| Commit message (Collapse) | Author | Age |
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On tx channel abort a cppi interrupt is generated for a short time by
setting the lowest bit of the TCPPICOMPPTR register. It is then reset
immediately by clearing the bit. When the interrupt handler is run,
it does not detect an interrupt in the TCPPIMSKSR or RCPPIMSKSR
registers and thus exits early without writing the TCPPIEOIR register.
It appears that this inhibits further cppi interrupts until the handler
is called by chance, f.ex. from davinci_interrupt().
By moving the unmasking of the interrupt below the writes to
TCPPICOMPPTR, no interrupt is generated and no write to TCPPIEOIR is
necessary.
Signed-off-by: Daniel Glöckner <dg@emlix.com>
Signed-off-by: Ajay Kumar Gupta <ajay.gupta@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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In gadget mode the answer to a control request should be followed by
a zero-length packet if the amount transferred is an exact multiple of
the endpoint's packet size and the requests has its "zero" flag set.
This patch prevents the request from being immediately removed from the
queue when a control IN transfer ends on a full packet and "zero" is set.
The next time ep0_txstate is entered, a zero-length packet is queued and
the request is removed as fifo_count is 0.
Signed-off-by: Daniel Glöckner <dg@emlix.com>
Signed-off-by: Ajay Kumar Gupta <ajay.gupta@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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Isochronous Tx DMA is getting programmed but never getting started
for CPPI and TUSB DMAs and thus Isochronous Tx doesn't work.
Fixing it by starting DMAs using musb_h_tx_dma_start().
Signed-off-by: Swaminathan S <swami.iyer@ti.com>
Signed-off-by: Babu Ravi <ravibabu@ti.com>
Signed-off-by: Ajay Kumar Gupta <ajay.gupta@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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Removes below unnecessary log of almost 28 lines during boot.
musb_hdrc: hw_ep 0shared, max 64
musb_hdrc: hw_ep 1tx, max 512
musb_hdrc: hw_ep 1rx, max 512
...
...
musb_hdrc: hw_ep 13shared, max 4096
musb_hdrc: hw_ep 14shared, max 1024
musb_hdrc: hw_ep 15shared, max 1024
Signed-off-by: Ajay Kumar Gupta <ajay.gupta@ti.com>
Acked-by: Felipe Balbi <felipe.balbi@nokia.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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- fixed shared interrupt bug reported by Vadim Lobanov
- fixed possible warning oops on driver unload when connected
- prevent interrupt flood in PIO mode ("modprobe amd5536udc use_dma=0")
when using gadget ether
Signed-off-by: Thomas Dahlmann <dahlmann.thomas@arcor.de>
Cc: Robert Richter <robert.richter@amd.com>
Cc: David Brownell <david-b@pacbell.net>
Cc: stable <stable@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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The use of urb->actual_length to update tx_outstanding_bytes
implicitly assumes that the number of bytes actually written is the
same as the number of bytes we tried to write. On error that
assumption is violated so just use transfer_buffer_length the number
of bytes we intended to write to the device.
If an error occurs we need to fall through and call
usb_serial_port_softint to wake up processes waiting in
tty_wait_until_sent.
Signed-off-by: Eric W. Biederman <ebiederm@aristanetworks.com>
Cc: stable <stable@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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The driver incorrectly cancels the mass-storage device CSW request
(which leads to device reset) due to giving back URB at the head of
endpoint's queue after sending each STALL handshake; stop doing that
and start checking for the queue being non-empty before stalling an
endpoint and disallowing stall in such case in musb_gadget_set_halt()
like the other gadget drivers do.
Moreover, the driver starts Rx request despite of the endpoint being
halted -- fix this by moving the SendStall bit check from musb_g_rx()
to rxstate(). And we also sometimes get into rxstate() with DMA still
active after clearing an endpoint's halt (not clear why), so bail out
in this case, similarly to what txstate() does...
While at it, also do the following changes :
- in musb_gadget_set_halt(), remove pointless Tx FIFO flushing (the
driver does not allow stalling with non-empty Tx FIFO anyway);
- in rxstate(), stop pointlessly zeroing the 'csr' variable;
- in musb_gadget_set_halt(), move the 'done' label to a more proper
place;
- in musb_g_rx(), eliminate the 'done' label completely...
Signed-off-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Cc: <stable@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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This patch (as1304) fixes a regression in ehci-hcd. Evidently some
hubs don't handle Clear-TT-Buffer requests correctly, so we should
avoid sending them when they don't appear to be absolutely necessary.
The reported symptom is that output on a downstream audio device cuts
out because the hub stops relaying isochronous packets.
The patch prevents Clear-TT-Buffer requests from being sent following
a STALL handshake. In theory a STALL indicates either that the
downstream device sent a STALL or that no matching TT buffer could be
found. In either case, the transfer is completed and the TT buffer
does not remain busy, so it doesn't need to be cleared.
Also, the patch fixes a minor flaw in the code that actually sends the
Clear-TT-Buffer requests. Although the pipe direction isn't really
used for control transfers, it should be a Send rather than a Receive.
Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Reported-by: Javier Kohen <jkohen@users.sourceforge.net>
CC: David Brownell <david-b@pacbell.net>
Cc: stable <stable@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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* git://git.kernel.org/pub/scm/linux/kernel/git/davem/ide-2.6:
ide: fix ioctl to pass requested transfer mode to ide_find_dma_mode instead of UDMA6
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of UDMA6
Currently, ide_cmd_ioctl when invoked for setting DMA transfer mode calls
ide_find_dma_mode with requested mode as XFER_UDMA_6. This prevents setting DMA
mode to any other value than the default (maximum) supported by the device (or
UDMA6, if supported) irrespective of the actual requested transfer mode and
returns error.
For example, setting mode to UDMA2 using hdparm, where UDMA4 is the default
transfer mode gives following error:
# ./hdparm -d1 -Xudma2 /dev/hda
/dev/hda:hda: UDMA/66 mode selected
setting using_dma to 1 (on)
hda: UDMA/66 mode selected
setting xfermode to 66 (UltraDMA mode2)
HDIO_DRIVE_CMD(setxfermode) failed: Invalid argument
using_dma = 1 (on)
This patch fixes the issue.
Signed-off-by: Hemant Pedanekar <hemantp@ti.com>
Acked-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Acked-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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* git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-2.6:
sunsu: Use sunserial_console_termios() in sunsu_console_setup().
sunsu: Pass true 'ignore_line' to console match when RSC or LOM console.
serial: suncore: Fix RSC/LOM handling in sunserial_console_termios().
serial: suncore: Add 'ignore_line' argument to sunserial_console_match().
sunsu: Fix detection of SU ports which are RSC console or control.
sunsab: Do not set sunsab_reg.cons right before registering minors.
sparc64: Fix definition of VMEMMAP_SIZE.
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Be like the other Sun serial drivers otherwise the special handling of
OpenFirmware options and hard-coded overrides for LOM/RSC consoles
will not be handled.
Signed-off-by: David S. Miller <davem@davemloft.net>
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Signed-off-by: David S. Miller <davem@davemloft.net>
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RSC and LOM devices have fixed speed settings.
We already had some code to match and handle "rsc" named devices on
E250 systems, but we also have to handle 'rsc-console', 'rsc-control',
and 'lom-console'.
Also, in order to get this right regardless of what 'output-device'
happens to be, explicitly pass the UART device node pointer to this
routine.
Signed-off-by: David S. Miller <davem@davemloft.net>
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This tells the logic to ignore the line match when deciding whether the
device is the OpenFirmware specified console device or not.
This is going to be used in the SU driver for rsc-console detection.
There is probably a better way to handle this, but this is the least
intrusive solution for now which we can validate won't break any other
cases.
Signed-off-by: David S. Miller <davem@davemloft.net>
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These device nodes are named "rsc-console" and "rsc-control" rather
than 'serial', but the device_type property is 'serial' so we'll
tip off of that for detection.
Signed-off-by: David S. Miller <davem@davemloft.net>
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Other Sun serial drivers do not do this, and if we keep it this way
it ends up registering all serial devices as consoles rather than
just the one which we explicitly register via sunserial_console_match()
which uses add_preferred_console().
Signed-off-by: David S. Miller <davem@davemloft.net>
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* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6: (42 commits)
b44: Fix wedge when using netconsole.
wan: cosa: drop chan->wsem on error path
ep93xx-eth: check for zero MAC address on probe, not on device open
NET: smc91x: Fix irq flags
smsc9420: prevent BUG() if ethtool is called with interface down
r8169: restore mac addr in rtl8169_remove_one and rtl_shutdown
ipv4: additional update of dev_net(dev) to struct *net in ip_fragment.c, NULL ptr OOPS
e100: Use pci pool to work around GFP_ATOMIC order 5 memory allocation failure
sctp: on T3_RTX retransmit all the in-flight chunks
pktgen: Fix netdevice unregister
macvlan: fix gso_max_size setting
rfkill: fix miscdev ops
ath9k: set ps_default as false
hso: fix soft-lockup
hso: fix debug routines
pktgen: Fix device name compares
stmmac: do not fail when the timer cannot be used.
stmmac: fixed a compilation error when use the external timer
netfilter: xt_limit: fix invalid return code in limit_mt_check()
Au1x00: fix crash when trying register_netdev()
...
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Fixes kernel bugzilla #14691
Due to the way netpoll works, it is perfectly legal to see
NAPI already scheduled when new device events are pending
in b44_interrupt().
So logging a message about it is wrong and in fact harmful.
Based upon a patch by Andreas Mohr.
Signed-off-by: David S. Miller <davem@davemloft.net>
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The other paths all drop chan->wsem. This was found by a static
checker (smatch).
Signed-off-by: Dan Carpenter <error27@gmail.com>
Acked-by: Jan "Yenya" Kasprzak <kas@fi.muni.cz>
Signed-off-by: David S. Miller <davem@davemloft.net>
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If we happen to have registered the driver without passing
a MAC address, we will print a zero MAC address and register
the interface with this invalid address, this is confusin. This
patch moves the checking of a valid ethernet address and the
generation of a random one down from the open function to
the probe function.
Signed-off-by: Florian Fainelli <florian@openwrt.org>
Acked-by: Lennert Buytenhek <buytenh@wantstofly.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
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smc91x.h defines SMC_IRQ_FLAGS to be -1 when it wants the interrupt
flags to be taken from the resource structure. However, d280ead
changed this to checking for non-zero resource flags.
Unfortunately, this means that on some platforms, we end up passing
'-1' to request_irq rather than the desired result. Combine the two
conditions into one so that the IRQ flags are taken from the resource
if either SMC_IRQ_FLAGS is -1 or the resource flags specify an
interrupt trigger.
This restores network on at least the Versatile platform.
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Acked-by: Eric Miao <eric.y.miao@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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This patch fixes a null pointer dereference BUG() if ethtool is used on
an smsc9420 interface while it is down, because the phy_dev is only
allocated while the interface is up.
Signed-off-by: Steve Glendinning <steve.glendinning@smsc.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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The newer chipsets (all PCI-E) are known that they need full power cycle
(AC or battery removal) to reset MAC address to a hardwired one. Previous
patch to address this problem loads the original MAC address from EEPROM.
But it brought other problem for which it is necessary to introduce a new
module parameter.
However, it might suffice to restore the initial MAC address before
shutdown/reboot/kexec and when removing the module.
Signed-off-by: Ivan Vecera <ivecera@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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pci_alloc_consistent uses GFP_ATOMIC allocation that may fail on some systems
with limited memory (Bug #14265). pci_pool_alloc allows waiting with
GFP_KERNEL.
Tested-by: Karol Lewandowski <karol.k.lewandowski@gmail.com>
Signed-off-by: Roger Oksanen <roger.oksanen@cs.helsinki.fi>
Signed-off-by: David S. Miller <davem@davemloft.net>
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gso_max_size must be set based on the value of the underlying device to
support devices not using the full 64k.
Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
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git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-2.6
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Copied from original one-line patch here:
http://bugzilla.kernel.org/show_bug.cgi?id=14267#c26
Signed-off-by: John W. Linville <linville@tuxdriver.com>
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Fix soft-lockup in hso.c which is triggered on SMP machine when
modem is removed while file descriptor(s) under /dev are still open:
old version called kref_put() too early which resulted in destroying
hso_serial and hso_device objects which were still used later on.
Signed-off-by: Antti Kaijanmäki <antti.kaijanmaki@nomovok.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Signed-off-by: Antti Kaijanmäki <antti.kaijanmaki@nomovok.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
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If the external timer cannot be used the driver
will continue to work without mitigation.
Signed-off-by: Giuseppe Cavallaro <peppe.cavallaro@st.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Signed-off-by: Giuseppe Cavallaro <peppe.cavallaro@st.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Andreas Lohre reported that the driver crashes when trying
to register_netdev(), he sugessted to move dev->netdev_ops initialization
before calling register_netdev(), it worked for him.
Reported-by: Andreas Lohre <alohre@gmail.com>
Signed-off-by: Alexander Beregalov <a.beregalov@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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o Along with netdev->perm_addr, mac address will be
maintained in device private structure.
o Device limitation: We need to set mac address when ever
interface comes up.
In ALB/TAL mode, bonding driver calls set_mac for all slave with bond mac address.
But bonding driver set netdev->dev_addr field to its original value,
after enslaving interfaces.
When ever active slave changes, it swap dev_addr of inactive slave with active.
Yet it doesn't notify driver about change in netdev->dev_addr.
As netxen driver need to set mac addr when ever interface comes up,
it can't rely on netdev->dev_addr field. Specially in case of bonding mode ALB/TLB.
Signed-off-by: Narender Kumar <narender.kumar@qlogic.com>
Signed-off-by: Amit Kumar Salecha <amit.salecha@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Kernel crashes, if promisc mode set without disabling rx queue.
Before changing mode in NX2031 chip, wait till rx queue drains.
Signed-off-by: Narender Kumar <narender.kumar@qlogic.com>
Signed-off-by: Amit Kumar Salecha <amit.salecha@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Avoid resetting memory during initialization, skip this memory
block during driver probe.
Signed-off-by: Amit Kumar Salecha <amit@netxen.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Use BIT for macro definitions wherever possible, remove
unused and redundant macros.
Signed-off-by: Chaithrika U S <chaithrika@ti.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Summary of Changes:
-Fix to receive multicast packets by setting the corresponding hardware
bit during initialization.
-Fix to re-enable the interface [by interface up command(ifup)] while the
interface is down.
-Fix to be able to down the interface by passing the last parameter
correctly to request_irq().
-Remove to read 4 extra bytes from the receiving queue after reading a
packet, even though it does not cause a predictable issue now.
-Remove occurrences of transmission done interrupt in order to tx
throughput enhancement.
-Enable IP checksum for packet receiving by setting the corresponding
hardware bit during initialization.
-Relocate ks_enable_int()/ks_disable_int() in order not to declare those
functions at the beginning of the file.
-Rename ks_enable()/_disable() to ks_enable_qmu()/ks_disable_qmu() in
order to give more meaningful names and relocate them not declaire
those functions at the beginning of the file.
Signed-off-by: David J. Choi <david.choi@micrel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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When building for Sun 3:
drivers/net/ethoc.c:1091: undefined reference to `dma_free_coherent'
drivers/built-in.o: In function `ethoc_probe':
drivers/net/ethoc.c:965: undefined reference to `dma_alloc_coherent'
drivers/net/ethoc.c:1063: undefined reference to `dma_free_coherent'
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
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When configuring the OEM bits in the PHY on 82577/82578, do not restart
autonegotiation if the firmware is blocking it (e.g. when an IDE-R session
is active) because the link must not go down.
Signed-off-by: Bruce Allan <bruce.w.allan@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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A workaround for pre-release versions of 82577 is causing link issues on
some switches. The workaround is no longer needed on production parts so
remove it.
Signed-off-by: Bruce Allan <bruce.w.allan@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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When changing MTU, save it off prior to resetting otherwise the flow control
thresholds may be miscalculated.
Signed-off-by: Bruce Allan <bruce.w.allan@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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On some devices (e.g. 82578) not having a Tx timeout factor when linked at
100Mbps can cause false reports of hardware hangs on busy hubs.
Signed-off-by: Bruce Allan <bruce.w.allan@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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When flow control (pause) parameters were changed via ethtool (i.e. enabled
or disabled), the newly calculated thresholds were not being written to the
device for non-fiber media.
Signed-off-by: Bruce Allan <bruce.w.allan@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Remove unnecessary workaround that mistakenly does not perform a page
select operation for PHY registers 29 and 30 (assuming these are the PHY
debug port address and data registers) on 82578 which can cause reads
of the Transmit with No Carrier Sense statistics register on page 778 to be
read from an incorrect page. Also error out if the page select operation
fails.
Signed-off-by: Bruce Allan <bruce.w.allan@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Commit 3ec2a2b80f3eb53851fe4cef9e65b5d33376ef89 broke Tx/Rx when using
jumbo frames on certain parts (i.e. only PAUSE frames could be exchanged
once the high water mark was reached preventing normal packet traffic).
This patch reverts the breakage and sets appropriate high and low water
marks of the Rx FIFO for 82577/82578 which require a workaround due to a
flow control issue in hardware.
Signed-off-by: Bruce Allan <bruce.w.allan@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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tc is required by CONFIG_IXGBE_DCB.
This also fixes compilation warning:
drivers/net/ixgbe/ixgbe_main.c: In function ‘ixgbe_tx_is_paused’:
drivers/net/ixgbe/ixgbe_main.c:245: warning: unused variable ‘tc’
Signed-off-by: Jaswinder Singh Rajput <jaswinderrajput@gmail.com>
Acked-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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veth_get_stats() can be called in parallel on several cpus.
It's better to not reset dev->stats as it could give wrong result on
one cpu. Use temporary variables, then store the final results.
Also, we should loop on every possible cpus, not only online cpus,
or cpu hotplug can suddenly give wrong veth stats.
Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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ieee802154_fake_xmit() should free skbs since it returns NETDEV_TX_OK
Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Acked-by: Dmitry Eremin-Solenikov <dbaryshkov@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input:
Input: keyboard - fix braille keyboard keysym generation
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