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2014-06-04Merge branch 'irq-core-for-linus' of ↵Linus Torvalds1-3/+3
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip into next Pull core irq updates from Thomas Gleixner: "The irq department delivers: - Another tree wide update to get rid of the horrible create_irq interface along with its even more horrible variants. That also gets rid of the last leftovers of the initial sparse irq hackery. arch/driver specific changes have been either acked or ignored. - A fix for the spurious interrupt detection logic with threaded interrupts. - A new ARM SoC interrupt controller - The usual pile of fixes and improvements all over the place" * 'irq-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (40 commits) Documentation: brcmstb-l2: Add Broadcom STB Level-2 interrupt controller binding irqchip: brcmstb-l2: Add Broadcom Set Top Box Level-2 interrupt controller genirq: Improve documentation to match current implementation ARM: iop13xx: fix msi support with sparse IRQ genirq: Provide !SMP stub for irq_set_affinity_notifier() irqchip: armada-370-xp: Move the devicetree binding documentation irqchip: gic: Use mask field in GICC_IAR genirq: Remove dynamic_irq mess ia64: Use irq_init_desc genirq: Replace dynamic_irq_init/cleanup genirq: Remove irq_reserve_irq[s] genirq: Replace reserve_irqs in core code s390: Avoid call to irq_reserve_irqs() s390: Remove pointless arch_show_interrupts() s390: pci: Check return value of alloc_irq_desc() proper sh: intc: Remove pointless irq_reserve_irqs() invocation x86, irq: Remove pointless irq_reserve_irqs() call genirq: Make create/destroy_irq() ia64 private tile: Use SPARSE_IRQ tile: pci: Use irq_alloc/free_hwirq() ...
2014-06-03Merge branch 'locking-core-for-linus' of ↵Linus Torvalds14-54/+54
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip into next Pull core locking updates from Ingo Molnar: "The main changes in this cycle were: - reduced/streamlined smp_mb__*() interface that allows more usecases and makes the existing ones less buggy, especially in rarer architectures - add rwsem implementation comments - bump up lockdep limits" * 'locking-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (33 commits) rwsem: Add comments to explain the meaning of the rwsem's count field lockdep: Increase static allocations arch: Mass conversion of smp_mb__*() arch,doc: Convert smp_mb__*() arch,xtensa: Convert smp_mb__*() arch,x86: Convert smp_mb__*() arch,tile: Convert smp_mb__*() arch,sparc: Convert smp_mb__*() arch,sh: Convert smp_mb__*() arch,score: Convert smp_mb__*() arch,s390: Convert smp_mb__*() arch,powerpc: Convert smp_mb__*() arch,parisc: Convert smp_mb__*() arch,openrisc: Convert smp_mb__*() arch,mn10300: Convert smp_mb__*() arch,mips: Convert smp_mb__*() arch,metag: Convert smp_mb__*() arch,m68k: Convert smp_mb__*() arch,m32r: Convert smp_mb__*() arch,ia64: Convert smp_mb__*() ...
2014-05-22stmmac: Remove unbalanced clk_disable callHans de Goede1-3/+1
The stmmac_open call was calling clk_disable_unprepare on phy init failure, but it never calls clk_prepare_enable, this causes a WARN_ON in the clk framework to trigger if for some reason phy init fails. Signed-off-by: Hans de Goede <hdegoede@redhat.com> Acked-by: Giuseppe Cavallaro <peppe.cavallaro@st.com> Acked-by: Chen-Yu Tsai <wens@csie.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-05-18bnx2x: Convert return 0 to return rcJoe Perches2-2/+2
These "return 0;" uses seem wrong as there are rc variables where error return values are set but unused. Signed-off-by: Joe Perches <joe@perches.com> Acked-by: Dmitry Kravkov <Dmitry.Kravkov@qlogic.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-05-16net/mlx4_core: Add UPDATE_QP SRIOV wrapper supportMatan Barak4-2/+97
This patch adds UPDATE_QP SRIOV wrapper support. The mechanism is a general one, but currently only source MAC index changes are allowed for VFs. Signed-off-by: Matan Barak <matanb@mellanox.com> Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-05-16tile: net: Use irq_alloc/free_hwirqThomas Gleixner1-3/+3
No functional change. Just convert to the new interface. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Grant Likely <grant.likely@linaro.org> Cc: Tony Luck <tony.luck@intel.com> Cc: Peter Zijlstra <peterz@infradead.org> Acked-by: Chris Metcalf <cmetcalf@tilera.com> Link: http://lkml.kernel.org/r/20140507154337.410843062@linutronix.de Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2014-05-15Altera TSE: Disable Multicast filtering to workaround problemVince Bridgers1-0/+5
This patch disables multicast hash filtering if present in the hardware and uses promiscuous mode instead until the problem with multicast filtering has been debugged, integrated and tested. Signed-off-by: Vince Bridgers <vbridgers2013@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-05-15Altera TSE: Fix sparse errors and warningsVince Bridgers10-275/+367
This patch fixes the many sparse errors and warnings contained in the initial submission of the Altera Triple Speed Ethernet driver, and a few minor cppcheck warnings. Changes are tested on ARM and NIOS2 example designs, and compile tested against multiple architectures. Typical issues addressed were as follows: altera_tse_ethtool.c:136:19: warning: incorrect type in argument 1 (different address spaces) altera_tse_ethtool.c:136:19: expected void const volatile [noderef] <asn:2>*addr altera_tse_ethtool.c:136:19: got unsigned int *<noident> ... altera_sgdma.c:129:31: warning: cast removes address space of expression Signed-off-by: Vince Bridgers <vbridgers2013@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-05-14be2net: enable interrupts in EEH resumeKalesh AP1-0/+6
On some BE3 FW versions, after a HW reset, interrupts will remain disabled for each function. So, explicitly enable the interrupts in the eeh_resume handler, else after an eeh recovery interrupts wouldn't work. Signed-off-by: Kalesh AP <kalesh.purayil@emulex.com> Signed-off-by: Sathya Perla <sathya.perla@emulex.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-05-14jme: Fix unmap loop counting error:Neil Horman1-5/+5
In my recent fix (76a691d0a: fix dma unmap warning), Ben Hutchings noted that my loop count was incorrect. Where j started at startidx, it should have started at zero, and gone on for count entries, not to endidx. Additionally, a DMA resource exhaustion should drop the frame and (for now), return NETDEV_TX_OK, not NETEV_TX_BUSY. This patch fixes both of those issues: Signed-off-by: Neil Horman <nhorman@tuxdriver.com> CC: Ben Hutchings <ben@decadent.org.uk> CC: "David S. Miller" <davem@davemloft.net> CC: Guo-Fu Tseng <cooldavid@cooldavid.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-05-12sfc: fix calling of free_irq with already free vectorNikolay Aleksandrov1-6/+8
If the sfc driver is in legacy interrupt mode (either explicitly by using interrupt_mode module param or by falling back to it) it will hit a warning at kernel/irq/manage.c because it will try to free an irq which wasn't allocated by it in the first place because the MSI(X) irqs are zero and it'll try to free them unconditionally. So fix it by checking if we're in legacy mode and freeing the appropriate irqs. CC: Zenghui Shi <zshi@redhat.com> CC: Ben Hutchings <ben@decadent.org.uk> CC: <linux-net-drivers@solarflare.com> CC: Shradha Shah <sshah@solarflare.com> CC: David S. Miller <davem@davemloft.net> Fixes: 1899c111a535 ("sfc: Fix IRQ cleanup in case of a probe failure") Reported-by: Zenghui Shi <zshi@redhat.com> Signed-off-by: Nikolay Aleksandrov <nikolay@redhat.com> Acked-by: Shradha Shah <sshah@solarflare.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-05-09net: cassini: use nested lock annotationEmil Goode1-1/+1
In the cas_lock_tx function we acquire multiple locks in a loop and need to use nested lock annotation to prevent lockdep warnings. Reported-by: Meelis Roos <mroos@linux.ee> Signed-off-by: Emil Goode <emilgoode@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-05-09bnx2x: Fix UNDI driver unloadYuval Mintz1-3/+7
Commit 91ebb928b "bnx2x: Add support for Multi-Function UNDI" contains a bug which prevent the emptying of the device's Rx buffers before reset. As a result, on new boards it is likely HW will reach some fatal assertion once its interfaces load after UNDI was previously loaded. Signed-off-by: Yuval Mintz <Yuval.Mintz@qlogic.com> Signed-off-by: Ariel Elior <Ariel.Elior@qlogic.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-05-09net: cpsw: add missing of_node_putJohan Hovold1-0/+1
Add missing of_node_put to avoid kref leak. Signed-off-by: Johan Hovold <jhovold@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-05-09net: cpsw: fix null dereference at probeJohan Hovold1-0/+4
Fix null-pointer dereference at probe when the mdio platform device is missing (e.g. when it has been disabled in DT). Cc: stable <stable@vger.kernel.org> # v3.8 Signed-off-by: Johan Hovold <jhovold@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-05-09Revert "net: eth: cpsw: Correctly attach to GPIO bitbang MDIO driver"Johan Hovold1-12/+2
This reverts commit f8d56d8f892be43a2404356073e16401eb5a42e6 ("net: eth: cpsw: Correctly attach to GPIO bitbang MDIO driver"). Fix potential null-pointer dereference at probe if the mdio-gpio device has not been successfully probed yet. The offending commit is plain wrong for a number of reasons. First of all it accesses internal driver data of an unrelated device. Neither does it check that the data is non-null (which it is in case the device has not been probed yet). Furthermore, the decision on whether to treat any driver data according to the mdio-gpio driver's internals is made based on the node name. But the name is not compared against "mdio" which is the normal name for the node, but rather against "gpio" which the node does not have to be named (and shouldn't be according to the binding documentation). [ If this hack is to be kept out-of-tree it should at least be matching against the compatible property. ] Cc: Stefan Roese <sr@denx.de> Cc: stable <stable@vger.kernel.org> # v3.14 Signed-off-by: Johan Hovold <jhovold@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-05-08Driver for Beckhoff CX5020 EtherCAT master module.Darek Marcinkiewicz3-0/+719
This driver adds support for EtherCAT master module located on CCAT FPGA found on Beckhoff CX series industrial PCs. The driver exposes EtherCAT master as an ethernet interface. EtherCAT is a fieldbus protocol defined on top of ethernet and Beckhoff CX5020 PCs come with built-in EtherCAT master module located on a FPGA, which in turn is connected to a PCI bus. Signed-off-by: Dariusz Marcinkiewicz <reksio@newterm.pl> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-05-07qlcnic: Set real_num_{tx|rx}_queues properlyShahed Shaikh2-18/+47
Do not set netdev->real_num_tx_queues directly, let netif_set_real_num_tx_queues() take care of it. Do not overwrite netdev->num_tx_queues everytime when driver changes its Tx ring size through ethtool -L and also notify stack to update number of Rx queues. Signed-off-by: Shahed Shaikh <shahed.shaikh@qlogic.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-05-07qlcnic: Fix panic while dumping TX queues on TX timeoutManish Chopra1-2/+6
o In case of non-multi TX queue mode driver does not initialize "crb_intr_mask" pointer and driver was accessing that un-initialized pointer while dumping TX queue. So dump "crb_intr_mask" only when it is initilaized. Signed-off-by: Manish Chopra <manish.chopra@qlogic.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-05-07jme: Fix DMA unmap warningNeil Horman1-6/+47
The jme driver forgot to check the return status from pci_map_page in its tx path, causing a dma api warning on unmap. Easy fix, just do the check and augment the tx path to tell the stack that the driver is busy so we re-queue the frame. Signed-off-by: Neil Horman <nhorman@tuxdriver.com> CC: Guo-Fu Tseng <cooldavid@cooldavid.org> CC: "David S. Miller" <davem@davemloft.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-05-05net: macb: Fix race between HW and driverSoren Brinkmann1-10/+0
Under "heavy" RX load, the driver cannot handle the descriptors fast enough. In detail, when a descriptor is consumed, its used flag is cleared and once the RX budget is consumed all descriptors with a cleared used flag are prepared to receive more data. Under load though, the HW may constantly receive more data and use those descriptors with a cleared used flag before they are actually prepared for next usage. The head and tail pointers into the RX-ring should always be valid and we can omit clearing and checking of the used flag. Signed-off-by: Soren Brinkmann <soren.brinkmann@xilinx.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-05-05net: macb: Remove 'unlikely' optimizationSoren Brinkmann1-1/+1
Coverage data suggests that the unlikely case of receiving data while the receive handler is running may not be that unlikely. Coverage data after running iperf for a while: 91320: 891: work_done = bp->macbgem_ops.mog_rx(bp, budget); 91320: 892: if (work_done < budget) { 2362: 893: napi_complete(napi); -: 894: -: 895: /* Packets received while interrupts were disabled */ 4724: 896: status = macb_readl(bp, RSR); 2362: 897: if (unlikely(status)) { 762: 898: if (bp->caps & MACB_CAPS_ISR_CLEAR_ON_WRITE) 762: 899: macb_writel(bp, ISR, MACB_BIT(RCOMP)); -: 900: napi_reschedule(napi); -: 901: } else { 1600: 902: macb_writel(bp, IER, MACB_RX_INT_FLAGS); -: 903: } -: 904: } Signed-off-by: Soren Brinkmann <soren.brinkmann@xilinx.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-05-05net: macb: Re-enable RX interrupt only when RX is doneSoren Brinkmann1-7/+6
When data is received during the driver processing received data the NAPI is re-scheduled. In that case the RX interrupt should not be re-enabled. Signed-off-by: Soren Brinkmann <soren.brinkmann@xilinx.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-05-05net: macb: Clear interrupt flagsSoren Brinkmann1-0/+10
A few interrupt flags were not cleared in the ISR, resulting in a sytem trapped in the ISR in cases one of those interrupts occurred. Clear all flags to avoid such situations. Signed-off-by: Soren Brinkmann <soren.brinkmann@xilinx.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-05-05net: macb: Pass same size to DMA_UNMAP as used for DMA_MAPSoren Brinkmann1-1/+1
Just as commit "net: macb: DMA-unmap full rx-buffer" (48330e08fa168395b9fd9f369f06cca1df204361), pass the size that was used for mapping the memory also to the unmap routine to avoid warnings from the DMA_API. Signed-off-by: Soren Brinkmann <soren.brinkmann@xilinx.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-05-05Merge branch 'master' of ↵David S. Miller3-29/+46
git://git.kernel.org/pub/scm/linux/kernel/git/jkirsher/net Jeff Kirsher says: ==================== Intel Wired LAN Driver Updates This series contains updates to e1000e only. David provides four fixes for e1000e, first is a workaround for a hardware erratum on 82579 devices which experienced packet loss in gigabit and 100 speeds when interconnect between the PHY and MAC is exiting K1 power saving state. Second expands the scope of a workaround to include i217 and i218 parts as well to address over aggressive transmit behavior when connecting at 10Mbs half-duplex. Next is to resolve a reported link flap issue on 82579 parts which was root caused as an interoperability problem between 82579 and at least some Broadcom PHYs in the Energy Efficient Ethernet wake mechanism. Lastly, restricts the workaround of putting the PHY into MDIO slow mode to access the PHY id to relevant parts since this issue has been fixed on the newer hardware. ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
2014-05-05e1000e: Restrict MDIO Slow Mode workaround to relevant partsDavid Ertman1-6/+8
It has been determined that the workaround of putting the PHY into MDIO slow mode to access the PHY id is not necessary with Lynx Point and newer parts. The issue that necessitated the workaround has been fixed on the newer hardware. We will maintains, as a last ditch attempt, the conversion to MDIO Slow Mode in the failure branch when attempting to access the PHY id so as to cover all contingencies. Signed-off-by: Dave Ertman <davidx.m.ertman@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2014-05-05e1000e: Fix issue with link flap on 82579David Ertman2-0/+13
Several customers have reported a link flap issue on 82579. The symptoms are random and intermittent link losses when 82579 is connected to specific link partners. Issue has been root caused as interoperability problem between 82579 and at least some Broadcom PHYs in the Energy Efficient Ethernet wake mechanism. To fix the issue, we are disabling the Phase Locked Loop shutdown in 100M Low Power Idle. This solution will cause an increase of power in 100M EEE link. It will cost additional 28mW in this specific mode. Cc: Lukasz Adamczuk <lukasz.adamczuk@intel.com> Signed-off-by: Dave Ertman <davidx.m.ertman@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2014-05-05e1000e: Expand workaround for 10Mb HD throughput bugDavid Ertman2-4/+12
In commit 772d05c51c4f4896c120ad418b1e91144a2ac813 "e1000e: slow performance between two 82579 connected via 10Mbit hub", a workaround was put into place to address the overaggressive transmit behavior of 82579 parts when connecting at 10Mbs half-duplex. This same behavior is seen on i217 and i218 parts as well. This patch expands the original workaround to encompass these parts. Signed-off-by: Dave Ertman <davidx.m.ertman@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2014-05-05e1000e: Workaround for dropped packets in Gig/100 speeds on 82579David Ertman2-19/+13
This is a workaround for a HW erratum on 82579 devices. Erratum is #23 in Intel 6 Series Chipset and Intel C200 Series Chipset specification Update June 2013. Problem: 82579 parts experience packet loss in Gig and 100 speeds when interconnect between PHY and MAC is exiting K1 power saving state. This was previously believed to only affect 1Gig speed, but has been observed at 100Mbs also. Workaround: Disable K1 for 82579 devices at Gig and 100 speeds. Signed-off-by: Dave Ertman <davidx.m.ertman@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2014-05-05net/mlx4_core: Don't issue PCIe speed/width checks for VFsEyal Perry1-1/+2
Carrying out PCI speed/width checks through pcie_get_minimum_link() on VFs yield wrong results, so remove them. Fixes: b912b2f ('net/mlx4_core: Warn if device doesn't have enough PCI bandwidth') Signed-off-by: Eyal Perry <eyalpe@mellanox.com> Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-05-05net/mlx4_core: Load the Eth driver firstOr Gerlitz1-2/+2
When running in SRIOV mode, VM that is assigned with a non-provisioned Ethernet VFs get themselves a random mac when the Eth driver starts. In this case, if the IB driver startup code that deals with RoCE runs first, it will use a zero mac as the source mac for the Para-Virtual CM MADs which is buggy. To handle that, we change the order of loading. Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-05-05net/mlx4_core: Fix slave id computation for single port VFMatan Barak1-15/+20
The code that deals with computing the slave id based on a given GID gave wrong results when the number of single port VFs wasn't the same for port 1 vs. port 2 and the relevant VF is single ported on port 2. As a result, incoming CM MADs were dispatched to the wrong VF. Fixed that and added documentation to clarify the computation steps. Fixes: 449fc48 ('net/mlx4: Adapt code for N-Port VF') Signed-off-by: Matan Barak <matanb@mellanox.com> Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-05-05net/mlx4_core: Adjust port number in qp_attach wrapper when detachingJack Morgenstein1-0/+23
When using single ported VFs and the VF is using port 2, we need to adjust the port accordingly (change it from 1 to 2). Fixes: 449fc48 ('net/mlx4: Adapt code for N-Port VF') Signed-off-by: Matan Barak <matanb@mellanox.com> Signed-off-by: Jack Morgenstein <jackm@mellanox.com> Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-05-05Altera TSE: ALTERA_TSE should depend on HAS_DMAGeert Uytterhoeven1-0/+1
If NO_DMA=y: drivers/built-in.o: In function `altera_tse_probe': altera_tse_main.c:(.text+0x25ec2e): undefined reference to `dma_set_mask' altera_tse_main.c:(.text+0x25ec78): undefined reference to `dma_supported' altera_tse_main.c:(.text+0x25ecb6): undefined reference to `dma_supported' drivers/built-in.o: In function `sgdma_async_read': altera_sgdma.c:(.text+0x25f620): undefined reference to `dma_sync_single_for_cpu' drivers/built-in.o: In function `sgdma_uninitialize': (.text+0x25f678): undefined reference to `dma_unmap_single' drivers/built-in.o: In function `sgdma_uninitialize': (.text+0x25f696): undefined reference to `dma_unmap_single' drivers/built-in.o: In function `sgdma_initialize': (.text+0x25f6f0): undefined reference to `dma_map_single' drivers/built-in.o: In function `sgdma_initialize': (.text+0x25f702): undefined reference to `dma_mapping_error' drivers/built-in.o: In function `sgdma_tx_buffer': (.text+0x25f92a): undefined reference to `dma_sync_single_for_cpu' drivers/built-in.o: In function `sgdma_rx_status': (.text+0x25fa24): undefined reference to `dma_sync_single_for_cpu' make[3]: *** [vmlinux] Error 1 Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org> Acked-by: Vince Bridgers <vbridgers2013@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-05-02net: mvmdio: Check for a valid interrupt instead of an errorEzequiel Garcia1-1/+4
The following commit: commit 9ec36cafe43bf835f8f29273597a5b0cbc8267ef Author: Rob Herring <robh@kernel.org> Date: Wed Apr 23 17:57:41 2014 -0500 of/irq: do irq resolution in platform_get_irq changed platform_get_irq() which now returns EINVAL and EPROBE_DEFER, in addition to ENXIO. If there's no interrupt for mvmdio, platform_get_irq() returns EINVAL, but we currently check only for ENXIO. Fix this by looking for a positive integer, which is the proper way of validating a virtual interrupt number. While at it, add a proper handling for the deferral probe case. Signed-off-by: Ezequiel Garcia <ezequiel.garcia@free-electrons.com> Reviewed-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-04-30gianfar: Avoid unnecessary reg accesses in adjust_link()Claudiu Manoil1-110/+113
For phy devices that don't issue interrupts upon link state changes, phylib polls the link state resulting in repeated calls to adjust_link(), even if the link state didn't change. As a result, some mac registers are repeatedly read and written with the same values, which is not ok. To fix this, adjust_link() has been refactored to check first whether the link state has changed and to take action only if needed, updating mac registers and local state variables. The 'new_state' local flag, set if one of the link params changed (link, speed or duplex), has been rendered useless and removed by this refactoring. Signed-off-by: Claudiu Manoil <claudiu.manoil@freescale.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-04-30net: sxgbe: Added set function for interrupt on completeByungho An3-0/+11
This patch adds set_rx_int_on_com function for interrupt when dma is completed. Signed-off-by: Byungho An <bh74.an@samsung.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-04-30net: sxgbe: Added rxqueue enable functionByungho An4-0/+36
This patch adds rxqueue enable function according to number of rxqueue and adds rxqueue disable function for removing. Signed-off-by: Byungho An <bh74.an@samsung.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-04-30net: sxgbe: sw reset moved to probe functionByungho An2-13/+22
This patch moves sw reset to probe function because sw reset is needed early stage before open function. Signed-off-by: Byungho An <bh74.an@samsung.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-04-30cxgb4: Decode PCIe Gen3 link speedRoland Dreier1-0/+2
Add handling for " 8 GT/s" in print_port_info(). Signed-off-by: Roland Dreier <roland@purestorage.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-04-30Altera TSE: Add missing include to silence sparse warningsTobias Klauser1-0/+1
This fixes the following sparse warnings: drivers/net/ethernet/altera/altera_msgdma.c:23:5: warning: symbol 'msgdma_initialize' was not declared. Should it be static? drivers/net/ethernet/altera/altera_msgdma.c:28:6: warning: symbol 'msgdma_uninitialize' was not declared. Should it be static? drivers/net/ethernet/altera/altera_msgdma.c:32:6: warning: symbol 'msgdma_reset' was not declared. Should it be static? drivers/net/ethernet/altera/altera_msgdma.c:77:6: warning: symbol 'msgdma_disable_rxirq' was not declared. Should it be static? drivers/net/ethernet/altera/altera_msgdma.c:83:6: warning: symbol 'msgdma_enable_rxirq' was not declared. Should it be static? drivers/net/ethernet/altera/altera_msgdma.c:89:6: warning: symbol 'msgdma_disable_txirq' was not declared. Should it be static? drivers/net/ethernet/altera/altera_msgdma.c:95:6: warning: symbol 'msgdma_enable_txirq' was not declared. Should it be static? drivers/net/ethernet/altera/altera_msgdma.c:101:6: warning: symbol 'msgdma_clear_rxirq' was not declared. Should it be static? drivers/net/ethernet/altera/altera_msgdma.c:107:6: warning: symbol 'msgdma_clear_txirq' was not declared. Should it be static? drivers/net/ethernet/altera/altera_msgdma.c:114:5: warning: symbol 'msgdma_tx_buffer' was not declared. Should it be static? drivers/net/ethernet/altera/altera_msgdma.c:129:5: warning: symbol 'msgdma_tx_completions' was not declared. Should it be static? drivers/net/ethernet/altera/altera_msgdma.c:154:5: warning: symbol 'msgdma_add_rx_desc' was not declared. Should it be static? drivers/net/ethernet/altera/altera_msgdma.c:181:5: warning: symbol 'msgdma_rx_status' was not declared. Should it be static? Signed-off-by: Tobias Klauser <tklauser@distanz.ch> Acked-by: Vince Bridgers <vbridgers2013@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-04-30Altera TSE: Fix DMA secriptor length initializationTobias Klauser1-37/+37
sgdma_descrip is a function name as well as the name of a struct. In sgdma_initialize(), we should initialize the descriptor length field with the actual length of a descriptor not with the size of the function. In order to prevent such things from happening in the future, rename the function to sgdma_setup_descrip(). Found by sparse which yields the following warning: drivers/net/ethernet/altera/altera_sgdma.c:74:30: warning: expression using sizeof on a function Signed-off-by: Tobias Klauser <tklauser@distanz.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-04-27arc_emac: add clock handlingHeiko Stübner2-11/+37
This adds ability for the arc_emac to really handle its supplying clock. To get the needed clock-frequency either a real clock or the previous clock-frequency property must be provided. Signed-off-by: Heiko Stuebner <heiko@sntech.de> Tested-by: Max Schwarz <max.schwarz@online.de> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-04-27arc_emac: fix probe error pathHeiko Stübner1-9/+14
The probe function at the moment only frees the netdev but does not disconnect the phy or removes the mdio bus it registered. Signed-off-by: Heiko Stuebner <heiko@sntech.de> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-04-27cxgb4: Update Kconfig to include Chelsio T5 adapterHariprasad Shenai1-6/+7
Signed-off-by: Hariprasad Shenai <hariprasad@chelsio.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-04-26i40e: fix Timesync Tx interrupt handler codeJacob Keller1-4/+1
This patch fixes the PTP Tx timestamp interrupt handler. The original code misinterpreted the interrupt handler design. We were clearing the ena_mask bit for the Timesync interrupts. This is done to indicate that the interrupt will be handled in a scheduled work item (instead of immediately) and that work item is responsible for re-enabling the interrupts. However, the Tx timestamp was being handled immediately and nothing was ever re-enabling it. This resulted in a single interrupt working for the life of the driver. This patch fixes the issue by instead clearing the bit from icr0 which is used to indicate that the interrupt was immediately handled and can be re-enabled right away. This patch also clears up a related issue due to writing the PRTTSYN_STAT_0 register, which was unintentionally clearing the cause bits for Timesync interrupts. Change-ID: I057bd70d53c302f60fab78246989cbdfa469d83b Signed-off-by: Jacob Keller <jacob.e.keller@intel.com> Acked-by: Anjali Singhai Jain <anjali.singhai@intel.com> Acked-by: Shannon Nelson <shannon.nelson@intel.com> Tested-by: Kavindya Deegala <kavindya.s.deegala@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-04-26Altera TSE: Change driver name used by EthtoolVince Bridgers1-1/+7
This patch changes the name used by Ethtool to something more conventional in preparation for TSE Ethtool register dump support to be added in the near future. Signed-off-by: Vince Bridgers <vbridgers2013@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-04-26Altera TSE: Fix Panic in probe routine when phy probe failsVince Bridgers1-21/+24
This patch addresses a fault in the error recovery path of the probe routine where the netdev structure was not being unregistered properly leading to a panic only when the phy probe failed. Abbreviated panic stack seen is as follows: (free_netdev+0xXX) from (altera_tse_probe+0xXX) (altera_tse_probe+0xXX) from (platform_drv_probe+0xXX) (platform_drv_probe+0xXX) from (driver_probe_device+0xXX) (driver_probe_device+0xXX) from (__driver_attach+0xXX) (__driver_attach+0xXX) from (bus_for_each_dev+0xXX) (bus_for_each_dev+0xXX) from (driver_attach+0xXX) (driver_attach+0xXX) from (bus_add_driver+0xXX) (bus_add_driver+0xXX) from (driver_register+0xXX) (driver_register+0xXX) from (__platform_driver_register+0xXX) (__platform_driver_register+0xXX) from (altera_tse_driver_init+0xXX) (altera_tse_driver_init+0xXX) from (do_one_initcall+0xXX) (do_one_initcall+0xXX) from (kernel_init_freeable+0xXX) (kernel_init_freeable+0xXX) from (kernel_init+0xXX) (kernel_init+0xXX) from (ret_from_fork+0xXX) Signed-off-by: Vince Bridgers <vbridgers2013@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-04-26Altera TSE: Set the Pause Quanta value to the IEEE default valueVince Bridgers2-0/+4
This patch initializes the pause quanta set for transmitted pause frames to the IEEE specified default of 0xffff. Signed-off-by: Vince Bridgers <vbridgers2013@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>