From: Douglas Gilbert Date: Thu, 9 Jun 2011 04:27:07 +0000 (-0400) Subject: ses: requesting a fault indication X-Git-Tag: v3.0.1~60 X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=b9beb51724bebfc198533144e86601f0099c026e;p=karo-tx-linux.git ses: requesting a fault indication commit 2a350cab9daf9a46322d83b091bb05cf54ccf6ab upstream. Noticed that when the sysfs interface of the SCSI SES driver was used to request a fault indication the LED flashed but the buzzer didn't sound. So it was doing what REQUEST IDENT (locate) should do. Changelog: - fix the setting of REQUEST FAULT for the device slot and array device slot elements in the enclosure control diagnostic page - note the potentially defective code that reads the FAULT SENSED and FAULT REQUESTED bits from the enclosure status diagnostic page The attached patch is against git/scsi-misc-2.6 Signed-off-by: Douglas Gilbert Signed-off-by: James Bottomley Signed-off-by: Greg Kroah-Hartman --- diff --git a/drivers/scsi/ses.c b/drivers/scsi/ses.c index eb7a3e85304f..eba183c428cf 100644 --- a/drivers/scsi/ses.c +++ b/drivers/scsi/ses.c @@ -160,6 +160,10 @@ static unsigned char *ses_get_page2_descriptor(struct enclosure_device *edev, return NULL; } +/* For device slot and array device slot elements, byte 3 bit 6 + * is "fault sensed" while byte 3 bit 5 is "fault reqstd". As this + * code stands these bits are shifted 4 positions right so in + * sysfs they will appear as bits 2 and 1 respectively. Strange. */ static void ses_get_fault(struct enclosure_device *edev, struct enclosure_component *ecomp) { @@ -181,7 +185,7 @@ static int ses_set_fault(struct enclosure_device *edev, /* zero is disabled */ break; case ENCLOSURE_SETTING_ENABLED: - desc[2] = 0x02; + desc[3] = 0x20; break; default: /* SES doesn't do the SGPIO blink settings */