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[src/nick-nhusb]: src/sys/dev/usb WIP MPification
details: https://anonhg.NetBSD.org/src/rev/0f683b5171b2
branches: nick-nhusb
changeset: 334654:0f683b5171b2
user: skrll <skrll%NetBSD.org@localhost>
date: Tue Sep 05 07:04:17 2017 +0000
description:
WIP MPification
diffstat:
sys/dev/usb/if_kue.c | 118 +++++++++++++++++++++++++----------------------
sys/dev/usb/if_kuereg.h | 6 ++-
2 files changed, 68 insertions(+), 56 deletions(-)
diffs (289 lines):
diff -r c16ca664bba0 -r 0f683b5171b2 sys/dev/usb/if_kue.c
--- a/sys/dev/usb/if_kue.c Tue Sep 05 07:01:12 2017 +0000
+++ b/sys/dev/usb/if_kue.c Tue Sep 05 07:04:17 2017 +0000
@@ -1,4 +1,4 @@
-/* $NetBSD: if_kue.c,v 1.81.4.14 2017/08/28 17:52:27 skrll Exp $ */
+/* $NetBSD: if_kue.c,v 1.81.4.15 2017/09/05 07:04:17 skrll Exp $ */
/*
* Copyright (c) 1997, 1998, 1999, 2000
@@ -71,7 +71,7 @@
*/
#include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: if_kue.c,v 1.81.4.14 2017/08/28 17:52:27 skrll Exp $");
+__KERNEL_RCSID(0, "$NetBSD: if_kue.c,v 1.81.4.15 2017/09/05 07:04:17 skrll Exp $");
#ifdef _KERNEL_OPT
#include "opt_inet.h"
@@ -166,15 +166,20 @@
kue_detach, kue_activate);
static int kue_tx_list_init(struct kue_softc *);
+static void kue_tx_list_free(struct kue_softc *);
static int kue_rx_list_init(struct kue_softc *);
+static void kue_rx_list_free(struct kue_softc *);
static int kue_send(struct kue_softc *, struct mbuf *, int);
static int kue_open_pipes(struct kue_softc *);
static void kue_rxeof(struct usbd_xfer *, void *, usbd_status);
static void kue_txeof(struct usbd_xfer *, void *, usbd_status);
static void kue_start(struct ifnet *);
+static void kue_start_locked(struct ifnet *);
static int kue_ioctl(struct ifnet *, u_long, void *);
static void kue_init(void *);
+static void kue_init_locked(void *);
static void kue_stop(struct kue_softc *);
+static void kue_stop_locked(struct kue_softc *);
static void kue_watchdog(struct ifnet *);
static void kue_setmulti(struct kue_softc *);
@@ -398,7 +403,6 @@
struct kue_softc *sc = device_private(self);
struct usb_attach_arg *uaa = aux;
char *devinfop;
- int s;
struct ifnet *ifp;
struct usbd_device * dev = uaa->uaa_device;
struct usbd_interface * iface;
@@ -479,8 +483,6 @@
sc->kue_mcfilters = kmem_alloc(KUE_MCFILTCNT(sc) * ETHER_ADDR_LEN,
KM_SLEEP);
- s = splnet();
-
/*
* A KLSI chip was detected. Inform the world.
*/
@@ -506,7 +508,6 @@
RND_TYPE_NET, RND_FLAG_DEFAULT);
sc->kue_attached = true;
- splx(s);
usbd_add_drv_event(USB_EVENT_DRIVER_ATTACH, sc->kue_udev, sc->kue_dev);
@@ -599,6 +600,18 @@
return 0;
}
+static void
+kue_rx_list_free(struct kue_softc *sc)
+{
+ /* Free RX resources. */
+ for (int i = 0; i < KUE_RX_LIST_CNT; i++) {
+ if (sc->kue_cdata.kue_rx_chain[i].kue_xfer != NULL) {
+ usbd_destroy_xfer(sc->kue_cdata.kue_rx_chain[i].kue_xfer);
+ sc->kue_cdata.kue_rx_chain[i].kue_xfer = NULL;
+ }
+ }
+}
+
static int
kue_tx_list_init(struct kue_softc *sc)
{
@@ -625,6 +638,18 @@
return 0;
}
+static void
+kue_tx_list_free(struct kue_softc *sc)
+{
+ /* Free TX resources. */
+ for (int i = 0; i < KUE_TX_LIST_CNT; i++) {
+ if (sc->kue_cdata.kue_tx_chain[i].kue_xfer != NULL) {
+ usbd_destroy_xfer(sc->kue_cdata.kue_tx_chain[i].kue_xfer);
+ sc->kue_cdata.kue_tx_chain[i].kue_xfer = NULL;
+ }
+ }
+}
+
/*
* A frame has been uploaded: pass the resulting mbuf chain up to
* the higher level protocols.
@@ -813,6 +838,17 @@
static void
kue_start(struct ifnet *ifp)
{
+ struct kue_softc *sc = ifp->if_softc;
+ KASSERT(ifp->if_extflags & IFEF_START_MPSAFE);
+
+ mutex_enter(&sc->kue_txlock);
+ kue_start_locked(ifp);
+ mutex_exit(&sc->kue_txlock);
+}
+
+static void
+kue_start_locked(struct ifnet *ifp)
+{
struct kue_softc *sc = ifp->if_softc;
struct mbuf *m;
@@ -853,9 +889,18 @@
static void
kue_init(void *xsc)
{
+ struct kue_softc *sc = xsc;
+
+ mutex_enter(&sc->kue_lock);
+ kue_init_locked(xsc);
+ mutex_exit(&sc->kue_lock);
+}
+
+static void
+kue_init_locked(void *xsc)
+{
struct kue_softc *sc = xsc;
struct ifnet *ifp = GET_IFP(sc);
- int s;
uint8_t eaddr[ETHER_ADDR_LEN];
DPRINTFN(5,("%s: %s: enter\n", device_xname(sc->kue_dev),__func__));
@@ -863,8 +908,6 @@
if (ifp->if_flags & IFF_RUNNING)
return;
- s = splnet();
-
memcpy(eaddr, CLLADDR(ifp->if_sadl), sizeof(eaddr));
/* Set MAC address */
kue_ctl(sc, KUE_CTL_WRITE, KUE_CMD_SET_MAC, 0, eaddr, ETHER_ADDR_LEN);
@@ -892,21 +935,18 @@
if (sc->kue_ep[KUE_ENDPT_RX] == NULL) {
if (kue_open_pipes(sc)) {
- splx(s);
return;
}
}
/* Init TX ring. */
if (kue_tx_list_init(sc)) {
printf("%s: tx list init failed\n", device_xname(sc->kue_dev));
- splx(s);
return;
}
/* Init RX ring. */
if (kue_rx_list_init(sc)) {
printf("%s: rx list init failed\n", device_xname(sc->kue_dev));
- splx(s);
return;
}
@@ -922,8 +962,6 @@
ifp->if_flags |= IFF_RUNNING;
ifp->if_flags &= ~IFF_OACTIVE;
-
- splx(s);
}
static int
@@ -957,8 +995,6 @@
kue_ioctl(struct ifnet *ifp, u_long command, void *data)
{
struct kue_softc *sc = ifp->if_softc;
- struct ifaddr *ifa = (struct ifaddr *)data;
- struct ifreq *ifr = (struct ifreq *)data;
int s, error = 0;
DPRINTFN(5,("%s: %s: enter\n", device_xname(sc->kue_dev),__func__));
@@ -969,29 +1005,7 @@
s = splnet();
switch(command) {
- case SIOCINITIFADDR:
- ifp->if_flags |= IFF_UP;
- kue_init(sc);
-
- switch (ifa->ifa_addr->sa_family) {
-#ifdef INET
- case AF_INET:
- arp_ifinit(ifp, ifa);
- break;
-#endif /* INET */
- }
- break;
-
- case SIOCSIFMTU:
- if (ifr->ifr_mtu < ETHERMIN || ifr->ifr_mtu > ETHERMTU)
- error = EINVAL;
- else if ((error = ifioctl_common(ifp, command, data)) == ENETRESET)
- error = 0;
- break;
-
case SIOCSIFFLAGS:
- if ((error = ifioctl_common(ifp, command, data)) != 0)
- break;
if (ifp->if_flags & IFF_UP) {
if (ifp->if_flags & IFF_RUNNING &&
ifp->if_flags & IFF_PROMISC &&
@@ -1059,16 +1073,23 @@
splx(s);
}
+static void
+kue_stop(struct kue_softc *sc)
+{
+ mutex_enter(&sc->kue_lock);
+ kue_stop_locked(sc);
+ mutex_exit(&sc->kue_lock);
+}
+
/*
* Stop the adapter and free any mbufs allocated to the
* RX and TX lists.
*/
static void
-kue_stop(struct kue_softc *sc)
+kue_stop_locked(struct kue_softc *sc)
{
usbd_status err;
struct ifnet *ifp;
- int i;
DPRINTFN(5,("%s: %s: enter\n", device_xname(sc->kue_dev),__func__));
@@ -1100,21 +1121,8 @@
}
}
- /* Free RX resources. */
- for (i = 0; i < KUE_RX_LIST_CNT; i++) {
- if (sc->kue_cdata.kue_rx_chain[i].kue_xfer != NULL) {
- usbd_destroy_xfer(sc->kue_cdata.kue_rx_chain[i].kue_xfer);
- sc->kue_cdata.kue_rx_chain[i].kue_xfer = NULL;
- }
- }
-
- /* Free TX resources. */
- for (i = 0; i < KUE_TX_LIST_CNT; i++) {
- if (sc->kue_cdata.kue_tx_chain[i].kue_xfer != NULL) {
- usbd_destroy_xfer(sc->kue_cdata.kue_tx_chain[i].kue_xfer);
- sc->kue_cdata.kue_tx_chain[i].kue_xfer = NULL;
- }
- }
+ kue_rx_list_free(sc);
+ kue_tx_list_free(sc);
/* Close pipes. */
if (sc->kue_ep[KUE_ENDPT_RX] != NULL) {
diff -r c16ca664bba0 -r 0f683b5171b2 sys/dev/usb/if_kuereg.h
--- a/sys/dev/usb/if_kuereg.h Tue Sep 05 07:01:12 2017 +0000
+++ b/sys/dev/usb/if_kuereg.h Tue Sep 05 07:04:17 2017 +0000
@@ -1,4 +1,4 @@
-/* $NetBSD: if_kuereg.h,v 1.18.24.3 2016/03/20 08:42:19 skrll Exp $ */
+/* $NetBSD: if_kuereg.h,v 1.18.24.4 2017/09/05 07:04:17 skrll Exp $ */
/*
* Copyright (c) 1997, 1998, 1999, 2000
* Bill Paul <wpaul%ee.columbia.edu@localhost>. All rights reserved.
@@ -179,6 +179,10 @@
uint8_t *kue_mcfilters;
struct kue_cdata kue_cdata;
+ kmutex_t kue_lock;
+ kmutex_t kue_txlock;
+ kmutex_t kue_rxlock;
+
bool kue_dying;
bool kue_attached;
u_int kue_rx_errs;
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