1 /* SPDX-License-Identifier: GPL-2.0-or-later */
3 * Network device driver for Cell Processor-Based Blade and Celleb platform
5 * (C) Copyright IBM Corp. 2005
6 * (C) Copyright 2006 TOSHIBA CORPORATION
15 #define VERSION "2.0 B"
17 #include <linux/sungem_phy.h>
19 int spider_net_stop(struct net_device *netdev);
20 int spider_net_open(struct net_device *netdev);
22 extern const struct ethtool_ops spider_net_ethtool_ops;
24 extern char spider_net_driver_name[];
26 #define SPIDER_NET_MAX_FRAME 2312
27 #define SPIDER_NET_MAX_MTU 2294
28 #define SPIDER_NET_MIN_MTU 64
30 #define SPIDER_NET_RXBUF_ALIGN 128
32 #define SPIDER_NET_RX_DESCRIPTORS_DEFAULT 256
33 #define SPIDER_NET_RX_DESCRIPTORS_MIN 16
34 #define SPIDER_NET_RX_DESCRIPTORS_MAX 512
36 #define SPIDER_NET_TX_DESCRIPTORS_DEFAULT 256
37 #define SPIDER_NET_TX_DESCRIPTORS_MIN 16
38 #define SPIDER_NET_TX_DESCRIPTORS_MAX 512
40 #define SPIDER_NET_TX_TIMER (HZ/5)
41 #define SPIDER_NET_ANEG_TIMER (HZ)
42 #define SPIDER_NET_ANEG_TIMEOUT 5
44 #define SPIDER_NET_RX_CSUM_DEFAULT 1
46 #define SPIDER_NET_WATCHDOG_TIMEOUT 50*HZ
48 #define SPIDER_NET_FIRMWARE_SEQS 6
49 #define SPIDER_NET_FIRMWARE_SEQWORDS 1024
50 #define SPIDER_NET_FIRMWARE_LEN (SPIDER_NET_FIRMWARE_SEQS * \
51 SPIDER_NET_FIRMWARE_SEQWORDS * \
53 #define SPIDER_NET_FIRMWARE_NAME "spider_fw.bin"
55 /** spider_net SMMIO registers */
56 #define SPIDER_NET_GHIINT0STS 0x00000000
57 #define SPIDER_NET_GHIINT1STS 0x00000004
58 #define SPIDER_NET_GHIINT2STS 0x00000008
59 #define SPIDER_NET_GHIINT0MSK 0x00000010
60 #define SPIDER_NET_GHIINT1MSK 0x00000014
61 #define SPIDER_NET_GHIINT2MSK 0x00000018
63 #define SPIDER_NET_GRESUMINTNUM 0x00000020
64 #define SPIDER_NET_GREINTNUM 0x00000024
66 #define SPIDER_NET_GFFRMNUM 0x00000028
67 #define SPIDER_NET_GFAFRMNUM 0x0000002c
68 #define SPIDER_NET_GFBFRMNUM 0x00000030
69 #define SPIDER_NET_GFCFRMNUM 0x00000034
70 #define SPIDER_NET_GFDFRMNUM 0x00000038
72 /* clear them (don't use it) */
73 #define SPIDER_NET_GFREECNNUM 0x0000003c
74 #define SPIDER_NET_GONETIMENUM 0x00000040
76 #define SPIDER_NET_GTOUTFRMNUM 0x00000044
78 #define SPIDER_NET_GTXMDSET 0x00000050
79 #define SPIDER_NET_GPCCTRL 0x00000054
80 #define SPIDER_NET_GRXMDSET 0x00000058
81 #define SPIDER_NET_GIPSECINIT 0x0000005c
82 #define SPIDER_NET_GFTRESTRT 0x00000060
83 #define SPIDER_NET_GRXDMAEN 0x00000064
84 #define SPIDER_NET_GMRWOLCTRL 0x00000068
85 #define SPIDER_NET_GPCWOPCMD 0x0000006c
86 #define SPIDER_NET_GPCROPCMD 0x00000070
87 #define SPIDER_NET_GTTFRMCNT 0x00000078
88 #define SPIDER_NET_GTESTMD 0x0000007c
90 #define SPIDER_NET_GSINIT 0x00000080
91 #define SPIDER_NET_GSnPRGADR 0x00000084
92 #define SPIDER_NET_GSnPRGDAT 0x00000088
94 #define SPIDER_NET_GMACOPEMD 0x00000100
95 #define SPIDER_NET_GMACLENLMT 0x00000108
96 #define SPIDER_NET_GMACST 0x00000110
97 #define SPIDER_NET_GMACINTEN 0x00000118
98 #define SPIDER_NET_GMACPHYCTRL 0x00000120
100 #define SPIDER_NET_GMACAPAUSE 0x00000154
101 #define SPIDER_NET_GMACTXPAUSE 0x00000164
103 #define SPIDER_NET_GMACMODE 0x000001b0
104 #define SPIDER_NET_GMACBSTLMT 0x000001b4
106 #define SPIDER_NET_GMACUNIMACU 0x000001c0
107 #define SPIDER_NET_GMACUNIMACL 0x000001c8
109 #define SPIDER_NET_GMRMHFILnR 0x00000400
110 #define SPIDER_NET_MULTICAST_HASHES 256
112 #define SPIDER_NET_GMRUAFILnR 0x00000500
113 #define SPIDER_NET_GMRUA0FIL15R 0x00000578
115 #define SPIDER_NET_GTTQMSK 0x00000934
117 /* RX DMA controller registers, all 0x00000a.. are for DMA controller A,
118 * 0x00000b.. for DMA controller B, etc. */
119 #define SPIDER_NET_GDADCHA 0x00000a00
120 #define SPIDER_NET_GDADMACCNTR 0x00000a04
121 #define SPIDER_NET_GDACTDPA 0x00000a08
122 #define SPIDER_NET_GDACTDCNT 0x00000a0c
123 #define SPIDER_NET_GDACDBADDR 0x00000a20
124 #define SPIDER_NET_GDACDBSIZE 0x00000a24
125 #define SPIDER_NET_GDACNEXTDA 0x00000a28
126 #define SPIDER_NET_GDACCOMST 0x00000a2c
127 #define SPIDER_NET_GDAWBCOMST 0x00000a30
128 #define SPIDER_NET_GDAWBRSIZE 0x00000a34
129 #define SPIDER_NET_GDAWBVSIZE 0x00000a38
130 #define SPIDER_NET_GDAWBTRST 0x00000a3c
131 #define SPIDER_NET_GDAWBTRERR 0x00000a40
133 /* TX DMA controller registers */
134 #define SPIDER_NET_GDTDCHA 0x00000e00
135 #define SPIDER_NET_GDTDMACCNTR 0x00000e04
136 #define SPIDER_NET_GDTCDPA 0x00000e08
137 #define SPIDER_NET_GDTDMASEL 0x00000e14
139 #define SPIDER_NET_ECMODE 0x00000f00
140 /* clock and reset control register */
141 #define SPIDER_NET_CKRCTRL 0x00000ff0
143 /** SCONFIG registers */
144 #define SPIDER_NET_SCONFIG_IOACTE 0x00002810
146 /** interrupt mask registers */
147 #define SPIDER_NET_INT0_MASK_VALUE 0x3f7fe2c7
148 #define SPIDER_NET_INT1_MASK_VALUE 0x0000fff2
149 #define SPIDER_NET_INT2_MASK_VALUE 0x000003f1
151 /* we rely on flagged descriptor interrupts */
152 #define SPIDER_NET_FRAMENUM_VALUE 0x00000000
153 /* set this first, then the FRAMENUM_VALUE */
154 #define SPIDER_NET_GFXFRAMES_VALUE 0x00000000
156 #define SPIDER_NET_STOP_SEQ_VALUE 0x00000000
157 #define SPIDER_NET_RUN_SEQ_VALUE 0x0000007e
159 #define SPIDER_NET_PHY_CTRL_VALUE 0x00040040
160 /* #define SPIDER_NET_PHY_CTRL_VALUE 0x01070080*/
161 #define SPIDER_NET_RXMODE_VALUE 0x00000011
162 /* auto retransmission in case of MAC aborts */
163 #define SPIDER_NET_TXMODE_VALUE 0x00010000
164 #define SPIDER_NET_RESTART_VALUE 0x00000000
165 #define SPIDER_NET_WOL_VALUE 0x00001111
167 #define SPIDER_NET_WOL_VALUE 0x00000000
169 #define SPIDER_NET_IPSECINIT_VALUE 0x6f716f71
171 /* pause frames: automatic, no upper retransmission count */
172 /* outside loopback mode: ETOMOD signal dont matter, not connected */
173 /* ETOMOD signal is brought to PHY reset. bit 2 must be 1 in Celleb */
174 #define SPIDER_NET_OPMODE_VALUE 0x00000067
175 /*#define SPIDER_NET_OPMODE_VALUE 0x001b0062*/
176 #define SPIDER_NET_LENLMT_VALUE 0x00000908
178 #define SPIDER_NET_MACAPAUSE_VALUE 0x00000800 /* about 1 ms */
179 #define SPIDER_NET_TXPAUSE_VALUE 0x00000000
181 #define SPIDER_NET_MACMODE_VALUE 0x00000001
182 #define SPIDER_NET_BURSTLMT_VALUE 0x00000200 /* about 16 us */
184 /* DMAC control register GDMACCNTR
186 * 1(0) enable r/tx dma
190 * 0(1) en/disable descr writeback on force end
194 * 00 burst alignment: 128 bytes
195 * 11 burst alignment: 1024 bytes
198 * 0 descr writeback size 32 bytes
199 * 0(1) descr chain end interrupt enable
200 * 0(1) descr status writeback enable */
202 /* to set RX_DMA_EN */
203 #define SPIDER_NET_DMA_RX_VALUE 0x80000000
204 #define SPIDER_NET_DMA_RX_FEND_VALUE 0x00030003
205 /* to set TX_DMA_EN */
206 #define SPIDER_NET_TX_DMA_EN 0x80000000
207 #define SPIDER_NET_GDTBSTA 0x00000300
208 #define SPIDER_NET_GDTDCEIDIS 0x00000002
209 #define SPIDER_NET_DMA_TX_VALUE SPIDER_NET_TX_DMA_EN | \
210 SPIDER_NET_GDTDCEIDIS | \
213 #define SPIDER_NET_DMA_TX_FEND_VALUE 0x00030003
215 /* SPIDER_NET_UA_DESCR_VALUE is OR'ed with the unicast address */
216 #define SPIDER_NET_UA_DESCR_VALUE 0x00080000
217 #define SPIDER_NET_PROMISC_VALUE 0x00080000
218 #define SPIDER_NET_NONPROMISC_VALUE 0x00000000
220 #define SPIDER_NET_DMASEL_VALUE 0x00000001
222 #define SPIDER_NET_ECMODE_VALUE 0x00000000
224 #define SPIDER_NET_CKRCTRL_RUN_VALUE 0x1fff010f
225 #define SPIDER_NET_CKRCTRL_STOP_VALUE 0x0000010f
227 #define SPIDER_NET_SBIMSTATE_VALUE 0x00000000
228 #define SPIDER_NET_SBTMSTATE_VALUE 0x00000000
230 /* SPIDER_NET_GHIINT0STS bits, in reverse order so that they can be used
231 * with 1 << SPIDER_NET_... */
232 enum spider_net_int0_status {
233 SPIDER_NET_GPHYINT = 0,
240 SPIDER_NET_GPWOPCMPINT,
241 SPIDER_NET_GPROPCMPINT,
243 SPIDER_NET_GRMDADRINT,
244 SPIDER_NET_GRMARPINT,
246 SPIDER_NET_GDTDEN0INT,
247 SPIDER_NET_GDDDEN0INT,
248 SPIDER_NET_GDCDEN0INT,
249 SPIDER_NET_GDBDEN0INT,
250 SPIDER_NET_GDADEN0INT,
251 SPIDER_NET_GDTFDCINT,
252 SPIDER_NET_GDDFDCINT,
253 SPIDER_NET_GDCFDCINT,
254 SPIDER_NET_GDBFDCINT,
255 SPIDER_NET_GDAFDCINT,
257 SPIDER_NET_GDTDCEINT,
258 SPIDER_NET_GRFDNMINT,
259 SPIDER_NET_GRFCNMINT,
260 SPIDER_NET_GRFBNMINT,
261 SPIDER_NET_GRFANMINT,
263 SPIDER_NET_G1TMCNTINT,
264 SPIDER_NET_GFREECNTINT
266 /* GHIINT1STS bits */
267 enum spider_net_int1_status {
268 SPIDER_NET_GTMFLLINT = 0,
269 SPIDER_NET_GRMFLLINT,
270 SPIDER_NET_GTMSHTINT,
271 SPIDER_NET_GDTINVDINT,
272 SPIDER_NET_GRFDFLLINT,
273 SPIDER_NET_GDDDCEINT,
274 SPIDER_NET_GDDINVDINT,
275 SPIDER_NET_GRFCFLLINT,
276 SPIDER_NET_GDCDCEINT,
277 SPIDER_NET_GDCINVDINT,
278 SPIDER_NET_GRFBFLLINT,
279 SPIDER_NET_GDBDCEINT,
280 SPIDER_NET_GDBINVDINT,
281 SPIDER_NET_GRFAFLLINT,
282 SPIDER_NET_GDADCEINT,
283 SPIDER_NET_GDAINVDINT,
284 SPIDER_NET_GDTRSERINT,
285 SPIDER_NET_GDDRSERINT,
286 SPIDER_NET_GDCRSERINT,
287 SPIDER_NET_GDBRSERINT,
288 SPIDER_NET_GDARSERINT,
290 SPIDER_NET_GDTPTERINT,
291 SPIDER_NET_GDDPTERINT,
292 SPIDER_NET_GDCPTERINT,
293 SPIDER_NET_GDBPTERINT,
294 SPIDER_NET_GDAPTERINT
296 /* GHIINT2STS bits */
297 enum spider_net_int2_status {
298 SPIDER_NET_GPROPERINT = 0,
299 SPIDER_NET_GMCTCRSNGINT,
300 SPIDER_NET_GMCTLCOLINT,
301 SPIDER_NET_GMCTTMOTINT,
302 SPIDER_NET_GMCRCAERINT,
303 SPIDER_NET_GMCRCALERINT,
304 SPIDER_NET_GMCRALNERINT,
305 SPIDER_NET_GMCROVRINT,
306 SPIDER_NET_GMCRRNTINT,
307 SPIDER_NET_GMCRRXERINT,
308 SPIDER_NET_GTITCSERINT,
309 SPIDER_NET_GTIFMTERINT,
310 SPIDER_NET_GTIPKTRVKINT,
311 SPIDER_NET_GTISPINGINT,
312 SPIDER_NET_GTISADNGINT,
313 SPIDER_NET_GTISPDNGINT,
314 SPIDER_NET_GRIFMTERINT,
315 SPIDER_NET_GRIPKTRVKINT,
316 SPIDER_NET_GRISPINGINT,
317 SPIDER_NET_GRISADNGINT,
318 SPIDER_NET_GRISPDNGINT
321 #define SPIDER_NET_TXINT (1 << SPIDER_NET_GDTFDCINT)
323 /* We rely on flagged descriptor interrupts */
324 #define SPIDER_NET_RXINT ( (1 << SPIDER_NET_GDAFDCINT) )
326 #define SPIDER_NET_LINKINT ( 1 << SPIDER_NET_GMAC2INT )
328 #define SPIDER_NET_ERRINT ( 0xffffffff & \
329 (~SPIDER_NET_TXINT) & \
330 (~SPIDER_NET_RXINT) & \
331 (~SPIDER_NET_LINKINT) )
333 #define SPIDER_NET_GPREXEC 0x80000000
334 #define SPIDER_NET_GPRDAT_MASK 0x0000ffff
336 #define SPIDER_NET_DMAC_NOINTR_COMPLETE 0x00800000
337 #define SPIDER_NET_DMAC_TXFRMTL 0x00040000
338 #define SPIDER_NET_DMAC_TCP 0x00020000
339 #define SPIDER_NET_DMAC_UDP 0x00030000
340 #define SPIDER_NET_TXDCEST 0x08000000
342 #define SPIDER_NET_DESCR_RXFDIS 0x00000001
343 #define SPIDER_NET_DESCR_RXDCEIS 0x00000002
344 #define SPIDER_NET_DESCR_RXDEN0IS 0x00000004
345 #define SPIDER_NET_DESCR_RXINVDIS 0x00000008
346 #define SPIDER_NET_DESCR_RXRERRIS 0x00000010
347 #define SPIDER_NET_DESCR_RXFDCIMS 0x00000100
348 #define SPIDER_NET_DESCR_RXDCEIMS 0x00000200
349 #define SPIDER_NET_DESCR_RXDEN0IMS 0x00000400
350 #define SPIDER_NET_DESCR_RXINVDIMS 0x00000800
351 #define SPIDER_NET_DESCR_RXRERRMIS 0x00001000
352 #define SPIDER_NET_DESCR_UNUSED 0x077fe0e0
354 #define SPIDER_NET_DESCR_IND_PROC_MASK 0xF0000000
355 #define SPIDER_NET_DESCR_COMPLETE 0x00000000 /* used in rx and tx */
356 #define SPIDER_NET_DESCR_RESPONSE_ERROR 0x10000000 /* used in rx and tx */
357 #define SPIDER_NET_DESCR_PROTECTION_ERROR 0x20000000 /* used in rx and tx */
358 #define SPIDER_NET_DESCR_FRAME_END 0x40000000 /* used in rx */
359 #define SPIDER_NET_DESCR_FORCE_END 0x50000000 /* used in rx and tx */
360 #define SPIDER_NET_DESCR_CARDOWNED 0xA0000000 /* used in rx and tx */
361 #define SPIDER_NET_DESCR_NOT_IN_USE 0xF0000000
362 #define SPIDER_NET_DESCR_TXDESFLG 0x00800000
364 #define SPIDER_NET_DESCR_BAD_STATUS (SPIDER_NET_DESCR_RXDEN0IS | \
365 SPIDER_NET_DESCR_RXRERRIS | \
366 SPIDER_NET_DESCR_RXDEN0IMS | \
367 SPIDER_NET_DESCR_RXINVDIMS | \
368 SPIDER_NET_DESCR_RXRERRMIS | \
369 SPIDER_NET_DESCR_UNUSED)
371 /* Descriptor, as defined by the hardware */
372 struct spider_net_hw_descr {
378 u32 valid_size; /* all zeroes for tx */
380 u32 data_error; /* all zeroes for tx */
381 } __attribute__((aligned(32)));
383 struct spider_net_descr {
384 struct spider_net_hw_descr *hwdescr;
387 struct spider_net_descr *next;
388 struct spider_net_descr *prev;
391 struct spider_net_descr_chain {
393 struct spider_net_descr *head;
394 struct spider_net_descr *tail;
395 struct spider_net_descr *ring;
397 struct spider_net_hw_descr *hwring;
401 /* descriptor data_status bits */
402 #define SPIDER_NET_RX_IPCHK 29
403 #define SPIDER_NET_RX_TCPCHK 28
404 #define SPIDER_NET_VLAN_PACKET 21
405 #define SPIDER_NET_DATA_STATUS_CKSUM_MASK ( (1 << SPIDER_NET_RX_IPCHK) | \
406 (1 << SPIDER_NET_RX_TCPCHK) )
408 /* descriptor data_error bits */
409 #define SPIDER_NET_RX_IPCHKERR 27
410 #define SPIDER_NET_RX_RXTCPCHKERR 28
412 #define SPIDER_NET_DATA_ERR_CKSUM_MASK (1 << SPIDER_NET_RX_IPCHKERR)
414 /* the cases we don't pass the packet to the stack.
415 * 701b8000 would be correct, but every packets gets that flag */
416 #define SPIDER_NET_DESTROY_RX_FLAGS 0x700b8000
418 #define SPIDER_NET_DEFAULT_MSG ( NETIF_MSG_DRV | \
426 NETIF_MSG_TX_QUEUED | \
428 NETIF_MSG_TX_DONE | \
429 NETIF_MSG_RX_STATUS | \
430 NETIF_MSG_PKTDATA | \
434 struct spider_net_extra_stats {
435 unsigned long rx_desc_error;
436 unsigned long tx_timeouts;
437 unsigned long alloc_rx_skb_error;
438 unsigned long rx_iommu_map_error;
439 unsigned long tx_iommu_map_error;
440 unsigned long rx_desc_unk_state;
443 struct spider_net_card {
444 struct net_device *netdev;
445 struct pci_dev *pdev;
448 struct napi_struct napi;
454 struct spider_net_descr_chain tx_chain;
455 struct spider_net_descr_chain rx_chain;
456 struct spider_net_descr *low_watermark;
459 struct timer_list aneg_timer;
460 struct timer_list tx_timer;
461 struct work_struct tx_timeout_task;
462 atomic_t tx_timeout_task_counter;
463 wait_queue_head_t waitq;
465 int ignore_rx_ramfull;
469 struct spider_net_extra_stats spider_stats;
471 /* Must be last item in struct */
472 struct spider_net_descr darray[];