1. 15 Nov, 2010 14 commits
  2. 12 Nov, 2010 3 commits
  3. 11 Nov, 2010 15 commits
  4. 10 Nov, 2010 5 commits
    • Gerrit Renker's avatar
      dccp ccid-2: Implementation of circular Ack Vector buffer with overflow handling · b3d14bff
      Gerrit Renker authored
      This completes the implementation of a circular buffer for Ack Vectors, by
      extending the current (linear array-based) implementation.  The changes are:
       (a) An `overflow' flag to deal with the case of overflow. As before, dynamic
           growth of the buffer will not be supported; but code will be added to deal
           robustly with overflowing Ack Vector buffers.
       (b) A `tail_seqno' field. When naively implementing the algorithm of Appendix A
           in RFC 4340, problems arise whenever subsequent Ack Vector records overlap,
           which can bring the entire run length calculation completely out of synch.
           (This is documented on http://www.erg.abdn.ac.uk/users/gerrit/dccp/notes/\
                                                   ack_vectors/tracking_tail_ackno/ .)
       (c) The buffer length is now computed dynamically (i.e. current fill level),
           as the span between head to tail.
      As a result, dccp_ackvec_pending() is now simpler - the #ifdef is no longer
      necessary since buf_empty is always true when IP_DCCP_ACKVEC is not configured.
      Signed-off-by: default avatarGerrit Renker <gerrit@erg.abdn.ac.uk>
    • Gerrit Renker's avatar
      dccp ccid-2: Separate internals of Ack Vectors from option-parsing code · 7d870936
      Gerrit Renker authored
      This patch
       * separates Ack Vector housekeeping code from option-insertion code;
       * shifts option-specific code from ackvec.c into options.c;
       * introduces a dedicated routine to take care of the Ack Vector records;
       * simplifies the dccp_ackvec_insert_avr() routine: the BUG_ON was redundant,
         since the list is automatically arranged in descending order of ack_seqno.
      Signed-off-by: default avatarGerrit Renker <gerrit@erg.abdn.ac.uk>
    • Gerrit Renker's avatar
      dccp ccid-2: Ack Vector interface clean-up · f17a37c9
      Gerrit Renker authored
      This patch brings the Ack Vector interface up to date. Its main purpose is
      to lay the basis for the subsequent patches of this set, which will use the
      new data structure fields and routines.
      There are no real algorithmic changes, rather an adaptation:
       (1) Replaced the static Ack Vector size (2) with a #define so that it can
           be adapted (with low loss / Ack Ratio, a value of 1 works, so 2 seems
           to be sufficient for the moment) and added a solution so that computing
           the ECN nonce will continue to work - even with larger Ack Vectors.
       (2) Replaced the #defines for Ack Vector states with a complete enum.
       (3) Replaced #defines to compute Ack Vector length and state with general
           purpose routines (inlines), and updated code to use these.
       (4) Added a `tail' field (conversion to circular buffer in subsequent patch).
       (5) Updated the (outdated) documentation for Ack Vector struct.
       (6) All sequence number containers now trimmed to 48 bits.
       (7) Removal of unused bits:
           * removed dccpav_ack_nonce from struct dccp_ackvec, since this is already
             redundantly stored in the `dccpavr_ack_nonce' (of Ack Vector record);
           * removed Elapsed Time for Ack Vectors (it was nowhere used);
           * replaced semantics of dccpavr_sent_len with dccpavr_ack_runlen, since
             the code needs to be able to remember the old run length;
           * reduced the de-/allocation routines (redundant / duplicate tests).
      Signed-off-by: default avatarGerrit Renker <gerrit@erg.abdn.ac.uk>
    • Ron Mercer's avatar
    • Ron Mercer's avatar
      qlge: Add firmware info to ethtool get regs. · 673483c7
      Ron Mercer authored
      By default we add firmware information to ethtool get regs.
      Optionally firmware info can instead be sent to log.
      Signed-off-by: default avatarJitendra Kalsaria <jitendra.kalsaria@qlogic.com>
      Signed-off-by: default avatarRon Mercer <ron.mercer@qlogic.com>
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
  5. 09 Nov, 2010 3 commits