linux-2.6-microblaze.git
4 years agoice: Always set prefena when configuring an Rx queue
Brett Creeley [Wed, 26 Jun 2019 09:20:15 +0000 (02:20 -0700)]
ice: Always set prefena when configuring an Rx queue

Currently we are always setting prefena to 0. This is causing the
hardware to only fetch descriptors when there are none free in the cache
for a received packet instead of prefetching when it has used the last
descriptor regardless of incoming packets. Fix this by allowing the
hardware to prefetch Rx descriptors.

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>
4 years agoice: Move vector base setup to PF VSI
Tony Nguyen [Wed, 26 Jun 2019 09:20:14 +0000 (02:20 -0700)]
ice: Move vector base setup to PF VSI

When interrupt tracking was refactored, during rebuild, the call to
ice_vsi_setup_vector_base() was inadvertently removed from the PF VSI
instead of being removed from the VF VSI. During reset, the failure to
properly setup the vector base generates a call trace. Correct this so
that resets/rebuilds properly complete.

Fixes: cbe66bfee6a0 ("ice: Refactor interrupt tracking")
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>
4 years agoice: track hardware stat registers past rollover
Jacob Keller [Wed, 26 Jun 2019 09:20:13 +0000 (02:20 -0700)]
ice: track hardware stat registers past rollover

Currently, ice_stat_update32 and ice_stat_update40 will limit the
value of the software statistic to 32 or 40 bits wide, depending on
which register is being read.

This means that if a driver is running for a long time, the displayed
software register values will roll over to zero at 40 bits or 32 bits.

This occurs because the functions directly assign the difference between
the previous value and current value of the hardware statistic.

Instead, add this value to the current software statistic, and then
update the previous value.

In this way, each time ice_stat_update40 or ice_stat_update32 are
called, they will increment the software tracking value by the
difference of the hardware register from its last read. The software
tracking value will correctly count up until it overflows a u64.

The only requirement is that the ice_stat_update functions be called at
least once each time the hardware register overflows.

While we're fixing ice_stat_update40, modify it to use rd64 instead of
two calls to rd32. Additionally, drop the now unnecessary hireg
function parameter.

Signed-off-by: Jacob Keller <jacob.e.keller@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>
4 years agoice: add lp_advertising flow control support
Paul Greenwalt [Wed, 26 Jun 2019 09:20:12 +0000 (02:20 -0700)]
ice: add lp_advertising flow control support

Add support for reporting link partner advertising when
ETHTOOL_GLINKSETTINGS defined. Get pause param reports the Tx/Rx
pause configured, and then ethtool issues ETHTOOL_GSET ioctl and
ice_get_settings_link_up reports the negotiated Tx/Rx pause. Negotiated
pause frame report per IEEE 802.3-2005 table 288-3.

$ ethtool --show-pause ens6f0
Pause parameters for ens6f0:
Autonegotiate:  on
RX:             on
TX:             on
RX negotiated:  on
TX negotiated:  on

$ ethtool ens6f0
Settings for ens6f0:
        Supported ports: [ FIBRE ]
        Supported link modes:   25000baseCR/Full
        Supported pause frame use: Symmetric
        Supports auto-negotiation: Yes
        Supported FEC modes: None BaseR RS
        Advertised link modes:  25000baseCR/Full
        Advertised pause frame use: Symmetric Receive-only
        Advertised auto-negotiation: Yes
        Advertised FEC modes: None BaseR RS
        Link partner advertised link modes:  Not reported
        Link partner advertised pause frame use: Symmetric
        Link partner advertised auto-negotiation: Yes
        Link partner advertised FEC modes: Not reported
        Speed: 25000Mb/s
        Duplex: Full
        Port: Direct Attach Copper
        PHYAD: 0
        Transceiver: internal
        Auto-negotiation: on
        Supports Wake-on: g
        Wake-on: g
        Current message level: 0x00000007 (7)
                               drv probe link
        Link detected: yes

When ETHTOOL_GLINKSETTINGS is not defined, get pause param reports the
negotiated Tx/Rx pause.

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>
4 years agostaging/octeon: Fix build error without CONFIG_NETDEVICES
YueHaibing [Wed, 31 Jul 2019 16:02:19 +0000 (18:02 +0200)]
staging/octeon: Fix build error without CONFIG_NETDEVICES

While do COMPILE_TEST build without CONFIG_NETDEVICES,
we get Kconfig warning:

WARNING: unmet direct dependencies detected for PHYLIB
  Depends on [n]: NETDEVICES [=n]
  Selected by [y]:
  - OCTEON_ETHERNET [=y] && STAGING [=y] && (CAVIUM_OCTEON_SOC && NETDEVICES [=n] || COMPILE_TEST [=y])

Reported-by: Hulk Robot <hulkci@huawei.com>
Reported-by: Mark Brown <broonie@kernel.org>
Fixes: 171a9bae68c7 ("staging/octeon: Allow test build on !MIPS")
Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
4 years agoMerge tag 'mac80211-next-for-davem-2019-07-31' of git://git.kernel.org/pub/scm/linux...
David S. Miller [Wed, 31 Jul 2019 15:59:41 +0000 (08:59 -0700)]
Merge tag 'mac80211-next-for-davem-2019-07-31' of git://git./linux/kernel/git/jberg/mac80211-next

Johannes Berg says:

====================
We have a reasonably large number of changes:
 * lots more HE (802.11ax) support, particularly things
   relevant for the the AP side, but also mesh support
 * debugfs cleanups from Greg
 * some more work on extended key ID
 * start using genl parallel_ops, as preparation for
   weaning ourselves off RTNL and getting parallelism
 * various other changes all over
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
4 years agoMerge branch 'mlxsw-Test-coverage-for-DSCP-leftover-fix'
David S. Miller [Wed, 31 Jul 2019 15:47:14 +0000 (08:47 -0700)]
Merge branch 'mlxsw-Test-coverage-for-DSCP-leftover-fix'

Petr Machata says:

====================
mlxsw: Test coverage for DSCP leftover fix

This patch set fixes some global scope pollution issues in the DSCP tests
(in patch #1), and then proceeds (in patch #2) to add a new test for
checking whether, after DSCP prioritization rules are removed from a port,
DSCP rewrites consistently to zero, instead of the last removed rule still
staying in effect.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
4 years agoselftests: mlxsw: Add a test for leftover DSCP rule
Petr Machata [Wed, 31 Jul 2019 10:30:27 +0000 (10:30 +0000)]
selftests: mlxsw: Add a test for leftover DSCP rule

Commit dedfde2fe1c4 ("mlxsw: spectrum_dcb: Configure DSCP map as the last
rule is removed") fixed a problem in mlxsw where last DSCP rule to be
removed remained in effect when DSCP rewrite was applied.

Add a selftest that covers this problem.

Signed-off-by: Petr Machata <petrm@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
4 years agoselftests: mlxsw: Fix local variable declarations in DSCP tests
Petr Machata [Wed, 31 Jul 2019 10:30:26 +0000 (10:30 +0000)]
selftests: mlxsw: Fix local variable declarations in DSCP tests

These two tests have some problems in the global scope pollution and on
contrary, contain unnecessary local declarations. Fix them.

Signed-off-by: Petr Machata <petrm@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
4 years agomyri10ge: remove unneeded variable
Ding Xiang [Wed, 31 Jul 2019 08:53:46 +0000 (16:53 +0800)]
myri10ge: remove unneeded variable

"error" is unneeded,just return 0

Signed-off-by: Ding Xiang <dingxiang@cmss.chinamobile.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
4 years agonet: ag71xx: Slighly simplify code in 'ag71xx_rings_init()'
Christophe JAILLET [Wed, 31 Jul 2019 08:06:38 +0000 (10:06 +0200)]
net: ag71xx: Slighly simplify code in 'ag71xx_rings_init()'

A few lines above, we have:
   tx_size = BIT(tx->order);

So use 'tx_size' directly to be consistent with the way 'rx->descs_cpu' and
'rx->descs_dma' are computed below.

Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Signed-off-by: David S. Miller <davem@davemloft.net>
4 years agomac80211: HE STA disassoc due to QOS NULL not sent
Shay Bar [Wed, 3 Jul 2019 13:18:48 +0000 (16:18 +0300)]
mac80211: HE STA disassoc due to QOS NULL not sent

In case of HE AP-STA link, ieee80211_send_nullfunc() will not
send the QOS NULL packet to check if AP is still associated.

In this case, probe_send_count will be non-zero and
ieee80211_sta_work() will later disassociate the AP, even
though no packet was ever sent.

Fix this by decrementing probe_send_count and not calling
ieee80211_send_nullfunc() in case of HE link, so that we
still wait for some time for the AP beacon to reappear and
don't disconnect right away.

Signed-off-by: Shay Bar <shay.bar@celeno.com>
Link: https://lore.kernel.org/r/20190703131848.22879-1-shay.bar@celeno.com
[clarify commit message]
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
4 years agomac80211: allow setting spatial reuse parameters from bss_conf
John Crispin [Tue, 30 Jul 2019 16:37:01 +0000 (18:37 +0200)]
mac80211: allow setting spatial reuse parameters from bss_conf

Store the OBSS PD parameters inside bss_conf when bringing up an AP and/or
when a station connects to an AP. This allows the driver to configure the
HW accordingly.

Signed-off-by: John Crispin <john@phrozen.org>
Link: https://lore.kernel.org/r/20190730163701.18836-3-john@phrozen.org
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
4 years agonl80211: add strict start type
Johannes Berg [Wed, 31 Jul 2019 08:58:20 +0000 (10:58 +0200)]
nl80211: add strict start type

Add a strict start type so all new attributes starting from
NL80211_ATTR_HE_OBSS_PD are validated strictly.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
4 years agocfg80211: add support for parsing OBBS_PD attributes
John Crispin [Tue, 30 Jul 2019 16:37:00 +0000 (18:37 +0200)]
cfg80211: add support for parsing OBBS_PD attributes

Add the data structure, policy and parsing code allowing userland to send
the OBSS PD information into the kernel.

Signed-off-by: John Crispin <john@phrozen.org>
Link: https://lore.kernel.org/r/20190730163701.18836-2-john@phrozen.org
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
4 years agomac80211: reject zero MAC address in add station
Karthikeyan Periyasamy [Wed, 24 Jul 2019 09:16:10 +0000 (14:46 +0530)]
mac80211: reject zero MAC address in add station

This came up in fuzz testing, and really we don't consider
all-zeroes to be a valid MAC address in most places, so
also reject it here to avoid confusion later on.

Signed-off-by: Karthikeyan Periyasamy <periyasa@codeaurora.org>
Link: https://lore.kernel.org/r/1563959770-21570-1-git-send-email-periyasa@codeaurora.org
[rewrite commit message]
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
4 years agocfg80211: use parallel_ops for genl
Johannes Berg [Mon, 29 Jul 2019 14:31:09 +0000 (16:31 +0200)]
cfg80211: use parallel_ops for genl

Over time, we really need to get rid of all of our global locking.
One of the things needed is to use parallel_ops. This isn't really
the most important (RTNL is much more important) but OTOH we just
keep adding uses of genl_family_attrbuf() now. Use .parallel_ops to
disallow this.

Reviewed-By: Denis Kenzior <denkenz@gmail.com>
Link: https://lore.kernel.org/r/20190729143109.18683-1-johannes@sipsolutions.net
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
4 years agomac80211_hwsim: fill boottime_ns in netlink RX path
Johannes Berg [Mon, 29 Jul 2019 16:06:05 +0000 (18:06 +0200)]
mac80211_hwsim: fill boottime_ns in netlink RX path

Give a proper boottime_ns value for netlink RX to avoid scan
issues here.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Link: https://lore.kernel.org/r/20190729160605.1074-1-johannes@sipsolutions.net
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
4 years agomac80211: add missing null return check from call to ieee80211_get_sband
Colin Ian King [Tue, 30 Jul 2019 14:32:05 +0000 (15:32 +0100)]
mac80211: add missing null return check from call to ieee80211_get_sband

The return from ieee80211_get_sband can potentially be a null pointer, so
it seems prudent to add a null check to avoid a null pointer dereference
on sband.

Addresses-Coverity: ("Dereference null return")
Fixes: 2ab45876756f ("mac80211: add support for the ADDBA extension element")
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Link: https://lore.kernel.org/r/20190730143205.14261-1-colin.king@canonical.com
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
4 years agoMerge branch 'net-dsa-ksz-Add-Microchip-KSZ87xx-support'
David S. Miller [Tue, 30 Jul 2019 22:12:50 +0000 (15:12 -0700)]
Merge branch 'net-dsa-ksz-Add-Microchip-KSZ87xx-support'

Marek Vasut says:

====================
net: dsa: ksz: Add Microchip KSZ87xx support

This series adds support for Microchip KSZ87xx switches, which are
slightly simpler compared to KSZ9xxx .
====================

Signed-off-by: Marek Vasut <marex@denx.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
4 years agonet: dsa: ksz: Add Microchip KSZ8795 DSA driver
Tristram Ha [Mon, 29 Jul 2019 17:49:47 +0000 (19:49 +0200)]
net: dsa: ksz: Add Microchip KSZ8795 DSA driver

Add Microchip KSZ8795 DSA driver.

Signed-off-by: Tristram Ha <Tristram.Ha@microchip.com>
Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Andrew Lunn <andrew@lunn.ch>
Cc: David S. Miller <davem@davemloft.net>
Cc: Florian Fainelli <f.fainelli@gmail.com>
Cc: Tristram Ha <Tristram.Ha@microchip.com>
Cc: Vivien Didelot <vivien.didelot@gmail.com>
Cc: Woojung Huh <woojung.huh@microchip.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
4 years agonet: dsa: ksz: Add KSZ8795 tag code
Tristram Ha [Mon, 29 Jul 2019 17:49:46 +0000 (19:49 +0200)]
net: dsa: ksz: Add KSZ8795 tag code

Add DSA tag code for Microchip KSZ8795 switch. The switch is simpler
and the tag is only 1 byte, instead of 2 as is the case with KSZ9477.

Signed-off-by: Tristram Ha <Tristram.Ha@microchip.com>
Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Andrew Lunn <andrew@lunn.ch>
Cc: David S. Miller <davem@davemloft.net>
Cc: Florian Fainelli <f.fainelli@gmail.com>
Cc: Tristram Ha <Tristram.Ha@microchip.com>
Cc: Vivien Didelot <vivien.didelot@gmail.com>
Cc: Woojung Huh <woojung.huh@microchip.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
4 years agodt-bindings: net: dsa: ksz: document Microchip KSZ87xx family switches
Marek Vasut [Mon, 29 Jul 2019 17:49:45 +0000 (19:49 +0200)]
dt-bindings: net: dsa: ksz: document Microchip KSZ87xx family switches

Document Microchip KSZ87xx family switches. These include
KSZ8765 - 5 port switch
KSZ8794 - 4 port switch
KSZ8795 - 5 port switch

Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Andrew Lunn <andrew@lunn.ch>
Cc: David S. Miller <davem@davemloft.net>
Cc: Florian Fainelli <f.fainelli@gmail.com>
Cc: Rob Herring <robh+dt@kernel.org>
Cc: Tristram Ha <Tristram.Ha@microchip.com>
Cc: Vivien Didelot <vivien.didelot@gmail.com>
Cc: Woojung Huh <woojung.huh@microchip.com>
Cc: devicetree@vger.kernel.org
Signed-off-by: David S. Miller <davem@davemloft.net>
4 years agoMerge branch 'vsock-virtio-optimizations-to-increase-the-throughput'
David S. Miller [Tue, 30 Jul 2019 22:00:00 +0000 (15:00 -0700)]
Merge branch 'vsock-virtio-optimizations-to-increase-the-throughput'

Stefano Garzarella says:

====================
vsock/virtio: optimizations to increase the throughput

This series tries to increase the throughput of virtio-vsock with slight
changes.
While I was testing the v2 of this series I discovered an huge use of memory,
so I added patch 1 to mitigate this issue. I put it in this series in order
to better track the performance trends.

v5:
- rebased all patches on net-next
- added Stefan's R-b and Michael's A-b

v4: https://patchwork.kernel.org/cover/11047717
v3: https://patchwork.kernel.org/cover/10970145
v2: https://patchwork.kernel.org/cover/10938743
v1: https://patchwork.kernel.org/cover/10885431

Below are the benchmarks step by step. I used iperf3 [1] modified with VSOCK
support. As Michael suggested in the v1, I booted host and guest with 'nosmap'.

A brief description of patches:
- Patches 1:   limit the memory usage with an extra copy for small packets
- Patches 2+3: reduce the number of credit update messages sent to the
               transmitter
- Patches 4+5: allow the host to split packets on multiple buffers and use
               VIRTIO_VSOCK_MAX_PKT_BUF_SIZE as the max packet size allowed

                    host -> guest [Gbps]
pkt_size before opt   p 1     p 2+3    p 4+5

32         0.032     0.030    0.048    0.051
64         0.061     0.059    0.108    0.117
128        0.122     0.112    0.227    0.234
256        0.244     0.241    0.418    0.415
512        0.459     0.466    0.847    0.865
1K         0.927     0.919    1.657    1.641
2K         1.884     1.813    3.262    3.269
4K         3.378     3.326    6.044    6.195
8K         5.637     5.676   10.141   11.287
16K        8.250     8.402   15.976   16.736
32K       13.327    13.204   19.013   20.515
64K       21.241    21.341   20.973   21.879
128K      21.851    22.354   21.816   23.203
256K      21.408    21.693   21.846   24.088
512K      21.600    21.899   21.921   24.106

                    guest -> host [Gbps]
pkt_size before opt   p 1     p 2+3    p 4+5

32         0.045     0.046    0.057    0.057
64         0.089     0.091    0.103    0.104
128        0.170     0.179    0.192    0.200
256        0.364     0.351    0.361    0.379
512        0.709     0.699    0.731    0.790
1K         1.399     1.407    1.395    1.427
2K         2.670     2.684    2.745    2.835
4K         5.171     5.199    5.305    5.451
8K         8.442     8.500   10.083    9.941
16K       12.305    12.259   13.519   15.385
32K       11.418    11.150   11.988   24.680
64K       10.778    10.659   11.589   35.273
128K      10.421    10.339   10.939   40.338
256K      10.300     9.719   10.508   36.562
512K       9.833     9.808   10.612   35.979

As Stefan suggested in the v1, I measured also the efficiency in this way:
    efficiency = Mbps / (%CPU_Host + %CPU_Guest)

The '%CPU_Guest' is taken inside the VM. I know that it is not the best way,
but it's provided for free from iperf3 and could be an indication.

        host -> guest efficiency [Mbps / (%CPU_Host + %CPU_Guest)]
pkt_size before opt   p 1     p 2+3    p 4+5

32         0.35      0.45     0.79     1.02
64         0.56      0.80     1.41     1.54
128        1.11      1.52     3.03     3.12
256        2.20      2.16     5.44     5.58
512        4.17      4.18    10.96    11.46
1K         8.30      8.26    20.99    20.89
2K        16.82     16.31    39.76    39.73
4K        30.89     30.79    74.07    75.73
8K        53.74     54.49   124.24   148.91
16K       80.68     83.63   200.21   232.79
32K      132.27    132.52   260.81   357.07
64K      229.82    230.40   300.19   444.18
128K     332.60    329.78   331.51   492.28
256K     331.06    337.22   339.59   511.59
512K     335.58    328.50   331.56   504.56

        guest -> host efficiency [Mbps / (%CPU_Host + %CPU_Guest)]
pkt_size before opt   p 1     p 2+3    p 4+5

32         0.43      0.43     0.53     0.56
64         0.85      0.86     1.04     1.10
128        1.63      1.71     2.07     2.13
256        3.48      3.35     4.02     4.22
512        6.80      6.67     7.97     8.63
1K        13.32     13.31    15.72    15.94
2K        25.79     25.92    30.84    30.98
4K        50.37     50.48    58.79    59.69
8K        95.90     96.15   107.04   110.33
16K      145.80    145.43   143.97   174.70
32K      147.06    144.74   146.02   282.48
64K      145.25    143.99   141.62   406.40
128K     149.34    146.96   147.49   489.34
256K     156.35    149.81   152.21   536.37
512K     151.65    150.74   151.52   519.93

[1] https://github.com/stefano-garzarella/iperf/
====================

Acked-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
4 years agovsock/virtio: change the maximum packet size allowed
Stefano Garzarella [Tue, 30 Jul 2019 15:43:34 +0000 (17:43 +0200)]
vsock/virtio: change the maximum packet size allowed

Since now we are able to split packets, we can avoid limiting
their sizes to VIRTIO_VSOCK_DEFAULT_RX_BUF_SIZE.
Instead, we can use VIRTIO_VSOCK_MAX_PKT_BUF_SIZE as the max
packet size.

Signed-off-by: Stefano Garzarella <sgarzare@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
4 years agovhost/vsock: split packets to send using multiple buffers
Stefano Garzarella [Tue, 30 Jul 2019 15:43:33 +0000 (17:43 +0200)]
vhost/vsock: split packets to send using multiple buffers

If the packets to sent to the guest are bigger than the buffer
available, we can split them, using multiple buffers and fixing
the length in the packet header.
This is safe since virtio-vsock supports only stream sockets.

Signed-off-by: Stefano Garzarella <sgarzare@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
4 years agovsock/virtio: fix locking in virtio_transport_inc_tx_pkt()
Stefano Garzarella [Tue, 30 Jul 2019 15:43:32 +0000 (17:43 +0200)]
vsock/virtio: fix locking in virtio_transport_inc_tx_pkt()

fwd_cnt and last_fwd_cnt are protected by rx_lock, so we should use
the same spinlock also if we are in the TX path.

Move also buf_alloc under the same lock.

Signed-off-by: Stefano Garzarella <sgarzare@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
4 years agovsock/virtio: reduce credit update messages
Stefano Garzarella [Tue, 30 Jul 2019 15:43:31 +0000 (17:43 +0200)]
vsock/virtio: reduce credit update messages

In order to reduce the number of credit update messages,
we send them only when the space available seen by the
transmitter is less than VIRTIO_VSOCK_MAX_PKT_BUF_SIZE.

Signed-off-by: Stefano Garzarella <sgarzare@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
4 years agovsock/virtio: limit the memory used per-socket
Stefano Garzarella [Tue, 30 Jul 2019 15:43:30 +0000 (17:43 +0200)]
vsock/virtio: limit the memory used per-socket

Since virtio-vsock was introduced, the buffers filled by the host
and pushed to the guest using the vring, are directly queued in
a per-socket list. These buffers are preallocated by the guest
with a fixed size (4 KB).

The maximum amount of memory used by each socket should be
controlled by the credit mechanism.
The default credit available per-socket is 256 KB, but if we use
only 1 byte per packet, the guest can queue up to 262144 of 4 KB
buffers, using up to 1 GB of memory per-socket. In addition, the
guest will continue to fill the vring with new 4 KB free buffers
to avoid starvation of other sockets.

This patch mitigates this issue copying the payload of small
packets (< 128 bytes) into the buffer of last packet queued, in
order to avoid wasting memory.

Signed-off-by: Stefano Garzarella <sgarzare@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
4 years agonet: Remove dev_err() usage after platform_get_irq()
Stephen Boyd [Tue, 30 Jul 2019 18:15:51 +0000 (11:15 -0700)]
net: Remove dev_err() usage after platform_get_irq()

We don't need dev_err() messages when platform_get_irq() fails now that
platform_get_irq() prints an error message itself when something goes
wrong. Let's remove these prints with a simple semantic patch.

// <smpl>
@@
expression ret;
struct platform_device *E;
@@

ret =
(
platform_get_irq(E, ...)
|
platform_get_irq_byname(E, ...)
);

if ( \( ret < 0 \| ret <= 0 \) )
{
(
-if (ret != -EPROBE_DEFER)
-{ ...
-dev_err(...);
-... }
|
...
-dev_err(...);
)
...
}
// </smpl>

While we're here, remove braces on if statements that only have one
statement (manually).

Cc: "David S. Miller" <davem@davemloft.net>
Cc: Kalle Valo <kvalo@codeaurora.org>
Cc: Saeed Mahameed <saeedm@mellanox.com>
Cc: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Cc: Felix Fietkau <nbd@nbd.name>
Cc: Lorenzo Bianconi <lorenzo@kernel.org>
Cc: netdev@vger.kernel.org
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Stephen Boyd <swboyd@chromium.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
4 years agoMerge branch 'Finish-conversion-of-skb_frag_t-to-bio_vec'
David S. Miller [Tue, 30 Jul 2019 21:21:32 +0000 (14:21 -0700)]
Merge branch 'Finish-conversion-of-skb_frag_t-to-bio_vec'

Jonathan Lemon says:

====================
Finish conversion of skb_frag_t to bio_vec

The recent conversion of skb_frag_t to bio_vec did not include
skb_frag's page_offset.  Add accessor functions for this field,
utilize them, and remove the union, restoring the original structure.

v2:
  - rename accessors
  - follow kdoc conventions
====================

Reviewed-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Reviewed-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: David S. Miller <davem@davemloft.net>
4 years agolinux: Remove bvec page_offset, use bv_offset
Jonathan Lemon [Tue, 30 Jul 2019 14:40:34 +0000 (07:40 -0700)]
linux: Remove bvec page_offset, use bv_offset

Now that page_offset is referenced through accessors, remove
the union, and use bv_offset.

Signed-off-by: Jonathan Lemon <jonathan.lemon@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
4 years agonet: Use skb_frag_off accessors
Jonathan Lemon [Tue, 30 Jul 2019 14:40:33 +0000 (07:40 -0700)]
net: Use skb_frag_off accessors

Use accessor functions for skb fragment's page_offset instead
of direct references, in preparation for bvec conversion.

Signed-off-by: Jonathan Lemon <jonathan.lemon@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
4 years agolinux: Add skb_frag_t page_offset accessors
Jonathan Lemon [Tue, 30 Jul 2019 14:40:32 +0000 (07:40 -0700)]
linux: Add skb_frag_t page_offset accessors

Add skb_frag_off(), skb_frag_off_add(), skb_frag_off_set(),
and skb_frag_off_copy() accessors for page_offset.

Signed-off-by: Jonathan Lemon <jonathan.lemon@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
4 years agoMerge branch 'sctp-clean-up-sctp_connect-function'
David S. Miller [Tue, 30 Jul 2019 21:18:14 +0000 (14:18 -0700)]
Merge branch 'sctp-clean-up-sctp_connect-function'

Xin Long says:

====================
sctp: clean up __sctp_connect function

This patchset is to factor out some common code for
sctp_sendmsg_new_asoc() and __sctp_connect() into 2
new functioins.

v1->v2:
  - add the patch 1/5 to avoid a slab-out-of-bounds warning.
  - add some code comment for the check change in patch 2/5.
  - remove unused 'addrcnt' as Marcelo noticed in patch 3/5.
====================

Acked-by: Marcelo Ricardo Leitner <marcelo.leitner@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
4 years agosctp: factor out sctp_connect_add_peer
Xin Long [Tue, 30 Jul 2019 12:38:23 +0000 (20:38 +0800)]
sctp: factor out sctp_connect_add_peer

In this function factored out from sctp_sendmsg_new_asoc() and
__sctp_connect(), it adds a peer with the other addr into the
asoc after this asoc is created with the 1st addr.

Signed-off-by: Xin Long <lucien.xin@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
4 years agosctp: factor out sctp_connect_new_asoc
Xin Long [Tue, 30 Jul 2019 12:38:22 +0000 (20:38 +0800)]
sctp: factor out sctp_connect_new_asoc

In this function factored out from sctp_sendmsg_new_asoc() and
__sctp_connect(), it creates the asoc and adds a peer with the
1st addr.

Signed-off-by: Xin Long <lucien.xin@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
4 years agosctp: clean up __sctp_connect
Xin Long [Tue, 30 Jul 2019 12:38:21 +0000 (20:38 +0800)]
sctp: clean up __sctp_connect

__sctp_connect is doing quit similar things as sctp_sendmsg_new_asoc.
To factor out common functions, this patch is to clean up their code
to make them look more similar:

  1. create the asoc and add a peer with the 1st addr.
  2. add peers with the other addrs into this asoc one by one.

while at it, also remove the unused 'addrcnt'.

Signed-off-by: Xin Long <lucien.xin@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
4 years agosctp: check addr_size with sa_family_t size in __sctp_setsockopt_connectx
Xin Long [Tue, 30 Jul 2019 12:38:20 +0000 (20:38 +0800)]
sctp: check addr_size with sa_family_t size in __sctp_setsockopt_connectx

Now __sctp_connect() is called by __sctp_setsockopt_connectx() and
sctp_inet_connect(), the latter has done addr_size check with size
of sa_family_t.

In the next patch to clean up __sctp_connect(), we will remove
addr_size check with size of sa_family_t from __sctp_connect()
for the 1st address.

So before doing that, __sctp_setsockopt_connectx() should do
this check first, as sctp_inet_connect() does.

Signed-off-by: Xin Long <lucien.xin@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
4 years agosctp: only copy the available addr data in sctp_transport_init
Xin Long [Tue, 30 Jul 2019 12:38:19 +0000 (20:38 +0800)]
sctp: only copy the available addr data in sctp_transport_init

'addr' passed to sctp_transport_init is not always a whole size
of union sctp_addr, like the path:

  sctp_sendmsg() ->
  sctp_sendmsg_new_asoc() ->
  sctp_assoc_add_peer() ->
  sctp_transport_new() -> sctp_transport_init()

In the next patches, we will also pass the address length of data
only to sctp_assoc_add_peer().

So sctp_transport_init() should copy the only available data from
addr to peer->ipaddr, instead of 'peer->ipaddr = *addr' which may
cause slab-out-of-bounds.

Signed-off-by: Xin Long <lucien.xin@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
4 years agorxrpc: Fix -Wframe-larger-than= warnings from on-stack crypto
David Howells [Tue, 30 Jul 2019 14:56:57 +0000 (15:56 +0100)]
rxrpc: Fix -Wframe-larger-than= warnings from on-stack crypto

rxkad sometimes triggers a warning about oversized stack frames when
building with clang for a 32-bit architecture:

net/rxrpc/rxkad.c:243:12: error: stack frame size of 1088 bytes in function 'rxkad_secure_packet' [-Werror,-Wframe-larger-than=]
net/rxrpc/rxkad.c:501:12: error: stack frame size of 1088 bytes in function 'rxkad_verify_packet' [-Werror,-Wframe-larger-than=]

The problem is the combination of SYNC_SKCIPHER_REQUEST_ON_STACK() in
rxkad_verify_packet()/rxkad_secure_packet() with the relatively large
scatterlist in rxkad_verify_packet_1()/rxkad_secure_packet_encrypt().

The warning does not show up when using gcc, which does not inline the
functions as aggressively, but the problem is still the same.

Allocate the cipher buffers from the slab instead, caching the allocated
packet crypto request memory used for DATA packet crypto in the rxrpc_call
struct.

Fixes: 17926a79320a ("[AF_RXRPC]: Provide secure RxRPC sockets for use by userspace and kernel both")
Reported-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: David Howells <dhowells@redhat.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
cc: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
4 years agoMerge branch 'bnxt_en-TPA-57500'
David S. Miller [Mon, 29 Jul 2019 21:19:09 +0000 (14:19 -0700)]
Merge branch 'bnxt_en-TPA-57500'

Michael Chan says:

====================
bnxt_en: Add TPA (GRO_HW and LRO) on 57500 chips.

This patchset adds TPA v2 support on the 57500 chips.  TPA v2 is
different from the legacy TPA scheme on older chips and requires major
refactoring and restructuring of the existing TPA logic.  The main
difference is that the new TPA v2 has on-the-fly aggregation buffer
completions before a TPA packet is completed.  The larger aggregation
ID space also requires a new ID mapping logic to make it more
memory efficient.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
4 years agobnxt_en: Add PCI IDs for 57500 series NPAR devices.
Michael Chan [Mon, 29 Jul 2019 10:10:33 +0000 (06:10 -0400)]
bnxt_en: Add PCI IDs for 57500 series NPAR devices.

Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
4 years agobnxt_en: Support all variants of the 5750X chip family.
Michael Chan [Mon, 29 Jul 2019 10:10:32 +0000 (06:10 -0400)]
bnxt_en: Support all variants of the 5750X chip family.

Define the 57508, 57504, and 57502 chip IDs that are all part of the
BNXT_CHIP_P5 family of chips.

Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
4 years agobnxt_en: Refactor bnxt_init_one() and turn on TPA support on 57500 chips.
Michael Chan [Mon, 29 Jul 2019 10:10:31 +0000 (06:10 -0400)]
bnxt_en: Refactor bnxt_init_one() and turn on TPA support on 57500 chips.

With the new TPA feature in the 57500 chips, we need to discover the
feature first before setting up the netdev features.  Refactor the
the firmware probe and init logic more cleanly into 2 functions and
and make these calls before setting up the netdev features.

Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
4 years agobnxt_en: Support TPA counters on 57500 chips.
Michael Chan [Mon, 29 Jul 2019 10:10:30 +0000 (06:10 -0400)]
bnxt_en: Support TPA counters on 57500 chips.

Support the new expanded TPA v2 counters on 57500 B0 chips for
ethtool -S.

Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
4 years agobnxt_en: Allocate the larger per-ring statistics block for 57500 chips.
Michael Chan [Mon, 29 Jul 2019 10:10:29 +0000 (06:10 -0400)]
bnxt_en: Allocate the larger per-ring statistics block for 57500 chips.

The new TPA implemantation has additional TPA counters that extend the
per-ring statistics block.  Allocate the proper size accordingly.

Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
4 years agobnxt_en: Refactor ethtool ring statistics logic.
Michael Chan [Mon, 29 Jul 2019 10:10:28 +0000 (06:10 -0400)]
bnxt_en: Refactor ethtool ring statistics logic.

The current code assumes that the per ring statistics counters are
fixed.  In newer chips that support a newer version of TPA, the
TPA counters are also changed.  Refactor the code by defining these
counter names in arrays so that it is easy to add a new array for
a new set of counters supported by the newer chips.

Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
4 years agobnxt_en: Add hardware GRO setup function for 57500 chips.
Michael Chan [Mon, 29 Jul 2019 10:10:27 +0000 (06:10 -0400)]
bnxt_en: Add hardware GRO setup function for 57500 chips.

Add a more optimized hardware GRO function to setup the SKB on 57500
chips.  Some workaround code is no longer needed on 57500 chips and
the pseudo checksum is also calculated in hardware, so no need to
do the software pseudo checksum in the driver.

Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
4 years agobnxt_en: Add TPA ID mapping logic for 57500 chips.
Michael Chan [Mon, 29 Jul 2019 10:10:26 +0000 (06:10 -0400)]
bnxt_en: Add TPA ID mapping logic for 57500 chips.

The new TPA feature on 57500 supports a larger number of concurrent TPAs
(up to 1024) divided among the functions.  We need to add some logic to
map the hardware TPA ID to a software index that keeps track of each TPA
in progress.  A 1:1 direct mapping without translation would be too
wasteful as we would have to allocate 1024 TPA structures for each RX
ring on each PCI function.

Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
4 years agobnxt_en: Add fast path logic for TPA on 57500 chips.
Michael Chan [Mon, 29 Jul 2019 10:10:25 +0000 (06:10 -0400)]
bnxt_en: Add fast path logic for TPA on 57500 chips.

With all the previous refactoring, the TPA fast path can now be
modified slightly to support TPA on the new chips.  The main
difference is that the agg completions are retrieved differently using
the bnxt_get_tpa_agg_p5() function on the new chips.

Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
4 years agobnxt_en: Set TPA GRO mode flags on 57500 chips properly.
Michael Chan [Mon, 29 Jul 2019 10:10:24 +0000 (06:10 -0400)]
bnxt_en: Set TPA GRO mode flags on 57500 chips properly.

On 57500 chips, hardware GRO mode cannot be determined from the TPA
end, so we need to check bp->flags to determine if we are in hardware
GRO mode or not.  Modify bnxt_set_features so that the TPA flags
in bp->flags don't change until the device is closed.  This will ensure
that the fast path can safely rely on bp->flags to determine the
TPA mode.

Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
4 years agobnxt_en: Refactor tunneled hardware GRO logic.
Michael Chan [Mon, 29 Jul 2019 10:10:23 +0000 (06:10 -0400)]
bnxt_en: Refactor tunneled hardware GRO logic.

The 2 GRO functions to set up the hardware GRO SKB fields for 2
different hardware chips have practically identical logic for
tunneled packets.  Refactor the logic into a separate bnxt_gro_tunnel()
function that can be used by both functions.

Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
4 years agobnxt_en: Handle standalone RX_AGG completions.
Michael Chan [Mon, 29 Jul 2019 10:10:22 +0000 (06:10 -0400)]
bnxt_en: Handle standalone RX_AGG completions.

On the new 57500 chips, these new RX_AGG completions are not coalesced
at the TPA_END completion.  Handle these by storing them in the
array in the bnxt_tpa_info struct, as they are seen when processing
the CMPL ring.

Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
4 years agobnxt_en: Expand bnxt_tpa_info struct to support 57500 chips.
Michael Chan [Mon, 29 Jul 2019 10:10:21 +0000 (06:10 -0400)]
bnxt_en: Expand bnxt_tpa_info struct to support 57500 chips.

Add an aggregation array to bnxt_tpa_info struct to keep track of the
aggregation completions.  The aggregation completions are not
completed at the TPA_END completion on 57500 chips so we need to
keep track of them.  The array is only allocated on the new chips
when required.  An agg_count field is also added to keep track of the
number of these completions.

The maximum concurrent TPA is now discovered from firmware instead of
the hardcoded 64.  Add a new bp->max_tpa to keep track of maximum
configured TPA.

Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
4 years agobnxt_en: Refactor TPA logic.
Michael Chan [Mon, 29 Jul 2019 10:10:20 +0000 (06:10 -0400)]
bnxt_en: Refactor TPA logic.

Refactor the TPA logic slightly, so that the code can be more easily
extended to support TPA on the new 57500 chips.  In particular, the
logic to get the next aggregation completion is refactored into a
new function bnxt_get_agg() so that this operation is made more
generalized.  This operation will be different on the new chip in TPA
mode.  The logic to recycle the aggregation buffers has a new start
index parameter added for the same purpose.

Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
4 years agobnxt_en: Add TPA structure definitions for BCM57500 chips.
Michael Chan [Mon, 29 Jul 2019 10:10:19 +0000 (06:10 -0400)]
bnxt_en: Add TPA structure definitions for BCM57500 chips.

The new chips have a slightly modified TPA interface for LRO/GRO_HW.
Modify the TPA structures so that the same structures can also be
used on the new chips.

Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
4 years agobnxt_en: Update firmware interface spec. to 1.10.0.89.
Michael Chan [Mon, 29 Jul 2019 10:10:18 +0000 (06:10 -0400)]
bnxt_en: Update firmware interface spec. to 1.10.0.89.

Among the changes are new CoS discard counters and new ctx_hw_stats_ext
struct for the latest 5750X B0 chips.

Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
4 years agocan: fix ioctl function removal
Oliver Hartkopp [Mon, 29 Jul 2019 20:40:56 +0000 (22:40 +0200)]
can: fix ioctl function removal

Commit 60649d4e0af ("can: remove obsolete empty ioctl() handler") replaced the
almost empty can_ioctl() function with sock_no_ioctl() which always returns
-EOPNOTSUPP.

Even though we don't have any ioctl() functions on socket/network layer we need
to return -ENOIOCTLCMD to be able to forward ioctl commands like SIOCGIFINDEX
to the network driver layer.

This patch fixes the wrong return codes in the CAN network layer protocols.

Reported-by: kernel test robot <rong.a.chen@intel.com>
Fixes: 60649d4e0af ("can: remove obsolete empty ioctl() handler")
Signed-off-by: Oliver Hartkopp <socketcan@hartkopp.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
4 years agonet: dsa: mv88e6xxx: avoid some redundant vtu load/purge operations
Rasmus Villemoes [Mon, 22 Jul 2019 23:37:26 +0000 (23:37 +0000)]
net: dsa: mv88e6xxx: avoid some redundant vtu load/purge operations

We have an ERPS (Ethernet Ring Protection Switching) setup involving
mv88e6250 switches which we're in the process of switching to a BSP
based on the mainline driver. Breaking any link in the ring works as
expected, with the ring reconfiguring itself quickly and traffic
continuing with almost no noticable drops. However, when plugging back
the cable, we see 5+ second stalls.

This has been tracked down to the userspace application in charge of
the protocol missing a few CCM messages on the good link (the one that
was not unplugged), causing it to broadcast a "signal fail". That
message eventually reaches its link partner, which responds by
blocking the port. Meanwhile, the first node has continued to block
the port with the just plugged-in cable, breaking the network. And the
reason for those missing CCM messages has in turn been tracked down to
the VTU apparently being too busy servicing load/purge operations that
the normal lookups are delayed.

Initial state, the link between C and D is blocked in software.

     _____________________
    /                     \
   |                       |
   A ----- B ----- C *---- D

Unplug the cable between C and D.

     _____________________
    /                     \
   |                       |
   A ----- B ----- C *   * D

Reestablish the link between C and D.
     _____________________
    /                     \
   |                       |
   A ----- B ----- C *---- D

Somehow, enough VTU/ATU operations happen inside C that prevents
the application from receving the CCM messages from B in a timely
manner, so a Signal Fail message is sent by C. When B receives
that, it responds by blocking its port.

     _____________________
    /                     \
   |                       |
   A ----- B *---* C *---- D

Very shortly after this, the signal fail condition clears on the
BC link (some CCM messages finally make it through), so C
unblocks the port. However, a guard timer inside B prevents it
from removing the blocking before 5 seconds have elapsed.

It is not unlikely that our userspace ERPS implementation could be
smarter and/or is simply buggy. However, this patch fixes the symptoms
we see, and is a small optimization that should not break anything
(knock wood). The idea is simply to avoid doing an VTU load of an
entry identical to the one already present. To do that, we need to
know whether mv88e6xxx_vtu_get() actually found an existing entry, or
has just prepared a struct mv88e6xxx_vtu_entry for us to load. To that
end, let vlan->valid be an output parameter. The other two callers of
mv88e6xxx_vtu_get() are not affected by this patch since they pass
new=false.

Signed-off-by: Rasmus Villemoes <rasmus.villemoes@prevas.dk>
Signed-off-by: David S. Miller <davem@davemloft.net>
4 years agor8169: make use of xmit_more
Heiner Kallweit [Sun, 28 Jul 2019 09:25:19 +0000 (11:25 +0200)]
r8169: make use of xmit_more

There was a previous attempt to use xmit_more, but the change had to be
reverted because under load sometimes a transmit timeout occurred [0].
Maybe this was caused by a missing memory barrier, the new attempt
keeps the memory barrier before the call to netif_stop_queue like it
is used by the driver as of today. The new attempt also changes the
order of some calls as suggested by Eric.

[0] https://lkml.org/lkml/2019/2/10/39

Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
4 years agostaging/octeon: Allow test build on !MIPS
Matthew Wilcox (Oracle) [Fri, 26 Jul 2019 17:44:25 +0000 (10:44 -0700)]
staging/octeon: Allow test build on !MIPS

Add compile test support by moving all includes of files under
asm/octeon into octeon-ethernet.h, and if we're not on MIPS,
stub out all the calls into the octeon support code in octeon-stubs.h

Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
4 years agonet: ag71xx: use resource_size for the ioremap size
Ding Xiang [Mon, 29 Jul 2019 09:01:22 +0000 (17:01 +0800)]
net: ag71xx: use resource_size for the ioremap size

use resource_size to calcuate ioremap size and make
the code simpler.

Signed-off-by: Ding Xiang <dingxiang@cmss.chinamobile.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
4 years agoMerge branch 'nfc-next'
David S. Miller [Mon, 29 Jul 2019 15:56:27 +0000 (08:56 -0700)]
Merge branch 'nfc-next'

Andy Shevchenko says:

====================
NFC: nxp-nci: clean up and new device support

Few people reported that some laptops are coming with new ACPI ID for the
devices should be supported by nxp-nci driver.

This series adds new ID (patch 2), cleans up the driver from legacy platform
data and unifies GPIO request for Device Tree and ACPI (patches 3-6), removes
dead or unneeded code (patches 7, 9, 11), constifies ID table (patch 8),
removes comma in terminator line for better maintenance (patch 10) and
rectifies Kconfig entry (patches 12-14).

It also contains a fix for NFC subsystem as suggested by Sedat.

Series has been tested by Sedat.

Changelog v4:
- rebased on top of latest linux-next
- appended cover letter
- elaborated removal of pr_fmt() in the patch 11 (David)
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
4 years agoNFC: nxp-nci: Fix recommendation for NFC_NXP_NCI_I2C Kconfig
Sedat Dilek [Mon, 29 Jul 2019 13:35:14 +0000 (16:35 +0300)]
NFC: nxp-nci: Fix recommendation for NFC_NXP_NCI_I2C Kconfig

This is a simple cleanup to the Kconfig help text as discussed in [1].

[1] https://marc.info/?t=155774435600001&r=1&w=2

Suggested-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Suggested-by: Oleg Zhurakivskyy <oleg.zhurakivskyy@intel.com>
Signed-off-by: Sedat Dilek <sedat.dilek@credativ.de>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
4 years agoNFC: nxp-nci: Clarify on supported chips
Sedat Dilek [Mon, 29 Jul 2019 13:35:13 +0000 (16:35 +0300)]
NFC: nxp-nci: Clarify on supported chips

This patch clarifies on the supported NXP NCI chips and families
and lists PN547 and PN548 separately which are known as NPC100
respectively NPC300.

This helps to find informations and identify drivers on vendor's
support websites.

For details see the discussion in [1] and [2].

[1] https://marc.info/?t=155774435600001&r=1&w=2
[2] https://patchwork.kernel.org/project/linux-wireless/list/?submitter=33142

Suggested-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Suggested-by: Oleg Zhurakivskyy <oleg.zhurakivskyy@intel.com>
Signed-off-by: Sedat Dilek <sedat.dilek@credativ.de>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Acked-by: Oleg Zhurakivskyy <oleg.zhurakivskyy@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
4 years agoNFC: nxp-nci: Remove 'default n' for the core
Andy Shevchenko [Mon, 29 Jul 2019 13:35:12 +0000 (16:35 +0300)]
NFC: nxp-nci: Remove 'default n' for the core

It seems contributors follow the style of Kconfig entries where explicit
'default n' is present.  The default 'default' is 'n' already, thus, drop
these lines from Kconfig to make it more clear.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Tested-by: Sedat Dilek <sedat.dilek@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
4 years agoNFC: nxp-nci: Remove unused macro pr_fmt()
Andy Shevchenko [Mon, 29 Jul 2019 13:35:11 +0000 (16:35 +0300)]
NFC: nxp-nci: Remove unused macro pr_fmt()

The macro had never been used.

The driver uses mostly the nfc_err(), which, with other macros in the family,
is backed by corresponding dev_err(). pr_fmt() is not used for dev_err()
macro. Moreover, there is no need to print the module name which is part of the
device instance name anyway.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Tested-by: Sedat Dilek <sedat.dilek@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
4 years agoNFC: nxp-nci: Drop comma in terminator lines
Andy Shevchenko [Mon, 29 Jul 2019 13:35:10 +0000 (16:35 +0300)]
NFC: nxp-nci: Drop comma in terminator lines

There is no need to have a comma after terminator entry
in the arrays of IDs.

This may prevent the misguided addition behind the terminator
without compiler notice.

Drop the comma in terminator lines for good.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Tested-by: Sedat Dilek <sedat.dilek@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
4 years agoNFC: nxp-nci: Drop of_match_ptr() use
Andy Shevchenko [Mon, 29 Jul 2019 13:35:09 +0000 (16:35 +0300)]
NFC: nxp-nci: Drop of_match_ptr() use

There is no need to guard OF device ID table with of_match_ptr().
Otherwise we would get a defined but not used data.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Tested-by: Sedat Dilek <sedat.dilek@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
4 years agoNFC: nxp-nci: Constify acpi_device_id
Andy Shevchenko [Mon, 29 Jul 2019 13:35:08 +0000 (16:35 +0300)]
NFC: nxp-nci: Constify acpi_device_id

The content of acpi_device_id is not supposed to change at runtime.
All functions working with acpi_device_id provided by <linux/acpi.h>
work with const acpi_device_id. So mark the non-const structs as const.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Tested-by: Sedat Dilek <sedat.dilek@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
4 years agoNFC: nxp-nci: Get rid of useless label
Andy Shevchenko [Mon, 29 Jul 2019 13:35:07 +0000 (16:35 +0300)]
NFC: nxp-nci: Get rid of useless label

Return directly in ->probe() since there no special cleaning is needed.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Tested-by: Sedat Dilek <sedat.dilek@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
4 years agoNFC: nxp-nci: Get rid of code duplication in ->probe()
Andy Shevchenko [Mon, 29 Jul 2019 13:35:06 +0000 (16:35 +0300)]
NFC: nxp-nci: Get rid of code duplication in ->probe()

Since OF and ACPI case almost the same get rid of code duplication
by moving gpiod_get() calls directly to ->probe().

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Tested-by: Sedat Dilek <sedat.dilek@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
4 years agoNFC: nxp-nci: Add GPIO ACPI mapping table
Andy Shevchenko [Mon, 29 Jul 2019 13:35:05 +0000 (16:35 +0300)]
NFC: nxp-nci: Add GPIO ACPI mapping table

In order to unify GPIO resource request prepare gpiod_get_index()
to behave correctly when there is no mapping provided by firmware.

Here we add explicit mapping between _CRS GpioIo() resources and
their names used in the driver.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Tested-by: Sedat Dilek <sedat.dilek@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
4 years agoNFC: nxp-nci: Convert to use GPIO descriptor
Andy Shevchenko [Mon, 29 Jul 2019 13:35:04 +0000 (16:35 +0300)]
NFC: nxp-nci: Convert to use GPIO descriptor

Since we got rid of platform data, the driver may use
GPIO descriptor directly.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Tested-by: Sedat Dilek <sedat.dilek@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
4 years agoNFC: nxp-nci: Get rid of platform data
Andy Shevchenko [Mon, 29 Jul 2019 13:35:03 +0000 (16:35 +0300)]
NFC: nxp-nci: Get rid of platform data

Legacy platform data must go away. We are on the safe side here since
there are no users of it in the kernel.

If anyone by any odd reason needs it the GPIO lookup tables and
built-in device properties at your service.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Tested-by: Sedat Dilek <sedat.dilek@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
4 years agoNFC: nxp-nci: Add NXP1001 to the ACPI ID table
Andy Shevchenko [Mon, 29 Jul 2019 13:35:02 +0000 (16:35 +0300)]
NFC: nxp-nci: Add NXP1001 to the ACPI ID table

It seems a lot of laptops are equipped with NXP NFC300 chip with
the ACPI ID NXP1001 as per DSDT.

Append it to the driver's ACPI ID table.

Reported-by: Sedat Dilek <sedat.dilek@gmail.com>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Tested-by: Sedat Dilek <sedat.dilek@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
4 years agoNFC: fix attrs checks in netlink interface
Andrey Konovalov [Mon, 29 Jul 2019 13:35:01 +0000 (16:35 +0300)]
NFC: fix attrs checks in netlink interface

nfc_genl_deactivate_target() relies on the NFC_ATTR_TARGET_INDEX
attribute being present, but doesn't check whether it is actually
provided by the user. Same goes for nfc_genl_fw_download() and
NFC_ATTR_FIRMWARE_NAME.

This patch adds appropriate checks.

Found with syzkaller.

Signed-off-by: Andrey Konovalov <andreyknvl@google.com>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
4 years agoMerge branch 'hns3-next'
David S. Miller [Mon, 29 Jul 2019 15:23:41 +0000 (08:23 -0700)]
Merge branch 'hns3-next'

Huazhong Tan says:

====================
net: hns3: some code optimizations & bugfixes & features

This patch-set includes code optimizations, bugfixes and features for
the HNS3 ethernet controller driver.

[patch 1/10] checks reset status before setting channel.

[patch 2/10] adds a NULL pointer checking.

[patch 3/10] removes reset level upgrading when current reset fails.

[patch 4/10] fixes a GFP flags errors when holding spin_lock.

[patch 5/10] modifies firmware version format.

[patch 6/10] adds some print information which is off by default.

[patch 7/10 - 8/10] adds two code optimizations about interrupt handler
and work task.

[patch 9/10] adds support for using order 1 pages with a 4K buffer.

[patch 10/10] modifies messages prints with dev_info() instead of
pr_info().

Change log:
V3->V4: replace netif_info with netif_dbg in [patch 6/10]
V2->V3: fixes comments from Saeed Mahameed and Joe Perches.
V1->V2: fixes comments from Saeed Mahameed and
removes previous [patch 4/11] and [patch 11/11]
which needs further discussion, and adds a new
patch [10/10] suggested by Saeed Mahameed.
====================

Reviewed-by: Saeed Mahameed <saeedm@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
4 years agonet: hns3: use dev_info() instead of pr_info()
Huazhong Tan [Mon, 29 Jul 2019 02:53:31 +0000 (10:53 +0800)]
net: hns3: use dev_info() instead of pr_info()

dev_info() is more appropriate for printing messages when driver
initialization done, so switch to dev_info().

Signed-off-by: Huazhong Tan <tanhuazhong@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
4 years agonet: hns3: Add support for using order 1 pages with a 4K buffer
Yunsheng Lin [Mon, 29 Jul 2019 02:53:30 +0000 (10:53 +0800)]
net: hns3: Add support for using order 1 pages with a 4K buffer

Hardware supports 0.5K, 1K, 2K, 4K RX buffer size, the
RX buffer can not be reused because the hns3_page_order
return 0 when page size and RX buffer size are both 4096.

So this patch changes the hns3_page_order to return 1 when
RX buffer is greater than half of the page size and page size
is less the 8192, and dev_alloc_pages has already been used
to allocate the compound page for RX buffer.

This patch also changes hnae3_* to hns3_* for page order
and RX buffer size calculation because they are used in
hns3 module.

Signed-off-by: Yunsheng Lin <linyunsheng@huawei.com>
Reviewed-by: Peng Li <lipeng321@huawei.com>
Signed-off-by: Huazhong Tan <tanhuazhong@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
4 years agonet: hns3: add interrupt affinity support for misc interrupt
Yunsheng Lin [Mon, 29 Jul 2019 02:53:29 +0000 (10:53 +0800)]
net: hns3: add interrupt affinity support for misc interrupt

The misc interrupt is used to schedule the reset and mailbox
subtask, and service_task delayed_work is used to do periodic
management work each second.

This patch sets the above three subtask's affinity using the
misc interrupt' affinity.

Also this patch setups a affinity notify for misc interrupt to
allow user to change the above three subtask's affinity.

Signed-off-by: Yunsheng Lin <linyunsheng@huawei.com>
Signed-off-by: Peng Li <lipeng321@huawei.com>
Signed-off-by: Huazhong Tan <tanhuazhong@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
4 years agonet: hns3: make hclge_service use delayed workqueue
Yunsheng Lin [Mon, 29 Jul 2019 02:53:28 +0000 (10:53 +0800)]
net: hns3: make hclge_service use delayed workqueue

Use delayed work instead of using timers to trigger the
hclge_serive.

Simplify the code with one less middle function and in order
to support misc irq affinity.

Signed-off-by: Yunsheng Lin <linyunsheng@huawei.com>
Reviewed-by: Peng Li <lipeng321@huawei.com>
Signed-off-by: Huazhong Tan <tanhuazhong@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
4 years agonet: hns3: add debug messages to identify eth down cause
Yonglong Liu [Mon, 29 Jul 2019 02:53:27 +0000 (10:53 +0800)]
net: hns3: add debug messages to identify eth down cause

Some times just see the eth interface have been down/up via
dmesg, but can not know why the eth down. So adds some debug
messages to identify the cause for this.

Signed-off-by: Yonglong Liu <liuyonglong@huawei.com>
Signed-off-by: Peng Li <lipeng321@huawei.com>
Signed-off-by: Huazhong Tan <tanhuazhong@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
4 years agonet: hns3: modify firmware version display format
Yufeng Mo [Mon, 29 Jul 2019 02:53:26 +0000 (10:53 +0800)]
net: hns3: modify firmware version display format

This patch modifies firmware version display format in
hclge(vf)_cmd_init() and hns3_get_drvinfo(). Also, adds
some optimizations for firmware version display format.

Signed-off-by: Yufeng Mo <moyufeng@huawei.com>
Signed-off-by: Peng Li <lipeng321@huawei.com>
Signed-off-by: Huazhong Tan <tanhuazhong@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
4 years agonet: hns3: change GFP flag during lock period
Yufeng Mo [Mon, 29 Jul 2019 02:53:25 +0000 (10:53 +0800)]
net: hns3: change GFP flag during lock period

When allocating memory, the GFP_KERNEL cannot be used during the
spin_lock period. This is because it may cause scheduling when holding
spin_lock. This patch changes GFP flag to GFP_ATOMIC in this case.

Fixes: dd74f815dd41 ("net: hns3: Add support for rule add/delete for flow director")
Signed-off-by: Yufeng Mo <moyufeng@huawei.com>
Signed-off-by: lipeng 00277521 <lipeng321@huawei.com>
Signed-off-by: Huazhong Tan <tanhuazhong@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
4 years agonet: hns3: remove upgrade reset level when reset fail
Huazhong Tan [Mon, 29 Jul 2019 02:53:24 +0000 (10:53 +0800)]
net: hns3: remove upgrade reset level when reset fail

Currently, hclge_reset_err_handle() will assert a global reset
when the failing count is smaller than MAX_RESET_FAIL_CNT, which
will affect other running functions.

So this patch removes this upgrading, and uses re-scheduling reset
task to do it.

Signed-off-by: Huazhong Tan <tanhuazhong@huawei.com>
Reviewed-by: Yunsheng Lin <linyunsheng@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
4 years agonet: hns3: add a check for get_reset_level
Guangbin Huang [Mon, 29 Jul 2019 02:53:23 +0000 (10:53 +0800)]
net: hns3: add a check for get_reset_level

For some cases, ops->get_reset_level may not be implemented, so we
should check whether it is NULL before calling get_reset_level.

Signed-off-by: Guangbin Huang <huangguangbin@huawei.com>
Signed-off-by: Huazhong Tan <tanhuazhong@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
4 years agonet: hns3: add reset checking before set channels
Jian Shen [Mon, 29 Jul 2019 02:53:22 +0000 (10:53 +0800)]
net: hns3: add reset checking before set channels

hns3_set_channels() should check the resetting status firstly,
since the device will reinitialize when resetting. If the
reset has not completed, the hns3_set_channels() may access
invalid memory.

Signed-off-by: Jian Shen <shenjian15@huawei.com>
Signed-off-by: Huazhong Tan <tanhuazhong@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
4 years agomac80211: add support for the ADDBA extension element
John Crispin [Mon, 29 Jul 2019 10:45:12 +0000 (12:45 +0200)]
mac80211: add support for the ADDBA extension element

HE allows peers to negotiate the aggregation fragmentation level to be used
during transmission. The level can be 1-3. The Ext element is added behind
the ADDBA request inside the action frame. The responder will then reply
with the same level or a lower one if the requested one is not supported.
This patch only handles the negotiation part as the ADDBA frames get passed
to the ATH11k firmware, which does the rest of the magic for us aswell as
generating the requests.

Signed-off-by: Shashidhar Lakkavalli <slakkavalli@datto.com>
Signed-off-by: John Crispin <john@phrozen.org>
Link: https://lore.kernel.org/r/20190729104512.27615-1-john@phrozen.org
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
4 years agomac80211: propagate HE operation info into bss_conf
John Crispin [Mon, 29 Jul 2019 10:23:42 +0000 (12:23 +0200)]
mac80211: propagate HE operation info into bss_conf

Upon a successful assoc a station shall store the content of the HE
operation element inside bss_conf so that the driver can setup the
hardware accordingly.

Signed-off-by: Shashidhar Lakkavalli <slakkavalli@datto.com>
Signed-off-by: John Crispin <john@phrozen.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20190729102342.8659-2-john@phrozen.org
[use struct copy]
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
4 years agomac80211: fix ieee80211_he_oper_size() comment
John Crispin [Mon, 29 Jul 2019 10:23:41 +0000 (12:23 +0200)]
mac80211: fix ieee80211_he_oper_size() comment

Johannes mentioned that the comment should not reference mac80211 as other
subsystems might call the helper.

Signed-off-by: John Crispin <john@phrozen.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20190729102342.8659-1-john@phrozen.org
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
4 years agocfg80211: fix dfs channels remain DFS_AVAILABLE after ch_switch
Michael Vassernis [Mon, 29 Jul 2019 06:01:16 +0000 (06:01 +0000)]
cfg80211: fix dfs channels remain DFS_AVAILABLE after ch_switch

Depending on the regulatory domain, leaving a DFS channel requires
a new CAC to be performed when returning back to that channel.
If needed, update dfs states after a driver channel switch.

Signed-off-by: Michael Vassernis <michael.vassernis@tandemg.com>
Link: https://lore.kernel.org/r/20190729060024.5660-1-michael.vassernis@tandemg.com
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
4 years agocfg80211: fix duplicated scan entries after channel switch
Sergey Matyukevich [Fri, 26 Jul 2019 16:39:34 +0000 (16:39 +0000)]
cfg80211: fix duplicated scan entries after channel switch

When associated BSS completes channel switch procedure, its channel
record needs to be updated. The existing mac80211 solution was
extended to cfg80211 in commit 5dc8cdce1d72 ("mac80211/cfg80211:
update bss channel on channel switch").

However that solution still appears to be incomplete as it may lead
to duplicated scan entries for associated BSS after channel switch.
The root cause of the problem is as follows. Each BSS entry is
included into the following data structures:
- bss list rdev->bss_list
- bss search tree rdev->bss_tree
Updating BSS channel record without rebuilding bss_tree may break
tree search since cmp_bss considers all of the following: channel,
bssid, ssid. When BSS channel is updated, but its location in bss_tree
is not updated, then subsequent search operations may fail to locate
this BSS since they will be traversing bss_tree in wrong direction.
As a result, for scan performed after associated BSS channel switch,
cfg80211_bss_update may add the second entry for the same BSS to both
bss_list and bss_tree, rather then update the existing one.

To summarize, if BSS channel needs to be updated, then bss_tree should
be rebuilt in order to put updated BSS entry into a proper location.

This commit suggests the following straightforward solution:
- if new entry has been already created for BSS after channel switch,
  then use its IEs to update known BSS entry and then remove new
  entry completely
- use rb_erase/rb_insert_bss reinstall updated BSS in bss_tree
- for nontransmit BSS entry, the whole transmit BSS hierarchy
  is updated

Signed-off-by: Sergey Matyukevich <sergey.matyukevich.os@quantenna.com>
Link: https://lore.kernel.org/r/20190726163922.27509-3-sergey.matyukevich.os@quantenna.com
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
4 years agocfg80211: refactor cfg80211_bss_update
Sergey Matyukevich [Fri, 26 Jul 2019 16:39:32 +0000 (16:39 +0000)]
cfg80211: refactor cfg80211_bss_update

This patch implements minor refactoring for cfg80211_bss_update function.
Code path for updating known BSS is extracted into dedicated
cfg80211_update_known_bss function.

Signed-off-by: Sergey Matyukevich <sergey.matyukevich.os@quantenna.com>
Link: https://lore.kernel.org/r/20190726163922.27509-2-sergey.matyukevich.os@quantenna.com
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
4 years agoMerge branch 'mlxsw-spectrum_acl-Forbid-unsupported-filters'
David S. Miller [Sat, 27 Jul 2019 21:32:31 +0000 (14:32 -0700)]
Merge branch 'mlxsw-spectrum_acl-Forbid-unsupported-filters'

Ido Schimmel says:

====================
mlxsw: spectrum_acl: Forbid unsupported filters

Patches #1-#2 make mlxsw reject unsupported egress filters. These
include filters that match on VLAN and filters associated with a
redirect action. Patch #1 rejects such filters when they are configured
on egress and patch #2 rejects such filters when they are configured in
a shared block that user tries to bind to egress.

Patch #3 forbids matching on reserved TCP flags as this is not supported
by the current keys that mlxsw uses.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
4 years agomlxsw: spectrum_flower: Forbid to offload match on reserved TCP flags bits
Jiri Pirko [Sat, 27 Jul 2019 17:32:57 +0000 (20:32 +0300)]
mlxsw: spectrum_flower: Forbid to offload match on reserved TCP flags bits

Matching on reserved TCP flags bits is only supported using custom
parser. Since the usecase for that is not known now, just forbid to
offload rules that match on these bits.

Reported-by: Alex Kushnarov <alexanderk@mellanox.com>
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>
4 years agomlxsw: spectrum_acl: Track rules that forbid egress block bind
Jiri Pirko [Sat, 27 Jul 2019 17:32:56 +0000 (20:32 +0300)]
mlxsw: spectrum_acl: Track rules that forbid egress block bind

Some matches and actions are not supported on egress. Track such rules
and forbid a bind of block which contains them to egress.

With this patch, the kernel tells the user he cannot do that:
$ tc qdisc add dev ens16np1 ingress_block 22 clsact
$ tc filter add block 22 protocol 802.1q pref 2 handle 101 flower vlan_id 100 skip_sw action pass
$ tc qdisc add dev ens16np2 egress_block 22 clsact
Error: mlxsw_spectrum: Block cannot be bound to egress because it contains unsupported rules.

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>
4 years agomlxsw: spectrum_flower: Forbid to offload mirred redirect on egress
Jiri Pirko [Sat, 27 Jul 2019 17:32:55 +0000 (20:32 +0300)]
mlxsw: spectrum_flower: Forbid to offload mirred redirect on egress

Spectrum ASIC does not support redirection on egress, so refuse to
insert such flows:

$ tc qdisc add dev ens16np1 clsact
$ tc filter add dev ens16np1 egress protocol all pref 1 handle 101 flower skip_sw action mirred egress redirect dev ens16np2
Error: mlxsw_spectrum: Redirect action is not supported on egress.

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>
4 years agoMerge branch 'r8169-improve-HW-csum-and-TSO-handling'
David S. Miller [Sat, 27 Jul 2019 21:25:07 +0000 (14:25 -0700)]
Merge branch 'r8169-improve-HW-csum-and-TSO-handling'

Heiner Kallweit says:

====================
r8169: improve HW csum and TSO handling

This series:
- delegates more tasks from the driver to the core
- enables HW csum and TSO per default
- copies quirks for buggy chip versions from vendor driver
====================

Signed-off-by: David S. Miller <davem@davemloft.net>