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Diffstat (limited to 'drivers/s390/cio/io_sch.h')
-rw-r--r--drivers/s390/cio/io_sch.h17
1 files changed, 11 insertions, 6 deletions
diff --git a/drivers/s390/cio/io_sch.h b/drivers/s390/cio/io_sch.h
index b9ce712a7f25..d024d2c21897 100644
--- a/drivers/s390/cio/io_sch.h
+++ b/drivers/s390/cio/io_sch.h
@@ -92,11 +92,12 @@ enum io_status {
* @filter: optional callback to adjust request status based on IRB data
* @callback: final callback
* @data: user-defined pointer passed to all callbacks
+ * @singlepath: if set, use only one path from @lpm per start I/O
+ * @cancel: non-zero if request was cancelled
+ * @done: non-zero if request was finished
* @mask: current path mask
* @retries: current number of retries
* @drc: delayed return code
- * @cancel: non-zero if request was cancelled
- * @done: non-zero if request was finished
*/
struct ccw_request {
struct ccw1 *cp;
@@ -108,12 +109,13 @@ struct ccw_request {
enum io_status);
void (*callback)(struct ccw_device *, void *, int);
void *data;
+ unsigned int singlepath:1;
/* These fields are used internally. */
+ unsigned int cancel:1;
+ unsigned int done:1;
u16 mask;
u16 retries;
int drc;
- int cancel:1;
- int done:1;
} __attribute__((packed));
/*
@@ -149,8 +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 */