openslx-ng/ipxe.git/src/arch/i386, branch v0.9.9

[netdevice] Allow the hardware and link-layer addresses to differ in size

2009-08-11T23:23:38+00:00

IPoIB has a 20-byte link-layer address, of which only eight bytes represent anything relating to a "hardware address". The PXE and EFI SNP APIs expect the permanent address to be the same size as the link-layer address, so fill in the "permanent address" field with the initial link layer address (as generated by register_netdev() based upon the real hardware address).

[netdevice] Separate out the concept of hardware and link-layer addresses

2009-08-11T23:19:14+00:00

The hardware address is an intrinsic property of the hardware, while the link-layer address can be changed at runtime. This separation is exposed via APIs such as PXE and EFI, but is currently elided by gPXE. Expose the hardware and link-layer addresses as separate properties within a net device. Drivers should now fill in hw_addr, which will be used to initialise ll_addr at the time of calling register_netdev().

[zbin] Change fixup semantics to support ROMs over 128k uncompressed

2009-08-11T11:59:26+00:00

The option ROM header contains a one-byte field indicating the number of 512-byte sectors in the ROM image. Currently it is linked to contain the number of uncompressed sectors, with an instruction to the compressor to correct it. This causes link failure when the uncompressed size of the ROM image is over 128k. Fix by replacing the SUBx compressor fixup with an ADDx fixup that adds the total compressed output length, scaled as requested, to an addend stored in the field where the final length value will be placed. This is similar to the behavior of ELF relocations, and ensures that an overflow error will not be generated unless the compressed size is still too large for the field. This also allows us to do away with the _filesz_pgh and _filesz_sect calculations exported by the linker script. Output tested bitwise identical to the old SUBx mechanism on hd, dsk, lkrn, and rom prefixes, on both 32-bit and 64-bit processors. Modified-by: Michael Brown Signed-off-by: Michael Brown

[infiniband] Add support for the SRP Boot Firmware Table

2009-08-10T21:32:47+00:00

The SRP Boot Firmware Table serves a similar role to the iSCSI and AoE Boot Firmware Tables; it provides information required by the loaded OS in order to establish a connection back to the SRP boot device.

[infiniband] Add support for SRP over Infiniband

2009-08-10T21:27:33+00:00

SRP is the SCSI RDMA Protocol. It allows for a method of SAN booting whereby the target is responsible for reading and writing data using Remote DMA directly to the initiator's memory. The software initiator merely sends and receives SCSI commands; it never has to touch the actual data.

[romprefix] Cope with PnP BIOSes that fail to set %es:%di on entry

2009-08-08T14:32:28+00:00

Some BIOSes support the BIOS Boot Specification (BBS) but fail to set %es:%di correctly when calling the option ROM initialisation entry point. This causes gPXE to identify the BIOS as non-PnP (and so non-BBS), leaving the user unable to control the boot order. Fix by scanning for the $PnP signature ourselves, rather than relying on the BIOS having passed in %es:%di correctly. Tested-by: Helmut Adrigan

[pxe] Dual-license pxe_api.h under the MIT license

2009-08-02T22:29:06+00:00

pxe_api.h is just a description of API functions, it's actively undesirable to have more implementations than necessary. Allowing it under the MIT license lets the Syslinux libraries use it. Signed-off-by: H. Peter Anvin Signed-off-by: Michael Brown

[pxe] Avoid printf format warning on some compilers

2009-08-02T21:45:24+00:00

Tested-by: Joshua Oreman

[build] Add syslinux floppy image type .sdsk

2009-08-02T10:04:13+00:00

We add a syslinux floppy disk type using parts of the genliso script. This floppy image cat be dd'ed to a physical floppy or used in instances where a virtual floppy with an mountable DOS filesystem is useful. We also modify the genliso script to only generate .liso images rather than creating images depending on how it is called. Signed-off-by: Michael Brown

[netdevice] Make ll_broadcast per-netdevice rather than per-ll_protocol

2009-07-17T22:02:48+00:00

IPoIB has a link-layer broadcast address that varies according to the partition key. We currently go through several contortions to pretend that the link-layer address is a fixed constant; by making the broadcast address a property of the network device rather than the link-layer protocol it will be possible to simplify IPoIB's broadcast handling.