From: Stefan Haberland <sth@linux.ibm.com>
Date: Tue, 20 Sep 2022 21:26:15 +0200
Subject: s390/dasd: suppress generic error messages for PPRC secondary devices
Git-commit: 1fca631a1185d1de9eab65ee963fec20efcc528a
Patch-mainline: v6.1-rc1
References: jsc#PED-599

Suppress generic command reject messages and dump of sense data for
Peer-To-Peer-Remote-Copy (PPRC) secondary errors.
If IO is issued on a PPRC secondary device, a specific
error message is printed instead.

Signed-off-by: Stefan Haberland <sth@linux.ibm.com>
Reviewed-by: Jan Hoeppner <hoeppner@linux.ibm.com>
Link: https://lore.kernel.org/r/20220920192616.808070-7-sth@linux.ibm.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Acked-by: Petr Tesarik <ptesarik@suse.com>
---
 arch/s390/include/asm/scsw.h       |    5 +++++
 drivers/s390/block/dasd_3990_erp.c |    5 +++++
 2 files changed, 10 insertions(+)

--- a/arch/s390/include/asm/scsw.h
+++ b/arch/s390/include/asm/scsw.h
@@ -215,6 +215,11 @@ union scsw {
 #define SNS2_ENV_DATA_PRESENT	0x10
 #define SNS2_INPRECISE_END	0x04
 
+/*
+ * architectured values for PPRC errors
+ */
+#define SNS7_INVALID_ON_SEC	0x0e
+
 /**
  * scsw_is_tm - check for transport mode scsw
  * @scsw: pointer to scsw
--- a/drivers/s390/block/dasd_3990_erp.c
+++ b/drivers/s390/block/dasd_3990_erp.c
@@ -1050,6 +1050,11 @@ dasd_3990_erp_com_rej(struct dasd_ccw_re
 		dev_err(&device->cdev->dev, "An I/O request was rejected"
 			" because writing is inhibited\n");
 		erp = dasd_3990_erp_cleanup(erp, DASD_CQR_FAILED);
+	} else if (sense[7] & SNS7_INVALID_ON_SEC) {
+		dev_err(&device->cdev->dev, "An I/O request was rejected on a copy pair secondary device\n");
+		/* suppress dump of sense data for this error */
+		set_bit(DASD_CQR_SUPPRESS_CR, &erp->refers->flags);
+		erp = dasd_3990_erp_cleanup(erp, DASD_CQR_FAILED);
 	} else {
 		/* fatal error -  set status to FAILED
 		   internal error 09 - Command Reject */