VxLAN offloading is not functional if the NIC is running in multichannel
mode (UMC, FLEX-10, VNIC...). Enabling this additionally kills whole
connectivity through the NIC and the device needs to be down and up to
restore it. The firmware should take care about it and does not allow
the conversion of interface to tunnel type (be_cmd_manage_iface) or should
support VxLAN offloading if multichannel config is enabled.
I have tested this on the latest available firmware (10.6.144.21).
Result:
[root@sm-04 ~]# ip link set enp5s0f0 up[root@sm-04 ~]# ip addr add 172.30.10.50/24 dev enp5s0f0
[root@sm-04 ~]# ping -c 3 172.30.10.254PING 172.30.10.254 (172.30.10.254) 56(84) bytes of data.
64 bytes from 172.30.10.254: icmp_seq=1 ttl=64 time=0.317 ms
64 bytes from 172.30.10.254: icmp_seq=2 ttl=64 time=0.187 ms
64 bytes from 172.30.10.254: icmp_seq=3 ttl=64 time=0.188 ms
--- 172.30.10.254 ping statistics ---
3 packets transmitted, 3 received, 0% packet loss, time 2000ms
rtt min/avg/max/mdev = 0.187/0.230/0.317/0.063 ms
[root@sm-04 ~]# ip link add link enp5s0f0 vxlan10 type vxlan id 10 remote 172.30.10.60 dstport 4789
[root@sm-04 ~]# ip link set vxlan10 up
[ 7900.442811] be2net 0000:05:00.0: Enabled VxLAN offloads for UDP port 4789
[ 7900.455722] be2net 0000:05:00.1: Enabled VxLAN offloads for UDP port 4789
[ 7900.468635] be2net 0000:05:00.2: Enabled VxLAN offloads for UDP port 4789
[ 7900.481553] be2net 0000:05:00.3: Enabled VxLAN offloads for UDP port 4789
[root@sm-04 ~]# ping -c 3 172.30.10.254
PING 172.30.10.254 (172.30.10.254) 56(84) bytes of data.
--- 172.30.10.254 ping statistics ---
3 packets transmitted, 0 received, 100% packet loss, time 1999ms
[root@sm-04 ~]# ip link set vxlan10 down
[ 7959.434093] be2net 0000:05:00.0: Disabled VxLAN offloads for UDP port 4789
[ 7959.444792] be2net 0000:05:00.1: Disabled VxLAN offloads for UDP port 4789
[ 7959.455592] be2net 0000:05:00.2: Disabled VxLAN offloads for UDP port 4789
[ 7959.466416] be2net 0000:05:00.3: Disabled VxLAN offloads for UDP port 4789
[root@sm-04 ~]# ip link del vxlan10
[root@sm-04 ~]# ping -c 3 172.30.10.254
PING 172.30.10.254 (172.30.10.254) 56(84) bytes of data.
--- 172.30.10.254 ping statistics ---
3 packets transmitted, 0 received, 100% packet loss, time 1999ms
[root@sm-04 ~]# ip link set enp5s0f0 down
[root@sm-04 ~]# ip link set enp5s0f0 up
[ 8071.019003] be2net 0000:05:00.0 enp5s0f0: Link is Up
[root@sm-04 ~]# ping -c 3 172.30.10.254
PING 172.30.10.254 (172.30.10.254) 56(84) bytes of data.
64 bytes from 172.30.10.254: icmp_seq=1 ttl=64 time=0.318 ms
64 bytes from 172.30.10.254: icmp_seq=2 ttl=64 time=0.196 ms
64 bytes from 172.30.10.254: icmp_seq=3 ttl=64 time=0.194 ms
--- 172.30.10.254 ping statistics ---
3 packets transmitted, 3 received, 0% packet loss, time 2000ms
rtt min/avg/max/mdev = 0.194/0.236/0.318/0.057 ms
Cc: Sathya Perla <sathya.perla@avagotech.com>
Cc: Ajit Khaparde <ajit.khaparde@avagotech.com>
Cc: Padmanabh Ratnakar <padmanabh.ratnakar@avagotech.com>
Cc: Sriharsha Basavapatna <sriharsha.basavapatna@avagotech.com>
Signed-off-by: Ivan Vecera <ivecera@redhat.com>
Acked-by: Ajit Khaparde <ajit.khaparde@avagotech.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Martin KaFai Lau says:
====================
ipv6: Fix a potential deadlock when creating pcpu rt
v1 -> v2:
A minor change in the commit message of patch 2.
This patch series fixes a potential deadlock when creating a pcpu rt.
It happens when dst_alloc() decided to run gc. Something like this:
read_lock(&table->tb6_lock);
ip6_rt_pcpu_alloc()
=> dst_alloc()
=> ip6_dst_gc()
=> write_lock(&table->tb6_lock); /* oops */
Patch 1 and 2 are some prep works.
Patch 3 is the fix.
Original report: https://bugzilla.kernel.org/show_bug.cgi?id=102291
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
It is a prep work for fixing a potential deadlock when creating
a pcpu rt.
The current rt6_get_pcpu_route() will also create a pcpu rt if one does not
exist. This patch moves the pcpu rt creation logic into another function,
rt6_make_pcpu_route().
Signed-off-by: Martin KaFai Lau <kafai@fb.com>
CC: Hannes Frederic Sowa <hannes@stressinduktion.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
After 4b32b5ad31 ("ipv6: Stop rt6_info from using inet_peer's metrics"),
ip6_dst_alloc() does not need the 'table' argument. This patch
cleans it up.
Signed-off-by: Martin KaFai Lau <kafai@fb.com>
CC: Hannes Frederic Sowa <hannes@stressinduktion.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
* Due to HW bug, LAN8700 sometimes does not detect presence of energy in the
Ethernet cable in Energy Detect Power-Down mode (e.g while EDPWRDOWN bit is
set, the ENERGYON bit does not asserted sometimes). This is a common bug of
LAN87xx family of PHY chips.
* The lan87xx_read_status() was improved to acquire ENERGYON bit. Its previous
algorythm still not reliable on 100 % and sometimes skip cable plugging.
Signed-off-by: Igor Plyatov <plyatov@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
a bit of content:
* mesh fixes/improvements from Alexis, Bob, Chun-Yeow and Jesse
* TDLS higher bandwidth support (Arik)
* OCB fixes from Bertold Van den Bergh
* suspend/resume fixes from Eliad
* dynamic SMPS support for minstrel-HT (Krishna Chaitanya)
* VHT bitrate mask support (Lorenzo Bianconi)
* better regulatory support for 5/10 MHz channels (Matthias May)
* basic support for MU-MIMO to avoid the multi-vif issue (Sara Sharon)
along with a number of other cleanups.
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Merge tag 'mac80211-next-for-davem-2015-08-14' of git://git.kernel.org/pub/scm/linux/kernel/git/jberg/mac80211-next
Johannes Berg says:
====================
Another pull request for the next cycle, this time with quite
a bit of content:
* mesh fixes/improvements from Alexis, Bob, Chun-Yeow and Jesse
* TDLS higher bandwidth support (Arik)
* OCB fixes from Bertold Van den Bergh
* suspend/resume fixes from Eliad
* dynamic SMPS support for minstrel-HT (Krishna Chaitanya)
* VHT bitrate mask support (Lorenzo Bianconi)
* better regulatory support for 5/10 MHz channels (Matthias May)
* basic support for MU-MIMO to avoid the multi-vif issue (Sara Sharon)
along with a number of other cleanups.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Willem de Bruijn says:
====================
packet: add cBPF and eBPF fanout modes
Allow programmable fanout modes. Support both classical BPF programs
passed directly and extended BPF programs passed by file descriptor.
One use case is packet steering by deep packet inspection, for
instance for packet steering by application layer header fields.
Separate the configuration of the fanout mode and the configuration
of the program, to allow dynamic updates to the latter at runtime.
Changes
v1 -> v2:
- follow SO_LOCK_FILTER semantics on filter updates
- only accept eBPF programs of type BPF_PROG_TYPE_SOCKET_FILTER
- rename PACKET_FANOUT_BPF to PACKET_FANOUT_CBPF to match
man 2 bpf usage: "classic" vs. "extended" BPF.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Test PACKET_FANOUT_EBPF by inserting a program into the the kernel
with bpf(), then attaching it to the fanout group. Observe the same
payload-based distribution as in the PACKET_FANOUT_CBPF test.
Signed-off-by: Willem de Bruijn <willemb@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Test PACKET_FANOUT_CBPF by inserting a cBPF program that selects a
socket by payload. Requires modifying the test program to send
packets with multiple payloads.
Also fix a bug in testing the return value of mmap()
Signed-off-by: Willem de Bruijn <willemb@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Add fanout mode PACKET_FANOUT_EBPF that accepts an en extended BPF
program to select a socket.
Update the internal eBPF program by passing to socket option
SOL_PACKET/PACKET_FANOUT_DATA a file descriptor returned by bpf().
Signed-off-by: Willem de Bruijn <willemb@google.com>
Acked-by: Alexei Starovoitov <ast@plumgrid.com>
Acked-by: Daniel Borkmann <daniel@iogearbox.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
Add fanout mode PACKET_FANOUT_CBPF that accepts a classic BPF program
to select a socket.
This avoids having to keep adding special case fanout modes. One
example use case is application layer load balancing. The QUIC
protocol, for instance, encodes a connection ID in UDP payload.
Also add socket option SOL_PACKET/PACKET_FANOUT_DATA that updates data
associated with the socket group. Fanout mode PACKET_FANOUT_CBPF is the
only user so far.
Signed-off-by: Willem de Bruijn <willemb@google.com>
Acked-by: Alexei Starovoitov <ast@plumgrid.com>
Acked-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
There are cases on which lowcomms_connect_sock() is called directly,
which caused the CF_WRITE_PENDING flag to not bet set upon reconnect,
specially on send_to_sock() error handling. On this last, the flag was
already cleared and no further attempt on transmitting would be done.
As dlm tends to connect when it needs to transmit something, it makes
sense to always mark this flag right after the connect.
Signed-off-by: Marcelo Ricardo Leitner <marcelo.leitner@gmail.com>
Signed-off-by: David Teigland <teigland@redhat.com>
BUG_ON() is a severe action for this case, specially now that DLM with
SCTP will use 1 socket per association. Instead, we can just close the
socket on this error condition and return from the function.
Also move the check to an earlier stage as it won't change and thus we
can abort as soon as possible.
Although this issue was reported when still using SCTP with 1-to-many
API, this cleanup wouldn't be that simple back then because we couldn't
close the socket and making sure such event would cease would be hard.
And actually, previous code was closing the association, yet SCTP layer
is still raising the new data event. Probably a bug to be fixed in SCTP.
Reported-by: <tan.hu@zte.com.cn>
Signed-off-by: Marcelo Ricardo Leitner <marcelo.leitner@gmail.com>
Signed-off-by: David Teigland <teigland@redhat.com>
DLM is using 1-to-many API but in a 1-to-1 fashion. That is, it's not
needed but this causes it to use sctp_do_peeloff() to mimic an
kernel_accept() and this causes a symbol dependency on sctp module.
By switching it to 1-to-1 API we can avoid this dependency and also
reduce quite a lot of SCTP-specific code in lowcomms.c.
The caveat is that now DLM won't always use the same src port. It will
choose a random one, just like TCP code. This allows the peers to
attempt simultaneous connections, which now are handled just like for
TCP.
Even more sharing between TCP and SCTP code on DLM is possible, but it
is intentionally left for a later commit.
Note that for using nodes with this commit, you have to have at least
the early fixes on this patchset otherwise it will trigger some issues
on old nodes.
Signed-off-by: Marcelo Ricardo Leitner <marcelo.leitner@gmail.com>
Signed-off-by: David Teigland <teigland@redhat.com>
If we don't clear that bit, lowcomms_connect_sock() will not schedule
another attempt, and no further attempt will be done.
Signed-off-by: Marcelo Ricardo Leitner <marcelo.leitner@gmail.com>
Signed-off-by: David Teigland <teigland@redhat.com>
When a connection have issues DLM may need to close it. Therefore we
should also cancel pending workqueues for such connection at that time,
and not just when dlm is not willing to use this connection anymore.
Also, if we don't clear CF_CONNECT_PENDING flag, the error handling
routines won't be able to re-connect as lowcomms_connect_sock() will
check for it.
Signed-off-by: Marcelo Ricardo Leitner <marcelo.leitner@gmail.com>
Signed-off-by: David Teigland <teigland@redhat.com>
When using SCTP and accepting a new connection, DLM currently validates
if the peer trying to connect to it is one of the cluster nodes, but it
doesn't check if it already has a connection to it or not.
If it already had a connection, it will be overwritten, and the new one
will be used for writes, possibly causing the node to leave the cluster
due to communication breakage.
Still, one could DoS the node by attempting N connections and keeping
them open.
As said, but being explicit, both situations are only triggerable from
other cluster nodes, but are doable with only user-level perms.
Signed-off-by: Marcelo Ricardo Leitner <marcelo.leitner@gmail.com>
Signed-off-by: David Teigland <teigland@redhat.com>
We already have IFLA_IPTUN_ netlink attributes. The IP_TUN_ attributes look
very similar, yet they serve very different purpose. This is confusing for
anyone trying to implement a user space tool supporting lwt.
As the IP_TUN_ attributes are used only for the lightweight tunnels, prefix
them with LWTUNNEL_IP_ instead to make their purpose clear. Also, it's more
logical to have them in lwtunnel.h together with the encap enum.
Fixes: 3093fbe7ff ("route: Per route IP tunnel metadata via lightweight tunnel")
Signed-off-by: Jiri Benc <jbenc@redhat.com>
Acked-by: Thomas Graf <tgraf@suug.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
Commit 0b50dc4fc9 ("Convert smsc911x to use ACPI as well as DT") makes
the call to smsc911x_probe_config() unconditional, and no longer fails if
there is no device node. device_get_phy_mode() is called unconditionally,
and if there is no phy node configured returns an error code. This error
code is assigned to phy_interface, and interpreted elsewhere in the code
as valid phy mode. This in turn causes qemu to crash when running a
variant of realview_pb_defconfig.
qemu: hardware error: lan9118_read: Bad reg 0x86
Fixes: 0b50dc4fc9 ("Convert smsc911x to use ACPI as well as DT")
Cc: Jeremy Linton <jeremy.linton@arm.com>
Cc Graeme Gregory <graeme.gregory@linaro.org>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
Steffen Klassert says:
====================
pull request (net-next): ipsec-next 2015-08-17
1) Fix IPv6 ECN decapsulation for IPsec interfamily tunnels.
From Thomas Egerer.
2) Use kmemdup instead of duplicating it in xfrm_dump_sa().
From Andrzej Hajda.
3) Pass oif to the xfrm lookups so that it gets set on the flow
and the resolver routines can match based on oif.
From David Ahern.
4) Add documentation for the new xfrm garbage collector threshold.
From Alexander Duyck.
Please pull or let me know if there are problems.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
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Merge tag 'mac80211-for-davem-2015-08-14' of git://git.kernel.org/pub/scm/linux/kernel/git/jberg/mac80211
Johannes Berg says:
====================
We have a single bugfix for an invalid memory read.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Pagetables can be moved and therefore the page directory update can be necessary
for the current cs even if none of the the bo's are moved. In that scenario
there is no fence between the sdma0 and gfx ring, so we add one.
v2 (chk): rebased
Signed-off-by: Bas Nieuwenhuizen <bas@basnieuwenhuizen.nl>
Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Explicitly select BACKLIGHT_LCD_SUPPORT to satisfy the direct dependency
of BACKLIGHT_CLASS_DEVICE.
Cc: Alex Deucher <alexander.deucher@amd.com>
Cc: Christian König <christian.koenig@amd.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Explicitly select BACKLIGHT_LCD_SUPPORT to satisfy the direct dependency
of BACKLIGHT_CLASS_DEVICE.
Cc: Alex Deucher <alexander.deucher@amd.com>
Cc: Christian König <christian.koenig@amd.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Rework run queue implementation, especially remove the odd list handling.
v2: cleanup the code only, no algorithem change.
Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Chunming Zhou <david1.zhou@amd.com>
fix the bug that there is duplicated bo_update_mapping issued
Signed-off-by: monk.liu <monk.liu@amd.com>
Reviewed-by: Chunming Zhou <david1.zhou@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
bo_list_clone() will take a lot of time when bo_list hold too much
elements, like above 7000
Signed-off-by: Monk.Liu <monk.liu@amd.com>
Reviewed-by: Chunming Zhou <david1.zhou@amd.com>
Reviewed-by: Jammy Zhou <jammy.zhou@amd.com>
It's not validated yet and causes more harm than good.
Avoids spurious resets.
Reviewed-by: Leo Liu <leo.liu@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
remaining timeout returned by amdgpu_fence_wait_any can be larger than
max int value, thus the truncated 32 bit value in r ends up being
negative while its original long value is positive.
Signed-off-by: monk.liu <monk.liu@amd.com>
Reviewed-by: Michel Dänzer <michel.daenzer@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Jammy Zhou <jammy.zhou@amd.com>
fix fence is released when pass to **fence sometimes.
add reference for it.
Signed-off-by: Chunming Zhou <david1.zhou@amd.com>
Reviewed-by: Christian K?nig <christian.koenig@amd.com>
Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Tested-and-Reviewed-by: Leo Liu <leo.liu@amd.com>
Not used any more.
v2: remove amd_sched_emit as well.
Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Chunming Zhou <david1.zhou@amd.com>
Similar to radeon, except that amdgpu doesn't even use struct_mutex to
protect anything like the shared z buffer (sane gpu architecture,
yay!). And the code already grabs the globa adev->ring_lock, so this
code can't race with itself. Which makes struct_mutex completely
redundnant. Remove it.
Cc: Alex Deucher <alexander.deucher@amd.com>
Cc: "Christian König" <christian.koenig@amd.com>
Reviewed-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
It really doesn't protect anything which doesn't have other locks
already. Also this is run from driver unload code so not much need for
locks anyway.
Same changes as for radeon really.
Cc: Alex Deucher <alexander.deucher@amd.com>
Cc: "Christian König" <christian.koenig@amd.com>
Reviewed-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
We already grab 2 device-global locks (write-sema rdev->pm.mclk_lock
and rdev->ring_lock), adding another global mutex won't serialize this
code more. And since there's really nothing interesting that gets
protected in radeon by dev->struct mutex (we only have the global z
buffer owners and it's still serializing gem bo destruction in the drm
core - which is irrelevant since radeon uses ttm anyway internally)
this doesn't add protection. Remove it.
Cc: Alex Deucher <alexander.deucher@amd.com>
Cc: "Christian König" <christian.koenig@amd.com>
Reviewed-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
It really doesn't protect anything which doesn't have other locks
already. Also this is run from driver unload code so not much need for
locks anyway.
Cc: Alex Deucher <alexander.deucher@amd.com>
Cc: "Christian König" <christian.koenig@amd.com>
Reviewed-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
The workaround simply doesn't work because VM mappings
are controlled by userspace not the kernel.
Additional to that this is just a performance problem
which happens if you have holes in your VM mapping.
v2: adjust virtual addr alignment as well.
v3: fix trivial warning
Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Monk Liu <monk.liu@amd.com> (v1)
Reviewed-by: Jammy Zhou <Jammy.Zhou@amd.com> (v2)
Looks like that somehow got missed while during porting the radeon changes.
Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
It was just a wrapper for fence_wait anyway.
Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
