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path: root/drivers/net/ethernet/microchip/enc28j60.c
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* net: microchip: enc28j60: use new api ethtool_{get|set}_link_ksettingsPhilippe Reynes2017-02-121-14/+17
| | | | | | | | | | | The ethtool api {get|set}_settings is deprecated. We move this driver to new api {get|set}_link_ksettings. As I don't have the hardware, I'd be very pleased if someone may test this patch. Signed-off-by: Philippe Reynes <tremyfr@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* net: deprecate eth_change_mtu, remove usageJarod Wilson2016-10-131-1/+0
| | | | | | | | | | | | | | | | | | | | | With centralized MTU checking, there's nothing productive done by eth_change_mtu that isn't already done in dev_set_mtu, so mark it as deprecated and remove all usage of it in the kernel. All callers have been audited for calls to alloc_etherdev* or ether_setup directly, which means they all have a valid dev->min_mtu and dev->max_mtu. Now eth_change_mtu prints out a netdev_warn about being deprecated, for the benefit of out-of-tree drivers that might be utilizing it. Of note, dvb_net.c actually had dev->mtu = 4096, while using eth_change_mtu, meaning that if you ever tried changing it's mtu, you couldn't set it above 1500 anymore. It's now getting dev->max_mtu also set to 4096 to remedy that. v2: fix up lantiq_etop, missed breakage due to drive not compiling on x86 CC: netdev@vger.kernel.org Signed-off-by: Jarod Wilson <jarod@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* enc28j60: Fix race condition in enc28j60 driverSergio Valverde2016-07-021-2/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | The interrupt worker code for the enc28j60 relies only on the TXIF flag to determinate if the packet transmission was completed. However the datasheet specifies in section 12.1.3 that TXERIF will clear the TXRTS after a transmit abort. Also in section 12.1.4 that TXIF will be set when TXRTS transitions from '1' to '0'. Therefore the TXIF flag is enabled during transmission errors. This causes a race condition, since the worker code will invoke enc28j60_tx_clear() -> netif_wake_queue(), potentially invoking the ndo_start_xmit function to send a new packet. The enc28j60_send_packet function uses a workqueue that invokes enc28j60_hw_tx(). In between this function is called, the worker from the interrupt handler will enter the path for error handler because of the TXERIF flag, causing to invoke enc28j60_tx_clear() again and releasing the packet scheduled for transmission, causing a kernel crash with due a NULL pointer. These crashes due a NULL pointer were observed under stress conditions of the device. A BUG_ON() sequence was used to validate the issue was fixed, and has been running without problems for 2 years now. Signed-off-by: Diego Dompe <dompe@hpe.com> Acked-by: Sergio Valverde <sergio.valverde@hpe.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* net: ethernet: enc28j60: add device tree supportMichael Heimpold2016-04-291-3/+17
| | | | | | | | | | | The following patch adds the required match table for device tree support (and while at, fix the indent). It's also possible to specify the MAC address in the DT blob. Also add the corresponding binding documentation file. Signed-off-by: Michael Heimpold <mhei@heimpold.de> Signed-off-by: David S. Miller <davem@davemloft.net>
* net: ethernet: enc28j60: support half-duplex SPI controllersMichael Heimpold2016-04-291-5/+9
| | | | | | | | | | | The current spi_read_buf function fails on SPI host masters which are only half-duplex capable. Splitting the Tx and Rx part solves this issue. Tested on Raspberry Pi (full duplex) and I2SE Duckbill (half duplex). Signed-off-by: Michael Heimpold <mhei@heimpold.de> Signed-off-by: David S. Miller <davem@davemloft.net>
* spi: Drop owner assignment from spi_driversAndrew F. Davis2015-10-281-1/+0
| | | | | | | | | An spi_driver does not need to set an owner, it will be populated by the driver core. Signed-off-by: Andrew F. Davis <afd@ti.com> Acked-by: Jonathan Cameron <jic23@kernel.org> Signed-off-by: Mark Brown <broonie@kernel.org>
* net: get rid of SET_ETHTOOL_OPSWilfried Klaebe2014-05-131-1/+1
| | | | | | | | | | | | | | | | | | | | | | net: get rid of SET_ETHTOOL_OPS Dave Miller mentioned he'd like to see SET_ETHTOOL_OPS gone. This does that. Mostly done via coccinelle script: @@ struct ethtool_ops *ops; struct net_device *dev; @@ - SET_ETHTOOL_OPS(dev, ops); + dev->ethtool_ops = ops; Compile tested only, but I'd seriously wonder if this broke anything. Suggested-by: Dave Miller <davem@davemloft.net> Signed-off-by: Wilfried Klaebe <w-lkml@lebenslange-mailadresse.de> Acked-by: Felipe Balbi <balbi@ti.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* net: ethernet: enc28j60: use spi_get_drvdata() and spi_set_drvdata()Jingoo Han2013-04-071-2/+2
| | | | | | | | | Use the wrapper functions for getting and setting the driver data using spi_device instead of using dev_{get|set}_drvdata with &spi->dev, so we can directly pass a struct spi_device. Signed-off-by: Jingoo Han <jg1.han@samsung.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* net: remove unnecessary NET_ADDR_RANDOM "bitclean"Jiri Pirko2013-01-031-1/+0
| | | | | | | | NET_ADDR_SET is set in dev_set_mac_address() no need to alter dev->addr_assign_type value in drivers. Signed-off-by: Jiri Pirko <jiri@resnulli.us> Signed-off-by: David S. Miller <davem@davemloft.net>
* enc28j60: remove __dev* attributesBill Pemberton2012-12-031-3/+3
| | | | | | | | | | | CONFIG_HOTPLUG is going away as an option. As result the __dev* markings will be going away. Remove use of __devinit, __devexit_p, __devinitdata, __devinitconst, and __devexit. Signed-off-by: Bill Pemberton <wfp5p@virginia.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* net: use eth_hw_addr_random() and reset addr_assign_typeDanny Kukawka2012-02-151-1/+2
| | | | | | | | | | | | | Use eth_hw_addr_random() instead of calling random_ether_addr() to set addr_assign_type correctly to NET_ADDR_RANDOM. Reset the state to NET_ADDR_PERM as soon as the MAC get changed via .ndo_set_mac_address. v2: adapt to renamed eth_hw_addr_random() Signed-off-by: Danny Kukawka <danny.kukawka@bisect.de> Signed-off-by: David S. Miller <davem@davemloft.net>
* netdev: ethernet dev_alloc_skb to netdev_alloc_skbPradeep A Dalvi2012-02-061-2/+1
| | | | | | | | Replaced deprecating dev_alloc_skb with netdev_alloc_skb in drivers/net/ethernet - Removed extra skb->dev = dev after netdev_alloc_skb Signed-off-by: Pradeep A Dalvi <netdev@pradeepdalvi.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* drivers/net: Remove alloc_etherdev error messagesJoe Perches2012-01-311-3/+0
| | | | | | | | alloc_etherdev has a generic OOM/unable to alloc message. Remove the duplicative messages after alloc_etherdev calls. Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* net: remove use of ndo_set_multicast_list in driversJiri Pirko2011-08-171-1/+1
| | | | | | | replace it by ndo_set_rx_mode Signed-off-by: Jiri Pirko <jpirko@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* enc28j60: Move the Microchip driverJeff Kirsher2011-08-121-0/+1667
Move the Microchip driver into drivers/net/ethernet/microchip/ and make the necessary Kconfig and Makefile changes. CC: Claudio Lanconelli <lanconelli.claudio@eptar.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
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