diff options
| author | Jan Glauber <[email protected]> | 2010-09-07 21:14:39 +0000 |
|---|---|---|
| committer | David S. Miller <[email protected]> | 2010-09-08 14:31:00 -0700 |
| commit | d36deae75011a7890f0e730dd0f867c64081cb50 (patch) | |
| tree | d24672cf5cc40c637186362187450362cabefd24 /scripts/objdiff | |
| parent | e508be174ad36b0cf9b324cd04978c2b13c21502 (diff) | |
qdio: extend API to allow polling
Extend the qdio API to allow polling in the upper-layer driver. This
is needed by qeth to use NAPI.
To use the new interface the upper-layer driver must specify the
queue_start_poll(). This callback is used to signal the upper-layer
driver that is has initiative and must process the inbound queue by
calling qdio_get_next_buffers(). If the upper-layer driver wants to
stop polling it calls qdio_start_irq().
Since adapter interrupts are not completely stoppable qdio implements
a software bit QDIO_QUEUE_IRQS_DISABLED to safely disable interrupts for an
input queue.
The old interface is preserved and will be used as is by zfcp.
Signed-off-by: Jan Glauber <[email protected]>
Signed-off-by: Martin Schwidefsky <[email protected]>
Signed-off-by: Frank Blaschka <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
Diffstat (limited to 'scripts/objdiff')
0 files changed, 0 insertions, 0 deletions