Commit Graph

47720 Commits

Author SHA1 Message Date
Moni Shoua 5f61385d2e net/mlx4_core: Keep VLAN/MAC tables mirrored in multifunc HA mode
Due to HW limitations, indexes to MAC and VLAN tables are always taken
from the table of the actual port. So, if a resource holds an index to
a table, it may refer to different values during the lifetime of the
resource,  unless the tables are mirrored. Also, even when
driver is not in HA mode the policy of allocating an index to these
tables is such to make sure, as much as possible, that when the time
comes the mirroring will be successful. This means that in multifunction
mode the allocation of a free index in a port's table tries to make sure
that the same index in the other's port table is also free.

Signed-off-by: Moni Shoua <monis@mellanox.com>
Reviewed-by: Jack Morgenstein <jackm@dev.mellanox.co.il>
Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-12-06 22:40:45 -05:00
Jiri Pirko b618aaa91b net: constify netif_is_* helpers net_device param
As suggested by Eric, these helpers should have const dev param.

Suggested-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-12-05 18:16:27 -05:00
Andrew Lunn 2f8364a291 WAN: HDLC: Call notifiers before and after changing device type
An HDLC device can change type when the protocol driver is changed.
Calling the notifier change allows potential users of the interface
know about this planned change, and even block it. After the change
has occurred, send a second notification to users can evaluate the new
device type etc.

Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-12-05 17:41:42 -05:00
David S. Miller f188b951f3 Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Conflicts:
	drivers/net/ethernet/renesas/ravb_main.c
	kernel/bpf/syscall.c
	net/ipv4/ipmr.c

All three conflicts were cases of overlapping changes.

Signed-off-by: David S. Miller <davem@davemloft.net>
2015-12-03 21:09:12 -05:00
Linus Torvalds 071f5d105a Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Pull networking fixes from David Miller:
 "A lot of Thanksgiving turkey leftovers accumulated, here goes:

   1) Fix bluetooth l2cap_chan object leak, from Johan Hedberg.

   2) IDs for some new iwlwifi chips, from Oren Givon.

   3) Fix rtlwifi lockups on boot, from Larry Finger.

   4) Fix memory leak in fm10k, from Stephen Hemminger.

   5) We have a route leak in the ipv6 tunnel infrastructure, fix from
      Paolo Abeni.

   6) Fix buffer pointer handling in arm64 bpf JIT,f rom Zi Shen Lim.

   7) Wrong lockdep annotations in tcp md5 support, fix from Eric
      Dumazet.

   8) Work around some middle boxes which prevent proper handling of TCP
      Fast Open, from Yuchung Cheng.

   9) TCP repair can do huge kmalloc() requests, build paged SKBs
      instead.  From Eric Dumazet.

  10) Fix msg_controllen overflow in scm_detach_fds, from Daniel
      Borkmann.

  11) Fix device leaks on ipmr table destruction in ipv4 and ipv6, from
      Nikolay Aleksandrov.

  12) Fix use after free in epoll with AF_UNIX sockets, from Rainer
      Weikusat.

  13) Fix double free in VRF code, from Nikolay Aleksandrov.

  14) Fix skb leaks on socket receive queue in tipc, from Ying Xue.

  15) Fix ifup/ifdown crach in xgene driver, from Iyappan Subramanian.

  16) Fix clearing of persistent array maps in bpf, from Daniel
      Borkmann.

  17) In TCP, for the cross-SYN case, we don't initialize tp->copied_seq
      early enough.  From Eric Dumazet.

  18) Fix out of bounds accesses in bpf array implementation when
      updating elements, from Daniel Borkmann.

  19) Fill gaps in RCU protection of np->opt in ipv6 stack, from Eric
      Dumazet.

  20) When dumping proxy neigh entries, we have to accomodate NULL
      device pointers properly, from Konstantin Khlebnikov.

  21) SCTP doesn't release all ipv6 socket resources properly, fix from
      Eric Dumazet.

  22) Prevent underflows of sch->q.qlen for multiqueue packet
      schedulers, also from Eric Dumazet.

  23) Fix MAC and unicast list handling in bnxt_en driver, from Jeffrey
      Huang and Michael Chan.

  24) Don't actively scan radar channels, from Antonio Quartulli"

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (110 commits)
  net: phy: reset only targeted phy
  bnxt_en: Setup uc_list mac filters after resetting the chip.
  bnxt_en: enforce proper storing of MAC address
  bnxt_en: Fixed incorrect implementation of ndo_set_mac_address
  net: lpc_eth: remove irq > NR_IRQS check from probe()
  net_sched: fix qdisc_tree_decrease_qlen() races
  openvswitch: fix hangup on vxlan/gre/geneve device deletion
  ipv4: igmp: Allow removing groups from a removed interface
  ipv6: sctp: implement sctp_v6_destroy_sock()
  arm64: bpf: add 'store immediate' instruction
  ipv6: kill sk_dst_lock
  ipv6: sctp: add rcu protection around np->opt
  net/neighbour: fix crash at dumping device-agnostic proxy entries
  sctp: use GFP_USER for user-controlled kmalloc
  sctp: convert sack_needed and sack_generation to bits
  ipv6: add complete rcu protection around np->opt
  bpf: fix allocation warnings in bpf maps and integer overflow
  mvebu: dts: enable IP checksum with jumbo frames for Armada 38x on Port0
  net: mvneta: enable setting custom TX IP checksum limit
  net: mvneta: fix error path for building skb
  ...
2015-12-03 16:02:46 -08:00
Linus Torvalds 2873d32ff4 Merge branch 'for-linus' of git://git.kernel.dk/linux-block
Pull block fixes from Jens Axboe:
 "A collection of fixes from this series.  The most important here is a
  regression fix for an issue that some folks would hit in blk-merge.c,
  and the NVMe queue depth limit for the screwed up Apple "nvme"
  controller.

  In more detail, this pull request contains:

   - a set of fixes for null_blk, including a fix for a few corner cases
     where we could hang the device.  From Arianna and Paolo.

   - lightnvm:
        - A build improvement from Keith.
        - Update the qemu pci id detection from Matias.
        - Error handling fixes for leaks and other little fixes from
          Sudip and Wenwei.

   - fix from Eric where BLKRRPART would not return EBUSY for whole
     device mounts, only when partitions were mounted.

   - fix from Jan Kara, where EOF O_DIRECT reads would return
     negatively.

   - remove check for rq_mergeable() when checking limits for cloned
     requests.  The check doesn't make any sense.  It's assuming that
     since NOMERGE is set on the request that we don't have to
     recalculate limits since the request didn't change, but that's not
     true if the request has been redirected.  From Hannes.

   - correctly get the bio front segment value set for single segment
     bio's, fixing a BUG() in blk-merge.  From Ming"

* 'for-linus' of git://git.kernel.dk/linux-block:
  nvme: temporary fix for Apple controller reset
  null_blk: change type of completion_nsec to unsigned long
  null_blk: guarantee device restart in all irq modes
  null_blk: set a separate timer for each command
  blk-merge: fix computing bio->bi_seg_front_size in case of single segment
  direct-io: Fix negative return from dio read beyond eof
  block: Always check queue limits for cloned requests
  lightnvm: missing nvm_lock acquire
  lightnvm: unconverted ppa returned in get_bb_tbl
  lightnvm: refactor and change vendor id for qemu
  lightnvm: do device max sectors boundary check first
  lightnvm: fix ioctl memory leaks
  lightnvm: free memory when gennvm register fails
  lightnvm: Simplify config when disabled
  Return EBUSY from BLKRRPART for mounted whole-dev fs
2015-12-03 15:45:16 -08:00
Asias He 80a19e338d VSOCK: Introduce virtio-vsock-common.ko
This module contains the common code and header files for the following
virtio-vsock and virtio-vhost kernel modules.

Signed-off-by: Asias He <asias@redhat.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-12-03 15:05:55 -05:00
Jakub Kicinski 2d1e0254ef pci_ids: add Netronome Systems vendor
Add PCI vendor id for Netronome Systems.

Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: Rolf Neugebauer <rolf.neugebauer@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-12-03 14:17:51 -05:00
Saeed Mahameed d6666753c6 net/mlx5: E-Switch, Introduce HCA cap and E-Switch vport context
E-Switch vport context is unlike NIC vport context, managed by the
E-Switch manager or vport_group_manager and not by the NIC(VF) driver.

The E-Switch manager can access (read/modify) any of its vports
E-Switch context.

Currently E-Switch vport context includes only clietnt and server
vlan insertion and striping data (for later support of VST mode).

Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-12-03 12:08:46 -05:00
Saeed Mahameed 81848731ff net/mlx5: E-Switch, Add SR-IOV (FDB) support
Enabling E-Switch SRIOV for nvfs+1 vports.

Create E-Switch FDB for L2 UC/MC mac steering between VFs/PF and
external vport (Uplink).

FDB contains forwarding rules such as:
	UC MAC0 -> vport0(PF).
	UC MAC1 -> vport1.
	UC MAC2 -> vport2.
	MC MACX -> vport0, vport2, Uplink.
	MC MACY -> vport1, Uplink.

For unmatched traffic FDB has the following default rules:
	Unmached Traffic (src vport != Uplink) -> Uplink.
	Unmached Traffic (src vport == Uplink) -> vport0(PF).

FDB rules population:
Each NIC vport (VF) will notify E-Switch manager of its UC/MC vport
context changes via modify vport context command, which will be
translated to an event that will be handled by E-Switch manager (PF)
which will update FDB table accordingly.

Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-12-03 12:08:46 -05:00
Saeed Mahameed 495716b191 net/mlx5: E-Switch, Introduce FDB hardware capabilities
Define needed hardware structures and capabilities needed
for E-Switch FDB flow tables and read them on driver load.

Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-12-03 12:08:46 -05:00
Saeed Mahameed 073bb189a4 net/mlx5: Introducing E-Switch and l2 table
E-Switch is the software entity that represents and manages ConnectX4
inter-HCA ethernet l2 switching.

E-Switch has its own Virtual Ports, each Vport/vNIC/VF can be
connected to the device through a vport of an e-switch.

Each e-switch is managed by one vNIC identified by
HCA_CAP.vport_group_manager (usually it is the PF/vport[0]),
and its main responsibility is to forward each packet to the
right vport.

e-Switch needs to manage its own l2-table and FDB tables.

L2 table is a flow table that is managed by FW, it is needed for
Multi-host (Multi PF) configuration for inter HCA switching between
PFs.

FDB table is a flow table that is totally managed by e-Switch driver,
its main responsibility is to switch packets between e-Swtich internal
vports and uplink vport that belong to the same.

This patch introduces only e-Swtich l2 table management, FDB managemnt
will come later when ethernet SRIOV/VFs will be enabled.

preperation for ethernet sriov and l2 table management.

Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-12-03 12:08:46 -05:00
Saeed Mahameed c0046cf7b8 net/mlx5: Introduce access functions to modify/query vport vlans
Those functions are needed to notify the upcoming L2 table and SR-IOV
E-Switch(FDB) manager(PF), of the NIC vport (vf) vlan table changes.

preperation for ethernet sriov and l2 table management.

Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-12-03 12:08:45 -05:00
Saeed Mahameed d82b73186d net/mlx5: Introduce access functions to modify/query vport promisc mode
Those functions are needed to notify the upcoming SR-IOV
E-Switch(FDB) manager(PF), of the NIC vport (vf) promisc mode changes.

Preperation for ethernet sriov and l2 table management.

Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-12-03 12:08:45 -05:00
Saeed Mahameed e75465148b net/mlx5: Introduce access functions to modify/query vport state
In preparation for SR-IOV we add here an API to enable each e-switch
manager (PF) to configure its VFs link states in e-switch

preparation for ethernet sriov.

Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-12-03 12:08:44 -05:00
Saeed Mahameed e16aea2744 net/mlx5: Introduce access functions to modify/query vport mac lists
Those functions are needed to notify the upcoming L2 table and SR-IOV
E-Switch(FDB) manager(PF), of the NIC vport (vf) UC/MC mac lists
changes.

preperation for ethernet sriov and l2 table management.

Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-12-03 12:08:44 -05:00
Saeed Mahameed e1d7d349c6 net/mlx5: Update access functions to Query/Modify vport MAC address
In preparation for SR-IOV we add here an API to enable each e-switch
client (PF/VF) to configure its L2 MAC addresses and for the e-switch
manager (usually the PF) to access them in order to be able to
configure them into the e-switch.
Therefore we now pass vport num parameter to
mlx5_query_nic_vport_context, so PF can access other vports contexts.

preperation for ethernet sriov and l2 table management.

Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-12-03 12:08:44 -05:00
Saeed Mahameed 54f0a411ec net/mlx5: Add HW capabilities and structs for SR-IOV E-Switch
Update HCA capabilities and HW struct to include needed
capabilities for upcoming Ethernet Switch (SR-IOV E-Switch).

Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-12-03 12:08:44 -05:00
Eli Cohen fc50db98ff net/mlx5_core: Add base sriov support
This patch adds SRIOV base support for mlx5 supported devices. The same
driver is used for both PFs and VFs; VFs are identified by the driver
through the flag MLX5_PCI_DEV_IS_VF added to the pci table entries.
Virtual functions are created as usual through writing a value to the
sriov_numvs sysfs file of the PF device. Upon instantiating VFs, they will
all be probed by the driver on the hypervisor. One can gracefully unbind
them through /sys/bus/pci/drivers/mlx5_core/unbind.

mlx5_wait_for_vf_pages() was added to ensure that when a VF dies without
executing proper teardown, the hypervisor driver waits till all of the
pages that were allocated at the hypervisor to maintain its operation
are returned.

In order for the VF to be operational, the PF needs to call enable_hca
for it. This can be done before the VFs are created through a call to
pci_enable_sriov.

If the there are VFs assigned to a VMs when the driver of the PF is
unloaded, all the VF will experience system error and PF driver unloads
cleanly; in this case pci_disable_sriov is not called and the devices
will show when running lspci. Once the PF driver is reloaded, it will
sync its data structures which maintain state on its VFs.

Signed-off-by: Eli Cohen <eli@mellanox.com>
Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-12-03 12:08:43 -05:00
Jiri Pirko fb1b2e3ce5 net: introduce lower state changed info structure for LAG lowers
This is shared info structure for bonding and team. Serves to pass down
info about link state and port activity to notification listeners.

Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-12-03 11:49:26 -05:00
Jiri Pirko 04d482660a net: introduce change lower state notifier
When lower device like bonding slave, team/bridge port, etc changes its
state, it is useful for others to notice this change. Currently this is
implemented specificly for bonding as NETDEV_BONDING_INFO notifier. This
patch aims to replace this specific usage and make this more generic to
be used for all upper-lower devices.

Introduce NETDEV_CHANGELOWERSTATE netdev notifier type and
netdev_lower_state_changed() helper.

Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-12-03 11:49:26 -05:00
Jiri Pirko 8fd728566a team: fill-up LAG changeupper info struct and pass it along
Initialize netdev_lag_upper_info structure by TX type according to
current team mode and pass it along via netdev_master_upper_dev_link.

Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-12-03 11:49:26 -05:00
Jiri Pirko 764f5e5441 net: add info struct for LAG changeupper
This struct will be shared by bonding and team to pass internal
information to notifier listeners.

Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-12-03 11:49:25 -05:00
Jiri Pirko 29bf24afb2 net: add possibility to pass information about upper device via notifier
Sometimes the drivers and other code would find it handy to know some
internal information about upper device being changed. So allow upper-code
to pass information down to notifier listeners during linking.

Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-12-03 11:49:25 -05:00
Jiri Pirko 6dffb0447c net: propagate upper priv via netdev_master_upper_dev_link
Eliminate netdev_master_upper_dev_link_private and pass priv directly as
a parameter of netdev_master_upper_dev_link.

Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-12-03 11:49:25 -05:00
Jiri Pirko e0ba1414f3 net: add netif_is_lag_port helper
Some code does not mind if a device is bond slave or team port and treats
them the same, as generic LAG ports.

Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-12-03 11:49:24 -05:00
Jiri Pirko 7be6183304 net: add netif_is_lag_master helper
Some code does not mind if the master is bond or team and treats them
the same, as generic LAG.

Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-12-03 11:49:24 -05:00
Jiri Pirko f7f019ee6d net: add netif_is_team_port helper
Similar to other helpers, caller can use this to find out if device is
team port.

Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-12-03 11:49:24 -05:00
Jiri Pirko c981e4213e net: add netif_is_team_master helper
Similar to other helpers, caller can use this to find out if device is
team master.

Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-12-03 11:49:24 -05:00
KY Srinivasan c0eb454034 hv_netvsc: Don't ask for additional head room in the skb
The rndis header is 116 bytes big and can be placed in the default
head room that will be available in the skb. Since the netvsc packet
is less than 48 bytes, we can use the skb control buffer
for the netvsc packet. With these changes we don't need to
ask for additional head room.

Signed-off-by: K. Y. Srinivasan <kys@microsoft.com>
Reviewed-by: Haiyang Zhang <haiyangz@microsoft.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-12-02 23:43:24 -05:00
Eric Dumazet 45f6fad84c ipv6: add complete rcu protection around np->opt
This patch addresses multiple problems :

UDP/RAW sendmsg() need to get a stable struct ipv6_txoptions
while socket is not locked : Other threads can change np->opt
concurrently. Dmitry posted a syzkaller
(http://github.com/google/syzkaller) program desmonstrating
use-after-free.

Starting with TCP/DCCP lockless listeners, tcp_v6_syn_recv_sock()
and dccp_v6_request_recv_sock() also need to use RCU protection
to dereference np->opt once (before calling ipv6_dup_options())

This patch adds full RCU protection to np->opt

Reported-by: Dmitry Vyukov <dvyukov@google.com>
Signed-off-by: Eric Dumazet <edumazet@google.com>
Acked-by: Hannes Frederic Sowa <hannes@stressinduktion.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-12-02 23:37:16 -05:00
Sudarsana Kalluru 91420b83ba qed: Add support for changing LED state
Physical LEDs are being controlled by the management FW.
This adds the qed functionality required to request management FW to
change the LED configuration, as well as the necessary APIs for this
functionality to later be used by the protocol drivers.

Signed-off-by: Sudarsana Kalluru <Sudarsana.Kalluru@qlogic.com>
Signed-off-by: Yuval Mintz <Yuval.Mintz@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-12-01 16:02:40 -05:00
Eric Dumazet ceb5d58b21 net: fix sock_wake_async() rcu protection
Dmitry provided a syzkaller (http://github.com/google/syzkaller)
triggering a fault in sock_wake_async() when async IO is requested.

Said program stressed af_unix sockets, but the issue is generic
and should be addressed in core networking stack.

The problem is that by the time sock_wake_async() is called,
we should not access the @flags field of 'struct socket',
as the inode containing this socket might be freed without
further notice, and without RCU grace period.

We already maintain an RCU protected structure, "struct socket_wq"
so moving SOCKWQ_ASYNC_NOSPACE & SOCKWQ_ASYNC_WAITDATA into it
is the safe route.

It also reduces number of cache lines needing dirtying, so might
provide a performance improvement anyway.

In followup patches, we might move remaining flags (SOCK_NOSPACE,
SOCK_PASSCRED, SOCK_PASSSEC) to save 8 bytes and let 'struct socket'
being mostly read and let it being shared between cpus.

Reported-by: Dmitry Vyukov <dvyukov@google.com>
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-12-01 15:45:05 -05:00
Eric Dumazet 9cd3e072b0 net: rename SOCK_ASYNC_NOSPACE and SOCK_ASYNC_WAITDATA
This patch is a cleanup to make following patch easier to
review.

Goal is to move SOCK_ASYNC_NOSPACE and SOCK_ASYNC_WAITDATA
from (struct socket)->flags to a (struct socket_wq)->flags
to benefit from RCU protection in sock_wake_async()

To ease backports, we rename both constants.

Two new helpers, sk_set_bit(int nr, struct sock *sk)
and sk_clear_bit(int net, struct sock *sk) are added so that
following patch can change their implementation.

Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-12-01 15:45:05 -05:00
Nikolay Aleksandrov 1973a4ea6c net: ipmr: move pimsm_enabled to pim.h and rename
Move the inline pimsm_enabled() to pim.h and rename it to
ipmr_pimsm_enabled to show it's for the ipv4 ipmr code since pim.h is
used by IPv6 too.

Signed-off-by: Nikolay Aleksandrov <nikolay@cumulusnetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-11-30 15:26:22 -05:00
Nikolay Aleksandrov 5ea1f13299 net: ipmr: move struct mr_table and VIF_EXISTS to mroute.h
Move the definitions of VIF_EXISTS() and struct mr_table to mroute.h

Signed-off-by: Nikolay Aleksandrov <nikolay@cumulusnetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-11-30 15:26:22 -05:00
Nikolay Aleksandrov 520191bb40 net: ipmr: adjust mroute.h style and drop extern
Remove extra spaces and tabs, adjust function definitions, remove an
unnecessary ifdef (already used below, just move code) and drop extern
from the functions.

Signed-off-by: Nikolay Aleksandrov <nikolay@cumulusnetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-11-30 15:26:22 -05:00
Nikolay Aleksandrov 06bd6c0370 net: ipmr: remove unused MFC_NOTIFY flag and make the flags enum
MFC_NOTIFY was introduced in kernel 2.1.68 but afaik it hasn't been used
and I couldn't find any users currently so just remove it. Only
MFC_STATIC is left, so move it into an enum, add a description and use
BIT().

Signed-off-by: Nikolay Aleksandrov <nikolay@cumulusnetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-11-30 15:26:22 -05:00
Herbert Xu 1ce0bf50ae net: Generalise wq_has_sleeper helper
The memory barrier in the helper wq_has_sleeper is needed by just
about every user of waitqueue_active.  This patch generalises it
by making it take a wait_queue_head_t directly.  The existing
helper is renamed to skwq_has_sleeper.

Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-11-30 14:47:33 -05:00
Martin Blumenstingl 880621c260 packet: Allow packets with only a header (but no payload)
Commit 9c7077622d ("packet: make packet_snd fail on len smaller
than l2 header") added validation for the packet size in packet_snd.
This change enforces that every packet needs a header (with at least
hard_header_len bytes) plus a payload with at least one byte. Before
this change the payload was optional.

This fixes PPPoE connections which do not have a "Service" or
"Host-Uniq" configured (which is violating the spec, but is still
widely used in real-world setups). Those are currently failing with the
following message: "pppd: packet size is too short (24 <= 24)"

Signed-off-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-11-29 22:17:17 -05:00
Hannes Reinecke bf4e6b4e75 block: Always check queue limits for cloned requests
When a cloned request is retried on other queues it always needs
to be checked against the queue limits of that queue.
Otherwise the calculations for nr_phys_segments might be wrong,
leading to a crash in scsi_init_sgtable().

To clarify this the patch renames blk_rq_check_limits()
to blk_cloned_rq_check_limits() and removes the symbol
export, as the new function should only be used for
cloned requests and never exported.

Cc: Mike Snitzer <snitzer@redhat.com>
Cc: Ewan Milne <emilne@redhat.com>
Cc: Jeff Moyer <jmoyer@redhat.com>
Signed-off-by: Hannes Reinecke <hare@suse.de>
Fixes: e2a60da74 ("block: Clean up special command handling logic")
Cc: stable@vger.kernel.org # 3.7+
Acked-by: Mike Snitzer <snitzer@redhat.com>
Signed-off-by: Jens Axboe <axboe@fb.com>
2015-11-29 14:37:27 -07:00
Matias Bjørling 08236c6bb2 lightnvm: unconverted ppa returned in get_bb_tbl
The get_bb_tbl function takes ppa as a generic address, which is
converted to the ppa device address within the device driver. When
the update_bbtbl callback is called from get_bb_tbl, the device
specific ppa is used, instead of the generic ppa.

Make sure to pass the generic ppa.

Signed-off-by: Matias Bjørling <m@bjorling.me>
Signed-off-by: Jens Axboe <axboe@fb.com>
2015-11-29 14:34:58 -07:00
Linus Torvalds 36511e8607 Merge git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending
Pull SCSI target fixes from Nicholas Bellinger:
 - fix tcm-user backend driver expired cmd time processing (agrover)
 - eliminate kref_put_spinlock_irqsave() for I/O completion (bart)
 - fix iscsi login kthread failure case hung task regression (nab)
 - fix COMPARE_AND_WRITE completion use-after-free race (nab)
 - fix COMPARE_AND_WRITE with SCF_PASSTHROUGH_SG_TO_MEM_NOALLOC non zero
   SGL offset data corruption.  (Jan + Doug)
 - fix >= v4.4-rc1 regression for tcm_qla2xxx enable configfs attribute
   (Himanshu + HCH)

* git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending:
  target/stat: print full t10_wwn.model buffer
  target: fix COMPARE_AND_WRITE non zero SGL offset data corruption
  qla2xxx: Fix regression introduced by target configFS changes
  kref: Remove kref_put_spinlock_irqsave()
  target: Invoke release_cmd() callback without holding a spinlock
  target: Fix race for SCF_COMPARE_AND_WRITE_POST checking
  iscsi-target: Fix rx_login_comp hang after login failure
  iscsi-target: return -ENOMEM instead of -1 in case of failed kmalloc()
  target/user: Do not set unused fields in tcmu_ops
  target/user: Fix time calc in expired cmd processing
2015-11-29 09:03:57 -08:00
Linus Torvalds 75a29ec1e8 Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/rzhang/linux
Pull thermal management fixes from Zhang Rui:
 "Specifics:

 - several fixes and cleanups on Rockchip thermal drivers.

 - add the missing support of RK3368 SoCs in Rockchip driver.

 - small fixes on of-thermal, power_allocator, rcar driver, IMX, and
   QCOM drivers, and also compilation fixes, on thermal.h, when thermal
   is not selected"

* 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/rzhang/linux:
  imx: thermal: use CPU temperature grade info for thresholds
  thermal: fix thermal_zone_bind_cooling_device prototype
  Revert "thermal: qcom_spmi: allow compile test"
  thermal: rcar_thermal: remove redundant operation
  thermal: of-thermal: Reduce log level for message when can't fine thermal zone
  thermal: power_allocator: Use temperature reading from tz
  thermal: rockchip: Support the RK3368 SoCs in thermal driver
  thermal: rockchip: consistently use int for temperatures
  thermal: rockchip: Add the sort mode for adc value increment or decrement
  thermal: rockchip: improve the conversion function
  thermal: rockchip: trivial: fix typo in commit
  thermal: rockchip: better to compatible the driver for different SoCs
  dt-bindings: rockchip-thermal: Support the RK3368 SoCs compatible
2015-11-29 08:58:48 -08:00
Bart Van Assche 3a66d7dca1 kref: Remove kref_put_spinlock_irqsave()
The last user is gone. Hence remove this function.

Signed-off-by: Bart Van Assche <bart.vanassche@sandisk.com>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Christoph Hellwig <hch@lst.de>
Cc: Joern Engel <joern@logfs.org>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
2015-11-28 19:33:29 -08:00
Linus Torvalds 081f3698e6 Merge tag 'pci-v4.4-fixes-1' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci
Pull PCI fixes from Bjorn Helgaas:
 "Here are a few fixes I'd like to have in v4.4: a generic one for sysfs
  and three for HiSilicon and DesignWare host controllers.

  Summary:

  NUMA:
   - Prevent out of bounds access in numa_node override (Mathias Krause)

  HiSilicon host bridge driver:
   - Fix deferred probing (Arnd Bergmann)

  Synopsys DesignWare host bridge driver:
   - Remove incorrect io_base assignment (Stanimir Varbanov)
   - Move align_resource function pointer to pci_host_bridge structure
     (Gabriele Paoloni)"

* tag 'pci-v4.4-fixes-1' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci:
  ARM/PCI: Move align_resource function pointer to pci_host_bridge structure
  PCI: hisi: Fix deferred probing
  PCI: designware: Remove incorrect io_base assignment
  PCI: Prevent out of bounds access in numa_node override
2015-11-28 13:07:41 -08:00
Linus Torvalds 8003a57356 Merge tag 'nfs-for-4.4-2' of git://git.linux-nfs.org/projects/trondmy/linux-nfs
Pull NFS client bugfixes from Trond Myklebust:
 "Highlights include:

  Stable patches:
   - Fix a NFSv4 callback identifier leak that was also causing client
     crashes
   - Fix NFSv4 callback decoding issues when incoming requests are
     truncated
   - Don't declare the attribute cache valid when we call
     nfs_update_inode with an empty attribute structure.
   - Resend LAYOUTGET when there is a race that changes the seqid

  Bugfixes:
   - Fix a number of issues with the NFSv4.2 CLONE ioctl()
   - Properly set NFS v4.2 NFSDBG_FACILITY
   - NFSv4 referrals are broken; Cleanup FATTR4_WORD0_FS_LOCATIONS after
     decoding success
   - Use sliding delay when LAYOUTGET gets NFS4ERR_DELAY
   - Ensure that attrcache is revalidated after a SETATTR"

* tag 'nfs-for-4.4-2' of git://git.linux-nfs.org/projects/trondmy/linux-nfs:
  nfs4: resend LAYOUTGET when there is a race that changes the seqid
  nfs: if we have no valid attrs, then don't declare the attribute cache valid
  nfs: ensure that attrcache is revalidated after a SETATTR
  nfs4: limit callback decoding to received bytes
  nfs4: start callback_ident at idr 1
  nfs: use sliding delay when LAYOUTGET gets NFS4ERR_DELAY
  NFS4: Cleanup FATTR4_WORD0_FS_LOCATIONS after decoding success
  NFS: Properly set NFS v4.2 NFSDBG_FACILITY
  nfs: reduce the amount of ifdefs for v4.2 in nfs4file.c
  nfs: use btrfs ioctl defintions for clone
  nfs: allow intra-file CLONE
  nfs: offer native ioctls even if CONFIG_COMPAT is set
  nfs: pass on count for CLONE operations
2015-11-27 17:22:47 -08:00
Linus Torvalds c64410f3ec Merge tag 'fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
Pull ARM SoC fixes from Arnd Bergmann:
 "There is a small backlog of at91 patches here, the most significant is
  the addition of some sama5d2 Xplained nodes that were waiting on an
  MFD include file to get merged through another tree.

  We normally try to sort those out before the merge window opens, but
  the maintainer wasn't aware of that here and I decided to merge the
  changes this time as an exception.

  On OMAP a series of audio changes for dra7 missed the merge window but
  turned out to be necessary to fix a boot time imprecise external abort
  error and to get audio working.

  The other changes are the usual simple changes, here is a list sorted
  by platform:

  at91:
	removal of a useless defconfig option
	removal of some legacy DT pieces
	use of the proper watchdog compatible string
	update of the MAINTAINERS entries for some Atmel drivers

  drivers/scpi:
	hide get_scpi_ops in module from built-in code

  imx:
	add missing .irq_set_type for i.MX GPC irq_chip.
	fix the wrong spi-num-chipselects settings for Vybrid DSPI devices.
	fix a merge error in Vybrid dts regarding to ADC device property

  keystone:
        fix the optional PDSP firmware loading
        fix linking RAM setup for QMs
        fix crash with clk_ignore_unused

  mediatek:
	Enable SCPSYS power domain driver by default

  mvebu:
	fix QNAP TS219 power-off in dts
	fix legacy get_irqnr_and_base for dove and orion5x

  omap:
	fix l4 related boot time errors for dm81xx
	use lockless cldm/pwrdm api in omap4_boot_secondary
	remove t410 abort handler to avoid hiding other critical errors
	mark cpuidle tracepoints as _rcuidle
	fix module alias for omap-ocp2scp

  pxa:
	palm: Fix typos in PWM lookup table code

  renesas:
	missing __initconst annotation for r8a7793_boards_compat_dt

  rockchip:
	disable mmc-tuning on the veyron-minnie board
	adding the init state for the over-temperature-protection

  zx:
	only build power domain code when CONFIG_PM=y"

* tag 'fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (31 commits)
  ARM: OMAP4+: SMP: use lockless clkdm/pwrdm api in omap4_boot_secondary
  arm: omap2+: add missing HWMOD_NO_IDLEST in 81xx hwmod data
  ARM: orion5x: Fix legacy get_irqnr_and_base
  ARM: dove: Fix legacy get_irqnr_and_base
  soc: Mediatek: Enable SCPSYS power domain driver by default
  ARM: dts: vfxxx: Fix dspi[01] spi-num-chipselects.
  ARM: dts: keystone: k2l: fix kernel crash when clk_ignore_unused is not in bootargs
  soc: ti: knav_qmss_queue: Fix linking RAM setup for queue managers
  soc: ti: use request_firmware_direct() as acc firmware is optional
  ARM: imx: add platform irq type setting in gpc
  ARM: dts: vfxxx: Fix erroneous property in esdhc0 node
  ARM: shmobile: r8a7793: proper constness with __initconst
  scpi: hide get_scpi_ops in module from built-in code
  ARM: zx: only build power domain code when CONFIG_PM=y
  ARM: pxa: palm: Fix typos in PWM lookup table code
  ARM: dts: Kirkwood: Fix QNAP TS219 power-off
  ARM: dts: rockchip: Add OTP gpio pinctrl to rk3288 tsadc node
  ARM: dts: rockchip: temporarily remove emmc hs200 speed from rk3288 minnie
  MAINTAINERS: Atmel drivers: change NAND and ISI entries
  ARM: at91/dt: sama5d2 Xplained: add several devices
  ...
2015-11-27 14:22:03 -08:00
Linus Torvalds 5d8686276a Merge tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux
Pull arm64 fixes from Catalin Marinas:

 - Build fix when !CONFIG_UID16 (the patch is touching generic files but
   it only affects arm64 builds; submitted by Arnd Bergmann)

 - EFI fixes to deal with early_memremap() returning NULL and correctly
   mapping run-time regions

 - Fix CPUID register extraction of unsigned fields (not to be
   sign-extended)

 - ASID allocator fix to deal with long-running tasks over multiple
   generation roll-overs

 - Revert support for marking page ranges as contiguous PTEs (it leads
   to TLB conflicts and requires additional non-trivial kernel changes)

 - Proper early_alloc() failure check

 - Disable KASan for 48-bit VA and 16KB page configuration (the pgd is
   larger than the KASan shadow memory)

 - Update the fault_info table (original descriptions based on early
   engineering spec)

* tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux:
  arm64: efi: fix initcall return values
  arm64: efi: deal with NULL return value of early_memremap()
  arm64: debug: Treat the BRPs/WRPs as unsigned
  arm64: cpufeature: Track unsigned fields
  arm64: cpufeature: Add helpers for extracting unsigned values
  Revert "arm64: Mark kernel page ranges contiguous"
  arm64: mm: keep reserved ASIDs in sync with mm after multiple rollovers
  arm64: KASAN depends on !(ARM64_16K_PAGES && ARM64_VA_BITS_48)
  arm64: efi: correctly map runtime regions
  arm64: mm: fix fault_info table xFSC decoding
  arm64: fix building without CONFIG_UID16
  arm64: early_alloc: Fix check for allocation failure
2015-11-27 11:09:59 -08:00
Arnd Bergmann d3de94ba4e Merge tag 'v4.4-rc2' into fixes
Linux 4.4-rc2 is backmerged from the keystone fixes.
2015-11-25 23:47:38 +01:00