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path: root/drivers/message/fusion/mptbase.c
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Diffstat (limited to 'drivers/message/fusion/mptbase.c')
-rw-r--r--drivers/message/fusion/mptbase.c33
1 files changed, 33 insertions, 0 deletions
diff --git a/drivers/message/fusion/mptbase.c b/drivers/message/fusion/mptbase.c
index 828f0ca7c1b3..7ef86cb3aa55 100644
--- a/drivers/message/fusion/mptbase.c
+++ b/drivers/message/fusion/mptbase.c
@@ -842,6 +842,38 @@ mpt_put_msg_frame(int handle, MPT_ADAPTER *ioc, MPT_FRAME_HDR *mf)
CHIPREG_WRITE32(&ioc->chip->RequestFifo, mf_dma_addr);
}
+/**
+ * mpt_put_msg_frame_hi_pri - Send a protocol specific MPT request frame
+ * to a IOC using hi priority request queue.
+ * @handle: Handle of registered MPT protocol driver
+ * @ioc: Pointer to MPT adapter structure
+ * @mf: Pointer to MPT request frame
+ *
+ * This routine posts a MPT request frame to the request post FIFO of a
+ * specific MPT adapter.
+ **/
+void
+mpt_put_msg_frame_hi_pri(int handle, MPT_ADAPTER *ioc, MPT_FRAME_HDR *mf)
+{
+ u32 mf_dma_addr;
+ int req_offset;
+ u16 req_idx; /* Request index */
+
+ /* ensure values are reset properly! */
+ mf->u.frame.hwhdr.msgctxu.fld.cb_idx = handle;
+ req_offset = (u8 *)mf - (u8 *)ioc->req_frames;
+ req_idx = req_offset / ioc->req_sz;
+ mf->u.frame.hwhdr.msgctxu.fld.req_idx = cpu_to_le16(req_idx);
+ mf->u.frame.hwhdr.msgctxu.fld.rsvd = 0;
+
+ DBG_DUMP_PUT_MSG_FRAME(ioc, (u32 *)mf);
+
+ mf_dma_addr = (ioc->req_frames_low_dma + req_offset);
+ dsgprintk(ioc, printk(MYIOC_s_DEBUG_FMT "mf_dma_addr=%x req_idx=%d\n",
+ ioc->name, mf_dma_addr, req_idx));
+ CHIPREG_WRITE32(&ioc->chip->RequestHiPriFifo, mf_dma_addr);
+}
+
/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
/**
* mpt_free_msg_frame - Place MPT request frame back on FreeQ.
@@ -7315,6 +7347,7 @@ EXPORT_SYMBOL(mpt_device_driver_register);
EXPORT_SYMBOL(mpt_device_driver_deregister);
EXPORT_SYMBOL(mpt_get_msg_frame);
EXPORT_SYMBOL(mpt_put_msg_frame);
+EXPORT_SYMBOL(mpt_put_msg_frame_hi_pri);
EXPORT_SYMBOL(mpt_free_msg_frame);
EXPORT_SYMBOL(mpt_add_sge);
EXPORT_SYMBOL(mpt_send_handshake_request);