1281 lines
40 KiB
C
1281 lines
40 KiB
C
/*
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* SPDX-License-Identifier: BSD-2-Clause-FreeBSD
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*
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* Copyright (c) 2010 LSI Corp.
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* All rights reserved.
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* Author : Manjunath Ranganathaiah <manjunath.ranganathaiah@lsi.com>
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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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#include <dev/tws/tws.h>
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#include <dev/tws/tws_services.h>
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#include <dev/tws/tws_hdm.h>
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#include <dev/tws/tws_user.h>
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#include <cam/cam.h>
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#include <cam/cam_ccb.h>
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#include <cam/cam_sim.h>
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#include <cam/cam_xpt_sim.h>
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#include <cam/cam_debug.h>
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#include <cam/cam_periph.h>
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#include <cam/scsi/scsi_all.h>
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#include <cam/scsi/scsi_message.h>
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static int tws_cam_depth=(TWS_MAX_REQS - TWS_RESERVED_REQS);
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static char tws_sev_str[5][8]={"","ERROR","WARNING","INFO","DEBUG"};
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static void tws_action(struct cam_sim *sim, union ccb *ccb);
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static void tws_poll(struct cam_sim *sim);
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static void tws_scsi_complete(struct tws_request *req);
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void tws_unmap_request(struct tws_softc *sc, struct tws_request *req);
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int32_t tws_map_request(struct tws_softc *sc, struct tws_request *req);
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int tws_bus_scan(struct tws_softc *sc);
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int tws_cam_attach(struct tws_softc *sc);
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void tws_cam_detach(struct tws_softc *sc);
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void tws_reset(void *arg);
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static void tws_reset_cb(void *arg);
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static void tws_reinit(void *arg);
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static int32_t tws_execute_scsi(struct tws_softc *sc, union ccb *ccb);
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static void tws_freeze_simq(struct tws_softc *sc, struct tws_request *req);
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static void tws_dmamap_data_load_cbfn(void *arg, bus_dma_segment_t *segs,
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int nseg, int error);
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static void tws_fill_sg_list(struct tws_softc *sc, void *sgl_src,
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void *sgl_dest, u_int16_t num_sgl_entries);
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static void tws_err_complete(struct tws_softc *sc, u_int64_t mfa);
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static void tws_scsi_err_complete(struct tws_request *req,
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struct tws_command_header *hdr);
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static void tws_passthru_err_complete(struct tws_request *req,
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struct tws_command_header *hdr);
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void tws_timeout(void *arg);
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static void tws_intr_attn_aen(struct tws_softc *sc);
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static void tws_intr_attn_error(struct tws_softc *sc);
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static void tws_intr_resp(struct tws_softc *sc);
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void tws_intr(void *arg);
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void tws_cmd_complete(struct tws_request *req);
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void tws_aen_complete(struct tws_request *req);
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int tws_send_scsi_cmd(struct tws_softc *sc, int cmd);
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void tws_getset_param_complete(struct tws_request *req);
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int tws_set_param(struct tws_softc *sc, u_int32_t table_id, u_int32_t param_id,
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u_int32_t param_size, void *data);
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int tws_get_param(struct tws_softc *sc, u_int32_t table_id, u_int32_t param_id,
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u_int32_t param_size, void *data);
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extern struct tws_request *tws_get_request(struct tws_softc *sc,
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u_int16_t type);
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extern void *tws_release_request(struct tws_request *req);
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extern int tws_submit_command(struct tws_softc *sc, struct tws_request *req);
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extern boolean tws_get_response(struct tws_softc *sc,
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u_int16_t *req_id, u_int64_t *mfa);
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extern void tws_q_insert_tail(struct tws_softc *sc, struct tws_request *req,
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u_int8_t q_type );
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extern struct tws_request * tws_q_remove_request(struct tws_softc *sc,
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struct tws_request *req, u_int8_t q_type );
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extern void tws_send_event(struct tws_softc *sc, u_int8_t event);
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extern struct tws_sense *
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tws_find_sense_from_mfa(struct tws_softc *sc, u_int64_t mfa);
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extern void tws_fetch_aen(void *arg);
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extern void tws_disable_db_intr(struct tws_softc *sc);
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extern void tws_enable_db_intr(struct tws_softc *sc);
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extern void tws_passthru_complete(struct tws_request *req);
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extern void tws_aen_synctime_with_host(struct tws_softc *sc);
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extern void tws_circular_aenq_insert(struct tws_softc *sc,
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struct tws_circular_q *cq, struct tws_event_packet *aen);
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extern int tws_use_32bit_sgls;
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extern boolean tws_ctlr_reset(struct tws_softc *sc);
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extern struct tws_request * tws_q_remove_tail(struct tws_softc *sc,
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u_int8_t q_type );
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extern void tws_turn_off_interrupts(struct tws_softc *sc);
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extern void tws_turn_on_interrupts(struct tws_softc *sc);
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extern int tws_init_connect(struct tws_softc *sc, u_int16_t mc);
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extern void tws_init_obfl_q(struct tws_softc *sc);
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extern uint8_t tws_get_state(struct tws_softc *sc);
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extern void tws_assert_soft_reset(struct tws_softc *sc);
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extern boolean tws_ctlr_ready(struct tws_softc *sc);
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extern u_int16_t tws_poll4_response(struct tws_softc *sc, u_int64_t *mfa);
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extern int tws_setup_intr(struct tws_softc *sc, int irqs);
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extern int tws_teardown_intr(struct tws_softc *sc);
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int
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tws_cam_attach(struct tws_softc *sc)
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{
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struct cam_devq *devq;
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TWS_TRACE_DEBUG(sc, "entry", 0, sc);
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/* Create a device queue for sim */
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/*
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* if the user sets cam depth to less than 1
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* cam may get confused
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*/
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if ( tws_cam_depth < 1 )
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tws_cam_depth = 1;
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if ( tws_cam_depth > (tws_queue_depth - TWS_RESERVED_REQS) )
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tws_cam_depth = tws_queue_depth - TWS_RESERVED_REQS;
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TWS_TRACE_DEBUG(sc, "depths,ctlr,cam", tws_queue_depth, tws_cam_depth);
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if ((devq = cam_simq_alloc(tws_cam_depth)) == NULL) {
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tws_log(sc, CAM_SIMQ_ALLOC);
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return(ENOMEM);
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}
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/*
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* Create a SIM entry. Though we can support tws_cam_depth
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* simultaneous requests, we claim to be able to handle only
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* (tws_cam_depth), so that we always have reserved requests
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* packet available to service ioctls and internal commands.
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*/
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sc->sim = cam_sim_alloc(tws_action, tws_poll, "tws", sc,
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device_get_unit(sc->tws_dev),
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&sc->sim_lock,
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tws_cam_depth, 1, devq);
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/* 1, 1, devq); */
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if (sc->sim == NULL) {
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cam_simq_free(devq);
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tws_log(sc, CAM_SIM_ALLOC);
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}
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/* Register the bus. */
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mtx_lock(&sc->sim_lock);
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if (xpt_bus_register(sc->sim,
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sc->tws_dev,
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0) != CAM_SUCCESS) {
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cam_sim_free(sc->sim, TRUE); /* passing true will free the devq */
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sc->sim = NULL; /* so cam_detach will not try to free it */
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mtx_unlock(&sc->sim_lock);
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tws_log(sc, TWS_XPT_BUS_REGISTER);
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return(ENXIO);
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}
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if (xpt_create_path(&sc->path, NULL, cam_sim_path(sc->sim),
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CAM_TARGET_WILDCARD,
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CAM_LUN_WILDCARD) != CAM_REQ_CMP) {
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xpt_bus_deregister(cam_sim_path(sc->sim));
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/* Passing TRUE to cam_sim_free will free the devq as well. */
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cam_sim_free(sc->sim, TRUE);
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tws_log(sc, TWS_XPT_CREATE_PATH);
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mtx_unlock(&sc->sim_lock);
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return(ENXIO);
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}
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mtx_unlock(&sc->sim_lock);
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return(0);
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}
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void
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tws_cam_detach(struct tws_softc *sc)
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{
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TWS_TRACE_DEBUG(sc, "entry", 0, 0);
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mtx_lock(&sc->sim_lock);
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if (sc->path)
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xpt_free_path(sc->path);
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if (sc->sim) {
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xpt_bus_deregister(cam_sim_path(sc->sim));
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cam_sim_free(sc->sim, TRUE);
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}
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mtx_unlock(&sc->sim_lock);
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}
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int
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tws_bus_scan(struct tws_softc *sc)
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{
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union ccb *ccb;
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TWS_TRACE_DEBUG(sc, "entry", sc, 0);
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if (!(sc->sim))
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return(ENXIO);
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ccb = xpt_alloc_ccb();
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mtx_lock(&sc->sim_lock);
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if (xpt_create_path(&ccb->ccb_h.path, NULL, cam_sim_path(sc->sim),
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CAM_TARGET_WILDCARD, CAM_LUN_WILDCARD) != CAM_REQ_CMP) {
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mtx_unlock(&sc->sim_lock);
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xpt_free_ccb(ccb);
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return(EIO);
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}
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xpt_rescan(ccb);
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mtx_unlock(&sc->sim_lock);
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return(0);
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}
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static void
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tws_action(struct cam_sim *sim, union ccb *ccb)
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{
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struct tws_softc *sc = (struct tws_softc *)cam_sim_softc(sim);
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switch( ccb->ccb_h.func_code ) {
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case XPT_SCSI_IO:
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{
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if ( tws_execute_scsi(sc, ccb) )
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TWS_TRACE_DEBUG(sc, "execute scsi failed", 0, 0);
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break;
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}
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case XPT_ABORT:
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{
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TWS_TRACE_DEBUG(sc, "abort i/o", 0, 0);
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ccb->ccb_h.status = CAM_UA_ABORT;
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xpt_done(ccb);
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break;
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}
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case XPT_RESET_BUS:
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{
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TWS_TRACE_DEBUG(sc, "reset bus", sim, ccb);
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break;
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}
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case XPT_SET_TRAN_SETTINGS:
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{
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TWS_TRACE_DEBUG(sc, "set tran settings", sim, ccb);
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ccb->ccb_h.status = CAM_FUNC_NOTAVAIL;
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xpt_done(ccb);
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break;
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}
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case XPT_GET_TRAN_SETTINGS:
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{
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TWS_TRACE_DEBUG(sc, "get tran settings", sim, ccb);
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ccb->cts.protocol = PROTO_SCSI;
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ccb->cts.protocol_version = SCSI_REV_2;
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ccb->cts.transport = XPORT_SPI;
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ccb->cts.transport_version = 2;
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ccb->cts.xport_specific.spi.valid = CTS_SPI_VALID_DISC;
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ccb->cts.xport_specific.spi.flags = CTS_SPI_FLAGS_DISC_ENB;
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ccb->cts.proto_specific.scsi.valid = CTS_SCSI_VALID_TQ;
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ccb->cts.proto_specific.scsi.flags = CTS_SCSI_FLAGS_TAG_ENB;
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ccb->ccb_h.status = CAM_REQ_CMP;
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xpt_done(ccb);
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break;
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}
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case XPT_CALC_GEOMETRY:
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{
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TWS_TRACE_DEBUG(sc, "calc geometry(ccb,block-size)", ccb,
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ccb->ccg.block_size);
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cam_calc_geometry(&ccb->ccg, 1/* extended */);
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xpt_done(ccb);
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break;
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}
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case XPT_PATH_INQ:
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{
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TWS_TRACE_DEBUG(sc, "path inquiry", sim, ccb);
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ccb->cpi.version_num = 1;
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ccb->cpi.hba_inquiry = 0;
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ccb->cpi.target_sprt = 0;
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ccb->cpi.hba_misc = 0;
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ccb->cpi.hba_eng_cnt = 0;
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ccb->cpi.max_target = TWS_MAX_NUM_UNITS;
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ccb->cpi.max_lun = TWS_MAX_NUM_LUNS - 1;
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ccb->cpi.unit_number = cam_sim_unit(sim);
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ccb->cpi.bus_id = cam_sim_bus(sim);
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ccb->cpi.initiator_id = TWS_SCSI_INITIATOR_ID;
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ccb->cpi.base_transfer_speed = 6000000;
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strlcpy(ccb->cpi.sim_vid, "FreeBSD", SIM_IDLEN);
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strlcpy(ccb->cpi.hba_vid, "3ware", HBA_IDLEN);
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strlcpy(ccb->cpi.dev_name, cam_sim_name(sim), DEV_IDLEN);
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ccb->cpi.transport = XPORT_SPI;
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ccb->cpi.transport_version = 2;
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ccb->cpi.protocol = PROTO_SCSI;
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ccb->cpi.protocol_version = SCSI_REV_2;
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ccb->cpi.maxio = TWS_MAX_IO_SIZE;
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ccb->ccb_h.status = CAM_REQ_CMP;
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xpt_done(ccb);
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break;
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}
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default:
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TWS_TRACE_DEBUG(sc, "default", sim, ccb);
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ccb->ccb_h.status = CAM_REQ_INVALID;
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xpt_done(ccb);
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break;
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}
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}
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static void
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tws_scsi_complete(struct tws_request *req)
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{
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struct tws_softc *sc = req->sc;
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mtx_lock(&sc->q_lock);
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tws_q_remove_request(sc, req, TWS_BUSY_Q);
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mtx_unlock(&sc->q_lock);
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callout_stop(&req->timeout);
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tws_unmap_request(req->sc, req);
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req->ccb_ptr->ccb_h.status = CAM_REQ_CMP;
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mtx_lock(&sc->sim_lock);
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xpt_done(req->ccb_ptr);
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mtx_unlock(&sc->sim_lock);
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mtx_lock(&sc->q_lock);
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tws_q_insert_tail(sc, req, TWS_FREE_Q);
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mtx_unlock(&sc->q_lock);
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}
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void
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tws_getset_param_complete(struct tws_request *req)
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{
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struct tws_softc *sc = req->sc;
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TWS_TRACE_DEBUG(sc, "getset complete", req, req->request_id);
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callout_stop(&req->timeout);
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tws_unmap_request(sc, req);
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free(req->data, M_TWS);
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req->state = TWS_REQ_STATE_FREE;
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}
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void
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tws_aen_complete(struct tws_request *req)
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{
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struct tws_softc *sc = req->sc;
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struct tws_command_header *sense;
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struct tws_event_packet event;
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u_int16_t aen_code=0;
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TWS_TRACE_DEBUG(sc, "aen complete", 0, req->request_id);
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callout_stop(&req->timeout);
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tws_unmap_request(sc, req);
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sense = (struct tws_command_header *)req->data;
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TWS_TRACE_DEBUG(sc,"sense code, key",sense->sense_data[0],
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sense->sense_data[2]);
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TWS_TRACE_DEBUG(sc,"sense rid, seve",sense->header_desc.request_id,
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sense->status_block.res__severity);
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TWS_TRACE_DEBUG(sc,"sense srcnum, error",sense->status_block.srcnum,
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sense->status_block.error);
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TWS_TRACE_DEBUG(sc,"sense shdr, ssense",sense->header_desc.size_header,
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sense->header_desc.size_sense);
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aen_code = sense->status_block.error;
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switch ( aen_code ) {
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case TWS_AEN_SYNC_TIME_WITH_HOST :
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tws_aen_synctime_with_host(sc);
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break;
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case TWS_AEN_QUEUE_EMPTY :
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break;
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default :
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bzero(&event, sizeof(struct tws_event_packet));
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event.sequence_id = sc->seq_id;
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event.time_stamp_sec = (u_int32_t)TWS_LOCAL_TIME;
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event.aen_code = sense->status_block.error;
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event.severity = sense->status_block.res__severity & 0x7;
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event.event_src = TWS_SRC_CTRL_EVENT;
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strcpy(event.severity_str, tws_sev_str[event.severity]);
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event.retrieved = TWS_AEN_NOT_RETRIEVED;
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bcopy(sense->err_specific_desc, event.parameter_data,
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TWS_ERROR_SPECIFIC_DESC_LEN);
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event.parameter_data[TWS_ERROR_SPECIFIC_DESC_LEN - 1] = '\0';
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event.parameter_len = (u_int8_t)strlen(event.parameter_data)+1;
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if ( event.parameter_len < TWS_ERROR_SPECIFIC_DESC_LEN ) {
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event.parameter_len += ((u_int8_t)strlen(event.parameter_data +
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event.parameter_len) + 1);
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}
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device_printf(sc->tws_dev, "%s: (0x%02X: 0x%04X): %s: %s\n",
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event.severity_str,
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event.event_src,
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event.aen_code,
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event.parameter_data +
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(strlen(event.parameter_data) + 1),
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event.parameter_data);
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mtx_lock(&sc->gen_lock);
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tws_circular_aenq_insert(sc, &sc->aen_q, &event);
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sc->seq_id++;
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mtx_unlock(&sc->gen_lock);
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break;
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}
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|
|
free(req->data, M_TWS);
|
|
|
|
req->state = TWS_REQ_STATE_FREE;
|
|
|
|
if ( aen_code != TWS_AEN_QUEUE_EMPTY ) {
|
|
/* timeout(tws_fetch_aen, sc, 1);*/
|
|
sc->stats.num_aens++;
|
|
tws_fetch_aen((void *)sc);
|
|
}
|
|
}
|
|
|
|
void
|
|
tws_cmd_complete(struct tws_request *req)
|
|
{
|
|
struct tws_softc *sc = req->sc;
|
|
|
|
callout_stop(&req->timeout);
|
|
tws_unmap_request(sc, req);
|
|
}
|
|
|
|
static void
|
|
tws_err_complete(struct tws_softc *sc, u_int64_t mfa)
|
|
{
|
|
struct tws_command_header *hdr;
|
|
struct tws_sense *sen;
|
|
struct tws_request *req;
|
|
u_int16_t req_id;
|
|
u_int32_t reg, status;
|
|
|
|
if ( !mfa ) {
|
|
TWS_TRACE_DEBUG(sc, "null mfa", 0, mfa);
|
|
return;
|
|
} else {
|
|
/* lookup the sense */
|
|
sen = tws_find_sense_from_mfa(sc, mfa);
|
|
if ( sen == NULL ) {
|
|
TWS_TRACE_DEBUG(sc, "found null req", 0, mfa);
|
|
return;
|
|
}
|
|
hdr = sen->hdr;
|
|
TWS_TRACE_DEBUG(sc, "sen, hdr", sen, hdr);
|
|
req_id = hdr->header_desc.request_id;
|
|
req = &sc->reqs[req_id];
|
|
TWS_TRACE_DEBUG(sc, "req, id", req, req_id);
|
|
if ( req->error_code != TWS_REQ_RET_SUBMIT_SUCCESS )
|
|
TWS_TRACE_DEBUG(sc, "submit failure?", 0, req->error_code);
|
|
}
|
|
|
|
switch (req->type) {
|
|
case TWS_REQ_TYPE_PASSTHRU :
|
|
tws_passthru_err_complete(req, hdr);
|
|
break;
|
|
case TWS_REQ_TYPE_GETSET_PARAM :
|
|
tws_getset_param_complete(req);
|
|
break;
|
|
case TWS_REQ_TYPE_SCSI_IO :
|
|
tws_scsi_err_complete(req, hdr);
|
|
break;
|
|
|
|
}
|
|
|
|
mtx_lock(&sc->io_lock);
|
|
hdr->header_desc.size_header = 128;
|
|
reg = (u_int32_t)( mfa>>32);
|
|
tws_write_reg(sc, TWS_I2O0_HOBQPH, reg, 4);
|
|
reg = (u_int32_t)(mfa);
|
|
tws_write_reg(sc, TWS_I2O0_HOBQPL, reg, 4);
|
|
|
|
status = tws_read_reg(sc, TWS_I2O0_STATUS, 4);
|
|
if ( status & TWS_BIT13 ) {
|
|
device_printf(sc->tws_dev, "OBFL Overrun\n");
|
|
sc->obfl_q_overrun = true;
|
|
}
|
|
mtx_unlock(&sc->io_lock);
|
|
}
|
|
|
|
static void
|
|
tws_scsi_err_complete(struct tws_request *req, struct tws_command_header *hdr)
|
|
{
|
|
u_int8_t *sense_data;
|
|
struct tws_softc *sc = req->sc;
|
|
union ccb *ccb = req->ccb_ptr;
|
|
|
|
TWS_TRACE_DEBUG(sc, "sbe, cmd_status", hdr->status_block.error,
|
|
req->cmd_pkt->cmd.pkt_a.status);
|
|
if ( hdr->status_block.error == TWS_ERROR_LOGICAL_UNIT_NOT_SUPPORTED ||
|
|
hdr->status_block.error == TWS_ERROR_UNIT_OFFLINE ) {
|
|
if ( ccb->ccb_h.target_lun ) {
|
|
TWS_TRACE_DEBUG(sc, "invalid lun error",0,0);
|
|
ccb->ccb_h.status |= CAM_DEV_NOT_THERE;
|
|
} else {
|
|
TWS_TRACE_DEBUG(sc, "invalid target error",0,0);
|
|
ccb->ccb_h.status |= CAM_SEL_TIMEOUT;
|
|
}
|
|
|
|
} else {
|
|
TWS_TRACE_DEBUG(sc, "scsi status error",0,0);
|
|
ccb->ccb_h.status |= CAM_SCSI_STATUS_ERROR;
|
|
if (((ccb->csio.cdb_io.cdb_bytes[0] == 0x1A) &&
|
|
(hdr->status_block.error == TWS_ERROR_NOT_SUPPORTED))) {
|
|
ccb->ccb_h.status |= CAM_SCSI_STATUS_ERROR | CAM_AUTOSNS_VALID;
|
|
TWS_TRACE_DEBUG(sc, "page mode not supported",0,0);
|
|
}
|
|
}
|
|
|
|
/* if there were no error simply mark complete error */
|
|
if (ccb->ccb_h.status == 0)
|
|
ccb->ccb_h.status = CAM_REQ_CMP_ERR;
|
|
|
|
sense_data = (u_int8_t *)&ccb->csio.sense_data;
|
|
if (sense_data) {
|
|
memcpy(sense_data, hdr->sense_data, TWS_SENSE_DATA_LENGTH );
|
|
ccb->csio.sense_len = TWS_SENSE_DATA_LENGTH;
|
|
ccb->ccb_h.status |= CAM_AUTOSNS_VALID;
|
|
}
|
|
ccb->csio.scsi_status = req->cmd_pkt->cmd.pkt_a.status;
|
|
|
|
ccb->ccb_h.status &= ~CAM_SIM_QUEUED;
|
|
mtx_lock(&sc->sim_lock);
|
|
xpt_done(ccb);
|
|
mtx_unlock(&sc->sim_lock);
|
|
|
|
callout_stop(&req->timeout);
|
|
tws_unmap_request(req->sc, req);
|
|
mtx_lock(&sc->q_lock);
|
|
tws_q_remove_request(sc, req, TWS_BUSY_Q);
|
|
tws_q_insert_tail(sc, req, TWS_FREE_Q);
|
|
mtx_unlock(&sc->q_lock);
|
|
}
|
|
|
|
static void
|
|
tws_passthru_err_complete(struct tws_request *req,
|
|
struct tws_command_header *hdr)
|
|
{
|
|
TWS_TRACE_DEBUG(req->sc, "entry", hdr, req->request_id);
|
|
req->error_code = hdr->status_block.error;
|
|
memcpy(&(req->cmd_pkt->hdr), hdr, sizeof(struct tws_command_header));
|
|
tws_passthru_complete(req);
|
|
}
|
|
|
|
static void
|
|
tws_drain_busy_queue(struct tws_softc *sc)
|
|
{
|
|
struct tws_request *req;
|
|
union ccb *ccb;
|
|
TWS_TRACE_DEBUG(sc, "entry", 0, 0);
|
|
|
|
mtx_lock(&sc->q_lock);
|
|
req = tws_q_remove_tail(sc, TWS_BUSY_Q);
|
|
mtx_unlock(&sc->q_lock);
|
|
while ( req ) {
|
|
TWS_TRACE_DEBUG(sc, "moved to TWS_COMPLETE_Q", 0, req->request_id);
|
|
callout_stop(&req->timeout);
|
|
|
|
req->error_code = TWS_REQ_RET_RESET;
|
|
ccb = (union ccb *)(req->ccb_ptr);
|
|
|
|
ccb->ccb_h.status &= ~CAM_SIM_QUEUED;
|
|
ccb->ccb_h.status |= CAM_REQUEUE_REQ;
|
|
ccb->ccb_h.status |= CAM_SCSI_BUS_RESET;
|
|
|
|
tws_unmap_request(req->sc, req);
|
|
|
|
mtx_lock(&sc->sim_lock);
|
|
xpt_done(req->ccb_ptr);
|
|
mtx_unlock(&sc->sim_lock);
|
|
|
|
mtx_lock(&sc->q_lock);
|
|
tws_q_insert_tail(sc, req, TWS_FREE_Q);
|
|
req = tws_q_remove_tail(sc, TWS_BUSY_Q);
|
|
mtx_unlock(&sc->q_lock);
|
|
}
|
|
}
|
|
|
|
static void
|
|
tws_drain_reserved_reqs(struct tws_softc *sc)
|
|
{
|
|
struct tws_request *r;
|
|
|
|
r = &sc->reqs[TWS_REQ_TYPE_AEN_FETCH];
|
|
if ( r->state != TWS_REQ_STATE_FREE ) {
|
|
TWS_TRACE_DEBUG(sc, "reset aen req", 0, 0);
|
|
callout_stop(&r->timeout);
|
|
tws_unmap_request(sc, r);
|
|
free(r->data, M_TWS);
|
|
r->state = TWS_REQ_STATE_FREE;
|
|
r->error_code = TWS_REQ_RET_RESET;
|
|
}
|
|
|
|
r = &sc->reqs[TWS_REQ_TYPE_PASSTHRU];
|
|
if ( r->state == TWS_REQ_STATE_BUSY ) {
|
|
TWS_TRACE_DEBUG(sc, "reset passthru req", 0, 0);
|
|
r->error_code = TWS_REQ_RET_RESET;
|
|
}
|
|
|
|
r = &sc->reqs[TWS_REQ_TYPE_GETSET_PARAM];
|
|
if ( r->state != TWS_REQ_STATE_FREE ) {
|
|
TWS_TRACE_DEBUG(sc, "reset setparam req", 0, 0);
|
|
callout_stop(&r->timeout);
|
|
tws_unmap_request(sc, r);
|
|
free(r->data, M_TWS);
|
|
r->state = TWS_REQ_STATE_FREE;
|
|
r->error_code = TWS_REQ_RET_RESET;
|
|
}
|
|
}
|
|
|
|
static void
|
|
tws_drain_response_queue(struct tws_softc *sc)
|
|
{
|
|
u_int16_t req_id;
|
|
u_int64_t mfa;
|
|
while ( tws_get_response(sc, &req_id, &mfa) );
|
|
}
|
|
|
|
static int32_t
|
|
tws_execute_scsi(struct tws_softc *sc, union ccb *ccb)
|
|
{
|
|
struct tws_command_packet *cmd_pkt;
|
|
struct tws_request *req;
|
|
struct ccb_hdr *ccb_h = &(ccb->ccb_h);
|
|
struct ccb_scsiio *csio = &(ccb->csio);
|
|
int error;
|
|
u_int16_t lun;
|
|
|
|
mtx_assert(&sc->sim_lock, MA_OWNED);
|
|
if (ccb_h->target_id >= TWS_MAX_NUM_UNITS) {
|
|
TWS_TRACE_DEBUG(sc, "traget id too big", ccb_h->target_id, ccb_h->target_lun);
|
|
ccb_h->status |= CAM_TID_INVALID;
|
|
xpt_done(ccb);
|
|
return(0);
|
|
}
|
|
if (ccb_h->target_lun >= TWS_MAX_NUM_LUNS) {
|
|
TWS_TRACE_DEBUG(sc, "target lun 2 big", ccb_h->target_id, ccb_h->target_lun);
|
|
ccb_h->status |= CAM_LUN_INVALID;
|
|
xpt_done(ccb);
|
|
return(0);
|
|
}
|
|
|
|
if(ccb_h->flags & CAM_CDB_PHYS) {
|
|
TWS_TRACE_DEBUG(sc, "cdb phy", ccb_h->target_id, ccb_h->target_lun);
|
|
ccb_h->status = CAM_REQ_INVALID;
|
|
xpt_done(ccb);
|
|
return(0);
|
|
}
|
|
|
|
/*
|
|
* We are going to work on this request. Mark it as enqueued (though
|
|
* we don't actually queue it...)
|
|
*/
|
|
ccb_h->status |= CAM_SIM_QUEUED;
|
|
|
|
req = tws_get_request(sc, TWS_REQ_TYPE_SCSI_IO);
|
|
if ( !req ) {
|
|
TWS_TRACE_DEBUG(sc, "no reqs", ccb_h->target_id, ccb_h->target_lun);
|
|
ccb_h->status |= CAM_REQUEUE_REQ;
|
|
xpt_done(ccb);
|
|
return(0);
|
|
}
|
|
|
|
if((ccb_h->flags & CAM_DIR_MASK) != CAM_DIR_NONE) {
|
|
if(ccb_h->flags & CAM_DIR_IN)
|
|
req->flags |= TWS_DIR_IN;
|
|
if(ccb_h->flags & CAM_DIR_OUT)
|
|
req->flags |= TWS_DIR_OUT;
|
|
} else {
|
|
req->flags = TWS_DIR_NONE; /* no data */
|
|
}
|
|
|
|
req->type = TWS_REQ_TYPE_SCSI_IO;
|
|
req->cb = tws_scsi_complete;
|
|
|
|
cmd_pkt = req->cmd_pkt;
|
|
/* cmd_pkt->hdr.header_desc.size_header = 128; */
|
|
cmd_pkt->cmd.pkt_a.res__opcode = TWS_FW_CMD_EXECUTE_SCSI;
|
|
cmd_pkt->cmd.pkt_a.unit = ccb_h->target_id;
|
|
cmd_pkt->cmd.pkt_a.status = 0;
|
|
cmd_pkt->cmd.pkt_a.sgl_offset = 16;
|
|
|
|
/* lower nibble */
|
|
lun = ccb_h->target_lun & 0XF;
|
|
lun = lun << 12;
|
|
cmd_pkt->cmd.pkt_a.lun_l4__req_id = lun | req->request_id;
|
|
/* upper nibble */
|
|
lun = ccb_h->target_lun & 0XF0;
|
|
lun = lun << 8;
|
|
cmd_pkt->cmd.pkt_a.lun_h4__sgl_entries = lun;
|
|
|
|
#ifdef TWS_DEBUG
|
|
if ( csio->cdb_len > 16 )
|
|
TWS_TRACE(sc, "cdb len too big", ccb_h->target_id, csio->cdb_len);
|
|
#endif
|
|
|
|
if(ccb_h->flags & CAM_CDB_POINTER)
|
|
bcopy(csio->cdb_io.cdb_ptr, cmd_pkt->cmd.pkt_a.cdb, csio->cdb_len);
|
|
else
|
|
bcopy(csio->cdb_io.cdb_bytes, cmd_pkt->cmd.pkt_a.cdb, csio->cdb_len);
|
|
|
|
req->data = ccb;
|
|
req->flags |= TWS_DATA_CCB;
|
|
/* save ccb ptr */
|
|
req->ccb_ptr = ccb;
|
|
/*
|
|
* tws_map_load_data_callback will fill in the SGL,
|
|
* and submit the I/O.
|
|
*/
|
|
sc->stats.scsi_ios++;
|
|
callout_reset_sbt(&req->timeout, SBT_1MS * ccb->ccb_h.timeout, 0,
|
|
tws_timeout, req, 0);
|
|
error = tws_map_request(sc, req);
|
|
return(error);
|
|
}
|
|
|
|
int
|
|
tws_send_scsi_cmd(struct tws_softc *sc, int cmd)
|
|
{
|
|
struct tws_request *req;
|
|
struct tws_command_packet *cmd_pkt;
|
|
int error;
|
|
|
|
TWS_TRACE_DEBUG(sc, "entry",sc, cmd);
|
|
req = tws_get_request(sc, TWS_REQ_TYPE_AEN_FETCH);
|
|
|
|
if ( req == NULL )
|
|
return(ENOMEM);
|
|
|
|
req->cb = tws_aen_complete;
|
|
|
|
cmd_pkt = req->cmd_pkt;
|
|
cmd_pkt->cmd.pkt_a.res__opcode = TWS_FW_CMD_EXECUTE_SCSI;
|
|
cmd_pkt->cmd.pkt_a.status = 0;
|
|
cmd_pkt->cmd.pkt_a.unit = 0;
|
|
cmd_pkt->cmd.pkt_a.sgl_offset = 16;
|
|
cmd_pkt->cmd.pkt_a.lun_l4__req_id = req->request_id;
|
|
|
|
cmd_pkt->cmd.pkt_a.cdb[0] = (u_int8_t)cmd;
|
|
cmd_pkt->cmd.pkt_a.cdb[4] = 128;
|
|
|
|
req->length = TWS_SECTOR_SIZE;
|
|
req->data = malloc(TWS_SECTOR_SIZE, M_TWS, M_NOWAIT);
|
|
if ( req->data == NULL )
|
|
return(ENOMEM);
|
|
bzero(req->data, TWS_SECTOR_SIZE);
|
|
req->flags = TWS_DIR_IN;
|
|
|
|
callout_reset(&req->timeout, (TWS_IO_TIMEOUT * hz), tws_timeout, req);
|
|
error = tws_map_request(sc, req);
|
|
return(error);
|
|
|
|
}
|
|
|
|
int
|
|
tws_set_param(struct tws_softc *sc, u_int32_t table_id, u_int32_t param_id,
|
|
u_int32_t param_size, void *data)
|
|
{
|
|
struct tws_request *req;
|
|
struct tws_command_packet *cmd_pkt;
|
|
union tws_command_giga *cmd;
|
|
struct tws_getset_param *param;
|
|
int error;
|
|
|
|
req = tws_get_request(sc, TWS_REQ_TYPE_GETSET_PARAM);
|
|
if ( req == NULL ) {
|
|
TWS_TRACE_DEBUG(sc, "null req", 0, 0);
|
|
return(ENOMEM);
|
|
}
|
|
|
|
req->length = TWS_SECTOR_SIZE;
|
|
req->data = malloc(TWS_SECTOR_SIZE, M_TWS, M_NOWAIT);
|
|
if ( req->data == NULL )
|
|
return(ENOMEM);
|
|
bzero(req->data, TWS_SECTOR_SIZE);
|
|
param = (struct tws_getset_param *)req->data;
|
|
|
|
req->cb = tws_getset_param_complete;
|
|
req->flags = TWS_DIR_OUT;
|
|
cmd_pkt = req->cmd_pkt;
|
|
|
|
cmd = &cmd_pkt->cmd.pkt_g;
|
|
cmd->param.sgl_off__opcode =
|
|
BUILD_SGL_OFF__OPCODE(2, TWS_FW_CMD_SET_PARAM);
|
|
cmd->param.request_id = (u_int8_t)req->request_id;
|
|
cmd->param.host_id__unit = 0;
|
|
cmd->param.param_count = 1;
|
|
cmd->param.size = 2; /* map routine will add sgls */
|
|
|
|
/* Specify which parameter we want to set. */
|
|
param->table_id = (table_id | TWS_9K_PARAM_DESCRIPTOR);
|
|
param->parameter_id = (u_int8_t)(param_id);
|
|
param->parameter_size_bytes = (u_int16_t)param_size;
|
|
memcpy(param->data, data, param_size);
|
|
|
|
callout_reset(&req->timeout, (TWS_IOCTL_TIMEOUT * hz), tws_timeout, req);
|
|
error = tws_map_request(sc, req);
|
|
return(error);
|
|
|
|
}
|
|
|
|
int
|
|
tws_get_param(struct tws_softc *sc, u_int32_t table_id, u_int32_t param_id,
|
|
u_int32_t param_size, void *data)
|
|
{
|
|
struct tws_request *req;
|
|
struct tws_command_packet *cmd_pkt;
|
|
union tws_command_giga *cmd;
|
|
struct tws_getset_param *param;
|
|
u_int16_t reqid;
|
|
u_int64_t mfa;
|
|
int error = SUCCESS;
|
|
|
|
req = tws_get_request(sc, TWS_REQ_TYPE_GETSET_PARAM);
|
|
if ( req == NULL ) {
|
|
TWS_TRACE_DEBUG(sc, "null req", 0, 0);
|
|
return(FAILURE);
|
|
}
|
|
|
|
req->length = TWS_SECTOR_SIZE;
|
|
req->data = malloc(TWS_SECTOR_SIZE, M_TWS, M_NOWAIT);
|
|
if ( req->data == NULL )
|
|
return(FAILURE);
|
|
bzero(req->data, TWS_SECTOR_SIZE);
|
|
param = (struct tws_getset_param *)req->data;
|
|
|
|
req->cb = NULL;
|
|
req->flags = TWS_DIR_IN;
|
|
cmd_pkt = req->cmd_pkt;
|
|
|
|
cmd = &cmd_pkt->cmd.pkt_g;
|
|
cmd->param.sgl_off__opcode =
|
|
BUILD_SGL_OFF__OPCODE(2, TWS_FW_CMD_GET_PARAM);
|
|
cmd->param.request_id = (u_int8_t)req->request_id;
|
|
cmd->param.host_id__unit = 0;
|
|
cmd->param.param_count = 1;
|
|
cmd->param.size = 2; /* map routine will add sgls */
|
|
|
|
/* Specify which parameter we want to set. */
|
|
param->table_id = (table_id | TWS_9K_PARAM_DESCRIPTOR);
|
|
param->parameter_id = (u_int8_t)(param_id);
|
|
param->parameter_size_bytes = (u_int16_t)param_size;
|
|
|
|
error = tws_map_request(sc, req);
|
|
if (!error) {
|
|
reqid = tws_poll4_response(sc, &mfa);
|
|
tws_unmap_request(sc, req);
|
|
|
|
if ( reqid == TWS_REQ_TYPE_GETSET_PARAM ) {
|
|
memcpy(data, param->data, param_size);
|
|
} else {
|
|
error = FAILURE;
|
|
}
|
|
}
|
|
|
|
free(req->data, M_TWS);
|
|
req->state = TWS_REQ_STATE_FREE;
|
|
return(error);
|
|
|
|
}
|
|
|
|
void
|
|
tws_unmap_request(struct tws_softc *sc, struct tws_request *req)
|
|
{
|
|
if (req->data != NULL) {
|
|
if ( req->flags & TWS_DIR_IN )
|
|
bus_dmamap_sync(sc->data_tag, req->dma_map,
|
|
BUS_DMASYNC_POSTREAD);
|
|
if ( req->flags & TWS_DIR_OUT )
|
|
bus_dmamap_sync(sc->data_tag, req->dma_map,
|
|
BUS_DMASYNC_POSTWRITE);
|
|
mtx_lock(&sc->io_lock);
|
|
bus_dmamap_unload(sc->data_tag, req->dma_map);
|
|
mtx_unlock(&sc->io_lock);
|
|
}
|
|
}
|
|
|
|
int32_t
|
|
tws_map_request(struct tws_softc *sc, struct tws_request *req)
|
|
{
|
|
int32_t error = 0;
|
|
|
|
/* If the command involves data, map that too. */
|
|
if (req->data != NULL) {
|
|
int my_flags = ((req->type == TWS_REQ_TYPE_SCSI_IO) ? BUS_DMA_WAITOK : BUS_DMA_NOWAIT);
|
|
|
|
/*
|
|
* Map the data buffer into bus space and build the SG list.
|
|
*/
|
|
mtx_lock(&sc->io_lock);
|
|
if (req->flags & TWS_DATA_CCB)
|
|
error = bus_dmamap_load_ccb(sc->data_tag, req->dma_map,
|
|
req->data,
|
|
tws_dmamap_data_load_cbfn, req,
|
|
my_flags);
|
|
else
|
|
error = bus_dmamap_load(sc->data_tag, req->dma_map,
|
|
req->data, req->length,
|
|
tws_dmamap_data_load_cbfn, req,
|
|
my_flags);
|
|
mtx_unlock(&sc->io_lock);
|
|
|
|
if (error == EINPROGRESS) {
|
|
TWS_TRACE(sc, "in progress", 0, error);
|
|
tws_freeze_simq(sc, req);
|
|
error = 0; // EINPROGRESS is not a fatal error.
|
|
}
|
|
} else { /* no data involved */
|
|
error = tws_submit_command(sc, req);
|
|
}
|
|
return(error);
|
|
}
|
|
|
|
static void
|
|
tws_dmamap_data_load_cbfn(void *arg, bus_dma_segment_t *segs,
|
|
int nseg, int error)
|
|
{
|
|
struct tws_request *req = (struct tws_request *)arg;
|
|
struct tws_softc *sc = req->sc;
|
|
u_int16_t sgls = nseg;
|
|
void *sgl_ptr;
|
|
struct tws_cmd_generic *gcmd;
|
|
|
|
if ( error ) {
|
|
TWS_TRACE(sc, "SOMETHING BAD HAPPENED! error = %d\n", error, 0);
|
|
}
|
|
|
|
if ( error == EFBIG ) {
|
|
TWS_TRACE(sc, "not enough data segs", 0, nseg);
|
|
req->error_code = error;
|
|
req->ccb_ptr->ccb_h.status = CAM_REQ_TOO_BIG;
|
|
return;
|
|
}
|
|
|
|
if ( req->flags & TWS_DIR_IN )
|
|
bus_dmamap_sync(req->sc->data_tag, req->dma_map,
|
|
BUS_DMASYNC_PREREAD);
|
|
if ( req->flags & TWS_DIR_OUT )
|
|
bus_dmamap_sync(req->sc->data_tag, req->dma_map,
|
|
BUS_DMASYNC_PREWRITE);
|
|
if ( segs ) {
|
|
if ( (req->type == TWS_REQ_TYPE_PASSTHRU &&
|
|
GET_OPCODE(req->cmd_pkt->cmd.pkt_a.res__opcode) !=
|
|
TWS_FW_CMD_EXECUTE_SCSI) ||
|
|
req->type == TWS_REQ_TYPE_GETSET_PARAM) {
|
|
gcmd = &req->cmd_pkt->cmd.pkt_g.generic;
|
|
sgl_ptr = (u_int32_t *)(gcmd) + gcmd->size;
|
|
gcmd->size += sgls *
|
|
((req->sc->is64bit && !tws_use_32bit_sgls) ? 4 : 2 );
|
|
tws_fill_sg_list(req->sc, (void *)segs, sgl_ptr, sgls);
|
|
|
|
} else {
|
|
tws_fill_sg_list(req->sc, (void *)segs,
|
|
(void *)&(req->cmd_pkt->cmd.pkt_a.sg_list), sgls);
|
|
req->cmd_pkt->cmd.pkt_a.lun_h4__sgl_entries |= sgls ;
|
|
}
|
|
}
|
|
|
|
req->error_code = tws_submit_command(req->sc, req);
|
|
|
|
}
|
|
|
|
static void
|
|
tws_fill_sg_list(struct tws_softc *sc, void *sgl_src, void *sgl_dest,
|
|
u_int16_t num_sgl_entries)
|
|
{
|
|
int i;
|
|
|
|
if ( sc->is64bit ) {
|
|
struct tws_sg_desc64 *sgl_s = (struct tws_sg_desc64 *)sgl_src;
|
|
|
|
if ( !tws_use_32bit_sgls ) {
|
|
struct tws_sg_desc64 *sgl_d = (struct tws_sg_desc64 *)sgl_dest;
|
|
if ( num_sgl_entries > TWS_MAX_64BIT_SG_ELEMENTS )
|
|
TWS_TRACE(sc, "64bit sg overflow", num_sgl_entries, 0);
|
|
for (i = 0; i < num_sgl_entries; i++) {
|
|
sgl_d[i].address = sgl_s->address;
|
|
sgl_d[i].length = sgl_s->length;
|
|
sgl_d[i].flag = 0;
|
|
sgl_d[i].reserved = 0;
|
|
sgl_s = (struct tws_sg_desc64 *) (((u_int8_t *)sgl_s) +
|
|
sizeof(bus_dma_segment_t));
|
|
}
|
|
} else {
|
|
struct tws_sg_desc32 *sgl_d = (struct tws_sg_desc32 *)sgl_dest;
|
|
if ( num_sgl_entries > TWS_MAX_32BIT_SG_ELEMENTS )
|
|
TWS_TRACE(sc, "32bit sg overflow", num_sgl_entries, 0);
|
|
for (i = 0; i < num_sgl_entries; i++) {
|
|
sgl_d[i].address = sgl_s->address;
|
|
sgl_d[i].length = sgl_s->length;
|
|
sgl_d[i].flag = 0;
|
|
sgl_s = (struct tws_sg_desc64 *) (((u_int8_t *)sgl_s) +
|
|
sizeof(bus_dma_segment_t));
|
|
}
|
|
}
|
|
} else {
|
|
struct tws_sg_desc32 *sgl_s = (struct tws_sg_desc32 *)sgl_src;
|
|
struct tws_sg_desc32 *sgl_d = (struct tws_sg_desc32 *)sgl_dest;
|
|
|
|
if ( num_sgl_entries > TWS_MAX_32BIT_SG_ELEMENTS )
|
|
TWS_TRACE(sc, "32bit sg overflow", num_sgl_entries, 0);
|
|
|
|
for (i = 0; i < num_sgl_entries; i++) {
|
|
sgl_d[i].address = sgl_s[i].address;
|
|
sgl_d[i].length = sgl_s[i].length;
|
|
sgl_d[i].flag = 0;
|
|
}
|
|
}
|
|
}
|
|
|
|
void
|
|
tws_intr(void *arg)
|
|
{
|
|
struct tws_softc *sc = (struct tws_softc *)arg;
|
|
u_int32_t histat=0, db=0;
|
|
|
|
if (!(sc)) {
|
|
device_printf(sc->tws_dev, "null softc!!!\n");
|
|
return;
|
|
}
|
|
|
|
if ( tws_get_state(sc) == TWS_RESET ) {
|
|
return;
|
|
}
|
|
|
|
if ( tws_get_state(sc) != TWS_ONLINE ) {
|
|
return;
|
|
}
|
|
|
|
sc->stats.num_intrs++;
|
|
histat = tws_read_reg(sc, TWS_I2O0_HISTAT, 4);
|
|
if ( histat & TWS_BIT2 ) {
|
|
TWS_TRACE_DEBUG(sc, "door bell :)", histat, TWS_I2O0_HISTAT);
|
|
db = tws_read_reg(sc, TWS_I2O0_IOBDB, 4);
|
|
if ( db & TWS_BIT21 ) {
|
|
tws_intr_attn_error(sc);
|
|
return;
|
|
}
|
|
if ( db & TWS_BIT18 ) {
|
|
tws_intr_attn_aen(sc);
|
|
}
|
|
}
|
|
|
|
if ( histat & TWS_BIT3 ) {
|
|
tws_intr_resp(sc);
|
|
}
|
|
}
|
|
|
|
static void
|
|
tws_intr_attn_aen(struct tws_softc *sc)
|
|
{
|
|
u_int32_t db=0;
|
|
|
|
/* maskoff db intrs until all the aens are fetched */
|
|
/* tws_disable_db_intr(sc); */
|
|
tws_fetch_aen((void *)sc);
|
|
tws_write_reg(sc, TWS_I2O0_HOBDBC, TWS_BIT18, 4);
|
|
db = tws_read_reg(sc, TWS_I2O0_IOBDB, 4);
|
|
|
|
}
|
|
|
|
static void
|
|
tws_intr_attn_error(struct tws_softc *sc)
|
|
{
|
|
u_int32_t db=0;
|
|
|
|
TWS_TRACE(sc, "attn error", 0, 0);
|
|
tws_write_reg(sc, TWS_I2O0_HOBDBC, ~0, 4);
|
|
db = tws_read_reg(sc, TWS_I2O0_IOBDB, 4);
|
|
device_printf(sc->tws_dev, "Micro controller error.\n");
|
|
tws_reset(sc);
|
|
}
|
|
|
|
static void
|
|
tws_intr_resp(struct tws_softc *sc)
|
|
{
|
|
u_int16_t req_id;
|
|
u_int64_t mfa;
|
|
|
|
while ( tws_get_response(sc, &req_id, &mfa) ) {
|
|
sc->stats.reqs_out++;
|
|
if ( req_id == TWS_INVALID_REQID ) {
|
|
TWS_TRACE_DEBUG(sc, "invalid req_id", mfa, req_id);
|
|
sc->stats.reqs_errored++;
|
|
tws_err_complete(sc, mfa);
|
|
continue;
|
|
}
|
|
sc->reqs[req_id].cb(&sc->reqs[req_id]);
|
|
}
|
|
|
|
}
|
|
|
|
static void
|
|
tws_poll(struct cam_sim *sim)
|
|
{
|
|
struct tws_softc *sc = (struct tws_softc *)cam_sim_softc(sim);
|
|
TWS_TRACE_DEBUG(sc, "entry", 0, 0);
|
|
tws_intr((void *) sc);
|
|
}
|
|
|
|
void
|
|
tws_timeout(void *arg)
|
|
{
|
|
struct tws_request *req = (struct tws_request *)arg;
|
|
struct tws_softc *sc = req->sc;
|
|
|
|
if ( req->error_code == TWS_REQ_RET_RESET ) {
|
|
return;
|
|
}
|
|
|
|
mtx_lock(&sc->gen_lock);
|
|
if ( req->error_code == TWS_REQ_RET_RESET ) {
|
|
mtx_unlock(&sc->gen_lock);
|
|
return;
|
|
}
|
|
|
|
if ( tws_get_state(sc) == TWS_RESET ) {
|
|
mtx_unlock(&sc->gen_lock);
|
|
return;
|
|
}
|
|
|
|
xpt_freeze_simq(sc->sim, 1);
|
|
|
|
tws_send_event(sc, TWS_RESET_START);
|
|
|
|
if (req->type == TWS_REQ_TYPE_SCSI_IO) {
|
|
device_printf(sc->tws_dev, "I/O Request timed out... Resetting controller\n");
|
|
} else if (req->type == TWS_REQ_TYPE_PASSTHRU) {
|
|
device_printf(sc->tws_dev, "IOCTL Request timed out... Resetting controller\n");
|
|
} else {
|
|
device_printf(sc->tws_dev, "Internal Request timed out... Resetting controller\n");
|
|
}
|
|
|
|
tws_assert_soft_reset(sc);
|
|
tws_turn_off_interrupts(sc);
|
|
tws_reset_cb( (void*) sc );
|
|
tws_reinit( (void*) sc );
|
|
|
|
// device_printf(sc->tws_dev, "Controller Reset complete!\n");
|
|
tws_send_event(sc, TWS_RESET_COMPLETE);
|
|
mtx_unlock(&sc->gen_lock);
|
|
|
|
xpt_release_simq(sc->sim, 1);
|
|
}
|
|
|
|
void
|
|
tws_reset(void *arg)
|
|
{
|
|
struct tws_softc *sc = (struct tws_softc *)arg;
|
|
|
|
mtx_lock(&sc->gen_lock);
|
|
if ( tws_get_state(sc) == TWS_RESET ) {
|
|
mtx_unlock(&sc->gen_lock);
|
|
return;
|
|
}
|
|
|
|
xpt_freeze_simq(sc->sim, 1);
|
|
|
|
tws_send_event(sc, TWS_RESET_START);
|
|
|
|
device_printf(sc->tws_dev, "Resetting controller\n");
|
|
|
|
tws_assert_soft_reset(sc);
|
|
tws_turn_off_interrupts(sc);
|
|
tws_reset_cb( (void*) sc );
|
|
tws_reinit( (void*) sc );
|
|
|
|
// device_printf(sc->tws_dev, "Controller Reset complete!\n");
|
|
tws_send_event(sc, TWS_RESET_COMPLETE);
|
|
mtx_unlock(&sc->gen_lock);
|
|
|
|
xpt_release_simq(sc->sim, 1);
|
|
}
|
|
|
|
static void
|
|
tws_reset_cb(void *arg)
|
|
{
|
|
struct tws_softc *sc = (struct tws_softc *)arg;
|
|
time_t endt;
|
|
int found = 0;
|
|
u_int32_t reg;
|
|
|
|
if ( tws_get_state(sc) != TWS_RESET ) {
|
|
return;
|
|
}
|
|
|
|
// device_printf(sc->tws_dev, "Draining Busy Queue\n");
|
|
tws_drain_busy_queue(sc);
|
|
// device_printf(sc->tws_dev, "Draining Reserved Reqs\n");
|
|
tws_drain_reserved_reqs(sc);
|
|
// device_printf(sc->tws_dev, "Draining Response Queue\n");
|
|
tws_drain_response_queue(sc);
|
|
|
|
// device_printf(sc->tws_dev, "Looking for controller ready flag...\n");
|
|
endt = TWS_LOCAL_TIME + TWS_POLL_TIMEOUT;
|
|
while ((TWS_LOCAL_TIME <= endt) && (!found)) {
|
|
reg = tws_read_reg(sc, TWS_I2O0_SCRPD3, 4);
|
|
if ( reg & TWS_BIT13 ) {
|
|
found = 1;
|
|
// device_printf(sc->tws_dev, " ... Got it!\n");
|
|
}
|
|
}
|
|
if ( !found )
|
|
device_printf(sc->tws_dev, " ... Controller ready flag NOT found!\n");
|
|
}
|
|
|
|
static void
|
|
tws_reinit(void *arg)
|
|
{
|
|
struct tws_softc *sc = (struct tws_softc *)arg;
|
|
int timeout_val=0;
|
|
int try=2;
|
|
int done=0;
|
|
|
|
// device_printf(sc->tws_dev, "Waiting for Controller Ready\n");
|
|
while ( !done && try ) {
|
|
if ( tws_ctlr_ready(sc) ) {
|
|
done = 1;
|
|
break;
|
|
} else {
|
|
timeout_val += 5;
|
|
if ( timeout_val >= TWS_RESET_TIMEOUT ) {
|
|
timeout_val = 0;
|
|
if ( try )
|
|
tws_assert_soft_reset(sc);
|
|
try--;
|
|
}
|
|
mtx_sleep(sc, &sc->gen_lock, 0, "tws_reinit", 5*hz);
|
|
}
|
|
}
|
|
|
|
if (!done) {
|
|
device_printf(sc->tws_dev, "FAILED to get Controller Ready!\n");
|
|
return;
|
|
}
|
|
|
|
sc->obfl_q_overrun = false;
|
|
// device_printf(sc->tws_dev, "Sending initConnect\n");
|
|
if ( tws_init_connect(sc, tws_queue_depth) ) {
|
|
TWS_TRACE_DEBUG(sc, "initConnect failed", 0, sc->is64bit);
|
|
}
|
|
tws_init_obfl_q(sc);
|
|
|
|
tws_turn_on_interrupts(sc);
|
|
|
|
wakeup_one(sc);
|
|
}
|
|
|
|
static void
|
|
tws_freeze_simq(struct tws_softc *sc, struct tws_request *req)
|
|
{
|
|
/* Only for IO commands */
|
|
if (req->type == TWS_REQ_TYPE_SCSI_IO) {
|
|
union ccb *ccb = (union ccb *)(req->ccb_ptr);
|
|
|
|
xpt_freeze_simq(sc->sim, 1);
|
|
ccb->ccb_h.status |= CAM_RELEASE_SIMQ;
|
|
ccb->ccb_h.status |= CAM_REQUEUE_REQ;
|
|
}
|
|
}
|
|
|
|
TUNABLE_INT("hw.tws.cam_depth", &tws_cam_depth);
|