• Jan Glauber's avatar
    [S390] qdio: outbound tasklet scan threshold · 3d6c76ff
    Jan Glauber authored
    Introduce a scan treshold for the qdio outbound queues. By setting the
    threshold the driver can tell qdio after how much used SBALs qdio
    should schedule the outbound tasklet that scans the queue for finished
    SBALs. The threshold is specific by the drivers because a
    Hipersockets device is much faster in utilizing outbound buffers than a
    ZFCP or OSA device.
    
    The default values after how many used SBALs the tasklet should run are:
    
    OSA:          > 31 SBALs
    Hipersockets: > 7 SBALs
    zfcp:         > 55 SBALs
    Signed-off-by: default avatarJan Glauber <jang@linux.vnet.ibm.com>
    Signed-off-by: default avatarMartin Schwidefsky <schwidefsky@de.ibm.com>
    3d6c76ff
qeth_core_main.c 130 KB