Author: adrian
Date: Sun Mar 15 21:30:20 2015
New Revision: 280119
URL: https://svnweb.freebsd.org/changeset/base/280119
Log:
Workaround delays caused by vmem_check().
PR: kern/197143
Submitted by: Andriy Voskoboinyk <s3er...@gmail.com>
Modified:
head/sys/dev/wpi/if_wpi.c
head/sys/dev/wpi/if_wpireg.h
Modified: head/sys/dev/wpi/if_wpi.c
==============================================================================
--- head/sys/dev/wpi/if_wpi.c Sun Mar 15 21:29:36 2015 (r280118)
+++ head/sys/dev/wpi/if_wpi.c Sun Mar 15 21:30:20 2015 (r280119)
@@ -2188,10 +2188,12 @@ wpi_notif_intr(struct wpi_softc *sc)
break;
}
}
- }
- /* Tell the firmware what we have processed. */
- wpi_update_rx_ring(sc);
+ if (sc->rxq.cur % 8 == 0) {
+ /* Tell the firmware what we have processed. */
+ wpi_update_rx_ring(sc);
+ }
+ }
}
/*
Modified: head/sys/dev/wpi/if_wpireg.h
==============================================================================
--- head/sys/dev/wpi/if_wpireg.h Sun Mar 15 21:29:36 2015
(r280118)
+++ head/sys/dev/wpi/if_wpireg.h Sun Mar 15 21:30:20 2015
(r280119)
@@ -20,7 +20,13 @@
#define WPI_TX_RING_COUNT 256
#define WPI_TX_RING_LOMARK 192
#define WPI_TX_RING_HIMARK 224
+
+#ifdef DIAGNOSTIC
+#define WPI_RX_RING_COUNT_LOG 8
+#else
#define WPI_RX_RING_COUNT_LOG 6
+#endif
+
#define WPI_RX_RING_COUNT (1 << WPI_RX_RING_COUNT_LOG)
#define WPI_NTXQUEUES 8
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