2 * Network device driver for Cell Processor-Based Blade
4 * (C) Copyright IBM Corp. 2005
6 * Authors : Utz Bacher <utz.bacher@de.ibm.com>
7 * Jens Osterkamp <Jens.Osterkamp@de.ibm.com>
9 * This program is free software; you can redistribute it and/or modify
10 * it under the terms of the GNU General Public License as published by
11 * the Free Software Foundation; either version 2, or (at your option)
14 * This program is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 * GNU General Public License for more details.
19 * You should have received a copy of the GNU General Public License
20 * along with this program; if not, write to the Free Software
21 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
27 #include "sungem_phy.h"
29 extern int spider_net_stop(struct net_device *netdev);
30 extern int spider_net_open(struct net_device *netdev);
32 extern struct ethtool_ops spider_net_ethtool_ops;
34 extern char spider_net_driver_name[];
36 #define SPIDER_NET_MAX_FRAME 2312
37 #define SPIDER_NET_MAX_MTU 2294
38 #define SPIDER_NET_MIN_MTU 64
40 #define SPIDER_NET_RXBUF_ALIGN 128
42 #define SPIDER_NET_RX_DESCRIPTORS_DEFAULT 256
43 #define SPIDER_NET_RX_DESCRIPTORS_MIN 16
44 #define SPIDER_NET_RX_DESCRIPTORS_MAX 512
46 #define SPIDER_NET_TX_DESCRIPTORS_DEFAULT 256
47 #define SPIDER_NET_TX_DESCRIPTORS_MIN 16
48 #define SPIDER_NET_TX_DESCRIPTORS_MAX 512
50 #define SPIDER_NET_TX_TIMER 20
52 #define SPIDER_NET_RX_CSUM_DEFAULT 1
54 #define SPIDER_NET_WATCHDOG_TIMEOUT 50*HZ
55 #define SPIDER_NET_NAPI_WEIGHT 64
57 #define SPIDER_NET_FIRMWARE_SEQS 6
58 #define SPIDER_NET_FIRMWARE_SEQWORDS 1024
59 #define SPIDER_NET_FIRMWARE_LEN (SPIDER_NET_FIRMWARE_SEQS * \
60 SPIDER_NET_FIRMWARE_SEQWORDS * \
62 #define SPIDER_NET_FIRMWARE_NAME "spider_fw.bin"
64 /** spider_net SMMIO registers */
65 #define SPIDER_NET_GHIINT0STS 0x00000000
66 #define SPIDER_NET_GHIINT1STS 0x00000004
67 #define SPIDER_NET_GHIINT2STS 0x00000008
68 #define SPIDER_NET_GHIINT0MSK 0x00000010
69 #define SPIDER_NET_GHIINT1MSK 0x00000014
70 #define SPIDER_NET_GHIINT2MSK 0x00000018
72 #define SPIDER_NET_GRESUMINTNUM 0x00000020
73 #define SPIDER_NET_GREINTNUM 0x00000024
75 #define SPIDER_NET_GFFRMNUM 0x00000028
76 #define SPIDER_NET_GFAFRMNUM 0x0000002c
77 #define SPIDER_NET_GFBFRMNUM 0x00000030
78 #define SPIDER_NET_GFCFRMNUM 0x00000034
79 #define SPIDER_NET_GFDFRMNUM 0x00000038
81 /* clear them (don't use it) */
82 #define SPIDER_NET_GFREECNNUM 0x0000003c
83 #define SPIDER_NET_GONETIMENUM 0x00000040
85 #define SPIDER_NET_GTOUTFRMNUM 0x00000044
87 #define SPIDER_NET_GTXMDSET 0x00000050
88 #define SPIDER_NET_GPCCTRL 0x00000054
89 #define SPIDER_NET_GRXMDSET 0x00000058
90 #define SPIDER_NET_GIPSECINIT 0x0000005c
91 #define SPIDER_NET_GFTRESTRT 0x00000060
92 #define SPIDER_NET_GRXDMAEN 0x00000064
93 #define SPIDER_NET_GMRWOLCTRL 0x00000068
94 #define SPIDER_NET_GPCWOPCMD 0x0000006c
95 #define SPIDER_NET_GPCROPCMD 0x00000070
96 #define SPIDER_NET_GTTFRMCNT 0x00000078
97 #define SPIDER_NET_GTESTMD 0x0000007c
99 #define SPIDER_NET_GSINIT 0x00000080
100 #define SPIDER_NET_GSnPRGADR 0x00000084
101 #define SPIDER_NET_GSnPRGDAT 0x00000088
103 #define SPIDER_NET_GMACOPEMD 0x00000100
104 #define SPIDER_NET_GMACLENLMT 0x00000108
105 #define SPIDER_NET_GMACINTEN 0x00000118
106 #define SPIDER_NET_GMACPHYCTRL 0x00000120
108 #define SPIDER_NET_GMACAPAUSE 0x00000154
109 #define SPIDER_NET_GMACTXPAUSE 0x00000164
111 #define SPIDER_NET_GMACMODE 0x000001b0
112 #define SPIDER_NET_GMACBSTLMT 0x000001b4
114 #define SPIDER_NET_GMACUNIMACU 0x000001c0
115 #define SPIDER_NET_GMACUNIMACL 0x000001c8
117 #define SPIDER_NET_GMRMHFILnR 0x00000400
118 #define SPIDER_NET_MULTICAST_HASHES 256
120 #define SPIDER_NET_GMRUAFILnR 0x00000500
121 #define SPIDER_NET_GMRUA0FIL15R 0x00000578
123 #define SPIDER_NET_GTTQMSK 0x00000934
125 /* RX DMA controller registers, all 0x00000a.. are for DMA controller A,
126 * 0x00000b.. for DMA controller B, etc. */
127 #define SPIDER_NET_GDADCHA 0x00000a00
128 #define SPIDER_NET_GDADMACCNTR 0x00000a04
129 #define SPIDER_NET_GDACTDPA 0x00000a08
130 #define SPIDER_NET_GDACTDCNT 0x00000a0c
131 #define SPIDER_NET_GDACDBADDR 0x00000a20
132 #define SPIDER_NET_GDACDBSIZE 0x00000a24
133 #define SPIDER_NET_GDACNEXTDA 0x00000a28
134 #define SPIDER_NET_GDACCOMST 0x00000a2c
135 #define SPIDER_NET_GDAWBCOMST 0x00000a30
136 #define SPIDER_NET_GDAWBRSIZE 0x00000a34
137 #define SPIDER_NET_GDAWBVSIZE 0x00000a38
138 #define SPIDER_NET_GDAWBTRST 0x00000a3c
139 #define SPIDER_NET_GDAWBTRERR 0x00000a40
141 /* TX DMA controller registers */
142 #define SPIDER_NET_GDTDCHA 0x00000e00
143 #define SPIDER_NET_GDTDMACCNTR 0x00000e04
144 #define SPIDER_NET_GDTCDPA 0x00000e08
145 #define SPIDER_NET_GDTDMASEL 0x00000e14
147 #define SPIDER_NET_ECMODE 0x00000f00
148 /* clock and reset control register */
149 #define SPIDER_NET_CKRCTRL 0x00000ff0
151 /** SCONFIG registers */
152 #define SPIDER_NET_SCONFIG_IOACTE 0x00002810
154 /** interrupt mask registers */
155 #define SPIDER_NET_INT0_MASK_VALUE 0x3f7fe2c7
156 #define SPIDER_NET_INT1_MASK_VALUE 0xffff7ff7
157 /* no MAC aborts -> auto retransmission */
158 #define SPIDER_NET_INT2_MASK_VALUE 0xffef7ff1
160 /* we rely on flagged descriptor interrupts */
161 #define SPIDER_NET_FRAMENUM_VALUE 0x00000000
162 /* set this first, then the FRAMENUM_VALUE */
163 #define SPIDER_NET_GFXFRAMES_VALUE 0x00000000
165 #define SPIDER_NET_STOP_SEQ_VALUE 0x00000000
166 #define SPIDER_NET_RUN_SEQ_VALUE 0x0000007e
168 #define SPIDER_NET_PHY_CTRL_VALUE 0x00040040
169 /* #define SPIDER_NET_PHY_CTRL_VALUE 0x01070080*/
170 #define SPIDER_NET_RXMODE_VALUE 0x00000011
171 /* auto retransmission in case of MAC aborts */
172 #define SPIDER_NET_TXMODE_VALUE 0x00010000
173 #define SPIDER_NET_RESTART_VALUE 0x00000000
174 #define SPIDER_NET_WOL_VALUE 0x00001111
176 #define SPIDER_NET_WOL_VALUE 0x00000000
178 #define SPIDER_NET_IPSECINIT_VALUE 0x6f716f71
180 /* pause frames: automatic, no upper retransmission count */
181 /* outside loopback mode: ETOMOD signal dont matter, not connected */
182 #define SPIDER_NET_OPMODE_VALUE 0x00000063
183 /*#define SPIDER_NET_OPMODE_VALUE 0x001b0062*/
184 #define SPIDER_NET_LENLMT_VALUE 0x00000908
186 #define SPIDER_NET_MACAPAUSE_VALUE 0x00000800 /* about 1 ms */
187 #define SPIDER_NET_TXPAUSE_VALUE 0x00000000
189 #define SPIDER_NET_MACMODE_VALUE 0x00000001
190 #define SPIDER_NET_BURSTLMT_VALUE 0x00000200 /* about 16 us */
192 /* 1(0) enable r/tx dma
196 * 0(1) en/disable descr writeback on force end
200 * 00 burst alignment: 128 bytes
203 * 0 descr writeback size 32 bytes
204 * 0(1) descr chain end interrupt enable
205 * 0(1) descr status writeback enable */
207 /* to set RX_DMA_EN */
208 #define SPIDER_NET_DMA_RX_VALUE 0x80000000
209 #define SPIDER_NET_DMA_RX_FEND_VALUE 0x00030003
210 /* to set TX_DMA_EN */
211 #define SPIDER_NET_TX_DMA_EN 0x80000000
212 #define SPIDER_NET_GDTDCEIDIS 0x00000002
213 #define SPIDER_NET_DMA_TX_VALUE SPIDER_NET_TX_DMA_EN | \
214 SPIDER_NET_GDTDCEIDIS
215 #define SPIDER_NET_DMA_TX_FEND_VALUE 0x00030003
217 /* SPIDER_NET_UA_DESCR_VALUE is OR'ed with the unicast address */
218 #define SPIDER_NET_UA_DESCR_VALUE 0x00080000
219 #define SPIDER_NET_PROMISC_VALUE 0x00080000
220 #define SPIDER_NET_NONPROMISC_VALUE 0x00000000
222 #define SPIDER_NET_DMASEL_VALUE 0x00000001
224 #define SPIDER_NET_ECMODE_VALUE 0x00000000
226 #define SPIDER_NET_CKRCTRL_RUN_VALUE 0x1fff010f
227 #define SPIDER_NET_CKRCTRL_STOP_VALUE 0x0000010f
229 #define SPIDER_NET_SBIMSTATE_VALUE 0x00000000
230 #define SPIDER_NET_SBTMSTATE_VALUE 0x00000000
232 /* SPIDER_NET_GHIINT0STS bits, in reverse order so that they can be used
233 * with 1 << SPIDER_NET_... */
234 enum spider_net_int0_status {
235 SPIDER_NET_GPHYINT = 0,
242 SPIDER_NET_GPWOPCMPINT,
243 SPIDER_NET_GPROPCMPINT,
245 SPIDER_NET_GRMDADRINT,
246 SPIDER_NET_GRMARPINT,
248 SPIDER_NET_GDTDEN0INT,
249 SPIDER_NET_GDDDEN0INT,
250 SPIDER_NET_GDCDEN0INT,
251 SPIDER_NET_GDBDEN0INT,
252 SPIDER_NET_GDADEN0INT,
253 SPIDER_NET_GDTFDCINT,
254 SPIDER_NET_GDDFDCINT,
255 SPIDER_NET_GDCFDCINT,
256 SPIDER_NET_GDBFDCINT,
257 SPIDER_NET_GDAFDCINT,
259 SPIDER_NET_GDTDCEINT,
260 SPIDER_NET_GRFDNMINT,
261 SPIDER_NET_GRFCNMINT,
262 SPIDER_NET_GRFBNMINT,
263 SPIDER_NET_GRFANMINT,
265 SPIDER_NET_G1TMCNTINT,
266 SPIDER_NET_GFREECNTINT
268 /* GHIINT1STS bits */
269 enum spider_net_int1_status {
270 SPIDER_NET_GTMFLLINT = 0,
271 SPIDER_NET_GRMFLLINT,
272 SPIDER_NET_GTMSHTINT,
273 SPIDER_NET_GDTINVDINT,
274 SPIDER_NET_GRFDFLLINT,
275 SPIDER_NET_GDDDCEINT,
276 SPIDER_NET_GDDINVDINT,
277 SPIDER_NET_GRFCFLLINT,
278 SPIDER_NET_GDCDCEINT,
279 SPIDER_NET_GDCINVDINT,
280 SPIDER_NET_GRFBFLLINT,
281 SPIDER_NET_GDBDCEINT,
282 SPIDER_NET_GDBINVDINT,
283 SPIDER_NET_GRFAFLLINT,
284 SPIDER_NET_GDADCEINT,
285 SPIDER_NET_GDAINVDINT,
286 SPIDER_NET_GDTRSERINT,
287 SPIDER_NET_GDDRSERINT,
288 SPIDER_NET_GDCRSERINT,
289 SPIDER_NET_GDBRSERINT,
290 SPIDER_NET_GDARSERINT,
292 SPIDER_NET_GDTPTERINT,
293 SPIDER_NET_GDDPTERINT,
294 SPIDER_NET_GDCPTERINT,
295 SPIDER_NET_GDBPTERINT,
296 SPIDER_NET_GDAPTERINT
298 /* GHIINT2STS bits */
299 enum spider_net_int2_status {
300 SPIDER_NET_GPROPERINT = 0,
301 SPIDER_NET_GMCTCRSNGINT,
302 SPIDER_NET_GMCTLCOLINT,
303 SPIDER_NET_GMCTTMOTINT,
304 SPIDER_NET_GMCRCAERINT,
305 SPIDER_NET_GMCRCALERINT,
306 SPIDER_NET_GMCRALNERINT,
307 SPIDER_NET_GMCROVRINT,
308 SPIDER_NET_GMCRRNTINT,
309 SPIDER_NET_GMCRRXERINT,
310 SPIDER_NET_GTITCSERINT,
311 SPIDER_NET_GTIFMTERINT,
312 SPIDER_NET_GTIPKTRVKINT,
313 SPIDER_NET_GTISPINGINT,
314 SPIDER_NET_GTISADNGINT,
315 SPIDER_NET_GTISPDNGINT,
316 SPIDER_NET_GRIFMTERINT,
317 SPIDER_NET_GRIPKTRVKINT,
318 SPIDER_NET_GRISPINGINT,
319 SPIDER_NET_GRISADNGINT,
320 SPIDER_NET_GRISPDNGINT
323 #define SPIDER_NET_TXINT ( (1 << SPIDER_NET_GTTEDINT) | \
324 (1 << SPIDER_NET_GDTDCEINT) | \
325 (1 << SPIDER_NET_GDTFDCINT) )
327 /* we rely on flagged descriptor interrupts*/
328 #define SPIDER_NET_RXINT ( (1 << SPIDER_NET_GDAFDCINT) | \
329 (1 << SPIDER_NET_GRMFLLINT) )
331 #define SPIDER_NET_ERRINT ( 0xffffffff & \
332 (~SPIDER_NET_TXINT) & \
333 (~SPIDER_NET_RXINT) )
335 #define SPIDER_NET_GPREXEC 0x80000000
336 #define SPIDER_NET_GPRDAT_MASK 0x0000ffff
338 #define SPIDER_NET_DMAC_NOINTR_COMPLETE 0x00800000
339 #define SPIDER_NET_DMAC_NOCS 0x00040000
340 #define SPIDER_NET_DMAC_TCP 0x00020000
341 #define SPIDER_NET_DMAC_UDP 0x00030000
342 #define SPIDER_NET_TXDCEST 0x08000000
344 #define SPIDER_NET_DESCR_IND_PROC_MASK 0xF0000000
345 #define SPIDER_NET_DESCR_COMPLETE 0x00000000 /* used in rx and tx */
346 #define SPIDER_NET_DESCR_RESPONSE_ERROR 0x10000000 /* used in rx and tx */
347 #define SPIDER_NET_DESCR_PROTECTION_ERROR 0x20000000 /* used in rx and tx */
348 #define SPIDER_NET_DESCR_FRAME_END 0x40000000 /* used in rx */
349 #define SPIDER_NET_DESCR_FORCE_END 0x50000000 /* used in rx and tx */
350 #define SPIDER_NET_DESCR_CARDOWNED 0xA0000000 /* used in rx and tx */
351 #define SPIDER_NET_DESCR_NOT_IN_USE 0xF0000000
353 struct spider_net_descr {
354 /* as defined by the hardware */
360 u32 valid_size; /* all zeroes for tx */
362 u32 data_error; /* all zeroes for tx */
364 /* used in the driver */
367 struct spider_net_descr *next;
368 struct spider_net_descr *prev;
369 } __attribute__((aligned(32)));
371 struct spider_net_descr_chain {
373 struct spider_net_descr *head;
374 struct spider_net_descr *tail;
377 /* descriptor data_status bits */
378 #define SPIDER_NET_RX_IPCHK 29
379 #define SPIDER_NET_RX_TCPCHK 28
380 #define SPIDER_NET_VLAN_PACKET 21
381 #define SPIDER_NET_DATA_STATUS_CKSUM_MASK ( (1 << SPIDER_NET_RX_IPCHK) | \
382 (1 << SPIDER_NET_RX_TCPCHK) )
384 /* descriptor data_error bits */
385 #define SPIDER_NET_RX_IPCHKERR 27
386 #define SPIDER_NET_RX_RXTCPCHKERR 28
388 #define SPIDER_NET_DATA_ERR_CKSUM_MASK (1 << SPIDER_NET_RX_IPCHKERR)
390 /* the cases we don't pass the packet to the stack.
391 * 701b8000 would be correct, but every packets gets that flag */
392 #define SPIDER_NET_DESTROY_RX_FLAGS 0x700b8000
394 #define SPIDER_NET_DESCR_SIZE 32
396 /* this will be bigger some time */
397 struct spider_net_options {
398 int rx_csum; /* for rx: if 0 ip_summed=NONE,
399 if 1 and hw has verified, ip_summed=UNNECESSARY */
402 #define SPIDER_NET_DEFAULT_MSG ( NETIF_MSG_DRV | \
410 NETIF_MSG_TX_QUEUED | \
412 NETIF_MSG_TX_DONE | \
413 NETIF_MSG_RX_STATUS | \
414 NETIF_MSG_PKTDATA | \
418 struct spider_net_card {
419 struct net_device *netdev;
420 struct pci_dev *pdev;
425 struct spider_net_descr_chain tx_chain;
426 struct spider_net_descr_chain rx_chain;
428 struct net_device_stats netdev_stats;
430 struct spider_net_options options;
432 spinlock_t intmask_lock;
433 struct tasklet_struct rxram_full_tl;
434 struct timer_list tx_timer;
436 struct work_struct tx_timeout_task;
437 atomic_t tx_timeout_task_counter;
438 wait_queue_head_t waitq;
443 struct spider_net_descr descr[0];
446 #define pr_err(fmt,arg...) \
447 printk(KERN_ERR fmt ,##arg)