[SCSI] mpt fusion: Usage of high priority request FIFO to send task management commands
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>
diff --git a/drivers/message/fusion/mptscsih.c b/drivers/message/fusion/mptscsih.c
index 5431529..b8b0598 100644
--- a/drivers/message/fusion/mptscsih.c
+++ b/drivers/message/fusion/mptscsih.c
@@ -1717,12 +1717,18 @@
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) {