32270 Commits

Author SHA1 Message Date
ccfc569347 mlxsw: spectrum_flower: Do not stop at FLOW_ACTION_VLAN_MANGLE
The handler for FLOW_ACTION_VLAN_MANGLE ends by returning whatever the
lower-level function that it calls returns. If there are more actions lined
up after this action, those are never offloaded. Fix by only bailing out
when the called function returns an error.

Fixes: a150201a70da ("mlxsw: spectrum: Add support for vlan modify TC action")
Signed-off-by: Petr Machata <petrm@mellanox.com>
Reviewed-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-04-06 10:14:00 -07:00
0be0ae1441 mlxsw: spectrum_flower: Do not stop at FLOW_ACTION_PRIORITY
The handler for FLOW_ACTION_PRIORITY ends by returning whatever the
lower-level function that it calls returns. If there are more actions lined
up after this action, those are never offloaded. Fix by only bailing out
when the called function returns an error.

Fixes: 463957e3fbab ("mlxsw: spectrum_flower: Offload FLOW_ACTION_PRIORITY")
Signed-off-by: Petr Machata <petrm@mellanox.com>
Reviewed-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-04-06 10:14:00 -07:00
95099c569a r8169: change back SG and TSO to be disabled by default
There has been a number of reports that using SG/TSO on different chip
versions results in tx timeouts. However for a lot of people SG/TSO
works fine. Therefore disable both features by default, but allow users
to enable them. Use at own risk!

Fixes: 93681cd7d94f ("r8169: enable HW csum and TSO")
Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-04-06 10:09:58 -07:00
3e1221acf6 net: stmmac: dwmac1000: fix out-of-bounds mac address reg setting
Commit 9463c4455900 ("net: stmmac: dwmac1000: Clear unused address
entries") cleared the unused mac address entries, but introduced an
out-of bounds mac address register programming bug -- After setting
the secondary unicast mac addresses, the "reg" value has reached
netdev_uc_count() + 1, thus we should only clear address entries
if (addr < perfect_addr_number)

Fixes: 9463c4455900 ("net: stmmac: dwmac1000: Clear unused address entries")
Signed-off-by: Jisheng Zhang <Jisheng.Zhang@synaptics.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-04-03 15:58:54 -07:00
468c2a1002 mlxsw: spectrum_trap: fix unintention integer overflow on left shift
Shifting the integer value 1 is evaluated using 32-bit
arithmetic and then used in an expression that expects a 64-bit
value, so there is potentially an integer overflow. Fix this
by using the BIT_ULL macro to perform the shift and avoid the
overflow.

Addresses-Coverity: ("Unintentional integer overflow")
Fixes: 13f2e64b94ea ("mlxsw: spectrum_trap: Add devlink-trap policer support")
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Reviewed-by: Ido Schimmel <idosch@mellanox.com>
Tested-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-04-02 18:00:01 -07:00
21f64e72e7 net: stmmac: xgmac: Fix VLAN register handling
Commit 907a076881f1, forgot that we need to clear old values of
XGMAC_VLAN_TAG register when we switch from VLAN perfect matching to
HASH matching.

Fix it.

Fixes: 907a076881f1 ("net: stmmac: xgmac: fix incorrect XGMAC_VLAN_TAG register writting")
Signed-off-by: Jose Abreu <Jose.Abreu@synopsys.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-04-02 07:04:45 -07:00
a7d40cbb24 net: cavium: Fix build errors due to 'imply CAVIUM_PTP'
If CAVIUM_PTP is m and THUNDER_NIC_VF is y, build fails:

drivers/net/ethernet/cavium/thunder/nicvf_main.o: In function 'nicvf_remove':
nicvf_main.c:(.text+0x1f0): undefined reference to 'cavium_ptp_put'
drivers/net/ethernet/cavium/thunder/nicvf_main.o: In function `nicvf_probe':
nicvf_main.c:(.text+0x557c): undefined reference to 'cavium_ptp_get'

THUNDER_NIC_VF imply CAVIUM_PTP, which allow the config now,
Use IS_REACHABLE() to avoid the vmlinux link error for this case.

Reported-by: Hulk Robot <hulkci@huawei.com>
Fixes: def2fbffe62c ("kconfig: allow symbols implied by y to become m")
Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-04-02 07:01:31 -07:00
8628754371 net: atlantic: fix missing | operator when assigning rec->llc
rec->llc is currently being assigned twice, once with the lower 8 bits
from packed_record[8] and then re-assigned afterwards with data from
packed_record[9].  This looks like a type, I believe the second assignment
should be using the |= operator rather than a direct assignment.

Addresses-Coverity: ("Unused value")
Fixes: b8f8a0b7b5cb ("net: atlantic: MACSec ingress offload HW bindings")
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Acked-by: Igor Russkikh <irusskikh@marell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-04-02 06:50:59 -07:00
2abb579238 net: qualcomm: rmnet: Allow configuration updates to existing devices
This allows the changelink operation to succeed if the mux_id was
specified as an argument. Note that the mux_id must match the
existing mux_id of the rmnet device or should be an unused mux_id.

Fixes: 1dc49e9d164c ("net: rmnet: do not allow to change mux id if mux id is duplicated")
Reported-and-tested-by: Alex Elder <elder@linaro.org>
Signed-off-by: Sean Tranchetti <stranche@codeaurora.org>
Signed-off-by: Subash Abhinov Kasiviswanathan <subashab@codeaurora.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-04-02 06:50:04 -07:00
dd6a4998e6 net: stmmac: Fix VLAN filtering when HW does not support it
If we don't have any filters available we can't rely upon the return
code of stmmac_add_hw_vlan_rx_fltr() / stmmac_del_hw_vlan_rx_fltr(). Add
a check for this.

Fixes: ed64639bc1e0 ("net: stmmac: Add support for VLAN Rx filtering")
Signed-off-by: Jose Abreu <Jose.Abreu@synopsys.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-04-01 11:25:03 -07:00
cc213f8c47 bnx2x: correct a comment mistake in grammar
It is not right in grammar to spell "Its not". The right one is "It's
not".

And this line is also over 80 characters. So I broke it into two lines
as well in order to make that line not be more than 80 characters.

Signed-off-by: Hu Haowen <xianfengting221@163.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-04-01 11:24:17 -07:00
e6b45ee790 net/faraday: fix grammar in function ftgmac100_setup_clk() in ftgmac100.c
"its not" is wrong. The words should be "it's not".

Signed-off-by: Hu Haowen <xianfengting221@163.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-04-01 11:23:45 -07:00
cef8dac96b cxgb4: free MQPRIO resources in shutdown path
Perform missing MQPRIO resource cleanup in PCI shutdown path. Also,
fix MQPRIO MSIX bitmap leak in resource cleanup.

Fixes: b1396c2bd675 ("cxgb4: parse and configure TC-MQPRIO offload")
Signed-off-by: Rahul Lakkireddy <rahul.lakkireddy@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-04-01 11:16:43 -07:00
41aa8561ca cxgb4: fix MPS index overwrite when setting MAC address
cxgb4_update_mac_filt() earlier requests firmware to add a new MAC
address into MPS TCAM. The MPS TCAM index returned by firmware is
stored in pi->xact_addr_filt. However, the saved MPS TCAM index gets
overwritten again with the return value of cxgb4_update_mac_filt(),
which is wrong.

When trying to update to another MAC address later, the wrong MPS TCAM
index is sent to firmware, which causes firmware to return error,
because it's not the same MPS TCAM index that firmware had sent
earlier to driver.

So, fix by removing the wrong overwrite being done after call to
cxgb4_update_mac_filt().

Fixes: 3f8cfd0d95e6 ("cxgb4/cxgb4vf: Program hash region for {t4/t4vf}_change_mac()")
Signed-off-by: Herat Ramani <herat@chelsio.com>
Signed-off-by: Rahul Lakkireddy <rahul.lakkireddy@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-04-01 11:15:49 -07:00
29d9f30d4c Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next
Pull networking updates from David Miller:
 "Highlights:

   1) Fix the iwlwifi regression, from Johannes Berg.

   2) Support BSS coloring and 802.11 encapsulation offloading in
      hardware, from John Crispin.

   3) Fix some potential Spectre issues in qtnfmac, from Sergey
      Matyukevich.

   4) Add TTL decrement action to openvswitch, from Matteo Croce.

   5) Allow paralleization through flow_action setup by not taking the
      RTNL mutex, from Vlad Buslov.

   6) A lot of zero-length array to flexible-array conversions, from
      Gustavo A. R. Silva.

   7) Align XDP statistics names across several drivers for consistency,
      from Lorenzo Bianconi.

   8) Add various pieces of infrastructure for offloading conntrack, and
      make use of it in mlx5 driver, from Paul Blakey.

   9) Allow using listening sockets in BPF sockmap, from Jakub Sitnicki.

  10) Lots of parallelization improvements during configuration changes
      in mlxsw driver, from Ido Schimmel.

  11) Add support to devlink for generic packet traps, which report
      packets dropped during ACL processing. And use them in mlxsw
      driver. From Jiri Pirko.

  12) Support bcmgenet on ACPI, from Jeremy Linton.

  13) Make BPF compatible with RT, from Thomas Gleixnet, Alexei
      Starovoitov, and your's truly.

  14) Support XDP meta-data in virtio_net, from Yuya Kusakabe.

  15) Fix sysfs permissions when network devices change namespaces, from
      Christian Brauner.

  16) Add a flags element to ethtool_ops so that drivers can more simply
      indicate which coalescing parameters they actually support, and
      therefore the generic layer can validate the user's ethtool
      request. Use this in all drivers, from Jakub Kicinski.

  17) Offload FIFO qdisc in mlxsw, from Petr Machata.

  18) Support UDP sockets in sockmap, from Lorenz Bauer.

  19) Fix stretch ACK bugs in several TCP congestion control modules,
      from Pengcheng Yang.

  20) Support virtual functiosn in octeontx2 driver, from Tomasz
      Duszynski.

  21) Add region operations for devlink and use it in ice driver to dump
      NVM contents, from Jacob Keller.

  22) Add support for hw offload of MACSEC, from Antoine Tenart.

  23) Add support for BPF programs that can be attached to LSM hooks,
      from KP Singh.

  24) Support for multiple paths, path managers, and counters in MPTCP.
      From Peter Krystad, Paolo Abeni, Florian Westphal, Davide Caratti,
      and others.

  25) More progress on adding the netlink interface to ethtool, from
      Michal Kubecek"

* git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next: (2121 commits)
  net: ipv6: rpl_iptunnel: Fix potential memory leak in rpl_do_srh_inline
  cxgb4/chcr: nic-tls stats in ethtool
  net: dsa: fix oops while probing Marvell DSA switches
  net/bpfilter: remove superfluous testing message
  net: macb: Fix handling of fixed-link node
  net: dsa: ksz: Select KSZ protocol tag
  netdevsim: dev: Fix memory leak in nsim_dev_take_snapshot_write
  net: stmmac: add EHL 2.5Gbps PCI info and PCI ID
  net: stmmac: add EHL PSE0 & PSE1 1Gbps PCI info and PCI ID
  net: stmmac: create dwmac-intel.c to contain all Intel platform
  net: dsa: bcm_sf2: Support specifying VLAN tag egress rule
  net: dsa: bcm_sf2: Add support for matching VLAN TCI
  net: dsa: bcm_sf2: Move writing of CFP_DATA(5) into slicing functions
  net: dsa: bcm_sf2: Check earlier for FLOW_EXT and FLOW_MAC_EXT
  net: dsa: bcm_sf2: Disable learning for ASP port
  net: dsa: b53: Deny enslaving port 7 for 7278 into a bridge
  net: dsa: b53: Prevent tagged VLAN on port 7 for 7278
  net: dsa: b53: Restore VLAN entries upon (re)configuration
  net: dsa: bcm_sf2: Fix overflow checks
  hv_netvsc: Remove unnecessary round_up for recv_completion_cnt
  ...
2020-03-31 17:29:33 -07:00
a0190431d1 cxgb4/chcr: nic-tls stats in ethtool
Included nic tls statistics in ethtool stats.

Signed-off-by: Rohit Maheshwari <rohitm@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-03-31 10:11:07 -07:00
79540d133e net: macb: Fix handling of fixed-link node
fixed-link nodes are treated as PHY nodes by of_mdiobus_child_is_phy().
We must check if the interface is a fixed-link before looking up for PHY
nodes.

Fixes: 7897b071ac3b ("net: macb: convert to phylink")
Tested-by: Cristian Birsan <cristian.birsan@microchip.com>
Signed-off-by: Codrin Ciubotariu <codrin.ciubotariu@microchip.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-03-31 10:06:27 -07:00
5a470b1a63 Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2020-03-30 20:48:43 -07:00
d63439f575 net: stmmac: add EHL 2.5Gbps PCI info and PCI ID
Add EHL SGMII 2.5Gbps PCI info and PCI ID

Signed-off-by: Voon Weifeng <weifeng.voon@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-03-30 20:10:34 -07:00
67c08ac414 net: stmmac: add EHL PSE0 & PSE1 1Gbps PCI info and PCI ID
Add EHL PSE0/1 RGMII & SGMII 1Gbps PCI info and PCI ID

Signed-off-by: Voon Weifeng <weifeng.voon@intel.com>
Signed-off-by: Ong Boon Leong <boon.leong.ong@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-03-30 20:10:34 -07:00
58da0cfa6c net: stmmac: create dwmac-intel.c to contain all Intel platform
As stmmac_pci.c file is getting bigger and more complex, it is reasonable
to separate all the Intel specific dwmac pci device to a different file.
This move includes Intel Quark, TGL and EHL. A new kernel config
CONFIG_DWMAC_INTEL is introduced and depends on X86. For this initial
patch, all the necessary function such as probe() and exit() are identical
besides the function name.

Signed-off-by: Voon Weifeng <weifeng.voon@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-03-30 20:10:34 -07:00
39defcbba0 mlxsw: spectrum_trap: Add support for setting of packet trap group parameters
Implement support for setting of packet trap group parameters by
invoking the trap_group_init() callback with the new parameters.

Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Reviewed-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-03-30 17:54:59 -07:00
d12d846821 mlxsw: spectrum_trap: Switch to use correct packet trap group
Some packet traps are currently exposed to user space as being member of
"l3_drops" trap group, but internally they are member of a different
group.

Switch these traps to use the correct group so that they are all subject
to the same policer, as exposed to user space.

Set the trap priority of packets trapped due to loopback error during
routing to the lowest priority. Such packets are not routed again by the
kernel and therefore should not mask other traps (e.g., host miss) that
should be routed.

Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Reviewed-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-03-30 17:54:59 -07:00
bc82521e3b mlxsw: spectrum_trap: Do not initialize dedicated discard policer
The policer is now initialized as part of the registration with devlink,
so there is no need to initialize it before the registration.

Remove the initialization.

Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Reviewed-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-03-30 17:54:59 -07:00
13f2e64b94 mlxsw: spectrum_trap: Add devlink-trap policer support
Register supported packet trap policers with devlink and implement
callbacks to change their parameters and read their counters.

Prevent user space from passing invalid policer parameters down to the
device by checking their validity and communicating the failure via an
appropriate extack message.

v2:
* Remove the max/min validity checks from __mlxsw_sp_trap_policer_set()

Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Reviewed-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-03-30 17:54:59 -07:00
4561705b17 mlxsw: spectrum_trap: Prepare policers for registration with devlink
Prepare an array of policer IDs to register with devlink and their
associated parameters.

The array is composed from both policers that are currently bound to
exposed trap groups and policers that are not bound to any trap group.

v2:
* Provide max/min rate/burst size when registering policers

Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Reviewed-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-03-30 17:54:59 -07:00
03484e49e7 mlxsw: spectrum: Track used packet trap policer IDs
During initialization the driver configures various packet trap groups
and binds policers to them.

Currently, most of these groups are not exposed to user space and
therefore their policers should not be exposed as well. Otherwise, user
space will be able to alter policer parameters without knowing which
packet traps are policed by the policer.

Use a bitmap to track the used policer IDs so that these policers will
not be registered with devlink in a subsequent patch.

Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Reviewed-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-03-30 17:54:59 -07:00
2b84d7c3f6 mlxsw: reg: Extend QPCR register
The QoS Policer Configuration Register (QPCR) is used to configure
hardware policers. Extend this register with following fields and
defines which will be used by subsequent patches:

1. Violate counter: reads number of packets dropped by the policer
2. Clear counter: to ensure we start counting from 0
3. Rate and burst size limits

Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Reviewed-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-03-30 17:54:59 -07:00
f9f54392d2 devlink: Add packet trap group parameters support
Packet trap groups are used to aggregate logically related packet traps.
Currently, these groups allow user space to batch operations such as
setting the trap action of all member traps.

In order to prevent the CPU from being overwhelmed by too many trapped
packets, it is desirable to bind a packet trap policer to these groups.
For example, to limit all the packets that encountered an exception
during routing to 10Kpps.

Allow device drivers to bind default packet trap policers to packet trap
groups when the latter are registered with devlink.

The next patch will enable user space to change this default binding.

Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Reviewed-by: Jiri Pirko <jiri@mellanox.com>
Reviewed-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-03-30 17:54:58 -07:00
49835c15a5 Power management updates for 5.7-rc1
- Clean up and rework the PM QoS API to simplify the code and
    reduce the size of it (Rafael Wysocki).
 
  - Fix a suspend-to-idle wakeup regression on Dell XPS13 9370
    and similar platforms where the USB plug/unplug events are
    handled by the EC (Rafael Wysocki).
 
  - CLean up the intel_idle and PSCI cpuidle drivers (Rafael Wysocki,
    Ulf Hansson).
 
  - Extend the haltpoll cpuidle driver so that it can be forced to
    run on some systems where it refused to load (Maciej Szmigiero).
 
  - Convert several cpufreq documents to the .rst format and move the
    legacy driver documentation into one common file (Mauro Carvalho
    Chehab, Rafael Wysocki).
 
  - Update several cpufreq drivers:
 
    * Extend and fix the imx-cpufreq-dt driver (Anson Huang).
 
    * Improve the -EPROBE_DEFER handling and fix unwanted CPU
      overclocking on i.MX6ULL in imx6q-cpufreq (Anson Huang,
      Christoph Niedermaier).
 
    * Add support for Krait based SoCs to the qcom driver (Ansuel
      Smith).
 
    * Add support for OPP_PLUS to ti-cpufreq (Lokesh Vutla).
 
    * Add platform specific intermediate callbacks support to
      cpufreq-dt and update the imx6q driver (Peng Fan).
 
    * Simplify and consolidate some pieces of the intel_pstate driver
      and update its documentation (Rafael Wysocki, Alex Hung).
 
  - Fix several devfreq issues:
 
    * Remove unneeded extern keyword from a devfreq header file
      and use the DEVFREQ_GOV_UPDATE_INTERNAL event name instead of
      DEVFREQ_GOV_INTERNAL (Chanwoo Choi).
 
    * Fix the handling of dev_pm_qos_remove_request() result (Leonard
      Crestez).
 
    * Use constant name for userspace governor (Pierre Kuo).
 
    * Get rid of doc warnings and fix a typo (Christophe JAILLET).
 
  - Use built-in RCU list checking in some places in the PM core to
    avoid false-positive RCU usage warnings (Madhuparna Bhowmik).
 
  - Add explicit READ_ONCE()/WRITE_ONCE() annotations to low-level
    PM QoS routines (Qian Cai).
 
  - Fix removal of wakeup sources to avoid NULL pointer dereferences
    in a corner case (Neeraj Upadhyay).
 
  - Clean up the handling of hibernate compat ioctls and fix the
    related documentation (Eric Biggers).
 
  - Update the idle_inject power capping driver to use variable-length
    arrays instead of zero-length arrays (Gustavo Silva).
 
  - Fix list format in a PM QoS document (Randy Dunlap).
 
  - Make the cpufreq stats module use scnprintf() to avoid potential
    buffer overflows (Takashi Iwai).
 
  - Add pm_runtime_get_if_active() to PM-runtime API (Sakari Ailus).
 
  - Allow no domain-idle-states DT property in generic PM domains (Ulf
    Hansson).
 
  - Fix a broken y-axis scale in the intel_pstate_tracer utility (Doug
    Smythies).
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Merge tag 'pm-5.7-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm

Pull power management updates from Rafael Wysocki:
 "These clean up and rework the PM QoS API, address a suspend-to-idle
  wakeup regression on some ACPI-based platforms, clean up and extend a
  few cpuidle drivers, update multiple cpufreq drivers and cpufreq
  documentation, and fix a number of issues in devfreq and several other
  things all over.

  Specifics:

   - Clean up and rework the PM QoS API to simplify the code and reduce
     the size of it (Rafael Wysocki).

   - Fix a suspend-to-idle wakeup regression on Dell XPS13 9370 and
     similar platforms where the USB plug/unplug events are handled by
     the EC (Rafael Wysocki).

   - CLean up the intel_idle and PSCI cpuidle drivers (Rafael Wysocki,
     Ulf Hansson).

   - Extend the haltpoll cpuidle driver so that it can be forced to run
     on some systems where it refused to load (Maciej Szmigiero).

   - Convert several cpufreq documents to the .rst format and move the
     legacy driver documentation into one common file (Mauro Carvalho
     Chehab, Rafael Wysocki).

   - Update several cpufreq drivers:

        * Extend and fix the imx-cpufreq-dt driver (Anson Huang).

        * Improve the -EPROBE_DEFER handling and fix unwanted CPU
          overclocking on i.MX6ULL in imx6q-cpufreq (Anson Huang,
          Christoph Niedermaier).

        * Add support for Krait based SoCs to the qcom driver (Ansuel
          Smith).

        * Add support for OPP_PLUS to ti-cpufreq (Lokesh Vutla).

        * Add platform specific intermediate callbacks support to
          cpufreq-dt and update the imx6q driver (Peng Fan).

        * Simplify and consolidate some pieces of the intel_pstate
          driver and update its documentation (Rafael Wysocki, Alex
          Hung).

   - Fix several devfreq issues:

        * Remove unneeded extern keyword from a devfreq header file and
          use the DEVFREQ_GOV_UPDATE_INTERNAL event name instead of
          DEVFREQ_GOV_INTERNAL (Chanwoo Choi).

        * Fix the handling of dev_pm_qos_remove_request() result
          (Leonard Crestez).

        * Use constant name for userspace governor (Pierre Kuo).

        * Get rid of doc warnings and fix a typo (Christophe JAILLET).

   - Use built-in RCU list checking in some places in the PM core to
     avoid false-positive RCU usage warnings (Madhuparna Bhowmik).

   - Add explicit READ_ONCE()/WRITE_ONCE() annotations to low-level PM
     QoS routines (Qian Cai).

   - Fix removal of wakeup sources to avoid NULL pointer dereferences in
     a corner case (Neeraj Upadhyay).

   - Clean up the handling of hibernate compat ioctls and fix the
     related documentation (Eric Biggers).

   - Update the idle_inject power capping driver to use variable-length
     arrays instead of zero-length arrays (Gustavo Silva).

   - Fix list format in a PM QoS document (Randy Dunlap).

   - Make the cpufreq stats module use scnprintf() to avoid potential
     buffer overflows (Takashi Iwai).

   - Add pm_runtime_get_if_active() to PM-runtime API (Sakari Ailus).

   - Allow no domain-idle-states DT property in generic PM domains (Ulf
     Hansson).

   - Fix a broken y-axis scale in the intel_pstate_tracer utility (Doug
     Smythies)"

* tag 'pm-5.7-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (78 commits)
  cpufreq: intel_pstate: Simplify intel_pstate_cpu_init()
  tools/power/x86/intel_pstate_tracer: fix a broken y-axis scale
  ACPI: PM: s2idle: Refine active GPEs check
  ACPICA: Allow acpi_any_gpe_status_set() to skip one GPE
  PM: sleep: wakeup: Skip wakeup_source_sysfs_remove() if device is not there
  PM / devfreq: Get rid of some doc warnings
  PM / devfreq: Fix handling dev_pm_qos_remove_request result
  PM / devfreq: Fix a typo in a comment
  PM / devfreq: Change to DEVFREQ_GOV_UPDATE_INTERVAL event name
  PM / devfreq: Remove unneeded extern keyword
  PM / devfreq: Use constant name of userspace governor
  ACPI: PM: s2idle: Fix comment in acpi_s2idle_prepare_late()
  cpufreq: qcom: Add support for krait based socs
  cpufreq: imx6q-cpufreq: Improve the logic of -EPROBE_DEFER handling
  cpufreq: Use scnprintf() for avoiding potential buffer overflow
  cpuidle: psci: Split psci_dt_cpu_init_idle()
  PM / Domains: Allow no domain-idle-states DT property in genpd when parsing
  PM / hibernate: Remove unnecessary compat ioctl overrides
  PM: hibernate: fix docs for ioctls that return loff_t via pointer
  Documentation: intel_pstate: update links for references
  ...
2020-03-30 15:05:01 -07:00
b8447abc4c r8169: factor out rtl8169_tx_map
Factor out mapping the tx skb to a new function rtl8169_tx_map(). This
allows to remove redundancies, and rtl8169_get_txd_opts1() has only
one user left, so it can be inlined.
As a result rtl8169_xmit_frags() is significantly simplified, and in
rtl8169_start_xmit() the code is simplified and better readable.
No functional change intended.

Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-03-30 11:50:20 -07:00
8063f761cd qed: Fix use after free in qed_chain_free
The qed_chain data structure was modified in
commit 1a4a69751f4d ("qed: Chain support for external PBL") to support
receiving an external pbl (due to iWARP FW requirements).
The pages pointed to by the pbl are allocated in qed_chain_alloc
and their virtual address are stored in an virtual addresses array to
enable accessing and freeing the data. The physical addresses however
weren't stored and were accessed directly from the external-pbl
during free.

Destroy-qp flow, leads to freeing the external pbl before the chain is
freed, when the chain is freed it tries accessing the already freed
external pbl, leading to a use-after-free. Therefore we need to store
the physical addresses in additional to the virtual addresses in a
new data structure.

Fixes: 1a4a69751f4d ("qed: Chain support for external PBL")
Signed-off-by: Michal Kalderon <mkalderon@marvell.com>
Signed-off-by: Yuval Bason <ybason@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-03-30 11:45:18 -07:00
4abc3c0481 r8169: improve handling of TD_MSS_MAX
If the mtu is greater than TD_MSS_MAX, then TSO is disabled, see
rtl8169_fix_features(). Because mss is less than mtu, we can't have
the case mss > TD_MSS_MAX in the TSO path.

Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-03-30 11:44:53 -07:00
fc411eaac8 net: dsa: felix: add port policers
This patch is a trivial passthrough towards the ocelot library, which
support port policers since commit 2c1d029a017f ("net: mscc: ocelot:
Implement port policers via tc command").

Some data structure conversion between the DSA core and the Ocelot
library is necessary, for policer parameters.

Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-03-30 11:44:00 -07:00
c9a7fe1238 net: mscc: ocelot: add action of police on vcap_is2
Ocelot has 384 policers that can be allocated to ingress ports,
QoS classes per port, and VCAP IS2 entries. ocelot_police.c
supports to set policers which can be allocated to police action
of VCAP IS2. We allocate policers from maximum pol_id, and
decrease the pol_id when add a new vcap_is2 entry which is
police action.

Signed-off-by: Xiaoliang Yang <xiaoliang.yang_1@nxp.com>
Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-03-30 11:44:00 -07:00
c672412f61 ionic: remove lifs on fw reset
When the FW RESET event comes to the driver from the firmware,
or the fw_status goes to 0 (stopped) or to 0xff (no PCI
connection), then shut down the driver activity.  This event
signals a FW upgrade where we need to quiesce all operations and
wait for the FW to restart.  The FW will continue the update
process once it sees all the LIFs are reset.  When the update
process is done it will set the fw_status back to RUNNING.
Meanwhile, the heartbeat check continues and when the fw_status
is seen as set to running we can restart the driver operations.

Signed-off-by: Shannon Nelson <snelson@pensando.io>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-03-30 11:40:50 -07:00
49d3b49367 ionic: disable the queues on link down
When the link goes down, we need to disable the queues on the
NIC in addition to stopping the netdev stack.  This lets the
FW know that the driver has stopped queue activity, and then
the FW can do internal reconfiguration work, whether actually
Link related, or for other internal FW needs.  To do this,
we pull out the queue enable and disable from ionic_open()
and ionic_stop() so they can be used by other routines.

To help keep things sane, we swap the queue enables so that
the rx queue and its napi are enabled before the tx queue
which rides on the rx queues napi.

We also drop the ionic_lif_quiesce() as it doesn't do anything
more than what the queue disable has already taken care of.

Signed-off-by: Shannon Nelson <snelson@pensando.io>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-03-30 11:40:50 -07:00
d5eddde5ec ionic: check for queues before deleting
Make sure the queue structures exist before trying
to delete them.  This addresses a couple of error
recovery issues.

Signed-off-by: Shannon Nelson <snelson@pensando.io>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-03-30 11:40:50 -07:00
f9c00e2cf2 ionic: clean tx queue of unfinished requests
Clean out tx requests that didn't get finished before
shutting down the queue.

Signed-off-by: Shannon Nelson <snelson@pensando.io>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-03-30 11:40:50 -07:00
0b0641009b ionic: move irq request to qcq alloc
Move the irq request and free out of the qcq_init and deinit
and into the alloc and free routines where they belong for
better resource management.

Signed-off-by: Shannon Nelson <snelson@pensando.io>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-03-30 11:40:50 -07:00
2a8c2c1a02 ionic: move debugfs add/delete to match alloc/free
Move the qcq debugfs add to the queue alloc, and likewise move
the debugfs delete to the queue free.  The LIF debugfs add
also needs to be moved, but the del is already in the LIF free.

Signed-off-by: Shannon Nelson <snelson@pensando.io>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-03-30 11:40:50 -07:00
987c0871e8 ionic: check for linkup in watchdog
Add a link_status_check to the heartbeat watchdog.

Signed-off-by: Shannon Nelson <snelson@pensando.io>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-03-30 11:40:50 -07:00
aa47b540b7 ionic: decouple link message from netdev state
Rearrange the link_up/link_down messages so that we announce
link up when we first notice that the link is up when the
driver loads, and decouple the link_up/link_down messages from
the UP and DOWN netdev state.

Signed-off-by: Shannon Nelson <snelson@pensando.io>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-03-30 11:40:49 -07:00
ea315c5507 mlxsw: spectrum_ptp: Fix build warnings
Cited commit extended the enums 'hwtstamp_tx_types' and
'hwtstamp_rx_filters' with values that were not accounted for in the
switch statements, resulting in the build warnings below.

Fix by adding a default case.

drivers/net/ethernet/mellanox/mlxsw/spectrum_ptp.c: In function ‘mlxsw_sp_ptp_get_message_types’:
drivers/net/ethernet/mellanox/mlxsw/spectrum_ptp.c:915:2: warning: enumeration value ‘__HWTSTAMP_TX_CNT’ not handled in switch [-Wswitch]
  915 |  switch (tx_type) {
      |  ^~~~~~
drivers/net/ethernet/mellanox/mlxsw/spectrum_ptp.c:927:2: warning: enumeration value ‘__HWTSTAMP_FILTER_CNT’ not handled in switch [-Wswitch]
  927 |  switch (rx_filter) {
      |  ^~~~~~

Fixes: f76510b458a5 ("ethtool: add timestamping related string sets")
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Reported-by: David S. Miller <davem@davemloft.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-03-30 11:20:33 -07:00
ba7d16c779 devlink: Implicitly set auto recover flag when registering health reporter
When health reporter is registered to devlink, devlink will implicitly set
auto recover if and only if the reporter has a recover method. No reason
to explicitly get the auto recover flag from the driver.

Remove this flag from all drivers that called
devlink_health_reporter_create.

All existing health reporters set auto recovery to true if they have a
recover method.

Yet, administrator can unset auto recover via netlink command as prior to
this patch.

Signed-off-by: Eran Ben Elisha <eranbe@mellanox.com>
Reviewed-by: Jiri Pirko <jiri@mellanox.com>
Reviewed-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-03-30 11:17:34 -07:00
93a129eb8c net: sched: expose HW stats types per action used by drivers
It may be up to the driver (in case ANY HW stats is passed) to select
which type of HW stats he is going to use. Add an infrastructure to
expose this information to user.

$ tc filter add dev enp3s0np1 ingress proto ip handle 1 pref 1 flower dst_ip 192.168.1.1 action drop
$ tc -s filter show dev enp3s0np1 ingress
filter protocol ip pref 1 flower chain 0
filter protocol ip pref 1 flower chain 0 handle 0x1
  eth_type ipv4
  dst_ip 192.168.1.1
  in_hw in_hw_count 2
        action order 1: gact action drop
         random type none pass val 0
         index 1 ref 1 bind 1 installed 10 sec used 10 sec
        Action statistics:
        Sent 0 bytes 0 pkt (dropped 0, overlimits 0 requeues 0)
        backlog 0b 0p requeues 0
        used_hw_stats immediate     <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<

Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-03-30 11:06:49 -07:00
a9775bb64a net: hns3: fix set and get link ksettings issue
When device is not open, the service task which update the port
information per second is not running. In this case, the port
capabilities, including speed ability, autoneg ability, media type,
may be incorrect. Then get/set link ksetting may fail.

This patch fixes it by updating the port information before getting/
setting link ksettings when device is not open, and start timer
task immediately by setting delay time to 0 when device opens.

Fixes: 46a3df9f9718 ("net: hns3: Add HNS3 Acceleration Engine & Compatibility Layer Support")
Signed-off-by: Guangbin Huang <huangguangbin2@huawei.com>
Signed-off-by: Huazhong Tan <tanhuazhong@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-03-30 10:57:53 -07:00
944de4847a net: hns3: fix RSS config lost after VF reset.
Currently, VF's RSS configuration would be set to default
after VF reset, the the user's one will loss.

To fix it, this patch separates hclgevf_rss_init_hw() into
two parts, one sets up the default RSS configuration and
just be called when driver loading, one configures the hardware
and be called by driver loading or reset.

Fixes: d97b30721301 ("net: hns3: Add RSS tuples support for VF")
Signed-off-by: Guojia Liao <liaoguojia@huawei.com>
Signed-off-by: Huazhong Tan <tanhuazhong@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-03-30 10:57:53 -07:00
74ef402e13 net: hns3: fix for fraglist SKB headlen not handling correctly
When the fraglist SKB headlen is larger than zero, current code
still handle the fraglist SKB linear data as frag data, which may
cause TX error.

This patch adds a new DESC_TYPE_FRAGLIST_SKB type to handle the
mapping and unmapping of the fraglist SKB linear data buffer.

Fixes: 8ae10cfb5089 ("net: hns3: support tx-scatter-gather-fraglist feature")
Signed-off-by: Yunsheng Lin <linyunsheng@huawei.com>
Signed-off-by: Huazhong Tan <tanhuazhong@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-03-30 10:57:53 -07:00
16deaef205 net: hns3: drop the WQ_MEM_RECLAIM flag when allocating WQ
The WQ in hns3 driver is allocated with WQ_MEM_RECLAIM flag
in order to guarantee forward progress, which may cause hns3'
WQ_MEM_RECLAIM WQ flushing infiniband' !WQ_MEM_RECLAIM WQ
warning:

[11246.200168] hns3 0000:bd:00.1: Reset done, hclge driver initialization finished.
[11246.209979] hns3 0000:bd:00.1 eth7: net open
[11246.227608] ------------[ cut here ]------------
[11246.237370] workqueue: WQ_MEM_RECLAIM hclge:hclge_service_task [hclge] is flushing !WQ_MEM_RECLAIM infiniband:0x0
[11246.237391] WARNING: CPU: 50 PID: 2279 at ./kernel/workqueue.c:2605 check_flush_dependency+0xcc/0x140
[11246.260412] Modules linked in: hclgevf hns_roce_hw_v2 rdma_test(O) hns3 xt_CHECKSUM iptable_mangle xt_conntrack ipt_REJECT nf_reject_ipv4 ebtable_filter ebtables ip6table_filter ip6_tables iptable_filter bpfilter vfio_iommu_type1 vfio_pci vfio_virqfd vfio ib_isert iscsi_target_mod ib_ipoib ib_umad rpcrdma ib_iser libiscsi scsi_transport_iscsi aes_ce_blk crypto_simd cryptd aes_ce_cipher sunrpc nls_iso8859_1 crct10dif_ce ghash_ce sha2_ce sha256_arm64 sha1_ce joydev input_leds hid_generic usbkbd usbmouse sbsa_gwdt usbhid usb_storage hid ses hclge hisi_zip hisi_hpre hisi_sec2 hnae3 hisi_qm ahci hisi_trng_v2 evbug uacce rng_core gpio_dwapb autofs4 hisi_sas_v3_hw megaraid_sas hisi_sas_main libsas scsi_transport_sas [last unloaded: hns_roce_hw_v2]
[11246.325742] CPU: 50 PID: 2279 Comm: kworker/50:0 Kdump: loaded Tainted: G           O      5.4.0-rc4+ #1
[11246.335181] Hardware name: Huawei TaiShan 200 (Model 2280)/BC82AMDD, BIOS 2280-V2 CS V3.B140.01 12/18/2019
[11246.344802] Workqueue: hclge hclge_service_task [hclge]
[11246.350007] pstate: 60c00009 (nZCv daif +PAN +UAO)
[11246.354779] pc : check_flush_dependency+0xcc/0x140
[11246.359549] lr : check_flush_dependency+0xcc/0x140
[11246.364317] sp : ffff800268a73990
[11246.367618] x29: ffff800268a73990 x28: 0000000000000001
[11246.372907] x27: ffffcbe4f5868000 x26: ffffcbe4f5541000
[11246.378196] x25: 00000000000000b8 x24: ffff002fdd0ff868
[11246.383483] x23: ffff002fdd0ff800 x22: ffff2027401ba600
[11246.388770] x21: 0000000000000000 x20: ffff002fdd0ff800
[11246.394059] x19: ffff202719293b00 x18: ffffcbe4f5541948
[11246.399347] x17: 000000006f8ad8dd x16: 0000000000000002
[11246.404634] x15: ffff8002e8a734f7 x14: 6c66207369205d65
[11246.409922] x13: 676c63685b206b73 x12: 61745f6563697672
[11246.415208] x11: 65735f65676c6368 x10: 3a65676c6368204d
[11246.420494] x9 : 49414c4345525f4d x8 : 6e6162696e69666e
[11246.425782] x7 : 69204d49414c4345 x6 : ffffcbe4f5765145
[11246.431068] x5 : 0000000000000000 x4 : 0000000000000000
[11246.436355] x3 : 0000000000000030 x2 : 00000000ffffffff
[11246.441642] x1 : 3349eb1ac5310100 x0 : 0000000000000000
[11246.446928] Call trace:
[11246.449363]  check_flush_dependency+0xcc/0x140
[11246.453785]  flush_workqueue+0x110/0x410
[11246.457691]  ib_cache_cleanup_one+0x54/0x468
[11246.461943]  __ib_unregister_device+0x70/0xa8
[11246.466279]  ib_unregister_device+0x2c/0x40
[11246.470455]  hns_roce_exit+0x34/0x198 [hns_roce_hw_v2]
[11246.475571]  __hns_roce_hw_v2_uninit_instance.isra.56+0x3c/0x58 [hns_roce_hw_v2]
[11246.482934]  hns_roce_hw_v2_reset_notify+0xd8/0x210 [hns_roce_hw_v2]
[11246.489261]  hclge_notify_roce_client+0x84/0xe0 [hclge]
[11246.494464]  hclge_reset_rebuild+0x60/0x730 [hclge]
[11246.499320]  hclge_reset_service_task+0x400/0x5a0 [hclge]
[11246.504695]  hclge_service_task+0x54/0x698 [hclge]
[11246.509464]  process_one_work+0x15c/0x458
[11246.513454]  worker_thread+0x144/0x520
[11246.517186]  kthread+0xfc/0x128
[11246.520314]  ret_from_fork+0x10/0x18
[11246.523873] ---[ end trace eb980723699c2585 ]---
[11246.528710] hns3 0000:bd:00.2: Func clear success after reset.
[11246.528747] hns3 0000:bd:00.0: Func clear success after reset.
[11246.907710] hns3 0000:bd:00.1 eth7: link up

According to [1] and [2]:

There seems to be no specific guidance about how to handling the
forward progress guarantee of network device's WQ yet, and other
network device's WQ seem to be marked with WQ_MEM_RECLAIM without
a clear reason.

So this patch removes the WQ_MEM_RECLAIM flag when allocating WQ
to aviod the above warning.

1. https://www.spinics.net/lists/netdev/msg631646.html
2. https://www.spinics.net/lists/netdev/msg632097.html

Fixes: 0ea68902256e ("net: hns3: allocate WQ with WQ_MEM_RECLAIM flag")
Signed-off-by: Yunsheng Lin <linyunsheng@huawei.com>
Signed-off-by: Huazhong Tan <tanhuazhong@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-03-30 10:57:53 -07:00