Line data Source code
1 : /* $OpenBSD: qla_pci.c,v 1.8 2014/04/03 20:01:47 brad Exp $ */
2 :
3 : /*
4 : * Copyright (c) 2011 David Gwynne <dlg@openbsd.org>
5 : * Copyright (c) 2013, 2014 Jonathan Matthew <jmatthew@openbsd.org>
6 : *
7 : * Permission to use, copy, modify, and distribute this software for any
8 : * purpose with or without fee is hereby granted, provided that the above
9 : * copyright notice and this permission notice appear in all copies.
10 : *
11 : * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
12 : * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
13 : * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
14 : * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
15 : * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
16 : * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
17 : * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
18 : */
19 :
20 : #include "bio.h"
21 :
22 : #include <sys/param.h>
23 : #include <sys/systm.h>
24 : #include <sys/kernel.h>
25 : #include <sys/malloc.h>
26 : #include <sys/device.h>
27 : #include <sys/sensors.h>
28 : #include <sys/rwlock.h>
29 :
30 : #include <machine/bus.h>
31 :
32 : #include <dev/pci/pcireg.h>
33 : #include <dev/pci/pcivar.h>
34 : #include <dev/pci/pcidevs.h>
35 :
36 : #ifdef __sparc64__
37 : #include <dev/ofw/openfirm.h>
38 : #endif
39 :
40 : #include <scsi/scsi_all.h>
41 : #include <scsi/scsiconf.h>
42 :
43 : #include <dev/ic/qlareg.h>
44 : #include <dev/ic/qlavar.h>
45 :
46 : #define QLA_PCI_MEM_BAR 0x14
47 : #define QLA_PCI_IO_BAR 0x10
48 :
49 : int qla_pci_match(struct device *, void *, void *);
50 : void qla_pci_attach(struct device *, struct device *, void *);
51 : int qla_pci_detach(struct device *, int);
52 :
53 : struct qla_pci_softc {
54 : struct qla_softc psc_qla;
55 :
56 : pci_chipset_tag_t psc_pc;
57 : pcitag_t psc_tag;
58 :
59 : void *psc_ih;
60 : };
61 :
62 : struct cfattach qla_pci_ca = {
63 : sizeof(struct qla_pci_softc),
64 : qla_pci_match,
65 : qla_pci_attach
66 : };
67 :
68 : #define PREAD(s, r) pci_conf_read((s)->psc_pc, (s)->psc_tag, (r))
69 : #define PWRITE(s, r, v) pci_conf_write((s)->psc_pc, (s)->psc_tag, (r), (v))
70 :
71 : static const struct pci_matchid qla_devices[] = {
72 : { PCI_VENDOR_QLOGIC, PCI_PRODUCT_QLOGIC_ISP2100 },
73 : { PCI_VENDOR_QLOGIC, PCI_PRODUCT_QLOGIC_ISP2200 },
74 : { PCI_VENDOR_QLOGIC, PCI_PRODUCT_QLOGIC_ISP2300 },
75 : { PCI_VENDOR_QLOGIC, PCI_PRODUCT_QLOGIC_ISP2312 },
76 : { PCI_VENDOR_QLOGIC, PCI_PRODUCT_QLOGIC_ISP2322 },
77 : { PCI_VENDOR_QLOGIC, PCI_PRODUCT_QLOGIC_ISP6312 },
78 : { PCI_VENDOR_QLOGIC, PCI_PRODUCT_QLOGIC_ISP6322 },
79 : };
80 :
81 : int
82 0 : qla_pci_match(struct device *parent, void *match, void *aux)
83 : {
84 0 : return (pci_matchbyid(aux, qla_devices, nitems(qla_devices)) * 2);
85 : }
86 :
87 : void
88 0 : qla_pci_attach(struct device *parent, struct device *self, void *aux)
89 : {
90 0 : struct qla_pci_softc *psc = (void *)self;
91 0 : struct qla_softc *sc = &psc->psc_qla;
92 0 : struct pci_attach_args *pa = aux;
93 0 : pci_intr_handle_t ih;
94 : const char *intrstr;
95 : u_int32_t pcictl;
96 : #ifdef __sparc64__
97 : u_int64_t wwn;
98 : int node;
99 : #endif
100 :
101 0 : pcireg_t bars[] = { QLA_PCI_MEM_BAR, QLA_PCI_IO_BAR };
102 : pcireg_t memtype;
103 : int r;
104 :
105 0 : psc->psc_pc = pa->pa_pc;
106 0 : psc->psc_tag = pa->pa_tag;
107 0 : psc->psc_ih = NULL;
108 0 : sc->sc_dmat = pa->pa_dmat;
109 0 : sc->sc_ios = 0;
110 :
111 0 : for (r = 0; r < nitems(bars); r++) {
112 0 : memtype = pci_mapreg_type(psc->psc_pc, psc->psc_tag, bars[r]);
113 0 : if (pci_mapreg_map(pa, bars[r], memtype, 0,
114 0 : &sc->sc_iot, &sc->sc_ioh, NULL, &sc->sc_ios, 0) == 0)
115 : break;
116 :
117 0 : sc->sc_ios = 0;
118 : }
119 0 : if (sc->sc_ios == 0) {
120 0 : printf(": unable to map registers\n");
121 0 : return;
122 : }
123 :
124 0 : if (pci_intr_map(pa, &ih)) {
125 0 : printf(": unable to map interrupt\n");
126 0 : goto unmap;
127 : }
128 0 : intrstr = pci_intr_string(psc->psc_pc, ih);
129 0 : psc->psc_ih = pci_intr_establish(psc->psc_pc, ih, IPL_BIO,
130 0 : qla_intr, sc, DEVNAME(sc));
131 0 : if (psc->psc_ih == NULL) {
132 0 : printf(": unable to establish interrupt");
133 0 : if (intrstr != NULL)
134 0 : printf(" at %s", intrstr);
135 0 : printf("\n");
136 0 : goto deintr;
137 : }
138 :
139 0 : printf(": %s\n", intrstr);
140 :
141 0 : pcictl = pci_conf_read(pa->pa_pc, pa->pa_tag, PCI_COMMAND_STATUS_REG);
142 0 : pcictl |= PCI_COMMAND_INVALIDATE_ENABLE |
143 : PCI_COMMAND_PARITY_ENABLE | PCI_COMMAND_SERR_ENABLE;
144 : /* fw manual says to enable bus master here, then disable it while
145 : * resetting.. hm.
146 : */
147 0 : pci_conf_write(pa->pa_pc, pa->pa_tag, PCI_COMMAND_STATUS_REG, pcictl);
148 :
149 0 : pcictl = pci_conf_read(pa->pa_pc, pa->pa_tag, PCI_BHLC_REG);
150 0 : pcictl &= ~(PCI_LATTIMER_MASK << PCI_LATTIMER_SHIFT);
151 0 : pcictl &= ~(PCI_CACHELINE_MASK << PCI_CACHELINE_SHIFT);
152 0 : pcictl |= (0x80 << PCI_LATTIMER_SHIFT);
153 0 : pcictl |= (0x10 << PCI_CACHELINE_SHIFT);
154 0 : pci_conf_write(pa->pa_pc, pa->pa_tag, PCI_BHLC_REG, pcictl);
155 :
156 0 : pcictl = pci_conf_read(pa->pa_pc, pa->pa_tag, PCI_ROM_REG);
157 0 : pcictl &= ~1;
158 0 : pci_conf_write(pa->pa_pc, pa->pa_tag, PCI_ROM_REG, pcictl);
159 :
160 0 : switch (PCI_PRODUCT(pa->pa_id)) {
161 : case PCI_PRODUCT_QLOGIC_ISP2100:
162 0 : sc->sc_isp_gen = QLA_GEN_ISP2100;
163 0 : sc->sc_isp_type = QLA_ISP2100;
164 0 : break;
165 :
166 : case PCI_PRODUCT_QLOGIC_ISP2200:
167 0 : sc->sc_isp_gen = QLA_GEN_ISP2200;
168 0 : sc->sc_isp_type = QLA_ISP2200;
169 0 : break;
170 :
171 : case PCI_PRODUCT_QLOGIC_ISP2300:
172 0 : sc->sc_isp_type = QLA_ISP2300;
173 0 : sc->sc_isp_gen = QLA_GEN_ISP23XX;
174 0 : break;
175 :
176 : case PCI_PRODUCT_QLOGIC_ISP2312:
177 : case PCI_PRODUCT_QLOGIC_ISP6312:
178 0 : sc->sc_isp_type = QLA_ISP2312;
179 0 : sc->sc_isp_gen = QLA_GEN_ISP23XX;
180 0 : break;
181 :
182 : case PCI_PRODUCT_QLOGIC_ISP2322:
183 : case PCI_PRODUCT_QLOGIC_ISP6322:
184 0 : sc->sc_isp_type = QLA_ISP2322;
185 0 : sc->sc_isp_gen = QLA_GEN_ISP23XX;
186 0 : break;
187 :
188 : default:
189 0 : printf("unknown pci id %x", pa->pa_id);
190 0 : return;
191 : }
192 :
193 : #ifdef __sparc64__
194 : node = PCITAG_NODE(pa->pa_tag);
195 : if (OF_getprop(node, "port-wwn", &wwn, sizeof(wwn)) == sizeof(wwn))
196 : sc->sc_port_name = wwn;
197 : if (OF_getprop(node, "node-wwn", &wwn, sizeof(wwn)) == sizeof(wwn))
198 : sc->sc_node_name = wwn;
199 : #endif
200 :
201 0 : sc->sc_port = pa->pa_function;
202 :
203 0 : if (qla_attach(sc) != 0) {
204 : /* error printed by qla_attach */
205 : goto deintr;
206 : }
207 :
208 0 : return;
209 :
210 : deintr:
211 0 : pci_intr_disestablish(psc->psc_pc, psc->psc_ih);
212 0 : psc->psc_ih = NULL;
213 : unmap:
214 0 : bus_space_unmap(sc->sc_iot, sc->sc_ioh, sc->sc_ios);
215 0 : sc->sc_ios = 0;
216 0 : }
217 :
218 : int
219 0 : qla_pci_detach(struct device *self, int flags)
220 : {
221 0 : struct qla_pci_softc *psc = (struct qla_pci_softc *)self;
222 0 : struct qla_softc *sc = &psc->psc_qla;
223 : int rv;
224 :
225 0 : if (psc->psc_ih == NULL) {
226 : /* we didnt attach properly, so nothing to detach */
227 0 : return (0);
228 : }
229 :
230 0 : rv = qla_detach(sc, flags);
231 0 : if (rv != 0)
232 0 : return (rv);
233 :
234 0 : pci_intr_disestablish(psc->psc_pc, psc->psc_ih);
235 0 : psc->psc_ih = NULL;
236 :
237 0 : bus_space_unmap(sc->sc_iot, sc->sc_ioh, sc->sc_ios);
238 0 : sc->sc_ios = 0;
239 :
240 0 : return (0);
241 0 : }
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