platform/kernel/linux-rpi.git
5 years agoinetpeer: fix data-race in inet_putpeer / inet_putpeer
Eric Dumazet [Thu, 7 Nov 2019 18:30:42 +0000 (10:30 -0800)]
inetpeer: fix data-race in inet_putpeer / inet_putpeer

We need to explicitely forbid read/store tearing in inet_peer_gc()
and inet_putpeer().

The following syzbot report reminds us about inet_putpeer()
running without a lock held.

BUG: KCSAN: data-race in inet_putpeer / inet_putpeer

write to 0xffff888121fb2ed0 of 4 bytes by interrupt on cpu 0:
 inet_putpeer+0x37/0xa0 net/ipv4/inetpeer.c:240
 ip4_frag_free+0x3d/0x50 net/ipv4/ip_fragment.c:102
 inet_frag_destroy_rcu+0x58/0x80 net/ipv4/inet_fragment.c:228
 __rcu_reclaim kernel/rcu/rcu.h:222 [inline]
 rcu_do_batch+0x256/0x5b0 kernel/rcu/tree.c:2157
 rcu_core+0x369/0x4d0 kernel/rcu/tree.c:2377
 rcu_core_si+0x12/0x20 kernel/rcu/tree.c:2386
 __do_softirq+0x115/0x33f kernel/softirq.c:292
 invoke_softirq kernel/softirq.c:373 [inline]
 irq_exit+0xbb/0xe0 kernel/softirq.c:413
 exiting_irq arch/x86/include/asm/apic.h:536 [inline]
 smp_apic_timer_interrupt+0xe6/0x280 arch/x86/kernel/apic/apic.c:1137
 apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:830
 native_safe_halt+0xe/0x10 arch/x86/kernel/paravirt.c:71
 arch_cpu_idle+0x1f/0x30 arch/x86/kernel/process.c:571
 default_idle_call+0x1e/0x40 kernel/sched/idle.c:94
 cpuidle_idle_call kernel/sched/idle.c:154 [inline]
 do_idle+0x1af/0x280 kernel/sched/idle.c:263

write to 0xffff888121fb2ed0 of 4 bytes by interrupt on cpu 1:
 inet_putpeer+0x37/0xa0 net/ipv4/inetpeer.c:240
 ip4_frag_free+0x3d/0x50 net/ipv4/ip_fragment.c:102
 inet_frag_destroy_rcu+0x58/0x80 net/ipv4/inet_fragment.c:228
 __rcu_reclaim kernel/rcu/rcu.h:222 [inline]
 rcu_do_batch+0x256/0x5b0 kernel/rcu/tree.c:2157
 rcu_core+0x369/0x4d0 kernel/rcu/tree.c:2377
 rcu_core_si+0x12/0x20 kernel/rcu/tree.c:2386
 __do_softirq+0x115/0x33f kernel/softirq.c:292
 run_ksoftirqd+0x46/0x60 kernel/softirq.c:603
 smpboot_thread_fn+0x37d/0x4a0 kernel/smpboot.c:165
 kthread+0x1d4/0x200 drivers/block/aoe/aoecmd.c:1253
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:352

Reported by Kernel Concurrency Sanitizer on:
CPU: 1 PID: 16 Comm: ksoftirqd/1 Not tainted 5.4.0-rc3+ #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011

Fixes: 4b9d9be839fd ("inetpeer: remove unused list")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Reported-by: syzbot <syzkaller@googlegroups.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
5 years agonet: phy: at803x: add missing dependency on CONFIG_REGULATOR
Madalin Bucur [Thu, 7 Nov 2019 13:03:44 +0000 (15:03 +0200)]
net: phy: at803x: add missing dependency on CONFIG_REGULATOR

Compilation fails on PPC targets as CONFIG_REGULATOR is not set and
drivers/regulator/devres.c is not compiled in while functions exported
there are used by drivers/net/phy/at803x.c. Here's the error log:

  LD      .tmp_vmlinux1
drivers/net/phy/at803x.o: In function `at803x_rgmii_reg_set_voltage_sel':
drivers/net/phy/at803x.c:294: undefined reference to `.rdev_get_drvdata'
drivers/net/phy/at803x.o: In function `at803x_rgmii_reg_get_voltage_sel':
drivers/net/phy/at803x.c:306: undefined reference to `.rdev_get_drvdata'
drivers/net/phy/at803x.o: In function `at8031_register_regulators':
drivers/net/phy/at803x.c:359: undefined reference to `.devm_regulator_register'
drivers/net/phy/at803x.c:365: undefined reference to `.devm_regulator_register'
drivers/net/phy/at803x.o:(.data.rel+0x0): undefined reference to `regulator_list_voltage_table'
linux/Makefile:1074: recipe for target 'vmlinux' failed
make[1]: *** [vmlinux] Error 1

Fixes: 2f664823a470 ("net: phy: at803x: add device tree binding")
Signed-off-by: Madalin Bucur <madalin.bucur@nxp.com>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
5 years agodpaa2-eth: add ethtool MAC counters
Ioana Ciornei [Thu, 7 Nov 2019 10:44:48 +0000 (12:44 +0200)]
dpaa2-eth: add ethtool MAC counters

When a DPNI is connected to a MAC, export its associated counters.
Ethtool related functions are added in dpaa2_mac for returning the
number of counters, their strings and also their values.

Signed-off-by: Ioana Ciornei <ioana.ciornei@nxp.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
5 years agoenetc: ethtool: add wake-on-lan callbacks
Michael Walle [Thu, 7 Nov 2019 08:40:00 +0000 (09:40 +0100)]
enetc: ethtool: add wake-on-lan callbacks

If there is an external PHY, pass the wake-on-lan request to the PHY.

Signed-off-by: Michael Walle <michael@walle.cc>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
5 years agoenetc: add ioctl() support for PHY-related ops
Michael Walle [Thu, 7 Nov 2019 08:39:37 +0000 (09:39 +0100)]
enetc: add ioctl() support for PHY-related ops

If there is an attached PHY try to handle the requested ioctl with its
handler, which allows the userspace to access PHY registers, for
example. This will make mii-diag and similar tools work.

Signed-off-by: Michael Walle <michael@walle.cc>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
5 years agomlxsw: spectrum: Fix error return code in mlxsw_sp_port_module_info_init()
Wei Yongjun [Wed, 6 Nov 2019 14:52:31 +0000 (14:52 +0000)]
mlxsw: spectrum: Fix error return code in mlxsw_sp_port_module_info_init()

Fix to return negative error code -ENOMEM from the error handling
case instead of 0, as done elsewhere in this function.

Fixes: 4a7f970f1240 ("mlxsw: spectrum: Replace port_to_module array with array of structs")
Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com>
Reviewed-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
5 years agoMerge branch 'cxgb4-add-support-for-TC-MQPRIO-Qdisc-Offload'
David S. Miller [Thu, 7 Nov 2019 18:41:59 +0000 (10:41 -0800)]
Merge branch 'cxgb4-add-support-for-TC-MQPRIO-Qdisc-Offload'

Rahul Lakkireddy says:

====================
cxgb4: add support for TC-MQPRIO Qdisc Offload

This series of patches add support for offloading TC-MQPRIO Qdisc
to Chelsio T5/T6 NICs. Offloading QoS traffic shaping and pacing
requires using Ethernet Offload (ETHOFLD) resources available on
Chelsio NICs. The ETHOFLD resources are configured by firmware
and taken from the resource pool shared with other Chelsio Upper
Layer Drivers. Traffic flowing through ETHOFLD region requires a
software netdev Tx queue (EOSW_TXQ) exposed to networking stack,
and an underlying hardware Tx queue (EOHW_TXQ) used for sending
packets through hardware.

ETHOFLD region is addressed using EOTIDs, which are per-connection
resource. Hence, EOTIDs are capable of storing only a very small
number of packets in flight. To allow more connections to share
the the QoS rate limiting configuration, multiple EOTIDs must be
allocated to reduce packet drops. EOTIDs are 1-to-1 mapped with
software EOSW_TXQ. Several software EOSW_TXQs can post packets to
a single hardware EOHW_TXQ.

The series is broken down as follows:

Patch 1 queries firmware for maximum available traffic classes,
as well as, start and maximum available indices (EOTID) into ETHOFLD
region, supported by the underlying device.

Patch 2 reworks queue configuration and simplifies MSI-X allocation
logic in preparation for ETHOFLD queues support.

Patch 3 adds skeleton for validating and configuring TC-MQPRIO Qdisc
offload. Also, adds support for software EOSW_TXQs and exposes them
to network stack. Updates Tx queue selection to use fallback NIC Tx
path for unsupported traffic that can't go through ETHOFLD queues.

Patch 4 adds support for managing hardware queues to rate limit
traffic flowing through them. The queues are allocated/removed based
on enabling/disabling TC-MQPRIO Qdisc offload, respectively.

Patch 5 adds Tx path for traffic flowing through software EOSW_TXQ
and EOHW_TXQ. Also, adds Rx path to handle Tx completions.

Patch 6 updates exisiting SCHED API to configure FLOWC based QoS
offload. In the existing QUEUE based rate limiting, multiple queues
sharing a traffic class get the aggreagated max rate limit value.
On the other hand, in FLOWC based rate limiting, multiple queues
sharing a traffic class get their own individual max rate limit
value. For example, if 2 queues are bound to class 0, which is rate
limited to 1 Gbps, then in QUEUE based rate limiting, both the
queues get the aggregate max output of 1 Gbps only. In FLOWC based
rate limiting, each queue gets its own output of max 1 Gbps each;
i.e. 2 queues * 1 Gbps rate limit = 2 Gbps max output.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
5 years agocxgb4: add FLOWC based QoS offload
Rahul Lakkireddy [Thu, 7 Nov 2019 15:59:09 +0000 (21:29 +0530)]
cxgb4: add FLOWC based QoS offload

Rework SCHED API to allow offloading TC-MQPRIO QoS configuration.
The existing QUEUE based rate limiting throttles all queues sharing
a traffic class, to the specified max rate limit value. So, if
multiple queues share a traffic class, then all the queues get
the aggregate specified max rate limit.

So, introduce the new FLOWC based rate limiting, where multiple
queues can share a traffic class with each queue getting its own
individual specified max rate limit.

For example, if 2 queues are bound to class 0, which is rate limited
to 1 Gbps, then 2 queues using QUEUE based rate limiting, get the
aggregate output of 1 Gbps only. In FLOWC based rate limiting, each
queue gets its own output of max 1 Gbps each; i.e. 2 queues * 1 Gbps
rate limit = 2 Gbps.

Signed-off-by: Rahul Lakkireddy <rahul.lakkireddy@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
5 years agocxgb4: add Tx and Rx path for ETHOFLD traffic
Rahul Lakkireddy [Thu, 7 Nov 2019 15:59:08 +0000 (21:29 +0530)]
cxgb4: add Tx and Rx path for ETHOFLD traffic

Implement Tx path for traffic flowing through software EOSW_TXQ
and EOHW_TXQ. Since multiple EOSW_TXQ can post packets to a single
EOHW_TXQ, protect the hardware queue with necessary spinlock. Also,
move common code used to generate TSO work request to a common
function.

Implement Rx path to handle Tx completions for successfully
transmitted packets.

Signed-off-by: Rahul Lakkireddy <rahul.lakkireddy@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
5 years agocxgb4: add ETHOFLD hardware queue support
Rahul Lakkireddy [Thu, 7 Nov 2019 15:59:07 +0000 (21:29 +0530)]
cxgb4: add ETHOFLD hardware queue support

Add support for configuring and managing ETHOFLD hardware queues.
Keep the queue count and MSI-X allocation scheme same as NIC queues.
ETHOFLD hardware queues are dynamically allocated/destroyed as
TC-MQPRIO Qdisc offload is enabled/disabled on the corresponding
interface, respectively.

Signed-off-by: Rahul Lakkireddy <rahul.lakkireddy@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
5 years agocxgb4: parse and configure TC-MQPRIO offload
Rahul Lakkireddy [Thu, 7 Nov 2019 15:59:06 +0000 (21:29 +0530)]
cxgb4: parse and configure TC-MQPRIO offload

Add logic for validation and configuration of TC-MQPRIO Qdisc
offload. Also, add support to manage EOSW_TXQ, which have 1-to-1
mapping with EOTIDs, and expose them to network stack.

Move common skb validation in Tx path to a separate function and
add minimal Tx path for ETHOFLD. Update Tx queue selection to return
normal NIC Txq to send traffic pattern that can't go through ETHOFLD
Tx path.

Signed-off-by: Rahul Lakkireddy <rahul.lakkireddy@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
5 years agocxgb4: rework queue config and MSI-X allocation
Rahul Lakkireddy [Thu, 7 Nov 2019 15:59:05 +0000 (21:29 +0530)]
cxgb4: rework queue config and MSI-X allocation

Simplify queue configuration and MSI-X allocation logic. Use a single
MSI-X information table for both NIC and ULDs. Remove hard-coded
MSI-X indices for firmware event queue and non data interrupts.
Instead, use the MSI-X bitmap to obtain a free MSI-X index
dynamically. Save each Rxq's index into the MSI-X information table,
within the Rxq structures themselves, for easier cleanup.

Signed-off-by: Rahul Lakkireddy <rahul.lakkireddy@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
5 years agocxgb4: query firmware for QoS offload resources
Rahul Lakkireddy [Thu, 7 Nov 2019 15:59:04 +0000 (21:29 +0530)]
cxgb4: query firmware for QoS offload resources

QoS offload needs Ethernet Offload (ETHOFLD) resources present in the
NIC. These resources are shared with other ULDs. So, query firmware
for the available number of traffic classes, as well as, start and
end indices (EOTID) of the ETHOFLD region.

Signed-off-by: Rahul Lakkireddy <rahul.lakkireddy@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
5 years agonet_sched: gen_estimator: extend packet counter to 64bit
Eric Dumazet [Thu, 7 Nov 2019 04:52:40 +0000 (20:52 -0800)]
net_sched: gen_estimator: extend packet counter to 64bit

I forgot to change last_packets field in struct net_rate_estimator.

Without this fix, rate estimators would misbehave after more
than 2^32 packets have been sent.

Another solution would be to be careful and only use the
32 least significant bits of packets counters, but we have
a hole in net_rate_estimator structure and this looks
easier to read/maintain.

Fixes: d0083d98f685 ("net_sched: extend packet counter to 64bit")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
5 years agodpaa2-ptp: fix compile error
Chenwandun [Thu, 7 Nov 2019 01:39:49 +0000 (09:39 +0800)]
dpaa2-ptp: fix compile error

phylink_set_port_modes will be compiled if CONFIG_PHYLINK enabled,
dpaa2_mac_validate will be compiled if CONFIG_FSL_DPAA2_ETH enabled,
it should select CONFIG_PHYLINK when dpaa2_mac_validate call
phylink_set_port_modes

drivers/net/ethernet/freescale/dpaa2/dpaa2-mac.o: In function `dpaa2_mac_validate':
dpaa2-mac.c:(.text+0x3a1): undefined reference to `phylink_set_port_modes'
drivers/net/ethernet/freescale/dpaa2/dpaa2-mac.o: In function `dpaa2_mac_connect':
dpaa2-mac.c:(.text+0x91a): undefined reference to `phylink_create'
dpaa2-mac.c:(.text+0x94e): undefined reference to `phylink_of_phy_connect'
dpaa2-mac.c:(.text+0x97f): undefined reference to `phylink_destroy'
drivers/net/ethernet/freescale/dpaa2/dpaa2-mac.o: In function `dpaa2_mac_disconnect':
dpaa2-mac.c:(.text+0xa9f): undefined reference to `phylink_disconnect_phy'
dpaa2-mac.c:(.text+0xab0): undefined reference to `phylink_destroy'
make: *** [vmlinux] Error 1

Fixes: 719479230893 ("dpaa2-eth: add MAC/PHY support through phylink")
Signed-off-by: Chenwandun <chenwandun@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
5 years agoMerge branch '100GbE' of git://git.kernel.org/pub/scm/linux/kernel/git/jkirsher/next...
David S. Miller [Thu, 7 Nov 2019 05:45:01 +0000 (21:45 -0800)]
Merge branch '100GbE' of git://git./linux/kernel/git/jkirsher/next-queue

Jeff Kirsher says:

====================
100GbE Intel Wired LAN Driver Updates 2019-11-06

This series contains updates to ice driver only.

Scott adds ethtool -m support so that we can read eeprom data on SFP/OSFP
modules.

Anirudh updates the return value to properly reflect when SRIOV is not
supported.

Md Fahad updates the driver to handle a change in the NVM, where the
boot configuration section was moved to the Preserved Field Area (PFA)
of the NVM.

Paul resolves an issue when DCBx requests non-contiguous TCs, transmit
hangs could occur, so configure a default traffic class (TC0) in these
cases to prevent traffic hangs.  Adds a print statement to notify the
user when unsupported modules are inserted.

Bruce fixes up the driver unload code flow to ensure we do not clear the
interrupt scheme until the reset is complete, otherwise a hardware error
may occur.

Dave updates the DCB initialization to set is_sw_lldp boolean when the
firmware has been detected to be in an untenable state.  This will
ensure that the firmware is in a known state.

Michal saves off the PCI state and I/O BARs address after PCI bus reset
so that after the reset, device registers can be read.  Also adds a NULL
pointer check to prevent a potential kernel panic.

Mitch resolves an issue where VF's on PF's other than 0 were not seeing
resets by using the per-PF VF ID instead of the absolute VF ID.

Krzysztof does some code cleanup to remove a unneeded wrapper and
reduces the code complexity.

Brett reduces confusion by changing the name of ice_vc_dis_vf() to
ice_vc_reset_vf() to better describe what the function is actually
doing.

v2: dropped patch 3 "ice: Add support for FW recovery mode detection"
    from the origin al series, while Ani makes changes based on
    community feedback to implement devlink into the changes.
v3: dropped patch 1 "ice: implement set_eeprom functionality" due to a
    bug found and additional changes will be needed when Ani implements
    devlink in the driver.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
5 years agonet: dsa: mv8e6xxx: Fix stub function parameters
Andrew Lunn [Thu, 7 Nov 2019 00:18:00 +0000 (01:18 +0100)]
net: dsa: mv8e6xxx: Fix stub function parameters

mv88e6xxx_g2_atu_stats_get() takes two parameters. Make the stub
function also take two, otherwise we get compile errors.

Fixes: c5f299d59261 ("net: dsa: mv88e6xxx: global1_atu: Add helper for get next")
Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
5 years agoMerge branch 'net-phy-at803x-device-tree-binding'
David S. Miller [Thu, 7 Nov 2019 05:42:06 +0000 (21:42 -0800)]
Merge branch 'net-phy-at803x-device-tree-binding'

Michael Walle says:

====================
net: phy: at803x device tree binding

Adds a device tree binding to configure the clock and the RGMII voltage.

Changes since v1:
 - rebased to latest net-next
 - renamed "Atheros" to "Qualcomm Atheros"
 - add a new patch to remove config_init() from AR9331

Changes since the RFC:
 - renamed the Kconfig entry to "Qualcomm Atheros.." and reordered the
   item
 - renamed the prefix from atheros to qca
 - use the correct name AR803x (instead of AT803x) in new files and
   dt-bindings.
 - listed the PHY maintainers in the new schema. Hopefully, thats ok.
 - fixed a typo in the bindings schema
 - run dtb_checks and dt_binding_check and fixed the schema
 - dropped the rgmii-io-1v8 property; instead provide two regulators vddh
   and vddio, add one consumer vddio-supply
 - fix the clock settings for the AR8030/AR8035
 - only the AR8031 supports chaning the LDO and the PLL mode in software.
   Check if we have the correct PHY.
 - new patch to mention the AR8033 which is the same as the AR8031 just
   without PTP support
 - new patch which corrects any displayed PHY names and comments. Be
   consistent.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
5 years agonet: phy: at803x: remove config_init for AR9331
Michael Walle [Wed, 6 Nov 2019 22:36:17 +0000 (23:36 +0100)]
net: phy: at803x: remove config_init for AR9331

According to its datasheet, the internal PHY doesn't have debug
registers nor MMDs. Since config_init() only configures delays and
clocks and so on in these registers it won't be needed on this PHY.
Remove it.

Signed-off-by: Michael Walle <michael@walle.cc>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
5 years agonet: phy: at803x: fix the PHY names
Michael Walle [Wed, 6 Nov 2019 22:36:16 +0000 (23:36 +0100)]
net: phy: at803x: fix the PHY names

Fix at least the displayed strings. The actual name of the chip is
AR803x.

Signed-off-by: Michael Walle <michael@walle.cc>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
5 years agonet: phy: at803x: mention AR8033 as same as AR8031
Michael Walle [Wed, 6 Nov 2019 22:36:15 +0000 (23:36 +0100)]
net: phy: at803x: mention AR8033 as same as AR8031

The AR8033 is the AR8031 without PTP support. All other registers are
the same. Unfortunately, they share the same PHY ID. Therefore, we
cannot distinguish between the one with PTP support and the one without.

Signed-off-by: Michael Walle <michael@walle.cc>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
5 years agonet: phy: at803x: add device tree binding
Michael Walle [Wed, 6 Nov 2019 22:36:14 +0000 (23:36 +0100)]
net: phy: at803x: add device tree binding

Add support for configuring the CLK_25M pin as well as the RGMII I/O
voltage by the device tree.

Signed-off-by: Michael Walle <michael@walle.cc>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
5 years agodt-bindings: net: phy: Add support for AT803X
Michael Walle [Wed, 6 Nov 2019 22:36:13 +0000 (23:36 +0100)]
dt-bindings: net: phy: Add support for AT803X

Document the Atheros AR803x PHY bindings.

Signed-off-by: Michael Walle <michael@walle.cc>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
5 years agonet: phy: at803x: fix Kconfig description
Michael Walle [Wed, 6 Nov 2019 22:36:12 +0000 (23:36 +0100)]
net: phy: at803x: fix Kconfig description

The name of the PHY is actually AR803x not AT803x. Additionally, add the
name of the vendor and mention the AR8031 support.

Signed-off-by: Michael Walle <michael@walle.cc>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
5 years agotcp: fix data-race in tcp_recvmsg()
Eric Dumazet [Wed, 6 Nov 2019 20:59:33 +0000 (12:59 -0800)]
tcp: fix data-race in tcp_recvmsg()

Reading tp->recvmsg_inq after socket lock is released
raises a KCSAN warning [1]

Replace has_tss & has_cmsg by cmsg_flags and make
sure to not read tp->recvmsg_inq a second time.

[1]
BUG: KCSAN: data-race in tcp_chrono_stop / tcp_recvmsg

write to 0xffff888126adef24 of 2 bytes by interrupt on cpu 0:
 tcp_chrono_set net/ipv4/tcp_output.c:2309 [inline]
 tcp_chrono_stop+0x14c/0x280 net/ipv4/tcp_output.c:2338
 tcp_clean_rtx_queue net/ipv4/tcp_input.c:3165 [inline]
 tcp_ack+0x274f/0x3170 net/ipv4/tcp_input.c:3688
 tcp_rcv_established+0x37e/0xf50 net/ipv4/tcp_input.c:5696
 tcp_v4_do_rcv+0x381/0x4e0 net/ipv4/tcp_ipv4.c:1561
 tcp_v4_rcv+0x19dc/0x1bb0 net/ipv4/tcp_ipv4.c:1942
 ip_protocol_deliver_rcu+0x4d/0x420 net/ipv4/ip_input.c:204
 ip_local_deliver_finish+0x110/0x140 net/ipv4/ip_input.c:231
 NF_HOOK include/linux/netfilter.h:305 [inline]
 NF_HOOK include/linux/netfilter.h:299 [inline]
 ip_local_deliver+0x133/0x210 net/ipv4/ip_input.c:252
 dst_input include/net/dst.h:442 [inline]
 ip_rcv_finish+0x121/0x160 net/ipv4/ip_input.c:413
 NF_HOOK include/linux/netfilter.h:305 [inline]
 NF_HOOK include/linux/netfilter.h:299 [inline]
 ip_rcv+0x18f/0x1a0 net/ipv4/ip_input.c:523
 __netif_receive_skb_one_core+0xa7/0xe0 net/core/dev.c:5010
 __netif_receive_skb+0x37/0xf0 net/core/dev.c:5124
 netif_receive_skb_internal+0x59/0x190 net/core/dev.c:5214
 napi_skb_finish net/core/dev.c:5677 [inline]
 napi_gro_receive+0x28f/0x330 net/core/dev.c:5710

read to 0xffff888126adef25 of 1 bytes by task 7275 on cpu 1:
 tcp_recvmsg+0x77b/0x1a30 net/ipv4/tcp.c:2187
 inet_recvmsg+0xbb/0x250 net/ipv4/af_inet.c:838
 sock_recvmsg_nosec net/socket.c:871 [inline]
 sock_recvmsg net/socket.c:889 [inline]
 sock_recvmsg+0x92/0xb0 net/socket.c:885
 sock_read_iter+0x15f/0x1e0 net/socket.c:967
 call_read_iter include/linux/fs.h:1889 [inline]
 new_sync_read+0x389/0x4f0 fs/read_write.c:414
 __vfs_read+0xb1/0xc0 fs/read_write.c:427
 vfs_read fs/read_write.c:461 [inline]
 vfs_read+0x143/0x2c0 fs/read_write.c:446
 ksys_read+0xd5/0x1b0 fs/read_write.c:587
 __do_sys_read fs/read_write.c:597 [inline]
 __se_sys_read fs/read_write.c:595 [inline]
 __x64_sys_read+0x4c/0x60 fs/read_write.c:595
 do_syscall_64+0xcc/0x370 arch/x86/entry/common.c:290
 entry_SYSCALL_64_after_hwframe+0x44/0xa9

Reported by Kernel Concurrency Sanitizer on:
CPU: 1 PID: 7275 Comm: sshd Not tainted 5.4.0-rc3+ #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011

Fixes: b75eba76d3d7 ("tcp: send in-queue bytes in cmsg upon read")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Acked-by: Soheil Hassas Yeganeh <soheil@google.com>
Reported-by: syzbot <syzkaller@googlegroups.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
5 years agonet: silence data-races on sk_backlog.tail
Eric Dumazet [Wed, 6 Nov 2019 18:04:11 +0000 (10:04 -0800)]
net: silence data-races on sk_backlog.tail

sk->sk_backlog.tail might be read without holding the socket spinlock,
we need to add proper READ_ONCE()/WRITE_ONCE() to silence the warnings.

KCSAN reported :

BUG: KCSAN: data-race in tcp_add_backlog / tcp_recvmsg

write to 0xffff8881265109f8 of 8 bytes by interrupt on cpu 1:
 __sk_add_backlog include/net/sock.h:907 [inline]
 sk_add_backlog include/net/sock.h:938 [inline]
 tcp_add_backlog+0x476/0xce0 net/ipv4/tcp_ipv4.c:1759
 tcp_v4_rcv+0x1a70/0x1bd0 net/ipv4/tcp_ipv4.c:1947
 ip_protocol_deliver_rcu+0x4d/0x420 net/ipv4/ip_input.c:204
 ip_local_deliver_finish+0x110/0x140 net/ipv4/ip_input.c:231
 NF_HOOK include/linux/netfilter.h:305 [inline]
 NF_HOOK include/linux/netfilter.h:299 [inline]
 ip_local_deliver+0x133/0x210 net/ipv4/ip_input.c:252
 dst_input include/net/dst.h:442 [inline]
 ip_rcv_finish+0x121/0x160 net/ipv4/ip_input.c:413
 NF_HOOK include/linux/netfilter.h:305 [inline]
 NF_HOOK include/linux/netfilter.h:299 [inline]
 ip_rcv+0x18f/0x1a0 net/ipv4/ip_input.c:523
 __netif_receive_skb_one_core+0xa7/0xe0 net/core/dev.c:4929
 __netif_receive_skb+0x37/0xf0 net/core/dev.c:5043
 netif_receive_skb_internal+0x59/0x190 net/core/dev.c:5133
 napi_skb_finish net/core/dev.c:5596 [inline]
 napi_gro_receive+0x28f/0x330 net/core/dev.c:5629
 receive_buf+0x284/0x30b0 drivers/net/virtio_net.c:1061
 virtnet_receive drivers/net/virtio_net.c:1323 [inline]
 virtnet_poll+0x436/0x7d0 drivers/net/virtio_net.c:1428
 napi_poll net/core/dev.c:6311 [inline]
 net_rx_action+0x3ae/0xa90 net/core/dev.c:6379
 __do_softirq+0x115/0x33f kernel/softirq.c:292
 invoke_softirq kernel/softirq.c:373 [inline]
 irq_exit+0xbb/0xe0 kernel/softirq.c:413
 exiting_irq arch/x86/include/asm/apic.h:536 [inline]
 do_IRQ+0xa6/0x180 arch/x86/kernel/irq.c:263
 ret_from_intr+0x0/0x19
 native_safe_halt+0xe/0x10 arch/x86/kernel/paravirt.c:71
 arch_cpu_idle+0x1f/0x30 arch/x86/kernel/process.c:571
 default_idle_call+0x1e/0x40 kernel/sched/idle.c:94
 cpuidle_idle_call kernel/sched/idle.c:154 [inline]
 do_idle+0x1af/0x280 kernel/sched/idle.c:263
 cpu_startup_entry+0x1b/0x20 kernel/sched/idle.c:355
 start_secondary+0x208/0x260 arch/x86/kernel/smpboot.c:264
 secondary_startup_64+0xa4/0xb0 arch/x86/kernel/head_64.S:241

read to 0xffff8881265109f8 of 8 bytes by task 8057 on cpu 0:
 tcp_recvmsg+0x46e/0x1b40 net/ipv4/tcp.c:2050
 inet_recvmsg+0xbb/0x250 net/ipv4/af_inet.c:838
 sock_recvmsg_nosec net/socket.c:871 [inline]
 sock_recvmsg net/socket.c:889 [inline]
 sock_recvmsg+0x92/0xb0 net/socket.c:885
 sock_read_iter+0x15f/0x1e0 net/socket.c:967
 call_read_iter include/linux/fs.h:1889 [inline]
 new_sync_read+0x389/0x4f0 fs/read_write.c:414
 __vfs_read+0xb1/0xc0 fs/read_write.c:427
 vfs_read fs/read_write.c:461 [inline]
 vfs_read+0x143/0x2c0 fs/read_write.c:446
 ksys_read+0xd5/0x1b0 fs/read_write.c:587
 __do_sys_read fs/read_write.c:597 [inline]
 __se_sys_read fs/read_write.c:595 [inline]
 __x64_sys_read+0x4c/0x60 fs/read_write.c:595
 do_syscall_64+0xcc/0x370 arch/x86/entry/common.c:290
 entry_SYSCALL_64_after_hwframe+0x44/0xa9

Reported by Kernel Concurrency Sanitizer on:
CPU: 0 PID: 8057 Comm: syz-fuzzer Not tainted 5.4.0-rc6+ #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011

Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
5 years agodpaa2-eth: fix an always true condition in dpaa2_mac_get_if_mode
Ioana Ciornei [Wed, 6 Nov 2019 17:06:50 +0000 (19:06 +0200)]
dpaa2-eth: fix an always true condition in dpaa2_mac_get_if_mode

Convert the phy_mode() function to return the if_mode through an
argument, similar to the new form of of_get_phy_mode().
This will help with handling errors in a common manner and also will fix
an always true condition.

Fixes: 0c65b2b90d13 ("net: of_get_phy_mode: Change API to solve int/unit warnings")
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Ioana Ciornei <ioana.ciornei@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
5 years agonet: openvswitch: select vport upcall portid directly
Tonghao Zhang [Wed, 6 Nov 2019 16:34:28 +0000 (00:34 +0800)]
net: openvswitch: select vport upcall portid directly

The commit 69c51582ff786 ("dpif-netlink: don't allocate per
thread netlink sockets"), in Open vSwitch ovs-vswitchd, has
changed the number of allocated sockets to just one per port
by moving the socket array from a per handler structure to
a per datapath one. In the kernel datapath, a vport will have
only one socket in most case, if so select it directly in
fast-path.

Signed-off-by: Tonghao Zhang <xiangxia.m.yue@gmail.com>
Acked-by: Pravin B Shelar <pshelar@ovn.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
5 years agonet: axienet: Fix error return code in axienet_probe()
Wei Yongjun [Wed, 6 Nov 2019 15:54:49 +0000 (15:54 +0000)]
net: axienet: Fix error return code in axienet_probe()

In the DMA memory resource get failed case, the error is not
set and 0 will be returned. Fix it by removing redundant check
since devm_ioremap_resource() will handle it.

Fixes: 28ef9ebdb64c ("net: axienet: make use of axistream-connected attribute optional")
Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com>
Reviewed-by: Radhey Shyam Pandey <radhey.shyam.pandey@xilinx.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
5 years agonet: aquantia: fix return value check in aq_ptp_init()
Wei Yongjun [Wed, 6 Nov 2019 14:59:21 +0000 (14:59 +0000)]
net: aquantia: fix return value check in aq_ptp_init()

Function ptp_clock_register() returns ERR_PTR() and never returns
NULL. The NULL test should be removed.

Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com>
Acked-by: Igor Russkikh <irusskikh@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
5 years agoptp: ptp_clockmatrix: Fix missing unlock on error in idtcm_probe()
Wei Yongjun [Wed, 6 Nov 2019 14:33:09 +0000 (14:33 +0000)]
ptp: ptp_clockmatrix: Fix missing unlock on error in idtcm_probe()

Add the missing unlock before return from function idtcm_probe()
in the error handling case.

Fixes: 3a6ba7dc7799 ("ptp: Add a ptp clock driver for IDT ClockMatrix.")
Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com>
Reviewed-by: Vincent Cheng <vincent.cheng.xh@renesas.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
5 years agotipc: eliminate the dummy packet in link synching
Tuong Lien [Wed, 6 Nov 2019 11:12:17 +0000 (18:12 +0700)]
tipc: eliminate the dummy packet in link synching

When preparing tunnel packets for the link failover or synchronization,
as for the safe algorithm, we added a dummy packet on the pair link but
never sent it out. In the case of failover, the pair link will be reset
anyway. But for link synching, it will always result in retransmission
of the dummy packet after that.
We have also observed that such the retransmission at the early stage
when a new node comes in a large cluster will take some time and hard
to be done, leading to the repeated retransmit failures and the link is
reset.

Since in commit 4929a932be33 ("tipc: optimize link synching mechanism")
we have already built a dummy 'TUNNEL_PROTOCOL' message on the new link
for the synchronization, there's no need for the dummy on the pair one,
this commit will skip it when the new mechanism takes in place. In case
nothing exists in the pair link's transmq, the link synching will just
start and stop shortly on the peer side.

The patch is backward compatible.

Acked-by: Jon Maloy <jon.maloy@ericsson.com>
Tested-by: Hoang Le <hoang.h.le@dektech.com.au>
Signed-off-by: Tuong Lien <tuong.t.lien@dektech.com.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
5 years agoMerge branch 'lwtunnel-add-ip-and-ip6-options-setting-and-dumping'
David S. Miller [Thu, 7 Nov 2019 05:14:22 +0000 (21:14 -0800)]
Merge branch 'lwtunnel-add-ip-and-ip6-options-setting-and-dumping'

Xin Long says:

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

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

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

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

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

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

Signed-off-by: David S. Miller <davem@davemloft.net>
5 years agolwtunnel: add options setting and dumping for erspan
Xin Long [Wed, 6 Nov 2019 09:01:07 +0000 (17:01 +0800)]
lwtunnel: add options setting and dumping for erspan

Based on the code framework built on the last patch, to
support setting and dumping for vxlan, we only need to
add ip_tun_parse_opts_erspan() for .build_state and
ip_tun_fill_encap_opts_erspan() for .fill_encap and
if (tun_flags & TUNNEL_ERSPAN_OPT) for .get_encap_size.

Signed-off-by: Xin Long <lucien.xin@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
5 years agolwtunnel: add options setting and dumping for vxlan
Xin Long [Wed, 6 Nov 2019 09:01:06 +0000 (17:01 +0800)]
lwtunnel: add options setting and dumping for vxlan

Based on the code framework built on the last patch, to
support setting and dumping for vxlan, we only need to
add ip_tun_parse_opts_vxlan() for .build_state and
ip_tun_fill_encap_opts_vxlan() for .fill_encap and
if (tun_flags & TUNNEL_VXLAN_OPT) for .get_encap_size.

Signed-off-by: Xin Long <lucien.xin@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
5 years agolwtunnel: add options setting and dumping for geneve
Xin Long [Wed, 6 Nov 2019 09:01:05 +0000 (17:01 +0800)]
lwtunnel: add options setting and dumping for geneve

To add options setting and dumping, .build_state(), .fill_encap() and
.get_encap_size() in ip_tun_lwt_ops needs to be extended:

ip_tun_build_state():
  ip_tun_parse_opts():
    ip_tun_parse_opts_geneve()

ip_tun_fill_encap_info():
  ip_tun_fill_encap_opts():
    ip_tun_fill_encap_opts_geneve()

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

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

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

Signed-off-by: Xin Long <lucien.xin@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
5 years agolwtunnel: add options process for cmp_encap
Xin Long [Wed, 6 Nov 2019 09:01:04 +0000 (17:01 +0800)]
lwtunnel: add options process for cmp_encap

When comparing two tun_info, dst_cache member should have been skipped,
as dst_cache is a per cpu pointer and they are always different values
even in two tun_info with the same keys.

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

Fixes: 2d79849903e0 ("lwtunnel: ip tunnel: fix multiple routes with different encap")
Signed-off-by: Xin Long <lucien.xin@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
5 years agolwtunnel: add options process for arp request
Xin Long [Wed, 6 Nov 2019 09:01:03 +0000 (17:01 +0800)]
lwtunnel: add options process for arp request

Without options copied to the dst tun_info in iptunnel_metadata_reply()
called by arp_process for handling arp_request, the generated arp_reply
packet may be dropped or sent out with wrong options for some tunnels
like erspan and vxlan, and the traffic will break.

Fixes: 63d008a4e9ee ("ipv4: send arp replies to the correct tunnel")
Signed-off-by: Xin Long <lucien.xin@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
5 years agotipc: reduce sensitive to retransmit failures
Hoang Le [Wed, 6 Nov 2019 06:26:10 +0000 (13:26 +0700)]
tipc: reduce sensitive to retransmit failures

With huge cluster (e.g >200nodes), the amount of that flow:
gap -> retransmit packet -> acked will take time in case of STATE_MSG
dropped/delayed because a lot of traffic. This lead to 1.5 sec tolerance
value criteria made link easy failure around 2nd, 3rd of failed
retransmission attempts.

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

Fixes: 77cf8edbc0e7 ("tipc: simplify stale link failure criteria")
Acked-by: Jon Maloy <jon.maloy@ericsson.com>
Signed-off-by: Hoang Le <hoang.h.le@dektech.com.au>
Acked-by: Jon
Signed-off-by: David S. Miller <davem@davemloft.net>
5 years agotipc: update cluster capabilities if node deleted
Hoang Le [Wed, 6 Nov 2019 06:26:09 +0000 (13:26 +0700)]
tipc: update cluster capabilities if node deleted

There are two improvements when re-calculate cluster capabilities:

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

Acked-by: Jon Maloy <jon.maloy@ericsson.com>
Signed-off-by: Hoang Le <hoang.h.le@dektech.com.au>
Acked-by: Jon
Signed-off-by: David S. Miller <davem@davemloft.net>
5 years agoselftest: net: add some traceroute tests
Francesco Ruggeri [Tue, 5 Nov 2019 22:48:35 +0000 (14:48 -0800)]
selftest: net: add some traceroute tests

Added the following traceroute tests.

IPV6:
Verify that in this scenario

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

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

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

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

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

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

Signed-off-by: Francesco Ruggeri <fruggeri@arista.com>
Reviewed-by: David Ahern <dsahern@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
5 years agoice: Fix return value when SR-IOV is not supported
Anirudh Venkataramanan [Wed, 9 Oct 2019 14:09:53 +0000 (07:09 -0700)]
ice: Fix return value when SR-IOV is not supported

When the device is not capable of supporting SR-IOV -ENODEV is being
returned; -EOPNOTSUPP is more appropriate.

Signed-off-by: Anirudh Venkataramanan <anirudh.venkataramanan@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
5 years agoice: Rename VF function ice_vc_dis_vf to match its behavior
Brett Creeley [Wed, 9 Oct 2019 14:09:52 +0000 (07:09 -0700)]
ice: Rename VF function ice_vc_dis_vf to match its behavior

ice_vc_dis_vf() tells iavf that it's going to perform a reset
and then performs a software reset. This is misleading based on
the function name because the VF does not get disabled. So fix
this by changing the name to ice_vc_reset_vf().

Signed-off-by: Brett Creeley <brett.creeley@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
5 years agoice: Get rid of ice_cleanup_header
Krzysztof Kazimierczak [Wed, 9 Oct 2019 14:09:51 +0000 (07:09 -0700)]
ice: Get rid of ice_cleanup_header

ice_cleanup_hdrs() has been stripped of most of its content, it only serves
as a wrapper for eth_skb_pad(). We can get rid of it altogether and
simplify the codebase.

Signed-off-by: Krzysztof Kazimierczak <krzysztof.kazimierczak@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
5 years agoice: print PCI link speed and width
Paul Greenwalt [Wed, 9 Oct 2019 14:09:50 +0000 (07:09 -0700)]
ice: print PCI link speed and width

Print message to inform user of PCI link speed and width.

Signed-off-by: Paul Greenwalt <paul.greenwalt@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
5 years agoice: print unsupported module message
Paul Greenwalt [Wed, 9 Oct 2019 14:09:49 +0000 (07:09 -0700)]
ice: print unsupported module message

Print message to inform user if unsupported module is inserted, and
extend the topology / configuration detection.

Signed-off-by: Paul Greenwalt <paul.greenwalt@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
5 years agoice: write register with correct offset
Mitch Williams [Wed, 9 Oct 2019 14:09:48 +0000 (07:09 -0700)]
ice: write register with correct offset

The VF_MBX_ARQLEN register array is per-PF, not global, so we should not
use the absolute VF ID as an index. Instead, use the per-PF VF ID.

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

Signed-off-by: Mitch Williams <mitch.a.williams@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
5 years agoice: Check for null pointer dereference when setting rings
Michal Swiatkowski [Wed, 9 Oct 2019 14:09:47 +0000 (07:09 -0700)]
ice: Check for null pointer dereference when setting rings

Without this check rebuild vsi can lead to kernel panic.

Signed-off-by: Michal Swiatkowski <michal.swiatkowski@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
5 years agoice: save PCI state in probe
Michal Swiatkowski [Wed, 9 Oct 2019 14:09:46 +0000 (07:09 -0700)]
ice: save PCI state in probe

Save state to correct recovery memory and I/O BARs address
after PCI bus reset. Without this after reset kernel can't
read device registers.

Signed-off-by: Michal Swiatkowski <michal.swiatkowski@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
5 years agoice: Adjust DCB INIT for SW mode
Dave Ertman [Wed, 9 Oct 2019 14:09:45 +0000 (07:09 -0700)]
ice: Adjust DCB INIT for SW mode

Adjust ice_init_dcb to set the is_sw_lldp boolean
in the case where the FW has been detected to be
in an untenable state such that the driver
should forcibly make sure it is off.

This will ensure that the FW is in a known state.

Signed-off-by: Dave Ertman <david.m.ertman@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
5 years agoice: fix driver unload flow
Bruce Allan [Wed, 9 Oct 2019 14:09:44 +0000 (07:09 -0700)]
ice: fix driver unload flow

As part of the driver unload flow, a PF reset is issued which may still
cause an interrupt to be generated by the device.  Do not clear the
interrupt scheme until the reset is complete and there are no pending
transactions otherwise a hardware error may occur.

Signed-off-by: Bruce Allan <bruce.w.allan@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
5 years agoice: handle DCBx non-contiguous TC request
Paul Greenwalt [Wed, 9 Oct 2019 14:09:43 +0000 (07:09 -0700)]
ice: handle DCBx non-contiguous TC request

If DCBx request non-contiguous TCs, then the driver will configure default
traffic class (TC0). This is done to prevent Tx hang since the driver
currently does not support non-contiguous TC.

Signed-off-by: Paul Greenwalt <paul.greenwalt@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
5 years agoice: Update Boot Configuration Section read of NVM
Md Fahad Iqbal Polash [Wed, 9 Oct 2019 14:09:42 +0000 (07:09 -0700)]
ice: Update Boot Configuration Section read of NVM

The Boot Configuration Section Block has been moved to the Preserved Field
Area (PFA) of NVM. Update the NVM reads that involves Boot Configuration
Section.

Signed-off-by: Md Fahad Iqbal Polash <md.fahad.iqbal.polash@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>
5 years agoice: add ethtool -m support for reading i2c eeprom modules
Scott W Taylor [Wed, 9 Oct 2019 14:09:40 +0000 (07:09 -0700)]
ice: add ethtool -m support for reading i2c eeprom modules

Implement ethtool -m support to read eeprom data from SFP/QSFP modules.

Signed-off-by: Scott W Taylor <scott.w.taylor@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>
5 years agoMerge branch 'net-various-KCSAN-inspired-fixes'
David S. Miller [Thu, 7 Nov 2019 00:14:48 +0000 (16:14 -0800)]
Merge branch 'net-various-KCSAN-inspired-fixes'

Eric Dumazet says:

====================
net: various KCSAN inspired fixes

This is a series of minor fixes, mostly dealing with
lockless accesses to socket 'sk_ack_backlog', 'sk_max_ack_backlog'
ane neighbour 'confirmed' fields.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
5 years agonet: annotate lockless accesses to sk->sk_max_ack_backlog
Eric Dumazet [Tue, 5 Nov 2019 22:11:54 +0000 (14:11 -0800)]
net: annotate lockless accesses to sk->sk_max_ack_backlog

sk->sk_max_ack_backlog can be read without any lock being held
at least in TCP/DCCP cases.

We need to use READ_ONCE()/WRITE_ONCE() to avoid load/store tearing
and/or potential KCSAN warnings.

Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
5 years agonet: annotate lockless accesses to sk->sk_ack_backlog
Eric Dumazet [Tue, 5 Nov 2019 22:11:53 +0000 (14:11 -0800)]
net: annotate lockless accesses to sk->sk_ack_backlog

sk->sk_ack_backlog can be read without any lock being held.
We need to use READ_ONCE()/WRITE_ONCE() to avoid load/store tearing
and/or potential KCSAN warnings.

Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
5 years agonet: use helpers to change sk_ack_backlog
Eric Dumazet [Tue, 5 Nov 2019 22:11:52 +0000 (14:11 -0800)]
net: use helpers to change sk_ack_backlog

Writers are holding a lock, but many readers do not.

Following patch will add appropriate barriers in
sk_acceptq_removed() and sk_acceptq_added().

Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
5 years agonet: avoid potential false sharing in neighbor related code
Eric Dumazet [Tue, 5 Nov 2019 22:11:51 +0000 (14:11 -0800)]
net: avoid potential false sharing in neighbor related code

There are common instances of the following construct :

if (n->confirmed != now)
n->confirmed = now;

A C compiler could legally remove the conditional.

Use READ_ONCE()/WRITE_ONCE() to avoid this problem.

Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
5 years agoinet_diag: use jiffies_delta_to_msecs()
Eric Dumazet [Tue, 5 Nov 2019 22:11:50 +0000 (14:11 -0800)]
inet_diag: use jiffies_delta_to_msecs()

Use jiffies_delta_to_msecs() to avoid reporting 'infinite'
timeouts and to cleanup code.

Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
5 years agonet: neigh: use long type to store jiffies delta
Eric Dumazet [Tue, 5 Nov 2019 22:11:49 +0000 (14:11 -0800)]
net: neigh: use long type to store jiffies delta

A difference of two unsigned long needs long storage.

Fixes: c7fb64db001f ("[NETLINK]: Neighbour table configuration and statistics via rtnetlink")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
5 years agotc-testing: updated pedit TDC tests
Roman Mashak [Tue, 5 Nov 2019 21:43:28 +0000 (16:43 -0500)]
tc-testing: updated pedit TDC tests

Added tests for u8/u32 clear value, u8/16 retain value, u16/32 invert value,
u8/u16/u32 preserve value and test for negative offsets.

Signed-off-by: Roman Mashak <mrv@mojatatu.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
5 years agoselftests: devlink: undo changes at the end of resource_test
Jakub Kicinski [Tue, 5 Nov 2019 21:28:17 +0000 (13:28 -0800)]
selftests: devlink: undo changes at the end of resource_test

The netdevsim object is reused by all the tests, but the resource
tests puts it into a broken state (failed reload in a different
namespace). Make sure it's fixed up at the end of that test
otherwise subsequent tests fail.

Fixes: b74c37fd35a2 ("selftests: netdevsim: add tests for devlink reload with resources")
Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Acked-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
5 years agogianfar: Maximize Rx buffer size
Claudiu Manoil [Tue, 5 Nov 2019 18:18:21 +0000 (20:18 +0200)]
gianfar: Maximize Rx buffer size

Until now the size of a Rx buffer was artificially limited
to 1536B (which happens to be the default, after reset, hardware
value for a Rx buffer). This approach however leaves unused
memory space for Rx packets, since the driver uses a paged
allocation scheme that reserves half a page for each Rx skb.
There's also the inconvenience that frames around 1536 bytes
can get scattered if the limit is slightly exceeded. This limit
can be exceeded even for standard MTU of 1500B traffic, for common
cases like stacked VLANs, or DSA tags.
To address these issues, let's just compute the buffer size
starting from the upper limit of 2KB (half a page) and
subtract the skb overhead and alignment restrictions.

Signed-off-by: Claudiu Manoil <claudiu.manoil@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
5 years agoehea: replace with page_shift() in ehea_is_hugepage()
Yunfeng Ye [Tue, 5 Nov 2019 11:30:45 +0000 (19:30 +0800)]
ehea: replace with page_shift() in ehea_is_hugepage()

The function page_shift() is supported after the commit 94ad9338109f
("mm: introduce page_shift()").

So replace with page_shift() in ehea_is_hugepage() for readability.

Signed-off-by: Yunfeng Ye <yeyunfeng@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
5 years agonet: forcedeth: add xmit_more support
Zhu Yanjun [Wed, 6 Nov 2019 06:01:11 +0000 (01:01 -0500)]
net: forcedeth: add xmit_more support

This change adds support for xmit_more based on the igb commit 6f19e12f6230
("igb: flush when in xmit_more mode and under descriptor pressure") and
commit 6b16f9ee89b8 ("net: move skb->xmit_more hint to softnet data") that
were made to igb to support this feature. The function netif_xmit_stopped
is called to check whether transmit queue on device is currently unable to
send to determine whether we must write the tail because we can add no
further buffers.

When normal packets and/or xmit_more packets fill up tx_desc, it is
necessary to trigger NIC tx reg.

Following the advice from David Miller and Jakub Kicinski, after the
xmit_more feature is added, the following scenario will occur.

         |
   xmit_more packets
         |
   DMA_MAPPING
         |
   DMA_MAPPING error check
         |
   xmit_more packets already in HW xmit queue
         |

In the above scenario, if DMA_MAPPING error occurrs, the xmit_more packets
already in HW xmit queue will also be dropped. This is different from the
behavior before xmit_more feature. So it is necessary to trigger NIC HW tx
reg in the above scenario.

To the non-xmit_more packets, the above scenario will not occur.

Tested:
  - pktgen (xmit_more packets) SMP x86_64 ->
    Test command:
    ./pktgen_sample03_burst_single_flow.sh ... -b 8 -n 1000000
    Test results:
    Params:
    ...
    burst: 8
    ...
    Result: OK: 12194004(c12188996+d5007) usec, 1000001 (1500byte,0frags)
    82007pps 984Mb/sec (984084000bps) errors: 0

  - iperf (normal packets) SMP x86_64 ->
    Test command:
    Server: iperf -s
    Client: iperf -c serverip
    Result:
    TCP window size: 85.0 KByte (default)
    ------------------------------------------------------------
    [ ID] Interval       Transfer     Bandwidth
    [  3]  0.0-10.0 sec  1.10 GBytes   942 Mbits/sec

CC: Joe Jin <joe.jin@oracle.com>
CC: JUNXIAO_BI <junxiao.bi@oracle.com>
Reported-and-tested-by: Nan san <nan.1986san@gmail.com>
Signed-off-by: Zhu Yanjun <yanjun.zhu@oracle.com>
Acked-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
5 years agoMerge branch 'netdevsim-fix-tests-and-netdevsim'
David S. Miller [Wed, 6 Nov 2019 17:59:58 +0000 (09:59 -0800)]
Merge branch 'netdevsim-fix-tests-and-netdevsim'

Jakub Kicinski says:

====================
netdevsim: fix tests and netdevsim

The first patch fixes a merge which brought back some dead
code. Next a tiny re-write of the main test using netdevsim
aims to ease debugging.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
5 years agoselftests: bpf: log direct file writes
Jakub Kicinski [Tue, 5 Nov 2019 21:26:12 +0000 (13:26 -0800)]
selftests: bpf: log direct file writes

Recent changes to netdevsim moved creating and destroying
devices from netlink to sysfs. The sysfs writes have been
implemented as direct writes, without shelling out. This
is faster, but leaves no trace in the logs. Add explicit
logs to make debugging possible.

Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Acked-by: Daniel Borkmann <daniel@iogearbox.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
5 years agonetdevsim: drop code duplicated by a merge
Jakub Kicinski [Tue, 5 Nov 2019 21:26:11 +0000 (13:26 -0800)]
netdevsim: drop code duplicated by a merge

Looks like the port adding loop makes a re-appearance on net-next
after net was merged back into it (even though it doesn't feature
in the merge diff).

The ports are already added in nsim_dev_create() so when we try
to add them again get EEXIST, and see:

netdevsim: probe of netdevsim0 failed with error -17

in the logs. When we remove the loop again the nsim_dev_probe()
and nsim_dev_remove() become a wrapper of nsim_dev_create() and
nsim_dev_destroy(). Remove this layer of indirection.

Fixes: d31e95585ca6 ("Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net")
Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Acked-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
5 years agoMerge tag 'wireless-drivers-next-2019-11-05' of git://git.kernel.org/pub/scm/linux...
David S. Miller [Wed, 6 Nov 2019 02:36:35 +0000 (18:36 -0800)]
Merge tag 'wireless-drivers-next-2019-11-05' of git://git./linux/kernel/git/kvalo/wireless-drivers-next

Kalle Valo says:

====================
wireless-drivers-next patches for 5.5

First set of patches for 5.5. The most active driver here clearly is
rtw88, lots of patches for it. More quiet on other drivers, smaller
fixes and cleanups all over.

This pull request also has a trivial conflict, the report and example
resolution here:

https://lkml.kernel.org/r/20191031111242.50ab1eca@canb.auug.org.au

Major changes:

rtw88

* add deep power save support

* add mac80211 software tx queue (wake_tx_queue) support

* enable hardware rate control

* add TX-AMSDU support

* add NL80211_EXT_FEATURE_CAN_REPLACE_PTK0 support

* add power tracking support

* add 802.11ac beamformee support

* add set_bitrate_mask support

* add phy_info debugfs to show Tx/Rx physical status

* add RFE type 3 support for 8822b

ath10k

* add support for hardware rfkill on devices where firmware supports it

rtl8xxxu

* add bluetooth co-existence support for single antenna

iwlwifi

* Revamp the debugging infrastructure
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
5 years agoMerge tag 'batadv-next-for-davem-20191105' of git://git.open-mesh.org/linux-merge
David S. Miller [Wed, 6 Nov 2019 02:33:05 +0000 (18:33 -0800)]
Merge tag 'batadv-next-for-davem-20191105' of git://git.open-mesh.org/linux-merge

Simon Wunderlich says:

====================
This feature/cleanup patchset includes the following patches:

 - bump version strings, by Simon Wunderlich

 - Simplify batadv_v_ogm_aggr_list_free using skb_queue_purge,
   by Christophe Jaillet

 - Replace aggr_list_lock with lock free skb handlers,
   by Christophe Jaillet

 - explicitly mark fallthrough cases, by Sven Eckelmann

 - Drop lockdep.h include from soft-interface.c, by Sven Eckelmann
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
5 years agor8152: Add macpassthru support for ThinkPad Thunderbolt 3 Dock Gen 2
Kai-Heng Feng [Tue, 5 Nov 2019 11:24:52 +0000 (19:24 +0800)]
r8152: Add macpassthru support for ThinkPad Thunderbolt 3 Dock Gen 2

ThinkPad Thunderbolt 3 Dock Gen 2 is another docking station that uses
RTL8153 based USB ethernet.

The device supports macpassthru, but it failed to pass the test of -AD,
-BND and -BD. Simply bypass these tests since the device supports this
feature just fine.

Also the ACPI objects have some differences between Dell's and Lenovo's,
so make those ACPI infos no longer hardcoded.

BugLink: https://bugs.launchpad.net/bugs/1827961
Signed-off-by: Kai-Heng Feng <kai.heng.feng@canonical.com>
Acked-by: Hayes Wang <hayeswang@realtek.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
5 years agocxgb4: Add pci reset handler
Vishal Kulkarni [Tue, 5 Nov 2019 06:19:15 +0000 (11:49 +0530)]
cxgb4: Add pci reset handler

This patch implements reset_prepare and reset_done, which are used
for handling FLR.

Signed-off-by: Vishal Kulkarni <vishal@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
5 years agoMerge branch 'bnx2x-cnic-Enable-Multi-Cos'
David S. Miller [Wed, 6 Nov 2019 02:25:14 +0000 (18:25 -0800)]
Merge branch 'bnx2x-cnic-Enable-Multi-Cos'

Sudarsana Reddy Kalluru says:

====================
bnx2x/cnic: Enable Multi-Cos.

The patch series enables Multi-cos feature in the driver. This require
the use of new firmware 7.13.15.0.
Patch (1) adds driver changes to use new FW.
Patches (2) - (3) enables multi-cos functionality in bnx2x driver.
Patch (4) adds cnic driver change as required by new FW.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
5 years agocnic: Set fp_hsi_ver as part of CLIENT_SETUP ramrod
Manish Rangankar [Tue, 5 Nov 2019 05:51:12 +0000 (21:51 -0800)]
cnic: Set fp_hsi_ver as part of CLIENT_SETUP ramrod

The new FW has added extra validation for HSI version to
make FW backward compatible with older VF drivers. Hence
set fp_hsi_ver to Fast Path HSI version of the FW in use.

Signed-off-by: Manish Rangankar <mrangankar@marvell.com>
Signed-off-by: Nilesh Javali <njavali@marvell.com>
Signed-off-by: Manish Chopra <manishc@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
5 years agobnx2x: Fix PF-VF communication over multi-cos queues.
Manish Chopra [Tue, 5 Nov 2019 05:51:11 +0000 (21:51 -0800)]
bnx2x: Fix PF-VF communication over multi-cos queues.

PF driver doesn't enable tx-switching for all cos queues/clients,
which causes packets drop from PF to VF. Fix this by enabling
tx-switching on all cos queues/clients.

Signed-off-by: Manish Chopra <manishc@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
5 years agobnx2x: Enable Multi-Cos feature.
Sudarsana Reddy Kalluru [Tue, 5 Nov 2019 05:51:10 +0000 (21:51 -0800)]
bnx2x: Enable Multi-Cos feature.

FW version 7.13.15 addresses the issue in Multi-cos implementation.
This patch re-enables the Multi-Cos support in the driver.

Fixes: d1f0b5dce8fd ("bnx2x: Disable multi-cos feature.")
Signed-off-by: Sudarsana Reddy Kalluru <skalluru@marvell.com>
Signed-off-by: Ariel Elior <aelior@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
5 years agobnx2x: Utilize FW 7.13.15.0.
Sudarsana Reddy Kalluru [Tue, 5 Nov 2019 05:51:09 +0000 (21:51 -0800)]
bnx2x: Utilize FW 7.13.15.0.

Commit 97a27d6d6e8d "bnx2x: Add FW 7.13.15.0" added said .bin FW to
linux-firmware tree. This FW addresses few important issues in the earlier
FW release.
This patch incorporates FW 7.13.15.0 in the bnx2x driver.

Signed-off-by: Sudarsana Reddy Kalluru <skalluru@marvell.com>
Signed-off-by: Ariel Elior <aelior@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
5 years agonet: ethernet: emac: Fix phy mode type
Andrew Lunn [Tue, 5 Nov 2019 17:53:23 +0000 (18:53 +0100)]
net: ethernet: emac: Fix phy mode type

Pass a phy_interface_t to of_get_phy_mode(), by changing the type of
phy_mode in the device structure. This then requires that
zmii_attach() is also changes, since it takes a pointer to phy_mode.

Fixes: 0c65b2b90d13 ("net: of_get_phy_mode: Change API to solve int/unit warnings")
Reported-by: kbuild test robot <lkp@intel.com>
Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
5 years agoMerge branch 'net_sched-convert-packet-counters-to-64bit'
David S. Miller [Wed, 6 Nov 2019 02:20:55 +0000 (18:20 -0800)]
Merge branch 'net_sched-convert-packet-counters-to-64bit'

Eric Dumazet says:

====================
net_sched: convert packet counters to 64bit

This small patch series add 64bit support for packet counts.

Fact that the counters were still 32bit has been quite painful.

tc -s -d qd sh dev eth0 | head -3
qdisc mq 1: root
 Sent 665706335338 bytes 6526520373 pkt (dropped 2441, overlimits 0 requeues 91)
 backlog 0b 0p requeues 91
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
5 years agonet_sched: add TCA_STATS_PKT64 attribute
Eric Dumazet [Tue, 5 Nov 2019 03:13:15 +0000 (19:13 -0800)]
net_sched: add TCA_STATS_PKT64 attribute

Now the kernel uses 64bit packet counters in scheduler layer,
we want to export these counters to user space.

Instead risking breaking user space by adding fields
to struct gnet_stats_basic, add a new TCA_STATS_PKT64.

Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
5 years agonet_sched: extend packet counter to 64bit
Eric Dumazet [Tue, 5 Nov 2019 03:13:14 +0000 (19:13 -0800)]
net_sched: extend packet counter to 64bit

After this change, qdisc packet counter is no longer
a 32bit quantity. We still export 32bit values to user.

Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
5 years agonet_sched: do not export gnet_stats_basic_packed to uapi
Eric Dumazet [Tue, 5 Nov 2019 03:13:13 +0000 (19:13 -0800)]
net_sched: do not export gnet_stats_basic_packed to uapi

gnet_stats_basic_packed was really meant to be private kernel structure.

If this proves to be a problem, we will have to rename the in-kernel
version.

Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
5 years agoMerge branch 'mv88e6xxx-ATU-occupancy-as-devlink-resource'
David S. Miller [Wed, 6 Nov 2019 02:09:45 +0000 (18:09 -0800)]
Merge branch 'mv88e6xxx-ATU-occupancy-as-devlink-resource'

Andrew Lunn says:

====================
mv88e6xxx ATU occupancy as devlink resource

This patchset add generic support to DSA for devlink resources. The
Marvell switch Address Translation Unit occupancy is then exported as
a resource. In order to do this, the number of ATU entries is added to
the per switch info structure. Helpers are added, and then the
resource itself is then added.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
5 years agonet: dsa: mv88e6xxx: Add ATU occupancy via devlink resources
Andrew Lunn [Tue, 5 Nov 2019 00:13:01 +0000 (01:13 +0100)]
net: dsa: mv88e6xxx: Add ATU occupancy via devlink resources

The ATU can report how many entries it contains. It does this per bin,
there being 4 bins in total. Export the ATU as a devlink resource, and
provide a method the needed callback to get the resource occupancy.

Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Acked-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
5 years agonet: dsa: mv88e6xxx: global1_atu: Add helper for get next
Andrew Lunn [Tue, 5 Nov 2019 00:13:00 +0000 (01:13 +0100)]
net: dsa: mv88e6xxx: global1_atu: Add helper for get next

When retrieving the ATU statistics, and ATU get next has to be
performed to trigger the ATU to collect the statistics. Export a
helper from global1_atu to perform this.

Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
5 years agonet: dsa: mv88e6xxx: global2: Expose ATU stats register
Andrew Lunn [Tue, 5 Nov 2019 00:12:59 +0000 (01:12 +0100)]
net: dsa: mv88e6xxx: global2: Expose ATU stats register

Add helpers to set/get the ATU statistics register.

Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
5 years agonet: dsa: mv88e6xxx: Add number of MACs in the ATU
Andrew Lunn [Tue, 5 Nov 2019 00:12:58 +0000 (01:12 +0100)]
net: dsa: mv88e6xxx: Add number of MACs in the ATU

For each supported switch, add an entry to the info structure for the
number of MACs which can be stored in the ATU. This will later be used
to export the ATU as a devlink resource, and indicate its occupancy,
how full the ATU is.

Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
5 years agonet: dsa: Add support for devlink resources
Andrew Lunn [Tue, 5 Nov 2019 00:12:57 +0000 (01:12 +0100)]
net: dsa: Add support for devlink resources

Add wrappers around the devlink resource API, so that DSA drivers can
register and unregister devlink resources.

Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Acked-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
5 years agoMerge branch 'net-dsa-bcm_sf2-Add-support-for-optional-reset-controller-line'
David S. Miller [Wed, 6 Nov 2019 02:06:38 +0000 (18:06 -0800)]
Merge branch 'net-dsa-bcm_sf2-Add-support-for-optional-reset-controller-line'

Florian Fainelli says:

====================
net: dsa: bcm_sf2: Add support for optional reset controller line

This patch series definest the optional reset controller line for the
BCM7445/BCM7278 integrated Ethernet switches and updates the driver to
drive that reset line in lieu of the internal watchdog based reset since
it does not work on BCM7278.

Changes in v2:
- make the reset_control_assert() conditional to BCM7278 in the remove
  function as well
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
5 years agonet: dsa: bcm_sf2: Add support for optional reset controller line
Florian Fainelli [Mon, 4 Nov 2019 21:51:39 +0000 (13:51 -0800)]
net: dsa: bcm_sf2: Add support for optional reset controller line

Grab an optional and exclusive reset controller line for the switch and
manage it during probe/remove functions accordingly. For 7278 devices we
change bcm_sf2_sw_rst() to use the reset controller line since the
WATCHDOG_CTRL register does not reset the switch contrary to stated
documentation.

Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
5 years agodt-bindings: net: Describe BCM7445 switch reset property
Florian Fainelli [Mon, 4 Nov 2019 21:51:38 +0000 (13:51 -0800)]
dt-bindings: net: Describe BCM7445 switch reset property

The BCM7445/BCM7278 built-in Ethernet switch have an optional reset line
to the SoC's reset controller, describe the 'resets' and 'reset-names'
properties as optional.

Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
5 years agoChange in Openvswitch to support MPLS label depth of 3 in ingress direction
Martin Varghese [Mon, 4 Nov 2019 01:57:44 +0000 (07:27 +0530)]
Change in Openvswitch to support MPLS label depth of 3 in ingress direction

The openvswitch was supporting a MPLS label depth of 1 in the ingress
direction though the userspace OVS supports a max depth of 3 labels.
This change enables openvswitch module to support a max depth of
3 labels in the ingress.

Signed-off-by: Martin Varghese <martin.varghese@nokia.com>
Acked-by: Pravin B Shelar <pshelar@ovn.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
5 years agonet: hns3: remove unused macros
Colin Ian King [Sun, 3 Nov 2019 13:15:38 +0000 (13:15 +0000)]
net: hns3: remove unused macros

The macros HCLGE_MPF_ENBALE and HCLGEVF_MPF_ENBALE are defined but never
used.  I was going to fix the spelling mistake "ENBALE" -> "ENABLE" but
found these macros are not used, so they can be removed.

Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
5 years agovsock: Simplify '__vsock_release()'
Christophe JAILLET [Sun, 3 Nov 2019 06:11:11 +0000 (07:11 +0100)]
vsock: Simplify '__vsock_release()'

Use 'skb_queue_purge()' instead of re-implementing it.

Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Reviewed-by: Stefano Garzarella <sgarzare@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
5 years agonet: dsa: Fix use after free in dsa_switch_remove()
Florian Fainelli [Sun, 3 Nov 2019 03:13:26 +0000 (20:13 -0700)]
net: dsa: Fix use after free in dsa_switch_remove()

The order in which the ports are deleted from the list and freed and the
call to dsa_switch_remove() is done is reversed, which leads to an
use after free condition. Reverse the two: first tear down the ports and
switch from the fabric, then free the ports associated with that switch
fabric.

Fixes: 05f294a85235 ("net: dsa: allocate ports on touch")
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Reviewed-by: Vivien Didelot <vivien.didelot@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
5 years agotc-testing: added tests with cookie for mpls TC action
Roman Mashak [Sat, 2 Nov 2019 22:25:51 +0000 (18:25 -0400)]
tc-testing: added tests with cookie for mpls TC action

Signed-off-by: Roman Mashak <mrv@mojatatu.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
5 years agoMerge branch 'icmp-move-duplicate-code-in-helper-functions'
David S. Miller [Tue, 5 Nov 2019 22:03:11 +0000 (14:03 -0800)]
Merge branch 'icmp-move-duplicate-code-in-helper-functions'

Matteo Croce says:

====================
icmp: move duplicate code in helper functions

Remove some duplicate code by moving it in two helper functions.
First patch adds the helpers, the second one uses it.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
5 years agoicmp: remove duplicate code
Matteo Croce [Sat, 2 Nov 2019 00:12:04 +0000 (01:12 +0100)]
icmp: remove duplicate code

The same code which recognizes ICMP error packets is duplicated several
times. Use the icmp_is_err() and icmpv6_is_err() helpers instead, which
do the same thing.

ip_multipath_l3_keys() and tcf_nat_act() didn't check for all the error types,
assume that they should instead.

Signed-off-by: Matteo Croce <mcroce@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
5 years agoicmp: add helpers to recognize ICMP error packets
Matteo Croce [Sat, 2 Nov 2019 00:12:03 +0000 (01:12 +0100)]
icmp: add helpers to recognize ICMP error packets

Add two helper functions, one for IPv4 and one for IPv6, to recognize
the ICMP packets which are error responses.
This packets are special because they have as payload the original
header of the packet which generated it (RFC 792 says at least 8 bytes,
but Linux actually includes much more than that).

Signed-off-by: Matteo Croce <mcroce@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>