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2020-05-14net: netsec: Add support for XDP frame sizeIlias Apalodimas
This driver takes advantage of page_pool PP_FLAG_DMA_SYNC_DEV that can help reduce the number of cache-lines that need to be flushed when doing DMA sync for_device. Due to xdp_adjust_tail can grow the area accessible to the by the CPU (can possibly write into), then max sync length *after* bpf_prog_run_xdp() needs to be taken into account. For XDP_TX action the driver is smart and does DMA-sync. When growing tail this is still safe, because page_pool have DMA-mapped the entire page size. Signed-off-by: Ilias Apalodimas <ilias.apalodimas@linaro.org> Signed-off-by: Jesper Dangaard Brouer <brouer@redhat.com> Signed-off-by: Alexei Starovoitov <ast@kernel.org> Acked-by: Lorenzo Bianconi <lorenzo@kernel.org> Link: https://lore.kernel.org/bpf/158945336295.97035.15034759661036971024.stgit@firesoul
2020-05-14mvneta: Add XDP frame size to driverJesper Dangaard Brouer
This marvell driver mvneta uses PAGE_SIZE frames, which makes it really easy to convert. Driver updates rxq and now frame_sz once per NAPI call. This driver takes advantage of page_pool PP_FLAG_DMA_SYNC_DEV that can help reduce the number of cache-lines that need to be flushed when doing DMA sync for_device. Due to xdp_adjust_tail can grow the area accessible to the by the CPU (can possibly write into), then max sync length *after* bpf_prog_run_xdp() needs to be taken into account. For XDP_TX action the driver is smart and does DMA-sync. When growing tail this is still safe, because page_pool have DMA-mapped the entire page size. Signed-off-by: Jesper Dangaard Brouer <brouer@redhat.com> Signed-off-by: Alexei Starovoitov <ast@kernel.org> Acked-by: Lorenzo Bianconi <lorenzo@kernel.org> Cc: thomas.petazzoni@bootlin.com Link: https://lore.kernel.org/bpf/158945335786.97035.12714388304493736747.stgit@firesoul
2020-05-14sfc: Add XDP frame sizeJesper Dangaard Brouer
This driver uses RX page-split when possible. It was recently fixed in commit 86e85bf6981c ("sfc: fix XDP-redirect in this driver") to add needed tailroom for XDP-redirect. After the fix efx->rx_page_buf_step is the frame size, with enough head and tail-room for XDP-redirect. Signed-off-by: Jesper Dangaard Brouer <brouer@redhat.com> Signed-off-by: Alexei Starovoitov <ast@kernel.org> Link: https://lore.kernel.org/bpf/158945335278.97035.14611425333184621652.stgit@firesoul
2020-05-14bnxt: Add XDP frame size to driverJesper Dangaard Brouer
This driver uses full PAGE_SIZE pages when XDP is enabled. In case of XDP uses driver uses __bnxt_alloc_rx_page which does full page DMA-map. Thus, xdp_adjust_tail grow is DMA compliant for XDP_TX action that does DMA-sync. Signed-off-by: Jesper Dangaard Brouer <brouer@redhat.com> Signed-off-by: Alexei Starovoitov <ast@kernel.org> Reviewed-by: Andy Gospodarek <gospo@broadcom.com> Cc: Michael Chan <michael.chan@broadcom.com> Cc: Andy Gospodarek <andrew.gospodarek@broadcom.com> Link: https://lore.kernel.org/bpf/158945334769.97035.13437970179897613984.stgit@firesoul
2020-05-15Merge tag 'drm-intel-fixes-2020-05-13-1' of ↵Dave Airlie
git://anongit.freedesktop.org/drm/drm-intel into drm-fixes - Handle idling during i915_gem_evict_something busy loops (Chris) - Mark current submissions with a weak-dependency (Chris) - Propagate errror from completed fences (Chris) - Fixes on execlist to avoid GPU hang situation (Chris) - Fixes couple deadlocks (Chris) - Timeslice preemption fixes (Chris) - Fix Display Port interrupt handling on Tiger Lake (Imre) - Reduce debug noise around Frame Buffer Compression +(Peter) - Fix logic around IPC W/a for Coffee Lake and Kaby Lake +(Sultan) - Avoid dereferencing a dead context (Chris) Signed-off-by: Dave Airlie <airlied@redhat.com> From: Rodrigo Vivi <rodrigo.vivi@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20200514040235.GA2164266@intel.com
2020-05-14r8169: don't include linux/moduleparam.hHeiner Kallweit
93882c6f210a ("r8169: switch from netif_xxx message functions to netdev_xxx") removed the last module parameter from the driver, therefore there's no need any longer to include linux/moduleparam.h. Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-05-14r8169: remove not needed checks in rtl8169_set_eeeHeiner Kallweit
After 9de5d235b60a ("net: phy: fix aneg restart in phy_ethtool_set_eee") we don't need the check for aneg being enabled any longer, and as discussed with Russell configuring the EEE advertisement should be supported even if we're in a half-duplex mode currently. Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-05-14net: dsa: felix: fix incorrect clamp calculation for burstColin Ian King
Currently burst is clamping on rate and not burst, the assignment of burst from the clamping discards the previous assignment of burst. This looks like a cut-n-paste error from the previous clamping calculation on ramp. Fix this by replacing ramp with burst. Addresses-Coverity: ("Unused value") Fixes: 0fbabf875d18 ("net: dsa: felix: add support Credit Based Shaper(CBS) for hardware offload") Signed-off-by: Colin Ian King <colin.king@canonical.com> Acked-by: Vladimir Oltean <vladimir.oltean@nxp.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-05-14net: phy: mdio-moxart: remove unneeded includeBartosz Golaszewski
mdio-moxart doesn't use regulators in the driver code. We can remove the regulator include. Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.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>
2020-05-14drivers: net: hamradio: Fix suspicious RCU usage warning in bpqether.cMadhuparna Bhowmik
This patch fixes the following warning: ============================= WARNING: suspicious RCU usage 5.7.0-rc5-next-20200514-syzkaller #0 Not tainted ----------------------------- drivers/net/hamradio/bpqether.c:149 RCU-list traversed in non-reader section!! Since rtnl lock is held, pass this cond in list_for_each_entry_rcu(). Reported-by: syzbot+bb82cafc737c002d11ca@syzkaller.appspotmail.com Signed-off-by: Madhuparna Bhowmik <madhuparnabhowmik10@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-05-14net: phy: broadcom: fix BCM54XX_SHD_SCR3_TRDDAPD value for BCM54810Kevin Lo
Set the correct bit when checking for PHY_BRCM_DIS_TXCRXC_NOENRGY on the BCM54810 PHY. Fixes: 0ececcfc9267 ("net: phy: broadcom: Allow BCM54810 to use bcm54xx_adjust_rxrefclk()") Signed-off-by: Kevin Lo <kevlo@kevlo.org> Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-05-14hinic: add set_ringparam ethtool_ops supportLuo bin
support to change TX/RX queue depth with ethtool -G Signed-off-by: Luo bin <luobin9@huawei.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-05-14ethernet: ti: am65-cpsw-qos: add TAPRIO offload supportIvan Khoronzhuk
AM65 CPSW h/w supports Enhanced Scheduled Traffic (EST – defined in P802.1Qbv/D2.2 that later got included in IEEE 802.1Q-2018) configuration. EST allows express queue traffic to be scheduled (placed) on the wire at specific repeatable time intervals. In Linux kernel, EST configuration is done through tc command and the taprio scheduler in the net core implements a software only scheduler (SCH_TAPRIO). If the NIC is capable of EST configuration, user indicate "flag 2" in the command which is then parsed by taprio scheduler in net core and indicate that the command is to be offloaded to h/w. taprio then offloads the command to the driver by calling ndo_setup_tc() ndo ops. This patch implements ndo_setup_tc() to offload EST configuration to CPSW h/w. Currently driver supports only SetGateStates operation. EST operates on a repeating time interval generated by the CPTS EST function generator. Each Ethernet port has a global EST fetch RAM that can be configured as 2 buffers, each of 64 locations or one large buffer of 128 locations. In 2 buffer configuration, a ping pong mechanism is used to hold the active schedule (oper) in one buffer and new (admin) command in the other. Each 22-bit fetch command consists of a 14-bit fetch count (14 MSB’s) and an 8-bit priority fetch allow (8 LSB’s) that will be applied for the fetch count time in wireside clocks. Driver process each of the sched-entry in the offload command and update the fetch RAM. Driver configures duration in sched-entry into the fetch count and Gate mask into the priority fetch bits of the RAM. Then configures the CPTS EST function generator to activate the schedule. Currently driver supports only 2 buffer configuration which means driver supports a max cycle time of ~8 msec. CPSW supports a configurable number of priority queues (up to 8) and needs to be switched to this mode from the default round robin mode before EST can be offloaded. User configures these through ethtool commands (-L for changing number of queues and --set-priv-flags to disable round robin mode). Driver doesn't enable EST if pf_p0_rx_ptype_rrobin privat flag is set. The flag is common for all ports, and so can't be just overridden by taprio configuration w/o user involvement. Command fails if pf_p0_rx_ptype_rrobin is already set in the driver. Scheds (commands) configuration depends on interface speed so driver translates the duration to the fetch count based on link speed. Each schedule can be constructed with several command entries in fetch RAM depending on interval. For example if each sched has timer interval < ~130us on 1000 Mb link then each sched consumes one command and have 1:1 mapping. When Ethernet link goes down, driver purge the configuration if link is down for more than 1 second. The patch allows to update the timer and scheds memory only if it's really needed, and skip cases required the user to stop timer by configuring only shceds memory. Signed-off-by: Ivan Khoronzhuk <ivan.khoronzhuk@linaro.org> Signed-off-by: Murali Karicheri <m-karicheri2@ti.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-05-14ethernet: ti: am65-cpts: add routines to support taprio offloadIvan Khoronzhuk
TAPRIO/EST offload support in CPSW2G requires EST scheduler function enabled in CPTS. So this patch add a function to set cycle time for EST scheduler. It also add a function for getting time in ns of PHC clock for taprio qdisc configuration. Mostly to verify if timer update is needed or to get actual state of oper/admin schedule. Signed-off-by: Ivan Khoronzhuk <ivan.khoronzhuk@linaro.org> Signed-off-by: Murali Karicheri <m-karicheri2@ti.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-05-14net: qed: introduce critical hardware error handlerIgor Russkikh
MCP may signal driver about generic critical failure. Driver has to collect mdump information (get_retain), it pushes that to logs and triggers generic notification on "hardware attention" event. Signed-off-by: Ariel Elior <ariel.elior@marvell.com> Signed-off-by: Michal Kalderon <michal.kalderon@marvell.com> Signed-off-by: Igor Russkikh <irusskikh@marvell.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-05-14net: qed: introduce critical fan failure handlerIgor Russkikh
Fan failure is sent by firmware, driver reacts on this error with newly introduced notification path. It will collect dump and shut down the device to prevent physical breakage Signed-off-by: Ariel Elior <ariel.elior@marvell.com> Signed-off-by: Michal Kalderon <michal.kalderon@marvell.com> Signed-off-by: Igor Russkikh <irusskikh@marvell.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-05-14net: qede: Implement ndo_tx_timeoutDenis Bolotin
Upon tx timeout detection we do disable carrier and print TX queue info on TX timeout. We then raise hw error condition and trigger service task to handle this. This handler will capture extra debug info and then optionally trigger recovery procedure to try restore function. Signed-off-by: Denis Bolotin <dbolotin@marvell.com> Signed-off-by: Ariel Elior <aelior@marvell.com> Signed-off-by: Igor Russkikh <irusskikh@marvell.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-05-14net: qede: optional hw recovery procedureIgor Russkikh
Driver has an ability to initiate a recovery process as a reaction to detected errors. But the codepath (recovery_process) was disabled and never active. Here we add ethtool private flag to allow user have the recovery procedure activated. We still do not enable this by default though, since in some configurations this is not desirable. E.g. this may impact other PFs/VFs. Signed-off-by: Ariel Elior <ariel.elior@marvell.com> Signed-off-by: Michal Kalderon <michal.kalderon@marvell.com> Signed-off-by: Igor Russkikh <irusskikh@marvell.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-05-14net: qed: attention clearing propertiesIgor Russkikh
On different hardware events we have to respond differently, on some of hardware indications hw attention (error condition) should be cleared by the driver to continue normal functioning. Here we introduce attention clear flags, and put them on some important events (in aeu_descs). Signed-off-by: Ariel Elior <ariel.elior@marvell.com> Signed-off-by: Michal Kalderon <michal.kalderon@marvell.com> Signed-off-by: Igor Russkikh <irusskikh@marvell.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-05-14net: qed: cleanup debug related declarationsIgor Russkikh
Thats probably a legacy code had double declaration of some fields. Cleanup this, removing copy and fixing references. Signed-off-by: Ariel Elior <ariel.elior@marvell.com> Signed-off-by: Michal Kalderon <michal.kalderon@marvell.com> Signed-off-by: Igor Russkikh <irusskikh@marvell.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-05-14net: qed: critical err reporting to management firmwareIgor Russkikh
On various critical errors, notification handler should also report the err information into the management firmware. MFW can interact with server/motherboard backend agents - these are used by server manufacturers to monitor server HW health. Thus, it is important for driver to report on any faulty conditions Signed-off-by: Ariel Elior <ariel.elior@marvell.com> Signed-off-by: Michal Kalderon <michal.kalderon@marvell.com> Signed-off-by: Igor Russkikh <irusskikh@marvell.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-05-14net: qed: invoke err notify on critical areasIgor Russkikh
In a number of critical places not only debug trace should be printed, but the appropriate hw error condition should be raised and error handling/recovery should start. Introduce our new qed_hw_err_notify invocation in these places to record and indicate critical error conditions in hardware. Signed-off-by: Ariel Elior <ariel.elior@marvell.com> Signed-off-by: Michal Kalderon <michal.kalderon@marvell.com> Signed-off-by: Igor Russkikh <irusskikh@marvell.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-05-14net: qede: add hw err scheduled handlerIgor Russkikh
qede (ethernet level driver) registers a callback handler. This handler maintains eth dev state flags/bits to track error processing. It implements in place processing part for nonsleeping context (WARN_ON trigger), and a deferred (delayed work) part which triggers recovery process for recoverable errors. In later patches this atomic handler will come with more meat. We introduce err_flags on ethdevice structure, its being used to record error handling properties. Signed-off-by: Ariel Elior <ariel.elior@marvell.com> Signed-off-by: Michal Kalderon <michal.kalderon@marvell.com> Signed-off-by: Igor Russkikh <irusskikh@marvell.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-05-14net: qed: adding hw_err states and handlingIgor Russkikh
Here we introduce qed device error tracking flags and error types. qed_hw_err_notify is an entrace point to report errors. It'll notify higher level drivers (qede/qedr/etc) to handle and recover the error. List of posible errors comes from hardware interfaces, but could be extended in future. Signed-off-by: Ariel Elior <ariel.elior@marvell.com> Signed-off-by: Michal Kalderon <michal.kalderon@marvell.com> Signed-off-by: Igor Russkikh <irusskikh@marvell.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-05-14Merge tag 'mmc-v5.7-rc4' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/mmc Pull MMC fixes from Ulf Hansson: "MMC core: - Fix a couple of quite severe issues for the CQE request path MMC host: - alcor: Fix a resource leak in the error path for ->probe() - sdhci-acpi: Fix the DMA support for the AMD eMMC v5.0 variant - sdhci-pci-gli: Fix system resume support for GL975x - sdhci-pci-gli: Fix reboot error for GL9750" * tag 'mmc-v5.7-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/mmc: mmc: sdhci-acpi: Add SDHCI_QUIRK2_BROKEN_64_BIT_DMA for AMDI0040 mmc: block: Fix request completion in the CQE timeout path mmc: core: Fix recursive locking issue in CQE recovery path mmc: core: Check request type before completing the request mmc: sdhci-pci-gli: Fix can not access GL9750 after reboot from Windows 10 mmc: alcor: Fix a resource leak in the error path for ->probe() mmc: sdhci-pci-gli: Fix no irq handler from suspend
2020-05-14net: hns3: remove unnecessary frag list checking in hns3_nic_net_xmit()Huazhong Tan
The skb_has_frag_list() in hns3_nic_net_xmit() is redundant, since skb_walk_frags() includes this checking implicitly. Reported-by: Yunsheng Lin <linyunsheng@huawei.com> Signed-off-by: Huazhong Tan <tanhuazhong@huawei.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-05-14net: hns3: remove some unused macrosHuazhong Tan
There are some macros defined in hns3_enet.h, but not used in anywhere. Reported-by: Yonglong Liu <liuyonglong@huawei.com> Signed-off-by: Huazhong Tan <tanhuazhong@huawei.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-05-14net: hns3: modify an incorrect error log in hclge_mbx_handler()Huazhong Tan
When handling HCLGE_MBX_GET_LINK_STATUS, PF will return the link status to the VF, so the error log of hclge_get_link_info() is incorrect. Reported-by: Jian Shen <shenjian15@huawei.com> Signed-off-by: Huazhong Tan <tanhuazhong@huawei.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-05-14net: hns3: remove a duplicated printing in hclge_configure()Huazhong Tan
Since hclge_get_cfg() already has error print, so hclge_configure() should not print error when calling hclge_get_cfg() fail. Reported-by: Guangbin Huang <huangguangbin2@huawei.com> Signed-off-by: Huazhong Tan <tanhuazhong@huawei.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-05-14net: hns3: modify some incorrect spellingHuazhong Tan
This patch modifies some incorrect spelling. Reported-by: Jian Shen <shenjian15@huawei.com> Signed-off-by: Huazhong Tan <tanhuazhong@huawei.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-05-14r8152: Use MAC address from device tree if availableThierry Reding
If a MAC address was passed via the device tree node for the r8152 device, use it and fall back to reading from EEPROM otherwise. This is useful for devices where the r8152 EEPROM was not programmed with a valid MAC address, or if users want to explicitly set a MAC address in the bootloader and pass that to the kernel. Signed-off-by: Thierry Reding <treding@nvidia.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-05-14drivers: ipa: fix typos for ipa_smp2p structure docWang Wenhu
Remove the duplicate "mutex", and change "Motex" to "Mutex". Also I recommend it's easier for understanding to make the "ready-interrupt" a bundle for it is a parallel description as "shutdown" which is appended after the slash. Signed-off-by: Wang Wenhu <wenhu.wang@vivo.com> Cc: Alex Elder <elder@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-05-14pppoe: only process PADT targeted at local interfacesGuillaume Nault
We don't want to disconnect a session because of a stray PADT arriving while the interface is in promiscuous mode. Furthermore, multicast and broadcast packets make no sense here, so only PACKET_HOST is accepted. Reported-by: David Balažic <xerces9@gmail.com> Fixes: 1da177e4c3f4 ("Linux-2.6.12-rc2") Signed-off-by: Guillaume Nault <gnault@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-05-14net: stmmac: fix num_por initializationVinod Koul
Driver missed initializing num_por which is one of the por values that driver configures to hardware. In order to get these values, add a new structure ethqos_emac_driver_data which holds por and num_por values and populate that in driver probe. Fixes: a7c30e62d4b8 ("net: stmmac: Add driver for Qualcomm ethqos") Reported-by: Rahul Ankushrao Kawadgave <rahulak@qti.qualcomm.com> Signed-off-by: Vinod Koul <vkoul@kernel.org> Reviewed-by: Amit Kucheria <amit.kucheria@linaro.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-05-14Merge tag 'pm-5.7-rc6' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm Pull power management fix from Rafael Wysocki: "Prevent the suspend-to-idle internal loop from busy spinning after a spurious ACPI SCI wakeup in some cases" * tag 'pm-5.7-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: ACPI: EC: PM: Avoid premature returns from acpi_s2idle_wake()
2020-05-14Merge tag 'amd-drm-fixes-5.7-2020-05-13' of ↵Dave Airlie
git://people.freedesktop.org/~agd5f/linux into drm-fixes amd-drm-fixes-5.7-2020-05-13: amdgpu: - Clockgating fixes - Fix fbdev with scatter/gather display - S4 fix for navi - Soft recovery for gfx10 - Freesync fixes - Atomic check cursor fix - Add a gfxoff quirk - MST fix amdkfd: - Fix GEM reference counting Signed-off-by: Dave Airlie <airlied@redhat.com> From: Alex Deucher <alexdeucher@gmail.com> Link: https://patchwork.freedesktop.org/patch/msgid/20200514034046.3988-1-alexander.deucher@amd.com
2020-05-14Merge tag 'drm/tegra/for-5.7-fixes' of ↵Dave Airlie
git://anongit.freedesktop.org/tegra/linux into drm-fixes drm/tegra: Fixes for v5.7 This contains a pair of patches which fix SMMU support on Tegra124 and Tegra210 for host1x and the Tegra DRM driver. Signed-off-by: Dave Airlie <airlied@redhat.com> From: Thierry Reding <thierry.reding@gmail.com> Link: https://patchwork.freedesktop.org/patch/msgid/20200508101355.3031268-1-thierry.reding@gmail.com
2020-05-14Merge tag 'drm-intel-fixes-2020-05-07' of ↵Dave Airlie
git://anongit.freedesktop.org/drm/drm-intel into drm-fixes - Fixes on execlist to avoid GPU hang situation (Chris) - Fixes couple deadlocks (Chris) - Timeslice preemption fixes (Chris) - Fix Display Port interrupt handling on Tiger Lake (Imre) - Reduce debug noise around Frame Buffer Compression (Peter) - Fix logic around IPC W/a for Coffee Lake and Kaby Lake (Sultan) - Avoid dereferencing a dead context (Chris) Signed-off-by: Dave Airlie <airlied@redhat.com> From: Rodrigo Vivi <rodrigo.vivi@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20200508052437.GA3212215@intel.com
2020-05-13net: dsa: mt7530: set CPU port to fallback modeDENG Qingfang
Currently, setting a bridge's self PVID to other value and deleting the default VID 1 renders untagged ports of that VLAN unable to talk to the CPU port: bridge vlan add dev br0 vid 2 pvid untagged self bridge vlan del dev br0 vid 1 self bridge vlan add dev sw0p0 vid 2 pvid untagged bridge vlan del dev sw0p0 vid 1 # br0 cannot send untagged frames out of sw0p0 anymore That is because the CPU port is set to security mode and its PVID is still 1, and untagged frames are dropped due to VLAN member violation. Set the CPU port to fallback mode so untagged frames can pass through. Fixes: 83163f7dca56 ("net: dsa: mediatek: add VLAN support for MT7530") Signed-off-by: DENG Qingfang <dqfext@gmail.com> Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-05-13net: phy: fix aneg restart in phy_ethtool_set_eeeHeiner Kallweit
phy_restart_aneg() enables aneg in the PHY. That's not what we want if phydev->autoneg is disabled. In this case still update EEE advertisement register, but don't enable aneg and don't trigger an aneg restart. Fixes: f75abeb8338e ("net: phy: restart phy autonegotiation after EEE advertisment change") Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-05-13net: mvneta: speed down the PHY, if WoL used, to save energyDaniel González Cabanelas
Some PHYs connected to this ethernet hardware support the WoL feature. But when WoL is enabled and the machine is powered off, the PHY remains waiting for a magic packet at max speed (i.e. 1Gbps), which is a waste of energy. Slow down the PHY speed before stopping the ethernet if WoL is enabled, and save some energy while the machine is powered off or sleeping. Tested using an Armada 370 based board (LS421DE) equipped with a Marvell 88E1518 PHY. Signed-off-by: Daniel González Cabanelas <dgcbueu@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-05-13sfc: fix dereference of table before it is null checkedColin Ian King
Currently pointer table is being dereferenced on a null check of table->must_restore_filters before it is being null checked, leading to a potential null pointer dereference issue. Fix this by null checking table before dereferencing it when checking for a null table->must_restore_filters. Addresses-Coverity: ("Dereference before null check") Fixes: e4fe938cff04 ("sfc: move 'must restore' flags out of ef10-specific nic_data") Signed-off-by: Colin Ian King <colin.king@canonical.com> Acked-by: Edward Cree <ecree@solarflare.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-05-13drm/i915: Handle idling during i915_gem_evict_something busy loopsChris Wilson
i915_gem_evict_something() is charged with finding a slot within the GTT that we may reuse. Since our goal is not to stall, we first look for a slot that only overlaps idle vma. To this end, on the first pass we move any active vma to the end of the search list. However, we only stopped moving active vma after we see the first active vma twice. If during the search, that first active vma completed, we would not notice and keep on extending the search list. Closes: https://gitlab.freedesktop.org/drm/intel/-/issues/1746 Fixes: 2850748ef876 ("drm/i915: Pull i915_vma_pin under the vm->mutex") Fixes: b1e3177bd1d8 ("drm/i915: Coordinate i915_active with its own mutex") Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Cc: Tvrtko Ursulin <tvrtko.ursulin@intel.com> Cc: <stable@vger.kernel.org> # v5.5+ Reviewed-by: Mika Kuoppala <mika.kuoppala@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20200509115217.26853-1-chris@chris-wilson.co.uk (cherry picked from commit 73e28cc40bf00b5d168cb8f5cff1ae63e9097446) Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
2020-05-13net: phy: at803x: add cable diagnostics supportMichael Walle
The AR8031/AR8033 and the AR8035 support cable diagnostics. Adding driver support is straightforward, so lets add it. The PHY just do one pair at a time, so we have to start the test four times. The cable_test_get_status() can block and therefore we can just busy poll the test completion and continue with the next pair until we are done. The time delta counter seems to run at 125MHz which just gives us a resolution of about 82.4cm per tick. 100m cable, A/B/C/D open: Cable test started for device eth0. Cable test completed for device eth0. Pair: Pair A, result: Open Circuit Pair: Pair A, fault length: 107.94m Pair: Pair B, result: Open Circuit Pair: Pair B, fault length: 104.64m Pair: Pair C, result: Open Circuit Pair: Pair C, fault length: 105.47m Pair: Pair D, result: Open Circuit Pair: Pair D, fault length: 107.94m 1m cable, A/B connected, C shorted, D open: Cable test started for device eth0. Cable test completed for device eth0. Pair: Pair A, result: OK Pair: Pair B, result: OK Pair: Pair C, result: Short within Pair Pair: Pair C, fault length: 0.82m Pair: Pair D, result: Open Circuit Pair: Pair D, fault length: 0.82m Signed-off-by: Michael Walle <michael@walle.cc> Reviewed-by: Andrew Lunn <andrew@lunn.ch> Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-05-13net: phy: bcm54140: add cable diagnostics supportMichael Walle
Use the generic cable tester functions from bcm-phy-lib to add cable tester support. 100m cable, A/B/C/D open: Cable test started for device eth0. Cable test completed for device eth0. Pair: Pair A, result: Open Circuit Pair: Pair B, result: Open Circuit Pair: Pair C, result: Open Circuit Pair: Pair D, result: Open Circuit Pair: Pair A, fault length: 106.60m Pair: Pair B, fault length: 103.32m Pair: Pair C, fault length: 104.96m Pair: Pair D, fault length: 106.60m 1m cable, A/B connected, pair C shorted, D open: Cable test started for device eth0. Cable test completed for device eth0. Pair: Pair A, result: OK Pair: Pair B, result: OK Pair: Pair C, result: Short within Pair Pair: Pair D, result: Open Circuit Pair: Pair C, fault length: 0.82m Pair: Pair D, fault length: 1.64m 1m cable, A/B connected, pair C shorted with D: Cable test started for device eth0. Cable test completed for device eth0. Pair: Pair A, result: OK Pair: Pair B, result: OK Pair: Pair C, result: Short to another pair Pair: Pair D, result: Short to another pair Pair: Pair C, fault length: 1.64m Pair: Pair D, fault length: 1.64m The granularity of the length measurement seems to be 82cm. Signed-off-by: Michael Walle <michael@walle.cc> Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Reviewed-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-05-13net: phy: broadcom: add cable test supportMichael Walle
Most modern broadcom PHYs support ECD (enhanced cable diagnostics). Add support for it in the bcm-phy-lib so they can easily be used in the PHY driver. There are two access methods for ECD: legacy by expansion registers and via the new RDB registers which are exclusive. Provide functions in two variants where the PHY driver can choose from. To keep things simple for now, we just switch the register access to expansion registers in the RDB variant for now. On the flipside, we have to keep a bus lock to prevent any other non-legacy access on the PHY. The results of the intra-pair tests are inconclusive (at least for the BCM54140). Most of the times half the length is reported but sometimes the length is correct. Signed-off-by: Michael Walle <michael@walle.cc> Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Reviewed-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-05-13net: phy: broadcom: add bcm_phy_modify_exp()Michael Walle
Add the convenience function to do a read-modify-write. This has the additional benefit of saving one write to the selection register. Signed-off-by: Michael Walle <michael@walle.cc> Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Reviewed-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-05-13net: phy: broadcom: add exp register access methods without buslockMichael Walle
Add helper to read and write expansion registers without taking the mdio lock. Please note, that this changes the semantics of the read and write. Before there was no lock between selecting the expansion register and the actual read/write. This may lead to access failures if there are parallel accesses. Instead take the bus lock during the whole access cycle. Signed-off-by: Michael Walle <michael@walle.cc> Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Reviewed-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-05-13net: broadcom: Select BROADCOM_PHY for BCMGENETFlorian Fainelli
The GENET controller on the Raspberry Pi 4 (2711) is typically interfaced with an external Broadcom PHY via a RGMII electrical interface. To make sure that delays are properly configured at the PHY side, ensure that we the dedicated Broadcom PHY driver (CONFIG_BROADCOM_PHY) is enabled for this to happen. Fixes: 402482a6a78e ("net: bcmgenet: Clear ID_MODE_DIS in EXT_RGMII_OOB_CTRL when not needed") Reported-by: Marek Szyprowski <m.szyprowski@samsung.com> Signed-off-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-05-13net: phy: tja11xx: add cable-test supportOleksij Rempel
Add initial cable testing support. This PHY needs only 100usec for this test and it is recommended to run it before the link is up. For now, provide at least ethtool support, so it can be tested by more developers. This patch was tested with TJA1102 PHY with following results: - No cable, is detected as open - 1m cable, with no connected other end and detected as open - a 40m cable (out of spec, max lenght should be 15m) is detected as OK. Current patch do not provide polarity test support. This test would indicate not proper wire connection, where "+" wire of main phy is connected to the "-" wire of the link partner. Signed-off-by: Oleksij Rempel <o.rempel@pengutronix.de> Reviewed-by: Andrew Lunn <andrew@lunn.ch> Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>