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| * | | | | Merge remote-tracking branch 'mauro-exp/docbook3' into death-to-docbookJonathan Corbet2017-05-181-0/+1
| |\ \ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Mauro says: This patch series convert the remaining DocBooks to ReST. The first version was originally send as 3 patch series: [PATCH 00/36] Convert DocBook documents to ReST [PATCH 0/5] Convert more books to ReST [PATCH 00/13] Get rid of DocBook The lsm book was added as if it were a text file under Documentation. The plan is to merge it with another file under Documentation/security, after both this series and a security Documentation patch series gets merged. It also adjusts some Sphinx-pedantic errors/warnings on some kernel-doc markups. I also added some patches here to add PDF output for all existing ReST books.
| | * | | | | net: fix some identation issues at kernel-doc markupsMauro Carvalho Chehab2017-05-161-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Sphinx is very pedantic with regards to identation and escape sequences: ./include/net/sock.h:1967: ERROR: Unexpected indentation. ./include/net/sock.h:1969: ERROR: Unexpected indentation. ./include/net/sock.h:1970: WARNING: Block quote ends without a blank line; unexpected unindent. ./include/net/sock.h:1971: WARNING: Block quote ends without a blank line; unexpected unindent. ./include/net/sock.h:2268: WARNING: Inline emphasis start-string without end-string. ./net/core/sock.c:2686: ERROR: Unexpected indentation. ./net/core/sock.c:2687: WARNING: Block quote ends without a blank line; unexpected unindent. ./net/core/datagram.c:182: WARNING: Inline emphasis start-string without end-string. ./include/linux/netdevice.h:1444: ERROR: Unexpected indentation. ./drivers/net/phy/phy.c:381: ERROR: Unexpected indentation. ./drivers/net/phy/phy.c:382: WARNING: Block quote ends without a blank line; unexpected unindent. - Fix spacing where needed; - Properly escape constants; - Use a literal block for a race description. No functional changes. Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
* | | | | | | net: dp83640: Avoid NULL pointer dereference.Richard Cochran2017-06-231-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The function, skb_complete_tx_timestamp(), used to allow passing in a NULL pointer for the time stamps, but that was changed in commit 62bccb8cdb69051b95a55ab0c489e3cab261c8ef ("net-timestamp: Make the clone operation stand-alone from phy timestamping"), and the existing call sites, all of which are in the dp83640 driver, were fixed up. Even though the kernel-doc was subsequently updated in commit 7a76a021cd5a292be875fbc616daf03eab1e6996 ("net-timestamp: Update skb_complete_tx_timestamp comment"), still a bug fix from Manfred Rudigier came into the driver using the old semantics. Probably Manfred derived that patch from an older kernel version. This fix should be applied to the stable trees as well. Fixes: 81e8f2e930fe ("net: dp83640: Fix tx timestamp overflow handling.") Signed-off-by: Richard Cochran <richardcochran@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | | | | | | net/phy: micrel: configure intterupts after autoneg workaroundZach Brown2017-06-221-0/+2
| |_|_|_|_|/ |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The commit ("net/phy: micrel: Add workaround for bad autoneg") fixes an autoneg failure case by resetting the hardware. This turns off intterupts. Things will work themselves out if the phy polls, as it will figure out it's state during a poll. However if the phy uses only intterupts, the phy will stall, since interrupts are off. This patch fixes the issue by calling config_intr after resetting the phy. Fixes: d2fd719bcb0e ("net/phy: micrel: Add workaround for bad autoneg ") Signed-off-by: Zach Brown <zach.brown@ni.com> Reviewed-by: Andrew Lunn <andrew@lunn.ch> Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | | | | | net: phy: Fix MDIO_THUNDER dependenciesFlorian Fainelli2017-06-131-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | After commit 90eff9096c01 ("net: phy: Allow splitting MDIO bus/device support from PHYs") we could create a configuration where MDIO_DEVICE=y and PHYLIB=m which leads to the following undefined references: drivers/built-in.o: In function `thunder_mdiobus_pci_remove': >> mdio-thunder.c:(.text+0x2a212f): undefined reference to >> `mdiobus_unregister' >> mdio-thunder.c:(.text+0x2a2138): undefined reference to >> `mdiobus_free' drivers/built-in.o: In function `thunder_mdiobus_pci_probe': mdio-thunder.c:(.text+0x2a22e7): undefined reference to `devm_mdiobus_alloc_size' mdio-thunder.c:(.text+0x2a236f): undefined reference to `of_mdiobus_register' Reported-by: kbuild test robot <fengguang.wu@intel.com> Fixes: 90eff9096c01 ("net: phy: Allow splitting MDIO bus/device support from PHYs") Signed-off-by: Florian Fainelli <f.fainelli@gmail.com> Tested-by: Randy Dunlap <rdunlap@infradead.org> Signed-off-by: David S. Miller <davem@davemloft.net>
* | | | | | net: phy: add missing SPEED_14000Joe Perches2017-06-091-0/+2
| |_|_|_|/ |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | Fixes: 0d7e2d2166f6 ("IB/ipoib: add get_link_ksettings in ethtool") Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: Nicolas Dichtel <nicolas.dichtel@6wind.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | | | | net: phy: fix kernel-doc warningsRandy Dunlap2017-06-051-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Fix kernel-doc warnings (typo) in drivers/net/phy/phy.c: ..//drivers/net/phy/phy.c:259: warning: No description found for parameter 'features' ..//drivers/net/phy/phy.c:259: warning: Excess function parameter 'feature' description in 'phy_lookup_setting' Signed-off-by: Randy Dunlap <rdunlap@infradead.org> Reviewed-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
* | | | | net: phy: micrel: Restore led_mode and clk_sel on resumeLeonard Crestez2017-06-011-14/+28
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | These bits seem to be lost after a suspend/resume cycle so just set them again. Do this by splitting the handling of these bits into a function that is also called on resume. This patch fixes ethernet suspend/resume on imx6ul-14x14-evk boards. Signed-off-by: Leonard Crestez <leonard.crestez@nxp.com> Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | | | | net: fix auto-loading of Marvell DSA driverRussell King2017-05-311-0/+13
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Auto-loading of the Marvell DSA driver has stopped working with recent kernels. This seems to be due to the change of binding for DSA devices, moving them from the platform bus to the MDIO bus. In order for module auto-loading to work, we need to provide a MODALIAS string in the uevent file for the device. However, the device core does not automatically provide this, and needs each bus_type to implement a uevent method to generate these strings. The MDIO bus does not provide such a method, so no MODALIAS string is provided: .# cat /sys/bus/mdio_bus/devices/f1072004.mdio-mii\:04/uevent DRIVER=mv88e6085 OF_NAME=switch OF_FULLNAME=/soc/internal-regs/mdio@72004/switch@4 OF_COMPATIBLE_0=marvell,mv88e6085 OF_COMPATIBLE_N=1 In the case of OF-based devices, the solution is easy - of_device_uevent_modalias() does the work for us. After this is done, the uevent file looks like this: .# cat /sys/bus/mdio_bus/devices/f1072004.mdio-mii\:04/uevent DRIVER=mv88e6085 OF_NAME=switch OF_FULLNAME=/soc/internal-regs/mdio@72004/switch@4 OF_COMPATIBLE_0=marvell,mv88e6085 OF_COMPATIBLE_N=1 MODALIAS=of:NswitchT<NULL>Cmarvell,mv88e6085 which results in auto-loading of the Marvell DSA driver on Clearfog platforms. Fixes: c0405563a613 ("ARM: dts: armada-388-clearfog: Utilize new DSA binding") Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk> Reviewed-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
* | | | | net: phy: fix marvell phy status readingRussell King2017-05-311-2/+0
| |_|_|/ |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The Marvell driver incorrectly provides phydev->lp_advertising as the logical and of the link partner's advert and our advert. This is incorrect - this field is supposed to store the link parter's unmodified advertisment. This allows ethtool to report the correct link partner auto-negotiation status. Fixes: be937f1f89ca ("Marvell PHY m88e1111 driver fix") Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk> Reviewed-by: Andrew Lunn <andrew@lunn.ch> Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | | | net: phy: marvell: Limit errata to 88m1101Andrew Lunn2017-05-241-29/+37
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The 88m1101 has an errata when configuring autoneg. However, it was being applied to many other Marvell PHYs as well. Limit its scope to just the 88m1101. Fixes: 76884679c644 ("phylib: Add support for Marvell 88e1111S and 88e1145") Reported-by: Daniel Walker <danielwa@cisco.com> Signed-off-by: Andrew Lunn <andrew@lunn.ch> Acked-by: Harini Katakam <harinik@xilinx.com> Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | | | net/phy: fix mdio-octeon dependency and buildRandy Dunlap2017-05-241-1/+1
| |_|/ |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Fix build errors by making this driver depend on OF_MDIO, like several other similar drivers do. drivers/built-in.o: In function `octeon_mdiobus_remove': mdio-octeon.c:(.text+0x196ee0): undefined reference to `mdiobus_unregister' mdio-octeon.c:(.text+0x196ee8): undefined reference to `mdiobus_free' drivers/built-in.o: In function `octeon_mdiobus_probe': mdio-octeon.c:(.text+0x196f1d): undefined reference to `devm_mdiobus_alloc_size' mdio-octeon.c:(.text+0x196ffe): undefined reference to `of_mdiobus_register' mdio-octeon.c:(.text+0x197010): undefined reference to `mdiobus_free' Signed-off-by: Randy Dunlap <rdunlap@infradead.org> Cc: Andrew Lunn <andrew@lunn.ch> Cc: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | | mdio: mux: fix device_node_continue.cocci warningsJulia Lawall2017-05-151-1/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Device node iterators put the previous value of the index variable, so an explicit put causes a double put. In particular, of_mdiobus_register can fail before doing anything interesting, so one could view it as a no-op from the reference count point of view. Generated by: scripts/coccinelle/iterators/device_node_continue.cocci CC: Jon Mason <jon.mason@broadcom.com> Signed-off-by: Julia Lawall <julia.lawall@lip6.fr> Signed-off-by: Fengguang Wu <fengguang.wu@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | | net: phy: Call bus->reset() after releasing PHYs from resetFlorian Fainelli2017-05-111-3/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The API convention makes it that a given MDIO bus reset should be able to access PHY devices in its reset() callback and perform additional MDIO accesses in order to bring the bus and PHYs in a working state. Commit 69226896ad63 ("mdio_bus: Issue GPIO RESET to PHYs.") broke that contract by first calling bus->reset() and then release all PHYs from reset using their shared GPIO line, so restore the expected functionality here. Fixes: 69226896ad63 ("mdio_bus: Issue GPIO RESET to PHYs.") Signed-off-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | | mdio: mux: Correct mdio_mux_init error path issuesJon Mason2017-05-111-5/+7
|/ / | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | There is a potential unnecessary refcount decrement on error path of put_device(&pb->mii_bus->dev), as it is possible to avoid the of_mdio_find_bus() call if mux_bus is specified by the calling function. The same put_device() is not called in the error path if the devm_kzalloc of pb fails. This caused the variable used in the put_device() to be changed, as the pb pointer was obviously not set up. There is an unnecessary of_node_get() on child_bus_node if the of_mdiobus_register() is successful, as the for_each_available_child_of_node() automatically increments this. Thus the refcount on this node will always be +1 more than it should be. There is no of_node_put() on child_bus_node if the of_mdiobus_register() call fails. Finally, it is lacking devm_kfree() of pb in the error path. While this might not be technically necessary, it was present in other parts of the function. So, I am adding it where necessary to make it uniform. Signed-off-by: Jon Mason <jon.mason@broadcom.com> Fixes: f20e6657a875 ("mdio: mux: Enhanced MDIO mux framework for integrated multiplexers") Fixes: 0ca2997d1452 ("netdev/of/phy: Add MDIO bus multiplexer support.") Signed-off-by: David S. Miller <davem@davemloft.net>
* / net: mdio-mux: bcm-iproc: call mdiobus_free() in error pathJon Mason2017-05-081-1/+4
|/ | | | | | | | | | | | | | If an error is encountered in mdio_mux_init(), the error path will call mdiobus_free(). Since mdiobus_register() has been called prior to mdio_mux_init(), the bus->state will not be MDIOBUS_UNREGISTERED. This causes a BUG_ON() in mdiobus_free(). To correct this issue, add an error path for mdio_mux_init() which calls mdiobus_unregister() prior to mdiobus_free(). Signed-off-by: Jon Mason <jon.mason@broadcom.com> Fixes: 98bc865a1ec8 ("net: mdio-mux: Add MDIO mux driver for iProc SoCs") Acked-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* Merge branch 'for-linus' of ↵Linus Torvalds2017-05-021-1/+1
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial Pull trivial tree updates from Jiri Kosina. * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial: tty: fix comment for __tty_alloc_driver() init/main: properly align the multi-line comment init/main: Fix double "the" in comment Fix dead URLs to ftp.kernel.org drivers: Clean up duplicated email address treewide: Fix typo in xml/driver-api/basics.xml tools/testing/selftests/powerpc: remove redundant CFLAGS in Makefile: "-Wall -O2 -Wall" -> "-O2 -Wall" selftests/timers: Spelling s/privledges/privileges/ HID: picoLCD: Spelling s/REPORT_WRTIE_MEMORY/REPORT_WRITE_MEMORY/ net: phy: dp83848: Fix Typo UBI: Fix typos Documentation: ftrace.txt: Correct nice value of 120 priority net: fec: Fix typo in error msg and comment treewide: Fix typos in printk
| * net: phy: dp83848: Fix TypoAndrew F. Davis2017-03-241-1/+1
| | | | | | | | | | Signed-off-by: Andrew F. Davis <afd@ti.com> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
* | net: phy: Allow BCM5481x PHYs to setup internal TX/RX clock delayAbhishek Shah2017-04-301-36/+33
| | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch allows users to enable/disable internal TX and/or RX clock delay for BCM5481x series PHYs so as to satisfy RGMII timing specifications. On a particular platform, whether TX and/or RX clock delay is required depends on how PHY connected to the MAC IP. This requirement can be specified through "phy-mode" property in the platform device tree. Signed-off-by: Abhishek Shah <abhishek.shah@broadcom.com> Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/netDavid S. Miller2017-04-262-15/+36
|\ \ | | | | | | | | | Signed-off-by: David S. Miller <davem@davemloft.net>
| * | Revert "phy: micrel: Disable auto negotiation on startup"David S. Miller2017-04-261-11/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This reverts commit 99f81afc139c6edd14d77a91ee91685a414a1c66. It was papering over the real problem, which is fixed by commit f555f34fdc58 ("net: phy: fix auto-negotiation stall due to unavailable interrupt") Signed-off-by: David S. Miller <davem@davemloft.net>
| * | net: phy: fix auto-negotiation stall due to unavailable interruptAlexander Kochetkov2017-04-261-4/+36
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The Ethernet link on an interrupt driven PHY was not coming up if the Ethernet cable was plugged before the Ethernet interface was brought up. The patch trigger PHY state machine to update link state if PHY was requested to do auto-negotiation and auto-negotiation complete flag already set. During power-up cycle the PHY do auto-negotiation, generate interrupt and set auto-negotiation complete flag. Interrupt is handled by PHY state machine but doesn't update link state because PHY is in PHY_READY state. After some time MAC bring up, start and request PHY to do auto-negotiation. If there are no new settings to advertise genphy_config_aneg() doesn't start PHY auto-negotiation. PHY continue to stay in auto-negotiation complete state and doesn't fire interrupt. At the same time PHY state machine expect that PHY started auto-negotiation and is waiting for interrupt from PHY and it won't get it. Fixes: 321beec5047a ("net: phy: Use interrupts when available in NOLINK state") Signed-off-by: Alexander Kochetkov <al.kochet@gmail.com> Cc: stable <stable@vger.kernel.org> # v4.9+ Tested-by: Roger Quadros <rogerq@ti.com> Tested-by: Alexandre Belloni <alexandre.belloni@free-electrons.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | | mdio_bus: Issue GPIO RESET to PHYs.Roger Quadros2017-04-241-0/+47
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Some boards [1] leave the PHYs at an invalid state during system power-up or reset thus causing unreliability issues with the PHY which manifests as PHY not being detected or link not functional. To fix this, these PHYs need to be RESET via a GPIO connected to the PHY's RESET pin. Some boards have a single GPIO controlling the PHY RESET pin of all PHYs on the bus whereas some others have separate GPIOs controlling individual PHY RESETs. In both cases, the RESET de-assertion cannot be done in the PHY driver as the PHY will not probe till its reset is de-asserted. So do the RESET de-assertion in the MDIO bus driver. [1] - am572x-idk, am571x-idk, a437x-idk Signed-off-by: Roger Quadros <rogerq@ti.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | | Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/netDavid S. Miller2017-04-211-2/+0
|\| | | | | | | | | | | | | | | | | | | | | | | | | | Both conflict were simple overlapping changes. In the kaweth case, Eric Dumazet's skb_cow() bug fix overlapped the conversion of the driver in net-next to use in-netdev stats. Signed-off-by: David S. Miller <davem@davemloft.net>
| * | dp83640: don't recieve time stamps twiceDan Carpenter2017-04-201-2/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch is prompted by a static checker warning about a potential use after free. The concern is that netif_rx_ni() can free "skb" and we call it twice. When I look at the commit that added this, it looks like some stray lines were added accidentally. It doesn't make sense to me that we would recieve the same data two times. I asked the author but never recieved a response. I can't test this code, but I'm pretty sure my patch is correct. Fixes: 4b063258ab93 ("dp83640: Delay scheduled work.") Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Acked-by: Stefan Sørensen <stefan.sorensen@spectralink.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | | Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/netDavid S. Miller2017-04-201-15/+2
|\| | | | | | | | | | | | | | | | | | | | A function in kernel/bpf/syscall.c which got a bug fix in 'net' was moved to kernel/bpf/verifier.c in 'net-next'. Signed-off-by: David S. Miller <davem@davemloft.net>
| * | net: phy: micrel: fix crash when statistic requested for KSZ9031 phyGrygorii Strashko2017-04-171-15/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Now the command: ethtool --phy-statistics eth0 will cause system crash with meassage "Unable to handle kernel NULL pointer dereference at virtual address 00000010" from: (kszphy_get_stats) from [<c069f1d8>] (ethtool_get_phy_stats+0xd8/0x210) (ethtool_get_phy_stats) from [<c06a0738>] (dev_ethtool+0x5b8/0x228c) (dev_ethtool) from [<c06b5484>] (dev_ioctl+0x3fc/0x964) (dev_ioctl) from [<c0679f7c>] (sock_ioctl+0x170/0x2c0) (sock_ioctl) from [<c02419d4>] (do_vfs_ioctl+0xa8/0x95c) (do_vfs_ioctl) from [<c02422c4>] (SyS_ioctl+0x3c/0x64) (SyS_ioctl) from [<c0107d60>] (ret_fast_syscall+0x0/0x44) The reason: phy_driver structure for KSZ9031 phy has no .probe() callback defined. As result, struct phy_device *phydev->priv pointer will not be initializes (null). This issue will affect also following phys: KSZ8795, KSZ886X, KSZ8873MLL, KSZ9031, KSZ9021, KSZ8061, KS8737 Fix it by: - adding .probe() = kszphy_probe() callback to KSZ9031, KSZ9021 phys. The kszphy_probe() can be re-used as it doesn't do any phy specific settings. - removing statistic callbacks from other phys (KSZ8795, KSZ886X, KSZ8873MLL, KSZ8061, KS8737) as they doesn't have corresponding statistic counters. Fixes: 2b2427d06426 ("phy: micrel: Add ethtool statistics counters") Signed-off-by: Grygorii Strashko <grygorii.strashko@ti.com> Reviewed-by: Andrew Lunn <andrew@lunn.ch> Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | | net: phy: test the right variable in phy_write_mmd()Dan Carpenter2017-04-171-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This is a copy and paste buglet. We meant to test for ->write_mmd but we test for ->read_mmd. Fixes: 1ee6b9bc6206 ("net: phy: make phy_(read|write)_mmd() generic MMD accessors") Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Reviewed-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
* | | net: phy: simplify phy_supported_speeds()Russell King2017-04-171-10/+4
| | | | | | | | | | | | | | | | | | | | | Simplify the loop in phy_supported_speeds(). Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk> Signed-off-by: David S. Miller <davem@davemloft.net>
* | | net: phy: improve phylib correctness for non-autoneg settingsRussell King2017-04-171-43/+66
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | phylib has some undesirable behaviour when forcing a link mode through ethtool. phylib uses this code: idx = phy_find_valid(phy_find_setting(phydev->speed, phydev->duplex), features); to find an index in the settings table. phy_find_setting() starts at index 0, and scans upwards looking for an exact speed and duplex match. When it doesn't find it, it returns MAX_NUM_SETTINGS - 1, which is 10baseT-Half duplex. phy_find_valid() then scans from the point (and effectively only checks one entry) before bailing out, returning MAX_NUM_SETTINGS - 1. phy_sanitize_settings() then sets ->speed to SPEED_10 and ->duplex to DUPLEX_HALF whether or not 10baseT-Half is supported or not. This goes against all the comments against these functions, and 10baseT-Half may not even be supported by the hardware. Rework these functions, introducing a new method of scanning the table. There are two modes of lookup that phylib wants: exact, and inexact. - in exact mode, we return either an exact match or failure - in inexact mode, we return an exact match if it exists, a match at the highest speed that is not greater than the requested speed (ignoring duplex), or failing that, the lowest supported speed, or failure. The biggest difference is that we always check whether the entry is supported before further consideration, so all unsupported entries are not considered as candidates. This results in arguably saner behaviour, better matches the comments, and is probably what users would expect. This becomes important as ethernet speeds increase, PHYs exist which do not support the 10Mbit speeds, and half-duplex is likely to become obsolete - it's already not even an option on 10Gbit and faster links. Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk> Signed-off-by: David S. Miller <davem@davemloft.net>
* | | Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/netDavid S. Miller2017-04-061-1/+1
|\| | | | | | | | | | | | | | | | | | | | Mostly simple cases of overlapping changes (adding code nearby, a function whose name changes, for example). Signed-off-by: David S. Miller <davem@davemloft.net>
| * | net: phy: handle state correctly in phy_stop_machineNathan Sullivan2017-03-241-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | If the PHY is halted on stop, then do not set the state to PHY_UP. This ensures the phy will be restarted later in phy_start when the machine is started again. Fixes: 00db8189d984 ("This patch adds a PHY Abstraction Layer to the Linux Kernel, enabling ethernet drivers to remain as ignorant as is reasonable of the connected PHY's design and operation details.") Signed-off-by: Nathan Sullivan <nathan.sullivan@ni.com> Signed-off-by: Brad Mouring <brad.mouring@ni.com> Acked-by: Xander Huff <xander.huff@ni.com> Acked-by: Kyle Roeschley <kyle.roeschley@ni.com> Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
| * | net: phy: Export mdiobus_register_board_info()Florian Fainelli2017-03-231-0/+1
| |/ | | | | | | | | | | | | | | | | | | We can build modular code that uses mdiobus_register_board_info() which would lead to linking failure since this symbol is not expoerted. Fixes: 648ea0134069 ("net: phy: Allow pre-declaration of MDIO devices") Signed-off-by: Florian Fainelli <f.fainelli@gmail.com> Reviewed-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
* | phy/ethtool: Add missing SPEED_<foo> stringsJoe Perches2017-04-051-0/+14
| | | | | | | | | | | | | | Add all the currently available SPEED_<foo> strings. Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | net: phy: allow EEE with any interface modeRussell King2017-04-011-8/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | EEE is able to work in any PHY interface mode, there is nothing which fundamentally restricts it to only a few modes. For example, EEE works in SGMII mode with the Marvell 88E1512. Rather than just adding SGMII mode to the list, Florian suggests removing the list of interface modes entirely: It actually sounds like we should just kill the check entirely, it does not appear that any of the interface mode would not fundamentally be able to support EEE, because the "lowest" mode we support is MII, and even there it's quite possible to support EEE. Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk> Signed-off-by: David S. Miller <davem@davemloft.net>
* | net: phy: restart phy autonegotiation after EEE advertisment changeRussell King2017-04-011-2/+19
| | | | | | | | | | | | | | | | | | | | When the EEE advertisment is changed, we should restart autonegotiation to update the link partner with the new EEE settings. Add this trigger but only if the advertisment has changed. Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk> Signed-off-by: David S. Miller <davem@davemloft.net>
* | net: phy: avoid setting unsupported EEE advertismentsRussell King2017-04-011-5/+10
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | We currently allow userspace to set any EEE advertisments it desires, whether or not the PHY supports them. For example: # ethtool --set-eee eth1 advertise 0xffffffff # ethtool --show-eee eth1 EEE Settings for eth1: EEE status: disabled Tx LPI: disabled Supported EEE link modes: 100baseT/Full 1000baseT/Full 10000baseT/Full Advertised EEE link modes: 100baseT/Full 1000baseT/Full 1000baseKX/Full 10000baseT/Full 10000baseKX4/Full 10000baseKR/Full Clearly, this is not sane, we should only allow link modes that are supported to be advertised (as we do elsewhere.) Ensure that we mask the MDIO_AN_EEE_ADV value with the capabilities retrieved from the MDIO_PCS_EEE_ABLE register. Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk> Signed-off-by: David S. Miller <davem@davemloft.net>
* | net: phy: Allow building mdio-boardinfo into the kernelFlorian Fainelli2017-03-294-17/+47
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | mdio-boardinfo contains code that is helpful for platforms to register specific MDIO bus devices independent of how CONFIG_MDIO_DEVICE or CONFIG_PHYLIB will be selected (modular or built-in). In order to make that possible, let's do the following: - descend into drivers/net/phy/ unconditionally - make mdiobus_setup_mdiodev_from_board_info() take a callback argument which allows us not to expose the internal MDIO board info list and mutex, yet maintain the logic within the same file - relocate the code that creates a MDIO device into drivers/net/phy/mdio_bus.c - build mdio-boardinfo.o into the kernel as soon as MDIO_DEVICE is defined (y or m) Fixes: 90eff9096c01 ("net: phy: Allow splitting MDIO bus/device support from PHYs") Fixes: 648ea0134069 ("net: phy: Allow pre-declaration of MDIO devices") Signed-off-by: Florian Fainelli <f.fainelli@gmail.com> Tested-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: David S. Miller <davem@davemloft.net>
* | net: break include loop netdevice.h, dsa.h, devlink.hAndrew Lunn2017-03-281-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | There is an include loop between netdevice.h, dsa.h, devlink.h because of NETDEV_ALIGN, making it impossible to use devlink structures in dsa.h. Break this loop by taking dsa.h out of netdevice.h, add a forward declaration of dsa_switch_tree and netdev_set_default_ethtool_ops() function, which is what netdevice.h requires. No longer having dsa.h in netdevice.h means the includes in dsa.h no longer get included. This breaks a few other files which depend on these includes. Add these directly in the affected file. Signed-off-by: Andrew Lunn <andrew@lunn.ch> Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | net: phy: Allow splitting MDIO bus/device support from PHYsFlorian Fainelli2017-03-244-27/+56
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Introduce a new configuration symbol: MDIO_DEVICE which allows building the MDIO devices and bus code, without pulling in the entire Ethernet PHY library and devices code. PHYLIB nows select MDIO_DEVICE and the relevant Makefile files are updated to reflect that. When MDIO_DEVICE (MDIO bus/device only) is selected, but not PHYLIB, we have mdio-bus.ko as a loadable module, and it does not have a module_exit() function because the safety of removing a bus class is unclear. When both MDIO_DEVICE and PHYLIB are enabled, we need to assemble everything into a common loadable module: libphy.ko because of nasty circular dependencies between phy.c, phy_device.c and mdio_bus.c which are really tough to untangle. Signed-off-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | net: phy: MDIO_BCM_UNIMAC should depend on OF_MDIOFlorian Fainelli2017-03-241-1/+1
| | | | | | | | | | | | | | | | The Broadcom MDIO UniMAC driver uses routines provided by of_mdio.c which is guarded by CONFIG_OF_MDIO. Signed-off-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | net: phy: clean up mmd_phy_indirect()Russell King2017-03-221-7/+7
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Make mmd_phy_indirect() use the same terminology as the rest of the code, making clear what each address is - phy address, devad, and register number. While here, remove the "inline" from this static function, leaving it to the compiler to decide whether to inline this function, and get rid of unnecessary parens. Reviewed-by: Andrew Lunn <andrew@lunn.ch> Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk> Signed-off-by: David S. Miller <davem@davemloft.net>
* | net: phy: remove the indirect MMD read/write methodsRussell King2017-03-221-85/+34
| | | | | | | | | | | | | | | | | | | | Remove the indirect MMD read/write methods which are now no longer necessary. Reviewed-by: Andrew Lunn <andrew@lunn.ch> Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk> Signed-off-by: David S. Miller <davem@davemloft.net>
* | net: phy: convert micrel to new read_mmd/write_mmd driver methodsRussell King2017-03-221-7/+6
| | | | | | | | | | | | | | | | | | | | Convert micrel to the new read_mmd/write_mmd driver methods. This Clause 22 PHY does not support any MMD access method. Reviewed-by: Andrew Lunn <andrew@lunn.ch> Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk> Signed-off-by: David S. Miller <davem@davemloft.net>
* | net: phy: switch remaining users to phy_(read|write)_mmd()Russell King2017-03-226-55/+42
| | | | | | | | | | | | | | | | | | | | | | Switch everyone over to using phy_read_mmd() and phy_write_mmd() now that they are able to handle both Clause 22 indirect addressing and Clause 45 direct addressing methods to the MMD registers. Reviewed-by: Andrew Lunn <andrew@lunn.ch> Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk> Signed-off-by: David S. Miller <davem@davemloft.net>
* | net: phy: make phy_(read|write)_mmd() generic MMD accessorsRussell King2017-03-221-8/+25
| | | | | | | | | | | | | | | | | | | | | | | | Make phy_(read|write)_mmd() generic 802.3 clause 45 register accessors for both Clause 22 and Clause 45 PHYs, using either the direct register reading for Clause 45, or the indirect method for Clause 22 PHYs. Allow this behaviour to be overriden by PHY drivers where necessary. Reviewed-by: Andrew Lunn <andrew@lunn.ch> Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk> Signed-off-by: David S. Miller <davem@davemloft.net>
* | net: phy: move phy MMD accessors to phy-core.cRussell King2017-03-223-86/+136
| | | | | | | | | | | | | | | | | | | | | | | | Move the phy_(read|write)__mmd() helpers out of line, they will become our main MMD accessor functions, and so will be a little more complex. This complexity doesn't belong in an inline function. Also move the _indirect variants as well to keep like functionality together. Reviewed-by: Andrew Lunn <andrew@lunn.ch> Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk> Signed-off-by: David S. Miller <davem@davemloft.net>
* | drivers: net: phy: xgene: Fix mdio writeQuan Nguyen2017-03-151-1/+1
| | | | | | | | | | | | | | | | This patches fixes a typo in the argument to xgene_enet_wr_mdio_csr(). Signed-off-by: Quan Nguyen <qnguyen@apm.com> Signed-off-by: Iyappan Subramanian <isubramanian@apm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/netDavid S. Miller2017-03-152-16/+2
|\| | | | | | | | | | | | | | | | | | | | | Conflicts: drivers/net/ethernet/broadcom/genet/bcmgenet.c net/core/sock.c Conflicts were overlapping changes in bcmgenet and the lockdep handling of sockets. Signed-off-by: David S. Miller <davem@davemloft.net>
| * net: phy: marvell: Fix double free of hwmon deviceAndrew Lunn2017-03-091-15/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The hwmon temperature sensor devices is registered using a devm_hwmon API call. The marvell_release() would then manually free the device, not using a devm_hmon API, resulting in the device being removed twice, leading to a crash in kernfs_find_ns() during the second removal. Remove the manual removal, which makes marvell_release() empty, so remove it as well. Signed-off-by: Andrew Lunn <andrew@lunn.ch> Fixes: 0b04680fdae4 ("phy: marvell: Add support for temperature sensor") Acked-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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