1715 lines
44 KiB
C
1715 lines
44 KiB
C
/*-
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* Bus independent FreeBSD shim for the aic7xxx based Adaptec SCSI controllers
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*
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* Copyright (c) 1994-2001 Justin T. Gibbs.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions, and the following disclaimer,
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* without modification.
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* 2. 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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* Alternatively, this software may be distributed under the terms of the
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* GNU Public License ("GPL").
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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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* $Id: //depot/aic7xxx/freebsd/dev/aic7xxx/aic7xxx_osm.c#20 $
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*/
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#include <sys/cdefs.h>
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__FBSDID("$FreeBSD$");
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#include <dev/aic7xxx/aic7xxx_osm.h>
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#include <dev/aic7xxx/aic7xxx_inline.h>
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#include <sys/kthread.h>
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#ifndef AHC_TMODE_ENABLE
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#define AHC_TMODE_ENABLE 0
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#endif
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#include <dev/aic7xxx/aic_osm_lib.c>
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#define ccb_scb_ptr spriv_ptr0
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devclass_t ahc_devclass;
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#if 0
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static void ahc_dump_targcmd(struct target_cmd *cmd);
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#endif
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static int ahc_modevent(module_t mod, int type, void *data);
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static void ahc_action(struct cam_sim *sim, union ccb *ccb);
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static void ahc_get_tran_settings(struct ahc_softc *ahc,
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int our_id, char channel,
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struct ccb_trans_settings *cts);
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static void ahc_async(void *callback_arg, uint32_t code,
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struct cam_path *path, void *arg);
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static void ahc_execute_scb(void *arg, bus_dma_segment_t *dm_segs,
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int nsegments, int error);
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static void ahc_poll(struct cam_sim *sim);
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static void ahc_setup_data(struct ahc_softc *ahc, struct cam_sim *sim,
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struct ccb_scsiio *csio, struct scb *scb);
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static void ahc_abort_ccb(struct ahc_softc *ahc, struct cam_sim *sim,
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union ccb *ccb);
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static int ahc_create_path(struct ahc_softc *ahc,
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char channel, u_int target, u_int lun,
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struct cam_path **path);
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static int
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ahc_create_path(struct ahc_softc *ahc, char channel, u_int target,
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u_int lun, struct cam_path **path)
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{
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path_id_t path_id;
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if (channel == 'B')
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path_id = cam_sim_path(ahc->platform_data->sim_b);
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else
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path_id = cam_sim_path(ahc->platform_data->sim);
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return (xpt_create_path(path, /*periph*/NULL,
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path_id, target, lun));
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}
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int
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ahc_map_int(struct ahc_softc *ahc)
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{
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int error;
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int zero;
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int shareable;
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zero = 0;
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shareable = (ahc->flags & AHC_EDGE_INTERRUPT) ? 0: RF_SHAREABLE;
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ahc->platform_data->irq =
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bus_alloc_resource_any(ahc->dev_softc, SYS_RES_IRQ, &zero,
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RF_ACTIVE | shareable);
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if (ahc->platform_data->irq == NULL) {
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device_printf(ahc->dev_softc,
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"bus_alloc_resource() failed to allocate IRQ\n");
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return (ENOMEM);
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}
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ahc->platform_data->irq_res_type = SYS_RES_IRQ;
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/* Hook up our interrupt handler */
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error = bus_setup_intr(ahc->dev_softc, ahc->platform_data->irq,
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INTR_TYPE_CAM, ahc_platform_intr, ahc,
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&ahc->platform_data->ih);
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if (error != 0)
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device_printf(ahc->dev_softc, "bus_setup_intr() failed: %d\n",
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error);
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return (error);
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}
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int
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aic7770_map_registers(struct ahc_softc *ahc, u_int unused_ioport_arg)
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{
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struct resource *regs;
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int rid;
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rid = 0;
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regs = bus_alloc_resource_any(ahc->dev_softc, SYS_RES_IOPORT, &rid,
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RF_ACTIVE);
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if (regs == NULL) {
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device_printf(ahc->dev_softc, "Unable to map I/O space?!\n");
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return ENOMEM;
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}
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ahc->platform_data->regs_res_type = SYS_RES_IOPORT;
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ahc->platform_data->regs_res_id = rid,
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ahc->platform_data->regs = regs;
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ahc->tag = rman_get_bustag(regs);
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ahc->bsh = rman_get_bushandle(regs);
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return (0);
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}
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/*
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* Attach all the sub-devices we can find
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*/
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int
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ahc_attach(struct ahc_softc *ahc)
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{
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char ahc_info[256];
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struct ccb_setasync csa;
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struct cam_devq *devq;
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int bus_id;
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int bus_id2;
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struct cam_sim *sim;
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struct cam_sim *sim2;
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struct cam_path *path;
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struct cam_path *path2;
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long s;
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int count;
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count = 0;
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sim = NULL;
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sim2 = NULL;
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path = NULL;
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path2 = NULL;
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/*
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* Create a thread to perform all recovery.
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*/
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if (ahc_spawn_recovery_thread(ahc) != 0)
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goto fail;
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ahc_controller_info(ahc, ahc_info);
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printf("%s\n", ahc_info);
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ahc_lock(ahc, &s);
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/*
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* Attach secondary channel first if the user has
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* declared it the primary channel.
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*/
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if ((ahc->features & AHC_TWIN) != 0
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&& (ahc->flags & AHC_PRIMARY_CHANNEL) != 0) {
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bus_id = 1;
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bus_id2 = 0;
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} else {
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bus_id = 0;
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bus_id2 = 1;
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}
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/*
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* Create the device queue for our SIM(s).
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*/
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devq = cam_simq_alloc(AHC_MAX_QUEUE);
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if (devq == NULL)
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goto fail;
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/*
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* Construct our first channel SIM entry
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*/
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sim = cam_sim_alloc(ahc_action, ahc_poll, "ahc", ahc,
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device_get_unit(ahc->dev_softc),
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1, AHC_MAX_QUEUE, devq);
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if (sim == NULL) {
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cam_simq_free(devq);
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goto fail;
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}
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if (xpt_bus_register(sim, bus_id) != CAM_SUCCESS) {
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cam_sim_free(sim, /*free_devq*/TRUE);
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sim = NULL;
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goto fail;
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}
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if (xpt_create_path(&path, /*periph*/NULL,
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cam_sim_path(sim), CAM_TARGET_WILDCARD,
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CAM_LUN_WILDCARD) != CAM_REQ_CMP) {
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xpt_bus_deregister(cam_sim_path(sim));
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cam_sim_free(sim, /*free_devq*/TRUE);
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sim = NULL;
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goto fail;
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}
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xpt_setup_ccb(&csa.ccb_h, path, /*priority*/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 = ahc_async;
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csa.callback_arg = sim;
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xpt_action((union ccb *)&csa);
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count++;
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if (ahc->features & AHC_TWIN) {
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sim2 = cam_sim_alloc(ahc_action, ahc_poll, "ahc",
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ahc, device_get_unit(ahc->dev_softc), 1,
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AHC_MAX_QUEUE, devq);
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if (sim2 == NULL) {
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printf("ahc_attach: Unable to attach second "
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"bus due to resource shortage");
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goto fail;
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}
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if (xpt_bus_register(sim2, bus_id2) != CAM_SUCCESS) {
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printf("ahc_attach: Unable to attach second "
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"bus due to resource shortage");
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/*
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* We do not want to destroy the device queue
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* because the first bus is using it.
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*/
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cam_sim_free(sim2, /*free_devq*/FALSE);
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goto fail;
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}
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if (xpt_create_path(&path2, /*periph*/NULL,
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cam_sim_path(sim2),
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CAM_TARGET_WILDCARD,
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CAM_LUN_WILDCARD) != CAM_REQ_CMP) {
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xpt_bus_deregister(cam_sim_path(sim2));
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cam_sim_free(sim2, /*free_devq*/FALSE);
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sim2 = NULL;
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goto fail;
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}
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xpt_setup_ccb(&csa.ccb_h, path2, /*priority*/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 = ahc_async;
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csa.callback_arg = sim2;
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xpt_action((union ccb *)&csa);
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count++;
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}
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fail:
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if ((ahc->features & AHC_TWIN) != 0
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&& (ahc->flags & AHC_PRIMARY_CHANNEL) != 0) {
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ahc->platform_data->sim_b = sim;
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ahc->platform_data->path_b = path;
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ahc->platform_data->sim = sim2;
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ahc->platform_data->path = path2;
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} else {
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ahc->platform_data->sim = sim;
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ahc->platform_data->path = path;
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ahc->platform_data->sim_b = sim2;
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ahc->platform_data->path_b = path2;
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}
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if (count != 0) {
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/* We have to wait until after any system dumps... */
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ahc->platform_data->eh =
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EVENTHANDLER_REGISTER(shutdown_final, ahc_shutdown,
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ahc, SHUTDOWN_PRI_DEFAULT);
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ahc_intr_enable(ahc, TRUE);
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}
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ahc_unlock(ahc, &s);
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return (count);
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}
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/*
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* Catch an interrupt from the adapter
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*/
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void
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ahc_platform_intr(void *arg)
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{
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struct ahc_softc *ahc;
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ahc = (struct ahc_softc *)arg;
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ahc_intr(ahc);
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}
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/*
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* We have an scb which has been processed by the
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* adaptor, now we look to see how the operation
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* went.
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*/
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void
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ahc_done(struct ahc_softc *ahc, struct scb *scb)
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{
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union ccb *ccb;
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CAM_DEBUG(scb->io_ctx->ccb_h.path, CAM_DEBUG_TRACE,
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("ahc_done - scb %d\n", scb->hscb->tag));
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ccb = scb->io_ctx;
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LIST_REMOVE(scb, pending_links);
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if ((scb->flags & SCB_TIMEDOUT) != 0)
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LIST_REMOVE(scb, timedout_links);
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if ((scb->flags & SCB_UNTAGGEDQ) != 0) {
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struct scb_tailq *untagged_q;
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int target_offset;
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target_offset = SCB_GET_TARGET_OFFSET(ahc, scb);
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untagged_q = &ahc->untagged_queues[target_offset];
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TAILQ_REMOVE(untagged_q, scb, links.tqe);
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scb->flags &= ~SCB_UNTAGGEDQ;
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ahc_run_untagged_queue(ahc, untagged_q);
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}
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untimeout(ahc_platform_timeout, (caddr_t)scb, ccb->ccb_h.timeout_ch);
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if ((ccb->ccb_h.flags & CAM_DIR_MASK) != CAM_DIR_NONE) {
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bus_dmasync_op_t op;
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if ((ccb->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_IN)
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op = BUS_DMASYNC_POSTREAD;
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else
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op = BUS_DMASYNC_POSTWRITE;
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bus_dmamap_sync(ahc->buffer_dmat, scb->dmamap, op);
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bus_dmamap_unload(ahc->buffer_dmat, scb->dmamap);
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}
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if (ccb->ccb_h.func_code == XPT_CONT_TARGET_IO) {
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struct cam_path *ccb_path;
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/*
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* If we have finally disconnected, clean up our
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* pending device state.
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* XXX - There may be error states that cause where
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* we will remain connected.
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*/
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ccb_path = ccb->ccb_h.path;
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if (ahc->pending_device != NULL
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&& xpt_path_comp(ahc->pending_device->path, ccb_path) == 0) {
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if ((ccb->ccb_h.flags & CAM_SEND_STATUS) != 0) {
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ahc->pending_device = NULL;
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} else {
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if (bootverbose) {
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xpt_print_path(ccb->ccb_h.path);
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printf("Still connected\n");
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}
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aic_freeze_ccb(ccb);
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}
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}
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if (aic_get_transaction_status(scb) == CAM_REQ_INPROG)
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ccb->ccb_h.status |= CAM_REQ_CMP;
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ccb->ccb_h.status &= ~CAM_SIM_QUEUED;
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ahc_free_scb(ahc, scb);
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xpt_done(ccb);
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return;
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}
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|
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/*
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* If the recovery SCB completes, we have to be
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* out of our timeout.
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*/
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if ((scb->flags & SCB_RECOVERY_SCB) != 0) {
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struct scb *list_scb;
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ahc->scb_data->recovery_scbs--;
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|
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if (aic_get_transaction_status(scb) == CAM_BDR_SENT
|
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|| aic_get_transaction_status(scb) == CAM_REQ_ABORTED)
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aic_set_transaction_status(scb, CAM_CMD_TIMEOUT);
|
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|
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if (ahc->scb_data->recovery_scbs == 0) {
|
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/*
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* All recovery actions have completed successfully,
|
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* so reinstate the timeouts for all other pending
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* commands.
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*/
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LIST_FOREACH(list_scb, &ahc->pending_scbs,
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pending_links) {
|
|
|
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aic_scb_timer_reset(list_scb,
|
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aic_get_timeout(scb));
|
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}
|
|
|
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ahc_print_path(ahc, scb);
|
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printf("no longer in timeout, status = %x\n",
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ccb->ccb_h.status);
|
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}
|
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}
|
|
|
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/* Don't clobber any existing error state */
|
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if (aic_get_transaction_status(scb) == CAM_REQ_INPROG) {
|
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ccb->ccb_h.status |= CAM_REQ_CMP;
|
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} else if ((scb->flags & SCB_SENSE) != 0) {
|
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/*
|
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* We performed autosense retrieval.
|
|
*
|
|
* Zero any sense not transferred by the
|
|
* device. The SCSI spec mandates that any
|
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* untransfered data should be assumed to be
|
|
* zero. Complete the 'bounce' of sense information
|
|
* through buffers accessible via bus-space by
|
|
* copying it into the clients csio.
|
|
*/
|
|
memset(&ccb->csio.sense_data, 0, sizeof(ccb->csio.sense_data));
|
|
memcpy(&ccb->csio.sense_data,
|
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ahc_get_sense_buf(ahc, scb),
|
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(aic_le32toh(scb->sg_list->len) & AHC_SG_LEN_MASK)
|
|
- ccb->csio.sense_resid);
|
|
scb->io_ctx->ccb_h.status |= CAM_AUTOSNS_VALID;
|
|
}
|
|
ccb->ccb_h.status &= ~CAM_SIM_QUEUED;
|
|
ahc_free_scb(ahc, scb);
|
|
xpt_done(ccb);
|
|
}
|
|
|
|
static void
|
|
ahc_action(struct cam_sim *sim, union ccb *ccb)
|
|
{
|
|
struct ahc_softc *ahc;
|
|
struct ahc_tmode_lstate *lstate;
|
|
u_int target_id;
|
|
u_int our_id;
|
|
long s;
|
|
|
|
CAM_DEBUG(ccb->ccb_h.path, CAM_DEBUG_TRACE, ("ahc_action\n"));
|
|
|
|
ahc = (struct ahc_softc *)cam_sim_softc(sim);
|
|
|
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target_id = ccb->ccb_h.target_id;
|
|
our_id = SIM_SCSI_ID(ahc, sim);
|
|
|
|
switch (ccb->ccb_h.func_code) {
|
|
/* Common cases first */
|
|
case XPT_ACCEPT_TARGET_IO: /* Accept Host Target Mode CDB */
|
|
case XPT_CONT_TARGET_IO:/* Continue Host Target I/O Connection*/
|
|
{
|
|
struct ahc_tmode_tstate *tstate;
|
|
cam_status status;
|
|
|
|
status = ahc_find_tmode_devs(ahc, sim, ccb, &tstate,
|
|
&lstate, TRUE);
|
|
|
|
if (status != CAM_REQ_CMP) {
|
|
if (ccb->ccb_h.func_code == XPT_CONT_TARGET_IO) {
|
|
/* Response from the black hole device */
|
|
tstate = NULL;
|
|
lstate = ahc->black_hole;
|
|
} else {
|
|
ccb->ccb_h.status = status;
|
|
xpt_done(ccb);
|
|
break;
|
|
}
|
|
}
|
|
if (ccb->ccb_h.func_code == XPT_ACCEPT_TARGET_IO) {
|
|
|
|
ahc_lock(ahc, &s);
|
|
SLIST_INSERT_HEAD(&lstate->accept_tios, &ccb->ccb_h,
|
|
sim_links.sle);
|
|
ccb->ccb_h.status = CAM_REQ_INPROG;
|
|
if ((ahc->flags & AHC_TQINFIFO_BLOCKED) != 0)
|
|
ahc_run_tqinfifo(ahc, /*paused*/FALSE);
|
|
ahc_unlock(ahc, &s);
|
|
break;
|
|
}
|
|
|
|
/*
|
|
* The target_id represents the target we attempt to
|
|
* select. In target mode, this is the initiator of
|
|
* the original command.
|
|
*/
|
|
our_id = target_id;
|
|
target_id = ccb->csio.init_id;
|
|
/* FALLTHROUGH */
|
|
}
|
|
case XPT_SCSI_IO: /* Execute the requested I/O operation */
|
|
case XPT_RESET_DEV: /* Bus Device Reset the specified SCSI device */
|
|
{
|
|
struct scb *scb;
|
|
struct hardware_scb *hscb;
|
|
|
|
if ((ahc->flags & AHC_INITIATORROLE) == 0
|
|
&& (ccb->ccb_h.func_code == XPT_SCSI_IO
|
|
|| ccb->ccb_h.func_code == XPT_RESET_DEV)) {
|
|
ccb->ccb_h.status = CAM_PROVIDE_FAIL;
|
|
xpt_done(ccb);
|
|
return;
|
|
}
|
|
|
|
/*
|
|
* get an scb to use.
|
|
*/
|
|
ahc_lock(ahc, &s);
|
|
if ((scb = ahc_get_scb(ahc)) == NULL) {
|
|
|
|
xpt_freeze_simq(sim, /*count*/1);
|
|
ahc->flags |= AHC_RESOURCE_SHORTAGE;
|
|
ahc_unlock(ahc, &s);
|
|
ccb->ccb_h.status = CAM_REQUEUE_REQ;
|
|
xpt_done(ccb);
|
|
return;
|
|
}
|
|
ahc_unlock(ahc, &s);
|
|
|
|
hscb = scb->hscb;
|
|
|
|
CAM_DEBUG(ccb->ccb_h.path, CAM_DEBUG_SUBTRACE,
|
|
("start scb(%p)\n", scb));
|
|
scb->io_ctx = ccb;
|
|
/*
|
|
* So we can find the SCB when an abort is requested
|
|
*/
|
|
ccb->ccb_h.ccb_scb_ptr = scb;
|
|
|
|
/*
|
|
* Put all the arguments for the xfer in the scb
|
|
*/
|
|
hscb->control = 0;
|
|
hscb->scsiid = BUILD_SCSIID(ahc, sim, target_id, our_id);
|
|
hscb->lun = ccb->ccb_h.target_lun;
|
|
if (ccb->ccb_h.func_code == XPT_RESET_DEV) {
|
|
hscb->cdb_len = 0;
|
|
scb->flags |= SCB_DEVICE_RESET;
|
|
hscb->control |= MK_MESSAGE;
|
|
ahc_execute_scb(scb, NULL, 0, 0);
|
|
} else {
|
|
if (ccb->ccb_h.func_code == XPT_CONT_TARGET_IO) {
|
|
struct target_data *tdata;
|
|
|
|
tdata = &hscb->shared_data.tdata;
|
|
if (ahc->pending_device == lstate)
|
|
scb->flags |= SCB_TARGET_IMMEDIATE;
|
|
hscb->control |= TARGET_SCB;
|
|
scb->flags |= SCB_TARGET_SCB;
|
|
tdata->target_phases = 0;
|
|
if ((ccb->ccb_h.flags & CAM_SEND_STATUS) != 0) {
|
|
tdata->target_phases |= SPHASE_PENDING;
|
|
tdata->scsi_status =
|
|
ccb->csio.scsi_status;
|
|
}
|
|
if (ccb->ccb_h.flags & CAM_DIS_DISCONNECT)
|
|
tdata->target_phases |= NO_DISCONNECT;
|
|
|
|
tdata->initiator_tag = ccb->csio.tag_id;
|
|
}
|
|
if (ccb->ccb_h.flags & CAM_TAG_ACTION_VALID)
|
|
hscb->control |= ccb->csio.tag_action;
|
|
|
|
ahc_setup_data(ahc, sim, &ccb->csio, scb);
|
|
}
|
|
break;
|
|
}
|
|
case XPT_NOTIFY_ACK:
|
|
case XPT_IMMED_NOTIFY:
|
|
{
|
|
struct ahc_tmode_tstate *tstate;
|
|
struct ahc_tmode_lstate *lstate;
|
|
cam_status status;
|
|
|
|
status = ahc_find_tmode_devs(ahc, sim, ccb, &tstate,
|
|
&lstate, TRUE);
|
|
|
|
if (status != CAM_REQ_CMP) {
|
|
ccb->ccb_h.status = status;
|
|
xpt_done(ccb);
|
|
break;
|
|
}
|
|
SLIST_INSERT_HEAD(&lstate->immed_notifies, &ccb->ccb_h,
|
|
sim_links.sle);
|
|
ccb->ccb_h.status = CAM_REQ_INPROG;
|
|
ahc_send_lstate_events(ahc, lstate);
|
|
break;
|
|
}
|
|
case XPT_EN_LUN: /* Enable LUN as a target */
|
|
ahc_handle_en_lun(ahc, sim, ccb);
|
|
xpt_done(ccb);
|
|
break;
|
|
case XPT_ABORT: /* Abort the specified CCB */
|
|
{
|
|
ahc_abort_ccb(ahc, sim, ccb);
|
|
break;
|
|
}
|
|
case XPT_SET_TRAN_SETTINGS:
|
|
{
|
|
#ifdef AHC_NEW_TRAN_SETTINGS
|
|
struct ahc_devinfo devinfo;
|
|
struct ccb_trans_settings *cts;
|
|
struct ccb_trans_settings_scsi *scsi;
|
|
struct ccb_trans_settings_spi *spi;
|
|
struct ahc_initiator_tinfo *tinfo;
|
|
struct ahc_tmode_tstate *tstate;
|
|
uint16_t *discenable;
|
|
uint16_t *tagenable;
|
|
u_int update_type;
|
|
|
|
cts = &ccb->cts;
|
|
scsi = &cts->proto_specific.scsi;
|
|
spi = &cts->xport_specific.spi;
|
|
ahc_compile_devinfo(&devinfo, SIM_SCSI_ID(ahc, sim),
|
|
cts->ccb_h.target_id,
|
|
cts->ccb_h.target_lun,
|
|
SIM_CHANNEL(ahc, sim),
|
|
ROLE_UNKNOWN);
|
|
tinfo = ahc_fetch_transinfo(ahc, devinfo.channel,
|
|
devinfo.our_scsiid,
|
|
devinfo.target, &tstate);
|
|
update_type = 0;
|
|
if (cts->type == CTS_TYPE_CURRENT_SETTINGS) {
|
|
update_type |= AHC_TRANS_GOAL;
|
|
discenable = &tstate->discenable;
|
|
tagenable = &tstate->tagenable;
|
|
tinfo->curr.protocol_version =
|
|
cts->protocol_version;
|
|
tinfo->curr.transport_version =
|
|
cts->transport_version;
|
|
tinfo->goal.protocol_version =
|
|
cts->protocol_version;
|
|
tinfo->goal.transport_version =
|
|
cts->transport_version;
|
|
} else if (cts->type == CTS_TYPE_USER_SETTINGS) {
|
|
update_type |= AHC_TRANS_USER;
|
|
discenable = &ahc->user_discenable;
|
|
tagenable = &ahc->user_tagenable;
|
|
tinfo->user.protocol_version =
|
|
cts->protocol_version;
|
|
tinfo->user.transport_version =
|
|
cts->transport_version;
|
|
} else {
|
|
ccb->ccb_h.status = CAM_REQ_INVALID;
|
|
xpt_done(ccb);
|
|
break;
|
|
}
|
|
|
|
ahc_lock(ahc, &s);
|
|
|
|
if ((spi->valid & CTS_SPI_VALID_DISC) != 0) {
|
|
if ((spi->flags & CTS_SPI_FLAGS_DISC_ENB) != 0)
|
|
*discenable |= devinfo.target_mask;
|
|
else
|
|
*discenable &= ~devinfo.target_mask;
|
|
}
|
|
|
|
if ((scsi->valid & CTS_SCSI_VALID_TQ) != 0) {
|
|
if ((scsi->flags & CTS_SCSI_FLAGS_TAG_ENB) != 0)
|
|
*tagenable |= devinfo.target_mask;
|
|
else
|
|
*tagenable &= ~devinfo.target_mask;
|
|
}
|
|
|
|
if ((spi->valid & CTS_SPI_VALID_BUS_WIDTH) != 0) {
|
|
ahc_validate_width(ahc, /*tinfo limit*/NULL,
|
|
&spi->bus_width, ROLE_UNKNOWN);
|
|
ahc_set_width(ahc, &devinfo, spi->bus_width,
|
|
update_type, /*paused*/FALSE);
|
|
}
|
|
|
|
if ((spi->valid & CTS_SPI_VALID_PPR_OPTIONS) == 0) {
|
|
if (update_type == AHC_TRANS_USER)
|
|
spi->ppr_options = tinfo->user.ppr_options;
|
|
else
|
|
spi->ppr_options = tinfo->goal.ppr_options;
|
|
}
|
|
|
|
if ((spi->valid & CTS_SPI_VALID_SYNC_OFFSET) == 0) {
|
|
if (update_type == AHC_TRANS_USER)
|
|
spi->sync_offset = tinfo->user.offset;
|
|
else
|
|
spi->sync_offset = tinfo->goal.offset;
|
|
}
|
|
|
|
if ((spi->valid & CTS_SPI_VALID_SYNC_RATE) == 0) {
|
|
if (update_type == AHC_TRANS_USER)
|
|
spi->sync_period = tinfo->user.period;
|
|
else
|
|
spi->sync_period = tinfo->goal.period;
|
|
}
|
|
|
|
if (((spi->valid & CTS_SPI_VALID_SYNC_RATE) != 0)
|
|
|| ((spi->valid & CTS_SPI_VALID_SYNC_OFFSET) != 0)) {
|
|
struct ahc_syncrate *syncrate;
|
|
u_int maxsync;
|
|
|
|
if ((ahc->features & AHC_ULTRA2) != 0)
|
|
maxsync = AHC_SYNCRATE_DT;
|
|
else if ((ahc->features & AHC_ULTRA) != 0)
|
|
maxsync = AHC_SYNCRATE_ULTRA;
|
|
else
|
|
maxsync = AHC_SYNCRATE_FAST;
|
|
|
|
if (spi->bus_width != MSG_EXT_WDTR_BUS_16_BIT)
|
|
spi->ppr_options &= ~MSG_EXT_PPR_DT_REQ;
|
|
|
|
syncrate = ahc_find_syncrate(ahc, &spi->sync_period,
|
|
&spi->ppr_options,
|
|
maxsync);
|
|
ahc_validate_offset(ahc, /*tinfo limit*/NULL,
|
|
syncrate, &spi->sync_offset,
|
|
spi->bus_width, ROLE_UNKNOWN);
|
|
|
|
/* We use a period of 0 to represent async */
|
|
if (spi->sync_offset == 0) {
|
|
spi->sync_period = 0;
|
|
spi->ppr_options = 0;
|
|
}
|
|
|
|
ahc_set_syncrate(ahc, &devinfo, syncrate,
|
|
spi->sync_period, spi->sync_offset,
|
|
spi->ppr_options, update_type,
|
|
/*paused*/FALSE);
|
|
}
|
|
ahc_unlock(ahc, &s);
|
|
ccb->ccb_h.status = CAM_REQ_CMP;
|
|
xpt_done(ccb);
|
|
#else
|
|
struct ahc_devinfo devinfo;
|
|
struct ccb_trans_settings *cts;
|
|
struct ahc_initiator_tinfo *tinfo;
|
|
struct ahc_tmode_tstate *tstate;
|
|
uint16_t *discenable;
|
|
uint16_t *tagenable;
|
|
u_int update_type;
|
|
long s;
|
|
|
|
cts = &ccb->cts;
|
|
ahc_compile_devinfo(&devinfo, SIM_SCSI_ID(ahc, sim),
|
|
cts->ccb_h.target_id,
|
|
cts->ccb_h.target_lun,
|
|
SIM_CHANNEL(ahc, sim),
|
|
ROLE_UNKNOWN);
|
|
tinfo = ahc_fetch_transinfo(ahc, devinfo.channel,
|
|
devinfo.our_scsiid,
|
|
devinfo.target, &tstate);
|
|
update_type = 0;
|
|
if ((cts->flags & CCB_TRANS_CURRENT_SETTINGS) != 0) {
|
|
update_type |= AHC_TRANS_GOAL;
|
|
discenable = &tstate->discenable;
|
|
tagenable = &tstate->tagenable;
|
|
} else if ((cts->flags & CCB_TRANS_USER_SETTINGS) != 0) {
|
|
update_type |= AHC_TRANS_USER;
|
|
discenable = &ahc->user_discenable;
|
|
tagenable = &ahc->user_tagenable;
|
|
} else {
|
|
ccb->ccb_h.status = CAM_REQ_INVALID;
|
|
xpt_done(ccb);
|
|
break;
|
|
}
|
|
|
|
ahc_lock(ahc, &s);
|
|
|
|
if ((cts->valid & CCB_TRANS_DISC_VALID) != 0) {
|
|
if ((cts->flags & CCB_TRANS_DISC_ENB) != 0)
|
|
*discenable |= devinfo.target_mask;
|
|
else
|
|
*discenable &= ~devinfo.target_mask;
|
|
}
|
|
|
|
if ((cts->valid & CCB_TRANS_TQ_VALID) != 0) {
|
|
if ((cts->flags & CCB_TRANS_TAG_ENB) != 0)
|
|
*tagenable |= devinfo.target_mask;
|
|
else
|
|
*tagenable &= ~devinfo.target_mask;
|
|
}
|
|
|
|
if ((cts->valid & CCB_TRANS_BUS_WIDTH_VALID) != 0) {
|
|
ahc_validate_width(ahc, /*tinfo limit*/NULL,
|
|
&cts->bus_width, ROLE_UNKNOWN);
|
|
ahc_set_width(ahc, &devinfo, cts->bus_width,
|
|
update_type, /*paused*/FALSE);
|
|
}
|
|
|
|
if ((cts->valid & CCB_TRANS_SYNC_OFFSET_VALID) == 0) {
|
|
if (update_type == AHC_TRANS_USER)
|
|
cts->sync_offset = tinfo->user.offset;
|
|
else
|
|
cts->sync_offset = tinfo->goal.offset;
|
|
}
|
|
|
|
if ((cts->valid & CCB_TRANS_SYNC_RATE_VALID) == 0) {
|
|
if (update_type == AHC_TRANS_USER)
|
|
cts->sync_period = tinfo->user.period;
|
|
else
|
|
cts->sync_period = tinfo->goal.period;
|
|
}
|
|
|
|
if (((cts->valid & CCB_TRANS_SYNC_RATE_VALID) != 0)
|
|
|| ((cts->valid & CCB_TRANS_SYNC_OFFSET_VALID) != 0)) {
|
|
struct ahc_syncrate *syncrate;
|
|
u_int ppr_options;
|
|
u_int maxsync;
|
|
|
|
if ((ahc->features & AHC_ULTRA2) != 0)
|
|
maxsync = AHC_SYNCRATE_DT;
|
|
else if ((ahc->features & AHC_ULTRA) != 0)
|
|
maxsync = AHC_SYNCRATE_ULTRA;
|
|
else
|
|
maxsync = AHC_SYNCRATE_FAST;
|
|
|
|
ppr_options = 0;
|
|
if (cts->sync_period <= 9
|
|
&& cts->bus_width == MSG_EXT_WDTR_BUS_16_BIT)
|
|
ppr_options = MSG_EXT_PPR_DT_REQ;
|
|
|
|
syncrate = ahc_find_syncrate(ahc, &cts->sync_period,
|
|
&ppr_options,
|
|
maxsync);
|
|
ahc_validate_offset(ahc, /*tinfo limit*/NULL,
|
|
syncrate, &cts->sync_offset,
|
|
MSG_EXT_WDTR_BUS_8_BIT,
|
|
ROLE_UNKNOWN);
|
|
|
|
/* We use a period of 0 to represent async */
|
|
if (cts->sync_offset == 0) {
|
|
cts->sync_period = 0;
|
|
ppr_options = 0;
|
|
}
|
|
|
|
if (ppr_options == MSG_EXT_PPR_DT_REQ
|
|
&& tinfo->user.transport_version >= 3) {
|
|
tinfo->goal.transport_version =
|
|
tinfo->user.transport_version;
|
|
tinfo->curr.transport_version =
|
|
tinfo->user.transport_version;
|
|
}
|
|
|
|
ahc_set_syncrate(ahc, &devinfo, syncrate,
|
|
cts->sync_period, cts->sync_offset,
|
|
ppr_options, update_type,
|
|
/*paused*/FALSE);
|
|
}
|
|
ahc_unlock(ahc, &s);
|
|
ccb->ccb_h.status = CAM_REQ_CMP;
|
|
xpt_done(ccb);
|
|
#endif
|
|
break;
|
|
}
|
|
case XPT_GET_TRAN_SETTINGS:
|
|
/* Get default/user set transfer settings for the target */
|
|
{
|
|
|
|
ahc_lock(ahc, &s);
|
|
ahc_get_tran_settings(ahc, SIM_SCSI_ID(ahc, sim),
|
|
SIM_CHANNEL(ahc, sim), &ccb->cts);
|
|
ahc_unlock(ahc, &s);
|
|
xpt_done(ccb);
|
|
break;
|
|
}
|
|
case XPT_CALC_GEOMETRY:
|
|
{
|
|
int extended;
|
|
|
|
extended = SIM_IS_SCSIBUS_B(ahc, sim)
|
|
? ahc->flags & AHC_EXTENDED_TRANS_B
|
|
: ahc->flags & AHC_EXTENDED_TRANS_A;
|
|
aic_calc_geometry(&ccb->ccg, extended);
|
|
xpt_done(ccb);
|
|
break;
|
|
}
|
|
case XPT_RESET_BUS: /* Reset the specified SCSI bus */
|
|
{
|
|
int found;
|
|
|
|
ahc_lock(ahc, &s);
|
|
found = ahc_reset_channel(ahc, SIM_CHANNEL(ahc, sim),
|
|
/*initiate reset*/TRUE);
|
|
ahc_unlock(ahc, &s);
|
|
if (bootverbose) {
|
|
xpt_print_path(SIM_PATH(ahc, sim));
|
|
printf("SCSI bus reset delivered. "
|
|
"%d SCBs aborted.\n", found);
|
|
}
|
|
ccb->ccb_h.status = CAM_REQ_CMP;
|
|
xpt_done(ccb);
|
|
break;
|
|
}
|
|
case XPT_TERM_IO: /* Terminate the I/O process */
|
|
/* XXX Implement */
|
|
ccb->ccb_h.status = CAM_REQ_INVALID;
|
|
xpt_done(ccb);
|
|
break;
|
|
case XPT_PATH_INQ: /* Path routing inquiry */
|
|
{
|
|
struct ccb_pathinq *cpi = &ccb->cpi;
|
|
|
|
cpi->version_num = 1; /* XXX??? */
|
|
cpi->hba_inquiry = PI_SDTR_ABLE|PI_TAG_ABLE;
|
|
if ((ahc->features & AHC_WIDE) != 0)
|
|
cpi->hba_inquiry |= PI_WIDE_16;
|
|
if ((ahc->features & AHC_TARGETMODE) != 0) {
|
|
cpi->target_sprt = PIT_PROCESSOR
|
|
| PIT_DISCONNECT
|
|
| PIT_TERM_IO;
|
|
} else {
|
|
cpi->target_sprt = 0;
|
|
}
|
|
cpi->hba_misc = 0;
|
|
cpi->hba_eng_cnt = 0;
|
|
cpi->max_target = (ahc->features & AHC_WIDE) ? 15 : 7;
|
|
cpi->max_lun = AHC_NUM_LUNS - 1;
|
|
if (SIM_IS_SCSIBUS_B(ahc, sim)) {
|
|
cpi->initiator_id = ahc->our_id_b;
|
|
if ((ahc->flags & AHC_RESET_BUS_B) == 0)
|
|
cpi->hba_misc |= PIM_NOBUSRESET;
|
|
} else {
|
|
cpi->initiator_id = ahc->our_id;
|
|
if ((ahc->flags & AHC_RESET_BUS_A) == 0)
|
|
cpi->hba_misc |= PIM_NOBUSRESET;
|
|
}
|
|
cpi->bus_id = cam_sim_bus(sim);
|
|
cpi->base_transfer_speed = 3300;
|
|
strncpy(cpi->sim_vid, "FreeBSD", SIM_IDLEN);
|
|
strncpy(cpi->hba_vid, "Adaptec", HBA_IDLEN);
|
|
strncpy(cpi->dev_name, cam_sim_name(sim), DEV_IDLEN);
|
|
cpi->unit_number = cam_sim_unit(sim);
|
|
#ifdef AHC_NEW_TRAN_SETTINGS
|
|
cpi->protocol = PROTO_SCSI;
|
|
cpi->protocol_version = SCSI_REV_2;
|
|
cpi->transport = XPORT_SPI;
|
|
cpi->transport_version = 2;
|
|
cpi->xport_specific.spi.ppr_options = SID_SPI_CLOCK_ST;
|
|
if ((ahc->features & AHC_DT) != 0) {
|
|
cpi->transport_version = 3;
|
|
cpi->xport_specific.spi.ppr_options =
|
|
SID_SPI_CLOCK_DT_ST;
|
|
}
|
|
#endif
|
|
cpi->ccb_h.status = CAM_REQ_CMP;
|
|
xpt_done(ccb);
|
|
break;
|
|
}
|
|
default:
|
|
ccb->ccb_h.status = CAM_PROVIDE_FAIL;
|
|
xpt_done(ccb);
|
|
break;
|
|
}
|
|
}
|
|
|
|
static void
|
|
ahc_get_tran_settings(struct ahc_softc *ahc, int our_id, char channel,
|
|
struct ccb_trans_settings *cts)
|
|
{
|
|
#ifdef AHC_NEW_TRAN_SETTINGS
|
|
struct ahc_devinfo devinfo;
|
|
struct ccb_trans_settings_scsi *scsi;
|
|
struct ccb_trans_settings_spi *spi;
|
|
struct ahc_initiator_tinfo *targ_info;
|
|
struct ahc_tmode_tstate *tstate;
|
|
struct ahc_transinfo *tinfo;
|
|
|
|
scsi = &cts->proto_specific.scsi;
|
|
spi = &cts->xport_specific.spi;
|
|
ahc_compile_devinfo(&devinfo, our_id,
|
|
cts->ccb_h.target_id,
|
|
cts->ccb_h.target_lun,
|
|
channel, ROLE_UNKNOWN);
|
|
targ_info = ahc_fetch_transinfo(ahc, devinfo.channel,
|
|
devinfo.our_scsiid,
|
|
devinfo.target, &tstate);
|
|
|
|
if (cts->type == CTS_TYPE_CURRENT_SETTINGS)
|
|
tinfo = &targ_info->curr;
|
|
else
|
|
tinfo = &targ_info->user;
|
|
|
|
scsi->flags &= ~CTS_SCSI_FLAGS_TAG_ENB;
|
|
spi->flags &= ~CTS_SPI_FLAGS_DISC_ENB;
|
|
if (cts->type == CTS_TYPE_USER_SETTINGS) {
|
|
if ((ahc->user_discenable & devinfo.target_mask) != 0)
|
|
spi->flags |= CTS_SPI_FLAGS_DISC_ENB;
|
|
|
|
if ((ahc->user_tagenable & devinfo.target_mask) != 0)
|
|
scsi->flags |= CTS_SCSI_FLAGS_TAG_ENB;
|
|
} else {
|
|
if ((tstate->discenable & devinfo.target_mask) != 0)
|
|
spi->flags |= CTS_SPI_FLAGS_DISC_ENB;
|
|
|
|
if ((tstate->tagenable & devinfo.target_mask) != 0)
|
|
scsi->flags |= CTS_SCSI_FLAGS_TAG_ENB;
|
|
}
|
|
cts->protocol_version = tinfo->protocol_version;
|
|
cts->transport_version = tinfo->transport_version;
|
|
|
|
spi->sync_period = tinfo->period;
|
|
spi->sync_offset = tinfo->offset;
|
|
spi->bus_width = tinfo->width;
|
|
spi->ppr_options = tinfo->ppr_options;
|
|
|
|
cts->protocol = PROTO_SCSI;
|
|
cts->transport = XPORT_SPI;
|
|
spi->valid = CTS_SPI_VALID_SYNC_RATE
|
|
| CTS_SPI_VALID_SYNC_OFFSET
|
|
| CTS_SPI_VALID_BUS_WIDTH
|
|
| CTS_SPI_VALID_PPR_OPTIONS;
|
|
|
|
if (cts->ccb_h.target_lun != CAM_LUN_WILDCARD) {
|
|
scsi->valid = CTS_SCSI_VALID_TQ;
|
|
spi->valid |= CTS_SPI_VALID_DISC;
|
|
} else {
|
|
scsi->valid = 0;
|
|
}
|
|
|
|
cts->ccb_h.status = CAM_REQ_CMP;
|
|
#else
|
|
struct ahc_devinfo devinfo;
|
|
struct ahc_initiator_tinfo *targ_info;
|
|
struct ahc_tmode_tstate *tstate;
|
|
struct ahc_transinfo *tinfo;
|
|
|
|
ahc_compile_devinfo(&devinfo, our_id,
|
|
cts->ccb_h.target_id,
|
|
cts->ccb_h.target_lun,
|
|
channel, ROLE_UNKNOWN);
|
|
targ_info = ahc_fetch_transinfo(ahc, devinfo.channel,
|
|
devinfo.our_scsiid,
|
|
devinfo.target, &tstate);
|
|
|
|
if ((cts->flags & CCB_TRANS_CURRENT_SETTINGS) != 0)
|
|
tinfo = &targ_info->curr;
|
|
else
|
|
tinfo = &targ_info->user;
|
|
|
|
cts->flags &= ~(CCB_TRANS_DISC_ENB|CCB_TRANS_TAG_ENB);
|
|
if ((cts->flags & CCB_TRANS_CURRENT_SETTINGS) == 0) {
|
|
if ((ahc->user_discenable & devinfo.target_mask) != 0)
|
|
cts->flags |= CCB_TRANS_DISC_ENB;
|
|
|
|
if ((ahc->user_tagenable & devinfo.target_mask) != 0)
|
|
cts->flags |= CCB_TRANS_TAG_ENB;
|
|
} else {
|
|
if ((tstate->discenable & devinfo.target_mask) != 0)
|
|
cts->flags |= CCB_TRANS_DISC_ENB;
|
|
|
|
if ((tstate->tagenable & devinfo.target_mask) != 0)
|
|
cts->flags |= CCB_TRANS_TAG_ENB;
|
|
}
|
|
cts->sync_period = tinfo->period;
|
|
cts->sync_offset = tinfo->offset;
|
|
cts->bus_width = tinfo->width;
|
|
|
|
cts->valid = CCB_TRANS_SYNC_RATE_VALID
|
|
| CCB_TRANS_SYNC_OFFSET_VALID
|
|
| CCB_TRANS_BUS_WIDTH_VALID;
|
|
|
|
if (cts->ccb_h.target_lun != CAM_LUN_WILDCARD)
|
|
cts->valid |= CCB_TRANS_DISC_VALID|CCB_TRANS_TQ_VALID;
|
|
|
|
cts->ccb_h.status = CAM_REQ_CMP;
|
|
#endif
|
|
}
|
|
|
|
static void
|
|
ahc_async(void *callback_arg, uint32_t code, struct cam_path *path, void *arg)
|
|
{
|
|
struct ahc_softc *ahc;
|
|
struct cam_sim *sim;
|
|
|
|
sim = (struct cam_sim *)callback_arg;
|
|
ahc = (struct ahc_softc *)cam_sim_softc(sim);
|
|
switch (code) {
|
|
case AC_LOST_DEVICE:
|
|
{
|
|
struct ahc_devinfo devinfo;
|
|
long s;
|
|
|
|
ahc_compile_devinfo(&devinfo, SIM_SCSI_ID(ahc, sim),
|
|
xpt_path_target_id(path),
|
|
xpt_path_lun_id(path),
|
|
SIM_CHANNEL(ahc, sim),
|
|
ROLE_UNKNOWN);
|
|
|
|
/*
|
|
* Revert to async/narrow transfers
|
|
* for the next device.
|
|
*/
|
|
ahc_lock(ahc, &s);
|
|
ahc_set_width(ahc, &devinfo, MSG_EXT_WDTR_BUS_8_BIT,
|
|
AHC_TRANS_GOAL|AHC_TRANS_CUR, /*paused*/FALSE);
|
|
ahc_set_syncrate(ahc, &devinfo, /*syncrate*/NULL,
|
|
/*period*/0, /*offset*/0, /*ppr_options*/0,
|
|
AHC_TRANS_GOAL|AHC_TRANS_CUR,
|
|
/*paused*/FALSE);
|
|
ahc_unlock(ahc, &s);
|
|
break;
|
|
}
|
|
default:
|
|
break;
|
|
}
|
|
}
|
|
|
|
static void
|
|
ahc_execute_scb(void *arg, bus_dma_segment_t *dm_segs, int nsegments,
|
|
int error)
|
|
{
|
|
struct scb *scb;
|
|
union ccb *ccb;
|
|
struct ahc_softc *ahc;
|
|
struct ahc_initiator_tinfo *tinfo;
|
|
struct ahc_tmode_tstate *tstate;
|
|
u_int mask;
|
|
long s;
|
|
|
|
scb = (struct scb *)arg;
|
|
ccb = scb->io_ctx;
|
|
ahc = scb->ahc_softc;
|
|
|
|
if (error != 0) {
|
|
if (error == EFBIG)
|
|
aic_set_transaction_status(scb, CAM_REQ_TOO_BIG);
|
|
else
|
|
aic_set_transaction_status(scb, CAM_REQ_CMP_ERR);
|
|
if (nsegments != 0)
|
|
bus_dmamap_unload(ahc->buffer_dmat, scb->dmamap);
|
|
ahc_lock(ahc, &s);
|
|
ahc_free_scb(ahc, scb);
|
|
ahc_unlock(ahc, &s);
|
|
xpt_done(ccb);
|
|
return;
|
|
}
|
|
if (nsegments != 0) {
|
|
struct ahc_dma_seg *sg;
|
|
bus_dma_segment_t *end_seg;
|
|
bus_dmasync_op_t op;
|
|
|
|
end_seg = dm_segs + nsegments;
|
|
|
|
/* Copy the segments into our SG list */
|
|
sg = scb->sg_list;
|
|
while (dm_segs < end_seg) {
|
|
uint32_t len;
|
|
|
|
sg->addr = aic_htole32(dm_segs->ds_addr);
|
|
len = dm_segs->ds_len
|
|
| ((dm_segs->ds_addr >> 8) & 0x7F000000);
|
|
sg->len = aic_htole32(len);
|
|
sg++;
|
|
dm_segs++;
|
|
}
|
|
|
|
/*
|
|
* Note where to find the SG entries in bus space.
|
|
* We also set the full residual flag which the
|
|
* sequencer will clear as soon as a data transfer
|
|
* occurs.
|
|
*/
|
|
scb->hscb->sgptr = aic_htole32(scb->sg_list_phys|SG_FULL_RESID);
|
|
|
|
if ((ccb->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_IN)
|
|
op = BUS_DMASYNC_PREREAD;
|
|
else
|
|
op = BUS_DMASYNC_PREWRITE;
|
|
|
|
bus_dmamap_sync(ahc->buffer_dmat, scb->dmamap, op);
|
|
|
|
if (ccb->ccb_h.func_code == XPT_CONT_TARGET_IO) {
|
|
struct target_data *tdata;
|
|
|
|
tdata = &scb->hscb->shared_data.tdata;
|
|
tdata->target_phases |= DPHASE_PENDING;
|
|
/*
|
|
* CAM data direction is relative to the initiator.
|
|
*/
|
|
if ((ccb->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_OUT)
|
|
tdata->data_phase = P_DATAOUT;
|
|
else
|
|
tdata->data_phase = P_DATAIN;
|
|
|
|
/*
|
|
* If the transfer is of an odd length and in the
|
|
* "in" direction (scsi->HostBus), then it may
|
|
* trigger a bug in the 'WideODD' feature of
|
|
* non-Ultra2 chips. Force the total data-length
|
|
* to be even by adding an extra, 1 byte, SG,
|
|
* element. We do this even if we are not currently
|
|
* negotiated wide as negotiation could occur before
|
|
* this command is executed.
|
|
*/
|
|
if ((ahc->bugs & AHC_TMODE_WIDEODD_BUG) != 0
|
|
&& (ccb->csio.dxfer_len & 0x1) != 0
|
|
&& (ccb->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_OUT) {
|
|
|
|
nsegments++;
|
|
if (nsegments > AHC_NSEG) {
|
|
|
|
aic_set_transaction_status(scb,
|
|
CAM_REQ_TOO_BIG);
|
|
bus_dmamap_unload(ahc->buffer_dmat,
|
|
scb->dmamap);
|
|
ahc_lock(ahc, &s);
|
|
ahc_free_scb(ahc, scb);
|
|
ahc_unlock(ahc, &s);
|
|
xpt_done(ccb);
|
|
return;
|
|
}
|
|
sg->addr = aic_htole32(ahc->dma_bug_buf);
|
|
sg->len = aic_htole32(1);
|
|
sg++;
|
|
}
|
|
}
|
|
sg--;
|
|
sg->len |= aic_htole32(AHC_DMA_LAST_SEG);
|
|
|
|
/* Copy the first SG into the "current" data pointer area */
|
|
scb->hscb->dataptr = scb->sg_list->addr;
|
|
scb->hscb->datacnt = scb->sg_list->len;
|
|
} else {
|
|
scb->hscb->sgptr = aic_htole32(SG_LIST_NULL);
|
|
scb->hscb->dataptr = 0;
|
|
scb->hscb->datacnt = 0;
|
|
}
|
|
|
|
scb->sg_count = nsegments;
|
|
|
|
ahc_lock(ahc, &s);
|
|
|
|
/*
|
|
* Last time we need to check if this SCB needs to
|
|
* be aborted.
|
|
*/
|
|
if (aic_get_transaction_status(scb) != CAM_REQ_INPROG) {
|
|
if (nsegments != 0)
|
|
bus_dmamap_unload(ahc->buffer_dmat, scb->dmamap);
|
|
ahc_free_scb(ahc, scb);
|
|
ahc_unlock(ahc, &s);
|
|
xpt_done(ccb);
|
|
return;
|
|
}
|
|
|
|
tinfo = ahc_fetch_transinfo(ahc, SCSIID_CHANNEL(ahc, scb->hscb->scsiid),
|
|
SCSIID_OUR_ID(scb->hscb->scsiid),
|
|
SCSIID_TARGET(ahc, scb->hscb->scsiid),
|
|
&tstate);
|
|
|
|
mask = SCB_GET_TARGET_MASK(ahc, scb);
|
|
scb->hscb->scsirate = tinfo->scsirate;
|
|
scb->hscb->scsioffset = tinfo->curr.offset;
|
|
if ((tstate->ultraenb & mask) != 0)
|
|
scb->hscb->control |= ULTRAENB;
|
|
|
|
if ((tstate->discenable & mask) != 0
|
|
&& (ccb->ccb_h.flags & CAM_DIS_DISCONNECT) == 0)
|
|
scb->hscb->control |= DISCENB;
|
|
|
|
if ((ccb->ccb_h.flags & CAM_NEGOTIATE) != 0
|
|
&& (tinfo->goal.width != 0
|
|
|| tinfo->goal.offset != 0
|
|
|| tinfo->goal.ppr_options != 0)) {
|
|
scb->flags |= SCB_NEGOTIATE;
|
|
scb->hscb->control |= MK_MESSAGE;
|
|
} else if ((tstate->auto_negotiate & mask) != 0) {
|
|
scb->flags |= SCB_AUTO_NEGOTIATE;
|
|
scb->hscb->control |= MK_MESSAGE;
|
|
}
|
|
|
|
LIST_INSERT_HEAD(&ahc->pending_scbs, scb, pending_links);
|
|
|
|
ccb->ccb_h.status |= CAM_SIM_QUEUED;
|
|
|
|
/*
|
|
* We only allow one untagged transaction
|
|
* per target in the initiator role unless
|
|
* we are storing a full busy target *lun*
|
|
* table in SCB space.
|
|
*/
|
|
if ((scb->hscb->control & (TARGET_SCB|TAG_ENB)) == 0
|
|
&& (ahc->flags & AHC_SCB_BTT) == 0) {
|
|
struct scb_tailq *untagged_q;
|
|
int target_offset;
|
|
|
|
target_offset = SCB_GET_TARGET_OFFSET(ahc, scb);
|
|
untagged_q = &(ahc->untagged_queues[target_offset]);
|
|
TAILQ_INSERT_TAIL(untagged_q, scb, links.tqe);
|
|
scb->flags |= SCB_UNTAGGEDQ;
|
|
if (TAILQ_FIRST(untagged_q) != scb) {
|
|
ahc_unlock(ahc, &s);
|
|
return;
|
|
}
|
|
}
|
|
scb->flags |= SCB_ACTIVE;
|
|
|
|
/*
|
|
* Timers are disabled while recovery is in progress.
|
|
*/
|
|
aic_scb_timer_start(scb);
|
|
|
|
if ((scb->flags & SCB_TARGET_IMMEDIATE) != 0) {
|
|
/* Define a mapping from our tag to the SCB. */
|
|
ahc->scb_data->scbindex[scb->hscb->tag] = scb;
|
|
ahc_pause(ahc);
|
|
if ((ahc->flags & AHC_PAGESCBS) == 0)
|
|
ahc_outb(ahc, SCBPTR, scb->hscb->tag);
|
|
ahc_outb(ahc, TARG_IMMEDIATE_SCB, scb->hscb->tag);
|
|
ahc_unpause(ahc);
|
|
} else {
|
|
ahc_queue_scb(ahc, scb);
|
|
}
|
|
|
|
ahc_unlock(ahc, &s);
|
|
}
|
|
|
|
static void
|
|
ahc_poll(struct cam_sim *sim)
|
|
{
|
|
struct ahc_softc *ahc;
|
|
|
|
ahc = (struct ahc_softc *)cam_sim_softc(sim);
|
|
ahc_intr(ahc);
|
|
}
|
|
|
|
static void
|
|
ahc_setup_data(struct ahc_softc *ahc, struct cam_sim *sim,
|
|
struct ccb_scsiio *csio, struct scb *scb)
|
|
{
|
|
struct hardware_scb *hscb;
|
|
struct ccb_hdr *ccb_h;
|
|
|
|
hscb = scb->hscb;
|
|
ccb_h = &csio->ccb_h;
|
|
|
|
csio->resid = 0;
|
|
csio->sense_resid = 0;
|
|
if (ccb_h->func_code == XPT_SCSI_IO) {
|
|
hscb->cdb_len = csio->cdb_len;
|
|
if ((ccb_h->flags & CAM_CDB_POINTER) != 0) {
|
|
|
|
if (hscb->cdb_len > sizeof(hscb->cdb32)
|
|
|| (ccb_h->flags & CAM_CDB_PHYS) != 0) {
|
|
u_long s;
|
|
|
|
aic_set_transaction_status(scb,
|
|
CAM_REQ_INVALID);
|
|
ahc_lock(ahc, &s);
|
|
ahc_free_scb(ahc, scb);
|
|
ahc_unlock(ahc, &s);
|
|
xpt_done((union ccb *)csio);
|
|
return;
|
|
}
|
|
if (hscb->cdb_len > 12) {
|
|
memcpy(hscb->cdb32,
|
|
csio->cdb_io.cdb_ptr,
|
|
hscb->cdb_len);
|
|
scb->flags |= SCB_CDB32_PTR;
|
|
} else {
|
|
memcpy(hscb->shared_data.cdb,
|
|
csio->cdb_io.cdb_ptr,
|
|
hscb->cdb_len);
|
|
}
|
|
} else {
|
|
if (hscb->cdb_len > 12) {
|
|
memcpy(hscb->cdb32, csio->cdb_io.cdb_bytes,
|
|
hscb->cdb_len);
|
|
scb->flags |= SCB_CDB32_PTR;
|
|
} else {
|
|
memcpy(hscb->shared_data.cdb,
|
|
csio->cdb_io.cdb_bytes,
|
|
hscb->cdb_len);
|
|
}
|
|
}
|
|
}
|
|
|
|
/* Only use S/G if there is a transfer */
|
|
if ((ccb_h->flags & CAM_DIR_MASK) != CAM_DIR_NONE) {
|
|
if ((ccb_h->flags & CAM_SCATTER_VALID) == 0) {
|
|
/* We've been given a pointer to a single buffer */
|
|
if ((ccb_h->flags & CAM_DATA_PHYS) == 0) {
|
|
int s;
|
|
int error;
|
|
|
|
s = splsoftvm();
|
|
error = bus_dmamap_load(ahc->buffer_dmat,
|
|
scb->dmamap,
|
|
csio->data_ptr,
|
|
csio->dxfer_len,
|
|
ahc_execute_scb,
|
|
scb, /*flags*/0);
|
|
if (error == EINPROGRESS) {
|
|
/*
|
|
* So as to maintain ordering,
|
|
* freeze the controller queue
|
|
* until our mapping is
|
|
* returned.
|
|
*/
|
|
xpt_freeze_simq(sim,
|
|
/*count*/1);
|
|
scb->io_ctx->ccb_h.status |=
|
|
CAM_RELEASE_SIMQ;
|
|
}
|
|
splx(s);
|
|
} else {
|
|
struct bus_dma_segment seg;
|
|
|
|
/* Pointer to physical buffer */
|
|
if (csio->dxfer_len > AHC_MAXTRANSFER_SIZE)
|
|
panic("ahc_setup_data - Transfer size "
|
|
"larger than can device max");
|
|
|
|
seg.ds_addr =
|
|
(bus_addr_t)(vm_offset_t)csio->data_ptr;
|
|
seg.ds_len = csio->dxfer_len;
|
|
ahc_execute_scb(scb, &seg, 1, 0);
|
|
}
|
|
} else {
|
|
struct bus_dma_segment *segs;
|
|
|
|
if ((ccb_h->flags & CAM_DATA_PHYS) != 0)
|
|
panic("ahc_setup_data - Physical segment "
|
|
"pointers unsupported");
|
|
|
|
if ((ccb_h->flags & CAM_SG_LIST_PHYS) == 0)
|
|
panic("ahc_setup_data - Virtual segment "
|
|
"addresses unsupported");
|
|
|
|
/* Just use the segments provided */
|
|
segs = (struct bus_dma_segment *)csio->data_ptr;
|
|
ahc_execute_scb(scb, segs, csio->sglist_cnt, 0);
|
|
}
|
|
} else {
|
|
ahc_execute_scb(scb, NULL, 0, 0);
|
|
}
|
|
}
|
|
|
|
static void
|
|
ahc_abort_ccb(struct ahc_softc *ahc, struct cam_sim *sim, union ccb *ccb)
|
|
{
|
|
union ccb *abort_ccb;
|
|
|
|
abort_ccb = ccb->cab.abort_ccb;
|
|
switch (abort_ccb->ccb_h.func_code) {
|
|
case XPT_ACCEPT_TARGET_IO:
|
|
case XPT_IMMED_NOTIFY:
|
|
case XPT_CONT_TARGET_IO:
|
|
{
|
|
struct ahc_tmode_tstate *tstate;
|
|
struct ahc_tmode_lstate *lstate;
|
|
struct ccb_hdr_slist *list;
|
|
cam_status status;
|
|
|
|
status = ahc_find_tmode_devs(ahc, sim, abort_ccb, &tstate,
|
|
&lstate, TRUE);
|
|
|
|
if (status != CAM_REQ_CMP) {
|
|
ccb->ccb_h.status = status;
|
|
break;
|
|
}
|
|
|
|
if (abort_ccb->ccb_h.func_code == XPT_ACCEPT_TARGET_IO)
|
|
list = &lstate->accept_tios;
|
|
else if (abort_ccb->ccb_h.func_code == XPT_IMMED_NOTIFY)
|
|
list = &lstate->immed_notifies;
|
|
else
|
|
list = NULL;
|
|
|
|
if (list != NULL) {
|
|
struct ccb_hdr *curelm;
|
|
int found;
|
|
|
|
curelm = SLIST_FIRST(list);
|
|
found = 0;
|
|
if (curelm == &abort_ccb->ccb_h) {
|
|
found = 1;
|
|
SLIST_REMOVE_HEAD(list, sim_links.sle);
|
|
} else {
|
|
while(curelm != NULL) {
|
|
struct ccb_hdr *nextelm;
|
|
|
|
nextelm =
|
|
SLIST_NEXT(curelm, sim_links.sle);
|
|
|
|
if (nextelm == &abort_ccb->ccb_h) {
|
|
found = 1;
|
|
SLIST_NEXT(curelm,
|
|
sim_links.sle) =
|
|
SLIST_NEXT(nextelm,
|
|
sim_links.sle);
|
|
break;
|
|
}
|
|
curelm = nextelm;
|
|
}
|
|
}
|
|
|
|
if (found) {
|
|
abort_ccb->ccb_h.status = CAM_REQ_ABORTED;
|
|
xpt_done(abort_ccb);
|
|
ccb->ccb_h.status = CAM_REQ_CMP;
|
|
} else {
|
|
xpt_print_path(abort_ccb->ccb_h.path);
|
|
printf("Not found\n");
|
|
ccb->ccb_h.status = CAM_PATH_INVALID;
|
|
}
|
|
break;
|
|
}
|
|
/* FALLTHROUGH */
|
|
}
|
|
case XPT_SCSI_IO:
|
|
/* XXX Fully implement the hard ones */
|
|
ccb->ccb_h.status = CAM_UA_ABORT;
|
|
break;
|
|
default:
|
|
ccb->ccb_h.status = CAM_REQ_INVALID;
|
|
break;
|
|
}
|
|
xpt_done(ccb);
|
|
}
|
|
|
|
void
|
|
ahc_send_async(struct ahc_softc *ahc, char channel, u_int target,
|
|
u_int lun, ac_code code, void *opt_arg)
|
|
{
|
|
struct ccb_trans_settings cts;
|
|
struct cam_path *path;
|
|
void *arg;
|
|
int error;
|
|
|
|
arg = NULL;
|
|
error = ahc_create_path(ahc, channel, target, lun, &path);
|
|
|
|
if (error != CAM_REQ_CMP)
|
|
return;
|
|
|
|
switch (code) {
|
|
case AC_TRANSFER_NEG:
|
|
{
|
|
#ifdef AHC_NEW_TRAN_SETTINGS
|
|
struct ccb_trans_settings_scsi *scsi;
|
|
|
|
cts.type = CTS_TYPE_CURRENT_SETTINGS;
|
|
scsi = &cts.proto_specific.scsi;
|
|
#else
|
|
cts.flags = CCB_TRANS_CURRENT_SETTINGS;
|
|
#endif
|
|
cts.ccb_h.path = path;
|
|
cts.ccb_h.target_id = target;
|
|
cts.ccb_h.target_lun = lun;
|
|
ahc_get_tran_settings(ahc, channel == 'A' ? ahc->our_id
|
|
: ahc->our_id_b,
|
|
channel, &cts);
|
|
arg = &cts;
|
|
#ifdef AHC_NEW_TRAN_SETTINGS
|
|
scsi->valid &= ~CTS_SCSI_VALID_TQ;
|
|
scsi->flags &= ~CTS_SCSI_FLAGS_TAG_ENB;
|
|
#else
|
|
cts.valid &= ~CCB_TRANS_TQ_VALID;
|
|
cts.flags &= ~CCB_TRANS_TAG_ENB;
|
|
#endif
|
|
if (opt_arg == NULL)
|
|
break;
|
|
if (*((ahc_queue_alg *)opt_arg) == AHC_QUEUE_TAGGED)
|
|
#ifdef AHC_NEW_TRAN_SETTINGS
|
|
scsi->flags |= ~CTS_SCSI_FLAGS_TAG_ENB;
|
|
scsi->valid |= CTS_SCSI_VALID_TQ;
|
|
#else
|
|
cts.flags |= CCB_TRANS_TAG_ENB;
|
|
cts.valid |= CCB_TRANS_TQ_VALID;
|
|
#endif
|
|
break;
|
|
}
|
|
case AC_SENT_BDR:
|
|
case AC_BUS_RESET:
|
|
break;
|
|
default:
|
|
panic("ahc_send_async: Unexpected async event");
|
|
}
|
|
xpt_async(code, path, arg);
|
|
xpt_free_path(path);
|
|
}
|
|
|
|
void
|
|
ahc_platform_set_tags(struct ahc_softc *ahc,
|
|
struct ahc_devinfo *devinfo, int enable)
|
|
{
|
|
}
|
|
|
|
int
|
|
ahc_platform_alloc(struct ahc_softc *ahc, void *platform_arg)
|
|
{
|
|
ahc->platform_data = malloc(sizeof(struct ahc_platform_data), M_DEVBUF,
|
|
M_NOWAIT | M_ZERO);
|
|
if (ahc->platform_data == NULL)
|
|
return (ENOMEM);
|
|
return (0);
|
|
}
|
|
|
|
void
|
|
ahc_platform_free(struct ahc_softc *ahc)
|
|
{
|
|
struct ahc_platform_data *pdata;
|
|
|
|
pdata = ahc->platform_data;
|
|
if (pdata != NULL) {
|
|
if (pdata->regs != NULL)
|
|
bus_release_resource(ahc->dev_softc,
|
|
pdata->regs_res_type,
|
|
pdata->regs_res_id,
|
|
pdata->regs);
|
|
|
|
if (pdata->irq != NULL)
|
|
bus_release_resource(ahc->dev_softc,
|
|
pdata->irq_res_type,
|
|
0, pdata->irq);
|
|
|
|
if (pdata->sim_b != NULL) {
|
|
xpt_async(AC_LOST_DEVICE, pdata->path_b, NULL);
|
|
xpt_free_path(pdata->path_b);
|
|
xpt_bus_deregister(cam_sim_path(pdata->sim_b));
|
|
cam_sim_free(pdata->sim_b, /*free_devq*/TRUE);
|
|
}
|
|
if (pdata->sim != NULL) {
|
|
xpt_async(AC_LOST_DEVICE, pdata->path, NULL);
|
|
xpt_free_path(pdata->path);
|
|
xpt_bus_deregister(cam_sim_path(pdata->sim));
|
|
cam_sim_free(pdata->sim, /*free_devq*/TRUE);
|
|
}
|
|
if (pdata->eh != NULL)
|
|
EVENTHANDLER_DEREGISTER(shutdown_final, pdata->eh);
|
|
free(ahc->platform_data, M_DEVBUF);
|
|
}
|
|
}
|
|
|
|
int
|
|
ahc_softc_comp(struct ahc_softc *lahc, struct ahc_softc *rahc)
|
|
{
|
|
/* We don't sort softcs under FreeBSD so report equal always */
|
|
return (0);
|
|
}
|
|
|
|
int
|
|
ahc_detach(device_t dev)
|
|
{
|
|
struct ahc_softc *ahc;
|
|
u_long l;
|
|
u_long s;
|
|
|
|
ahc_list_lock(&l);
|
|
device_printf(dev, "detaching device\n");
|
|
ahc = device_get_softc(dev);
|
|
ahc = ahc_find_softc(ahc);
|
|
if (ahc == NULL) {
|
|
device_printf(dev, "aic7xxx already detached\n");
|
|
ahc_list_unlock(&l);
|
|
return (ENOENT);
|
|
}
|
|
TAILQ_REMOVE(&ahc_tailq, ahc, links);
|
|
ahc_list_unlock(&l);
|
|
ahc_lock(ahc, &s);
|
|
ahc_intr_enable(ahc, FALSE);
|
|
bus_teardown_intr(dev, ahc->platform_data->irq, ahc->platform_data->ih);
|
|
ahc_unlock(ahc, &s);
|
|
ahc_free(ahc);
|
|
return (0);
|
|
}
|
|
|
|
#if 0
|
|
static void
|
|
ahc_dump_targcmd(struct target_cmd *cmd)
|
|
{
|
|
uint8_t *byte;
|
|
uint8_t *last_byte;
|
|
int i;
|
|
|
|
byte = &cmd->initiator_channel;
|
|
/* Debugging info for received commands */
|
|
last_byte = &cmd[1].initiator_channel;
|
|
|
|
i = 0;
|
|
while (byte < last_byte) {
|
|
if (i == 0)
|
|
printf("\t");
|
|
printf("%#x", *byte++);
|
|
i++;
|
|
if (i == 8) {
|
|
printf("\n");
|
|
i = 0;
|
|
} else {
|
|
printf(", ");
|
|
}
|
|
}
|
|
}
|
|
#endif
|
|
|
|
static int
|
|
ahc_modevent(module_t mod, int type, void *data)
|
|
{
|
|
/* XXX Deal with busy status on unload. */
|
|
/* XXX Deal with unknown events */
|
|
return 0;
|
|
}
|
|
|
|
static moduledata_t ahc_mod = {
|
|
"ahc",
|
|
ahc_modevent,
|
|
NULL
|
|
};
|
|
|
|
DECLARE_MODULE(ahc, ahc_mod, SI_SUB_DRIVERS, SI_ORDER_MIDDLE);
|
|
MODULE_DEPEND(ahc, cam, 1, 1, 1);
|
|
MODULE_VERSION(ahc, 1);
|