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 1.4 2003/07/22 17:03:30 dillon Exp $
32 #include <sys/param.h>
33 #include <sys/systm.h>
34 #include <sys/kernel.h>
35 #include <sys/module.h>
40 #include <sys/devicestat.h>
41 #include <sys/eventhandler.h>
42 #include <sys/malloc.h>
46 #include <machine/stdarg.h>
47 #include <machine/resource.h>
48 #include <machine/bus.h>
50 #include <pci/pcivar.h>
51 #include <pci/pcireg.h>
53 #include "dev/pst/pst-iop.h"
55 /* device structures */
56 static d_strategy_t pststrategy;
57 static struct cdevsw pst_cdevsw = {
64 /* close */ nullclose,
66 /* write */ physwrite,
70 /* strat */ pststrategy,
76 struct iop_softc *iop;
77 struct i2o_lct_entry *lct;
78 struct i2o_bsa_device *info;
82 struct buf_queue_head queue;
87 struct pst_softc *psc; /* pointer to softc */
88 u_int32_t mfa; /* frame addreess */
89 struct callout_handle timeout_handle; /* handle for untimeout */
90 struct buf *bp; /* associated bio ptr */
94 static int pst_probe(device_t);
95 static int pst_attach(device_t);
96 static int pst_shutdown(device_t);
97 static void pst_start(struct pst_softc *);
98 static void pst_done(struct iop_softc *, u_int32_t, struct i2o_single_reply *);
99 static int pst_rw(struct pst_request *);
100 static void pst_timeout(struct pst_request *);
101 static void bpack(int8_t *, int8_t *, int);
104 static MALLOC_DEFINE(M_PSTRAID, "pst", "Promise SuperTrak RAID driver");
107 pst_add_raid(struct iop_softc *sc, struct i2o_lct_entry *lct)
109 struct pst_softc *psc;
110 device_t child = device_add_child(sc->dev, "pst", -1);
114 psc = malloc(sizeof(struct pst_softc), M_PSTRAID, M_NOWAIT | M_ZERO);
117 device_set_softc(child, psc);
118 return bus_generic_attach(sc->dev);
122 pst_probe(device_t dev)
124 device_set_desc(dev, "Promise SuperTrak RAID");
129 pst_attach(device_t dev)
131 struct pst_softc *psc = device_get_softc(dev);
132 struct i2o_get_param_reply *reply;
133 struct i2o_device_identity *ident;
134 int lun = device_get_unit(dev);
137 if (!(reply = iop_get_util_params(psc->iop, psc->lct->local_tid,
138 I2O_PARAMS_OPERATION_FIELD_GET,
139 I2O_BSA_DEVICE_INFO_GROUP_NO)))
142 if (!(psc->info = (struct i2o_bsa_device *)
143 malloc(sizeof(struct i2o_bsa_device), M_PSTRAID, M_NOWAIT))) {
144 contigfree(reply, PAGE_SIZE, M_PSTRAID);
147 bcopy(reply->result, psc->info, sizeof(struct i2o_bsa_device));
148 contigfree(reply, PAGE_SIZE, M_PSTRAID);
150 if (!(reply = iop_get_util_params(psc->iop, psc->lct->local_tid,
151 I2O_PARAMS_OPERATION_FIELD_GET,
152 I2O_UTIL_DEVICE_IDENTITY_GROUP_NO)))
154 ident = (struct i2o_device_identity *)reply->result;
156 printf("pst: vendor=<%.16s> product=<%.16s>\n",
157 ident->vendor, ident->product);
158 printf("pst: description=<%.16s> revision=<%.8s>\n",
159 ident->description, ident->revision);
160 printf("pst: capacity=%lld blocksize=%d\n",
161 psc->info->capacity, psc->info->block_size);
163 bpack(ident->vendor, ident->vendor, 16);
164 bpack(ident->product, ident->product, 16);
165 sprintf(name, "%s %s", ident->vendor, ident->product);
166 contigfree(reply, PAGE_SIZE, M_PSTRAID);
168 bufq_init(&psc->queue);
170 psc->device = disk_create(lun, &psc->disk, 0, &pst_cdevsw);
171 psc->device->si_drv1 = psc;
172 psc->device->si_iosize_max = 64 * 1024; /*I2O_SGL_MAX_SEGS * PAGE_SIZE;*/
174 bzero(&psc->disk.d_label, sizeof(struct disklabel));
175 psc->disk.d_label.d_secsize = psc->info->block_size;
176 psc->disk.d_label.d_nsectors = 63;
177 psc->disk.d_label.d_ntracks = 255;
178 psc->disk.d_label.d_ncylinders =
179 (psc->info->capacity / psc->info->block_size) / (255 * 63);
180 psc->disk.d_label.d_secpercyl = 255 * 63;
181 psc->disk.d_label.d_secperunit =
182 psc->info->capacity / psc->info->block_size;
184 devstat_add_entry(&psc->stats, "pst", lun, psc->info->block_size,
185 DEVSTAT_NO_ORDERED_TAGS,
186 DEVSTAT_TYPE_DIRECT | DEVSTAT_TYPE_IF_IDE,
187 DEVSTAT_PRIORITY_DISK);
189 printf("pst%d: %lluMB <%.40s> [%d/%d/%d] on %.16s\n", lun,
190 (unsigned long long)psc->disk.d_label.d_secperunit / (1024 * 2),
191 name, psc->disk.d_label.d_ncylinders, 255, 63,
192 device_get_nameunit(psc->iop->dev));
194 EVENTHANDLER_REGISTER(shutdown_post_sync, pst_shutdown,
195 dev, SHUTDOWN_PRI_DEFAULT);
201 pst_shutdown(device_t dev)
203 struct pst_softc *psc = device_get_softc(dev);
204 struct i2o_bsa_cache_flush_message *msg;
207 mfa = iop_get_mfa(psc->iop);
208 msg = (struct i2o_bsa_cache_flush_message *)(psc->iop->ibase + mfa);
209 bzero(msg, sizeof(struct i2o_bsa_cache_flush_message));
210 msg->version_offset = 0x01;
211 msg->message_flags = 0x0;
212 msg->message_size = sizeof(struct i2o_bsa_cache_flush_message) >> 2;
213 msg->target_address = psc->lct->local_tid;
214 msg->initiator_address = I2O_TID_HOST;
215 msg->function = I2O_BSA_CACHE_FLUSH;
216 msg->control_flags = 0x0; /* 0x80 = post progress reports */
217 if (iop_queue_wait_msg(psc->iop, mfa, (struct i2o_basic_message *)msg))
218 printf("pst: shutdown failed!\n");
223 pststrategy(struct buf *bp)
225 struct pst_softc *psc = bp->b_dev->si_drv1;
228 bufqdisksort(&psc->queue, bp);
234 pst_start(struct pst_softc *psc)
236 struct pst_request *request;
240 if (psc->outstanding < (I2O_IOP_OUTBOUND_FRAME_COUNT - 1) &&
241 (bp = bufq_first(&psc->queue))) {
242 if ((mfa = iop_get_mfa(psc->iop)) != 0xffffffff) {
243 if (!(request = malloc(sizeof(struct pst_request),
244 M_PSTRAID, M_NOWAIT | M_ZERO))) {
245 printf("pst: out of memory in start\n");
246 iop_free_mfa(psc->iop, mfa);
254 request->timeout_handle.callout = NULL;
256 request->timeout_handle =
257 timeout((timeout_t*)pst_timeout, request, 10 * hz);
258 bufq_remove(&psc->queue, bp);
259 devstat_start_transaction(&psc->stats);
260 if (pst_rw(request)) {
261 devstat_end_transaction_buf(&psc->stats, request->bp);
262 request->bp->b_error = EIO;
263 request->bp->b_flags |= B_ERROR;
264 biodone(request->bp);
265 iop_free_mfa(request->psc->iop, request->mfa);
267 free(request, M_PSTRAID);
274 pst_done(struct iop_softc *sc, u_int32_t mfa, struct i2o_single_reply *reply)
276 struct pst_request *request =
277 (struct pst_request *)reply->transaction_context;
278 struct pst_softc *psc = request->psc;
281 untimeout((timeout_t *)pst_timeout, request, request->timeout_handle);
282 request->bp->b_resid = request->bp->b_bcount - reply->donecount;
283 devstat_end_transaction_buf(&psc->stats, request->bp);
285 request->bp->b_error = EIO;
286 request->bp->b_flags |= B_ERROR;
288 biodone(request->bp);
289 free(request, M_PSTRAID);
291 psc->iop->reg->oqueue = mfa;
298 pst_timeout(struct pst_request *request)
302 printf("pst: timeout mfa=0x%08x cmd=%s\n",
303 request->mfa, request->bp->b_flags & B_READ ? "READ" : "WRITE");
304 iop_free_mfa(request->psc->iop, request->mfa);
305 if ((request->mfa = iop_get_mfa(request->psc->iop)) == 0xffffffff) {
306 printf("pst: timeout no mfa possible\n");
307 devstat_end_transaction_buf(&request->psc->stats, request->bp);
308 request->bp->b_error = EIO;
309 request->bp->b_flags |= B_ERROR;
310 biodone(request->bp);
311 request->psc->outstanding--;
316 request->timeout_handle.callout = NULL;
318 request->timeout_handle =
319 timeout((timeout_t*)pst_timeout, request, 10 * hz);
320 if (pst_rw(request)) {
321 iop_free_mfa(request->psc->iop, request->mfa);
322 devstat_end_transaction_buf(&request->psc->stats, request->bp);
323 request->bp->b_error = EIO;
324 request->bp->b_flags |= B_ERROR;
325 biodone(request->bp);
326 request->psc->outstanding--;
332 pst_rw(struct pst_request *request)
334 struct i2o_bsa_rw_block_message *msg;
337 msg = (struct i2o_bsa_rw_block_message *)
338 (request->psc->iop->ibase + request->mfa);
339 bzero(msg, sizeof(struct i2o_bsa_rw_block_message));
340 msg->version_offset = 0x81;
341 msg->message_flags = 0x0;
342 msg->message_size = sizeof(struct i2o_bsa_rw_block_message) >> 2;
343 msg->target_address = request->psc->lct->local_tid;
344 msg->initiator_address = I2O_TID_HOST;
345 if (request->bp->b_flags & B_READ) {
346 msg->function = I2O_BSA_BLOCK_READ;
347 msg->control_flags = 0x0; /* 0x0c = read cache + readahead */
348 msg->fetch_ahead = 0x0; /* 8 Kb */
352 msg->function = I2O_BSA_BLOCK_WRITE;
353 msg->control_flags = 0x0; /* 0x10 = write behind cache */
354 msg->fetch_ahead = 0x0;
355 sgl_flag = I2O_SGL_DIR;
357 msg->initiator_context = (u_int32_t)pst_done;
358 msg->transaction_context = (u_int32_t)request;
359 msg->time_multiplier = 1;
360 msg->bytecount = request->bp->b_bcount;
361 msg->lba = ((u_int64_t)request->bp->b_pblkno) * (DEV_BSIZE * 1LL);
362 if (!iop_create_sgl((struct i2o_basic_message *)msg, request->bp->b_data,
363 request->bp->b_bcount, sgl_flag))
365 request->psc->iop->reg->iqueue = request->mfa;
370 bpack(int8_t *src, int8_t *dst, int len)
373 int8_t *ptr, *buf = dst;
375 for (i = j = blank = 0 ; i < len; i++) {
376 if (blank && src[i] == ' ') continue;
377 if (blank && src[i] != ' ') {
391 for (ptr = buf; ptr < buf+len; ++ptr)
394 for (ptr = buf + len - 1; ptr >= buf && *ptr == ' '; --ptr)
398 static device_method_t pst_methods[] = {
399 DEVMETHOD(device_probe, pst_probe),
400 DEVMETHOD(device_attach, pst_attach),
404 static driver_t pst_driver = {
407 sizeof(struct pst_softc),
410 static devclass_t pst_devclass;
412 DRIVER_MODULE(pst, pstpci, pst_driver, pst_devclass, 0, 0);