5552eed8e5
The main changes are: 1. Use of multiple bus dma tags. 2. Timing of CAM requests by the driver. 3, Firmware interface change relating to retrieving AEN's. 4. Removal of twa_intrhook. 5. Bundling of latest firmware with BBU capability. Reviewed by:re Approved by:re
80 lines
4.2 KiB
C
80 lines
4.2 KiB
C
/*-
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* Copyright (c) 2003-04 3ware, Inc.
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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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* 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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/* Global data structures */
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extern char twa_fw_img[];
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extern int twa_fw_img_size;
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extern struct twa_message twa_aen_table[];
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extern char *twa_aen_severity_table[];
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extern struct twa_message twa_error_table[];
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/* Functions in twa.c */
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extern int twa_setup(struct twa_softc *sc); /* do early driver/controller setup */
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extern int twa_deinit_ctlr(struct twa_softc *sc); /* stop controller */
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extern void twa_interrupt(struct twa_softc *sc); /* ISR */
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extern int twa_ioctl(struct twa_softc *sc, int cmd, void *addr);/* handle user request */
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extern void twa_enable_interrupts(struct twa_softc *sc); /* enable controller interrupts */
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extern void twa_disable_interrupts(struct twa_softc *sc); /* disable controller interrupts */
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extern void twa_complete_io(struct twa_request *tr); /* I/O completion callback */
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extern int twa_reset(struct twa_softc *sc); /* (soft) reset controller */
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extern int twa_submit_io(struct twa_request *tr); /* wrapper to twa_start */
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extern int twa_start(struct twa_request *tr); /* submit command to controller */
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extern char *twa_find_msg_string(struct twa_message *table, u_int16_t code);/* lookup a msg */
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extern struct twa_request *twa_get_request(struct twa_softc *sc);/* get a req pkt from free pool */
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extern void twa_release_request(struct twa_request *tr); /* put a req pkt back into free pool */
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extern void twa_describe_controller(struct twa_softc *sc); /* describe controller info */
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extern void twa_print_controller(struct twa_softc *sc); /* print controller state */
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/* Functions in twa_freebsd.c */
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extern void twa_write_pci_config(struct twa_softc *sc, u_int32_t value, int size);/* write to pci config space */
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extern int twa_alloc_req_pkts(struct twa_softc *sc, int num_reqs); /* alloc req & cmd pkts */
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extern int twa_map_request(struct twa_request *tr); /* copy cmd pkt & data to DMA'able memory */
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extern void twa_unmap_request(struct twa_request *tr); /* undo mapping */
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/* Functions in twa_cam.c */
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extern void twa_request_bus_scan(struct twa_softc *sc); /* request CAM for a bus scan */
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extern int twa_send_scsi_cmd(struct twa_request *tr, int cmd);/* send down a SCSI cmd */
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extern void twa_scsi_complete(struct twa_request *tr); /* complete a SCSI cmd by calling CAM */
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extern void twa_drain_busy_queue(struct twa_softc *sc); /* drain busy queue (during reset) */
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extern int twa_cam_setup(struct twa_softc *sc); /* attach to CAM */
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extern void twa_cam_detach(struct twa_softc *sc); /* detach from CAM */
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extern void twa_allow_new_requests(struct twa_softc *sc, void *ccb);/* unfreeze ccb flow from CAM */
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extern void twa_disallow_new_requests(struct twa_softc *sc);/* freeze ccb flow from CAM */
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extern void twa_set_timer(struct twa_request *tr); /* Set a timer to time a given request */
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extern void twa_unset_timer(struct twa_request *tr);/* Unset a previously set timer */
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