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Keep a count of packets written to the chip but not yet initiated. This 

simplifies some logic, and is needed for later changes.
This commit is contained in:
mycroft 2004-07-22 20:30:43 +00:00
parent 04cd0b261d
commit 1854f1b055
2 changed files with 12 additions and 9 deletions
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18
sys/dev/ic/wi.c
View File

@ -1,4 +1,4 @@
/* $NetBSD: wi.c,v 1.176 2004/07/22 20:25:23 mycroft Exp $ */
/* $NetBSD: wi.c,v 1.177 2004/07/22 20:30:43 mycroft Exp $ */
/*
* Copyright (c) 1997, 1998, 1999
@ -70,7 +70,7 @@
*/
#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: wi.c,v 1.176 2004/07/22 20:25:23 mycroft Exp $");
__KERNEL_RCSID(0, "$NetBSD: wi.c,v 1.177 2004/07/22 20:30:43 mycroft Exp $");
#define WI_HERMES_AUTOINC_WAR /* Work around data write autoinc bug. */
#define WI_HERMES_STATS_WAR /* Work around stats counter bug. */
@ -760,6 +760,7 @@ wi_init(struct ifnet *ifp)
sc->sc_txalloc = 0;
sc->sc_txalloced = 0;
sc->sc_txqueue = 0;
sc->sc_txqueued = 0;
if (sc->sc_firmware_type != WI_SYMBOL || !wasenabled) {
sc->sc_buflen = IEEE80211_MAX_LEN + sizeof(struct wi_frame);
@ -1106,7 +1107,7 @@ wi_start(struct ifnet *ifp)
m_freem(m0);
sc->sc_txpending[ni->ni_txrate]++;
--sc->sc_txalloced;
if (sc->sc_txalloc == cur) {
if (sc->sc_txqueued++ == 0) {
if (wi_cmd(sc, WI_CMD_TX | WI_RECLAIM, fid, 0, 0)) {
printf("%s: xmit failed\n",
sc->sc_dev.dv_xname);
@ -1443,8 +1444,9 @@ wi_rx_intr(struct wi_softc *sc)
/* First read in the frame header */
if (wi_read_bap(sc, fid, 0, &frmhdr, sizeof(frmhdr))) {
printf("%s: %s read fid %x failed\n", sc->sc_dev.dv_xname,
__func__, fid);
ifp->if_ierrors++;
DPRINTF(("wi_rx_intr: read fid %x failed\n", fid));
return;
}
@ -1652,12 +1654,12 @@ wi_txalloc_intr(struct wi_softc *sc)
sc->sc_txqueue);
return;
}
sc->sc_tx_timer = 0;
++sc->sc_txalloced;
sc->sc_txalloc = cur = (cur + 1) % WI_NTXBUF;
if (sc->sc_txalloced >= WI_NTXBUF)
++sc->sc_txalloced;
if (--sc->sc_txqueued == 0) {
sc->sc_tx_timer = 0;
ifp->if_flags &= ~IFF_OACTIVE;
else {
} else {
if (wi_cmd(sc, WI_CMD_TX | WI_RECLAIM, sc->sc_txd[cur].d_fid,
0, 0)) {
printf("%s: xmit failed\n", sc->sc_dev.dv_xname);

3
sys/dev/ic/wivar.h
View File

@ -1,4 +1,4 @@
/* $NetBSD: wivar.h,v 1.46 2004/07/22 20:25:23 mycroft Exp $ */
/* $NetBSD: wivar.h,v 1.47 2004/07/22 20:30:43 mycroft Exp $ */
/*
* Copyright (c) 1997, 1998, 1999
@ -129,6 +129,7 @@ struct wi_softc {
int sc_txalloc;
int sc_txalloced;
int sc_txqueue;
int sc_txqueued;
struct wi_rssdesc sc_rssd[WI_NTXRSS];
wi_rssdescq_t sc_rssdfree;
int sc_tx_timer;