scsi_pt.c revision 287289
1139743Simp/*- 239213Sgibbs * Implementation of SCSI Processor Target Peripheral driver for CAM. 339213Sgibbs * 439213Sgibbs * Copyright (c) 1998 Justin T. Gibbs. 539213Sgibbs * All rights reserved. 639213Sgibbs * 739213Sgibbs * Redistribution and use in source and binary forms, with or without 839213Sgibbs * modification, are permitted provided that the following conditions 939213Sgibbs * are met: 1039213Sgibbs * 1. Redistributions of source code must retain the above copyright 1139213Sgibbs * notice, this list of conditions, and the following disclaimer, 1239213Sgibbs * without modification, immediately at the beginning of the file. 1339213Sgibbs * 2. The name of the author may not be used to endorse or promote products 1439213Sgibbs * derived from this software without specific prior written permission. 1539213Sgibbs * 1639213Sgibbs * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 1739213Sgibbs * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 1839213Sgibbs * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 1939213Sgibbs * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR 2039213Sgibbs * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 2139213Sgibbs * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 2239213Sgibbs * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 2339213Sgibbs * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 2439213Sgibbs * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 2539213Sgibbs * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 2639213Sgibbs * SUCH DAMAGE. 2739213Sgibbs */ 2839213Sgibbs 29116162Sobrien#include <sys/cdefs.h> 30116162Sobrien__FBSDID("$FreeBSD: head/sys/cam/scsi/scsi_pt.c 287289 2015-08-29 11:21:20Z mav $"); 31116162Sobrien 3239213Sgibbs#include <sys/param.h> 3339213Sgibbs#include <sys/queue.h> 3439213Sgibbs#include <sys/systm.h> 3539213Sgibbs#include <sys/kernel.h> 3639213Sgibbs#include <sys/types.h> 3760041Sphk#include <sys/bio.h> 3839213Sgibbs#include <sys/devicestat.h> 3939213Sgibbs#include <sys/malloc.h> 4039213Sgibbs#include <sys/conf.h> 4150073Sken#include <sys/ptio.h> 4239213Sgibbs 4339213Sgibbs#include <cam/cam.h> 4439213Sgibbs#include <cam/cam_ccb.h> 4539213Sgibbs#include <cam/cam_periph.h> 4639213Sgibbs#include <cam/cam_xpt_periph.h> 4739213Sgibbs#include <cam/cam_debug.h> 4839213Sgibbs 4939213Sgibbs#include <cam/scsi/scsi_all.h> 5039213Sgibbs#include <cam/scsi/scsi_message.h> 5139213Sgibbs#include <cam/scsi/scsi_pt.h> 5239213Sgibbs 5350073Sken#include "opt_pt.h" 5450073Sken 5539213Sgibbstypedef enum { 5639213Sgibbs PT_STATE_PROBE, 5739213Sgibbs PT_STATE_NORMAL 5839213Sgibbs} pt_state; 5939213Sgibbs 6039213Sgibbstypedef enum { 6139213Sgibbs PT_FLAG_NONE = 0x00, 6239213Sgibbs PT_FLAG_OPEN = 0x01, 6339213Sgibbs PT_FLAG_DEVICE_INVALID = 0x02, 6439213Sgibbs PT_FLAG_RETRY_UA = 0x04 6539213Sgibbs} pt_flags; 6639213Sgibbs 6739213Sgibbstypedef enum { 6839213Sgibbs PT_CCB_BUFFER_IO = 0x01, 6939213Sgibbs PT_CCB_RETRY_UA = 0x04, 7039213Sgibbs PT_CCB_BUFFER_IO_UA = PT_CCB_BUFFER_IO|PT_CCB_RETRY_UA 7139213Sgibbs} pt_ccb_state; 7239213Sgibbs 7339213Sgibbs/* Offsets into our private area for storing information */ 7439213Sgibbs#define ccb_state ppriv_field0 7539213Sgibbs#define ccb_bp ppriv_ptr1 7639213Sgibbs 7739213Sgibbsstruct pt_softc { 7859249Sphk struct bio_queue_head bio_queue; 79112006Sphk struct devstat *device_stats; 8060938Sjake LIST_HEAD(, ccb_hdr) pending_ccbs; 8139213Sgibbs pt_state state; 8239213Sgibbs pt_flags flags; 8339213Sgibbs union ccb saved_ccb; 8450073Sken int io_timeout; 85130585Sphk struct cdev *dev; 8639213Sgibbs}; 8739213Sgibbs 8839213Sgibbsstatic d_open_t ptopen; 8939213Sgibbsstatic d_close_t ptclose; 9039213Sgibbsstatic d_strategy_t ptstrategy; 9139213Sgibbsstatic periph_init_t ptinit; 9239213Sgibbsstatic void ptasync(void *callback_arg, u_int32_t code, 9339213Sgibbs struct cam_path *path, void *arg); 9439213Sgibbsstatic periph_ctor_t ptctor; 9540603Skenstatic periph_oninv_t ptoninvalidate; 9639213Sgibbsstatic periph_dtor_t ptdtor; 9739213Sgibbsstatic periph_start_t ptstart; 9839213Sgibbsstatic void ptdone(struct cam_periph *periph, 9939213Sgibbs union ccb *done_ccb); 10050073Skenstatic d_ioctl_t ptioctl; 10139213Sgibbsstatic int pterror(union ccb *ccb, u_int32_t cam_flags, 10239213Sgibbs u_int32_t sense_flags); 10339213Sgibbs 10439213Sgibbsvoid scsi_send_receive(struct ccb_scsiio *csio, u_int32_t retries, 10539213Sgibbs void (*cbfcnp)(struct cam_periph *, union ccb *), 10639213Sgibbs u_int tag_action, int readop, u_int byte2, 10739213Sgibbs u_int32_t xfer_len, u_int8_t *data_ptr, 10839213Sgibbs u_int8_t sense_len, u_int32_t timeout); 10939213Sgibbs 11039213Sgibbsstatic struct periph_driver ptdriver = 11139213Sgibbs{ 11239213Sgibbs ptinit, "pt", 11339213Sgibbs TAILQ_HEAD_INITIALIZER(ptdriver.units), /* generation */ 0 11439213Sgibbs}; 11539213Sgibbs 11672119SpeterPERIPHDRIVER_DECLARE(pt, ptdriver); 11739213Sgibbs 11839213Sgibbs 11947625Sphkstatic struct cdevsw pt_cdevsw = { 120126080Sphk .d_version = D_VERSION, 121168752Sscottl .d_flags = 0, 122111815Sphk .d_open = ptopen, 123111815Sphk .d_close = ptclose, 124111815Sphk .d_read = physread, 125111815Sphk .d_write = physwrite, 126111815Sphk .d_ioctl = ptioctl, 127111815Sphk .d_strategy = ptstrategy, 128111815Sphk .d_name = "pt", 12939213Sgibbs}; 13039213Sgibbs 13150073Sken#ifndef SCSI_PT_DEFAULT_TIMEOUT 13250073Sken#define SCSI_PT_DEFAULT_TIMEOUT 60 13350073Sken#endif 13450073Sken 13539213Sgibbsstatic int 136130585Sphkptopen(struct cdev *dev, int flags, int fmt, struct thread *td) 13739213Sgibbs{ 13839213Sgibbs struct cam_periph *periph; 13939213Sgibbs struct pt_softc *softc; 140168752Sscottl int error = 0; 14139213Sgibbs 142101940Snjl periph = (struct cam_periph *)dev->si_drv1; 143168752Sscottl if (cam_periph_acquire(periph) != CAM_REQ_CMP) 14439213Sgibbs return (ENXIO); 14539213Sgibbs 14639213Sgibbs softc = (struct pt_softc *)periph->softc; 14739213Sgibbs 148168752Sscottl cam_periph_lock(periph); 14940603Sken if (softc->flags & PT_FLAG_DEVICE_INVALID) { 150236138Sken cam_periph_release_locked(periph); 151168752Sscottl cam_periph_unlock(periph); 15240603Sken return(ENXIO); 15340603Sken } 15440603Sken 155168752Sscottl if ((softc->flags & PT_FLAG_OPEN) == 0) 156168752Sscottl softc->flags |= PT_FLAG_OPEN; 157168752Sscottl else { 158168752Sscottl error = EBUSY; 159168752Sscottl cam_periph_release(periph); 16041297Sken } 16139213Sgibbs 162168752Sscottl CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, 163168752Sscottl ("ptopen: dev=%s\n", devtoname(dev))); 16441297Sken 16539213Sgibbs cam_periph_unlock(periph); 16639213Sgibbs return (error); 16739213Sgibbs} 16839213Sgibbs 16939213Sgibbsstatic int 170130585Sphkptclose(struct cdev *dev, int flag, int fmt, struct thread *td) 17139213Sgibbs{ 17239213Sgibbs struct cam_periph *periph; 17339213Sgibbs struct pt_softc *softc; 17439213Sgibbs 175101940Snjl periph = (struct cam_periph *)dev->si_drv1; 17639213Sgibbs if (periph == NULL) 17739213Sgibbs return (ENXIO); 17839213Sgibbs 17939213Sgibbs softc = (struct pt_softc *)periph->softc; 18039213Sgibbs 181168752Sscottl cam_periph_lock(periph); 18239213Sgibbs 18339213Sgibbs softc->flags &= ~PT_FLAG_OPEN; 184236138Sken cam_periph_release_locked(periph); 18539213Sgibbs cam_periph_unlock(periph); 18639213Sgibbs return (0); 18739213Sgibbs} 18839213Sgibbs 18939213Sgibbs/* 19039213Sgibbs * Actually translate the requested transfer into one the physical driver 19139213Sgibbs * can understand. The transfer is described by a buf and will include 19239213Sgibbs * only one physical transfer. 19339213Sgibbs */ 19439213Sgibbsstatic void 19559249Sphkptstrategy(struct bio *bp) 19639213Sgibbs{ 19739213Sgibbs struct cam_periph *periph; 19839213Sgibbs struct pt_softc *softc; 19939213Sgibbs 200101940Snjl periph = (struct cam_periph *)bp->bio_dev->si_drv1; 20176362Sphk bp->bio_resid = bp->bio_bcount; 20239213Sgibbs if (periph == NULL) { 20376362Sphk biofinish(bp, NULL, ENXIO); 20476362Sphk return; 20539213Sgibbs } 206168752Sscottl cam_periph_lock(periph); 20739213Sgibbs softc = (struct pt_softc *)periph->softc; 20839213Sgibbs 20939213Sgibbs /* 21039213Sgibbs * If the device has been made invalid, error out 21139213Sgibbs */ 21239213Sgibbs if ((softc->flags & PT_FLAG_DEVICE_INVALID)) { 213168752Sscottl cam_periph_unlock(periph); 21476362Sphk biofinish(bp, NULL, ENXIO); 21576362Sphk return; 21639213Sgibbs } 21739213Sgibbs 21839213Sgibbs /* 21939213Sgibbs * Place it in the queue of disk activities for this disk 22039213Sgibbs */ 22159249Sphk bioq_insert_tail(&softc->bio_queue, bp); 22239213Sgibbs 22339213Sgibbs /* 22439213Sgibbs * Schedule ourselves for performing the work. 22539213Sgibbs */ 226198382Smav xpt_schedule(periph, CAM_PRIORITY_NORMAL); 227168752Sscottl cam_periph_unlock(periph); 22839213Sgibbs 22939213Sgibbs return; 23039213Sgibbs} 23139213Sgibbs 23239213Sgibbsstatic void 23339213Sgibbsptinit(void) 23439213Sgibbs{ 23539213Sgibbs cam_status status; 23639213Sgibbs 23739213Sgibbs /* 23839213Sgibbs * Install a global async callback. This callback will 23939213Sgibbs * receive async callbacks like "new device found". 24039213Sgibbs */ 241169605Sscottl status = xpt_register_async(AC_FOUND_DEVICE, ptasync, NULL, NULL); 24239213Sgibbs 24339213Sgibbs if (status != CAM_REQ_CMP) { 24439213Sgibbs printf("pt: Failed to attach master async callback " 24539213Sgibbs "due to status 0x%x!\n", status); 24639213Sgibbs } 24739213Sgibbs} 24839213Sgibbs 24939213Sgibbsstatic cam_status 25039213Sgibbsptctor(struct cam_periph *periph, void *arg) 25139213Sgibbs{ 25239213Sgibbs struct pt_softc *softc; 25339213Sgibbs struct ccb_getdev *cgd; 254220644Smav struct ccb_pathinq cpi; 25539213Sgibbs 25639213Sgibbs cgd = (struct ccb_getdev *)arg; 25739213Sgibbs if (cgd == NULL) { 25839213Sgibbs printf("ptregister: no getdev CCB, can't register device\n"); 25939213Sgibbs return(CAM_REQ_CMP_ERR); 26039213Sgibbs } 26139213Sgibbs 26239213Sgibbs softc = (struct pt_softc *)malloc(sizeof(*softc),M_DEVBUF,M_NOWAIT); 26339213Sgibbs 26439213Sgibbs if (softc == NULL) { 26539213Sgibbs printf("daregister: Unable to probe new device. " 26639213Sgibbs "Unable to allocate softc\n"); 26739213Sgibbs return(CAM_REQ_CMP_ERR); 26839213Sgibbs } 26939213Sgibbs 27039213Sgibbs bzero(softc, sizeof(*softc)); 27139213Sgibbs LIST_INIT(&softc->pending_ccbs); 27239213Sgibbs softc->state = PT_STATE_NORMAL; 27359249Sphk bioq_init(&softc->bio_queue); 27439213Sgibbs 27550073Sken softc->io_timeout = SCSI_PT_DEFAULT_TIMEOUT * 1000; 27650073Sken 27739213Sgibbs periph->softc = softc; 278220644Smav 279220644Smav bzero(&cpi, sizeof(cpi)); 280220644Smav xpt_setup_ccb(&cpi.ccb_h, periph->path, CAM_PRIORITY_NORMAL); 281220644Smav cpi.ccb_h.func_code = XPT_PATH_INQ; 282220644Smav xpt_action((union ccb *)&cpi); 283220644Smav 284169605Sscottl cam_periph_unlock(periph); 285112006Sphk softc->device_stats = devstat_new_entry("pt", 28639213Sgibbs periph->unit_number, 0, 28739213Sgibbs DEVSTAT_NO_BLOCKSIZE, 288220644Smav SID_TYPE(&cgd->inq_data) | 289220644Smav XPORT_DEVSTAT_TYPE(cpi.transport), 29043819Sken DEVSTAT_PRIORITY_OTHER); 29139213Sgibbs 29253257Sken softc->dev = make_dev(&pt_cdevsw, periph->unit_number, UID_ROOT, 29353257Sken GID_OPERATOR, 0600, "%s%d", periph->periph_name, 29453257Sken periph->unit_number); 295168872Sscottl cam_periph_lock(periph); 296101940Snjl softc->dev->si_drv1 = periph; 297101940Snjl 29839213Sgibbs /* 29939213Sgibbs * Add async callbacks for bus reset and 30039213Sgibbs * bus device reset calls. I don't bother 30139213Sgibbs * checking if this fails as, in most cases, 30239213Sgibbs * the system will function just fine without 30339213Sgibbs * them and the only alternative would be to 30439213Sgibbs * not attach the device on failure. 30539213Sgibbs */ 306169605Sscottl xpt_register_async(AC_SENT_BDR | AC_BUS_RESET | AC_LOST_DEVICE, 307169605Sscottl ptasync, periph, periph->path); 30839213Sgibbs 30939213Sgibbs /* Tell the user we've attached to the device */ 31039213Sgibbs xpt_announce_periph(periph, NULL); 31139213Sgibbs 31239213Sgibbs return(CAM_REQ_CMP); 31339213Sgibbs} 31439213Sgibbs 31539213Sgibbsstatic void 31640603Skenptoninvalidate(struct cam_periph *periph) 31740603Sken{ 31840603Sken struct pt_softc *softc; 31940603Sken 32040603Sken softc = (struct pt_softc *)periph->softc; 32140603Sken 32240603Sken /* 32340603Sken * De-register any async callbacks. 32440603Sken */ 325169605Sscottl xpt_register_async(0, ptasync, periph, periph->path); 32640603Sken 32740603Sken softc->flags |= PT_FLAG_DEVICE_INVALID; 32840603Sken 32940603Sken /* 33040603Sken * Return all queued I/O with ENXIO. 33140603Sken * XXX Handle any transactions queued to the card 33240603Sken * with XPT_ABORT_CCB. 33340603Sken */ 334112946Sphk bioq_flush(&softc->bio_queue, NULL, ENXIO); 33540603Sken} 33640603Sken 33740603Skenstatic void 33839213Sgibbsptdtor(struct cam_periph *periph) 33939213Sgibbs{ 34040603Sken struct pt_softc *softc; 34140603Sken 34240603Sken softc = (struct pt_softc *)periph->softc; 34340603Sken 344112006Sphk devstat_remove_entry(softc->device_stats); 345187028Strasz cam_periph_unlock(periph); 34653257Sken destroy_dev(softc->dev); 347187028Strasz cam_periph_lock(periph); 34840603Sken free(softc, M_DEVBUF); 34939213Sgibbs} 35039213Sgibbs 35139213Sgibbsstatic void 35239213Sgibbsptasync(void *callback_arg, u_int32_t code, struct cam_path *path, void *arg) 35339213Sgibbs{ 35439213Sgibbs struct cam_periph *periph; 35539213Sgibbs 35639213Sgibbs periph = (struct cam_periph *)callback_arg; 35739213Sgibbs switch (code) { 35839213Sgibbs case AC_FOUND_DEVICE: 35939213Sgibbs { 36039213Sgibbs struct ccb_getdev *cgd; 36139213Sgibbs cam_status status; 36239213Sgibbs 36339213Sgibbs cgd = (struct ccb_getdev *)arg; 36479177Smjacob if (cgd == NULL) 36579177Smjacob break; 36639213Sgibbs 367195534Sscottl if (cgd->protocol != PROTO_SCSI) 368195534Sscottl break; 369287289Smav if (SID_QUAL(&cgd->inq_data) != SID_QUAL_LU_CONNECTED) 370287289Smav break; 37156148Smjacob if (SID_TYPE(&cgd->inq_data) != T_PROCESSOR) 37239213Sgibbs break; 37339213Sgibbs 37439213Sgibbs /* 37539213Sgibbs * Allocate a peripheral instance for 37639213Sgibbs * this device and start the probe 37739213Sgibbs * process. 37839213Sgibbs */ 37940603Sken status = cam_periph_alloc(ptctor, ptoninvalidate, ptdtor, 38040603Sken ptstart, "pt", CAM_PERIPH_BIO, 381256843Smav path, ptasync, 38240603Sken AC_FOUND_DEVICE, cgd); 38339213Sgibbs 38439213Sgibbs if (status != CAM_REQ_CMP 38539213Sgibbs && status != CAM_REQ_INPROG) 38639213Sgibbs printf("ptasync: Unable to attach to new device " 38739213Sgibbs "due to status 0x%x\n", status); 38839213Sgibbs break; 38939213Sgibbs } 39039213Sgibbs case AC_SENT_BDR: 39139213Sgibbs case AC_BUS_RESET: 39239213Sgibbs { 39339213Sgibbs struct pt_softc *softc; 39439213Sgibbs struct ccb_hdr *ccbh; 39539213Sgibbs 39639213Sgibbs softc = (struct pt_softc *)periph->softc; 39739213Sgibbs /* 39839213Sgibbs * Don't fail on the expected unit attention 39939213Sgibbs * that will occur. 40039213Sgibbs */ 40139213Sgibbs softc->flags |= PT_FLAG_RETRY_UA; 40271999Sphk LIST_FOREACH(ccbh, &softc->pending_ccbs, periph_links.le) 40339213Sgibbs ccbh->ccb_state |= PT_CCB_RETRY_UA; 40439213Sgibbs } 405115562Sphk /* FALLTHROUGH */ 40639213Sgibbs default: 40747413Sgibbs cam_periph_async(periph, code, path, arg); 40839213Sgibbs break; 40939213Sgibbs } 41039213Sgibbs} 41139213Sgibbs 41239213Sgibbsstatic void 41339213Sgibbsptstart(struct cam_periph *periph, union ccb *start_ccb) 41439213Sgibbs{ 41539213Sgibbs struct pt_softc *softc; 41659249Sphk struct bio *bp; 41739213Sgibbs 41839213Sgibbs softc = (struct pt_softc *)periph->softc; 41939213Sgibbs 420236602Smav CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, ("ptstart\n")); 421236602Smav 42239213Sgibbs /* 42339213Sgibbs * See if there is a buf with work for us to do.. 42439213Sgibbs */ 42559249Sphk bp = bioq_first(&softc->bio_queue); 426256843Smav if (bp == NULL) { 42739213Sgibbs xpt_release_ccb(start_ccb); 42839213Sgibbs } else { 42959249Sphk bioq_remove(&softc->bio_queue, bp); 43039213Sgibbs 431112260Sphk devstat_start_transaction_bio(softc->device_stats, bp); 43239213Sgibbs 43339213Sgibbs scsi_send_receive(&start_ccb->csio, 43439213Sgibbs /*retries*/4, 43539213Sgibbs ptdone, 43639213Sgibbs MSG_SIMPLE_Q_TAG, 43759249Sphk bp->bio_cmd == BIO_READ, 43839213Sgibbs /*byte2*/0, 43959249Sphk bp->bio_bcount, 44059249Sphk bp->bio_data, 44139213Sgibbs /*sense_len*/SSD_FULL_SIZE, 44250073Sken /*timeout*/softc->io_timeout); 44339213Sgibbs 44476192Sken start_ccb->ccb_h.ccb_state = PT_CCB_BUFFER_IO_UA; 44539213Sgibbs 44639213Sgibbs /* 447250460Seadler * Block out any asynchronous callbacks 44839213Sgibbs * while we touch the pending ccb list. 44939213Sgibbs */ 45039213Sgibbs LIST_INSERT_HEAD(&softc->pending_ccbs, &start_ccb->ccb_h, 45139213Sgibbs periph_links.le); 45239213Sgibbs 45339213Sgibbs start_ccb->ccb_h.ccb_bp = bp; 45459249Sphk bp = bioq_first(&softc->bio_queue); 45539213Sgibbs 45639213Sgibbs xpt_action(start_ccb); 45739213Sgibbs 45839213Sgibbs if (bp != NULL) { 45939213Sgibbs /* Have more work to do, so ensure we stay scheduled */ 460198382Smav xpt_schedule(periph, CAM_PRIORITY_NORMAL); 46139213Sgibbs } 46239213Sgibbs } 46339213Sgibbs} 46439213Sgibbs 46539213Sgibbsstatic void 46639213Sgibbsptdone(struct cam_periph *periph, union ccb *done_ccb) 46739213Sgibbs{ 46839213Sgibbs struct pt_softc *softc; 46939213Sgibbs struct ccb_scsiio *csio; 47039213Sgibbs 47139213Sgibbs softc = (struct pt_softc *)periph->softc; 472236602Smav 473236602Smav CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, ("ptdone\n")); 474236602Smav 47539213Sgibbs csio = &done_ccb->csio; 47639213Sgibbs switch (csio->ccb_h.ccb_state) { 47739213Sgibbs case PT_CCB_BUFFER_IO: 47839213Sgibbs case PT_CCB_BUFFER_IO_UA: 47939213Sgibbs { 48059249Sphk struct bio *bp; 48139213Sgibbs 48259249Sphk bp = (struct bio *)done_ccb->ccb_h.ccb_bp; 48339213Sgibbs if ((done_ccb->ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) { 48439213Sgibbs int error; 48539213Sgibbs int sf; 48639213Sgibbs 48739213Sgibbs if ((csio->ccb_h.ccb_state & PT_CCB_RETRY_UA) != 0) 48839213Sgibbs sf = SF_RETRY_UA; 48939213Sgibbs else 49039213Sgibbs sf = 0; 49139213Sgibbs 49274840Sken error = pterror(done_ccb, CAM_RETRY_SELTO, sf); 49374840Sken if (error == ERESTART) { 49439213Sgibbs /* 49539213Sgibbs * A retry was scheuled, so 49639213Sgibbs * just return. 49739213Sgibbs */ 49839213Sgibbs return; 49939213Sgibbs } 50039213Sgibbs if (error != 0) { 50139213Sgibbs if (error == ENXIO) { 50239213Sgibbs /* 50339213Sgibbs * Catastrophic error. Mark our device 50439213Sgibbs * as invalid. 50539213Sgibbs */ 506164906Smjacob xpt_print(periph->path, 507164906Smjacob "Invalidating device\n"); 50839213Sgibbs softc->flags |= PT_FLAG_DEVICE_INVALID; 50939213Sgibbs } 51039213Sgibbs 51139213Sgibbs /* 51239213Sgibbs * return all queued I/O with EIO, so that 51339213Sgibbs * the client can retry these I/Os in the 51439213Sgibbs * proper order should it attempt to recover. 51539213Sgibbs */ 516112946Sphk bioq_flush(&softc->bio_queue, NULL, EIO); 51759249Sphk bp->bio_error = error; 51859249Sphk bp->bio_resid = bp->bio_bcount; 51959249Sphk bp->bio_flags |= BIO_ERROR; 52039213Sgibbs } else { 52159249Sphk bp->bio_resid = csio->resid; 52259249Sphk bp->bio_error = 0; 52359249Sphk if (bp->bio_resid != 0) { 52439213Sgibbs /* Short transfer ??? */ 52559249Sphk bp->bio_flags |= BIO_ERROR; 52639213Sgibbs } 52739213Sgibbs } 52839213Sgibbs if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) 52939213Sgibbs cam_release_devq(done_ccb->ccb_h.path, 53039213Sgibbs /*relsim_flags*/0, 53139213Sgibbs /*reduction*/0, 53239213Sgibbs /*timeout*/0, 53339213Sgibbs /*getcount_only*/0); 53439213Sgibbs } else { 53559249Sphk bp->bio_resid = csio->resid; 53659249Sphk if (bp->bio_resid != 0) 53759249Sphk bp->bio_flags |= BIO_ERROR; 53839213Sgibbs } 53939213Sgibbs 54039213Sgibbs /* 541250460Seadler * Block out any asynchronous callbacks 54239213Sgibbs * while we touch the pending ccb list. 54339213Sgibbs */ 54439213Sgibbs LIST_REMOVE(&done_ccb->ccb_h, periph_links.le); 54539213Sgibbs 546112006Sphk biofinish(bp, softc->device_stats, 0); 54739213Sgibbs break; 54839213Sgibbs } 54939213Sgibbs } 55039213Sgibbs xpt_release_ccb(done_ccb); 55139213Sgibbs} 55239213Sgibbs 55339213Sgibbsstatic int 55439213Sgibbspterror(union ccb *ccb, u_int32_t cam_flags, u_int32_t sense_flags) 55539213Sgibbs{ 55639213Sgibbs struct pt_softc *softc; 55739213Sgibbs struct cam_periph *periph; 55839213Sgibbs 55939213Sgibbs periph = xpt_path_periph(ccb->ccb_h.path); 56039213Sgibbs softc = (struct pt_softc *)periph->softc; 56139213Sgibbs 56239213Sgibbs return(cam_periph_error(ccb, cam_flags, sense_flags, 56339213Sgibbs &softc->saved_ccb)); 56439213Sgibbs} 56539213Sgibbs 56650073Skenstatic int 567130585Sphkptioctl(struct cdev *dev, u_long cmd, caddr_t addr, int flag, struct thread *td) 56850073Sken{ 56950073Sken struct cam_periph *periph; 57050073Sken struct pt_softc *softc; 571168752Sscottl int error = 0; 57250073Sken 573101940Snjl periph = (struct cam_periph *)dev->si_drv1; 57450073Sken if (periph == NULL) 57550073Sken return(ENXIO); 57650073Sken 57750073Sken softc = (struct pt_softc *)periph->softc; 57850073Sken 579168752Sscottl cam_periph_lock(periph); 58050073Sken 58150073Sken switch(cmd) { 58250073Sken case PTIOCGETTIMEOUT: 58350073Sken if (softc->io_timeout >= 1000) 58450073Sken *(int *)addr = softc->io_timeout / 1000; 58550073Sken else 58650073Sken *(int *)addr = 0; 58750073Sken break; 58850073Sken case PTIOCSETTIMEOUT: 58950073Sken if (*(int *)addr < 1) { 59050073Sken error = EINVAL; 59150073Sken break; 59250073Sken } 59350073Sken 59450073Sken softc->io_timeout = *(int *)addr * 1000; 59550073Sken 59650073Sken break; 59750073Sken default: 59850073Sken error = cam_periph_ioctl(periph, cmd, addr, pterror); 59950073Sken break; 60050073Sken } 60150073Sken 60250073Sken cam_periph_unlock(periph); 60350073Sken 60450073Sken return(error); 60550073Sken} 60650073Sken 60739213Sgibbsvoid 60839213Sgibbsscsi_send_receive(struct ccb_scsiio *csio, u_int32_t retries, 60939213Sgibbs void (*cbfcnp)(struct cam_periph *, union ccb *), 61039213Sgibbs u_int tag_action, int readop, u_int byte2, 61139213Sgibbs u_int32_t xfer_len, u_int8_t *data_ptr, u_int8_t sense_len, 61239213Sgibbs u_int32_t timeout) 61339213Sgibbs{ 61439213Sgibbs struct scsi_send_receive *scsi_cmd; 61539213Sgibbs 61639213Sgibbs scsi_cmd = (struct scsi_send_receive *)&csio->cdb_io.cdb_bytes; 61739213Sgibbs scsi_cmd->opcode = readop ? RECEIVE : SEND; 61839213Sgibbs scsi_cmd->byte2 = byte2; 61939213Sgibbs scsi_ulto3b(xfer_len, scsi_cmd->xfer_len); 62039213Sgibbs scsi_cmd->control = 0; 62139213Sgibbs 62239213Sgibbs cam_fill_csio(csio, 62339213Sgibbs retries, 62439213Sgibbs cbfcnp, 62539213Sgibbs /*flags*/readop ? CAM_DIR_IN : CAM_DIR_OUT, 62639213Sgibbs tag_action, 62739213Sgibbs data_ptr, 62839213Sgibbs xfer_len, 62939213Sgibbs sense_len, 63039213Sgibbs sizeof(*scsi_cmd), 63139213Sgibbs timeout); 63239213Sgibbs} 633