2 * Copyright 2007 Scott Long
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
27 * Redistribution and use in source and binary forms, with or without
28 * modification, are permitted provided that the following conditions
31 * Copyright 1994-2009 The FreeBSD Project.
32 * All rights reserved.
34 * 1. Redistributions of source code must retain the above copyright
35 * notice, this list of conditions and the following disclaimer.
36 * 2. Redistributions in binary form must reproduce the above copyright
37 * notice, this list of conditions and the following disclaimer in the
38 * documentation and/or other materials provided with the distribution.
40 * THIS SOFTWARE IS PROVIDED BY THE FREEBSD PROJECT``AS IS'' AND
41 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
42 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
43 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FREEBSD PROJECT OR
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47 * PROFITS; OR BUSINESS INTERRUPTION)HOWEVER CAUSED AND ON ANY THEORY
48 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
49 * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
50 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
52 * The views and conclusions contained in the software and documentation
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56 * $FreeBSD: src/sys/dev/mfi/mfi_cam.c,v 1.7 2011/10/13 20:06:19 marius Exp $
61 #include <sys/param.h>
62 #include <sys/systm.h>
63 #include <sys/kernel.h>
64 #include <sys/malloc.h>
65 #include <sys/module.h>
68 #include <sys/eventhandler.h>
70 #include <sys/bus_dma.h>
74 #include <sys/signalvar.h>
76 #include <bus/cam/cam.h>
77 #include <bus/cam/cam_ccb.h>
78 #include <bus/cam/cam_debug.h>
79 #include <bus/cam/cam_sim.h>
80 #include <bus/cam/cam_xpt_sim.h>
81 #include <bus/cam/scsi/scsi_all.h>
82 #include <bus/cam/scsi/scsi_message.h>
84 #include <machine/md_var.h>
86 #include <dev/raid/mfi/mfireg.h>
87 #include <dev/raid/mfi/mfi_ioctl.h>
88 #include <dev/raid/mfi/mfivar.h>
92 struct mfi_softc *mfi_sc;
93 struct cam_devq *devq;
95 struct cam_path *path;
98 static int mfip_probe(device_t);
99 static int mfip_attach(device_t);
100 static int mfip_detach(device_t);
101 static void mfip_cam_action(struct cam_sim *, union ccb *);
102 static void mfip_cam_poll(struct cam_sim *);
103 static struct mfi_command * mfip_start(void *);
104 static void mfip_done(struct mfi_command *cm);
106 static devclass_t mfip_devclass;
107 static device_method_t mfip_methods[] = {
108 DEVMETHOD(device_probe, mfip_probe),
109 DEVMETHOD(device_attach, mfip_attach),
110 DEVMETHOD(device_detach, mfip_detach),
113 static driver_t mfip_driver = {
116 sizeof(struct mfip_softc)
118 DRIVER_MODULE(mfip, mfi, mfip_driver, mfip_devclass, NULL, NULL);
119 MODULE_DEPEND(mfip, cam, 1, 1, 1);
120 MODULE_DEPEND(mfip, mfi, 1, 1, 1);
122 #define ccb_mfip_ptr sim_priv.entries[0].ptr
125 mfip_probe(device_t dev)
128 device_set_desc(dev, "SCSI Passthrough Bus");
133 mfip_attach(device_t dev)
135 struct mfip_softc *sc;
136 struct mfi_softc *mfisc;
138 sc = device_get_softc(dev);
142 mfisc = device_get_softc(device_get_parent(dev));
145 mfisc->mfi_cam_start = mfip_start;
147 if ((sc->devq = cam_simq_alloc(MFI_SCSI_MAX_CMDS)) == NULL)
150 sc->sim = cam_sim_alloc(mfip_cam_action, mfip_cam_poll, "mfi", sc,
151 device_get_unit(dev), &mfisc->mfi_io_lock, 1,
152 MFI_SCSI_MAX_CMDS, sc->devq);
153 if (sc->sim == NULL) {
154 device_printf(dev, "CAM SIM attach failed\n");
158 lockmgr(&mfisc->mfi_io_lock, LK_EXCLUSIVE);
159 if (xpt_bus_register(sc->sim, 0) != 0) {
160 device_printf(dev, "XPT bus registration failed\n");
161 cam_sim_free(sc->sim);
162 lockmgr(&mfisc->mfi_io_lock, LK_RELEASE);
165 lockmgr(&mfisc->mfi_io_lock, LK_RELEASE);
171 mfip_detach(device_t dev)
173 struct mfip_softc *sc;
175 sc = device_get_softc(dev);
179 if (sc->sim != NULL) {
180 lockmgr(&sc->mfi_sc->mfi_io_lock, LK_EXCLUSIVE);
181 xpt_bus_deregister(cam_sim_path(sc->sim));
182 cam_sim_free(sc->sim);
183 lockmgr(&sc->mfi_sc->mfi_io_lock, LK_RELEASE);
190 mfip_cam_action(struct cam_sim *sim, union ccb *ccb)
192 struct mfip_softc *sc = cam_sim_softc(sim);
193 struct mfi_softc *mfisc = sc->mfi_sc;
195 KKASSERT(lockstatus(&mfisc->mfi_io_lock, curthread) != 0);
197 switch (ccb->ccb_h.func_code) {
200 struct ccb_pathinq *cpi = &ccb->cpi;
202 cpi->version_num = 1;
203 cpi->hba_inquiry = PI_SDTR_ABLE|PI_TAG_ABLE|PI_WIDE_16;
204 cpi->target_sprt = 0;
205 cpi->hba_misc = PIM_NOBUSRESET|PIM_SEQSCAN;
206 cpi->hba_eng_cnt = 0;
207 cpi->max_target = MFI_SCSI_MAX_TARGETS;
208 cpi->max_lun = MFI_SCSI_MAX_LUNS;
209 cpi->initiator_id = MFI_SCSI_INITIATOR_ID;
210 strncpy(cpi->sim_vid, "FreeBSD", SIM_IDLEN);
211 strncpy(cpi->hba_vid, "LSI", HBA_IDLEN);
212 strncpy(cpi->dev_name, cam_sim_name(sim), DEV_IDLEN);
213 cpi->unit_number = cam_sim_unit(sim);
214 cpi->bus_id = cam_sim_bus(sim);
215 cpi->base_transfer_speed = 150000;
216 cpi->transport = XPORT_SAS;
217 cpi->transport_version = 0;
218 cpi->protocol = PROTO_SCSI;
219 cpi->protocol_version = SCSI_REV_2;
220 cpi->ccb_h.status = CAM_REQ_CMP;
224 ccb->ccb_h.status = CAM_REQ_CMP;
227 ccb->ccb_h.status = CAM_REQ_CMP;
229 case XPT_GET_TRAN_SETTINGS:
231 struct ccb_trans_settings_sas *sas =
232 &ccb->cts.xport_specific.sas;
234 ccb->cts.protocol = PROTO_SCSI;
235 ccb->cts.protocol_version = SCSI_REV_2;
236 ccb->cts.transport = XPORT_SAS;
237 ccb->cts.transport_version = 0;
239 sas->valid &= ~CTS_SAS_VALID_SPEED;
240 sas->bitrate = 150000;
242 ccb->ccb_h.status = CAM_REQ_CMP;
245 case XPT_SET_TRAN_SETTINGS:
246 ccb->ccb_h.status = CAM_FUNC_NOTAVAIL;
250 struct ccb_hdr *ccbh = &ccb->ccb_h;
251 struct ccb_scsiio *csio = &ccb->csio;
253 ccbh->status = CAM_REQ_INPROG;
254 if (csio->cdb_len > MFI_SCSI_MAX_CDB_LEN) {
255 ccbh->status = CAM_REQ_INVALID;
258 if ((ccbh->flags & CAM_DIR_MASK) != CAM_DIR_NONE) {
259 if (ccbh->flags & CAM_DATA_PHYS) {
260 ccbh->status = CAM_REQ_INVALID;
263 if (ccbh->flags & CAM_SCATTER_VALID) {
264 ccbh->status = CAM_REQ_INVALID;
269 ccbh->ccb_mfip_ptr = sc;
270 TAILQ_INSERT_TAIL(&mfisc->mfi_cam_ccbq, ccbh, sim_links.tqe);
275 ccb->ccb_h.status = CAM_REQ_INVALID;
283 static struct mfi_command *
284 mfip_start(void *data)
286 union ccb *ccb = data;
287 struct ccb_hdr *ccbh = &ccb->ccb_h;
288 struct ccb_scsiio *csio = &ccb->csio;
289 struct mfip_softc *sc;
290 struct mfi_pass_frame *pt;
291 struct mfi_command *cm;
292 uint32_t context = 0;
294 sc = ccbh->ccb_mfip_ptr;
296 if ((cm = mfi_dequeue_free(sc->mfi_sc)) == NULL)
299 /* Zero out the MFI frame */
300 context = cm->cm_frame->header.context;
301 bzero(cm->cm_frame, sizeof(union mfi_frame));
302 cm->cm_frame->header.context = context;
304 pt = &cm->cm_frame->pass;
305 pt->header.cmd = MFI_CMD_PD_SCSI_IO;
306 pt->header.cmd_status = 0;
307 pt->header.scsi_status = 0;
308 pt->header.target_id = ccbh->target_id;
309 pt->header.lun_id = ccbh->target_lun;
310 pt->header.flags = 0;
311 pt->header.timeout = 0;
312 pt->header.data_len = csio->dxfer_len;
313 pt->header.sense_len = MFI_SENSE_LEN;
314 pt->header.cdb_len = csio->cdb_len;
315 pt->sense_addr_lo = cm->cm_sense_busaddr;
316 pt->sense_addr_hi = 0;
317 if (ccbh->flags & CAM_CDB_POINTER)
318 bcopy(csio->cdb_io.cdb_ptr, &pt->cdb[0], csio->cdb_len);
320 bcopy(csio->cdb_io.cdb_bytes, &pt->cdb[0], csio->cdb_len);
321 cm->cm_complete = mfip_done;
322 cm->cm_private = ccb;
323 cm->cm_sg = &pt->sgl;
324 cm->cm_total_frame_size = MFI_PASS_FRAME_SIZE;
325 cm->cm_data = csio->data_ptr;
326 cm->cm_len = csio->dxfer_len;
327 switch (ccbh->flags & CAM_DIR_MASK) {
329 cm->cm_flags = MFI_CMD_DATAIN;
332 cm->cm_flags = MFI_CMD_DATAOUT;
342 TAILQ_REMOVE(&sc->mfi_sc->mfi_cam_ccbq, ccbh, sim_links.tqe);
347 mfip_done(struct mfi_command *cm)
349 union ccb *ccb = cm->cm_private;
350 struct ccb_hdr *ccbh = &ccb->ccb_h;
351 struct ccb_scsiio *csio = &ccb->csio;
352 struct mfi_pass_frame *pt;
354 pt = &cm->cm_frame->pass;
356 switch (pt->header.cmd_status) {
359 uint8_t command, device;
361 ccbh->status = CAM_REQ_CMP;
362 csio->scsi_status = pt->header.scsi_status;
363 if (ccbh->flags & CAM_CDB_POINTER)
364 command = csio->cdb_io.cdb_ptr[0];
366 command = csio->cdb_io.cdb_bytes[0];
367 if (command == INQUIRY) {
368 device = csio->data_ptr[0] & 0x1f;
369 if ((device == T_DIRECT) || (device == T_PROCESSOR))
371 (csio->data_ptr[0] & 0xe0) | T_NODEVICE;
375 case MFI_STAT_SCSI_DONE_WITH_ERROR:
379 ccbh->status = CAM_SCSI_STATUS_ERROR | CAM_AUTOSNS_VALID;
380 csio->scsi_status = pt->header.scsi_status;
381 if (pt->header.sense_len < csio->sense_len)
382 csio->sense_resid = csio->sense_len -
383 pt->header.sense_len;
385 csio->sense_resid = 0;
386 sense_len = min(pt->header.sense_len,
387 sizeof(struct scsi_sense_data));
388 bzero(&csio->sense_data, sizeof(struct scsi_sense_data));
389 bcopy(&cm->cm_sense->data[0], &csio->sense_data, sense_len);
392 case MFI_STAT_DEVICE_NOT_FOUND:
393 ccbh->status = CAM_SEL_TIMEOUT;
395 case MFI_STAT_SCSI_IO_FAILED:
396 ccbh->status = CAM_REQ_CMP_ERR;
397 csio->scsi_status = pt->header.scsi_status;
400 ccbh->status = CAM_REQ_CMP_ERR;
401 csio->scsi_status = pt->header.scsi_status;
405 mfi_release_command(cm);
410 mfip_cam_poll(struct cam_sim *sim)