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o don't use '-' characters in firmware names

Browse source 
o call firmware_put() early to release the firmware module
o on firmware panics or watchdog timeouts, schedule a task to reinitialize
  the interface (we may sleep in iwi_init())
o discard oversized rx frames
This commit is contained in:
Damien Bergamini 2006-03-12 18:54:40 +00:00
parent 83d8a7bbbe
commit 1b996b2a23
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=156598
2 changed files with 34 additions and 18 deletions
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49
sys/dev/iwi/if_iwi.c
View file

@ -43,6 +43,8 @@ __FBSDID("$FreeBSD$");
#include <sys/socket.h>
#include <sys/systm.h>
#include <sys/malloc.h>
#include <sys/queue.h>
#include <sys/taskqueue.h>
#include <sys/module.h>
#include <sys/bus.h>
#include <sys/endian.h>
@ -148,6 +150,7 @@ static int iwi_config(struct iwi_softc *);
static int iwi_set_chan(struct iwi_softc *, struct ieee80211_channel *);
static int iwi_scan(struct iwi_softc *);
static int iwi_auth_and_assoc(struct iwi_softc *);
static void iwi_init_task(void *, int);
static void iwi_init(void *);
static void iwi_stop(void *);
static int iwi_sysctl_stats(SYSCTL_HANDLER_ARGS);
@ -228,6 +231,8 @@ iwi_attach(device_t dev)
sc->sc_unr = new_unrhdr(0, IWI_MAX_IBSSNODE, &sc->sc_mtx);
TASK_INIT(&sc->sc_init_task, 0, iwi_init_task, sc);
if (pci_get_powerstate(dev) != PCI_POWERSTATE_D0) {
device_printf(dev, "chip is in D%d power mode "
"-- setting to D0\n", pci_get_powerstate(dev));
@ -1169,7 +1174,8 @@ iwi_frame_intr(struct iwi_softc *sc, struct iwi_rx_data *data, int i,
DPRINTFN(5, ("received frame len=%u chan=%u rssi=%u\n",
le16toh(frame->len), frame->chan, frame->rssi_dbm));
if (le16toh(frame->len) < sizeof (struct ieee80211_frame))
if (le16toh(frame->len) < sizeof (struct ieee80211_frame) ||
le16toh(frame->len) > MCLBYTES)
return;
/*
@ -1420,20 +1426,18 @@ iwi_intr(void *arg)
/* disable interrupts */
CSR_WRITE_4(sc, IWI_CSR_INTR_MASK, 0);
/* acknowledge interrupts */
CSR_WRITE_4(sc, IWI_CSR_INTR, r);
if (r & (IWI_INTR_FATAL_ERROR | IWI_INTR_PARITY_ERROR)) {
device_printf(sc->sc_dev, "fatal error\n");
sc->sc_ic.ic_ifp->if_flags &= ~IFF_UP;
iwi_stop(sc);
device_printf(sc->sc_dev, "firmware error\n");
taskqueue_enqueue_fast(taskqueue_fast, &sc->sc_init_task);
r = 0; /* don't process more interrupts */
}
if (r & IWI_INTR_FW_INITED) {
if (!(r & (IWI_INTR_FATAL_ERROR | IWI_INTR_PARITY_ERROR)))
wakeup(sc);
}
if (r & IWI_INTR_FW_INITED)
wakeup(sc);
if (r & IWI_INTR_RADIO_OFF) {
DPRINTF(("radio transmitter turned off\n"));
@ -1743,8 +1747,8 @@ iwi_watchdog(struct ifnet *ifp)
if (--sc->sc_tx_timer == 0) {
if_printf(ifp, "device timeout\n");
ifp->if_oerrors++;
ifp->if_flags &= ~IFF_UP;
iwi_stop(sc);
taskqueue_enqueue_fast(taskqueue_fast,
&sc->sc_init_task);
mtx_unlock(&sc->sc_mtx);
return;
}
@ -2378,6 +2382,16 @@ iwi_auth_and_assoc(struct iwi_softc *sc)
return iwi_cmd(sc, IWI_CMD_ASSOCIATE, &assoc, sizeof assoc, 1);
}
/*
* Handler for sc_init_task. This is a simple wrapper around iwi_init().
* It is called on firmware panics or on watchdog timeouts.
*/
static void
iwi_init_task(void *context, int pending)
{
iwi_init(context);
}
static void
iwi_init(void *priv)
{
@ -2392,9 +2406,9 @@ iwi_init(void *priv)
/*
* iwi_init() is exposed through ifp->if_init so it might be called
* without the driver's lock held. Since msleep() doesn't like
* being called on a recursed mutex, we acquire the driver's lock
* only if we're not already holding it.
* without the driver's lock held. Since msleep() doesn't like being
* called on a recursed mutex, we acquire the driver's lock only if
* we're not already holding it.
*/
if (!(owned = mtx_owned(&sc->sc_mtx)))
mtx_lock(&sc->sc_mtx);
@ -2420,13 +2434,13 @@ iwi_init(void *priv)
switch (ic->ic_opmode) {
case IEEE80211_M_STA:
imagename = "iwi-bss";
imagename = "iwi_bss";
break;
case IEEE80211_M_IBSS:
imagename = "iwi-ibss";
imagename = "iwi_ibss";
break;
case IEEE80211_M_MONITOR:
imagename = "iwi-monitor";
imagename = "iwi_monitor";
break;
default:
imagename = NULL; /* should not get there */
@ -2509,11 +2523,12 @@ iwi_init(void *priv)
goto fail2;
}
firmware_put(fp, FIRMWARE_UNLOAD);
sc->flags |= IWI_FLAG_FW_INITED;
if (iwi_config(sc) != 0) {
device_printf(sc->sc_dev, "device configuration failed\n");
goto fail2;
goto fail1;
}
if (ic->ic_opmode != IEEE80211_M_MONITOR) {

3
sys/dev/iwi/if_iwivar.h
View file

@ -1,7 +1,7 @@
/* $FreeBSD$ */
/*-
* Copyright (c) 2004, 2005
* Copyright (c) 2004-2006
* Damien Bergamini <damien.bergamini@free.fr>. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
@ -117,6 +117,7 @@ struct iwi_softc {
struct mtx sc_mtx;
struct unrhdr *sc_unr;
struct task sc_init_task;
uint32_t flags;
#define IWI_FLAG_FW_INITED (1 << 0)