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 #define VERSION "1.6 B"
29 #include "sungem_phy.h"
31 extern int spider_net_stop(struct net_device *netdev);
32 extern int spider_net_open(struct net_device *netdev);
34 extern const struct ethtool_ops spider_net_ethtool_ops;
36 extern char spider_net_driver_name[];
38 #define SPIDER_NET_MAX_FRAME 2312
39 #define SPIDER_NET_MAX_MTU 2294
40 #define SPIDER_NET_MIN_MTU 64
42 #define SPIDER_NET_RXBUF_ALIGN 128
44 #define SPIDER_NET_RX_DESCRIPTORS_DEFAULT 256
45 #define SPIDER_NET_RX_DESCRIPTORS_MIN 16
46 #define SPIDER_NET_RX_DESCRIPTORS_MAX 512
48 #define SPIDER_NET_TX_DESCRIPTORS_DEFAULT 256
49 #define SPIDER_NET_TX_DESCRIPTORS_MIN 16
50 #define SPIDER_NET_TX_DESCRIPTORS_MAX 512
52 #define SPIDER_NET_TX_TIMER (HZ/5)
53 #define SPIDER_NET_ANEG_TIMER (HZ)
54 #define SPIDER_NET_ANEG_TIMEOUT 2
56 #define SPIDER_NET_RX_CSUM_DEFAULT 1
58 #define SPIDER_NET_WATCHDOG_TIMEOUT 50*HZ
59 #define SPIDER_NET_NAPI_WEIGHT 64
61 #define SPIDER_NET_FIRMWARE_SEQS 6
62 #define SPIDER_NET_FIRMWARE_SEQWORDS 1024
63 #define SPIDER_NET_FIRMWARE_LEN (SPIDER_NET_FIRMWARE_SEQS * \
64 SPIDER_NET_FIRMWARE_SEQWORDS * \
66 #define SPIDER_NET_FIRMWARE_NAME "spider_fw.bin"
68 /** spider_net SMMIO registers */
69 #define SPIDER_NET_GHIINT0STS 0x00000000
70 #define SPIDER_NET_GHIINT1STS 0x00000004
71 #define SPIDER_NET_GHIINT2STS 0x00000008
72 #define SPIDER_NET_GHIINT0MSK 0x00000010
73 #define SPIDER_NET_GHIINT1MSK 0x00000014
74 #define SPIDER_NET_GHIINT2MSK 0x00000018
76 #define SPIDER_NET_GRESUMINTNUM 0x00000020
77 #define SPIDER_NET_GREINTNUM 0x00000024
79 #define SPIDER_NET_GFFRMNUM 0x00000028
80 #define SPIDER_NET_GFAFRMNUM 0x0000002c
81 #define SPIDER_NET_GFBFRMNUM 0x00000030
82 #define SPIDER_NET_GFCFRMNUM 0x00000034
83 #define SPIDER_NET_GFDFRMNUM 0x00000038
85 /* clear them (don't use it) */
86 #define SPIDER_NET_GFREECNNUM 0x0000003c
87 #define SPIDER_NET_GONETIMENUM 0x00000040
89 #define SPIDER_NET_GTOUTFRMNUM 0x00000044
91 #define SPIDER_NET_GTXMDSET 0x00000050
92 #define SPIDER_NET_GPCCTRL 0x00000054
93 #define SPIDER_NET_GRXMDSET 0x00000058
94 #define SPIDER_NET_GIPSECINIT 0x0000005c
95 #define SPIDER_NET_GFTRESTRT 0x00000060
96 #define SPIDER_NET_GRXDMAEN 0x00000064
97 #define SPIDER_NET_GMRWOLCTRL 0x00000068
98 #define SPIDER_NET_GPCWOPCMD 0x0000006c
99 #define SPIDER_NET_GPCROPCMD 0x00000070
100 #define SPIDER_NET_GTTFRMCNT 0x00000078
101 #define SPIDER_NET_GTESTMD 0x0000007c
103 #define SPIDER_NET_GSINIT 0x00000080
104 #define SPIDER_NET_GSnPRGADR 0x00000084
105 #define SPIDER_NET_GSnPRGDAT 0x00000088
107 #define SPIDER_NET_GMACOPEMD 0x00000100
108 #define SPIDER_NET_GMACLENLMT 0x00000108
109 #define SPIDER_NET_GMACST 0x00000110
110 #define SPIDER_NET_GMACINTEN 0x00000118
111 #define SPIDER_NET_GMACPHYCTRL 0x00000120
113 #define SPIDER_NET_GMACAPAUSE 0x00000154
114 #define SPIDER_NET_GMACTXPAUSE 0x00000164
116 #define SPIDER_NET_GMACMODE 0x000001b0
117 #define SPIDER_NET_GMACBSTLMT 0x000001b4
119 #define SPIDER_NET_GMACUNIMACU 0x000001c0
120 #define SPIDER_NET_GMACUNIMACL 0x000001c8
122 #define SPIDER_NET_GMRMHFILnR 0x00000400
123 #define SPIDER_NET_MULTICAST_HASHES 256
125 #define SPIDER_NET_GMRUAFILnR 0x00000500
126 #define SPIDER_NET_GMRUA0FIL15R 0x00000578
128 #define SPIDER_NET_GTTQMSK 0x00000934
130 /* RX DMA controller registers, all 0x00000a.. are for DMA controller A,
131 * 0x00000b.. for DMA controller B, etc. */
132 #define SPIDER_NET_GDADCHA 0x00000a00
133 #define SPIDER_NET_GDADMACCNTR 0x00000a04
134 #define SPIDER_NET_GDACTDPA 0x00000a08
135 #define SPIDER_NET_GDACTDCNT 0x00000a0c
136 #define SPIDER_NET_GDACDBADDR 0x00000a20
137 #define SPIDER_NET_GDACDBSIZE 0x00000a24
138 #define SPIDER_NET_GDACNEXTDA 0x00000a28
139 #define SPIDER_NET_GDACCOMST 0x00000a2c
140 #define SPIDER_NET_GDAWBCOMST 0x00000a30
141 #define SPIDER_NET_GDAWBRSIZE 0x00000a34
142 #define SPIDER_NET_GDAWBVSIZE 0x00000a38
143 #define SPIDER_NET_GDAWBTRST 0x00000a3c
144 #define SPIDER_NET_GDAWBTRERR 0x00000a40
146 /* TX DMA controller registers */
147 #define SPIDER_NET_GDTDCHA 0x00000e00
148 #define SPIDER_NET_GDTDMACCNTR 0x00000e04
149 #define SPIDER_NET_GDTCDPA 0x00000e08
150 #define SPIDER_NET_GDTDMASEL 0x00000e14
152 #define SPIDER_NET_ECMODE 0x00000f00
153 /* clock and reset control register */
154 #define SPIDER_NET_CKRCTRL 0x00000ff0
156 /** SCONFIG registers */
157 #define SPIDER_NET_SCONFIG_IOACTE 0x00002810
159 /** interrupt mask registers */
160 #define SPIDER_NET_INT0_MASK_VALUE 0x3f7fe2c7
161 #define SPIDER_NET_INT1_MASK_VALUE 0xffff7ff7
162 /* no MAC aborts -> auto retransmission */
163 #define SPIDER_NET_INT2_MASK_VALUE 0xffef7ff1
165 /* we rely on flagged descriptor interrupts */
166 #define SPIDER_NET_FRAMENUM_VALUE 0x00000000
167 /* set this first, then the FRAMENUM_VALUE */
168 #define SPIDER_NET_GFXFRAMES_VALUE 0x00000000
170 #define SPIDER_NET_STOP_SEQ_VALUE 0x00000000
171 #define SPIDER_NET_RUN_SEQ_VALUE 0x0000007e
173 #define SPIDER_NET_PHY_CTRL_VALUE 0x00040040
174 /* #define SPIDER_NET_PHY_CTRL_VALUE 0x01070080*/
175 #define SPIDER_NET_RXMODE_VALUE 0x00000011
176 /* auto retransmission in case of MAC aborts */
177 #define SPIDER_NET_TXMODE_VALUE 0x00010000
178 #define SPIDER_NET_RESTART_VALUE 0x00000000
179 #define SPIDER_NET_WOL_VALUE 0x00001111
181 #define SPIDER_NET_WOL_VALUE 0x00000000
183 #define SPIDER_NET_IPSECINIT_VALUE 0x6f716f71
185 /* pause frames: automatic, no upper retransmission count */
186 /* outside loopback mode: ETOMOD signal dont matter, not connected */
187 #define SPIDER_NET_OPMODE_VALUE 0x00000063
188 /*#define SPIDER_NET_OPMODE_VALUE 0x001b0062*/
189 #define SPIDER_NET_LENLMT_VALUE 0x00000908
191 #define SPIDER_NET_MACAPAUSE_VALUE 0x00000800 /* about 1 ms */
192 #define SPIDER_NET_TXPAUSE_VALUE 0x00000000
194 #define SPIDER_NET_MACMODE_VALUE 0x00000001
195 #define SPIDER_NET_BURSTLMT_VALUE 0x00000200 /* about 16 us */
197 /* DMAC control register GDMACCNTR
199 * 1(0) enable r/tx dma
203 * 0(1) en/disable descr writeback on force end
207 * 00 burst alignment: 128 bytes
208 * 11 burst alignment: 1024 bytes
211 * 0 descr writeback size 32 bytes
212 * 0(1) descr chain end interrupt enable
213 * 0(1) descr status writeback enable */
215 /* to set RX_DMA_EN */
216 #define SPIDER_NET_DMA_RX_VALUE 0x80000000
217 #define SPIDER_NET_DMA_RX_FEND_VALUE 0x00030003
218 /* to set TX_DMA_EN */
219 #define SPIDER_NET_TX_DMA_EN 0x80000000
220 #define SPIDER_NET_GDTBSTA 0x00000300
221 #define SPIDER_NET_GDTDCEIDIS 0x00000002
222 #define SPIDER_NET_DMA_TX_VALUE SPIDER_NET_TX_DMA_EN | \
225 #define SPIDER_NET_DMA_TX_FEND_VALUE 0x00030003
227 /* SPIDER_NET_UA_DESCR_VALUE is OR'ed with the unicast address */
228 #define SPIDER_NET_UA_DESCR_VALUE 0x00080000
229 #define SPIDER_NET_PROMISC_VALUE 0x00080000
230 #define SPIDER_NET_NONPROMISC_VALUE 0x00000000
232 #define SPIDER_NET_DMASEL_VALUE 0x00000001
234 #define SPIDER_NET_ECMODE_VALUE 0x00000000
236 #define SPIDER_NET_CKRCTRL_RUN_VALUE 0x1fff010f
237 #define SPIDER_NET_CKRCTRL_STOP_VALUE 0x0000010f
239 #define SPIDER_NET_SBIMSTATE_VALUE 0x00000000
240 #define SPIDER_NET_SBTMSTATE_VALUE 0x00000000
242 /* SPIDER_NET_GHIINT0STS bits, in reverse order so that they can be used
243 * with 1 << SPIDER_NET_... */
244 enum spider_net_int0_status {
245 SPIDER_NET_GPHYINT = 0,
252 SPIDER_NET_GPWOPCMPINT,
253 SPIDER_NET_GPROPCMPINT,
255 SPIDER_NET_GRMDADRINT,
256 SPIDER_NET_GRMARPINT,
258 SPIDER_NET_GDTDEN0INT,
259 SPIDER_NET_GDDDEN0INT,
260 SPIDER_NET_GDCDEN0INT,
261 SPIDER_NET_GDBDEN0INT,
262 SPIDER_NET_GDADEN0INT,
263 SPIDER_NET_GDTFDCINT,
264 SPIDER_NET_GDDFDCINT,
265 SPIDER_NET_GDCFDCINT,
266 SPIDER_NET_GDBFDCINT,
267 SPIDER_NET_GDAFDCINT,
269 SPIDER_NET_GDTDCEINT,
270 SPIDER_NET_GRFDNMINT,
271 SPIDER_NET_GRFCNMINT,
272 SPIDER_NET_GRFBNMINT,
273 SPIDER_NET_GRFANMINT,
275 SPIDER_NET_G1TMCNTINT,
276 SPIDER_NET_GFREECNTINT
278 /* GHIINT1STS bits */
279 enum spider_net_int1_status {
280 SPIDER_NET_GTMFLLINT = 0,
281 SPIDER_NET_GRMFLLINT,
282 SPIDER_NET_GTMSHTINT,
283 SPIDER_NET_GDTINVDINT,
284 SPIDER_NET_GRFDFLLINT,
285 SPIDER_NET_GDDDCEINT,
286 SPIDER_NET_GDDINVDINT,
287 SPIDER_NET_GRFCFLLINT,
288 SPIDER_NET_GDCDCEINT,
289 SPIDER_NET_GDCINVDINT,
290 SPIDER_NET_GRFBFLLINT,
291 SPIDER_NET_GDBDCEINT,
292 SPIDER_NET_GDBINVDINT,
293 SPIDER_NET_GRFAFLLINT,
294 SPIDER_NET_GDADCEINT,
295 SPIDER_NET_GDAINVDINT,
296 SPIDER_NET_GDTRSERINT,
297 SPIDER_NET_GDDRSERINT,
298 SPIDER_NET_GDCRSERINT,
299 SPIDER_NET_GDBRSERINT,
300 SPIDER_NET_GDARSERINT,
302 SPIDER_NET_GDTPTERINT,
303 SPIDER_NET_GDDPTERINT,
304 SPIDER_NET_GDCPTERINT,
305 SPIDER_NET_GDBPTERINT,
306 SPIDER_NET_GDAPTERINT
308 /* GHIINT2STS bits */
309 enum spider_net_int2_status {
310 SPIDER_NET_GPROPERINT = 0,
311 SPIDER_NET_GMCTCRSNGINT,
312 SPIDER_NET_GMCTLCOLINT,
313 SPIDER_NET_GMCTTMOTINT,
314 SPIDER_NET_GMCRCAERINT,
315 SPIDER_NET_GMCRCALERINT,
316 SPIDER_NET_GMCRALNERINT,
317 SPIDER_NET_GMCROVRINT,
318 SPIDER_NET_GMCRRNTINT,
319 SPIDER_NET_GMCRRXERINT,
320 SPIDER_NET_GTITCSERINT,
321 SPIDER_NET_GTIFMTERINT,
322 SPIDER_NET_GTIPKTRVKINT,
323 SPIDER_NET_GTISPINGINT,
324 SPIDER_NET_GTISADNGINT,
325 SPIDER_NET_GTISPDNGINT,
326 SPIDER_NET_GRIFMTERINT,
327 SPIDER_NET_GRIPKTRVKINT,
328 SPIDER_NET_GRISPINGINT,
329 SPIDER_NET_GRISADNGINT,
330 SPIDER_NET_GRISPDNGINT
333 #define SPIDER_NET_TXINT ( (1 << SPIDER_NET_GDTFDCINT) | \
334 (1 << SPIDER_NET_GDTDCEINT) )
336 /* We rely on flagged descriptor interrupts */
337 #define SPIDER_NET_RXINT ( (1 << SPIDER_NET_GDAFDCINT) )
339 #define SPIDER_NET_LINKINT ( 1 << SPIDER_NET_GMAC2INT )
341 #define SPIDER_NET_ERRINT ( 0xffffffff & \
342 (~SPIDER_NET_TXINT) & \
343 (~SPIDER_NET_RXINT) & \
344 (~SPIDER_NET_LINKINT) )
346 #define SPIDER_NET_GPREXEC 0x80000000
347 #define SPIDER_NET_GPRDAT_MASK 0x0000ffff
349 #define SPIDER_NET_DMAC_NOINTR_COMPLETE 0x00800000
350 #define SPIDER_NET_DMAC_NOCS 0x00040000
351 #define SPIDER_NET_DMAC_TCP 0x00020000
352 #define SPIDER_NET_DMAC_UDP 0x00030000
353 #define SPIDER_NET_TXDCEST 0x08000000
355 #define SPIDER_NET_DESCR_IND_PROC_MASK 0xF0000000
356 #define SPIDER_NET_DESCR_COMPLETE 0x00000000 /* used in rx and tx */
357 #define SPIDER_NET_DESCR_RESPONSE_ERROR 0x10000000 /* used in rx and tx */
358 #define SPIDER_NET_DESCR_PROTECTION_ERROR 0x20000000 /* used in rx and tx */
359 #define SPIDER_NET_DESCR_FRAME_END 0x40000000 /* used in rx */
360 #define SPIDER_NET_DESCR_FORCE_END 0x50000000 /* used in rx and tx */
361 #define SPIDER_NET_DESCR_CARDOWNED 0xA0000000 /* used in rx and tx */
362 #define SPIDER_NET_DESCR_NOT_IN_USE 0xF0000000
363 #define SPIDER_NET_DESCR_TXDESFLG 0x00800000
365 struct spider_net_descr {
366 /* as defined by the hardware */
372 u32 valid_size; /* all zeroes for tx */
374 u32 data_error; /* all zeroes for tx */
376 /* used in the driver */
379 struct spider_net_descr *next;
380 struct spider_net_descr *prev;
381 } __attribute__((aligned(32)));
383 struct spider_net_descr_chain {
385 struct spider_net_descr *head;
386 struct spider_net_descr *tail;
387 struct spider_net_descr *ring;
392 /* descriptor data_status bits */
393 #define SPIDER_NET_RX_IPCHK 29
394 #define SPIDER_NET_RX_TCPCHK 28
395 #define SPIDER_NET_VLAN_PACKET 21
396 #define SPIDER_NET_DATA_STATUS_CKSUM_MASK ( (1 << SPIDER_NET_RX_IPCHK) | \
397 (1 << SPIDER_NET_RX_TCPCHK) )
399 /* descriptor data_error bits */
400 #define SPIDER_NET_RX_IPCHKERR 27
401 #define SPIDER_NET_RX_RXTCPCHKERR 28
403 #define SPIDER_NET_DATA_ERR_CKSUM_MASK (1 << SPIDER_NET_RX_IPCHKERR)
405 /* the cases we don't pass the packet to the stack.
406 * 701b8000 would be correct, but every packets gets that flag */
407 #define SPIDER_NET_DESTROY_RX_FLAGS 0x700b8000
409 /* this will be bigger some time */
410 struct spider_net_options {
411 int rx_csum; /* for rx: if 0 ip_summed=NONE,
412 if 1 and hw has verified, ip_summed=UNNECESSARY */
415 #define SPIDER_NET_DEFAULT_MSG ( NETIF_MSG_DRV | \
423 NETIF_MSG_TX_QUEUED | \
425 NETIF_MSG_TX_DONE | \
426 NETIF_MSG_RX_STATUS | \
427 NETIF_MSG_PKTDATA | \
431 struct spider_net_extra_stats {
432 unsigned long rx_desc_error;
433 unsigned long tx_timeouts;
434 unsigned long alloc_rx_skb_error;
435 unsigned long rx_iommu_map_error;
436 unsigned long tx_iommu_map_error;
437 unsigned long rx_desc_unk_state;
440 struct spider_net_card {
441 struct net_device *netdev;
442 struct pci_dev *pdev;
447 struct spider_net_descr_chain tx_chain;
448 struct spider_net_descr_chain rx_chain;
449 struct spider_net_descr *low_watermark;
452 struct timer_list aneg_timer;
453 struct timer_list tx_timer;
454 struct work_struct tx_timeout_task;
455 atomic_t tx_timeout_task_counter;
456 wait_queue_head_t waitq;
460 struct net_device_stats netdev_stats;
461 struct spider_net_extra_stats spider_stats;
462 struct spider_net_options options;
465 #define pr_err(fmt,arg...) \
466 printk(KERN_ERR fmt ,##arg)