patch-2.2.16 linux/drivers/s390/block/dasd_erp.c

• Lines: 78
• Date: Wed Jun 7 14:26:43 2000
• Orig file: v2.2.15/linux/drivers/s390/block/dasd_erp.c
• Orig date: Wed Dec 31 16:00:00 1969

diff -urN v2.2.15/linux/drivers/s390/block/dasd_erp.c linux/drivers/s390/block/dasd_erp.c
@@ -0,0 +1,77 @@
+/* 
+ * File...........: linux/drivers/s390/block/dasd_erp.c
+ * Author(s)......: Holger Smolinski <Holger.Smolinski@de.ibm.com>
+ * Bugreports.to..: <Linux390@de.ibm.com>
+ * (C) IBM Corporation, IBM Deutschland Entwicklung GmbH, 2000
+ */
+
+#include <asm/irq.h>
+#include <linux/dasd.h>
+#include "dasd_erp.h"
+
+#define PRINTK_HEADER "dasd_erp"
+
+dasd_era_t
+dasd_erp_examine (cqr_t * cqr, devstat_t * stat)
+{
+	int rc;
+	if (stat->cstat == 0x00 &&
+	    stat->dstat == (DEV_STAT_CHN_END | DEV_STAT_DEV_END)) {
+		PRINT_WARN ("No error detected\n");
+		rc = dasd_era_none;
+	} else if (!(stat->flag & DEVSTAT_FLAG_SENSE_AVAIL)) {
+		PRINT_WARN ("No sense data available, try to recover anyway\n");
+		rc = dasd_era_recover;
+	} else
+#if DASD_PARANOIA > 1
+	if (!dasd_disciplines[dasd_info[cqr->devindex]->type]->
+		 erp_examine) {
+		INTERNAL_CHECK ("No erp_examinator for dt=%d\n",
+				dasd_info[cqr->devindex]->type);
+		rc = dasd_era_fatal;
+	} else
+#endif
+	{
+		PRINT_WARN ("calling examinator\n");
+		rc = dasd_disciplines[dasd_info[cqr->devindex]->type]->
+			erp_examine (cqr, stat);
+	}
+	PRINT_WARN("ERP action code = %d\n",rc);
+	return rc;
+}
+
+void
+default_erp_action (erp_t * erp)
+{
+	cqr_t *cqr = erp->cqr.int4cqr;
+	ccw1_t *cpa = request_cp(1,0);
+
+	memset (cpa,0,sizeof(ccw1_t));
+
+	cpa -> cmd_code = CCW_CMD_NOOP;
+	
+	((cqr_t *) erp)->cpaddr = cpa;
+	if (cqr->retries++ <= 16) {
+		ACS (cqr->status,
+		     CQR_STATUS_ERP_PEND,
+		     CQR_STATUS_QUEUED);
+	} else {
+		PRINT_WARN ("ERP retry count exceeded\n");
+		ACS (cqr->status,
+		     CQR_STATUS_ERP_PEND,
+		     CQR_STATUS_FAILED);
+	}
+	atomic_set (&(((cqr_t *) erp)->status), CQR_STATUS_FILLED);
+}
+
+dasd_erp_action_t
+dasd_erp_action (struct cqr_t *cqr)
+{
+	return default_erp_action;
+}
+
+dasd_erp_action_t
+dasd_erp_postaction (struct erp_t * erp)
+{
+	return NULL;
+}