1. 09 Sep, 2020 40 commits
    • Russell King's avatar
      net: mvpp2: restructure "link status" interrupt handling · 36cfd3a6
      Russell King authored
      The "link status" interrupt is used for more than just link status.
      Restructure mvpp2_link_status_isr() so we can add additional handling.
      Reviewed-by: default avatarAndrew Lunn <andrew@lunn.ch>
      Signed-off-by: default avatarRussell King <rmk+kernel@armlinux.org.uk>
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      36cfd3a6
    • David S. Miller's avatar
      Merge branch 'devlink-show-controller-number' · b599a5b9
      David S. Miller authored
      Parav Pandit says:
      
      ====================
      devlink show controller number
      
      Currently a devlink instance that supports an eswitch handles eswitch
      ports of two type of controllers.
      (1) controller discovered on same system where eswitch resides.
      This is the case where PCI PF/VF of a controller and devlink eswitch
      instance both are located on a single system.
      (2) controller located on external system.
      This is the case where a controller is plugged in one system and its
      devlink eswitch ports are located in a different system. In this case
      devlink instance of the eswitch only have access to ports of the
      controller.
      However, there is no way to describe that a eswitch devlink port
      belongs to which controller (mainly which external host controller).
      This problem is more prevalent when port attribute such as PF and VF
      numbers are overlapping between multiple controllers of same eswitch.
      Due to this, for a specific switch_id, unique phys_port_name cannot
      be constructed for such devlink ports.
      
      This short series overcomes this limitation by defining two new
      attributes.
      (a) external: Indicates if port belongs to external controller
      (b) controller number: Indicates a controller number of the port
      
      Based on this a unique phys_port_name is prepared using controller
      number.
      
      phys_port_name construction using unique controller number is only
      applicable to external controller ports. This ensures that for
      non smartnic usecases where there is no external controller,
      phys_port_name stays same as before.
      
      Patch summary:
      Patch-1 Added mlx5 driver to read controller number
      Patch-2 Adds the missing comment for the port attributes
      Patch-3 Move structure comments away from structure fields
      Patch-4 external attribute added for PCI port flavours
      Patch-5 Add controller number
      Patch-6 Use controller number to build phys_port_name
      
      ---
      Changelog:
      v2->v3:
       - Updated diagram to get rid of controller 'A' and 'B'
       - Kept ports of single controller together in diagram
       - Updated diagram for pf1's VF and SF and its ports
      v1->v2:
       - Added text diagram of multiple controllers
       - Updated example for a VF
       - Addressed comments from Jiri and Jakub
       - Moved controller number attribute to PCI port flavours
         This enables to better, hirerchical view with controller and its
          PF, VF numbers
       - Split 'external' and 'controller number' attributes as two
         different attributes
       - Merged mlx5_core driver to avoid compiliation break
      ====================
      Acked-by: default avatarJakub Kicinski <kuba@kernel.org>
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      b599a5b9
    • Parav Pandit's avatar
      devlink: Use controller while building phys_port_name · 66b17082
      Parav Pandit authored
      Now that controller number attribute is available, use it when
      building phsy_port_name for external controller ports.
      
      An example devlink port and representor netdev name consist of controller
      annotation for external controller with controller number = 1,
      for a VF 1 of PF 0:
      
      $ devlink port show pci/0000:06:00.0/2
      pci/0000:06:00.0/2: type eth netdev ens2f0c1pf0vf1 flavour pcivf controller 1 pfnum 0 vfnum 1 external true splittable false
        function:
          hw_addr 00:00:00:00:00:00
      
      $ devlink port show pci/0000:06:00.0/2 -jp
      {
          "port": {
              "pci/0000:06:00.0/2": {
                  "type": "eth",
                  "netdev": "ens2f0c1pf0vf1",
                  "flavour": "pcivf",
                  "controller": 1,
                  "pfnum": 0,
                  "vfnum": 1,
                  "external": true,
                  "splittable": false,
                  "function": {
                      "hw_addr": "00:00:00:00:00:00"
                  }
              }
          }
      }
      
      Controller number annotation is skipped for non external controllers to
      maintain backward compatibility.
      Signed-off-by: default avatarParav Pandit <parav@nvidia.com>
      Reviewed-by: default avatarJiri Pirko <jiri@nvidia.com>
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      66b17082
    • Parav Pandit's avatar
      devlink: Introduce controller number · 3a2d9588
      Parav Pandit authored
      A devlink port may be for a controller consist of PCI device.
      A devlink instance holds ports of two types of controllers.
      (1) controller discovered on same system where eswitch resides
      This is the case where PCI PF/VF of a controller and devlink eswitch
      instance both are located on a single system.
      (2) controller located on external host system.
      This is the case where a controller is located in one system and its
      devlink eswitch ports are located in a different system.
      
      When a devlink eswitch instance serves the devlink ports of both
      controllers together, PCI PF/VF numbers may overlap.
      Due to this a unique phys_port_name cannot be constructed.
      
      For example in below such system controller-0 and controller-1, each has
      PCI PF pf0 whose eswitch ports can be present in controller-0.
      These results in phys_port_name as "pf0" for both.
      Similar problem exists for VFs and upcoming Sub functions.
      
      An example view of two controller systems:
      
                   ---------------------------------------------------------
                   |                                                       |
                   |           --------- ---------         ------- ------- |
      -----------  |           | vf(s) | | sf(s) |         |vf(s)| |sf(s)| |
      | server  |  | -------   ----/---- ---/----- ------- ---/--- ---/--- |
      | pci rc  |=== | pf0 |______/________/       | pf1 |___/_______/     |
      | connect |  | -------                       -------                 |
      -----------  |     | controller_num=1 (no eswitch)                   |
                   ------|--------------------------------------------------
                   (internal wire)
                         |
                   ---------------------------------------------------------
                   | devlink eswitch ports and reps                        |
                   | ----------------------------------------------------- |
                   | |ctrl-0 | ctrl-0 | ctrl-0 | ctrl-0 | ctrl-0 |ctrl-0 | |
                   | |pf0    | pf0vfN | pf0sfN | pf1    | pf1vfN |pf1sfN | |
                   | ----------------------------------------------------- |
                   | |ctrl-1 | ctrl-1 | ctrl-1 | ctrl-1 | ctrl-1 |ctrl-1 | |
                   | |pf1    | pf1vfN | pf1sfN | pf1    | pf1vfN |pf0sfN | |
                   | ----------------------------------------------------- |
                   |                                                       |
                   |                                                       |
                   |           --------- ---------         ------- ------- |
                   |           | vf(s) | | sf(s) |         |vf(s)| |sf(s)| |
                   | -------   ----/---- ---/----- ------- ---/--- ---/--- |
                   | | pf0 |______/________/       | pf1 |___/_______/     |
                   | -------                       -------                 |
                   |                                                       |
                   |  local controller_num=0 (eswitch)                     |
                   ---------------------------------------------------------
      
      An example devlink port for external controller with controller
      number = 1 for a VF 1 of PF 0:
      
      $ devlink port show pci/0000:06:00.0/2
      pci/0000:06:00.0/2: type eth netdev ens2f0pf0vf1 flavour pcivf controller 1 pfnum 0 vfnum 1 external true splittable false
        function:
          hw_addr 00:00:00:00:00:00
      
      $ devlink port show pci/0000:06:00.0/2 -jp
      {
          "port": {
              "pci/0000:06:00.0/2": {
                  "type": "eth",
                  "netdev": "ens2f0pf0vf1",
                  "flavour": "pcivf",
                  "controller": 1,
                  "pfnum": 0,
                  "vfnum": 1,
                  "external": true,
                  "splittable": false,
                  "function": {
                      "hw_addr": "00:00:00:00:00:00"
                  }
              }
          }
      }
      Signed-off-by: default avatarParav Pandit <parav@nvidia.com>
      Reviewed-by: default avatarJiri Pirko <jiri@nvidia.com>
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      3a2d9588
    • Parav Pandit's avatar
      devlink: Introduce external controller flag · 05b595e9
      Parav Pandit authored
      A devlink eswitch port may represent PCI PF/VF ports of a controller.
      
      A controller either located on same system or it can be an external
      controller located in host where such NIC is plugged in.
      
      Add the ability for driver to specify if a port is for external
      controller.
      
      Use such flag in the mlx5_core driver.
      
      An example of an external controller having VF1 of PF0 belong to
      controller 1.
      
      $ devlink port show pci/0000:06:00.0/2
      pci/0000:06:00.0/2: type eth netdev ens2f0pf0vf1 flavour pcivf pfnum 0 vfnum 1 external true splittable false
        function:
          hw_addr 00:00:00:00:00:00
      $ devlink port show pci/0000:06:00.0/2 -jp
      {
          "port": {
              "pci/0000:06:00.0/2": {
                  "type": "eth",
                  "netdev": "ens2f0pf0vf1",
                  "flavour": "pcivf",
                  "pfnum": 0,
                  "vfnum": 1,
                  "external": true,
                  "splittable": false,
                  "function": {
                      "hw_addr": "00:00:00:00:00:00"
                  }
              }
          }
      }
      Signed-off-by: default avatarParav Pandit <parav@nvidia.com>
      Reviewed-by: default avatarJiri Pirko <jiri@nvidia.com>
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      05b595e9
    • Parav Pandit's avatar
      devlink: Move structure comments outside of structure · ff03e63a
      Parav Pandit authored
      To add more fields to the PCI PF and VF port attributes, follow standard
      structure comment format.
      Signed-off-by: default avatarParav Pandit <parav@nvidia.com>
      Reviewed-by: default avatarJiri Pirko <jiri@nvidia.com>
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      ff03e63a
    • Parav Pandit's avatar
      devlink: Add comment block for missing port attributes · 2efbe6ae
      Parav Pandit authored
      Add comment block for physical, PF and VF port attributes.
      Signed-off-by: default avatarParav Pandit <parav@nvidia.com>
      Reviewed-by: default avatarJiri Pirko <jiri@nvidia.com>
      Reviewed-by: default avatarRoi Dayan <roid@nvidia.com>
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      2efbe6ae
    • Parav Pandit's avatar
      net/mlx5: E-switch, Read controller number from device · a53cf949
      Parav Pandit authored
      ECPF supports one external host controller. Read controller number
      from the device.
      Signed-off-by: default avatarParav Pandit <parav@nvidia.com>
      Reviewed-by: default avatarRoi Dayan <roid@nvidia.com>
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      a53cf949
    • Zhang Changzhong's avatar
      net: stmmac: dwmac-intel-plat: remove redundant null check before clk_disable_unprepare() · 6b5472d4
      Zhang Changzhong authored
      Because clk_prepare_enable() and clk_disable_unprepare() already checked
      NULL clock parameter, so the additional checks are unnecessary, just
      remove them.
      Reported-by: default avatarHulk Robot <hulkci@huawei.com>
      Signed-off-by: default avatarZhang Changzhong <zhangchangzhong@huawei.com>
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      6b5472d4
    • Zhang Changzhong's avatar
      net: pxa168_eth: remove redundant null check before clk_disable_unprepare() · a0d48518
      Zhang Changzhong authored
      Because clk_prepare_enable() and clk_disable_unprepare() already checked
      NULL clock parameter, so the additional checks are unnecessary, just
      remove them.
      Reported-by: default avatarHulk Robot <hulkci@huawei.com>
      Signed-off-by: default avatarZhang Changzhong <zhangchangzhong@huawei.com>
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      a0d48518
    • David S. Miller's avatar
      Merge branch 'SMSC-Cleanups-and-clock-setup' · 34e43543
      David S. Miller authored
      Marco Felsch says:
      
      ====================
      SMSC: Cleanups and clock setup
      
      this small series cleans the smsc-phy code a bit and adds the support to
      specify the phy clock source. Adding the phy clock source support is
      also the main purpose of this series.
      
      Each file has its own changelog.
      
      Thanks a lot to Florian and Andrew for reviewing it.
      ====================
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      34e43543
    • Marco Felsch's avatar
      net: phy: smsc: LAN8710/20: remove PHY_RST_AFTER_CLK_EN flag · d65af218
      Marco Felsch authored
      Don't reset the phy without respect to the PHY library state machine
      because this breaks the phy IRQ mode. The same behaviour can be archived
      now by specifying the refclk.
      Signed-off-by: default avatarMarco Felsch <m.felsch@pengutronix.de>
      Reviewed-by: default avatarFlorian Fainelli <f.fainelli@gmail.com>
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      d65af218
    • Marco Felsch's avatar
      net: phy: smsc: LAN8710/20: add phy refclk in support · bedd8d78
      Marco Felsch authored
      Add support to specify the clock provider for the PHY refclk and don't
      rely on 'magic' host clock setup. [1] tried to address this by
      introducing a flag and fixing the corresponding host. But this commit
      breaks the IRQ support since the irq setup during .config_intr() is
      thrown away because the reset comes from the side without respecting the
      current PHY state within the PHY library state machine. Furthermore the
      commit fixed the problem only for FEC based hosts other hosts acting
      like the FEC are not covered.
      
      This commit goes the other way around to address the bug fixed by [1].
      Instead of resetting the device from the side every time the refclk gets
      (re-)enabled it requests and enables the clock till the device gets
      removed. Now the PHY library is the only place where the PHY gets reset
      to respect the PHY library state machine.
      
      [1] commit 7f64e5b1 ("net: phy: smsc: LAN8710/20: add
          PHY_RST_AFTER_CLK_EN flag")
      Signed-off-by: default avatarMarco Felsch <m.felsch@pengutronix.de>
      Reviewed-by: default avatarFlorian Fainelli <f.fainelli@gmail.com>
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      bedd8d78
    • Marco Felsch's avatar
      dt-bindings: net: phy: smsc: document reference clock · 84475a9e
      Marco Felsch authored
      Add support to specify the reference clock for the phy.
      Signed-off-by: default avatarMarco Felsch <m.felsch@pengutronix.de>
      Reviewed-by: default avatarFlorian Fainelli <f.fainelli@gmail.com>
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      84475a9e
    • Marco Felsch's avatar
      net: phy: smsc: simplify config_init callback · 436e3800
      Marco Felsch authored
      Exit the driver specific config_init hook early if energy detection is
      disabled. We can do this because we don't need to clear the interrupt
      status here. Clearing the status should be removed anyway since this is
      handled by the phy_enable_interrupts().
      Signed-off-by: default avatarMarco Felsch <m.felsch@pengutronix.de>
      Reviewed-by: default avatarFlorian Fainelli <f.fainelli@gmail.com>
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      436e3800
    • Marco Felsch's avatar
      net: phy: smsc: skip ENERGYON interrupt if disabled · 73654945
      Marco Felsch authored
      Don't enable the interrupt if the platform disable the energy detection
      by "smsc,disable-energy-detect".
      Signed-off-by: default avatarMarco Felsch <m.felsch@pengutronix.de>
      Reviewed-by: default avatarAndrew Lunn <andrew@lunn.ch>
      Reviewed-by: default avatarFlorian Fainelli <f.fainelli@gmail.com>
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      73654945
    • Wang Hai's avatar
      net: cavium: Fix a bunch of kerneldoc parameter issues · 74c654a8
      Wang Hai authored
      Rename ptp to ptp_info.
      
      Fix W=1 compile warnings (invalid kerneldoc):
      
      drivers/net/ethernet/cavium/common/cavium_ptp.c:94: warning: Excess function parameter 'ptp' description in 'cavium_ptp_adjfine'
      drivers/net/ethernet/cavium/common/cavium_ptp.c:141: warning: Excess function parameter 'ptp' description in 'cavium_ptp_adjtime'
      drivers/net/ethernet/cavium/common/cavium_ptp.c:163: warning: Excess function parameter 'ptp' description in 'cavium_ptp_gettime'
      drivers/net/ethernet/cavium/common/cavium_ptp.c:185: warning: Excess function parameter 'ptp' description in 'cavium_ptp_settime'
      drivers/net/ethernet/cavium/common/cavium_ptp.c:208: warning: Excess function parameter 'ptp' description in 'cavium_ptp_enable'
      Reported-by: default avatarHulk Robot <hulkci@huawei.com>
      Signed-off-by: default avatarWang Hai <wanghai38@huawei.com>
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      74c654a8
    • Ayush Sawal's avatar
      cxgb4/ch_ipsec: Registering xfrmdev_ops with cxgb4 · 76f919eb
      Ayush Sawal authored
      As ch_ipsec was removed without clearing xfrmdev_ops and netdev
      feature(esp-hw-offload). When a recalculation of netdev feature is
      triggered by changing tls feature(tls-hw-tx-offload) from user
      request, it causes a page fault due to absence of valid xfrmdev_ops.
      
      Fixes: 6dad4e8a ("chcr: Add support for Inline IPSec")
      Signed-off-by: default avatarAyush Sawal <ayush.sawal@chelsio.com>
      Acked-by: default avatarJakub Kicinski <kuba@kernel.org>
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      76f919eb
    • David S. Miller's avatar
      Merge branch 'ksz9477-dsa-switch-driver-improvements' · 8794ebfe
      David S. Miller authored
      Paul Barker says:
      
      ====================
      ksz9477 dsa switch driver improvements
      
      These changes were made while debugging the ksz9477 driver for use on a
      custom board which uses the ksz9893 switch supported by this driver. The
      patches have been runtime tested on top of Linux 5.8.4, I couldn't
      runtime test them on top of 5.9-rc3 due to unrelated issues. They have
      been build tested on top of net-next.
      
      These changes can also be pulled from:
      
        https://gitlab.com/pbarker.dev/staging/linux.git
        tag: for-net-next/ksz-v3_2020-09-09
      
      Changes from v2:
      
        * Fixed incorrect type in assignment error.
      Reported-by: default avatarkernel test robot <lkp@intel.com>
      
      Changes from v1:
      
        * Rebased onto net-next.
      
        * Dropped unnecessary `#include <linux/printk.h>`.
      
        * Instead of printing the phy mode in `ksz9477_port_setup()`, modify
          the existing print in `ksz9477_config_cpu_port()` to always produce
          output and to be more clear.
      ====================
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      8794ebfe
    • Paul Barker's avatar
      net: dsa: microchip: Implement recommended reset timing · 5b797980
      Paul Barker authored
      The datasheet for the ksz9893 and ksz9477 switches recommend waiting at
      least 100us after the de-assertion of reset before trying to program the
      device through any interface.
      
      Also switch the existing msleep() call to usleep_range() as recommended
      in Documentation/timers/timers-howto.rst. The 2ms range used here is
      somewhat arbitrary, as long as the reset is asserted for at least 10ms
      we should be ok.
      Signed-off-by: default avatarPaul Barker <pbarker@konsulko.com>
      Reviewed-by: default avatarFlorian Fainelli <f.fainelli@gmail.com>
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      5b797980
    • Paul Barker's avatar
      net: dsa: microchip: Disable RGMII in-band status on KSZ9893 · ade64eb5
      Paul Barker authored
      We can't assume that the link partner supports the in-band status
      reporting which is enabled by default on the KSZ9893 when using RGMII
      for the upstream port.
      Signed-off-by: default avatarPaul Barker <pbarker@konsulko.com>
      Reviewed-by: default avatarAndrew Lunn <andrew@lunn.ch>
      Reviewed-by: default avatarFlorian Fainelli <f.fainelli@gmail.com>
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      ade64eb5
    • Paul Barker's avatar
      net: dsa: microchip: Improve phy mode message · 805a7e6f
      Paul Barker authored
      Always print the selected phy mode for the CPU port when using the
      ksz9477 driver. If the phy mode was changed, also print the previous
      mode to aid in debugging.
      
      To make the message more clear, prefix it with the port number which it
      applies to and improve the language a little.
      Signed-off-by: default avatarPaul Barker <pbarker@konsulko.com>
      Reviewed-by: default avatarFlorian Fainelli <f.fainelli@gmail.com>
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      805a7e6f
    • Paul Barker's avatar
      net: dsa: microchip: Make switch detection more informative · 3c85f775
      Paul Barker authored
      To make switch detection more informative print the result of the
      ksz9477/ksz9893 compatibility check. With debug output enabled also
      print the contents of the Chip ID registers as a 40-bit hex string.
      
      As this detection is the first communication with the switch performed
      by the driver, making it easy to see any errors here will help identify
      issues with SPI data corruption or reset sequencing.
      Signed-off-by: default avatarPaul Barker <pbarker@konsulko.com>
      Reviewed-by: default avatarFlorian Fainelli <f.fainelli@gmail.com>
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      3c85f775
    • David S. Miller's avatar
      Merge git://git.kernel.org/pub/scm/linux/kernel/git/pablo/nf-next · d85427e3
      David S. Miller authored
      Pablo Neira Ayuso says:
      
      ====================
      Netfilter updates for net-next
      
      The following patchset contains Netfilter updates for net-next:
      
      1) Rewrite inner header IPv6 in ICMPv6 messages in ip6t_NPT,
         from Michael Zhou.
      
      2) do_ip_vs_set_ctl() dereferences uninitialized value,
         from Peilin Ye.
      
      3) Support for userdata in tables, from Jose M. Guisado.
      
      4) Do not increment ct error and invalid stats at the same time,
         from Florian Westphal.
      
      5) Remove ct ignore stats, also from Florian.
      
      6) Add ct stats for clash resolution, from Florian Westphal.
      
      7) Bump reference counter bump on ct clash resolution only,
         this is safe because bucket lock is held, again from Florian.
      
      8) Use ip_is_fragment() in xt_HMARK, from YueHaibing.
      
      9) Add wildcard support for nft_socket, from Balazs Scheidler.
      
      10) Remove superfluous IPVS dependency on iptables, from
          Yaroslav Bolyukin.
      
      11) Remove unused definition in ebt_stp, from Wang Hai.
      
      12) Replace CONFIG_NFT_CHAIN_NAT_{IPV4,IPV6} by CONFIG_NFT_NAT
          in selftests/net, from Fabian Frederick.
      
      13) Add userdata support for nft_object, from Jose M. Guisado.
      ====================
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      d85427e3
    • Randy Dunlap's avatar
      net: ethernet/neterion/vxge: fix spelling of "functionality" · ac99a822
      Randy Dunlap authored
      Fix typo/spello of "functionality".
      Signed-off-by: default avatarRandy Dunlap <rdunlap@infradead.org>
      Cc: Jon Mason <jdmason@kudzu.us>
      Cc: "David S. Miller" <davem@davemloft.net>
      Cc: Jakub Kicinski <kuba@kernel.org>
      Cc: netdev@vger.kernel.org
      Cc: Jiri Kosina <trivial@kernel.org>
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      ac99a822
    • Randy Dunlap's avatar
      nfc: pn533/usb.c: fix spelling of "functions" · f5499c67
      Randy Dunlap authored
      Fix typo/spello of "functions".
      Signed-off-by: default avatarRandy Dunlap <rdunlap@infradead.org>
      Cc: linux-nfc@lists.01.org
      Cc: "David S. Miller" <davem@davemloft.net>
      Cc: Jakub Kicinski <kuba@kernel.org>
      Cc: netdev@vger.kernel.org
      Cc: Jiri Kosina <trivial@kernel.org>
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      f5499c67
    • Wei Wang's avatar
      ipv6: add tos reflection in TCP reset and ack · e92dd77e
      Wei Wang authored
      Currently, ipv6 stack does not do any TOS reflection. To make the
      behavior consistent with v4 stack, this commit adds TOS reflection in
      tcp_v6_reqsk_send_ack() and tcp_v6_send_reset(). We clear the lower
      2-bit ECN value of the received TOS in compliance with RFC 3168 6.1.5
      robustness principles.
      Signed-off-by: default avatarWei Wang <weiwan@google.com>
      Signed-off-by: default avatarEric Dumazet <edumazet@google.com>
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      e92dd77e
    • David S. Miller's avatar
      Merge tag 'rxrpc-next-20200908' of git://git.kernel.org/pub/scm/linux/kernel/git/dhowells/linux-fs · 56bbc22d
      David S. Miller authored
      David Howells says:
      
      ====================
      rxrpc: Allow more calls to same peer
      
      Here are some development patches for AF_RXRPC that allow more simultaneous
      calls to be made to the same peer with the same security parameters.  The
      current code allows a maximum of 4 simultaneous calls, which limits the afs
      filesystem to that many simultaneous threads.  This increases the limit to
      16.
      
      To make this work, the way client connections are limited has to be changed
      (incoming call/connection limits are unaffected) as the current code
      depends on queuing calls on a connection and then pushing the connection
      through a queue.  The limit is on the number of available connections.
      
      This is changed such that there's a limit[*] on the total number of calls
      systemwide across all namespaces, but the limit on the number of client
      connections is removed.
      
      Once a call is allowed to proceed, it finds a bundle of connections and
      tries to grab a call slot.  If there's a spare call slot, fine, otherwise
      it will wait.  If there's already a waiter, it will try to create another
      connection in the bundle, unless the limit of 4 is reached (4 calls per
      connection, giving 16).
      
      A number of things throttle someone trying to set up endless connections:
      
       - Calls that fail immediately have their conns deleted immediately,
      
       - Calls that don't fail immediately have to wait for a timeout,
      
       - Connections normally get automatically reaped if they haven't been used
         for 2m, but this is sped up to 2s if the number of connections rises
         over 900.  This number is tunable by sysctl.
      
      [*] Technically two limits - kernel sockets and userspace rxrpc sockets are
          accounted separately.
      ====================
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      56bbc22d
    • Christophe JAILLET's avatar
      net: tc35815: switch from 'pci_' to 'dma_' API · cdd84a93
      Christophe JAILLET authored
      The wrappers in include/linux/pci-dma-compat.h should go away.
      
      The patch has been generated with the coccinelle script below and has been
      hand modified to replace GFP_ with a correct flag.
      It has been compile tested.
      
      When memory is allocated in 'tc35815_init_queues()' GFP_ATOMIC must be used
      because it can be called from 'tc35815_restart()' where some spinlock are
      taken.
      The call chain is:
        tc35815_restart
          --> tc35815_clear_queues
            --> tc35815_init_queues
      
      @@
      @@
      -    PCI_DMA_BIDIRECTIONAL
      +    DMA_BIDIRECTIONAL
      
      @@
      @@
      -    PCI_DMA_TODEVICE
      +    DMA_TO_DEVICE
      
      @@
      @@
      -    PCI_DMA_FROMDEVICE
      +    DMA_FROM_DEVICE
      
      @@
      @@
      -    PCI_DMA_NONE
      +    DMA_NONE
      
      @@
      expression e1, e2, e3;
      @@
      -    pci_alloc_consistent(e1, e2, e3)
      +    dma_alloc_coherent(&e1->dev, e2, e3, GFP_)
      
      @@
      expression e1, e2, e3;
      @@
      -    pci_zalloc_consistent(e1, e2, e3)
      +    dma_alloc_coherent(&e1->dev, e2, e3, GFP_)
      
      @@
      expression e1, e2, e3, e4;
      @@
      -    pci_free_consistent(e1, e2, e3, e4)
      +    dma_free_coherent(&e1->dev, e2, e3, e4)
      
      @@
      expression e1, e2, e3, e4;
      @@
      -    pci_map_single(e1, e2, e3, e4)
      +    dma_map_single(&e1->dev, e2, e3, e4)
      
      @@
      expression e1, e2, e3, e4;
      @@
      -    pci_unmap_single(e1, e2, e3, e4)
      +    dma_unmap_single(&e1->dev, e2, e3, e4)
      
      @@
      expression e1, e2, e3, e4, e5;
      @@
      -    pci_map_page(e1, e2, e3, e4, e5)
      +    dma_map_page(&e1->dev, e2, e3, e4, e5)
      
      @@
      expression e1, e2, e3, e4;
      @@
      -    pci_unmap_page(e1, e2, e3, e4)
      +    dma_unmap_page(&e1->dev, e2, e3, e4)
      
      @@
      expression e1, e2, e3, e4;
      @@
      -    pci_map_sg(e1, e2, e3, e4)
      +    dma_map_sg(&e1->dev, e2, e3, e4)
      
      @@
      expression e1, e2, e3, e4;
      @@
      -    pci_unmap_sg(e1, e2, e3, e4)
      +    dma_unmap_sg(&e1->dev, e2, e3, e4)
      
      @@
      expression e1, e2, e3, e4;
      @@
      -    pci_dma_sync_single_for_cpu(e1, e2, e3, e4)
      +    dma_sync_single_for_cpu(&e1->dev, e2, e3, e4)
      
      @@
      expression e1, e2, e3, e4;
      @@
      -    pci_dma_sync_single_for_device(e1, e2, e3, e4)
      +    dma_sync_single_for_device(&e1->dev, e2, e3, e4)
      
      @@
      expression e1, e2, e3, e4;
      @@
      -    pci_dma_sync_sg_for_cpu(e1, e2, e3, e4)
      +    dma_sync_sg_for_cpu(&e1->dev, e2, e3, e4)
      
      @@
      expression e1, e2, e3, e4;
      @@
      -    pci_dma_sync_sg_for_device(e1, e2, e3, e4)
      +    dma_sync_sg_for_device(&e1->dev, e2, e3, e4)
      
      @@
      expression e1, e2;
      @@
      -    pci_dma_mapping_error(e1, e2)
      +    dma_mapping_error(&e1->dev, e2)
      
      @@
      expression e1, e2;
      @@
      -    pci_set_dma_mask(e1, e2)
      +    dma_set_mask(&e1->dev, e2)
      
      @@
      expression e1, e2;
      @@
      -    pci_set_consistent_dma_mask(e1, e2)
      +    dma_set_coherent_mask(&e1->dev, e2)
      Signed-off-by: default avatarChristophe JAILLET <christophe.jaillet@wanadoo.fr>
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      cdd84a93
    • Christophe JAILLET's avatar
      hippi: switch from 'pci_' to 'dma_' API · f33a7251
      Christophe JAILLET authored
      The wrappers in include/linux/pci-dma-compat.h should go away.
      
      The patch has been generated with the coccinelle script below and has been
      hand modified to replace GFP_ with a correct flag.
      It has been compile tested.
      
      When memory is allocated in 'rr_init_one()' GFP_KERNEL can be used because
      it is a probe function and no spinlock is taken in the between.
      
      When memory is allocated in 'rr_open()' GFP_KERNEL can be used because
      it is a '.ndo_open' function (see struct net_device_ops) and no spinlock is
      taken in the between.
      '.ndo_open' functions are synchronized using the rtnl_lock() semaphore.
      
      @@
      @@
      -    PCI_DMA_BIDIRECTIONAL
      +    DMA_BIDIRECTIONAL
      
      @@
      @@
      -    PCI_DMA_TODEVICE
      +    DMA_TO_DEVICE
      
      @@
      @@
      -    PCI_DMA_FROMDEVICE
      +    DMA_FROM_DEVICE
      
      @@
      @@
      -    PCI_DMA_NONE
      +    DMA_NONE
      
      @@
      expression e1, e2, e3;
      @@
      -    pci_alloc_consistent(e1, e2, e3)
      +    dma_alloc_coherent(&e1->dev, e2, e3, GFP_)
      
      @@
      expression e1, e2, e3;
      @@
      -    pci_zalloc_consistent(e1, e2, e3)
      +    dma_alloc_coherent(&e1->dev, e2, e3, GFP_)
      
      @@
      expression e1, e2, e3, e4;
      @@
      -    pci_free_consistent(e1, e2, e3, e4)
      +    dma_free_coherent(&e1->dev, e2, e3, e4)
      
      @@
      expression e1, e2, e3, e4;
      @@
      -    pci_map_single(e1, e2, e3, e4)
      +    dma_map_single(&e1->dev, e2, e3, e4)
      
      @@
      expression e1, e2, e3, e4;
      @@
      -    pci_unmap_single(e1, e2, e3, e4)
      +    dma_unmap_single(&e1->dev, e2, e3, e4)
      
      @@
      expression e1, e2, e3, e4, e5;
      @@
      -    pci_map_page(e1, e2, e3, e4, e5)
      +    dma_map_page(&e1->dev, e2, e3, e4, e5)
      
      @@
      expression e1, e2, e3, e4;
      @@
      -    pci_unmap_page(e1, e2, e3, e4)
      +    dma_unmap_page(&e1->dev, e2, e3, e4)
      
      @@
      expression e1, e2, e3, e4;
      @@
      -    pci_map_sg(e1, e2, e3, e4)
      +    dma_map_sg(&e1->dev, e2, e3, e4)
      
      @@
      expression e1, e2, e3, e4;
      @@
      -    pci_unmap_sg(e1, e2, e3, e4)
      +    dma_unmap_sg(&e1->dev, e2, e3, e4)
      
      @@
      expression e1, e2, e3, e4;
      @@
      -    pci_dma_sync_single_for_cpu(e1, e2, e3, e4)
      +    dma_sync_single_for_cpu(&e1->dev, e2, e3, e4)
      
      @@
      expression e1, e2, e3, e4;
      @@
      -    pci_dma_sync_single_for_device(e1, e2, e3, e4)
      +    dma_sync_single_for_device(&e1->dev, e2, e3, e4)
      
      @@
      expression e1, e2, e3, e4;
      @@
      -    pci_dma_sync_sg_for_cpu(e1, e2, e3, e4)
      +    dma_sync_sg_for_cpu(&e1->dev, e2, e3, e4)
      
      @@
      expression e1, e2, e3, e4;
      @@
      -    pci_dma_sync_sg_for_device(e1, e2, e3, e4)
      +    dma_sync_sg_for_device(&e1->dev, e2, e3, e4)
      
      @@
      expression e1, e2;
      @@
      -    pci_dma_mapping_error(e1, e2)
      +    dma_mapping_error(&e1->dev, e2)
      
      @@
      expression e1, e2;
      @@
      -    pci_set_dma_mask(e1, e2)
      +    dma_set_mask(&e1->dev, e2)
      
      @@
      expression e1, e2;
      @@
      -    pci_set_consistent_dma_mask(e1, e2)
      +    dma_set_coherent_mask(&e1->dev, e2)
      Signed-off-by: default avatarChristophe JAILLET <christophe.jaillet@wanadoo.fr>
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      f33a7251
    • Edward Cree's avatar
      sfc: coding style cleanups in mcdi_port_common.c · 161c4e88
      Edward Cree authored
      The code recently moved into this file contained a number of coding style
       issues, about which checkpatch and xmastree complained.  Fix them.
      Signed-off-by: default avatarEdward Cree <ecree@solarflare.com>
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      161c4e88
    • Nikolay Aleksandrov's avatar
      net: bridge: mcast: fix unused br var when lockdep isn't defined · 071445c6
      Nikolay Aleksandrov authored
      Stephen reported the following warning:
       net/bridge/br_multicast.c: In function 'br_multicast_find_port':
       net/bridge/br_multicast.c:1818:21: warning: unused variable 'br' [-Wunused-variable]
        1818 |  struct net_bridge *br = mp->br;
             |                     ^~
      
      It happens due to bridge's mlock_dereference() when lockdep isn't defined.
      Silence the warning by annotating the variable as __maybe_unused.
      
      Fixes: 0436862e ("net: bridge: mcast: support for IGMPv3/MLDv2 ALLOW_NEW_SOURCES report")
      Reported-by: default avatarStephen Rothwell <sfr@canb.auug.org.au>
      Signed-off-by: default avatarNikolay Aleksandrov <nikolay@cumulusnetworks.com>
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      071445c6
    • Wang Hai's avatar
      netlabel: Fix some kernel-doc warnings · 8c70b268
      Wang Hai authored
      Fixes the following W=1 kernel build warning(s):
      
      net/netlabel/netlabel_calipso.c:438: warning: Excess function parameter 'audit_secid' description in 'calipso_doi_remove'
      net/netlabel/netlabel_calipso.c:605: warning: Excess function parameter 'reg' description in 'calipso_req_delattr'
      Reported-by: default avatarHulk Robot <hulkci@huawei.com>
      Signed-off-by: default avatarWang Hai <wanghai38@huawei.com>
      Acked-by: default avatarPaul Moore <paul@paul-moore.com>
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      8c70b268
    • Wang Hai's avatar
      net: wimax: i2400m: fix 'msg_skb' kernel-doc warning in i2400m_msg_to_dev() · 4ff62d82
      Wang Hai authored
      Fixes the following W=1 kernel build warning(s):
      
      drivers/net/wimax/i2400m/control.c:709: warning: Excess function parameter 'msg_skb' description in 'i2400m_msg_to_dev'
      
      This parameter is not in use. Remove it.
      Reported-by: default avatarHulk Robot <hulkci@huawei.com>
      Signed-off-by: default avatarWang Hai <wanghai38@huawei.com>
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      4ff62d82
    • Wang Hai's avatar
      bnx2x: Fix some kernel-doc warnings · 525090b5
      Wang Hai authored
      Fixes the following W=1 kernel build warning(s):
      
      drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.c:4238: warning: Excess function parameter 'netdev' description in 'bnx2x_setup_tc'
      drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.c:4238: warning: Excess function parameter 'tc' description in 'bnx2x_setup_tc'
      Reported-by: default avatarHulk Robot <hulkci@huawei.com>
      Signed-off-by: default avatarWang Hai <wanghai38@huawei.com>
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      525090b5
    • Wang Hai's avatar
      cipso: fix 'audit_secid' kernel-doc warning in cipso_ipv4.c · 7edce636
      Wang Hai authored
      Fixes the following W=1 kernel build warning(s):
      
      net/ipv4/cipso_ipv4.c:510: warning: Excess function parameter 'audit_secid' description in 'cipso_v4_doi_remove'
      Reported-by: default avatarHulk Robot <hulkci@huawei.com>
      Signed-off-by: default avatarWang Hai <wanghai38@huawei.com>
      Acked-by: default avatarPaul Moore <paul@paul-moore.com>
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      7edce636
    • Wei Xu's avatar
      net: smsc911x: Remove unused variables · 652b4987
      Wei Xu authored
      Fixes the following W=1 kernel build warning(s):
      
       drivers/net/ethernet/smsc/smsc911x.c: In function ‘smsc911x_rx_fastforward’:
       drivers/net/ethernet/smsc/smsc911x.c:1199:16: warning: variable ‘temp’ set but not used [-Wunused-but-set-variable]
      
       drivers/net/ethernet/smsc/smsc911x.c: In function ‘smsc911x_eeprom_write_location’:
       drivers/net/ethernet/smsc/smsc911x.c:2058:6: warning: variable ‘temp’ set but not used [-Wunused-but-set-variable]
      Signed-off-by: default avatarWei Xu <xuwei5@hisilicon.com>
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      652b4987
    • David S. Miller's avatar
      Merge branch 'net-hns3-misc-updates' · 360ea6fc
      David S. Miller authored
      Huazhong Tan says:
      
      ====================
      net: hns3: misc updates
      
      There are some misc updates for the HNS3 ethernet driver.
      
      ====================
      
      Reviewed-by: Jakub Kicinski <kuba@kernel.org
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      360ea6fc
    • Guojia Liao's avatar
      net: hns3: remove some unused function hns3_update_promisc_mode() · 2c7bcc1d
      Guojia Liao authored
      hns3_update_promisc_mode is defined, but not be used, so remove it.
      Signed-off-by: default avatarGuojia Liao <liaoguojia@huawei.com>
      Signed-off-by: default avatarHuazhong Tan <tanhuazhong@huawei.com>
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      2c7bcc1d
    • Huazhong Tan's avatar
      net: hns3: remove some unused macros related to queue · 3d93fda0
      Huazhong Tan authored
      There are several macros related queue defined, but never
      used, so remove them.
      Signed-off-by: default avatarHuazhong Tan <tanhuazhong@huawei.com>
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      3d93fda0