svn commit: r207554 - in head/sys: arm/at91 arm/xscale/ixp425 dev/ae dev/an dev/ath dev/bwi dev/bwn dev/ce dev/cm dev/cp dev/cs dev/ctau dev/cx dev/cxgb dev/ed dev/ep dev/ex dev/fe dev/ie dev/iicbu...

Maxim Sobolev sobomax at FreeBSD.org
Mon May 3 07:32:51 UTC 2010


Author: sobomax
Date: Mon May  3 07:32:50 2010
New Revision: 207554
URL: http://svn.freebsd.org/changeset/base/207554

Log:
  Add new tunable 'net.link.ifqmaxlen' to set default send interface
  queue length. The default value for this parameter is 50, which is
  quite low for many of today's uses and the only way to modify this
  parameter right now is to edit if_var.h file. Also add read-only
  sysctl with the same name, so that it's possible to retrieve the
  current value.
  
  MFC after:	1 month

Modified:
  head/sys/arm/at91/if_ate.c
  head/sys/arm/xscale/ixp425/if_npe.c
  head/sys/dev/ae/if_ae.c
  head/sys/dev/an/if_an.c
  head/sys/dev/ath/if_ath.c
  head/sys/dev/bwi/if_bwi.c
  head/sys/dev/bwn/if_bwn.c
  head/sys/dev/ce/if_ce.c
  head/sys/dev/cm/smc90cx6.c
  head/sys/dev/cp/if_cp.c
  head/sys/dev/cs/if_cs.c
  head/sys/dev/ctau/if_ct.c
  head/sys/dev/cx/if_cx.c
  head/sys/dev/cxgb/cxgb_main.c
  head/sys/dev/ed/if_ed.c
  head/sys/dev/ep/if_ep.c
  head/sys/dev/ex/if_ex.c
  head/sys/dev/fe/if_fe.c
  head/sys/dev/ie/if_ie.c
  head/sys/dev/iicbus/if_ic.c
  head/sys/dev/ipw/if_ipw.c
  head/sys/dev/iwi/if_iwi.c
  head/sys/dev/iwn/if_iwn.c
  head/sys/dev/le/lance.c
  head/sys/dev/malo/if_malo.c
  head/sys/dev/mwl/if_mwl.c
  head/sys/dev/my/if_my.c
  head/sys/dev/nxge/if_nxge.c
  head/sys/dev/pdq/pdq_ifsubr.c
  head/sys/dev/ppbus/if_plip.c
  head/sys/dev/ral/rt2560.c
  head/sys/dev/ral/rt2661.c
  head/sys/dev/sbni/if_sbni.c
  head/sys/dev/smc/if_smc.c
  head/sys/dev/sn/if_sn.c
  head/sys/dev/snc/dp83932.c
  head/sys/dev/usb/net/uhso.c
  head/sys/dev/usb/net/usb_ethernet.c
  head/sys/dev/usb/wlan/if_rum.c
  head/sys/dev/usb/wlan/if_run.c
  head/sys/dev/usb/wlan/if_uath.c
  head/sys/dev/usb/wlan/if_upgt.c
  head/sys/dev/usb/wlan/if_ural.c
  head/sys/dev/usb/wlan/if_urtw.c
  head/sys/dev/usb/wlan/if_zyd.c
  head/sys/dev/vx/if_vx.c
  head/sys/dev/wi/if_wi.c
  head/sys/dev/wl/if_wl.c
  head/sys/dev/wpi/if_wpi.c
  head/sys/dev/xe/if_xe.c
  head/sys/mips/adm5120/if_admsw.c
  head/sys/mips/atheros/if_arge.c
  head/sys/net/if.c
  head/sys/net/if_ef.c
  head/sys/net/if_gif.c
  head/sys/net/if_gre.c
  head/sys/net/if_stf.c
  head/sys/net80211/ieee80211.c
  head/sys/netgraph/ng_eiface.c
  head/sys/netgraph/ng_fec.c
  head/sys/netgraph/ng_iface.c
  head/sys/netgraph/ng_tty.c
  head/sys/pci/if_rl.c

Modified: head/sys/arm/at91/if_ate.c
==============================================================================
--- head/sys/arm/at91/if_ate.c	Mon May  3 07:32:24 2010	(r207553)
+++ head/sys/arm/at91/if_ate.c	Mon May  3 07:32:50 2010	(r207554)
@@ -272,8 +272,8 @@ ate_attach(device_t dev)
 	ifp->if_ioctl = ateioctl;
 	ifp->if_init = ateinit;
 	ifp->if_baudrate = 10000000;
-	IFQ_SET_MAXLEN(&ifp->if_snd, IFQ_MAXLEN);
-	ifp->if_snd.ifq_drv_maxlen = IFQ_MAXLEN;
+	IFQ_SET_MAXLEN(&ifp->if_snd, ifqmaxlen);
+	ifp->if_snd.ifq_drv_maxlen = ifqmaxlen;
 	IFQ_SET_READY(&ifp->if_snd);
 	ifp->if_linkmib = &sc->mibdata;
 	ifp->if_linkmiblen = sizeof(sc->mibdata);

Modified: head/sys/arm/xscale/ixp425/if_npe.c
==============================================================================
--- head/sys/arm/xscale/ixp425/if_npe.c	Mon May  3 07:32:24 2010	(r207553)
+++ head/sys/arm/xscale/ixp425/if_npe.c	Mon May  3 07:32:50 2010	(r207554)
@@ -360,7 +360,7 @@ npe_attach(device_t dev)
 	ifp->if_ioctl = npeioctl;
 	ifp->if_init = npeinit;
 	IFQ_SET_MAXLEN(&ifp->if_snd, sc->txdma.nbuf - 1);
-	ifp->if_snd.ifq_drv_maxlen = IFQ_MAXLEN;
+	ifp->if_snd.ifq_drv_maxlen = ifqmaxlen;
 	IFQ_SET_READY(&ifp->if_snd);
 	ifp->if_linkmib = &sc->mibdata;
 	ifp->if_linkmiblen = sizeof(sc->mibdata);

Modified: head/sys/dev/ae/if_ae.c
==============================================================================
--- head/sys/dev/ae/if_ae.c	Mon May  3 07:32:24 2010	(r207553)
+++ head/sys/dev/ae/if_ae.c	Mon May  3 07:32:50 2010	(r207554)
@@ -378,7 +378,7 @@ ae_attach(device_t dev)
 	ifp->if_init = ae_init;
 	ifp->if_capabilities = IFCAP_VLAN_MTU | IFCAP_VLAN_HWTAGGING;
 	ifp->if_hwassist = 0;
-	ifp->if_snd.ifq_drv_maxlen = IFQ_MAXLEN;
+	ifp->if_snd.ifq_drv_maxlen = ifqmaxlen;
 	IFQ_SET_MAXLEN(&ifp->if_snd, ifp->if_snd.ifq_drv_maxlen);
 	IFQ_SET_READY(&ifp->if_snd);
 	if (pci_find_extcap(dev, PCIY_PMG, &pmc) == 0) {

Modified: head/sys/dev/an/if_an.c
==============================================================================
--- head/sys/dev/an/if_an.c	Mon May  3 07:32:24 2010	(r207553)
+++ head/sys/dev/an/if_an.c	Mon May  3 07:32:50 2010	(r207554)
@@ -767,8 +767,8 @@ an_attach(struct an_softc *sc, int flags
 	ifp->if_start = an_start;
 	ifp->if_init = an_init;
 	ifp->if_baudrate = 10000000;
-	IFQ_SET_MAXLEN(&ifp->if_snd, IFQ_MAXLEN);
-	ifp->if_snd.ifq_drv_maxlen = IFQ_MAXLEN;
+	IFQ_SET_MAXLEN(&ifp->if_snd, ifqmaxlen);
+	ifp->if_snd.ifq_drv_maxlen = ifqmaxlen;
 	IFQ_SET_READY(&ifp->if_snd);
 
 	bzero(sc->an_config.an_nodename, sizeof(sc->an_config.an_nodename));

Modified: head/sys/dev/ath/if_ath.c
==============================================================================
--- head/sys/dev/ath/if_ath.c	Mon May  3 07:32:24 2010	(r207553)
+++ head/sys/dev/ath/if_ath.c	Mon May  3 07:32:50 2010	(r207554)
@@ -562,8 +562,8 @@ ath_attach(u_int16_t devid, struct ath_s
 	ifp->if_start = ath_start;
 	ifp->if_ioctl = ath_ioctl;
 	ifp->if_init = ath_init;
-	IFQ_SET_MAXLEN(&ifp->if_snd, IFQ_MAXLEN);
-	ifp->if_snd.ifq_drv_maxlen = IFQ_MAXLEN;
+	IFQ_SET_MAXLEN(&ifp->if_snd, ifqmaxlen);
+	ifp->if_snd.ifq_drv_maxlen = ifqmaxlen;
 	IFQ_SET_READY(&ifp->if_snd);
 
 	ic->ic_ifp = ifp;

Modified: head/sys/dev/bwi/if_bwi.c
==============================================================================
--- head/sys/dev/bwi/if_bwi.c	Mon May  3 07:32:24 2010	(r207553)
+++ head/sys/dev/bwi/if_bwi.c	Mon May  3 07:32:50 2010	(r207554)
@@ -461,8 +461,8 @@ bwi_attach(struct bwi_softc *sc)
 	ifp->if_init = bwi_init;
 	ifp->if_ioctl = bwi_ioctl;
 	ifp->if_start = bwi_start;
-	IFQ_SET_MAXLEN(&ifp->if_snd, IFQ_MAXLEN);
-	ifp->if_snd.ifq_drv_maxlen = IFQ_MAXLEN;
+	IFQ_SET_MAXLEN(&ifp->if_snd, ifqmaxlen);
+	ifp->if_snd.ifq_drv_maxlen = ifqmaxlen;
 	IFQ_SET_READY(&ifp->if_snd);
 	callout_init_mtx(&sc->sc_watchdog_timer, &sc->sc_mtx, 0);
 

Modified: head/sys/dev/bwn/if_bwn.c
==============================================================================
--- head/sys/dev/bwn/if_bwn.c	Mon May  3 07:32:24 2010	(r207553)
+++ head/sys/dev/bwn/if_bwn.c	Mon May  3 07:32:50 2010	(r207554)
@@ -1193,8 +1193,8 @@ bwn_attach_pre(struct bwn_softc *sc)
 	ifp->if_init = bwn_init;
 	ifp->if_ioctl = bwn_ioctl;
 	ifp->if_start = bwn_start;
-	IFQ_SET_MAXLEN(&ifp->if_snd, IFQ_MAXLEN);
-	ifp->if_snd.ifq_drv_maxlen = IFQ_MAXLEN;
+	IFQ_SET_MAXLEN(&ifp->if_snd, ifqmaxlen);
+	ifp->if_snd.ifq_drv_maxlen = ifqmaxlen;
 	IFQ_SET_READY(&ifp->if_snd);
 
 	return (0);

Modified: head/sys/dev/ce/if_ce.c
==============================================================================
--- head/sys/dev/ce/if_ce.c	Mon May  3 07:32:24 2010	(r207553)
+++ head/sys/dev/ce/if_ce.c	Mon May  3 07:32:50 2010	(r207554)
@@ -701,9 +701,9 @@ static int ce_attach (device_t dev)
 #endif
 			continue;
 		}
-		d->queue.ifq_maxlen	= IFQ_MAXLEN;
-		d->hi_queue.ifq_maxlen	= IFQ_MAXLEN;
-		d->rqueue.ifq_maxlen	= IFQ_MAXLEN;
+		d->queue.ifq_maxlen	= ifqmaxlen;
+		d->hi_queue.ifq_maxlen	= ifqmaxlen;
+		d->rqueue.ifq_maxlen	= ifqmaxlen;
 #if __FreeBSD_version >= 500000
 		mtx_init (&d->queue.ifq_mtx, "ce_queue", NULL, MTX_DEF);
 		mtx_init (&d->hi_queue.ifq_mtx, "ce_queue_hi", NULL, MTX_DEF);
@@ -732,7 +732,7 @@ static int ce_attach (device_t dev)
 		d->ifp->if_ioctl	= ce_sioctl;
 		d->ifp->if_start	= ce_ifstart;
 		d->ifp->if_init		= ce_initialize;
-		d->rqueue.ifq_maxlen	= IFQ_MAXLEN;
+		d->rqueue.ifq_maxlen	= ifqmaxlen;
 #if __FreeBSD_version >= 500000
 		mtx_init (&d->rqueue.ifq_mtx, "ce_rqueue", NULL, MTX_DEF);
 #endif		

Modified: head/sys/dev/cm/smc90cx6.c
==============================================================================
--- head/sys/dev/cm/smc90cx6.c	Mon May  3 07:32:24 2010	(r207553)
+++ head/sys/dev/cm/smc90cx6.c	Mon May  3 07:32:50 2010	(r207554)
@@ -189,7 +189,7 @@ cm_attach(dev)
 	ifp->if_ioctl = cm_ioctl;
 	ifp->if_init = cm_init;
 	/* XXX IFQ_SET_READY(&ifp->if_snd); */
-	ifp->if_snd.ifq_maxlen = IFQ_MAXLEN;
+	ifp->if_snd.ifq_maxlen = ifqmaxlen;
 	ifp->if_flags = IFF_BROADCAST | IFF_SIMPLEX;
 
 	arc_ifattach(ifp, linkaddress);

Modified: head/sys/dev/cp/if_cp.c
==============================================================================
--- head/sys/dev/cp/if_cp.c	Mon May  3 07:32:24 2010	(r207553)
+++ head/sys/dev/cp/if_cp.c	Mon May  3 07:32:50 2010	(r207554)
@@ -505,8 +505,8 @@ static int cp_attach (device_t dev)
 			NG_NODE_UNREF (d->node);
 			continue;
 		}
-		d->queue.ifq_maxlen = IFQ_MAXLEN;
-		d->hi_queue.ifq_maxlen = IFQ_MAXLEN;
+		d->queue.ifq_maxlen = ifqmaxlen;
+		d->hi_queue.ifq_maxlen = ifqmaxlen;
 		mtx_init (&d->queue.ifq_mtx, "cp_queue", NULL, MTX_DEF);
 		mtx_init (&d->hi_queue.ifq_mtx, "cp_queue_hi", NULL, MTX_DEF);
 #else /*NETGRAPH*/

Modified: head/sys/dev/cs/if_cs.c
==============================================================================
--- head/sys/dev/cs/if_cs.c	Mon May  3 07:32:24 2010	(r207553)
+++ head/sys/dev/cs/if_cs.c	Mon May  3 07:32:50 2010	(r207554)
@@ -500,7 +500,7 @@ cs_attach(device_t dev)
 	ifp->if_start=cs_start;
 	ifp->if_ioctl=cs_ioctl;
 	ifp->if_init=cs_init;
-	IFQ_SET_MAXLEN(&ifp->if_snd, IFQ_MAXLEN);
+	IFQ_SET_MAXLEN(&ifp->if_snd, ifqmaxlen);
 
 	ifp->if_flags=(IFF_BROADCAST | IFF_SIMPLEX | IFF_MULTICAST);
 

Modified: head/sys/dev/ctau/if_ct.c
==============================================================================
--- head/sys/dev/ctau/if_ct.c	Mon May  3 07:32:24 2010	(r207553)
+++ head/sys/dev/ctau/if_ct.c	Mon May  3 07:32:50 2010	(r207554)
@@ -722,8 +722,8 @@ static int ct_attach (device_t dev)
 			ct_bus_dma_mem_free (&d->dmamem);
 			continue;
 		}
-		d->queue.ifq_maxlen = IFQ_MAXLEN;
-		d->hi_queue.ifq_maxlen = IFQ_MAXLEN;
+		d->queue.ifq_maxlen = ifqmaxlen;
+		d->hi_queue.ifq_maxlen = ifqmaxlen;
 		mtx_init (&d->queue.ifq_mtx, "ct_queue", NULL, MTX_DEF);
 		mtx_init (&d->hi_queue.ifq_mtx, "ct_queue_hi", NULL, MTX_DEF);
 #else /*NETGRAPH*/

Modified: head/sys/dev/cx/if_cx.c
==============================================================================
--- head/sys/dev/cx/if_cx.c	Mon May  3 07:32:24 2010	(r207553)
+++ head/sys/dev/cx/if_cx.c	Mon May  3 07:32:50 2010	(r207554)
@@ -831,8 +831,8 @@ static int cx_attach (device_t dev)
 			cx_bus_dma_mem_free (&d->dmamem);
 			continue;
 		}
-		d->lo_queue.ifq_maxlen = IFQ_MAXLEN;
-		d->hi_queue.ifq_maxlen = IFQ_MAXLEN;
+		d->lo_queue.ifq_maxlen = ifqmaxlen;
+		d->hi_queue.ifq_maxlen = ifqmaxlen;
 		mtx_init (&d->lo_queue.ifq_mtx, "cx_queue_lo", NULL, MTX_DEF);
 		mtx_init (&d->hi_queue.ifq_mtx, "cx_queue_hi", NULL, MTX_DEF);
 #else /*NETGRAPH*/

Modified: head/sys/dev/cxgb/cxgb_main.c
==============================================================================
--- head/sys/dev/cxgb/cxgb_main.c	Mon May  3 07:32:24 2010	(r207553)
+++ head/sys/dev/cxgb/cxgb_main.c	Mon May  3 07:32:50 2010	(r207554)
@@ -1012,7 +1012,7 @@ cxgb_port_attach(device_t dev)
 	ifp->if_ioctl = cxgb_ioctl;
 	ifp->if_start = cxgb_start;
 
-	ifp->if_snd.ifq_drv_maxlen = cxgb_snd_queue_len;
+	ifp->if_snd.ifq_drv_maxlen = max(cxgb_snd_queue_len, ifqmaxlen);
 	IFQ_SET_MAXLEN(&ifp->if_snd, ifp->if_snd.ifq_drv_maxlen);
 	IFQ_SET_READY(&ifp->if_snd);
 

Modified: head/sys/dev/ed/if_ed.c
==============================================================================
--- head/sys/dev/ed/if_ed.c	Mon May  3 07:32:24 2010	(r207553)
+++ head/sys/dev/ed/if_ed.c	Mon May  3 07:32:50 2010	(r207554)
@@ -283,8 +283,8 @@ ed_attach(device_t dev)
 	ifp->if_start = ed_start;
 	ifp->if_ioctl = ed_ioctl;
 	ifp->if_init = ed_init;
-	IFQ_SET_MAXLEN(&ifp->if_snd, IFQ_MAXLEN);
-	ifp->if_snd.ifq_drv_maxlen = IFQ_MAXLEN;
+	IFQ_SET_MAXLEN(&ifp->if_snd, ifqmaxlen);
+	ifp->if_snd.ifq_drv_maxlen = ifqmaxlen;
 	IFQ_SET_READY(&ifp->if_snd);
 	ifp->if_linkmib = &sc->mibdata;
 	ifp->if_linkmiblen = sizeof sc->mibdata;

Modified: head/sys/dev/ep/if_ep.c
==============================================================================
--- head/sys/dev/ep/if_ep.c	Mon May  3 07:32:24 2010	(r207553)
+++ head/sys/dev/ep/if_ep.c	Mon May  3 07:32:50 2010	(r207554)
@@ -306,8 +306,8 @@ ep_attach(struct ep_softc *sc)
 	ifp->if_start = epstart;
 	ifp->if_ioctl = epioctl;
 	ifp->if_init = epinit;
-	IFQ_SET_MAXLEN(&ifp->if_snd, IFQ_MAXLEN);
-	ifp->if_snd.ifq_drv_maxlen = IFQ_MAXLEN;
+	IFQ_SET_MAXLEN(&ifp->if_snd, ifqmaxlen);
+	ifp->if_snd.ifq_drv_maxlen = ifqmaxlen;
 	IFQ_SET_READY(&ifp->if_snd);
 
 	callout_init_mtx(&sc->watchdog_timer, &sc->sc_mtx, 0);

Modified: head/sys/dev/ex/if_ex.c
==============================================================================
--- head/sys/dev/ex/if_ex.c	Mon May  3 07:32:24 2010	(r207553)
+++ head/sys/dev/ex/if_ex.c	Mon May  3 07:32:50 2010	(r207554)
@@ -237,7 +237,7 @@ ex_attach(device_t dev)
 	ifp->if_start = ex_start;
 	ifp->if_ioctl = ex_ioctl;
 	ifp->if_init = ex_init;
-	IFQ_SET_MAXLEN(&ifp->if_snd, IFQ_MAXLEN);
+	IFQ_SET_MAXLEN(&ifp->if_snd, ifqmaxlen);
 
 	ifmedia_init(&sc->ifmedia, 0, ex_ifmedia_upd, ex_ifmedia_sts);
 	mtx_init(&sc->lock, device_get_nameunit(dev), MTX_NETWORK_LOCK,

Modified: head/sys/dev/fe/if_fe.c
==============================================================================
--- head/sys/dev/fe/if_fe.c	Mon May  3 07:32:24 2010	(r207553)
+++ head/sys/dev/fe/if_fe.c	Mon May  3 07:32:50 2010	(r207554)
@@ -766,7 +766,7 @@ fe_attach (device_t dev)
 	 * Set fixed interface flags.
 	 */
  	ifp->if_flags = IFF_BROADCAST | IFF_SIMPLEX | IFF_MULTICAST;
-	IFQ_SET_MAXLEN(&ifp->if_snd, IFQ_MAXLEN);
+	IFQ_SET_MAXLEN(&ifp->if_snd, ifqmaxlen);
 
 #if FE_SINGLE_TRANSMISSION
 	/* Override txb config to allocate minimum.  */

Modified: head/sys/dev/ie/if_ie.c
==============================================================================
--- head/sys/dev/ie/if_ie.c	Mon May  3 07:32:24 2010	(r207553)
+++ head/sys/dev/ie/if_ie.c	Mon May  3 07:32:50 2010	(r207554)
@@ -318,7 +318,7 @@ ie_attach(device_t dev)
 	ifp->if_start = iestart;
 	ifp->if_ioctl = ieioctl;
 	ifp->if_init = ieinit;
-	IFQ_SET_MAXLEN(&ifp->if_snd, IFQ_MAXLEN);
+	IFQ_SET_MAXLEN(&ifp->if_snd, ifqmaxlen);
 
 	ether_ifattach(ifp, sc->enaddr);
 

Modified: head/sys/dev/iicbus/if_ic.c
==============================================================================
--- head/sys/dev/iicbus/if_ic.c	Mon May  3 07:32:24 2010	(r207553)
+++ head/sys/dev/iicbus/if_ic.c	Mon May  3 07:32:50 2010	(r207554)
@@ -181,7 +181,7 @@ icattach(device_t dev)
 	ifp->if_output = icoutput;
 	ifp->if_hdrlen = 0;
 	ifp->if_addrlen = 0;
-	ifp->if_snd.ifq_maxlen = IFQ_MAXLEN;
+	ifp->if_snd.ifq_maxlen = ifqmaxlen;
 
 	ic_alloc_buffers(sc, ICMTU);
 

Modified: head/sys/dev/ipw/if_ipw.c
==============================================================================
--- head/sys/dev/ipw/if_ipw.c	Mon May  3 07:32:24 2010	(r207553)
+++ head/sys/dev/ipw/if_ipw.c	Mon May  3 07:32:50 2010	(r207554)
@@ -289,8 +289,8 @@ ipw_attach(device_t dev)
 	ifp->if_init = ipw_init;
 	ifp->if_ioctl = ipw_ioctl;
 	ifp->if_start = ipw_start;
-	IFQ_SET_MAXLEN(&ifp->if_snd, IFQ_MAXLEN);
-	ifp->if_snd.ifq_drv_maxlen = IFQ_MAXLEN;
+	IFQ_SET_MAXLEN(&ifp->if_snd, ifqmaxlen);
+	ifp->if_snd.ifq_drv_maxlen = ifqmaxlen;
 	IFQ_SET_READY(&ifp->if_snd);
 
 	ic->ic_ifp = ifp;

Modified: head/sys/dev/iwi/if_iwi.c
==============================================================================
--- head/sys/dev/iwi/if_iwi.c	Mon May  3 07:32:24 2010	(r207553)
+++ head/sys/dev/iwi/if_iwi.c	Mon May  3 07:32:50 2010	(r207554)
@@ -363,8 +363,8 @@ iwi_attach(device_t dev)
 	ifp->if_init = iwi_init;
 	ifp->if_ioctl = iwi_ioctl;
 	ifp->if_start = iwi_start;
-	IFQ_SET_MAXLEN(&ifp->if_snd, IFQ_MAXLEN);
-	ifp->if_snd.ifq_drv_maxlen = IFQ_MAXLEN;
+	IFQ_SET_MAXLEN(&ifp->if_snd, ifqmaxlen);
+	ifp->if_snd.ifq_drv_maxlen = ifqmaxlen;
 	IFQ_SET_READY(&ifp->if_snd);
 
 	ic->ic_ifp = ifp;

Modified: head/sys/dev/iwn/if_iwn.c
==============================================================================
--- head/sys/dev/iwn/if_iwn.c	Mon May  3 07:32:24 2010	(r207553)
+++ head/sys/dev/iwn/if_iwn.c	Mon May  3 07:32:50 2010	(r207554)
@@ -627,8 +627,8 @@ iwn_attach(device_t dev)
 	ifp->if_init = iwn_init;
 	ifp->if_ioctl = iwn_ioctl;
 	ifp->if_start = iwn_start;
-	IFQ_SET_MAXLEN(&ifp->if_snd, IFQ_MAXLEN);
-	ifp->if_snd.ifq_drv_maxlen = IFQ_MAXLEN;
+	IFQ_SET_MAXLEN(&ifp->if_snd, ifqmaxlen);
+	ifp->if_snd.ifq_drv_maxlen = ifqmaxlen;
 	IFQ_SET_READY(&ifp->if_snd);
 
 	ieee80211_ifattach(ic, macaddr);

Modified: head/sys/dev/le/lance.c
==============================================================================
--- head/sys/dev/le/lance.c	Mon May  3 07:32:24 2010	(r207553)
+++ head/sys/dev/le/lance.c	Mon May  3 07:32:50 2010	(r207554)
@@ -133,8 +133,8 @@ lance_config(struct lance_softc *sc, con
 	ifp->if_flags &= ~IFF_MULTICAST;
 #endif
 	ifp->if_baudrate = IF_Mbps(10);
-	IFQ_SET_MAXLEN(&ifp->if_snd, IFQ_MAXLEN);
-	ifp->if_snd.ifq_drv_maxlen = IFQ_MAXLEN;
+	IFQ_SET_MAXLEN(&ifp->if_snd, ifqmaxlen);
+	ifp->if_snd.ifq_drv_maxlen = ifqmaxlen;
 	IFQ_SET_READY(&ifp->if_snd);
 
 	/* Initialize ifmedia structures. */

Modified: head/sys/dev/malo/if_malo.c
==============================================================================
--- head/sys/dev/malo/if_malo.c	Mon May  3 07:32:24 2010	(r207553)
+++ head/sys/dev/malo/if_malo.c	Mon May  3 07:32:50 2010	(r207554)
@@ -275,8 +275,8 @@ malo_attach(uint16_t devid, struct malo_
 	ifp->if_start = malo_start;
 	ifp->if_ioctl = malo_ioctl;
 	ifp->if_init = malo_init;
-	IFQ_SET_MAXLEN(&ifp->if_snd, IFQ_MAXLEN);
-	ifp->if_snd.ifq_drv_maxlen = IFQ_MAXLEN;
+	IFQ_SET_MAXLEN(&ifp->if_snd, ifqmaxlen);
+	ifp->if_snd.ifq_drv_maxlen = ifqmaxlen;
 	IFQ_SET_READY(&ifp->if_snd);
 
 	ic->ic_ifp = ifp;

Modified: head/sys/dev/mwl/if_mwl.c
==============================================================================
--- head/sys/dev/mwl/if_mwl.c	Mon May  3 07:32:24 2010	(r207553)
+++ head/sys/dev/mwl/if_mwl.c	Mon May  3 07:32:50 2010	(r207554)
@@ -404,8 +404,8 @@ mwl_attach(uint16_t devid, struct mwl_so
 	ifp->if_start = mwl_start;
 	ifp->if_ioctl = mwl_ioctl;
 	ifp->if_init = mwl_init;
-	IFQ_SET_MAXLEN(&ifp->if_snd, IFQ_MAXLEN);
-	ifp->if_snd.ifq_drv_maxlen = IFQ_MAXLEN;
+	IFQ_SET_MAXLEN(&ifp->if_snd, ifqmaxlen);
+	ifp->if_snd.ifq_drv_maxlen = ifqmaxlen;
 	IFQ_SET_READY(&ifp->if_snd);
 
 	ic->ic_ifp = ifp;

Modified: head/sys/dev/my/if_my.c
==============================================================================
--- head/sys/dev/my/if_my.c	Mon May  3 07:32:24 2010	(r207553)
+++ head/sys/dev/my/if_my.c	Mon May  3 07:32:50 2010	(r207554)
@@ -902,8 +902,8 @@ my_attach(device_t dev)
 	ifp->if_start = my_start;
 	ifp->if_init = my_init;
 	ifp->if_baudrate = 10000000;
-	IFQ_SET_MAXLEN(&ifp->if_snd, IFQ_MAXLEN);
-	ifp->if_snd.ifq_drv_maxlen = IFQ_MAXLEN;
+	IFQ_SET_MAXLEN(&ifp->if_snd, ifqmaxlen);
+	ifp->if_snd.ifq_drv_maxlen = ifqmaxlen;
 	IFQ_SET_READY(&ifp->if_snd);
 
 	if (sc->my_info->my_did == MTD803ID)

Modified: head/sys/dev/nxge/if_nxge.c
==============================================================================
--- head/sys/dev/nxge/if_nxge.c	Mon May  3 07:32:24 2010	(r207553)
+++ head/sys/dev/nxge/if_nxge.c	Mon May  3 07:32:50 2010	(r207554)
@@ -1190,7 +1190,7 @@ xge_interface_setup(device_t dev)
 	ifnetp->if_start    = xge_send;
 
 	/* TODO: Check and assign optimal value */
-	ifnetp->if_snd.ifq_maxlen = IFQ_MAXLEN;
+	ifnetp->if_snd.ifq_maxlen = ifqmaxlen;
 
 	ifnetp->if_capabilities = IFCAP_VLAN_HWTAGGING | IFCAP_VLAN_MTU |
 	    IFCAP_HWCSUM;

Modified: head/sys/dev/pdq/pdq_ifsubr.c
==============================================================================
--- head/sys/dev/pdq/pdq_ifsubr.c	Mon May  3 07:32:24 2010	(r207553)
+++ head/sys/dev/pdq/pdq_ifsubr.c	Mon May  3 07:32:50 2010	(r207554)
@@ -471,7 +471,7 @@ pdq_ifattach(pdq_softc_t *sc, const pdq_
     if_initname(ifp, device_get_name(sc->dev), device_get_unit(sc->dev));
     ifp->if_softc = sc;
     ifp->if_init = pdq_ifinit;
-    ifp->if_snd.ifq_maxlen = IFQ_MAXLEN;
+    ifp->if_snd.ifq_maxlen = ifqmaxlen;
     ifp->if_flags = IFF_BROADCAST|IFF_SIMPLEX|IFF_NOTRAILERS|IFF_MULTICAST;
 
     ifp->if_ioctl = pdq_ifioctl;

Modified: head/sys/dev/ppbus/if_plip.c
==============================================================================
--- head/sys/dev/ppbus/if_plip.c	Mon May  3 07:32:24 2010	(r207553)
+++ head/sys/dev/ppbus/if_plip.c	Mon May  3 07:32:50 2010	(r207554)
@@ -262,7 +262,7 @@ lp_attach(device_t dev)
 	ifp->if_output = lpoutput;
 	ifp->if_hdrlen = 0;
 	ifp->if_addrlen = 0;
-	ifp->if_snd.ifq_maxlen = IFQ_MAXLEN;
+	ifp->if_snd.ifq_maxlen = ifqmaxlen;
 	if_attach(ifp);
 
 	bpfattach(ifp, DLT_NULL, sizeof(u_int32_t));

Modified: head/sys/dev/ral/rt2560.c
==============================================================================
--- head/sys/dev/ral/rt2560.c	Mon May  3 07:32:24 2010	(r207553)
+++ head/sys/dev/ral/rt2560.c	Mon May  3 07:32:50 2010	(r207554)
@@ -267,8 +267,8 @@ rt2560_attach(device_t dev, int id)
 	ifp->if_init = rt2560_init;
 	ifp->if_ioctl = rt2560_ioctl;
 	ifp->if_start = rt2560_start;
-	IFQ_SET_MAXLEN(&ifp->if_snd, IFQ_MAXLEN);
-	ifp->if_snd.ifq_drv_maxlen = IFQ_MAXLEN;
+	IFQ_SET_MAXLEN(&ifp->if_snd, ifqmaxlen);
+	ifp->if_snd.ifq_drv_maxlen = ifqmaxlen;
 	IFQ_SET_READY(&ifp->if_snd);
 
 	ic->ic_ifp = ifp;

Modified: head/sys/dev/ral/rt2661.c
==============================================================================
--- head/sys/dev/ral/rt2661.c	Mon May  3 07:32:24 2010	(r207553)
+++ head/sys/dev/ral/rt2661.c	Mon May  3 07:32:50 2010	(r207554)
@@ -269,8 +269,8 @@ rt2661_attach(device_t dev, int id)
 	ifp->if_init = rt2661_init;
 	ifp->if_ioctl = rt2661_ioctl;
 	ifp->if_start = rt2661_start;
-	IFQ_SET_MAXLEN(&ifp->if_snd, IFQ_MAXLEN);
-	ifp->if_snd.ifq_drv_maxlen = IFQ_MAXLEN;
+	IFQ_SET_MAXLEN(&ifp->if_snd, ifqmaxlen);
+	ifp->if_snd.ifq_drv_maxlen = ifqmaxlen;
 	IFQ_SET_READY(&ifp->if_snd);
 
 	ic->ic_ifp = ifp;

Modified: head/sys/dev/sbni/if_sbni.c
==============================================================================
--- head/sys/dev/sbni/if_sbni.c	Mon May  3 07:32:24 2010	(r207553)
+++ head/sys/dev/sbni/if_sbni.c	Mon May  3 07:32:50 2010	(r207554)
@@ -235,7 +235,7 @@ sbni_attach(struct sbni_softc *sc, int u
 	ifp->if_init	= sbni_init;
 	ifp->if_start	= sbni_start;
 	ifp->if_ioctl	= sbni_ioctl;
-	IFQ_SET_MAXLEN(&ifp->if_snd, IFQ_MAXLEN);
+	IFQ_SET_MAXLEN(&ifp->if_snd, ifqmaxlen);
 
 	/* report real baud rate */
 	csr0 = sbni_inb(sc, CSR0);

Modified: head/sys/dev/smc/if_smc.c
==============================================================================
--- head/sys/dev/smc/if_smc.c	Mon May  3 07:32:24 2010	(r207553)
+++ head/sys/dev/smc/if_smc.c	Mon May  3 07:32:50 2010	(r207554)
@@ -347,7 +347,7 @@ smc_attach(device_t dev)
 	ifp->if_init = smc_init;
 	ifp->if_ioctl = smc_ioctl;
 	ifp->if_start = smc_start;
-	IFQ_SET_MAXLEN(&ifp->if_snd, IFQ_MAXLEN);
+	IFQ_SET_MAXLEN(&ifp->if_snd, ifqmaxlen);
 	IFQ_SET_READY(&ifp->if_snd);
 
 	ifp->if_capabilities = ifp->if_capenable = 0;

Modified: head/sys/dev/sn/if_sn.c
==============================================================================
--- head/sys/dev/sn/if_sn.c	Mon May  3 07:32:24 2010	(r207553)
+++ head/sys/dev/sn/if_sn.c	Mon May  3 07:32:50 2010	(r207554)
@@ -207,8 +207,8 @@ sn_attach(device_t dev)
 	ifp->if_ioctl = snioctl;
 	ifp->if_init = sninit;
 	ifp->if_baudrate = 10000000;
-	IFQ_SET_MAXLEN(&ifp->if_snd, IFQ_MAXLEN);
-	ifp->if_snd.ifq_maxlen = IFQ_MAXLEN;
+	IFQ_SET_MAXLEN(&ifp->if_snd, ifqmaxlen);
+	ifp->if_snd.ifq_maxlen = ifqmaxlen;
 	IFQ_SET_READY(&ifp->if_snd);
 
 	ether_ifattach(ifp, eaddr);

Modified: head/sys/dev/snc/dp83932.c
==============================================================================
--- head/sys/dev/snc/dp83932.c	Mon May  3 07:32:24 2010	(r207553)
+++ head/sys/dev/snc/dp83932.c	Mon May  3 07:32:50 2010	(r207554)
@@ -177,7 +177,7 @@ sncconfig(sc, media, nmedia, defmedia, m
 	ifp->if_flags = IFF_BROADCAST | IFF_SIMPLEX | IFF_MULTICAST;
         ifp->if_init = sncinit;
         ifp->if_mtu = ETHERMTU;
-	IFQ_SET_MAXLEN(&ifp->if_snd, IFQ_MAXLEN);
+	IFQ_SET_MAXLEN(&ifp->if_snd, ifqmaxlen);
 
 	/* Initialize media goo. */
 	ifmedia_init(&sc->sc_media, 0, snc_mediachange,

Modified: head/sys/dev/usb/net/uhso.c
==============================================================================
--- head/sys/dev/usb/net/uhso.c	Mon May  3 07:32:24 2010	(r207553)
+++ head/sys/dev/usb/net/uhso.c	Mon May  3 07:32:50 2010	(r207554)
@@ -1471,8 +1471,8 @@ static int uhso_attach_ifnet(struct uhso
 	ifp->if_output = uhso_if_output;
 	ifp->if_flags = 0;
 	ifp->if_softc = sc;
-	IFQ_SET_MAXLEN(&ifp->if_snd, IFQ_MAXLEN);
-	ifp->if_snd.ifq_drv_maxlen = IFQ_MAXLEN;
+	IFQ_SET_MAXLEN(&ifp->if_snd, ifqmaxlen);
+	ifp->if_snd.ifq_drv_maxlen = ifqmaxlen;
 	IFQ_SET_READY(&ifp->if_snd);
 
 	if_attach(ifp);

Modified: head/sys/dev/usb/net/usb_ethernet.c
==============================================================================
--- head/sys/dev/usb/net/usb_ethernet.c	Mon May  3 07:32:24 2010	(r207553)
+++ head/sys/dev/usb/net/usb_ethernet.c	Mon May  3 07:32:50 2010	(r207554)
@@ -214,8 +214,8 @@ ue_attach_post_task(struct usb_proc_msg 
 		ifp->if_ioctl = uether_ioctl;
 	ifp->if_start = ue_start;
 	ifp->if_init = ue_init;
-	IFQ_SET_MAXLEN(&ifp->if_snd, IFQ_MAXLEN);
-	ifp->if_snd.ifq_drv_maxlen = IFQ_MAXLEN;
+	IFQ_SET_MAXLEN(&ifp->if_snd, ifqmaxlen);
+	ifp->if_snd.ifq_drv_maxlen = ifqmaxlen;
 	IFQ_SET_READY(&ifp->if_snd);
 	ue->ue_ifp = ifp;
 

Modified: head/sys/dev/usb/wlan/if_rum.c
==============================================================================
--- head/sys/dev/usb/wlan/if_rum.c	Mon May  3 07:32:24 2010	(r207553)
+++ head/sys/dev/usb/wlan/if_rum.c	Mon May  3 07:32:50 2010	(r207554)
@@ -478,8 +478,8 @@ rum_attach(device_t self)
 	ifp->if_init = rum_init;
 	ifp->if_ioctl = rum_ioctl;
 	ifp->if_start = rum_start;
-	IFQ_SET_MAXLEN(&ifp->if_snd, IFQ_MAXLEN);
-	ifp->if_snd.ifq_drv_maxlen = IFQ_MAXLEN;
+	IFQ_SET_MAXLEN(&ifp->if_snd, ifqmaxlen);
+	ifp->if_snd.ifq_drv_maxlen = ifqmaxlen;
 	IFQ_SET_READY(&ifp->if_snd);
 
 	ic->ic_ifp = ifp;

Modified: head/sys/dev/usb/wlan/if_run.c
==============================================================================
--- head/sys/dev/usb/wlan/if_run.c	Mon May  3 07:32:24 2010	(r207553)
+++ head/sys/dev/usb/wlan/if_run.c	Mon May  3 07:32:50 2010	(r207554)
@@ -609,8 +609,8 @@ run_attach(device_t self)
 	ifp->if_init = run_init;
 	ifp->if_ioctl = run_ioctl;
 	ifp->if_start = run_start;
-	IFQ_SET_MAXLEN(&ifp->if_snd, IFQ_MAXLEN);
-	ifp->if_snd.ifq_drv_maxlen = IFQ_MAXLEN;
+	IFQ_SET_MAXLEN(&ifp->if_snd, ifqmaxlen);
+	ifp->if_snd.ifq_drv_maxlen = ifqmaxlen;
 	IFQ_SET_READY(&ifp->if_snd);
 
 	ic->ic_ifp = ifp;

Modified: head/sys/dev/usb/wlan/if_uath.c
==============================================================================
--- head/sys/dev/usb/wlan/if_uath.c	Mon May  3 07:32:24 2010	(r207553)
+++ head/sys/dev/usb/wlan/if_uath.c	Mon May  3 07:32:50 2010	(r207554)
@@ -438,8 +438,8 @@ uath_attach(device_t dev)
 	ifp->if_ioctl = uath_ioctl;
 	ifp->if_start = uath_start;
 	/* XXX UATH_TX_DATA_LIST_COUNT */
-	IFQ_SET_MAXLEN(&ifp->if_snd, IFQ_MAXLEN);
-	ifp->if_snd.ifq_drv_maxlen = IFQ_MAXLEN;
+	IFQ_SET_MAXLEN(&ifp->if_snd, ifqmaxlen);
+	ifp->if_snd.ifq_drv_maxlen = ifqmaxlen;
 	IFQ_SET_READY(&ifp->if_snd);
 
 	ic = ifp->if_l2com;

Modified: head/sys/dev/usb/wlan/if_upgt.c
==============================================================================
--- head/sys/dev/usb/wlan/if_upgt.c	Mon May  3 07:32:24 2010	(r207553)
+++ head/sys/dev/usb/wlan/if_upgt.c	Mon May  3 07:32:50 2010	(r207554)
@@ -331,7 +331,7 @@ upgt_attach(device_t dev)
 	ifp->if_init = upgt_init;
 	ifp->if_ioctl = upgt_ioctl;
 	ifp->if_start = upgt_start;
-	IFQ_SET_MAXLEN(&ifp->if_snd, IFQ_MAXLEN);
+	IFQ_SET_MAXLEN(&ifp->if_snd, ifqmaxlen);
 	IFQ_SET_READY(&ifp->if_snd);
 
 	ic = ifp->if_l2com;

Modified: head/sys/dev/usb/wlan/if_ural.c
==============================================================================
--- head/sys/dev/usb/wlan/if_ural.c	Mon May  3 07:32:24 2010	(r207553)
+++ head/sys/dev/usb/wlan/if_ural.c	Mon May  3 07:32:50 2010	(r207554)
@@ -467,8 +467,8 @@ ural_attach(device_t self)
 	ifp->if_init = ural_init;
 	ifp->if_ioctl = ural_ioctl;
 	ifp->if_start = ural_start;
-	IFQ_SET_MAXLEN(&ifp->if_snd, IFQ_MAXLEN);
-	ifp->if_snd.ifq_drv_maxlen = IFQ_MAXLEN;
+	IFQ_SET_MAXLEN(&ifp->if_snd, ifqmaxlen);
+	ifp->if_snd.ifq_drv_maxlen = ifqmaxlen;
 	IFQ_SET_READY(&ifp->if_snd);
 
 	ic->ic_ifp = ifp;

Modified: head/sys/dev/usb/wlan/if_urtw.c
==============================================================================
--- head/sys/dev/usb/wlan/if_urtw.c	Mon May  3 07:32:24 2010	(r207553)
+++ head/sys/dev/usb/wlan/if_urtw.c	Mon May  3 07:32:50 2010	(r207554)
@@ -867,8 +867,8 @@ urtw_attach(device_t dev)
 	ifp->if_ioctl = urtw_ioctl;
 	ifp->if_start = urtw_start;
 	/* XXX URTW_TX_DATA_LIST_COUNT */
-	IFQ_SET_MAXLEN(&ifp->if_snd, IFQ_MAXLEN);
-	ifp->if_snd.ifq_drv_maxlen = IFQ_MAXLEN;
+	IFQ_SET_MAXLEN(&ifp->if_snd, ifqmaxlen);
+	ifp->if_snd.ifq_drv_maxlen = ifqmaxlen;
 	IFQ_SET_READY(&ifp->if_snd);
 
 	ic = ifp->if_l2com;

Modified: head/sys/dev/usb/wlan/if_zyd.c
==============================================================================
--- head/sys/dev/usb/wlan/if_zyd.c	Mon May  3 07:32:24 2010	(r207553)
+++ head/sys/dev/usb/wlan/if_zyd.c	Mon May  3 07:32:50 2010	(r207554)
@@ -381,7 +381,7 @@ zyd_attach(device_t dev)
 	ifp->if_init = zyd_init;
 	ifp->if_ioctl = zyd_ioctl;
 	ifp->if_start = zyd_start;
-	IFQ_SET_MAXLEN(&ifp->if_snd, IFQ_MAXLEN);
+	IFQ_SET_MAXLEN(&ifp->if_snd, ifqmaxlen);
 	IFQ_SET_READY(&ifp->if_snd);
 
 	ic = ifp->if_l2com;

Modified: head/sys/dev/vx/if_vx.c
==============================================================================
--- head/sys/dev/vx/if_vx.c	Mon May  3 07:32:24 2010	(r207553)
+++ head/sys/dev/vx/if_vx.c	Mon May  3 07:32:50 2010	(r207554)
@@ -189,7 +189,7 @@ vx_attach(device_t dev)
 	}
 
 	ifp->if_mtu = ETHERMTU;
-	ifp->if_snd.ifq_maxlen = IFQ_MAXLEN;
+	ifp->if_snd.ifq_maxlen = ifqmaxlen;
 	ifp->if_flags = IFF_BROADCAST | IFF_SIMPLEX | IFF_MULTICAST;
 	ifp->if_start = vx_start;
 	ifp->if_ioctl = vx_ioctl;

Modified: head/sys/dev/wi/if_wi.c
==============================================================================
--- head/sys/dev/wi/if_wi.c	Mon May  3 07:32:24 2010	(r207553)
+++ head/sys/dev/wi/if_wi.c	Mon May  3 07:32:50 2010	(r207554)
@@ -333,8 +333,8 @@ wi_attach(device_t dev)
 	ifp->if_ioctl = wi_ioctl;
 	ifp->if_start = wi_start;
 	ifp->if_init = wi_init;
-	IFQ_SET_MAXLEN(&ifp->if_snd, IFQ_MAXLEN);
-	ifp->if_snd.ifq_drv_maxlen = IFQ_MAXLEN;
+	IFQ_SET_MAXLEN(&ifp->if_snd, ifqmaxlen);
+	ifp->if_snd.ifq_drv_maxlen = ifqmaxlen;
 	IFQ_SET_READY(&ifp->if_snd);
 
 	ic->ic_ifp = ifp;

Modified: head/sys/dev/wl/if_wl.c
==============================================================================
--- head/sys/dev/wl/if_wl.c	Mon May  3 07:32:24 2010	(r207553)
+++ head/sys/dev/wl/if_wl.c	Mon May  3 07:32:50 2010	(r207554)
@@ -559,7 +559,7 @@ wlattach(device_t device)
     ifp->if_init = wlinit;
     ifp->if_start = wlstart;
     ifp->if_ioctl = wlioctl;
-    ifp->if_snd.ifq_maxlen = IFQ_MAXLEN;
+    ifp->if_snd.ifq_maxlen = ifqmaxlen;
     /* no entries
        ifp->if_done
        ifp->if_reset

Modified: head/sys/dev/wpi/if_wpi.c
==============================================================================
--- head/sys/dev/wpi/if_wpi.c	Mon May  3 07:32:24 2010	(r207553)
+++ head/sys/dev/wpi/if_wpi.c	Mon May  3 07:32:50 2010	(r207554)
@@ -661,8 +661,8 @@ wpi_attach(device_t dev)
 	ifp->if_init = wpi_init;
 	ifp->if_ioctl = wpi_ioctl;
 	ifp->if_start = wpi_start;
-	IFQ_SET_MAXLEN(&ifp->if_snd, IFQ_MAXLEN);
-	ifp->if_snd.ifq_drv_maxlen = IFQ_MAXLEN;
+	IFQ_SET_MAXLEN(&ifp->if_snd, ifqmaxlen);
+	ifp->if_snd.ifq_drv_maxlen = ifqmaxlen;
 	IFQ_SET_READY(&ifp->if_snd);
 
 	ieee80211_ifattach(ic, macaddr);

Modified: head/sys/dev/xe/if_xe.c
==============================================================================
--- head/sys/dev/xe/if_xe.c	Mon May  3 07:32:24 2010	(r207553)
+++ head/sys/dev/xe/if_xe.c	Mon May  3 07:32:50 2010	(r207554)
@@ -254,7 +254,7 @@ xe_attach(device_t dev)
 	scp->ifp->if_ioctl = xe_ioctl;
 	scp->ifp->if_init = xe_init;
 	scp->ifp->if_baudrate = 100000000;
-	IFQ_SET_MAXLEN(&scp->ifp->if_snd, IFQ_MAXLEN);
+	IFQ_SET_MAXLEN(&scp->ifp->if_snd, ifqmaxlen);
 
 	/* Initialise the ifmedia structure */
 	ifmedia_init(scp->ifm, 0, xe_media_change, xe_media_status);

Modified: head/sys/mips/adm5120/if_admsw.c
==============================================================================
--- head/sys/mips/adm5120/if_admsw.c	Mon May  3 07:32:24 2010	(r207553)
+++ head/sys/mips/adm5120/if_admsw.c	Mon May  3 07:32:50 2010	(r207554)
@@ -540,8 +540,8 @@ admsw_attach(device_t dev)
 		ifp->if_init = admsw_init;
 		ifp->if_mtu = ETHERMTU;
 		ifp->if_baudrate = IF_Mbps(100);
-		IFQ_SET_MAXLEN(&ifp->if_snd, max(ADMSW_NTXLDESC, IFQ_MAXLEN));
-		ifp->if_snd.ifq_drv_maxlen = max(ADMSW_NTXLDESC, IFQ_MAXLEN);
+		IFQ_SET_MAXLEN(&ifp->if_snd, max(ADMSW_NTXLDESC, ifqmaxlen));
+		ifp->if_snd.ifq_drv_maxlen = max(ADMSW_NTXLDESC, ifqmaxlen);
 		IFQ_SET_READY(&ifp->if_snd);
 		ifp->if_capabilities |= IFCAP_VLAN_MTU;
 

Modified: head/sys/mips/atheros/if_arge.c
==============================================================================
--- head/sys/mips/atheros/if_arge.c	Mon May  3 07:32:24 2010	(r207553)
+++ head/sys/mips/atheros/if_arge.c	Mon May  3 07:32:50 2010	(r207554)
@@ -312,8 +312,8 @@ arge_attach(device_t dev)
 	sc->arge_if_flags = ifp->if_flags;
 
 	/* XXX: add real size */
-	IFQ_SET_MAXLEN(&ifp->if_snd, IFQ_MAXLEN);
-	ifp->if_snd.ifq_maxlen = IFQ_MAXLEN;
+	IFQ_SET_MAXLEN(&ifp->if_snd, ifqmaxlen);
+	ifp->if_snd.ifq_maxlen = ifqmaxlen;
 	IFQ_SET_READY(&ifp->if_snd);
 
 	ifp->if_capenable = ifp->if_capabilities;

Modified: head/sys/net/if.c
==============================================================================
--- head/sys/net/if.c	Mon May  3 07:32:24 2010	(r207553)
+++ head/sys/net/if.c	Mon May  3 07:32:50 2010	(r207554)
@@ -104,6 +104,10 @@ struct ifindex_entry {
 SYSCTL_NODE(_net, PF_LINK, link, CTLFLAG_RW, 0, "Link layers");
 SYSCTL_NODE(_net_link, 0, generic, CTLFLAG_RW, 0, "Generic link-management");
 
+TUNABLE_INT("net.link.ifqmaxlen", &ifqmaxlen);
+SYSCTL_UINT(_net_link, OID_AUTO, ifqmaxlen, CTLFLAG_RDTUN,
+    &ifqmaxlen, 0, "max send queue size");
+
 /* Log link state change events */
 static int log_link_state_change = 1;
 

Modified: head/sys/net/if_ef.c
==============================================================================
--- head/sys/net/if_ef.c	Mon May  3 07:32:24 2010	(r207553)
+++ head/sys/net/if_ef.c	Mon May  3 07:32:50 2010	(r207554)
@@ -129,7 +129,7 @@ ef_attach(struct efnet *sc)
 
 	ifp->if_start = ef_start;
 	ifp->if_init = ef_init;
-	ifp->if_snd.ifq_maxlen = IFQ_MAXLEN;
+	ifp->if_snd.ifq_maxlen = ifqmaxlen;
 	ifp->if_flags = (IFF_BROADCAST | IFF_SIMPLEX | IFF_MULTICAST);
 	/*
 	 * Attach the interface

Modified: head/sys/net/if_gif.c
==============================================================================
--- head/sys/net/if_gif.c	Mon May  3 07:32:24 2010	(r207553)
+++ head/sys/net/if_gif.c	Mon May  3 07:32:50 2010	(r207554)
@@ -185,7 +185,7 @@ gif_clone_create(ifc, unit, params)
 	GIF2IFP(sc)->if_ioctl  = gif_ioctl;
 	GIF2IFP(sc)->if_start  = gif_start;
 	GIF2IFP(sc)->if_output = gif_output;
-	GIF2IFP(sc)->if_snd.ifq_maxlen = IFQ_MAXLEN;
+	GIF2IFP(sc)->if_snd.ifq_maxlen = ifqmaxlen;
 	if_attach(GIF2IFP(sc));
 	bpfattach(GIF2IFP(sc), DLT_NULL, sizeof(u_int32_t));
 	if (ng_gif_attach_p != NULL)

Modified: head/sys/net/if_gre.c
==============================================================================
--- head/sys/net/if_gre.c	Mon May  3 07:32:24 2010	(r207553)
+++ head/sys/net/if_gre.c	Mon May  3 07:32:50 2010	(r207554)
@@ -184,7 +184,7 @@ gre_clone_create(ifc, unit, params)
 	GRE2IFP(sc)->if_softc = sc;
 	if_initname(GRE2IFP(sc), ifc->ifc_name, unit);
 
-	GRE2IFP(sc)->if_snd.ifq_maxlen = IFQ_MAXLEN;
+	GRE2IFP(sc)->if_snd.ifq_maxlen = ifqmaxlen;
 	GRE2IFP(sc)->if_addrlen = 0;
 	GRE2IFP(sc)->if_hdrlen = 24; /* IP + GRE */
 	GRE2IFP(sc)->if_mtu = GREMTU;

Modified: head/sys/net/if_stf.c
==============================================================================
--- head/sys/net/if_stf.c	Mon May  3 07:32:24 2010	(r207553)
+++ head/sys/net/if_stf.c	Mon May  3 07:32:50 2010	(r207554)
@@ -252,7 +252,7 @@ stf_clone_create(struct if_clone *ifc, c
 	ifp->if_mtu    = IPV6_MMTU;
 	ifp->if_ioctl  = stf_ioctl;
 	ifp->if_output = stf_output;
-	ifp->if_snd.ifq_maxlen = IFQ_MAXLEN;
+	ifp->if_snd.ifq_maxlen = ifqmaxlen;
 	if_attach(ifp);
 	bpfattach(ifp, DLT_NULL, sizeof(u_int32_t));
 	return (0);

Modified: head/sys/net80211/ieee80211.c
==============================================================================
--- head/sys/net80211/ieee80211.c	Mon May  3 07:32:24 2010	(r207553)
+++ head/sys/net80211/ieee80211.c	Mon May  3 07:32:50 2010	(r207554)
@@ -394,8 +394,8 @@ ieee80211_vap_setup(struct ieee80211com 
 	ifp->if_ioctl = ieee80211_ioctl;
 	ifp->if_init = ieee80211_init;
 	/* NB: input+output filled in by ether_ifattach */
-	IFQ_SET_MAXLEN(&ifp->if_snd, IFQ_MAXLEN);
-	ifp->if_snd.ifq_drv_maxlen = IFQ_MAXLEN;
+	IFQ_SET_MAXLEN(&ifp->if_snd, ifqmaxlen);
+	ifp->if_snd.ifq_drv_maxlen = ifqmaxlen;
 	IFQ_SET_READY(&ifp->if_snd);
 
 	vap->iv_ifp = ifp;

Modified: head/sys/netgraph/ng_eiface.c
==============================================================================
--- head/sys/netgraph/ng_eiface.c	Mon May  3 07:32:24 2010	(r207553)
+++ head/sys/netgraph/ng_eiface.c	Mon May  3 07:32:50 2010	(r207554)
@@ -369,7 +369,7 @@ ng_eiface_constructor(node_p node)
 	ifp->if_output = ether_output;
 	ifp->if_start = ng_eiface_start;
 	ifp->if_ioctl = ng_eiface_ioctl;
-	ifp->if_snd.ifq_maxlen = IFQ_MAXLEN;
+	ifp->if_snd.ifq_maxlen = ifqmaxlen;
 	ifp->if_flags = (IFF_SIMPLEX | IFF_BROADCAST | IFF_MULTICAST);
 
 	/* Give this node the same name as the interface (if possible) */

Modified: head/sys/netgraph/ng_fec.c
==============================================================================
--- head/sys/netgraph/ng_fec.c	Mon May  3 07:32:24 2010	(r207553)
+++ head/sys/netgraph/ng_fec.c	Mon May  3 07:32:50 2010	(r207554)
@@ -1227,7 +1227,7 @@ ng_fec_constructor(node_p node)
 	ifp->if_start = ng_fec_start;
 	ifp->if_ioctl = ng_fec_ioctl;
 	ifp->if_init = ng_fec_init;
-	ifp->if_snd.ifq_maxlen = IFQ_MAXLEN;
+	ifp->if_snd.ifq_maxlen = ifqmaxlen;
 	ifp->if_mtu = NG_FEC_MTU_DEFAULT;
 	ifp->if_flags = (IFF_SIMPLEX|IFF_BROADCAST|IFF_MULTICAST);
 	ifp->if_addrlen = 0;			/* XXX */

Modified: head/sys/netgraph/ng_iface.c
==============================================================================
--- head/sys/netgraph/ng_iface.c	Mon May  3 07:32:24 2010	(r207553)
+++ head/sys/netgraph/ng_iface.c	Mon May  3 07:32:50 2010	(r207554)
@@ -564,8 +564,8 @@ ng_iface_constructor(node_p node)
 	ifp->if_addrlen = 0;			/* XXX */
 	ifp->if_hdrlen = 0;			/* XXX */
 	ifp->if_baudrate = 64000;		/* XXX */
-	IFQ_SET_MAXLEN(&ifp->if_snd, IFQ_MAXLEN);
-	ifp->if_snd.ifq_drv_maxlen = IFQ_MAXLEN;
+	IFQ_SET_MAXLEN(&ifp->if_snd, ifqmaxlen);
+	ifp->if_snd.ifq_drv_maxlen = ifqmaxlen;
 	IFQ_SET_READY(&ifp->if_snd);
 
 	/* Give this node the same name as the interface (if possible) */

Modified: head/sys/netgraph/ng_tty.c
==============================================================================
--- head/sys/netgraph/ng_tty.c	Mon May  3 07:32:24 2010	(r207553)
+++ head/sys/netgraph/ng_tty.c	Mon May  3 07:32:50 2010	(r207554)
@@ -164,7 +164,7 @@ ngt_constructor(node_p node)
 	sc->node = node;
 
 	mtx_init(&sc->outq.ifq_mtx, "ng_tty node+queue", NULL, MTX_DEF);
-	IFQ_SET_MAXLEN(&sc->outq, IFQ_MAXLEN);
+	IFQ_SET_MAXLEN(&sc->outq, ifqmaxlen);
 
 	return (0);
 }

Modified: head/sys/pci/if_rl.c
==============================================================================
--- head/sys/pci/if_rl.c	Mon May  3 07:32:24 2010	(r207553)
+++ head/sys/pci/if_rl.c	Mon May  3 07:32:50 2010	(r207554)
@@ -942,8 +942,8 @@ rl_attach(device_t dev)
 #ifdef DEVICE_POLLING
 	ifp->if_capabilities |= IFCAP_POLLING;
 #endif
-	IFQ_SET_MAXLEN(&ifp->if_snd, IFQ_MAXLEN);
-	ifp->if_snd.ifq_drv_maxlen = IFQ_MAXLEN;
+	IFQ_SET_MAXLEN(&ifp->if_snd, ifqmaxlen);
+	ifp->if_snd.ifq_drv_maxlen = ifqmaxlen;
 	IFQ_SET_READY(&ifp->if_snd);
 
 	/*


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