom->code_size + 0x0f ) >> 4 ); - undi_loader.UNDI_CS = fbms_seg; - fbms_seg -= ( ( undirom->data_size + 0x0f ) >> 4 ); - undi_loader.UNDI_DS = fbms_seg; - - /* Debug info */ - DBGC ( undi, "UNDI %p loading UNDI ROM %p to CS %04x DS %04x for ", - undi, undirom, undi_loader.UNDI_CS, undi_loader.UNDI_DS ); - if ( undi->pci_busdevfn != UNDI_NO_PCI_BUSDEVFN ) { - unsigned int bus = ( undi->pci_busdevfn >> 8 ); - unsigned int devfn = ( undi->pci_busdevfn & 0xff ); - DBGC ( undi, "PCI %02x:%02x.%x\n", - bus, PCI_SLOT ( devfn ), PCI_FUNC ( devfn ) ); - } - if ( undi->isapnp_csn != UNDI_NO_ISAPNP_CSN ) { - DBGC ( undi, "ISAPnP(%04x) CSN %04x\n", - undi->isapnp_read_port, undi->isapnp_csn ); - } - - /* Call loader */ - undi_loader_entry = undirom->loader_entry; - __asm__ __volatile__ ( REAL_CODE ( "pushl %%ebp\n\t" /* gcc bug */ - "pushw %%ds\n\t" - "pushw %%ax\n\t" - "lcall *undi_loader_entry\n\t" - "popl %%ebp\n\t" /* discard */ - "popl %%ebp\n\t" /* gcc bug */ ) - : "=a" ( exit ) - : "a" ( __from_data16 ( &undi_loader ) ) - : "ebx", "ecx", "edx", "esi", "edi" ); - - if ( exit != PXENV_EXIT_SUCCESS ) { - /* Clear entry point */ - memset ( &undi_loader_entry, 0, sizeof ( undi_loader_entry ) ); - - rc = -EUNDILOAD ( undi_loader.Status ); - DBGC ( undi, "UNDI %p loader failed: %s\n", - undi, strerror ( rc ) ); - return rc; - } - - /* Populate PXE device structure */ - undi->pxenv = undi_loader.PXENVptr; - undi->ppxe = undi_loader.PXEptr; - copy_from_real ( &ppxe, undi->ppxe.segment, undi->ppxe.offset, - sizeof ( ppxe ) ); - undi->entry = ppxe.EntryPointSP; - DBGC ( undi, "UNDI %p loaded PXENV+ %04x:%04x !PXE %04x:%04x " - "entry %04x:%04x\n", undi, undi->pxenv.segment, - undi->pxenv.offset, undi->ppxe.segment, undi->ppxe.offset, - undi->entry.segment, undi->entry.offset ); - - /* Update free base memory counter */ - undi->fbms = ( fbms_seg >> 6 ); - set_fbms ( undi->fbms ); - DBGC ( undi, "UNDI %p using [%d,%d) kB of base memory\n", - undi, undi->fbms, undi->restore_fbms ); - - return 0; -} - -/** - * Unload a pixie - * - * @v undi UNDI device - * @ret rc Return status code - * - * Erases the PXENV+ and !PXE signatures, and frees the used base - * memory (if possible). - */ -int undi_unload ( struct undi_device *undi ) { - static uint32_t dead = 0xdeaddead; - - DBGC ( undi, "UNDI %p unloading\n", undi ); - - /* Clear entry point */ - memset ( &undi_loader_entry, 0, sizeof ( undi_loader_entry ) ); - - /* Erase signatures */ - if ( undi->pxenv.segment ) - put_real ( dead, undi->pxenv.segment, undi->pxenv.offset ); - if ( undi->ppxe.segment ) - put_real ( dead, undi->ppxe.segment, undi->ppxe.offset ); - - /* Free base memory, if possible */ - if ( undi->fbms == get_fbms() ) { - DBGC ( undi, "UNDI %p freeing [%d,%d) kB of base memory\n", - undi, undi->fbms, undi->restore_fbms ); - set_fbms ( undi->restore_fbms ); - return 0; - } else { - DBGC ( undi, "UNDI %p leaking [%d,%d) kB of base memory\n", - undi, undi->fbms, undi->restore_fbms ); - return -EBUSY; - } -} diff --git a/qemu/roms/ipxe/src/arch/i386/drivers/net/undinet.c b/qemu/roms/ipxe/src/arch/i386/drivers/net/undinet.c deleted file mode 100644 index 6450665ff..000000000 --- a/qemu/roms/ipxe/src/arch/i386/drivers/net/undinet.c +++ /dev/null @@ -1,822 +0,0 @@ -/* - * 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 <string.h> -#include <unistd.h> -#include <byteswap.h> -#include <pxe.h> -#include <realmode.h> -#include <pic8259.h> -#include <biosint.h> -#include <pnpbios.h> -#include <basemem_packet.h> -#include <ipxe/io.h> -#include <ipxe/iobuf.h> -#include <ipxe/netdevice.h> -#include <ipxe/if_ether.h> -#include <ipxe/ethernet.h> -#include <ipxe/profile.h> -#include <undi.h> -#include <undinet.h> -#include <pxeparent.h> - -/** @file - * - * UNDI network device driver - * - */ - -/** An UNDI NIC */ -struct undi_nic { - /** Device supports IRQs */ - int irq_supported; - /** Assigned IRQ number */ - unsigned int irq; - /** Currently processing ISR */ - int isr_processing; - /** Bug workarounds */ - int hacks; -}; - -/** - * @defgroup undi_hacks UNDI workarounds - * @{ - */ - -/** Work around Etherboot 5.4 bugs */ -#define UNDI_HACK_EB54 0x0001 - -/** @} */ - -/** Maximum number of times to retry PXENV_UNDI_INITIALIZE */ -#define UNDI_INITIALIZE_RETRY_MAX 10 - -/** Delay between retries of PXENV_UNDI_INITIALIZE */ -#define UNDI_INITIALIZE_RETRY_DELAY_MS 200 - -/** Maximum number of received packets per poll */ -#define UNDI_RX_QUOTA 4 - -/** Alignment of received frame payload */ -#define UNDI_RX_ALIGN 16 - -static void undinet_close ( struct net_device *netdev ); - -/** Address of UNDI entry point */ -static SEGOFF16_t undinet_entry; - -/** Transmit profiler */ -static struct profiler undinet_tx_profiler __profiler = - { .name = "undinet.tx" }; - -/** Transmit call profiler */ -static struct profiler undinet_tx_call_profiler __profiler = - { .name = "undinet.tx_call" }; - -/** IRQ profiler */ -static struct profiler undinet_irq_profiler __profiler = - { .name = "undinet.irq" }; - -/** ISR call profiler */ -static struct profiler undinet_isr_call_profiler __profiler = - { .name = "undinet.isr_call" }; - -/** Receive profiler */ -static struct profiler undinet_rx_profiler __profiler = - { .name = "undinet.rx" }; - -/***************************************************************************** - * - * UNDI interrupt service routine - * - ***************************************************************************** - */ - -/** - * UNDI interrupt service routine - * - * The UNDI ISR increments a counter (@c trigger_count) and exits. - */ -extern void undiisr ( void ); - -/** IRQ number */ -uint8_t __data16 ( undiisr_irq ); -#define undiisr_irq __use_data16 ( undiisr_irq ) - -/** IRQ chain vector */ -struct segoff __data16 ( undiisr_next_handler ); -#define undiisr_next_handler __use_data16 ( undiisr_next_handler ) - -/** IRQ trigger count */ -volatile uint8_t __data16 ( undiisr_trigger_count ) = 0; -#define undiisr_trigger_count __use_data16 ( undiisr_trigger_count ) - -/** Last observed trigger count */ -static unsigned int last_trigger_count = 0; - -/** - * Hook UNDI interrupt service routine - * - * @v irq IRQ number - */ -static void undinet_hook_isr ( unsigned int irq ) { - - assert ( irq <= IRQ_MAX ); - assert ( undiisr_irq == 0 ); - - undiisr_irq = irq; - hook_bios_interrupt ( IRQ_INT ( irq ), - ( ( unsigned int ) undiisr ), - &undiisr_next_handler ); -} - -/** - * Unhook UNDI interrupt service routine - * - * @v irq IRQ number - */ -static void undinet_unhook_isr ( unsigned int irq ) { - - assert ( irq <= IRQ_MAX ); - - unhook_bios_interrupt ( IRQ_INT ( irq ), - ( ( unsigned int ) undiisr ), - &undiisr_next_handler ); - undiisr_irq = 0; -} - -/** - * Test to see if UNDI ISR has been triggered - * - * @ret triggered ISR has been triggered since last check - */ -static int undinet_isr_triggered ( void ) { - unsigned int this_trigger_count; - - /* Read trigger_count. Do this only once; it is volatile */ - this_trigger_count = undiisr_trigger_count; - - if ( this_trigger_count == last_trigger_count ) { - /* Not triggered */ - return 0; - } else { - /* Triggered */ - last_trigger_count = this_trigger_count; - return 1; - } -} - -/***************************************************************************** - * - * UNDI network device interface - * - ***************************************************************************** - */ - -/** UNDI transmit buffer descriptor */ -static struct s_PXENV_UNDI_TBD __data16 ( undinet_tbd ); -#define undinet_tbd __use_data16 ( undinet_tbd ) - -/** UNDI transmit destination address */ -static uint8_t __data16_array ( undinet_destaddr, [ETH_ALEN] ); -#define undinet_destaddr __use_data16 ( undinet_destaddr ) - -/** - * Transmit packet - * - * @v netdev Network device - * @v iobuf I/O buffer - * @ret rc Return status code - */ -static int undinet_transmit ( struct net_device *netdev, - struct io_buffer *iobuf ) { - struct undi_nic *undinic = netdev->priv; - struct s_PXENV_UNDI_TRANSMIT undi_transmit; - const void *ll_dest; - const void *ll_source; - uint16_t net_proto; - unsigned int flags; - uint8_t protocol; - size_t len; - int rc; - - /* Start profiling */ - profile_start ( &undinet_tx_profiler ); - - /* Technically, we ought to make sure that the previous - * transmission has completed before we re-use the buffer. - * However, many PXE stacks (including at least some Intel PXE - * stacks and Etherboot 5.4) fail to generate TX completions. - * In practice this won't be a problem, since our TX datapath - * has a very low packet volume and we can get away with - * assuming that a TX will be complete by the time we want to - * transmit the next packet. - */ - - /* Some PXE stacks are unable to cope with P_UNKNOWN, and will - * always try to prepend a link-layer header. Work around - * these stacks by stripping the existing link-layer header - * and allowing the PXE stack to (re)construct the link-layer - * header itself. - */ - if ( ( rc = eth_pull ( netdev, iobuf, &ll_dest, &ll_source, - &net_proto, &flags ) ) != 0 ) { - DBGC ( undinic, "UNDINIC %p could not strip Ethernet header: " - "%s\n", undinic, strerror ( rc ) ); - return rc; - } - memcpy ( undinet_destaddr, ll_dest, sizeof ( undinet_destaddr ) ); - switch ( net_proto ) { - case htons ( ETH_P_IP ) : - protocol = P_IP; - break; - case htons ( ETH_P_ARP ) : - protocol = P_ARP; - break; - case htons ( ETH_P_RARP ) : - protocol = P_RARP; - break; - default: - /* Unknown protocol; restore the original link-layer header */ - iob_push ( iobuf, sizeof ( struct ethhdr ) ); - protocol = P_UNKNOWN; - break; - } - - /* Copy packet to UNDI I/O buffer */ - len = iob_len ( iobuf ); - if ( len > sizeof ( basemem_packet ) ) - len = sizeof ( basemem_packet ); - memcpy ( &basemem_packet, iobuf->data, len ); - - /* Create PXENV_UNDI_TRANSMIT data structure */ - memset ( &undi_transmit, 0, sizeof ( undi_transmit ) ); - undi_transmit.Protocol = protocol; - undi_transmit.XmitFlag = ( ( flags & LL_BROADCAST ) ? - XMT_BROADCAST : XMT_DESTADDR ); - undi_transmit.DestAddr.segment = rm_ds; - undi_transmit.DestAddr.offset = __from_data16 ( &undinet_destaddr ); - undi_transmit.TBD.segment = rm_ds; - undi_transmit.TBD.offset = __from_data16 ( &undinet_tbd ); - - /* Create PXENV_UNDI_TBD data structure */ - undinet_tbd.ImmedLength = len; - undinet_tbd.Xmit.segment = rm_ds; - undinet_tbd.Xmit.offset = __from_data16 ( basemem_packet ); - - /* Issue PXE API call */ - profile_start ( &undinet_tx_call_profiler ); - if ( ( rc = pxeparent_call ( undinet_entry, PXENV_UNDI_TRANSMIT, - &undi_transmit, - sizeof ( undi_transmit ) ) ) != 0 ) - goto done; - profile_stop ( &undinet_tx_call_profiler ); - - /* Free I/O buffer */ - netdev_tx_complete ( netdev, iobuf ); - profile_stop ( &undinet_tx_profiler ); - done: - return rc; -} - -/** - * Poll for received packets - * - * @v netdev Network device - * - * Fun, fun, fun. UNDI drivers don't use polling; they use - * interrupts. We therefore cheat and pretend that an interrupt has - * occurred every time undinet_poll() is called. This isn't too much - * of a hack; PCI devices share IRQs and so the first thing that a - * proper ISR should do is call PXENV_UNDI_ISR to determine whether or - * not the UNDI NIC generated the interrupt; there is no harm done by - * spurious calls to PXENV_UNDI_ISR. Similarly, we wouldn't be - * handling them any more rapidly than the usual rate of - * undinet_poll() being called even if we did implement a full ISR. - * So it should work. Ha! - * - * Addendum (21/10/03). Some cards don't play nicely with this trick, - * so instead of doing it the easy way we have to go to all the hassle - * of installing a genuine interrupt service routine and dealing with - * the wonderful 8259 Programmable Interrupt Controller. Joy. - * - * Addendum (10/07/07). When doing things such as iSCSI boot, in - * which we have to co-operate with a running OS, we can't get away - * with the "ISR-just-increments-a-counter-and-returns" trick at all, - * because it involves tying up the PIC for far too long, and other - * interrupt-dependent components (e.g. local disks) start breaking. - * We therefore implement a "proper" ISR which calls PXENV_UNDI_ISR - * from within interrupt context in order to deassert the device - * interrupt, and sends EOI if applicable. - */ -static void undinet_poll ( struct net_device *netdev ) { - struct undi_nic *undinic = netdev->priv; - struct s_PXENV_UNDI_ISR undi_isr; - struct io_buffer *iobuf = NULL; - unsigned int quota = UNDI_RX_QUOTA; - size_t len; - size_t reserve_len; - size_t frag_len; - size_t max_frag_len; - int rc; - - if ( ! undinic->isr_processing ) { - /* Allow interrupt to occur. Do this even if - * interrupts are not known to be supported, since - * some cards erroneously report that they do not - * support interrupts. - */ - if ( ! undinet_isr_triggered() ) { - /* Allow interrupt to occur */ - profile_start ( &undinet_irq_profiler ); - __asm__ __volatile__ ( "sti\n\t" - "nop\n\t" - "nop\n\t" - "cli\n\t" ); - profile_stop ( &undinet_irq_profiler ); - - /* If interrupts are known to be supported, - * then do nothing on this poll; wait for the - * interrupt to be triggered. - */ - if ( undinic->irq_supported ) - return; - } - - /* Start ISR processing */ - undinic->isr_processing = 1; - undi_isr.FuncFlag = PXENV_UNDI_ISR_IN_PROCESS; - } else { - /* Continue ISR processing */ - undi_isr.FuncFlag = PXENV_UNDI_ISR_IN_GET_NEXT; - } - - /* Run through the ISR loop */ - while ( quota ) { - profile_start ( &undinet_isr_call_profiler ); - if ( ( rc = pxeparent_call ( undinet_entry, PXENV_UNDI_ISR, - &undi_isr, - sizeof ( undi_isr ) ) ) != 0 ) { - netdev_rx_err ( netdev, NULL, rc ); - break; - } - profile_stop ( &undinet_isr_call_profiler ); - switch ( undi_isr.FuncFlag ) { - case PXENV_UNDI_ISR_OUT_TRANSMIT: - /* We don't care about transmit completions */ - break; - case PXENV_UNDI_ISR_OUT_RECEIVE: - /* Packet fragment received */ - profile_start ( &undinet_rx_profiler ); - len = undi_isr.FrameLength; - frag_len = undi_isr.BufferLength; - reserve_len = ( -undi_isr.FrameHeaderLength & - ( UNDI_RX_ALIGN - 1 ) ); - if ( ( len == 0 ) || ( len < frag_len ) ) { - /* Don't laugh. VMWare does it. */ - DBGC ( undinic, "UNDINIC %p reported insane " - "fragment (%zd of %zd bytes)\n", - undinic, frag_len, len ); - netdev_rx_err ( netdev, NULL, -EINVAL ); - break; - } - if ( ! iobuf ) { - iobuf = alloc_iob ( reserve_len + len ); - if ( ! iobuf ) { - DBGC ( undinic, "UNDINIC %p could not " - "allocate %zd bytes for RX " - "buffer\n", undinic, len ); - /* Fragment will be dropped */ - netdev_rx_err ( netdev, NULL, -ENOMEM ); - goto done; - } - iob_reserve ( iobuf, reserve_len ); - } - max_frag_len = iob_tailroom ( iobuf ); - if ( frag_len > max_frag_len ) { - DBGC ( undinic, "UNDINIC %p fragment too big " - "(%zd+%zd does not fit into %zd)\n", - undinic, iob_len ( iobuf ), frag_len, - ( iob_len ( iobuf ) + max_frag_len ) ); - frag_len = max_frag_len; - } - copy_from_real ( iob_put ( iobuf, frag_len ), - undi_isr.Frame.segment, - undi_isr.Frame.offset, frag_len ); - if ( iob_len ( iobuf ) == len ) { - /* Whole packet received; deliver it */ - netdev_rx ( netdev, iob_disown ( iobuf ) ); - quota--; - /* Etherboot 5.4 fails to return all packets - * under mild load; pretend it retriggered. - */ - if ( undinic->hacks & UNDI_HACK_EB54 ) - --last_trigger_count; - } - profile_stop ( &undinet_rx_profiler ); - break; - case PXENV_UNDI_ISR_OUT_DONE: - /* Processing complete */ - undinic->isr_processing = 0; - goto done; - default: - /* Should never happen. VMWare does it routinely. */ - DBGC ( undinic, "UNDINIC %p ISR returned invalid " - "FuncFlag %04x\n", undinic, undi_isr.FuncFlag ); - undinic->isr_processing = 0; - goto done; - } - undi_isr.FuncFlag = PXENV_UNDI_ISR_IN_GET_NEXT; - } - - done: - if ( iobuf ) { - DBGC ( undinic, "UNDINIC %p returned incomplete packet " - "(%zd of %zd)\n", undinic, iob_len ( iobuf ), - ( iob_len ( iobuf ) + iob_tailroom ( iobuf ) ) ); - netdev_rx_err ( netdev, iobuf, -EINVAL ); - } -} - -/** - * Open NIC - * - * @v netdev Net device - * @ret rc Return status code - */ -static int undinet_open ( struct net_device *netdev ) { - struct undi_nic *undinic = netdev->priv; - struct s_PXENV_UNDI_SET_STATION_ADDRESS undi_set_address; - struct s_PXENV_UNDI_OPEN undi_open; - int rc; - - /* Hook interrupt service routine and enable interrupt if applicable */ - if ( undinic->irq ) { - undinet_hook_isr ( undinic->irq ); - enable_irq ( undinic->irq ); - send_eoi ( undinic->irq ); - } - - /* Set station address. Required for some PXE stacks; will - * spuriously fail on others. Ignore failures. We only ever - * use it to set the MAC address to the card's permanent value - * anyway. - */ - memcpy ( undi_set_address.StationAddress, netdev->ll_addr, - sizeof ( undi_set_address.StationAddress ) ); - pxeparent_call ( undinet_entry, PXENV_UNDI_SET_STATION_ADDRESS, - &undi_set_address, sizeof ( undi_set_address ) ); - - /* Open NIC. We ask for promiscuous operation, since it's the - * only way to ask for all multicast addresses. On any - * switched network, it shouldn't really make a difference to - * performance. - */ - memset ( &undi_open, 0, sizeof ( undi_open ) ); - undi_open.PktFilter = ( FLTR_DIRECTED | FLTR_BRDCST | FLTR_PRMSCS ); - if ( ( rc = pxeparent_call ( undinet_entry, PXENV_UNDI_OPEN, - &undi_open, sizeof ( undi_open ) ) ) != 0 ) - goto err; - - DBGC ( undinic, "UNDINIC %p opened\n", undinic ); - return 0; - - err: - undinet_close ( netdev ); - return rc; -} - -/** - * Close NIC - * - * @v netdev Net device - */ -static void undinet_close ( struct net_device *netdev ) { - struct undi_nic *undinic = netdev->priv; - struct s_PXENV_UNDI_ISR undi_isr; - struct s_PXENV_UNDI_CLOSE undi_close; - int rc; - - /* Ensure ISR has exited cleanly */ - while ( undinic->isr_processing ) { - undi_isr.FuncFlag = PXENV_UNDI_ISR_IN_GET_NEXT; - if ( ( rc = pxeparent_call ( undinet_entry, PXENV_UNDI_ISR, - &undi_isr, - sizeof ( undi_isr ) ) ) != 0 ) - break; - switch ( undi_isr.FuncFlag ) { - case PXENV_UNDI_ISR_OUT_TRANSMIT: - case PXENV_UNDI_ISR_OUT_RECEIVE: - /* Continue draining */ - break; - default: - /* Stop processing */ - undinic->isr_processing = 0; - break; - } - } - - /* Close NIC */ - pxeparent_call ( undinet_entry, PXENV_UNDI_CLOSE, - &undi_close, sizeof ( undi_close ) ); - - /* Disable interrupt and unhook ISR if applicable */ - if ( undinic->irq ) { - disable_irq ( undinic->irq ); - undinet_unhook_isr ( undinic->irq ); - } - - DBGC ( undinic, "UNDINIC %p closed\n", undinic ); -} - -/** - * Enable/disable interrupts - * - * @v netdev Net device - * @v enable Interrupts should be enabled - */ -static void undinet_irq ( struct net_device *netdev, int enable ) { - struct undi_nic *undinic = netdev->priv; - - /* Cannot support interrupts yet */ - DBGC ( undinic, "UNDINIC %p cannot %s interrupts\n", - undinic, ( enable ? "enable" : "disable" ) ); -} - -/** UNDI network device operations */ -static struct net_device_operations undinet_operations = { - .open = undinet_open, - .close = undinet_close, - .transmit = undinet_transmit, - .poll = undinet_poll, - .irq = undinet_irq, -}; - -/** A device with broken support for generating interrupts */ -struct undinet_irq_broken { - /** PCI vendor ID */ - uint16_t pci_vendor; - /** PCI device ID */ - uint16_t pci_device; -}; - -/** - * List of devices with broken support for generating interrupts - * - * Some PXE stacks are known to claim that IRQs are supported, but - * then never generate interrupts. No satisfactory solution has been - * found to this problem; the workaround is to add the PCI vendor and - * device IDs to this list. This is something of a hack, since it - * will generate false positives for identical devices with a working - * PXE stack (e.g. those that have been reflashed with iPXE), but it's - * an improvement on the current situation. - */ -static const struct undinet_irq_broken undinet_irq_broken_list[] = { - /* HP XX70x laptops */ - { .pci_vendor = 0x8086, .pci_device = 0x1502 }, - { .pci_vendor = 0x8086, .pci_device = 0x1503 }, -}; - -/** - * Check for devices with broken support for generating interrupts - * - * @v undi UNDI device - * @ret irq_is_broken Interrupt support is broken; no interrupts are generated - */ -static int undinet_irq_is_broken ( struct undi_device *undi ) { - const struct undinet_irq_broken *broken; - unsigned int i; - - for ( i = 0 ; i < ( sizeof ( undinet_irq_broken_list ) / - sizeof ( undinet_irq_broken_list[0] ) ) ; i++ ) { - broken = &undinet_irq_broken_list[i]; - if ( ( undi->dev.desc.bus_type == BUS_TYPE_PCI ) && - ( undi->dev.desc.vendor == broken->pci_vendor ) && - ( undi->dev.desc.device == broken->pci_device ) ) { - return 1; - } - } - return 0; -} - -/** - * Probe UNDI device - * - * @v undi UNDI device - * @ret rc Return status code - */ -int undinet_probe ( struct undi_device *undi ) { - struct net_device *netdev; - struct undi_nic *undinic; - struct s_PXENV_START_UNDI start_undi; - struct s_PXENV_UNDI_STARTUP undi_startup; - struct s_PXENV_UNDI_INITIALIZE undi_init; - struct s_PXENV_UNDI_GET_INFORMATION undi_info; - struct s_PXENV_UNDI_GET_IFACE_INFO undi_iface; - struct s_PXENV_UNDI_SHUTDOWN undi_shutdown; - struct s_PXENV_UNDI_CLEANUP undi_cleanup; - struct s_PXENV_STOP_UNDI stop_undi; - unsigned int retry; - int rc; - - /* Allocate net device */ - netdev = alloc_etherdev ( sizeof ( *undinic ) ); - if ( ! netdev ) - return -ENOMEM; - netdev_init ( netdev, &undinet_operations ); - undinic = netdev->priv; - undi_set_drvdata ( undi, netdev ); - netdev->dev = &undi->dev; - memset ( undinic, 0, sizeof ( *undinic ) ); - undinet_entry = undi->entry; - DBGC ( undinic, "UNDINIC %p using UNDI %p\n", undinic, undi ); - - /* Hook in UNDI stack */ - if ( ! ( undi->flags & UNDI_FL_STARTED ) ) { - memset ( &start_undi, 0, sizeof ( start_undi ) ); - start_undi.AX = undi->pci_busdevfn; - start_undi.BX = undi->isapnp_csn; - start_undi.DX = undi->isapnp_read_port; - start_undi.ES = BIOS_SEG; - start_undi.DI = find_pnp_bios(); - if ( ( rc = pxeparent_call ( undinet_entry, PXENV_START_UNDI, - &start_undi, - sizeof ( start_undi ) ) ) != 0 ) - goto err_start_undi; - } - undi->flags |= UNDI_FL_STARTED; - - /* Bring up UNDI stack */ - if ( ! ( undi->flags & UNDI_FL_INITIALIZED ) ) { - memset ( &undi_startup, 0, sizeof ( undi_startup ) ); - if ( ( rc = pxeparent_call ( undinet_entry, PXENV_UNDI_STARTUP, - &undi_startup, - sizeof ( undi_startup ) ) ) != 0 ) - goto err_undi_startup; - /* On some PXE stacks, PXENV_UNDI_INITIALIZE may fail - * due to a transient condition (e.g. media test - * failing because the link has only just come out of - * reset). We may therefore need to retry this call - * several times. - */ - for ( retry = 0 ; ; ) { - memset ( &undi_init, 0, sizeof ( undi_init ) ); - if ( ( rc = pxeparent_call ( undinet_entry, - PXENV_UNDI_INITIALIZE, - &undi_init, - sizeof ( undi_init ))) ==0) - break; - if ( ++retry > UNDI_INITIALIZE_RETRY_MAX ) - goto err_undi_initialize; - DBGC ( undinic, "UNDINIC %p retrying " - "PXENV_UNDI_INITIALIZE (retry %d)\n", - undinic, retry ); - /* Delay to allow link to settle if necessary */ - mdelay ( UNDI_INITIALIZE_RETRY_DELAY_MS ); - } - } - undi->flags |= UNDI_FL_INITIALIZED; - - /* Get device information */ - memset ( &undi_info, 0, sizeof ( undi_info ) ); - if ( ( rc = pxeparent_call ( undinet_entry, PXENV_UNDI_GET_INFORMATION, - &undi_info, sizeof ( undi_info ) ) ) != 0 ) - goto err_undi_get_information; - memcpy ( netdev->hw_addr, undi_info.PermNodeAddress, ETH_ALEN ); - memcpy ( netdev->ll_addr, undi_info.CurrentNodeAddress, ETH_ALEN ); - undinic->irq = undi_info.IntNumber; - if ( undinic->irq > IRQ_MAX ) { - DBGC ( undinic, "UNDINIC %p has invalid IRQ %d\n", - undinic, undinic->irq ); - rc = -EINVAL; - goto err_bad_irq; - } - DBGC ( undinic, "UNDINIC %p has MAC address %s and IRQ %d\n", - undinic, eth_ntoa ( netdev->hw_addr ), undinic->irq ); - - /* Get interface information */ - memset ( &undi_iface, 0, sizeof ( undi_iface ) ); - if ( ( rc = pxeparent_call ( undinet_entry, PXENV_UNDI_GET_IFACE_INFO, - &undi_iface, - sizeof ( undi_iface ) ) ) != 0 ) - goto err_undi_get_iface_info; - DBGC ( undinic, "UNDINIC %p has type %s, speed %d, flags %08x\n", - undinic, undi_iface.IfaceType, undi_iface.LinkSpeed, - undi_iface.ServiceFlags ); - if ( ( undi_iface.ServiceFlags & SUPPORTED_IRQ ) && - ( undinic->irq != 0 ) ) { - undinic->irq_supported = 1; - } - DBGC ( undinic, "UNDINIC %p using %s mode\n", undinic, - ( undinic->irq_supported ? "interrupt" : "polling" ) ); - if ( strncmp ( ( ( char * ) undi_iface.IfaceType ), "Etherboot", - sizeof ( undi_iface.IfaceType ) ) == 0 ) { - DBGC ( undinic, "UNDINIC %p Etherboot 5.4 workaround enabled\n", - undinic ); - undinic->hacks |= UNDI_HACK_EB54; - } - if ( undinet_irq_is_broken ( undi ) ) { - DBGC ( undinic, "UNDINIC %p forcing polling mode due to " - "broken interrupts\n", undinic ); - undinic->irq_supported = 0; - } - - /* Register network device */ - if ( ( rc = register_netdev ( netdev ) ) != 0 ) - goto err_register; - - /* Mark as link up; we don't handle link state */ - netdev_link_up ( netdev ); - - DBGC ( undinic, "UNDINIC %p added\n", undinic ); - return 0; - - err_register: - err_undi_get_iface_info: - err_bad_irq: - err_undi_get_information: - err_undi_initialize: - /* Shut down UNDI stack */ - memset ( &undi_shutdown, 0, sizeof ( undi_shutdown ) ); - pxeparent_call ( undinet_entry, PXENV_UNDI_SHUTDOWN, &undi_shutdown, - sizeof ( undi_shutdown ) ); - memset ( &undi_cleanup, 0, sizeof ( undi_cleanup ) ); - pxeparent_call ( undinet_entry, PXENV_UNDI_CLEANUP, &undi_cleanup, - sizeof ( undi_cleanup ) ); - undi->flags &= ~UNDI_FL_INITIALIZED; - err_undi_startup: - /* Unhook UNDI stack */ - memset ( &stop_undi, 0, sizeof ( stop_undi ) ); - pxeparent_call ( undinet_entry, PXENV_STOP_UNDI, &stop_undi, - sizeof ( stop_undi ) ); - undi->flags &= ~UNDI_FL_STARTED; - err_start_undi: - netdev_nullify ( netdev ); - netdev_put ( netdev ); - undi_set_drvdata ( undi, NULL ); - return rc; -} - -/** - * Remove UNDI device - * - * @v undi UNDI device - */ -void undinet_remove ( struct undi_device *undi ) { - struct net_device *netdev = undi_get_drvdata ( undi ); - struct undi_nic *undinic = netdev->priv; - struct s_PXENV_UNDI_SHUTDOWN undi_shutdown; - struct s_PXENV_UNDI_CLEANUP undi_cleanup; - struct s_PXENV_STOP_UNDI stop_undi; - - /* Unregister net device */ - unregister_netdev ( netdev ); - - /* If we are preparing for an OS boot, or if we cannot exit - * via the PXE stack, then shut down the PXE stack. - */ - if ( ! ( undi->flags & UNDI_FL_KEEP_ALL ) ) { - - /* Shut down UNDI stack */ - memset ( &undi_shutdown, 0, sizeof ( undi_shutdown ) ); - pxeparent_call ( undinet_entry, PXENV_UNDI_SHUTDOWN, - &undi_shutdown, sizeof ( undi_shutdown ) ); - memset ( &undi_cleanup, 0, sizeof ( undi_cleanup ) ); - pxeparent_call ( undinet_entry, PXENV_UNDI_CLEANUP, - &undi_cleanup, sizeof ( undi_cleanup ) ); - undi->flags &= ~UNDI_FL_INITIALIZED; - - /* Unhook UNDI stack */ - memset ( &stop_undi, 0, sizeof ( stop_undi ) ); - pxeparent_call ( undinet_entry, PXENV_STOP_UNDI, &stop_undi, - sizeof ( stop_undi ) ); - undi->flags &= ~UNDI_FL_STARTED; - } - - /* Clear entry point */ - memset ( &undinet_entry, 0, sizeof ( undinet_entry ) ); - - /* Free network device */ - netdev_nullify ( netdev ); - netdev_put ( netdev ); - - DBGC ( undinic, "UNDINIC %p removed\n", undinic ); -} diff --git a/qemu/roms/ipxe/src/arch/i386/drivers/net/undionly.c b/qemu/roms/ipxe/src/arch/i386/drivers/net/undionly.c deleted file mode 100644 index 70dbe4bfd..000000000 --- a/qemu/roms/ipxe/src/arch/i386/drivers/net/undionly.c +++ /dev/null @@ -1,142 +0,0 @@ -/* - * 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. - * - * You can also choose to distribute this program under the terms of - * the Unmodified Binary Distribution Licence (as given in the file - * COPYING.UBDL), provided that you have satisfied its requirements. - */ - -FILE_LICENCE ( GPL2_OR_LATER_OR_UBDL ); - -#include <stdint.h> -#include <stdlib.h> -#include <stdio.h> -#include <string.h> -#include <ipxe/device.h> -#include <ipxe/init.h> -#include <ipxe/pci.h> -#include <undi.h> -#include <undinet.h> -#include <undipreload.h> - -/** @file - * - * "Pure" UNDI driver - * - * This is the UNDI driver without explicit support for PCI or any - * other bus type. It is capable only of using the preloaded UNDI - * device. It must not be combined in an image with any other - * drivers. - * - * If you want a PXE-loadable image that contains only the UNDI - * driver, build "bin/undionly.kpxe". - * - * If you want any other image format, or any other drivers in - * addition to the UNDI driver, build e.g. "bin/undi.dsk". - */ - -/** - * Probe UNDI root bus - * - * @v rootdev UNDI bus root device - * - * Scans the UNDI bus for devices and registers all devices it can - * find. - */ -static int undibus_probe ( struct root_device *rootdev ) { - struct undi_device *undi = &preloaded_undi; - int rc; - - /* Check for a valie preloaded UNDI device */ - if ( ! undi->entry.segment ) { - DBG ( "No preloaded UNDI device found!\n" ); - return -ENODEV; - } - - /* Add to device hierarchy */ - undi->dev.driver_name = "undionly"; - if ( undi->pci_busdevfn != UNDI_NO_PCI_BUSDEVFN ) { - undi->dev.desc.bus_type = BUS_TYPE_PCI; - undi->dev.desc.location = undi->pci_busdevfn; - undi->dev.desc.vendor = undi->pci_vendor; - undi->dev.desc.device = undi->pci_device; - snprintf ( undi->dev.name, sizeof ( undi->dev.name ), - "UNDI-PCI%02x:%02x.%x", - PCI_BUS ( undi->pci_busdevfn ), - PCI_SLOT ( undi->pci_busdevfn ), - PCI_FUNC ( undi->pci_busdevfn ) ); - } else if ( undi->isapnp_csn != UNDI_NO_ISAPNP_CSN ) { - undi->dev.desc.bus_type = BUS_TYPE_ISAPNP; - snprintf ( undi->dev.name, sizeof ( undi->dev.name ), - "UNDI-ISAPNP" ); - } - undi->dev.parent = &rootdev->dev; - list_add ( &undi->dev.siblings, &rootdev->dev.children); - INIT_LIST_HEAD ( &undi->dev.children ); - - /* Create network device */ - if ( ( rc = undinet_probe ( undi ) ) != 0 ) - goto err; - - return 0; - - err: - list_del ( &undi->dev.siblings ); - return rc; -} - -/** - * Remove UNDI root bus - * - * @v rootdev UNDI bus root device - */ -static void undibus_remove ( struct root_device *rootdev __unused ) { - struct undi_device *undi = &preloaded_undi; - - undinet_remove ( undi ); - list_del ( &undi->dev.siblings ); -} - -/** UNDI bus root device driver */ -static struct root_driver undi_root_driver = { - .probe = undibus_probe, - .remove = undibus_remove, -}; - -/** UNDI bus root device */ -struct root_device undi_root_device __root_device = { - .dev = { .name = "UNDI" }, - .driver = &undi_root_driver, -}; - -/** - * Prepare for exit - * - * @v booting System is shutting down for OS boot - */ -static void undionly_shutdown ( int booting ) { - /* If we are shutting down to boot an OS, clear the "keep PXE - * stack" flag. - */ - if ( booting ) - preloaded_undi.flags &= ~UNDI_FL_KEEP_ALL; -} - -struct startup_fn startup_undionly __startup_fn ( STARTUP_LATE ) = { - .shutdown = undionly_shutdown, -}; diff --git a/qemu/roms/ipxe/src/arch/i386/drivers/net/undipreload.c b/qemu/roms/ipxe/src/arch/i386/drivers/net/undipreload.c deleted file mode 100644 index fca771843..000000000 --- a/qemu/roms/ipxe/src/arch/i386/drivers/net/undipreload.c +++ /dev/null @@ -1,42 +0,0 @@ -/* - * 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. - * - * You can also choose to distribute this program under the terms of - * the Unmodified Binary Distribution Licence (as given in the file - * COPYING.UBDL), provided that you have satisfied its requirements. - */ - -FILE_LICENCE ( GPL2_OR_LATER_OR_UBDL ); - -#include <realmode.h> -#include <undipreload.h> - -/** @file - * - * Preloaded UNDI stack - * - */ - -/** - * Preloaded UNDI device - * - * This is the UNDI device that was present when Etherboot started - * execution (i.e. when loading a .kpxe image). The first driver to - * claim this device must zero out this data structure. - */ -struct undi_device __data16 ( preloaded_undi ); diff --git a/qemu/roms/ipxe/src/arch/i386/drivers/net/undirom.c b/qemu/roms/ipxe/src/arch/i386/drivers/net/undirom.c deleted file mode 100644 index b54c6170f..000000000 --- a/qemu/roms/ipxe/src/arch/i386/drivers/net/undirom.c +++ /dev/null @@ -1,235 +0,0 @@ -/* - * 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 <string.h> -#include <pxe.h> -#include <realmode.h> -#include <undirom.h> - -/** @file - * - * UNDI expansion ROMs - * - */ - -/** List of all UNDI ROMs */ -static LIST_HEAD ( undiroms ); - -/** - * Parse PXE ROM ID structure - * - * @v undirom UNDI ROM - * @v pxeromid Offset within ROM to PXE ROM ID structure - * @ret rc Return status code - */ -static int undirom_parse_pxeromid ( struct undi_rom *undirom, - unsigned int pxeromid ) { - struct undi_rom_id undi_rom_id; - unsigned int undiloader; - - DBGC ( undirom, "UNDIROM %p has PXE ROM ID at %04x:%04x\n", undirom, - undirom->rom_segment, pxeromid ); - - /* Read PXE ROM ID structure and verify */ - copy_from_real ( &undi_rom_id, undirom->rom_segment, pxeromid, - sizeof ( undi_rom_id ) ); - if ( undi_rom_id.Signature != UNDI_ROM_ID_SIGNATURE ) { - DBGC ( undirom, "UNDIROM %p has bad PXE ROM ID signature " - "%08x\n", undirom, undi_rom_id.Signature ); - return -EINVAL; - } - - /* Check for UNDI loader */ - undiloader = undi_rom_id.UNDILoader; - if ( ! undiloader ) { - DBGC ( undirom, "UNDIROM %p has no UNDI loader\n", undirom ); - return -EINVAL; - } - - /* Fill in UNDI ROM loader fields */ - undirom->loader_entry.segment = undirom->rom_segment; - undirom->loader_entry.offset = undiloader; - undirom->code_size = undi_rom_id.CodeSize; - undirom->data_size = undi_rom_id.DataSize; - - DBGC ( undirom, "UNDIROM %p has UNDI loader at %04x:%04x " - "(code %04zx data %04zx)\n", undirom, - undirom->loader_entry.segment, undirom->loader_entry.offset, - undirom->code_size, undirom->data_size ); - return 0; -} - -/** - * Parse PCI expansion header - * - * @v undirom UNDI ROM - * @v pcirheader Offset within ROM to PCI expansion header - */ -static int undirom_parse_pcirheader ( struct undi_rom *undirom, - unsigned int pcirheader ) { - struct pcir_header pcir_header; - - DBGC ( undirom, "UNDIROM %p has PCI expansion header at %04x:%04x\n", - undirom, undirom->rom_segment, pcirheader ); - - /* Read PCI expansion header and verify */ - copy_from_real ( &pcir_header, undirom->rom_segment, pcirheader, - sizeof ( pcir_header ) ); - if ( pcir_header.signature != PCIR_SIGNATURE ) { - DBGC ( undirom, "UNDIROM %p has bad PCI expansion header " - "signature %08x\n", undirom, pcir_header.signature ); - return -EINVAL; - } - - /* Fill in UNDI ROM PCI device fields */ - undirom->bus_type = PCI_NIC; - undirom->bus_id.pci.vendor_id = pcir_header.vendor_id; - undirom->bus_id.pci.device_id = pcir_header.device_id; - - DBGC ( undirom, "UNDIROM %p is for PCI devices %04x:%04x\n", undirom, - undirom->bus_id.pci.vendor_id, undirom->bus_id.pci.device_id ); - return 0; - -} - -/** - * Probe UNDI ROM - * - * @v rom_segment ROM segment address - * @ret rc Return status code - */ -static int undirom_probe ( unsigned int rom_segment ) { - struct undi_rom *undirom = NULL; - struct undi_rom_header romheader; - size_t rom_len; - unsigned int pxeromid; - unsigned int pcirheader; - int rc; - - /* Read expansion ROM header and verify */ - copy_from_real ( &romheader, rom_segment, 0, sizeof ( romheader ) ); - if ( romheader.Signature != ROM_SIGNATURE ) { - rc = -EINVAL; - goto err; - } - rom_len = ( romheader.ROMLength * 512 ); - - /* Allocate memory for UNDI ROM */ - undirom = zalloc ( sizeof ( *undirom ) ); - if ( ! undirom ) { - DBG ( "Could not allocate UNDI ROM structure\n" ); - rc = -ENOMEM; - goto err; - } - DBGC ( undirom, "UNDIROM %p trying expansion ROM at %04x:0000 " - "(%zdkB)\n", undirom, rom_segment, ( rom_len / 1024 ) ); - undirom->rom_segment = rom_segment; - - /* Check for and parse PXE ROM ID */ - pxeromid = romheader.PXEROMID; - if ( ! pxeromid ) { - DBGC ( undirom, "UNDIROM %p has no PXE ROM ID\n", undirom ); - rc = -EINVAL; - goto err; - } - if ( pxeromid > rom_len ) { - DBGC ( undirom, "UNDIROM %p PXE ROM ID outside ROM\n", - undirom ); - rc = -EINVAL; - goto err; - } - if ( ( rc = undirom_parse_pxeromid ( undirom, pxeromid ) ) != 0 ) - goto err; - - /* Parse PCIR header, if present */ - pcirheader = romheader.PCIRHeader; - if ( pcirheader ) - undirom_parse_pcirheader ( undirom, pcirheader ); - - /* Add to UNDI ROM list and return */ - DBGC ( undirom, "UNDIROM %p registered\n", undirom ); - list_add ( &undirom->list, &undiroms ); - return 0; - - err: - free ( undirom ); - return rc; -} - -/** - * Create UNDI ROMs for all possible expansion ROMs - * - * @ret - */ -static void undirom_probe_all_roms ( void ) { - static int probed = 0; - unsigned int rom_segment; - - /* Perform probe only once */ - if ( probed ) - return; - - DBG ( "Scanning for PXE expansion ROMs\n" ); - - /* Scan through expansion ROM region at 512 byte intervals */ - for ( rom_segment = 0xc000 ; rom_segment < 0x10000 ; - rom_segment += 0x20 ) { - undirom_probe ( rom_segment ); - } - - probed = 1; -} - -/** - * Find UNDI ROM for PCI device - * - * @v vendor_id PCI vendor ID - * @v device_id PCI device ID - * @v rombase ROM base address, or 0 for any - * @ret undirom UNDI ROM, or NULL - */ -struct undi_rom * undirom_find_pci ( unsigned int vendor_id, - unsigned int device_id, - unsigned int rombase ) { - struct undi_rom *undirom; - - undirom_probe_all_roms(); - - list_for_each_entry ( undirom, &undiroms, list ) { - if ( undirom->bus_type != PCI_NIC ) - continue; - if ( undirom->bus_id.pci.vendor_id != vendor_id ) - continue; - if ( undirom->bus_id.pci.device_id != device_id ) - continue; - if ( rombase && ( ( undirom->rom_segment << 4 ) != rombase ) ) - continue; - DBGC ( undirom, "UNDIROM %p matched PCI %04x:%04x (%08x)\n", - undirom, vendor_id, device_id, rombase ); - return undirom; - } - - DBG ( "No UNDI ROM matched PCI %04x:%04x (%08x)\n", - vendor_id, device_id, rombase ); - return NULL; -} |