[S390] cio: notify drivers of channel path events

This patch adds a notification mechanism to inform ccw drivers
about changes to channel paths, which occured while the device
is online.

Signed-off-by: Sebastian Ott <sebott@linux.vnet.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>

1 files changed, 5 insertions, 2 deletions

diff --git a/drivers/s390/cio/io_sch.h b/drivers/s390/cio/io_sch.h
index 469ef93f2302..d024d2c21897 100644
--- a/drivers/s390/cio/io_sch.h
+++ b/drivers/s390/cio/io_sch.h
@@ -151,8 +151,11 @@ struct ccw_device_private {
         struct subchannel_id schid;     /* subchannel number */
         struct ccw_request req;         /* internal I/O request */
         int iretry;
-        u8 pgid_valid_mask;             /* mask of valid PGIDs */
-        u8 pgid_todo_mask;              /* mask of PGIDs to be adjusted */
+        u8 pgid_valid_mask;     /* mask of valid PGIDs */
+        u8 pgid_todo_mask;      /* mask of PGIDs to be adjusted */
+        u8 pgid_reset_mask;     /* mask of PGIDs which were reset */
+        u8 path_gone_mask;      /* mask of paths, that became unavailable */
+        u8 path_new_mask;       /* mask of paths, that became available */
         struct {
                 unsigned int fast:1;    /* post with "channel end" */
                 unsigned int repall:1;  /* report every interrupt status */