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2019-05-03intel_th: Add "rtit" source deviceAlexander Shishkin
In some versions of Intel TH, the Software Trace Hub (STH) has a second MMIO BAR dedicated to the input from Intel PT. This calls for a new subdevice that will be enumerated if the corresponding BAR is present. Signed-off-by: Alexander Shishkin <alexander.shishkin@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-05-03intel_th: Skip subdevices if their MMIO is missingAlexander Shishkin
If a subdevice requires an MMIO region that wasn't in the resources passed down from the glue layer, don't instantiate it, but don't error out. This means that that particular subdevice doesn't exist for this instance of Intel TH, which is a perfectly normal situation. This applies, for example, to the "rtit" source device. Signed-off-by: Alexander Shishkin <alexander.shishkin@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-05-03intel_th: Rework resource passing between glue layers and coreAlexander Shishkin
Currently, MMIO resource numbers in the TH driver core correspond to PCI BAR numbers, because in the beginning there was only the PCI glue layer. This created some confusion when the ACPI glue layer was added. To avoid confusion and remove glue-specific code from the driver core, split the resource indices between core and glue layers and change the API so that the driver core receives the MMIO resources in the same fixed order. At the same time, make the IRQ always be a parameter to intel_th_alloc() instead of sometimes passing it as a resource. Signed-off-by: Alexander Shishkin <alexander.shishkin@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-05-03intel_th: SPDX-ify the documentationAlexander Shishkin
Add the SPDX header to the Intel TH documentation. Signed-off-by: Alexander Shishkin <alexander.shishkin@linux.intel.com> Tested-by: Mathieu Poirier <mathieu.poirier@linaro.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-05-03intel_th: msu: Fix single mode with IOMMUAlexander Shishkin
Currently, the pages that are allocated for the single mode of MSC are not mapped into the device's dma space and the code is incorrectly using *_to_phys() in place of a dma address. This fails with IOMMU enabled and is otherwise bad practice. Fix the single mode buffer allocation to map the pages into the device's DMA space. Signed-off-by: Alexander Shishkin <alexander.shishkin@linux.intel.com> Fixes: ba82664c134e ("intel_th: Add Memory Storage Unit driver") Cc: stable@vger.kernel.org # v4.4+ Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-05-03Merge tag 'drm-fixes-2019-05-03' of git://anongit.freedesktop.org/drm/drmLinus Torvalds
Pull drm fix from Dave Airlie: "Just a single qxl revert" * tag 'drm-fixes-2019-05-03' of git://anongit.freedesktop.org/drm/drm: Revert "drm/qxl: drop prime import/export callbacks"
2019-05-03Merge tag 'gnss-5.2-rc1' of ↵Greg Kroah-Hartman
https://git.kernel.org/pub/scm/linux/kernel/git/johan/gnss into char-misc-next Johan writes: GNSS updates for 5.2-rc1 Here are the GNSS updates for 5.2-rc1; only a new u-blox compatible. All have been in linux-next with no reported issues. Signed-off-by: Johan Hovold <johan@kernel.org> * tag 'gnss-5.2-rc1' of https://git.kernel.org/pub/scm/linux/kernel/git/johan/gnss: gnss: ubx: add u-blox,neo-6m compatible dt-bindings: gnss: add u-blox,neo-6m compatible
2019-05-03Merge tag 'usb-for-v5.2' of ↵Greg Kroah-Hartman
git://git.kernel.org/pub/scm/linux/kernel/git/balbi/usb into usb-next Felipe writes: USB: changes for v5.2 merge window With a total of 50 non-merge commits, this is not a large pull request. Most of the changes are, again, in dwc2 (37%) and dwc3 (32%) with the rest of it scattered among other UDCs, function drivers and device-tree bindings. No really big feature this time around apart from support to Amlogic being added to both dwc3 and dwc2 drivers. * tag 'usb-for-v5.2' of git://git.kernel.org/pub/scm/linux/kernel/git/balbi/usb: (50 commits) usb: dwc3: Rename DWC3_DCTL_LPM_ERRATA usb: dwc3: Fix default lpm_nyet_threshold value usb: dwc3: debug: Print GET_STATUS(device) tracepoint usb: dwc3: Do core validation early on probe usb: dwc3: gadget: Set lpm_capable usb: gadget: atmel: tie wake lock to running clock usb: gadget: atmel: support USB suspend usb: gadget: atmel_usba_udc: simplify setting of interrupt-enabled mask dwc2: gadget: Fix completed transfer size calculation in DDMA usb: dwc2: Set lpm mode parameters depend on HW configuration usb: dwc2: Fix channel disable flow usb: dwc2: Set actual frame number for completed ISOC transfer usb: gadget: do not use __constant_cpu_to_le16 usb: dwc2: gadget: Increase descriptors count for ISOC's usb: introduce usb_ep_type_string() function usb: dwc3: move synchronize_irq() out of the spinlock protected block usb: dwc3: Free resource immediately after use usb: dwc3: of-simple: Convert to bulk clk API usb: dwc2: Delayed status support usb: gadget: udc: lpc32xx: rework interrupt handling ...
2019-05-03Merge 5.1-rc7 into usb-nextGreg Kroah-Hartman
We need this to make the usb-gadget branch merge cleaner. And for testing to keep from hitting the same issues already fixed. Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-05-03clk: imx: clk-pllv3: mark expected switch fall-throughsGustavo A. R. Silva
In preparation to enabling -Wimplicit-fallthrough, mark switch cases where we are expecting to fall through. This patch fixes the following warnings: drivers/clk/imx/clk-pllv3.c: In function ‘imx_clk_pllv3’: drivers/clk/imx/clk-pllv3.c:446:18: warning: this statement may fall through [-Wimplicit-fallthrough=] pll->div_shift = 1; ~~~~~~~~~~~~~~~^~~ drivers/clk/imx/clk-pllv3.c:447:2: note: here case IMX_PLLV3_USB: ^~~~ drivers/clk/imx/clk-pllv3.c:453:21: warning: this statement may fall through [-Wimplicit-fallthrough=] pll->denom_offset = PLL_IMX7_DENOM_OFFSET; ^ drivers/clk/imx/clk-pllv3.c:454:2: note: here case IMX_PLLV3_AV: ^~~~ Warning level 3 was used: -Wimplicit-fallthrough=3 This patch is part of the ongoing efforts to enable -Wimplicit-fallthrough. Fixes: b4a4cb5a0454 ("clk: imx: correct i.MX7D AV PLL num/denom offset") Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com> Reviewed-by: Anson Huang <Anson.Huang@nxp.com> Signed-off-by: Stephen Boyd <sboyd@kernel.org>
2019-05-03Merge tag 'usb-serial-5.2-rc1' of ↵Greg Kroah-Hartman
https://git.kernel.org/pub/scm/linux/kernel/git/johan/usb-serial into usb-next Johan writes: USB-serial updates for 5.2-rc1 Here are the USB-serial updates for 5.2-rc1, including: - flow-control related fixes for pl2303 - fix for an initial-termios issue - fix for a couple of unthrottle() races - fix for f81232 interrupt-handling issues - improved f81232 overrun handling - support for higher f81232 line speeds - support for f81232 break control Included are also various clean ups. All but the last four commits have been in linux-next and with no reported issues. Signed-off-by: Johan Hovold <johan@kernel.org> * tag 'usb-serial-5.2-rc1' of https://git.kernel.org/pub/scm/linux/kernel/git/johan/usb-serial: (22 commits) USB: serial: f81232: implement break control USB: serial: f81232: add high baud rate support USB: serial: f81232: clear overrun flag USB: serial: f81232: fix interrupt worker not stop USB: serial: io_edgeport: fix up switch fall-through comments USB: serial: drop unused iflag macro USB: serial: drop unnecessary goto USB: serial: clean up throttle handling USB: serial: fix unthrottle races USB: serial: spcp8x5: simplify init_termios USB: serial: oti6858: simplify init_termios USB: serial: iuu_phoenix: simplify init_termios USB: serial: iuu_phoenix: drop bogus initial cflag USB: serial: cypress_m8: clean up initial-termios handling USB: serial: cypress_m8: drop unused termios USB: serial: cypress_m8: drop unused driver data flag USB: serial: ark3116: drop redundant init_termios USB: serial: fix initial-termios handling USB: serial: digi_acceleport: clean up set_termios USB: serial: digi_acceleport: clean up modem-control handling ...
2019-05-03Merge tag 'clk-fixes-for-linus' of ↵Linus Torvalds
ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/clk/linux Pull clk fixes from Stephen Boyd: "Two fixes for the NKMP clks on Allwinner SoCs, a locking fix for clkdev where we forgot to hold a lock while iterating a list that can change, and finally a build fix that adds some stubs for clk APIs that are used by devfreq drivers on platforms without the clk APIs" * tag 'clk-fixes-for-linus' of ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/clk/linux: clk: Add missing stubs for a few functions clkdev: Hold clocks_mutex while iterating clocks list clk: sunxi-ng: nkmp: Explain why zero width check is needed clk: sunxi-ng: nkmp: Avoid GENMASK(-1, 0)
2019-05-03Merge tag 'sound-5.1' of ↵Linus Torvalds
ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/tiwai/sound Pull sound fixes from Takashi Iwai: "A few stable fixes at this round. The USB Line6 audio fixes are a bit large, but they are rather trivial and pretty much device-specific, so should be safe to apply at this late stage. Ditto for other HD-audio quirks" * tag 'sound-5.1' of ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/tiwai/sound: ALSA: hda/realtek - Apply the fixup for ASUS Q325UAR ALSA: line6: use dynamic buffers ALSA: hda/realtek - Fixed Dell AIO speaker noise ALSA: hda/realtek - Add new Dell platform for headset mode
2019-05-03s390/vdso: drop unnecessary cc-ldoptionNick Desaulniers
Towards the goal of removing cc-ldoption, it seems that --hash-style= was added to binutils 2.17.50.0.2 in 2006. The minimal required version of binutils for the kernel according to Documentation/process/changes.rst is 2.20. Link: https://gcc.gnu.org/ml/gcc/2007-01/msg01141.html Cc: clang-built-linux@googlegroups.com Suggested-by: Masahiro Yamada <yamada.masahiro@socionext.com> Signed-off-by: Nick Desaulniers <ndesaulniers@google.com> Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2019-05-03s390: fix clang -Wpointer-sign warnigns in boot codeArnd Bergmann
The arch/s390/boot directory is built with its own set of compiler options that does not include -Wno-pointer-sign like the rest of the kernel does, this causes a lot of harmless but correct warnings when building with clang. For the atomics, we can add type casts to avoid the warnings, for everything else the easiest way is to slightly adapt the types to be more consistent. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Reviewed-by: Nick Desaulniers <ndesaulniers@google.com> Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2019-05-03s390: drop CONFIG_VIRT_TO_BUSArnd Bergmann
VIRT_TO_BUS is only used for legacy device PCI and ISA drivers using virt_to_bus() instead of the streaming DMA mapping API, and the remaining drivers generally don't work on 64-bit architectures. Two of these drivers also cause a build warning on s390, so instead of trying to fix that, let's just disable the option as we do on most architectures now. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2019-05-03s390: boot, purgatory: pass $(CLANG_FLAGS) where neededArnd Bergmann
The purgatory and boot Makefiles do not inherit the original cflags, so clang falls back to the default target architecture when building it, typically this would be x86 when cross-compiling. Add $(CLANG_FLAGS) everywhere so we pass the correct --target=s390x-linux option when cross-compiling. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Reviewed-by: Nathan Chancellor <natechancellor@gmail.com> Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2019-05-03s390: only build for new CPUs with clangArnd Bergmann
llvm does does not understand -march=z9-109 and older target specifiers, so disable the respective Kconfig settings and the logic to make the boot code work on old systems when building with clang. Part of the early boot code is normally compiled with -march=z900 for maximum compatibility. This also has to get changed with clang to the oldest supported ISA, which is -march=z10 here. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2019-05-03dt-bindings: i2c: riic: document r7s9210 supportChris Brandt
Document support for the R7S9210 (RZ/A2) SoC. Also explicitly document bindings for the R7S72100 (RZ/A1) SoC. Signed-off-by: Chris Brandt <chris.brandt@renesas.com> Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be> Reviewed-by: Rob Herring <robh@kernel.org> Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
2019-05-03i2c: imx-lpi2c: Use __maybe_unused instead of #if CONFIG_PM_SLEEPAnson Huang
Use __maybe_unused for power management related functions instead of #if CONFIG_PM_SLEEP to simply the code. Signed-off-by: Anson Huang <Anson.Huang@nxp.com> Acked-by: Dong Aisheng <aisheng.dong@nxp.com> Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
2019-05-03Merge branch 'NXP-SJA1105-DSA-driver'David S. Miller
Vladimir Oltean says: ==================== NXP SJA1105 DSA driver This patchset adds a DSA driver for the SPI-controlled NXP SJA1105 switch. Due to the hardware's unfriendliness, most of its state needs to be shadowed in kernel memory by the driver. To support this and keep a decent amount of cleanliness in the code, a new generic API for converting between CPU-accessible ("unpacked") structures and hardware-accessible ("packed") structures is proposed and used. The driver is GPL-2.0 licensed. The source code files which are licensed as BSD-3-Clause are hardware support files and derivative of the userspace NXP sja1105-tool program, which is BSD-3-Clause licensed. TODO items: * Add support for traffic. * Add full support for the P/Q/R/S series. The patches were mostly tested on a first-generation T device. * Add timestamping support and PTP clock manipulation. * Figure out how the tc-taprio hardware offload that was just proposed by Vinicius can be used to configure the switch's time-aware scheduler. * Rework link state callbacks to use phylink once the SGMII port is supported. Changes in v5: 1. Removed trailing empty lines at the end of files. 2. Moved the lib/packing.c file under a CONFIG_PACKING option instead of having it always built-in. The module is GPL licensed, which applies to its distribution in binary form, but the code is dual-licensed which means it can be used in projects with other licenses as well. 3. Made SJA1105 driver select CONFIG_PACKING and CONFIG_CRC32. v4 patchset can be found at: https://lwn.net/Articles/787077/ Changes in v4: 1. Previous patchset was broken apart, and for the moment the driver is configuring the switch as unmanaged. Support for regular and management traffic, as well as for PTP timestamping, will be submitted once the basic driver is accepted. Some core DSA patches were also broken out of the series, and are a dependency for this series: https://patchwork.ozlabs.org/project/netdev/list/?series=105069 2. Addressed Jiri Pirko's feedback about too generic function and macro naming. 3. Re-introduced ETH_P_DSA_8021Q. v3 patchset can be found at: https://lkml.org/lkml/2019/4/12/978 Changes in v3: 1. Removed the patch for a dedicated Ethertype to use with 802.1Q DSA tagging 2. Changed the SJA1105 switch tagging protocol sysfs label from "sja1105" to "8021q" to denote to users such as tcpdump that the structure is more generic. 3. Respun previous patch "net: dsa: Allow drivers to modulate between presence and absence of tagging". Current equivalent patch is called "net: dsa: Allow drivers to filter packets they can decode source port from" and at least allows reception of management traffic during the time when switch tagging is not enabled. 4. Added DSA-level fixes for the bridge core not unsetting vlan_filtering when ports leave. The global VLAN filtering is treated as a special case. Made the mt7530 driver use this. This patch benefits the SJA1105 because otherwise traffic in standalone mode would no longer work after removing the ports from a vlan_filtering bridge, since the driver and the hardware would be in an inconsistent state. 5. Restructured the documentation as rst. This depends upon the recently submitted "[PATCH net-next] Documentation: net: dsa: transition to the rst format": https://patchwork.ozlabs.org/patch/1084658/. v2 patchset can be found at: https://www.spinics.net/lists/netdev/msg563454.html Changes in v2: 1. Device ID is no longer auto-detected but enforced based on explicit DT compatible string. This helps with stricter checking of DT bindings. 2. Group all device-specific operations into a sja1105_info structure and avoid using the IS_ET() and IS_PQRS() macros at runtime as much as possible. 3. Added more verbiage to commit messages and documentation. 4. Treat the case where RGMII internal delays are requested through DT bindings and return error. 5. Miscellaneous cosmetic cleanup in sja1105_clocking.c 6. Not advertising link features that are not supported, such as pause frames and the half duplex modes. 7. Fixed a mistake in previous patchset where the switch tagging was not actually enabled (lost during a rebase). This brought up another uncaught issue where switching at runtime between tagging and no-tagging was not supported by DSA. Fixed up the mistake in "net: dsa: sja1105: Add support for traffic through standalone ports", and added the new patch "net: dsa: Allow drivers to modulate between presence and absence of tagging" to address the other issue. 8. Added a workaround for switch resets cutting a frame in the middle of transmission, which would throw off some link partners. 9. Changed the TPID from ETH_P_EDSA (0xDADA) to a newly introduced one: ETH_P_DSA_8021Q (0xDADB). Uncovered another mistake in the previous patchset with a missing ntohs(), which was not caught because 0xDADA is endian-agnostic. 10. Made NET_DSA_TAG_8021Q select VLAN_8021Q 11. Renamed __dsa_port_vlan_add to dsa_port_vid_add and not to dsa_port_vlan_add_trans, as suggested, because the corresponding _del function does not have a transactional phase and the naming is more uniform this way. v1 patchset can be found at: https://www.spinics.net/lists/netdev/msg561589.html Changes from RFC: 1. Removed the packing code for the static configuration tables that were not currently used 2. Removed the code for unpacking a static configuration structure from a memory buffer (not used) 3. Completely removed the SGMII stubs, since the configuration is not complete anyway. 4. Moved some code from the SJA1105 introduction commit into the patch that used it. 5. Made the code for checking global VLAN filtering generic and made b53 driver use it. 6. Made mt7530 driver use the new generic dp->vlan_filtering 7. Fixed check for stringset in .get_sset_count 8. Minor cleanup in sja1105_clocking.c 9. Fixed a confusing typo in DSA RFC can be found at: https://www.mail-archive.com/netdev@vger.kernel.org/msg291717.html ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
2019-05-03dt-bindings: net: dsa: Add documentation for NXP SJA1105 driverVladimir Oltean
Signed-off-by: Vladimir Oltean <olteanv@gmail.com> Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-05-03Documentation: net: dsa: Add details about NXP SJA1105 driverVladimir Oltean
Signed-off-by: Vladimir Oltean <olteanv@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-05-03net: dsa: sja1105: Reject unsupported link modes for ANVladimir Oltean
Ethernet flow control: The switch MAC does not consume, nor does it emit pause frames. It simply forwards them as any other Ethernet frame (and since the DMAC is, per IEEE spec, 01-80-C2-00-00-01, it means they are filtered as link-local traffic and forwarded to the CPU, which can't do anything useful with them). Duplex: There is no duplex setting in the SJA1105 MAC. It is known to forward traffic at line rate on the same port in both directions. Therefore it must be that it only supports full duplex. Signed-off-by: Vladimir Oltean <olteanv@gmail.com> Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-05-03net: dsa: sja1105: Prevent PHY jabbering during switch resetVladimir Oltean
Resetting the switch at runtime is currently done while changing the vlan_filtering setting (due to the required TPID change). But reset is asynchronous with packet egress, and the switch core will not wait for egress to finish before carrying on with the reset operation. As a result, a connected PHY such as the BCM5464 would see an unterminated Ethernet frame and start to jabber (repeat the last seen Ethernet symbols - jabber is by definition an oversized Ethernet frame with bad FCS). This behavior is strange in itself, but it also causes the MACs of some link partners (such as the FRDM-LS1012A) to completely lock up. So as a remedy for this situation, when switch reset is required, simply inhibit Tx on all ports, and wait for the necessary time for the eventual one frame left in the egress queue (not even the Tx inhibit command is instantaneous) to be flushed. Signed-off-by: Vladimir Oltean <olteanv@gmail.com> Reviewed-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-05-03net: dsa: sja1105: Add support for configuring address ageing timeVladimir Oltean
If STP is active, this setting is applied on bridged ports each time an Ethernet link is established (topology changes). Since the setting is global to the switch and a reset is required to change it, resets are prevented if the new callback does not change the value that the hardware already is programmed for. Signed-off-by: Vladimir Oltean <olteanv@gmail.com> Reviewed-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-05-03net: dsa: sja1105: Add support for ethtool port countersVladimir Oltean
Signed-off-by: Vladimir Oltean <olteanv@gmail.com> Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-05-03net: dsa: sja1105: Add support for VLAN operationsVladimir Oltean
VLAN filtering cannot be properly disabled in SJA1105. So in order to emulate the "no VLAN awareness" behavior (not dropping traffic that is tagged with a VID that isn't configured on the port), we need to hack another switch feature: programmable TPID (which is 0x8100 for 802.1Q). We are reprogramming the TPID to a bogus value which leaves the switch thinking that all traffic is untagged, and therefore accepts it. Under a vlan_filtering bridge, the proper TPID of ETH_P_8021Q is installed again, and the switch starts identifying 802.1Q-tagged traffic. Signed-off-by: Vladimir Oltean <olteanv@gmail.com> Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-05-03ether: Add dedicated Ethertype for pseudo-802.1Q DSA taggingVladimir Oltean
There are two possible utilizations so far: - Switch devices that don't support a native insertion/extraction header on the CPU port may still enjoy the benefits of port isolation with a custom VLAN tag. For this, they need to have a customizable TPID in hardware and a new Ethertype to distinguish between real 802.1Q traffic and the private tags used for port separation. - Switches that don't support the deactivation of VLAN awareness, but still want to have a mode in which they accept all traffic, including frames that are tagged with a VLAN not configured on their ports, may use this as a fake to trick the hardware into thinking that the TPID for VLAN is something other than 0x8100. What follows after the ETH_P_DSA_8021Q EtherType is a regular VLAN header (TCI), however there is no other EtherType that can be used for this purpose and doesn't already have a well-defined meaning. ETH_P_8021AD, ETH_P_QINQ1, ETH_P_QINQ2 and ETH_P_QINQ3 expect that another follow-up VLAN tag is present, which is not the case here. Signed-off-by: Vladimir Oltean <olteanv@gmail.com> Suggested-by: Andrew Lunn <andrew@lunn.ch> Reviewed-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-05-03net: dsa: sja1105: Error out if RGMII delays are requested in DTVladimir Oltean
Documentation/devicetree/bindings/net/ethernet.txt is confusing because it says what the MAC should not do, but not what it *should* do: * "rgmii-rxid" (RGMII with internal RX delay provided by the PHY, the MAC should not add an RX delay in this case) The gap in semantics is threefold: 1. Is it illegal for the MAC to apply the Rx internal delay by itself, and simplify the phy_mode (mask off "rgmii-rxid" into "rgmii") before passing it to of_phy_connect? The documentation would suggest yes. 1. For "rgmii-rxid", while the situation with the Rx clock skew is more or less clear (needs to be added by the PHY), what should the MAC driver do about the Tx delays? Is it an implicit wild card for the MAC to apply delays in the Tx direction if it can? What if those were already added as serpentine PCB traces, how could that be made more obvious through DT bindings so that the MAC doesn't attempt to add them twice and again potentially break the link? 3. If the interface is a fixed-link and therefore the PHY object is fixed (a purely software entity that obviously cannot add clock skew), what is the meaning of the above property? So an interpretation of the RGMII bindings was chosen that hopefully does not contradict their intention but also makes them more applied. The SJA1105 driver understands to act upon "rgmii-*id" phy-mode bindings if the port is in the PHY role (either explicitly, or if it is a fixed-link). Otherwise it always passes the duty of setting up delays to the PHY driver. The error behavior that this patch adds is required on SJA1105E/T where the MAC really cannot apply internal delays. If the other end of the fixed-link cannot apply RGMII delays either (this would be specified through its own DT bindings), then the situation requires PCB delays. For SJA1105P/Q/R/S, this is however hardware supported and the error is thus only temporary. I created a stub function pointer for configuring delays per-port on RXC and TXC, and will implement it when I have access to a board with this hardware setup. Meanwhile do not allow the user to select an invalid configuration. Signed-off-by: Vladimir Oltean <olteanv@gmail.com> Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Reviewed-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-05-03net: dsa: sja1105: Add support for FDB and MDB managementVladimir Oltean
Currently only the (more difficult) first generation E/T series is supported. Here the TCAM is only 4-way associative, and to know where the hardware will search for a FDB entry, we need to perform the same hash algorithm in order to install the entry in the correct bin. On P/Q/R/S, the TCAM should be fully associative. However the SPI command interface is different, and because I don't have access to a new-generation device at the moment, support for it is TODO. Signed-off-by: Vladimir Oltean <olteanv@gmail.com> Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-05-03net: dsa: Introduce driver for NXP SJA1105 5-port L2 switchVladimir Oltean
At this moment the following is supported: * Link state management through phylib * Autonomous L2 forwarding managed through iproute2 bridge commands. IP termination must be done currently through the master netdevice, since the switch is unmanaged at this point and using DSA_TAG_PROTO_NONE. Signed-off-by: Vladimir Oltean <olteanv@gmail.com> Signed-off-by: Georg Waibel <georg.waibel@sensor-technik.de> Acked-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-05-03lib: Add support for generic packing operationsVladimir Oltean
This provides an unified API for accessing register bit fields regardless of memory layout. The basic unit of data for these API functions is the u64. The process of transforming an u64 from native CPU encoding into the peripheral's encoding is called 'pack', and transforming it from peripheral to native CPU encoding is 'unpack'. Signed-off-by: Vladimir Oltean <olteanv@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-05-03i2c-piix4: Add Hygon Dhyana SMBus supportPu Wen
The Hygon Dhyana CPU has the SMBus device with PCI device ID 0x790b, which is the same as AMD CZ SMBus device. So add Hygon Dhyana support to the i2c-piix4 driver by using the code path of AMD. Signed-off-by: Pu Wen <puwen@hygon.cn> Reviewed-by: Jean Delvare <jdelvare@suse.de> Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
2019-05-03i2c: core: apply 'is_suspended' check for SMBus, tooWolfram Sang
We checked I2C calls, but not SMBus. Refactor the helper to an inline function and use it for both, I2C and SMBus. Fixes: 9ac6cb5fbb17 ("i2c: add suspended flag and accessors for i2c adapters") Reported-by: Peter Rosin <peda@axentia.se> Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com> Reviewed-by: Simon Horman <horms+renesas@verge.net.au> Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
2019-05-03net: macb: shrink macb_platform_data structureNicolas Ferre
This structure was used intensively for machine specific values when DT was not used. Since the removal of AVR32 from the kernel, this structure is only used for passing clocks from PCI macb wrapper, all other fields being 0. All other known platforms use DT. Remove the leftovers but make sure that PCI macb still works as expected by using default values: - phydev->irq is set to PHY_POLL by mdiobus_alloc() - mii_bus->phy_mask is cleared while allocating it - bp->phy_interface is set to PHY_INTERFACE_MODE_MII if mode not found in DT. This simplifies driver probe path and particularly phy handling. Signed-off-by: Nicolas Ferre <nicolas.ferre@microchip.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-05-03net: macb: remove redundant struct phy_device declarationNicolas Ferre
While moving the chunk of code during 739de9a1563a ("net: macb: Reorganize macb_mii bringup"), the declaration of struct phy_device declaration was kept. It's not useful in this function as we alrady have a phydev pointer. Signed-off-by: Nicolas Ferre <nicolas.ferre@microchip.com> Reviewed-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-05-03MAINTAINERS: update git tree for sound entriesRoss Zwisler
Several sound related entries in MAINTAINERS refer to the old git tree at "git://git.alsa-project.org/alsa-kernel.git". This is no longer used for development, and Takashi Iwai's kernel.org tree is used instead. Signed-off-by: Ross Zwisler <zwisler@google.com> Reviewed-by: Takashi Sakamoto <o-takashi@sakamocchi.jp> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2019-05-03RDMA/core: Allow detaching gid attribute netdevice for RoCEParav Pandit
When there is active traffic through a GID, a QP/AH holds reference to this GID entry. RoCE GID entry holds reference to its attached netdevice. Due to this when netdevice is deleted by admin user, its refcount is not dropped. Therefore, while deleting RoCE GID, wait for all GID attribute's netdev users to finish accessing netdev in rcu context. Once all users done accessing it, release the netdev refcount. Signed-off-by: Huy Nguyen <huyn@mellanox.com> Signed-off-by: Parav Pandit <parav@mellanox.com> Signed-off-by: Leon Romanovsky <leonro@mellanox.com> Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
2019-05-03net/smc: Use rdma_read_gid_l2_fields to L2 fieldsParav Pandit
Use core provided API to fill the source MAC address and use rdma_read_gid_attr_ndev_rcu() to get stable netdev. This is preparation patch to allow gid attribute to become NULL when associated net device is removed. Signed-off-by: Parav Pandit <parav@mellanox.com> Signed-off-by: Leon Romanovsky <leonro@mellanox.com> Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
2019-05-03RDMA/rxe: Use rdma_read_gid_attr_ndev_rcu to access netdevParav Pandit
Use rdma_read_gid_attr_ndev_rcu() to access netdevice attached to GID entry under rcu lock. This ensures that while working on the netdevice of the GID, it doesn't get freed. Signed-off-by: Parav Pandit <parav@mellanox.com> Signed-off-by: Leon Romanovsky <leonro@mellanox.com> Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
2019-05-03RDMA/cma: Use rdma_read_gid_attr_ndev_rcu to access netdevParav Pandit
To access the netdevice of the GID attribute, use an existing API rdma_read_gid_attr_ndev_rcu(). This further reduces dependency on open access to netdevice of GID attribute. Signed-off-by: Parav Pandit <parav@mellanox.com> Signed-off-by: Leon Romanovsky <leonro@mellanox.com> Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
2019-05-03RDMA: Introduce and use GID attr helper to read RoCE L2 fieldsParav Pandit
Instead of RoCE drivers figuring out vlan, smac fields while working on QP/AH, provide a helper routine to read the L2 fields such as vlan_id and source mac address. This moves logic from mlx5 driver to core for wider usage for RoCE ports. This is a preparation patch to allow detaching netdev in subsequent patch. Signed-off-by: Parav Pandit <parav@mellanox.com> Signed-off-by: Leon Romanovsky <leonro@mellanox.com> Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
2019-05-03IB/cm: Reduce dependency on gid attribute ndev checkParav Pandit
GID type to path record type conversion can be done directly based on port type and gid attribute type. There is no need to find out using indirect way by its GID attribute's ndev field. Signed-off-by: Parav Pandit <parav@mellanox.com> Signed-off-by: Leon Romanovsky <leonro@mellanox.com> Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
2019-05-03RDMA/rxe: Consider skb reserve space based on netdev of GIDParav Pandit
Always consider the skb reserve space based on netdevice of the GID attribute, regardless of vlan or non vlan netdevice. Fixes: 43c9fc509fa5 ("rdma_rxe: make rxe work over 802.1q VLAN devices") Signed-off-by: Parav Pandit <parav@mellanox.com> Signed-off-by: Leon Romanovsky <leonro@mellanox.com> Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
2019-05-03scripts/tags.sh: fix direct execution of scripts/tags.shMasahiro Yamada
I thought this script was run via "make tags" etc. but some people run it directly. Prior to commit a9a49c2ad9b9 ("kbuild: use $(srctree) instead of KBUILD_SRC to check out-of-tree build"), in such a usecase, "tree" was set empty since KBUILD_SRC is undefined. Now, "tree" is set to "${srctree}/", which is evaluated to "/". Fix it by taking into account the case where "srctree" is unset. Link: https://lkml.org/lkml/2019/4/19/501 Fixes: a9a49c2ad9b9 ("kbuild: use $(srctree) instead of KBUILD_SRC to check out-of-tree build") Reported-by: Sergey Senozhatsky <sergey.senozhatsky.work@gmail.com> Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2019-05-03scripts: override locale from environment when running recordmcount.plDaniel Dadap
recordmcount.pl uses a set of regular expressions to parse the output of objdump(1). However, if objdump(1) output is localized, it may not match the regular expressions, thereby preventing recordmcount.pl from parsing object files correctly. In order to allow recordmcount.pl to function correctly regardless of the current locale settings, set LANG=C when running objdump(1). LC_ALL is already unset in the top-level Makefile, so it is not necessary to also override that environment variable. Signed-off-by: Daniel Dadap <ddadap@nvidia.com> Reviewed-by: Robert Morell <rmorell@nvidia.com> Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2019-05-03samples: kobject: allow CONFIG_SAMPLE_KOBJECT to become yMasahiro Yamada
This sample works well as builtin. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2019-05-03samples: seccomp: turn CONFIG_SAMPLE_SECCOMP into a bool optionMasahiro Yamada
The prompt of CONFIG_SAMPLE_SECCOMP claims this is "loadable module only", which is invalid. samples/seccomp/ only contains host programs, so having it tristate is pointless. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2019-05-03kbuild: move Documentation to vmlinux-alldirsMasahiro Yamada
A minor code cleanup. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
generated by cgit (git 2.34.1) at 2025-09-15 07:55:10 +0000