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f0c1dee27f
3ware's 9xxx series controllers. This corresponds to
the 9.2 release (for FreeBSD 5.2.1) on the 3ware website.
Highlights of this release are:
1. The driver has been re-architected to use a "Common Layer"
(all tw_cl* files), which is a consolidation of all OS-independent
parts of the driver. The FreeBSD OS specific portions of the
driver go into an "OS Layer" (all tw_osl* files).
This re-architecture is to achieve better maintainability, consistency
of behavior across OS's, and better portability to new OS's (drivers
for new OS's can be written by just adding an OS Layer that's specific
to the OS, by complying to a "Common Layer Programming Interface" API.
2. The driver takes advantage of multiple processors.
3. The driver has a new firmware image bundled, the new features of which
include Online Capacity Expansion and multi-lun support, among others.
More details about 3ware's 9.2 release can be found here:
http://www.3ware.com/download/Escalade9000Series/9.2/9.2_Release_Notes_Web.pdf
Since the Common Layer is used across OS's, the FreeBSD specific include
path for header files (/sys/dev/twa) is not part of the #include pre-processor
directive in any of the source files. For being able to integrate twa into
the kernel despite this, Makefile.<arch> has been changed to add the include
path to CFLAGS.
Reviewed by: scottl
96 lines
2.9 KiB
C
96 lines
2.9 KiB
C
/*
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* Copyright (c) 2004-05 Applied Micro Circuits Corporation.
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* Copyright (c) 2004-05 Vinod Kashyap.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* $FreeBSD$
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*/
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/*
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* AMCC'S 3ware driver for 9000 series storage controllers.
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*
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* Author: Vinod Kashyap
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*/
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#ifndef TW_OSL_EXTERNS_H
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#define TW_OSL_EXTERNS_H
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/*
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* Data structures and functions global to the OS Layer.
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*/
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/* External data structures. */
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extern int mp_ncpus;
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/* Functions in tw_osl_freebsd.c */
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/* Build a firmware passthru cmd pkt, and submit it to CL. */
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extern TW_INT32 tw_osli_fw_passthru(struct twa_softc *sc, TW_INT8 *buf);
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/* Get an OSL internal request context packet. */
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extern struct tw_osli_req_context *tw_osli_get_request(struct twa_softc *sc);
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/* Map data to DMA'able memory. */
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extern TW_INT32 tw_osli_map_request(struct tw_osli_req_context *req);
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/* Undo mapping. */
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extern TW_VOID tw_osli_unmap_request(struct tw_osli_req_context *req);
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/* Functions in tw_osl_cam.c */
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/* Attach to CAM. */
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extern TW_INT32 tw_osli_cam_attach(struct twa_softc *sc);
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/* Detach from CAM. */
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extern TW_VOID tw_osli_cam_detach(struct twa_softc *sc);
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/* Request CAM for a bus scan. */
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extern TW_INT32 tw_osli_request_bus_scan(struct twa_softc *sc);
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/* Unfreeze ccb flow from CAM. */
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extern TW_VOID tw_osli_allow_new_requests(struct twa_softc *sc, TW_VOID *ccb);
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/* Freeze ccb flow from CAM. */
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extern TW_VOID tw_osli_disallow_new_requests(struct twa_softc *sc);
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/* OSL's completion routine for SCSI I/O's. */
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extern TW_VOID tw_osl_complete_io(struct tw_cl_req_handle *req_handle);
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/* OSL's completion routine for passthru requests. */
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extern TW_VOID tw_osl_complete_passthru(struct tw_cl_req_handle *req_handle);
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#endif /* TW_OSL_EXTERNS_H */
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