diff options
Diffstat (limited to 'drivers/message/fusion/mptbase.c')
| -rw-r--r-- | drivers/message/fusion/mptbase.c | 33 |
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); |