1/*-
2 * Copyright (c) 2013-2014 Bjoern A. Zeeb
3 * All rights reserved.
4 *
5 * This software was developed by SRI International and the University of
6 * Cambridge Computer Laboratory under DARPA/AFRL contract FA8750-11-C-0249
7 * ("MRC2"), as part of the DARPA MRC research programme.
8 *
9 * Redistribution and use in source and binary forms, with or without
10 * modification, are permitted provided that the following conditions
11 * are met:
12 * 1. Redistributions of source code must retain the above copyright
13 * notice, this list of conditions and the following disclaimer.
14 * 2. Redistributions in binary form must reproduce the above copyright
15 * notice, this list of conditions and the following disclaimer in the
16 * documentation and/or other materials provided with the distribution.
17 *
18 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
19 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
20 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
21 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
22 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
23 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
24 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
25 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
26 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
27 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
28 * SUCH DAMAGE.
29 *
30 * This driver is modelled after atse(4). We need to seriously reduce the
31 * per-driver code we have to write^wcopy & paste.
32 */
33
34#include <sys/cdefs.h>
| 1/*-
2 * Copyright (c) 2013-2014 Bjoern A. Zeeb
3 * All rights reserved.
4 *
5 * This software was developed by SRI International and the University of
6 * Cambridge Computer Laboratory under DARPA/AFRL contract FA8750-11-C-0249
7 * ("MRC2"), as part of the DARPA MRC research programme.
8 *
9 * Redistribution and use in source and binary forms, with or without
10 * modification, are permitted provided that the following conditions
11 * are met:
12 * 1. Redistributions of source code must retain the above copyright
13 * notice, this list of conditions and the following disclaimer.
14 * 2. Redistributions in binary form must reproduce the above copyright
15 * notice, this list of conditions and the following disclaimer in the
16 * documentation and/or other materials provided with the distribution.
17 *
18 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
19 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
20 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
21 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
22 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
23 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
24 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
25 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
26 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
27 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
28 * SUCH DAMAGE.
29 *
30 * This driver is modelled after atse(4). We need to seriously reduce the
31 * per-driver code we have to write^wcopy & paste.
32 */
33
34#include <sys/cdefs.h>
|
35__FBSDID("$FreeBSD: head/sys/dev/netfpga10g/nf10bmac/if_nf10bmac_fdt.c 264601 2014-04-17 12:33:26Z bz $");
| 35__FBSDID("$FreeBSD: head/sys/dev/netfpga10g/nf10bmac/if_nf10bmac_fdt.c 265766 2014-05-09 12:59:38Z bz $");
|
36
37#include <sys/param.h>
38#include <sys/bus.h>
39#include <sys/kernel.h>
40#include <sys/module.h>
41#include <sys/rman.h>
42#include <sys/socket.h>
43#include <sys/systm.h>
44
45#include <machine/bus.h>
46#include <machine/resource.h>
47
48#include <net/ethernet.h>
49#include <net/if.h>
50#include <net/if_media.h>
51#include <net/if_var.h>
52
53#include <dev/fdt/fdt_common.h>
54#include <dev/ofw/openfirm.h>
55#include <dev/ofw/ofw_bus.h>
56#include <dev/ofw/ofw_bus_subr.h>
57
58#include "if_nf10bmacreg.h"
59
60static int
61nf10bmac_probe_fdt(device_t dev)
62{
63
64 if (!ofw_bus_status_okay(dev))
65 return (ENXIO);
66
67 if (ofw_bus_is_compatible(dev, "netfpag10g,nf10bmac")) {
68 device_set_desc(dev, "NetFPGA-10G Embedded CPU Ethernet Core");
69 return (BUS_PROBE_DEFAULT);
70 }
71
72 return (ENXIO);
73}
74
75static int
76nf10bmac_attach_fdt(device_t dev)
77{
78 struct nf10bmac_softc *sc;
79 int error;
80
81 sc = device_get_softc(dev);
82 sc->nf10bmac_dev = dev;
83 sc->nf10bmac_unit = device_get_unit(dev);
84
85 /*
86 * FDT lists our resources. For convenience we use three different
87 * mappings. We need to attach them in the oder specified in .dts:
| 36
37#include <sys/param.h>
38#include <sys/bus.h>
39#include <sys/kernel.h>
40#include <sys/module.h>
41#include <sys/rman.h>
42#include <sys/socket.h>
43#include <sys/systm.h>
44
45#include <machine/bus.h>
46#include <machine/resource.h>
47
48#include <net/ethernet.h>
49#include <net/if.h>
50#include <net/if_media.h>
51#include <net/if_var.h>
52
53#include <dev/fdt/fdt_common.h>
54#include <dev/ofw/openfirm.h>
55#include <dev/ofw/ofw_bus.h>
56#include <dev/ofw/ofw_bus_subr.h>
57
58#include "if_nf10bmacreg.h"
59
60static int
61nf10bmac_probe_fdt(device_t dev)
62{
63
64 if (!ofw_bus_status_okay(dev))
65 return (ENXIO);
66
67 if (ofw_bus_is_compatible(dev, "netfpag10g,nf10bmac")) {
68 device_set_desc(dev, "NetFPGA-10G Embedded CPU Ethernet Core");
69 return (BUS_PROBE_DEFAULT);
70 }
71
72 return (ENXIO);
73}
74
75static int
76nf10bmac_attach_fdt(device_t dev)
77{
78 struct nf10bmac_softc *sc;
79 int error;
80
81 sc = device_get_softc(dev);
82 sc->nf10bmac_dev = dev;
83 sc->nf10bmac_unit = device_get_unit(dev);
84
85 /*
86 * FDT lists our resources. For convenience we use three different
87 * mappings. We need to attach them in the oder specified in .dts:
|
88 * TX (size 0xc), RX (size 0xc), LOOP (size 0x4).
| 88 * LOOP (size 0x1f), TX (0x2f), RX (0x2f), INTR (0xf).
|
89 */
90
| 89 */
90
|
| 91 /*
92 * LOOP memory region (this could be a general control region).
93 * 0x00: 32bit register to enable a Y-"lopback".
94 */
95 sc->nf10bmac_ctrl_rid = 0;
96 sc->nf10bmac_ctrl_res = bus_alloc_resource_any(dev, SYS_RES_MEMORY,
97 &sc->nf10bmac_ctrl_rid, RF_ACTIVE);
98 if (sc->nf10bmac_ctrl_res == NULL) {
99 device_printf(dev, "failed to map memory for CTRL region\n");
100 error = ENXIO;
101 goto err;
102 }
103 if (bootverbose)
104 device_printf(sc->nf10bmac_dev, "CTRL region at mem %p-%p\n",
105 (void *)rman_get_start(sc->nf10bmac_ctrl_res),
106 (void *)(rman_get_start(sc->nf10bmac_ctrl_res) +
107 rman_get_size(sc->nf10bmac_ctrl_res)));
108
|
91 /*
92 * TX and TX metadata FIFO memory region.
93 * 0x00: 32bit FIFO data,
| 109 /*
110 * TX and TX metadata FIFO memory region.
111 * 0x00: 32bit FIFO data,
|
94 * 0x04: 32bit FIFO metadata,
95 * 0x08: 32bit packet length.
| 112 * 0x08: 32bit FIFO metadata,
113 * 0x10: 32bit packet length.
|
96 */
| 114 */
|
97 sc->nf10bmac_tx_mem_rid = 0;
| 115 sc->nf10bmac_tx_mem_rid = 1;
|
98 sc->nf10bmac_tx_mem_res = bus_alloc_resource_any(dev, SYS_RES_MEMORY,
99 &sc->nf10bmac_tx_mem_rid, RF_ACTIVE);
100 if (sc->nf10bmac_tx_mem_res == NULL) {
101 device_printf(dev, "failed to map memory for TX FIFO\n");
102 error = ENXIO;
103 goto err;
104 }
105 if (bootverbose)
106 device_printf(sc->nf10bmac_dev, "TX FIFO at mem %p-%p\n",
107 (void *)rman_get_start(sc->nf10bmac_tx_mem_res),
108 (void *)(rman_get_start(sc->nf10bmac_tx_mem_res) +
109 rman_get_size(sc->nf10bmac_tx_mem_res)));
110
111 /*
112 * RX and RXC metadata FIFO memory region.
113 * 0x00: 32bit FIFO data,
| 116 sc->nf10bmac_tx_mem_res = bus_alloc_resource_any(dev, SYS_RES_MEMORY,
117 &sc->nf10bmac_tx_mem_rid, RF_ACTIVE);
118 if (sc->nf10bmac_tx_mem_res == NULL) {
119 device_printf(dev, "failed to map memory for TX FIFO\n");
120 error = ENXIO;
121 goto err;
122 }
123 if (bootverbose)
124 device_printf(sc->nf10bmac_dev, "TX FIFO at mem %p-%p\n",
125 (void *)rman_get_start(sc->nf10bmac_tx_mem_res),
126 (void *)(rman_get_start(sc->nf10bmac_tx_mem_res) +
127 rman_get_size(sc->nf10bmac_tx_mem_res)));
128
129 /*
130 * RX and RXC metadata FIFO memory region.
131 * 0x00: 32bit FIFO data,
|
114 * 0x04: 32bit FIFO metadata,
115 * 0x08: 32bit packet length.
| 132 * 0x08: 32bit FIFO metadata,
133 * 0x10: 32bit packet length.
|
116 */
| 134 */
|
117 sc->nf10bmac_rx_mem_rid = 1;
| 135 sc->nf10bmac_rx_mem_rid = 2;
|
118 sc->nf10bmac_rx_mem_res = bus_alloc_resource_any(dev, SYS_RES_MEMORY,
119 &sc->nf10bmac_rx_mem_rid, RF_ACTIVE);
120 if (sc->nf10bmac_rx_mem_res == NULL) {
121 device_printf(dev, "failed to map memory for RX FIFO\n");
122 error = ENXIO;
123 goto err;
124 }
125 if (bootverbose)
126 device_printf(sc->nf10bmac_dev, "RX FIFO at mem %p-%p\n",
127 (void *)rman_get_start(sc->nf10bmac_rx_mem_res),
128 (void *)(rman_get_start(sc->nf10bmac_rx_mem_res) +
129 rman_get_size(sc->nf10bmac_rx_mem_res)));
130
131 /*
| 136 sc->nf10bmac_rx_mem_res = bus_alloc_resource_any(dev, SYS_RES_MEMORY,
137 &sc->nf10bmac_rx_mem_rid, RF_ACTIVE);
138 if (sc->nf10bmac_rx_mem_res == NULL) {
139 device_printf(dev, "failed to map memory for RX FIFO\n");
140 error = ENXIO;
141 goto err;
142 }
143 if (bootverbose)
144 device_printf(sc->nf10bmac_dev, "RX FIFO at mem %p-%p\n",
145 (void *)rman_get_start(sc->nf10bmac_rx_mem_res),
146 (void *)(rman_get_start(sc->nf10bmac_rx_mem_res) +
147 rman_get_size(sc->nf10bmac_rx_mem_res)));
148
149 /*
|
132 * LOOP memory region (this could be a general control region).
133 * 0x00: 32bit register to enable a Y-"lopback".
| 150 * Interrupt handling registers.
151 * 0x00: 32bit register to clear (and disable) the RX interrupt.
152 * 0x08: 32bit register to enable or disable the RX interrupt.
|
134 */
| 153 */
|
135 sc->nf10bmac_mem_rid = 2;
136 sc->nf10bmac_mem_res = bus_alloc_resource_any(dev, SYS_RES_MEMORY,
137 &sc->nf10bmac_mem_rid, RF_ACTIVE);
138 if (sc->nf10bmac_mem_res == NULL) {
139 device_printf(dev, "failed to map memory for CTRL region\n");
| 154 sc->nf10bmac_intr_rid = 3;
155 sc->nf10bmac_intr_res = bus_alloc_resource_any(dev, SYS_RES_MEMORY,
156 &sc->nf10bmac_intr_rid, RF_ACTIVE);
157 if (sc->nf10bmac_intr_res == NULL) {
158 device_printf(dev, "failed to map memory for INTR region\n");
|
140 error = ENXIO;
141 goto err;
142 }
143 if (bootverbose)
| 159 error = ENXIO;
160 goto err;
161 }
162 if (bootverbose)
|
144 device_printf(sc->nf10bmac_dev, "CTRL region at mem %p-%p\n",
145 (void *)rman_get_start(sc->nf10bmac_mem_res),
146 (void *)(rman_get_start(sc->nf10bmac_mem_res) +
147 rman_get_size(sc->nf10bmac_mem_res)));
| 163 device_printf(sc->nf10bmac_dev, "INTR region at mem %p-%p\n",
164 (void *)rman_get_start(sc->nf10bmac_intr_res),
165 (void *)(rman_get_start(sc->nf10bmac_intr_res) +
166 rman_get_size(sc->nf10bmac_intr_res)));
|
148
| 167
|
| 168 /* (Optional) RX and TX IRQ. */
169 sc->nf10bmac_rx_irq_rid = 0;
170 sc->nf10bmac_rx_irq_res = bus_alloc_resource_any(dev, SYS_RES_IRQ,
171 &sc->nf10bmac_rx_irq_rid, RF_ACTIVE | RF_SHAREABLE);
172
|
149 error = nf10bmac_attach(dev);
150 if (error)
151 goto err;
152
153 return (0);
154
155err:
156 /* Cleanup. */
157 nf10bmac_detach_resources(dev);
158
159 return (error);
160}
161
162static device_method_t nf10bmac_methods_fdt[] = {
163 /* Device interface */
164 DEVMETHOD(device_probe, nf10bmac_probe_fdt),
165 DEVMETHOD(device_attach, nf10bmac_attach_fdt),
166 DEVMETHOD(device_detach, nf10bmac_detach_dev),
167
168 DEVMETHOD_END
169};
170
171static driver_t nf10bmac_driver_fdt = {
172 "nf10bmac",
173 nf10bmac_methods_fdt,
174 sizeof(struct nf10bmac_softc)
175};
176
177DRIVER_MODULE(nf10bmac, simplebus, nf10bmac_driver_fdt, nf10bmac_devclass, 0,0);
178
179/* end */
| 173 error = nf10bmac_attach(dev);
174 if (error)
175 goto err;
176
177 return (0);
178
179err:
180 /* Cleanup. */
181 nf10bmac_detach_resources(dev);
182
183 return (error);
184}
185
186static device_method_t nf10bmac_methods_fdt[] = {
187 /* Device interface */
188 DEVMETHOD(device_probe, nf10bmac_probe_fdt),
189 DEVMETHOD(device_attach, nf10bmac_attach_fdt),
190 DEVMETHOD(device_detach, nf10bmac_detach_dev),
191
192 DEVMETHOD_END
193};
194
195static driver_t nf10bmac_driver_fdt = {
196 "nf10bmac",
197 nf10bmac_methods_fdt,
198 sizeof(struct nf10bmac_softc)
199};
200
201DRIVER_MODULE(nf10bmac, simplebus, nf10bmac_driver_fdt, nf10bmac_devclass, 0,0);
202
203/* end */
|