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663 lines
17 KiB
C
663 lines
17 KiB
C
/* $FreeBSD$ */
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/* $Id: isp_freebsd.c,v 1.11 1998/09/14 23:22:12 mjacob Exp $ */
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/*
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* Platform (FreeBSD) dependent common attachment code for Qlogic adapters.
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*
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*---------------------------------------
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* Copyright (c) 1997, 1998 by Matthew Jacob
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* NASA/Ames Research Center
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* All rights reserved.
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*---------------------------------------
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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 immediately at the beginning of the file, without modification,
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* 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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* 3. The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission.
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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 FOR
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* 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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#include <dev/isp/isp_freebsd.h>
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#ifdef SCSI_CAM
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static void isp_async __P((void *, u_int32_t, struct cam_path *, void *));
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static void isp_poll __P((struct cam_sim *));
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static void isp_action __P((struct cam_sim *, union ccb *));
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void
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isp_attach(isp)
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struct ispsoftc *isp;
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{
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struct ccb_setasync csa;
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struct cam_devq *devq;
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/*
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* Create the device queue for our SIM.
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*/
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devq = cam_simq_alloc(MAXISPREQUEST);
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if (devq == NULL) {
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return;
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}
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/*
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* Construct our SIM entry
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*/
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isp->isp_sim = cam_sim_alloc(isp_action, isp_poll, "isp", isp,
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isp->isp_unit, 1, MAXISPREQUEST, devq);
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if (isp->isp_sim == NULL) {
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cam_simq_free(devq);
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return;
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}
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if (xpt_bus_register(isp->isp_sim, 0) != CAM_SUCCESS) {
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cam_sim_free(isp->isp_sim, TRUE);
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return;
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}
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if (xpt_create_path(&isp->isp_path, NULL, cam_sim_path(isp->isp_sim),
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CAM_TARGET_WILDCARD, CAM_LUN_WILDCARD) != CAM_REQ_CMP) {
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xpt_bus_deregister(cam_sim_path(isp->isp_sim));
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cam_sim_free(isp->isp_sim, TRUE);
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return;
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}
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xpt_setup_ccb(&csa.ccb_h, isp->isp_path, 5);
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csa.ccb_h.func_code = XPT_SASYNC_CB;
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csa.event_enable = AC_LOST_DEVICE;
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csa.callback = isp_async;
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csa.callback_arg = isp->isp_sim;
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xpt_action((union ccb *)&csa);
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/*
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* Set base transfer capabilities for Fibre Channel.
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* Technically not correct because we don't know
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* what media we're running on top of- but we'll
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* look good if we always say 100MB/s.
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*/
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if (isp->isp_type & ISP_HA_FC) {
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isp->isp_sim->base_transfer_speed = 100000;
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}
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isp->isp_state = ISP_RUNSTATE;
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}
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static void
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isp_async(cbarg, code, path, arg)
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void *cbarg;
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u_int32_t code;
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struct cam_path *path;
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void *arg;
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{
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struct cam_sim *sim;
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struct ispsoftc *isp;
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sim = (struct cam_sim *)cbarg;
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isp = (struct ispsoftc *) cam_sim_softc(sim);
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switch (code) {
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case AC_LOST_DEVICE:
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if (isp->isp_type & ISP_HA_SCSI) {
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u_int16_t oflags, nflags;
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sdparam *sdp = isp->isp_param;
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int s, tgt = xpt_path_target_id(path);
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nflags = DPARM_SAFE_DFLT;
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if (isp->isp_fwrev >= ISP_FW_REV(7, 55)) {
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nflags |= DPARM_NARROW | DPARM_ASYNC;
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}
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oflags = sdp->isp_devparam[tgt].dev_flags;
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sdp->isp_devparam[tgt].dev_flags = nflags;
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sdp->isp_devparam[tgt].dev_update = 1;
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s = splcam();
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(void) isp_control(isp, ISPCTL_UPDATE_PARAMS, NULL);
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(void) splx(s);
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sdp->isp_devparam[tgt].dev_flags = oflags;
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}
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break;
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default:
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break;
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}
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}
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static void
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isp_poll(sim)
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struct cam_sim *sim;
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{
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isp_intr((struct ispsoftc *) cam_sim_softc(sim));
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}
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static void
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isp_action(sim, ccb)
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struct cam_sim *sim;
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union ccb *ccb;
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{
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int s, tgt, error;
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struct ispsoftc *isp;
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struct ccb_trans_settings *cts, set;
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CAM_DEBUG(ccb->ccb_h.path, CAM_DEBUG_TRACE, ("isp_action\n"));
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isp = (struct ispsoftc *)cam_sim_softc(sim);
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ccb->ccb_h.sim_priv.entries[0].field = 0;
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ccb->ccb_h.sim_priv.entries[1].ptr = isp;
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IDPRINTF(4, ("%s: isp_action code %x\n", isp->isp_name,
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ccb->ccb_h.func_code));
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switch (ccb->ccb_h.func_code) {
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case XPT_SCSI_IO: /* Execute the requested I/O operation */
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/*
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* Do a couple of preliminary checks...
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*/
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if ((ccb->ccb_h.flags & CAM_CDB_POINTER) != 0) {
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if ((ccb->ccb_h.flags & CAM_CDB_PHYS) != 0) {
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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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if (isp->isp_type & ISP_HA_SCSI) {
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if (ccb->ccb_h.target_id > (MAX_TARGETS-1)) {
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ccb->ccb_h.status = CAM_PATH_INVALID;
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} else if (isp->isp_fwrev >= ISP_FW_REV(7, 55)) {
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/*
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* Too much breakage.
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*/
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#if 0
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if (ccb->ccb_h.target_lun > 31) {
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ccb->ccb_h.status = CAM_PATH_INVALID;
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}
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#else
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if (ccb->ccb_h.target_lun > 7) {
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ccb->ccb_h.status = CAM_PATH_INVALID;
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}
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#endif
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} else if (ccb->ccb_h.target_lun > 7) {
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ccb->ccb_h.status = CAM_PATH_INVALID;
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}
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} else {
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if (ccb->ccb_h.target_id > (MAX_FC_TARG-1)) {
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ccb->ccb_h.status = CAM_PATH_INVALID;
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} else if (ccb->ccb_h.target_lun > 15) {
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ccb->ccb_h.status = CAM_PATH_INVALID;
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}
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}
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if (ccb->ccb_h.status == CAM_PATH_INVALID) {
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printf("%s: invalid tgt/lun (%d.%d) in XPT_SCSI_IO\n",
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isp->isp_name, ccb->ccb_h.target_id,
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ccb->ccb_h.target_lun);
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xpt_done(ccb);
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break;
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}
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s = splcam();
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switch (ispscsicmd((ISP_SCSI_XFER_T *) ccb)) {
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case CMD_QUEUED:
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ccb->ccb_h.status |= CAM_SIM_QUEUED;
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break;
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case CMD_EAGAIN:
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printf("%s: EAGAINed %d.%d\n", isp->isp_name,
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ccb->ccb_h.target_id, ccb->ccb_h.target_lun);
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printf("%s: %d EAGAIN\n", __FILE__, __LINE__);
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xpt_freeze_simq(sim, 1);
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ccb->ccb_h.status &= ~CAM_STATUS_MASK;
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ccb->ccb_h.status |= CAM_REQUEUE_REQ;
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xpt_done(ccb);
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break;
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case CMD_COMPLETE:
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printf("%s: COMPLETEd for %d.%d with cam status 0%x\n",
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isp->isp_name, ccb->ccb_h.target_id,
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ccb->ccb_h.target_lun, ccb->ccb_h.status);
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if ((ccb->ccb_h.status & CAM_STATUS_MASK) !=
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CAM_REQ_INPROG) {
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/* XXX: Cannot Happen */
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ccb->ccb_h.status &= ~CAM_STATUS_MASK;
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ccb->ccb_h.status |= CAM_REQ_CMP_ERR;
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}
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xpt_done(ccb);
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break;
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}
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splx(s);
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break;
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case XPT_EN_LUN: /* Enable LUN as a target */
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case XPT_TARGET_IO: /* Execute target I/O request */
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case XPT_ACCEPT_TARGET_IO: /* Accept Host Target Mode CDB */
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case XPT_CONT_TARGET_IO: /* Continue Host Target I/O Connection*/
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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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case XPT_RESET_DEV: /* BDR the specified SCSI device */
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tgt = ccb->ccb_h.target_id;
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s = splcam();
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error = isp_control(isp, ISPCTL_RESET_DEV, (void *) tgt);
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(void) splx(s);
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if (error) {
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ccb->ccb_h.status = CAM_REQ_CMP_ERR;
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} else {
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ccb->ccb_h.status = CAM_REQ_CMP;
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}
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xpt_done(ccb);
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break;
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case XPT_ABORT: /* Abort the specified CCB */
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s = splcam();
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error = isp_control(isp, ISPCTL_ABORT_CMD, ccb);
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(void) splx(s);
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if (error) {
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ccb->ccb_h.status = CAM_REQ_CMP_ERR;
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} else {
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ccb->ccb_h.status = CAM_REQ_CMP;
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}
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xpt_done(ccb);
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break;
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case XPT_SET_TRAN_SETTINGS: /* Nexus Settings */
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cts = &ccb->cts;
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tgt = cts->ccb_h.target_id;
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s = splcam();
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if (isp->isp_type & ISP_HA_FC) {
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; /* nothing to change */
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} else {
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sdparam *sdp = isp->isp_param;
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u_int16_t *dptr;
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#if 0
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if (cts->flags & CCB_TRANS_CURRENT_SETTINGS)
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dptr = &sdp->isp_devparam[tgt].cur_dflags;
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else
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dptr = &sdp->isp_devparam[tgt].dev_flags;
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#else
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/*
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* We always update (internally) from dev_flags
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* so any request to change settings just gets
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* vectored to that location.
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*/
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dptr = &sdp->isp_devparam[tgt].dev_flags;
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#endif
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/*
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* Note that these operations affect the
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* the permanent flags (dev_flags)- not
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* the current state flags. Then we mark
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* things so that the next operation to
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* this HBA will cause the update to occur.
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*/
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if (cts->valid & CCB_TRANS_DISC_VALID) {
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if ((cts->flags & CCB_TRANS_DISC_ENB) != 0) {
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*dptr |= DPARM_DISC;
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} else {
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*dptr &= ~DPARM_DISC;
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}
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}
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if (cts->valid & CCB_TRANS_TQ_VALID) {
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if ((cts->flags & CCB_TRANS_TAG_ENB) != 0) {
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*dptr |= DPARM_TQING;
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} else {
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*dptr &= ~DPARM_TQING;
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}
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}
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if (cts->valid & CCB_TRANS_BUS_WIDTH_VALID) {
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switch (cts->bus_width) {
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case MSG_EXT_WDTR_BUS_16_BIT:
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*dptr |= DPARM_WIDE;
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break;
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default:
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*dptr &= ~DPARM_WIDE;
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}
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}
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/*
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* Any SYNC RATE of nonzero and SYNC_OFFSET
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* of nonzero will cause us to go to the
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* selected (from NVRAM) maximum value for
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* this device. At a later point, we'll
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* allow finer control.
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*/
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if ((cts->valid & CCB_TRANS_SYNC_RATE_VALID) &&
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(cts->valid & CCB_TRANS_SYNC_OFFSET_VALID) &&
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(cts->sync_offset > 0)) {
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*dptr |= DPARM_SYNC;
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} else {
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*dptr &= ~DPARM_SYNC;
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}
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IDPRINTF(3, ("%s: target %d new dev_flags 0x%x\n",
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isp->isp_name, tgt,
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sdp->isp_devparam[tgt].dev_flags));
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s = splcam();
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sdp->isp_devparam[tgt].dev_update = 1;
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isp->isp_update = 1;
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(void) isp_control(isp, ISPCTL_UPDATE_PARAMS, NULL);
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(void) splx(s);
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}
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(void) splx(s);
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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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case XPT_GET_TRAN_SETTINGS:
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cts = &ccb->cts;
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tgt = cts->ccb_h.target_id;
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if (isp->isp_type & ISP_HA_FC) {
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/*
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* a lot of normal SCSI things don't make sense.
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*/
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cts->flags = CCB_TRANS_TAG_ENB | CCB_TRANS_DISC_ENB;
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cts->valid = CCB_TRANS_DISC_VALID | CCB_TRANS_TQ_VALID;
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/*
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* How do you measure the width of a high
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* speed serial bus? Well, in bytes.
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*
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* Offset and period make no sense, though, so we set
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* (above) a 'base' transfer speed to be gigabit.
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*/
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cts->bus_width = MSG_EXT_WDTR_BUS_8_BIT;
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} else {
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sdparam *sdp = isp->isp_param;
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u_int16_t dval;
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if (cts->flags & CCB_TRANS_CURRENT_SETTINGS)
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dval = sdp->isp_devparam[tgt].cur_dflags;
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else
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dval = sdp->isp_devparam[tgt].dev_flags;
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s = splcam();
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cts->flags &= ~(CCB_TRANS_DISC_ENB|CCB_TRANS_TAG_ENB);
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if (dval & DPARM_DISC) {
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cts->flags |= CCB_TRANS_DISC_ENB;
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}
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if (dval & DPARM_TQING) {
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cts->flags |= CCB_TRANS_TAG_ENB;
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}
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if (dval & DPARM_WIDE) {
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cts->bus_width = MSG_EXT_WDTR_BUS_16_BIT;
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} else {
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cts->bus_width = MSG_EXT_WDTR_BUS_8_BIT;
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}
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cts->valid = CCB_TRANS_BUS_WIDTH_VALID |
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CCB_TRANS_DISC_VALID | CCB_TRANS_TQ_VALID;
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if ((dval & DPARM_SYNC) &&
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(sdp->isp_devparam[tgt].sync_offset)) {
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cts->sync_period =
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sdp->isp_devparam[tgt].sync_period;
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cts->sync_offset =
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sdp->isp_devparam[tgt].sync_offset;
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cts->valid |=
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CCB_TRANS_SYNC_RATE_VALID |
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CCB_TRANS_SYNC_OFFSET_VALID;
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}
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splx(s);
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}
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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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case XPT_CALC_GEOMETRY:
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{
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struct ccb_calc_geometry *ccg;
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u_int32_t secs_per_cylinder;
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u_int32_t size_mb;
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ccg = &ccb->ccg;
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if (ccg->block_size == 0) {
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printf("%s: %d.%d XPT_CALC_GEOMETRY block size 0?\n",
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isp->isp_name, ccg->ccb_h.target_id,
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ccg->ccb_h.target_lun);
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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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size_mb = ccg->volume_size /((1024L * 1024L) / ccg->block_size);
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if (size_mb > 1024) {
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ccg->heads = 255;
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ccg->secs_per_track = 63;
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} else {
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ccg->heads = 64;
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ccg->secs_per_track = 32;
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}
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secs_per_cylinder = ccg->heads * ccg->secs_per_track;
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ccg->cylinders = ccg->volume_size / secs_per_cylinder;
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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_RESET_BUS: /* Reset the specified bus */
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if (isp->isp_type & ISP_HA_FC) {
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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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s = splcam();
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error = isp_control(isp, ISPCTL_RESET_BUS, NULL);
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(void) splx(s);
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if (error)
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ccb->ccb_h.status = CAM_REQ_CMP_ERR;
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else
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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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case XPT_TERM_IO: /* Terminate the I/O process */
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/* Does this need to be implemented? */
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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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case XPT_PATH_INQ: /* Path routing inquiry */
|
|
{
|
|
struct ccb_pathinq *cpi = &ccb->cpi;
|
|
|
|
cpi->version_num = 1;
|
|
cpi->hba_inquiry = PI_SDTR_ABLE|PI_TAG_ABLE|PI_WIDE_16;
|
|
cpi->target_sprt = 0;
|
|
cpi->hba_misc = 0;
|
|
cpi->hba_eng_cnt = 0;
|
|
if (isp->isp_type & ISP_HA_FC) {
|
|
cpi->max_target = MAX_FC_TARG-1;
|
|
cpi->initiator_id =
|
|
((fcparam *)isp->isp_param)->isp_loopid;
|
|
/*
|
|
* XXX: actually, this is not right if we have
|
|
* XXX: 1.14 F/W and the second level lun addressing
|
|
* XXX: in place. It's also probably not right
|
|
* XXX: even for 1.13 f/w.
|
|
*/
|
|
cpi->max_lun = 15;
|
|
} else {
|
|
cpi->initiator_id =
|
|
((sdparam *)isp->isp_param)->isp_initiator_id;
|
|
cpi->max_target = MAX_TARGETS-1;
|
|
if (isp->isp_fwrev >= ISP_FW_REV(7, 55)) {
|
|
/*
|
|
* Too much breakage.
|
|
*/
|
|
#if 0
|
|
cpi->max_lun = 31;
|
|
#else
|
|
cpi->max_lun = 7;
|
|
#endif
|
|
} else {
|
|
cpi->max_lun = 7;
|
|
}
|
|
}
|
|
|
|
cpi->bus_id = cam_sim_bus(sim);
|
|
strncpy(cpi->sim_vid, "FreeBSD", SIM_IDLEN);
|
|
strncpy(cpi->hba_vid, "Qlogic", HBA_IDLEN);
|
|
strncpy(cpi->dev_name, cam_sim_name(sim), DEV_IDLEN);
|
|
cpi->unit_number = cam_sim_unit(sim);
|
|
cpi->ccb_h.status = CAM_REQ_CMP;
|
|
xpt_done(ccb);
|
|
break;
|
|
}
|
|
default:
|
|
ccb->ccb_h.status = CAM_REQ_INVALID;
|
|
xpt_done(ccb);
|
|
break;
|
|
}
|
|
}
|
|
#else
|
|
|
|
static void ispminphys __P((struct buf *));
|
|
static u_int32_t isp_adapter_info __P((int));
|
|
static int ispcmd __P((ISP_SCSI_XFER_T *));
|
|
|
|
static struct scsi_adapter isp_switch = {
|
|
ispcmd, ispminphys, 0, 0, isp_adapter_info, "isp", { 0, 0 }
|
|
};
|
|
static struct scsi_device isp_dev = {
|
|
NULL, NULL, NULL, NULL, "isp", 0, { 0, 0 }
|
|
};
|
|
static int isp_poll __P((struct ispsoftc *, ISP_SCSI_XFER_T *, int));
|
|
|
|
|
|
/*
|
|
* Complete attachment of hardware, include subdevices.
|
|
*/
|
|
void
|
|
isp_attach(isp)
|
|
struct ispsoftc *isp;
|
|
{
|
|
struct scsibus_data *scbus;
|
|
|
|
scbus = scsi_alloc_bus();
|
|
if(!scbus) {
|
|
return;
|
|
}
|
|
isp->isp_state = ISP_RUNSTATE;
|
|
|
|
isp->isp_osinfo._link.adapter_unit = isp->isp_osinfo.unit;
|
|
isp->isp_osinfo._link.adapter_softc = isp;
|
|
isp->isp_osinfo._link.adapter = &isp_switch;
|
|
isp->isp_osinfo._link.device = &isp_dev;
|
|
isp->isp_osinfo._link.flags = 0;
|
|
if (isp->isp_type & ISP_HA_FC) {
|
|
isp->isp_osinfo._link.adapter_targ =
|
|
((fcparam *)isp->isp_param)->isp_loopid;
|
|
scbus->maxtarg = MAX_FC_TARG-1;
|
|
} else {
|
|
isp->isp_osinfo._link.adapter_targ =
|
|
((sdparam *)isp->isp_param)->isp_initiator_id;
|
|
scbus->maxtarg = MAX_TARGETS-1;
|
|
}
|
|
/*
|
|
* Prepare the scsibus_data area for the upperlevel scsi code.
|
|
*/
|
|
scbus->adapter_link = &isp->isp_osinfo._link;
|
|
|
|
/*
|
|
* ask the adapter what subunits are present
|
|
*/
|
|
scsi_attachdevs(scbus);
|
|
}
|
|
|
|
|
|
/*
|
|
* minphys our xfers
|
|
*
|
|
* Unfortunately, the buffer pointer describes the target device- not the
|
|
* adapter device, so we can't use the pointer to find out what kind of
|
|
* adapter we are and adjust accordingly.
|
|
*/
|
|
|
|
static void
|
|
ispminphys(bp)
|
|
struct buf *bp;
|
|
{
|
|
/*
|
|
* Only the 10X0 has a 24 bit limit.
|
|
*/
|
|
if (bp->b_bcount >= (1 << 24)) {
|
|
bp->b_bcount = (1 << 24);
|
|
}
|
|
}
|
|
|
|
static u_int32_t
|
|
isp_adapter_info(unit)
|
|
int unit;
|
|
{
|
|
/*
|
|
* XXX: FIND ISP BASED UPON UNIT AND GET REAL QUEUE LIMIT FROM THAT
|
|
*/
|
|
return (2);
|
|
}
|
|
|
|
static int
|
|
ispcmd(xs)
|
|
ISP_SCSI_XFER_T *xs;
|
|
{
|
|
struct ispsoftc *isp;
|
|
int r;
|
|
ISP_LOCKVAL_DECL;
|
|
|
|
isp = XS_ISP(xs);
|
|
ISP_LOCK;
|
|
r = ispscsicmd(xs);
|
|
if (r != CMD_QUEUED || (xs->flags & SCSI_NOMASK) == 0) {
|
|
ISP_UNLOCK;
|
|
return (r);
|
|
}
|
|
|
|
/*
|
|
* If we can't use interrupts, poll on completion.
|
|
*/
|
|
if (isp_poll(isp, xs, XS_TIME(xs))) {
|
|
/*
|
|
* If no other error occurred but we didn't finish,
|
|
* something bad happened.
|
|
*/
|
|
if (XS_IS_CMD_DONE(xs) == 0) {
|
|
isp->isp_nactive--;
|
|
if (isp->isp_nactive < 0)
|
|
isp->isp_nactive = 0;
|
|
if (XS_NOERR(xs)) {
|
|
isp_lostcmd(isp, xs);
|
|
XS_SETERR(xs, HBA_BOTCH);
|
|
}
|
|
}
|
|
}
|
|
ISP_UNLOCK;
|
|
return (CMD_COMPLETE);
|
|
}
|
|
|
|
static int
|
|
isp_poll(isp, xs, mswait)
|
|
struct ispsoftc *isp;
|
|
ISP_SCSI_XFER_T *xs;
|
|
int mswait;
|
|
{
|
|
|
|
while (mswait) {
|
|
/* Try the interrupt handling routine */
|
|
(void)isp_intr((void *)isp);
|
|
|
|
/* See if the xs is now done */
|
|
if (XS_IS_CMD_DONE(xs))
|
|
return (0);
|
|
SYS_DELAY(1000); /* wait one millisecond */
|
|
mswait--;
|
|
}
|
|
return (1);
|
|
}
|
|
#endif
|