#include "css.h"
#include "device.h"
#include "ioasm.h"
+#include "io_sch.h"
/*
* Helper function called from interrupt context to decide whether an
ccw->cda = (__u32) __pa (&cdev->private->pgid[i]);
if (cdev->private->iretry > 0) {
cdev->private->iretry--;
+ /* Reset internal retry indication. */
+ cdev->private->flags.intretry = 0;
ret = cio_start (sch, cdev->private->iccws,
cdev->private->imask);
/* ret is 0, -EBUSY, -EACCES or -ENODEV */
sch = to_subchannel(cdev->dev.parent);
irb = &cdev->private->irb;
- if (irb->scsw.fctl & (SCSW_FCTL_HALT_FUNC | SCSW_FCTL_CLEAR_FUNC))
+ if (irb->scsw.fctl & (SCSW_FCTL_HALT_FUNC | SCSW_FCTL_CLEAR_FUNC)) {
+ /* Retry Sense PGID if requested. */
+ if (cdev->private->flags.intretry) {
+ cdev->private->flags.intretry = 0;
+ return -EAGAIN;
+ }
return -ETIME;
+ }
if (irb->esw.esw0.erw.cons &&
(irb->ecw[0]&(SNS0_CMD_REJECT|SNS0_INTERVENTION_REQ))) {
/*
return -EAGAIN;
}
if (irb->scsw.cc == 3) {
+ u8 lpm;
+
+ lpm = to_io_private(sch)->orb.lpm;
CIO_MSG_EVENT(2, "SNID - Device %04x on Subchannel 0.%x.%04x,"
" lpm %02X, became 'not operational'\n",
cdev->private->dev_id.devno, sch->schid.ssid,
- sch->schid.sch_no, sch->orb.lpm);
+ sch->schid.sch_no, lpm);
return -EACCES;
}
i = 8 - ffs(cdev->private->imask);
ret = -EACCES;
if (cdev->private->iretry > 0) {
cdev->private->iretry--;
+ /* Reset internal retry indication. */
+ cdev->private->flags.intretry = 0;
ret = cio_start (sch, cdev->private->iccws,
cdev->private->imask);
/* We expect an interrupt in case of success or busy
ret = -EACCES;
if (cdev->private->iretry > 0) {
cdev->private->iretry--;
+ /* Reset internal retry indication. */
+ cdev->private->flags.intretry = 0;
ret = cio_start (sch, cdev->private->iccws,
cdev->private->imask);
/* We expect an interrupt in case of success or busy
sch = to_subchannel(cdev->dev.parent);
irb = &cdev->private->irb;
- if (irb->scsw.fctl & (SCSW_FCTL_HALT_FUNC | SCSW_FCTL_CLEAR_FUNC))
+ if (irb->scsw.fctl & (SCSW_FCTL_HALT_FUNC | SCSW_FCTL_CLEAR_FUNC)) {
+ /* Retry Set PGID if requested. */
+ if (cdev->private->flags.intretry) {
+ cdev->private->flags.intretry = 0;
+ return -EAGAIN;
+ }
return -ETIME;
+ }
if (irb->esw.esw0.erw.cons) {
if (irb->ecw[0] & SNS0_CMD_REJECT)
return -EOPNOTSUPP;
sch = to_subchannel(cdev->dev.parent);
irb = &cdev->private->irb;
- if (irb->scsw.fctl & (SCSW_FCTL_HALT_FUNC | SCSW_FCTL_CLEAR_FUNC))
+ if (irb->scsw.fctl & (SCSW_FCTL_HALT_FUNC | SCSW_FCTL_CLEAR_FUNC)) {
+ /* Retry NOP if requested. */
+ if (cdev->private->flags.intretry) {
+ cdev->private->flags.intretry = 0;
+ return -EAGAIN;
+ }
return -ETIME;
+ }
if (irb->scsw.cc == 3) {
CIO_MSG_EVENT(2, "NOP - Device %04x on Subchannel 0.%x.%04x,"
" lpm %02X, became 'not operational'\n",