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| author | Heiko Carstens <hca@linux.ibm.com> | 2025-10-21 10:26:26 +0200 |
|---|---|---|
| committer | Heiko Carstens <hca@linux.ibm.com> | 2025-10-21 10:26:26 +0200 |
| commit | 5e09c0a03eb9a2710e42d2291751ed27e1b14f76 (patch) | |
| tree | c4e4239ebe67478e16d5af8bda27479e9e10ed34 /tools/docs/parse-headers.py | |
| parent | ec9b3b85ea28ac4ecd7483b0c8c4745948051ed7 (diff) | |
| parent | 319d3d66537e615e0729ae734099fe01581bc09d (diff) | |
Merge branch 'tape-block-sizes'
Jan Höppner says:
====================
The tape device driver is limited to a block size of 65535 bytes since a
single CCW can only transfer up to 64K-1 bytes (The count field is a
16bit value). This series introduces data chaining for all read/write
functions to support block sizes larger than 65535.
The tape device type 3490 (emulated) and 3590/3592 can handle up to
256K. [1]
[1] https://www.ibm.com/docs/en/zos/3.1.0?topic=blksize-system-determined-block-size
====================
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
Diffstat (limited to 'tools/docs/parse-headers.py')
0 files changed, 0 insertions, 0 deletions