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authorLinus Torvalds <torvalds@linux-foundation.org>2009-10-14 15:36:19 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2009-10-14 15:36:19 -0700
commita3ccf63ee643ef243cbf8918da8b3f9238f10029 (patch)
tree569049e38e9b420a8c0e50a84d2579e176ca29de
parentd6047d79b90f6122fcbf2c3e783b507f7dd78fc6 (diff)
parenteaf76e0d027a917a013ad8a88a94132d0feab622 (diff)
downloadlinux-sh-a3ccf63ee643ef243cbf8918da8b3f9238f10029.tar.gz
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ieee1394/linux1394-2.6
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ieee1394/linux1394-2.6: firewire: sbp2: provide fallback if mgt_ORB_timeout is missing ieee1394: add documentation entry to MAINTAINERS ieee1394: update URLs in debugging-via-ohci1394.txt
-rw-r--r--Documentation/debugging-via-ohci1394.txt8
-rw-r--r--MAINTAINERS1
-rw-r--r--drivers/firewire/sbp2.c39
3 files changed, 24 insertions, 24 deletions
diff --git a/Documentation/debugging-via-ohci1394.txt b/Documentation/debugging-via-ohci1394.txt
index 59a91e5c6909..611f5a5499b1 100644
--- a/Documentation/debugging-via-ohci1394.txt
+++ b/Documentation/debugging-via-ohci1394.txt
@@ -64,14 +64,14 @@ be used to view the printk buffer of a remote machine, even with live update.
Bernhard Kaindl enhanced firescope to support accessing 64-bit machines
from 32-bit firescope and vice versa:
-- ftp://ftp.suse.de/private/bk/firewire/tools/firescope-0.2.2.tar.bz2
+- http://halobates.de/firewire/firescope-0.2.2.tar.bz2
and he implemented fast system dump (alpha version - read README.txt):
-- ftp://ftp.suse.de/private/bk/firewire/tools/firedump-0.1.tar.bz2
+- http://halobates.de/firewire/firedump-0.1.tar.bz2
There is also a gdb proxy for firewire which allows to use gdb to access
data which can be referenced from symbols found by gdb in vmlinux:
-- ftp://ftp.suse.de/private/bk/firewire/tools/fireproxy-0.33.tar.bz2
+- http://halobates.de/firewire/fireproxy-0.33.tar.bz2
The latest version of this gdb proxy (fireproxy-0.34) can communicate (not
yet stable) with kgdb over an memory-based communication module (kgdbom).
@@ -178,7 +178,7 @@ Step-by-step instructions for using firescope with early OHCI initialization:
Notes
-----
-Documentation and specifications: ftp://ftp.suse.de/private/bk/firewire/docs
+Documentation and specifications: http://halobates.de/firewire/
FireWire is a trademark of Apple Inc. - for more information please refer to:
http://en.wikipedia.org/wiki/FireWire
diff --git a/MAINTAINERS b/MAINTAINERS
index 6b057778477d..d5eb8c13ef05 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -2615,6 +2615,7 @@ L: linux1394-devel@lists.sourceforge.net
W: http://www.linux1394.org/
T: git git://git.kernel.org/pub/scm/linux/kernel/git/ieee1394/linux1394-2.6.git
S: Maintained
+F: Documentation/debugging-via-ohci1394.txt
F: drivers/ieee1394/
IEEE 1394 RAW I/O DRIVER
diff --git a/drivers/firewire/sbp2.c b/drivers/firewire/sbp2.c
index 50f0176de615..98dbbda3ad41 100644
--- a/drivers/firewire/sbp2.c
+++ b/drivers/firewire/sbp2.c
@@ -188,14 +188,7 @@ static struct fw_device *target_device(struct sbp2_target *tgt)
/* Impossible login_id, to detect logout attempt before successful login */
#define INVALID_LOGIN_ID 0x10000
-/*
- * Per section 7.4.8 of the SBP-2 spec, a mgt_ORB_timeout value can be
- * provided in the config rom. Most devices do provide a value, which
- * we'll use for login management orbs, but with some sane limits.
- */
-#define SBP2_MIN_LOGIN_ORB_TIMEOUT 5000U /* Timeout in ms */
-#define SBP2_MAX_LOGIN_ORB_TIMEOUT 40000U /* Timeout in ms */
-#define SBP2_ORB_TIMEOUT 2000U /* Timeout in ms */
+#define SBP2_ORB_TIMEOUT 2000U /* Timeout in ms */
#define SBP2_ORB_NULL 0x80000000
#define SBP2_RETRY_LIMIT 0xf /* 15 retries */
#define SBP2_CYCLE_LIMIT (0xc8 << 12) /* 200 125us cycles */
@@ -1034,7 +1027,6 @@ static int sbp2_scan_unit_dir(struct sbp2_target *tgt, u32 *directory,
{
struct fw_csr_iterator ci;
int key, value;
- unsigned int timeout;
fw_csr_iterator_init(&ci, directory);
while (fw_csr_iterator_next(&ci, &key, &value)) {
@@ -1059,17 +1051,7 @@ static int sbp2_scan_unit_dir(struct sbp2_target *tgt, u32 *directory,
case SBP2_CSR_UNIT_CHARACTERISTICS:
/* the timeout value is stored in 500ms units */
- timeout = ((unsigned int) value >> 8 & 0xff) * 500;
- timeout = max(timeout, SBP2_MIN_LOGIN_ORB_TIMEOUT);
- tgt->mgt_orb_timeout =
- min(timeout, SBP2_MAX_LOGIN_ORB_TIMEOUT);
-
- if (timeout > tgt->mgt_orb_timeout)
- fw_notify("%s: config rom contains %ds "
- "management ORB timeout, limiting "
- "to %ds\n", tgt->bus_id,
- timeout / 1000,
- tgt->mgt_orb_timeout / 1000);
+ tgt->mgt_orb_timeout = (value >> 8 & 0xff) * 500;
break;
case SBP2_CSR_LOGICAL_UNIT_NUMBER:
@@ -1087,6 +1069,22 @@ static int sbp2_scan_unit_dir(struct sbp2_target *tgt, u32 *directory,
return 0;
}
+/*
+ * Per section 7.4.8 of the SBP-2 spec, a mgt_ORB_timeout value can be
+ * provided in the config rom. Most devices do provide a value, which
+ * we'll use for login management orbs, but with some sane limits.
+ */
+static void sbp2_clamp_management_orb_timeout(struct sbp2_target *tgt)
+{
+ unsigned int timeout = tgt->mgt_orb_timeout;
+
+ if (timeout > 40000)
+ fw_notify("%s: %ds mgt_ORB_timeout limited to 40s\n",
+ tgt->bus_id, timeout / 1000);
+
+ tgt->mgt_orb_timeout = clamp_val(timeout, 5000, 40000);
+}
+
static void sbp2_init_workarounds(struct sbp2_target *tgt, u32 model,
u32 firmware_revision)
{
@@ -1171,6 +1169,7 @@ static int sbp2_probe(struct device *dev)
&firmware_revision) < 0)
goto fail_tgt_put;
+ sbp2_clamp_management_orb_timeout(tgt);
sbp2_init_workarounds(tgt, model, firmware_revision);
/*