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2019-09-05net: mpoa: Use kzfree rather than its implementation.zhong jiang1-4/+2
Use kzfree instead of memset() + kfree(). Signed-off-by: zhong jiang <zhongjiang@huawei.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-09-05sunrpc: Use kzfree rather than its implementation.zhong jiang1-6/+3
Use kzfree instead of memset() + kfree(). Signed-off-by: zhong jiang <zhongjiang@huawei.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-09-05ixgbe: Use kzfree() rather than its implementation.zhong jiang1-6/+3
Use kzfree() instead of memset() + kfree(). Signed-off-by: zhong jiang <zhongjiang@huawei.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-09-05vsock/virtio: a better comment on credit updateMichael S. Tsirkin1-2/+7
The comment we have is just repeating what the code does. Include the *reason* for the condition instead. Cc: Stefano Garzarella <sgarzare@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com> Reviewed-by: Stefano Garzarella <sgarzare@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-09-05net/tls: dedup the record cleanupJakub Kicinski1-5/+1
If retransmit record hint fall into the cleanup window we will free it by just walking the list. No need to duplicate the code. Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com> Reviewed-by: John Hurley <john.hurley@netronome.com> Reviewed-by: Dirk van der Merwe <dirk.vandermerwe@netronome.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-09-05net/tls: clean up the number of #ifdefs for CONFIG_TLS_DEVICEJakub Kicinski3-28/+35
TLS code has a number of #ifdefs which make the code a little harder to follow. Recent fixes removed the ifdef around the TLS_HW define, so we can switch to the often used pattern of defining tls_device functions as empty static inlines in the header when CONFIG_TLS_DEVICE=n. Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com> Reviewed-by: John Hurley <john.hurley@netronome.com> Reviewed-by: Dirk van der Merwe <dirk.vandermerwe@netronome.com> Acked-by: John Fastabend <john.fastabend@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-09-05net/tls: narrow down the critical area of device_offload_lockJakub Kicinski1-24/+22
On setsockopt path we need to hold device_offload_lock from the moment we check netdev is up until the context is fully ready to be added to the tls_device_list. No need to hold it around the get_netdev_for_sock(). Change the code and remove the confusing comment. Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com> Reviewed-by: John Hurley <john.hurley@netronome.com> Reviewed-by: Dirk van der Merwe <dirk.vandermerwe@netronome.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-09-05net/tls: don't jump to returnJakub Kicinski1-13/+13
Reusing parts of error path for normal exit will make next commit harder to read, untangle the two. Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com> Reviewed-by: John Hurley <john.hurley@netronome.com> Reviewed-by: Dirk van der Merwe <dirk.vandermerwe@netronome.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-09-05net/tls: use the full sk_proto pointerJakub Kicinski3-29/+14
Since we already have the pointer to the full original sk_proto stored use that instead of storing all individual callback pointers as well. Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com> Reviewed-by: John Hurley <john.hurley@netronome.com> Reviewed-by: Dirk van der Merwe <dirk.vandermerwe@netronome.com> Acked-by: John Fastabend <john.fastabend@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-09-05Convert usage of IN_MULTICAST to ipv4_is_multicastDave Taht5-9/+9
IN_MULTICAST's primary intent is as a uapi macro. Elsewhere in the kernel we use ipv4_is_multicast consistently. This patch unifies linux's multicast checks to use that function rather than this macro. Signed-off-by: Dave Taht <dave.taht@gmail.com> Reviewed-by: Toke Høiland-Jørgensen <toke@toke.dk> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-09-05net/sched: cbs: remove redundant assignment to variable port_rateColin Ian King1-1/+1
Variable port_rate is being initialized with a value that is never read and is being re-assigned a little later on. The assignment is redundant and hence can be removed. Addresses-Coverity: ("Unused value") Signed-off-by: Colin Ian King <colin.king@canonical.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-09-05ionic: Add coalesce and other featuresShannon Nelson5-3/+166
Interrupt coalescing, tunable copybreak value, and tx timeout. Signed-off-by: Shannon Nelson <snelson@pensando.io> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-09-05ionic: Add RSS supportShannon Nelson3-0/+165
Add code to manipulate through ethtool the RSS configuration used by the NIC. Signed-off-by: Shannon Nelson <snelson@pensando.io> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-09-05ionic: Add driver statsShannon Nelson5-2/+480
Add in the detailed statistics for ethtool -S that the driver keeps as it processes packets. Display of the additional debug statistics can be enabled through the ethtool priv-flags feature. Signed-off-by: Shannon Nelson <snelson@pensando.io> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-09-05ionic: Add netdev-event handlingShannon Nelson2-0/+64
When the netdev gets a new name from userland, pass that name down to the NIC for internal tracking. Signed-off-by: Shannon Nelson <snelson@pensando.io> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-09-05ionic: Add Tx and Rx handlingShannon Nelson5-1/+1408
Add both the Tx and Rx queue setup and handling. The related stats display comes later. Instead of using the generic napi routines used by the slow-path commands, the Tx and Rx paths are simplified and inlined in one file in order to get better compiler optimizations. Signed-off-by: Shannon Nelson <snelson@pensando.io> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-09-05ionic: Add initial ethtool supportShannon Nelson6-1/+519
Add in the basic ethtool callbacks for device information and control. Signed-off-by: Shannon Nelson <snelson@pensando.io> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-09-05ionic: Add async link status check and basic statsShannon Nelson2-6/+111
Add code to handle the link status event, and wire up the basic netdev hardware stats. Signed-off-by: Shannon Nelson <snelson@pensando.io> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-09-05ionic: Add Rx filter and rx_mode ndo supportShannon Nelson2-6/+423
Add the Rx filtering and rx_mode NDO callbacks. Also add the deferred work thread handling needed to manage the filter requests outside of the netif_addr_lock spinlock. Signed-off-by: Shannon Nelson <snelson@pensando.io> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-09-05ionic: Add management of rx filtersShannon Nelson5-1/+194
Set up the infrastructure for managing Rx filters. We can't ask the hardware for what filters it has, so we keep a local list of filters that we've pushed into the HW. Signed-off-by: Shannon Nelson <snelson@pensando.io> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-09-05ionic: Add the basic NDO callbacks for netdev supportShannon Nelson6-2/+387
Set up the initial NDO structure and callbacks for netdev to use, and register the netdev. This will allow us to do a few basic operations on the device, but no traffic yet. Signed-off-by: Shannon Nelson <snelson@pensando.io> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-09-05ionic: Add notifyq supportShannon Nelson3-2/+186
The AdminQ is fine for sending messages and requests to the NIC, but we also need to have events published from the NIC to the driver. The NotifyQ handles this for us, using the same interrupt as AdminQ. Signed-off-by: Shannon Nelson <snelson@pensando.io> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-09-05ionic: Add adminq actionShannon Nelson2-0/+118
Add AdminQ specific message requests and completion handling. Signed-off-by: Shannon Nelson <snelson@pensando.io> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-09-05ionic: Add basic adminq supportShannon Nelson10-0/+941
Most of the NIC configuration happens through the AdminQ message queue. NAPI is used for basic interrupt handling and message queue management. These routines are set up to be shared among different types of queues when used in slow-path handling. Signed-off-by: Shannon Nelson <snelson@pensando.io> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-09-05ionic: Add interrupts and doorbellsShannon Nelson8-0/+91
The ionic interrupt model is based on interrupt control blocks accessed through the PCI BAR. Doorbell registers are used by the driver to signal to the NIC that requests are waiting on the message queues. Interrupts are used by the NIC to signal to the driver that answers are waiting on the completion queues. Signed-off-by: Shannon Nelson <snelson@pensando.io> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-09-05ionic: Add basic lif supportShannon Nelson11-1/+477
The LIF is the Logical Interface, which represents the external connections. The NIC can multiplex many LIFs to a single port, but in most setups, LIF0 is the primary control for the port. Signed-off-by: Shannon Nelson <snelson@pensando.io> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-09-05ionic: Add port management commandsShannon Nelson5-0/+213
The port management commands apply to the physical port associated with the PCI device, which might be shared among several logical interfaces. Signed-off-by: Shannon Nelson <snelson@pensando.io> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-09-05ionic: Add hardware init and device commandsShannon Nelson13-2/+3481
The ionic device has a small set of PCI registers, including a device control and data space, and a large set of message commands. Also adds new DEVLINK_INFO_VERSION_GENERIC tags for ASIC_ID, ASIC_REV, and FW. Signed-off-by: Shannon Nelson <snelson@pensando.io> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-09-05ionic: Add basic framework for IONIC Network device driverShannon Nelson14-0/+272
This patch adds a basic driver framework for the Pensando IONIC network device. There is no functionality right now other than the ability to load and unload. Signed-off-by: Shannon Nelson <snelson@pensando.io> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-09-05devlink: Add new info version tags for ASIC and FWShannon Nelson2-0/+23
The current tag set is still rather small and needs a couple more tags to help with ASIC identification and to have a more generic FW version. Cc: Jiri Pirko <jiri@resnulli.us> Acked-by: Jakub Kicinski <jakub.kicinski@netronome.com> Signed-off-by: Shannon Nelson <snelson@pensando.io> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-09-05net: dsa: mt7530: Add support for port 5René van Dorst2-6/+168
Adding support for port 5. Port 5 can muxed/interface to: - internal 5th GMAC of the switch; can be used as 2nd CPU port or as extra port with an external phy for a 6th ethernet port. - internal PHY of port 0 or 4; Used in most applications so that port 0 or 4 is the WAN port and interfaces with the 2nd GMAC of the SOC. Signed-off-by: René van Dorst <opensource@vdorst.com> Tested-by: Frank Wunderlich <frank-w@public-files.de> Acked-by: Russell King <rmk+kernel@armlinux.org.uk> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-09-05dt-bindings: net: dsa: mt7530: Add support for port 5René van Dorst1-0/+214
MT7530 port 5 has many modes/configurations. Update the documentation how to use port 5. Signed-off-by: René van Dorst <opensource@vdorst.com> Cc: devicetree@vger.kernel.org Cc: Rob Herring <robh@kernel.org> Reviewed-by: Rob Herring <robh@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-09-05net: dsa: mt7530: Convert to PHYLINK APIRené van Dorst2-87/+211
Convert mt7530 to PHYLINK API Signed-off-by: René van Dorst <opensource@vdorst.com> Tested-by: Frank Wunderlich <frank-w@public-files.de> Acked-by: Russell King <rmk+kernel@armlinux.org.uk> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-09-05r8152: modify rtl8152_set_speed functionHayes Wang1-64/+132
First, for AUTONEG_DISABLE, we only need to modify MII_BMCR. Second, add advertising parameter for rtl8152_set_speed(). Add RTL_ADVERTISED_xxx for advertising parameter of rtl8152_set_speed(). Then, the advertising settings from ethtool could be saved. Signed-off-by: Hayes Wang <hayeswang@realtek.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-09-05dpaa2-eth: Poll Tx pending frames counter on if downIoana Radulescu1-3/+28
Starting with firmware version MC10.18.0, a new counter for in flight Tx frames is offered. Use it when bringing down the interface to determine when all pending Tx frames have been processed by hardware instead of sleeping a fixed amount of time. Signed-off-by: Ioana Radulescu <ruxandra.radulescu@nxp.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-09-05dpaa2-eth: Add new DPNI statistics countersIoana Radulescu3-3/+58
Recent firmware versions expose more DPNI counters. Export relevant ones via ethtool -S. Signed-off-by: Ioana Radulescu <ruxandra.radulescu@nxp.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-09-05dpaa2-eth: Minor refactoring in ethtool statsIoana Radulescu1-11/+7
As we prepare to read more pages from the DPNI stat counters, reorganize the code a bit to make it easier to extend. Signed-off-by: Ioana Radulescu <ruxandra.radulescu@nxp.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-09-04can: add support of SAE J1939 protocolThe j1939 authors15-0/+5055
SAE J1939 is the vehicle bus recommended practice used for communication and diagnostics among vehicle components. Originating in the car and heavy-duty truck industry in the United States, it is now widely used in other parts of the world. J1939, ISO 11783 and NMEA 2000 all share the same high level protocol. SAE J1939 can be considered the replacement for the older SAE J1708 and SAE J1587 specifications. Acked-by: Oliver Hartkopp <socketcan@hartkopp.net> Signed-off-by: Bastian Stender <bst@pengutronix.de> Signed-off-by: Elenita Hinds <ecathinds@gmail.com> Signed-off-by: kbuild test robot <lkp@intel.com> Signed-off-by: Kurt Van Dijck <dev.kurt@vandijck-laurijssen.be> Signed-off-by: Maxime Jayat <maxime.jayat@mobile-devices.fr> Signed-off-by: Robin van der Gracht <robin@protonic.nl> Signed-off-by: Oleksij Rempel <o.rempel@pengutronix.de> Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
2019-09-04can: extend sockaddr_can to include j1939 membersKurt Van Dijck1-0/+17
This patch prepares struct sockaddr_can for SAE J1939. Signed-off-by: Kurt Van Dijck <dev.kurt@vandijck-laurijssen.be> Signed-off-by: Oleksij Rempel <o.rempel@pengutronix.de> Acked-by: Oliver Hartkopp <socketcan@hartkopp.net> Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
2019-09-04can: add socket type for CAN_J1939Kurt Van Dijck1-1/+2
This patch is a preparation for SAE J1939 and adds CAN_J1939 socket type. Signed-off-by: Kurt Van Dijck <dev.kurt@vandijck-laurijssen.be> Signed-off-by: Oleksij Rempel <o.rempel@pengutronix.de> Acked-by: Oliver Hartkopp <socketcan@hartkopp.net> Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
2019-09-04can: introduce CAN_REQUIRED_SIZE macroKurt Van Dijck3-4/+12
The size of this structure will be increased with J1939 support. To stay binary compatible, the CAN_REQUIRED_SIZE macro is introduced for existing CAN protocols. Signed-off-by: Kurt Van Dijck <dev.kurt@vandijck-laurijssen.be> Signed-off-by: Oleksij Rempel <o.rempel@pengutronix.de> Acked-by: Oliver Hartkopp <socketcan@hartkopp.net> Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
2019-09-04mailmap: update email addressKurt Van Dijck1-0/+1
This commit replaces my company's email address with a stable private address. Signed-off-by: Kurt Van Dijck <dev.kurt@vandijck-laurijssen.be> Signed-off-by: Oleksij Rempel <o.rempel@pengutronix.de> Acked-by: Oliver Hartkopp <socketcan@hartkopp.net> Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
2019-09-04can: af_can: use spin_lock_bh() for &net->can.rcvlists_lockOleksij Rempel1-4/+4
The can_rx_unregister() can be called from NAPI (soft IRQ) context, at least by j1939 stack. This leads to potential dead lock with &net->can.rcvlists_lock called from can_rx_register: =============================================================================== WARNING: inconsistent lock state 4.19.0-20181029-1-g3e67f95ba0d3 #3 Not tainted -------------------------------- inconsistent {SOFTIRQ-ON-W} -> {IN-SOFTIRQ-W} usage. testj1939/224 [HC0[0]:SC1[1]:HE1:SE0] takes: 1ad0fda3 (&(&net->can.rcvlists_lock)->rlock){+.?.}, at: can_rx_unregister+0x4c/0x1ac {SOFTIRQ-ON-W} state was registered at: lock_acquire+0xd0/0x1f4 _raw_spin_lock+0x30/0x40 can_rx_register+0x5c/0x14c j1939_netdev_start+0xdc/0x1f8 j1939_sk_bind+0x18c/0x1c8 __sys_bind+0x70/0xb0 sys_bind+0x10/0x14 ret_fast_syscall+0x0/0x28 0xbedc9b64 irq event stamp: 2440 hardirqs last enabled at (2440): [<c01302c0>] __local_bh_enable_ip+0xac/0x184 hardirqs last disabled at (2439): [<c0130274>] __local_bh_enable_ip+0x60/0x184 softirqs last enabled at (2412): [<c08b0bf4>] release_sock+0x84/0xa4 softirqs last disabled at (2415): [<c013055c>] irq_exit+0x100/0x1b0 other info that might help us debug this: Possible unsafe locking scenario: CPU0 ---- lock(&(&net->can.rcvlists_lock)->rlock); <Interrupt> lock(&(&net->can.rcvlists_lock)->rlock); *** DEADLOCK *** 2 locks held by testj1939/224: #0: 168eb13b (rcu_read_lock){....}, at: netif_receive_skb_internal+0x3c/0x350 #1: 168eb13b (rcu_read_lock){....}, at: can_receive+0x88/0x1c0 =============================================================================== To avoid this situation, we should use spin_lock_bh() instead of spin_lock(). Signed-off-by: Oleksij Rempel <o.rempel@pengutronix.de> Acked-by: Oliver Hartkopp <socketcan@hartkopp.net> Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
2019-09-04can: af_can: remove NULL-ptr checks from users of can_dev_rcv_lists_find()Marc Kleine-Budde1-29/+16
Since using the "struct can_ml_priv" for the per device "struct dev_rcv_lists" the call can_dev_rcv_lists_find() cannot fail anymore. This patch simplifies af_can by removing the NULL pointer checks from the dev_rcv_lists returned by can_dev_rcv_lists_find(). Signed-off-by: Oleksij Rempel <o.rempel@pengutronix.de> Acked-by: Oliver Hartkopp <socketcan@hartkopp.net> Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
2019-09-04can: make use of preallocated can_ml_priv for per device struct can_dev_rcv_listsMarc Kleine-Budde6-39/+12
This patch removes the old method of allocating the per device protocol specific memory via a netdevice_notifier. This had the drawback, that the allocation can fail, leading to a lot of null pointer checks in the code. This also makes the live cycle management of this memory quite complicated. This patch switches from the allocating the struct can_dev_rcv_lists in a NETDEV_REGISTER call to using the dev->ml_priv, which is allocated by the driver since the previous patch. Signed-off-by: Oleksij Rempel <o.rempel@pengutronix.de> Acked-by: Oliver Hartkopp <socketcan@hartkopp.net> Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
2019-09-04can: introduce CAN midlayer private and allocate it automaticallyMarc Kleine-Budde8-23/+96
This patch introduces the CAN midlayer private structure ("struct can_ml_priv") which should be used to hold protocol specific per device data structures. For now it's only member is "struct can_dev_rcv_lists". The CAN midlayer private is allocated via alloc_netdev()'s private and assigned to "struct net_device::ml_priv" during device creation. This is done transparently for CAN drivers using alloc_candev(). The slcan, vcan and vxcan drivers which are not using alloc_candev() have been adopted manually. The memory layout of the netdev_priv allocated via alloc_candev() will looke like this: +-------------------------+ | driver's priv | +-------------------------+ | struct can_ml_priv | +-------------------------+ | array of struct sk_buff | +-------------------------+ Signed-off-by: Oleksij Rempel <o.rempel@pengutronix.de> Signed-off-by: Oliver Hartkopp <socketcan@hartkopp.net> Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
2019-09-04can: af_can: can_pernet_exit(): no need to iterate over and cleanup registered CAN devicesMarc Kleine-Budde1-15/+0
The networking core takes care and unregisters every network device in a namespace before calling the can_pernet_exit() hook. This patch removes the unneeded cleanup. Acked-by: Oliver Hartkopp <socketcan@hartkopp.net> Suggested-by: Kirill Tkhai <ktkhai@virtuozzo.com> Signed-off-by: Oleksij Rempel <o.rempel@pengutronix.de> Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
2019-09-04can: af_can: can_rx_register(): use max() instead of open coding itMarc Kleine-Budde1-2/+2
This patch replaces an open coded max by the proper kernel define max(). Acked-by: Oliver Hartkopp <socketcan@hartkopp.net> Signed-off-by: Oleksij Rempel <o.rempel@pengutronix.de> Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
2019-09-04can: af_can: give variable holding the CAN receiver and the receiver list a sensible nameMarc Kleine-Budde1-51/+50
This patch gives the variables holding the CAN receiver and the receiver list a better name by renaming them from "r to "rcv" and "rl" to "recv_list". Signed-off-by: Oleksij Rempel <o.rempel@pengutronix.de> Acked-by: Oliver Hartkopp <socketcan@hartkopp.net> Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
2019-09-04can: af_can: rename find_dev_rcv_lists() to can_dev_rcv_lists_find()Marc Kleine-Budde1-5/+5
This patch add the commonly used prefix "can_" to the find_dev_rcv_lists() function and moves the "find" to the end, as the function returns a struct can_dev_rcv_list. This improves the overall readability of the code. Signed-off-by: Oleksij Rempel <o.rempel@pengutronix.de> Acked-by: Oliver Hartkopp <socketcan@hartkopp.net> Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
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