Module Name: src
Committed By: riastradh
Date: Thu Mar 3 05:52:20 UTC 2022
Modified Files:
src/sys/dev/usb: if_axe.c if_cdce.c usbnet.c usbnet.h
Log Message:
usbnet: Make the tx/rx locks private to usbnet.c.
Suffice it for the drivers to know that uno_tx_prepare and
uno_rx_loop have exclusive access to the chain, and, for tx,
exclusive access to the mbuf.
To generate a diff of this commit:
cvs rdiff -u -r1.137 -r1.138 src/sys/dev/usb/if_axe.c
cvs rdiff -u -r1.73 -r1.74 src/sys/dev/usb/if_cdce.c
cvs rdiff -u -r1.78 -r1.79 src/sys/dev/usb/usbnet.c
cvs rdiff -u -r1.25 -r1.26 src/sys/dev/usb/usbnet.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_axe.c
diff -u src/sys/dev/usb/if_axe.c:1.137 src/sys/dev/usb/if_axe.c:1.138
--- src/sys/dev/usb/if_axe.c:1.137 Thu Mar 3 05:51:44 2022
+++ src/sys/dev/usb/if_axe.c Thu Mar 3 05:52:20 2022
@@ -1,4 +1,4 @@
-/* $NetBSD: if_axe.c,v 1.137 2022/03/03 05:51:44 riastradh Exp $ */
+/* $NetBSD: if_axe.c,v 1.138 2022/03/03 05:52:20 riastradh Exp $ */
/* $OpenBSD: if_axe.c,v 1.137 2016/04/13 11:03:37 mpi Exp $ */
/*
@@ -87,7 +87,7 @@
*/
#include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: if_axe.c,v 1.137 2022/03/03 05:51:44 riastradh Exp $");
+__KERNEL_RCSID(0, "$NetBSD: if_axe.c,v 1.138 2022/03/03 05:52:20 riastradh Exp $");
#ifdef _KERNEL_OPT
#include "opt_usb.h"
@@ -1136,8 +1136,6 @@ axe_uno_tx_prepare(struct usbnet *un, st
size_t hdr_len = 0, tlr_len = 0;
int length, boundary;
- usbnet_isowned_tx(un);
-
if (!AXE_IS_172(un)) {
/*
* Copy the mbuf data into a contiguous buffer, leaving two
Index: src/sys/dev/usb/if_cdce.c
diff -u src/sys/dev/usb/if_cdce.c:1.73 src/sys/dev/usb/if_cdce.c:1.74
--- src/sys/dev/usb/if_cdce.c:1.73 Thu Mar 3 05:50:22 2022
+++ src/sys/dev/usb/if_cdce.c Thu Mar 3 05:52:20 2022
@@ -1,4 +1,4 @@
-/* $NetBSD: if_cdce.c,v 1.73 2022/03/03 05:50:22 riastradh Exp $ */
+/* $NetBSD: if_cdce.c,v 1.74 2022/03/03 05:52:20 riastradh Exp $ */
/*
* Copyright (c) 1997, 1998, 1999, 2000-2003 Bill Paul <[email protected]>
@@ -40,7 +40,7 @@
*/
#include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: if_cdce.c,v 1.73 2022/03/03 05:50:22 riastradh Exp $");
+__KERNEL_RCSID(0, "$NetBSD: if_cdce.c,v 1.74 2022/03/03 05:52:20 riastradh Exp $");
#include <sys/param.h>
@@ -277,8 +277,6 @@ cdce_uno_rx_loop(struct usbnet * un, str
{
struct ifnet *ifp = usbnet_ifp(un);
- usbnet_isowned_rx(un);
-
/* Strip off CRC added by Zaurus, if present */
if (un->un_flags & CDCE_ZAURUS && total_len > 4)
total_len -= 4;
Index: src/sys/dev/usb/usbnet.c
diff -u src/sys/dev/usb/usbnet.c:1.78 src/sys/dev/usb/usbnet.c:1.79
--- src/sys/dev/usb/usbnet.c:1.78 Thu Mar 3 05:52:11 2022
+++ src/sys/dev/usb/usbnet.c Thu Mar 3 05:52:20 2022
@@ -1,4 +1,4 @@
-/* $NetBSD: usbnet.c,v 1.78 2022/03/03 05:52:11 riastradh Exp $ */
+/* $NetBSD: usbnet.c,v 1.79 2022/03/03 05:52:20 riastradh Exp $ */
/*
* Copyright (c) 2019 Matthew R. Green
@@ -31,7 +31,7 @@
*/
#include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: usbnet.c,v 1.78 2022/03/03 05:52:11 riastradh Exp $");
+__KERNEL_RCSID(0, "$NetBSD: usbnet.c,v 1.79 2022/03/03 05:52:20 riastradh Exp $");
#include <sys/param.h>
#include <sys/kernel.h>
@@ -96,6 +96,9 @@ struct usbnet_private {
volatile unsigned usbnet_number;
+static void usbnet_isowned_rx(struct usbnet *);
+static void usbnet_isowned_tx(struct usbnet *);
+
static int usbnet_modcmd(modcmd_t, void *);
#ifdef USB_DEBUG
@@ -1323,46 +1326,22 @@ usbnet_unlock_core(struct usbnet *un)
mutex_exit(&un->un_pri->unp_core_lock);
}
-kmutex_t *
+kmutex_t*
usbnet_mutex_core(struct usbnet *un)
{
return &un->un_pri->unp_core_lock;
}
-void
-usbnet_lock_rx(struct usbnet *un)
-{
- mutex_enter(&un->un_pri->unp_rxlock);
-}
-
-void
-usbnet_unlock_rx(struct usbnet *un)
-{
- mutex_exit(&un->un_pri->unp_rxlock);
-}
-
-kmutex_t *
-usbnet_mutex_rx(struct usbnet *un)
-{
- return &un->un_pri->unp_rxlock;
-}
-
-void
-usbnet_lock_tx(struct usbnet *un)
-{
- mutex_enter(&un->un_pri->unp_txlock);
-}
-
-void
-usbnet_unlock_tx(struct usbnet *un)
+static void
+usbnet_isowned_rx(struct usbnet *un)
{
- mutex_exit(&un->un_pri->unp_txlock);
+ KASSERT(mutex_owned(&un->un_pri->unp_rxlock));
}
-kmutex_t *
-usbnet_mutex_tx(struct usbnet *un)
+static void
+usbnet_isowned_tx(struct usbnet *un)
{
- return &un->un_pri->unp_txlock;
+ KASSERT(mutex_owned(&un->un_pri->unp_txlock));
}
/* Autoconf management. */
Index: src/sys/dev/usb/usbnet.h
diff -u src/sys/dev/usb/usbnet.h:1.25 src/sys/dev/usb/usbnet.h:1.26
--- src/sys/dev/usb/usbnet.h:1.25 Thu Mar 3 05:52:11 2022
+++ src/sys/dev/usb/usbnet.h Thu Mar 3 05:52:20 2022
@@ -1,4 +1,4 @@
-/* $NetBSD: usbnet.h,v 1.25 2022/03/03 05:52:11 riastradh Exp $ */
+/* $NetBSD: usbnet.h,v 1.26 2022/03/03 05:52:20 riastradh Exp $ */
/*
* Copyright (c) 2019 Matthew R. Green
@@ -311,24 +311,6 @@ usbnet_isowned_core(struct usbnet *un)
KASSERT(mutex_owned(usbnet_mutex_core(un)));
}
-void usbnet_lock_rx(struct usbnet *);
-void usbnet_unlock_rx(struct usbnet *);
-kmutex_t *usbnet_mutex_rx(struct usbnet *);
-static __inline__ void
-usbnet_isowned_rx(struct usbnet *un)
-{
- KASSERT(mutex_owned(usbnet_mutex_rx(un)));
-}
-
-void usbnet_lock_tx(struct usbnet *);
-void usbnet_unlock_tx(struct usbnet *);
-kmutex_t *usbnet_mutex_tx(struct usbnet *);
-static __inline__ void
-usbnet_isowned_tx(struct usbnet *un)
-{
- KASSERT(mutex_owned(usbnet_mutex_tx(un)));
-}
-
/*
* Endpoint / rx/tx chain management:
*
