2 * Copyright (c) 2001,2002 Søren Schmidt <sos@FreeBSD.org>
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 * without modification, immediately at the beginning of the file.
11 * 2. Redistributions in binary form must reproduce the above copyright
12 * notice, this list of conditions and the following disclaimer in the
13 * documentation and/or other materials provided with the distribution.
14 * 3. The name of the author may not be used to endorse or promote products
15 * derived from this software without specific prior written permission.
17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
18 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
19 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
20 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
21 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
22 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
23 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
24 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
25 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
26 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
28 * $FreeBSD: src/sys/dev/pst/pst-raid.c,v 1.2.2.1 2002/08/18 12:32:36 sos Exp $
29 * $DragonFly: src/sys/dev/raid/pst/pst-raid.c,v 1.9 2004/05/13 23:49:19 dillon Exp $
32 #include <sys/param.h>
33 #include <sys/systm.h>
34 #include <sys/kernel.h>
35 #include <sys/module.h>
41 #include <sys/devicestat.h>
42 #include <sys/eventhandler.h>
43 #include <sys/malloc.h>
47 #include <machine/stdarg.h>
48 #include <machine/resource.h>
49 #include <machine/bus.h>
51 #include <bus/pci/pcivar.h>
52 #include <bus/pci/pcireg.h>
56 /* device structures */
57 static d_strategy_t pststrategy;
58 static struct cdevsw pst_cdevsw = {
66 /* close */ nullclose,
68 /* write */ physwrite,
72 /* strat */ pststrategy,
78 struct iop_softc *iop;
79 struct i2o_lct_entry *lct;
80 struct i2o_bsa_device *info;
84 struct buf_queue_head queue;
89 struct pst_softc *psc; /* pointer to softc */
90 u_int32_t mfa; /* frame addreess */
91 struct callout_handle timeout_handle; /* handle for untimeout */
92 struct buf *bp; /* associated bio ptr */
96 static int pst_probe(device_t);
97 static int pst_attach(device_t);
99 static int pst_shutdown(device_t);
101 static void pst_start(struct pst_softc *);
102 static void pst_done(struct iop_softc *, u_int32_t, struct i2o_single_reply *);
103 static int pst_rw(struct pst_request *);
104 static void pst_timeout(struct pst_request *);
105 static void bpack(int8_t *, int8_t *, int);
108 static MALLOC_DEFINE(M_PSTRAID, "pst", "Promise SuperTrak RAID driver");
111 pst_add_raid(struct iop_softc *sc, struct i2o_lct_entry *lct)
113 struct pst_softc *psc;
114 device_t child = device_add_child(sc->dev, "pst", -1);
118 psc = malloc(sizeof(struct pst_softc), M_PSTRAID, M_NOWAIT | M_ZERO);
121 device_set_softc(child, psc);
122 return bus_generic_attach(sc->dev);
126 pst_probe(device_t dev)
128 device_set_desc(dev, "Promise SuperTrak RAID");
133 pst_attach(device_t dev)
135 struct pst_softc *psc = device_get_softc(dev);
136 struct i2o_get_param_reply *reply;
137 struct i2o_device_identity *ident;
138 int lun = device_get_unit(dev);
141 if (!(reply = iop_get_util_params(psc->iop, psc->lct->local_tid,
142 I2O_PARAMS_OPERATION_FIELD_GET,
143 I2O_BSA_DEVICE_INFO_GROUP_NO)))
146 if (!(psc->info = (struct i2o_bsa_device *)
147 malloc(sizeof(struct i2o_bsa_device), M_PSTRAID, M_NOWAIT))) {
148 contigfree(reply, PAGE_SIZE, M_PSTRAID);
151 bcopy(reply->result, psc->info, sizeof(struct i2o_bsa_device));
152 contigfree(reply, PAGE_SIZE, M_PSTRAID);
154 if (!(reply = iop_get_util_params(psc->iop, psc->lct->local_tid,
155 I2O_PARAMS_OPERATION_FIELD_GET,
156 I2O_UTIL_DEVICE_IDENTITY_GROUP_NO)))
158 ident = (struct i2o_device_identity *)reply->result;
160 printf("pst: vendor=<%.16s> product=<%.16s>\n",
161 ident->vendor, ident->product);
162 printf("pst: description=<%.16s> revision=<%.8s>\n",
163 ident->description, ident->revision);
164 printf("pst: capacity=%lld blocksize=%d\n",
165 psc->info->capacity, psc->info->block_size);
167 bpack(ident->vendor, ident->vendor, 16);
168 bpack(ident->product, ident->product, 16);
169 sprintf(name, "%s %s", ident->vendor, ident->product);
170 contigfree(reply, PAGE_SIZE, M_PSTRAID);
172 bufq_init(&psc->queue);
174 psc->device = disk_create(lun, &psc->disk, 0, &pst_cdevsw);
175 psc->device->si_drv1 = psc;
176 psc->device->si_iosize_max = 64 * 1024; /*I2O_SGL_MAX_SEGS * PAGE_SIZE;*/
178 bzero(&psc->disk.d_label, sizeof(struct disklabel));
179 psc->disk.d_label.d_secsize = psc->info->block_size;
180 psc->disk.d_label.d_nsectors = 63;
181 psc->disk.d_label.d_ntracks = 255;
182 psc->disk.d_label.d_ncylinders =
183 (psc->info->capacity / psc->info->block_size) / (255 * 63);
184 psc->disk.d_label.d_secpercyl = 255 * 63;
185 psc->disk.d_label.d_secperunit =
186 psc->info->capacity / psc->info->block_size;
188 devstat_add_entry(&psc->stats, "pst", lun, psc->info->block_size,
189 DEVSTAT_NO_ORDERED_TAGS,
190 DEVSTAT_TYPE_DIRECT | DEVSTAT_TYPE_IF_IDE,
191 DEVSTAT_PRIORITY_DISK);
193 printf("pst%d: %lluMB <%.40s> [%d/%d/%d] on %.16s\n", lun,
194 (unsigned long long)psc->disk.d_label.d_secperunit / (1024 * 2),
195 name, psc->disk.d_label.d_ncylinders, 255, 63,
196 device_get_nameunit(psc->iop->dev));
198 EVENTHANDLER_REGISTER(shutdown_post_sync, pst_shutdown,
199 dev, SHUTDOWN_PRI_DEFAULT);
206 pst_shutdown(device_t dev)
208 struct pst_softc *psc = device_get_softc(dev);
209 struct i2o_bsa_cache_flush_message *msg;
212 mfa = iop_get_mfa(psc->iop);
213 msg = (struct i2o_bsa_cache_flush_message *)(psc->iop->ibase + mfa);
214 bzero(msg, sizeof(struct i2o_bsa_cache_flush_message));
215 msg->version_offset = 0x01;
216 msg->message_flags = 0x0;
217 msg->message_size = sizeof(struct i2o_bsa_cache_flush_message) >> 2;
218 msg->target_address = psc->lct->local_tid;
219 msg->initiator_address = I2O_TID_HOST;
220 msg->function = I2O_BSA_CACHE_FLUSH;
221 msg->control_flags = 0x0; /* 0x80 = post progress reports */
222 if (iop_queue_wait_msg(psc->iop, mfa, (struct i2o_basic_message *)msg))
223 printf("pst: shutdown failed!\n");
229 pststrategy(struct buf *bp)
231 struct pst_softc *psc = bp->b_dev->si_drv1;
234 bufqdisksort(&psc->queue, bp);
240 pst_start(struct pst_softc *psc)
242 struct pst_request *request;
246 if (psc->outstanding < (I2O_IOP_OUTBOUND_FRAME_COUNT - 1) &&
247 (bp = bufq_first(&psc->queue))) {
248 if ((mfa = iop_get_mfa(psc->iop)) != 0xffffffff) {
249 if (!(request = malloc(sizeof(struct pst_request),
250 M_PSTRAID, M_NOWAIT | M_ZERO))) {
251 printf("pst: out of memory in start\n");
252 iop_free_mfa(psc->iop, mfa);
260 request->timeout_handle.callout = NULL;
262 request->timeout_handle =
263 timeout((timeout_t*)pst_timeout, request, 10 * hz);
264 bufq_remove(&psc->queue, bp);
265 devstat_start_transaction(&psc->stats);
266 if (pst_rw(request)) {
267 devstat_end_transaction_buf(&psc->stats, request->bp);
268 request->bp->b_error = EIO;
269 request->bp->b_flags |= B_ERROR;
270 biodone(request->bp);
271 iop_free_mfa(request->psc->iop, request->mfa);
273 free(request, M_PSTRAID);
280 pst_done(struct iop_softc *sc, u_int32_t mfa, struct i2o_single_reply *reply)
282 struct pst_request *request =
283 (struct pst_request *)reply->transaction_context;
284 struct pst_softc *psc = request->psc;
287 untimeout((timeout_t *)pst_timeout, request, request->timeout_handle);
288 request->bp->b_resid = request->bp->b_bcount - reply->donecount;
289 devstat_end_transaction_buf(&psc->stats, request->bp);
291 request->bp->b_error = EIO;
292 request->bp->b_flags |= B_ERROR;
294 biodone(request->bp);
295 free(request, M_PSTRAID);
297 psc->iop->reg->oqueue = mfa;
304 pst_timeout(struct pst_request *request)
308 printf("pst: timeout mfa=0x%08x cmd=%s\n",
309 request->mfa, request->bp->b_flags & B_READ ? "READ" : "WRITE");
310 iop_free_mfa(request->psc->iop, request->mfa);
311 if ((request->mfa = iop_get_mfa(request->psc->iop)) == 0xffffffff) {
312 printf("pst: timeout no mfa possible\n");
313 devstat_end_transaction_buf(&request->psc->stats, request->bp);
314 request->bp->b_error = EIO;
315 request->bp->b_flags |= B_ERROR;
316 biodone(request->bp);
317 request->psc->outstanding--;
322 request->timeout_handle.callout = NULL;
324 request->timeout_handle =
325 timeout((timeout_t*)pst_timeout, request, 10 * hz);
326 if (pst_rw(request)) {
327 iop_free_mfa(request->psc->iop, request->mfa);
328 devstat_end_transaction_buf(&request->psc->stats, request->bp);
329 request->bp->b_error = EIO;
330 request->bp->b_flags |= B_ERROR;
331 biodone(request->bp);
332 request->psc->outstanding--;
338 pst_rw(struct pst_request *request)
340 struct i2o_bsa_rw_block_message *msg;
343 msg = (struct i2o_bsa_rw_block_message *)
344 (request->psc->iop->ibase + request->mfa);
345 bzero(msg, sizeof(struct i2o_bsa_rw_block_message));
346 msg->version_offset = 0x81;
347 msg->message_flags = 0x0;
348 msg->message_size = sizeof(struct i2o_bsa_rw_block_message) >> 2;
349 msg->target_address = request->psc->lct->local_tid;
350 msg->initiator_address = I2O_TID_HOST;
351 if (request->bp->b_flags & B_READ) {
352 msg->function = I2O_BSA_BLOCK_READ;
353 msg->control_flags = 0x0; /* 0x0c = read cache + readahead */
354 msg->fetch_ahead = 0x0; /* 8 Kb */
358 msg->function = I2O_BSA_BLOCK_WRITE;
359 msg->control_flags = 0x0; /* 0x10 = write behind cache */
360 msg->fetch_ahead = 0x0;
361 sgl_flag = I2O_SGL_DIR;
363 msg->initiator_context = (u_int32_t)pst_done;
364 msg->transaction_context = (u_int32_t)request;
365 msg->time_multiplier = 1;
366 msg->bytecount = request->bp->b_bcount;
367 msg->lba = ((u_int64_t)request->bp->b_pblkno) * (DEV_BSIZE * 1LL);
368 if (!iop_create_sgl((struct i2o_basic_message *)msg, request->bp->b_data,
369 request->bp->b_bcount, sgl_flag))
371 request->psc->iop->reg->iqueue = request->mfa;
376 bpack(int8_t *src, int8_t *dst, int len)
379 int8_t *ptr, *buf = dst;
381 for (i = j = blank = 0 ; i < len; i++) {
382 if (blank && src[i] == ' ') continue;
383 if (blank && src[i] != ' ') {
397 for (ptr = buf; ptr < buf+len; ++ptr)
400 for (ptr = buf + len - 1; ptr >= buf && *ptr == ' '; --ptr)
404 static device_method_t pst_methods[] = {
405 DEVMETHOD(device_probe, pst_probe),
406 DEVMETHOD(device_attach, pst_attach),
410 static driver_t pst_driver = {
413 sizeof(struct pst_softc),
416 static devclass_t pst_devclass;
418 DRIVER_MODULE(pst, pstpci, pst_driver, pst_devclass, 0, 0);