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138fe4e069
linux/arch/x86/kernel
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Konrad Rzeszutek 138fe4e069 Firmware: add iSCSI iBFT Support 
Add /sysfs/firmware/ibft/[initiator|targetX|ethernetX] directories along with
text properties which export the the iSCSI Boot Firmware Table (iBFT)
structure.

What is iSCSI Boot Firmware Table?  It is a mechanism for the iSCSI tools to
extract from the machine NICs the iSCSI connection information so that they
can automagically mount the iSCSI share/target.  Currently the iSCSI
information is hard-coded in the initrd.  The /sysfs entries are read-only
one-name-and-value fields.

The usual set of data exposed is:

# for a in `find /sys/firmware/ibft/ -type f -print`; do  echo -n "$a: ";  cat $a; done
/sys/firmware/ibft/target0/target-name: iqn.2007.com.intel-sbx44:storage-10gb
/sys/firmware/ibft/target0/nic-assoc: 0
/sys/firmware/ibft/target0/chap-type: 0
/sys/firmware/ibft/target0/lun: 00000000
/sys/firmware/ibft/target0/port: 3260
/sys/firmware/ibft/target0/ip-addr: 192.168.79.116
/sys/firmware/ibft/target0/flags: 3
/sys/firmware/ibft/target0/index: 0
/sys/firmware/ibft/ethernet0/mac: 00:11:25:9d:8b:01
/sys/firmware/ibft/ethernet0/vlan: 0
/sys/firmware/ibft/ethernet0/gateway: 192.168.79.254
/sys/firmware/ibft/ethernet0/origin: 0
/sys/firmware/ibft/ethernet0/subnet-mask: 255.255.252.0
/sys/firmware/ibft/ethernet0/ip-addr: 192.168.77.41
/sys/firmware/ibft/ethernet0/flags: 7
/sys/firmware/ibft/ethernet0/index: 0
/sys/firmware/ibft/initiator/initiator-name: iqn.2007-07.com:konrad.initiator
/sys/firmware/ibft/initiator/flags: 3
/sys/firmware/ibft/initiator/index: 0

For full details of the IBFT structure please take a look at:
ftp://ftp.software.ibm.com/systems/support/system_x_pdf/ibm_iscsi_boot_firmware_table_v1.02.pdf

[akpm@linux-foundation.org: fix build]
Signed-off-by: Konrad Rzeszutek <konradr@linux.vnet.ibm.com>
Cc: Mike Christie <michaelc@cs.wisc.edu>
Cc: Peter Jones <pjones@redhat.com>
Cc: James Bottomley <James.Bottomley@HansenPartnership.com>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-04-19 19:10:28 -07:00
..
acpi x86: move suspend wakeup code to C 2008-04-17 17:41:37 +02:00
cpu x86: move apic declarations to mach_apic.h 2008-04-17 17:41:30 +02:00
.gitignore
alternative.c x86: fix test_poke for vmalloced pages 2008-04-17 17:41:29 +02:00
aperture_64.c x86: clean up aperture_64.c 2008-04-17 17:41:19 +02:00
apic_32.c x86: move up & smp variables to setup.c 2008-04-17 17:41:35 +02:00
apic_64.c x86: move up & smp variables to setup.c 2008-04-17 17:41:35 +02:00
apm_32.c x86: switch to proc_create() 2008-04-17 17:40:51 +02:00
asm-offsets_32.c x86: move struct definitions to unifed sigframe.h 2008-04-17 17:40:46 +02:00
asm-offsets_64.c
asm-offsets.c
audit_64.c
bootflag.c
bugs_64.c x86: don't use large pages to map the first 2/4MB of memory 2008-04-17 17:41:30 +02:00
cpuid.c
crash_dump_32.c
crash_dump_64.c
crash.c x86: move ipi definitions to mach_ipi.h 2008-04-17 17:41:30 +02:00
doublefault_32.c
ds.c x86: debug Store - call kfree if only we really need it 2008-04-17 17:41:34 +02:00
e820_32.c x86: reserve end-of-conventional-memory to 1MB on 32-bit 2008-04-17 17:40:51 +02:00
e820_64.c x86: move suspend wakeup code to C 2008-04-17 17:41:37 +02:00
early_printk.c x86: coding style fixes to x86/kernel/early_printk.c 2008-04-17 17:40:51 +02:00
early-quirks.c
efi_32.c x86: sparse error in efi_32.c 2008-02-19 16:18:28 +01:00
efi_64.c x86: EFI runtime code mapping enhancement 2008-02-13 16:20:35 +01:00
efi_stub_32.S
efi_stub_64.S
efi.c x86: sparse warning in efi.c 2008-02-19 16:18:28 +01:00
entry_32.S x86: entry_32.S - use flags from processor-flags.h 2008-04-17 17:41:30 +02:00
entry_64.S x86: ptrace vs -ENOSYS 2008-04-17 17:41:13 +02:00
genapic_64.c x86: move x86_cpu_to_apicid_init to smpboot.c 2008-04-17 17:41:34 +02:00
genapic_flat_64.c x86: use cpumask_of_cpu() 2008-04-17 17:41:36 +02:00
genx2apic_uv_x.c x86: support for new UV apic 2008-04-17 17:41:33 +02:00
geode_32.c x86: GEODE: MFGPT: Use "just-in-time" detection for the MFGPT timers 2008-02-09 23:24:08 +01:00
head32.c x86: introduce kernel/head32.c 2008-04-17 17:40:49 +02:00
head64.c x86: don't set up early exception handlers for external interrupts 2008-04-17 17:41:29 +02:00
head_32.S x86: introduce kernel/head32.c 2008-04-17 17:40:49 +02:00
head_64.S x86: move suspend wakeup code to C 2008-04-17 17:41:37 +02:00
hpet.c x86: revert assign IRQs to hpet timer 2008-04-04 18:36:49 +02:00
i386_ksyms_32.c Generic semaphore implementation 2008-04-17 10:42:34 -04:00
i387.c x86: clean up i387.c 2008-04-17 17:40:57 +02:00
i8237.c
i8253.c x86: pit_clockevent can be static 2008-02-13 16:20:35 +01:00
i8259_32.c x86: i8259A: remove redundant irq_descinitialization 2008-02-19 16:18:34 +01:00
i8259_64.c
init_task.c x86: delay the export removal of init_mm 2008-02-29 18:55:42 +01:00
io_apic_32.c x86: remove unnecessary tmp local variable 2008-04-17 17:41:36 +02:00
io_apic_64.c x86: use cpumask_of_cpu() 2008-04-17 17:41:36 +02:00
io_delay.c x86: add dmi quirk for io_delay 2008-03-26 22:23:40 +01:00
ioport.c
ipi.c x86: create ipi.c 2008-04-17 17:40:56 +02:00
irq_32.c x86: replace remaining __FUNCTION__ occurances 2008-04-17 17:40:57 +02:00
irq_64.c
k8.c
kdebugfs.c
kgdb.c x86: kgdb build fix 2008-04-18 10:02:12 -07:00
kprobes.c x86: replace most VM86 flags with flags from processor-flags.h 2008-04-17 17:41:33 +02:00
ldt.c
machine_kexec_32.c
machine_kexec_64.c vmcoreinfo: add the symbol "phys_base" 2008-04-02 15:28:19 -07:00
Makefile Merge git://git.kernel.org/pub/scm/linux/kernel/git/mingo/linux-2.6-kgdb 2008-04-18 08:37:01 -07:00
mca_32.c x86: coding style fixes to arch/x86/kernel/mca_32.c 2008-04-17 17:40:49 +02:00
mfgpt_32.c x86: GEODE: add missing module.h include 2008-03-26 22:23:40 +01:00
microcode.c x86: microcode: show results on success too 2008-04-17 17:41:32 +02:00
module_32.c
module_64.c
mpparse.c x86: print out buggy mptable 2008-04-17 17:41:36 +02:00
msr.c x86: coding style fixes to arch/x86/kernel/msr.c 2008-04-17 17:40:50 +02:00
nmi_32.c x86: fix ioapic bug again 2008-04-17 17:41:21 +02:00
nmi_64.c x86: wipe get_nmi_reason out of nmi_64.h 2008-04-17 17:41:01 +02:00
numaq_32.c
paravirt_patch_32.c
paravirt_patch_64.c
paravirt.c x86: paravirt_ops: don't steal memory resources in paravirt_disable_iospace 2008-04-17 17:41:33 +02:00
pci-calgary_64.c
pci-dma_32.c
pci-dma_64.c x86 iommu: add more documentation 2008-04-17 17:40:59 +02:00
pci-gart_64.c x86, agpgart: scary messages are fortunately obsolete 2008-04-04 18:36:46 +02:00
pci-nommu_64.c
pci-swiotlb_64.c
pcspeaker.c
pmtimer_64.c
process_32.c x86: improve default idle 2008-04-17 17:41:34 +02:00
process_64.c x86: improve default idle 2008-04-17 17:41:34 +02:00
ptrace.c x86: regparm(3) is mandatory, no need to annotate 2008-04-17 17:40:45 +02:00
quirks.c x86: hpet clock enable quirk on nVidia nForce 430 2008-03-21 17:06:15 +01:00
reboot_fixups_32.c
reboot.c x86: use cpu_online() 2008-04-17 17:41:36 +02:00
relocate_kernel_32.S x86: relocate_kernel - use predefined macroses for page attributes 2008-04-17 17:41:29 +02:00
relocate_kernel_64.S x86: relocate_kernel - use predefined macroses for page attributes 2008-04-17 17:41:29 +02:00
rtc.c x86: fix cmos read and write to not use inb_p and outb_p 2008-04-17 17:40:47 +02:00
scx200_32.c
setup64.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/mingo/linux-2.6-kgdb 2008-04-18 08:37:01 -07:00
setup_32.c Firmware: add iSCSI iBFT Support 2008-04-19 19:10:28 -07:00
setup_64.c Firmware: add iSCSI iBFT Support 2008-04-19 19:10:28 -07:00
setup.c x86: move up & smp variables to setup.c 2008-04-17 17:41:35 +02:00
sigframe.h x86: move struct definitions to unifed sigframe.h 2008-04-17 17:40:46 +02:00
signal_32.c x86: replace most VM86 flags with flags from processor-flags.h 2008-04-17 17:41:33 +02:00
signal_64.c x86: remove DEBUG_SIG 2008-04-17 17:40:57 +02:00
smp.c x86: move ipi definitions to mach_ipi.h 2008-04-17 17:41:30 +02:00
smpboot.c x86: standalone trampoline code 2008-04-17 17:41:37 +02:00
smpcommon_32.c x86: create smpcommon.c 2008-04-17 17:40:55 +02:00
smpcommon.c x86: create smpcommon.c 2008-04-17 17:40:55 +02:00
srat_32.c x86: replace remaining __FUNCTION__ occurances 2008-04-17 17:40:57 +02:00
stacktrace.c x86: don't save unreliable stack trace entries 2008-02-26 12:55:58 +01:00
step.c x86: prevent unconditional writes to DebugCtl MSR 2008-04-17 17:40:58 +02:00
summit_32.c x86: move mp_bus_id_to_node to numa.c 2008-04-17 17:40:59 +02:00
sys_i386_32.c
sys_x86_64.c
syscall_64.c x86: coding style fixes to arch/x86/kernel/syscall_64.c 2008-04-17 17:40:48 +02:00
syscall_table_32.S
tce_64.c
test_nx.c x86: Explicitly include required header files. 2008-04-17 17:41:15 +02:00
test_rodata.c x86: include proper prototypes for rodata_test 2008-02-14 23:30:20 +01:00
time_32.c
time_64.c
tlb_32.c x86: create tlb files 2008-04-17 17:40:56 +02:00
tlb_64.c x86: move ipi definitions to mach_ipi.h 2008-04-17 17:41:30 +02:00
tls.c asmlinkage_protect replaces prevent_tail_call 2008-04-10 17:28:26 -07:00
tls.h
topology.c x86: fix section mismatch warning in topology.c:arch_register_cpu 2008-02-19 16:18:30 +01:00
trampoline_32.S
trampoline_64.S x86: move suspend wakeup code to C 2008-04-17 17:41:37 +02:00
trampoline.c x86: standalone trampoline code 2008-04-17 17:41:37 +02:00
traps_32.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/mingo/linux-2.6-kgdb 2008-04-18 08:37:01 -07:00
traps_64.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/mingo/linux-2.6-kgdb 2008-04-18 08:37:01 -07:00
tsc_32.c x86: set_cyc2ns_scale() remove prev scale 2008-04-17 17:41:34 +02:00
tsc_64.c x86: set_cyc2ns_scale() remove prev scale 2008-04-17 17:41:34 +02:00
tsc_sync.c
verify_cpu_64.S
vm86_32.c x86: replace most VM86 flags with flags from processor-flags.h 2008-04-17 17:41:33 +02:00
vmi_32.c
vmiclock_32.c
vmlinux_32.lds.S x86: use ELF section to list CPU vendor specific code 2008-04-17 17:40:47 +02:00
vmlinux_64.lds.S x86: use ELF section to list CPU vendor specific code 2008-04-17 17:40:47 +02:00
vmlinux.lds.S
vsmp_64.c x86: clean up vSMP detection 2008-04-17 17:41:29 +02:00
vsyscall_64.c x86: restore vsyscall64 prochandler 2008-02-29 18:55:39 +01:00
x8664_ksyms_64.c Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/x86/linux-2.6-x86 2008-04-18 08:25:51 -07:00