When TLP fails to send new packet because of receive window
limit, it should fall back to retransmit the last packet instead.
Signed-off-by: Yuchung Cheng <ycheng@google.com>
Signed-off-by: Neal Cardwell <ncardwell@google.com>
Signed-off-by: Nandita Dukkipati <nanditad@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
If TLP was unable to send a probe, it extended the RTO to
now + icsk_rto. But extending the RTO makes little sense
if no TLP probe went out. With this commit, instead of
extending the RTO we re-arm it relative to the transmit time
of the write queue head.
Signed-off-by: Yuchung Cheng <ycheng@google.com>
Signed-off-by: Neal Cardwell <ncardwell@google.com>
Signed-off-by: Nandita Dukkipati <nanditad@google.com>
Acked-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Mugunthan V N says:
====================
Add AM335x PG1.0 CPSW errata workaround
With commit 870915feab ("drivers: net: cpsw: remove
disable_irq/enable_irq as irq can be masked from cpsw itself"),
CPSW on AM335x beagle bone white is broken as there is a errata
for AM335x PG1.0. This patch series implements the workaround by
disabling the interrupts from ARM IRQ controller for AM335x SoC
in addition to the masking of interrupts in CPSW.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
CPSW driver has been updated with compatibles for enabling errata
workarounds. So updating cpsw compatibles.
Signed-off-by: Mugunthan V N <mugunthanvnm@ti.com>
Acked-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
CPSW driver has been updated with compatibles for enabling errata
workarounds. So updating cpsw compatibles.
Signed-off-by: Mugunthan V N <mugunthanvnm@ti.com>
Acked-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
As per Am335x Errata [1] Advisory 1.0.9, The CPSW C0_TX_PEND and
C0_RX_PEND interrupt outputs provide a single transmit interrupt
that combines transmit channel interrupts TXPEND[7:0] and a
single receive interrupt that combines receive channel interrupts
RXPEND[7:0]. The TXPEND[0] and RXPEND[0] interrupt outputs are
connected to the ARM Cortex-A8 interrupt controller (INTC) rather
than the C0_TX_PEND and C0_RX_PEND interrupt outputs. So even
though CPSW interrupt is cleared by writing appropriate values to
EOI register the interrupt is not cleared in IRQ controller. So
interrupt is still pending and CPU is struck in ISR, the
workaround is to disable the interrupts in ARM irq controller.
[1] http://www.ti.com/lit/er/sprz360f/sprz360f.pdf
Signed-off-by: Mugunthan V N <mugunthanvnm@ti.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Conflicts:
drivers/net/ethernet/cavium/Kconfig
The cavium conflict was overlapping dependency
changes.
Signed-off-by: David S. Miller <davem@davemloft.net>
metadata snapshots aren't widely used but help provide a consistent
view of the metadata associated with an active thin-pool.
- a dm-cache fix for the 4.2 "default" policy switch from "mq" to "smq"
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Merge tag 'dm-4.2-fixes-5' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm
Pull device mapper fixes from Mike Snitzer:
- two stable fixes for corruption seen in a snapshot of thinp metadata;
metadata snapshots aren't widely used but help provide a consistent
view of the metadata associated with an active thin-pool.
- a dm-cache fix for the 4.2 "default" policy switch from "mq" to "smq"
* tag 'dm-4.2-fixes-5' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm:
dm cache policy smq: move 'dm-cache-default' module alias to SMQ
dm btree: add ref counting ops for the leaves of top level btrees
dm thin metadata: delete btrees when releasing metadata snapshot
Pull xen block driver fixes from Jens Axboe:
"A few small bug fixes for xen-blk{front,back} that have been sitting
over my vacation"
* 'for-linus' of git://git.kernel.dk/linux-block:
xen-blkback: replace work_pending with work_busy in purge_persistent_gnt()
xen-blkfront: don't add indirect pages to list when !feature_persistent
xen-blkfront: introduce blkfront_gather_backend_features()
- Revert a fix from 4.2-rc5 that was causing lots of WARNING spam.
- Fix a memory leak affecting backends in HVM guests.
- Fix PV domU hang with certain configurations.
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Merge tag 'for-linus-4.2-rc6-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip
Pull xen bug fixes from David Vrabel:
- revert a fix from 4.2-rc5 that was causing lots of WARNING spam.
- fix a memory leak affecting backends in HVM guests.
- fix PV domU hang with certain configurations.
* tag 'for-linus-4.2-rc6-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip:
xen/xenbus: Don't leak memory when unmapping the ring on HVM backend
Revert "xen/events/fifo: Handle linked events when closing a port"
x86/xen: build "Xen PV" APIC driver for domU as well
This reverts commits 9a036b93a3 ("x86/signal/64: Remove 'fs' and 'gs'
from sigcontext") and c6f2062935 ("x86/signal/64: Fix SS handling for
signals delivered to 64-bit programs").
They were cleanups, but they break dosemu by changing the signal return
behavior (and removing 'fs' and 'gs' from the sigcontext struct - while
not actually changing any behavior - causes build problems).
Reported-and-tested-by: Stas Sergeev <stsp@list.ru>
Acked-by: Andy Lutomirski <luto@amacapital.net>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: stable@vger.kernel.org
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Pull networking fixes from David Miller:
1) Workaround hw bug when acquiring PCI bos ownership of iwlwifi
devices, from Emmanuel Grumbach.
2) Falling back to vmalloc in conntrack should not emit a warning, from
Pablo Neira Ayuso.
3) Fix NULL deref when rtlwifi driver is used as an AP, from Luis
Felipe Dominguez Vega.
4) Rocker doesn't free netdev on device removal, from Ido Schimmel.
5) UDP multicast early sock demux has route handling races, from Eric
Dumazet.
6) Fix L4 checksum handling in openvswitch, from Glenn Griffin.
7) Fix use-after-free in skb_set_peeked, from Herbert Xu.
8) Don't advertize NETIF_F_FRAGLIST in virtio_net driver, this can lead
to fraglists longer than the driver can support. From Jason Wang.
9) Fix mlx5 on non-4k-pagesize systems, from Carol L Soto.
10) Fix interrupt storm in bna driver, from Ivan Vecera.
11) Don't propagate -EBUSY from netlink_insert(), from Daniel Borkmann.
12) Fix inet request sock leak, from Eric Dumazet.
13) Fix TX interrupt masking and marking in TX descriptors of fs_enet
driver, from LEROY Christophe.
14) Get rid of rule optimizer in gianfar driver, it's buggy and unlikely
to get fixed any time soon. From Jakub Kicinski
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (61 commits)
cosa: missing error code on failure in probe()
gianfar: remove faulty filer optimizer
gianfar: correct list membership accounting
gianfar: correct filer table writing
bonding: Gratuitous ARP gets dropped when first slave added
net: dsa: Do not override PHY interface if already configured
net: fs_enet: mask interrupts for TX partial frames.
net: fs_enet: explicitly remove I flag on TX partial frames
inet: fix possible request socket leak
inet: fix races with reqsk timers
mkiss: Fix error handling in mkiss_open()
bnx2x: Free NVRAM lock at end of each page
bnx2x: Prevent null pointer dereference on SKB release
cxgb4: missing curly braces in t4_setup_debugfs()
net-timestamp: Update skb_complete_tx_timestamp comment
ipv6: don't reject link-local nexthop on other interface
netlink: make sure -EBUSY won't escape from netlink_insert
bna: fix interrupts storm caused by erroneous packets
net: mvpp2: replace TX coalescing interrupts with hrtimer
net: mvpp2: enable proper per-CPU TX buffers unmapping
...
missed during the conversion a couple of years ago.
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Merge tag 'edac_fix_for_4.2' of git://git.kernel.org/pub/scm/linux/kernel/git/bp/bp
Pull EDAC fix from Borislav Petkov:
"A ppc4xx_edac fix for accessing ->csrows properly. This driver was
missed during the conversion a couple of years ago"
* tag 'edac_fix_for_4.2' of git://git.kernel.org/pub/scm/linux/kernel/git/bp/bp:
EDAC, ppc4xx: Access mci->csrows array elements properly
alloc_orinocodev() would allocate the wiphy entry, but it would only get
registered much later in orinoco_init(). If something failed in the init
process inbetween the call to alloc_orinocodev() and the completion
of orinoco_init(), the drivers would end up calling wiphy_unregister()
with a NULL pointer causing beautiful OOPS fireworks.
Explicitly call wiphy_unregister() instead in the right places.
Signed-off-by: Jes Sorensen <Jes.Sorensen@redhat.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Our 8887 A2 chip can have separate firmware images for
bluetooth and WLAN. We observed an issue during parallel
downloading of these images by btmrvl and mwifiex drivers.
This patch claims sdio bus before starting of the firmware
download in mwifiex and releases it after completion to
fix the problem.
Signed-off-by: Aniket Nagarnaik <aniketn@marvell.com>
Signed-off-by: Amitkumar Karwar <akarwar@marvell.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
We will check if any hidden SSID found in passive scan channels
and do specific SSID active scan for those channels.
Signed-off-by: chunfan chen <jeffc@marvell.com>
Signed-off-by: Amitkumar Karwar <akarwar@marvell.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
This patch adds firmware dump feature for SD8997 chipset.
The difference here is only one memory type is needed
to save all firmware information. Device dump information
will be uploaded to usersapace file.
Signed-off-by: Zhaoyang Liu <liuzy@marvell.com>
Signed-off-by: Cathy Luo <cluo@marvell.com>
Signed-off-by: Amitkumar Karwar <akarwar@marvell.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
This patch adds support for 8997 chipset to mwifiex
with SDIO/PCIe/USB interface.
The corresponding firmware image files are located in:
"mrvl/sd8997_uapsta.bin"
"mrvl/pcie8997_uapsta.bin"
"mrvl/usb8997_uapsta.bin"
Signed-off-by: Zhaoyang Liu <liuzy@marvell.com>
Signed-off-by: Cathy Luo <cluo@marvell.com>
Signed-off-by: Amitkumar Karwar <akarwar@marvell.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
The current code returns success if kmalloc fails.
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Acked-by: Amitkumar Karwar <akarwar@marvell.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
In this driver, two variables are masked by one quantity, and then tested
against a second number with more bits that the mask. Accordingly, the
test always fails. To minimize the possibility of such typos, a symbolic
definition of the mask is created and used.
The separate load and mask operations are also combined into a single
statement.
Reported-by: David Binderman <dcb314@hotmail.com>
Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Cc: David Binderman <dcb314@hotmail.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
This driver is converted to use the common firmware header struct.
Because the old header definition failed to indicate that the multi-byte
entries should be little endian, several problems were thus exposed.
These are fixed.
Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
This driver is converted to use the common firmware header struct.
Because the old header definition failed to indicate that the multi-byte
entries should be little endian, several problems were thus exposed.
These are fixed.
Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
This driver is converted to use the common firmware header struct.
Because the old header definition failed to indicate that the multi-byte
entries should be little endian, several problems were thus exposed.
These are fixed.
Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
This driver is converted to use the common firmware header struct.
Because the old header definition failed to indicate that the multi-byte
entries should be little endian, several problems were thus exposed.
These are fixed.
Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
The drivers are converted to use the common firmware header struct.
Because the old header definition failed to indicate that the multi-byte
entries should be little endian, several problems were thus exposed.
These are fixed.
Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Commit e996db6983 (rtlwifi: rtl8192c: Add init codes for "fw_version"
and "fw_subversion") added initialization for fw_version, but failed to
note that the variable in the firmware header is little-endian. The
following Sparse warning results:
CHECK drivers/net/wireless/rtlwifi/rtl8192c/fw_common.c
drivers/net/wireless/rtlwifi/rtl8192c/fw_common.c:242:36: warning: incorrect type in assignment (different base types)
drivers/net/wireless/rtlwifi/rtl8192c/fw_common.c:242:36: expected unsigned short [unsigned] [usertype] fw_version
drivers/net/wireless/rtlwifi/rtl8192c/fw_common.c:242:36: got restricted __le16 [usertype] version
When fixing this problem, I noticed that several of the drivers contain
nearly identical copies of the firmware header struct, and that only the one
used in rtl8192c{e,u} had correct endian notation. The struct has been
moved into a common header, and the other drivers will be fixed in
subsequant patches.
Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Return type of wait_for_completion_timeout is unsigned long not int.
As time_left is exclusively used for wait_for_completion_timeout here its
type is simply changed to unsigned long.
API conformance testing for completions with coccinelle spatches are being
used to locate API usage inconsistencies:
./drivers/net/wireless/ath/ath9k/link.c:197
int return assigned to unsigned long
Patch was compile tested with x86_64_defconfig + CONFIG_ATH_CARDS=m,
Patch is against 4.1-rc3 (localversion-next is -next-20150514)
Signed-off-by: Nicholas Mc Guire <hofrat@osadl.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Return type of wait_for_completion_timeout is unsigned long not int.
As time_left is exclusively used for wait_for_completion_timeout here its
type is simply changed to unsigned long.
API conformance testing for completions with coccinelle spatches are being
used to locate API usage inconsistencies:
./drivers/net/wireless/ath/ath9k/wmi.c:331
int return assigned to unsigned long
Patch was compile tested with x86_64_defconfig + CONFIG_ATH_CARDS=m,
CONFIG_ATH9K_HTC=m
Patch is against 4.1-rc3 (localversion-next is -next-20150514)
Signed-off-by: Nicholas Mc Guire <hofrat@osadl.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Return type of wait_for_completion_timeout is unsigned long not int.
As time_left is exclusively used for wait_for_completion_timeout here its
type is simply changed to unsigned long.
API conformance testing for completions with coccinelle spatches are being
used to locate API usage inconsistencies:
./drivers/net/wireless/ath/ath9k/htc_drv_init.c:81
int return assigned to unsigned long
Patch was compile tested with x86_64_defconfig + CONFIG_ATH_CARDS=m,
CONFIG_ATH9K_HTC=m
Patch is against 4.1-rc3 (localversion-next is -next-20150514)
Signed-off-by: Nicholas Mc Guire <hofrat@osadl.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Return type of wait_for_completion_timeout is unsigned long not int.
As time_left is exclusively used for wait_for_completion_timeout here its
type is simply changed to unsigned long.
API conformance testing for completions with coccinelle spatches are being
used to locate API usage inconsistencies:
./drivers/net/wireless/ath/ath9k/htc_hst.c:171
int return assigned to unsigned long
./drivers/net/wireless/ath/ath9k/htc_hst.c:277
int return assigned to unsigned long
./drivers/net/wireless/ath/ath9k/htc_hst.c:206
int return assigned to unsigned long
Patch was compile tested with x86_64_defconfig + CONFIG_ATH_CARDS=m,
CONFIG_ATH9K_HTC=m
Patch is against 4.1-rc3 (localversion-next is -next-20150514)
Signed-off-by: Nicholas Mc Guire <hofrat@osadl.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Firmware peer entries are involved in internal
firmware vdev structures. This was not accounted
for and could lead firmware to crash due to asking
it to do more than it could.
Fixes: 039a0051ec ("ath10k: allocate fw resources for iface combinations")
Signed-off-by: Michal Kazior <michal.kazior@tieto.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
If peer creation failed during offchannel Tx the
driver attempted to delete the peer nonetheless.
This caused the ar->num_peers counter to be
incorrectly decremented. This subsequently could
cause the counter to drop below 0 and also
eventually lead to firmware crash because host
would think there are less peer entries created in
firmware then there really were.
Signed-off-by: Michal Kazior <michal.kazior@tieto.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
When WoWLAN resume fails with retval 1 mac80211
will attempt to reconfig the device in a similar
manner when hw restart is requested. This wasn't
handled properly and yielded call trace warnings
and the device ended up not working.
Signed-off-by: Michal Kazior <michal.kazior@tieto.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
If firmware did not have any feature flags set the
var would be left with values found on the stack
(i.e. garbage) yielding print string like this:
(...) features \xffffffa6m:^R\xfffffffbԂ\xffffffc4^E
Fixes: b27bc5a40f ("ath10k: dump fw features during probing")
Signed-off-by: Michal Kazior <michal.kazior@tieto.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
This patch enables MU-MIMO transmit beamforming support
for QCA99X0 chipsets.
Signed-off-by: Vivek Natarajan <nataraja@qti.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
qca61x4 uses the vdev param as a sole sufficient configuration
for txbf while qca99x0 enables txbf during peer assoc by
combining the vdev param value with peer assoc's vht capabilities
This patch gets the appropriate txbf configuration scheme
before passing the wmi command to enable the same in the firmware.
Signed-off-by: Vivek Natarajan <nataraja@qti.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
Even though there's a WMI enum for fragmentation
threshold no known firmware actually implements
it. Moreover it is not possible to rely frame
fragmentation to mac80211 because firmware clears
the "more fragments" bit in frame control making
it impossible for remote devices to reassemble
frames.
Hence implement a dummy callback just to say
fragmentation isn't supported. This effectively
prevents mac80211 from doing frame fragmentation
in software.
This fixes Tx becoming broken after setting
fragmentation threshold.
Fixes: 1010ba4c5d ("ath10k: unregister and remove frag_threshold callback")
Signed-off-by: Michal Kazior <michal.kazior@tieto.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
Commit 1010ba4c5d ("ath10k: unregister and
remove frag_threshold callback") didn't remove all
instances of (futile) fragmentation threshold
configuration. No known firmware supports the
parameter so don't even bother setting it.
Signed-off-by: Michal Kazior <michal.kazior@tieto.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
The outside if statement checks that IEEE80211_TX_INTFL_MLME_CONN_TX is
set so this condition is always true. Checking twice upsets the static
checkers.
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
The iwlwifi driver was the only driver that used this, but as
it turns out it never needed it, so we can remove it.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
According to firmware engineers, the firmware has never required
these fields and the values have always been calculated, they were
just leftovers from a previous implementation.
Therefore remove the unnecessary calculation.
Reviewed-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
The GPIO subsystem provides dummy GPIO consumer functions if GPIOLIB is
not enabled. Hence drivers that depend on GPIOLIB, but use GPIO consumer
functionality only, can still be compiled if GPIOLIB is not enabled.
Relax the dependency on GPIOLIB if COMPILE_TEST is enabled, where
appropriate.
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
The commit
de3910eb79 ("edac: change the mem allocation scheme to
make Documentation/kobject.txt happy")
changed the memory allocation for the csrows member. But ppc4xx_edac was
forgotten in the patch. Fix it.
Signed-off-by: Michael Walle <michael@walle.cc>
Cc: <stable@vger.kernel.org>
Cc: linux-edac <linux-edac@vger.kernel.org>
Cc: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
Link: http://lkml.kernel.org/r/1437469253-8611-1-git-send-email-michael@walle.cc
Signed-off-by: Borislav Petkov <bp@suse.de>
If register_hdlc_device() fails, the current code returns 0 but we
should return an error code instead.
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
A few things have changed since the previous version of the vxlan
documentation was written, so update it and correct some grammar and
such while we are at it.
Signed-off-by: Rick Jones <rick.jones2@hp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
There is no need to use the IS_ERR_VALUE() macro for checking
the return value from pm_runtime_* functions.
Just do a simple negative test instead.
The semantic patch that makes this change is available
in scripts/coccinelle/api/pm_runtime.cocci.
Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Hariprasad Shenai says:
====================
Add some more debug info
This patch series adds the following.
Add more info for sge_qinfo dump
Differentiate tid and stids between different regions, and add a debugfs
entry to dump all the tid info
This patch series has been created against net-next tree and includes
patches on cxgb4 driver.
We have included all the maintainers of respective drivers. Kindly review
the change and let us know in case of any review comments.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
