b13001b64e
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
/*-
|
|
* Copyright (c) 2003-04 3ware, Inc.
|
|
* 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.
|
|
*
|
|
* $FreeBSD$
|
|
*/
|
|
|
|
/*
|
|
* 3ware driver for 9000 series storage controllers.
|
|
*
|
|
* Author: Vinod Kashyap
|
|
*/
|
|
|
|
|
|
/* Global data structures */
|
|
extern char twa_fw_img[];
|
|
extern int twa_fw_img_size;
|
|
extern struct twa_message twa_aen_table[];
|
|
extern char *twa_aen_severity_table[];
|
|
extern struct twa_message twa_error_table[];
|
|
|
|
|
|
/* Functions in twa.c */
|
|
extern int twa_setup(struct twa_softc *sc); /* do early driver/controller setup */
|
|
extern int twa_deinit_ctlr(struct twa_softc *sc); /* stop controller */
|
|
extern void twa_interrupt(struct twa_softc *sc); /* ISR */
|
|
extern int twa_ioctl(struct twa_softc *sc, int cmd, void *addr);/* handle user request */
|
|
extern void twa_enable_interrupts(struct twa_softc *sc); /* enable controller interrupts */
|
|
extern void twa_disable_interrupts(struct twa_softc *sc); /* disable controller interrupts */
|
|
extern void twa_complete_io(struct twa_request *tr); /* I/O completion callback */
|
|
extern int twa_reset(struct twa_softc *sc); /* (soft) reset controller */
|
|
extern int twa_submit_io(struct twa_request *tr); /* wrapper to twa_start */
|
|
extern int twa_start(struct twa_request *tr); /* submit command to controller */
|
|
extern char *twa_find_msg_string(struct twa_message *table, u_int16_t code);/* lookup a msg */
|
|
extern struct twa_request *twa_get_request(struct twa_softc *sc);/* get a req pkt from free pool */
|
|
extern void twa_release_request(struct twa_request *tr); /* put a req pkt back into free pool */
|
|
extern void twa_describe_controller(struct twa_softc *sc); /* describe controller info */
|
|
extern void twa_print_controller(struct twa_softc *sc); /* print controller state */
|
|
|
|
/* Functions in twa_freebsd.c */
|
|
extern void twa_write_pci_config(struct twa_softc *sc, u_int32_t value, int size);/* write to pci config space */
|
|
extern int twa_alloc_req_pkts(struct twa_softc *sc, int num_reqs); /* alloc req & cmd pkts */
|
|
extern int twa_map_request(struct twa_request *tr); /* copy cmd pkt & data to DMA'able memory */
|
|
extern void twa_unmap_request(struct twa_request *tr); /* undo mapping */
|
|
|
|
/* Functions in twa_cam.c */
|
|
extern void twa_request_bus_scan(struct twa_softc *sc); /* request CAM for a bus scan */
|
|
extern int twa_send_scsi_cmd(struct twa_request *tr, int cmd);/* send down a SCSI cmd */
|
|
extern void twa_scsi_complete(struct twa_request *tr); /* complete a SCSI cmd by calling CAM */
|
|
extern void twa_drain_busy_queue(struct twa_softc *sc); /* drain busy queue (during reset) */
|
|
|
|
extern int twa_cam_setup(struct twa_softc *sc); /* attach to CAM */
|
|
extern void twa_cam_detach(struct twa_softc *sc); /* detach from CAM */
|
|
extern void twa_allow_new_requests(struct twa_softc *sc, void *ccb);/* unfreeze ccb flow from CAM */
|
|
extern void twa_disallow_new_requests(struct twa_softc *sc);/* freeze ccb flow from CAM */
|
|
extern void twa_set_timer(struct twa_request *tr); /* Set a timer to time a given request */
|
|
extern void twa_unset_timer(struct twa_request *tr);/* Unset a previously set timer */
|
|
|