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Michael Brown 5818529f39 [iobuf] Limit automatic I/O buffer alignment to page size 
Without any explicit alignment requirement, we will currently allocate
I/O buffers on their own size rounded up to the nearest power of two.
This is done to simplify driver transmit code paths, which can assume
that a standard Ethernet frame lies within a single physical page and
therefore does not need to be split even for devices with DMA engines
that cannot cross page boundaries.

Limit this automatic alignment to a maximum of the page size, to avoid
requiring excessive alignment for unusually large buffers (such as a
buffer allocated for an HTTP POST with a large parameter list).

Signed-off-by: Michael Brown <mcb30@ipxe.org>
 		2025-03-31 13:39:58 +01:00
.github/workflows [ci] Update action versions to silence GitHub warnings 2024-03-07 23:25:35 +00:00
contrib [crypto] Update cmsdetach to work with python-asn1 version 3.0.0 2025-03-17 11:48:06 +00:00
src [iobuf] Limit automatic I/O buffer alignment to page size 2025-03-31 13:39:58 +01:00
COPYING [legal] Update GPLv2 licence text 2015-02-26 17:59:53 +00:00
COPYING.GPLv2 [legal] Update GPLv2 licence text 2015-02-26 17:59:53 +00:00
COPYING.UBDL [legal] Add support for the Unmodified Binary Distribution Licence 2015-03-02 12:07:14 +00:00
README [doc] Re-add README file 2010-05-28 00:03:47 +01:00

README 

iPXE README File

Quick start guide:

   cd src
   make

For any more detailed instructions, see http://ipxe.org