From: James Bottomley Date: Fri, 22 Feb 2008 23:01:59 +0000 (-0600) Subject: [SCSI] aic94xx: fix sequencer hang on error recovery X-Git-Tag: v2.6.25-rc3~69^2~4 X-Git-Url: https://git.openpandora.org/cgi-bin/gitweb.cgi?p=pandora-kernel.git;a=commitdiff_plain;h=91b550604480eadcdadc7db8a7d19f496ccad6bd [SCSI] aic94xx: fix sequencer hang on error recovery The clear nexus I_T and clear nexus I_T_L functions in the aic94xx specify the SUSPEND_TX flag which causes the sequencer to be suspended until it receives a RESUME_TX. Unfortunately, nothing ever sends the resume, so the sequencer on the link is stopped forever, leading to eventual timeouts and I/O errors. Since clear nexus commands are only executed as part of error recovery, it's perfectly fine to keep the sequencer running on the link ... as soon as the recovery function is completed, we'll send it the commands to retry. Signed-off-by: James Bottomley --- diff --git a/drivers/scsi/aic94xx/aic94xx_tmf.c b/drivers/scsi/aic94xx/aic94xx_tmf.c index b52124f3d3ac..144f5ad20453 100644 --- a/drivers/scsi/aic94xx/aic94xx_tmf.c +++ b/drivers/scsi/aic94xx/aic94xx_tmf.c @@ -151,8 +151,6 @@ static int asd_clear_nexus_I_T(struct domain_device *dev) CLEAR_NEXUS_PRE; scb->clear_nexus.nexus = NEXUS_I_T; scb->clear_nexus.flags = SEND_Q | EXEC_Q | NOTINQ; - if (dev->tproto) - scb->clear_nexus.flags |= SUSPEND_TX; scb->clear_nexus.conn_handle = cpu_to_le16((u16)(unsigned long) dev->lldd_dev); CLEAR_NEXUS_POST; @@ -169,8 +167,6 @@ static int asd_clear_nexus_I_T_L(struct domain_device *dev, u8 *lun) CLEAR_NEXUS_PRE; scb->clear_nexus.nexus = NEXUS_I_T_L; scb->clear_nexus.flags = SEND_Q | EXEC_Q | NOTINQ; - if (dev->tproto) - scb->clear_nexus.flags |= SUSPEND_TX; memcpy(scb->clear_nexus.ssp_task.lun, lun, 8); scb->clear_nexus.conn_handle = cpu_to_le16((u16)(unsigned long) dev->lldd_dev);