The following reply was made to PR kern/181132; it has been noted by GNATS.

From: dfil...@freebsd.org (dfilter service)
To: bug-follo...@freebsd.org
Cc:  
Subject: Re: kern/181132: commit references a PR
Date: Thu,  8 Aug 2013 05:52:54 +0000 (UTC)

 Author: adrian
 Date: Thu Aug  8 05:52:41 2013
 New Revision: 254085
 URL: http://svnweb.freebsd.org/changeset/base/254085
 
 Log:
   Cap the number of streams supported to two for now.
   
   I haven't yet reviewed the Intel driver(s) in more depth to see if
   there are 1x1 NICs that report they support 2 transmit/receive chains..
   if so then we'll have to update this.
   
   Tested:
   
   * Intel 4965, which is a 2x2 device with 3 RX and 2 TX chains.
   
   PR:          kern/181132
 
 Modified:
   head/sys/dev/iwn/if_iwn.c
 
 Modified: head/sys/dev/iwn/if_iwn.c
 ==============================================================================
 --- head/sys/dev/iwn/if_iwn.c  Thu Aug  8 05:41:55 2013        (r254084)
 +++ head/sys/dev/iwn/if_iwn.c  Thu Aug  8 05:52:41 2013        (r254085)
 @@ -638,6 +638,20 @@ iwn_attach(device_t dev)
        if (sc->sc_flags & IWN_FLAG_HAS_11N) {
                ic->ic_rxstream = sc->nrxchains;
                ic->ic_txstream = sc->ntxchains;
 +
 +              /*
 +               * The NICs we currently support cap out at 2x2 support
 +               * separate from the chains being used.
 +               *
 +               * This is a total hack to work around that until some
 +               * per-device method is implemented to return the
 +               * actual stream support.
 +               */
 +              if (ic->ic_rxstream > 2)
 +                      ic->ic_rxstream = 2;
 +              if (ic->ic_txstream > 2)
 +                      ic->ic_txstream = 2;
 +
                ic->ic_htcaps =
                          IEEE80211_HTCAP_SMPS_OFF      /* SMPS mode disabled */
                        | IEEE80211_HTCAP_SHORTGI20     /* short GI in 20MHz */
 _______________________________________________
 svn-src-...@freebsd.org mailing list
 http://lists.freebsd.org/mailman/listinfo/svn-src-all
 To unsubscribe, send any mail to "svn-src-all-unsubscr...@freebsd.org"
 
_______________________________________________
freebsd-wireless@freebsd.org mailing list
http://lists.freebsd.org/mailman/listinfo/freebsd-wireless
To unsubscribe, send any mail to "freebsd-wireless-unsubscr...@freebsd.org"

Reply via email to