diff options
| author | Stefan Haberland <sth@linux.ibm.com> | 2026-08-05 13:16:10 +0200 |
|---|---|---|
| committer | Jens Axboe <axboe@kernel.dk> | 2026-08-05 06:32:26 -0600 |
| commit | 6c1be943fdb6f8557596f5164ea48ae65cd0c1df (patch) | |
| tree | f630d740cb82dc8e4a4157a107fe240a0a81a2e8 | |
| parent | 268e40548da2758851b6962a0a4ed2ab241ddbe9 (diff) | |
s390/dasd: Report ESE capability and format mode at device online
Extend the device information line logged when a volume comes online with
the ESE hardware capability and the on-disk format mode. The format mode
(full or on demand) is derived from the on-disk format label alone, so a
volume that is not backed by ESE hardware but was still formatted on
demand is reported correctly.
Reviewed-by: Jan Höppner <hoeppner@linux.ibm.com>
Signed-off-by: Stefan Haberland <sth@linux.ibm.com>
Link: https://patch.msgid.link/20260805111612.1285190-18-sth@linux.ibm.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
| -rw-r--r-- | drivers/s390/block/dasd_eckd.c | 21 |
1 files changed, 18 insertions, 3 deletions
diff --git a/drivers/s390/block/dasd_eckd.c b/drivers/s390/block/dasd_eckd.c index d3e107bf63c4..c2c60530fe0d 100644 --- a/drivers/s390/block/dasd_eckd.c +++ b/drivers/s390/block/dasd_eckd.c @@ -2522,6 +2522,7 @@ static int dasd_eckd_end_analysis(struct dasd_block *block) struct dasd_device *device = block->base; struct dasd_eckd_private *private = device->private; struct eckd_count *count_area; + const char *ese_str, *fmt_str; unsigned int sb, blk_per_trk; int status, i; struct dasd_ccw_req *init_cqr; @@ -2608,15 +2609,29 @@ raw: private->rdc_data.trk_per_cyl * blk_per_trk); + /* + * Report the ESE hardware capability and the format mode. The mode + * comes from dasd_eckd_on_demand_format() (the on-disk label, or the + * ESE state when no label is present), matching the on_demand_formatting + * sysfs attribute. + */ + ese_str = dasd_eckd_ese_capable(device) ? ", ESE" : ""; + fmt_str = ""; + if (dasd_eckd_on_demand_format(device)) + fmt_str = ", on-demand format"; + else if (dasd_eckd_ese_capable(device)) + fmt_str = ", full format"; + dev_info(&device->cdev->dev, - "DASD with %u KB/block, %lu KB total size, %u KB/track, " - "%s\n", (block->bp_block >> 10), + "DASD with %u KB/block, %lu KB total size, %u KB/track, %s%s%s\n", + (block->bp_block >> 10), (((unsigned long) private->real_cyl * private->rdc_data.trk_per_cyl * blk_per_trk * (block->bp_block >> 9)) >> 1), ((blk_per_trk * block->bp_block) >> 10), private->uses_cdl ? - "compatible disk layout" : "linux disk layout"); + "compatible disk layout" : "linux disk layout", + ese_str, fmt_str); return 0; } |