Index: share/man/man4/bge.4
===================================================================
--- share/man/man4/bge.4	(revision 249529)
+++ share/man/man4/bge.4	(working copy)
@@ -197,6 +197,25 @@
 Allow the ASF feature for cooperating with IPMI.
 Can cause system lockup problems on a small number of systems.
 Enabled by default.
+.It Va hw.bge.bge_rxd
+Controls the size of the ring buffer used to enqueue data from the hardware.
+Defaults to 512.
+.It Va hw.bge.bge_rx_coal_ticks
+Controls the maximum time to wait for RX packets before updating the status to
+the host.
+Defaults to 150ms.
+.It Va hw.bge.bge_tx_coal_ticks
+Controls the maximum time to wait for TX packets before updating the status to
+the host.
+Defaults to 150ms.
+.It Va hw.bge.bge_rx_max_coal_bds
+Controls the maximum number of RX packes to be processed before updating the
+status to the host.
+Defaults to 10.
+.It Va hw.bge.bge_tx_max_coal_bds
+Controls the maximum number of TX packes to be processed before updating the
+status to the host.
+Defaults to 10.
 .It Va dev.bge.%d.msi
 Non-zero value enables MSI support on the Ethernet hardware.
 The default value is 1.
@@ -243,6 +262,10 @@
 The device has stopped responding to the network, or there is a problem with
 the network connection (cable).
 .El
+.Sh SUPPORT
+For general information and support,
+go to the Broadcom NIC Open Source Developer Resource Site:
+.Pa http://www.broadcom.com/support/ethernet_nic/open_source.php .
 .Sh SEE ALSO
 .Xr altq 4 ,
 .Xr arp 4 ,
Index: sys/dev/bge/if_bge.c
===================================================================
--- sys/dev/bge/if_bge.c	(revision 249529)
+++ sys/dev/bge/if_bge.c	(working copy)
@@ -530,8 +530,18 @@
 DRIVER_MODULE(miibus, bge, miibus_driver, miibus_devclass, 0, 0);
 
 static int bge_allow_asf = 1;
+static int bge_rxd = BGE_STD_RX_RING_SZ;
+static int bge_rx_coal_ticks = 150;
+static int bge_tx_coal_ticks = 150;
+static int bge_rx_max_coal_bds = 10;
+static int bge_tx_max_coal_bds = 10;
 
 TUNABLE_INT("hw.bge.allow_asf", &bge_allow_asf);
+TUNABLE_INT("hw.bge.rxd", &bge_rxd);
+TUNABLE_INT("hw.bge.rx_int_delay", &bge_rx_coal_ticks);
+TUNABLE_INT("hw.bge.tx_int_delay", &bge_tx_coal_ticks);
+TUNABLE_INT("hw.bge.rx_coal_desc", &bge_rx_max_coal_bds);
+TUNABLE_INT("hw.bge.tx_coal_desc", &bge_tx_max_coal_bds);
 
 static SYSCTL_NODE(_hw, OID_AUTO, bge, CTLFLAG_RD, 0, "BGE driver parameters");
 SYSCTL_INT(_hw_bge, OID_AUTO, allow_asf, CTLFLAG_RD, &bge_allow_asf, 0,
@@ -1449,12 +1459,12 @@
 {
 	int error, i;
 
-	bzero(sc->bge_ldata.bge_rx_std_ring, BGE_STD_RX_RING_SZ);
+	bzero(sc->bge_ldata.bge_rx_std_ring, bge_rxd);
 	sc->bge_std = 0;
-	for (i = 0; i < BGE_STD_RX_RING_CNT; i++) {
+	for (i = 0; i < bge_rxd; i++) {
 		if ((error = bge_newbuf_std(sc, i)) != 0)
 			return (error);
-		BGE_INC(sc->bge_std, BGE_STD_RX_RING_CNT);
+		BGE_INC(sc->bge_std, bge_rxd);
 	}
 
 	bus_dmamap_sync(sc->bge_cdata.bge_rx_std_ring_tag,
@@ -3635,10 +3645,10 @@
 
 	/* Set default tuneable values. */
 	sc->bge_stat_ticks = BGE_TICKS_PER_SEC;
-	sc->bge_rx_coal_ticks = 150;
-	sc->bge_tx_coal_ticks = 150;
-	sc->bge_rx_max_coal_bds = 10;
-	sc->bge_tx_max_coal_bds = 10;
+	sc->bge_rx_coal_ticks = bge_rx_coal_ticks;
+	sc->bge_tx_coal_ticks = bge_tx_coal_ticks;
+	sc->bge_rx_max_coal_bds = bge_rx_max_coal_bds;
+	sc->bge_tx_max_coal_bds = bge_tx_max_coal_bds;
 
 	/* Initialize checksum features to use. */
 	sc->bge_csum_features = BGE_CSUM_FEATURES;