1/*-
2 * Copyright (c) 1997-2006 by Matthew Jacob
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 immediately at the beginning of the file, without modification,
10 * this list of conditions, and the following disclaimer.
11 * 2. The name of the author may not be used to endorse or promote products
12 * derived from this software without specific prior written permission.
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 FOR
18 * 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.
25 */
26/*
27 * SBus specific probe and attach routines for Qlogic ISP SCSI adapters.
28 * FreeBSD Version.
29 */
30
31#include <sys/cdefs.h>
| 1/*-
2 * Copyright (c) 1997-2006 by Matthew Jacob
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 immediately at the beginning of the file, without modification,
10 * this list of conditions, and the following disclaimer.
11 * 2. The name of the author may not be used to endorse or promote products
12 * derived from this software without specific prior written permission.
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 FOR
18 * 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.
25 */
26/*
27 * SBus specific probe and attach routines for Qlogic ISP SCSI adapters.
28 * FreeBSD Version.
29 */
30
31#include <sys/cdefs.h>
|
32__FBSDID("$FreeBSD: head/sys/dev/isp/isp_sbus.c 166165 2007-01-21 19:32:51Z marius $");
| 32__FBSDID("$FreeBSD: head/sys/dev/isp/isp_sbus.c 166177 2007-01-23 00:02:29Z mjacob $");
|
33
34#include <sys/param.h>
35#include <sys/systm.h>
36#if __FreeBSD_version >= 700000
37#include <sys/linker.h>
38#include <sys/firmware.h>
39#endif
40#include <sys/bus.h>
41#include <sys/kernel.h>
42#include <sys/module.h>
43#include <sys/resource.h>
44
45#include <dev/ofw/ofw_bus.h>
46
47#include <machine/bus.h>
48#include <machine/resource.h>
49#include <sys/rman.h>
50#include <sparc64/sbus/sbusvar.h>
51
52#include <dev/isp/isp_freebsd.h>
53
54static uint32_t
55isp_sbus_rd_reg(ispsoftc_t *, int);
56static void
57isp_sbus_wr_reg(ispsoftc_t *, int, uint32_t);
58static int
59isp_sbus_rd_isr(ispsoftc_t *, uint32_t *, uint16_t *, uint16_t *);
60static int isp_sbus_mbxdma(ispsoftc_t *);
61static int
62isp_sbus_dmasetup(ispsoftc_t *, XS_T *, ispreq_t *, uint32_t *, uint32_t);
63static void
64isp_sbus_dmateardown(ispsoftc_t *, XS_T *, uint32_t);
65
66static void isp_sbus_reset0(ispsoftc_t *);
67static void isp_sbus_reset1(ispsoftc_t *);
68static void isp_sbus_dumpregs(ispsoftc_t *, const char *);
69
70static struct ispmdvec mdvec = {
71 isp_sbus_rd_isr,
72 isp_sbus_rd_reg,
73 isp_sbus_wr_reg,
74 isp_sbus_mbxdma,
75 isp_sbus_dmasetup,
76 isp_sbus_dmateardown,
77 isp_sbus_reset0,
78 isp_sbus_reset1,
79 isp_sbus_dumpregs,
80 NULL,
81 BIU_BURST_ENABLE|BIU_PCI_CONF1_FIFO_64
82};
83
84static int isp_sbus_probe (device_t);
85static int isp_sbus_attach (device_t);
86
87
88struct isp_sbussoftc {
89 ispsoftc_t sbus_isp;
90 device_t sbus_dev;
91 struct resource * sbus_reg;
92 bus_space_tag_t sbus_st;
93 bus_space_handle_t sbus_sh;
94 void * ih;
95 int16_t sbus_poff[_NREG_BLKS];
96 bus_dma_tag_t dmat;
97 bus_dmamap_t *dmaps;
98 sdparam sbus_param;
99 struct ispmdvec sbus_mdvec;
100 struct resource * sbus_ires;
101};
102
103
104static device_method_t isp_sbus_methods[] = {
105 /* Device interface */
106 DEVMETHOD(device_probe, isp_sbus_probe),
107 DEVMETHOD(device_attach, isp_sbus_attach),
108 { 0, 0 }
109};
110static void isp_sbus_intr(void *);
111
112static driver_t isp_sbus_driver = {
113 "isp", isp_sbus_methods, sizeof (struct isp_sbussoftc)
114};
115static devclass_t isp_devclass;
116DRIVER_MODULE(isp, sbus, isp_sbus_driver, isp_devclass, 0, 0);
117#if __FreeBSD_version < 700000
118extern ispfwfunc *isp_get_firmware_p;
119#endif
120
121static int
122isp_sbus_probe(device_t dev)
123{
124 int found = 0;
125 const char *name = ofw_bus_get_name(dev);
126 if (strcmp(name, "SUNW,isp") == 0 ||
127 strcmp(name, "QLGC,isp") == 0 ||
128 strcmp(name, "ptisp") == 0 ||
129 strcmp(name, "PTI,ptisp") == 0) {
130 found++;
131 }
132 if (!found)
133 return (ENXIO);
134
135 if (isp_announced == 0 && bootverbose) {
136 printf("Qlogic ISP Driver, FreeBSD Version %d.%d, "
137 "Core Version %d.%d\n",
138 ISP_PLATFORM_VERSION_MAJOR, ISP_PLATFORM_VERSION_MINOR,
139 ISP_CORE_VERSION_MAJOR, ISP_CORE_VERSION_MINOR);
140 isp_announced++;
141 }
142 return (0);
143}
144
145static int
146isp_sbus_attach(device_t dev)
147{
148 struct resource *regs;
149 int tval, iqd, isp_debug, role, rid, ispburst;
150 struct isp_sbussoftc *sbs;
151 ispsoftc_t *isp = NULL;
152 int locksetup = 0;
153 int ints_setup = 0;
154
155 /*
156 * Figure out if we're supposed to skip this one.
157 * If we are, we actually go to ISP_ROLE_NONE.
158 */
159
160 tval = 0;
161 if (resource_int_value(device_get_name(dev), device_get_unit(dev),
162 "disable", &tval) == 0 && tval) {
163 device_printf(dev, "device is disabled\n");
164 /* but return 0 so the !$)$)*!$*) unit isn't reused */
165 return (0);
166 }
167
168 role = 0;
169 if (resource_int_value(device_get_name(dev), device_get_unit(dev),
170 "role", &role) == 0 &&
171 ((role & ~(ISP_ROLE_INITIATOR|ISP_ROLE_TARGET)) == 0)) {
172 device_printf(dev, "setting role to 0x%x\n", role);
173 } else {
174#ifdef ISP_TARGET_MODE
175 role = ISP_ROLE_INITIATOR|ISP_ROLE_TARGET;
176#else
177 role = ISP_DEFAULT_ROLES;
178#endif
179 }
180
181 sbs = malloc(sizeof (*sbs), M_DEVBUF, M_NOWAIT | M_ZERO);
182 if (sbs == NULL) {
183 device_printf(dev, "cannot allocate softc\n");
184 return (ENOMEM);
185 }
186
187 regs = NULL;
188 iqd = 0;
189 rid = 0;
190 regs = bus_alloc_resource_any(dev, SYS_RES_MEMORY, &rid, RF_ACTIVE);
191 if (regs == 0) {
192 device_printf(dev, "unable to map registers\n");
193 goto bad;
194 }
195 sbs->sbus_dev = dev;
196 sbs->sbus_reg = regs;
197 sbs->sbus_st = rman_get_bustag(regs);
198 sbs->sbus_sh = rman_get_bushandle(regs);
199 sbs->sbus_mdvec = mdvec;
200
201 sbs->sbus_poff[BIU_BLOCK >> _BLK_REG_SHFT] = BIU_REGS_OFF;
202 sbs->sbus_poff[MBOX_BLOCK >> _BLK_REG_SHFT] = SBUS_MBOX_REGS_OFF;
203 sbs->sbus_poff[SXP_BLOCK >> _BLK_REG_SHFT] = SBUS_SXP_REGS_OFF;
204 sbs->sbus_poff[RISC_BLOCK >> _BLK_REG_SHFT] = SBUS_RISC_REGS_OFF;
205 sbs->sbus_poff[DMA_BLOCK >> _BLK_REG_SHFT] = DMA_REGS_OFF;
206 isp = &sbs->sbus_isp;
207 isp->isp_mdvec = &sbs->sbus_mdvec;
208 isp->isp_bustype = ISP_BT_SBUS;
209 isp->isp_type = ISP_HA_SCSI_UNKNOWN;
210 isp->isp_param = &sbs->sbus_param;
211 isp->isp_revision = 0; /* XXX */
212 isp->isp_role = role;
213 isp->isp_dev = dev;
214
215 /*
216 * Get the clock frequency and convert it from HZ to MHz,
217 * rounding up. This defaults to 25MHz if there isn't a
218 * device specific one in the OFW device tree.
219 */
220 sbs->sbus_mdvec.dv_clock = (sbus_get_clockfreq(dev) + 500000)/1000000;
221
222 /*
223 * Now figure out what the proper burst sizes, etc., to use.
224 * Unfortunately, there is no ddi_dma_burstsizes here which
225 * walks up the tree finding the limiting burst size node (if
226 * any). We just use what's here for isp.
227 */
228 ispburst = sbus_get_burstsz(dev);
229 if (ispburst == 0) {
230 ispburst = SBUS_BURST_32 - 1;
231 }
232 sbs->sbus_mdvec.dv_conf1 = 0;
233 if (ispburst & (1 << 5)) {
234 sbs->sbus_mdvec.dv_conf1 = BIU_SBUS_CONF1_FIFO_32;
235 } else if (ispburst & (1 << 4)) {
236 sbs->sbus_mdvec.dv_conf1 = BIU_SBUS_CONF1_FIFO_16;
237 } else if (ispburst & (1 << 3)) {
238 sbs->sbus_mdvec.dv_conf1 =
239 BIU_SBUS_CONF1_BURST8 | BIU_SBUS_CONF1_FIFO_8;
240 }
241 if (sbs->sbus_mdvec.dv_conf1) {
242 sbs->sbus_mdvec.dv_conf1 |= BIU_BURST_ENABLE;
243 }
244
245 /*
246 * We don't trust NVRAM on SBus cards
247 */
248 isp->isp_confopts |= ISP_CFG_NONVRAM;
249
250 /*
251 * Mark things if we're a PTI SBus adapter.
252 */
253 if (strcmp("PTI,ptisp", ofw_bus_get_name(dev)) == 0 ||
254 strcmp("ptisp", ofw_bus_get_name(dev)) == 0) {
255 SDPARAM(isp)->isp_ptisp = 1;
256 }
257
258
259#if __FreeBSD_version >= 700000
260 isp->isp_osinfo.fw = firmware_get("isp_1000");
261 if (isp->isp_osinfo.fw) {
262 union {
263 const void *cp;
264 uint16_t *sp;
265 } stupid;
266 stupid.cp = isp->isp_osinfo.fw->data;
267 isp->isp_mdvec->dv_ispfw = stupid.sp;
268 }
269#else
270 /*
271 * Try and find firmware for this device.
272 */
273 if (isp_get_firmware_p) {
274 (*isp_get_firmware_p)(0, 0, 0x1000, &sbs->sbus_mdvec.dv_ispfw);
275 }
276#endif
277
278 tval = 0;
279 if (resource_int_value(device_get_name(dev), device_get_unit(dev),
280 "fwload_disable", &tval) == 0 && tval != 0) {
281 isp->isp_confopts |= ISP_CFG_NORELOAD;
282 }
283
284 isp->isp_osinfo.default_id = -1;
285 if (resource_int_value(device_get_name(dev), device_get_unit(dev),
286 "iid", &tval) == 0) {
287 isp->isp_osinfo.default_id = tval;
288 isp->isp_confopts |= ISP_CFG_OWNLOOPID;
289 }
290 if (isp->isp_osinfo.default_id == -1) {
291 /*
292 * XXX: should be a way to get properties w/o having
293 * XXX: to call OF_xxx functions
294 */
295 isp->isp_osinfo.default_id = 7;
296 }
297
298 isp_debug = 0;
299 (void) resource_int_value(device_get_name(dev), device_get_unit(dev),
300 "debug", &isp_debug);
301
302 /* Make sure the lock is set up. */
303 mtx_init(&isp->isp_osinfo.lock, "isp", NULL, MTX_DEF);
304 locksetup++;
305
306 iqd = 0;
307 sbs->sbus_ires = bus_alloc_resource_any(dev, SYS_RES_IRQ, &iqd,
308 RF_ACTIVE | RF_SHAREABLE);
309 if (sbs->sbus_ires == NULL) {
310 device_printf(dev, "could not allocate interrupt\n");
311 goto bad;
312 }
313
314 if (bus_setup_intr(dev, sbs->sbus_ires, ISP_IFLAGS,
315 isp_sbus_intr, isp, &sbs->ih)) {
316 device_printf(dev, "could not setup interrupt\n");
317 goto bad;
318 }
319 ints_setup++;
320
321 /*
322 * Set up logging levels.
323 */
324 if (isp_debug) {
325 isp->isp_dblev = isp_debug;
326 } else {
327 isp->isp_dblev = ISP_LOGWARN|ISP_LOGERR;
328 }
329 if (bootverbose) {
330 isp->isp_dblev |= ISP_LOGCONFIG|ISP_LOGINFO;
331 }
332
333 /*
334 * Make sure we're in reset state.
335 */
336 ISP_LOCK(isp);
337 isp_reset(isp);
338 if (isp->isp_state != ISP_RESETSTATE) {
339 isp_uninit(isp);
340 ISP_UNLOCK(isp);
341 goto bad;
342 }
343 isp_init(isp);
344 if (isp->isp_role != ISP_ROLE_NONE && isp->isp_state != ISP_INITSTATE) {
345 isp_uninit(isp);
346 ISP_UNLOCK(isp);
347 goto bad;
348 }
349 isp_attach(isp);
350 if (isp->isp_role != ISP_ROLE_NONE && isp->isp_state != ISP_RUNSTATE) {
351 isp_uninit(isp);
352 ISP_UNLOCK(isp);
353 goto bad;
354 }
355 ISP_UNLOCK(isp);
356 return (0);
357
358bad:
359
360 if (sbs && ints_setup) {
361 (void) bus_teardown_intr(dev, sbs->sbus_ires, sbs->ih);
362 }
363
364 if (sbs && sbs->sbus_ires) {
365 bus_release_resource(dev, SYS_RES_IRQ, iqd, sbs->sbus_ires);
366 }
367
368 if (locksetup && isp) {
369 mtx_destroy(&isp->isp_osinfo.lock);
370 }
371
372 if (regs) {
373 (void) bus_release_resource(dev, 0, 0, regs);
374 }
375
376 if (sbs) {
377 if (sbs->sbus_isp.isp_param) {
378 free(sbs->sbus_isp.isp_param, M_DEVBUF);
379 }
380 free(sbs, M_DEVBUF);
381 }
382 return (ENXIO);
383}
384
385static void
386isp_sbus_intr(void *arg)
387{
388 ispsoftc_t *isp = arg;
389 uint32_t isr;
390 uint16_t sema, mbox;
391
392 ISP_LOCK(isp);
393 isp->isp_intcnt++;
394 if (ISP_READ_ISR(isp, &isr, &sema, &mbox) == 0) {
395 isp->isp_intbogus++;
396 } else {
397 isp_intr(isp, isr, sema, mbox);
398 }
399 ISP_UNLOCK(isp);
400}
401
402#define IspVirt2Off(a, x) \
403 (((struct isp_sbussoftc *)a)->sbus_poff[((x) & _BLK_REG_MASK) >> \
404 _BLK_REG_SHFT] + ((x) & 0xff))
405
406#define BXR2(sbc, off) \
407 bus_space_read_2(sbc->sbus_st, sbc->sbus_sh, off)
408
409static int
410isp_sbus_rd_isr(ispsoftc_t *isp, uint32_t *isrp, uint16_t *semap, uint16_t *mbp)
411{
412 struct isp_sbussoftc *sbc = (struct isp_sbussoftc *) isp;
413 uint16_t isr, sema;
414
415 isr = BXR2(sbc, IspVirt2Off(isp, BIU_ISR));
416 sema = BXR2(sbc, IspVirt2Off(isp, BIU_SEMA));
417 isp_prt(isp, ISP_LOGDEBUG3, "ISR 0x%x SEMA 0x%x", isr, sema);
418 isr &= INT_PENDING_MASK(isp);
419 sema &= BIU_SEMA_LOCK;
420 if (isr == 0 && sema == 0) {
421 return (0);
422 }
423 *isrp = isr;
424 if ((*semap = sema) != 0) {
425 *mbp = BXR2(sbc, IspVirt2Off(isp, OUTMAILBOX0));
426 }
427 return (1);
428}
429
430static uint32_t
431isp_sbus_rd_reg(ispsoftc_t *isp, int regoff)
432{
433 uint16_t rval;
434 struct isp_sbussoftc *sbs = (struct isp_sbussoftc *) isp;
435 int offset = sbs->sbus_poff[(regoff & _BLK_REG_MASK) >> _BLK_REG_SHFT];
436 offset += (regoff & 0xff);
437 rval = bus_space_read_2(sbs->sbus_st, sbs->sbus_sh, offset);
438 isp_prt(isp, ISP_LOGDEBUG3,
439 "isp_sbus_rd_reg(off %x) = %x", regoff, rval);
440 return (rval);
441}
442
443static void
444isp_sbus_wr_reg(ispsoftc_t *isp, int regoff, uint32_t val)
445{
446 struct isp_sbussoftc *sbs = (struct isp_sbussoftc *) isp;
447 int offset = sbs->sbus_poff[(regoff & _BLK_REG_MASK) >> _BLK_REG_SHFT];
448 offset += (regoff & 0xff);
449 isp_prt(isp, ISP_LOGDEBUG3,
450 "isp_sbus_wr_reg(off %x) = %x", regoff, val);
451 bus_space_write_2(sbs->sbus_st, sbs->sbus_sh, offset, val);
452}
453
454struct imush {
455 ispsoftc_t *isp;
456 int error;
457};
458
459static void imc(void *, bus_dma_segment_t *, int, int);
460
461static void
462imc(void *arg, bus_dma_segment_t *segs, int nseg, int error)
463{
464 struct imush *imushp = (struct imush *) arg;
465 if (error) {
466 imushp->error = error;
467 } else {
468 ispsoftc_t *isp =imushp->isp;
469 bus_addr_t addr = segs->ds_addr;
470
471 isp->isp_rquest_dma = addr;
472 addr += ISP_QUEUE_SIZE(RQUEST_QUEUE_LEN(isp));
473 isp->isp_result_dma = addr;
474 }
475}
476
| 33
34#include <sys/param.h>
35#include <sys/systm.h>
36#if __FreeBSD_version >= 700000
37#include <sys/linker.h>
38#include <sys/firmware.h>
39#endif
40#include <sys/bus.h>
41#include <sys/kernel.h>
42#include <sys/module.h>
43#include <sys/resource.h>
44
45#include <dev/ofw/ofw_bus.h>
46
47#include <machine/bus.h>
48#include <machine/resource.h>
49#include <sys/rman.h>
50#include <sparc64/sbus/sbusvar.h>
51
52#include <dev/isp/isp_freebsd.h>
53
54static uint32_t
55isp_sbus_rd_reg(ispsoftc_t *, int);
56static void
57isp_sbus_wr_reg(ispsoftc_t *, int, uint32_t);
58static int
59isp_sbus_rd_isr(ispsoftc_t *, uint32_t *, uint16_t *, uint16_t *);
60static int isp_sbus_mbxdma(ispsoftc_t *);
61static int
62isp_sbus_dmasetup(ispsoftc_t *, XS_T *, ispreq_t *, uint32_t *, uint32_t);
63static void
64isp_sbus_dmateardown(ispsoftc_t *, XS_T *, uint32_t);
65
66static void isp_sbus_reset0(ispsoftc_t *);
67static void isp_sbus_reset1(ispsoftc_t *);
68static void isp_sbus_dumpregs(ispsoftc_t *, const char *);
69
70static struct ispmdvec mdvec = {
71 isp_sbus_rd_isr,
72 isp_sbus_rd_reg,
73 isp_sbus_wr_reg,
74 isp_sbus_mbxdma,
75 isp_sbus_dmasetup,
76 isp_sbus_dmateardown,
77 isp_sbus_reset0,
78 isp_sbus_reset1,
79 isp_sbus_dumpregs,
80 NULL,
81 BIU_BURST_ENABLE|BIU_PCI_CONF1_FIFO_64
82};
83
84static int isp_sbus_probe (device_t);
85static int isp_sbus_attach (device_t);
86
87
88struct isp_sbussoftc {
89 ispsoftc_t sbus_isp;
90 device_t sbus_dev;
91 struct resource * sbus_reg;
92 bus_space_tag_t sbus_st;
93 bus_space_handle_t sbus_sh;
94 void * ih;
95 int16_t sbus_poff[_NREG_BLKS];
96 bus_dma_tag_t dmat;
97 bus_dmamap_t *dmaps;
98 sdparam sbus_param;
99 struct ispmdvec sbus_mdvec;
100 struct resource * sbus_ires;
101};
102
103
104static device_method_t isp_sbus_methods[] = {
105 /* Device interface */
106 DEVMETHOD(device_probe, isp_sbus_probe),
107 DEVMETHOD(device_attach, isp_sbus_attach),
108 { 0, 0 }
109};
110static void isp_sbus_intr(void *);
111
112static driver_t isp_sbus_driver = {
113 "isp", isp_sbus_methods, sizeof (struct isp_sbussoftc)
114};
115static devclass_t isp_devclass;
116DRIVER_MODULE(isp, sbus, isp_sbus_driver, isp_devclass, 0, 0);
117#if __FreeBSD_version < 700000
118extern ispfwfunc *isp_get_firmware_p;
119#endif
120
121static int
122isp_sbus_probe(device_t dev)
123{
124 int found = 0;
125 const char *name = ofw_bus_get_name(dev);
126 if (strcmp(name, "SUNW,isp") == 0 ||
127 strcmp(name, "QLGC,isp") == 0 ||
128 strcmp(name, "ptisp") == 0 ||
129 strcmp(name, "PTI,ptisp") == 0) {
130 found++;
131 }
132 if (!found)
133 return (ENXIO);
134
135 if (isp_announced == 0 && bootverbose) {
136 printf("Qlogic ISP Driver, FreeBSD Version %d.%d, "
137 "Core Version %d.%d\n",
138 ISP_PLATFORM_VERSION_MAJOR, ISP_PLATFORM_VERSION_MINOR,
139 ISP_CORE_VERSION_MAJOR, ISP_CORE_VERSION_MINOR);
140 isp_announced++;
141 }
142 return (0);
143}
144
145static int
146isp_sbus_attach(device_t dev)
147{
148 struct resource *regs;
149 int tval, iqd, isp_debug, role, rid, ispburst;
150 struct isp_sbussoftc *sbs;
151 ispsoftc_t *isp = NULL;
152 int locksetup = 0;
153 int ints_setup = 0;
154
155 /*
156 * Figure out if we're supposed to skip this one.
157 * If we are, we actually go to ISP_ROLE_NONE.
158 */
159
160 tval = 0;
161 if (resource_int_value(device_get_name(dev), device_get_unit(dev),
162 "disable", &tval) == 0 && tval) {
163 device_printf(dev, "device is disabled\n");
164 /* but return 0 so the !$)$)*!$*) unit isn't reused */
165 return (0);
166 }
167
168 role = 0;
169 if (resource_int_value(device_get_name(dev), device_get_unit(dev),
170 "role", &role) == 0 &&
171 ((role & ~(ISP_ROLE_INITIATOR|ISP_ROLE_TARGET)) == 0)) {
172 device_printf(dev, "setting role to 0x%x\n", role);
173 } else {
174#ifdef ISP_TARGET_MODE
175 role = ISP_ROLE_INITIATOR|ISP_ROLE_TARGET;
176#else
177 role = ISP_DEFAULT_ROLES;
178#endif
179 }
180
181 sbs = malloc(sizeof (*sbs), M_DEVBUF, M_NOWAIT | M_ZERO);
182 if (sbs == NULL) {
183 device_printf(dev, "cannot allocate softc\n");
184 return (ENOMEM);
185 }
186
187 regs = NULL;
188 iqd = 0;
189 rid = 0;
190 regs = bus_alloc_resource_any(dev, SYS_RES_MEMORY, &rid, RF_ACTIVE);
191 if (regs == 0) {
192 device_printf(dev, "unable to map registers\n");
193 goto bad;
194 }
195 sbs->sbus_dev = dev;
196 sbs->sbus_reg = regs;
197 sbs->sbus_st = rman_get_bustag(regs);
198 sbs->sbus_sh = rman_get_bushandle(regs);
199 sbs->sbus_mdvec = mdvec;
200
201 sbs->sbus_poff[BIU_BLOCK >> _BLK_REG_SHFT] = BIU_REGS_OFF;
202 sbs->sbus_poff[MBOX_BLOCK >> _BLK_REG_SHFT] = SBUS_MBOX_REGS_OFF;
203 sbs->sbus_poff[SXP_BLOCK >> _BLK_REG_SHFT] = SBUS_SXP_REGS_OFF;
204 sbs->sbus_poff[RISC_BLOCK >> _BLK_REG_SHFT] = SBUS_RISC_REGS_OFF;
205 sbs->sbus_poff[DMA_BLOCK >> _BLK_REG_SHFT] = DMA_REGS_OFF;
206 isp = &sbs->sbus_isp;
207 isp->isp_mdvec = &sbs->sbus_mdvec;
208 isp->isp_bustype = ISP_BT_SBUS;
209 isp->isp_type = ISP_HA_SCSI_UNKNOWN;
210 isp->isp_param = &sbs->sbus_param;
211 isp->isp_revision = 0; /* XXX */
212 isp->isp_role = role;
213 isp->isp_dev = dev;
214
215 /*
216 * Get the clock frequency and convert it from HZ to MHz,
217 * rounding up. This defaults to 25MHz if there isn't a
218 * device specific one in the OFW device tree.
219 */
220 sbs->sbus_mdvec.dv_clock = (sbus_get_clockfreq(dev) + 500000)/1000000;
221
222 /*
223 * Now figure out what the proper burst sizes, etc., to use.
224 * Unfortunately, there is no ddi_dma_burstsizes here which
225 * walks up the tree finding the limiting burst size node (if
226 * any). We just use what's here for isp.
227 */
228 ispburst = sbus_get_burstsz(dev);
229 if (ispburst == 0) {
230 ispburst = SBUS_BURST_32 - 1;
231 }
232 sbs->sbus_mdvec.dv_conf1 = 0;
233 if (ispburst & (1 << 5)) {
234 sbs->sbus_mdvec.dv_conf1 = BIU_SBUS_CONF1_FIFO_32;
235 } else if (ispburst & (1 << 4)) {
236 sbs->sbus_mdvec.dv_conf1 = BIU_SBUS_CONF1_FIFO_16;
237 } else if (ispburst & (1 << 3)) {
238 sbs->sbus_mdvec.dv_conf1 =
239 BIU_SBUS_CONF1_BURST8 | BIU_SBUS_CONF1_FIFO_8;
240 }
241 if (sbs->sbus_mdvec.dv_conf1) {
242 sbs->sbus_mdvec.dv_conf1 |= BIU_BURST_ENABLE;
243 }
244
245 /*
246 * We don't trust NVRAM on SBus cards
247 */
248 isp->isp_confopts |= ISP_CFG_NONVRAM;
249
250 /*
251 * Mark things if we're a PTI SBus adapter.
252 */
253 if (strcmp("PTI,ptisp", ofw_bus_get_name(dev)) == 0 ||
254 strcmp("ptisp", ofw_bus_get_name(dev)) == 0) {
255 SDPARAM(isp)->isp_ptisp = 1;
256 }
257
258
259#if __FreeBSD_version >= 700000
260 isp->isp_osinfo.fw = firmware_get("isp_1000");
261 if (isp->isp_osinfo.fw) {
262 union {
263 const void *cp;
264 uint16_t *sp;
265 } stupid;
266 stupid.cp = isp->isp_osinfo.fw->data;
267 isp->isp_mdvec->dv_ispfw = stupid.sp;
268 }
269#else
270 /*
271 * Try and find firmware for this device.
272 */
273 if (isp_get_firmware_p) {
274 (*isp_get_firmware_p)(0, 0, 0x1000, &sbs->sbus_mdvec.dv_ispfw);
275 }
276#endif
277
278 tval = 0;
279 if (resource_int_value(device_get_name(dev), device_get_unit(dev),
280 "fwload_disable", &tval) == 0 && tval != 0) {
281 isp->isp_confopts |= ISP_CFG_NORELOAD;
282 }
283
284 isp->isp_osinfo.default_id = -1;
285 if (resource_int_value(device_get_name(dev), device_get_unit(dev),
286 "iid", &tval) == 0) {
287 isp->isp_osinfo.default_id = tval;
288 isp->isp_confopts |= ISP_CFG_OWNLOOPID;
289 }
290 if (isp->isp_osinfo.default_id == -1) {
291 /*
292 * XXX: should be a way to get properties w/o having
293 * XXX: to call OF_xxx functions
294 */
295 isp->isp_osinfo.default_id = 7;
296 }
297
298 isp_debug = 0;
299 (void) resource_int_value(device_get_name(dev), device_get_unit(dev),
300 "debug", &isp_debug);
301
302 /* Make sure the lock is set up. */
303 mtx_init(&isp->isp_osinfo.lock, "isp", NULL, MTX_DEF);
304 locksetup++;
305
306 iqd = 0;
307 sbs->sbus_ires = bus_alloc_resource_any(dev, SYS_RES_IRQ, &iqd,
308 RF_ACTIVE | RF_SHAREABLE);
309 if (sbs->sbus_ires == NULL) {
310 device_printf(dev, "could not allocate interrupt\n");
311 goto bad;
312 }
313
314 if (bus_setup_intr(dev, sbs->sbus_ires, ISP_IFLAGS,
315 isp_sbus_intr, isp, &sbs->ih)) {
316 device_printf(dev, "could not setup interrupt\n");
317 goto bad;
318 }
319 ints_setup++;
320
321 /*
322 * Set up logging levels.
323 */
324 if (isp_debug) {
325 isp->isp_dblev = isp_debug;
326 } else {
327 isp->isp_dblev = ISP_LOGWARN|ISP_LOGERR;
328 }
329 if (bootverbose) {
330 isp->isp_dblev |= ISP_LOGCONFIG|ISP_LOGINFO;
331 }
332
333 /*
334 * Make sure we're in reset state.
335 */
336 ISP_LOCK(isp);
337 isp_reset(isp);
338 if (isp->isp_state != ISP_RESETSTATE) {
339 isp_uninit(isp);
340 ISP_UNLOCK(isp);
341 goto bad;
342 }
343 isp_init(isp);
344 if (isp->isp_role != ISP_ROLE_NONE && isp->isp_state != ISP_INITSTATE) {
345 isp_uninit(isp);
346 ISP_UNLOCK(isp);
347 goto bad;
348 }
349 isp_attach(isp);
350 if (isp->isp_role != ISP_ROLE_NONE && isp->isp_state != ISP_RUNSTATE) {
351 isp_uninit(isp);
352 ISP_UNLOCK(isp);
353 goto bad;
354 }
355 ISP_UNLOCK(isp);
356 return (0);
357
358bad:
359
360 if (sbs && ints_setup) {
361 (void) bus_teardown_intr(dev, sbs->sbus_ires, sbs->ih);
362 }
363
364 if (sbs && sbs->sbus_ires) {
365 bus_release_resource(dev, SYS_RES_IRQ, iqd, sbs->sbus_ires);
366 }
367
368 if (locksetup && isp) {
369 mtx_destroy(&isp->isp_osinfo.lock);
370 }
371
372 if (regs) {
373 (void) bus_release_resource(dev, 0, 0, regs);
374 }
375
376 if (sbs) {
377 if (sbs->sbus_isp.isp_param) {
378 free(sbs->sbus_isp.isp_param, M_DEVBUF);
379 }
380 free(sbs, M_DEVBUF);
381 }
382 return (ENXIO);
383}
384
385static void
386isp_sbus_intr(void *arg)
387{
388 ispsoftc_t *isp = arg;
389 uint32_t isr;
390 uint16_t sema, mbox;
391
392 ISP_LOCK(isp);
393 isp->isp_intcnt++;
394 if (ISP_READ_ISR(isp, &isr, &sema, &mbox) == 0) {
395 isp->isp_intbogus++;
396 } else {
397 isp_intr(isp, isr, sema, mbox);
398 }
399 ISP_UNLOCK(isp);
400}
401
402#define IspVirt2Off(a, x) \
403 (((struct isp_sbussoftc *)a)->sbus_poff[((x) & _BLK_REG_MASK) >> \
404 _BLK_REG_SHFT] + ((x) & 0xff))
405
406#define BXR2(sbc, off) \
407 bus_space_read_2(sbc->sbus_st, sbc->sbus_sh, off)
408
409static int
410isp_sbus_rd_isr(ispsoftc_t *isp, uint32_t *isrp, uint16_t *semap, uint16_t *mbp)
411{
412 struct isp_sbussoftc *sbc = (struct isp_sbussoftc *) isp;
413 uint16_t isr, sema;
414
415 isr = BXR2(sbc, IspVirt2Off(isp, BIU_ISR));
416 sema = BXR2(sbc, IspVirt2Off(isp, BIU_SEMA));
417 isp_prt(isp, ISP_LOGDEBUG3, "ISR 0x%x SEMA 0x%x", isr, sema);
418 isr &= INT_PENDING_MASK(isp);
419 sema &= BIU_SEMA_LOCK;
420 if (isr == 0 && sema == 0) {
421 return (0);
422 }
423 *isrp = isr;
424 if ((*semap = sema) != 0) {
425 *mbp = BXR2(sbc, IspVirt2Off(isp, OUTMAILBOX0));
426 }
427 return (1);
428}
429
430static uint32_t
431isp_sbus_rd_reg(ispsoftc_t *isp, int regoff)
432{
433 uint16_t rval;
434 struct isp_sbussoftc *sbs = (struct isp_sbussoftc *) isp;
435 int offset = sbs->sbus_poff[(regoff & _BLK_REG_MASK) >> _BLK_REG_SHFT];
436 offset += (regoff & 0xff);
437 rval = bus_space_read_2(sbs->sbus_st, sbs->sbus_sh, offset);
438 isp_prt(isp, ISP_LOGDEBUG3,
439 "isp_sbus_rd_reg(off %x) = %x", regoff, rval);
440 return (rval);
441}
442
443static void
444isp_sbus_wr_reg(ispsoftc_t *isp, int regoff, uint32_t val)
445{
446 struct isp_sbussoftc *sbs = (struct isp_sbussoftc *) isp;
447 int offset = sbs->sbus_poff[(regoff & _BLK_REG_MASK) >> _BLK_REG_SHFT];
448 offset += (regoff & 0xff);
449 isp_prt(isp, ISP_LOGDEBUG3,
450 "isp_sbus_wr_reg(off %x) = %x", regoff, val);
451 bus_space_write_2(sbs->sbus_st, sbs->sbus_sh, offset, val);
452}
453
454struct imush {
455 ispsoftc_t *isp;
456 int error;
457};
458
459static void imc(void *, bus_dma_segment_t *, int, int);
460
461static void
462imc(void *arg, bus_dma_segment_t *segs, int nseg, int error)
463{
464 struct imush *imushp = (struct imush *) arg;
465 if (error) {
466 imushp->error = error;
467 } else {
468 ispsoftc_t *isp =imushp->isp;
469 bus_addr_t addr = segs->ds_addr;
470
471 isp->isp_rquest_dma = addr;
472 addr += ISP_QUEUE_SIZE(RQUEST_QUEUE_LEN(isp));
473 isp->isp_result_dma = addr;
474 }
475}
476
|
477/*
478 * Should be BUS_SPACE_MAXSIZE, but MAXPHYS is larger than BUS_SPACE_MAXSIZE
479 */
480#define ISP_NSEGS ((MAXPHYS / PAGE_SIZE) + 1)
481
482#if __FreeBSD_version < 700020
483#define BUS_DMA_ROOTARG NULL
484#define isp_dma_tag_create(a, b, c, d, e, f, g, h, i, j, k, z) \
485 bus_dma_tag_create(a, b, c, d, e, f, g, h, i, j, k, \
486 busdma_lock_mutex, &Giant, z)
487#else
488#define BUS_DMA_ROOTARG bus_get_dma_tag(sbs->sbus_dev)
489#define isp_dma_tag_create(a, b, c, d, e, f, g, h, i, j, k, z) \
490 bus_dma_tag_create(a, b, c, d, e, f, g, h, i, j, k, \
491 busdma_lock_mutex, &Giant, z)
492#endif
493
| |
494static int
495isp_sbus_mbxdma(ispsoftc_t *isp)
496{
497 struct isp_sbussoftc *sbs = (struct isp_sbussoftc *)isp;
498 caddr_t base;
499 uint32_t len;
500 int i, error, ns;
501 struct imush im;
502
503 /*
504 * Already been here? If so, leave...
505 */
506 if (isp->isp_rquest) {
507 return (0);
508 }
509
510 ISP_UNLOCK(isp);
511
| 477static int
478isp_sbus_mbxdma(ispsoftc_t *isp)
479{
480 struct isp_sbussoftc *sbs = (struct isp_sbussoftc *)isp;
481 caddr_t base;
482 uint32_t len;
483 int i, error, ns;
484 struct imush im;
485
486 /*
487 * Already been here? If so, leave...
488 */
489 if (isp->isp_rquest) {
490 return (0);
491 }
492
493 ISP_UNLOCK(isp);
494
|
512 if (isp_dma_tag_create(BUS_DMA_ROOTARG, 1, BUS_SPACE_MAXADDR_24BIT+1,
513 BUS_SPACE_MAXADDR_32BIT, BUS_SPACE_MAXADDR_32BIT,
514 NULL, NULL, BUS_SPACE_MAXSIZE_32BIT, ISP_NSEGS,
515 BUS_SPACE_MAXADDR_24BIT, 0,
516 &sbs->dmat)) {
| 495 if (isp_dma_tag_create(BUS_DMA_ROOTARG(sbs->sbus_dev), 1,
496 BUS_SPACE_MAXADDR_24BIT+1, BUS_SPACE_MAXADDR_32BIT,
497 BUS_SPACE_MAXADDR_32BIT, NULL, NULL, BUS_SPACE_MAXSIZE_32BIT,
498 ISP_NSEGS, BUS_SPACE_MAXADDR_24BIT, 0, &sbs->dmat)) {
|
517 isp_prt(isp, ISP_LOGERR, "could not create master dma tag");
518 ISP_LOCK(isp);
519 return(1);
520 }
521
522 len = sizeof (XS_T **) * isp->isp_maxcmds;
523 isp->isp_xflist = (XS_T **) malloc(len, M_DEVBUF, M_WAITOK | M_ZERO);
524 if (isp->isp_xflist == NULL) {
525 isp_prt(isp, ISP_LOGERR, "cannot alloc xflist array");
526 ISP_LOCK(isp);
527 return (1);
528 }
529 len = sizeof (bus_dmamap_t) * isp->isp_maxcmds;
530 sbs->dmaps = (bus_dmamap_t *) malloc(len, M_DEVBUF, M_WAITOK);
531 if (sbs->dmaps == NULL) {
532 isp_prt(isp, ISP_LOGERR, "can't alloc dma map storage");
533 free(isp->isp_xflist, M_DEVBUF);
534 ISP_LOCK(isp);
535 return (1);
536 }
537
538 /*
539 * Allocate and map the request, result queues, plus FC scratch area.
540 */
541 len = ISP_QUEUE_SIZE(RQUEST_QUEUE_LEN(isp));
542 len += ISP_QUEUE_SIZE(RESULT_QUEUE_LEN(isp));
543
544 ns = (len / PAGE_SIZE) + 1;
545 if (bus_dma_tag_create(sbs->dmat, QENTRY_LEN, BUS_SPACE_MAXADDR_24BIT+1,
546 BUS_SPACE_MAXADDR_32BIT, BUS_SPACE_MAXADDR_32BIT, NULL, NULL,
547 len, ns, BUS_SPACE_MAXADDR_24BIT, 0, busdma_lock_mutex, &Giant,
548 &isp->isp_cdmat)) {
549 isp_prt(isp, ISP_LOGERR,
550 "cannot create a dma tag for control spaces");
551 free(sbs->dmaps, M_DEVBUF);
552 free(isp->isp_xflist, M_DEVBUF);
553 ISP_LOCK(isp);
554 return (1);
555 }
556
557 if (bus_dmamem_alloc(isp->isp_cdmat, (void **)&base, BUS_DMA_NOWAIT,
558 &isp->isp_cdmap) != 0) {
559 isp_prt(isp, ISP_LOGERR,
560 "cannot allocate %d bytes of CCB memory", len);
561 bus_dma_tag_destroy(isp->isp_cdmat);
562 free(isp->isp_xflist, M_DEVBUF);
563 free(sbs->dmaps, M_DEVBUF);
564 ISP_LOCK(isp);
565 return (1);
566 }
567
568 for (i = 0; i < isp->isp_maxcmds; i++) {
569 error = bus_dmamap_create(sbs->dmat, 0, &sbs->dmaps[i]);
570 if (error) {
571 isp_prt(isp, ISP_LOGERR,
572 "error %d creating per-cmd DMA maps", error);
573 while (--i >= 0) {
574 bus_dmamap_destroy(sbs->dmat, sbs->dmaps[i]);
575 }
576 goto bad;
577 }
578 }
579
580 im.isp = isp;
581 im.error = 0;
582 bus_dmamap_load(isp->isp_cdmat, isp->isp_cdmap, base, len, imc, &im, 0);
583 if (im.error) {
584 isp_prt(isp, ISP_LOGERR,
585 "error %d loading dma map for control areas", im.error);
586 goto bad;
587 }
588
589 isp->isp_rquest = base;
590 base += ISP_QUEUE_SIZE(RQUEST_QUEUE_LEN(isp));
591 ISP_LOCK(isp);
592 isp->isp_result = base;
593 return (0);
594
595bad:
596 bus_dmamem_free(isp->isp_cdmat, base, isp->isp_cdmap);
597 bus_dma_tag_destroy(isp->isp_cdmat);
598 free(isp->isp_xflist, M_DEVBUF);
599 free(sbs->dmaps, M_DEVBUF);
600 ISP_LOCK(isp);
601 isp->isp_rquest = NULL;
602 return (1);
603}
604
605typedef struct {
606 ispsoftc_t *isp;
607 void *cmd_token;
608 void *rq;
609 uint32_t *nxtip;
610 uint32_t optr;
611 int error;
612} mush_t;
613
614#define MUSHERR_NOQENTRIES -2
615
616
617static void dma2(void *, bus_dma_segment_t *, int, int);
618
619static void
620dma2(void *arg, bus_dma_segment_t *dm_segs, int nseg, int error)
621{
622 mush_t *mp;
623 ispsoftc_t *isp;
624 struct ccb_scsiio *csio;
625 struct isp_sbussoftc *sbs;
626 bus_dmamap_t *dp;
627 bus_dma_segment_t *eseg;
628 ispreq_t *rq;
629 int seglim, datalen;
630 uint16_t nxti;
631
632 mp = (mush_t *) arg;
633 if (error) {
634 mp->error = error;
635 return;
636 }
637
638 if (nseg < 1) {
639 isp_prt(mp->isp, ISP_LOGERR, "bad segment count (%d)", nseg);
640 mp->error = EFAULT;
641 return;
642 }
643 csio = mp->cmd_token;
644 isp = mp->isp;
645 rq = mp->rq;
646 sbs = (struct isp_sbussoftc *)mp->isp;
647 dp = &sbs->dmaps[isp_handle_index(rq->req_handle)];
648 nxti = *mp->nxtip;
649
650 if ((csio->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_IN) {
651 bus_dmamap_sync(sbs->dmat, *dp, BUS_DMASYNC_PREREAD);
652 } else {
653 bus_dmamap_sync(sbs->dmat, *dp, BUS_DMASYNC_PREWRITE);
654 }
655
656 datalen = XS_XFRLEN(csio);
657
658 /*
659 * We're passed an initial partially filled in entry that
660 * has most fields filled in except for data transfer
661 * related values.
662 *
663 * Our job is to fill in the initial request queue entry and
664 * then to start allocating and filling in continuation entries
665 * until we've covered the entire transfer.
666 */
667
668 if (csio->cdb_len > 12) {
669 seglim = 0;
670 } else {
671 seglim = ISP_RQDSEG;
672 }
673 if ((csio->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_IN) {
674 rq->req_flags |= REQFLAG_DATA_IN;
675 } else {
676 rq->req_flags |= REQFLAG_DATA_OUT;
677 }
678
679 eseg = dm_segs + nseg;
680
681 while (datalen != 0 && rq->req_seg_count < seglim && dm_segs != eseg) {
682 rq->req_dataseg[rq->req_seg_count].ds_base = dm_segs->ds_addr;
683 rq->req_dataseg[rq->req_seg_count].ds_count = dm_segs->ds_len;
684 datalen -= dm_segs->ds_len;
685 rq->req_seg_count++;
686 dm_segs++;
687 }
688
689 while (datalen > 0 && dm_segs != eseg) {
690 uint16_t onxti;
691 ispcontreq_t local, *crq = &local, *cqe;
692
693 cqe = (ispcontreq_t *) ISP_QUEUE_ENTRY(isp->isp_rquest, nxti);
694 onxti = nxti;
695 nxti = ISP_NXT_QENTRY(onxti, RQUEST_QUEUE_LEN(isp));
696 if (nxti == mp->optr) {
697 isp_prt(isp, ISP_LOGDEBUG0, "Request Queue Overflow++");
698 mp->error = MUSHERR_NOQENTRIES;
699 return;
700 }
701 rq->req_header.rqs_entry_count++;
702 MEMZERO((void *)crq, sizeof (*crq));
703 crq->req_header.rqs_entry_count = 1;
704 crq->req_header.rqs_entry_type = RQSTYPE_DATASEG;
705
706 seglim = 0;
707 while (datalen > 0 && seglim < ISP_CDSEG && dm_segs != eseg) {
708 crq->req_dataseg[seglim].ds_base =
709 dm_segs->ds_addr;
710 crq->req_dataseg[seglim].ds_count =
711 dm_segs->ds_len;
712 rq->req_seg_count++;
713 dm_segs++;
714 seglim++;
715 datalen -= dm_segs->ds_len;
716 }
717 isp_put_cont_req(isp, crq, cqe);
718 MEMORYBARRIER(isp, SYNC_REQUEST, onxti, QENTRY_LEN);
719 }
720 *mp->nxtip = nxti;
721}
722
723static int
724isp_sbus_dmasetup(ispsoftc_t *isp, struct ccb_scsiio *csio, ispreq_t *rq,
725 uint32_t *nxtip, uint32_t optr)
726{
727 struct isp_sbussoftc *sbs = (struct isp_sbussoftc *)isp;
728 ispreq_t *qep;
729 bus_dmamap_t *dp = NULL;
730 mush_t mush, *mp;
731 void (*eptr)(void *, bus_dma_segment_t *, int, int);
732
733 qep = (ispreq_t *) ISP_QUEUE_ENTRY(isp->isp_rquest, isp->isp_reqidx);
734 eptr = dma2;
735
736
737 if ((csio->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_NONE ||
738 (csio->dxfer_len == 0)) {
739 rq->req_seg_count = 1;
740 goto mbxsync;
741 }
742
743 /*
744 * Do a virtual grapevine step to collect info for
745 * the callback dma allocation that we have to use...
746 */
747 mp = &mush;
748 mp->isp = isp;
749 mp->cmd_token = csio;
750 mp->rq = rq;
751 mp->nxtip = nxtip;
752 mp->optr = optr;
753 mp->error = 0;
754
755 if ((csio->ccb_h.flags & CAM_SCATTER_VALID) == 0) {
756 if ((csio->ccb_h.flags & CAM_DATA_PHYS) == 0) {
757 int error, s;
758 dp = &sbs->dmaps[isp_handle_index(rq->req_handle)];
759 s = splsoftvm();
760 error = bus_dmamap_load(sbs->dmat, *dp,
761 csio->data_ptr, csio->dxfer_len, eptr, mp, 0);
762 if (error == EINPROGRESS) {
763 bus_dmamap_unload(sbs->dmat, *dp);
764 mp->error = EINVAL;
765 isp_prt(isp, ISP_LOGERR,
766 "deferred dma allocation not supported");
767 } else if (error && mp->error == 0) {
768#ifdef DIAGNOSTIC
769 isp_prt(isp, ISP_LOGERR,
770 "error %d in dma mapping code", error);
771#endif
772 mp->error = error;
773 }
774 splx(s);
775 } else {
776 /* Pointer to physical buffer */
777 struct bus_dma_segment seg;
778 seg.ds_addr = (bus_addr_t)csio->data_ptr;
779 seg.ds_len = csio->dxfer_len;
780 (*eptr)(mp, &seg, 1, 0);
781 }
782 } else {
783 struct bus_dma_segment *segs;
784
785 if ((csio->ccb_h.flags & CAM_DATA_PHYS) != 0) {
786 isp_prt(isp, ISP_LOGERR,
787 "Physical segment pointers unsupported");
788 mp->error = EINVAL;
789 } else if ((csio->ccb_h.flags & CAM_SG_LIST_PHYS) == 0) {
790 isp_prt(isp, ISP_LOGERR,
791 "Virtual segment addresses unsupported");
792 mp->error = EINVAL;
793 } else {
794 /* Just use the segments provided */
795 segs = (struct bus_dma_segment *) csio->data_ptr;
796 (*eptr)(mp, segs, csio->sglist_cnt, 0);
797 }
798 }
799 if (mp->error) {
800 int retval = CMD_COMPLETE;
801 if (mp->error == MUSHERR_NOQENTRIES) {
802 retval = CMD_EAGAIN;
803 } else if (mp->error == EFBIG) {
804 XS_SETERR(csio, CAM_REQ_TOO_BIG);
805 } else if (mp->error == EINVAL) {
806 XS_SETERR(csio, CAM_REQ_INVALID);
807 } else {
808 XS_SETERR(csio, CAM_UNREC_HBA_ERROR);
809 }
810 return (retval);
811 }
812mbxsync:
813 if (isp->isp_dblev & ISP_LOGDEBUG1) {
814 isp_print_bytes(isp, "Request Queue Entry", QENTRY_LEN, rq);
815 }
816 switch (rq->req_header.rqs_entry_type) {
817 case RQSTYPE_REQUEST:
818 isp_put_request(isp, rq, qep);
819 break;
820 case RQSTYPE_CMDONLY:
821 isp_put_extended_request(isp, (ispextreq_t *)rq,
822 (ispextreq_t *)qep);
823 break;
824 }
825 return (CMD_QUEUED);
826}
827
828static void
829isp_sbus_dmateardown(ispsoftc_t *isp, XS_T *xs, uint32_t handle)
830{
831 struct isp_sbussoftc *sbs = (struct isp_sbussoftc *)isp;
832 bus_dmamap_t *dp = &sbs->dmaps[isp_handle_index(handle)];
833 if ((xs->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_IN) {
834 bus_dmamap_sync(sbs->dmat, *dp, BUS_DMASYNC_POSTREAD);
835 } else {
836 bus_dmamap_sync(sbs->dmat, *dp, BUS_DMASYNC_POSTWRITE);
837 }
838 bus_dmamap_unload(sbs->dmat, *dp);
839}
840
841static void
842isp_sbus_reset0(ispsoftc_t *isp)
843{
844 ISP_DISABLE_INTS(isp);
845}
846
847static void
848isp_sbus_reset1(ispsoftc_t *isp)
849{
850 ISP_ENABLE_INTS(isp);
851}
852
853static void
854isp_sbus_dumpregs(ispsoftc_t *isp, const char *msg)
855{
856 if (msg)
857 printf("%s: %s\n", device_get_nameunit(isp->isp_dev), msg);
858 else
859 printf("%s:\n", device_get_nameunit(isp->isp_dev));
860 printf(" biu_conf1=%x", ISP_READ(isp, BIU_CONF1));
861 printf(" biu_icr=%x biu_isr=%x biu_sema=%x ", ISP_READ(isp, BIU_ICR),
862 ISP_READ(isp, BIU_ISR), ISP_READ(isp, BIU_SEMA));
863 printf("risc_hccr=%x\n", ISP_READ(isp, HCCR));
864
865
866 ISP_WRITE(isp, HCCR, HCCR_CMD_PAUSE);
867 printf(" cdma_conf=%x cdma_sts=%x cdma_fifostat=%x\n",
868 ISP_READ(isp, CDMA_CONF), ISP_READ(isp, CDMA_STATUS),
869 ISP_READ(isp, CDMA_FIFO_STS));
870 printf(" ddma_conf=%x ddma_sts=%x ddma_fifostat=%x\n",
871 ISP_READ(isp, DDMA_CONF), ISP_READ(isp, DDMA_STATUS),
872 ISP_READ(isp, DDMA_FIFO_STS));
873 printf(" sxp_int=%x sxp_gross=%x sxp(scsi_ctrl)=%x\n",
874 ISP_READ(isp, SXP_INTERRUPT),
875 ISP_READ(isp, SXP_GROSS_ERR),
876 ISP_READ(isp, SXP_PINS_CTRL));
877 ISP_WRITE(isp, HCCR, HCCR_CMD_RELEASE);
878 printf(" mbox regs: %x %x %x %x %x\n",
879 ISP_READ(isp, OUTMAILBOX0), ISP_READ(isp, OUTMAILBOX1),
880 ISP_READ(isp, OUTMAILBOX2), ISP_READ(isp, OUTMAILBOX3),
881 ISP_READ(isp, OUTMAILBOX4));
882}
| 499 isp_prt(isp, ISP_LOGERR, "could not create master dma tag");
500 ISP_LOCK(isp);
501 return(1);
502 }
503
504 len = sizeof (XS_T **) * isp->isp_maxcmds;
505 isp->isp_xflist = (XS_T **) malloc(len, M_DEVBUF, M_WAITOK | M_ZERO);
506 if (isp->isp_xflist == NULL) {
507 isp_prt(isp, ISP_LOGERR, "cannot alloc xflist array");
508 ISP_LOCK(isp);
509 return (1);
510 }
511 len = sizeof (bus_dmamap_t) * isp->isp_maxcmds;
512 sbs->dmaps = (bus_dmamap_t *) malloc(len, M_DEVBUF, M_WAITOK);
513 if (sbs->dmaps == NULL) {
514 isp_prt(isp, ISP_LOGERR, "can't alloc dma map storage");
515 free(isp->isp_xflist, M_DEVBUF);
516 ISP_LOCK(isp);
517 return (1);
518 }
519
520 /*
521 * Allocate and map the request, result queues, plus FC scratch area.
522 */
523 len = ISP_QUEUE_SIZE(RQUEST_QUEUE_LEN(isp));
524 len += ISP_QUEUE_SIZE(RESULT_QUEUE_LEN(isp));
525
526 ns = (len / PAGE_SIZE) + 1;
527 if (bus_dma_tag_create(sbs->dmat, QENTRY_LEN, BUS_SPACE_MAXADDR_24BIT+1,
528 BUS_SPACE_MAXADDR_32BIT, BUS_SPACE_MAXADDR_32BIT, NULL, NULL,
529 len, ns, BUS_SPACE_MAXADDR_24BIT, 0, busdma_lock_mutex, &Giant,
530 &isp->isp_cdmat)) {
531 isp_prt(isp, ISP_LOGERR,
532 "cannot create a dma tag for control spaces");
533 free(sbs->dmaps, M_DEVBUF);
534 free(isp->isp_xflist, M_DEVBUF);
535 ISP_LOCK(isp);
536 return (1);
537 }
538
539 if (bus_dmamem_alloc(isp->isp_cdmat, (void **)&base, BUS_DMA_NOWAIT,
540 &isp->isp_cdmap) != 0) {
541 isp_prt(isp, ISP_LOGERR,
542 "cannot allocate %d bytes of CCB memory", len);
543 bus_dma_tag_destroy(isp->isp_cdmat);
544 free(isp->isp_xflist, M_DEVBUF);
545 free(sbs->dmaps, M_DEVBUF);
546 ISP_LOCK(isp);
547 return (1);
548 }
549
550 for (i = 0; i < isp->isp_maxcmds; i++) {
551 error = bus_dmamap_create(sbs->dmat, 0, &sbs->dmaps[i]);
552 if (error) {
553 isp_prt(isp, ISP_LOGERR,
554 "error %d creating per-cmd DMA maps", error);
555 while (--i >= 0) {
556 bus_dmamap_destroy(sbs->dmat, sbs->dmaps[i]);
557 }
558 goto bad;
559 }
560 }
561
562 im.isp = isp;
563 im.error = 0;
564 bus_dmamap_load(isp->isp_cdmat, isp->isp_cdmap, base, len, imc, &im, 0);
565 if (im.error) {
566 isp_prt(isp, ISP_LOGERR,
567 "error %d loading dma map for control areas", im.error);
568 goto bad;
569 }
570
571 isp->isp_rquest = base;
572 base += ISP_QUEUE_SIZE(RQUEST_QUEUE_LEN(isp));
573 ISP_LOCK(isp);
574 isp->isp_result = base;
575 return (0);
576
577bad:
578 bus_dmamem_free(isp->isp_cdmat, base, isp->isp_cdmap);
579 bus_dma_tag_destroy(isp->isp_cdmat);
580 free(isp->isp_xflist, M_DEVBUF);
581 free(sbs->dmaps, M_DEVBUF);
582 ISP_LOCK(isp);
583 isp->isp_rquest = NULL;
584 return (1);
585}
586
587typedef struct {
588 ispsoftc_t *isp;
589 void *cmd_token;
590 void *rq;
591 uint32_t *nxtip;
592 uint32_t optr;
593 int error;
594} mush_t;
595
596#define MUSHERR_NOQENTRIES -2
597
598
599static void dma2(void *, bus_dma_segment_t *, int, int);
600
601static void
602dma2(void *arg, bus_dma_segment_t *dm_segs, int nseg, int error)
603{
604 mush_t *mp;
605 ispsoftc_t *isp;
606 struct ccb_scsiio *csio;
607 struct isp_sbussoftc *sbs;
608 bus_dmamap_t *dp;
609 bus_dma_segment_t *eseg;
610 ispreq_t *rq;
611 int seglim, datalen;
612 uint16_t nxti;
613
614 mp = (mush_t *) arg;
615 if (error) {
616 mp->error = error;
617 return;
618 }
619
620 if (nseg < 1) {
621 isp_prt(mp->isp, ISP_LOGERR, "bad segment count (%d)", nseg);
622 mp->error = EFAULT;
623 return;
624 }
625 csio = mp->cmd_token;
626 isp = mp->isp;
627 rq = mp->rq;
628 sbs = (struct isp_sbussoftc *)mp->isp;
629 dp = &sbs->dmaps[isp_handle_index(rq->req_handle)];
630 nxti = *mp->nxtip;
631
632 if ((csio->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_IN) {
633 bus_dmamap_sync(sbs->dmat, *dp, BUS_DMASYNC_PREREAD);
634 } else {
635 bus_dmamap_sync(sbs->dmat, *dp, BUS_DMASYNC_PREWRITE);
636 }
637
638 datalen = XS_XFRLEN(csio);
639
640 /*
641 * We're passed an initial partially filled in entry that
642 * has most fields filled in except for data transfer
643 * related values.
644 *
645 * Our job is to fill in the initial request queue entry and
646 * then to start allocating and filling in continuation entries
647 * until we've covered the entire transfer.
648 */
649
650 if (csio->cdb_len > 12) {
651 seglim = 0;
652 } else {
653 seglim = ISP_RQDSEG;
654 }
655 if ((csio->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_IN) {
656 rq->req_flags |= REQFLAG_DATA_IN;
657 } else {
658 rq->req_flags |= REQFLAG_DATA_OUT;
659 }
660
661 eseg = dm_segs + nseg;
662
663 while (datalen != 0 && rq->req_seg_count < seglim && dm_segs != eseg) {
664 rq->req_dataseg[rq->req_seg_count].ds_base = dm_segs->ds_addr;
665 rq->req_dataseg[rq->req_seg_count].ds_count = dm_segs->ds_len;
666 datalen -= dm_segs->ds_len;
667 rq->req_seg_count++;
668 dm_segs++;
669 }
670
671 while (datalen > 0 && dm_segs != eseg) {
672 uint16_t onxti;
673 ispcontreq_t local, *crq = &local, *cqe;
674
675 cqe = (ispcontreq_t *) ISP_QUEUE_ENTRY(isp->isp_rquest, nxti);
676 onxti = nxti;
677 nxti = ISP_NXT_QENTRY(onxti, RQUEST_QUEUE_LEN(isp));
678 if (nxti == mp->optr) {
679 isp_prt(isp, ISP_LOGDEBUG0, "Request Queue Overflow++");
680 mp->error = MUSHERR_NOQENTRIES;
681 return;
682 }
683 rq->req_header.rqs_entry_count++;
684 MEMZERO((void *)crq, sizeof (*crq));
685 crq->req_header.rqs_entry_count = 1;
686 crq->req_header.rqs_entry_type = RQSTYPE_DATASEG;
687
688 seglim = 0;
689 while (datalen > 0 && seglim < ISP_CDSEG && dm_segs != eseg) {
690 crq->req_dataseg[seglim].ds_base =
691 dm_segs->ds_addr;
692 crq->req_dataseg[seglim].ds_count =
693 dm_segs->ds_len;
694 rq->req_seg_count++;
695 dm_segs++;
696 seglim++;
697 datalen -= dm_segs->ds_len;
698 }
699 isp_put_cont_req(isp, crq, cqe);
700 MEMORYBARRIER(isp, SYNC_REQUEST, onxti, QENTRY_LEN);
701 }
702 *mp->nxtip = nxti;
703}
704
705static int
706isp_sbus_dmasetup(ispsoftc_t *isp, struct ccb_scsiio *csio, ispreq_t *rq,
707 uint32_t *nxtip, uint32_t optr)
708{
709 struct isp_sbussoftc *sbs = (struct isp_sbussoftc *)isp;
710 ispreq_t *qep;
711 bus_dmamap_t *dp = NULL;
712 mush_t mush, *mp;
713 void (*eptr)(void *, bus_dma_segment_t *, int, int);
714
715 qep = (ispreq_t *) ISP_QUEUE_ENTRY(isp->isp_rquest, isp->isp_reqidx);
716 eptr = dma2;
717
718
719 if ((csio->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_NONE ||
720 (csio->dxfer_len == 0)) {
721 rq->req_seg_count = 1;
722 goto mbxsync;
723 }
724
725 /*
726 * Do a virtual grapevine step to collect info for
727 * the callback dma allocation that we have to use...
728 */
729 mp = &mush;
730 mp->isp = isp;
731 mp->cmd_token = csio;
732 mp->rq = rq;
733 mp->nxtip = nxtip;
734 mp->optr = optr;
735 mp->error = 0;
736
737 if ((csio->ccb_h.flags & CAM_SCATTER_VALID) == 0) {
738 if ((csio->ccb_h.flags & CAM_DATA_PHYS) == 0) {
739 int error, s;
740 dp = &sbs->dmaps[isp_handle_index(rq->req_handle)];
741 s = splsoftvm();
742 error = bus_dmamap_load(sbs->dmat, *dp,
743 csio->data_ptr, csio->dxfer_len, eptr, mp, 0);
744 if (error == EINPROGRESS) {
745 bus_dmamap_unload(sbs->dmat, *dp);
746 mp->error = EINVAL;
747 isp_prt(isp, ISP_LOGERR,
748 "deferred dma allocation not supported");
749 } else if (error && mp->error == 0) {
750#ifdef DIAGNOSTIC
751 isp_prt(isp, ISP_LOGERR,
752 "error %d in dma mapping code", error);
753#endif
754 mp->error = error;
755 }
756 splx(s);
757 } else {
758 /* Pointer to physical buffer */
759 struct bus_dma_segment seg;
760 seg.ds_addr = (bus_addr_t)csio->data_ptr;
761 seg.ds_len = csio->dxfer_len;
762 (*eptr)(mp, &seg, 1, 0);
763 }
764 } else {
765 struct bus_dma_segment *segs;
766
767 if ((csio->ccb_h.flags & CAM_DATA_PHYS) != 0) {
768 isp_prt(isp, ISP_LOGERR,
769 "Physical segment pointers unsupported");
770 mp->error = EINVAL;
771 } else if ((csio->ccb_h.flags & CAM_SG_LIST_PHYS) == 0) {
772 isp_prt(isp, ISP_LOGERR,
773 "Virtual segment addresses unsupported");
774 mp->error = EINVAL;
775 } else {
776 /* Just use the segments provided */
777 segs = (struct bus_dma_segment *) csio->data_ptr;
778 (*eptr)(mp, segs, csio->sglist_cnt, 0);
779 }
780 }
781 if (mp->error) {
782 int retval = CMD_COMPLETE;
783 if (mp->error == MUSHERR_NOQENTRIES) {
784 retval = CMD_EAGAIN;
785 } else if (mp->error == EFBIG) {
786 XS_SETERR(csio, CAM_REQ_TOO_BIG);
787 } else if (mp->error == EINVAL) {
788 XS_SETERR(csio, CAM_REQ_INVALID);
789 } else {
790 XS_SETERR(csio, CAM_UNREC_HBA_ERROR);
791 }
792 return (retval);
793 }
794mbxsync:
795 if (isp->isp_dblev & ISP_LOGDEBUG1) {
796 isp_print_bytes(isp, "Request Queue Entry", QENTRY_LEN, rq);
797 }
798 switch (rq->req_header.rqs_entry_type) {
799 case RQSTYPE_REQUEST:
800 isp_put_request(isp, rq, qep);
801 break;
802 case RQSTYPE_CMDONLY:
803 isp_put_extended_request(isp, (ispextreq_t *)rq,
804 (ispextreq_t *)qep);
805 break;
806 }
807 return (CMD_QUEUED);
808}
809
810static void
811isp_sbus_dmateardown(ispsoftc_t *isp, XS_T *xs, uint32_t handle)
812{
813 struct isp_sbussoftc *sbs = (struct isp_sbussoftc *)isp;
814 bus_dmamap_t *dp = &sbs->dmaps[isp_handle_index(handle)];
815 if ((xs->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_IN) {
816 bus_dmamap_sync(sbs->dmat, *dp, BUS_DMASYNC_POSTREAD);
817 } else {
818 bus_dmamap_sync(sbs->dmat, *dp, BUS_DMASYNC_POSTWRITE);
819 }
820 bus_dmamap_unload(sbs->dmat, *dp);
821}
822
823static void
824isp_sbus_reset0(ispsoftc_t *isp)
825{
826 ISP_DISABLE_INTS(isp);
827}
828
829static void
830isp_sbus_reset1(ispsoftc_t *isp)
831{
832 ISP_ENABLE_INTS(isp);
833}
834
835static void
836isp_sbus_dumpregs(ispsoftc_t *isp, const char *msg)
837{
838 if (msg)
839 printf("%s: %s\n", device_get_nameunit(isp->isp_dev), msg);
840 else
841 printf("%s:\n", device_get_nameunit(isp->isp_dev));
842 printf(" biu_conf1=%x", ISP_READ(isp, BIU_CONF1));
843 printf(" biu_icr=%x biu_isr=%x biu_sema=%x ", ISP_READ(isp, BIU_ICR),
844 ISP_READ(isp, BIU_ISR), ISP_READ(isp, BIU_SEMA));
845 printf("risc_hccr=%x\n", ISP_READ(isp, HCCR));
846
847
848 ISP_WRITE(isp, HCCR, HCCR_CMD_PAUSE);
849 printf(" cdma_conf=%x cdma_sts=%x cdma_fifostat=%x\n",
850 ISP_READ(isp, CDMA_CONF), ISP_READ(isp, CDMA_STATUS),
851 ISP_READ(isp, CDMA_FIFO_STS));
852 printf(" ddma_conf=%x ddma_sts=%x ddma_fifostat=%x\n",
853 ISP_READ(isp, DDMA_CONF), ISP_READ(isp, DDMA_STATUS),
854 ISP_READ(isp, DDMA_FIFO_STS));
855 printf(" sxp_int=%x sxp_gross=%x sxp(scsi_ctrl)=%x\n",
856 ISP_READ(isp, SXP_INTERRUPT),
857 ISP_READ(isp, SXP_GROSS_ERR),
858 ISP_READ(isp, SXP_PINS_CTRL));
859 ISP_WRITE(isp, HCCR, HCCR_CMD_RELEASE);
860 printf(" mbox regs: %x %x %x %x %x\n",
861 ISP_READ(isp, OUTMAILBOX0), ISP_READ(isp, OUTMAILBOX1),
862 ISP_READ(isp, OUTMAILBOX2), ISP_READ(isp, OUTMAILBOX3),
863 ISP_READ(isp, OUTMAILBOX4));
864}
|