git: ifnet: Update and add comment; no functional changes

[Sepherosa Ziehau <sephe@xxxxxxxxxxxxxxxxxxxxxxx>]

commit bc26e11055dc3b13717e1402d28990602ebab618
Author: Sepherosa Ziehau <sephe@dragonflybsd.org>
Date:   Thu May 9 09:21:38 2013 +0800

    ifnet: Update and add comment; no functional changes
    
    - Update various comment
    - Remove no longer applied comment
    - Add comment for ifaddr per-cpu container
    - Add comment for per-cpu ifnet and ifaddr statistics
    - Add comment for ifnet single serializer mode and multiple serializers
      mode
    - Add pseudo code in comment for ifnet multiple transmit queue support

Summary of changes:
 sys/dev/netif/em/if_em.c |  20 ----
 sys/net/if_var.h         | 233 +++++++++++++++++++++++++++++++++++++++--------
 2 files changed, 195 insertions(+), 58 deletions(-)

http://gitweb.dragonflybsd.org/dragonfly.git/commitdiff/bc26e11055dc3b13717e1402d28990602ebab618


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