536 lines
15 KiB
C
536 lines
15 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_services.h>
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#include <dev/tws/tws_hdm.h>
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int tws_use_32bit_sgls=0;
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extern u_int64_t mfa_base;
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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_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_cmd_complete(struct tws_request *req);
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extern void tws_print_stats(void *arg);
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extern int tws_send_scsi_cmd(struct tws_softc *sc, int cmd);
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extern int tws_set_param(struct tws_softc *sc, u_int32_t table_id,
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u_int32_t param_id, u_int32_t param_size, void *data);
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extern int tws_get_param(struct tws_softc *sc, u_int32_t table_id,
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u_int32_t param_id, u_int32_t param_size, void *data);
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extern void tws_reset(void *arg);
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int tws_init_connect(struct tws_softc *sc, u_int16_t mc);
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int tws_init_ctlr(struct tws_softc *sc);
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int tws_submit_command(struct tws_softc *sc, struct tws_request *req);
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void tws_nop_cmd(void *arg);
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u_int16_t tws_poll4_response(struct tws_softc *sc, u_int64_t *mfa);
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boolean tws_get_response(struct tws_softc *sc, u_int16_t *req_id,
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u_int64_t *mfa);
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boolean tws_ctlr_ready(struct tws_softc *sc);
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void tws_turn_on_interrupts(struct tws_softc *sc);
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void tws_turn_off_interrupts(struct tws_softc *sc);
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boolean tws_ctlr_reset(struct tws_softc *sc);
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void tws_assert_soft_reset(struct tws_softc *sc);
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int tws_send_generic_cmd(struct tws_softc *sc, u_int8_t opcode);
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void tws_fetch_aen(void *arg);
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void tws_disable_db_intr(struct tws_softc *sc);
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void tws_enable_db_intr(struct tws_softc *sc);
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void tws_aen_synctime_with_host(struct tws_softc *sc);
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void tws_init_obfl_q(struct tws_softc *sc);
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void tws_display_ctlr_info(struct tws_softc *sc);
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int
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tws_init_ctlr(struct tws_softc *sc)
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{
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u_int64_t reg;
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u_int32_t regh, regl;
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TWS_TRACE_DEBUG(sc, "entry", sc, sc->is64bit);
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sc->obfl_q_overrun = false;
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if ( tws_init_connect(sc, tws_queue_depth) )
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{
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TWS_TRACE_DEBUG(sc, "initConnect failed", 0, sc->is64bit);
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return(FAILURE);
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}
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while( 1 ) {
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regh = tws_read_reg(sc, TWS_I2O0_IOPOBQPH, 4);
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regl = tws_read_reg(sc, TWS_I2O0_IOPOBQPL, 4);
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reg = (((u_int64_t)regh) << 32) | regl;
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TWS_TRACE_DEBUG(sc, "host outbound cleanup",reg, regl);
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if ( regh == TWS_FIFO_EMPTY32 )
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break;
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}
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tws_init_obfl_q(sc);
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tws_display_ctlr_info(sc);
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tws_write_reg(sc, TWS_I2O0_HOBDBC, ~0, 4);
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tws_turn_on_interrupts(sc);
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return(SUCCESS);
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}
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void
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tws_init_obfl_q(struct tws_softc *sc)
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{
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int i=0;
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u_int64_t paddr;
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u_int32_t paddrh, paddrl, status;
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TWS_TRACE_DEBUG(sc, "entry", 0, sc->obfl_q_overrun);
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while ( i < tws_queue_depth ) {
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paddr = sc->sense_bufs[i].hdr_pkt_phy;
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paddrh = (u_int32_t)( paddr>>32);
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paddrl = (u_int32_t) paddr;
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tws_write_reg(sc, TWS_I2O0_HOBQPH, paddrh, 4);
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tws_write_reg(sc, TWS_I2O0_HOBQPL, paddrl, 4);
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status = tws_read_reg(sc, TWS_I2O0_STATUS, 4);
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if ( status & TWS_BIT13 ) {
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device_printf(sc->tws_dev, "OBFL Overrun\n");
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sc->obfl_q_overrun = true;
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break;
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}
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i++;
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}
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if ( i == tws_queue_depth )
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sc->obfl_q_overrun = false;
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}
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int
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tws_init_connect(struct tws_softc *sc, u_int16_t mcreadits )
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{
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struct tws_request *req;
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struct tws_cmd_init_connect *initc;
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u_int16_t reqid;
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u_int64_t mfa;
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TWS_TRACE_DEBUG(sc, "entry", 0, mcreadits);
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#if 0
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req = tws_get_request(sc, TWS_REQ_TYPE_INTERNAL_CMD);
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#else // 0
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req = &sc->reqs[TWS_REQ_TYPE_INTERNAL_CMD];
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bzero(&req->cmd_pkt->cmd, sizeof(struct tws_command_apache));
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req->data = NULL;
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req->length = 0;
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req->type = TWS_REQ_TYPE_INTERNAL_CMD;
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req->flags = TWS_DIR_UNKNOWN;
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req->error_code = TWS_REQ_RET_INVALID;
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req->cb = NULL;
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req->ccb_ptr = NULL;
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callout_stop(&req->timeout);
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req->next = req->prev = NULL;
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req->state = TWS_REQ_STATE_BUSY;
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#endif // 0
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if ( req == NULL ) {
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TWS_TRACE_DEBUG(sc, "no requests", 0, 0);
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// device_printf(sc->tws_dev, "No requests for initConnect\n");
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return(FAILURE);
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}
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tws_swap16(0xbeef); /* just for test */
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tws_swap32(0xdeadbeef); /* just for test */
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tws_swap64(0xdeadbeef); /* just for test */
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initc = &(req->cmd_pkt->cmd.pkt_g.init_connect);
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/* req->cmd_pkt->hdr.header_desc.size_header = 128; */
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initc->res1__opcode =
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BUILD_RES__OPCODE(0, TWS_FW_CMD_INIT_CONNECTION);
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initc->size = 6;
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initc->request_id = req->request_id;
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initc->message_credits = mcreadits;
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initc->features |= TWS_BIT_EXTEND;
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if ( sc->is64bit && !tws_use_32bit_sgls )
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initc->features |= TWS_64BIT_SG_ADDRESSES;
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/* assuming set features is always on */
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initc->size = 6;
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initc->fw_srl = sc->cinfo.working_srl = TWS_CURRENT_FW_SRL;
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initc->fw_arch_id = 0;
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initc->fw_branch = sc->cinfo.working_branch = 0;
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initc->fw_build = sc->cinfo.working_build = 0;
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req->error_code = tws_submit_command(sc, req);
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reqid = tws_poll4_response(sc, &mfa);
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if ( reqid != TWS_INVALID_REQID && reqid == req->request_id ) {
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sc->cinfo.fw_on_ctlr_srl = initc->fw_srl;
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sc->cinfo.fw_on_ctlr_branch = initc->fw_branch;
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sc->cinfo.fw_on_ctlr_build = initc->fw_build;
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sc->stats.reqs_out++;
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req->state = TWS_REQ_STATE_FREE;
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}
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else {
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/*
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* REVISIT::If init connect fails we need to reset the ctlr
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* and try again?
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*/
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TWS_TRACE(sc, "unexpected req_id ", reqid, 0);
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TWS_TRACE(sc, "INITCONNECT FAILED", reqid, 0);
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return(FAILURE);
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}
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return(SUCCESS);
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}
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void
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tws_display_ctlr_info(struct tws_softc *sc)
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{
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uint8_t fw_ver[16], bios_ver[16], ctlr_model[16], num_phys=0;
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uint32_t error[4];
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error[0] = tws_get_param(sc, TWS_PARAM_PHYS_TABLE,
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TWS_PARAM_CONTROLLER_PHYS_COUNT, 1, &num_phys);
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error[1] = tws_get_param(sc, TWS_PARAM_VERSION_TABLE,
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TWS_PARAM_VERSION_FW, 16, fw_ver);
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error[2] = tws_get_param(sc, TWS_PARAM_VERSION_TABLE,
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TWS_PARAM_VERSION_BIOS, 16, bios_ver);
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error[3] = tws_get_param(sc, TWS_PARAM_VERSION_TABLE,
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TWS_PARAM_CTLR_MODEL, 16, ctlr_model);
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if ( !error[0] && !error[1] && !error[2] && !error[3] ) {
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device_printf( sc->tws_dev,
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"Controller details: Model %.16s, %d Phys, Firmware %.16s, BIOS %.16s\n",
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ctlr_model, num_phys, fw_ver, bios_ver);
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}
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}
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int
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tws_send_generic_cmd(struct tws_softc *sc, u_int8_t opcode)
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{
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struct tws_request *req;
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struct tws_cmd_generic *cmd;
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TWS_TRACE_DEBUG(sc, "entry", sc, opcode);
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req = tws_get_request(sc, TWS_REQ_TYPE_INTERNAL_CMD);
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if ( req == NULL ) {
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TWS_TRACE_DEBUG(sc, "no requests", 0, 0);
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return(FAILURE);
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}
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cmd = &(req->cmd_pkt->cmd.pkt_g.generic);
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bzero(cmd, sizeof(struct tws_cmd_generic));
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/* req->cmd_pkt->hdr.header_desc.size_header = 128; */
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req->cb = tws_cmd_complete;
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cmd->sgl_off__opcode = BUILD_RES__OPCODE(0, opcode);
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cmd->size = 2;
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cmd->request_id = req->request_id;
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cmd->host_id__unit = 0;
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cmd->status = 0;
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cmd->flags = 0;
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cmd->count = 0;
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req->error_code = tws_submit_command(sc, req);
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return(SUCCESS);
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}
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int
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tws_submit_command(struct tws_softc *sc, struct tws_request *req)
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{
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u_int32_t regl, regh;
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u_int64_t mfa=0;
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/*
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* mfa register read and write must be in order.
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* Get the io_lock to protect against simultinous
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* passthru calls
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*/
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mtx_lock(&sc->io_lock);
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if ( sc->obfl_q_overrun ) {
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tws_init_obfl_q(sc);
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}
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#ifdef TWS_PULL_MODE_ENABLE
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regh = (u_int32_t)(req->cmd_pkt_phy >> 32);
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/* regh = regh | TWS_MSG_ACC_MASK; */
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mfa = regh;
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mfa = mfa << 32;
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regl = (u_int32_t)req->cmd_pkt_phy;
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regl = regl | TWS_BIT0;
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mfa = mfa | regl;
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#else
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regh = tws_read_reg(sc, TWS_I2O0_HIBQPH, 4);
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mfa = regh;
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mfa = mfa << 32;
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regl = tws_read_reg(sc, TWS_I2O0_HIBQPL, 4);
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mfa = mfa | regl;
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#endif
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mtx_unlock(&sc->io_lock);
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if ( mfa == TWS_FIFO_EMPTY ) {
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TWS_TRACE_DEBUG(sc, "inbound fifo empty", mfa, 0);
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/*
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* Generally we should not get here.
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* If the fifo was empty we can't do any thing much
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* retry later
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*/
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return(TWS_REQ_RET_PEND_NOMFA);
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}
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#ifndef TWS_PULL_MODE_ENABLE
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for (int i=mfa; i<(sizeof(struct tws_command_packet)+ mfa -
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sizeof( struct tws_command_header)); i++) {
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bus_space_write_1(sc->bus_mfa_tag, sc->bus_mfa_handle,i,
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((u_int8_t *)&req->cmd_pkt->cmd)[i-mfa]);
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}
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#endif
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if ( req->type == TWS_REQ_TYPE_SCSI_IO ) {
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mtx_lock(&sc->q_lock);
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tws_q_insert_tail(sc, req, TWS_BUSY_Q);
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mtx_unlock(&sc->q_lock);
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}
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/*
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* mfa register read and write must be in order.
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* Get the io_lock to protect against simultinous
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* passthru calls
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*/
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mtx_lock(&sc->io_lock);
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tws_write_reg(sc, TWS_I2O0_HIBQPH, regh, 4);
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tws_write_reg(sc, TWS_I2O0_HIBQPL, regl, 4);
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sc->stats.reqs_in++;
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mtx_unlock(&sc->io_lock);
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return(TWS_REQ_RET_SUBMIT_SUCCESS);
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}
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/*
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* returns true if the respose was available othewise, false.
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* In the case of error the arg mfa will contain the address and
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* req_id will be TWS_INVALID_REQID
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*/
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boolean
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tws_get_response(struct tws_softc *sc, u_int16_t *req_id, u_int64_t *mfa)
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{
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u_int64_t out_mfa=0, val=0;
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struct tws_outbound_response out_res;
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*req_id = TWS_INVALID_REQID;
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out_mfa = (u_int64_t)tws_read_reg(sc, TWS_I2O0_HOBQPH, 4);
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if ( out_mfa == TWS_FIFO_EMPTY32 ) {
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return(false);
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}
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out_mfa = out_mfa << 32;
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val = tws_read_reg(sc, TWS_I2O0_HOBQPL, 4);
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out_mfa = out_mfa | val;
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out_res = *(struct tws_outbound_response *)&out_mfa;
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if ( !out_res.not_mfa ) {
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*mfa = out_mfa;
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return(true);
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} else {
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*req_id = out_res.request_id;
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}
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return(true);
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}
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u_int16_t
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tws_poll4_response(struct tws_softc *sc, u_int64_t *mfa)
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{
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u_int16_t req_id;
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time_t endt;
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endt = TWS_LOCAL_TIME + TWS_POLL_TIMEOUT;
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do {
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if(tws_get_response(sc, &req_id, mfa)) {
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if ( req_id == TWS_INVALID_REQID ) {
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TWS_TRACE_DEBUG(sc, "invalid req_id", 0, req_id);
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return(TWS_INVALID_REQID);
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}
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return(req_id);
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}
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} while (TWS_LOCAL_TIME <= endt);
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TWS_TRACE_DEBUG(sc, "poll timeout", 0, 0);
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return(TWS_INVALID_REQID);
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}
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boolean
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tws_ctlr_ready(struct tws_softc *sc)
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{
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u_int32_t reg;
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reg = tws_read_reg(sc, TWS_I2O0_SCRPD3, 4);
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if ( reg & TWS_BIT13 )
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return(true);
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else
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return(false);
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}
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void
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tws_turn_on_interrupts(struct tws_softc *sc)
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{
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TWS_TRACE_DEBUG(sc, "entry", 0, 0);
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/* turn on response and db interrupt only */
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tws_write_reg(sc, TWS_I2O0_HIMASK, TWS_BIT0, 4);
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}
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void
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tws_turn_off_interrupts(struct tws_softc *sc)
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{
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TWS_TRACE_DEBUG(sc, "entry", 0, 0);
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tws_write_reg(sc, TWS_I2O0_HIMASK, ~0, 4);
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}
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void
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tws_disable_db_intr(struct tws_softc *sc)
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{
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u_int32_t reg;
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TWS_TRACE_DEBUG(sc, "entry", 0, 0);
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reg = tws_read_reg(sc, TWS_I2O0_HIMASK, 4);
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reg = reg | TWS_BIT2;
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tws_write_reg(sc, TWS_I2O0_HIMASK, reg, 4);
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}
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void
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tws_enable_db_intr(struct tws_softc *sc)
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{
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u_int32_t reg;
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TWS_TRACE_DEBUG(sc, "entry", 0, 0);
|
|
reg = tws_read_reg(sc, TWS_I2O0_HIMASK, 4);
|
|
reg = reg & ~TWS_BIT2;
|
|
tws_write_reg(sc, TWS_I2O0_HIMASK, reg, 4);
|
|
}
|
|
|
|
boolean
|
|
tws_ctlr_reset(struct tws_softc *sc)
|
|
{
|
|
|
|
u_int32_t reg;
|
|
time_t endt;
|
|
/* int i=0; */
|
|
|
|
TWS_TRACE_DEBUG(sc, "entry", 0, 0);
|
|
|
|
tws_assert_soft_reset(sc);
|
|
|
|
do {
|
|
reg = tws_read_reg(sc, TWS_I2O0_SCRPD3, 4);
|
|
} while ( reg & TWS_BIT13 );
|
|
|
|
endt = TWS_LOCAL_TIME + TWS_RESET_TIMEOUT;
|
|
do {
|
|
if(tws_ctlr_ready(sc))
|
|
return(true);
|
|
} while (TWS_LOCAL_TIME <= endt);
|
|
return(false);
|
|
|
|
}
|
|
|
|
void
|
|
tws_assert_soft_reset(struct tws_softc *sc)
|
|
{
|
|
u_int32_t reg;
|
|
|
|
reg = tws_read_reg(sc, TWS_I2O0_HIBDB, 4);
|
|
TWS_TRACE_DEBUG(sc, "in bound door bell read ", reg, TWS_I2O0_HIBDB);
|
|
tws_write_reg(sc, TWS_I2O0_HIBDB, reg | TWS_BIT8, 4);
|
|
|
|
}
|
|
|
|
void
|
|
tws_fetch_aen(void *arg)
|
|
{
|
|
struct tws_softc *sc = (struct tws_softc *)arg;
|
|
int error = 0;
|
|
|
|
TWS_TRACE_DEBUG(sc, "entry", 0, 0);
|
|
|
|
if ((error = tws_send_scsi_cmd(sc, 0x03 /* REQUEST_SENSE */))) {
|
|
TWS_TRACE_DEBUG(sc, "aen fetch send in progress", 0, 0);
|
|
}
|
|
}
|
|
|
|
void
|
|
tws_aen_synctime_with_host(struct tws_softc *sc)
|
|
{
|
|
|
|
int error;
|
|
long int sync_time;
|
|
|
|
TWS_TRACE_DEBUG(sc, "entry", sc, 0);
|
|
|
|
sync_time = (TWS_LOCAL_TIME - (3 * 86400)) % 604800;
|
|
TWS_TRACE_DEBUG(sc, "sync_time,ts", sync_time, time_second);
|
|
TWS_TRACE_DEBUG(sc, "utc_offset", utc_offset(), 0);
|
|
error = tws_set_param(sc, TWS_PARAM_TIME_TABLE, TWS_PARAM_TIME_SCHED_TIME,
|
|
4, &sync_time);
|
|
if ( error )
|
|
TWS_TRACE_DEBUG(sc, "set param failed", sync_time, error);
|
|
}
|
|
|
|
TUNABLE_INT("hw.tws.use_32bit_sgls", &tws_use_32bit_sgls);
|