freebsd-dev/sys/dev/twa/tw_osl_externs.h

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/*
* Copyright (c) 2004-07 Applied Micro Circuits Corporation.
* Copyright (c) 2004-05 Vinod Kashyap.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* $FreeBSD$
*/
/*
* AMCC'S 3ware driver for 9000 series storage controllers.
*
* Author: Vinod Kashyap
* Modifications by: Adam Radford
*/
#ifndef TW_OSL_EXTERNS_H
#define TW_OSL_EXTERNS_H
/*
* Data structures and functions global to the OS Layer.
*/
/* External data structures. */
extern int mp_ncpus;
/* Functions in tw_osl_freebsd.c */
/* Build a firmware passthru cmd pkt, and submit it to CL. */
extern TW_INT32 tw_osli_fw_passthru(struct twa_softc *sc, TW_INT8 *buf);
/* Get an OSL internal request context packet. */
extern struct tw_osli_req_context *tw_osli_get_request(struct twa_softc *sc);
/* Map data to DMA'able memory. */
extern TW_INT32 tw_osli_map_request(struct tw_osli_req_context *req);
/* Undo mapping. */
extern TW_VOID tw_osli_unmap_request(struct tw_osli_req_context *req);
/* Functions in tw_osl_cam.c */
/* Attach to CAM. */
extern TW_INT32 tw_osli_cam_attach(struct twa_softc *sc);
/* Detach from CAM. */
extern TW_VOID tw_osli_cam_detach(struct twa_softc *sc);
/* Request CAM for a bus scan. */
extern TW_INT32 tw_osli_request_bus_scan(struct twa_softc *sc);
/* Freeze ccb flow from CAM. */
Apply driver update from LSI. Many thanks to LSI for continuing to support FreeBSD. 1) Timeout ioctl command timeouts. Do not reset the controller if ioctl command completed successfully. 2) Remove G66_WORKAROUND code (this bug never shipped). 3) Remove unnecessary interrupt lock (intr_lock). 4) Timeout firmware handshake for PChip reset (don't wait forever). 5) Handle interrupts inline. 6) Unmask command interrupt ONLY when adding a command to the pending queue. 7) Mask command interrupt ONLY after removing the last command from the pending queue. 8) Remove TW_OSLI_DEFERRED_INTR_USED code. 9) Replace controller "state" with separate data fields to avoid races: TW_CLI_CTLR_STATE_ACTIVE ctlr->active TW_CLI_CTLR_STATE_INTR_ENABLED ctlr->interrupts_enabled TW_CLI_CTLR_STATE_INTERNAL_REQ_BUSY ctlr->internal_req_busy TW_CLI_CTLR_STATE_GET_MORE_AENS ctlr->get_more_aens TW_CLI_CTLR_STATE_RESET_IN_PROGRESS ctlr->reset_in_progress TW_CLI_CTLR_STATE_RESET_PHASE1_IN_PROGRESS ctlr->reset_phase1_in_progress 10) Fix "req" leak in twa_action() when simq is frozen and req is NOT null. 11) Replace softc "state" with separate data fields to avoid races: TW_OSLI_CTLR_STATE_OPEN sc->open TW_OSLI_CTLR_STATE_SIMQ_FROZEN sc->simq_frozen 12) Fix reference to TW_OSLI_REQ_FLAGS_IN_PROGRESS in tw_osl_complete_passthru() 13) Use correct CAM status values. Change CAM_REQ_CMP_ERR to CAM_REQ_INVALID. Remove use of CAM_RELEASE_SIMQ for physical data addresses. 14) Do not freeze/ release the simq with non I/O commands. When it is appropriate to temporarily freeze the simq with an I/O command use: xpt_freeze_simq(sim, 1); ccb->ccb_h.status |= CAM_RELEASE_SIMQ; otherwise use: xpt_freeze_simq(sim, 1); xpt_release_simq(sim, 1); Submitted by: Tom Couch <tom.couch lsi.com> PR: kern/147695 MFC after: 3 days
2010-06-09 21:40:38 +00:00
extern TW_VOID tw_osli_disallow_new_requests(struct twa_softc *sc,
struct tw_cl_req_handle *req_handle);
/* OSL's completion routine for SCSI I/O's. */
extern TW_VOID tw_osl_complete_io(struct tw_cl_req_handle *req_handle);
/* OSL's completion routine for passthru requests. */
extern TW_VOID tw_osl_complete_passthru(struct tw_cl_req_handle *req_handle);
#endif /* TW_OSL_EXTERNS_H */