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7 years agotcp: tcp_rack_reo_timeout() must update tp->tcp_mstamp
Eric Dumazet [Thu, 27 Apr 2017 04:10:55 +0000 (21:10 -0700)]
tcp: tcp_rack_reo_timeout() must update tp->tcp_mstamp

I wrongly assumed tp->tcp_mstamp was up to date at the time
tcp_rack_reo_timeout() was called.

It is not true, since we only update tcp->tcp_mstamp when receiving
a packet (as initially done in commit 69e996c58a35 ("tcp: add
tp->tcp_mstamp field")

tcp_rack_reo_timeout() being called by a timer and not an incoming
packet, we need to refresh tp->tcp_mstamp

Fixes: 7c1c7308592f ("tcp: do not pass timestamp to tcp_rack_detect_loss()")
Signed-off-by: Eric Dumazet <[email protected]>
Cc: Soheil Hassas Yeganeh <[email protected]>
Cc: Neal Cardwell <[email protected]>
Cc: Yuchung Cheng <[email protected]>
Acked-by: Soheil Hassas Yeganeh <[email protected]>
Acked-by: Neal Cardwell <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
7 years agocan: fix CAN BCM build with CONFIG_PROC_FS disabled
Oliver Hartkopp [Wed, 26 Apr 2017 18:14:34 +0000 (20:14 +0200)]
can: fix CAN BCM build with CONFIG_PROC_FS disabled

The introduced namespace support moved the BCM variables for procfs into a
per-net data structure. This leads to a build failure with disabled procfs:

on x86_64:

when CONFIG_PROC_FS is not enabled:

../net/can/bcm.c:1541:14: error: 'struct netns_can' has no member named 'bcmproc_dir'
../net/can/bcm.c:1601:14: error: 'struct netns_can' has no member named 'bcmproc_dir'
../net/can/bcm.c:1696:11: error: 'struct netns_can' has no member named 'bcmproc_dir'
../net/can/bcm.c:1707:15: error: 'struct netns_can' has no member named 'bcmproc_dir'

http://marc.info/?l=linux-can&m=149321842526524&w=2

Reported-by: Randy Dunlap <[email protected]>
Signed-off-by: Oliver Hartkopp <[email protected]>
Signed-off-by: Marc Kleine-Budde <[email protected]>
7 years agoMerge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
David S. Miller [Thu, 27 Apr 2017 02:39:08 +0000 (22:39 -0400)]
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net

Signed-off-by: David S. Miller <[email protected]>
7 years agoMerge git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc
Linus Torvalds [Wed, 26 Apr 2017 22:10:45 +0000 (15:10 -0700)]
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc

Pull sparc fixes from David Miller:
 "I didn't want the release to go out without the statx system call
  properly hooked up"

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc:
  sparc: Update syscall tables.
  sparc64: Fill in rest of HAVE_REGS_AND_STACK_ACCESS_API

7 years agostatx: Kill fd-with-NULL-path support in favour of AT_EMPTY_PATH
David Howells [Wed, 26 Apr 2017 21:15:55 +0000 (22:15 +0100)]
statx: Kill fd-with-NULL-path support in favour of AT_EMPTY_PATH

With the new statx() syscall, the following both allow the attributes of
the file attached to a file descriptor to be retrieved:

statx(dfd, NULL, 0, ...);

and:

statx(dfd, "", AT_EMPTY_PATH, ...);

Change the code to reject the first option, though this means copying
the path and engaging pathwalk for the fstat() equivalent.  dfd can be a
non-directory provided path is "".

[ The timing of this isn't wonderful, but applying this now before we
  have statx() in any released kernel, before anybody starts using the
  NULL special case.    - Linus ]

Fixes: a528d35e8bfc ("statx: Add a system call to make enhanced file info available")
Reported-by: Michael Kerrisk <[email protected]>
Signed-off-by: David Howells <[email protected]>
cc: Eric Sandeen <[email protected]>
cc: [email protected]
cc: [email protected]
cc: [email protected]
Signed-off-by: Linus Torvalds <[email protected]>
7 years agomac80211: make multicast variable a bool in ieee80211_accept_frame()
Luca Coelho [Wed, 26 Apr 2017 07:58:54 +0000 (10:58 +0300)]
mac80211: make multicast variable a bool in ieee80211_accept_frame()

The multicast variable in the ieee80211_accept_frame() function is
treated as a boolean, but defined as int.  Fix that.

Signed-off-by: Luca Coelho <[email protected]>
Signed-off-by: Johannes Berg <[email protected]>
7 years agomac80211: disentangle iflist_mtx and chanctx_mtx
Johannes Berg [Wed, 26 Apr 2017 07:58:53 +0000 (10:58 +0300)]
mac80211: disentangle iflist_mtx and chanctx_mtx

At least on iwlwifi, sometimes lockdep complains that we can
lock
 chanctx_mtx -> mvm.mutex -> iflist_mtx
 (due to iterate_interfaces)
and
 iflist_mtx -> chanctx_mtx

Remove the latter dependency in mac80211 by using the RTNL
that we already hold in one case, and can relatively easily
achieve in the other case.

Signed-off-by: Johannes Berg <[email protected]>
7 years agomac80211: don't parse encrypted management frames in ieee80211_frame_acked
Emmanuel Grumbach [Wed, 26 Apr 2017 07:58:51 +0000 (10:58 +0300)]
mac80211: don't parse encrypted management frames in ieee80211_frame_acked

ieee80211_frame_acked is called when a frame is acked by
the peer. In case this is a management frame, we check
if this an SMPS frame, in which case we can update our
antenna configuration.

When we parse the management frame we look at the category
in case it is an action frame. That byte sits after the IV
in case the frame was encrypted. This means that if the
frame was encrypted, we basically look at the IV instead
of looking at the category. It is then theorically
possible that we think that an SMPS action frame was acked
where really we had another frame that was encrypted.

Since the only management frame whose ack needs to be
tracked is the SMPS action frame, and that frame is not
a robust management frame, it will never be encrypted.
The easiest way to fix this problem is then to not look
at frames that were encrypted.

Signed-off-by: Emmanuel Grumbach <[email protected]>
Signed-off-by: Luca Coelho <[email protected]>
Signed-off-by: Johannes Berg <[email protected]>
7 years agoieee80211: fix kernel-doc parsing errors
Johannes Berg [Wed, 26 Apr 2017 07:58:52 +0000 (10:58 +0300)]
ieee80211: fix kernel-doc parsing errors

Some of the enum definitions are unnamed but there's still
an attempt at documenting them - that doesn't work. Name
them to make that work.

Signed-off-by: Johannes Berg <[email protected]>
7 years agoieee80211: add FT-802.1X AKM suite selector
Luca Coelho [Wed, 26 Apr 2017 07:58:48 +0000 (10:58 +0300)]
ieee80211: add FT-802.1X AKM suite selector

Add the definition for FT-8021.1X AKM selector as defined in
IEEE Std 802.11-2016, table 9-133.

Signed-off-by: Luca Coelho <[email protected]>
Signed-off-by: Johannes Berg <[email protected]>
7 years agoieee80211: add SUITE_B AKM selectors
Luca Coelho [Wed, 26 Apr 2017 07:58:46 +0000 (10:58 +0300)]
ieee80211: add SUITE_B AKM selectors

Add the definitions for SUITE_B and SUITE_B_192 AKM selectors as
defined in IEEE802.11REVmc_D5.0, table 9-132.

Signed-off-by: Luca Coelho <[email protected]>
Signed-off-by: Johannes Berg <[email protected]>
7 years agocfg80211: add request id parameter to .sched_scan_stop() signature
Arend Van Spriel [Fri, 21 Apr 2017 12:05:02 +0000 (13:05 +0100)]
cfg80211: add request id parameter to .sched_scan_stop() signature

For multiple scheduled scan support the driver needs to know which
scheduled scan request is being stopped. Pass the request id in the
.sched_scan_stop() callback.

Reviewed-by: Hante Meuleman <[email protected]>
Reviewed-by: Pieter-Paul Giesberts <[email protected]>
Reviewed-by: Franky Lin <[email protected]>
Signed-off-by: Arend van Spriel <[email protected]>
Signed-off-by: Johannes Berg <[email protected]>
7 years agonl80211: add support for BSSIDs in scheduled scan matchsets
Arend Van Spriel [Fri, 21 Apr 2017 12:05:01 +0000 (13:05 +0100)]
nl80211: add support for BSSIDs in scheduled scan matchsets

This patch allows for the scheduled scan request to specify matchsets
for specific BSSIDs.

Reviewed-by: Hante Meuleman <[email protected]>
Reviewed-by: Pieter-Paul Giesberts <[email protected]>
Reviewed-by: Franky Lin <[email protected]>
Signed-off-by: Arend van Spriel <[email protected]>
[docs, netlink policy fix]
Signed-off-by: Johannes Berg <[email protected]>
7 years agonl80211: allow multiple active scheduled scan requests
Arend Van Spriel [Fri, 21 Apr 2017 12:05:00 +0000 (13:05 +0100)]
nl80211: allow multiple active scheduled scan requests

This patch implements the idea to have multiple scheduled scan requests
running concurrently. It mainly illustrates how to deal with the incoming
request from user-space in terms of backward compatibility. In order to
use multiple scheduled scans user-space needs to provide a flag attribute
NL80211_ATTR_SCHED_SCAN_MULTI to indicate support. If not the request is
treated as a legacy scan.

Drivers currently supporting scheduled scan are now indicating they support
a single scheduled scan request. This obsoletes WIPHY_FLAG_SUPPORTS_SCHED_SCAN.

Reviewed-by: Hante Meuleman <[email protected]>
Reviewed-by: Pieter-Paul Giesberts <[email protected]>
Reviewed-by: Franky Lin <[email protected]>
Signed-off-by: Arend van Spriel <[email protected]>
[clean up netlink destroy path to avoid allocations, code cleanups]
Signed-off-by: Johannes Berg <[email protected]>
7 years agocfg80211: simplify netlink socket owner interface deletion
Johannes Berg [Wed, 26 Apr 2017 05:43:41 +0000 (07:43 +0200)]
cfg80211: simplify netlink socket owner interface deletion

There's no need to allocate a portid structure and then, for
each of those, walk the interfaces - we can just add a flag
to each interface and walk those directly. Due to padding in
the struct, we can even do it without any memory cost, and
it even simplifies the code.

Signed-off-by: Johannes Berg <[email protected]>
7 years agoMerge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Linus Torvalds [Wed, 26 Apr 2017 20:42:32 +0000 (13:42 -0700)]
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net

Pull networking fixes from David Miller:

 1) MLX5 bug fixes from Saeed Mahameed et al:
     - released wrong resources when firmware timeout happens
     - fix wrong check for encapsulation size limits
     - UAR memory leak
     - ETHTOOL_GRXCLSRLALL failed to fill in info->data

 2) Don't cache l3mdev on mis-matches local route, causes net devices to
    leak refs. From Robert Shearman.

 3) Handle fragmented SKBs properly in macsec driver, the problem is
    that we were mis-sizing the sgvec table. From Jason A. Donenfeld.

 4) We cannot have checksum offload enabled for inner UDP tunneled
    packet during IPSEC, from Ansis Atteka.

 5) Fix double SKB free in ravb driver, from Dan Carpenter.

 6) Fix CPU port handling in b53 DSA driver, from Florian Dainelli.

 7) Don't use on-stack buffers for usb_control_msg() in CAN usb driver,
    from Maksim Salau.

 8) Fix device leak in macvlan driver, from Herbert Xu. We have to purge
    the broadcast queue properly on port destroy.

 9) Fix tx ring entry limit on EF10 devices in sfc driver. From Bert
    Kenward.

10) Fix memory leaks in team driver, from Pan Bian.

11) Don't setup ipv6_stub before it can be actually used, from Paolo
    Abeni.

12) Fix tipc socket flow control accounting, from Parthasarathy
    Bhuvaragan.

13) Fix crash on module unload in hso driver, from Andreas Kemnade.

14) Fix purging of bridge multicast entries, the problem is that if we
    don't defer it to ndo_uninit it's possible for new entries to get
    added after we purge. Fix from Xin Long.

15) Don't return garbage for PACKET_HDRLEN getsockopt, from Alexander
    Potapenko.

16) Fix autoneg stall properly in PHY layer, and revert micrel driver
    change that was papering over it. From Alexander Kochetkov.

17) Don't dereference an ipv4 route as an ipv6 one in the ip6_tunnnel
    code, from Cong Wang.

18) Clear out the congestion control private of the TCP socket in all of
    the right places, from Wei Wang.

19) rawv6_ioctl measures SKB length incorrectly, fix from Jamie
    Bainbridge.

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (41 commits)
  ipv6: check raw payload size correctly in ioctl
  tcp: memset ca_priv data to 0 properly
  ipv6: check skb->protocol before lookup for nexthop
  net: core: Prevent from dereferencing null pointer when releasing SKB
  macsec: dynamically allocate space for sglist
  Revert "phy: micrel: Disable auto negotiation on startup"
  net: phy: fix auto-negotiation stall due to unavailable interrupt
  net/packet: check length in getsockopt() called with PACKET_HDRLEN
  net: ipv6: regenerate host route if moved to gc list
  bridge: move bridge multicast cleanup to ndo_uninit
  ipv6: fix source routing
  qed: Fix error in the dcbx app meta data initialization.
  netvsc: fix calculation of available send sections
  net: hso: fix module unloading
  tipc: fix socket flow control accounting error at tipc_recv_stream
  tipc: fix socket flow control accounting error at tipc_send_stream
  ipv6: move stub initialization after ipv6 setup completion
  team: fix memory leaks
  sfc: tx ring can only have 2048 entries for all EF10 NICs
  macvlan: Fix device ref leak when purging bc_queue
  ...

7 years agoipv6: check raw payload size correctly in ioctl
Jamie Bainbridge [Wed, 26 Apr 2017 00:43:27 +0000 (10:43 +1000)]
ipv6: check raw payload size correctly in ioctl

In situations where an skb is paged, the transport header pointer and
tail pointer can be the same because the skb contents are in frags.

This results in ioctl(SIOCINQ/FIONREAD) incorrectly returning a
length of 0 when the length to receive is actually greater than zero.

skb->len is already correctly set in ip6_input_finish() with
pskb_pull(), so use skb->len as it always returns the correct result
for both linear and paged data.

Signed-off-by: Jamie Bainbridge <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
7 years agotcp: memset ca_priv data to 0 properly
Wei Wang [Wed, 26 Apr 2017 00:38:02 +0000 (17:38 -0700)]
tcp: memset ca_priv data to 0 properly

Always zero out ca_priv data in tcp_assign_congestion_control() so that
ca_priv data is cleared out during socket creation.
Also always zero out ca_priv data in tcp_reinit_congestion_control() so
that when cc algorithm is changed, ca_priv data is cleared out as well.
We should still zero out ca_priv data even in TCP_CLOSE state because
user could call connect() on AF_UNSPEC to disconnect the socket and
leave it in TCP_CLOSE state and later call setsockopt() to switch cc
algorithm on this socket.

Fixes: 2b0a8c9ee ("tcp: add CDG congestion control")
Reported-by: Andrey Konovalov <[email protected]>
Signed-off-by: Wei Wang <[email protected]>
Acked-by: Eric Dumazet <[email protected]>
Acked-by: Yuchung Cheng <[email protected]>
Acked-by: Neal Cardwell <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
7 years agoipv6: check skb->protocol before lookup for nexthop
WANG Cong [Tue, 25 Apr 2017 21:37:15 +0000 (14:37 -0700)]
ipv6: check skb->protocol before lookup for nexthop

Andrey reported a out-of-bound access in ip6_tnl_xmit(), this
is because we use an ipv4 dst in ip6_tnl_xmit() and cast an IPv4
neigh key as an IPv6 address:

        neigh = dst_neigh_lookup(skb_dst(skb),
                                 &ipv6_hdr(skb)->daddr);
        if (!neigh)
                goto tx_err_link_failure;

        addr6 = (struct in6_addr *)&neigh->primary_key; // <=== HERE
        addr_type = ipv6_addr_type(addr6);

        if (addr_type == IPV6_ADDR_ANY)
                addr6 = &ipv6_hdr(skb)->daddr;

        memcpy(&fl6->daddr, addr6, sizeof(fl6->daddr));

Also the network header of the skb at this point should be still IPv4
for 4in6 tunnels, we shold not just use it as IPv6 header.

This patch fixes it by checking if skb->protocol is ETH_P_IPV6: if it
is, we are safe to do the nexthop lookup using skb_dst() and
ipv6_hdr(skb)->daddr; if not (aka IPv4), we have no clue about which
dest address we can pick here, we have to rely on callers to fill it
from tunnel config, so just fall to ip6_route_output() to make the
decision.

Fixes: ea3dc9601bda ("ip6_tunnel: Add support for wildcard tunnel endpoints.")
Reported-by: Andrey Konovalov <[email protected]>
Tested-by: Andrey Konovalov <[email protected]>
Cc: Steffen Klassert <[email protected]>
Signed-off-by: Cong Wang <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
7 years agovirtio-net: on tx, only call napi_disable if tx napi is on
Willem de Bruijn [Tue, 25 Apr 2017 19:59:17 +0000 (15:59 -0400)]
virtio-net: on tx, only call napi_disable if tx napi is on

As of tx napi, device down (`ip link set dev $dev down`) hangs unless
tx napi is enabled. Else napi_enable is not called, so napi_disable
will spin on test_and_set_bit NAPI_STATE_SCHED.

Only call napi_disable if tx napi is enabled.

Fixes: 5a719c2552ca ("virtio-net: transmit napi")
Reported-by: Jason Wang <[email protected]>
Signed-off-by: Willem de Bruijn <[email protected]>
Acked-by: Michael S. Tsirkin <[email protected]>
Acked-by: Jason Wang <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
7 years agoMerge branch 'ibmvnic-Move-sub-crq-init-out-of-interrupt-context'
David S. Miller [Wed, 26 Apr 2017 18:49:16 +0000 (14:49 -0400)]
Merge branch 'ibmvnic-Move-sub-crq-init-out-of-interrupt-context'

Nathan Fontenot says:

====================
ibmvnic: Move sub crq init out of interrupt context

The sub crqs are currently intialized in interrupt context when
handling a crq response fromn the vios server. There is no reason
they must be initialized there.

Moving the initialization of the sub crqs to the ibmvnic_init routine
allows us to do the initialization outside of interrupt context and
make all of the allocations with GFP_KERNEL instead of GFP_ATOMIC.
====================

Signed-off-by: David S. Miller <[email protected]>
7 years agoibmvnic: Move initialization of sub crqs to ibmvnic_init
Nathan Fontenot [Tue, 25 Apr 2017 19:01:10 +0000 (15:01 -0400)]
ibmvnic: Move initialization of sub crqs to ibmvnic_init

The sub crq structures are initialized in interrupt context while
handling the response to crqs when negotiating capabilities for
the driver. The sub crqs do not need to be initialized at this point
and can be moved to being done from ibmvnic_init. Moving the init
of the sub crqs to ibmvnic_init also allows use to allocate the
memory with GFP_KERNEL instead of GFP_ATOMIC.

Signed-off-by: Nathan Fontenot <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
7 years agoibmvnic: Split initialization of scrqs to its own routine
Nathan Fontenot [Tue, 25 Apr 2017 19:01:04 +0000 (15:01 -0400)]
ibmvnic: Split initialization of scrqs to its own routine

Split the sending of capability request crqs and the initialization
of sub crqs into their own routines. This is a first step to moving
the allocation of sub-crqs out of interrupt context.

Signed-off-by: Nathan Fontenot <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
7 years agonet: core: Prevent from dereferencing null pointer when releasing SKB
Myungho Jung [Tue, 25 Apr 2017 18:58:15 +0000 (11:58 -0700)]
net: core: Prevent from dereferencing null pointer when releasing SKB

Added NULL check to make __dev_kfree_skb_irq consistent with kfree
family of functions.

Link: https://bugzilla.kernel.org/show_bug.cgi?id=195289
Signed-off-by: Myungho Jung <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
7 years agodt-bindings: mdio: Clarify binding document
Florian Fainelli [Tue, 25 Apr 2017 18:33:03 +0000 (11:33 -0700)]
dt-bindings: mdio: Clarify binding document

The described GPIO reset property is applicable to *all* child PHYs. If
we have one reset line per PHY present on the MDIO bus, these
automatically become properties of the child PHY nodes.

Finally, indicate how the RESET pulse width must be defined, which is
the maximum value of all individual PHYs RESET pulse widths determined
by reading their datasheets.

Fixes: 69226896ad63 ("mdio_bus: Issue GPIO RESET to PHYs.")
Signed-off-by: Florian Fainelli <[email protected]>
Reviewed-by: Roger Quadros <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
7 years agoMerge branch 'tcp-do-not-use-tcp_time_stamp-for-rcv-autotuning'
David S. Miller [Wed, 26 Apr 2017 18:44:39 +0000 (14:44 -0400)]
Merge branch 'tcp-do-not-use-tcp_time_stamp-for-rcv-autotuning'

Eric Dumazet says:

====================
tcp: do not use tcp_time_stamp for rcv autotuning

Some devices or linux distributions use HZ=100 or HZ=250

TCP receive buffer autotuning has poor behavior caused by this choice.
Since autotuning happens after 4 ms or 10 ms, short distance flows
get their receive buffer tuned to a very high value, but after an initial
period where it was frozen to (too small) initial value.

With BBR (or other CC allowing to increase BDP), we are willing to
increase tcp_rmem[2], but this receive autotuning defect is a blocker
for hosts dealing with gazillions of TCP flows in the data centers,
since many of them have inflated RCVBUF. Risk of OOM is too high.

Note that TSO autodefer, tcp cubic, and TCP TS options (RFC 7323)
also suffer from our dependency to jiffies (via tcp_time_stamp).

We have ongoing efforts to improve all that in the future.
====================

Signed-off-by: David S. Miller <[email protected]>
7 years agotcp: switch rcv_rtt_est and rcvq_space to high resolution timestamps
Eric Dumazet [Tue, 25 Apr 2017 17:15:41 +0000 (10:15 -0700)]
tcp: switch rcv_rtt_est and rcvq_space to high resolution timestamps

Some devices or distributions use HZ=100 or HZ=250

TCP receive buffer autotuning has poor behavior caused by this choice.
Since autotuning happens after 4 ms or 10 ms, short distance flows
get their receive buffer tuned to a very high value, but after an initial
period where it was frozen to (too small) initial value.

With tp->tcp_mstamp introduction, we can switch to high resolution
timestamps almost for free (at the expense of 8 additional bytes per
TCP structure)

Note that some TCP stacks use usec TCP timestamps where this
patch makes even more sense : Many TCP flows have < 500 usec RTT.
Hopefully this finer TS option can be standardized soon.

Tested:
 HZ=100 kernel
 ./netperf -H lpaa24 -t TCP_RR -l 1000 -- -r 10000,10000 &

 Peer without patch :
 lpaa24:~# ss -tmi dst lpaa23
 ...
 skmem:(r0,rb8388608,...)
 rcv_rtt:10 rcv_space:3210000 minrtt:0.017

 Peer with the patch :
 lpaa23:~# ss -tmi dst lpaa24
 ...
 skmem:(r0,rb428800,...)
 rcv_rtt:0.069 rcv_space:30000 minrtt:0.017

We can see saner RCVBUF, and more precise rcv_rtt information.

Signed-off-by: Eric Dumazet <[email protected]>
Acked-by: Soheil Hassas Yeganeh <[email protected]>
Acked-by: Neal Cardwell <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
7 years agotcp: remove ack_time from struct tcp_sacktag_state
Eric Dumazet [Tue, 25 Apr 2017 17:15:40 +0000 (10:15 -0700)]
tcp: remove ack_time from struct tcp_sacktag_state

It is no longer needed, everything uses tp->tcp_mstamp instead.

Signed-off-by: Eric Dumazet <[email protected]>
Acked-by: Soheil Hassas Yeganeh <[email protected]>
Acked-by: Neal Cardwell <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
7 years agotcp: use tp->tcp_mstamp in tcp_clean_rtx_queue()
Eric Dumazet [Tue, 25 Apr 2017 17:15:39 +0000 (10:15 -0700)]
tcp: use tp->tcp_mstamp in tcp_clean_rtx_queue()

Following patch will remove ack_time from struct tcp_sacktag_state

Same info is now found in tp->tcp_mstamp

Signed-off-by: Eric Dumazet <[email protected]>
Acked-by: Soheil Hassas Yeganeh <[email protected]>
Acked-by: Neal Cardwell <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
7 years agotcp: do not pass timestamp to tcp_rack_advance()
Eric Dumazet [Tue, 25 Apr 2017 17:15:38 +0000 (10:15 -0700)]
tcp: do not pass timestamp to tcp_rack_advance()

No longer needed, since tp->tcp_mstamp holds the information.

This is needed to remove sack_state.ack_time in a following patch.

Signed-off-by: Eric Dumazet <[email protected]>
Acked-by: Soheil Hassas Yeganeh <[email protected]>
Acked-by: Neal Cardwell <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
7 years agotcp: do not pass timestamp to tcp_rate_gen()
Eric Dumazet [Tue, 25 Apr 2017 17:15:37 +0000 (10:15 -0700)]
tcp: do not pass timestamp to tcp_rate_gen()

No longer needed, since tp->tcp_mstamp holds the information.

This is needed to remove sack_state.ack_time in a following patch.

Signed-off-by: Eric Dumazet <[email protected]>
Acked-by: Soheil Hassas Yeganeh <[email protected]>
Acked-by: Neal Cardwell <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
7 years agotcp: do not pass timestamp to tcp_fastretrans_alert()
Eric Dumazet [Tue, 25 Apr 2017 17:15:36 +0000 (10:15 -0700)]
tcp: do not pass timestamp to tcp_fastretrans_alert()

Not used anymore now tp->tcp_mstamp holds the information.

This is needed to remove sack_state.ack_time in a following patch.

Signed-off-by: Eric Dumazet <[email protected]>
Acked-by: Soheil Hassas Yeganeh <[email protected]>
Acked-by: Neal Cardwell <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
7 years agotcp: do not pass timestamp to tcp_rack_identify_loss()
Eric Dumazet [Tue, 25 Apr 2017 17:15:35 +0000 (10:15 -0700)]
tcp: do not pass timestamp to tcp_rack_identify_loss()

Not used anymore now tp->tcp_mstamp holds the information.

Signed-off-by: Eric Dumazet <[email protected]>
Acked-by: Soheil Hassas Yeganeh <[email protected]>
Acked-by: Neal Cardwell <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
7 years agotcp: do not pass timestamp to tcp_rack_mark_lost()
Eric Dumazet [Tue, 25 Apr 2017 17:15:34 +0000 (10:15 -0700)]
tcp: do not pass timestamp to tcp_rack_mark_lost()

This is no longer used, since tcp_rack_detect_loss() takes
the timestamp from tp->tcp_mstamp

Signed-off-by: Eric Dumazet <[email protected]>
Acked-by: Soheil Hassas Yeganeh <[email protected]>
Acked-by: Neal Cardwell <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
7 years agotcp: do not pass timestamp to tcp_rack_detect_loss()
Eric Dumazet [Tue, 25 Apr 2017 17:15:33 +0000 (10:15 -0700)]
tcp: do not pass timestamp to tcp_rack_detect_loss()

We can use tp->tcp_mstamp as it contains a recent timestamp.

This removes a call to skb_mstamp_get() from tcp_rack_reo_timeout()

Signed-off-by: Eric Dumazet <[email protected]>
Acked-by: Soheil Hassas Yeganeh <[email protected]>
Acked-by: Neal Cardwell <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
7 years agotcp: add tp->tcp_mstamp field
Eric Dumazet [Tue, 25 Apr 2017 17:15:32 +0000 (10:15 -0700)]
tcp: add tp->tcp_mstamp field

We want to use precise timestamps in TCP stack, but we do not
want to call possibly expensive kernel time services too often.

tp->tcp_mstamp is guaranteed to be updated once per incoming packet.

We will use it in the following patches, removing specific
skb_mstamp_get() calls, and removing ack_time from
struct tcp_sacktag_state.

Signed-off-by: Eric Dumazet <[email protected]>
Acked-by: Soheil Hassas Yeganeh <[email protected]>
Acked-by: Neal Cardwell <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
7 years agomacsec: dynamically allocate space for sglist
Jason A. Donenfeld [Tue, 25 Apr 2017 17:08:18 +0000 (19:08 +0200)]
macsec: dynamically allocate space for sglist

We call skb_cow_data, which is good anyway to ensure we can actually
modify the skb as such (another error from prior). Now that we have the
number of fragments required, we can safely allocate exactly that amount
of memory.

Fixes: c09440f7dcb3 ("macsec: introduce IEEE 802.1AE driver")
Signed-off-by: Jason A. Donenfeld <[email protected]>
Acked-by: Sabrina Dubroca <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
7 years agorhashtable: remove insecure_max_entries param
Florian Westphal [Tue, 25 Apr 2017 09:41:34 +0000 (11:41 +0200)]
rhashtable: remove insecure_max_entries param

no users in the tree, insecure_max_entries is always set to
ht->p.max_size * 2 in rhtashtable_init().

Replace only spot that uses it with a ht->p.max_size check.

Signed-off-by: Florian Westphal <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
7 years agoRevert "phy: micrel: Disable auto negotiation on startup"
David S. Miller [Wed, 26 Apr 2017 18:33:14 +0000 (14:33 -0400)]
Revert "phy: micrel: Disable auto negotiation on startup"

This reverts commit 99f81afc139c6edd14d77a91ee91685a414a1c66.

It was papering over the real problem, which is fixed by commit
f555f34fdc58 ("net: phy: fix auto-negotiation stall due to unavailable
interrupt")

Signed-off-by: David S. Miller <[email protected]>
7 years agonet: phy: fix auto-negotiation stall due to unavailable interrupt
Alexander Kochetkov [Thu, 20 Apr 2017 11:00:04 +0000 (14:00 +0300)]
net: phy: fix auto-negotiation stall due to unavailable interrupt

The Ethernet link on an interrupt driven PHY was not coming up if the Ethernet
cable was plugged before the Ethernet interface was brought up.

The patch trigger PHY state machine to update link state if PHY was requested to
do auto-negotiation and auto-negotiation complete flag already set.

During power-up cycle the PHY do auto-negotiation, generate interrupt and set
auto-negotiation complete flag. Interrupt is handled by PHY state machine but
doesn't update link state because PHY is in PHY_READY state. After some time
MAC bring up, start and request PHY to do auto-negotiation. If there are no new
settings to advertise genphy_config_aneg() doesn't start PHY auto-negotiation.
PHY continue to stay in auto-negotiation complete state and doesn't fire
interrupt. At the same time PHY state machine expect that PHY started
auto-negotiation and is waiting for interrupt from PHY and it won't get it.

Fixes: 321beec5047a ("net: phy: Use interrupts when available in NOLINK state")
Signed-off-by: Alexander Kochetkov <[email protected]>
Cc: stable <[email protected]> # v4.9+
Tested-by: Roger Quadros <[email protected]>
Tested-by: Alexandre Belloni <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
7 years agoMerge tag 'sound-4.11' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound
Linus Torvalds [Wed, 26 Apr 2017 16:30:33 +0000 (09:30 -0700)]
Merge tag 'sound-4.11' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound

Pull sound fixes from Takashi Iwai:
 "Since we got a bonus week, let me try to screw a few pending fixes.

  A slightly large fix is the locking fix in ASoC STI driver, but it's
  pretty board-specific, and the risk is fairly low.

  All the rest are small / trivial fixes, mostly marked as stable, for
  ALSA sequencer core, ASoC topology, ASoC Intel bytcr and Firewire
  drivers"

* tag 'sound-4.11' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound:
  ASoC: intel: Fix PM and non-atomic crash in bytcr drivers
  ALSA: firewire-lib: fix inappropriate assignment between signed/unsigned type
  ALSA: seq: Don't break snd_use_lock_sync() loop by timeout
  ASoC: topology: Fix to store enum text values
  ASoC: STI: Fix null ptr deference in IRQ handler
  ALSA: oxfw: fix regression to handle Stanton SCS.1m/1d

7 years agoMerge tag 'iwlwifi-next-for-kalle-2017-04-26' of git://git.kernel.org/pub/scm/linux...
Kalle Valo [Wed, 26 Apr 2017 11:21:00 +0000 (14:21 +0300)]
Merge tag 'iwlwifi-next-for-kalle-2017-04-26' of git://git.kernel.org/pub/scm/linux/kernel/git/iwlwifi/iwlwifi-next

One more pull-request intended for 4.12.  These are the changes:

 * The firmware for 7265D and 3168 NICs is frozen at version 29;
 * Sari continues working heavily on support for A000 series;
 * A bunch of fixes;
 * Some cleanups here and there;

7 years agobrcmfmac: Make skb header writable before use
James Hughes [Tue, 25 Apr 2017 09:15:06 +0000 (10:15 +0100)]
brcmfmac: Make skb header writable before use

The driver was making changes to the skb_header without
ensuring it was writable (i.e. uncloned).
This patch also removes some boiler plate header size
checking/adjustment code as that is also handled by the
skb_cow_header function used to make header writable.

Signed-off-by: James Hughes <[email protected]>
Acked-by: Arend van Spriel <[email protected]>
Signed-off-by: Kalle Valo <[email protected]>
7 years agobrcmfmac: Ensure pointer correctly set if skb data location changes
James Hughes [Mon, 24 Apr 2017 11:40:50 +0000 (12:40 +0100)]
brcmfmac: Ensure pointer correctly set if skb data location changes

The incoming skb header may be resized if header space is
insufficient, which might change the data adddress in the skb.
Ensure that a cached pointer to that data is correctly set by
moving assignment to after any possible changes.

Signed-off-by: James Hughes <[email protected]>
Acked-by: Arend van Spriel <[email protected]>
Signed-off-by: Kalle Valo <[email protected]>
7 years agorndis_wlan: add return value validation
Pan Bian [Mon, 24 Apr 2017 00:40:28 +0000 (08:40 +0800)]
rndis_wlan: add return value validation

Function create_singlethread_workqueue() will return a NULL pointer if
there is no enough memory, and its return value should be validated
before using. However, in function rndis_wlan_bind(), its return value
is not checked. This may cause NULL dereference bugs. This patch fixes
it.

Signed-off-by: Pan Bian <[email protected]>
Signed-off-by: Kalle Valo <[email protected]>
7 years agolibertas: check return value of alloc_workqueue
Pan Bian [Sun, 23 Apr 2017 13:19:38 +0000 (21:19 +0800)]
libertas: check return value of alloc_workqueue

Function alloc_workqueue() will return a NULL pointer if there is no
enough memory, and its return value should be validated before using.
However, in function if_spi_probe(), its return value is not checked.
This may result in a NULL dereference bug. This patch fixes the bug.

Signed-off-by: Pan Bian <[email protected]>
Signed-off-by: Kalle Valo <[email protected]>
7 years agomt7601u: check return value of alloc_skb
Pan Bian [Sun, 23 Apr 2017 07:00:23 +0000 (15:00 +0800)]
mt7601u: check return value of alloc_skb

Function alloc_skb() will return a NULL pointer if there is no enough
memory. However, in function mt7601u_mcu_msg_alloc(), its return value
is not validated before it is used. This patch fixes it.

Signed-off-by: Pan Bian <[email protected]>
Acked-by: Jakub Kicinski <[email protected]>
Signed-off-by: Kalle Valo <[email protected]>
7 years agoorinoco_usb: Fix buffer on stack
Maksim Salau [Sat, 22 Apr 2017 17:03:06 +0000 (20:03 +0300)]
orinoco_usb: Fix buffer on stack

Allocate buffer on HEAP instead of STACK for a local variable
that is to be sent using usb_control_msg().

Signed-off-by: Maksim Salau <[email protected]>
Signed-off-by: Kalle Valo <[email protected]>
7 years agoorinoco: fix spelling mistake: "Registerred" -> "Registered"
Colin Ian King [Sat, 22 Apr 2017 13:21:49 +0000 (14:21 +0100)]
orinoco: fix spelling mistake: "Registerred" -> "Registered"

trivial fix to spelling mistake in dbg_dbg message

Signed-off-by: Colin Ian King <[email protected]>
Signed-off-by: Kalle Valo <[email protected]>
7 years agortlwifi: rtl8821ae: setup 8812ae RFE according to device type
Larry Finger [Mon, 17 Apr 2017 00:32:07 +0000 (19:32 -0500)]
rtlwifi: rtl8821ae: setup 8812ae RFE according to device type

Current channel switch implementation sets 8812ae RFE reg value assuming
that device always has type 2.

Extend possible RFE types set and write corresponding reg values.

Source for new code is
http://dlcdnet.asus.com/pub/ASUS/wireless/PCE-AC51/DR_PCE_AC51_20232801152016.zip

Signed-off-by: Maxim Samoylov <[email protected]>
Signed-off-by: Larry Finger <[email protected]>
Cc: Stable <[email protected]>
Cc: Yan-Hsuan Chuang <[email protected]>
Cc: Pkshih <[email protected]>
Cc: Birming Chiu <[email protected]>
Cc: Shaofu <[email protected]>
Cc: Steven Ting <[email protected]>
Signed-off-by: Kalle Valo <[email protected]>
7 years agoMerge tag 'arc-4.11-final' of git://git.kernel.org/pub/scm/linux/kernel/git/vgupta/arc
Linus Torvalds [Tue, 25 Apr 2017 21:07:24 +0000 (14:07 -0700)]
Merge tag 'arc-4.11-final' of git://git.kernel.org/pub/scm/linux/kernel/git/vgupta/arc

Pull ARC fix from Vineet Gupta:
 "Last minute fixes for ARC:

   - build error in Mellanox nps platform

   - addressing lack of saving FPU regs in releavnt configs"

* tag 'arc-4.11-final' of git://git.kernel.org/pub/scm/linux/kernel/git/vgupta/arc:
  ARCv2: entry: save Accumulator register pair (r58:59) if present
  ARC: [plat-eznps] Fix build error

7 years agonet: move xdp_prog field in RX cache lines
Eric Dumazet [Tue, 25 Apr 2017 18:36:52 +0000 (11:36 -0700)]
net: move xdp_prog field in RX cache lines

(struct net_device, xdp_prog) field should be moved in RX cache lines,
reducing latencies when a single packet is received on idle host,
since netif_elide_gro() needs it.

Signed-off-by: Eric Dumazet <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
7 years agoiwlwifi: adjust NVM parsing APIs for new a000 method
Sara Sharon [Sun, 8 Jan 2017 14:45:46 +0000 (16:45 +0200)]
iwlwifi: adjust NVM parsing APIs for new a000 method

In a000 devices we will get all nvm data from the firmware,
and can save most of the parsing.
Export two APIs that op mode will still use.
Adjust API of init_sbands to be independent of NVM file structure
so it can be used by op mode as well.

Signed-off-by: Sara Sharon <[email protected]>
Signed-off-by: Luca Coelho <[email protected]>
7 years agoiwlwifi: pcie: apply no-reclaim logic only to group 0
Johannes Berg [Mon, 6 Mar 2017 14:49:00 +0000 (15:49 +0100)]
iwlwifi: pcie: apply no-reclaim logic only to group 0

When applying no-reclaim logic to commands other than the group
zero for legacy commands, commands such as 0x1c (TX_CMD in group
0) can't be used in any other group. Fix that by applying this
logic only for group 0 - it's not and should never be needed for
any other groups.

Reported-by: Sharon Dvir <[email protected]>
Reported-by: Shaul Triebitz <[email protected]>
Signed-off-by: Johannes Berg <[email protected]>
Signed-off-by: Luca Coelho <[email protected]>
7 years agoiwlwifi: mvm: memset binding before setting values
Sara Sharon [Sun, 5 Mar 2017 16:35:02 +0000 (18:35 +0200)]
iwlwifi: mvm: memset binding before setting values

The changes in commit 9415af7f306b ("iwlwifi: mvm: support new binding
API") assigned values that were later memset to 0.  Move the memset
earlier.

Fixes: 9415af7f306b ("iwlwifi: mvm: support new binding API")
Signed-off-by: Sara Sharon <[email protected]>
Signed-off-by: Luca Coelho <[email protected]>
7 years agoiwlwifi: rename wait_for_tx_queues_empty
Sara Sharon [Sun, 5 Mar 2017 09:38:58 +0000 (11:38 +0200)]
iwlwifi: rename wait_for_tx_queues_empty

Rename current wait_tx_queue_empty to wait_tx_queues_empty since
it waits for multiple queues (up to 32).
Next patch will add a wait for single TX queue which is needed for
gen2 to be scalable for 512.

Signed-off-by: Sara Sharon <[email protected]>
Signed-off-by: Luca Coelho <[email protected]>
7 years agoiwlwifi: move to 512 queues
Sara Sharon [Thu, 23 Feb 2017 12:19:45 +0000 (14:19 +0200)]
iwlwifi: move to 512 queues

Avoid using the old define since it will enlarge necessary
structs for previous HW.

Signed-off-by: Sara Sharon <[email protected]>
Signed-off-by: Luca Coelho <[email protected]>
7 years agoiwlwifi: mvm: support station type API
Sara Sharon [Mon, 6 Feb 2017 17:09:32 +0000 (19:09 +0200)]
iwlwifi: mvm: support station type API

Support change to ADD_STA API to support station types.
Each station is assigned its type.
This simplifies FW handling of the broadcast and multicast
stations:
* broadcast station is identified by its type and not the mac
  address.
* multicast queue is no longer treated differently. The opening
  and closing of it is done by referring to its station.
  There is no need to specify it in the MAC command.
* When disabling TX to all station driver can disable the traffic
  on multicast station, so FW doesn't have to do it.
Change is backward compatible.
Change the order of adding and removing the stations according to
FW requirements.

Signed-off-by: Sara Sharon <[email protected]>
Signed-off-by: Luca Coelho <[email protected]>
7 years agoiwlwifi: mvm: remove references to queue_info in new TX path
Sara Sharon [Thu, 23 Feb 2017 11:15:07 +0000 (13:15 +0200)]
iwlwifi: mvm: remove references to queue_info in new TX path

Most of the fields aren't needed in new TX path.
Enlarging the struct to 512 queues will consume a lot of memory.
Remove all references to the struct in the new TX path.
Move mac80211 queue mapping outside, since it will be needed per
queue for TVQM mode.
Add warning in paths that shouldn't be hit.

Signed-off-by: Sara Sharon <[email protected]>
Signed-off-by: Luca Coelho <[email protected]>
7 years agoiwlwifi: gen2: support nmi triggering from host
Liad Kaufman [Tue, 28 Feb 2017 15:15:47 +0000 (17:15 +0200)]
iwlwifi: gen2: support nmi triggering from host

For gen2 there is a new register.

Signed-off-by: Liad Kaufman <[email protected]>
Signed-off-by: Luca Coelho <[email protected]>
7 years agoiwlwifi: remove module loading failure message
Johannes Berg [Tue, 28 Feb 2017 21:45:25 +0000 (22:45 +0100)]
iwlwifi: remove module loading failure message

When CONFIG_DEBUG_TEST_DRIVER_REMOVE is set, iwlwifi crashes
when the opmode module cannot be loaded, due to completing
the completion before using drv->dev, which can then already
be freed.

Fix this by removing the (fairly useless) message. Moving the
completion later causes a deadlock instead, so that's not an
option.

Signed-off-by: Johannes Berg <[email protected]>
Signed-off-by: Luca Coelho <[email protected]>
7 years agoiwlwifi: don't leak memory on allocation failure
Johannes Berg [Tue, 28 Feb 2017 15:44:16 +0000 (16:44 +0100)]
iwlwifi: don't leak memory on allocation failure

If we fail to allocate the small chunk of memory for the
pieces of the firmware file, we leak the whole firmware
image instead...

Since the allocation failure is really unlikely, just bail
out at that point instead.

Remove the error message at the label since we now (and
actually have been) use it for various reasons.

Signed-off-by: Johannes Berg <[email protected]>
Signed-off-by: Luca Coelho <[email protected]>
7 years agoiwlwifi: pcie: remove superfluous trans->dev assignment
Johannes Berg [Tue, 28 Feb 2017 15:42:10 +0000 (16:42 +0100)]
iwlwifi: pcie: remove superfluous trans->dev assignment

This struct member is already assigned in the previous
call to iwl_trans_alloc(), so assigning the same value
again is superfluous - remove it.

Signed-off-by: Johannes Berg <[email protected]>
Signed-off-by: Luca Coelho <[email protected]>
7 years agoiwlwifi: mvm: use defines instead of variables for shared dwell times
Sara Sharon [Wed, 22 Feb 2017 10:08:19 +0000 (12:08 +0200)]
iwlwifi: mvm: use defines instead of variables for shared dwell times

Most of the dwells are constant across different scan types.
Use defines instead of depending on scan type.
This is needed as preparation to having different scan type per
band.

Signed-off-by: Sara Sharon <[email protected]>
Signed-off-by: Luca Coelho <[email protected]>
7 years agoiwlwifi: mvm: remove color definition
Sara Sharon [Thu, 23 Feb 2017 20:42:01 +0000 (22:42 +0200)]
iwlwifi: mvm: remove color definition

We use the full station field as sta_id, and never
use the color.
FW are about to clean the color out, so those defines
are incorrect now (and were redundant before).

Signed-off-by: Sara Sharon <[email protected]>
Signed-off-by: Luca Coelho <[email protected]>
7 years agoiwlwifi: mvm: move internally to use bigger INVALID_TXQ
Sara Sharon [Wed, 22 Feb 2017 17:34:17 +0000 (19:34 +0200)]
iwlwifi: mvm: move internally to use bigger INVALID_TXQ

We can't use IEEE80211_INVAL_HW_QUEUE to mark a queue as
invalid since 255 will be a valid value for a TVQM queue
index.
Use IWL_MVM_INVALID_QUEUE instead for accessing txq_id.
reserved_queue can stay a u8 since reserved_queue is not
used when TVQM is enabled.

Signed-off-by: Sara Sharon <[email protected]>
Signed-off-by: Luca Coelho <[email protected]>
7 years agomac80211: rewrite monitor mode delivery logic
Johannes Berg [Thu, 13 Apr 2017 13:50:27 +0000 (15:50 +0200)]
mac80211: rewrite monitor mode delivery logic

The monitor mode delivery logic makes it hard to add any
kind of filtering in an efficient way, because the monitor
SKB is created first and then passed to all interfaces.

Rewrite the logic to create the monitor SKB the first time
it's actually needed, and then keep delivering it.

Signed-off-by: Johannes Berg <[email protected]>
7 years agocfg80211: Fix dfs state propagation for non-DFS center channel
Vasanthakumar Thiagarajan [Tue, 18 Apr 2017 12:09:19 +0000 (17:39 +0530)]
cfg80211: Fix dfs state propagation for non-DFS center channel

When part of a bigger bandwidth (160 MHz) channel falls in DFS
channel range it is possible that the  center frequency may not
necessarily be a radar channel. Remove the sanity check on channel
flag for IEEE80211_CHAN_RADAR in regulatory_propagate_dfs_state(),
this should fix the dfs state propagation for non-DFS center freq
which has DFS channels in it's bandwidth, should also fix unnecessary
WARN_ON() spam in regulatory_propagate_dfs_state().

Fixes: 8976672736d6 ("cfg80211: Share Channel DFS state across wiphys of same DFS domain")
Reported-by: Johannes Berg <[email protected]>
Signed-off-by: Vasanthakumar Thiagarajan <[email protected]>
Signed-off-by: Johannes Berg <[email protected]>
7 years agoiwlwifi: mvm: map cab_queue to different txq_id
Sara Sharon [Wed, 22 Feb 2017 17:35:10 +0000 (19:35 +0200)]
iwlwifi: mvm: map cab_queue to different txq_id

cab_queue can now get bigger than u8, since in TVQM we will support
512 queues..
Support it by maintaining internal mapping between the actual number
and mac80211 queue (IWL_MVM_DQA_GCAST_QUEUE).
For pre-a000 the internal queue will be the same as the mac80211
queue.

Signed-off-by: Sara Sharon <[email protected]>
Signed-off-by: Luca Coelho <[email protected]>
7 years agoiwlwifi: mvm: Ignore wifi mcc update in the driver while associated
Haim Dreyfuss [Thu, 2 Feb 2017 12:49:50 +0000 (14:49 +0200)]
iwlwifi: mvm: Ignore wifi mcc update in the driver while associated

Wifi mcc (mobile country code) update is forbidden while associated.
Currently, FW prevents these updates and the driver is unaware to
this logic. From now on, the FW sends every wifi mcc update to the
driver. The driver in his turn needs to decide whether to
ignore it or not, depends on the association state.

Signed-off-by: Haim Dreyfuss <[email protected]>
Signed-off-by: Luca Coelho <[email protected]>
7 years agoiwlwifi: mvm: don't reserve queue in TVQM mode
Sara Sharon [Wed, 22 Feb 2017 17:40:55 +0000 (19:40 +0200)]
iwlwifi: mvm: don't reserve queue in TVQM mode

The reserved queue is never used, save the trouble.

Signed-off-by: Sara Sharon <[email protected]>
Signed-off-by: Luca Coelho <[email protected]>
7 years agoiwlwifi: pcie: support debug applying on a000 hw
Liad Kaufman [Wed, 22 Feb 2017 12:39:10 +0000 (14:39 +0200)]
iwlwifi: pcie: support debug applying on a000 hw

Allow configuring debug destination on a000 HW.

Signed-off-by: Liad Kaufman <[email protected]>
Signed-off-by: Luca Coelho <[email protected]>
7 years agoiwlwifi: mvm: avoid variable shadowing
Johannes Berg [Fri, 24 Feb 2017 11:02:22 +0000 (12:02 +0100)]
iwlwifi: mvm: avoid variable shadowing

Remove an extra variable 'queue' that already exists.
Also, since there are no code paths that use 'queue'
without intializing it, remove the unnecessary zero
initialization.

Signed-off-by: Johannes Berg <[email protected]>
Signed-off-by: Luca Coelho <[email protected]>
7 years agoiwlwifi: mvm: freeze 7265D and 3168 on API version 29
Dor Shaish [Mon, 20 Feb 2017 14:05:57 +0000 (16:05 +0200)]
iwlwifi: mvm: freeze 7265D and 3168 on API version 29

iwl7265D and iwl3168 are frozen on API version 29.
Set the MAX API allowed level to 29 from now on.

Signed-off-by: Dor Shaish <[email protected]>
Signed-off-by: Luca Coelho <[email protected]>
7 years agonet/packet: check length in getsockopt() called with PACKET_HDRLEN
Alexander Potapenko [Tue, 25 Apr 2017 16:51:46 +0000 (18:51 +0200)]
net/packet: check length in getsockopt() called with PACKET_HDRLEN

In the case getsockopt() is called with PACKET_HDRLEN and optlen < 4
|val| remains uninitialized and the syscall may behave differently
depending on its value, and even copy garbage to userspace on certain
architectures. To fix this we now return -EINVAL if optlen is too small.

This bug has been detected with KMSAN.

Signed-off-by: Alexander Potapenko <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
7 years agonet: ipv6: regenerate host route if moved to gc list
David Ahern [Tue, 25 Apr 2017 16:17:29 +0000 (09:17 -0700)]
net: ipv6: regenerate host route if moved to gc list

Taking down the loopback device wreaks havoc on IPv6 routing. By
extension, taking down a VRF device wreaks havoc on its table.

Dmitry and Andrey both reported heap out-of-bounds reports in the IPv6
FIB code while running syzkaller fuzzer. The root cause is a dead dst
that is on the garbage list gets reinserted into the IPv6 FIB. While on
the gc (or perhaps when it gets added to the gc list) the dst->next is
set to an IPv4 dst. A subsequent walk of the ipv6 tables causes the
out-of-bounds access.

Andrey's reproducer was the key to getting to the bottom of this.

With IPv6, host routes for an address have the dst->dev set to the
loopback device. When the 'lo' device is taken down, rt6_ifdown initiates
a walk of the fib evicting routes with the 'lo' device which means all
host routes are removed. That process moves the dst which is attached to
an inet6_ifaddr to the gc list and marks it as dead.

The recent change to keep global IPv6 addresses added a new function,
fixup_permanent_addr, that is called on admin up. That function restarts
dad for an inet6_ifaddr and when it completes the host route attached
to it is inserted into the fib. Since the route was marked dead and
moved to the gc list, re-inserting the route causes the reported
out-of-bounds accesses. If the device with the address is taken down
or the address is removed, the WARN_ON in fib6_del is triggered.

All of those faults are fixed by regenerating the host route if the
existing one has been moved to the gc list, something that can be
determined by checking if the rt6i_ref counter is 0.

Fixes: f1705ec197e7 ("net: ipv6: Make address flushing on ifdown optional")
Reported-by: Dmitry Vyukov <[email protected]>
Reported-by: Andrey Konovalov <[email protected]>
Signed-off-by: David Ahern <[email protected]>
Acked-by: Martin KaFai Lau <[email protected]>
Acked-by: Eric Dumazet <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
7 years agobridge: move bridge multicast cleanup to ndo_uninit
Xin Long [Tue, 25 Apr 2017 14:58:37 +0000 (22:58 +0800)]
bridge: move bridge multicast cleanup to ndo_uninit

During removing a bridge device, if the bridge is still up, a new mdb entry
still can be added in br_multicast_add_group() after all mdb entries are
removed in br_multicast_dev_del(). Like the path:

  mld_ifc_timer_expire ->
    mld_sendpack -> ...
      br_multicast_rcv ->
        br_multicast_add_group

The new mp's timer will be set up. If the timer expires after the bridge
is freed, it may cause use-after-free panic in br_multicast_group_expired.

BUG: unable to handle kernel NULL pointer dereference at 0000000000000048
IP: [<ffffffffa07ed2c8>] br_multicast_group_expired+0x28/0xb0 [bridge]
Call Trace:
 <IRQ>
 [<ffffffff81094536>] call_timer_fn+0x36/0x110
 [<ffffffffa07ed2a0>] ? br_mdb_free+0x30/0x30 [bridge]
 [<ffffffff81096967>] run_timer_softirq+0x237/0x340
 [<ffffffff8108dcbf>] __do_softirq+0xef/0x280
 [<ffffffff8169889c>] call_softirq+0x1c/0x30
 [<ffffffff8102c275>] do_softirq+0x65/0xa0
 [<ffffffff8108e055>] irq_exit+0x115/0x120
 [<ffffffff81699515>] smp_apic_timer_interrupt+0x45/0x60
 [<ffffffff81697a5d>] apic_timer_interrupt+0x6d/0x80

Nikolay also found it would cause a memory leak - the mdb hash is
reallocated and not freed due to the mdb rehash.

unreferenced object 0xffff8800540ba800 (size 2048):
  backtrace:
    [<ffffffff816e2287>] kmemleak_alloc+0x67/0xc0
    [<ffffffff81260bea>] __kmalloc+0x1ba/0x3e0
    [<ffffffffa05c60ee>] br_mdb_rehash+0x5e/0x340 [bridge]
    [<ffffffffa05c74af>] br_multicast_new_group+0x43f/0x6e0 [bridge]
    [<ffffffffa05c7aa3>] br_multicast_add_group+0x203/0x260 [bridge]
    [<ffffffffa05ca4b5>] br_multicast_rcv+0x945/0x11d0 [bridge]
    [<ffffffffa05b6b10>] br_dev_xmit+0x180/0x470 [bridge]
    [<ffffffff815c781b>] dev_hard_start_xmit+0xbb/0x3d0
    [<ffffffff815c8743>] __dev_queue_xmit+0xb13/0xc10
    [<ffffffff815c8850>] dev_queue_xmit+0x10/0x20
    [<ffffffffa02f8d7a>] ip6_finish_output2+0x5ca/0xac0 [ipv6]
    [<ffffffffa02fbfc6>] ip6_finish_output+0x126/0x2c0 [ipv6]
    [<ffffffffa02fc245>] ip6_output+0xe5/0x390 [ipv6]
    [<ffffffffa032b92c>] NF_HOOK.constprop.44+0x6c/0x240 [ipv6]
    [<ffffffffa032bd16>] mld_sendpack+0x216/0x3e0 [ipv6]
    [<ffffffffa032d5eb>] mld_ifc_timer_expire+0x18b/0x2b0 [ipv6]

This could happen when ip link remove a bridge or destroy a netns with a
bridge device inside.

With Nikolay's suggestion, this patch is to clean up bridge multicast in
ndo_uninit after bridge dev is shutdown, instead of br_dev_delete, so
that netif_running check in br_multicast_add_group can avoid this issue.

v1->v2:
  - fix this issue by moving br_multicast_dev_del to ndo_uninit, instead
    of calling dev_close in br_dev_delete.

(NOTE: Depends upon b6fe0440c637 ("bridge: implement missing ndo_uninit()"))

Fixes: e10177abf842 ("bridge: multicast: fix handling of temp and perm entries")
Reported-by: Jianwen Ji <[email protected]>
Signed-off-by: Xin Long <[email protected]>
Reviewed-by: Stephen Hemminger <[email protected]>
Signed-off-by: Nikolay Aleksandrov <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
7 years agoipv6: fix source routing
Sabrina Dubroca [Tue, 25 Apr 2017 13:56:50 +0000 (15:56 +0200)]
ipv6: fix source routing

Commit a149e7c7ce81 ("ipv6: sr: add support for SRH injection through
setsockopt") introduced handling of IPV6_SRCRT_TYPE_4, but at the same
time restricted it to only IPV6_SRCRT_TYPE_0 and
IPV6_SRCRT_TYPE_4. Previously, ipv6_push_exthdr() and fl6_update_dst()
would also handle other values (ie STRICT and TYPE_2).

Restore previous source routing behavior, by handling IPV6_SRCRT_STRICT
and IPV6_SRCRT_TYPE_2 the same way as IPV6_SRCRT_TYPE_0 in
ipv6_push_exthdr() and fl6_update_dst().

Fixes: a149e7c7ce81 ("ipv6: sr: add support for SRH injection through setsockopt")
Signed-off-by: Sabrina Dubroca <[email protected]>
Reviewed-by: Hannes Frederic Sowa <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
7 years agodrivers: net: xgene-v2: Fix error return code in xge_mdio_config()
Wei Yongjun [Tue, 25 Apr 2017 11:36:50 +0000 (11:36 +0000)]
drivers: net: xgene-v2: Fix error return code in xge_mdio_config()

Fix to return error code -ENODEV from the no PHY found error
handling case instead of 0, as done elsewhere in this function.

Signed-off-by: Wei Yongjun <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
7 years agonet: Generic XDP
David S. Miller [Tue, 18 Apr 2017 19:36:58 +0000 (15:36 -0400)]
net: Generic XDP

This provides a generic SKB based non-optimized XDP path which is used
if either the driver lacks a specific XDP implementation, or the user
requests it via a new IFLA_XDP_FLAGS value named XDP_FLAGS_SKB_MODE.

It is arguable that perhaps I should have required something like
this as part of the initial XDP feature merge.

I believe this is critical for two reasons:

1) Accessibility.  More people can play with XDP with less
   dependencies.  Yes I know we have XDP support in virtio_net, but
   that just creates another depedency for learning how to use this
   facility.

   I wrote this to make life easier for the XDP newbies.

2) As a model for what the expected semantics are.  If there is a pure
   generic core implementation, it serves as a semantic example for
   driver folks adding XDP support.

One thing I have not tried to address here is the issue of
XDP_PACKET_HEADROOM, thanks to Daniel for spotting that.  It seems
incredibly expensive to do a skb_cow(skb, XDP_PACKET_HEADROOM) or
whatever even if the XDP program doesn't try to push headers at all.
I think we really need the verifier to somehow propagate whether
certain XDP helpers are used or not.

v5:
 - Handle both negative and positive offset after running prog
 - Fix mac length in XDP_TX case (Alexei)
 - Use rcu_dereference_protected() in free_netdev (kbuild test robot)

v4:
 - Fix MAC header adjustmnet before calling prog (David Ahern)
 - Disable LRO when generic XDP is installed (Michael Chan)
 - Bypass qdisc et al. on XDP_TX and record the event (Alexei)
 - Do not perform generic XDP on reinjected packets (DaveM)

v3:
 - Make sure XDP program sees packet at MAC header, push back MAC
   header if we do XDP_TX.  (Alexei)
 - Elide GRO when generic XDP is in use.  (Alexei)
 - Add XDP_FLAG_SKB_MODE flag which the user can use to request generic
   XDP even if the driver has an XDP implementation.  (Alexei)
 - Report whether SKB mode is in use in rtnl_xdp_fill() via XDP_FLAGS
   attribute.  (Daniel)

v2:
 - Add some "fall through" comments in switch statements based
   upon feedback from Andrew Lunn
 - Use RCU for generic xdp_prog, thanks to Johannes Berg.

Tested-by: Andy Gospodarek <[email protected]>
Tested-by: Jesper Dangaard Brouer <[email protected]>
Tested-by: David Ahern <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
7 years agoqed: fix invalid use of sizeof in qed_alloc_qm_data()
Wei Yongjun [Tue, 25 Apr 2017 07:07:18 +0000 (07:07 +0000)]
qed: fix invalid use of sizeof in qed_alloc_qm_data()

sizeof() when applied to a pointer typed expression gives the
size of the pointer, not that of the pointed data.

Fixes: b5a9ee7cf3be ("qed: Revise QM configuration")
Signed-off-by: Wei Yongjun <[email protected]>
Acked-by: Yuval Mintz <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
7 years agoqed: Fix error in the dcbx app meta data initialization.
[email protected] [Tue, 25 Apr 2017 03:59:10 +0000 (20:59 -0700)]
qed: Fix error in the dcbx app meta data initialization.

DCBX app_data array is initialized with the incorrect values for
personality field. This would  prevent offloaded protocols from
honoring the PFC.

Signed-off-by: Sudarsana Reddy Kalluru <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
7 years agobpf: map_get_next_key to return first key on NULL
Teng Qin [Tue, 25 Apr 2017 02:00:37 +0000 (19:00 -0700)]
bpf: map_get_next_key to return first key on NULL

When iterating through a map, we need to find a key that does not exist
in the map so map_get_next_key will give us the first key of the map.
This often requires a lot of guessing in production systems.

This patch makes map_get_next_key return the first key when the key
pointer in the parameter is NULL.

Signed-off-by: Teng Qin <[email protected]>
Signed-off-by: Alexei Starovoitov <[email protected]>
Acked-by: Daniel Borkmann <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
7 years agonetvsc: fix calculation of available send sections
stephen hemminger [Tue, 25 Apr 2017 01:33:38 +0000 (18:33 -0700)]
netvsc: fix calculation of available send sections

My change (introduced in 4.11) to use find_first_clear_bit
incorrectly assumed that the size argument was words, not bits.
The effect was only a small limited number of the available send
sections were being actually used. This can cause performance loss
with some workloads.

Since map_words is now used only during initialization, it can
be on stack instead of in per-device data.

Fixes: b58a185801da ("netvsc: simplify get next send section")
Signed-off-by: Stephen Hemminger <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
7 years agoselftests/net: Fix broken test case in psock_fanout
Mike Maloney [Tue, 25 Apr 2017 01:29:11 +0000 (21:29 -0400)]
selftests/net: Fix broken test case in psock_fanout

The error return falue form sock_fanout_open is -1, not zero.  One test
case was checking for 0 instead of -1.

Tested: Built and tested in clean client.
Signed-off-by: Mike Maloney <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
7 years agonet: ethernet: ti: netcp_core: remove unused compl queue mapping
Ivan Khoronzhuk [Mon, 24 Apr 2017 20:54:06 +0000 (23:54 +0300)]
net: ethernet: ti: netcp_core: remove unused compl queue mapping

This code is unused and probably was unintentionally left while
moving completion queue mapping in submit function.

Signed-off-by: Ivan Khoronzhuk <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
7 years agonet: hso: fix module unloading
Andreas Kemnade [Mon, 24 Apr 2017 19:18:39 +0000 (21:18 +0200)]
net: hso: fix module unloading

keep tty driver until usb driver is unregistered
rmmod hso
produces traces like this without that:

[40261.645904] usb 2-2: new high-speed USB device number 2 using ehci-omap
[40261.854644] usb 2-2: New USB device found, idVendor=0af0, idProduct=8800
[40261.862609] usb 2-2: New USB device strings: Mfr=3, Product=2, SerialNumber=0
[40261.872772] usb 2-2: Product: Globetrotter HSUPA Modem
[40261.880279] usb 2-2: Manufacturer: Option N.V.
[40262.021270] hso 2-2:1.5: Not our interface
[40265.556945] hso: unloaded
[40265.559875] usbcore: deregistering interface driver hso
[40265.595947] Unable to handle kernel NULL pointer dereference at virtual address 00000033
[40265.604522] pgd = ecb14000
[40265.611877] [00000033] *pgd=00000000
[40265.617034] Internal error: Oops: 5 [#1] PREEMPT SMP ARM
[40265.622650] Modules linked in: hso(-) bnep bluetooth ipv6 arc4 twl4030_madc_hwmon wl18xx wlcore mac80211 cfg80211 snd_soc_simple_card snd_soc_simple_card_utils snd_soc_omap_twl4030 snd_soc_gtm601 generic_adc_battery extcon_gpio omap3_isp videobuf2_dma_contig videobuf2_memops wlcore_sdio videobuf2_v4l2 videobuf2_core ov9650 bmp280_i2c v4l2_common bmp280 bmg160_i2c bmg160_core at24 nvmem_core videodev bmc150_accel_i2c bmc150_magn_i2c media bmc150_accel_core tsc2007 bmc150_magn leds_tca6507 bno055 snd_soc_omap_mcbsp industrialio_triggered_buffer snd_soc_omap kfifo_buf snd_pcm_dmaengine gpio_twl4030 snd_soc_twl4030 twl4030_vibra twl4030_madc wwan_on_off ehci_omap pwm_bl pwm_omap_dmtimer panel_tpo_td028ttec1 encoder_opa362 connector_analog_tv omapdrm drm_kms_helper cfbfillrect syscopyarea cfbimgblt sysfillrect
[40265.698211]  sysimgblt fb_sys_fops cfbcopyarea drm omapdss usb_f_ecm g_ether usb_f_rndis u_ether libcomposite configfs omap2430 phy_twl4030_usb musb_hdrc twl4030_charger industrialio w2sg0004 twl4030_pwrbutton bq27xxx_battery w1_bq27000 omap_hdq [last unloaded: hso]
[40265.723175] CPU: 0 PID: 2701 Comm: rmmod Not tainted 4.11.0-rc6-letux+ #6
[40265.730346] Hardware name: Generic OMAP36xx (Flattened Device Tree)
[40265.736938] task: ecb81100 task.stack: ecb82000
[40265.741729] PC is at cdev_del+0xc/0x2c
[40265.745666] LR is at tty_unregister_device+0x40/0x50
[40265.750915] pc : [<c027472c>]    lr : [<c04b3ecc>]    psr: 600b0113
sp : ecb83ea8  ip : eca4f898  fp : 00000000
[40265.763000] r10: 00000000  r9 : 00000000  r8 : 00000001
[40265.768493] r7 : eca4f800  r6 : 00000003  r5 : 00000000  r4 : ffffffff
[40265.775360] r3 : c1458d54  r2 : 00000000  r1 : 00000004  r0 : ffffffff
[40265.782257] Flags: nZCv  IRQs on  FIQs on  Mode SVC_32  ISA ARM  Segment none
[40265.789764] Control: 10c5387d  Table: acb14019  DAC: 00000051
[40265.795806] Process rmmod (pid: 2701, stack limit = 0xecb82218)
[40265.802062] Stack: (0xecb83ea8 to 0xecb84000)
[40265.806640] 3ea0:                   ec9e8100 c04b3ecc bf737378 ed5b7c00 00000003 bf7327ec
[40265.815277] 3ec0: eca4f800 00000000 ec9fd800 eca4f800 bf737070 bf7328bc eca4f820 c05a9a04
[40265.823883] 3ee0: eca4f820 00000000 00000001 eca4f820 ec9fd870 bf737070 eca4f854 ec9fd8a4
[40265.832519] 3f00: ecb82000 00000000 00000000 c04e6960 eca4f820 bf737070 bf737048 00000081
[40265.841125] 3f20: c01071e4 c04e6a60 ecb81100 bf737070 bf737070 c04e5d94 bf737020 c05a8f88
[40265.849731] 3f40: bf737100 00000800 7f5fa254 00000081 c01071e4 c01c4afc 00000000 006f7368
[40265.858367] 3f60: ecb815f4 00000000 c0cac9c4 c01071e4 ecb82000 00000000 00000000 c01512f4
[40265.866973] 3f80: ed5b3200 c01071e4 7f5fa220 7f5fa220 bea78ec9 0010711c 7f5fa220 7f5fa220
[40265.875579] 3fa0: bea78ec9 c0107040 7f5fa220 7f5fa220 7f5fa254 00000800 dd35b800 dd35b800
[40265.884216] 3fc0: 7f5fa220 7f5fa220 bea78ec9 00000081 bea78dcc 00000000 bea78bd8 00000000
[40265.892822] 3fe0: b6f70521 bea78b6c 7f5dd613 b6f70526 80070030 7f5fa254 ffffffff ffffffff
[40265.901458] [<c027472c>] (cdev_del) from [<c04b3ecc>] (tty_unregister_device+0x40/0x50)
[40265.909942] [<c04b3ecc>] (tty_unregister_device) from [<bf7327ec>] (hso_free_interface+0x80/0x144 [hso])
[40265.919982] [<bf7327ec>] (hso_free_interface [hso]) from [<bf7328bc>] (hso_disconnect+0xc/0x18 [hso])
[40265.929718] [<bf7328bc>] (hso_disconnect [hso]) from [<c05a9a04>] (usb_unbind_interface+0x84/0x200)
[40265.939239] [<c05a9a04>] (usb_unbind_interface) from [<c04e6960>] (device_release_driver_internal+0x138/0x1cc)
[40265.949798] [<c04e6960>] (device_release_driver_internal) from [<c04e6a60>] (driver_detach+0x60/0x6c)
[40265.959503] [<c04e6a60>] (driver_detach) from [<c04e5d94>] (bus_remove_driver+0x64/0x8c)
[40265.968017] [<c04e5d94>] (bus_remove_driver) from [<c05a8f88>] (usb_deregister+0x5c/0xb8)
[40265.976654] [<c05a8f88>] (usb_deregister) from [<c01c4afc>] (SyS_delete_module+0x160/0x1dc)
[40265.985443] [<c01c4afc>] (SyS_delete_module) from [<c0107040>] (ret_fast_syscall+0x0/0x1c)
[40265.994171] Code: c1458d54 e59f3020 e92d4010 e1a04000 (e5941034)
[40266.016693] ---[ end trace 9d5ac43c7e41075c ]---

Signed-off-by: Andreas Kemnade <[email protected]>
Reviewed-by: Johan Hovold <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
7 years agoMerge branch 'qed-vf-tunnel'
David S. Miller [Tue, 25 Apr 2017 15:49:33 +0000 (11:49 -0400)]
Merge branch 'qed-vf-tunnel'

Manish Chopra says:

====================
qed/qede: VF tunnelling support

With this series VFs can run vxlan/geneve/gre tunnels over it.
Please consider applying this series to "net-next"
====================

Signed-off-by: David S. Miller <[email protected]>
7 years agoqed - VF tunnelling support [VXLAN/GENEVE/GRE]
Chopra, Manish [Mon, 24 Apr 2017 17:00:49 +0000 (10:00 -0700)]
qed - VF tunnelling support [VXLAN/GENEVE/GRE]

This patch adds hardware channel APIs support between
VF and PF for tunnelling configuration for the VFs.
According to that configuration VFs can run VXLAN/GENEVE/GRE
tunnels over it with tunnel features offloaded.

Using these APIs VF can also request for UDP ports configuration
to the PF, although PF and it's child VFs share the same port.

Signed-off-by: Manish Chopra <[email protected]>
Signed-off-by: Yuval Mintz <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
7 years agoqed/qede: Add UDP ports in bulletin board
Chopra, Manish [Mon, 24 Apr 2017 17:00:48 +0000 (10:00 -0700)]
qed/qede: Add UDP ports in bulletin board

This patch adds support for UDP ports in bulletin board
to notify UDP ports change to the VFs

Signed-off-by: Manish Chopra <[email protected]>
Signed-off-by: Yuval Mintz <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
7 years agoqede: Configure UDP ports in local context.
Chopra, Manish [Mon, 24 Apr 2017 17:00:47 +0000 (10:00 -0700)]
qede: Configure UDP ports in local context.

This patch configures UDP ports locally instead of
configuring them in deferred context which would be
helpful in synchronizing UDP ports configuration for VFs
which will be enabled in further patches.

Signed-off-by: Manish Chopra <[email protected]>
Signed-off-by: Yuval Mintz <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
7 years agoqede: Disable tunnel offloads for non offloaded UDP ports
Chopra, Manish [Mon, 24 Apr 2017 17:00:46 +0000 (10:00 -0700)]
qede: Disable tunnel offloads for non offloaded UDP ports

This patch disables tunnel offloads via ndo_features_check()
if given UDP port is not offloaded to hardware. This in turn
allows to run multiple tunnel interfaces using different UDP ports.

Signed-off-by: Manish Chopra <[email protected]>
Signed-off-by: Yuval Mintz <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
7 years agoqed/qede: Enable tunnel offloads based on hw configuration
Chopra, Manish [Mon, 24 Apr 2017 17:00:45 +0000 (10:00 -0700)]
qed/qede: Enable tunnel offloads based on hw configuration

This patch enables tunnel feature offloads based on hw configuration
at initialization time instead of enabling them always.

Signed-off-by: Manish Chopra <[email protected]>
Signed-off-by: Yuval Mintz <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
7 years agoqed: refactor tunnelling - API/Structs
Chopra, Manish [Mon, 24 Apr 2017 17:00:44 +0000 (10:00 -0700)]
qed: refactor tunnelling - API/Structs

This patch changes the tunnel APIs to use per tunnel
info instead of using bitmasks for all tunnels and also
uses single struct to hold the data to prepare multiple
variant of tunnel configuration ramrods to be sent to the hardware.

Signed-off-by: Manish Chopra <[email protected]>
Signed-off-by: Yuval Mintz <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
7 years agotipc: fix socket flow control accounting error at tipc_recv_stream
Parthasarathy Bhuvaragan [Mon, 24 Apr 2017 13:00:43 +0000 (15:00 +0200)]
tipc: fix socket flow control accounting error at tipc_recv_stream

Until now in tipc_recv_stream(), we update the received
unacknowledged bytes based on a stack variable and not based on the
actual message size.
If the user buffer passed at tipc_recv_stream() is smaller than the
received skb, the size variable in stack differs from the actual
message size in the skb. This leads to a flow control accounting
error causing permanent congestion.

In this commit, we fix this accounting error by always using the
size of the incoming message.

Fixes: 10724cc7bb78 ("tipc: redesign connection-level flow control")
Signed-off-by: Parthasarathy Bhuvaragan <[email protected]>
Reviewed-by: Jon Maloy <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
7 years agotipc: fix socket flow control accounting error at tipc_send_stream
Parthasarathy Bhuvaragan [Mon, 24 Apr 2017 13:00:42 +0000 (15:00 +0200)]
tipc: fix socket flow control accounting error at tipc_send_stream

Until now in tipc_send_stream(), we return -1 when the socket
encounters link congestion even if the socket had successfully
sent partial data. This is incorrect as the application resends
the same the partial data leading to data corruption at
receiver's end.

In this commit, we return the partially sent bytes as the return
value at link congestion.

Fixes: 10724cc7bb78 ("tipc: redesign connection-level flow control")
Signed-off-by: Parthasarathy Bhuvaragan <[email protected]>
Reviewed-by: Jon Maloy <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
7 years agoMerge tag 'asoc-fix-v4.11-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/broon...
Takashi Iwai [Tue, 25 Apr 2017 15:43:56 +0000 (17:43 +0200)]
Merge tag 'asoc-fix-v4.11-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound into for-linus

ASoC: Fixes for v4.11

A few last minute fixes for v4.11, the STI fix is relatively large but
driver specific and has been cooking in -next for a little while now:

 - A fix from Takashi for some suspend/resume related crashes in the
   Intel drivers.
 - A fix from Mousumi Jana for issues with incorrectly created
   enumeration controls generated from topology files which could cause
   problems for userspace.
 - Fixes from Arnaud Pouliquen for some crashes due to races with the
   interrupt handler in the STI driver.

7 years agoipv6: move stub initialization after ipv6 setup completion
Paolo Abeni [Mon, 24 Apr 2017 12:18:28 +0000 (14:18 +0200)]
ipv6: move stub initialization after ipv6 setup completion

The ipv6 stub pointer is currently initialized before the ipv6
routing subsystem: a 3rd party can access and use such stub
before the routing data is ready.
Moreover, such pointer is not cleared in case of initialization
error, possibly leading to dangling pointers usage.

This change addresses the above moving the stub initialization
at the end of ipv6 init code.

Fixes: 5f81bd2e5d80 ("ipv6: export a stub for IPv6 symbols used by vxlan")
Signed-off-by: Paolo Abeni <[email protected]>
Acked-by: Cong Wang <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
7 years agoMerge branch 'l2tpeth-info'
David S. Miller [Tue, 25 Apr 2017 15:41:57 +0000 (11:41 -0400)]
Merge branch 'l2tpeth-info'

Guillaume Nault says:

====================
l2tp: add informations about l2tpeth interfaces in /sys

Patch #1 lets userspace retrieve the naming scheme of an l2tpeth
interface, using /sys/class/net/<iface>/name_assign_type.

Patch #2 adds the DEVTYPE field in /sys/class/net/<iface>/uevent so
that userspace can reliably know if a device is an l2tpeth interface.
====================

Signed-off-by: David S. Miller <[email protected]>
7 years agol2tp: define "l2tpeth" device type
Guillaume Nault [Mon, 24 Apr 2017 12:16:07 +0000 (14:16 +0200)]
l2tp: define "l2tpeth" device type

Export type of l2tpeth interfaces to userspace
(/sys/class/net/<iface>/uevent).

Signed-off-by: Guillaume Nault <[email protected]>
Acked-by: James Chapman <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
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