Commit Graph

798359 Commits

Author SHA1 Message Date
Yangtao Li
c44c749d3b net: amd: add missing of_node_put()
of_find_node_by_path() acquires a reference to the node
returned by it and that reference needs to be dropped by its caller.
This place doesn't do that, so fix it.

Signed-off-by: Yangtao Li <tiny.windzz@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-11-23 17:24:24 -08:00
David S. Miller
0cb98e8427 Merge branch 'octeontx2-af-CGX-LMAC-link-bringup-and-cleanups'
Linu Cherian says:

====================
octeontx2-af: CGX LMAC link bringup and cleanups

Patch 1: Code cleanup
Patch 2: Adds support for an unhandled hardware configuration
Patch 3: Preparatory patch for enabling cgx lmac links
Patch 4: Support for enabling cgx lmac links
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2018-11-23 17:23:26 -08:00
Linu Cherian
d3b2b9ab1e octeontx2-af: Bringup CGX LMAC links by default
- Added new CGX firmware interface API for sending link up/down
  commands

- Do link up for cgx lmac ports by default at the time of CGX
  driver probe. Since cgx link up in driver probe affects the
  Linux boot time, linkup procedure is kept threaded using
  workqueues.
  For this, a new cgx API cgx_lmac_linkup_start has been added.

Signed-off-by: Linu Cherian <lcherian@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-11-23 17:23:25 -08:00
Linu Cherian
c929323609 octeontx2-af: Unregister cgx event callbacks gracefully
Added provision to unregister cgx event callbacks.
This enables the exit path to ensure event callbacks are
unregistered before workqueues get destroyed.

Signed-off-by: Linu Cherian <lcherian@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-11-23 17:23:25 -08:00
Linu Cherian
12e4c9ab2e octeontx2-af: Handle non-contiguous CGX LMAC interfaces
For this, cgx_id(struct cgx) definition has been changed to
reflect cgx port id instead of device instance id.
Now cgx_id can be directly used as channel offset for NPC configuration.
Assumptions on contiguous cgx port ids has been removed from
nix_calibrate_x2p as well.

As a side effect, allocation of conversion tables that were based
on cgx count are changed to cgx port id max value.
Tables would return NULL for invalid cgx ports.

Signed-off-by: Linu Cherian <lcherian@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-11-23 17:23:25 -08:00
Linu Cherian
44990aaa93 octeontx2-af: Misc cleanups in cgx driver
* Do CGX init before NIX init
  This would add consistency in NIX code that depends on cgx ports

* Few other misc cleanups
  - rvu_cgx_probe renamed as rvu_cgx_init for consistency
  - rvu_cgx_exit wrapper added to take care of the exit path
  - Added error check on cgx_lmac_event_handler_init
  - Minor cleanups in cgx.h related to tab alignment
  - Removed redundant ids from enum cgx_cmd_id

Signed-off-by: Linu Cherian <lcherian@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-11-23 17:23:25 -08:00
Colin Ian King
e159e59287 net: hinic: fix null pointer dereference on pointer hwdev
Pointer hwdev is being dereferenced when declaring hwif , however, later
on hwdev is being null checked, hence we have dereference before null
check error. Fix this by assigning hwif and pdef only once hwdev has
been null checked.

Detected by CoverityScan, CID#1485581 ("Dereference before null check")

Fixes: 4a61abb100 ("net-next/hinic:add rx checksum offload for HiNIC")
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-11-23 17:22:02 -08:00
David S. Miller
b0c4b041e3 Merge branch 'smc-next'
Ursula Braun says:

====================
net/smc: patches 2018-11-22

here are more patches for SMC:
* patches 1-3 and 7 are cleanups without functional change
* patches 4-6 and 8 are optimizations of existing code
* patches 9 and 10 introduce and exploit LLC message DELETE RKEY
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2018-11-23 17:20:33 -08:00
Karsten Graul
c7674c001b net/smc: unregister rkeys of unused buffer
When an rmb is no longer in use by a connection, unregister its rkey at
the remote peer with an LLC DELETE RKEY message. With this change,
unused buffers held in the buffer pool are no longer registered at the
remote peer. They are registered before the buffer is actually used and
unregistered when they are no longer used by a connection.

Signed-off-by: Karsten Graul <kgraul@linux.ibm.com>
Signed-off-by: Ursula Braun <ubraun@linux.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-11-23 17:20:33 -08:00
Karsten Graul
60e03c62c5 net/smc: add infrastructure to send delete rkey messages
Add the infrastructure to send LLC messages of type DELETE RKEY to
unregister a shared memory region at the peer.

Signed-off-by: Karsten Graul <kgraul@linux.ibm.com>
Signed-off-by: Ursula Braun <ubraun@linux.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-11-23 17:20:32 -08:00
Karsten Graul
4600cfc302 net/smc: avoid a delay by waiting for nothing
When a send failed then don't start to wait for a response in
smc_llc_do_confirm_rkey.

Signed-off-by: Karsten Graul <kgraul@linux.ibm.com>
Signed-off-by: Ursula Braun <ubraun@linux.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-11-23 17:20:32 -08:00
Ursula Braun
587e41dcea net/smc: cleanup listen worker mutex unlocking
For easier reading move the unlock of mutex smc_create_lgr_pending into
smc_listen_work(), i.e. into the function the mutex has been locked.
No functional change.

Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Ursula Braun <ubraun@linux.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-11-23 17:20:32 -08:00
Ursula Braun
2b59f58e34 net/smc: short wait for late smc_clc_wait_msg
After sending one of the initial LLC messages CONFIRM LINK or
ADD LINK, there is already a wait for the LLC response. It does
not make sense to wait another long time for a CLC DECLINE. Thus
this patch introduces a shorter wait time for these cases.

Signed-off-by: Ursula Braun <ubraun@linux.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-11-23 17:20:32 -08:00
Ursula Braun
90d8b29cb4 net/smc: no link delete for a never active link
If a link is terminated that has never reached the active state,
there is no need to trigger an LLC DELETE LINK.

Signed-off-by: Ursula Braun <ubraun@linux.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-11-23 17:20:32 -08:00
Ursula Braun
9ed28556a3 net/smc: allow fallback after clc timeouts
If connection initialization fails for the LLC CONFIRM LINK or the
LLC ADD LINK step, fallback to TCP should be enabled. Thus
the negative return code -EAGAIN should switch to a positive timeout
reason code in these cases, and the internal CLC socket should
not have a set sk_err.

Signed-off-by: Ursula Braun <ubraun@linux.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-11-23 17:20:32 -08:00
Ursula Braun
6ae36bff3f net/smc: remove sock_error detour in clc-functions
There is no need to store the return value in sk_err, if it is
afterwards cleared again with sock_error(). This patch sets the
return value directly. Just cleanup, no functional change.

Signed-off-by: Ursula Braun <ubraun@linux.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-11-23 17:20:32 -08:00
Ursula Braun
3f3f0e364e net/smc: make smc_lgr_free() static
smc_lgr_free() is just called inside smc_core.c. Make it static.
Just cleanup, no functional change.

Signed-off-by: Ursula Braun <ubraun@linux.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-11-23 17:20:32 -08:00
Ursula Braun
263ffaeef1 net/smc: cleanup tcp_listen_worker initialization
The tcp_listen_worker is already initialized when socket is
created (in smc_sock_alloc()). Get rid of the duplicate
initialization in smc_listen(). No functional change.

Signed-off-by: Ursula Braun <ubraun@linux.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-11-23 17:20:32 -08:00
Hangbin Liu
5ed9dc9910 team: no need to do team_notify_peers or team_mcast_rejoin when disabling port
team_notify_peers() will send ARP and NA to notify peers. team_mcast_rejoin()
will send multicast join group message to notify peers. We should do this when
enabling/changed to a new port. But it doesn't make sense to do it when a port
is disabled.

On the other hand, when we set mcast_rejoin_count to 2, and do a failover,
team_port_disable() will increase mcast_rejoin.count_pending to 2 and then
team_port_enable() will increase mcast_rejoin.count_pending to 4. We will send
4 mcast rejoin messages at latest, which will make user confused. The same
with notify_peers.count.

Fix it by deleting team_notify_peers() and team_mcast_rejoin() in
team_port_disable().

Reported-by: Liang Li <liali@redhat.com>
Fixes: fc423ff00d ("team: add peer notification")
Fixes: 492b200efd ("team: add support for sending multicast rejoins")
Signed-off-by: Hangbin Liu <liuhangbin@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-11-23 17:18:15 -08:00
YueHaibing
e4a3e9ff5b net: mvneta: remove redundant check for eee->tx_lpi_timer < 0
fixes the smatch warning:

drivers/net/ethernet/marvell/mvneta.c:4252 mvneta_ethtool_set_eee() warn:
 unsigned 'eee->tx_lpi_timer' is never less than zero.

Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Acked-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-11-23 17:17:09 -08:00
David Calavera
197c2dac74 bpf: Add BPF_MAP_TYPE_QUEUE and BPF_MAP_TYPE_STACK to bpftool-map
I noticed that these two new BPF Maps are not defined in bpftool.
This patch defines those two maps and adds their names to the
bpftool-map documentation.

Signed-off-by: David Calavera <david.calavera@gmail.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
2018-11-23 22:42:30 +01:00
Daniel T. Lee
5a86381321 samples: bpf: fix: error handling regarding kprobe_events
Currently, kprobe_events failure won't be handled properly.
Due to calling system() indirectly to write to kprobe_events,
it can't be identified whether an error is derived from kprobe or system.

    // buf = "echo '%c:%s %s' >> /s/k/d/t/kprobe_events"
    err = system(buf);
    if (err < 0) {
        printf("failed to create kprobe ..");
        return -1;
    }

For example, running ./tracex7 sample in ext4 partition,
"echo p:open_ctree open_ctree >> /s/k/d/t/kprobe_events"
gets 256 error code system() failure.
=> The error comes from kprobe, but it's not handled correctly.

According to man of system(3), it's return value
just passes the termination status of the child shell
rather than treating the error as -1. (don't care success)

Which means, currently it's not working as desired.
(According to the upper code snippet)

    ex) running ./tracex7 with ext4 env.
    # Current Output
    sh: echo: I/O error
    failed to open event open_ctree

    # Desired Output
    failed to create kprobe 'open_ctree' error 'No such file or directory'

The problem is, error can't be verified whether from child ps
or system. But using write() directly can verify the command
failure, and it will treat all error as -1. So I suggest using
write() directly to 'kprobe_events' rather than calling system().

Signed-off-by: Daniel T. Lee <danieltimlee@gmail.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
2018-11-23 22:39:09 +01:00
Nikita V. Shirokov
47ae7e3d0b libbpf: make bpf_object__open default to UNSPEC
currently by default libbpf's bpf_object__open requires
bpf's program to specify  version in a code because of two things:
1) default prog type is set to KPROBE
2) KPROBE requires (in kernel/bpf/syscall.c) version to be specified

in this patch i'm changing default prog type to UNSPEC and also changing
requirments for version's section to be present in object file.
now it would reflect what we have today in kernel
(only KPROBE prog type requires for version to be explicitly set).

v1 -> v2:
 - RFC tag has been dropped

Signed-off-by: Nikita V. Shirokov <tehnerd@tehnerd.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
2018-11-23 22:27:05 +01:00
Martynas Pumputis
1efb6ee3ed bpf: fix check of allowed specifiers in bpf_trace_printk
A format string consisting of "%p" or "%s" followed by an invalid
specifier (e.g. "%p%\n" or "%s%") could pass the check which
would make format_decode (lib/vsprintf.c) to warn.

Fixes: 9c959c863f ("tracing: Allow BPF programs to call bpf_trace_printk()")
Reported-by: syzbot+1ec5c5ec949c4adaa0c4@syzkaller.appspotmail.com
Signed-off-by: Martynas Pumputis <m@lambda.lt>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
2018-11-23 21:54:14 +01:00
Jason Wang
18ba58e1c2 virtio-net: fail XDP set if guest csum is negotiated
We don't support partial csumed packet since its metadata will be lost
or incorrect during XDP processing. So fail the XDP set if guest_csum
feature is negotiated.

Fixes: f600b69050 ("virtio_net: Add XDP support")
Reported-by: Jesper Dangaard Brouer <brouer@redhat.com>
Cc: Jesper Dangaard Brouer <brouer@redhat.com>
Cc: Pavel Popa <pashinho1990@gmail.com>
Cc: David Ahern <dsahern@gmail.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-11-23 11:59:40 -08:00
Jason Wang
e59ff2c49a virtio-net: disable guest csum during XDP set
We don't disable VIRTIO_NET_F_GUEST_CSUM if XDP was set. This means we
can receive partial csumed packets with metadata kept in the
vnet_hdr. This may have several side effects:

- It could be overridden by header adjustment, thus is might be not
  correct after XDP processing.
- There's no way to pass such metadata information through
  XDP_REDIRECT to another driver.
- XDP does not support checksum offload right now.

So simply disable guest csum if possible in this the case of XDP.

Fixes: 3f93522ffa ("virtio-net: switch off offloads on demand if possible on XDP set")
Reported-by: Jesper Dangaard Brouer <brouer@redhat.com>
Cc: Jesper Dangaard Brouer <brouer@redhat.com>
Cc: Pavel Popa <pashinho1990@gmail.com>
Cc: David Ahern <dsahern@gmail.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-11-23 11:59:40 -08:00
David S. Miller
9af8009082 Merge branch '1GbE' of git://git.kernel.org/pub/scm/linux/kernel/git/jkirsher/next-queue
Jeff Kirsher says:

====================
Intel Wired LAN Driver Updates 2018-11-21

This series contains updates to all of the Intel LAN drivers and
documentation.

Shannon Nelson updates the ixgbe kernel documentation to include IPsec
hardware offload.

Joe Perches cleans up whitespace issues in the igb driver.

Jesse update the netdev kernel documentation for NETIF_F_GSO_UDP_L4 to
align with the actual code.  Also aligned all the NAPI driver code for
all of the Intel drivers to implement the recommendations of Eric
Dumazet to check the return code of the napi_complete_done() to
determine whether or not to enable interrupts or exit poll.

Paul E. McKenney replaces synchronize_sched() with synchronize_rcu() for
ixgbe.

Sasha implements suggestions made by Joe Perches to remove obsolete code
and to use the dev_err() method.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2018-11-23 11:33:54 -08:00
Eric Dumazet
42519ede4f net-gro: use ffs() to speedup napi_gro_flush()
We very often have few flows/chains to look at, and we
might increase GRO_HASH_BUCKETS to 32 or 64 in the future.

Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-11-23 11:32:55 -08:00
Linus Torvalds
7c98a42618 A messenger fix, marked for stable.
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Merge tag 'ceph-for-4.20-rc4' of https://github.com/ceph/ceph-client

Pullk ceph fix from Ilya Dryomov:
 "A messenger fix, marked for stable"

* tag 'ceph-for-4.20-rc4' of https://github.com/ceph/ceph-client:
  libceph: fall back to sendmsg for slab pages
2018-11-23 11:24:55 -08:00
Linus Torvalds
3381918fec for-linus-20181123
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Merge tag 'for-linus-20181123' of git://git.kernel.dk/linux-block

Pull block fix from Jens Axboe:
 "Just a single fix for this week, fixing an issue with nvme-fc"

* tag 'for-linus-20181123' of git://git.kernel.dk/linux-block:
  nvme-fc: resolve io failures during connect
2018-11-23 11:20:14 -08:00
Davide Caratti
484afd1bd3 net/sched: act_police: add missing spinlock initialization
commit f2cbd48528 ("net/sched: act_police: fix race condition on state
variables") introduces a new spinlock, but forgets its initialization.
Ensure that tcf_police_init() initializes 'tcfp_lock' every time a 'police'
action is newly created, to avoid the following lockdep splat:

 INFO: trying to register non-static key.
 the code is fine but needs lockdep annotation.
 turning off the locking correctness validator.
 <...>
 Call Trace:
  dump_stack+0x85/0xcb
  register_lock_class+0x581/0x590
  __lock_acquire+0xd4/0x1330
  ? tcf_police_init+0x2fa/0x650 [act_police]
  ? lock_acquire+0x9e/0x1a0
  lock_acquire+0x9e/0x1a0
  ? tcf_police_init+0x2fa/0x650 [act_police]
  ? tcf_police_init+0x55a/0x650 [act_police]
  _raw_spin_lock_bh+0x34/0x40
  ? tcf_police_init+0x2fa/0x650 [act_police]
  tcf_police_init+0x2fa/0x650 [act_police]
  tcf_action_init_1+0x384/0x4c0
  tcf_action_init+0xf6/0x160
  tcf_action_add+0x73/0x170
  tc_ctl_action+0x122/0x160
  rtnetlink_rcv_msg+0x2a4/0x490
  ? netlink_deliver_tap+0x99/0x400
  ? validate_linkmsg+0x370/0x370
  netlink_rcv_skb+0x4d/0x130
  netlink_unicast+0x196/0x230
  netlink_sendmsg+0x2e5/0x3e0
  sock_sendmsg+0x36/0x40
  ___sys_sendmsg+0x280/0x2f0
  ? _raw_spin_unlock+0x24/0x30
  ? handle_pte_fault+0xafe/0xf30
  ? find_held_lock+0x2d/0x90
  ? syscall_trace_enter+0x1df/0x360
  ? __sys_sendmsg+0x5e/0xa0
  __sys_sendmsg+0x5e/0xa0
  do_syscall_64+0x60/0x210
  entry_SYSCALL_64_after_hwframe+0x49/0xbe
 RIP: 0033:0x7f1841c7cf10
 Code: c3 48 8b 05 82 6f 2c 00 f7 db 64 89 18 48 83 cb ff eb dd 0f 1f 80 00 00 00 00 83 3d 8d d0 2c 00 00 75 10 b8 2e 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 31 c3 48 83 ec 08 e8 ae cc 00 00 48 89 04 24
 RSP: 002b:00007ffcf9df4d68 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
 RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 00007f1841c7cf10
 RDX: 0000000000000000 RSI: 00007ffcf9df4dc0 RDI: 0000000000000003
 RBP: 000000005bf56105 R08: 0000000000000002 R09: 00007ffcf9df8edc
 R10: 00007ffcf9df47e0 R11: 0000000000000246 R12: 0000000000671be0
 R13: 00007ffcf9df4e84 R14: 0000000000000008 R15: 0000000000000000

Fixes: f2cbd48528 ("net/sched: act_police: fix race condition on state variables")
Reported-by: Cong Wang <xiyou.wangcong@gmail.com>
Signed-off-by: Davide Caratti <dcaratti@redhat.com>
Acked-by: Cong Wang <xiyou.wangcong@gmail.com>
Acked-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-11-23 11:20:02 -08:00
Paolo Abeni
605108acfe net: don't keep lonely packets forever in the gro hash
Eric noted that with UDP GRO and NAPI timeout, we could keep a single
UDP packet inside the GRO hash forever, if the related NAPI instance
calls napi_gro_complete() at an higher frequency than the NAPI timeout.
Willem noted that even TCP packets could be trapped there, till the
next retransmission.
This patch tries to address the issue, flushing the old packets -
those with a NAPI_GRO_CB age before the current jiffy - before scheduling
the NAPI timeout. The rationale is that such a timeout should be
well below a jiffy and we are not flushing packets eligible for sane GRO.

v1  -> v2:
 - clarified the commit message and comment

RFC -> v1:
 - added 'Fixes tags', cleaned-up the wording.

Reported-by: Eric Dumazet <eric.dumazet@gmail.com>
Fixes: 3b47d30396 ("net: gro: add a per device gro flush timer")
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Acked-by: Willem de Bruijn <willemb@google.com>
Acked-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-11-23 11:18:53 -08:00
Hangbin Liu
896585d48e net/ipv6: re-do dad when interface has IFF_NOARP flag change
When we add a new IPv6 address, we should also join corresponding solicited-node
multicast address, unless the interface has IFF_NOARP flag, as function
addrconf_join_solict() did. But if we remove IFF_NOARP flag later, we do
not do dad and add the mcast address. So we will drop corresponding neighbour
discovery message that came from other nodes.

A typical example is after creating a ipvlan with mode l3, setting up an ipv6
address and changing the mode to l2. Then we will not be able to ping this
address as the interface doesn't join related solicited-node mcast address.

Fix it by re-doing dad when interface changed IFF_NOARP flag. Then we will add
corresponding mcast group and check if there is a duplicate address on the
network.

Reported-by: Jianlin Shi <jishi@redhat.com>
Reviewed-by: Stefano Brivio <sbrivio@redhat.com>
Signed-off-by: Hangbin Liu <liuhangbin@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-11-23 11:17:56 -08:00
David S. Miller
d72ff4b4ea Merge branch 'dpaa-coalesce'
Madalin Bucur says:

====================
dpaa_eth: add ethtool coalesce control

Add control of the DPAA portal interrupt coalescing settings from
ethtool.

changes from v2: read ithresh from HW, set previous values on failure
changes from v1: added range checking for the QMan APIs
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2018-11-23 11:17:07 -08:00
Madalin Bucur
10f70e9432 dpaa_eth: add ethtool coalesce control
Allow ethtool control of the DPAA QMan portal interrupt coalescing
settings.

Signed-off-by: Madalin Bucur <madalin.bucur@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-11-23 11:17:06 -08:00
Madalin Bucur
5c664ace8c soc/qman: add return value to interrupt coalesce changing APIs
Check that the values received by the portal interrupt coalesce
change APIs are in range.

Signed-off-by: Madalin Bucur <madalin.bucur@nxp.com>
Signed-off-by: Roy Pledge <roy.pledge@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-11-23 11:17:06 -08:00
Madalin Bucur
830b61ba4e soc: fsl: qbman: read ithresh from HW
Read the DQRR interrupt threshold directly from the hardware.

Signed-off-by: Madalin Bucur <madalin.bucur@nxp.com>
Signed-off-by: Roy Pledge <roy.pledge@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-11-23 11:17:06 -08:00
Linus Torvalds
d88783b9c8 IOMMU Fixes for Linux v4.20-rc3
Including:
 
 	- Two fixes for the Intel VT-d driver to fix a NULL-ptr
 	  dereference and an unbalance in an allocate/free path
 	  (allocated with memremap, freed with iounmap)
 
 	- Fix for a crash in the Renesas IOMMU driver
 
 	- Fix for the Advanced Virtual Interrupt Controler (AVIC) code
 	  in the AMD IOMMU driver
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Merge tag 'iommu-fixes-v4.20-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu

Pull IOMMU fixes from Joerg Roedel:

 - Two fixes for the Intel VT-d driver to fix a NULL-ptr dereference and
   an unbalance in an allocate/free path (allocated with memremap, freed
   with iounmap)

 - Fix for a crash in the Renesas IOMMU driver

 - Fix for the Advanced Virtual Interrupt Controler (AVIC) code in the
   AMD IOMMU driver

* tag 'iommu-fixes-v4.20-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu:
  iommu/vt-d: Use memunmap to free memremap
  amd/iommu: Fix Guest Virtual APIC Log Tail Address Register
  iommu/ipmmu-vmsa: Fix crash on early domain free
  iommu/vt-d: Fix NULL pointer dereference in prq_event_thread()
2018-11-23 11:15:27 -08:00
David S. Miller
2882b06dda Merge branch 'ravb-Duplex-handling-update-V3'
Magnus Damm says:

====================
ravb: Duplex handling update V3

[PATCH v3 01/02] ravb: Do not announce HDX as supported
[PATCH v3 02/02] ravb: Clean up duplex handling

This series is V3 of duplex handling improvements for the Ethernet-AVB driver.

Previous versions of this series have been posted to linux-renesas-soc as RFC
so V3 is the first actual version to make it to netdev.

Based on the latest data sheet for R-Car Gen3 [1] and R-Car Gen2 [2]
the following information is part of the EthernetAVB-IF overview page:

Transfer speed: Supports transfer at 100 and 1000 Mbps
Mode: Full-duplex mode

It seems that the driver implementation is not matching the information
provided in the friendly data sheet, and on top of this during run-time
when changing PHY configuration of the link partner the Ethernet-AVB PHY
seems to want to announce unsupported modes.

[1] R-Car Series, 3rd Generation Rev.1.00 (Apr 2018)
[2] R-Car Series, 2nd Generation Rev.2.00 (Feb 2016)

Changes since V2:
- Updated patch 1/2 to make use of phy_remove_link_mode()
- Added Reviewed-by from Sergei - thanks!

Changes since V1:
- Updated patches to reflect input from Sergei and Geert - thanks!
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2018-11-23 11:14:48 -08:00
Magnus Damm
08b4385780 ravb: Clean up duplex handling
Since only full-duplex operation is supported by the
hardware, remove duplex handling code and keep the
register setting of ECMR.DM fixed at 1.

This updates the driver implementation to follow the
data sheet text "This bit should always be set to 1."

Fixes: c156633f13 ("Renesas Ethernet AVB driver proper")
Signed-off-by: Magnus Damm <damm+renesas@opensource.se>
Reviewed-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-11-23 11:14:47 -08:00
Magnus Damm
ebc227fd91 ravb: Do not announce HDX as supported
According to the data sheet the Ethernet-AVB hardware in R-Car Gen3
and R-Car Gen2 SoCs do not support half duplex operation. So update
the driver to mark 100Mbit and 1Gbps HDX as unsupported.

Fixes: c156633f13 ("Renesas Ethernet AVB driver proper")
Signed-off-by: Magnus Damm <damm+renesas@opensource.se>
Reviewed-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-11-23 11:14:47 -08:00
Santosh Rastapur
02d805dc5f cxgb4: use new fw interface to get the VIN and smt index
If the fw supports returning VIN/VIVLD in FW_VI_CMD save it
in port_info structure else retrieve these from viid and save
them  in port_info structure. Do the same for smt_idx from
FW_VI_MAC_CMD

Signed-off-by: Santosh Rastapur <santosh@chelsio.com>
Signed-off-by: Ganesh Goudar <ganeshgr@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-11-23 11:11:15 -08:00
Doug Berger
24d476db6d net: bcmgenet: remove HFB_CTRL access
Commit c5a54bbcec ("net: bcmgenet: abort suspend on error")
mistakenly introduced register accesses that should not occur
in bcmgenet_wol_power_up_cfg().

Fixes: c5a54bbcec ("net: bcmgenet: abort suspend on error")
Signed-off-by: Doug Berger <opendmb@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-11-23 11:10:25 -08:00
Willem de Bruijn
5cd8d46ea1 packet: copy user buffers before orphan or clone
tpacket_snd sends packets with user pages linked into skb frags. It
notifies that pages can be reused when the skb is released by setting
skb->destructor to tpacket_destruct_skb.

This can cause data corruption if the skb is orphaned (e.g., on
transmit through veth) or cloned (e.g., on mirror to another psock).

Create a kernel-private copy of data in these cases, same as tun/tap
zerocopy transmission. Reuse that infrastructure: mark the skb as
SKBTX_ZEROCOPY_FRAG, which will trigger copy in skb_orphan_frags(_rx).

Unlike other zerocopy packets, do not set shinfo destructor_arg to
struct ubuf_info. tpacket_destruct_skb already uses that ptr to notify
when the original skb is released and a timestamp is recorded. Do not
change this timestamp behavior. The ubuf_info->callback is not needed
anyway, as no zerocopy notification is expected.

Mark destructor_arg as not-a-uarg by setting the lower bit to 1. The
resulting value is not a valid ubuf_info pointer, nor a valid
tpacket_snd frame address. Add skb_zcopy_.._nouarg helpers for this.

The fix relies on features introduced in commit 52267790ef ("sock:
add MSG_ZEROCOPY"), so can be backported as is only to 4.14.

Tested with from `./in_netns.sh ./txring_overwrite` from
http://github.com/wdebruij/kerneltools/tests

Fixes: 69e3c75f4d ("net: TX_RING and packet mmap")
Reported-by: Anand H. Krishnan <anandhkrishnan@gmail.com>
Signed-off-by: Willem de Bruijn <willemb@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-11-23 11:08:03 -08:00
Linus Torvalds
a03bac580a ACPI fix for 4.20-rc4
Prevent the ACPI core from registering a platform device for
 the SMB0001 HID to avoid IRQ allocation issues (Hans de Goede).
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Merge tag 'acpi-4.20-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm

Pull ACPI fix from Rafael Wysocki:
 "Prevent the ACPI core from registering a platform device for the
  SMB0001 HID to avoid IRQ allocation issues (Hans de Goede)"

* tag 'acpi-4.20-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
  ACPI / platform: Add SMB0001 HID to forbidden_id_list
2018-11-23 10:56:16 -08:00
Linus Torvalds
b88af99487 Power management fixes for 4.20-rc4
- Fix tasks freezer deadlock in de_thread() that occurs if one
    of its sub-threads has been frozen already (Chanho Min).
 
  - Avoid registering a platform device by the ti-cpufreq driver
    on platforms that cannot use it (Dave Gerlach).
 
  - Fix a mistake in the ti-opp-supply operating performance points
    (OPP) driver that caused an incorrect reference voltage to be
    used and make it adjust the minimum voltage dynamically to avoid
    hangs or crashes in some cases (Keerthy).
 
  - Fix issues related to compiler flags in the cpupower utility
    and correct a linking problem in it by renaming a file with
    a duplicate name (Jiri Olsa, Konstantin Khlebnikov).
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Merge tag 'pm-4.20-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm

Pull power management fixes from Rafael Wysocki:
 "These fix two issues in the Operating Performance Points (OPP)
  framework, one cpufreq driver issue, one problem related to the tasks
  freezer and a few build-related issues in the cpupower utility.

  Specifics:

   - Fix tasks freezer deadlock in de_thread() that occurs if one of its
     sub-threads has been frozen already (Chanho Min).

   - Avoid registering a platform device by the ti-cpufreq driver on
     platforms that cannot use it (Dave Gerlach).

   - Fix a mistake in the ti-opp-supply operating performance points
     (OPP) driver that caused an incorrect reference voltage to be used
     and make it adjust the minimum voltage dynamically to avoid hangs
     or crashes in some cases (Keerthy).

   - Fix issues related to compiler flags in the cpupower utility and
     correct a linking problem in it by renaming a file with a duplicate
     name (Jiri Olsa, Konstantin Khlebnikov)"

* tag 'pm-4.20-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
  exec: make de_thread() freezable
  cpufreq: ti-cpufreq: Only register platform_device when supported
  opp: ti-opp-supply: Correct the supply in _get_optimal_vdd_voltage call
  opp: ti-opp-supply: Dynamically update u_volt_min
  tools cpupower: Override CFLAGS assignments
  tools cpupower debug: Allow to use outside build flags
  tools/power/cpupower: fix compilation with STATIC=true
2018-11-23 10:52:57 -08:00
Will Deacon
4f9f49646a arm64: cpufeature: Fix mismerge of CONFIG_ARM64_SSBD block
When merging support for SSBD and the CRC32 instructions, the conflict
resolution for the new capability entries in arm64_features[]
inadvertedly predicated the availability of the CRC32 instructions on
CONFIG_ARM64_SSBD, despite the functionality being entirely unrelated.

Move the #ifdef CONFIG_ARM64_SSBD down so that it only covers the SSBD
capability.

Signed-off-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
2018-11-23 18:44:16 +00:00
Linus Torvalds
e6005d3c42 GPIO fixes for the v4.20 series:
- Do not lose an IDA on the gpiochip register errorpath.
 
 - Fix the PXA non-pincontrol GPIO-using platforms.
 
 - Fix the direction on the mockup GPIO driver.
 
 - Add some MAINTAINERS stuff: Bartosz stepped up as GPIO
   co-maintainer, and Andy established an Intel git tree.
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Merge tag 'gpio-v4.20-2' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio

Pull GPIO fixes from Linus Walleij:
 "Minor stuff except the IDA leak which was kind of important to fix.
  Also new maintainers, yay.

   - Do not lose an IDA on the gpiochip register errorpath.

   - Fix the PXA non-pincontrol GPIO-using platforms.

   - Fix the direction on the mockup GPIO driver.

   - Add some MAINTAINERS stuff: Bartosz stepped up as GPIO
     co-maintainer, and Andy established an Intel git tree"

* tag 'gpio-v4.20-2' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio:
  MAINTAINERS: Do maintain Intel GPIO drivers via separate tree
  gpio: mockup: fix indicated direction
  gpio: pxa: fix legacy non pinctrl aware builds again
  gpio: don't free unallocated ida on gpiochip_add_data_with_key() error path
  MAINTAINERS: add myself as co-maintainer of gpiolib
2018-11-23 10:40:19 -08:00
Linus Torvalds
dcd3aa31dc MMC host:
- sdhci-pci: Fixup card detect lookup
  - sdhci-pci: Workaround GLK firmware bug for tuning
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Merge tag 'mmc-v4.20-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/mmc

Pull MMC fixes from Ulf Hansson:
 "MMC host:

   - sdhci-pci: Fixup card detect lookup

   - sdhci-pci: Workaround GLK firmware bug for tuning"

* tag 'mmc-v4.20-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/mmc:
  mmc: sdhci-pci: Workaround GLK firmware failing to restore the tuning value
  mmc: sdhci-pci: Try "cd" for card-detect lookup before using NULL
2018-11-23 10:36:02 -08:00
Linus Torvalds
9b7c880c83 drm i915, amdgpu, ast, vc4, udmabuf fixes
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Merge tag 'drm-fixes-2018-11-23' of git://anongit.freedesktop.org/drm/drm

Pull drm fixes from Dave Airlie:
 "Regular drm fixes:

  amdgpu:
   - Vega20 fixes
   - firmware loading fix
   - panel display fix
   - override fix

  i915:
   - Sandybridge lockup fix
   - fastboot DSI panel fix
   - GPU hang on Broxton
   - GPU reloc fixes on pineview/bearlake

  ast:
   - screen blurring fix
   - cursor appearance fix

  udmabuf:
   - mmap fix

  vc4:
   - NULL deref fix
   - async cursor update fix

  All seems pretty normal at this stage"

* tag 'drm-fixes-2018-11-23' of git://anongit.freedesktop.org/drm/drm:
  drm/ast: fixed cursor may disappear sometimes
  drm/ast: change resolution may cause screen blurred
  drm/i915: Add rotation readout for plane initial config
  drm/i915: Force a LUT update in intel_initial_commit()
  drm/fb-helper: Blacklist writeback when adding connectors to fbdev
  drm/i915: Write GPU relocs harder with gen3
  drm/amdgpu: Enable HDP memory light sleep
  drm/i915: Prevent machine hang from Broxton's vtd w/a and error capture
  drm/amd/pp: handle negative values when reading OD
  drm/amdgpu: Add missing firmware entry for HAINAN
  drm/amd/powerplay: disable Vega20 DS related features
  drm/amdgpu: Fix oops when pp_funcs->switch_power_profile is unset
  drm/i915: Disable LP3 watermarks on all SNB machines
  drm/ast: Remove existing framebuffers before loading driver
  udmabuf: set read/write flag when exporting
  drm/amd/display: Support amdgpu "max bpc" connector property (v2)
  drm/amdgpu: Add amdgpu "max bpc" connector property (v2)
  drm/vc4: Set ->legacy_cursor_update to false when doing non-async updates
  drm/vc4: Fix NULL pointer dereference in the async update path
2018-11-23 10:03:08 -08:00