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

..

acpi_settings.c

[acpi] Allow for the possibility of overriding ACPI tables at link time

2022-03-24 12:58:52 +00:00

acpi.c

[acpi] Allow for the possibility of overriding ACPI tables at link time

2022-03-24 12:58:52 +00:00

acpimac.c

[acpi] Expose system MAC address via ${sysmac} setting

2022-06-10 13:44:40 +01:00

ansicol.c

[legal] Relicense files under GPL2_OR_LATER_OR_UBDL

2015-03-02 14:17:31 +00:00

ansicoldef.c

[legal] Relicense files under GPL2_OR_LATER_OR_UBDL

2015-03-02 14:17:31 +00:00

ansiesc.c

[legal] Relicense files under GPL2_OR_LATER_OR_UBDL

2015-03-02 14:17:31 +00:00

archive.c

[image] Split image_strip_suffix() out from image_extract()

2024-08-29 13:09:41 +01:00

asprintf.c

[legal] Relicense files under GPL2_OR_LATER_OR_UBDL

2015-03-02 14:17:31 +00:00

assert.c

[legal] Relicense files under GPL2_OR_LATER_OR_UBDL

2015-03-02 14:17:31 +00:00

base16.c

[uuid] Add uuid_aton() to parse a UUID from a string

2024-02-29 14:43:55 +00:00

base64.c

[base64] Include terminating NUL within base64 character array

2021-06-07 13:20:02 +01:00

basename.c

[legal] Relicense files under GPL2_OR_LATER_OR_UBDL

2015-03-02 14:17:31 +00:00

bitmap.c

[legal] Relicense files under GPL2_OR_LATER_OR_UBDL

2015-03-02 16:35:29 +00:00

blockdev.c

[legal] Relicense files under GPL2_OR_LATER_OR_UBDL

2015-03-02 14:17:31 +00:00

blocktrans.c

[interface] Provide intf_insert() to insert a filter interface

2020-12-07 13:50:24 +00:00

cachedhcp.c

[cachedhcp] Allow cached DHCPACK to apply to temporary network devices

2024-04-02 22:59:50 +01:00

console.c

[libc] Match standard prototype for putchar()

2021-06-07 13:26:01 +01:00

cpio.c

[cpio] Allow for the construction of pure directories

2025-03-12 14:32:41 +00:00

ctype.c

[libc] Rewrite unrelicensable portions of ctype.h

2015-03-02 16:35:37 +00:00

cwuri.c

[legal] Relicense files under GPL2_OR_LATER_OR_UBDL

2015-03-02 16:35:29 +00:00

debug_md5.c

[legal] Relicense files under GPL2_OR_LATER_OR_UBDL

2015-03-02 14:17:31 +00:00

debug.c

[debug] Allow debug colourisation to be disabled

2016-01-12 15:39:14 +00:00

device.c

[init] Show startup and shutdown function names in debug messages

2019-01-25 14:53:43 +00:00

dma.c

[dma] Provide dma_umalloc() for allocating large DMA-coherent buffers

2020-11-29 11:25:40 +00:00

downloader.c

[downloader] Allow underlying downloads to provide detailed job progress

2017-09-05 23:23:22 +01:00

dummy_sanboot.c

[block] Allow for additional SAN boot parameters alongside filename

2024-03-06 12:19:22 +00:00

dynkeymap.c

[console] Support changing keyboard map at runtime

2022-02-16 14:06:33 +00:00

dynui.c

[dynui] Allow for multiple flags on a user interface item

2024-06-20 16:24:38 -07:00

edd.c

[legal] Relicense files under GPL2_OR_LATER_OR_UBDL

2015-03-02 14:17:31 +00:00

errno.c

[legal] Relicense files under GPL2_OR_LATER_OR_UBDL

2015-03-02 14:17:31 +00:00

exec.c

[libc] Make sleep() interruptible

2016-03-22 16:18:42 +00:00

fault.c

[fault] Add inject_corruption() to randomly corrupt data

2015-07-22 21:17:47 +01:00

fbcon.c

[fbcon] Support Unicode character output

2022-03-15 17:27:18 +00:00

fdt.c

[fdt] Provide the ability to create a device tree for a booted OS

2025-03-28 15:29:51 +00:00

fnrec.c

[legal] Relicense files under GPL2_OR_LATER_OR_UBDL

2015-03-05 11:40:13 +00:00

gdbserial.c

[gdb] Allow gdbstub to be started on an arbitrary serial port

2015-06-29 16:44:16 +01:00

gdbstub.c

[gdb] Allow CPU architectures to omit support for GDB

2024-09-05 13:00:39 +01:00

gdbudp.c

[legal] Relicense files under GPL2_OR_LATER_OR_UBDL

2015-03-05 11:40:13 +00:00

getkey.c

[efi] Work around broken UEFI keyboard drivers

2016-05-25 23:28:41 +01:00

getopt.c

[legal] Relicense files under GPL2_OR_LATER_OR_UBDL

2015-03-02 14:50:42 +00:00

hw.c

[hw] Eliminate polling while waiting for window to open

2011-06-28 14:45:11 +01:00

i82365.c

Initial revision

2005-03-08 18:53:11 +00:00

image.c

[image] Split image_strip_suffix() out from image_extract()

2024-08-29 13:09:41 +01:00

init.c

[init] Show startup and shutdown function names in debug messages

2019-01-25 14:53:43 +00:00

interface.c

[interface] Fix debug message values for temporary interfaces

2023-07-04 16:54:39 +01:00

iobuf.c

[iobuf] Limit automatic I/O buffer alignment to page size

2025-03-31 13:39:58 +01:00

iomap_virt.c

[ioapi] Split ioremap() out to a separate IOMAP API

2016-02-26 15:33:40 +00:00

isqrt.c

[legal] Relicense files under GPL2_OR_LATER_OR_UBDL

2015-03-02 14:17:31 +00:00

job.c

[legal] Relicense files under GPL2_OR_LATER_OR_UBDL

2015-03-02 14:17:31 +00:00

keymap.c

[console] Support changing keyboard map at runtime

2022-02-16 14:06:33 +00:00

linebuf.c

[linebuf] Support buffering of multiple lines

2015-07-28 16:59:11 +01:00

lineconsole.c

[syslog] Handle backspace characters

2017-06-13 11:54:41 +01:00

list.c

[legal] Relicense files under GPL2_OR_LATER_OR_UBDL

2015-03-02 14:17:31 +00:00

log.c

[legal] Relicense files under GPL2_OR_LATER_OR_UBDL

2015-03-02 14:17:31 +00:00

main.c

[efi] Restructure handling of autoexec.ipxe script

2024-04-03 00:03:49 +01:00

malloc.c

[malloc] Ensure free memory blocks remain aligned

2025-02-03 14:43:03 +00:00

memmap_settings.c

[settings] Extend numerical setting tags to 64 bits

2017-05-22 13:54:13 +01:00

monojob.c

[monojob] Display job status message, if present

2017-09-05 23:23:22 +01:00

mp.c

[mp] Define an API for multiprocessor functions

2024-03-15 13:26:53 +00:00

netbios.c

[http] Allow for domain names within NTLM user names

2018-02-19 11:58:28 +00:00

null_acpi.c

[acpi] Allow for platforms that provide ACPI tables individually

2021-03-01 00:08:23 +00:00

null_mp.c

[mp] Define an API for multiprocessor functions

2024-03-15 13:26:53 +00:00

null_nap.c

[build] Rename gPXE to iPXE

2010-04-19 23:43:39 +01:00

null_pci.c

[pci] Provide a null PCI API for platforms with no PCI bus

2024-10-28 16:43:43 +00:00

null_reboot.c

[legal] Relicense files under GPL2_OR_LATER_OR_UBDL

2015-03-02 14:50:42 +00:00

null_sanboot.c

[block] Allow for additional SAN boot parameters alongside filename

2024-03-06 12:19:22 +00:00

null_smbios.c

[smbios] Provide a null SMBIOS API for platforms with no concept of SMBIOS

2024-10-25 14:05:00 +01:00

null_time.c

[legal] Relicense files under GPL2_OR_LATER_OR_UBDL

2015-03-02 14:17:31 +00:00

nvo.c

[legal] Relicense files under GPL2_OR_LATER_OR_UBDL

2015-03-02 14:17:31 +00:00

open.c

[uri] Make URI schemes case-insensitive

2021-07-01 16:32:46 +01:00

params.c

[params] Allow for arbitrary HTTP request headers to be specified

2023-03-01 12:20:02 +00:00

parseopt.c

[dynui] Generalise the concept of a menu to a dynamic user interface

2024-06-20 14:26:06 -07:00

pc_kbd.c

[console] Move include/console.h to include/ipxe/console.h

2011-03-09 20:09:26 +00:00

pcmcia.c

[console] Move putchar() and getchar() declarations to stdio.h

2012-03-26 14:43:52 +01:00

pending.c

[legal] Relicense files under GPL2_OR_LATER_OR_UBDL

2015-03-02 14:17:31 +00:00

pinger.c

[legal] Relicense files under GPL2_OR_LATER_OR_UBDL

2015-03-02 14:17:31 +00:00

pixbuf.c

[pixbuf] Avoid potential division by zero

2017-03-22 14:11:19 +02:00

pool.c

[pool] Add a generic concept of a pooled connection

2015-07-28 16:37:00 +01:00

posix_io.c

[legal] Relicense files under GPL2_OR_LATER_OR_UBDL

2015-03-02 16:35:29 +00:00

process.c

[legal] Relicense files under GPL2_OR_LATER_OR_UBDL

2015-03-02 14:17:31 +00:00

profile.c

[profile] Prevent potential division by zero

2018-03-18 18:39:39 +02:00

quiesce.c

[block] Provide abstraction to allow system to be quiesced

2017-04-26 20:15:39 +01:00

random.c

[libc] Use wall clock time as seed for the (non-cryptographic) RNG

2023-10-06 12:50:43 +01:00

refcnt.c

[legal] Relicense files under GPL2_OR_LATER_OR_UBDL

2015-03-02 16:35:29 +00:00

resolv.c

[resolv] Use pass-through interfaces for name resolution multiplexer

2017-09-06 11:43:22 +01:00

sanboot.c

[efi] Allow booting from local disks via the "sanboot" command

2024-03-05 13:25:35 +00:00

serial.c

[init] Show startup and shutdown function names in debug messages

2019-01-25 14:53:43 +00:00

settings.c

[settings] Expose current working URI and directory URI via settings

2024-03-19 13:33:21 +00:00

string.c

[libc] Add stpcpy()

2024-05-31 10:11:22 +01:00

stringextra.c

[libc] Remove unused string functions

2015-02-16 16:25:20 +00:00

time.c

[time] Allow system clock to be adjusted at runtime

2016-06-13 15:29:05 +01:00

timer.c

[time] Add sleep_fixed() function to sleep without checking for Ctrl-C

2017-03-27 15:41:22 +03:00

uaccess.c

[uaccess] Rename UACCESS_EFI to UACCESS_FLAT

2024-10-25 14:21:27 +01:00

uart.c

[serial] Check for UART existence in uart_select()

2015-07-31 11:19:19 +01:00

uri.c

[uri] Allow for relative URIs that include colons within the path

2022-01-13 15:03:22 +00:00

utf8.c

[utf8] Add ability to accumulate Unicode characters from UTF-8 bytes

2022-03-01 15:57:33 +00:00

uuid.c

[uuid] Add uuid_aton() to parse a UUID from a string

2024-02-29 14:43:55 +00:00

version.c

[efi] Include Secure Boot Advanced Targeting (SBAT) metadata

2022-01-13 14:12:44 +00:00

vsprintf.c

[libc] Print "<NULL>" for wide-character NULL strings

2016-04-12 11:53:06 +01:00

wchar.c

[legal] Relicense files under GPL2_OR_LATER_OR_UBDL

2015-03-02 14:17:31 +00:00

xfer.c

[interface] Fix debug message values for temporary interfaces

2023-07-04 16:54:39 +01:00

xferbuf.c

[build] Fix compiler warnings on some gcc versions

2015-07-27 15:21:17 +01:00