1. 11 Jan, 2016 8 commits
    • David S. Miller's avatar
      Merge branch 'bnxt_en-zeropad-fw-and-reset' · 0652cb5b
      David S. Miller authored
      Michael Chan says:
      
      ====================
      bnxt_en: Zero pad fw messages and add fw reset.
      
      2 patches related to firmware for net-next.
      ====================
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      0652cb5b
    • Rob Swindell's avatar
      bnxt_en: Reset embedded processor after applying firmware upgrade · d2d6318c
      Rob Swindell authored
      Use HWRM_FW_RESET command to request a self-reset of the embedded
      processor(s) after successfully applying a firmware update. For boot
      processor, the self-reset is currently deferred until the next PCIe reset.
      Signed-off-by: default avatarRob Swindell <swindell@broadcom.com>
      Signed-off-by: default avatarMichael Chan <mchan@broadcom.com>
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      d2d6318c
    • Michael Chan's avatar
      bnxt_en: Zero pad firmware messages to 128 bytes. · d79979a1
      Michael Chan authored
      For future compatibility, zero pad all messages that the driver sends
      to the firmware to 128 bytes.  If these messages are extended in the
      future with new byte enables, zero padding these messages now will
      guarantee future compatibility.
      Signed-off-by: default avatarMichael Chan <mchan@broadcom.com>
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      d79979a1
    • Daniel Borkmann's avatar
      net, sched: add clsact qdisc · 1f211a1b
      Daniel Borkmann authored
      This work adds a generalization of the ingress qdisc as a qdisc holding
      only classifiers. The clsact qdisc works on ingress, but also on egress.
      In both cases, it's execution happens without taking the qdisc lock, and
      the main difference for the egress part compared to prior version of [1]
      is that this can be applied with _any_ underlying real egress qdisc (also
      classless ones).
      
      Besides solving the use-case of [1], that is, allowing for more programmability
      on assigning skb->priority for the mqprio case that is supported by most
      popular 10G+ NICs, it also opens up a lot more flexibility for other tc
      applications. The main work on classification can already be done at clsact
      egress time if the use-case allows and state stored for later retrieval
      f.e. again in skb->priority with major/minors (which is checked by most
      classful qdiscs before consulting tc_classify()) and/or in other skb fields
      like skb->tc_index for some light-weight post-processing to get to the
      eventual classid in case of a classful qdisc. Another use case is that
      the clsact egress part allows to have a central egress counterpart to
      the ingress classifiers, so that classifiers can easily share state (e.g.
      in cls_bpf via eBPF maps) for ingress and egress.
      
      Currently, default setups like mq + pfifo_fast would require for this to
      use, for example, prio qdisc instead (to get a tc_classify() run) and to
      duplicate the egress classifier for each queue. With clsact, it allows
      for leaving the setup as is, it can additionally assign skb->priority to
      put the skb in one of pfifo_fast's bands and it can share state with maps.
      Moreover, we can access the skb's dst entry (f.e. to retrieve tclassid)
      w/o the need to perform a skb_dst_force() to hold on to it any longer. In
      lwt case, we can also use this facility to setup dst metadata via cls_bpf
      (bpf_skb_set_tunnel_key()) without needing a real egress qdisc just for
      that (case of IFF_NO_QUEUE devices, for example).
      
      The realization can be done without any changes to the scheduler core
      framework. All it takes is that we have two a-priori defined minors/child
      classes, where we can mux between ingress and egress classifier list
      (dev->ingress_cl_list and dev->egress_cl_list, latter stored close to
      dev->_tx to avoid extra cacheline miss for moderate loads). The egress
      part is a bit similar modelled to handle_ing() and patched to a noop in
      case the functionality is not used. Both handlers are now called
      sch_handle_ingress() and sch_handle_egress(), code sharing among the two
      doesn't seem practical as there are various minor differences in both
      paths, so that making them conditional in a single handler would rather
      slow things down.
      
      Full compatibility to ingress qdisc is provided as well. Since both
      piggyback on TC_H_CLSACT, only one of them (ingress/clsact) can exist
      per netdevice, and thus ingress qdisc specific behaviour can be retained
      for user space. This means, either a user does 'tc qdisc add dev foo ingress'
      and configures ingress qdisc as usual, or the 'tc qdisc add dev foo clsact'
      alternative, where both, ingress and egress classifier can be configured
      as in the below example. ingress qdisc supports attaching classifier to any
      minor number whereas clsact has two fixed minors for muxing between the
      lists, therefore to not break user space setups, they are better done as
      two separate qdiscs.
      
      I decided to extend the sch_ingress module with clsact functionality so
      that commonly used code can be reused, the module is being aliased with
      sch_clsact so that it can be auto-loaded properly. Alternative would have been
      to add a flag when initializing ingress to alter its behaviour plus aliasing
      to a different name (as it's more than just ingress). However, the first would
      end up, based on the flag, choosing the new/old behaviour by calling different
      function implementations to handle each anyway, the latter would require to
      register ingress qdisc once again under different alias. So, this really begs
      to provide a minimal, cleaner approach to have Qdisc_ops and Qdisc_class_ops
      by its own that share callbacks used by both.
      
      Example, adding qdisc:
      
         # tc qdisc add dev foo clsact
         # tc qdisc show dev foo
         qdisc mq 0: root
         qdisc pfifo_fast 0: parent :1 bands 3 priomap  1 2 2 2 1 2 0 0 1 1 1 1 1 1 1 1
         qdisc pfifo_fast 0: parent :2 bands 3 priomap  1 2 2 2 1 2 0 0 1 1 1 1 1 1 1 1
         qdisc pfifo_fast 0: parent :3 bands 3 priomap  1 2 2 2 1 2 0 0 1 1 1 1 1 1 1 1
         qdisc pfifo_fast 0: parent :4 bands 3 priomap  1 2 2 2 1 2 0 0 1 1 1 1 1 1 1 1
         qdisc clsact ffff: parent ffff:fff1
      
      Adding filters (deleting, etc works analogous by specifying ingress/egress):
      
         # tc filter add dev foo ingress bpf da obj bar.o sec ingress
         # tc filter add dev foo egress  bpf da obj bar.o sec egress
         # tc filter show dev foo ingress
         filter protocol all pref 49152 bpf
         filter protocol all pref 49152 bpf handle 0x1 bar.o:[ingress] direct-action
         # tc filter show dev foo egress
         filter protocol all pref 49152 bpf
         filter protocol all pref 49152 bpf handle 0x1 bar.o:[egress] direct-action
      
      A 'tc filter show dev foo' or 'tc filter show dev foo parent ffff:' will
      show an empty list for clsact. Either using the parent names (ingress/egress)
      or specifying the full major/minor will then show the related filter lists.
      
      Prior work on a mqprio prequeue() facility [1] was done mainly by John Fastabend.
      
        [1] http://patchwork.ozlabs.org/patch/512949/Signed-off-by: default avatarDaniel Borkmann <daniel@iogearbox.net>
      Acked-by: default avatarJohn Fastabend <john.r.fastabend@intel.com>
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      1f211a1b
    • Andrew Lunn's avatar
      ethernet: amd: au1000: Remove pointless warning · ede55997
      Andrew Lunn authored
      The warning about being able to read any MDIO device, not just the
      attached ethernet devices PHY applies to all MDIO drivers. So remove
      it. This also removes a reference to a member in phy_device which has
      moved.
      Signed-off-by: default avatarAndrew Lunn <andrew@lunn.ch>
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      ede55997
    • Andrew Lunn's avatar
      staging: netlogic: Fix build error due to missed API change · 3fe01e24
      Andrew Lunn authored
      Fix a number of build errors due to moving the phy_map and centralizing
      interrupt allocation.
      Signed-off-by: default avatarAndrew Lunn <andrew@lunn.ch>
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      3fe01e24
    • Guenter Roeck's avatar
      net: ethernet: faraday: Use phy_find_first() instead of open coding it · e574f398
      Guenter Roeck authored
      Use phy_find_first() to find the first phy device instead of
      open coding it.
      
      Cc: Andrew Lunn <andrew@lunn.ch>
      Signed-off-by: default avatarGuenter Roeck <linux@roeck-us.net>
      Acked-by: default avatarAndrew Lunn <andrew@lunn.ch>
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      e574f398
    • Guenter Roeck's avatar
      net: ethernet: broadcom: Fix build errors · ee64f08e
      Guenter Roeck authored
      Commit 7f854420 ("phy: Add API for {un}registering an mdio device to
      a bus") introduces an API to access mii_bus structures, but missed to
      update the sb1250 driver. This results in the following build error.
      
      drivers/net/ethernet/broadcom/sb1250-mac.c: In function 'sbmac_mii_probe':
      drivers/net/ethernet/broadcom/sb1250-mac.c:2360:24: error:
      	'struct mii_bus' has no member named 'phy_map'
      
      Use phy_find_first() instead of open coding it.
      
      Commit 2220943a ("phy: Centralise print about attached phy") introduces
      the following build error.
      
      drivers/net/ethernet/broadcom/sb1250-mac.c: In function 'sbmac_mii_probe':
      drivers/net/ethernet/broadcom/sb1250-mac.c:2383:20: error: 'phydev' undeclared
      
      Fixes: 7f854420 ("phy: Add API for {un}registering an mdio device to a bus")
      Fixes: 2220943a ("phy: Centralise print about attached phy")
      Cc: Andrew Lunn <andrew@lunn.ch>
      Signed-off-by: default avatarGuenter Roeck <linux@roeck-us.net>
      Acked-by: default avatarAndrew Lunn <andrew@lunn.ch>
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      ee64f08e
  2. 10 Jan, 2016 24 commits
  3. 09 Jan, 2016 8 commits