RFC 6864 states that the IPv4 ID field MUST NOT be used for purposes other
than fragmentation and reassembly. Currently we are looking at this field
as a way of identifying what frames can be aggregated and which cannot for
GRO. While this is valid for frames that do not have DF set, it is invalid
to do so if the bit is set.
In addition we were generating IPv4 ID collisions when 2 or more flows were
interleaved over the same tunnel. To prevent that we store the result of
all IP ID checks via a "|=" instead of overwriting previous values.
With this patch we support two different approaches for the IP ID field.
The first is a non-incrementing IP ID with DF bit set. In such a case we
simply won't write to the flush_id field in the GRO context block. The
other option is the legacy option in which the IP ID must increment by 1
for every packet we aggregate.
In the case of the non-incrementing IP ID we will end up losing the data
that the IP ID is fixed. However as per RFC 6864 we should be able to
write any value into the IP ID when the DF bit is set so this should cause
minimal harm.
v2: Updated patch so that we now only support one of two options. Either
the IP ID is fixed with DF bit set, or the IP ID is incrementing. That
allows us to support the fixed ID case as occurs with IPv6 to IPv4
header translation and what is likely already out there for some
devices with tunnel headers.
CRs-Fixed: 1017614
Change-Id: I01065135889697dd8512ced09b8e1939e0fb645b
Signed-off-by: Alexander Duyck <aduyck@mirantis.com>
Patch-mainline: netdev @ April 4, 2016, 4:31 p.m
Signed-off-by: Subash Abhinov Kasiviswanathan <subashab@codeaurora.org>
This reverts commit 9d6fd2c3e9 ("Merge remote-tracking branch
'msm-4.4/tmp-510d0a3f' into msm-4.4"), because it breaks the
dump parsing tools due to kernel can be loaded anywhere in the memory
now and not fixed at linear mapping.
Change-Id: Id416f0a249d803442847d09ac47781147b0d0ee6
Signed-off-by: Trilok Soni <tsoni@codeaurora.org>
Add support for adjusting volume when DSD (Direct Stream
Digital) audio playback is in progress.
Change-Id: Ica51d40911d16059e8af21c60794b35c68bb695d
Signed-off-by: Phani Kumar Uppalapati <phaniu@codeaurora.org>
Add DAPM (Dynamic Audio Power Management) widgets and
routing to enable support for DSD (Direct Stream Digital)
audio playback on wcd934x codec.
Change-Id: I06e1b0134cea58adedbd9113a51529b2b73da835
Signed-off-by: Phani Kumar Uppalapati <phaniu@codeaurora.org>
WCD934X supports mixing of integer sample rate clips with
fractional sample rate clips using ASRC(asynchronous sample
rate converter) block. Add support to use ASRC block in codec.
CRs-Fixed: 1054643
Change-Id: I3a04cc902c74b49e1d40c5a52acbf1f7c907c34e
Signed-off-by: Vidyakumar Athota <vathota@codeaurora.org>
Add support to enable codec MCLK2 which is used for
44.1KHz and its multiples sample rate audio playback.
CRs-Fixed: 1054643
Change-Id: Id157439b2a46ac4fa54b4a768f9555cf390399b5
Signed-off-by: Phani Kumar Uppalapati <phaniu@codeaurora.org>
