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path: root/drivers/net/usb/lan78xx.c
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* net: drop the weight argument from netif_napi_addJakub Kicinski2022-09-281-1/+1
| | | | | | | | | | | We tell driver developers to always pass NAPI_POLL_WEIGHT as the weight to netif_napi_add(). This may be confusing to newcomers, drop the weight argument, those who really need to tweak the weight can use netif_napi_add_weight(). Acked-by: Marc Kleine-Budde <mkl@pengutronix.de> # for CAN Link: https://lore.kernel.org/r/20220927132753.750069-1-kuba@kernel.org Signed-off-by: Jakub Kicinski <kuba@kernel.org>
* Merge tag 'usb-5.19-rc1' of ↵Linus Torvalds2022-06-031-2/+2
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb Pull USB / Thunderbolt updates from Greg KH: "Here is the "big" set of USB and Thunderbolt driver changes for 5.18-rc1. For the most part it's been a quiet development cycle for the USB core, but there are the usual "hot spots" of development activity. Included in here are: - Thunderbolt driver updates: - fixes for devices without displayport adapters - lane bonding support and improvements - other minor changes based on device testing - dwc3 gadget driver changes. It seems this driver will never be finished given that the IP core is showing up in zillions of new devices and each implementation decides to do something different with it... - uvc gadget driver updates as more devices start to use and rely on this hardware as well - usb_maxpacket() api changes to remove an unneeded and unused parameter. - usb-serial driver device id updates and small cleanups - typec cleanups and fixes based on device testing - device tree updates for usb properties - lots of other small fixes and driver updates. All of these have been in linux-next for weeks with no reported problems" * tag 'usb-5.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: (154 commits) USB: new quirk for Dell Gen 2 devices usb: dwc3: core: Add error log when core soft reset failed usb: dwc3: gadget: Move null pinter check to proper place usb: hub: Simplify error and success path in port_over_current_notify usb: cdns3: allocate TX FIFO size according to composite EP number usb: dwc3: Fix ep0 handling when getting reset while doing control transfer usb: Probe EHCI, OHCI controllers asynchronously usb: isp1760: Fix out-of-bounds array access xhci: Don't defer primary roothub registration if there is only one roothub USB: serial: option: add Quectel BG95 modem USB: serial: pl2303: fix type detection for odd device xhci: Allow host runtime PM as default for Intel Alder Lake N xHCI xhci: Remove quirk for over 10 year old evaluation hardware xhci: prevent U2 link power state if Intel tier policy prevented U1 xhci: use generic command timer for stop endpoint commands. usb: host: xhci-plat: omit shared hcd if either root hub has no ports usb: host: xhci-plat: prepare operation w/o shared hcd usb: host: xhci-plat: create shared hcd after having added main hcd xhci: prepare for operation w/o shared hcd xhci: factor out parts of xhci_gen_setup() ...
| * net: remove third argument of usb_maxpacket()Vincent Mailhol2022-04-231-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The third argument of usb_maxpacket(): in_out has been deprecated because it could be derived from the second argument (e.g. using usb_pipeout(pipe)). N.B. function usb_maxpacket() was made variadic to accommodate the transition from the old prototype with three arguments to the new one with only two arguments (so that no renaming is needed). The variadic argument is to be removed once all users of usb_maxpacket() get migrated. CC: Oliver Neukum <oliver@neukum.org> CC: David S. Miller <davem@davemloft.net> CC: Jakub Kicinski <kuba@kernel.org> CC: Woojung Huh <woojung.huh@microchip.com> CC: Felix Fietkau <nbd@nbd.name> CC: Lorenzo Bianconi <lorenzo.bianconi83@gmail.com> CC: Ryder Lee <ryder.lee@mediatek.com> CC: Kalle Valo <kvalo@kernel.org> CC: Matthias Brugger <matthias.bgg@gmail.com> CC: Stanislaw Gruszka <stf_xl@wp.pl> CC: Helmut Schaa <helmut.schaa@googlemail.com> Signed-off-by: Vincent Mailhol <mailhol.vincent@wanadoo.fr> Link: https://lore.kernel.org/r/20220317035514.6378-6-mailhol.vincent@wanadoo.fr Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* | net: make drivers set the TSO limit not the GSO limitJakub Kicinski2022-05-061-1/+1
| | | | | | | | | | | | | | | | Drivers should call the TSO setting helper, GSO is controllable by user space. Signed-off-by: Jakub Kicinski <kuba@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
* | usb: lan78xx: remove a copy of the NAPI_POLL_WEIGHT defineJakub Kicinski2022-04-291-3/+1
|/ | | | | | | | Defining local versions of NAPI_POLL_WEIGHT with the same values in the drivers just makes refactoring harder. Signed-off-by: Jakub Kicinski <kuba@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
* net: usb: lan78xx: Use generic_handle_irq_safe().Sebastian Andrzej Siewior2022-03-021-5/+2
| | | | | | | | | | | | | | | Instead of manually disabling interrupts before invoking use generic_handle_irq_safe() which can be invoked with enabled and disabled interrupts. Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: Woojung Huh <woojung.huh@microchip.com> Cc: "David S. Miller" <davem@davemloft.net> Cc: Jakub Kicinski <kuba@kernel.org> Cc: UNGLinuxDriver@microchip.com Link: https://lore.kernel.org/r/20220211181500.1856198-7-bigeasy@linutronix.de
* Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/netJakub Kicinski2021-12-161-0/+6
|\ | | | | | | | | | | No conflicts. Signed-off-by: Jakub Kicinski <kuba@kernel.org>
| * net: usb: lan78xx: add Allied Telesis AT29M2-AFGreg Jesionowski2021-12-151-0/+6
| | | | | | | | | | | | | | | | | | This adds the vendor and product IDs for the AT29M2-AF which is a lan7801-based device. Signed-off-by: Greg Jesionowski <jesionowskigreg@gmail.com> Link: https://lore.kernel.org/r/20211214221027.305784-1-jesionowskigreg@gmail.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
* | Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/netJakub Kicinski2021-12-021-1/+1
|\| | | | | | | Signed-off-by: Jakub Kicinski <kuba@kernel.org>
| * net: usb: lan78xx: lan78xx_phy_init(): use PHY_POLL instead of "0" if no IRQ ↵Sven Schuchmann2021-11-291-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | is available On most systems request for IRQ 0 will fail, phylib will print an error message and fall back to polling. To fix this set the phydev->irq to PHY_POLL if no IRQ is available. Fixes: cc89c323a30e ("lan78xx: Use irq_domain for phy interrupt from USB Int. EP") Reviewed-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: Sven Schuchmann <schuchmann@schleissheimer.de> Signed-off-by: David S. Miller <davem@davemloft.net>
* | lan78xx: Clean up some inconsistent indentingJiapeng Chong2021-11-241-2/+1
| | | | | | | | | | | | | | | | | | | | | | Eliminate the follow smatch warning: drivers/net/usb/lan78xx.c:4961 lan78xx_resume() warn: inconsistent indenting. Reported-by: Abaci Robot <abaci@linux.alibaba.com> Signed-off-by: Jiapeng Chong <jiapeng.chong@linux.alibaba.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | lan78xx: Introduce NAPI polling supportJohn Efstathiades2021-11-181-68/+114
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch introduces a NAPI-style approach for processing completed Rx URBs that contributes to improving driver throughput and reducing CPU load. Packets in completed URBs are copied to NAPI SKBs and passed to the network stack for processing. Each frame passed to the stack is one work item in the NAPI budget. If the NAPI budget is consumed and frames remain, they are added to an overflow queue that is processed at the start of the next NAPI polling cycle. The NAPI handler is also responsible for copying pending Tx data to Tx URBs and submitting them to the USB host controller for transmission. Signed-off-by: John Efstathiades <john.efstathiades@pebblebay.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | lan78xx: Remove hardware-specific header updateJohn Efstathiades2021-11-181-35/+16
| | | | | | | | | | | | | | | | | | | | Remove hardware-specific header length adjustment as it is no longer required. It also breaks generic receive offload (GRO) processing of received TCP frames that results in a TCP ACK being sent for each received frame. Signed-off-by: John Efstathiades <john.efstathiades@pebblebay.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | lan78xx: Re-order rx_submit() to remove forward declarationJohn Efstathiades2021-11-181-54/+52
| | | | | | | | | | | | | | | | Move position of rx_submit() to remove forward declaration of rx_complete() which is now no longer required. Signed-off-by: John Efstathiades <john.efstathiades@pebblebay.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | lan78xx: Introduce Rx URB processing improvementsJohn Efstathiades2021-11-181-116/+166
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch introduces a new approach to allocating and managing Rx URBs that contributes to improving driver throughput and reducing CPU load. A pool of Rx URBs is created during driver instantiation. All the URBs are initially submitted to the USB host controller for processing. The default URB buffer size is different for each USB bus speed. The chosen sizes provide good USB utilisation with little impact on overall packet latency. Completed URBs are processed in the driver bottom half. The URB buffer contents are copied to a dynamically allocated SKB, which is then passed to the network stack. The URB is then re-submitted to the USB host controller. NOTE: the call to skb_copy() in rx_process() that copies the URB contents to a new SKB is a temporary change to make this patch work in its own right. This call will be removed when the NAPI processing is introduced by patch 6 in this patch set. Signed-off-by: John Efstathiades <john.efstathiades@pebblebay.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | lan78xx: Introduce Tx URB processing improvementsJohn Efstathiades2021-11-181-213/+461
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch introduces a new approach to allocating and managing Tx URBs that contributes to improving driver throughput and reducing CPU load. A pool of Tx URBs is created during driver instantiation. A URB is allocated from the pool when there is data to transmit. The URB is released back to the pool when the data has been transmitted by the device. The default URB buffer size is different for each USB bus speed. The chosen sizes provide good USB utilisation with little impact on overall packet latency. SKBs to be transmitted are added to a pending queue for processing. The driver tracks the available Tx URB buffer space and copies as much pending data as possible into each free URB. Each full URB is then submitted to the USB host controller for transmission. Signed-off-by: John Efstathiades <john.efstathiades@pebblebay.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | lan78xx: Fix memory allocation bugJohn Efstathiades2021-11-181-17/+21
|/ | | | | | | Fix memory allocation that fails to check for NULL return. Signed-off-by: John Efstathiades <john.efstathiades@pebblebay.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/netJakub Kicinski2021-10-281-0/+6
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | include/net/sock.h 7b50ecfcc6cd ("net: Rename ->stream_memory_read to ->sock_is_readable") 4c1e34c0dbff ("vsock: Enable y2038 safe timeval for timeout") drivers/net/ethernet/marvell/octeontx2/af/rvu_debugfs.c 0daa55d033b0 ("octeontx2-af: cn10k: debugfs for dumping LMTST map table") e77bcdd1f639 ("octeontx2-af: Display all enabled PF VF rsrc_alloc entries.") Adjacent code addition in both cases, keep both. Signed-off-by: Jakub Kicinski <kuba@kernel.org>
| * net: lan78xx: fix division by zero in send pathJohan Hovold2021-10-261-0/+6
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Add the missing endpoint max-packet sanity check to probe() to avoid division by zero in lan78xx_tx_bh() in case a malicious device has broken descriptors (or when doing descriptor fuzz testing). Note that USB core will reject URBs submitted for endpoints with zero wMaxPacketSize but that drivers doing packet-size calculations still need to handle this (cf. commit 2548288b4fb0 ("USB: Fix: Don't skip endpoint descriptors with maxpacket=0")). Fixes: 55d7de9de6c3 ("Microchip's LAN7800 family USB 2/3 to 10/100/1000 Ethernet device driver") Cc: stable@vger.kernel.org # 4.3 Cc: Woojung.Huh@microchip.com <Woojung.Huh@microchip.com> Signed-off-by: Johan Hovold <johan@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
* | net: usb: use eth_hw_addr_set() instead of ether_addr_copy()Jakub Kicinski2021-10-021-2/+2
|/ | | | | | | | | | | | | | | | | | Commit 406f42fa0d3c ("net-next: When a bond have a massive amount of VLANs...") introduced a rbtree for faster Ethernet address look up. To maintain netdev->dev_addr in this tree we need to make all the writes to it got through appropriate helpers. Convert net/usb from ether_addr_copy() to eth_hw_addr_set(): @@ expression dev, np; @@ - ether_addr_copy(dev->dev_addr, np) + eth_hw_addr_set(dev, np) Signed-off-by: Jakub Kicinski <kuba@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
* lan78xx: Limit number of driver warning messagesJohn Efstathiades2021-08-251-2/+3
| | | | | | | | | | | Device removal can result in a large burst of driver warning messages (20 - 30) sent to the kernel log. Most of these are register read/write failures. This change limits the rate at which these messages are emitted. Signed-off-by: John Efstathiades <john.efstathiades@pebblebay.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* lan78xx: Fix race condition in disconnect handlingJohn Efstathiades2021-08-251-9/+57
| | | | | | | | | | | | | | | | | | | | | If there is a device disconnect at roughly the same time as a deferred PHY link reset there is a race condition that can result in a kernel lock up due to a null pointer dereference in the driver's deferred work handling routine lan78xx_delayedwork(). The following changes fix this problem. Add new status flag EVENT_DEV_DISCONNECT to indicate when the device has been removed and use it to prevent operations, such as register access, that will fail once the device is removed. Stop processing of deferred work items when the driver's USB disconnect handler is invoked. Disconnect the PHY only after the network device has been unregistered and all delayed work has been cancelled. Signed-off-by: John Efstathiades <john.efstathiades@pebblebay.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* lan78xx: Fix race conditions in suspend/resume handlingJohn Efstathiades2021-08-251-135/+284
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | If the interface is given an IP address while the device is suspended (as a result of an auto-suspend event) there is a race between lan78xx_resume() and lan78xx_open() that can result in an exception or failure to handle incoming packets. The following changes fix this problem. Introduce a mutex to serialise operations in the network interface open and stop entry points with respect to the USB driver suspend and resume entry points. Move Tx and Rx data path start/stop to lan78xx_start() and lan78xx_stop() respectively and flush the packet FIFOs before starting the Tx and Rx data paths. This prevents the MAC and FIFOs getting out of step and delivery of malformed packets to the network stack. Stop processing of received packets before disconnecting the PHY from the MAC to prevent a kernel exception caused by handling packets after the PHY device has been removed. Refactor device auto-suspend code to make it consistent with the the system suspend code and make the suspend handler easier to read. Add new code to stop wake-on-lan packets or PHY events resuming the host or device from suspend if the device has not been opened (typically after an IP address is assigned). This patch is dependent on changes to lan78xx_suspend() and lan78xx_resume() introduced in the previous patch of this patch set. Signed-off-by: John Efstathiades <john.efstathiades@pebblebay.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* lan78xx: Fix partial packet errors on suspend/resumeJohn Efstathiades2021-08-251-106/+197
| | | | | | | | | | | | | | | | | | | | | | | | | | | | The MAC can get out of step with the internal packet FIFOs if the system goes to sleep when the link is active, especially at high data rates. This can result in partial frames in the packet FIFOs that in result in malformed frames being delivered to the host. This occurs because the driver does not enable/disable the internal packet FIFOs in step with the corresponding MAC data path. The following changes fix this problem. Update code that enables/disables the MAC receiver and transmitter to the more general Rx and Tx data path, where the data path in each direction consists of both the MAC function (Tx or Rx) and the corresponding packet FIFO. In the receive path the packet FIFO must be enabled before the MAC receiver but disabled after the MAC receiver. In the transmit path the opposite is true: the packet FIFO must be enabled after the MAC transmitter but disabled before the MAC transmitter. The packet FIFOs can be flushed safely once the corresponding data path is stopped. Signed-off-by: John Efstathiades <john.efstathiades@pebblebay.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* lan78xx: Fix exception on link speed changeJohn Efstathiades2021-08-251-6/+48
| | | | | | | | | | | | | | | An exception is sometimes seen when the link speed is changed from auto-negotiation to a fixed speed, or vice versa. The exception occurs when the MAC is reset (due to the link speed change) at the same time as the PHY state machine is accessing a PHY register. The following changes fix this problem. Rework the MAC reset to ensure there is no outstanding MDIO register transaction before the reset and then wait until the reset is complete before allowing any further MAC register access. Signed-off-by: John Efstathiades <john.efstathiades@pebblebay.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* lan78xx: Add missing return code checksJohn Efstathiades2021-08-251-66/+333
| | | | | | | | | | | | | | | There are many places in the driver where the return code from a function call is captured but without a subsequent test of the return code and appropriate action taken. This patch adds the missing return code tests and action. In most cases the action is an early exit from the calling function. The function lan78xx_set_suspend() was also updated to make it consistent with lan78xx_suspend(). Signed-off-by: John Efstathiades <john.efstathiades@pebblebay.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* lan78xx: Remove unused pause frame queueJohn Efstathiades2021-08-251-9/+0
| | | | | | | | Remove the pause frame queue from the driver. It is initialised but not actually used. Signed-off-by: John Efstathiades <john.efstathiades@pebblebay.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* lan78xx: Set flow control threshold to prevent packet lossJohn Efstathiades2021-08-251-2/+15
| | | | | | | | | | Set threshold at which flow control is triggered to 3/4 full of the internal Rx packet FIFO to prevent packet drops at high data rates. The new setting reduces the number of dropped UDP frames and TCP retransmit requests especially on less capable CPUs. Signed-off-by: John Efstathiades <john.efstathiades@pebblebay.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* lan78xx: Remove unused timerJohn Efstathiades2021-08-251-3/+1
| | | | | | | Remove kernel timer that is not used by the driver. Signed-off-by: John Efstathiades <john.efstathiades@pebblebay.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* lan78xx: Fix white space and style issuesJohn Efstathiades2021-08-251-38/+42
| | | | | | | Fix white space and code style issues identified by checkpatch. Signed-off-by: John Efstathiades <john.efstathiades@pebblebay.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/netJakub Kicinski2021-08-051-4/+12
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Build failure in drivers/net/wwan/mhi_wwan_mbim.c: add missing parameter (0, assuming we don't want buffer pre-alloc). Conflict in drivers/net/dsa/sja1105/sja1105_main.c between: 589918df9322 ("net: dsa: sja1105: be stateless with FDB entries on SJA1105P/Q/R/S/SJA1110 too") 0fac6aa098ed ("net: dsa: sja1105: delete the best_effort_vlan_filtering mode") Follow the instructions from the commit message of the former commit - removed the if conditions. When looking at commit 589918df9322 ("net: dsa: sja1105: be stateless with FDB entries on SJA1105P/Q/R/S/SJA1110 too") note that the mask_iotag fields get removed by the following patch. Signed-off-by: Jakub Kicinski <kuba@kernel.org>
| * net: usb: lan78xx: don't modify phy_device state concurrentlyIvan T. Ivanov2021-08-041-4/+12
| | | | | | | | | | | | | | | | | | | | | | | | | | Currently phy_device state could be left in inconsistent state shown by following alert message[1]. This is because phy_read_status could be called concurrently from lan78xx_delayedwork, phy_state_machine and __ethtool_get_link. Fix this by making sure that phy_device state is updated atomically. [1] lan78xx 1-1.1.1:1.0 eth0: No phy led trigger registered for speed(-1) Signed-off-by: Ivan T. Ivanov <iivanov@suse.de> Signed-off-by: David S. Miller <davem@davemloft.net>
* | dev_ioctl: split out ndo_eth_ioctlArnd Bergmann2021-07-271-1/+1
|/ | | | | | | | | | | | | | | | | | | | | | | | | | | Most users of ndo_do_ioctl are ethernet drivers that implement the MII commands SIOCGMIIPHY/SIOCGMIIREG/SIOCSMIIREG, or hardware timestamping with SIOCSHWTSTAMP/SIOCGHWTSTAMP. Separate these from the few drivers that use ndo_do_ioctl to implement SIOCBOND, SIOCBR and SIOCWANDEV commands. This is a purely cosmetic change intended to help readers find their way through the implementation. Cc: Doug Ledford <dledford@redhat.com> Cc: Jason Gunthorpe <jgg@ziepe.ca> Cc: Jay Vosburgh <j.vosburgh@gmail.com> Cc: Veaceslav Falico <vfalico@gmail.com> Cc: Andy Gospodarek <andy@greyhouse.net> Cc: Andrew Lunn <andrew@lunn.ch> Cc: Vivien Didelot <vivien.didelot@gmail.com> Cc: Florian Fainelli <f.fainelli@gmail.com> Cc: Vladimir Oltean <olteanv@gmail.com> Cc: Leon Romanovsky <leon@kernel.org> Cc: linux-rdma@vger.kernel.org Signed-off-by: Arnd Bergmann <arnd@arndb.de> Acked-by: Jason Gunthorpe <jgg@nvidia.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* net: usb: Fix spelling mistakesZheng Yongjun2021-06-011-1/+1
| | | | | | | | | | | | | | | | | | wierdness ==> weirdness multicat ==> multicast limite ==> limit adddress ==> address operater ==> operator intial ==> initial smaler ==> smaller Communcation ==> Communication funcitons ==> functions everytime ==> every time Neigbor ==> Neighbor performace ==> performance Signed-off-by: Zheng Yongjun <zhengyongjun3@huawei.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* net: lan78xx: advertise tx software timestamping supportMarkus Bloechl2021-05-181-0/+1
| | | | | | | | | lan78xx already calls skb_tx_timestamp() in its lan78xx_start_xmit(). Override .get_ts_info to also advertise this capability (SOF_TIMESTAMPING_TX_SOFTWARE) via ethtool. Signed-off-by: Markus Blöchl <markus.bloechl@ipetronik.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* net: usb: lan78xx: remove unused including <linux/version.h>Zheng Yongjun2021-03-251-1/+0
| | | | | | | | | Remove including <linux/version.h> that don't need it. Reported-by: Hulk Robot <hulkci@huawei.com> Signed-off-by: Zheng Yongjun <zhengyongjun3@huawei.com> Acked-by: Woojung Huh <Woojung.Huh@microchip.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* net: usb: lan78xx: use new tasklet APIEmil Renner Berthing2021-02-021-3/+3
| | | | | | | | This converts the driver to use the new tasklet API introduced in commit 12cc923f1ccc ("tasklet: Introduce new initialization API") Signed-off-by: Emil Renner Berthing <kernel@esmil.dk> Signed-off-by: Jakub Kicinski <kuba@kernel.org>
* net: usb: lan78xx: Remove lots of set but unused 'ret' variablesLee Jones2020-11-031-90/+78
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Fixes the following W=1 kernel build warning(s): drivers/net/usb/lan78xx.c: In function ‘lan78xx_read_raw_otp’: drivers/net/usb/lan78xx.c:825:6: warning: variable ‘ret’ set but not used [-Wunused-but-set-variable] drivers/net/usb/lan78xx.c: In function ‘lan78xx_write_raw_otp’: drivers/net/usb/lan78xx.c:879:6: warning: variable ‘ret’ set but not used [-Wunused-but-set-variable] drivers/net/usb/lan78xx.c: In function ‘lan78xx_deferred_multicast_write’: drivers/net/usb/lan78xx.c:1041:6: warning: variable ‘ret’ set but not used [-Wunused-but-set-variable] drivers/net/usb/lan78xx.c: In function ‘lan78xx_update_flowcontrol’: drivers/net/usb/lan78xx.c:1127:6: warning: variable ‘ret’ set but not used [-Wunused-but-set-variable] drivers/net/usb/lan78xx.c: In function ‘lan78xx_init_mac_address’: drivers/net/usb/lan78xx.c:1666:6: warning: variable ‘ret’ set but not used [-Wunused-but-set-variable] drivers/net/usb/lan78xx.c: In function ‘lan78xx_link_status_change’: drivers/net/usb/lan78xx.c:1841:6: warning: variable ‘ret’ set but not used [-Wunused-but-set-variable] drivers/net/usb/lan78xx.c: In function ‘lan78xx_irq_bus_sync_unlock’: drivers/net/usb/lan78xx.c:1920:6: warning: variable ‘ret’ set but not used [-Wunused-but-set-variable] drivers/net/usb/lan78xx.c: In function ‘lan8835_fixup’: drivers/net/usb/lan78xx.c:1994:6: warning: variable ‘ret’ set but not used [-Wunused-but-set-variable] drivers/net/usb/lan78xx.c: In function ‘lan78xx_set_rx_max_frame_length’: drivers/net/usb/lan78xx.c:2192:6: warning: variable ‘ret’ set but not used [-Wunused-but-set-variable] drivers/net/usb/lan78xx.c: In function ‘lan78xx_change_mtu’: drivers/net/usb/lan78xx.c:2270:6: warning: variable ‘ret’ set but not used [-Wunused-but-set-variable] drivers/net/usb/lan78xx.c: In function ‘lan78xx_set_mac_addr’: drivers/net/usb/lan78xx.c:2299:6: warning: variable ‘ret’ set but not used [-Wunused-but-set-variable] drivers/net/usb/lan78xx.c: In function ‘lan78xx_set_features’: drivers/net/usb/lan78xx.c:2333:6: warning: variable ‘ret’ set but not used [-Wunused-but-set-variable] drivers/net/usb/lan78xx.c: In function ‘lan78xx_set_suspend’: drivers/net/usb/lan78xx.c:3807:6: warning: variable ‘ret’ set but not used [-Wunused-but-set-variable] Signed-off-by: Lee Jones <lee.jones@linaro.org> Link: https://lore.kernel.org/r/20201102114512.1062724-25-lee.jones@linaro.org Signed-off-by: Jakub Kicinski <kuba@kernel.org>
* treewide: Use fallthrough pseudo-keywordGustavo A. R. Silva2020-08-231-2/+2
| | | | | | | | | | Replace the existing /* fall through */ comments and its variants with the new pseudo-keyword macro fallthrough[1]. Also, remove unnecessary fall-through markings when it is the case. [1] https://www.kernel.org/doc/html/v5.7/process/deprecated.html?highlight=fallthrough#implicit-switch-case-fall-through Signed-off-by: Gustavo A. R. Silva <gustavoars@kernel.org>
* net: lan78xx: replace bogus endpoint lookupJohan Hovold2020-07-281-87/+30
| | | | | | | | | | | | | | | | | | Drop the bogus endpoint-lookup helper which could end up accepting interfaces based on endpoints belonging to unrelated altsettings. Note that the returned bulk pipes and interrupt endpoint descriptor were never actually used. Instead the bulk-endpoint numbers are hardcoded to 1 and 2 (matching the specification), while the interrupt- endpoint descriptor was assumed to be the third descriptor created by USB core. Try to bring some order to this by dropping the bogus lookup helper and adding the missing endpoint sanity checks while keeping the interrupt- descriptor assumption for now. Signed-off-by: Johan Hovold <johan@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
* net: lan78xx: fix transfer-buffer memory leakJohan Hovold2020-07-281-0/+1
| | | | | | | | | | The interrupt URB transfer-buffer was never freed on disconnect or after probe errors. Fixes: 55d7de9de6c3 ("Microchip's LAN7800 family USB 2/3 to 10/100/1000 Ethernet device driver") Cc: Woojung.Huh@microchip.com <Woojung.Huh@microchip.com> Signed-off-by: Johan Hovold <johan@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
* net: lan78xx: add missing endpoint sanity checkJohan Hovold2020-07-281-0/+5
| | | | | | | | | | | | | | | Add the missing endpoint sanity check to prevent a NULL-pointer dereference should a malicious device lack the expected endpoints. Note that the driver has a broken endpoint-lookup helper, lan78xx_get_endpoints(), which can end up accepting interfaces in an altsetting without endpoints as long as *some* altsetting has a bulk-in and a bulk-out endpoint. Fixes: 55d7de9de6c3 ("Microchip's LAN7800 family USB 2/3 to 10/100/1000 Ethernet device driver") Cc: Woojung.Huh@microchip.com <Woojung.Huh@microchip.com> Signed-off-by: Johan Hovold <johan@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
* Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/netDavid S. Miller2020-01-261-0/+15
|\ | | | | | | | | | | | | Minor conflict in mlx5 because changes happened to code that has moved meanwhile. Signed-off-by: David S. Miller <davem@davemloft.net>
| * net: usb: lan78xx: Add .ndo_features_checkJames Hughes2020-01-211-0/+15
| | | | | | | | | | | | | | | | | | | | | | | | | | As reported by Eric Dumazet, there are still some outstanding cases where the driver does not handle TSO correctly when skb's are over a certain size. Most cases have been fixed, this patch should ensure that forwarded SKB's that are greater than MAX_SINGLE_PACKET_SIZE - TX_OVERHEAD are software segmented and handled correctly. Signed-off-by: James Hughes <james.hughes@raspberrypi.org> Reviewed-by: Eric Dumazet <edumazet@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | net: convert suitable drivers to use phy_do_ioctl_runningHeiner Kallweit2020-01-231-9/+1
| | | | | | | | | | | | | | | | | | Convert suitable drivers to use new helper phy_do_ioctl_running. Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com> Acked-by: Timur Tabi <timur@kernel.org> Acked-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | Merge ra.kernel.org:/pub/scm/linux/kernel/git/netdev/netDavid S. Miller2020-01-191-0/+1
|\|
| * net: usb: lan78xx: limit size of local TSO packetsEric Dumazet2020-01-141-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | lan78xx_tx_bh() makes sure to not exceed MAX_SINGLE_PACKET_SIZE bytes in the aggregated packets it builds, but does nothing to prevent large GSO packets being submitted. Pierre-Francois reported various hangs when/if TSO is enabled. For localy generated packets, we can use netif_set_gso_max_size() to limit the size of TSO packets. Note that forwarded packets could still hit the issue, so a complete fix might require implementing .ndo_features_check for this driver, forcing a software segmentation if the size of the TSO packet exceeds MAX_SINGLE_PACKET_SIZE. Fixes: 55d7de9de6c3 ("Microchip's LAN7800 family USB 2/3 to 10/100/1000 Ethernet device driver") Signed-off-by: Eric Dumazet <edumazet@google.com> Reported-by: RENARD Pierre-Francois <pfrenard@gmail.com> Tested-by: RENARD Pierre-Francois <pfrenard@gmail.com> Cc: Stefan Wahren <stefan.wahren@i2se.com> Cc: Woojung Huh <woojung.huh@microchip.com> Cc: Microchip Linux Driver Support <UNGLinuxDriver@microchip.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/netDavid S. Miller2020-01-091-6/+3
|\| | | | | | | | | | | | | | | The ungrafting from PRIO bug fixes in net, when merged into net-next, merge cleanly but create a build failure. The resolution used here is from Petr Machata. Signed-off-by: David S. Miller <davem@davemloft.net>
| * net: usb: lan78xx: fix possible skb leakEric Dumazet2020-01-071-6/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | If skb_linearize() fails, we need to free the skb. TSO makes skb bigger, and this bug might be the reason Raspberry Pi 3B+ users had to disable TSO. Fixes: 55d7de9de6c3 ("Microchip's LAN7800 family USB 2/3 to 10/100/1000 Ethernet device driver") Signed-off-by: Eric Dumazet <edumazet@google.com> Reported-by: RENARD Pierre-Francois <pfrenard@gmail.com> Cc: Stefan Wahren <stefan.wahren@i2se.com> Cc: Woojung Huh <woojung.huh@microchip.com> Cc: Microchip Linux Driver Support <UNGLinuxDriver@microchip.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/netDavid S. Miller2019-12-221-1/+2
|\| | | | | | | | | | | Mere overlapping changes in the conflicts here. Signed-off-by: David S. Miller <davem@davemloft.net>
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