* Status accumulation and basic sense functions.
*/
-#include <linux/config.h>
#include <linux/module.h>
#include <linux/init.h>
* Check for any kind of channel or interface control check but don't
* issue the message for the console device
*/
-static inline void
+static void
ccw_device_msg_control_check(struct ccw_device *cdev, struct irb *irb)
{
if (!(irb->scsw.cstat & (SCHN_STAT_CHN_DATA_CHK |
SCHN_STAT_CHN_CTRL_CHK |
SCHN_STAT_INTF_CTRL_CHK)))
return;
-
CIO_MSG_EVENT(0, "Channel-Check or Interface-Control-Check "
"received"
" ... device %04x on subchannel 0.%x.%04x, dev_stat "
": %02X sch_stat : %02X\n",
- cdev->private->devno, cdev->private->ssid,
- cdev->private->sch_no,
+ cdev->private->dev_id.devno, cdev->private->schid.ssid,
+ cdev->private->schid.sch_no,
irb->scsw.dstat, irb->scsw.cstat);
if (irb->scsw.cc != 3) {
char dbf_text[15];
- sprintf(dbf_text, "chk%x", cdev->private->sch_no);
+ sprintf(dbf_text, "chk%x", cdev->private->schid.sch_no);
CIO_TRACE_EVENT(0, dbf_text);
CIO_HEX_EVENT(0, irb, sizeof (struct irb));
}
sch->schib.pmcw.pnom);
sch->lpm &= ~sch->schib.pmcw.pnom;
- if (cdev->private->options.pgroup)
- cdev->private->flags.doverify = 1;
+ cdev->private->flags.doverify = 1;
}
/*
* Copy valid bits from the extended control word to device irb.
*/
-static inline void
+static void
ccw_device_accumulate_ecw(struct ccw_device *cdev, struct irb *irb)
{
/*
/*
* Check if extended status word is valid.
*/
-static inline int
+static int
ccw_device_accumulate_esw_valid(struct irb *irb)
{
if (!irb->scsw.eswf && irb->scsw.stctl == SCSW_STCTL_STATUS_PEND)
/*
* Copy valid bits from the extended status word to device irb.
*/
-static inline void
+static void
ccw_device_accumulate_esw(struct ccw_device *cdev, struct irb *irb)
{
struct irb *cdev_irb;
cdev_irb->esw.esw0.erw.auth = irb->esw.esw0.erw.auth;
/* Copy path verification required flag. */
cdev_irb->esw.esw0.erw.pvrf = irb->esw.esw0.erw.pvrf;
- if (irb->esw.esw0.erw.pvrf && cdev->private->options.pgroup)
+ if (irb->esw.esw0.erw.pvrf)
cdev->private->flags.doverify = 1;
/* Copy concurrent sense bit. */
cdev_irb->esw.esw0.erw.cons = irb->esw.esw0.erw.cons;
cdev_irb = &cdev->private->irb;
+ /*
+ * If the clear function had been performed, all formerly pending
+ * status at the subchannel has been cleared and we must not pass
+ * intermediate accumulated status to the device driver.
+ */
+ if (irb->scsw.fctl & SCSW_FCTL_CLEAR_FUNC)
+ memset(&cdev->private->irb, 0, sizeof(struct irb));
+
/* Copy bits which are valid only for the start function. */
if (irb->scsw.fctl & SCSW_FCTL_START_FUNC) {
/* Copy key. */
cdev_irb->scsw.cpa = irb->scsw.cpa;
/* Accumulate device status, but not the device busy flag. */
cdev_irb->scsw.dstat &= ~DEV_STAT_BUSY;
- cdev_irb->scsw.dstat |= irb->scsw.dstat;
+ /* dstat is not always valid. */
+ if (irb->scsw.stctl &
+ (SCSW_STCTL_PRIM_STATUS | SCSW_STCTL_SEC_STATUS
+ | SCSW_STCTL_INTER_STATUS | SCSW_STCTL_ALERT_STATUS))
+ cdev_irb->scsw.dstat |= irb->scsw.dstat;
/* Accumulate subchannel status. */
cdev_irb->scsw.cstat |= irb->scsw.cstat;
/* Copy residual count if it is valid. */
/*
* We have ending status but no sense information. Do a basic sense.
*/
- sch = to_subchannel(cdev->dev.parent);
sch->sense_ccw.cmd_code = CCW_CMD_BASIC_SENSE;
sch->sense_ccw.cda = (__u32) __pa(cdev->private->irb.ecw);
sch->sense_ccw.count = SENSE_MAX_COUNT;
sch->sense_ccw.flags = CCW_FLAG_SLI;
+ /* Reset internal retry indication. */
+ cdev->private->flags.intretry = 0;
+
return cio_start (sch, &sch->sense_ccw, 0xff);
}
}
/* Check if path verification is required. */
if (ccw_device_accumulate_esw_valid(irb) &&
- irb->esw.esw0.erw.pvrf && cdev->private->options.pgroup)
+ irb->esw.esw0.erw.pvrf)
cdev->private->flags.doverify = 1;
}