1 /* $OpenBSD: if_ti_pci.c,v 1.8 2024/05/24 06:02:57 jsg Exp $ */
2
3 /*
4 * Copyright (c) 1997, 1998, 1999
5 * Bill Paul <wpaul@ctr.columbia.edu>. All rights reserved.
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 * 3. All advertising materials mentioning features or use of this software
16 * must display the following acknowledgement:
17 * This product includes software developed by Bill Paul.
18 * 4. Neither the name of the author nor the names of any co-contributors
19 * may be used to endorse or promote products derived from this software
20 * without specific prior written permission.
21 *
22 * THIS SOFTWARE IS PROVIDED BY Bill Paul AND CONTRIBUTORS ``AS IS'' AND
23 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
24 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
25 * ARE DISCLAIMED. IN NO EVENT SHALL Bill Paul OR THE VOICES IN HIS HEAD
26 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
27 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
28 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
29 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
30 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
31 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
32 * THE POSSIBILITY OF SUCH DAMAGE.
33 *
34 * $FreeBSD: src/sys/pci/if_ti.c,v 1.25 2000/01/18 00:26:29 wpaul Exp $
35 */
36
37 /*
38 * Alteon Networks Tigon PCI gigabit ethernet driver for OpenBSD.
39 *
40 * Written by Bill Paul <wpaul@ctr.columbia.edu>
41 * Electrical Engineering Department
42 * Columbia University, New York City
43 */
44
45 /*
46 * The Alteon Networks Tigon chip contains an embedded R4000 CPU,
47 * gigabit MAC, dual DMA channels and a PCI interface unit. NICs
48 * using the Tigon may have anywhere from 512K to 2MB of SRAM. The
49 * Tigon supports hardware IP, TCP and UCP checksumming, multicast
50 * filtering and jumbo (9014 byte) frames. The hardware is largely
51 * controlled by firmware, which must be loaded into the NIC during
52 * initialization.
53 *
54 * The Tigon 2 contains 2 R4000 CPUs and requires a newer firmware
55 * revision, which supports new features such as extended commands,
56 * extended jumbo receive ring descriptors and a mini receive ring.
57 *
58 * Alteon Networks is to be commended for releasing such a vast amount
59 * of development material for the Tigon NIC without requiring an NDA
60 * (although they really should have done it a long time ago). With
61 * any luck, the other vendors will finally wise up and follow Alteon's
62 * stellar example.
63 *
64 * The following people deserve special thanks:
65 * - Terry Murphy of 3Com, for providing a 3c985 Tigon 1 board
66 * for testing
67 * - Raymond Lee of Netgear, for providing a pair of Netgear
68 * GA620 Tigon 2 boards for testing
69 * - Ulf Zimmermann, for bringing the GA260 to my attention and
70 * convincing me to write this driver.
71 * - Andrew Gallatin for providing FreeBSD/Alpha support.
72 */
73
74 #include <sys/param.h>
75 #include <sys/device.h>
76 #include <sys/systm.h>
77
78 #include <net/if.h>
79 #include <net/if_media.h>
80
81 #include <netinet/in.h>
82 #include <netinet/if_ether.h>
83
84 #include <dev/pci/pcireg.h>
85 #include <dev/pci/pcivar.h>
86 #include <dev/pci/pcidevs.h>
87
88 #include <dev/ic/tireg.h>
89 #include <dev/ic/tivar.h>
90
91 int ti_pci_match(struct device *, void *, void *);
92 void ti_pci_attach(struct device *, struct device *, void *);
93
94 const struct cfattach ti_pci_ca = {
95 sizeof(struct ti_softc), ti_pci_match, ti_pci_attach
96 };
97
98 const struct pci_matchid ti_devices[] = {
99 { PCI_VENDOR_NETGEAR, PCI_PRODUCT_NETGEAR_GA620 },
100 { PCI_VENDOR_NETGEAR, PCI_PRODUCT_NETGEAR_GA620T },
101 { PCI_VENDOR_ALTEON, PCI_PRODUCT_ALTEON_ACENIC },
102 { PCI_VENDOR_ALTEON, PCI_PRODUCT_ALTEON_ACENICT },
103 { PCI_VENDOR_3COM, PCI_PRODUCT_3COM_3C985 },
104 { PCI_VENDOR_SGI, PCI_PRODUCT_SGI_TIGON },
105 { PCI_VENDOR_DEC, PCI_PRODUCT_DEC_PN9000SX }
106 };
107
108 int
ti_pci_match(struct device * parent,void * match,void * aux)109 ti_pci_match(struct device *parent, void *match, void *aux)
110 {
111 return (pci_matchbyid(aux, ti_devices, nitems(ti_devices)));
112 }
113
114 void
ti_pci_attach(struct device * parent,struct device * self,void * aux)115 ti_pci_attach(struct device *parent, struct device *self, void *aux)
116 {
117 struct ti_softc *sc = (struct ti_softc *)self;
118 struct pci_attach_args *pa = aux;
119 pci_chipset_tag_t pc = pa->pa_pc;
120 pci_intr_handle_t ih;
121 const char *intrstr = NULL;
122 bus_size_t size;
123
124 /*
125 * Map control/status registers.
126 */
127 if (pci_mapreg_map(pa, TI_PCI_LOMEM,
128 PCI_MAPREG_TYPE_MEM | PCI_MAPREG_MEM_TYPE_32BIT, 0,
129 &sc->ti_btag, &sc->ti_bhandle, NULL, &size, 0)) {
130 printf(": can't map registers\n");
131 return;
132 }
133
134 sc->sc_dmatag = pa->pa_dmat;
135
136 if (pci_intr_map(pa, &ih)) {
137 printf(": can't map interrupt\n");
138 goto unmap;
139 }
140 intrstr = pci_intr_string(pc, ih);
141 sc->ti_intrhand = pci_intr_establish(pc, ih, IPL_NET, ti_intr, sc,
142 self->dv_xname);
143 if (sc->ti_intrhand == NULL) {
144 printf(": can't establish interrupt");
145 if (intrstr != NULL)
146 printf(" at %s", intrstr);
147 printf("\n");
148 goto unmap;
149 }
150 printf(": %s", intrstr);
151
152 /*
153 * We really need a better way to tell a 1000baseTX card
154 * from a 1000baseSX one, since in theory there could be
155 * OEMed 1000baseTX cards from lame vendors who aren't
156 * clever enough to change the PCI ID. For the moment
157 * though, the AceNIC is the only copper card available.
158 */
159 if (PCI_VENDOR(pa->pa_id) == PCI_VENDOR_ALTEON &&
160 PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_ALTEON_ACENICT)
161 sc->ti_copper = 1;
162 /* Ok, it's not the only copper card available */
163 if (PCI_VENDOR(pa->pa_id) == PCI_VENDOR_NETGEAR &&
164 PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_NETGEAR_GA620T)
165 sc->ti_copper = 1;
166
167 if (ti_attach(sc) == 0)
168 return;
169
170 pci_intr_disestablish(pc, sc->ti_intrhand);
171
172 unmap:
173 bus_space_unmap(sc->ti_btag, sc->ti_bhandle, size);
174 }
175