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[SCSI] mpt fusion: Usage of high priority request FIFO to send task management commands

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Added support for sending the task management requests through High priority
request FIFO instead of Doorbell writes when firmware support High priority
FIFO.

signed-off-by: Sathya Prakash <sathya.prakash@lsi.com>
Acked-by: Eric Moore <Eric.Moore@lsi.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
This commit is contained in:
Prakash, Sathya
2007-08-14 16:08:40 +05:30
committed by James Bottomley
parent 232f08fc82
commit 7a195f464e
5 changed files with 75 additions and 28 deletions
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14
drivers/message/fusion/mptscsih.c
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@@ -1717,12 +1717,18 @@ mptscsih_IssueTaskMgmt(MPT_SCSI_HOST *hd, u8 type, u8 channel, u8 id, int lun, i
DBG_DUMP_TM_REQUEST_FRAME(ioc, (u32 *)pScsiTm);
if ((retval = mpt_send_handshake_request(hd->ioc->TaskCtx, hd->ioc,
sizeof(SCSITaskMgmt_t), (u32*)pScsiTm, CAN_SLEEP)) != 0) {
dfailprintk(hd->ioc, printk(MYIOC_s_ERR_FMT "send_handshake FAILED!"
if ((hd->ioc->facts.IOCCapabilities & MPI_IOCFACTS_CAPABILITY_HIGH_PRI_Q) &&
(hd->ioc->facts.MsgVersion >= MPI_VERSION_01_05))
mpt_put_msg_frame_hi_pri(hd->ioc->TaskCtx, hd->ioc, mf);
else {
retval = mpt_send_handshake_request(hd->ioc->TaskCtx, hd->ioc,
sizeof(SCSITaskMgmt_t), (u32*)pScsiTm, CAN_SLEEP);
if (retval) {
dfailprintk(hd->ioc, printk(MYIOC_s_ERR_FMT "send_handshake FAILED!"
" (hd %p, ioc %p, mf %p, rc=%d) \n", hd->ioc->name, hd,
hd->ioc, mf, retval));
goto fail_out;
goto fail_out;
}
}
if(mptscsih_tm_wait_for_completion(hd, timeout) == FAILED) {