1. 31 Jul, 2014 30 commits
  2. 30 Jul, 2014 10 commits
    • Vince Bridgers's avatar
      net: stmmac: add platform init/exit for Altera's ARM socfpga · 2d871aa0
      Vince Bridgers authored
      This patch adds platform init/exit functions and modifications to support
      suspend/resume for the Altera Cyclone 5 SOC Ethernet controller. The platform
      exit function puts the controller into reset using the socfpga reset
      controller driver. The platform init function sets up the Synopsys mac by
      first making sure the Ethernet controller is held in reset, programming the
      phy mode through external support logic, then deasserts reset through
      the socfpga reset manager driver.
      Signed-off-by: default avatarVince Bridgers <vbridgers2013@gmail.com>
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      2d871aa0
    • David S. Miller's avatar
      Merge branch 'mlx5-next' · 7aa06bf5
      David S. Miller authored
      Eli Cohen says:
      
      ====================
      mlx5 driver changes related to PCI handling ***
      
      The first of these patches is changing the pci device driver from mlx5_ib to
      mlx5_core in a similar manner it is done in mlx4. This set the grounds for us
      to introduce Ethernet driver for HW which uses mlx5.
      
      The other two patches contain minor fixes.
      ====================
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      7aa06bf5
    • Jack Morgenstein's avatar
      mlx5: Adjust events to use unsigned long param instead of void * · 4d2f9bbb
      Jack Morgenstein authored
      In the event flow, we currently pass only a port number in the
      void *data argument.  Rather than pass a pointer to the event handlers,
      we should use an "unsigned long" parameter, and pass the port number
      value directly.
      
      In the future, if necessary for some events, we can use the unsigned long
      parameter to pass a pointer.
      
      Based on a patch by Eli Cohen <eli@mellanox.com>
      Signed-off-by: default avatarJack Morgenstein <jackm@dev.mellanox.co.il>
      Signed-off-by: default avatarEli Cohen <eli@mellanox.com>
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      4d2f9bbb
    • Jack Morgenstein's avatar
      mlx5: minor fixes (mainly avoidance of hidden casts) · f241e749
      Jack Morgenstein authored
      There were many places where parameters which should be u8/u16 were
      integer type.
      
      Additionally, in 2 places, a check for a non-null pointer was added
      before dereferencing the pointer (this is actually a bug fix).
      Signed-off-by: default avatarJack Morgenstein <jackm@dev.mellanox.co.il>
      Signed-off-by: default avatarEli Cohen <eli@mellanox.com>
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      f241e749
    • Jack Morgenstein's avatar
      mlx5: Move pci device handling from mlx5_ib to mlx5_core · 9603b61d
      Jack Morgenstein authored
      In preparation for a new mlx5 device which is VPI (i.e., ports can be
      either IB or ETH), move the pci device functionality from mlx5_ib
      to mlx5_core.
      
      This involves the following changes:
      1. Move mlx5_core_dev struct out of mlx5_ib_dev. mlx5_core_dev
         is now an independent structure maintained by mlx5_core.
         mlx5_ib_dev now has a pointer to that struct.
         This requires changing a lot of places where the core_dev
         struct was accessed via mlx5_ib_dev (now, this needs to
         be a pointer dereference).
      2. All PCI initializations are now done in mlx5_core. Thus,
         it is now mlx5_core which does pci_register_device (and not
         mlx5_ib, as was previously).
      3. mlx5_ib now registers itself with mlx5_core as an "interface"
         driver. This is very similar to the mechanism employed for
         the mlx4 (ConnectX) driver. Once the HCA is initialized
         (by mlx5_core), it invokes the interface drivers to do
         their initializations.
      4. There is a new event handler which the core registers:
         mlx5_core_event(). This event handler invokes the
         event handlers registered by the interfaces.
      
      Based on a patch by Eli Cohen <eli@mellanox.com>
      Signed-off-by: default avatarJack Morgenstein <jackm@dev.mellanox.co.il>
      Signed-off-by: default avatarEli Cohen <eli@mellanox.com>
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      9603b61d
    • Hannes Frederic Sowa's avatar
      random32: mix in entropy from core to late initcall · 4ada97ab
      Hannes Frederic Sowa authored
      Currently, we have a 3-stage seeding process in prandom():
      
      Phase 1 is from the early actual initialization of prandom()
      subsystem which happens during core_initcall() and remains
      most likely until the beginning of late_initcall() phase.
      Here, the system might not have enough entropy available
      for seeding with strong randomness from the random driver.
      That means, we currently have a 32bit weak LCG() seeding
      the PRNG status register 1 and mixing that successively
      into the other 3 registers just to get it up and running.
      
      Phase 2 starts with late_initcall() phase resp. when the
      random driver has initialized its non-blocking pool with
      enough entropy. At that time, we throw away *all* inner
      state from its 4 registers and do a full reseed with strong
      randomness.
      
      Phase 3 starts right after that and does a periodic reseed
      with random slack of status register 1 by a strong random
      source again.
      
      A problem in phase 1 is that during bootup data structures
      can be initialized, e.g. on module load time, and thus access
      a weakly seeded prandom and are never changed for the rest
      of their live-time, thus carrying along the results from a
      week seed. Lets make sure that current but also future users
      access a possibly better early seeded prandom.
      
      This patch therefore improves phase 1 by trying to make it
      more 'unpredictable' through mixing in seed from a possible
      hardware source. Now, the mix-in xors inner state with the
      outcome of either of the two functions arch_get_random_{,seed}_int(),
      preferably arch_get_random_seed_int() as it likely represents
      a non-deterministic random bit generator in hw rather than
      a cryptographically secure PRNG in hw. However, not all might
      have the first one, so we use the PRNG as a fallback if
      available. As we xor the seed into the current state, the
      worst case would be that a hardware source could be unverifiable
      compromised or backdoored. In that case nevertheless it
      would be as good as our original early seeding function
      prandom_seed_very_weak() since we mix through xor which is
      entropy preserving.
      
      Joint work with Daniel Borkmann.
      Signed-off-by: default avatarDaniel Borkmann <dborkman@redhat.com>
      Signed-off-by: default avatarHannes Frederic Sowa <hannes@stressinduktion.org>
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      4ada97ab
    • David S. Miller's avatar
    • Alexey Perevalov's avatar
      netfilter: nfnetlink_acct: dump unmodified nfacct flags · d24675cb
      Alexey Perevalov authored
      NFNL_MSG_ACCT_GET_CTRZERO modifies dumped flags, in this case
      client see unmodified (uncleared) counter value and cleared
      overquota state - end user doesn't know anything about overquota state,
      unless end user subscribed on overquota report.
      Signed-off-by: default avatarAlexey Perevalov <a.perevalov@samsung.com>
      Signed-off-by: default avatarPablo Neira Ayuso <pablo@netfilter.org>
      d24675cb
    • Linus Torvalds's avatar
      Merge tag 'devicetree-for-linus' of git://git.secretlab.ca/git/linux · 26bcd8b7
      Linus Torvalds authored
      Pull Exynos platform DT fix from Grant Likely:
       "Device tree Exynos bug fix for v3.16-rc7
      
        This bug fix has been brewing for a while.  I hate sending it to you
        so late, but I only got confirmation that it solves the problem this
        past weekend.  The diff looks big for a bug fix, but the majority of
        it is only executed in the Exynos quirk case.  Unfortunately it
        required splitting early_init_dt_scan() in two and adding quirk
        handling in the middle of it on ARM.
      
        Exynos has buggy firmware that puts bad data into the memory node.
        Commit 1c2f87c2 ("ARM: Get rid of meminfo") exposed the bug by
        dropping the artificial upper bound on the number of memory banks that
        can be added.  Exynos fails to boot after that commit.  This branch
        fixes it by splitting the early DT parse function and inserting a
        fixup hook.  Exynos uses the hook to correct the DT before parsing
        memory regions"
      
      * tag 'devicetree-for-linus' of git://git.secretlab.ca/git/linux:
        arm: Add devicetree fixup machine function
        of: Add memory limiting function for flattened devicetrees
        of: Split early_init_dt_scan into two parts
      26bcd8b7
    • Linus Torvalds's avatar
      Merge tag 'stable/for-linus-3.16-rc7-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip · acba648d
      Linus Torvalds authored
      Pull Xen fix from David Vrabel:
       "Fix BUG when trying to expand the grant table.  This seems to occur
        often during boot with Ubuntu 14.04 PV guests"
      
      * tag 'stable/for-linus-3.16-rc7-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip:
        x86/xen: safely map and unmap grant frames when in atomic context
      acba648d