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| author | Jan Höppner <hoeppner@linux.ibm.com> | 2020-10-08 15:13:36 +0200 |
|---|---|---|
| committer | Jens Axboe <axboe@kernel.dk> | 2020-11-16 16:14:38 +0100 |
| commit | 4d063e646b4bfe8e74c0b4b78bf11c3a7b5d962a (patch) | |
| tree | 3799c1d219b80daceb3f7dafbe1e0598db2974b4 /drivers/s390/block/dasd.c | |
| parent | s390/dasd: Prepare for additional path event handling (diff) | |
| download | linux-4d063e646b4bfe8e74c0b4b78bf11c3a7b5d962a.tar.xz linux-4d063e646b4bfe8e74c0b4b78bf11c3a7b5d962a.zip | |
s390/dasd: Process FCES path event notification
If the Fibre Channel Endpoint-Security status of a path changes, a
corresponding path event is received from the CIO layer.
Process this event by re-reading the FCES information.
As the information is retrieved for all paths on a single CU in one
call, the internal status can also be updated for all paths and no
processing per path is necessary.
Signed-off-by: Jan Höppner <hoeppner@linux.ibm.com>
Signed-off-by: Stefan Haberland <sth@linux.ibm.com>
Reviewed-by: Stefan Haberland <sth@linux.ibm.com>
Reviewed-by: Cornelia Huck <cohuck@redhat.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'drivers/s390/block/dasd.c')
| -rw-r--r-- | drivers/s390/block/dasd.c | 19 |
1 files changed, 14 insertions, 5 deletions
diff --git a/drivers/s390/block/dasd.c b/drivers/s390/block/dasd.c index 8d7a53e98298..874345e1138c 100644 --- a/drivers/s390/block/dasd.c +++ b/drivers/s390/block/dasd.c @@ -2107,20 +2107,25 @@ static void __dasd_device_start_head(struct dasd_device *device) static void __dasd_device_check_path_events(struct dasd_device *device) { + __u8 tbvpm, fcsecpm; int rc; - if (!dasd_path_get_tbvpm(device)) + tbvpm = dasd_path_get_tbvpm(device); + fcsecpm = dasd_path_get_fcsecpm(device); + + if (!tbvpm && !fcsecpm) return; if (device->stopped & ~(DASD_STOPPED_DC_WAIT | DASD_UNRESUMED_PM)) return; - rc = device->discipline->pe_handler(device, - dasd_path_get_tbvpm(device)); - if (rc) + rc = device->discipline->pe_handler(device, tbvpm, fcsecpm); + if (rc) { dasd_device_set_timer(device, 50); - else + } else { dasd_path_clear_all_verify(device); + dasd_path_clear_all_fcsec(device); + } }; /* @@ -3869,6 +3874,10 @@ void dasd_generic_path_event(struct ccw_device *cdev, int *path_event) if (device->discipline->kick_validate) device->discipline->kick_validate(device); } + if (path_event[chp] & PE_PATH_FCES_EVENT) { + dasd_path_fcsec_update(device, chp); + dasd_schedule_device_bh(device); + } } hpfpm = dasd_path_get_hpfpm(device); ifccpm = dasd_path_get_ifccpm(device); |