Enable rmnet core and ctl drivers and update the kernel APIs to match
the appropriate kernel.
This change also adds support for the inclusion of the IPA kernel
headers from a non-core kernel location. This is achieved using the
flag KBUILD_REQUIRED_KOS.
Additionally, remove all deprecated code.
CRs-Fixed: 3311558
Change-Id: I9317f53ca8b1a370b6a5eb86734057399aee1d48
Signed-off-by: Subash Abhinov Kasiviswanathan <quic_subashab@quicinc.com>
Add a hook into shs for LL traffic to go into.
CRs-Fixed: 3229047
Change-Id: I4b81c82f77d3aaf685e6c50106cd6e28d7c94753
Signed-off-by: Raul Martinez <quic_mraul@quicinc.com>
This is needed to avoid any out of order transmits between
the UL aggregation workqueue context and the direct transmits from
application context. irq_save / restore variant of the lock cannot
be used as dev_queue_xmit() requires interrupts to be enabled.
CRs-Fixed: 3122333
Change-Id: Ie1020bf17e8c1d0e8fc14e999c21c3e007f4f183
Signed-off-by: Subash Abhinov Kasiviswanathan <quic_subashab@quicinc.com>
Add new ingress and egress hooks to be used by rmnet modules.
CRs-Fixed: 3012130
Change-Id: I934a3933d4ea89ba1c4f5ef2f2589baf66c2d225
Signed-off-by: Subash Abhinov Kasiviswanathan <quic_subashab@quicinc.com>
Descriptors that came from coalesced frames will now carry usage info.
In order to prevent overcoutning, only the first segment from each frame
will report this information; the rest will report 0.
This allows a simple calculation of summing the coal_bytes and coal_bufsize
values reported and dividing to determine the total ratio over a given
period.
These values will be reported in the SKB via a new Control Block struct,
accessable via RMNET_SKB_CB(skb);
Change-Id: I8ea31921afa3afad4d2c570ec5728118bd635b86
Signed-off-by: Sean Tranchetti <stranche@codeaurora.org>
Add traces to track TCP and UDP non fragmented packets in uplink and downlink.
CRs-Fixed: 3002908
Change-Id: I35643c38dff564964dcd9e04518cbe4655dd050b
Signed-off-by: Subash Abhinov Kasiviswanathan <subashab@codeaurora.org>
Steer packets from LLC to different CPU cores for rmnet processing
by assigning a different RX queue. Also bypass rmnet_offload and
rmnet_shs for LL packets.
Change-Id: I459dabe8dd02132614f0e2cf461c89274f18223c
Acked-by: Weiyi Chen <weiyic@qti.qualcomm.com>
Signed-off-by: Subash Abhinov Kasiviswanathan <subashab@codeaurora.org>
Allows the use of different uplink aggregation parameters for the
default and low-latency uplink aggregation states. To faciliate this,
both contexts now have their own page recycling elements instead of a
single port-wide list, as well as their own instance of the
rmnet_egress_agg_params struct.
To configure these paramters, a new netlink attribute has been created
for specifying which aggregation state the given IFLA_RMNET_UL_AGG_PARAMS
attribute should apply to. For compatibility with user space, the default
state will be chosen if this element is not provided.
Change-Id: Ia340bbb479d9427658a153a2019f4891da0b741c
Signed-off-by: Sean Tranchetti <stranche@codeaurora.org>
Allows the use of the LL channel on IPA based targetds. MHI specific
functionality is split into the new rmnet_ll_mhi.c file, and IPA is
placed in rmnet_ll_ipa.c. rmnet_ll.c works as a generic interface to the
core rmnet module, and handles calling specific functions in the active
HW module to provide the low latency channel functionality.
Change-Id: Id3e77b8433134872eba09818fc662fc109687d80
Signed-off-by: Sean Tranchetti <stranche@codeaurora.org>
Packets are now sent over a dedicated MHI channel when indicated by the
DFC driver.
New dedicated channel is controlled by rmnet driver. Buffers are allocated
and supplied to it as needed from a recyclable pool for RX on the channel,
and packets will be sent to it and freed manually once the channel
indicates that they have been sent.
Low latency packets can be aggregated like standard QMAP packets, but have
their own aggregation state to prevent mixing default and low latency
flows, and to allow each type of flow to use their own send functions
(i.e. dev_queue_xmit() versus rmnet_ll_send_skb()).
Low latency packets also have their own load-balancing scheme, and do not
need to use the SHS module for balancing. To facilitate this, we mark the
low latency packets with a non-zero priority value upon receipt from the
MHI chainnel and avoid sending any such marked packets to the SHS ingress
hook.
DFC has been updated with a new netlink message type to handle swapping a
list of bearers from one channel to another. The actual swap is performed
asynchronously, and separate netlink ACKs will be sent to the userspace
socket when the switch has been completed.
Change-Id: I93861d4b004f399ba203d76a71b2f01fa5c0d5d2
Signed-off-by: Sean Tranchetti <stranche@codeaurora.org>
This adds support for the new transmit offload header as well as
the handling needed for it in the core driver.
CRs-Fixed: 2810638
Change-Id: I8ce2e0772209faf3d585e7d9d8d56eceb695d586
Signed-off-by: Subash Abhinov Kasiviswanathan <subashab@codeaurora.org>
This brings the RmNet and DFC modules up to date with the 4.19 tip as of
commit 9b38611ea527 ("rmnet: Reduce synchronize_rcu calls").
As part of this, the rmnet_ctl driver was also incorporated, using commit
4ceee3aafb7d ("rmnet_ctl: Add IPC logging and optimizations")
Change-Id: Ic45d46074c7401dfed408c769cfb6462dac0d4ee
Signed-off-by: Sean Tranchetti <stranche@codeaurora.org>
Inital commit of rmnet_core net device driver in dlkm form
in datarmnet. This requires rmnet to be disabled in the
kernel and for it to be loaded before dependent modules.
CRs-Fixed: 2558810
Change-Id: I742e85033fa0999bf9069d43ce73ab9a622a8388
Acked-by: Raul Martinez <mraul@qti.qualcomm.com>
Signed-off-by: Subash Abhinov Kasiviswanathan <subashab@codeaurora.org>
