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[S390] cio: introduce fcx enabled scsw format

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Extend the scsw data structure to the format required by fcx. Also
provide helper functions for easier access to fields which are present
in both the traditional as well as the modified format.

Signed-off-by: Peter Oberparleiter <peter.oberparleiter@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
This commit is contained in:
Peter Oberparleiter
2008-07-14 09:58:50 +02:00
committed by Heiko Carstens
父節點 4f2bd92e3b
當前提交 23d805b647
共有 31 個文件被更改，包括 1254 次插入 和 288 次删除
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21
drivers/s390/char/tape_3590.c
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@@ -837,13 +837,13 @@ tape_3590_erp_retry(struct tape_device *device, struct tape_request *request,
static int
tape_3590_unsolicited_irq(struct tape_device *device, struct irb *irb)
{
if (irb->scsw.dstat == DEV_STAT_CHN_END)
if (irb->scsw.cmd.dstat == DEV_STAT_CHN_END)
/* Probably result of halt ssch */
return TAPE_IO_PENDING;
else if (irb->scsw.dstat == 0x85)
else if (irb->scsw.cmd.dstat == 0x85)
/* Device Ready */
DBF_EVENT(3, "unsol.irq! tape ready: %08x\n", device->cdev_id);
else if (irb->scsw.dstat & DEV_STAT_ATTENTION) {
else if (irb->scsw.cmd.dstat & DEV_STAT_ATTENTION) {
tape_3590_schedule_work(device, TO_READ_ATTMSG);
} else {
DBF_EVENT(3, "unsol.irq! dev end: %08x\n", device->cdev_id);
@@ -1515,18 +1515,19 @@ tape_3590_irq(struct tape_device *device, struct tape_request *request,
if (request == NULL)
return tape_3590_unsolicited_irq(device, irb);
if ((irb->scsw.dstat & DEV_STAT_UNIT_EXCEP) &&
(irb->scsw.dstat & DEV_STAT_DEV_END) && (request->op == TO_WRI)) {
if ((irb->scsw.cmd.dstat & DEV_STAT_UNIT_EXCEP) &&
(irb->scsw.cmd.dstat & DEV_STAT_DEV_END) &&
(request->op == TO_WRI)) {
/* Write at end of volume */
DBF_EVENT(2, "End of volume\n");
return tape_3590_erp_failed(device, request, irb, -ENOSPC);
}
if (irb->scsw.dstat & DEV_STAT_UNIT_CHECK)
if (irb->scsw.cmd.dstat & DEV_STAT_UNIT_CHECK)
return tape_3590_unit_check(device, request, irb);
if (irb->scsw.dstat & DEV_STAT_DEV_END) {
if (irb->scsw.dstat == DEV_STAT_UNIT_EXCEP) {
if (irb->scsw.cmd.dstat & DEV_STAT_DEV_END) {
if (irb->scsw.cmd.dstat == DEV_STAT_UNIT_EXCEP) {
if (request->op == TO_FSB || request->op == TO_BSB)
request->rescnt++;
else
@@ -1536,12 +1537,12 @@ tape_3590_irq(struct tape_device *device, struct tape_request *request,
return tape_3590_done(device, request);
}
if (irb->scsw.dstat & DEV_STAT_CHN_END) {
if (irb->scsw.cmd.dstat & DEV_STAT_CHN_END) {
DBF_EVENT(2, "cannel end\n");
return TAPE_IO_PENDING;
}
if (irb->scsw.dstat & DEV_STAT_ATTENTION) {
if (irb->scsw.cmd.dstat & DEV_STAT_ATTENTION) {
DBF_EVENT(2, "Unit Attention when busy..\n");
return TAPE_IO_PENDING;
}