Author: marius
Date: Sun May 15 12:51:00 2011
New Revision: 221954
URL: http://svn.freebsd.org/changeset/base/221954

Log:
  When setting media always and not just in case of switching to IFM_AUTO
  clear the options of the current media, i.e. only inherit the instance,
  which matches what NetBSD does. Without this it's really non-intuitive
  that the following sequence:
        ifconfig bge0 media 1000baseT mediaopt full-duplex
        ifconfig bge0 media 100baseTX
  results in 100baseTX full-duplex to be set or that:
        ifconfig bge0 media autoselect mediaopt flowcontrol
        ifconfig bge0 media 1000baseT mediaopt full-duplex
  tries to set 1000baseT full-duplex with flowcontrol, which isn't suported
  und thus fails while the following:
        ifconfig re0 media 1000baseT mediaopt flowcontrol,full-duplex
        ifconfig re0 media autoselect
  just switches to autoselection without flowcontrol.
  
  MFC after:    2 weeks

Modified:
  head/sbin/ifconfig/ifmedia.c

Modified: head/sbin/ifconfig/ifmedia.c
==============================================================================
--- head/sbin/ifconfig/ifmedia.c        Sun May 15 12:39:30 2011        
(r221953)
+++ head/sbin/ifconfig/ifmedia.c        Sun May 15 12:51:00 2011        
(r221954)
@@ -268,13 +268,9 @@ setmedia(const char *val, int d, int s, 
        subtype = get_media_subtype(IFM_TYPE(ifmr->ifm_ulist[0]), val);
 
        strncpy(ifr.ifr_name, name, sizeof(ifr.ifr_name));
-       ifr.ifr_media = (ifmr->ifm_current & ~(IFM_NMASK|IFM_TMASK)) |
+       ifr.ifr_media = (ifmr->ifm_current & IFM_IMASK) |
            IFM_TYPE(ifmr->ifm_ulist[0]) | subtype;
 
-       if ((ifr.ifr_media & IFM_TMASK) == 0) {
-               ifr.ifr_media &= ~(IFM_GMASK | IFM_OMASK);
-       }
-
        ifmr->ifm_current = ifr.ifr_media;
        callback_register(setifmediacallback, (void *)ifmr);
 }
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