1 /* $NetBSD: aic6915var.h,v 1.5 2022/05/04 07:32:50 andvar Exp $ */
2
3 /*-
4 * Copyright (c) 2001 The NetBSD Foundation, Inc.
5 * All rights reserved.
6 *
7 * This code is derived from software contributed to The NetBSD Foundation
8 * by Jason R. Thorpe.
9 *
10 * Redistribution and use in source and binary forms, with or without
11 * modification, are permitted provided that the following conditions
12 * are met:
13 * 1. Redistributions of source code must retain the above copyright
14 * notice, this list of conditions and the following disclaimer.
15 * 2. Redistributions in binary form must reproduce the above copyright
16 * notice, this list of conditions and the following disclaimer in the
17 * documentation and/or other materials provided with the distribution.
18 *
19 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
20 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
21 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
22 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
23 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
24 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
25 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
26 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
27 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
28 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
29 * POSSIBILITY OF SUCH DAMAGE.
30 */
31
32 #ifndef _DEV_IC_AIC6915VAR_H_
33 #define _DEV_IC_AIC6915VAR_H_
34
35 #include <sys/callout.h>
36
37 /*
38 * Data structure definitions for the Adaptec AIC-6915 (``Starfire'')
39 * PCI 10/100 Ethernet controller driver.
40 */
41
42 /*
43 * Transmit descriptor list size.
44 */
45 #define SF_NTXDESC 256
46 #define SF_NTXDESC_MASK (SF_NTXDESC - 1)
47 #define SF_NEXTTX(x) ((x + 1) & SF_NTXDESC_MASK)
48
49 /*
50 * Transmit completion queue size. 1024 is a hardware requirement.
51 */
52 #define SF_NTCD 1024
53 #define SF_NTCD_MASK (SF_NTCD - 1)
54 #define SF_NEXTTCD(x) ((x + 1) & SF_NTCD_MASK)
55
56 /*
57 * Receive descriptor list size.
58 */
59 #define SF_NRXDESC 256
60 #define SF_NRXDESC_MASK (SF_NRXDESC - 1)
61 #define SF_NEXTRX(x) ((x + 1) & SF_NRXDESC_MASK)
62
63 /*
64 * Receive completion queue size. 1024 is a hardware requirement.
65 */
66 #define SF_NRCD 1024
67 #define SF_NRCD_MASK (SF_NRCD - 1)
68 #define SF_NEXTRCD(x) ((x + 1) & SF_NRCD_MASK)
69
70 /*
71 * Control structures are DMA to the Starfire chip. We allocate them in
72 * a single clump that maps to a single DMA segment to make several things
73 * easier.
74 */
75 struct sf_control_data {
76 /*
77 * The transmit descriptors.
78 */
79 struct sf_txdesc0 scd_txdescs[SF_NTXDESC];
80
81 /*
82 * The transmit completion queue entries.
83 */
84 struct sf_tcd scd_txcomp[SF_NTCD];
85
86 /*
87 * The receive buffer descriptors.
88 */
89 struct sf_rbd32 scd_rxbufdescs[SF_NRXDESC];
90
91 /*
92 * The receive completion queue entries.
93 */
94 struct sf_rcd_full scd_rxcomp[SF_NRCD];
95 };
96
97 #define SF_CDOFF(x) offsetof(struct sf_control_data, x)
98 #define SF_CDTXDOFF(x) SF_CDOFF(scd_txdescs[(x)])
99 #define SF_CDTXCOFF(x) SF_CDOFF(scd_txcomp[(x)])
100 #define SF_CDRXDOFF(x) SF_CDOFF(scd_rxbufdescs[(x)])
101 #define SF_CDRXCOFF(x) SF_CDOFF(scd_rxcomp[(x)])
102
103 /*
104 * Software state for transmit and receive descriptors.
105 */
106 struct sf_descsoft {
107 struct mbuf *ds_mbuf; /* head of mbuf chain */
108 bus_dmamap_t ds_dmamap; /* our DMA map */
109 };
110
111 /*
112 * Software state per device.
113 */
114 struct sf_softc {
115 device_t sc_dev; /* generic device information */
116 bus_space_tag_t sc_st; /* bus space tag */
117 bus_space_handle_t sc_sh; /* bus space handle */
118 bus_space_handle_t sc_sh_func; /* sub-handle for func regs */
119 bus_dma_tag_t sc_dmat; /* bus DMA tag */
120 struct ethercom sc_ethercom; /* ethernet common data */
121 int sc_iomapped; /* are we I/O mapped? */
122
123 struct mii_data sc_mii; /* MII/media information */
124 struct callout sc_tick_callout; /* MII callout */
125
126 bus_dmamap_t sc_cddmamap; /* control data DMA map */
127 #define sc_cddma sc_cddmamap->dm_segs[0].ds_addr
128
129 /*
130 * Software state for transmit and receive descriptors.
131 */
132 struct sf_descsoft sc_txsoft[SF_NTXDESC];
133 struct sf_descsoft sc_rxsoft[SF_NRXDESC];
134
135 /*
136 * Control data structures.
137 */
138 struct sf_control_data *sc_control_data;
139 #define sc_txdescs sc_control_data->scd_txdescs
140 #define sc_txcomp sc_control_data->scd_txcomp
141 #define sc_rxbufdescs sc_control_data->scd_rxbufdescs
142 #define sc_rxcomp sc_control_data->scd_rxcomp
143
144 int sc_txpending; /* number of Tx requests pending */
145
146 uint32_t sc_InterruptEn; /* prototype InterruptEn register */
147
148 uint32_t sc_TransmitFrameCSR; /* prototype TransmitFrameCSR reg */
149 uint32_t sc_TxDescQueueCtrl; /* prototype TxDescQueueCtrl reg */
150 int sc_txthresh; /* current Tx threshold */
151
152 uint32_t sc_MacConfig1; /* prototype MacConfig1 register */
153
154 uint32_t sc_RxAddressFilteringCtl;
155 };
156
157 #define SF_CDTXDADDR(sc, x) ((sc)->sc_cddma + SF_CDTXDOFF((x)))
158 #define SF_CDTXCADDR(sc, x) ((sc)->sc_cddma + SF_CDTXCOFF((x)))
159 #define SF_CDRXDADDR(sc, x) ((sc)->sc_cddma + SF_CDRXDOFF((x)))
160 #define SF_CDRXCADDR(sc, x) ((sc)->sc_cddma + SF_CDRXCOFF((x)))
161
162 #define SF_CDTXDSYNC(sc, x, ops) \
163 bus_dmamap_sync((sc)->sc_dmat, (sc)->sc_cddmamap, \
164 SF_CDTXDOFF((x)), sizeof(struct sf_txdesc0), (ops))
165
166 #define SF_CDTXCSYNC(sc, x, ops) \
167 bus_dmamap_sync((sc)->sc_dmat, (sc)->sc_cddmamap, \
168 SF_CDTXCOFF((x)), sizeof(struct sf_tcd), (ops))
169
170 #define SF_CDRXDSYNC(sc, x, ops) \
171 bus_dmamap_sync((sc)->sc_dmat, (sc)->sc_cddmamap, \
172 SF_CDRXDOFF((x)), sizeof(struct sf_rbd32), (ops))
173
174 #define SF_CDRXCSYNC(sc, x, ops) \
175 bus_dmamap_sync((sc)->sc_dmat, (sc)->sc_cddmamap, \
176 SF_CDRXCOFF((x)), sizeof(struct sf_rcd_full), (ops))
177
178 #define SF_INIT_RXDESC(sc, x) \
179 do { \
180 struct sf_descsoft *__ds = &sc->sc_rxsoft[(x)]; \
181 \
182 (sc)->sc_rxbufdescs[(x)].rbd32_addr = \
183 __ds->ds_dmamap->dm_segs[0].ds_addr | RBD_V; \
184 SF_CDRXDSYNC((sc), (x), BUS_DMASYNC_PREWRITE); \
185 } while (/*CONSTCOND*/0)
186
187 #ifdef _KERNEL
188 void sf_attach(struct sf_softc *);
189 int sf_intr(void *);
190 #endif /* _KERNEL */
191
192 #endif /* _DEV_IC_AIC6915VAR_H_ */
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