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2016-05-04net/mlx5e: Fix aRFS compilation dependencyMaor Gottlieb
en_arfs.o should be compiled only if both CONFIG_MLX5_CORE_EN and CONFIG_RFS_ACCEL are enabled. en_arfs calls to rps_may_expire_flow which is compiled only if CONFIG_RFS_ACCEL is defined. Move en_arfs.o compilation dependency to be under CONFIG_MLX5_CORE_EN and wrap the en_arfs.c content with ifdef of CONFIG_RFS_ACCEL. Fixes: 1cabe6b0965e ('net/mlx5e: Create aRFS flow tables') Signed-off-by: Maor Gottlieb <maorg@mellanox.com> Reported-by: Alexei Starovoitov <alexei.starovoitov@gmail.com> Signed-off-by: Saeed Mahameed <saeedm@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-05-04Merge branch 'cxgb4-mbox'David S. Miller
Hariprasad Shenai says: ==================== cxgb4: mbox enhancements for cxgb4 This patch series checks for firmware errors when we are waiting for mbox response in a loop and breaks out. When negative timeout is passed to mailbox code, don't sleep. Negative timeout is passed only from interrupt context. This patch series has been created against net-next tree and includes patches on cxgb4 driver. We have included all the maintainers of respective drivers. Kindly review the change and let us know in case of any review comments. ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
2016-05-04cxgb4: Check for firmware errors in the mailbox command loopHariprasad Shenai
Check for firmware errors in the mailbox command loop and report them differently rather than simply timing out when the firmware goes belly up. Signed-off-by: Hariprasad Shenai <hariprasad@chelsio.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-05-04cxgb4: Don't sleep when mbox cmd is issued from interrupt contextHariprasad Shenai
When link goes down, from the interrupt handler DCB priority for the Tx queues needs to be unset. We issue mbox command to unset the Tx queue priority with negative timeout. In t4_wr_mbox_meat_timeout() do not sleep when negative timeout is passed, since it is called from interrupt context. Signed-off-by: Hariprasad Shenai <hariprasad@chelsio.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-05-04drivers: net: emac: add Atheros AR8035 phy initialization codeChristian Lamparter
This patch adds the phy initialization code for Qualcomm Atheros AR8035 phy. This configuration is found in the Cisco Meraki MR24. Signed-off-by: Christian Lamparter <chunkeey@googlemail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-05-04Merge branch 'tunnel-features-and-gso-partial'David S. Miller
Alexander Duyck says: ==================== Fix Tunnel features and enable GSO partial for several drivers This patch series is meant to allow us to get the best performance possible for Mellanox ConnectX-3/4 and Broadcom NetXtreme-C/E adapters in terms of VXLAN and GRE tunnels. The first 3 patches address issues I found in regards to GSO_PARTIAL and TSO_MANGLEID. The next 4 patches go through and enable GSO_PARTIAL for VXLAN tunnels that have an outer checksum enabled, and then enable IPv6 support where I can. One outstanding issue is that I wasn't able to get offloads working with outer IPv6 headers on mlx4. However that wasn't a feature that was enabled before so it isn't technically a regression, however I believe Engineers from Mellanox said they would look into it since they thought it should be supported. The last patch enables GSO_PARTIAL for VXLAN and GRE tunnels on the bnxt driver. One piece of feedback I received on the patch was that the hardware has globally set IPv6 UDP tunnels to always have the checksum field computed. I plan to work with Broadcom to get that addressed so that we only populate the checksum field if it was requested by the network stack. v2: Rebased patches off of latest changes to the mlx4/mlx5 drivers. Added bnxt driver patch as I received feedback on the RFC. v3: Moved 2 patches into series for net as they were generic fixes. Added patch to disable GSO partial if frame is less than 2x size of MSS There are outstanding issues as called out above that need to be addressed, however they were present before these patches so it isn't as if they introduce a regression. In addition gains can be easily seen so there should be no issue with applying the driver patches while the IPv6 mlx4_en and bnxt issues are being researched. ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
2016-05-04bnxt: Add support for segmentation of tunnels with outer checksumsAlexander Duyck
This patch assumes that the bnxt hardware will ignore existing IPv4/v6 header fields for length and checksum as well as the length and checksum fields for outer UDP and GRE headers. I have been told by Michael Chan that this is working. Though this might be somewhat redundant for IPv6 as they are forcing the checksum to be computed for all IPv6 frames that are offloaded. A follow-up patch may be necessary in order to fix this as it is essentially mangling the outer IPv6 headers to add a checksum where none was requested. Signed-off-by: Alexander Duyck <aduyck@mirantis.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-05-04net/mlx5e: Fix IPv6 tunnel checksum offloadAlexander Duyck
The mlx5 driver exposes support for TSO6 but not IPv6 csum for hardware encapsulated tunnels. This leads to issues as it triggers warnings in skb_checksum_help as it ends up being called as we report supporting the segmentation but not the checksumming for IPv6 frames. This patch corrects that and drops 2 features that don't actually need to be supported in hw_enc_features since they are Rx features and don't actually impact anything by being present in hw_enc_features. Signed-off-by: Alexander Duyck <aduyck@mirantis.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-05-04net/mlx5e: Add support for UDP tunnel segmentation with outer checksum offloadAlexander Duyck
This patch assumes that the mlx5 hardware will ignore existing IPv4/v6 header fields for length and checksum as well as the length and checksum fields for outer UDP headers. Signed-off-by: Alexander Duyck <aduyck@mirantis.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-05-04net/mlx4_en: Add support for inner IPv6 checksum offloads and TSOAlexander Duyck
>From what I can tell the ConnectX-3 will support an inner IPv6 checksum and segmentation offload, however it cannot support outer IPv6 headers. This assumption is based on the fact that I could see the checksum being offloaded for inner header on IPv4 tunnels, but not on IPv6 tunnels. For this reason I am adding the feature to the hw_enc_features and adding an extra check to the features_check call that will disable GSO and checksum offload in the case that the encapsulated frame has an outer IP version of that is not 4. The check in mlx4_en_features_check could be removed if at some point in the future a fix is found that allows the hardware to offload segmentation/checksum on tunnels with an outer IPv6 header. Signed-off-by: Alexander Duyck <aduyck@mirantis.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-05-04net/mlx4_en: Add support for UDP tunnel segmentation with outer checksum offloadAlexander Duyck
This patch assumes that the mlx4 hardware will ignore existing IPv4/v6 header fields for length and checksum as well as the length and checksum fields for outer UDP headers. Signed-off-by: Alexander Duyck <aduyck@mirantis.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-05-04net: Fix netdev_fix_features so that TSO_MANGLEID is only available with TSOAlexander Duyck
This change makes it so that we will strip the TSO_MANGLEID bit if TSO is not present. This way we will also handle ECN correctly of TSO is not present. Signed-off-by: Alexander Duyck <aduyck@mirantis.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-05-04gso: Only allow GSO_PARTIAL if we can checksum the inner protocolAlexander Duyck
This patch addresses a possible issue that can occur if we get into any odd corner cases where we support TSO for a given protocol but not the checksum or scatter-gather offload. There are few drivers floating around that setup their tunnels this way and by enforcing the checksum piece we can avoid mangling any frames. Signed-off-by: Alexander Duyck <aduyck@mirantis.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-05-04gso: Do not perform partial GSO if number of partial segments is 1 or lessAlexander Duyck
In the event that the number of partial segments is equal to 1 we don't really need to perform partial segmentation offload. As such we should skip multiplying the MSS and instead just clear the partial_segs value since it will not provide any gain to advertise the frame as being GSO when it is a single frame. Signed-off-by: Alexander Duyck <aduyck@mirantis.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-05-04gre: change gre_parse_header to return the header lengthJiri Benc
It's easier for gre_parse_header to return the header length instead of filing it into a parameter. That way, the callers that don't care about the header length can just check whether the returned value is lower than zero. In gre_err, the tunnel header must not be pulled. See commit b7f8fe251e46 ("gre: do not pull header in ICMP error processing") for details. This patch reduces the conflict between the mentioned commit and commit 95f5c64c3c13 ("gre: Move utility functions to common headers"). Signed-off-by: Jiri Benc <jbenc@redhat.com> Acked-by: Tom Herbert <tom@herbertland.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-05-04tcp: guarantee forward progress in tcp_sendmsg()Eric Dumazet
Under high rx pressure, it is possible tcp_sendmsg() never has a chance to allocate an skb and loop forever as sk_flush_backlog() would always return true. Fix this by calling sk_flush_backlog() only if one skb had been allocated and filled before last backlog check. Fixes: d41a69f1d390 ("tcp: make tcp_sendmsg() aware of socket backlog") Signed-off-by: Eric Dumazet <edumazet@google.com> Acked-by: Soheil Hassas Yeganeh <soheil@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-05-04Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/netDavid S. Miller
Conflicts: net/ipv4/ip_gre.c Minor conflicts between tunnel bug fixes in net and ipv6 tunnel cleanups in net-next. Signed-off-by: David S. Miller <davem@davemloft.net>
2016-05-03Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/netLinus Torvalds
Pull networking fixes from David Miller: "Some straggler bug fixes: 1) Batman-adv DAT must consider VLAN IDs when choosing candidate nodes, from Antonio Quartulli. 2) Fix botched reference counting of vlan objects and neigh nodes in batman-adv, from Sven Eckelmann. 3) netem can crash when it sees GSO packets, the fix is to segment then upon ->enqueue. Fix from Neil Horman with help from Eric Dumazet. 4) Fix VXLAN dependencies in mlx5 driver Kconfig, from Matthew Finlay. 5) Handle VXLAN ops outside of rcu lock, via a workqueue, in mlx5, since it can sleep. Fix also from Matthew Finlay. 6) Check mdiobus_scan() return values properly in pxa168_eth and macb drivers. From Sergei Shtylyov. 7) If the netdevice doesn't support checksumming, disable segmentation. From Alexandery Duyck. 8) Fix races between RDS tcp accept and sending, from Sowmini Varadhan. 9) In macb driver, probe MDIO bus before we register the netdev, otherwise we can try to open the device before it is really ready for that. Fix from Florian Fainelli. 10) Netlink attribute size for ILA "tunnels" not calculated properly, fix from Nicolas Dichtel" * git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: ipv6/ila: fix nlsize calculation for lwtunnel net: macb: Probe MDIO bus before registering netdev RDS: TCP: Synchronize accept() and connect() paths on t_conn_lock. RDS:TCP: Synchronize rds_tcp_accept_one with rds_send_xmit when resetting t_sock vxlan: Add checksum check to the features check function net: Disable segmentation if checksumming is not supported net: mvneta: Remove superfluous SMP function call macb: fix mdiobus_scan() error check pxa168_eth: fix mdiobus_scan() error check net/mlx5e: Use workqueue for vxlan ops net/mlx5e: Implement a mlx5e workqueue net/mlx5: Kconfig: Fix MLX5_EN/VXLAN build issue net/mlx5: Unmap only the relevant IO memory mapping netem: Segment GSO packets on enqueue batman-adv: Fix reference counting of hardif_neigh_node object for neigh_node batman-adv: Fix reference counting of vlan object for tt_local_entry batman-adv: B.A.T.M.A.N V - make sure iface is reactivated upon NETDEV_UP event batman-adv: fix DAT candidate selection (must use vid)
2016-05-03Merge branch 'for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/fuse Pull fuse fixes from Miklos Szeredi: "Fix a regression and update the MAINTAINERS entry for fuse" * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/fuse: fuse: update mailing list in MAINTAINERS fuse: Fix return value from fuse_get_user_pages()
2016-05-03ipv6/ila: fix nlsize calculation for lwtunnelNicolas Dichtel
The handler 'ila_fill_encap_info' adds one attribute: ILA_ATTR_LOCATOR. Fixes: 65d7ab8de582 ("net: Identifier Locator Addressing module") CC: Tom Herbert <tom@herbertland.com> Signed-off-by: Nicolas Dichtel <nicolas.dichtel@6wind.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-05-03ipv6: add new struct ipcm6_cookieWei Wang
In the sendmsg function of UDP, raw, ICMP and l2tp sockets, we use local variables like hlimits, tclass, opt and dontfrag and pass them to corresponding functions like ip6_make_skb, ip6_append_data and xxx_push_pending_frames. This is not a good practice and makes it hard to add new parameters. This fix introduces a new struct ipcm6_cookie similar to ipcm_cookie in ipv4 and include the above mentioned variables. And we only pass the pointer to this structure to corresponding functions. This makes it easier to add new parameters in the future and makes the function cleaner. Signed-off-by: Wei Wang <weiwan@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-05-03net: macb: Probe MDIO bus before registering netdevFlorian Fainelli
The current sequence makes us register for a network device prior to registering and probing the MDIO bus which could lead to some unwanted consequences, like a thread of execution calling into ndo_open before register_netdev() returns, while the MDIO bus is not ready yet. Rework the sequence to register for the MDIO bus, and therefore attach to a PHY prior to calling register_netdev(), which implies reworking the error path a bit. Signed-off-by: Florian Fainelli <f.fainelli@gmail.com> Acked-by: Nicolas Ferre <nicolas.ferre@atmel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-05-03Merge branch 'rds-fixes'David S. Miller
Sowmini Varadhan says: ==================== RDS: TCP: sychronization during connection startup This patch series ensures that the passive (accept) side of the TCP connection used for RDS-TCP is correctly synchronized with any concurrent active (connect) attempts for a given pair of peers. Patch 1 in the series makes sure that the t_sock in struct rds_tcp_connection is only reset after any threads in rds_tcp_xmit have completed (otherwise a null-ptr deref may be encountered). Patch 2 synchronizes rds_tcp_accept_one() with the rds_tcp*connect() path. v2: review comments from Santosh Shilimkar, other spelling corrections ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
2016-05-03RDS: TCP: Synchronize accept() and connect() paths on t_conn_lock.Sowmini Varadhan
An arbitration scheme for duelling SYNs is implemented as part of commit 241b271952eb ("RDS-TCP: Reset tcp callbacks if re-using an outgoing socket in rds_tcp_accept_one()") which ensures that both nodes involved will arrive at the same arbitration decision. However, this needs to be synchronized with an outgoing SYN to be generated by rds_tcp_conn_connect(). This commit achieves the synchronization through the t_conn_lock mutex in struct rds_tcp_connection. The rds_conn_state is checked in rds_tcp_conn_connect() after acquiring the t_conn_lock mutex. A SYN is sent out only if the RDS connection is not already UP (an UP would indicate that rds_tcp_accept_one() has completed 3WH, so no SYN needs to be generated). Similarly, the rds_conn_state is checked in rds_tcp_accept_one() after acquiring the t_conn_lock mutex. The only acceptable states (to allow continuation of the arbitration logic) are UP (i.e., outgoing SYN was SYN-ACKed by peer after it sent us the SYN) or CONNECTING (we sent outgoing SYN before we saw incoming SYN). Signed-off-by: Sowmini Varadhan <sowmini.varadhan@oracle.com> Acked-by: Santosh Shilimkar <santosh.shilimkar@oracle.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-05-03RDS:TCP: Synchronize rds_tcp_accept_one with rds_send_xmit when resetting t_sockSowmini Varadhan
There is a race condition between rds_send_xmit -> rds_tcp_xmit and the code that deals with resolution of duelling syns added by commit 241b271952eb ("RDS-TCP: Reset tcp callbacks if re-using an outgoing socket in rds_tcp_accept_one()"). Specifically, we may end up derefencing a null pointer in rds_send_xmit if we have the interleaving sequence: rds_tcp_accept_one rds_send_xmit conn is RDS_CONN_UP, so invoke rds_tcp_xmit tc = conn->c_transport_data rds_tcp_restore_callbacks /* reset t_sock */ null ptr deref from tc->t_sock The race condition can be avoided without adding the overhead of additional locking in the xmit path: have rds_tcp_accept_one wait for rds_tcp_xmit threads to complete before resetting callbacks. The synchronization can be done in the same manner as rds_conn_shutdown(). First set the rds_conn_state to something other than RDS_CONN_UP (so that new threads cannot get into rds_tcp_xmit()), then wait for RDS_IN_XMIT to be cleared in the conn->c_flags indicating that any threads in rds_tcp_xmit are done. Fixes: 241b271952eb ("RDS-TCP: Reset tcp callbacks if re-using an outgoing socket in rds_tcp_accept_one()") Signed-off-by: Sowmini Varadhan <sowmini.varadhan@oracle.com> Acked-by: Santosh Shilimkar <santosh.shilimkar@oracle.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-05-03net: add __sock_wfree() helperEric Dumazet
Hosts sending lot of ACK packets exhibit high sock_wfree() cost because of cache line miss to test SOCK_USE_WRITE_QUEUE We could move this flag close to sk_wmem_alloc but it is better to perform the atomic_sub_and_test() on a clean cache line, as it avoid one extra bus transaction. skb_orphan_partial() can also have a fast track for packets that either are TCP acks, or already went through another skb_orphan_partial() Signed-off-by: Eric Dumazet <edumazet@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-05-03Merge branch 'tunnel-csum-and-sg-offloads'David S. Miller
Alexander Duyck says: ==================== Fixes for tunnel checksum and segmentation offloads This patch series is a subset of patches I had submitted for net-next. I plan to drop these two patches from the v3 of "Fix Tunnel features and enable GSO partial for several drivers" and I am instead submitting them for net since these are truly fixes and likely will need to be backported to stable branches. This series addresses 2 specific issues. The first is that we could request TSO on a v4 inner header while not supporting checksum offload of the outer IPv6 header. The second is that we could request an IPv6 inner checksum offload without validating that we could actually support an inner IPv6 checksum offload. ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
2016-05-03vxlan: Add checksum check to the features check functionAlexander Duyck
We need to perform an additional check on the inner headers to determine if we can offload the checksum for them. Previously this check didn't occur so we would generate an invalid frame in the case of an IPv6 header encapsulated inside of an IPv4 tunnel. To fix this I added a secondary check to vxlan_features_check so that we can verify that we can offload the inner checksum. Signed-off-by: Alexander Duyck <aduyck@mirantis.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-05-03net: Disable segmentation if checksumming is not supportedAlexander Duyck
In the case of the mlx4 and mlx5 driver they do not support IPv6 checksum offload for tunnels. With this being the case we should disable GSO in addition to the checksum offload features when we find that a device cannot perform a checksum on a given packet type. Signed-off-by: Alexander Duyck <aduyck@mirantis.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-05-03Merge branch 'tipc-next'David S. Miller
Jon Maloy says: ==================== tipc: redesign socket-level flow control The socket-level flow control in TIPC has long been due for a major overhaul. This series fixes this. ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
2016-05-03tipc: redesign connection-level flow controlJon Paul Maloy
There are two flow control mechanisms in TIPC; one at link level that handles network congestion, burst control, and retransmission, and one at connection level which' only remaining task is to prevent overflow in the receiving socket buffer. In TIPC, the latter task has to be solved end-to-end because messages can not be thrown away once they have been accepted and delivered upwards from the link layer, i.e, we can never permit the receive buffer to overflow. Currently, this algorithm is message based. A counter in the receiving socket keeps track of number of consumed messages, and sends a dedicated acknowledge message back to the sender for each 256 consumed message. A counter at the sending end keeps track of the sent, not yet acknowledged messages, and blocks the sender if this number ever reaches 512 unacknowledged messages. When the missing acknowledge arrives, the socket is then woken up for renewed transmission. This works well for keeping the message flow running, as it almost never happens that a sender socket is blocked this way. A problem with the current mechanism is that it potentially is very memory consuming. Since we don't distinguish between small and large messages, we have to dimension the socket receive buffer according to a worst-case of both. I.e., the window size must be chosen large enough to sustain a reasonable throughput even for the smallest messages, while we must still consider a scenario where all messages are of maximum size. Hence, the current fix window size of 512 messages and a maximum message size of 66k results in a receive buffer of 66 MB when truesize(66k) = 131k is taken into account. It is possible to do much better. This commit introduces an algorithm where we instead use 1024-byte blocks as base unit. This unit, always rounded upwards from the actual message size, is used when we advertise windows as well as when we count and acknowledge transmitted data. The advertised window is based on the configured receive buffer size in such a way that even the worst-case truesize/msgsize ratio always is covered. Since the smallest possible message size (from a flow control viewpoint) now is 1024 bytes, we can safely assume this ratio to be less than four, which is the value we are now using. This way, we have been able to reduce the default receive buffer size from 66 MB to 2 MB with maintained performance. In order to keep this solution backwards compatible, we introduce a new capability bit in the discovery protocol, and use this throughout the message sending/reception path to always select the right unit. Acked-by: Ying Xue <ying.xue@windriver.com> Signed-off-by: Jon Maloy <jon.maloy@ericsson.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-05-03tipc: propagate peer node capabilities to socket layerJon Paul Maloy
During neighbor discovery, nodes advertise their capabilities as a bit map in a dedicated 16-bit field in the discovery message header. This bit map has so far only be stored in the node structure on the peer nodes, but we now see the need to keep a copy even in the socket structure. This commit adds this functionality. Acked-by: Ying Xue <ying.xue@windriver.com> Signed-off-by: Jon Maloy <jon.maloy@ericsson.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-05-03tipc: re-enable compensation for socket receive buffer double countingJon Paul Maloy
In the refactoring commit d570d86497ee ("tipc: enqueue arrived buffers in socket in separate function") we did by accident replace the test if (sk->sk_backlog.len == 0) atomic_set(&tsk->dupl_rcvcnt, 0); with if (sk->sk_backlog.len) atomic_set(&tsk->dupl_rcvcnt, 0); This effectively disables the compensation we have for the double receive buffer accounting that occurs temporarily when buffers are moved from the backlog to the socket receive queue. Until now, this has gone unnoticed because of the large receive buffer limits we are applying, but becomes indispensable when we reduce this buffer limit later in this series. We now fix this by inverting the mentioned condition. Acked-by: Ying Xue <ying.xue@windriver.com> Signed-off-by: Jon Maloy <jon.maloy@ericsson.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-05-03rtl8152: correct speed testingOliver Neukum
Allow for SS+ USB Signed-off-by: Oliver Neukum <ONeukum@suse.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-05-03usbnet: correct speed testingOliver Neukum
Allow for SS+ USB Signed-off-by: Oliver Neukum <ONeukum@suse.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-05-03brcm80211: correct speed testingOliver Neukum
Allow for SS+ USB Signed-off-by: Oliver Neukum <ONeukum@suse.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-05-03qed: Apply tunnel configurations after PF startManish Chopra
Configure and enable various tunnels on the adapter after PF start. This change was missed as a part of 'commit 464f664501816ef5fbbc00b8de96f4ae5a1c9325 ("qed: Add infrastructure support for tunneling")' Signed-off-by: Manish Chopra <manish.chopra@qlogic.com> Signed-off-by: Yuval Mintz <yuval.mintz@qlogic.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-05-03net: mvneta: Remove superfluous SMP function callAnna-Maria Gleixner
Since commit 3b9d6da67e11 ("cpu/hotplug: Fix rollback during error-out in __cpu_disable()") it is ensured that callbacks of CPU_ONLINE and CPU_DOWN_PREPARE are processed on the hotplugged CPU. Due to this SMP function calls are no longer required. Replace smp_call_function_single() with a direct call to mvneta_percpu_enable() or mvneta_percpu_disable(). The functions do not require to be called with interrupts disabled, therefore the smp_call_function_single() calling convention is not preserved. Cc: Thomas Petazzoni <thomas.petazzoni@free-electrons.com> Cc: netdev@vger.kernel.org Signed-off-by: Anna-Maria Gleixner <anna-maria@linutronix.de> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-05-03Merge branch 'stmmac-dwmac-socfpga-cleanup'David S. Miller
Joachim Eastwood says: ==================== stmmac: dwmac-socfpga refactor+cleanup This patch aims to remove the init/exit callbacks from the dwmac- socfpga driver and instead use standard PM callbacks. Doing this will also allow us to cleanup the driver. Eventually the init/exit callbacks will be deprecated and removed from all drivers dwmac-* except for dwmac-generic. Drivers will be refactored to use standard PM and remove callbacks. This patch set should not change the behavior of the driver itself, it only moves code around. The only exception to this is patch number 4 which restores the resume callback behavior which was changed in the "net: stmmac: socfpga: Remove re-registration of reset controller" patch. I belive calling phy_resume() only from the resume callback and not probe is the right thing to do. Changes from v1: - Rebase on net-next One heads-up here: The first patch changes the prototype of a couple of functions used in Alexandre's "add Ethernet glue logic for stm32 chip" patch [1] and will cause build failures for dwmac-stm32.c if not fixed up! If Alexandre's patch set is applied first I will gladly rebase my patch set to account for his driver as well. [1] https://patchwork.ozlabs.org/patch/614405/ ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
2016-05-03stmmac: dwmac-socfpga: kill init() and rename setup() to set_phy_mode()Joachim Eastwood
Remove old init callback which now contains only a call to socfpga_dwmac_setup(). Also rename socfpga_dwmac_setup() to indicate what the function really does. Signed-off-by: Joachim Eastwood <manabian@gmail.com> Tested-by: Marek Vasut <marex@denx.de> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-05-03stmmac: dwmac-socfpga: call phy_resume() only in resume callbackJoachim Eastwood
Calling phy_resume() should only be need during driver resume to workaround a hardware errata. Signed-off-by: Joachim Eastwood <manabian@gmail.com> Tested-by: Marek Vasut <marex@denx.de> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-05-03stmmac: dwmac-socfpga: keep a copy of stmmac_rst in driver priv dataJoachim Eastwood
The dwmac-socfpga driver needs to control the reset usually managed by the core driver to set the PHY mode. Take a copy of the reset handle from core priv data so it can be used by the driver later. This also allow us to move reset handling into socfpga_dwmac_setup() where the code that needs it is located. Signed-off-by: Joachim Eastwood <manabian@gmail.com> Tested-by: Marek Vasut <marex@denx.de> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-05-03stmmac: dwmac-socfpga: add PM ops and resume functionJoachim Eastwood
Implement the needed PM callbacks in the driver instead of relying on the init/exit hooks in stmmac_platform. This gives the driver more flexibility in how the code is organized. Eventually the init/exit callbacks will be deprecated in favor of the standard PM callbacks and driver remove function. Signed-off-by: Joachim Eastwood <manabian@gmail.com> Tested-by: Marek Vasut <marex@denx.de> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-05-03stmmac: let remove/resume/suspend functions take device pointerJoachim Eastwood
Change stmmac_remove/resume/suspend to take a device pointer so they can be used directly by drivers that doesn't need to perform anything device specific. This lets us remove the PCI pm functions and later simplifiy the platform drivers. Signed-off-by: Joachim Eastwood <manabian@gmail.com> Tested-by: Marek Vasut <marex@denx.de> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-05-03macb: fix mdiobus_scan() error checkSergei Shtylyov
Now mdiobus_scan() returns ERR_PTR(-ENODEV) instead of NULL if the PHY device ID was read as all ones. As this was not an error before, this value should be filtered out now in this driver. Fixes: b74766a0a0fe ("phylib: don't return NULL from get_phy_device()") Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com> Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Acked-by: Nicolas Ferre <nicolas.ferre@atmel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-05-03pxa168_eth: fix mdiobus_scan() error checkSergei Shtylyov
Since mdiobus_scan() returns either an error code or NULL on error, the driver should check for both, not only for NULL, otherwise a crash is imminent... Reported-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-05-03Merge branch 'for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/jikos/hid Pull HID fixes from Jiri Kosina: "Fixes for the HID subsystem: - regression fix for Wacom driver; commit introduced in 4.6-rc1 mistakenly removed line that should be kept. Fix by Ping Cheng - two device-specific quirks, by Ping Cheng and Nazar Mokrynskyi" * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/hid: HID: wacom: add missed stylus_in_proximity line back HID: Fix boot delay for Creative SB Omni Surround 5.1 with quirk HID: wacom: Add support for DTK-1651
2016-05-03Merge tag 'clk-fixes-for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux Pull clk fix from Stephen Boyd: "One small bug fix for the imx6qp CAN clk definition that was causing failures and division by zeros in the kernel on those devices" * tag 'clk-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux: clk: imx6q: fix typo in CAN clock definition
2016-05-03Merge branch 'mlx5-fixes'David S. Miller
Saeed Mahameed says: ==================== Mellanox 100G mlx5 fixes for 4.6-rc This small series provides some bug fixes for mlx5 driver. A small bug fix for iounmap of a null pointer, which dumps a warning on some archs. One patch to fix the VXLAN/MLX5_EN dependency issue reported by Arnd. Two patches to fix the scheduling while atomic issue for ndo_add/del_vxlan_port NDOs. The first will add an internal mlx5e workqueue and the second will delegate vxlan ports add/del requests to that workqueue. Note: ('net/mlx5: Kconfig: Fix MLX5_EN/VXLAN build issue') is only needed for net and not net-next as the issue was globally fixed for all device drivers by: b7aade15485a ('vxlan: break dependency with netdev drivers') in net-next. Applied on top: f27337e16f2d ('ip_tunnel: fix preempt warning in ip tunnel creation/updating') ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
2016-05-03net/mlx5e: Use workqueue for vxlan opsMatthew Finlay
The vxlan add/delete port NDOs are called under rcu lock. The current mlx5e implementation can potentially block in these calls, which is not allowed. Move to using the mlx5e workqueue to handle these NDOs. Fixes: b3f63c3d5e2c ('net/mlx5e: Add netdev support for VXLAN tunneling') Signed-off-by: Matthew Finlay <matt@mellanox.com> Signed-off-by: Saeed Mahameed <saeedm@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>