FreeBSD/Linux Kernel Cross Reference
sys/dev/ips/ips_pci.c
1 /*-
2 * Copyright (c) 2002 Adaptec Inc.
3 * All rights reserved.
4 *
5 * Written by: David Jeffery
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 * 1. Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 * notice, this list of conditions and the following disclaimer in the
14 * documentation and/or other materials provided with the distribution.
15 *
16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
17 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
19 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
20 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
21 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
22 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
23 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
24 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
25 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
26 * SUCH DAMAGE.
27 */
28
29 #include <sys/cdefs.h>
30 __FBSDID("$FreeBSD: releng/9.0/sys/dev/ips/ips_pci.c 200620 2009-12-17 00:21:12Z mjacob $");
31
32 #include <dev/ips/ipsreg.h>
33 #include <dev/ips/ips.h>
34
35 #include <dev/pci/pcireg.h>
36 #include <dev/pci/pcivar.h>
37
38 static int ips_pci_free(ips_softc_t *sc);
39 static void ips_intrhook(void *arg);
40
41 static int ips_pci_probe(device_t dev)
42 {
43
44 if ((pci_get_vendor(dev) == IPS_VENDOR_ID) &&
45 (pci_get_device(dev) == IPS_MORPHEUS_DEVICE_ID)) {
46 device_set_desc(dev, "IBM ServeRAID Adapter");
47 return (BUS_PROBE_DEFAULT);
48 } else if ((pci_get_vendor(dev) == IPS_VENDOR_ID) &&
49 (pci_get_device(dev) == IPS_COPPERHEAD_DEVICE_ID)) {
50 device_set_desc(dev, "IBM ServeRAID Adapter");
51 return (BUS_PROBE_DEFAULT);
52 } else if ((pci_get_vendor(dev) == IPS_VENDOR_ID_ADAPTEC) &&
53 (pci_get_device(dev) == IPS_MARCO_DEVICE_ID)) {
54 device_set_desc(dev, "Adaptec ServeRAID Adapter");
55 return (BUS_PROBE_DEFAULT);
56 }
57 return(ENXIO);
58 }
59
60 static int ips_pci_attach(device_t dev)
61 {
62 u_int32_t command;
63 ips_softc_t *sc;
64
65
66 if (resource_disabled(device_get_name(dev), device_get_unit(dev))) {
67 device_printf(dev, "device is disabled\n");
68 /* but return 0 so the !$)$)*!$*) unit isn't reused */
69 return (0);
70 }
71 DEVICE_PRINTF(1, dev, "in attach.\n");
72 sc = (ips_softc_t *)device_get_softc(dev);
73 if(!sc){
74 printf("how is sc NULL?!\n");
75 return (ENXIO);
76 }
77 bzero(sc, sizeof(ips_softc_t));
78 sc->dev = dev;
79
80 if(pci_get_device(dev) == IPS_MORPHEUS_DEVICE_ID){
81 sc->ips_adapter_reinit = ips_morpheus_reinit;
82 sc->ips_adapter_intr = ips_morpheus_intr;
83 sc->ips_issue_cmd = ips_issue_morpheus_cmd;
84 sc->ips_poll_cmd = ips_morpheus_poll;
85 } else if(pci_get_device(dev) == IPS_COPPERHEAD_DEVICE_ID){
86 sc->ips_adapter_reinit = ips_copperhead_reinit;
87 sc->ips_adapter_intr = ips_copperhead_intr;
88 sc->ips_issue_cmd = ips_issue_copperhead_cmd;
89 sc->ips_poll_cmd = ips_copperhead_poll;
90 } else if (pci_get_device(dev) == IPS_MARCO_DEVICE_ID){
91 sc->ips_adapter_reinit = ips_morpheus_reinit;
92 sc->ips_adapter_intr = ips_morpheus_intr;
93 sc->ips_issue_cmd = ips_issue_morpheus_cmd;
94 sc->ips_poll_cmd = ips_morpheus_poll;
95 } else
96 goto error;
97 /* make sure busmastering is on */
98 command = pci_read_config(dev, PCIR_COMMAND, 1);
99 command |= PCIM_CMD_BUSMASTEREN;
100 pci_write_config(dev, PCIR_COMMAND, command, 1);
101 /* seting up io space */
102 sc->iores = NULL;
103 if(command & PCIM_CMD_MEMEN){
104 PRINTF(10, "trying MEMIO\n");
105 if(pci_get_device(dev) == IPS_COPPERHEAD_DEVICE_ID)
106 sc->rid = PCIR_BAR(1);
107 else
108 sc->rid = PCIR_BAR(0);
109 sc->iotype = SYS_RES_MEMORY;
110 sc->iores = bus_alloc_resource_any(dev, sc->iotype,
111 &sc->rid, RF_ACTIVE);
112 }
113 if(!sc->iores && command & PCIM_CMD_PORTEN){
114 PRINTF(10, "trying PORTIO\n");
115 sc->rid = PCIR_BAR(0);
116 sc->iotype = SYS_RES_IOPORT;
117 sc->iores = bus_alloc_resource_any(dev, sc->iotype,
118 &sc->rid, RF_ACTIVE);
119 }
120 if(sc->iores == NULL){
121 device_printf(dev, "resource allocation failed\n");
122 return (ENXIO);
123 }
124 sc->bustag = rman_get_bustag(sc->iores);
125 sc->bushandle = rman_get_bushandle(sc->iores);
126 /*allocate an interrupt. when does the irq become active? after leaving attach? */
127 sc->irqrid = 0;
128 if(!(sc->irqres = bus_alloc_resource_any(dev, SYS_RES_IRQ,
129 &sc->irqrid, RF_SHAREABLE | RF_ACTIVE))){
130 device_printf(dev, "irq allocation failed\n");
131 goto error;
132 }
133 if(bus_setup_intr(dev, sc->irqres, INTR_TYPE_BIO|INTR_MPSAFE, NULL,
134 sc->ips_adapter_intr, sc, &sc->irqcookie)){
135 device_printf(dev, "irq setup failed\n");
136 goto error;
137 }
138 if (bus_dma_tag_create( /* parent */ NULL,
139 /* alignemnt */ 1,
140 /* boundary */ 0,
141 /* lowaddr */ BUS_SPACE_MAXADDR_32BIT,
142 /* highaddr */ BUS_SPACE_MAXADDR,
143 /* filter */ NULL,
144 /* filterarg */ NULL,
145 /* maxsize */ BUS_SPACE_MAXSIZE_32BIT,
146 /* numsegs */ IPS_MAX_SG_ELEMENTS,
147 /* maxsegsize*/ BUS_SPACE_MAXSIZE_32BIT,
148 /* flags */ 0,
149 /* lockfunc */ NULL,
150 /* lockarg */ NULL,
151 &sc->adapter_dmatag) != 0) {
152 printf("IPS can't alloc dma tag\n");
153 goto error;
154 }
155 sc->ips_ich.ich_func = ips_intrhook;
156 sc->ips_ich.ich_arg = sc;
157 mtx_init(&sc->queue_mtx, "IPS bioqueue lock", NULL, MTX_DEF);
158 sema_init(&sc->cmd_sema, 0, "IPS Command Semaphore");
159 bioq_init(&sc->queue);
160 if (config_intrhook_establish(&sc->ips_ich) != 0) {
161 printf("IPS can't establish configuration hook\n");
162 goto error;
163 }
164 return 0;
165 error:
166 ips_pci_free(sc);
167 return (ENXIO);
168 }
169
170 static void
171 ips_intrhook(void *arg)
172 {
173 struct ips_softc *sc = (struct ips_softc *)arg;
174
175 config_intrhook_disestablish(&sc->ips_ich);
176 if (ips_adapter_init(sc))
177 ips_pci_free(sc);
178 else
179 sc->configured = 1;
180 }
181
182 static int ips_pci_free(ips_softc_t *sc)
183 {
184 if(sc->adapter_dmatag)
185 bus_dma_tag_destroy(sc->adapter_dmatag);
186 if(sc->irqcookie)
187 bus_teardown_intr(sc->dev, sc->irqres, sc->irqcookie);
188 if(sc->irqres)
189 bus_release_resource(sc->dev, SYS_RES_IRQ, sc->irqrid, sc->irqres);
190 if(sc->iores)
191 bus_release_resource(sc->dev, sc->iotype, sc->rid, sc->iores);
192 sc->configured = 0;
193 mtx_destroy(&sc->queue_mtx);
194 sema_destroy(&sc->cmd_sema);
195 return 0;
196 }
197
198 static int ips_pci_detach(device_t dev)
199 {
200 ips_softc_t *sc;
201 DEVICE_PRINTF(1, dev, "detaching ServeRaid\n");
202 sc = (ips_softc_t *) device_get_softc(dev);
203 if (sc->configured) {
204 sc->configured = 0;
205 ips_flush_cache(sc);
206 if(ips_adapter_free(sc))
207 return EBUSY;
208 ips_pci_free(sc);
209 bioq_flush(&sc->queue, NULL, ENXIO);
210 }
211 return 0;
212 }
213
214 static int ips_pci_shutdown(device_t dev)
215 {
216 ips_softc_t *sc = (ips_softc_t *) device_get_softc(dev);
217 if (sc->configured) {
218 ips_flush_cache(sc);
219 }
220 return 0;
221 }
222
223 static device_method_t ips_driver_methods[] = {
224 DEVMETHOD(device_probe, ips_pci_probe),
225 DEVMETHOD(device_attach, ips_pci_attach),
226 DEVMETHOD(device_detach, ips_pci_detach),
227 DEVMETHOD(device_shutdown, ips_pci_shutdown),
228 {0,0}
229 };
230
231 static driver_t ips_pci_driver = {
232 "ips",
233 ips_driver_methods,
234 sizeof(ips_softc_t),
235 };
236
237 static devclass_t ips_devclass;
238 DRIVER_MODULE(ips, pci, ips_pci_driver, ips_devclass, 0, 0);
Cache object: ed1de59c0ab1e61ff4f8ab1a6b7940e1
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