On Tue, 2006-05-16 at 14:38 +0800, HighPoint Linux Team wrote:
_req = get_req(hba);
if (_req == NULL) {
dprintk("hptiop_queuecmd : no free req\n");
scp->result = DID_BUS_BUSY << 16;
goto cmd_done;
}
This should be doing a return SCSI_MLQUEUE_HOST_BUSY. DID_BUS_BUSY
doesn't do the resource contention counting that you want
(MLQUEUE_HOST_BUSY will wait until a command returns ... presumably
freeing up resources before trying another).
/*
* hptiop_shutdown will flash controller cache.
*/
if (scp->cmnd[0] == SYNCHRONIZE_CACHE) {
scp->result = DID_OK<<16;
goto cmd_done;
}
Are you really sure you want to do this? It looks like we'll be doing
this in cases where shutdown won't be called (like suspend).
host->can_queue = le32_to_cpu(iop_config.max_requests);
host->cmd_per_lun = le32_to_cpu(iop_config.max_requests);
You might want to think about adjusting this. For the single LUN case,
it's fine. For the multi-lun case it may allow commands to a single LUN
to starve everything else.
However, these are minor points ... I'll put the driver in and you can
fix them up later.
James
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