Module Name: src
Committed By: skrll
Date: Sun Dec 11 15:01:37 UTC 2016
Modified Files:
src/sys/dev/usb: if_athn_usb.c if_athn_usb.h
Log Message:
Fix some bugs introduced by the nick-nhusb merge and related to the
Tx Interrupt pipe transfer handling
While I'm here make some other changes moving towards MPification
PR/51151: athn panic on attach
PR/51458: usb athn panic
To generate a diff of this commit:
cvs rdiff -u -r1.17 -r1.18 src/sys/dev/usb/if_athn_usb.c
cvs rdiff -u -r1.3 -r1.4 src/sys/dev/usb/if_athn_usb.h
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/usb/if_athn_usb.c
diff -u src/sys/dev/usb/if_athn_usb.c:1.17 src/sys/dev/usb/if_athn_usb.c:1.18
--- src/sys/dev/usb/if_athn_usb.c:1.17 Sun Dec 11 08:30:39 2016
+++ src/sys/dev/usb/if_athn_usb.c Sun Dec 11 15:01:37 2016
@@ -1,4 +1,4 @@
-/* $NetBSD: if_athn_usb.c,v 1.17 2016/12/11 08:30:39 skrll Exp $ */
+/* $NetBSD: if_athn_usb.c,v 1.18 2016/12/11 15:01:37 skrll Exp $ */
/* $OpenBSD: if_athn_usb.c,v 1.12 2013/01/14 09:50:31 jsing Exp $ */
/*-
@@ -22,7 +22,7 @@
*/
#include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: if_athn_usb.c,v 1.17 2016/12/11 08:30:39 skrll Exp $");
+__KERNEL_RCSID(0, "$NetBSD: if_athn_usb.c,v 1.18 2016/12/11 15:01:37 skrll Exp $");
#ifdef _KERNEL_OPT
#include "opt_inet.h"
@@ -94,6 +94,7 @@ CFATTACH_DECL_NEW(athn_usb, sizeof(struc
Static int athn_usb_alloc_rx_list(struct athn_usb_softc *);
Static int athn_usb_alloc_tx_cmd(struct athn_usb_softc *);
+Static int athn_usb_alloc_tx_msg(struct athn_usb_softc *);
Static int athn_usb_alloc_tx_list(struct athn_usb_softc *);
Static void athn_usb_attachhook(device_t);
Static void athn_usb_bcneof(struct usbd_xfer *, void *,
@@ -108,6 +109,7 @@ Static void athn_usb_do_async(struct ath
void (*)(struct athn_usb_softc *, void *), void *, int);
Static void athn_usb_free_rx_list(struct athn_usb_softc *);
Static void athn_usb_free_tx_cmd(struct athn_usb_softc *);
+Static void athn_usb_free_tx_msg(struct athn_usb_softc *);
Static void athn_usb_free_tx_list(struct athn_usb_softc *);
Static int athn_usb_htc_connect_svc(struct athn_usb_softc *, uint16_t,
uint8_t, uint8_t, uint8_t *);
@@ -115,6 +117,7 @@ Static int athn_usb_htc_msg(struct athn_
int);
Static int athn_usb_htc_setup(struct athn_usb_softc *);
Static int athn_usb_init(struct ifnet *);
+Static int athn_usb_init_locked(struct ifnet *);
Static void athn_usb_intr(struct usbd_xfer *, void *,
usbd_status);
Static int athn_usb_ioctl(struct ifnet *, u_long, void *);
@@ -140,7 +143,9 @@ Static void athn_usb_rx_wmi_ctrl(struct
Static void athn_usb_rxeof(struct usbd_xfer *, void *,
usbd_status);
Static void athn_usb_start(struct ifnet *);
+//Static void athn_usb_start_locked(struct ifnet *);
Static void athn_usb_stop(struct ifnet *);
+Static void athn_usb_stop_locked(struct ifnet *);
Static void athn_usb_swba(struct athn_usb_softc *);
Static int athn_usb_switch_chan(struct athn_softc *,
struct ieee80211_channel *, struct ieee80211_channel *);
@@ -152,9 +157,8 @@ Static void athn_usb_txeof(struct usbd_x
Static void athn_usb_updateslot(struct ifnet *);
Static void athn_usb_updateslot_cb(struct athn_usb_softc *, void *);
Static void athn_usb_wait_async(struct athn_usb_softc *);
-Static void athn_usb_wait_cmd(struct athn_usb_softc *);
-Static void athn_usb_wait_msg(struct athn_usb_softc *);
-Static void athn_usb_wait_wmi(struct athn_usb_softc *);
+Static int athn_usb_wait_cmd(struct athn_usb_softc *);
+Static int athn_usb_wait_msg(struct athn_usb_softc *);
Static void athn_usb_watchdog(struct ifnet *);
Static int athn_usb_wmi_xcmd(struct athn_usb_softc *, uint16_t, void *,
int, void *);
@@ -268,6 +272,13 @@ athn_usb_attach(device_t parent, device_
sc->sc_ops.write = athn_usb_write;
sc->sc_ops.write_barrier = athn_usb_write_barrier;
+ mutex_init(&usc->usc_lock, MUTEX_DEFAULT, IPL_NONE);
+
+ cv_init(&usc->usc_cmd_cv, "athncmd");
+ mutex_init(&usc->usc_cmd_mtx, MUTEX_DEFAULT, IPL_SOFTUSB);
+ cv_init(&usc->usc_msg_cv, "athnmsg");
+ mutex_init(&usc->usc_msg_mtx, MUTEX_DEFAULT, IPL_SOFTUSB);
+
cv_init(&usc->usc_task_cv, "athntsk");
mutex_init(&usc->usc_task_mtx, MUTEX_DEFAULT, IPL_NET);
mutex_init(&usc->usc_tx_mtx, MUTEX_DEFAULT, IPL_NONE);
@@ -295,6 +306,10 @@ athn_usb_attach(device_t parent, device_
if (athn_usb_alloc_tx_cmd(usc) != 0)
goto fail;
+ /* Allocate xfer for firmware commands. */
+ if (athn_usb_alloc_tx_msg(usc) != 0)
+ goto fail;
+
/* Allocate Tx/Rx buffers. */
error = athn_usb_alloc_rx_list(usc);
if (error != 0)
@@ -309,13 +324,23 @@ athn_usb_attach(device_t parent, device_
return;
fail:
+
/* Free Tx/Rx buffers. */
athn_usb_abort_pipes(usc);
athn_usb_free_tx_list(usc);
athn_usb_free_rx_list(usc);
athn_usb_free_tx_cmd(usc);
+ athn_usb_free_tx_msg(usc);
athn_usb_close_pipes(usc);
usb_rem_task(usc->usc_udev, &usc->usc_task);
+
+ cv_destroy(&usc->usc_cmd_cv);
+ cv_destroy(&usc->usc_msg_cv);
+
+ mutex_destroy(&usc->usc_lock);
+
+ mutex_destroy(&usc->usc_cmd_mtx);
+ mutex_destroy(&usc->usc_msg_mtx);
mutex_destroy(&usc->usc_tx_mtx);
mutex_destroy(&usc->usc_task_mtx);
}
@@ -447,9 +472,12 @@ athn_usb_detach(device_t self, int flags
s = splusb();
usc->usc_dying = 1;
- athn_usb_wait_wmi(usc);
+ mutex_enter(&usc->usc_cmd_mtx);
athn_usb_wait_cmd(usc);
+ mutex_exit(&usc->usc_cmd_mtx);
+ mutex_enter(&usc->usc_msg_mtx);
athn_usb_wait_msg(usc);
+ mutex_exit(&usc->usc_msg_mtx);
athn_usb_wait_async(usc);
usb_rem_task(usc->usc_udev, &usc->usc_task);
@@ -734,6 +762,40 @@ athn_usb_free_tx_cmd(struct athn_usb_sof
usbd_destroy_xfer(xfer);
}
+Static int
+athn_usb_alloc_tx_msg(struct athn_usb_softc *usc)
+{
+ struct athn_usb_tx_data *data = &usc->usc_tx_msg;
+
+ DPRINTFN(DBG_FN, usc, "\n");
+
+ data->sc = usc; /* Backpointer for callbacks. */
+
+ int err = usbd_create_xfer(usc->usc_tx_intr_pipe, ATHN_USB_TXCMDSZ,
+ 0, 0, &data->xfer);
+ if (err) {
+ aprint_error_dev(usc->usc_dev,
+ "could not allocate command xfer\n");
+ return err;
+ }
+ data->buf = usbd_get_buffer(data->xfer);
+
+ return 0;
+}
+
+Static void
+athn_usb_free_tx_msg(struct athn_usb_softc *usc)
+{
+ struct usbd_xfer *xfer;
+
+ DPRINTFN(DBG_FN, usc, "\n");
+
+ CTASSERT(sizeof(xfer) == sizeof(void *));
+ xfer = atomic_swap_ptr(&usc->usc_tx_msg.xfer, NULL);
+ if (xfer != NULL)
+ usbd_destroy_xfer(xfer);
+}
+
Static void
athn_usb_task(void *arg)
{
@@ -811,7 +873,7 @@ athn_usb_load_firmware(struct athn_usb_s
u_char *fw, *ptr;
size_t size, remain;
uint32_t addr;
- int s, mlen, error;
+ int mlen, error;
DPRINTFN(DBG_FN, sc, "\n");
@@ -882,14 +944,24 @@ athn_usb_load_firmware(struct athn_usb_s
USETW(req.wValue, addr);
USETW(req.wLength, 0);
- s = splusb();
+ mutex_enter(&usc->usc_msg_mtx);
+ error = athn_usb_wait_msg(usc);
+ if (error) {
+ mutex_exit(&usc->usc_msg_mtx);
+ return error;
+ }
+
usc->usc_wait_msg_id = AR_HTC_MSG_READY;
error = usbd_do_request(usc->usc_udev, &req, NULL);
+
/* Wait at most 1 second for firmware to boot. */
- if (error == 0 && usc->usc_wait_msg_id != 0)
- error = tsleep(&usc->usc_wait_msg_id, 0, "athnfw", hz);
- usc->usc_wait_msg_id = 0;
- splx(s);
+ if (error == 0)
+ error = athn_usb_wait_msg(usc);
+
+ mutex_exit(&usc->usc_msg_mtx);
+
+ DPRINTFN(DBG_FN, sc, "return %d\n", error);
+
return error;
}
@@ -897,7 +969,7 @@ Static int
athn_usb_htc_msg(struct athn_usb_softc *usc, uint16_t msg_id, void *buf,
int len)
{
- struct athn_usb_tx_data *data = &usc->usc_tx_cmd;
+ struct athn_usb_tx_data *data = &usc->usc_tx_msg;
struct ar_htc_frame_hdr *htc;
struct ar_htc_msg_hdr *msg;
@@ -906,6 +978,8 @@ athn_usb_htc_msg(struct athn_usb_softc *
DPRINTFN(DBG_FN, usc, "\n");
+ KASSERT(mutex_owned(&usc->usc_msg_mtx));
+
htc = (struct ar_htc_frame_hdr *)data->buf;
memset(htc, 0, sizeof(*htc));
htc->endpoint_id = 0;
@@ -920,13 +994,15 @@ athn_usb_htc_msg(struct athn_usb_softc *
sizeof(*htc) + sizeof(*msg) + len,
USBD_SHORT_XFER_OK, ATHN_USB_CMD_TIMEOUT, NULL);
return usbd_sync_transfer(data->xfer);
+
+
}
Static int
athn_usb_htc_setup(struct athn_usb_softc *usc)
{
struct ar_htc_msg_config_pipe cfg;
- int s, error;
+ int error;
/*
* Connect WMI services to USB pipes.
@@ -973,26 +1049,41 @@ athn_usb_htc_setup(struct athn_usb_softc
cfg.pipe_id = UE_GET_ADDR(AR_PIPE_TX_DATA);
cfg.credits = (usc->usc_flags & ATHN_USB_FLAG_AR7010) ? 45 : 33;
- s = splusb();
+ mutex_enter(&usc->usc_msg_mtx);
+ error = athn_usb_wait_msg(usc);
+ if (error) {
+ mutex_exit(&usc->usc_msg_mtx);
+ return error;
+ }
usc->usc_wait_msg_id = AR_HTC_MSG_CONF_PIPE_RSP;
error = athn_usb_htc_msg(usc, AR_HTC_MSG_CONF_PIPE, &cfg, sizeof(cfg));
- if (error == 0 && usc->usc_wait_msg_id != 0)
- error = tsleep(&usc->usc_wait_msg_id, 0, "athnhtc", hz);
- usc->usc_wait_msg_id = 0;
-
- splx(s);
if (error != 0) {
- aprint_error_dev(usc->usc_dev, "could not configure pipe\n");
+ aprint_error_dev(usc->usc_dev, "could not request pipe configurations\n");
+ mutex_exit(&usc->usc_msg_mtx);
+ return error;
+ }
+ error = athn_usb_wait_msg(usc);
+ if (error) {
+ mutex_exit(&usc->usc_msg_mtx);
return error;
}
error = athn_usb_htc_msg(usc, AR_HTC_MSG_SETUP_COMPLETE, NULL, 0);
if (error != 0) {
- aprint_error_dev(usc->usc_dev, "could not complete setup\n");
+ aprint_error_dev(usc->usc_dev, "could not request complete setup\n");
+ mutex_exit(&usc->usc_msg_mtx);
return error;
}
+ error = athn_usb_wait_msg(usc);
+ if (error) {
+ mutex_exit(&usc->usc_msg_mtx);
+ return error;
+ }
+
+ mutex_exit(&usc->usc_msg_mtx);
+
return 0;
}
@@ -1002,7 +1093,7 @@ athn_usb_htc_connect_svc(struct athn_usb
{
struct ar_htc_msg_conn_svc msg;
struct ar_htc_msg_conn_svc_rsp rsp;
- int s, error;
+ int error;
DPRINTFN(DBG_FN, usc, "\n");
@@ -1010,17 +1101,19 @@ athn_usb_htc_connect_svc(struct athn_usb
msg.svc_id = htobe16(svc_id);
msg.dl_pipeid = UE_GET_ADDR(dl_pipe);
msg.ul_pipeid = UE_GET_ADDR(ul_pipe);
- s = splusb();
+
+ mutex_enter(&usc->usc_msg_mtx);
+ athn_usb_wait_msg(usc);
usc->usc_msg_conn_svc_rsp = &rsp;
usc->usc_wait_msg_id = AR_HTC_MSG_CONN_SVC_RSP;
error = athn_usb_htc_msg(usc, AR_HTC_MSG_CONN_SVC, &msg, sizeof(msg));
- if (error == 0 && usc->usc_wait_msg_id != 0)
- error = tsleep(&usc->usc_wait_msg_id, 0, "athnhtc", hz);
- usc->usc_wait_msg_id = 0;
+ if (error == 0)
+ error = athn_usb_wait_msg(usc);
+
+ mutex_exit(&usc->usc_msg_mtx);
- splx(s);
if (error != 0) {
aprint_error_dev(usc->usc_dev,
"error waiting for service %d connection\n", svc_id);
@@ -1041,24 +1134,34 @@ athn_usb_htc_connect_svc(struct athn_usb
return 0;
}
-Static void
+Static int
athn_usb_wait_msg(struct athn_usb_softc *usc)
{
+ DPRINTFN(DBG_FN, usc, "\n");
- DPRINTFN(DBG_FN, usc, "\n");
+ KASSERT(mutex_owned(&usc->usc_msg_mtx));
+
+ int error = 0;
+ while (usc->usc_wait_msg_id)
+ error = cv_timedwait(&usc->usc_msg_cv, &usc->usc_msg_mtx, hz);
- while (__predict_false(usc->usc_wait_msg_id))
- tsleep(&usc->usc_wait_msg_id, 0, "athnmsg", hz);
+ return error;
}
-Static void
+Static int
athn_usb_wait_cmd(struct athn_usb_softc *usc)
{
- DPRINTFN(DBG_FN, usc, "\n");
+ DPRINTFN(DBG_FN, usc, "\n");
+
+ KASSERT(mutex_owned(&usc->usc_cmd_mtx));
+
+ int error = 0;
+ while (usc->usc_wait_cmd_id)
+ error = cv_timedwait(&usc->usc_cmd_cv, &usc->usc_cmd_mtx, hz);
+
+ return error;
- while (__predict_false(usc->usc_wait_cmd_id))
- tsleep(&usc->usc_wait_cmd_id, 0, "athncmd", hz);
}
Static void
@@ -1067,13 +1170,10 @@ athn_usb_wmieof(struct usbd_xfer *xfer,
{
struct athn_usb_softc *usc = priv;
- DPRINTFN(DBG_FN, usc, "\n");
+ DPRINTFN(DBG_FN, usc, "\n");
if (__predict_false(status == USBD_STALLED))
usbd_clear_endpoint_stall_async(usc->usc_tx_intr_pipe);
-
- usc->usc_wmi_done = 1;
- wakeup(&usc->usc_wmi_done);
}
Static int
@@ -1083,12 +1183,20 @@ athn_usb_wmi_xcmd(struct athn_usb_softc
struct athn_usb_tx_data *data = &usc->usc_tx_cmd;
struct ar_htc_frame_hdr *htc;
struct ar_wmi_cmd_hdr *wmi;
- int s, error;
+ int error;
if (usc->usc_dying)
return EIO;
- DPRINTFN(DBG_FN, usc, "\n");
+ DPRINTFN(DBG_FN, usc, "cmd_id %#x\n", cmd_id);
+
+ mutex_enter(&usc->usc_cmd_mtx);
+ error = athn_usb_wait_cmd(usc);
+
+ if (error) {
+ mutex_exit(&usc->usc_cmd_mtx);
+ return error;
+ }
htc = (struct ar_htc_frame_hdr *)data->buf;
memset(htc, 0, sizeof(*htc));
@@ -1107,30 +1215,23 @@ athn_usb_wmi_xcmd(struct athn_usb_softc
USBD_SHORT_XFER_OK, ATHN_USB_CMD_TIMEOUT,
athn_usb_wmieof);
- s = splusb();
- usc->usc_wmi_done = 0;
usc->usc_wait_cmd_id = cmd_id;
- error = usbd_transfer(data->xfer);
- if (__predict_true(error == 0 || error == USBD_IN_PROGRESS)) {
- usc->usc_obuf = obuf;
+ usc->usc_obuf = obuf;
+
+ error = usbd_sync_transfer(data->xfer);
+ if (error) {
+ DPRINTFN(DBG_FN, usc, "transfer error %d\n", error);
- /* Wait for WMI command to complete. */
- error = tsleep(&usc->usc_wait_cmd_id, 0, "athnwmi", hz);
- usc->usc_wait_cmd_id = 0;
- athn_usb_wait_wmi(usc);
+ mutex_exit(&usc->usc_cmd_mtx);
+
+ return error;
}
- splx(s);
- return error;
-}
-Static void
-athn_usb_wait_wmi(struct athn_usb_softc *usc)
-{
+ error = athn_usb_wait_cmd(usc);
- DPRINTFN(DBG_FN, usc, "\n");
+ mutex_exit(&usc->usc_cmd_mtx);
- while (__predict_false(!usc->usc_wmi_done))
- tsleep(&usc->usc_wmi_done, 0, "athnwmi", 0);
+ return error;
}
#ifdef unused
@@ -1869,15 +1970,18 @@ athn_usb_rx_wmi_ctrl(struct athn_usb_sof
cmd_id = be16toh(wmi->cmd_id);
if (!(cmd_id & AR_WMI_EVT_FLAG)) {
- if (usc->usc_wait_cmd_id != cmd_id)
- return; /* Unexpected reply. */
- if (usc->usc_obuf != NULL) {
- /* Copy answer into caller supplied buffer. */
- memcpy(usc->usc_obuf, &wmi[1], len - sizeof(*wmi));
- }
- /* Notify caller of completion. */
- usc->usc_wait_cmd_id = 0;
- wakeup(&usc->usc_wait_cmd_id);
+ mutex_enter(&usc->usc_cmd_mtx);
+ if (usc->usc_wait_cmd_id == cmd_id) {
+
+ if (usc->usc_obuf != NULL) {
+ /* Copy answer into caller supplied buffer. */
+ memcpy(usc->usc_obuf, &wmi[1], len - sizeof(*wmi));
+ }
+ /* Notify caller of completion. */
+ usc->usc_wait_cmd_id = 0;
+ cv_broadcast(&usc->usc_cmd_cv);
+ }
+ mutex_exit(&usc->usc_cmd_mtx);
return;
}
/*
@@ -1971,20 +2075,28 @@ athn_usb_intr(struct usbd_xfer *xfer, vo
switch (msg_id) {
case AR_HTC_MSG_READY:
case AR_HTC_MSG_CONF_PIPE_RSP:
- if (usc->usc_wait_msg_id != msg_id)
- break;
- usc->usc_wait_msg_id = 0;
- wakeup(&usc->usc_wait_msg_id);
+ mutex_enter(&usc->usc_msg_mtx);
+ DPRINTFN(DBG_RX, usc, "AR_HTC_MSG_READY: %d vs %d\n",
+ usc->usc_wait_msg_id, msg_id);
+ if (usc->usc_wait_msg_id == msg_id) {
+ usc->usc_wait_msg_id = 0;
+ cv_broadcast(&usc->usc_msg_cv);
+ }
+ mutex_exit(&usc->usc_msg_mtx);
break;
case AR_HTC_MSG_CONN_SVC_RSP:
- if (usc->usc_wait_msg_id != msg_id)
- break;
- if (usc->usc_msg_conn_svc_rsp != NULL) {
- memcpy(usc->usc_msg_conn_svc_rsp, &msg[1],
- sizeof(*usc->usc_msg_conn_svc_rsp));
+ mutex_enter(&usc->usc_msg_mtx);
+ DPRINTFN(DBG_RX, usc, "AR_HTC_MSG_CONN_SVC_RSP: %d vs %d\n",
+ usc->usc_wait_msg_id, msg_id);
+ if (usc->usc_wait_msg_id == msg_id) {
+ if (usc->usc_msg_conn_svc_rsp != NULL) {
+ memcpy(usc->usc_msg_conn_svc_rsp, &msg[1],
+ sizeof(*usc->usc_msg_conn_svc_rsp));
+ }
+ usc->usc_wait_msg_id = 0;
+ cv_broadcast(&usc->usc_msg_cv);
}
- usc->usc_wait_msg_id = 0;
- wakeup(&usc->usc_wait_msg_id);
+ mutex_exit(&usc->usc_msg_mtx);
break;
default:
DPRINTFN(DBG_RX, usc, "HTC message %d ignored\n", msg_id);
@@ -2556,8 +2668,10 @@ athn_usb_ioctl(struct ifnet *ifp, u_long
error = 0;
if (IS_UP_AND_RUNNING(ifp) &&
ic->ic_roaming != IEEE80211_ROAMING_MANUAL) {
- athn_usb_stop(ifp);
- error = athn_usb_init(ifp);
+ mutex_enter(&usc->usc_lock);
+ athn_usb_stop_locked(ifp);
+ error = athn_usb_init_locked(ifp);
+ mutex_exit(&usc->usc_lock);
}
}
splx(s);
@@ -2569,6 +2683,19 @@ athn_usb_init(struct ifnet *ifp)
{
struct athn_softc *sc = ifp->if_softc;
struct athn_usb_softc *usc = ATHN_USB_SOFTC(sc);
+
+ mutex_enter(&usc->usc_lock);
+ int ret = athn_usb_init_locked(ifp);
+ mutex_exit(&usc->usc_lock);
+
+ return ret;
+}
+
+Static int
+athn_usb_init_locked(struct ifnet *ifp)
+{
+ struct athn_softc *sc = ifp->if_softc;
+ struct athn_usb_softc *usc = ATHN_USB_SOFTC(sc);
struct athn_ops *ops = &sc->sc_ops;
struct ieee80211com *ic = &sc->sc_ic;
struct ieee80211_channel *curchan, *extchan;
@@ -2692,6 +2819,7 @@ athn_usb_init(struct ifnet *ifp)
if (error != 0)
goto fail;
+
/* Queue Rx xfers. */
for (i = 0; i < ATHN_USB_RX_LIST_COUNT; i++) {
data = &usc->usc_rx_data[i];
@@ -2735,6 +2863,17 @@ athn_usb_stop(struct ifnet *ifp)
{
struct athn_softc *sc = ifp->if_softc;
struct athn_usb_softc *usc = ATHN_USB_SOFTC(sc);
+
+ mutex_enter(&usc->usc_lock);
+ athn_usb_stop_locked(ifp);
+ mutex_exit(&usc->usc_lock);
+}
+
+Static void
+athn_usb_stop_locked(struct ifnet *ifp)
+{
+ struct athn_softc *sc = ifp->if_softc;
+ struct athn_usb_softc *usc = ATHN_USB_SOFTC(sc);
struct ieee80211com *ic = &sc->sc_ic;
struct ar_htc_target_vif hvif;
struct mbuf *m;
@@ -2759,10 +2898,6 @@ athn_usb_stop(struct ifnet *ifp)
usbd_abort_pipe(usc->usc_tx_data_pipe);
usbd_abort_pipe(usc->usc_rx_data_pipe);
- /* Free Tx/Rx buffers. */
- athn_usb_free_tx_list(usc);
- athn_usb_free_rx_list(usc);
-
/* Flush Rx stream. */
CTASSERT(sizeof(m) == sizeof(void *));
m = atomic_swap_ptr(&usc->usc_rx_stream.m, NULL);
Index: src/sys/dev/usb/if_athn_usb.h
diff -u src/sys/dev/usb/if_athn_usb.h:1.3 src/sys/dev/usb/if_athn_usb.h:1.4
--- src/sys/dev/usb/if_athn_usb.h:1.3 Sat Apr 23 10:15:31 2016
+++ src/sys/dev/usb/if_athn_usb.h Sun Dec 11 15:01:37 2016
@@ -1,4 +1,4 @@
-/* $NetBSD: if_athn_usb.h,v 1.3 2016/04/23 10:15:31 skrll Exp $ */
+/* $NetBSD: if_athn_usb.h,v 1.4 2016/12/11 15:01:37 skrll Exp $ */
/* $OpenBSD: if_athn_usb.h,v 1.3 2012/11/10 14:35:06 mikeb Exp $ */
/*-
@@ -443,6 +443,13 @@ struct athn_usb_softc {
int usc_athn_attached;
+ kmutex_t usc_lock;
+
+ kmutex_t usc_msg_mtx;
+ kcondvar_t usc_msg_cv;
+ kmutex_t usc_cmd_mtx;
+ kcondvar_t usc_cmd_cv;
+
kcondvar_t usc_task_cv;
kmutex_t usc_task_mtx;
kmutex_t usc_tx_mtx;
@@ -469,7 +476,6 @@ struct athn_usb_softc {
struct ar_wmi_cmd_reg_write usc_wbuf[AR_MAX_WRITE_COUNT];
int usc_wcount;
- int usc_wmi_done;
uint16_t usc_wmi_seq_no;
uint16_t usc_wait_cmd_id;
uint16_t usc_wait_msg_id;
@@ -481,6 +487,7 @@ struct athn_usb_softc {
struct athn_usb_tx_data usc_tx_data[ATHN_USB_TX_LIST_COUNT];
TAILQ_HEAD(, athn_usb_tx_data) usc_tx_free_list;
struct athn_usb_tx_data usc_tx_cmd;
+ struct athn_usb_tx_data usc_tx_msg;
struct athn_usb_tx_data *usc_tx_bcn;
uint8_t usc_ep_ctrl;
