mfi(4): Merge LSI's latest driver changes (updates us to version 3.981).
[dragonfly.git] / sys / dev / raid / mfi / mfi_cam.c
CommitLineData
249d29c8
SW
1/*-
2 * Copyright 2007 Scott Long
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
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.
13 *
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
24 * SUCH DAMAGE.
17566092
SW
25 */
26/*-
27 * Redistribution and use in source and binary forms, with or without
28 * modification, are permitted provided that the following conditions
29 * are met:
30 *
31 * Copyright 1994-2009 The FreeBSD Project.
32 * All rights reserved.
33 *
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.
39 *
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
44 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
45 * EXEMPLARY,OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
46 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
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.
51 *
52 * The views and conclusions contained in the software and documentation
53 * are those of the authors and should not be interpreted as representing
54 * official policies,either expressed or implied, of the FreeBSD Project.
249d29c8 55 *
f26fa772 56 * $FreeBSD: src/sys/dev/mfi/mfi_cam.c,v 1.6 2011/06/28 08:36:48 kevlo Exp $
249d29c8
SW
57 */
58
59#include "opt_mfi.h"
60
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>
66#include <sys/bus.h>
67#include <sys/conf.h>
68#include <sys/eventhandler.h>
69#include <sys/rman.h>
70#include <sys/bus_dma.h>
71#include <sys/buf2.h>
72#include <sys/ioccom.h>
73#include <sys/uio.h>
74#include <sys/proc.h>
75#include <sys/signalvar.h>
76
77#include <bus/cam/cam.h>
78#include <bus/cam/cam_ccb.h>
79#include <bus/cam/cam_debug.h>
80#include <bus/cam/cam_sim.h>
81#include <bus/cam/cam_xpt_sim.h>
82#include <bus/cam/scsi/scsi_all.h>
83#include <bus/cam/scsi/scsi_message.h>
84
249d29c8 85#include <machine/md_var.h>
249d29c8
SW
86
87#include <dev/raid/mfi/mfireg.h>
88#include <dev/raid/mfi/mfi_ioctl.h>
89#include <dev/raid/mfi/mfivar.h>
90
91struct mfip_softc {
92 device_t dev;
93 struct mfi_softc *mfi_sc;
94 struct cam_devq *devq;
95 struct cam_sim *sim;
96 struct cam_path *path;
97};
98
99static int mfip_probe(device_t);
100static int mfip_attach(device_t);
101static int mfip_detach(device_t);
102static void mfip_cam_action(struct cam_sim *, union ccb *);
103static void mfip_cam_poll(struct cam_sim *);
104static struct mfi_command * mfip_start(void *);
105static void mfip_done(struct mfi_command *cm);
106
107static devclass_t mfip_devclass;
108static device_method_t mfip_methods[] = {
109 DEVMETHOD(device_probe, mfip_probe),
110 DEVMETHOD(device_attach, mfip_attach),
111 DEVMETHOD(device_detach, mfip_detach),
112 {0, 0}
113};
114static driver_t mfip_driver = {
115 "mfip",
116 mfip_methods,
117 sizeof(struct mfip_softc)
118};
aa2b9d05 119DRIVER_MODULE(mfip, mfi, mfip_driver, mfip_devclass, NULL, NULL);
249d29c8
SW
120MODULE_DEPEND(mfip, cam, 1, 1, 1);
121MODULE_DEPEND(mfip, mfi, 1, 1, 1);
122
123#define ccb_mfip_ptr sim_priv.entries[0].ptr
124
125static int
126mfip_probe(device_t dev)
127{
128
129 device_set_desc(dev, "SCSI Passthrough Bus");
130 return (0);
131}
132
133static int
134mfip_attach(device_t dev)
135{
136 struct mfip_softc *sc;
137 struct mfi_softc *mfisc;
138
139 sc = device_get_softc(dev);
140 if (sc == NULL)
141 return (EINVAL);
142
143 mfisc = device_get_softc(device_get_parent(dev));
144 sc->dev = dev;
145 sc->mfi_sc = mfisc;
146 mfisc->mfi_cam_start = mfip_start;
147
148 if ((sc->devq = cam_simq_alloc(MFI_SCSI_MAX_CMDS)) == NULL)
149 return (ENOMEM);
150
151 sc->sim = cam_sim_alloc(mfip_cam_action, mfip_cam_poll, "mfi", sc,
152 device_get_unit(dev), &mfisc->mfi_io_lock, 1,
153 MFI_SCSI_MAX_CMDS, sc->devq);
154 if (sc->sim == NULL) {
155 device_printf(dev, "CAM SIM attach failed\n");
156 return (EINVAL);
157 }
158
159 lockmgr(&mfisc->mfi_io_lock, LK_EXCLUSIVE);
160 if (xpt_bus_register(sc->sim, 0) != 0) {
161 device_printf(dev, "XPT bus registration failed\n");
162 cam_sim_free(sc->sim);
163 lockmgr(&mfisc->mfi_io_lock, LK_RELEASE);
164 return (EINVAL);
165 }
166 lockmgr(&mfisc->mfi_io_lock, LK_RELEASE);
167
168 return (0);
169}
170
171static int
172mfip_detach(device_t dev)
173{
174 struct mfip_softc *sc;
175
176 sc = device_get_softc(dev);
177 if (sc == NULL)
178 return (EINVAL);
179
180 if (sc->sim != NULL) {
181 lockmgr(&sc->mfi_sc->mfi_io_lock, LK_EXCLUSIVE);
182 xpt_bus_deregister(cam_sim_path(sc->sim));
183 cam_sim_free(sc->sim);
184 lockmgr(&sc->mfi_sc->mfi_io_lock, LK_RELEASE);
185 }
186
187 return (0);
188}
189
190static void
191mfip_cam_action(struct cam_sim *sim, union ccb *ccb)
192{
193 struct mfip_softc *sc = cam_sim_softc(sim);
194 struct mfi_softc *mfisc = sc->mfi_sc;
195
196 KKASSERT(lockstatus(&mfisc->mfi_io_lock, curthread) != 0);
197
198 switch (ccb->ccb_h.func_code) {
199 case XPT_PATH_INQ:
200 {
201 struct ccb_pathinq *cpi = &ccb->cpi;
202
203 cpi->version_num = 1;
204 cpi->hba_inquiry = PI_SDTR_ABLE|PI_TAG_ABLE|PI_WIDE_16;
205 cpi->target_sprt = 0;
206 cpi->hba_misc = PIM_NOBUSRESET|PIM_SEQSCAN;
207 cpi->hba_eng_cnt = 0;
208 cpi->max_target = MFI_SCSI_MAX_TARGETS;
209 cpi->max_lun = MFI_SCSI_MAX_LUNS;
210 cpi->initiator_id = MFI_SCSI_INITIATOR_ID;
211 strncpy(cpi->sim_vid, "FreeBSD", SIM_IDLEN);
212 strncpy(cpi->hba_vid, "LSI", HBA_IDLEN);
213 strncpy(cpi->dev_name, cam_sim_name(sim), DEV_IDLEN);
214 cpi->unit_number = cam_sim_unit(sim);
215 cpi->bus_id = cam_sim_bus(sim);
216 cpi->base_transfer_speed = 150000;
217 cpi->transport = XPORT_SAS;
218 cpi->transport_version = 0;
219 cpi->protocol = PROTO_SCSI;
220 cpi->protocol_version = SCSI_REV_2;
221 cpi->ccb_h.status = CAM_REQ_CMP;
222 break;
223 }
224 case XPT_RESET_BUS:
225 ccb->ccb_h.status = CAM_REQ_CMP;
226 break;
227 case XPT_RESET_DEV:
228 ccb->ccb_h.status = CAM_REQ_CMP;
229 break;
230 case XPT_GET_TRAN_SETTINGS:
231 {
232 struct ccb_trans_settings_sas *sas =
233 &ccb->cts.xport_specific.sas;
234
235 ccb->cts.protocol = PROTO_SCSI;
236 ccb->cts.protocol_version = SCSI_REV_2;
237 ccb->cts.transport = XPORT_SAS;
238 ccb->cts.transport_version = 0;
239
240 sas->valid &= ~CTS_SAS_VALID_SPEED;
241 sas->bitrate = 150000;
242
243 ccb->ccb_h.status = CAM_REQ_CMP;
244 break;
245 }
246 case XPT_SET_TRAN_SETTINGS:
247 ccb->ccb_h.status = CAM_FUNC_NOTAVAIL;
248 break;
249 case XPT_SCSI_IO:
250 {
251 struct ccb_hdr *ccbh = &ccb->ccb_h;
252 struct ccb_scsiio *csio = &ccb->csio;
253
254 ccbh->status = CAM_REQ_INPROG;
255 if (csio->cdb_len > MFI_SCSI_MAX_CDB_LEN) {
256 ccbh->status = CAM_REQ_INVALID;
257 break;
258 }
259 if ((ccbh->flags & CAM_DIR_MASK) != CAM_DIR_NONE) {
260 if (ccbh->flags & CAM_DATA_PHYS) {
261 ccbh->status = CAM_REQ_INVALID;
262 break;
263 }
264 if (ccbh->flags & CAM_SCATTER_VALID) {
265 ccbh->status = CAM_REQ_INVALID;
266 break;
267 }
268 }
269
270 ccbh->ccb_mfip_ptr = sc;
271 TAILQ_INSERT_TAIL(&mfisc->mfi_cam_ccbq, ccbh, sim_links.tqe);
272 mfi_startio(mfisc);
273 return;
274 }
275 default:
276 ccb->ccb_h.status = CAM_REQ_INVALID;
277 break;
278 }
279
280 xpt_done(ccb);
281 return;
282}
283
284static struct mfi_command *
285mfip_start(void *data)
286{
287 union ccb *ccb = data;
288 struct ccb_hdr *ccbh = &ccb->ccb_h;
289 struct ccb_scsiio *csio = &ccb->csio;
290 struct mfip_softc *sc;
291 struct mfi_pass_frame *pt;
292 struct mfi_command *cm;
17566092 293 uint32_t context = 0;
249d29c8
SW
294
295 sc = ccbh->ccb_mfip_ptr;
296
297 if ((cm = mfi_dequeue_free(sc->mfi_sc)) == NULL)
298 return (NULL);
299
17566092
SW
300 /* Zero out the MFI frame */
301 context = cm->cm_frame->header.context;
302 bzero(cm->cm_frame, sizeof(union mfi_frame));
303 cm->cm_frame->header.context = context;
304
249d29c8
SW
305 pt = &cm->cm_frame->pass;
306 pt->header.cmd = MFI_CMD_PD_SCSI_IO;
307 pt->header.cmd_status = 0;
308 pt->header.scsi_status = 0;
309 pt->header.target_id = ccbh->target_id;
310 pt->header.lun_id = ccbh->target_lun;
311 pt->header.flags = 0;
312 pt->header.timeout = 0;
313 pt->header.data_len = csio->dxfer_len;
314 pt->header.sense_len = MFI_SENSE_LEN;
315 pt->header.cdb_len = csio->cdb_len;
316 pt->sense_addr_lo = cm->cm_sense_busaddr;
317 pt->sense_addr_hi = 0;
318 if (ccbh->flags & CAM_CDB_POINTER)
319 bcopy(csio->cdb_io.cdb_ptr, &pt->cdb[0], csio->cdb_len);
320 else
321 bcopy(csio->cdb_io.cdb_bytes, &pt->cdb[0], csio->cdb_len);
322 cm->cm_complete = mfip_done;
323 cm->cm_private = ccb;
324 cm->cm_sg = &pt->sgl;
325 cm->cm_total_frame_size = MFI_PASS_FRAME_SIZE;
326 cm->cm_data = csio->data_ptr;
327 cm->cm_len = csio->dxfer_len;
328 switch (ccbh->flags & CAM_DIR_MASK) {
329 case CAM_DIR_IN:
330 cm->cm_flags = MFI_CMD_DATAIN;
331 break;
332 case CAM_DIR_OUT:
333 cm->cm_flags = MFI_CMD_DATAOUT;
334 break;
335 case CAM_DIR_NONE:
336 default:
337 cm->cm_data = NULL;
338 cm->cm_len = 0;
339 cm->cm_flags = 0;
340 break;
341 }
342
343 TAILQ_REMOVE(&sc->mfi_sc->mfi_cam_ccbq, ccbh, sim_links.tqe);
344 return (cm);
345}
346
347static void
348mfip_done(struct mfi_command *cm)
349{
350 union ccb *ccb = cm->cm_private;
351 struct ccb_hdr *ccbh = &ccb->ccb_h;
352 struct ccb_scsiio *csio = &ccb->csio;
249d29c8
SW
353 struct mfi_pass_frame *pt;
354
249d29c8
SW
355 pt = &cm->cm_frame->pass;
356
357 switch (pt->header.cmd_status) {
358 case MFI_STAT_OK:
359 {
360 uint8_t command, device;
361
362 ccbh->status = CAM_REQ_CMP;
363 csio->scsi_status = pt->header.scsi_status;
364 if (ccbh->flags & CAM_CDB_POINTER)
769308d7 365 command = csio->cdb_io.cdb_ptr[0];
249d29c8 366 else
769308d7 367 command = csio->cdb_io.cdb_bytes[0];
249d29c8 368 if (command == INQUIRY) {
769308d7 369 device = csio->data_ptr[0] & 0x1f;
249d29c8
SW
370 if ((device == T_DIRECT) || (device == T_PROCESSOR))
371 csio->data_ptr[0] =
ede4fee5 372 (csio->data_ptr[0] & 0xe0) | T_NODEVICE;
249d29c8
SW
373 }
374 break;
375 }
376 case MFI_STAT_SCSI_DONE_WITH_ERROR:
377 {
378 int sense_len;
379
380 ccbh->status = CAM_SCSI_STATUS_ERROR | CAM_AUTOSNS_VALID;
381 csio->scsi_status = pt->header.scsi_status;
382 sense_len = min(pt->header.sense_len, sizeof(struct scsi_sense_data));
383 bzero(&csio->sense_data, sizeof(struct scsi_sense_data));
384 bcopy(&cm->cm_sense->data[0], &csio->sense_data, sense_len);
385 break;
386 }
387 case MFI_STAT_DEVICE_NOT_FOUND:
388 ccbh->status = CAM_SEL_TIMEOUT;
389 break;
390 case MFI_STAT_SCSI_IO_FAILED:
391 ccbh->status = CAM_REQ_CMP_ERR;
392 csio->scsi_status = pt->header.scsi_status;
393 break;
394 default:
395 ccbh->status = CAM_REQ_CMP_ERR;
396 csio->scsi_status = pt->header.scsi_status;
397 break;
398 }
399
400 mfi_release_command(cm);
401 xpt_done(ccb);
402}
403
404static void
405mfip_cam_poll(struct cam_sim *sim)
406{
407 return;
408}