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Improves the ability of a malware protection program
to detect anomalies in various activities. It records
task activities in a log and rates the actions
according to how a typical user would use the tools.
Change-Id: I976bc97f57215f173b046326b5f905522d785288
Signed-off-by: Mona Hossain <mhossain@codeaurora.org>
Signed-off-by: William Clark <wclark@codeaurora.org>
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This reverts commit 8125696991194aacb1173b6e8196d19098b44e17.
The commit"cfg80211/mac80211: disconnect on suspend" forces disconnection
on wlan interfaces if wake on wireless is not enabled from the user space.
Wake on Wireless is enabled by default in wlan driver (CLD) and cfg80211
layer never aware of wake on wirless enabled status done in wlan driver.
To avoid the disconnection while going to suspend and keep wlan driver
in WOW mode by default, the commit "cfg80211/mac80211: disconnect on
suspend" should be reverted.
CRs-Fixed: 540571
Change-Id: I483fe0530f9f00c338680416449215af326e3df1
Signed-off-by: Ganesh Kondabattini <ganeshk@codeaurora.org>
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This reverts commit f04c22033c25f71617ac62bcfe75698baa17a0b8.
The commit "cfg80211: export interface stopping function" exports a new
cfg80211_stop_iface() function, intended for driver internal interface
combination management and channel switching. The new function is used
by commit "cfg80211/mac80211: disconnect on suspend" which is reverted
in order to avoid the disconnection while going to suspend. Hence the
commit "cfg80211: export interface stopping function" should be reverted.
CRs-Fixed: 540571
Signed-off-by: Ahmad Kholaif <akholaif@codeaurora.org>
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AP stopped interface can be used to indicate that the AP mode has
stopped functioning, WLAN driver may have encountered errors that has
forced the driver to stop the AP mode.
When the driver is in P2P-Go mode, and when it goes thru automatic
recovery from firmware crashes, it uses this interface to notify the
userspace that the group has been deleted.
CRs-Fixed: 453060
Change-Id: Ifcd8d4f0c0b26f56a56fb8560aa474297b7521d4
Signed-off-by: Sameer Thalappil <sameert@codeaurora.org>
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When flag WIPHY_FLAG_DFS_OFFLOAD is defined, the driver would handle
all the DFS related operations. Therefore the kernel needs to ignore
the DFS state that it uses to block the userspace calls to the driver
through cfg80211 APIs. Also it should treat the userspace calls to
start radar detection as a no-op.
Change-Id: I9dd2076945581ca67e54dfc96dd3dbc526c6f0a2
CRs-Fixed: 630797
Signed-off-by: Amar Singhal <asinghal@codeaurora.org>
[neelanshm@codeaurora.org: Do not include the unrequired
change in util.c]
Signed-off-by: Neelansh Mittal <neelanshm@codeaurora.org>
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This commit merges the following commits into one snapshot up to
msm-3.18 commit e70ad0cd5efdd9dc91a77dcdac31d6132e1315c1.
8e465d5 msm: wlan: Update tx power limits of country UA
296bec0 msm: wlan: Update regulatory database for some countries
c0fc361 msm: wlan: Fix the DFS region for Japan
6f1cca3 msm: wlan: Update the wifi regulatory database for TW
2c5867a msm: wlan: Modify JAPAN regulatory rules
e430543 regdb: Update database with 60GHz for Japan
ccce8fb msm: wlan: Correct the parsing of db.txt
acf74a2 cfg80211: add space after the b/w in db.txt
b2b5b4e msm: wlan: update the dfs_region to db.txt
36c64bd msm: wlan: Add country KP
da5d9cb msm: wlan: Update db.txt for regulatory support.
Signed-off-by: Ryan Hsu <ryanhsu@codeaurora.org>
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Taking the gratuitous ARP/unsolicited NA detection code from
mwifiex (but fixing it up to not have read-after-skb-end bugs),
implement the ability for userspace to request the behaviour
required by HS2.0 to drop gratuitous ARP and unsolicited NA
frames when proxy ARP service is enabled on the AP. Since this
behaviour is only mandatory for HS2.0 and may not always be
desired, make it optional - modify cfg80211/nl80211 for that.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Git-commit: be9efdecf8ecdcc6d2221845482e7359b33a603b
Git-repo : git://git.kernel.org/pub/scm/linux/kernel/git/jberg/mac80211-next.git
Change-Id: I1e4083a2327c121073226aa6b75bb6b5b97cec00
CRs-fixed: 621827
[akholaif@codeaurora.org: only picked up the declaration
and definition of cfg80211_is_gratuitous_arp_unsolicited_na()]
Signed-off-by: Ahmad Kholaif <akholaif@codeaurora.org>
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This is to help the hardware configured in world
roaming mode to save power when not connected to
any AP.
CRs-Fixed: 542802
Change-Id: Ia643d0e9848dcd486832973bd6dd186edd7bd4ea
Signed-off-by: Mihir Shete <smihir@codeaurora.org>
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Remove duplicate decalaration and initialization of a structure
with conflicting types.
Signed-off-by: Jeevan Shriram <jshriram@codeaurora.org>
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Added new procfs flag to toggle the automatic addition of prefix
routes on a per device basis. The new flag is accept_ra_prefix_route.
Defaults to 1 as to not break existing behavior.
CRs-Fixed: 435320
Change-Id: If25493890c7531c27f5b2c4855afebbbbf5d072a
Acked-by: Harout S. Hedeshian <harouth@qti.qualcomm.com>
Signed-off-by: Tianyi Gou <tgou@codeaurora.org>
[subashab@codeaurora.org: resolve trivial merge conflicts]
Signed-off-by: Subash Abhinov Kasiviswanathan <subashab@codeaurora.org>
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added a null check to prevent a null pointer derefence of hard idle
timer
Change-Id: Id1e49d5b109d8c71947723b252f4d2b6f3ebc35f
CRs-Fixed: 880124
Signed-off-by: Susheel Yadav Yadagiri <syadagir@codeaurora.org>
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idletimer_resume() assumes that the PM_SUSPEND_PREPARE notifier is sent
before PM_POST_SUSPEND so that timer->last_suspend_time is initialized.
However, it is possible for PM_POST_SUSPEND to be sent first if there is an
error returned from another driver's PM_SUSPEND_PREPARE notifier.
Add a flag indicating whether the current value of timer->last_suspend is
valid.
Detected with CONFIG_SLUB_DEBUG & CONFIG_DEBUG_SPINLOCK in arm64. The
timestamp lock is held for more than a minute while
set_normalized_timespec() proceses the poisoned timer->last_suspend_time
argument.
Change-Id: I95328b0ac85dba819ff9cef751c3d07300c232f1
Signed-off-by: Patrick Daly <pdaly@codeaurora.org>
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Force any pending hardidletimer_tg_work() to complete before freeing
the associated work struct.
CRs-Fixed: 814707
Change-Id: I57b2f0dcd24f05ddb472d6007525d1722f9fe0b0
Signed-off-by: Patrick Daly <pdaly@codeaurora.org>
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This patch implements a hardidletimer Xtables target that can be used to
identify when interfaces have been idle for a certain period of time.
Timers are identified by labels and are created when a rule is set with a
new label. The rules also take a timeout value (in seconds) as an option.
If more than one rule uses the same timer label, the timer will be
restarted whenever any of the rules get a hit.
One entry for each timer is created in sysfs. This attribute contains the
timer remaining for the timer to expire. The attributes are located under
the xt_idletimer class:
/sys/class/xt_hardidletimer/timers/<label>
When the timer expires, the target module sends a sysfs notification to the
userspace, which can then decide what to do (eg. disconnect to save power)
Compared to xt_IDLETIMER, xt_HARDIDLETIMER can send notifications when CPU
is in suspend too, to notify the timer expiry
Change-Id: I1723d44e02df864d63da7550766ea7d763076de2
Signed-off-by: Bhavya Sokke Mallikarjunappa <bsokke@codeaurora.org>
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tc_qdisc_flow_control() incorrectly assumes that all queue disciplines
implement the change() callback in Qdisc_ops. If the flow control function
is called a queue that does not implement change(), we try to jump to a
null function pointer resulting in a panic. The flow control function
does require that the queue discipline support change() in order to
enable/disable the queue. Now we will check if the queue to do flow
control on supports the required funcionality and will WARN_ONCE and
return if the requirements are not met.
[<ffffffc000c5c028>] panic+0x28c
[<ffffffc0000889f4>] die+0x238
[<ffffffc000088a6c>] arm64_notify_die+0x4c
[<ffffffc000088d00>] bad_mode+0xa8
[<ffffffc000ab9ab8>] tc_qdisc_flow_control+0x98
[<ffffffc000c506e8>] rmnet_vnd_ioctl+0x230
[<ffffffc000aac6fc>] dev_ifsioc+0x2a0
[<ffffffc000aacde8>] dev_ioctl+0x644
[<ffffffc000a7db4c>] sock_ioctl+0x4c
[<ffffffc0001af548>] do_vfs_ioctl+0x4b4
[<ffffffc0001af684>] SyS_ioctl+0x60
[<ffffffc0000854b0>] el0_svc_naked+0x24
Change-Id: I85ca324e57814b6c0eac48d2e076e861ab32c260
Signed-off-by: Harout Hedeshian <harouth@codeaurora.org>
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A low cost method of determining GRO statistics is required. This
change introduces a new counter which tracks whenever GRO coalesces
ingress packets. The counter is per-CPU and exposed in
/proc/net/softnet_stat as the last column of data. No user space
impact is expected as a result of this change. However, this change
should be reverted if legacy tools have problems with the new column
in softnet_stat.
Change-Id: I05965c0cb150947935d5977884cc4d583b37131d
Signed-off-by: Harout Hedeshian <harouth@codeaurora.org>
[subashab@codeaurora.org: resolve trivial merge conflicts]
Signed-off-by: Subash Abhinov Kasiviswanathan <subashab@codeaurora.org>
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Reserved ports may have some special use cases which are not suitable
for use by general userspace applications. Currently, ports specified
in ip_local_reserved_ports will not be returned only in case of
automatic port assignment.
Add a boolean sysctl flag 'reserved_port_bind'. Default value is 1
which preserves the existing behavior. Setting the value to 0 will
prevent userspace applications from binding to these ports even when
they are explicitly requested.
BUG=20663075
Change-Id: Ib1071ca5bd437cd3c4f71b56147e4858f3b9ebec
Signed-off-by: Subash Abhinov Kasiviswanathan <subashab@codeaurora.org>
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Modify the printout functions for IPv4-TCP, IPv4-UDP, IPv6-TCP, IPv6-UDP,
such that the state for the socket is printed as state = state | 0x80.
The actual socket state is unmodified. This change is required for the
user space to determine whether a socket is a transparent socket, and
to determine if the socket holder intends to consume packets locally
or to forward them to an external processor.
Change-Id: I2ca403b4c2c74e7ddcdbda53e4ba43613bae9c42
Signed-off-by: Harout Hedeshian <harouth@codeaurora.org>
[subashab@codeaurora.org: resolve trivial merge conflicts]
Signed-off-by: Subash Abhinov Kasiviswanathan <subashab@codeaurora.org>
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Commit 43e0e31e2d6e ("net: sockev: filtering non INET socket events")
from Krishnan introduced incorrect conditional logic which caused
the socket address families to be incorrectly filtered. This
patch corrects the logic.
CRs-Fixed: 830947
Cc: Krishnan Ramachandran <kramacha@qti.qualcomm.com>
Acked-by: Devesh Bisht <dbisht@qti.qualcomm.com>
Change-Id: I40a001a69d5aab25f7f97a7378aceae301fd762a
Signed-off-by: Harout Hedeshian <harouth@codeaurora.org>
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Cloned packets arriving in ingress path can cause issues with GRO
since the skb shared info is garbled.
Warn once if a cloned packet is queued up to the network stack.
CRs-Fixed: 823275
Change-Id: I049f04f39b3d1338838560e08c93a973de427fc0
Signed-off-by: Subash Abhinov Kasiviswanathan <subashab@codeaurora.org>
[subashab@codeaurora.org: resolve trivial merge conflicts]
Signed-off-by: Subash Abhinov Kasiviswanathan <subashab@codeaurora.org>
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UDP IPv4 encapsulation sockets will have their state printed as 0xF0
binary ORed with the actual state such that they can be distinguished
from regular UDP sockets in /proc/net/udp.
CRs-Fixed: 821341
Change-Id: I240ab1526a4280e5e996d9577a904581684fc84a
Signed-off-by: Harout Hedeshian <harouth@codeaurora.org>
[subashab@codeaurora.org: resolve trivial merge conflicts]
Signed-off-by: Subash Abhinov Kasiviswanathan <subashab@codeaurora.org>
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Too many socket events are generated by netlink socket. Filtering out
unwanted socket events.
Change-Id: I3a4d7e14843cf72d6af2d948113b27928ed01adb
Acked-by: Krishnan Ramachandran <kramacha@qti.qualcomm.com>
Signed-off-by: Harout Hedeshian <harouth@codeaurora.org>
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Ensure that BIND and LISTEN syscalls do fput_light AFTER sockev notifier
callback has returned. Also, increase refcount on sock->sk (if available)
before invoking the notifier callback. Prevent crash due to use-after-free.
[<c0891d5c>] (sockev_client_cb+0xfc/0x1e4) from [<c0a273a4>] (notifier_cal
[<c0a273a4>] (notifier_call_chain+0x44/0x84) from [<c01422cc>] (__blocking
[<c01422cc>] (__blocking_notifier_call_chain+0x48/0x60) from [<c01422fc>]
[<c01422fc>] (blocking_notifier_call_chain+0x18/0x20) from [<c0865968>] (S
[<c0865968>] (SyS_bind+0xb0/0xe8) from [<c0105ba0>] (ret_fast_syscall+0x0/
CRs-Fixed: 787283
Change-Id: I2de65929b22c58637692cf582b6b46b11713494e
Signed-off-by: Harout Hedeshian <harouth@codeaurora.org>
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Added module which subscribes to socket notifier events. Notifier events
are then converted to a multicast netlink message for user space
applications to consume.
CRs-Fixed: 626021
Change-Id: Id5c6808d972b69f5f065d7fba9094e75c6ad0b2c
Signed-off-by: Harout Hedeshian <harouth@codeaurora.org>
[subashab@codeaurora.org: resolve trivial merge conflicts]
Signed-off-by: Subash Abhinov Kasiviswanathan <subashab@codeaurora.org>
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Allows other areas in the kernel to register notifier callbacks which
get invoked whenever something performs an administrative action on a
socket. This patch adds hooks in socket(), bind(), listen(), accept(),
shutdown().
CRs-Fixed: 626021
Change-Id: I4ae99cb2206d7c4eddba69757335c18d10143045
Signed-off-by: Harout Hedeshian <harouth@codeaurora.org>
[subashab@codeaurora.org: resolve trivial merge conflicts]
Signed-off-by: Subash Abhinov Kasiviswanathan <subashab@codeaurora.org>
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More efficiently utilize multiple cores when using MAP encoded frames.
RPS flow dissector now appropriately decodes IPv4 and IPv6 frames with
MAP headers prepended.
CRs-Fixed: 681280
Change-Id: Ia4dde47fcc0f3436dcaa71a5160c0a59fe7ed53a
Signed-off-by: Harout Hedeshian <harouth@codeaurora.org>
[subashab@codeaurora.org: resolve trivial merge conflicts]
Signed-off-by: Subash Abhinov Kasiviswanathan <subashab@codeaurora.org>
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The networking module uses iov_iter library to manage the vector buffers
from user-space. Use iov_iter accessor functions to copy the data from/to
the user-space vector buffers.
Signed-off-by: Karthikeyan Ramasubramanian <kramasub@codeaurora.org>
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Update the function signature of sendmsg and recvmsg operations.
Pass the kernel socket flag to the updated socket object allocation
function.
Signed-off-by: Karthikeyan Ramasubramanian <kramasub@codeaurora.org>
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qmi_encdec.h header file is no longer required in IPC Router. Remove
including that header file.
Signed-off-by: Karthikeyan Ramasubramanian <kramasub@codeaurora.org>
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This snapshot is taken as of msm-3.18 commit e70ad0cd (Promotion of
kernel.lnx.3.18-151201.)
Signed-off-by: Karthikeyan Ramasubramanian <kramasub@codeaurora.org>
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RAWIP devices require the device IID to be used for permanent
addresses only, and random IIDs to be generated for temporary
addresses. Legacy user-space applications rely on this behavior
CRs-Fixed: 860791
Change-Id: I007bdf8bcfdce687ad31612fed9d9c769321edb9
Signed-off-by: Harout Hedeshian <harouth@codeaurora.org>
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Add to support for msm_rmnet device using ARPHRD_RAWIP.
Change-Id: Ie1e5433f440b26b644cccb18083ef325129f7942
Acked-by: Andrew Richardson <randrew@qualcomm.com>
Signed-off-by: Abhijeet Dharmapurikar <adharmap@codeaurora.org>
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Commit 32dce968dd987ad ("ipv6: Allow for partial checksums on non-ufo
packets) adds support for checksum offload in hardware for single
UDP packets. As a result, the custom NETIF_F_IPV6_UDP_CSUM feature
is no longer needed.
Signed-off-by: Subash Abhinov Kasiviswanathan <subashab@codeaurora.org>
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Commit 47405a253da4d8c ("percpu: Remove __this_cpu_ptr") and commit
6c51ec4d18d24b2 ("percpu: remove __get_cpu_var and __raw_get_cpu_var
macros") removed __this_cpu_ptr which is needed to access current
NAPI. Use this_cpu_ptr instead.
Signed-off-by: Subash Abhinov Kasiviswanathan <subashab@codeaurora.org>
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Commit 69235aa80090 ("net: Remove the get current NAPI context API")
removed the definition of get_current_napi_context() as rmnet_data
was no longer using it. However, the rmnet_data change to use its
NAPI in multiple contexts was prone to race in hotplug scenarios.
Add back get_current_napi_context() and current_napi to the
softnet_data struct
CRs-Fixed: 966095
Change-Id: I7cf1c5e39a5ccbd7a74a096b11efd179a4d0d034
Signed-off-by: Subash Abhinov Kasiviswanathan <subashab@codeaurora.org>
[subashab@codeaurora.org: resolve trivial merge conflicts]
Signed-off-by: Subash Abhinov Kasiviswanathan <subashab@codeaurora.org>
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The PRIO qdisc supports flow control, such that packet
dequeue can be disabled based on boolean flag 'enable_flow'.
When flow is re-enabled, the latency for new packets
arriving at network driver is high. To reduce the delay in
scheduling packets, the qdisc will now invoke
__netif_schedule() to expedite dequeue. This significantly
reduces the latency of packets arriving at network driver.
Change-Id: Ic5fe3faf86f177300d3018b9f60974ba3811641c
CRs-Fixed: 355156
Acked-by: Jimi Shah <jimis@qualcomm.com>
Signed-off-by: Tianyi Gou <tgou@codeaurora.org>
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Changed the tc_qdisc_flow_control API to return the size of the
qdisc in order to be able to collect data on the size of the
qdisc before doing flow control operations. This is required to effectively
diagnose the state of the queues when debugging flow control.
CRs-Fixed: 657414
Change-Id: I4aff2157410e1170de2d0791757ed2e12830a2db
Acked-by: Sivan Reinstein <sivanr@qti.qualcomm.com>
Signed-off-by: Harout Hedeshian <harouth@codeaurora.org>
[subashab@codeaurora.org: resolve trivial merge conflicts]
Signed-off-by: Subash Abhinov Kasiviswanathan <subashab@codeaurora.org>
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Add enable_flow flag to the prio qdisc. Packet flow is
enabled by default, but can be disabled from userspace
(e.g. IPROUTE2 tc tool). This allows for suspending packet
dequeue on a per-qdisc basis, which is needed to supprot
Quality of Service (QOS) when using WWAN modem.
Change-Id: I932f296be946f1acc3b00c7d8569bbb733d33622
Acked-by: Andrew Richardson <randrew@qualcomm.com>
CRs-Fixed: 283471
Signed-off-by: Tianyi Gou <tgou@codeaurora.org>
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Export a function from sch_api.c that will look up
desired qdisc and call it's registered change function
to enable/disable flow.
Change-Id: I5b6dc7a6fd2b09b796c92b3770ba83423d19c864
CRs-Fixed: 355156
Acked-by: Jimi Shah <jimis@qualcomm.com>
Signed-off-by: Tianyi Gou <tgou@codeaurora.org>
[subashab@codeaurora.org: resolve trivial merge conflicts]
Signed-off-by: Subash Abhinov Kasiviswanathan <subashab@codeaurora.org>
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Commit 28207b510dca ("net: rmnet_data: Add NAPI context for rmnet_data
devices") added a NAPI struct per rmnet_data device. This was to
ensure that the NAPI struct is always available even if there was a
hotplug. However, this seems to be leading to some races where the
NAPI struct is accessed concurrently across cores.
The race here is between napi_gro_receive on one core with
napi_complete running on the other accessing the same NAPI struct.
If napi_gro_receive runs slightly earlier, napi_complete would see
that the napi->gro_list would be non NULL in __napi_complete even
though it had cleared earlier and would lead to a BUG.
If napi_complete runs slightly earlier, napi_gro_receive would
dereference a NULL pointer even though it had assigned an skb to
napi->gro_list.
Fix this by using the per cpu backlog struct as the NAPI struct for
queuing packets to GRO engine. Access across cores would not be a
problem in case of hotplug as they would use core specific structures.
CRs-Fixed: 966095
Change-Id: I831df5b93cc6ee77355f2e98af89efcffe825bd8
Signed-off-by: Subash Abhinov Kasiviswanathan <subashab@codeaurora.org>
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This patch enables hardware device features such as
NETIF_F_SG NETIF_F_GSO NETIF_F_GSO_UDP_TUNNEL
NETIF_F_GSO_UDP_TUNNEL_CSUM. This patch also ensures
to skip padding(to align length to word boundaries)
for outgoing non linear skbs.
This patch also adds a new ioctl interface
RMNET_IOCTL_GET_SG_SUPPORT to query the physical
network devices for Scatter Gather support.
Change-Id: I9788d75c249ab2dac5b598dad131c0692ed84e4d
Acked-by: Abhishek Chauhan <abchauha@qti.qualcomm.com>
Signed-off-by: Ravinder Konka <rkonka@codeaurora.org>
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Checksum offload is supported in MAPv3/v4. Add the device feature
to indicate this support.
Change-Id: I89caf6d9029cd483759404542681621909de70a3
Signed-off-by: Subash Abhinov Kasiviswanathan <subashab@codeaurora.org>
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Hardware does not handle pad bytes in egress packets when uplink
aggregation is not enabled. This is due to the translation support
added on hardware for MAPv4.
Change-Id: Ic246a4548561450035d5252221032d72eff44518
Signed-off-by: Subash Abhinov Kasiviswanathan <subashab@codeaurora.org>
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Add the MAPv4 ingress and data format handlers. MAPv4 requires the
checksum for uplink TCP and UDP packets to be 1's complemented
before passing the packet onto the physical netdevice.
This workaround is needed due to failures seen in hardware while
processing translated packets.
Change-Id: Ib79382fa7e8b2bd0c1adbe68b8de75f1602df10b
Signed-off-by: Subash Abhinov Kasiviswanathan <subashab@codeaurora.org>
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Commit 1a37e412a0225fc ("net: Use 16bits for *_headers fields of
struct skbuff") changes the data type of mac_header from pointer to
__u16. As a result, it is invalid to assign data to mac_header
in architectures where NET_SKBUFF_DATA_USES_OFFSET is 0.
Change-Id: I97ce04e3747983839d3908ca8111fd588c8e43a2
Signed-off-by: Subash Abhinov Kasiviswanathan <subashab@codeaurora.org>
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While running a UDP test using gro handler, there was a slight
increase in MIPS observed. This is because all UDP packets passed
through napi_gro_receive need to be checked if it is an encapsulated
UDP packet which could actually be coalesced and processed further.
As of now, clients of rmnet_data do not support this and we can
save MIPS on this by passing only TCP packets through the GRO
handler. All non TCP packets will directly be passed directly to
the network stack. This also helps us to avoid an atomic operation
unnecessarily when GRO path is not exercised.
There is 1% savings in MIPS observed when using a single stream
UDP DL connection at 300Mbps.
Change-Id: Ie601000de21afeacfca93f23117aeb0f7cefda98
Signed-off-by: Subash Abhinov Kasiviswanathan <subashab@codeaurora.org>
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This was originally added for debug and is no longer needed.
Change-Id: I9780e86ff0db31eaa13f2470c19f1424db3311b8
Signed-off-by: Subash Abhinov Kasiviswanathan <subashab@codeaurora.org>
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This is needed so that we can pass the virtual netdevice NAPI struct
to napi_gro_receive rather than relying on the current CPU NAPI
context which can cause issues due to CPU hotplug.
Change-Id: I41977c3a3a51212aa2fe092427b0ca924045b477
Signed-off-by: Subash Abhinov Kasiviswanathan <subashab@codeaurora.org>
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It is not guaranteed that MAP commands will be in their own frame. Some
commands may be embedded in a large aggregated frame of datagrams. This
patch forces MAP command processing to occur after the deaggregation
routing. This has the side-effect of incurring a malloc/memcpy latency
penalty for each MAP command. This also introduces a side-effect where
every packet after de-aggregation will need to be inspected for the
cmd bit.
Change-Id: Icc5ad1e7d622a35883f858c2c132c9679f43c79e
Signed-off-by: Harout Hedeshian <harouth@codeaurora.org>
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Commit 351638e7deeed2e ("net: pass info struct via netdevice notifier")
adds support for passing a custom struct rather than a net device.
BUG: KASan: out of bounds on stack in rmnet_config_notify_cb+0x11c/0x728i
at addr ffffffc01232fb48
Read of size 8 by task WifiStateMachin/2268
page:ffffffbb056ce3e8 count:0 mapcount:0 mapping: (null) index:0x2
flags: 0x0()
page dumped because: kasan: bad access detected
CPU: 2 PID: 2268 Comm: WifiStateMachin Tainted: G W O
3.18.0-g092b7e8-dirty #6
Hardware name: Qualcomm Technologies, Inc. MSM 8996 v2 + PMI8994 MTP (DT)
Call trace:
[<ffffffc000089c70>] dump_backtrace+0x0/0x1c4
[<ffffffc000089e44>] show_stack+0x10/0x1c
[<ffffffc0010cae0c>] dump_stack+0x74/0xc8
[<ffffffc00020e360>] kasan_report_error+0x2ac/0x3d0
[<ffffffc00020e560>] kasan_report+0x34/0x40
[<ffffffc00020d520>] __asan_load8+0x84/0x90
[<ffffffc0010ba434>] rmnet_config_notify_cb+0x118/0x728
[<ffffffc0000d1858>] notifier_call_chain+0x68/0xb4
[<ffffffc0000d1940>] raw_notifier_call_chain+0x10/0x1c
[<ffffffc000e2a39c>] call_netdevice_notifiers_info+0x60/0x74
[<ffffffc000e2a418>] call_netdevice_notifiers+0x68/0x84
[<ffffffc000e367c8>] netdev_run_todo+0x100/0x348
[<ffffffc000e4545c>] rtnl_unlock+0x8/0x14
[<ffffffc000e31a4c>] unregister_netdev+0x20/0x30
[<ffffffbffc02420c>] hdd_cleanup_adapter+0x88/0x9c [wlan]
[<ffffffbffc026630>] hdd_close_all_adapters+0xc4/0x128 [wlan]
[<ffffffbffc02a8d4>] hdd_wlan_exit+0x660/0x744 [wlan]
[<ffffffbffc02c388>] __hdd_wlan_exit+0x104/0x138 [wlan]
[<ffffffbffc284410>] hif_pci_remove+0x68/0x114 [wlan]
[<ffffffc0007f45c8>] cnss_wlan_unregister_driver+0xa0/0x21c
[<ffffffbffc286118>] hif_unregister_driver+0x14/0x20 [wlan]
[<ffffffbffc2a0288>] hdd_module_exit+0x1b4/0x218 [wlan]
[<ffffffc00014f804>] SyS_delete_module+0x1f4/0x290
Memory state around the buggy address:
ffffffc01232fa00: f1 f1 00 f4 f4 f4 f3 f3 f3 f3 00 00 00 00 00 00
ffffffc01232fa80: 00 00 00 00 00 00 00 00 00 00 f1 f1 f1 f1 00 f4
>ffffffc01232fb00: f4 f4 f2 f2 f2 f2 00 f4 f4 f4 f2 f2 f2 f2 00 00
^
ffffffc01232fb80: 00 00 00 00 00 00 f3 f3 f3 f3 00 00 00 00 00 00
ffffffc01232fc00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
==================================================================
Update the netdevice callback to handle this change.
Also remove a redundant check for associated devices.
CRs-Fixed: 865889
Change-Id: I96461807631447aef84eb3eac906057e3ce6827c
Signed-off-by: Subash Abhinov Kasiviswanathan <subashab@codeaurora.org>
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