Module Name: src
Committed By: martin
Date: Tue Jul 31 17:03:50 UTC 2018
Modified Files:
src/sys/dev/ppbus [netbsd-8]: if_plip.c
Log Message:
Pull up following revision(s) (requested by msaitoh in ticket #955):
sys/dev/ppbus/if_plip.c: revision 1.29
KNF & fix typo. No functional change.
To generate a diff of this commit:
cvs rdiff -u -r1.27.10.1 -r1.27.10.2 src/sys/dev/ppbus/if_plip.c
Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.
Modified files:
Index: src/sys/dev/ppbus/if_plip.c
diff -u src/sys/dev/ppbus/if_plip.c:1.27.10.1 src/sys/dev/ppbus/if_plip.c:1.27.10.2
--- src/sys/dev/ppbus/if_plip.c:1.27.10.1 Thu Mar 8 14:35:53 2018
+++ src/sys/dev/ppbus/if_plip.c Tue Jul 31 17:03:50 2018
@@ -1,4 +1,4 @@
-/* $NetBSD: if_plip.c,v 1.27.10.1 2018/03/08 14:35:53 martin Exp $ */
+/* $NetBSD: if_plip.c,v 1.27.10.2 2018/07/31 17:03:50 martin Exp $ */
/*-
* Copyright (c) 1997 Poul-Henning Kamp
@@ -31,7 +31,7 @@
*/
#include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: if_plip.c,v 1.27.10.1 2018/03/08 14:35:53 martin Exp $");
+__KERNEL_RCSID(0, "$NetBSD: if_plip.c,v 1.27.10.2 2018/07/31 17:03:50 martin Exp $");
/*
* Parallel port TCP/IP interfaces added. I looked at the driver from
@@ -41,7 +41,7 @@ __KERNEL_RCSID(0, "$NetBSD: if_plip.c,v
* This driver sends two bytes (0x08, 0x00) in front of each packet,
* to allow us to distinguish another format later.
*
- * Now added an Linux/Crynwr compatibility mode which is enabled using
+ * Now added a Linux/Crynwr compatibility mode which is enabled using
* IF_LINK0 - Tim Wilkinson.
*
* TODO:
@@ -194,7 +194,7 @@ static void lpinittables(void);
static void lpfreetables(void);
static int lpioctl(struct ifnet *, u_long, void *);
static int lpoutput(struct ifnet *, struct mbuf *, const struct sockaddr *,
- const struct rtentry *);
+ const struct rtentry *);
static void lpstart(struct ifnet *);
static void lp_intr(void *);
@@ -205,7 +205,7 @@ lp_probe(device_t parent, cfdata_t match
struct ppbus_attach_args * args = aux;
/* Fail if ppbus is not interrupt capable */
- if(args->capabilities & PPBUS_HAS_INTR)
+ if (args->capabilities & PPBUS_HAS_INTR)
return 1;
printf("%s(%s): not an interrupt-driven port.\n", __func__,
@@ -243,7 +243,7 @@ lp_attach(device_t parent, device_t self
bpf_attach(ifp, DLT_NULL, sizeof(u_int32_t));
- if(lp_count++ == 0)
+ if (lp_count++ == 0)
lpinittables();
printf("\n");
}
@@ -255,8 +255,8 @@ lp_detach(device_t self, int flags)
struct lp_softc * lp = device_private(self);
device_t ppbus = device_parent(self);
- if(lp->sc_dev_ok) {
- if(!(flags & DETACH_QUIET))
+ if (lp->sc_dev_ok) {
+ if (!(flags & DETACH_QUIET))
LP_PRINTF("%s(%s): device not properly attached! "
"Skipping detach....\n", __func__,
device_xname(self));
@@ -264,33 +264,33 @@ lp_detach(device_t self, int flags)
}
/* If interface is up, bring it down and release ppbus */
- if(lp->sc_if.if_flags & IFF_RUNNING) {
+ if (lp->sc_if.if_flags & IFF_RUNNING) {
ppbus_wctr(ppbus, 0x00);
if_detach(&lp->sc_if);
error = ppbus_remove_handler(ppbus, lp_intr);
- if(error) {
- if(!(flags & DETACH_QUIET))
+ if (error) {
+ if (!(flags & DETACH_QUIET))
LP_PRINTF("%s(%s): unable to remove interrupt "
"callback.\n", __func__,
device_xname(self));
- if(!(flags & DETACH_FORCE))
+ if (!(flags & DETACH_FORCE))
return error;
}
error = ppbus_release_bus(ppbus, self, 0, 0);
- if(error) {
- if(!(flags & DETACH_QUIET))
+ if (error) {
+ if (!(flags & DETACH_QUIET))
LP_PRINTF("%s(%s): error releasing bus %s.\n",
__func__, device_xname(self),
device_xname(ppbus));
- if(!(flags & DETACH_FORCE))
+ if (!(flags & DETACH_FORCE))
return error;
}
}
- if(lp->sc_ifbuf)
+ if (lp->sc_ifbuf)
free(lp->sc_ifbuf, M_DEVBUF);
- if(--lp_count == 0)
+ if (--lp_count == 0)
lpfreetables();
return error;
}
@@ -301,7 +301,7 @@ lp_detach(device_t self, int flags)
* precalculate them when we initialize.
*/
static void
-lpinittables (void)
+lpinittables(void)
{
int i;
@@ -311,14 +311,14 @@ lpinittables (void)
if (!ctxmith)
ctxmith = malloc(4*LPIPTBLSIZE, M_DEVBUF, M_WAITOK);
- for(i = 0; i < LPIPTBLSIZE; i++) {
+ for (i = 0; i < LPIPTBLSIZE; i++) {
ctxmith[i] = (i & 0xF0) >> 4;
ctxmitl[i] = 0x10 | (i & 0x0F);
ctrecvh[i] = (i & 0x78) << 1;
ctrecvl[i] = (i & 0x78) >> 3;
}
- for(i = 0; i < LPIPTBLSIZE; i++) {
+ for (i = 0; i < LPIPTBLSIZE; i++) {
txmith[i] = ((i & 0x80) >> 3) | ((i & 0x70) >> 4) | 0x08;
txmitl[i] = ((i & 0x08) << 1) | (i & 0x07);
trecvh[i] = ((~i) & 0x80) | ((i & 0x38) << 1);
@@ -328,7 +328,7 @@ lpinittables (void)
/* Free translation tables */
static void
-lpfreetables (void)
+lpfreetables(void)
{
if (txmith)
free(txmith, M_DEVBUF);
@@ -353,7 +353,7 @@ lpioctl(struct ifnet *ifp, u_long cmd, v
error = 0;
s = splnet();
- if(sc->sc_dev_ok) {
+ if (sc->sc_dev_ok) {
LP_PRINTF("%s(%s): device not properly attached!", __func__,
device_xname(dev));
error = ENODEV;
@@ -377,15 +377,15 @@ lpioctl(struct ifnet *ifp, u_long cmd, v
case SIOCSIFFLAGS:
if ((error = ifioctl_common(ifp, cmd, data)) != 0)
break;
- if((ifp->if_flags & (IFF_UP|IFF_RUNNING)) == IFF_UP) {
- if((error = ppbus_request_bus(ppbus, dev, 0, 0)))
+ if ((ifp->if_flags & (IFF_UP|IFF_RUNNING)) == IFF_UP) {
+ if ((error = ppbus_request_bus(ppbus, dev, 0, 0)))
break;
error = ppbus_set_mode(ppbus, PPBUS_COMPATIBLE, 0);
- if(error)
+ if (error)
break;
error = ppbus_add_handler(ppbus, lp_intr, dev);
- if(error) {
+ if (error) {
LP_PRINTF("%s(%s): unable to register interrupt"
" callback.\n", __func__,
device_xname(dev));
@@ -394,7 +394,7 @@ lpioctl(struct ifnet *ifp, u_long cmd, v
}
/* Allocate a buffer if necessary */
- if(sc->sc_ifbuf == NULL) {
+ if (sc->sc_ifbuf == NULL) {
sc->sc_ifbuf = malloc(sc->sc_if.if_mtu +
MLPIPHDRLEN, M_DEVBUF, M_NOWAIT);
if (!sc->sc_ifbuf) {
@@ -407,7 +407,7 @@ lpioctl(struct ifnet *ifp, u_long cmd, v
ppbus_wctr(ppbus, IRQENABLE);
ifp->if_flags |= IFF_RUNNING;
}
- if((ifp->if_flags & (IFF_UP|IFF_RUNNING)) == IFF_RUNNING) {
+ if ((ifp->if_flags & (IFF_UP|IFF_RUNNING)) == IFF_RUNNING) {
ppbus_remove_handler(ppbus, lp_intr);
error = ppbus_release_bus(ppbus, dev, 0, 0);
ifp->if_flags &= ~IFF_RUNNING;
@@ -417,7 +417,7 @@ lpioctl(struct ifnet *ifp, u_long cmd, v
break;
case SIOCSIFMTU:
- if(sc->sc_if.if_mtu == ifr->ifr_mtu)
+ if (sc->sc_if.if_mtu == ifr->ifr_mtu)
break;
ptr = sc->sc_ifbuf;
sc->sc_ifbuf = malloc(ifr->ifr_mtu+MLPIPHDRLEN, M_DEVBUF,
@@ -427,7 +427,7 @@ lpioctl(struct ifnet *ifp, u_long cmd, v
error = ENOBUFS;
break;
}
- if(ptr)
+ if (ptr)
free(ptr,M_DEVBUF);
/*FALLTHROUGH*/
case SIOCGIFMTU:
@@ -466,7 +466,7 @@ end:
}
static inline int
-clpoutbyte (u_char byte, int spin, device_t ppbus)
+clpoutbyte(u_char byte, int spin, device_t ppbus)
{
int s = spin;
ppbus_wdtr(ppbus, ctxmitl[byte]);
@@ -486,13 +486,13 @@ clpoutbyte (u_char byte, int spin, devic
}
static inline int
-clpinbyte (int spin, device_t ppbus)
+clpinbyte(int spin, device_t ppbus)
{
u_char c, cl;
int s = spin;
- while(ppbus_rstr(ppbus) & CLPIP_SHAKE) {
- if(!--s) {
+ while (ppbus_rstr(ppbus) & CLPIP_SHAKE) {
+ if (!--s) {
return -1;
}
}
@@ -500,8 +500,8 @@ clpinbyte (int spin, device_t ppbus)
ppbus_wdtr(ppbus, 0x10);
s = spin;
- while(!(ppbus_rstr(ppbus) & CLPIP_SHAKE)) {
- if(!--s) {
+ while (!(ppbus_rstr(ppbus) & CLPIP_SHAKE)) {
+ if (!--s) {
return -1;
}
}
@@ -531,7 +531,7 @@ lptap(struct ifnet *ifp, struct mbuf *m)
/* Soft interrupt handler called by hardware interrupt handler */
static void
-lp_intr (void *arg)
+lp_intr(void *arg)
{
device_t dev = (device_t)arg;
device_t ppbus = device_parent(dev);
@@ -545,18 +545,18 @@ lp_intr (void *arg)
s = splnet();
/* Do nothing if device not properly attached */
- if(sc->sc_dev_ok) {
+ if (sc->sc_dev_ok) {
LP_PRINTF("%s(%s): device not properly attached!", __func__,
device_xname(dev));
goto done;
}
/* Do nothing if interface is not up */
- if((ifp->if_flags & (IFF_UP|IFF_RUNNING)) != (IFF_UP|IFF_RUNNING))
+ if ((ifp->if_flags & (IFF_UP|IFF_RUNNING)) != (IFF_UP|IFF_RUNNING))
goto done;
/* If other side is no longer transmitting, do nothing */
- if(!(ppbus_rstr(ppbus) & LPIP_SHAKE))
+ if (!(ppbus_rstr(ppbus) & LPIP_SHAKE))
goto done;
/* Disable interrupts until we finish */
@@ -565,23 +565,23 @@ lp_intr (void *arg)
top = NULL;
bp = sc->sc_ifbuf;
/* Linux/crynwyr protocol receiving */
- if(ifp->if_flags & IFF_LINK0) {
+ if (ifp->if_flags & IFF_LINK0) {
/* Ack. the request */
ppbus_wdtr(ppbus, 0x01);
/* Get the packet length */
j = clpinbyte(LPMAXSPIN2, ppbus);
- if(j == -1)
+ if (j == -1)
goto err;
len = j;
j = clpinbyte(LPMAXSPIN2, ppbus);
- if(j == -1)
+ if (j == -1)
goto err;
len = len + (j << 8);
- if(len > ifp->if_mtu + MLPIPHDRLEN)
+ if (len > ifp->if_mtu + MLPIPHDRLEN)
goto err;
- while(len--) {
+ while (len--) {
j = clpinbyte(LPMAXSPIN2, ppbus);
if (j == -1) {
goto err;
@@ -590,7 +590,7 @@ lp_intr (void *arg)
}
/* Get and ignore checksum */
j = clpinbyte(LPMAXSPIN2, ppbus);
- if(j == -1) {
+ if (j == -1) {
goto err;
}
@@ -605,13 +605,14 @@ lp_intr (void *arg)
/* FreeBSD protocol receiving */
else {
len = ifp->if_mtu + LPIPHDRLEN;
- while(len--) {
+ while (len--) {
cl = ppbus_rstr(ppbus);
ppbus_wdtr(ppbus, 0x08);
j = LPMAXSPIN2;
- while((ppbus_rstr(ppbus) & LPIP_SHAKE)) {
- if(!--j) goto err;
+ while ((ppbus_rstr(ppbus) & LPIP_SHAKE)) {
+ if (!--j)
+ goto err;
}
c = ppbus_rstr(ppbus);
@@ -620,18 +621,19 @@ lp_intr (void *arg)
*bp++= trecvh[cl] | trecvl[c];
j = LPMAXSPIN2;
- while(!((cl=ppbus_rstr(ppbus)) & LPIP_SHAKE)) {
- if(cl != c &&
+ while (!((cl = ppbus_rstr(ppbus)) & LPIP_SHAKE)) {
+ if (cl != c &&
(((cl = ppbus_rstr(ppbus)) ^ 0xb8) &
0xf8) == (c & 0xf8))
goto end;
- if(!--j) goto err;
+ if (!--j)
+ goto err;
}
}
end:
len = bp - sc->sc_ifbuf;
- if(len <= LPIPHDRLEN)
+ if (len <= LPIPHDRLEN)
goto err;
len -= LPIPHDRLEN;
top = m_devget(sc->sc_ifbuf + LPIPHDRLEN, len, 0, ifp, NULL);
@@ -662,7 +664,7 @@ err:
sc->sc_iferrs++;
LP_PRINTF("R");
/* Disable interface if there are too many errors */
- if(sc->sc_iferrs > LPMAXERRS) {
+ if (sc->sc_iferrs > LPMAXERRS) {
aprint_error_dev(dev, "Too many consecutive errors, going off-line.\n");
ppbus_wctr(ppbus, ~IRQENABLE);
if_down(ifp);
@@ -673,7 +675,7 @@ done:
/* Re-enable interrupts */
ppbus_wctr(ppbus, IRQENABLE);
/* If interface is not active, send some packets */
- if((ifp->if_flags & IFF_OACTIVE) == 0)
+ if ((ifp->if_flags & IFF_OACTIVE) == 0)
lpstart(ifp);
splx(s);
return;
@@ -684,14 +686,14 @@ lpoutbyte(u_char byte, int spin, device_
{
int s = spin;
ppbus_wdtr(ppbus, txmith[byte]);
- while(!(ppbus_rstr(ppbus) & LPIP_SHAKE)) {
- if(--s == 0)
+ while (!(ppbus_rstr(ppbus) & LPIP_SHAKE)) {
+ if (--s == 0)
return 1;
}
s = spin;
ppbus_wdtr(ppbus, txmitl[byte]);
- while(ppbus_rstr(ppbus) & LPIP_SHAKE) {
- if(--s == 0)
+ while (ppbus_rstr(ppbus) & LPIP_SHAKE) {
+ if (--s == 0)
return 1;
}
return 0;
@@ -700,7 +702,7 @@ lpoutbyte(u_char byte, int spin, device_
/* Queue a packet for delivery */
static int
lpoutput(struct ifnet *ifp, struct mbuf *m, const struct sockaddr *dst,
- const struct rtentry *rt)
+ const struct rtentry *rt)
{
struct lp_softc * sc = ifp->if_softc;
device_t dev = sc->ppbus_dev.sc_dev;
@@ -710,20 +712,20 @@ lpoutput(struct ifnet *ifp, struct mbuf
s = splnet();
- if(sc->sc_dev_ok) {
+ if (sc->sc_dev_ok) {
LP_PRINTF("%s(%s): device not properly attached!", __func__,
device_xname(dev));
err = ENODEV;
goto endoutput;
}
- if((ifp->if_flags & (IFF_UP|IFF_RUNNING)) != (IFF_UP|IFF_RUNNING)) {
+ if ((ifp->if_flags & (IFF_UP|IFF_RUNNING)) != (IFF_UP|IFF_RUNNING)) {
err = ENETDOWN;
goto endoutput;
}
/* Only support INET */
- if(dst->sa_family != AF_INET) {
+ if (dst->sa_family != AF_INET) {
LP_PRINTF("%s: af%d not supported\n", ifp->if_xname,
dst->sa_family);
ifp->if_noproto++;
@@ -733,17 +735,16 @@ lpoutput(struct ifnet *ifp, struct mbuf
IFQ_CLASSIFY(&ifp->if_snd, m, dst->sa_family);
IFQ_ENQUEUE(&ifp->if_snd, m, err);
- if(err == 0) {
- if((ifp->if_flags & IFF_OACTIVE) == 0)
+ if (err == 0) {
+ if ((ifp->if_flags & IFF_OACTIVE) == 0)
lpstart(ifp);
- }
- else {
+ } else {
ifp->if_oerrors++;
sc->sc_iferrs++;
LP_PRINTF("Q");
/* Disable interface if there are too many errors */
- if(sc->sc_iferrs > LPMAXERRS) {
+ if (sc->sc_iferrs > LPMAXERRS) {
aprint_error_dev(dev, "Too many errors, going off-line.\n");
ppbus_wctr(ppbus, ~IRQENABLE);
if_down(ifp);
@@ -752,7 +753,7 @@ lpoutput(struct ifnet *ifp, struct mbuf
}
endoutput:
- if((err != 0) && (err != ENOBUFS))
+ if ((err != 0) && (err != ENOBUFS))
m_freem(m);
splx(s);
return err;
@@ -771,13 +772,13 @@ lpstart(struct ifnet * ifp)
int err, i, len, spin, count;
u_char str, chksum;
- if(lp->sc_dev_ok) {
+ if (lp->sc_dev_ok) {
LP_PRINTF("%s(%s): device not properly attached!", __func__,
device_xname(dev));
return;
}
- if((ifp->if_flags & (IFF_UP|IFF_RUNNING)) != (IFF_UP|IFF_RUNNING)) {
+ if ((ifp->if_flags & (IFF_UP|IFF_RUNNING)) != (IFF_UP|IFF_RUNNING)) {
return;
}
@@ -787,22 +788,22 @@ lpstart(struct ifnet * ifp)
ppbus_wdtr(ppbus, 0);
/* Output loop */
- for(;;) {
+ for (;;) {
/* Check if there are packets to send */
- if(IFQ_IS_EMPTY(&ifp->if_snd)) {
+ if (IFQ_IS_EMPTY(&ifp->if_snd)) {
goto final;
}
/* Try to send a packet, dequeue it later if successful */
IFQ_POLL(&ifp->if_snd, m);
- if(m == NULL)
+ if (m == NULL)
goto final;
str = ppbus_rstr(ppbus);
/* Wait until other side is not transmitting */
- if((str & LPIP_SHAKE) ||
+ if ((str & LPIP_SHAKE) ||
((ifp->if_flags & IFF_LINK0) && !(str & CLPIP_SHAKE))) {
LP_PRINTF("&");
- if(++lp->sc_xmit_rtry > LPMAXRTRY) {
+ if (++lp->sc_xmit_rtry > LPMAXRTRY) {
aprint_error_dev(dev, "Too many retries while channel "
"busy, going off-line.\n");
ppbus_wctr(ppbus, ~IRQENABLE);
@@ -819,38 +820,38 @@ lpstart(struct ifnet * ifp)
err = 1;
/* Output packet for Linux/crynwyr compatible protocol */
- if(ifp->if_flags & IFF_LINK0) {
+ if (ifp->if_flags & IFF_LINK0) {
/* Calculate packet length */
count = 14; /* Ethernet header len */
- for(mm = m; mm; mm = mm->m_next) {
+ for (mm = m; mm; mm = mm->m_next) {
count += mm->m_len;
}
/* Alert other end to pending packet */
spin = LPMAXSPIN1;
ppbus_wdtr(ppbus, 0x08);
- while((ppbus_rstr(ppbus) & 0x08) == 0) {
+ while ((ppbus_rstr(ppbus) & 0x08) == 0) {
if (--spin == 0) {
goto nend;
}
}
- if(clpoutbyte(count & 0xFF, LPMAXSPIN1, ppbus))
+ if (clpoutbyte(count & 0xFF, LPMAXSPIN1, ppbus))
goto nend;
- if(clpoutbyte((count >> 8) & 0xFF, LPMAXSPIN1, ppbus))
+ if (clpoutbyte((count >> 8) & 0xFF, LPMAXSPIN1, ppbus))
goto nend;
/* Send dummy ethernet header */
chksum = 0;
- for(i = 0; i < 12; i++) {
- if(clpoutbyte(i, LPMAXSPIN1, ppbus))
+ for (i = 0; i < 12; i++) {
+ if (clpoutbyte(i, LPMAXSPIN1, ppbus))
goto nend;
chksum += i;
}
- if(clpoutbyte(0x08, LPMAXSPIN1, ppbus))
+ if (clpoutbyte(0x08, LPMAXSPIN1, ppbus))
goto nend;
- if(clpoutbyte(0x00, LPMAXSPIN1, ppbus))
+ if (clpoutbyte(0x00, LPMAXSPIN1, ppbus))
goto nend;
chksum += 0x08 + 0x00; /* Add into checksum */
@@ -858,15 +859,15 @@ lpstart(struct ifnet * ifp)
do {
cp = mtod(mm, u_char *);
len = mm->m_len;
- while(len--) {
- if(clpoutbyte(*cp, LPMAXSPIN2, ppbus))
+ while (len--) {
+ if (clpoutbyte(*cp, LPMAXSPIN2, ppbus))
goto nend;
chksum += *cp++;
}
} while ((mm = mm->m_next));
/* Send checksum */
- if(clpoutbyte(chksum, LPMAXSPIN2, ppbus))
+ if (clpoutbyte(chksum, LPMAXSPIN2, ppbus))
goto nend;
/* No errors */
@@ -879,17 +880,17 @@ lpstart(struct ifnet * ifp)
/* We need a sensible value if we abort */
cp = NULL;
- if(lpoutbyte(0x08, LPMAXSPIN1, ppbus))
+ if (lpoutbyte(0x08, LPMAXSPIN1, ppbus))
goto end;
- if(lpoutbyte(0x00, LPMAXSPIN2, ppbus))
+ if (lpoutbyte(0x00, LPMAXSPIN2, ppbus))
goto end;
mm = m;
do {
cp = mtod(mm,u_char *);
len = mm->m_len;
- while(len--)
- if(lpoutbyte(*cp++, LPMAXSPIN2, ppbus))
+ while (len--)
+ if (lpoutbyte(*cp++, LPMAXSPIN2, ppbus))
goto end;
} while ((mm = mm->m_next));
@@ -897,7 +898,7 @@ lpstart(struct ifnet * ifp)
err = 0;
end:
- if(cp)
+ if (cp)
ppbus_wdtr(ppbus, txmitl[*(--cp)] ^ 0x17);
else
ppbus_wdtr(ppbus, txmitl['\0'] ^ 0x17);
@@ -907,7 +908,7 @@ nend:
/* Re-enable interrupt generation */
ppbus_wctr(ppbus, IRQENABLE);
- if(err) {
+ if (err) {
/* Go quiescent */
ppbus_wdtr(ppbus, 0);
@@ -916,18 +917,17 @@ nend:
LP_PRINTF("X");
/* Disable interface if there are too many errors */
- if(lp->sc_iferrs > LPMAXERRS) {
+ if (lp->sc_iferrs > LPMAXERRS) {
aprint_error_dev(dev, "Too many errors, going off-line.\n");
ppbus_wctr(ppbus, ~IRQENABLE);
if_down(ifp);
lp->sc_iferrs = 0;
goto final;
}
- }
- else {
+ } else {
/* Dequeue packet on success */
IFQ_DEQUEUE(&ifp->if_snd, m);
- if(ifp->if_bpf)
+ if (ifp->if_bpf)
lptap(ifp, m);
ifp->if_opackets++;
ifp->if_obytes += m->m_pkthdr.len;
