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path: root/drivers/s390/cio/device_pgid.c
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Diffstat (limited to 'drivers/s390/cio/device_pgid.c')
-rw-r--r--drivers/s390/cio/device_pgid.c56
1 files changed, 38 insertions, 18 deletions
diff --git a/drivers/s390/cio/device_pgid.c b/drivers/s390/cio/device_pgid.c
index 0adac8a6733..052832d03d3 100644
--- a/drivers/s390/cio/device_pgid.c
+++ b/drivers/s390/cio/device_pgid.c
@@ -22,6 +22,7 @@
#include "cio_debug.h"
#include "css.h"
#include "device.h"
+#include "ioasm.h"
/*
* Start Sense Path Group ID helper function. Used in ccw_device_recog
@@ -56,10 +57,10 @@ __ccw_device_sense_pgid_start(struct ccw_device *cdev)
if (ret != -EACCES)
return ret;
CIO_MSG_EVENT(2, "SNID - Device %04x on Subchannel "
- "%04x, lpm %02X, became 'not "
+ "0.%x.%04x, lpm %02X, became 'not "
"operational'\n",
- cdev->private->devno, sch->irq,
- cdev->private->imask);
+ cdev->private->devno, sch->schid.ssid,
+ sch->schid.sch_no, cdev->private->imask);
}
cdev->private->imask >>= 1;
@@ -105,10 +106,10 @@ __ccw_device_check_sense_pgid(struct ccw_device *cdev)
return -EOPNOTSUPP;
}
if (irb->esw.esw0.erw.cons) {
- CIO_MSG_EVENT(2, "SNID - device %04x, unit check, "
+ CIO_MSG_EVENT(2, "SNID - device 0.%x.%04x, unit check, "
"lpum %02X, cnt %02d, sns : "
"%02X%02X%02X%02X %02X%02X%02X%02X ...\n",
- cdev->private->devno,
+ cdev->private->ssid, cdev->private->devno,
irb->esw.esw0.sublog.lpum,
irb->esw.esw0.erw.scnt,
irb->ecw[0], irb->ecw[1],
@@ -118,15 +119,17 @@ __ccw_device_check_sense_pgid(struct ccw_device *cdev)
return -EAGAIN;
}
if (irb->scsw.cc == 3) {
- CIO_MSG_EVENT(2, "SNID - Device %04x on Subchannel "
- "%04x, lpm %02X, became 'not operational'\n",
- cdev->private->devno, sch->irq, sch->orb.lpm);
+ CIO_MSG_EVENT(2, "SNID - Device %04x on Subchannel 0.%x.%04x,"
+ " lpm %02X, became 'not operational'\n",
+ cdev->private->devno, sch->schid.ssid,
+ sch->schid.sch_no, sch->orb.lpm);
return -EACCES;
}
if (cdev->private->pgid.inf.ps.state2 == SNID_STATE2_RESVD_ELSE) {
- CIO_MSG_EVENT(2, "SNID - Device %04x on Subchannel %04x "
+ CIO_MSG_EVENT(2, "SNID - Device %04x on Subchannel 0.%x.%04x "
"is reserved by someone else\n",
- cdev->private->devno, sch->irq);
+ cdev->private->devno, sch->schid.ssid,
+ sch->schid.sch_no);
return -EUSERS;
}
return 0;
@@ -162,7 +165,7 @@ ccw_device_sense_pgid_irq(struct ccw_device *cdev, enum dev_event dev_event)
/* 0, -ETIME, -EOPNOTSUPP, -EAGAIN, -EACCES or -EUSERS */
case 0: /* Sense Path Group ID successful. */
if (cdev->private->pgid.inf.ps.state1 == SNID_STATE1_RESET)
- memcpy(&cdev->private->pgid, &global_pgid,
+ memcpy(&cdev->private->pgid, &css[0]->global_pgid,
sizeof(struct pgid));
ccw_device_sense_pgid_done(cdev, 0);
break;
@@ -235,8 +238,9 @@ __ccw_device_do_pgid(struct ccw_device *cdev, __u8 func)
sch->lpm &= ~cdev->private->imask;
sch->vpm &= ~cdev->private->imask;
CIO_MSG_EVENT(2, "SPID - Device %04x on Subchannel "
- "%04x, lpm %02X, became 'not operational'\n",
- cdev->private->devno, sch->irq, cdev->private->imask);
+ "0.%x.%04x, lpm %02X, became 'not operational'\n",
+ cdev->private->devno, sch->schid.ssid,
+ sch->schid.sch_no, cdev->private->imask);
return ret;
}
@@ -258,8 +262,10 @@ __ccw_device_check_pgid(struct ccw_device *cdev)
if (irb->ecw[0] & SNS0_CMD_REJECT)
return -EOPNOTSUPP;
/* Hmm, whatever happened, try again. */
- CIO_MSG_EVENT(2, "SPID - device %04x, unit check, cnt %02d, "
+ CIO_MSG_EVENT(2, "SPID - device 0.%x.%04x, unit check, "
+ "cnt %02d, "
"sns : %02X%02X%02X%02X %02X%02X%02X%02X ...\n",
+ cdev->private->ssid,
cdev->private->devno, irb->esw.esw0.erw.scnt,
irb->ecw[0], irb->ecw[1],
irb->ecw[2], irb->ecw[3],
@@ -268,10 +274,10 @@ __ccw_device_check_pgid(struct ccw_device *cdev)
return -EAGAIN;
}
if (irb->scsw.cc == 3) {
- CIO_MSG_EVENT(2, "SPID - Device %04x on Subchannel "
- "%04x, lpm %02X, became 'not operational'\n",
- cdev->private->devno, sch->irq,
- cdev->private->imask);
+ CIO_MSG_EVENT(2, "SPID - Device %04x on Subchannel 0.%x.%04x,"
+ " lpm %02X, became 'not operational'\n",
+ cdev->private->devno, sch->schid.ssid,
+ sch->schid.sch_no, cdev->private->imask);
return -EACCES;
}
return 0;
@@ -364,8 +370,22 @@ ccw_device_verify_irq(struct ccw_device *cdev, enum dev_event dev_event)
void
ccw_device_verify_start(struct ccw_device *cdev)
{
+ struct subchannel *sch = to_subchannel(cdev->dev.parent);
+
cdev->private->flags.pgid_single = 0;
cdev->private->iretry = 5;
+ /*
+ * Update sch->lpm with current values to catch paths becoming
+ * available again.
+ */
+ if (stsch(sch->schid, &sch->schib)) {
+ ccw_device_verify_done(cdev, -ENODEV);
+ return;
+ }
+ sch->lpm = sch->schib.pmcw.pim &
+ sch->schib.pmcw.pam &
+ sch->schib.pmcw.pom &
+ sch->opm;
__ccw_device_verify_start(cdev);
}