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In case of wide bandwidth (wider than 20MHz) used by IBSS,
scan all channels in chandef to be able to find neighboring
IBSS netwqworks that use the same overall channels but a different
control channel.
Signed-off-by: Janusz Dziedzic <janusz.dziedzic@tieto.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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In order to look up the RA station earlier to implement a TX
fastpath, factor out the lookup from ieee80211_build_hdr().
To always have a valid station pointer, also move some of the
checks into the new function.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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Indicating just the peer's capability is fairly pointless
if the local device doesn't support it. Make the variable
track both combined, and remove the 'local support' check
in the TX path.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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Louis reported that a static checker was complaining that
the 'dst' variable was set (multiple times) but not used.
This is due to a previous commit having removed the usage
(apparently erroneously), so add it back.
Fixes: a344d6778a98 ("mac80211: allow drivers to support NL80211_SCAN_FLAG_RANDOM_ADDR")
Reported-by: Louis Langholtz <lou_langholtz@me.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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This code is written using an anti-pattern called "success handling"
which makes it hard to read, especially if you are used to normal kernel
style. It should instead be written as a list of directives in a row
with branches for error handling.
(Basically copied from Dan's previous patch for CCM)
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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This code is written using an anti-pattern called "success handling"
which makes it hard to read, especially if you are used to normal kernel
style. It should instead be written as a list of directives in a row
with branches for error handling.
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Acked-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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Add new ID for ASUS N10 WiFi dongle.
Signed-off-by: Marek Vasut <marex@denx.de>
Tested-by: Marek Vasut <marex@denx.de>
Cc: Larry Finger <Larry.Finger@lwfinger.net>
Cc: John W. Linville <linville@tuxdriver.com>
Acked-by: Larry Finger <Larry.Finger@lwfinger.net>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
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Commit 8ade538bf39b ("mac80111: Add BIP-GMAC-128 and BIP-GMAC-256
ciphers") had the success return in incorrect place before the
crypto_aead_setauthsize() call which practically ended up skipping that
call unconditionally.
The missing call did not actually change any functionality since
GMAC_MIC_LEN (16) is identical to the maxauthsize in gcm(aes) and as
such, the default value used for the authsize parameter.
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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USB ID 2001:330d is used for a D-Link DWA-131.
Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Cc: Stable <stable@vger.kernel.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
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This will expose in /sys whether the ifname of a device is set by
userspace or generated by the kernel. The latter kind (wlanX, etc)
is not deterministic, so userspace needs to rename these devices
to names that are guaranteed to stay the same between reboots. The
former, however should never be renamed, so userspace needs to be
able to reliably tell the difference.
Similar functionality was introduced for the rtnetlink core in
commit 5517750f058e ("net: rtnetlink - make create_link take name_assign_type")
Signed-off-by: Tom Gundersen <teg@jklm.no>
Cc: Kalle Valo <kvalo@qca.qualcomm.com>
Cc: Brett Rudley <brudley@broadcom.com>
Cc: Arend van Spriel <arend@broadcom.com>
Cc: Franky (Zhenhui) Lin <frankyl@broadcom.com>
Cc: Hante Meuleman <meuleman@broadcom.com>
Cc: Johannes Berg <johannes@sipsolutions.net>
[reformat changelog to fit 72 cols]
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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This patch adds recovery mechanism for SDIO RX during SKB allocation
failures.
For allocation failures during multiport aggregation, we skip and drop RX
packets.
For single port read case, we will use preallocated card->mpa_rx.buf to
complete cmd53 read.
Now we terminate SDIO operations only upon cmd53 failures.
CC: James Cameron <quozl@laptop.org>
Signed-off-by: Zhaoyang Liu <liuzy@marvell.com>
Signed-off-by: Avinash Patil <patila@marvell.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
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Cancel all pending commands including scan commands and stop CAC
during cfg80211 suspend handler.
Signed-off-by: Avinash Patil <patila@marvell.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
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Signed-off-by: Michael Braun <michael-dev@fami-braun.de>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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"adapter->sleep_cfm" is always non-NULL at this point. Static checkers
complain that we already dereference it at the start of the function
when we do:
skb_put(adapter->sleep_cfm, sizeof(struct mwifiex_opt_sleep_confirm));
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Acked-by: Amitkumar Karwar <akarwar@marvell.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
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If a peer or some local agent (rate control, ...) decides to start
an aggregation session but doesn't support HT (which also implies
QoS), reject it.
This is mostly a corner case as such peers normally won't try to
use block-ack sessions and rate control wouldn't start them, but
technically QoS stations could request it according to the spec.
However, since drivers don't really support such non-HT sessions
it's better to reject them.
Also, while at it, move the tracing for TX sessions earlier so it
captures the error cases as well.
Reviewed-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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SDIO reset was not happening properly on mwifiex as cancel_work_sync
in mwifiex_sdio_remove used to kill the calling work function itself.
Due to this, the interface was not getting removed and card was not
getting added again. Reset work function has been made independent
of adapter variable and cancel_work_sync has been moved to cleanup
function.
Signed-off-by: Maithili Hinge <maithili@marvell.com>
Signed-off-by: Amitkumar Karwar <akarwar@marvell.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
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Signed-off-by: Oleksij Rempel <linux@rempel-privat.de>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
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replace REG_WRITE to REG_RMW and place every thing in one
RMW buffer.
Signed-off-by: Oleksij Rempel <linux@rempel-privat.de>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
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it is possible to reduce time needed for this function
by rplacing REG_WRITE with REG_RMW (plus dummy 0) and putt all commands
in same buffer.
Signed-off-by: Oleksij Rempel <linux@rempel-privat.de>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
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it will reduce exution time from 14ms to 2ms on ar9271
Signed-off-by: Oleksij Rempel <linux@rempel-privat.de>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
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use REG_RMW in ath9k_hw_analog_shift_rmw.
It will double execution speed on usb bus.
Signed-off-by: Oleksij Rempel <linux@rempel-privat.de>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
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Signed-off-by: Oleksij Rempel <linux@rempel-privat.de>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
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Signed-off-by: Oleksij Rempel <linux@rempel-privat.de>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
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Signed-off-by: Oleksij Rempel <linux@rempel-privat.de>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
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Signed-off-by: Oleksij Rempel <linux@rempel-privat.de>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
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Signed-off-by: Oleksij Rempel <linux@rempel-privat.de>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
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this will reduce some overhead on usb bus.
Signed-off-by: Oleksij Rempel <linux@rempel-privat.de>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
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insted of reading each register separatly
and waste 4ms on each operation, we can
use one shot read.
Signed-off-by: Oleksij Rempel <linux@rempel-privat.de>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
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REG_READ generate most overhead on usb bus. It send and read micro packages
and reduce usb bandwidth. To reduce this overhead we should read in batches.
Signed-off-by: Oleksij Rempel <linux@rempel-privat.de>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
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Signed-off-by: Oleksij Rempel <linux@rempel-privat.de>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
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Signed-off-by: Oleksij Rempel <linux@rempel-privat.de>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
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Signed-off-by: Oleksij Rempel <linux@rempel-privat.de>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
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This function uses mixed styles for register names/numbers which
is make harder reading and optimisation.
Signed-off-by: Oleksij Rempel <linux@rempel-privat.de>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
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Since usb bus add extra delay on each request, a command
with read + write requests is too expensive. We can dramtically
reduce usb load by moving this command to firmware.
In my tests, this patch will reduce channel scan time
for about 5-10 seconds.
Signed-off-by: Oleksij Rempel <linux@rempel-privat.de>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
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I changed REG_CR+2 and (MSR) to MSR because MSR is defined as (REG_CR + 2).
Signed-off-by: Taehee Yoo <ap420073@gmail.com>
Acked-by: Larry Finger <Larry.Finger@lwfinger.net>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
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Seems H/W report correctly firmware Autorun value only at initialization
stage. When we close interface and open it again, Autorun value is 0 and
we try to load firmware what kills the device. To fix clear
REQUIRE_FIRMWARE firmware flag, to do not load firmware again, once we
discover Autorun mode.
Reported-and-tested-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
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Seems Broadcom TDLS peers (Nexus 5, Xperia Z3) refuse to allow TDLS
connection when channel-switching is supported but the regulatory
classes IE is missing from the setup request.
Add a chandef to reg-class translation function to cfg80211 and use it
to add the required IE during setup. For now add only the current
regulatory class as supported - it is enough to resolve the
compatibility issue.
Signed-off-by: Arik Nemtsov <arikx.nemtsov@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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Just clarify that the delay is only before the first cycle.
Signed-off-by: Luciano Coelho <luciano.coelho@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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Stop scan before authentication or association to make sure
that nothing interferes with connection flow.
Currently mac80211 defers RX auth and assoc packets (among other ones)
until after the scan is complete, so auth during scan is likely to fail
if scan took too much time.
Signed-off-by: David Spinadel <david.spinadel@intel.com>
Reviewed-by: Luciano Coelho <luciano.coelho@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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Pass the initial net-detect delay (NL80211_ATTR_SCHED_SCAN_DELAY)
attribute in the WoWLAN info response.
Additionally, remove a bogus TODO comment.
Signed-off-by: Luciano Coelho <luciano.coelho@intel.com>
Reviewed-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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This can allow the driver to take action based on the reason
of the deauth.
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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This can allow the driver to take action based on the
success / failure of the association.
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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This can allow the driver to take action based on the
success / failure of the authentication.
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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We will be able to add more events, such as MLME events and
others. The low level driver may be interested in knowing
about these events to dump firmware data upon failures, or
to change parameters in case connection attempts fail etc...
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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The rate control locking caused a potential deadlock here due to the
locks being acquired in different orders, so that change cannot yet
be applied. However, there's no fundamental reason for this code to
hold the sta->lock while transmitting frames.
Clearly it's better not to hold the lock for longer periods of time,
which can happen here since we call all the way down to the driver.
Change the code a bit to not hold it while doing that.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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A message sent to a node after a successful name table lookup may still
find that the destination socket has disappeared, because distribution
of name table updates is non-atomic. If so, the message will be rejected
back to the sender with error code TIPC_ERR_NO_PORT. If the source
socket of the message has disappeared in the meantime, the message
should be dropped.
However, in the currrent code, the message will instead be subject to an
unwanted tertiary lookup, because the function tipc_msg_lookup_dest()
doesn't check if there is an error code present in the message before
performing the lookup. In the worst case, the message may now find the
old destination again, and be redirected once more, instead of being
dropped directly as it should be.
A second bug in this function is that the "prev_node" field in the message
is not updated after successful lookup, something that may have
unpredictable consequences.
The problems arising from those bugs occur very infrequently.
The third change in this function; the test on msg_reroute_msg_cnt() is
purely cosmetic, reflecting that the returned value never can be negative.
This commit corrects the two bugs described above.
Signed-off-by: Jon Maloy <jon.maloy@ericsson.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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git://git.kernel.org/pub/scm/linux/kernel/git/jkirsher/next-queue
Jeff Kirsher says:
====================
Intel Wired LAN Driver Updates 2015-03-27
This series contains updates to i40e and i40evf.
Jesse adds new device IDs to handle the new 20G speed for KR2.
Mitch provides a fix for an issue that shows up as a panic or memory
corruption when the device is brought down while under heavy stress.
This is resolved by delaying the releasing of resources until we
receive acknowledgment from the PF driver that the rings have indeed
been stopped. Also adds firmware version information to ethtool
reporting to align with ixgbevf behavior.
Akeem increases the polling loop limiter, sine we found that in
certain circumstances the firmware can take longer to be ready after
a reset.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
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Toshiaki Makita says:
====================
Stacked vlan TSO
On the basis of Netdev 0.1 discussion[1], I made a patch set to enable
TSO for packets with multiple vlans.
Currently, packets with multiple vlans are always segmented by software,
which is caused by that netif_skb_features() drops most feature flags
for multiple tagged packets.
To allow NICs to segment them, we need to get rid of that check from core.
Fortunately, recently introduced ndo_features_check() can be used to
move the check to each driver, and this patch set is based on the idea.
For the initial patch set, I chose 3 drivers, bonding, team, and igb, as
candidates to enable TSO. I tested them and confirmed they works fine
with this change.
Here are samples of performance test results. As I expected, %sys gets
pretty lower than before.
* TEST1: vlan (.1Q) on vlan (.1ad) on igb (I350)
- before
$ netperf -t TCP_STREAM -H 192.168.10.1 -l 60
Recv Send Send
Socket Socket Message Elapsed
Size Size Size Time Throughput
bytes bytes bytes secs. 10^6bits/sec
87380 16384 16384 60.02 933.72
Average: CPU %user %nice %system %iowait %steal %idle
Average: all 0.13 0.00 11.28 0.01 0.00 88.58
- after
$ netperf -t TCP_STREAM -H 192.168.10.1 -l 60
Recv Send Send
Socket Socket Message Elapsed
Size Size Size Time Throughput
bytes bytes bytes secs. 10^6bits/sec
87380 16384 16384 60.01 936.13
Average: CPU %user %nice %system %iowait %steal %idle
Average: all 0.24 0.00 4.17 0.01 0.00 95.58
* TEST2: vlan (.1Q) on bridge (.1ad vlan filtering) on team on igb (I350)
- before
$ netperf -t TCP_STREAM -H 192.168.10.1 -l 60
Recv Send Send
Socket Socket Message Elapsed
Size Size Size Time Throughput
bytes bytes bytes secs. 10^6bits/sec
87380 16384 16384 60.01 936.28
Average: CPU %user %nice %system %iowait %steal %idle
Average: all 0.41 0.00 11.57 0.01 0.00 88.01
- after
$ netperf -t TCP_STREAM -H 192.168.10.1 -l 60
Recv Send Send
Socket Socket Message Elapsed
Size Size Size Time Throughput
bytes bytes bytes secs. 10^6bits/sec
87380 16384 16384 60.02 935.72
Average: CPU %user %nice %system %iowait %steal %idle
Average: all 0.14 0.00 7.66 0.01 0.00 92.19
In addition to above, I tested these configurations:
- vlan (.1Q) on vlan (1.ad) on bonding on igb (I350)
- vlan (.1Q) on vlan (1.Q) on igb (I350)
- vlan (.1Q) on vlan (1.Q) on team on igb (I350)
And didn't find any problem.
[1] https://netdev01.org/sessions/18
https://netdev01.org/docs/netdev01_bof_8021ad_makita_150212.pdf
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
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As datasheets for igb (I210, I350, 82576, etc.) say, maclen can be from
14 to 127, which is enough for reasonable number of vlan tags.
My netperf test showed I350's TSO works pretty fine with multiple vlans.
Signed-off-by: Toshiaki Makita <makita.toshiaki@lab.ntt.co.jp>
Acked-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Team devices don't need to segment multiple tagged packets since their
slaves can segment them.
Signed-off-by: Toshiaki Makita <makita.toshiaki@lab.ntt.co.jp>
Signed-off-by: David S. Miller <davem@davemloft.net>
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