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authorStefan Richter <stefanr@s5r6.in-berlin.de>2008-05-11 00:35:55 +0200
committerStefan Richter <stefanr@s5r6.in-berlin.de>2008-07-14 13:00:18 +0200
commit3719122a520af2957031859317e74858ab4d3f4b (patch)
treea9116fbe4e7046f6a5c743390b41381da2699740 /drivers/ieee1394
parentffcaade3109c3a4c0a2c601cf2a44d55b4c3af37 (diff)
downloadop-kernel-dev-3719122a520af2957031859317e74858ab4d3f4b.zip
op-kernel-dev-3719122a520af2957031859317e74858ab4d3f4b.tar.gz
ieee1394: sbp2: fix spindown for PL-3507 and TSB42AA9 firmwares
Reported by Tino Keitel: PL-3507 with firmware from Prolific does not spin down the disk on START STOP UNIT with power condition = 0 and start = 0. It does however work with power condition = 2 or 3. Also found while investigating this: DViCO Momobay CX-1 and FX-3A (TI TSB42AA9/A based) become unresponsive after START STOP UNIT with power condition = 0 and start = 0. They stay responsive if power condition is set when stopping the motor. Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
Diffstat (limited to 'drivers/ieee1394')
-rw-r--r--drivers/ieee1394/sbp2.c20
-rw-r--r--drivers/ieee1394/sbp2.h1
2 files changed, 19 insertions, 2 deletions
diff --git a/drivers/ieee1394/sbp2.c b/drivers/ieee1394/sbp2.c
index a5ceff2..219164d 100644
--- a/drivers/ieee1394/sbp2.c
+++ b/drivers/ieee1394/sbp2.c
@@ -186,6 +186,11 @@ MODULE_PARM_DESC(exclusive_login, "Exclusive login to sbp2 device "
* - delay inquiry
* Wait extra SBP2_INQUIRY_DELAY seconds after login before SCSI inquiry.
*
+ * - power condition
+ * Set the power condition field in the START STOP UNIT commands sent by
+ * sd_mod on suspend, resume, and shutdown (if manage_start_stop is on).
+ * Some disks need this to spin down or to resume properly.
+ *
* - override internal blacklist
* Instead of adding to the built-in blacklist, use only the workarounds
* specified in the module load parameter.
@@ -199,6 +204,8 @@ MODULE_PARM_DESC(workarounds, "Work around device bugs (default = 0"
", skip mode page 8 = " __stringify(SBP2_WORKAROUND_MODE_SENSE_8)
", fix capacity = " __stringify(SBP2_WORKAROUND_FIX_CAPACITY)
", delay inquiry = " __stringify(SBP2_WORKAROUND_DELAY_INQUIRY)
+ ", set power condition in start stop unit = "
+ __stringify(SBP2_WORKAROUND_POWER_CONDITION)
", override internal blacklist = " __stringify(SBP2_WORKAROUND_OVERRIDE)
", or a combination)");
@@ -359,18 +366,25 @@ static const struct {
.firmware_revision = 0x002800,
.model_id = 0x001010,
.workarounds = SBP2_WORKAROUND_INQUIRY_36 |
- SBP2_WORKAROUND_MODE_SENSE_8,
+ SBP2_WORKAROUND_MODE_SENSE_8 |
+ SBP2_WORKAROUND_POWER_CONDITION,
},
/* DViCO Momobay FX-3A with TSB42AA9A bridge */ {
.firmware_revision = 0x002800,
.model_id = 0x000000,
- .workarounds = SBP2_WORKAROUND_DELAY_INQUIRY,
+ .workarounds = SBP2_WORKAROUND_DELAY_INQUIRY |
+ SBP2_WORKAROUND_POWER_CONDITION,
},
/* Initio bridges, actually only needed for some older ones */ {
.firmware_revision = 0x000200,
.model_id = SBP2_ROM_VALUE_WILDCARD,
.workarounds = SBP2_WORKAROUND_INQUIRY_36,
},
+ /* PL-3507 bridge with Prolific firmware */ {
+ .firmware_revision = 0x012800,
+ .model_id = SBP2_ROM_VALUE_WILDCARD,
+ .workarounds = SBP2_WORKAROUND_POWER_CONDITION,
+ },
/* Symbios bridge */ {
.firmware_revision = 0xa0b800,
.model_id = SBP2_ROM_VALUE_WILDCARD,
@@ -2002,6 +2016,8 @@ static int sbp2scsi_slave_configure(struct scsi_device *sdev)
sdev->skip_ms_page_8 = 1;
if (lu->workarounds & SBP2_WORKAROUND_FIX_CAPACITY)
sdev->fix_capacity = 1;
+ if (lu->workarounds & SBP2_WORKAROUND_POWER_CONDITION)
+ sdev->start_stop_pwr_cond = 1;
if (lu->workarounds & SBP2_WORKAROUND_128K_MAX_TRANS)
blk_queue_max_sectors(sdev->request_queue, 128 * 1024 / 512);
return 0;
diff --git a/drivers/ieee1394/sbp2.h b/drivers/ieee1394/sbp2.h
index 80d8e09..875428b 100644
--- a/drivers/ieee1394/sbp2.h
+++ b/drivers/ieee1394/sbp2.h
@@ -345,6 +345,7 @@ enum sbp2lu_state_types {
#define SBP2_WORKAROUND_FIX_CAPACITY 0x8
#define SBP2_WORKAROUND_DELAY_INQUIRY 0x10
#define SBP2_INQUIRY_DELAY 12
+#define SBP2_WORKAROUND_POWER_CONDITION 0x20
#define SBP2_WORKAROUND_OVERRIDE 0x100
#endif /* SBP2_H */
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