402 lines
11 KiB
C
402 lines
11 KiB
C
/*
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* Copyright (c) 2010, LSI Corp.
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* All rights reserved.
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* Author : Manjunath Ranganathaiah
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* Support: freebsdraid@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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*
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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
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* the documentation and/or other materials provided with the
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* distribution.
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* 3. Neither the name of the <ORGANIZATION> nor the names of its
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* contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
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* COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
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* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
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* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
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* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF 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_hdm.h>
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#include <dev/tws/tws_services.h>
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#include <sys/time.h>
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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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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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struct tws_request *tws_q_remove_head(struct tws_softc *sc, u_int8_t q_type );
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void tws_q_insert_head(struct tws_softc *sc, struct tws_request *req,
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u_int8_t q_type );
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struct tws_request * tws_q_remove_tail(struct tws_softc *sc, u_int8_t q_type );
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void tws_print_stats(void *arg);
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struct tws_sense *tws_find_sense_from_mfa(struct tws_softc *sc, u_int64_t mfa);
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static struct error_desc array[] = {
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{ "Cannot add sysctl tree node", 0x2000, ERROR,
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"%s: (0x%02X: 0x%04X): %s:\n", "ERROR" },
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{ "Register window not available", 0x2001, ERROR,
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"%s: (0x%02X: 0x%04X): %s:\n", "ERROR" },
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{ "Can't allocate register window", 0x2002, ERROR,
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"%s: (0x%02X: 0x%04X): %s:\n", "ERROR" },
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{ "Can't allocate interrupt", 0x2003, ERROR,
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"%s: (0x%02X: 0x%04X): %s:\n", "ERROR" },
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{ "Can't set up interrupt", 0x2004, ERROR,
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"%s: (0x%02X: 0x%04X): %s:\n", "ERROR" },
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{ "Couldn't intialize CAM", 0x2007, ERROR,
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"%s: (0x%02X: 0x%04X): %s:\n", "ERROR" },
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{ "Couldn't create SIM device queue", 0x2100, ENOMEM,
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"%s: (0x%02X: 0x%04X): %s:\n", "ERROR" },
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{ "Unable to create SIM entry", 0x2101, ENOMEM,
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"%s: (0x%02X: 0x%04X): %s:\n", "ERROR" },
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{ "Unable to register the bus", 0x2102, ENXIO,
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"%s: (0x%02X: 0x%04X): %s:\n", "ERROR" },
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{ "Unable to create the path", 0x2103, ENXIO,
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"%s: (0x%02X: 0x%04X): %s:\n", "ERROR" },
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{ "Bus scan request to CAM failed", 0x2104, ENXIO,
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"%s: (0x%02X: 0x%04X): %s:\n", "ERROR" },
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{ "Unable to intialize the driver", 0x2008, ENXIO,
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"%s: (0x%02X: 0x%04X): %s:\n", "ERROR" },
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{ "Unable to intialize the controller", 0x2009, ENXIO,
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"%s: (0x%02X: 0x%04X): %s:\n", "ERROR" },
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};
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void
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tws_trace(const char *file, const char *fun, int linenum,
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struct tws_softc *sc, char *desc, u_int64_t val1, u_int64_t val2)
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{
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struct tws_trace_rec *rec = (struct tws_trace_rec *)sc->trace_q.q;
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volatile u_int16_t head, tail;
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char fmt[256];
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head = sc->trace_q.head;
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tail = sc->trace_q.tail;
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/*
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getnanotime(&rec[tail].ts);
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*/
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strncpy(rec[tail].fname, file, TWS_TRACE_FNAME_LEN);
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strncpy(rec[tail].func, fun, TWS_TRACE_FUNC_LEN);
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rec[tail].linenum = linenum;
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strncpy(rec[tail].desc, desc, TWS_TRACE_DESC_LEN);
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rec[tail].val1 = val1;
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rec[tail].val2 = val2;
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tail = (tail+1) % sc->trace_q.depth;
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if ( head == tail ) {
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sc->trace_q.overflow = 1;
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sc->trace_q.head = (head+1) % sc->trace_q.depth;
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}
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sc->trace_q.tail = tail;
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/*
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tws_circular_q_insert(sc, &sc->trace_q,
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&rec, sizeof(struct tws_trace_rec));
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*/
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if ( sc->is64bit )
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strcpy(fmt, "%05d:%s::%s :%s: 0x%016lx : 0x%016lx \n");
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else
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strcpy(fmt, "%05d:%s::%s :%s: 0x%016llx : 0x%016llx \n");
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/*
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printf("%05d:%s::%s :%s: 0x%016llx : 0x%016llx \n",
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linenum, file, fun, desc, val1, val2);
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*/
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printf(fmt, linenum, file, fun, desc, val1, val2);
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}
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void
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tws_log(struct tws_softc *sc, int index)
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{
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device_printf((sc)->tws_dev, array[index].fmt,
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array[index].error_str,
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array[index].error_code,
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array[index].severity_level,
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array[index].desc );
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}
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/* ----------- swap functions ----------- */
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u_int16_t
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tws_swap16(u_int16_t val)
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{
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return((val << 8) | (val >> 8));
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}
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u_int32_t
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tws_swap32(u_int32_t val)
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{
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return(((val << 24) | ((val << 8) & (0xFF0000)) |
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((val >> 8) & (0xFF00)) | (val >> 24)));
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}
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u_int64_t
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tws_swap64(u_int64_t val)
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{
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return((((u_int64_t)(tws_swap32(((u_int32_t *)(&(val)))[1]))) << 32) |
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((u_int32_t)(tws_swap32(((u_int32_t *)(&(val)))[0]))));
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}
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/* ----------- reg access ----------- */
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void
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tws_write_reg(struct tws_softc *sc, int offset,
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u_int32_t value, int size)
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{
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bus_space_tag_t bus_tag = sc->bus_tag;
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bus_space_handle_t bus_handle = sc->bus_handle;
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if (size == 4)
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bus_space_write_4(bus_tag, bus_handle, offset, value);
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else
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if (size == 2)
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bus_space_write_2(bus_tag, bus_handle, offset,
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(u_int16_t)value);
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else
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bus_space_write_1(bus_tag, bus_handle, offset, (u_int8_t)value);
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}
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u_int32_t
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tws_read_reg(struct tws_softc *sc, int offset, int size)
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{
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bus_space_tag_t bus_tag = sc->bus_tag;
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bus_space_handle_t bus_handle = sc->bus_handle;
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if (size == 4)
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return((u_int32_t)bus_space_read_4(bus_tag, bus_handle, offset));
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else if (size == 2)
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return((u_int32_t)bus_space_read_2(bus_tag, bus_handle, offset));
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else
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return((u_int32_t)bus_space_read_1(bus_tag, bus_handle, offset));
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}
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/* --------------------- Q service --------------------- */
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/*
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* intialize q pointers with null.
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*/
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void
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tws_init_qs(struct tws_softc *sc)
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{
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mtx_lock(&sc->q_lock);
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for(int i=0;i<TWS_MAX_QS;i++) {
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sc->q_head[i] = NULL;
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sc->q_tail[i] = NULL;
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}
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mtx_unlock(&sc->q_lock);
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}
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/* called with lock held */
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static void
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tws_insert2_empty_q(struct tws_softc *sc, struct tws_request *req,
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u_int8_t q_type )
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{
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mtx_assert(&sc->q_lock, MA_OWNED);
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req->next = req->prev = NULL;
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sc->q_head[q_type] = sc->q_tail[q_type] = req;
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}
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/* called with lock held */
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void
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tws_q_insert_head(struct tws_softc *sc, struct tws_request *req,
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u_int8_t q_type )
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{
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mtx_assert(&sc->q_lock, MA_OWNED);
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if ( sc->q_head[q_type] == NULL ) {
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tws_insert2_empty_q(sc, req, q_type);
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} else {
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req->next = sc->q_head[q_type];
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req->prev = NULL;
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sc->q_head[q_type]->prev = req;
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sc->q_head[q_type] = req;
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}
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}
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/* called with lock held */
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void
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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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{
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mtx_assert(&sc->q_lock, MA_OWNED);
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if ( sc->q_tail[q_type] == NULL ) {
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tws_insert2_empty_q(sc, req, q_type);
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} else {
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req->prev = sc->q_tail[q_type];
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req->next = NULL;
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sc->q_tail[q_type]->next = req;
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sc->q_tail[q_type] = req;
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}
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}
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/* called with lock held */
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struct tws_request *
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tws_q_remove_head(struct tws_softc *sc, u_int8_t q_type )
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{
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struct tws_request *r;
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mtx_assert(&sc->q_lock, MA_OWNED);
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r = sc->q_head[q_type];
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if ( !r )
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return(NULL);
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if ( r->next == NULL && r->prev == NULL ) {
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/* last element */
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sc->q_head[q_type] = sc->q_tail[q_type] = NULL;
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} else {
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sc->q_head[q_type] = r->next;
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r->next->prev = NULL;
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r->next = NULL;
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r->prev = NULL;
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}
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return(r);
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}
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/* called with lock held */
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struct tws_request *
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tws_q_remove_tail(struct tws_softc *sc, u_int8_t q_type )
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{
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struct tws_request *r;
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mtx_assert(&sc->q_lock, MA_OWNED);
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r = sc->q_tail[q_type];
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if ( !r )
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return(NULL);
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if ( r->next == NULL && r->prev == NULL ) {
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/* last element */
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sc->q_head[q_type] = sc->q_tail[q_type] = NULL;
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} else {
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sc->q_tail[q_type] = r->prev;
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r->prev->next = NULL;
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r->next = NULL;
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r->prev = NULL;
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}
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return(r);
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}
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/* returns removed request if successful. return NULL otherwise */
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/* called with lock held */
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struct tws_request *
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tws_q_remove_request(struct tws_softc *sc, struct tws_request *req,
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u_int8_t q_type )
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{
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struct tws_request *r;
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mtx_assert(&sc->q_lock, MA_OWNED);
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if ( req == NULL ) {
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TWS_TRACE_DEBUG(sc, "null req", 0, q_type);
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return(NULL);
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}
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if ( req == sc->q_head[q_type] )
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return(tws_q_remove_head(sc, q_type));
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if ( req == sc->q_tail[q_type] )
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return(tws_q_remove_tail(sc, q_type));
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/* The given node is not at head or tail.
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* It's in the middle and there are more than
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* 2 elements on the q.
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*/
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if ( req->next == NULL || req->prev == NULL ) {
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TWS_TRACE_DEBUG(sc, "invalid req", 0, q_type);
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return(NULL);
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}
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/* debug only */
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r = sc->q_head[q_type];
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while ( r ) {
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if ( req == r )
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break;
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r = r->next;
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}
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if ( !r ) {
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TWS_TRACE_DEBUG(sc, "req not in q", 0, req->request_id);
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return(NULL);
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}
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/* debug end */
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req->prev->next = r->next;
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req->next->prev = r->prev;
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req->next = NULL;
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req->prev = NULL;
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return(req);
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}
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struct tws_sense *
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tws_find_sense_from_mfa(struct tws_softc *sc, u_int64_t mfa)
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{
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struct tws_sense *s;
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int i;
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TWS_TRACE_DEBUG(sc, "entry",sc,mfa);
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i = (mfa - sc->dma_mem_phys) / sizeof(struct tws_command_packet);
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if ( i>= 0 && i<tws_queue_depth) {
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s = &sc->sense_bufs[i];
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if ( mfa == s->hdr_pkt_phy )
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return(s);
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}
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TWS_TRACE_DEBUG(sc, "return null",0,mfa);
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return(NULL);
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}
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/* --------------------- Q service end --------------------- */
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/* --------------------- misc service start --------------------- */
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void
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tws_print_stats(void *arg)
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{
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struct tws_softc *sc = (struct tws_softc *)arg;
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TWS_TRACE(sc, "reqs(in, out)", sc->stats.reqs_in, sc->stats.reqs_out);
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TWS_TRACE(sc, "reqs(err, intrs)", sc->stats.reqs_errored
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, sc->stats.num_intrs);
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TWS_TRACE(sc, "reqs(ioctls, scsi)", sc->stats.ioctls
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, sc->stats.scsi_ios);
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timeout(tws_print_stats, sc, 300*hz);
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}
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/* --------------------- misc service end --------------------- */
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