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2016-08-23net: ena: change the return type of ena_set_push_mode() to be void.Rami Rosen1-9/+3
This patch changes the return type of ena_set_push_mode() to be void, as it always returns 0. Signed-off-by: Rami Rosen <ramirose@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-08-23net: hns: remove redundant dev_err call in hns_dsaf_get_cfg()Wei Yongjun1-12/+4
There is a error message within devm_ioremap_resource already, so remove the dev_err call to avoid redundant error message. Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-08-23cxgb4: Remove unused including <linux/version.h>Wei Yongjun1-1/+0
Remove including <linux/version.h> that don't need it. Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-08-23net: phy: xgmiitorgmii: Fix non static symbol warningWei Yongjun1-1/+1
Fixes the following sparse warning: drivers/net/phy/xilinx_gmii2rgmii.c:61:5: warning: symbol 'xgmiitorgmii_probe' was not declared. Should it be static? Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-08-23qede: Add support for Tx/Rx-only queues.Sudarsana Reddy Kalluru3-157/+297
Add provision for configuring the fastpath queues with Tx (or Rx) only functionality. Signed-off-by: Sudarsana Reddy Kalluru <sudarsana.kalluru@qlogic.com> Signed-off-by: Yuval Mintz <Yuval.Mintz@qlogic.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-08-23net: rtnetlink: Don't export empty RTAX_FEATURESPhil Sutter1-0/+2
Since the features bit field has bits for internal only use as well, it may happen that the kernel exports RTAX_FEATURES attribute with zero value which is pointless. Fix this by making sure the attribute is added only if the exported value is non-zero. Signed-off-by: Phil Sutter <phil@nwl.cc> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-08-23cxgb4: Fix issue while re-registering VF mgmt netdevHariprasad Shenai2-31/+67
When we disable SRIOV, we used to unregister the netdev but wasn't freed. But next time when the same netdev is registered, since the state was in 'NETREG_UNREGISTERED', we used to hit BUG_ON in register_netdevice, where it expects the state to be 'NETREG_UNINITIALIZED'. Alloc netdev and register them while configuring SRIOV, and free them when SRIOV is disabled. Also added a new function to setup ethernet properties instead of using ether_setup. Set carrier off by default, since we don't have to do any transmit on the interface. Fixes: 7829451c695e ("cxgb4: Add control net_device for configuring PCIe VF") Signed-off-by: Hariprasad Shenai <hariprasad@chelsio.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-08-23net-tcp: retire TFO_SERVER_WO_SOCKOPT2 configYuchung Cheng3-37/+32
TFO_SERVER_WO_SOCKOPT2 was intended for debugging purposes during Fast Open development. Remove this config option and also update/clean-up the documentation of the Fast Open sysctl. Reported-by: Piotr Jurkiewicz <piotr.jerzy.jurkiewicz@gmail.com> Signed-off-by: Yuchung Cheng <ycheng@google.com> Signed-off-by: Eric Dumazet <edumazet@google.com> Signed-off-by: Neal Cardwell <ncardwell@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-08-23xen-netback: using kfree_rcu() to simplify the codeWei Yongjun1-11/+2
The callback function of call_rcu() just calls a kfree(), so we can use kfree_rcu() instead of call_rcu() + callback function. Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-08-23liquidio: declare liquidio_set_rxcsum_command staticNicholas Mc Guire1-2/+2
liquidio_set_rxcsum_command is a local function only, no need to expose it outside of lio_main.c so declare it static and make sparse happy. Signed-off-by: Nicholas Mc Guire <hofrat@osadl.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-08-23l2tp: Refactor the codes with existing macros instead of literal numberGao Feng1-11/+9
Use PPP_ALLSTATIONS, PPP_UI, and SEND_SHUTDOWN instead of 0xff, 0x03, and 2 separately. Signed-off-by: Gao Feng <fgao@ikuai8.com> Acked-by: Guillaume Nault <g.nault@alphalink.fr> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-08-23kcm: Fix locking issueTom Herbert2-10/+23
Lock the lower socket in kcm_unattach. Release during call to strp_done since that function cancels the RX timers and work queue with sync. Also added some status information in psock reporting. Signed-off-by: Tom Herbert <tom@herbertland.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-08-23strparser: Queue work when being unpausedTom Herbert2-4/+12
When the upper layer unpauses a stream parser connection we need to queue rx_work to make sure no events are missed. Signed-off-by: Tom Herbert <tom@herbertland.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-08-23hv_netvsc: add ethtool statistics for tx packet issuesStephen Hemminger2-16/+79
Printing console messages is not helpful when system is out of memory; and can be disastrous with netconsole. Instead keep statistics of these anomalous conditions. Signed-off-by: Stephen Hemminger <sthemmin@microsoft.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-08-23hv_netvsc: report vmbus name in ethtoolStephen Hemminger2-0/+11
Make netvsc on vmbus behave more like PCI. Signed-off-by: Stephen Hemminger <sthemmin@microsoft.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-08-23hv_netvsc: make variable localStephen Hemminger1-3/+3
The variable m_ret is only used in one basic block. Signed-off-by: Stephen Hemminger <sthemmin@microsoft.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-08-23hv_netvsc: make netvsc_destroy_buf voidStephen Hemminger1-8/+6
No caller checks the return value. Signed-off-by: Stephen Hemminger <sthemmin@microsoft.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-08-23hv_netvsc: refactor completion functionStephen Hemminger1-47/+56
Break the different cases, code is cleaner if broken up Signed-off-by: Stephen Hemminger <sthemmin@microsoft.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-08-23hv_netvsc: rearrange start_xmitStephen Hemminger1-55/+51
Rearrange the transmit routine to eliminate goto's and unnecessary boolean variables. Use standard functions to test for vlan tag. Signed-off-by: Stephen Hemminger <sthemmin@microsoft.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-08-23hv_netvsc: init completion during allocStephen Hemminger1-3/+1
Move initialization to allocate where other fields are initialized. Signed-off-by: Stephen Hemminger <sthemmin@microsoft.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-08-23hv_netvsc: make device_remove voidStephen Hemminger2-3/+2
Always returns 0 and no callers check. Signed-off-by: Stephen Hemminger <sthemmin@microsoft.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-08-23hv_netvsc: use ARRAY_SIZE() for NDIS versionsStephen Hemminger1-3/+4
Don't hard code size of array of NDIS versions. Signed-off-by: Stephen Hemminger <sthemmin@microsoft.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-08-23hv_netvsc: make inline functions staticStephen Hemminger2-85/+84
Several new functions were introduced into hyperv.h but only used in one file. Move them and let compiler decide on inline. Signed-off-by: Stephen Hemminger <sthemmin@microsoft.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-08-23hv_netvsc: style cleanupsStephen Hemminger3-30/+3
Fix most of the complaints about the style of the code. Things like extra blank lines and return statements. Signed-off-by: Stephen Hemminger <sthemmin@microsoft.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-08-23hv_netvsc: use kcallocStephen Hemminger1-2/+2
Better to use kcalloc rather than kzalloc and multiply for an array. Signed-off-by: Stephen Hemminger <sthemmin@microsoft.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-08-23hv_netvsc: make RSS hash key staticStephen Hemminger2-3/+2
Signed-off-by: Stephen Hemminger <sthemmin@microsoft.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-08-23hv_netvsc: fix rtnl locking in callbackStephen Hemminger1-4/+1
The function get_netvsc_net_device had conditional locking. This was unnecessary, incorrect, but harmless. It was unnecessary since the code is only called from netlink netdev event callback where RTNL is always acquired before the callbacks are run. It was incorrect because of use of trylock and then continuing. Fix by replacing with proper assertion. Signed-off-by: Stephen Hemminger <sthemmin@microsoft.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-08-23rxrpc: Perform terminal call ACK/ABORT retransmission from conn processorDavid Howells4-4/+157
Perform terminal call ACK/ABORT retransmission in the connection processor rather than in the call processor. With this change, once last_call is set, no more incoming packets will be routed to the corresponding call or any earlier calls on that channel (call IDs must only increase on a channel on a connection). Further, if a packet's callNumber is before the last_call ID or a packet is aimed at successfully completed service call then that packet is discarded and ignored. Signed-off-by: David Howells <dhowells@redhat.com>
2016-08-23rxrpc: Calculate serial skew on packet receptionDavid Howells5-31/+43
Calculate the serial number skew in the data_ready handler when a packet has been received and a connection looked up. The skew is cached in the sk_buff's priority field. The connection highest received serial number is updated at this time also. This can be done without locks or atomic instructions because, at this point, the code is serialised by the socket. This generates more accurate skew data because if the packet is offloaded to a work queue before this is determined, more packets may come in, bumping the highest serial number and thereby increasing the apparent skew. This also removes some unnecessary atomic ops. Signed-off-by: David Howells <dhowells@redhat.com>
2016-08-23rxrpc: Set connection expiry on idle, not putDavid Howells2-27/+26
Set the connection expiry time when a connection becomes idle rather than doing this in rxrpc_put_connection(). This makes the put path more efficient (it is likely to be called occasionally whilst a connection has outstanding calls because active workqueue items needs to be given a ref). The time is also preset in the connection allocator in case the connection never gets used. Signed-off-by: David Howells <dhowells@redhat.com>
2016-08-23rxrpc: Use a tracepoint for skb accounting debuggingDavid Howells10-38/+135
Use a tracepoint to log various skb accounting points to help in debugging refcounting errors. Signed-off-by: David Howells <dhowells@redhat.com>
2016-08-23rxrpc: Drop channel number field from rxrpc_call structDavid Howells5-10/+8
Drop the channel number (channel) field from the rxrpc_call struct to reduce the size of the call struct. The field is redundant: if the call is attached to a connection, the channel can be obtained from there by AND'ing with RXRPC_CHANNELMASK. Signed-off-by: David Howells <dhowells@redhat.com>
2016-08-23rxrpc: When clearing a socket, clear the call sets in the right orderDavid Howells1-6/+6
When clearing a socket, we should clear the securing-in-progress list first, then the accept queue and last the main call tree because that's the order in which a call progresses. Not that a call should move from the accept queue to the main tree whilst we're shutting down a socket, but it a call could possibly move from sequreq to acceptq whilst we're clearing up. Signed-off-by: David Howells <dhowells@redhat.com>
2016-08-23rxrpc: Tidy up the rxrpc_call struct a bitDavid Howells5-20/+21
Do a little tidying of the rxrpc_call struct: (1) in_clientflag is no longer compared against the value that's in the packet, so keeping it in this form isn't necessary. Use a flag in flags instead and provide a pair of wrapper functions. (2) We don't read the epoch value, so that can go. (3) Move what remains of the data that were used for hashing up in the struct to be with the channel number. (4) Get rid of the local pointer. We can get at this via the socket struct and we only use this in the procfs viewer. Signed-off-by: David Howells <dhowells@redhat.com>
2016-08-23rxrpc: Remove RXRPC_CALL_PROC_BUSYDavid Howells2-7/+0
Remove RXRPC_CALL_PROC_BUSY as work queue items are now 100% non-reentrant. Signed-off-by: David Howells <dhowells@redhat.com>
2016-08-23net: ethernet: ti: cpsw: add ethtool channels supportIvan Khoronzhuk1-0/+180
These ops allow to control number of channels driver is allowed to work with at cpdma level. The maximum number of channels is 8 for rx and 8 for tx. In dual_emac mode the h/w channels are shared between two interfaces and changing number on one interface changes number of channels on another. How many channels are supported and enabled: $ ethtool -l ethX Change number of channels (up to 8) $ ethtool -L ethX rx 6 tx 6 Per-channel statistic: $ ethtool -S ethX Signed-off-by: Ivan Khoronzhuk <ivan.khoronzhuk@linaro.org> Reviewed-by: Mugunthan V N <mugunthanvnm@ti.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-08-23net: ethernet: ti: davinci_cpdma: move cpdma channel struct macroses to internalsIvan Khoronzhuk4-19/+18
Keep the driver internals in C file. Currently it's not required for drivers to know rx or tx a channel is, except create function. So correct "channel create" function, and use all channel struct macroses only for internal use. Reviewed-by: Mugunthan V N <mugunthanvnm@ti.com> Signed-off-by: Ivan Khoronzhuk <ivan.khoronzhuk@linaro.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-08-23net: ethernet: ti: cpsw: add multi queue supportIvan Khoronzhuk3-105/+210
The cpsw h/w supports up to 8 tx and 8 rx channels. This patch adds multi-queue support to the driver only, shaper configuration will be added with separate patch series. Default shaper mode, as before, priority mode, but with corrected priority order, 0 - is highest priority, 7 - lowest. The poll function handles all unprocessed channels, till all of them are free, beginning from hi priority channel. In dual_emac mode the channels are shared between two network devices, as it's with single-queue default mode. The statistic for every channel can be read with: $ ethtool -S ethX Signed-off-by: Ivan Khoronzhuk <ivan.khoronzhuk@linaro.org> Reviewed-by: Mugunthan V N <mugunthanvnm@ti.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-08-23net: ethernet: ti: davinci_cpdma: fix locking while ctrl_stopIvan Khoronzhuk1-0/+2
The interrupts shouldn't be disabled while receiving skb, but while ctrl_stop, the channels are stopped and all remaining packets are handled with netif_receive_skb(), it can cause WARN_ONCE when ctrl is stopping while not all packets were handled with NAPIs: lock_irq_save cpdma_ctlr_stop cpdma_chan_top __cpdma_chan_free cpsw_rx_handler netif_receive_skb So, split locking while ctrl stop thus interrupts are still enabled while skbs handling. It can cause WARN_ONCE in rare cases when ctrl is stopping while not all packets were handled with NAPIs. Reviewed-by: Mugunthan V N <mugunthanvnm@ti.com> Signed-off-by: Ivan Khoronzhuk <ivan.khoronzhuk@linaro.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-08-23net: ethernet: ti: davinci_cpdma: split descs num between all channelsIvan Khoronzhuk3-27/+83
Tx channels share same pool of descriptors. Thus one channel can block another if pool is emptied by one. But, the shaper should decide which channel is allowed to send packets. To avoid such impact of one channel on another, let every channel to have its own piece of pool. Signed-off-by: Ivan Khoronzhuk <ivan.khoronzhuk@linaro.org> Reviewed-by: Mugunthan V N <mugunthanvnm@ti.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-08-22net: strparser: fix strparser sk_user_data checkDave Watson1-3/+0
sk_user_data mismatch between what kcm expects (psock) and what strparser expects (strparser). Queued rx_work, for example calling strp_check_rcv after socket buffer changes, will never complete. sk_user_data is unused in strparser, so just remove the check. Signed-off-by: Dave Watson <davejwatson@fb.com> Acked-by: Tom Herbert <tom@herbertland.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-08-22qed: Fix address macrosYuval Mintz1-14/+8
Last FW submission reverted various macros into an older form, where they generate compilation warnings on some architectures. Bring back the newer macros instead. Fixes: 05fafbfb3d77 ("qed: utilize FW 8.10.10.0") Reported-by: kbuild test robot <fengguang.wu@intel.com> Signed-off-by: Yuval Mintz <Yuval.Mintz@qlogic.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-08-22net: mv88e6xxx: Enable PORT_CONTROL_FORWARD_UNKNOWN for DSA-tagged CPU portsJamie Lentin1-2/+2
Without it, a mv88e6131 switch will not forward incoming unicast packets to the CPU port. Signed-off-by: Jamie Lentin <jm@lentin.co.uk> Reviewed-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-08-22dsa: mv88e6xxx: Delete ppu timer when removing moduleAndrew Lunn1-0/+13
The PPU method of accessing PHYs makes use of a timer. Make sure this timer is deleted before unloading the driver. Reported-by: Jamie Lentin <jm@lentin.co.uk> Signed-off-by: Andrew Lunn <andrew@lunn.ch> Reviewed-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-08-22net: dsa: mv88e6xxx: Fix support for DSA tagging for older switches.Andrew Lunn3-27/+31
Older chips only support DSA tagging on the CPU port. New devices support both DSA and EDSA. The driver needs to tell the core the tag protocol to use, and configure the switch for what is available. Signed-off-by: Andrew Lunn <andrew@lunn.ch> Reviewed-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-08-22net: dsa: Allow the DSA driver to indicate the tag protocolAndrew Lunn7-8/+34
DSA drivers may drive different families of switches which need different tag protocol. Rather than hard code the tag protocol in the driver structure, have a callback for the DSA core to call. Signed-off-by: Andrew Lunn <andrew@lunn.ch> Reviewed-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-08-22net: ipconfig: Fix NULL pointer dereference on RARP/BOOTP/DHCP timeoutGeert Uytterhoeven1-1/+1
If no RARP, BOOTP, or DHCP response is received, ic_dev is never set, causing a NULL pointer dereference in ic_close_devs(): Sending DHCP requests ...... timed out! Unable to handle kernel NULL pointer dereference at virtual address 00000004 To fix this, add a check to avoid dereferencing ic_dev if it is still NULL. Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Fixes: 2647cffb2bc6fbed ("net: ipconfig: Support using "delayed" DHCP replies") Signed-off-by: David S. Miller <davem@davemloft.net>
2016-08-22cxgb4: add support for tx max rate limitingRahul Lakkireddy3-0/+105
Implement set_tx_maxrate NDO to perform per queue tx rate limiting. Signed-off-by: Rahul Lakkireddy <rahul.lakkireddy@chelsio.com> Signed-off-by: Hariprasad Shenai <hariprasad@chelsio.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-08-22cxgb4: add support for per queue tx schedulingRahul Lakkireddy3-0/+347
Add support to bind/unbind specified tx queues to/from scheduling classes. If a queue is already bound to a scheduling class, it is unbound first and then bound to a new specified class. Signed-off-by: Rahul Lakkireddy <rahul.lakkireddy@chelsio.com> Signed-off-by: Hariprasad Shenai <hariprasad@chelsio.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-08-22cxgb4: add support for tx traffic scheduling classesRahul Lakkireddy7-5/+438
Add support to create tx traffic scheduling classes with specified scheduling parameters. Return an existing class if a match is found with same scheduling parameters. Signed-off-by: Rahul Lakkireddy <rahul.lakkireddy@chelsio.com> Signed-off-by: Hariprasad Shenai <hariprasad@chelsio.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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