[src/trunk]: src/sys/dev/pci Make the iwm(4) hardware receive filter pass mul...

[nonaka <nonaka%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/447ea3605158
branches:  trunk
changeset: 336234:447ea3605158
user:      nonaka <nonaka%NetBSD.org@localhost>
date:      Fri Feb 20 16:16:06 2015 +0000

description:
Make the iwm(4) hardware receive filter pass multicast traffic from OpenBSD.
Fixes inet6 autoconf, for example.

diffstat:

 sys/dev/pci/if_iwm.c |  38 ++++++++++++++++++++++++++++++++++++--
 1 files changed, 36 insertions(+), 2 deletions(-)

diffs (80 lines):

diff -r d67ddbf61ea6 -r 447ea3605158 sys/dev/pci/if_iwm.c
--- a/sys/dev/pci/if_iwm.c      Fri Feb 20 15:03:53 2015 +0000
+++ b/sys/dev/pci/if_iwm.c      Fri Feb 20 16:16:06 2015 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: if_iwm.c,v 1.10 2015/02/20 15:03:53 nonaka Exp $       */
+/*     $NetBSD: if_iwm.c,v 1.11 2015/02/20 16:16:06 nonaka Exp $       */
 /*     OpenBSD: if_iwm.c,v 1.18 2015/02/11 01:12:42 brad Exp   */
 
 /*
@@ -105,7 +105,7 @@
  */
 
 #include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: if_iwm.c,v 1.10 2015/02/20 15:03:53 nonaka Exp $");
+__KERNEL_RCSID(0, "$NetBSD: if_iwm.c,v 1.11 2015/02/20 16:16:06 nonaka Exp $");
 
 #include <sys/param.h>
 #include <sys/conf.h>
@@ -254,6 +254,7 @@
 static void    iwm_apm_config(struct iwm_softc *);
 static int     iwm_apm_init(struct iwm_softc *);
 static void    iwm_apm_stop(struct iwm_softc *);
+static int     iwm_allow_mcast(struct iwm_softc *);
 static int     iwm_start_hw(struct iwm_softc *);
 static void    iwm_stop_device(struct iwm_softc *);
 static void    iwm_set_pwr(struct iwm_softc *);
@@ -5154,6 +5155,10 @@
        int error;
 
        in->in_assoc = 0;
+
+       if ((error = iwm_allow_mcast(sc)) != 0)
+               return error;
+
        if ((error = iwm_mvm_mac_ctxt_add(sc, in)) != 0) {
                DPRINTF(("%s: failed to add MAC\n", DEVNAME(sc)));
                return error;
@@ -5676,6 +5681,32 @@
        return error;
 }
 
+/* Allow multicast from our BSSID. */
+static int
+iwm_allow_mcast(struct iwm_softc *sc)
+{
+       struct ieee80211com *ic = &sc->sc_ic;
+       struct ieee80211_node *ni = ic->ic_bss;
+       struct iwm_mcast_filter_cmd *cmd;
+       size_t size;
+       int error;
+
+       size = roundup(sizeof(*cmd), 4);
+       cmd = kmem_intr_zalloc(size, KM_NOSLEEP);
+       if (cmd == NULL)
+               return ENOMEM;
+       cmd->filter_own = 1;
+       cmd->port_id = 0;
+       cmd->count = 0;
+       cmd->pass_all = 1;
+       IEEE80211_ADDR_COPY(cmd->bssid, ni->ni_bssid);
+
+       error = iwm_mvm_send_cmd_pdu(sc, IWM_MCAST_FILTER_CMD,
+           IWM_CMD_SYNC, size, cmd);
+       kmem_intr_free(cmd, size);
+       return error;
+}
+
 /*
  * ifnet interfaces
  */
@@ -6259,6 +6290,9 @@
                        wakeup(&sc->sc_auth_prot);
                        break; }
 
+               case IWM_MCAST_FILTER_CMD:
+                       break;
+
                default:
                        aprint_error_dev(sc->sc_dev,
                            "frame %d/%d %x UNHANDLED (this should "