svn commit: r208926 - in head/tools/tools/vhba: . faulty lots
medium rptluns simple
Matt Jacob
mjacob at FreeBSD.org
Tue Jun 8 22:26:48 UTC 2010
Author: mjacob
Date: Tue Jun 8 22:26:47 2010
New Revision: 208926
URL: http://svn.freebsd.org/changeset/base/208926
Log:
Add the VHBA package. It is here in tools because it's really a testbed.
Sponsored by: Panasas
MFC after: 1 month
Added:
head/tools/tools/vhba/
head/tools/tools/vhba/Makefile (contents, props changed)
head/tools/tools/vhba/README (contents, props changed)
head/tools/tools/vhba/faulty/
head/tools/tools/vhba/faulty/Makefile (contents, props changed)
head/tools/tools/vhba/faulty/vhba_faulty.c (contents, props changed)
head/tools/tools/vhba/lots/
head/tools/tools/vhba/lots/Makefile (contents, props changed)
head/tools/tools/vhba/lots/vhba_lots.c (contents, props changed)
head/tools/tools/vhba/medium/
head/tools/tools/vhba/medium/Makefile (contents, props changed)
head/tools/tools/vhba/medium/vhba_medium.c (contents, props changed)
head/tools/tools/vhba/opt_cam.h (contents, props changed)
head/tools/tools/vhba/rptluns/
head/tools/tools/vhba/rptluns/Makefile (contents, props changed)
head/tools/tools/vhba/rptluns/vhba_rptluns.c (contents, props changed)
head/tools/tools/vhba/simple/
head/tools/tools/vhba/simple/Makefile (contents, props changed)
head/tools/tools/vhba/simple/vhba_simple.c (contents, props changed)
head/tools/tools/vhba/vhba.c (contents, props changed)
head/tools/tools/vhba/vhba.h (contents, props changed)
Added: head/tools/tools/vhba/Makefile
==============================================================================
--- /dev/null 00:00:00 1970 (empty, because file is newly added)
+++ head/tools/tools/vhba/Makefile Tue Jun 8 22:26:47 2010 (r208926)
@@ -0,0 +1,29 @@
+# $FreeBSD$
+#
+# Copyright (c) 2010 by Panasas Inc
+# All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions
+# are met:
+# 1. Redistributions of source code must retain the above copyright
+# notice immediately at the beginning of the file, without modification,
+# this list of conditions, and the following disclaimer.
+# 2. The name of the author may not be used to endorse or promote products
+# derived from this software without specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+# ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR
+# ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+
+SUBDIR= simple medium lots faulty rptluns
+
+.include <bsd.subdir.mk>
Added: head/tools/tools/vhba/README
==============================================================================
--- /dev/null 00:00:00 1970 (empty, because file is newly added)
+++ head/tools/tools/vhba/README Tue Jun 8 22:26:47 2010 (r208926)
@@ -0,0 +1,16 @@
+$FreeBSD$
+Tue Jun 8 15:02:02 PDT 2010
+
+This packages is a testbed for a number of purposes and consists
+of two pieces.
+
+The first piece is a simple SIM driver for FreeBSD. It provides
+*just enough* framework to be useful, plus some nominally common
+code responses for code sharing purposes.
+
+The second piece(s) are underlying implementations which make various
+virtual devices implemented under the VHBA itself. The current ones
+are pretty much used to stress and test the FreeBSD CAM framework
+itself- this is why this is in the tool directory.
+
+Clearly other connections and possibilities exist as well.
Added: head/tools/tools/vhba/faulty/Makefile
==============================================================================
--- /dev/null 00:00:00 1970 (empty, because file is newly added)
+++ head/tools/tools/vhba/faulty/Makefile Tue Jun 8 22:26:47 2010 (r208926)
@@ -0,0 +1,7 @@
+# $FreeBSD$
+KMOD= vfaulty
+SRCS= vhba_faulty.c vhba.c
+CFLAGS += -I${.CURDIR}/.. -DVHBA_MOD=\"vfaulty\"
+VPATH= ${.CURDIR}/..
+
+.include <bsd.kmod.mk>
Added: head/tools/tools/vhba/faulty/vhba_faulty.c
==============================================================================
--- /dev/null 00:00:00 1970 (empty, because file is newly added)
+++ head/tools/tools/vhba/faulty/vhba_faulty.c Tue Jun 8 22:26:47 2010 (r208926)
@@ -0,0 +1,349 @@
+/*-
+ * Copyright (c) 2010 by Panasas, Inc.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice immediately at the beginning of the file, without modification,
+ * this list of conditions, and the following disclaimer.
+ * 2. The name of the author may not be used to endorse or promote products
+ * derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR
+ * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+/* $FreeBSD$ */
+/*
+ * "Faulty" Device. Victimize random commands with a Selection Timeout.
+ */
+#include "vhba.h"
+
+#define MAX_TGT VHBA_MAXTGT
+#define MAX_LUN 4
+
+#define DISK_SIZE 32
+#define DISK_SHIFT 9
+#define DISK_NBLKS ((DISK_SIZE << 20) >> DISK_SHIFT)
+#define PSEUDO_SPT 64
+#define PSEUDO_HDS 64
+#define PSEUDO_SPC (PSEUDO_SPT * PSEUDO_HDS)
+
+typedef struct {
+ vhba_softc_t * vhba;
+ uint8_t * disk;
+ size_t disk_size;
+ uint32_t ctr;
+ uint32_t dead;
+ struct task qt;
+} faulty_t;
+
+static void vhba_task(void *, int);
+static void faulty_act(faulty_t *, struct ccb_scsiio *);
+
+void
+vhba_init(vhba_softc_t *vhba)
+{
+ static faulty_t vhbastatic;
+ vhbastatic.vhba = vhba;
+ vhbastatic.disk_size = DISK_SIZE << 20;
+ vhbastatic.disk = malloc(vhbastatic.disk_size, M_DEVBUF, M_WAITOK|M_ZERO);
+ vhba->private = &vhbastatic;
+ vhbastatic.ctr = (arc4random() & 0xffff) + 1;
+ TASK_INIT(&vhbastatic.qt, 0, vhba_task, &vhbastatic);
+}
+
+
+void
+vhba_fini(vhba_softc_t *vhba)
+{
+ faulty_t *vhbas = vhba->private;
+ vhba->private = NULL;
+ free(vhbas->disk, M_DEVBUF);
+}
+
+void
+vhba_kick(vhba_softc_t *vhba)
+{
+ faulty_t *vhbas = vhba->private;
+ taskqueue_enqueue(taskqueue_swi, &vhbas->qt);
+}
+
+static void
+vhba_task(void *arg, int pending)
+{
+ faulty_t *vhbas = arg;
+ struct ccb_hdr *ccbh;
+
+ mtx_lock(&vhbas->vhba->lock);
+ while ((ccbh = TAILQ_FIRST(&vhbas->vhba->actv)) != NULL) {
+ TAILQ_REMOVE(&vhbas->vhba->actv, ccbh, sim_links.tqe);
+ faulty_act(vhbas, (struct ccb_scsiio *)ccbh);
+ if (--vhbas->ctr == 0) {
+ vhbas->dead = 1;
+ vhbas->ctr = (arc4random() & 0xff) + 1;
+ }
+ }
+ while ((ccbh = TAILQ_FIRST(&vhbas->vhba->done)) != NULL) {
+ TAILQ_REMOVE(&vhbas->vhba->done, ccbh, sim_links.tqe);
+ xpt_done((union ccb *)ccbh);
+ }
+ mtx_unlock(&vhbas->vhba->lock);
+}
+
+static void
+faulty_act(faulty_t *vhbas, struct ccb_scsiio *csio)
+{
+ char junk[128];
+ cam_status camstatus;
+ uint8_t *cdb, *ptr, status;
+ uint32_t data_len;
+ uint64_t off;
+
+ data_len = 0;
+ status = SCSI_STATUS_OK;
+
+ memset(&csio->sense_data, 0, sizeof (csio->sense_data));
+ cdb = csio->cdb_io.cdb_bytes;
+
+ if (csio->ccb_h.target_id >= MAX_TGT) {
+ vhba_set_status(&csio->ccb_h, CAM_SEL_TIMEOUT);
+ TAILQ_INSERT_TAIL(&vhbas->vhba->done, &csio->ccb_h, sim_links.tqe);
+ return;
+ }
+ if (vhbas->dead) {
+ vhbas->dead = 0;
+ vhba_set_status(&csio->ccb_h, CAM_SEL_TIMEOUT);
+ TAILQ_INSERT_TAIL(&vhbas->vhba->done, &csio->ccb_h, sim_links.tqe);
+ return;
+ }
+ if (csio->ccb_h.target_lun >= MAX_LUN && cdb[0] != INQUIRY && cdb[0] != REPORT_LUNS && cdb[0] != REQUEST_SENSE) {
+ vhba_fill_sense(csio, SSD_KEY_ILLEGAL_REQUEST, 0x25, 0x0);
+ TAILQ_INSERT_TAIL(&vhbas->vhba->done, &csio->ccb_h, sim_links.tqe);
+ return;
+ }
+
+ switch (cdb[0]) {
+ case MODE_SENSE:
+ case MODE_SENSE_10:
+ {
+ unsigned int nbyte;
+ uint8_t page = cdb[2] & SMS_PAGE_CODE;
+ uint8_t pgctl = cdb[2] & SMS_PAGE_CTRL_MASK;
+
+ switch (page) {
+ case SMS_FORMAT_DEVICE_PAGE:
+ case SMS_GEOMETRY_PAGE:
+ case SMS_CACHE_PAGE:
+ case SMS_CONTROL_MODE_PAGE:
+ case SMS_ALL_PAGES_PAGE:
+ break;
+ default:
+ vhba_fill_sense(csio, SSD_KEY_ILLEGAL_REQUEST, 0x24, 0x0);
+ TAILQ_INSERT_TAIL(&vhbas->vhba->done, &csio->ccb_h, sim_links.tqe);
+ return;
+ }
+ memset(junk, 0, sizeof (junk));
+ if (cdb[1] & SMS_DBD) {
+ ptr = &junk[4];
+ } else {
+ ptr = junk;
+ ptr[3] = 8;
+ ptr[4] = ((1 << DISK_SHIFT) >> 24) & 0xff;
+ ptr[5] = ((1 << DISK_SHIFT) >> 16) & 0xff;
+ ptr[6] = ((1 << DISK_SHIFT) >> 8) & 0xff;
+ ptr[7] = ((1 << DISK_SHIFT)) & 0xff;
+
+ ptr[8] = (DISK_NBLKS >> 24) & 0xff;
+ ptr[9] = (DISK_NBLKS >> 16) & 0xff;
+ ptr[10] = (DISK_NBLKS >> 8) & 0xff;
+ ptr[11] = DISK_NBLKS & 0xff;
+ ptr += 12;
+ }
+
+ if (page == SMS_ALL_PAGES_PAGE || page == SMS_FORMAT_DEVICE_PAGE) {
+ ptr[0] = SMS_FORMAT_DEVICE_PAGE;
+ ptr[1] = 24;
+ if (pgctl != SMS_PAGE_CTRL_CHANGEABLE) {
+ /* tracks per zone */
+ /* ptr[2] = 0; */
+ /* ptr[3] = 0; */
+ /* alternate sectors per zone */
+ /* ptr[4] = 0; */
+ /* ptr[5] = 0; */
+ /* alternate tracks per zone */
+ /* ptr[6] = 0; */
+ /* ptr[7] = 0; */
+ /* alternate tracks per logical unit */
+ /* ptr[8] = 0; */
+ /* ptr[9] = 0; */
+ /* sectors per track */
+ ptr[10] = (PSEUDO_SPT >> 8) & 0xff;
+ ptr[11] = PSEUDO_SPT & 0xff;
+ /* data bytes per physical sector */
+ ptr[12] = ((1 << DISK_SHIFT) >> 8) & 0xff;
+ ptr[13] = (1 << DISK_SHIFT) & 0xff;
+ /* interleave */
+ /* ptr[14] = 0; */
+ /* ptr[15] = 1; */
+ /* track skew factor */
+ /* ptr[16] = 0; */
+ /* ptr[17] = 0; */
+ /* cylinder skew factor */
+ /* ptr[18] = 0; */
+ /* ptr[19] = 0; */
+ /* SSRC, HSEC, RMB, SURF */
+ }
+ ptr += 26;
+ }
+
+ if (page == SMS_ALL_PAGES_PAGE || page == SMS_GEOMETRY_PAGE) {
+ ptr[0] = SMS_GEOMETRY_PAGE;
+ ptr[1] = 24;
+ if (pgctl != SMS_PAGE_CTRL_CHANGEABLE) {
+ uint32_t cyl = (DISK_NBLKS + ((PSEUDO_SPC - 1))) / PSEUDO_SPC;
+ /* number of cylinders */
+ ptr[2] = (cyl >> 24) & 0xff;
+ ptr[3] = (cyl >> 16) & 0xff;
+ ptr[4] = cyl & 0xff;
+ /* number of heads */
+ ptr[5] = PSEUDO_HDS;
+ /* starting cylinder- write precompensation */
+ /* ptr[6] = 0; */
+ /* ptr[7] = 0; */
+ /* ptr[8] = 0; */
+ /* starting cylinder- reduced write current */
+ /* ptr[9] = 0; */
+ /* ptr[10] = 0; */
+ /* ptr[11] = 0; */
+ /* drive step rate */
+ /* ptr[12] = 0; */
+ /* ptr[13] = 0; */
+ /* landing zone cylinder */
+ /* ptr[14] = 0; */
+ /* ptr[15] = 0; */
+ /* ptr[16] = 0; */
+ /* RPL */
+ /* ptr[17] = 0; */
+ /* rotational offset */
+ /* ptr[18] = 0; */
+ /* medium rotation rate - 7200 RPM */
+ ptr[20] = 0x1c;
+ ptr[21] = 0x20;
+ }
+ ptr += 26;
+ }
+
+ if (page == SMS_ALL_PAGES_PAGE || page == SMS_CACHE_PAGE) {
+ ptr[0] = SMS_CACHE_PAGE;
+ ptr[1] = 18;
+ ptr[2] = 1 << 2;
+ ptr += 20;
+ }
+
+ if (page == SMS_ALL_PAGES_PAGE || page == SMS_CONTROL_MODE_PAGE) {
+ ptr[0] = SMS_CONTROL_MODE_PAGE;
+ ptr[1] = 10;
+ if (pgctl != SMS_PAGE_CTRL_CHANGEABLE) {
+ ptr[3] = 1 << 4; /* unrestricted reordering allowed */
+ ptr[8] = 0x75; /* 30000 ms */
+ ptr[9] = 0x30;
+ }
+ ptr += 12;
+ }
+ nbyte = (char *)ptr - &junk[0];
+ ptr[0] = nbyte - 4;
+
+ if (cdb[0] == MODE_SENSE) {
+ data_len = min(cdb[4], csio->dxfer_len);
+ } else {
+ uint16_t tw = (cdb[7] << 8) | cdb[8];
+ data_len = min(tw, csio->dxfer_len);
+ }
+ data_len = min(data_len, nbyte);
+ if (data_len) {
+ memcpy(csio->data_ptr, junk, data_len);
+ }
+ csio->resid = csio->dxfer_len - data_len;
+ break;
+ }
+ case READ_6:
+ case READ_10:
+ case READ_12:
+ case READ_16:
+ case WRITE_6:
+ case WRITE_10:
+ case WRITE_12:
+ case WRITE_16:
+ if (vhba_rwparm(cdb, &off, &data_len, DISK_NBLKS, DISK_SHIFT)) {
+ vhba_fill_sense(csio, SSD_KEY_ILLEGAL_REQUEST, 0x24, 0x0);
+ break;
+ }
+ if (data_len) {
+ if ((cdb[0] & 0xf) == 8) {
+ memcpy(csio->data_ptr, &vhbas->disk[off], data_len);
+ } else {
+ memcpy(&vhbas->disk[off], csio->data_ptr, data_len);
+ }
+ csio->resid = csio->dxfer_len - data_len;
+ } else {
+ csio->resid = csio->dxfer_len;
+ }
+ break;
+
+ case READ_CAPACITY:
+ if (cdb[2] || cdb[3] || cdb[4] || cdb[5]) {
+ vhba_fill_sense(csio, SSD_KEY_UNIT_ATTENTION, 0x24, 0x0);
+ break;
+ }
+ if (cdb[8] & 0x1) { /* PMI */
+ csio->data_ptr[0] = 0xff;
+ csio->data_ptr[1] = 0xff;
+ csio->data_ptr[2] = 0xff;
+ csio->data_ptr[3] = 0xff;
+ } else {
+ uint64_t last_blk = DISK_NBLKS - 1;
+ if (last_blk < 0xffffffffULL) {
+ csio->data_ptr[0] = (last_blk >> 24) & 0xff;
+ csio->data_ptr[1] = (last_blk >> 16) & 0xff;
+ csio->data_ptr[2] = (last_blk >> 8) & 0xff;
+ csio->data_ptr[3] = (last_blk) & 0xff;
+ } else {
+ csio->data_ptr[0] = 0xff;
+ csio->data_ptr[1] = 0xff;
+ csio->data_ptr[2] = 0xff;
+ csio->data_ptr[3] = 0xff;
+ }
+ }
+ csio->data_ptr[4] = ((1 << DISK_SHIFT) >> 24) & 0xff;
+ csio->data_ptr[5] = ((1 << DISK_SHIFT) >> 16) & 0xff;
+ csio->data_ptr[6] = ((1 << DISK_SHIFT) >> 8) & 0xff;
+ csio->data_ptr[7] = ((1 << DISK_SHIFT)) & 0xff;
+ break;
+ default:
+ vhba_default_cmd(csio, MAX_LUN, NULL);
+ break;
+ }
+ if (csio->scsi_status != SCSI_STATUS_OK) {
+ camstatus = CAM_SCSI_STATUS_ERROR;
+ if (csio->scsi_status == SCSI_STATUS_CHECK_COND) {
+ camstatus |= CAM_AUTOSNS_VALID;
+ }
+ } else {
+ csio->scsi_status = SCSI_STATUS_OK;
+ camstatus = CAM_REQ_CMP;
+ }
+ vhba_set_status(&csio->ccb_h, camstatus);
+ TAILQ_INSERT_TAIL(&vhbas->vhba->done, &csio->ccb_h, sim_links.tqe);
+}
+DEV_MODULE(vhba_faulty, vhba_modprobe, NULL);
Added: head/tools/tools/vhba/lots/Makefile
==============================================================================
--- /dev/null 00:00:00 1970 (empty, because file is newly added)
+++ head/tools/tools/vhba/lots/Makefile Tue Jun 8 22:26:47 2010 (r208926)
@@ -0,0 +1,7 @@
+# $FreeBSD$
+KMOD= vlots
+SRCS= vhba_lots.c vhba.c
+CFLAGS += -I${.CURDIR}/.. -DVHBA_MOD=\"vlots\"
+VPATH= ${.CURDIR}/..
+
+.include <bsd.kmod.mk>
Added: head/tools/tools/vhba/lots/vhba_lots.c
==============================================================================
--- /dev/null 00:00:00 1970 (empty, because file is newly added)
+++ head/tools/tools/vhba/lots/vhba_lots.c Tue Jun 8 22:26:47 2010 (r208926)
@@ -0,0 +1,335 @@
+/*-
+ * Copyright (c) 2010 by Panasas, Inc.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice immediately at the beginning of the file, without modification,
+ * this list of conditions, and the following disclaimer.
+ * 2. The name of the author may not be used to endorse or promote products
+ * derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR
+ * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+/* $FreeBSD$ */
+/*
+ * VHBA device that just reate boatloads of devices.
+ */
+#include "vhba.h"
+
+#define MAX_TGT VHBA_MAXTGT
+#define MAX_LUN 32
+
+#define DISK_SIZE 32
+#define DISK_SHIFT 9
+#define DISK_NBLKS ((DISK_SIZE << 20) >> DISK_SHIFT)
+#define PSEUDO_SPT 64
+#define PSEUDO_HDS 64
+#define PSEUDO_SPC (PSEUDO_SPT * PSEUDO_HDS)
+
+typedef struct {
+ vhba_softc_t * vhba;
+ uint8_t * disk;
+ size_t disk_size;
+ struct task qt;
+} vhbalots_t;
+
+static void vhba_task(void *, int);
+static void vhbalots_act(vhbalots_t *, struct ccb_scsiio *);
+
+void
+vhba_init(vhba_softc_t *vhba)
+{
+ static vhbalots_t vhbas;
+ vhbas.vhba = vhba;
+ vhbas.disk_size = DISK_SIZE << 20;
+ vhbas.disk = malloc(vhbas.disk_size, M_DEVBUF, M_WAITOK|M_ZERO);
+ vhba->private = &vhbas;
+ TASK_INIT(&vhbas.qt, 0, vhba_task, &vhbas);
+}
+
+
+void
+vhba_fini(vhba_softc_t *vhba)
+{
+ vhbalots_t *vhbas = vhba->private;
+ vhba->private = NULL;
+ free(vhbas->disk, M_DEVBUF);
+}
+
+void
+vhba_kick(vhba_softc_t *vhba)
+{
+ vhbalots_t *vhbas = vhba->private;
+ taskqueue_enqueue(taskqueue_swi, &vhbas->qt);
+}
+
+static void
+vhba_task(void *arg, int pending)
+{
+ vhbalots_t *vhbas = arg;
+ struct ccb_hdr *ccbh;
+
+ mtx_lock(&vhbas->vhba->lock);
+ while ((ccbh = TAILQ_FIRST(&vhbas->vhba->actv)) != NULL) {
+ TAILQ_REMOVE(&vhbas->vhba->actv, ccbh, sim_links.tqe);
+ vhbalots_act(vhbas, (struct ccb_scsiio *)ccbh);
+ }
+ while ((ccbh = TAILQ_FIRST(&vhbas->vhba->done)) != NULL) {
+ TAILQ_REMOVE(&vhbas->vhba->done, ccbh, sim_links.tqe);
+ xpt_done((union ccb *)ccbh);
+ }
+ mtx_unlock(&vhbas->vhba->lock);
+}
+
+static void
+vhbalots_act(vhbalots_t *vhbas, struct ccb_scsiio *csio)
+{
+ char junk[128];
+ uint8_t *cdb, *ptr, status;
+ uint32_t data_len;
+ uint64_t off;
+
+ data_len = 0;
+ status = SCSI_STATUS_OK;
+
+ memset(&csio->sense_data, 0, sizeof (csio->sense_data));
+ cdb = csio->cdb_io.cdb_bytes;
+
+ if (csio->ccb_h.target_id >= MAX_TGT) {
+ csio->ccb_h.status = CAM_SEL_TIMEOUT;
+ TAILQ_INSERT_TAIL(&vhbas->vhba->done, &csio->ccb_h, sim_links.tqe);
+ return;
+ }
+ if (csio->ccb_h.target_lun >= MAX_LUN && cdb[0] != INQUIRY && cdb[0] != REPORT_LUNS && cdb[0] != REQUEST_SENSE) {
+ vhba_fill_sense(csio, SSD_KEY_ILLEGAL_REQUEST, 0x25, 0x0);
+ TAILQ_INSERT_TAIL(&vhbas->vhba->done, &csio->ccb_h, sim_links.tqe);
+ return;
+ }
+
+ switch (cdb[0]) {
+ case MODE_SENSE:
+ case MODE_SENSE_10:
+ {
+ unsigned int nbyte;
+ uint8_t page = cdb[2] & SMS_PAGE_CODE;
+ uint8_t pgctl = cdb[2] & SMS_PAGE_CTRL_MASK;
+
+ switch (page) {
+ case SMS_FORMAT_DEVICE_PAGE:
+ case SMS_GEOMETRY_PAGE:
+ case SMS_CACHE_PAGE:
+ case SMS_CONTROL_MODE_PAGE:
+ case SMS_ALL_PAGES_PAGE:
+ break;
+ default:
+ vhba_fill_sense(csio, SSD_KEY_ILLEGAL_REQUEST, 0x24, 0x0);
+ TAILQ_INSERT_TAIL(&vhbas->vhba->done, &csio->ccb_h, sim_links.tqe);
+ return;
+ }
+ memset(junk, 0, sizeof (junk));
+ if (cdb[1] & SMS_DBD) {
+ ptr = &junk[4];
+ } else {
+ ptr = junk;
+ ptr[3] = 8;
+ ptr[4] = ((1 << DISK_SHIFT) >> 24) & 0xff;
+ ptr[5] = ((1 << DISK_SHIFT) >> 16) & 0xff;
+ ptr[6] = ((1 << DISK_SHIFT) >> 8) & 0xff;
+ ptr[7] = ((1 << DISK_SHIFT)) & 0xff;
+
+ ptr[8] = (DISK_NBLKS >> 24) & 0xff;
+ ptr[9] = (DISK_NBLKS >> 16) & 0xff;
+ ptr[10] = (DISK_NBLKS >> 8) & 0xff;
+ ptr[11] = DISK_NBLKS & 0xff;
+ ptr += 12;
+ }
+
+ if (page == SMS_ALL_PAGES_PAGE || page == SMS_FORMAT_DEVICE_PAGE) {
+ ptr[0] = SMS_FORMAT_DEVICE_PAGE;
+ ptr[1] = 24;
+ if (pgctl != SMS_PAGE_CTRL_CHANGEABLE) {
+ /* tracks per zone */
+ /* ptr[2] = 0; */
+ /* ptr[3] = 0; */
+ /* alternate sectors per zone */
+ /* ptr[4] = 0; */
+ /* ptr[5] = 0; */
+ /* alternate tracks per zone */
+ /* ptr[6] = 0; */
+ /* ptr[7] = 0; */
+ /* alternate tracks per logical unit */
+ /* ptr[8] = 0; */
+ /* ptr[9] = 0; */
+ /* sectors per track */
+ ptr[10] = (PSEUDO_SPT >> 8) & 0xff;
+ ptr[11] = PSEUDO_SPT & 0xff;
+ /* data bytes per physical sector */
+ ptr[12] = ((1 << DISK_SHIFT) >> 8) & 0xff;
+ ptr[13] = (1 << DISK_SHIFT) & 0xff;
+ /* interleave */
+ /* ptr[14] = 0; */
+ /* ptr[15] = 1; */
+ /* track skew factor */
+ /* ptr[16] = 0; */
+ /* ptr[17] = 0; */
+ /* cylinder skew factor */
+ /* ptr[18] = 0; */
+ /* ptr[19] = 0; */
+ /* SSRC, HSEC, RMB, SURF */
+ }
+ ptr += 26;
+ }
+
+ if (page == SMS_ALL_PAGES_PAGE || page == SMS_GEOMETRY_PAGE) {
+ ptr[0] = SMS_GEOMETRY_PAGE;
+ ptr[1] = 24;
+ if (pgctl != SMS_PAGE_CTRL_CHANGEABLE) {
+ uint32_t cyl = (DISK_NBLKS + ((PSEUDO_SPC - 1))) / PSEUDO_SPC;
+ /* number of cylinders */
+ ptr[2] = (cyl >> 24) & 0xff;
+ ptr[3] = (cyl >> 16) & 0xff;
+ ptr[4] = cyl & 0xff;
+ /* number of heads */
+ ptr[5] = PSEUDO_HDS;
+ /* starting cylinder- write precompensation */
+ /* ptr[6] = 0; */
+ /* ptr[7] = 0; */
+ /* ptr[8] = 0; */
+ /* starting cylinder- reduced write current */
+ /* ptr[9] = 0; */
+ /* ptr[10] = 0; */
+ /* ptr[11] = 0; */
+ /* drive step rate */
+ /* ptr[12] = 0; */
+ /* ptr[13] = 0; */
+ /* landing zone cylinder */
+ /* ptr[14] = 0; */
+ /* ptr[15] = 0; */
+ /* ptr[16] = 0; */
+ /* RPL */
+ /* ptr[17] = 0; */
+ /* rotational offset */
+ /* ptr[18] = 0; */
+ /* medium rotation rate - 7200 RPM */
+ ptr[20] = 0x1c;
+ ptr[21] = 0x20;
+ }
+ ptr += 26;
+ }
+
+ if (page == SMS_ALL_PAGES_PAGE || page == SMS_CACHE_PAGE) {
+ ptr[0] = SMS_CACHE_PAGE;
+ ptr[1] = 18;
+ ptr[2] = 1 << 2;
+ ptr += 20;
+ }
+
+ if (page == SMS_ALL_PAGES_PAGE || page == SMS_CONTROL_MODE_PAGE) {
+ ptr[0] = SMS_CONTROL_MODE_PAGE;
+ ptr[1] = 10;
+ if (pgctl != SMS_PAGE_CTRL_CHANGEABLE) {
+ ptr[3] = 1 << 4; /* unrestricted reordering allowed */
+ ptr[8] = 0x75; /* 30000 ms */
+ ptr[9] = 0x30;
+ }
+ ptr += 12;
+ }
+ nbyte = (char *)ptr - &junk[0];
+ ptr[0] = nbyte - 4;
+
+ if (cdb[0] == MODE_SENSE) {
+ data_len = min(cdb[4], csio->dxfer_len);
+ } else {
+ uint16_t tw = (cdb[7] << 8) | cdb[8];
+ data_len = min(tw, csio->dxfer_len);
+ }
+ data_len = min(data_len, nbyte);
+ if (data_len) {
+ memcpy(csio->data_ptr, junk, data_len);
+ }
+ csio->resid = csio->dxfer_len - data_len;
+ break;
+ }
+ case READ_6:
+ case READ_10:
+ case READ_12:
+ case READ_16:
+ case WRITE_6:
+ case WRITE_10:
+ case WRITE_12:
+ case WRITE_16:
+ if (vhba_rwparm(cdb, &off, &data_len, DISK_NBLKS, DISK_SHIFT)) {
+ vhba_fill_sense(csio, SSD_KEY_ILLEGAL_REQUEST, 0x24, 0x0);
+ break;
+ }
+ if (data_len) {
+ if ((cdb[0] & 0xf) == 8) {
+ memcpy(csio->data_ptr, &vhbas->disk[off], data_len);
+ } else {
+ memcpy(&vhbas->disk[off], csio->data_ptr, data_len);
+ }
+ csio->resid = csio->dxfer_len - data_len;
+ } else {
+ csio->resid = csio->dxfer_len;
+ }
+ break;
+
+ case READ_CAPACITY:
+ if (cdb[2] || cdb[3] || cdb[4] || cdb[5]) {
+ vhba_fill_sense(csio, SSD_KEY_UNIT_ATTENTION, 0x24, 0x0);
+ break;
+ }
+ if (cdb[8] & 0x1) { /* PMI */
+ csio->data_ptr[0] = 0xff;
+ csio->data_ptr[1] = 0xff;
+ csio->data_ptr[2] = 0xff;
+ csio->data_ptr[3] = 0xff;
+ } else {
+ uint64_t last_blk = DISK_NBLKS - 1;
+ if (last_blk < 0xffffffffULL) {
+ csio->data_ptr[0] = (last_blk >> 24) & 0xff;
+ csio->data_ptr[1] = (last_blk >> 16) & 0xff;
+ csio->data_ptr[2] = (last_blk >> 8) & 0xff;
+ csio->data_ptr[3] = (last_blk) & 0xff;
+ } else {
+ csio->data_ptr[0] = 0xff;
+ csio->data_ptr[1] = 0xff;
+ csio->data_ptr[2] = 0xff;
+ csio->data_ptr[3] = 0xff;
+ }
+ }
+ csio->data_ptr[4] = ((1 << DISK_SHIFT) >> 24) & 0xff;
+ csio->data_ptr[5] = ((1 << DISK_SHIFT) >> 16) & 0xff;
+ csio->data_ptr[6] = ((1 << DISK_SHIFT) >> 8) & 0xff;
+ csio->data_ptr[7] = ((1 << DISK_SHIFT)) & 0xff;
+ break;
+ default:
+ vhba_default_cmd(csio, MAX_LUN, NULL);
+ break;
+ }
+ csio->ccb_h.status &= ~CAM_STATUS_MASK;
+ if (csio->scsi_status != SCSI_STATUS_OK) {
+ csio->ccb_h.status |= CAM_SCSI_STATUS_ERROR;
+ if (csio->scsi_status == SCSI_STATUS_CHECK_COND) {
+ csio->ccb_h.status |= CAM_AUTOSNS_VALID;
+ }
+ } else {
+ csio->scsi_status = SCSI_STATUS_OK;
+ csio->ccb_h.status |= CAM_REQ_CMP;
+ }
+ TAILQ_INSERT_TAIL(&vhbas->vhba->done, &csio->ccb_h, sim_links.tqe);
+}
+DEV_MODULE(vhba_lots, vhba_modprobe, NULL);
Added: head/tools/tools/vhba/medium/Makefile
==============================================================================
--- /dev/null 00:00:00 1970 (empty, because file is newly added)
+++ head/tools/tools/vhba/medium/Makefile Tue Jun 8 22:26:47 2010 (r208926)
@@ -0,0 +1,7 @@
+# $FreeBSD$
+KMOD= vmedium
+SRCS= vhba_medium.c vhba.c
+CFLAGS += -I${.CURDIR}/.. -DVHBA_MOD=\"vmedium\"
+VPATH= ${.CURDIR}/..
+
+.include <bsd.kmod.mk>
Added: head/tools/tools/vhba/medium/vhba_medium.c
==============================================================================
--- /dev/null 00:00:00 1970 (empty, because file is newly added)
+++ head/tools/tools/vhba/medium/vhba_medium.c Tue Jun 8 22:26:47 2010 (r208926)
@@ -0,0 +1,337 @@
+/*-
+ * Copyright (c) 2010 by Panasas, Inc.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice immediately at the beginning of the file, without modification,
+ * this list of conditions, and the following disclaimer.
+ * 2. The name of the author may not be used to endorse or promote products
+ * derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR
+ * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+/* $FreeBSD$ */
+/*
+ * A VHBA device that has a medium number of device.
+ */
+#include "vhba.h"
+
+#define MAX_TGT 4
+#define MAX_LUN 10
+
+#define DISK_SIZE 32
+#define DISK_SHIFT 9
+#define DISK_NBLKS ((DISK_SIZE << 20) >> DISK_SHIFT)
+#define PSEUDO_SPT 64
+#define PSEUDO_HDS 64
+#define PSEUDO_SPC (PSEUDO_SPT * PSEUDO_HDS)
+
+typedef struct {
+ vhba_softc_t * vhba;
+ uint8_t * disk;
+ size_t disk_size;
+ struct task qt;
+} vhbamedium_t;
+
+static void vhba_task(void *, int);
+static void vhbamedium_act(vhbamedium_t *, struct ccb_scsiio *);
+
+void
+vhba_init(vhba_softc_t *vhba)
+{
+ static vhbamedium_t vhbas;
+ vhbas.vhba = vhba;
+ vhbas.disk_size = DISK_SIZE << 20;
+ vhbas.disk = malloc(vhbas.disk_size, M_DEVBUF, M_WAITOK|M_ZERO);
+ vhba->private = &vhbas;
+ TASK_INIT(&vhbas.qt, 0, vhba_task, &vhbas);
+}
+
+
+void
+vhba_fini(vhba_softc_t *vhba)
+{
+ vhbamedium_t *vhbas = vhba->private;
+ vhba->private = NULL;
+ free(vhbas->disk, M_DEVBUF);
+}
+
+void
+vhba_kick(vhba_softc_t *vhba)
+{
+ vhbamedium_t *vhbas = vhba->private;
+ taskqueue_enqueue(taskqueue_swi, &vhbas->qt);
+}
+
+static void
+vhba_task(void *arg, int pending)
+{
+ vhbamedium_t *vhbas = arg;
+ struct ccb_hdr *ccbh;
+
+ mtx_lock(&vhbas->vhba->lock);
+ while ((ccbh = TAILQ_FIRST(&vhbas->vhba->actv)) != NULL) {
+ TAILQ_REMOVE(&vhbas->vhba->actv, ccbh, sim_links.tqe);
+ vhbamedium_act(vhbas, (struct ccb_scsiio *)ccbh);
+ }
+ while ((ccbh = TAILQ_FIRST(&vhbas->vhba->done)) != NULL) {
+ TAILQ_REMOVE(&vhbas->vhba->done, ccbh, sim_links.tqe);
+ xpt_done((union ccb *)ccbh);
+ }
+ mtx_unlock(&vhbas->vhba->lock);
+}
+
+static void
+vhbamedium_act(vhbamedium_t *vhbas, struct ccb_scsiio *csio)
+{
+ char junk[128];
+ uint8_t *cdb, *ptr, status;
+ uint32_t data_len;
+ uint64_t off;
+
+ data_len = 0;
+ status = SCSI_STATUS_OK;
+
+ memset(&csio->sense_data, 0, sizeof (csio->sense_data));
+ cdb = csio->cdb_io.cdb_bytes;
+
+ if (csio->ccb_h.target_id >= MAX_TGT) {
+ csio->ccb_h.status = CAM_SEL_TIMEOUT;
+ TAILQ_INSERT_TAIL(&vhbas->vhba->done, &csio->ccb_h, sim_links.tqe);
+ return;
+ }
+ if (csio->ccb_h.target_lun >= MAX_LUN && cdb[0] != INQUIRY && cdb[0] != REPORT_LUNS && cdb[0] != REQUEST_SENSE) {
+ vhba_fill_sense(csio, SSD_KEY_ILLEGAL_REQUEST, 0x25, 0x0);
+ TAILQ_INSERT_TAIL(&vhbas->vhba->done, &csio->ccb_h, sim_links.tqe);
+ return;
+ }
+
+ switch (cdb[0]) {
+ case MODE_SENSE:
+ case MODE_SENSE_10:
+ {
+ unsigned int nbyte;
+ uint8_t page = cdb[2] & SMS_PAGE_CODE;
+ uint8_t pgctl = cdb[2] & SMS_PAGE_CTRL_MASK;
+
+ switch (page) {
+ case SMS_FORMAT_DEVICE_PAGE:
+ case SMS_GEOMETRY_PAGE:
+ case SMS_CACHE_PAGE:
+ case SMS_CONTROL_MODE_PAGE:
+ case SMS_ALL_PAGES_PAGE:
+ break;
+ default:
+ vhba_fill_sense(csio, SSD_KEY_ILLEGAL_REQUEST, 0x24, 0x0);
+ TAILQ_INSERT_TAIL(&vhbas->vhba->done, &csio->ccb_h, sim_links.tqe);
+ return;
+ }
+ memset(junk, 0, sizeof (junk));
+ if (cdb[1] & SMS_DBD) {
+ ptr = &junk[4];
+ } else {
+ ptr = junk;
+ ptr[3] = 8;
+ ptr[4] = ((1 << DISK_SHIFT) >> 24) & 0xff;
+ ptr[5] = ((1 << DISK_SHIFT) >> 16) & 0xff;
+ ptr[6] = ((1 << DISK_SHIFT) >> 8) & 0xff;
+ ptr[7] = ((1 << DISK_SHIFT)) & 0xff;
+
+ ptr[8] = (DISK_NBLKS >> 24) & 0xff;
+ ptr[9] = (DISK_NBLKS >> 16) & 0xff;
+ ptr[10] = (DISK_NBLKS >> 8) & 0xff;
+ ptr[11] = DISK_NBLKS & 0xff;
+ ptr += 12;
+ }
+
+ if (page == SMS_ALL_PAGES_PAGE || page == SMS_FORMAT_DEVICE_PAGE) {
+ ptr[0] = SMS_FORMAT_DEVICE_PAGE;
+ ptr[1] = 24;
+ if (pgctl != SMS_PAGE_CTRL_CHANGEABLE) {
+ /* tracks per zone */
+ /* ptr[2] = 0; */
+ /* ptr[3] = 0; */
+ /* alternate sectors per zone */
+ /* ptr[4] = 0; */
+ /* ptr[5] = 0; */
+ /* alternate tracks per zone */
+ /* ptr[6] = 0; */
+ /* ptr[7] = 0; */
+ /* alternate tracks per logical unit */
+ /* ptr[8] = 0; */
+ /* ptr[9] = 0; */
+ /* sectors per track */
+ ptr[10] = (PSEUDO_SPT >> 8) & 0xff;
+ ptr[11] = PSEUDO_SPT & 0xff;
+ /* data bytes per physical sector */
+ ptr[12] = ((1 << DISK_SHIFT) >> 8) & 0xff;
+ ptr[13] = (1 << DISK_SHIFT) & 0xff;
+ /* interleave */
+ /* ptr[14] = 0; */
+ /* ptr[15] = 1; */
+ /* track skew factor */
+ /* ptr[16] = 0; */
+ /* ptr[17] = 0; */
+ /* cylinder skew factor */
+ /* ptr[18] = 0; */
+ /* ptr[19] = 0; */
+ /* SSRC, HSEC, RMB, SURF */
+ }
+ ptr += 26;
+ }
+
+ if (page == SMS_ALL_PAGES_PAGE || page == SMS_GEOMETRY_PAGE) {
+ ptr[0] = SMS_GEOMETRY_PAGE;
+ ptr[1] = 24;
+ if (pgctl != SMS_PAGE_CTRL_CHANGEABLE) {
+ uint32_t cyl = (DISK_NBLKS + ((PSEUDO_SPC - 1))) / PSEUDO_SPC;
+ /* number of cylinders */
+ ptr[2] = (cyl >> 24) & 0xff;
+ ptr[3] = (cyl >> 16) & 0xff;
+ ptr[4] = cyl & 0xff;
+ /* number of heads */
+ ptr[5] = PSEUDO_HDS;
+ /* starting cylinder- write precompensation */
+ /* ptr[6] = 0; */
+ /* ptr[7] = 0; */
+ /* ptr[8] = 0; */
+ /* starting cylinder- reduced write current */
+ /* ptr[9] = 0; */
+ /* ptr[10] = 0; */
+ /* ptr[11] = 0; */
+ /* drive step rate */
+ /* ptr[12] = 0; */
+ /* ptr[13] = 0; */
+ /* landing zone cylinder */
+ /* ptr[14] = 0; */
+ /* ptr[15] = 0; */
+ /* ptr[16] = 0; */
+ /* RPL */
+ /* ptr[17] = 0; */
+ /* rotational offset */
+ /* ptr[18] = 0; */
+ /* medium rotation rate - 7200 RPM */
*** DIFF OUTPUT TRUNCATED AT 1000 LINES ***
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