K 10
svn:author
V 7
glebius
K 8
svn:date
V 27
2015-04-26T16:44:59.635070Z
K 7
svn:log
V 1304
Convert miibus(4) to new ifmedia KPI.  This requires some changes.

o miibus(4) gets rid of interface knowledge entirely. It includes only
  if_media.h, to get media macros.  It doesn't include if.h.
o Argument list to mii_attach() is reduced by the function pointers, that
  now live in ifops.
o struct mii_data now stores mii_media, which caches value of currently
  selected media.
  XXX: it might be, that mii_media, mii_media_active and mii_media_status
  can be collapsed into one word, but that's not entirely clear. So take
  conservative approach.
o struct mii_data now stores array of available mediae, accessible by the
  NIC driver.
  XXX: since miibus can hold several phys, the array is allocated
  dynamically.  The size of array MII_MAX_MEDIAE might need a bump in
  future, in case if new phys ever appear.  Or a more smart allocation
  method should be coded. However, it looks like future NICs aren't going
  to use miibus(4), and definitely aren't going to carry > 1 phys.
o phy_status, phy_service and phy_reset now take media as argument, and
  so do some internal functions.
  Before, this functions used to take current media from struct ifmedia,
  and ifmedia_ioctl() used to restore it to previous value, in case of
  and error.

Sponsored by:	Netflix
Sponsored by:	Nginx, Inc.

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