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| author | Sebastian Ott <sebott@linux.vnet.ibm.com> | 2010-10-25 16:10:31 +0200 |
|---|---|---|
| committer | Martin Schwidefsky <sky@mschwide.boeblingen.de.ibm.com> | 2010-10-25 16:10:18 +0200 |
| commit | c38a90a34cfc880eb2f7234c511cdb7d8bdebc45 (patch) | |
| tree | cf10e8b31b59c3f4734fd8254468f4cc83efdcaf /drivers | |
| parent | [S390] chsc: use the global page to determine the chp desriptor (diff) | |
| download | linux-c38a90a34cfc880eb2f7234c511cdb7d8bdebc45.tar.xz linux-c38a90a34cfc880eb2f7234c511cdb7d8bdebc45.zip | |
[S390] cio: update descriptor in chsc_chp_vary
Update the channel path descriptor at the beginning of to the
vary_on operation.
Signed-off-by: Sebastian Ott <sebott@linux.vnet.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Diffstat (limited to '')
| -rw-r--r-- | drivers/s390/cio/chp.c | 6 | ||||
| -rw-r--r-- | drivers/s390/cio/chp.h | 6 | ||||
| -rw-r--r-- | drivers/s390/cio/chsc.c | 8 |
3 files changed, 11 insertions, 9 deletions
diff --git a/drivers/s390/cio/chp.c b/drivers/s390/cio/chp.c index b1addd78689d..2d32233943a9 100644 --- a/drivers/s390/cio/chp.c +++ b/drivers/s390/cio/chp.c @@ -54,12 +54,6 @@ static struct work_struct cfg_work; /* Wait queue for configure completion events. */ static wait_queue_head_t cfg_wait_queue; -/* Return channel_path struct for given chpid. */ -static inline struct channel_path *chpid_to_chp(struct chp_id chpid) -{ - return channel_subsystems[chpid.cssid]->chps[chpid.id]; -} - /* Set vary state for given chpid. */ static void set_chp_logically_online(struct chp_id chpid, int onoff) { diff --git a/drivers/s390/cio/chp.h b/drivers/s390/cio/chp.h index 695ec20f1c59..12b4903d6fe3 100644 --- a/drivers/s390/cio/chp.h +++ b/drivers/s390/cio/chp.h @@ -52,6 +52,12 @@ struct channel_path { void *cmg_chars; }; +/* Return channel_path struct for given chpid. */ +static inline struct channel_path *chpid_to_chp(struct chp_id chpid) +{ + return channel_subsystems[chpid.cssid]->chps[chpid.id]; +} + int chp_get_status(struct chp_id chpid); u8 chp_get_sch_opm(struct subchannel *sch); int chp_is_registered(struct chp_id chpid); diff --git a/drivers/s390/cio/chsc.c b/drivers/s390/cio/chsc.c index 27aca3906a53..44d7cc2f9738 100644 --- a/drivers/s390/cio/chsc.c +++ b/drivers/s390/cio/chsc.c @@ -495,6 +495,7 @@ __s390_vary_chpid_on(struct subchannel_id schid, void *data) */ int chsc_chp_vary(struct chp_id chpid, int on) { + struct channel_path *chp = chpid_to_chp(chpid); struct chp_link link; memset(&link, 0, sizeof(struct chp_link)); @@ -504,11 +505,12 @@ int chsc_chp_vary(struct chp_id chpid, int on) /* * Redo PathVerification on the devices the chpid connects to */ - - if (on) + if (on) { + /* Try to update the channel path descritor. */ + chsc_determine_base_channel_path_desc(chpid, &chp->desc); for_each_subchannel_staged(s390_subchannel_vary_chpid_on, __s390_vary_chpid_on, &link); - else + } else for_each_subchannel_staged(s390_subchannel_vary_chpid_off, NULL, &link); |