Author: adrian
Date: Sun May 3 23:21:16 2015
New Revision: 282388
URL: https://svnweb.freebsd.org/changeset/base/282388
Log:
Improve beacon miss detection.
PR: kern/197143
Submitted by: Andriy Voskoboinyk <s3er...@gmail.com>
Modified:
head/sys/dev/wpi/if_wpi.c
Modified: head/sys/dev/wpi/if_wpi.c
==============================================================================
--- head/sys/dev/wpi/if_wpi.c Sun May 3 23:18:28 2015 (r282387)
+++ head/sys/dev/wpi/if_wpi.c Sun May 3 23:21:16 2015 (r282388)
@@ -2115,11 +2115,14 @@ wpi_notif_intr(struct wpi_softc *sc)
{
struct wpi_beacon_missed *miss =
(struct wpi_beacon_missed *)(desc + 1);
- uint32_t misses;
+ uint32_t expected, misses, received;
bus_dmamap_sync(sc->rxq.data_dmat, data->map,
BUS_DMASYNC_POSTREAD);
+
misses = le32toh(miss->consecutive);
+ expected = le32toh(miss->expected);
+ received = le32toh(miss->received);
DPRINTF(sc, WPI_DEBUG_BMISS,
"%s: beacons missed %d/%d\n", __func__, misses,
@@ -2127,7 +2130,9 @@ wpi_notif_intr(struct wpi_softc *sc)
if (vap->iv_state == IEEE80211_S_RUN &&
(ic->ic_flags & IEEE80211_F_SCAN) == 0 &&
- misses >= vap->iv_bmissthreshold)
+ (misses >= vap->iv_bmissthreshold ||
+ (received == 0 &&
+ expected >= vap->iv_bmissthreshold)))
ieee80211_beacon_miss(ic);
break;
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