WSL2-Linux-Kernel/Documentation/ABI/testing/sysfs-ibft

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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>
2008-04-10 06:50:41 +04:00
What: /sys/firmware/ibft/initiator
Date: November 2007
Contact: Konrad Rzeszutek <ketuzsezr@darnok.org>
Description: The /sys/firmware/ibft/initiator directory will contain
files that expose the iSCSI Boot Firmware Table initiator data.
Usually this contains the Initiator name.
What: /sys/firmware/ibft/targetX
Date: November 2007
Contact: Konrad Rzeszutek <ketuzsezr@darnok.org>
Description: The /sys/firmware/ibft/targetX directory will contain
files that expose the iSCSI Boot Firmware Table target data.
Usually this contains the target's IP address, boot LUN,
target name, and what NIC it is associated with. It can also
contain the CHAP name (and password), the reverse CHAP
name (and password)
What: /sys/firmware/ibft/ethernetX
Date: November 2007
Contact: Konrad Rzeszutek <ketuzsezr@darnok.org>
Description: The /sys/firmware/ibft/ethernetX directory will contain
files that expose the iSCSI Boot Firmware Table NIC data.
This can this can the IP address, MAC, and gateway of the NIC.