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authorFinn Thain <fthain@telegraphics.com.au>2005-08-20 01:53:22 -0400
committerJeff Garzik <jgarzik@pobox.com>2005-08-23 01:32:12 -0400
commitefcce839360fb3a7b6dedeacaec80f68b0f2d052 (patch)
tree7ddeeb994619d0c29f3a9c7ac923a376dec413f5 /drivers
parent2600636065406dc14948ac2d2913c66c51be80d5 (diff)
[PATCH] macsonic/jazzsonic network drivers update
The purpose of this patch: - Adopt the DMA API (jazzsonic, macsonic & core driver). - Adopt the driver model (macsonic). This part was cribbed from jazzsonic. As a consequence, macsonic once again works as a module. Driver model is also used by the DMA calls. - Support 16 bit cards (macsonic & core driver, also affects jazzsonic) This code was adapted from the mac68k linux 2.2 kernel, where it has languished for a long time. - Support more 32-bit mac cards (macsonic) Also from mac68k repo. - Zero-copy buffer handling (core driver) Provides a nice performance improvement. The new algorithm incidentally helped to replace the old Jazz DMA code. The patch was tested on a variety of macs (several 32-bit quadra built-in NICs, a 16-bit LC PDS NIC and a 16-bit comm-slot NIC), and also on MIPS Jazz. Signed-off-by: Finn Thain <fthain@telegraphics.com.au> Acked-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de> Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
Diffstat (limited to 'drivers')
-rw-r--r--drivers/net/Space.c4
-rw-r--r--drivers/net/jazzsonic.c186
-rw-r--r--drivers/net/macsonic.c538
-rw-r--r--drivers/net/sonic.c676
-rw-r--r--drivers/net/sonic.h460
5 files changed, 972 insertions, 892 deletions
diff --git a/drivers/net/Space.c b/drivers/net/Space.c
index b28e5fde0b9e..60304f7e7e5b 100644
--- a/drivers/net/Space.c
+++ b/drivers/net/Space.c
@@ -87,7 +87,6 @@ extern struct net_device *mvme147lance_probe(int unit);
87extern struct net_device *tc515_probe(int unit); 87extern struct net_device *tc515_probe(int unit);
88extern struct net_device *lance_probe(int unit); 88extern struct net_device *lance_probe(int unit);
89extern struct net_device *mace_probe(int unit); 89extern struct net_device *mace_probe(int unit);
90extern struct net_device *macsonic_probe(int unit);
91extern struct net_device *mac8390_probe(int unit); 90extern struct net_device *mac8390_probe(int unit);
92extern struct net_device *mac89x0_probe(int unit); 91extern struct net_device *mac89x0_probe(int unit);
93extern struct net_device *mc32_probe(int unit); 92extern struct net_device *mc32_probe(int unit);
@@ -284,9 +283,6 @@ static struct devprobe2 m68k_probes[] __initdata = {
284#ifdef CONFIG_MACMACE /* Mac 68k Quadra AV builtin Ethernet */ 283#ifdef CONFIG_MACMACE /* Mac 68k Quadra AV builtin Ethernet */
285 {mace_probe, 0}, 284 {mace_probe, 0},
286#endif 285#endif
287#ifdef CONFIG_MACSONIC /* Mac SONIC-based Ethernet of all sorts */
288 {macsonic_probe, 0},
289#endif
290#ifdef CONFIG_MAC8390 /* NuBus NS8390-based cards */ 286#ifdef CONFIG_MAC8390 /* NuBus NS8390-based cards */
291 {mac8390_probe, 0}, 287 {mac8390_probe, 0},
292#endif 288#endif
diff --git a/drivers/net/jazzsonic.c b/drivers/net/jazzsonic.c
index 7fec613e1675..8423cb6875f0 100644
--- a/drivers/net/jazzsonic.c
+++ b/drivers/net/jazzsonic.c
@@ -1,5 +1,10 @@
1/* 1/*
2 * sonic.c 2 * jazzsonic.c
3 *
4 * (C) 2005 Finn Thain
5 *
6 * Converted to DMA API, and (from the mac68k project) introduced
7 * dhd's support for 16-bit cards.
3 * 8 *
4 * (C) 1996,1998 by Thomas Bogendoerfer (tsbogend@alpha.franken.de) 9 * (C) 1996,1998 by Thomas Bogendoerfer (tsbogend@alpha.franken.de)
5 * 10 *
@@ -28,8 +33,8 @@
28#include <linux/netdevice.h> 33#include <linux/netdevice.h>
29#include <linux/etherdevice.h> 34#include <linux/etherdevice.h>
30#include <linux/skbuff.h> 35#include <linux/skbuff.h>
31#include <linux/bitops.h>
32#include <linux/device.h> 36#include <linux/device.h>
37#include <linux/dma-mapping.h>
33 38
34#include <asm/bootinfo.h> 39#include <asm/bootinfo.h>
35#include <asm/system.h> 40#include <asm/system.h>
@@ -44,22 +49,20 @@ static struct platform_device *jazz_sonic_device;
44 49
45#define SONIC_MEM_SIZE 0x100 50#define SONIC_MEM_SIZE 0x100
46 51
47#define SREGS_PAD(n) u16 n;
48
49#include "sonic.h" 52#include "sonic.h"
50 53
51/* 54/*
52 * Macros to access SONIC registers 55 * Macros to access SONIC registers
53 */ 56 */
54#define SONIC_READ(reg) (*((volatile unsigned int *)base_addr+reg)) 57#define SONIC_READ(reg) (*((volatile unsigned int *)dev->base_addr+reg))
55 58
56#define SONIC_WRITE(reg,val) \ 59#define SONIC_WRITE(reg,val) \
57do { \ 60do { \
58 *((volatile unsigned int *)base_addr+(reg)) = (val); \ 61 *((volatile unsigned int *)dev->base_addr+(reg)) = (val); \
59} while (0) 62} while (0)
60 63
61 64
62/* use 0 for production, 1 for verification, >2 for debug */ 65/* use 0 for production, 1 for verification, >1 for debug */
63#ifdef SONIC_DEBUG 66#ifdef SONIC_DEBUG
64static unsigned int sonic_debug = SONIC_DEBUG; 67static unsigned int sonic_debug = SONIC_DEBUG;
65#else 68#else
@@ -85,18 +88,18 @@ static unsigned short known_revisions[] =
85 0xffff /* end of list */ 88 0xffff /* end of list */
86}; 89};
87 90
88static int __init sonic_probe1(struct net_device *dev, unsigned long base_addr, 91static int __init sonic_probe1(struct net_device *dev)
89 unsigned int irq)
90{ 92{
91 static unsigned version_printed; 93 static unsigned version_printed;
92 unsigned int silicon_revision; 94 unsigned int silicon_revision;
93 unsigned int val; 95 unsigned int val;
94 struct sonic_local *lp; 96 struct sonic_local *lp = netdev_priv(dev);
95 int err = -ENODEV; 97 int err = -ENODEV;
96 int i; 98 int i;
97 99
98 if (!request_mem_region(base_addr, SONIC_MEM_SIZE, jazz_sonic_string)) 100 if (!request_mem_region(dev->base_addr, SONIC_MEM_SIZE, jazz_sonic_string))
99 return -EBUSY; 101 return -EBUSY;
102
100 /* 103 /*
101 * get the Silicon Revision ID. If this is one of the known 104 * get the Silicon Revision ID. If this is one of the known
102 * one assume that we found a SONIC ethernet controller at 105 * one assume that we found a SONIC ethernet controller at
@@ -120,11 +123,7 @@ static int __init sonic_probe1(struct net_device *dev, unsigned long base_addr,
120 if (sonic_debug && version_printed++ == 0) 123 if (sonic_debug && version_printed++ == 0)
121 printk(version); 124 printk(version);
122 125
123 printk("%s: Sonic ethernet found at 0x%08lx, ", dev->name, base_addr); 126 printk(KERN_INFO "%s: Sonic ethernet found at 0x%08lx, ", lp->device->bus_id, dev->base_addr);
124
125 /* Fill in the 'dev' fields. */
126 dev->base_addr = base_addr;
127 dev->irq = irq;
128 127
129 /* 128 /*
130 * Put the sonic into software reset, then 129 * Put the sonic into software reset, then
@@ -138,84 +137,44 @@ static int __init sonic_probe1(struct net_device *dev, unsigned long base_addr,
138 dev->dev_addr[i*2+1] = val >> 8; 137 dev->dev_addr[i*2+1] = val >> 8;
139 } 138 }
140 139
141 printk("HW Address ");
142 for (i = 0; i < 6; i++) {
143 printk("%2.2x", dev->dev_addr[i]);
144 if (i<5)
145 printk(":");
146 }
147
148 printk(" IRQ %d\n", irq);
149
150 err = -ENOMEM; 140 err = -ENOMEM;
151 141
152 /* Initialize the device structure. */ 142 /* Initialize the device structure. */
153 if (dev->priv == NULL) {
154 /*
155 * the memory be located in the same 64kb segment
156 */
157 lp = NULL;
158 i = 0;
159 do {
160 lp = kmalloc(sizeof(*lp), GFP_KERNEL);
161 if ((unsigned long) lp >> 16
162 != ((unsigned long)lp + sizeof(*lp) ) >> 16) {
163 /* FIXME, free the memory later */
164 kfree(lp);
165 lp = NULL;
166 }
167 } while (lp == NULL && i++ < 20);
168
169 if (lp == NULL) {
170 printk("%s: couldn't allocate memory for descriptors\n",
171 dev->name);
172 goto out;
173 }
174 143
175 memset(lp, 0, sizeof(struct sonic_local)); 144 lp->dma_bitmode = SONIC_BITMODE32;
176
177 /* get the virtual dma address */
178 lp->cda_laddr = vdma_alloc(CPHYSADDR(lp),sizeof(*lp));
179 if (lp->cda_laddr == ~0UL) {
180 printk("%s: couldn't get DMA page entry for "
181 "descriptors\n", dev->name);
182 goto out1;
183 }
184
185 lp->tda_laddr = lp->cda_laddr + sizeof (lp->cda);
186 lp->rra_laddr = lp->tda_laddr + sizeof (lp->tda);
187 lp->rda_laddr = lp->rra_laddr + sizeof (lp->rra);
188
189 /* allocate receive buffer area */
190 /* FIXME, maybe we should use skbs */
191 lp->rba = kmalloc(SONIC_NUM_RRS * SONIC_RBSIZE, GFP_KERNEL);
192 if (!lp->rba) {
193 printk("%s: couldn't allocate receive buffers\n",
194 dev->name);
195 goto out2;
196 }
197 145
198 /* get virtual dma address */ 146 /* Allocate the entire chunk of memory for the descriptors.
199 lp->rba_laddr = vdma_alloc(CPHYSADDR(lp->rba), 147 Note that this cannot cross a 64K boundary. */
200 SONIC_NUM_RRS * SONIC_RBSIZE); 148 if ((lp->descriptors = dma_alloc_coherent(lp->device,
201 if (lp->rba_laddr == ~0UL) { 149 SIZEOF_SONIC_DESC * SONIC_BUS_SCALE(lp->dma_bitmode),
202 printk("%s: couldn't get DMA page entry for receive " 150 &lp->descriptors_laddr, GFP_KERNEL)) == NULL) {
203 "buffers\n",dev->name); 151 printk(KERN_ERR "%s: couldn't alloc DMA memory for descriptors.\n", lp->device->bus_id);
204 goto out3; 152 goto out;
205 }
206
207 /* now convert pointer to KSEG1 pointer */
208 lp->rba = (char *)KSEG1ADDR(lp->rba);
209 flush_cache_all();
210 dev->priv = (struct sonic_local *)KSEG1ADDR(lp);
211 } 153 }
212 154
213 lp = (struct sonic_local *)dev->priv; 155 /* Now set up the pointers to point to the appropriate places */
156 lp->cda = lp->descriptors;
157 lp->tda = lp->cda + (SIZEOF_SONIC_CDA
158 * SONIC_BUS_SCALE(lp->dma_bitmode));
159 lp->rda = lp->tda + (SIZEOF_SONIC_TD * SONIC_NUM_TDS
160 * SONIC_BUS_SCALE(lp->dma_bitmode));
161 lp->rra = lp->rda + (SIZEOF_SONIC_RD * SONIC_NUM_RDS
162 * SONIC_BUS_SCALE(lp->dma_bitmode));
163
164 lp->cda_laddr = lp->descriptors_laddr;
165 lp->tda_laddr = lp->cda_laddr + (SIZEOF_SONIC_CDA
166 * SONIC_BUS_SCALE(lp->dma_bitmode));
167 lp->rda_laddr = lp->tda_laddr + (SIZEOF_SONIC_TD * SONIC_NUM_TDS
168 * SONIC_BUS_SCALE(lp->dma_bitmode));
169 lp->rra_laddr = lp->rda_laddr + (SIZEOF_SONIC_RD * SONIC_NUM_RDS
170 * SONIC_BUS_SCALE(lp->dma_bitmode));
171
214 dev->open = sonic_open; 172 dev->open = sonic_open;
215 dev->stop = sonic_close; 173 dev->stop = sonic_close;
216 dev->hard_start_xmit = sonic_send_packet; 174 dev->hard_start_xmit = sonic_send_packet;
217 dev->get_stats = sonic_get_stats; 175 dev->get_stats = sonic_get_stats;
218 dev->set_multicast_list = &sonic_multicast_list; 176 dev->set_multicast_list = &sonic_multicast_list;
177 dev->tx_timeout = sonic_tx_timeout;
219 dev->watchdog_timeo = TX_TIMEOUT; 178 dev->watchdog_timeo = TX_TIMEOUT;
220 179
221 /* 180 /*
@@ -226,14 +185,8 @@ static int __init sonic_probe1(struct net_device *dev, unsigned long base_addr,
226 SONIC_WRITE(SONIC_MPT,0xffff); 185 SONIC_WRITE(SONIC_MPT,0xffff);
227 186
228 return 0; 187 return 0;
229out3:
230 kfree(lp->rba);
231out2:
232 vdma_free(lp->cda_laddr);
233out1:
234 kfree(lp);
235out: 188out:
236 release_region(base_addr, SONIC_MEM_SIZE); 189 release_region(dev->base_addr, SONIC_MEM_SIZE);
237 return err; 190 return err;
238} 191}
239 192
@@ -245,7 +198,6 @@ static int __init jazz_sonic_probe(struct device *device)
245{ 198{
246 struct net_device *dev; 199 struct net_device *dev;
247 struct sonic_local *lp; 200 struct sonic_local *lp;
248 unsigned long base_addr;
249 int err = 0; 201 int err = 0;
250 int i; 202 int i;
251 203
@@ -255,21 +207,26 @@ static int __init jazz_sonic_probe(struct device *device)
255 if (mips_machgroup != MACH_GROUP_JAZZ) 207 if (mips_machgroup != MACH_GROUP_JAZZ)
256 return -ENODEV; 208 return -ENODEV;
257 209
258 dev = alloc_etherdev(0); 210 dev = alloc_etherdev(sizeof(struct sonic_local));
259 if (!dev) 211 if (!dev)
260 return -ENOMEM; 212 return -ENOMEM;
261 213
214 lp = netdev_priv(dev);
215 lp->device = device;
216 SET_NETDEV_DEV(dev, device);
217 SET_MODULE_OWNER(dev);
218
262 netdev_boot_setup_check(dev); 219 netdev_boot_setup_check(dev);
263 base_addr = dev->base_addr;
264 220
265 if (base_addr >= KSEG0) { /* Check a single specified location. */ 221 if (dev->base_addr >= KSEG0) { /* Check a single specified location. */
266 err = sonic_probe1(dev, base_addr, dev->irq); 222 err = sonic_probe1(dev);
267 } else if (base_addr != 0) { /* Don't probe at all. */ 223 } else if (dev->base_addr != 0) { /* Don't probe at all. */
268 err = -ENXIO; 224 err = -ENXIO;
269 } else { 225 } else {
270 for (i = 0; sonic_portlist[i].port; i++) { 226 for (i = 0; sonic_portlist[i].port; i++) {
271 int io = sonic_portlist[i].port; 227 dev->base_addr = sonic_portlist[i].port;
272 if (sonic_probe1(dev, io, sonic_portlist[i].irq) == 0) 228 dev->irq = sonic_portlist[i].irq;
229 if (sonic_probe1(dev) == 0)
273 break; 230 break;
274 } 231 }
275 if (!sonic_portlist[i].port) 232 if (!sonic_portlist[i].port)
@@ -281,14 +238,17 @@ static int __init jazz_sonic_probe(struct device *device)
281 if (err) 238 if (err)
282 goto out1; 239 goto out1;
283 240
241 printk("%s: MAC ", dev->name);
242 for (i = 0; i < 6; i++) {
243 printk("%2.2x", dev->dev_addr[i]);
244 if (i < 5)
245 printk(":");
246 }
247 printk(" IRQ %d\n", dev->irq);
248
284 return 0; 249 return 0;
285 250
286out1: 251out1:
287 lp = dev->priv;
288 vdma_free(lp->rba_laddr);
289 kfree(lp->rba);
290 vdma_free(lp->cda_laddr);
291 kfree(lp);
292 release_region(dev->base_addr, SONIC_MEM_SIZE); 252 release_region(dev->base_addr, SONIC_MEM_SIZE);
293out: 253out:
294 free_netdev(dev); 254 free_netdev(dev);
@@ -296,21 +256,22 @@ out:
296 return err; 256 return err;
297} 257}
298 258
299/* 259MODULE_DESCRIPTION("Jazz SONIC ethernet driver");
300 * SONIC uses a normal IRQ 260module_param(sonic_debug, int, 0);
301 */ 261MODULE_PARM_DESC(sonic_debug, "jazzsonic debug level (1-4)");
302#define sonic_request_irq request_irq
303#define sonic_free_irq free_irq
304 262
305#define sonic_chiptomem(x) KSEG1ADDR(vdma_log2phys(x)) 263#define SONIC_IRQ_FLAG SA_INTERRUPT
306 264
307#include "sonic.c" 265#include "sonic.c"
308 266
309static int __devexit jazz_sonic_device_remove (struct device *device) 267static int __devexit jazz_sonic_device_remove (struct device *device)
310{ 268{
311 struct net_device *dev = device->driver_data; 269 struct net_device *dev = device->driver_data;
270 struct sonic_local* lp = netdev_priv(dev);
312 271
313 unregister_netdev (dev); 272 unregister_netdev (dev);
273 dma_free_coherent(lp->device, SIZEOF_SONIC_DESC * SONIC_BUS_SCALE(lp->dma_bitmode),
274 lp->descriptors, lp->descriptors_laddr);
314 release_region (dev->base_addr, SONIC_MEM_SIZE); 275 release_region (dev->base_addr, SONIC_MEM_SIZE);
315 free_netdev (dev); 276 free_netdev (dev);
316 277
@@ -323,7 +284,7 @@ static struct device_driver jazz_sonic_driver = {
323 .probe = jazz_sonic_probe, 284 .probe = jazz_sonic_probe,
324 .remove = __devexit_p(jazz_sonic_device_remove), 285 .remove = __devexit_p(jazz_sonic_device_remove),
325}; 286};
326 287
327static void jazz_sonic_platform_release (struct device *device) 288static void jazz_sonic_platform_release (struct device *device)
328{ 289{
329 struct platform_device *pldev; 290 struct platform_device *pldev;
@@ -336,10 +297,11 @@ static void jazz_sonic_platform_release (struct device *device)
336static int __init jazz_sonic_init_module(void) 297static int __init jazz_sonic_init_module(void)
337{ 298{
338 struct platform_device *pldev; 299 struct platform_device *pldev;
300 int err;
339 301
340 if (driver_register(&jazz_sonic_driver)) { 302 if ((err = driver_register(&jazz_sonic_driver))) {
341 printk(KERN_ERR "Driver registration failed\n"); 303 printk(KERN_ERR "Driver registration failed\n");
342 return -ENOMEM; 304 return err;
343 } 305 }
344 306
345 jazz_sonic_device = NULL; 307 jazz_sonic_device = NULL;
diff --git a/drivers/net/macsonic.c b/drivers/net/macsonic.c
index be28c65de729..405e18365ede 100644
--- a/drivers/net/macsonic.c
+++ b/drivers/net/macsonic.c
@@ -1,6 +1,12 @@
1/* 1/*
2 * macsonic.c 2 * macsonic.c
3 * 3 *
4 * (C) 2005 Finn Thain
5 *
6 * Converted to DMA API, converted to unified driver model, made it work as
7 * a module again, and from the mac68k project, introduced more 32-bit cards
8 * and dhd's support for 16-bit cards.
9 *
4 * (C) 1998 Alan Cox 10 * (C) 1998 Alan Cox
5 * 11 *
6 * Debugging Andreas Ehliar, Michael Schmitz 12 * Debugging Andreas Ehliar, Michael Schmitz
@@ -26,8 +32,8 @@
26 */ 32 */
27 33
28#include <linux/kernel.h> 34#include <linux/kernel.h>
35#include <linux/module.h>
29#include <linux/types.h> 36#include <linux/types.h>
30#include <linux/ctype.h>
31#include <linux/fcntl.h> 37#include <linux/fcntl.h>
32#include <linux/interrupt.h> 38#include <linux/interrupt.h>
33#include <linux/init.h> 39#include <linux/init.h>
@@ -41,8 +47,8 @@
41#include <linux/netdevice.h> 47#include <linux/netdevice.h>
42#include <linux/etherdevice.h> 48#include <linux/etherdevice.h>
43#include <linux/skbuff.h> 49#include <linux/skbuff.h>
44#include <linux/module.h> 50#include <linux/device.h>
45#include <linux/bitops.h> 51#include <linux/dma-mapping.h>
46 52
47#include <asm/bootinfo.h> 53#include <asm/bootinfo.h>
48#include <asm/system.h> 54#include <asm/system.h>
@@ -54,25 +60,28 @@
54#include <asm/macints.h> 60#include <asm/macints.h>
55#include <asm/mac_via.h> 61#include <asm/mac_via.h>
56 62
57#define SREGS_PAD(n) u16 n; 63static char mac_sonic_string[] = "macsonic";
64static struct platform_device *mac_sonic_device;
58 65
59#include "sonic.h" 66#include "sonic.h"
60 67
61#define SONIC_READ(reg) \ 68/* These should basically be bus-size and endian independent (since
62 nubus_readl(base_addr+(reg)) 69 the SONIC is at least smart enough that it uses the same endianness
63#define SONIC_WRITE(reg,val) \ 70 as the host, unlike certain less enlightened Macintosh NICs) */
64 nubus_writel((val), base_addr+(reg)) 71#define SONIC_READ(reg) (nubus_readw(dev->base_addr + (reg * 4) \
65#define sonic_read(dev, reg) \ 72 + lp->reg_offset))
66 nubus_readl((dev)->base_addr+(reg)) 73#define SONIC_WRITE(reg,val) (nubus_writew(val, dev->base_addr + (reg * 4) \
67#define sonic_write(dev, reg, val) \ 74 + lp->reg_offset))
68 nubus_writel((val), (dev)->base_addr+(reg)) 75
69 76/* use 0 for production, 1 for verification, >1 for debug */
77#ifdef SONIC_DEBUG
78static unsigned int sonic_debug = SONIC_DEBUG;
79#else
80static unsigned int sonic_debug = 1;
81#endif
70 82
71static int sonic_debug;
72static int sonic_version_printed; 83static int sonic_version_printed;
73 84
74static int reg_offset;
75
76extern int mac_onboard_sonic_probe(struct net_device* dev); 85extern int mac_onboard_sonic_probe(struct net_device* dev);
77extern int mac_nubus_sonic_probe(struct net_device* dev); 86extern int mac_nubus_sonic_probe(struct net_device* dev);
78 87
@@ -108,40 +117,6 @@ enum macsonic_type {
108 117
109#define SONIC_READ_PROM(addr) nubus_readb(prom_addr+addr) 118#define SONIC_READ_PROM(addr) nubus_readb(prom_addr+addr)
110 119
111struct net_device * __init macsonic_probe(int unit)
112{
113 struct net_device *dev = alloc_etherdev(0);
114 int err;
115
116 if (!dev)
117 return ERR_PTR(-ENOMEM);
118
119 if (unit >= 0)
120 sprintf(dev->name, "eth%d", unit);
121
122 SET_MODULE_OWNER(dev);
123
124 /* This will catch fatal stuff like -ENOMEM as well as success */
125 err = mac_onboard_sonic_probe(dev);
126 if (err == 0)
127 goto found;
128 if (err != -ENODEV)
129 goto out;
130 err = mac_nubus_sonic_probe(dev);
131 if (err)
132 goto out;
133found:
134 err = register_netdev(dev);
135 if (err)
136 goto out1;
137 return dev;
138out1:
139 kfree(dev->priv);
140out:
141 free_netdev(dev);
142 return ERR_PTR(err);
143}
144
145/* 120/*
146 * For reversing the PROM address 121 * For reversing the PROM address
147 */ 122 */
@@ -160,103 +135,55 @@ static inline void bit_reverse_addr(unsigned char addr[6])
160 135
161int __init macsonic_init(struct net_device* dev) 136int __init macsonic_init(struct net_device* dev)
162{ 137{
163 struct sonic_local* lp = NULL; 138 struct sonic_local* lp = netdev_priv(dev);
164 int i;
165 139
166 /* Allocate the entire chunk of memory for the descriptors. 140 /* Allocate the entire chunk of memory for the descriptors.
167 Note that this cannot cross a 64K boundary. */ 141 Note that this cannot cross a 64K boundary. */
168 for (i = 0; i < 20; i++) { 142 if ((lp->descriptors = dma_alloc_coherent(lp->device,
169 unsigned long desc_base, desc_top; 143 SIZEOF_SONIC_DESC * SONIC_BUS_SCALE(lp->dma_bitmode),
170 if((lp = kmalloc(sizeof(struct sonic_local), GFP_KERNEL | GFP_DMA)) == NULL) { 144 &lp->descriptors_laddr, GFP_KERNEL)) == NULL) {
171 printk(KERN_ERR "%s: couldn't allocate descriptor buffers\n", dev->name); 145 printk(KERN_ERR "%s: couldn't alloc DMA memory for descriptors.\n", lp->device->bus_id);
172 return -ENOMEM;
173 }
174
175 desc_base = (unsigned long) lp;
176 desc_top = desc_base + sizeof(struct sonic_local);
177 if ((desc_top & 0xffff) >= (desc_base & 0xffff))
178 break;
179 /* Hmm. try again (FIXME: does this actually work?) */
180 kfree(lp);
181 printk(KERN_DEBUG
182 "%s: didn't get continguous chunk [%08lx - %08lx], trying again\n",
183 dev->name, desc_base, desc_top);
184 }
185
186 if (lp == NULL) {
187 printk(KERN_ERR "%s: tried 20 times to allocate descriptor buffers, giving up.\n",
188 dev->name);
189 return -ENOMEM; 146 return -ENOMEM;
190 } 147 }
191
192 dev->priv = lp;
193
194#if 0
195 /* this code is only here as a curiousity... mainly, where the
196 fuck did SONIC_BUS_SCALE come from, and what was it supposed
197 to do? the normal allocation works great for 32 bit stuffs.. */
198 148
199 /* Now set up the pointers to point to the appropriate places */ 149 /* Now set up the pointers to point to the appropriate places */
200 lp->cda = lp->sonic_desc; 150 lp->cda = lp->descriptors;
201 lp->tda = lp->cda + (SIZEOF_SONIC_CDA * SONIC_BUS_SCALE(lp->dma_bitmode)); 151 lp->tda = lp->cda + (SIZEOF_SONIC_CDA
152 * SONIC_BUS_SCALE(lp->dma_bitmode));
202 lp->rda = lp->tda + (SIZEOF_SONIC_TD * SONIC_NUM_TDS 153 lp->rda = lp->tda + (SIZEOF_SONIC_TD * SONIC_NUM_TDS
203 * SONIC_BUS_SCALE(lp->dma_bitmode)); 154 * SONIC_BUS_SCALE(lp->dma_bitmode));
204 lp->rra = lp->rda + (SIZEOF_SONIC_RD * SONIC_NUM_RDS 155 lp->rra = lp->rda + (SIZEOF_SONIC_RD * SONIC_NUM_RDS
205 * SONIC_BUS_SCALE(lp->dma_bitmode)); 156 * SONIC_BUS_SCALE(lp->dma_bitmode));
206 157
207#endif 158 lp->cda_laddr = lp->descriptors_laddr;
208 159 lp->tda_laddr = lp->cda_laddr + (SIZEOF_SONIC_CDA
209 memset(lp, 0, sizeof(struct sonic_local)); 160 * SONIC_BUS_SCALE(lp->dma_bitmode));
210 161 lp->rda_laddr = lp->tda_laddr + (SIZEOF_SONIC_TD * SONIC_NUM_TDS
211 lp->cda_laddr = (unsigned int)&(lp->cda); 162 * SONIC_BUS_SCALE(lp->dma_bitmode));
212 lp->tda_laddr = (unsigned int)lp->tda; 163 lp->rra_laddr = lp->rda_laddr + (SIZEOF_SONIC_RD * SONIC_NUM_RDS
213 lp->rra_laddr = (unsigned int)lp->rra; 164 * SONIC_BUS_SCALE(lp->dma_bitmode));
214 lp->rda_laddr = (unsigned int)lp->rda;
215
216 /* FIXME, maybe we should use skbs */
217 if ((lp->rba = (char *)
218 kmalloc(SONIC_NUM_RRS * SONIC_RBSIZE, GFP_KERNEL | GFP_DMA)) == NULL) {
219 printk(KERN_ERR "%s: couldn't allocate receive buffers\n", dev->name);
220 dev->priv = NULL;
221 kfree(lp);
222 return -ENOMEM;
223 }
224
225 lp->rba_laddr = (unsigned int)lp->rba;
226
227 {
228 int rs, ds;
229
230 /* almost always 12*4096, but let's not take chances */
231 rs = ((SONIC_NUM_RRS * SONIC_RBSIZE + 4095) / 4096) * 4096;
232 /* almost always under a page, but let's not take chances */
233 ds = ((sizeof(struct sonic_local) + 4095) / 4096) * 4096;
234 kernel_set_cachemode(lp->rba, rs, IOMAP_NOCACHE_SER);
235 kernel_set_cachemode(lp, ds, IOMAP_NOCACHE_SER);
236 }
237
238#if 0
239 flush_cache_all();
240#endif
241 165
242 dev->open = sonic_open; 166 dev->open = sonic_open;
243 dev->stop = sonic_close; 167 dev->stop = sonic_close;
244 dev->hard_start_xmit = sonic_send_packet; 168 dev->hard_start_xmit = sonic_send_packet;
245 dev->get_stats = sonic_get_stats; 169 dev->get_stats = sonic_get_stats;
246 dev->set_multicast_list = &sonic_multicast_list; 170 dev->set_multicast_list = &sonic_multicast_list;
171 dev->tx_timeout = sonic_tx_timeout;
172 dev->watchdog_timeo = TX_TIMEOUT;
247 173
248 /* 174 /*
249 * clear tally counter 175 * clear tally counter
250 */ 176 */
251 sonic_write(dev, SONIC_CRCT, 0xffff); 177 SONIC_WRITE(SONIC_CRCT, 0xffff);
252 sonic_write(dev, SONIC_FAET, 0xffff); 178 SONIC_WRITE(SONIC_FAET, 0xffff);
253 sonic_write(dev, SONIC_MPT, 0xffff); 179 SONIC_WRITE(SONIC_MPT, 0xffff);
254 180
255 return 0; 181 return 0;
256} 182}
257 183
258int __init mac_onboard_sonic_ethernet_addr(struct net_device* dev) 184int __init mac_onboard_sonic_ethernet_addr(struct net_device* dev)
259{ 185{
186 struct sonic_local *lp = netdev_priv(dev);
260 const int prom_addr = ONBOARD_SONIC_PROM_BASE; 187 const int prom_addr = ONBOARD_SONIC_PROM_BASE;
261 int i; 188 int i;
262 189
@@ -270,6 +197,7 @@ int __init mac_onboard_sonic_ethernet_addr(struct net_device* dev)
270 why this is so. */ 197 why this is so. */
271 if (memcmp(dev->dev_addr, "\x08\x00\x07", 3) && 198 if (memcmp(dev->dev_addr, "\x08\x00\x07", 3) &&
272 memcmp(dev->dev_addr, "\x00\xA0\x40", 3) && 199 memcmp(dev->dev_addr, "\x00\xA0\x40", 3) &&
200 memcmp(dev->dev_addr, "\x00\x80\x19", 3) &&
273 memcmp(dev->dev_addr, "\x00\x05\x02", 3)) 201 memcmp(dev->dev_addr, "\x00\x05\x02", 3))
274 bit_reverse_addr(dev->dev_addr); 202 bit_reverse_addr(dev->dev_addr);
275 else 203 else
@@ -281,22 +209,23 @@ int __init mac_onboard_sonic_ethernet_addr(struct net_device* dev)
281 the card... */ 209 the card... */
282 if (memcmp(dev->dev_addr, "\x08\x00\x07", 3) && 210 if (memcmp(dev->dev_addr, "\x08\x00\x07", 3) &&
283 memcmp(dev->dev_addr, "\x00\xA0\x40", 3) && 211 memcmp(dev->dev_addr, "\x00\xA0\x40", 3) &&
212 memcmp(dev->dev_addr, "\x00\x80\x19", 3) &&
284 memcmp(dev->dev_addr, "\x00\x05\x02", 3)) 213 memcmp(dev->dev_addr, "\x00\x05\x02", 3))
285 { 214 {
286 unsigned short val; 215 unsigned short val;
287 216
288 printk(KERN_INFO "macsonic: PROM seems to be wrong, trying CAM entry 15\n"); 217 printk(KERN_INFO "macsonic: PROM seems to be wrong, trying CAM entry 15\n");
289 218
290 sonic_write(dev, SONIC_CMD, SONIC_CR_RST); 219 SONIC_WRITE(SONIC_CMD, SONIC_CR_RST);
291 sonic_write(dev, SONIC_CEP, 15); 220 SONIC_WRITE(SONIC_CEP, 15);
292 221
293 val = sonic_read(dev, SONIC_CAP2); 222 val = SONIC_READ(SONIC_CAP2);
294 dev->dev_addr[5] = val >> 8; 223 dev->dev_addr[5] = val >> 8;
295 dev->dev_addr[4] = val & 0xff; 224 dev->dev_addr[4] = val & 0xff;
296 val = sonic_read(dev, SONIC_CAP1); 225 val = SONIC_READ(SONIC_CAP1);
297 dev->dev_addr[3] = val >> 8; 226 dev->dev_addr[3] = val >> 8;
298 dev->dev_addr[2] = val & 0xff; 227 dev->dev_addr[2] = val & 0xff;
299 val = sonic_read(dev, SONIC_CAP0); 228 val = SONIC_READ(SONIC_CAP0);
300 dev->dev_addr[1] = val >> 8; 229 dev->dev_addr[1] = val >> 8;
301 dev->dev_addr[0] = val & 0xff; 230 dev->dev_addr[0] = val & 0xff;
302 231
@@ -311,6 +240,7 @@ int __init mac_onboard_sonic_ethernet_addr(struct net_device* dev)
311 240
312 if (memcmp(dev->dev_addr, "\x08\x00\x07", 3) && 241 if (memcmp(dev->dev_addr, "\x08\x00\x07", 3) &&
313 memcmp(dev->dev_addr, "\x00\xA0\x40", 3) && 242 memcmp(dev->dev_addr, "\x00\xA0\x40", 3) &&
243 memcmp(dev->dev_addr, "\x00\x80\x19", 3) &&
314 memcmp(dev->dev_addr, "\x00\x05\x02", 3)) 244 memcmp(dev->dev_addr, "\x00\x05\x02", 3))
315 { 245 {
316 /* 246 /*
@@ -325,8 +255,9 @@ int __init mac_onboard_sonic_probe(struct net_device* dev)
325{ 255{
326 /* Bwahahaha */ 256 /* Bwahahaha */
327 static int once_is_more_than_enough; 257 static int once_is_more_than_enough;
328 int i; 258 struct sonic_local* lp = netdev_priv(dev);
329 int dma_bitmode; 259 int sr;
260 int commslot = 0;
330 261
331 if (once_is_more_than_enough) 262 if (once_is_more_than_enough)
332 return -ENODEV; 263 return -ENODEV;
@@ -335,20 +266,18 @@ int __init mac_onboard_sonic_probe(struct net_device* dev)
335 if (!MACH_IS_MAC) 266 if (!MACH_IS_MAC)
336 return -ENODEV; 267 return -ENODEV;
337 268
338 printk(KERN_INFO "Checking for internal Macintosh ethernet (SONIC).. ");
339
340 if (macintosh_config->ether_type != MAC_ETHER_SONIC) 269 if (macintosh_config->ether_type != MAC_ETHER_SONIC)
341 {
342 printk("none.\n");
343 return -ENODEV; 270 return -ENODEV;
344 } 271
345 272 printk(KERN_INFO "Checking for internal Macintosh ethernet (SONIC).. ");
273
346 /* Bogus probing, on the models which may or may not have 274 /* Bogus probing, on the models which may or may not have
347 Ethernet (BTW, the Ethernet *is* always at the same 275 Ethernet (BTW, the Ethernet *is* always at the same
348 address, and nothing else lives there, at least if Apple's 276 address, and nothing else lives there, at least if Apple's
349 documentation is to be believed) */ 277 documentation is to be believed) */
350 if (macintosh_config->ident == MAC_MODEL_Q630 || 278 if (macintosh_config->ident == MAC_MODEL_Q630 ||
351 macintosh_config->ident == MAC_MODEL_P588 || 279 macintosh_config->ident == MAC_MODEL_P588 ||
280 macintosh_config->ident == MAC_MODEL_P575 ||
352 macintosh_config->ident == MAC_MODEL_C610) { 281 macintosh_config->ident == MAC_MODEL_C610) {
353 unsigned long flags; 282 unsigned long flags;
354 int card_present; 283 int card_present;
@@ -361,13 +290,13 @@ int __init mac_onboard_sonic_probe(struct net_device* dev)
361 printk("none.\n"); 290 printk("none.\n");
362 return -ENODEV; 291 return -ENODEV;
363 } 292 }
293 commslot = 1;
364 } 294 }
365 295
366 printk("yes\n"); 296 printk("yes\n");
367 297
368 /* Danger! My arms are flailing wildly! You *must* set this 298 /* Danger! My arms are flailing wildly! You *must* set lp->reg_offset
369 before using sonic_read() */ 299 * and dev->base_addr before using SONIC_READ() or SONIC_WRITE() */
370
371 dev->base_addr = ONBOARD_SONIC_REGISTERS; 300 dev->base_addr = ONBOARD_SONIC_REGISTERS;
372 if (via_alt_mapping) 301 if (via_alt_mapping)
373 dev->irq = IRQ_AUTO_3; 302 dev->irq = IRQ_AUTO_3;
@@ -379,84 +308,66 @@ int __init mac_onboard_sonic_probe(struct net_device* dev)
379 sonic_version_printed = 1; 308 sonic_version_printed = 1;
380 } 309 }
381 printk(KERN_INFO "%s: onboard / comm-slot SONIC at 0x%08lx\n", 310 printk(KERN_INFO "%s: onboard / comm-slot SONIC at 0x%08lx\n",
382 dev->name, dev->base_addr); 311 lp->device->bus_id, dev->base_addr);
383
384 /* Now do a song and dance routine in an attempt to determine
385 the bus width */
386 312
387 /* The PowerBook's SONIC is 16 bit always. */ 313 /* The PowerBook's SONIC is 16 bit always. */
388 if (macintosh_config->ident == MAC_MODEL_PB520) { 314 if (macintosh_config->ident == MAC_MODEL_PB520) {
389 reg_offset = 0; 315 lp->reg_offset = 0;
390 dma_bitmode = 0; 316 lp->dma_bitmode = SONIC_BITMODE16;
391 } else if (macintosh_config->ident == MAC_MODEL_C610) { 317 sr = SONIC_READ(SONIC_SR);
392 reg_offset = 0; 318 } else if (commslot) {
393 dma_bitmode = 1;
394 } else {
395 /* Some of the comm-slot cards are 16 bit. But some 319 /* Some of the comm-slot cards are 16 bit. But some
396 of them are not. The 32-bit cards use offset 2 and 320 of them are not. The 32-bit cards use offset 2 and
397 pad with zeroes or sometimes ones (I think...) 321 have known revisions, we try reading the revision
398 Therefore, if we try offset 0 and get a silicon 322 register at offset 2, if we don't get a known revision
399 revision of 0, we assume 16 bit. */ 323 we assume 16 bit at offset 0. */
400 int sr; 324 lp->reg_offset = 2;
401 325 lp->dma_bitmode = SONIC_BITMODE16;
402 /* Technically this is not necessary since we zeroed 326
403 it above */ 327 sr = SONIC_READ(SONIC_SR);
404 reg_offset = 0; 328 if (sr == 0x0004 || sr == 0x0006 || sr == 0x0100 || sr == 0x0101)
405 dma_bitmode = 0; 329 /* 83932 is 0x0004 or 0x0006, 83934 is 0x0100 or 0x0101 */
406 sr = sonic_read(dev, SONIC_SR); 330 lp->dma_bitmode = SONIC_BITMODE32;
407 if (sr == 0 || sr == 0xffff) { 331 else {
408 reg_offset = 2; 332 lp->dma_bitmode = SONIC_BITMODE16;
409 /* 83932 is 0x0004, 83934 is 0x0100 or 0x0101 */ 333 lp->reg_offset = 0;
410 sr = sonic_read(dev, SONIC_SR); 334 sr = SONIC_READ(SONIC_SR);
411 dma_bitmode = 1;
412
413 } 335 }
414 printk(KERN_INFO 336 } else {
415 "%s: revision 0x%04x, using %d bit DMA and register offset %d\n", 337 /* All onboard cards are at offset 2 with 32 bit DMA. */
416 dev->name, sr, dma_bitmode?32:16, reg_offset); 338 lp->reg_offset = 2;
339 lp->dma_bitmode = SONIC_BITMODE32;
340 sr = SONIC_READ(SONIC_SR);
417 } 341 }
418 342 printk(KERN_INFO
343 "%s: revision 0x%04x, using %d bit DMA and register offset %d\n",
344 lp->device->bus_id, sr, lp->dma_bitmode?32:16, lp->reg_offset);
419 345
420 /* this carries my sincere apologies -- by the time I got to updating 346#if 0 /* This is sometimes useful to find out how MacOS configured the card. */
421 the driver, support for "reg_offsets" appeares nowhere in the sonic 347 printk(KERN_INFO "%s: DCR: 0x%04x, DCR2: 0x%04x\n", lp->device->bus_id,
422 code, going back for over a year. Fortunately, my Mac does't seem 348 SONIC_READ(SONIC_DCR) & 0xffff, SONIC_READ(SONIC_DCR2) & 0xffff);
423 to use whatever this was. 349#endif
424 350
425 If you know how this is supposed to be implemented, either fix it,
426 or contact me (sammy@oh.verio.com) to explain what it is. --Sam */
427
428 if(reg_offset) {
429 printk("%s: register offset unsupported. please fix this if you know what it is.\n", dev->name);
430 return -ENODEV;
431 }
432
433 /* Software reset, then initialize control registers. */ 351 /* Software reset, then initialize control registers. */
434 sonic_write(dev, SONIC_CMD, SONIC_CR_RST); 352 SONIC_WRITE(SONIC_CMD, SONIC_CR_RST);
435 sonic_write(dev, SONIC_DCR, SONIC_DCR_BMS | 353
436 SONIC_DCR_RFT1 | SONIC_DCR_TFT0 | SONIC_DCR_EXBUS | 354 SONIC_WRITE(SONIC_DCR, SONIC_DCR_EXBUS | SONIC_DCR_BMS |
437 (dma_bitmode ? SONIC_DCR_DW : 0)); 355 SONIC_DCR_RFT1 | SONIC_DCR_TFT0 |
356 (lp->dma_bitmode ? SONIC_DCR_DW : 0));
438 357
439 /* This *must* be written back to in order to restore the 358 /* This *must* be written back to in order to restore the
440 extended programmable output bits */ 359 * extended programmable output bits, as it may not have been
441 sonic_write(dev, SONIC_DCR2, 0); 360 * initialised since the hardware reset. */
361 SONIC_WRITE(SONIC_DCR2, 0);
442 362
443 /* Clear *and* disable interrupts to be on the safe side */ 363 /* Clear *and* disable interrupts to be on the safe side */
444 sonic_write(dev, SONIC_ISR,0x7fff); 364 SONIC_WRITE(SONIC_IMR, 0);
445 sonic_write(dev, SONIC_IMR,0); 365 SONIC_WRITE(SONIC_ISR, 0x7fff);
446 366
447 /* Now look for the MAC address. */ 367 /* Now look for the MAC address. */
448 if (mac_onboard_sonic_ethernet_addr(dev) != 0) 368 if (mac_onboard_sonic_ethernet_addr(dev) != 0)
449 return -ENODEV; 369 return -ENODEV;
450 370
451 printk(KERN_INFO "MAC ");
452 for (i = 0; i < 6; i++) {
453 printk("%2.2x", dev->dev_addr[i]);
454 if (i < 5)
455 printk(":");
456 }
457
458 printk(" IRQ %d\n", dev->irq);
459
460 /* Shared init code */ 371 /* Shared init code */
461 return macsonic_init(dev); 372 return macsonic_init(dev);
462} 373}
@@ -468,8 +379,10 @@ int __init mac_nubus_sonic_ethernet_addr(struct net_device* dev,
468 int i; 379 int i;
469 for(i = 0; i < 6; i++) 380 for(i = 0; i < 6; i++)
470 dev->dev_addr[i] = SONIC_READ_PROM(i); 381 dev->dev_addr[i] = SONIC_READ_PROM(i);
471 /* For now we are going to assume that they're all bit-reversed */ 382
472 bit_reverse_addr(dev->dev_addr); 383 /* Some of the addresses are bit-reversed */
384 if (id != MACSONIC_DAYNA)
385 bit_reverse_addr(dev->dev_addr);
473 386
474 return 0; 387 return 0;
475} 388}
@@ -487,6 +400,15 @@ int __init macsonic_ident(struct nubus_dev* ndev)
487 else 400 else
488 return MACSONIC_APPLE; 401 return MACSONIC_APPLE;
489 } 402 }
403
404 if (ndev->dr_hw == NUBUS_DRHW_SMC9194 &&
405 ndev->dr_sw == NUBUS_DRSW_DAYNA)
406 return MACSONIC_DAYNA;
407
408 if (ndev->dr_hw == NUBUS_DRHW_SONIC_LC &&
409 ndev->dr_sw == 0) { /* huh? */
410 return MACSONIC_APPLE16;
411 }
490 return -1; 412 return -1;
491} 413}
492 414
@@ -494,12 +416,12 @@ int __init mac_nubus_sonic_probe(struct net_device* dev)
494{ 416{
495 static int slots; 417 static int slots;
496 struct nubus_dev* ndev = NULL; 418 struct nubus_dev* ndev = NULL;
419 struct sonic_local* lp = netdev_priv(dev);
497 unsigned long base_addr, prom_addr; 420 unsigned long base_addr, prom_addr;
498 u16 sonic_dcr; 421 u16 sonic_dcr;
499 int id; 422 int id = -1;
500 int i; 423 int reg_offset, dma_bitmode;
501 int dma_bitmode; 424
502
503 /* Find the first SONIC that hasn't been initialized already */ 425 /* Find the first SONIC that hasn't been initialized already */
504 while ((ndev = nubus_find_type(NUBUS_CAT_NETWORK, 426 while ((ndev = nubus_find_type(NUBUS_CAT_NETWORK,
505 NUBUS_TYPE_ETHERNET, ndev)) != NULL) 427 NUBUS_TYPE_ETHERNET, ndev)) != NULL)
@@ -521,51 +443,52 @@ int __init mac_nubus_sonic_probe(struct net_device* dev)
521 case MACSONIC_DUODOCK: 443 case MACSONIC_DUODOCK:
522 base_addr = ndev->board->slot_addr + DUODOCK_SONIC_REGISTERS; 444 base_addr = ndev->board->slot_addr + DUODOCK_SONIC_REGISTERS;
523 prom_addr = ndev->board->slot_addr + DUODOCK_SONIC_PROM_BASE; 445 prom_addr = ndev->board->slot_addr + DUODOCK_SONIC_PROM_BASE;
524 sonic_dcr = SONIC_DCR_EXBUS | SONIC_DCR_RFT0 | SONIC_DCR_RFT1 446 sonic_dcr = SONIC_DCR_EXBUS | SONIC_DCR_RFT0 | SONIC_DCR_RFT1 |
525 | SONIC_DCR_TFT0; 447 SONIC_DCR_TFT0;
526 reg_offset = 2; 448 reg_offset = 2;
527 dma_bitmode = 1; 449 dma_bitmode = SONIC_BITMODE32;
528 break; 450 break;
529 case MACSONIC_APPLE: 451 case MACSONIC_APPLE:
530 base_addr = ndev->board->slot_addr + APPLE_SONIC_REGISTERS; 452 base_addr = ndev->board->slot_addr + APPLE_SONIC_REGISTERS;
531 prom_addr = ndev->board->slot_addr + APPLE_SONIC_PROM_BASE; 453 prom_addr = ndev->board->slot_addr + APPLE_SONIC_PROM_BASE;
532 sonic_dcr = SONIC_DCR_BMS | SONIC_DCR_RFT1 | SONIC_DCR_TFT0; 454 sonic_dcr = SONIC_DCR_BMS | SONIC_DCR_RFT1 | SONIC_DCR_TFT0;
533 reg_offset = 0; 455 reg_offset = 0;
534 dma_bitmode = 1; 456 dma_bitmode = SONIC_BITMODE32;
535 break; 457 break;
536 case MACSONIC_APPLE16: 458 case MACSONIC_APPLE16:
537 base_addr = ndev->board->slot_addr + APPLE_SONIC_REGISTERS; 459 base_addr = ndev->board->slot_addr + APPLE_SONIC_REGISTERS;
538 prom_addr = ndev->board->slot_addr + APPLE_SONIC_PROM_BASE; 460 prom_addr = ndev->board->slot_addr + APPLE_SONIC_PROM_BASE;
539 sonic_dcr = SONIC_DCR_EXBUS 461 sonic_dcr = SONIC_DCR_EXBUS | SONIC_DCR_RFT1 | SONIC_DCR_TFT0 |
540 | SONIC_DCR_RFT1 | SONIC_DCR_TFT0 462 SONIC_DCR_PO1 | SONIC_DCR_BMS;
541 | SONIC_DCR_PO1 | SONIC_DCR_BMS;
542 reg_offset = 0; 463 reg_offset = 0;
543 dma_bitmode = 0; 464 dma_bitmode = SONIC_BITMODE16;
544 break; 465 break;
545 case MACSONIC_DAYNALINK: 466 case MACSONIC_DAYNALINK:
546 base_addr = ndev->board->slot_addr + APPLE_SONIC_REGISTERS; 467 base_addr = ndev->board->slot_addr + APPLE_SONIC_REGISTERS;
547 prom_addr = ndev->board->slot_addr + DAYNALINK_PROM_BASE; 468 prom_addr = ndev->board->slot_addr + DAYNALINK_PROM_BASE;
548 sonic_dcr = SONIC_DCR_RFT1 | SONIC_DCR_TFT0 469 sonic_dcr = SONIC_DCR_RFT1 | SONIC_DCR_TFT0 |
549 | SONIC_DCR_PO1 | SONIC_DCR_BMS; 470 SONIC_DCR_PO1 | SONIC_DCR_BMS;
550 reg_offset = 0; 471 reg_offset = 0;
551 dma_bitmode = 0; 472 dma_bitmode = SONIC_BITMODE16;
552 break; 473 break;
553 case MACSONIC_DAYNA: 474 case MACSONIC_DAYNA:
554 base_addr = ndev->board->slot_addr + DAYNA_SONIC_REGISTERS; 475 base_addr = ndev->board->slot_addr + DAYNA_SONIC_REGISTERS;
555 prom_addr = ndev->board->slot_addr + DAYNA_SONIC_MAC_ADDR; 476 prom_addr = ndev->board->slot_addr + DAYNA_SONIC_MAC_ADDR;
556 sonic_dcr = SONIC_DCR_BMS 477 sonic_dcr = SONIC_DCR_BMS |
557 | SONIC_DCR_RFT1 | SONIC_DCR_TFT0 | SONIC_DCR_PO1; 478 SONIC_DCR_RFT1 | SONIC_DCR_TFT0 | SONIC_DCR_PO1;
558 reg_offset = 0; 479 reg_offset = 0;
559 dma_bitmode = 0; 480 dma_bitmode = SONIC_BITMODE16;
560 break; 481 break;
561 default: 482 default:
562 printk(KERN_ERR "macsonic: WTF, id is %d\n", id); 483 printk(KERN_ERR "macsonic: WTF, id is %d\n", id);
563 return -ENODEV; 484 return -ENODEV;
564 } 485 }
565 486
566 /* Danger! My arms are flailing wildly! You *must* set this 487 /* Danger! My arms are flailing wildly! You *must* set lp->reg_offset
567 before using sonic_read() */ 488 * and dev->base_addr before using SONIC_READ() or SONIC_WRITE() */
568 dev->base_addr = base_addr; 489 dev->base_addr = base_addr;
490 lp->reg_offset = reg_offset;
491 lp->dma_bitmode = dma_bitmode;
569 dev->irq = SLOT2IRQ(ndev->board->slot); 492 dev->irq = SLOT2IRQ(ndev->board->slot);
570 493
571 if (!sonic_version_printed) { 494 if (!sonic_version_printed) {
@@ -573,29 +496,66 @@ int __init mac_nubus_sonic_probe(struct net_device* dev)
573 sonic_version_printed = 1; 496 sonic_version_printed = 1;
574 } 497 }
575 printk(KERN_INFO "%s: %s in slot %X\n", 498 printk(KERN_INFO "%s: %s in slot %X\n",
576 dev->name, ndev->board->name, ndev->board->slot); 499 lp->device->bus_id, ndev->board->name, ndev->board->slot);
577 printk(KERN_INFO "%s: revision 0x%04x, using %d bit DMA and register offset %d\n", 500 printk(KERN_INFO "%s: revision 0x%04x, using %d bit DMA and register offset %d\n",
578 dev->name, sonic_read(dev, SONIC_SR), dma_bitmode?32:16, reg_offset); 501 lp->device->bus_id, SONIC_READ(SONIC_SR), dma_bitmode?32:16, reg_offset);
579 502
580 if(reg_offset) { 503#if 0 /* This is sometimes useful to find out how MacOS configured the card. */
581 printk("%s: register offset unsupported. please fix this if you know what it is.\n", dev->name); 504 printk(KERN_INFO "%s: DCR: 0x%04x, DCR2: 0x%04x\n", lp->device->bus_id,
582 return -ENODEV; 505 SONIC_READ(SONIC_DCR) & 0xffff, SONIC_READ(SONIC_DCR2) & 0xffff);
583 } 506#endif
584 507
585 /* Software reset, then initialize control registers. */ 508 /* Software reset, then initialize control registers. */
586 sonic_write(dev, SONIC_CMD, SONIC_CR_RST); 509 SONIC_WRITE(SONIC_CMD, SONIC_CR_RST);
587 sonic_write(dev, SONIC_DCR, sonic_dcr 510 SONIC_WRITE(SONIC_DCR, sonic_dcr | (dma_bitmode ? SONIC_DCR_DW : 0));
588 | (dma_bitmode ? SONIC_DCR_DW : 0)); 511 /* This *must* be written back to in order to restore the
512 * extended programmable output bits, since it may not have been
513 * initialised since the hardware reset. */
514 SONIC_WRITE(SONIC_DCR2, 0);
589 515
590 /* Clear *and* disable interrupts to be on the safe side */ 516 /* Clear *and* disable interrupts to be on the safe side */
591 sonic_write(dev, SONIC_ISR,0x7fff); 517 SONIC_WRITE(SONIC_IMR, 0);
592 sonic_write(dev, SONIC_IMR,0); 518 SONIC_WRITE(SONIC_ISR, 0x7fff);
593 519
594 /* Now look for the MAC address. */ 520 /* Now look for the MAC address. */
595 if (mac_nubus_sonic_ethernet_addr(dev, prom_addr, id) != 0) 521 if (mac_nubus_sonic_ethernet_addr(dev, prom_addr, id) != 0)
596 return -ENODEV; 522 return -ENODEV;
597 523
598 printk(KERN_INFO "MAC "); 524 /* Shared init code */
525 return macsonic_init(dev);
526}
527
528static int __init mac_sonic_probe(struct device *device)
529{
530 struct net_device *dev;
531 struct sonic_local *lp;
532 int err;
533 int i;
534
535 dev = alloc_etherdev(sizeof(struct sonic_local));
536 if (!dev)
537 return -ENOMEM;
538
539 lp = netdev_priv(dev);
540 lp->device = device;
541 SET_NETDEV_DEV(dev, device);
542 SET_MODULE_OWNER(dev);
543
544 /* This will catch fatal stuff like -ENOMEM as well as success */
545 err = mac_onboard_sonic_probe(dev);
546 if (err == 0)
547 goto found;
548 if (err != -ENODEV)
549 goto out;
550 err = mac_nubus_sonic_probe(dev);
551 if (err)
552 goto out;
553found:
554 err = register_netdev(dev);
555 if (err)
556 goto out;
557
558 printk("%s: MAC ", dev->name);
599 for (i = 0; i < 6; i++) { 559 for (i = 0; i < 6; i++) {
600 printk("%2.2x", dev->dev_addr[i]); 560 printk("%2.2x", dev->dev_addr[i]);
601 if (i < 5) 561 if (i < 5)
@@ -603,55 +563,95 @@ int __init mac_nubus_sonic_probe(struct net_device* dev)
603 } 563 }
604 printk(" IRQ %d\n", dev->irq); 564 printk(" IRQ %d\n", dev->irq);
605 565
606 /* Shared init code */ 566 return 0;
607 return macsonic_init(dev);
608}
609 567
610#ifdef MODULE 568out:
611static struct net_device *dev_macsonic; 569 free_netdev(dev);
612 570
613MODULE_PARM(sonic_debug, "i"); 571 return err;
572}
573
574MODULE_DESCRIPTION("Macintosh SONIC ethernet driver");
575module_param(sonic_debug, int, 0);
614MODULE_PARM_DESC(sonic_debug, "macsonic debug level (1-4)"); 576MODULE_PARM_DESC(sonic_debug, "macsonic debug level (1-4)");
615 577
616int 578#define SONIC_IRQ_FLAG IRQ_FLG_FAST
617init_module(void) 579
580#include "sonic.c"
581
582static int __devexit mac_sonic_device_remove (struct device *device)
618{ 583{
619 dev_macsonic = macsonic_probe(-1); 584 struct net_device *dev = device->driver_data;
620 if (IS_ERR(dev_macsonic)) { 585 struct sonic_local* lp = netdev_priv(dev);
621 printk(KERN_WARNING "macsonic.c: No card found\n"); 586
622 return PTR_ERR(dev_macsonic); 587 unregister_netdev (dev);
623 } 588 dma_free_coherent(lp->device, SIZEOF_SONIC_DESC * SONIC_BUS_SCALE(lp->dma_bitmode),
589 lp->descriptors, lp->descriptors_laddr);
590 free_netdev (dev);
591
624 return 0; 592 return 0;
625} 593}
626 594
627void 595static struct device_driver mac_sonic_driver = {
628cleanup_module(void) 596 .name = mac_sonic_string,
597 .bus = &platform_bus_type,
598 .probe = mac_sonic_probe,
599 .remove = __devexit_p(mac_sonic_device_remove),
600};
601
602static void mac_sonic_platform_release(struct device *device)
629{ 603{
630 unregister_netdev(dev_macsonic); 604 struct platform_device *pldev;
631 kfree(dev_macsonic->priv); 605
632 free_netdev(dev_macsonic); 606 /* free device */
607 pldev = to_platform_device (device);
608 kfree (pldev);
633} 609}
634#endif /* MODULE */
635 610
611static int __init mac_sonic_init_module(void)
612{
613 struct platform_device *pldev;
614 int err;
636 615
637#define vdma_alloc(foo, bar) ((u32)foo) 616 if ((err = driver_register(&mac_sonic_driver))) {
638#define vdma_free(baz) 617 printk(KERN_ERR "Driver registration failed\n");
639#define sonic_chiptomem(bat) (bat) 618 return err;
640#define PHYSADDR(quux) (quux) 619 }
641#define CPHYSADDR(quux) (quux)
642 620
643#define sonic_request_irq request_irq 621 mac_sonic_device = NULL;
644#define sonic_free_irq free_irq
645 622
646#include "sonic.c" 623 if (!(pldev = kmalloc (sizeof (*pldev), GFP_KERNEL))) {
624 goto out_unregister;
625 }
647 626
648/* 627 memset(pldev, 0, sizeof (*pldev));
649 * Local variables: 628 pldev->name = mac_sonic_string;
650 * compile-command: "m68k-linux-gcc -D__KERNEL__ -I../../include -Wall -Wstrict-prototypes -O2 -fomit-frame-pointer -pipe -fno-strength-reduce -ffixed-a2 -DMODULE -DMODVERSIONS -include ../../include/linux/modversions.h -c -o macsonic.o macsonic.c" 629 pldev->id = 0;
651 * version-control: t 630 pldev->dev.release = mac_sonic_platform_release;
652 * kept-new-versions: 5 631 mac_sonic_device = pldev;
653 * c-indent-level: 8 632
654 * tab-width: 8 633 if (platform_device_register (pldev)) {
655 * End: 634 kfree(pldev);
656 * 635 mac_sonic_device = NULL;
657 */ 636 }
637
638 return 0;
639
640out_unregister:
641 platform_device_unregister(pldev);
642
643 return -ENOMEM;
644}
645
646static void __exit mac_sonic_cleanup_module(void)
647{
648 driver_unregister(&mac_sonic_driver);
649
650 if (mac_sonic_device) {
651 platform_device_unregister(mac_sonic_device);
652 mac_sonic_device = NULL;
653 }
654}
655
656module_init(mac_sonic_init_module);
657module_exit(mac_sonic_cleanup_module);
diff --git a/drivers/net/sonic.c b/drivers/net/sonic.c
index cdc9cc873e06..90b818a8de6e 100644
--- a/drivers/net/sonic.c
+++ b/drivers/net/sonic.c
@@ -1,6 +1,11 @@
1/* 1/*
2 * sonic.c 2 * sonic.c
3 * 3 *
4 * (C) 2005 Finn Thain
5 *
6 * Converted to DMA API, added zero-copy buffer handling, and
7 * (from the mac68k project) introduced dhd's support for 16-bit cards.
8 *
4 * (C) 1996,1998 by Thomas Bogendoerfer (tsbogend@alpha.franken.de) 9 * (C) 1996,1998 by Thomas Bogendoerfer (tsbogend@alpha.franken.de)
5 * 10 *
6 * This driver is based on work from Andreas Busse, but most of 11 * This driver is based on work from Andreas Busse, but most of
@@ -9,12 +14,23 @@
9 * (C) 1995 by Andreas Busse (andy@waldorf-gmbh.de) 14 * (C) 1995 by Andreas Busse (andy@waldorf-gmbh.de)
10 * 15 *
11 * Core code included by system sonic drivers 16 * Core code included by system sonic drivers
17 *
18 * And... partially rewritten again by David Huggins-Daines in order
19 * to cope with screwed up Macintosh NICs that may or may not use
20 * 16-bit DMA.
21 *
22 * (C) 1999 David Huggins-Daines <dhd@debian.org>
23 *
12 */ 24 */
13 25
14/* 26/*
15 * Sources: Olivetti M700-10 Risc Personal Computer hardware handbook, 27 * Sources: Olivetti M700-10 Risc Personal Computer hardware handbook,
16 * National Semiconductors data sheet for the DP83932B Sonic Ethernet 28 * National Semiconductors data sheet for the DP83932B Sonic Ethernet
17 * controller, and the files "8390.c" and "skeleton.c" in this directory. 29 * controller, and the files "8390.c" and "skeleton.c" in this directory.
30 *
31 * Additional sources: Nat Semi data sheet for the DP83932C and Nat Semi
32 * Application Note AN-746, the files "lance.c" and "ibmlana.c". See also
33 * the NetBSD file "sys/arch/mac68k/dev/if_sn.c".
18 */ 34 */
19 35
20 36
@@ -28,6 +44,9 @@
28 */ 44 */
29static int sonic_open(struct net_device *dev) 45static int sonic_open(struct net_device *dev)
30{ 46{
47 struct sonic_local *lp = netdev_priv(dev);
48 int i;
49
31 if (sonic_debug > 2) 50 if (sonic_debug > 2)
32 printk("sonic_open: initializing sonic driver.\n"); 51 printk("sonic_open: initializing sonic driver.\n");
33 52
@@ -40,14 +59,59 @@ static int sonic_open(struct net_device *dev)
40 * This means that during execution of the handler interrupt are disabled 59 * This means that during execution of the handler interrupt are disabled
41 * covering another bug otherwise corrupting data. This doesn't mean 60 * covering another bug otherwise corrupting data. This doesn't mean
42 * this glue works ok under all situations. 61 * this glue works ok under all situations.
62 *
63 * Note (dhd): this also appears to prevent lockups on the Macintrash
64 * when more than one Ethernet card is installed (knock on wood)
65 *
66 * Note (fthain): whether the above is still true is anyones guess. Certainly
67 * the buffer handling algorithms will not tolerate re-entrance without some
68 * mutual exclusion added. Anyway, the memcpy has now been eliminated from the
69 * rx code to make this a faster "fast interrupt".
43 */ 70 */
44// if (sonic_request_irq(dev->irq, &sonic_interrupt, 0, "sonic", dev)) { 71 if (request_irq(dev->irq, &sonic_interrupt, SONIC_IRQ_FLAG, "sonic", dev)) {
45 if (sonic_request_irq(dev->irq, &sonic_interrupt, SA_INTERRUPT, 72 printk(KERN_ERR "\n%s: unable to get IRQ %d .\n", dev->name, dev->irq);
46 "sonic", dev)) {
47 printk("\n%s: unable to get IRQ %d .\n", dev->name, dev->irq);
48 return -EAGAIN; 73 return -EAGAIN;
49 } 74 }
50 75
76 for (i = 0; i < SONIC_NUM_RRS; i++) {
77 struct sk_buff *skb = dev_alloc_skb(SONIC_RBSIZE + 2);
78 if (skb == NULL) {
79 while(i > 0) { /* free any that were allocated successfully */
80 i--;
81 dev_kfree_skb(lp->rx_skb[i]);
82 lp->rx_skb[i] = NULL;
83 }
84 printk(KERN_ERR "%s: couldn't allocate receive buffers\n",
85 dev->name);
86 return -ENOMEM;
87 }
88 skb->dev = dev;
89 /* align IP header unless DMA requires otherwise */
90 if (SONIC_BUS_SCALE(lp->dma_bitmode) == 2)
91 skb_reserve(skb, 2);
92 lp->rx_skb[i] = skb;
93 }
94
95 for (i = 0; i < SONIC_NUM_RRS; i++) {
96 dma_addr_t laddr = dma_map_single(lp->device, skb_put(lp->rx_skb[i], SONIC_RBSIZE),
97 SONIC_RBSIZE, DMA_FROM_DEVICE);
98 if (!laddr) {
99 while(i > 0) { /* free any that were mapped successfully */
100 i--;
101 dma_unmap_single(lp->device, lp->rx_laddr[i], SONIC_RBSIZE, DMA_FROM_DEVICE);
102 lp->rx_laddr[i] = (dma_addr_t)0;
103 }
104 for (i = 0; i < SONIC_NUM_RRS; i++) {
105 dev_kfree_skb(lp->rx_skb[i]);
106 lp->rx_skb[i] = NULL;
107 }
108 printk(KERN_ERR "%s: couldn't map rx DMA buffers\n",
109 dev->name);
110 return -ENOMEM;
111 }
112 lp->rx_laddr[i] = laddr;
113 }
114
51 /* 115 /*
52 * Initialize the SONIC 116 * Initialize the SONIC
53 */ 117 */
@@ -67,7 +131,8 @@ static int sonic_open(struct net_device *dev)
67 */ 131 */
68static int sonic_close(struct net_device *dev) 132static int sonic_close(struct net_device *dev)
69{ 133{
70 unsigned int base_addr = dev->base_addr; 134 struct sonic_local *lp = netdev_priv(dev);
135 int i;
71 136
72 if (sonic_debug > 2) 137 if (sonic_debug > 2)
73 printk("sonic_close\n"); 138 printk("sonic_close\n");
@@ -77,20 +142,56 @@ static int sonic_close(struct net_device *dev)
77 /* 142 /*
78 * stop the SONIC, disable interrupts 143 * stop the SONIC, disable interrupts
79 */ 144 */
80 SONIC_WRITE(SONIC_ISR, 0x7fff);
81 SONIC_WRITE(SONIC_IMR, 0); 145 SONIC_WRITE(SONIC_IMR, 0);
146 SONIC_WRITE(SONIC_ISR, 0x7fff);
82 SONIC_WRITE(SONIC_CMD, SONIC_CR_RST); 147 SONIC_WRITE(SONIC_CMD, SONIC_CR_RST);
83 148
84 sonic_free_irq(dev->irq, dev); /* release the IRQ */ 149 /* unmap and free skbs that haven't been transmitted */
150 for (i = 0; i < SONIC_NUM_TDS; i++) {
151 if(lp->tx_laddr[i]) {
152 dma_unmap_single(lp->device, lp->tx_laddr[i], lp->tx_len[i], DMA_TO_DEVICE);
153 lp->tx_laddr[i] = (dma_addr_t)0;
154 }
155 if(lp->tx_skb[i]) {
156 dev_kfree_skb(lp->tx_skb[i]);
157 lp->tx_skb[i] = NULL;
158 }
159 }
160
161 /* unmap and free the receive buffers */
162 for (i = 0; i < SONIC_NUM_RRS; i++) {
163 if(lp->rx_laddr[i]) {
164 dma_unmap_single(lp->device, lp->rx_laddr[i], SONIC_RBSIZE, DMA_FROM_DEVICE);
165 lp->rx_laddr[i] = (dma_addr_t)0;
166 }
167 if(lp->rx_skb[i]) {
168 dev_kfree_skb(lp->rx_skb[i]);
169 lp->rx_skb[i] = NULL;
170 }
171 }
172
173 free_irq(dev->irq, dev); /* release the IRQ */
85 174
86 return 0; 175 return 0;
87} 176}
88 177
89static void sonic_tx_timeout(struct net_device *dev) 178static void sonic_tx_timeout(struct net_device *dev)
90{ 179{
91 struct sonic_local *lp = (struct sonic_local *) dev->priv; 180 struct sonic_local *lp = netdev_priv(dev);
92 printk("%s: transmit timed out.\n", dev->name); 181 int i;
93 182 /* Stop the interrupts for this */
183 SONIC_WRITE(SONIC_IMR, 0);
184 /* We could resend the original skbs. Easier to re-initialise. */
185 for (i = 0; i < SONIC_NUM_TDS; i++) {
186 if(lp->tx_laddr[i]) {
187 dma_unmap_single(lp->device, lp->tx_laddr[i], lp->tx_len[i], DMA_TO_DEVICE);
188 lp->tx_laddr[i] = (dma_addr_t)0;
189 }
190 if(lp->tx_skb[i]) {
191 dev_kfree_skb(lp->tx_skb[i]);
192 lp->tx_skb[i] = NULL;
193 }
194 }
94 /* Try to restart the adaptor. */ 195 /* Try to restart the adaptor. */
95 sonic_init(dev); 196 sonic_init(dev);
96 lp->stats.tx_errors++; 197 lp->stats.tx_errors++;
@@ -100,60 +201,92 @@ static void sonic_tx_timeout(struct net_device *dev)
100 201
101/* 202/*
102 * transmit packet 203 * transmit packet
204 *
205 * Appends new TD during transmission thus avoiding any TX interrupts
206 * until we run out of TDs.
207 * This routine interacts closely with the ISR in that it may,
208 * set tx_skb[i]
209 * reset the status flags of the new TD
210 * set and reset EOL flags
211 * stop the tx queue
212 * The ISR interacts with this routine in various ways. It may,
213 * reset tx_skb[i]
214 * test the EOL and status flags of the TDs
215 * wake the tx queue
216 * Concurrently with all of this, the SONIC is potentially writing to
217 * the status flags of the TDs.
218 * Until some mutual exclusion is added, this code will not work with SMP. However,
219 * MIPS Jazz machines and m68k Macs were all uni-processor machines.
103 */ 220 */
221
104static int sonic_send_packet(struct sk_buff *skb, struct net_device *dev) 222static int sonic_send_packet(struct sk_buff *skb, struct net_device *dev)
105{ 223{
106 struct sonic_local *lp = (struct sonic_local *) dev->priv; 224 struct sonic_local *lp = netdev_priv(dev);
107 unsigned int base_addr = dev->base_addr; 225 dma_addr_t laddr;
108 unsigned int laddr; 226 int length;
109 int entry, length; 227 int entry = lp->next_tx;
110
111 netif_stop_queue(dev);
112 228
113 if (sonic_debug > 2) 229 if (sonic_debug > 2)
114 printk("sonic_send_packet: skb=%p, dev=%p\n", skb, dev); 230 printk("sonic_send_packet: skb=%p, dev=%p\n", skb, dev);
115 231
232 length = skb->len;
233 if (length < ETH_ZLEN) {
234 skb = skb_padto(skb, ETH_ZLEN);
235 if (skb == NULL)
236 return 0;
237 length = ETH_ZLEN;
238 }
239
116 /* 240 /*
117 * Map the packet data into the logical DMA address space 241 * Map the packet data into the logical DMA address space
118 */ 242 */
119 if ((laddr = vdma_alloc(CPHYSADDR(skb->data), skb->len)) == ~0UL) { 243
120 printk("%s: no VDMA entry for transmit available.\n", 244 laddr = dma_map_single(lp->device, skb->data, length, DMA_TO_DEVICE);
121 dev->name); 245 if (!laddr) {
246 printk(KERN_ERR "%s: failed to map tx DMA buffer.\n", dev->name);
122 dev_kfree_skb(skb); 247 dev_kfree_skb(skb);
123 netif_start_queue(dev);
124 return 1; 248 return 1;
125 } 249 }
126 entry = lp->cur_tx & SONIC_TDS_MASK; 250
251 sonic_tda_put(dev, entry, SONIC_TD_STATUS, 0); /* clear status */
252 sonic_tda_put(dev, entry, SONIC_TD_FRAG_COUNT, 1); /* single fragment */
253 sonic_tda_put(dev, entry, SONIC_TD_PKTSIZE, length); /* length of packet */
254 sonic_tda_put(dev, entry, SONIC_TD_FRAG_PTR_L, laddr & 0xffff);
255 sonic_tda_put(dev, entry, SONIC_TD_FRAG_PTR_H, laddr >> 16);
256 sonic_tda_put(dev, entry, SONIC_TD_FRAG_SIZE, length);
257 sonic_tda_put(dev, entry, SONIC_TD_LINK,
258 sonic_tda_get(dev, entry, SONIC_TD_LINK) | SONIC_EOL);
259
260 /*
261 * Must set tx_skb[entry] only after clearing status, and
262 * before clearing EOL and before stopping queue
263 */
264 wmb();
265 lp->tx_len[entry] = length;
127 lp->tx_laddr[entry] = laddr; 266 lp->tx_laddr[entry] = laddr;
128 lp->tx_skb[entry] = skb; 267 lp->tx_skb[entry] = skb;
129 268
130 length = (skb->len < ETH_ZLEN) ? ETH_ZLEN : skb->len; 269 wmb();
131 flush_cache_all(); 270 sonic_tda_put(dev, lp->eol_tx, SONIC_TD_LINK,
271 sonic_tda_get(dev, lp->eol_tx, SONIC_TD_LINK) & ~SONIC_EOL);
272 lp->eol_tx = entry;
132 273
133 /* 274 lp->next_tx = (entry + 1) & SONIC_TDS_MASK;
134 * Setup the transmit descriptor and issue the transmit command. 275 if (lp->tx_skb[lp->next_tx] != NULL) {
135 */ 276 /* The ring is full, the ISR has yet to process the next TD. */
136 lp->tda[entry].tx_status = 0; /* clear status */ 277 if (sonic_debug > 3)
137 lp->tda[entry].tx_frag_count = 1; /* single fragment */ 278 printk("%s: stopping queue\n", dev->name);
138 lp->tda[entry].tx_pktsize = length; /* length of packet */ 279 netif_stop_queue(dev);
139 lp->tda[entry].tx_frag_ptr_l = laddr & 0xffff; 280 /* after this packet, wait for ISR to free up some TDAs */
140 lp->tda[entry].tx_frag_ptr_h = laddr >> 16; 281 } else netif_start_queue(dev);
141 lp->tda[entry].tx_frag_size = length;
142 lp->cur_tx++;
143 lp->stats.tx_bytes += length;
144 282
145 if (sonic_debug > 2) 283 if (sonic_debug > 2)
146 printk("sonic_send_packet: issueing Tx command\n"); 284 printk("sonic_send_packet: issuing Tx command\n");
147 285
148 SONIC_WRITE(SONIC_CMD, SONIC_CR_TXP); 286 SONIC_WRITE(SONIC_CMD, SONIC_CR_TXP);
149 287
150 dev->trans_start = jiffies; 288 dev->trans_start = jiffies;
151 289
152 if (lp->cur_tx < lp->dirty_tx + SONIC_NUM_TDS)
153 netif_start_queue(dev);
154 else
155 lp->tx_full = 1;
156
157 return 0; 290 return 0;
158} 291}
159 292
@@ -164,175 +297,199 @@ static int sonic_send_packet(struct sk_buff *skb, struct net_device *dev)
164static irqreturn_t sonic_interrupt(int irq, void *dev_id, struct pt_regs *regs) 297static irqreturn_t sonic_interrupt(int irq, void *dev_id, struct pt_regs *regs)
165{ 298{
166 struct net_device *dev = (struct net_device *) dev_id; 299 struct net_device *dev = (struct net_device *) dev_id;
167 unsigned int base_addr = dev->base_addr; 300 struct sonic_local *lp = netdev_priv(dev);
168 struct sonic_local *lp;
169 int status; 301 int status;
170 302
171 if (dev == NULL) { 303 if (dev == NULL) {
172 printk("sonic_interrupt: irq %d for unknown device.\n", irq); 304 printk(KERN_ERR "sonic_interrupt: irq %d for unknown device.\n", irq);
173 return IRQ_NONE; 305 return IRQ_NONE;
174 } 306 }
175 307
176 lp = (struct sonic_local *) dev->priv; 308 if (!(status = SONIC_READ(SONIC_ISR) & SONIC_IMR_DEFAULT))
177 309 return IRQ_NONE;
178 status = SONIC_READ(SONIC_ISR);
179 SONIC_WRITE(SONIC_ISR, 0x7fff); /* clear all bits */
180
181 if (sonic_debug > 2)
182 printk("sonic_interrupt: ISR=%x\n", status);
183
184 if (status & SONIC_INT_PKTRX) {
185 sonic_rx(dev); /* got packet(s) */
186 }
187
188 if (status & SONIC_INT_TXDN) {
189 int dirty_tx = lp->dirty_tx;
190
191 while (dirty_tx < lp->cur_tx) {
192 int entry = dirty_tx & SONIC_TDS_MASK;
193 int status = lp->tda[entry].tx_status;
194 310
195 if (sonic_debug > 3) 311 do {
196 printk 312 if (status & SONIC_INT_PKTRX) {
197 ("sonic_interrupt: status %d, cur_tx %d, dirty_tx %d\n", 313 if (sonic_debug > 2)
198 status, lp->cur_tx, lp->dirty_tx); 314 printk("%s: packet rx\n", dev->name);
315 sonic_rx(dev); /* got packet(s) */
316 SONIC_WRITE(SONIC_ISR, SONIC_INT_PKTRX); /* clear the interrupt */
317 }
199 318
200 if (status == 0) { 319 if (status & SONIC_INT_TXDN) {
201 /* It still hasn't been Txed, kick the sonic again */ 320 int entry = lp->cur_tx;
202 SONIC_WRITE(SONIC_CMD, SONIC_CR_TXP); 321 int td_status;
203 break; 322 int freed_some = 0;
204 }
205 323
206 /* put back EOL and free descriptor */ 324 /* At this point, cur_tx is the index of a TD that is one of:
207 lp->tda[entry].tx_frag_count = 0; 325 * unallocated/freed (status set & tx_skb[entry] clear)
208 lp->tda[entry].tx_status = 0; 326 * allocated and sent (status set & tx_skb[entry] set )
209 327 * allocated and not yet sent (status clear & tx_skb[entry] set )
210 if (status & 0x0001) 328 * still being allocated by sonic_send_packet (status clear & tx_skb[entry] clear)
211 lp->stats.tx_packets++; 329 */
212 else {
213 lp->stats.tx_errors++;
214 if (status & 0x0642)
215 lp->stats.tx_aborted_errors++;
216 if (status & 0x0180)
217 lp->stats.tx_carrier_errors++;
218 if (status & 0x0020)
219 lp->stats.tx_window_errors++;
220 if (status & 0x0004)
221 lp->stats.tx_fifo_errors++;
222 }
223 330
224 /* We must free the original skb */ 331 if (sonic_debug > 2)
225 if (lp->tx_skb[entry]) { 332 printk("%s: tx done\n", dev->name);
333
334 while (lp->tx_skb[entry] != NULL) {
335 if ((td_status = sonic_tda_get(dev, entry, SONIC_TD_STATUS)) == 0)
336 break;
337
338 if (td_status & 0x0001) {
339 lp->stats.tx_packets++;
340 lp->stats.tx_bytes += sonic_tda_get(dev, entry, SONIC_TD_PKTSIZE);
341 } else {
342 lp->stats.tx_errors++;
343 if (td_status & 0x0642)
344 lp->stats.tx_aborted_errors++;
345 if (td_status & 0x0180)
346 lp->stats.tx_carrier_errors++;
347 if (td_status & 0x0020)
348 lp->stats.tx_window_errors++;
349 if (td_status & 0x0004)
350 lp->stats.tx_fifo_errors++;
351 }
352
353 /* We must free the original skb */
226 dev_kfree_skb_irq(lp->tx_skb[entry]); 354 dev_kfree_skb_irq(lp->tx_skb[entry]);
227 lp->tx_skb[entry] = 0; 355 lp->tx_skb[entry] = NULL;
356 /* and unmap DMA buffer */
357 dma_unmap_single(lp->device, lp->tx_laddr[entry], lp->tx_len[entry], DMA_TO_DEVICE);
358 lp->tx_laddr[entry] = (dma_addr_t)0;
359 freed_some = 1;
360
361 if (sonic_tda_get(dev, entry, SONIC_TD_LINK) & SONIC_EOL) {
362 entry = (entry + 1) & SONIC_TDS_MASK;
363 break;
364 }
365 entry = (entry + 1) & SONIC_TDS_MASK;
228 } 366 }
229 /* and the VDMA address */
230 vdma_free(lp->tx_laddr[entry]);
231 dirty_tx++;
232 }
233 367
234 if (lp->tx_full 368 if (freed_some || lp->tx_skb[entry] == NULL)
235 && dirty_tx + SONIC_NUM_TDS > lp->cur_tx + 2) { 369 netif_wake_queue(dev); /* The ring is no longer full */
236 /* The ring is no longer full, clear tbusy. */ 370 lp->cur_tx = entry;
237 lp->tx_full = 0; 371 SONIC_WRITE(SONIC_ISR, SONIC_INT_TXDN); /* clear the interrupt */
238 netif_wake_queue(dev);
239 } 372 }
240 373
241 lp->dirty_tx = dirty_tx; 374 /*
242 } 375 * check error conditions
376 */
377 if (status & SONIC_INT_RFO) {
378 if (sonic_debug > 1)
379 printk("%s: rx fifo overrun\n", dev->name);
380 lp->stats.rx_fifo_errors++;
381 SONIC_WRITE(SONIC_ISR, SONIC_INT_RFO); /* clear the interrupt */
382 }
383 if (status & SONIC_INT_RDE) {
384 if (sonic_debug > 1)
385 printk("%s: rx descriptors exhausted\n", dev->name);
386 lp->stats.rx_dropped++;
387 SONIC_WRITE(SONIC_ISR, SONIC_INT_RDE); /* clear the interrupt */
388 }
389 if (status & SONIC_INT_RBAE) {
390 if (sonic_debug > 1)
391 printk("%s: rx buffer area exceeded\n", dev->name);
392 lp->stats.rx_dropped++;
393 SONIC_WRITE(SONIC_ISR, SONIC_INT_RBAE); /* clear the interrupt */
394 }
243 395
244 /* 396 /* counter overruns; all counters are 16bit wide */
245 * check error conditions 397 if (status & SONIC_INT_FAE) {
246 */ 398 lp->stats.rx_frame_errors += 65536;
247 if (status & SONIC_INT_RFO) { 399 SONIC_WRITE(SONIC_ISR, SONIC_INT_FAE); /* clear the interrupt */
248 printk("%s: receive fifo underrun\n", dev->name); 400 }
249 lp->stats.rx_fifo_errors++; 401 if (status & SONIC_INT_CRC) {
250 } 402 lp->stats.rx_crc_errors += 65536;
251 if (status & SONIC_INT_RDE) { 403 SONIC_WRITE(SONIC_ISR, SONIC_INT_CRC); /* clear the interrupt */
252 printk("%s: receive descriptors exhausted\n", dev->name); 404 }
253 lp->stats.rx_dropped++; 405 if (status & SONIC_INT_MP) {
254 } 406 lp->stats.rx_missed_errors += 65536;
255 if (status & SONIC_INT_RBE) { 407 SONIC_WRITE(SONIC_ISR, SONIC_INT_MP); /* clear the interrupt */
256 printk("%s: receive buffer exhausted\n", dev->name); 408 }
257 lp->stats.rx_dropped++;
258 }
259 if (status & SONIC_INT_RBAE) {
260 printk("%s: receive buffer area exhausted\n", dev->name);
261 lp->stats.rx_dropped++;
262 }
263 409
264 /* counter overruns; all counters are 16bit wide */ 410 /* transmit error */
265 if (status & SONIC_INT_FAE) 411 if (status & SONIC_INT_TXER) {
266 lp->stats.rx_frame_errors += 65536; 412 if ((SONIC_READ(SONIC_TCR) & SONIC_TCR_FU) && (sonic_debug > 2))
267 if (status & SONIC_INT_CRC) 413 printk(KERN_ERR "%s: tx fifo underrun\n", dev->name);
268 lp->stats.rx_crc_errors += 65536; 414 SONIC_WRITE(SONIC_ISR, SONIC_INT_TXER); /* clear the interrupt */
269 if (status & SONIC_INT_MP) 415 }
270 lp->stats.rx_missed_errors += 65536;
271 416
272 /* transmit error */ 417 /* bus retry */
273 if (status & SONIC_INT_TXER) 418 if (status & SONIC_INT_BR) {
274 lp->stats.tx_errors++; 419 printk(KERN_ERR "%s: Bus retry occurred! Device interrupt disabled.\n",
420 dev->name);
421 /* ... to help debug DMA problems causing endless interrupts. */
422 /* Bounce the eth interface to turn on the interrupt again. */
423 SONIC_WRITE(SONIC_IMR, 0);
424 SONIC_WRITE(SONIC_ISR, SONIC_INT_BR); /* clear the interrupt */
425 }
275 426
276 /* 427 /* load CAM done */
277 * clear interrupt bits and return 428 if (status & SONIC_INT_LCD)
278 */ 429 SONIC_WRITE(SONIC_ISR, SONIC_INT_LCD); /* clear the interrupt */
279 SONIC_WRITE(SONIC_ISR, status); 430 } while((status = SONIC_READ(SONIC_ISR) & SONIC_IMR_DEFAULT));
280 return IRQ_HANDLED; 431 return IRQ_HANDLED;
281} 432}
282 433
283/* 434/*
284 * We have a good packet(s), get it/them out of the buffers. 435 * We have a good packet(s), pass it/them up the network stack.
285 */ 436 */
286static void sonic_rx(struct net_device *dev) 437static void sonic_rx(struct net_device *dev)
287{ 438{
288 unsigned int base_addr = dev->base_addr; 439 struct sonic_local *lp = netdev_priv(dev);
289 struct sonic_local *lp = (struct sonic_local *) dev->priv;
290 sonic_rd_t *rd = &lp->rda[lp->cur_rx & SONIC_RDS_MASK];
291 int status; 440 int status;
292 441 int entry = lp->cur_rx;
293 while (rd->in_use == 0) { 442
294 struct sk_buff *skb; 443 while (sonic_rda_get(dev, entry, SONIC_RD_IN_USE) == 0) {
444 struct sk_buff *used_skb;
445 struct sk_buff *new_skb;
446 dma_addr_t new_laddr;
447 u16 bufadr_l;
448 u16 bufadr_h;
295 int pkt_len; 449 int pkt_len;
296 unsigned char *pkt_ptr;
297 450
298 status = rd->rx_status; 451 status = sonic_rda_get(dev, entry, SONIC_RD_STATUS);
299 if (sonic_debug > 3)
300 printk("status %x, cur_rx %d, cur_rra %x\n",
301 status, lp->cur_rx, lp->cur_rra);
302 if (status & SONIC_RCR_PRX) { 452 if (status & SONIC_RCR_PRX) {
303 pkt_len = rd->rx_pktlen;
304 pkt_ptr =
305 (char *)
306 sonic_chiptomem((rd->rx_pktptr_h << 16) +
307 rd->rx_pktptr_l);
308
309 if (sonic_debug > 3)
310 printk
311 ("pktptr %p (rba %p) h:%x l:%x, bsize h:%x l:%x\n",
312 pkt_ptr, lp->rba, rd->rx_pktptr_h,
313 rd->rx_pktptr_l,
314 SONIC_READ(SONIC_RBWC1),
315 SONIC_READ(SONIC_RBWC0));
316
317 /* Malloc up new buffer. */ 453 /* Malloc up new buffer. */
318 skb = dev_alloc_skb(pkt_len + 2); 454 new_skb = dev_alloc_skb(SONIC_RBSIZE + 2);
319 if (skb == NULL) { 455 if (new_skb == NULL) {
320 printk 456 printk(KERN_ERR "%s: Memory squeeze, dropping packet.\n", dev->name);
321 ("%s: Memory squeeze, dropping packet.\n", 457 lp->stats.rx_dropped++;
322 dev->name); 458 break;
459 }
460 new_skb->dev = dev;
461 /* provide 16 byte IP header alignment unless DMA requires otherwise */
462 if(SONIC_BUS_SCALE(lp->dma_bitmode) == 2)
463 skb_reserve(new_skb, 2);
464
465 new_laddr = dma_map_single(lp->device, skb_put(new_skb, SONIC_RBSIZE),
466 SONIC_RBSIZE, DMA_FROM_DEVICE);
467 if (!new_laddr) {
468 dev_kfree_skb(new_skb);
469 printk(KERN_ERR "%s: Failed to map rx buffer, dropping packet.\n", dev->name);
323 lp->stats.rx_dropped++; 470 lp->stats.rx_dropped++;
324 break; 471 break;
325 } 472 }
326 skb->dev = dev; 473
327 skb_reserve(skb, 2); /* 16 byte align */ 474 /* now we have a new skb to replace it, pass the used one up the stack */
328 skb_put(skb, pkt_len); /* Make room */ 475 dma_unmap_single(lp->device, lp->rx_laddr[entry], SONIC_RBSIZE, DMA_FROM_DEVICE);
329 eth_copy_and_sum(skb, pkt_ptr, pkt_len, 0); 476 used_skb = lp->rx_skb[entry];
330 skb->protocol = eth_type_trans(skb, dev); 477 pkt_len = sonic_rda_get(dev, entry, SONIC_RD_PKTLEN);
331 netif_rx(skb); /* pass the packet to upper layers */ 478 skb_trim(used_skb, pkt_len);
479 used_skb->protocol = eth_type_trans(used_skb, dev);
480 netif_rx(used_skb);
332 dev->last_rx = jiffies; 481 dev->last_rx = jiffies;
333 lp->stats.rx_packets++; 482 lp->stats.rx_packets++;
334 lp->stats.rx_bytes += pkt_len; 483 lp->stats.rx_bytes += pkt_len;
335 484
485 /* and insert the new skb */
486 lp->rx_laddr[entry] = new_laddr;
487 lp->rx_skb[entry] = new_skb;
488
489 bufadr_l = (unsigned long)new_laddr & 0xffff;
490 bufadr_h = (unsigned long)new_laddr >> 16;
491 sonic_rra_put(dev, entry, SONIC_RR_BUFADR_L, bufadr_l);
492 sonic_rra_put(dev, entry, SONIC_RR_BUFADR_H, bufadr_h);
336 } else { 493 } else {
337 /* This should only happen, if we enable accepting broken packets. */ 494 /* This should only happen, if we enable accepting broken packets. */
338 lp->stats.rx_errors++; 495 lp->stats.rx_errors++;
@@ -341,29 +498,35 @@ static void sonic_rx(struct net_device *dev)
341 if (status & SONIC_RCR_CRCR) 498 if (status & SONIC_RCR_CRCR)
342 lp->stats.rx_crc_errors++; 499 lp->stats.rx_crc_errors++;
343 } 500 }
344
345 rd->in_use = 1;
346 rd = &lp->rda[(++lp->cur_rx) & SONIC_RDS_MASK];
347 /* now give back the buffer to the receive buffer area */
348 if (status & SONIC_RCR_LPKT) { 501 if (status & SONIC_RCR_LPKT) {
349 /* 502 /*
350 * this was the last packet out of the current receice buffer 503 * this was the last packet out of the current receive buffer
351 * give the buffer back to the SONIC 504 * give the buffer back to the SONIC
352 */ 505 */
353 lp->cur_rra += sizeof(sonic_rr_t); 506 lp->cur_rwp += SIZEOF_SONIC_RR * SONIC_BUS_SCALE(lp->dma_bitmode);
354 if (lp->cur_rra > 507 if (lp->cur_rwp >= lp->rra_end) lp->cur_rwp = lp->rra_laddr & 0xffff;
355 (lp->rra_laddr + 508 SONIC_WRITE(SONIC_RWP, lp->cur_rwp);
356 (SONIC_NUM_RRS - 509 if (SONIC_READ(SONIC_ISR) & SONIC_INT_RBE) {
357 1) * sizeof(sonic_rr_t))) lp->cur_rra = 510 if (sonic_debug > 2)
358 lp->rra_laddr; 511 printk("%s: rx buffer exhausted\n", dev->name);
359 SONIC_WRITE(SONIC_RWP, lp->cur_rra & 0xffff); 512 SONIC_WRITE(SONIC_ISR, SONIC_INT_RBE); /* clear the flag */
513 }
360 } else 514 } else
361 printk 515 printk(KERN_ERR "%s: rx desc without RCR_LPKT. Shouldn't happen !?\n",
362 ("%s: rx desc without RCR_LPKT. Shouldn't happen !?\n",
363 dev->name); 516 dev->name);
517 /*
518 * give back the descriptor
519 */
520 sonic_rda_put(dev, entry, SONIC_RD_LINK,
521 sonic_rda_get(dev, entry, SONIC_RD_LINK) | SONIC_EOL);
522 sonic_rda_put(dev, entry, SONIC_RD_IN_USE, 1);
523 sonic_rda_put(dev, lp->eol_rx, SONIC_RD_LINK,
524 sonic_rda_get(dev, lp->eol_rx, SONIC_RD_LINK) & ~SONIC_EOL);
525 lp->eol_rx = entry;
526 lp->cur_rx = entry = (entry + 1) & SONIC_RDS_MASK;
364 } 527 }
365 /* 528 /*
366 * If any worth-while packets have been received, dev_rint() 529 * If any worth-while packets have been received, netif_rx()
367 * has done a mark_bh(NET_BH) for us and will work on them 530 * has done a mark_bh(NET_BH) for us and will work on them
368 * when we get to the bottom-half routine. 531 * when we get to the bottom-half routine.
369 */ 532 */
@@ -376,8 +539,7 @@ static void sonic_rx(struct net_device *dev)
376 */ 539 */
377static struct net_device_stats *sonic_get_stats(struct net_device *dev) 540static struct net_device_stats *sonic_get_stats(struct net_device *dev)
378{ 541{
379 struct sonic_local *lp = (struct sonic_local *) dev->priv; 542 struct sonic_local *lp = netdev_priv(dev);
380 unsigned int base_addr = dev->base_addr;
381 543
382 /* read the tally counter from the SONIC and reset them */ 544 /* read the tally counter from the SONIC and reset them */
383 lp->stats.rx_crc_errors += SONIC_READ(SONIC_CRCT); 545 lp->stats.rx_crc_errors += SONIC_READ(SONIC_CRCT);
@@ -396,8 +558,7 @@ static struct net_device_stats *sonic_get_stats(struct net_device *dev)
396 */ 558 */
397static void sonic_multicast_list(struct net_device *dev) 559static void sonic_multicast_list(struct net_device *dev)
398{ 560{
399 struct sonic_local *lp = (struct sonic_local *) dev->priv; 561 struct sonic_local *lp = netdev_priv(dev);
400 unsigned int base_addr = dev->base_addr;
401 unsigned int rcr; 562 unsigned int rcr;
402 struct dev_mc_list *dmi = dev->mc_list; 563 struct dev_mc_list *dmi = dev->mc_list;
403 unsigned char *addr; 564 unsigned char *addr;
@@ -413,20 +574,15 @@ static void sonic_multicast_list(struct net_device *dev)
413 rcr |= SONIC_RCR_AMC; 574 rcr |= SONIC_RCR_AMC;
414 } else { 575 } else {
415 if (sonic_debug > 2) 576 if (sonic_debug > 2)
416 printk 577 printk("sonic_multicast_list: mc_count %d\n", dev->mc_count);
417 ("sonic_multicast_list: mc_count %d\n", 578 sonic_set_cam_enable(dev, 1); /* always enable our own address */
418 dev->mc_count);
419 lp->cda.cam_enable = 1; /* always enable our own address */
420 for (i = 1; i <= dev->mc_count; i++) { 579 for (i = 1; i <= dev->mc_count; i++) {
421 addr = dmi->dmi_addr; 580 addr = dmi->dmi_addr;
422 dmi = dmi->next; 581 dmi = dmi->next;
423 lp->cda.cam_desc[i].cam_cap0 = 582 sonic_cda_put(dev, i, SONIC_CD_CAP0, addr[1] << 8 | addr[0]);
424 addr[1] << 8 | addr[0]; 583 sonic_cda_put(dev, i, SONIC_CD_CAP1, addr[3] << 8 | addr[2]);
425 lp->cda.cam_desc[i].cam_cap1 = 584 sonic_cda_put(dev, i, SONIC_CD_CAP2, addr[5] << 8 | addr[4]);
426 addr[3] << 8 | addr[2]; 585 sonic_set_cam_enable(dev, sonic_get_cam_enable(dev) | (1 << i));
427 lp->cda.cam_desc[i].cam_cap2 =
428 addr[5] << 8 | addr[4];
429 lp->cda.cam_enable |= (1 << i);
430 } 586 }
431 SONIC_WRITE(SONIC_CDC, 16); 587 SONIC_WRITE(SONIC_CDC, 16);
432 /* issue Load CAM command */ 588 /* issue Load CAM command */
@@ -447,19 +603,16 @@ static void sonic_multicast_list(struct net_device *dev)
447 */ 603 */
448static int sonic_init(struct net_device *dev) 604static int sonic_init(struct net_device *dev)
449{ 605{
450 unsigned int base_addr = dev->base_addr;
451 unsigned int cmd; 606 unsigned int cmd;
452 struct sonic_local *lp = (struct sonic_local *) dev->priv; 607 struct sonic_local *lp = netdev_priv(dev);
453 unsigned int rra_start;
454 unsigned int rra_end;
455 int i; 608 int i;
456 609
457 /* 610 /*
458 * put the Sonic into software-reset mode and 611 * put the Sonic into software-reset mode and
459 * disable all interrupts 612 * disable all interrupts
460 */ 613 */
461 SONIC_WRITE(SONIC_ISR, 0x7fff);
462 SONIC_WRITE(SONIC_IMR, 0); 614 SONIC_WRITE(SONIC_IMR, 0);
615 SONIC_WRITE(SONIC_ISR, 0x7fff);
463 SONIC_WRITE(SONIC_CMD, SONIC_CR_RST); 616 SONIC_WRITE(SONIC_CMD, SONIC_CR_RST);
464 617
465 /* 618 /*
@@ -475,34 +628,32 @@ static int sonic_init(struct net_device *dev)
475 if (sonic_debug > 2) 628 if (sonic_debug > 2)
476 printk("sonic_init: initialize receive resource area\n"); 629 printk("sonic_init: initialize receive resource area\n");
477 630
478 rra_start = lp->rra_laddr & 0xffff;
479 rra_end =
480 (rra_start + (SONIC_NUM_RRS * sizeof(sonic_rr_t))) & 0xffff;
481
482 for (i = 0; i < SONIC_NUM_RRS; i++) { 631 for (i = 0; i < SONIC_NUM_RRS; i++) {
483 lp->rra[i].rx_bufadr_l = 632 u16 bufadr_l = (unsigned long)lp->rx_laddr[i] & 0xffff;
484 (lp->rba_laddr + i * SONIC_RBSIZE) & 0xffff; 633 u16 bufadr_h = (unsigned long)lp->rx_laddr[i] >> 16;
485 lp->rra[i].rx_bufadr_h = 634 sonic_rra_put(dev, i, SONIC_RR_BUFADR_L, bufadr_l);
486 (lp->rba_laddr + i * SONIC_RBSIZE) >> 16; 635 sonic_rra_put(dev, i, SONIC_RR_BUFADR_H, bufadr_h);
487 lp->rra[i].rx_bufsize_l = SONIC_RBSIZE >> 1; 636 sonic_rra_put(dev, i, SONIC_RR_BUFSIZE_L, SONIC_RBSIZE >> 1);
488 lp->rra[i].rx_bufsize_h = 0; 637 sonic_rra_put(dev, i, SONIC_RR_BUFSIZE_H, 0);
489 } 638 }
490 639
491 /* initialize all RRA registers */ 640 /* initialize all RRA registers */
492 SONIC_WRITE(SONIC_RSA, rra_start); 641 lp->rra_end = (lp->rra_laddr + SONIC_NUM_RRS * SIZEOF_SONIC_RR *
493 SONIC_WRITE(SONIC_REA, rra_end); 642 SONIC_BUS_SCALE(lp->dma_bitmode)) & 0xffff;
494 SONIC_WRITE(SONIC_RRP, rra_start); 643 lp->cur_rwp = (lp->rra_laddr + (SONIC_NUM_RRS - 1) * SIZEOF_SONIC_RR *
495 SONIC_WRITE(SONIC_RWP, rra_end); 644 SONIC_BUS_SCALE(lp->dma_bitmode)) & 0xffff;
645
646 SONIC_WRITE(SONIC_RSA, lp->rra_laddr & 0xffff);
647 SONIC_WRITE(SONIC_REA, lp->rra_end);
648 SONIC_WRITE(SONIC_RRP, lp->rra_laddr & 0xffff);
649 SONIC_WRITE(SONIC_RWP, lp->cur_rwp);
496 SONIC_WRITE(SONIC_URRA, lp->rra_laddr >> 16); 650 SONIC_WRITE(SONIC_URRA, lp->rra_laddr >> 16);
497 SONIC_WRITE(SONIC_EOBC, (SONIC_RBSIZE - 2) >> 1); 651 SONIC_WRITE(SONIC_EOBC, (SONIC_RBSIZE >> 1) - (lp->dma_bitmode ? 2 : 1));
498
499 lp->cur_rra =
500 lp->rra_laddr + (SONIC_NUM_RRS - 1) * sizeof(sonic_rr_t);
501 652
502 /* load the resource pointers */ 653 /* load the resource pointers */
503 if (sonic_debug > 3) 654 if (sonic_debug > 3)
504 printk("sonic_init: issueing RRRA command\n"); 655 printk("sonic_init: issuing RRRA command\n");
505 656
506 SONIC_WRITE(SONIC_CMD, SONIC_CR_RRRA); 657 SONIC_WRITE(SONIC_CMD, SONIC_CR_RRRA);
507 i = 0; 658 i = 0;
508 while (i++ < 100) { 659 while (i++ < 100) {
@@ -511,27 +662,30 @@ static int sonic_init(struct net_device *dev)
511 } 662 }
512 663
513 if (sonic_debug > 2) 664 if (sonic_debug > 2)
514 printk("sonic_init: status=%x\n", SONIC_READ(SONIC_CMD)); 665 printk("sonic_init: status=%x i=%d\n", SONIC_READ(SONIC_CMD), i);
515 666
516 /* 667 /*
517 * Initialize the receive descriptors so that they 668 * Initialize the receive descriptors so that they
518 * become a circular linked list, ie. let the last 669 * become a circular linked list, ie. let the last
519 * descriptor point to the first again. 670 * descriptor point to the first again.
520 */ 671 */
521 if (sonic_debug > 2) 672 if (sonic_debug > 2)
522 printk("sonic_init: initialize receive descriptors\n"); 673 printk("sonic_init: initialize receive descriptors\n");
523 for (i = 0; i < SONIC_NUM_RDS; i++) { 674 for (i=0; i<SONIC_NUM_RDS; i++) {
524 lp->rda[i].rx_status = 0; 675 sonic_rda_put(dev, i, SONIC_RD_STATUS, 0);
525 lp->rda[i].rx_pktlen = 0; 676 sonic_rda_put(dev, i, SONIC_RD_PKTLEN, 0);
526 lp->rda[i].rx_pktptr_l = 0; 677 sonic_rda_put(dev, i, SONIC_RD_PKTPTR_L, 0);
527 lp->rda[i].rx_pktptr_h = 0; 678 sonic_rda_put(dev, i, SONIC_RD_PKTPTR_H, 0);
528 lp->rda[i].rx_seqno = 0; 679 sonic_rda_put(dev, i, SONIC_RD_SEQNO, 0);
529 lp->rda[i].in_use = 1; 680 sonic_rda_put(dev, i, SONIC_RD_IN_USE, 1);
530 lp->rda[i].link = 681 sonic_rda_put(dev, i, SONIC_RD_LINK,
531 lp->rda_laddr + (i + 1) * sizeof(sonic_rd_t); 682 lp->rda_laddr +
683 ((i+1) * SIZEOF_SONIC_RD * SONIC_BUS_SCALE(lp->dma_bitmode)));
532 } 684 }
533 /* fix last descriptor */ 685 /* fix last descriptor */
534 lp->rda[SONIC_NUM_RDS - 1].link = lp->rda_laddr; 686 sonic_rda_put(dev, SONIC_NUM_RDS - 1, SONIC_RD_LINK,
687 (lp->rda_laddr & 0xffff) | SONIC_EOL);
688 lp->eol_rx = SONIC_NUM_RDS - 1;
535 lp->cur_rx = 0; 689 lp->cur_rx = 0;
536 SONIC_WRITE(SONIC_URDA, lp->rda_laddr >> 16); 690 SONIC_WRITE(SONIC_URDA, lp->rda_laddr >> 16);
537 SONIC_WRITE(SONIC_CRDA, lp->rda_laddr & 0xffff); 691 SONIC_WRITE(SONIC_CRDA, lp->rda_laddr & 0xffff);
@@ -542,34 +696,34 @@ static int sonic_init(struct net_device *dev)
542 if (sonic_debug > 2) 696 if (sonic_debug > 2)
543 printk("sonic_init: initialize transmit descriptors\n"); 697 printk("sonic_init: initialize transmit descriptors\n");
544 for (i = 0; i < SONIC_NUM_TDS; i++) { 698 for (i = 0; i < SONIC_NUM_TDS; i++) {
545 lp->tda[i].tx_status = 0; 699 sonic_tda_put(dev, i, SONIC_TD_STATUS, 0);
546 lp->tda[i].tx_config = 0; 700 sonic_tda_put(dev, i, SONIC_TD_CONFIG, 0);
547 lp->tda[i].tx_pktsize = 0; 701 sonic_tda_put(dev, i, SONIC_TD_PKTSIZE, 0);
548 lp->tda[i].tx_frag_count = 0; 702 sonic_tda_put(dev, i, SONIC_TD_FRAG_COUNT, 0);
549 lp->tda[i].link = 703 sonic_tda_put(dev, i, SONIC_TD_LINK,
550 (lp->tda_laddr + 704 (lp->tda_laddr & 0xffff) +
551 (i + 1) * sizeof(sonic_td_t)) | SONIC_END_OF_LINKS; 705 (i + 1) * SIZEOF_SONIC_TD * SONIC_BUS_SCALE(lp->dma_bitmode));
706 lp->tx_skb[i] = NULL;
552 } 707 }
553 lp->tda[SONIC_NUM_TDS - 1].link = 708 /* fix last descriptor */
554 (lp->tda_laddr & 0xffff) | SONIC_END_OF_LINKS; 709 sonic_tda_put(dev, SONIC_NUM_TDS - 1, SONIC_TD_LINK,
710 (lp->tda_laddr & 0xffff));
555 711
556 SONIC_WRITE(SONIC_UTDA, lp->tda_laddr >> 16); 712 SONIC_WRITE(SONIC_UTDA, lp->tda_laddr >> 16);
557 SONIC_WRITE(SONIC_CTDA, lp->tda_laddr & 0xffff); 713 SONIC_WRITE(SONIC_CTDA, lp->tda_laddr & 0xffff);
558 lp->cur_tx = lp->dirty_tx = 0; 714 lp->cur_tx = lp->next_tx = 0;
559 715 lp->eol_tx = SONIC_NUM_TDS - 1;
716
560 /* 717 /*
561 * put our own address to CAM desc[0] 718 * put our own address to CAM desc[0]
562 */ 719 */
563 lp->cda.cam_desc[0].cam_cap0 = 720 sonic_cda_put(dev, 0, SONIC_CD_CAP0, dev->dev_addr[1] << 8 | dev->dev_addr[0]);
564 dev->dev_addr[1] << 8 | dev->dev_addr[0]; 721 sonic_cda_put(dev, 0, SONIC_CD_CAP1, dev->dev_addr[3] << 8 | dev->dev_addr[2]);
565 lp->cda.cam_desc[0].cam_cap1 = 722 sonic_cda_put(dev, 0, SONIC_CD_CAP2, dev->dev_addr[5] << 8 | dev->dev_addr[4]);
566 dev->dev_addr[3] << 8 | dev->dev_addr[2]; 723 sonic_set_cam_enable(dev, 1);
567 lp->cda.cam_desc[0].cam_cap2 =
568 dev->dev_addr[5] << 8 | dev->dev_addr[4];
569 lp->cda.cam_enable = 1;
570 724
571 for (i = 0; i < 16; i++) 725 for (i = 0; i < 16; i++)
572 lp->cda.cam_desc[i].cam_entry_pointer = i; 726 sonic_cda_put(dev, i, SONIC_CD_ENTRY_POINTER, i);
573 727
574 /* 728 /*
575 * initialize CAM registers 729 * initialize CAM registers
@@ -588,8 +742,8 @@ static int sonic_init(struct net_device *dev)
588 break; 742 break;
589 } 743 }
590 if (sonic_debug > 2) { 744 if (sonic_debug > 2) {
591 printk("sonic_init: CMD=%x, ISR=%x\n", 745 printk("sonic_init: CMD=%x, ISR=%x\n, i=%d",
592 SONIC_READ(SONIC_CMD), SONIC_READ(SONIC_ISR)); 746 SONIC_READ(SONIC_CMD), SONIC_READ(SONIC_ISR), i);
593 } 747 }
594 748
595 /* 749 /*
@@ -604,7 +758,7 @@ static int sonic_init(struct net_device *dev)
604 758
605 cmd = SONIC_READ(SONIC_CMD); 759 cmd = SONIC_READ(SONIC_CMD);
606 if ((cmd & SONIC_CR_RXEN) == 0 || (cmd & SONIC_CR_STP) == 0) 760 if ((cmd & SONIC_CR_RXEN) == 0 || (cmd & SONIC_CR_STP) == 0)
607 printk("sonic_init: failed, status=%x\n", cmd); 761 printk(KERN_ERR "sonic_init: failed, status=%x\n", cmd);
608 762
609 if (sonic_debug > 2) 763 if (sonic_debug > 2)
610 printk("sonic_init: new status=%x\n", 764 printk("sonic_init: new status=%x\n",
diff --git a/drivers/net/sonic.h b/drivers/net/sonic.h
index c4a6d58e4afb..cede969a8baa 100644
--- a/drivers/net/sonic.h
+++ b/drivers/net/sonic.h
@@ -1,5 +1,5 @@
1/* 1/*
2 * Helpfile for sonic.c 2 * Header file for sonic.c
3 * 3 *
4 * (C) Waldorf Electronics, Germany 4 * (C) Waldorf Electronics, Germany
5 * Written by Andreas Busse 5 * Written by Andreas Busse
@@ -9,10 +9,16 @@
9 * and pad structure members must be exchanged. Also, the structures 9 * and pad structure members must be exchanged. Also, the structures
10 * need to be changed accordingly to the bus size. 10 * need to be changed accordingly to the bus size.
11 * 11 *
12 * 981229 MSch: did just that for the 68k Mac port (32 bit, big endian), 12 * 981229 MSch: did just that for the 68k Mac port (32 bit, big endian)
13 * see CONFIG_MACSONIC branch below.
14 * 13 *
14 * 990611 David Huggins-Daines <dhd@debian.org>: This machine abstraction
15 * does not cope with 16-bit bus sizes very well. Therefore I have
16 * rewritten it with ugly macros and evil inlines.
17 *
18 * 050625 Finn Thain: introduced more 32-bit cards and dhd's support
19 * for 16-bit cards (from the mac68k project).
15 */ 20 */
21
16#ifndef SONIC_H 22#ifndef SONIC_H
17#define SONIC_H 23#define SONIC_H
18 24
@@ -83,6 +89,7 @@
83/* 89/*
84 * Error counters 90 * Error counters
85 */ 91 */
92
86#define SONIC_CRCT 0x2c 93#define SONIC_CRCT 0x2c
87#define SONIC_FAET 0x2d 94#define SONIC_FAET 0x2d
88#define SONIC_MPT 0x2e 95#define SONIC_MPT 0x2e
@@ -182,14 +189,14 @@
182 189
183#define SONIC_INT_BR 0x4000 190#define SONIC_INT_BR 0x4000
184#define SONIC_INT_HBL 0x2000 191#define SONIC_INT_HBL 0x2000
185#define SONIC_INT_LCD 0x1000 192#define SONIC_INT_LCD 0x1000
186#define SONIC_INT_PINT 0x0800 193#define SONIC_INT_PINT 0x0800
187#define SONIC_INT_PKTRX 0x0400 194#define SONIC_INT_PKTRX 0x0400
188#define SONIC_INT_TXDN 0x0200 195#define SONIC_INT_TXDN 0x0200
189#define SONIC_INT_TXER 0x0100 196#define SONIC_INT_TXER 0x0100
190#define SONIC_INT_TC 0x0080 197#define SONIC_INT_TC 0x0080
191#define SONIC_INT_RDE 0x0040 198#define SONIC_INT_RDE 0x0040
192#define SONIC_INT_RBE 0x0020 199#define SONIC_INT_RBE 0x0020
193#define SONIC_INT_RBAE 0x0010 200#define SONIC_INT_RBAE 0x0010
194#define SONIC_INT_CRC 0x0008 201#define SONIC_INT_CRC 0x0008
195#define SONIC_INT_FAE 0x0004 202#define SONIC_INT_FAE 0x0004
@@ -201,224 +208,61 @@
201 * The interrupts we allow. 208 * The interrupts we allow.
202 */ 209 */
203 210
204#define SONIC_IMR_DEFAULT (SONIC_INT_BR | \ 211#define SONIC_IMR_DEFAULT ( SONIC_INT_BR | \
205 SONIC_INT_LCD | \ 212 SONIC_INT_LCD | \
206 SONIC_INT_PINT | \ 213 SONIC_INT_RFO | \
207 SONIC_INT_PKTRX | \ 214 SONIC_INT_PKTRX | \
208 SONIC_INT_TXDN | \ 215 SONIC_INT_TXDN | \
209 SONIC_INT_TXER | \ 216 SONIC_INT_TXER | \
210 SONIC_INT_RDE | \ 217 SONIC_INT_RDE | \
211 SONIC_INT_RBE | \
212 SONIC_INT_RBAE | \ 218 SONIC_INT_RBAE | \
213 SONIC_INT_CRC | \ 219 SONIC_INT_CRC | \
214 SONIC_INT_FAE | \ 220 SONIC_INT_FAE | \
215 SONIC_INT_MP) 221 SONIC_INT_MP)
216 222
217 223
218#define SONIC_END_OF_LINKS 0x0001 224#define SONIC_EOL 0x0001
219
220
221#ifdef CONFIG_MACSONIC
222/*
223 * Big endian like structures on 680x0 Macs
224 */
225
226typedef struct {
227 u32 rx_bufadr_l; /* receive buffer ptr */
228 u32 rx_bufadr_h;
229
230 u32 rx_bufsize_l; /* no. of words in the receive buffer */
231 u32 rx_bufsize_h;
232} sonic_rr_t;
233
234/*
235 * Sonic receive descriptor. Receive descriptors are
236 * kept in a linked list of these structures.
237 */
238
239typedef struct {
240 SREGS_PAD(pad0);
241 u16 rx_status; /* status after reception of a packet */
242 SREGS_PAD(pad1);
243 u16 rx_pktlen; /* length of the packet incl. CRC */
244
245 /*
246 * Pointers to the location in the receive buffer area (RBA)
247 * where the packet resides. A packet is always received into
248 * a contiguous piece of memory.
249 */
250 SREGS_PAD(pad2);
251 u16 rx_pktptr_l;
252 SREGS_PAD(pad3);
253 u16 rx_pktptr_h;
254
255 SREGS_PAD(pad4);
256 u16 rx_seqno; /* sequence no. */
257
258 SREGS_PAD(pad5);
259 u16 link; /* link to next RDD (end if EOL bit set) */
260
261 /*
262 * Owner of this descriptor, 0= driver, 1=sonic
263 */
264
265 SREGS_PAD(pad6);
266 u16 in_use;
267
268 caddr_t rda_next; /* pointer to next RD */
269} sonic_rd_t;
270
271
272/*
273 * Describes a Transmit Descriptor
274 */
275typedef struct {
276 SREGS_PAD(pad0);
277 u16 tx_status; /* status after transmission of a packet */
278 SREGS_PAD(pad1);
279 u16 tx_config; /* transmit configuration for this packet */
280 SREGS_PAD(pad2);
281 u16 tx_pktsize; /* size of the packet to be transmitted */
282 SREGS_PAD(pad3);
283 u16 tx_frag_count; /* no. of fragments */
284
285 SREGS_PAD(pad4);
286 u16 tx_frag_ptr_l;
287 SREGS_PAD(pad5);
288 u16 tx_frag_ptr_h;
289 SREGS_PAD(pad6);
290 u16 tx_frag_size;
291
292 SREGS_PAD(pad7);
293 u16 link; /* ptr to next descriptor */
294} sonic_td_t;
295
296
297/*
298 * Describes an entry in the CAM Descriptor Area.
299 */
300
301typedef struct {
302 SREGS_PAD(pad0);
303 u16 cam_entry_pointer;
304 SREGS_PAD(pad1);
305 u16 cam_cap0;
306 SREGS_PAD(pad2);
307 u16 cam_cap1;
308 SREGS_PAD(pad3);
309 u16 cam_cap2;
310} sonic_cd_t;
311
312#define CAM_DESCRIPTORS 16 225#define CAM_DESCRIPTORS 16
313 226
314 227/* Offsets in the various DMA buffers accessed by the SONIC */
315typedef struct { 228
316 sonic_cd_t cam_desc[CAM_DESCRIPTORS]; 229#define SONIC_BITMODE16 0
317 SREGS_PAD(pad); 230#define SONIC_BITMODE32 1
318 u16 cam_enable; 231#define SONIC_BUS_SCALE(bitmode) ((bitmode) ? 4 : 2)
319} sonic_cda_t; 232/* Note! These are all measured in bus-size units, so use SONIC_BUS_SCALE */
320 233#define SIZEOF_SONIC_RR 4
321#else /* original declarations, little endian 32 bit */ 234#define SONIC_RR_BUFADR_L 0
322 235#define SONIC_RR_BUFADR_H 1
323/* 236#define SONIC_RR_BUFSIZE_L 2
324 * structure definitions 237#define SONIC_RR_BUFSIZE_H 3
325 */ 238
326 239#define SIZEOF_SONIC_RD 7
327typedef struct { 240#define SONIC_RD_STATUS 0
328 u32 rx_bufadr_l; /* receive buffer ptr */ 241#define SONIC_RD_PKTLEN 1
329 u32 rx_bufadr_h; 242#define SONIC_RD_PKTPTR_L 2
330 243#define SONIC_RD_PKTPTR_H 3
331 u32 rx_bufsize_l; /* no. of words in the receive buffer */ 244#define SONIC_RD_SEQNO 4
332 u32 rx_bufsize_h; 245#define SONIC_RD_LINK 5
333} sonic_rr_t; 246#define SONIC_RD_IN_USE 6
334 247
335/* 248#define SIZEOF_SONIC_TD 8
336 * Sonic receive descriptor. Receive descriptors are 249#define SONIC_TD_STATUS 0
337 * kept in a linked list of these structures. 250#define SONIC_TD_CONFIG 1
338 */ 251#define SONIC_TD_PKTSIZE 2
339 252#define SONIC_TD_FRAG_COUNT 3
340typedef struct { 253#define SONIC_TD_FRAG_PTR_L 4
341 u16 rx_status; /* status after reception of a packet */ 254#define SONIC_TD_FRAG_PTR_H 5
342 SREGS_PAD(pad0); 255#define SONIC_TD_FRAG_SIZE 6
343 u16 rx_pktlen; /* length of the packet incl. CRC */ 256#define SONIC_TD_LINK 7
344 SREGS_PAD(pad1); 257
345 258#define SIZEOF_SONIC_CD 4
346 /* 259#define SONIC_CD_ENTRY_POINTER 0
347 * Pointers to the location in the receive buffer area (RBA) 260#define SONIC_CD_CAP0 1
348 * where the packet resides. A packet is always received into 261#define SONIC_CD_CAP1 2
349 * a contiguous piece of memory. 262#define SONIC_CD_CAP2 3
350 */ 263
351 u16 rx_pktptr_l; 264#define SIZEOF_SONIC_CDA ((CAM_DESCRIPTORS * SIZEOF_SONIC_CD) + 1)
352 SREGS_PAD(pad2); 265#define SONIC_CDA_CAM_ENABLE (CAM_DESCRIPTORS * SIZEOF_SONIC_CD)
353 u16 rx_pktptr_h;
354 SREGS_PAD(pad3);
355
356 u16 rx_seqno; /* sequence no. */
357 SREGS_PAD(pad4);
358
359 u16 link; /* link to next RDD (end if EOL bit set) */
360 SREGS_PAD(pad5);
361
362 /*
363 * Owner of this descriptor, 0= driver, 1=sonic
364 */
365
366 u16 in_use;
367 SREGS_PAD(pad6);
368
369 caddr_t rda_next; /* pointer to next RD */
370} sonic_rd_t;
371
372
373/*
374 * Describes a Transmit Descriptor
375 */
376typedef struct {
377 u16 tx_status; /* status after transmission of a packet */
378 SREGS_PAD(pad0);
379 u16 tx_config; /* transmit configuration for this packet */
380 SREGS_PAD(pad1);
381 u16 tx_pktsize; /* size of the packet to be transmitted */
382 SREGS_PAD(pad2);
383 u16 tx_frag_count; /* no. of fragments */
384 SREGS_PAD(pad3);
385
386 u16 tx_frag_ptr_l;
387 SREGS_PAD(pad4);
388 u16 tx_frag_ptr_h;
389 SREGS_PAD(pad5);
390 u16 tx_frag_size;
391 SREGS_PAD(pad6);
392
393 u16 link; /* ptr to next descriptor */
394 SREGS_PAD(pad7);
395} sonic_td_t;
396
397
398/*
399 * Describes an entry in the CAM Descriptor Area.
400 */
401
402typedef struct {
403 u16 cam_entry_pointer;
404 SREGS_PAD(pad0);
405 u16 cam_cap0;
406 SREGS_PAD(pad1);
407 u16 cam_cap1;
408 SREGS_PAD(pad2);
409 u16 cam_cap2;
410 SREGS_PAD(pad3);
411} sonic_cd_t;
412
413#define CAM_DESCRIPTORS 16
414
415
416typedef struct {
417 sonic_cd_t cam_desc[CAM_DESCRIPTORS];
418 u16 cam_enable;
419 SREGS_PAD(pad);
420} sonic_cda_t;
421#endif /* endianness */
422 266
423/* 267/*
424 * Some tunables for the buffer areas. Power of 2 is required 268 * Some tunables for the buffer areas. Power of 2 is required
@@ -426,44 +270,60 @@ typedef struct {
426 * 270 *
427 * MSch: use more buffer space for the slow m68k Macs! 271 * MSch: use more buffer space for the slow m68k Macs!
428 */ 272 */
429#ifdef CONFIG_MACSONIC 273#define SONIC_NUM_RRS 16 /* number of receive resources */
430#define SONIC_NUM_RRS 32 /* number of receive resources */ 274#define SONIC_NUM_RDS SONIC_NUM_RRS /* number of receive descriptors */
431#define SONIC_NUM_RDS SONIC_NUM_RRS /* number of receive descriptors */ 275#define SONIC_NUM_TDS 16 /* number of transmit descriptors */
432#define SONIC_NUM_TDS 32 /* number of transmit descriptors */
433#else
434#define SONIC_NUM_RRS 16 /* number of receive resources */
435#define SONIC_NUM_RDS SONIC_NUM_RRS /* number of receive descriptors */
436#define SONIC_NUM_TDS 16 /* number of transmit descriptors */
437#endif
438#define SONIC_RBSIZE 1520 /* size of one resource buffer */
439 276
440#define SONIC_RDS_MASK (SONIC_NUM_RDS-1) 277#define SONIC_RDS_MASK (SONIC_NUM_RDS-1)
441#define SONIC_TDS_MASK (SONIC_NUM_TDS-1) 278#define SONIC_TDS_MASK (SONIC_NUM_TDS-1)
442 279
280#define SONIC_RBSIZE 1520 /* size of one resource buffer */
281
282/* Again, measured in bus size units! */
283#define SIZEOF_SONIC_DESC (SIZEOF_SONIC_CDA \
284 + (SIZEOF_SONIC_TD * SONIC_NUM_TDS) \
285 + (SIZEOF_SONIC_RD * SONIC_NUM_RDS) \
286 + (SIZEOF_SONIC_RR * SONIC_NUM_RRS))
443 287
444/* Information that need to be kept for each board. */ 288/* Information that need to be kept for each board. */
445struct sonic_local { 289struct sonic_local {
446 sonic_cda_t cda; /* virtual CPU address of CDA */ 290 /* Bus size. 0 == 16 bits, 1 == 32 bits. */
447 sonic_td_t tda[SONIC_NUM_TDS]; /* transmit descriptor area */ 291 int dma_bitmode;
448 sonic_rr_t rra[SONIC_NUM_RRS]; /* receive resource area */ 292 /* Register offset within the longword (independent of endianness,
449 sonic_rd_t rda[SONIC_NUM_RDS]; /* receive descriptor area */ 293 and varies from one type of Macintosh SONIC to another
450 struct sk_buff *tx_skb[SONIC_NUM_TDS]; /* skbuffs for packets to transmit */ 294 (Aarrgh)) */
451 unsigned int tx_laddr[SONIC_NUM_TDS]; /* logical DMA address fro skbuffs */ 295 int reg_offset;
452 unsigned char *rba; /* start of receive buffer areas */ 296 void *descriptors;
453 unsigned int cda_laddr; /* logical DMA address of CDA */ 297 /* Crud. These areas have to be within the same 64K. Therefore
454 unsigned int tda_laddr; /* logical DMA address of TDA */ 298 we allocate a desriptors page, and point these to places within it. */
455 unsigned int rra_laddr; /* logical DMA address of RRA */ 299 void *cda; /* CAM descriptor area */
456 unsigned int rda_laddr; /* logical DMA address of RDA */ 300 void *tda; /* Transmit descriptor area */
457 unsigned int rba_laddr; /* logical DMA address of RBA */ 301 void *rra; /* Receive resource area */
458 unsigned int cur_rra; /* current indexes to resource areas */ 302 void *rda; /* Receive descriptor area */
303 struct sk_buff* volatile rx_skb[SONIC_NUM_RRS]; /* packets to be received */
304 struct sk_buff* volatile tx_skb[SONIC_NUM_TDS]; /* packets to be transmitted */
305 unsigned int tx_len[SONIC_NUM_TDS]; /* lengths of tx DMA mappings */
306 /* Logical DMA addresses on MIPS, bus addresses on m68k
307 * (so "laddr" is a bit misleading) */
308 dma_addr_t descriptors_laddr;
309 u32 cda_laddr; /* logical DMA address of CDA */
310 u32 tda_laddr; /* logical DMA address of TDA */
311 u32 rra_laddr; /* logical DMA address of RRA */
312 u32 rda_laddr; /* logical DMA address of RDA */
313 dma_addr_t rx_laddr[SONIC_NUM_RRS]; /* logical DMA addresses of rx skbuffs */
314 dma_addr_t tx_laddr[SONIC_NUM_TDS]; /* logical DMA addresses of tx skbuffs */
315 unsigned int rra_end;
316 unsigned int cur_rwp;
459 unsigned int cur_rx; 317 unsigned int cur_rx;
460 unsigned int cur_tx; 318 unsigned int cur_tx; /* first unacked transmit packet */
461 unsigned int dirty_tx; /* last unacked transmit packet */ 319 unsigned int eol_rx;
462 char tx_full; 320 unsigned int eol_tx; /* last unacked transmit packet */
321 unsigned int next_tx; /* next free TD */
322 struct device *device; /* generic device */
463 struct net_device_stats stats; 323 struct net_device_stats stats;
464}; 324};
465 325
466#define TX_TIMEOUT 6 326#define TX_TIMEOUT (3 * HZ)
467 327
468/* Index to functions, as function prototypes. */ 328/* Index to functions, as function prototypes. */
469 329
@@ -477,6 +337,114 @@ static void sonic_multicast_list(struct net_device *dev);
477static int sonic_init(struct net_device *dev); 337static int sonic_init(struct net_device *dev);
478static void sonic_tx_timeout(struct net_device *dev); 338static void sonic_tx_timeout(struct net_device *dev);
479 339
340/* Internal inlines for reading/writing DMA buffers. Note that bus
341 size and endianness matter here, whereas they don't for registers,
342 as far as we can tell. */
343/* OpenBSD calls this "SWO". I'd like to think that sonic_buf_put()
344 is a much better name. */
345static inline void sonic_buf_put(void* base, int bitmode,
346 int offset, __u16 val)
347{
348 if (bitmode)
349#ifdef __BIG_ENDIAN
350 ((__u16 *) base + (offset*2))[1] = val;
351#else
352 ((__u16 *) base + (offset*2))[0] = val;
353#endif
354 else
355 ((__u16 *) base)[offset] = val;
356}
357
358static inline __u16 sonic_buf_get(void* base, int bitmode,
359 int offset)
360{
361 if (bitmode)
362#ifdef __BIG_ENDIAN
363 return ((volatile __u16 *) base + (offset*2))[1];
364#else
365 return ((volatile __u16 *) base + (offset*2))[0];
366#endif
367 else
368 return ((volatile __u16 *) base)[offset];
369}
370
371/* Inlines that you should actually use for reading/writing DMA buffers */
372static inline void sonic_cda_put(struct net_device* dev, int entry,
373 int offset, __u16 val)
374{
375 struct sonic_local* lp = (struct sonic_local *) dev->priv;
376 sonic_buf_put(lp->cda, lp->dma_bitmode,
377 (entry * SIZEOF_SONIC_CD) + offset, val);
378}
379
380static inline __u16 sonic_cda_get(struct net_device* dev, int entry,
381 int offset)
382{
383 struct sonic_local* lp = (struct sonic_local *) dev->priv;
384 return sonic_buf_get(lp->cda, lp->dma_bitmode,
385 (entry * SIZEOF_SONIC_CD) + offset);
386}
387
388static inline void sonic_set_cam_enable(struct net_device* dev, __u16 val)
389{
390 struct sonic_local* lp = (struct sonic_local *) dev->priv;
391 sonic_buf_put(lp->cda, lp->dma_bitmode, SONIC_CDA_CAM_ENABLE, val);
392}
393
394static inline __u16 sonic_get_cam_enable(struct net_device* dev)
395{
396 struct sonic_local* lp = (struct sonic_local *) dev->priv;
397 return sonic_buf_get(lp->cda, lp->dma_bitmode, SONIC_CDA_CAM_ENABLE);
398}
399
400static inline void sonic_tda_put(struct net_device* dev, int entry,
401 int offset, __u16 val)
402{
403 struct sonic_local* lp = (struct sonic_local *) dev->priv;
404 sonic_buf_put(lp->tda, lp->dma_bitmode,
405 (entry * SIZEOF_SONIC_TD) + offset, val);
406}
407
408static inline __u16 sonic_tda_get(struct net_device* dev, int entry,
409 int offset)
410{
411 struct sonic_local* lp = (struct sonic_local *) dev->priv;
412 return sonic_buf_get(lp->tda, lp->dma_bitmode,
413 (entry * SIZEOF_SONIC_TD) + offset);
414}
415
416static inline void sonic_rda_put(struct net_device* dev, int entry,
417 int offset, __u16 val)
418{
419 struct sonic_local* lp = (struct sonic_local *) dev->priv;
420 sonic_buf_put(lp->rda, lp->dma_bitmode,
421 (entry * SIZEOF_SONIC_RD) + offset, val);
422}
423
424static inline __u16 sonic_rda_get(struct net_device* dev, int entry,
425 int offset)
426{
427 struct sonic_local* lp = (struct sonic_local *) dev->priv;
428 return sonic_buf_get(lp->rda, lp->dma_bitmode,
429 (entry * SIZEOF_SONIC_RD) + offset);
430}
431
432static inline void sonic_rra_put(struct net_device* dev, int entry,
433 int offset, __u16 val)
434{
435 struct sonic_local* lp = (struct sonic_local *) dev->priv;
436 sonic_buf_put(lp->rra, lp->dma_bitmode,
437 (entry * SIZEOF_SONIC_RR) + offset, val);
438}
439
440static inline __u16 sonic_rra_get(struct net_device* dev, int entry,
441 int offset)
442{
443 struct sonic_local* lp = (struct sonic_local *) dev->priv;
444 return sonic_buf_get(lp->rra, lp->dma_bitmode,
445 (entry * SIZEOF_SONIC_RR) + offset);
446}
447
480static const char *version = 448static const char *version =
481 "sonic.c:v0.92 20.9.98 tsbogend@alpha.franken.de\n"; 449 "sonic.c:v0.92 20.9.98 tsbogend@alpha.franken.de\n";
482 450
generated by cgit v1.2.2 (git 2.25.0) at 2024-11-27 07:27:52 -0500