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 #include <sys/cdefs.h>
28 __FBSDID("$FreeBSD$");
32 #include <sys/param.h>
33 #include <sys/systm.h>
34 #include <sys/kernel.h>
35 #include <sys/malloc.h>
36 #include <sys/module.h>
37 #include <sys/selinfo.h>
40 #include <sys/eventhandler.h>
42 #include <sys/bus_dma.h>
44 #include <sys/ioccom.h>
47 #include <sys/signalvar.h>
50 #include <cam/cam_ccb.h>
51 #include <cam/cam_debug.h>
52 #include <cam/cam_sim.h>
53 #include <cam/cam_xpt_sim.h>
54 #include <cam/scsi/scsi_all.h>
55 #include <cam/scsi/scsi_message.h>
59 #include <machine/md_var.h>
60 #include <machine/bus.h>
61 #include <machine/resource.h>
64 #include <dev/mfi/mfireg.h>
65 #include <dev/mfi/mfi_ioctl.h>
66 #include <dev/mfi/mfivar.h>
70 struct mfi_softc *mfi_sc;
71 struct cam_devq *devq;
73 struct cam_path *path;
76 static int mfip_probe(device_t);
77 static int mfip_attach(device_t);
78 static int mfip_detach(device_t);
79 static void mfip_cam_action(struct cam_sim *, union ccb *);
80 static void mfip_cam_poll(struct cam_sim *);
81 static struct mfi_command * mfip_start(void *);
82 static void mfip_done(struct mfi_command *cm);
84 static devclass_t mfip_devclass;
85 static device_method_t mfip_methods[] = {
86 DEVMETHOD(device_probe, mfip_probe),
87 DEVMETHOD(device_attach, mfip_attach),
88 DEVMETHOD(device_detach, mfip_detach),
91 static driver_t mfip_driver = {
94 sizeof(struct mfip_softc)
96 DRIVER_MODULE(mfip, mfi, mfip_driver, mfip_devclass, 0, 0);
97 MODULE_DEPEND(mfip, cam, 1, 1, 1);
99 #define ccb_mfip_ptr sim_priv.entries[0].ptr
102 mfip_probe(device_t dev)
105 device_set_desc(dev, "SCSI Passthrough Bus");
110 mfip_attach(device_t dev)
112 struct mfip_softc *sc;
113 struct mfi_softc *mfisc;
115 sc = device_get_softc(dev);
119 mfisc = device_get_softc(device_get_parent(dev));
122 mfisc->mfi_cam_start = mfip_start;
124 if ((sc->devq = cam_simq_alloc(MFI_SCSI_MAX_CMDS)) == NULL)
127 sc->sim = cam_sim_alloc(mfip_cam_action, mfip_cam_poll, "mfi", sc,
128 device_get_unit(dev), &mfisc->mfi_io_lock, 1,
129 MFI_SCSI_MAX_CMDS, sc->devq);
130 if (sc->sim == NULL) {
131 cam_simq_free(sc->devq);
132 device_printf(dev, "CAM SIM attach failed\n");
136 mtx_lock(&mfisc->mfi_io_lock);
137 if (xpt_bus_register(sc->sim, dev, 0) != 0) {
138 device_printf(dev, "XPT bus registration failed\n");
139 cam_sim_free(sc->sim, FALSE);
140 cam_simq_free(sc->devq);
141 mtx_unlock(&mfisc->mfi_io_lock);
144 mtx_unlock(&mfisc->mfi_io_lock);
150 mfip_detach(device_t dev)
152 struct mfip_softc *sc;
154 sc = device_get_softc(dev);
158 if (sc->sim != NULL) {
159 mtx_lock(&sc->mfi_sc->mfi_io_lock);
160 xpt_bus_deregister(cam_sim_path(sc->sim));
161 cam_sim_free(sc->sim, FALSE);
162 mtx_unlock(&sc->mfi_sc->mfi_io_lock);
165 if (sc->devq != NULL)
166 cam_simq_free(sc->devq);
172 mfip_cam_action(struct cam_sim *sim, union ccb *ccb)
174 struct mfip_softc *sc = cam_sim_softc(sim);
175 struct mfi_softc *mfisc = sc->mfi_sc;
177 mtx_assert(&mfisc->mfi_io_lock, MA_OWNED);
179 switch (ccb->ccb_h.func_code) {
182 struct ccb_pathinq *cpi = &ccb->cpi;
184 cpi->version_num = 1;
185 cpi->hba_inquiry = PI_SDTR_ABLE|PI_TAG_ABLE|PI_WIDE_16;
186 cpi->target_sprt = 0;
187 cpi->hba_misc = PIM_NOBUSRESET|PIM_SEQSCAN;
188 cpi->hba_eng_cnt = 0;
189 cpi->max_target = MFI_SCSI_MAX_TARGETS;
190 cpi->max_lun = MFI_SCSI_MAX_LUNS;
191 cpi->initiator_id = MFI_SCSI_INITIATOR_ID;
192 strncpy(cpi->sim_vid, "FreeBSD", SIM_IDLEN);
193 strncpy(cpi->hba_vid, "LSI", HBA_IDLEN);
194 strncpy(cpi->dev_name, cam_sim_name(sim), DEV_IDLEN);
195 cpi->unit_number = cam_sim_unit(sim);
196 cpi->bus_id = cam_sim_bus(sim);
197 cpi->base_transfer_speed = 150000;
198 cpi->transport = XPORT_SAS;
199 cpi->transport_version = 0;
200 cpi->protocol = PROTO_SCSI;
201 cpi->protocol_version = SCSI_REV_2;
202 cpi->ccb_h.status = CAM_REQ_CMP;
206 ccb->ccb_h.status = CAM_REQ_CMP;
209 ccb->ccb_h.status = CAM_REQ_CMP;
211 case XPT_GET_TRAN_SETTINGS:
213 struct ccb_trans_settings_sas *sas =
214 &ccb->cts.xport_specific.sas;
216 ccb->cts.protocol = PROTO_SCSI;
217 ccb->cts.protocol_version = SCSI_REV_2;
218 ccb->cts.transport = XPORT_SAS;
219 ccb->cts.transport_version = 0;
221 sas->valid &= ~CTS_SAS_VALID_SPEED;
222 sas->bitrate = 150000;
224 ccb->ccb_h.status = CAM_REQ_CMP;
227 case XPT_SET_TRAN_SETTINGS:
228 ccb->ccb_h.status = CAM_FUNC_NOTAVAIL;
232 struct ccb_hdr *ccbh = &ccb->ccb_h;
233 struct ccb_scsiio *csio = &ccb->csio;
235 ccbh->status = CAM_REQ_INPROG;
236 if (csio->cdb_len > MFI_SCSI_MAX_CDB_LEN) {
237 ccbh->status = CAM_REQ_INVALID;
240 if ((ccbh->flags & CAM_DIR_MASK) != CAM_DIR_NONE) {
241 if (ccbh->flags & CAM_DATA_PHYS) {
242 ccbh->status = CAM_REQ_INVALID;
245 if (ccbh->flags & CAM_SCATTER_VALID) {
246 ccbh->status = CAM_REQ_INVALID;
251 ccbh->ccb_mfip_ptr = sc;
252 TAILQ_INSERT_TAIL(&mfisc->mfi_cam_ccbq, ccbh, sim_links.tqe);
257 ccb->ccb_h.status = CAM_REQ_INVALID;
265 static struct mfi_command *
266 mfip_start(void *data)
268 union ccb *ccb = data;
269 struct ccb_hdr *ccbh = &ccb->ccb_h;
270 struct ccb_scsiio *csio = &ccb->csio;
271 struct mfip_softc *sc;
272 struct mfi_pass_frame *pt;
273 struct mfi_command *cm;
275 sc = ccbh->ccb_mfip_ptr;
277 if ((cm = mfi_dequeue_free(sc->mfi_sc)) == NULL)
280 pt = &cm->cm_frame->pass;
281 pt->header.cmd = MFI_CMD_PD_SCSI_IO;
282 pt->header.cmd_status = 0;
283 pt->header.scsi_status = 0;
284 pt->header.target_id = ccbh->target_id;
285 pt->header.lun_id = ccbh->target_lun;
286 pt->header.flags = 0;
287 pt->header.timeout = 0;
288 pt->header.data_len = csio->dxfer_len;
289 pt->header.sense_len = MFI_SENSE_LEN;
290 pt->header.cdb_len = csio->cdb_len;
291 pt->sense_addr_lo = cm->cm_sense_busaddr;
292 pt->sense_addr_hi = 0;
293 if (ccbh->flags & CAM_CDB_POINTER)
294 bcopy(csio->cdb_io.cdb_ptr, &pt->cdb[0], csio->cdb_len);
296 bcopy(csio->cdb_io.cdb_bytes, &pt->cdb[0], csio->cdb_len);
297 cm->cm_complete = mfip_done;
298 cm->cm_private = ccb;
299 cm->cm_sg = &pt->sgl;
300 cm->cm_total_frame_size = MFI_PASS_FRAME_SIZE;
301 cm->cm_data = csio->data_ptr;
302 cm->cm_len = csio->dxfer_len;
303 switch (ccbh->flags & CAM_DIR_MASK) {
305 cm->cm_flags = MFI_CMD_DATAIN;
308 cm->cm_flags = MFI_CMD_DATAOUT;
318 TAILQ_REMOVE(&sc->mfi_sc->mfi_cam_ccbq, ccbh, sim_links.tqe);
323 mfip_done(struct mfi_command *cm)
325 union ccb *ccb = cm->cm_private;
326 struct ccb_hdr *ccbh = &ccb->ccb_h;
327 struct ccb_scsiio *csio = &ccb->csio;
328 struct mfip_softc *sc;
329 struct mfi_pass_frame *pt;
331 sc = ccbh->ccb_mfip_ptr;
332 pt = &cm->cm_frame->pass;
334 switch (pt->header.cmd_status) {
337 uint8_t command, device;
339 ccbh->status = CAM_REQ_CMP;
340 csio->scsi_status = pt->header.scsi_status;
341 if (ccbh->flags & CAM_CDB_POINTER)
342 command = ccb->csio.cdb_io.cdb_ptr[0];
344 command = ccb->csio.cdb_io.cdb_bytes[0];
345 if (command == INQUIRY) {
346 device = ccb->csio.data_ptr[0] & 0x1f;
347 if ((device == T_DIRECT) || (device == T_PROCESSOR))
349 (device & 0xe0) | T_NODEVICE;
353 case MFI_STAT_SCSI_DONE_WITH_ERROR:
357 ccbh->status = CAM_SCSI_STATUS_ERROR | CAM_AUTOSNS_VALID;
358 csio->scsi_status = pt->header.scsi_status;
359 sense_len = min(pt->header.sense_len, sizeof(struct scsi_sense_data));
360 bzero(&csio->sense_data, sizeof(struct scsi_sense_data));
361 bcopy(&cm->cm_sense->data[0], &csio->sense_data, sense_len);
364 case MFI_STAT_DEVICE_NOT_FOUND:
365 ccbh->status = CAM_SEL_TIMEOUT;
367 case MFI_STAT_SCSI_IO_FAILED:
368 ccbh->status = CAM_REQ_CMP_ERR;
369 csio->scsi_status = pt->header.scsi_status;
372 ccbh->status = CAM_REQ_CMP_ERR;
373 csio->scsi_status = pt->header.scsi_status;
377 mfi_release_command(cm);
382 mfip_cam_poll(struct cam_sim *sim)