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: stable/10/sys/dev/isp/isp_sbus.c 246713 2013-02-12 16:57:20Z kib $");
| 32__FBSDID("$FreeBSD: stable/10/sys/dev/isp/isp_sbus.c 290785 2015-11-13 19:42:55Z mav $");
|
33
34#include <sys/param.h>
35#include <sys/systm.h>
36#include <sys/linker.h>
37#include <sys/firmware.h>
38#include <sys/bus.h>
39#include <sys/kernel.h>
40#include <sys/module.h>
41#include <sys/resource.h>
42
43#include <dev/ofw/ofw_bus.h>
44#include <dev/ofw/openfirm.h>
45
46#include <machine/bus.h>
47#include <machine/ofw_machdep.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 isp_sbus_rd_reg(ispsoftc_t *, int);
55static void isp_sbus_wr_reg(ispsoftc_t *, int, uint32_t);
| 33
34#include <sys/param.h>
35#include <sys/systm.h>
36#include <sys/linker.h>
37#include <sys/firmware.h>
38#include <sys/bus.h>
39#include <sys/kernel.h>
40#include <sys/module.h>
41#include <sys/resource.h>
42
43#include <dev/ofw/ofw_bus.h>
44#include <dev/ofw/openfirm.h>
45
46#include <machine/bus.h>
47#include <machine/ofw_machdep.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 isp_sbus_rd_reg(ispsoftc_t *, int);
55static void isp_sbus_wr_reg(ispsoftc_t *, int, uint32_t);
|
56static int isp_sbus_rd_isr(ispsoftc_t *, uint32_t *, uint16_t *, uint16_t *);
| 56static int isp_sbus_rd_isr(ispsoftc_t *, uint16_t *, uint16_t *, uint16_t *);
|
57static int isp_sbus_mbxdma(ispsoftc_t *);
58static int isp_sbus_dmasetup(ispsoftc_t *, XS_T *, void *);
59
60
61static void isp_sbus_reset0(ispsoftc_t *);
62static void isp_sbus_reset1(ispsoftc_t *);
63static void isp_sbus_dumpregs(ispsoftc_t *, const char *);
64
65static struct ispmdvec mdvec = {
66 isp_sbus_rd_isr,
67 isp_sbus_rd_reg,
68 isp_sbus_wr_reg,
69 isp_sbus_mbxdma,
70 isp_sbus_dmasetup,
71 isp_common_dmateardown,
72 isp_sbus_reset0,
73 isp_sbus_reset1,
74 isp_sbus_dumpregs,
75 NULL,
76 BIU_BURST_ENABLE|BIU_PCI_CONF1_FIFO_64
77};
78
79static int isp_sbus_probe (device_t);
80static int isp_sbus_attach (device_t);
81static int isp_sbus_detach (device_t);
82
83
84#define ISP_SBD(isp) ((struct isp_sbussoftc *)isp)->sbus_dev
85struct isp_sbussoftc {
86 ispsoftc_t sbus_isp;
87 device_t sbus_dev;
88 struct resource * regs;
89 void * irq;
90 int iqd;
91 int rgd;
92 void * ih;
93 int16_t sbus_poff[_NREG_BLKS];
94 sdparam sbus_param;
95 struct isp_spi sbus_spi;
96 struct ispmdvec sbus_mdvec;
97};
98
99
100static device_method_t isp_sbus_methods[] = {
101 /* Device interface */
102 DEVMETHOD(device_probe, isp_sbus_probe),
103 DEVMETHOD(device_attach, isp_sbus_attach),
104 DEVMETHOD(device_detach, isp_sbus_detach),
105 { 0, 0 }
106};
107
108static driver_t isp_sbus_driver = {
109 "isp", isp_sbus_methods, sizeof (struct isp_sbussoftc)
110};
111static devclass_t isp_devclass;
112DRIVER_MODULE(isp, sbus, isp_sbus_driver, isp_devclass, 0, 0);
113MODULE_DEPEND(isp, cam, 1, 1, 1);
114MODULE_DEPEND(isp, firmware, 1, 1, 1);
115
116static int
117isp_sbus_probe(device_t dev)
118{
119 int found = 0;
120 const char *name = ofw_bus_get_name(dev);
121 if (strcmp(name, "SUNW,isp") == 0 ||
122 strcmp(name, "QLGC,isp") == 0 ||
123 strcmp(name, "ptisp") == 0 ||
124 strcmp(name, "PTI,ptisp") == 0) {
125 found++;
126 }
127 if (!found)
128 return (ENXIO);
129
130 if (isp_announced == 0 && bootverbose) {
131 printf("Qlogic ISP Driver, FreeBSD Version %d.%d, "
132 "Core Version %d.%d\n",
133 ISP_PLATFORM_VERSION_MAJOR, ISP_PLATFORM_VERSION_MINOR,
134 ISP_CORE_VERSION_MAJOR, ISP_CORE_VERSION_MINOR);
135 isp_announced++;
136 }
137 return (0);
138}
139
140static int
141isp_sbus_attach(device_t dev)
142{
143 int tval, isp_debug, role, ispburst, default_id;
144 struct isp_sbussoftc *sbs;
145 ispsoftc_t *isp = NULL;
146 int locksetup = 0;
147 int ints_setup = 0;
148
149 sbs = device_get_softc(dev);
150 if (sbs == NULL) {
151 device_printf(dev, "cannot get softc\n");
152 return (ENOMEM);
153 }
154
155 sbs->sbus_dev = dev;
156 sbs->sbus_mdvec = mdvec;
157
158 /*
159 * Figure out if we're supposed to skip this one.
160 * If we are, we actually go to ISP_ROLE_NONE.
161 */
162
163 tval = 0;
164 if (resource_int_value(device_get_name(dev), device_get_unit(dev),
165 "disable", &tval) == 0 && tval) {
166 device_printf(dev, "device is disabled\n");
167 /* but return 0 so the !$)$)*!$*) unit isn't reused */
168 return (0);
169 }
170
171 role = 0;
172 if (resource_int_value(device_get_name(dev), device_get_unit(dev),
173 "role", &role) == 0 &&
174 ((role & ~(ISP_ROLE_INITIATOR|ISP_ROLE_TARGET)) == 0)) {
175 device_printf(dev, "setting role to 0x%x\n", role);
176 } else {
177 role = ISP_DEFAULT_ROLES;
178 }
179
180 sbs->irq = sbs->regs = NULL;
181 sbs->rgd = sbs->iqd = 0;
182
183 sbs->regs = bus_alloc_resource_any(dev, SYS_RES_MEMORY, &sbs->rgd,
184 RF_ACTIVE);
185 if (sbs->regs == NULL) {
186 device_printf(dev, "unable to map registers\n");
187 goto bad;
188 }
189
190 sbs->sbus_poff[BIU_BLOCK >> _BLK_REG_SHFT] = BIU_REGS_OFF;
191 sbs->sbus_poff[MBOX_BLOCK >> _BLK_REG_SHFT] = SBUS_MBOX_REGS_OFF;
192 sbs->sbus_poff[SXP_BLOCK >> _BLK_REG_SHFT] = SBUS_SXP_REGS_OFF;
193 sbs->sbus_poff[RISC_BLOCK >> _BLK_REG_SHFT] = SBUS_RISC_REGS_OFF;
194 sbs->sbus_poff[DMA_BLOCK >> _BLK_REG_SHFT] = DMA_REGS_OFF;
195 isp = &sbs->sbus_isp;
196 isp->isp_bus_tag = rman_get_bustag(sbs->regs);
197 isp->isp_bus_handle = rman_get_bushandle(sbs->regs);
198 isp->isp_mdvec = &sbs->sbus_mdvec;
199 isp->isp_bustype = ISP_BT_SBUS;
200 isp->isp_type = ISP_HA_SCSI_UNKNOWN;
201 isp->isp_param = &sbs->sbus_param;
202 isp->isp_osinfo.pc.ptr = &sbs->sbus_spi;
203 isp->isp_revision = 0; /* XXX */
204 isp->isp_dev = dev;
205 isp->isp_nchan = 1;
206 ISP_SET_PC(isp, 0, def_role, role);
207
208 /*
209 * Get the clock frequency and convert it from HZ to MHz,
210 * rounding up. This defaults to 25MHz if there isn't a
211 * device specific one in the OFW device tree.
212 */
213 sbs->sbus_mdvec.dv_clock = (sbus_get_clockfreq(dev) + 500000)/1000000;
214
215 /*
216 * Now figure out what the proper burst sizes, etc., to use.
217 * Unfortunately, there is no ddi_dma_burstsizes here which
218 * walks up the tree finding the limiting burst size node (if
219 * any). We just use what's here for isp.
220 */
221 ispburst = sbus_get_burstsz(dev);
222 if (ispburst == 0) {
223 ispburst = SBUS_BURST_32 - 1;
224 }
225 sbs->sbus_mdvec.dv_conf1 = 0;
226 if (ispburst & (1 << 5)) {
227 sbs->sbus_mdvec.dv_conf1 = BIU_SBUS_CONF1_FIFO_32;
228 } else if (ispburst & (1 << 4)) {
229 sbs->sbus_mdvec.dv_conf1 = BIU_SBUS_CONF1_FIFO_16;
230 } else if (ispburst & (1 << 3)) {
231 sbs->sbus_mdvec.dv_conf1 =
232 BIU_SBUS_CONF1_BURST8 | BIU_SBUS_CONF1_FIFO_8;
233 }
234 if (sbs->sbus_mdvec.dv_conf1) {
235 sbs->sbus_mdvec.dv_conf1 |= BIU_BURST_ENABLE;
236 }
237
238 /*
239 * We don't trust NVRAM on SBus cards
240 */
241 isp->isp_confopts |= ISP_CFG_NONVRAM;
242
243 /*
244 * Mark things if we're a PTI SBus adapter.
245 */
246 if (strcmp("PTI,ptisp", ofw_bus_get_name(dev)) == 0 ||
247 strcmp("ptisp", ofw_bus_get_name(dev)) == 0) {
248 SDPARAM(isp, 0)->isp_ptisp = 1;
249 }
250
251 isp->isp_osinfo.fw = firmware_get("isp_1000");
252 if (isp->isp_osinfo.fw) {
253 union {
254 const void *cp;
255 uint16_t *sp;
256 } stupid;
257 stupid.cp = isp->isp_osinfo.fw->data;
258 isp->isp_mdvec->dv_ispfw = stupid.sp;
259 }
260
261 tval = 0;
262 if (resource_int_value(device_get_name(dev), device_get_unit(dev),
263 "fwload_disable", &tval) == 0 && tval != 0) {
264 isp->isp_confopts |= ISP_CFG_NORELOAD;
265 }
266
267 default_id = -1;
268 if (resource_int_value(device_get_name(dev), device_get_unit(dev),
269 "iid", &tval) == 0) {
270 default_id = tval;
271 isp->isp_confopts |= ISP_CFG_OWNLOOPID;
272 }
273 if (default_id == -1) {
274 default_id = OF_getscsinitid(dev);
275 }
276 ISP_SPI_PC(isp, 0)->iid = default_id;
277
278 isp_debug = 0;
279 (void) resource_int_value(device_get_name(dev), device_get_unit(dev),
280 "debug", &isp_debug);
281
282 /* Make sure the lock is set up. */
283 mtx_init(&isp->isp_osinfo.lock, "isp", NULL, MTX_DEF);
284 locksetup++;
285
286 sbs->irq = bus_alloc_resource_any(dev, SYS_RES_IRQ, &sbs->iqd,
287 RF_ACTIVE | RF_SHAREABLE);
288 if (sbs->irq == NULL) {
289 device_printf(dev, "could not allocate interrupt\n");
290 goto bad;
291 }
292
293 if (isp_setup_intr(dev, sbs->irq, ISP_IFLAGS, NULL, isp_platform_intr,
294 isp, &sbs->ih)) {
295 device_printf(dev, "could not setup interrupt\n");
296 goto bad;
297 }
298 ints_setup++;
299
300 /*
301 * Set up logging levels.
302 */
303 if (isp_debug) {
304 isp->isp_dblev = isp_debug;
305 } else {
306 isp->isp_dblev = ISP_LOGWARN|ISP_LOGERR;
307 }
308 if (bootverbose) {
309 isp->isp_dblev |= ISP_LOGCONFIG|ISP_LOGINFO;
310 }
311
312 /*
313 * Make sure we're in reset state.
314 */
315 ISP_LOCK(isp);
316 isp_reset(isp, 1);
317 if (isp->isp_state != ISP_RESETSTATE) {
318 isp_uninit(isp);
319 ISP_UNLOCK(isp);
320 goto bad;
321 }
322 isp_init(isp);
323 if (isp->isp_state == ISP_INITSTATE) {
324 isp->isp_state = ISP_RUNSTATE;
325 }
326 ISP_UNLOCK(isp);
327 if (isp_attach(isp)) {
328 ISP_LOCK(isp);
329 isp_uninit(isp);
330 ISP_UNLOCK(isp);
331 goto bad;
332 }
333 return (0);
334
335bad:
336
337 if (sbs && ints_setup) {
338 (void) bus_teardown_intr(dev, sbs->irq, sbs->ih);
339 }
340
341 if (sbs && sbs->irq) {
342 bus_release_resource(dev, SYS_RES_IRQ, sbs->iqd, sbs->irq);
343 }
344
345 if (locksetup && isp) {
346 mtx_destroy(&isp->isp_osinfo.lock);
347 }
348
349 if (sbs->regs) {
350 (void) bus_release_resource(dev, SYS_RES_MEMORY, sbs->rgd,
351 sbs->regs);
352 }
353 return (ENXIO);
354}
355
356static int
357isp_sbus_detach(device_t dev)
358{
359 struct isp_sbussoftc *sbs;
360 ispsoftc_t *isp;
361 int status;
362
363 sbs = device_get_softc(dev);
364 if (sbs == NULL) {
365 return (ENXIO);
366 }
367 isp = (ispsoftc_t *) sbs;
368 status = isp_detach(isp);
369 if (status)
370 return (status);
371 ISP_LOCK(isp);
372 isp_uninit(isp);
373 if (sbs->ih) {
374 (void) bus_teardown_intr(dev, sbs->irq, sbs->ih);
375 }
376 ISP_UNLOCK(isp);
377 mtx_destroy(&isp->isp_osinfo.lock);
378 (void) bus_release_resource(dev, SYS_RES_IRQ, sbs->iqd, sbs->irq);
379 (void) bus_release_resource(dev, SYS_RES_MEMORY, sbs->rgd, sbs->regs);
380 return (0);
381}
382
383#define IspVirt2Off(a, x) \
384 (((struct isp_sbussoftc *)a)->sbus_poff[((x) & _BLK_REG_MASK) >> \
385 _BLK_REG_SHFT] + ((x) & 0xff))
386
387#define BXR2(sbc, off) \
388 bus_space_read_2(isp->isp_bus_tag, isp->isp_bus_handle, off)
389
390static int
| 57static int isp_sbus_mbxdma(ispsoftc_t *);
58static int isp_sbus_dmasetup(ispsoftc_t *, XS_T *, void *);
59
60
61static void isp_sbus_reset0(ispsoftc_t *);
62static void isp_sbus_reset1(ispsoftc_t *);
63static void isp_sbus_dumpregs(ispsoftc_t *, const char *);
64
65static struct ispmdvec mdvec = {
66 isp_sbus_rd_isr,
67 isp_sbus_rd_reg,
68 isp_sbus_wr_reg,
69 isp_sbus_mbxdma,
70 isp_sbus_dmasetup,
71 isp_common_dmateardown,
72 isp_sbus_reset0,
73 isp_sbus_reset1,
74 isp_sbus_dumpregs,
75 NULL,
76 BIU_BURST_ENABLE|BIU_PCI_CONF1_FIFO_64
77};
78
79static int isp_sbus_probe (device_t);
80static int isp_sbus_attach (device_t);
81static int isp_sbus_detach (device_t);
82
83
84#define ISP_SBD(isp) ((struct isp_sbussoftc *)isp)->sbus_dev
85struct isp_sbussoftc {
86 ispsoftc_t sbus_isp;
87 device_t sbus_dev;
88 struct resource * regs;
89 void * irq;
90 int iqd;
91 int rgd;
92 void * ih;
93 int16_t sbus_poff[_NREG_BLKS];
94 sdparam sbus_param;
95 struct isp_spi sbus_spi;
96 struct ispmdvec sbus_mdvec;
97};
98
99
100static device_method_t isp_sbus_methods[] = {
101 /* Device interface */
102 DEVMETHOD(device_probe, isp_sbus_probe),
103 DEVMETHOD(device_attach, isp_sbus_attach),
104 DEVMETHOD(device_detach, isp_sbus_detach),
105 { 0, 0 }
106};
107
108static driver_t isp_sbus_driver = {
109 "isp", isp_sbus_methods, sizeof (struct isp_sbussoftc)
110};
111static devclass_t isp_devclass;
112DRIVER_MODULE(isp, sbus, isp_sbus_driver, isp_devclass, 0, 0);
113MODULE_DEPEND(isp, cam, 1, 1, 1);
114MODULE_DEPEND(isp, firmware, 1, 1, 1);
115
116static int
117isp_sbus_probe(device_t dev)
118{
119 int found = 0;
120 const char *name = ofw_bus_get_name(dev);
121 if (strcmp(name, "SUNW,isp") == 0 ||
122 strcmp(name, "QLGC,isp") == 0 ||
123 strcmp(name, "ptisp") == 0 ||
124 strcmp(name, "PTI,ptisp") == 0) {
125 found++;
126 }
127 if (!found)
128 return (ENXIO);
129
130 if (isp_announced == 0 && bootverbose) {
131 printf("Qlogic ISP Driver, FreeBSD Version %d.%d, "
132 "Core Version %d.%d\n",
133 ISP_PLATFORM_VERSION_MAJOR, ISP_PLATFORM_VERSION_MINOR,
134 ISP_CORE_VERSION_MAJOR, ISP_CORE_VERSION_MINOR);
135 isp_announced++;
136 }
137 return (0);
138}
139
140static int
141isp_sbus_attach(device_t dev)
142{
143 int tval, isp_debug, role, ispburst, default_id;
144 struct isp_sbussoftc *sbs;
145 ispsoftc_t *isp = NULL;
146 int locksetup = 0;
147 int ints_setup = 0;
148
149 sbs = device_get_softc(dev);
150 if (sbs == NULL) {
151 device_printf(dev, "cannot get softc\n");
152 return (ENOMEM);
153 }
154
155 sbs->sbus_dev = dev;
156 sbs->sbus_mdvec = mdvec;
157
158 /*
159 * Figure out if we're supposed to skip this one.
160 * If we are, we actually go to ISP_ROLE_NONE.
161 */
162
163 tval = 0;
164 if (resource_int_value(device_get_name(dev), device_get_unit(dev),
165 "disable", &tval) == 0 && tval) {
166 device_printf(dev, "device is disabled\n");
167 /* but return 0 so the !$)$)*!$*) unit isn't reused */
168 return (0);
169 }
170
171 role = 0;
172 if (resource_int_value(device_get_name(dev), device_get_unit(dev),
173 "role", &role) == 0 &&
174 ((role & ~(ISP_ROLE_INITIATOR|ISP_ROLE_TARGET)) == 0)) {
175 device_printf(dev, "setting role to 0x%x\n", role);
176 } else {
177 role = ISP_DEFAULT_ROLES;
178 }
179
180 sbs->irq = sbs->regs = NULL;
181 sbs->rgd = sbs->iqd = 0;
182
183 sbs->regs = bus_alloc_resource_any(dev, SYS_RES_MEMORY, &sbs->rgd,
184 RF_ACTIVE);
185 if (sbs->regs == NULL) {
186 device_printf(dev, "unable to map registers\n");
187 goto bad;
188 }
189
190 sbs->sbus_poff[BIU_BLOCK >> _BLK_REG_SHFT] = BIU_REGS_OFF;
191 sbs->sbus_poff[MBOX_BLOCK >> _BLK_REG_SHFT] = SBUS_MBOX_REGS_OFF;
192 sbs->sbus_poff[SXP_BLOCK >> _BLK_REG_SHFT] = SBUS_SXP_REGS_OFF;
193 sbs->sbus_poff[RISC_BLOCK >> _BLK_REG_SHFT] = SBUS_RISC_REGS_OFF;
194 sbs->sbus_poff[DMA_BLOCK >> _BLK_REG_SHFT] = DMA_REGS_OFF;
195 isp = &sbs->sbus_isp;
196 isp->isp_bus_tag = rman_get_bustag(sbs->regs);
197 isp->isp_bus_handle = rman_get_bushandle(sbs->regs);
198 isp->isp_mdvec = &sbs->sbus_mdvec;
199 isp->isp_bustype = ISP_BT_SBUS;
200 isp->isp_type = ISP_HA_SCSI_UNKNOWN;
201 isp->isp_param = &sbs->sbus_param;
202 isp->isp_osinfo.pc.ptr = &sbs->sbus_spi;
203 isp->isp_revision = 0; /* XXX */
204 isp->isp_dev = dev;
205 isp->isp_nchan = 1;
206 ISP_SET_PC(isp, 0, def_role, role);
207
208 /*
209 * Get the clock frequency and convert it from HZ to MHz,
210 * rounding up. This defaults to 25MHz if there isn't a
211 * device specific one in the OFW device tree.
212 */
213 sbs->sbus_mdvec.dv_clock = (sbus_get_clockfreq(dev) + 500000)/1000000;
214
215 /*
216 * Now figure out what the proper burst sizes, etc., to use.
217 * Unfortunately, there is no ddi_dma_burstsizes here which
218 * walks up the tree finding the limiting burst size node (if
219 * any). We just use what's here for isp.
220 */
221 ispburst = sbus_get_burstsz(dev);
222 if (ispburst == 0) {
223 ispburst = SBUS_BURST_32 - 1;
224 }
225 sbs->sbus_mdvec.dv_conf1 = 0;
226 if (ispburst & (1 << 5)) {
227 sbs->sbus_mdvec.dv_conf1 = BIU_SBUS_CONF1_FIFO_32;
228 } else if (ispburst & (1 << 4)) {
229 sbs->sbus_mdvec.dv_conf1 = BIU_SBUS_CONF1_FIFO_16;
230 } else if (ispburst & (1 << 3)) {
231 sbs->sbus_mdvec.dv_conf1 =
232 BIU_SBUS_CONF1_BURST8 | BIU_SBUS_CONF1_FIFO_8;
233 }
234 if (sbs->sbus_mdvec.dv_conf1) {
235 sbs->sbus_mdvec.dv_conf1 |= BIU_BURST_ENABLE;
236 }
237
238 /*
239 * We don't trust NVRAM on SBus cards
240 */
241 isp->isp_confopts |= ISP_CFG_NONVRAM;
242
243 /*
244 * Mark things if we're a PTI SBus adapter.
245 */
246 if (strcmp("PTI,ptisp", ofw_bus_get_name(dev)) == 0 ||
247 strcmp("ptisp", ofw_bus_get_name(dev)) == 0) {
248 SDPARAM(isp, 0)->isp_ptisp = 1;
249 }
250
251 isp->isp_osinfo.fw = firmware_get("isp_1000");
252 if (isp->isp_osinfo.fw) {
253 union {
254 const void *cp;
255 uint16_t *sp;
256 } stupid;
257 stupid.cp = isp->isp_osinfo.fw->data;
258 isp->isp_mdvec->dv_ispfw = stupid.sp;
259 }
260
261 tval = 0;
262 if (resource_int_value(device_get_name(dev), device_get_unit(dev),
263 "fwload_disable", &tval) == 0 && tval != 0) {
264 isp->isp_confopts |= ISP_CFG_NORELOAD;
265 }
266
267 default_id = -1;
268 if (resource_int_value(device_get_name(dev), device_get_unit(dev),
269 "iid", &tval) == 0) {
270 default_id = tval;
271 isp->isp_confopts |= ISP_CFG_OWNLOOPID;
272 }
273 if (default_id == -1) {
274 default_id = OF_getscsinitid(dev);
275 }
276 ISP_SPI_PC(isp, 0)->iid = default_id;
277
278 isp_debug = 0;
279 (void) resource_int_value(device_get_name(dev), device_get_unit(dev),
280 "debug", &isp_debug);
281
282 /* Make sure the lock is set up. */
283 mtx_init(&isp->isp_osinfo.lock, "isp", NULL, MTX_DEF);
284 locksetup++;
285
286 sbs->irq = bus_alloc_resource_any(dev, SYS_RES_IRQ, &sbs->iqd,
287 RF_ACTIVE | RF_SHAREABLE);
288 if (sbs->irq == NULL) {
289 device_printf(dev, "could not allocate interrupt\n");
290 goto bad;
291 }
292
293 if (isp_setup_intr(dev, sbs->irq, ISP_IFLAGS, NULL, isp_platform_intr,
294 isp, &sbs->ih)) {
295 device_printf(dev, "could not setup interrupt\n");
296 goto bad;
297 }
298 ints_setup++;
299
300 /*
301 * Set up logging levels.
302 */
303 if (isp_debug) {
304 isp->isp_dblev = isp_debug;
305 } else {
306 isp->isp_dblev = ISP_LOGWARN|ISP_LOGERR;
307 }
308 if (bootverbose) {
309 isp->isp_dblev |= ISP_LOGCONFIG|ISP_LOGINFO;
310 }
311
312 /*
313 * Make sure we're in reset state.
314 */
315 ISP_LOCK(isp);
316 isp_reset(isp, 1);
317 if (isp->isp_state != ISP_RESETSTATE) {
318 isp_uninit(isp);
319 ISP_UNLOCK(isp);
320 goto bad;
321 }
322 isp_init(isp);
323 if (isp->isp_state == ISP_INITSTATE) {
324 isp->isp_state = ISP_RUNSTATE;
325 }
326 ISP_UNLOCK(isp);
327 if (isp_attach(isp)) {
328 ISP_LOCK(isp);
329 isp_uninit(isp);
330 ISP_UNLOCK(isp);
331 goto bad;
332 }
333 return (0);
334
335bad:
336
337 if (sbs && ints_setup) {
338 (void) bus_teardown_intr(dev, sbs->irq, sbs->ih);
339 }
340
341 if (sbs && sbs->irq) {
342 bus_release_resource(dev, SYS_RES_IRQ, sbs->iqd, sbs->irq);
343 }
344
345 if (locksetup && isp) {
346 mtx_destroy(&isp->isp_osinfo.lock);
347 }
348
349 if (sbs->regs) {
350 (void) bus_release_resource(dev, SYS_RES_MEMORY, sbs->rgd,
351 sbs->regs);
352 }
353 return (ENXIO);
354}
355
356static int
357isp_sbus_detach(device_t dev)
358{
359 struct isp_sbussoftc *sbs;
360 ispsoftc_t *isp;
361 int status;
362
363 sbs = device_get_softc(dev);
364 if (sbs == NULL) {
365 return (ENXIO);
366 }
367 isp = (ispsoftc_t *) sbs;
368 status = isp_detach(isp);
369 if (status)
370 return (status);
371 ISP_LOCK(isp);
372 isp_uninit(isp);
373 if (sbs->ih) {
374 (void) bus_teardown_intr(dev, sbs->irq, sbs->ih);
375 }
376 ISP_UNLOCK(isp);
377 mtx_destroy(&isp->isp_osinfo.lock);
378 (void) bus_release_resource(dev, SYS_RES_IRQ, sbs->iqd, sbs->irq);
379 (void) bus_release_resource(dev, SYS_RES_MEMORY, sbs->rgd, sbs->regs);
380 return (0);
381}
382
383#define IspVirt2Off(a, x) \
384 (((struct isp_sbussoftc *)a)->sbus_poff[((x) & _BLK_REG_MASK) >> \
385 _BLK_REG_SHFT] + ((x) & 0xff))
386
387#define BXR2(sbc, off) \
388 bus_space_read_2(isp->isp_bus_tag, isp->isp_bus_handle, off)
389
390static int
|
391isp_sbus_rd_isr(ispsoftc_t *isp, uint32_t *isrp, uint16_t *semap, uint16_t *mbp)
| 391isp_sbus_rd_isr(ispsoftc_t *isp, uint16_t *isrp, uint16_t *semap, uint16_t *info)
|
392{
393 uint16_t isr, sema;
394
395 isr = BXR2(sbc, IspVirt2Off(isp, BIU_ISR));
396 sema = BXR2(sbc, IspVirt2Off(isp, BIU_SEMA));
397 isp_prt(isp, ISP_LOGDEBUG3, "ISR 0x%x SEMA 0x%x", isr, sema);
398 isr &= INT_PENDING_MASK(isp);
399 sema &= BIU_SEMA_LOCK;
400 if (isr == 0 && sema == 0) {
401 return (0);
402 }
403 *isrp = isr;
| 392{
393 uint16_t isr, sema;
394
395 isr = BXR2(sbc, IspVirt2Off(isp, BIU_ISR));
396 sema = BXR2(sbc, IspVirt2Off(isp, BIU_SEMA));
397 isp_prt(isp, ISP_LOGDEBUG3, "ISR 0x%x SEMA 0x%x", isr, sema);
398 isr &= INT_PENDING_MASK(isp);
399 sema &= BIU_SEMA_LOCK;
400 if (isr == 0 && sema == 0) {
401 return (0);
402 }
403 *isrp = isr;
|
404 if ((*semap = sema) != 0) {
405 *mbp = BXR2(sbc, IspVirt2Off(isp, OUTMAILBOX0));
406 }
| 404 if ((*semap = sema) != 0)
405 *info = BXR2(sbc, IspVirt2Off(isp, OUTMAILBOX0));
|
407 return (1);
408}
409
410static uint32_t
411isp_sbus_rd_reg(ispsoftc_t *isp, int regoff)
412{
413 uint16_t rval;
414 struct isp_sbussoftc *sbs = (struct isp_sbussoftc *) isp;
415 int offset = sbs->sbus_poff[(regoff & _BLK_REG_MASK) >> _BLK_REG_SHFT];
416 offset += (regoff & 0xff);
417 rval = bus_space_read_2(isp->isp_bus_tag, isp->isp_bus_handle, offset);
418 isp_prt(isp, ISP_LOGDEBUG3,
419 "isp_sbus_rd_reg(off %x) = %x", regoff, rval);
420 return (rval);
421}
422
423static void
424isp_sbus_wr_reg(ispsoftc_t *isp, int regoff, uint32_t val)
425{
426 struct isp_sbussoftc *sbs = (struct isp_sbussoftc *) isp;
427 int offset = sbs->sbus_poff[(regoff & _BLK_REG_MASK) >> _BLK_REG_SHFT];
428 offset += (regoff & 0xff);
429 isp_prt(isp, ISP_LOGDEBUG3,
430 "isp_sbus_wr_reg(off %x) = %x", regoff, val);
431 bus_space_write_2(isp->isp_bus_tag, isp->isp_bus_handle, offset, val);
432 MEMORYBARRIER(isp, SYNC_REG, offset, 2, -1);
433}
434
435struct imush {
436 ispsoftc_t *isp;
437 int error;
438};
439
440static void imc(void *, bus_dma_segment_t *, int, int);
441
442static void
443imc(void *arg, bus_dma_segment_t *segs, int nseg, int error)
444{
445 struct imush *imushp = (struct imush *) arg;
446 if (error) {
447 imushp->error = error;
448 } else {
449 ispsoftc_t *isp =imushp->isp;
450 bus_addr_t addr = segs->ds_addr;
451
452 isp->isp_rquest_dma = addr;
453 addr += ISP_QUEUE_SIZE(RQUEST_QUEUE_LEN(isp));
454 isp->isp_result_dma = addr;
455 }
456}
457
458static int
459isp_sbus_mbxdma(ispsoftc_t *isp)
460{
461 caddr_t base;
462 uint32_t len;
463 int i, error;
464 struct imush im;
465
466 /*
467 * Already been here? If so, leave...
468 */
469 if (isp->isp_rquest) {
470 return (0);
471 }
472
473 ISP_UNLOCK(isp);
474
475 len = sizeof (struct isp_pcmd) * isp->isp_maxcmds;
476 isp->isp_osinfo.pcmd_pool = (struct isp_pcmd *)
477 malloc(len, M_DEVBUF, M_WAITOK | M_ZERO);
478 if (isp->isp_osinfo.pcmd_pool == NULL) {
479 isp_prt(isp, ISP_LOGERR, "cannot alloc pcmd pool");
480 ISP_LOCK(isp);
481 return (1);
482 }
483
484 len = sizeof (isp_hdl_t *) * isp->isp_maxcmds;
485 isp->isp_xflist = (isp_hdl_t *) malloc(len, M_DEVBUF, M_WAITOK | M_ZERO);
486 if (isp->isp_xflist == NULL) {
487 isp_prt(isp, ISP_LOGERR, "cannot alloc xflist array");
488 ISP_LOCK(isp);
489 return (1);
490 }
491 for (len = 0; len < isp->isp_maxcmds - 1; len++) {
492 isp->isp_xflist[len].cmd = &isp->isp_xflist[len+1];
493 }
494 isp->isp_xffree = isp->isp_xflist;
495 len = sizeof (bus_dmamap_t) * isp->isp_maxcmds;
496
497 if (isp_dma_tag_create(BUS_DMA_ROOTARG(ISP_SBD(isp)), 1,
498 BUS_SPACE_MAXADDR_24BIT+1, BUS_SPACE_MAXADDR_32BIT,
499 BUS_SPACE_MAXADDR_32BIT, NULL, NULL, BUS_SPACE_MAXSIZE_32BIT,
500 ISP_NSEG_MAX, BUS_SPACE_MAXADDR_24BIT, 0, &isp->isp_osinfo.dmat)) {
501 isp_prt(isp, ISP_LOGERR, "could not create master dma tag");
502 free(isp->isp_osinfo.pcmd_pool, M_DEVBUF);
503 free(isp->isp_xflist, M_DEVBUF);
504 ISP_LOCK(isp);
505 return(1);
506 }
507
508 /*
509 * Allocate and map the request, result queues, plus FC scratch area.
510 */
511 len = ISP_QUEUE_SIZE(RQUEST_QUEUE_LEN(isp));
512 len += ISP_QUEUE_SIZE(RESULT_QUEUE_LEN(isp));
513
514 if (isp_dma_tag_create(isp->isp_osinfo.dmat, QENTRY_LEN,
515 BUS_SPACE_MAXADDR_24BIT+1, BUS_SPACE_MAXADDR_32BIT,
516 BUS_SPACE_MAXADDR_32BIT, NULL, NULL, len, 1,
517 BUS_SPACE_MAXADDR_24BIT, 0, &isp->isp_osinfo.cdmat)) {
518 isp_prt(isp, ISP_LOGERR,
519 "cannot create a dma tag for control spaces");
520 free(isp->isp_osinfo.pcmd_pool, M_DEVBUF);
521 free(isp->isp_xflist, M_DEVBUF);
522 ISP_LOCK(isp);
523 return (1);
524 }
525
526 if (bus_dmamem_alloc(isp->isp_osinfo.cdmat, (void **)&base, BUS_DMA_NOWAIT | BUS_DMA_COHERENT,
527 &isp->isp_osinfo.cdmap) != 0) {
528 isp_prt(isp, ISP_LOGERR,
529 "cannot allocate %d bytes of CCB memory", len);
530 bus_dma_tag_destroy(isp->isp_osinfo.cdmat);
531 free(isp->isp_osinfo.pcmd_pool, M_DEVBUF);
532 free(isp->isp_xflist, M_DEVBUF);
533 ISP_LOCK(isp);
534 return (1);
535 }
536
537 for (i = 0; i < isp->isp_maxcmds; i++) {
538 struct isp_pcmd *pcmd = &isp->isp_osinfo.pcmd_pool[i];
539 error = bus_dmamap_create(isp->isp_osinfo.dmat, 0, &pcmd->dmap);
540 if (error) {
541 isp_prt(isp, ISP_LOGERR,
542 "error %d creating per-cmd DMA maps", error);
543 while (--i >= 0) {
544 bus_dmamap_destroy(isp->isp_osinfo.dmat,
545 isp->isp_osinfo.pcmd_pool[i].dmap);
546 }
547 goto bad;
548 }
549 callout_init_mtx(&pcmd->wdog, &isp->isp_osinfo.lock, 0);
550 if (i == isp->isp_maxcmds-1) {
551 pcmd->next = NULL;
552 } else {
553 pcmd->next = &isp->isp_osinfo.pcmd_pool[i+1];
554 }
555 }
556 isp->isp_osinfo.pcmd_free = &isp->isp_osinfo.pcmd_pool[0];
557
558 im.isp = isp;
559 im.error = 0;
560 bus_dmamap_load(isp->isp_osinfo.cdmat, isp->isp_osinfo.cdmap, base, len, imc, &im, 0);
561 if (im.error) {
562 isp_prt(isp, ISP_LOGERR,
563 "error %d loading dma map for control areas", im.error);
564 goto bad;
565 }
566
567 isp->isp_rquest = base;
568 base += ISP_QUEUE_SIZE(RQUEST_QUEUE_LEN(isp));
569 isp->isp_result = base;
570 ISP_LOCK(isp);
571 return (0);
572
573bad:
574 bus_dmamem_free(isp->isp_osinfo.cdmat, base, isp->isp_osinfo.cdmap);
575 bus_dma_tag_destroy(isp->isp_osinfo.cdmat);
576 free(isp->isp_xflist, M_DEVBUF);
577 free(isp->isp_osinfo.pcmd_pool, M_DEVBUF);
578 isp->isp_rquest = NULL;
579 ISP_LOCK(isp);
580 return (1);
581}
582
583typedef struct {
584 ispsoftc_t *isp;
585 void *cmd_token;
586 void *rq; /* original request */
587 int error;
588 bus_size_t mapsize;
589} mush_t;
590
591#define MUSHERR_NOQENTRIES -2
592
593static void dma2(void *, bus_dma_segment_t *, int, int);
594
595static void
596dma2(void *arg, bus_dma_segment_t *dm_segs, int nseg, int error)
597{
598 mush_t *mp;
599 ispsoftc_t *isp;
600 struct ccb_scsiio *csio;
601 isp_ddir_t ddir;
602 ispreq_t *rq;
603
604 mp = (mush_t *) arg;
605 if (error) {
606 mp->error = error;
607 return;
608 }
609 csio = mp->cmd_token;
610 isp = mp->isp;
611 rq = mp->rq;
612 if (nseg) {
613 if ((csio->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_IN) {
614 bus_dmamap_sync(isp->isp_osinfo.dmat, PISP_PCMD(csio)->dmap, BUS_DMASYNC_PREREAD);
615 ddir = ISP_FROM_DEVICE;
616 } else if ((csio->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_OUT) {
617 bus_dmamap_sync(isp->isp_osinfo.dmat, PISP_PCMD(csio)->dmap, BUS_DMASYNC_PREWRITE);
618 ddir = ISP_TO_DEVICE;
619 } else {
620 ddir = ISP_NOXFR;
621 }
622 } else {
623 dm_segs = NULL;
624 nseg = 0;
625 ddir = ISP_NOXFR;
626 }
627
628 if (isp_send_cmd(isp, rq, dm_segs, nseg, XS_XFRLEN(csio), ddir, NULL) != CMD_QUEUED) {
629 mp->error = MUSHERR_NOQENTRIES;
630 }
631}
632
633static int
634isp_sbus_dmasetup(ispsoftc_t *isp, struct ccb_scsiio *csio, void *ff)
635{
636 mush_t mush, *mp;
637 void (*eptr)(void *, bus_dma_segment_t *, int, int);
638 int error;
639
640 mp = &mush;
641 mp->isp = isp;
642 mp->cmd_token = csio;
643 mp->rq = ff;
644 mp->error = 0;
645 mp->mapsize = 0;
646
647 eptr = dma2;
648
649 error = bus_dmamap_load_ccb(isp->isp_osinfo.dmat,
650 PISP_PCMD(csio)->dmap, (union ccb *)csio, eptr, mp, 0);
651 if (error == EINPROGRESS) {
652 bus_dmamap_unload(isp->isp_osinfo.dmat, PISP_PCMD(csio)->dmap);
653 mp->error = EINVAL;
654 isp_prt(isp, ISP_LOGERR,
655 "deferred dma allocation not supported");
656 } else if (error && mp->error == 0) {
657#ifdef DIAGNOSTIC
658 isp_prt(isp, ISP_LOGERR, "error %d in dma mapping code", error);
659#endif
660 mp->error = error;
661 }
662 if (mp->error) {
663 int retval = CMD_COMPLETE;
664 if (mp->error == MUSHERR_NOQENTRIES) {
665 retval = CMD_EAGAIN;
666 } else if (mp->error == EFBIG) {
667 XS_SETERR(csio, CAM_REQ_TOO_BIG);
668 } else if (mp->error == EINVAL) {
669 XS_SETERR(csio, CAM_REQ_INVALID);
670 } else {
671 XS_SETERR(csio, CAM_UNREC_HBA_ERROR);
672 }
673 return (retval);
674 }
675 return (CMD_QUEUED);
676}
677
678static void
679isp_sbus_reset0(ispsoftc_t *isp)
680{
681 ISP_DISABLE_INTS(isp);
682}
683
684static void
685isp_sbus_reset1(ispsoftc_t *isp)
686{
687 ISP_ENABLE_INTS(isp);
688}
689
690static void
691isp_sbus_dumpregs(ispsoftc_t *isp, const char *msg)
692{
693 if (msg)
694 printf("%s: %s\n", device_get_nameunit(isp->isp_dev), msg);
695 else
696 printf("%s:\n", device_get_nameunit(isp->isp_dev));
697 printf(" biu_conf1=%x", ISP_READ(isp, BIU_CONF1));
698 printf(" biu_icr=%x biu_isr=%x biu_sema=%x ", ISP_READ(isp, BIU_ICR),
699 ISP_READ(isp, BIU_ISR), ISP_READ(isp, BIU_SEMA));
700 printf("risc_hccr=%x\n", ISP_READ(isp, HCCR));
701
702
703 ISP_WRITE(isp, HCCR, HCCR_CMD_PAUSE);
704 printf(" cdma_conf=%x cdma_sts=%x cdma_fifostat=%x\n",
705 ISP_READ(isp, CDMA_CONF), ISP_READ(isp, CDMA_STATUS),
706 ISP_READ(isp, CDMA_FIFO_STS));
707 printf(" ddma_conf=%x ddma_sts=%x ddma_fifostat=%x\n",
708 ISP_READ(isp, DDMA_CONF), ISP_READ(isp, DDMA_STATUS),
709 ISP_READ(isp, DDMA_FIFO_STS));
710 printf(" sxp_int=%x sxp_gross=%x sxp(scsi_ctrl)=%x\n",
711 ISP_READ(isp, SXP_INTERRUPT),
712 ISP_READ(isp, SXP_GROSS_ERR),
713 ISP_READ(isp, SXP_PINS_CTRL));
714 ISP_WRITE(isp, HCCR, HCCR_CMD_RELEASE);
715 printf(" mbox regs: %x %x %x %x %x\n",
716 ISP_READ(isp, OUTMAILBOX0), ISP_READ(isp, OUTMAILBOX1),
717 ISP_READ(isp, OUTMAILBOX2), ISP_READ(isp, OUTMAILBOX3),
718 ISP_READ(isp, OUTMAILBOX4));
719}
| 406 return (1);
407}
408
409static uint32_t
410isp_sbus_rd_reg(ispsoftc_t *isp, int regoff)
411{
412 uint16_t rval;
413 struct isp_sbussoftc *sbs = (struct isp_sbussoftc *) isp;
414 int offset = sbs->sbus_poff[(regoff & _BLK_REG_MASK) >> _BLK_REG_SHFT];
415 offset += (regoff & 0xff);
416 rval = bus_space_read_2(isp->isp_bus_tag, isp->isp_bus_handle, offset);
417 isp_prt(isp, ISP_LOGDEBUG3,
418 "isp_sbus_rd_reg(off %x) = %x", regoff, rval);
419 return (rval);
420}
421
422static void
423isp_sbus_wr_reg(ispsoftc_t *isp, int regoff, uint32_t val)
424{
425 struct isp_sbussoftc *sbs = (struct isp_sbussoftc *) isp;
426 int offset = sbs->sbus_poff[(regoff & _BLK_REG_MASK) >> _BLK_REG_SHFT];
427 offset += (regoff & 0xff);
428 isp_prt(isp, ISP_LOGDEBUG3,
429 "isp_sbus_wr_reg(off %x) = %x", regoff, val);
430 bus_space_write_2(isp->isp_bus_tag, isp->isp_bus_handle, offset, val);
431 MEMORYBARRIER(isp, SYNC_REG, offset, 2, -1);
432}
433
434struct imush {
435 ispsoftc_t *isp;
436 int error;
437};
438
439static void imc(void *, bus_dma_segment_t *, int, int);
440
441static void
442imc(void *arg, bus_dma_segment_t *segs, int nseg, int error)
443{
444 struct imush *imushp = (struct imush *) arg;
445 if (error) {
446 imushp->error = error;
447 } else {
448 ispsoftc_t *isp =imushp->isp;
449 bus_addr_t addr = segs->ds_addr;
450
451 isp->isp_rquest_dma = addr;
452 addr += ISP_QUEUE_SIZE(RQUEST_QUEUE_LEN(isp));
453 isp->isp_result_dma = addr;
454 }
455}
456
457static int
458isp_sbus_mbxdma(ispsoftc_t *isp)
459{
460 caddr_t base;
461 uint32_t len;
462 int i, error;
463 struct imush im;
464
465 /*
466 * Already been here? If so, leave...
467 */
468 if (isp->isp_rquest) {
469 return (0);
470 }
471
472 ISP_UNLOCK(isp);
473
474 len = sizeof (struct isp_pcmd) * isp->isp_maxcmds;
475 isp->isp_osinfo.pcmd_pool = (struct isp_pcmd *)
476 malloc(len, M_DEVBUF, M_WAITOK | M_ZERO);
477 if (isp->isp_osinfo.pcmd_pool == NULL) {
478 isp_prt(isp, ISP_LOGERR, "cannot alloc pcmd pool");
479 ISP_LOCK(isp);
480 return (1);
481 }
482
483 len = sizeof (isp_hdl_t *) * isp->isp_maxcmds;
484 isp->isp_xflist = (isp_hdl_t *) malloc(len, M_DEVBUF, M_WAITOK | M_ZERO);
485 if (isp->isp_xflist == NULL) {
486 isp_prt(isp, ISP_LOGERR, "cannot alloc xflist array");
487 ISP_LOCK(isp);
488 return (1);
489 }
490 for (len = 0; len < isp->isp_maxcmds - 1; len++) {
491 isp->isp_xflist[len].cmd = &isp->isp_xflist[len+1];
492 }
493 isp->isp_xffree = isp->isp_xflist;
494 len = sizeof (bus_dmamap_t) * isp->isp_maxcmds;
495
496 if (isp_dma_tag_create(BUS_DMA_ROOTARG(ISP_SBD(isp)), 1,
497 BUS_SPACE_MAXADDR_24BIT+1, BUS_SPACE_MAXADDR_32BIT,
498 BUS_SPACE_MAXADDR_32BIT, NULL, NULL, BUS_SPACE_MAXSIZE_32BIT,
499 ISP_NSEG_MAX, BUS_SPACE_MAXADDR_24BIT, 0, &isp->isp_osinfo.dmat)) {
500 isp_prt(isp, ISP_LOGERR, "could not create master dma tag");
501 free(isp->isp_osinfo.pcmd_pool, M_DEVBUF);
502 free(isp->isp_xflist, M_DEVBUF);
503 ISP_LOCK(isp);
504 return(1);
505 }
506
507 /*
508 * Allocate and map the request, result queues, plus FC scratch area.
509 */
510 len = ISP_QUEUE_SIZE(RQUEST_QUEUE_LEN(isp));
511 len += ISP_QUEUE_SIZE(RESULT_QUEUE_LEN(isp));
512
513 if (isp_dma_tag_create(isp->isp_osinfo.dmat, QENTRY_LEN,
514 BUS_SPACE_MAXADDR_24BIT+1, BUS_SPACE_MAXADDR_32BIT,
515 BUS_SPACE_MAXADDR_32BIT, NULL, NULL, len, 1,
516 BUS_SPACE_MAXADDR_24BIT, 0, &isp->isp_osinfo.cdmat)) {
517 isp_prt(isp, ISP_LOGERR,
518 "cannot create a dma tag for control spaces");
519 free(isp->isp_osinfo.pcmd_pool, M_DEVBUF);
520 free(isp->isp_xflist, M_DEVBUF);
521 ISP_LOCK(isp);
522 return (1);
523 }
524
525 if (bus_dmamem_alloc(isp->isp_osinfo.cdmat, (void **)&base, BUS_DMA_NOWAIT | BUS_DMA_COHERENT,
526 &isp->isp_osinfo.cdmap) != 0) {
527 isp_prt(isp, ISP_LOGERR,
528 "cannot allocate %d bytes of CCB memory", len);
529 bus_dma_tag_destroy(isp->isp_osinfo.cdmat);
530 free(isp->isp_osinfo.pcmd_pool, M_DEVBUF);
531 free(isp->isp_xflist, M_DEVBUF);
532 ISP_LOCK(isp);
533 return (1);
534 }
535
536 for (i = 0; i < isp->isp_maxcmds; i++) {
537 struct isp_pcmd *pcmd = &isp->isp_osinfo.pcmd_pool[i];
538 error = bus_dmamap_create(isp->isp_osinfo.dmat, 0, &pcmd->dmap);
539 if (error) {
540 isp_prt(isp, ISP_LOGERR,
541 "error %d creating per-cmd DMA maps", error);
542 while (--i >= 0) {
543 bus_dmamap_destroy(isp->isp_osinfo.dmat,
544 isp->isp_osinfo.pcmd_pool[i].dmap);
545 }
546 goto bad;
547 }
548 callout_init_mtx(&pcmd->wdog, &isp->isp_osinfo.lock, 0);
549 if (i == isp->isp_maxcmds-1) {
550 pcmd->next = NULL;
551 } else {
552 pcmd->next = &isp->isp_osinfo.pcmd_pool[i+1];
553 }
554 }
555 isp->isp_osinfo.pcmd_free = &isp->isp_osinfo.pcmd_pool[0];
556
557 im.isp = isp;
558 im.error = 0;
559 bus_dmamap_load(isp->isp_osinfo.cdmat, isp->isp_osinfo.cdmap, base, len, imc, &im, 0);
560 if (im.error) {
561 isp_prt(isp, ISP_LOGERR,
562 "error %d loading dma map for control areas", im.error);
563 goto bad;
564 }
565
566 isp->isp_rquest = base;
567 base += ISP_QUEUE_SIZE(RQUEST_QUEUE_LEN(isp));
568 isp->isp_result = base;
569 ISP_LOCK(isp);
570 return (0);
571
572bad:
573 bus_dmamem_free(isp->isp_osinfo.cdmat, base, isp->isp_osinfo.cdmap);
574 bus_dma_tag_destroy(isp->isp_osinfo.cdmat);
575 free(isp->isp_xflist, M_DEVBUF);
576 free(isp->isp_osinfo.pcmd_pool, M_DEVBUF);
577 isp->isp_rquest = NULL;
578 ISP_LOCK(isp);
579 return (1);
580}
581
582typedef struct {
583 ispsoftc_t *isp;
584 void *cmd_token;
585 void *rq; /* original request */
586 int error;
587 bus_size_t mapsize;
588} mush_t;
589
590#define MUSHERR_NOQENTRIES -2
591
592static void dma2(void *, bus_dma_segment_t *, int, int);
593
594static void
595dma2(void *arg, bus_dma_segment_t *dm_segs, int nseg, int error)
596{
597 mush_t *mp;
598 ispsoftc_t *isp;
599 struct ccb_scsiio *csio;
600 isp_ddir_t ddir;
601 ispreq_t *rq;
602
603 mp = (mush_t *) arg;
604 if (error) {
605 mp->error = error;
606 return;
607 }
608 csio = mp->cmd_token;
609 isp = mp->isp;
610 rq = mp->rq;
611 if (nseg) {
612 if ((csio->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_IN) {
613 bus_dmamap_sync(isp->isp_osinfo.dmat, PISP_PCMD(csio)->dmap, BUS_DMASYNC_PREREAD);
614 ddir = ISP_FROM_DEVICE;
615 } else if ((csio->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_OUT) {
616 bus_dmamap_sync(isp->isp_osinfo.dmat, PISP_PCMD(csio)->dmap, BUS_DMASYNC_PREWRITE);
617 ddir = ISP_TO_DEVICE;
618 } else {
619 ddir = ISP_NOXFR;
620 }
621 } else {
622 dm_segs = NULL;
623 nseg = 0;
624 ddir = ISP_NOXFR;
625 }
626
627 if (isp_send_cmd(isp, rq, dm_segs, nseg, XS_XFRLEN(csio), ddir, NULL) != CMD_QUEUED) {
628 mp->error = MUSHERR_NOQENTRIES;
629 }
630}
631
632static int
633isp_sbus_dmasetup(ispsoftc_t *isp, struct ccb_scsiio *csio, void *ff)
634{
635 mush_t mush, *mp;
636 void (*eptr)(void *, bus_dma_segment_t *, int, int);
637 int error;
638
639 mp = &mush;
640 mp->isp = isp;
641 mp->cmd_token = csio;
642 mp->rq = ff;
643 mp->error = 0;
644 mp->mapsize = 0;
645
646 eptr = dma2;
647
648 error = bus_dmamap_load_ccb(isp->isp_osinfo.dmat,
649 PISP_PCMD(csio)->dmap, (union ccb *)csio, eptr, mp, 0);
650 if (error == EINPROGRESS) {
651 bus_dmamap_unload(isp->isp_osinfo.dmat, PISP_PCMD(csio)->dmap);
652 mp->error = EINVAL;
653 isp_prt(isp, ISP_LOGERR,
654 "deferred dma allocation not supported");
655 } else if (error && mp->error == 0) {
656#ifdef DIAGNOSTIC
657 isp_prt(isp, ISP_LOGERR, "error %d in dma mapping code", error);
658#endif
659 mp->error = error;
660 }
661 if (mp->error) {
662 int retval = CMD_COMPLETE;
663 if (mp->error == MUSHERR_NOQENTRIES) {
664 retval = CMD_EAGAIN;
665 } else if (mp->error == EFBIG) {
666 XS_SETERR(csio, CAM_REQ_TOO_BIG);
667 } else if (mp->error == EINVAL) {
668 XS_SETERR(csio, CAM_REQ_INVALID);
669 } else {
670 XS_SETERR(csio, CAM_UNREC_HBA_ERROR);
671 }
672 return (retval);
673 }
674 return (CMD_QUEUED);
675}
676
677static void
678isp_sbus_reset0(ispsoftc_t *isp)
679{
680 ISP_DISABLE_INTS(isp);
681}
682
683static void
684isp_sbus_reset1(ispsoftc_t *isp)
685{
686 ISP_ENABLE_INTS(isp);
687}
688
689static void
690isp_sbus_dumpregs(ispsoftc_t *isp, const char *msg)
691{
692 if (msg)
693 printf("%s: %s\n", device_get_nameunit(isp->isp_dev), msg);
694 else
695 printf("%s:\n", device_get_nameunit(isp->isp_dev));
696 printf(" biu_conf1=%x", ISP_READ(isp, BIU_CONF1));
697 printf(" biu_icr=%x biu_isr=%x biu_sema=%x ", ISP_READ(isp, BIU_ICR),
698 ISP_READ(isp, BIU_ISR), ISP_READ(isp, BIU_SEMA));
699 printf("risc_hccr=%x\n", ISP_READ(isp, HCCR));
700
701
702 ISP_WRITE(isp, HCCR, HCCR_CMD_PAUSE);
703 printf(" cdma_conf=%x cdma_sts=%x cdma_fifostat=%x\n",
704 ISP_READ(isp, CDMA_CONF), ISP_READ(isp, CDMA_STATUS),
705 ISP_READ(isp, CDMA_FIFO_STS));
706 printf(" ddma_conf=%x ddma_sts=%x ddma_fifostat=%x\n",
707 ISP_READ(isp, DDMA_CONF), ISP_READ(isp, DDMA_STATUS),
708 ISP_READ(isp, DDMA_FIFO_STS));
709 printf(" sxp_int=%x sxp_gross=%x sxp(scsi_ctrl)=%x\n",
710 ISP_READ(isp, SXP_INTERRUPT),
711 ISP_READ(isp, SXP_GROSS_ERR),
712 ISP_READ(isp, SXP_PINS_CTRL));
713 ISP_WRITE(isp, HCCR, HCCR_CMD_RELEASE);
714 printf(" mbox regs: %x %x %x %x %x\n",
715 ISP_READ(isp, OUTMAILBOX0), ISP_READ(isp, OUTMAILBOX1),
716 ISP_READ(isp, OUTMAILBOX2), ISP_READ(isp, OUTMAILBOX3),
717 ISP_READ(isp, OUTMAILBOX4));
718}
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