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2014-07-11be2net: set EQ DB clear-intr bit in be_open()Suresh Reddy1-1/+1
On BE3, if the clear-interrupt bit of the EQ doorbell is not set the first time it is armed, ocassionally we have observed that the EQ doesn't raise anymore interrupts even if it is in armed state. This patch fixes this by setting the clear-interrupt bit when EQs are armed for the first time in be_open(). Signed-off-by: Suresh Reddy <[email protected]> Signed-off-by: Sathya Perla <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2014-07-11r8169: support IPv6hayeswang1-12/+145
Support the IPv6 hw checksum for RTL8111C and later chips. Note that the hw has the limitation for the transport offset. The checksum must be calculated by sw, when the transport offset is out of the range which the hw accepts. Signed-off-by: Hayes Wang <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2014-07-11r8169: use Giant Sendhayeswang1-1/+7
Replace large send with giant send for TSO for RTL8111C and later ICs. The large send setting of the RTL8111DP is different from the other chips. However, the giant send setting is the same for all the chips which support it. Use the giant send to synchronize the settings. Signed-off-by: Hayes Wang <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2014-07-11r8169: split rtl8169_tso_csumhayeswang1-34/+37
According to the txd_version, split rtl8169_tso_csum() into rtl8169_tso_csum_v1() and rtl8169_tso_csum_v2(). Signed-off-by: Hayes Wang <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2014-07-11dp83640: Adjust ptp event timestampsStefan Sørensen1-0/+3
Event timestamp values should be adjusted by 3*reference clock period + 11 ns = 35 ns to compensate for input path and synchronization delays. So subtract 35ns from event timestamps. Signed-off-by: Stefan Sørensen <[email protected]> Acked-by: Richard Cochran <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2014-07-11farsync: fix invalid memory accesses in fst_add_one() and fst_init_card()Alexey Khoroshilov1-54/+58
There are several issues in fst_add_one() and fst_init_card(): - invalid pointer dereference at card->ports[card->nports - 1] if register_hdlc_device() fails for the first port in fst_init_card(); - fst_card_array overflow at fst_card_array[no_of_cards_added] because there is no checks for array overflow; - use after free because pointer to deallocated card is left in fst_card_array if something fails after fst_card_array[no_of_cards_added] = card; - several leaks on failure paths in fst_add_one(). The patch fixes all the issues and makes code more readable. Found by Linux Driver Verification project (linuxtesting.org). Signed-off-by: Alexey Khoroshilov <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2014-07-11Merge branch 'master' of ↵John W. Linville12-27/+39
git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-next into for-davem
2014-07-10ethernet: Add new driver for Marvell Armada 375 network unitMarcin Wojtas3-0/+6402
This commit adds a new network driver for the network controller in Marvell Armada 375 SoC. Given the controller is very different from the ones in the other Marvell SoCs that use the mv643xx_eth (Kirkwood, Orion, Discovery) and mvneta (Armada 370/38x/XP) drivers, a new driver is needed. Signed-off-by: Marcin Wojtas <[email protected]> [Ezequiel: coding style cleanup] Signed-off-by: Ezequiel Garcia <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2014-07-10net: cpmac: fix in debug messagesVarka Bhadram1-12/+12
This patch fix the debug message format. This patch changes to the commit f160a2d0b524eeebd97a68e2fbb59fad4cdd3fee: net: cpmac: dynamic debug fixes When we use pr_debug()/netdev_dbg() new lines are inserting in b/w the values. The format when i use the printk() These formats used in skb dump and reg dump. This functions called from the entire code. So this will be enabled all the lines. Signed-off-by: Varka Bhadram <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2014-07-10Merge branch 'master' of ↵John W. Linville11-27/+38
git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless into for-davem
2014-07-10Merge branch 'master' of ↵John W. Linville22-44/+144
git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless
2014-07-10igb: do a reset on SR-IOV re-init if device is downStefan Assmann1-0/+2
To properly re-initialize SR-IOV it is necessary to reset the device even if it is already down. Not doing this may result in Tx unit hangs. Cc: stable <[email protected]> Signed-off-by: Stefan Assmann <[email protected]> Tested-by: Aaron Brown <[email protected]> Signed-off-by: Jeff Kirsher <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2014-07-10bridge: fdb dumping takes a filter deviceJamal Hadi Salim3-5/+8
Dumping a bridge fdb dumps every fdb entry held. With this change we are going to filter on selected bridge port. Signed-off-by: Jamal Hadi Salim <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2014-07-10igb: Workaround for i210 Errata 25: Slow System ClockTodd Fujinaka7-8/+113
On some devices, the internal PLL circuit occasionally provides the wrong clock frequency after power up. The probability of failure is less than one failure per 1000 power cycles. When the failure occurs, the internal clock frequency is around 1/20 of the correct frequency. Cc: stable <[email protected]> Signed-off-by: Todd Fujinaka <[email protected]> Tested-by: Aaron Brown <[email protected]> Signed-off-by: Jeff Kirsher <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2014-07-10usbnet: smsc95xx: add reset_resume function with reset operationJoonyoung Shim1-1/+13
The smsc95xx needs to resume with reset operation. Otherwise it causes system hang by network error like below after resume. This case appears on odroid u3 board. [ 9.727600] smsc95xx 1-2:1.0 eth0: kevent 2 may have been dropped [ 9.727648] smsc95xx 1-2:1.0 eth0: kevent 2 may have been dropped [ 9.727689] smsc95xx 1-2:1.0 eth0: kevent 2 may have been dropped [ 9.727728] smsc95xx 1-2:1.0 eth0: kevent 2 may have been dropped [ 9.729486] PM: resume of devices complete after 2011.219 msecs [ 10.117609] Restarting tasks ... done. [ 11.725099] smsc95xx 1-2:1.0 eth0: kevent 2 may have been dropped [ 13.480846] smsc95xx 1-2:1.0 eth0: kevent 2 may have been dropped [ 13.481361] smsc95xx 1-2:1.0 eth0: kevent 2 may have been dropped ... Signed-off-by: Joonyoung Shim <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2014-07-10r8152: support jumbo frame for RTL8153hayeswang1-4/+32
The maximum jumbo frame size for RTL8153 is 9K bytes. Change the max rx packet size to 9K. Change the use of the shared fifo from 6K (default) to 12K for tx. Signed-off-by: Hayes Wang <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2014-07-10net: cpmac: fix in releasing resourcesVarka Bhadram1-2/+3
before registering the the net device this code freeing net device by using the label 'fail' fixed by introducing an another label 'out' Signed-off-by: Varka Bhadram <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2014-07-10net: cpmac: fix proper spacing before return statementVarka Bhadram1-0/+8
This patch insert proper spaces before return statement. Signed-off-by: Varka Bhadram <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2014-07-10net: cpmac: fix missing a blank line after declarationsVarka Bhadram1-0/+8
This patch insert a blank line after declaration Signed-off-by: Varka Bhadram <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2014-07-10net: cpmac: fix cpmac driver structureVarka Bhadram1-3/+5
This patch changes to style of declarattion which follows every driver Signed-off-by: Varka Bhadram <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2014-07-10net: cpmac: dynamic debug fixesVarka Bhadram1-74/+62
This patch does the following changes 1. convert printk(KERN_DEBUG.. to netdev_dbg() if we have net_device object or convert to dev_dbg() if we have device object. 2. convert printk(KERN_WARNING.. to netdev_warn() if we have net_device object or convert to dev_warn() if we have device object 3. convert printk() to pr_* Signed-off-by: Varka Bhadram <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2014-07-10net: cpmac: fix commentsVarka Bhadram1-19/+21
This patch convert the normal comments to networking subsystem style comments. Signed-off-by: Varka Bhadram <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2014-07-10net: cpmac: remove space in macro definationVarka Bhadram1-41/+41
This patch fix the space after '#' in macro defination Signed-off-by: Varka Bhadram <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2014-07-09net: systemport: use kcalloc instead of kzallocFlorian Fainelli1-3/+3
checkpatch.pl flagged two uses of kzalloc() for allocating and zeroing arrays, use kcalloc() instead as recommended. Signed-off-by: Florian Fainelli <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2014-07-09net: systemport: align multiple lines correctlyFlorian Fainelli1-59/+58
checkpatch.pl flagged a bunch of: "CHECK: Alignment should match open parenthesis" problems, fix all of them. Signed-off-by: Florian Fainelli <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2014-07-09dp83640: Always decode received status framesStefan Sørensen1-3/+3
Currently status frames are only handled when packet timestamping is enabled, but status frames are also needed for pin event timestamping. Fix by moving packet timestamping check to after status frame decode. Signed-off-by: Stefan Sørensen <[email protected]> Acked-by: Richard Cochran <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2014-07-09mlx5_core: Fix possible race between mr tree insert/deleteSagi Grimberg1-4/+15
In mlx5_core_destroy_mkey(), we must first remove the mr from the radix tree and then destroy it. Otherwise we might hit a race if the key was reallocated and we attempted to insert it to the radix tree. Also handle radix tree insert/delete failures. Signed-off-by: Sagi Grimberg <[email protected]> Reviewed-by: Eli Cohen <[email protected]> Signed-off-by: Roland Dreier <[email protected]>
2014-07-09hyperv: Add netpoll supportRichard Weinberger1-0/+11
In order to have at least a netconsole to debug kernel issues on Windows Azure this patch implements netpoll support. Sending packets is easy, netvsc_start_xmit() does already everything needed. Signed-off-by: Richard Weinberger <[email protected]> Acked-by: Haiyang Zhang <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2014-07-09arc_emac: Remove unused pointer to net_device from arc_emac_privTobias Klauser2-3/+0
The pointer to the struct net_device in the private data is only assigned but never used, so delete it. Signed-off-by: Tobias Klauser <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2014-07-09arc_emac: Use net_device_stats from struct net_deviceTobias Klauser2-7/+5
Instead of using a private copy of struct net_device_stats in struct arc_emac_priv, use stats from struct net_device. Signed-off-by: Tobias Klauser <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2014-07-09r8169: disable L23hayeswang1-0/+25
For RTL8411, RTL8111G, RTL8402, RTL8105, and RTL8106, disable the feature of entering the L2/L3 link state of the PCIe. When the nic starts the process of entering the L2/L3 link state and the PCI reset occurs before the work is finished, the work would be queued and continue after the next the PCI reset occurs. This causes the device stays in L2/L3 link state, and the system couldn't find the device. Signed-off-by: Hayes Wang <[email protected]> Acked-by: Francois Romieu <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2014-07-08net: phy: export phy_suspend and phy_resumeFlorian Fainelli1-0/+2
phy_suspend and phy_resume are two commonly used helper functions that need to be exported for Ethernet drivers to be built as modules Fixes: 40755a0fce17 ("net: systemport: add suspend and resume support") Signed-off-by: Florian Fainelli <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2014-07-08net: fec: consolidate hwtstamp implementationRussell King1-18/+19
Both transmit and receive use the same infrastructure for calculating the packet timestamp. Rather than duplicating the code, provide a function to do this common work. Model this function in the Intel e1000e version which avoids calling ns_to_ktime() within the spinlock; the spinlock is critical for timecounter_cyc2time() but not ns_to_ktime(). Acked-by: Richard Cochran <[email protected]> Acked-by: Fugang Duan <[email protected]> Signed-off-by: Russell King <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2014-07-08net: fec: remove useless status check in tx reap pathRussell King1-3/+0
Remove a useless status check in the transmit reap path - we have already checked that the BD_ENET_TX_READY bit is clear, and as the hardware only ever clears this bit, there is no way this test can ever be true. Acked-by: Fugang Duan <[email protected]> Signed-off-by: Russell King <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2014-07-08net: fec: add support for dumping transmit ring on timeoutRussell King1-0/+23
When we timeout on transmit, it would be useful to dump the transmit ring, so we can see the ring state. This can be helpful to diagnose the cause of transmit timeouts. Acked-by: Fugang Duan <[email protected]> Signed-off-by: Russell King <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2014-07-08net: fec: reorder ethtool ops to match order in struct declarationRussell King1-7/+5
This allows us to merge two separate preprocessor conditionals together. Acked-by: Fugang Duan <[email protected]> Signed-off-by: Russell King <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2014-07-08net: fec: clear receive interrupts before processing a packetRussell King1-0/+2
Clear any pending receive interrupt before we process a pending packet. This helps to avoid any spurious interrupts being raised after we have fully cleaned the receive ring, while still allowing an interrupt to be raised if we receive another packet. The position of this is critical: we must do this prior to reading the next packet status to avoid potentially dropping an interrupt when a packet is still pending. Acked-by: Fugang Duan <[email protected]> Signed-off-by: Russell King <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2014-07-08net: fec: replace delayed work with standard workRussell King2-26/+16
As of "better implementation of iMX6 ERR006358 quirk", we no longer have a requirement for a delayed work. Moreover, the work is now only used for timeout purposes, so the timeout flag is also pointless - we set it each time we queue the work, and the work clears it. Replace the fec_enet_delayed_work struct with a standard work_struct, resulting in simplified timeout handling code. Acked-by: Fugang Duan <[email protected]> Signed-off-by: Russell King <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2014-07-08net: fec: better implementation of iMX6 ERR006358 quirkRussell King2-27/+4
Using a (delayed) workqueue for ERR006358 is not correct - a work queue is a single-trigger device. Once the work queue has been scheduled, it can't be re-scheduled until it has been run. This can cause problems - with an appropriate packet timing, we can end up with packets queued, but not sent by the hardware, resulting in the transmit timeout firing. Re-implement this as per the workaround detailed in the ERR006358 documentation - if there are packets waiting to be sent when we service the transmit ring, and we see that the transmitter is not running, kick the transmitter to run the pending entries in the ring. Testing here with a 10Mbit half duplex link sees the resulting iperf TCP bandwidth increase from between 1 to 2Mbps to between 8 to 9Mbps. Acked-by: Fugang Duan <[email protected]> Signed-off-by: Russell King <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2014-07-08net: mvneta: Fix big endian issue in mvneta_txq_desc_csum()Thomas Fitzsimmons1-1/+1
This commit fixes the command value generated for CSUM calculation when running in big endian mode. The Ethernet protocol ID for IP was being unconditionally byte-swapped in the layer 3 protocol check (with swab16), which caused the mvneta driver to not function correctly in big endian mode. This patch byte-swaps the ID conditionally with htons. Cc: <[email protected]> # v3.13+ Signed-off-by: Thomas Fitzsimmons <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2014-07-08xen-netback: Adding debugfs "io_ring_qX" filesZoltan Kiss4-2/+200
This patch adds debugfs capabilities to netback. There used to be a similar patch floating around for classic kernel, but it used procfs. It is based on a very similar blkback patch. It creates xen-netback/[vifname]/io_ring_q[queueno] files, reading them output various ring variables etc. Writing "kick" into it imitates an interrupt happened, it can be useful to check whether the ring is just stalled due to a missed interrupt. Signed-off-by: Zoltan Kiss <[email protected]> Cc: [email protected] Cc: [email protected] Cc: [email protected] Signed-off-by: David S. Miller <[email protected]>
2014-07-08net: fec: clean up duplex mode handlingRussell King1-12/+12
Many places call fec_restart() with the second parameter being some kind of previously saved duplex value, but only two places call it with some other setting. This is at odds with how the other link settings are handled, and used to be racy before the rtnl locks were added to fec_restart()'s various call paths. Clean this up so all link capabilities are handled in the same way - saved into the fec_enet_private structure, and then fec_restart() acts on those settings. Acked-by: Fugang Duan <[email protected]> Signed-off-by: Russell King <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2014-07-08net: fec: quiesce packet processing when taking link down in ↵Russell King1-0/+4
fec_enet_adjust_link() When the link goes down, the adjust_link method will be called, but there is no synchronisation to ensure that we won't be processing some last remaining packets via the NAPI handlers while performing a reset of the device. Add the necessary synchronisation to ensure that packet processing is complete before we stop and reset the FEC. Acked-by: Fugang Duan <[email protected]> Signed-off-by: Russell King <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2014-07-08net: fec: quiesce packet processing before changing featuresRussell King1-9/+16
Changing the features (receive checksumming) requires the hardware to be reprogrammed, and also changes the checks in the receive packet processing. The current implementation has a race - fec_set_features() changes the flags which alter the receive packet processing while the adapter is active, and potentially receiving frames. Only after we've modified the software flag do we shutdown and reconfigure the hardware. This can lead to packets being received and marked with a valid checksum (via CHECKSUM_UNNECESSARY) when the hardware checksum validation has not yet been enabled. We must quiesce the device, then change the software configuration for this feature, and then resume the device if it was previously running. The resulting code structure also allows us to add other configuration features in this path without having to quiesce and resume the network interface and device. Acked-by: Fugang Duan <[email protected]> Signed-off-by: Russell King <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2014-07-08net: fec: quiesce packet processing before stopping device in fec_set_features()Russell King1-1/+1
fec_set_features() calls fec_stop() to stop the transmit ring while the transmit queue is still active. This can lead to the transmit ring being restarted by an intervening packet queued for transmission, or by the tx quirk timer expiring. Fix this by disabling NAPI (which ensures that the NAPI handlers are not running), and then take the transmit lock while we stop and restart the adapter (which prevents new packets being queued). Acked-by: Fugang Duan <[email protected]> Signed-off-by: Russell King <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2014-07-08net: fec: quiesce packet processing before stopping device in fec_suspend()Russell King1-7/+9
fec_suspend() calls fec_stop() to stop the transmit ring while the transmit packet processing is still active. This can lead to the transmit queue being restarted by an intervening packet queued for transmission, or by the tx quirk timer expiring. Fix this by disabling NAPI first, which will ensure that the NAPI handlers are not running. Then, take the transmit lock before detaching the netif device. This ensures that there are no races with the transmit path - and also ensures that the watchdog won't fire. We can then safely stop the ethernet device itself, knowing that the rest of the driver is safely shut down. On resume, we bring the device back up in reverse order - we restart the device, reattach the device (under the tx lock), and then enable the NAPI handlers. We also need to adjust the close function to cope with this new sequence, so that it's possible to cleanly close down the driver after the hardware fails to resume (eg, due to the regulator_enable() or pinctrl calls in the resume path returning an error.) Acked-by: Fugang Duan <[email protected]> Signed-off-by: Russell King <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2014-07-08net: fec: remove inappropriate calls around fec_restart()Russell King1-20/+6
This is the second stage to "move calls to quiesce/resume packet processing out of fec_restart()", where we remove calls which are not appropriate to the call site. In the majority of cases, there is no need to detach and reattach the interface as we are holding the queue xmit lock across the reset. The exception to that is in fec_resume(), where we are already detached by the suspend function. Here, we can remove the call to detach the interface. We also do not need to stop the transmit queue. Holding the xmit lock is enough to ensure that the transmit packet processing is not running while we perform our task. However, since fec_restart() always cleans the rings, we call netif_wake_queue() (or netif_device_attach() in the case of resume) just before dropping the xmit lock. This prevents the watchdog firing. Lastly, always call napi_enable() after the device has been reattached in the resume path so that we know that the transmit packet processing is already in an enabled state, so we don't call netif_wake_queue() while detached. Acked-by: Fugang Duan <[email protected]> Signed-off-by: Russell King <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2014-07-08net: fec: move calls to quiesce/resume packet processing out of fec_restart()Russell King1-19/+45
Move the calls to quiesce and resume packet processing out of fec_restart() to its call sites. This is the first step in a two stage clean up of this code, where we just move the calls out of fec_restart() without changing them. Not everywhere needs to issue these calls, and not everywhere needs all of these calls to be issued. Acked-by: Fugang Duan <[email protected]> Signed-off-by: Russell King <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2014-07-08net: fec: only restart or stop the device if it is present and runningRussell King1-5/+14
Avoid calling fec_restart() or fec_stop() while the device is down or not present (iow suspended.) Although the ndo_timeout method will only be called if the device is present and running, we defer this to a work queue. The work queue can run independently, and so needs to repeat these checks to ensure that a restart doesn't occur after the device has been taken down or detached for suspend. In this case, we call fec_restart() in the resume path, so nothing is lost. For fec_set_features, we add a call to fec_restart() in fec_enet_open() to ensure that the hardware is appropriate programmed when the interface is opened. fec_set_features() call should not occur while we're suspended, so we don't have to worry about that case. The adjust_link needs similar treatment - this also is called from a work queue, which may be run independently after we have taken the device down and detached it. In this case, we just mark the link down and take no further action. We will reset things appropriately once the device is up and running again, at which point we will receive another adjust_link callback. Acked-by: Fugang Duan <[email protected]> Signed-off-by: Russell King <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2014-07-08net: fec: ensure fec_enet_close() copes with resume failureRussell King1-2/+2
When the FEC is suspended, the device is detached. Upon resume failure, the device is left in detached mode, possibly with some of the required clocks not running. We don't want to be poking the device in that state because as it may cause bus errors. If the device is marked detached, avoid calling fec_stop(). This depends upon: "net:fec: improve safety of suspend/resume paths" Acked-by: Fugang Duan <[email protected]> Signed-off-by: Russell King <[email protected]> Signed-off-by: David S. Miller <[email protected]>
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