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Commit Graph

816101 Commits

Author SHA1 Message Date
David S. Miller
cf29576fee wireless-drivers-next patches for 5.1
Last set of patches. A new hardware support for mt76 otherwise quite
 normal.
 
 Major changes:
 
 mt76
 
 * add driver for MT7603E/MT7628
 
 ath10k
 
 * more preparation for SDIO support
 
 wil6210
 
 * support up to 20 stations in AP mode
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Merge tag 'wireless-drivers-next-for-davem-2019-03-01' of git://git.kernel.org/pub/scm/linux/kernel/git/kvalo/wireless-drivers-next

Kalle Valo says:

====================
wireless-drivers-next patches for 5.1

Last set of patches. A new hardware support for mt76 otherwise quite
normal.

Major changes:

mt76

* add driver for MT7603E/MT7628

ath10k

* more preparation for SDIO support

wil6210

* support up to 20 stations in AP mode
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2019-03-02 00:56:59 -08:00
Mao Wenan
07f12b26e2 net: sit: fix memory leak in sit_init_net()
If register_netdev() is failed to register sitn->fb_tunnel_dev,
it will go to err_reg_dev and forget to free netdev(sitn->fb_tunnel_dev).

BUG: memory leak
unreferenced object 0xffff888378daad00 (size 512):
  comm "syz-executor.1", pid 4006, jiffies 4295121142 (age 16.115s)
  hex dump (first 32 bytes):
    00 e6 ed c0 83 88 ff ff 00 00 00 00 00 00 00 00  ................
    00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
backtrace:
    [<00000000d6dcb63e>] kvmalloc include/linux/mm.h:577 [inline]
    [<00000000d6dcb63e>] kvzalloc include/linux/mm.h:585 [inline]
    [<00000000d6dcb63e>] netif_alloc_netdev_queues net/core/dev.c:8380 [inline]
    [<00000000d6dcb63e>] alloc_netdev_mqs+0x600/0xcc0 net/core/dev.c:8970
    [<00000000867e172f>] sit_init_net+0x295/0xa40 net/ipv6/sit.c:1848
    [<00000000871019fa>] ops_init+0xad/0x3e0 net/core/net_namespace.c:129
    [<00000000319507f6>] setup_net+0x2ba/0x690 net/core/net_namespace.c:314
    [<0000000087db4f96>] copy_net_ns+0x1dc/0x330 net/core/net_namespace.c:437
    [<0000000057efc651>] create_new_namespaces+0x382/0x730 kernel/nsproxy.c:107
    [<00000000676f83de>] copy_namespaces+0x2ed/0x3d0 kernel/nsproxy.c:165
    [<0000000030b74bac>] copy_process.part.27+0x231e/0x6db0 kernel/fork.c:1919
    [<00000000fff78746>] copy_process kernel/fork.c:1713 [inline]
    [<00000000fff78746>] _do_fork+0x1bc/0xe90 kernel/fork.c:2224
    [<000000001c2e0d1c>] do_syscall_64+0xc8/0x580 arch/x86/entry/common.c:290
    [<00000000ec48bd44>] entry_SYSCALL_64_after_hwframe+0x49/0xbe
    [<0000000039acff8a>] 0xffffffffffffffff

Signed-off-by: Mao Wenan <maowenan@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-03-02 00:53:23 -08:00
Andrew Lunn
a6da21bb0e net: dsa: mv88e6xxx: Fix statistics on mv88e6161
Despite what the datesheet says, the silicon implements the older way
of snapshoting the statistics. Change the op.

Reported-by: Chris.Healy@zii.aero
Tested-by: Chris.Healy@zii.aero
Fixes: 0ac64c3949 ("net: dsa: mv88e6xxx: mv88e6161 uses mv88e6320 stats snapshot")
Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-03-02 00:45:04 -08:00
Ido Schimmel
2a8e4997db net: ipv4: Fix NULL pointer dereference in route lookup
When calculating the multipath hash for input routes the flow info is
not available and therefore should not be used.

Fixes: 24ba14406c ("route: Add multipath_hash in flowi_common to make user-define hash")
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Cc: wenxu <wenxu@ucloud.cn>
Acked-by: wenxu <wenxu@ucloud.cn>
Acked-by: Nikolay Aleksandrov <nikolay@cumulusnetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-03-02 00:41:53 -08:00
David S. Miller
04c2632a6c Merge branch 'net-mvpp2-fixes-and-improvements'
Antoine Tenart says:

====================
net: mvpp2: fixes and improvements

This series aims to improve the Marvell PPv2 driver and to fix various
issues we encountered while testing the ports in many different
configurations. The series is based on top of Russell PPv2 phylink
rework and improvement.

I'm not sending a v2 of the previous fixes series as half the patches
are not the same and lots of development happened in between.

While this series contains fixes, it's sent to net-next as it is based
on top of Russell patches that were merged into net-next. I'm also
aiming at net-next as the series reworks critical paths of the PPv2
driver, such as the reset handling of various blocks, to let more weeks
for users to tests and for possible fixes to be sent before it lands
into a stable kernel version.

The series is divided into three parts:

- Patches 1 to 3 are cosmetic changes, sent alongside the series, as I
  saw these small issues while working on this.

- Patches 5 to 8 are fixing (or improving) individual issues that we
  found while testing PPv2.1 and PPv2.2 ports while using various
  interfaces.

  Notable fixes are we support back RGMII interfaces (on both PPv2.1 and
  PPv2.2), as their support was broken by previous patches. We also
  reworked the RXQ computation as the RXQ assignment was not checking
  the maximum number of RXQ available, and was broken for PPv2.1.

- As discussed in a previous fixes series, patches 9 to 15 rework the
  way blocks are set in reset in the PPv2 engine (plus related changes).

  There are four blocks we want to control the reset status: two MAC
  (GMAC and XLG MAC) and two PCS (MPCS and XPCS). The XLG MAC is used
  for 10G connexions and uses the MPCS or the XPCS depending on the mode
  used (10GKR / XAUI / RXAUI) and the GMAC is used for the other modes.

  The idea is to set all blocks in reset by default, and when not used,
  and to de-assert the reset only when a block is used. There are four
  cases to take in account:

  1. Boot time: all four blocks should be put in reset, as we do not
     know their initial state (configured by the firmware/bootloader).

  2. Link up: only the blocks used by a given mode should be put out of
     reset (eg. 10GKR uses the XLG MAC and the MPCS).

  3. Mode reconfiguration: some ports may support mode reconfiguration,
     and switching between the GMAC and the XLG MAC (or between the two
     PCS). All blocks should be put in reset, and only the one used
     should be put out of reset.

  4. Link down: all four blocks are put in reset.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2019-03-01 23:23:35 -08:00
Antoine Tenart
1f69afce38 net: mvpp2: set the GMAC, XLG MAC, XPCS and MPCS in reset when a port is down
This patch adds calls in the stop() helper to ensure both MACs and
both PCS blocks are set in reset when the user manually sets a port
down. This is done so that we have the exact same block reset states at
boot time and when a port is set down.

Signed-off-by: Antoine Tenart <antoine.tenart@bootlin.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-03-01 23:23:35 -08:00
Antoine Tenart
7409e66e9e net: mvpp2: set the XPCS and MPCS in reset when not used
This patch sets both the XPCS and MPCS blocks in reset when they aren't
used. This is done both at boot time and when reconfiguring a port mode.
The advantage now is that only the PCS used is set out of reset when the
port is configured (10GKR uses the MCPS while RXAUI uses the XPCS).

Signed-off-by: Antoine Tenart <antoine.tenart@bootlin.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-03-01 23:23:35 -08:00
Antoine Tenart
5434e8faf0 net: mvpp2: reset the MACs when reconfiguring a port
This patch makes sure both PPv2 MACs (GMAC + XLG MAC) are set in reset
while a port is reconfigured. This is done so that we make sure a MAC is
in a reset state when not used, as only one of the two will be set out
of reset after the port is configured properly.

Signed-off-by: Antoine Tenart <antoine.tenart@bootlin.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-03-01 23:23:35 -08:00
Antoine Tenart
649e51d560 net: mvpp2: rework the XLG MAC reset handling
This patch reworks the way the XLG MAC is set in reset: the XLG MAC is
set in reset at probe time and taken out of this state only when used.
The idea is to move forward a situation where only the blocks used are
taken out of reset. This also has the effect to handle the GMAC and the
XLG MAC in a similar way (the GMAC already is set in reset at boot
time).

Signed-off-by: Antoine Tenart <antoine.tenart@bootlin.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-03-01 23:23:35 -08:00
Antoine Tenart
1970ee9614 net: mvpp2: force the XLG MAC link up or down when not using in-band
This patch force the XLG MAC link state in the phylink link_up() and
link_down() helpers when not using in-band auto-negotiation. This mimics
what's already done for the GMAC and follows what's advised in the
phylink documentation.

Signed-off-by: Antoine Tenart <antoine.tenart@bootlin.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-03-01 23:23:34 -08:00
Antoine Tenart
f17e70d258 net: mvpp2: only update the XLG configuration when needed
This patch improves the XLG configuration function, to only update the
XLG configuration register when a change is needed. This helps not
writing over and over the same XLG configuration each time phylink
request the MAC to be configured. This mimics the GMAC configuration
function.

Signed-off-by: Antoine Tenart <antoine.tenart@bootlin.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-03-01 23:23:34 -08:00
Antoine Tenart
6b10bfc51c net: mvpp2: always disable both MACs when disabling a port
This patch modifies the port_disable() helper to always disable both the
GMAC and the XLG MAC when called. At boot time we do not know of a port
was enabled in the firmware/bootloader, and if so what mode was used
(hence which of the two MACs was used).

This also help in implementing a logic where all blocks are disabled
when not used, and only enabled regarding the current mode used on a
given port.

Signed-off-by: Antoine Tenart <antoine.tenart@bootlin.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-03-01 23:23:34 -08:00
Antoine Tenart
9a490e3406 net: mvpp2: some AN fields require the link to be down when updated
The GMAC configuration helper modifies values in the auto-negotiation
register. Some of its values require the port to be forced down when
modifying their values. This patches fixes the check made on the bit to
be updated in this register, so that the port is forced down when
needed. This fix cases where some of those parameters were updated, but
not taken into account, such as when using RGMII interfaces.

Fixes: d14e078f23 ("net: marvell: mvpp2: only reprogram what is necessary on mac_config")
Signed-off-by: Antoine Tenart <antoine.tenart@bootlin.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-03-01 23:23:34 -08:00
Antoine Tenart
3f13684948 net: mvpp2: fix the computation of the RXQs
The patch fixes the computation of RXQs being used by the PPv2 driver,
which is set depending on the PPv2 engine version and the queue mode
used. There are three cases:

- PPv2.1: 1 RXQ per CPU.
- PPV2.2 with MVPP2_QDIST_MULTI_MODE: 1 RXQ per CPU.
- PPv2.2 with MVPP2_QDIST_SINGLE_MODE: 1 RXQ is shared between the CPUs.

The PPv2 engine supports a maximum of 32 queues per port. This patch
adds a check so that we do not overstep this maximum.

It appeared the calculation was broken for PPv2.1 engines since
f8c6ba8424, as PPv2.1 ports ended up with a single RXQ while they
needed 4. This patch fixes it.

Fixes: f8c6ba8424 ("net: mvpp2: use only one rx queue per port per CPU")
Signed-off-by: Antoine Tenart <antoine.tenart@bootlin.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-03-01 23:23:34 -08:00
Antoine Tenart
8b318f30ab net: mvpp2: fix validate for PPv2.1
The Phylink validate function is the Marvell PPv2 driver makes a check
on the GoP id. This is valid an has to be done when using PPv2.2 engines
but makes no sense when using PPv2.1. The check done when using an RGMII
interface makes sure the GoP id is not 0, but this breaks PPv2.1. Fixes
it.

Fixes: 0fb628f0f2 ("net: mvpp2: fix phylink handling of invalid PHY modes")
Signed-off-by: Antoine Tenart <antoine.tenart@bootlin.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-03-01 23:23:34 -08:00
Antoine Tenart
d78a18091f net: mvpp2: reconfiguring the port interface is PPv2.2 specific
This patch adds a check on the PPv2 version in-use not to reconfigure
the port mode when an interface is updated when using PPv2.1 as the
functions called are PPv2.2 specific.

Signed-off-by: Antoine Tenart <antoine.tenart@bootlin.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-03-01 23:23:34 -08:00
Antoine Tenart
052f7c8bac net: mvpp2: a port can be disabled even if we use the link IRQ
We had a check in the mvpp2_mac_link_down() function (called by phylink)
to avoid disabling the port when link interrupts are used. It turned out
the interrupt can still be used with the port disabled. We can thus
remove this check.

Signed-off-by: Antoine Tenart <antoine.tenart@bootlin.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-03-01 23:23:34 -08:00
Antoine Tenart
0caa756b77 net: mvpp2: fix alignment of MVPP2_GMAC_CONFIG_MII_SPEED definition
Cosmetic patch fix the alignment of the MVPP2_GMAC_CONFIG_MII_SPEED
macro definition.

Signed-off-by: Antoine Tenart <antoine.tenart@bootlin.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-03-01 23:23:34 -08:00
Antoine Tenart
31383c03c0 net: mvpp2: update the port documentation regarding the GoP
The Marvell PPv2 port structure stores the GoP id of a given port. This
information is specific to PPv2.2, but cannot be used by PPv2.1. Update
its comment to denote this specificity.

Signed-off-by: Antoine Tenart <antoine.tenart@bootlin.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-03-01 23:23:34 -08:00
Antoine Tenart
6bdb87ef9f net: mvpp2: fix a typo in the header
This cosmetic patch fixes a typo made in a comment in the Marvell PPv2
Ethernet driver header.

Signed-off-by: Antoine Tenart <antoine.tenart@bootlin.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-03-01 23:23:34 -08:00
Arjun Vynipadath
57d37aea0e cxgb4vf: Call netif_carrier_off properly in pci_probe
netif_carrier_off() should be called only after register_netdev().

Signed-off-by: Arjun Vynipadath <arjun@chelsio.com>
Signed-off-by: Vishal Kulkarni <vishal@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-03-01 23:21:06 -08:00
David S. Miller
0960004beb Merge branch 'cxgb4-vf-link-state'
Arjun Vynipadath says:

====================
cxgb4/cxgb4vf: VF link state support

This series of patches adds support for ndo_set_vf_link_state in
cxgb4 driver.

Patch 1 implements ndo_set_vf_link_state
Patch 2 reverts the existing force_link_up behaviour for cxgb4vf driver.

v2:
- Using reverse christmas tree for variable declaration in Patch 1
- Patch 2 has no change
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2019-03-01 23:20:20 -08:00
Arjun Vynipadath
502c1a1612 cxgb4vf: Revert force link up behaviour
Reverting force link up changes since this behaviour can be
achieved using VF link state feature.

Reverts:
commit 0913667ab3 ("cxgb4vf: Forcefully link up virtual interfaces")

Signed-off-by: Arjun Vynipadath <arjun@chelsio.com>
Signed-off-by: Vishal Kulkarni <vishal@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-03-01 23:20:20 -08:00
Arjun Vynipadath
8b965f3f64 cxgb4: Add VF Link state support
Use ndo_set_vf_link_state to control the link states associated
with the virtual interfaces.

Signed-off-by: Arjun Vynipadath <arjun@chelsio.com>
Signed-off-by: Vishal Kulkarni <vishal@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-03-01 23:20:20 -08:00
Arjun Vynipadath
3d78bfaa2e cxgb4vf: Prefix adapter flags with CXGB4VF
Some of these macros were conflicting with global namespace,
hence prefixing them with CXGB4VF.

Signed-off-by: Arjun Vynipadath <arjun@chelsio.com>
Signed-off-by: Vishal Kulkarni <vishal@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-03-01 23:18:12 -08:00
YueHaibing
f819cd926c drivers: net: Remove unnecessary semicolon
drivers/net/dsa/mt7530.c:649:3-4: Unneeded semicolon
drivers/net/ethernet/cisco/enic/enic_clsf.c:35:2-3: Unneeded semicolon
drivers/net/ethernet/faraday/ftgmac100.c:1640:2-3: Unneeded semicolon
drivers/net/ethernet/mediatek/mtk_eth_soc.c:229:2-3: Unneeded semicolon
drivers/net/usb/sr9700.c:437:2-3: Unneeded semicolon

Remove unneeded semicolon.

Generated by: scripts/coccinelle/misc/semicolon.cocci

Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Acked-by: Sean Wang <sean.wang@mediatek.com> for mt7530 and mtk_eth_soc
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-03-01 23:13:49 -08:00
David S. Miller
061ae26ff4 Merge branch 'SO_MAX_PACING_RATE-64-bit'
Eric Dumazet says:

====================
net: 64bit support for SO_MAX_PACING_RATE

64bit kernels adopted 64bit type for sk_max_pacing_rate in linux-4.20

We can change how we implement SO_MAX_PACING_RATE socket option
to support 64bit values to/from user space as well.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2019-03-01 23:08:31 -08:00
Eric Dumazet
677f136c6b net: support 64bit rates for getsockopt(SO_MAX_PACING_RATE)
For legacy applications using 32bit variable, SO_MAX_PACING_RATE
has to cap the returned value to 0xFFFFFFFF, meaning that
rates above 34.35 Gbit are capped.

This patch allows applications to read socket pacing rate
at full resolution, if they provide a 64bit variable to store it,
and the kernel is 64bit.

Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-03-01 23:08:30 -08:00
Eric Dumazet
6bdef102da net: support 64bit values for setsockopt(SO_MAX_PACING_RATE)
64bit kernels now support 64bit pacing rates.

This commit changes setsockopt() to accept 64bit
values provided by applications.

Old applications providing 32bit value are still supported,
but limited to the old 34Gbit limitation.

Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-03-01 23:08:30 -08:00
Lucas Bates
255c1c7279 tc-testing: Allow test cases to be skipped
By adding a check for an optional key/value pair to the test case
data, individual test cases may be skipped to prevent tdc from
aborting a test run due to setup or teardown failure.

If a test case is skipped, it will still appear in the results
output to allow for a consistent number of executed tests in each
run. However, the test will be marked as skipped.

This support for skipping extends to any plugins that may generate
additional results for each executed test.

Signed-off-by: Lucas Bates <lucasb@mojatatu.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-03-01 23:05:06 -08:00
Jiri Benc
cf1c9ccba7 geneve: correctly handle ipv6.disable module parameter
When IPv6 is compiled but disabled at runtime, geneve_sock_add returns
-EAFNOSUPPORT. For metadata based tunnels, this causes failure of the whole
operation of bringing up the tunnel.

Ignore failure of IPv6 socket creation for metadata based tunnels caused by
IPv6 not being available.

This is the same fix as what commit d074bf9600 ("vxlan: correctly handle
ipv6.disable module parameter") is doing for vxlan.

Note there's also commit c0a47e44c0 ("geneve: should not call rt6_lookup()
when ipv6 was disabled") which fixes a similar issue but for regular
tunnels, while this patch is needed for metadata based tunnels.

Signed-off-by: Jiri Benc <jbenc@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-03-01 22:07:56 -08:00
David S. Miller
f08d6114b7 Merge git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf
Alexei Starovoitov says:

====================
pull-request: bpf 2019-03-01

The following pull-request contains BPF updates for your *net* tree.

The main changes are:

1) fix sanitation rewrite, from Daniel.

2) fix error path on map_new_fd, from Peng.

3) fix icache flush address, from Paul.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2019-03-01 21:48:08 -08:00
David S. Miller
745732c8ec Merge branch 'mlxsw-rehash-split'
Ido Schimmel says:

====================
mlxsw: spectrum_acl: Split rehash work into chunks

Jiri says:

When rehash happens on a vregion with many rules and they are being
migrated, it might take significant time to finish the job. During that
time vregion->lock is taken which prevents rules from being
added/deleted from the vregion.

Aim of this patchset is to allow to interrupt migration of rules during
rehash, reschedule and give chance for rules to be added/deleted. Then
continue migration in another execution of scheduled work.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2019-03-01 21:44:11 -08:00
Jiri Pirko
b2c091ce46 mlxsw: spectrum_acl: Make mlxsw_sp_acl_tcam_vregion_rehash() return void
The return value is ignored anyway, so just return void.

Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-03-01 21:44:11 -08:00
Jiri Pirko
6f9579d4e3 mlxsw: spectrum_acl: Remember where to continue rehash migration
Store pointer to vchunk where the migration was interrupted, as well as
ventry pointer to start from and to stop at (during rollback). This
saved pointers need to be forgotten in case of ventries list or vchunk
list changes, which is done by couple of "changed" helpers.

Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-03-01 21:44:11 -08:00
Jiri Pirko
c9c9af91f1 mlxsw: spectrum_acl: Allow to interrupt/continue rehash work
Currently, migration of vregions with many entries may take long time
during which insertions and removals of the rules are blocked
due to wait to acquire vregion->lock.

To overcome this, allow to interrupt and continue rehash work according
to the set credits - number of rules to migrate.

Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-03-01 21:44:11 -08:00
Jiri Pirko
8435005185 mlxsw: spectrum_acl: Do rollback as another call to mlxsw_sp_acl_tcam_vchunk_migrate_all()
In order to simplify the code and to prepare it for
interrupted/continued migration process, do the rollback in case of
migration error as another call to mlxsw_sp_acl_tcam_vchunk_migrate_all().
It can be understood as "migrate all back".

Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-03-01 21:44:11 -08:00
Jiri Pirko
844f01da93 mlxsw: spectrum_acl: Put vchunk migrate start/end code into separate functions
In preparations of interrupt/continue of rehash work, put the code that
is done at the beginning/end of vchunk migrate function into separate
functions.

Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-03-01 21:44:11 -08:00
Jiri Pirko
220f4fba3d mlxsw: spectrum_acl: Put this_is_rollback to rehash context struct
Put the this_is_rollback flag into rehash context struct in preparations
for interrupt/continue of rehash work.

Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-03-01 21:44:11 -08:00
Jiri Pirko
2c331593c9 mlxsw: spectrum_acl: Rename variables in mlxsw_sp_acl_tcam_ventry_migrate()
Remove some of variables in function mlxsw_sp_acl_tcam_ventry_migrate()
so the names are aligned with the rest of the code.

Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-03-01 21:44:11 -08:00
Jiri Pirko
e1d2f7a972 mlxsw: spectrum_acl: assign vchunk->chunk by the newly created chunk
Make the vchunk->chunk contain pointer of a new chunk we migrate to.
In case of a rollback, it contains the original chunk.

Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-03-01 21:44:10 -08:00
Jiri Pirko
a86838e46b mlxsw: spectrum_acl: assign vregion->region by the newly created region
Make the vregion->region contain pointer of a new region we migrate to.
In case of a rollback, it contains the original region.

Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-03-01 21:44:10 -08:00
Jiri Pirko
a9550d0f07 mlxsw: spectrum_acl: Push code start/end from mlxsw_sp_acl_tcam_vregion_migrate()
Push code from the beginning and end of function
mlxsw_sp_acl_tcam_vregion_migrate() into rehash_start()/end() functions.
Then all the things needed to be done before and after the actual
migration process will be grouped together.

Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-03-01 21:44:10 -08:00
Jiri Pirko
1667f7667d mlxsw: spectrum_acl: Push rehash start/end code into separate functions
In preparations for interrupt/continue of rehash work, put the code at
the beginning/end of the rehash function into separate functions.

Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-03-01 21:44:10 -08:00
Jiri Pirko
559c276810 mlxsw: spectrum_acl: Introduce new rehash context struct and save hint_priv there
Prepare for continued migration. Introduce a new structure to track
rehash context and save hint_priv into it.

Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-03-01 21:44:10 -08:00
Jiri Pirko
6ca219e7de mlxsw: spectrum_acl: Don't migrate already migrated entry
Check if the entry is already in a chunk where we want it to be. In that
case, skip migration. This is preparation for "per parts" migration
where this situation may occur.

Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-03-01 21:44:10 -08:00
Jiri Pirko
f9b274ce01 mlxsw: spectrum_acl: Push rehash dw struct into rehash sub-struct
More rehash related fields are going to come. Push "dw" into sub-struct
that will accommodate the others as well.

Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-03-01 21:44:10 -08:00
Heiner Kallweit
ed8fe20205 net: dsa: mv88e6xxx: prevent interrupt storm caused by mv88e6390x_port_set_cmode
When debugging another issue I faced an interrupt storm in this
driver (88E6390, port 9 in SGMII mode), consisting of alternating
link-up / link-down interrupts. Analysis showed that the driver
wanted to set a cmode that was set already. But so far
mv88e6390x_port_set_cmode() doesn't check this and powers down
SERDES, what causes the link to break, and eventually results in
the described interrupt storm.

Fix this by checking whether the cmode actually changes. We want
that the very first call to mv88e6390x_port_set_cmode() always
configures the registers, therefore initialize port.cmode with
a value that is different from any supported cmode value.
We have to take care that we only init the ports cmode once
chip->info->num_ports is set.

v2:
- add small helper and init the number of actual ports only

Fixes: 364e9d7776 ("net: dsa: mv88e6xxx: Power on/off SERDES on cmode change")
Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-03-01 21:37:05 -08:00
Florian Fainelli
91cf8eceff switchdev: Remove unused transaction item queue
There are no more in tree users of the
switchdev_trans_item_{dequeue,enqueue} or switchdev_trans_item structure
in the kernel since commit 00fc0c51e3 ("rocker: Change world_ops API
and implementation to be switchdev independant").

Remove this unused code and update the documentation accordingly since.

Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Acked-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-03-01 21:35:19 -08:00
Daniel Borkmann
3612af783c bpf: fix sanitation rewrite in case of non-pointers
Marek reported that he saw an issue with the below snippet in that
timing measurements where off when loaded as unpriv while results
were reasonable when loaded as privileged:

    [...]
    uint64_t a = bpf_ktime_get_ns();
    uint64_t b = bpf_ktime_get_ns();
    uint64_t delta = b - a;
    if ((int64_t)delta > 0) {
    [...]

Turns out there is a bug where a corner case is missing in the fix
d3bd7413e0 ("bpf: fix sanitation of alu op with pointer / scalar
type from different paths"), namely fixup_bpf_calls() only checks
whether aux has a non-zero alu_state, but it also needs to test for
the case of BPF_ALU_NON_POINTER since in both occasions we need to
skip the masking rewrite (as there is nothing to mask).

Fixes: d3bd7413e0 ("bpf: fix sanitation of alu op with pointer / scalar type from different paths")
Reported-by: Marek Majkowski <marek@cloudflare.com>
Reported-by: Arthur Fabre <afabre@cloudflare.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Link: https://lore.kernel.org/netdev/CAJPywTJqP34cK20iLM5YmUMz9KXQOdu1-+BZrGMAGgLuBWz7fg@mail.gmail.com/T/
Acked-by: Song Liu <songliubraving@fb.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
2019-03-01 21:24:08 -08:00