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authorSebastian Ott <sebott@linux.vnet.ibm.com>2013-02-28 11:07:48 (GMT)
committerMartin Schwidefsky <schwidefsky@de.ibm.com>2013-03-07 08:52:23 (GMT)
commit4fa3c019640ef776e393345ed35d9ec5c51aa3c1 (patch)
tree496a04beb012b9111f3735dbf3cf14a5861b71bd /arch/s390
parent93481c90200c50c7874b6a773acc87095ee3907d (diff)
downloadlinux-4fa3c019640ef776e393345ed35d9ec5c51aa3c1.tar.xz
s390/scm_blk: suspend writes
Stop writing to scm after certain error conditions such as a concurrent firmware upgrade. Resume to normal state once scm_blk_set_available is called (due to an scm availability notification). Reviewed-by: Peter Oberparleiter <peter.oberparleiter@de.ibm.com> Signed-off-by: Sebastian Ott <sebott@linux.vnet.ibm.com> Signed-off-by: Peter Oberparleiter <peter.oberparleiter@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Diffstat (limited to 'arch/s390')
-rw-r--r--arch/s390/include/asm/eadm.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/arch/s390/include/asm/eadm.h b/arch/s390/include/asm/eadm.h
index a4a1ea4..78141be 100644
--- a/arch/s390/include/asm/eadm.h
+++ b/arch/s390/include/asm/eadm.h
@@ -34,6 +34,8 @@ struct arsb {
u32 reserved[4];
} __packed;
+#define EQC_WR_PROHIBIT 22
+
struct msb {
u8 fmt:4;
u8 oc:4;