Attached is kernel patch for UDP Fragmentation Offload (UFO) feature.
1. This patch incorporate the review comments by Jeff Garzik.
2. Renamed USO as UFO (UDP Fragmentation Offload)
3. udp sendfile support with UFO
This patches uses scatter-gather feature of skb to generate large UDP
datagram. Below is a "how-to" on changes required in network device
driver to use the UFO interface.
UDP Fragmentation Offload (UFO) Interface:
-------------------------------------------
UFO is a feature wherein the Linux kernel network stack will offload the
IP fragmentation functionality of large UDP datagram to hardware. This
will reduce the overhead of stack in fragmenting the large UDP datagram to
MTU sized packets
1) Drivers indicate their capability of UFO using
dev->features |= NETIF_F_UFO | NETIF_F_HW_CSUM | NETIF_F_SG
NETIF_F_HW_CSUM is required for UFO over ipv6.
2) UFO packet will be submitted for transmission using driver xmit routine.
UFO packet will have a non-zero value for
"skb_shinfo(skb)->ufo_size"
skb_shinfo(skb)->ufo_size will indicate the length of data part in each IP
fragment going out of the adapter after IP fragmentation by hardware.
skb->data will contain MAC/IP/UDP header and skb_shinfo(skb)->frags[]
contains the data payload. The skb->ip_summed will be set to CHECKSUM_HW
indicating that hardware has to do checksum calculation. Hardware should
compute the UDP checksum of complete datagram and also ip header checksum of
each fragmented IP packet.
For IPV6 the UFO provides the fragment identification-id in
skb_shinfo(skb)->ip6_frag_id. The adapter should use this ID for generating
IPv6 fragments.
Signed-off-by: Ananda Raju <ananda.raju@neterion.com>
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au> (forwarded)
Signed-off-by: Arnaldo Carvalho de Melo <acme@mandriva.com>
If a BPA 100/105 device contains more then one interface then ignore the
additional interfaces, because they are unused.
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
This patch updates the HCI security filter with support for the Extended
Inquiry Response (EIR) feature.
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
This patch contains the big cleanup of the HCI UART driver. The uneeded
header files are removed and their structure declarations are moved into
the protocol implementations.
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
This patch moves rfcomm_crc_table[] into the RFCOMM core, because there
is no need to keep it in a separate file.
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Patch from Bellido Nicolas
The AAED-2000 is equiped with an 640x480 LCD.
This adds the parameters that will be passed to the AAEC-2000 platform code.
Signed-off-by: Nicolas Bellido <ml@acolin.be>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Patch from Bellido Nicolas
The AAEC-2000 has an ARM PrimeCell PL110 Color LCD Controller.
This patch contains the platform glue that will be used by specific boards.
Signed-off-by: Nicolas Bellido <ml@acolin.be>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Patch from Bellido Nicolas
Here is a preliminary clock interface support for the AAEC-2000.
Signed-off-by: Nicolas Bellido <ml@acolin.be>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Patch from Bellido Nicolas
This adds platform code for MTD devices on AAEC-2000.
Signed-off-by: Nicolas Bellido <ml@acolin.be>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Patch from Bellido Nicolas
linux/config.h is not necessary in hardware.h, while asm/sizes.h and asm/arch//aaec2000.h will be used later.
Signed-off-by: Nicolas Bellido <ml@acolin.be>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Patch from Bellido Nicolas
The AAED-2000 board has GPIO pins on an external port.
This patch adds the defines, and do the necessary mapping.
Signed-off-by: Nicolas Bellido <ml@acolin.be>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Patch from Bellido Nicolas
Add defines for GPIO registers on the AAEC-2000 processor.
Signed-off-by: Nicolas Bellido <ml@acolin.be>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Patch from Nicolas Pitre
This is the PXA2xx common IRDA driver, plus platform support
for Lubbock and Mainstone.
Signed-off-by: Nicolas Pitre <nico@cam.org>
Acked-by: Jean Tourrilhes <jt@hpl.hp.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Patch from Nicolas Pitre
From: Daniel Jacobowitz <dan@debian.org>
> I also fixed a bug that confused me greatly while trying to debug: one
> SIGILL has long been a SIGSEGV because of some broken RISCOS
> compatibility code.
Signed-off-by: Nicolas Pitre <nico@cam.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Patch from Erik Hovland
I noticed that the same typo (i before c in associated) showed up twice
in the file kernel/include/linux/mmc/mmc.h.
This patch fixes both of the instances I found with this mistake. The
typos are in comments and should have no affect on working code.
E
Signed-off-by: Erik Hovland <erik@hovland.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Patch from Jon Ringle
This adds support for the RTC and nvram on the Comdial MP1000
Signed-off-by: Jon Ringle
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Patch from Todd Poynor
Add symbols for PXA2xx PWRMODE register M field that selects low-power
mode, replace unadorned constants. Honor power mode parameter of
pxa_cpu_suspend(mode), no longer force to 3 (sleep). Full Deep Sleep
low-power mode support for PXA27x is pending generic PM interfaces to
select more than 2 suspend-to-RAM-style power modes, but this is
expected soon. This can be hardcoded in the meantime by replacing the
pxa_cpu_suspend() parameter value. From David Burrage and Todd Poynor.
Try #2 removes one of the register copies and moves the code to save the
pxa_cpu_suspend parameter to immediately surround the call that requires
the parameter value be preserved.
Signed-off-by: Todd Poynor <tpoynor@mvista.com>
Signed-off-by: Nicolas Pitre <nico@cam.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Patch from Jon Ringle
This patch gives support for the CS8900A ethernet chip on the Comdial MP1000
Signed-off-by: Jon Ringle
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Patch from Jon Ringle
Updated 2898/1 per comments:
- Removed fixup
- Moved code in mach-mp1000/ to mach-clps711x/
- Cleaned up code in mp1000-seprom.c. Eliminated code that displayed the contents of the eeprom
Please comment.
Signed-off-by: Jon Ringle
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
