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Author SHA1 Message Date
David S. Miller
58b87d21fe Merge branch 'stmmac-fixes'
Jose Abreu says:

====================
net: stmmac: Fixes for -net

Misc fixes for stmmac.

Patch 1/11 and 2/11, use the correct variable type for bitrev32() calls.

Patch 3/11, fixes the random failures the we were seing when running selftests.

Patch 4/11, prevents a crash that can occur when receiving AVB packets and with
SPH feature enabled on XGMAC.

Patch 5/11, fixes the correct settings for CBS on XGMAC.

Patch 6/11, corrects the interpretation of AVB feature on XGMAC.

Patch 7/11, disables Flow Control for AVB enabled queues on XGMAC.

Patch 8/11, disables MMC interrupts on XGMAC, preventing a storm of interrupts.

Patch 9/11, fixes the number of packets that were being taken into account in
the RX path cleaning function.

Patch 10/11, fixes an incorrect descriptor setting that could cause IP
misbehavior.

Patch 11/11, fixes the IOC generation mechanism when multiple descriptors
are used.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2019-11-06 21:22:56 -08:00
Jose Abreu
7df4a3a76d net: stmmac: Fix the TX IOC in xmit path
IOC bit must be only set in the last descriptor. Move the logic up a
little bit to make sure it's set in the correct descriptor.

Signed-off-by: Jose Abreu <Jose.Abreu@synopsys.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-11-06 21:22:55 -08:00
Jose Abreu
b2f071995b net: stmmac: Fix TSO descriptor with Enhanced Addressing
When using addressing > 32 bits the TSO first descriptor only has the
header so we can't set the payload field for this descriptor. Let's
reset the variable so that buffer 2 value is zero.

Fixes: a993db88d1 ("net: stmmac: Enable support for > 32 Bits addressing in XGMAC")
Signed-off-by: Jose Abreu <Jose.Abreu@synopsys.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-11-06 21:22:55 -08:00
Jose Abreu
cda4985a3e net: stmmac: Fix the packet count in stmmac_rx()
Currently, stmmac_rx() is counting the number of descriptors but it
should count the number of packets as specified by the NAPI limit.

Fix this.

Fixes: ec222003bd ("net: stmmac: Prepare to add Split Header support")
Signed-off-by: Jose Abreu <Jose.Abreu@synopsys.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-11-06 21:22:55 -08:00
Jose Abreu
aeb18dd076 net: stmmac: xgmac: Disable MMC interrupts by default
MMC interrupts were being enabled, which is not what we want because it
will lead to a storm of interrupts that are not handled at all. Fix it
by disabling all MMC interrupts for XGMAC.

Fixes: b6cdf09f51 ("net: stmmac: xgmac: Implement MMC counters")
Signed-off-by: Jose Abreu <Jose.Abreu@synopsys.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-11-06 21:22:55 -08:00
Jose Abreu
132f2f20c9 net: stmmac: xgmac: Disable Flow Control when 1 or more queues are in AV
When in AVB mode we need to disable flow control to prevent MAC from
pausing in TX side.

Fixes: ec6ea8e3ee ("net: stmmac: Add CBS support in XGMAC2")
Signed-off-by: Jose Abreu <Jose.Abreu@synopsys.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-11-06 21:22:55 -08:00
Jose Abreu
08c1ac3bcb net: stmmac: xgmac: Fix AV Feature detection
Fix incorrect precedence of operators. For reference: AV implies AV
Feature but RAV implies only RX side AV Feature. As we want full AV
features we need to check RAV.

Fixes: c2b69474d6 ("net: stmmac: xgmac: Correct RAVSEL field interpretation")
Signed-off-by: Jose Abreu <Jose.Abreu@synopsys.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-11-06 21:22:55 -08:00
Jose Abreu
97add93fbc net: stmmac: xgmac: Fix TSA selection
When we change between Transmission Scheduling Algorithms, we need to
clear previous values so that the new chosen algorithm is correctly
selected.

Fixes: ec6ea8e3ee ("net: stmmac: Add CBS support in XGMAC2")
Signed-off-by: Jose Abreu <Jose.Abreu@synopsys.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-11-06 21:22:55 -08:00
Jose Abreu
96147375d4 net: stmmac: xgmac: Only get SPH header len if available
Split Header length is only available when L34T == 0. Fix this by
correctly checking if L34T is zero before trying to get Header length.

Fixes: 67afd6d1cf ("net: stmmac: Add Split Header support and enable it in XGMAC cores")
Signed-off-by: Jose Abreu <Jose.Abreu@synopsys.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-11-06 21:22:55 -08:00
Jose Abreu
eeb9d74516 net: stmmac: selftests: Prevent false positives in filter tests
In L2 tests that filter packets by destination MAC address we need to
prevent false positives that can occur if we add an address that
collides with the existing ones.

To fix this, lets manually check if the new address to be added is
already present in the NIC and use a different one if so. For Hash
filtering this also envolves converting the address to the hash.

Fixes: 091810dbde ("net: stmmac: Introduce selftests support")
Signed-off-by: Jose Abreu <Jose.Abreu@synopsys.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-11-06 21:22:55 -08:00
Jose Abreu
3d00e45d49 net: stmmac: xgmac: bitrev32 returns u32
The bitrev32 function returns an u32 var, not an int. Fix it.

Fixes: 0efedbf11f ("net: stmmac: xgmac: Fix XGMAC selftests")
Signed-off-by: Jose Abreu <Jose.Abreu@synopsys.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-11-06 21:22:55 -08:00
Jose Abreu
4d7c47e34f net: stmmac: gmac4: bitrev32 returns u32
The bitrev32 function returns an u32 var, not an int. Fix it.

Fixes: 477286b53f ("stmmac: add GMAC4 core support")
Signed-off-by: Jose Abreu <Jose.Abreu@synopsys.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-11-06 21:22:55 -08:00
Wei Yongjun
1dcff44a9d net: aquantia: fix return value check in aq_ptp_init()
Function ptp_clock_register() returns ERR_PTR() and never returns
NULL. The NULL test should be removed.

Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com>
Acked-by: Igor Russkikh <irusskikh@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-11-06 21:21:09 -08:00
Wei Yongjun
b97fa0b544 ptp: ptp_clockmatrix: Fix missing unlock on error in idtcm_probe()
Add the missing unlock before return from function idtcm_probe()
in the error handling case.

Fixes: 3a6ba7dc77 ("ptp: Add a ptp clock driver for IDT ClockMatrix.")
Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com>
Reviewed-by: Vincent Cheng <vincent.cheng.xh@renesas.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-11-06 21:19:59 -08:00
David S. Miller
53ba60afb1 Merge git://git.kernel.org/pub/scm/linux/kernel/git/pablo/nf
Pablo Neira Ayuso says:

====================
Netfilter fixes for net

The following patchset contains Netfilter fixes for net:

1) Missing register size validation in bitwise and cmp offloads.

2) Fix error code in ip_set_sockfn_get() when copy_to_user() fails,
   from Dan Carpenter.

3) Oneliner to copy MAC address in IPv6 hash:ip,mac sets, from
   Stefano Brivio.

4) Missing policy validation in ipset with NL_VALIDATE_STRICT,
   from Jozsef Kadlecsik.

5) Fix unaligned access to private data area of nf_tables instructions,
   from Lukas Wunner.

6) Relax check for object updates, reported as a regression by
   Eric Garver, patch from Fernando Fernandez Mancera.

7) Crash on ebtables dnat extension when used from the output path.
   From Florian Westphal.

8) Fix bogus EOPNOTSUPP when updating basechain flags.

9) Fix bogus EBUSY when updating a basechain that is already offloaded.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2019-11-06 21:16:55 -08:00
Tuong Lien
d0d605c5e1 tipc: eliminate the dummy packet in link synching
When preparing tunnel packets for the link failover or synchronization,
as for the safe algorithm, we added a dummy packet on the pair link but
never sent it out. In the case of failover, the pair link will be reset
anyway. But for link synching, it will always result in retransmission
of the dummy packet after that.
We have also observed that such the retransmission at the early stage
when a new node comes in a large cluster will take some time and hard
to be done, leading to the repeated retransmit failures and the link is
reset.

Since in commit 4929a932be ("tipc: optimize link synching mechanism")
we have already built a dummy 'TUNNEL_PROTOCOL' message on the new link
for the synchronization, there's no need for the dummy on the pair one,
this commit will skip it when the new mechanism takes in place. In case
nothing exists in the pair link's transmq, the link synching will just
start and stop shortly on the peer side.

The patch is backward compatible.

Acked-by: Jon Maloy <jon.maloy@ericsson.com>
Tested-by: Hoang Le <hoang.h.le@dektech.com.au>
Signed-off-by: Tuong Lien <tuong.t.lien@dektech.com.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-11-06 21:16:02 -08:00
David S. Miller
3924f72a3a Merge branch 'lwtunnel-add-ip-and-ip6-options-setting-and-dumping'
Xin Long says:

====================
lwtunnel: add ip and ip6 options setting and dumping

With this patchset, users can configure options by ip route encap
for geneve, vxlan and ersapn lwtunnel, like:

  # ip r a 1.1.1.0/24 encap ip id 1 geneve class 0 type 0 \
    data "1212121234567890" dst 10.1.0.2 dev geneve1

  # ip r a 1.1.1.0/24 encap ip id 1 vxlan gbp 456 \
    dst 10.1.0.2 dev erspan1

  # ip r a 1.1.1.0/24 encap ip id 1 erspan ver 1 idx 123 \
    dst 10.1.0.2 dev erspan1

iproute side patch is attached on the reply of this mail.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2019-11-06 21:14:22 -08:00
Xin Long
b0a21810bd lwtunnel: add options setting and dumping for erspan
Based on the code framework built on the last patch, to
support setting and dumping for vxlan, we only need to
add ip_tun_parse_opts_erspan() for .build_state and
ip_tun_fill_encap_opts_erspan() for .fill_encap and
if (tun_flags & TUNNEL_ERSPAN_OPT) for .get_encap_size.

Signed-off-by: Xin Long <lucien.xin@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-11-06 21:14:22 -08:00
Xin Long
edf31cbb15 lwtunnel: add options setting and dumping for vxlan
Based on the code framework built on the last patch, to
support setting and dumping for vxlan, we only need to
add ip_tun_parse_opts_vxlan() for .build_state and
ip_tun_fill_encap_opts_vxlan() for .fill_encap and
if (tun_flags & TUNNEL_VXLAN_OPT) for .get_encap_size.

Signed-off-by: Xin Long <lucien.xin@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-11-06 21:14:21 -08:00
Xin Long
4ece477870 lwtunnel: add options setting and dumping for geneve
To add options setting and dumping, .build_state(), .fill_encap() and
.get_encap_size() in ip_tun_lwt_ops needs to be extended:

ip_tun_build_state():
  ip_tun_parse_opts():
    ip_tun_parse_opts_geneve()

ip_tun_fill_encap_info():
  ip_tun_fill_encap_opts():
    ip_tun_fill_encap_opts_geneve()

ip_tun_encap_nlsize()
   ip_tun_opts_nlsize():
     if (tun_flags & TUNNEL_GENEVE_OPT)

ip_tun_parse_opts(), ip_tun_fill_encap_opts() and ip_tun_opts_nlsize()
processes LWTUNNEL_IP_OPTS.

ip_tun_parse_opts_geneve(), ip_tun_fill_encap_opts_geneve() and
if (tun_flags & TUNNEL_GENEVE_OPT) processes LWTUNNEL_IP_OPTS_GENEVE.

Signed-off-by: Xin Long <lucien.xin@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-11-06 21:14:21 -08:00
Xin Long
0eb8eb2f96 lwtunnel: add options process for cmp_encap
When comparing two tun_info, dst_cache member should have been skipped,
as dst_cache is a per cpu pointer and they are always different values
even in two tun_info with the same keys.

So this patch is to skip dst_cache member and compare the key, mode and
options_len only. For the future opts setting support, also to compare
options.

Fixes: 2d79849903 ("lwtunnel: ip tunnel: fix multiple routes with different encap")
Signed-off-by: Xin Long <lucien.xin@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-11-06 21:14:21 -08:00
Xin Long
f52f11ec8a lwtunnel: add options process for arp request
Without options copied to the dst tun_info in iptunnel_metadata_reply()
called by arp_process for handling arp_request, the generated arp_reply
packet may be dropped or sent out with wrong options for some tunnels
like erspan and vxlan, and the traffic will break.

Fixes: 63d008a4e9 ("ipv4: send arp replies to the correct tunnel")
Signed-off-by: Xin Long <lucien.xin@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-11-06 21:14:21 -08:00
Michał Mirosław
dee58fe8dc ata_piix: remove open-coded dmi_match(DMI_OEM_STRING)
Since de40614de9 ("firmware: dmi_scan: Add DMI_OEM_STRING support to
dmi_matches") dmi_check_system() can match OEM_STRINGs itself.
Use the feature.

Signed-off-by: Michał Mirosław <mirq-linux@rere.qmqm.pl>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2019-11-06 20:34:25 -07:00
Pavel Shilovsky
d243af7ab9 SMB3: Fix persistent handles reconnect
When the client hits a network reconnect, it re-opens every open
file with a create context to reconnect a persistent handle. All
create context types should be 8-bytes aligned but the padding
was missed for that one. As a result, some servers don't allow
us to reconnect handles and return an error. The problem occurs
when the problematic context is not at the end of the create
request packet. Fix this by adding a proper padding at the end
of the reconnect persistent handle context.

Cc: Stable <stable@vger.kernel.org> # 4.19.x
Signed-off-by: Pavel Shilovsky <pshilov@microsoft.com>
Signed-off-by: Steve French <stfrench@microsoft.com>
2019-11-06 21:32:18 -06:00
Pavel Begunkov
267bc90442 io_uring: use inlined struct sqe_submit
req->submit is always up-to-date, use it directly

Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2019-11-06 20:23:02 -07:00
Pavel Begunkov
50585b9a07 io_uring: Use submit info inlined into req
Stack allocated struct sqe_submit is passed down to the submission path
along with a request (a.k.a. struct io_kiocb), and will be copied into
req->submit for async requests.

As space for it is already allocated, fill req->submit in the first
place instead of using on-stack one. As a result:

1. sqe->submit is the only place for sqe_submit and is always valid,
so we don't need to track which one to use.
2. don't need to copy in case of async
3. allows to simplify the code by not carrying it as an argument all
the way down
4. allows to reduce number of function arguments / potentially improve
spilling

The downside is that stack is most probably be cached, that's not true
for just allocated memory for a request. Another concern is cache
pollution. Though, a request would be touched and fetched along with
req->submit at some point anyway, so shouldn't be a problem.

Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2019-11-06 20:23:00 -07:00
Pavel Begunkov
196be95cd5 io_uring: allocate io_kiocb upfront
Let io_submit_sqes() to allocate io_kiocb before fetching an sqe.

Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2019-11-06 20:21:37 -07:00
Alex Deucher
2c409ba81b drm/radeon: fix si_enable_smc_cac() failed issue
Need to set the dte flag on this asic.

Port the fix from amdgpu:
5cb818b861 ("drm/amd/amdgpu: fix si_enable_smc_cac() failed issue")

Reviewed-by: Yong Zhao <yong.zhao@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
2019-11-06 22:06:23 -05:00
Alex Deucher
77a3160221 drm/amdgpu/renoir: move gfxoff handling into gfx9 module
To properly handle the option parsing ordering.

Reviewed-by: Yong Zhao <yong.zhao@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2019-11-06 22:06:23 -05:00
changzhu
440a7a54e7 drm/amdgpu: add warning for GRBM 1-cycle delay issue in gfx9
It needs to add warning to update firmware in gfx9
in case that firmware is too old to have function to
realize dummy read in cp firmware.

Signed-off-by: changzhu <Changfeng.Zhu@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2019-11-06 22:06:23 -05:00
changzhu
589b64a7e3 drm/amdgpu: add dummy read by engines for some GCVM status registers in gfx10
The GRBM register interface is now capable of bursting 1 cycle per
register wr->wr, wr->rd much faster than previous muticycle per
transaction done interface.  This has caused a problem where
status registers requiring HW to update have a 1 cycle delay, due
to the register update having to go through GRBM.

For cp ucode, it has realized dummy read in cp firmware.It covers
the use of WAIT_REG_MEM operation 1 case only.So it needs to call
gfx_v10_0_wait_reg_mem in gfx10. Besides it also needs to add warning to
update firmware in case firmware is too old to have function to realize
dummy read in cp firmware.

For sdma ucode, it hasn't realized dummy read in sdma firmware. sdma is
moved to gfxhub in gfx10. So it needs to add dummy read in driver
between amdgpu_ring_emit_wreg and amdgpu_ring_emit_reg_wait for sdma_v5_0.

Signed-off-by: changzhu <Changfeng.Zhu@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2019-11-06 22:06:23 -05:00
Evan Quan
6a299d7aaa drm/amdgpu: register gpu instance before fan boost feature enablment
Otherwise, the feature enablement will be skipped due to wrong count.

Fixes: beff74bc6e ("drm/amdgpu: fix a race in GPU reset with IB test (v2)")
Signed-off-by: Evan Quan <evan.quan@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2019-11-06 22:06:23 -05:00
Kevin Wang
38264de0dc drm/amd/swSMU: fix smu workload bit map error
fix workload bit (WORKLOAD_PPLIB_COMPUTE_BIT) map error
on vega20 and navi asic.

fix commit:
drm/amd/powerplay: add function get_workload_type_map for swsmu

Signed-off-by: Kevin Wang <kevin1.wang@amd.com>
Reviewed-by: Kenneth Feng <kenneth.feng@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2019-11-06 22:06:23 -05:00
Daniel Axtens
5bece3d661 powerpc: support KASAN instrumentation of bitops
The powerpc-specific bitops are not being picked up by the KASAN
test suite.

Instrumentation is done via the bitops/instrumented-{atomic,lock}.h
headers. They require that arch-specific versions of bitop functions
are renamed to arch_*. Do this renaming.

For clear_bit_unlock_is_negative_byte, the current implementation
uses the PG_waiters constant. This works because it's a preprocessor
macro - so it's only actually evaluated in contexts where PG_waiters
is defined. With instrumentation however, it becomes a static inline
function, and all of a sudden we need the actual value of PG_waiters.
Because of the order of header includes, it's not available and we
fail to compile. Instead, manually specify that we care about bit 7.
This is still correct: bit 7 is the bit that would mark a negative
byte.

While we're at it, replace __inline__ with inline across the file.

Reviewed-by: Christophe Leroy <christophe.leroy@c-s.fr>
Signed-off-by: Daniel Axtens <dja@axtens.net>
Tested-by: Christophe Leroy <christophe.leroy@c-s.fr>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20190820024941.12640-2-dja@axtens.net
2019-11-07 13:15:40 +11:00
Daniel Axtens
81d2c6f819 kasan: support instrumented bitops combined with generic bitops
Currently bitops-instrumented.h assumes that the architecture provides
atomic, non-atomic and locking bitops (e.g. both set_bit and __set_bit).
This is true on x86 and s390, but is not always true: there is a
generic bitops/non-atomic.h header that provides generic non-atomic
operations, and also a generic bitops/lock.h for locking operations.

powerpc uses the generic non-atomic version, so it does not have it's
own e.g. __set_bit that could be renamed arch___set_bit.

Split up bitops-instrumented.h to mirror the atomic/non-atomic/lock
split. This allows arches to only include the headers where they
have arch-specific versions to rename. Update x86 and s390.

(The generic operations are automatically instrumented because they're
written in C, not asm.)

Suggested-by: Christophe Leroy <christophe.leroy@c-s.fr>
Reviewed-by: Christophe Leroy <christophe.leroy@c-s.fr>
Signed-off-by: Daniel Axtens <dja@axtens.net>
Acked-by: Marco Elver <elver@google.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20190820024941.12640-1-dja@axtens.net
2019-11-07 13:15:39 +11:00
Ursula Braun
98f3375505 net/smc: fix ethernet interface refcounting
If a pnet table entry is to be added mentioning a valid ethernet
interface, but an invalid infiniband or ISM device, the dev_put()
operation for the ethernet interface is called twice, resulting
in a negative refcount for the ethernet interface, which disables
removal of such a network interface.

This patch removes one of the dev_put() calls.

Fixes: 890a2cb4a9 ("net/smc: rework pnet table")
Signed-off-by: Ursula Braun <ubraun@linux.ibm.com>
Signed-off-by: Karsten Graul <kgraul@linux.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-11-06 17:44:32 -08:00
Hoang Le
426071f1f3 tipc: reduce sensitive to retransmit failures
With huge cluster (e.g >200nodes), the amount of that flow:
gap -> retransmit packet -> acked will take time in case of STATE_MSG
dropped/delayed because a lot of traffic. This lead to 1.5 sec tolerance
value criteria made link easy failure around 2nd, 3rd of failed
retransmission attempts.

Instead of re-introduced criteria of 99 faled retransmissions to fix the
issue, we increase failure detection timer to ten times tolerance value.

Fixes: 77cf8edbc0 ("tipc: simplify stale link failure criteria")
Acked-by: Jon Maloy <jon.maloy@ericsson.com>
Signed-off-by: Hoang Le <hoang.h.le@dektech.com.au>
Acked-by: Jon
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-11-06 17:37:43 -08:00
Hoang Le
6708ef7792 tipc: update cluster capabilities if node deleted
There are two improvements when re-calculate cluster capabilities:

- When deleting a specific down node, need to re-calculate.
- In tipc_node_cleanup(), do not need to re-calculate if node
is still existing in cluster.

Acked-by: Jon Maloy <jon.maloy@ericsson.com>
Signed-off-by: Hoang Le <hoang.h.le@dektech.com.au>
Acked-by: Jon
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-11-06 17:37:43 -08:00
Francesco Ruggeri
3c28d99fc6 selftest: net: add some traceroute tests
Added the following traceroute tests.

IPV6:
Verify that in this scenario

       ------------------------ N2
        |                    |
      ------              ------  N3  ----
      | R1 |              | R2 |------|H2|
      ------              ------      ----
        |                    |
       ------------------------ N1
                 |
                ----
                |H1|
                ----

where H1's default route goes through R1 and R1's default route goes
through R2 over N2, traceroute6 from H1 to H2 reports R2's address
on N2 and not N1.

IPV4:
Verify that traceroute from H1 to H2 shows 1.0.1.1 in this scenario

                   1.0.3.1/24
---- 1.0.1.3/24    1.0.1.1/24 ---- 1.0.2.1/24    1.0.2.4/24 ----
|H1|--------------------------|R1|--------------------------|H2|
----            N1            ----            N2            ----

where net.ipv4.icmp_errors_use_inbound_ifaddr is set on R1 and
1.0.3.1/24 and 1.0.1.1/24 are respectively R1's primary and secondary
address on N1.

v2: fixed some typos, and have bridge in R1 instead of R2 in IPV6 test.

Signed-off-by: Francesco Ruggeri <fruggeri@arista.com>
Reviewed-by: David Ahern <dsahern@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-11-06 17:35:49 -08:00
David S. Miller
9990a79d8f Merge branch 'net-tls-add-a-TX-lock'
Jakub Kicinski says:

====================
net/tls: add a TX lock

Some time ago Pooja and Mallesham started reporting crashes with
an async accelerator. After trying to poke the existing logic into
shape I came to the conclusion that it can't be trusted, and to
preserve our sanity we should just add a lock around the TX side.

First patch removes the sk_write_pending checks from the write
space callbacks. Those don't seem to have a logical justification.

Patch 2 adds the TX lock and patch 3 associated test (which should
hang with current net).

Mallesham reports that even with these fixes applied the async
accelerator workload still occasionally hangs waiting for socket
memory. I suspect that's strictly related to the way async crypto
is integrated in TLS, so I think we should get these into net or
net-next and move from there.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2019-11-06 17:33:32 -08:00
Jakub Kicinski
41098af59d selftests/tls: add test for concurrent recv and send
Add a test which spawns 16 threads and performs concurrent
send and recv calls on the same socket.

Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Reviewed-by: Simon Horman <simon.horman@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-11-06 17:33:32 -08:00
Jakub Kicinski
79ffe6087e net/tls: add a TX lock
TLS TX needs to release and re-acquire the socket lock if send buffer
fills up.

TLS SW TX path currently depends on only allowing one thread to enter
the function by the abuse of sk_write_pending. If another writer is
already waiting for memory no new ones are allowed in.

This has two problems:
 - writers don't wake other threads up when they leave the kernel;
   meaning that this scheme works for single extra thread (second
   application thread or delayed work) because memory becoming
   available will send a wake up request, but as Mallesham and
   Pooja report with larger number of threads it leads to threads
   being put to sleep indefinitely;
 - the delayed work does not get _scheduled_ but it may _run_ when
   other writers are present leading to crashes as writers don't
   expect state to change under their feet (same records get pushed
   and freed multiple times); it's hard to reliably bail from the
   work, however, because the mere presence of a writer does not
   guarantee that the writer will push pending records before exiting.

Ensuring wakeups always happen will make the code basically open
code a mutex. Just use a mutex.

The TLS HW TX path does not have any locking (not even the
sk_write_pending hack), yet it uses a per-socket sg_tx_data
array to push records.

Fixes: a42055e8d2 ("net/tls: Add support for async encryption of records for performance")
Reported-by: Mallesham  Jatharakonda <mallesh537@gmail.com>
Reported-by: Pooja Trivedi <poojatrivedi@gmail.com>
Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Reviewed-by: Simon Horman <simon.horman@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-11-06 17:33:32 -08:00
Jakub Kicinski
02b1fa07bb net/tls: don't pay attention to sk_write_pending when pushing partial records
sk_write_pending being not zero does not guarantee that partial
record will be pushed. If the thread waiting for memory times out
the pending record may get stuck.

In case of tls_device there is no path where parial record is
set and writer present in the first place. Partial record is
set only in tls_push_sg() and tls_push_sg() will return an
error immediately. All tls_device callers of tls_push_sg()
will return (and not wait for memory) if it failed.

Fixes: a42055e8d2 ("net/tls: Add support for async encryption of records for performance")
Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Reviewed-by: Simon Horman <simon.horman@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-11-06 17:33:32 -08:00
Anirudh Venkataramanan
039c60c597 ice: Fix return value when SR-IOV is not supported
When the device is not capable of supporting SR-IOV -ENODEV is being
returned; -EOPNOTSUPP is more appropriate.

Signed-off-by: Anirudh Venkataramanan <anirudh.venkataramanan@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2019-11-06 16:41:45 -08:00
Brett Creeley
ff010eca05 ice: Rename VF function ice_vc_dis_vf to match its behavior
ice_vc_dis_vf() tells iavf that it's going to perform a reset
and then performs a software reset. This is misleading based on
the function name because the VF does not get disabled. So fix
this by changing the name to ice_vc_reset_vf().

Signed-off-by: Brett Creeley <brett.creeley@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2019-11-06 16:41:45 -08:00
Krzysztof Kazimierczak
133f4883f9 ice: Get rid of ice_cleanup_header
ice_cleanup_hdrs() has been stripped of most of its content, it only serves
as a wrapper for eth_skb_pad(). We can get rid of it altogether and
simplify the codebase.

Signed-off-by: Krzysztof Kazimierczak <krzysztof.kazimierczak@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2019-11-06 16:41:45 -08:00
Paul Greenwalt
e18ff11818 ice: print PCI link speed and width
Print message to inform user of PCI link speed and width.

Signed-off-by: Paul Greenwalt <paul.greenwalt@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2019-11-06 16:41:45 -08:00
Paul Greenwalt
5878589dc3 ice: print unsupported module message
Print message to inform user if unsupported module is inserted, and
extend the topology / configuration detection.

Signed-off-by: Paul Greenwalt <paul.greenwalt@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2019-11-06 16:41:45 -08:00
Mitch Williams
395594563b ice: write register with correct offset
The VF_MBX_ARQLEN register array is per-PF, not global, so we should not
use the absolute VF ID as an index. Instead, use the per-PF VF ID.

This fixes an issue with VFs on PFs other than 0 not seeing reset.

Signed-off-by: Mitch Williams <mitch.a.williams@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2019-11-06 16:41:45 -08:00
Michal Swiatkowski
eb0ee8abfe ice: Check for null pointer dereference when setting rings
Without this check rebuild vsi can lead to kernel panic.

Signed-off-by: Michal Swiatkowski <michal.swiatkowski@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2019-11-06 16:41:45 -08:00