diff options
| author | Sebastian Ott <sebott@linux.vnet.ibm.com> | 2010-08-09 18:12:53 +0200 |
|---|---|---|
| committer | Martin Schwidefsky <sky@mschwide.boeblingen.de.ibm.com> | 2010-08-09 18:12:54 +0200 |
| commit | 982bdf814616bec77c920e16ea4108d409f144ed (patch) | |
| tree | 7aee4e1dde2001ca5415103778fb95e93c3d2065 /drivers/s390/cio/device_pgid.c | |
| parent | 7cd403142d5dbffa354b7dd369b1069e01b1ae19 (diff) | |
[S390] ccwreq: add ability to use all paths
Change the ccwrequest infrastructure to use more than one channel
path per start I/O. A flag "singlepath" is added to struct
ccw_request - if set, the old behavior is used. This flag is set
for all exploiters of the ccwrequest infrastructure - so there
is no functional change through this patch.
Signed-off-by: Sebastian Ott <sebott@linux.vnet.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Diffstat (limited to 'drivers/s390/cio/device_pgid.c')
| -rw-r--r-- | drivers/s390/cio/device_pgid.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/s390/cio/device_pgid.c b/drivers/s390/cio/device_pgid.c index 6facb5499a65..f1fdf0ec7f03 100644 --- a/drivers/s390/cio/device_pgid.c +++ b/drivers/s390/cio/device_pgid.c @@ -208,6 +208,7 @@ static void spid_start(struct ccw_device *cdev) req->timeout = PGID_TIMEOUT; req->maxretries = PGID_RETRIES; req->lpm = 0x80; + req->singlepath = 1; req->callback = spid_callback; spid_do(cdev); } @@ -420,6 +421,7 @@ static void verify_start(struct ccw_device *cdev) req->timeout = PGID_TIMEOUT; req->maxretries = PGID_RETRIES; req->lpm = 0x80; + req->singlepath = 1; if (cdev->private->flags.pgroup) { CIO_TRACE_EVENT(4, "snid"); CIO_HEX_EVENT(4, devid, sizeof(*devid)); @@ -507,6 +509,7 @@ void ccw_device_disband_start(struct ccw_device *cdev) req->timeout = PGID_TIMEOUT; req->maxretries = PGID_RETRIES; req->lpm = sch->schib.pmcw.pam & sch->opm; + req->singlepath = 1; req->callback = disband_callback; fn = SPID_FUNC_DISBAND; if (cdev->private->flags.mpath) @@ -560,6 +563,7 @@ void ccw_device_stlck_start(struct ccw_device *cdev, void *data, void *buf1, req->timeout = PGID_TIMEOUT; req->maxretries = PGID_RETRIES; req->lpm = sch->schib.pmcw.pam & sch->opm; + req->singlepath = 1; req->data = data; req->callback = stlck_callback; stlck_build_cp(cdev, buf1, buf2); |