Module Name: src
Committed By: sborrill
Date: Fri Feb 21 10:41:06 UTC 2014
Modified Files:
src/sys/dev/usb [netbsd-6]: umass.c umassvar.h usb_mem.c
Log Message:
Pull up the following revisions(s) (requested by mlelstv in ticket #1032):
sys/dev/usb/umass.c: revision 1.148
sys/dev/usb/umassvar.h: revision 1.35
sys/dev/usb/usb_mem.c: revision 1.64
Fix problem where umass might allocate buffers in interrupt context which
causes it to fail or a DIAGNOSTIC kernel to panic.
To generate a diff of this commit:
cvs rdiff -u -r1.141 -r1.141.10.1 src/sys/dev/usb/umass.c
cvs rdiff -u -r1.31 -r1.31.10.1 src/sys/dev/usb/umassvar.h
cvs rdiff -u -r1.51 -r1.51.2.1 src/sys/dev/usb/usb_mem.c
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/umass.c
diff -u src/sys/dev/usb/umass.c:1.141 src/sys/dev/usb/umass.c:1.141.10.1
--- src/sys/dev/usb/umass.c:1.141 Wed Aug 24 11:28:50 2011
+++ src/sys/dev/usb/umass.c Fri Feb 21 10:41:06 2014
@@ -1,4 +1,4 @@
-/* $NetBSD: umass.c,v 1.141 2011/08/24 11:28:50 mbalmer Exp $ */
+/* $NetBSD: umass.c,v 1.141.10.1 2014/02/21 10:41:06 sborrill Exp $ */
/*
* Copyright (c) 2003 The NetBSD Foundation, Inc.
@@ -124,7 +124,7 @@
*/
#include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: umass.c,v 1.141 2011/08/24 11:28:50 mbalmer Exp $");
+__KERNEL_RCSID(0, "$NetBSD: umass.c,v 1.141.10.1 2014/02/21 10:41:06 sborrill Exp $");
#ifdef _KERNEL_OPT
#include "opt_umass.h"
@@ -310,7 +310,7 @@ umass_attach(device_t parent, device_t s
const char *sWire, *sCommand;
char *devinfop;
usbd_status err;
- int i, bno, error;
+ int i, error;
sc->sc_dev = self;
@@ -563,29 +563,54 @@ umass_attach(device_t parent, device_t s
return;
}
}
- /* Allocate buffer for data transfer (it's huge). */
+ /* Allocate buffer for data transfer (it's huge), command and
+ status data here as auto allocation cannot happen in interrupt
+ context */
switch (sc->sc_wire) {
case UMASS_WPROTO_BBB:
- bno = XFER_BBB_DATA;
- goto dalloc;
+ sc->data_buffer = usbd_alloc_buffer(
+ sc->transfer_xfer[XFER_BBB_DATA],
+ UMASS_MAX_TRANSFER_SIZE);
+ sc->cmd_buffer = usbd_alloc_buffer(
+ sc->transfer_xfer[XFER_BBB_CBW],
+ UMASS_BBB_CBW_SIZE);
+ sc->s1_buffer = usbd_alloc_buffer(
+ sc->transfer_xfer[XFER_BBB_CSW1],
+ UMASS_BBB_CSW_SIZE);
+ sc->s2_buffer = usbd_alloc_buffer(
+ sc->transfer_xfer[XFER_BBB_CSW2],
+ UMASS_BBB_CSW_SIZE);
+ break;
case UMASS_WPROTO_CBI:
- bno = XFER_CBI_DATA;
- goto dalloc;
case UMASS_WPROTO_CBI_I:
- bno = XFER_CBI_DATA;
- dalloc:
- sc->data_buffer = usbd_alloc_buffer(sc->transfer_xfer[bno],
- UMASS_MAX_TRANSFER_SIZE);
- if (sc->data_buffer == NULL) {
- aprint_error_dev(self, "no buffer memory\n");
- umass_disco(sc);
- return;
- }
+ sc->data_buffer = usbd_alloc_buffer(
+ sc->transfer_xfer[XFER_CBI_DATA],
+ UMASS_MAX_TRANSFER_SIZE);
+ sc->cmd_buffer = usbd_alloc_buffer(
+ sc->transfer_xfer[XFER_CBI_CB],
+ sizeof(sc->cbl));
+ sc->s1_buffer = usbd_alloc_buffer(
+ sc->transfer_xfer[XFER_CBI_STATUS],
+ sizeof(sc->sbl));
+ sc->s2_buffer = usbd_alloc_buffer(
+ sc->transfer_xfer[XFER_CBI_RESET1],
+ sizeof(sc->cbl));
break;
default:
break;
}
+ if (sc->data_buffer == NULL || sc->cmd_buffer == NULL
+ || sc->s1_buffer == NULL || sc->s2_buffer == NULL) {
+ /*
+ * partially preallocated buffers are freed with
+ * the xfer structures
+ */
+ aprint_error_dev(self, "no buffer memory\n");
+ umass_disco(sc);
+ return;
+ }
+
/* Initialise the wire protocol specific methods */
switch (sc->sc_wire) {
case UMASS_WPROTO_BBB:
Index: src/sys/dev/usb/umassvar.h
diff -u src/sys/dev/usb/umassvar.h:1.31 src/sys/dev/usb/umassvar.h:1.31.10.1
--- src/sys/dev/usb/umassvar.h:1.31 Sun Jul 31 16:32:02 2011
+++ src/sys/dev/usb/umassvar.h Fri Feb 21 10:41:06 2014
@@ -1,4 +1,4 @@
-/* $NetBSD: umassvar.h,v 1.31 2011/07/31 16:32:02 jakllsch Exp $ */
+/* $NetBSD: umassvar.h,v 1.31.10.1 2014/02/21 10:41:06 sborrill Exp $ */
/*-
* Copyright (c) 1999 MAEKAWA Masahide <bis...@rr.iij4u.or.jp>,
* Nick Hibma <n_hi...@freebsd.org>
@@ -223,6 +223,9 @@ struct umass_softc {
usbd_xfer_handle transfer_xfer[XFER_NR]; /* for ctrl xfers */
void *data_buffer;
+ void *cmd_buffer;
+ void *s1_buffer;
+ void *s2_buffer;
int transfer_dir; /* data direction */
void *transfer_data; /* data buffer */
Index: src/sys/dev/usb/usb_mem.c
diff -u src/sys/dev/usb/usb_mem.c:1.51 src/sys/dev/usb/usb_mem.c:1.51.2.1
--- src/sys/dev/usb/usb_mem.c:1.51 Fri Jan 27 18:53:09 2012
+++ src/sys/dev/usb/usb_mem.c Fri Feb 21 10:41:06 2014
@@ -1,4 +1,4 @@
-/* $NetBSD: usb_mem.c,v 1.51 2012/01/27 18:53:09 para Exp $ */
+/* $NetBSD: usb_mem.c,v 1.51.2.1 2014/02/21 10:41:06 sborrill Exp $ */
/*
* Copyright (c) 1998 The NetBSD Foundation, Inc.
@@ -38,7 +38,7 @@
*/
#include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: usb_mem.c,v 1.51 2012/01/27 18:53:09 para Exp $");
+__KERNEL_RCSID(0, "$NetBSD: usb_mem.c,v 1.51.2.1 2014/02/21 10:41:06 sborrill Exp $");
#ifdef _KERNEL_OPT
#include "opt_usb.h"
@@ -115,7 +115,7 @@ usb_block_allocmem(bus_dma_tag_t tag, si
DPRINTFN(5, ("usb_block_allocmem: size=%zu align=%zu\n", size, align));
#ifdef DIAGNOSTIC
- if (cpu_intr_p()) {
+ if (cpu_softintr_p() || cpu_intr_p()) {
printf("usb_block_allocmem: in interrupt context, size=%lu\n",
(unsigned long) size);
}
@@ -137,7 +137,7 @@ usb_block_allocmem(bus_dma_tag_t tag, si
splx(s);
#ifdef DIAGNOSTIC
- if (cpu_intr_p()) {
+ if (cpu_softintr_p() || cpu_intr_p()) {
printf("usb_block_allocmem: in interrupt context, failed\n");
return (USBD_NOMEM);
}
@@ -194,7 +194,7 @@ void
usb_block_real_freemem(usb_dma_block_t *b)
{
#ifdef DIAGNOSTIC
- if (cpu_intr_p()) {
+ if (cpu_softintr_p() || cpu_intr_p()) {
printf("usb_block_real_freemem: in interrupt context\n");
return;
}
