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-rw-r--r--sys/dev/usb/if_smsc.c17
-rw-r--r--sys/dev/usb/if_smscreg.h6
2 files changed, 15 insertions, 8 deletions
diff --git a/sys/dev/usb/if_smsc.c b/sys/dev/usb/if_smsc.c
index 0bd0ece62e6..bc21a1f41cc 100644
--- a/sys/dev/usb/if_smsc.c
+++ b/sys/dev/usb/if_smsc.c
@@ -1,4 +1,4 @@
-/* $OpenBSD: if_smsc.c,v 1.3 2012/09/27 12:05:02 jsg Exp $ */
+/* $OpenBSD: if_smsc.c,v 1.4 2012/09/27 12:38:11 jsg Exp $ */
/* $FreeBSD: src/sys/dev/usb/net/if_smsc.c,v 1.1 2012/08/15 04:03:55 gonzo Exp $ */
/*-
* Copyright (c) 2012
@@ -595,7 +595,7 @@ smsc_init(void *xsc)
for (i = 0; i < SMSC_RX_LIST_CNT; i++) {
c = &sc->sc_cdata.rx_chain[i];
usbd_setup_xfer(c->sc_xfer, sc->sc_ep[SMSC_ENDPT_RX],
- c, c->sc_buf, SMSC_BUFSZ,
+ c, c->sc_buf, sc->sc_bufsz,
USBD_SHORT_XFER_OK | USBD_NO_COPY,
USBD_NO_TIMEOUT, smsc_rxeof);
usbd_transfer(c->sc_xfer);
@@ -995,6 +995,11 @@ smsc_attach(struct device *parent, struct device *self, void *aux)
id = usbd_get_interface_descriptor(sc->sc_iface);
+ if (sc->sc_udev->speed >= USB_SPEED_HIGH)
+ sc->sc_bufsz = SMSC_MAX_BUFSZ;
+ else
+ sc->sc_bufsz = SMSC_MIN_BUFSZ;
+
/* Find endpoints. */
for (i = 0; i < id->bNumEndpoints; i++) {
ed = usbd_interface2endpoint_descriptor(sc->sc_iface, i);
@@ -1290,11 +1295,11 @@ smsc_rxeof(usbd_xfer_handle xfer, usbd_private_handle priv, usbd_status status)
} while (total_len > 0);
done:
- memset(c->sc_buf, 0, SMSC_BUFSZ);
+ memset(c->sc_buf, 0, sc->sc_bufsz);
/* Setup new transfer. */
usbd_setup_xfer(xfer, sc->sc_ep[SMSC_ENDPT_RX],
- c, c->sc_buf, SMSC_BUFSZ,
+ c, c->sc_buf, sc->sc_bufsz,
USBD_SHORT_XFER_OK | USBD_NO_COPY,
USBD_NO_TIMEOUT, smsc_rxeof);
usbd_transfer(xfer);
@@ -1364,7 +1369,7 @@ smsc_tx_list_init(struct smsc_softc *sc)
if (c->sc_xfer == NULL)
return (ENOBUFS);
c->sc_buf = usbd_alloc_buffer(c->sc_xfer,
- SMSC_BUFSZ);
+ sc->sc_bufsz);
if (c->sc_buf == NULL) {
usbd_free_xfer(c->sc_xfer);
return (ENOBUFS);
@@ -1393,7 +1398,7 @@ smsc_rx_list_init(struct smsc_softc *sc)
if (c->sc_xfer == NULL)
return (ENOBUFS);
c->sc_buf = usbd_alloc_buffer(c->sc_xfer,
- SMSC_BUFSZ);
+ sc->sc_bufsz);
if (c->sc_buf == NULL) {
usbd_free_xfer(c->sc_xfer);
return (ENOBUFS);
diff --git a/sys/dev/usb/if_smscreg.h b/sys/dev/usb/if_smscreg.h
index f642fdefaa8..acd8b8c80ff 100644
--- a/sys/dev/usb/if_smscreg.h
+++ b/sys/dev/usb/if_smscreg.h
@@ -1,4 +1,4 @@
-/* $OpenBSD: if_smscreg.h,v 1.1 2012/09/19 16:33:04 jsg Exp $ */
+/* $OpenBSD: if_smscreg.h,v 1.2 2012/09/27 12:38:11 jsg Exp $ */
/*-
* Copyright (c) 2012
* Ben Gray <bgray@freebsd.org>.
@@ -297,11 +297,13 @@ struct smsc_softc {
struct timeout sc_stat_ch;
struct timeval sc_rx_notice;
+ u_int sc_bufsz;
uint32_t sc_flags;
#define SMSC_FLAG_LINK 0x0001
};
-#define SMSC_BUFSZ 18944
+#define SMSC_MIN_BUFSZ 2048
+#define SMSC_MAX_BUFSZ 18944
#endif /* _IF_SMSCREG_H_ */