Date: Sat, 22 Mar 1997 06:10:03 -0800 (PST) From: Jun-ichiro Itoh <itojun@csl.sony.co.jp> To: freebsd-bugs Subject: Re: i386/3048: multicast support necessery in some drivers. Message-ID: <199703221410.GAA25631@freefall.freebsd.org>
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The following reply was made to PR i386/3048; it has been noted by GNATS.
From: Jun-ichiro Itoh <itojun@csl.sony.co.jp>
To: freebsd-gnats-submit@freebsd.org, itojun@itojun.org
Cc: itojun@csl.sony.co.jp
Subject: Re: i386/3048: multicast support necessery in some drivers.
Date: Sat, 22 Mar 1997 22:58:56 +0900
A quick patch to ep driver would be as follows.
itojun
---
*** if_ep.c- Fri Mar 21 19:18:35 1997
--- if_ep.c Fri Mar 21 19:30:20 1997
***************
*** 131,136 ****
--- 131,138 ----
static void epstart __P((struct ifnet *));
static void epstop __P((struct ep_softc *));
static void epwatchdog __P((struct ifnet *));
+ static size_t ep_countmcast __P((struct ep_softc *));
+ static void ep_setmcast __P((struct ep_softc *));
#if 0
static int send_ID_sequence __P((int));
***************
*** 768,779 ****
outw(BASE + EP_COMMAND, SET_INTR_MASK | S_5_INTS);
! if(ifp->if_flags & IFF_PROMISC)
! outw(BASE + EP_COMMAND, SET_RX_FILTER | FIL_INDIVIDUAL |
! FIL_GROUP | FIL_BRDCST | FIL_ALL);
! else
! outw(BASE + EP_COMMAND, SET_RX_FILTER | FIL_INDIVIDUAL |
! FIL_GROUP | FIL_BRDCST);
/*
* S.B.
--- 770,776 ----
outw(BASE + EP_COMMAND, SET_INTR_MASK | S_5_INTS);
! ep_setmcast(sc);
/*
* S.B.
***************
*** 1486,1497 ****
}
break;
case SIOCADDMULTI:
case SIOCDELMULTI:
! /* Now this driver has no support for programmable
! * multicast filters. If some day it will gain this
! * support this part of code must be extended.
! */
! error=0;
break;
default:
error = EINVAL;
--- 1483,1502 ----
}
break;
case SIOCADDMULTI:
+ error = ether_addmulti(ifr, &sc->arpcom);
+ if (error == ENETRESET) {
+ /* update multicast filter list. */
+ ep_setmcast(sc);
+ error = 0;
+ }
+ break;
case SIOCDELMULTI:
! error = ether_delmulti(ifr, &sc->arpcom);
! if (error == ENETRESET) {
! /* update multicast filter list. */
! ep_setmcast(sc);
! error = 0;
! }
break;
default:
error = EINVAL;
***************
*** 1628,1631 ****
--- 1633,1681 ----
splx(s);
}
+ static size_t
+ ep_countmcast(sc)
+ struct ep_softc *sc;
+ {
+ register struct ether_multi *enm;
+ register struct ether_multistep step;
+ size_t count;
+
+ count = 0;
+ ETHER_FIRST_MULTI(step, &sc->arpcom, enm);
+ while (enm != NULL) {
+ count++;
+ ETHER_NEXT_MULTI(step, enm);
+ }
+
+ return count;
+ }
+
+ static void
+ ep_setmcast(sc)
+ struct ep_softc *sc;
+ {
+ struct ifnet *ifp = (struct ifnet *)sc;
+ int dopromisc = 0;
+
+ if (ifp->if_flags & IFF_PROMISC)
+ dopromisc = 1;
+ else if (ifp->if_flags & IFF_MULTICAST) {
+ if (ifp->if_flags & IFF_ALLMULTI)
+ dopromisc = 1;
+ else if (ep_countmcast(sc))
+ dopromisc = 1;
+ else
+ dopromisc = 0;
+ } else
+ dopromisc = 0;
+
+ if (dopromisc) {
+ outw(BASE + EP_COMMAND, SET_RX_FILTER | FIL_INDIVIDUAL |
+ FIL_GROUP | FIL_BRDCST | FIL_ALL);
+ } else {
+ outw(BASE + EP_COMMAND, SET_RX_FILTER | FIL_INDIVIDUAL |
+ FIL_GROUP | FIL_BRDCST);
+ }
+ }
#endif /* NEP > 0 */
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